| /* |
| * 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.launcher2; |
| |
| import com.android.launcher.R; |
| import com.android.launcher2.InstallWidgetReceiver.WidgetMimeTypeHandlerData; |
| |
| import android.animation.Animator; |
| import android.animation.AnimatorListenerAdapter; |
| import android.animation.AnimatorSet; |
| import android.animation.ObjectAnimator; |
| import android.animation.PropertyValuesHolder; |
| import android.animation.TimeInterpolator; |
| import android.animation.ValueAnimator; |
| import android.animation.Animator.AnimatorListener; |
| import android.animation.ValueAnimator.AnimatorUpdateListener; |
| import android.app.AlertDialog; |
| import android.app.WallpaperManager; |
| import android.appwidget.AppWidgetManager; |
| import android.appwidget.AppWidgetProviderInfo; |
| import android.content.ClipData; |
| import android.content.ClipDescription; |
| import android.content.ComponentName; |
| import android.content.Context; |
| import android.content.Intent; |
| import android.content.pm.PackageManager; |
| import android.content.pm.ProviderInfo; |
| import android.content.res.Resources; |
| import android.content.res.TypedArray; |
| import android.graphics.Bitmap; |
| import android.graphics.Camera; |
| import android.graphics.Canvas; |
| import android.graphics.Matrix; |
| import android.graphics.Paint; |
| import android.graphics.Rect; |
| import android.graphics.RectF; |
| import android.graphics.Region.Op; |
| import android.graphics.drawable.Drawable; |
| import android.net.Uri; |
| import android.os.IBinder; |
| import android.os.Parcelable; |
| import android.util.AttributeSet; |
| import android.util.Log; |
| import android.util.Pair; |
| import android.view.Display; |
| import android.view.DragEvent; |
| import android.view.MotionEvent; |
| import android.view.View; |
| import android.view.ViewGroup; |
| import android.view.animation.DecelerateInterpolator; |
| import android.widget.TextView; |
| import android.widget.Toast; |
| |
| import java.util.ArrayList; |
| import java.util.HashSet; |
| import java.util.List; |
| |
| /** |
| * 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 { |
| @SuppressWarnings({"UnusedDeclaration"}) |
| private static final String TAG = "Launcher.Workspace"; |
| |
| // This is how much the workspace shrinks when we enter all apps or |
| // customization mode |
| private static final float SHRINK_FACTOR = 0.16f; |
| |
| // How much the screens shrink when we enter spring loaded drag mode |
| private static final float SPRING_LOADED_DRAG_SHRINK_FACTOR = 0.7f; |
| |
| // Y rotation to apply to the workspace screens |
| private static final float WORKSPACE_ROTATION = 12.5f; |
| |
| // These are extra scale factors to apply to the mini home screens |
| // so as to achieve the desired transform |
| private static final float EXTRA_SCALE_FACTOR_0 = 0.972f; |
| private static final float EXTRA_SCALE_FACTOR_1 = 1.0f; |
| private static final float EXTRA_SCALE_FACTOR_2 = 1.10f; |
| |
| 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 BACKGROUND_FADE_IN_DURATION = 350; |
| |
| // 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 ObjectAnimator mBackgroundFadeInAnimation; |
| private ObjectAnimator mBackgroundFadeOutAnimation; |
| private Drawable mBackground; |
| private Drawable mCustomizeTrayBackground; |
| private boolean mDrawCustomizeTrayBackground; |
| private float mBackgroundAlpha = 0; |
| private float mOverScrollMaxBackgroundAlpha = 0.0f; |
| private int mOverScrollPageIndex = -1; |
| |
| private View mCustomizationDrawer; |
| private View mCustomizationDrawerContent; |
| private int[] mCustomizationDrawerPos = new int[2]; |
| private float[] mCustomizationDrawerTransformedPos = new float[2]; |
| |
| private final WallpaperManager mWallpaperManager; |
| |
| private int mDefaultPage; |
| |
| private boolean mIsDragInProcess = false; |
| |
| /** |
| * CellInfo for the cell that is currently being dragged |
| */ |
| private CellLayout.CellInfo mDragInfo; |
| |
| /** |
| * Target drop area calculated during last acceptDrop call. |
| */ |
| private int[] mTargetCell = null; |
| |
| /** |
| * The CellLayout that is currently being dragged over |
| */ |
| private CellLayout mDragTargetLayout = 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[] mTempOriginXY = new float[2]; |
| private float[] mTempDragCoordinates = new float[2]; |
| private float[] mTempTouchCoordinates = new float[2]; |
| private float[] mTempCellLayoutCenterCoordinates = new float[2]; |
| private float[] mTempDragBottomRightCoordinates = new float[2]; |
| private Matrix mTempInverseMatrix = new Matrix(); |
| |
| private SpringLoadedDragController mSpringLoadedDragController; |
| |
| private static final int DEFAULT_CELL_COUNT_X = 4; |
| private static final int DEFAULT_CELL_COUNT_Y = 4; |
| |
| private Drawable mPreviousIndicator; |
| private Drawable mNextIndicator; |
| |
| // State variable that indicates whether the pages are small (ie when you're |
| // in all apps or customize mode) |
| private boolean mIsSmall = false; |
| private boolean mIsInUnshrinkAnimation = false; |
| private AnimatorListener mShrinkAnimationListener; |
| private AnimatorListener mUnshrinkAnimationListener; |
| enum ShrinkState { TOP, SPRING_LOADED, MIDDLE, BOTTOM_HIDDEN, BOTTOM_VISIBLE }; |
| private ShrinkState mShrinkState; |
| private boolean mWasSpringLoadedOnDragExit = false; |
| private boolean mWaitingToShrink = false; |
| private ShrinkState mWaitingToShrinkState; |
| private AnimatorSet mAnimator; |
| |
| /** Is the user is dragging an item near the edge of a page? */ |
| private boolean mInScrollArea = false; |
| |
| /** If mInScrollArea is true, the direction of the scroll. */ |
| private int mPendingScrollDirection = DragController.SCROLL_NONE; |
| |
| private final HolographicOutlineHelper mOutlineHelper = new HolographicOutlineHelper(); |
| private Bitmap mDragOutline = null; |
| private final Rect mTempRect = new Rect(); |
| private final int[] mTempXY = new int[2]; |
| |
| private ValueAnimator mDropAnim = null; |
| private TimeInterpolator mQuintEaseOutInterpolator = new DecelerateInterpolator(2.5f); |
| private View mDropView = null; |
| private int[] mDropViewPos = new int[] { -1, -1 }; |
| |
| // Paint used to draw external drop outline |
| private final Paint mExternalDragOutlinePaint = new Paint(); |
| |
| // Camera and Matrix used to determine the final position of a neighboring CellLayout |
| private final Matrix mMatrix = new Matrix(); |
| private final Camera mCamera = new Camera(); |
| private final float mTempFloat2[] = new float[2]; |
| |
| enum WallpaperVerticalOffset { TOP, MIDDLE, BOTTOM }; |
| int mWallpaperWidth; |
| int mWallpaperHeight; |
| WallpaperOffsetInterpolator mWallpaperOffset; |
| boolean mUpdateWallpaperOffsetImmediately = false; |
| boolean mSyncWallpaperOffsetWithScroll = true; |
| |
| // info about the last drag |
| private DragView mLastDragView; |
| private int mLastDragOriginX; |
| private int mLastDragOriginY; |
| private int mLastDragXOffset; |
| private int mLastDragYOffset; |
| |
| /** |
| * 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; |
| |
| if (!LauncherApplication.isScreenXLarge()) { |
| mFadeInAdjacentScreens = false; |
| } |
| |
| mWallpaperManager = WallpaperManager.getInstance(context); |
| |
| TypedArray a = context.obtainStyledAttributes(attrs, |
| R.styleable.Workspace, defStyle, 0); |
| int cellCountX = a.getInt(R.styleable.Workspace_cellCountX, DEFAULT_CELL_COUNT_X); |
| int cellCountY = a.getInt(R.styleable.Workspace_cellCountY, DEFAULT_CELL_COUNT_Y); |
| mDefaultPage = a.getInt(R.styleable.Workspace_defaultScreen, 1); |
| a.recycle(); |
| |
| LauncherModel.updateWorkspaceLayoutCells(cellCountX, cellCountY); |
| setHapticFeedbackEnabled(false); |
| |
| initWorkspace(); |
| } |
| |
| /** |
| * 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(); |
| mExternalDragOutlinePaint.setAntiAlias(true); |
| setWillNotDraw(false); |
| |
| try { |
| final Resources res = getResources(); |
| mBackground = res.getDrawable(R.drawable.all_apps_bg_gradient); |
| mCustomizeTrayBackground = res.getDrawable(R.drawable.customize_bg_gradient); |
| } catch (Resources.NotFoundException e) { |
| // In this case, we will skip drawing background protection |
| } |
| |
| mUnshrinkAnimationListener = new AnimatorListenerAdapter() { |
| @Override |
| public void onAnimationStart(Animator animation) { |
| mIsInUnshrinkAnimation = true; |
| disableCacheUpdates(); |
| } |
| |
| @Override |
| public void onAnimationEnd(Animator animation) { |
| mIsInUnshrinkAnimation = false; |
| mSyncWallpaperOffsetWithScroll = true; |
| if (mShrinkState == ShrinkState.SPRING_LOADED) { |
| View layout = null; |
| if (mLastDragView != null) { |
| layout = findMatchingPageForDragOver(mLastDragView, mLastDragOriginX, |
| mLastDragOriginY, mLastDragXOffset, mLastDragYOffset); |
| } |
| mSpringLoadedDragController.onEnterSpringLoadedMode(layout == null); |
| } else { |
| mDrawCustomizeTrayBackground = false; |
| } |
| mWallpaperOffset.setOverrideHorizontalCatchupConstant(false); |
| enableCacheUpdates(); |
| mAnimator = null; |
| } |
| }; |
| mShrinkAnimationListener = new AnimatorListenerAdapter() { |
| @Override |
| public void onAnimationStart(Animator animation) { |
| disableCacheUpdates(); |
| } |
| @Override |
| public void onAnimationEnd(Animator animation) { |
| mWallpaperOffset.setOverrideHorizontalCatchupConstant(false); |
| enableCacheUpdates(); |
| mAnimator = null; |
| } |
| }; |
| mSnapVelocity = 600; |
| mWallpaperOffset = new WallpaperOffsetInterpolator(); |
| } |
| |
| @Override |
| protected int getScrollMode() { |
| if (LauncherApplication.isScreenXLarge()) { |
| return SmoothPagedView.X_LARGE_MODE; |
| } else { |
| return SmoothPagedView.DEFAULT_MODE; |
| } |
| } |
| |
| @Override |
| public void addView(View child, int index, LayoutParams params) { |
| if (!(child instanceof CellLayout)) { |
| throw new IllegalArgumentException("A Workspace can only have CellLayout children."); |
| } |
| ((CellLayout) child).setOnInterceptTouchListener(this); |
| super.addView(child, index, params); |
| } |
| |
| @Override |
| public void addView(View child) { |
| if (!(child instanceof CellLayout)) { |
| throw new IllegalArgumentException("A Workspace can only have CellLayout children."); |
| } |
| ((CellLayout) child).setOnInterceptTouchListener(this); |
| super.addView(child); |
| } |
| |
| @Override |
| public void addView(View child, int index) { |
| if (!(child instanceof CellLayout)) { |
| throw new IllegalArgumentException("A Workspace can only have CellLayout children."); |
