/*
* Copyright (C) 2008 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 com.android.Mylauncher2;
import android.animation.Animator;
import android.animation.AnimatorSet;
import android.animation.ObjectAnimator;
import android.animation.TimeInterpolator;
import android.animation.ValueAnimator;
import android.animation.ValueAnimator.AnimatorUpdateListener;
import android.app.WallpaperManager;
import android.appwidget.AppWidgetHostView;
import android.appwidget.AppWidgetProviderInfo;
import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;
import android.content.SharedPreferences;
import android.content.res.Resources;
import android.content.res.TypedArray;
import android.graphics.Bitmap;
import android.graphics.Canvas;
import android.graphics.Matrix;
import android.graphics.Point;
import android.graphics.PointF;
import android.graphics.Rect;
import android.graphics.Region.Op;
import android.graphics.drawable.Drawable;
import android.os.IBinder;
import android.os.Parcelable;
import android.util.AttributeSet;
import android.util.Log;
import android.util.SparseArray;
import android.view.Display;
import android.view.Gravity;
import android.view.MotionEvent;
import android.view.View;
import android.view.ViewGroup;
import android.view.View.OnClickListener;
import android.view.animation.DecelerateInterpolator;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.TextView;
import com.android.Mylauncher2.FolderIcon.FolderRingAnimator;
import com.android.Mylauncher2.LauncherSettings.Favorites;
import com.android.Mylauncher.R;
import java.net.URISyntaxException;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashSet;
import java.util.Iterator;
import java.util.Set;
//mcoy add for multi-wallpaper begin
import android.graphics.Bitmap.Config;
import android.graphics.BitmapFactory;
import android.graphics.Color;
import android.graphics.Paint;
import android.graphics.drawable.BitmapDrawable;
import java.io.IOException;
//mcoy add
//BEGIN: mcoy add for workspace preview
import android.preference.PreferenceManager;
import android.view.LayoutInflater;
import com.android.Mylauncher2.edit.PageInfo;
import java.util.List;
//END
/**
* The workspace is a wide area with a wallpaper and a finite number of pages.
* Each page contains a number of icons, folders or widgets the user can
* interact with. A workspace is meant to be used with a fixed width only.
*/
public class Workspace extends SmoothPagedView
implements DropTarget, DragSource, DragScroller, View.OnTouchListener,
DragController.DragListener, LauncherTransitionable, ViewGroup.OnHierarchyChangeListener {
private static final String TAG = "Launcher.Workspace";
// Y rotation to apply to the workspace screens
private static final float WORKSPACE_OVERSCROLL_ROTATION = 24f;
private static final int CHILDREN_OUTLINE_FADE_OUT_DELAY = 0;
private static final int CHILDREN_OUTLINE_FADE_OUT_DURATION = 375;
private static final int CHILDREN_OUTLINE_FADE_IN_DURATION = 100;
private static final int BACKGROUND_FADE_OUT_DURATION = 350;
private static final int ADJACENT_SCREEN_DROP_DURATION = 300;
private static final int FLING_THRESHOLD_VELOCITY = 500;
// These animators are used to fade the children's outlines
private ObjectAnimator mChildrenOutlineFadeInAnimation;
private ObjectAnimator mChildrenOutlineFadeOutAnimation;
private float mChildrenOutlineAlpha = 0;
// These properties refer to the background protection gradient used for AllApps and Customize
private ValueAnimator mBackgroundFadeInAnimation;
private ValueAnimator mBackgroundFadeOutAnimation;
private Drawable mBackground;
boolean mDrawBackground = true;
private float mBackgroundAlpha = 0;
private float mOverScrollMaxBackgroundAlpha = 0.0f;
private float mWallpaperScrollRatio = 1.0f;
private int mOriginalPageSpacing;
private final WallpaperManager mWallpaperManager;
private IBinder mWindowToken;
private static final float WALLPAPER_SCREENS_SPAN = 2f;
private int mDefaultPage;
/**
* CellInfo for the cell that is currently being dragged
*/
private CellLayout.CellInfo mDragInfo;
/**
* Target drop area calculated during last acceptDrop call.
*/
private int[] mTargetCell = new int[2];
private int mDragOverX = -1;
private int mDragOverY = -1;
static Rect mLandscapeCellLayoutMetrics = null;
static Rect mPortraitCellLayoutMetrics = null;
/**
* The CellLayout that is currently being dragged over
*/
private CellLayout mDragTargetLayout = null;
/**
* The CellLayout that we will show as glowing
*/
private CellLayout mDragOverlappingLayout = null;
/**
* The CellLayout which will be dropped to
*/
private CellLayout mDropToLayout = null;
private Launcher mLauncher;
private IconCache mIconCache;
private DragController mDragController;
// These are temporary variables to prevent having to allocate a new object just to
// return an (x, y) value from helper functions. Do NOT use them to maintain other state.
private int[] mTempCell = new int[2];
private int[] mTempEstimate = new int[2];
private float[] mDragViewVisualCenter = new float[2];
private float[] mTempDragCoordinates = new float[2];
private float[] mTempCellLayoutCenterCoordinates = new float[2];
private float[] mTempDragBottomRightCoordinates = new float[2];
private Matrix mTempInverseMatrix = new Matrix();
private SpringLoadedDragController mSpringLoadedDragController;
private float mSpringLoadedShrinkFactor;
private static final int DEFAULT_CELL_COUNT_X = 4;
private static final int DEFAULT_CELL_COUNT_Y = 4;
// State variable that indicates whether the pages are small (ie when you're
// in all apps or customize mode)
enum State { NORMAL, SPRING_LOADED, SMALL };
private State mState = State.NORMAL;
private boolean mIsSwitchingState = false;
boolean mAnimatingViewIntoPlace = false;
boolean mIsDragOccuring = false;
boolean mChildrenLayersEnabled = true;
/** Is the user is dragging an item near the edge of a page? */
private boolean mInScrollArea = false;
private final HolographicOutlineHelper mOutlineHelper = new HolographicOutlineHelper();
private Bitmap mDragOutline = null;
private final Rect mTempRect = new Rect();
private final int[] mTempXY = new int[2];
private int[] mTempVisiblePagesRange = new int[2];
private float mOverscrollFade = 0;
private boolean mOverscrollTransformsSet;
public static final int DRAG_BITMAP_PADDING = 2;
private boolean mWorkspaceFadeInAdjacentScreens;
enum WallpaperVerticalOffset { TOP, MIDDLE, BOTTOM };
int mWallpaperWidth;
int mWallpaperHeight;
WallpaperOffsetInterpolator mWallpaperOffset;
boolean mUpdateWallpaperOffsetImmediately = false;
private Runnable mDelayedResizeRunnable;
private Runnable mDelayedSnapToPageRunnable;
private Point mDisplaySize = new Point();
private boolean mIsStaticWallpaper;
private int mWallpaperTravelWidth;
private int mSpringLoadedPageSpacing;
private int mCameraDistance;
// Variables relating to the creation of user folders by hovering shortcuts over shortcuts
private static final int FOLDER_CREATION_TIMEOUT = 0;
private static final int REORDER_TIMEOUT = 250;
private final Alarm mFolderCreationAlarm = new Alarm();
private final Alarm mReorderAlarm = new Alarm();
private FolderRingAnimator mDragFolderRingAnimator = null;
private FolderIcon mDragOverFolderIcon = null;
private boolean mCreateUserFolderOnDrop = false;
private boolean mAddToExistingFolderOnDrop = false;
private DropTarget.DragEnforcer mDragEnforcer;
private float mMaxDistanceForFolderCreation;
// Variables relating to touch disambiguation (scrolling workspace vs. scrolling a widget)
private float mXDown;
private float mYDown;
final static float START_DAMPING_TOUCH_SLOP_ANGLE = (float) Math.PI / 6;
final static float MAX_SWIPE_ANGLE = (float) Math.PI / 3;
final static float TOUCH_SLOP_DAMPING_FACTOR = 4;
// Relating to the animation of items being dropped externally
public static final int ANIMATE_INTO_POSITION_AND_DISAPPEAR = 0;
public static final int ANIMATE_INTO_POSITION_AND_REMAIN = 1;
public static final int ANIMATE_INTO_POSITION_AND_RESIZE = 2;
public static final int COMPLETE_TWO_STAGE_WIDGET_DROP_ANIMATION = 3;
public static final int CANCEL_TWO_STAGE_WIDGET_DROP_ANIMATION = 4;
// Related to dragging, folder creation and reordering
private static final int DRAG_MODE_NONE = 0;
private static final int DRAG_MODE_CREATE_FOLDER = 1;
private static final int DRAG_MODE_ADD_TO_FOLDER = 2;
private static final int DRAG_MODE_REORDER = 3;
private int mDragMode = DRAG_MODE_NONE;
private int mLastReorderX = -1;
private int mLastReorderY = -1;
private SparseArray<Parcelable> mSavedStates;
private final ArrayList<Integer> mRestoredPages = new ArrayList<Integer>();
// These variables are used for storing the initial and final values during workspace animations
private int mSavedScrollX;
private float mSavedRotationY;
private float mSavedTranslationX;
private float mCurrentScaleX;
private float mCurrentScaleY;
private float mCurrentRotationY;
private float mCurrentTranslationX;
private float mCurrentTranslationY;
private float[] mOldTranslationXs;
private float[] mOldTranslationYs;
private float[] mOldScaleXs;
private float[] mOldScaleYs;
private float[] mOldBackgroundAlphas;
private float[] mOldAlphas;
private float[] mNewTranslationXs;
private float[] mNewTranslationYs;
private float[] mNewScaleXs;
private float[] mNewScaleYs;
private float[] mNewBackgroundAlphas;
private float[] mNewAlphas;
private float[] mNewRotationYs;
private float mTransitionProgress;
//mcoy add for wallpaper begin
// this list store the each bitmap to be showed in respond mCurrentPage
private ArrayList<Bitmap> mBitmaps = new ArrayList<Bitmap>();
private float mTouchX; //this record the first point of touch down event
// mcoy add end
private final Runnable mBindPages = new Runnable() {
@Override
public void run() {
mLauncher.getModel().bindRemainingSynchronousPages();
}
};
/**
* Used to inflate the Workspace from XML.
*
* @param context The application's context.
* @param attrs The attributes set containing the Workspace's customization values.
*/
public Workspace(Context context, AttributeSet attrs) {
this(context, attrs, 0);
}
/**
* Used to inflate the Workspace from XML.
*
* @param context The application's context.
* @param attrs The attributes set containing the Workspace's customization values.
* @param defStyle Unused.
*/
public Workspace(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
mContentIsRefreshable = false;
mOriginalPageSpacing = mPageSpacing;
mDragEnforcer = new DropTarget.DragEnforcer(context);
// With workspace, data is available straight from the get-go
setDataIsReady();
mLauncher = (Launcher) context;
final Resources res = getResources();
mWorkspaceFadeInAdjacentScreens = res.getBoolean(R.bool.config_workspaceFadeAdjacentScreens);
mFadeInAdjacentScreens = false;
mWallpaperManager = WallpaperManager.getInstance(context);
int cellCountX = DEFAULT_CELL_COUNT_X;
int cellCountY = DEFAULT_CELL_COUNT_Y;
TypedArray a = context.obtainStyledAttributes(attrs,
R.styleable.Workspace, defStyle, 0);
if (LauncherApplication.isScreenLarge()) {
// Determine number of rows/columns dynamically
// TODO: This code currently fails on tablets with an aspect ratio < 1.3.
// Around that ratio we should make cells the same size in portrait and
// landscape
TypedArray actionBarSizeTypedArray =
context.obtainStyledAttributes(new int[] { android.R.attr.actionBarSize });
final float actionBarHeight = actionBarSizeTypedArray.getDimension(0, 0f);
Point minDims = new Point();
Point maxDims = new Point();
mLauncher.getWindowManager().getDefaultDisplay().getCurrentSizeRange(minDims, maxDims);
cellCountX = 1;
while (CellLayout.widthInPortrait(res, cellCountX + 1) <= minDims.x) {
cellCountX++;
}
cellCountY = 1;
while (actionBarHeight + CellLayout.heightInLandscape(res, cellCountY + 1)
<= minDims.y) {
cellCountY++;
}
}
mSpringLoadedShrinkFactor =
res.getInteger(R.integer.config_workspaceSpringLoadShrinkPercentage) / 100.0f;
mSpringLoadedPageSpacing =
res.getDimensionPixelSize(R.dimen.workspace_spring_loaded_page_spacing);
mCameraDistance = res.getInteger(R.integer.config_cameraDistance);
// if the value is manually specified, use that instead
cellCountX = a.getInt(R.styleable.Workspace_cellCountX, cellCountX);
cellCountY = a.getInt(R.styleable.Workspace_cellCountY, cellCountY);
mDefaultPage = a.getInt(R.styleable.Workspace_defaultScreen, 1);
a.recycle();
setOnHierarchyChangeListener(this);
LauncherModel.updateWorkspaceLayoutCells(cellCountX, cellCountY);
setHapticFeedbackEnabled(false);
initWorkspace();
// Disable multitouch across the workspace/all apps/customize tray
setMotionEventSplittingEnabled(true);
// Unless otherwise specified this view is important for accessibility.
if (getImportantForAccessibility() == View.IMPORTANT_FOR_ACCESSIBILITY_AUTO) {
setImportantForAccessibility(View.IMPORTANT_FOR_ACCESSIBILITY_YES);
}
//mcoy add for workspace indicator begin
/**mLayoutBottom = (LinearLayout) mLauncher.findViewById(R.id.workspace_botton_moons);
if(mLayoutBottom == null) {
Log.e("JIA", "null");
}
setCurPage(getCurrentPage());*/
//mcoy add end
}
//mcoy add for workspace indicator begin
private LinearLayout mLayoutBottom;
private ImageView imgCur[] = new ImageView[20];
public void setCurPage(int page) {
Log.e("JIA", "the page is " + page);
mLayoutBottom.removeAllViews();
if (getPageCount() > 1) {
for (int i = 0; i < getPageCount(); i++) {
imgCur[i] = new ImageView(getContext());
imgCur[i].setBackgroundResource(R.drawable.bg_img_item);
imgCur[i].setId(i);
imgCur[i].setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
for (int i = 0; i < getPageCount(); i++) {
imgCur[i].setBackgroundResource(R.drawable.bg_img_item);
if (i == v.getId()) {
imgCur[i].setBackgroundResource(R.drawable.bg_img_item_true);
snapToPage(i);
}
}
}
});
// 判断当前页码来更新
if (imgCur[i].getId() == page) {
imgCur[i].setBackgroundResource(R.drawable.bg_img_item_true);
}
mLayoutBottom.addView(imgCur[i]);
}
}
}
public void showBottomLayout() {
mLayoutBottom.setVisibility(View.VISIBLE);
}
public void hideBottomLayout() {
mLayoutBottom.setVisibility(View.GONE);
}
//mcoy add end
// estimate the size of a widget with spans hSpan, vSpan. return MAX_VALUE for each
// dimension if unsuccessful
public int[] estimateItemSize(int hSpan, int vSpan,
ItemInfo itemInfo, boolean springLoaded) {
int[] size = new int[2];
if (getChildCount() > 0) {
CellLayout cl = (CellLayout) mLauncher.getWorkspace().getChildAt(0);
Rect r = estimateItemPosition(cl, itemInfo, 0, 0, hSpan, vSpan);
size[0] = r.width();
size[1] = r.height();
if (springLoaded) {
size[0] *= mSpringLoadedShrinkFactor;
size[1] *= mSpringLoadedShrinkFactor;
}
return size;
} else {
size[0] = Integer.MAX_VALUE;
size[1] = Integer.MAX_VALUE;
return size;
}
}
public Rect estimateItemPosition(CellLayout cl, ItemInfo pendingInfo,
int hCell, int vCell, int hSpan, int vSpan) {
Rect r = new Rect();
cl.cellToRect(hCell, vCell, hSpan, vSpan, r);
return r;
}
public void onDragStart(DragSource source, Object info, int dragAction) {
mIsDragOccuring = true;
updateChildrenLayersEnabled(false);
mLauncher.lockScreenOrientation();
setChildrenBackgroundAlphaMultipliers(1f);
// Prevent any Un/InstallShortcutReceivers from updating the db while we are dragging
InstallShortcutReceiver.enableInstallQueue();
UninstallShortcutReceiver.enableUninstallQueue();
}
public void onDragEnd() {
mIsDragOccuring = false;
updateChildrenLayersEnabled(false);
mLauncher.unlockScreenOrientation(false);
// Re-enable any Un/InstallShortcutReceiver and now process any queued items
InstallShortcutReceiver.disableAndFlushInstallQueue(getContext());
UninstallShortcutReceiver.disableAndFlushUninstallQueue(getContext());
}
/**
* Initializes various states for this workspace.
