| /* |
| * Copyright (C) 2008 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package com.android.launcher2; |
| |
| import com.android.launcher.R; |
| |
| import android.animation.Animator; |
| import android.animation.Animator.AnimatorListener; |
| import android.animation.AnimatorSet; |
| import android.animation.ObjectAnimator; |
| import android.animation.PropertyValuesHolder; |
| import android.app.WallpaperManager; |
| import android.appwidget.AppWidgetManager; |
| import android.appwidget.AppWidgetProviderInfo; |
| import android.content.ComponentName; |
| import android.content.Context; |
| import android.content.Intent; |
| import android.content.pm.PackageManager; |
| import android.content.pm.ProviderInfo; |
| import android.content.res.Resources; |
| import android.content.res.TypedArray; |
| import android.graphics.Camera; |
| import android.graphics.Canvas; |
| import android.graphics.Color; |
| import android.graphics.Matrix; |
| import android.graphics.Rect; |
| import android.graphics.drawable.Drawable; |
| import android.net.Uri; |
| import android.os.IBinder; |
| import android.os.Parcelable; |
| import android.util.AttributeSet; |
| import android.util.Log; |
| import android.view.MotionEvent; |
| import android.view.View; |
| import android.widget.TextView; |
| |
| import java.util.ArrayList; |
| import java.util.HashSet; |
| |
| /** |
| * The workspace is a wide area with a wallpaper and a finite number of pages. |
| * Each page contains a number of icons, folders or widgets the user can |
| * interact with. A workspace is meant to be used with a fixed width only. |
| */ |
| public class Workspace extends SmoothPagedView |
| implements DropTarget, DragSource, DragScroller, View.OnTouchListener { |
| @SuppressWarnings({"UnusedDeclaration"}) |
| private static final String TAG = "Launcher.Workspace"; |
| |
| // This is how much the workspace shrinks when we enter all apps or |
| // customization mode |
| private static final float SHRINK_FACTOR = 0.16f; |
| |
| // 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 = 0.97f; |
| private static final float EXTRA_SCALE_FACTOR_1 = 1.0f; |
| private static final float EXTRA_SCALE_FACTOR_2 = 1.08f; |
| |
| private static final int BACKGROUND_FADE_OUT_DELAY = 300; |
| private static final int BACKGROUND_FADE_OUT_DURATION = 300; |
| private static final int BACKGROUND_FADE_IN_DURATION = 100; |
| |
| static final int SCROLL_RIGHT = 0; |
| static final int SCROLL_LEFT = 1; |
| |
| // These animators are used to fade the |
| private ObjectAnimator<Float> mBackgroundFadeIn; |
| private ObjectAnimator<Float> mBackgroundFadeOut; |
| private float mBackgroundAlpha = 0; |
| |
| private enum ShrinkPosition { SHRINK_TO_TOP, SHRINK_TO_MIDDLE, SHRINK_TO_BOTTOM }; |
| |
| private final WallpaperManager mWallpaperManager; |
| |
| private int mDefaultPage; |
| |
| private boolean mWaitingToShrinkToBottom = false; |
| |
| /** |
| * CellInfo for the cell that is currently being dragged |
| */ |
| private CellLayout.CellInfo mDragInfo; |
| |
| /** |
| * Target drop area calculated during last acceptDrop call. |
| */ |
| private int[] mTargetCell = null; |
| |
| /** |
| * The CellLayout that is currently being dragged over |
| */ |
| private CellLayout mDragTargetLayout = null; |
| |
| private Launcher mLauncher; |
| private IconCache mIconCache; |
| private DragController mDragController; |
| |
| private int[] mTempCell = new int[2]; |
| private int[] mTempEstimate = new int[2]; |
| private float[] mTempOriginXY = new float[2]; |
| private float[] mTempDragCoordinates = new float[2]; |
| private float[] mTempDragBottomRightCoordinates = new float[2]; |
| private Matrix mTempInverseMatrix = new Matrix(); |
| |
| private static final int DEFAULT_CELL_COUNT_X = 4; |
| private static final int DEFAULT_CELL_COUNT_Y = 4; |
| |
| private Drawable mPreviousIndicator; |
| private Drawable mNextIndicator; |
| |
| // State variable that indicated whether the pages are small (ie when you're |
| // in all apps or customize mode) |
| private boolean mIsSmall; |
| private AnimatorListener mUnshrinkAnimationListener; |
| |
| /** |
| * Used to inflate the Workspace from XML. |
| * |
| * @param context The application's context. |
| * @param attrs The attributes set containing the Workspace's customization values. |
| */ |
| public Workspace(Context context, AttributeSet attrs) { |
| this(context, attrs, 0); |
| } |
| |
| /** |
| * Used to inflate the Workspace from XML. |
| * |
| * @param context The application's context. |
| * @param attrs The attributes set containing the Workspace's customization values. |
| * @param defStyle Unused. |
| */ |
| public Workspace(Context context, AttributeSet attrs, int defStyle) { |
| super(context, attrs, defStyle); |
| mContentIsRefreshable = false; |
| |
| if (!LauncherApplication.isScreenXLarge()) { |
| mFadeInAdjacentScreens = false; |
| } |
| |
| mWallpaperManager = WallpaperManager.getInstance(context); |
| |
| TypedArray a = context.obtainStyledAttributes(attrs, |
| R.styleable.Workspace, defStyle, 0); |
| int cellCountX = a.getInt(R.styleable.Workspace_cellCountX, DEFAULT_CELL_COUNT_X); |
| int cellCountY = a.getInt(R.styleable.Workspace_cellCountY, DEFAULT_CELL_COUNT_Y); |
| mDefaultPage = a.getInt(R.styleable.Workspace_defaultScreen, 1); |
| a.recycle(); |
| |
| LauncherModel.updateWorkspaceLayoutCells(cellCountX, cellCountY); |
| setHapticFeedbackEnabled(false); |
| |
| initWorkspace(); |
| } |
| |
| /** |
| * Initializes various states for this workspace. |
| */ |
| protected void initWorkspace() { |
| Context context = getContext(); |
| mCurrentPage = mDefaultPage; |
| Launcher.setScreen(mCurrentPage); |
| LauncherApplication app = (LauncherApplication)context.getApplicationContext(); |
| mIconCache = app.getIconCache(); |
| |
| mUnshrinkAnimationListener = new AnimatorListener() { |
| public void onAnimationStart(Animator animation) {} |
| public void onAnimationEnd(Animator animation) { |
| mIsSmall = false; |
| } |
| public void onAnimationCancel(Animator animation) {} |
