/*
* Copyright (C) 2006 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package android.widget;
import android.R;
import android.content.ClipData;
import android.content.ClipData.Item;
import android.content.ClipboardManager;
import android.content.Context;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.content.res.ColorStateList;
import android.content.res.CompatibilityInfo;
import android.content.res.Resources;
import android.content.res.TypedArray;
import android.content.res.XmlResourceParser;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.graphics.Path;
import android.graphics.Rect;
import android.graphics.RectF;
import android.graphics.Typeface;
import android.graphics.drawable.Drawable;
import android.inputmethodservice.ExtractEditText;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.os.Parcel;
import android.os.Parcelable;
import android.os.SystemClock;
import android.provider.Settings;
import android.text.BoringLayout;
import android.text.DynamicLayout;
import android.text.Editable;
import android.text.GetChars;
import android.text.GraphicsOperations;
import android.text.InputFilter;
import android.text.InputType;
import android.text.Layout;
import android.text.ParcelableSpan;
import android.text.Selection;
import android.text.SpanWatcher;
import android.text.Spannable;
import android.text.SpannableString;
import android.text.SpannableStringBuilder;
import android.text.Spanned;
import android.text.SpannedString;
import android.text.StaticLayout;
import android.text.TextDirectionHeuristic;
import android.text.TextDirectionHeuristics;
import android.text.TextPaint;
import android.text.TextUtils;
import android.text.TextUtils.TruncateAt;
import android.text.TextWatcher;
import android.text.method.AllCapsTransformationMethod;
import android.text.method.ArrowKeyMovementMethod;
import android.text.method.DateKeyListener;
import android.text.method.DateTimeKeyListener;
import android.text.method.DialerKeyListener;
import android.text.method.DigitsKeyListener;
import android.text.method.KeyListener;
import android.text.method.LinkMovementMethod;
import android.text.method.MetaKeyKeyListener;
import android.text.method.MovementMethod;
import android.text.method.PasswordTransformationMethod;
import android.text.method.SingleLineTransformationMethod;
import android.text.method.TextKeyListener;
import android.text.method.TimeKeyListener;
import android.text.method.TransformationMethod;
import android.text.method.TransformationMethod2;
import android.text.method.WordIterator;
import android.text.style.ClickableSpan;
import android.text.style.EasyEditSpan;
import android.text.style.ParagraphStyle;
import android.text.style.SpellCheckSpan;
import android.text.style.SuggestionRangeSpan;
import android.text.style.SuggestionSpan;
import android.text.style.TextAppearanceSpan;
import android.text.style.URLSpan;
import android.text.style.UpdateAppearance;
import android.text.util.Linkify;
import android.util.AttributeSet;
import android.util.DisplayMetrics;
import android.util.FloatMath;
import android.util.Log;
import android.util.TypedValue;
import android.view.ActionMode;
import android.view.ActionMode.Callback;
import android.view.DragEvent;
import android.view.Gravity;
import android.view.HapticFeedbackConstants;
import android.view.KeyCharacterMap;
import android.view.KeyEvent;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuItem;
import android.view.MotionEvent;
import android.view.View;
import android.view.ViewConfiguration;
import android.view.ViewDebug;
import android.view.ViewGroup;
import android.view.ViewGroup.LayoutParams;
import android.view.ViewParent;
import android.view.ViewRootImpl;
import android.view.ViewTreeObserver;
import android.view.WindowManager;
import android.view.accessibility.AccessibilityEvent;
import android.view.accessibility.AccessibilityManager;
import android.view.accessibility.AccessibilityNodeInfo;
import android.view.animation.AnimationUtils;
import android.view.inputmethod.BaseInputConnection;
import android.view.inputmethod.CompletionInfo;
import android.view.inputmethod.CorrectionInfo;
import android.view.inputmethod.EditorInfo;
import android.view.inputmethod.ExtractedText;
import android.view.inputmethod.ExtractedTextRequest;
import android.view.inputmethod.InputConnection;
import android.view.inputmethod.InputMethodManager;
import android.view.textservice.SpellCheckerSubtype;
import android.view.textservice.TextServicesManager;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.RemoteViews.RemoteView;
import com.android.internal.util.FastMath;
import com.android.internal.widget.EditableInputConnection;
import org.xmlpull.v1.XmlPullParserException;
import java.io.IOException;
import java.lang.ref.WeakReference;
import java.text.BreakIterator;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Comparator;
import java.util.HashMap;
import java.util.Locale;
/**
* Displays text to the user and optionally allows them to edit it. A TextView
* is a complete text editor, however the basic class is configured to not
* allow editing; see {@link EditText} for a subclass that configures the text
* view for editing.
*
* <p>
* <b>XML attributes</b>
* <p>
* See {@link android.R.styleable#TextView TextView Attributes},
* {@link android.R.styleable#View View Attributes}
*
* @attr ref android.R.styleable#TextView_text
* @attr ref android.R.styleable#TextView_bufferType
* @attr ref android.R.styleable#TextView_hint
* @attr ref android.R.styleable#TextView_textColor
* @attr ref android.R.styleable#TextView_textColorHighlight
* @attr ref android.R.styleable#TextView_textColorHint
* @attr ref android.R.styleable#TextView_textAppearance
* @attr ref android.R.styleable#TextView_textColorLink
* @attr ref android.R.styleable#TextView_textSize
* @attr ref android.R.styleable#TextView_textScaleX
* @attr ref android.R.styleable#TextView_typeface
* @attr ref android.R.styleable#TextView_textStyle
* @attr ref android.R.styleable#TextView_cursorVisible
* @attr ref android.R.styleable#TextView_maxLines
* @attr ref android.R.styleable#TextView_maxHeight
* @attr ref android.R.styleable#TextView_lines
* @attr ref android.R.styleable#TextView_height
* @attr ref android.R.styleable#TextView_minLines
* @attr ref android.R.styleable#TextView_minHeight
* @attr ref android.R.styleable#TextView_maxEms
* @attr ref android.R.styleable#TextView_maxWidth
* @attr ref android.R.styleable#TextView_ems
* @attr ref android.R.styleable#TextView_width
* @attr ref android.R.styleable#TextView_minEms
* @attr ref android.R.styleable#TextView_minWidth
* @attr ref android.R.styleable#TextView_gravity
* @attr ref android.R.styleable#TextView_scrollHorizontally
* @attr ref android.R.styleable#TextView_password
* @attr ref android.R.styleable#TextView_singleLine
* @attr ref android.R.styleable#TextView_selectAllOnFocus
* @attr ref android.R.styleable#TextView_includeFontPadding
* @attr ref android.R.styleable#TextView_maxLength
* @attr ref android.R.styleable#TextView_shadowColor
* @attr ref android.R.styleable#TextView_shadowDx
* @attr ref android.R.styleable#TextView_shadowDy
* @attr ref android.R.styleable#TextView_shadowRadius
* @attr ref android.R.styleable#TextView_autoLink
* @attr ref android.R.styleable#TextView_linksClickable
* @attr ref android.R.styleable#TextView_numeric
* @attr ref android.R.styleable#TextView_digits
* @attr ref android.R.styleable#TextView_phoneNumber
* @attr ref android.R.styleable#TextView_inputMethod
* @attr ref android.R.styleable#TextView_capitalize
* @attr ref android.R.styleable#TextView_autoText
* @attr ref android.R.styleable#TextView_editable
* @attr ref android.R.styleable#TextView_freezesText
* @attr ref android.R.styleable#TextView_ellipsize
* @attr ref android.R.styleable#TextView_drawableTop
* @attr ref android.R.styleable#TextView_drawableBottom
* @attr ref android.R.styleable#TextView_drawableRight
* @attr ref android.R.styleable#TextView_drawableLeft
* @attr ref android.R.styleable#TextView_drawablePadding
* @attr ref android.R.styleable#TextView_lineSpacingExtra
* @attr ref android.R.styleable#TextView_lineSpacingMultiplier
* @attr ref android.R.styleable#TextView_marqueeRepeatLimit
* @attr ref android.R.styleable#TextView_inputType
* @attr ref android.R.styleable#TextView_imeOptions
* @attr ref android.R.styleable#TextView_privateImeOptions
* @attr ref android.R.styleable#TextView_imeActionLabel
* @attr ref android.R.styleable#TextView_imeActionId
* @attr ref android.R.styleable#TextView_editorExtras
*/
@RemoteView
public class TextView extends View implements ViewTreeObserver.OnPreDrawListener {
static final String LOG_TAG = "TextView";
static final boolean DEBUG_EXTRACT = false;
private static final int PRIORITY = 100;
private int mCurrentAlpha = 255;
final int[] mTempCoords = new int[2];
Rect mTempRect;
private ColorStateList mTextColor;
private int mCurTextColor;
private ColorStateList mHintTextColor;
private ColorStateList mLinkTextColor;
private int mCurHintTextColor;
private boolean mFreezesText;
private boolean mFrozenWithFocus;
private boolean mTemporaryDetach;
private boolean mDispatchTemporaryDetach;
private boolean mDiscardNextActionUp = false;
private boolean mIgnoreActionUpEvent = false;
private Editable.Factory mEditableFactory = Editable.Factory.getInstance();
private Spannable.Factory mSpannableFactory = Spannable.Factory.getInstance();
private float mShadowRadius, mShadowDx, mShadowDy;
private static final int PREDRAW_NOT_REGISTERED = 0;
private static final int PREDRAW_PENDING = 1;
private static final int PREDRAW_DONE = 2;
private int mPreDrawState = PREDRAW_NOT_REGISTERED;
private TextUtils.TruncateAt mEllipsize = null;
// Enum for the "typeface" XML parameter.
// TODO: How can we get this from the XML instead of hardcoding it here?
private static final int SANS = 1;
private static final int SERIF = 2;
private static final int MONOSPACE = 3;
// Bitfield for the "numeric" XML parameter.
// TODO: How can we get this from the XML instead of hardcoding it here?
private static final int SIGNED = 2;
private static final int DECIMAL = 4;
static class Drawables {
final Rect mCompoundRect = new Rect();
Drawable mDrawableTop, mDrawableBottom, mDrawableLeft, mDrawableRight,
mDrawableStart, mDrawableEnd;
int mDrawableSizeTop, mDrawableSizeBottom, mDrawableSizeLeft, mDrawableSizeRight,
mDrawableSizeStart, mDrawableSizeEnd;
int mDrawableWidthTop, mDrawableWidthBottom, mDrawableHeightLeft, mDrawableHeightRight,
mDrawableHeightStart, mDrawableHeightEnd;
int mDrawablePadding;
}
private Drawables mDrawables;
private CharSequence mError;
private boolean mErrorWasChanged;
private ErrorPopup mPopup;
/**
* This flag is set if the TextView tries to display an error before it
* is attached to the window (so its position is still unknown).
* It causes the error to be shown later, when onAttachedToWindow()
* is called.
*/
private boolean mShowErrorAfterAttach;
private CharWrapper mCharWrapper = null;
private boolean mSelectionMoved = false;
private boolean mTouchFocusSelected = false;
private Marquee mMarquee;
private boolean mRestartMarquee;
private int mMarqueeRepeatLimit = 3;
static class InputContentType {
int imeOptions = EditorInfo.IME_NULL;
String privateImeOptions;
CharSequence imeActionLabel;
int imeActionId;
Bundle extras;
OnEditorActionListener onEditorActionListener;
boolean enterDown;
}
InputContentType mInputContentType;
static class InputMethodState {
Rect mCursorRectInWindow = new Rect();
RectF mTmpRectF = new RectF();
float[] mTmpOffset = new float[2];
ExtractedTextRequest mExtracting;
final ExtractedText mTmpExtracted = new ExtractedText();
int mBatchEditNesting;
boolean mCursorChanged;
boolean mSelectionModeChanged;
boolean mContentChanged;
int mChangedStart, mChangedEnd, mChangedDelta;
}
InputMethodState mInputMethodState;
private int mTextSelectHandleLeftRes;
private int mTextSelectHandleRightRes;
private int mTextSelectHandleRes;
private int mTextEditSuggestionItemLayout;
private SuggestionsPopupWindow mSuggestionsPopupWindow;
private SuggestionRangeSpan mSuggestionRangeSpan;
private int mCursorDrawableRes;
private final Drawable[] mCursorDrawable = new Drawable[2];
private int mCursorCount; // Actual current number of used mCursorDrawable: 0, 1 or 2 (split)
private Drawable mSelectHandleLeft;
private Drawable mSelectHandleRight;
private Drawable mSelectHandleCenter;
// Global listener that detects changes in the global position of the TextView
private PositionListener mPositionListener;
private float mLastDownPositionX, mLastDownPositionY;
private Callback mCustomSelectionActionModeCallback;
private final int mSquaredTouchSlopDistance;
// Set when this TextView gained focus with some text selected. Will start selection mode.
private boolean mCreatedWithASelection = false;
private WordIterator mWordIterator;
private SpellChecker mSpellChecker;
private boolean mSoftInputShownOnFocus = true;
// The alignment to pass to Layout, or null if not resolved.
private Layout.Alignment mLayoutAlignment;
// The default value for mTextAlign.
private TextAlign mTextAlign = TextAlign.INHERIT;
private static enum TextAlign {
INHERIT, GRAVITY, TEXT_START, TEXT_END, CENTER, VIEW_START, VIEW_END;
}
private boolean mResolvedDrawables = false;
/**
* On some devices the fading edges add a performance penalty if used
* extensively in the same layout. This mode indicates how the marquee
* is currently being shown, if applicable. (mEllipsize will == MARQUEE)
*/
private int mMarqueeFadeMode = MARQUEE_FADE_NORMAL;
/**
* When mMarqueeFadeMode is not MARQUEE_FADE_NORMAL, this stores
* the layout that should be used when the mode switches.
*/
private Layout mSavedMarqueeModeLayout;
/**
* Draw marquee text with fading edges as usual
*/
private static final int MARQUEE_FADE_NORMAL = 0;
/**
* Draw marquee text as ellipsize end while inactive instead of with the fade.
* (Useful for devices where the fade can be expensive if overdone)
*/
private static final int MARQUEE_FADE_SWITCH_SHOW_ELLIPSIS = 1;
/**
* Draw marquee text with fading edges because it is currently active/animating.
*/
private static final int MARQUEE_FADE_SWITCH_SHOW_FADE = 2;
/*
* Kick-start the font cache for the zygote process (to pay the cost of
* initializing freetype for our default font only once).
*/
static {
Paint p = new Paint();
p.setAntiAlias(true);
// We don't care about the result, just the side-effect of measuring.
p.measureText("H");
}
/**
* Interface definition for a callback to be invoked when an action is
* performed on the editor.
*/
public interface OnEditorActionListener {
/**
* Called when an action is being performed.
*
* @param v The view that was clicked.
* @param actionId Identifier of the action. This will be either the
* identifier you supplied, or {@link EditorInfo#IME_NULL
* EditorInfo.IME_NULL} if being called due to the enter key
* being pressed.
* @param event If triggered by an enter key, this is the event;
* otherwise, this is null.
* @return Return true if you have consumed the action, else false.
*/
boolean onEditorAction(TextView v, int actionId, KeyEvent event);
}
public TextView(Context context) {
this(context, null);
}
public TextView(Context context,
AttributeSet attrs) {
this(context, attrs, com.android.internal.R.attr.textViewStyle);
}
@SuppressWarnings("deprecation")
public TextView(Context context,
AttributeSet attrs,
int defStyle) {
super(context, attrs, defStyle);
mText = "";
final Resources res = getResources();
final CompatibilityInfo compat = res.getCompatibilityInfo();
mTextPaint = new TextPaint(Paint.ANTI_ALIAS_FLAG);
mTextPaint.density = res.getDisplayMetrics().density;
mTextPaint.setCompatibilityScaling(compat.applicationScale);
// If we get the paint from the skin, we should set it to left, since
// the layout always wants it to be left.
// mTextPaint.setTextAlign(Paint.Align.LEFT);
mHighlightPaint = new Paint(Paint.ANTI_ALIAS_FLAG);
mHighlightPaint.setCompatibilityScaling(compat.applicationScale);
mMovement = getDefaultMovementMethod();
mTransformation = null;
int textColorHighlight = 0;
ColorStateList textColor = null;
ColorStateList textColorHint = null;
ColorStateList textColorLink = null;
int textSize = 15;
int typefaceIndex = -1;
int styleIndex = -1;
boolean allCaps = false;
final Resources.Theme theme = context.getTheme();
/*
* Look the appearance up without checking first if it exists because
* almost every TextView has one and it greatly simplifies the logic
* to be able to parse the appearance first and then let specific tags
* for this View override it.
*/
TypedArray a = theme.obtainStyledAttributes(
attrs, com.android.internal.R.styleable.TextViewAppearance, defStyle, 0);
TypedArray appearance = null;
int ap = a.getResourceId(
com.android.internal.R.styleable.TextViewAppearance_textAppearance, -1);
a.recycle();
if (ap != -1) {
appearance = theme.obtainStyledAttributes(
ap, com.android.internal.R.styleable.TextAppearance);
}
if (appearance != null) {
int n = appearance.getIndexCount();
for (int i = 0; i < n; i++) {
int attr = appearance.getIndex(i);
switch (attr) {
case com.android.internal.R.styleable.TextAppearance_textColorHighlight:
textColorHighlight = appearance.getColor(attr, textColorHighlight);
break;
case com.android.internal.R.styleable.TextAppearance_textColor:
textColor = appearance.getColorStateList(attr);
break;
case com.android.internal.R.styleable.TextAppearance_textColorHint:
textColorHint = appearance.getColorStateList(attr);
break;
case com.android.internal.R.styleable.TextAppearance_textColorLink:
textColorLink = appearance.getColorStateList(attr);
break;
case com.android.internal.R.styleable.TextAppearance_textSize:
textSize = appearance.getDimensionPixelSize(attr, textSize);
break;
case com.android.internal.R.styleable.TextAppearance_typeface:
typefaceIndex = appearance.getInt(attr, -1);
break;
case com.android.internal.R.styleable.TextAppearance_textStyle:
styleIndex = appearance.getInt(attr, -1);
break;
case com.android.internal.R.styleable.TextAppearance_textAllCaps:
allCaps = appearance.getBoolean(attr, false);
break;
}
}
appearance.recycle();
}
boolean editable = getDefaultEditable();
CharSequence inputMethod = null;
int numeric = 0;
CharSequence digits = null;
boolean phone = false;
boolean autotext = false;
int autocap = -1;
int buffertype = 0;
boolean selectallonfocus = false;
Drawable drawableLeft = null, drawableTop = null, drawableRight = null,
drawableBottom = null, drawableStart = null, drawableEnd = null;
int drawablePadding = 0;
int ellipsize = -1;
boolean singleLine = false;
int maxlength = -1;
CharSequence text = "";
CharSequence hint = null;
int shadowcolor = 0;
float dx = 0, dy = 0, r = 0;
boolean password = false;
int inputType = EditorInfo.TYPE_NULL;
a = theme.obtainStyledAttributes(
attrs, com.android.internal.R.styleable.TextView, defStyle, 0);
int n = a.getIndexCount();
for (int i = 0; i < n; i++) {
int attr = a.getIndex(i);
switch (attr) {
case com.android.internal.R.styleable.TextView_editable:
editable = a.getBoolean(attr, editable);
break;
case com.android.internal.R.styleable.TextView_inputMethod:
inputMethod = a.getText(attr);
break;
case com.android.internal.R.styleable.TextView_numeric:
numeric = a.getInt(attr, numeric);
break;
case com.android.internal.R.styleable.TextView_digits:
digits = a.getText(attr);
break;
case com.android.internal.R.styleable.TextView_phoneNumber:
phone = a.getBoolean(attr, phone);
break;
case com.android.internal.R.styleable.TextView_autoText:
autotext = a.getBoolean(attr, autotext);
break;
case com.android.internal.R.styleable.TextView_capitalize:
autocap = a.getInt(attr, autocap);
break;
case com.android.internal.R.styleable.TextView_bufferType:
buffertype = a.getInt(attr, buffertype);
break;
case com.android.internal.R.styleable.TextView_selectAllOnFocus:
selectallonfocus = a.getBoolean(attr, selectallonfocus);
break;
case com.android.internal.R.styleable.TextView_autoLink:
mAutoLinkMask = a.getInt(attr, 0);
break;
case com.android.internal.R.styleable.TextView_linksClickable:
mLinksClickable = a.getBoolean(attr, true);
break;
// TODO uncomment when this attribute is made public in the next release
// also add TextView_showSoftInputOnFocus to the list of attributes above
// case com.android.internal.R.styleable.TextView_showSoftInputOnFocus:
// setShowSoftInputOnFocus(a.getBoolean(attr, true));
// break;
case com.android.internal.R.styleable.TextView_drawableLeft:
drawableLeft = a.getDrawable(attr);
break;
case com.android.internal.R.styleable.TextView_drawableTop:
drawableTop = a.getDrawable(attr);
break;
case com.android.internal.R.styleable.TextView_drawableRight:
drawableRight = a.getDrawable(attr);
break;
case com.android.internal.R.styleable.TextView_drawableBottom:
drawableBottom = a.getDrawable(attr);
break;
case com.android.internal.R.styleable.TextView_drawableStart:
drawableStart = a.getDrawable(attr);
break;
case com.android.internal.R.styleable.TextView_drawableEnd:
drawableEnd = a.getDrawable(attr);
break;
case com.android.internal.R.styleable.TextView_drawablePadding:
drawablePadding = a.getDimensionPixelSize(attr, drawablePadding);
break;
case com.android.internal.R.styleable.TextView_maxLines:
setMaxLines(a.getInt(attr, -1));
break;
case com.android.internal.R.styleable.TextView_maxHeight:
setMaxHeight(a.getDimensionPixelSize(attr, -1));
break;
case com.android.internal.R.styleable.TextView_lines:
setLines(a.getInt(attr, -1));
break;
case com.android.internal.R.styleable.TextView_height:
setHeight(a.getDimensionPixelSize(attr, -1));
break;
case com.android.internal.R.styleable.TextView_minLines:
setMinLines(a.getInt(attr, -1));
break;
case com.android.internal.R.styleable.TextView_minHeight:
setMinHeight(a.getDimensionPixelSize(attr, -1));
break;
case com.android.internal.R.styleable.TextView_maxEms:
setMaxEms(a.getInt(attr, -1));
break;
case com.android.internal.R.styleable.TextView_maxWidth:
setMaxWidth(a.getDimensionPixelSize(attr, -1));
break;
case com.android.internal.R.styleable.TextView_ems:
setEms(a.getInt(attr, -1));
break;
case com.android.internal.R.styleable.TextView_width:
setWidth(a.getDimensionPixelSize(attr, -1));
break;
case com.android.internal.R.styleable.TextView_minEms:
setMinEms(a.getInt(attr, -1));
break;
case com.android.internal.R.styleable.TextView_minWidth:
setMinWidth(a.getDimensionPixelSize(attr, -1));
break;
case com.android.internal.R.styleable.TextView_gravity:
setGravity(a.getInt(attr, -1));
break;
case com.android.internal.R.styleable.TextView_hint:
hint = a.getText(attr);
break;
case com.android.internal.R.styleable.TextView_text:
text = a.getText(attr);
break;
case com.android.internal.R.styleable.TextView_scrollHorizontally:
if (a.getBoolean(attr, false)) {
setHorizontallyScrolling(true);
}
break;
case com.android.internal.R.styleable.TextView_singleLine:
singleLine = a.getBoolean(attr, singleLine);
break;
case com.android.internal.R.styleable.TextView_ellipsize:
ellipsize = a.getInt(attr, ellipsize);
break;
case com.android.internal.R.styleable.TextView_marqueeRepeatLimit:
setMarqueeRepeatLimit(a.getInt(attr, mMarqueeRepeatLimit));
break;
case com.android.internal.R.styleable.TextView_includeFontPadding:
if (!a.getBoolean(attr, true)) {
setIncludeFontPadding(false);
}
break;
case com.android.internal.R.styleable.TextView_cursorVisible:
if (!a.getBoolean(attr, true)) {
setCursorVisible(false);
}
break;
case com.android.internal.R.styleable.TextView_maxLength:
maxlength = a.getInt(attr, -1);
break;
case com.android.internal.R.styleable.TextView_textScaleX:
setTextScaleX(a.getFloat(attr, 1.0f));
break;
case com.android.internal.R.styleable.TextView_freezesText:
mFreezesText = a.getBoolean(attr, false);
break;
case com.android.internal.R.styleable.TextView_shadowColor:
shadowcolor = a.getInt(attr, 0);
break;
case com.android.internal.R.styleable.TextView_shadowDx:
dx = a.getFloat(attr, 0);
break;
case com.android.internal.R.styleable.TextView_shadowDy:
dy = a.getFloat(attr, 0);
break;
case com.android.internal.R.styleable.TextView_shadowRadius:
r = a.getFloat(attr, 0);
break;
case com.android.internal.R.styleable.TextView_enabled:
setEnabled(a.getBoolean(attr, isEnabled()));
break;
case com.android.internal.R.styleable.TextView_textColorHighlight:
textColorHighlight = a.getColor(attr, textColorHighlight);
break;
case com.android.internal.R.styleable.TextView_textColor:
textColor = a.getColorStateList(attr);
break;
case com.android.internal.R.styleable.TextView_textColorHint:
textColorHint = a.getColorStateList(attr);
break;
case com.android.internal.R.styleable.TextView_textColorLink:
textColorLink = a.getColorStateList(attr);
break;
case com.android.internal.R.styleable.TextView_textSize:
textSize = a.getDimensionPixelSize(attr, textSize);
break;
case com.android.internal.R.styleable.TextView_typeface:
typefaceIndex = a.getInt(attr, typefaceIndex);
break;
case com.android.internal.R.styleable.TextView_textStyle:
styleIndex = a.getInt(attr, styleIndex);
break;
case com.android.internal.R.styleable.TextView_password:
password = a.getBoolean(attr, password);
break;
case com.android.internal.R.styleable.TextView_lineSpacingExtra:
mSpacingAdd = a.getDimensionPixelSize(attr, (int) mSpacingAdd);
break;
case com.android.internal.R.styleable.TextView_lineSpacingMultiplier:
mSpacingMult = a.getFloat(attr, mSpacingMult);
break;
case com.android.internal.R.styleable.TextView_inputType:
inputType = a.getInt(attr, mInputType);
break;
case com.android.internal.R.styleable.TextView_imeOptions:
if (mInputContentType == null) {
mInputContentType = new InputContentType();
}
mInputContentType.imeOptions = a.getInt(attr,
mInputContentType.imeOptions);
break;
case com.android.internal.R.styleable.TextView_imeActionLabel:
if (mInputContentType == null) {
mInputContentType = new InputContentType();
}
mInputContentType.imeActionLabel = a.getText(attr);
break;
case com.android.internal.R.styleable.TextView_imeActionId:
if (mInputContentType == null) {
mInputContentType = new InputContentType();
}
mInputContentType.imeActionId = a.getInt(attr,
mInputContentType.imeActionId);
break;
case com.android.internal.R.styleable.TextView_privateImeOptions:
setPrivateImeOptions(a.getString(attr));
break;
case com.android.internal.R.styleable.TextView_editorExtras:
try {
setInputExtras(a.getResourceId(attr, 0));
} catch (XmlPullParserException e) {
Log.w(LOG_TAG, "Failure reading input extras", e);
} catch (IOException e) {
Log.w(LOG_TAG, "Failure reading input extras", e);
}
break;
case com.android.internal.R.styleable.TextView_textCursorDrawable:
mCursorDrawableRes = a.getResourceId(attr, 0);
break;
case com.android.internal.R.styleable.TextView_textSelectHandleLeft:
mTextSelectHandleLeftRes = a.getResourceId(attr, 0);
break;
case com.android.internal.R.styleable.TextView_textSelectHandleRight:
mTextSelectHandleRightRes = a.getResourceId(attr, 0);
break;
case com.android.internal.R.styleable.TextView_textSelectHandle:
mTextSelectHandleRes = a.getResourceId(attr, 0);
break;
case com.android.internal.R.styleable.TextView_textEditSuggestionItemLayout:
mTextEditSuggestionItemLayout = a.getResourceId(attr, 0);
break;
case com.android.internal.R.styleable.TextView_textIsSelectable:
mTextIsSelectable = a.getBoolean(attr, false);
break;
case com.android.internal.R.styleable.TextView_textAllCaps:
allCaps = a.getBoolean(attr, false);
break;
}
}
a.recycle();
BufferType bufferType = BufferType.EDITABLE;
final int variation =
inputType & (EditorInfo.TYPE_MASK_CLASS | EditorInfo.TYPE_MASK_VARIATION);
final boolean passwordInputType = variation
== (EditorInfo.TYPE_CLASS_TEXT | EditorInfo.TYPE_TEXT_VARIATION_PASSWORD);
final boolean webPasswordInputType = variation
== (EditorInfo.TYPE_CLASS_TEXT | EditorInfo.TYPE_TEXT_VARIATION_WEB_PASSWORD);
final boolean numberPasswordInputType = variation
== (EditorInfo.TYPE_CLASS_NUMBER | EditorInfo.TYPE_NUMBER_VARIATION_PASSWORD);
if (inputMethod != null) {
Class<?> c;
try {
c = Class.forName(inputMethod.toString());
} catch (ClassNotFoundException ex) {
throw new RuntimeException(ex);
}
try {
mInput = (KeyListener) c.newInstance();
} catch (InstantiationException ex) {
throw new RuntimeException(ex);
} catch (IllegalAccessException ex) {
throw new RuntimeException(ex);
}
try {
mInputType = inputType != EditorInfo.TYPE_NULL
? inputType
: mInput.getInputType();
} catch (IncompatibleClassChangeError e) {
mInputType = EditorInfo.TYPE_CLASS_TEXT;
}
} else if (digits != null) {
mInput = DigitsKeyListener.getInstance(digits.toString());
// If no input type was specified, we will default to generic
// text, since we can't tell the IME about the set of digits
// that was selected.
mInputType = inputType != EditorInfo.TYPE_NULL
? inputType : EditorInfo.TYPE_CLASS_TEXT;
} else if (inputType != EditorInfo.TYPE_NULL) {
setInputType(inputType, true);
// If set, the input type overrides what was set using the deprecated singleLine flag.
singleLine = !isMultilineInputType(inputType);
} else if (phone) {
mInput = DialerKeyListener.getInstance();
mInputType = inputType = EditorInfo.TYPE_CLASS_PHONE;
} else if (numeric != 0) {
mInput = DigitsKeyListener.getInstance((numeric & SIGNED) != 0,
(numeric & DECIMAL) != 0);
inputType = EditorInfo.TYPE_CLASS_NUMBER;
if ((numeric & SIGNED) != 0) {
inputType |= EditorInfo.TYPE_NUMBER_FLAG_SIGNED;
}
if ((numeric & DECIMAL) != 0) {
inputType |= EditorInfo.TYPE_NUMBER_FLAG_DECIMAL;
}
mInputType = inputType;
} else if (autotext || autocap != -1) {
TextKeyListener.Capitalize cap;
inputType = EditorInfo.TYPE_CLASS_TEXT;
switch (autocap) {
case 1:
cap = TextKeyListener.Capitalize.SENTENCES;
inputType |= EditorInfo.TYPE_TEXT_FLAG_CAP_SENTENCES;
break;
case 2:
cap = TextKeyListener.Capitalize.WORDS;
inputType |= EditorInfo.TYPE_TEXT_FLAG_CAP_WORDS;
break;
case 3:
cap = TextKeyListener.Capitalize.CHARACTERS;
inputType |= EditorInfo.TYPE_TEXT_FLAG_CAP_CHARACTERS;
break;
default:
cap = TextKeyListener.Capitalize.NONE;
break;
}
mInput = TextKeyListener.getInstance(autotext, cap);
mInputType = inputType;
} else if (mTextIsSelectable) {
// Prevent text changes from keyboard.
mInputType = EditorInfo.TYPE_NULL;
mInput = null;
bufferType = BufferType.SPANNABLE;
// Required to request focus while in touch mode.
setFocusableInTouchMode(true);
// So that selection can be changed using arrow keys and touch is handled.
setMovementMethod(ArrowKeyMovementMethod.getInstance());
} else if (editable) {
mInput = TextKeyListener.getInstance();
mInputType = EditorInfo.TYPE_CLASS_TEXT;
} else {
mInput = null;
switch (buffertype) {
case 0:
bufferType = BufferType.NORMAL;
break;
case 1:
bufferType = BufferType.SPANNABLE;
break;
case 2:
bufferType = BufferType.EDITABLE;
break;
}
}
// mInputType has been set from inputType, possibly modified by mInputMethod.
// Specialize mInputType to [web]password if we have a text class and the original input
// type was a password.
if ((mInputType & EditorInfo.TYPE_MASK_CLASS) == EditorInfo.TYPE_CLASS_TEXT) {
if (password || passwordInputType) {
mInputType = (mInputType & ~(EditorInfo.TYPE_MASK_VARIATION))
| EditorInfo.TYPE_TEXT_VARIATION_PASSWORD;
}
if (webPasswordInputType) {
mInputType = (mInputType & ~(EditorInfo.TYPE_MASK_VARIATION))
| EditorInfo.TYPE_TEXT_VARIATION_WEB_PASSWORD;
}
} else if ((mInputType & EditorInfo.TYPE_MASK_CLASS) == EditorInfo.TYPE_CLASS_NUMBER) {
if (numberPasswordInputType) {
mInputType = (mInputType & ~(EditorInfo.TYPE_MASK_VARIATION))
| EditorInfo.TYPE_NUMBER_VARIATION_PASSWORD;
}
}
if (selectallonfocus) {
mSelectAllOnFocus = true;
if (bufferType == BufferType.NORMAL)
bufferType = BufferType.SPANNABLE;
}
setCompoundDrawablesWithIntrinsicBounds(
drawableLeft, drawableTop, drawableRight, drawableBottom);
setRelativeDrawablesIfNeeded(drawableStart, drawableEnd);
setCompoundDrawablePadding(drawablePadding);
// Same as setSingleLine(), but make sure the transformation method and the maximum number
// of lines of height are unchanged for multi-line TextViews.
setInputTypeSingleLine(singleLine);
applySingleLine(singleLine, singleLine, singleLine);
if (singleLine && mInput == null && ellipsize < 0) {
ellipsize = 3; // END
}
switch (ellipsize) {
case 1:
setEllipsize(TextUtils.TruncateAt.START);
break;
case 2:
setEllipsize(TextUtils.TruncateAt.MIDDLE);
break;
case 3:
setEllipsize(TextUtils.TruncateAt.END);
break;
case 4:
if (ViewConfiguration.get(context).isFadingMarqueeEnabled()) {
setHorizontalFadingEdgeEnabled(true);
mMarqueeFadeMode = MARQUEE_FADE_NORMAL;
} else {
setHorizontalFadingEdgeEnabled(false);
mMarqueeFadeMode = MARQUEE_FADE_SWITCH_SHOW_ELLIPSIS;
}
setEllipsize(TextUtils.TruncateAt.MARQUEE);
break;
}
setTextColor(textColor != null ? textColor : ColorStateList.valueOf(0xFF000000));
setHintTextColor(textColorHint);
setLinkTextColor(textColorLink);
if (textColorHighlight != 0) {
setHighlightColor(textColorHighlight);
}
setRawTextSize(textSize);
if (allCaps) {
setTransformationMethod(new AllCapsTransformationMethod(getContext()));
}
if (password || passwordInputType || webPasswordInputType || numberPasswordInputType) {
setTransformationMethod(PasswordTransformationMethod.getInstance());
typefaceIndex = MONOSPACE;
} else if ((mInputType & (EditorInfo.TYPE_MASK_CLASS | EditorInfo.TYPE_MASK_VARIATION))
== (EditorInfo.TYPE_CLASS_TEXT | EditorInfo.TYPE_TEXT_VARIATION_PASSWORD)) {
typefaceIndex = MONOSPACE;
}
setTypefaceByIndex(typefaceIndex, styleIndex);
if (shadowcolor != 0) {
setShadowLayer(r, dx, dy, shadowcolor);
}
if (maxlength >= 0) {
setFilters(new InputFilter[] { new InputFilter.LengthFilter(maxlength) });
} else {
setFilters(NO_FILTERS);
}
setText(text, bufferType);
if (hint != null) setHint(hint);
/*
* Views are not normally focusable unless specified to be.
* However, TextViews that have input or movement methods *are*
* focusable by default.
*/
a = context.obtainStyledAttributes(attrs,
com.android.internal.R.styleable.View,
defStyle, 0);
boolean focusable = mMovement != null || mInput != null;
boolean clickable = focusable;
boolean longClickable = focusable;
n = a.getIndexCount();
for (int i = 0; i < n; i++) {
int attr = a.getIndex(i);
switch (attr) {
case com.android.internal.R.styleable.View_focusable:
focusable = a.getBoolean(attr, focusable);
break;
case com.android.internal.R.styleable.View_clickable:
clickable = a.getBoolean(attr, clickable);
break;
case com.android.internal.R.styleable.View_longClickable:
longClickable = a.getBoolean(attr, longClickable);
break;
}
}
a.recycle();
setFocusable(focusable);
setClickable(clickable);
setLongClickable(longClickable);
prepareCursorControllers();
final ViewConfiguration viewConfiguration = ViewConfiguration.get(context);
final int touchSlop = viewConfiguration.getScaledTouchSlop();
mSquaredTouchSlopDistance = touchSlop * touchSlop;
}
private void setTypefaceByIndex(int typefaceIndex, int styleIndex) {
Typeface tf = null;
switch (typefaceIndex) {
case SANS:
tf = Typeface.SANS_SERIF;
break;
case SERIF:
tf = Typeface.SERIF;
break;
case MONOSPACE:
tf = Typeface.MONOSPACE;
break;
}
setTypeface(tf, styleIndex);
}
private void setRelativeDrawablesIfNeeded(Drawable start, Drawable end) {
boolean hasRelativeDrawables = (start != null) || (end != null);
if (hasRelativeDrawables) {
Drawables dr = mDrawables;
if (dr == null) {
mDrawables = dr = new Drawables();
}
final Rect compoundRect = dr.mCompoundRect;
int[] state = getDrawableState();
if (start != null) {
start.setBounds(0, 0, start.getIntrinsicWidth(), start.getIntrinsicHeight());
start.setState(state);
start.copyBounds(compoundRect);
start.setCallback(this);
dr.mDrawableStart = start;
dr.mDrawableSizeStart = compoundRect.width();
dr.mDrawableHeightStart = compoundRect.height();
} else {
dr.mDrawableSizeStart = dr.mDrawableHeightStart = 0;
}
if (end != null) {
end.setBounds(0, 0, end.getIntrinsicWidth(), end.getIntrinsicHeight());
end.setState(state);
end.copyBounds(compoundRect);
end.setCallback(this);
dr.mDrawableEnd = end;
dr.mDrawableSizeEnd = compoundRect.width();
dr.mDrawableHeightEnd = compoundRect.height();
} else {
dr.mDrawableSizeEnd = dr.mDrawableHeightEnd = 0;
}
}
}
@Override
public void setEnabled(boolean enabled) {
if (enabled == isEnabled()) {
return;
}
if (!enabled) {
// Hide the soft input if the currently active TextView is disabled
InputMethodManager imm = InputMethodManager.peekInstance();
if (imm != null && imm.isActive(this)) {
imm.hideSoftInputFromWindow(getWindowToken(), 0);
}
}
super.setEnabled(enabled);
prepareCursorControllers();
if (enabled) {
// Make sure IME is updated with current editor info.
InputMethodManager imm = InputMethodManager.peekInstance();
if (imm != null) imm.restartInput(this);
}
// start or stop the cursor blinking as appropriate
makeBlink();
}
/**
* Sets the typeface and style in which the text should be displayed,
* and turns on the fake bold and italic bits in the Paint if the
* Typeface that you provided does not have all the bits in the
* style that you specified.
*
* @attr ref android.R.styleable#TextView_typeface
* @attr ref android.R.styleable#TextView_textStyle
*/
public void setTypeface(Typeface tf, int style) {
if (style > 0) {
if (tf == null) {
tf = Typeface.defaultFromStyle(style);
} else {
tf = Typeface.create(tf, style);
}
setTypeface(tf);
// now compute what (if any) algorithmic styling is needed
int typefaceStyle = tf != null ? tf.getStyle() : 0;
int need = style & ~typefaceStyle;
mTextPaint.setFakeBoldText((need & Typeface.BOLD) != 0);
mTextPaint.setTextSkewX((need & Typeface.ITALIC) != 0 ? -0.25f : 0);
} else {
mTextPaint.setFakeBoldText(false);
mTextPaint.setTextSkewX(0);
setTypeface(tf);
}
}
/**
* Subclasses override this to specify that they have a KeyListener
* by default even if not specifically called for in the XML options.
*/
protected boolean getDefaultEditable() {
return false;
}
/**
* Subclasses override this to specify a default movement method.
*/
protected MovementMethod getDefaultMovementMethod() {
return null;
}
/**
* Return the text the TextView is displaying. If setText() was called with
* an argument of BufferType.SPANNABLE or BufferType.EDITABLE, you can cast
* the return value from this method to Spannable or Editable, respectively.
*
* Note: The content of the return value should not be modified. If you want
* a modifiable one, you should make your own copy first.
*/
@ViewDebug.CapturedViewProperty
public CharSequence getText() {
return mText;
}
/**
* Returns the length, in characters, of the text managed by this TextView
*/
public int length() {
return mText.length();
}
/**
* Return the text the TextView is displaying as an Editable object. If
* the text is not editable, null is returned.
*
* @see #getText
*/
public Editable getEditableText() {
return (mText instanceof Editable) ? (Editable)mText : null;
}
/**
* @return the height of one standard line in pixels. Note that markup
* within the text can cause individual lines to be taller or shorter
* than this height, and the layout may contain additional first-
* or last-line padding.
*/
public int getLineHeight() {
return FastMath.round(mTextPaint.getFontMetricsInt(null) * mSpacingMult + mSpacingAdd);
}
/**
* @return the Layout that is currently being used to display the text.
* This can be null if the text or width has recently changes.
*/
public final Layout getLayout() {
return mLayout;
}
/**
* @return the current key listener for this TextView.
* This will frequently be null for non-EditText TextViews.
*/
public final KeyListener getKeyListener() {
return mInput;
}
/**
* Sets the key listener to be used with this TextView. This can be null
* to disallow user input. Note that this method has significant and
* subtle interactions with soft keyboards and other input method:
* see {@link KeyListener#getInputType() KeyListener.getContentType()}
* for important details. Calling this method will replace the current
* content type of the text view with the content type returned by the
* key listener.
* <p>
* Be warned that if you want a TextView with a key listener or movement
* method not to be focusable, or if you want a TextView without a
* key listener or movement method to be focusable, you must call
* {@link #setFocusable} again after calling this to get the focusability
* back the way you want it.
*
* @attr ref android.R.styleable#TextView_numeric
* @attr ref android.R.styleable#TextView_digits
* @attr ref android.R.styleable#TextView_phoneNumber
* @attr ref android.R.styleable#TextView_inputMethod
* @attr ref android.R.styleable#TextView_capitalize
* @attr ref android.R.styleable#TextView_autoText
*/
public void setKeyListener(KeyListener input) {
setKeyListenerOnly(input);
fixFocusableAndClickableSettings();
if (input != null) {
try {
mInputType = mInput.getInputType();
} catch (IncompatibleClassChangeError e) {
mInputType = EditorInfo.TYPE_CLASS_TEXT;
}
// Change inputType, without affecting transformation.
// No need to applySingleLine since mSingleLine is unchanged.
setInputTypeSingleLine(mSingleLine);
} else {
mInputType = EditorInfo.TYPE_NULL;
}
InputMethodManager imm = InputMethodManager.peekInstance();
if (imm != null) imm.restartInput(this);
}
private void setKeyListenerOnly(KeyListener input) {
mInput = input;
if (mInput != null && !(mText instanceof Editable))
setText(mText);
setFilters((Editable) mText, mFilters);
}
/**
* @return the movement method being used for this TextView.
* This will frequently be null for non-EditText TextViews.
*/
public final MovementMethod getMovementMethod() {
return mMovement;
}
/**
* Sets the movement method (arrow key handler) to be used for
* this TextView. This can be null to disallow using the arrow keys
* to move the cursor or scroll the view.