*/
protected void initWorkspace() {
Context context = getContext();
mCurrentPage = mDefaultPage;
Launcher.setScreen(mCurrentPage);
LauncherApplication app = (LauncherApplication)context.getApplicationContext();
mIconCache = app.getIconCache();
setWillNotDraw(false);
setChildrenDrawnWithCacheEnabled(true);
final Resources res = getResources();
try {
mBackground = res.getDrawable(R.drawable.apps_customize_bg);
//mcoy add for multi-wallpaper begin
initMultiBackgrounds(mBitmaps);
if(mLauncher.isMultiWallpaperEnabled()) {
setBackgroundDrawable(new BitmapDrawable(mBitmaps.get(mCurrentPage)));
}
//mcoy add end
} catch (Resources.NotFoundException e) {
// In this case, we will skip drawing background protection
}
mWallpaperOffset = new WallpaperOffsetInterpolator();
Display display = mLauncher.getWindowManager().getDefaultDisplay();
display.getSize(mDisplaySize);
mWallpaperTravelWidth = (int) (mDisplaySize.x *
wallpaperTravelToScreenWidthRatio(mDisplaySize.x, mDisplaySize.y));
mMaxDistanceForFolderCreation = (0.55f * res.getDimensionPixelSize(R.dimen.app_icon_size));
mFlingThresholdVelocity = (int) (FLING_THRESHOLD_VELOCITY * mDensity);
}
//mcoy add for multi-wallpaperbegin
private void initMultiBackgrounds(ArrayList<Bitmap> mBitmaps) {
Bitmap bitmap1 = BitmapFactory.decodeResource(getResources(),
R.drawable.bg1).copy(Bitmap.Config.ARGB_8888, true);
mBitmaps.add(bitmap1);
Bitmap bitmap2 = BitmapFactory.decodeResource(getResources(),
R.drawable.bg2).copy(Bitmap.Config.ARGB_8888, true);
mBitmaps.add(bitmap2);
Bitmap bitmap3 = BitmapFactory.decodeResource(getResources(),
R.drawable.bg3).copy(Bitmap.Config.ARGB_8888, true);
mBitmaps.add(bitmap3);
Bitmap bitmap4 = BitmapFactory.decodeResource(getResources(),
R.drawable.bg4).copy(Bitmap.Config.ARGB_8888, true);
mBitmaps.add(bitmap4);
Bitmap bitmap5 = BitmapFactory.decodeResource(getResources(),
R.drawable.bg5).copy(Bitmap.Config.ARGB_8888, true);
mBitmaps.add(bitmap5);
}
public void multiWallpaperHasChanged(boolean isMultiWallpaperEnabled) {
if(isMultiWallpaperEnabled) {
setBackgroundDrawable(new BitmapDrawable(mBitmaps.get(mCurrentPage)));
} else {
setBackgroundDrawable(null);
}
}
//mcoy add end
//BEGIN: mcoy added for workspace edit home preview
// 页面辑编完成后，重新排列CellLayout
public void reorderChildren(List<PageInfo> pages) {
Log.e(TAG, "the pages.size is " + pages.size());
List<View> views = removeOldViews();
View[] newViews = new View[pages.size()];
for (int i = 0; i < newViews.length; i++) {
PageInfo info = pages.get(i);
Log.e(TAG, "the info.originPage is " + info.originPage);
if (info.originPage != -1) {
newViews[i] = views.get(info.originPage);
// 新更此页面上的item的screen信息
CellLayout cell = (CellLayout) newViews[i];
ShortcutAndWidgetContainer cellShortAndWidget = cell.getShortcutsAndWidgets();
int countInCell = cellShortAndWidget.getChildCount();
Log.e(TAG, "there are " + countInCell + " items in " + i);
for (int j = 0; j < countInCell; j++) {
ItemInfo in = (ItemInfo) cellShortAndWidget.getChildAt(j).getTag();
// 设定新的screen
if(in != null && in.screen != i){
Log.e(TAG, "adding item in " + i);
in.screen = i;
LauncherModel.updateItemInDatabase(getContext(), in);
}
}
} else {
//newViews[i] = new CellLayout(mLauncher);
newViews[i] = (CellLayout) (LayoutInflater.from(mLauncher).inflate(R.layout.workspace_screen,null));
}
}
for (int i = 0; i < newViews.length; i++) {
Log.e(TAG, "Workspace---addView()");
// add by samuel:@{
//removeView(newViews[i]);
try {
addView(newViews[i]);
} catch (Exception e) {
// TODO: handle exception
newViews[i] = new CellLayout(mLauncher);
addView(newViews[i]);
}
// @}
//addView(newViews[i]);
}
// add by samuel:@{
if(getCurrentPage() >= getChildCount()){
setCurrentPage(Launcher.DEFAULT_SCREEN);
}
// @}
//mcoy we save the celllayout's count, for reboor cell phone
SharedPreferences sp = PreferenceManager.getDefaultSharedPreferences(getContext());
sp.edit().putInt("screen_count", newViews.length).commit();
requestLayout();
}
private List<View> removeOldViews() {
List<View> list = new ArrayList<View>();
for (int i = 0; i < getChildCount(); i++) {
View view = getChildAt(i);
list.add(view);
}
for (View view : list) {
removeView(view);
}
return list;
}
//END
/**
* mcoy add begin: Remove the specified screen and all the contents
* @param screen
*/
protected void removeScreen(int screen){
Log.e(TAG, "removeScreen---screen is " + screen);
if(screen == -1){
return;
}
final CellLayout layout = (CellLayout) getChildAt(screen);
ShortcutAndWidgetContainer cellShortAndWidget = layout.getShortcutsAndWidgets();
int childCount = cellShortAndWidget.getChildCount();
Log.e(TAG, "there are " + childCount + " children in the " + screen + " screen");
final LauncherModel model = mLauncher.getModel();
for (int j = 0; j < childCount; j++) {
final View view = cellShortAndWidget.getChildAt(j);
Object tag = view.getTag();
//DELETE ALL ITEMS FROM SCREEN
final ItemInfo item = (ItemInfo) tag;
if (item.container == LauncherSettings.Favorites.CONTAINER_DESKTOP) {
if (item instanceof LauncherAppWidgetInfo) {
//model.removeDesktopAppWidget((LauncherAppWidgetInfo) item);
} else {
//model.removeDesktopItem(item);
}
}
if (item instanceof FolderInfo) {
final FolderInfo userFolderInfo = (FolderInfo)item;
LauncherModel.deleteFolderContentsFromDatabase(mLauncher, userFolderInfo);
} else if (item instanceof LauncherAppWidgetInfo) {
final LauncherAppWidgetInfo launcherAppWidgetInfo = (LauncherAppWidgetInfo) item;
final LauncherAppWidgetHost appWidgetHost = mLauncher.getAppWidgetHost();
if (appWidgetHost != null) {
appWidgetHost.deleteAppWidgetId(launcherAppWidgetInfo.appWidgetId);
}
}
LauncherModel.deleteItemFromDatabase(mLauncher, item);
}
//moveItemPositions(screen, -1);
//removeView(getChildAt(screen));
}
//mcoy add END
@Override
protected int getScrollMode() {
return SmoothPagedView.X_LARGE_MODE;
}
@Override
public void onChildViewAdded(View parent, View child) {
if (!(child instanceof CellLayout)) {
throw new IllegalArgumentException("A Workspace can only have CellLayout children.");
}
CellLayout cl = ((CellLayout) child);
cl.setOnInterceptTouchListener(this);
cl.setClickable(true);
cl.setContentDescription(getContext().getString(
R.string.workspace_description_format, getChildCount()));
}
@Override
public void onChildViewRemoved(View parent, View child) {
}
protected boolean shouldDrawChild(View child) {
final CellLayout cl = (CellLayout) child;
return super.shouldDrawChild(child) &&
(cl.getShortcutsAndWidgets().getAlpha() > 0 ||
cl.getBackgroundAlpha() > 0);
}
/**
* @return The open folder on the current screen, or null if there is none
*/
Folder getOpenFolder() {
DragLayer dragLayer = mLauncher.getDragLayer();
int count = dragLayer.getChildCount();
for (int i = 0; i < count; i++) {
View child = dragLayer.getChildAt(i);
if (child instanceof Folder) {
Folder folder = (Folder) child;
if (folder.getInfo().opened)
return folder;
}
}
return null;
}
boolean isTouchActive() {
return mTouchState != TOUCH_STATE_REST;
}
/**
* Adds the specified child in the specified screen. The position and dimension of
* the child are defined by x, y, spanX and spanY.
*
* @param child The child to add in one of the workspace's screens.
* @param screen The screen in which to add the child.
* @param x The X position of the child in the screen's grid.
* @param y The Y position of the child in the screen's grid.
* @param spanX The number of cells spanned horizontally by the child.
* @param spanY The number of cells spanned vertically by the child.
*/
void addInScreen(View child, long container, int screen, int x, int y, int spanX, int spanY) {
addInScreen(child, container, screen, x, y, spanX, spanY, false);
}
/**
* Adds the specified child in the specified screen. The position and dimension of
* the child are defined by x, y, spanX and spanY.
*
* @param child The child to add in one of the workspace's screens.
* @param screen The screen in which to add the child.
* @param x The X position of the child in the screen's grid.
* @param y The Y position of the child in the screen's grid.
* @param spanX The number of cells spanned horizontally by the child.
* @param spanY The number of cells spanned vertically by the child.
* @param insert When true, the child is inserted at the beginning of the children list.
*/
void addInScreen(View child, long container, int screen, int x, int y, int spanX, int spanY,
boolean insert) {
if (container == LauncherSettings.Favorites.CONTAINER_DESKTOP) {
if (screen < 0 || screen >= getChildCount()) {
Log.e(TAG, "The screen must be >= 0 and < " + getChildCount()
+ " (was " + screen + "); skipping child");
return;
}
}
final CellLayout layout;
if (container == LauncherSettings.Favorites.CONTAINER_HOTSEAT) {
layout = mLauncher.getHotseat().getLayout();
child.setOnKeyListener(null);
// Hide folder title in the hotseat
if (child instanceof FolderIcon) {
((FolderIcon) child).setTextVisible(false);
}
if (screen < 0) {
screen = mLauncher.getHotseat().getOrderInHotseat(x, y);
} else {
// Note: We do this to ensure that the hotseat is always laid out in the orientation
// of the hotseat in order regardless of which orientation they were added
x = mLauncher.getHotseat().getCellXFromOrder(screen);
y = mLauncher.getHotseat().getCellYFromOrder(screen);
}
} else {
// Show folder title if not in the hotseat
if (child instanceof FolderIcon) {
((FolderIcon) child).setTextVisible(true);
}
layout = (CellLayout) getChildAt(screen);
child.setOnKeyListener(new IconKeyEventListener());
}
LayoutParams genericLp = child.getLayoutParams();
CellLayout.LayoutParams lp;
if (genericLp == null || !(genericLp instanceof CellLayout.LayoutParams)) {
lp = new CellLayout.LayoutParams(x, y, spanX, spanY);
} else {
lp = (CellLayout.LayoutParams) genericLp;
lp.cellX = x;
lp.cellY = y;
lp.cellHSpan = spanX;
lp.cellVSpan = spanY;
}
if (spanX < 0 && spanY < 0) {
lp.isLockedToGrid = false;
}
// Get the canonical child id to uniquely represent this view in this screen
int childId = LauncherModel.getCellLayoutChildId(container, screen, x, y, spanX, spanY);
boolean markCellsAsOccupied = !(child instanceof Folder);
if (!layout.addViewToCellLayout(child, insert ? 0 : -1, childId, lp, markCellsAsOccupied)) {
// TODO: This branch occurs when the workspace is adding views
// outside of the defined grid
// maybe we should be deleting these items from the LauncherModel?
Log.w(TAG, "Failed to add to item at (" + lp.cellX + "," + lp.cellY + ") to CellLayout");
}
if (!(child instanceof Folder)) {
child.setHapticFeedbackEnabled(false);
child.setOnLongClickListener(mLongClickListener);
}
if (child instanceof DropTarget) {
mDragController.addDropTarget((DropTarget) child);
}
}
/**
* Check if the point (x, y) hits a given page.
*/
private boolean hitsPage(int index, float x, float y) {
final View page = getChildAt(index);
if (page != null) {
float[] localXY = { x, y };
mapPointFromSelfToChild(page, localXY);
return (localXY[0] >= 0 && localXY[0] < page.getWidth()
&& localXY[1] >= 0 && localXY[1] < page.getHeight());
}
return false;
}
@Override
protected boolean hitsPreviousPage(float x, float y) {
// mNextPage is set to INVALID_PAGE whenever we are stationary.
// Calculating "next page" this way ensures that you scroll to whatever page you tap on
final int current = (mNextPage == INVALID_PAGE) ? mCurrentPage : mNextPage;
// Only allow tap to next page on large devices, where there's significant margin outside
// the active workspace
return LauncherApplication.isScreenLarge() && hitsPage(current - 1, x, y);
}
@Override
protected boolean hitsNextPage(float x, float y) {
// mNextPage is set to INVALID_PAGE whenever we are stationary.
// Calculating "next page" this way ensures that you scroll to whatever page you tap on
final int current = (mNextPage == INVALID_PAGE) ? mCurrentPage : mNextPage;
// Only allow tap to next page on large devices, where there's significant margin outside
// the active workspace
return LauncherApplication.isScreenLarge() && hitsPage(current + 1, x, y);
}
/**
* Called directly from a CellLayout (not by the framework), after we've been added as a
* listener via setOnInterceptTouchEventListener(). This allows us to tell the CellLayout
* that it should intercept touch events, which is not something that is normally supported.
*/
@Override
public boolean onTouch(View v, MotionEvent event) {
return (isSmall() || !isFinishedSwitchingState());
}
public boolean isSwitchingState() {
return mIsSwitchingState;
}
/** This differs from isSwitchingState in that we take into account how far the transition
* has completed. */
public boolean isFinishedSwitchingState() {
return !mIsSwitchingState || (mTransitionProgress > 0.5f);
}
protected void onWindowVisibilityChanged (int visibility) {
mLauncher.onWindowVisibilityChanged(visibility);
}
@Override
public boolean dispatchUnhandledMove(View focused, int direction) {
if (isSmall() || !isFinishedSwitchingState()) {
// when the home screens are shrunken, shouldn't allow side-scrolling
return false;
}
return super.dispatchUnhandledMove(focused, direction);
}
@Override
public boolean onInterceptTouchEvent(MotionEvent ev) {
switch (ev.getAction() & MotionEvent.ACTION_MASK) {
case MotionEvent.ACTION_DOWN:
mTouchX = ev.getX(); //mcoy add for multi-wallpaper
mXDown = ev.getX();
mYDown = ev.getY();
break;
case MotionEvent.ACTION_POINTER_UP:
case MotionEvent.ACTION_UP:
if (mTouchState == TOUCH_STATE_REST) {
final CellLayout currentPage = (CellLayout) getChildAt(mCurrentPage);
if (!currentPage.lastDownOnOccupiedCell()) {
onWallpaperTap(ev);
}
}
}
return super.onInterceptTouchEvent(ev);
}
//mcoy add for multi-wallpaper begin
@SuppressWarnings("deprecation")
@Override
public boolean onTouchEvent(MotionEvent event) {
final int action = event.getAction();
final float x = event.getX();
switch (action) {
case MotionEvent.ACTION_DOWN:
break;
case MotionEvent.ACTION_MOVE:
if (mLauncher.isMultiWallpaperEnabled()) {
int distance = Math.abs((int) (mTouchX - x));
boolean shouldSlideToRight = mTouchX > x;
setBackgroundDrawable(getMergedDrawable(mCurrentPage, distance,
shouldSlideToRight));
}
break;
}
return super.onTouchEvent(event);
}
@SuppressWarnings("deprecation")
private Drawable getMergedDrawable(int mCurrentPage, int distance, boolean shouldSlideToRight) {
Bitmap bitmap1 = mBitmaps.get(mCurrentPage);
Bitmap bitmap2 = null;
int bitmap1Alpha, bitmap2Alpha;
if(shouldSlideToRight) {
if(mCurrentPage < mBitmaps.size() - 1) {
bitmap2 = mBitmaps.get(mCurrentPage + 1);
} else {
bitmap2 = mBitmaps.get(mCurrentPage);
}
} else {
if(mCurrentPage >= 1) {
bitmap2 = mBitmaps.get(mCurrentPage - 1);
} else {
bitmap2 = mBitmaps.get(mCurrentPage);
}
}
bitmap1Alpha = 255 - distance * 255 / 320;
bitmap2Alpha = 0 + distance * 255 / 320;
return new BitmapDrawable(mergeBitmap(bitmap1, bitmap2, bitmap1Alpha, bitmap2Alpha));
}
public Bitmap mergeBitmap(Bitmap bitmap1, Bitmap bitmap2, int bitmap1Alpha, int bitmap2Alpha) {
Bitmap newBitmap = null;
newBitmap = Bitmap.createBitmap(bitmap1);
Canvas canvas = new Canvas(newBitmap);
Paint paint = new Paint();
canvas.drawRect(0, 0, bitmap1.getWidth(), bitmap1.getHeight(), paint);
paint.setAlpha(bitmap1Alpha);
canvas.drawBitmap(bitmap1, 0, 0, paint);
paint = new Paint();
paint.setAlpha(bitmap2Alpha);
canvas.drawBitmap(bitmap2, 0, 0, paint);
canvas.save(Canvas.ALL_SAVE_FLAG);
// 存储新合成的图片
canvas.restore();
return newBitmap;
}
//mcoy add end
protected void reinflateWidgetsIfNecessary() {
final int clCount = getChildCount();
for (int i = 0; i < clCount; i++) {
CellLayout cl = (CellLayout) getChildAt(i);
ShortcutAndWidgetContainer swc = cl.getShortcutsAndWidgets();
final int itemCount = swc.getChildCount();
for (int j = 0; j < itemCount; j++) {
View v = swc.getChildAt(j);
if (v.getTag() instanceof LauncherAppWidgetInfo) {
LauncherAppWidgetInfo info = (LauncherAppWidgetInfo) v.getTag();
LauncherAppWidgetHostView lahv = (LauncherAppWidgetHostView) info.hostView;
if (lahv != null && lahv.orientationChangedSincedInflation()) {
mLauncher.removeAppWidget(info);
// Remove the current widget which is inflated with the wrong orientation
cl.removeView(lahv);
mLauncher.bindAppWidget(info);
}
}
}
}
}
@Override
protected void determineScrollingStart(MotionEvent ev) {
if (isSmall()) return;
if (!isFinishedSwitchingState()) return;
float deltaX = Math.abs(ev.getX() - mXDown);
float deltaY = Math.abs(ev.getY() - mYDown);
if (Float.compare(deltaX, 0f) == 0) return;
float slope = deltaY / deltaX;
float theta = (float) Math.atan(slope);
if (deltaX > mTouchSlop || deltaY > mTouchSlop) {
cancelCurrentPageLongPress();
}
if (theta > MAX_SWIPE_ANGLE && deltaY > mTouchSlop * 2) {
// Above MAX_SWIPE_ANGLE, we don't want to ever start scrolling the workspace
super.determineScrollingVertical(ev, true); //mcoy add for gesture in workspace
//return;
} else if (theta > START_DAMPING_TOUCH_SLOP_ANGLE) {
// Above START_DAMPING_TOUCH_SLOP_ANGLE and below MAX_SWIPE_ANGLE, we want to
// increase the touch slop to make it harder to begin scrolling the workspace. This
// results in vertically scrolling widgets to more easily. The higher the angle, the
// more we increase touch slop.
theta -= START_DAMPING_TOUCH_SLOP_ANGLE;
float extraRatio = (float)
Math.sqrt((theta / (MAX_SWIPE_ANGLE - START_DAMPING_TOUCH_SLOP_ANGLE)));
super.determineScrollingStart(ev, 1 + TOUCH_SLOP_DAMPING_FACTOR * extraRatio);
} else {
// Below START_DAMPING_TOUCH_SLOP_ANGLE, we don't do anything special
super.determineScrollingStart(ev);
}
}
protected void onPageBeginMoving() {
super.onPageBeginMoving();
if (isHardwareAccelerated()) {
updateChildrenLayersEnabled(false);
} else {
if (mNextPage != INVALID_PAGE) {
// we're snapping to a particular screen
enableChildrenCache(mCurrentPage, mNextPage);
} else {
// this is when user is actively dragging a particular screen, they might
// swipe it either left or right (but we won't advance by more than one screen)
enableChildrenCache(mCurrentPage - 1, mCurrentPage + 1);
}
}
// Only show page outlines as we pan if we are on large screen
if (LauncherApplication.isScreenLarge()) {
showOutlines();
mIsStaticWallpaper = mWallpaperManager.getWallpaperInfo() == null;
}
// If we are not fading in adjacent screens, we still need to restore the alpha in case the
// user scrolls while we are transitioning (should not affect dispatchDraw optimizations)
if (!mWorkspaceFadeInAdjacentScreens) {
for (int i = 0; i < getChildCount(); ++i) {
((CellLayout) getPageAt(i)).setShortcutAndWidgetAlpha(1f);
}
}
// Show the scroll indicator as you pan the page
showScrollingIndicator(false);
}
protected void onPageEndMoving() {
super.onPageEndMoving();
if (isHardwareAccelerated()) {
updateChildrenLayersEnabled(false);
} else {
clearChildrenCache();
}
if (mDragController.isDragging()) {
if (isSmall()) {
// If we are in springloaded mode, then force an event to check if the current touch
// is under a new page (to scroll to)
mDragController.forceMoveEvent();
}
} else {
// If we are not mid-dragging, hide the page outlines if we are on a large screen
if (LauncherApplication.isScreenLarge()) {
hideOutlines();
}
// Hide the scroll indicator as you pan the page
if (!mDragController.isDragging()) {
hideScrollingIndicator(false);
}
}
mOverScrollMaxBackgroundAlpha = 0.0f;
if (mDelayedResizeRunnable != null) {
mDelayedResizeRunnable.run();
mDelayedResizeRunnable = null;
}
if (mDelayedSnapToPageRunnable != null) {
mDelayedSnapToPageRunnable.run();
mDelayedSnapToPageRunnable = null;
}
}
@Override
protected void notifyPageSwitchListener() {
super.notifyPageSwitchListener();
Launcher.setScreen(mCurrentPage);
};
// As a ratio of screen height, the total distance we want the parallax effect to span
// horizontally
private float wallpaperTravelToScreenWidthRatio(int width, int height) {
float aspectRatio = width / (float) height;
// At an aspect ratio of 16/10, the wallpaper parallax effect should span 1.5 * screen width
// At an aspect ratio of 10/16, the wallpaper parallax effect should span 1.2 * screen width
// We will use these two data points to extrapolate how much the wallpaper parallax effect
// to span (ie travel) at any aspect ratio:
final float ASPECT_RATIO_LANDSCAPE = 16/10f;
final float ASPECT_RATIO_PORTRAIT = 10/16f;
final float WALLPAPER_WIDTH_TO_SCREEN_RATIO_LANDSCAPE = 1.5f;
final float WALLPAPER_WIDTH_TO_SCREEN_RATIO_PORTRAIT = 1.2f;
// To find out the desired width at different aspect ratios, we use the following two
// formulas, where the coefficient on x is the aspect ratio (width/height):
// (16/10)x + y = 1.5
// (10/16)x + y = 1.2
// We solve for x and y and end up with a final formula:
final float x =
(WALLPAPER_WIDTH_TO_SCREEN_RATIO_LANDSCAPE - WALLPAPER_WIDTH_TO_SCREEN_RATIO_PORTRAIT) /
(ASPECT_RATIO_LANDSCAPE - ASPECT_RATIO_PORTRAIT);
final float y = WALLPAPER_WIDTH_TO_SCREEN_RATIO_PORTRAIT - x * ASPECT_RATIO_PORTRAIT;
return x * aspectRatio + y;
}
// The range of scroll values for Workspace
private int getScrollRange() {
return getChildOffset(getChildCount() - 1) - getChildOffset(0);
}
protected void setWallpaperDimension() {
Point minDims = new Point();
Point maxDims = new Point();
mLauncher.getWindowManager().getDefaultDisplay().getCurrentSizeRange(minDims, maxDims);
final int maxDim = Math.max(maxDims.x, maxDims.y);
final int minDim = Math.min(minDims.x, minDims.y);
// We need to ensure that there is enough extra space in the wallpaper for the intended
// parallax effects
if (LauncherApplication.isScreenLarge()) {
mWallpaperWidth = (int) (maxDim * wallpaperTravelToScreenWidthRatio(maxDim, minDim));
mWallpaperHeight = maxDim;
} else {
mWallpaperWidth = Math.max((int) (minDim * WALLPAPER_SCREENS_SPAN), maxDim);
mWallpaperHeight = maxDim;
}
new Thread("setWallpaperDimension") {
public void run() {
mWallpaperManager.suggestDesiredDimensions(mWallpaperWidth, mWallpaperHeight);
}
}.start();
}
private float wallpaperOffsetForCurrentScroll() {
// Set wallpaper offset steps (1 / (number of screens - 1))
mWallpaperManager.setWallpaperOffsetSteps(1.0f / (getChildCount() - 1), 1.0f);
// For the purposes of computing the scrollRange and overScrollOffset, we assume
// that mLayoutScale is 1. This means that when we're in spring-loaded mode,
// there's no discrepancy between the wallpaper offset for a given page.