| public void onAnimationRepeat(Animator animation) {} |
| }; |
| |
| mSnapVelocity = 600; |
| } |
| |
| @Override |
| protected int getScrollMode() { |
| if (LauncherApplication.isScreenXLarge()) { |
| return SmoothPagedView.QUINTIC_MODE; |
| } else { |
| return SmoothPagedView.OVERSHOOT_MODE; |
| } |
| } |
| |
| @Override |
| public void addView(View child, int index, LayoutParams params) { |
| if (!(child instanceof CellLayout)) { |
| throw new IllegalArgumentException("A Workspace can only have CellLayout children."); |
| } |
| super.addView(child, index, params); |
| } |
| |
| @Override |
| public void addView(View child) { |
| if (!(child instanceof CellLayout)) { |
| throw new IllegalArgumentException("A Workspace can only have CellLayout children."); |
| } |
| super.addView(child); |
| } |
| |
| @Override |
| public void addView(View child, int index) { |
| if (!(child instanceof CellLayout)) { |
| throw new IllegalArgumentException("A Workspace can only have CellLayout children."); |
| } |
| super.addView(child, index); |
| } |
| |
| @Override |
| public void addView(View child, int width, int height) { |
| if (!(child instanceof CellLayout)) { |
| throw new IllegalArgumentException("A Workspace can only have CellLayout children."); |
| } |
| super.addView(child, width, height); |
| } |
| |
| @Override |
| public void addView(View child, LayoutParams params) { |
| if (!(child instanceof CellLayout)) { |
| throw new IllegalArgumentException("A Workspace can only have CellLayout children."); |
| } |
| super.addView(child, params); |
| } |
| |
| /** |
| * @return The open folder on the current screen, or null if there is none |
| */ |
| Folder getOpenFolder() { |
| CellLayout currentPage = (CellLayout) getChildAt(mCurrentPage); |
| int count = currentPage.getChildCount(); |
| for (int i = 0; i < count; i++) { |
| View child = currentPage.getChildAt(i); |
| if (child instanceof Folder) { |
| Folder folder = (Folder) child; |
| if (folder.getInfo().opened) |
| return folder; |
| } |
| } |
| return null; |
| } |
| |
| ArrayList<Folder> getOpenFolders() { |
| final int screenCount = getChildCount(); |
| ArrayList<Folder> folders = new ArrayList<Folder>(screenCount); |
| |
| for (int screen = 0; screen < screenCount; screen++) { |
| CellLayout currentPage = (CellLayout) getChildAt(screen); |
| int count = currentPage.getChildCount(); |
| for (int i = 0; i < count; i++) { |
| View child = currentPage.getChildAt(i); |
| if (child instanceof Folder) { |
| Folder folder = (Folder) child; |
| if (folder.getInfo().opened) |
| folders.add(folder); |
| break; |
| } |
| } |
| } |
| |
| return folders; |
| } |
| |
| boolean isDefaultPageShowing() { |
| return mCurrentPage == mDefaultPage; |
| } |
| |
| /** |
| * Sets the current screen. |
| * |
| * @param currentPage |
| */ |
| @Override |
| void setCurrentPage(int currentPage) { |
| super.setCurrentPage(currentPage); |
| updateWallpaperOffset(mScrollX); |
| } |
| |
| /** |
| * Adds the specified child in the specified screen. The position and dimension of |
| * the child are defined by x, y, spanX and spanY. |
| * |
| * @param child The child to add in one of the workspace's screens. |
| * @param screen The screen in which to add the child. |
| * @param x The X position of the child in the screen's grid. |
| * @param y The Y position of the child in the screen's grid. |
| * @param spanX The number of cells spanned horizontally by the child. |
| * @param spanY The number of cells spanned vertically by the child. |
| */ |
| void addInScreen(View child, int screen, int x, int y, int spanX, int spanY) { |
| addInScreen(child, screen, x, y, spanX, spanY, false); |
| } |
| |
| void addInFullScreen(View child, int screen) { |
| addInScreen(child, screen, 0, 0, -1, -1); |
| } |
| |
| /** |
| * Adds the specified child in the specified screen. The position and dimension of |
| * the child are defined by x, y, spanX and spanY. |
| * |
| * @param child The child to add in one of the workspace's screens. |
| * @param screen The screen in which to add the child. |
| * @param x The X position of the child in the screen's grid. |
| * @param y The Y position of the child in the screen's grid. |
| * @param spanX The number of cells spanned horizontally by the child. |
| * @param spanY The number of cells spanned vertically by the child. |
| * @param insert When true, the child is inserted at the beginning of the children list. |
| */ |
| void addInScreen(View child, int screen, int x, int y, int spanX, int spanY, boolean insert) { |
| if (screen < 0 || screen >= getChildCount()) { |
| Log.e(TAG, "The screen must be >= 0 and < " + getChildCount() |
| + " (was " + screen + "); skipping child"); |
| return; |
| } |
| |
| final CellLayout group = (CellLayout) getChildAt(screen); |
| CellLayout.LayoutParams lp = (CellLayout.LayoutParams) child.getLayoutParams(); |
| if (lp == null) { |
| lp = new CellLayout.LayoutParams(x, y, spanX, spanY); |
| } else { |
| lp.cellX = x; |
| lp.cellY = y; |
| lp.cellHSpan = spanX; |
| lp.cellVSpan = spanY; |
| } |
| |
| // Get the canonical child id to uniquely represent this view in this screen |
| int childId = LauncherModel.getCellLayoutChildId(-1, screen, x, y, spanX, spanY); |
| if (!group.addViewToCellLayout(child, insert ? 0 : -1, childId, lp)) { |
| // 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); |
| } |
| } |
| |
| public boolean onTouch(View v, MotionEvent event) { |
| // this is an intercepted event being forwarded from a cell layout |
| if (mIsSmall) { |
| mLauncher.onWorkspaceClick((CellLayout) v); |
| return true; |
| } |
| return false; |
| } |
| |
| @Override |
| public boolean dispatchUnhandledMove(View focused, int direction) { |
| if (mIsSmall) { |
| // when the home screens are shrunken, shouldn't allow side-scrolling |
| return false; |
| } |
| return super.dispatchUnhandledMove(focused, direction); |
| } |
| |
| @Override |
| public boolean onInterceptTouchEvent(MotionEvent ev) { |
| if (mIsSmall) { |
| // when the home screens are shrunken, shouldn't allow side-scrolling |
| return false; |
| } |
| return super.onInterceptTouchEvent(ev); |
