| /* |
| * 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 android.animation.Animator; |
| import android.animation.AnimatorListenerAdapter; |
| import android.animation.AnimatorSet; |
| import android.animation.ObjectAnimator; |
| 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.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.os.IBinder; |
| import android.os.Parcelable; |
| import android.util.AttributeSet; |
| import android.util.DisplayMetrics; |
| 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 com.android.launcher.R; |
| import com.android.launcher2.FolderIcon.FolderRingAnimator; |
| import com.android.launcher2.InstallWidgetReceiver.WidgetMimeTypeHandlerData; |
| |
| 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"; |
| |
| // 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 ValueAnimator mBackgroundFadeInAnimation; |
| private ValueAnimator mBackgroundFadeOutAnimation; |
| private Drawable mBackground; |
| boolean mDrawBackground = true; |
| private float mBackgroundAlpha = 0; |
| private float mOverScrollMaxBackgroundAlpha = 0.0f; |
| private int mOverScrollPageIndex = -1; |
| |
| private final WallpaperManager mWallpaperManager; |
| private IBinder mWindowToken; |
| |
| private int mDefaultPage; |
| |
| /** |
| * CellInfo for the cell that is currently being dragged |
| */ |
| private CellLayout.CellInfo mDragInfo; |
| |
| /** |
| * Target drop area calculated during last acceptDrop call. |
| */ |
| private int[] mTargetCell = new int[2]; |
| |
| /** |
| * 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[] mDragViewVisualCenter = 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 float mSpringLoadedShrinkFactor; |
| |
| private static final int DEFAULT_CELL_COUNT_X = 4; |
| private static final int DEFAULT_CELL_COUNT_Y = 4; |
| |
| // State variable that indicates whether the pages are small (ie when you're |
| // in all apps or customize mode) |
| private boolean mIsSmall = false; |
| private boolean mIsInUnshrinkAnimation = false; |
| private AnimatorListener mShrinkAnimationListener; |
| private AnimatorListener mUnshrinkAnimationListener; |
| enum ShrinkState { SPRING_LOADED, MIDDLE, BOTTOM_HIDDEN, BOTTOM_VISIBLE }; |
| private ShrinkState mShrinkState; |
| 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; |
| |
| private final HolographicOutlineHelper mOutlineHelper = new HolographicOutlineHelper(); |
| private Bitmap mDragOutline = null; |
| private final Rect mTempRect = new Rect(); |
| private final int[] mTempXY = new int[2]; |
| |
| // 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; |
| private Runnable mDelayedResizeRunnable; |
| |
| // Variables relating to the creation of user folders by hovering shortcuts over shortcuts |
| private static final int FOLDER_CREATION_TIMEOUT = 250; |
| private final Alarm mFolderCreationAlarm = new Alarm(); |
| private FolderRingAnimator mDragFolderRingAnimator = null; |
| private View mLastDragOverView = null; |
| private boolean mCreateUserFolderOnDrop = false; |
| |
| // Variables relating to touch disambiguation (scrolling workspace vs. scrolling a widget) |
| private float mXDown; |
| private float mYDown; |
| final static float START_DAMPING_TOUCH_SLOP_ANGLE = (float) Math.PI / 6; |
| final static float MAX_SWIPE_ANGLE = (float) Math.PI / 3; |
| final static float TOUCH_SLOP_DAMPING_FACTOR = 4; |
| |
| /** |
| * 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; |
| |
| // With workspace, data is available straight from the get-go |
| setDataIsReady(); |
| |
| if (!LauncherApplication.isScreenLarge()) { |
| mFadeInAdjacentScreens = false; |
| } |
| |
| mWallpaperManager = WallpaperManager.getInstance(context); |
| |
| int cellCountX = DEFAULT_CELL_COUNT_X; |
| int cellCountY = DEFAULT_CELL_COUNT_Y; |
| |
| TypedArray a = context.obtainStyledAttributes(attrs, |
| R.styleable.Workspace, defStyle, 0); |
| |
| final Resources res = context.getResources(); |
| if (LauncherApplication.isScreenLarge()) { |
| // Determine number of rows/columns dynamically |
| // TODO: This code currently fails on tablets with an aspect ratio < 1.3. |
| // Around that ratio we should make cells the same size in portrait and |
| // landscape |
| TypedArray actionBarSizeTypedArray = |
| context.obtainStyledAttributes(new int[] { android.R.attr.actionBarSize }); |
| final float actionBarHeight = actionBarSizeTypedArray.getDimension(0, 0f); |
| final float systemBarHeight = res.getDimension(R.dimen.status_bar_height); |
| final float smallestScreenDim = res.getConfiguration().smallestScreenWidthDp; |
| |
| cellCountX = 1; |
| while (CellLayout.widthInPortrait(res, cellCountX + 1) <= smallestScreenDim) { |
| cellCountX++; |
| } |
| |
| cellCountY = 1; |
| while (actionBarHeight + CellLayout.heightInLandscape(res, cellCountY + 1) |
| <= smallestScreenDim - systemBarHeight) { |
| cellCountY++; |
| } |
| } |
| |
| mSpringLoadedShrinkFactor = |
| res.getInteger(R.integer.config_workspaceSpringLoadShrinkPercentage) / 100.0f; |
| |
| // if the value is manually specified, use that instead |
| cellCountX = a.getInt(R.styleable.Workspace_cellCountX, cellCountX); |
| cellCountY = a.getInt(R.styleable.Workspace_cellCountY, cellCountY); |
| mDefaultPage = a.getInt(R.styleable.Workspace_defaultScreen, 1); |
| a.recycle(); |
| |
| LauncherModel.updateWorkspaceLayoutCells(cellCountX, cellCountY); |
| setHapticFeedbackEnabled(false); |
| |
| initWorkspace(); |
| |
| // Disable multitouch across the workspace/all apps/customize tray |
| setMotionEventSplittingEnabled(true); |
| } |
| |
| /** |
| * 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.apps_customize_bg); |
| } catch (Resources.NotFoundException e) { |
| // In this case, we will skip drawing background protection |
| } |
| |
| mUnshrinkAnimationListener = new AnimatorListenerAdapter() { |
| @Override |
| public void onAnimationStart(Animator animation) { |
| mIsInUnshrinkAnimation = true; |
| } |
| |
| @Override |
| public void onAnimationEnd(Animator animation) { |
| mIsInUnshrinkAnimation = false; |
| mSyncWallpaperOffsetWithScroll = true; |
| mWallpaperOffset.setOverrideHorizontalCatchupConstant(false); |
| mAnimator = null; |
| enableChildrenLayers(false); |
| } |
| }; |
| mShrinkAnimationListener = new AnimatorListenerAdapter() { |
| @Override |
| public void onAnimationStart(Animator animation) { |
| enableChildrenLayers(true); |
| } |
| @Override |
| public void onAnimationEnd(Animator animation) { |
| mWallpaperOffset.setOverrideHorizontalCatchupConstant(false); |
| mAnimator = null; |
| } |
| }; |
| mSnapVelocity = 600; |
| mWallpaperOffset = new WallpaperOffsetInterpolator(); |
| } |
| |
| @Override |
| protected int getScrollMode() { |
| return SmoothPagedView.X_LARGE_MODE; |
| } |
| |
| private void onAddView(View child) { |
| if (!(child instanceof CellLayout)) { |
| throw new IllegalArgumentException("A Workspace can only have CellLayout children."); |
| } |
| CellLayout cl = ((CellLayout) child); |
| cl.setOnInterceptTouchListener(this); |
| cl.setClickable(true); |
| cl.enableHardwareLayers(); |
| } |
| |
| @Override |
| public void addView(View child, int index, LayoutParams params) { |
| onAddView(child); |
| super.addView(child, index, params); |
| } |
| |
| @Override |
| public void addView(View child) { |
| onAddView(child); |
| super.addView(child); |
| } |
| |
| @Override |
| public void addView(View child, int index) { |
| onAddView(child); |
| super.addView(child, index); |
| } |
| |
| @Override |
| public void addView(View child, int width, int height) { |
| onAddView(child); |
| super.addView(child, width, height); |
| } |
| |
| @Override |
| public void addView(View child, LayoutParams params) { |
| onAddView(child); |
| super.addView(child, params); |
| } |
| |
| /** |
| * @return The open folder on the current screen, or null if there is none |
| */ |
| Folder getOpenFolder() { |