float layoutScale = mLayoutScale;
mLayoutScale = 1f;
int scrollRange = getScrollRange();
// Again, we adjust the wallpaper offset to be consistent between values of mLayoutScale
float adjustedScrollX = Math.max(0, Math.min(getScrollX(), mMaxScrollX));
adjustedScrollX *= mWallpaperScrollRatio;
mLayoutScale = layoutScale;
float scrollProgress =
adjustedScrollX / (float) scrollRange;
if (LauncherApplication.isScreenLarge() && mIsStaticWallpaper) {
// The wallpaper travel width is how far, from left to right, the wallpaper will move
// at this orientation. On tablets in portrait mode we don't move all the way to the
// edges of the wallpaper, or otherwise the parallax effect would be too strong.
int wallpaperTravelWidth = Math.min(mWallpaperTravelWidth, mWallpaperWidth);
float offsetInDips = wallpaperTravelWidth * scrollProgress +
(mWallpaperWidth - wallpaperTravelWidth) / 2; // center it
float offset = offsetInDips / (float) mWallpaperWidth;
return offset;
} else {
return scrollProgress;
}
}
private void syncWallpaperOffsetWithScroll() {
final boolean enableWallpaperEffects = isHardwareAccelerated();
if (enableWallpaperEffects) {
mWallpaperOffset.setFinalX(wallpaperOffsetForCurrentScroll());
}
}
public void updateWallpaperOffsetImmediately() {
mUpdateWallpaperOffsetImmediately = true;
}
private void updateWallpaperOffsets() {
boolean updateNow = false;
boolean keepUpdating = true;
if (mUpdateWallpaperOffsetImmediately) {
updateNow = true;
keepUpdating = false;
mWallpaperOffset.jumpToFinal();
mUpdateWallpaperOffsetImmediately = false;
} else {
updateNow = keepUpdating = mWallpaperOffset.computeScrollOffset();
}
if (updateNow) {
if (mWindowToken != null) {
mWallpaperManager.setWallpaperOffsets(mWindowToken,
mWallpaperOffset.getCurrX(), mWallpaperOffset.getCurrY());
}
}
if (keepUpdating) {
invalidate();
}
}
@Override
protected void updateCurrentPageScroll() {
super.updateCurrentPageScroll();
computeWallpaperScrollRatio(mCurrentPage);
}
@Override
protected void snapToPage(int whichPage) {
super.snapToPage(whichPage);
computeWallpaperScrollRatio(whichPage);
}
@Override
protected void snapToPage(int whichPage, int duration) {
super.snapToPage(whichPage, duration);
computeWallpaperScrollRatio(whichPage);
}
//mcoy add for multi-wallpaper begin
@Override
protected void snapToPage(int whichPage, int delta, int duration) {
Log.e("XIN", "mCurrentPage is " + mCurrentPage + " whichPage is " + whichPage);
super.snapToPage(whichPage, delta, duration);
//mcoy add for workspace indicator begin
setCurPage(whichPage);
//mcoy add end
if(mLauncher.isMultiWallpaperEnabled()) {
setBackgroundDrawable(new BitmapDrawable(mBitmaps.get(whichPage)));
}
}
//mcoy add end
protected void snapToPage(int whichPage, Runnable r) {
if (mDelayedSnapToPageRunnable != null) {
mDelayedSnapToPageRunnable.run();
}
mDelayedSnapToPageRunnable = r;
snapToPage(whichPage, SLOW_PAGE_SNAP_ANIMATION_DURATION);
}
private void computeWallpaperScrollRatio(int page) {
// Here, we determine what the desired scroll would be with and without a layout scale,
// and compute a ratio between the two. This allows us to adjust the wallpaper offset
// as though there is no layout scale.
float layoutScale = mLayoutScale;
int scaled = getChildOffset(page) - getRelativeChildOffset(page);
mLayoutScale = 1.0f;
float unscaled = getChildOffset(page) - getRelativeChildOffset(page);
mLayoutScale = layoutScale;
if (scaled > 0) {
mWallpaperScrollRatio = (1.0f * unscaled) / scaled;
} else {
mWallpaperScrollRatio = 1f;
}
}
class WallpaperOffsetInterpolator {
float mFinalHorizontalWallpaperOffset = 0.0f;
float mFinalVerticalWallpaperOffset = 0.5f;
float mHorizontalWallpaperOffset = 0.0f;
float mVerticalWallpaperOffset = 0.5f;
long mLastWallpaperOffsetUpdateTime;
boolean mIsMovingFast;
boolean mOverrideHorizontalCatchupConstant;
float mHorizontalCatchupConstant = 0.35f;
float mVerticalCatchupConstant = 0.35f;
public WallpaperOffsetInterpolator() {
}
public void setOverrideHorizontalCatchupConstant(boolean override) {
mOverrideHorizontalCatchupConstant = override;
}
public void setHorizontalCatchupConstant(float f) {
mHorizontalCatchupConstant = f;
}
public void setVerticalCatchupConstant(float f) {
mVerticalCatchupConstant = f;
}
public boolean computeScrollOffset() {
if (Float.compare(mHorizontalWallpaperOffset, mFinalHorizontalWallpaperOffset) == 0 &&
Float.compare(mVerticalWallpaperOffset, mFinalVerticalWallpaperOffset) == 0) {
mIsMovingFast = false;
return false;
}
boolean isLandscape = mDisplaySize.x > mDisplaySize.y;
long currentTime = System.currentTimeMillis();
long timeSinceLastUpdate = currentTime - mLastWallpaperOffsetUpdateTime;
timeSinceLastUpdate = Math.min((long) (1000/30f), timeSinceLastUpdate);
timeSinceLastUpdate = Math.max(1L, timeSinceLastUpdate);
float xdiff = Math.abs(mFinalHorizontalWallpaperOffset - mHorizontalWallpaperOffset);
if (!mIsMovingFast && xdiff > 0.07) {
mIsMovingFast = true;
}
float fractionToCatchUpIn1MsHorizontal;
if (mOverrideHorizontalCatchupConstant) {
fractionToCatchUpIn1MsHorizontal = mHorizontalCatchupConstant;
} else if (mIsMovingFast) {
fractionToCatchUpIn1MsHorizontal = isLandscape ? 0.5f : 0.75f;
} else {
// slow
fractionToCatchUpIn1MsHorizontal = isLandscape ? 0.27f : 0.5f;
}
float fractionToCatchUpIn1MsVertical = mVerticalCatchupConstant;
fractionToCatchUpIn1MsHorizontal /= 33f;
fractionToCatchUpIn1MsVertical /= 33f;
final float UPDATE_THRESHOLD = 0.00001f;
float hOffsetDelta = mFinalHorizontalWallpaperOffset - mHorizontalWallpaperOffset;
float vOffsetDelta = mFinalVerticalWallpaperOffset - mVerticalWallpaperOffset;
boolean jumpToFinalValue = Math.abs(hOffsetDelta) < UPDATE_THRESHOLD &&
Math.abs(vOffsetDelta) < UPDATE_THRESHOLD;
// Don't have any lag between workspace and wallpaper on non-large devices
if (!LauncherApplication.isScreenLarge() || jumpToFinalValue) {
mHorizontalWallpaperOffset = mFinalHorizontalWallpaperOffset;
mVerticalWallpaperOffset = mFinalVerticalWallpaperOffset;
} else {
float percentToCatchUpVertical =
Math.min(1.0f, timeSinceLastUpdate * fractionToCatchUpIn1MsVertical);
float percentToCatchUpHorizontal =
Math.min(1.0f, timeSinceLastUpdate * fractionToCatchUpIn1MsHorizontal);
mHorizontalWallpaperOffset += percentToCatchUpHorizontal * hOffsetDelta;
mVerticalWallpaperOffset += percentToCatchUpVertical * vOffsetDelta;
}
mLastWallpaperOffsetUpdateTime = System.currentTimeMillis();
return true;
}
public float getCurrX() {
return mHorizontalWallpaperOffset;
}
public float getFinalX() {
return mFinalHorizontalWallpaperOffset;
}
public float getCurrY() {
return mVerticalWallpaperOffset;
}
public float getFinalY() {
return mFinalVerticalWallpaperOffset;
}
public void setFinalX(float x) {
mFinalHorizontalWallpaperOffset = Math.max(0f, Math.min(x, 1.0f));
}
public void setFinalY(float y) {
mFinalVerticalWallpaperOffset = Math.max(0f, Math.min(y, 1.0f));
}
public void jumpToFinal() {
mHorizontalWallpaperOffset = mFinalHorizontalWallpaperOffset;
mVerticalWallpaperOffset = mFinalVerticalWallpaperOffset;
}
}
@Override
public void computeScroll() {
super.computeScroll();
syncWallpaperOffsetWithScroll();
}
void showOutlines() {
if (!isSmall() && !mIsSwitchingState) {
if (mChildrenOutlineFadeOutAnimation != null) mChildrenOutlineFadeOutAnimation.cancel();
if (mChildrenOutlineFadeInAnimation != null) mChildrenOutlineFadeInAnimation.cancel();
mChildrenOutlineFadeInAnimation = LauncherAnimUtils.ofFloat(this, "childrenOutlineAlpha", 1.0f);
mChildrenOutlineFadeInAnimation.setDuration(CHILDREN_OUTLINE_FADE_IN_DURATION);
mChildrenOutlineFadeInAnimation.start();
}
}
void hideOutlines() {
if (!isSmall() && !mIsSwitchingState) {
if (mChildrenOutlineFadeInAnimation != null) mChildrenOutlineFadeInAnimation.cancel();
if (mChildrenOutlineFadeOutAnimation != null) mChildrenOutlineFadeOutAnimation.cancel();
mChildrenOutlineFadeOutAnimation = LauncherAnimUtils.ofFloat(this, "childrenOutlineAlpha", 0.0f);
mChildrenOutlineFadeOutAnimation.setDuration(CHILDREN_OUTLINE_FADE_OUT_DURATION);
mChildrenOutlineFadeOutAnimation.setStartDelay(CHILDREN_OUTLINE_FADE_OUT_DELAY);
mChildrenOutlineFadeOutAnimation.start();
}
}
public void showOutlinesTemporarily() {
if (!mIsPageMoving && !isTouchActive()) {
snapToPage(mCurrentPage);
}
}
public void setChildrenOutlineAlpha(float alpha) {
mChildrenOutlineAlpha = alpha;
for (int i = 0; i < getChildCount(); i++) {
CellLayout cl = (CellLayout) getChildAt(i);
cl.setBackgroundAlpha(alpha);
}
}
public float getChildrenOutlineAlpha() {
return mChildrenOutlineAlpha;
}
void disableBackground() {
mDrawBackground = false;
}
void enableBackground() {
mDrawBackground = true;
}
private void animateBackgroundGradient(float finalAlpha, boolean animated) {
if (mBackground == null) return;
if (mBackgroundFadeInAnimation != null) {
mBackgroundFadeInAnimation.cancel();
mBackgroundFadeInAnimation = null;
}
if (mBackgroundFadeOutAnimation != null) {
mBackgroundFadeOutAnimation.cancel();
mBackgroundFadeOutAnimation = null;
}
float startAlpha = getBackgroundAlpha();
if (finalAlpha != startAlpha) {
if (animated) {
mBackgroundFadeOutAnimation = LauncherAnimUtils.ofFloat(startAlpha, finalAlpha);
mBackgroundFadeOutAnimation.addUpdateListener(new AnimatorUpdateListener() {
public void onAnimationUpdate(ValueAnimator animation) {
setBackgroundAlpha(((Float) animation.getAnimatedValue()).floatValue());
}
});
mBackgroundFadeOutAnimation.setInterpolator(new DecelerateInterpolator(1.5f));
mBackgroundFadeOutAnimation.setDuration(BACKGROUND_FADE_OUT_DURATION);
mBackgroundFadeOutAnimation.start();
} else {
setBackgroundAlpha(finalAlpha);
}
}
}
public void setBackgroundAlpha(float alpha) {
if (alpha != mBackgroundAlpha) {
mBackgroundAlpha = alpha;
invalidate();
}
}
public float getBackgroundAlpha() {
return mBackgroundAlpha;
}
float backgroundAlphaInterpolator(float r) {
float pivotA = 0.1f;
float pivotB = 0.4f;
if (r < pivotA) {
return 0;
} else if (r > pivotB) {
return 1.0f;
} else {
return (r - pivotA)/(pivotB - pivotA);
}
}
float overScrollBackgroundAlphaInterpolator(float r) {
float threshold = 0.08f;
if (r > mOverScrollMaxBackgroundAlpha) {
mOverScrollMaxBackgroundAlpha = r;
} else if (r < mOverScrollMaxBackgroundAlpha) {
r = mOverScrollMaxBackgroundAlpha;
}
return Math.min(r / threshold, 1.0f);
}
private void updatePageAlphaValues(int screenCenter) {
boolean isInOverscroll = mOverScrollX < 0 || mOverScrollX > mMaxScrollX;
if (mWorkspaceFadeInAdjacentScreens &&
mState == State.NORMAL &&
!mIsSwitchingState &&
!isInOverscroll) {
for (int i = 0; i < getChildCount(); i++) {
CellLayout child = (CellLayout) getChildAt(i);
if (child != null) {
float scrollProgress = getScrollProgress(screenCenter, child, i);
float alpha = 1 - Math.abs(scrollProgress);
child.getShortcutsAndWidgets().setAlpha(alpha);
if (!mIsDragOccuring) {
child.setBackgroundAlphaMultiplier(
backgroundAlphaInterpolator(Math.abs(scrollProgress)));
} else {
child.setBackgroundAlphaMultiplier(1f);
}
}
}
}
}
private void setChildrenBackgroundAlphaMultipliers(float a) {
for (int i = 0; i < getChildCount(); i++) {
CellLayout child = (CellLayout) getChildAt(i);
child.setBackgroundAlphaMultiplier(a);
}
}
//Added by Joseth START
private void screenScrolledCube(int screenCenter, int leftIdx, int rightIdx) {
float rotation;
float pivotX;
CellLayout child = null;
float scrollProgress = 0.0f;
for (int i = 0; i < getChildCount(); i++) {
child = (CellLayout)getPageAt(i);
scrollProgress = getScrollProgress(screenCenter, child, i);
//child.setOverScrollAmount(Math.abs(scrollProgress), true);
if (i == leftIdx)
pivotX = child.getMeasuredWidth();
else if (i == rightIdx)
pivotX = 0.0f;
else
pivotX = child.getMeasuredWidth() * 0.5f;
rotation = -1.0f * scrollProgress * 90.0f;
child.setCameraDistance(mDensity * mCameraDistance);
child.setPivotX(pivotX);
child.setRotationY(rotation);
}
}
private void screenScrolledFlip(int screenCenter, int leftIdx, int rightIdx) {
CellLayout child = null;
float scrollProgress;
float rotation;
float pivotX;
float translationX;
float width;
float alpha;
for (int i = 0; i < getChildCount(); i++) {
child = (CellLayout)getPageAt(i);
scrollProgress = getScrollProgress(screenCenter, child, i);
//child.setOverScrollAmount(Math.abs(scrollProgress), true);
width = child.getMeasuredWidth();
if (!isSupportCycleSlidingScreen() && i == 0 && scrollProgress < 0) {
rotation = -45.0f * scrollProgress;
pivotX = 0.65f * width;
translationX = 0;
} else if (!isSupportCycleSlidingScreen()
&& i == getChildCount() - 1 && scrollProgress > 0) {
rotation = -45.0f * scrollProgress;
pivotX = 0.35f * width;
translationX = 0;
} else {
rotation = -180.0f * scrollProgress;
pivotX = width * 0.5f;
translationX = (i == leftIdx || i == rightIdx) ? scrollProgress * width : 0;
}
alpha = (rotation > 90.0f || rotation < -90.0f) ? 0.0f : 1.0f;
child.setCameraDistance(mDensity * mCameraDistance);
child.setPivotX(pivotX);
child.setRotationY(rotation);
child.setAlpha(alpha);
child.setTranslationX(translationX);
// If the view has 0 alpha, we set it to be invisible so as to prevent
// it from accepting touches
if (alpha == 0) {
child.setVisibility(INVISIBLE);
} else if (child.getVisibility() != VISIBLE) {
child.setVisibility(VISIBLE);
}
}
}
private void screenScrolledWave(int screenCenter, int leftIdx, int rightIdx) {
CellLayout child = null;
float scrollProgress = 0.0f;
float scaleX;
float scaleY;
for (int i = 0; i < getChildCount(); i++) {
child = (CellLayout)getPageAt(i);
scrollProgress = getScrollProgress(screenCenter, child, i);
//child.setOverScrollAmount(Math.abs(scrollProgress), true);
if (i == leftIdx || i == rightIdx)
scaleY = scaleX = 1.0f - Math.abs(scrollProgress);
else
scaleX = scaleY = 1.0f;
child.setScaleX(scaleX);
child.setScaleY(scaleY);
}
}
private void screenScrolledWindmills(int screenCenter, int leftIdx, int rightIdx) {
float rotation;
float cameraDistance;
float pivotX;
float pivotY;
CellLayout child = null;
float scrollProgress = 0.0f;
for (int i = 0; i < getChildCount(); i++) {
child = (CellLayout)getPageAt(i);
scrollProgress = getScrollProgress(screenCenter, child, i);
//child.setOverScrollAmount(Math.abs(scrollProgress), true);
if (i == leftIdx || i == rightIdx) {
rotation = scrollProgress * 30.0f;
pivotX = child.getMeasuredWidth() * 0.5f;
pivotY = 0.0f;//child.getMeasuredHeight() * (0.0f);
} else {
rotation = 0.0f;
pivotX = child.getMeasuredWidth() * 0.5f;
pivotY = child.getMeasuredHeight() * 0.5f;
}
child.setCameraDistance(mDensity * mCameraDistance);
child.setPivotX(pivotX);
child.setPivotY(pivotY);
child.setRotation(rotation);
}
}
private void screenScrolledExtrusion(int screenCenter, int leftIdx, int rightIdx) {
CellLayout child = null;
float scrollProgress = 0.0f;
float scaleX;
float scaleY = 1.0f;
float translationX;
float width;
for (int i = 0; i < getChildCount(); i++) {
child = (CellLayout)getPageAt(i);
scrollProgress = getScrollProgress(screenCenter, child, i);
if (i == leftIdx || i == rightIdx) {
scaleX = 1.0f - Math.abs(scrollProgress);
} else {
scaleX = 1.0f;
}
width = child.getMeasuredWidth();
if (!isSupportCycleSlidingScreen() && i == 0 && scrollProgress < 0) {
translationX = 0;
} else if (!isSupportCycleSlidingScreen()
&& i == getChildCount() - 1 && scrollProgress > 0) {
translationX = 0;
} else {
translationX = (i == leftIdx || i == rightIdx) ? 0.5f * scrollProgress * width : 0;
}
child.setScaleX(scaleX);
child.setTranslationX(translationX);
}
}
private void screenScrolledCommonReset() {
int count = getChildCount();
for (int i = 0; i < count; i++) {
CellLayout cl = (CellLayout) getChildAt(i);
cl.setRotationX(0.0f);
cl.setRotationY(0.0f);
cl.setRotation(0.0f);
/* hdpi = 1920, mdpi = 1280 */
cl.setCameraDistance(mDensity * 1920);
/* Default in the center */
cl.setPivotX(cl.getMeasuredWidth() * 0.5f);
cl.setPivotY(cl.getMeasuredHeight() * 0.5f);
cl.setScaleX(1.0f);
cl.setScaleY(1.0f);
cl.setAlpha(1.0f);
cl.setVisibility(VISIBLE);
cl.setTranslationX(0.0f);
cl.setOverScrollAmount(0, false);
}
invalidate();
}
public void screenScrolledReset(String prevEffect) {
if (prevEffect.equals(EffectSettings.WORKSPACE_EFFECT_CUBE)
|| prevEffect.equals(EffectSettings.WORKSPACE_EFFECT_FLIP)
|| prevEffect.equals(EffectSettings.WORKSPACE_EFFECT_WAVE)
|| prevEffect.equals(EffectSettings.WORKSPACE_EFFECT_WINDMILLS)
|| prevEffect.equals(EffectSettings.WORKSPACE_EFFECT_EXTRUSION)) {
screenScrolledCommonReset();
}
}
//Added by Joseth END
@Override
protected void screenScrolled(int screenCenter) {
int leftIdx, rightIdx;
super.screenScrolled(screenCenter);
if (getChildCount() == 0)
return;
updatePageAlphaValues(screenCenter);
enableHwLayersOnVisiblePages();
/* Get the visable page(s) */
int[] tmpVisiblePagesRange = new int[2];
getVisiblePagesICS(tmpVisiblePagesRange);
leftIdx = tmpVisiblePagesRange[0];
rightIdx = tmpVisiblePagesRange[1];
if (leftIdx == rightIdx) {
if (rightIdx == getChildCount() - 1)
leftIdx = -1;
else