| } |
| ((CellLayout) child).setOnInterceptTouchListener(this); |
| super.addView(child, index); |
| } |
| |
| @Override |
| public void addView(View child, int width, int height) { |
| if (!(child instanceof CellLayout)) { |
| throw new IllegalArgumentException("A Workspace can only have CellLayout children."); |
| } |
| ((CellLayout) child).setOnInterceptTouchListener(this); |
| super.addView(child, width, height); |
| } |
| |
| @Override |
| public void addView(View child, LayoutParams params) { |
| if (!(child instanceof CellLayout)) { |
| throw new IllegalArgumentException("A Workspace can only have CellLayout children."); |
| } |
| ((CellLayout) child).setOnInterceptTouchListener(this); |
| super.addView(child, params); |
| } |
| |
| /** |
| * @return The open folder on the current screen, or null if there is none |
| */ |
| Folder getOpenFolder() { |
| ViewGroup currentPage = ((CellLayout) getChildAt(mCurrentPage)).getChildrenLayout(); |
| int count = currentPage.getChildCount(); |
| for (int i = 0; i < count; i++) { |
| View child = currentPage.getChildAt(i); |
| if (child instanceof Folder) { |
| Folder folder = (Folder) child; |
| if (folder.getInfo().opened) |
| return folder; |
| } |
| } |
| return null; |
| } |
| |
| ArrayList<Folder> getOpenFolders() { |
| final int screenCount = getChildCount(); |
| ArrayList<Folder> folders = new ArrayList<Folder>(screenCount); |
| |
| for (int screen = 0; screen < screenCount; screen++) { |
| ViewGroup currentPage = ((CellLayout) getChildAt(screen)).getChildrenLayout(); |
| int count = currentPage.getChildCount(); |
| for (int i = 0; i < count; i++) { |
| View child = currentPage.getChildAt(i); |
| if (child instanceof Folder) { |
| Folder folder = (Folder) child; |
| if (folder.getInfo().opened) |
| folders.add(folder); |
| break; |
| } |
| } |
| } |
| return folders; |
| } |
| |
| boolean isDefaultPageShowing() { |
| return mCurrentPage == mDefaultPage; |
| } |
| |
| /** |
| * 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, int screen, int x, int y, int spanX, int spanY) { |
| addInScreen(child, screen, x, y, spanX, spanY, false); |
| } |
| |
| void addInFullScreen(View child, int screen) { |
| addInScreen(child, screen, 0, 0, -1, -1); |
| } |
| |
| /** |
| * 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, int screen, int x, int y, int spanX, int spanY, boolean insert) { |
| if (screen < 0 || screen >= getChildCount()) { |
| Log.e(TAG, "The screen must be >= 0 and < " + getChildCount() |
| + " (was " + screen + "); skipping child"); |
| return; |
| } |
| |
| final CellLayout group = (CellLayout) getChildAt(screen); |
| CellLayout.LayoutParams lp = (CellLayout.LayoutParams) child.getLayoutParams(); |
| if (lp == null) { |
| lp = new CellLayout.LayoutParams(x, y, spanX, spanY); |
| } else { |
| lp.cellX = x; |
| lp.cellY = y; |
| lp.cellHSpan = spanX; |
| lp.cellVSpan = spanY; |
| } |
| |
| // Get the canonical child id to uniquely represent this view in this screen |
| int childId = LauncherModel.getCellLayoutChildId(-1, screen, x, y, spanX, spanY); |
| boolean markCellsAsOccupied = !(child instanceof Folder); |
| if (!group.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; |
| return 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; |
| return hitsPage(current + 1, x, y); |
| } |
| |
| public boolean onTouch(View v, MotionEvent event) { |
| // this is an intercepted event being forwarded from a cell layout |
| if (mIsSmall || mIsInUnshrinkAnimation) { |
| // Only allow clicks on a CellLayout if it is visible |
| if (mShrinkState != ShrinkState.BOTTOM_HIDDEN) { |
| mLauncher.onWorkspaceClick((CellLayout) v); |
| } |
| return true; |
| } |
| return false; |
| } |
| |
| protected void onWindowVisibilityChanged (int visibility) { |
| mLauncher.onWindowVisibilityChanged(visibility); |
| } |
| |
| @Override |
| public boolean dispatchUnhandledMove(View focused, int direction) { |
| if (mIsSmall || mIsInUnshrinkAnimation) { |
| // when the home screens are shrunken, shouldn't allow side-scrolling |
| return false; |
| } |
| return super.dispatchUnhandledMove(focused, direction); |
| } |
| |
| @Override |
| public boolean onInterceptTouchEvent(MotionEvent ev) { |
| if (mIsSmall || mIsInUnshrinkAnimation) { |
| if (mLauncher.isAllAppsVisible() && |
| mShrinkState == ShrinkState.BOTTOM_HIDDEN) { |
| // Intercept this event so we can show the workspace in full view |
| // when it is clicked on and it is small |
| AllAppsPagedView allApps = (AllAppsPagedView) |
| mLauncher.findViewById(R.id.all_apps_paged_view); |
| if (allApps != null) { |
| allApps.onInterceptTouchEvent(ev); |
| } |
| return true; |
| } |
| return false; |
| } |
| return super.onInterceptTouchEvent(ev); |
| } |
| |
| @Override |
| protected void determineScrollingStart(MotionEvent ev) { |
| if (!mIsSmall && !mIsInUnshrinkAnimation) super.determineScrollingStart(ev); |
| } |
| |
| protected void onPageBeginMoving() { |
| 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); |
| } |
| showOutlines(); |
| } |
| |
| protected void onPageEndMoving() { |
| clearChildrenCache(); |
| // Hide the outlines, as long as we're not dragging |
| if (!mDragController.dragging()) { |
| hideOutlines(); |
| } |
| mOverScrollMaxBackgroundAlpha = 0.0f; |
| mOverScrollPageIndex = -1; |
| } |
| |
| @Override |
| protected void notifyPageSwitchListener() { |
| super.notifyPageSwitchListener(); |
| |
| if (mPreviousIndicator != null) { |
| // if we know the next page, we show the indication for it right away; it looks |
| // weird if the indicators are lagging |
| int page = mNextPage; |
| if (page == INVALID_PAGE) { |
| page = mCurrentPage; |
| } |
| mPreviousIndicator.setLevel(page); |
| mNextIndicator.setLevel(page); |
| } |
| Launcher.setScreen(mCurrentPage); |
| }; |
| |
| // As a ratio of screen height, the total distance we want the parallax effect to span |
| // vertically |
| private float wallpaperTravelToScreenHeightRatio(int width, int height) { |
| return 1.1f; |
| } |
| |
| // 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() { |
| Display display = mLauncher.getWindowManager().getDefaultDisplay(); |
| final int maxDim = Math.max(display.getWidth(), display.getHeight()); |
| final int minDim = Math.min(display.getWidth(), display.getHeight()); |
| |
| // We need to ensure that there is enough extra space in the wallpaper for the intended |
| // parallax effects |
| mWallpaperWidth = (int) (maxDim * wallpaperTravelToScreenWidthRatio(maxDim, minDim)); |
| mWallpaperHeight = (int)(maxDim * wallpaperTravelToScreenHeightRatio(maxDim, minDim)); |
| mWallpaperManager.suggestDesiredDimensions(mWallpaperWidth, mWallpaperHeight); |
| } |
| |
| public void setVerticalWallpaperOffset(float offset) { |
| mWallpaperOffset.setFinalY(offset); |
| } |
| public float getVerticalWallpaperOffset() { |
| return mWallpaperOffset.getCurrY(); |
| } |
| public void setHorizontalWallpaperOffset(float offset) { |
| mWallpaperOffset.setFinalX(offset); |
| } |
| public float getHorizontalWallpaperOffset() { |
| return mWallpaperOffset.getCurrX(); |
| } |
| |
| private float wallpaperOffsetForCurrentScroll() { |
| Display display = mLauncher.getWindowManager().getDefaultDisplay(); |
| // The wallpaper travel width is how far, from left to right, the wallpaper will move |
| // at this orientation (for example, 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 = (int) (display.getWidth() * |
| wallpaperTravelToScreenWidthRatio(display.getWidth(), display.getHeight())); |
| |
| // Set wallpaper offset steps (1 / (number of screens - 1)) |
| // We have 3 vertical offset states (centered, and then top/bottom aligned |
| // for all apps/customize) |
| mWallpaperManager.setWallpaperOffsetSteps(1.0f / (getChildCount() - 1), 1.0f / (3 - 1)); |
| |
| int scrollRange = getScrollRange(); |
| float scrollProgressOffset = 0; |
| |
| // Account for overscroll: you only see the absolute edge of the wallpaper if |
| // you overscroll as far as you can in landscape mode. Only do this for static wallpapers |
| // because live wallpapers (and probably 3rd party wallpaper providers) rely on the offset |
| // being even intervals from 0 to 1 (eg [0, 0.25, 0.5, 0.75, 1]) |
| final boolean isStaticWallpaper = (mWallpaperManager.getWallpaperInfo() == null); |
| if (isStaticWallpaper) { |
| int overscrollOffset = (int) (maxOverScroll() * display.getWidth()); |
| scrollProgressOffset += overscrollOffset / (float) getScrollRange(); |
| scrollRange += 2 * overscrollOffset; |
| } |
| |
| float scrollProgress = |
| mScrollX / (float) scrollRange + scrollProgressOffset; |
| float offsetInDips = wallpaperTravelWidth * scrollProgress + |
| (mWallpaperWidth - wallpaperTravelWidth) / 2; |
| float offset = offsetInDips / (float) mWallpaperWidth; |
| return offset; |
| } |
| private void syncWallpaperOffsetWithScroll() { |
| if (LauncherApplication.isScreenXLarge()) { |
| 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) { |
| IBinder token = getWindowToken(); |
| if (token != null) { |
| mWallpaperManager.setWallpaperOffsets(getWindowToken(), |
| mWallpaperOffset.getCurrX(), mWallpaperOffset.getCurrY()); |
| } |
| } |
| if (keepUpdating) { |
| invalidate(); |
| } |
| } |
| |
| 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; |
| } |
| Display display = mLauncher.getWindowManager().getDefaultDisplay(); |
| boolean isLandscape = display.getWidth() > display.getHeight(); |
| |
| 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; |
| if (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(); |
| if (mSyncWallpaperOffsetWithScroll) { |
| syncWallpaperOffsetWithScroll(); |
| } |
| } |
| |
| public void showOutlines() { |
| if (!mIsSmall && !mIsInUnshrinkAnimation) { |
| if (mChildrenOutlineFadeOutAnimation != null) mChildrenOutlineFadeOutAnimation.cancel(); |
| if (mChildrenOutlineFadeInAnimation != null) mChildrenOutlineFadeInAnimation.cancel(); |
| mChildrenOutlineFadeInAnimation = ObjectAnimator.ofFloat(this, "childrenOutlineAlpha", 1.0f); |
| mChildrenOutlineFadeInAnimation.setDuration(CHILDREN_OUTLINE_FADE_IN_DURATION); |
| mChildrenOutlineFadeInAnimation.start(); |
| } |
| } |
| |
| public void hideOutlines() { |
| if (!mIsSmall && !mIsInUnshrinkAnimation) { |
| if (mChildrenOutlineFadeInAnimation != null) mChildrenOutlineFadeInAnimation.cancel(); |
| if (mChildrenOutlineFadeOutAnimation != null) mChildrenOutlineFadeOutAnimation.cancel(); |
| mChildrenOutlineFadeOutAnimation = ObjectAnimator.ofFloat(this, "childrenOutlineAlpha", 0.0f); |
| mChildrenOutlineFadeOutAnimation.setDuration(CHILDREN_OUTLINE_FADE_OUT_DURATION); |