| DragLayer dragLayer = mLauncher.getDragLayer(); |
| int count = dragLayer.getChildCount(); |
| for (int i = 0; i < count; i++) { |
| View child = dragLayer.getChildAt(i); |
| if (child instanceof Folder) { |
| Folder folder = (Folder) child; |
| if (folder.getInfo().opened) |
| return folder; |
| } |
| } |
| return null; |
| } |
| |
| boolean isTouchActive() { |
| return mTouchState != TOUCH_STATE_REST; |
| } |
| |
| /** |
| * Adds the specified child in the specified screen. The position and dimension of |
| * the child are defined by x, y, spanX and spanY. |
| * |
| * @param child The child to add in one of the workspace's screens. |
| * @param screen The screen in which to add the child. |
| * @param x The X position of the child in the screen's grid. |
| * @param y The Y position of the child in the screen's grid. |
| * @param spanX The number of cells spanned horizontally by the child. |
| * @param spanY The number of cells spanned vertically by the child. |
| */ |
| void addInScreen(View child, 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; |
| } |
| |
| if (spanX < 0 && spanY < 0) { |
| lp.isLockedToGrid = false; |
| } |
| |
| // Get the canonical child id to uniquely represent this view in this screen |
| int childId = LauncherModel.getCellLayoutChildId(-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); |
| } |
| |
| /** |
| * Called directly from a CellLayout (not by the framework), after we've been added as a |
| * listener via setOnInterceptTouchEventListener(). This allows us to tell the CellLayout |
| * that it should intercept touch events, which is not something that is normally supported. |
| */ |
| @Override |
| public boolean onTouch(View v, MotionEvent event) { |
| return (mIsSmall || mIsInUnshrinkAnimation); |
| } |
| |
| 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 (ev.getAction() == MotionEvent.ACTION_DOWN) { |
| mXDown = ev.getX(); |
| mYDown = ev.getY(); |
| } |
| |
| return super.onInterceptTouchEvent(ev); |
| } |
| |
| @Override |
| protected void determineScrollingStart(MotionEvent ev) { |
| if (!mIsSmall && !mIsInUnshrinkAnimation) { |
| float deltaX = Math.abs(ev.getX() - mXDown); |
| float deltaY = Math.abs(ev.getY() - mYDown); |
| |
| if (Float.compare(deltaX, 0f) == 0) return; |
| |
| float slope = deltaY / deltaX; |
| float theta = (float) Math.atan(slope); |
| |
| if (deltaX > mTouchSlop || deltaY > mTouchSlop) { |
| cancelCurrentPageLongPress(); |
| } |
| |
| if (theta > MAX_SWIPE_ANGLE) { |
| // Above MAX_SWIPE_ANGLE, we don't want to ever start scrolling the workspace |
| return; |
| } else if (theta > START_DAMPING_TOUCH_SLOP_ANGLE) { |
| // Above START_DAMPING_TOUCH_SLOP_ANGLE and below MAX_SWIPE_ANGLE, we want to |
| // increase the touch slop to make it harder to begin scrolling the workspace. This |
| // results in vertically scrolling widgets to more easily. The higher the angle, the |
| // more we increase touch slop. |
| theta -= START_DAMPING_TOUCH_SLOP_ANGLE; |
| float extraRatio = (float) |
| Math.sqrt((theta / (MAX_SWIPE_ANGLE - START_DAMPING_TOUCH_SLOP_ANGLE))); |
| super.determineScrollingStart(ev, 1 + TOUCH_SLOP_DAMPING_FACTOR * extraRatio); |
| } else { |
| // Below START_DAMPING_TOUCH_SLOP_ANGLE, we don't do anything special |
| super.determineScrollingStart(ev); |
| } |
| } |
| } |
| |
| @Override |
| protected boolean isScrollingIndicatorEnabled() { |
| return mShrinkState != ShrinkState.SPRING_LOADED; |
| } |
| |
| protected void onPageBeginMoving() { |
| super.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); |
| } |
| |
| // Only show page outlines as we pan if we are on large screen |
| if (LauncherApplication.isScreenLarge()) { |
| showOutlines(); |
| } |
| } |
| |
| protected void onPageEndMoving() { |
| super.onPageEndMoving(); |
| |
| clearChildrenCache(); |
| // Hide the outlines, as long as we're not dragging |
| if (!mDragController.dragging()) { |
| // Only hide page outlines as we pan if we are on large screen |
| if (LauncherApplication.isScreenLarge()) { |
| hideOutlines(); |
| } |
| } |
| mOverScrollMaxBackgroundAlpha = 0.0f; |
| mOverScrollPageIndex = -1; |
| |
| if (mDelayedResizeRunnable != null) { |
| mDelayedResizeRunnable.run(); |
| mDelayedResizeRunnable = null; |
| } |
| } |
| |
| @Override |
| protected void notifyPageSwitchListener() { |
| super.notifyPageSwitchListener(); |
| Launcher.setScreen(mCurrentPage); |
| }; |
| |
| // As a ratio of screen height, the total distance we want the parallax effect to span |
| // 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(); |
| DisplayMetrics displayMetrics = new DisplayMetrics(); |
| display.getRealMetrics(displayMetrics); |
| final int maxDim = Math.max(displayMetrics.widthPixels, displayMetrics.heightPixels); |
| final int minDim = Math.min(displayMetrics.widthPixels, displayMetrics.heightPixels); |
| |
| // 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)); |
| new Thread("setWallpaperDimension") { |
| public void run() { |
| mWallpaperManager.suggestDesiredDimensions(mWallpaperWidth, mWallpaperHeight); |
| } |
| }.start(); |
| } |
| |
| 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(); |
| final boolean isStaticWallpaper = (mWallpaperManager.getWallpaperInfo() == null); |
| // 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())); |
| if (!isStaticWallpaper) { |
| wallpaperTravelWidth = mWallpaperWidth; |
| } |
| |
| // 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]) |
| 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; // center it |
| float offset = offsetInDips / (float) mWallpaperWidth; |
| return offset; |
| } |
| private void syncWallpaperOffsetWithScroll() { |
| final boolean enableWallpaperEffects = isHardwareAccelerated(); |
| if (enableWallpaperEffects) { |
| mWallpaperOffset.setFinalX(wallpaperOffsetForCurrentScroll()); |
| } |
| } |
| |
| public void updateWallpaperOffsetImmediately() { |
| mUpdateWallpaperOffsetImmediately = true; |
| } |
| |
| private void updateWallpaperOffsets() { |
| boolean updateNow = false; |
| boolean keepUpdating = true; |
| if (mUpdateWallpaperOffsetImmediately) { |
| updateNow = true; |
| keepUpdating = false; |
| mWallpaperOffset.jumpToFinal(); |
| mUpdateWallpaperOffsetImmediately = false; |
| } else { |
| updateNow = keepUpdating = mWallpaperOffset.computeScrollOffset(); |
| } |
| if (updateNow) { |
| if (mWindowToken != null) { |
| mWallpaperManager.setWallpaperOffsets(mWindowToken, |
| mWallpaperOffset.getCurrX(), mWallpaperOffset.getCurrY()); |
| } |
| } |
| if (keepUpdating) { |
| fastInvalidate(); |
| } |
| } |
| |
| 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(); |
| } |
| } |
| |
| 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(); |
| } |
| } |
| |
| 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 showOutlinesTemporarily() { |
| if (!mIsPageMoving && !isTouchActive()) { |
| snapToPage(mCurrentPage); |
| } |
| } |
| |
| public void setChildrenOutlineAlpha(float alpha) { |
| mChildrenOutlineAlpha = alpha; |
| for (int i = 0; i < getChildCount(); i++) { |
| CellLayout cl = (CellLayout) getChildAt(i); |
| cl.setBackgroundAlpha(alpha); |
| } |
| } |
| |
| public float getChildrenOutlineAlpha() { |
| return mChildrenOutlineAlpha; |
| } |
| |
| void disableBackground() { |
| mDrawBackground = false; |
| } |
| void enableBackground() { |
| mDrawBackground = true; |
| } |
| |
| private void showBackgroundGradientForAllApps() { |
| showBackgroundGradient(); |
| } |
| |
| private void showBackgroundGradient() { |
| if (mBackground == null) return; |
| if (mBackgroundFadeOutAnimation != null) mBackgroundFadeOutAnimation.cancel(); |
| if (mBackgroundFadeInAnimation != null) mBackgroundFadeInAnimation.cancel(); |
| mBackgroundFadeInAnimation = ValueAnimator.ofFloat(getBackgroundAlpha(), 1f); |
| mBackgroundFadeInAnimation.addUpdateListener(new AnimatorUpdateListener() { |
| public void onAnimationUpdate(ValueAnimator animation) { |