| } |
| |
| protected void pageBeginMoving() { |
| if (mNextPage != INVALID_PAGE) { |
| // we're snapping to a particular screen |
| enableChildrenCache(mCurrentPage, mNextPage); |
| } else { |
| // this is when user is actively dragging a particular screen, they might |
| // swipe it either left or right (but we won't advance by more than one screen) |
| enableChildrenCache(mCurrentPage - 1, mCurrentPage + 1); |
| } |
| showOutlines(); |
| } |
| |
| protected void pageEndMoving() { |
| clearChildrenCache(); |
| hideOutlines(); |
| } |
| |
| @Override |
| protected void notifyPageSwitchListener() { |
| super.notifyPageSwitchListener(); |
| |
| if (mPreviousIndicator != null) { |
| // if we know the next page, we show the indication for it right away; it looks |
| // weird if the indicators are lagging |
| int page = mNextPage; |
| if (page == INVALID_PAGE) { |
| page = mCurrentPage; |
| } |
| mPreviousIndicator.setLevel(page); |
| mNextIndicator.setLevel(page); |
| } |
| Launcher.setScreen(mCurrentPage); |
| }; |
| |
| private void updateWallpaperOffset() { |
| updateWallpaperOffset(getChildAt(getChildCount() - 1).getRight() - (mRight - mLeft)); |
| } |
| |
| private void updateWallpaperOffset(int scrollRange) { |
| final boolean isStaticWallpaper = (mWallpaperManager != null) && |
| (mWallpaperManager.getWallpaperInfo() == null); |
| if (LauncherApplication.isScreenXLarge() && !isStaticWallpaper) { |
| IBinder token = getWindowToken(); |
| if (token != null) { |
| mWallpaperManager.setWallpaperOffsetSteps(1.0f / (getChildCount() - 1), 0 ); |
| mWallpaperManager.setWallpaperOffsets(getWindowToken(), |
| Math.max(0.f, Math.min(mScrollX/(float)scrollRange, 1.f)), 0); |
| } |
| } |
| } |
| |
| private float getScaleXForRotation(float degrees) { |
| return (float) (1.0f / Math.cos(Math.PI * degrees / 180.0f)); |
| } |
| |
| public void showOutlines() { |
| if (mBackgroundFadeOut != null) mBackgroundFadeOut.cancel(); |
| if (mBackgroundFadeIn != null) mBackgroundFadeIn.cancel(); |
| mBackgroundFadeIn = new ObjectAnimator<Float>(BACKGROUND_FADE_IN_DURATION, this, |
| new PropertyValuesHolder<Float>("backgroundAlpha", 1.0f)); |
| mBackgroundFadeIn.start(); |
| } |
| |
| public void hideOutlines() { |
| if (mBackgroundFadeIn != null) mBackgroundFadeIn.cancel(); |
| if (mBackgroundFadeOut != null) mBackgroundFadeOut.cancel(); |
| mBackgroundFadeOut = new ObjectAnimator<Float>(BACKGROUND_FADE_OUT_DURATION, this, |
| new PropertyValuesHolder<Float>("backgroundAlpha", 0.0f)); |
| mBackgroundFadeOut.setStartDelay(BACKGROUND_FADE_OUT_DELAY); |
| mBackgroundFadeOut.start(); |
| } |
| |
| public void setBackgroundAlpha(float alpha) { |
| mBackgroundAlpha = alpha; |
| for (int i = 0; i < getChildCount(); i++) { |
| CellLayout cl = (CellLayout) getChildAt(i); |
| cl.setBackgroundAlpha(alpha); |
| } |
| } |
| |
| public float getBackgroundAlpha() { |
| return mBackgroundAlpha; |
| } |
| |
| @Override |
| protected void screenScrolled(int screenCenter) { |
| View cur = getChildAt(mCurrentPage); |
| View toRight = getChildAt(mCurrentPage + 1); |
| View toLeft = getChildAt(mCurrentPage - 1); |
| |
| for (int i = 0; i < mCurrentPage - 1; i++) { |
| View v = getChildAt(i); |
| if (v != null) { |
| v.setRotationY(WORKSPACE_ROTATION); |
| v.setScaleX(getScaleXForRotation(WORKSPACE_ROTATION)); |
| } |
| } |
| for (int i = mCurrentPage + 1; i < getChildCount(); i++) { |
| View v = getChildAt(i); |
| if (v != null) { |
| v.setRotationY(-WORKSPACE_ROTATION); |
| v.setScaleX(getScaleXForRotation(-WORKSPACE_ROTATION)); |
| } |
| } |
| |
| int pageWidth = cur.getMeasuredWidth(); |
| int delta = screenCenter - (mCurrentPage * pageWidth + pageWidth / 2 + |
| getRelativeChildOffset(0)); |
| |
| float scrollProgress = Math.abs(delta/(pageWidth*1.0f)); |
| int scrollDirection = delta > 0 ? SCROLL_LEFT : SCROLL_RIGHT; |
| |
| float rotation; |
| |
| if (scrollDirection == SCROLL_RIGHT) { |
| rotation = -scrollProgress * WORKSPACE_ROTATION; |
| cur.setRotationY(rotation); |
| cur.setScaleX(getScaleXForRotation(rotation)); |
| if (toLeft != null) { |
| rotation = WORKSPACE_ROTATION * (1 - scrollProgress); |
| toLeft.setRotationY(rotation); |
| toLeft.setScaleX(getScaleXForRotation(rotation)); |
| } |
| if (toRight != null) { |
| toRight.setRotationY(-WORKSPACE_ROTATION); |
| toRight.setScaleX(getScaleXForRotation(WORKSPACE_ROTATION)); |
| } |
| } else { |
| rotation = scrollProgress * WORKSPACE_ROTATION; |
| cur.setRotationY(rotation); |
| cur.setScaleX(getScaleXForRotation(rotation)); |
| |
| if (toRight != null) { |
| rotation = -WORKSPACE_ROTATION * (1 - scrollProgress); |
| toRight.setRotationY(rotation); |
| toRight.setScaleX(getScaleXForRotation(rotation)); |
| } |
| if (toLeft != null) { |
| toLeft.setRotationY(WORKSPACE_ROTATION); |
| toLeft.setScaleX(getScaleXForRotation(WORKSPACE_ROTATION)); |
| } |
| } |
| } |
| |
| protected void onAttachedToWindow() { |
| super.onAttachedToWindow(); |
| computeScroll(); |
| mDragController.setWindowToken(getWindowToken()); |
| } |
| |
| @Override |
| protected void onLayout(boolean changed, int left, int top, int right, int bottom) { |
| 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 (mWaitingToShrinkToBottom) { |
| shrinkToBottom(false); |
| mWaitingToShrinkToBottom = false; |
| } |
| |
| if (LauncherApplication.isInPlaceRotationEnabled()) { |
| // When the device is rotated, the scroll position of the current screen |
| // needs to be refreshed |
| setCurrentPage(getCurrentPage()); |
| } |
| } |
| |
| @Override |
| protected void dispatchDraw(Canvas canvas) { |
| if (mIsSmall) { |
| // Draw all the workspaces if we're small |
| final int pageCount = getChildCount(); |
| final long drawingTime = getDrawingTime(); |
| for (int i = 0; i < pageCount; i++) { |
| final View page = (View) getChildAt(i); |
| |
| drawChild(canvas, page, drawingTime); |
| } |
| } else { |
| super.dispatchDraw(canvas); |
| } |
| } |
| |
| @Override |
| protected boolean onRequestFocusInDescendants(int direction, Rect previouslyFocusedRect) { |
| if (!mLauncher.isAllAppsVisible()) { |