rightIdx = -1;
}
String workspaceEffect = mLauncher.getWorkspaceEffect();
if (mIsDragOccuring) {
workspaceEffect = ""; // Default
}
if (workspaceEffect.equals(EffectSettings.WORKSPACE_EFFECT_CUBE)) {
screenScrolledCube(screenCenter, leftIdx, rightIdx);
} else if (workspaceEffect.equals(EffectSettings.WORKSPACE_EFFECT_FLIP)) {
screenScrolledFlip(screenCenter, leftIdx, rightIdx);
} else if (workspaceEffect.equals(EffectSettings.WORKSPACE_EFFECT_WAVE)) {
screenScrolledWave(screenCenter, leftIdx, rightIdx);
} else if (workspaceEffect
.equals(EffectSettings.WORKSPACE_EFFECT_WINDMILLS)) {
screenScrolledWindmills(screenCenter, leftIdx, rightIdx);
} else if (workspaceEffect
.equals(EffectSettings.WORKSPACE_EFFECT_EXTRUSION)) {
screenScrolledExtrusion(screenCenter, leftIdx, rightIdx);
} else {
if (mOverScrollX < 0 || mOverScrollX > mMaxScrollX) {
int index = mOverScrollX < 0 ? 0 : getChildCount() - 1;
CellLayout cl = (CellLayout) getChildAt(index);
float scrollProgress = getScrollProgress(screenCenter, cl,
index);
cl.setOverScrollAmount(Math.abs(scrollProgress), index == 0);
float rotation = -WORKSPACE_OVERSCROLL_ROTATION
* scrollProgress;
cl.setRotationY(rotation);
setFadeForOverScroll(Math.abs(scrollProgress));
if (!mOverscrollTransformsSet) {
mOverscrollTransformsSet = true;
cl.setCameraDistance(mDensity * mCameraDistance);
cl.setPivotX(cl.getMeasuredWidth()
* (index == 0 ? 0.75f : 0.25f));
cl.setPivotY(cl.getMeasuredHeight() * 0.5f);
cl.setOverscrollTransformsDirty(true);
}
} else {
if (mOverscrollFade != 0) {
setFadeForOverScroll(0);
}
if (mOverscrollTransformsSet) {
mOverscrollTransformsSet = false;
((CellLayout) getChildAt(0)).resetOverscrollTransforms();
((CellLayout) getChildAt(getChildCount() - 1))
.resetOverscrollTransforms();
}
}
}
}
@Override
protected void overScroll(float amount) {
acceleratedOverScroll(amount);
}
protected void onAttachedToWindow() {
super.onAttachedToWindow();
mWindowToken = getWindowToken();
computeScroll();
mDragController.setWindowToken(mWindowToken);
}
protected void onDetachedFromWindow() {
mWindowToken = null;
}
@Override
protected void onLayout(boolean changed, int left, int top, int right, int bottom) {
if (mFirstLayout && mCurrentPage >= 0 && mCurrentPage < getChildCount()) {
mUpdateWallpaperOffsetImmediately = true;
}
super.onLayout(changed, left, top, right, bottom);
}
@Override
protected void onDraw(Canvas canvas) {
updateWallpaperOffsets();
// Draw the background gradient if necessary
if (mBackground != null && mBackgroundAlpha > 0.0f && mDrawBackground) {
int alpha = (int) (mBackgroundAlpha * 255);
mBackground.setAlpha(alpha);
mBackground.setBounds(getScrollX(), 0, getScrollX() + getMeasuredWidth(),
getMeasuredHeight());
mBackground.draw(canvas);
}
super.onDraw(canvas);
// Call back to LauncherModel to finish binding after the first draw
post(mBindPages);
}
boolean isDrawingBackgroundGradient() {
return (mBackground != null && mBackgroundAlpha > 0.0f && mDrawBackground);
}
@Override
protected boolean onRequestFocusInDescendants(int direction, Rect previouslyFocusedRect) {
if (!mLauncher.isAllAppsVisible()) {
final Folder openFolder = getOpenFolder();
if (openFolder != null) {
return openFolder.requestFocus(direction, previouslyFocusedRect);
} else {
return super.onRequestFocusInDescendants(direction, previouslyFocusedRect);
}
}
return false;
}
@Override
public int getDescendantFocusability() {
if (isSmall()) {
return ViewGroup.FOCUS_BLOCK_DESCENDANTS;
}
return super.getDescendantFocusability();
}
@Override
public void addFocusables(ArrayList<View> views, int direction, int focusableMode) {
if (!mLauncher.isAllAppsVisible()) {
final Folder openFolder = getOpenFolder();
if (openFolder != null) {
openFolder.addFocusables(views, direction);
} else {
super.addFocusables(views, direction, focusableMode);
}
}
}
public boolean isSmall() {
return mState == State.SMALL || mState == State.SPRING_LOADED;
}
void enableChildrenCache(int fromPage, int toPage) {
if (fromPage > toPage) {
final int temp = fromPage;
fromPage = toPage;
toPage = temp;
}
final int screenCount = getChildCount();
fromPage = Math.max(fromPage, 0);
toPage = Math.min(toPage, screenCount - 1);
for (int i = fromPage; i <= toPage; i++) {
final CellLayout layout = (CellLayout) getChildAt(i);
layout.setChildrenDrawnWithCacheEnabled(true);
layout.setChildrenDrawingCacheEnabled(true);
}
}
void clearChildrenCache() {
final int screenCount = getChildCount();
for (int i = 0; i < screenCount; i++) {
final CellLayout layout = (CellLayout) getChildAt(i);
layout.setChildrenDrawnWithCacheEnabled(false);
// In software mode, we don't want the items to continue to be drawn into bitmaps
if (!isHardwareAccelerated()) {
layout.setChildrenDrawingCacheEnabled(false);
}
}
}
private void updateChildrenLayersEnabled(boolean force) {
boolean small = mState == State.SMALL || mIsSwitchingState;
boolean enableChildrenLayers = force || small || mAnimatingViewIntoPlace || isPageMoving();
if (enableChildrenLayers != mChildrenLayersEnabled) {
mChildrenLayersEnabled = enableChildrenLayers;
if (mChildrenLayersEnabled) {
enableHwLayersOnVisiblePages();
} else {
for (int i = 0; i < getPageCount(); i++) {
final CellLayout cl = (CellLayout) getChildAt(i);
cl.disableHardwareLayers();
}
}
}
}
private void enableHwLayersOnVisiblePages() {
if (mChildrenLayersEnabled) {
final int screenCount = getChildCount();
getVisiblePages(mTempVisiblePagesRange);
int leftScreen = mTempVisiblePagesRange[0];
int rightScreen = mTempVisiblePagesRange[1];
if (leftScreen == rightScreen) {
// make sure we're caching at least two pages always
if (rightScreen < screenCount - 1) {
rightScreen++;
} else if (leftScreen > 0) {
leftScreen--;
}
}
for (int i = 0; i < screenCount; i++) {
final CellLayout layout = (CellLayout) getChildAt(i);
if (!(leftScreen <= i && i <= rightScreen && shouldDrawChild(layout))) {
layout.disableHardwareLayers();
}
}
for (int i = 0; i < screenCount; i++) {
final CellLayout layout = (CellLayout) getChildAt(i);
if (leftScreen <= i && i <= rightScreen && shouldDrawChild(layout)) {
layout.enableHardwareLayers();
}
}
}
}
public void buildPageHardwareLayers() {
// force layers to be enabled just for the call to buildLayer
updateChildrenLayersEnabled(true);
if (getWindowToken() != null) {
final int childCount = getChildCount();
for (int i = 0; i < childCount; i++) {
CellLayout cl = (CellLayout) getChildAt(i);
cl.buildHardwareLayer();
}
}
updateChildrenLayersEnabled(false);
}
protected void onWallpaperTap(MotionEvent ev) {
final int[] position = mTempCell;
getLocationOnScreen(position);
int pointerIndex = ev.getActionIndex();
position[0] += (int) ev.getX(pointerIndex);
position[1] += (int) ev.getY(pointerIndex);
mWallpaperManager.sendWallpaperCommand(getWindowToken(),
ev.getAction() == MotionEvent.ACTION_UP
? WallpaperManager.COMMAND_TAP : WallpaperManager.COMMAND_SECONDARY_TAP,
position[0], position[1], 0, null);
}
/*
* This interpolator emulates the rate at which the perceived scale of an object changes
* as its distance from a camera increases. When this interpolator is applied to a scale
* animation on a view, it evokes the sense that the object is shrinking due to moving away
* from the camera.
*/
static class ZInterpolator implements TimeInterpolator {
private float focalLength;
public ZInterpolator(float foc) {
focalLength = foc;
}
public float getInterpolation(float input) {
return (1.0f - focalLength / (focalLength + input)) /
(1.0f - focalLength / (focalLength + 1.0f));
}
}
/*
* The exact reverse of ZInterpolator.
*/
static class InverseZInterpolator implements TimeInterpolator {
private ZInterpolator zInterpolator;
public InverseZInterpolator(float foc) {
zInterpolator = new ZInterpolator(foc);
}
public float getInterpolation(float input) {
return 1 - zInterpolator.getInterpolation(1 - input);
}
}
/*
* ZInterpolator compounded with an ease-out.
*/
static class ZoomOutInterpolator implements TimeInterpolator {
private final DecelerateInterpolator decelerate = new DecelerateInterpolator(0.75f);
private final ZInterpolator zInterpolator = new ZInterpolator(0.13f);
public float getInterpolation(float input) {
return decelerate.getInterpolation(zInterpolator.getInterpolation(input));
}
}
/*
* InvereZInterpolator compounded with an ease-out.
*/
static class ZoomInInterpolator implements TimeInterpolator {
private final InverseZInterpolator inverseZInterpolator = new InverseZInterpolator(0.35f);
private final DecelerateInterpolator decelerate = new DecelerateInterpolator(3.0f);
public float getInterpolation(float input) {
return decelerate.getInterpolation(inverseZInterpolator.getInterpolation(input));
}
}
private final ZoomInInterpolator mZoomInInterpolator = new ZoomInInterpolator();
/*
*
* We call these methods (onDragStartedWithItemSpans/onDragStartedWithSize) whenever we
* start a drag in Launcher, regardless of whether the drag has ever entered the Workspace
*
* These methods mark the appropriate pages as accepting drops (which alters their visual
* appearance).
*
*/
public void onDragStartedWithItem(View v) {
final Canvas canvas = new Canvas();
// The outline is used to visualize where the item will land if dropped
mDragOutline = createDragOutline(v, canvas, DRAG_BITMAP_PADDING);
}
public void onDragStartedWithItem(PendingAddItemInfo info, Bitmap b, boolean clipAlpha) {
final Canvas canvas = new Canvas();
int[] size = estimateItemSize(info.spanX, info.spanY, info, false);
// The outline is used to visualize where the item will land if dropped
mDragOutline = createDragOutline(b, canvas, DRAG_BITMAP_PADDING, size[0],
size[1], clipAlpha);
}
public void exitWidgetResizeMode() {
DragLayer dragLayer = mLauncher.getDragLayer();
dragLayer.clearAllResizeFrames();
}
private void initAnimationArrays() {
final int childCount = getChildCount();
if (mOldTranslationXs != null && mOldTranslationXs.length == childCount) return;
mOldTranslationXs = new float[childCount];
mOldTranslationYs = new float[childCount];
mOldScaleXs = new float[childCount];
mOldScaleYs = new float[childCount];
mOldBackgroundAlphas = new float[childCount];
mOldAlphas = new float[childCount];
mNewTranslationXs = new float[childCount];
mNewTranslationYs = new float[childCount];
mNewScaleXs = new float[childCount];
mNewScaleYs = new float[childCount];
mNewBackgroundAlphas = new float[childCount];
mNewAlphas = new float[childCount];
mNewRotationYs = new float[childCount];
}
Animator getChangeStateAnimation(final State state, boolean animated) {
return getChangeStateAnimation(state, animated, 0);
}
Animator getChangeStateAnimation(final State state, boolean animated, int delay) {
Log.e("JIANG", "the state is " + state + " mState is " + mState);
if (mState == state) {
return null;
}
// Initialize animation arrays for the first time if necessary
initAnimationArrays();
AnimatorSet anim = animated ? LauncherAnimUtils.createAnimatorSet() : null;
// Stop any scrolling, move to the current page right away
setCurrentPage(getNextPage());
final State oldState = mState;
final boolean oldStateIsNormal = (oldState == State.NORMAL);
final boolean oldStateIsSpringLoaded = (oldState == State.SPRING_LOADED);
final boolean oldStateIsSmall = (oldState == State.SMALL);
mState = state;
final boolean stateIsNormal = (state == State.NORMAL);
final boolean stateIsSpringLoaded = (state == State.SPRING_LOADED);
final boolean stateIsSmall = (state == State.SMALL);
float finalScaleFactor = 1.0f;
int finalRotation = 90;
float finalBackgroundAlpha = stateIsSpringLoaded ? 1.0f : 0f;
float translationX = 0;
float translationY = 0;
boolean zoomIn = true;
if (state != State.NORMAL) {
finalScaleFactor = mSpringLoadedShrinkFactor - (stateIsSmall ? 0.1f : 0);
setPageSpacing(mSpringLoadedPageSpacing);
if (oldStateIsNormal && stateIsSmall) {
zoomIn = false;
setLayoutScale(finalScaleFactor);
updateChildrenLayersEnabled(false);
} else {
finalBackgroundAlpha = 1.0f;
setLayoutScale(finalScaleFactor);
}
} else {
finalRotation = 0;
setPageSpacing(mOriginalPageSpacing);
setLayoutScale(1.0f);
}
final int duration = zoomIn ?
getResources().getInteger(R.integer.config_workspaceUnshrinkTime) :
getResources().getInteger(R.integer.config_appsCustomizeWorkspaceShrinkTime);
for (int i = 0; i < getChildCount(); i++) {
final CellLayout cl = (CellLayout) getChildAt(i);
float finalAlpha = (!mWorkspaceFadeInAdjacentScreens || stateIsSpringLoaded ||
(i == mCurrentPage)) ? 1f : 0f;
float currentAlpha = cl.getShortcutsAndWidgets().getAlpha();
float initialAlpha = currentAlpha;
// Determine the pages alpha during the state transition
if ((oldStateIsSmall && stateIsNormal) ||
(oldStateIsNormal && stateIsSmall)) {
// To/from workspace - only show the current page unless the transition is not
// animated and the animation end callback below doesn't run;
// or, if we're in spring-loaded mode
if (i == mCurrentPage || !animated || oldStateIsSpringLoaded) {
finalAlpha = 1f;
} else {
initialAlpha = 0f;
finalAlpha = 0f;
}
}
mOldAlphas[i] = initialAlpha;
mNewAlphas[i] = finalAlpha;
if (animated) {
mOldTranslationXs[i] = cl.getTranslationX();
mOldTranslationYs[i] = cl.getTranslationY();
mOldScaleXs[i] = cl.getScaleX();
mOldScaleYs[i] = cl.getScaleY();
mOldBackgroundAlphas[i] = cl.getBackgroundAlpha();
mNewTranslationXs[i] = translationX;
mNewTranslationYs[i] = translationY;
mNewScaleXs[i] = finalScaleFactor;
mNewScaleYs[i] = finalScaleFactor;
mNewBackgroundAlphas[i] = finalBackgroundAlpha;
} else {
cl.setTranslationX(translationX);
cl.setTranslationY(translationY);
cl.setScaleX(finalScaleFactor);
cl.setScaleY(finalScaleFactor);
cl.setBackgroundAlpha(finalBackgroundAlpha);
cl.setShortcutAndWidgetAlpha(finalAlpha);
}
}
if (animated) {
for (int index = 0; index < getChildCount(); index++) {
final int i = index;
final CellLayout cl = (CellLayout) getChildAt(i);
float currentAlpha = cl.getShortcutsAndWidgets().getAlpha();
if (mOldAlphas[i] == 0 && mNewAlphas[i] == 0) {
cl.setTranslationX(mNewTranslationXs[i]);
cl.setTranslationY(mNewTranslationYs[i]);
cl.setScaleX(mNewScaleXs[i]);
cl.setScaleY(mNewScaleYs[i]);
cl.setBackgroundAlpha(mNewBackgroundAlphas[i]);
cl.setShortcutAndWidgetAlpha(mNewAlphas[i]);
cl.setRotationY(mNewRotationYs[i]);
} else {
LauncherViewPropertyAnimator a = new LauncherViewPropertyAnimator(cl);
a.translationX(mNewTranslationXs[i])
.translationY(mNewTranslationYs[i])
.scaleX(mNewScaleXs[i])
.scaleY(mNewScaleYs[i])
.setDuration(duration)
.setInterpolator(mZoomInInterpolator);
anim.play(a);
Log.e("JIANG", " the finalRotation is " + finalRotation);
//cl.setPivotX(cl.getWidth() / 2); //此行代表celllayout旋转时的轴
//cl.setPivotY(cl.getHeight() / 2);
/**LauncherViewPropertyAnimator rotateAnim = new LauncherViewPropertyAnimator(cl);
rotateAnim.rotationX(finalRotation)
.setDuration(1500)
.setInterpolator(mZoomInInterpolator);
anim.play(rotateAnim);*/
if (mOldAlphas[i] != mNewAlphas[i] || currentAlpha != mNewAlphas[i]) {
LauncherViewPropertyAnimator alphaAnim =
new LauncherViewPropertyAnimator(cl.getShortcutsAndWidgets());
alphaAnim.alpha(mNewAlphas[i])
.setDuration(duration)
.setInterpolator(mZoomInInterpolator);
anim.play(alphaAnim);
}
if (mOldBackgroundAlphas[i] != 0 ||
mNewBackgroundAlphas[i] != 0) {
ValueAnimator bgAnim = LauncherAnimUtils.ofFloat(0f, 1f).setDuration(duration);
bgAnim.setInterpolator(mZoomInInterpolator);
bgAnim.addUpdateListener(new LauncherAnimatorUpdateListener() {
public void onAnimationUpdate(float a, float b) {
cl.setBackgroundAlpha(
a * mOldBackgroundAlphas[i] +
b * mNewBackgroundAlphas[i]);
}
});
anim.play(bgAnim);
}
}
}
buildPageHardwareLayers();
anim.setStartDelay(delay);
}
if (stateIsSpringLoaded) {
// Right now we're covered by Apps Customize
// Show the background gradient immediately, so the gradient will
// be showing once AppsCustomize disappears
animateBackgroundGradient(getResources().getInteger(
R.integer.config_appsCustomizeSpringLoadedBgAlpha) / 100f, false);
} else {
// Fade the background gradient away
animateBackgroundGradient(0f, true);
}
return anim;
}
@Override
public void onLauncherTransitionPrepare(Launcher l, boolean animated, boolean toWorkspace) {
mIsSwitchingState = true;
cancelScrollingIndicatorAnimations();
}
@Override
public void onLauncherTransitionStart(Launcher l, boolean animated, boolean toWorkspace) {
}
@Override
public void onLauncherTransitionStep(Launcher l, float t) {
mTransitionProgress = t;
}
@Override
public void onLauncherTransitionEnd(Launcher l, boolean animated, boolean toWorkspace) {
mIsSwitchingState = false;
mWallpaperOffset.setOverrideHorizontalCatchupConstant(false);
updateChildrenLayersEnabled(false);
// The code in getChangeStateAnimation to determine initialAlpha and finalAlpha will ensure
// ensure that only the current page is visible during (and subsequently, after) the
// transition animation. If fade adjacent pages is disabled, then re-enable the page
// visibility after the transition animation.
