Workspace.java revision c1f5d26675e9777a55076d41404208e6160ca483
1/* 2 * Copyright (C) 2008 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17package com.android.launcher2; 18 19import android.animation.Animator; 20import android.animation.AnimatorListenerAdapter; 21import android.animation.AnimatorSet; 22import android.animation.ObjectAnimator; 23import android.animation.TimeInterpolator; 24import android.animation.ValueAnimator; 25import android.animation.Animator.AnimatorListener; 26import android.animation.ValueAnimator.AnimatorUpdateListener; 27import android.app.AlertDialog; 28import android.app.WallpaperManager; 29import android.appwidget.AppWidgetManager; 30import android.appwidget.AppWidgetProviderInfo; 31import android.content.ClipData; 32import android.content.ClipDescription; 33import android.content.ComponentName; 34import android.content.Context; 35import android.content.Intent; 36import android.content.res.Resources; 37import android.content.res.TypedArray; 38import android.graphics.Bitmap; 39import android.graphics.Camera; 40import android.graphics.Canvas; 41import android.graphics.Matrix; 42import android.graphics.Paint; 43import android.graphics.PorterDuff; 44import android.graphics.Rect; 45import android.graphics.RectF; 46import android.graphics.Region.Op; 47import android.graphics.drawable.Drawable; 48import android.os.IBinder; 49import android.os.Parcelable; 50import android.util.AttributeSet; 51import android.util.DisplayMetrics; 52import android.util.Log; 53import android.util.Pair; 54import android.view.Display; 55import android.view.DragEvent; 56import android.view.MotionEvent; 57import android.view.View; 58import android.view.ViewGroup; 59import android.view.animation.DecelerateInterpolator; 60import android.widget.ImageView; 61import android.widget.TextView; 62import android.widget.Toast; 63 64import com.android.launcher.R; 65import com.android.launcher2.FolderIcon.FolderRingAnimator; 66import com.android.launcher2.InstallWidgetReceiver.WidgetMimeTypeHandlerData; 67 68import java.util.ArrayList; 69import java.util.HashSet; 70import java.util.List; 71 72/** 73 * The workspace is a wide area with a wallpaper and a finite number of pages. 74 * Each page contains a number of icons, folders or widgets the user can 75 * interact with. A workspace is meant to be used with a fixed width only. 76 */ 77public class Workspace extends SmoothPagedView 78 implements DropTarget, DragSource, DragScroller, View.OnTouchListener, 79 DragController.DragListener { 80 @SuppressWarnings({"UnusedDeclaration"}) 81 private static final String TAG = "Launcher.Workspace"; 82 83 // Y rotation to apply to the workspace screens 84 private static final float WORKSPACE_ROTATION = 12.5f; 85 private static final float WORKSPACE_OVERSCROLL_ROTATION = 24f; 86 private static float CAMERA_DISTANCE = 6500; 87 88 private static final int CHILDREN_OUTLINE_FADE_OUT_DELAY = 0; 89 private static final int CHILDREN_OUTLINE_FADE_OUT_DURATION = 375; 90 private static final int CHILDREN_OUTLINE_FADE_IN_DURATION = 100; 91 92 private static final int BACKGROUND_FADE_OUT_DURATION = 350; 93 private static final int ADJACENT_SCREEN_DROP_DURATION = 300; 94 95 // These animators are used to fade the children's outlines 96 private ObjectAnimator mChildrenOutlineFadeInAnimation; 97 private ObjectAnimator mChildrenOutlineFadeOutAnimation; 98 private float mChildrenOutlineAlpha = 0; 99 100 // These properties refer to the background protection gradient used for AllApps and Customize 101 private ValueAnimator mBackgroundFadeInAnimation; 102 private ValueAnimator mBackgroundFadeOutAnimation; 103 private Drawable mBackground; 104 boolean mDrawBackground = true; 105 private float mBackgroundAlpha = 0; 106 private float mOverScrollMaxBackgroundAlpha = 0.0f; 107 private int mOverScrollPageIndex = -1; 108 private AnimatorSet mDividerAnimator; 109 110 private float mWallpaperScrollRatio = 1.0f; 111 112 private final WallpaperManager mWallpaperManager; 113 private IBinder mWindowToken; 114 private static final float WALLPAPER_SCREENS_SPAN = 2f; 115 116 private int mDefaultPage; 117 118 /** 119 * CellInfo for the cell that is currently being dragged 120 */ 121 private CellLayout.CellInfo mDragInfo; 122 123 /** 124 * Target drop area calculated during last acceptDrop call. 125 */ 126 private int[] mTargetCell = new int[2]; 127 128 /** 129 * The CellLayout that is currently being dragged over 130 */ 131 private CellLayout mDragTargetLayout = null; 132 133 private Launcher mLauncher; 134 private IconCache mIconCache; 135 private DragController mDragController; 136 137 // These are temporary variables to prevent having to allocate a new object just to 138 // return an (x, y) value from helper functions. Do NOT use them to maintain other state. 139 private int[] mTempCell = new int[2]; 140 private int[] mTempEstimate = new int[2]; 141 private float[] mDragViewVisualCenter = new float[2]; 142 private float[] mTempDragCoordinates = new float[2]; 143 private float[] mTempCellLayoutCenterCoordinates = new float[2]; 144 private float[] mTempDragBottomRightCoordinates = new float[2]; 145 private Matrix mTempInverseMatrix = new Matrix(); 146 147 private SpringLoadedDragController mSpringLoadedDragController; 148 private float mSpringLoadedShrinkFactor; 149 150 private static final int DEFAULT_CELL_COUNT_X = 4; 151 private static final int DEFAULT_CELL_COUNT_Y = 4; 152 153 // State variable that indicates whether the pages are small (ie when you're 154 // in all apps or customize mode) 155 156 enum State { NORMAL, SPRING_LOADED, SMALL }; 157 private State mState = State.NORMAL; 158 private boolean mIsSwitchingState = false; 159 private boolean mSwitchStateAfterFirstLayout = false; 160 private State mStateAfterFirstLayout; 161 162 private AnimatorSet mAnimator; 163 private AnimatorListener mChangeStateAnimationListener; 164 165 boolean mAnimatingViewIntoPlace = false; 166 boolean mIsDragOccuring = false; 167 boolean mChildrenLayersEnabled = true; 168 169 /** Is the user is dragging an item near the edge of a page? */ 170 private boolean mInScrollArea = false; 171 172 private final HolographicOutlineHelper mOutlineHelper = new HolographicOutlineHelper(); 173 private Bitmap mDragOutline = null; 174 private final Rect mTempRect = new Rect(); 175 private final int[] mTempXY = new int[2]; 176 private int mDragViewMultiplyColor; 177 178 // Paint used to draw external drop outline 179 private final Paint mExternalDragOutlinePaint = new Paint(); 180 181 // Camera and Matrix used to determine the final position of a neighboring CellLayout 182 private final Matrix mMatrix = new Matrix(); 183 private final Camera mCamera = new Camera(); 184 private final float mTempFloat2[] = new float[2]; 185 186 enum WallpaperVerticalOffset { TOP, MIDDLE, BOTTOM }; 187 int mWallpaperWidth; 188 int mWallpaperHeight; 189 WallpaperOffsetInterpolator mWallpaperOffset; 190 boolean mUpdateWallpaperOffsetImmediately = false; 191 private Runnable mDelayedResizeRunnable; 192 private int mDisplayWidth; 193 private int mDisplayHeight; 194 private boolean mIsStaticWallpaper; 195 private int mWallpaperTravelWidth; 196 197 // Variables relating to the creation of user folders by hovering shortcuts over shortcuts 198 private static final int FOLDER_CREATION_TIMEOUT = 250; 199 private final Alarm mFolderCreationAlarm = new Alarm(); 200 private FolderRingAnimator mDragFolderRingAnimator = null; 201 private View mLastDragOverView = null; 202 private boolean mCreateUserFolderOnDrop = false; 203 204 // Variables relating to touch disambiguation (scrolling workspace vs. scrolling a widget) 205 private float mXDown; 206 private float mYDown; 207 final static float START_DAMPING_TOUCH_SLOP_ANGLE = (float) Math.PI / 6; 208 final static float MAX_SWIPE_ANGLE = (float) Math.PI / 3; 209 final static float TOUCH_SLOP_DAMPING_FACTOR = 4; 210 211 // These variables are used for storing the initial and final values during workspace animations 212 private int mSavedScrollX; 213 private float mSavedRotationY; 214 private float mSavedTranslationX; 215 private float mCurrentScaleX; 216 private float mCurrentScaleY; 217 private float mCurrentRotationY; 218 private float mCurrentTranslationX; 219 private float mCurrentTranslationY; 220 private float[] mOldTranslationXs; 221 private float[] mOldTranslationYs; 222 private float[] mOldScaleXs; 223 private float[] mOldScaleYs; 224 private float[] mOldBackgroundAlphas; 225 private float[] mOldBackgroundAlphaMultipliers; 226 private float[] mOldAlphas; 227 private float[] mOldRotationYs; 228 private float[] mNewTranslationXs; 229 private float[] mNewTranslationYs; 230 private float[] mNewScaleXs; 231 private float[] mNewScaleYs; 232 private float[] mNewBackgroundAlphas; 233 private float[] mNewBackgroundAlphaMultipliers; 234 private float[] mNewAlphas; 235 private float[] mNewRotationYs; 236 private float mTransitionProgress; 237 238 /** 239 * Used to inflate the Workspace from XML. 240 * 241 * @param context The application's context. 242 * @param attrs The attributes set containing the Workspace's customization values. 243 */ 244 public Workspace(Context context, AttributeSet attrs) { 245 this(context, attrs, 0); 246 } 247 248 /** 249 * Used to inflate the Workspace from XML. 250 * 251 * @param context The application's context. 252 * @param attrs The attributes set containing the Workspace's customization values. 253 * @param defStyle Unused. 254 */ 255 public Workspace(Context context, AttributeSet attrs, int defStyle) { 256 super(context, attrs, defStyle); 257 mContentIsRefreshable = false; 258 259 // With workspace, data is available straight from the get-go 260 setDataIsReady(); 261 262 mFadeInAdjacentScreens = 263 getResources().getBoolean(R.bool.config_workspaceFadeAdjacentScreens); 264 mWallpaperManager = WallpaperManager.getInstance(context); 265 266 int cellCountX = DEFAULT_CELL_COUNT_X; 267 int cellCountY = DEFAULT_CELL_COUNT_Y; 268 269 TypedArray a = context.obtainStyledAttributes(attrs, 270 R.styleable.Workspace, defStyle, 0); 271 272 final Resources res = context.getResources(); 273 if (LauncherApplication.isScreenLarge()) { 274 // Determine number of rows/columns dynamically 275 // TODO: This code currently fails on tablets with an aspect ratio < 1.3. 276 // Around that ratio we should make cells the same size in portrait and 277 // landscape 278 TypedArray actionBarSizeTypedArray = 279 context.obtainStyledAttributes(new int[] { android.R.attr.actionBarSize }); 280 final float actionBarHeight = actionBarSizeTypedArray.getDimension(0, 0f); 281 final float systemBarHeight = res.getDimension(R.dimen.status_bar_height); 282 final float smallestScreenDim = res.getConfiguration().smallestScreenWidthDp; 283 284 cellCountX = 1; 285 while (CellLayout.widthInPortrait(res, cellCountX + 1) <= smallestScreenDim) { 286 cellCountX++; 287 } 288 289 cellCountY = 1; 290 while (actionBarHeight + CellLayout.heightInLandscape(res, cellCountY + 1) 291 <= smallestScreenDim - systemBarHeight) { 292 cellCountY++; 293 } 294 } 295 296 mSpringLoadedShrinkFactor = 297 res.getInteger(R.integer.config_workspaceSpringLoadShrinkPercentage) / 100.0f; 298 mDragViewMultiplyColor = res.getColor(R.color.drag_view_multiply_color); 299 300 // if the value is manually specified, use that instead 301 cellCountX = a.getInt(R.styleable.Workspace_cellCountX, cellCountX); 302 cellCountY = a.getInt(R.styleable.Workspace_cellCountY, cellCountY); 303 mDefaultPage = a.getInt(R.styleable.Workspace_defaultScreen, 1); 304 a.recycle(); 305 306 LauncherModel.updateWorkspaceLayoutCells(cellCountX, cellCountY); 307 setHapticFeedbackEnabled(false); 308 309 mLauncher = (Launcher) context; 310 initWorkspace(); 311 312 // Disable multitouch across the workspace/all apps/customize tray 313 setMotionEventSplittingEnabled(true); 314 } 315 316 public void buildPageHardwareLayers() { 317 if (getWindowToken() != null) { 318 final int childCount = getChildCount(); 319 for (int i = 0; i < childCount; i++) { 320 CellLayout cl = (CellLayout) getChildAt(i); 321 cl.buildChildrenLayer(); 322 } 323 } 324 } 325 326 public void onDragStart(DragSource source, Object info, int dragAction) { 327 mIsDragOccuring = true; 328 updateChildrenLayersEnabled(); 329 mLauncher.lockScreenOrientationOnLargeUI(); 330 } 331 332 public void onDragEnd() { 333 mIsDragOccuring = false; 334 updateChildrenLayersEnabled(); 335 mLauncher.unlockScreenOrientationOnLargeUI(); 336 } 337 338 /** 339 * Initializes various states for this workspace. 340 */ 341 protected void initWorkspace() { 342 Context context = getContext(); 343 mCurrentPage = mDefaultPage; 344 Launcher.setScreen(mCurrentPage); 345 LauncherApplication app = (LauncherApplication)context.getApplicationContext(); 346 mIconCache = app.getIconCache(); 347 mExternalDragOutlinePaint.setAntiAlias(true); 348 setWillNotDraw(false); 349 setChildrenDrawnWithCacheEnabled(true); 350 351 try { 352 final Resources res = getResources(); 353 mBackground = res.getDrawable(R.drawable.apps_customize_bg); 354 } catch (Resources.NotFoundException e) { 355 // In this case, we will skip drawing background protection 356 } 357 358 mChangeStateAnimationListener = new AnimatorListenerAdapter() { 359 @Override 360 public void onAnimationStart(Animator animation) { 361 mIsSwitchingState = true; 362 } 363 364 @Override 365 public void onAnimationEnd(Animator animation) { 366 mIsSwitchingState = false; 367 mWallpaperOffset.setOverrideHorizontalCatchupConstant(false); 368 mAnimator = null; 369 updateChildrenLayersEnabled(); 370 } 371 }; 372 373 mSnapVelocity = 600; 374 mWallpaperOffset = new WallpaperOffsetInterpolator(); 375 Display display = mLauncher.getWindowManager().getDefaultDisplay(); 376 mDisplayWidth = display.getWidth(); 377 mDisplayHeight = display.getHeight(); 378 mWallpaperTravelWidth = (int) (mDisplayWidth * 379 wallpaperTravelToScreenWidthRatio(mDisplayWidth, mDisplayHeight)); 380 } 381 382 @Override 383 protected int getScrollMode() { 384 return SmoothPagedView.X_LARGE_MODE; 385 } 386 387 @Override 388 protected void onViewAdded(View child) { 389 super.onViewAdded(child); 390 if (!(child instanceof CellLayout)) { 391 throw new IllegalArgumentException("A Workspace can only have CellLayout children."); 392 } 393 CellLayout cl = ((CellLayout) child); 394 cl.setOnInterceptTouchListener(this); 395 cl.setClickable(true); 396 cl.enableHardwareLayers(); 397 } 398 399 /** 400 * @return The open folder on the current screen, or null if there is none 401 */ 402 Folder getOpenFolder() { 403 DragLayer dragLayer = mLauncher.getDragLayer(); 404 int count = dragLayer.getChildCount(); 405 for (int i = 0; i < count; i++) { 406 View child = dragLayer.getChildAt(i); 407 if (child instanceof Folder) { 408 Folder folder = (Folder) child; 409 if (folder.getInfo().opened) 410 return folder; 411 } 412 } 413 return null; 414 } 415 416 boolean isTouchActive() { 417 return mTouchState != TOUCH_STATE_REST; 418 } 419 420 /** 421 * Adds the specified child in the specified screen. The position and dimension of 422 * the child are defined by x, y, spanX and spanY. 423 * 424 * @param child The child to add in one of the workspace's screens. 425 * @param screen The screen in which to add the child. 426 * @param x The X position of the child in the screen's grid. 427 * @param y The Y position of the child in the screen's grid. 428 * @param spanX The number of cells spanned horizontally by the child. 429 * @param spanY The number of cells spanned vertically by the child. 430 */ 431 void addInScreen(View child, long container, int screen, int x, int y, int spanX, int spanY) { 432 addInScreen(child, container, screen, x, y, spanX, spanY, false); 433 } 434 435 /** 436 * Adds the specified child in the specified screen. The position and dimension of 437 * the child are defined by x, y, spanX and spanY. 438 * 439 * @param child The child to add in one of the workspace's screens. 440 * @param screen The screen in which to add the child. 