* <p>
* Be warned that if you want a TextView with a key listener or movement
* method not to be focusable, or if you want a TextView without a
* key listener or movement method to be focusable, you must call
* {@link #setFocusable} again after calling this to get the focusability
* back the way you want it.
*/
public final void setMovementMethod(MovementMethod movement) {
mMovement = movement;
if (mMovement != null && !(mText instanceof Spannable))
setText(mText);
fixFocusableAndClickableSettings();
// SelectionModifierCursorController depends on textCanBeSelected, which depends on mMovement
prepareCursorControllers();
}
private void fixFocusableAndClickableSettings() {
if ((mMovement != null) || mInput != null) {
setFocusable(true);
setClickable(true);
setLongClickable(true);
} else {
setFocusable(false);
setClickable(false);
setLongClickable(false);
}
}
/**
* @return the current transformation method for this TextView.
* This will frequently be null except for single-line and password
* fields.
*/
public final TransformationMethod getTransformationMethod() {
return mTransformation;
}
/**
* Sets the transformation that is applied to the text that this
* TextView is displaying.
*
* @attr ref android.R.styleable#TextView_password
* @attr ref android.R.styleable#TextView_singleLine
*/
public final void setTransformationMethod(TransformationMethod method) {
if (method == mTransformation) {
// Avoid the setText() below if the transformation is
// the same.
return;
}
if (mTransformation != null) {
if (mText instanceof Spannable) {
((Spannable) mText).removeSpan(mTransformation);
}
}
mTransformation = method;
if (method instanceof TransformationMethod2) {
TransformationMethod2 method2 = (TransformationMethod2) method;
mAllowTransformationLengthChange = !mTextIsSelectable && !(mText instanceof Editable);
method2.setLengthChangesAllowed(mAllowTransformationLengthChange);
} else {
mAllowTransformationLengthChange = false;
}
setText(mText);
}
/**
* Returns the top padding of the view, plus space for the top
* Drawable if any.
*/
public int getCompoundPaddingTop() {
final Drawables dr = mDrawables;
if (dr == null || dr.mDrawableTop == null) {
return mPaddingTop;
} else {
return mPaddingTop + dr.mDrawablePadding + dr.mDrawableSizeTop;
}
}
/**
* Returns the bottom padding of the view, plus space for the bottom
* Drawable if any.
*/
public int getCompoundPaddingBottom() {
final Drawables dr = mDrawables;
if (dr == null || dr.mDrawableBottom == null) {
return mPaddingBottom;
} else {
return mPaddingBottom + dr.mDrawablePadding + dr.mDrawableSizeBottom;
}
}
/**
* Returns the left padding of the view, plus space for the left
* Drawable if any.
*/
public int getCompoundPaddingLeft() {
final Drawables dr = mDrawables;
if (dr == null || dr.mDrawableLeft == null) {
return mPaddingLeft;
} else {
return mPaddingLeft + dr.mDrawablePadding + dr.mDrawableSizeLeft;
}
}
/**
* Returns the right padding of the view, plus space for the right
* Drawable if any.
*/
public int getCompoundPaddingRight() {
final Drawables dr = mDrawables;
if (dr == null || dr.mDrawableRight == null) {
return mPaddingRight;
} else {
return mPaddingRight + dr.mDrawablePadding + dr.mDrawableSizeRight;
}
}
/**
* Returns the start padding of the view, plus space for the start
* Drawable if any.
*
* @hide
*/
public int getCompoundPaddingStart() {
resolveDrawables();
switch(getResolvedLayoutDirection()) {
default:
case LAYOUT_DIRECTION_LTR:
return getCompoundPaddingLeft();
case LAYOUT_DIRECTION_RTL:
return getCompoundPaddingRight();
}
}
/**
* Returns the end padding of the view, plus space for the end
* Drawable if any.
*
* @hide
*/
public int getCompoundPaddingEnd() {
resolveDrawables();
switch(getResolvedLayoutDirection()) {
default:
case LAYOUT_DIRECTION_LTR:
return getCompoundPaddingRight();
case LAYOUT_DIRECTION_RTL:
return getCompoundPaddingLeft();
}
}
/**
* Returns the extended top padding of the view, including both the
* top Drawable if any and any extra space to keep more than maxLines
* of text from showing. It is only valid to call this after measuring.
*/
public int getExtendedPaddingTop() {
if (mMaxMode != LINES) {
return getCompoundPaddingTop();
}
if (mLayout.getLineCount() <= mMaximum) {
return getCompoundPaddingTop();
}
int top = getCompoundPaddingTop();
int bottom = getCompoundPaddingBottom();
int viewht = getHeight() - top - bottom;
int layoutht = mLayout.getLineTop(mMaximum);
if (layoutht >= viewht) {
return top;
}
final int gravity = mGravity & Gravity.VERTICAL_GRAVITY_MASK;
if (gravity == Gravity.TOP) {
return top;
} else if (gravity == Gravity.BOTTOM) {
return top + viewht - layoutht;
} else { // (gravity == Gravity.CENTER_VERTICAL)
return top + (viewht - layoutht) / 2;
}
}
/**
* Returns the extended bottom padding of the view, including both the
* bottom Drawable if any and any extra space to keep more than maxLines
* of text from showing. It is only valid to call this after measuring.
*/
public int getExtendedPaddingBottom() {
if (mMaxMode != LINES) {
return getCompoundPaddingBottom();
}
if (mLayout.getLineCount() <= mMaximum) {
return getCompoundPaddingBottom();
}
int top = getCompoundPaddingTop();
int bottom = getCompoundPaddingBottom();
int viewht = getHeight() - top - bottom;
int layoutht = mLayout.getLineTop(mMaximum);
if (layoutht >= viewht) {
return bottom;
}
final int gravity = mGravity & Gravity.VERTICAL_GRAVITY_MASK;
if (gravity == Gravity.TOP) {
return bottom + viewht - layoutht;
} else if (gravity == Gravity.BOTTOM) {
return bottom;
} else { // (gravity == Gravity.CENTER_VERTICAL)
return bottom + (viewht - layoutht) / 2;
}
}
/**
* Returns the total left padding of the view, including the left
* Drawable if any.
*/
public int getTotalPaddingLeft() {
return getCompoundPaddingLeft();
}
/**
* Returns the total right padding of the view, including the right
* Drawable if any.
*/
public int getTotalPaddingRight() {
return getCompoundPaddingRight();
}
/**
* Returns the total start padding of the view, including the start
* Drawable if any.
*
* @hide
*/
public int getTotalPaddingStart() {
return getCompoundPaddingStart();
}
/**
* Returns the total end padding of the view, including the end
* Drawable if any.
*
* @hide
*/
public int getTotalPaddingEnd() {
return getCompoundPaddingEnd();
}
/**
* Returns the total top padding of the view, including the top
* Drawable if any, the extra space to keep more than maxLines
* from showing, and the vertical offset for gravity, if any.
*/
public int getTotalPaddingTop() {
return getExtendedPaddingTop() + getVerticalOffset(true);
}
/**
* Returns the total bottom padding of the view, including the bottom
* Drawable if any, the extra space to keep more than maxLines
* from showing, and the vertical offset for gravity, if any.
*/
public int getTotalPaddingBottom() {
return getExtendedPaddingBottom() + getBottomVerticalOffset(true);
}
/**
* Sets the Drawables (if any) to appear to the left of, above,
* to the right of, and below the text. Use null if you do not
* want a Drawable there. The Drawables must already have had
* {@link Drawable#setBounds} called.
*
* @attr ref android.R.styleable#TextView_drawableLeft
* @attr ref android.R.styleable#TextView_drawableTop
* @attr ref android.R.styleable#TextView_drawableRight
* @attr ref android.R.styleable#TextView_drawableBottom
*/
public void setCompoundDrawables(Drawable left, Drawable top,
Drawable right, Drawable bottom) {
Drawables dr = mDrawables;
final boolean drawables = left != null || top != null
|| right != null || bottom != null;
if (!drawables) {
// Clearing drawables... can we free the data structure?
if (dr != null) {
if (dr.mDrawablePadding == 0) {
mDrawables = null;
} else {
// We need to retain the last set padding, so just clear
// out all of the fields in the existing structure.
if (dr.mDrawableLeft != null) dr.mDrawableLeft.setCallback(null);
dr.mDrawableLeft = null;
if (dr.mDrawableTop != null) dr.mDrawableTop.setCallback(null);
dr.mDrawableTop = null;
if (dr.mDrawableRight != null) dr.mDrawableRight.setCallback(null);
dr.mDrawableRight = null;
if (dr.mDrawableBottom != null) dr.mDrawableBottom.setCallback(null);
dr.mDrawableBottom = null;
dr.mDrawableSizeLeft = dr.mDrawableHeightLeft = 0;
dr.mDrawableSizeRight = dr.mDrawableHeightRight = 0;
dr.mDrawableSizeTop = dr.mDrawableWidthTop = 0;
dr.mDrawableSizeBottom = dr.mDrawableWidthBottom = 0;
}
}
} else {
if (dr == null) {
mDrawables = dr = new Drawables();
}
if (dr.mDrawableLeft != left && dr.mDrawableLeft != null) {
dr.mDrawableLeft.setCallback(null);
}
dr.mDrawableLeft = left;
if (dr.mDrawableTop != top && dr.mDrawableTop != null) {
dr.mDrawableTop.setCallback(null);
}
dr.mDrawableTop = top;
if (dr.mDrawableRight != right && dr.mDrawableRight != null) {
dr.mDrawableRight.setCallback(null);
}
dr.mDrawableRight = right;
if (dr.mDrawableBottom != bottom && dr.mDrawableBottom != null) {
dr.mDrawableBottom.setCallback(null);
}
dr.mDrawableBottom = bottom;
final Rect compoundRect = dr.mCompoundRect;
int[] state;
state = getDrawableState();
if (left != null) {
left.setState(state);
left.copyBounds(compoundRect);
left.setCallback(this);
dr.mDrawableSizeLeft = compoundRect.width();
dr.mDrawableHeightLeft = compoundRect.height();
} else {
dr.mDrawableSizeLeft = dr.mDrawableHeightLeft = 0;
}
if (right != null) {
right.setState(state);
right.copyBounds(compoundRect);
right.setCallback(this);
dr.mDrawableSizeRight = compoundRect.width();
dr.mDrawableHeightRight = compoundRect.height();
} else {
dr.mDrawableSizeRight = dr.mDrawableHeightRight = 0;
}
if (top != null) {
top.setState(state);
top.copyBounds(compoundRect);
top.setCallback(this);
dr.mDrawableSizeTop = compoundRect.height();
dr.mDrawableWidthTop = compoundRect.width();
} else {
dr.mDrawableSizeTop = dr.mDrawableWidthTop = 0;
}
if (bottom != null) {
bottom.setState(state);
bottom.copyBounds(compoundRect);
bottom.setCallback(this);
dr.mDrawableSizeBottom = compoundRect.height();
dr.mDrawableWidthBottom = compoundRect.width();
} else {
dr.mDrawableSizeBottom = dr.mDrawableWidthBottom = 0;
}
}
invalidate();
requestLayout();
}
/**
* Sets the Drawables (if any) to appear to the left of, above,
* to the right of, and below the text. Use 0 if you do not
* want a Drawable there. The Drawables' bounds will be set to
* their intrinsic bounds.
*
* @param left Resource identifier of the left Drawable.
* @param top Resource identifier of the top Drawable.
* @param right Resource identifier of the right Drawable.
* @param bottom Resource identifier of the bottom Drawable.
*
* @attr ref android.R.styleable#TextView_drawableLeft
* @attr ref android.R.styleable#TextView_drawableTop
* @attr ref android.R.styleable#TextView_drawableRight
* @attr ref android.R.styleable#TextView_drawableBottom
*/
public void setCompoundDrawablesWithIntrinsicBounds(int left, int top, int right, int bottom) {
final Resources resources = getContext().getResources();
setCompoundDrawablesWithIntrinsicBounds(left != 0 ? resources.getDrawable(left) : null,
top != 0 ? resources.getDrawable(top) : null,
right != 0 ? resources.getDrawable(right) : null,
bottom != 0 ? resources.getDrawable(bottom) : null);
}
/**
* Sets the Drawables (if any) to appear to the left of, above,
* to the right of, and below the text. Use null if you do not
* want a Drawable there. The Drawables' bounds will be set to
* their intrinsic bounds.
*
* @attr ref android.R.styleable#TextView_drawableLeft
* @attr ref android.R.styleable#TextView_drawableTop
* @attr ref android.R.styleable#TextView_drawableRight
* @attr ref android.R.styleable#TextView_drawableBottom
*/
public void setCompoundDrawablesWithIntrinsicBounds(Drawable left, Drawable top,
Drawable right, Drawable bottom) {
if (left != null) {
left.setBounds(0, 0, left.getIntrinsicWidth(), left.getIntrinsicHeight());
}
if (right != null) {
right.setBounds(0, 0, right.getIntrinsicWidth(), right.getIntrinsicHeight());
}
if (top != null) {
top.setBounds(0, 0, top.getIntrinsicWidth(), top.getIntrinsicHeight());
}
if (bottom != null) {
bottom.setBounds(0, 0, bottom.getIntrinsicWidth(), bottom.getIntrinsicHeight());
}
setCompoundDrawables(left, top, right, bottom);
}
/**
* Sets the Drawables (if any) to appear to the start of, above,
* to the end of, and below the text. Use null if you do not
* want a Drawable there. The Drawables must already have had
* {@link Drawable#setBounds} called.
*
* @attr ref android.R.styleable#TextView_drawableStart
* @attr ref android.R.styleable#TextView_drawableTop
* @attr ref android.R.styleable#TextView_drawableEnd
* @attr ref android.R.styleable#TextView_drawableBottom
*
* @hide
*/
public void setCompoundDrawablesRelative(Drawable start, Drawable top,
Drawable end, Drawable bottom) {
Drawables dr = mDrawables;
final boolean drawables = start != null || top != null
|| end != null || bottom != null;
if (!drawables) {
// Clearing drawables... can we free the data structure?
if (dr != null) {
if (dr.mDrawablePadding == 0) {
mDrawables = null;
} else {
// We need to retain the last set padding, so just clear
// out all of the fields in the existing structure.
if (dr.mDrawableStart != null) dr.mDrawableStart.setCallback(null);
dr.mDrawableStart = null;
if (dr.mDrawableTop != null) dr.mDrawableTop.setCallback(null);
dr.mDrawableTop = null;
if (dr.mDrawableEnd != null) dr.mDrawableEnd.setCallback(null);
dr.mDrawableEnd = null;
if (dr.mDrawableBottom != null) dr.mDrawableBottom.setCallback(null);
dr.mDrawableBottom = null;
dr.mDrawableSizeStart = dr.mDrawableHeightStart = 0;
dr.mDrawableSizeEnd = dr.mDrawableHeightEnd = 0;
dr.mDrawableSizeTop = dr.mDrawableWidthTop = 0;
dr.mDrawableSizeBottom = dr.mDrawableWidthBottom = 0;
}
}
} else {
if (dr == null) {
mDrawables = dr = new Drawables();
}
if (dr.mDrawableStart != start && dr.mDrawableStart != null) {
dr.mDrawableStart.setCallback(null);
}
dr.mDrawableStart = start;
if (dr.mDrawableTop != top && dr.mDrawableTop != null) {
dr.mDrawableTop.setCallback(null);
}
dr.mDrawableTop = top;
if (dr.mDrawableEnd != end && dr.mDrawableEnd != null) {
dr.mDrawableEnd.setCallback(null);
}
dr.mDrawableEnd = end;
if (dr.mDrawableBottom != bottom && dr.mDrawableBottom != null) {
dr.mDrawableBottom.setCallback(null);
}
dr.mDrawableBottom = bottom;
final Rect compoundRect = dr.mCompoundRect;
int[] state;
state = getDrawableState();
if (start != null) {
start.setState(state);
start.copyBounds(compoundRect);
start.setCallback(this);
dr.mDrawableSizeStart = compoundRect.width();
dr.mDrawableHeightStart = compoundRect.height();
} else {
dr.mDrawableSizeStart = dr.mDrawableHeightStart = 0;
}
if (end != null) {
end.setState(state);
end.copyBounds(compoundRect);
end.setCallback(this);
dr.mDrawableSizeEnd = compoundRect.width();
dr.mDrawableHeightEnd = compoundRect.height();
} else {
dr.mDrawableSizeEnd = dr.mDrawableHeightEnd = 0;
}
if (top != null) {
top.setState(state);
top.copyBounds(compoundRect);
top.setCallback(this);
dr.mDrawableSizeTop = compoundRect.height();
dr.mDrawableWidthTop = compoundRect.width();
} else {
dr.mDrawableSizeTop = dr.mDrawableWidthTop = 0;
}
if (bottom != null) {
bottom.setState(state);
bottom.copyBounds(compoundRect);
bottom.setCallback(this);
dr.mDrawableSizeBottom = compoundRect.height();
dr.mDrawableWidthBottom = compoundRect.width();
} else {
dr.mDrawableSizeBottom = dr.mDrawableWidthBottom = 0;
}
}
resolveDrawables();
invalidate();
requestLayout();
}
/**
* Sets the Drawables (if any) to appear to the start of, above,
* to the end of, and below the text. Use 0 if you do not
* want a Drawable there. The Drawables' bounds will be set to
* their intrinsic bounds.
*
* @param start Resource identifier of the start Drawable.
* @param top Resource identifier of the top Drawable.
* @param end Resource identifier of the end Drawable.
* @param bottom Resource identifier of the bottom Drawable.
*
* @attr ref android.R.styleable#TextView_drawableStart
* @attr ref android.R.styleable#TextView_drawableTop
* @attr ref android.R.styleable#TextView_drawableEnd
* @attr ref android.R.styleable#TextView_drawableBottom
*
* @hide
*/
public void setCompoundDrawablesRelativeWithIntrinsicBounds(int start, int top, int end,
int bottom) {
resetResolvedDrawables();
final Resources resources = getContext().getResources();
setCompoundDrawablesRelativeWithIntrinsicBounds(
start != 0 ? resources.getDrawable(start) : null,
top != 0 ? resources.getDrawable(top) : null,
end != 0 ? resources.getDrawable(end) : null,
bottom != 0 ? resources.getDrawable(bottom) : null);
}
/**
* Sets the Drawables (if any) to appear to the start of, above,
* to the end of, and below the text. Use null if you do not
* want a Drawable there. The Drawables' bounds will be set to
* their intrinsic bounds.
*
* @attr ref android.R.styleable#TextView_drawableStart
* @attr ref android.R.styleable#TextView_drawableTop
* @attr ref android.R.styleable#TextView_drawableEnd
* @attr ref android.R.styleable#TextView_drawableBottom
*
* @hide
*/
public void setCompoundDrawablesRelativeWithIntrinsicBounds(Drawable start, Drawable top,
Drawable end, Drawable bottom) {
resetResolvedDrawables();
if (start != null) {
start.setBounds(0, 0, start.getIntrinsicWidth(), start.getIntrinsicHeight());
}
if (end != null) {
end.setBounds(0, 0, end.getIntrinsicWidth(), end.getIntrinsicHeight());
}
if (top != null) {
top.setBounds(0, 0, top.getIntrinsicWidth(), top.getIntrinsicHeight());
}
if (bottom != null) {
bottom.setBounds(0, 0, bottom.getIntrinsicWidth(), bottom.getIntrinsicHeight());
}
setCompoundDrawablesRelative(start, top, end, bottom);
}
/**
* Returns drawables for the left, top, right, and bottom borders.
*/
public Drawable[] getCompoundDrawables() {
final Drawables dr = mDrawables;
if (dr != null) {
return new Drawable[] {
dr.mDrawableLeft, dr.mDrawableTop, dr.mDrawableRight, dr.mDrawableBottom
};
} else {
return new Drawable[] { null, null, null, null };
}
}
/**
* Returns drawables for the start, top, end, and bottom borders.
*
* @hide
*/
public Drawable[] getCompoundDrawablesRelative() {
final Drawables dr = mDrawables;
if (dr != null) {
return new Drawable[] {
dr.mDrawableStart, dr.mDrawableTop, dr.mDrawableEnd, dr.mDrawableBottom
};
} else {
return new Drawable[] { null, null, null, null };
}
}
/**
* Sets the size of the padding between the compound drawables and
* the text.
*
* @attr ref android.R.styleable#TextView_drawablePadding
*/
public void setCompoundDrawablePadding(int pad) {
Drawables dr = mDrawables;
if (pad == 0) {
if (dr != null) {
dr.mDrawablePadding = pad;
}
} else {
if (dr == null) {
mDrawables = dr = new Drawables();
}
dr.mDrawablePadding = pad;
}
invalidate();
requestLayout();
}
/**
* Returns the padding between the compound drawables and the text.
*/
public int getCompoundDrawablePadding() {
final Drawables dr = mDrawables;
return dr != null ? dr.mDrawablePadding : 0;
}
@Override
public void setPadding(int left, int top, int right, int bottom) {
if (left != mPaddingLeft ||
right != mPaddingRight ||
top != mPaddingTop ||
bottom != mPaddingBottom) {
nullLayouts();
}
// the super call will requestLayout()
super.setPadding(left, top, right, bottom);
invalidate();
}
/**
* Gets the autolink mask of the text. See {@link
* android.text.util.Linkify#ALL Linkify.ALL} and peers for
* possible values.
*
* @attr ref android.R.styleable#TextView_autoLink
*/
public final int getAutoLinkMask() {
return mAutoLinkMask;
}
/**
* Sets the text color, size, style, hint color, and highlight color
* from the specified TextAppearance resource.
*/
public void setTextAppearance(Context context, int resid) {
TypedArray appearance =
context.obtainStyledAttributes(resid,
com.android.internal.R.styleable.TextAppearance);
int color;
ColorStateList colors;
int ts;
color = appearance.getColor(com.android.internal.R.styleable.TextAppearance_textColorHighlight, 0);
if (color != 0) {
setHighlightColor(color);
}
colors = appearance.getColorStateList(com.android.internal.R.styleable.
TextAppearance_textColor);
if (colors != null) {
setTextColor(colors);
}
ts = appearance.getDimensionPixelSize(com.android.internal.R.styleable.
TextAppearance_textSize, 0);
if (ts != 0) {
setRawTextSize(ts);
}
colors = appearance.getColorStateList(com.android.internal.R.styleable.
TextAppearance_textColorHint);
if (colors != null) {
setHintTextColor(colors);
}
colors = appearance.getColorStateList(com.android.internal.R.styleable.
TextAppearance_textColorLink);
if (colors != null) {
setLinkTextColor(colors);
}
int typefaceIndex, styleIndex;
typefaceIndex = appearance.getInt(com.android.internal.R.styleable.
TextAppearance_typeface, -1);
styleIndex = appearance.getInt(com.android.internal.R.styleable.
TextAppearance_textStyle, -1);
setTypefaceByIndex(typefaceIndex, styleIndex);
if (appearance.getBoolean(com.android.internal.R.styleable.TextAppearance_textAllCaps,
false)) {
setTransformationMethod(new AllCapsTransformationMethod(getContext()));
}
appearance.recycle();
}
/**
* @return the size (in pixels) of the default text size in this TextView.
*/
public float getTextSize() {
return mTextPaint.getTextSize();
}
/**
* Set the default text size to the given value, interpreted as "scaled
* pixel" units. This size is adjusted based on the current density and
* user font size preference.
*
* @param size The scaled pixel size.
*
* @attr ref android.R.styleable#TextView_textSize
*/
@android.view.RemotableViewMethod
public void setTextSize(float size) {
setTextSize(TypedValue.COMPLEX_UNIT_SP, size);
}
/**
* Set the default text size to a given unit and value. See {@link
* TypedValue} for the possible dimension units.
*
* @param unit The desired dimension unit.
* @param size The desired size in the given units.
*
* @attr ref android.R.styleable#TextView_textSize
*/
public void setTextSize(int unit, float size) {
Context c = getContext();
Resources r;
if (c == null)
r = Resources.getSystem();
else
r = c.getResources();
setRawTextSize(TypedValue.applyDimension(
unit, size, r.getDisplayMetrics()));
}
private void setRawTextSize(float size) {
if (size != mTextPaint.getTextSize()) {
mTextPaint.setTextSize(size);
if (mLayout != null) {
nullLayouts();
requestLayout();
invalidate();
}
}
}
/**
* @return the extent by which text is currently being stretched
* horizontally. This will usually be 1.
*/
public float getTextScaleX() {
return mTextPaint.getTextScaleX();
}
/**
* Sets the extent by which text should be stretched horizontally.
*
* @attr ref android.R.styleable#TextView_textScaleX
*/
@android.view.RemotableViewMethod
public void setTextScaleX(float size) {
if (size != mTextPaint.getTextScaleX()) {
mUserSetTextScaleX = true;
mTextPaint.setTextScaleX(size);
if (mLayout != null) {
nullLayouts();
requestLayout();
invalidate();
}
}
}
/**
* Sets the typeface and style in which the text should be displayed.
* Note that not all Typeface families actually have bold and italic
* variants, so you may need to use
* {@link #setTypeface(Typeface, int)} to get the appearance
* that you actually want.
*
* @attr ref android.R.styleable#TextView_typeface
* @attr ref android.R.styleable#TextView_textStyle
*/
public void setTypeface(Typeface tf) {
if (mTextPaint.getTypeface() != tf) {
mTextPaint.setTypeface(tf);
if (mLayout != null) {
nullLayouts();
requestLayout();
invalidate();
}
}
}
/**
* @return the current typeface and style in which the text is being
* displayed.
*/
public Typeface getTypeface() {
return mTextPaint.getTypeface();
}
/**
* Sets the text color for all the states (normal, selected,
* focused) to be this color.
*
* @attr ref android.R.styleable#TextView_textColor
*/
@android.view.RemotableViewMethod
public void setTextColor(int color) {
mTextColor = ColorStateList.valueOf(color);
updateTextColors();
}
/**
* Sets the text color.
*
* @attr ref android.R.styleable#TextView_textColor
*/
public void setTextColor(ColorStateList colors) {
if (colors == null) {
throw new NullPointerException();
}
mTextColor = colors;
updateTextColors();
}
/**
* Return the set of text colors.
*
* @return Returns the set of text colors.
*/
public final ColorStateList getTextColors() {
return mTextColor;
}
/**
* <p>Return the current color selected for normal text.</p>
*
* @return Returns the current text color.
*/
public final int getCurrentTextColor() {
return mCurTextColor;
}
/**
* Sets the color used to display the selection highlight.
*
* @attr ref android.R.styleable#TextView_textColorHighlight
*/
@android.view.RemotableViewMethod
public void setHighlightColor(int color) {
if (mHighlightColor != color) {
mHighlightColor = color;
invalidate();
}
}
/**
* Gives the text a shadow of the specified radius and color, the specified
* distance from its normal position.
*
* @attr ref android.R.styleable#TextView_shadowColor
* @attr ref android.R.styleable#TextView_shadowDx
* @attr ref android.R.styleable#TextView_shadowDy
* @attr ref android.R.styleable#TextView_shadowRadius
*/
public void setShadowLayer(float radius, float dx, float dy, int color) {
mTextPaint.setShadowLayer(radius, dx, dy, color);
mShadowRadius = radius;
mShadowDx = dx;
mShadowDy = dy;
invalidate();
}
/**
* @return the base paint used for the text. Please use this only to
* consult the Paint's properties and not to change them.
*/
public TextPaint getPaint() {
return mTextPaint;
}
/**
* Sets the autolink mask of the text. See {@link
* android.text.util.Linkify#ALL Linkify.ALL} and peers for
* possible values.
*
* @attr ref android.R.styleable#TextView_autoLink
*/
@android.view.RemotableViewMethod
public final void setAutoLinkMask(int mask) {
mAutoLinkMask = mask;
}
/**
* Sets whether the movement method will automatically be set to
* {@link LinkMovementMethod} if {@link #setAutoLinkMask} has been
* set to nonzero and links are detected in {@link #setText}.
* The default is true.
*
* @attr ref android.R.styleable#TextView_linksClickable
*/
@android.view.RemotableViewMethod
public final void setLinksClickable(boolean whether) {
mLinksClickable = whether;
}
/**
* Returns whether the movement method will automatically be set to
* {@link LinkMovementMethod} if {@link #setAutoLinkMask} has been
* set to nonzero and links are detected in {@link #setText}.
* The default is true.
*
* @attr ref android.R.styleable#TextView_linksClickable
*/
public final boolean getLinksClickable() {
return mLinksClickable;
}
/**
* Sets whether the soft input method will be made visible when this
* TextView gets focused. The default is true.
*
* @attr ref android.R.styleable#TextView_softInputShownOnFocus
* @hide
*/
@android.view.RemotableViewMethod
public final void setSoftInputShownOnFocus(boolean show) {
mSoftInputShownOnFocus = show;
}
/**
* Returns whether the soft input method will be made visible when this
* TextView gets focused. The default is true.
*
* @attr ref android.R.styleable#TextView_softInputShownOnFocus
* @hide
*/
public final boolean getSoftInputShownOnFocus() {
return mSoftInputShownOnFocus;
}
/**
* Returns the list of URLSpans attached to the text
* (by {@link Linkify} or otherwise) if any. You can call
* {@link URLSpan#getURL} on them to find where they link to
* or use {@link Spanned#getSpanStart} and {@link Spanned#getSpanEnd}
* to find the region of the text they are attached to.
*/
public URLSpan[] getUrls() {
if (mText instanceof Spanned) {
return ((Spanned) mText).getSpans(0, mText.length(), URLSpan.class);
} else {
return new URLSpan[0];
}
}
/**
* Sets the color of the hint text.
*
* @attr ref android.R.styleable#TextView_textColorHint
*/
@android.view.RemotableViewMethod
public final void setHintTextColor(int color) {
mHintTextColor = ColorStateList.valueOf(color);
updateTextColors();
}
/**
* Sets the color of the hint text.
*
* @attr ref android.R.styleable#TextView_textColorHint
*/
public final void setHintTextColor(ColorStateList colors) {
mHintTextColor = colors;
updateTextColors();
}
/**
* <p>Return the color used to paint the hint text.</p>
*
* @return Returns the list of hint text colors.
*/
public final ColorStateList getHintTextColors() {
return mHintTextColor;
}
/**
* <p>Return the current color selected to paint the hint text.</p>
*
* @return Returns the current hint text color.
*/
public final int getCurrentHintTextColor() {
return mHintTextColor != null ? mCurHintTextColor : mCurTextColor;
}
/**
* Sets the color of links in the text.
*
* @attr ref android.R.styleable#TextView_textColorLink
*/
@android.view.RemotableViewMethod
public final void setLinkTextColor(int color) {
mLinkTextColor = ColorStateList.valueOf(color);
updateTextColors();
}
/**
* Sets the color of links in the text.
*
* @attr ref android.R.styleable#TextView_textColorLink
*/
public final void setLinkTextColor(ColorStateList colors) {
mLinkTextColor = colors;
updateTextColors();
}
/**
* <p>Returns the color used to paint links in the text.</p>
*
* @return Returns the list of link text colors.
*/
public final ColorStateList getLinkTextColors() {
return mLinkTextColor;
}
/**
* Sets the horizontal alignment of the text and the
* vertical gravity that will be used when there is extra space
* in the TextView beyond what is required for the text itself.
*
* @see android.view.Gravity
* @attr ref android.R.styleable#TextView_gravity
*/
public void setGravity(int gravity) {
if ((gravity & Gravity.RELATIVE_HORIZONTAL_GRAVITY_MASK) == 0) {
gravity |= Gravity.START;
}
if ((gravity & Gravity.VERTICAL_GRAVITY_MASK) == 0) {
gravity |= Gravity.TOP;
}
boolean newLayout = false;
if ((gravity & Gravity.RELATIVE_HORIZONTAL_GRAVITY_MASK) !=
(mGravity & Gravity.RELATIVE_HORIZONTAL_GRAVITY_MASK)) {
newLayout = true;
}
if (gravity != mGravity) {
invalidate();
mLayoutAlignment = null;
}
mGravity = gravity;
if (mLayout != null && newLayout) {
// XXX this is heavy-handed because no actual content changes.
int want = mLayout.getWidth();
int hintWant = mHintLayout == null ? 0 : mHintLayout.getWidth();
makeNewLayout(want, hintWant, UNKNOWN_BORING, UNKNOWN_BORING,
mRight - mLeft - getCompoundPaddingLeft() -
getCompoundPaddingRight(), true);
}
}
/**
* Returns the horizontal and vertical alignment of this TextView.
*
* @see android.view.Gravity
* @attr ref android.R.styleable#TextView_gravity
*/
public int getGravity() {
return mGravity;
}
/**
* @return the flags on the Paint being used to display the text.
* @see Paint#getFlags
*/
public int getPaintFlags() {
return mTextPaint.getFlags();
}
/**
* Sets flags on the Paint being used to display the text and
* reflows the text if they are different from the old flags.
* @see Paint#setFlags
*/
@android.view.RemotableViewMethod
public void setPaintFlags(int flags) {
if (mTextPaint.getFlags() != flags) {
mTextPaint.setFlags(flags);
if (mLayout != null) {
nullLayouts();
requestLayout();
invalidate();
}
}
}
/**
* Sets whether the text should be allowed to be wider than the
* View is. If false, it will be wrapped to the width of the View.
*
* @attr ref android.R.styleable#TextView_scrollHorizontally
*/
public void setHorizontallyScrolling(boolean whether) {
if (mHorizontallyScrolling != whether) {
mHorizontallyScrolling = whether;
if (mLayout != null) {
nullLayouts();
requestLayout();
invalidate();
}
}
}
/**
* Returns whether the text is allowed to be wider than the View is.
* If false, the text will be wrapped to the width of the View.
*
* @attr ref android.R.styleable#TextView_scrollHorizontally
* @hide
*/
public boolean getHorizontallyScrolling() {
return mHorizontallyScrolling;
}
/**
* Makes the TextView at least this many lines tall.
*
* Setting this value overrides any other (minimum) height setting. A single line TextView will
* set this value to 1.
*
* @attr ref android.R.styleable#TextView_minLines
*/
@android.view.RemotableViewMethod
public void setMinLines(int minlines) {
mMinimum = minlines;
mMinMode = LINES;
requestLayout();
invalidate();
}
/**
* Makes the TextView at least this many pixels tall.
*
* Setting this value overrides any other (minimum) number of lines setting.
*
* @attr ref android.R.styleable#TextView_minHeight
*/
@android.view.RemotableViewMethod
public void setMinHeight(int minHeight) {
mMinimum = minHeight;
mMinMode = PIXELS;
requestLayout();
invalidate();
}
/**
* Makes the TextView at most this many lines tall.
*
* Setting this value overrides any other (maximum) height setting.
*
* @attr ref android.R.styleable#TextView_maxLines
*/
@android.view.RemotableViewMethod
public void setMaxLines(int maxlines) {
mMaximum = maxlines;
mMaxMode = LINES;
requestLayout();
invalidate();
}
/**
* Makes the TextView at most this many pixels tall. This option is mutually exclusive with the
* {@link #setMaxLines(int)} method.
*
* Setting this value overrides any other (maximum) number of lines setting.
*
* @attr ref android.R.styleable#TextView_maxHeight
*/
@android.view.RemotableViewMethod
public void setMaxHeight(int maxHeight) {
mMaximum = maxHeight;
mMaxMode = PIXELS;
requestLayout();
invalidate();
}
/**
* Makes the TextView exactly this many lines tall.
*
* Note that setting this value overrides any other (minimum / maximum) number of lines or
* height setting. A single line TextView will set this value to 1.
*
* @attr ref android.R.styleable#TextView_lines
*/
@android.view.RemotableViewMethod
public void setLines(int lines) {
mMaximum = mMinimum = lines;
mMaxMode = mMinMode = LINES;
requestLayout();
invalidate();
}
/**
* Makes the TextView exactly this many pixels tall.
* You could do the same thing by specifying this number in the
* LayoutParams.
*
* Note that setting this value overrides any other (minimum / maximum) number of lines or
* height setting.
*
* @attr ref android.R.styleable#TextView_height
*/
@android.view.RemotableViewMethod
public void setHeight(int pixels) {
mMaximum = mMinimum = pixels;
mMaxMode = mMinMode = PIXELS;
requestLayout();
invalidate();
}
/**
* Makes the TextView at least this many ems wide
*
* @attr ref android.R.styleable#TextView_minEms
*/
@android.view.RemotableViewMethod
public void setMinEms(int minems) {
mMinWidth = minems;
mMinWidthMode = EMS;
requestLayout();
invalidate();
}
/**
* Makes the TextView at least this many pixels wide
*
* @attr ref android.R.styleable#TextView_minWidth
*/
@android.view.RemotableViewMethod
public void setMinWidth(int minpixels) {
mMinWidth = minpixels;
mMinWidthMode = PIXELS;
requestLayout();
invalidate();
}
/**
* Makes the TextView at most this many ems wide
*
* @attr ref android.R.styleable#TextView_maxEms
*/
@android.view.RemotableViewMethod
public void setMaxEms(int maxems) {
mMaxWidth = maxems;
mMaxWidthMode = EMS;
requestLayout();
invalidate();
}
/**
* Makes the TextView at most this many pixels wide
*
* @attr ref android.R.styleable#TextView_maxWidth
*/
@android.view.RemotableViewMethod
public void setMaxWidth(int maxpixels) {
mMaxWidth = maxpixels;
mMaxWidthMode = PIXELS;
requestLayout();
invalidate();
}
/**
* Makes the TextView exactly this many ems wide
*
* @attr ref android.R.styleable#TextView_ems
*/
@android.view.RemotableViewMethod
public void setEms(int ems) {
mMaxWidth = mMinWidth = ems;
mMaxWidthMode = mMinWidthMode = EMS;
requestLayout();
invalidate();
}
/**
* Makes the TextView exactly this many pixels wide.
* You could do the same thing by specifying this number in the
* LayoutParams.
*
* @attr ref android.R.styleable#TextView_width
*/
@android.view.RemotableViewMethod
public void setWidth(int pixels) {
mMaxWidth = mMinWidth = pixels;
mMaxWidthMode = mMinWidthMode = PIXELS;
requestLayout();
invalidate();
}
/**
* Sets line spacing for this TextView. Each line will have its height
* multiplied by <code>mult</code> and have <code>add</code> added to it.
*
* @attr ref android.R.styleable#TextView_lineSpacingExtra
* @attr ref android.R.styleable#TextView_lineSpacingMultiplier
*/
public void setLineSpacing(float add, float mult) {
if (mSpacingAdd != add || mSpacingMult != mult) {
mSpacingAdd = add;
mSpacingMult = mult;
if (mLayout != null) {
nullLayouts();
requestLayout();
invalidate();
}
}
}
/**
* Convenience method: Append the specified text to the TextView's
* display buffer, upgrading it to BufferType.EDITABLE if it was
* not already editable.
*/
public final void append(CharSequence text) {
append(text, 0, text.length());
}
/**
* Convenience method: Append the specified text slice to the TextView's
* display buffer, upgrading it to BufferType.EDITABLE if it was
* not already editable.
*/
public void append(CharSequence text, int start, int end) {
if (!(mText instanceof Editable)) {
setText(mText, BufferType.EDITABLE);
}
((Editable) mText).append(text, start, end);
}
private void updateTextColors() {
boolean inval = false;
int color = mTextColor.getColorForState(getDrawableState(), 0);
if (color != mCurTextColor) {
mCurTextColor = color;
inval = true;
}
if (mLinkTextColor != null) {
color = mLinkTextColor.getColorForState(getDrawableState(), 0);
if (color != mTextPaint.linkColor) {
mTextPaint.linkColor = color;
inval = true;
}
}
if (mHintTextColor != null) {
color = mHintTextColor.getColorForState(getDrawableState(), 0);
if (color != mCurHintTextColor && mText.length() == 0) {
mCurHintTextColor = color;
inval = true;
}
}
if (inval) {
invalidate();
}
}
@Override
protected void drawableStateChanged() {
super.drawableStateChanged();
if (mTextColor != null && mTextColor.isStateful()
|| (mHintTextColor != null && mHintTextColor.isStateful())
|| (mLinkTextColor != null && mLinkTextColor.isStateful())) {
updateTextColors();
}
final Drawables dr = mDrawables;
if (dr != null) {
int[] state = getDrawableState();
if (dr.mDrawableTop != null && dr.mDrawableTop.isStateful()) {
dr.mDrawableTop.setState(state);
}
if (dr.mDrawableBottom != null && dr.mDrawableBottom.isStateful()) {
dr.mDrawableBottom.setState(state);
}
if (dr.mDrawableLeft != null && dr.mDrawableLeft.isStateful()) {
dr.mDrawableLeft.setState(state);
}
if (dr.mDrawableRight != null && dr.mDrawableRight.isStateful()) {
dr.mDrawableRight.setState(state);
}
if (dr.mDrawableStart != null && dr.mDrawableStart.isStateful()) {
dr.mDrawableStart.setState(state);
}
if (dr.mDrawableEnd != null && dr.mDrawableEnd.isStateful()) {
dr.mDrawableEnd.setState(state);
}
}
}
/**
* User interface state that is stored by TextView for implementing
* {@link View#onSaveInstanceState}.
*/
public static class SavedState extends BaseSavedState {
int selStart;
int selEnd;
CharSequence text;
boolean frozenWithFocus;
CharSequence error;
SavedState(Parcelable superState) {
super(superState);
}
@Override
public void writeToParcel(Parcel out, int flags) {
super.writeToParcel(out, flags);
out.writeInt(selStart);
out.writeInt(selEnd);
out.writeInt(frozenWithFocus ? 1 : 0);
TextUtils.writeToParcel(text, out, flags);
if (error == null) {
out.writeInt(0);
} else {
out.writeInt(1);
TextUtils.writeToParcel(error, out, flags);
}
}
@Override
public String toString() {
String str = "TextView.SavedState{"
+ Integer.toHexString(System.identityHashCode(this))
+ " start=" + selStart + " end=" + selEnd;
if (text != null) {
str += " text=" + text;
}
return str + "}";
}
@SuppressWarnings("hiding")
public static final Parcelable.Creator<SavedState> CREATOR
= new Parcelable.Creator<SavedState>() {
public SavedState createFromParcel(Parcel in) {
return new SavedState(in);
}
public SavedState[] newArray(int size) {
return new SavedState[size];
}
};
private SavedState(Parcel in) {
super(in);
selStart = in.readInt();
selEnd = in.readInt();
frozenWithFocus = (in.readInt() != 0);
text = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(in);
if (in.readInt() != 0) {
error = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(in);
}
}
}
@Override
public Parcelable onSaveInstanceState() {
Parcelable superState = super.onSaveInstanceState();
// Save state if we are forced to
boolean save = mFreezesText;
int start = 0;
int end = 0;
if (mText != null) {
start = getSelectionStart();
end = getSelectionEnd();
if (start >= 0 || end >= 0) {
// Or save state if there is a selection
save = true;
}
}
if (save) {
SavedState ss = new SavedState(superState);
// XXX Should also save the current scroll position!
ss.selStart = start;
ss.selEnd = end;
if (mText instanceof Spanned) {
/*
* Calling setText() strips off any ChangeWatchers;
* strip them now to avoid leaking references.
* But do it to a copy so that if there are any
* further changes to the text of this view, it
* won't get into an inconsistent state.