| mChildrenOutlineFadeOutAnimation.setStartDelay(CHILDREN_OUTLINE_FADE_OUT_DELAY); |
| mChildrenOutlineFadeOutAnimation.start(); |
| } |
| } |
| |
| 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; |
| } |
| |
| private void showBackgroundGradientForAllApps() { |
| showBackgroundGradient(); |
| mDrawCustomizeTrayBackground = false; |
| } |
| |
| private void showBackgroundGradientForCustomizeTray() { |
| showBackgroundGradient(); |
| mDrawCustomizeTrayBackground = true; |
| } |
| |
| private void showBackgroundGradient() { |
| if (mBackground == null) return; |
| if (mBackgroundFadeOutAnimation != null) mBackgroundFadeOutAnimation.cancel(); |
| if (mBackgroundFadeInAnimation != null) mBackgroundFadeInAnimation.cancel(); |
| mBackgroundFadeInAnimation = ObjectAnimator.ofFloat(this, "backgroundAlpha", 1.0f); |
| mBackgroundFadeInAnimation.setInterpolator(new DecelerateInterpolator(1.5f)); |
| mBackgroundFadeInAnimation.setDuration(BACKGROUND_FADE_IN_DURATION); |
| mBackgroundFadeInAnimation.start(); |
| } |
| |
| private void hideBackgroundGradient() { |
| if (mBackground == null) return; |
| if (mBackgroundFadeInAnimation != null) mBackgroundFadeInAnimation.cancel(); |
| if (mBackgroundFadeOutAnimation != null) mBackgroundFadeOutAnimation.cancel(); |
| mBackgroundFadeOutAnimation = ObjectAnimator.ofFloat(this, "backgroundAlpha", 0.0f); |
| mBackgroundFadeOutAnimation.setInterpolator(new DecelerateInterpolator(1.5f)); |
| mBackgroundFadeOutAnimation.setDuration(BACKGROUND_FADE_OUT_DURATION); |
| mBackgroundFadeOutAnimation.start(); |
| } |
| |
| public void setBackgroundAlpha(float alpha) { |
| mBackgroundAlpha = alpha; |
| invalidate(); |
| } |
| |
| public float getBackgroundAlpha() { |
| return mBackgroundAlpha; |
| } |
| |
| /** |
| * Due to 3D transformations, if two CellLayouts are theoretically touching each other, |
| * on the xy plane, when one is rotated along the y-axis, the gap between them is perceived |
| * as being larger. This method computes what offset the rotated view should be translated |
| * in order to minimize this perceived gap. |
| * @param degrees Angle of the view |
| * @param width Width of the view |
| * @param height Height of the view |
| * @return Offset to be used in a View.setTranslationX() call |
| */ |
| private float getOffsetXForRotation(float degrees, int width, int height) { |
| mMatrix.reset(); |
| mCamera.save(); |
| mCamera.rotateY(Math.abs(degrees)); |
| mCamera.getMatrix(mMatrix); |
| mCamera.restore(); |
| |
| mMatrix.preTranslate(-width * 0.5f, -height * 0.5f); |
| mMatrix.postTranslate(width * 0.5f, height * 0.5f); |
| mTempFloat2[0] = width; |
| mTempFloat2[1] = height; |
| mMatrix.mapPoints(mTempFloat2); |
| return (width - mTempFloat2[0]) * (degrees > 0.0f ? 1.0f : -1.0f); |
| } |
| |
| 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); |
| } |
| |
| @Override |
| protected void screenScrolled(int screenCenter) { |
| final int halfScreenSize = getMeasuredWidth() / 2; |
| |
| for (int i = 0; i < getChildCount(); i++) { |
| CellLayout cl = (CellLayout) getChildAt(i); |
| if (cl != null) { |
| int totalDistance = getScaledMeasuredWidth(cl) + mPageSpacing; |
| int delta = screenCenter - (getChildOffset(i) - |
| getRelativeChildOffset(i) + halfScreenSize); |
| |
| float scrollProgress = delta / (totalDistance * 1.0f); |
| scrollProgress = Math.min(scrollProgress, 1.0f); |
| scrollProgress = Math.max(scrollProgress, -1.0f); |
| |
| // If the current page (i) is being overscrolled, we use a different |
| // set of rules for setting the background alpha multiplier. |
| if ((mScrollX < 0 && i == 0) || (mScrollX > mMaxScrollX && |
| i == getChildCount() -1 )) { |
| cl.setBackgroundAlphaMultiplier( |
| overScrollBackgroundAlphaInterpolator(Math.abs(scrollProgress))); |
| mOverScrollPageIndex = i; |
| } else if (mOverScrollPageIndex != i) { |
| cl.setBackgroundAlphaMultiplier( |
| backgroundAlphaInterpolator(Math.abs(scrollProgress))); |
| } |
| |
| float rotation = WORKSPACE_ROTATION * scrollProgress; |
| float translationX = getOffsetXForRotation(rotation, cl.getWidth(), cl.getHeight()); |
| cl.setTranslationX(translationX); |
| |
| cl.setRotationY(rotation); |
| } |
| } |
| } |
| |
| protected void onAttachedToWindow() { |
| super.onAttachedToWindow(); |
| computeScroll(); |
| mDragController.setWindowToken(getWindowToken()); |
| } |
| |
| @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); |
| |
| // if shrinkToBottom() is called on initialization, it has to be deferred |
| // until after the first call to onLayout so that it has the correct width |
| if (mWaitingToShrink) { |
| // shrink can trigger a synchronous onLayout call, so we |
| // post this to avoid a stack overflow / tangled onLayout calls |
| post(new Runnable() { |
| public void run() { |
| shrink(mWaitingToShrinkState, false); |
| mWaitingToShrink = false; |
| } |
| }); |
| } |
| |
| if (LauncherApplication.isInPlaceRotationEnabled()) { |
| // When the device is rotated, the scroll position of the current screen |
| // needs to be refreshed |
| setCurrentPage(getCurrentPage()); |
| } |
| } |
| |
| public void enableCacheUpdates() { |
| final int pageCount = getChildCount(); |
| for (int i = 0; i < pageCount; i++) { |
| final CellLayout page = (CellLayout) getChildAt(i); |
| page.enableCacheUpdates(); |
| } |
| } |
| |
| public void disableCacheUpdates() { |
| final int pageCount = getChildCount(); |
| for (int i = 0; i < pageCount; i++) { |
| final CellLayout page = (CellLayout) getChildAt(i); |
| page.disableCacheUpdates(); |
| } |
| } |
| |
| @Override |
| protected void onDraw(Canvas canvas) { |
| updateWallpaperOffsets(); |
| |
| // Draw the background gradient if necessary |
| if (mBackground != null && mBackgroundAlpha > 0.0f) { |
| int alpha = (int) (mBackgroundAlpha * 255); |
| if (mDrawCustomizeTrayBackground) { |
| // Find out where to offset the gradient for the customization tray content |
| mCustomizationDrawer.getLocationOnScreen(mCustomizationDrawerPos); |
| final Matrix m = mCustomizationDrawer.getMatrix(); |
| mCustomizationDrawerTransformedPos[0] = 0.0f; |
| mCustomizationDrawerTransformedPos[1] = mCustomizationDrawerContent.getTop(); |
| m.mapPoints(mCustomizationDrawerTransformedPos); |
| |
| // Draw the bg glow behind the gradient |
| mCustomizeTrayBackground.setAlpha(alpha); |
| mCustomizeTrayBackground.setBounds(mScrollX, 0, mScrollX + getMeasuredWidth(), |
| getMeasuredHeight()); |
| mCustomizeTrayBackground.draw(canvas); |
| |
| // Draw the bg gradient |
| final int offset = (int) (mCustomizationDrawerPos[1] + |
| mCustomizationDrawerTransformedPos[1]); |
| mBackground.setAlpha(alpha); |
| mBackground.setBounds(mScrollX, offset, mScrollX + getMeasuredWidth(), |
| offset + getMeasuredHeight()); |
| mBackground.draw(canvas); |
| } else { |
| mBackground.setAlpha(alpha); |
| mBackground.setBounds(mScrollX, 0, mScrollX + getMeasuredWidth(), |
| getMeasuredHeight()); |
| mBackground.draw(canvas); |
| } |
| } |
| super.onDraw(canvas); |
| } |
| |
| @Override |
| protected void dispatchDraw(Canvas canvas) { |
| if (mIsSmall || mIsInUnshrinkAnimation) { |
| // Draw all the workspaces if we're small |
| final int pageCount = getChildCount(); |
| final long drawingTime = getDrawingTime(); |
| for (int i = 0; i < pageCount; i++) { |
| final View page = (View) getChildAt(i); |
| |
| drawChild(canvas, page, drawingTime); |
| } |
| } else { |
| super.dispatchDraw(canvas); |
| |
| final int width = getWidth(); |
| final int height = getHeight(); |
| |
| // In portrait orientation, draw the glowing edge when dragging to adjacent screens |
| if (mInScrollArea && (height > width)) { |
| final int pageHeight = getChildAt(0).getHeight(); |
| |
| // This determines the height of the glowing edge: 90% of the page height |
| final int padding = (int) ((height - pageHeight) * 0.5f + pageHeight * 0.1f); |
| |
| final CellLayout leftPage = (CellLayout) getChildAt(mCurrentPage - 1); |
| final CellLayout rightPage = (CellLayout) getChildAt(mCurrentPage + 1); |
| |
| if (leftPage != null && leftPage.getIsDragOverlapping()) { |
| final Drawable d = getResources().getDrawable(R.drawable.page_hover_left); |
| d.setBounds(mScrollX, padding, mScrollX + d.getIntrinsicWidth(), height - padding); |
| d.draw(canvas); |
| } else if (rightPage != null && rightPage.getIsDragOverlapping()) { |
| final Drawable d = getResources().getDrawable(R.drawable.page_hover_right); |
| d.setBounds(mScrollX + width - d.getIntrinsicWidth(), padding, mScrollX + width, height - padding); |
| d.draw(canvas); |
| } |
| } |
| |
| if (mDropView != null) { |
| // We are animating an item that was just dropped on the home screen. |
| // Render its View in the current animation position. |
| canvas.save(Canvas.MATRIX_SAVE_FLAG); |
| final int xPos = mDropViewPos[0] - mDropView.getScrollX(); |
| final int yPos = mDropViewPos[1] - mDropView.getScrollY(); |
| canvas.translate(xPos, yPos); |
| mDropView.draw(canvas); |
| canvas.restore(); |
| } |
| } |
| } |
| |
| @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 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); |
| } |
| } |
| } |
| |
| @Override |
| public boolean dispatchTouchEvent(MotionEvent ev) { |
| if (ev.getAction() == MotionEvent.ACTION_DOWN) { |
| // (In XLarge mode, the workspace is shrunken below all apps, and responds to taps |
| // ie when you click on a mini-screen, it zooms back to that screen) |
| if (!LauncherApplication.isScreenXLarge() && mLauncher.isAllAppsVisible()) { |
| return false; |
| } |
| } |
| |
| return super.dispatchTouchEvent(ev); |
| } |
| |
| 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); |
| } |
| } |
| |
| @Override |
| public boolean onTouchEvent(MotionEvent ev) { |
| AllAppsPagedView allApps = (AllAppsPagedView) |
| mLauncher.findViewById(R.id.all_apps_paged_view); |
| |
| if (mLauncher.isAllAppsVisible() && mShrinkState == ShrinkState.BOTTOM_HIDDEN |
| && allApps != null) { |
| if (ev.getAction() == MotionEvent.ACTION_UP && |
| allApps.getTouchState() == TOUCH_STATE_REST) { |
| |
| // Cancel any scrolling that is in progress. |
| if (!mScroller.isFinished()) { |
| mScroller.abortAnimation(); |
| } |
| setCurrentPage(mCurrentPage); |
| |
| if (mShrinkState == ShrinkState.BOTTOM_HIDDEN) { |
| mLauncher.showWorkspace(true); |
| } |
| allApps.onTouchEvent(ev); |
| return true; |
| } else { |
| return allApps.onTouchEvent(ev); |
| } |
| } |
| return super.onTouchEvent(ev); |
| } |
| |
| @Override |
| 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); |
| } |
| |
| public boolean isSmall() { |
| return mIsSmall; |
| } |
| |
| private float getYScaleForScreen(int screen) { |
| int x = Math.abs(screen - 2); |