441 * @param x The X position of the child in the screen's grid. 442 * @param y The Y position of the child in the screen's grid. 443 * @param spanX The number of cells spanned horizontally by the child. 444 * @param spanY The number of cells spanned vertically by the child. 445 * @param insert When true, the child is inserted at the beginning of the children list. 446 */ 447 void addInScreen(View child, long container, int screen, int x, int y, int spanX, int spanY, 448 boolean insert) { 449 if (container == LauncherSettings.Favorites.CONTAINER_DESKTOP) { 450 if (screen < 0 || screen >= getChildCount()) { 451 Log.e(TAG, "The screen must be >= 0 and < " + getChildCount() 452 + " (was " + screen + "); skipping child"); 453 return; 454 } 455 } 456 457 final CellLayout layout; 458 if (container == LauncherSettings.Favorites.CONTAINER_HOTSEAT) { 459 layout = mLauncher.getHotseat().getLayout(); 460 child.setOnKeyListener(null); 461 462 // Hide folder title in the hotseat 463 if (child instanceof FolderIcon) { 464 ((FolderIcon) child).setTextVisible(false); 465 } 466 467 if (screen < 0) { 468 screen = mLauncher.getHotseat().getOrderInHotseat(x, y); 469 } else { 470 // Note: We do this to ensure that the hotseat is always laid out in the orientation 471 // of the hotseat in order regardless of which orientation they were added 472 x = mLauncher.getHotseat().getCellXFromOrder(screen); 473 y = mLauncher.getHotseat().getCellYFromOrder(screen); 474 } 475 } else { 476 // Show folder title if not in the hotseat 477 if (child instanceof FolderIcon) { 478 ((FolderIcon) child).setTextVisible(true); 479 } 480 481 layout = (CellLayout) getChildAt(screen); 482 child.setOnKeyListener(new IconKeyEventListener()); 483 } 484 485 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) child.getLayoutParams(); 486 if (lp == null) { 487 lp = new CellLayout.LayoutParams(x, y, spanX, spanY); 488 } else { 489 lp.cellX = x; 490 lp.cellY = y; 491 lp.cellHSpan = spanX; 492 lp.cellVSpan = spanY; 493 } 494 495 if (spanX < 0 && spanY < 0) { 496 lp.isLockedToGrid = false; 497 } 498 499 // Get the canonical child id to uniquely represent this view in this screen 500 int childId = LauncherModel.getCellLayoutChildId(container, screen, x, y, spanX, spanY); 501 boolean markCellsAsOccupied = !(child instanceof Folder); 502 if (!layout.addViewToCellLayout(child, insert ? 0 : -1, childId, lp, markCellsAsOccupied)) { 503 // TODO: This branch occurs when the workspace is adding views 504 // outside of the defined grid 505 // maybe we should be deleting these items from the LauncherModel? 506 Log.w(TAG, "Failed to add to item at (" + lp.cellX + "," + lp.cellY + ") to CellLayout"); 507 } 508 509 if (!(child instanceof Folder)) { 510 child.setHapticFeedbackEnabled(false); 511 child.setOnLongClickListener(mLongClickListener); 512 } 513 if (child instanceof DropTarget) { 514 mDragController.addDropTarget((DropTarget) child); 515 } 516 } 517 518 /** 519 * Check if the point (x, y) hits a given page. 520 */ 521 private boolean hitsPage(int index, float x, float y) { 522 final View page = getChildAt(index); 523 if (page != null) { 524 float[] localXY = { x, y }; 525 mapPointFromSelfToChild(page, localXY); 526 return (localXY[0] >= 0 && localXY[0] < page.getWidth() 527 && localXY[1] >= 0 && localXY[1] < page.getHeight()); 528 } 529 return false; 530 } 531 532 @Override 533 protected boolean hitsPreviousPage(float x, float y) { 534 // mNextPage is set to INVALID_PAGE whenever we are stationary. 535 // Calculating "next page" this way ensures that you scroll to whatever page you tap on 536 final int current = (mNextPage == INVALID_PAGE) ? mCurrentPage : mNextPage; 537 538 // Only allow tap to next page on large devices, where there's significant margin outside 539 // the active workspace 540 return LauncherApplication.isScreenLarge() && hitsPage(current - 1, x, y); 541 } 542 543 @Override 544 protected boolean hitsNextPage(float x, float y) { 545 // mNextPage is set to INVALID_PAGE whenever we are stationary. 546 // Calculating "next page" this way ensures that you scroll to whatever page you tap on 547 final int current = (mNextPage == INVALID_PAGE) ? mCurrentPage : mNextPage; 548 549 // Only allow tap to next page on large devices, where there's significant margin outside 550 // the active workspace 551 return LauncherApplication.isScreenLarge() && hitsPage(current + 1, x, y); 552 } 553 554 /** 555 * Called directly from a CellLayout (not by the framework), after we've been added as a 556 * listener via setOnInterceptTouchEventListener(). This allows us to tell the CellLayout 557 * that it should intercept touch events, which is not something that is normally supported. 558 */ 559 @Override 560 public boolean onTouch(View v, MotionEvent event) { 561 return (isSmall() || mIsSwitchingState); 562 } 563 564 public boolean isSwitchingState() { 565 return mIsSwitchingState; 566 } 567 568 protected void onWindowVisibilityChanged (int visibility) { 569 mLauncher.onWindowVisibilityChanged(visibility); 570 } 571 572 @Override 573 public boolean dispatchUnhandledMove(View focused, int direction) { 574 if (isSmall() || mIsSwitchingState) { 575 // when the home screens are shrunken, shouldn't allow side-scrolling 576 return false; 577 } 578 return super.dispatchUnhandledMove(focused, direction); 579 } 580 581 @Override 582 public boolean onInterceptTouchEvent(MotionEvent ev) { 583 switch (ev.getAction() & MotionEvent.ACTION_MASK) { 584 case MotionEvent.ACTION_DOWN: 585 mXDown = ev.getX(); 586 mYDown = ev.getY(); 587 break; 588 case MotionEvent.ACTION_POINTER_UP: 589 case MotionEvent.ACTION_UP: 590 if (mTouchState == TOUCH_STATE_REST) { 591 final CellLayout currentPage = (CellLayout) getChildAt(mCurrentPage); 592 if (!currentPage.lastDownOnOccupiedCell()) { 593 onWallpaperTap(ev); 594 } 595 } 596 } 597 return super.onInterceptTouchEvent(ev); 598 } 599 600 @Override 601 protected void determineScrollingStart(MotionEvent ev) { 602 if (!isSmall() && !mIsSwitchingState) { 603 float deltaX = Math.abs(ev.getX() - mXDown); 604 float deltaY = Math.abs(ev.getY() - mYDown); 605 606 if (Float.compare(deltaX, 0f) == 0) return; 607 608 float slope = deltaY / deltaX; 609 float theta = (float) Math.atan(slope); 610 611 if (deltaX > mTouchSlop || deltaY > mTouchSlop) { 612 cancelCurrentPageLongPress(); 613 } 614 615 if (theta > MAX_SWIPE_ANGLE) { 616 // Above MAX_SWIPE_ANGLE, we don't want to ever start scrolling the workspace 617 return; 618 } else if (theta > START_DAMPING_TOUCH_SLOP_ANGLE) { 619 // Above START_DAMPING_TOUCH_SLOP_ANGLE and below MAX_SWIPE_ANGLE, we want to 620 // increase the touch slop to make it harder to begin scrolling the workspace. This 621 // results in vertically scrolling widgets to more easily. The higher the angle, the 622 // more we increase touch slop. 623 theta -= START_DAMPING_TOUCH_SLOP_ANGLE; 624 float extraRatio = (float) 625 Math.sqrt((theta / (MAX_SWIPE_ANGLE - START_DAMPING_TOUCH_SLOP_ANGLE))); 626 super.determineScrollingStart(ev, 1 + TOUCH_SLOP_DAMPING_FACTOR * extraRatio); 627 } else { 628 // Below START_DAMPING_TOUCH_SLOP_ANGLE, we don't do anything special 629 super.determineScrollingStart(ev); 630 } 631 } 632 } 633 634 @Override 635 protected boolean isScrollingIndicatorEnabled() { 636 return mState != State.SPRING_LOADED; 637 } 638 639 protected void onPageBeginMoving() { 640 super.onPageBeginMoving(); 641 mIsStaticWallpaper = mWallpaperManager.getWallpaperInfo() == null; 642 643 if (isHardwareAccelerated()) { 644 updateChildrenLayersEnabled(); 645 } else { 646 if (mNextPage != INVALID_PAGE) { 647 // we're snapping to a particular screen 648 enableChildrenCache(mCurrentPage, mNextPage); 649 } else { 650 // this is when user is actively dragging a particular screen, they might 651 // swipe it either left or right (but we won't advance by more than one screen) 652 enableChildrenCache(mCurrentPage - 1, mCurrentPage + 1); 653 } 654 } 655 656 // Only show page outlines as we pan if we are on large screen 657 if (LauncherApplication.isScreenLarge()) { 658 showOutlines(); 659 } 660 } 661 662 protected void onPageEndMoving() { 663 super.onPageEndMoving(); 664 665 if (isHardwareAccelerated()) { 666 updateChildrenLayersEnabled(); 667 } else { 668 clearChildrenCache(); 669 } 670 671 // Hide the outlines, as long as we're not dragging 672 if (!mDragController.dragging()) { 673 // Only hide page outlines as we pan if we are on large screen 674 if (LauncherApplication.isScreenLarge()) { 675 hideOutlines(); 676 } 677 } 678 mOverScrollMaxBackgroundAlpha = 0.0f; 679 mOverScrollPageIndex = -1; 680 681 if (mDelayedResizeRunnable != null) { 682 mDelayedResizeRunnable.run(); 683 mDelayedResizeRunnable = null; 684 } 685 } 686 687 @Override 688 protected void notifyPageSwitchListener() { 689 super.notifyPageSwitchListener(); 690 Launcher.setScreen(mCurrentPage); 691 }; 692 693 // As a ratio of screen height, the total distance we want the parallax effect to span 694 // vertically 695 private float wallpaperTravelToScreenHeightRatio(int width, int height) { 696 return 1.1f; 697 } 698 699 // As a ratio of screen height, the total distance we want the parallax effect to span 700 // horizontally 701 private float wallpaperTravelToScreenWidthRatio(int width, int height) { 702 float aspectRatio = width / (float) height; 703 704 // At an aspect ratio of 16/10, the wallpaper parallax effect should span 1.5 * screen width 705 // At an aspect ratio of 10/16, the wallpaper parallax effect should span 1.2 * screen width 706 // We will use these two data points to extrapolate how much the wallpaper parallax effect 707 // to span (ie travel) at any aspect ratio: 708 709 final float ASPECT_RATIO_LANDSCAPE = 16/10f; 710 final float ASPECT_RATIO_PORTRAIT = 10/16f; 711 final float WALLPAPER_WIDTH_TO_SCREEN_RATIO_LANDSCAPE = 1.5f; 712 final float WALLPAPER_WIDTH_TO_SCREEN_RATIO_PORTRAIT = 1.2f; 713 714 // To find out the desired width at different aspect ratios, we use the following two 715 // formulas, where the coefficient on x is the aspect ratio (width/height): 716 // (16/10)x + y = 1.5 717 // (10/16)x + y = 1.2 718 // We solve for x and y and end up with a final formula: 719 final float x = 720 (WALLPAPER_WIDTH_TO_SCREEN_RATIO_LANDSCAPE - WALLPAPER_WIDTH_TO_SCREEN_RATIO_PORTRAIT) / 721 (ASPECT_RATIO_LANDSCAPE - ASPECT_RATIO_PORTRAIT); 722 final float y = WALLPAPER_WIDTH_TO_SCREEN_RATIO_PORTRAIT - x * ASPECT_RATIO_PORTRAIT; 723 return x * aspectRatio + y; 724 } 725 726 // The range of scroll values for Workspace 727 private int getScrollRange() { 728 return getChildOffset(getChildCount() - 1) - getChildOffset(0); 729 } 730 731 protected void setWallpaperDimension() { 732 DisplayMetrics displayMetrics = new DisplayMetrics(); 733 mLauncher.getWindowManager().getDefaultDisplay().getRealMetrics(displayMetrics); 734 final int maxDim = Math.max(displayMetrics.widthPixels, displayMetrics.heightPixels); 735 final int minDim = Math.min(displayMetrics.widthPixels, displayMetrics.heightPixels); 736 737 // We need to ensure that there is enough extra space in the wallpaper for the intended 738 // parallax effects 739 if (LauncherApplication.isScreenLarge()) { 740 mWallpaperWidth = (int) (maxDim * wallpaperTravelToScreenWidthRatio(maxDim, minDim)); 741 mWallpaperHeight = (int)(maxDim * wallpaperTravelToScreenHeightRatio(maxDim, minDim)); 742 } else { 743 mWallpaperWidth = Math.max((int) (minDim * WALLPAPER_SCREENS_SPAN), maxDim); 744 mWallpaperHeight = maxDim; 745 } 746 new Thread("setWallpaperDimension") { 747 public void run() { 748 mWallpaperManager.suggestDesiredDimensions(mWallpaperWidth, mWallpaperHeight); 749 } 750 }.start(); 751 } 752 753 public void setVerticalWallpaperOffset(float offset) { 754 mWallpaperOffset.setFinalY(offset); 755 } 756 public float getVerticalWallpaperOffset() { 757 return mWallpaperOffset.getCurrY(); 758 } 759 public void setHorizontalWallpaperOffset(float offset) { 760 mWallpaperOffset.setFinalX(offset); 761 } 762 public float getHorizontalWallpaperOffset() { 763 return mWallpaperOffset.getCurrX(); 764 } 765 766 private float wallpaperOffsetForCurrentScroll() { 767 final boolean overScrollWallpaper = LauncherApplication.isScreenLarge(); 768 final boolean isStaticWallpaper = mIsStaticWallpaper; 769 // The wallpaper travel width is how far, from left to right, the wallpaper will move 770 // at this orientation (for example, in portrait mode we don't move all the way to the 771 // edges of the wallpaper, or otherwise the parallax effect would be too strong) 772 int wallpaperTravelWidth = mWallpaperTravelWidth; 773 if (!overScrollWallpaper || !isStaticWallpaper) { 774 wallpaperTravelWidth = mWallpaperWidth; 775 } 776 777 // Set wallpaper offset steps (1 / (number of screens - 1)) 778 // We have 3 vertical offset states (centered, and then top/bottom aligned 779 // for all apps/customize) 780 if (LauncherApplication.isScreenLarge()) { 781 mWallpaperManager.setWallpaperOffsetSteps(1.0f / (getChildCount() - 1), 1.0f / (3 - 1)); 782 } else { 783 mWallpaperManager.setWallpaperOffsetSteps(1.0f / (getChildCount() - 1), 1.0f); 784 } 785 786 // For the purposes of computing the scrollRange and overScrollOffset, we ignore 787 // assume that mLayoutScale is 1. This means that when we're in spring-loaded mode, 788 // there's no discrepancy between the wallpaper offset for a given page. 789 float layoutScale = mLayoutScale; 790 mLayoutScale = 1f; 791 int scrollRange = getScrollRange(); 792 float scrollProgressOffset = 0; 793 794 // Account for over scroll: you only see the absolute edge of the wallpaper if 795 // you over scroll as far as you can in landscape mode. Only do this for static wallpapers 796 // because live wallpapers (and probably 3rd party wallpaper providers) rely on the offset 797 // being even intervals from 0 to 1 (eg [0, 0.25, 0.5, 0.75, 1]) 798 if (isStaticWallpaper && overScrollWallpaper) { 799 int overScrollOffset = (int) (maxOverScroll() * mDisplayWidth); 800 scrollProgressOffset += overScrollOffset / (float) getScrollRange(); 801 scrollRange += 2 * overScrollOffset; 802 } 803 804 // Again, we adjust the wallpaper offset to be consistent between values of mLayoutScale 805 806 float adjustedScrollX = overScrollWallpaper ? 807 mScrollX : Math.max(0, Math.min(mScrollX, mMaxScrollX)); 808 adjustedScrollX *= mWallpaperScrollRatio; 809 mLayoutScale = layoutScale; 810 811 float scrollProgress = 812 adjustedScrollX / (float) scrollRange + scrollProgressOffset; 813 float offsetInDips = wallpaperTravelWidth * scrollProgress + 814 (mWallpaperWidth - wallpaperTravelWidth) / 2; // center it 815 float offset = offsetInDips / (float) mWallpaperWidth; 816 return offset; 817 } 818 private void syncWallpaperOffsetWithScroll() { 819 final boolean enableWallpaperEffects = isHardwareAccelerated(); 820 if (enableWallpaperEffects) { 821 mWallpaperOffset.setFinalX(wallpaperOffsetForCurrentScroll()); 822 } 823 } 824 825 public void updateWallpaperOffsetImmediately() { 826 mUpdateWallpaperOffsetImmediately = true; 827 } 828 829 private void updateWallpaperOffsets() { 830 boolean updateNow = false; 831 boolean keepUpdating = true; 832 if (mUpdateWallpaperOffsetImmediately) { 833 updateNow = true; 834 keepUpdating = false; 835 mWallpaperOffset.jumpToFinal(); 836 mUpdateWallpaperOffsetImmediately = false; 837 } else { 838 updateNow = keepUpdating = mWallpaperOffset.computeScrollOffset(); 839 } 840 if (updateNow) { 841 if (mWindowToken != null) { 842 mWallpaperManager.setWallpaperOffsets(mWindowToken, 843 mWallpaperOffset.getCurrX(), mWallpaperOffset.getCurrY()); 844 } 845 } 846 if (keepUpdating) { 847 fastInvalidate(); 848 } 849 } 850 851 @Override 852 protected void updateCurrentPageScroll() { 853 super.updateCurrentPageScroll(); 854 computeWallpaperScrollRatio(mCurrentPage); 855 } 856 857 @Override 858 protected void snapToPage(int whichPage) { 859 super.snapToPage(whichPage); 860 computeWallpaperScrollRatio(whichPage); 861 } 862 863 private void computeWallpaperScrollRatio(int page) { 864 // Here, we determine what the desired scroll would be with and without a layout scale, 865 // and compute a ratio between the two. This allows us to adjust the wallpaper offset 866 // as though there is no layout scale. 