Workspace.java revision 193080b4c6bfde502aa122b15315745650661af7
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.Animator.AnimatorListener; 21import android.animation.AnimatorListenerAdapter; 22import android.animation.AnimatorSet; 23import android.animation.ObjectAnimator; 24import android.animation.TimeInterpolator; 25import android.animation.ValueAnimator; 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.Point; 44import android.graphics.PorterDuff; 45import android.graphics.Rect; 46import android.graphics.RectF; 47import android.graphics.Region.Op; 48import android.graphics.drawable.Drawable; 49import android.os.IBinder; 50import android.os.Parcelable; 51import android.util.AttributeSet; 52import android.util.DisplayMetrics; 53import android.util.Log; 54import android.util.Pair; 55import android.view.Display; 56import android.view.DragEvent; 57import android.view.MotionEvent; 58import android.view.View; 59import android.view.ViewGroup; 60import android.view.animation.DecelerateInterpolator; 61import android.widget.ImageView; 62import android.widget.TextView; 63import android.widget.Toast; 64 65import com.android.launcher.R; 66import com.android.launcher2.FolderIcon.FolderRingAnimator; 67import com.android.launcher2.InstallWidgetReceiver.WidgetMimeTypeHandlerData; 68 69import java.util.ArrayList; 70import java.util.HashSet; 71import java.util.List; 72 73/** 74 * The workspace is a wide area with a wallpaper and a finite number of pages. 75 * Each page contains a number of icons, folders or widgets the user can 76 * interact with. A workspace is meant to be used with a fixed width only. 77 */ 78public class Workspace extends SmoothPagedView 79 implements DropTarget, DragSource, DragScroller, View.OnTouchListener, 80 DragController.DragListener { 81 @SuppressWarnings({"UnusedDeclaration"}) 82 private static final String TAG = "Launcher.Workspace"; 83 84 // Y rotation to apply to the workspace screens 85 private static final float WORKSPACE_ROTATION = 12.5f; 86 private static final float WORKSPACE_OVERSCROLL_ROTATION = 24f; 87 private static float CAMERA_DISTANCE = 6500; 88 89 private static final int CHILDREN_OUTLINE_FADE_OUT_DELAY = 0; 90 private static final int CHILDREN_OUTLINE_FADE_OUT_DURATION = 375; 91 private static final int CHILDREN_OUTLINE_FADE_IN_DURATION = 100; 92 93 private static final int BACKGROUND_FADE_OUT_DURATION = 350; 94 private static final int ADJACENT_SCREEN_DROP_DURATION = 300; 95 96 // These animators are used to fade the children's outlines 97 private ObjectAnimator mChildrenOutlineFadeInAnimation; 98 private ObjectAnimator mChildrenOutlineFadeOutAnimation; 99 private float mChildrenOutlineAlpha = 0; 100 101 // These properties refer to the background protection gradient used for AllApps and Customize 102 private ValueAnimator mBackgroundFadeInAnimation; 103 private ValueAnimator mBackgroundFadeOutAnimation; 104 private Drawable mBackground; 105 boolean mDrawBackground = true; 106 private float mBackgroundAlpha = 0; 107 private float mOverScrollMaxBackgroundAlpha = 0.0f; 108 private int mOverScrollPageIndex = -1; 109 private AnimatorSet mDividerAnimator; 110 111 private float mWallpaperScrollRatio = 1.0f; 112 113 private final WallpaperManager mWallpaperManager; 114 private IBinder mWindowToken; 115 private static final float WALLPAPER_SCREENS_SPAN = 2f; 116 117 private int mDefaultPage; 118 119 /** 120 * CellInfo for the cell that is currently being dragged 121 */ 122 private CellLayout.CellInfo mDragInfo; 123 124 /** 125 * Target drop area calculated during last acceptDrop call. 126 */ 127 private int[] mTargetCell = new int[2]; 128 129 /** 130 * The CellLayout that is currently being dragged over 131 */ 132 private CellLayout mDragTargetLayout = null; 133 134 private Launcher mLauncher; 135 private IconCache mIconCache; 136 private DragController mDragController; 137 138 // These are temporary variables to prevent having to allocate a new object just to 139 // return an (x, y) value from helper functions. Do NOT use them to maintain other state. 140 private int[] mTempCell = new int[2]; 141 private int[] mTempEstimate = new int[2]; 142 private float[] mDragViewVisualCenter = new float[2]; 143 private float[] mTempDragCoordinates = new float[2]; 144 private float[] mTempCellLayoutCenterCoordinates = new float[2]; 145 private float[] mTempDragBottomRightCoordinates = new float[2]; 146 private Matrix mTempInverseMatrix = new Matrix(); 147 148 private SpringLoadedDragController mSpringLoadedDragController; 149 private float mSpringLoadedShrinkFactor; 150 151 private static final int DEFAULT_CELL_COUNT_X = 4; 152 private static final int DEFAULT_CELL_COUNT_Y = 4; 153 154 // State variable that indicates whether the pages are small (ie when you're 155 // in all apps or customize mode) 156 157 enum State { NORMAL, SPRING_LOADED, SMALL }; 158 private State mState = State.NORMAL; 159 private boolean mIsSwitchingState = false; 160 private boolean mSwitchStateAfterFirstLayout = false; 161 private State mStateAfterFirstLayout; 162 163 private AnimatorSet mAnimator; 164 private AnimatorListener mChangeStateAnimationListener; 165 166 boolean mAnimatingViewIntoPlace = false; 167 boolean mIsDragOccuring = false; 168 boolean mChildrenLayersEnabled = true; 169 170 /** Is the user is dragging an item near the edge of a page? */ 171 private boolean mInScrollArea = false; 172 173 private final HolographicOutlineHelper mOutlineHelper = new HolographicOutlineHelper(); 174 private Bitmap mDragOutline = null; 175 private final Rect mTempRect = new Rect(); 176 private final int[] mTempXY = new int[2]; 177 private int mDragViewMultiplyColor; 178 179 // Paint used to draw external drop outline 180 private final Paint mExternalDragOutlinePaint = new Paint(); 181 182 // Camera and Matrix used to determine the final position of a neighboring CellLayout 183 private final Matrix mMatrix = new Matrix(); 184 private final Camera mCamera = new Camera(); 185 private final float mTempFloat2[] = new float[2]; 186 187 enum WallpaperVerticalOffset { TOP, MIDDLE, BOTTOM }; 188 int mWallpaperWidth; 189 int mWallpaperHeight; 190 WallpaperOffsetInterpolator mWallpaperOffset; 191 boolean mUpdateWallpaperOffsetImmediately = false; 192 private Runnable mDelayedResizeRunnable; 193 private int mDisplayWidth; 194 private int mDisplayHeight; 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(); 641 642 if (isHardwareAccelerated()) { 643 updateChildrenLayersEnabled(); 644 } else { 645 if (mNextPage != INVALID_PAGE) { 646 // we're snapping to a particular screen 647 enableChildrenCache(mCurrentPage, mNextPage); 648 } else { 649 // this is when user is actively dragging a particular screen, they might 650 // swipe it either left or right (but we won't advance by more than one screen) 651 enableChildrenCache(mCurrentPage - 1, mCurrentPage + 1); 652 } 653 } 654 655 // Only show page outlines as we pan if we are on large screen 656 if (LauncherApplication.isScreenLarge()) { 657 showOutlines(); 658 } 659 } 660 661 protected void onPageEndMoving() { 662 super.onPageEndMoving(); 663 664 if (isHardwareAccelerated()) { 665 updateChildrenLayersEnabled(); 666 } else { 667 clearChildrenCache(); 668 } 669 670 // Hide the outlines, as long as we're not dragging 671 if (!mDragController.dragging()) { 672 // Only hide page outlines as we pan if we are on large screen 673 if (LauncherApplication.isScreenLarge()) { 674 hideOutlines(); 675 } 676 } 677 mOverScrollMaxBackgroundAlpha = 0.0f; 678 mOverScrollPageIndex = -1; 679 680 if (mDelayedResizeRunnable != null) { 681 mDelayedResizeRunnable.run(); 682 mDelayedResizeRunnable = null; 683 } 684 } 685 686 @Override 687 protected void notifyPageSwitchListener() { 688 super.notifyPageSwitchListener(); 689 Launcher.setScreen(mCurrentPage); 690 }; 691 692 // As a ratio of screen height, the total distance we want the parallax effect to span 693 // horizontally 694 private float wallpaperTravelToScreenWidthRatio(int width, int height) { 695 float aspectRatio = width / (float) height; 696 697 // At an aspect ratio of 16/10, the wallpaper parallax effect should span 1.5 * screen width 698 // At an aspect ratio of 10/16, the wallpaper parallax effect should span 1.2 * screen width 699 // We will use these two data points to extrapolate how much the wallpaper parallax effect 700 // to span (ie travel) at any aspect ratio: 701 702 final float ASPECT_RATIO_LANDSCAPE = 16/10f; 703 final float ASPECT_RATIO_PORTRAIT = 10/16f; 704 final float WALLPAPER_WIDTH_TO_SCREEN_RATIO_LANDSCAPE = 1.5f; 705 final float WALLPAPER_WIDTH_TO_SCREEN_RATIO_PORTRAIT = 1.2f; 706 707 // To find out the desired width at different aspect ratios, we use the following two 708 // formulas, where the coefficient on x is the aspect ratio (width/height): 709 // (16/10)x + y = 1.5 710 // (10/16)x + y = 1.2 711 // We solve for x and y and end up with a final formula: 712 final float x = 713 (WALLPAPER_WIDTH_TO_SCREEN_RATIO_LANDSCAPE - WALLPAPER_WIDTH_TO_SCREEN_RATIO_PORTRAIT) / 714 (ASPECT_RATIO_LANDSCAPE - ASPECT_RATIO_PORTRAIT); 715 final float y = WALLPAPER_WIDTH_TO_SCREEN_RATIO_PORTRAIT - x * ASPECT_RATIO_PORTRAIT; 716 return x * aspectRatio + y; 717 } 718 719 // The range of scroll values for Workspace 720 private int getScrollRange() { 721 return getChildOffset(getChildCount() - 1) - getChildOffset(0); 722 } 723 724 protected void setWallpaperDimension() { 725 DisplayMetrics displayMetrics = new DisplayMetrics(); 726 mLauncher.getWindowManager().getDefaultDisplay().getRealMetrics(displayMetrics); 727 final int maxDim = Math.max(displayMetrics.widthPixels, displayMetrics.heightPixels); 728 final int minDim = Math.min(displayMetrics.widthPixels, displayMetrics.heightPixels); 729 730 // We need to ensure that there is enough extra space in the wallpaper for the intended 731 // parallax effects 732 if (LauncherApplication.isScreenLarge()) { 733 mWallpaperWidth = (int) (maxDim * wallpaperTravelToScreenWidthRatio(maxDim, minDim)); 734 mWallpaperHeight = maxDim; 735 } else { 736 mWallpaperWidth = Math.max((int) (minDim * WALLPAPER_SCREENS_SPAN), maxDim); 737 mWallpaperHeight = maxDim; 738 } 739 new Thread("setWallpaperDimension") { 740 public void run() { 741 mWallpaperManager.suggestDesiredDimensions(mWallpaperWidth, mWallpaperHeight); 742 } 743 }.start(); 744 } 745 746 public void setVerticalWallpaperOffset(float offset) { 747 mWallpaperOffset.setFinalY(offset); 748 } 749 public float getVerticalWallpaperOffset() { 750 return mWallpaperOffset.getCurrY(); 751 } 752 public void setHorizontalWallpaperOffset(float offset) { 753 mWallpaperOffset.setFinalX(offset); 754 } 755 public float getHorizontalWallpaperOffset() { 756 return mWallpaperOffset.getCurrX(); 757 } 758 759 private float wallpaperOffsetForCurrentScroll() { 760 // The wallpaper travel width is how far, from left to right, the wallpaper will move 761 // at this orientation. On tablets in portrait mode we don't move all the way to the 762 // edges of the wallpaper, or otherwise the parallax effect would be too strong. 763 int wallpaperTravelWidth = mWallpaperWidth; 764 if (LauncherApplication.isScreenLarge()) { 765 wallpaperTravelWidth = mWallpaperTravelWidth; 766 } 767 768 // Set wallpaper offset steps (1 / (number of screens - 1)) 769 mWallpaperManager.setWallpaperOffsetSteps(1.0f / (getChildCount() - 1), 1.0f); 770 771 // For the purposes of computing the scrollRange and overScrollOffset, we assume 772 // that mLayoutScale is 1. This means that when we're in spring-loaded mode, 773 // there's no discrepancy between the wallpaper offset for a given page. 774 float layoutScale = mLayoutScale; 775 mLayoutScale = 1f; 776 int scrollRange = getScrollRange(); 777 778 // Again, we adjust the wallpaper offset to be consistent between values of mLayoutScale 779 float adjustedScrollX = Math.max(0, Math.min(mScrollX, mMaxScrollX)); 780 adjustedScrollX *= mWallpaperScrollRatio; 781 mLayoutScale = layoutScale; 782 783 float scrollProgress = 784 adjustedScrollX / (float) scrollRange; 785 float offsetInDips = wallpaperTravelWidth * scrollProgress + 786 (mWallpaperWidth - wallpaperTravelWidth) / 2; // center it 787 float offset = offsetInDips / (float) mWallpaperWidth; 788 return offset; 789 } 790 private void syncWallpaperOffsetWithScroll() { 791 final boolean enableWallpaperEffects = isHardwareAccelerated(); 792 if (enableWallpaperEffects) { 793 mWallpaperOffset.setFinalX(wallpaperOffsetForCurrentScroll()); 794 } 795 } 796 797 public void updateWallpaperOffsetImmediately() { 798 mUpdateWallpaperOffsetImmediately = true; 799 } 800 801 private void updateWallpaperOffsets() { 802 boolean updateNow = false; 803 boolean keepUpdating = true; 804 if (mUpdateWallpaperOffsetImmediately) { 805 updateNow = true; 806 keepUpdating = false; 807 mWallpaperOffset.jumpToFinal(); 808 mUpdateWallpaperOffsetImmediately = false; 809 } else { 810 updateNow = keepUpdating = mWallpaperOffset.computeScrollOffset(); 811 } 812 if (updateNow) { 813 if (mWindowToken != null) { 814 mWallpaperManager.setWallpaperOffsets(mWindowToken, 815 mWallpaperOffset.getCurrX(), mWallpaperOffset.getCurrY()); 816 } 817 } 818 if (keepUpdating) { 819 fastInvalidate(); 820 } 821 } 822 823 @Override 824 protected void updateCurrentPageScroll() { 825 super.updateCurrentPageScroll(); 826 computeWallpaperScrollRatio(mCurrentPage); 827 } 828 829 @Override 830 protected void snapToPage(int whichPage) { 831 super.snapToPage(whichPage); 832 computeWallpaperScrollRatio(whichPage); 833 } 834 835 private void computeWallpaperScrollRatio(int page) { 836 // Here, we determine what the desired scroll would be with and without a layout scale, 837 // and compute a ratio between the two. This allows us to adjust the wallpaper offset 838 // as though there is no layout scale. 839 float layoutScale = mLayoutScale; 840 int scaled = getChildOffset(page) - getRelativeChildOffset(page); 841 mLayoutScale = 1.0f; 842 float unscaled = getChildOffset(page) - getRelativeChildOffset(page); 843 mLayoutScale = layoutScale; 844 if (scaled > 0) { 845 mWallpaperScrollRatio = (1.0f * unscaled) / scaled; 846 } else { 847 mWallpaperScrollRatio = 1f; 848 } 849 } 850 851 class WallpaperOffsetInterpolator { 852 float mFinalHorizontalWallpaperOffset = 0.0f; 853 float mFinalVerticalWallpaperOffset = 0.5f; 854 float mHorizontalWallpaperOffset = 0.0f; 855 float mVerticalWallpaperOffset = 0.5f; 856 long mLastWallpaperOffsetUpdateTime; 857 boolean mIsMovingFast; 858 boolean mOverrideHorizontalCatchupConstant; 859 float mHorizontalCatchupConstant = 0.35f; 860 float mVerticalCatchupConstant = 0.35f; 861 862 public WallpaperOffsetInterpolator() { 863 } 864 865 public void setOverrideHorizontalCatchupConstant(boolean override) { 866 mOverrideHorizontalCatchupConstant = override; 867 } 868 869 public void setHorizontalCatchupConstant(float f) { 870 mHorizontalCatchupConstant = f; 871 } 872 873 public void setVerticalCatchupConstant(float f) { 874 mVerticalCatchupConstant = f; 875 } 876 877 public boolean computeScrollOffset() { 878 if (Float.compare(mHorizontalWallpaperOffset, mFinalHorizontalWallpaperOffset) == 0 && 879 Float.compare(mVerticalWallpaperOffset, mFinalVerticalWallpaperOffset) == 0) { 880 mIsMovingFast = false; 881 return false; 882 } 883 boolean isLandscape = mDisplayWidth > mDisplayHeight; 884 885 long currentTime = System.currentTimeMillis(); 886 long timeSinceLastUpdate = currentTime - mLastWallpaperOffsetUpdateTime; 887 timeSinceLastUpdate = Math.min((long) (1000/30f), timeSinceLastUpdate); 888 timeSinceLastUpdate = Math.max(1L, timeSinceLastUpdate); 889 890 float xdiff = Math.abs(mFinalHorizontalWallpaperOffset - mHorizontalWallpaperOffset); 891 if (!mIsMovingFast && xdiff > 0.07) { 892 mIsMovingFast = true; 893 } 894 895 float fractionToCatchUpIn1MsHorizontal; 896 if (mOverrideHorizontalCatchupConstant) { 897 fractionToCatchUpIn1MsHorizontal = mHorizontalCatchupConstant; 898 } else if (mIsMovingFast) { 899 fractionToCatchUpIn1MsHorizontal = isLandscape ? 0.5f : 0.75f; 900 } else { 901 // slow 902 fractionToCatchUpIn1MsHorizontal = isLandscape ? 0.27f : 0.5f; 903 } 904 float fractionToCatchUpIn1MsVertical = mVerticalCatchupConstant; 905 906 fractionToCatchUpIn1MsHorizontal /= 33f; 907 fractionToCatchUpIn1MsVertical /= 33f; 908 909 final float UPDATE_THRESHOLD = 0.00001f; 910 float hOffsetDelta = mFinalHorizontalWallpaperOffset - mHorizontalWallpaperOffset; 911 float vOffsetDelta = mFinalVerticalWallpaperOffset - mVerticalWallpaperOffset; 912 boolean jumpToFinalValue = Math.abs(hOffsetDelta) < UPDATE_THRESHOLD && 913 Math.abs(vOffsetDelta) < UPDATE_THRESHOLD; 914 915 // Don't have any lag between workspace and wallpaper on non-large devices 916 if (!LauncherApplication.isScreenLarge() || jumpToFinalValue) { 917 mHorizontalWallpaperOffset = mFinalHorizontalWallpaperOffset; 918 mVerticalWallpaperOffset = mFinalVerticalWallpaperOffset; 919 } else { 920 float percentToCatchUpVertical = 921 Math.min(1.0f, timeSinceLastUpdate * fractionToCatchUpIn1MsVertical); 922 float percentToCatchUpHorizontal = 923 Math.min(1.0f, timeSinceLastUpdate * fractionToCatchUpIn1MsHorizontal); 924 mHorizontalWallpaperOffset += percentToCatchUpHorizontal * hOffsetDelta; 925 mVerticalWallpaperOffset += percentToCatchUpVertical * vOffsetDelta; 926 } 927 928 mLastWallpaperOffsetUpdateTime = System.currentTimeMillis(); 929 return true; 930 } 931 932 public float getCurrX() { 933 return mHorizontalWallpaperOffset; 934 } 935 936 public float getFinalX() { 937 return mFinalHorizontalWallpaperOffset; 938 } 939 940 public float getCurrY() { 941 return mVerticalWallpaperOffset; 942 } 943 944 public float getFinalY() { 945 return mFinalVerticalWallpaperOffset; 946 } 947 948 public void setFinalX(float x) { 949 mFinalHorizontalWallpaperOffset = Math.max(0f, Math.min(x, 1.0f)); 950 } 951 952 public void setFinalY(float y) { 953 mFinalVerticalWallpaperOffset = Math.max(0f, Math.min(y, 1.0f)); 954 } 955 956 public void jumpToFinal() { 957 mHorizontalWallpaperOffset = mFinalHorizontalWallpaperOffset; 958 mVerticalWallpaperOffset = mFinalVerticalWallpaperOffset; 959 } 960 } 961 962 @Override 963 public void computeScroll() { 964 super.computeScroll(); 965 syncWallpaperOffsetWithScroll(); 966 } 967 968 void showOutlines() { 969 if (!isSmall() && !mIsSwitchingState) { 970 if (mChildrenOutlineFadeOutAnimation != null) mChildrenOutlineFadeOutAnimation.cancel(); 971 if (mChildrenOutlineFadeInAnimation != null) mChildrenOutlineFadeInAnimation.cancel(); 972 mChildrenOutlineFadeInAnimation = ObjectAnimator.ofFloat(this, "childrenOutlineAlpha", 1.0f); 973 mChildrenOutlineFadeInAnimation.setDuration(CHILDREN_OUTLINE_FADE_IN_DURATION); 974 mChildrenOutlineFadeInAnimation.start(); 975 } 976 } 977 978 void hideOutlines() { 979 if (!isSmall() && !mIsSwitchingState) { 980 if (mChildrenOutlineFadeInAnimation != null) mChildrenOutlineFadeInAnimation.cancel(); 981 if (mChildrenOutlineFadeOutAnimation != null) mChildrenOutlineFadeOutAnimation.cancel(); 982 mChildrenOutlineFadeOutAnimation = ObjectAnimator.ofFloat(this, "childrenOutlineAlpha", 0.0f); 983 mChildrenOutlineFadeOutAnimation.setDuration(CHILDREN_OUTLINE_FADE_OUT_DURATION); 984 mChildrenOutlineFadeOutAnimation.setStartDelay(CHILDREN_OUTLINE_FADE_OUT_DELAY); 985 mChildrenOutlineFadeOutAnimation.start(); 986 } 987 } 988 989 public void showOutlinesTemporarily() { 990 if (!mIsPageMoving && !isTouchActive()) { 991 snapToPage(mCurrentPage); 992 } 993 } 994 995 public void setChildrenOutlineAlpha(float alpha) { 996 mChildrenOutlineAlpha = alpha; 997 for (int i = 0; i < getChildCount(); i++) { 998 CellLayout cl = (CellLayout) getChildAt(i); 999 cl.setBackgroundAlpha(alpha); 1000 } 1001 } 1002 1003 public float getChildrenOutlineAlpha() { 1004 return mChildrenOutlineAlpha; 1005 } 1006 1007 void disableBackground() { 1008 mDrawBackground = false; 1009 } 1010 void enableBackground() { 1011 mDrawBackground = true; 1012 } 1013 1014 private void animateBackgroundGradient(float finalAlpha, boolean animated) { 1015 if (mBackground == null) return; 1016 if (mBackgroundFadeInAnimation != null) { 1017 mBackgroundFadeInAnimation.cancel(); 1018 mBackgroundFadeInAnimation = null; 1019 } 1020 if (mBackgroundFadeOutAnimation != null) { 1021 mBackgroundFadeOutAnimation.cancel(); 1022 mBackgroundFadeOutAnimation = null; 1023 } 1024 float startAlpha = getBackgroundAlpha(); 1025 if (finalAlpha != startAlpha) { 1026 if (animated) { 1027 mBackgroundFadeOutAnimation = ValueAnimator.ofFloat(startAlpha, finalAlpha); 1028 mBackgroundFadeOutAnimation.addUpdateListener(new AnimatorUpdateListener() { 1029 public void onAnimationUpdate(ValueAnimator animation) { 1030 setBackgroundAlpha(((Float) animation.getAnimatedValue()).floatValue()); 1031 } 1032 }); 1033 mBackgroundFadeOutAnimation.setInterpolator(new DecelerateInterpolator(1.5f)); 1034 mBackgroundFadeOutAnimation.setDuration(BACKGROUND_FADE_OUT_DURATION); 1035 mBackgroundFadeOutAnimation.start(); 1036 } else { 1037 setBackgroundAlpha(finalAlpha); 1038 } 1039 } 1040 } 1041 1042 public void setBackgroundAlpha(float alpha) { 1043 if (alpha != mBackgroundAlpha) { 1044 mBackgroundAlpha = alpha; 1045 invalidate(); 1046 } 1047 } 1048 1049 public float getBackgroundAlpha() { 1050 return mBackgroundAlpha; 1051 } 1052 1053 /** 1054 * Due to 3D transformations, if two CellLayouts are theoretically touching each other, 1055 * on the xy plane, when one is rotated along the y-axis, the gap between them is perceived 1056 * as being larger. This method computes what offset the rotated view should be translated 1057 * in order to minimize this perceived gap. 1058 * @param degrees Angle of the view 1059 * @param width Width of the view 1060 * @param height Height of the view 1061 * @return Offset to be used in a View.setTranslationX() call 1062 */ 1063 private float getOffsetXForRotation(float degrees, int width, int height) { 1064 mMatrix.reset(); 1065 mCamera.save(); 1066 mCamera.rotateY(Math.abs(degrees)); 1067 mCamera.getMatrix(mMatrix); 1068 mCamera.restore(); 1069 1070 mMatrix.preTranslate(-width * 0.5f, -height * 0.5f); 1071 mMatrix.postTranslate(width * 0.5f, height * 0.5f); 1072 mTempFloat2[0] = width; 1073 mTempFloat2[1] = height; 1074 mMatrix.mapPoints(mTempFloat2); 1075 return (width - mTempFloat2[0]) * (degrees > 0.0f ? 1.0f : -1.0f); 1076 } 1077 1078 float backgroundAlphaInterpolator(float r) { 1079 float pivotA = 0.1f; 1080 float pivotB = 0.4f; 1081 if (r < pivotA) { 1082 return 0; 1083 } else if (r > pivotB) { 1084 return 1.0f; 1085 } else { 1086 return (r - pivotA)/(pivotB - pivotA); 1087 } 1088 } 1089 1090 float overScrollBackgroundAlphaInterpolator(float r) { 1091 float threshold = 0.08f; 1092 1093 if (r > mOverScrollMaxBackgroundAlpha) { 1094 mOverScrollMaxBackgroundAlpha = r; 1095 } else if (r < mOverScrollMaxBackgroundAlpha) { 1096 r = mOverScrollMaxBackgroundAlpha; 1097 } 1098 1099 return Math.min(r / threshold, 1.0f); 1100 } 1101 1102 private void screenScrolledLargeUI(int screenCenter) { 1103 for (int i = 0; i < getChildCount(); i++) { 1104 CellLayout cl = (CellLayout) getChildAt(i); 1105 if (cl != null) { 1106 float scrollProgress = getScrollProgress(screenCenter, cl, i); 1107 float rotation = WORKSPACE_ROTATION * scrollProgress; 1108 float translationX = getOffsetXForRotation(rotation, cl.getWidth(), cl.getHeight()); 1109 1110 // If the current page (i) is being over scrolled, we use a different 1111 // set of rules for setting the background alpha multiplier. 1112 if (!isSmall()) { 1113 if ((mScrollX < 0 && i == 0) || (mScrollX > mMaxScrollX && 1114 i == getChildCount() -1 )) { 1115 cl.setBackgroundAlphaMultiplier( 1116 overScrollBackgroundAlphaInterpolator(Math.abs(scrollProgress))); 1117 mOverScrollPageIndex = i; 1118 } else if (mOverScrollPageIndex != i) { 1119 cl.setBackgroundAlphaMultiplier( 1120 backgroundAlphaInterpolator(Math.abs(scrollProgress))); 1121 } 1122 } 1123 cl.setTranslationX(translationX); 1124 cl.setRotationY(rotation); 1125 } 1126 } 1127 } 1128 1129 private void resetCellLayoutTransforms(CellLayout cl, boolean left) { 1130 cl.setTranslationX(0); 1131 cl.setRotationY(0); 1132 cl.setOverScrollAmount(0, left); 1133 cl.setPivotX(cl.getMeasuredWidth() / 2); 1134 cl.setPivotY(cl.getMeasuredHeight() / 2); 1135 } 1136 1137 private void screenScrolledStandardUI(int screenCenter) { 1138 if (mScrollX < 0 || mScrollX > mMaxScrollX) { 1139 int index = mScrollX < 0 ? 0 : getChildCount() - 1; 1140 CellLayout cl = (CellLayout) getChildAt(index); 1141 float scrollProgress = getScrollProgress(screenCenter, cl, index); 1142 cl.setOverScrollAmount(Math.abs(scrollProgress), index == 0); 1143 float translationX = index == 0 ? mScrollX : - (mMaxScrollX - mScrollX); 1144 float rotation = - WORKSPACE_OVERSCROLL_ROTATION * scrollProgress; 1145 cl.setCameraDistance(mDensity * CAMERA_DISTANCE); 1146 cl.setPivotX(cl.getMeasuredWidth() * (index == 0 ? 0.75f : 0.25f)); 1147 cl.setTranslationX(translationX); 1148 cl.setRotationY(rotation); 1149 } else { 1150 // We don't want to mess with the translations during transitions 1151 if (!isSwitchingState()) { 1152 resetCellLayoutTransforms((CellLayout) getChildAt(0), true); 1153 resetCellLayoutTransforms((CellLayout) getChildAt(getChildCount() - 1), false); 1154 } 1155 } 1156 } 1157 1158 @Override 1159 protected void screenScrolled(int screenCenter) { 1160 super.screenScrolled(screenCenter); 1161 if (LauncherApplication.isScreenLarge()) { 1162 screenScrolledLargeUI(screenCenter); 1163 } else { 1164 screenScrolledStandardUI(screenCenter); 1165 } 1166 } 1167 1168 @Override 1169 protected void overScroll(float amount) { 1170 if (LauncherApplication.isScreenLarge()) { 1171 dampedOverScroll(amount); 1172 } else { 1173 acceleratedOverScroll(amount); 1174 } 1175 } 1176 1177 protected void onAttachedToWindow() { 1178 super.onAttachedToWindow(); 1179 mWindowToken = getWindowToken(); 1180 computeScroll(); 1181 mDragController.setWindowToken(mWindowToken); 1182 } 1183 1184 protected void onDetachedFromWindow() { 1185 mWindowToken = null; 1186 } 1187 1188 @Override 1189 protected void onLayout(boolean changed, int left, int top, int right, int bottom) { 1190 if (mFirstLayout && mCurrentPage >= 0 && mCurrentPage < getChildCount()) { 1191 mUpdateWallpaperOffsetImmediately = true; 1192 } 1193 super.onLayout(changed, left, top, right, bottom); 1194 1195 // if shrinkToBottom() is called on initialization, it has to be deferred 1196 // until after the first call to onLayout so that it has the correct width 1197 if (mSwitchStateAfterFirstLayout) { 1198 mSwitchStateAfterFirstLayout = false; 1199 // shrink can trigger a synchronous onLayout call, so we 1200 // post this to avoid a stack overflow / tangled onLayout calls 1201 post(new Runnable() { 1202 public void run() { 1203 changeState(mStateAfterFirstLayout, false); 1204 } 1205 }); 1206 } 1207 } 1208 1209 @Override 1210 protected void onDraw(Canvas canvas) { 1211 updateWallpaperOffsets(); 1212 1213 // Draw the background gradient if necessary 1214 if (mBackground != null && mBackgroundAlpha > 0.0f && mDrawBackground) { 1215 int alpha = (int) (mBackgroundAlpha * 255); 1216 mBackground.setAlpha(alpha); 1217 mBackground.setBounds(mScrollX, 0, mScrollX + getMeasuredWidth(), 1218 getMeasuredHeight()); 1219 mBackground.draw(canvas); 1220 } 1221 1222 super.onDraw(canvas); 1223 } 1224 1225 @Override 1226 protected void dispatchDraw(Canvas canvas) { 1227 super.dispatchDraw(canvas); 1228 1229 if (mInScrollArea && !LauncherApplication.isScreenLarge()) { 1230 final int width = getWidth(); 1231 final int height = getHeight(); 1232 final int pageHeight = getChildAt(0).getHeight(); 1233 1234 // Set the height of the outline to be the height of the page 1235 final int offset = (height - pageHeight - mPaddingTop - mPaddingBottom) / 2; 1236 final int paddingTop = mPaddingTop + offset; 1237 final int paddingBottom = mPaddingBottom + offset; 1238 1239 final CellLayout leftPage = (CellLayout) getChildAt(mCurrentPage - 1); 1240 final CellLayout rightPage = (CellLayout) getChildAt(mCurrentPage + 1); 1241 1242 if (leftPage != null && leftPage.getIsDragOverlapping()) { 1243 final Drawable d = getResources().getDrawable(R.drawable.page_hover_left_holo); 1244 d.setBounds(mScrollX, paddingTop, mScrollX + d.getIntrinsicWidth(), 1245 height - paddingBottom); 1246 d.draw(canvas); 1247 } else if (rightPage != null && rightPage.getIsDragOverlapping()) { 1248 final Drawable d = getResources().getDrawable(R.drawable.page_hover_right_holo); 1249 d.setBounds(mScrollX + width - d.getIntrinsicWidth(), paddingTop, mScrollX + width, 1250 height - paddingBottom); 1251 d.draw(canvas); 1252 } 1253 } 1254 } 1255 1256 @Override 1257 protected boolean onRequestFocusInDescendants(int direction, Rect previouslyFocusedRect) { 1258 if (!mLauncher.isAllAppsVisible()) { 1259 final Folder openFolder = getOpenFolder(); 1260 if (openFolder != null) { 1261 return openFolder.requestFocus(direction, previouslyFocusedRect); 1262 } else { 1263 return super.onRequestFocusInDescendants(direction, previouslyFocusedRect); 1264 } 1265 } 1266 return false; 1267 } 1268 1269 @Override 1270 public int getDescendantFocusability() { 1271 if (isSmall()) { 1272 return ViewGroup.FOCUS_BLOCK_DESCENDANTS; 1273 } 1274 return super.getDescendantFocusability(); 1275 } 1276 1277 @Override 1278 public void addFocusables(ArrayList<View> views, int direction, int focusableMode) { 1279 if (!mLauncher.isAllAppsVisible()) { 1280 final Folder openFolder = getOpenFolder(); 1281 if (openFolder != null) { 1282 openFolder.addFocusables(views, direction); 1283 } else { 1284 super.addFocusables(views, direction, focusableMode); 1285 } 1286 } 1287 } 1288 1289 public boolean isSmall() { 1290 return mState == State.SMALL || mState == State.SPRING_LOADED; 1291 } 1292 1293 void enableChildrenCache(int fromPage, int toPage) { 1294 if (fromPage > toPage) { 1295 final int temp = fromPage; 1296 fromPage = toPage; 1297 toPage = temp; 1298 } 1299 1300 final int screenCount = getChildCount(); 1301 1302 fromPage = Math.max(fromPage, 0); 1303 toPage = Math.min(toPage, screenCount - 1); 1304 1305 for (int i = fromPage; i <= toPage; i++) { 1306 final CellLayout layout = (CellLayout) getChildAt(i); 1307 layout.setChildrenDrawnWithCacheEnabled(true); 1308 layout.setChildrenDrawingCacheEnabled(true); 1309 } 1310 } 1311 1312 void clearChildrenCache() { 1313 final int screenCount = getChildCount(); 1314 for (int i = 0; i < screenCount; i++) { 1315 final CellLayout layout = (CellLayout) getChildAt(i); 1316 layout.setChildrenDrawnWithCacheEnabled(false); 1317 // In software mode, we don't want the items to continue to be drawn into bitmaps 1318 if (!isHardwareAccelerated()) { 1319 layout.setChildrenDrawingCacheEnabled(false); 1320 } 1321 } 1322 } 1323 1324 private void updateChildrenLayersEnabled() { 1325 boolean small = isSmall() || mIsSwitchingState; 1326 boolean dragging = mAnimatingViewIntoPlace || mIsDragOccuring; 1327 boolean enableChildrenLayers = small || dragging || isPageMoving(); 1328 1329 if (enableChildrenLayers != mChildrenLayersEnabled) { 1330 mChildrenLayersEnabled = enableChildrenLayers; 1331 for (int i = 0; i < getPageCount(); i++) { 1332 ((ViewGroup)getChildAt(i)).setChildrenLayersEnabled(enableChildrenLayers); 1333 } 1334 } 1335 } 1336 1337 protected void onWallpaperTap(MotionEvent ev) { 1338 final int[] position = mTempCell; 1339 getLocationOnScreen(position); 1340 1341 int pointerIndex = ev.getActionIndex(); 1342 position[0] += (int) ev.getX(pointerIndex); 1343 position[1] += (int) ev.getY(pointerIndex); 1344 1345 mWallpaperManager.sendWallpaperCommand(getWindowToken(), 1346 ev.getAction() == MotionEvent.ACTION_UP 1347 ? WallpaperManager.COMMAND_TAP : WallpaperManager.COMMAND_SECONDARY_TAP, 1348 position[0], position[1], 0, null); 1349 } 1350 1351 @Override 1352 protected void updateAdjacentPagesAlpha() { 1353 if (!isSmall()) { 1354 super.updateAdjacentPagesAlpha(); 1355 } 1356 } 1357 1358 /* 1359 * This interpolator emulates the rate at which the perceived scale of an object changes 1360 * as its distance from a camera increases. When this interpolator is applied to a scale 1361 * animation on a view, it evokes the sense that the object is shrinking due to moving away 1362 * from the camera. 1363 */ 1364 static class ZInterpolator implements TimeInterpolator { 1365 private float focalLength; 1366 1367 public ZInterpolator(float foc) { 1368 focalLength = foc; 1369 } 1370 1371 public float getInterpolation(float input) { 1372 return (1.0f - focalLength / (focalLength + input)) / 1373 (1.0f - focalLength / (focalLength + 1.0f)); 1374 } 1375 } 1376 1377 /* 1378 * The exact reverse of ZInterpolator. 1379 */ 1380 static class InverseZInterpolator implements TimeInterpolator { 1381 private ZInterpolator zInterpolator; 1382 public InverseZInterpolator(float foc) { 1383 zInterpolator = new ZInterpolator(foc); 1384 } 1385 public float getInterpolation(float input) { 1386 return 1 - zInterpolator.getInterpolation(1 - input); 1387 } 1388 } 1389 1390 /* 1391 * ZInterpolator compounded with an ease-out. 1392 */ 1393 static class ZoomOutInterpolator implements TimeInterpolator { 1394 private final DecelerateInterpolator decelerate = new DecelerateInterpolator(0.75f); 1395 private final ZInterpolator zInterpolator = new ZInterpolator(0.13f); 1396 1397 public float getInterpolation(float input) { 1398 return decelerate.getInterpolation(zInterpolator.getInterpolation(input)); 1399 } 1400 } 1401 1402 /* 1403 * InvereZInterpolator compounded with an ease-out. 1404 */ 1405 static class ZoomInInterpolator implements TimeInterpolator { 1406 private final InverseZInterpolator inverseZInterpolator = new InverseZInterpolator(0.35f); 1407 private final DecelerateInterpolator decelerate = new DecelerateInterpolator(3.0f); 1408 1409 public float getInterpolation(float input) { 1410 return decelerate.getInterpolation(inverseZInterpolator.getInterpolation(input)); 1411 } 1412 } 1413 1414 private final ZoomInInterpolator mZoomInInterpolator = new ZoomInInterpolator(); 1415 1416 /* 1417 * 1418 * We call these methods (onDragStartedWithItemSpans/onDragStartedWithSize) whenever we 1419 * start a drag in Launcher, regardless of whether the drag has ever entered the Workspace 1420 * 1421 * These methods mark the appropriate pages as accepting drops (which alters their visual 1422 * appearance). 1423 * 1424 */ 1425 public void onDragStartedWithItem(View v) { 1426 final Canvas canvas = new Canvas(); 1427 1428 // We need to add extra padding to the bitmap to make room for the glow effect 1429 final int bitmapPadding = HolographicOutlineHelper.MAX_OUTER_BLUR_RADIUS; 1430 1431 // The outline is used to visualize where the item will land if dropped 1432 mDragOutline = createDragOutline(v, canvas, bitmapPadding); 1433 } 1434 1435 public void onDragStartedWithItemSpans(int spanX, int spanY, Bitmap b) { 1436 final Canvas canvas = new Canvas(); 1437 1438 // We need to add extra padding to the bitmap to make room for the glow effect 1439 final int bitmapPadding = HolographicOutlineHelper.MAX_OUTER_BLUR_RADIUS; 1440 1441 CellLayout cl = (CellLayout) getChildAt(0); 1442 1443 int[] size = cl.cellSpansToSize(spanX, spanY); 1444 1445 // The outline is used to visualize where the item will land if dropped 1446 mDragOutline = createDragOutline(b, canvas, bitmapPadding, size[0], size[1]); 1447 } 1448 1449 // we call this method whenever a drag and drop in Launcher finishes, even if Workspace was 1450 // never dragged over 1451 public void onDragStopped(boolean success) { 1452 // In the success case, DragController has already called onDragExit() 1453 if (!success) { 1454 doDragExit(null); 1455 } 1456 } 1457 1458 public void exitWidgetResizeMode() { 1459 DragLayer dragLayer = mLauncher.getDragLayer(); 1460 dragLayer.clearAllResizeFrames(); 1461 } 1462 1463 private void initAnimationArrays() { 1464 final int childCount = getChildCount(); 1465 if (mOldTranslationXs != null) return; 1466 mOldTranslationXs = new float[childCount]; 1467 mOldTranslationYs = new float[childCount]; 1468 mOldScaleXs = new float[childCount]; 1469 mOldScaleYs = new float[childCount]; 1470 mOldBackgroundAlphas = new float[childCount]; 1471 mOldBackgroundAlphaMultipliers = new float[childCount]; 1472 mOldAlphas = new float[childCount]; 1473 mOldRotationYs = new float[childCount]; 1474 mNewTranslationXs = new float[childCount]; 1475 mNewTranslationYs = new float[childCount]; 1476 mNewScaleXs = new float[childCount]; 1477 mNewScaleYs = new float[childCount]; 1478 mNewBackgroundAlphas = new float[childCount]; 1479 mNewBackgroundAlphaMultipliers = new float[childCount]; 1480 mNewAlphas = new float[childCount]; 1481 mNewRotationYs = new float[childCount]; 1482 } 1483 1484 public void