if (!mWorkspaceFadeInAdjacentScreens) {
for (int i = 0; i < getChildCount(); i++) {
final CellLayout cl = (CellLayout) getChildAt(i);
cl.setShortcutAndWidgetAlpha(1f);
}
}
}
@Override
public View getContent() {
return this;
}
/**
* Draw the View v into the given Canvas.
*
* @param v the view to draw
* @param destCanvas the canvas to draw on
* @param padding the horizontal and vertical padding to use when drawing
*/
private void drawDragView(View v, Canvas destCanvas, int padding, boolean pruneToDrawable) {
final Rect clipRect = mTempRect;
v.getDrawingRect(clipRect);
boolean textVisible = false;
destCanvas.save();
if (v instanceof TextView && pruneToDrawable) {
Drawable d = ((TextView) v).getCompoundDrawables()[1];
clipRect.set(0, 0, d.getIntrinsicWidth() + padding, d.getIntrinsicHeight() + padding);
destCanvas.translate(padding / 2, padding / 2);
d.draw(destCanvas);
} else {
if (v instanceof FolderIcon) {
// For FolderIcons the text can bleed into the icon area, and so we need to
// hide the text completely (which can't be achieved by clipping).
if (((FolderIcon) v).getTextVisible()) {
((FolderIcon) v).setTextVisible(false);
textVisible = true;
}
} else if (v instanceof BubbleTextView) {
final BubbleTextView tv = (BubbleTextView) v;
clipRect.bottom = tv.getExtendedPaddingTop() - (int) BubbleTextView.PADDING_V +
tv.getLayout().getLineTop(0);
} else if (v instanceof TextView) {
final TextView tv = (TextView) v;
clipRect.bottom = tv.getExtendedPaddingTop() - tv.getCompoundDrawablePadding() +
tv.getLayout().getLineTop(0);
}
destCanvas.translate(-v.getScrollX() + padding / 2, -v.getScrollY() + padding / 2);
destCanvas.clipRect(clipRect, Op.REPLACE);
v.draw(destCanvas);
// Restore text visibility of FolderIcon if necessary
if (textVisible) {
((FolderIcon) v).setTextVisible(true);
}
}
destCanvas.restore();
}
/**
* Returns a new bitmap to show when the given View is being dragged around.
* Responsibility for the bitmap is transferred to the caller.
*/
public Bitmap createDragBitmap(View v, Canvas canvas, int padding) {
Bitmap b;
if (v instanceof TextView) {
Drawable d = ((TextView) v).getCompoundDrawables()[1];
b = Bitmap.createBitmap(d.getIntrinsicWidth() + padding,
d.getIntrinsicHeight() + padding, Bitmap.Config.ARGB_8888);
} else {
b = Bitmap.createBitmap(
v.getWidth() + padding, v.getHeight() + padding, Bitmap.Config.ARGB_8888);
}
canvas.setBitmap(b);
drawDragView(v, canvas, padding, true);
canvas.setBitmap(null);
return b;
}
/**
* Returns a new bitmap to be used as the object outline, e.g. to visualize the drop location.
* Responsibility for the bitmap is transferred to the caller.
*/
private Bitmap createDragOutline(View v, Canvas canvas, int padding) {
final int outlineColor = getResources().getColor(android.R.color.holo_blue_light);
final Bitmap b = Bitmap.createBitmap(
v.getWidth() + padding, v.getHeight() + padding, Bitmap.Config.ARGB_8888);
canvas.setBitmap(b);
drawDragView(v, canvas, padding, true);
mOutlineHelper.applyMediumExpensiveOutlineWithBlur(b, canvas, outlineColor, outlineColor);
canvas.setBitmap(null);
return b;
}
/**
* Returns a new bitmap to be used as the object outline, e.g. to visualize the drop location.
* Responsibility for the bitmap is transferred to the caller.
*/
private Bitmap createDragOutline(Bitmap orig, Canvas canvas, int padding, int w, int h,
boolean clipAlpha) {
final int outlineColor = getResources().getColor(android.R.color.holo_blue_light);
final Bitmap b = Bitmap.createBitmap(w, h, Bitmap.Config.ARGB_8888);
canvas.setBitmap(b);
Rect src = new Rect(0, 0, orig.getWidth(), orig.getHeight());
float scaleFactor = Math.min((w - padding) / (float) orig.getWidth(),
(h - padding) / (float) orig.getHeight());
int scaledWidth = (int) (scaleFactor * orig.getWidth());
int scaledHeight = (int) (scaleFactor * orig.getHeight());
Rect dst = new Rect(0, 0, scaledWidth, scaledHeight);
// center the image
dst.offset((w - scaledWidth) / 2, (h - scaledHeight) / 2);
canvas.drawBitmap(orig, src, dst, null);
mOutlineHelper.applyMediumExpensiveOutlineWithBlur(b, canvas, outlineColor, outlineColor,
clipAlpha);
canvas.setBitmap(null);
return b;
}
void startDrag(CellLayout.CellInfo cellInfo) {
View child = cellInfo.cell;
// Make sure the drag was started by a long press as opposed to a long click.
if (!child.isInTouchMode()) {
return;
}
mDragInfo = cellInfo;
child.setVisibility(INVISIBLE);
CellLayout layout = (CellLayout) child.getParent().getParent();
layout.prepareChildForDrag(child);
child.clearFocus();
child.setPressed(false);
final Canvas canvas = new Canvas();
// The outline is used to visualize where the item will land if dropped
mDragOutline = createDragOutline(child, canvas, DRAG_BITMAP_PADDING);
beginDragShared(child, this);
}
public void beginDragShared(View child, DragSource source) {
Resources r = getResources();
// The drag bitmap follows the touch point around on the screen
final Bitmap b = createDragBitmap(child, new Canvas(), DRAG_BITMAP_PADDING);
final int bmpWidth = b.getWidth();
final int bmpHeight = b.getHeight();
float scale = mLauncher.getDragLayer().getLocationInDragLayer(child, mTempXY);
int dragLayerX =
Math.round(mTempXY[0] - (bmpWidth - scale * child.getWidth()) / 2);
int dragLayerY =
Math.round(mTempXY[1] - (bmpHeight - scale * bmpHeight) / 2
- DRAG_BITMAP_PADDING / 2);
Point dragVisualizeOffset = null;
Rect dragRect = null;
if (child instanceof BubbleTextView || child instanceof PagedViewIcon) {
int iconSize = r.getDimensionPixelSize(R.dimen.app_icon_size);
int iconPaddingTop = r.getDimensionPixelSize(R.dimen.app_icon_padding_top);
int top = child.getPaddingTop();
int left = (bmpWidth - iconSize) / 2;
int right = left + iconSize;
int bottom = top + iconSize;
dragLayerY += top;
// Note: The drag region is used to calculate drag layer offsets, but the
// dragVisualizeOffset in addition to the dragRect (the size) to position the outline.
dragVisualizeOffset = new Point(-DRAG_BITMAP_PADDING / 2,
iconPaddingTop - DRAG_BITMAP_PADDING / 2);
dragRect = new Rect(left, top, right, bottom);
} else if (child instanceof FolderIcon) {
int previewSize = r.getDimensionPixelSize(R.dimen.folder_preview_size);
dragRect = new Rect(0, 0, child.getWidth(), previewSize);
}
// Clear the pressed state if necessary
if (child instanceof BubbleTextView) {
BubbleTextView icon = (BubbleTextView) child;
icon.clearPressedOrFocusedBackground();
}
mDragController.startDrag(b, dragLayerX, dragLayerY, source, child.getTag(),
DragController.DRAG_ACTION_MOVE, dragVisualizeOffset, dragRect, scale);
b.recycle();
// Show the scrolling indicator when you pick up an item
showScrollingIndicator(false);
}
void addApplicationShortcut(ShortcutInfo info, CellLayout target, long container, int screen,
int cellX, int cellY, boolean insertAtFirst, int intersectX, int intersectY) {
View view = mLauncher.createShortcut(R.layout.application, target, (ShortcutInfo) info);
final int[] cellXY = new int[2];
target.findCellForSpanThatIntersects(cellXY, 1, 1, intersectX, intersectY);
addInScreen(view, container, screen, cellXY[0], cellXY[1], 1, 1, insertAtFirst);
LauncherModel.addOrMoveItemInDatabase(mLauncher, info, container, screen, cellXY[0],
cellXY[1]);
}
public boolean transitionStateShouldAllowDrop() {
return ((!isSwitchingState() || mTransitionProgress > 0.5f) && mState != State.SMALL);
}
/**
* {@inheritDoc}
*/
public boolean acceptDrop(DragObject d) {
// If it's an external drop (e.g. from All Apps), check if it should be accepted
CellLayout dropTargetLayout = mDropToLayout;
if (d.dragSource != this) {
// Don't accept the drop if we're not over a screen at time of drop
if (dropTargetLayout == null) {
return false;
}
if (!transitionStateShouldAllowDrop()) return false;
mDragViewVisualCenter = getDragViewVisualCenter(d.x, d.y, d.xOffset, d.yOffset,
d.dragView, mDragViewVisualCenter);
// We want the point to be mapped to the dragTarget.
if (mLauncher.isHotseatLayout(dropTargetLayout)) {
mapPointFromSelfToHotseatLayout(mLauncher.getHotseat(), mDragViewVisualCenter);
} else {
mapPointFromSelfToChild(dropTargetLayout, mDragViewVisualCenter, null);
}
int spanX = 1;
int spanY = 1;
if (mDragInfo != null) {
final CellLayout.CellInfo dragCellInfo = mDragInfo;
spanX = dragCellInfo.spanX;
spanY = dragCellInfo.spanY;
} else {
final ItemInfo dragInfo = (ItemInfo) d.dragInfo;
spanX = dragInfo.spanX;
spanY = dragInfo.spanY;
}
int minSpanX = spanX;
int minSpanY = spanY;
if (d.dragInfo instanceof PendingAddWidgetInfo) {
minSpanX = ((PendingAddWidgetInfo) d.dragInfo).minSpanX;
minSpanY = ((PendingAddWidgetInfo) d.dragInfo).minSpanY;
}
mTargetCell = findNearestArea((int) mDragViewVisualCenter[0],
(int) mDragViewVisualCenter[1], minSpanX, minSpanY, dropTargetLayout,
mTargetCell);
float distance = dropTargetLayout.getDistanceFromCell(mDragViewVisualCenter[0],
mDragViewVisualCenter[1], mTargetCell);
if (willCreateUserFolder((ItemInfo) d.dragInfo, dropTargetLayout,
mTargetCell, distance, true)) {
return true;
}
if (willAddToExistingUserFolder((ItemInfo) d.dragInfo, dropTargetLayout,
mTargetCell, distance)) {
return true;
}
int[] resultSpan = new int[2];
mTargetCell = dropTargetLayout.createArea((int) mDragViewVisualCenter[0],
(int) mDragViewVisualCenter[1], minSpanX, minSpanY, spanX, spanY,
null, mTargetCell, resultSpan, CellLayout.MODE_ACCEPT_DROP);
boolean foundCell = mTargetCell[0] >= 0 && mTargetCell[1] >= 0;
// Don't accept the drop if there's no room for the item
if (!foundCell) {
// Don't show the message if we are dropping on the AllApps button and the hotseat
// is full
boolean isHotseat = mLauncher.isHotseatLayout(dropTargetLayout);
if (mTargetCell != null && isHotseat) {
Hotseat hotseat = mLauncher.getHotseat();
if (hotseat.isAllAppsButtonRank(
hotseat.getOrderInHotseat(mTargetCell[0], mTargetCell[1]))) {
return false;
}
}
mLauncher.showOutOfSpaceMessage(isHotseat);
return false;
}
}
return true;
}
boolean willCreateUserFolder(ItemInfo info, CellLayout target, int[] targetCell, float
distance, boolean considerTimeout) {
if (distance > mMaxDistanceForFolderCreation) return false;
View dropOverView = target.getChildAt(targetCell[0], targetCell[1]);
if (dropOverView != null) {
CellLayout.LayoutParams lp = (CellLayout.LayoutParams) dropOverView.getLayoutParams();
if (lp.useTmpCoords && (lp.tmpCellX != lp.cellX || lp.tmpCellY != lp.tmpCellY)) {
return false;
}
}
boolean hasntMoved = false;
if (mDragInfo != null) {
hasntMoved = dropOverView == mDragInfo.cell;
}
if (dropOverView == null || hasntMoved || (considerTimeout && !mCreateUserFolderOnDrop)) {
return false;
}
boolean aboveShortcut = (dropOverView.getTag() instanceof ShortcutInfo);
boolean willBecomeShortcut =
(info.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPLICATION ||
info.itemType == LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT);
return (aboveShortcut && willBecomeShortcut);
}
boolean willAddToExistingUserFolder(Object dragInfo, CellLayout target, int[] targetCell,
float distance) {
if (distance > mMaxDistanceForFolderCreation) return false;
View dropOverView = target.getChildAt(targetCell[0], targetCell[1]);
if (dropOverView != null) {
CellLayout.LayoutParams lp = (CellLayout.LayoutParams) dropOverView.getLayoutParams();
if (lp.useTmpCoords && (lp.tmpCellX != lp.cellX || lp.tmpCellY != lp.tmpCellY)) {
return false;
}
}
if (dropOverView instanceof FolderIcon) {
FolderIcon fi = (FolderIcon) dropOverView;
if (fi.acceptDrop(dragInfo)) {
return true;
}
}
return false;
}
boolean createUserFolderIfNecessary(View newView, long container, CellLayout target,
int[] targetCell, float distance, boolean external, DragView dragView,
Runnable postAnimationRunnable) {
if (distance > mMaxDistanceForFolderCreation) return false;
View v = target.getChildAt(targetCell[0], targetCell[1]);
boolean hasntMoved = false;
if (mDragInfo != null) {
CellLayout cellParent = getParentCellLayoutForView(mDragInfo.cell);
hasntMoved = (mDragInfo.cellX == targetCell[0] &&
mDragInfo.cellY == targetCell[1]) && (cellParent == target);
}
if (v == null || hasntMoved || !mCreateUserFolderOnDrop) return false;
mCreateUserFolderOnDrop = false;
final int screen = (targetCell == null) ? mDragInfo.screen : indexOfChild(target);
boolean aboveShortcut = (v.getTag() instanceof ShortcutInfo);
boolean willBecomeShortcut = (newView.getTag() instanceof ShortcutInfo);
if (aboveShortcut && willBecomeShortcut) {
ShortcutInfo sourceInfo = (ShortcutInfo) newView.getTag();
ShortcutInfo destInfo = (ShortcutInfo) v.getTag();
// if the drag started here, we need to remove it from the workspace
if (!external) {
getParentCellLayoutForView(mDragInfo.cell).removeView(mDragInfo.cell);
}
Rect folderLocation = new Rect();
float scale = mLauncher.getDragLayer().getDescendantRectRelativeToSelf(v, folderLocation);
target.removeView(v);
FolderIcon fi =
mLauncher.addFolder(target, container, screen, targetCell[0], targetCell[1]);
destInfo.cellX = -1;
destInfo.cellY = -1;
sourceInfo.cellX = -1;
sourceInfo.cellY = -1;
// If the dragView is null, we can't animate
boolean animate = dragView != null;
if (animate) {
fi.performCreateAnimation(destInfo, v, sourceInfo, dragView, folderLocation, scale,
postAnimationRunnable);
} else {
fi.addItem(destInfo);
fi.addItem(sourceInfo);
}
return true;
}
return false;
}
boolean addToExistingFolderIfNecessary(View newView, CellLayout target, int[] targetCell,
float distance, DragObject d, boolean external) {
if (distance > mMaxDistanceForFolderCreation) return false;
View dropOverView = target.getChildAt(targetCell[0], targetCell[1]);
if (!mAddToExistingFolderOnDrop) return false;
mAddToExistingFolderOnDrop = false;
if (dropOverView instanceof FolderIcon) {
FolderIcon fi = (FolderIcon) dropOverView;
if (fi.acceptDrop(d.dragInfo)) {
fi.onDrop(d);
// if the drag started here, we need to remove it from the workspace
if (!external) {
getParentCellLayoutForView(mDragInfo.cell).removeView(mDragInfo.cell);
}
return true;
}
}
return false;
}
public void onDrop(final DragObject d) {
mDragViewVisualCenter = getDragViewVisualCenter(d.x, d.y, d.xOffset, d.yOffset, d.dragView,
mDragViewVisualCenter);
CellLayout dropTargetLayout = mDropToLayout;
// We want the point to be mapped to the dragTarget.
if (dropTargetLayout != null) {
if (mLauncher.isHotseatLayout(dropTargetLayout)) {
mapPointFromSelfToHotseatLayout(mLauncher.getHotseat(), mDragViewVisualCenter);
} else {
mapPointFromSelfToChild(dropTargetLayout, mDragViewVisualCenter, null);
}
}
int snapScreen = -1;
boolean resizeOnDrop = false;
if (d.dragSource != this) {
final int[] touchXY = new int[] { (int) mDragViewVisualCenter[0],
(int) mDragViewVisualCenter[1] };
onDropExternal(touchXY, d.dragInfo, dropTargetLayout, false, d);
} else if (mDragInfo != null) {
final View cell = mDragInfo.cell;
Runnable resizeRunnable = null;
if (dropTargetLayout != null) {
// Move internally
boolean hasMovedLayouts = (getParentCellLayoutForView(cell) != dropTargetLayout);
boolean hasMovedIntoHotseat = mLauncher.isHotseatLayout(dropTargetLayout);
long container = hasMovedIntoHotseat ?