867 float layoutScale = mLayoutScale; 868 int scaled = getChildOffset(page) - getRelativeChildOffset(page); 869 mLayoutScale = 1.0f; 870 float unscaled = getChildOffset(page) - getRelativeChildOffset(page); 871 mLayoutScale = layoutScale; 872 if (scaled > 0) { 873 mWallpaperScrollRatio = (1.0f * unscaled) / scaled; 874 } else { 875 mWallpaperScrollRatio = 1f; 876 } 877 } 878 879 class WallpaperOffsetInterpolator { 880 float mFinalHorizontalWallpaperOffset = 0.0f; 881 float mFinalVerticalWallpaperOffset = 0.5f; 882 float mHorizontalWallpaperOffset = 0.0f; 883 float mVerticalWallpaperOffset = 0.5f; 884 long mLastWallpaperOffsetUpdateTime; 885 boolean mIsMovingFast; 886 boolean mOverrideHorizontalCatchupConstant; 887 float mHorizontalCatchupConstant = 0.35f; 888 float mVerticalCatchupConstant = 0.35f; 889 890 public WallpaperOffsetInterpolator() { 891 mVerticalWallpaperOffset = LauncherApplication.isScreenLarge() ? 0.5f : 0f; 892 mFinalVerticalWallpaperOffset = LauncherApplication.isScreenLarge() ? 0.5f : 0f; 893 } 894 895 public void setOverrideHorizontalCatchupConstant(boolean override) { 896 mOverrideHorizontalCatchupConstant = override; 897 } 898 899 public void setHorizontalCatchupConstant(float f) { 900 mHorizontalCatchupConstant = f; 901 } 902 903 public void setVerticalCatchupConstant(float f) { 904 mVerticalCatchupConstant = f; 905 } 906 907 public boolean computeScrollOffset() { 908 if (Float.compare(mHorizontalWallpaperOffset, mFinalHorizontalWallpaperOffset) == 0 && 909 Float.compare(mVerticalWallpaperOffset, mFinalVerticalWallpaperOffset) == 0) { 910 mIsMovingFast = false; 911 return false; 912 } 913 boolean isLandscape = mDisplayWidth > mDisplayHeight; 914 915 long currentTime = System.currentTimeMillis(); 916 long timeSinceLastUpdate = currentTime - mLastWallpaperOffsetUpdateTime; 917 timeSinceLastUpdate = Math.min((long) (1000/30f), timeSinceLastUpdate); 918 timeSinceLastUpdate = Math.max(1L, timeSinceLastUpdate); 919 920 float xdiff = Math.abs(mFinalHorizontalWallpaperOffset - mHorizontalWallpaperOffset); 921 if (!mIsMovingFast && xdiff > 0.07) { 922 mIsMovingFast = true; 923 } 924 925 float fractionToCatchUpIn1MsHorizontal; 926 if (mOverrideHorizontalCatchupConstant) { 927 fractionToCatchUpIn1MsHorizontal = mHorizontalCatchupConstant; 928 } else if (mIsMovingFast) { 929 fractionToCatchUpIn1MsHorizontal = isLandscape ? 0.5f : 0.75f; 930 } else { 931 // slow 932 fractionToCatchUpIn1MsHorizontal = isLandscape ? 0.27f : 0.5f; 933 } 934 float fractionToCatchUpIn1MsVertical = mVerticalCatchupConstant; 935 936 fractionToCatchUpIn1MsHorizontal /= 33f; 937 fractionToCatchUpIn1MsVertical /= 33f; 938 939 final float UPDATE_THRESHOLD = 0.00001f; 940 float hOffsetDelta = mFinalHorizontalWallpaperOffset - mHorizontalWallpaperOffset; 941 float vOffsetDelta = mFinalVerticalWallpaperOffset - mVerticalWallpaperOffset; 942 boolean jumpToFinalValue = Math.abs(hOffsetDelta) < UPDATE_THRESHOLD && 943 Math.abs(vOffsetDelta) < UPDATE_THRESHOLD; 944 945 // Don't have any lag between workspace and wallpaper on non-large devices 946 if (!LauncherApplication.isScreenLarge() || jumpToFinalValue) { 947 mHorizontalWallpaperOffset = mFinalHorizontalWallpaperOffset; 948 mVerticalWallpaperOffset = mFinalVerticalWallpaperOffset; 949 } else { 950 float percentToCatchUpVertical = 951 Math.min(1.0f, timeSinceLastUpdate * fractionToCatchUpIn1MsVertical); 952 float percentToCatchUpHorizontal = 953 Math.min(1.0f, timeSinceLastUpdate * fractionToCatchUpIn1MsHorizontal); 954 mHorizontalWallpaperOffset += percentToCatchUpHorizontal * hOffsetDelta; 955 mVerticalWallpaperOffset += percentToCatchUpVertical * vOffsetDelta; 956 } 957 958 mLastWallpaperOffsetUpdateTime = System.currentTimeMillis(); 959 return true; 960 } 961 962 public float getCurrX() { 963 return mHorizontalWallpaperOffset; 964 } 965 966 public float getFinalX() { 967 return mFinalHorizontalWallpaperOffset; 968 } 969 970 public float getCurrY() { 971 return mVerticalWallpaperOffset; 972 } 973 974 public float getFinalY() { 975 return mFinalVerticalWallpaperOffset; 976 } 977 978 public void setFinalX(float x) { 979 mFinalHorizontalWallpaperOffset = Math.max(0f, Math.min(x, 1.0f)); 980 } 981 982 public void setFinalY(float y) { 983 mFinalVerticalWallpaperOffset = Math.max(0f, Math.min(y, 1.0f)); 984 } 985 986 public void jumpToFinal() { 987 mHorizontalWallpaperOffset = mFinalHorizontalWallpaperOffset; 988 mVerticalWallpaperOffset = mFinalVerticalWallpaperOffset; 989 } 990 } 991 992 @Override 993 public void computeScroll() { 994 super.computeScroll(); 995 syncWallpaperOffsetWithScroll(); 996 } 997 998 void showOutlines() { 999 if (!isSmall() && !mIsSwitchingState) { 1000 if (mChildrenOutlineFadeOutAnimation != null) mChildrenOutlineFadeOutAnimation.cancel(); 1001 if (mChildrenOutlineFadeInAnimation != null) mChildrenOutlineFadeInAnimation.cancel(); 1002 mChildrenOutlineFadeInAnimation = ObjectAnimator.ofFloat(this, "childrenOutlineAlpha", 1.0f); 1003 mChildrenOutlineFadeInAnimation.setDuration(CHILDREN_OUTLINE_FADE_IN_DURATION); 1004 mChildrenOutlineFadeInAnimation.start(); 1005 } 1006 } 1007 1008 void hideOutlines() { 1009 if (!isSmall() && !mIsSwitchingState) { 1010 if (mChildrenOutlineFadeInAnimation != null) mChildrenOutlineFadeInAnimation.cancel(); 1011 if (mChildrenOutlineFadeOutAnimation != null) mChildrenOutlineFadeOutAnimation.cancel(); 1012 mChildrenOutlineFadeOutAnimation = ObjectAnimator.ofFloat(this, "childrenOutlineAlpha", 0.0f); 1013 mChildrenOutlineFadeOutAnimation.setDuration(CHILDREN_OUTLINE_FADE_OUT_DURATION); 1014 mChildrenOutlineFadeOutAnimation.setStartDelay(CHILDREN_OUTLINE_FADE_OUT_DELAY); 1015 mChildrenOutlineFadeOutAnimation.start(); 1016 } 1017 } 1018 1019 public void showOutlinesTemporarily() { 1020 if (!mIsPageMoving && !isTouchActive()) { 1021 snapToPage(mCurrentPage); 1022 } 1023 } 1024 1025 public void setChildrenOutlineAlpha(float alpha) { 1026 mChildrenOutlineAlpha = alpha; 1027 for (int i = 0; i < getChildCount(); i++) { 1028 CellLayout cl = (CellLayout) getChildAt(i); 1029 cl.setBackgroundAlpha(alpha); 1030 } 1031 } 1032 1033 public float getChildrenOutlineAlpha() { 1034 return mChildrenOutlineAlpha; 1035 } 1036 1037 void disableBackground() { 1038 mDrawBackground = false; 1039 } 1040 void enableBackground() { 1041 mDrawBackground = true; 1042 } 1043 1044 private void animateBackgroundGradient(float finalAlpha, boolean animated) { 1045 if (mBackground == null) return; 1046 if (mBackgroundFadeInAnimation != null) { 1047 mBackgroundFadeInAnimation.cancel(); 1048 mBackgroundFadeInAnimation = null; 1049 } 1050 if (mBackgroundFadeOutAnimation != null) { 1051 mBackgroundFadeOutAnimation.cancel(); 1052 mBackgroundFadeOutAnimation = null; 1053 } 1054 float startAlpha = getBackgroundAlpha(); 1055 if (finalAlpha != startAlpha) { 1056 if (animated) { 1057 mBackgroundFadeOutAnimation = ValueAnimator.ofFloat(startAlpha, finalAlpha); 1058 mBackgroundFadeOutAnimation.addUpdateListener(new AnimatorUpdateListener() { 1059 public void onAnimationUpdate(ValueAnimator animation) { 1060 setBackgroundAlpha(((Float) animation.getAnimatedValue()).floatValue()); 1061 } 1062 }); 1063 mBackgroundFadeOutAnimation.setInterpolator(new DecelerateInterpolator(1.5f)); 1064 mBackgroundFadeOutAnimation.setDuration(BACKGROUND_FADE_OUT_DURATION); 1065 mBackgroundFadeOutAnimation.start(); 1066 } else { 1067 setBackgroundAlpha(finalAlpha); 1068 } 1069 } 1070 } 1071 1072 public void setBackgroundAlpha(float alpha) { 1073 if (alpha != mBackgroundAlpha) { 1074 mBackgroundAlpha = alpha; 1075 invalidate(); 1076 } 1077 } 1078 1079 public float getBackgroundAlpha() { 1080 return mBackgroundAlpha; 1081 } 1082 1083 /** 1084 * Due to 3D transformations, if two CellLayouts are theoretically touching each other, 1085 * on the xy plane, when one is rotated along the y-axis, the gap between them is perceived 1086 * as being larger. This method computes what offset the rotated view should be translated 1087 * in order to minimize this perceived gap. 1088 * @param degrees Angle of the view 1089 * @param width Width of the view 1090 * @param height Height of the view 1091 * @return Offset to be used in a View.setTranslationX() call 1092 */ 1093 private float getOffsetXForRotation(float degrees, int width, int height) { 1094 mMatrix.reset(); 1095 mCamera.save(); 1096 mCamera.rotateY(Math.abs(degrees)); 1097 mCamera.getMatrix(mMatrix); 1098 mCamera.restore(); 1099 1100 mMatrix.preTranslate(-width * 0.5f, -height * 0.5f); 1101 mMatrix.postTranslate(width * 0.5f, height * 0.5f); 1102 mTempFloat2[0] = width; 1103 mTempFloat2[1] = height; 1104 mMatrix.mapPoints(mTempFloat2); 1105 return (width - mTempFloat2[0]) * (degrees > 0.0f ? 1.0f : -1.0f); 1106 } 1107 1108 float backgroundAlphaInterpolator(float r) { 1109 float pivotA = 0.1f; 1110 float pivotB = 0.4f; 1111 if (r < pivotA) { 1112 return 0; 1113 } else if (r > pivotB) { 1114 return 1.0f; 1115 } else { 1116 return (r - pivotA)/(pivotB - pivotA); 1117 } 1118 } 1119 1120 float overScrollBackgroundAlphaInterpolator(float r) { 1121 float threshold = 0.08f; 1122 1123 if (r > mOverScrollMaxBackgroundAlpha) { 1124 mOverScrollMaxBackgroundAlpha = r; 1125 } else if (r < mOverScrollMaxBackgroundAlpha) { 1126 r = mOverScrollMaxBackgroundAlpha; 1127 } 1128 1129 return Math.min(r / threshold, 1.0f); 1130 } 1131 1132 private void screenScrolledLargeUI(int screenCenter) { 1133 for (int i = 0; i < getChildCount(); i++) { 1134 CellLayout cl = (CellLayout) getChildAt(i); 1135 if (cl != null) { 1136 float scrollProgress = getScrollProgress(screenCenter, cl, i); 1137 float rotation = WORKSPACE_ROTATION * scrollProgress; 1138 float translationX = getOffsetXForRotation(rotation, cl.getWidth(), cl.getHeight()); 1139 1140 // If the current page (i) is being over scrolled, we use a different 1141 // set of rules for setting the background alpha multiplier. 1142 if (!isSmall()) { 1143 if ((mScrollX < 0 && i == 0) || (mScrollX > mMaxScrollX && 1144 i == getChildCount() -1 )) { 1145 cl.setBackgroundAlphaMultiplier( 1146 overScrollBackgroundAlphaInterpolator(Math.abs(scrollProgress))); 1147 mOverScrollPageIndex = i; 1148 } else if (mOverScrollPageIndex != i) { 1149 cl.setBackgroundAlphaMultiplier( 1150 backgroundAlphaInterpolator(Math.abs(scrollProgress))); 1151 } 1152 } 1153 cl.setTranslationX(translationX); 1154 cl.setRotationY(rotation); 1155 } 1156 } 1157 } 1158 1159 private void resetCellLayoutTransforms(CellLayout cl, boolean left) { 1160 cl.setTranslationX(0); 1161 cl.setRotationY(0); 1162 cl.setOverScrollAmount(0, left); 1163 cl.setPivotX(cl.getMeasuredWidth() / 2); 1164 cl.setPivotY(cl.getMeasuredHeight() / 2); 1165 } 1166 1167 private void screenScrolledStandardUI(int screenCenter) { 1168 if (mScrollX < 0 || mScrollX > mMaxScrollX) { 1169 int index = mScrollX < 0 ? 0 : getChildCount() - 1; 1170 CellLayout cl = (CellLayout) getChildAt(index); 1171 float scrollProgress = getScrollProgress(screenCenter, cl, index); 1172 cl.setOverScrollAmount(Math.abs(scrollProgress), index == 0); 1173 float translationX = index == 0 ? mScrollX : - (mMaxScrollX - mScrollX); 1174 float rotation = - WORKSPACE_OVERSCROLL_ROTATION * scrollProgress; 1175 cl.setCameraDistance(mDensity * CAMERA_DISTANCE); 1176 cl.setPivotX(cl.getMeasuredWidth() * (index == 0 ? 0.75f : 0.25f)); 1177 cl.setTranslationX(translationX); 1178 cl.setRotationY(rotation); 1179 } else { 1180 // We don't want to mess with the translations during transitions 1181 if (!isSwitchingState()) { 1182 resetCellLayoutTransforms((CellLayout) getChildAt(0), true); 1183 resetCellLayoutTransforms((CellLayout) getChildAt(getChildCount() - 1), false); 1184 } 1185 } 1186 } 1187 1188 @Override 1189 protected void screenScrolled(int screenCenter) { 1190 super.screenScrolled(screenCenter); 1191 if (LauncherApplication.isScreenLarge()) { 1192 screenScrolledLargeUI(screenCenter); 1193 } else { 1194 screenScrolledStandardUI(screenCenter); 1195 } 1196 } 1197 1198 @Override 1199 protected void overScroll(float amount) { 1200 if (LauncherApplication.isScreenLarge()) { 1201 dampedOverScroll(amount); 1202 } else { 1203 acceleratedOverScroll(amount); 1204 } 1205 } 1206 1207 protected void onAttachedToWindow() { 1208 super.onAttachedToWindow(); 1209 mWindowToken = getWindowToken(); 1210 computeScroll(); 1211 mDragController.setWindowToken(mWindowToken); 1212 } 1213 1214 protected void onDetachedFromWindow() { 1215 mWindowToken = null; 1216 } 1217 1218 @Override 1219 protected void onLayout(boolean changed, int left, int top, int right, int bottom) { 1220 if (mFirstLayout && mCurrentPage >= 0 && mCurrentPage < getChildCount()) { 1221 mUpdateWallpaperOffsetImmediately = true; 1222 } 1223 super.onLayout(changed, left, top, right, bottom); 1224 1225 // if shrinkToBottom() is called on initialization, it has to be deferred 1226 // until after the first call to onLayout so that it has the correct width 1227 if (mSwitchStateAfterFirstLayout) { 1228 mSwitchStateAfterFirstLayout = false; 1229 // shrink can trigger a synchronous onLayout call, so we 1230 // post this to avoid a stack overflow / tangled onLayout calls 1231 post(new Runnable() { 1232 public void run() { 1233 changeState(mStateAfterFirstLayout, false); 1234 } 1235 }); 1236 } 1237 } 1238 1239 @Override 1240 protected void onDraw(Canvas canvas) { 1241 updateWallpaperOffsets(); 1242 1243 // Draw the background gradient if necessary 1244 if (mBackground != null && mBackgroundAlpha > 0.0f && mDrawBackground) { 1245 int alpha = (int) (mBackgroundAlpha * 255); 1246 mBackground.setAlpha(alpha); 1247 mBackground.setBounds(mScrollX, 0, mScrollX + getMeasuredWidth(), 1248 getMeasuredHeight()); 1249 mBackground.draw(canvas); 1250 } 1251 1252 super.onDraw(canvas); 1253 } 1254 1255 @Override 1256 protected void dispatchDraw(Canvas canvas) { 1257 super.dispatchDraw(canvas); 1258 1259 if (mInScrollArea && !LauncherApplication.isScreenLarge()) { 1260 final int width = getWidth(); 1261 final int height = getHeight(); 1262 final int pageHeight = getChildAt(0).getHeight(); 1263 1264 // Set the height of the outline to be the height of the page 1265 final int offset = (height - pageHeight - mPaddingTop - mPaddingBottom) / 2; 1266 final int paddingTop = mPaddingTop + offset; 1267 final int paddingBottom = mPaddingBottom + offset; 1268 1269 final CellLayout leftPage = (CellLayout) getChildAt(mCurrentPage - 1); 1270 final CellLayout rightPage = (CellLayout) getChildAt(mCurrentPage + 1); 1271 1272 if (leftPage != null && leftPage.getIsDragOverlapping()) { 1273 final Drawable d = getResources().getDrawable(R.drawable.page_hover_left_holo); 1274 d.setBounds(mScrollX, paddingTop, mScrollX + d.getIntrinsicWidth(), 1275 height - paddingBottom); 1276 d.draw(canvas); 1277 } else if (rightPage != null && rightPage.getIsDragOverlapping()) { 1278 final Drawable d = getResources().getDrawable(R.drawable.page_hover_right_holo); 1279 d.setBounds(mScrollX + width - d.getIntrinsicWidth(), paddingTop, mScrollX + width, 1280 height - paddingBottom); 1281 d.draw(canvas); 1282 } 1283 } 1284 } 1285 1286 @Override 1287 protected boolean onRequestFocusInDescendants(int direction, Rect previouslyFocusedRect) { 1288 if (!mLauncher.isAllAppsVisible()) { 1289 final Folder openFolder = getOpenFolder(); 1290 if (openFolder != null) { 1291 return openFolder.requestFocus(direction, previouslyFocusedRect); 1292 } else { 1293 return super.onRequestFocusInDescendants(direction, previouslyFocusedRect); 1294 } 1295 } 1296 return false; 1297 } 1298 1299 @Override 1300 public int getDescendantFocusability() { 1301 if (isSmall()) { 1302 return ViewGroup.FOCUS_BLOCK_DESCENDANTS; 1303 } 1304 return super.getDescendantFocusability(); 1305 } 1306 1307 @Override 1308 public void addFocusables(ArrayList<View> views, int direction, int focusableMode) { 1309 if (!mLauncher.isAllAppsVisible()) { 1310 final Folder openFolder = getOpenFolder(); 1311 if (openFolder != null) { 1312 openFolder.addFocusables(views, direction); 