changeState(State shrinkState) { 1485 changeState(shrinkState, true); 1486 } 1487 1488 void changeState(final State state, boolean animated) { 1489 changeState(state, animated, 0); 1490 } 1491 1492 void changeState(final State state, boolean animated, int delay) { 1493 if (mFirstLayout) { 1494 // (mFirstLayout == "first layout has not happened yet") 1495 // cancel any pending shrinks that were set earlier 1496 mSwitchStateAfterFirstLayout = false; 1497 mStateAfterFirstLayout = state; 1498 return; 1499 } 1500 1501 // Initialize animation arrays for the first time if necessary 1502 initAnimationArrays(); 1503 1504 // Cancel any running transition animations 1505 if (mAnimator != null) mAnimator.cancel(); 1506 mAnimator = new AnimatorSet(); 1507 1508 // Stop any scrolling, move to the current page right away 1509 setCurrentPage((mNextPage != INVALID_PAGE) ? mNextPage : mCurrentPage); 1510 1511 final State oldState = mState; 1512 final boolean oldStateIsNormal = (oldState == State.NORMAL); 1513 final boolean oldStateIsSpringLoaded = (oldState == State.SPRING_LOADED); 1514 final boolean oldStateIsSmall = (oldState == State.SMALL); 1515 mState = state; 1516 final boolean stateIsNormal = (state == State.NORMAL); 1517 final boolean stateIsSpringLoaded = (state == State.SPRING_LOADED); 1518 final boolean stateIsSmall = (state == State.SMALL); 1519 float finalScaleFactor = 1.0f; 1520 float finalBackgroundAlpha = stateIsSpringLoaded ? 1.0f : 0f; 1521 float translationX = 0; 1522 float translationY = 0; 1523 boolean zoomIn = true; 1524 1525 if (state != State.NORMAL) { 1526 finalScaleFactor = mSpringLoadedShrinkFactor - (stateIsSmall ? 0.1f : 0); 1527 if (oldStateIsNormal && stateIsSmall) { 1528 zoomIn = false; 1529 setLayoutScale(finalScaleFactor); 1530 updateChildrenLayersEnabled(); 1531 } else { 1532 finalBackgroundAlpha = 1.0f; 1533 setLayoutScale(finalScaleFactor); 1534 } 1535 } else { 1536 setLayoutScale(1.0f); 1537 } 1538 1539 final int duration = zoomIn ? 1540 getResources().getInteger(R.integer.config_workspaceUnshrinkTime) : 1541 getResources().getInteger(R.integer.config_appsCustomizeWorkspaceShrinkTime); 1542 for (int i = 0; i < getChildCount(); i++) { 1543 final CellLayout cl = (CellLayout) getChildAt(i); 1544 float rotation = 0f; 1545 float initialAlpha = cl.getAlpha(); 1546 float finalAlphaMultiplierValue = 1f; 1547 float finalAlpha = (!mFadeInAdjacentScreens || stateIsSpringLoaded || 1548 (i == mCurrentPage)) ? 1f : 0f; 1549 1550 // Determine the pages alpha during the state transition 1551 if ((oldStateIsSmall && stateIsNormal) || 1552 (oldStateIsNormal && stateIsSmall)) { 1553 // To/from workspace - only show the current page unless the transition is not 1554 // animated and the animation end callback below doesn't run 1555 if (i == mCurrentPage || !animated) { 1556 finalAlpha = 1f; 1557 finalAlphaMultiplierValue = 0f; 1558 } else { 1559 initialAlpha = 0f; 1560 finalAlpha = 0f; 1561 } 1562 } 1563 1564 // Update the rotation of the screen (don't apply rotation on Phone UI) 1565 if (LauncherApplication.isScreenLarge()) { 1566 if (i < mCurrentPage) { 1567 rotation = WORKSPACE_ROTATION; 1568 } else if (i > mCurrentPage) { 1569 rotation = -WORKSPACE_ROTATION; 1570 } 1571 } 1572 1573 // If the screen is not xlarge, then don't rotate the CellLayouts 1574 // NOTE: If we don't update the side pages alpha, then we should not hide the side 1575 // pages. see unshrink(). 1576 if (LauncherApplication.isScreenLarge()) { 1577 translationX = getOffsetXForRotation(rotation, cl.getWidth(), cl.getHeight()); 1578 } 1579 1580 mOldAlphas[i] = initialAlpha; 1581 mNewAlphas[i] = finalAlpha; 1582 if (animated) { 1583 mOldTranslationXs[i] = cl.getTranslationX(); 1584 mOldTranslationYs[i] = cl.getTranslationY(); 1585 mOldScaleXs[i] = cl.getScaleX(); 1586 mOldScaleYs[i] = cl.getScaleY(); 1587 mOldBackgroundAlphas[i] = cl.getBackgroundAlpha(); 1588 mOldBackgroundAlphaMultipliers[i] = cl.getBackgroundAlphaMultiplier(); 1589 mOldRotationYs[i] = cl.getRotationY(); 1590 1591 mNewTranslationXs[i] = translationX; 1592 mNewTranslationYs[i] = translationY; 1593 mNewScaleXs[i] = finalScaleFactor; 1594 mNewScaleYs[i] = finalScaleFactor; 1595 mNewBackgroundAlphas[i] = finalBackgroundAlpha; 1596 mNewBackgroundAlphaMultipliers[i] = finalAlphaMultiplierValue; 1597 mNewRotationYs[i] = rotation; 1598 } else { 1599 cl.setTranslationX(translationX); 1600 cl.setTranslationY(translationY); 1601 cl.setScaleX(finalScaleFactor); 1602 cl.setScaleY(finalScaleFactor); 1603 cl.setBackgroundAlpha(finalBackgroundAlpha); 1604 cl.setBackgroundAlphaMultiplier(finalAlphaMultiplierValue); 1605 cl.setAlpha(finalAlpha); 1606 cl.setRotationY(rotation); 1607 mChangeStateAnimationListener.onAnimationEnd(null); 1608 } 1609 } 1610 1611 if (animated) { 1612 ValueAnimator animWithInterpolator = 1613 ValueAnimator.ofFloat(0f, 1f).setDuration(duration); 1614 1615 if (zoomIn) { 1616 animWithInterpolator.setInterpolator(mZoomInInterpolator); 1617 } 1618 1619 animWithInterpolator.addListener(new AnimatorListenerAdapter() { 1620 @Override 1621 public void onAnimationEnd(android.animation.Animator animation) { 1622 // The above code to determine initialAlpha and finalAlpha will ensure that only 1623 // the current page is visible during (and subsequently, after) the transition 1624 // animation. If fade adjacent pages is disabled, then re-enable the page 1625 // visibility after the transition animation. 1626 if (!mFadeInAdjacentScreens && stateIsNormal && oldStateIsSmall) { 1627 for (int i = 0; i < getChildCount(); i++) { 1628 final CellLayout cl = (CellLayout) getChildAt(i); 1629 cl.setAlpha(1f); 1630 } 1631 } 1632 } 1633 }); 1634 animWithInterpolator.addUpdateListener(new LauncherAnimatorUpdateListener() { 1635 public void onAnimationUpdate(float a, float b) { 1636 mTransitionProgress = b; 1637 if (b == 0f) { 1638 // an optimization, but not required 1639 return; 1640 } 1641 invalidate(); 1642 for (int i = 0; i < getChildCount(); i++) { 1643 final CellLayout cl = (CellLayout) getChildAt(i); 1644 cl.fastInvalidate(); 1645 cl.setFastTranslationX(a * mOldTranslationXs[i] + b * mNewTranslationXs[i]); 1646 cl.setFastTranslationY(a * mOldTranslationYs[i] + b * mNewTranslationYs[i]); 1647 cl.setFastScaleX(a * mOldScaleXs[i] + b * mNewScaleXs[i]); 1648 cl.setFastScaleY(a * mOldScaleYs[i] + b * mNewScaleYs[i]); 1649 cl.setFastBackgroundAlpha( 1650 a * mOldBackgroundAlphas[i] + b * mNewBackgroundAlphas[i]); 1651 cl.setBackgroundAlphaMultiplier(a * mOldBackgroundAlphaMultipliers[i] + 1652 b * mNewBackgroundAlphaMultipliers[i]); 1653 cl.setFastAlpha(a * mOldAlphas[i] + b * mNewAlphas[i]); 1654 } 1655 } 1656 }); 1657 1658 ValueAnimator rotationAnim = 1659 ValueAnimator.ofFloat(0f, 1f).setDuration(duration); 1660 rotationAnim.setInterpolator(new DecelerateInterpolator(2.0f)); 1661 rotationAnim.addUpdateListener(new LauncherAnimatorUpdateListener() { 1662 public void onAnimationUpdate(float a, float b) { 1663 if (b == 0f) { 1664 // an optimization, but not required 1665 return; 1666 } 1667 for (int i = 0; i < getChildCount(); i++) { 1668 final CellLayout cl = (CellLayout) getChildAt(i); 1669 cl.setFastRotationY(a * mOldRotationYs[i] + b * mNewRotationYs[i]); 1670 } 1671 } 1672 }); 1673 1674 mAnimator.playTogether(animWithInterpolator, rotationAnim); 1675 mAnimator.setStartDelay(delay); 1676 // If we call this when we're not animated, onAnimationEnd is never called on 1677 // the listener; make sure we only use the listener when we're actually animating 1678 mAnimator.addListener(mChangeStateAnimationListener); 1679 mAnimator.start(); 1680 } 1681 1682 if (stateIsSpringLoaded) { 1683 // Right now we're covered by Apps Customize 1684 // Show the background gradient immediately, so the gradient will 1685 // be showing once AppsCustomize disappears 1686 animateBackgroundGradient(getResources().getInteger( 1687 R.integer.config_appsCustomizeSpringLoadedBgAlpha) / 100f, false); 1688 } else { 1689 // Fade the background gradient away 1690 animateBackgroundGradient(0f, true); 1691 } 1692 } 1693 1694 /** 1695 * Draw the View v into the given Canvas. 1696 * 1697 * @param v the view to draw 1698 * @param destCanvas the canvas to draw on 1699 * @param padding the horizontal and vertical padding to use when drawing 1700 */ 1701 private void drawDragView(View v, Canvas destCanvas, int padding, boolean pruneToDrawable) { 1702 final Rect clipRect = mTempRect; 1703 v.getDrawingRect(clipRect); 1704 1705 boolean textVisible = false; 1706 1707 destCanvas.save(); 1708 if (v instanceof TextView && pruneToDrawable) { 1709 Drawable d = ((TextView) v).getCompoundDrawables()[1]; 1710 clipRect.set(0, 0, d.getIntrinsicWidth() + padding, d.getIntrinsicHeight() + padding); 1711 destCanvas.translate(padding / 2, padding / 2); 1712 d.draw(destCanvas); 1713 } else { 1714 if (v instanceof FolderIcon) { 1715 // For FolderIcons the text can bleed into the icon area, and so we need to 1716 // hide the text completely (which can't be achieved by clipping). 