| final Folder openFolder = getOpenFolder(); |
| if (openFolder != null) { |
| return openFolder.requestFocus(direction, previouslyFocusedRect); |
| } else { |
| return super.onRequestFocusInDescendants(direction, previouslyFocusedRect); |
| } |
| } |
| return false; |
| } |
| |
| @Override |
| public void addFocusables(ArrayList<View> views, int direction, int focusableMode) { |
| if (!mLauncher.isAllAppsVisible()) { |
| final Folder openFolder = getOpenFolder(); |
| if (openFolder != null) { |
| openFolder.addFocusables(views, direction); |
| } else { |
| super.addFocusables(views, direction, focusableMode); |
| } |
| } |
| } |
| |
| @Override |
| public boolean dispatchTouchEvent(MotionEvent ev) { |
| if (ev.getAction() == MotionEvent.ACTION_DOWN) { |
| // (In XLarge mode, the workspace is shrunken below all apps, and responds to taps |
| // ie when you click on a mini-screen, it zooms back to that screen) |
| if (!LauncherApplication.isScreenXLarge() && mLauncher.isAllAppsVisible()) { |
| return false; |
| } |
| } |
| return super.dispatchTouchEvent(ev); |
| } |
| |
| void enableChildrenCache(int fromPage, int toPage) { |
| if (fromPage > toPage) { |
| final int temp = fromPage; |
| fromPage = toPage; |
| toPage = temp; |
| } |
| |
| final int screenCount = getChildCount(); |
| |
| fromPage = Math.max(fromPage, 0); |
| toPage = Math.min(toPage, screenCount - 1); |
| |
| for (int i = fromPage; i <= toPage; i++) { |
| final CellLayout layout = (CellLayout) getChildAt(i); |
| layout.setChildrenDrawnWithCacheEnabled(true); |
| layout.setChildrenDrawingCacheEnabled(true); |
| } |
| } |
| |
| void clearChildrenCache() { |
| final int screenCount = getChildCount(); |
| for (int i = 0; i < screenCount; i++) { |
| final CellLayout layout = (CellLayout) getChildAt(i); |
| layout.setChildrenDrawnWithCacheEnabled(false); |
| } |
| } |
| |
| @Override |
| public boolean onTouchEvent(MotionEvent ev) { |
| if (mLauncher.isAllAppsVisible()) { |
| // Cancel any scrolling that is in progress. |
| if (!mScroller.isFinished()) { |
| mScroller.abortAnimation(); |
| } |
| snapToPage(mCurrentPage); |
| return false; // We don't want the events. Let them fall through to the all apps view. |
| } |
| |
| return super.onTouchEvent(ev); |
| } |
| |
| public boolean isSmall() { |
| return mIsSmall; |
| } |
| |
| void shrinkToTop(boolean animated) { |
| shrink(ShrinkPosition.SHRINK_TO_TOP, animated); |
| } |
| |
| void shrinkToMiddle() { |
| shrink(ShrinkPosition.SHRINK_TO_MIDDLE, true); |
| } |
| |
| void shrinkToBottom() { |
| shrinkToBottom(true); |
| } |
| |
| void shrinkToBottom(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 |
| mWaitingToShrinkToBottom = true; |
| } else { |
| shrink(ShrinkPosition.SHRINK_TO_BOTTOM, animated); |
| } |
| } |
| |
| 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; |
| } |
| |
| // we use this to shrink the workspace for the all apps view and the customize view |
| private void shrink(ShrinkPosition shrinkPosition, boolean animated) { |
| mIsSmall = true; |
| // we intercept and reject all touch events when we're small, so be sure to reset the state |
| mTouchState = TOUCH_STATE_REST; |
| mActivePointerId = INVALID_POINTER; |
| |
| final Resources res = getResources(); |
| final int screenWidth = getWidth(); |
| final int screenHeight = getHeight(); |
| |
| // Making the assumption that all pages have the same width as the 0th |
| final int pageWidth = getChildAt(0).getMeasuredWidth(); |
| final int pageHeight = getChildAt(0).getMeasuredHeight(); |
| |
| final int scaledPageWidth = (int) (SHRINK_FACTOR * pageWidth); |
| final int scaledPageHeight = (int) (SHRINK_FACTOR * pageHeight); |
| final float extraScaledSpacing = res.getDimension(R.dimen.smallScreenExtraSpacing); |
| |
| final int screenCount = getChildCount(); |
| float totalWidth = screenCount * scaledPageWidth + (screenCount - 1) * extraScaledSpacing; |
| |
| float newY = getResources().getDimension(R.dimen.smallScreenVerticalMargin); |
| if (shrinkPosition == ShrinkPosition.SHRINK_TO_BOTTOM) { |
| newY = screenHeight - newY - scaledPageHeight; |
| } else if (shrinkPosition == ShrinkPosition.SHRINK_TO_MIDDLE) { |
| newY = screenHeight / 2 - scaledPageHeight / 2; |
| } |
| |
| // We animate all the screens to the centered position in workspace |
| // At the same time, the screens become greyed/dimmed |
| |
| // newX is initialized to the left-most position of the centered screens |
| float newX = mScroller.getFinalX() + screenWidth / 2 - totalWidth / 2; |
| |
| // We are going to scale about the center of the view, so we need to adjust the positions |
| // of the views accordingly |
| newX -= (pageWidth - scaledPageWidth) / 2.0f; |
| newY -= (pageHeight - scaledPageHeight) / 2.0f; |
| for (int i = 0; i < screenCount; i++) { |
| CellLayout cl = (CellLayout) getChildAt(i); |
| |
| float rotation = (-i + 2) * WORKSPACE_ROTATION; |
| float rotationScaleX = (float) (1.0f / Math.cos(Math.PI * rotation / 180.0f)); |
| float rotationScaleY = getYScaleForScreen(i); |
| |
| if (animated) { |
| final int duration = res.getInteger(R.integer.config_workspaceShrinkTime); |
| new ObjectAnimator<Float>(duration, cl, |
| new PropertyValuesHolder<Float>("x", newX), |
| new PropertyValuesHolder<Float>("y", newY), |
| new PropertyValuesHolder<Float>("scaleX", SHRINK_FACTOR * rotationScaleX), |
| new PropertyValuesHolder<Float>("scaleY", SHRINK_FACTOR * rotationScaleY), |
| new PropertyValuesHolder<Float>("backgroundAlpha", 1.0f), |
| new PropertyValuesHolder<Float>("alpha", 1.0f), |
| new PropertyValuesHolder<Float>("rotationY", rotation)).start(); |
| } else { |
| cl.setX((int)newX); |
| cl.setY((int)newY); |
| cl.setScaleX(SHRINK_FACTOR * rotationScaleX); |
| cl.setScaleY(SHRINK_FACTOR * rotationScaleY); |
| cl.setBackgroundAlpha(1.0f); |
| cl.setAlpha(0.0f); |
| cl.setRotationY(rotation); |
| } |
| // increment newX for the next screen |
| newX += scaledPageWidth + extraScaledSpacing; |
| cl.setOnInterceptTouchListener(this); |
| } |
| setChildrenDrawnWithCacheEnabled(true); |
| } |
| |