1313 } else { 1314 super.addFocusables(views, direction, focusableMode); 1315 } 1316 } 1317 } 1318 1319 public boolean isSmall() { 1320 return mState == State.SMALL || mState == State.SPRING_LOADED; 1321 } 1322 1323 void enableChildrenCache(int fromPage, int toPage) { 1324 if (fromPage > toPage) { 1325 final int temp = fromPage; 1326 fromPage = toPage; 1327 toPage = temp; 1328 } 1329 1330 final int screenCount = getChildCount(); 1331 1332 fromPage = Math.max(fromPage, 0); 1333 toPage = Math.min(toPage, screenCount - 1); 1334 1335 for (int i = fromPage; i <= toPage; i++) { 1336 final CellLayout layout = (CellLayout) getChildAt(i); 1337 layout.setChildrenDrawnWithCacheEnabled(true); 1338 layout.setChildrenDrawingCacheEnabled(true); 1339 } 1340 } 1341 1342 void clearChildrenCache() { 1343 final int screenCount = getChildCount(); 1344 for (int i = 0; i < screenCount; i++) { 1345 final CellLayout layout = (CellLayout) getChildAt(i); 1346 layout.setChildrenDrawnWithCacheEnabled(false); 1347 // In software mode, we don't want the items to continue to be drawn into bitmaps 1348 if (!isHardwareAccelerated()) { 1349 layout.setChildrenDrawingCacheEnabled(false); 1350 } 1351 } 1352 } 1353 1354 private void updateChildrenLayersEnabled() { 1355 boolean small = isSmall() || mIsSwitchingState; 1356 boolean dragging = mAnimatingViewIntoPlace || mIsDragOccuring; 1357 boolean enableChildrenLayers = small || dragging || isPageMoving(); 1358 1359 if (enableChildrenLayers != mChildrenLayersEnabled) { 1360 mChildrenLayersEnabled = enableChildrenLayers; 1361 for (int i = 0; i < getPageCount(); i++) { 1362 ((ViewGroup)getChildAt(i)).setChildrenLayersEnabled(enableChildrenLayers); 1363 } 1364 } 1365 } 1366 1367 protected void onWallpaperTap(MotionEvent ev) { 1368 final int[] position = mTempCell; 1369 getLocationOnScreen(position); 1370 1371 int pointerIndex = ev.getActionIndex(); 1372 position[0] += (int) ev.getX(pointerIndex); 1373 position[1] += (int) ev.getY(pointerIndex); 1374 1375 mWallpaperManager.sendWallpaperCommand(getWindowToken(), 1376 ev.getAction() == MotionEvent.ACTION_UP 1377 ? WallpaperManager.COMMAND_TAP : WallpaperManager.COMMAND_SECONDARY_TAP, 1378 position[0], position[1], 0, null); 1379 } 1380 1381 @Override 1382 protected void updateAdjacentPagesAlpha() { 1383 if (!isSmall()) { 1384 super.updateAdjacentPagesAlpha(); 1385 } 1386 } 1387 1388 /* 1389 * This interpolator emulates the rate at which the perceived scale of an object changes 1390 * as its distance from a camera increases. When this interpolator is applied to a scale 1391 * animation on a view, it evokes the sense that the object is shrinking due to moving away 1392 * from the camera. 1393 */ 1394 static class ZInterpolator implements TimeInterpolator { 1395 private float focalLength; 1396 1397 public ZInterpolator(float foc) { 1398 focalLength = foc; 1399 } 1400 1401 public float getInterpolation(float input) { 1402 return (1.0f - focalLength / (focalLength + input)) / 1403 (1.0f - focalLength / (focalLength + 1.0f)); 1404 } 1405 } 1406 1407 /* 1408 * The exact reverse of ZInterpolator. 1409 */ 1410 static class InverseZInterpolator implements TimeInterpolator { 1411 private ZInterpolator zInterpolator; 1412 public InverseZInterpolator(float foc) { 1413 zInterpolator = new ZInterpolator(foc); 1414 } 1415 public float getInterpolation(float input) { 1416 return 1 - zInterpolator.getInterpolation(1 - input); 1417 } 1418 } 1419 1420 /* 1421 * ZInterpolator compounded with an ease-out. 1422 */ 1423 static class ZoomOutInterpolator implements TimeInterpolator { 1424 private final ZInterpolator zInterpolator = new ZInterpolator(0.2f); 1425 private final DecelerateInterpolator decelerate = new DecelerateInterpolator(1.8f); 1426 1427 public float getInterpolation(float input) { 1428 return decelerate.getInterpolation(zInterpolator.getInterpolation(input)); 1429 } 1430 } 1431 1432 /* 1433 * InvereZInterpolator compounded with an ease-out. 1434 */ 1435 static class ZoomInInterpolator implements TimeInterpolator { 1436 private final InverseZInterpolator inverseZInterpolator = new InverseZInterpolator(0.35f); 1437 private final DecelerateInterpolator decelerate = new DecelerateInterpolator(3.0f); 1438 1439 public float getInterpolation(float input) { 1440 return decelerate.getInterpolation(inverseZInterpolator.getInterpolation(input)); 1441 } 1442 } 1443 1444 private final ZoomInInterpolator mZoomInInterpolator = new ZoomInInterpolator(); 1445 1446 /* 1447 * 1448 * We call these methods (onDragStartedWithItemSpans/onDragStartedWithSize) whenever we 1449 * start a drag in Launcher, regardless of whether the drag has ever entered the Workspace 1450 * 1451 * These methods mark the appropriate pages as accepting drops (which alters their visual 1452 * appearance). 1453 * 1454 */ 1455 public void onDragStartedWithItem(View v) { 1456 final Canvas canvas = new Canvas(); 1457 1458 // We need to add extra padding to the bitmap to make room for the glow effect 1459 final int bitmapPadding = HolographicOutlineHelper.MAX_OUTER_BLUR_RADIUS; 1460 1461 // The outline is used to visualize where the item will land if dropped 1462 mDragOutline = createDragOutline(v, canvas, bitmapPadding); 1463 } 1464 1465 public void onDragStartedWithItemSpans(int spanX, int spanY, Bitmap b) { 1466 final Canvas canvas = new Canvas(); 1467 1468 // We need to add extra padding to the bitmap to make room for the glow effect 1469 final int bitmapPadding = HolographicOutlineHelper.MAX_OUTER_BLUR_RADIUS; 1470 1471 CellLayout cl = (CellLayout) getChildAt(0); 1472 1473 int[] size = cl.cellSpansToSize(spanX, spanY); 1474 1475 // The outline is used to visualize where the item will land if dropped 1476 mDragOutline = createDragOutline(b, canvas, bitmapPadding, size[0], size[1]); 1477 } 1478 1479 // we call this method whenever a drag and drop in Launcher finishes, even if Workspace was 1480 // never dragged over 1481 public void onDragStopped(boolean success) { 1482 // In the success case, DragController has already called onDragExit() 1483 if (!success) { 1484 doDragExit(null); 1485 } 1486 } 1487 1488 public void exitWidgetResizeMode() { 1489 DragLayer dragLayer = mLauncher.getDragLayer(); 1490 dragLayer.clearAllResizeFrames(); 1491 } 1492 1493 private void initAnimationArrays() { 1494 final int childCount = getChildCount(); 1495 if (mOldTranslationXs != null) return; 1496 mOldTranslationXs = new float[childCount]; 1497 mOldTranslationYs = new float[childCount]; 1498 mOldScaleXs = new float[childCount]; 1499 mOldScaleYs = new float[childCount]; 1500 mOldBackgroundAlphas = new float[childCount]; 1501 mOldBackgroundAlphaMultipliers = new float[childCount]; 1502 mOldAlphas = new float[childCount]; 1503 mOldRotationYs = new float[childCount]; 1504 mNewTranslationXs = new float[childCount]; 1505 mNewTranslationYs = new float[childCount]; 1506 mNewScaleXs = new float[childCount]; 1507 mNewScaleYs = new float[childCount]; 1508 mNewBackgroundAlphas = new float[childCount]; 1509 mNewBackgroundAlphaMultipliers = new float[childCount]; 1510 mNewAlphas = new float[childCount]; 1511 mNewRotationYs = new float[childCount]; 1512 } 1513 1514 public void changeState(State shrinkState) { 1515 changeState(shrinkState, true); 1516 } 1517 1518 void changeState(final State state, boolean animated) { 1519 changeState(state, animated, 0); 1520 } 1521 1522 void changeState(final State state, boolean animated, int delay) { 1523 if (mFirstLayout) { 1524 // (mFirstLayout == "first layout has not happened yet") 1525 // cancel any pending shrinks that were set earlier 1526 mSwitchStateAfterFirstLayout = false; 1527 mStateAfterFirstLayout = state; 1528 return; 1529 } 1530 1531 if (mAnimator != null) { 1532 mAnimator.cancel(); 1533 } 1534 1535 // Stop any scrolling, move to the current page right away 1536 setCurrentPage((mNextPage != INVALID_PAGE) ? mNextPage : mCurrentPage); 1537 1538 float finalScaleFactor = 1.0f; 1539 float finalBackgroundAlpha = (state == State.SPRING_LOADED) ? 1.0f : 0f; 1540 boolean normalState = false; 1541 State oldState = mState; 1542 mState = state; 1543 boolean zoomIn = true; 1544 1545 if (state != State.NORMAL) { 1546 finalScaleFactor = mSpringLoadedShrinkFactor - (state == State.SMALL ? 0.1f : 0); 1547 if (oldState == State.NORMAL && state == State.SMALL) { 1548 zoomIn = false; 1549 if (animated) { 1550 hideScrollingIndicator(true); 1551 } 1552 setLayoutScale(finalScaleFactor); 1553 updateChildrenLayersEnabled(); 1554 } else { 1555 finalBackgroundAlpha = 1.0f; 1556 setLayoutScale(finalScaleFactor); 1557 } 1558 } else { 1559 setLayoutScale(1.0f); 1560 normalState = true; 1561 } 1562 1563 float translationX = 0; 1564 float translationY = 0; 1565 1566 mAnimator = new AnimatorSet(); 1567 1568 final int screenCount = getChildCount(); 1569 initAnimationArrays(); 1570 1571 final int duration = zoomIn ? 1572 getResources().getInteger(R.integer.config_workspaceUnshrinkTime) : 1573 getResources().getInteger(R.integer.config_appsCustomizeWorkspaceShrinkTime); 1574 for (int i = 0; i < screenCount; i++) { 1575 final CellLayout cl = (CellLayout)getChildAt(i); 1576 float finalAlphaValue = 0f; 1577 float rotation = 0f; 1578 1579 // Set the final alpha depending on whether we are fading side pages. On phone ui, 1580 // we don't do any of the rotation, or the fading alpha in portrait. See the 1581 // ctor and screenScrolled(). 1582 if (mFadeInAdjacentScreens && normalState) { 1583 finalAlphaValue = (i == mCurrentPage) ? 1f : 0f; 1584 } else { 1585 finalAlphaValue = 1f; 1586 } 1587 1588 if (LauncherApplication.isScreenLarge()) { 1589 if (i < mCurrentPage) { 1590 rotation = WORKSPACE_ROTATION; 1591 } else if (i > mCurrentPage) { 1592 rotation = -WORKSPACE_ROTATION; 1593 } 1594 } 1595 1596 float finalAlphaMultiplierValue = 1f; 1597 // If the screen is not xlarge, then don't rotate the CellLayouts 1598 // NOTE: If we don't update the side pages alpha, then we should not hide the side 1599 // pages. see unshrink(). 1600 if (LauncherApplication.isScreenLarge()) { 1601 translationX = getOffsetXForRotation(rotation, cl.getWidth(), cl.getHeight()); 1602 } 1603 1604 mOldAlphas[i] = cl.getAlpha(); 1605 mNewAlphas[i] = finalAlphaValue; 1606 if (animated) { 1607 mOldTranslationXs[i] = cl.getTranslationX(); 1608 mOldTranslationYs[i] = cl.getTranslationY(); 1609 mOldScaleXs[i] = cl.getScaleX(); 1610 mOldScaleYs[i] = cl.getScaleY(); 1611 mOldBackgroundAlphas[i] = cl.getBackgroundAlpha(); 1612 mOldBackgroundAlphaMultipliers[i] = cl.getBackgroundAlphaMultiplier(); 1613 mOldRotationYs[i] = cl.getRotationY(); 1614 1615 mNewTranslationXs[i] = translationX; 1616 mNewTranslationYs[i] = translationY; 1617 mNewScaleXs[i] = finalScaleFactor; 1618 mNewScaleYs[i] = finalScaleFactor; 1619 mNewBackgroundAlphas[i] = finalBackgroundAlpha; 1620 mNewBackgroundAlphaMultipliers[i] = finalAlphaMultiplierValue; 1621 mNewRotationYs[i] = rotation; 1622 } else { 1623 cl.setTranslationX(translationX); 1624 cl.setTranslationY(translationY); 1625 cl.setScaleX(finalScaleFactor); 1626 cl.setScaleY(finalScaleFactor); 1627 cl.setBackgroundAlpha(0.0f); 1628 cl.setBackgroundAlphaMultiplier(finalAlphaMultiplierValue); 1629 cl.setAlpha(finalAlphaValue); 1630 cl.setRotationY(rotation); 1631 mChangeStateAnimationListener.onAnimationEnd(null); 1632 } 1633 } 1634 1635 if (animated) { 1636 ValueAnimator animWithInterpolator = 1637 ValueAnimator.ofFloat(0f, 1f).setDuration(duration); 1638 1639 if (zoomIn) { 1640 animWithInterpolator.setInterpolator(mZoomInInterpolator); 1641 } 1642 1643 animWithInterpolator.addUpdateListener(new LauncherAnimatorUpdateListener() { 1644 public void onAnimationUpdate(float a, float b) { 1645 mTransitionProgress = b; 1646 if (b == 0f) { 1647 // an optimization, but not required 1648 return; 1649 } 1650 invalidate(); 1651 for (int i = 0; i < screenCount; i++) { 1652 final CellLayout cl = (CellLayout) getChildAt(i); 1653 cl.fastInvalidate(); 1654 cl.setFastTranslationX(a * mOldTranslationXs[i] + b * mNewTranslationXs[i]); 1655 cl.setFastTranslationY(a * mOldTranslationYs[i] + b * mNewTranslationYs[i]); 1656 cl.setFastScaleX(a * mOldScaleXs[i] + b * mNewScaleXs[i]); 1657 cl.setFastScaleY(a * mOldScaleYs[i] + b * mNewScaleYs[i]); 1658 cl.setFastBackgroundAlpha( 1659 a * mOldBackgroundAlphas[i] + b * mNewBackgroundAlphas[i]); 1660 cl.setBackgroundAlphaMultiplier(a * mOldBackgroundAlphaMultipliers[i] + 1661 b * mNewBackgroundAlphaMultipliers[i]); 1662 cl.setFastAlpha(a * mOldAlphas[i] + b * mNewAlphas[i]); 1663 } 1664 } 1665 }); 1666 1667 ValueAnimator rotationAnim = 1668 ValueAnimator.ofFloat(0f, 1f).setDuration(duration); 1669 rotationAnim.setInterpolator(new DecelerateInterpolator(2.0f)); 1670 rotationAnim.addUpdateListener(new LauncherAnimatorUpdateListener() { 1671 public void onAnimationUpdate(float a, float b) { 1672 if (b == 0f) { 1673 // an optimization, but not required 1674 return; 1675 } 1676 for (int i = 0; i < screenCount; i++) { 1677 final CellLayout cl = (CellLayout) getChildAt(i); 1678 cl.setFastRotationY(a * mOldRotationYs[i] + b * mNewRotationYs[i]); 1679 } 1680 } 1681 }); 1682 1683 mAnimator.playTogether(animWithInterpolator, rotationAnim); 1684 mAnimator.setStartDelay(delay); 1685 // If we call this when we're not animated, onAnimationEnd is never called on 1686 // the listener; make sure we only use the listener when we're actually animating 1687 mAnimator.addListener(mChangeStateAnimationListener); 1688 mAnimator.start(); 1689 } 1690 1691 if (state == State.SPRING_LOADED) { 1692 // Right now we're covered by Apps Customize 1693 // Show the background gradient immediately, so the gradient will 1694 // be showing once AppsCustomize disappears 1695 animateBackgroundGradient(getResources().getInteger( 1696 R.integer.config_appsCustomizeSpringLoadedBgAlpha) / 100f, false); 1697 } else { 1698 // Fade the background gradient away 1699 animateBackgroundGradient(0f, true); 1700 } 1701 } 1702 1703 /** 1704 * Draw the View v into the given Canvas. 1705 * 1706 * @param v the view to draw 1707 * @param destCanvas the canvas to draw on 1708 * @param padding the horizontal and vertical padding to use when drawing 1709 */ 1710 private void drawDragView(View v, Canvas destCanvas, int padding, boolean pruneToDrawable) { 1711 final Rect clipRect = mTempRect; 1712 v.getDrawingRect(clipRect); 1713 1714 boolean textVisible = false; 1715 1716 destCanvas.save(); 1717 if (v instanceof TextView && pruneToDrawable) { 1718 Drawable d = ((TextView) v).getCompoundDrawables()[1]; 1719 clipRect.set(0, 0, d.getIntrinsicWidth() + padding, d.getIntrinsicHeight() + padding); 1720 destCanvas.translate(padding / 2, padding / 2); 1721 d.draw(destCanvas); 1722 } else { 1723 if (v instanceof FolderIcon) { 1724 // For FolderIcons the text can bleed into the icon area, and so we need to 1725 // hide the text completely (which can't be achieved by clipping). 1726 if (((FolderIcon) v).getTextVisible()) { 1727 ((FolderIcon) v).setTextVisible(false); 1728 textVisible = true; 1729 } 1730 } else if (v instanceof BubbleTextView) { 1731 final BubbleTextView tv = (BubbleTextView) v; 1732 clipRect.bottom = tv.getExtendedPaddingTop() - (int) BubbleTextView.PADDING_V + 1733 tv.getLayout().getLineTop(0); 1734 } else if (v instanceof TextView) { 1735 final TextView tv = (TextView) v; 1736 clipRect.bottom = tv.getExtendedPaddingTop() - tv.getCompoundDrawablePadding() + 1737 tv.getLayout().getLineTop(0); 1738 } 1739 destCanvas.translate(-v.getScrollX() + padding / 2, -v.getScrollY() + padding / 2); 1740 destCanvas.clipRect(clipRect, Op.REPLACE); 1741 v.draw(destCanvas); 1742 1743 // Restore text visibility of FolderIcon if necessary 1744 if (textVisible) { 1745 ((FolderIcon) v).setTextVisible(true); 1746 } 1747 } 1748 destCanvas.restore(); 1749 } 1750 1751 /** 1752 * Returns a new bitmap to show when the given View is being dragged around. 1753 * Responsibility for the bitmap is transferred to the caller. 