| |
| // TODO: This should be generalized for use with arbitrary rotation angles. |
| switch(x) { |
| case 0: return EXTRA_SCALE_FACTOR_0; |
| case 1: return EXTRA_SCALE_FACTOR_1; |
| case 2: return EXTRA_SCALE_FACTOR_2; |
| } |
| return 1.0f; |
| } |
| |
| public void shrink(ShrinkState shrinkState) { |
| shrink(shrinkState, true); |
| } |
| |
| // we use this to shrink the workspace for the all apps view and the customize view |
| public void shrink(ShrinkState shrinkState, boolean animated) { |
| if (mFirstLayout) { |
| // (mFirstLayout == "first layout has not happened yet") |
| // if we get a call to shrink() as part of our initialization (for example, if |
| // Launcher is started in All Apps mode) then we need to wait for a layout call |
| // to get our width so we can layout the mini-screen views correctly |
| mWaitingToShrink = true; |
| mWaitingToShrinkState = shrinkState; |
| return; |
| } |
| // Stop any scrolling, move to the current page right away |
| setCurrentPage((mNextPage != INVALID_PAGE) ? mNextPage : mCurrentPage); |
| if (!mIsDragInProcess) { |
| updateWhichPagesAcceptDrops(shrinkState); |
| } |
| |
| CellLayout currentPage = (CellLayout) getChildAt(mCurrentPage); |
| if (currentPage == null) { |
| Log.w(TAG, "currentPage is NULL! mCurrentPage " + mCurrentPage |
| + " mNextPage " + mNextPage); |
| return; |
| } |
| if (currentPage.getBackgroundAlphaMultiplier() < 1.0f) { |
| currentPage.setBackgroundAlpha(0.0f); |
| } |
| currentPage.setBackgroundAlphaMultiplier(1.0f); |
| |
| mIsSmall = true; |
| mShrinkState = shrinkState; |
| |
| // we intercept and reject all touch events when we're small, so be sure to reset the state |
| mTouchState = TOUCH_STATE_REST; |
| mActivePointerId = INVALID_POINTER; |
| |
| final Resources res = getResources(); |
| final int screenWidth = getWidth(); |
| final int screenHeight = getHeight(); |
| |
| // Making the assumption that all pages have the same width as the 0th |
| final int pageWidth = getChildAt(0).getMeasuredWidth(); |
| final int pageHeight = getChildAt(0).getMeasuredHeight(); |
| |
| final int scaledPageWidth = (int) (SHRINK_FACTOR * pageWidth); |
| final int scaledPageHeight = (int) (SHRINK_FACTOR * pageHeight); |
| final float extraScaledSpacing = res.getDimension(R.dimen.smallScreenExtraSpacing); |
| |
| final int screenCount = getChildCount(); |
| float totalWidth = screenCount * scaledPageWidth + (screenCount - 1) * extraScaledSpacing; |
| |
| boolean isPortrait = getMeasuredHeight() > getMeasuredWidth(); |
| float newY = (isPortrait ? |
| getResources().getDimension(R.dimen.allAppsSmallScreenVerticalMarginPortrait) : |
| getResources().getDimension(R.dimen.allAppsSmallScreenVerticalMarginLandscape)); |
| float finalAlpha = 1.0f; |
| float extraShrinkFactor = 1.0f; |
| |
| if (shrinkState == ShrinkState.BOTTOM_VISIBLE) { |
| newY = screenHeight - newY - scaledPageHeight; |
| } else if (shrinkState == ShrinkState.BOTTOM_HIDDEN) { |
| // We shrink and disappear to nothing in the case of all apps |
| // (which is when we shrink to the bottom) |
| newY = screenHeight - newY - scaledPageHeight; |
| finalAlpha = 0.0f; |
| } else if (shrinkState == ShrinkState.MIDDLE) { |
| newY = screenHeight / 2 - scaledPageHeight / 2; |
| finalAlpha = 1.0f; |
| } else if (shrinkState == ShrinkState.TOP) { |
| newY = (isPortrait ? |
| getResources().getDimension(R.dimen.customizeSmallScreenVerticalMarginPortrait) : |
| getResources().getDimension(R.dimen.customizeSmallScreenVerticalMarginLandscape)); |
| } |
| |
| int duration; |
| if (shrinkState == ShrinkState.BOTTOM_HIDDEN || shrinkState == ShrinkState.BOTTOM_VISIBLE) { |
| duration = res.getInteger(R.integer.config_allAppsWorkspaceShrinkTime); |
| } else { |
| duration = res.getInteger(R.integer.config_customizeWorkspaceShrinkTime); |
| } |
| |
| // We animate all the screens to the centered position in workspace |
| // At the same time, the screens become greyed/dimmed |
| |
| // newX is initialized to the left-most position of the centered screens |
| float newX = mScroller.getFinalX() + screenWidth / 2 - totalWidth / 2; |
| |
| // We are going to scale about the center of the view, so we need to adjust the positions |
| // of the views accordingly |
| newX -= (pageWidth - scaledPageWidth) / 2.0f; |
| newY -= (pageHeight - scaledPageHeight) / 2.0f; |
| |
| if (mAnimator != null) { |
| mAnimator.cancel(); |
| } |
| |
| mAnimator = new AnimatorSet(); |
| for (int i = 0; i < screenCount; i++) { |
| final CellLayout cl = (CellLayout) getChildAt(i); |
| |
| float rotation = (-i + 2) * WORKSPACE_ROTATION; |
| float rotationScaleX = (float) (1.0f / Math.cos(Math.PI * rotation / 180.0f)); |
| float rotationScaleY = getYScaleForScreen(i); |
| |
| if (animated) { |
| ObjectAnimator animWithInterpolator = ObjectAnimator.ofPropertyValuesHolder(cl, |
| PropertyValuesHolder.ofFloat("x", newX), |
| PropertyValuesHolder.ofFloat("y", newY), |
| PropertyValuesHolder.ofFloat("scaleX", |
| SHRINK_FACTOR * rotationScaleX * extraShrinkFactor), |
| PropertyValuesHolder.ofFloat("scaleY", |
| SHRINK_FACTOR * rotationScaleY * extraShrinkFactor), |
| PropertyValuesHolder.ofFloat("backgroundAlpha", finalAlpha), |
| PropertyValuesHolder.ofFloat("alpha", finalAlpha), |
| PropertyValuesHolder.ofFloat("rotationY", rotation)); |
| |
| animWithInterpolator.setDuration(duration); |
| animWithInterpolator.setInterpolator(mZoomOutInterpolator); |
| mAnimator.playTogether(animWithInterpolator); |
| } else { |
| cl.setX((int)newX); |
| cl.setY((int)newY); |
| cl.setScaleX(SHRINK_FACTOR * rotationScaleX * extraShrinkFactor); |
| cl.setScaleY(SHRINK_FACTOR * rotationScaleY * extraShrinkFactor); |
| cl.setBackgroundAlpha(finalAlpha); |
| cl.setAlpha(finalAlpha); |
| cl.setRotationY(rotation); |
| mShrinkAnimationListener.onAnimationEnd(null); |
| } |
| // increment newX for the next screen |
| newX += scaledPageWidth + extraScaledSpacing; |
| } |
| |
| float wallpaperOffset = 0.5f; |
| Display display = mLauncher.getWindowManager().getDefaultDisplay(); |
| int wallpaperTravelHeight = (int) (display.getHeight() * |
| wallpaperTravelToScreenHeightRatio(display.getWidth(), display.getHeight())); |
| float offsetFromCenter = (wallpaperTravelHeight / (float) mWallpaperHeight) / 2f; |
| boolean isLandscape = display.getWidth() > display.getHeight(); |
| |
| switch (shrinkState) { |
| // animating in |
| case TOP: |
| // customize |
| wallpaperOffset = 0.5f + offsetFromCenter; |
| mWallpaperOffset.setVerticalCatchupConstant(isLandscape ? 0.46f : 0.44f); |
| break; |
| case MIDDLE: |
| case SPRING_LOADED: |
| wallpaperOffset = 0.5f; |
| mWallpaperOffset.setVerticalCatchupConstant(isLandscape ? 0.34f : 0.32f); |
| break; |
| case BOTTOM_HIDDEN: |
| case BOTTOM_VISIBLE: |
| // allapps |
| wallpaperOffset = 0.5f - offsetFromCenter; |
| mWallpaperOffset.setVerticalCatchupConstant(isLandscape ? 0.34f : 0.32f); |
| break; |
| } |
| |
| if (animated) { |
| mWallpaperOffset.setHorizontalCatchupConstant(0.46f); |
| mWallpaperOffset.setOverrideHorizontalCatchupConstant(true); |
| } |
| |
| setLayoutScale(1.0f); |
| if (animated) { |
| mSyncWallpaperOffsetWithScroll = false; |
| ObjectAnimator wallpaperAnim = ObjectAnimator.ofPropertyValuesHolder(this, |
| PropertyValuesHolder.ofFloat("verticalWallpaperOffset", wallpaperOffset), |
| PropertyValuesHolder.ofFloat("horizontalWallpaperOffset", 0.5f)); |
| mAnimator.play(wallpaperAnim); |
| |
| wallpaperAnim.setDuration(duration); |
| wallpaperAnim.setInterpolator(mZoomOutInterpolator); |
| mAnimator.addListener(mShrinkAnimationListener); |
| mAnimator.start(); |
| } else { |
| setVerticalWallpaperOffset(wallpaperOffset); |
| setHorizontalWallpaperOffset(0.5f); |
| updateWallpaperOffsetImmediately(); |
| } |
| setChildrenDrawnWithCacheEnabled(true); |
| |
| if (shrinkState == ShrinkState.TOP) { |
| showBackgroundGradientForCustomizeTray(); |
| } else { |
| showBackgroundGradientForAllApps(); |
| } |
| } |
| |
| /* |
| * 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 ZInterpolator zInterpolator = new ZInterpolator(0.2f); |
| private final DecelerateInterpolator decelerate = new DecelerateInterpolator(1.5f); |
| |
| 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 ZoomOutInterpolator mZoomOutInterpolator = new ZoomOutInterpolator(); |
| private final ZoomInInterpolator mZoomInInterpolator = new ZoomInInterpolator(); |
| |
| private void updateWhichPagesAcceptDrops(ShrinkState state) { |
| updateWhichPagesAcceptDropsHelper(state, false, 1, 1); |
| } |
| |
| private void updateWhichPagesAcceptDropsDuringDrag(ShrinkState state, int spanX, int spanY) { |
| updateWhichPagesAcceptDropsHelper(state, true, spanX, spanY); |
| } |
| |
| private void updateWhichPagesAcceptDropsHelper( |
| ShrinkState state, boolean isDragHappening, int spanX, int spanY) { |
| final int screenCount = getChildCount(); |
| for (int i = 0; i < screenCount; i++) { |
| CellLayout cl = (CellLayout) getChildAt(i); |
| cl.setIsDragOccuring(isDragHappening); |
| switch (state) { |
| case TOP: |
| cl.setIsDefaultDropTarget(i == mCurrentPage); |
| case BOTTOM_HIDDEN: |
| case BOTTOM_VISIBLE: |
| case SPRING_LOADED: |
| if (!isDragHappening) { |
| // even if a drag isn't happening, we don't want to show a screen as |
| // accepting drops if it doesn't have at least one free cell |
| spanX = 1; |
| spanY = 1; |
| } |
| // the page accepts drops if we can find at least one empty spot |
| cl.setAcceptsDrops(cl.findCellForSpan(null, spanX, spanY)); |
| break; |
| default: |
| throw new RuntimeException("Unhandled ShrinkState " + state); |
| } |
| } |
| } |
| |
| /* |
| * |
| * We call these methods (onDragStartedWithItemSpans/onDragStartedWithItemMinSize) 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 onDragStartedWithItemSpans(int spanX, int spanY, Bitmap b) { |
| mIsDragInProcess = true; |
| |
| final Canvas canvas = new Canvas(); |
| |
| // We need to add extra padding to the bitmap to make room for the glow effect |
| final int bitmapPadding = HolographicOutlineHelper.MAX_OUTER_BLUR_RADIUS; |
| |
| CellLayout cl = (CellLayout) getChildAt(0); |
| int[] desiredSize = cl.cellSpansToSize(spanX, spanY); |
| // The outline is used to visualize where the item will land if dropped |
| mDragOutline = createDragOutline(b, canvas, bitmapPadding, desiredSize[0], desiredSize[1]); |
| |
| updateWhichPagesAcceptDropsDuringDrag(mShrinkState, spanX, spanY); |
| } |
| |
| // we call this method whenever a drag and drop in Launcher finishes, even if Workspace was |
| // never dragged over |
| public void onDragStopped(boolean success) { |
| mLastDragView = null; |