LauncherSettings.Favorites.CONTAINER_HOTSEAT :
LauncherSettings.Favorites.CONTAINER_DESKTOP;
int screen = (mTargetCell[0] < 0) ?
mDragInfo.screen : indexOfChild(dropTargetLayout);
int spanX = mDragInfo != null ? mDragInfo.spanX : 1;
int spanY = mDragInfo != null ? mDragInfo.spanY : 1;
// First we find the cell nearest to point at which the item is
// dropped, without any consideration to whether there is an item there.
mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], (int)
mDragViewVisualCenter[1], spanX, spanY, dropTargetLayout, mTargetCell);
float distance = dropTargetLayout.getDistanceFromCell(mDragViewVisualCenter[0],
mDragViewVisualCenter[1], mTargetCell);
// If the item being dropped is a shortcut and the nearest drop
// cell also contains a shortcut, then create a folder with the two shortcuts.
if (!mInScrollArea && createUserFolderIfNecessary(cell, container,
dropTargetLayout, mTargetCell, distance, false, d.dragView, null)) {
return;
}
if (addToExistingFolderIfNecessary(cell, dropTargetLayout, mTargetCell,
distance, d, false)) {
return;
}
// Aside from the special case where we're dropping a shortcut onto a shortcut,
// we need to find the nearest cell location that is vacant
ItemInfo item = (ItemInfo) d.dragInfo;
int minSpanX = item.spanX;
int minSpanY = item.spanY;
if (item.minSpanX > 0 && item.minSpanY > 0) {
minSpanX = item.minSpanX;
minSpanY = item.minSpanY;
}
int[] resultSpan = new int[2];
mTargetCell = dropTargetLayout.createArea((int) mDragViewVisualCenter[0],
(int) mDragViewVisualCenter[1], minSpanX, minSpanY, spanX, spanY, cell,
mTargetCell, resultSpan, CellLayout.MODE_ON_DROP);
boolean foundCell = mTargetCell[0] >= 0 && mTargetCell[1] >= 0;
// if the widget resizes on drop
if (foundCell && (cell instanceof AppWidgetHostView) &&
(resultSpan[0] != item.spanX || resultSpan[1] != item.spanY)) {
resizeOnDrop = true;
item.spanX = resultSpan[0];
item.spanY = resultSpan[1];
AppWidgetHostView awhv = (AppWidgetHostView) cell;
AppWidgetResizeFrame.updateWidgetSizeRanges(awhv, mLauncher, resultSpan[0],
resultSpan[1]);
}
if (mCurrentPage != screen && !hasMovedIntoHotseat) {
snapScreen = screen;
snapToPage(screen);
}
if (foundCell) {
final ItemInfo info = (ItemInfo) cell.getTag();
if (hasMovedLayouts) {
// Reparent the view
getParentCellLayoutForView(cell).removeView(cell);
addInScreen(cell, container, screen, mTargetCell[0], mTargetCell[1],
info.spanX, info.spanY);
}
// update the item's position after drop
CellLayout.LayoutParams lp = (CellLayout.LayoutParams) cell.getLayoutParams();
lp.cellX = lp.tmpCellX = mTargetCell[0];
lp.cellY = lp.tmpCellY = mTargetCell[1];
lp.cellHSpan = item.spanX;
lp.cellVSpan = item.spanY;
lp.isLockedToGrid = true;
cell.setId(LauncherModel.getCellLayoutChildId(container, mDragInfo.screen,
mTargetCell[0], mTargetCell[1], mDragInfo.spanX, mDragInfo.spanY));
if (container != LauncherSettings.Favorites.CONTAINER_HOTSEAT &&
cell instanceof LauncherAppWidgetHostView) {
final CellLayout cellLayout = dropTargetLayout;
// We post this call so that the widget has a chance to be placed
// in its final location
final LauncherAppWidgetHostView hostView = (LauncherAppWidgetHostView) cell;
AppWidgetProviderInfo pinfo = hostView.getAppWidgetInfo();
if (pinfo != null &&
pinfo.resizeMode != AppWidgetProviderInfo.RESIZE_NONE) {
final Runnable addResizeFrame = new Runnable() {
public void run() {
DragLayer dragLayer = mLauncher.getDragLayer();
dragLayer.addResizeFrame(info, hostView, cellLayout);
}
};
resizeRunnable = (new Runnable() {
public void run() {
if (!isPageMoving()) {
addResizeFrame.run();
} else {
mDelayedResizeRunnable = addResizeFrame;
}
}
});
}
}
LauncherModel.moveItemInDatabase(mLauncher, info, container, screen, lp.cellX,
lp.cellY);
} else {
// If we can't find a drop location, we return the item to its original position
CellLayout.LayoutParams lp = (CellLayout.LayoutParams) cell.getLayoutParams();
mTargetCell[0] = lp.cellX;
mTargetCell[1] = lp.cellY;
CellLayout layout = (CellLayout) cell.getParent().getParent();
layout.markCellsAsOccupiedForView(cell);
}
}
final CellLayout parent = (CellLayout) cell.getParent().getParent();
final Runnable finalResizeRunnable = resizeRunnable;
// Prepare it to be animated into its new position
// This must be called after the view has been re-parented
final Runnable onCompleteRunnable = new Runnable() {
@Override
public void run() {
mAnimatingViewIntoPlace = false;
updateChildrenLayersEnabled(false);
if (finalResizeRunnable != null) {
finalResizeRunnable.run();
}
}
};
mAnimatingViewIntoPlace = true;
if (d.dragView.hasDrawn()) {
final ItemInfo info = (ItemInfo) cell.getTag();
if (info.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET) {
int animationType = resizeOnDrop ? ANIMATE_INTO_POSITION_AND_RESIZE :
ANIMATE_INTO_POSITION_AND_DISAPPEAR;
animateWidgetDrop(info, parent, d.dragView,
onCompleteRunnable, animationType, cell, false);
} else {
int duration = snapScreen < 0 ? -1 : ADJACENT_SCREEN_DROP_DURATION;
mLauncher.getDragLayer().animateViewIntoPosition(d.dragView, cell, duration,
onCompleteRunnable, this);
}
} else {
d.deferDragViewCleanupPostAnimation = false;
cell.setVisibility(VISIBLE);
}
parent.onDropChild(cell);
}
}
public void setFinalScrollForPageChange(int screen) {
if (screen >= 0) {
mSavedScrollX = getScrollX();
CellLayout cl = (CellLayout) getChildAt(screen);
mSavedTranslationX = cl.getTranslationX();
mSavedRotationY = cl.getRotationY();
final int newX = getChildOffset(screen) - getRelativeChildOffset(screen);
setScrollX(newX);
cl.setTranslationX(0f);
cl.setRotationY(0f);
}
}
public void resetFinalScrollForPageChange(int screen) {
if (screen >= 0) {
CellLayout cl = (CellLayout) getChildAt(screen);
setScrollX(mSavedScrollX);
cl.setTranslationX(mSavedTranslationX);
cl.setRotationY(mSavedRotationY);
}
}
public void getViewLocationRelativeToSelf(View v, int[] location) {
getLocationInWindow(location);
int x = location[0];
int y = location[1];
v.getLocationInWindow(location);
int vX = location[0];
int vY = location[1];
location[0] = vX - x;
location[1] = vY - y;
}
public void onDragEnter(DragObject d) {
mDragEnforcer.onDragEnter();
mCreateUserFolderOnDrop = false;
mAddToExistingFolderOnDrop = false;
mDropToLayout = null;
CellLayout layout = getCurrentDropLayout();
setCurrentDropLayout(layout);
setCurrentDragOverlappingLayout(layout);
// Because we don't have space in the Phone UI (the CellLayouts run to the edge) we
// don't need to show the outlines
if (LauncherApplication.isScreenLarge()) {
showOutlines();
}
}
static Rect getCellLayoutMetrics(Launcher launcher, int orientation) {
Resources res = launcher.getResources();
Display display = launcher.getWindowManager().getDefaultDisplay();
Point smallestSize = new Point();
Point largestSize = new Point();
display.getCurrentSizeRange(smallestSize, largestSize);
if (orientation == CellLayout.LANDSCAPE) {
if (mLandscapeCellLayoutMetrics == null) {
int paddingLeft = res.getDimensionPixelSize(R.dimen.workspace_left_padding_land);
int paddingRight = res.getDimensionPixelSize(R.dimen.workspace_right_padding_land);
int paddingTop = res.getDimensionPixelSize(R.dimen.workspace_top_padding_land);
int paddingBottom = res.getDimensionPixelSize(R.dimen.workspace_bottom_padding_land);
int width = largestSize.x - paddingLeft - paddingRight;
int height = smallestSize.y - paddingTop - paddingBottom;
mLandscapeCellLayoutMetrics = new Rect();
CellLayout.getMetrics(mLandscapeCellLayoutMetrics, res,
width, height, LauncherModel.getCellCountX(), LauncherModel.getCellCountY(),
orientation);
}
return mLandscapeCellLayoutMetrics;
} else if (orientation == CellLayout.PORTRAIT) {
if (mPortraitCellLayoutMetrics == null) {
int paddingLeft = res.getDimensionPixelSize(R.dimen.workspace_left_padding_land);
int paddingRight = res.getDimensionPixelSize(R.dimen.workspace_right_padding_land);
int paddingTop = res.getDimensionPixelSize(R.dimen.workspace_top_padding_land);
int paddingBottom = res.getDimensionPixelSize(R.dimen.workspace_bottom_padding_land);
int width = smallestSize.x - paddingLeft - paddingRight;
int height = largestSize.y - paddingTop - paddingBottom;
mPortraitCellLayoutMetrics = new Rect();
CellLayout.getMetrics(mPortraitCellLayoutMetrics, res,
width, height, LauncherModel.getCellCountX(), LauncherModel.getCellCountY(),
orientation);
}
return mPortraitCellLayoutMetrics;
}
return null;
}
public void onDragExit(DragObject d) {
mDragEnforcer.onDragExit();
// Here we store the final page that will be dropped to, if the workspace in fact
// receives the drop
if (mInScrollArea) {
if (isPageMoving()) {
// If the user drops while the page is scrolling, we should use that page as the
// destination instead of the page that is being hovered over.
mDropToLayout = (CellLayout) getPageAt(getNextPage());
} else {
mDropToLayout = mDragOverlappingLayout;
}
} else {
mDropToLayout = mDragTargetLayout;
}
if (mDragMode == DRAG_MODE_CREATE_FOLDER) {
mCreateUserFolderOnDrop = true;
} else if (mDragMode == DRAG_MODE_ADD_TO_FOLDER) {
mAddToExistingFolderOnDrop = true;
}
// Reset the scroll area and previous drag target
onResetScrollArea();
setCurrentDropLayout(null);
setCurrentDragOverlappingLayout(null);
mSpringLoadedDragController.cancel();
if (!mIsPageMoving) {
hideOutlines();
}
}
void setCurrentDropLayout(CellLayout layout) {
if (mDragTargetLayout != null) {
mDragTargetLayout.revertTempState();
mDragTargetLayout.onDragExit();
}
mDragTargetLayout = layout;
if (mDragTargetLayout != null) {
mDragTargetLayout.onDragEnter();
}
cleanupReorder(true);
cleanupFolderCreation();
setCurrentDropOverCell(-1, -1);
}
void setCurrentDragOverlappingLayout(CellLayout layout) {
if (mDragOverlappingLayout != null) {
mDragOverlappingLayout.setIsDragOverlapping(false);
}
mDragOverlappingLayout = layout;
if (mDragOverlappingLayout != null) {
mDragOverlappingLayout.setIsDragOverlapping(true);
}
invalidate();
}
void setCurrentDropOverCell(int x, int y) {
if (x != mDragOverX || y != mDragOverY) {
mDragOverX = x;
mDragOverY = y;
setDragMode(DRAG_MODE_NONE);
}
}
void setDragMode(int dragMode) {
if (dragMode != mDragMode) {
if (dragMode == DRAG_MODE_NONE) {
cleanupAddToFolder();
// We don't want to cancel the re-order alarm every time the target cell changes
// as this feels to slow / unresponsive.
cleanupReorder(false);
cleanupFolderCreation();
} else if (dragMode == DRAG_MODE_ADD_TO_FOLDER) {
cleanupReorder(true);
cleanupFolderCreation();
} else if (dragMode == DRAG_MODE_CREATE_FOLDER) {
cleanupAddToFolder();
cleanupReorder(true);
} else if (dragMode == DRAG_MODE_REORDER) {
cleanupAddToFolder();
cleanupFolderCreation();
}
mDragMode = dragMode;
}
}
private void cleanupFolderCreation() {
if (mDragFolderRingAnimator != null) {
mDragFolderRingAnimator.animateToNaturalState();
}
mFolderCreationAlarm.cancelAlarm();
}
private void cleanupAddToFolder() {
if (mDragOverFolderIcon != null) {
mDragOverFolderIcon.onDragExit(null);
mDragOverFolderIcon = null;
}
}
private void cleanupReorder(boolean cancelAlarm) {
// Any pending reorders are canceled
if (cancelAlarm) {
mReorderAlarm.cancelAlarm();
}
mLastReorderX = -1;
mLastReorderY = -1;
}
public DropTarget getDropTargetDelegate(DragObject d) {
return null;
}
/*
*
* Convert the 2D coordinate xy from the parent View's coordinate space to this CellLayout's
* coordinate space. The argument xy is modified with the return result.
*
*/
void mapPointFromSelfToChild(View v, float[] xy) {
mapPointFromSelfToChild(v, xy, null);
}
/*
*
* Convert the 2D coordinate xy from the parent View's coordinate space to this CellLayout's
* coordinate space. The argument xy is modified with the return result.
*
* if cachedInverseMatrix is not null, this method will just use that matrix instead of
* computing it itself; we use this to avoid redundant matrix inversions in
* findMatchingPageForDragOver
*
*/
void mapPointFromSelfToChild(View v, float[] xy, Matrix cachedInverseMatrix) {
if (cachedInverseMatrix == null) {
v.getMatrix().invert(mTempInverseMatrix);
cachedInverseMatrix = mTempInverseMatrix;
}
int scrollX = getScrollX();
if (mNextPage != INVALID_PAGE) {
scrollX = mScroller.getFinalX();
}
xy[0] = xy[0] + scrollX - v.getLeft();
xy[1] = xy[1] + getScrollY() - v.getTop();
cachedInverseMatrix.mapPoints(xy);
}
void mapPointFromSelfToHotseatLayout(Hotseat hotseat, float[] xy) {
hotseat.getLayout().getMatrix().invert(mTempInverseMatrix);
xy[0] = xy[0] - hotseat.getLeft() - hotseat.getLayout().getLeft();
xy[1] = xy[1] - hotseat.getTop() - hotseat.getLayout().getTop();
mTempInverseMatrix.mapPoints(xy);
}
/*
*
* Convert the 2D coordinate xy from this CellLayout's coordinate space to
* the parent View's coordinate space. The argument xy is modified with the return result.
*
*/
void mapPointFromChildToSelf(View v, float[] xy) {
v.getMatrix().mapPoints(xy);
int scrollX = getScrollX();
if (mNextPage != INVALID_PAGE) {
scrollX = mScroller.getFinalX();
}
xy[0] -= (scrollX - v.getLeft());
xy[1] -= (getScrollY() - v.getTop());
}
static private float squaredDistance(float[] point1, float[] point2) {
float distanceX = point1[0] - point2[0];
float distanceY = point2[1] - point2[1];
return distanceX * distanceX + distanceY * distanceY;
}
/*
*
* Returns true if the passed CellLayout cl overlaps with dragView
*
*/
boolean overlaps(CellLayout cl, DragView dragView,
int dragViewX, int dragViewY, Matrix cachedInverseMatrix) {
// Transform the coordinates of the item being dragged to the CellLayout's coordinates
final float[] draggedItemTopLeft = mTempDragCoordinates;
draggedItemTopLeft[0] = dragViewX;
draggedItemTopLeft[1] = dragViewY;
final float[] draggedItemBottomRight = mTempDragBottomRightCoordinates;
draggedItemBottomRight[0] = draggedItemTopLeft[0] + dragView.getDragRegionWidth();
draggedItemBottomRight[1] = draggedItemTopLeft[1] + dragView.getDragRegionHeight();
// Transform the dragged item's top left coordinates
// to the CellLayout's local coordinates
mapPointFromSelfToChild(cl, draggedItemTopLeft, cachedInverseMatrix);
float overlapRegionLeft = Math.max(0f, draggedItemTopLeft[0]);
float overlapRegionTop = Math.max(0f, draggedItemTopLeft[1]);
if (overlapRegionLeft <= cl.getWidth() && overlapRegionTop >= 0) {
// Transform the dragged item's bottom right coordinates
// to the CellLayout's local coordinates
mapPointFromSelfToChild(cl, draggedItemBottomRight, cachedInverseMatrix);
float overlapRegionRight = Math.min(cl.getWidth(), draggedItemBottomRight[0]);
float overlapRegionBottom = Math.min(cl.getHeight(), draggedItemBottomRight[1]);
if (overlapRegionRight >= 0 && overlapRegionBottom <= cl.getHeight()) {
float overlap = (overlapRegionRight - overlapRegionLeft) *
(overlapRegionBottom - overlapRegionTop);
if (overlap > 0) {
return true;
}
}
}
return false;
}
/*
*
* This method returns the CellLayout that is currently being dragged to. In order to drag
* to a CellLayout, either the touch point must be directly over the CellLayout, or as a second
* strategy, we see if the dragView is overlapping any CellLayout and choose the closest one
*
* Return null if no CellLayout is currently being dragged over
*
*/
private CellLayout findMatchingPageForDragOver(
DragView dragView, float originX, float originY, boolean exact) {
// We loop through all the screens (ie CellLayouts) and see which ones overlap
// with the item being dragged and then choose the one that's closest to the touch point
final int screenCount = getChildCount();
CellLayout bestMatchingScreen = null;
float smallestDistSoFar = Float.MAX_VALUE;
for (int i = 0; i < screenCount; i++) {
CellLayout cl = (CellLayout) getChildAt(i);
final float[] touchXy = {originX, originY};
// Transform the touch coordinates to the CellLayout's local coordinates
// If the touch point is within the bounds of the cell layout, we can return immediately
cl.getMatrix().invert(mTempInverseMatrix);
mapPointFromSelfToChild(cl, touchXy, mTempInverseMatrix);
if (touchXy[0] >= 0 && touchXy[0] <= cl.getWidth() &&
touchXy[1] >= 0 && touchXy[1] <= cl.getHeight()) {
return cl;
}
if (!exact) {
// Get the center of the cell layout in screen coordinates
final float[] cellLayoutCenter = mTempCellLayoutCenterCoordinates;
cellLayoutCenter[0] = cl.getWidth()/2;
cellLayoutCenter[1] = cl.getHeight()/2;
mapPointFromChildToSelf(cl, cellLayoutCenter);
touchXy[0] = originX;
touchXy[1] = originY;
// Calculate the distance between the center of the CellLayout
// and the touch point
float dist = squaredDistance(touchXy, cellLayoutCenter);
if (dist < smallestDistSoFar) {
smallestDistSoFar = dist;
bestMatchingScreen = cl;
}
}
}
return bestMatchingScreen;
}
// This is used to compute the visual center of the dragView. This point is then
// used to visualize drop locations and determine where to drop an item. The idea is that
// the visual center represents the user's interpretation of where the item is, and hence
// is the appropriate point to use when determining drop location.
private float[] getDragViewVisualCenter(int x, int y, int xOffset, int yOffset,
DragView dragView, float[] recycle) {
float res[];
if (recycle == null) {
res = new float[2];
} else {
res = recycle;
}
// First off, the drag view has been shifted in a way that is not represented in the
// x and y values or the x/yOffsets. Here we account for that shift.
x += getResources().getDimensionPixelSize(R.dimen.dragViewOffsetX);
y += getResources().getDimensionPixelSize(R.dimen.dragViewOffsetY);
// These represent the visual top and left of drag view if a dragRect was provided.