1754 */ 1755 public Bitmap createDragBitmap(View v, Canvas canvas, int padding) { 1756 final int outlineColor = getResources().getColor(android.R.color.holo_blue_light); 1757 Bitmap b; 1758 1759 if (v instanceof TextView) { 1760 Drawable d = ((TextView) v).getCompoundDrawables()[1]; 1761 b = Bitmap.createBitmap(d.getIntrinsicWidth() + padding, 1762 d.getIntrinsicHeight() + padding, Bitmap.Config.ARGB_8888); 1763 } else { 1764 b = Bitmap.createBitmap( 1765 v.getWidth() + padding, v.getHeight() + padding, Bitmap.Config.ARGB_8888); 1766 } 1767 1768 canvas.setBitmap(b); 1769 drawDragView(v, canvas, padding, true); 1770 mOutlineHelper.applyOuterBlur(b, canvas, outlineColor); 1771 canvas.drawColor(mDragViewMultiplyColor, PorterDuff.Mode.MULTIPLY); 1772 canvas.setBitmap(null); 1773 1774 return b; 1775 } 1776 1777 /** 1778 * Returns a new bitmap to be used as the object outline, e.g. to visualize the drop location. 1779 * Responsibility for the bitmap is transferred to the caller. 1780 */ 1781 private Bitmap createDragOutline(View v, Canvas canvas, int padding) { 1782 final int outlineColor = getResources().getColor(android.R.color.holo_blue_light); 1783 final Bitmap b = Bitmap.createBitmap( 1784 v.getWidth() + padding, v.getHeight() + padding, Bitmap.Config.ARGB_8888); 1785 1786 canvas.setBitmap(b); 1787 drawDragView(v, canvas, padding, false); 1788 mOutlineHelper.applyMediumExpensiveOutlineWithBlur(b, canvas, outlineColor, outlineColor); 1789 canvas.setBitmap(null); 1790 return b; 1791 } 1792 1793 /** 1794 * Returns a new bitmap to be used as the object outline, e.g. to visualize the drop location. 1795 * Responsibility for the bitmap is transferred to the caller. 1796 */ 1797 private Bitmap createDragOutline(Bitmap orig, Canvas canvas, int padding, int w, int h) { 1798 final int outlineColor = getResources().getColor(android.R.color.holo_blue_light); 1799 final Bitmap b = Bitmap.createBitmap(w, h, Bitmap.Config.ARGB_8888); 1800 canvas.setBitmap(b); 1801 1802 Rect src = new Rect(0, 0, orig.getWidth(), orig.getHeight()); 1803 float scaleFactor = Math.min((w - padding) / (float) orig.getWidth(), 1804 (h - padding) / (float) orig.getHeight()); 1805 int scaledWidth = (int) (scaleFactor * orig.getWidth()); 1806 int scaledHeight = (int) (scaleFactor * orig.getHeight()); 1807 Rect dst = new Rect(0, 0, scaledWidth, scaledHeight); 1808 1809 // center the image 1810 dst.offset((w - scaledWidth) / 2, (h - scaledHeight) / 2); 1811 1812 Paint p = new Paint(); 1813 p.setFilterBitmap(true); 1814 canvas.drawBitmap(orig, src, dst, p); 1815 mOutlineHelper.applyMediumExpensiveOutlineWithBlur(b, canvas, outlineColor, outlineColor); 1816 canvas.setBitmap(null); 1817 1818 return b; 1819 } 1820 1821 /** 1822 * Creates a drag outline to represent a drop (that we don't have the actual information for 1823 * yet). May be changed in the future to alter the drop outline slightly depending on the 1824 * clip description mime data. 1825 */ 1826 private Bitmap createExternalDragOutline(Canvas canvas, int padding) { 1827 Resources r = getResources(); 1828 final int outlineColor = r.getColor(android.R.color.holo_blue_light); 1829 final int iconWidth = r.getDimensionPixelSize(R.dimen.workspace_cell_width); 1830 final int iconHeight = r.getDimensionPixelSize(R.dimen.workspace_cell_height); 1831 final int rectRadius = r.getDimensionPixelSize(R.dimen.external_drop_icon_rect_radius); 1832 final int inset = (int) (Math.min(iconWidth, iconHeight) * 0.2f); 1833 final Bitmap b = Bitmap.createBitmap( 1834 iconWidth + padding, iconHeight + padding, Bitmap.Config.ARGB_8888); 1835 1836 canvas.setBitmap(b); 1837 canvas.drawRoundRect(new RectF(inset, inset, iconWidth - inset, iconHeight - inset), 1838 rectRadius, rectRadius, mExternalDragOutlinePaint); 1839 mOutlineHelper.applyMediumExpensiveOutlineWithBlur(b, canvas, outlineColor, outlineColor); 1840 canvas.setBitmap(null); 1841 return b; 1842 } 1843 1844 void startDrag(CellLayout.CellInfo cellInfo) { 1845 View child = cellInfo.cell; 1846 1847 // Make sure the drag was started by a long press as opposed to a long click. 1848 if (!child.isInTouchMode()) { 1849 return; 1850 } 1851 1852 mDragInfo = cellInfo; 1853 child.setVisibility(GONE); 1854 1855 child.clearFocus(); 1856 child.setPressed(false); 1857 1858 final Canvas canvas = new Canvas(); 1859 1860 // We need to add extra padding to the bitmap to make room for the glow effect 1861 final int bitmapPadding = HolographicOutlineHelper.MAX_OUTER_BLUR_RADIUS; 1862 1863 // The outline is used to visualize where the item will land if dropped 1864 mDragOutline = createDragOutline(child, canvas, bitmapPadding); 1865 beginDragShared(child, this); 1866 } 1867 1868 public void beginDragShared(View child, DragSource source) { 1869 // We need to add extra padding to the bitmap to make room for the glow effect 1870 final int bitmapPadding = HolographicOutlineHelper.MAX_OUTER_BLUR_RADIUS; 1871 1872 // The drag bitmap follows the touch point around on the screen 1873 final Bitmap b = createDragBitmap(child, new Canvas(), bitmapPadding); 1874 1875 final int bmpWidth = b.getWidth(); 1876 1877 mLauncher.getDragLayer().getLocationInDragLayer(child, mTempXY); 1878 final int dragLayerX = (int) mTempXY[0] + (child.getWidth() - bmpWidth) / 2; 1879 int dragLayerY = mTempXY[1] - bitmapPadding / 2; 1880 1881 Rect dragRect = null; 1882 if (child instanceof BubbleTextView) { 1883 int iconSize = getResources().getDimensionPixelSize(R.dimen.app_icon_size); 1884 int top = child.getPaddingTop(); 1885 int left = (bmpWidth - iconSize) / 2; 1886 int right = left + iconSize; 1887 int bottom = top + iconSize; 1888 dragLayerY += top; 1889 dragRect = new Rect(left, top, right, bottom); 1890 } else if (child instanceof FolderIcon) { 1891 int previewSize = getResources().getDimensionPixelSize(R.dimen.folder_preview_size); 1892 dragRect = new Rect(0, 0, child.getWidth(), previewSize); 1893 } 1894 1895 // Clear the pressed state if necessary 1896 if (child instanceof BubbleTextView) { 1897 BubbleTextView icon = (BubbleTextView) child; 1898 icon.clearPressedOrFocusedBackground(); 1899 } 1900 1901 mDragController.startDrag(b, dragLayerX, dragLayerY, source, child.getTag(), 1902 DragController.DRAG_ACTION_MOVE, dragRect); 1903 b.recycle(); 1904 } 1905 1906 void addApplicationShortcut(ShortcutInfo info, CellLayout target, long container, int screen, 1907 int cellX, int cellY, boolean insertAtFirst, int intersectX, int intersectY) { 1908 View view = mLauncher.createShortcut(R.layout.application, target, (ShortcutInfo) info); 1909 1910 final int[] cellXY = new int[2]; 1911 target.findCellForSpanThatIntersects(cellXY, 1, 1, intersectX, intersectY); 1912 addInScreen(view, container, screen, cellXY[0], cellXY[1], 1, 1, insertAtFirst); 1913 LauncherModel.addOrMoveItemInDatabase(mLauncher, info, container, screen, cellXY[0], 1914 cellXY[1]); 1915 } 1916 1917 public boolean transitionStateShouldAllowDrop() { 1918 return (!isSwitchingState() || mTransitionProgress > 0.5f); 1919 } 1920 1921 /** 1922 * {@inheritDoc} 1923 */ 1924 public boolean acceptDrop(DragObject d) { 1925 // If it's an external drop (e.g. from All Apps), check if it should be accepted 1926 if (d.dragSource != this) { 1927 // Don't accept the drop if we're not over a screen at time of drop 1928 if (mDragTargetLayout == null) { 1929 return false; 1930 } 1931 if (!transitionStateShouldAllowDrop()) return false; 1932 1933 mDragViewVisualCenter = getDragViewVisualCenter(d.x, d.y, d.xOffset, d.yOffset, 1934 d.dragView, mDragViewVisualCenter); 1935 1936 // We want the point to be mapped to the dragTarget. 1937 if (mLauncher.isHotseatLayout(mDragTargetLayout)) { 1938 mapPointFromSelfToSibling(mLauncher.getHotseat(), mDragViewVisualCenter); 1939 } else { 1940 mapPointFromSelfToChild(mDragTargetLayout, mDragViewVisualCenter, null); 1941 } 1942 1943 int spanX = 1; 1944 int spanY = 1; 1945 View ignoreView = null; 1946 if (mDragInfo != null) { 1947 final CellLayout.CellInfo dragCellInfo = mDragInfo; 1948 spanX = dragCellInfo.spanX; 1949 spanY = dragCellInfo.spanY; 1950 ignoreView = dragCellInfo.cell; 1951 } else { 1952 final ItemInfo dragInfo = (ItemInfo) d.dragInfo; 1953 spanX = dragInfo.spanX; 1954 spanY = dragInfo.spanY; 1955 } 1956 1957 mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], 1958 (int) mDragViewVisualCenter[1], spanX, spanY, mDragTargetLayout, mTargetCell); 1959 if (willCreateUserFolder((ItemInfo) d.dragInfo, mDragTargetLayout, mTargetCell, true)) { 1960 return true; 1961 } 1962 if (willAddToExistingUserFolder((ItemInfo) d.dragInfo, mDragTargetLayout, 1963 mTargetCell)) { 1964 return true; 1965 } 1966 1967 1968 // Don't accept the drop if there's no room for the item 1969 if (!mDragTargetLayout.findCellForSpanIgnoring(null, spanX, spanY, ignoreView)) { 1970 mLauncher.showOutOfSpaceMessage(); 1971 return false; 1972 } 1973 } 1974 return true; 1975 } 1976 1977 boolean willCreateUserFolder(ItemInfo info, CellLayout target, int[] targetCell, 1978 boolean considerTimeout) { 1979 View dropOverView = target.getChildAt(targetCell[0], targetCell[1]); 1980 1981 boolean hasntMoved = false; 1982 if (mDragInfo != null) { 1983 CellLayout cellParent = getParentCellLayoutForView(mDragInfo.cell); 1984 hasntMoved = (mDragInfo.cellX == targetCell[0] && 1985 mDragInfo.cellY == targetCell[1]) && (cellParent == target); 1986 } 1987 1988 if (dropOverView == null || hasntMoved || (considerTimeout && !mCreateUserFolderOnDrop)) { 1989 return false; 1990 } 1991 1992 boolean aboveShortcut = (dropOverView.getTag() instanceof ShortcutInfo); 1993 boolean willBecomeShortcut = 1994 (info.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPLICATION || 1995 info.itemType == LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT); 1996 1997 return (aboveShortcut && willBecomeShortcut); 1998 } 1999 2000 boolean willAddToExistingUserFolder(Object dragInfo, CellLayout target, int[] targetCell) { 2001 View dropOverView = target.getChildAt(targetCell[0], targetCell[1]); 2002 if (dropOverView instanceof FolderIcon) { 2003 FolderIcon fi = (FolderIcon) dropOverView; 2004 if (fi.acceptDrop(dragInfo)) { 2005 return true; 2006 } 2007 } 2008 return false; 2009 } 2010 2011 boolean createUserFolderIfNecessary(View newView, long container, CellLayout target, 2012 int[] targetCell, boolean external, DragView dragView, Runnable postAnimationRunnable) { 2013 View v = target.getChildAt(targetCell[0], targetCell[1]); 2014 boolean hasntMoved = false; 2015 if (mDragInfo != null) { 2016 CellLayout cellParent = getParentCellLayoutForView(mDragInfo.cell); 2017 hasntMoved = (mDragInfo.cellX == targetCell[0] && 2018 mDragInfo.cellY == targetCell[1]) && (cellParent == target); 2019 } 2020 2021 if (v == null || hasntMoved || !mCreateUserFolderOnDrop) return false; 2022 mCreateUserFolderOnDrop = false; 2023 final int screen = (targetCell == null) ? mDragInfo.screen : indexOfChild(target); 2024 2025 boolean aboveShortcut = (v.getTag() instanceof ShortcutInfo); 2026 boolean willBecomeShortcut = (newView.getTag() instanceof ShortcutInfo); 2027 2028 if (aboveShortcut && willBecomeShortcut) { 2029 ShortcutInfo sourceInfo = (ShortcutInfo) newView.getTag(); 2030 ShortcutInfo destInfo = (ShortcutInfo) v.getTag(); 2031 // if the drag started here, we need to remove it from the workspace 2032 if (!external) { 2033 getParentCellLayoutForView(mDragInfo.cell).removeView(mDragInfo.cell); 2034 } 2035 2036 Rect folderLocation = new Rect(); 2037 float scale = mLauncher.getDragLayer().getDescendantRectRelativeToSelf(v, folderLocation); 2038 target.removeView(v); 2039 2040 FolderIcon fi = 2041 mLauncher.addFolder(target, container, screen, targetCell[0], targetCell[1]); 2042 destInfo.cellX = -1; 2043 destInfo.cellY = -1; 2044 sourceInfo.cellX = -1; 2045 sourceInfo.cellY = -1; 2046 2047 // If the dragView is null, we can't animate 2048 boolean animate = dragView != null; 2049 if (animate) { 2050 fi.performCreateAnimation(destInfo, v, sourceInfo, dragView, folderLocation, scale, 2051 postAnimationRunnable); 2052 } else { 2053 fi.addItem(destInfo); 2054 fi.addItem(sourceInfo); 2055 } 2056 return true; 2057 } 2058 return false; 2059 } 2060 2061 boolean addToExistingFolderIfNecessary(View newView, CellLayout target, int[] targetCell, 2062 DragObject d, boolean external) { 2063 View dropOverView = target.getChildAt(targetCell[0], targetCell[1]); 2064 if (dropOverView instanceof FolderIcon) { 2065 FolderIcon fi = (FolderIcon) dropOverView; 2066 if (fi.acceptDrop(d.dragInfo)) { 2067 fi.onDrop(d); 2068 2069 // if the drag started here, we need to remove it from the workspace 2070 if (!external) { 2071 getParentCellLayoutForView(mDragInfo.cell).removeView(mDragInfo.cell); 2072 } 2073 return true; 2074 } 2075 } 2076 return false; 2077 } 2078 2079 public void onDrop(DragObject d) { 2080 mDragViewVisualCenter = getDragViewVisualCenter(d.x, d.y, d.xOffset, d.yOffset, d.dragView, 2081 mDragViewVisualCenter); 2082 2083 // We want the point to be mapped to the dragTarget. 2084 if (mDragTargetLayout != null) { 2085 if (mLauncher.isHotseatLayout(mDragTargetLayout)) { 2086 mapPointFromSelfToSibling(mLauncher.getHotseat(), mDragViewVisualCenter); 2087 } else { 2088 mapPointFromSelfToChild(mDragTargetLayout, mDragViewVisualCenter, null); 2089 } 2090 } 2091 2092 CellLayout dropTargetLayout = mDragTargetLayout; 2093 2094 int snapScreen = -1; 2095 if (d.dragSource != this) { 2096 final int[] touchXY = new int[] { (int) mDragViewVisualCenter[0], 2097 (int) mDragViewVisualCenter[1] }; 2098 onDropExternal(touchXY, d.dragInfo, dropTargetLayout, false, d); 2099 } else if (mDragInfo != null) { 2100 final View cell = mDragInfo.cell; 2101 2102 if (dropTargetLayout != null) { 2103 // Move internally 2104 boolean hasMovedLayouts = (getParentCellLayoutForView(cell) != dropTargetLayout); 2105 boolean hasMovedIntoHotseat = mLauncher.isHotseatLayout(dropTargetLayout); 2106 long container = hasMovedIntoHotseat ? 2107 LauncherSettings.Favorites.CONTAINER_HOTSEAT : 2108 LauncherSettings.Favorites.CONTAINER_DESKTOP; 2109 int screen = (mTargetCell[0] < 0) ? 2110 mDragInfo.screen : indexOfChild(dropTargetLayout); 2111 int spanX = mDragInfo != null ? mDragInfo.spanX : 1; 2112 int spanY = mDragInfo != null ? mDragInfo.spanY : 1; 2113 // First we find the cell nearest to point at which the item is 2114 // dropped, without any consideration to whether there is an item there. 2115 mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], (int) 2116 mDragViewVisualCenter[1], spanX, spanY, dropTargetLayout, mTargetCell); 2117 // If the item being dropped is a shortcut and the nearest drop 2118 // cell also contains a shortcut, then create a folder with the two shortcuts. 