| // In the success case, DragController has already called onDragExit() |
| if (!success) { |
| doDragExit(); |
| } |
| mIsDragInProcess = false; |
| updateWhichPagesAcceptDrops(mShrinkState); |
| } |
| |
| // We call this when we trigger an unshrink by clicking on the CellLayout cl |
| public void unshrink(CellLayout clThatWasClicked) { |
| unshrink(clThatWasClicked, false); |
| } |
| |
| public void unshrink(CellLayout clThatWasClicked, boolean springLoaded) { |
| int newCurrentPage = indexOfChild(clThatWasClicked); |
| if (mIsSmall) { |
| if (springLoaded) { |
| setLayoutScale(SPRING_LOADED_DRAG_SHRINK_FACTOR); |
| } |
| scrollToNewPageWithoutMovingPages(newCurrentPage); |
| unshrink(true, springLoaded); |
| } |
| } |
| |
| |
| public void enterSpringLoadedDragMode(CellLayout clThatWasClicked) { |
| mShrinkState = ShrinkState.SPRING_LOADED; |
| unshrink(clThatWasClicked, true); |
| mDragTargetLayout.onDragEnter(); |
| } |
| |
| public void exitSpringLoadedDragMode(ShrinkState shrinkState) { |
| shrink(shrinkState); |
| if (mDragTargetLayout != null) { |
| mDragTargetLayout.onDragExit(); |
| } |
| } |
| |
| void unshrink(boolean animated) { |
| unshrink(animated, false); |
| } |
| |
| void unshrink(boolean animated, boolean springLoaded) { |
| mWaitingToShrink = false; |
| if (mIsSmall) { |
| float finalScaleFactor = 1.0f; |
| float finalBackgroundAlpha = 0.0f; |
| if (springLoaded) { |
| finalScaleFactor = SPRING_LOADED_DRAG_SHRINK_FACTOR; |
| finalBackgroundAlpha = 1.0f; |
| } else { |
| mIsSmall = false; |
| } |
| if (mAnimator != null) { |
| mAnimator.cancel(); |
| } |
| |
| mAnimator = new AnimatorSet(); |
| final int screenCount = getChildCount(); |
| |
| final int duration = getResources().getInteger(R.integer.config_workspaceUnshrinkTime); |
| |
| for (int i = 0; i < screenCount; i++) { |
| final CellLayout cl = (CellLayout)getChildAt(i); |
| float finalAlphaValue = (i == mCurrentPage) ? 1.0f : 0.0f; |
| float finalAlphaMultiplierValue = |
| ((i == mCurrentPage) && (mShrinkState != ShrinkState.SPRING_LOADED)) ? |
| 0.0f : 1.0f; |
| float rotation = 0.0f; |
| |
| if (i < mCurrentPage) { |
| rotation = WORKSPACE_ROTATION; |
| } else if (i > mCurrentPage) { |
| rotation = -WORKSPACE_ROTATION; |
| } |
| |
| float translation = getOffsetXForRotation(rotation, cl.getWidth(), cl.getHeight()); |
| |
| if (animated) { |
| ObjectAnimator animWithInterpolator = ObjectAnimator.ofPropertyValuesHolder(cl, |
| PropertyValuesHolder.ofFloat("translationX", translation), |
| PropertyValuesHolder.ofFloat("translationY", 0.0f), |
| PropertyValuesHolder.ofFloat("scaleX", finalScaleFactor), |
| PropertyValuesHolder.ofFloat("scaleY", finalScaleFactor), |
| PropertyValuesHolder.ofFloat("backgroundAlpha", finalBackgroundAlpha), |
| PropertyValuesHolder.ofFloat("backgroundAlphaMultiplier", |
| finalAlphaMultiplierValue), |
| PropertyValuesHolder.ofFloat("alpha", finalAlphaValue)); |
| animWithInterpolator.setDuration(duration); |
| animWithInterpolator.setInterpolator(mZoomInInterpolator); |
| |
| ObjectAnimator rotationAnim = ObjectAnimator.ofPropertyValuesHolder(cl, |
| PropertyValuesHolder.ofFloat("rotationY", rotation)); |
| rotationAnim.setDuration(duration); |
| rotationAnim.setInterpolator(new DecelerateInterpolator(2.0f)); |
| |
| mAnimator.playTogether(animWithInterpolator, rotationAnim); |
| } else { |
| cl.setTranslationX(translation); |
| cl.setTranslationY(0.0f); |
| cl.setScaleX(finalScaleFactor); |
| cl.setScaleY(finalScaleFactor); |
| cl.setBackgroundAlpha(0.0f); |
| cl.setBackgroundAlphaMultiplier(finalAlphaMultiplierValue); |
| cl.setAlpha(finalAlphaValue); |
| cl.setRotationY(rotation); |
| mUnshrinkAnimationListener.onAnimationEnd(null); |
| } |
| } |
| Display display = mLauncher.getWindowManager().getDefaultDisplay(); |
| boolean isLandscape = display.getWidth() > display.getHeight(); |
| switch (mShrinkState) { |
| // animating out |
| case TOP: |
| // customize |
| if (animated) { |
| mWallpaperOffset.setHorizontalCatchupConstant(isLandscape ? 0.65f : 0.62f); |
| mWallpaperOffset.setVerticalCatchupConstant(isLandscape ? 0.65f : 0.62f); |
| mWallpaperOffset.setOverrideHorizontalCatchupConstant(true); |
| } |
| break; |
| case MIDDLE: |
| case SPRING_LOADED: |
| if (animated) { |
| mWallpaperOffset.setHorizontalCatchupConstant(isLandscape ? 0.49f : 0.46f); |
| mWallpaperOffset.setVerticalCatchupConstant(isLandscape ? 0.49f : 0.46f); |
| mWallpaperOffset.setOverrideHorizontalCatchupConstant(true); |
| } |
| break; |
| case BOTTOM_HIDDEN: |
| case BOTTOM_VISIBLE: |
| // all apps |
| if (animated) { |
| mWallpaperOffset.setHorizontalCatchupConstant(isLandscape ? 0.49f : 0.46f); |
| mWallpaperOffset.setVerticalCatchupConstant(isLandscape ? 0.49f : 0.46f); |
| mWallpaperOffset.setOverrideHorizontalCatchupConstant(true); |
| } |
| break; |
| } |
| if (animated) { |
| ObjectAnimator wallpaperAnim = ObjectAnimator.ofPropertyValuesHolder(this, |
| PropertyValuesHolder.ofFloat( |
| "verticalWallpaperOffset", 0.5f), |
| PropertyValuesHolder.ofFloat( |
| "horizontalWallpaperOffset", wallpaperOffsetForCurrentScroll())); |
| wallpaperAnim.setDuration(duration); |
| wallpaperAnim.setInterpolator(mZoomInInterpolator); |
| mAnimator.play(wallpaperAnim); |
| |
| // If we call this when we're not animated, onAnimationEnd is never called on |
| // the listener; make sure we only use the listener when we're actually animating |
| mAnimator.addListener(mUnshrinkAnimationListener); |
| mAnimator.start(); |
| } else { |
| setHorizontalWallpaperOffset(wallpaperOffsetForCurrentScroll()); |
| setVerticalWallpaperOffset(0.5f); |
| updateWallpaperOffsetImmediately(); |
| } |
| } |
| |
| if (!springLoaded) { |
| hideBackgroundGradient(); |
| } |
| } |
| |
| /** |
| * 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) { |
| final Rect clipRect = mTempRect; |
| v.getDrawingRect(clipRect); |
| |
| // For a TextView, adjust the clip rect so that we don't include the text label |
| 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); |
| } |
| |
| // Draw the View into the bitmap. |
| // The translate of scrollX and scrollY is necessary when drawing TextViews, because |
| // they set scrollX and scrollY to large values to achieve centered text |
| |
| destCanvas.save(); |
| destCanvas.translate(-v.getScrollX() + padding / 2, -v.getScrollY() + padding / 2); |
| destCanvas.clipRect(clipRect, Op.REPLACE); |
| v.draw(destCanvas); |
| destCanvas.restore(); |
| } |
| |
| /** |
| * 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(R.color.drag_outline_color); |
| final Bitmap b = Bitmap.createBitmap( |
| v.getWidth() + padding, v.getHeight() + padding, Bitmap.Config.ARGB_8888); |
| |
| canvas.setBitmap(b); |
| drawDragView(v, canvas, padding); |
| mOutlineHelper.applyMediumExpensiveOutlineWithBlur(b, canvas, outlineColor, outlineColor); |
| 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) { |
| final int outlineColor = getResources().getColor(R.color.drag_outline_color); |
| 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); |
| |
| Paint p = new Paint(); |
| p.setFilterBitmap(true); |
| canvas.drawBitmap(orig, src, dst, p); |
| mOutlineHelper.applyMediumExpensiveOutlineWithBlur(b, canvas, outlineColor, outlineColor); |
| |
| return b; |
| } |
| |
| /** |
| * Creates a drag outline to represent a drop (that we don't have the actual information for |
| * yet). May be changed in the future to alter the drop outline slightly depending on the |
| * clip description mime data. |
| */ |
| private Bitmap createExternalDragOutline(Canvas canvas, int padding) { |
| Resources r = getResources(); |
| final int outlineColor = r.getColor(R.color.drag_outline_color); |
| final int iconWidth = r.getDimensionPixelSize(R.dimen.workspace_cell_width); |
| final int iconHeight = r.getDimensionPixelSize(R.dimen.workspace_cell_height); |
| final int rectRadius = r.getDimensionPixelSize(R.dimen.external_drop_icon_rect_radius); |
| final int inset = (int) (Math.min(iconWidth, iconHeight) * 0.2f); |
| final Bitmap b = Bitmap.createBitmap( |
| iconWidth + padding, iconHeight + padding, Bitmap.Config.ARGB_8888); |
| |
| canvas.setBitmap(b); |
| canvas.drawRoundRect(new RectF(inset, inset, iconWidth - inset, iconHeight - inset), |
| rectRadius, rectRadius, mExternalDragOutlinePaint); |
| mOutlineHelper.applyMediumExpensiveOutlineWithBlur(b, canvas, outlineColor, outlineColor); |
| return b; |
| } |
| |
| /** |
| * Returns a new bitmap to show when the given View is being dragged around. |
| * Responsibility for the bitmap is transferred to the caller. |
| */ |
| private Bitmap createDragBitmap(View v, Canvas canvas, int padding) { |
| final int outlineColor = getResources().getColor(R.color.drag_outline_color); |
| final Bitmap b = Bitmap.createBitmap( |
| mDragOutline.getWidth(), mDragOutline.getHeight(), Bitmap.Config.ARGB_8888); |
| |
| canvas.setBitmap(b); |
| canvas.drawBitmap(mDragOutline, 0, 0, null); |
| drawDragView(v, canvas, padding); |
| mOutlineHelper.applyOuterBlur(b, canvas, outlineColor); |
| |
| 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; |
| |
| CellLayout current = (CellLayout) getChildAt(cellInfo.screen); |
| current.onDragChild(child); |
| |
| child.clearFocus(); |
| child.setPressed(false); |
| |
| final Canvas canvas = new Canvas(); |
| |
| // We need to add extra padding to the bitmap to make room for the glow effect |
| final int bitmapPadding = HolographicOutlineHelper.MAX_OUTER_BLUR_RADIUS; |
| |
| // The outline is used to visualize where the item will land if dropped |
| mDragOutline = createDragOutline(child, canvas, bitmapPadding); |
| |
| // The drag bitmap follows the touch point around on the screen |
| final Bitmap b = createDragBitmap(child, canvas, bitmapPadding); |
| |
| final int bmpWidth = b.getWidth(); |
| final int bmpHeight = b.getHeight(); |
| child.getLocationOnScreen(mTempXY); |
| final int screenX = (int) mTempXY[0] + (child.getWidth() - bmpWidth) / 2; |
| final int screenY = (int) mTempXY[1] + (child.getHeight() - bmpHeight) / 2; |
| mLauncher.lockScreenOrientation(); |
| mDragController.startDrag(b, screenX, screenY, 0, 0, bmpWidth, bmpHeight, this, |
| child.getTag(), DragController.DRAG_ACTION_MOVE, null); |
| b.recycle(); |
| } |
| |
| void addApplicationShortcut(ShortcutInfo info, int screen, int cellX, int cellY, |
| boolean insertAtFirst, int intersectX, int intersectY) { |
| final CellLayout cellLayout = (CellLayout) getChildAt(screen); |
| View view = mLauncher.createShortcut(R.layout.application, cellLayout, (ShortcutInfo) info); |
| |
| final int[] cellXY = new int[2]; |
| cellLayout.findCellForSpanThatIntersects(cellXY, 1, 1, intersectX, intersectY); |
