package carbon.widget;
import android.annotation.TargetApi;
import android.content.Context;
import android.content.res.ColorStateList;
import android.content.res.TypedArray;
import android.graphics.Canvas;
import android.graphics.PointF;
import android.graphics.PorterDuff;
import android.graphics.drawable.Drawable;
import android.os.Build;
import android.os.Parcel;
import android.os.Parcelable;
import android.support.annotation.NonNull;
import android.support.annotation.Nullable;
import android.support.v4.view.ViewCompat;
import android.util.AttributeSet;
import android.view.Gravity;
import android.view.SoundEffectConstants;
import android.view.ViewDebug;
import android.view.accessibility.AccessibilityEvent;
import android.widget.Checkable;
import android.widget.CompoundButton;
import carbon.Carbon;
import carbon.R;
import carbon.drawable.CheckableDrawable;
import carbon.drawable.DefaultColorStateList;
import carbon.drawable.ripple.RippleDrawable;
public class CheckedTextView extends TextView implements Checkable {
private CheckableDrawable drawable;
private float drawablePadding;
public CheckedTextView(Context context) {
super(context, null, R.attr.checkedTextViewStyle);
initCheckedTextView(null, R.attr.checkedTextViewStyle);
}
public CheckedTextView(Context context, AttributeSet attrs) {
super(context, attrs, R.attr.checkedTextViewStyle);
initCheckedTextView(attrs, R.attr.checkedTextViewStyle);
}
public CheckedTextView(Context context, AttributeSet attrs, int defStyleAttr) {
super(context, attrs, defStyleAttr);
initCheckedTextView(attrs, defStyleAttr);
}
@TargetApi(Build.VERSION_CODES.LOLLIPOP)
public CheckedTextView(Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes) {
super(context, attrs, defStyleAttr, defStyleRes);
initCheckedTextView(attrs, defStyleAttr);
}
public void initCheckedTextView(AttributeSet attrs, int defStyleAttr) {
CheckableDrawable d = new CheckableDrawable(getContext(), R.raw.carbon_checkbox_checked, R.raw.carbon_checkbox_unchecked, R.raw.carbon_checkbox_filled, new PointF(-0.09f, 0.11f));
setButtonDrawable(d);
TypedArray a = getContext().obtainStyledAttributes(attrs, R.styleable.CheckedTextView, defStyleAttr, R.style.carbon_CheckedTextView);
for (int i = 0; i < a.getIndexCount(); i++) {
int attr = a.getIndex(i);
if (attr == R.styleable.CheckedTextView_android_drawablePadding) {
drawablePadding = a.getDimension(attr, 0);
} else if (attr == R.styleable.RadioButton_android_checked) {
setCheckedImmediate(a.getBoolean(attr, false));
}
}
Carbon.initHtmlText(this, a, R.styleable.CheckedTextView_carbon_htmlText);
a.recycle();
}
private boolean isLayoutRtl() {
return ViewCompat.getLayoutDirection(this) == ViewCompat.LAYOUT_DIRECTION_RTL;
}
private boolean mChecked;
private boolean mBroadcasting;
private OnCheckedChangeListener mOnCheckedChangeListener;
private OnCheckedChangeListener mOnCheckedChangeWidgetListener;
private static final int[] CHECKED_STATE_SET = {
android.R.attr.state_checked
};
public void toggle() {
setChecked(!mChecked);
}
@Override
public boolean performClick() {
toggle();
final boolean handled = super.performClick();
if (!handled) {
// View only makes a sound effect if the onClickListener was
// called, so we'll need to make one here instead.