2119 if (!mInScrollArea && createUserFolderIfNecessary(cell, container, 2120 dropTargetLayout, mTargetCell, false, d.dragView, null)) { 2121 return; 2122 } 2123 2124 if (addToExistingFolderIfNecessary(cell, dropTargetLayout, mTargetCell, d, false)) { 2125 return; 2126 } 2127 2128 // Aside from the special case where we're dropping a shortcut onto a shortcut, 2129 // we need to find the nearest cell location that is vacant 2130 mTargetCell = findNearestVacantArea((int) mDragViewVisualCenter[0], 2131 (int) mDragViewVisualCenter[1], mDragInfo.spanX, mDragInfo.spanY, cell, 2132 dropTargetLayout, mTargetCell); 2133 2134 if (mCurrentPage != screen && !hasMovedIntoHotseat) { 2135 snapScreen = screen; 2136 snapToPage(screen); 2137 } 2138 2139 if (mTargetCell[0] >= 0 && mTargetCell[1] >= 0) { 2140 if (hasMovedLayouts) { 2141 // Reparent the view 2142 getParentCellLayoutForView(cell).removeView(cell); 2143 addInScreen(cell, container, screen, mTargetCell[0], mTargetCell[1], 2144 mDragInfo.spanX, mDragInfo.spanY); 2145 } 2146 2147 // update the item's position after drop 2148 final ItemInfo info = (ItemInfo) cell.getTag(); 2149 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) cell.getLayoutParams(); 2150 dropTargetLayout.onMove(cell, mTargetCell[0], mTargetCell[1]); 2151 lp.cellX = mTargetCell[0]; 2152 lp.cellY = mTargetCell[1]; 2153 cell.setId(LauncherModel.getCellLayoutChildId(container, mDragInfo.screen, 2154 mTargetCell[0], mTargetCell[1], mDragInfo.spanX, mDragInfo.spanY)); 2155 2156 if (container != LauncherSettings.Favorites.CONTAINER_HOTSEAT && 2157 cell instanceof LauncherAppWidgetHostView) { 2158 final CellLayout cellLayout = dropTargetLayout; 2159 // We post this call so that the widget has a chance to be placed 2160 // in its final location 2161 2162 final LauncherAppWidgetHostView hostView = (LauncherAppWidgetHostView) cell; 2163 AppWidgetProviderInfo pinfo = hostView.getAppWidgetInfo(); 2164 if (pinfo.resizeMode != AppWidgetProviderInfo.RESIZE_NONE) { 2165 final Runnable resizeRunnable = new Runnable() { 2166 public void run() { 2167 DragLayer dragLayer = mLauncher.getDragLayer(); 2168 dragLayer.addResizeFrame(info, hostView, cellLayout); 2169 } 2170 }; 2171 post(new Runnable() { 2172 public void run() { 2173 if (!isPageMoving()) { 2174 resizeRunnable.run(); 2175 } else { 2176 mDelayedResizeRunnable = resizeRunnable; 2177 } 2178 } 2179 }); 2180 } 2181 } 2182 2183 LauncherModel.moveItemInDatabase(mLauncher, info, container, screen, lp.cellX, 2184 lp.cellY); 2185 } 2186 } 2187 2188 final CellLayout parent = (CellLayout) cell.getParent().getParent(); 2189 2190 // Prepare it to be animated into its new position 2191 // This must be called after the view has been re-parented 2192 final Runnable disableHardwareLayersRunnable = new Runnable() { 2193 @Override 2194 public void run() { 2195 mAnimatingViewIntoPlace = false; 2196 updateChildrenLayersEnabled(); 2197 } 2198 }; 2199 mAnimatingViewIntoPlace = true; 2200 if (d.dragView.hasDrawn()) { 2201 int duration = snapScreen < 0 ? -1 : ADJACENT_SCREEN_DROP_DURATION; 2202 setFinalScrollForPageChange(snapScreen); 2203 mLauncher.getDragLayer().animateViewIntoPosition(d.dragView, cell, duration, 2204 disableHardwareLayersRunnable); 2205 resetFinalScrollForPageChange(snapScreen); 2206 } else { 2207 cell.setVisibility(VISIBLE); 2208 } 2209 parent.onDropChild(cell); 2210 } 2211 } 2212 2213 public void setFinalScrollForPageChange(int screen) { 2214 if (screen >= 0) { 2215 mSavedScrollX = getScrollX(); 2216 CellLayout cl = (CellLayout) getChildAt(screen); 2217 mSavedTranslationX = cl.getTranslationX(); 2218 mSavedRotationY = cl.getRotationY(); 2219 final int newX = getChildOffset(screen) - getRelativeChildOffset(screen); 2220 setScrollX(newX); 2221 cl.setTranslationX(0f); 2222 cl.setRotationY(0f); 2223 } 2224 } 2225 2226 public void resetFinalScrollForPageChange(int screen) { 2227 if (screen >= 0) { 2228 CellLayout cl = (CellLayout) getChildAt(screen); 2229 setScrollX(mSavedScrollX); 2230 cl.setTranslationX(mSavedTranslationX); 2231 cl.setRotationY(mSavedRotationY); 2232 } 2233 } 2234 2235 public void getViewLocationRelativeToSelf(View v, int[] location) { 2236 getLocationInWindow(location); 2237 int x = location[0]; 2238 int y = location[1]; 2239 2240 v.getLocationInWindow(location); 2241 int vX = location[0]; 2242 int vY = location[1]; 2243 2244 location[0] = vX - x; 2245 location[1] = vY - y; 2246 } 2247 2248 public void onDragEnter(DragObject d) { 2249 if (mDragTargetLayout != null) { 2250 mDragTargetLayout.setIsDragOverlapping(false); 2251 mDragTargetLayout.onDragExit(); 2252 } 2253 mDragTargetLayout = getCurrentDropLayout(); 2254 mDragTargetLayout.setIsDragOverlapping(true); 2255 mDragTargetLayout.onDragEnter(); 2256 2257 // Because we don't have space in the Phone UI (the CellLayouts run to the edge) we 2258 // don't need to show the outlines 2259 if (LauncherApplication.isScreenLarge()) { 2260 showOutlines(); 2261 } 2262 } 2263 2264 private void doDragExit(DragObject d) { 2265 // Clean up folders 2266 cleanupFolderCreation(d); 2267 2268 // Reset the scroll area and previous drag target 2269 onResetScrollArea(); 2270 2271 if (mDragTargetLayout != null) { 2272 mDragTargetLayout.setIsDragOverlapping(false); 2273 mDragTargetLayout.onDragExit(); 2274 } 2275 mLastDragOverView = null; 2276 2277 if (!mIsPageMoving) { 2278 hideOutlines(); 2279 } 2280 } 2281 2282 public void onDragExit(DragObject d) { 2283 doDragExit(d); 2284 } 2285 2286 public DropTarget getDropTargetDelegate(DragObject d) { 2287 return null; 2288 } 2289 2290 /** 2291 * Tests to see if the drop will be accepted by Launcher, and if so, includes additional data 2292 * in the returned structure related to the widgets that match the drop (or a null list if it is 2293 * a shortcut drop). If the drop is not accepted then a null structure is returned. 2294 */ 2295 private Pair<Integer, List<WidgetMimeTypeHandlerData>> validateDrag(DragEvent event) { 2296 final LauncherModel model = mLauncher.getModel(); 2297 final ClipDescription desc = event.getClipDescription(); 2298 final int mimeTypeCount = desc.getMimeTypeCount(); 2299 for (int i = 0; i < mimeTypeCount; ++i) { 2300 final String mimeType = desc.getMimeType(i); 2301 if (mimeType.equals(InstallShortcutReceiver.SHORTCUT_MIMETYPE)) { 2302 return new Pair<Integer, List<WidgetMimeTypeHandlerData>>(i, null); 2303 } else { 2304 final List<WidgetMimeTypeHandlerData> widgets = 2305 model.resolveWidgetsForMimeType(mContext, mimeType); 2306 if (widgets.size() > 0) { 2307 return new Pair<Integer, List<WidgetMimeTypeHandlerData>>(i, widgets); 2308 } 2309 } 2310 } 2311 return null; 2312 } 2313 2314 /** 2315 * Global drag and drop handler 2316 */ 2317 @Override 2318 public boolean onDragEvent(DragEvent event) { 2319 final ClipDescription desc = event.getClipDescription(); 2320 final CellLayout layout = (CellLayout) getChildAt(mCurrentPage); 2321 final int[] pos = new int[2]; 2322 layout.getLocationOnScreen(pos); 2323 // We need to offset the drag coordinates to layout coordinate space 2324 final int x = (int) event.getX() - pos[0]; 2325 final int y = (int) event.getY() - pos[1]; 2326 2327 switch (event.getAction()) { 2328 case DragEvent.ACTION_DRAG_STARTED: { 2329 // Validate this drag 2330 Pair<Integer, List<WidgetMimeTypeHandlerData>> test = validateDrag(event); 2331 if (test != null) { 2332 boolean isShortcut = (test.second == null); 2333 if (isShortcut) { 2334 // Check if we have enough space on this screen to add a new shortcut 2335 if (!layout.findCellForSpan(pos, 1, 1)) { 2336 mLauncher.showOutOfSpaceMessage(); 2337 return false; 2338 } 2339 } 2340 } else { 2341 // Show error message if we couldn't accept any of the items 2342 Toast.makeText(mContext, mContext.getString(R.string.external_drop_widget_error), 2343 Toast.LENGTH_SHORT).show(); 2344 return false; 2345 } 2346 2347 // Create the drag outline 2348 // We need to add extra padding to the bitmap to make room for the glow effect 2349 final Canvas canvas = new Canvas(); 2350 final int bitmapPadding = HolographicOutlineHelper.MAX_OUTER_BLUR_RADIUS; 2351 mDragOutline = createExternalDragOutline(canvas, bitmapPadding); 2352 2353 // Show the current page outlines to indicate that we can accept this drop 2354 showOutlines(); 2355 layout.setIsDragOccuring(true); 2356 layout.onDragEnter(); 2357 layout.visualizeDropLocation(null, mDragOutline, x, y, 1, 1); 2358 2359 return true; 2360 } 2361 case DragEvent.ACTION_DRAG_LOCATION: 2362 // Visualize the drop location 2363 layout.visualizeDropLocation(null, mDragOutline, x, y, 1, 1); 2364 return true; 2365 case DragEvent.ACTION_DROP: { 2366 // Try and add any shortcuts 2367 final LauncherModel model = mLauncher.getModel(); 2368 final ClipData data = event.getClipData(); 2369 2370 // We assume that the mime types are ordered in descending importance of 2371 // representation. So we enumerate the list of mime types and alert the 2372 // user if any widgets can handle the drop. Only the most preferred 2373 // representation will be handled. 2374 pos[0] = x; 2375 pos[1] = y; 2376 Pair<Integer, List<WidgetMimeTypeHandlerData>> test = validateDrag(event); 2377 if (test != null) { 2378 final int index = test.first; 2379 final List<WidgetMimeTypeHandlerData> widgets = test.second; 2380 final boolean isShortcut = (widgets == null); 2381 final String mimeType = desc.getMimeType(index); 2382 if (isShortcut) { 2383 final Intent intent = data.getItemAt(index).getIntent(); 2384 Object info = model.infoFromShortcutIntent(mContext, intent, data.getIcon()); 2385 onDropExternal(new int[] { x, y }, info, layout, false); 2386 } else { 2387 if (widgets.size() == 1) { 2388 // If there is only one item, then go ahead and add and configure 2389 // that widget 2390 final AppWidgetProviderInfo widgetInfo = widgets.get(0).widgetInfo; 2391 final PendingAddWidgetInfo createInfo = 2392 new PendingAddWidgetInfo(widgetInfo, mimeType, data); 2393 mLauncher.addAppWidgetFromDrop(createInfo, 2394 LauncherSettings.Favorites.CONTAINER_DESKTOP, mCurrentPage, null, pos); 2395 } else { 2396 // Show the widget picker dialog if there is more than one widget 2397 // that can handle this data type 2398 final InstallWidgetReceiver.WidgetListAdapter adapter = 2399 new InstallWidgetReceiver.WidgetListAdapter(mLauncher, mimeType, 2400 data, widgets, layout, mCurrentPage, pos); 2401 final AlertDialog.Builder builder = 2402 new AlertDialog.Builder(mContext); 2403 builder.setAdapter(adapter, adapter); 2404 builder.setCancelable(true); 2405 builder.setTitle(mContext.getString( 2406 R.string.external_drop_widget_pick_title)); 2407 builder.setIcon(R.drawable.ic_no_applications); 2408 builder.show(); 2409 } 2410 } 2411 } 2412 return true; 2413 } 2414 case DragEvent.ACTION_DRAG_ENDED: 2415 // Hide the page outlines after the drop 2416 layout.setIsDragOccuring(false); 2417 layout.onDragExit(); 2418 hideOutlines(); 2419 return true; 2420 } 2421 return super.onDragEvent(event); 2422 } 2423 2424 /* 2425 * 2426 * Convert the 2D coordinate xy from the parent View's coordinate space to this CellLayout's 2427 * coordinate space. The argument xy is modified with the return result. 2428 * 2429 */ 2430 void mapPointFromSelfToChild(View v, float[] xy) { 2431 mapPointFromSelfToChild(v, xy, null); 2432 } 2433 2434 /* 2435 * 2436 * Convert the 2D coordinate xy from the parent View's coordinate space to this CellLayout's 2437 * coordinate space. The argument xy is modified with the return result. 2438 * 2439 * if cachedInverseMatrix is not null, this method will just use that matrix instead of 2440 * computing it itself; we use this to avoid redundant matrix inversions in 2441 * findMatchingPageForDragOver 2442 * 2443 */ 2444 void mapPointFromSelfToChild(View v, float[] xy, Matrix cachedInverseMatrix) { 2445 if (cachedInverseMatrix == null) { 2446 v.getMatrix().invert(mTempInverseMatrix); 2447 cachedInverseMatrix = mTempInverseMatrix; 2448 } 2449 xy[0] = xy[0] + mScrollX - v.getLeft(); 2450 xy[1] = xy[1] + mScrollY - v.getTop(); 2451 cachedInverseMatrix.mapPoints(xy); 2452 } 2453 2454 /* 2455 * Maps a point from the Workspace's coordinate system to another sibling view's. (Workspace 2456 * covers the full screen) 2457 */ 2458 void mapPointFromSelfToSibling(View v, float[] xy) { 2459 xy[0] = xy[0] - v.getLeft(); 2460 xy[1] = xy[1] - v.getTop(); 2461 } 2462 2463 /* 2464 * 2465 * Convert the 2D coordinate xy from this CellLayout's coordinate space to 2466 * the parent View's coordinate space. The argument xy is modified with the return result. 2467 * 2468 */ 2469 void mapPointFromChildToSelf(View v, float[] xy) { 2470 v.getMatrix().mapPoints(xy); 2471 xy[0] -= (mScrollX - v.getLeft()); 2472 xy[1] -= (mScrollY - v.getTop()); 2473 } 2474 2475 static private float squaredDistance(float[] point1, float[] point2) { 2476 float distanceX = point1[0] - point2[0]; 2477 float distanceY = point2[1] - point2[1]; 2478 return distanceX * distanceX + distanceY * distanceY; 2479 } 2480 2481 /* 2482 * 2483 * Returns true if the passed CellLayout cl overlaps with dragView 2484 * 2485 */ 2486 boolean overlaps(CellLayout cl, DragView dragView, 2487 int dragViewX, int dragViewY, Matrix cachedInverseMatrix) { 2488 // Transform the coordinates of the item being dragged to the CellLayout's coordinates 2489 final float[] draggedItemTopLeft = mTempDragCoordinates; 2490 draggedItemTopLeft[0] = dragViewX; 2491 draggedItemTopLeft[1] = dragViewY; 2492 final float[] draggedItemBottomRight = mTempDragBottomRightCoordinates; 2493 draggedItemBottomRight[0] = draggedItemTopLeft[0] + dragView.getDragRegionWidth(); 2494 draggedItemBottomRight[1] = draggedItemTopLeft[1] + dragView.getDragRegionHeight(); 2495 2496 // Transform the dragged item's top left coordinates 2497 // to the CellLayout's local coordinates 2498 mapPointFromSelfToChild(cl, draggedItemTopLeft, cachedInverseMatrix); 2499 float overlapRegionLeft = Math.max(0f, draggedItemTopLeft[0]); 2500 float overlapRegionTop = Math.max(0f, draggedItemTopLeft[1]); 2501 2502 if (overlapRegionLeft <= cl.getWidth() && overlapRegionTop >= 0) { 2503 // Transform the dragged item's bottom right coordinates 2504 // to the CellLayout's local coordinates 2505 mapPointFromSelfToChild(cl, draggedItemBottomRight, cachedInverseMatrix); 2506 float overlapRegionRight = Math.min(cl.getWidth(), draggedItemBottomRight[0]); 2507 float overlapRegionBottom = Math.min(cl.getHeight(), draggedItemBottomRight[1]); 2508 2509 if (overlapRegionRight >= 0 && overlapRegionBottom <= cl.getHeight()) { 2510 float overlap = (overlapRegionRight - overlapRegionLeft) * 2511 (overlapRegionBottom - overlapRegionTop); 2512 if (overlap > 0) { 2513 return true; 2514 } 2515 } 2516 } 2517 return false; 2518 } 2519 2520 /* 2521 * 2522 * This method returns the CellLayout that is currently being dragged to. In order to drag 2523 * to a CellLayout, either the touch point must be directly over the CellLayout, or as a second 2524 * strategy, we see if the dragView is overlapping any CellLayout and choose the closest one 2525 * 2526 * Return null if no CellLayout is currently being dragged over 2527 * 2528 */ 2529 private CellLayout findMatchingPageForDragOver( 2530 DragView dragView, float originX, float originY, boolean exact) { 2531 // We loop through all the screens (ie CellLayouts) and see which ones overlap 2532 // with the item being dragged and then choose the one that's closest to the touch point 2533 final int screenCount = getChildCount(); 2534 CellLayout bestMatchingScreen = null; 2535 float smallestDistSoFar = Float.MAX_VALUE; 2536 2537 for (int i = 0; i < screenCount; i++) { 2538 CellLayout cl = (CellLayout) getChildAt(i); 2539 2540 final float[] touchXy = {originX, originY}; 2541 // Transform the touch coordinates to the CellLayout's local coordinates 2542 // If the touch point is within the bounds of the cell layout, we can return immediately 2543 cl.getMatrix().invert(mTempInverseMatrix); 2544 mapPointFromSelfToChild(cl, touchXy, mTempInverseMatrix); 2545 2546 if (touchXy[0] >= 0 && touchXy[0] <= cl.getWidth() && 2547 touchXy[1] >= 0 && touchXy[1] <= cl.getHeight()) { 2548 return cl; 2549 } 2550 2551 if (!exact && overlaps(cl, dragView, (int) originX, (int) originY, mTempInverseMatrix)) { 2552 // Get the center of the cell layout in screen coordinates 2553 final float[] cellLayoutCenter = mTempCellLayoutCenterCoordinates; 2554 cellLayoutCenter[0] = cl.getWidth()/2; 2555 cellLayoutCenter[1] = cl.getHeight()/2; 2556 mapPointFromChildToSelf(cl, cellLayoutCenter); 2557 2558 touchXy[0] = originX; 2559 touchXy[1] = originY; 2560 2561 // Calculate the distance between the center of the CellLayout 2562 // and the touch point 2563 float dist = squaredDistance(touchXy, cellLayoutCenter); 2564 2565 if (dist < smallestDistSoFar) { 2566 smallestDistSoFar = dist; 2567 bestMatchingScreen = cl; 2568 } 2569 } 2570 } 2571 return bestMatchingScreen; 2572 } 2573 2574 // This is used to compute the visual center of the dragView. This point is then 2575 // used to visualize drop locations and determine where to drop an item. The idea is that 2576 // the visual center represents the user's interpretation of where the item is, and hence 2577 // is the appropriate point to use when determining drop location. 2578 private float[] getDragViewVisualCenter(int x, int y, int xOffset, int yOffset, 2579 DragView dragView, float[] recycle) { 2580 float res[]; 2581 if (recycle == null) { 2582 res = new float[2]; 2583 } else { 2584 res = recycle; 2585 } 2586 2587 // First off, the drag view has been shifted in a way that is not represented in the 2588 // x and y values or the x/yOffsets. Here we account for that shift. 