| setBackgroundAlpha(((Float) animation.getAnimatedValue()).floatValue()); |
| } |
| }); |
| mBackgroundFadeInAnimation.setInterpolator(new DecelerateInterpolator(1.5f)); |
| mBackgroundFadeInAnimation.setDuration(BACKGROUND_FADE_IN_DURATION); |
| mBackgroundFadeInAnimation.start(); |
| } |
| |
| private void hideBackgroundGradient(float finalAlpha) { |
| if (mBackground == null) return; |
| if (mBackgroundFadeInAnimation != null) mBackgroundFadeInAnimation.cancel(); |
| if (mBackgroundFadeOutAnimation != null) mBackgroundFadeOutAnimation.cancel(); |
| mBackgroundFadeOutAnimation = ValueAnimator.ofFloat(getBackgroundAlpha(), finalAlpha); |
| mBackgroundFadeOutAnimation.addUpdateListener(new AnimatorUpdateListener() { |
| public void onAnimationUpdate(ValueAnimator animation) { |
| setBackgroundAlpha(((Float) animation.getAnimatedValue()).floatValue()); |
| } |
| }); |
| mBackgroundFadeOutAnimation.setInterpolator(new DecelerateInterpolator(1.5f)); |
| mBackgroundFadeOutAnimation.setDuration(BACKGROUND_FADE_OUT_DURATION); |
| mBackgroundFadeOutAnimation.start(); |
| } |
| |
| public void setBackgroundAlpha(float alpha) { |
| if (alpha != mBackgroundAlpha) { |
| 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) { |
| super.screenScrolled(screenCenter); |
| |
| // If the screen is not xlarge, then don't rotate the CellLayouts |
| // NOTE: If we don't update the side pages alpha, then we should not hide the side pages. |
| // see unshrink(). |
| if (!LauncherApplication.isScreenLarge()) return; |
| |
| 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(); |
| mWindowToken = getWindowToken(); |
| computeScroll(); |
| mDragController.setWindowToken(mWindowToken); |
| } |
| |
| protected void onDetachedFromWindow() { |
| mWindowToken = null; |
| } |
| |
| @Override |
| protected void onLayout(boolean changed, int left, int top, int right, int bottom) { |
| if (mFirstLayout && mCurrentPage >= 0 && mCurrentPage < getChildCount()) { |
| mUpdateWallpaperOffsetImmediately = true; |
| } |
| super.onLayout(changed, left, top, right, bottom); |
| |
| // 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; |
| } |
| }); |
| } |
| } |
| |
| @Override |
| protected void onDraw(Canvas canvas) { |
| updateWallpaperOffsets(); |
| |
| // Draw the background gradient if necessary |
| if (mBackground != null && mBackgroundAlpha > 0.0f && mDrawBackground) { |
| int alpha = (int) (mBackgroundAlpha * 255); |
| mBackground.setAlpha(alpha); |
| mBackground.setBounds(mScrollX, 0, mScrollX + getMeasuredWidth(), |
| getMeasuredHeight()); |
| mBackground.draw(canvas); |
| } |
| |
| super.onDraw(canvas); |
| } |
| |
| @Override |
| protected void dispatchDraw(Canvas canvas) { |
| super.dispatchDraw(canvas); |
| |
| if (mInScrollArea && !LauncherApplication.isScreenLarge()) { |
| final int width = getWidth(); |
| final int height = getHeight(); |
| 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_holo); |
| 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_holo); |
| d.setBounds(mScrollX + width - d.getIntrinsicWidth(), padding, mScrollX + width, height - padding); |
| d.draw(canvas); |
| } |
| } |
| } |
| |
| @Override |
| protected boolean onRequestFocusInDescendants(int direction, Rect previouslyFocusedRect) { |
| if (!mLauncher.isAllAppsVisible()) { |
| final Folder openFolder = getOpenFolder(); |
| if (openFolder != null) { |
| return openFolder.requestFocus(direction, previouslyFocusedRect); |
| } else { |
| return super.onRequestFocusInDescendants(direction, previouslyFocusedRect); |
| } |
| } |
| return false; |
| } |
| |
| @Override |
| public int getDescendantFocusability() { |
| if (mIsSmall) { |
| return ViewGroup.FOCUS_BLOCK_DESCENDANTS; |
| } |
| return super.getDescendantFocusability(); |
| } |
| |
| @Override |
| public void addFocusables(ArrayList<View> views, int direction, int focusableMode) { |
| if (!mLauncher.isAllAppsVisible()) { |
| final Folder openFolder = getOpenFolder(); |
| if (openFolder != null) { |
| openFolder.addFocusables(views, direction); |
| } else { |
| super.addFocusables(views, direction, focusableMode); |
| } |
| } |
| } |
| |
| 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); |
| } |
| } |
| |
| protected void enableChildrenLayers(boolean enable) { |
| for (int i = 0; i < getPageCount(); i++) { |
| ((ViewGroup)getChildAt(i)).setChildrenLayersEnabled(enable); |
| } |
| } |
| @Override |
| protected void pageBeginMoving() { |
| enableChildrenLayers(true); |
| super.pageBeginMoving(); |
| } |
| |
| @Override |
| protected void pageEndMoving() { |
| if (!mIsSmall && !mIsInUnshrinkAnimation) { |
| enableChildrenLayers(false); |
| } |
| super.pageEndMoving(); |
| } |
| |
| @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); |
| |
| 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(); |
| |
| // How much the workspace shrinks when we enter all apps or customization mode |
| final float shrinkFactor = res.getInteger(R.integer.config_workspaceShrinkPercent) / 100.0f; |
| |
| // 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) (shrinkFactor * pageWidth); |
| final int scaledPageHeight = (int) (shrinkFactor * 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 y = (isPortrait ? |
| getResources().getDimension(R.dimen.allAppsSmallScreenVerticalMarginPortrait) : |
| getResources().getDimension(R.dimen.allAppsSmallScreenVerticalMarginLandscape)); |
| float finalAlpha = 1.0f; |
| float extraShrinkFactor = 1.0f; |
| |
| if (shrinkState == ShrinkState.BOTTOM_VISIBLE) { |
| y = screenHeight - y - 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) |
| y = screenHeight - y - scaledPageHeight; |
| finalAlpha = 0.0f; |
| } else if (shrinkState == ShrinkState.MIDDLE) { |
| y = screenHeight / 2 - scaledPageHeight / 2; |
| finalAlpha = 1.0f; |
| } |
| |
| int duration; |
| if (shrinkState == ShrinkState.BOTTOM_HIDDEN || shrinkState == ShrinkState.BOTTOM_VISIBLE) { |
| duration = res.getInteger(R.integer.config_appsCustomizeWorkspaceShrinkTime); |
| } 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 x = 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 |
| x -= (pageWidth - scaledPageWidth) / 2.0f; |
| y -= (pageHeight - scaledPageHeight) / 2.0f; |
| |
| if (mAnimator != null) { |
| mAnimator.cancel(); |
| } |
| |
| mAnimator = new AnimatorSet(); |
| |
| final int childCount = getChildCount(); |
| final float[] oldXs = new float[childCount]; |
| final float[] oldYs = new float[childCount]; |
| final float[] oldScaleXs = new float[childCount]; |
| final float[] oldScaleYs = new float[childCount]; |
| final float[] oldBackgroundAlphas = new float[childCount]; |
| final float[] oldAlphas = new float[childCount]; |
| final float[] oldRotationYs = new float[childCount]; |
| final float[] newXs = new float[childCount]; |
| final float[] newYs = new float[childCount]; |
| final float[] newScaleXs = new float[childCount]; |
| final float[] newScaleYs = new float[childCount]; |
| final float[] newBackgroundAlphas = new float[childCount]; |
| final float[] newAlphas = new float[childCount]; |
| final float[] newRotationYs = new float[childCount]; |
| |
| 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); |
| |
| oldAlphas[i] = cl.getAlpha(); |
| newAlphas[i] = finalAlpha; |
| if (animated && (oldAlphas[i] != 0f || newAlphas[i] != 0f)) { |
| // if the CellLayout will be visible during the animation, force building its |
| // hardware layer immediately so we don't see a blip later in the animation |
| cl.buildChildrenLayer(); |
| } |
| if (animated) { |
| oldXs[i] = cl.getX(); |
| oldYs[i] = cl.getY(); |
| oldScaleXs[i] = cl.getScaleX(); |
| oldScaleYs[i] = cl.getScaleY(); |
| oldBackgroundAlphas[i] = cl.getBackgroundAlpha(); |
| oldRotationYs[i] = cl.getRotationY(); |
| newXs[i] = x; |
| newYs[i] = y; |
| newScaleXs[i] = shrinkFactor * rotationScaleX * extraShrinkFactor; |
| newScaleYs[i] = shrinkFactor * rotationScaleY * extraShrinkFactor; |