// If a dragRect was not provided, then they correspond to the actual view left and
// top, as the dragRect is in that case taken to be the entire dragView.
// R.dimen.dragViewOffsetY.
int left = x - xOffset;
int top = y - yOffset;
// In order to find the visual center, we shift by half the dragRect
res[0] = left + dragView.getDragRegion().width() / 2;
res[1] = top + dragView.getDragRegion().height() / 2;
return res;
}
private boolean isDragWidget(DragObject d) {
return (d.dragInfo instanceof LauncherAppWidgetInfo ||
d.dragInfo instanceof PendingAddWidgetInfo);
}
private boolean isExternalDragWidget(DragObject d) {
return d.dragSource != this && isDragWidget(d);
}
public void onDragOver(DragObject d) {
// Skip drag over events while we are dragging over side pages
if (mInScrollArea || mIsSwitchingState || mState == State.SMALL) return;
Rect r = new Rect();
CellLayout layout = null;
ItemInfo item = (ItemInfo) d.dragInfo;
// Ensure that we have proper spans for the item that we are dropping
if (item.spanX < 0 || item.spanY < 0) throw new RuntimeException("Improper spans found");
mDragViewVisualCenter = getDragViewVisualCenter(d.x, d.y, d.xOffset, d.yOffset,
d.dragView, mDragViewVisualCenter);
final View child = (mDragInfo == null) ? null : mDragInfo.cell;
// Identify whether we have dragged over a side page
if (isSmall()) {
if (mLauncher.getHotseat() != null && !isExternalDragWidget(d)) {
mLauncher.getHotseat().getHitRect(r);
if (r.contains(d.x, d.y)) {
layout = mLauncher.getHotseat().getLayout();
}
}
if (layout == null) {
layout = findMatchingPageForDragOver(d.dragView, d.x, d.y, false);
}
if (layout != mDragTargetLayout) {
setCurrentDropLayout(layout);
setCurrentDragOverlappingLayout(layout);
boolean isInSpringLoadedMode = (mState == State.SPRING_LOADED);
if (isInSpringLoadedMode) {
if (mLauncher.isHotseatLayout(layout)) {
mSpringLoadedDragController.cancel();
} else {
mSpringLoadedDragController.setAlarm(mDragTargetLayout);
}
}
}
} else {
// Test to see if we are over the hotseat otherwise just use the current page
if (mLauncher.getHotseat() != null && !isDragWidget(d)) {
mLauncher.getHotseat().getHitRect(r);
if (r.contains(d.x, d.y)) {
layout = mLauncher.getHotseat().getLayout();
}
}
if (layout == null) {
layout = getCurrentDropLayout();
}
if (layout != mDragTargetLayout) {
setCurrentDropLayout(layout);
setCurrentDragOverlappingLayout(layout);
}
}
// Handle the drag over
if (mDragTargetLayout != null) {
// We want the point to be mapped to the dragTarget.
if (mLauncher.isHotseatLayout(mDragTargetLayout)) {
mapPointFromSelfToHotseatLayout(mLauncher.getHotseat(), mDragViewVisualCenter);
} else {
mapPointFromSelfToChild(mDragTargetLayout, mDragViewVisualCenter, null);
}
ItemInfo info = (ItemInfo) d.dragInfo;
mTargetCell = findNearestArea((int) mDragViewVisualCenter[0],
(int) mDragViewVisualCenter[1], item.spanX, item.spanY,
mDragTargetLayout, mTargetCell);
setCurrentDropOverCell(mTargetCell[0], mTargetCell[1]);
float targetCellDistance = mDragTargetLayout.getDistanceFromCell(
mDragViewVisualCenter[0], mDragViewVisualCenter[1], mTargetCell);
final View dragOverView = mDragTargetLayout.getChildAt(mTargetCell[0],
mTargetCell[1]);
manageFolderFeedback(info, mDragTargetLayout, mTargetCell,
targetCellDistance, dragOverView);
int minSpanX = item.spanX;
int minSpanY = item.spanY;
if (item.minSpanX > 0 && item.minSpanY > 0) {
minSpanX = item.minSpanX;
minSpanY = item.minSpanY;
}
boolean nearestDropOccupied = mDragTargetLayout.isNearestDropLocationOccupied((int)
mDragViewVisualCenter[0], (int) mDragViewVisualCenter[1], item.spanX,
item.spanY, child, mTargetCell);
if (!nearestDropOccupied) {
mDragTargetLayout.visualizeDropLocation(child, mDragOutline,
(int) mDragViewVisualCenter[0], (int) mDragViewVisualCenter[1],
mTargetCell[0], mTargetCell[1], item.spanX, item.spanY, false,
d.dragView.getDragVisualizeOffset(), d.dragView.getDragRegion());
} else if ((mDragMode == DRAG_MODE_NONE || mDragMode == DRAG_MODE_REORDER)
&& !mReorderAlarm.alarmPending() && (mLastReorderX != mTargetCell[0] ||
mLastReorderY != mTargetCell[1])) {
// Otherwise, if we aren't adding to or creating a folder and there's no pending
// reorder, then we schedule a reorder
ReorderAlarmListener listener = new ReorderAlarmListener(mDragViewVisualCenter,
minSpanX, minSpanY, item.spanX, item.spanY, d.dragView, child);
mReorderAlarm.setOnAlarmListener(listener);
mReorderAlarm.setAlarm(REORDER_TIMEOUT);
}
if (mDragMode == DRAG_MODE_CREATE_FOLDER || mDragMode == DRAG_MODE_ADD_TO_FOLDER ||
!nearestDropOccupied) {
if (mDragTargetLayout != null) {
mDragTargetLayout.revertTempState();
}
}
}
}
private void manageFolderFeedback(ItemInfo info, CellLayout targetLayout,
int[] targetCell, float distance, View dragOverView) {
boolean userFolderPending = willCreateUserFolder(info, targetLayout, targetCell, distance,
false);
if (mDragMode == DRAG_MODE_NONE && userFolderPending &&
!mFolderCreationAlarm.alarmPending()) {
mFolderCreationAlarm.setOnAlarmListener(new
FolderCreationAlarmListener(targetLayout, targetCell[0], targetCell[1]));
mFolderCreationAlarm.setAlarm(FOLDER_CREATION_TIMEOUT);
return;
}
boolean willAddToFolder =
willAddToExistingUserFolder(info, targetLayout, targetCell, distance);
if (willAddToFolder && mDragMode == DRAG_MODE_NONE) {
mDragOverFolderIcon = ((FolderIcon) dragOverView);
mDragOverFolderIcon.onDragEnter(info);
if (targetLayout != null) {
targetLayout.clearDragOutlines();
}
setDragMode(DRAG_MODE_ADD_TO_FOLDER);
return;
}
if (mDragMode == DRAG_MODE_ADD_TO_FOLDER && !willAddToFolder) {
setDragMode(DRAG_MODE_NONE);
}
if (mDragMode == DRAG_MODE_CREATE_FOLDER && !userFolderPending) {
setDragMode(DRAG_MODE_NONE);
}
return;
}
class FolderCreationAlarmListener implements OnAlarmListener {
CellLayout layout;
int cellX;
int cellY;
public FolderCreationAlarmListener(CellLayout layout, int cellX, int cellY) {
this.layout = layout;
this.cellX = cellX;
this.cellY = cellY;
}
public void onAlarm(Alarm alarm) {
if (mDragFolderRingAnimator == null) {
mDragFolderRingAnimator = new FolderRingAnimator(mLauncher, null);
}
mDragFolderRingAnimator.setCell(cellX, cellY);
mDragFolderRingAnimator.setCellLayout(layout);
mDragFolderRingAnimator.animateToAcceptState();
layout.showFolderAccept(mDragFolderRingAnimator);
layout.clearDragOutlines();
setDragMode(DRAG_MODE_CREATE_FOLDER);
}
}
class ReorderAlarmListener implements OnAlarmListener {
float[] dragViewCenter;
int minSpanX, minSpanY, spanX, spanY;
DragView dragView;
View child;
public ReorderAlarmListener(float[] dragViewCenter, int minSpanX, int minSpanY, int spanX,
int spanY, DragView dragView, View child) {
this.dragViewCenter = dragViewCenter;
this.minSpanX = minSpanX;
this.minSpanY = minSpanY;
this.spanX = spanX;
this.spanY = spanY;
this.child = child;
this.dragView = dragView;
}
public void onAlarm(Alarm alarm) {
int[] resultSpan = new int[2];
mTargetCell = findNearestArea((int) mDragViewVisualCenter[0],
(int) mDragViewVisualCenter[1], spanX, spanY, mDragTargetLayout, mTargetCell);
mLastReorderX = mTargetCell[0];
mLastReorderY = mTargetCell[1];
mTargetCell = mDragTargetLayout.createArea((int) mDragViewVisualCenter[0],
(int) mDragViewVisualCenter[1], minSpanX, minSpanY, spanX, spanY,
child, mTargetCell, resultSpan, CellLayout.MODE_DRAG_OVER);
if (mTargetCell[0] < 0 || mTargetCell[1] < 0) {
mDragTargetLayout.revertTempState();
} else {
setDragMode(DRAG_MODE_REORDER);
}
boolean resize = resultSpan[0] != spanX || resultSpan[1] != spanY;
mDragTargetLayout.visualizeDropLocation(child, mDragOutline,
(int) mDragViewVisualCenter[0], (int) mDragViewVisualCenter[1],
mTargetCell[0], mTargetCell[1], resultSpan[0], resultSpan[1], resize,
dragView.getDragVisualizeOffset(), dragView.getDragRegion());
}
}
@Override
public void getHitRect(Rect outRect) {
// We want the workspace to have the whole area of the display (it will find the correct
// cell layout to drop to in the existing drag/drop logic.
outRect.set(0, 0, mDisplaySize.x, mDisplaySize.y);
}
/**
* Add the item specified by dragInfo to the given layout.
* @return true if successful
*/
public boolean addExternalItemToScreen(ItemInfo dragInfo, CellLayout layout) {
if (layout.findCellForSpan(mTempEstimate, dragInfo.spanX, dragInfo.spanY)) {
onDropExternal(dragInfo.dropPos, (ItemInfo) dragInfo, (CellLayout) layout, false);
return true;
}
mLauncher.showOutOfSpaceMessage(mLauncher.isHotseatLayout(layout));
return false;
}
private void onDropExternal(int[] touchXY, Object dragInfo,
CellLayout cellLayout, boolean insertAtFirst) {
onDropExternal(touchXY, dragInfo, cellLayout, insertAtFirst, null);
}
/**
* Drop an item that didn't originate on one of the workspace screens.
* It may have come from Launcher (e.g. from all apps or customize), or it may have
* come from another app altogether.
*
* NOTE: This can also be called when we are outside of a drag event, when we want
* to add an item to one of the workspace screens.
*/
private void onDropExternal(final int[] touchXY, final Object dragInfo,
final CellLayout cellLayout, boolean insertAtFirst, DragObject d) {
final Runnable exitSpringLoadedRunnable = new Runnable() {
@Override
public void run() {
mLauncher.exitSpringLoadedDragModeDelayed(true, false, null);
}
};
ItemInfo info = (ItemInfo) dragInfo;
int spanX = info.spanX;
int spanY = info.spanY;
if (mDragInfo != null) {
spanX = mDragInfo.spanX;
spanY = mDragInfo.spanY;
}
final long container = mLauncher.isHotseatLayout(cellLayout) ?
LauncherSettings.Favorites.CONTAINER_HOTSEAT :
LauncherSettings.Favorites.CONTAINER_DESKTOP;
final int screen = indexOfChild(cellLayout);
if (!mLauncher.isHotseatLayout(cellLayout) && screen != mCurrentPage
&& mState != State.SPRING_LOADED) {
snapToPage(screen);
}
if (info instanceof PendingAddItemInfo) {
final PendingAddItemInfo pendingInfo = (PendingAddItemInfo) dragInfo;
boolean findNearestVacantCell = true;
if (pendingInfo.itemType == LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT) {
mTargetCell = findNearestArea((int) touchXY[0], (int) touchXY[1], spanX, spanY,
cellLayout, mTargetCell);
float distance = cellLayout.getDistanceFromCell(mDragViewVisualCenter[0],
mDragViewVisualCenter[1], mTargetCell);
if (willCreateUserFolder((ItemInfo) d.dragInfo, cellLayout, mTargetCell,
distance, true) || willAddToExistingUserFolder((ItemInfo) d.dragInfo,
cellLayout, mTargetCell, distance)) {
findNearestVacantCell = false;
}
}
final ItemInfo item = (ItemInfo) d.dragInfo;
boolean updateWidgetSize = false;
if (findNearestVacantCell) {
int minSpanX = item.spanX;
int minSpanY = item.spanY;
if (item.minSpanX > 0 && item.minSpanY > 0) {
minSpanX = item.minSpanX;
minSpanY = item.minSpanY;
}
int[] resultSpan = new int[2];
mTargetCell = cellLayout.createArea((int) mDragViewVisualCenter[0],
(int) mDragViewVisualCenter[1], minSpanX, minSpanY, info.spanX, info.spanY,
null, mTargetCell, resultSpan, CellLayout.MODE_ON_DROP_EXTERNAL);
if (resultSpan[0] != item.spanX || resultSpan[1] != item.spanY) {
updateWidgetSize = true;
}
item.spanX = resultSpan[0];
item.spanY = resultSpan[1];
}
Runnable onAnimationCompleteRunnable = new Runnable() {
@Override
public void run() {
// When dragging and dropping from customization tray, we deal with creating
// widgets/shortcuts/folders in a slightly different way
switch (pendingInfo.itemType) {
case LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET:
int span[] = new int[2];
span[0] = item.spanX;
span[1] = item.spanY;
mLauncher.addAppWidgetFromDrop((PendingAddWidgetInfo) pendingInfo,
container, screen, mTargetCell, span, null);
break;
case LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT:
mLauncher.processShortcutFromDrop(pendingInfo.componentName,
container, screen, mTargetCell, null);
break;
default:
throw new IllegalStateException("Unknown item type: " +
pendingInfo.itemType);
}
}
};
View finalView = pendingInfo.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET
? ((PendingAddWidgetInfo) pendingInfo).boundWidget : null;
if (finalView instanceof AppWidgetHostView && updateWidgetSize) {
AppWidgetHostView awhv = (AppWidgetHostView) finalView;
AppWidgetResizeFrame.updateWidgetSizeRanges(awhv, mLauncher, item.spanX,
item.spanY);
}
int animationStyle = ANIMATE_INTO_POSITION_AND_DISAPPEAR;
if (pendingInfo.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET &&
((PendingAddWidgetInfo) pendingInfo).info.configure != null) {
animationStyle = ANIMATE_INTO_POSITION_AND_REMAIN;
}
animateWidgetDrop(info, cellLayout, d.dragView, onAnimationCompleteRunnable,
animationStyle, finalView, true);
} else {
// This is for other drag/drop cases, like dragging from All Apps
View view = null;
switch (info.itemType) {
case LauncherSettings.Favorites.ITEM_TYPE_APPLICATION:
case LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT:
if (info.container == NO_ID && info instanceof ApplicationInfo) {
// Came from all apps -- make a copy
info = new ShortcutInfo((ApplicationInfo) info);
}
view = mLauncher.createShortcut(R.layout.application, cellLayout,
(ShortcutInfo) info);
break;
case LauncherSettings.Favorites.ITEM_TYPE_FOLDER:
view = FolderIcon.fromXml(R.layout.folder_icon, mLauncher, cellLayout,
(FolderInfo) info, mIconCache);
break;
default:
throw new IllegalStateException("Unknown item type: " + info.itemType);
}
// First we find the cell nearest to point at which the item is
// dropped, without any consideration to whether there is an item there.
if (touchXY != null) {
mTargetCell = findNearestArea((int) touchXY[0], (int) touchXY[1], spanX, spanY,
cellLayout, mTargetCell);
float distance = cellLayout.getDistanceFromCell(mDragViewVisualCenter[0],
mDragViewVisualCenter[1], mTargetCell);
d.postAnimationRunnable = exitSpringLoadedRunnable;
if (createUserFolderIfNecessary(view, container, cellLayout, mTargetCell, distance,
true, d.dragView, d.postAnimationRunnable)) {
return;
}
if (addToExistingFolderIfNecessary(view, cellLayout, mTargetCell, distance, d,
true)) {
return;
}
}
if (touchXY != null) {
// when dragging and dropping, just find the closest free spot
mTargetCell = cellLayout.createArea((int) mDragViewVisualCenter[0],
(int) mDragViewVisualCenter[1], 1, 1, 1, 1,
null, mTargetCell, null, CellLayout.MODE_ON_DROP_EXTERNAL);
} else {
cellLayout.findCellForSpan(mTargetCell, 1, 1);
}
addInScreen(view, container, screen, mTargetCell[0], mTargetCell[1], info.spanX,
info.spanY, insertAtFirst);
cellLayout.onDropChild(view);
CellLayout.LayoutParams lp = (CellLayout.LayoutParams) view.getLayoutParams();
cellLayout.getShortcutsAndWidgets().measureChild(view);
LauncherModel.addOrMoveItemInDatabase(mLauncher, info, container, screen,
lp.cellX, lp.cellY);
if (d.dragView != null) {
// We wrap the animation call in the temporary set and reset of the current
// cellLayout to its final transform -- this means we animate the drag view to
// the correct final location.
setFinalTransitionTransform(cellLayout);
mLauncher.getDragLayer().animateViewIntoPosition(d.dragView, view,
exitSpringLoadedRunnable);
resetTransitionTransform(cellLayout);
}
}
}
public Bitmap createWidgetBitmap(ItemInfo widgetInfo, View layout) {
int[] unScaledSize = mLauncher.getWorkspace().estimateItemSize(widgetInfo.spanX,
widgetInfo.spanY, widgetInfo, false);
int visibility = layout.getVisibility();
layout.setVisibility(VISIBLE);
int width = MeasureSpec.makeMeasureSpec(unScaledSize[0], MeasureSpec.EXACTLY);
int height = MeasureSpec.makeMeasureSpec(unScaledSize[1], MeasureSpec.EXACTLY);
Bitmap b = Bitmap.createBitmap(unScaledSize[0], unScaledSize[1],
Bitmap.Config.ARGB_8888);
Canvas c = new Canvas(b);
layout.measure(width, height);
layout.layout(0, 0, unScaledSize[0], unScaledSize[1]);
layout.draw(c);
c.setBitmap(null);
layout.setVisibility(visibility);
return b;
}
private void getFinalPositionForDropAnimation(int[] loc, float[] scaleXY,
DragView dragView, CellLayout layout, ItemInfo info, int[] targetCell,
boolean external, boolean scale) {
// Now we animate the dragView, (ie. the widget or shortcut preview) into its final
// location and size on the home screen.
int spanX = info.spanX;
int spanY = info.spanY;
Rect r = estimateItemPosition(layout, info, targetCell[0], targetCell[1], spanX, spanY);
loc[0] = r.left;
loc[1] = r.top;
setFinalTransitionTransform(layout);
float cellLayoutScale =
mLauncher.getDragLayer().getDescendantCoordRelativeToSelf(layout, loc);
resetTransitionTransform(layout);
float dragViewScaleX;
float dragViewScaleY;
if (scale) {
dragViewScaleX = (1.0f * r.width()) / dragView.getMeasuredWidth();
dragViewScaleY = (1.0f * r.height()) / dragView.getMeasuredHeight();
} else {
dragViewScaleX = 1f;
dragViewScaleY = 1f;
}
// The animation will scale the dragView about its center, so we need to center about
// the final location.