2589 x += getResources().getDimensionPixelSize(R.dimen.dragViewOffsetX); 2590 y += getResources().getDimensionPixelSize(R.dimen.dragViewOffsetY); 2591 2592 // These represent the visual top and left of drag view if a dragRect was provided. 2593 // If a dragRect was not provided, then they correspond to the actual view left and 2594 // top, as the dragRect is in that case taken to be the entire dragView. 2595 // R.dimen.dragViewOffsetY. 2596 int left = x - xOffset; 2597 int top = y - yOffset; 2598 2599 // In order to find the visual center, we shift by half the dragRect 2600 res[0] = left + dragView.getDragRegion().width() / 2; 2601 res[1] = top + dragView.getDragRegion().height() / 2; 2602 2603 return res; 2604 } 2605 2606 private boolean isDragWidget(DragObject d) { 2607 return (d.dragInfo instanceof LauncherAppWidgetInfo || 2608 d.dragInfo instanceof PendingAddWidgetInfo); 2609 } 2610 private boolean isExternalDragWidget(DragObject d) { 2611 return d.dragSource != this && isDragWidget(d); 2612 } 2613 2614 public void onDragOver(DragObject d) { 2615 // Skip drag over events while we are dragging over side pages 2616 if (mInScrollArea) return; 2617 if (mIsSwitchingState) return; 2618 2619 Rect r = new Rect(); 2620 CellLayout layout = null; 2621 ItemInfo item = (ItemInfo) d.dragInfo; 2622 2623 // Ensure that we have proper spans for the item that we are dropping 2624 if (item.spanX < 0 || item.spanY < 0) throw new RuntimeException("Improper spans found"); 2625 mDragViewVisualCenter = getDragViewVisualCenter(d.x, d.y, d.xOffset, d.yOffset, 2626 d.dragView, mDragViewVisualCenter); 2627 2628 // Identify whether we have dragged over a side page 2629 if (isSmall()) { 2630 if (mLauncher.getHotseat() != null && !isExternalDragWidget(d)) { 2631 mLauncher.getHotseat().getHitRect(r); 2632 if (r.contains(d.x, d.y)) { 2633 layout = mLauncher.getHotseat().getLayout(); 2634 } 2635 } 2636 if (layout == null) { 2637 layout = findMatchingPageForDragOver(d.dragView, d.x, d.y, true); 2638 } 2639 if (layout != mDragTargetLayout) { 2640 // Cancel all intermediate folder states 2641 cleanupFolderCreation(d); 2642 2643 if (mDragTargetLayout != null) { 2644 mDragTargetLayout.setIsDragOverlapping(false); 2645 mDragTargetLayout.onDragExit(); 2646 } 2647 mDragTargetLayout = layout; 2648 if (mDragTargetLayout != null) { 2649 mDragTargetLayout.setIsDragOverlapping(true); 2650 mDragTargetLayout.onDragEnter(); 2651 } else { 2652 mLastDragOverView = null; 2653 } 2654 2655 boolean isInSpringLoadedMode = (mState == State.SPRING_LOADED); 2656 if (isInSpringLoadedMode) { 2657 if (mLauncher.isHotseatLayout(layout)) { 2658 mSpringLoadedDragController.cancel(); 2659 } else { 2660 mSpringLoadedDragController.setAlarm(mDragTargetLayout); 2661 } 2662 } 2663 } 2664 } else { 2665 // Test to see if we are over the hotseat otherwise just use the current page 2666 if (mLauncher.getHotseat() != null && !isDragWidget(d)) { 2667 mLauncher.getHotseat().getHitRect(r); 2668 if (r.contains(d.x, d.y)) { 2669 layout = mLauncher.getHotseat().getLayout(); 2670 } 2671 } 2672 if (layout == null) { 2673 layout = getCurrentDropLayout(); 2674 } 2675 if (layout != mDragTargetLayout) { 2676 if (mDragTargetLayout != null) { 2677 mDragTargetLayout.setIsDragOverlapping(false); 2678 mDragTargetLayout.onDragExit(); 2679 } 2680 mDragTargetLayout = layout; 2681 mDragTargetLayout.setIsDragOverlapping(true); 2682 mDragTargetLayout.onDragEnter(); 2683 } 2684 } 2685 2686 // Handle the drag over 2687 if (mDragTargetLayout != null) { 2688 final View child = (mDragInfo == null) ? null : mDragInfo.cell; 2689 2690 // We want the point to be mapped to the dragTarget. 2691 if (mLauncher.isHotseatLayout(mDragTargetLayout)) { 2692 mapPointFromSelfToSibling(mLauncher.getHotseat(), mDragViewVisualCenter); 2693 } else { 2694 mapPointFromSelfToChild(mDragTargetLayout, mDragViewVisualCenter, null); 2695 } 2696 ItemInfo info = (ItemInfo) d.dragInfo; 2697 2698 mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], 2699 (int) mDragViewVisualCenter[1], 1, 1, mDragTargetLayout, mTargetCell); 2700 final View dragOverView = mDragTargetLayout.getChildAt(mTargetCell[0], 2701 mTargetCell[1]); 2702 2703 boolean userFolderPending = willCreateUserFolder(info, mDragTargetLayout, 2704 mTargetCell, false); 2705 boolean isOverFolder = dragOverView instanceof FolderIcon; 2706 if (dragOverView != mLastDragOverView) { 2707 cancelFolderCreation(); 2708 if (mLastDragOverView != null && mLastDragOverView instanceof FolderIcon) { 2709 ((FolderIcon) mLastDragOverView).onDragExit(d.dragInfo); 2710 } 2711 } 2712 2713 if (userFolderPending && dragOverView != mLastDragOverView) { 2714 mFolderCreationAlarm.setOnAlarmListener(new 2715 FolderCreationAlarmListener(mDragTargetLayout, mTargetCell[0], mTargetCell[1])); 2716 mFolderCreationAlarm.setAlarm(FOLDER_CREATION_TIMEOUT); 2717 } 2718 2719 if (dragOverView != mLastDragOverView && isOverFolder) { 2720 ((FolderIcon) dragOverView).onDragEnter(d.dragInfo); 2721 if (mDragTargetLayout != null) { 2722 mDragTargetLayout.clearDragOutlines(); 2723 } 2724 } 2725 mLastDragOverView = dragOverView; 2726 2727 if (!mCreateUserFolderOnDrop && !isOverFolder) { 2728 mDragTargetLayout.visualizeDropLocation(child, mDragOutline, 2729 (int) mDragViewVisualCenter[0], (int) mDragViewVisualCenter[1], 2730 item.spanX, item.spanY); 2731 } 2732 } 2733 } 2734 2735 private void cleanupFolderCreation(DragObject d) { 2736 if (mDragFolderRingAnimator != null && mCreateUserFolderOnDrop) { 2737 mDragFolderRingAnimator.animateToNaturalState(); 2738 } 2739 if (mLastDragOverView != null && mLastDragOverView instanceof FolderIcon) { 2740 if (d != null) { 2741 ((FolderIcon) mLastDragOverView).onDragExit(d.dragInfo); 2742 } 2743 } 2744 mFolderCreationAlarm.cancelAlarm(); 2745 } 2746 2747 private void cancelFolderCreation() { 2748 if (mDragFolderRingAnimator != null && mCreateUserFolderOnDrop) { 2749 mDragFolderRingAnimator.animateToNaturalState(); 2750 } 2751 mCreateUserFolderOnDrop = false; 2752 mFolderCreationAlarm.cancelAlarm(); 2753 } 2754 2755 class FolderCreationAlarmListener implements OnAlarmListener { 2756 CellLayout layout; 2757 int cellX; 2758 int cellY; 2759 2760 public FolderCreationAlarmListener(CellLayout layout, int cellX, int cellY) { 2761 this.layout = layout; 2762 this.cellX = cellX; 2763 this.cellY = cellY; 2764 } 2765 2766 public void onAlarm(Alarm alarm) { 2767 if (mDragFolderRingAnimator == null) { 2768 mDragFolderRingAnimator = new FolderRingAnimator(mLauncher, null); 2769 } 2770 mDragFolderRingAnimator.setCell(cellX, cellY); 2771 mDragFolderRingAnimator.setCellLayout(layout); 2772 mDragFolderRingAnimator.animateToAcceptState(); 2773 layout.showFolderAccept(mDragFolderRingAnimator); 2774 layout.clearDragOutlines(); 2775 mCreateUserFolderOnDrop = true; 2776 } 2777 } 2778 2779 @Override 2780 public void getHitRect(Rect outRect) { 2781 // We want the workspace to have the whole area of the display (it will find the correct 2782 // cell layout to drop to in the existing drag/drop logic. 2783 outRect.set(0, 0, mDisplayWidth, mDisplayHeight); 2784 } 2785 2786 /** 2787 * Add the item specified by dragInfo to the given layout. 2788 * @return true if successful 2789 */ 2790 public boolean addExternalItemToScreen(ItemInfo dragInfo, CellLayout layout) { 2791 if (layout.findCellForSpan(mTempEstimate, dragInfo.spanX, dragInfo.spanY)) { 2792 onDropExternal(dragInfo.dropPos, (ItemInfo) dragInfo, (CellLayout) layout, false); 2793 return true; 2794 } 2795 mLauncher.showOutOfSpaceMessage(); 2796 return false; 2797 } 2798 2799 private void onDropExternal(int[] touchXY, Object dragInfo, 2800 CellLayout cellLayout, boolean insertAtFirst) { 2801 onDropExternal(touchXY, dragInfo, cellLayout, insertAtFirst, null); 2802 } 2803 2804 /** 2805 * Drop an item that didn't originate on one of the workspace screens. 2806 * It may have come from Launcher (e.g. from all apps or customize), or it may have 2807 * come from another app altogether. 2808 * 2809 * NOTE: This can also be called when we are outside of a drag event, when we want 2810 * to add an item to one of the workspace screens. 2811 */ 2812 private void onDropExternal(final int[] touchXY, final Object dragInfo, 2813 final CellLayout cellLayout, boolean insertAtFirst, DragObject d) { 2814 final Runnable exitSpringLoadedRunnable = new Runnable() { 2815 @Override 2816 public void run() { 2817 mLauncher.exitSpringLoadedDragModeDelayed(true, false); 2818 } 2819 }; 2820 2821 ItemInfo info = (ItemInfo) dragInfo; 2822 int spanX = info.spanX; 2823 int spanY = info.spanY; 2824 if (mDragInfo != null) { 2825 spanX = mDragInfo.spanX; 2826 spanY = mDragInfo.spanY; 2827 } 2828 2829 final long container = mLauncher.isHotseatLayout(cellLayout) ? 2830 LauncherSettings.Favorites.CONTAINER_HOTSEAT : 2831 LauncherSettings.Favorites.CONTAINER_DESKTOP; 2832 final int screen = indexOfChild(cellLayout); 2833 if (!mLauncher.isHotseatLayout(cellLayout) && screen != mCurrentPage 2834 && mState != State.SPRING_LOADED) { 2835 snapToPage(screen); 2836 } 2837 2838 if (info instanceof PendingAddItemInfo) { 2839 final PendingAddItemInfo pendingInfo = (PendingAddItemInfo) dragInfo; 2840 2841 boolean findNearestVacantCell = true; 2842 if (pendingInfo.itemType == LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT) { 2843 mTargetCell = findNearestArea((int) touchXY[0], (int) touchXY[1], spanX, spanY, 2844 cellLayout, mTargetCell); 2845 if (willCreateUserFolder((ItemInfo) d.dragInfo, mDragTargetLayout, mTargetCell, 2846 true) || willAddToExistingUserFolder((ItemInfo) d.dragInfo, 2847 mDragTargetLayout, mTargetCell)) { 2848 findNearestVacantCell = false; 2849 } 2850 } 2851 if (findNearestVacantCell) { 2852 mTargetCell = findNearestVacantArea(touchXY[0], touchXY[1], spanX, spanY, null, 2853 cellLayout, mTargetCell); 2854 } 2855 2856 Runnable onAnimationCompleteRunnable = new Runnable() { 2857 @Override 2858 public void run() { 2859 // When dragging and dropping from customization tray, we deal with creating 2860 // widgets/shortcuts/folders in a slightly different way 2861 switch (pendingInfo.itemType) { 2862 case LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET: 2863 mLauncher.addAppWidgetFromDrop((PendingAddWidgetInfo) pendingInfo, 2864 container, screen, mTargetCell, null); 2865 break; 2866 case LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT: 2867 mLauncher.processShortcutFromDrop(pendingInfo.componentName, 2868 container, screen, mTargetCell, null); 2869 break; 2870 default: 2871 throw new IllegalStateException("Unknown item type: " + 2872 pendingInfo.itemType); 2873 } 2874 cellLayout.onDragExit(); 2875 } 2876 }; 2877 2878 // Now we animate the dragView, (ie. the widget or shortcut preview) into its final 2879 // location and size on the home screen. 2880 int loc[] = new int[2]; 2881 cellLayout.cellToPoint(mTargetCell[0], mTargetCell[1], loc); 2882 2883 RectF r = new RectF(); 2884 cellLayout.cellToRect(mTargetCell[0], mTargetCell[1], spanX, spanY, r); 2885 setFinalTransitionTransform(cellLayout); 2886 float cellLayoutScale = 2887 mLauncher.getDragLayer().getDescendantCoordRelativeToSelf(cellLayout, loc); 2888 resetTransitionTransform(cellLayout); 2889 2890 float dragViewScale = r.width() / d.dragView.getMeasuredWidth(); 2891 // The animation will scale the dragView about its center, so we need to center about 2892 // the final location. 2893 loc[0] -= (d.dragView.getMeasuredWidth() - cellLayoutScale * r.width()) / 2; 2894 loc[1] -= (d.dragView.getMeasuredHeight() - cellLayoutScale * r.height()) / 2; 2895 2896 mLauncher.getDragLayer().animateViewIntoPosition(d.dragView, loc, 2897 dragViewScale * cellLayoutScale, onAnimationCompleteRunnable); 2898 } else { 2899 // This is for other drag/drop cases, like dragging from All Apps 2900 View view = null; 2901 2902 switch (info.itemType) { 2903 case LauncherSettings.Favorites.ITEM_TYPE_APPLICATION: 2904 case LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT: 2905 if (info.container == NO_ID && info instanceof ApplicationInfo) { 2906 // Came from all apps -- make a copy 2907 info = new ShortcutInfo((ApplicationInfo) info); 2908 } 2909 view = mLauncher.createShortcut(R.layout.application, cellLayout, 2910 (ShortcutInfo) info); 2911 break; 2912 case LauncherSettings.Favorites.ITEM_TYPE_FOLDER: 2913 view = FolderIcon.fromXml(R.layout.folder_icon, mLauncher, cellLayout, 2914 (FolderInfo) info, mIconCache); 2915 break; 2916 default: 2917 throw new IllegalStateException("Unknown item type: " + info.itemType); 2918 } 2919 2920 // First we find the cell nearest to point at which the item is 2921 // dropped, without any consideration to whether there is an item there. 2922 if (touchXY != null) { 2923 mTargetCell = findNearestArea((int) touchXY[0], (int) touchXY[1], spanX, spanY, 2924 cellLayout, mTargetCell); 2925 d.postAnimationRunnable = exitSpringLoadedRunnable; 2926 if (createUserFolderIfNecessary(view, container, cellLayout, mTargetCell, true, 2927 d.dragView, d.postAnimationRunnable)) { 2928 return; 2929 } 2930 if (addToExistingFolderIfNecessary(view, cellLayout, mTargetCell, d, true)) { 2931 return; 2932 } 2933 } 2934 2935 if (touchXY != null) { 2936 // when dragging and dropping, just find the closest free spot 2937 mTargetCell = findNearestVacantArea(touchXY[0], touchXY[1], 1, 1, null, 2938 cellLayout, mTargetCell); 2939 } else { 2940 cellLayout.findCellForSpan(mTargetCell, 1, 1); 2941 } 2942 addInScreen(view, container, screen, mTargetCell[0], mTargetCell[1], info.spanX, 2943 info.spanY, insertAtFirst); 2944 cellLayout.onDropChild(view); 2945 cellLayout.animateDrop(); 2946 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) view.getLayoutParams(); 2947 cellLayout.getChildrenLayout().measureChild(view); 2948 2949 LauncherModel.addOrMoveItemInDatabase(mLauncher, info, container, screen, 2950 lp.cellX, lp.cellY); 2951 2952 if (d.dragView != null) { 2953 // We wrap the animation call in the temporary set and reset of the current 2954 // cellLayout to its final transform -- this means we animate the drag view to 2955 // the correct final location. 2956 setFinalTransitionTransform(cellLayout); 2957 mLauncher.getDragLayer().animateViewIntoPosition(d.dragView, view, 2958 exitSpringLoadedRunnable); 2959 resetTransitionTransform(cellLayout); 2960 } 2961 } 2962 } 2963 2964 public void setFinalTransitionTransform(CellLayout layout) { 2965 if (isSwitchingState()) { 2966 int index = indexOfChild(layout); 2967 mCurrentScaleX = layout.getScaleX(); 2968 mCurrentScaleY = layout.getScaleY(); 2969 mCurrentTranslationX = layout.getTranslationX(); 2970 mCurrentTranslationY = layout.getTranslationY(); 2971 mCurrentRotationY = layout.getRotationY(); 2972 layout.setScaleX(mNewScaleXs[index]); 2973 layout.setScaleY(mNewScaleYs[index]); 2974 layout.setTranslationX(mNewTranslationXs[index]); 2975 layout.setTranslationY(mNewTranslationYs[index]); 2976 layout.setRotationY(mNewRotationYs[index]); 2977 } 2978 } 2979 public void resetTransitionTransform(CellLayout layout) { 2980 if (isSwitchingState()) { 2981 mCurrentScaleX = layout.getScaleX(); 2982 mCurrentScaleY = layout.getScaleY(); 2983 mCurrentTranslationX = layout.getTranslationX(); 2984 mCurrentTranslationY = layout.getTranslationY(); 2985 mCurrentRotationY = layout.getRotationY(); 2986 layout.setScaleX(mCurrentScaleX); 2987 layout.setScaleY(mCurrentScaleY); 2988 layout.setTranslationX(mCurrentTranslationX); 2989 layout.setTranslationY(mCurrentTranslationY); 2990 layout.setRotationY(mCurrentRotationY); 2991 } 2992 } 2993 2994 /** 2995 * Return the current {@link CellLayout}, correctly picking the destination 2996 * screen while a scroll is in progress. 2997 */ 2998 public CellLayout getCurrentDropLayout() { 2999 return (CellLayout) getChildAt(mNextPage == INVALID_PAGE ? mCurrentPage : mNextPage); 3000 } 3001 3002 /** 3003 * Return the current CellInfo describing our current drag; this method exists 3004 * so that Launcher can sync this object with the correct info when the activity is created/ 3005 * destroyed 3006 * 3007 */ 3008 public CellLayout.CellInfo getDragInfo() { 3009 return mDragInfo; 3010 } 3011 3012 /** 3013 * Calculate the nearest cell where the given object would be dropped. 