playSoundEffect(SoundEffectConstants.CLICK);
}
return handled;
}
@ViewDebug.ExportedProperty
public boolean isChecked() {
return mChecked;
}
/**
* <p>Changes the checked state of this button.</p>
*
* @param checked true to check the button, false to uncheck it
*/
public void setChecked(boolean checked) {
if (mChecked != checked) {
mChecked = checked;
refreshDrawableState();
//notifyViewAccessibilityStateChangedIfNeeded(
// AccessibilityEvent.CONTENT_CHANGE_TYPE_UNDEFINED);
// Avoid infinite recursions if setChecked() is called from a listener
if (mBroadcasting) {
return;
}
mBroadcasting = true;
if (mOnCheckedChangeListener != null) {
mOnCheckedChangeListener.onCheckedChanged(this, mChecked);
}
if (mOnCheckedChangeWidgetListener != null) {
mOnCheckedChangeWidgetListener.onCheckedChanged(this, mChecked);
}
mBroadcasting = false;
}
}
public void setCheckedImmediate(boolean checked) {
setChecked(checked);
drawable.setChecked(checked);
}
/**
* Register a callback to be invoked when the checked state of this button
* changes.
*
* @param listener the callback to call on checked state change
*/
public void setOnCheckedChangeListener(OnCheckedChangeListener listener) {
mOnCheckedChangeListener = listener;
}
/**
* Register a callback to be invoked when the checked state of this button
* changes. This callback is used for internal purpose only.
*
* @param listener the callback to call on checked state change
* @hide
*/
void setOnCheckedChangeWidgetListener(OnCheckedChangeListener listener) {
mOnCheckedChangeWidgetListener = listener;
}
/**
* Interface definition for a callback to be invoked when the checked state
* of a compound button changed.
*/
public interface OnCheckedChangeListener {
/**
* Called when the checked state of a compound button has changed.
*
* @param buttonView The compound button view whose state has changed.
* @param isChecked The new checked state of buttonView.
*/
void onCheckedChanged(CheckedTextView buttonView, boolean isChecked);
}
/**
* Set the button graphic to a given Drawable
*
* @param d The Drawable to use as the button graphic
*/
public void setButtonDrawable(CheckableDrawable d) {
if (drawable != d) {
if (drawable != null) {
drawable.setCallback(null);
unscheduleDrawable(drawable);
}
drawable = d;
if (d != null) {
d.setCallback(this);
//d.setLayoutDirection(getLayoutDirection());
if (d.isStateful()) {
d.setState(getDrawableState());
}
d.setVisible(getVisibility() == VISIBLE, false);
setMinHeight(d.getIntrinsicHeight());
applyButtonTint();
}
}
}
public void setTint(@Nullable ColorStateList list) {
super.setTint(list);
applyButtonTint();
}
@Override
public void setTint(int color) {
if (color == 0) {
setTint(new DefaultColorStateList(getContext()));
} else {
setTint(ColorStateList.valueOf(color));
}
}
public void setTintMode(@Nullable PorterDuff.Mode mode) {
super.setTintMode(mode);
applyButtonTint();
}
private void applyButtonTint() {
if (drawable != null && getTint() != null && getTintMode() != null) {
drawable = (CheckableDrawable) drawable.mutate();
drawable.setTint(getTint());
drawable.setTintMode(getTintMode());
// The drawable (or one of its children) may not have been
// stateful before applying the tint, so let's try again.