| // We call this when we trigger an unshrink by clicking on the CellLayout cl |
| public void unshrink(CellLayout clThatWasClicked) { |
| int newCurrentPage = mCurrentPage; |
| final int screenCount = getChildCount(); |
| for (int i = 0; i < screenCount; i++) { |
| if (getChildAt(i) == clThatWasClicked) { |
| newCurrentPage = i; |
| } |
| } |
| unshrink(newCurrentPage); |
| } |
| |
| private void unshrink(int newCurrentPage) { |
| if (mIsSmall) { |
| int newX = getChildOffset(newCurrentPage) - getRelativeChildOffset(newCurrentPage); |
| int delta = newX - mScrollX; |
| |
| final int screenCount = getChildCount(); |
| for (int i = 0; i < screenCount; i++) { |
| CellLayout cl = (CellLayout) getChildAt(i); |
| cl.setX(cl.getX() + delta); |
| } |
| snapToPage(newCurrentPage); |
| unshrink(); |
| |
| setCurrentPage(newCurrentPage); |
| } |
| } |
| |
| void unshrink() { |
| unshrink(true); |
| } |
| |
| void unshrink(boolean animated) { |
| if (mIsSmall) { |
| AnimatorSet s = new AnimatorSet(); |
| final int screenCount = getChildCount(); |
| |
| final int duration = getResources().getInteger(R.integer.config_workspaceUnshrinkTime); |
| for (int i = 0; i < screenCount; i++) { |
| final CellLayout cl = (CellLayout)getChildAt(i); |
| float finalAlphaValue = (i == mCurrentPage) ? 1.0f : 0.0f; |
| float rotation = 0.0f; |
| |
| if (i < mCurrentPage) { |
| rotation = WORKSPACE_ROTATION; |
| } else if (i > mCurrentPage) { |
| rotation = -WORKSPACE_ROTATION; |
| } |
| |
| if (animated) { |
| s.playTogether( |
| new ObjectAnimator<Float>(duration, cl, "translationX", 0.0f), |
| new ObjectAnimator<Float>(duration, cl, "translationY", 0.0f), |
| new ObjectAnimator<Float>(duration, cl, "scaleX", 1.0f), |
| new ObjectAnimator<Float>(duration, cl, "scaleY", 1.0f), |
| new ObjectAnimator<Float>(duration, cl, "backgroundAlpha", 0.0f), |
| new ObjectAnimator<Float>(duration, cl, "alpha", finalAlphaValue), |
| new ObjectAnimator<Float>(duration, cl, "rotationY", rotation)); |
| } else { |
| cl.setTranslationX(0.0f); |
| cl.setTranslationY(0.0f); |
| cl.setScaleX(1.0f); |
| cl.setScaleY(1.0f); |
| cl.setBackgroundAlpha(0.0f); |
| cl.setAlpha(finalAlphaValue); |
| cl.setRotationY(rotation); |
| } |
| } |
| s.addListener(mUnshrinkAnimationListener); |
| s.start(); |
| } |
| } |
| |
| 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; |
| mDragInfo.screen = mCurrentPage; |
| |
| CellLayout current = ((CellLayout) getChildAt(mCurrentPage)); |
| |
| current.onDragChild(child); |
| mDragController.startDrag(child, this, child.getTag(), DragController.DRAG_ACTION_MOVE); |
| current.onDragEnter(child); |
| invalidate(); |
| } |
| |
| 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]); |
| } |
| |
| |
| public void onDrop(DragSource source, int x, int y, int xOffset, int yOffset, |
| DragView dragView, Object dragInfo) { |
| CellLayout cellLayout; |
| int originX = x - xOffset; |
| int originY = y - yOffset; |
| if (mIsSmall) { |
| cellLayout = findMatchingPageForDragOver(dragView, originX, originY); |
| if (cellLayout == null) { |
| // cancel the drag if we're not over a mini-screen at time of drop |
| // TODO: maybe add a nice fade here? |
| return; |
| } |
| // get originX and originY in the local coordinate system of the screen |
| mTempOriginXY[0] = originX; |
| mTempOriginXY[1] = originY; |
| mapPointGlobalToLocal(cellLayout, mTempOriginXY); |
| originX = (int)mTempOriginXY[0]; |
| originY = (int)mTempOriginXY[1]; |
| } else { |
| cellLayout = getCurrentDropLayout(); |
| } |
| |
| if (source != this) { |
| onDropExternal(originX, originY, dragInfo, cellLayout); |
| } else { |
| // Move internally |
| if (mDragInfo != null) { |
| final View cell = mDragInfo.cell; |
| |
| mTargetCell = findNearestVacantArea(originX, originY, |
| mDragInfo.spanX, mDragInfo.spanY, cell, cellLayout, |
| mTargetCell); |
| |
| int screen = indexOfChild(cellLayout); |
| if (screen != mDragInfo.screen) { |
| final CellLayout originalCellLayout = (CellLayout) getChildAt(mDragInfo.screen); |
| originalCellLayout.removeView(cell); |
| addInScreen(cell, screen, mTargetCell[0], mTargetCell[1], |
| mDragInfo.spanX, mDragInfo.spanY); |
| } |
| cellLayout.onDropChild(cell); |
| |
| // update the item's position after drop |
| final ItemInfo info = (ItemInfo) cell.getTag(); |
| CellLayout.LayoutParams lp = (CellLayout.LayoutParams) cell.getLayoutParams(); |
| cellLayout.onMove(cell, mTargetCell[0], mTargetCell[1]); |
| lp.cellX = mTargetCell[0]; |
| lp.cellY = mTargetCell[1]; |
| cell.setId(LauncherModel.getCellLayoutChildId(-1, mDragInfo.screen, |
| mTargetCell[0], mTargetCell[1], mDragInfo.spanX, mDragInfo.spanY)); |
| |
| LauncherModel.moveItemInDatabase(mLauncher, info, |
| LauncherSettings.Favorites.CONTAINER_DESKTOP, screen, |
| lp.cellX, lp.cellY); |
| } |
| } |
| } |
| |
| public void onDragEnter(DragSource source, int x, int y, int xOffset, |
| int yOffset, DragView dragView, Object dragInfo) { |
| getCurrentDropLayout().onDragEnter(dragView); |
| } |
| |
| public DropTarget getDropTargetDelegate(DragSource source, int x, int y, int xOffset, int yOffset, |
| DragView dragView, Object dragInfo) { |
| |
| if (mIsSmall) { |
| // If we're shrunken, don't let anyone drag on folders/etc that are on the mini-screens |
| return null; |
| } |
| // We may need to delegate the drag to a child view. If a 1x1 item |
| // would land in a cell occupied by a DragTarget (e.g. a Folder), |
| // then drag events should be handled by that child. |
| |
| ItemInfo item = (ItemInfo)dragInfo; |
| CellLayout currentLayout = getCurrentDropLayout(); |
| |
| int dragPointX, dragPointY; |
| if (item.spanX == 1 && item.spanY == 1) { |
| // For a 1x1, calculate the drop cell exactly as in onDragOver |
| dragPointX = x - xOffset; |
| dragPointY = y - yOffset; |
| } else { |
| // Otherwise, use the exact drag coordinates |
| dragPointX = x; |
| dragPointY = y; |
| } |
| dragPointX += mScrollX - currentLayout.getLeft(); |
| dragPointY += mScrollY - currentLayout.getTop(); |
| |
| // If we are dragging over a cell that contains a DropTarget that will |
| // accept the drop, delegate to that DropTarget. |