1717 if (((FolderIcon) v).getTextVisible()) { 1718 ((FolderIcon) v).setTextVisible(false); 1719 textVisible = true; 1720 } 1721 } else if (v instanceof BubbleTextView) { 1722 final BubbleTextView tv = (BubbleTextView) v; 1723 clipRect.bottom = tv.getExtendedPaddingTop() - (int) BubbleTextView.PADDING_V + 1724 tv.getLayout().getLineTop(0); 1725 } else if (v instanceof TextView) { 1726 final TextView tv = (TextView) v; 1727 clipRect.bottom = tv.getExtendedPaddingTop() - tv.getCompoundDrawablePadding() + 1728 tv.getLayout().getLineTop(0); 1729 } 1730 destCanvas.translate(-v.getScrollX() + padding / 2, -v.getScrollY() + padding / 2); 1731 destCanvas.clipRect(clipRect, Op.REPLACE); 1732 v.draw(destCanvas); 1733 1734 // Restore text visibility of FolderIcon if necessary 1735 if (textVisible) { 1736 ((FolderIcon) v).setTextVisible(true); 1737 } 1738 } 1739 destCanvas.restore(); 1740 } 1741 1742 /** 1743 * Returns a new bitmap to show when the given View is being dragged around. 1744 * Responsibility for the bitmap is transferred to the caller. 1745 */ 1746 public Bitmap createDragBitmap(View v, Canvas canvas, int padding) { 1747 final int outlineColor = getResources().getColor(android.R.color.holo_blue_light); 1748 Bitmap b; 1749 1750 if (v instanceof TextView) { 1751 Drawable d = ((TextView) v).getCompoundDrawables()[1]; 1752 b = Bitmap.createBitmap(d.getIntrinsicWidth() + padding, 1753 d.getIntrinsicHeight() + padding, Bitmap.Config.ARGB_8888); 1754 } else { 1755 b = Bitmap.createBitmap( 1756 v.getWidth() + padding, v.getHeight() + padding, Bitmap.Config.ARGB_8888); 1757 } 1758 1759 canvas.setBitmap(b); 1760 drawDragView(v, canvas, padding, true); 1761 mOutlineHelper.applyOuterBlur(b, canvas, outlineColor); 1762 canvas.drawColor(mDragViewMultiplyColor, PorterDuff.Mode.MULTIPLY); 1763 canvas.setBitmap(null); 1764 1765 return b; 1766 } 1767 1768 /** 1769 * Returns a new bitmap to be used as the object outline, e.g. to visualize the drop location. 1770 * Responsibility for the bitmap is transferred to the caller. 1771 */ 1772 private Bitmap createDragOutline(View v, Canvas canvas, int padding) { 1773 final int outlineColor = getResources().getColor(android.R.color.holo_blue_light); 1774 final Bitmap b = Bitmap.createBitmap( 1775 v.getWidth() + padding, v.getHeight() + padding, Bitmap.Config.ARGB_8888); 1776 1777 canvas.setBitmap(b); 1778 drawDragView(v, canvas, padding, true); 1779 mOutlineHelper.applyMediumExpensiveOutlineWithBlur(b, canvas, outlineColor, outlineColor); 1780 canvas.setBitmap(null); 1781 return b; 1782 } 1783 1784 /** 1785 * Returns a new bitmap to be used as the object outline, e.g. to visualize the drop location. 1786 * Responsibility for the bitmap is transferred to the caller. 1787 */ 1788 private Bitmap createDragOutline(Bitmap orig, Canvas canvas, int padding, int w, int h) { 1789 final int outlineColor = getResources().getColor(android.R.color.holo_blue_light); 1790 final Bitmap b = Bitmap.createBitmap(w, h, Bitmap.Config.ARGB_8888); 1791 canvas.setBitmap(b); 1792 1793 Rect src = new Rect(0, 0, orig.getWidth(), orig.getHeight()); 1794 float scaleFactor = Math.min((w - padding) / (float) orig.getWidth(), 1795 (h - padding) / (float) orig.getHeight()); 1796 int scaledWidth = (int) (scaleFactor * orig.getWidth()); 1797 int scaledHeight = (int) (scaleFactor * orig.getHeight()); 1798 Rect dst = new Rect(0, 0, scaledWidth, scaledHeight); 1799 1800 // center the image 1801 dst.offset((w - scaledWidth) / 2, (h - scaledHeight) / 2); 1802 1803 Paint p = new Paint(); 1804 p.setFilterBitmap(true); 1805 canvas.drawBitmap(orig, src, dst, p); 1806 mOutlineHelper.applyMediumExpensiveOutlineWithBlur(b, canvas, outlineColor, outlineColor); 1807 canvas.setBitmap(null); 1808 1809 return b; 1810 } 1811 1812 /** 1813 * Creates a drag outline to represent a drop (that we don't have the actual information for 1814 * yet). May be changed in the future to alter the drop outline slightly depending on the 1815 * clip description mime data. 1816 */ 1817 private Bitmap createExternalDragOutline(Canvas canvas, int padding) { 1818 Resources r = getResources(); 1819 final int outlineColor = r.getColor(android.R.color.holo_blue_light); 1820 final int iconWidth = r.getDimensionPixelSize(R.dimen.workspace_cell_width); 1821 final int iconHeight = r.getDimensionPixelSize(R.dimen.workspace_cell_height); 1822 final int rectRadius = r.getDimensionPixelSize(R.dimen.external_drop_icon_rect_radius); 1823 final int inset = (int) (Math.min(iconWidth, iconHeight) * 0.2f); 1824 final Bitmap b = Bitmap.createBitmap( 1825 iconWidth + padding, iconHeight + padding, Bitmap.Config.ARGB_8888); 1826 1827 canvas.setBitmap(b); 1828 canvas.drawRoundRect(new RectF(inset, inset, iconWidth - inset, iconHeight - inset), 1829 rectRadius, rectRadius, mExternalDragOutlinePaint); 1830 mOutlineHelper.applyMediumExpensiveOutlineWithBlur(b, canvas, outlineColor, outlineColor); 1831 canvas.setBitmap(null); 1832 return b; 1833 } 1834 1835 void startDrag(CellLayout.CellInfo cellInfo) { 1836 View child = cellInfo.cell; 1837 1838 // Make sure the drag was started by a long press as opposed to a long click. 1839 if (!child.isInTouchMode()) { 1840 return; 1841 } 1842 1843 mDragInfo = cellInfo; 1844 child.setVisibility(GONE); 1845 1846 child.clearFocus(); 1847 child.setPressed(false); 1848 1849 final Canvas canvas = new Canvas(); 1850 1851 // We need to add extra padding to the bitmap to make room for the glow effect 1852 final int bitmapPadding = HolographicOutlineHelper.MAX_OUTER_BLUR_RADIUS; 1853 1854 // The outline is used to visualize where the item will land if dropped 1855 mDragOutline = createDragOutline(child, canvas, bitmapPadding); 1856 beginDragShared(child, this); 1857 } 1858 1859 public void beginDragShared(View child, DragSource source) { 1860 Resources r = getResources(); 1861 1862 // We need to add extra padding to the bitmap to make room for the glow effect 1863 final int bitmapPadding = HolographicOutlineHelper.MAX_OUTER_BLUR_RADIUS; 1864 1865 // The drag bitmap follows the touch point around on the screen 1866 final Bitmap b = createDragBitmap(child, new Canvas(), bitmapPadding); 1867 1868 final int bmpWidth = b.getWidth(); 1869 1870 mLauncher.getDragLayer().getLocationInDragLayer(child, mTempXY); 1871 final int dragLayerX = (int) mTempXY[0] + (child.getWidth() - bmpWidth) / 2; 1872 int dragLayerY = mTempXY[1] - bitmapPadding / 2; 1873 1874 Point dragVisualizeOffset = null; 1875 Rect dragRect = null; 1876 if (child instanceof BubbleTextView || child instanceof PagedViewIcon) { 1877 int iconSize = r.getDimensionPixelSize(R.dimen.app_icon_size); 1878 int iconPaddingTop = r.getDimensionPixelSize(R.dimen.app_icon_padding_top); 1879 int top = child.getPaddingTop(); 1880 int left = (bmpWidth - iconSize) / 2; 1881 int right = left + iconSize; 1882 int bottom = top + iconSize; 1883 dragLayerY += top; 1884 // Note: The drag region is used to calculate drag layer offsets, but the 1885 // dragVisualizeOffset in addition to the dragRect (the size) to position the outline. 1886 dragVisualizeOffset = new Point(-bitmapPadding / 2, iconPaddingTop - bitmapPadding / 2); 1887 dragRect = new Rect(left, top, right, bottom); 1888 } else if (child instanceof FolderIcon) { 1889 int previewSize = r.getDimensionPixelSize(R.dimen.folder_preview_size); 1890 dragRect = new Rect(0, 0, child.getWidth(), previewSize); 1891 } 1892 1893 // Clear the pressed state if necessary 1894 if (child instanceof BubbleTextView) { 1895 BubbleTextView icon = (BubbleTextView) child; 1896 icon.clearPressedOrFocusedBackground(); 1897 } 1898 1899 mDragController.startDrag(b, dragLayerX, dragLayerY, source, child.getTag(), 1900 DragController.DRAG_ACTION_MOVE, dragVisualizeOffset, dragRect); 1901 b.recycle(); 1902 } 1903 1904 void addApplicationShortcut(ShortcutInfo info, CellLayout target, long container, int screen, 1905 int cellX, int cellY, boolean insertAtFirst, int intersectX, int intersectY) { 1906 View view = mLauncher.createShortcut(R.layout.application, target, (ShortcutInfo) info); 1907 1908 final int[] cellXY = new int[2]; 1909 target.findCellForSpanThatIntersects(cellXY, 1, 1, intersectX, intersectY); 1910 addInScreen(view, container, screen, cellXY[0], cellXY[1], 1, 1, insertAtFirst); 1911 LauncherModel.addOrMoveItemInDatabase(mLauncher, info, container, screen, cellXY[0], 1912 cellXY[1]); 1913 } 1914 1915 public boolean transitionStateShouldAllowDrop() { 1916 return (!isSwitchingState() || mTransitionProgress > 0.5f); 1917 } 1918 1919 /** 1920 * {@inheritDoc} 1921 */ 1922 public boolean acceptDrop(DragObject d) { 1923 // If it's an external drop (e.g. from All Apps), check if it should be accepted 1924 if (d.dragSource != this) { 1925 // Don't accept the drop if we're not over a screen at time of drop 1926 if (mDragTargetLayout == null) { 1927 return false; 1928 } 1929 if (!transitionStateShouldAllowDrop()) return false; 1930 1931 mDragViewVisualCenter = getDragViewVisualCenter(d.x, d.y, d.xOffset, d.yOffset, 1932 d.dragView, mDragViewVisualCenter); 1933 1934 // We want the point to be mapped to the dragTarget. 