| addInScreen(view, screen, cellXY[0], cellXY[1], 1, 1, insertAtFirst); |
| LauncherModel.addOrMoveItemInDatabase(mLauncher, info, |
| LauncherSettings.Favorites.CONTAINER_DESKTOP, screen, |
| cellXY[0], cellXY[1]); |
| } |
| |
| private void setPositionForDropAnimation( |
| View dragView, int dragViewX, int dragViewY, View parent, View child) { |
| final CellLayout.LayoutParams lp = (CellLayout.LayoutParams) child.getLayoutParams(); |
| |
| // Based on the position of the drag view, find the top left of the original view |
| int viewX = dragViewX + (dragView.getWidth() - child.getWidth()) / 2; |
| int viewY = dragViewY + (dragView.getHeight() - child.getHeight()) / 2; |
| viewX += getResources().getInteger(R.integer.config_dragViewOffsetX); |
| viewY += getResources().getInteger(R.integer.config_dragViewOffsetY); |
| |
| // Set its old pos (in the new parent's coordinates); it will be animated |
| // in animateViewIntoPosition after the next layout pass |
| lp.oldX = viewX - (parent.getLeft() - mScrollX); |
| lp.oldY = viewY - (parent.getTop() - mScrollY); |
| } |
| |
| /* |
| * We should be careful that this method cannot result in any synchronous requestLayout() |
| * calls, as it is called from onLayout(). |
| */ |
| public void animateViewIntoPosition(final View view) { |
| final CellLayout parent = (CellLayout) view.getParent().getParent(); |
| final CellLayout.LayoutParams lp = (CellLayout.LayoutParams) view.getLayoutParams(); |
| |
| // Convert the animation params to be relative to the Workspace, not the CellLayout |
| final int fromX = lp.oldX + parent.getLeft(); |
| final int fromY = lp.oldY + parent.getTop(); |
| |
| final int dx = lp.x - lp.oldX; |
| final int dy = lp.y - lp.oldY; |
| |
| // Calculate the duration of the animation based on the object's distance |
| final float dist = (float) Math.sqrt(dx*dx + dy*dy); |
| final Resources res = getResources(); |
| final float maxDist = (float) res.getInteger(R.integer.config_dropAnimMaxDist); |
| int duration = res.getInteger(R.integer.config_dropAnimMaxDuration); |
| if (dist < maxDist) { |
| duration *= mQuintEaseOutInterpolator.getInterpolation(dist / maxDist); |
| } |
| |
| if (mDropAnim != null) { |
| mDropAnim.end(); |
| } |
| mDropAnim = new ValueAnimator(); |
| mDropAnim.setInterpolator(mQuintEaseOutInterpolator); |
| |
| // The view is invisible during the animation; we render it manually. |
| mDropAnim.addListener(new AnimatorListenerAdapter() { |
| public void onAnimationStart(Animator animation) { |
| // Set this here so that we don't render it until the animation begins |
| mDropView = view; |
| } |
| |
| public void onAnimationEnd(Animator animation) { |
| if (mDropView != null) { |
| mDropView.setVisibility(View.VISIBLE); |
| mDropView = null; |
| } |
| } |
| }); |
| |
| mDropAnim.setDuration(duration); |
| mDropAnim.setFloatValues(0.0f, 1.0f); |
| mDropAnim.removeAllUpdateListeners(); |
| mDropAnim.addUpdateListener(new AnimatorUpdateListener() { |
| public void onAnimationUpdate(ValueAnimator animation) { |
| final float percent = (Float) animation.getAnimatedValue(); |
| // Invalidate the old position |
| invalidate(mDropViewPos[0], mDropViewPos[1], |
| mDropViewPos[0] + view.getWidth(), mDropViewPos[1] + view.getHeight()); |
| |
| mDropViewPos[0] = fromX + (int) (percent * dx + 0.5f); |
| mDropViewPos[1] = fromY + (int) (percent * dy + 0.5f); |
| invalidate(mDropViewPos[0], mDropViewPos[1], |
| mDropViewPos[0] + view.getWidth(), mDropViewPos[1] + view.getHeight()); |
| } |
| }); |
| |
| mDropAnim.start(); |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| public boolean acceptDrop(DragSource source, int x, int y, |
| int xOffset, int yOffset, DragView dragView, Object dragInfo) { |
| |
| // If it's an external drop (e.g. from All Apps), check if it should be accepted |
| if (source != this) { |
| // Don't accept the drop if we're not over a screen at time of drop |
| if (mDragTargetLayout == null || !mDragTargetLayout.getAcceptsDrops()) { |
| return false; |
| } |
| |
| final CellLayout.CellInfo dragCellInfo = mDragInfo; |
| final int spanX = dragCellInfo == null ? 1 : dragCellInfo.spanX; |
| final int spanY = dragCellInfo == null ? 1 : dragCellInfo.spanY; |
| |
| final View ignoreView = dragCellInfo == null ? null : dragCellInfo.cell; |
| |
| // Don't accept the drop if there's no room for the item |
| if (!mDragTargetLayout.findCellForSpanIgnoring(null, spanX, spanY, ignoreView)) { |
| mLauncher.showOutOfSpaceMessage(); |
| return false; |
| } |
| } |
| return true; |
| } |
| |
| public void onDrop(DragSource source, int x, int y, int xOffset, int yOffset, |
| DragView dragView, Object dragInfo) { |
| |
| int originX = x - xOffset; |
| int originY = y - yOffset; |
| |
| if (mIsSmall || mIsInUnshrinkAnimation) { |
| // get originX and originY in the local coordinate system of the screen |
| mTempOriginXY[0] = originX; |
| mTempOriginXY[1] = originY; |
| mapPointFromSelfToChild(mDragTargetLayout, mTempOriginXY); |
| originX = (int)mTempOriginXY[0]; |
| originY = (int)mTempOriginXY[1]; |
| } |
| |
| // When you drag to a particular screen, make that the new current/default screen, so any |
| // subsequent taps add items to that screen |
| int dragTargetIndex = indexOfChild(mDragTargetLayout); |
| if (mCurrentPage != dragTargetIndex && (mIsSmall || mIsInUnshrinkAnimation)) { |
| scrollToNewPageWithoutMovingPages(dragTargetIndex); |
| } |
| |
| if (source != this) { |
| if (!mIsSmall || mWasSpringLoadedOnDragExit) { |
| onDropExternal(originX, originY, dragInfo, mDragTargetLayout, false); |
| } else { |
| // if we drag and drop to small screens, don't pass the touch x/y coords (when we |
| // enable spring-loaded adding, however, we do want to pass the touch x/y coords) |
| onDropExternal(-1, -1, dragInfo, mDragTargetLayout, false); |
| } |
| } else if (mDragInfo != null) { |
| final View cell = mDragInfo.cell; |
| CellLayout dropTargetLayout = mDragTargetLayout; |
| |
| // Handle the case where the user drops when in the scroll area. |
| // This is treated as a drop on the adjacent page. |
| if (dropTargetLayout == null && mInScrollArea) { |
| if (mPendingScrollDirection == DragController.SCROLL_LEFT) { |
| dropTargetLayout = (CellLayout) getChildAt(mCurrentPage - 1); |
| } else if (mPendingScrollDirection == DragController.SCROLL_RIGHT) { |
| dropTargetLayout = (CellLayout) getChildAt(mCurrentPage + 1); |
| } |
| } |
| |
| if (dropTargetLayout != null) { |
| // Move internally |
| mTargetCell = findNearestVacantArea(originX, originY, |
| mDragInfo.spanX, mDragInfo.spanY, cell, dropTargetLayout, |
| mTargetCell); |
| |
| final int screen = (mTargetCell == null) ? |
| mDragInfo.screen : indexOfChild(dropTargetLayout); |
| |
| if (screen != mCurrentPage) { |
| snapToPage(screen); |
| } |
| |
| if (mTargetCell != null) { |
| if (screen != mDragInfo.screen) { |
| // Reparent the view |
| ((CellLayout) getChildAt(mDragInfo.screen)).removeView(cell); |
| addInScreen(cell, screen, mTargetCell[0], mTargetCell[1], |
| mDragInfo.spanX, mDragInfo.spanY); |
| } |
| |
| // update the item's position after drop |
| final ItemInfo info = (ItemInfo) cell.getTag(); |
| CellLayout.LayoutParams lp = (CellLayout.LayoutParams) cell.getLayoutParams(); |
| dropTargetLayout.onMove(cell, mTargetCell[0], mTargetCell[1]); |
| lp.cellX = mTargetCell[0]; |
| lp.cellY = mTargetCell[1]; |
| cell.setId(LauncherModel.getCellLayoutChildId(-1, mDragInfo.screen, |
| mTargetCell[0], mTargetCell[1], mDragInfo.spanX, mDragInfo.spanY)); |
| |
| LauncherModel.moveItemInDatabase(mLauncher, info, |
| LauncherSettings.Favorites.CONTAINER_DESKTOP, screen, |
| lp.cellX, lp.cellY); |
| } |
| } |
| |
| final CellLayout parent = (CellLayout) cell.getParent().getParent(); |
| |
| // Prepare it to be animated into its new position |
| // This must be called after the view has been re-parented |
| setPositionForDropAnimation(dragView, originX, originY, parent, cell); |
| boolean animateDrop = !mWasSpringLoadedOnDragExit; |
| parent.onDropChild(cell, animateDrop); |
| } |
| } |
| |
| public void onDragEnter(DragSource source, int x, int y, int xOffset, |
| int yOffset, DragView dragView, Object dragInfo) { |
| mDragTargetLayout = null; // Reset the drag state |
| |
| if (!mIsSmall) { |
| mDragTargetLayout = getCurrentDropLayout(); |
| mDragTargetLayout.onDragEnter(); |
| showOutlines(); |
| } |
| } |
| |
| public DropTarget getDropTargetDelegate(DragSource source, int x, int y, |
| int xOffset, int yOffset, DragView dragView, Object dragInfo) { |
| |
| if (mIsSmall || mIsInUnshrinkAnimation) { |
| // If we're shrunken, don't let anyone drag on folders/etc that are on the mini-screens |
| return null; |
| } |
| // We may need to delegate the drag to a child view. If a 1x1 item |
| // would land in a cell occupied by a DragTarget (e.g. a Folder), |
| // then drag events should be handled by that child. |
| |
| ItemInfo item = (ItemInfo)dragInfo; |
| CellLayout currentLayout = getCurrentDropLayout(); |
| |
| int dragPointX, dragPointY; |
| if (item.spanX == 1 && item.spanY == 1) { |
| // For a 1x1, calculate the drop cell exactly as in onDragOver |
| dragPointX = x - xOffset; |
| dragPointY = y - yOffset; |
| } else { |
| // Otherwise, use the exact drag coordinates |
| dragPointX = x; |
| dragPointY = y; |
| } |
| dragPointX += mScrollX - currentLayout.getLeft(); |
| dragPointY += mScrollY - currentLayout.getTop(); |
| |
| // If we are dragging over a cell that contains a DropTarget that will |
| // accept the drop, delegate to that DropTarget. |
| final int[] cellXY = mTempCell; |
| currentLayout.estimateDropCell(dragPointX, dragPointY, item.spanX, item.spanY, cellXY); |
| View child = currentLayout.getChildAt(cellXY[0], cellXY[1]); |
| if (child instanceof DropTarget) { |
| DropTarget target = (DropTarget)child; |
| if (target.acceptDrop(source, x, y, xOffset, yOffset, dragView, dragInfo)) { |
| return target; |
| } |
| } |
| return null; |
| } |
| |
| /** |
| * Tests to see if the drop will be accepted by Launcher, and if so, includes additional data |
| * in the returned structure related to the widgets that match the drop (or a null list if it is |
| * a shortcut drop). If the drop is not accepted then a null structure is returned. |
| */ |
| private Pair<Integer, List<WidgetMimeTypeHandlerData>> validateDrag(DragEvent event) { |
| final LauncherModel model = mLauncher.getModel(); |
| final ClipDescription desc = event.getClipDescription(); |
| final int mimeTypeCount = desc.getMimeTypeCount(); |
| for (int i = 0; i < mimeTypeCount; ++i) { |
| final String mimeType = desc.getMimeType(i); |