| final int[] cellXY = mTempCell; |
| currentLayout.estimateDropCell(dragPointX, dragPointY, item.spanX, item.spanY, cellXY); |
| View child = currentLayout.getChildAt(cellXY[0], cellXY[1]); |
| if (child instanceof DropTarget) { |
| DropTarget target = (DropTarget)child; |
| if (target.acceptDrop(source, x, y, xOffset, yOffset, dragView, dragInfo)) { |
| return target; |
| } |
| } |
| return null; |
| } |
| |
| private void mapPointGlobalToLocal(View v, float[] xy) { |
| xy[0] = xy[0] + mScrollX - v.getLeft(); |
| xy[1] = xy[1] + mScrollY - v.getTop(); |
| v.getMatrix().invert(mTempInverseMatrix); |
| mTempInverseMatrix.mapPoints(xy); |
| } |
| |
| // xy = upper left corner of item being dragged |
| // bottomRightXy = lower right corner of item being dragged |
| // This method will see which mini-screen is most overlapped by the item being dragged, and |
| // return it. It will also transform the parameters xy and bottomRightXy into the local |
| // coordinate space of the returned screen |
| private CellLayout findMatchingPageForDragOver(DragView dragView, int originX, int originY) { |
| float x = originX + dragView.getScaledDragRegionXOffset(); |
| float y = originY + dragView.getScaledDragRegionYOffset(); |
| float right = x + dragView.getScaledDragRegionWidth(); |
| float bottom = y + dragView.getScaledDragRegionHeight(); |
| |
| // We loop through all the screens (ie CellLayouts) and see which one overlaps the most |
| // with the item being dragged. |
| final int screenCount = getChildCount(); |
| CellLayout bestMatchingScreen = null; |
| float smallestDistSoFar = Float.MAX_VALUE; |
| final float[] xy = mTempDragCoordinates; |
| final float[] bottomRightXy = mTempDragBottomRightCoordinates; |
| for (int i = 0; i < screenCount; i++) { |
| CellLayout cl = (CellLayout)getChildAt(i); |
| // Transform the coordinates of the item being dragged to the CellLayout's coordinates |
| float left = cl.getLeft(); |
| float top = cl.getTop(); |
| xy[0] = x + mScrollX - left; |
| xy[1] = y + mScrollY - top; |
| |
| bottomRightXy[0] = right + mScrollX - left; |
| bottomRightXy[1] = bottom + mScrollY - top; |
| |
| cl.getMatrix().invert(mTempInverseMatrix); |
| mTempInverseMatrix.mapPoints(xy); |
| mTempInverseMatrix.mapPoints(bottomRightXy); |
| |
| float dragRegionX = xy[0]; |
| float dragRegionY = xy[1]; |
| float dragRegionRight = bottomRightXy[0]; |
| float dragRegionBottom = bottomRightXy[1]; |
| float dragRegionCenterX = (dragRegionX + dragRegionRight) / 2.0f; |
| float dragRegionCenterY = (dragRegionY + dragRegionBottom) / 2.0f; |
| |
| // Find the overlapping region |
| float overlapLeft = Math.max(0f, dragRegionX); |
| float overlapTop = Math.max(0f, dragRegionY); |
| float overlapBottom = Math.min(cl.getHeight(), dragRegionBottom); |
| float overlapRight = Math.min(cl.getWidth(), dragRegionRight); |
| if (overlapRight >= 0 && overlapLeft <= cl.getWidth() && |
| (overlapTop >= 0 && overlapBottom <= cl.getHeight())) { |
| // Calculate the distance between the two centers |
| float distX = dragRegionCenterX - cl.getWidth()/2; |
| float distY = dragRegionCenterY - cl.getHeight()/2; |
| float dist = distX * distX + distY * distY; |
| |
| float overlap = (overlapRight - overlapLeft) * (overlapBottom - overlapTop); |
| |
| // Calculate the closest overlapping region |
| if (overlap > 0 && dist < smallestDistSoFar) { |
| smallestDistSoFar = dist; |
| bestMatchingScreen = cl; |
| } |
| } |
| } |
| |
| if (bestMatchingScreen != mDragTargetLayout) { |
| if (mDragTargetLayout != null) { |
| mDragTargetLayout.onDragExit(); |
| } |
| mDragTargetLayout = bestMatchingScreen; |
| } |
| return bestMatchingScreen; |
| } |
| |
| public void onDragOver(DragSource source, int x, int y, int xOffset, int yOffset, |
| DragView dragView, Object dragInfo) { |
| CellLayout currentLayout; |
| int originX = x - xOffset; |
| int originY = y - yOffset; |
| if (mIsSmall) { |
| currentLayout = findMatchingPageForDragOver(dragView, originX, originY); |
| |
| if (currentLayout == null) { |
| return; |
| } |
| |
| currentLayout.setHover(true); |
| // get originX and originY in the local coordinate system of the screen |
| mTempOriginXY[0] = originX; |
| mTempOriginXY[1] = originY; |
| mapPointGlobalToLocal(currentLayout, mTempOriginXY); |
| originX = (int)mTempOriginXY[0]; |
| originY = (int)mTempOriginXY[1]; |
| } else { |
| currentLayout = getCurrentDropLayout(); |
| } |
| |
| final ItemInfo item = (ItemInfo)dragInfo; |
| |
| if (dragInfo instanceof LauncherAppWidgetInfo) { |
| LauncherAppWidgetInfo widgetInfo = (LauncherAppWidgetInfo)dragInfo; |
| |
| if (widgetInfo.spanX == -1) { |
| // Calculate the grid spans needed to fit this widget |
| int[] spans = currentLayout.rectToCell(widgetInfo.minWidth, widgetInfo.minHeight, null); |
| item.spanX = spans[0]; |
| item.spanY = spans[1]; |
| } |
| } |
| |
| if (source != this) { |
| // This is a hack to fix the point used to determine which cell an icon from the all |
| // apps screen is over |
| if (item != null && item.spanX == 1 && currentLayout != null) { |
| int dragRegionLeft = (dragView.getWidth() - currentLayout.getCellWidth()) / 2; |
| |
| originX += dragRegionLeft - dragView.getDragRegionLeft(); |
| if (dragView.getDragRegionWidth() != currentLayout.getCellWidth()) { |
| dragView.setDragRegion(dragView.getDragRegionLeft(), dragView.getDragRegionTop(), |
| currentLayout.getCellWidth(), dragView.getDragRegionHeight()); |
| } |
| } |
| } |
| if (currentLayout != mDragTargetLayout) { |
| if (mDragTargetLayout != null) { |
| mDragTargetLayout.onDragExit(); |
| currentLayout.onDragEnter(dragView); |
| } |
| mDragTargetLayout = currentLayout; |
| } |
| |
| // only visualize the drop locations for moving icons within the home screen on tablet |
| // on phone, we also visualize icons dragged in from All Apps |
| if ((!LauncherApplication.isScreenXLarge() || source == this) |
| && mDragTargetLayout != null) { |
| final View child = (mDragInfo == null) ? null : mDragInfo.cell; |
| int localOriginX = originX - (mDragTargetLayout.getLeft() - mScrollX); |