| newBackgroundAlphas[i] = finalAlpha; |
| newRotationYs[i] = rotation; |
| } else { |
| cl.setX((int)x); |
| cl.setY((int)y); |
| cl.setScaleX(shrinkFactor * rotationScaleX * extraShrinkFactor); |
| cl.setScaleY(shrinkFactor * rotationScaleY * extraShrinkFactor); |
| cl.setBackgroundAlpha(finalAlpha); |
| cl.setAlpha(finalAlpha); |
| cl.setRotationY(rotation); |
| mShrinkAnimationListener.onAnimationEnd(null); |
| } |
| // increment newX for the next screen |
| x += 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(); |
| |
| // on phones, don't scroll the wallpaper horizontally or vertically when switching |
| // to/from all apps |
| final boolean enableWallpaperEffects = |
| isHardwareAccelerated() && LauncherApplication.isScreenLarge(); |
| if (enableWallpaperEffects) { |
| switch (shrinkState) { |
| // animating in |
| 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; |
| } |
| } |
| |
| setLayoutScale(1.0f); |
| if (animated) { |
| if (enableWallpaperEffects) { |
| mWallpaperOffset.setHorizontalCatchupConstant(0.46f); |
| mWallpaperOffset.setOverrideHorizontalCatchupConstant(true); |
| } |
| |
| mSyncWallpaperOffsetWithScroll = false; |
| |
| ValueAnimator animWithInterpolator = |
| ValueAnimator.ofFloat(0f, 1f).setDuration(duration); |
| animWithInterpolator.setInterpolator(mZoomOutInterpolator); |
| |
| final float oldHorizontalWallpaperOffset = getHorizontalWallpaperOffset(); |
| final float oldVerticalWallpaperOffset = getVerticalWallpaperOffset(); |
| final float newHorizontalWallpaperOffset = 0.5f; |
| final float newVerticalWallpaperOffset = wallpaperOffset; |
| animWithInterpolator.addUpdateListener(new LauncherAnimatorUpdateListener() { |
| public void onAnimationUpdate(float a, float b) { |
| if (b == 0f) { |
| // an optimization, and required for correct behavior. |
| return; |
| } |
| invalidate(); |
| if (enableWallpaperEffects) { |
| setHorizontalWallpaperOffset( |
| a * oldHorizontalWallpaperOffset + b * newHorizontalWallpaperOffset); |
| setVerticalWallpaperOffset( |
| a * oldVerticalWallpaperOffset + b * newVerticalWallpaperOffset); |
| } |
| for (int i = 0; i < screenCount; i++) { |
| final CellLayout cl = (CellLayout) getChildAt(i); |
| cl.fastInvalidate(); |
| cl.setFastX(a * oldXs[i] + b * newXs[i]); |
| cl.setFastY(a * oldYs[i] + b * newYs[i]); |
| cl.setFastScaleX(a * oldScaleXs[i] + b * newScaleXs[i]); |
| cl.setFastScaleY(a * oldScaleYs[i] + b * newScaleYs[i]); |
| cl.setFastBackgroundAlpha( |
| a * oldBackgroundAlphas[i] + b * newBackgroundAlphas[i]); |
| cl.setFastAlpha(a * oldAlphas[i] + b * newAlphas[i]); |
| cl.setFastRotationY(a * oldRotationYs[i] + b * newRotationYs[i]); |
| } |
| } |
| }); |
| mAnimator.playTogether(animWithInterpolator); |
| mAnimator.addListener(mShrinkAnimationListener); |
| mAnimator.start(); |
| } else if (enableWallpaperEffects) { |
| setVerticalWallpaperOffset(wallpaperOffset); |
| setHorizontalWallpaperOffset(0.5f); |
| updateWallpaperOffsetImmediately(); |
| } |
| setChildrenDrawnWithCacheEnabled(true); |
| |
| 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(1.8f); |
| |
| 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(); |
| |
| /* |
| * |
| * We call these methods (onDragStartedWithItemSpans/onDragStartedWithSize) whenever we |
| * start a drag in Launcher, regardless of whether the drag has ever entered the Workspace |
| * |
| * These methods mark the appropriate pages as accepting drops (which alters their visual |
| * appearance). |
| * |
| */ |
| public void onDragStartedWithItem(View v) { |
| final Canvas canvas = new Canvas(); |
| |
| // 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(v, canvas, bitmapPadding); |
| } |
| |
| public void onDragStartedWithItemSpans(int spanX, int spanY, Bitmap b) { |
| 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[] size = cl.cellSpansToSize(spanX, spanY); |
| |
| // The outline is used to visualize where the item will land if dropped |
| mDragOutline = createDragOutline(b, canvas, bitmapPadding, size[0], size[1]); |
| } |
| |
| // we call this method whenever a drag and drop in Launcher finishes, even if Workspace was |
| // never dragged over |
| public void onDragStopped(boolean success) { |
| // In the success case, DragController has already called onDragExit() |
| if (!success) { |
| doDragExit(null); |
| } |
| } |
| |
| // 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(mSpringLoadedShrinkFactor); |
| } |
| scrollToNewPageWithoutMovingPages(newCurrentPage); |
| unshrink(true, springLoaded); |
| } |
| } |
| |
| |
| public void enterSpringLoadedDragMode(CellLayout clThatWasClicked) { |
| mShrinkState = ShrinkState.SPRING_LOADED; |
| unshrink(clThatWasClicked, true); |
| } |
| |
| public void exitSpringLoadedDragMode(ShrinkState shrinkState) { |
| shrink(shrinkState); |
| } |
| |
| public void exitWidgetResizeMode() { |
| DragLayer dragLayer = mLauncher.getDragLayer(); |
| dragLayer.clearAllResizeFrames(); |
| } |
| |
| 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 = mSpringLoadedShrinkFactor; |
| 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); |
| |
| final float[] oldTranslationXs = new float[getChildCount()]; |
| final float[] oldTranslationYs = new float[getChildCount()]; |
| final float[] oldScaleXs = new float[getChildCount()]; |
| final float[] oldScaleYs = new float[getChildCount()]; |
| final float[] oldBackgroundAlphas = new float[getChildCount()]; |
| final float[] oldBackgroundAlphaMultipliers = new float[getChildCount()]; |
| final float[] oldAlphas = new float[getChildCount()]; |
| final float[] oldRotationYs = new float[getChildCount()]; |
| final float[] newTranslationXs = new float[getChildCount()]; |
| final float[] newTranslationYs = new float[getChildCount()]; |
| final float[] newScaleXs = new float[getChildCount()]; |
| final float[] newScaleYs = new float[getChildCount()]; |
| final float[] newBackgroundAlphas = new float[getChildCount()]; |
| final float[] newBackgroundAlphaMultipliers = new float[getChildCount()]; |
| final float[] newAlphas = new float[getChildCount()]; |
| final float[] newRotationYs = new float[getChildCount()]; |
| |
| for (int i = 0; i < screenCount; i++) { |
| final CellLayout cl = (CellLayout)getChildAt(i); |
| float finalAlphaValue = 0f; |
| float rotation = 0f; |
| if (LauncherApplication.isScreenLarge()) { |
| finalAlphaValue = (i == mCurrentPage) ? 1.0f : 0.0f; |
| |
| if (i < mCurrentPage) { |
| rotation = WORKSPACE_ROTATION; |
| } else if (i > mCurrentPage) { |
| rotation = -WORKSPACE_ROTATION; |
| } |
| } else { |
| // Don't hide the side panes on the phone if we don't also update the side pages |
| // alpha. See screenScrolled(). |
| finalAlphaValue = 1f; |
| } |
| float finalAlphaMultiplierValue = 1f; |
| |
| float translation = 0f; |
| |
| // If the screen is not xlarge, then don't rotate the CellLayouts |
| // NOTE: If we don't update the side pages alpha, then we should not hide the side |
| // pages. see unshrink(). |
| if (LauncherApplication.isScreenLarge()) { |
| translation = getOffsetXForRotation(rotation, cl.getWidth(), cl.getHeight()); |
| } |
| |
| oldAlphas[i] = cl.getAlpha(); |
| newAlphas[i] = finalAlphaValue; |
| if (animated) { |
| oldTranslationXs[i] = cl.getTranslationX(); |
| oldTranslationYs[i] = cl.getTranslationY(); |
| oldScaleXs[i] = cl.getScaleX(); |
| oldScaleYs[i] = cl.getScaleY(); |
| oldBackgroundAlphas[i] = cl.getBackgroundAlpha(); |
| oldBackgroundAlphaMultipliers[i] = cl.getBackgroundAlphaMultiplier(); |
| oldRotationYs[i] = cl.getRotationY(); |
| |
| newTranslationXs[i] = translation; |
| newTranslationYs[i] = 0f; |
| newScaleXs[i] = finalScaleFactor; |
| newScaleYs[i] = finalScaleFactor; |
| newBackgroundAlphas[i] = finalBackgroundAlpha; |
| newBackgroundAlphaMultipliers[i] = finalAlphaMultiplierValue; |
| newRotationYs[i] = rotation; |
| } 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(); |