*/
Spannable sp = new SpannableString(mText);
for (ChangeWatcher cw : sp.getSpans(0, sp.length(), ChangeWatcher.class)) {
sp.removeSpan(cw);
}
removeMisspelledSpans(sp);
sp.removeSpan(mSuggestionRangeSpan);
ss.text = sp;
} else {
ss.text = mText.toString();
}
if (isFocused() && start >= 0 && end >= 0) {
ss.frozenWithFocus = true;
}
ss.error = mError;
return ss;
}
return superState;
}
void removeMisspelledSpans(Spannable spannable) {
SuggestionSpan[] suggestionSpans = spannable.getSpans(0, spannable.length(),
SuggestionSpan.class);
for (int i = 0; i < suggestionSpans.length; i++) {
int flags = suggestionSpans[i].getFlags();
if ((flags & SuggestionSpan.FLAG_EASY_CORRECT) != 0
&& (flags & SuggestionSpan.FLAG_MISSPELLED) != 0) {
spannable.removeSpan(suggestionSpans[i]);
}
}
}
@Override
public void onRestoreInstanceState(Parcelable state) {
if (!(state instanceof SavedState)) {
super.onRestoreInstanceState(state);
return;
}
SavedState ss = (SavedState)state;
super.onRestoreInstanceState(ss.getSuperState());
// XXX restore buffer type too, as well as lots of other stuff
if (ss.text != null) {
setText(ss.text);
}
if (ss.selStart >= 0 && ss.selEnd >= 0) {
if (mText instanceof Spannable) {
int len = mText.length();
if (ss.selStart > len || ss.selEnd > len) {
String restored = "";
if (ss.text != null) {
restored = "(restored) ";
}
Log.e(LOG_TAG, "Saved cursor position " + ss.selStart +
"/" + ss.selEnd + " out of range for " + restored +
"text " + mText);
} else {
Selection.setSelection((Spannable) mText, ss.selStart,
ss.selEnd);
if (ss.frozenWithFocus) {
mFrozenWithFocus = true;
}
}
}
}
if (ss.error != null) {
final CharSequence error = ss.error;
// Display the error later, after the first layout pass
post(new Runnable() {
public void run() {
setError(error);
}
});
}
}
/**
* Control whether this text view saves its entire text contents when
* freezing to an icicle, in addition to dynamic state such as cursor
* position. By default this is false, not saving the text. Set to true
* if the text in the text view is not being saved somewhere else in
* persistent storage (such as in a content provider) so that if the
* view is later thawed the user will not lose their data.
*
* @param freezesText Controls whether a frozen icicle should include the
* entire text data: true to include it, false to not.
*
* @attr ref android.R.styleable#TextView_freezesText
*/
@android.view.RemotableViewMethod
public void setFreezesText(boolean freezesText) {
mFreezesText = freezesText;
}
/**
* Return whether this text view is including its entire text contents
* in frozen icicles.
*
* @return Returns true if text is included, false if it isn't.
*
* @see #setFreezesText
*/
public boolean getFreezesText() {
return mFreezesText;
}
///////////////////////////////////////////////////////////////////////////
/**
* Sets the Factory used to create new Editables.
*/
public final void setEditableFactory(Editable.Factory factory) {
mEditableFactory = factory;
setText(mText);
}
/**
* Sets the Factory used to create new Spannables.
*/
public final void setSpannableFactory(Spannable.Factory factory) {
mSpannableFactory = factory;
setText(mText);
}
/**
* Sets the string value of the TextView. TextView <em>does not</em> accept
* HTML-like formatting, which you can do with text strings in XML resource files.
* To style your strings, attach android.text.style.* objects to a
* {@link android.text.SpannableString SpannableString}, or see the
* <a href="{@docRoot}guide/topics/resources/available-resources.html#stringresources">
* Available Resource Types</a> documentation for an example of setting
* formatted text in the XML resource file.
*
* @attr ref android.R.styleable#TextView_text
*/
@android.view.RemotableViewMethod
public final void setText(CharSequence text) {
setText(text, mBufferType);
}
/**
* Like {@link #setText(CharSequence)},
* except that the cursor position (if any) is retained in the new text.
*
* @param text The new text to place in the text view.
*
* @see #setText(CharSequence)
*/
@android.view.RemotableViewMethod
public final void setTextKeepState(CharSequence text) {
setTextKeepState(text, mBufferType);
}
/**
* Sets the text that this TextView is to display (see
* {@link #setText(CharSequence)}) and also sets whether it is stored
* in a styleable/spannable buffer and whether it is editable.
*
* @attr ref android.R.styleable#TextView_text
* @attr ref android.R.styleable#TextView_bufferType
*/
public void setText(CharSequence text, BufferType type) {
setText(text, type, true, 0);
if (mCharWrapper != null) {
mCharWrapper.mChars = null;
}
}
private void setText(CharSequence text, BufferType type,
boolean notifyBefore, int oldlen) {
if (text == null) {
text = "";
}
// If suggestions are not enabled, remove the suggestion spans from the text
if (!isSuggestionsEnabled()) {
text = removeSuggestionSpans(text);
}
if (!mUserSetTextScaleX) mTextPaint.setTextScaleX(1.0f);
if (text instanceof Spanned &&
((Spanned) text).getSpanStart(TextUtils.TruncateAt.MARQUEE) >= 0) {
if (ViewConfiguration.get(mContext).isFadingMarqueeEnabled()) {
setHorizontalFadingEdgeEnabled(true);
mMarqueeFadeMode = MARQUEE_FADE_NORMAL;
} else {
setHorizontalFadingEdgeEnabled(false);
mMarqueeFadeMode = MARQUEE_FADE_SWITCH_SHOW_ELLIPSIS;
}
setEllipsize(TextUtils.TruncateAt.MARQUEE);
}
int n = mFilters.length;
for (int i = 0; i < n; i++) {
CharSequence out = mFilters[i].filter(text, 0, text.length(),
EMPTY_SPANNED, 0, 0);
if (out != null) {
text = out;
}
}
if (notifyBefore) {
if (mText != null) {
oldlen = mText.length();
sendBeforeTextChanged(mText, 0, oldlen, text.length());
} else {
sendBeforeTextChanged("", 0, 0, text.length());
}
}
boolean needEditableForNotification = false;
if (mListeners != null && mListeners.size() != 0) {
needEditableForNotification = true;
}
if (type == BufferType.EDITABLE || mInput != null || needEditableForNotification) {
Editable t = mEditableFactory.newEditable(text);
text = t;
setFilters(t, mFilters);
InputMethodManager imm = InputMethodManager.peekInstance();
if (imm != null) imm.restartInput(this);
} else if (type == BufferType.SPANNABLE || mMovement != null) {
text = mSpannableFactory.newSpannable(text);
} else if (!(text instanceof CharWrapper)) {
text = TextUtils.stringOrSpannedString(text);
}
if (mAutoLinkMask != 0) {
Spannable s2;
if (type == BufferType.EDITABLE || text instanceof Spannable) {
s2 = (Spannable) text;
} else {
s2 = mSpannableFactory.newSpannable(text);
}
if (Linkify.addLinks(s2, mAutoLinkMask)) {
text = s2;
type = (type == BufferType.EDITABLE) ? BufferType.EDITABLE : BufferType.SPANNABLE;
/*
* We must go ahead and set the text before changing the
* movement method, because setMovementMethod() may call
* setText() again to try to upgrade the buffer type.
*/
mText = text;
// Do not change the movement method for text that support text selection as it
// would prevent an arbitrary cursor displacement.
if (mLinksClickable && !textCanBeSelected()) {
setMovementMethod(LinkMovementMethod.getInstance());
}
}
}
mBufferType = type;
mText = text;
if (mTransformation == null) {
mTransformed = text;
} else {
mTransformed = mTransformation.getTransformation(text, this);
}
final int textLength = text.length();
if (text instanceof Spannable && !mAllowTransformationLengthChange) {
Spannable sp = (Spannable) text;
// Remove any ChangeWatchers that might have come
// from other TextViews.
final ChangeWatcher[] watchers = sp.getSpans(0, sp.length(), ChangeWatcher.class);
final int count = watchers.length;
for (int i = 0; i < count; i++)
sp.removeSpan(watchers[i]);
if (mChangeWatcher == null)
mChangeWatcher = new ChangeWatcher();
sp.setSpan(mChangeWatcher, 0, textLength, Spanned.SPAN_INCLUSIVE_INCLUSIVE |
(PRIORITY << Spanned.SPAN_PRIORITY_SHIFT));
if (mInput != null) {
sp.setSpan(mInput, 0, textLength, Spanned.SPAN_INCLUSIVE_INCLUSIVE);
}
if (mTransformation != null) {
sp.setSpan(mTransformation, 0, textLength, Spanned.SPAN_INCLUSIVE_INCLUSIVE);
}
if (mMovement != null) {
mMovement.initialize(this, (Spannable) text);
/*
* Initializing the movement method will have set the
* selection, so reset mSelectionMoved to keep that from
* interfering with the normal on-focus selection-setting.
*/
mSelectionMoved = false;
}
}
if (mLayout != null) {
checkForRelayout();
}
sendOnTextChanged(text, 0, oldlen, textLength);
onTextChanged(text, 0, oldlen, textLength);
if (needEditableForNotification) {
sendAfterTextChanged((Editable) text);
}
// SelectionModifierCursorController depends on textCanBeSelected, which depends on text
prepareCursorControllers();
}
/**
* Sets the TextView to display the specified slice of the specified
* char array. You must promise that you will not change the contents
* of the array except for right before another call to setText(),
* since the TextView has no way to know that the text
* has changed and that it needs to invalidate and re-layout.
*/
public final void setText(char[] text, int start, int len) {
int oldlen = 0;
if (start < 0 || len < 0 || start + len > text.length) {
throw new IndexOutOfBoundsException(start + ", " + len);
}
/*
* We must do the before-notification here ourselves because if
* the old text is a CharWrapper we destroy it before calling
* into the normal path.
*/
if (mText != null) {
oldlen = mText.length();
sendBeforeTextChanged(mText, 0, oldlen, len);
} else {
sendBeforeTextChanged("", 0, 0, len);
}
if (mCharWrapper == null) {
mCharWrapper = new CharWrapper(text, start, len);
} else {
mCharWrapper.set(text, start, len);
}
setText(mCharWrapper, mBufferType, false, oldlen);
}
private static class CharWrapper implements CharSequence, GetChars, GraphicsOperations {
private char[] mChars;
private int mStart, mLength;
public CharWrapper(char[] chars, int start, int len) {
mChars = chars;
mStart = start;
mLength = len;
}
/* package */ void set(char[] chars, int start, int len) {
mChars = chars;
mStart = start;
mLength = len;
}
public int length() {
return mLength;
}
public char charAt(int off) {
return mChars[off + mStart];
}
@Override
public String toString() {
return new String(mChars, mStart, mLength);
}
public CharSequence subSequence(int start, int end) {
if (start < 0 || end < 0 || start > mLength || end > mLength) {
throw new IndexOutOfBoundsException(start + ", " + end);
}
return new String(mChars, start + mStart, end - start);
}
public void getChars(int start, int end, char[] buf, int off) {
if (start < 0 || end < 0 || start > mLength || end > mLength) {
throw new IndexOutOfBoundsException(start + ", " + end);
}
System.arraycopy(mChars, start + mStart, buf, off, end - start);
}
public void drawText(Canvas c, int start, int end,
float x, float y, Paint p) {
c.drawText(mChars, start + mStart, end - start, x, y, p);
}
public void drawTextRun(Canvas c, int start, int end,
int contextStart, int contextEnd, float x, float y, int flags, Paint p) {
int count = end - start;
int contextCount = contextEnd - contextStart;
c.drawTextRun(mChars, start + mStart, count, contextStart + mStart,
contextCount, x, y, flags, p);
}
public float measureText(int start, int end, Paint p) {
return p.measureText(mChars, start + mStart, end - start);
}
public int getTextWidths(int start, int end, float[] widths, Paint p) {
return p.getTextWidths(mChars, start + mStart, end - start, widths);
}
public float getTextRunAdvances(int start, int end, int contextStart,
int contextEnd, int flags, float[] advances, int advancesIndex,
Paint p) {
int count = end - start;
int contextCount = contextEnd - contextStart;
return p.getTextRunAdvances(mChars, start + mStart, count,
contextStart + mStart, contextCount, flags, advances,
advancesIndex);
}
public float getTextRunAdvances(int start, int end, int contextStart,
int contextEnd, int flags, float[] advances, int advancesIndex,
Paint p, int reserved) {
int count = end - start;
int contextCount = contextEnd - contextStart;
return p.getTextRunAdvances(mChars, start + mStart, count,
contextStart + mStart, contextCount, flags, advances,
advancesIndex, reserved);
}
public int getTextRunCursor(int contextStart, int contextEnd, int flags,
int offset, int cursorOpt, Paint p) {
int contextCount = contextEnd - contextStart;
return p.getTextRunCursor(mChars, contextStart + mStart,
contextCount, flags, offset + mStart, cursorOpt);
}
}
/**
* Like {@link #setText(CharSequence, android.widget.TextView.BufferType)},
* except that the cursor position (if any) is retained in the new text.
*
* @see #setText(CharSequence, android.widget.TextView.BufferType)
*/
public final void setTextKeepState(CharSequence text, BufferType type) {
int start = getSelectionStart();
int end = getSelectionEnd();
int len = text.length();
setText(text, type);
if (start >= 0 || end >= 0) {
if (mText instanceof Spannable) {
Selection.setSelection((Spannable) mText,
Math.max(0, Math.min(start, len)),
Math.max(0, Math.min(end, len)));
}
}
}
@android.view.RemotableViewMethod
public final void setText(int resid) {
setText(getContext().getResources().getText(resid));
}
public final void setText(int resid, BufferType type) {
setText(getContext().getResources().getText(resid), type);
}
/**
* Sets the text to be displayed when the text of the TextView is empty.
* Null means to use the normal empty text. The hint does not currently
* participate in determining the size of the view.
*
* @attr ref android.R.styleable#TextView_hint
*/
@android.view.RemotableViewMethod
public final void setHint(CharSequence hint) {
mHint = TextUtils.stringOrSpannedString(hint);
if (mLayout != null) {
checkForRelayout();
}
if (mText.length() == 0) {
invalidate();
}
}
/**
* Sets the text to be displayed when the text of the TextView is empty,
* from a resource.
*
* @attr ref android.R.styleable#TextView_hint
*/
@android.view.RemotableViewMethod
public final void setHint(int resid) {
setHint(getContext().getResources().getText(resid));
}
/**
* Returns the hint that is displayed when the text of the TextView
* is empty.
*
* @attr ref android.R.styleable#TextView_hint
*/
@ViewDebug.CapturedViewProperty
public CharSequence getHint() {
return mHint;
}
private static boolean isMultilineInputType(int type) {
return (type & (EditorInfo.TYPE_MASK_CLASS | EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE)) ==
(EditorInfo.TYPE_CLASS_TEXT | EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE);
}
/**
* Set the type of the content with a constant as defined for {@link EditorInfo#inputType}. This
* will take care of changing the key listener, by calling {@link #setKeyListener(KeyListener)},
* to match the given content type. If the given content type is {@link EditorInfo#TYPE_NULL}
* then a soft keyboard will not be displayed for this text view.
*
* Note that the maximum number of displayed lines (see {@link #setMaxLines(int)}) will be
* modified if you change the {@link EditorInfo#TYPE_TEXT_FLAG_MULTI_LINE} flag of the input
* type.
*
* @see #getInputType()
* @see #setRawInputType(int)
* @see android.text.InputType
* @attr ref android.R.styleable#TextView_inputType
*/
public void setInputType(int type) {
final boolean wasPassword = isPasswordInputType(mInputType);
final boolean wasVisiblePassword = isVisiblePasswordInputType(mInputType);
setInputType(type, false);
final boolean isPassword = isPasswordInputType(type);
final boolean isVisiblePassword = isVisiblePasswordInputType(type);
boolean forceUpdate = false;
if (isPassword) {
setTransformationMethod(PasswordTransformationMethod.getInstance());
setTypefaceByIndex(MONOSPACE, 0);
} else if (isVisiblePassword) {
if (mTransformation == PasswordTransformationMethod.getInstance()) {
forceUpdate = true;
}
setTypefaceByIndex(MONOSPACE, 0);
} else if (wasPassword || wasVisiblePassword) {
// not in password mode, clean up typeface and transformation
setTypefaceByIndex(-1, -1);
if (mTransformation == PasswordTransformationMethod.getInstance()) {
forceUpdate = true;
}
}
boolean singleLine = !isMultilineInputType(type);
// We need to update the single line mode if it has changed or we
// were previously in password mode.
if (mSingleLine != singleLine || forceUpdate) {
// Change single line mode, but only change the transformation if
// we are not in password mode.
applySingleLine(singleLine, !isPassword, true);
}
if (!isSuggestionsEnabled()) {
mText = removeSuggestionSpans(mText);
}
InputMethodManager imm = InputMethodManager.peekInstance();
if (imm != null) imm.restartInput(this);
}
/**
* It would be better to rely on the input type for everything. A password inputType should have
* a password transformation. We should hence use isPasswordInputType instead of this method.
*
* We should:
* - Call setInputType in setKeyListener instead of changing the input type directly (which
* would install the correct transformation).
* - Refuse the installation of a non-password transformation in setTransformation if the input
* type is password.
*
* However, this is like this for legacy reasons and we cannot break existing apps. This method
* is useful since it matches what the user can see (obfuscated text or not).
*
* @return true if the current transformation method is of the password type.
*/
private boolean hasPasswordTransformationMethod() {
return mTransformation instanceof PasswordTransformationMethod;
}
private static boolean isPasswordInputType(int inputType) {
final int variation =
inputType & (EditorInfo.TYPE_MASK_CLASS | EditorInfo.TYPE_MASK_VARIATION);
return variation
== (EditorInfo.TYPE_CLASS_TEXT | EditorInfo.TYPE_TEXT_VARIATION_PASSWORD)
|| variation
== (EditorInfo.TYPE_CLASS_TEXT | EditorInfo.TYPE_TEXT_VARIATION_WEB_PASSWORD)
|| variation
== (EditorInfo.TYPE_CLASS_NUMBER | EditorInfo.TYPE_NUMBER_VARIATION_PASSWORD);
}
private static boolean isVisiblePasswordInputType(int inputType) {
final int variation =
inputType & (EditorInfo.TYPE_MASK_CLASS | EditorInfo.TYPE_MASK_VARIATION);
return variation
== (EditorInfo.TYPE_CLASS_TEXT | EditorInfo.TYPE_TEXT_VARIATION_VISIBLE_PASSWORD);
}
/**
* Directly change the content type integer of the text view, without
* modifying any other state.
* @see #setInputType(int)
* @see android.text.InputType
* @attr ref android.R.styleable#TextView_inputType
*/
public void setRawInputType(int type) {
mInputType = type;
}
private void setInputType(int type, boolean direct) {
final int cls = type & EditorInfo.TYPE_MASK_CLASS;
KeyListener input;
if (cls == EditorInfo.TYPE_CLASS_TEXT) {
boolean autotext = (type & EditorInfo.TYPE_TEXT_FLAG_AUTO_CORRECT) != 0;
TextKeyListener.Capitalize cap;
if ((type & EditorInfo.TYPE_TEXT_FLAG_CAP_CHARACTERS) != 0) {
cap = TextKeyListener.Capitalize.CHARACTERS;
} else if ((type & EditorInfo.TYPE_TEXT_FLAG_CAP_WORDS) != 0) {
cap = TextKeyListener.Capitalize.WORDS;
} else if ((type & EditorInfo.TYPE_TEXT_FLAG_CAP_SENTENCES) != 0) {
cap = TextKeyListener.Capitalize.SENTENCES;
} else {
cap = TextKeyListener.Capitalize.NONE;
}
input = TextKeyListener.getInstance(autotext, cap);
} else if (cls == EditorInfo.TYPE_CLASS_NUMBER) {
input = DigitsKeyListener.getInstance(
(type & EditorInfo.TYPE_NUMBER_FLAG_SIGNED) != 0,
(type & EditorInfo.TYPE_NUMBER_FLAG_DECIMAL) != 0);
} else if (cls == EditorInfo.TYPE_CLASS_DATETIME) {
switch (type & EditorInfo.TYPE_MASK_VARIATION) {
case EditorInfo.TYPE_DATETIME_VARIATION_DATE:
input = DateKeyListener.getInstance();
break;
case EditorInfo.TYPE_DATETIME_VARIATION_TIME:
input = TimeKeyListener.getInstance();
break;
default:
input = DateTimeKeyListener.getInstance();
break;
}
} else if (cls == EditorInfo.TYPE_CLASS_PHONE) {
input = DialerKeyListener.getInstance();
} else {
input = TextKeyListener.getInstance();
}
setRawInputType(type);
if (direct) mInput = input;
else {
setKeyListenerOnly(input);
}
}
/**
* Get the type of the content.
*
* @see #setInputType(int)
* @see android.text.InputType
*/
public int getInputType() {
return mInputType;
}
/**
* Change the editor type integer associated with the text view, which
* will be reported to an IME with {@link EditorInfo#imeOptions} when it
* has focus.
* @see #getImeOptions
* @see android.view.inputmethod.EditorInfo
* @attr ref android.R.styleable#TextView_imeOptions
*/
public void setImeOptions(int imeOptions) {
if (mInputContentType == null) {
mInputContentType = new InputContentType();
}
mInputContentType.imeOptions = imeOptions;
}
/**
* Get the type of the IME editor.
*
* @see #setImeOptions(int)
* @see android.view.inputmethod.EditorInfo
*/
public int getImeOptions() {
return mInputContentType != null
? mInputContentType.imeOptions : EditorInfo.IME_NULL;
}
/**
* Change the custom IME action associated with the text view, which
* will be reported to an IME with {@link EditorInfo#actionLabel}
* and {@link EditorInfo#actionId} when it has focus.
* @see #getImeActionLabel
* @see #getImeActionId
* @see android.view.inputmethod.EditorInfo
* @attr ref android.R.styleable#TextView_imeActionLabel
* @attr ref android.R.styleable#TextView_imeActionId
*/
public void setImeActionLabel(CharSequence label, int actionId) {
if (mInputContentType == null) {
mInputContentType = new InputContentType();
}
mInputContentType.imeActionLabel = label;
mInputContentType.imeActionId = actionId;
}
/**
* Get the IME action label previous set with {@link #setImeActionLabel}.
*
* @see #setImeActionLabel
* @see android.view.inputmethod.EditorInfo
*/
public CharSequence getImeActionLabel() {
return mInputContentType != null
? mInputContentType.imeActionLabel : null;
}
/**
* Get the IME action ID previous set with {@link #setImeActionLabel}.
*
* @see #setImeActionLabel
* @see android.view.inputmethod.EditorInfo
*/
public int getImeActionId() {
return mInputContentType != null
? mInputContentType.imeActionId : 0;
}
/**
* Set a special listener to be called when an action is performed
* on the text view. This will be called when the enter key is pressed,
* or when an action supplied to the IME is selected by the user. Setting
* this means that the normal hard key event will not insert a newline
* into the text view, even if it is multi-line; holding down the ALT
* modifier will, however, allow the user to insert a newline character.
*/
public void setOnEditorActionListener(OnEditorActionListener l) {
if (mInputContentType == null) {
mInputContentType = new InputContentType();
}
mInputContentType.onEditorActionListener = l;
}
/**
* Called when an attached input method calls
* {@link InputConnection#performEditorAction(int)
* InputConnection.performEditorAction()}
* for this text view. The default implementation will call your action
* listener supplied to {@link #setOnEditorActionListener}, or perform
* a standard operation for {@link EditorInfo#IME_ACTION_NEXT
* EditorInfo.IME_ACTION_NEXT}, {@link EditorInfo#IME_ACTION_PREVIOUS
* EditorInfo.IME_ACTION_PREVIOUS}, or {@link EditorInfo#IME_ACTION_DONE
* EditorInfo.IME_ACTION_DONE}.
*
* <p>For backwards compatibility, if no IME options have been set and the
* text view would not normally advance focus on enter, then
* the NEXT and DONE actions received here will be turned into an enter
* key down/up pair to go through the normal key handling.
*
* @param actionCode The code of the action being performed.
*
* @see #setOnEditorActionListener
*/
public void onEditorAction(int actionCode) {
final InputContentType ict = mInputContentType;
if (ict != null) {
if (ict.onEditorActionListener != null) {
if (ict.onEditorActionListener.onEditorAction(this,
actionCode, null)) {
return;
}
}
// This is the handling for some default action.
// Note that for backwards compatibility we don't do this
// default handling if explicit ime options have not been given,
// instead turning this into the normal enter key codes that an
// app may be expecting.
if (actionCode == EditorInfo.IME_ACTION_NEXT) {
View v = focusSearch(FOCUS_FORWARD);
if (v != null) {
if (!v.requestFocus(FOCUS_FORWARD)) {
throw new IllegalStateException("focus search returned a view " +
"that wasn't able to take focus!");
}
}
return;
} else if (actionCode == EditorInfo.IME_ACTION_PREVIOUS) {
View v = focusSearch(FOCUS_BACKWARD);
if (v != null) {
if (!v.requestFocus(FOCUS_BACKWARD)) {
throw new IllegalStateException("focus search returned a view " +
"that wasn't able to take focus!");
}
}
return;
} else if (actionCode == EditorInfo.IME_ACTION_DONE) {
InputMethodManager imm = InputMethodManager.peekInstance();
if (imm != null && imm.isActive(this)) {
imm.hideSoftInputFromWindow(getWindowToken(), 0);
}
return;
}
}
Handler h = getHandler();
if (h != null) {
long eventTime = SystemClock.uptimeMillis();
h.sendMessage(h.obtainMessage(ViewRootImpl.DISPATCH_KEY_FROM_IME,
new KeyEvent(eventTime, eventTime,
KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_ENTER, 0, 0,
KeyCharacterMap.VIRTUAL_KEYBOARD, 0,
KeyEvent.FLAG_SOFT_KEYBOARD | KeyEvent.FLAG_KEEP_TOUCH_MODE
| KeyEvent.FLAG_EDITOR_ACTION)));
h.sendMessage(h.obtainMessage(ViewRootImpl.DISPATCH_KEY_FROM_IME,
new KeyEvent(SystemClock.uptimeMillis(), eventTime,
KeyEvent.ACTION_UP, KeyEvent.KEYCODE_ENTER, 0, 0,
KeyCharacterMap.VIRTUAL_KEYBOARD, 0,
KeyEvent.FLAG_SOFT_KEYBOARD | KeyEvent.FLAG_KEEP_TOUCH_MODE
| KeyEvent.FLAG_EDITOR_ACTION)));
}
}
/**
* Set the private content type of the text, which is the
* {@link EditorInfo#privateImeOptions EditorInfo.privateImeOptions}
* field that will be filled in when creating an input connection.
*
* @see #getPrivateImeOptions()
* @see EditorInfo#privateImeOptions
* @attr ref android.R.styleable#TextView_privateImeOptions
*/
public void setPrivateImeOptions(String type) {
if (mInputContentType == null) mInputContentType = new InputContentType();
mInputContentType.privateImeOptions = type;
}
/**
* Get the private type of the content.
*
* @see #setPrivateImeOptions(String)
* @see EditorInfo#privateImeOptions
*/
public String getPrivateImeOptions() {
return mInputContentType != null
? mInputContentType.privateImeOptions : null;
}
/**
* Set the extra input data of the text, which is the
* {@link EditorInfo#extras TextBoxAttribute.extras}
* Bundle that will be filled in when creating an input connection. The
* given integer is the resource ID of an XML resource holding an
* {@link android.R.styleable#InputExtras <input-extras>} XML tree.
*
* @see #getInputExtras(boolean)
* @see EditorInfo#extras
* @attr ref android.R.styleable#TextView_editorExtras
*/
public void setInputExtras(int xmlResId)
throws XmlPullParserException, IOException {
XmlResourceParser parser = getResources().getXml(xmlResId);
if (mInputContentType == null) mInputContentType = new InputContentType();
mInputContentType.extras = new Bundle();
getResources().parseBundleExtras(parser, mInputContentType.extras);
}
/**
* Retrieve the input extras currently associated with the text view, which
* can be viewed as well as modified.
*
* @param create If true, the extras will be created if they don't already
* exist. Otherwise, null will be returned if none have been created.
* @see #setInputExtras(int)
* @see EditorInfo#extras
* @attr ref android.R.styleable#TextView_editorExtras
*/
public Bundle getInputExtras(boolean create) {
if (mInputContentType == null) {
if (!create) return null;
mInputContentType = new InputContentType();
}
if (mInputContentType.extras == null) {
if (!create) return null;
mInputContentType.extras = new Bundle();
}
return mInputContentType.extras;
}
/**
* Returns the error message that was set to be displayed with
* {@link #setError}, or <code>null</code> if no error was set
* or if it the error was cleared by the widget after user input.
*/
public CharSequence getError() {
return mError;
}
/**
* Sets the right-hand compound drawable of the TextView to the "error"
* icon and sets an error message that will be displayed in a popup when
* the TextView has focus. The icon and error message will be reset to
* null when any key events cause changes to the TextView's text. If the
* <code>error</code> is <code>null</code>, the error message and icon
* will be cleared.
*/
@android.view.RemotableViewMethod
public void setError(CharSequence error) {
if (error == null) {
setError(null, null);
} else {
Drawable dr = getContext().getResources().
getDrawable(com.android.internal.R.drawable.indicator_input_error);
dr.setBounds(0, 0, dr.getIntrinsicWidth(), dr.getIntrinsicHeight());
setError(error, dr);
}
}
/**
* Sets the right-hand compound drawable of the TextView to the specified
* icon and sets an error message that will be displayed in a popup when
* the TextView has focus. The icon and error message will be reset to
* null when any key events cause changes to the TextView's text. The
* drawable must already have had {@link Drawable#setBounds} set on it.
* If the <code>error</code> is <code>null</code>, the error message will
* be cleared (and you should provide a <code>null</code> icon as well).
*/
public void setError(CharSequence error, Drawable icon) {
error = TextUtils.stringOrSpannedString(error);
mError = error;
mErrorWasChanged = true;
final Drawables dr = mDrawables;
if (dr != null) {
switch (getResolvedLayoutDirection()) {
default:
case LAYOUT_DIRECTION_LTR:
setCompoundDrawables(dr.mDrawableLeft, dr.mDrawableTop, icon,
dr.mDrawableBottom);
break;
case LAYOUT_DIRECTION_RTL:
setCompoundDrawables(icon, dr.mDrawableTop, dr.mDrawableRight,
dr.mDrawableBottom);
break;
}
} else {
setCompoundDrawables(null, null, icon, null);
}
if (error == null) {
if (mPopup != null) {
if (mPopup.isShowing()) {
mPopup.dismiss();
}
mPopup = null;
}
} else {
if (isFocused()) {
showError();
}
}
}
private void showError() {
if (getWindowToken() == null) {
mShowErrorAfterAttach = true;
return;
}
if (mPopup == null) {
LayoutInflater inflater = LayoutInflater.from(getContext());
final TextView err = (TextView) inflater.inflate(
com.android.internal.R.layout.textview_hint, null);
final float scale = getResources().getDisplayMetrics().density;
mPopup = new ErrorPopup(err, (int) (200 * scale + 0.5f), (int) (50 * scale + 0.5f));
mPopup.setFocusable(false);
// The user is entering text, so the input method is needed. We
// don't want the popup to be displayed on top of it.
mPopup.setInputMethodMode(PopupWindow.INPUT_METHOD_NEEDED);
}
TextView tv = (TextView) mPopup.getContentView();
chooseSize(mPopup, mError, tv);
tv.setText(mError);
mPopup.showAsDropDown(this, getErrorX(), getErrorY());
mPopup.fixDirection(mPopup.isAboveAnchor());
}
private static class ErrorPopup extends PopupWindow {
private boolean mAbove = false;
private final TextView mView;
private int mPopupInlineErrorBackgroundId = 0;
private int mPopupInlineErrorAboveBackgroundId = 0;
ErrorPopup(TextView v, int width, int height) {
super(v, width, height);
mView = v;
// Make sure the TextView has a background set as it will be used the first time it is
// shown and positionned. Initialized with below background, which should have
// dimensions identical to the above version for this to work (and is more likely).
mPopupInlineErrorBackgroundId = getResourceId(mPopupInlineErrorBackgroundId,
com.android.internal.R.styleable.Theme_errorMessageBackground);
mView.setBackgroundResource(mPopupInlineErrorBackgroundId);
}
void fixDirection(boolean above) {
mAbove = above;
if (above) {
mPopupInlineErrorAboveBackgroundId =
getResourceId(mPopupInlineErrorAboveBackgroundId,
com.android.internal.R.styleable.Theme_errorMessageAboveBackground);
} else {
mPopupInlineErrorBackgroundId = getResourceId(mPopupInlineErrorBackgroundId,
com.android.internal.R.styleable.Theme_errorMessageBackground);
}
mView.setBackgroundResource(above ? mPopupInlineErrorAboveBackgroundId :
mPopupInlineErrorBackgroundId);
}
private int getResourceId(int currentId, int index) {
if (currentId == 0) {
TypedArray styledAttributes = mView.getContext().obtainStyledAttributes(
R.styleable.Theme);
currentId = styledAttributes.getResourceId(index, 0);
styledAttributes.recycle();
}
return currentId;
}
@Override
public void update(int x, int y, int w, int h, boolean force) {
super.update(x, y, w, h, force);
boolean above = isAboveAnchor();
if (above != mAbove) {
fixDirection(above);
}
}
}
/**
* Returns the Y offset to make the pointy top of the error point
* at the middle of the error icon.
*/
private int getErrorX() {
/*
* The "25" is the distance between the point and the right edge
* of the background
*/
final float scale = getResources().getDisplayMetrics().density;
final Drawables dr = mDrawables;
return getWidth() - mPopup.getWidth() - getPaddingRight() -
(dr != null ? dr.mDrawableSizeRight : 0) / 2 + (int) (25 * scale + 0.5f);
}
/**
* Returns the Y offset to make the pointy top of the error point
* at the bottom of the error icon.
*/
private int getErrorY() {
/*
* Compound, not extended, because the icon is not clipped
* if the text height is smaller.
*/
final int compoundPaddingTop = getCompoundPaddingTop();
int vspace = mBottom - mTop - getCompoundPaddingBottom() - compoundPaddingTop;
final Drawables dr = mDrawables;
int icontop = compoundPaddingTop +
(vspace - (dr != null ? dr.mDrawableHeightRight : 0)) / 2;
/*
* The "2" is the distance between the point and the top edge
* of the background.
*/
final float scale = getResources().getDisplayMetrics().density;
return icontop + (dr != null ? dr.mDrawableHeightRight : 0) - getHeight() -
(int) (2 * scale + 0.5f);
}
private void hideError() {
if (mPopup != null) {
if (mPopup.isShowing()) {
mPopup.dismiss();
}
}
mShowErrorAfterAttach = false;
}
private void chooseSize(PopupWindow pop, CharSequence text, TextView tv) {
int wid = tv.getPaddingLeft() + tv.getPaddingRight();
int ht = tv.getPaddingTop() + tv.getPaddingBottom();
int defaultWidthInPixels = getResources().getDimensionPixelSize(
com.android.internal.R.dimen.textview_error_popup_default_width);
Layout l = new StaticLayout(text, tv.getPaint(), defaultWidthInPixels,
Layout.Alignment.ALIGN_NORMAL, 1, 0, true);
float max = 0;
for (int i = 0; i < l.getLineCount(); i++) {
max = Math.max(max, l.getLineWidth(i));
}
/*
* Now set the popup size to be big enough for the text plus the border capped
* to DEFAULT_MAX_POPUP_WIDTH
*/
pop.setWidth(wid + (int) Math.ceil(max));
pop.setHeight(ht + l.getHeight());
}
@Override
protected boolean setFrame(int l, int t, int r, int b) {
boolean result = super.setFrame(l, t, r, b);
if (mPopup != null) {
TextView tv = (TextView) mPopup.getContentView();
chooseSize(mPopup, mError, tv);
mPopup.update(this, getErrorX(), getErrorY(),
mPopup.getWidth(), mPopup.getHeight());
}
restartMarqueeIfNeeded();
return result;
}
private void restartMarqueeIfNeeded() {
if (mRestartMarquee && mEllipsize == TextUtils.TruncateAt.MARQUEE) {
mRestartMarquee = false;
startMarquee();
}
}
/**
* Sets the list of input filters that will be used if the buffer is
* Editable. Has no effect otherwise.
*
* @attr ref android.R.styleable#TextView_maxLength
*/
public void setFilters(InputFilter[] filters) {
if (filters == null) {
throw new IllegalArgumentException();
}
mFilters = filters;
if (mText instanceof Editable) {
setFilters((Editable) mText, filters);
}
}
/**
* Sets the list of input filters on the specified Editable,
* and includes mInput in the list if it is an InputFilter.
*/
private void setFilters(Editable e, InputFilter[] filters) {
if (mInput instanceof InputFilter) {
InputFilter[] nf = new InputFilter[filters.length + 1];
System.arraycopy(filters, 0, nf, 0, filters.length);
nf[filters.length] = (InputFilter) mInput;
e.setFilters(nf);
} else {
e.setFilters(filters);
}
}
/**
* Returns the current list of input filters.
*/
public InputFilter[] getFilters() {
return mFilters;
}
/////////////////////////////////////////////////////////////////////////
private int getVerticalOffset(boolean forceNormal) {
int voffset = 0;
final int gravity = mGravity & Gravity.VERTICAL_GRAVITY_MASK;
Layout l = mLayout;
if (!forceNormal && mText.length() == 0 && mHintLayout != null) {
l = mHintLayout;
}
if (gravity != Gravity.TOP) {
int boxht;
if (l == mHintLayout) {
boxht = getMeasuredHeight() - getCompoundPaddingTop() -
getCompoundPaddingBottom();
} else {
boxht = getMeasuredHeight() - getExtendedPaddingTop() -
getExtendedPaddingBottom();
}
int textht = l.getHeight();
if (textht < boxht) {
if (gravity == Gravity.BOTTOM)
voffset = boxht - textht;
else // (gravity == Gravity.CENTER_VERTICAL)
voffset = (boxht - textht) >> 1;
}
}
return voffset;
}
private int getBottomVerticalOffset(boolean forceNormal) {
int voffset = 0;
final int gravity = mGravity & Gravity.VERTICAL_GRAVITY_MASK;
Layout l = mLayout;
if (!forceNormal && mText.length() == 0 && mHintLayout != null) {
l = mHintLayout;
}
if (gravity != Gravity.BOTTOM) {
int boxht;
if (l == mHintLayout) {
boxht = getMeasuredHeight() - getCompoundPaddingTop() -
getCompoundPaddingBottom();
} else {
boxht = getMeasuredHeight() - getExtendedPaddingTop() -
getExtendedPaddingBottom();
}
int textht = l.getHeight();
if (textht < boxht) {
if (gravity == Gravity.TOP)
voffset = boxht - textht;
else // (gravity == Gravity.CENTER_VERTICAL)
voffset = (boxht - textht) >> 1;
}
}
return voffset;
}
private void invalidateCursorPath() {
if (mHighlightPathBogus) {
invalidateCursor();
} else {
final int horizontalPadding = getCompoundPaddingLeft();
final int verticalPadding = getExtendedPaddingTop() + getVerticalOffset(true);
if (mCursorCount == 0) {
synchronized (sTempRect) {
/*
* The reason for this concern about the thickness of the
* cursor and doing the floor/ceil on the coordinates is that
* some EditTexts (notably textfields in the Browser) have
* anti-aliased text where not all the characters are
* necessarily at integer-multiple locations. This should
* make sure the entire cursor gets invalidated instead of
* sometimes missing half a pixel.
*/
float thick = FloatMath.ceil(mTextPaint.getStrokeWidth());
if (thick < 1.0f) {
thick = 1.0f;
}
thick /= 2.0f;
mHighlightPath.computeBounds(sTempRect, false);
invalidate((int) FloatMath.floor(horizontalPadding + sTempRect.left - thick),
(int) FloatMath.floor(verticalPadding + sTempRect.top - thick),
(int) FloatMath.ceil(horizontalPadding + sTempRect.right + thick),
(int) FloatMath.ceil(verticalPadding + sTempRect.bottom + thick));
}
} else {
for (int i = 0; i < mCursorCount; i++) {
Rect bounds = mCursorDrawable[i].getBounds();
invalidate(bounds.left + horizontalPadding, bounds.top + verticalPadding,
bounds.right + horizontalPadding, bounds.bottom + verticalPadding);
}
}
}
}
private void invalidateCursor() {
int where = getSelectionEnd();
invalidateCursor(where, where, where);
}
private void invalidateCursor(int a, int b, int c) {
if (a >= 0 || b >= 0 || c >= 0) {
int start = Math.min(Math.min(a, b), c);
int end = Math.max(Math.max(a, b), c);
invalidateRegion(start, end, true /* Also invalidates blinking cursor */);
}
}
/**
* Invalidates the region of text enclosed between the start and end text offsets.
*
* @hide
*/
void invalidateRegion(int start, int end, boolean invalidateCursor) {
if (mLayout == null) {
invalidate();
} else {
int lineStart = mLayout.getLineForOffset(start);
int top = mLayout.getLineTop(lineStart);
// This is ridiculous, but the descent from the line above
// can hang down into the line we really want to redraw,
// so we have to invalidate part of the line above to make
// sure everything that needs to be redrawn really is.
// (But not the whole line above, because that would cause
// the same problem with the descenders on the line above it!)
if (lineStart > 0) {
top -= mLayout.getLineDescent(lineStart - 1);
}
int lineEnd;
if (start == end)
lineEnd = lineStart;
else
lineEnd = mLayout.getLineForOffset(end);
int bottom = mLayout.getLineBottom(lineEnd);
if (invalidateCursor) {
for (int i = 0; i < mCursorCount; i++) {
Rect bounds = mCursorDrawable[i].getBounds();
top = Math.min(top, bounds.top);
bottom = Math.max(bottom, bounds.bottom);
}
}
final int compoundPaddingLeft = getCompoundPaddingLeft();
final int verticalPadding = getExtendedPaddingTop() + getVerticalOffset(true);
int left, right;
if (lineStart == lineEnd && !invalidateCursor) {
left = (int) mLayout.getPrimaryHorizontal(start);
right = (int) (mLayout.getPrimaryHorizontal(end) + 1.0);
left += compoundPaddingLeft;
right += compoundPaddingLeft;
} else {
// Rectangle bounding box when the region spans several lines
left = compoundPaddingLeft;
right = getWidth() - getCompoundPaddingRight();
}
invalidate(mScrollX + left, verticalPadding + top,
mScrollX + right, verticalPadding + bottom);
}
}
private void registerForPreDraw() {
final ViewTreeObserver observer = getViewTreeObserver();
if (mPreDrawState == PREDRAW_NOT_REGISTERED) {
observer.addOnPreDrawListener(this);
mPreDrawState = PREDRAW_PENDING;
} else if (mPreDrawState == PREDRAW_DONE) {
mPreDrawState = PREDRAW_PENDING;
}
// else state is PREDRAW_PENDING, so keep waiting.
}
/**
* {@inheritDoc}
*/
public boolean onPreDraw() {
if (mPreDrawState != PREDRAW_PENDING) {
return true;
}
if (mLayout == null) {
assumeLayout();
}
boolean changed = false;
if (mMovement != null) {
/* This code also provides auto-scrolling when a cursor is moved using a
* CursorController (insertion point or selection limits).
* For selection, ensure start or end is visible depending on controller's state.
*/
int curs = getSelectionEnd();
// Do not create the controller if it is not already created.
if (mSelectionModifierCursorController != null &&
mSelectionModifierCursorController.isSelectionStartDragged()) {
curs = getSelectionStart();
}
/*
* TODO: This should really only keep the end in view if
* it already was before the text changed. I'm not sure
* of a good way to tell from here if it was.
*/
if (curs < 0 &&
(mGravity & Gravity.VERTICAL_GRAVITY_MASK) == Gravity.BOTTOM) {
curs = mText.length();
}
if (curs >= 0) {
changed = bringPointIntoView(curs);
}
} else {
changed = bringTextIntoView();
}
// This has to be checked here since:
// - onFocusChanged cannot start it when focus is given to a view with selected text (after
// a screen rotation) since layout is not yet initialized at that point.
if (mCreatedWithASelection) {
startSelectionActionMode();
mCreatedWithASelection = false;
}
// Phone specific code (there is no ExtractEditText on tablets).
// ExtractEditText does not call onFocus when it is displayed, and mHasSelectionOnFocus can
// not be set. Do the test here instead.
if (this instanceof ExtractEditText && hasSelection()) {
startSelectionActionMode();
}
mPreDrawState = PREDRAW_DONE;
return !changed;
}
@Override
protected void onAttachedToWindow() {
super.onAttachedToWindow();
mTemporaryDetach = false;
if (mShowErrorAfterAttach) {
showError();
mShowErrorAfterAttach = false;
}
final ViewTreeObserver observer = getViewTreeObserver();
// No need to create the controller.