| if (mimeType.equals(InstallShortcutReceiver.SHORTCUT_MIMETYPE)) { |
| return new Pair<Integer, List<WidgetMimeTypeHandlerData>>(i, null); |
| } else { |
| final List<WidgetMimeTypeHandlerData> widgets = |
| model.resolveWidgetsForMimeType(mContext, mimeType); |
| if (widgets.size() > 0) { |
| return new Pair<Integer, List<WidgetMimeTypeHandlerData>>(i, widgets); |
| } |
| } |
| } |
| return null; |
| } |
| |
| /** |
| * Global drag and drop handler |
| */ |
| @Override |
| public boolean onDragEvent(DragEvent event) { |
| final ClipDescription desc = event.getClipDescription(); |
| final CellLayout layout = (CellLayout) getChildAt(mCurrentPage); |
| final int[] pos = new int[2]; |
| layout.getLocationOnScreen(pos); |
| // We need to offset the drag coordinates to layout coordinate space |
| final int x = (int) event.getX() - pos[0]; |
| final int y = (int) event.getY() - pos[1]; |
| |
| switch (event.getAction()) { |
| case DragEvent.ACTION_DRAG_STARTED: { |
| // Validate this drag |
| Pair<Integer, List<WidgetMimeTypeHandlerData>> test = validateDrag(event); |
| if (test != null) { |
| boolean isShortcut = (test.second == null); |
| if (isShortcut) { |
| // Check if we have enough space on this screen to add a new shortcut |
| if (!layout.findCellForSpan(pos, 1, 1)) { |
| Toast.makeText(mContext, mContext.getString(R.string.out_of_space), |
| Toast.LENGTH_SHORT).show(); |
| return false; |
| } |
| } |
| } else { |
| // Show error message if we couldn't accept any of the items |
| Toast.makeText(mContext, mContext.getString(R.string.external_drop_widget_error), |
| Toast.LENGTH_SHORT).show(); |
| return false; |
| } |
| |
| // Create the drag outline |
| // We need to add extra padding to the bitmap to make room for the glow effect |
| final Canvas canvas = new Canvas(); |
| final int bitmapPadding = HolographicOutlineHelper.MAX_OUTER_BLUR_RADIUS; |
| mDragOutline = createExternalDragOutline(canvas, bitmapPadding); |
| |
| // Show the current page outlines to indicate that we can accept this drop |
| showOutlines(); |
| layout.setIsDragOccuring(true); |
| layout.onDragEnter(); |
| layout.visualizeDropLocation(null, mDragOutline, x, y, 1, 1); |
| |
| return true; |
| } |
| case DragEvent.ACTION_DRAG_LOCATION: |
| // Visualize the drop location |
| layout.visualizeDropLocation(null, mDragOutline, x, y, 1, 1); |
| return true; |
| case DragEvent.ACTION_DROP: { |
| // Try and add any shortcuts |
| final LauncherModel model = mLauncher.getModel(); |
| final ClipData data = event.getClipData(); |
| |
| // We assume that the mime types are ordered in descending importance of |
| // representation. So we enumerate the list of mime types and alert the |
| // user if any widgets can handle the drop. Only the most preferred |
| // representation will be handled. |
| pos[0] = x; |
| pos[1] = y; |
| Pair<Integer, List<WidgetMimeTypeHandlerData>> test = validateDrag(event); |
| if (test != null) { |
| final int index = test.first; |
| final List<WidgetMimeTypeHandlerData> widgets = test.second; |
| final boolean isShortcut = (widgets == null); |
| final String mimeType = desc.getMimeType(index); |
| if (isShortcut) { |
| final Intent intent = data.getItemAt(index).getIntent(); |
| Object info = model.infoFromShortcutIntent(mContext, intent, data.getIcon()); |
| onDropExternal(x, y, info, layout, false); |
| } else { |
| if (widgets.size() == 1) { |
| // If there is only one item, then go ahead and add and configure |
| // that widget |
| final AppWidgetProviderInfo widgetInfo = widgets.get(0).widgetInfo; |
| final PendingAddWidgetInfo createInfo = |
| new PendingAddWidgetInfo(widgetInfo, mimeType, data); |
| mLauncher.addAppWidgetFromDrop(createInfo, mCurrentPage, pos); |
| } else { |
| // Show the widget picker dialog if there is more than one widget |
| // that can handle this data type |
| final InstallWidgetReceiver.WidgetListAdapter adapter = |
| new InstallWidgetReceiver.WidgetListAdapter(mLauncher, mimeType, |
| data, widgets, layout, mCurrentPage, pos); |
| final AlertDialog.Builder builder = |
| new AlertDialog.Builder(mContext); |
| builder.setAdapter(adapter, adapter); |
| builder.setCancelable(true); |
| builder.setTitle(mContext.getString( |
| R.string.external_drop_widget_pick_title)); |
| builder.setIcon(R.drawable.ic_no_applications); |
| builder.show(); |
| } |
| } |
| } |
| return true; |
| } |
| case DragEvent.ACTION_DRAG_ENDED: |
| // Hide the page outlines after the drop |
| layout.setIsDragOccuring(false); |
| layout.onDragExit(); |
| hideOutlines(); |
| return true; |
| } |
| return super.onDragEvent(event); |
| } |
| |
| /* |
| * |
| * 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; |
| } |
| xy[0] = xy[0] + mScrollX - v.getLeft(); |
| xy[1] = xy[1] + mScrollY - v.getTop(); |
| cachedInverseMatrix.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); |
| xy[0] -= (mScrollX - v.getLeft()); |
| xy[1] -= (mScrollY - 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, int originX, int originY, int offsetX, int offsetY) { |
| // 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 = mTempTouchCoordinates; |
| touchXy[0] = originX + offsetX; |
| touchXy[1] = originY + offsetY; |
| |
| // 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 (overlaps(cl, dragView, originX, originY, mTempInverseMatrix)) { |
| // 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 + offsetX; |
| touchXy[1] = originY + offsetY; |
| |
| // 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; |
| } |
| |
| public void onDragOver(DragSource source, int x, int y, int xOffset, int yOffset, |
| DragView dragView, Object dragInfo) { |
| // When touch is inside the scroll area, skip dragOver actions for the current screen |
| if (!mInScrollArea) { |
| CellLayout layout; |
| int originX = x - xOffset; |
| int originY = y - yOffset; |
| boolean shrunken = mIsSmall || mIsInUnshrinkAnimation; |
| if (shrunken) { |
| mLastDragView = dragView; |
| mLastDragOriginX = originX; |
| mLastDragOriginY = originY; |
| mLastDragXOffset = xOffset; |
| mLastDragYOffset = yOffset; |
| layout = findMatchingPageForDragOver(dragView, originX, originY, xOffset, yOffset); |
| |
| if (layout != mDragTargetLayout) { |
| if (mDragTargetLayout != null) { |
| mDragTargetLayout.setIsDragOverlapping(false); |
| mSpringLoadedDragController.onDragExit(); |
| } |
| mDragTargetLayout = layout; |
| if (mDragTargetLayout != null && mDragTargetLayout.getAcceptsDrops()) { |
| mDragTargetLayout.setIsDragOverlapping(true); |
| mSpringLoadedDragController.onDragEnter( |
| mDragTargetLayout, mShrinkState == ShrinkState.SPRING_LOADED); |
| } |
| } |
| } else { |
| layout = getCurrentDropLayout(); |
| if (layout != mDragTargetLayout) { |
| if (mDragTargetLayout != null) { |
| mDragTargetLayout.onDragExit(); |
| } |
| layout.onDragEnter(); |
| mDragTargetLayout = layout; |
| } |
| } |
| if (!shrunken || mShrinkState == ShrinkState.SPRING_LOADED) { |
| layout = getCurrentDropLayout(); |
| |
| final ItemInfo item = (ItemInfo)dragInfo; |
| if (dragInfo instanceof LauncherAppWidgetInfo) { |
| LauncherAppWidgetInfo widgetInfo = (LauncherAppWidgetInfo)dragInfo; |
| |
| if (widgetInfo.spanX == -1) { |
| // Calculate the grid spans needed to fit this widget |
| int[] spans = layout.rectToCell( |
| widgetInfo.minWidth, widgetInfo.minHeight, null); |
| item.spanX = spans[0]; |
| item.spanY = spans[1]; |
| } |
| } |
| |
| if (source instanceof AllAppsPagedView) { |
| // This is a hack to fix the point used to determine which cell an icon from |
| // the all apps screen is over |
| if (item != null && item.spanX == 1 && layout != null) { |
| int dragRegionLeft = (dragView.getWidth() - layout.getCellWidth()) / 2; |
| |
| originX += dragRegionLeft - dragView.getDragRegionLeft(); |
| if (dragView.getDragRegionWidth() != layout.getCellWidth()) { |
| dragView.setDragRegion(dragView.getDragRegionLeft(), |
| dragView.getDragRegionTop(), |
| layout.getCellWidth(), |
| dragView.getDragRegionHeight()); |
| } |
| } |
| } else if (source == this) { |
| // When dragging from the workspace, the drag view is slightly bigger than |
| // the original view, and offset vertically. Adjust to account for this. |
| final View origView = mDragInfo.cell; |
| originX += (dragView.getMeasuredWidth() - origView.getWidth()) / 2; |
| originY += (dragView.getMeasuredHeight() - origView.getHeight()) / 2 |
| + dragView.getOffsetY(); |
| } |
| |
| if (mDragTargetLayout != null) { |
| final View child = (mDragInfo == null) ? null : mDragInfo.cell; |
| float[] localOrigin = { originX, originY }; |
| mapPointFromSelfToChild(mDragTargetLayout, localOrigin, null); |
| mDragTargetLayout.visualizeDropLocation(child, mDragOutline, |
| (int) localOrigin[0], (int) localOrigin[1], item.spanX, item.spanY); |
| } |
| } |
| } |
| } |
| |
| private void doDragExit() { |
| mWasSpringLoadedOnDragExit = mShrinkState == ShrinkState.SPRING_LOADED; |
| if (mDragTargetLayout != null) { |
| mDragTargetLayout.onDragExit(); |
| } |
| if (!mIsPageMoving) { |
| hideOutlines(); |
| } |
| if (mShrinkState == ShrinkState.SPRING_LOADED) { |
| mLauncher.exitSpringLoadedDragMode(); |
| } |
| clearAllHovers(); |
| } |
| |
| public void onDragExit(DragSource source, int x, int y, int xOffset, |
| int yOffset, DragView dragView, Object dragInfo) { |
| doDragExit(); |
| } |
| |
| @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. |
| final Display d = mLauncher.getWindowManager().getDefaultDisplay(); |
| outRect.set(0, 0, d.getWidth(), d.getHeight()); |
| } |
| |
| /** |
| * 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(-1, -1, (ItemInfo) dragInfo, (CellLayout) layout, false); |
| return true; |
| } |
| mLauncher.showOutOfSpaceMessage(); |
| return false; |
| } |
| |
| /** |
| * 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(int x, int y, Object dragInfo, |
| CellLayout cellLayout, boolean insertAtFirst) { |
| int screen = indexOfChild(cellLayout); |
| if (dragInfo instanceof PendingAddItemInfo) { |
| PendingAddItemInfo info = (PendingAddItemInfo) dragInfo; |
| // When dragging and dropping from customization tray, we deal with creating |
| // widgets/shortcuts/folders in a slightly different way |
| // Only set touchXY if you are supporting spring loaded adding of items |
| int[] touchXY = new int[2]; |
| touchXY[0] = x; |
| touchXY[1] = y; |
| switch (info.itemType) { |
| case LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET: |
| mLauncher.addAppWidgetFromDrop((PendingAddWidgetInfo) info, screen, touchXY); |
| break; |
| case LauncherSettings.Favorites.ITEM_TYPE_LIVE_FOLDER: |
| mLauncher.addLiveFolderFromDrop(info.componentName, screen, touchXY); |
| break; |