| // on phones, don't scroll the wallpaper horizontally or vertically when switching |
| // to/from all apps |
| final boolean enableWallpaperEffects = |
| isHardwareAccelerated() && LauncherApplication.isScreenLarge(); |
| if (enableWallpaperEffects) { |
| switch (mShrinkState) { |
| // animating out |
| 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 ? 0.65f : 0.65f); |
| mWallpaperOffset.setVerticalCatchupConstant(isLandscape ? 0.65f : 0.65f); |
| mWallpaperOffset.setOverrideHorizontalCatchupConstant(true); |
| } |
| break; |
| } |
| } |
| if (animated) { |
| ValueAnimator animWithInterpolator = |
| ValueAnimator.ofFloat(0f, 1f).setDuration(duration); |
| animWithInterpolator.setInterpolator(mZoomInInterpolator); |
| |
| final float oldHorizontalWallpaperOffset = enableWallpaperEffects ? |
| getHorizontalWallpaperOffset() : 0; |
| final float oldVerticalWallpaperOffset = enableWallpaperEffects ? |
| getVerticalWallpaperOffset() : 0; |
| final float newHorizontalWallpaperOffset = enableWallpaperEffects ? |
| wallpaperOffsetForCurrentScroll() : 0; |
| final float newVerticalWallpaperOffset = enableWallpaperEffects ? 0.5f : 0; |
| animWithInterpolator.addUpdateListener(new LauncherAnimatorUpdateListener() { |
| public void onAnimationUpdate(float a, float b) { |
| if (b == 0f) { |
| // an optimization, but not required |
| return; |
| } |
| invalidate(); |
| if (enableWallpaperEffects) { |
| setHorizontalWallpaperOffset(a * oldHorizontalWallpaperOffset |
| + b * newHorizontalWallpaperOffset); |
| setVerticalWallpaperOffset(a * oldVerticalWallpaperOffset |
| + b * newVerticalWallpaperOffset); |
| } |
| for (int i = 0; i < screenCount; i++) { |
| final CellLayout cl = (CellLayout) getChildAt(i); |
| cl.fastInvalidate(); |
| cl.setFastTranslationX( |
| a * oldTranslationXs[i] + b * newTranslationXs[i]); |
| cl.setFastTranslationY( |
| a * oldTranslationYs[i] + b * newTranslationYs[i]); |
| cl.setFastScaleX(a * oldScaleXs[i] + b * newScaleXs[i]); |
| cl.setFastScaleY(a * oldScaleYs[i] + b * newScaleYs[i]); |
| cl.setFastBackgroundAlpha( |
| a * oldBackgroundAlphas[i] + b * newBackgroundAlphas[i]); |
| cl.setBackgroundAlphaMultiplier(a * oldBackgroundAlphaMultipliers[i] + |
| b * newBackgroundAlphaMultipliers[i]); |
| cl.setFastAlpha(a * oldAlphas[i] + b * newAlphas[i]); |
| } |
| } |
| }); |
| |
| ValueAnimator rotationAnim = |
| ValueAnimator.ofFloat(0f, 1f).setDuration(duration); |
| rotationAnim.setInterpolator(new DecelerateInterpolator(2.0f)); |
| rotationAnim.addUpdateListener(new LauncherAnimatorUpdateListener() { |
| public void onAnimationUpdate(float a, float b) { |
| // don't invalidate workspace because we did it above |
| if (b == 0f) { |
| // an optimization, but not required |
| return; |
| } |
| for (int i = 0; i < screenCount; i++) { |
| final CellLayout cl = (CellLayout) getChildAt(i); |
| cl.setFastRotationY(a * oldRotationYs[i] + b * newRotationYs[i]); |
| } |
| } |
| }); |
| |
| mAnimator.playTogether(animWithInterpolator, rotationAnim); |
| // 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 { |
| if (enableWallpaperEffects) { |
| setHorizontalWallpaperOffset(wallpaperOffsetForCurrentScroll()); |
| setVerticalWallpaperOffset(0.5f); |
| updateWallpaperOffsetImmediately(); |
| } |
| } |
| } |
| |
| hideBackgroundGradient(springLoaded ? getResources().getInteger( |
| R.integer.config_appsCustomizeSpringLoadedBgAlpha) / 100f : 0f); |
| } |
| |
| /** |
| * 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); |
| } else if (v instanceof FolderIcon) { |
| clipRect.bottom = getResources().getDimensionPixelSize(R.dimen.folder_preview_size); |
| } |
| |
| // 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(); |
| |
| mLauncher.getDragLayer().getLocationInDragLayer(child, mTempXY); |
| final int dragLayerX = (int) mTempXY[0] + (child.getWidth() - bmpWidth) / 2; |
| final int dragLayerY = (int) mTempXY[1] + (child.getHeight() - bmpHeight) / 2; |
| |
| Rect dragRect = null; |
| if (child instanceof BubbleTextView) { |
| int iconSize = getResources().getDimensionPixelSize(R.dimen.app_icon_size); |
| int top = child.getPaddingTop(); |
| int left = (bmpWidth - iconSize) / 2; |
| int right = left + iconSize; |
| int bottom = top + iconSize; |
| dragRect = new Rect(left, top, right, bottom); |
| } else if (child instanceof FolderIcon) { |
| int previewSize = getResources().getDimensionPixelSize(R.dimen.folder_preview_size); |
| dragRect = new Rect(0, 0, child.getWidth(), previewSize); |
| } |
| |
| mLauncher.lockScreenOrientation(); |
| mDragController.startDrag(b, dragLayerX, dragLayerY, this, child.getTag(), |
| DragController.DRAG_ACTION_MOVE, dragRect); |
| 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]); |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| public boolean acceptDrop(DragObject d) { |
| // If it's an external drop (e.g. from All Apps), check if it should be accepted |
| if (d.dragSource != this) { |
| // Don't accept the drop if we're not over a screen at time of drop |
| if (mDragTargetLayout == null) { |
| return false; |
| } |
| |
| mDragViewVisualCenter = getDragViewVisualCenter(d.x, d.y, d.xOffset, d.yOffset, |
| d.dragView, mDragViewVisualCenter); |
| |
| int spanX = 1; |
| int spanY = 1; |
| View ignoreView = null; |
| if (mDragInfo != null) { |
| final CellLayout.CellInfo dragCellInfo = mDragInfo; |
| spanX = dragCellInfo.spanX; |
| spanY = dragCellInfo.spanY; |
| ignoreView = dragCellInfo.cell; |
| } else { |
| final ItemInfo dragInfo = (ItemInfo) d.dragInfo; |
| spanX = dragInfo.spanX; |
| spanY = dragInfo.spanY; |
| } |
| |
| mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], |
| (int) mDragViewVisualCenter[1], spanX, spanY, mDragTargetLayout, mTargetCell); |
| |
| if (willCreateUserFolder((ItemInfo) d.dragInfo, mDragTargetLayout, mTargetCell, true)) { |
| return true; |
| } |
| if (willAddToExistingUserFolder((ItemInfo) d.dragInfo, mDragTargetLayout, |
| mTargetCell)) { |
| return true; |
| } |
| |
| |
| // 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; |
| } |
| |
| boolean willCreateUserFolder(ItemInfo info, CellLayout target, int[] targetCell, |
| boolean considerTimeout) { |
| View dropOverView = target.getChildAt(targetCell[0], targetCell[1]); |
| |
| boolean hasntMoved = mDragInfo != null |
| && (mDragInfo.cellX == targetCell[0] && mDragInfo.cellY == targetCell[1]); |
| |
| if (dropOverView == null || hasntMoved || (considerTimeout && !mCreateUserFolderOnDrop)) { |
| return false; |
| } |
| |
| boolean aboveShortcut = (dropOverView.getTag() instanceof ShortcutInfo); |
| boolean willBecomeShortcut = |
| (info.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPLICATION || |
| info.itemType == LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT); |
| |
| return (aboveShortcut && willBecomeShortcut); |
| } |
| |
| boolean willAddToExistingUserFolder(Object dragInfo, CellLayout target, int[] targetCell) { |
| View dropOverView = target.getChildAt(targetCell[0], targetCell[1]); |
| if (dropOverView instanceof FolderIcon) { |
| FolderIcon fi = (FolderIcon) dropOverView; |
| if (fi.acceptDrop(dragInfo)) { |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| boolean createUserFolderIfNecessary(View newView, CellLayout target, |
| int[] targetCell, boolean external, DragView dragView, Runnable postAnimationRunnable) { |
| View v = target.getChildAt(targetCell[0], targetCell[1]); |
| boolean hasntMoved = mDragInfo != null |
| && (mDragInfo.cellX == targetCell[0] && mDragInfo.cellY == targetCell[1]); |
| |
| if (v == null || hasntMoved || !mCreateUserFolderOnDrop) return false; |
| mCreateUserFolderOnDrop = false; |
| final int screen = (targetCell == null) ? mDragInfo.screen : indexOfChild(target); |
| |
| boolean aboveShortcut = (v.getTag() instanceof ShortcutInfo); |
| boolean willBecomeShortcut = (newView.getTag() instanceof ShortcutInfo); |
| |
| if (aboveShortcut && willBecomeShortcut) { |