// The get method will add the listener on controller creation.
if (mInsertionPointCursorController != null) {
observer.addOnTouchModeChangeListener(mInsertionPointCursorController);
}
if (mSelectionModifierCursorController != null) {
observer.addOnTouchModeChangeListener(mSelectionModifierCursorController);
}
// Resolve drawables as the layout direction has been resolved
resolveDrawables();
updateSpellCheckSpans(0, mText.length(), true /* create the spell checker if needed */);
}
@Override
protected void onDetachedFromWindow() {
super.onDetachedFromWindow();
final ViewTreeObserver observer = getViewTreeObserver();
if (mPreDrawState != PREDRAW_NOT_REGISTERED) {
observer.removeOnPreDrawListener(this);
mPreDrawState = PREDRAW_NOT_REGISTERED;
}
if (mError != null) {
hideError();
}
if (mBlink != null) {
mBlink.removeCallbacks(mBlink);
}
if (mInsertionPointCursorController != null) {
mInsertionPointCursorController.onDetached();
}
if (mSelectionModifierCursorController != null) {
mSelectionModifierCursorController.onDetached();
}
hideControllers();
resetResolvedDrawables();
if (mSpellChecker != null) {
mSpellChecker.closeSession();
// Forces the creation of a new SpellChecker next time this window is created.
// Will handle the cases where the settings has been changed in the meantime.
mSpellChecker = null;
}
}
@Override
protected boolean isPaddingOffsetRequired() {
return mShadowRadius != 0 || mDrawables != null;
}
@Override
protected int getLeftPaddingOffset() {
return getCompoundPaddingLeft() - mPaddingLeft +
(int) Math.min(0, mShadowDx - mShadowRadius);
}
@Override
protected int getTopPaddingOffset() {
return (int) Math.min(0, mShadowDy - mShadowRadius);
}
@Override
protected int getBottomPaddingOffset() {
return (int) Math.max(0, mShadowDy + mShadowRadius);
}
@Override
protected int getRightPaddingOffset() {
return -(getCompoundPaddingRight() - mPaddingRight) +
(int) Math.max(0, mShadowDx + mShadowRadius);
}
@Override
protected boolean verifyDrawable(Drawable who) {
final boolean verified = super.verifyDrawable(who);
if (!verified && mDrawables != null) {
return who == mDrawables.mDrawableLeft || who == mDrawables.mDrawableTop ||
who == mDrawables.mDrawableRight || who == mDrawables.mDrawableBottom ||
who == mDrawables.mDrawableStart || who == mDrawables.mDrawableEnd;
}
return verified;
}
@Override
public void jumpDrawablesToCurrentState() {
super.jumpDrawablesToCurrentState();
if (mDrawables != null) {
if (mDrawables.mDrawableLeft != null) {
mDrawables.mDrawableLeft.jumpToCurrentState();
}
if (mDrawables.mDrawableTop != null) {
mDrawables.mDrawableTop.jumpToCurrentState();
}
if (mDrawables.mDrawableRight != null) {
mDrawables.mDrawableRight.jumpToCurrentState();
}
if (mDrawables.mDrawableBottom != null) {
mDrawables.mDrawableBottom.jumpToCurrentState();
}
if (mDrawables.mDrawableStart != null) {
mDrawables.mDrawableStart.jumpToCurrentState();
}
if (mDrawables.mDrawableEnd != null) {
mDrawables.mDrawableEnd.jumpToCurrentState();
}
}
}
@Override
public void invalidateDrawable(Drawable drawable) {
if (verifyDrawable(drawable)) {
final Rect dirty = drawable.getBounds();
int scrollX = mScrollX;
int scrollY = mScrollY;
// IMPORTANT: The coordinates below are based on the coordinates computed
// for each compound drawable in onDraw(). Make sure to update each section
// accordingly.
final TextView.Drawables drawables = mDrawables;
if (drawables != null) {
if (drawable == drawables.mDrawableLeft) {
final int compoundPaddingTop = getCompoundPaddingTop();
final int compoundPaddingBottom = getCompoundPaddingBottom();
final int vspace = mBottom - mTop - compoundPaddingBottom - compoundPaddingTop;
scrollX += mPaddingLeft;
scrollY += compoundPaddingTop + (vspace - drawables.mDrawableHeightLeft) / 2;
} else if (drawable == drawables.mDrawableRight) {
final int compoundPaddingTop = getCompoundPaddingTop();
final int compoundPaddingBottom = getCompoundPaddingBottom();
final int vspace = mBottom - mTop - compoundPaddingBottom - compoundPaddingTop;
scrollX += (mRight - mLeft - mPaddingRight - drawables.mDrawableSizeRight);
scrollY += compoundPaddingTop + (vspace - drawables.mDrawableHeightRight) / 2;
} else if (drawable == drawables.mDrawableTop) {
final int compoundPaddingLeft = getCompoundPaddingLeft();
final int compoundPaddingRight = getCompoundPaddingRight();
final int hspace = mRight - mLeft - compoundPaddingRight - compoundPaddingLeft;
scrollX += compoundPaddingLeft + (hspace - drawables.mDrawableWidthTop) / 2;
scrollY += mPaddingTop;
} else if (drawable == drawables.mDrawableBottom) {
final int compoundPaddingLeft = getCompoundPaddingLeft();
final int compoundPaddingRight = getCompoundPaddingRight();
final int hspace = mRight - mLeft - compoundPaddingRight - compoundPaddingLeft;
scrollX += compoundPaddingLeft + (hspace - drawables.mDrawableWidthBottom) / 2;
scrollY += (mBottom - mTop - mPaddingBottom - drawables.mDrawableSizeBottom);
}
}
invalidate(dirty.left + scrollX, dirty.top + scrollY,
dirty.right + scrollX, dirty.bottom + scrollY);
}
}
/**
* @hide
*/
@Override
public int getResolvedLayoutDirection(Drawable who) {
if (who == null) return View.LAYOUT_DIRECTION_LTR;
if (mDrawables != null) {
final Drawables drawables = mDrawables;
if (who == drawables.mDrawableLeft || who == drawables.mDrawableRight ||
who == drawables.mDrawableTop || who == drawables.mDrawableBottom ||
who == drawables.mDrawableStart || who == drawables.mDrawableEnd) {
return getResolvedLayoutDirection();
}
}
return super.getResolvedLayoutDirection(who);
}
@Override
protected boolean onSetAlpha(int alpha) {
// Alpha is supported if and only if the drawing can be done in one pass.
// TODO text with spans with a background color currently do not respect this alpha.
if (getBackground() == null) {
mCurrentAlpha = alpha;
final Drawables dr = mDrawables;
if (dr != null) {
if (dr.mDrawableLeft != null) dr.mDrawableLeft.mutate().setAlpha(alpha);
if (dr.mDrawableTop != null) dr.mDrawableTop.mutate().setAlpha(alpha);
if (dr.mDrawableRight != null) dr.mDrawableRight.mutate().setAlpha(alpha);
if (dr.mDrawableBottom != null) dr.mDrawableBottom.mutate().setAlpha(alpha);
if (dr.mDrawableStart != null) dr.mDrawableStart.mutate().setAlpha(alpha);
if (dr.mDrawableEnd != null) dr.mDrawableEnd.mutate().setAlpha(alpha);
}
return true;
}
mCurrentAlpha = 255;
return false;
}
/**
* When a TextView is used to display a useful piece of information to the user (such as a
* contact's address), it should be made selectable, so that the user can select and copy this
* content.
*
* Use {@link #setTextIsSelectable(boolean)} or the
* {@link android.R.styleable#TextView_textIsSelectable} XML attribute to make this TextView
* selectable (text is not selectable by default).
*
* Note that this method simply returns the state of this flag. Although this flag has to be set
* in order to select text in non-editable TextView, the content of an {@link EditText} can
* always be selected, independently of the value of this flag.
*
* @return True if the text displayed in this TextView can be selected by the user.
*
* @attr ref android.R.styleable#TextView_textIsSelectable
*/
public boolean isTextSelectable() {
return mTextIsSelectable;
}
/**
* Sets whether or not (default) the content of this view is selectable by the user.
*
* Note that this methods affect the {@link #setFocusable(boolean)},
* {@link #setFocusableInTouchMode(boolean)} {@link #setClickable(boolean)} and
* {@link #setLongClickable(boolean)} states and you may want to restore these if they were
* customized.
*
* See {@link #isTextSelectable} for details.
*
* @param selectable Whether or not the content of this TextView should be selectable.
*/
public void setTextIsSelectable(boolean selectable) {
if (mTextIsSelectable == selectable) return;
mTextIsSelectable = selectable;
setFocusableInTouchMode(selectable);
setFocusable(selectable);
setClickable(selectable);
setLongClickable(selectable);
// mInputType is already EditorInfo.TYPE_NULL and mInput is null;
setMovementMethod(selectable ? ArrowKeyMovementMethod.getInstance() : null);
setText(getText(), selectable ? BufferType.SPANNABLE : BufferType.NORMAL);
// Called by setText above, but safer in case of future code changes
prepareCursorControllers();
}
@Override
protected int[] onCreateDrawableState(int extraSpace) {
final int[] drawableState;
if (mSingleLine) {
drawableState = super.onCreateDrawableState(extraSpace);
} else {
drawableState = super.onCreateDrawableState(extraSpace + 1);
mergeDrawableStates(drawableState, MULTILINE_STATE_SET);
}
if (mTextIsSelectable) {
// Disable pressed state, which was introduced when TextView was made clickable.
// Prevents text color change.
// setClickable(false) would have a similar effect, but it also disables focus changes
// and long press actions, which are both needed by text selection.
final int length = drawableState.length;
for (int i = 0; i < length; i++) {
if (drawableState[i] == R.attr.state_pressed) {
final int[] nonPressedState = new int[length - 1];
System.arraycopy(drawableState, 0, nonPressedState, 0, i);
System.arraycopy(drawableState, i + 1, nonPressedState, i, length - i - 1);
return nonPressedState;
}
}
}
return drawableState;
}
@Override
protected void onDraw(Canvas canvas) {
if (mPreDrawState == PREDRAW_DONE) {
final ViewTreeObserver observer = getViewTreeObserver();
observer.removeOnPreDrawListener(this);
mPreDrawState = PREDRAW_NOT_REGISTERED;
}
if (mCurrentAlpha <= ViewConfiguration.ALPHA_THRESHOLD_INT) return;
restartMarqueeIfNeeded();
// Draw the background for this view
super.onDraw(canvas);
final int compoundPaddingLeft = getCompoundPaddingLeft();
final int compoundPaddingTop = getCompoundPaddingTop();
final int compoundPaddingRight = getCompoundPaddingRight();
final int compoundPaddingBottom = getCompoundPaddingBottom();
final int scrollX = mScrollX;
final int scrollY = mScrollY;
final int right = mRight;
final int left = mLeft;
final int bottom = mBottom;
final int top = mTop;
final Drawables dr = mDrawables;
if (dr != null) {
/*
* Compound, not extended, because the icon is not clipped
* if the text height is smaller.
*/
int vspace = bottom - top - compoundPaddingBottom - compoundPaddingTop;
int hspace = right - left - compoundPaddingRight - compoundPaddingLeft;
// IMPORTANT: The coordinates computed are also used in invalidateDrawable()
// Make sure to update invalidateDrawable() when changing this code.
if (dr.mDrawableLeft != null) {
canvas.save();
canvas.translate(scrollX + mPaddingLeft,
scrollY + compoundPaddingTop +
(vspace - dr.mDrawableHeightLeft) / 2);
dr.mDrawableLeft.draw(canvas);
canvas.restore();
}
// IMPORTANT: The coordinates computed are also used in invalidateDrawable()
// Make sure to update invalidateDrawable() when changing this code.
if (dr.mDrawableRight != null) {
canvas.save();
canvas.translate(scrollX + right - left - mPaddingRight - dr.mDrawableSizeRight,
scrollY + compoundPaddingTop + (vspace - dr.mDrawableHeightRight) / 2);
dr.mDrawableRight.draw(canvas);
canvas.restore();
}
// IMPORTANT: The coordinates computed are also used in invalidateDrawable()
// Make sure to update invalidateDrawable() when changing this code.
if (dr.mDrawableTop != null) {
canvas.save();
canvas.translate(scrollX + compoundPaddingLeft + (hspace - dr.mDrawableWidthTop) / 2,
scrollY + mPaddingTop);
dr.mDrawableTop.draw(canvas);
canvas.restore();
}
// IMPORTANT: The coordinates computed are also used in invalidateDrawable()
// Make sure to update invalidateDrawable() when changing this code.
if (dr.mDrawableBottom != null) {
canvas.save();
canvas.translate(scrollX + compoundPaddingLeft +
(hspace - dr.mDrawableWidthBottom) / 2,
scrollY + bottom - top - mPaddingBottom - dr.mDrawableSizeBottom);
dr.mDrawableBottom.draw(canvas);
canvas.restore();
}
}
int color = mCurTextColor;
if (mLayout == null) {
assumeLayout();
}
Layout layout = mLayout;
int cursorcolor = color;
if (mHint != null && mText.length() == 0) {
if (mHintTextColor != null) {
color = mCurHintTextColor;
}
layout = mHintLayout;
}
mTextPaint.setColor(color);
if (mCurrentAlpha != 255) {
// If set, the alpha will override the color's alpha. Multiply the alphas.
mTextPaint.setAlpha((mCurrentAlpha * Color.alpha(color)) / 255);
}
mTextPaint.drawableState = getDrawableState();
canvas.save();
/* Would be faster if we didn't have to do this. Can we chop the
(displayable) text so that we don't need to do this ever?
*/
int extendedPaddingTop = getExtendedPaddingTop();
int extendedPaddingBottom = getExtendedPaddingBottom();
float clipLeft = compoundPaddingLeft + scrollX;
float clipTop = extendedPaddingTop + scrollY;
float clipRight = right - left - compoundPaddingRight + scrollX;
float clipBottom = bottom - top - extendedPaddingBottom + scrollY;
if (mShadowRadius != 0) {
clipLeft += Math.min(0, mShadowDx - mShadowRadius);
clipRight += Math.max(0, mShadowDx + mShadowRadius);
clipTop += Math.min(0, mShadowDy - mShadowRadius);
clipBottom += Math.max(0, mShadowDy + mShadowRadius);
}
canvas.clipRect(clipLeft, clipTop, clipRight, clipBottom);
int voffsetText = 0;
int voffsetCursor = 0;
// translate in by our padding
{
/* shortcircuit calling getVerticaOffset() */
if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) != Gravity.TOP) {
voffsetText = getVerticalOffset(false);
voffsetCursor = getVerticalOffset(true);
}
canvas.translate(compoundPaddingLeft, extendedPaddingTop + voffsetText);
}
final int layoutDirection = getResolvedLayoutDirection();
final int absoluteGravity = Gravity.getAbsoluteGravity(mGravity, layoutDirection);
if (mEllipsize == TextUtils.TruncateAt.MARQUEE &&
mMarqueeFadeMode != MARQUEE_FADE_SWITCH_SHOW_ELLIPSIS) {
if (!mSingleLine && getLineCount() == 1 && canMarquee() &&
(absoluteGravity & Gravity.HORIZONTAL_GRAVITY_MASK) != Gravity.LEFT) {
canvas.translate(mLayout.getLineRight(0) - (mRight - mLeft -
getCompoundPaddingLeft() - getCompoundPaddingRight()), 0.0f);
}
if (mMarquee != null && mMarquee.isRunning()) {
canvas.translate(-mMarquee.mScroll, 0.0f);
}
}
Path highlight = null;
int selStart = -1, selEnd = -1;
boolean drawCursor = false;
// If there is no movement method, then there can be no selection.
// Check that first and attempt to skip everything having to do with
// the cursor.
// XXX This is not strictly true -- a program could set the
// selection manually if it really wanted to.
if (mMovement != null && (isFocused() || isPressed())) {
selStart = getSelectionStart();
selEnd = getSelectionEnd();
if (selStart >= 0) {
if (mHighlightPath == null) mHighlightPath = new Path();
if (selStart == selEnd) {
if (isCursorVisible() &&
(SystemClock.uptimeMillis() - mShowCursor) % (2 * BLINK) < BLINK) {
if (mHighlightPathBogus) {
mHighlightPath.reset();
mLayout.getCursorPath(selStart, mHighlightPath, mText);
updateCursorsPositions();
mHighlightPathBogus = false;
}
// XXX should pass to skin instead of drawing directly
mHighlightPaint.setColor(cursorcolor);
if (mCurrentAlpha != 255) {
mHighlightPaint.setAlpha(
(mCurrentAlpha * Color.alpha(cursorcolor)) / 255);
}
mHighlightPaint.setStyle(Paint.Style.STROKE);
highlight = mHighlightPath;
drawCursor = mCursorCount > 0;
}
} else if (textCanBeSelected()) {
if (mHighlightPathBogus) {
mHighlightPath.reset();
mLayout.getSelectionPath(selStart, selEnd, mHighlightPath);
mHighlightPathBogus = false;
}
// XXX should pass to skin instead of drawing directly
mHighlightPaint.setColor(mHighlightColor);
if (mCurrentAlpha != 255) {
mHighlightPaint.setAlpha(
(mCurrentAlpha * Color.alpha(mHighlightColor)) / 255);
}
mHighlightPaint.setStyle(Paint.Style.FILL);
highlight = mHighlightPath;
}
}
}
/* Comment out until we decide what to do about animations
boolean isLinearTextOn = false;
if (currentTransformation != null) {
isLinearTextOn = mTextPaint.isLinearTextOn();
Matrix m = currentTransformation.getMatrix();
if (!m.isIdentity()) {
// mTextPaint.setLinearTextOn(true);
}
}
*/
final InputMethodState ims = mInputMethodState;
final int cursorOffsetVertical = voffsetCursor - voffsetText;
if (ims != null && ims.mBatchEditNesting == 0) {
InputMethodManager imm = InputMethodManager.peekInstance();
if (imm != null) {
if (imm.isActive(this)) {
boolean reported = false;
if (ims.mContentChanged || ims.mSelectionModeChanged) {
// We are in extract mode and the content has changed
// in some way... just report complete new text to the
// input method.
reported = reportExtractedText();
}
if (!reported && highlight != null) {
int candStart = -1;
int candEnd = -1;
if (mText instanceof Spannable) {
Spannable sp = (Spannable)mText;
candStart = EditableInputConnection.getComposingSpanStart(sp);
candEnd = EditableInputConnection.getComposingSpanEnd(sp);
}
imm.updateSelection(this, selStart, selEnd, candStart, candEnd);
}
}
if (imm.isWatchingCursor(this) && highlight != null) {
highlight.computeBounds(ims.mTmpRectF, true);
ims.mTmpOffset[0] = ims.mTmpOffset[1] = 0;
canvas.getMatrix().mapPoints(ims.mTmpOffset);
ims.mTmpRectF.offset(ims.mTmpOffset[0], ims.mTmpOffset[1]);
ims.mTmpRectF.offset(0, cursorOffsetVertical);
ims.mCursorRectInWindow.set((int)(ims.mTmpRectF.left + 0.5),
(int)(ims.mTmpRectF.top + 0.5),
(int)(ims.mTmpRectF.right + 0.5),
(int)(ims.mTmpRectF.bottom + 0.5));
imm.updateCursor(this,
ims.mCursorRectInWindow.left, ims.mCursorRectInWindow.top,
ims.mCursorRectInWindow.right, ims.mCursorRectInWindow.bottom);
}
}
}
if (mCorrectionHighlighter != null) {
mCorrectionHighlighter.draw(canvas, cursorOffsetVertical);
}
if (drawCursor) {
drawCursor(canvas, cursorOffsetVertical);
// Rely on the drawable entirely, do not draw the cursor line.
// Has to be done after the IMM related code above which relies on the highlight.
highlight = null;
}
layout.draw(canvas, highlight, mHighlightPaint, cursorOffsetVertical);
if (mMarquee != null && mMarquee.shouldDrawGhost()) {
canvas.translate((int) mMarquee.getGhostOffset(), 0.0f);
layout.draw(canvas, highlight, mHighlightPaint, cursorOffsetVertical);
}
/* Comment out until we decide what to do about animations
if (currentTransformation != null) {
mTextPaint.setLinearTextOn(isLinearTextOn);
}
*/
canvas.restore();
}
private void updateCursorsPositions() {
if (mCursorDrawableRes == 0) {
mCursorCount = 0;
return;
}
final int offset = getSelectionStart();
final int line = mLayout.getLineForOffset(offset);
final int top = mLayout.getLineTop(line);
final int bottom = mLayout.getLineTop(line + 1);
mCursorCount = mLayout.isLevelBoundary(offset) ? 2 : 1;
int middle = bottom;
if (mCursorCount == 2) {
// Similar to what is done in {@link Layout.#getCursorPath(int, Path, CharSequence)}
middle = (top + bottom) >> 1;
}
updateCursorPosition(0, top, middle, mLayout.getPrimaryHorizontal(offset));
if (mCursorCount == 2) {
updateCursorPosition(1, middle, bottom, mLayout.getSecondaryHorizontal(offset));
}
}
private void updateCursorPosition(int cursorIndex, int top, int bottom, float horizontal) {
if (mCursorDrawable[cursorIndex] == null)
mCursorDrawable[cursorIndex] = mContext.getResources().getDrawable(mCursorDrawableRes);
if (mTempRect == null) mTempRect = new Rect();
mCursorDrawable[cursorIndex].getPadding(mTempRect);
final int width = mCursorDrawable[cursorIndex].getIntrinsicWidth();
horizontal = Math.max(0.5f, horizontal - 0.5f);
final int left = (int) (horizontal) - mTempRect.left;
mCursorDrawable[cursorIndex].setBounds(left, top - mTempRect.top, left + width,
bottom + mTempRect.bottom);
}
private void drawCursor(Canvas canvas, int cursorOffsetVertical) {
final boolean translate = cursorOffsetVertical != 0;
if (translate) canvas.translate(0, cursorOffsetVertical);
for (int i = 0; i < mCursorCount; i++) {
mCursorDrawable[i].draw(canvas);
}
if (translate) canvas.translate(0, -cursorOffsetVertical);
}
@Override
public void getFocusedRect(Rect r) {
if (mLayout == null) {
super.getFocusedRect(r);
return;
}
int selEnd = getSelectionEnd();
if (selEnd < 0) {
super.getFocusedRect(r);
return;
}
int selStart = getSelectionStart();
if (selStart < 0 || selStart >= selEnd) {
int line = mLayout.getLineForOffset(selEnd);
r.top = mLayout.getLineTop(line);
r.bottom = mLayout.getLineBottom(line);
r.left = (int) mLayout.getPrimaryHorizontal(selEnd) - 2;
r.right = r.left + 4;
} else {
int lineStart = mLayout.getLineForOffset(selStart);
int lineEnd = mLayout.getLineForOffset(selEnd);
r.top = mLayout.getLineTop(lineStart);
r.bottom = mLayout.getLineBottom(lineEnd);
if (lineStart == lineEnd) {
r.left = (int) mLayout.getPrimaryHorizontal(selStart);
r.right = (int) mLayout.getPrimaryHorizontal(selEnd);
} else {
// Selection extends across multiple lines -- the focused
// rect covers the entire width.
if (mHighlightPath == null) mHighlightPath = new Path();
if (mHighlightPathBogus) {
mHighlightPath.reset();
mLayout.getSelectionPath(selStart, selEnd, mHighlightPath);
mHighlightPathBogus = false;
}
synchronized (sTempRect) {
mHighlightPath.computeBounds(sTempRect, true);
r.left = (int)sTempRect.left-1;
r.right = (int)sTempRect.right+1;
}
}
}
// Adjust for padding and gravity.
int paddingLeft = getCompoundPaddingLeft();
int paddingTop = getExtendedPaddingTop();
if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) != Gravity.TOP) {
paddingTop += getVerticalOffset(false);
}
r.offset(paddingLeft, paddingTop);
}
/**
* Return the number of lines of text, or 0 if the internal Layout has not
* been built.
*/
public int getLineCount() {
return mLayout != null ? mLayout.getLineCount() : 0;
}
/**
* Return the baseline for the specified line (0...getLineCount() - 1)
* If bounds is not null, return the top, left, right, bottom extents
* of the specified line in it. If the internal Layout has not been built,
* return 0 and set bounds to (0, 0, 0, 0)
* @param line which line to examine (0..getLineCount() - 1)
* @param bounds Optional. If not null, it returns the extent of the line
* @return the Y-coordinate of the baseline
*/
public int getLineBounds(int line, Rect bounds) {
if (mLayout == null) {
if (bounds != null) {
bounds.set(0, 0, 0, 0);
}
return 0;
}
else {
int baseline = mLayout.getLineBounds(line, bounds);
int voffset = getExtendedPaddingTop();
if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) != Gravity.TOP) {
voffset += getVerticalOffset(true);
}
if (bounds != null) {
bounds.offset(getCompoundPaddingLeft(), voffset);
}
return baseline + voffset;
}
}
@Override
public int getBaseline() {
if (mLayout == null) {
return super.getBaseline();
}
int voffset = 0;
if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) != Gravity.TOP) {
voffset = getVerticalOffset(true);
}
return getExtendedPaddingTop() + voffset + mLayout.getLineBaseline(0);
}
/**
* @hide
* @param offsetRequired
*/
@Override
protected int getFadeTop(boolean offsetRequired) {
if (mLayout == null) return 0;
int voffset = 0;
if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) != Gravity.TOP) {
voffset = getVerticalOffset(true);
}
if (offsetRequired) voffset += getTopPaddingOffset();
return getExtendedPaddingTop() + voffset;
}
/**
* @hide
* @param offsetRequired
*/
@Override
protected int getFadeHeight(boolean offsetRequired) {
return mLayout != null ? mLayout.getHeight() : 0;
}
@Override
public boolean onKeyPreIme(int keyCode, KeyEvent event) {
if (keyCode == KeyEvent.KEYCODE_BACK) {
boolean isInSelectionMode = mSelectionActionMode != null;
if (isInSelectionMode) {
if (event.getAction() == KeyEvent.ACTION_DOWN && event.getRepeatCount() == 0) {
KeyEvent.DispatcherState state = getKeyDispatcherState();
if (state != null) {
state.startTracking(event, this);
}
return true;
} else if (event.getAction() == KeyEvent.ACTION_UP) {
KeyEvent.DispatcherState state = getKeyDispatcherState();
if (state != null) {
state.handleUpEvent(event);
}
if (event.isTracking() && !event.isCanceled()) {
if (isInSelectionMode) {
stopSelectionActionMode();
return true;
}
}
}
}
}
return super.onKeyPreIme(keyCode, event);
}
@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
int which = doKeyDown(keyCode, event, null);
if (which == 0) {
// Go through default dispatching.
return super.onKeyDown(keyCode, event);
}
return true;
}
@Override
public boolean onKeyMultiple(int keyCode, int repeatCount, KeyEvent event) {
KeyEvent down = KeyEvent.changeAction(event, KeyEvent.ACTION_DOWN);
int which = doKeyDown(keyCode, down, event);
if (which == 0) {
// Go through default dispatching.
return super.onKeyMultiple(keyCode, repeatCount, event);
}
if (which == -1) {
// Consumed the whole thing.
return true;
}
repeatCount--;
// We are going to dispatch the remaining events to either the input
// or movement method. To do this, we will just send a repeated stream
// of down and up events until we have done the complete repeatCount.
// It would be nice if those interfaces had an onKeyMultiple() method,
// but adding that is a more complicated change.
KeyEvent up = KeyEvent.changeAction(event, KeyEvent.ACTION_UP);
if (which == 1) {
mInput.onKeyUp(this, (Editable)mText, keyCode, up);
while (--repeatCount > 0) {
mInput.onKeyDown(this, (Editable)mText, keyCode, down);
mInput.onKeyUp(this, (Editable)mText, keyCode, up);
}
hideErrorIfUnchanged();
} else if (which == 2) {
mMovement.onKeyUp(this, (Spannable)mText, keyCode, up);
while (--repeatCount > 0) {
mMovement.onKeyDown(this, (Spannable)mText, keyCode, down);
mMovement.onKeyUp(this, (Spannable)mText, keyCode, up);
}
}
return true;
}
/**
* Returns true if pressing ENTER in this field advances focus instead
* of inserting the character. This is true mostly in single-line fields,
* but also in mail addresses and subjects which will display on multiple
* lines but where it doesn't make sense to insert newlines.
*/
private boolean shouldAdvanceFocusOnEnter() {
if (mInput == null) {
return false;
}
if (mSingleLine) {
return true;
}
if ((mInputType & EditorInfo.TYPE_MASK_CLASS) == EditorInfo.TYPE_CLASS_TEXT) {
int variation = mInputType & EditorInfo.TYPE_MASK_VARIATION;
if (variation == EditorInfo.TYPE_TEXT_VARIATION_EMAIL_ADDRESS
|| variation == EditorInfo.TYPE_TEXT_VARIATION_EMAIL_SUBJECT) {
return true;
}
}
return false;
}
/**
* Returns true if pressing TAB in this field advances focus instead
* of inserting the character. Insert tabs only in multi-line editors.
*/
private boolean shouldAdvanceFocusOnTab() {
if (mInput != null && !mSingleLine) {
if ((mInputType & EditorInfo.TYPE_MASK_CLASS) == EditorInfo.TYPE_CLASS_TEXT) {
int variation = mInputType & EditorInfo.TYPE_MASK_VARIATION;
if (variation == EditorInfo.TYPE_TEXT_FLAG_IME_MULTI_LINE
|| variation == EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE) {
return false;
}
}
}
return true;
}
private int doKeyDown(int keyCode, KeyEvent event, KeyEvent otherEvent) {
if (!isEnabled()) {
return 0;
}
switch (keyCode) {
case KeyEvent.KEYCODE_ENTER:
if (event.hasNoModifiers()) {
// When mInputContentType is set, we know that we are
// running in a "modern" cupcake environment, so don't need
// to worry about the application trying to capture
// enter key events.
if (mInputContentType != null) {
// If there is an action listener, given them a
// chance to consume the event.
if (mInputContentType.onEditorActionListener != null &&
mInputContentType.onEditorActionListener.onEditorAction(
this, EditorInfo.IME_NULL, event)) {
mInputContentType.enterDown = true;
// We are consuming the enter key for them.
return -1;
}
}
// If our editor should move focus when enter is pressed, or
// this is a generated event from an IME action button, then
// don't let it be inserted into the text.
if ((event.getFlags() & KeyEvent.FLAG_EDITOR_ACTION) != 0
|| shouldAdvanceFocusOnEnter()) {
if (hasOnClickListeners()) {
return 0;
}
return -1;
}
}
break;
case KeyEvent.KEYCODE_DPAD_CENTER:
if (event.hasNoModifiers()) {
if (shouldAdvanceFocusOnEnter()) {
return 0;
}
}
break;
case KeyEvent.KEYCODE_TAB:
if (event.hasNoModifiers() || event.hasModifiers(KeyEvent.META_SHIFT_ON)) {
if (shouldAdvanceFocusOnTab()) {
return 0;
}
}
break;
// Has to be done on key down (and not on key up) to correctly be intercepted.
case KeyEvent.KEYCODE_BACK:
if (mSelectionActionMode != null) {
stopSelectionActionMode();
return -1;
}
break;
}
if (mInput != null) {
resetErrorChangedFlag();
boolean doDown = true;
if (otherEvent != null) {
try {
beginBatchEdit();
final boolean handled = mInput.onKeyOther(this, (Editable) mText, otherEvent);
hideErrorIfUnchanged();
doDown = false;
if (handled) {
return -1;
}
} catch (AbstractMethodError e) {
// onKeyOther was added after 1.0, so if it isn't
// implemented we need to try to dispatch as a regular down.
} finally {
endBatchEdit();
}
}
if (doDown) {
beginBatchEdit();
final boolean handled = mInput.onKeyDown(this, (Editable) mText, keyCode, event);
endBatchEdit();
hideErrorIfUnchanged();
if (handled) return 1;
}
}
// bug 650865: sometimes we get a key event before a layout.
// don't try to move around if we don't know the layout.
if (mMovement != null && mLayout != null) {
boolean doDown = true;
if (otherEvent != null) {
try {
boolean handled = mMovement.onKeyOther(this, (Spannable) mText,
otherEvent);
doDown = false;
if (handled) {
return -1;
}
} catch (AbstractMethodError e) {
// onKeyOther was added after 1.0, so if it isn't
// implemented we need to try to dispatch as a regular down.
}
}
if (doDown) {
if (mMovement.onKeyDown(this, (Spannable)mText, keyCode, event))
return 2;
}
}
return 0;
}
/**
* Resets the mErrorWasChanged flag, so that future calls to {@link #setError(CharSequence)}
* can be recorded.
* @hide
*/
public void resetErrorChangedFlag() {
/*
* Keep track of what the error was before doing the input
* so that if an input filter changed the error, we leave
* that error showing. Otherwise, we take down whatever
* error was showing when the user types something.
*/
mErrorWasChanged = false;
}
/**
* @hide
*/
public void hideErrorIfUnchanged() {
if (mError != null && !mErrorWasChanged) {
setError(null, null);
}
}
@Override
public boolean onKeyUp(int keyCode, KeyEvent event) {
if (!isEnabled()) {
return super.onKeyUp(keyCode, event);
}
switch (keyCode) {
case KeyEvent.KEYCODE_DPAD_CENTER:
if (event.hasNoModifiers()) {
/*
* If there is a click listener, just call through to
* super, which will invoke it.
*
* If there isn't a click listener, try to show the soft
* input method. (It will also
* call performClick(), but that won't do anything in
* this case.)
*/
if (!hasOnClickListeners()) {
if (mMovement != null && mText instanceof Editable
&& mLayout != null && onCheckIsTextEditor()) {
InputMethodManager imm = InputMethodManager.peekInstance();
viewClicked(imm);
if (imm != null && mSoftInputShownOnFocus) {
imm.showSoftInput(this, 0);
}
}
}
}
return super.onKeyUp(keyCode, event);
case KeyEvent.KEYCODE_ENTER:
if (event.hasNoModifiers()) {
if (mInputContentType != null
&& mInputContentType.onEditorActionListener != null
&& mInputContentType.enterDown) {
mInputContentType.enterDown = false;
if (mInputContentType.onEditorActionListener.onEditorAction(
this, EditorInfo.IME_NULL, event)) {
return true;
}
}
if ((event.getFlags() & KeyEvent.FLAG_EDITOR_ACTION) != 0
|| shouldAdvanceFocusOnEnter()) {
/*
* If there is a click listener, just call through to
* super, which will invoke it.
*
* If there isn't a click listener, try to advance focus,
* but still call through to super, which will reset the
* pressed state and longpress state. (It will also
* call performClick(), but that won't do anything in
* this case.)
*/
if (!hasOnClickListeners()) {
View v = focusSearch(FOCUS_DOWN);
if (v != null) {
if (!v.requestFocus(FOCUS_DOWN)) {
throw new IllegalStateException(
"focus search returned a view " +
"that wasn't able to take focus!");
}
/*
* Return true because we handled the key; super
* will return false because there was no click
* listener.
*/
super.onKeyUp(keyCode, event);
return true;
} else if ((event.getFlags()
& KeyEvent.FLAG_EDITOR_ACTION) != 0) {
// No target for next focus, but make sure the IME
// if this came from it.
InputMethodManager imm = InputMethodManager.peekInstance();
if (imm != null && imm.isActive(this)) {
imm.hideSoftInputFromWindow(getWindowToken(), 0);
}
}
}
}
return super.onKeyUp(keyCode, event);
}
break;
}
if (mInput != null)
if (mInput.onKeyUp(this, (Editable) mText, keyCode, event))
return true;
if (mMovement != null && mLayout != null)
if (mMovement.onKeyUp(this, (Spannable) mText, keyCode, event))
return true;
return super.onKeyUp(keyCode, event);
}
@Override public boolean onCheckIsTextEditor() {
return mInputType != EditorInfo.TYPE_NULL;
}
@Override public InputConnection onCreateInputConnection(EditorInfo outAttrs) {
if (onCheckIsTextEditor() && isEnabled()) {
if (mInputMethodState == null) {
mInputMethodState = new InputMethodState();
}
outAttrs.inputType = mInputType;
if (mInputContentType != null) {
outAttrs.imeOptions = mInputContentType.imeOptions;
outAttrs.privateImeOptions = mInputContentType.privateImeOptions;
outAttrs.actionLabel = mInputContentType.imeActionLabel;
outAttrs.actionId = mInputContentType.imeActionId;
outAttrs.extras = mInputContentType.extras;
} else {
outAttrs.imeOptions = EditorInfo.IME_NULL;
}
if (focusSearch(FOCUS_DOWN) != null) {
outAttrs.imeOptions |= EditorInfo.IME_FLAG_NAVIGATE_NEXT;
}
if (focusSearch(FOCUS_UP) != null) {
outAttrs.imeOptions |= EditorInfo.IME_FLAG_NAVIGATE_PREVIOUS;
}
if ((outAttrs.imeOptions&EditorInfo.IME_MASK_ACTION)
== EditorInfo.IME_ACTION_UNSPECIFIED) {
if ((outAttrs.imeOptions&EditorInfo.IME_FLAG_NAVIGATE_NEXT) != 0) {
// An action has not been set, but the enter key will move to
// the next focus, so set the action to that.
outAttrs.imeOptions |= EditorInfo.IME_ACTION_NEXT;
} else {
// An action has not been set, and there is no focus to move
// to, so let's just supply a "done" action.
outAttrs.imeOptions |= EditorInfo.IME_ACTION_DONE;
}
if (!shouldAdvanceFocusOnEnter()) {
outAttrs.imeOptions |= EditorInfo.IME_FLAG_NO_ENTER_ACTION;
}
}
if (isMultilineInputType(outAttrs.inputType)) {
// Multi-line text editors should always show an enter key.
outAttrs.imeOptions |= EditorInfo.IME_FLAG_NO_ENTER_ACTION;
}
outAttrs.hintText = mHint;
if (mText instanceof Editable) {
InputConnection ic = new EditableInputConnection(this);
outAttrs.initialSelStart = getSelectionStart();
outAttrs.initialSelEnd = getSelectionEnd();
outAttrs.initialCapsMode = ic.getCursorCapsMode(mInputType);
return ic;
}
}
return null;
}
/**
* If this TextView contains editable content, extract a portion of it
* based on the information in <var>request</var> in to <var>outText</var>.
* @return Returns true if the text was successfully extracted, else false.
*/
public boolean extractText(ExtractedTextRequest request,
ExtractedText outText) {
return extractTextInternal(request, EXTRACT_UNKNOWN, EXTRACT_UNKNOWN,
EXTRACT_UNKNOWN, outText);
}
static final int EXTRACT_NOTHING = -2;
static final int EXTRACT_UNKNOWN = -1;
boolean extractTextInternal(ExtractedTextRequest request,
int partialStartOffset, int partialEndOffset, int delta,
ExtractedText outText) {
final CharSequence content = mText;
if (content != null) {
if (partialStartOffset != EXTRACT_NOTHING) {
final int N = content.length();
if (partialStartOffset < 0) {
outText.partialStartOffset = outText.partialEndOffset = -1;
partialStartOffset = 0;
partialEndOffset = N;
} else {
// Now use the delta to determine the actual amount of text
// we need.
partialEndOffset += delta;
// Adjust offsets to ensure we contain full spans.
if (content instanceof Spanned) {
Spanned spanned = (Spanned)content;
Object[] spans = spanned.getSpans(partialStartOffset,
partialEndOffset, ParcelableSpan.class);
int i = spans.length;
while (i > 0) {
i--;
int j = spanned.getSpanStart(spans[i]);
if (j < partialStartOffset) partialStartOffset = j;
j = spanned.getSpanEnd(spans[i]);
if (j > partialEndOffset) partialEndOffset = j;
}
}
outText.partialStartOffset = partialStartOffset;
outText.partialEndOffset = partialEndOffset - delta;
if (partialStartOffset > N) {
partialStartOffset = N;
} else if (partialStartOffset < 0) {
partialStartOffset = 0;
}
if (partialEndOffset > N) {
partialEndOffset = N;
} else if (partialEndOffset < 0) {
partialEndOffset = 0;
}
}
if ((request.flags&InputConnection.GET_TEXT_WITH_STYLES) != 0) {
outText.text = content.subSequence(partialStartOffset,
partialEndOffset);
} else {
outText.text = TextUtils.substring(content, partialStartOffset,
partialEndOffset);
}
} else {
outText.partialStartOffset = 0;
outText.partialEndOffset = 0;
outText.text = "";
}
outText.flags = 0;
if (MetaKeyKeyListener.getMetaState(mText, MetaKeyKeyListener.META_SELECTING) != 0) {
outText.flags |= ExtractedText.FLAG_SELECTING;
}
if (mSingleLine) {
outText.flags |= ExtractedText.FLAG_SINGLE_LINE;
}
outText.startOffset = 0;
outText.selectionStart = getSelectionStart();
outText.selectionEnd = getSelectionEnd();
return true;
}
return false;
}
boolean reportExtractedText() {
final InputMethodState ims = mInputMethodState;
if (ims != null) {
final boolean contentChanged = ims.mContentChanged;
if (contentChanged || ims.mSelectionModeChanged) {
ims.mContentChanged = false;
ims.mSelectionModeChanged = false;
final ExtractedTextRequest req = mInputMethodState.mExtracting;
if (req != null) {
InputMethodManager imm = InputMethodManager.peekInstance();
if (imm != null) {
if (DEBUG_EXTRACT) Log.v(LOG_TAG, "Retrieving extracted start="
+ ims.mChangedStart + " end=" + ims.mChangedEnd
+ " delta=" + ims.mChangedDelta);
if (ims.mChangedStart < 0 && !contentChanged) {
ims.mChangedStart = EXTRACT_NOTHING;
}
if (extractTextInternal(req, ims.mChangedStart, ims.mChangedEnd,
ims.mChangedDelta, ims.mTmpExtracted)) {
if (DEBUG_EXTRACT) Log.v(LOG_TAG, "Reporting extracted start="
+ ims.mTmpExtracted.partialStartOffset
+ " end=" + ims.mTmpExtracted.partialEndOffset
+ ": " + ims.mTmpExtracted.text);
imm.updateExtractedText(this, req.token,
mInputMethodState.mTmpExtracted);
ims.mChangedStart = EXTRACT_UNKNOWN;
ims.mChangedEnd = EXTRACT_UNKNOWN;
ims.mChangedDelta = 0;
ims.mContentChanged = false;
return true;
}
}
}
}
}
return false;
}
/**
* This is used to remove all style-impacting spans from text before new
* extracted text is being replaced into it, so that we don't have any
* lingering spans applied during the replace.
*/
static void removeParcelableSpans(Spannable spannable, int start, int end) {
Object[] spans = spannable.getSpans(start, end, ParcelableSpan.class);
int i = spans.length;
while (i > 0) {
i--;
spannable.removeSpan(spans[i]);
}
}
/**
* Apply to this text view the given extracted text, as previously
* returned by {@link #extractText(ExtractedTextRequest, ExtractedText)}.
*/
public void setExtractedText(ExtractedText text) {
Editable content = getEditableText();
if (text.text != null) {
if (content == null) {
setText(text.text, TextView.BufferType.EDITABLE);
} else if (text.partialStartOffset < 0) {
removeParcelableSpans(content, 0, content.length());
content.replace(0, content.length(), text.text);
} else {
final int N = content.length();
int start = text.partialStartOffset;
if (start > N) start = N;
int end = text.partialEndOffset;
if (end > N) end = N;
removeParcelableSpans(content, start, end);
content.replace(start, end, text.text);
}
}
// Now set the selection position... make sure it is in range, to
// avoid crashes. If this is a partial update, it is possible that
// the underlying text may have changed, causing us problems here.
// Also we just don't want to trust clients to do the right thing.
Spannable sp = (Spannable)getText();
final int N = sp.length();
int start = text.selectionStart;
if (start < 0) start = 0;
else if (start > N) start = N;
int end = text.selectionEnd;
if (end < 0) end = 0;
else if (end > N) end = N;
Selection.setSelection(sp, start, end);
// Finally, update the selection mode.
if ((text.flags&ExtractedText.FLAG_SELECTING) != 0) {
MetaKeyKeyListener.startSelecting(this, sp);
} else {
MetaKeyKeyListener.stopSelecting(this, sp);
}
}
/**
* @hide
*/
public void setExtracting(ExtractedTextRequest req) {
if (mInputMethodState != null) {
mInputMethodState.mExtracting = req;
}
// This would stop a possible selection mode, but no such mode is started in case
// extracted mode will start. Some text is selected though, and will trigger an action mode
// in the extracted view.
hideControllers();
}
/**
* Called by the framework in response to a text completion from
* the current input method, provided by it calling
* {@link InputConnection#commitCompletion
* InputConnection.commitCompletion()}. The default implementation does
* nothing; text views that are supporting auto-completion should override
* this to do their desired behavior.