| case LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT: |
| mLauncher.processShortcutFromDrop(info.componentName, screen, touchXY); |
| break; |
| default: |
| throw new IllegalStateException("Unknown item type: " + info.itemType); |
| } |
| cellLayout.onDragExit(); |
| } else { |
| // This is for other drag/drop cases, like dragging from All Apps |
| ItemInfo info = (ItemInfo) dragInfo; |
| 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_USER_FOLDER: |
| view = FolderIcon.fromXml(R.layout.folder_icon, mLauncher, |
| cellLayout, (UserFolderInfo) info, mIconCache); |
| break; |
| default: |
| throw new IllegalStateException("Unknown item type: " + info.itemType); |
| } |
| |
| mTargetCell = new int[2]; |
| if (x != -1 && y != -1) { |
| // when dragging and dropping, just find the closest free spot |
| cellLayout.findNearestVacantArea(x, y, 1, 1, mTargetCell); |
| } else { |
| cellLayout.findCellForSpan(mTargetCell, 1, 1); |
| } |
| addInScreen(view, indexOfChild(cellLayout), mTargetCell[0], |
| mTargetCell[1], info.spanX, info.spanY, insertAtFirst); |
| boolean animateDrop = !mWasSpringLoadedOnDragExit; |
| cellLayout.onDropChild(view, animateDrop); |
| cellLayout.animateDrop(); |
| CellLayout.LayoutParams lp = (CellLayout.LayoutParams) view.getLayoutParams(); |
| |
| LauncherModel.addOrMoveItemInDatabase(mLauncher, info, |
| LauncherSettings.Favorites.CONTAINER_DESKTOP, screen, |
| lp.cellX, lp.cellY); |
| } |
| } |
| |
| /** |
| * Return the current {@link CellLayout}, correctly picking the destination |
| * screen while a scroll is in progress. |
| */ |
| private CellLayout getCurrentDropLayout() { |
| // if we're currently small, use findMatchingPageForDragOver instead |
| if (mIsSmall) return null; |
| int index = mScroller.isFinished() ? mCurrentPage : mNextPage; |
| return (CellLayout) getChildAt(index); |
| } |
| |
| /** |
| * 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. |
| */ |
| private int[] findNearestVacantArea(int pixelX, int pixelY, |
| int spanX, int spanY, View ignoreView, CellLayout layout, int[] recycle) { |
| |
| int localPixelX = pixelX - (layout.getLeft() - mScrollX); |
| int localPixelY = pixelY - (layout.getTop() - mScrollY); |
| |
| // Find the best target drop location |
| return layout.findNearestVacantArea( |
| localPixelX, localPixelY, spanX, spanY, ignoreView, recycle); |
| } |
| |
| void setLauncher(Launcher launcher) { |
| mLauncher = launcher; |
| mSpringLoadedDragController = new SpringLoadedDragController(mLauncher); |
| |
| mCustomizationDrawer = mLauncher.findViewById(R.id.customization_drawer); |
| if (mCustomizationDrawer != null) { |
| mCustomizationDrawerContent = |
| mCustomizationDrawer.findViewById(com.android.internal.R.id.tabcontent); |
| } |
| } |
| |
| public void setDragController(DragController dragController) { |
| mDragController = dragController; |
| } |
| |
| /** |
| * Called at the end of a drag which originated on the workspace. |
| */ |
| public void onDropCompleted(View target, boolean success) { |
| if (success) { |
| if (target != this && mDragInfo != null) { |
| final CellLayout cellLayout = (CellLayout) getChildAt(mDragInfo.screen); |
| cellLayout.removeView(mDragInfo.cell); |
| if (mDragInfo.cell instanceof DropTarget) { |
| mDragController.removeDropTarget((DropTarget)mDragInfo.cell); |
| } |
| // final Object tag = mDragInfo.cell.getTag(); |
| } |
| } else if (mDragInfo != null) { |
| // NOTE: When 'success' is true, onDragExit is called by the DragController before |
| // calling onDropCompleted(). We call it ourselves here, but maybe this should be |
| // moved into DragController.cancelDrag(). |
| doDragExit(); |
| ((CellLayout) getChildAt(mDragInfo.screen)).onDropChild(mDragInfo.cell, false); |
| } |
| mLauncher.unlockScreenOrientation(); |
| mDragOutline = null; |
| mDragInfo = null; |
| } |
| |
| @Override |
| public void onDragViewVisible() { |
| ((View) mDragInfo.cell).setVisibility(View.GONE); |
| } |
| |
| public boolean isDropEnabled() { |
| return true; |
| } |
| |
| @Override |
| protected void onRestoreInstanceState(Parcelable state) { |
| super.onRestoreInstanceState(state); |
| Launcher.setScreen(mCurrentPage); |
| } |
| |
| @Override |
| public void scrollLeft() { |
| if (!mIsSmall && !mIsInUnshrinkAnimation) { |
| super.scrollLeft(); |
| } |
| } |
| |
| @Override |
| public void scrollRight() { |
| if (!mIsSmall && !mIsInUnshrinkAnimation) { |
| super.scrollRight(); |
| } |
| } |
| |
| @Override |
| public void onEnterScrollArea(int direction) { |
| if (!mIsSmall && !mIsInUnshrinkAnimation) { |
| mInScrollArea = true; |
| mPendingScrollDirection = direction; |
| |
| final int page = mCurrentPage + (direction == DragController.SCROLL_LEFT ? -1 : 1); |
| final CellLayout layout = (CellLayout) getChildAt(page); |
| |
| if (layout != null) { |
| layout.setIsDragOverlapping(true); |
| |
| if (mDragTargetLayout != null) { |
| mDragTargetLayout.onDragExit(); |
| mDragTargetLayout = null; |
| } |
| } |
| } |
| } |
| |
| private void clearAllHovers() { |
| final int childCount = getChildCount(); |
| for (int i = 0; i < childCount; i++) { |
| ((CellLayout) getChildAt(i)).setIsDragOverlapping(false); |
| } |
| mSpringLoadedDragController.onDragExit(); |
| } |
| |
| @Override |
| public void onExitScrollArea() { |
| if (mInScrollArea) { |
| mInScrollArea = false; |
| mPendingScrollDirection = DragController.SCROLL_NONE; |
| clearAllHovers(); |
| } |
| } |
| |
| public Folder getFolderForTag(Object tag) { |
| final int screenCount = getChildCount(); |
| for (int screen = 0; screen < screenCount; screen++) { |
| ViewGroup currentScreen = ((CellLayout) getChildAt(screen)).getChildrenLayout(); |
| int count = currentScreen.getChildCount(); |
| for (int i = 0; i < count; i++) { |
| View child = currentScreen.getChildAt(i); |
| CellLayout.LayoutParams lp = (CellLayout.LayoutParams) child.getLayoutParams(); |
| if (lp.cellHSpan == 4 && lp.cellVSpan == 4 && child instanceof Folder) { |
| Folder f = (Folder) child; |
| if (f.getInfo() == tag && f.getInfo().opened) { |
| return f; |
| } |
| } |
| } |
| } |
| return null; |
| } |
| |
| public View getViewForTag(Object tag) { |
| int screenCount = getChildCount(); |
| for (int screen = 0; screen < screenCount; screen++) { |
| ViewGroup currentScreen = ((CellLayout) getChildAt(screen)).getChildrenLayout(); |
| int count = currentScreen.getChildCount(); |
| for (int i = 0; i < count; i++) { |
| View child = currentScreen.getChildAt(i); |
| if (child.getTag() == tag) { |
| return child; |
| } |
| } |
| } |
| return null; |
| } |
| |
| |
| void removeItems(final ArrayList<ApplicationInfo> apps) { |
| final int screenCount = getChildCount(); |
| final PackageManager manager = getContext().getPackageManager(); |
| final AppWidgetManager widgets = AppWidgetManager.getInstance(getContext()); |
| |
| final HashSet<String> packageNames = new HashSet<String>(); |
| final int appCount = apps.size(); |
| for (int i = 0; i < appCount; i++) { |
| packageNames.add(apps.get(i).componentName.getPackageName()); |
| } |
| |
| for (int i = 0; i < screenCount; i++) { |
| final CellLayout layoutParent = (CellLayout) getChildAt(i); |
| final ViewGroup layout = layoutParent.getChildrenLayout(); |
| |
| // 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 (Intent.ACTION_MAIN.equals(intent.getAction()) && name != null) { |
| for (String packageName: packageNames) { |
| if (packageName.equals(name.getPackageName())) { |
| LauncherModel.deleteItemFromDatabase(mLauncher, info); |
| childrenToRemove.add(view); |
| } |
| } |
| } |
| } else if (tag instanceof UserFolderInfo) { |
| final UserFolderInfo info = (UserFolderInfo) tag; |
| final ArrayList<ShortcutInfo> contents = info.contents; |
| final ArrayList<ShortcutInfo> toRemove = new ArrayList<ShortcutInfo>(1); |
| final int contentsCount = contents.size(); |
| boolean removedFromFolder = false; |
| |
| for (int k = 0; k < contentsCount; k++) { |
| final ShortcutInfo appInfo = contents.get(k); |
| final Intent intent = appInfo.intent; |
| final ComponentName name = intent.getComponent(); |
| |
| if (Intent.ACTION_MAIN.equals(intent.getAction()) && name != null) { |
| for (String packageName: packageNames) { |
| if (packageName.equals(name.getPackageName())) { |
| toRemove.add(appInfo); |
| LauncherModel.deleteItemFromDatabase(mLauncher, appInfo); |
| removedFromFolder = true; |
| } |
| } |
| } |
| } |
| |
| contents.removeAll(toRemove); |
| if (removedFromFolder) { |
| final Folder folder = getOpenFolder(); |
| if (folder != null) |
| folder.notifyDataSetChanged(); |
| } |
| } else if (tag instanceof LiveFolderInfo) { |
| final LiveFolderInfo info = (LiveFolderInfo) tag; |
| final Uri uri = info.uri; |
| final ProviderInfo providerInfo = manager.resolveContentProvider( |
| uri.getAuthority(), 0); |
| |
| if (providerInfo != null) { |
| for (String packageName: packageNames) { |
| if (packageName.equals(providerInfo.packageName)) { |
| LauncherModel.deleteItemFromDatabase(mLauncher, info); |
| childrenToRemove.add(view); |
| } |
| } |
| } |
| } else if (tag instanceof LauncherAppWidgetInfo) { |
| final LauncherAppWidgetInfo info = (LauncherAppWidgetInfo) tag; |
| final AppWidgetProviderInfo provider = |
| widgets.getAppWidgetInfo(info.appWidgetId); |
| if (provider != null) { |
| for (String packageName: packageNames) { |
| if (packageName.equals(provider.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(); |
| } |
| } |
| }); |
| } |
| } |
| |
| void updateShortcuts(ArrayList<ApplicationInfo> apps) { |
| final int screenCount = getChildCount(); |
| for (int i = 0; i < screenCount; i++) { |
| final ViewGroup layout = ((CellLayout) getChildAt(i)).getChildrenLayout(); |
| 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)) { |
| info.setIcon(mIconCache.getIcon(info.intent)); |
| ((TextView)view).setCompoundDrawablesWithIntrinsicBounds(null, |
| new FastBitmapDrawable(info.getIcon(mIconCache)), |
| null, null); |
| } |
| } |
| } |
| } |
| } |
| } |
| } |
| |
| void moveToDefaultScreen(boolean animate) { |
| if (mIsSmall || mIsInUnshrinkAnimation) { |
| mLauncher.showWorkspace(animate, (CellLayout)getChildAt(mDefaultPage)); |
| } else if (animate) { |
| snapToPage(mDefaultPage); |
| } else { |
| setCurrentPage(mDefaultPage); |
| } |
| getChildAt(mDefaultPage).requestFocus(); |
| } |
| |
| void setIndicators(Drawable previous, Drawable next) { |
| mPreviousIndicator = previous; |
| mNextIndicator = next; |
| previous.setLevel(mCurrentPage); |
| next.setLevel(mCurrentPage); |
| } |
| |
| @Override |
| public void syncPages() { |
| } |
| |
| @Override |
| public void syncPageItems(int page) { |
| } |
| |
| } |