if (drawable.isStateful()) {
drawable.setState(getDrawableState());
}
}
}
@Override
public void onInitializeAccessibilityEvent(AccessibilityEvent event) {
super.onInitializeAccessibilityEvent(event);
event.setClassName(CheckedTextView.class.getName());
event.setChecked(mChecked);
}
/*@Override
public void onInitializeAccessibilityNodeInfo(AccessibilityNodeInfo info) {
super.onInitializeAccessibilityNodeInfo(info);
info.setClassName(CheckedTextView.class.getName());
info.setCheckable(true);
info.setChecked(mChecked);
}*/
@Override
public int getCompoundPaddingLeft() {
int padding = super.getCompoundPaddingLeft();
if (isLayoutRtl()) {
final Drawable buttonDrawable = drawable;
if (buttonDrawable != null) {
padding += buttonDrawable.getIntrinsicWidth() + drawablePadding;
}
}
return padding;
}
@Override
public int getCompoundPaddingRight() {
int padding = super.getCompoundPaddingRight();
if (!isLayoutRtl()) {
final Drawable buttonDrawable = drawable;
if (buttonDrawable != null) {
padding += buttonDrawable.getIntrinsicWidth() + drawablePadding;
}
}
return padding;
}
@Override
protected void onDraw(Canvas canvas) {
final Drawable buttonDrawable = drawable;
if (buttonDrawable != null) {
final int verticalGravity = getGravity() & Gravity.VERTICAL_GRAVITY_MASK;
final int drawableHeight = buttonDrawable.getIntrinsicHeight();
final int drawableWidth = buttonDrawable.getIntrinsicWidth();
final int top;
switch (verticalGravity) {
case Gravity.BOTTOM:
top = getHeight() - drawableHeight;
break;
case Gravity.CENTER_VERTICAL:
top = (getHeight() - drawableHeight) / 2;
break;
default:
top = 0;
}
final int bottom = top + drawableHeight;
final int left = isLayoutRtl() ? getPaddingLeft() : getWidth() - drawableWidth - getPaddingRight();
final int right = isLayoutRtl() ? drawableWidth + getPaddingLeft() : getWidth() - getPaddingRight();
buttonDrawable.setBounds(left, top, right, bottom);
final Drawable background = getBackground();
if (background != null && background instanceof RippleDrawable) {
//TODO: hotspotBounds
// ((RippleDrawable)background).setHotspotBounds(left, top, right, bottom);
}
}
super.onDraw(canvas);
if (buttonDrawable != null) {
final int scrollX = getScrollX();
final int scrollY = getScrollY();
if (scrollX == 0 && scrollY == 0) {
buttonDrawable.draw(canvas);
} else {
canvas.translate(scrollX, scrollY);
buttonDrawable.draw(canvas);
canvas.translate(-scrollX, -scrollY);
}
}
}
@Override
protected int[] onCreateDrawableState(int extraSpace) {
if (isChecked()) {
final int[] drawableState = super.onCreateDrawableState(extraSpace + 1);
mergeDrawableStates(drawableState, CHECKED_STATE_SET);
return drawableState;
}
return super.onCreateDrawableState(extraSpace);
}
@Override
protected void drawableStateChanged() {
super.drawableStateChanged();
if (drawable != null) {
int[] myDrawableState = getDrawableState();
// Set the state of the Drawable
drawable.setState(myDrawableState);
invalidate();
}
}
@Override
protected boolean verifyDrawable(@NonNull Drawable who) {
return super.verifyDrawable(who) || who == drawable;
}
@Override
public void jumpDrawablesToCurrentState() {
super.jumpDrawablesToCurrentState();
if (drawable != null) drawable.jumpToCurrentState();
}
static class SavedState extends BaseSavedState {
boolean checked;
/**
* Constructor called from {@link CompoundButton#onSaveInstanceState()}
*/
SavedState(Parcelable superState) {
super(superState);
}
/**
* Constructor called from {@link #CREATOR}
*/
private SavedState(Parcel in) {
super(in);
checked = (Boolean) in.readValue(getClass().getClassLoader());
}
@Override
public void writeToParcel(Parcel out, int flags) {
super.writeToParcel(out, flags);
out.writeValue(checked);
}
@Override
public String toString() {
return "CheckedTextView.SavedState{"
+ Integer.toHexString(System.identityHashCode(this))
+ " checked=" + checked + "}";
}
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];
}
};
}
@Override
public Parcelable onSaveInstanceState() {
Parcelable superState = super.onSaveInstanceState();
SavedState ss = new SavedState(superState);
ss.checked = isChecked();
return ss;
}
@Override
public void onRestoreInstanceState(Parcelable state) {
SavedState ss = (SavedState) state;
super.onRestoreInstanceState(ss.getSuperState());
setChecked(ss.checked);
requestLayout();
}
}