| int localOriginY = originY - (mDragTargetLayout.getTop() - mScrollY); |
| mDragTargetLayout.visualizeDropLocation( |
| child, localOriginX, localOriginY, item.spanX, item.spanY); |
| } |
| } |
| |
| public void onDragExit(DragSource source, int x, int y, int xOffset, |
| int yOffset, DragView dragView, Object dragInfo) { |
| if (mDragTargetLayout != null) { |
| mDragTargetLayout.onDragExit(); |
| mDragTargetLayout = null; |
| } |
| } |
| |
| private void onDropExternal(int x, int y, Object dragInfo, |
| CellLayout cellLayout) { |
| onDropExternal(x, y, dragInfo, cellLayout, false); |
| } |
| |
| /** |
| * Add the item specified by dragInfo to the given layout. |
| * This is basically the equivalent of onDropExternal, except it's not initiated |
| * by drag and drop. |
| * @return true if successful |
| */ |
| public boolean addExternalItemToScreen(Object dragInfo, View layout) { |
| CellLayout cl = (CellLayout) layout; |
| ItemInfo info = (ItemInfo) dragInfo; |
| |
| if (cl.findCellForSpan(mTempEstimate, info.spanX, info.spanY)) { |
| onDropExternal(0, 0, dragInfo, cl, false); |
| return true; |
| } |
| mLauncher.showOutOfSpaceMessage(); |
| return false; |
| } |
| |
| // Drag from somewhere else |
| private void onDropExternal(int x, int y, Object dragInfo, |
| CellLayout cellLayout, boolean insertAtFirst) { |
| int screen = indexOfChild(cellLayout); |
| if (dragInfo instanceof PendingAddItemInfo) { |
| PendingAddItemInfo info = (PendingAddItemInfo) dragInfo; |
| // When dragging and dropping from customization tray, we deal with creating |
| // widgets/shortcuts/folders in a slightly different way |
| int[] touchXY = new int[2]; |
| touchXY[0] = x; |
| touchXY[1] = y; |
| switch (info.itemType) { |
| case LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET: |
| mLauncher.addAppWidgetFromDrop(info.componentName, screen, touchXY); |
| break; |
| case LauncherSettings.Favorites.ITEM_TYPE_LIVE_FOLDER: |
| mLauncher.addLiveFolderFromDrop(info.componentName, screen, touchXY); |
| break; |
| case LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT: |
| mLauncher.processShortcutFromDrop(info.componentName, screen, touchXY); |
| break; |
| default: |
| throw new IllegalStateException("Unknown item type: " + info.itemType); |
| } |
| cellLayout.onDragExit(); |
| return; |
| } |
| |
| // This is for other drag/drop cases, like dragging from All Apps |
| ItemInfo info = (ItemInfo) dragInfo; |
| |
| View view = null; |
| |
| switch (info.itemType) { |
| case LauncherSettings.Favorites.ITEM_TYPE_APPLICATION: |
| case LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT: |
| if (info.container == NO_ID && info instanceof ApplicationInfo) { |
| // Came from all apps -- make a copy |
| info = new ShortcutInfo((ApplicationInfo) info); |
| } |
| view = mLauncher.createShortcut(R.layout.application, cellLayout, |
| (ShortcutInfo) info); |
| break; |
| case LauncherSettings.Favorites.ITEM_TYPE_USER_FOLDER: |
| view = FolderIcon.fromXml(R.layout.folder_icon, mLauncher, |
| cellLayout, ((UserFolderInfo) info)); |
| break; |
| default: |
| throw new IllegalStateException("Unknown item type: " + info.itemType); |
| } |
| |
| // If the view is null, it has already been added. |
| if (view == null) { |
| cellLayout.onDragExit(); |
| } else { |
| mTargetCell = findNearestVacantArea(x, y, 1, 1, null, cellLayout, mTargetCell); |
| addInScreen(view, indexOfChild(cellLayout), mTargetCell[0], |
| mTargetCell[1], info.spanX, info.spanY, insertAtFirst); |
| cellLayout.onDropChild(view); |
| CellLayout.LayoutParams lp = (CellLayout.LayoutParams) view.getLayoutParams(); |
| |
| LauncherModel.addOrMoveItemInDatabase(mLauncher, info, |
| LauncherSettings.Favorites.CONTAINER_DESKTOP, screen, |
| lp.cellX, lp.cellY); |
| } |
| } |
| |
| /** |
| * Return the current {@link CellLayout}, correctly picking the destination |
| * screen while a scroll is in progress. |
| */ |
| private CellLayout getCurrentDropLayout() { |
| int index = mScroller.isFinished() ? mCurrentPage : mNextPage; |
| return (CellLayout) getChildAt(index); |
| } |
| |
| /** |
| * Return the current CellInfo describing our current drag; this method exists |
| * so that Launcher can sync this object with the correct info when the activity is created/ |
| * destroyed |
| * |
| */ |
| public CellLayout.CellInfo getDragInfo() { |
| return mDragInfo; |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| public boolean acceptDrop(DragSource source, int x, int y, |
| int xOffset, int yOffset, DragView dragView, Object dragInfo) { |
| CellLayout layout; |
| if (mIsSmall) { |
| layout = findMatchingPageForDragOver(dragView, x - xOffset, y - yOffset); |
| if (layout == null) { |
| // cancel the drag if we're not over a mini-screen at time of drop |
| return false; |
| } |
| } else { |
| layout = getCurrentDropLayout(); |
| } |
| final CellLayout.CellInfo dragCellInfo = mDragInfo; |
| final int spanX = dragCellInfo == null ? 1 : dragCellInfo.spanX; |
| final int spanY = dragCellInfo == null ? 1 : dragCellInfo.spanY; |
| |
| final View ignoreView = dragCellInfo == null ? null : dragCellInfo.cell; |
| |
| if (layout.findCellForSpanIgnoring(null, spanX, spanY, ignoreView)) { |
| return true; |
| } else { |
| mLauncher.showOutOfSpaceMessage(); |
| return false; |
| } |
| } |
| |
| /** |
| * Calculate the nearest cell where the given object would be dropped. |
| */ |
| private int[] findNearestVacantArea(int pixelX, int pixelY, |
| int spanX, int spanY, View ignoreView, CellLayout layout, int[] recycle) { |
| |
| int localPixelX = pixelX - (layout.getLeft() - mScrollX); |
| int localPixelY = pixelY - (layout.getTop() - mScrollY); |
| |
| // Find the best target drop location |
| return layout.findNearestVacantArea( |
| localPixelX, localPixelY, spanX, spanY, ignoreView, recycle); |
| } |
| |
| /** |
| * Estimate the size that a child with the given dimensions will take in the current screen. |
| */ |
| void estimateChildSize(int minWidth, int minHeight, int[] result) { |
| ((CellLayout)getChildAt(mCurrentPage)).estimateChildSize(minWidth, minHeight, result); |