*
* @param text The auto complete text the user has selected.
*/
public void onCommitCompletion(CompletionInfo text) {
// intentionally empty
}
/**
* Called by the framework in response to a text auto-correction (such as fixing a typo using a
* a dictionnary) from the current input method, provided by it calling
* {@link InputConnection#commitCorrection} InputConnection.commitCorrection()}. The default
* implementation flashes the background of the corrected word to provide feedback to the user.
*
* @param info The auto correct info about the text that was corrected.
*/
public void onCommitCorrection(CorrectionInfo info) {
if (mCorrectionHighlighter == null) {
mCorrectionHighlighter = new CorrectionHighlighter();
} else {
mCorrectionHighlighter.invalidate(false);
}
mCorrectionHighlighter.highlight(info);
}
private class CorrectionHighlighter {
private final Path mPath = new Path();
private final Paint mPaint = new Paint(Paint.ANTI_ALIAS_FLAG);
private int mStart, mEnd;
private long mFadingStartTime;
private final static int FADE_OUT_DURATION = 400;
public CorrectionHighlighter() {
mPaint.setCompatibilityScaling(getResources().getCompatibilityInfo().applicationScale);
mPaint.setStyle(Paint.Style.FILL);
}
public void highlight(CorrectionInfo info) {
mStart = info.getOffset();
mEnd = mStart + info.getNewText().length();
mFadingStartTime = SystemClock.uptimeMillis();
if (mStart < 0 || mEnd < 0) {
stopAnimation();
}
}
public void draw(Canvas canvas, int cursorOffsetVertical) {
if (updatePath() && updatePaint()) {
if (cursorOffsetVertical != 0) {
canvas.translate(0, cursorOffsetVertical);
}
canvas.drawPath(mPath, mPaint);
if (cursorOffsetVertical != 0) {
canvas.translate(0, -cursorOffsetVertical);
}
invalidate(true); // TODO invalidate cursor region only
} else {
stopAnimation();
invalidate(false); // TODO invalidate cursor region only
}
}
private boolean updatePaint() {
final long duration = SystemClock.uptimeMillis() - mFadingStartTime;
if (duration > FADE_OUT_DURATION) return false;
final float coef = 1.0f - (float) duration / FADE_OUT_DURATION;
final int highlightColorAlpha = Color.alpha(mHighlightColor);
final int color = (mHighlightColor & 0x00FFFFFF) +
((int) (highlightColorAlpha * coef) << 24);
mPaint.setColor(color);
return true;
}
private boolean updatePath() {
final Layout layout = TextView.this.mLayout;
if (layout == null) return false;
// Update in case text is edited while the animation is run
final int length = mText.length();
int start = Math.min(length, mStart);
int end = Math.min(length, mEnd);
mPath.reset();
TextView.this.mLayout.getSelectionPath(start, end, mPath);
return true;
}
private void invalidate(boolean delayed) {
if (TextView.this.mLayout == null) return;
synchronized (sTempRect) {
mPath.computeBounds(sTempRect, false);
int left = getCompoundPaddingLeft();
int top = getExtendedPaddingTop() + getVerticalOffset(true);
if (delayed) {
TextView.this.postInvalidateDelayed(16, // 60 Hz update
left + (int) sTempRect.left, top + (int) sTempRect.top,
left + (int) sTempRect.right, top + (int) sTempRect.bottom);
} else {
TextView.this.postInvalidate((int) sTempRect.left, (int) sTempRect.top,
(int) sTempRect.right, (int) sTempRect.bottom);
}
}
}
private void stopAnimation() {
TextView.this.mCorrectionHighlighter = null;
}
}
public void beginBatchEdit() {
mInBatchEditControllers = true;
final InputMethodState ims = mInputMethodState;
if (ims != null) {
int nesting = ++ims.mBatchEditNesting;
if (nesting == 1) {
ims.mCursorChanged = false;
ims.mChangedDelta = 0;
if (ims.mContentChanged) {
// We already have a pending change from somewhere else,
// so turn this into a full update.
ims.mChangedStart = 0;
ims.mChangedEnd = mText.length();
} else {
ims.mChangedStart = EXTRACT_UNKNOWN;
ims.mChangedEnd = EXTRACT_UNKNOWN;
ims.mContentChanged = false;
}
onBeginBatchEdit();
}
}
}
public void endBatchEdit() {
mInBatchEditControllers = false;
final InputMethodState ims = mInputMethodState;
if (ims != null) {
int nesting = --ims.mBatchEditNesting;
if (nesting == 0) {
finishBatchEdit(ims);
}
}
}
void ensureEndedBatchEdit() {
final InputMethodState ims = mInputMethodState;
if (ims != null && ims.mBatchEditNesting != 0) {
ims.mBatchEditNesting = 0;
finishBatchEdit(ims);
}
}
void finishBatchEdit(final InputMethodState ims) {
onEndBatchEdit();
if (ims.mContentChanged || ims.mSelectionModeChanged) {
updateAfterEdit();
reportExtractedText();
} else if (ims.mCursorChanged) {
// Cheezy way to get us to report the current cursor location.
invalidateCursor();
}
}
void updateAfterEdit() {
invalidate();
int curs = getSelectionStart();
if (curs >= 0 || (mGravity & Gravity.VERTICAL_GRAVITY_MASK) == Gravity.BOTTOM) {
registerForPreDraw();
}
if (curs >= 0) {
mHighlightPathBogus = true;
makeBlink();
bringPointIntoView(curs);
}
checkForResize();
}
/**
* Called by the framework in response to a request to begin a batch
* of edit operations through a call to link {@link #beginBatchEdit()}.
*/
public void onBeginBatchEdit() {
// intentionally empty
}
/**
* Called by the framework in response to a request to end a batch
* of edit operations through a call to link {@link #endBatchEdit}.
*/
public void onEndBatchEdit() {
// intentionally empty
}
/**
* Called by the framework in response to a private command from the
* current method, provided by it calling
* {@link InputConnection#performPrivateCommand
* InputConnection.performPrivateCommand()}.
*
* @param action The action name of the command.
* @param data Any additional data for the command. This may be null.
* @return Return true if you handled the command, else false.
*/
public boolean onPrivateIMECommand(String action, Bundle data) {
return false;
}
private void nullLayouts() {
if (mLayout instanceof BoringLayout && mSavedLayout == null) {
mSavedLayout = (BoringLayout) mLayout;
}
if (mHintLayout instanceof BoringLayout && mSavedHintLayout == null) {
mSavedHintLayout = (BoringLayout) mHintLayout;
}
mSavedMarqueeModeLayout = mLayout = mHintLayout = null;
// Since it depends on the value of mLayout
prepareCursorControllers();
}
/**
* Make a new Layout based on the already-measured size of the view,
* on the assumption that it was measured correctly at some point.
*/
private void assumeLayout() {
int width = mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight();
if (width < 1) {
width = 0;
}
int physicalWidth = width;
if (mHorizontallyScrolling) {
width = VERY_WIDE;
}
makeNewLayout(width, physicalWidth, UNKNOWN_BORING, UNKNOWN_BORING,
physicalWidth, false);
}
@Override
protected void resetResolvedLayoutDirection() {
super.resetResolvedLayoutDirection();
if (mLayoutAlignment != null &&
(mTextAlign == TextAlign.VIEW_START ||
mTextAlign == TextAlign.VIEW_END)) {
mLayoutAlignment = null;
}
}
private Layout.Alignment getLayoutAlignment() {
if (mLayoutAlignment == null) {
Layout.Alignment alignment;
TextAlign textAlign = mTextAlign;
switch (textAlign) {
case INHERIT:
// fall through to gravity temporarily
// intention is to inherit value through view hierarchy.
case GRAVITY:
switch (mGravity & Gravity.RELATIVE_HORIZONTAL_GRAVITY_MASK) {
case Gravity.START:
alignment = Layout.Alignment.ALIGN_NORMAL;
break;
case Gravity.END:
alignment = Layout.Alignment.ALIGN_OPPOSITE;
break;
case Gravity.LEFT:
alignment = Layout.Alignment.ALIGN_LEFT;
break;
case Gravity.RIGHT:
alignment = Layout.Alignment.ALIGN_RIGHT;
break;
case Gravity.CENTER_HORIZONTAL:
alignment = Layout.Alignment.ALIGN_CENTER;
break;
default:
alignment = Layout.Alignment.ALIGN_NORMAL;
break;
}
break;
case TEXT_START:
alignment = Layout.Alignment.ALIGN_NORMAL;
break;
case TEXT_END:
alignment = Layout.Alignment.ALIGN_OPPOSITE;
break;
case CENTER:
alignment = Layout.Alignment.ALIGN_CENTER;
break;
case VIEW_START:
alignment = (getResolvedLayoutDirection() == LAYOUT_DIRECTION_RTL) ?
Layout.Alignment.ALIGN_RIGHT : Layout.Alignment.ALIGN_LEFT;
break;
case VIEW_END:
alignment = (getResolvedLayoutDirection() == LAYOUT_DIRECTION_RTL) ?
Layout.Alignment.ALIGN_LEFT : Layout.Alignment.ALIGN_RIGHT;
break;
default:
alignment = Layout.Alignment.ALIGN_NORMAL;
break;
}
mLayoutAlignment = alignment;
}
return mLayoutAlignment;
}
/**
* The width passed in is now the desired layout width,
* not the full view width with padding.
* {@hide}
*/
protected void makeNewLayout(int wantWidth, int hintWidth,
BoringLayout.Metrics boring,
BoringLayout.Metrics hintBoring,
int ellipsisWidth, boolean bringIntoView) {
stopMarquee();
// Update "old" cached values
mOldMaximum = mMaximum;
mOldMaxMode = mMaxMode;
mHighlightPathBogus = true;
if (wantWidth < 0) {
wantWidth = 0;
}
if (hintWidth < 0) {
hintWidth = 0;
}
Layout.Alignment alignment = getLayoutAlignment();
boolean shouldEllipsize = mEllipsize != null && mInput == null;
final boolean switchEllipsize = mEllipsize == TruncateAt.MARQUEE &&
mMarqueeFadeMode != MARQUEE_FADE_NORMAL;
TruncateAt effectiveEllipsize = mEllipsize;
if (mEllipsize == TruncateAt.MARQUEE &&
mMarqueeFadeMode == MARQUEE_FADE_SWITCH_SHOW_ELLIPSIS) {
effectiveEllipsize = TruncateAt.END_SMALL;
}
if (mTextDir == null) {
resolveTextDirection();
}
mLayout = makeSingleLayout(wantWidth, boring, ellipsisWidth, alignment, shouldEllipsize,
effectiveEllipsize, effectiveEllipsize == mEllipsize);
if (switchEllipsize) {
TruncateAt oppositeEllipsize = effectiveEllipsize == TruncateAt.MARQUEE ?
TruncateAt.END : TruncateAt.MARQUEE;
mSavedMarqueeModeLayout = makeSingleLayout(wantWidth, boring, ellipsisWidth, alignment,
shouldEllipsize, oppositeEllipsize, effectiveEllipsize != mEllipsize);
}
shouldEllipsize = mEllipsize != null;
mHintLayout = null;
if (mHint != null) {
if (shouldEllipsize) hintWidth = wantWidth;
if (hintBoring == UNKNOWN_BORING) {
hintBoring = BoringLayout.isBoring(mHint, mTextPaint, mTextDir,
mHintBoring);
if (hintBoring != null) {
mHintBoring = hintBoring;
}
}
if (hintBoring != null) {
if (hintBoring.width <= hintWidth &&
(!shouldEllipsize || hintBoring.width <= ellipsisWidth)) {
if (mSavedHintLayout != null) {
mHintLayout = mSavedHintLayout.
replaceOrMake(mHint, mTextPaint,
hintWidth, alignment, mSpacingMult, mSpacingAdd,
hintBoring, mIncludePad);
} else {
mHintLayout = BoringLayout.make(mHint, mTextPaint,
hintWidth, alignment, mSpacingMult, mSpacingAdd,
hintBoring, mIncludePad);
}
mSavedHintLayout = (BoringLayout) mHintLayout;
} else if (shouldEllipsize && hintBoring.width <= hintWidth) {
if (mSavedHintLayout != null) {
mHintLayout = mSavedHintLayout.
replaceOrMake(mHint, mTextPaint,
hintWidth, alignment, mSpacingMult, mSpacingAdd,
hintBoring, mIncludePad, mEllipsize,
ellipsisWidth);
} else {
mHintLayout = BoringLayout.make(mHint, mTextPaint,
hintWidth, alignment, mSpacingMult, mSpacingAdd,
hintBoring, mIncludePad, mEllipsize,
ellipsisWidth);
}
} else if (shouldEllipsize) {
mHintLayout = new StaticLayout(mHint,
0, mHint.length(),
mTextPaint, hintWidth, alignment, mTextDir, mSpacingMult,
mSpacingAdd, mIncludePad, mEllipsize,
ellipsisWidth, mMaxMode == LINES ? mMaximum : Integer.MAX_VALUE);
} else {
mHintLayout = new StaticLayout(mHint, mTextPaint,
hintWidth, alignment, mTextDir, mSpacingMult, mSpacingAdd,
mIncludePad);
}
} else if (shouldEllipsize) {
mHintLayout = new StaticLayout(mHint,
0, mHint.length(),
mTextPaint, hintWidth, alignment, mTextDir, mSpacingMult,
mSpacingAdd, mIncludePad, mEllipsize,
ellipsisWidth, mMaxMode == LINES ? mMaximum : Integer.MAX_VALUE);
} else {
mHintLayout = new StaticLayout(mHint, mTextPaint,
hintWidth, alignment, mTextDir, mSpacingMult, mSpacingAdd,
mIncludePad);
}
}
if (bringIntoView) {
registerForPreDraw();
}
if (mEllipsize == TextUtils.TruncateAt.MARQUEE) {
if (!compressText(ellipsisWidth)) {
final int height = mLayoutParams.height;
// If the size of the view does not depend on the size of the text, try to
// start the marquee immediately
if (height != LayoutParams.WRAP_CONTENT && height != LayoutParams.MATCH_PARENT) {
startMarquee();
} else {
// Defer the start of the marquee until we know our width (see setFrame())
mRestartMarquee = true;
}
}
}
// CursorControllers need a non-null mLayout
prepareCursorControllers();
}
private Layout makeSingleLayout(int wantWidth, BoringLayout.Metrics boring, int ellipsisWidth,
Layout.Alignment alignment, boolean shouldEllipsize, TruncateAt effectiveEllipsize,
boolean useSaved) {
Layout result = null;
if (mText instanceof Spannable) {
result = new DynamicLayout(mText, mTransformed, mTextPaint, wantWidth,
alignment, mTextDir, mSpacingMult,
mSpacingAdd, mIncludePad, mInput == null ? effectiveEllipsize : null,
ellipsisWidth);
} else {
if (boring == UNKNOWN_BORING) {
boring = BoringLayout.isBoring(mTransformed, mTextPaint, mTextDir, mBoring);
if (boring != null) {
mBoring = boring;
}
}
if (boring != null) {
if (boring.width <= wantWidth &&
(effectiveEllipsize == null || boring.width <= ellipsisWidth)) {
if (useSaved && mSavedLayout != null) {
result = mSavedLayout.replaceOrMake(mTransformed, mTextPaint,
wantWidth, alignment, mSpacingMult, mSpacingAdd,
boring, mIncludePad);
} else {
result = BoringLayout.make(mTransformed, mTextPaint,
wantWidth, alignment, mSpacingMult, mSpacingAdd,
boring, mIncludePad);
}
if (useSaved) {
mSavedLayout = (BoringLayout) result;
}
} else if (shouldEllipsize && boring.width <= wantWidth) {
if (useSaved && mSavedLayout != null) {
result = mSavedLayout.replaceOrMake(mTransformed, mTextPaint,
wantWidth, alignment, mSpacingMult, mSpacingAdd,
boring, mIncludePad, effectiveEllipsize,
ellipsisWidth);
} else {
result = BoringLayout.make(mTransformed, mTextPaint,
wantWidth, alignment, mSpacingMult, mSpacingAdd,
boring, mIncludePad, effectiveEllipsize,
ellipsisWidth);
}
} else if (shouldEllipsize) {
result = new StaticLayout(mTransformed,
0, mTransformed.length(),
mTextPaint, wantWidth, alignment, mTextDir, mSpacingMult,
mSpacingAdd, mIncludePad, effectiveEllipsize,
ellipsisWidth, mMaxMode == LINES ? mMaximum : Integer.MAX_VALUE);
} else {
result = new StaticLayout(mTransformed, mTextPaint,
wantWidth, alignment, mTextDir, mSpacingMult, mSpacingAdd,
mIncludePad);
}
} else if (shouldEllipsize) {
result = new StaticLayout(mTransformed,
0, mTransformed.length(),
mTextPaint, wantWidth, alignment, mTextDir, mSpacingMult,
mSpacingAdd, mIncludePad, effectiveEllipsize,
ellipsisWidth, mMaxMode == LINES ? mMaximum : Integer.MAX_VALUE);
} else {
result = new StaticLayout(mTransformed, mTextPaint,
wantWidth, alignment, mTextDir, mSpacingMult, mSpacingAdd,
mIncludePad);
}
}
return result;
}
private boolean compressText(float width) {
if (isHardwareAccelerated()) return false;
// Only compress the text if it hasn't been compressed by the previous pass
if (width > 0.0f && mLayout != null && getLineCount() == 1 && !mUserSetTextScaleX &&
mTextPaint.getTextScaleX() == 1.0f) {
final float textWidth = mLayout.getLineWidth(0);
final float overflow = (textWidth + 1.0f - width) / width;
if (overflow > 0.0f && overflow <= Marquee.MARQUEE_DELTA_MAX) {
mTextPaint.setTextScaleX(1.0f - overflow - 0.005f);
post(new Runnable() {
public void run() {
requestLayout();
}
});
return true;
}
}
return false;
}
private static int desired(Layout layout) {
int n = layout.getLineCount();
CharSequence text = layout.getText();
float max = 0;
// if any line was wrapped, we can't use it.
// but it's ok for the last line not to have a newline
for (int i = 0; i < n - 1; i++) {
if (text.charAt(layout.getLineEnd(i) - 1) != '\n')
return -1;
}
for (int i = 0; i < n; i++) {
max = Math.max(max, layout.getLineWidth(i));
}
return (int) FloatMath.ceil(max);
}
/**
* Set whether the TextView includes extra top and bottom padding to make
* room for accents that go above the normal ascent and descent.
* The default is true.
*
* @attr ref android.R.styleable#TextView_includeFontPadding
*/
public void setIncludeFontPadding(boolean includepad) {
if (mIncludePad != includepad) {
mIncludePad = includepad;
if (mLayout != null) {
nullLayouts();
requestLayout();
invalidate();
}
}
}
private static final BoringLayout.Metrics UNKNOWN_BORING = new BoringLayout.Metrics();
@Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
int widthMode = MeasureSpec.getMode(widthMeasureSpec);
int heightMode = MeasureSpec.getMode(heightMeasureSpec);
int widthSize = MeasureSpec.getSize(widthMeasureSpec);
int heightSize = MeasureSpec.getSize(heightMeasureSpec);
int width;
int height;
BoringLayout.Metrics boring = UNKNOWN_BORING;
BoringLayout.Metrics hintBoring = UNKNOWN_BORING;
if (mTextDir == null) {
resolveTextDirection();
}
int des = -1;
boolean fromexisting = false;
if (widthMode == MeasureSpec.EXACTLY) {
// Parent has told us how big to be. So be it.
width = widthSize;
} else {
if (mLayout != null && mEllipsize == null) {
des = desired(mLayout);
}
if (des < 0) {
boring = BoringLayout.isBoring(mTransformed, mTextPaint, mTextDir, mBoring);
if (boring != null) {
mBoring = boring;
}
} else {
fromexisting = true;
}
if (boring == null || boring == UNKNOWN_BORING) {
if (des < 0) {
des = (int) FloatMath.ceil(Layout.getDesiredWidth(mTransformed, mTextPaint));
}
width = des;
} else {
width = boring.width;
}
final Drawables dr = mDrawables;
if (dr != null) {
width = Math.max(width, dr.mDrawableWidthTop);
width = Math.max(width, dr.mDrawableWidthBottom);
}
if (mHint != null) {
int hintDes = -1;
int hintWidth;
if (mHintLayout != null && mEllipsize == null) {
hintDes = desired(mHintLayout);
}
if (hintDes < 0) {
hintBoring = BoringLayout.isBoring(mHint, mTextPaint, mHintBoring);
if (hintBoring != null) {
mHintBoring = hintBoring;
}
}
if (hintBoring == null || hintBoring == UNKNOWN_BORING) {
if (hintDes < 0) {
hintDes = (int) FloatMath.ceil(
Layout.getDesiredWidth(mHint, mTextPaint));
}
hintWidth = hintDes;
} else {
hintWidth = hintBoring.width;
}
if (hintWidth > width) {
width = hintWidth;
}
}
width += getCompoundPaddingLeft() + getCompoundPaddingRight();
if (mMaxWidthMode == EMS) {
width = Math.min(width, mMaxWidth * getLineHeight());
} else {
width = Math.min(width, mMaxWidth);
}
if (mMinWidthMode == EMS) {
width = Math.max(width, mMinWidth * getLineHeight());
} else {
width = Math.max(width, mMinWidth);
}
// Check against our minimum width
width = Math.max(width, getSuggestedMinimumWidth());
if (widthMode == MeasureSpec.AT_MOST) {
width = Math.min(widthSize, width);
}
}
int want = width - getCompoundPaddingLeft() - getCompoundPaddingRight();
int unpaddedWidth = want;
if (mHorizontallyScrolling) want = VERY_WIDE;
int hintWant = want;
int hintWidth = (mHintLayout == null) ? hintWant : mHintLayout.getWidth();
if (mLayout == null) {
makeNewLayout(want, hintWant, boring, hintBoring,
width - getCompoundPaddingLeft() - getCompoundPaddingRight(), false);
} else {
final boolean layoutChanged = (mLayout.getWidth() != want) ||
(hintWidth != hintWant) ||
(mLayout.getEllipsizedWidth() !=
width - getCompoundPaddingLeft() - getCompoundPaddingRight());
final boolean widthChanged = (mHint == null) &&
(mEllipsize == null) &&
(want > mLayout.getWidth()) &&
(mLayout instanceof BoringLayout || (fromexisting && des >= 0 && des <= want));
final boolean maximumChanged = (mMaxMode != mOldMaxMode) || (mMaximum != mOldMaximum);
if (layoutChanged || maximumChanged) {
if (!maximumChanged && widthChanged) {
mLayout.increaseWidthTo(want);
} else {
makeNewLayout(want, hintWant, boring, hintBoring,
width - getCompoundPaddingLeft() - getCompoundPaddingRight(), false);
}
} else {
// Nothing has changed
}
}
if (heightMode == MeasureSpec.EXACTLY) {
// Parent has told us how big to be. So be it.
height = heightSize;
mDesiredHeightAtMeasure = -1;
} else {
int desired = getDesiredHeight();
height = desired;
mDesiredHeightAtMeasure = desired;
if (heightMode == MeasureSpec.AT_MOST) {
height = Math.min(desired, heightSize);
}
}
int unpaddedHeight = height - getCompoundPaddingTop() - getCompoundPaddingBottom();
if (mMaxMode == LINES && mLayout.getLineCount() > mMaximum) {
unpaddedHeight = Math.min(unpaddedHeight, mLayout.getLineTop(mMaximum));
}
/*
* We didn't let makeNewLayout() register to bring the cursor into view,
* so do it here if there is any possibility that it is needed.
*/
if (mMovement != null ||
mLayout.getWidth() > unpaddedWidth ||
mLayout.getHeight() > unpaddedHeight) {
registerForPreDraw();
} else {
scrollTo(0, 0);
}
setMeasuredDimension(width, height);
}
private int getDesiredHeight() {
return Math.max(
getDesiredHeight(mLayout, true),
getDesiredHeight(mHintLayout, mEllipsize != null));
}
private int getDesiredHeight(Layout layout, boolean cap) {
if (layout == null) {
return 0;
}
int linecount = layout.getLineCount();
int pad = getCompoundPaddingTop() + getCompoundPaddingBottom();
int desired = layout.getLineTop(linecount);
final Drawables dr = mDrawables;
if (dr != null) {
desired = Math.max(desired, dr.mDrawableHeightLeft);
desired = Math.max(desired, dr.mDrawableHeightRight);
}
desired += pad;
if (mMaxMode == LINES) {
/*
* Don't cap the hint to a certain number of lines.
* (Do cap it, though, if we have a maximum pixel height.)
*/
if (cap) {
if (linecount > mMaximum) {
desired = layout.getLineTop(mMaximum);
if (dr != null) {
desired = Math.max(desired, dr.mDrawableHeightLeft);
desired = Math.max(desired, dr.mDrawableHeightRight);
}
desired += pad;
linecount = mMaximum;
}
}
} else {
desired = Math.min(desired, mMaximum);
}
if (mMinMode == LINES) {
if (linecount < mMinimum) {
desired += getLineHeight() * (mMinimum - linecount);
}
} else {
desired = Math.max(desired, mMinimum);
}
// Check against our minimum height
desired = Math.max(desired, getSuggestedMinimumHeight());
return desired;
}
/**
* Check whether a change to the existing text layout requires a
* new view layout.
*/
private void checkForResize() {
boolean sizeChanged = false;
if (mLayout != null) {
// Check if our width changed
if (mLayoutParams.width == LayoutParams.WRAP_CONTENT) {
sizeChanged = true;
invalidate();
}
// Check if our height changed
if (mLayoutParams.height == LayoutParams.WRAP_CONTENT) {
int desiredHeight = getDesiredHeight();
if (desiredHeight != this.getHeight()) {
sizeChanged = true;
}
} else if (mLayoutParams.height == LayoutParams.MATCH_PARENT) {
if (mDesiredHeightAtMeasure >= 0) {
int desiredHeight = getDesiredHeight();
if (desiredHeight != mDesiredHeightAtMeasure) {
sizeChanged = true;
}
}
}
}
if (sizeChanged) {
requestLayout();
// caller will have already invalidated
}
}
/**
* Check whether entirely new text requires a new view layout
* or merely a new text layout.
*/
private void checkForRelayout() {
// If we have a fixed width, we can just swap in a new text layout
// if the text height stays the same or if the view height is fixed.
if ((mLayoutParams.width != LayoutParams.WRAP_CONTENT ||
(mMaxWidthMode == mMinWidthMode && mMaxWidth == mMinWidth)) &&
(mHint == null || mHintLayout != null) &&
(mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight() > 0)) {
// Static width, so try making a new text layout.
int oldht = mLayout.getHeight();
int want = mLayout.getWidth();
int hintWant = mHintLayout == null ? 0 : mHintLayout.getWidth();
/*
* No need to bring the text into view, since the size is not
* changing (unless we do the requestLayout(), in which case it
* will happen at measure).
*/
makeNewLayout(want, hintWant, UNKNOWN_BORING, UNKNOWN_BORING,
mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight(),
false);
if (mEllipsize != TextUtils.TruncateAt.MARQUEE) {
// In a fixed-height view, so use our new text layout.
if (mLayoutParams.height != LayoutParams.WRAP_CONTENT &&
mLayoutParams.height != LayoutParams.MATCH_PARENT) {
invalidate();
return;
}
// Dynamic height, but height has stayed the same,
// so use our new text layout.
if (mLayout.getHeight() == oldht &&
(mHintLayout == null || mHintLayout.getHeight() == oldht)) {
invalidate();
return;
}
}
// We lose: the height has changed and we have a dynamic height.
// Request a new view layout using our new text layout.
requestLayout();
invalidate();
} else {
// Dynamic width, so we have no choice but to request a new
// view layout with a new text layout.
nullLayouts();
requestLayout();
invalidate();
}
}
/**
* Returns true if anything changed.
*/
private boolean bringTextIntoView() {
int line = 0;
if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) == Gravity.BOTTOM) {
line = mLayout.getLineCount() - 1;
}
Layout.Alignment a = mLayout.getParagraphAlignment(line);
int dir = mLayout.getParagraphDirection(line);
int hspace = mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight();
int vspace = mBottom - mTop - getExtendedPaddingTop() - getExtendedPaddingBottom();
int ht = mLayout.getHeight();
int scrollx, scrolly;
// Convert to left, center, or right alignment.
if (a == Layout.Alignment.ALIGN_NORMAL) {
a = dir == Layout.DIR_LEFT_TO_RIGHT ? Layout.Alignment.ALIGN_LEFT :
Layout.Alignment.ALIGN_RIGHT;
} else if (a == Layout.Alignment.ALIGN_OPPOSITE){
a = dir == Layout.DIR_LEFT_TO_RIGHT ? Layout.Alignment.ALIGN_RIGHT :
Layout.Alignment.ALIGN_LEFT;
}
if (a == Layout.Alignment.ALIGN_CENTER) {
/*
* Keep centered if possible, or, if it is too wide to fit,
* keep leading edge in view.
*/
int left = (int) FloatMath.floor(mLayout.getLineLeft(line));
int right = (int) FloatMath.ceil(mLayout.getLineRight(line));
if (right - left < hspace) {
scrollx = (right + left) / 2 - hspace / 2;
} else {
if (dir < 0) {
scrollx = right - hspace;
} else {
scrollx = left;
}
}
} else if (a == Layout.Alignment.ALIGN_RIGHT) {
int right = (int) FloatMath.ceil(mLayout.getLineRight(line));
scrollx = right - hspace;
} else { // a == Layout.Alignment.ALIGN_LEFT (will also be the default)
scrollx = (int) FloatMath.floor(mLayout.getLineLeft(line));
}
if (ht < vspace) {
scrolly = 0;
} else {
if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) == Gravity.BOTTOM) {
scrolly = ht - vspace;
} else {
scrolly = 0;
}
}
if (scrollx != mScrollX || scrolly != mScrollY) {
scrollTo(scrollx, scrolly);
return true;
} else {
return false;
}
}
/**
* Move the point, specified by the offset, into the view if it is needed.
* This has to be called after layout. Returns true if anything changed.
*/
public boolean bringPointIntoView(int offset) {
boolean changed = false;
if (mLayout == null) return changed;
int line = mLayout.getLineForOffset(offset);
// FIXME: Is it okay to truncate this, or should we round?
final int x = (int)mLayout.getPrimaryHorizontal(offset);
final int top = mLayout.getLineTop(line);
final int bottom = mLayout.getLineTop(line + 1);
int left = (int) FloatMath.floor(mLayout.getLineLeft(line));
int right = (int) FloatMath.ceil(mLayout.getLineRight(line));
int ht = mLayout.getHeight();
int grav;
switch (mLayout.getParagraphAlignment(line)) {
case ALIGN_LEFT:
grav = 1;
break;
case ALIGN_RIGHT:
grav = -1;
break;
case ALIGN_NORMAL:
grav = mLayout.getParagraphDirection(line);
break;
case ALIGN_OPPOSITE:
grav = -mLayout.getParagraphDirection(line);
break;
case ALIGN_CENTER:
default:
grav = 0;
break;
}
int hspace = mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight();
int vspace = mBottom - mTop - getExtendedPaddingTop() - getExtendedPaddingBottom();
int hslack = (bottom - top) / 2;
int vslack = hslack;
if (vslack > vspace / 4)
vslack = vspace / 4;
if (hslack > hspace / 4)
hslack = hspace / 4;
int hs = mScrollX;
int vs = mScrollY;
if (top - vs < vslack)
vs = top - vslack;
if (bottom - vs > vspace - vslack)
vs = bottom - (vspace - vslack);
if (ht - vs < vspace)
vs = ht - vspace;
if (0 - vs > 0)
vs = 0;
if (grav != 0) {
if (x - hs < hslack) {
hs = x - hslack;
}
if (x - hs > hspace - hslack) {
hs = x - (hspace - hslack);
}
}
if (grav < 0) {
if (left - hs > 0)
hs = left;
if (right - hs < hspace)
hs = right - hspace;
} else if (grav > 0) {
if (right - hs < hspace)
hs = right - hspace;
if (left - hs > 0)
hs = left;
} else /* grav == 0 */ {
if (right - left <= hspace) {
/*
* If the entire text fits, center it exactly.
*/
hs = left - (hspace - (right - left)) / 2;
} else if (x > right - hslack) {
/*
* If we are near the right edge, keep the right edge
* at the edge of the view.
*/
hs = right - hspace;
} else if (x < left + hslack) {
/*
* If we are near the left edge, keep the left edge
* at the edge of the view.
*/
hs = left;
} else if (left > hs) {
/*
* Is there whitespace visible at the left? Fix it if so.
*/
hs = left;
} else if (right < hs + hspace) {
/*
* Is there whitespace visible at the right? Fix it if so.
*/
hs = right - hspace;
} else {
/*
* Otherwise, float as needed.
*/
if (x - hs < hslack) {
hs = x - hslack;
}
if (x - hs > hspace - hslack) {
hs = x - (hspace - hslack);
}
}
}
if (hs != mScrollX || vs != mScrollY) {
if (mScroller == null) {
scrollTo(hs, vs);
} else {
long duration = AnimationUtils.currentAnimationTimeMillis() - mLastScroll;
int dx = hs - mScrollX;
int dy = vs - mScrollY;
if (duration > ANIMATED_SCROLL_GAP) {
mScroller.startScroll(mScrollX, mScrollY, dx, dy);
awakenScrollBars(mScroller.getDuration());
invalidate();
} else {
if (!mScroller.isFinished()) {
mScroller.abortAnimation();
}
scrollBy(dx, dy);
}
mLastScroll = AnimationUtils.currentAnimationTimeMillis();
}
changed = true;
}
if (isFocused()) {
// This offsets because getInterestingRect() is in terms of viewport coordinates, but
// requestRectangleOnScreen() is in terms of content coordinates.
if (mTempRect == null) mTempRect = new Rect();
// The offsets here are to ensure the rectangle we are using is
// within our view bounds, in case the cursor is on the far left
// or right. If it isn't withing the bounds, then this request
// will be ignored.
mTempRect.set(x - 2, top, x + 2, bottom);
getInterestingRect(mTempRect, line);
mTempRect.offset(mScrollX, mScrollY);
if (requestRectangleOnScreen(mTempRect)) {
changed = true;
}
}
return changed;
}
/**
* Move the cursor, if needed, so that it is at an offset that is visible
* to the user. This will not move the cursor if it represents more than
* one character (a selection range). This will only work if the
* TextView contains spannable text; otherwise it will do nothing.
*
* @return True if the cursor was actually moved, false otherwise.
*/
public boolean moveCursorToVisibleOffset() {
if (!(mText instanceof Spannable)) {
return false;
}
int start = getSelectionStart();
int end = getSelectionEnd();
if (start != end) {
return false;
}
// First: make sure the line is visible on screen:
int line = mLayout.getLineForOffset(start);
final int top = mLayout.getLineTop(line);
final int bottom = mLayout.getLineTop(line + 1);
final int vspace = mBottom - mTop - getExtendedPaddingTop() - getExtendedPaddingBottom();
int vslack = (bottom - top) / 2;
if (vslack > vspace / 4)
vslack = vspace / 4;
final int vs = mScrollY;
if (top < (vs+vslack)) {
line = mLayout.getLineForVertical(vs+vslack+(bottom-top));
} else if (bottom > (vspace+vs-vslack)) {
line = mLayout.getLineForVertical(vspace+vs-vslack-(bottom-top));
}
// Next: make sure the character is visible on screen:
final int hspace = mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight();
final int hs = mScrollX;
final int leftChar = mLayout.getOffsetForHorizontal(line, hs);
final int rightChar = mLayout.getOffsetForHorizontal(line, hspace+hs);
// line might contain bidirectional text
final int lowChar = leftChar < rightChar ? leftChar : rightChar;
final int highChar = leftChar > rightChar ? leftChar : rightChar;
int newStart = start;
if (newStart < lowChar) {
newStart = lowChar;
} else if (newStart > highChar) {
newStart = highChar;
}
if (newStart != start) {
Selection.setSelection((Spannable)mText, newStart);
return true;
}
return false;
}
@Override
public void computeScroll() {
if (mScroller != null) {
if (mScroller.computeScrollOffset()) {
mScrollX = mScroller.getCurrX();
mScrollY = mScroller.getCurrY();
invalidateParentCaches();
postInvalidate(); // So we draw again
}
}
}
private void getInterestingRect(Rect r, int line) {
convertFromViewportToContentCoordinates(r);
// Rectangle can can be expanded on first and last line to take
// padding into account.
// TODO Take left/right padding into account too?
if (line == 0) r.top -= getExtendedPaddingTop();
if (line == mLayout.getLineCount() - 1) r.bottom += getExtendedPaddingBottom();
}
private void convertFromViewportToContentCoordinates(Rect r) {
final int horizontalOffset = viewportToContentHorizontalOffset();
r.left += horizontalOffset;
r.right += horizontalOffset;
final int verticalOffset = viewportToContentVerticalOffset();
r.top += verticalOffset;
r.bottom += verticalOffset;
}
private int viewportToContentHorizontalOffset() {
return getCompoundPaddingLeft() - mScrollX;
}
private int viewportToContentVerticalOffset() {
int offset = getExtendedPaddingTop() - mScrollY;
if ((mGravity & Gravity.VERTICAL_GRAVITY_MASK) != Gravity.TOP) {
offset += getVerticalOffset(false);
}
return offset;
}
@Override
public void debug(int depth) {
super.debug(depth);
String output = debugIndent(depth);
output += "frame={" + mLeft + ", " + mTop + ", " + mRight
+ ", " + mBottom + "} scroll={" + mScrollX + ", " + mScrollY
+ "} ";
if (mText != null) {
output += "mText=\"" + mText + "\" ";
if (mLayout != null) {
output += "mLayout width=" + mLayout.getWidth()
+ " height=" + mLayout.getHeight();
}
} else {
output += "mText=NULL";
}
Log.d(VIEW_LOG_TAG, output);
}
/**
* Convenience for {@link Selection#getSelectionStart}.
*/
@ViewDebug.ExportedProperty(category = "text")
public int getSelectionStart() {
return Selection.getSelectionStart(getText());
}
/**
* Convenience for {@link Selection#getSelectionEnd}.
*/
@ViewDebug.ExportedProperty(category = "text")
public int getSelectionEnd() {
return Selection.getSelectionEnd(getText());
}
/**
* Return true iff there is a selection inside this text view.
*/
public boolean hasSelection() {
final int selectionStart = getSelectionStart();
final int selectionEnd = getSelectionEnd();
return selectionStart >= 0 && selectionStart != selectionEnd;
}
/**
* Sets the properties of this field (lines, horizontally scrolling,
* transformation method) to be for a single-line input.
*
* @attr ref android.R.styleable#TextView_singleLine
*/
public void setSingleLine() {
setSingleLine(true);
}
/**
* Sets the properties of this field to transform input to ALL CAPS
* display. This may use a "small caps" formatting if available.
* This setting will be ignored if this field is editable or selectable.
*
* This call replaces the current transformation method. Disabling this
* will not necessarily restore the previous behavior from before this
* was enabled.
*
* @see #setTransformationMethod(TransformationMethod)
* @attr ref android.R.styleable#TextView_textAllCaps
*/
public void setAllCaps(boolean allCaps) {
if (allCaps) {
setTransformationMethod(new AllCapsTransformationMethod(getContext()));
} else {
setTransformationMethod(null);
}
}
/**
* If true, sets the properties of this field (number of lines, horizontally scrolling,
* transformation method) to be for a single-line input; if false, restores these to the default
* conditions.
*
* Note that the default conditions are not necessarily those that were in effect prior this
* method, and you may want to reset these properties to your custom values.
*
* @attr ref android.R.styleable#TextView_singleLine
*/
@android.view.RemotableViewMethod
public void setSingleLine(boolean singleLine) {
// Could be used, but may break backward compatibility.
// if (mSingleLine == singleLine) return;
setInputTypeSingleLine(singleLine);
applySingleLine(singleLine, true, true);
}
/**
* Adds or remove the EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE on the mInputType.
* @param singleLine
*/
private void setInputTypeSingleLine(boolean singleLine) {
if ((mInputType & EditorInfo.TYPE_MASK_CLASS) == EditorInfo.TYPE_CLASS_TEXT) {
if (singleLine) {
mInputType &= ~EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE;
} else {
mInputType |= EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE;
}
}
}
private void applySingleLine(boolean singleLine, boolean applyTransformation,
boolean changeMaxLines) {
mSingleLine = singleLine;
if (singleLine) {
setLines(1);
setHorizontallyScrolling(true);
if (applyTransformation) {
setTransformationMethod(SingleLineTransformationMethod.getInstance());
}
} else {
if (changeMaxLines) {
setMaxLines(Integer.MAX_VALUE);
}
setHorizontallyScrolling(false);
if (applyTransformation) {
setTransformationMethod(null);
}
}
}
/**
* Causes words in the text that are longer than the view is wide
* to be ellipsized instead of broken in the middle. You may also
* want to {@link #setSingleLine} or {@link #setHorizontallyScrolling}
* to constrain the text to a single line. Use <code>null</code>
* to turn off ellipsizing.
*
* If {@link #setMaxLines} has been used to set two or more lines,
* {@link android.text.TextUtils.TruncateAt#END} and
* {@link android.text.TextUtils.TruncateAt#MARQUEE}* are only supported
* (other ellipsizing types will not do anything).
*
* @attr ref android.R.styleable#TextView_ellipsize
*/
public void setEllipsize(TextUtils.TruncateAt where) {
// TruncateAt is an enum. != comparison is ok between these singleton objects.
if (mEllipsize != where) {
mEllipsize = where;
if (mLayout != null) {
nullLayouts();
requestLayout();
invalidate();
}
}
}
/**
* Sets how many times to repeat the marquee animation. Only applied if the
* TextView has marquee enabled. Set to -1 to repeat indefinitely.
*
* @attr ref android.R.styleable#TextView_marqueeRepeatLimit
*/
public void setMarqueeRepeatLimit(int marqueeLimit) {
mMarqueeRepeatLimit = marqueeLimit;
}
/**
* Returns where, if anywhere, words that are longer than the view
* is wide should be ellipsized.
*/
@ViewDebug.ExportedProperty
public TextUtils.TruncateAt getEllipsize() {
return mEllipsize;
}
/**
* Set the TextView so that when it takes focus, all the text is
* selected.
*
* @attr ref android.R.styleable#TextView_selectAllOnFocus
*/
@android.view.RemotableViewMethod
public void setSelectAllOnFocus(boolean selectAllOnFocus) {
mSelectAllOnFocus = selectAllOnFocus;
if (selectAllOnFocus && !(mText instanceof Spannable)) {
setText(mText, BufferType.SPANNABLE);
}
}
/**
* Set whether the cursor is visible. The default is true.