loc[0] -= (dragView.getMeasuredWidth() - cellLayoutScale * r.width()) / 2;
loc[1] -= (dragView.getMeasuredHeight() - cellLayoutScale * r.height()) / 2;
scaleXY[0] = dragViewScaleX * cellLayoutScale;
scaleXY[1] = dragViewScaleY * cellLayoutScale;
}
public void animateWidgetDrop(ItemInfo info, CellLayout cellLayout, DragView dragView,
final Runnable onCompleteRunnable, int animationType, final View finalView,
boolean external) {
Rect from = new Rect();
mLauncher.getDragLayer().getViewRectRelativeToSelf(dragView, from);
int[] finalPos = new int[2];
float scaleXY[] = new float[2];
boolean scalePreview = !(info instanceof PendingAddShortcutInfo);
getFinalPositionForDropAnimation(finalPos, scaleXY, dragView, cellLayout, info, mTargetCell,
external, scalePreview);
Resources res = mLauncher.getResources();
int duration = res.getInteger(R.integer.config_dropAnimMaxDuration) - 200;
// In the case where we've prebound the widget, we remove it from the DragLayer
if (finalView instanceof AppWidgetHostView && external) {
Log.d(TAG, "6557954 Animate widget drop, final view is appWidgetHostView");
mLauncher.getDragLayer().removeView(finalView);
}
if ((animationType == ANIMATE_INTO_POSITION_AND_RESIZE || external) && finalView != null) {
Bitmap crossFadeBitmap = createWidgetBitmap(info, finalView);
dragView.setCrossFadeBitmap(crossFadeBitmap);
dragView.crossFade((int) (duration * 0.8f));
} else if (info.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET && external) {
scaleXY[0] = scaleXY[1] = Math.min(scaleXY[0], scaleXY[1]);
}
DragLayer dragLayer = mLauncher.getDragLayer();
if (animationType == CANCEL_TWO_STAGE_WIDGET_DROP_ANIMATION) {
mLauncher.getDragLayer().animateViewIntoPosition(dragView, finalPos, 0f, 0.1f, 0.1f,
DragLayer.ANIMATION_END_DISAPPEAR, onCompleteRunnable, duration);
} else {
int endStyle;
if (animationType == ANIMATE_INTO_POSITION_AND_REMAIN) {
endStyle = DragLayer.ANIMATION_END_REMAIN_VISIBLE;
} else {
endStyle = DragLayer.ANIMATION_END_DISAPPEAR;;
}
Runnable onComplete = new Runnable() {
@Override
public void run() {
if (finalView != null) {
finalView.setVisibility(VISIBLE);
}
if (onCompleteRunnable != null) {
onCompleteRunnable.run();
}
}
};
dragLayer.animateViewIntoPosition(dragView, from.left, from.top, finalPos[0],
finalPos[1], 1, 1, 1, scaleXY[0], scaleXY[1], onComplete, endStyle,
duration, this);
}
}
public void setFinalTransitionTransform(CellLayout layout) {
if (isSwitchingState()) {
int index = indexOfChild(layout);
mCurrentScaleX = layout.getScaleX();
mCurrentScaleY = layout.getScaleY();
mCurrentTranslationX = layout.getTranslationX();
mCurrentTranslationY = layout.getTranslationY();
mCurrentRotationY = layout.getRotationY();
layout.setScaleX(mNewScaleXs[index]);
layout.setScaleY(mNewScaleYs[index]);
layout.setTranslationX(mNewTranslationXs[index]);
layout.setTranslationY(mNewTranslationYs[index]);
layout.setRotationY(mNewRotationYs[index]);
}
}
public void resetTransitionTransform(CellLayout layout) {
if (isSwitchingState()) {
mCurrentScaleX = layout.getScaleX();
mCurrentScaleY = layout.getScaleY();
mCurrentTranslationX = layout.getTranslationX();
mCurrentTranslationY = layout.getTranslationY();
mCurrentRotationY = layout.getRotationY();
layout.setScaleX(mCurrentScaleX);
layout.setScaleY(mCurrentScaleY);
layout.setTranslationX(mCurrentTranslationX);
layout.setTranslationY(mCurrentTranslationY);
layout.setRotationY(mCurrentRotationY);
}
}
/**
* Return the current {@link CellLayout}, correctly picking the destination
* screen while a scroll is in progress.
*/
public CellLayout getCurrentDropLayout() {
return (CellLayout) getChildAt(getNextPage());
}
/**
* Return the current CellInfo describing our current drag; this method exists
* so that Launcher can sync this object with the correct info when the activity is created/
* destroyed
*
*/
public CellLayout.CellInfo getDragInfo() {
return mDragInfo;
}
/**
* Calculate the nearest cell where the given object would be dropped.
*
* pixelX and pixelY should be in the coordinate system of layout
*/
private int[] findNearestArea(int pixelX, int pixelY,
int spanX, int spanY, CellLayout layout, int[] recycle) {
return layout.findNearestArea(
pixelX, pixelY, spanX, spanY, recycle);
}
void setup(Launcher launcher, DragController dragController) {
mSpringLoadedDragController = new SpringLoadedDragController(mLauncher);
mDragController = dragController;
// hardware layers on children are enabled on startup, but should be disabled until
// needed
updateChildrenLayersEnabled(false);
setWallpaperDimension();
mLayoutBottom = (LinearLayout) launcher.findViewById(R.id.workspace_botton_moons);
setCurPage(getCurrentPage());
}
/**
* Called at the end of a drag which originated on the workspace.
*/
public void onDropCompleted(View target, DragObject d, boolean isFlingToDelete,
boolean success) {
if (success) {
if (target != this) {
if (mDragInfo != null) {
getParentCellLayoutForView(mDragInfo.cell).removeView(mDragInfo.cell);
if (mDragInfo.cell instanceof DropTarget) {
mDragController.removeDropTarget((DropTarget) mDragInfo.cell);
}
}
}
} else if (mDragInfo != null) {
CellLayout cellLayout;
if (mLauncher.isHotseatLayout(target)) {
cellLayout = mLauncher.getHotseat().getLayout();
} else {
cellLayout = (CellLayout) getChildAt(mDragInfo.screen);
}
cellLayout.onDropChild(mDragInfo.cell);
}
if (d.cancelled && mDragInfo.cell != null) {
mDragInfo.cell.setVisibility(VISIBLE);
}
mDragOutline = null;
mDragInfo = null;
// Hide the scrolling indicator after you pick up an item
hideScrollingIndicator(false);
}
void updateItemLocationsInDatabase(CellLayout cl) {
int count = cl.getShortcutsAndWidgets().getChildCount();
int screen = indexOfChild(cl);
int container = Favorites.CONTAINER_DESKTOP;
if (mLauncher.isHotseatLayout(cl)) {
screen = -1;
container = Favorites.CONTAINER_HOTSEAT;
}
for (int i = 0; i < count; i++) {
View v = cl.getShortcutsAndWidgets().getChildAt(i);
ItemInfo info = (ItemInfo) v.getTag();
// Null check required as the AllApps button doesn't have an item info
if (info != null && info.requiresDbUpdate) {
info.requiresDbUpdate = false;
LauncherModel.modifyItemInDatabase(mLauncher, info, container, screen, info.cellX,
info.cellY, info.spanX, info.spanY);
}
}
}
@Override
public boolean supportsFlingToDelete() {
return true;
}
@Override
public void onFlingToDelete(DragObject d, int x, int y, PointF vec) {
// Do nothing
}
@Override
public void onFlingToDeleteCompleted() {
// Do nothing
}
public boolean isDropEnabled() {
return true;
}
@Override
protected void onRestoreInstanceState(Parcelable state) {
super.onRestoreInstanceState(state);
Launcher.setScreen(mCurrentPage);
}
@Override
protected void dispatchRestoreInstanceState(SparseArray<Parcelable> container) {
// We don't dispatch restoreInstanceState to our children using this code path.
// Some pages will be restored immediately as their items are bound immediately, and
// others we will need to wait until after their items are bound.
mSavedStates = container;
}
public void restoreInstanceStateForChild(int child) {
if (mSavedStates != null) {
mRestoredPages.add(child);
CellLayout cl = (CellLayout) getChildAt(child);
cl.restoreInstanceState(mSavedStates);
}
}
public void restoreInstanceStateForRemainingPages() {
int count = getChildCount();
for (int i = 0; i < count; i++) {
if (!mRestoredPages.contains(i)) {
restoreInstanceStateForChild(i);
}
}
mRestoredPages.clear();
}
@Override
public void scrollLeft() {
if (!isSmall() && !mIsSwitchingState) {
super.scrollLeft();
}
Folder openFolder = getOpenFolder();
if (openFolder != null) {
openFolder.completeDragExit();
}
}
@Override
public void scrollRight() {
if (!isSmall() && !mIsSwitchingState) {
super.scrollRight();
}
Folder openFolder = getOpenFolder();
if (openFolder != null) {
openFolder.completeDragExit();
}
}
@Override
public boolean onEnterScrollArea(int x, int y, int direction) {
// Ignore the scroll area if we are dragging over the hot seat
boolean isPortrait = !LauncherApplication.isScreenLandscape(getContext());
if (mLauncher.getHotseat() != null && isPortrait) {
Rect r = new Rect();
mLauncher.getHotseat().getHitRect(r);
if (r.contains(x, y)) {
return false;
}
}
boolean result = false;
if (!isSmall() && !mIsSwitchingState) {
mInScrollArea = true;
final int page = getNextPage() +
(direction == DragController.SCROLL_LEFT ? -1 : 1);
// We always want to exit the current layout to ensure parity of enter / exit
setCurrentDropLayout(null);
if (0 <= page && page < getChildCount()) {
CellLayout layout = (CellLayout) getChildAt(page);
setCurrentDragOverlappingLayout(layout);
// Workspace is responsible for drawing the edge glow on adjacent pages,
// so we need to redraw the workspace when this may have changed.
invalidate();
result = true;
}
}
return result;
}
@Override
public boolean onExitScrollArea() {
boolean result = false;
if (mInScrollArea) {
invalidate();
CellLayout layout = getCurrentDropLayout();
setCurrentDropLayout(layout);
setCurrentDragOverlappingLayout(layout);
result = true;
mInScrollArea = false;
}
return result;
}
private void onResetScrollArea() {
setCurrentDragOverlappingLayout(null);
mInScrollArea = false;
}
/**
* Returns a specific CellLayout
*/
CellLayout getParentCellLayoutForView(View v) {
ArrayList<CellLayout> layouts = getWorkspaceAndHotseatCellLayouts();
for (CellLayout layout : layouts) {
if (layout.getShortcutsAndWidgets().indexOfChild(v) > -1) {
return layout;
}
}
return null;
}
/**
* Returns a list of all the CellLayouts in the workspace.
*/
ArrayList<CellLayout> getWorkspaceAndHotseatCellLayouts() {
ArrayList<CellLayout> layouts = new ArrayList<CellLayout>();
int screenCount = getChildCount();
for (int screen = 0; screen < screenCount; screen++) {
layouts.add(((CellLayout) getChildAt(screen)));
}
if (mLauncher.getHotseat() != null) {
layouts.add(mLauncher.getHotseat().getLayout());
}
return layouts;
}
/**
* We should only use this to search for specific children. Do not use this method to modify
* ShortcutsAndWidgetsContainer directly. Includes ShortcutAndWidgetContainers from
* the hotseat and workspace pages
*/
ArrayList<ShortcutAndWidgetContainer> getAllShortcutAndWidgetContainers() {
ArrayList<ShortcutAndWidgetContainer> childrenLayouts =
new ArrayList<ShortcutAndWidgetContainer>();
int screenCount = getChildCount();
for (int screen = 0; screen < screenCount; screen++) {
childrenLayouts.add(((CellLayout) getChildAt(screen)).getShortcutsAndWidgets());
}
if (mLauncher.getHotseat() != null) {
childrenLayouts.add(mLauncher.getHotseat().getLayout().getShortcutsAndWidgets());
}
return childrenLayouts;
}
public Folder getFolderForTag(Object tag) {
ArrayList<ShortcutAndWidgetContainer> childrenLayouts =
getAllShortcutAndWidgetContainers();
for (ShortcutAndWidgetContainer layout: childrenLayouts) {
int count = layout.getChildCount();
for (int i = 0; i < count; i++) {
View child = layout.getChildAt(i);
if (child instanceof Folder) {
Folder f = (Folder) child;
if (f.getInfo() == tag && f.getInfo().opened) {
return f;
}
}
}
}
return null;
}
public View getViewForTag(Object tag) {
ArrayList<ShortcutAndWidgetContainer> childrenLayouts =
getAllShortcutAndWidgetContainers();
for (ShortcutAndWidgetContainer layout: childrenLayouts) {
int count = layout.getChildCount();
for (int i = 0; i < count; i++) {
View child = layout.getChildAt(i);
if (child.getTag() == tag) {
return child;
}
}
}
return null;
}
void clearDropTargets() {
ArrayList<ShortcutAndWidgetContainer> childrenLayouts =
getAllShortcutAndWidgetContainers();
for (ShortcutAndWidgetContainer layout: childrenLayouts) {
int childCount = layout.getChildCount();
for (int j = 0; j < childCount; j++) {
View v = layout.getChildAt(j);
if (v instanceof DropTarget) {
mDragController.removeDropTarget((DropTarget) v);
}
}
}
}
void removeItems(final ArrayList<String> packages) {
final HashSet<String> packageNames = new HashSet<String>();
packageNames.addAll(packages);
ArrayList<CellLayout> cellLayouts = getWorkspaceAndHotseatCellLayouts();
for (final CellLayout layoutParent: cellLayouts) {
final ViewGroup layout = layoutParent.getShortcutsAndWidgets();
// Avoid ANRs by treating each screen separately
post(new Runnable() {
public void run() {
final ArrayList<View> childrenToRemove = new ArrayList<View>();
childrenToRemove.clear();
int childCount = layout.getChildCount();
for (int j = 0; j < childCount; j++) {
final View view = layout.getChildAt(j);
Object tag = view.getTag();
if (tag instanceof ShortcutInfo) {
final ShortcutInfo info = (ShortcutInfo) tag;
final Intent intent = info.intent;
final ComponentName name = intent.getComponent();
if (name != null) {
if (packageNames.contains(name.getPackageName())) {
LauncherModel.deleteItemFromDatabase(mLauncher, info);
childrenToRemove.add(view);
}
}
} else if (tag instanceof FolderInfo) {
final FolderInfo info = (FolderInfo) tag;
final ArrayList<ShortcutInfo> contents = info.contents;
final int contentsCount = contents.size();
final ArrayList<ShortcutInfo> appsToRemoveFromFolder =
new ArrayList<ShortcutInfo>();
for (int k = 0; k < contentsCount; k++) {
final ShortcutInfo appInfo = contents.get(k);
final Intent intent = appInfo.intent;
final ComponentName name = intent.getComponent();
if (name != null) {
if (packageNames.contains(name.getPackageName())) {
appsToRemoveFromFolder.add(appInfo);
}
}
}
for (ShortcutInfo item: appsToRemoveFromFolder) {
info.remove(item);
LauncherModel.deleteItemFromDatabase(mLauncher, item);
}
} else if (tag instanceof LauncherAppWidgetInfo) {
final LauncherAppWidgetInfo info = (LauncherAppWidgetInfo) tag;
final ComponentName provider = info.providerName;
if (provider != null) {
if (packageNames.contains(provider.getPackageName())) {
LauncherModel.deleteItemFromDatabase(mLauncher, info);
childrenToRemove.add(view);
}
}
}
}
childCount = childrenToRemove.size();
for (int j = 0; j < childCount; j++) {
View child = childrenToRemove.get(j);
// Note: We can not remove the view directly from CellLayoutChildren as this
// does not re-mark the spaces as unoccupied.
layoutParent.removeViewInLayout(child);
if (child instanceof DropTarget) {
mDragController.removeDropTarget((DropTarget)child);
}
}
if (childCount > 0) {
layout.requestLayout();
layout.invalidate();
}
}
});
}
// Clean up new-apps animation list
final Context context = getContext();
post(new Runnable() {
@Override
public void run() {
String spKey = LauncherApplication.getSharedPreferencesKey();
SharedPreferences sp = context.getSharedPreferences(spKey,
Context.MODE_PRIVATE);
Set<String> newApps = sp.getStringSet(InstallShortcutReceiver.NEW_APPS_LIST_KEY,
null);
// Remove all queued items that match the same package
if (newApps != null) {
synchronized (newApps) {
Iterator<String> iter = newApps.iterator();
while (iter.hasNext()) {
try {
Intent intent = Intent.parseUri(iter.next(), 0);
String pn = ItemInfo.getPackageName(intent);
if (packageNames.contains(pn)) {
iter.remove();
}
// It is possible that we've queued an item to be loaded, yet it has
// not been added to the workspace, so remove those items as well.
ArrayList<ItemInfo> shortcuts;
shortcuts = LauncherModel.getWorkspaceShortcutItemInfosWithIntent(
intent);
for (ItemInfo info : shortcuts) {
LauncherModel.deleteItemFromDatabase(context, info);
}
} catch (URISyntaxException e) {}
}
}
}
}
});
}
void updateShortcuts(ArrayList<ApplicationInfo> apps) {
ArrayList<ShortcutAndWidgetContainer> childrenLayouts = getAllShortcutAndWidgetContainers();
for (ShortcutAndWidgetContainer layout: childrenLayouts) {
int childCount = layout.getChildCount();
for (int j = 0; j < childCount; j++) {
final View view = layout.getChildAt(j);
Object tag = view.getTag();
if (tag instanceof ShortcutInfo) {
ShortcutInfo info = (ShortcutInfo) tag;
// We need to check for ACTION_MAIN otherwise getComponent() might
// return null for some shortcuts (for instance, for shortcuts to
// web pages.)
final Intent intent = info.intent;
final ComponentName name = intent.getComponent();
if (info.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPLICATION &&
Intent.ACTION_MAIN.equals(intent.getAction()) && name != null) {
final int appCount = apps.size();
for (int k = 0; k < appCount; k++) {
ApplicationInfo app = apps.get(k);
if (app.componentName.equals(name)) {
BubbleTextView shortcut = (BubbleTextView) view;
info.updateIcon(mIconCache);
info.title = app.title.toString();
shortcut.applyFromShortcutInfo(info, mIconCache);
}
}
}
}
}
}
}
void moveToDefaultScreen(boolean animate) {
if (!isSmall()) {
if (animate) {
snapToPage(mDefaultPage);
} else {
setCurrentPage(mDefaultPage);
}
}
getChildAt(mDefaultPage).requestFocus();
}
@Override
public void syncPages() {
}
@Override
public void syncPageItems(int page, boolean immediate) {
}
@Override
protected String getCurrentPageDescription() {
int page = (mNextPage != INVALID_PAGE) ? mNextPage : mCurrentPage;
return String.format(getContext().getString(R.string.workspace_scroll_format),
page + 1, getChildCount());
}
public void getLocationInDragLayer(int[] loc) {
mLauncher.getDragLayer().getLocationInDragLayer(this, loc);
}
void setFadeForOverScroll(float fade) {
if (!isScrollingIndicatorEnabled()) return;
mOverscrollFade = fade;
float reducedFade = 0.5f + 0.5f * (1 - fade);
final ViewGroup parent = (ViewGroup) getParent();
final ImageView qsbDivider = (ImageView) (parent.findViewById(R.id.qsb_divider));
final ImageView dockDivider = (ImageView) (parent.findViewById(R.id.dock_divider));
final View scrollIndicator = getScrollingIndicator();
cancelScrollingIndicatorAnimations();
if (qsbDivider != null) qsbDivider.setAlpha(reducedFade);
if (dockDivider != null) dockDivider.setAlpha(reducedFade);
scrollIndicator.setAlpha(1 - fade);
}
@Override
protected void changePageByGesture() {
mLauncher.showAllApps(true);
}
/**
* BEGIN: mcoy add for workspace preview
* we set default page from workspace preview, after we click the home iamge
* @param i
*/
public void setDefaultHomePage(int i) {
mDefaultPage = i;
}
public int getDefaultHomePage() {
return mDefaultPage;
}
/** END */
}