3014 * 3015 * pixelX and pixelY should be in the coordinate system of layout 3016 */ 3017 private int[] findNearestVacantArea(int pixelX, int pixelY, 3018 int spanX, int spanY, View ignoreView, CellLayout layout, int[] recycle) { 3019 return layout.findNearestVacantArea( 3020 pixelX, pixelY, spanX, spanY, ignoreView, recycle); 3021 } 3022 3023 /** 3024 * Calculate the nearest cell where the given object would be dropped. 3025 * 3026 * pixelX and pixelY should be in the coordinate system of layout 3027 */ 3028 private int[] findNearestArea(int pixelX, int pixelY, 3029 int spanX, int spanY, CellLayout layout, int[] recycle) { 3030 return layout.findNearestArea( 3031 pixelX, pixelY, spanX, spanY, recycle); 3032 } 3033 3034 void setup(DragController dragController) { 3035 mSpringLoadedDragController = new SpringLoadedDragController(mLauncher); 3036 mDragController = dragController; 3037 3038 // hardware layers on children are enabled on startup, but should be disabled until 3039 // needed 3040 updateChildrenLayersEnabled(); 3041 setWallpaperDimension(); 3042 } 3043 3044 /** 3045 * Called at the end of a drag which originated on the workspace. 3046 */ 3047 public void onDropCompleted(View target, DragObject d, boolean success) { 3048 if (success) { 3049 if (target != this) { 3050 if (mDragInfo != null) { 3051 getParentCellLayoutForView(mDragInfo.cell).removeView(mDragInfo.cell); 3052 if (mDragInfo.cell instanceof DropTarget) { 3053 mDragController.removeDropTarget((DropTarget) mDragInfo.cell); 3054 } 3055 } 3056 } 3057 } else if (mDragInfo != null) { 3058 // NOTE: When 'success' is true, onDragExit is called by the DragController before 3059 // calling onDropCompleted(). We call it ourselves here, but maybe this should be 3060 // moved into DragController.cancelDrag(). 3061 doDragExit(null); 3062 CellLayout cellLayout; 3063 if (mLauncher.isHotseatLayout(target)) { 3064 cellLayout = mLauncher.getHotseat().getLayout(); 3065 } else { 3066 cellLayout = (CellLayout) getChildAt(mDragInfo.screen); 3067 } 3068 cellLayout.onDropChild(mDragInfo.cell); 3069 } 3070 if (d.cancelled && mDragInfo.cell != null) { 3071 mDragInfo.cell.setVisibility(VISIBLE); 3072 } 3073 mDragOutline = null; 3074 mDragInfo = null; 3075 } 3076 3077 public boolean isDropEnabled() { 3078 return true; 3079 } 3080 3081 @Override 3082 protected void onRestoreInstanceState(Parcelable state) { 3083 super.onRestoreInstanceState(state); 3084 Launcher.setScreen(mCurrentPage); 3085 } 3086 3087 @Override 3088 public void scrollLeft() { 3089 if (!isSmall() && !mIsSwitchingState) { 3090 super.scrollLeft(); 3091 } 3092 Folder openFolder = getOpenFolder(); 3093 if (openFolder != null) { 3094 openFolder.completeDragExit(); 3095 } 3096 } 3097 3098 @Override 3099 public void scrollRight() { 3100 if (!isSmall() && !mIsSwitchingState) { 3101 super.scrollRight(); 3102 } 3103 Folder openFolder = getOpenFolder(); 3104 if (openFolder != null) { 3105 openFolder.completeDragExit(); 3106 } 3107 } 3108 3109 @Override 3110 public boolean onEnterScrollArea(int x, int y, int direction) { 3111 // Ignore the scroll area if we are dragging over the hot seat 3112 if (mLauncher.getHotseat() != null) { 3113 Rect r = new Rect(); 3114 mLauncher.getHotseat().getHitRect(r); 3115 if (r.contains(x, y)) { 3116 return false; 3117 } 3118 } 3119 3120 boolean result = false; 3121 if (!isSmall() && !mIsSwitchingState) { 3122 mInScrollArea = true; 3123 3124 final int page = mCurrentPage + (direction == DragController.SCROLL_LEFT ? -1 : 1); 3125 final CellLayout layout = (CellLayout) getChildAt(page); 3126 cancelFolderCreation(); 3127 3128 if (layout != null) { 3129 // Exit the current layout and mark the overlapping layout 3130 if (mDragTargetLayout != null) { 3131 mDragTargetLayout.setIsDragOverlapping(false); 3132 mDragTargetLayout.onDragExit(); 3133 } 3134 mDragTargetLayout = layout; 3135 mDragTargetLayout.setIsDragOverlapping(true); 3136 3137 // Workspace is responsible for drawing the edge glow on adjacent pages, 3138 // so we need to redraw the workspace when this may have changed. 3139 invalidate(); 3140 result = true; 3141 } 3142 } 3143 return result; 3144 } 3145 3146 @Override 3147 public boolean onExitScrollArea() { 3148 boolean result = false; 3149 if (mInScrollArea) { 3150 if (mDragTargetLayout != null) { 3151 // Unmark the overlapping layout and re-enter the current layout 3152 mDragTargetLayout.setIsDragOverlapping(false); 3153 mDragTargetLayout = getCurrentDropLayout(); 3154 mDragTargetLayout.onDragEnter(); 3155 3156 // Workspace is responsible for drawing the edge glow on adjacent pages, 3157 // so we need to redraw the workspace when this may have changed. 3158 invalidate(); 3159 result = true; 3160 } 3161 mInScrollArea = false; 3162 } 3163 return result; 3164 } 3165 3166 private void onResetScrollArea() { 3167 if (mDragTargetLayout != null) { 3168 // Unmark the overlapping layout 3169 mDragTargetLayout.setIsDragOverlapping(false); 3170 3171 // Workspace is responsible for drawing the edge glow on adjacent pages, 3172 // so we need to redraw the workspace when this may have changed. 3173 invalidate(); 3174 } 3175 mInScrollArea = false; 3176 } 3177 3178 /** 3179 * Returns a specific CellLayout 3180 */ 3181 CellLayout getParentCellLayoutForView(View v) { 3182 ArrayList<CellLayout> layouts = getWorkspaceAndHotseatCellLayouts(); 3183 for (CellLayout layout : layouts) { 3184 if (layout.getChildrenLayout().indexOfChild(v) > -1) { 3185 return layout; 3186 } 3187 } 3188 return null; 3189 } 3190 3191 /** 3192 * Returns a list of all the CellLayouts in the workspace. 3193 */ 3194 ArrayList<CellLayout> getWorkspaceAndHotseatCellLayouts() { 3195 ArrayList<CellLayout> layouts = new ArrayList<CellLayout>(); 3196 int screenCount = getChildCount(); 3197 for (int screen = 0; screen < screenCount; screen++) { 3198 layouts.add(((CellLayout) getChildAt(screen))); 3199 } 3200 if (mLauncher.getHotseat() != null) { 3201 layouts.add(mLauncher.getHotseat().getLayout()); 3202 } 3203 return layouts; 3204 } 3205 3206 /** 3207 * We should only use this to search for specific children. Do not use this method to modify 3208 * CellLayoutChildren directly. 3209 */ 3210 ArrayList<CellLayoutChildren> getWorkspaceAndHotseatCellLayoutChildren() { 3211 ArrayList<CellLayoutChildren> childrenLayouts = new ArrayList<CellLayoutChildren>(); 3212 int screenCount = getChildCount(); 3213 for (int screen = 0; screen < screenCount; screen++) { 3214 childrenLayouts.add(((CellLayout) getChildAt(screen)).getChildrenLayout()); 3215 } 3216 if (mLauncher.getHotseat() != null) { 3217 childrenLayouts.add(mLauncher.getHotseat().getLayout().getChildrenLayout()); 3218 } 3219 return childrenLayouts; 3220 } 3221 3222 public Folder getFolderForTag(Object tag) { 3223 ArrayList<CellLayoutChildren> childrenLayouts = getWorkspaceAndHotseatCellLayoutChildren(); 3224 for (CellLayoutChildren layout: childrenLayouts) { 3225 int count = layout.getChildCount(); 3226 for (int i = 0; i < count; i++) { 3227 View child = layout.getChildAt(i); 3228 if (child instanceof Folder) { 3229 Folder f = (Folder) child; 3230 if (f.getInfo() == tag && f.getInfo().opened) { 3231 return f; 3232 } 3233 } 3234 } 3235 } 3236 return null; 3237 } 3238 3239 public View getViewForTag(Object tag) { 3240 ArrayList<CellLayoutChildren> childrenLayouts = getWorkspaceAndHotseatCellLayoutChildren(); 3241 for (CellLayoutChildren layout: childrenLayouts) { 3242 int count = layout.getChildCount(); 3243 for (int i = 0; i < count; i++) { 3244 View child = layout.getChildAt(i); 3245 if (child.getTag() == tag) { 3246 return child; 3247 } 3248 } 3249 } 3250 return null; 3251 } 3252 3253 void clearDropTargets() { 3254 ArrayList<CellLayoutChildren> childrenLayouts = getWorkspaceAndHotseatCellLayoutChildren(); 3255 for (CellLayoutChildren layout: childrenLayouts) { 3256 int childCount = layout.getChildCount(); 3257 for (int j = 0; j < childCount; j++) { 3258 View v = layout.getChildAt(j); 3259 if (v instanceof DropTarget) { 3260 mDragController.removeDropTarget((DropTarget) v); 3261 } 3262 } 3263 } 3264 } 3265 3266 void removeItems(final ArrayList<ApplicationInfo> apps) { 3267 final AppWidgetManager widgets = AppWidgetManager.getInstance(getContext()); 3268 3269 final HashSet<String> packageNames = new HashSet<String>(); 3270 final int appCount = apps.size(); 3271 for (int i = 0; i < appCount; i++) { 3272 packageNames.add(apps.get(i).componentName.getPackageName()); 3273 } 3274 3275 ArrayList<CellLayout> cellLayouts = getWorkspaceAndHotseatCellLayouts(); 3276 for (final CellLayout layoutParent: cellLayouts) { 3277 final ViewGroup layout = layoutParent.getChildrenLayout(); 3278 3279 // Avoid ANRs by treating each screen separately 3280 post(new Runnable() { 3281 public void run() { 3282 final ArrayList<View> childrenToRemove = new ArrayList<View>(); 3283 childrenToRemove.clear(); 3284 3285 int childCount = layout.getChildCount(); 3286 for (int j = 0; j < childCount; j++) { 3287 final View view = layout.getChildAt(j); 3288 Object tag = view.getTag(); 3289 3290 if (tag instanceof ShortcutInfo) { 3291 final ShortcutInfo info = (ShortcutInfo) tag; 3292 final Intent intent = info.intent; 3293 final ComponentName name = intent.getComponent(); 3294 3295 if (Intent.ACTION_MAIN.equals(intent.getAction()) && name != null) { 3296 for (String packageName: packageNames) { 3297 if (packageName.equals(name.getPackageName())) { 3298 LauncherModel.deleteItemFromDatabase(mLauncher, info); 3299 childrenToRemove.add(view); 3300 } 3301 } 3302 } 3303 } else if (tag instanceof FolderInfo) { 3304 final FolderInfo info = (FolderInfo) tag; 3305 final ArrayList<ShortcutInfo> contents = info.contents; 3306 final int contentsCount = contents.size(); 3307 final ArrayList<ShortcutInfo> appsToRemoveFromFolder = 3308 new ArrayList<ShortcutInfo>(); 3309 3310 for (int k = 0; k < contentsCount; k++) { 3311 final ShortcutInfo appInfo = contents.get(k); 3312 final Intent intent = appInfo.intent; 3313 final ComponentName name = intent.getComponent(); 3314 3315 if (Intent.ACTION_MAIN.equals(intent.getAction()) && name != null) { 3316 for (String packageName: packageNames) { 3317 if (packageName.equals(name.getPackageName())) { 3318 appsToRemoveFromFolder.add(appInfo); 3319 } 3320 } 3321 } 3322 } 3323 for (ShortcutInfo item: appsToRemoveFromFolder) { 3324 info.remove(item); 3325 LauncherModel.deleteItemFromDatabase(mLauncher, item); 3326 } 3327 } else if (tag instanceof LauncherAppWidgetInfo) { 3328 final LauncherAppWidgetInfo info = (LauncherAppWidgetInfo) tag; 3329 final AppWidgetProviderInfo provider = 3330 widgets.getAppWidgetInfo(info.appWidgetId); 3331 if (provider != null) { 3332 for (String packageName: packageNames) { 3333 if (packageName.equals(provider.provider.getPackageName())) { 3334 LauncherModel.deleteItemFromDatabase(mLauncher, info); 3335 childrenToRemove.add(view); 3336 } 3337 } 3338 } 3339 } 3340 } 3341 3342 childCount = childrenToRemove.size(); 3343 for (int j = 0; j < childCount; j++) { 3344 View child = childrenToRemove.get(j); 3345 // Note: We can not remove the view directly from CellLayoutChildren as this 3346 // does not re-mark the spaces as unoccupied. 3347 layoutParent.removeViewInLayout(child); 3348 if (child instanceof DropTarget) { 3349 mDragController.removeDropTarget((DropTarget)child); 3350 } 3351 } 3352 3353 if (childCount > 0) { 3354 layout.requestLayout(); 3355 layout.invalidate(); 3356 } 3357 } 3358 }); 3359 } 3360 } 3361 3362 void updateShortcuts(ArrayList<ApplicationInfo> apps) { 3363 ArrayList<CellLayoutChildren> childrenLayouts = getWorkspaceAndHotseatCellLayoutChildren(); 3364 for (CellLayoutChildren layout: childrenLayouts) { 3365 int childCount = layout.getChildCount(); 3366 for (int j = 0; j < childCount; j++) { 3367 final View view = layout.getChildAt(j); 3368 Object tag = view.getTag(); 3369 if (tag instanceof ShortcutInfo) { 3370 ShortcutInfo info = (ShortcutInfo)tag; 3371 // We need to check for ACTION_MAIN otherwise getComponent() might 3372 // return null for some shortcuts (for instance, for shortcuts to 3373 // web pages.) 3374 final Intent intent = info.intent; 3375 final ComponentName name = intent.getComponent(); 3376 if (info.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPLICATION && 3377 Intent.ACTION_MAIN.equals(intent.getAction()) && name != null) { 3378 final int appCount = apps.size(); 3379 for (int k = 0; k < appCount; k++) { 3380 ApplicationInfo app = apps.get(k); 3381 if (app.componentName.equals(name)) { 3382 info.setIcon(mIconCache.getIcon(info.intent)); 3383 ((TextView)view).setCompoundDrawablesWithIntrinsicBounds(null, 3384 new FastBitmapDrawable(info.getIcon(mIconCache)), 3385 null, null); 3386 } 3387 } 3388 } 3389 } 3390 } 3391 } 3392 } 3393 3394 void moveToDefaultScreen(boolean animate) { 3395 if (!isSmall()) { 3396 if (animate) { 3397 snapToPage(mDefaultPage); 3398 } else { 3399 setCurrentPage(mDefaultPage); 3400 } 3401 } 3402 getChildAt(mDefaultPage).requestFocus(); 3403 } 3404 3405 @Override 3406 public void syncPages() { 3407 } 3408 3409 @Override 3410 public void syncPageItems(int page, boolean immediate) { 3411 } 3412 3413 @Override 3414 protected String getCurrentPageDescription() { 3415 int page = (mNextPage != INVALID_PAGE) ? mNextPage : mCurrentPage; 3416 return String.format(mContext.getString(R.string.workspace_scroll_format), 3417 page + 1, getChildCount()); 3418 } 3419 3420 public void getLocationInDragLayer(int[] loc) { 3421 mLauncher.getDragLayer().getLocationInDragLayer(this, loc); 3422 } 3423 3424 void showDockDivider(boolean immediately) { 3425 final ViewGroup parent = (ViewGroup) getParent(); 3426 final View qsbDivider = (ImageView) (parent.findViewById(R.id.qsb_divider)); 3427 final View dockDivider = (ImageView) (parent.findViewById(R.id.dock_divider)); 3428 if (qsbDivider != null && dockDivider != null) { 3429 qsbDivider.setVisibility(View.VISIBLE); 3430 dockDivider.setVisibility(View.VISIBLE); 3431 if (mDividerAnimator != null) { 3432 mDividerAnimator.cancel(); 3433 mDividerAnimator = null; 3434 } 3435 if (immediately) { 3436 qsbDivider.setAlpha(1f); 3437 dockDivider.setAlpha(1f); 3438 } else { 3439 mDividerAnimator = new AnimatorSet(); 3440 mDividerAnimator.playTogether(ObjectAnimator.ofFloat(qsbDivider, "alpha", 1f), 3441 ObjectAnimator.ofFloat(dockDivider, "alpha", 1f)); 3442 mDividerAnimator.setDuration(sScrollIndicatorFadeInDuration); 3443 mDividerAnimator.start(); 3444 } 3445 } 3446 } 3447 3448 void hideDockDivider(boolean immediately) { 3449 final ViewGroup parent = (ViewGroup) getParent(); 3450 final View qsbDivider = (ImageView) (parent.findViewById(R.id.qsb_divider)); 3451 final View dockDivider = (ImageView) (parent.findViewById(R.id.dock_divider)); 3452 if (qsbDivider != null && dockDivider != null) { 3453 if (mDividerAnimator != null) { 3454 mDividerAnimator.cancel(); 3455 mDividerAnimator = null; 3456 } 3457 if (immediately) { 3458 qsbDivider.setVisibility(View.GONE); 3459 dockDivider.setVisibility(View.GONE); 3460 qsbDivider.setAlpha(0f); 3461 dockDivider.setAlpha(0f); 3462 } else { 3463 mDividerAnimator = new AnimatorSet(); 3464 mDividerAnimator.playTogether(ObjectAnimator.ofFloat(qsbDivider, "alpha", 0f), 3465 ObjectAnimator.ofFloat(dockDivider, "alpha", 0f)); 3466 mDividerAnimator.addListener(new AnimatorListenerAdapter() { 3467 private boolean cancelled = false; 3468 @Override 3469 public void onAnimationCancel(android.animation.Animator animation) { 3470 cancelled = true; 3471 } 3472 @Override 3473 public void onAnimationEnd(android.animation.Animator animation) { 3474 if (!cancelled) { 3475 qsbDivider.setVisibility(View.GONE); 3476 dockDivider.setVisibility(View.GONE); 3477 } 3478 } 3479 }); 3480 mDividerAnimator.setDuration(sScrollIndicatorFadeOutDuration); 3481 mDividerAnimator.start(); 3482 } 3483 } 3484 } 3485} 3486