*
* @attr ref android.R.styleable#TextView_cursorVisible
*/
@android.view.RemotableViewMethod
public void setCursorVisible(boolean visible) {
if (mCursorVisible != visible) {
mCursorVisible = visible;
invalidate();
makeBlink();
// InsertionPointCursorController depends on mCursorVisible
prepareCursorControllers();
}
}
private boolean isCursorVisible() {
return mCursorVisible && isTextEditable();
}
private boolean canMarquee() {
int width = (mRight - mLeft - getCompoundPaddingLeft() - getCompoundPaddingRight());
return width > 0 && (mLayout.getLineWidth(0) > width ||
(mMarqueeFadeMode != MARQUEE_FADE_NORMAL && mSavedMarqueeModeLayout != null &&
mSavedMarqueeModeLayout.getLineWidth(0) > width));
}
private void startMarquee() {
// Do not ellipsize EditText
if (mInput != null) return;
if (compressText(getWidth() - getCompoundPaddingLeft() - getCompoundPaddingRight())) {
return;
}
if ((mMarquee == null || mMarquee.isStopped()) && (isFocused() || isSelected()) &&
getLineCount() == 1 && canMarquee()) {
if (mMarqueeFadeMode == MARQUEE_FADE_SWITCH_SHOW_ELLIPSIS) {
mMarqueeFadeMode = MARQUEE_FADE_SWITCH_SHOW_FADE;
final Layout tmp = mLayout;
mLayout = mSavedMarqueeModeLayout;
mSavedMarqueeModeLayout = tmp;
setHorizontalFadingEdgeEnabled(true);
requestLayout();
invalidate();
}
if (mMarquee == null) mMarquee = new Marquee(this);
mMarquee.start(mMarqueeRepeatLimit);
}
}
private void stopMarquee() {
if (mMarquee != null && !mMarquee.isStopped()) {
mMarquee.stop();
}
if (mMarqueeFadeMode == MARQUEE_FADE_SWITCH_SHOW_FADE) {
mMarqueeFadeMode = MARQUEE_FADE_SWITCH_SHOW_ELLIPSIS;
final Layout tmp = mSavedMarqueeModeLayout;
mSavedMarqueeModeLayout = mLayout;
mLayout = tmp;
setHorizontalFadingEdgeEnabled(false);
requestLayout();
invalidate();
}
}
private void startStopMarquee(boolean start) {
if (mEllipsize == TextUtils.TruncateAt.MARQUEE) {
if (start) {
startMarquee();
} else {
stopMarquee();
}
}
}
private static final class Marquee extends Handler {
// TODO: Add an option to configure this
private static final float MARQUEE_DELTA_MAX = 0.07f;
private static final int MARQUEE_DELAY = 1200;
private static final int MARQUEE_RESTART_DELAY = 1200;
private static final int MARQUEE_RESOLUTION = 1000 / 30;
private static final int MARQUEE_PIXELS_PER_SECOND = 30;
private static final byte MARQUEE_STOPPED = 0x0;
private static final byte MARQUEE_STARTING = 0x1;
private static final byte MARQUEE_RUNNING = 0x2;
private static final int MESSAGE_START = 0x1;
private static final int MESSAGE_TICK = 0x2;
private static final int MESSAGE_RESTART = 0x3;
private final WeakReference<TextView> mView;
private byte mStatus = MARQUEE_STOPPED;
private final float mScrollUnit;
private float mMaxScroll;
float mMaxFadeScroll;
private float mGhostStart;
private float mGhostOffset;
private float mFadeStop;
private int mRepeatLimit;
float mScroll;
Marquee(TextView v) {
final float density = v.getContext().getResources().getDisplayMetrics().density;
mScrollUnit = (MARQUEE_PIXELS_PER_SECOND * density) / MARQUEE_RESOLUTION;
mView = new WeakReference<TextView>(v);
}
@Override
public void handleMessage(Message msg) {
switch (msg.what) {
case MESSAGE_START:
mStatus = MARQUEE_RUNNING;
tick();
break;
case MESSAGE_TICK:
tick();
break;
case MESSAGE_RESTART:
if (mStatus == MARQUEE_RUNNING) {
if (mRepeatLimit >= 0) {
mRepeatLimit--;
}
start(mRepeatLimit);
}
break;
}
}
void tick() {
if (mStatus != MARQUEE_RUNNING) {
return;
}
removeMessages(MESSAGE_TICK);
final TextView textView = mView.get();
if (textView != null && (textView.isFocused() || textView.isSelected())) {
mScroll += mScrollUnit;
if (mScroll > mMaxScroll) {
mScroll = mMaxScroll;
sendEmptyMessageDelayed(MESSAGE_RESTART, MARQUEE_RESTART_DELAY);
} else {
sendEmptyMessageDelayed(MESSAGE_TICK, MARQUEE_RESOLUTION);
}
textView.invalidate();
}
}
void stop() {
mStatus = MARQUEE_STOPPED;
removeMessages(MESSAGE_START);
removeMessages(MESSAGE_RESTART);
removeMessages(MESSAGE_TICK);
resetScroll();
}
private void resetScroll() {
mScroll = 0.0f;
final TextView textView = mView.get();
if (textView != null) textView.invalidate();
}
void start(int repeatLimit) {
if (repeatLimit == 0) {
stop();
return;
}
mRepeatLimit = repeatLimit;
final TextView textView = mView.get();
if (textView != null && textView.mLayout != null) {
mStatus = MARQUEE_STARTING;
mScroll = 0.0f;
final int textWidth = textView.getWidth() - textView.getCompoundPaddingLeft() -
textView.getCompoundPaddingRight();
final float lineWidth = textView.mLayout.getLineWidth(0);
final float gap = textWidth / 3.0f;
mGhostStart = lineWidth - textWidth + gap;
mMaxScroll = mGhostStart + textWidth;
mGhostOffset = lineWidth + gap;
mFadeStop = lineWidth + textWidth / 6.0f;
mMaxFadeScroll = mGhostStart + lineWidth + lineWidth;
textView.invalidate();
sendEmptyMessageDelayed(MESSAGE_START, MARQUEE_DELAY);
}
}
float getGhostOffset() {
return mGhostOffset;
}
boolean shouldDrawLeftFade() {
return mScroll <= mFadeStop;
}
boolean shouldDrawGhost() {
return mStatus == MARQUEE_RUNNING && mScroll > mGhostStart;
}
boolean isRunning() {
return mStatus == MARQUEE_RUNNING;
}
boolean isStopped() {
return mStatus == MARQUEE_STOPPED;
}
}
/**
* This method is called when the text is changed, in case any subclasses
* would like to know.
*
* Within <code>text</code>, the <code>lengthAfter</code> characters
* beginning at <code>start</code> have just replaced old text that had
* length <code>lengthBefore</code>. It is an error to attempt to make
* changes to <code>text</code> from this callback.
*
* @param text The text the TextView is displaying
* @param start The offset of the start of the range of the text that was
* modified
* @param lengthBefore The length of the former text that has been replaced
* @param lengthAfter The length of the replacement modified text
*/
protected void onTextChanged(CharSequence text, int start, int lengthBefore, int lengthAfter) {
// intentionally empty, template pattern method can be overridden by subclasses
}
/**
* This method is called when the selection has changed, in case any
* subclasses would like to know.
*
* @param selStart The new selection start location.
* @param selEnd The new selection end location.
*/
protected void onSelectionChanged(int selStart, int selEnd) {
sendAccessibilityEvent(AccessibilityEvent.TYPE_VIEW_TEXT_SELECTION_CHANGED);
}
/**
* Adds a TextWatcher to the list of those whose methods are called
* whenever this TextView's text changes.
* <p>
* In 1.0, the {@link TextWatcher#afterTextChanged} method was erroneously
* not called after {@link #setText} calls. Now, doing {@link #setText}
* if there are any text changed listeners forces the buffer type to
* Editable if it would not otherwise be and does call this method.
*/
public void addTextChangedListener(TextWatcher watcher) {
if (mListeners == null) {
mListeners = new ArrayList<TextWatcher>();
}
mListeners.add(watcher);
}
/**
* Removes the specified TextWatcher from the list of those whose
* methods are called
* whenever this TextView's text changes.
*/
public void removeTextChangedListener(TextWatcher watcher) {
if (mListeners != null) {
int i = mListeners.indexOf(watcher);
if (i >= 0) {
mListeners.remove(i);
}
}
}
private void sendBeforeTextChanged(CharSequence text, int start, int before, int after) {
if (mListeners != null) {
final ArrayList<TextWatcher> list = mListeners;
final int count = list.size();
for (int i = 0; i < count; i++) {
list.get(i).beforeTextChanged(text, start, before, after);
}
}
// The spans that are inside or intersect the modified region no longer make sense
removeIntersectingSpans(start, start + before, SpellCheckSpan.class);
removeIntersectingSpans(start, start + before, SuggestionSpan.class);
}
// Removes all spans that are inside or actually overlap the start..end range
private <T> void removeIntersectingSpans(int start, int end, Class<T> type) {
if (!(mText instanceof Editable)) return;
Editable text = (Editable) mText;
T[] spans = text.getSpans(start, end, type);
final int length = spans.length;
for (int i = 0; i < length; i++) {
final int s = text.getSpanStart(spans[i]);
final int e = text.getSpanEnd(spans[i]);
// Spans that are adjacent to the edited region will be handled in
// updateSpellCheckSpans. Result depends on what will be added (space or text)
if (e == start || s == end) break;
text.removeSpan(spans[i]);
}
}
/**
* Not private so it can be called from an inner class without going
* through a thunk.
*/
void sendOnTextChanged(CharSequence text, int start, int before, int after) {
if (mListeners != null) {
final ArrayList<TextWatcher> list = mListeners;
final int count = list.size();
for (int i = 0; i < count; i++) {
list.get(i).onTextChanged(text, start, before, after);
}
}
updateSpellCheckSpans(start, start + after, false);
// Hide the controllers as soon as text is modified (typing, procedural...)
// We do not hide the span controllers, since they can be added when a new text is
// inserted into the text view (voice IME).
hideCursorControllers();
}
/**
* Not private so it can be called from an inner class without going
* through a thunk.
*/
void sendAfterTextChanged(Editable text) {
if (mListeners != null) {
final ArrayList<TextWatcher> list = mListeners;
final int count = list.size();
for (int i = 0; i < count; i++) {
list.get(i).afterTextChanged(text);
}
}
}
/**
* Not private so it can be called from an inner class without going
* through a thunk.
*/
void handleTextChanged(CharSequence buffer, int start, int before, int after) {
final InputMethodState ims = mInputMethodState;
if (ims == null || ims.mBatchEditNesting == 0) {
updateAfterEdit();
}
if (ims != null) {
ims.mContentChanged = true;
if (ims.mChangedStart < 0) {
ims.mChangedStart = start;
ims.mChangedEnd = start+before;
} else {
ims.mChangedStart = Math.min(ims.mChangedStart, start);
ims.mChangedEnd = Math.max(ims.mChangedEnd, start + before - ims.mChangedDelta);
}
ims.mChangedDelta += after-before;
}
sendOnTextChanged(buffer, start, before, after);
onTextChanged(buffer, start, before, after);
}
/**
* Not private so it can be called from an inner class without going
* through a thunk.
*/
void spanChange(Spanned buf, Object what, int oldStart, int newStart, int oldEnd, int newEnd) {
// XXX Make the start and end move together if this ends up
// spending too much time invalidating.
boolean selChanged = false;
int newSelStart=-1, newSelEnd=-1;
final InputMethodState ims = mInputMethodState;
if (what == Selection.SELECTION_END) {
mHighlightPathBogus = true;
selChanged = true;
newSelEnd = newStart;
if (!isFocused()) {
mSelectionMoved = true;
}
if (oldStart >= 0 || newStart >= 0) {
invalidateCursor(Selection.getSelectionStart(buf), oldStart, newStart);
registerForPreDraw();
makeBlink();
}
}
if (what == Selection.SELECTION_START) {
mHighlightPathBogus = true;
selChanged = true;
newSelStart = newStart;
if (!isFocused()) {
mSelectionMoved = true;
}
if (oldStart >= 0 || newStart >= 0) {
int end = Selection.getSelectionEnd(buf);
invalidateCursor(end, oldStart, newStart);
}
}
if (selChanged) {
if ((buf.getSpanFlags(what)&Spanned.SPAN_INTERMEDIATE) == 0) {
if (newSelStart < 0) {
newSelStart = Selection.getSelectionStart(buf);
}
if (newSelEnd < 0) {
newSelEnd = Selection.getSelectionEnd(buf);
}
onSelectionChanged(newSelStart, newSelEnd);
}
}
if (what instanceof UpdateAppearance || what instanceof ParagraphStyle) {
if (ims == null || ims.mBatchEditNesting == 0) {
invalidate();
mHighlightPathBogus = true;
checkForResize();
} else {
ims.mContentChanged = true;
}
}
if (MetaKeyKeyListener.isMetaTracker(buf, what)) {
mHighlightPathBogus = true;
if (ims != null && MetaKeyKeyListener.isSelectingMetaTracker(buf, what)) {
ims.mSelectionModeChanged = true;
}
if (Selection.getSelectionStart(buf) >= 0) {
if (ims == null || ims.mBatchEditNesting == 0) {
invalidateCursor();
} else {
ims.mCursorChanged = true;
}
}
}
if (what instanceof ParcelableSpan) {
// If this is a span that can be sent to a remote process,
// the current extract editor would be interested in it.
if (ims != null && ims.mExtracting != null) {
if (ims.mBatchEditNesting != 0) {
if (oldStart >= 0) {
if (ims.mChangedStart > oldStart) {
ims.mChangedStart = oldStart;
}
if (ims.mChangedStart > oldEnd) {
ims.mChangedStart = oldEnd;
}
}
if (newStart >= 0) {
if (ims.mChangedStart > newStart) {
ims.mChangedStart = newStart;
}
if (ims.mChangedStart > newEnd) {
ims.mChangedStart = newEnd;
}
}
} else {
if (DEBUG_EXTRACT) Log.v(LOG_TAG, "Span change outside of batch: "
+ oldStart + "-" + oldEnd + ","
+ newStart + "-" + newEnd + what);
ims.mContentChanged = true;
}
}
}
if (mSpellChecker != null && newStart < 0 && what instanceof SpellCheckSpan) {
mSpellChecker.removeSpellCheckSpan((SpellCheckSpan) what);
}
}
/**
* Create new SpellCheckSpans on the modified region.
*/
private void updateSpellCheckSpans(int start, int end, boolean createSpellChecker) {
if (isTextEditable() && isSuggestionsEnabled() && !(this instanceof ExtractEditText)) {
if (mSpellChecker == null && createSpellChecker) {
mSpellChecker = new SpellChecker(this);
}
if (mSpellChecker != null) {
mSpellChecker.spellCheck(start, end);
}
}
}
/**
* Controls the {@link EasyEditSpan} monitoring when it is added, and when the related
* pop-up should be displayed.
*/
private class EasyEditSpanController {
private static final int DISPLAY_TIMEOUT_MS = 3000; // 3 secs
private EasyEditPopupWindow mPopupWindow;
private EasyEditSpan mEasyEditSpan;
private Runnable mHidePopup;
private void hide() {
if (mPopupWindow != null) {
mPopupWindow.hide();
TextView.this.removeCallbacks(mHidePopup);
}
removeSpans(mText);
mEasyEditSpan = null;
}
/**
* Monitors the changes in the text.
*
* <p>{@link ChangeWatcher#onSpanAdded(Spannable, Object, int, int)} cannot be used,
* as the notifications are not sent when a spannable (with spans) is inserted.
*/
public void onTextChange(CharSequence buffer) {
adjustSpans(mText);
if (getWindowVisibility() != View.VISIBLE) {
// The window is not visible yet, ignore the text change.
return;
}
if (mLayout == null) {
// The view has not been layout yet, ignore the text change
return;
}
InputMethodManager imm = InputMethodManager.peekInstance();
if (!(TextView.this instanceof ExtractEditText)
&& imm != null && imm.isFullscreenMode()) {
// The input is in extract mode. We do not have to handle the easy edit in the
// original TextView, as the ExtractEditText will do
return;
}
// Remove the current easy edit span, as the text changed, and remove the pop-up
// (if any)
if (mEasyEditSpan != null) {
if (mText instanceof Spannable) {
((Spannable) mText).removeSpan(mEasyEditSpan);
}
mEasyEditSpan = null;
}
if (mPopupWindow != null && mPopupWindow.isShowing()) {
mPopupWindow.hide();
}
// Display the new easy edit span (if any).
if (buffer instanceof Spanned) {
mEasyEditSpan = getSpan((Spanned) buffer);
if (mEasyEditSpan != null) {
if (mPopupWindow == null) {
mPopupWindow = new EasyEditPopupWindow();
mHidePopup = new Runnable() {
@Override
public void run() {
hide();
}
};
}
mPopupWindow.show(mEasyEditSpan);
TextView.this.removeCallbacks(mHidePopup);
TextView.this.postDelayed(mHidePopup, DISPLAY_TIMEOUT_MS);
}
}
}
/**
* Adjusts the spans by removing all of them except the last one.
*/
private void adjustSpans(CharSequence buffer) {
// This method enforces that only one easy edit span is attached to the text.
// A better way to enforce this would be to listen for onSpanAdded, but this method
// cannot be used in this scenario as no notification is triggered when a text with
// spans is inserted into a text.
if (buffer instanceof Spannable) {
Spannable spannable = (Spannable) buffer;
EasyEditSpan[] spans = spannable.getSpans(0, spannable.length(),
EasyEditSpan.class);
for (int i = 0; i < spans.length - 1; i++) {
spannable.removeSpan(spans[i]);
}
}
}
/**
* Removes all the {@link EasyEditSpan} currently attached.
*/
private void removeSpans(CharSequence buffer) {
if (buffer instanceof Spannable) {
Spannable spannable = (Spannable) buffer;
EasyEditSpan[] spans = spannable.getSpans(0, spannable.length(),
EasyEditSpan.class);
for (int i = 0; i < spans.length; i++) {
spannable.removeSpan(spans[i]);
}
}
}
private EasyEditSpan getSpan(Spanned spanned) {
EasyEditSpan[] easyEditSpans = spanned.getSpans(0, spanned.length(),
EasyEditSpan.class);
if (easyEditSpans.length == 0) {
return null;
} else {
return easyEditSpans[0];
}
}
}
/**
* Displays the actions associated to an {@link EasyEditSpan}. The pop-up is controlled
* by {@link EasyEditSpanController}.
*/
private class EasyEditPopupWindow extends PinnedPopupWindow
implements OnClickListener {
private static final int POPUP_TEXT_LAYOUT =
com.android.internal.R.layout.text_edit_action_popup_text;
private TextView mDeleteTextView;
private EasyEditSpan mEasyEditSpan;
@Override
protected void createPopupWindow() {
mPopupWindow = new PopupWindow(TextView.this.mContext, null,
com.android.internal.R.attr.textSelectHandleWindowStyle);
mPopupWindow.setInputMethodMode(PopupWindow.INPUT_METHOD_NOT_NEEDED);
mPopupWindow.setClippingEnabled(true);
}
@Override
protected void initContentView() {
LinearLayout linearLayout = new LinearLayout(TextView.this.getContext());
linearLayout.setOrientation(LinearLayout.HORIZONTAL);
mContentView = linearLayout;
mContentView.setBackgroundResource(
com.android.internal.R.drawable.text_edit_side_paste_window);
LayoutInflater inflater = (LayoutInflater)TextView.this.mContext.
getSystemService(Context.LAYOUT_INFLATER_SERVICE);
LayoutParams wrapContent = new LayoutParams(
ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT);
mDeleteTextView = (TextView) inflater.inflate(POPUP_TEXT_LAYOUT, null);
mDeleteTextView.setLayoutParams(wrapContent);
mDeleteTextView.setText(com.android.internal.R.string.delete);
mDeleteTextView.setOnClickListener(this);
mContentView.addView(mDeleteTextView);
}
public void show(EasyEditSpan easyEditSpan) {
mEasyEditSpan = easyEditSpan;
super.show();
}
@Override
public void onClick(View view) {
if (view == mDeleteTextView) {
Editable editable = (Editable) mText;
int start = editable.getSpanStart(mEasyEditSpan);
int end = editable.getSpanEnd(mEasyEditSpan);
if (start >= 0 && end >= 0) {
deleteText_internal(start, end);
}
}
}
@Override
protected int getTextOffset() {
// Place the pop-up at the end of the span
Editable editable = (Editable) mText;
return editable.getSpanEnd(mEasyEditSpan);
}
@Override
protected int getVerticalLocalPosition(int line) {
return mLayout.getLineBottom(line);
}
@Override
protected int clipVertically(int positionY) {
// As we display the pop-up below the span, no vertical clipping is required.
return positionY;
}
}
private class ChangeWatcher implements TextWatcher, SpanWatcher {
private CharSequence mBeforeText;
private EasyEditSpanController mEasyEditSpanController;
private ChangeWatcher() {
mEasyEditSpanController = new EasyEditSpanController();
}
public void beforeTextChanged(CharSequence buffer, int start,
int before, int after) {
if (DEBUG_EXTRACT) Log.v(LOG_TAG, "beforeTextChanged start=" + start
+ " before=" + before + " after=" + after + ": " + buffer);
if (AccessibilityManager.getInstance(mContext).isEnabled()
&& !isPasswordInputType(mInputType)
&& !hasPasswordTransformationMethod()) {
mBeforeText = buffer.toString();
}
TextView.this.sendBeforeTextChanged(buffer, start, before, after);
}
public void onTextChanged(CharSequence buffer, int start,
int before, int after) {
if (DEBUG_EXTRACT) Log.v(LOG_TAG, "onTextChanged start=" + start
+ " before=" + before + " after=" + after + ": " + buffer);
TextView.this.handleTextChanged(buffer, start, before, after);
mEasyEditSpanController.onTextChange(buffer);
if (AccessibilityManager.getInstance(mContext).isEnabled() &&
(isFocused() || isSelected() && isShown())) {
sendAccessibilityEventTypeViewTextChanged(mBeforeText, start, before, after);
mBeforeText = null;
}
}
public void afterTextChanged(Editable buffer) {
if (DEBUG_EXTRACT) Log.v(LOG_TAG, "afterTextChanged: " + buffer);
TextView.this.sendAfterTextChanged(buffer);
if (MetaKeyKeyListener.getMetaState(buffer, MetaKeyKeyListener.META_SELECTING) != 0) {
MetaKeyKeyListener.stopSelecting(TextView.this, buffer);
}
}
public void onSpanChanged(Spannable buf,
Object what, int s, int e, int st, int en) {
if (DEBUG_EXTRACT) Log.v(LOG_TAG, "onSpanChanged s=" + s + " e=" + e
+ " st=" + st + " en=" + en + " what=" + what + ": " + buf);
TextView.this.spanChange(buf, what, s, st, e, en);
}
public void onSpanAdded(Spannable buf, Object what, int s, int e) {
if (DEBUG_EXTRACT) Log.v(LOG_TAG, "onSpanAdded s=" + s + " e=" + e
+ " what=" + what + ": " + buf);
TextView.this.spanChange(buf, what, -1, s, -1, e);
}
public void onSpanRemoved(Spannable buf, Object what, int s, int e) {
if (DEBUG_EXTRACT) Log.v(LOG_TAG, "onSpanRemoved s=" + s + " e=" + e
+ " what=" + what + ": " + buf);
TextView.this.spanChange(buf, what, s, -1, e, -1);
}
private void hideControllers() {
mEasyEditSpanController.hide();
}
}
/**
* @hide
*/
@Override
public void dispatchFinishTemporaryDetach() {
mDispatchTemporaryDetach = true;
super.dispatchFinishTemporaryDetach();
mDispatchTemporaryDetach = false;
}
@Override
public void onStartTemporaryDetach() {
super.onStartTemporaryDetach();
// Only track when onStartTemporaryDetach() is called directly,
// usually because this instance is an editable field in a list
if (!mDispatchTemporaryDetach) mTemporaryDetach = true;
// Because of View recycling in ListView, there is no easy way to know when a TextView with
// selection becomes visible again. Until a better solution is found, stop text selection
// mode (if any) as soon as this TextView is recycled.
hideControllers();
}
@Override
public void onFinishTemporaryDetach() {
super.onFinishTemporaryDetach();
// Only track when onStartTemporaryDetach() is called directly,
// usually because this instance is an editable field in a list
if (!mDispatchTemporaryDetach) mTemporaryDetach = false;
}
@Override
protected void onFocusChanged(boolean focused, int direction, Rect previouslyFocusedRect) {
if (mTemporaryDetach) {
// If we are temporarily in the detach state, then do nothing.
super.onFocusChanged(focused, direction, previouslyFocusedRect);
return;
}
mShowCursor = SystemClock.uptimeMillis();
ensureEndedBatchEdit();
if (focused) {
int selStart = getSelectionStart();
int selEnd = getSelectionEnd();
// SelectAllOnFocus fields are highlighted and not selected. Do not start text selection
// mode for these, unless there was a specific selection already started.
final boolean isFocusHighlighted = mSelectAllOnFocus && selStart == 0 &&
selEnd == mText.length();
mCreatedWithASelection = mFrozenWithFocus && hasSelection() && !isFocusHighlighted;
if (!mFrozenWithFocus || (selStart < 0 || selEnd < 0)) {
// If a tap was used to give focus to that view, move cursor at tap position.
// Has to be done before onTakeFocus, which can be overloaded.
final int lastTapPosition = getLastTapPosition();
if (lastTapPosition >= 0) {
Selection.setSelection((Spannable) mText, lastTapPosition);
}
if (mMovement != null) {
mMovement.onTakeFocus(this, (Spannable) mText, direction);
}
// The DecorView does not have focus when the 'Done' ExtractEditText button is
// pressed. Since it is the ViewAncestor's mView, it requests focus before
// ExtractEditText clears focus, which gives focus to the ExtractEditText.
// This special case ensure that we keep current selection in that case.
// It would be better to know why the DecorView does not have focus at that time.
if (((this instanceof ExtractEditText) || mSelectionMoved) &&
selStart >= 0 && selEnd >= 0) {
/*
* Someone intentionally set the selection, so let them
* do whatever it is that they wanted to do instead of
* the default on-focus behavior. We reset the selection
* here instead of just skipping the onTakeFocus() call
* because some movement methods do something other than
* just setting the selection in theirs and we still
* need to go through that path.
*/
Selection.setSelection((Spannable) mText, selStart, selEnd);
}
if (mSelectAllOnFocus) {
selectAll();
}
mTouchFocusSelected = true;
}
mFrozenWithFocus = false;
mSelectionMoved = false;
if (mText instanceof Spannable) {
Spannable sp = (Spannable) mText;
MetaKeyKeyListener.resetMetaState(sp);
}
makeBlink();
if (mError != null) {
showError();
}
} else {
if (mError != null) {
hideError();
}
// Don't leave us in the middle of a batch edit.
onEndBatchEdit();
if (this instanceof ExtractEditText) {
// terminateTextSelectionMode removes selection, which we want to keep when
// ExtractEditText goes out of focus.
final int selStart = getSelectionStart();
final int selEnd = getSelectionEnd();
hideControllers();
Selection.setSelection((Spannable) mText, selStart, selEnd);
} else {
hideControllers();
downgradeEasyCorrectionSpans();
}
// No need to create the controller
if (mSelectionModifierCursorController != null) {
mSelectionModifierCursorController.resetTouchOffsets();
}
}
startStopMarquee(focused);
if (mTransformation != null) {
mTransformation.onFocusChanged(this, mText, focused, direction, previouslyFocusedRect);
}
super.onFocusChanged(focused, direction, previouslyFocusedRect);
}
private int getLastTapPosition() {
// No need to create the controller at that point, no last tap position saved
if (mSelectionModifierCursorController != null) {
int lastTapPosition = mSelectionModifierCursorController.getMinTouchOffset();
if (lastTapPosition >= 0) {
// Safety check, should not be possible.
if (lastTapPosition > mText.length()) {
Log.e(LOG_TAG, "Invalid tap focus position (" + lastTapPosition + " vs "
+ mText.length() + ")");
lastTapPosition = mText.length();
}
return lastTapPosition;
}
}
return -1;
}
@Override
public void onWindowFocusChanged(boolean hasWindowFocus) {
super.onWindowFocusChanged(hasWindowFocus);
if (hasWindowFocus) {
if (mBlink != null) {
mBlink.uncancel();
makeBlink();
}
} else {
if (mBlink != null) {
mBlink.cancel();
}
// Don't leave us in the middle of a batch edit.
onEndBatchEdit();
if (mInputContentType != null) {
mInputContentType.enterDown = false;
}
hideControllers();
if (mSuggestionsPopupWindow != null) {
mSuggestionsPopupWindow.onParentLostFocus();
}
}
startStopMarquee(hasWindowFocus);
}
@Override
protected void onVisibilityChanged(View changedView, int visibility) {
super.onVisibilityChanged(changedView, visibility);
if (visibility != VISIBLE) {
hideControllers();
}
}
/**
* Use {@link BaseInputConnection#removeComposingSpans
* BaseInputConnection.removeComposingSpans()} to remove any IME composing
* state from this text view.
*/
public void clearComposingText() {
if (mText instanceof Spannable) {
BaseInputConnection.removeComposingSpans((Spannable)mText);
}
}
@Override
public void setSelected(boolean selected) {
boolean wasSelected = isSelected();
super.setSelected(selected);
if (selected != wasSelected && mEllipsize == TextUtils.TruncateAt.MARQUEE) {
if (selected) {
startMarquee();
} else {
stopMarquee();
}
}
}
@Override
public boolean onTouchEvent(MotionEvent event) {
final int action = event.getActionMasked();
if (hasSelectionController()) {
getSelectionController().onTouchEvent(event);
}
if (action == MotionEvent.ACTION_DOWN) {
mLastDownPositionX = event.getX();
mLastDownPositionY = event.getY();
// Reset this state; it will be re-set if super.onTouchEvent
// causes focus to move to the view.
mTouchFocusSelected = false;
mIgnoreActionUpEvent = false;
}
final boolean superResult = super.onTouchEvent(event);
/*
* Don't handle the release after a long press, because it will
* move the selection away from whatever the menu action was
* trying to affect.
*/
if (mDiscardNextActionUp && action == MotionEvent.ACTION_UP) {
mDiscardNextActionUp = false;
return superResult;
}
final boolean touchIsFinished = (action == MotionEvent.ACTION_UP) &&
!shouldIgnoreActionUpEvent() && isFocused();
if ((mMovement != null || onCheckIsTextEditor()) && isEnabled()
&& mText instanceof Spannable && mLayout != null) {
boolean handled = false;
if (mMovement != null) {
handled |= mMovement.onTouchEvent(this, (Spannable) mText, event);
}
if (touchIsFinished && mLinksClickable && mAutoLinkMask != 0 && mTextIsSelectable) {
// The LinkMovementMethod which should handle taps on links has not been installed
// on non editable text that support text selection.
// We reproduce its behavior here to open links for these.
ClickableSpan[] links = ((Spannable) mText).getSpans(getSelectionStart(),
getSelectionEnd(), ClickableSpan.class);
if (links.length != 0) {
links[0].onClick(this);
handled = true;
}
}
if (touchIsFinished && (isTextEditable() || mTextIsSelectable)) {
// Show the IME, except when selecting in read-only text.
final InputMethodManager imm = InputMethodManager.peekInstance();
viewClicked(imm);
if (!mTextIsSelectable && mSoftInputShownOnFocus) {
handled |= imm != null && imm.showSoftInput(this, 0);
}
boolean selectAllGotFocus = mSelectAllOnFocus && didTouchFocusSelect();
hideControllers();
if (!selectAllGotFocus && mText.length() > 0) {
if (mSpellChecker != null) {
// When the cursor moves, the word that was typed may need spell check
mSpellChecker.onSelectionChanged();
}
if (!extractedTextModeWillBeStarted()) {
if (isCursorInsideEasyCorrectionSpan()) {
showSuggestions();
} else if (hasInsertionController()) {
getInsertionController().show();
}
}
}
handled = true;
}
if (handled) {
return true;
}
}
return superResult;
}
/**
* @return <code>true</code> if the cursor/current selection overlaps a {@link SuggestionSpan}.
*/
private boolean isCursorInsideSuggestionSpan() {
if (!(mText instanceof Spannable)) return false;
SuggestionSpan[] suggestionSpans = ((Spannable) mText).getSpans(getSelectionStart(),
getSelectionEnd(), SuggestionSpan.class);
return (suggestionSpans.length > 0);
}
/**
* @return <code>true</code> if the cursor is inside an {@link SuggestionSpan} with
* {@link SuggestionSpan#FLAG_EASY_CORRECT} set.
*/
private boolean isCursorInsideEasyCorrectionSpan() {
Spannable spannable = (Spannable) mText;
SuggestionSpan[] suggestionSpans = spannable.getSpans(getSelectionStart(),
getSelectionEnd(), SuggestionSpan.class);
for (int i = 0; i < suggestionSpans.length; i++) {
if ((suggestionSpans[i].getFlags() & SuggestionSpan.FLAG_EASY_CORRECT) != 0) {
return true;
}
}
return false;
}
/**
* Downgrades to simple suggestions all the easy correction spans that are not a spell check
* span.
*/
private void downgradeEasyCorrectionSpans() {
if (mText instanceof Spannable) {
Spannable spannable = (Spannable) mText;
SuggestionSpan[] suggestionSpans = spannable.getSpans(0,
spannable.length(), SuggestionSpan.class);
for (int i = 0; i < suggestionSpans.length; i++) {
int flags = suggestionSpans[i].getFlags();
if ((flags & SuggestionSpan.FLAG_EASY_CORRECT) != 0
&& (flags & SuggestionSpan.FLAG_MISSPELLED) == 0) {
flags &= ~SuggestionSpan.FLAG_EASY_CORRECT;
suggestionSpans[i].setFlags(flags);
}
}
}
}
@Override
public boolean onGenericMotionEvent(MotionEvent event) {
if (mMovement != null && mText instanceof Spannable && mLayout != null) {
try {
if (mMovement.onGenericMotionEvent(this, (Spannable) mText, event)) {
return true;
}
} catch (AbstractMethodError ex) {
// onGenericMotionEvent was added to the MovementMethod interface in API 12.
// Ignore its absence in case third party applications implemented the
// interface directly.
}
}
return super.onGenericMotionEvent(event);
}
private void prepareCursorControllers() {
boolean windowSupportsHandles = false;
ViewGroup.LayoutParams params = getRootView().getLayoutParams();
if (params instanceof WindowManager.LayoutParams) {
WindowManager.LayoutParams windowParams = (WindowManager.LayoutParams) params;
windowSupportsHandles = windowParams.type < WindowManager.LayoutParams.FIRST_SUB_WINDOW
|| windowParams.type > WindowManager.LayoutParams.LAST_SUB_WINDOW;
}
mInsertionControllerEnabled = windowSupportsHandles && isCursorVisible() && mLayout != null;
mSelectionControllerEnabled = windowSupportsHandles && textCanBeSelected() &&
mLayout != null;
if (!mInsertionControllerEnabled) {
hideInsertionPointCursorController();
if (mInsertionPointCursorController != null) {
mInsertionPointCursorController.onDetached();
mInsertionPointCursorController = null;
}
}
if (!mSelectionControllerEnabled) {
stopSelectionActionMode();
if (mSelectionModifierCursorController != null) {
mSelectionModifierCursorController.onDetached();
mSelectionModifierCursorController = null;
}
}
}
/**
* @return True iff this TextView contains a text that can be edited, or if this is
* a selectable TextView.
*/
private boolean isTextEditable() {
return mText instanceof Editable && onCheckIsTextEditor() && isEnabled();
}
/**
* Returns true, only while processing a touch gesture, if the initial
* touch down event caused focus to move to the text view and as a result
* its selection changed. Only valid while processing the touch gesture
* of interest.
*/
public boolean didTouchFocusSelect() {
return mTouchFocusSelected;
}
@Override
public void cancelLongPress() {
super.cancelLongPress();
mIgnoreActionUpEvent = true;
}
/**
* This method is only valid during a touch event.
*
* @return true when the ACTION_UP event should be ignored, false otherwise.
*
* @hide
*/
public boolean shouldIgnoreActionUpEvent() {
return mIgnoreActionUpEvent;
}
@Override
public boolean onTrackballEvent(MotionEvent event) {
if (mMovement != null && mText instanceof Spannable &&
mLayout != null) {
if (mMovement.onTrackballEvent(this, (Spannable) mText, event)) {
return true;
}
}
return super.onTrackballEvent(event);
}
public void setScroller(Scroller s) {
mScroller = s;
}
private static class Blink extends Handler implements Runnable {
private final WeakReference<TextView> mView;
private boolean mCancelled;
public Blink(TextView v) {
mView = new WeakReference<TextView>(v);
}
public void run() {
if (mCancelled) {
return;
}
removeCallbacks(Blink.this);
TextView tv = mView.get();
if (tv != null && tv.shouldBlink()) {
if (tv.mLayout != null) {
tv.invalidateCursorPath();
}
postAtTime(this, SystemClock.uptimeMillis() + BLINK);
}
}
void cancel() {
if (!mCancelled) {
removeCallbacks(Blink.this);
mCancelled = true;
}
}
void uncancel() {
mCancelled = false;
}
}
/**
* @return True when the TextView isFocused and has a valid zero-length selection (cursor).
*/
private boolean shouldBlink() {
if (!isFocused()) return false;
final int start = getSelectionStart();
if (start < 0) return false;
final int end = getSelectionEnd();
if (end < 0) return false;
return start == end;
}
private void makeBlink() {
if (isCursorVisible()) {
if (shouldBlink()) {
mShowCursor = SystemClock.uptimeMillis();
if (mBlink == null) mBlink = new Blink(this);
mBlink.removeCallbacks(mBlink);
mBlink.postAtTime(mBlink, mShowCursor + BLINK);
}
} else {
if (mBlink != null) mBlink.removeCallbacks(mBlink);
}
}
@Override
protected float getLeftFadingEdgeStrength() {
if (mCurrentAlpha <= ViewConfiguration.ALPHA_THRESHOLD_INT) return 0.0f;
if (mEllipsize == TextUtils.TruncateAt.MARQUEE &&
mMarqueeFadeMode != MARQUEE_FADE_SWITCH_SHOW_ELLIPSIS) {
if (mMarquee != null && !mMarquee.isStopped()) {
final Marquee marquee = mMarquee;
if (marquee.shouldDrawLeftFade()) {
return marquee.mScroll / getHorizontalFadingEdgeLength();
} else {
return 0.0f;
}
} else if (getLineCount() == 1) {
final int layoutDirection = getResolvedLayoutDirection();
final int absoluteGravity = Gravity.getAbsoluteGravity(mGravity, layoutDirection);
switch (absoluteGravity & Gravity.HORIZONTAL_GRAVITY_MASK) {
case Gravity.LEFT:
return 0.0f;
case Gravity.RIGHT:
return (mLayout.getLineRight(0) - (mRight - mLeft) -
getCompoundPaddingLeft() - getCompoundPaddingRight() -
mLayout.getLineLeft(0)) / getHorizontalFadingEdgeLength();
case Gravity.CENTER_HORIZONTAL:
return 0.0f;
}
}
}
return super.getLeftFadingEdgeStrength();
}
@Override
protected float getRightFadingEdgeStrength() {
if (mCurrentAlpha <= ViewConfiguration.ALPHA_THRESHOLD_INT) return 0.0f;
if (mEllipsize == TextUtils.TruncateAt.MARQUEE &&
mMarqueeFadeMode != MARQUEE_FADE_SWITCH_SHOW_ELLIPSIS) {
if (mMarquee != null && !mMarquee.isStopped()) {
final Marquee marquee = mMarquee;
return (marquee.mMaxFadeScroll - marquee.mScroll) / getHorizontalFadingEdgeLength();
} else if (getLineCount() == 1) {
final int layoutDirection = getResolvedLayoutDirection();
final int absoluteGravity = Gravity.getAbsoluteGravity(mGravity, layoutDirection);
switch (absoluteGravity & Gravity.HORIZONTAL_GRAVITY_MASK) {
case Gravity.LEFT:
final int textWidth = (mRight - mLeft) - getCompoundPaddingLeft() -
getCompoundPaddingRight();
final float lineWidth = mLayout.getLineWidth(0);
return (lineWidth - textWidth) / getHorizontalFadingEdgeLength();
case Gravity.RIGHT:
return 0.0f;
case Gravity.CENTER_HORIZONTAL:
case Gravity.FILL_HORIZONTAL:
return (mLayout.getLineWidth(0) - ((mRight - mLeft) -
getCompoundPaddingLeft() - getCompoundPaddingRight())) /
getHorizontalFadingEdgeLength();
}
}
}
return super.getRightFadingEdgeStrength();
}
@Override
protected int computeHorizontalScrollRange() {
if (mLayout != null) {
return mSingleLine && (mGravity & Gravity.HORIZONTAL_GRAVITY_MASK) == Gravity.LEFT ?
(int) mLayout.getLineWidth(0) : mLayout.getWidth();
}
return super.computeHorizontalScrollRange();
}
@Override
protected int computeVerticalScrollRange() {
if (mLayout != null)
return mLayout.getHeight();
return super.computeVerticalScrollRange();
}
@Override
protected int computeVerticalScrollExtent() {
return getHeight() - getCompoundPaddingTop() - getCompoundPaddingBottom();
}
@Override
public void findViewsWithText(ArrayList<View> outViews, CharSequence searched, int flags) {
super.findViewsWithText(outViews, searched, flags);
if (!outViews.contains(this) && (flags & FIND_VIEWS_WITH_TEXT) != 0
&& !TextUtils.isEmpty(searched) && !TextUtils.isEmpty(mText)) {
String searchedLowerCase = searched.toString().toLowerCase();
String textLowerCase = mText.toString().toLowerCase();
if (textLowerCase.contains(searchedLowerCase)) {
outViews.add(this);
}
}
}
public enum BufferType {
NORMAL, SPANNABLE, EDITABLE,
}
/**
* Returns the TextView_textColor attribute from the
* Resources.StyledAttributes, if set, or the TextAppearance_textColor
* from the TextView_textAppearance attribute, if TextView_textColor
* was not set directly.
*/
public static ColorStateList getTextColors(Context context, TypedArray attrs) {
ColorStateList colors;
colors = attrs.getColorStateList(com.android.internal.R.styleable.
TextView_textColor);
if (colors == null) {
int ap = attrs.getResourceId(com.android.internal.R.styleable.
TextView_textAppearance, -1);
if (ap != -1) {
TypedArray appearance;
appearance = context.obtainStyledAttributes(ap,
com.android.internal.R.styleable.TextAppearance);
colors = appearance.getColorStateList(com.android.internal.R.styleable.
TextAppearance_textColor);
appearance.recycle();
}
}
return colors;
}
/**
* Returns the default color from the TextView_textColor attribute
* from the AttributeSet, if set, or the default color from the
* TextAppearance_textColor from the TextView_textAppearance attribute,
* if TextView_textColor was not set directly.
*/
public static int getTextColor(Context context,
TypedArray attrs,
int def) {
ColorStateList colors = getTextColors(context, attrs);
if (colors == null) {
return def;
} else {
return colors.getDefaultColor();
}
}
@Override
public boolean onKeyShortcut(int keyCode, KeyEvent event) {
final int filteredMetaState = event.getMetaState() & ~KeyEvent.META_CTRL_MASK;
if (KeyEvent.metaStateHasNoModifiers(filteredMetaState)) {
switch (keyCode) {
case KeyEvent.KEYCODE_A:
if (canSelectText()) {
return onTextContextMenuItem(ID_SELECT_ALL);
}
break;
case KeyEvent.KEYCODE_X:
if (canCut()) {
return onTextContextMenuItem(ID_CUT);
}
break;
case KeyEvent.KEYCODE_C:
if (canCopy()) {
return onTextContextMenuItem(ID_COPY);
}
break;
case KeyEvent.KEYCODE_V:
if (canPaste()) {
return onTextContextMenuItem(ID_PASTE);
}
break;
}
}
return super.onKeyShortcut(keyCode, event);
}
/**
* Unlike {@link #textCanBeSelected()}, this method is based on the <i>current</i> state of the
* TextView. {@link #textCanBeSelected()} has to be true (this is one of the conditions to have
* a selection controller (see {@link #prepareCursorControllers()}), but this is not sufficient.
*/
private boolean canSelectText() {
return hasSelectionController() && mText.length() != 0;
}
/**
* Test based on the <i>intrinsic</i> charateristics of the TextView.
* The text must be spannable and the movement method must allow for arbitary selection.
*
* See also {@link #canSelectText()}.
*/
private boolean textCanBeSelected() {
// prepareCursorController() relies on this method.
// If you change this condition, make sure prepareCursorController is called anywhere
// the value of this condition might be changed.
if (mMovement == null || !mMovement.canSelectArbitrarily()) return false;
return isTextEditable() || (mTextIsSelectable && mText instanceof Spannable && isEnabled());
}
private boolean canCut() {
if (hasPasswordTransformationMethod()) {
return false;
}
if (mText.length() > 0 && hasSelection() && mText instanceof Editable && mInput != null) {
return true;
}
return false;
}
private boolean canCopy() {
if (hasPasswordTransformationMethod()) {
return false;
}
if (mText.length() > 0 && hasSelection()) {
return true;
}
return false;
}
private boolean canPaste() {
return (mText instanceof Editable &&
mInput != null &&
getSelectionStart() >= 0 &&
getSelectionEnd() >= 0 &&
((ClipboardManager)getContext().getSystemService(Context.CLIPBOARD_SERVICE)).
hasPrimaryClip());
}
private static long packRangeInLong(int start, int end) {
return (((long) start) << 32) | end;
}
private static int extractRangeStartFromLong(long range) {
return (int) (range >>> 32);
}
private static int extractRangeEndFromLong(long range) {
return (int) (range & 0x00000000FFFFFFFFL);
}
private boolean selectAll() {
final int length = mText.length();
Selection.setSelection((Spannable) mText, 0, length);
return length > 0;
}
/**
* Adjusts selection to the word under last touch offset.