1935 if (mLauncher.isHotseatLayout(mDragTargetLayout)) { 1936 mapPointFromSelfToSibling(mLauncher.getHotseat(), mDragViewVisualCenter); 1937 } else { 1938 mapPointFromSelfToChild(mDragTargetLayout, mDragViewVisualCenter, null); 1939 } 1940 1941 int spanX = 1; 1942 int spanY = 1; 1943 View ignoreView = null; 1944 if (mDragInfo != null) { 1945 final CellLayout.CellInfo dragCellInfo = mDragInfo; 1946 spanX = dragCellInfo.spanX; 1947 spanY = dragCellInfo.spanY; 1948 ignoreView = dragCellInfo.cell; 1949 } else { 1950 final ItemInfo dragInfo = (ItemInfo) d.dragInfo; 1951 spanX = dragInfo.spanX; 1952 spanY = dragInfo.spanY; 1953 } 1954 1955 mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], 1956 (int) mDragViewVisualCenter[1], spanX, spanY, mDragTargetLayout, mTargetCell); 1957 if (willCreateUserFolder((ItemInfo) d.dragInfo, mDragTargetLayout, mTargetCell, true)) { 1958 return true; 1959 } 1960 if (willAddToExistingUserFolder((ItemInfo) d.dragInfo, mDragTargetLayout, 1961 mTargetCell)) { 1962 return true; 1963 } 1964 1965 1966 // Don't accept the drop if there's no room for the item 1967 if (!mDragTargetLayout.findCellForSpanIgnoring(null, spanX, spanY, ignoreView)) { 1968 mLauncher.showOutOfSpaceMessage(); 1969 return false; 1970 } 1971 } 1972 return true; 1973 } 1974 1975 boolean willCreateUserFolder(ItemInfo info, CellLayout target, int[] targetCell, 1976 boolean considerTimeout) { 1977 View dropOverView = target.getChildAt(targetCell[0], targetCell[1]); 1978 1979 boolean hasntMoved = false; 1980 if (mDragInfo != null) { 1981 CellLayout cellParent = getParentCellLayoutForView(mDragInfo.cell); 1982 hasntMoved = (mDragInfo.cellX == targetCell[0] && 1983 mDragInfo.cellY == targetCell[1]) && (cellParent == target); 1984 } 1985 1986 if (dropOverView == null || hasntMoved || (considerTimeout && !mCreateUserFolderOnDrop)) { 1987 return false; 1988 } 1989 1990 boolean aboveShortcut = (dropOverView.getTag() instanceof ShortcutInfo); 1991 boolean willBecomeShortcut = 1992 (info.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPLICATION || 1993 info.itemType == LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT); 1994 1995 return (aboveShortcut && willBecomeShortcut); 1996 } 1997 1998 boolean willAddToExistingUserFolder(Object dragInfo, CellLayout target, int[] targetCell) { 1999 View dropOverView = target.getChildAt(targetCell[0], targetCell[1]); 2000 if (dropOverView instanceof FolderIcon) { 2001 FolderIcon fi = (FolderIcon) dropOverView; 2002 if (fi.acceptDrop(dragInfo)) { 2003 return true; 2004 } 2005 } 2006 return false; 2007 } 2008 2009 boolean createUserFolderIfNecessary(View newView, long container, CellLayout target, 2010 int[] targetCell, boolean external, DragView dragView, Runnable postAnimationRunnable) { 2011 View v = target.getChildAt(targetCell[0], targetCell[1]); 2012 boolean hasntMoved = false; 2013 if (mDragInfo != null) { 2014 CellLayout cellParent = getParentCellLayoutForView(mDragInfo.cell); 2015 hasntMoved = (mDragInfo.cellX == targetCell[0] && 2016 mDragInfo.cellY == targetCell[1]) && (cellParent == target); 2017 } 2018 2019 if (v == null || hasntMoved || !mCreateUserFolderOnDrop) return false; 2020 mCreateUserFolderOnDrop = false; 2021 final int screen = (targetCell == null) ? mDragInfo.screen : indexOfChild(target); 2022 2023 boolean aboveShortcut = (v.getTag() instanceof ShortcutInfo); 2024 boolean willBecomeShortcut = (newView.getTag() instanceof ShortcutInfo); 2025 2026 if (aboveShortcut && willBecomeShortcut) { 2027 ShortcutInfo sourceInfo = (ShortcutInfo) newView.getTag(); 2028 ShortcutInfo destInfo = (ShortcutInfo) v.getTag(); 2029 // if the drag started here, we need to remove it from the workspace 2030 if (!external) { 2031 getParentCellLayoutForView(mDragInfo.cell).removeView(mDragInfo.cell); 2032 } 2033 2034 Rect folderLocation = new Rect(); 2035 float scale = mLauncher.getDragLayer().getDescendantRectRelativeToSelf(v, folderLocation); 2036 target.removeView(v); 2037 2038 FolderIcon fi = 2039 mLauncher.addFolder(target, container, screen, targetCell[0], targetCell[1]); 2040 destInfo.cellX = -1; 2041 destInfo.cellY = -1; 2042 sourceInfo.cellX = -1; 2043 sourceInfo.cellY = -1; 2044 2045 // If the dragView is null, we can't animate 2046 boolean animate = dragView != null; 2047 if (animate) { 2048 fi.performCreateAnimation(destInfo, v, sourceInfo, dragView, folderLocation, scale, 2049 postAnimationRunnable); 2050 } else { 2051 fi.addItem(destInfo); 2052 fi.addItem(sourceInfo); 2053 } 2054 return true; 2055 } 2056 return false; 2057 } 2058 2059 boolean addToExistingFolderIfNecessary(View newView, CellLayout target, int[] targetCell, 2060 DragObject d, boolean external) { 2061 View dropOverView = target.getChildAt(targetCell[0], targetCell[1]); 2062 if (dropOverView instanceof FolderIcon) { 2063 FolderIcon fi = (FolderIcon) dropOverView; 2064 if (fi.acceptDrop(d.dragInfo)) { 2065 fi.onDrop(d); 2066 2067 // if the drag started here, we need to remove it from the workspace 2068 if (!external) { 2069 getParentCellLayoutForView(mDragInfo.cell).removeView(mDragInfo.cell); 2070 } 2071 return true; 2072 } 2073 } 2074 return false; 2075 } 2076 2077 public void onDrop(DragObject d) { 2078 mDragViewVisualCenter = getDragViewVisualCenter(d.x, d.y, d.xOffset, d.yOffset, d.dragView, 2079 mDragViewVisualCenter); 2080 2081 // We want the point to be mapped to the dragTarget. 2082 if (mDragTargetLayout != null) { 2083 if (mLauncher.isHotseatLayout(mDragTargetLayout)) { 2084 mapPointFromSelfToSibling(mLauncher.getHotseat(), mDragViewVisualCenter); 2085 } else { 2086 mapPointFromSelfToChild(mDragTargetLayout, mDragViewVisualCenter, null); 2087 } 2088 } 2089 2090 CellLayout dropTargetLayout = mDragTargetLayout; 2091 2092 int snapScreen = -1; 2093 if (d.dragSource != this) { 2094 final int[] touchXY = new int[] { (int) mDragViewVisualCenter[0], 2095 (int) mDragViewVisualCenter[1] }; 2096 onDropExternal(touchXY, d.dragInfo, dropTargetLayout, false, d); 2097 } else if (mDragInfo != null) { 2098 final View cell = mDragInfo.cell; 2099 2100 if (dropTargetLayout != null) { 2101 // Move internally 2102 boolean hasMovedLayouts = (getParentCellLayoutForView(cell) != dropTargetLayout); 2103 boolean hasMovedIntoHotseat = mLauncher.isHotseatLayout(dropTargetLayout); 2104 long container = hasMovedIntoHotseat ? 2105 LauncherSettings.Favorites.CONTAINER_HOTSEAT : 2106 LauncherSettings.Favorites.CONTAINER_DESKTOP; 2107 int screen = (mTargetCell[0] < 0) ? 2108 mDragInfo.screen : indexOfChild(dropTargetLayout); 2109 int spanX = mDragInfo != null ? mDragInfo.spanX : 1; 2110 int spanY = mDragInfo != null ? mDragInfo.spanY : 1; 2111 // First we find the cell nearest to point at which the item is 2112 // dropped, without any consideration to whether there is an item there. 2113 mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], (int) 2114 mDragViewVisualCenter[1], spanX, spanY, dropTargetLayout, mTargetCell); 2115 // If the item being dropped is a shortcut and the nearest drop 2116 // cell also contains a shortcut, then create a folder with the two shortcuts. 2117 if (!mInScrollArea && createUserFolderIfNecessary(cell, container, 2118 dropTargetLayout, mTargetCell, false, d.dragView, null)) { 2119 return; 2120 } 2121 2122 if (addToExistingFolderIfNecessary(cell, dropTargetLayout, mTargetCell, d, false)) { 2123 return; 2124 } 2125 2126 // Aside from the special case where we're dropping a shortcut onto a shortcut, 2127 // we need to find the nearest cell location that is vacant 2128 mTargetCell = findNearestVacantArea((int) mDragViewVisualCenter[0], 2129 (int) mDragViewVisualCenter[1], mDragInfo.spanX, mDragInfo.spanY, cell, 2130 dropTargetLayout, mTargetCell); 2131 2132 if (mCurrentPage != screen && !hasMovedIntoHotseat) { 2133 snapScreen = screen; 2134 snapToPage(screen); 2135 } 2136 2137 if (mTargetCell[0] >= 0 && mTargetCell[1] >= 0) { 2138 if (hasMovedLayouts) { 2139 // Reparent the view 2140 getParentCellLayoutForView(cell).removeView(cell); 2141 addInScreen(cell, container, screen, mTargetCell[0], mTargetCell[1], 2142 mDragInfo.spanX, mDragInfo.spanY); 2143 } 2144 2145 // update the item's position after drop 2146 final ItemInfo info = (ItemInfo) cell.getTag(); 2147 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) cell.getLayoutParams(); 2148 dropTargetLayout.onMove(cell, mTargetCell[0], mTargetCell[1]); 2149 lp.cellX = mTargetCell[0]; 2150 lp.cellY = mTargetCell[1]; 2151 cell.setId(LauncherModel.getCellLayoutChildId(container, mDragInfo.screen, 2152 mTargetCell[0], mTargetCell[1], mDragInfo.spanX, mDragInfo.spanY)); 2153 2154 if (container != LauncherSettings.Favorites.CONTAINER_HOTSEAT && 2155 cell instanceof LauncherAppWidgetHostView) { 2156 final CellLayout cellLayout = dropTargetLayout; 2157 // We post this call so that the widget has a chance to be placed 2158 // in its final location 2159 2160 final LauncherAppWidgetHostView hostView = (LauncherAppWidgetHostView) cell; 2161 AppWidgetProviderInfo pinfo = hostView.getAppWidgetInfo(); 2162 if (pinfo.resizeMode != AppWidgetProviderInfo.RESIZE_NONE) { 2163 final Runnable resizeRunnable = new Runnable() { 2164 public void run() { 2165 DragLayer dragLayer = mLauncher.getDragLayer(); 2166 dragLayer.addResizeFrame(info, hostView, cellLayout); 2167 } 2168 }; 2169 post(new Runnable() { 2170 public void run() { 2171 if (!isPageMoving()) { 2172 resizeRunnable.run(); 2173 } else { 2174 mDelayedResizeRunnable = resizeRunnable; 