| ShortcutInfo sourceInfo = (ShortcutInfo) newView.getTag(); |
| ShortcutInfo destInfo = (ShortcutInfo) v.getTag(); |
| // if the drag started here, we need to remove it from the workspace |
| if (!external) { |
| int fromScreen = mDragInfo.screen; |
| CellLayout sourceLayout = (CellLayout) getChildAt(fromScreen); |
| sourceLayout.removeView(newView); |
| } |
| |
| Rect folderLocation = new Rect(); |
| mLauncher.getDragLayer().getDescendantRectRelativeToSelf(v, folderLocation); |
| target.removeView(v); |
| |
| FolderIcon fi = mLauncher.addFolder(screen, targetCell[0], targetCell[1]); |
| destInfo.cellX = -1; |
| destInfo.cellY = -1; |
| sourceInfo.cellX = -1; |
| sourceInfo.cellY = -1; |
| |
| fi.performCreateAnimation(destInfo, v, sourceInfo, dragView, folderLocation, |
| postAnimationRunnable); |
| return true; |
| } |
| return false; |
| } |
| |
| boolean addToExistingFolderIfNecessary(View newView, CellLayout target, int[] targetCell, |
| DragObject d, boolean external) { |
| View dropOverView = target.getChildAt(targetCell[0], targetCell[1]); |
| if (dropOverView instanceof FolderIcon) { |
| FolderIcon fi = (FolderIcon) dropOverView; |
| if (fi.acceptDrop(d.dragInfo)) { |
| fi.onDrop(d); |
| |
| // if the drag started here, we need to remove it from the workspace |
| if (!external) { |
| int fromScreen = mDragInfo.screen; |
| CellLayout sourceLayout = (CellLayout) getChildAt(fromScreen); |
| sourceLayout.removeView(newView); |
| } |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| public void onDrop(DragObject d) { |
| mDragViewVisualCenter = getDragViewVisualCenter(d.x, d.y, d.xOffset, d.yOffset, d.dragView, |
| mDragViewVisualCenter); |
| |
| // We want the point to be mapped to the dragTarget. |
| if (mDragTargetLayout != null) { |
| mapPointFromSelfToChild(mDragTargetLayout, mDragViewVisualCenter, null); |
| } |
| |
| // When you are in customization mode and drag to a particular screen, make that the |
| // new current/default screen, so any subsequent taps add items to that screen |
| if (!mLauncher.isAllAppsVisible()) { |
| int dragTargetIndex = indexOfChild(mDragTargetLayout); |
| if (mCurrentPage != dragTargetIndex && (mIsSmall || mIsInUnshrinkAnimation)) { |
| scrollToNewPageWithoutMovingPages(dragTargetIndex); |
| } |
| } |
| CellLayout dropTargetLayout = mDragTargetLayout; |
| |
| if (d.dragSource != this) { |
| final int[] touchXY = new int[] { (int) mDragViewVisualCenter[0], |
| (int) mDragViewVisualCenter[1] }; |
| onDropExternal(touchXY, d.dragInfo, dropTargetLayout, false, d); |
| } else if (mDragInfo != null) { |
| final View cell = mDragInfo.cell; |
| |
| if (dropTargetLayout != null) { |
| // Move internally |
| final int screen = (mTargetCell[0] < 0) ? |
| mDragInfo.screen : indexOfChild(dropTargetLayout); |
| |
| int spanX = mDragInfo != null ? mDragInfo.spanX : 1; |
| int spanY = mDragInfo != null ? mDragInfo.spanY : 1; |
| // First we find the cell nearest to point at which the item is |
| // dropped, without any consideration to whether there is an item there. |
| mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], (int) |
| mDragViewVisualCenter[1], spanX, spanY, dropTargetLayout, mTargetCell); |
| // If the item being dropped is a shortcut and the nearest drop |
| // cell also contains a shortcut, then create a folder with the two shortcuts. |
| boolean dropInscrollArea = mCurrentPage != screen; |
| |
| if (!dropInscrollArea && createUserFolderIfNecessary(cell, dropTargetLayout, |
| mTargetCell, false, d.dragView, null)) { |
| return; |
| } |
| |
| if (addToExistingFolderIfNecessary(cell, dropTargetLayout, mTargetCell, d, false)) { |
| return; |
| } |
| |
| // Aside from the special case where we're dropping a shortcut onto a shortcut, |
| // we need to find the nearest cell location that is vacant |
| mTargetCell = findNearestVacantArea((int) mDragViewVisualCenter[0], |
| (int) mDragViewVisualCenter[1], mDragInfo.spanX, mDragInfo.spanY, cell, |
| dropTargetLayout, mTargetCell); |
| |
| if (dropInscrollArea && mShrinkState != ShrinkState.SPRING_LOADED) { |
| snapToPage(screen); |
| } |
| |
| if (mTargetCell[0] >= 0 && mTargetCell[1] >= 0) { |
| 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)); |
| |
| if (cell instanceof LauncherAppWidgetHostView) { |
| final CellLayout cellLayout = dropTargetLayout; |
| // We post this call so that the widget has a chance to be placed |
| // in its final location |
| |
| final LauncherAppWidgetHostView hostView = (LauncherAppWidgetHostView) cell; |
| AppWidgetProviderInfo pinfo = hostView.getAppWidgetInfo(); |
| if (pinfo.resizeMode != AppWidgetProviderInfo.RESIZE_NONE) { |
| final Runnable resizeRunnable = new Runnable() { |
| public void run() { |
| DragLayer dragLayer = mLauncher.getDragLayer(); |
| dragLayer.addResizeFrame(info, hostView, cellLayout); |
| } |
| }; |
| post(new Runnable() { |
| public void run() { |
| if (!isPageMoving()) { |
| resizeRunnable.run(); |
| } else { |
| mDelayedResizeRunnable = resizeRunnable; |
| } |
| } |
| }); |
| } |
| } |
| |
| 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 |
| mLauncher.getDragLayer().animateViewIntoPosition(d.dragView, cell); |
| parent.onDropChild(cell); |
| } |
| } |
| |
| public void getViewLocationRelativeToSelf(View v, int[] location) { |
| getLocationInWindow(location); |
| int x = location[0]; |
| int y = location[1]; |
| |
| v.getLocationInWindow(location); |
| int vX = location[0]; |
| int vY = location[1]; |
| |
| location[0] = vX - x; |
| location[1] = vY - y; |
| } |
| |
| public void onDragEnter(DragObject d) { |
| if (mDragTargetLayout != null) { |
| mDragTargetLayout.setIsDragOverlapping(false); |
| mDragTargetLayout.onDragExit(); |
| } |
| mDragTargetLayout = getCurrentDropLayout(); |
| mDragTargetLayout.setIsDragOverlapping(true); |
| mDragTargetLayout.onDragEnter(); |
| |
| // Because we don't have space in the Phone UI (the CellLayouts run to the edge) we |
| // don't need to show the outlines |
| if (LauncherApplication.isScreenLarge()) { |
| showOutlines(); |
| } |
| } |
| |
| private void doDragExit(DragObject d) { |
| // Clean up folders |
| cleanupFolderCreation(d); |
| |
| // Reset the scroll area and previous drag target |
| onResetScrollArea(); |
| |
| if (mDragTargetLayout != null) { |
| mDragTargetLayout.setIsDragOverlapping(false); |
| mDragTargetLayout.onDragExit(); |
| } |
| mLastDragOverView = null; |
| |
| if (!mIsPageMoving) { |
| hideOutlines(); |
| } |
| } |
| |
| public void onDragExit(DragObject d) { |
| doDragExit(d); |
| } |
| |
| public DropTarget getDropTargetDelegate(DragObject d) { |
| 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)) { |
| mLauncher.showOutOfSpaceMessage(); |
| 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(new int[] { 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, boolean exact) { |
| // We loop through all the screens (ie CellLayouts) and see which ones overlap |
| // with the item being dragged and then choose the one that's closest to the touch point |
| final int screenCount = getChildCount(); |
| CellLayout bestMatchingScreen = null; |
| float smallestDistSoFar = Float.MAX_VALUE; |
| |
| for (int i = 0; i < screenCount; i++) { |
| CellLayout cl = (CellLayout)getChildAt(i); |
| |
| final float[] touchXy = 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 (!exact && 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; |
| } |
| |
| // This is used to compute the visual center of the dragView. This point is then |
| // used to visualize drop locations and determine where to drop an item. The idea is that |
| // the visual center represents the user's interpretation of where the item is, and hence |
| // is the appropriate point to use when determining drop location. |
| private float[] getDragViewVisualCenter(int x, int y, int xOffset, int yOffset, |
| DragView dragView, float[] recycle) { |
| float res[]; |
| if (recycle == null) { |
| res = new float[2]; |