* Return true if the operation was successfully performed.
*/
private boolean selectCurrentWord() {
if (!canSelectText()) {
return false;
}
if (hasPasswordTransformationMethod()) {
// Always select all on a password field.
// Cut/copy menu entries are not available for passwords, but being able to select all
// is however useful to delete or paste to replace the entire content.
return selectAll();
}
int klass = mInputType & InputType.TYPE_MASK_CLASS;
int variation = mInputType & InputType.TYPE_MASK_VARIATION;
// Specific text field types: select the entire text for these
if (klass == InputType.TYPE_CLASS_NUMBER ||
klass == InputType.TYPE_CLASS_PHONE ||
klass == InputType.TYPE_CLASS_DATETIME ||
variation == InputType.TYPE_TEXT_VARIATION_URI ||
variation == InputType.TYPE_TEXT_VARIATION_EMAIL_ADDRESS ||
variation == InputType.TYPE_TEXT_VARIATION_WEB_EMAIL_ADDRESS ||
variation == InputType.TYPE_TEXT_VARIATION_FILTER) {
return selectAll();
}
long lastTouchOffsets = getLastTouchOffsets();
final int minOffset = extractRangeStartFromLong(lastTouchOffsets);
final int maxOffset = extractRangeEndFromLong(lastTouchOffsets);
// Safety check in case standard touch event handling has been bypassed
if (minOffset < 0 || minOffset >= mText.length()) return false;
if (maxOffset < 0 || maxOffset >= mText.length()) return false;
int selectionStart, selectionEnd;
// If a URLSpan (web address, email, phone...) is found at that position, select it.
URLSpan[] urlSpans = ((Spanned) mText).getSpans(minOffset, maxOffset, URLSpan.class);
if (urlSpans.length >= 1) {
URLSpan urlSpan = urlSpans[0];
selectionStart = ((Spanned) mText).getSpanStart(urlSpan);
selectionEnd = ((Spanned) mText).getSpanEnd(urlSpan);
} else {
final WordIterator wordIterator = getWordIterator();
wordIterator.setCharSequence(mText, minOffset, maxOffset);
selectionStart = wordIterator.getBeginning(minOffset);
if (selectionStart == BreakIterator.DONE) return false;
selectionEnd = wordIterator.getEnd(maxOffset);
if (selectionEnd == BreakIterator.DONE) return false;
if (selectionStart == selectionEnd) {
// Possible when the word iterator does not properly handle the text's language
long range = getCharRange(selectionStart);
selectionStart = extractRangeStartFromLong(range);
selectionEnd = extractRangeEndFromLong(range);
}
}
Selection.setSelection((Spannable) mText, selectionStart, selectionEnd);
return selectionEnd > selectionStart;
}
/**
* This is a temporary method. Future versions may support multi-locale text.
*
* @return The locale that should be used for a word iterator and a spell checker
* in this TextView, based on the current spell checker settings,
* the current IME's locale, or the system default locale.
* @hide
*/
public Locale getTextServicesLocale() {
Locale locale = Locale.getDefault();
final TextServicesManager textServicesManager = (TextServicesManager)
mContext.getSystemService(Context.TEXT_SERVICES_MANAGER_SERVICE);
final SpellCheckerSubtype subtype = textServicesManager.getCurrentSpellCheckerSubtype(true);
if (subtype != null) {
locale = new Locale(subtype.getLocale());
}
return locale;
}
void onLocaleChanged() {
// Will be re-created on demand in getWordIterator with the proper new locale
mWordIterator = null;
}
/**
* @hide
*/
public WordIterator getWordIterator() {
if (mWordIterator == null) {
mWordIterator = new WordIterator(getTextServicesLocale());
}
return mWordIterator;
}
private long getCharRange(int offset) {
final int textLength = mText.length();
if (offset + 1 < textLength) {
final char currentChar = mText.charAt(offset);
final char nextChar = mText.charAt(offset + 1);
if (Character.isSurrogatePair(currentChar, nextChar)) {
return packRangeInLong(offset, offset + 2);
}
}
if (offset < textLength) {
return packRangeInLong(offset, offset + 1);
}
if (offset - 2 >= 0) {
final char previousChar = mText.charAt(offset - 1);
final char previousPreviousChar = mText.charAt(offset - 2);
if (Character.isSurrogatePair(previousPreviousChar, previousChar)) {
return packRangeInLong(offset - 2, offset);
}
}
if (offset - 1 >= 0) {
return packRangeInLong(offset - 1, offset);
}
return packRangeInLong(offset, offset);
}
private long getLastTouchOffsets() {
SelectionModifierCursorController selectionController = getSelectionController();
final int minOffset = selectionController.getMinTouchOffset();
final int maxOffset = selectionController.getMaxTouchOffset();
return packRangeInLong(minOffset, maxOffset);
}
@Override
public void onPopulateAccessibilityEvent(AccessibilityEvent event) {
super.onPopulateAccessibilityEvent(event);
final boolean isPassword = hasPasswordTransformationMethod();
if (!isPassword) {
CharSequence text = getTextForAccessibility();
if (!TextUtils.isEmpty(text)) {
event.getText().add(text);
}
}
}
@Override
public void onInitializeAccessibilityEvent(AccessibilityEvent event) {
super.onInitializeAccessibilityEvent(event);
final boolean isPassword = hasPasswordTransformationMethod();
event.setPassword(isPassword);
if (event.getEventType() == AccessibilityEvent.TYPE_VIEW_TEXT_SELECTION_CHANGED) {
event.setFromIndex(Selection.getSelectionStart(mText));
event.setToIndex(Selection.getSelectionEnd(mText));
event.setItemCount(mText.length());
}
}
@Override
public void onInitializeAccessibilityNodeInfo(AccessibilityNodeInfo info) {
super.onInitializeAccessibilityNodeInfo(info);
final boolean isPassword = hasPasswordTransformationMethod();
if (!isPassword) {
info.setText(getTextForAccessibility());
}
info.setPassword(isPassword);
}
@Override
public void sendAccessibilityEvent(int eventType) {
// Do not send scroll events since first they are not interesting for
// accessibility and second such events a generated too frequently.
// For details see the implementation of bringTextIntoView().
if (eventType == AccessibilityEvent.TYPE_VIEW_SCROLLED) {
return;
}
super.sendAccessibilityEvent(eventType);
}
/**
* Gets the text reported for accessibility purposes. It is the
* text if not empty or the hint.
*
* @return The accessibility text.
*/
private CharSequence getTextForAccessibility() {
CharSequence text = getText();
if (TextUtils.isEmpty(text)) {
text = getHint();
}
return text;
}
void sendAccessibilityEventTypeViewTextChanged(CharSequence beforeText,
int fromIndex, int removedCount, int addedCount) {
AccessibilityEvent event =
AccessibilityEvent.obtain(AccessibilityEvent.TYPE_VIEW_TEXT_CHANGED);
event.setFromIndex(fromIndex);
event.setRemovedCount(removedCount);
event.setAddedCount(addedCount);
event.setBeforeText(beforeText);
sendAccessibilityEventUnchecked(event);
}
/**
* Returns whether this text view is a current input method target. The
* default implementation just checks with {@link InputMethodManager}.
*/
public boolean isInputMethodTarget() {
InputMethodManager imm = InputMethodManager.peekInstance();
return imm != null && imm.isActive(this);
}
// Selection context mode
private static final int ID_SELECT_ALL = android.R.id.selectAll;
private static final int ID_CUT = android.R.id.cut;
private static final int ID_COPY = android.R.id.copy;
private static final int ID_PASTE = android.R.id.paste;
/**
* Called when a context menu option for the text view is selected. Currently
* this will be one of {@link android.R.id#selectAll}, {@link android.R.id#cut},
* {@link android.R.id#copy} or {@link android.R.id#paste}.
*
* @return true if the context menu item action was performed.
*/
public boolean onTextContextMenuItem(int id) {
int min = 0;
int max = mText.length();
if (isFocused()) {
final int selStart = getSelectionStart();
final int selEnd = getSelectionEnd();
min = Math.max(0, Math.min(selStart, selEnd));
max = Math.max(0, Math.max(selStart, selEnd));
}
switch (id) {
case ID_SELECT_ALL:
// This does not enter text selection mode. Text is highlighted, so that it can be
// bulk edited, like selectAllOnFocus does. Returns true even if text is empty.
selectAll();
return true;
case ID_PASTE:
paste(min, max);
return true;
case ID_CUT:
setPrimaryClip(ClipData.newPlainText(null, getTransformedText(min, max)));
deleteText_internal(min, max);
stopSelectionActionMode();
return true;
case ID_COPY:
setPrimaryClip(ClipData.newPlainText(null, getTransformedText(min, max)));
stopSelectionActionMode();
return true;
}
return false;
}
private CharSequence getTransformedText(int start, int end) {
return removeSuggestionSpans(mTransformed.subSequence(start, end));
}
/**
* Prepare text so that there are not zero or two spaces at beginning and end of region defined
* by [min, max] when replacing this region by paste.
* Note that if there were two spaces (or more) at that position before, they are kept. We just
* make sure we do not add an extra one from the paste content.
*/
private long prepareSpacesAroundPaste(int min, int max, CharSequence paste) {
if (paste.length() > 0) {
if (min > 0) {
final char charBefore = mTransformed.charAt(min - 1);
final char charAfter = paste.charAt(0);
if (Character.isSpaceChar(charBefore) && Character.isSpaceChar(charAfter)) {
// Two spaces at beginning of paste: remove one
final int originalLength = mText.length();
deleteText_internal(min - 1, min);
// Due to filters, there is no guarantee that exactly one character was
// removed: count instead.
final int delta = mText.length() - originalLength;
min += delta;
max += delta;
} else if (!Character.isSpaceChar(charBefore) && charBefore != '\n' &&
!Character.isSpaceChar(charAfter) && charAfter != '\n') {
// No space at beginning of paste: add one
final int originalLength = mText.length();
replaceText_internal(min, min, " ");
// Taking possible filters into account as above.
final int delta = mText.length() - originalLength;
min += delta;
max += delta;
}
}
if (max < mText.length()) {
final char charBefore = paste.charAt(paste.length() - 1);
final char charAfter = mTransformed.charAt(max);
if (Character.isSpaceChar(charBefore) && Character.isSpaceChar(charAfter)) {
// Two spaces at end of paste: remove one
deleteText_internal(max, max + 1);
} else if (!Character.isSpaceChar(charBefore) && charBefore != '\n' &&
!Character.isSpaceChar(charAfter) && charAfter != '\n') {
// No space at end of paste: add one
replaceText_internal(max, max, " ");
}
}
}
return packRangeInLong(min, max);
}
private DragShadowBuilder getTextThumbnailBuilder(CharSequence text) {
TextView shadowView = (TextView) inflate(mContext,
com.android.internal.R.layout.text_drag_thumbnail, null);
if (shadowView == null) {
throw new IllegalArgumentException("Unable to inflate text drag thumbnail");
}
if (text.length() > DRAG_SHADOW_MAX_TEXT_LENGTH) {
text = text.subSequence(0, DRAG_SHADOW_MAX_TEXT_LENGTH);
}
shadowView.setText(text);
shadowView.setTextColor(getTextColors());
shadowView.setTextAppearance(mContext, R.styleable.Theme_textAppearanceLarge);
shadowView.setGravity(Gravity.CENTER);
shadowView.setLayoutParams(new LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT,
ViewGroup.LayoutParams.WRAP_CONTENT));
final int size = View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED);
shadowView.measure(size, size);
shadowView.layout(0, 0, shadowView.getMeasuredWidth(), shadowView.getMeasuredHeight());
shadowView.invalidate();
return new DragShadowBuilder(shadowView);
}
private static class DragLocalState {
public TextView sourceTextView;
public int start, end;
public DragLocalState(TextView sourceTextView, int start, int end) {
this.sourceTextView = sourceTextView;
this.start = start;
this.end = end;
}
}
@Override
public boolean performLongClick() {
boolean handled = false;
boolean vibrate = true;
if (super.performLongClick()) {
mDiscardNextActionUp = true;
handled = true;
}
// Long press in empty space moves cursor and shows the Paste affordance if available.
if (!handled && !isPositionOnText(mLastDownPositionX, mLastDownPositionY) &&
mInsertionControllerEnabled) {
final int offset = getOffsetForPosition(mLastDownPositionX, mLastDownPositionY);
stopSelectionActionMode();
Selection.setSelection((Spannable) mText, offset);
getInsertionController().showWithActionPopup();
handled = true;
vibrate = false;
}
if (!handled && mSelectionActionMode != null) {
if (touchPositionIsInSelection()) {
// Start a drag
final int start = getSelectionStart();
final int end = getSelectionEnd();
CharSequence selectedText = getTransformedText(start, end);
ClipData data = ClipData.newPlainText(null, selectedText);
DragLocalState localState = new DragLocalState(this, start, end);
startDrag(data, getTextThumbnailBuilder(selectedText), localState, 0);
stopSelectionActionMode();
} else {
getSelectionController().hide();
selectCurrentWord();
getSelectionController().show();
}
handled = true;
}
// Start a new selection
if (!handled) {
vibrate = handled = startSelectionActionMode();
}
if (vibrate) {
performHapticFeedback(HapticFeedbackConstants.LONG_PRESS);
}
if (handled) {
mDiscardNextActionUp = true;
}
return handled;
}
private boolean touchPositionIsInSelection() {
int selectionStart = getSelectionStart();
int selectionEnd = getSelectionEnd();
if (selectionStart == selectionEnd) {
return false;
}
if (selectionStart > selectionEnd) {
int tmp = selectionStart;
selectionStart = selectionEnd;
selectionEnd = tmp;
Selection.setSelection((Spannable) mText, selectionStart, selectionEnd);
}
SelectionModifierCursorController selectionController = getSelectionController();
int minOffset = selectionController.getMinTouchOffset();
int maxOffset = selectionController.getMaxTouchOffset();
return ((minOffset >= selectionStart) && (maxOffset < selectionEnd));
}
private PositionListener getPositionListener() {
if (mPositionListener == null) {
mPositionListener = new PositionListener();
}
return mPositionListener;
}
private interface TextViewPositionListener {
public void updatePosition(int parentPositionX, int parentPositionY,
boolean parentPositionChanged, boolean parentScrolled);
}
private class PositionListener implements ViewTreeObserver.OnPreDrawListener {
// 3 handles
// 3 ActionPopup [replace, suggestion, easyedit] (suggestionsPopup first hides the others)
private final int MAXIMUM_NUMBER_OF_LISTENERS = 6;
private TextViewPositionListener[] mPositionListeners =
new TextViewPositionListener[MAXIMUM_NUMBER_OF_LISTENERS];
private boolean mCanMove[] = new boolean[MAXIMUM_NUMBER_OF_LISTENERS];
private boolean mPositionHasChanged = true;
// Absolute position of the TextView with respect to its parent window
private int mPositionX, mPositionY;
private int mNumberOfListeners;
private boolean mScrollHasChanged;
public void addSubscriber(TextViewPositionListener positionListener, boolean canMove) {
if (mNumberOfListeners == 0) {
updatePosition();
ViewTreeObserver vto = TextView.this.getViewTreeObserver();
vto.addOnPreDrawListener(this);
}
int emptySlotIndex = -1;
for (int i = 0; i < MAXIMUM_NUMBER_OF_LISTENERS; i++) {
TextViewPositionListener listener = mPositionListeners[i];
if (listener == positionListener) {
return;
} else if (emptySlotIndex < 0 && listener == null) {
emptySlotIndex = i;
}
}
mPositionListeners[emptySlotIndex] = positionListener;
mCanMove[emptySlotIndex] = canMove;
mNumberOfListeners++;
}
public void removeSubscriber(TextViewPositionListener positionListener) {
for (int i = 0; i < MAXIMUM_NUMBER_OF_LISTENERS; i++) {
if (mPositionListeners[i] == positionListener) {
mPositionListeners[i] = null;
mNumberOfListeners--;
break;
}
}
if (mNumberOfListeners == 0) {
ViewTreeObserver vto = TextView.this.getViewTreeObserver();
vto.removeOnPreDrawListener(this);
}
}
public int getPositionX() {
return mPositionX;
}
public int getPositionY() {
return mPositionY;
}
@Override
public boolean onPreDraw() {
updatePosition();
for (int i = 0; i < MAXIMUM_NUMBER_OF_LISTENERS; i++) {
if (mPositionHasChanged || mScrollHasChanged || mCanMove[i]) {
TextViewPositionListener positionListener = mPositionListeners[i];
if (positionListener != null) {
positionListener.updatePosition(mPositionX, mPositionY,
mPositionHasChanged, mScrollHasChanged);
}
}
}
mScrollHasChanged = false;
return true;
}
private void updatePosition() {
TextView.this.getLocationInWindow(mTempCoords);
mPositionHasChanged = mTempCoords[0] != mPositionX || mTempCoords[1] != mPositionY;
mPositionX = mTempCoords[0];
mPositionY = mTempCoords[1];
}
public void onScrollChanged() {
mScrollHasChanged = true;
}
}
private boolean isPositionVisible(int positionX, int positionY) {
synchronized (sTmpPosition) {
final float[] position = sTmpPosition;
position[0] = positionX;
position[1] = positionY;
View view = this;
while (view != null) {
if (view != this) {
// Local scroll is already taken into account in positionX/Y
position[0] -= view.getScrollX();
position[1] -= view.getScrollY();
}
if (position[0] < 0 || position[1] < 0 ||
position[0] > view.getWidth() || position[1] > view.getHeight()) {
return false;
}
if (!view.getMatrix().isIdentity()) {
view.getMatrix().mapPoints(position);
}
position[0] += view.getLeft();
position[1] += view.getTop();
final ViewParent parent = view.getParent();
if (parent instanceof View) {
view = (View) parent;
} else {
// We've reached the ViewRoot, stop iterating
view = null;
}
}
}
// We've been able to walk up the view hierarchy and the position was never clipped
return true;
}
private boolean isOffsetVisible(int offset) {
final int line = mLayout.getLineForOffset(offset);
final int lineBottom = mLayout.getLineBottom(line);
final int primaryHorizontal = (int) mLayout.getPrimaryHorizontal(offset);
return isPositionVisible(primaryHorizontal + viewportToContentHorizontalOffset(),
lineBottom + viewportToContentVerticalOffset());
}
@Override
protected void onScrollChanged(int horiz, int vert, int oldHoriz, int oldVert) {
super.onScrollChanged(horiz, vert, oldHoriz, oldVert);
if (mPositionListener != null) {
mPositionListener.onScrollChanged();
}
}
private abstract class PinnedPopupWindow implements TextViewPositionListener {
protected PopupWindow mPopupWindow;
protected ViewGroup mContentView;
int mPositionX, mPositionY;
protected abstract void createPopupWindow();
protected abstract void initContentView();
protected abstract int getTextOffset();
protected abstract int getVerticalLocalPosition(int line);
protected abstract int clipVertically(int positionY);
public PinnedPopupWindow() {
createPopupWindow();
mPopupWindow.setWindowLayoutType(WindowManager.LayoutParams.TYPE_APPLICATION_SUB_PANEL);
mPopupWindow.setWidth(ViewGroup.LayoutParams.WRAP_CONTENT);
mPopupWindow.setHeight(ViewGroup.LayoutParams.WRAP_CONTENT);
initContentView();
LayoutParams wrapContent = new LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT,
ViewGroup.LayoutParams.WRAP_CONTENT);
mContentView.setLayoutParams(wrapContent);
mPopupWindow.setContentView(mContentView);
}
public void show() {
TextView.this.getPositionListener().addSubscriber(this, false /* offset is fixed */);
computeLocalPosition();
final PositionListener positionListener = TextView.this.getPositionListener();
updatePosition(positionListener.getPositionX(), positionListener.getPositionY());
}
protected void measureContent() {
final DisplayMetrics displayMetrics = mContext.getResources().getDisplayMetrics();
mContentView.measure(
View.MeasureSpec.makeMeasureSpec(displayMetrics.widthPixels,
View.MeasureSpec.AT_MOST),
View.MeasureSpec.makeMeasureSpec(displayMetrics.heightPixels,
View.MeasureSpec.AT_MOST));
}
/* The popup window will be horizontally centered on the getTextOffset() and vertically
* positioned according to viewportToContentHorizontalOffset.
*
* This method assumes that mContentView has properly been measured from its content. */
private void computeLocalPosition() {
measureContent();
final int width = mContentView.getMeasuredWidth();
final int offset = getTextOffset();
mPositionX = (int) (mLayout.getPrimaryHorizontal(offset) - width / 2.0f);
mPositionX += viewportToContentHorizontalOffset();
final int line = mLayout.getLineForOffset(offset);
mPositionY = getVerticalLocalPosition(line);
mPositionY += viewportToContentVerticalOffset();
}
private void updatePosition(int parentPositionX, int parentPositionY) {
int positionX = parentPositionX + mPositionX;
int positionY = parentPositionY + mPositionY;
positionY = clipVertically(positionY);
// Horizontal clipping
final DisplayMetrics displayMetrics = mContext.getResources().getDisplayMetrics();
final int width = mContentView.getMeasuredWidth();
positionX = Math.min(displayMetrics.widthPixels - width, positionX);
positionX = Math.max(0, positionX);
if (isShowing()) {
mPopupWindow.update(positionX, positionY, -1, -1);
} else {
mPopupWindow.showAtLocation(TextView.this, Gravity.NO_GRAVITY,
positionX, positionY);
}
}
public void hide() {
mPopupWindow.dismiss();
TextView.this.getPositionListener().removeSubscriber(this);
}
@Override
public void updatePosition(int parentPositionX, int parentPositionY,
boolean parentPositionChanged, boolean parentScrolled) {
// Either parentPositionChanged or parentScrolled is true, check if still visible
if (isShowing() && isOffsetVisible(getTextOffset())) {
if (parentScrolled) computeLocalPosition();
updatePosition(parentPositionX, parentPositionY);
} else {
hide();
}
}
public boolean isShowing() {
return mPopupWindow.isShowing();
}
}
private class SuggestionsPopupWindow extends PinnedPopupWindow implements OnItemClickListener {
private static final int MAX_NUMBER_SUGGESTIONS = SuggestionSpan.SUGGESTIONS_MAX_SIZE;
private static final int ADD_TO_DICTIONARY = -1;
private static final int DELETE_TEXT = -2;
private SuggestionInfo[] mSuggestionInfos;
private int mNumberOfSuggestions;
private boolean mCursorWasVisibleBeforeSuggestions;
private boolean mIsShowingUp = false;
private SuggestionAdapter mSuggestionsAdapter;
private final Comparator<SuggestionSpan> mSuggestionSpanComparator;
private final HashMap<SuggestionSpan, Integer> mSpansLengths;
private class CustomPopupWindow extends PopupWindow {
public CustomPopupWindow(Context context, int defStyle) {
super(context, null, defStyle);
}
@Override
public void dismiss() {
super.dismiss();
TextView.this.getPositionListener().removeSubscriber(SuggestionsPopupWindow.this);
// Safe cast since show() checks that mText is an Editable
((Spannable) mText).removeSpan(mSuggestionRangeSpan);
setCursorVisible(mCursorWasVisibleBeforeSuggestions);
if (hasInsertionController()) {
getInsertionController().show();
}
}
}
public SuggestionsPopupWindow() {
mCursorWasVisibleBeforeSuggestions = mCursorVisible;
mSuggestionSpanComparator = new SuggestionSpanComparator();
mSpansLengths = new HashMap<SuggestionSpan, Integer>();
}
@Override
protected void createPopupWindow() {
mPopupWindow = new CustomPopupWindow(TextView.this.mContext,
com.android.internal.R.attr.textSuggestionsWindowStyle);
mPopupWindow.setInputMethodMode(PopupWindow.INPUT_METHOD_NOT_NEEDED);
mPopupWindow.setFocusable(true);
mPopupWindow.setClippingEnabled(false);
}
@Override
protected void initContentView() {
ListView listView = new ListView(TextView.this.getContext());
mSuggestionsAdapter = new SuggestionAdapter();
listView.setAdapter(mSuggestionsAdapter);
listView.setOnItemClickListener(this);
mContentView = listView;
// Inflate the suggestion items once and for all. + 2 for add to dictionary and delete
mSuggestionInfos = new SuggestionInfo[MAX_NUMBER_SUGGESTIONS + 2];
for (int i = 0; i < mSuggestionInfos.length; i++) {
mSuggestionInfos[i] = new SuggestionInfo();
}
}
public boolean isShowingUp() {
return mIsShowingUp;
}
public void onParentLostFocus() {
mIsShowingUp = false;
}
private class SuggestionInfo {
int suggestionStart, suggestionEnd; // range of actual suggestion within text
SuggestionSpan suggestionSpan; // the SuggestionSpan that this TextView represents
int suggestionIndex; // the index of this suggestion inside suggestionSpan
SpannableStringBuilder text = new SpannableStringBuilder();
TextAppearanceSpan highlightSpan = new TextAppearanceSpan(mContext,
android.R.style.TextAppearance_SuggestionHighlight);
}
private class SuggestionAdapter extends BaseAdapter {
private LayoutInflater mInflater = (LayoutInflater) TextView.this.mContext.
getSystemService(Context.LAYOUT_INFLATER_SERVICE);
@Override
public int getCount() {
return mNumberOfSuggestions;
}
@Override
public Object getItem(int position) {
return mSuggestionInfos[position];
}
@Override
public long getItemId(int position) {
return position;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
TextView textView = (TextView) convertView;
if (textView == null) {
textView = (TextView) mInflater.inflate(mTextEditSuggestionItemLayout, parent,
false);
}
final SuggestionInfo suggestionInfo = mSuggestionInfos[position];
textView.setText(suggestionInfo.text);
if (suggestionInfo.suggestionIndex == ADD_TO_DICTIONARY) {
textView.setCompoundDrawablesWithIntrinsicBounds(
com.android.internal.R.drawable.ic_suggestions_add, 0, 0, 0);
} else if (suggestionInfo.suggestionIndex == DELETE_TEXT) {
textView.setCompoundDrawablesWithIntrinsicBounds(
com.android.internal.R.drawable.ic_suggestions_delete, 0, 0, 0);
} else {
textView.setCompoundDrawables(null, null, null, null);
}
return textView;
}
}
private class SuggestionSpanComparator implements Comparator<SuggestionSpan> {
public int compare(SuggestionSpan span1, SuggestionSpan span2) {
final int flag1 = span1.getFlags();
final int flag2 = span2.getFlags();
if (flag1 != flag2) {
// The order here should match what is used in updateDrawState
final boolean easy1 = (flag1 & SuggestionSpan.FLAG_EASY_CORRECT) != 0;
final boolean easy2 = (flag2 & SuggestionSpan.FLAG_EASY_CORRECT) != 0;
final boolean misspelled1 = (flag1 & SuggestionSpan.FLAG_MISSPELLED) != 0;
final boolean misspelled2 = (flag2 & SuggestionSpan.FLAG_MISSPELLED) != 0;
if (easy1 && !misspelled1) return -1;
if (easy2 && !misspelled2) return 1;
if (misspelled1) return -1;
if (misspelled2) return 1;
}
return mSpansLengths.get(span1).intValue() - mSpansLengths.get(span2).intValue();
}
}
/**
* Returns the suggestion spans that cover the current cursor position. The suggestion
* spans are sorted according to the length of text that they are attached to.
*/
private SuggestionSpan[] getSuggestionSpans() {
int pos = TextView.this.getSelectionStart();
Spannable spannable = (Spannable) TextView.this.mText;
SuggestionSpan[] suggestionSpans = spannable.getSpans(pos, pos, SuggestionSpan.class);
mSpansLengths.clear();
for (SuggestionSpan suggestionSpan : suggestionSpans) {
int start = spannable.getSpanStart(suggestionSpan);
int end = spannable.getSpanEnd(suggestionSpan);
mSpansLengths.put(suggestionSpan, Integer.valueOf(end - start));
}
// The suggestions are sorted according to their types (easy correction first, then
// misspelled) and to the length of the text that they cover (shorter first).
Arrays.sort(suggestionSpans, mSuggestionSpanComparator);
return suggestionSpans;
}
@Override
public void show() {
if (!(mText instanceof Editable)) return;
updateSuggestions();
mCursorWasVisibleBeforeSuggestions = mCursorVisible;
setCursorVisible(false);
mIsShowingUp = true;
super.show();
}
@Override
protected void measureContent() {
final DisplayMetrics displayMetrics = mContext.getResources().getDisplayMetrics();
final int horizontalMeasure = View.MeasureSpec.makeMeasureSpec(
displayMetrics.widthPixels, View.MeasureSpec.AT_MOST);
final int verticalMeasure = View.MeasureSpec.makeMeasureSpec(
displayMetrics.heightPixels, View.MeasureSpec.AT_MOST);
int width = 0;
View view = null;
for (int i = 0; i < mNumberOfSuggestions; i++) {
view = mSuggestionsAdapter.getView(i, view, mContentView);
view.getLayoutParams().width = LayoutParams.WRAP_CONTENT;
view.measure(horizontalMeasure, verticalMeasure);
width = Math.max(width, view.getMeasuredWidth());
}
// Enforce the width based on actual text widths
mContentView.measure(
View.MeasureSpec.makeMeasureSpec(width, View.MeasureSpec.EXACTLY),
verticalMeasure);
Drawable popupBackground = mPopupWindow.getBackground();
if (popupBackground != null) {
if (mTempRect == null) mTempRect = new Rect();
popupBackground.getPadding(mTempRect);
width += mTempRect.left + mTempRect.right;
}
mPopupWindow.setWidth(width);
}
@Override
protected int getTextOffset() {
return getSelectionStart();
}
@Override
protected int getVerticalLocalPosition(int line) {
return mLayout.getLineBottom(line);
}
@Override
protected int clipVertically(int positionY) {
final int height = mContentView.getMeasuredHeight();
final DisplayMetrics displayMetrics = mContext.getResources().getDisplayMetrics();
return Math.min(positionY, displayMetrics.heightPixels - height);
}
@Override
public void hide() {
super.hide();
}
private void updateSuggestions() {
Spannable spannable = (Spannable) TextView.this.mText;
SuggestionSpan[] suggestionSpans = getSuggestionSpans();
final int nbSpans = suggestionSpans.length;
mNumberOfSuggestions = 0;
int spanUnionStart = mText.length();
int spanUnionEnd = 0;
SuggestionSpan misspelledSpan = null;
int underlineColor = 0;
for (int spanIndex = 0; spanIndex < nbSpans; spanIndex++) {
SuggestionSpan suggestionSpan = suggestionSpans[spanIndex];
final int spanStart = spannable.getSpanStart(suggestionSpan);
final int spanEnd = spannable.getSpanEnd(suggestionSpan);
spanUnionStart = Math.min(spanStart, spanUnionStart);
spanUnionEnd = Math.max(spanEnd, spanUnionEnd);
if ((suggestionSpan.getFlags() & SuggestionSpan.FLAG_MISSPELLED) != 0) {
misspelledSpan = suggestionSpan;
}
// The first span dictates the background color of the highlighted text
if (spanIndex == 0) underlineColor = suggestionSpan.getUnderlineColor();
String[] suggestions = suggestionSpan.getSuggestions();
int nbSuggestions = suggestions.length;
for (int suggestionIndex = 0; suggestionIndex < nbSuggestions; suggestionIndex++) {
SuggestionInfo suggestionInfo = mSuggestionInfos[mNumberOfSuggestions];
suggestionInfo.suggestionSpan = suggestionSpan;
suggestionInfo.suggestionIndex = suggestionIndex;
suggestionInfo.text.replace(0, suggestionInfo.text.length(),
suggestions[suggestionIndex]);
mNumberOfSuggestions++;
if (mNumberOfSuggestions == MAX_NUMBER_SUGGESTIONS) {
// Also end outer for loop
spanIndex = nbSpans;
break;
}
}
}
for (int i = 0; i < mNumberOfSuggestions; i++) {
highlightTextDifferences(mSuggestionInfos[i], spanUnionStart, spanUnionEnd);
}
// Add to dictionary item if there is a span with the misspelled flag
if (misspelledSpan != null) {
final int misspelledStart = spannable.getSpanStart(misspelledSpan);
final int misspelledEnd = spannable.getSpanEnd(misspelledSpan);
if (misspelledStart >= 0 && misspelledEnd > misspelledStart) {
SuggestionInfo suggestionInfo = mSuggestionInfos[mNumberOfSuggestions];
suggestionInfo.suggestionSpan = misspelledSpan;
suggestionInfo.suggestionIndex = ADD_TO_DICTIONARY;
suggestionInfo.text.replace(0, suggestionInfo.text.length(),
getContext().getString(com.android.internal.R.string.addToDictionary));
suggestionInfo.text.setSpan(suggestionInfo.highlightSpan, 0, 0,
Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
mNumberOfSuggestions++;
}
}
// Delete item
SuggestionInfo suggestionInfo = mSuggestionInfos[mNumberOfSuggestions];
suggestionInfo.suggestionSpan = null;
suggestionInfo.suggestionIndex = DELETE_TEXT;
suggestionInfo.text.replace(0, suggestionInfo.text.length(),
getContext().getString(com.android.internal.R.string.deleteText));
suggestionInfo.text.setSpan(suggestionInfo.highlightSpan, 0, 0,
Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
mNumberOfSuggestions++;
if (mSuggestionRangeSpan == null) mSuggestionRangeSpan = new SuggestionRangeSpan();
if (underlineColor == 0) {
// Fallback on the default highlight color when the first span does not provide one
mSuggestionRangeSpan.setBackgroundColor(mHighlightColor);
} else {
final float BACKGROUND_TRANSPARENCY = 0.4f;
final int newAlpha = (int) (Color.alpha(underlineColor) * BACKGROUND_TRANSPARENCY);
mSuggestionRangeSpan.setBackgroundColor(
(underlineColor & 0x00FFFFFF) + (newAlpha << 24));
}
spannable.setSpan(mSuggestionRangeSpan, spanUnionStart, spanUnionEnd,
Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
mSuggestionsAdapter.notifyDataSetChanged();
}
private void highlightTextDifferences(SuggestionInfo suggestionInfo, int unionStart,
int unionEnd) {
final Spannable text = (Spannable) mText;
final int spanStart = text.getSpanStart(suggestionInfo.suggestionSpan);
final int spanEnd = text.getSpanEnd(suggestionInfo.suggestionSpan);
// Adjust the start/end of the suggestion span
suggestionInfo.suggestionStart = spanStart - unionStart;
suggestionInfo.suggestionEnd = suggestionInfo.suggestionStart
+ suggestionInfo.text.length();
suggestionInfo.text.setSpan(suggestionInfo.highlightSpan, 0,
suggestionInfo.text.length(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
// Add the text before and after the span.
suggestionInfo.text.insert(0, mText.toString().substring(unionStart, spanStart));
suggestionInfo.text.append(mText.toString().substring(spanEnd, unionEnd));
}
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
Editable editable = (Editable) mText;
SuggestionInfo suggestionInfo = mSuggestionInfos[position];
if (suggestionInfo.suggestionIndex == DELETE_TEXT) {
final int spanUnionStart = editable.getSpanStart(mSuggestionRangeSpan);
int spanUnionEnd = editable.getSpanEnd(mSuggestionRangeSpan);
if (spanUnionStart >= 0 && spanUnionEnd > spanUnionStart) {
// Do not leave two adjacent spaces after deletion, or one at beginning of text
if (spanUnionEnd < editable.length() &&
Character.isSpaceChar(editable.charAt(spanUnionEnd)) &&
(spanUnionStart == 0 ||
Character.isSpaceChar(editable.charAt(spanUnionStart - 1)))) {
spanUnionEnd = spanUnionEnd + 1;
}
deleteText_internal(spanUnionStart, spanUnionEnd);
}
hide();
return;
}
final int spanStart = editable.getSpanStart(suggestionInfo.suggestionSpan);
final int spanEnd = editable.getSpanEnd(suggestionInfo.suggestionSpan);
if (spanStart < 0 || spanEnd <= spanStart) {
// Span has been removed
hide();
return;
}
final String originalText = mText.toString().substring(spanStart, spanEnd);
if (suggestionInfo.suggestionIndex == ADD_TO_DICTIONARY) {
Intent intent = new Intent(Settings.ACTION_USER_DICTIONARY_INSERT);
intent.putExtra("word", originalText);
intent.putExtra("locale", getTextServicesLocale().toString());
intent.setFlags(intent.getFlags() | Intent.FLAG_ACTIVITY_NEW_TASK);
getContext().startActivity(intent);
// There is no way to know if the word was indeed added. Re-check.
// TODO The ExtractEditText should remove the span in the original text instead
editable.removeSpan(suggestionInfo.suggestionSpan);
updateSpellCheckSpans(spanStart, spanEnd, false);
} else {
// SuggestionSpans are removed by replace: save them before
SuggestionSpan[] suggestionSpans = editable.getSpans(spanStart, spanEnd,
SuggestionSpan.class);
final int length = suggestionSpans.length;
int[] suggestionSpansStarts = new int[length];
int[] suggestionSpansEnds = new int[length];
int[] suggestionSpansFlags = new int[length];
for (int i = 0; i < length; i++) {
final SuggestionSpan suggestionSpan = suggestionSpans[i];
suggestionSpansStarts[i] = editable.getSpanStart(suggestionSpan);
suggestionSpansEnds[i] = editable.getSpanEnd(suggestionSpan);
suggestionSpansFlags[i] = editable.getSpanFlags(suggestionSpan);
// Remove potential misspelled flags
int suggestionSpanFlags = suggestionSpan.getFlags();
if ((suggestionSpanFlags & SuggestionSpan.FLAG_MISSPELLED) > 0) {
suggestionSpanFlags &= ~SuggestionSpan.FLAG_MISSPELLED;
suggestionSpanFlags &= ~SuggestionSpan.FLAG_EASY_CORRECT;
suggestionSpan.setFlags(suggestionSpanFlags);
}
}
final int suggestionStart = suggestionInfo.suggestionStart;
final int suggestionEnd = suggestionInfo.suggestionEnd;
final String suggestion = suggestionInfo.text.subSequence(
suggestionStart, suggestionEnd).toString();
replaceText_internal(spanStart, spanEnd, suggestion);
// Notify source IME of the suggestion pick. Do this before swaping texts.
if (!TextUtils.isEmpty(
suggestionInfo.suggestionSpan.getNotificationTargetClassName())) {
InputMethodManager imm = InputMethodManager.peekInstance();
if (imm != null) {
imm.notifySuggestionPicked(suggestionInfo.suggestionSpan, originalText,
suggestionInfo.suggestionIndex);
}
}
// Swap text content between actual text and Suggestion span
String[] suggestions = suggestionInfo.suggestionSpan.getSuggestions();
suggestions[suggestionInfo.suggestionIndex] = originalText;
// Restore previous SuggestionSpans
final int lengthDifference = suggestion.length() - (spanEnd - spanStart);
for (int i = 0; i < length; i++) {
// Only spans that include the modified region make sense after replacement
// Spans partially included in the replaced region are removed, there is no
// way to assign them a valid range after replacement
if (suggestionSpansStarts[i] <= spanStart &&
suggestionSpansEnds[i] >= spanEnd) {
setSpan_internal(suggestionSpans[i], suggestionSpansStarts[i],
suggestionSpansEnds[i] + lengthDifference, suggestionSpansFlags[i]);
}
}
// Move cursor at the end of the replaced word
final int newCursorPosition = spanEnd + lengthDifference;
setCursorPosition_internal(newCursorPosition, newCursorPosition);
}
hide();
}
}
/**
* Removes the suggestion spans.
*/
CharSequence removeSuggestionSpans(CharSequence text) {
if (text instanceof Spanned) {
Spannable spannable;
if (text instanceof Spannable) {
spannable = (Spannable) text;
} else {
spannable = new SpannableString(text);
text = spannable;
}
SuggestionSpan[] spans = spannable.getSpans(0, text.length(), SuggestionSpan.class);
for (int i = 0; i < spans.length; i++) {
spannable.removeSpan(spans[i]);
}
}
return text;
}
void showSuggestions() {
if (mSuggestionsPopupWindow == null) {
mSuggestionsPopupWindow = new SuggestionsPopupWindow();
}
hideControllers();
mSuggestionsPopupWindow.show();
}
boolean areSuggestionsShown() {
return mSuggestionsPopupWindow != null && mSuggestionsPopupWindow.isShowing();
}
/**
* Return whether or not suggestions are enabled on this TextView. The suggestions are generated
* by the IME or by the spell checker as the user types. This is done by adding
* {@link SuggestionSpan}s to the text.
*
* When suggestions are enabled (default), this list of suggestions will be displayed when the
* user asks for them on these parts of the text. This value depends on the inputType of this
* TextView.
*
* The class of the input type must be {@link InputType#TYPE_CLASS_TEXT}.
*
* In addition, the type variation must be one of
* {@link InputType#TYPE_TEXT_VARIATION_NORMAL},
* {@link InputType#TYPE_TEXT_VARIATION_EMAIL_SUBJECT},
* {@link InputType#TYPE_TEXT_VARIATION_LONG_MESSAGE},
* {@link InputType#TYPE_TEXT_VARIATION_SHORT_MESSAGE} or
* {@link InputType#TYPE_TEXT_VARIATION_WEB_EDIT_TEXT}.
*
* And finally, the {@link InputType#TYPE_TEXT_FLAG_NO_SUGGESTIONS} flag must <i>not</i> be set.
*
* @return true if the suggestions popup window is enabled, based on the inputType.
*/
public boolean isSuggestionsEnabled() {
if ((mInputType & InputType.TYPE_MASK_CLASS) != InputType.TYPE_CLASS_TEXT) return false;
if ((mInputType & InputType.TYPE_TEXT_FLAG_NO_SUGGESTIONS) > 0) return false;
final int variation = mInputType & EditorInfo.TYPE_MASK_VARIATION;
return (variation == EditorInfo.TYPE_TEXT_VARIATION_NORMAL ||
variation == EditorInfo.TYPE_TEXT_VARIATION_EMAIL_SUBJECT ||
variation == EditorInfo.TYPE_TEXT_VARIATION_LONG_MESSAGE ||
variation == EditorInfo.TYPE_TEXT_VARIATION_SHORT_MESSAGE ||
variation == EditorInfo.TYPE_TEXT_VARIATION_WEB_EDIT_TEXT);
}
/**
* If provided, this ActionMode.Callback will be used to create the ActionMode when text
* selection is initiated in this View.
*
* The standard implementation populates the menu with a subset of Select All, Cut, Copy and
* Paste actions, depending on what this View supports.
*
* A custom implementation can add new entries in the default menu in its
* {@link android.view.ActionMode.Callback#onPrepareActionMode(ActionMode, Menu)} method. The
* default actions can also be removed from the menu using {@link Menu#removeItem(int)} and
* passing {@link android.R.id#selectAll}, {@link android.R.id#cut}, {@link android.R.id#copy}
* or {@link android.R.id#paste} ids as parameters.
*
* Returning false from
* {@link android.view.ActionMode.Callback#onCreateActionMode(ActionMode, Menu)} will prevent
* the action mode from being started.
*
* Action click events should be handled by the custom implementation of
* {@link android.view.ActionMode.Callback#onActionItemClicked(ActionMode, MenuItem)}.
*
* Note that text selection mode is not started when a TextView receives focus and the
* {@link android.R.attr#selectAllOnFocus} flag has been set. The content is highlighted in
* that case, to allow for quick replacement.
*/
public void setCustomSelectionActionModeCallback(ActionMode.Callback actionModeCallback) {
mCustomSelectionActionModeCallback = actionModeCallback;
}
/**
* Retrieves the value set in {@link #setCustomSelectionActionModeCallback}. Default is null.
*
* @return The current custom selection callback.