| } |
| |
| void setLauncher(Launcher launcher) { |
| mLauncher = launcher; |
| } |
| |
| public void setDragController(DragController dragController) { |
| mDragController = dragController; |
| } |
| |
| public void onDropCompleted(View target, boolean success) { |
| if (success) { |
| if (target != this && mDragInfo != null) { |
| final CellLayout cellLayout = (CellLayout) getChildAt(mDragInfo.screen); |
| cellLayout.removeView(mDragInfo.cell); |
| if (mDragInfo.cell instanceof DropTarget) { |
| mDragController.removeDropTarget((DropTarget)mDragInfo.cell); |
| } |
| // final Object tag = mDragInfo.cell.getTag(); |
| } |
| } else { |
| if (mDragInfo != null) { |
| final CellLayout cellLayout = (CellLayout) getChildAt(mDragInfo.screen); |
| cellLayout.onDropAborted(mDragInfo.cell); |
| } |
| } |
| |
| mDragInfo = null; |
| } |
| |
| public boolean isDropEnabled() { |
| return true; |
| } |
| |
| @Override |
| protected void onRestoreInstanceState(Parcelable state) { |
| super.onRestoreInstanceState(state); |
| Launcher.setScreen(mCurrentPage); |
| } |
| |
| @Override |
| public void scrollLeft() { |
| if (!mIsSmall) { |
| super.scrollLeft(); |
| } |
| } |
| |
| @Override |
| public void scrollRight() { |
| if (!mIsSmall) { |
| super.scrollRight(); |
| } |
| } |
| |
| public Folder getFolderForTag(Object tag) { |
| final int screenCount = getChildCount(); |
| for (int screen = 0; screen < screenCount; screen++) { |
| CellLayout currentScreen = ((CellLayout) getChildAt(screen)); |
| 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++) { |
| CellLayout currentScreen = ((CellLayout) getChildAt(screen)); |
| int count = currentScreen.getChildCount(); |
| for (int i = 0; i < count; i++) { |
| View child = currentScreen.getChildAt(i); |
| if (child.getTag() == tag) { |
| return child; |
| } |
| } |
| } |
| return null; |
| } |
| |
| |
| void removeItems(final ArrayList<ApplicationInfo> apps) { |
| final int screenCount = getChildCount(); |
| final PackageManager manager = getContext().getPackageManager(); |
| final AppWidgetManager widgets = AppWidgetManager.getInstance(getContext()); |
| |
| final HashSet<String> packageNames = new HashSet<String>(); |
| final int appCount = apps.size(); |
| for (int i = 0; i < appCount; i++) { |
| packageNames.add(apps.get(i).componentName.getPackageName()); |
| } |
| |
| for (int i = 0; i < screenCount; i++) { |
| final CellLayout layout = (CellLayout) getChildAt(i); |
| |
| // Avoid ANRs by treating each screen separately |
| post(new Runnable() { |
| public void run() { |
| final ArrayList<View> childrenToRemove = new ArrayList<View>(); |
| childrenToRemove.clear(); |
| |
| int childCount = layout.getChildCount(); |
| for (int j = 0; j < childCount; j++) { |
| final View view = layout.getChildAt(j); |
| Object tag = view.getTag(); |
| |
| if (tag instanceof ShortcutInfo) { |
| final ShortcutInfo info = (ShortcutInfo) tag; |
| final Intent intent = info.intent; |
| final ComponentName name = intent.getComponent(); |
| |
| if (Intent.ACTION_MAIN.equals(intent.getAction()) && name != null) { |
| for (String packageName: packageNames) { |
| if (packageName.equals(name.getPackageName())) { |
| LauncherModel.deleteItemFromDatabase(mLauncher, info); |
| childrenToRemove.add(view); |
| } |
| } |
| } |
| } else if (tag instanceof UserFolderInfo) { |
| final UserFolderInfo info = (UserFolderInfo) tag; |
| final ArrayList<ShortcutInfo> contents = info.contents; |
| final ArrayList<ShortcutInfo> toRemove = new ArrayList<ShortcutInfo>(1); |
| final int contentsCount = contents.size(); |
| boolean removedFromFolder = false; |
| |
| for (int k = 0; k < contentsCount; k++) { |
| final ShortcutInfo appInfo = contents.get(k); |
| final Intent intent = appInfo.intent; |
| final ComponentName name = intent.getComponent(); |
| |
| if (Intent.ACTION_MAIN.equals(intent.getAction()) && name != null) { |
| for (String packageName: packageNames) { |
| if (packageName.equals(name.getPackageName())) { |
| toRemove.add(appInfo); |
| LauncherModel.deleteItemFromDatabase(mLauncher, appInfo); |
| removedFromFolder = true; |
| } |
| } |
| } |
| } |
| |
| contents.removeAll(toRemove); |
| if (removedFromFolder) { |
| final Folder folder = getOpenFolder(); |
| if (folder != null) |
| folder.notifyDataSetChanged(); |
| } |
| } else if (tag instanceof LiveFolderInfo) { |
| final LiveFolderInfo info = (LiveFolderInfo) tag; |
| final Uri uri = info.uri; |
| final ProviderInfo providerInfo = manager.resolveContentProvider( |
| uri.getAuthority(), 0); |
| |
| if (providerInfo != null) { |
| for (String packageName: packageNames) { |
| if (packageName.equals(providerInfo.packageName)) { |
| LauncherModel.deleteItemFromDatabase(mLauncher, info); |
| childrenToRemove.add(view); |
| } |
| } |
| } |
| } else if (tag instanceof LauncherAppWidgetInfo) { |
| final LauncherAppWidgetInfo info = (LauncherAppWidgetInfo) tag; |
| final AppWidgetProviderInfo provider = |
| widgets.getAppWidgetInfo(info.appWidgetId); |
| if (provider != null) { |
| for (String packageName: packageNames) { |
| if (packageName.equals(provider.provider.getPackageName())) { |
| LauncherModel.deleteItemFromDatabase(mLauncher, info); |
| childrenToRemove.add(view); |
| } |
| } |
| } |
| } |
| } |
| |
| childCount = childrenToRemove.size(); |
| for (int j = 0; j < childCount; j++) { |
| View child = childrenToRemove.get(j); |
| layout.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 CellLayout layout = (CellLayout) getChildAt(i); |
| 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 (animate) { |
| if (mIsSmall) { |
| unshrink(mDefaultPage); |
| } else { |
| snapToPage(mDefaultPage); |
| } |
| } else { |
| setCurrentPage(mDefaultPage); |
| } |
| getChildAt(mDefaultPage).requestFocus(); |
| } |
| |
| void setIndicators(Drawable previous, Drawable next) { |
| mPreviousIndicator = previous; |
| mNextIndicator = next; |
| previous.setLevel(mCurrentPage); |
| next.setLevel(mCurrentPage); |
| } |
| |
| @Override |
| public void syncPages() { |
| } |
| |
| @Override |
| public void syncPageItems(int page) { |
| } |
| |
| } |