| } else { |
| res = recycle; |
| } |
| |
| // First off, the drag view has been shifted in a way that is not represented in the |
| // x and y values or the x/yOffsets. Here we account for that shift. |
| x += getResources().getDimensionPixelSize(R.dimen.dragViewOffsetX); |
| y += getResources().getDimensionPixelSize(R.dimen.dragViewOffsetY); |
| |
| // These represent the visual top and left of drag view if a dragRect was provided. |
| // If a dragRect was not provided, then they correspond to the actual view left and |
| // top, as the dragRect is in that case taken to be the entire dragView. |
| // R.dimen.dragViewOffsetY. |
| int left = x - xOffset; |
| int top = y - yOffset; |
| |
| // In order to find the visual center, we shift by half the dragRect |
| res[0] = left + dragView.getDragRegion().width() / 2; |
| res[1] = top + dragView.getDragRegion().height() / 2; |
| |
| return res; |
| } |
| |
| public void onDragOver(DragObject d) { |
| // Skip drag over events while we are dragging over side pages |
| if (mInScrollArea) return; |
| if (mIsInUnshrinkAnimation) return; |
| |
| CellLayout layout; |
| ItemInfo item = (ItemInfo) d.dragInfo; |
| |
| // Ensure that we have proper spans for the item that we are dropping |
| if (item.spanX < 0 || item.spanY < 0) throw new RuntimeException("Improper spans found"); |
| |
| // Identify whether we have dragged over a side page |
| if (mIsSmall) { |
| int left = d.x - d.xOffset; |
| int top = d.y - d.yOffset; |
| layout = findMatchingPageForDragOver(d.dragView, left, top, d.xOffset, d.yOffset, true); |
| if (layout != mDragTargetLayout) { |
| // Cancel all intermediate folder states |
| cleanupFolderCreation(d); |
| |
| if (mDragTargetLayout != null) { |
| mDragTargetLayout.setIsDragOverlapping(false); |
| mDragTargetLayout.onDragExit(); |
| } |
| mDragTargetLayout = layout; |
| if (mDragTargetLayout != null) { |
| mDragTargetLayout.setIsDragOverlapping(true); |
| mDragTargetLayout.onDragEnter(); |
| } else { |
| mLastDragOverView = null; |
| } |
| |
| boolean isInSpringLoadedMode = (mShrinkState == ShrinkState.SPRING_LOADED); |
| if (isInSpringLoadedMode) { |
| mSpringLoadedDragController.setAlarm(mDragTargetLayout); |
| } |
| } |
| } else { |
| layout = getCurrentDropLayout(); |
| if (layout != mDragTargetLayout) { |
| if (mDragTargetLayout != null) { |
| mDragTargetLayout.setIsDragOverlapping(false); |
| mDragTargetLayout.onDragExit(); |
| } |
| mDragTargetLayout = layout; |
| mDragTargetLayout.setIsDragOverlapping(true); |
| mDragTargetLayout.onDragEnter(); |
| } |
| } |
| |
| // Handle the drag over |
| if (mDragTargetLayout != null) { |
| final View child = (mDragInfo == null) ? null : mDragInfo.cell; |
| |
| mDragViewVisualCenter = getDragViewVisualCenter(d.x, d.y, d.xOffset, d.yOffset, |
| d.dragView, mDragViewVisualCenter); |
| |
| // We want the point to be mapped to the dragTarget. |
| mapPointFromSelfToChild(mDragTargetLayout, mDragViewVisualCenter, null); |
| ItemInfo info = (ItemInfo) d.dragInfo; |
| |
| mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], |
| (int) mDragViewVisualCenter[1], 1, 1, mDragTargetLayout, mTargetCell); |
| final View dragOverView = mDragTargetLayout.getChildAt(mTargetCell[0], |
| mTargetCell[1]); |
| |
| boolean userFolderPending = willCreateUserFolder(info, mDragTargetLayout, |
| mTargetCell, false); |
| boolean isOverFolder = dragOverView instanceof FolderIcon; |
| if (dragOverView != mLastDragOverView) { |
| cancelFolderCreation(); |
| if (mLastDragOverView != null && mLastDragOverView instanceof FolderIcon) { |
| ((FolderIcon) mLastDragOverView).onDragExit(d.dragInfo); |
| } |
| } |
| |
| if (userFolderPending && dragOverView != mLastDragOverView) { |
| mFolderCreationAlarm.setOnAlarmListener(new |
| FolderCreationAlarmListener(mDragTargetLayout, mTargetCell[0], mTargetCell[1])); |
| mFolderCreationAlarm.setAlarm(FOLDER_CREATION_TIMEOUT); |
| } |
| |
| if (dragOverView != mLastDragOverView && isOverFolder) { |
| ((FolderIcon) dragOverView).onDragEnter(d.dragInfo); |
| if (mDragTargetLayout != null) { |
| mDragTargetLayout.clearDragOutlines(); |
| } |
| } |
| mLastDragOverView = dragOverView; |
| |
| if (!mCreateUserFolderOnDrop && !isOverFolder) { |
| mDragTargetLayout.visualizeDropLocation(child, mDragOutline, |
| (int) mDragViewVisualCenter[0], (int) mDragViewVisualCenter[1], |
| item.spanX, item.spanY); |
| } |
| } |
| } |
| |
| private void cleanupFolderCreation(DragObject d) { |
| if (mDragFolderRingAnimator != null && mCreateUserFolderOnDrop) { |
| mDragFolderRingAnimator.animateToNaturalState(); |
| } |
| if (mLastDragOverView != null && mLastDragOverView instanceof FolderIcon) { |
| if (d != null) { |
| ((FolderIcon) mLastDragOverView).onDragExit(d.dragInfo); |
| } |
| } |
| mFolderCreationAlarm.cancelAlarm(); |
| } |
| |
| private void cancelFolderCreation() { |
| if (mDragFolderRingAnimator != null && mCreateUserFolderOnDrop) { |
| mDragFolderRingAnimator.animateToNaturalState(); |
| } |
| mCreateUserFolderOnDrop = false; |
| mFolderCreationAlarm.cancelAlarm(); |
| } |
| |
| class FolderCreationAlarmListener implements OnAlarmListener { |
| CellLayout layout; |
| int cellX; |
| int cellY; |
| |
| public FolderCreationAlarmListener(CellLayout layout, int cellX, int cellY) { |
| this.layout = layout; |
| this.cellX = cellX; |
| this.cellY = cellY; |
| } |
| |
| public void onAlarm(Alarm alarm) { |
| if (mDragFolderRingAnimator == null) { |
| mDragFolderRingAnimator = new FolderRingAnimator(mLauncher, null); |
| } |
| mDragFolderRingAnimator.setCell(cellX, cellY); |
| mDragFolderRingAnimator.setCellLayout(layout); |
| mDragFolderRingAnimator.animateToAcceptState(); |
| layout.showFolderAccept(mDragFolderRingAnimator); |
| layout.clearDragOutlines(); |
| mCreateUserFolderOnDrop = true; |
| } |
| } |
| |
| @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(dragInfo.dropPos, (ItemInfo) dragInfo, (CellLayout) layout, false); |
| return true; |
| } |
| mLauncher.showOutOfSpaceMessage(); |
| return false; |
| } |
| |
| private void onDropExternal(int[] touchXY, Object dragInfo, |
| CellLayout cellLayout, boolean insertAtFirst) { |
| onDropExternal(touchXY, dragInfo, cellLayout, insertAtFirst, null); |
| } |
| |
| /** |
| * Drop an item that didn't originate on one of the workspace screens. |
| * It may have come from Launcher (e.g. from all apps or customize), or it may have |
| * come from another app altogether. |
| * |
| * NOTE: This can also be called when we are outside of a drag event, when we want |
| * to add an item to one of the workspace screens. |
| */ |
| private void onDropExternal(final int[] touchXY, final Object dragInfo, |
| final CellLayout cellLayout, boolean insertAtFirst, DragObject d) { |
| final Runnable exitSpringLoadedRunnable = new Runnable() { |
| @Override |
| public void run() { |
| mLauncher.exitSpringLoadedDragModeDelayed(false); |
| } |
| }; |
| final int screen = indexOfChild(cellLayout); |
| if (screen != mCurrentPage && mShrinkState != ShrinkState.SPRING_LOADED) { |
| snapToPage(screen); |
| } |
| if (dragInfo instanceof PendingAddItemInfo) { |
| final PendingAddItemInfo info = (PendingAddItemInfo) dragInfo; |
| mLauncher.getDragLayer().animateViewOut(d.dragView, new Runnable() { |
| @Override |
| public void run() { |
| // When dragging and dropping from customization tray, we deal with creating |
| // widgets/shortcuts/folders in a slightly different way |
| switch (info.itemType) { |
| case LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET: |
| mLauncher.addAppWidgetFromDrop((PendingAddWidgetInfo) info, 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_FOLDER: |
| view = FolderIcon.fromXml(R.layout.folder_icon, mLauncher, cellLayout, |
| (FolderInfo) info, mIconCache); |
| break; |
| default: |
| throw new IllegalStateException("Unknown item type: " + info.itemType); |
| } |
| |
| int spanX = 1; |
| int spanY = 1; |