*/
public ActionMode.Callback getCustomSelectionActionModeCallback() {
return mCustomSelectionActionModeCallback;
}
/**
*
* @return true if the selection mode was actually started.
*/
private boolean startSelectionActionMode() {
if (mSelectionActionMode != null) {
// Selection action mode is already started
return false;
}
if (!canSelectText() || !requestFocus()) {
Log.w(LOG_TAG, "TextView does not support text selection. Action mode cancelled.");
return false;
}
if (!hasSelection()) {
// There may already be a selection on device rotation
if (!selectCurrentWord()) {
// No word found under cursor or text selection not permitted.
return false;
}
}
boolean willExtract = extractedTextModeWillBeStarted();
// Do not start the action mode when extracted text will show up full screen, thus
// immediately hiding the newly created action bar, which would be visually distracting.
if (!willExtract) {
ActionMode.Callback actionModeCallback = new SelectionActionModeCallback();
mSelectionActionMode = startActionMode(actionModeCallback);
}
final boolean selectionStarted = mSelectionActionMode != null || willExtract;
if (selectionStarted && !mTextIsSelectable && mSoftInputShownOnFocus) {
// Show the IME to be able to replace text, except when selecting non editable text.
final InputMethodManager imm = InputMethodManager.peekInstance();
if (imm != null) {
imm.showSoftInput(this, 0, null);
}
}
return selectionStarted;
}
private boolean extractedTextModeWillBeStarted() {
if (!(this instanceof ExtractEditText)) {
final InputMethodManager imm = InputMethodManager.peekInstance();
return imm != null && imm.isFullscreenMode();
}
return false;
}
private void stopSelectionActionMode() {
if (mSelectionActionMode != null) {
// This will hide the mSelectionModifierCursorController
mSelectionActionMode.finish();
}
}
/**
* Paste clipboard content between min and max positions.
*/
private void paste(int min, int max) {
ClipboardManager clipboard =
(ClipboardManager) getContext().getSystemService(Context.CLIPBOARD_SERVICE);
ClipData clip = clipboard.getPrimaryClip();
if (clip != null) {
boolean didFirst = false;
for (int i=0; i<clip.getItemCount(); i++) {
CharSequence paste = clip.getItemAt(i).coerceToText(getContext());
if (paste != null) {
if (!didFirst) {
long minMax = prepareSpacesAroundPaste(min, max, paste);
min = extractRangeStartFromLong(minMax);
max = extractRangeEndFromLong(minMax);
Selection.setSelection((Spannable) mText, max);
((Editable) mText).replace(min, max, paste);
didFirst = true;
} else {
((Editable) mText).insert(getSelectionEnd(), "\n");
((Editable) mText).insert(getSelectionEnd(), paste);
}
}
}
stopSelectionActionMode();
sLastCutOrCopyTime = 0;
}
}
private void setPrimaryClip(ClipData clip) {
ClipboardManager clipboard = (ClipboardManager) getContext().
getSystemService(Context.CLIPBOARD_SERVICE);
clipboard.setPrimaryClip(clip);
sLastCutOrCopyTime = SystemClock.uptimeMillis();
}
/**
* An ActionMode Callback class that is used to provide actions while in text selection mode.
*
* The default callback provides a subset of Select All, Cut, Copy and Paste actions, depending
* on which of these this TextView supports.
*/
private class SelectionActionModeCallback implements ActionMode.Callback {
@Override
public boolean onCreateActionMode(ActionMode mode, Menu menu) {
TypedArray styledAttributes = mContext.obtainStyledAttributes(
com.android.internal.R.styleable.SelectionModeDrawables);
boolean allowText = getContext().getResources().getBoolean(
com.android.internal.R.bool.config_allowActionMenuItemTextWithIcon);
mode.setTitle(allowText ?
mContext.getString(com.android.internal.R.string.textSelectionCABTitle) : null);
mode.setSubtitle(null);
int selectAllIconId = 0; // No icon by default
if (!allowText) {
// Provide an icon, text will not be displayed on smaller screens.
selectAllIconId = styledAttributes.getResourceId(
R.styleable.SelectionModeDrawables_actionModeSelectAllDrawable, 0);
}
menu.add(0, ID_SELECT_ALL, 0, com.android.internal.R.string.selectAll).
setIcon(selectAllIconId).
setAlphabeticShortcut('a').
setShowAsAction(
MenuItem.SHOW_AS_ACTION_ALWAYS | MenuItem.SHOW_AS_ACTION_WITH_TEXT);
if (canCut()) {
menu.add(0, ID_CUT, 0, com.android.internal.R.string.cut).
setIcon(styledAttributes.getResourceId(
R.styleable.SelectionModeDrawables_actionModeCutDrawable, 0)).
setAlphabeticShortcut('x').
setShowAsAction(
MenuItem.SHOW_AS_ACTION_ALWAYS | MenuItem.SHOW_AS_ACTION_WITH_TEXT);
}
if (canCopy()) {
menu.add(0, ID_COPY, 0, com.android.internal.R.string.copy).
setIcon(styledAttributes.getResourceId(
R.styleable.SelectionModeDrawables_actionModeCopyDrawable, 0)).
setAlphabeticShortcut('c').
setShowAsAction(
MenuItem.SHOW_AS_ACTION_ALWAYS | MenuItem.SHOW_AS_ACTION_WITH_TEXT);
}
if (canPaste()) {
menu.add(0, ID_PASTE, 0, com.android.internal.R.string.paste).
setIcon(styledAttributes.getResourceId(
R.styleable.SelectionModeDrawables_actionModePasteDrawable, 0)).
setAlphabeticShortcut('v').
setShowAsAction(
MenuItem.SHOW_AS_ACTION_ALWAYS | MenuItem.SHOW_AS_ACTION_WITH_TEXT);
}
styledAttributes.recycle();
if (mCustomSelectionActionModeCallback != null) {
if (!mCustomSelectionActionModeCallback.onCreateActionMode(mode, menu)) {
// The custom mode can choose to cancel the action mode
return false;
}
}
if (menu.hasVisibleItems() || mode.getCustomView() != null) {
getSelectionController().show();
return true;
} else {
return false;
}
}
@Override
public boolean onPrepareActionMode(ActionMode mode, Menu menu) {
if (mCustomSelectionActionModeCallback != null) {
return mCustomSelectionActionModeCallback.onPrepareActionMode(mode, menu);
}
return true;
}
@Override
public boolean onActionItemClicked(ActionMode mode, MenuItem item) {
if (mCustomSelectionActionModeCallback != null &&
mCustomSelectionActionModeCallback.onActionItemClicked(mode, item)) {
return true;
}
return onTextContextMenuItem(item.getItemId());
}
@Override
public void onDestroyActionMode(ActionMode mode) {
if (mCustomSelectionActionModeCallback != null) {
mCustomSelectionActionModeCallback.onDestroyActionMode(mode);
}
Selection.setSelection((Spannable) mText, getSelectionEnd());
if (mSelectionModifierCursorController != null) {
mSelectionModifierCursorController.hide();
}
mSelectionActionMode = null;
}
}
private class ActionPopupWindow extends PinnedPopupWindow implements OnClickListener {
private static final int POPUP_TEXT_LAYOUT =
com.android.internal.R.layout.text_edit_action_popup_text;
private TextView mPasteTextView;
private TextView mReplaceTextView;
@Override
protected void createPopupWindow() {
mPopupWindow = new PopupWindow(TextView.this.mContext, null,
com.android.internal.R.attr.textSelectHandleWindowStyle);
mPopupWindow.setClippingEnabled(true);
}
@Override
protected void initContentView() {
LinearLayout linearLayout = new LinearLayout(TextView.this.getContext());
linearLayout.setOrientation(LinearLayout.HORIZONTAL);
mContentView = linearLayout;
mContentView.setBackgroundResource(
com.android.internal.R.drawable.text_edit_paste_window);
LayoutInflater inflater = (LayoutInflater)TextView.this.mContext.
getSystemService(Context.LAYOUT_INFLATER_SERVICE);
LayoutParams wrapContent = new LayoutParams(
ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT);
mPasteTextView = (TextView) inflater.inflate(POPUP_TEXT_LAYOUT, null);
mPasteTextView.setLayoutParams(wrapContent);
mContentView.addView(mPasteTextView);
mPasteTextView.setText(com.android.internal.R.string.paste);
mPasteTextView.setOnClickListener(this);
mReplaceTextView = (TextView) inflater.inflate(POPUP_TEXT_LAYOUT, null);
mReplaceTextView.setLayoutParams(wrapContent);
mContentView.addView(mReplaceTextView);
mReplaceTextView.setText(com.android.internal.R.string.replace);
mReplaceTextView.setOnClickListener(this);
}
@Override
public void show() {
boolean canPaste = canPaste();
boolean canSuggest = isSuggestionsEnabled() && isCursorInsideSuggestionSpan();
mPasteTextView.setVisibility(canPaste ? View.VISIBLE : View.GONE);
mReplaceTextView.setVisibility(canSuggest ? View.VISIBLE : View.GONE);
if (!canPaste && !canSuggest) return;
super.show();
}
@Override
public void onClick(View view) {
if (view == mPasteTextView && canPaste()) {
onTextContextMenuItem(ID_PASTE);
hide();
} else if (view == mReplaceTextView) {
final int middle = (getSelectionStart() + getSelectionEnd()) / 2;
stopSelectionActionMode();
Selection.setSelection((Spannable) mText, middle);
showSuggestions();
}
}
@Override
protected int getTextOffset() {
return (getSelectionStart() + getSelectionEnd()) / 2;
}
@Override
protected int getVerticalLocalPosition(int line) {
return mLayout.getLineTop(line) - mContentView.getMeasuredHeight();
}
@Override
protected int clipVertically(int positionY) {
if (positionY < 0) {
final int offset = getTextOffset();
final int line = mLayout.getLineForOffset(offset);
positionY += mLayout.getLineBottom(line) - mLayout.getLineTop(line);
positionY += mContentView.getMeasuredHeight();
// Assumes insertion and selection handles share the same height
final Drawable handle = mContext.getResources().getDrawable(mTextSelectHandleRes);
positionY += handle.getIntrinsicHeight();
}
return positionY;
}
}
private abstract class HandleView extends View implements TextViewPositionListener {
protected Drawable mDrawable;
protected Drawable mDrawableLtr;
protected Drawable mDrawableRtl;
private final PopupWindow mContainer;
// Position with respect to the parent TextView
private int mPositionX, mPositionY;
private boolean mIsDragging;
// Offset from touch position to mPosition
private float mTouchToWindowOffsetX, mTouchToWindowOffsetY;
protected int mHotspotX;
// Offsets the hotspot point up, so that cursor is not hidden by the finger when moving up
private float mTouchOffsetY;
// Where the touch position should be on the handle to ensure a maximum cursor visibility
private float mIdealVerticalOffset;
// Parent's (TextView) previous position in window
private int mLastParentX, mLastParentY;
// Transient action popup window for Paste and Replace actions
protected ActionPopupWindow mActionPopupWindow;
// Previous text character offset
private int mPreviousOffset = -1;
// Previous text character offset
private boolean mPositionHasChanged = true;
// Used to delay the appearance of the action popup window
private Runnable mActionPopupShower;
public HandleView(Drawable drawableLtr, Drawable drawableRtl) {
super(TextView.this.mContext);
mContainer = new PopupWindow(TextView.this.mContext, null,
com.android.internal.R.attr.textSelectHandleWindowStyle);
mContainer.setSplitTouchEnabled(true);
mContainer.setClippingEnabled(false);
mContainer.setWindowLayoutType(WindowManager.LayoutParams.TYPE_APPLICATION_SUB_PANEL);
mContainer.setContentView(this);
mDrawableLtr = drawableLtr;
mDrawableRtl = drawableRtl;
updateDrawable();
final int handleHeight = mDrawable.getIntrinsicHeight();
mTouchOffsetY = -0.3f * handleHeight;
mIdealVerticalOffset = 0.7f * handleHeight;
}
protected void updateDrawable() {
final int offset = getCurrentCursorOffset();
final boolean isRtlCharAtOffset = mLayout.isRtlCharAt(offset);
mDrawable = isRtlCharAtOffset ? mDrawableRtl : mDrawableLtr;
mHotspotX = getHotspotX(mDrawable, isRtlCharAtOffset);
}
protected abstract int getHotspotX(Drawable drawable, boolean isRtlRun);
// Touch-up filter: number of previous positions remembered
private static final int HISTORY_SIZE = 5;
private static final int TOUCH_UP_FILTER_DELAY_AFTER = 150;
private static final int TOUCH_UP_FILTER_DELAY_BEFORE = 350;
private final long[] mPreviousOffsetsTimes = new long[HISTORY_SIZE];
private final int[] mPreviousOffsets = new int[HISTORY_SIZE];
private int mPreviousOffsetIndex = 0;
private int mNumberPreviousOffsets = 0;
private void startTouchUpFilter(int offset) {
mNumberPreviousOffsets = 0;
addPositionToTouchUpFilter(offset);
}
private void addPositionToTouchUpFilter(int offset) {
mPreviousOffsetIndex = (mPreviousOffsetIndex + 1) % HISTORY_SIZE;
mPreviousOffsets[mPreviousOffsetIndex] = offset;
mPreviousOffsetsTimes[mPreviousOffsetIndex] = SystemClock.uptimeMillis();
mNumberPreviousOffsets++;
}
private void filterOnTouchUp() {
final long now = SystemClock.uptimeMillis();
int i = 0;
int index = mPreviousOffsetIndex;
final int iMax = Math.min(mNumberPreviousOffsets, HISTORY_SIZE);
while (i < iMax && (now - mPreviousOffsetsTimes[index]) < TOUCH_UP_FILTER_DELAY_AFTER) {
i++;
index = (mPreviousOffsetIndex - i + HISTORY_SIZE) % HISTORY_SIZE;
}
if (i > 0 && i < iMax &&
(now - mPreviousOffsetsTimes[index]) > TOUCH_UP_FILTER_DELAY_BEFORE) {
positionAtCursorOffset(mPreviousOffsets[index], false);
}
}
public boolean offsetHasBeenChanged() {
return mNumberPreviousOffsets > 1;
}
@Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
setMeasuredDimension(mDrawable.getIntrinsicWidth(), mDrawable.getIntrinsicHeight());
}
public void show() {
if (isShowing()) return;
getPositionListener().addSubscriber(this, true /* local position may change */);
// Make sure the offset is always considered new, even when focusing at same position
mPreviousOffset = -1;
positionAtCursorOffset(getCurrentCursorOffset(), false);
hideActionPopupWindow();
}
protected void dismiss() {
mIsDragging = false;
mContainer.dismiss();
onDetached();
}
public void hide() {
dismiss();
TextView.this.getPositionListener().removeSubscriber(this);
}
void showActionPopupWindow(int delay) {
if (mActionPopupWindow == null) {
mActionPopupWindow = new ActionPopupWindow();
}
if (mActionPopupShower == null) {
mActionPopupShower = new Runnable() {
public void run() {
mActionPopupWindow.show();
}
};
} else {
TextView.this.removeCallbacks(mActionPopupShower);
}
TextView.this.postDelayed(mActionPopupShower, delay);
}
protected void hideActionPopupWindow() {
if (mActionPopupShower != null) {
TextView.this.removeCallbacks(mActionPopupShower);
}
if (mActionPopupWindow != null) {
mActionPopupWindow.hide();
}
}
public boolean isShowing() {
return mContainer.isShowing();
}
private boolean isVisible() {
// Always show a dragging handle.
if (mIsDragging) {
return true;
}
if (isInBatchEditMode()) {
return false;
}
return TextView.this.isPositionVisible(mPositionX + mHotspotX, mPositionY);
}
public abstract int getCurrentCursorOffset();
protected abstract void updateSelection(int offset);
public abstract void updatePosition(float x, float y);
protected void positionAtCursorOffset(int offset, boolean parentScrolled) {
// A HandleView relies on the layout, which may be nulled by external methods
if (mLayout == null) {
// Will update controllers' state, hiding them and stopping selection mode if needed
prepareCursorControllers();
return;
}
if (offset != mPreviousOffset || parentScrolled) {
updateSelection(offset);
addPositionToTouchUpFilter(offset);
final int line = mLayout.getLineForOffset(offset);
mPositionX = (int) (mLayout.getPrimaryHorizontal(offset) - 0.5f - mHotspotX);
mPositionY = mLayout.getLineBottom(line);
// Take TextView's padding and scroll into account.
mPositionX += viewportToContentHorizontalOffset();
mPositionY += viewportToContentVerticalOffset();
mPreviousOffset = offset;
mPositionHasChanged = true;
}
}
public void updatePosition(int parentPositionX, int parentPositionY,
boolean parentPositionChanged, boolean parentScrolled) {
positionAtCursorOffset(getCurrentCursorOffset(), parentScrolled);
if (parentPositionChanged || mPositionHasChanged) {
if (mIsDragging) {
// Update touchToWindow offset in case of parent scrolling while dragging
if (parentPositionX != mLastParentX || parentPositionY != mLastParentY) {
mTouchToWindowOffsetX += parentPositionX - mLastParentX;
mTouchToWindowOffsetY += parentPositionY - mLastParentY;
mLastParentX = parentPositionX;
mLastParentY = parentPositionY;
}
onHandleMoved();
}
if (isVisible()) {
final int positionX = parentPositionX + mPositionX;
final int positionY = parentPositionY + mPositionY;
if (isShowing()) {
mContainer.update(positionX, positionY, -1, -1);
} else {
mContainer.showAtLocation(TextView.this, Gravity.NO_GRAVITY,
positionX, positionY);
}
} else {
if (isShowing()) {
dismiss();
}
}
mPositionHasChanged = false;
}
}
@Override
protected void onDraw(Canvas c) {
mDrawable.setBounds(0, 0, mRight - mLeft, mBottom - mTop);
mDrawable.draw(c);
}
@Override
public boolean onTouchEvent(MotionEvent ev) {
switch (ev.getActionMasked()) {
case MotionEvent.ACTION_DOWN: {
startTouchUpFilter(getCurrentCursorOffset());
mTouchToWindowOffsetX = ev.getRawX() - mPositionX;
mTouchToWindowOffsetY = ev.getRawY() - mPositionY;
final PositionListener positionListener = getPositionListener();
mLastParentX = positionListener.getPositionX();
mLastParentY = positionListener.getPositionY();
mIsDragging = true;
break;
}
case MotionEvent.ACTION_MOVE: {
final float rawX = ev.getRawX();
final float rawY = ev.getRawY();
// Vertical hysteresis: vertical down movement tends to snap to ideal offset
final float previousVerticalOffset = mTouchToWindowOffsetY - mLastParentY;
final float currentVerticalOffset = rawY - mPositionY - mLastParentY;
float newVerticalOffset;
if (previousVerticalOffset < mIdealVerticalOffset) {
newVerticalOffset = Math.min(currentVerticalOffset, mIdealVerticalOffset);
newVerticalOffset = Math.max(newVerticalOffset, previousVerticalOffset);
} else {
newVerticalOffset = Math.max(currentVerticalOffset, mIdealVerticalOffset);
newVerticalOffset = Math.min(newVerticalOffset, previousVerticalOffset);
}
mTouchToWindowOffsetY = newVerticalOffset + mLastParentY;
final float newPosX = rawX - mTouchToWindowOffsetX + mHotspotX;
final float newPosY = rawY - mTouchToWindowOffsetY + mTouchOffsetY;
updatePosition(newPosX, newPosY);
break;
}
case MotionEvent.ACTION_UP:
filterOnTouchUp();
mIsDragging = false;
break;
case MotionEvent.ACTION_CANCEL:
mIsDragging = false;
break;
}
return true;
}
public boolean isDragging() {
return mIsDragging;
}
void onHandleMoved() {
hideActionPopupWindow();
}
public void onDetached() {
hideActionPopupWindow();
}
}
private class InsertionHandleView extends HandleView {
private static final int DELAY_BEFORE_HANDLE_FADES_OUT = 4000;
private static final int RECENT_CUT_COPY_DURATION = 15 * 1000; // seconds
// Used to detect taps on the insertion handle, which will affect the ActionPopupWindow
private float mDownPositionX, mDownPositionY;
private Runnable mHider;
public InsertionHandleView(Drawable drawable) {
super(drawable, drawable);
}
@Override
public void show() {
super.show();
final long durationSinceCutOrCopy = SystemClock.uptimeMillis() - sLastCutOrCopyTime;
if (durationSinceCutOrCopy < RECENT_CUT_COPY_DURATION) {
showActionPopupWindow(0);
}
hideAfterDelay();
}
public void showWithActionPopup() {
show();
showActionPopupWindow(0);
}
private void hideAfterDelay() {
removeHiderCallback();
if (mHider == null) {
mHider = new Runnable() {
public void run() {
hide();
}
};
}
TextView.this.postDelayed(mHider, DELAY_BEFORE_HANDLE_FADES_OUT);
}
private void removeHiderCallback() {
if (mHider != null) {
TextView.this.removeCallbacks(mHider);
}
}
@Override
protected int getHotspotX(Drawable drawable, boolean isRtlRun) {
return drawable.getIntrinsicWidth() / 2;
}
@Override
public boolean onTouchEvent(MotionEvent ev) {
final boolean result = super.onTouchEvent(ev);
switch (ev.getActionMasked()) {
case MotionEvent.ACTION_DOWN:
mDownPositionX = ev.getRawX();
mDownPositionY = ev.getRawY();
break;
case MotionEvent.ACTION_UP:
if (!offsetHasBeenChanged()) {
final float deltaX = mDownPositionX - ev.getRawX();
final float deltaY = mDownPositionY - ev.getRawY();
final float distanceSquared = deltaX * deltaX + deltaY * deltaY;
if (distanceSquared < mSquaredTouchSlopDistance) {
if (mActionPopupWindow != null && mActionPopupWindow.isShowing()) {
// Tapping on the handle dismisses the displayed action popup
mActionPopupWindow.hide();
} else {
showWithActionPopup();
}
}
}
hideAfterDelay();
break;
case MotionEvent.ACTION_CANCEL:
hideAfterDelay();
break;
default:
break;
}
return result;
}
@Override
public int getCurrentCursorOffset() {
return TextView.this.getSelectionStart();
}
@Override
public void updateSelection(int offset) {
Selection.setSelection((Spannable) mText, offset);
}
@Override
public void updatePosition(float x, float y) {
positionAtCursorOffset(getOffsetForPosition(x, y), false);
}
@Override
void onHandleMoved() {
super.onHandleMoved();
removeHiderCallback();
}
@Override
public void onDetached() {
super.onDetached();
removeHiderCallback();
}
}
private class SelectionStartHandleView extends HandleView {
public SelectionStartHandleView(Drawable drawableLtr, Drawable drawableRtl) {
super(drawableLtr, drawableRtl);
}
@Override
protected int getHotspotX(Drawable drawable, boolean isRtlRun) {
if (isRtlRun) {
return drawable.getIntrinsicWidth() / 4;
} else {
return (drawable.getIntrinsicWidth() * 3) / 4;
}
}
@Override
public int getCurrentCursorOffset() {
return TextView.this.getSelectionStart();
}
@Override
public void updateSelection(int offset) {
Selection.setSelection((Spannable) mText, offset, getSelectionEnd());
updateDrawable();
}
@Override
public void updatePosition(float x, float y) {
int offset = getOffsetForPosition(x, y);
// Handles can not cross and selection is at least one character
final int selectionEnd = getSelectionEnd();
if (offset >= selectionEnd) offset = Math.max(0, selectionEnd - 1);
positionAtCursorOffset(offset, false);
}
public ActionPopupWindow getActionPopupWindow() {
return mActionPopupWindow;
}
}
private class SelectionEndHandleView extends HandleView {
public SelectionEndHandleView(Drawable drawableLtr, Drawable drawableRtl) {
super(drawableLtr, drawableRtl);
}
@Override
protected int getHotspotX(Drawable drawable, boolean isRtlRun) {
if (isRtlRun) {
return (drawable.getIntrinsicWidth() * 3) / 4;
} else {
return drawable.getIntrinsicWidth() / 4;
}
}
@Override
public int getCurrentCursorOffset() {
return TextView.this.getSelectionEnd();
}
@Override
public void updateSelection(int offset) {
Selection.setSelection((Spannable) mText, getSelectionStart(), offset);
updateDrawable();
}
@Override
public void updatePosition(float x, float y) {
int offset = getOffsetForPosition(x, y);
// Handles can not cross and selection is at least one character
final int selectionStart = getSelectionStart();
if (offset <= selectionStart) offset = Math.min(selectionStart + 1, mText.length());
positionAtCursorOffset(offset, false);
}
public void setActionPopupWindow(ActionPopupWindow actionPopupWindow) {
mActionPopupWindow = actionPopupWindow;
}
}
/**
* A CursorController instance can be used to control a cursor in the text.
* It is not used outside of {@link TextView}.
* @hide
*/
private interface CursorController extends ViewTreeObserver.OnTouchModeChangeListener {
/**
* Makes the cursor controller visible on screen. Will be drawn by {@link #draw(Canvas)}.
* See also {@link #hide()}.
*/
public void show();
/**
* Hide the cursor controller from screen.
* See also {@link #show()}.
*/
public void hide();
/**
* Called when the view is detached from window. Perform house keeping task, such as
* stopping Runnable thread that would otherwise keep a reference on the context, thus
* preventing the activity from being recycled.
*/
public void onDetached();
}
private class InsertionPointCursorController implements CursorController {
private InsertionHandleView mHandle;
public void show() {
getHandle().show();
}
public void showWithActionPopup() {
getHandle().showWithActionPopup();
}
public void hide() {
if (mHandle != null) {
mHandle.hide();
}
}
public void onTouchModeChanged(boolean isInTouchMode) {
if (!isInTouchMode) {
hide();
}
}
private InsertionHandleView getHandle() {
if (mSelectHandleCenter == null) {
mSelectHandleCenter = mContext.getResources().getDrawable(
mTextSelectHandleRes);
}
if (mHandle == null) {
mHandle = new InsertionHandleView(mSelectHandleCenter);
}
return mHandle;
}
@Override
public void onDetached() {
final ViewTreeObserver observer = getViewTreeObserver();
observer.removeOnTouchModeChangeListener(this);
if (mHandle != null) mHandle.onDetached();
}
}
private class SelectionModifierCursorController implements CursorController {
private static final int DELAY_BEFORE_REPLACE_ACTION = 200; // milliseconds
// The cursor controller handles, lazily created when shown.
private SelectionStartHandleView mStartHandle;
private SelectionEndHandleView mEndHandle;
// The offsets of that last touch down event. Remembered to start selection there.
private int mMinTouchOffset, mMaxTouchOffset;
// Double tap detection
private long mPreviousTapUpTime = 0;
private float mPreviousTapPositionX, mPreviousTapPositionY;
SelectionModifierCursorController() {
resetTouchOffsets();
}
public void show() {
if (isInBatchEditMode()) {
return;
}
initDrawables();
initHandles();
hideInsertionPointCursorController();
}
private void initDrawables() {
if (mSelectHandleLeft == null) {
mSelectHandleLeft = mContext.getResources().getDrawable(
mTextSelectHandleLeftRes);
}
if (mSelectHandleRight == null) {
mSelectHandleRight = mContext.getResources().getDrawable(
mTextSelectHandleRightRes);
}
}
private void initHandles() {
// Lazy object creation has to be done before updatePosition() is called.
if (mStartHandle == null) {
mStartHandle = new SelectionStartHandleView(mSelectHandleLeft, mSelectHandleRight);
}
if (mEndHandle == null) {
mEndHandle = new SelectionEndHandleView(mSelectHandleRight, mSelectHandleLeft);
}
mStartHandle.show();
mEndHandle.show();
// Make sure both left and right handles share the same ActionPopupWindow (so that
// moving any of the handles hides the action popup).
mStartHandle.showActionPopupWindow(DELAY_BEFORE_REPLACE_ACTION);
mEndHandle.setActionPopupWindow(mStartHandle.getActionPopupWindow());
hideInsertionPointCursorController();
}
public void hide() {
if (mStartHandle != null) mStartHandle.hide();
if (mEndHandle != null) mEndHandle.hide();
}
public void onTouchEvent(MotionEvent event) {
// This is done even when the View does not have focus, so that long presses can start
// selection and tap can move cursor from this tap position.
switch (event.getActionMasked()) {
case MotionEvent.ACTION_DOWN:
final float x = event.getX();
final float y = event.getY();
// Remember finger down position, to be able to start selection from there
mMinTouchOffset = mMaxTouchOffset = getOffsetForPosition(x, y);
// Double tap detection
long duration = SystemClock.uptimeMillis() - mPreviousTapUpTime;
if (duration <= ViewConfiguration.getDoubleTapTimeout() &&
isPositionOnText(x, y)) {
final float deltaX = x - mPreviousTapPositionX;
final float deltaY = y - mPreviousTapPositionY;
final float distanceSquared = deltaX * deltaX + deltaY * deltaY;
if (distanceSquared < mSquaredTouchSlopDistance) {
startSelectionActionMode();
mDiscardNextActionUp = true;
}
}
mPreviousTapPositionX = x;
mPreviousTapPositionY = y;
break;
case MotionEvent.ACTION_POINTER_DOWN:
case MotionEvent.ACTION_POINTER_UP:
// Handle multi-point gestures. Keep min and max offset positions.
// Only activated for devices that correctly handle multi-touch.
if (mContext.getPackageManager().hasSystemFeature(
PackageManager.FEATURE_TOUCHSCREEN_MULTITOUCH_DISTINCT)) {
updateMinAndMaxOffsets(event);
}
break;
case MotionEvent.ACTION_UP:
mPreviousTapUpTime = SystemClock.uptimeMillis();
break;
}
}
/**
* @param event
*/
private void updateMinAndMaxOffsets(MotionEvent event) {
int pointerCount = event.getPointerCount();
for (int index = 0; index < pointerCount; index++) {
int offset = getOffsetForPosition(event.getX(index), event.getY(index));
if (offset < mMinTouchOffset) mMinTouchOffset = offset;
if (offset > mMaxTouchOffset) mMaxTouchOffset = offset;
}
}
public int getMinTouchOffset() {
return mMinTouchOffset;
}
public int getMaxTouchOffset() {
return mMaxTouchOffset;
}
public void resetTouchOffsets() {
mMinTouchOffset = mMaxTouchOffset = -1;
}
/**
* @return true iff this controller is currently used to move the selection start.
*/
public boolean isSelectionStartDragged() {
return mStartHandle != null && mStartHandle.isDragging();
}
public void onTouchModeChanged(boolean isInTouchMode) {
if (!isInTouchMode) {
hide();
}
}
@Override
public void onDetached() {
final ViewTreeObserver observer = getViewTreeObserver();
observer.removeOnTouchModeChangeListener(this);
if (mStartHandle != null) mStartHandle.onDetached();
if (mEndHandle != null) mEndHandle.onDetached();
}
}
private void hideInsertionPointCursorController() {
// No need to create the controller to hide it.
if (mInsertionPointCursorController != null) {
mInsertionPointCursorController.hide();
}
}
/**
* Hides the insertion controller and stops text selection mode, hiding the selection controller
*/
private void hideControllers() {
hideCursorControllers();
hideSpanControllers();
}
private void hideSpanControllers() {
if (mChangeWatcher != null) {
mChangeWatcher.hideControllers();
}
}
private void hideCursorControllers() {
if (mSuggestionsPopupWindow != null && !mSuggestionsPopupWindow.isShowingUp()) {
// Should be done before hide insertion point controller since it triggers a show of it
mSuggestionsPopupWindow.hide();
}
hideInsertionPointCursorController();
stopSelectionActionMode();
}
/**
* Get the character offset closest to the specified absolute position. A typical use case is to
* pass the result of {@link MotionEvent#getX()} and {@link MotionEvent#getY()} to this method.
*
* @param x The horizontal absolute position of a point on screen
* @param y The vertical absolute position of a point on screen
* @return the character offset for the character whose position is closest to the specified
* position. Returns -1 if there is no layout.
*/
public int getOffsetForPosition(float x, float y) {
if (getLayout() == null) return -1;
final int line = getLineAtCoordinate(y);
final int offset = getOffsetAtCoordinate(line, x);
return offset;
}
private float convertToLocalHorizontalCoordinate(float x) {
x -= getTotalPaddingLeft();
// Clamp the position to inside of the view.
x = Math.max(0.0f, x);
x = Math.min(getWidth() - getTotalPaddingRight() - 1, x);
x += getScrollX();
return x;
}
private int getLineAtCoordinate(float y) {
y -= getTotalPaddingTop();
// Clamp the position to inside of the view.
y = Math.max(0.0f, y);
y = Math.min(getHeight() - getTotalPaddingBottom() - 1, y);
y += getScrollY();
return getLayout().getLineForVertical((int) y);
}
private int getOffsetAtCoordinate(int line, float x) {
x = convertToLocalHorizontalCoordinate(x);
return getLayout().getOffsetForHorizontal(line, x);
}
/** Returns true if the screen coordinates position (x,y) corresponds to a character displayed
* in the view. Returns false when the position is in the empty space of left/right of text.
*/
private boolean isPositionOnText(float x, float y) {
if (getLayout() == null) return false;
final int line = getLineAtCoordinate(y);
x = convertToLocalHorizontalCoordinate(x);
if (x < getLayout().getLineLeft(line)) return false;
if (x > getLayout().getLineRight(line)) return false;
return true;
}
@Override
public boolean onDragEvent(DragEvent event) {
switch (event.getAction()) {
case DragEvent.ACTION_DRAG_STARTED:
return hasInsertionController();
case DragEvent.ACTION_DRAG_ENTERED:
TextView.this.requestFocus();
return true;
case DragEvent.ACTION_DRAG_LOCATION:
final int offset = getOffsetForPosition(event.getX(), event.getY());
Selection.setSelection((Spannable)mText, offset);
return true;
case DragEvent.ACTION_DROP:
onDrop(event);
return true;
case DragEvent.ACTION_DRAG_ENDED:
case DragEvent.ACTION_DRAG_EXITED:
default:
return true;
}
}
private void onDrop(DragEvent event) {
StringBuilder content = new StringBuilder("");
ClipData clipData = event.getClipData();
final int itemCount = clipData.getItemCount();
for (int i=0; i < itemCount; i++) {
Item item = clipData.getItemAt(i);
content.append(item.coerceToText(TextView.this.mContext));
}
final int offset = getOffsetForPosition(event.getX(), event.getY());
Object localState = event.getLocalState();
DragLocalState dragLocalState = null;
if (localState instanceof DragLocalState) {
dragLocalState = (DragLocalState) localState;
}
boolean dragDropIntoItself = dragLocalState != null &&
dragLocalState.sourceTextView == this;
if (dragDropIntoItself) {
if (offset >= dragLocalState.start && offset < dragLocalState.end) {
// A drop inside the original selection discards the drop.
return;
}
}
final int originalLength = mText.length();
long minMax = prepareSpacesAroundPaste(offset, offset, content);
int min = extractRangeStartFromLong(minMax);
int max = extractRangeEndFromLong(minMax);
Selection.setSelection((Spannable) mText, max);
replaceText_internal(min, max, content);
if (dragDropIntoItself) {
int dragSourceStart = dragLocalState.start;
int dragSourceEnd = dragLocalState.end;
if (max <= dragSourceStart) {
// Inserting text before selection has shifted positions
final int shift = mText.length() - originalLength;
dragSourceStart += shift;
dragSourceEnd += shift;
}
// Delete original selection
deleteText_internal(dragSourceStart, dragSourceEnd);
// Make sure we do not leave two adjacent spaces.
if ((dragSourceStart == 0 ||
Character.isSpaceChar(mTransformed.charAt(dragSourceStart - 1))) &&
(dragSourceStart == mText.length() ||
Character.isSpaceChar(mTransformed.charAt(dragSourceStart)))) {
final int pos = dragSourceStart == mText.length() ?
dragSourceStart - 1 : dragSourceStart;
deleteText_internal(pos, pos + 1);
}
}
}
/**
* @return True if this view supports insertion handles.
*/
boolean hasInsertionController() {
return mInsertionControllerEnabled;
}
/**
* @return True if this view supports selection handles.
*/
boolean hasSelectionController() {
return mSelectionControllerEnabled;
}
InsertionPointCursorController getInsertionController() {
if (!mInsertionControllerEnabled) {
return null;
}
if (mInsertionPointCursorController == null) {
mInsertionPointCursorController = new InsertionPointCursorController();
final ViewTreeObserver observer = getViewTreeObserver();
observer.addOnTouchModeChangeListener(mInsertionPointCursorController);
}
return mInsertionPointCursorController;
}
SelectionModifierCursorController getSelectionController() {
if (!mSelectionControllerEnabled) {
return null;
}
if (mSelectionModifierCursorController == null) {
mSelectionModifierCursorController = new SelectionModifierCursorController();
final ViewTreeObserver observer = getViewTreeObserver();
observer.addOnTouchModeChangeListener(mSelectionModifierCursorController);
}
return mSelectionModifierCursorController;
}
boolean isInBatchEditMode() {
final InputMethodState ims = mInputMethodState;
if (ims != null) {
return ims.mBatchEditNesting > 0;
}
return mInBatchEditControllers;
}
@Override
protected void resolveTextDirection() {
if (hasPasswordTransformationMethod()) {
mTextDir = TextDirectionHeuristics.LOCALE;
return;
}
// Always need to resolve layout direction first
final boolean defaultIsRtl = (getResolvedLayoutDirection() == LAYOUT_DIRECTION_RTL);
// Then resolve text direction on the parent
super.resolveTextDirection();
// Now, we can select the heuristic
int textDir = getResolvedTextDirection();
switch (textDir) {
default:
case TEXT_DIRECTION_FIRST_STRONG:
mTextDir = (defaultIsRtl ? TextDirectionHeuristics.FIRSTSTRONG_RTL :
TextDirectionHeuristics.FIRSTSTRONG_LTR);
break;
case TEXT_DIRECTION_ANY_RTL:
mTextDir = TextDirectionHeuristics.ANYRTL_LTR;
break;
case TEXT_DIRECTION_LTR:
mTextDir = TextDirectionHeuristics.LTR;
break;
case TEXT_DIRECTION_RTL:
mTextDir = TextDirectionHeuristics.RTL;
break;
}
}
/**
* Subclasses will need to override this method to implement their own way of resolving
* drawables depending on the layout direction.
*
* A call to the super method will be required from the subclasses implementation.
*
*/
protected void resolveDrawables() {
// No need to resolve twice
if (mResolvedDrawables) {
return;
}
// No drawable to resolve
if (mDrawables == null) {
return;
}
// No relative drawable to resolve
if (mDrawables.mDrawableStart == null && mDrawables.mDrawableEnd == null) {
mResolvedDrawables = true;
return;
}
Drawables dr = mDrawables;
switch(getResolvedLayoutDirection()) {
case LAYOUT_DIRECTION_RTL:
if (dr.mDrawableStart != null) {
dr.mDrawableRight = dr.mDrawableStart;
dr.mDrawableSizeRight = dr.mDrawableSizeStart;
dr.mDrawableHeightRight = dr.mDrawableHeightStart;
}
if (dr.mDrawableEnd != null) {
dr.mDrawableLeft = dr.mDrawableEnd;
dr.mDrawableSizeLeft = dr.mDrawableSizeEnd;
dr.mDrawableHeightLeft = dr.mDrawableHeightEnd;
}
break;
case LAYOUT_DIRECTION_LTR:
default:
if (dr.mDrawableStart != null) {
dr.mDrawableLeft = dr.mDrawableStart;
dr.mDrawableSizeLeft = dr.mDrawableSizeStart;
dr.mDrawableHeightLeft = dr.mDrawableHeightStart;
}
if (dr.mDrawableEnd != null) {
dr.mDrawableRight = dr.mDrawableEnd;
dr.mDrawableSizeRight = dr.mDrawableSizeEnd;
dr.mDrawableHeightRight = dr.mDrawableHeightEnd;
}
break;
}
mResolvedDrawables = true;
}
protected void resetResolvedDrawables() {
mResolvedDrawables = false;
}
/**
* @hide
*/
protected void viewClicked(InputMethodManager imm) {
if (imm != null) {
imm.viewClicked(this);
}
}
/**
* Deletes the range of text [start, end[.
* @hide
*/
protected void deleteText_internal(int start, int end) {
((Editable) mText).delete(start, end);
}
/**
* Replaces the range of text [start, end[ by replacement text
* @hide
*/
protected void replaceText_internal(int start, int end, CharSequence text) {
((Editable) mText).replace(start, end, text);
}
/**
* Sets a span on the specified range of text
* @hide
*/
protected void setSpan_internal(Object span, int start, int end, int flags) {
((Editable) mText).setSpan(span, start, end, flags);
}
/**
* Moves the cursor to the specified offset position in text
* @hide
*/
protected void setCursorPosition_internal(int start, int end) {
Selection.setSelection(((Editable) mText), start, end);
}
@ViewDebug.ExportedProperty(category = "text")
private CharSequence mText;
private CharSequence mTransformed;
private BufferType mBufferType = BufferType.NORMAL;
private int mInputType = EditorInfo.TYPE_NULL;
private CharSequence mHint;
private Layout mHintLayout;
private KeyListener mInput;
private MovementMethod mMovement;
private TransformationMethod mTransformation;
private boolean mAllowTransformationLengthChange;
private ChangeWatcher mChangeWatcher;
private ArrayList<TextWatcher> mListeners = null;
// display attributes
private final TextPaint mTextPaint;
private boolean mUserSetTextScaleX;
private final Paint mHighlightPaint;
private int mHighlightColor = 0x6633B5E5;
/**
* This is temporarily visible to fix bug 3085564 in webView. Do not rely on
* this field being protected. Will be restored as private when lineHeight
* feature request 3215097 is implemented
* @hide
*/
protected Layout mLayout;
private long mShowCursor;
private Blink mBlink;
private boolean mCursorVisible = true;
// Cursor Controllers.
private InsertionPointCursorController mInsertionPointCursorController;
private SelectionModifierCursorController mSelectionModifierCursorController;
private ActionMode mSelectionActionMode;
private boolean mInsertionControllerEnabled;
private boolean mSelectionControllerEnabled;
private boolean mInBatchEditControllers;
private boolean mSelectAllOnFocus = false;
private int mGravity = Gravity.TOP | Gravity.START;
private boolean mHorizontallyScrolling;
private int mAutoLinkMask;
private boolean mLinksClickable = true;
private float mSpacingMult = 1.0f;
private float mSpacingAdd = 0.0f;
private boolean mTextIsSelectable = false;
private static final int LINES = 1;
private static final int EMS = LINES;
private static final int PIXELS = 2;
private int mMaximum = Integer.MAX_VALUE;
private int mMaxMode = LINES;
private int mMinimum = 0;
private int mMinMode = LINES;
private int mOldMaximum = mMaximum;
private int mOldMaxMode = mMaxMode;
private int mMaxWidth = Integer.MAX_VALUE;
private int mMaxWidthMode = PIXELS;
private int mMinWidth = 0;
private int mMinWidthMode = PIXELS;
private boolean mSingleLine;
private int mDesiredHeightAtMeasure = -1;
private boolean mIncludePad = true;
// tmp primitives, so we don't alloc them on each draw
private Path mHighlightPath;
private boolean mHighlightPathBogus = true;
private static final RectF sTempRect = new RectF();
private static final float[] sTmpPosition = new float[2];
// XXX should be much larger
private static final int VERY_WIDE = 1024*1024;
private static final int BLINK = 500;
private static final int ANIMATED_SCROLL_GAP = 250;
private long mLastScroll;
private Scroller mScroller = null;
private BoringLayout.Metrics mBoring;
private BoringLayout.Metrics mHintBoring;
private BoringLayout mSavedLayout, mSavedHintLayout;
private TextDirectionHeuristic mTextDir = null;
private static final InputFilter[] NO_FILTERS = new InputFilter[0];
private InputFilter[] mFilters = NO_FILTERS;
private static final Spanned EMPTY_SPANNED = new SpannedString("");
private static int DRAG_SHADOW_MAX_TEXT_LENGTH = 20;
// System wide time for last cut or copy action.
private static long sLastCutOrCopyTime;
// Used to highlight a word when it is corrected by the IME
private CorrectionHighlighter mCorrectionHighlighter;
// New state used to change background based on whether this TextView is multiline.
private static final int[] MULTILINE_STATE_SET = { R.attr.state_multiline };
}