| if (mDragInfo != null) { |
| spanX = mDragInfo.spanX; |
| spanY = mDragInfo.spanY; |
| } else { |
| spanX = info.spanX; |
| spanY = info.spanY; |
| } |
| |
| // First we find the cell nearest to point at which the item is |
| // dropped, without any consideration to whether there is an item there. |
| if (touchXY != null) { |
| mTargetCell = findNearestArea((int) touchXY[0], (int) touchXY[1], spanX, spanY, |
| cellLayout, mTargetCell); |
| d.postAnimationRunnable = exitSpringLoadedRunnable; |
| if (createUserFolderIfNecessary(view, cellLayout, mTargetCell, true, d.dragView, |
| d.postAnimationRunnable)) { |
| return; |
| } |
| if (addToExistingFolderIfNecessary(view, cellLayout, mTargetCell, d, true)) { |
| return; |
| } |
| } |
| |
| if (touchXY != null) { |
| // when dragging and dropping, just find the closest free spot |
| mTargetCell = findNearestVacantArea(touchXY[0], touchXY[1], 1, 1, null, |
| cellLayout, mTargetCell); |
| } else { |
| cellLayout.findCellForSpan(mTargetCell, 1, 1); |
| } |
| addInScreen(view, indexOfChild(cellLayout), mTargetCell[0], |
| mTargetCell[1], info.spanX, info.spanY, insertAtFirst); |
| cellLayout.onDropChild(view); |
| cellLayout.animateDrop(); |
| CellLayout.LayoutParams lp = (CellLayout.LayoutParams) view.getLayoutParams(); |
| cellLayout.getChildrenLayout().measureChild(view); |
| |
| LauncherModel.addOrMoveItemInDatabase(mLauncher, info, |
| LauncherSettings.Favorites.CONTAINER_DESKTOP, screen, |
| lp.cellX, lp.cellY); |
| |
| if (d.dragView != null) { |
| mLauncher.getDragLayer().animateViewIntoPosition(d.dragView, view, |
| exitSpringLoadedRunnable); |
| } |
| } |
| } |
| |
| /** |
| * Return the current {@link CellLayout}, correctly picking the destination |
| * screen while a scroll is in progress. |
| */ |
| public CellLayout getCurrentDropLayout() { |
| return (CellLayout) getChildAt(mNextPage == INVALID_PAGE ? mCurrentPage : mNextPage); |
| } |
| |
| /** |
| * Return the current CellInfo describing our current drag; this method exists |
| * so that Launcher can sync this object with the correct info when the activity is created/ |
| * destroyed |
| * |
| */ |
| public CellLayout.CellInfo getDragInfo() { |
| return mDragInfo; |
| } |
| |
| /** |
| * Calculate the nearest cell where the given object would be dropped. |
| * |
| * pixelX and pixelY should be in the coordinate system of layout |
| */ |
| private int[] findNearestVacantArea(int pixelX, int pixelY, |
| int spanX, int spanY, View ignoreView, CellLayout layout, int[] recycle) { |
| return layout.findNearestVacantArea( |
| pixelX, pixelY, spanX, spanY, ignoreView, recycle); |
| } |
| |
| /** |
| * Calculate the nearest cell where the given object would be dropped. |
| * |
| * pixelX and pixelY should be in the coordinate system of layout |
| */ |
| private int[] findNearestArea(int pixelX, int pixelY, |
| int spanX, int spanY, CellLayout layout, int[] recycle) { |
| return layout.findNearestArea( |
| pixelX, pixelY, spanX, spanY, recycle); |
| } |
| |
| void setup(Launcher launcher, DragController dragController) { |
| mLauncher = launcher; |
| mSpringLoadedDragController = new SpringLoadedDragController(mLauncher); |
| mDragController = dragController; |
| } |
| |
| /** |
| * Called at the end of a drag which originated on the workspace. |
| */ |
| public void onDropCompleted(View target, DragObject d, 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(null); |
| ((CellLayout) getChildAt(mDragInfo.screen)).onDropChild(mDragInfo.cell); |
| } |
| 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(); |
| } |
| Folder openFolder = getOpenFolder(); |
| if (openFolder != null) { |
| openFolder.completeDragExit(); |
| } |
| } |
| |
| @Override |
| public void scrollRight() { |
| if (!mIsSmall && !mIsInUnshrinkAnimation) { |
| super.scrollRight(); |
| } |
| Folder openFolder = getOpenFolder(); |
| if (openFolder != null) { |
| openFolder.completeDragExit(); |
| } |
| } |
| |
| @Override |
| public void onEnterScrollArea(int direction) { |
| if (!mIsSmall && !mIsInUnshrinkAnimation) { |
| mInScrollArea = true; |
| |
| final int page = mCurrentPage + (direction == DragController.SCROLL_LEFT ? -1 : 1); |
| final CellLayout layout = (CellLayout) getChildAt(page); |
| cancelFolderCreation(); |
| |
| if (layout != null) { |
| // Exit the current layout and mark the overlapping layout |
| if (mDragTargetLayout != null) { |
| mDragTargetLayout.setIsDragOverlapping(false); |
| mDragTargetLayout.onDragExit(); |
| } |
| mDragTargetLayout = layout; |
| mDragTargetLayout.setIsDragOverlapping(true); |
| |
| // Workspace is responsible for drawing the edge glow on adjacent pages, |
| // so we need to redraw the workspace when this may have changed. |
| invalidate(); |
| } |
| } |
| } |
| |
| @Override |
| public void onExitScrollArea() { |
| if (mInScrollArea) { |
| if (mDragTargetLayout != null) { |
| // Unmark the overlapping layout and re-enter the current layout |
| mDragTargetLayout.setIsDragOverlapping(false); |
| mDragTargetLayout = getCurrentDropLayout(); |
| mDragTargetLayout.onDragEnter(); |
| |
| // Workspace is responsible for drawing the edge glow on adjacent pages, |
| // so we need to redraw the workspace when this may have changed. |
| invalidate(); |
| } |
| mInScrollArea = false; |
| } |
| } |
| |
| private void onResetScrollArea() { |
| if (mDragTargetLayout != null) { |
| // Unmark the overlapping layout |
| mDragTargetLayout.setIsDragOverlapping(false); |
| |
| // Workspace is responsible for drawing the edge glow on adjacent pages, |
| // so we need to redraw the workspace when this may have changed. |
| invalidate(); |
| } |
| mInScrollArea = false; |
| } |
| |
| 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 clearDropTargets() { |
| final int screenCount = getChildCount(); |
| |
| for (int i = 0; i < screenCount; i++) { |
| final CellLayout layoutParent = (CellLayout) getChildAt(i); |
| final ViewGroup layout = layoutParent.getChildrenLayout(); |
| int childCount = layout.getChildCount(); |
| for (int j = 0; j < childCount; j++) { |
| View v = layout.getChildAt(j); |
| if (v instanceof DropTarget) { |
| mDragController.removeDropTarget((DropTarget) v); |
| } |
| } |
| } |
| } |
| |
| void removeItems(final ArrayList<ApplicationInfo> apps) { |
| final int screenCount = getChildCount(); |
| 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 FolderInfo) { |
| final FolderInfo info = (FolderInfo) tag; |
| final ArrayList<ShortcutInfo> contents = info.contents; |
| final int contentsCount = contents.size(); |
| final ArrayList<ShortcutInfo> appsToRemoveFromFolder = |
| new ArrayList<ShortcutInfo>(); |
| |
| for (int k = 0; k < contentsCount; k++) { |
| final ShortcutInfo appInfo = contents.get(k); |
| final Intent intent = appInfo.intent; |
| final ComponentName name = intent.getComponent(); |
| |
| if (Intent.ACTION_MAIN.equals(intent.getAction()) && name != null) { |
| for (String packageName: packageNames) { |
| if (packageName.equals(name.getPackageName())) { |
| appsToRemoveFromFolder.add(appInfo); |
| } |
| } |
| } |
| } |
| for (ShortcutInfo item: appsToRemoveFromFolder) { |
| info.remove(item); |
| LauncherModel.deleteItemFromDatabase(mLauncher, item); |
| } |
| } else if (tag instanceof LauncherAppWidgetInfo) { |
| final LauncherAppWidgetInfo info = (LauncherAppWidgetInfo) tag; |
| final 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(); |
| } |
| |
| @Override |
| public void syncPages() { |
| } |
| |
| @Override |
| public void syncPageItems(int page) { |
| } |
| |
| @Override |
| protected String getCurrentPageDescription() { |
| int page = (mNextPage != INVALID_PAGE) ? mNextPage : mCurrentPage; |
| return String.format(mContext.getString(R.string.workspace_scroll_format), |
| page + 1, getChildCount()); |
| } |
| |
| public void getLocationInDragLayer(int[] loc) { |
| mLauncher.getDragLayer().getLocationInDragLayer(this, loc); |
| } |
| } |