2175 } 2176 } 2177 }); 2178 } 2179 } 2180 2181 LauncherModel.moveItemInDatabase(mLauncher, info, container, screen, lp.cellX, 2182 lp.cellY); 2183 } 2184 } 2185 2186 final CellLayout parent = (CellLayout) cell.getParent().getParent(); 2187 2188 // Prepare it to be animated into its new position 2189 // This must be called after the view has been re-parented 2190 final Runnable disableHardwareLayersRunnable = new Runnable() { 2191 @Override 2192 public void run() { 2193 mAnimatingViewIntoPlace = false; 2194 updateChildrenLayersEnabled(); 2195 } 2196 }; 2197 mAnimatingViewIntoPlace = true; 2198 if (d.dragView.hasDrawn()) { 2199 int duration = snapScreen < 0 ? -1 : ADJACENT_SCREEN_DROP_DURATION; 2200 setFinalScrollForPageChange(snapScreen); 2201 mLauncher.getDragLayer().animateViewIntoPosition(d.dragView, cell, duration, 2202 disableHardwareLayersRunnable); 2203 resetFinalScrollForPageChange(snapScreen); 2204 } else { 2205 cell.setVisibility(VISIBLE); 2206 } 2207 parent.onDropChild(cell); 2208 } 2209 } 2210 2211 public void setFinalScrollForPageChange(int screen) { 2212 if (screen >= 0) { 2213 mSavedScrollX = getScrollX(); 2214 CellLayout cl = (CellLayout) getChildAt(screen); 2215 mSavedTranslationX = cl.getTranslationX(); 2216 mSavedRotationY = cl.getRotationY(); 2217 final int newX = getChildOffset(screen) - getRelativeChildOffset(screen); 2218 setScrollX(newX); 2219 cl.setTranslationX(0f); 2220 cl.setRotationY(0f); 2221 } 2222 } 2223 2224 public void resetFinalScrollForPageChange(int screen) { 2225 if (screen >= 0) { 2226 CellLayout cl = (CellLayout) getChildAt(screen); 2227 setScrollX(mSavedScrollX); 2228 cl.setTranslationX(mSavedTranslationX); 2229 cl.setRotationY(mSavedRotationY); 2230 } 2231 } 2232 2233 public void getViewLocationRelativeToSelf(View v, int[] location) { 2234 getLocationInWindow(location); 2235 int x = location[0]; 2236 int y = location[1]; 2237 2238 v.getLocationInWindow(location); 2239 int vX = location[0]; 2240 int vY = location[1]; 2241 2242 location[0] = vX - x; 2243 location[1] = vY - y; 2244 } 2245 2246 public void onDragEnter(DragObject d) { 2247 if (mDragTargetLayout != null) { 2248 mDragTargetLayout.setIsDragOverlapping(false); 2249 mDragTargetLayout.onDragExit(); 2250 } 2251 mDragTargetLayout = getCurrentDropLayout(); 2252 mDragTargetLayout.setIsDragOverlapping(true); 2253 mDragTargetLayout.onDragEnter(); 2254 2255 // Because we don't have space in the Phone UI (the CellLayouts run to the edge) we 2256 // don't need to show the outlines 2257 if (LauncherApplication.isScreenLarge()) { 2258 showOutlines(); 2259 } 2260 } 2261 2262 private void doDragExit(DragObject d) { 2263 // Clean up folders 2264 cleanupFolderCreation(d); 2265 2266 // Reset the scroll area and previous drag target 2267 onResetScrollArea(); 2268 2269 if (mDragTargetLayout != null) { 2270 mDragTargetLayout.setIsDragOverlapping(false); 2271 mDragTargetLayout.onDragExit(); 2272 } 2273 mLastDragOverView = null; 2274 2275 if (!mIsPageMoving) { 2276 hideOutlines(); 2277 } 2278 } 2279 2280 public void onDragExit(DragObject d) { 2281 doDragExit(d); 2282 } 2283 2284 public DropTarget getDropTargetDelegate(DragObject d) { 2285 return null; 2286 } 2287 2288 /** 2289 * Tests to see if the drop will be accepted by Launcher, and if so, includes additional data 2290 * in the returned structure related to the widgets that match the drop (or a null list if it is 2291 * a shortcut drop). If the drop is not accepted then a null structure is returned. 2292 */ 2293 private Pair<Integer, List<WidgetMimeTypeHandlerData>> validateDrag(DragEvent event) { 2294 final LauncherModel model = mLauncher.getModel(); 2295 final ClipDescription desc = event.getClipDescription(); 2296 final int mimeTypeCount = desc.getMimeTypeCount(); 2297 for (int i = 0; i < mimeTypeCount; ++i) { 2298 final String mimeType = desc.getMimeType(i); 2299 if (mimeType.equals(InstallShortcutReceiver.SHORTCUT_MIMETYPE)) { 2300 return new Pair<Integer, List<WidgetMimeTypeHandlerData>>(i, null); 2301 } else { 2302 final List<WidgetMimeTypeHandlerData> widgets = 2303 model.resolveWidgetsForMimeType(mContext, mimeType); 2304 if (widgets.size() > 0) { 2305 return new Pair<Integer, List<WidgetMimeTypeHandlerData>>(i, widgets); 2306 } 2307 } 2308 } 2309 return null; 2310 } 2311 2312 /** 2313 * Global drag and drop handler 2314 */ 2315 @Override 2316 public boolean onDragEvent(DragEvent event) { 2317 final ClipDescription desc = event.getClipDescription(); 2318 final CellLayout layout = (CellLayout) getChildAt(mCurrentPage); 2319 final int[] pos = new int[2]; 2320 layout.getLocationOnScreen(pos); 2321 // We need to offset the drag coordinates to layout coordinate space 2322 final int x = (int) event.getX() - pos[0]; 2323 final int y = (int) event.getY() - pos[1]; 2324 2325 switch (event.getAction()) { 2326 case DragEvent.ACTION_DRAG_STARTED: { 2327 // Validate this drag 2328 Pair<Integer, List<WidgetMimeTypeHandlerData>> test = validateDrag(event); 2329 if (test != null) { 2330 boolean isShortcut = (test.second == null); 2331 if (isShortcut) { 2332 // Check if we have enough space on this screen to add a new shortcut 2333 if (!layout.findCellForSpan(pos, 1, 1)) { 2334 mLauncher.showOutOfSpaceMessage(); 2335 return false; 2336 } 2337 } 2338 } else { 2339 // Show error message if we couldn't accept any of the items 2340 Toast.makeText(mContext, mContext.getString(R.string.external_drop_widget_error), 2341 Toast.LENGTH_SHORT).show(); 2342 return false; 2343 } 2344 2345 // Create the drag outline 2346 // We need to add extra padding to the bitmap to make room for the glow effect 2347 final Canvas canvas = new Canvas(); 2348 final int bitmapPadding = HolographicOutlineHelper.MAX_OUTER_BLUR_RADIUS; 2349 mDragOutline = createExternalDragOutline(canvas, bitmapPadding); 2350 2351 // Show the current page outlines to indicate that we can accept this drop 2352 showOutlines(); 2353 layout.setIsDragOccuring(true); 2354 layout.onDragEnter(); 2355 layout.visualizeDropLocation(null, mDragOutline, x, y, 1, 1, null, null); 2356 2357 return true; 2358 } 2359 case DragEvent.ACTION_DRAG_LOCATION: 2360 // Visualize the drop location 2361 layout.visualizeDropLocation(null, mDragOutline, x, y, 1, 1, null, null); 2362 return true; 2363 case DragEvent.ACTION_DROP: { 2364 // Try and add any shortcuts 2365 final LauncherModel model = mLauncher.getModel(); 2366 final ClipData data = event.getClipData(); 2367 2368 // We assume that the mime types are ordered in descending importance of 2369 // representation. So we enumerate the list of mime types and alert the 2370 // user if any widgets can handle the drop. Only the most preferred 2371 // representation will be handled. 2372 pos[0] = x; 2373 pos[1] = y; 2374 Pair<Integer, List<WidgetMimeTypeHandlerData>> test = validateDrag(event); 2375 if (test != null) { 2376 final int index = test.first; 2377 final List<WidgetMimeTypeHandlerData> widgets = test.second; 2378 final boolean isShortcut = (widgets == null); 2379 final String mimeType = desc.getMimeType(index); 2380 if (isShortcut) { 2381 final Intent intent = data.getItemAt(index).getIntent(); 2382 Object info = model.infoFromShortcutIntent(mContext, intent, data.getIcon()); 2383 onDropExternal(new int[] { x, y }, info, layout, false); 2384 } else { 2385 if (widgets.size() == 1) { 2386 // If there is only one item, then go ahead and add and configure 2387 // that widget 2388 final AppWidgetProviderInfo widgetInfo = widgets.get(0).widgetInfo; 2389 final PendingAddWidgetInfo createInfo = 2390 new PendingAddWidgetInfo(widgetInfo, mimeType, data); 2391 mLauncher.addAppWidgetFromDrop(createInfo, 2392 LauncherSettings.Favorites.CONTAINER_DESKTOP, mCurrentPage, null, pos); 2393 } else { 2394 // Show the widget picker dialog if there is more than one widget 2395 // that can handle this data type 2396 final InstallWidgetReceiver.WidgetListAdapter adapter = 2397 new InstallWidgetReceiver.WidgetListAdapter(mLauncher, mimeType, 2398 data, widgets, layout, mCurrentPage, pos); 2399 final AlertDialog.Builder builder = 2400 new AlertDialog.Builder(mContext); 2401 builder.setAdapter(adapter, adapter); 2402 builder.setCancelable(true); 2403 builder.setTitle(mContext.getString( 2404 R.string.external_drop_widget_pick_title)); 2405 builder.setIcon(R.drawable.ic_no_applications); 2406 builder.show(); 2407 } 2408 } 2409 } 2410 return true; 2411 } 2412 case DragEvent.ACTION_DRAG_ENDED: 2413 // Hide the page outlines after the drop 2414 layout.setIsDragOccuring(false); 2415 layout.onDragExit(); 2416 hideOutlines(); 2417 return true; 2418 } 2419 return super.onDragEvent(event); 2420 } 2421 2422 /* 2423 * 2424 * Convert the 2D coordinate xy from the parent View's coordinate space to this CellLayout's 2425 * coordinate space. The argument xy is modified with the return result. 2426 * 2427 */ 2428 void mapPointFromSelfToChild(View v, float[] xy) { 2429 mapPointFromSelfToChild(v, xy, null); 2430 } 2431 2432 /* 2433 * 2434 * Convert the 2D coordinate xy from the parent View's coordinate space to this CellLayout's 2435 * coordinate space. The argument xy is modified with the return result. 2436 * 2437 * if cachedInverseMatrix is not null, this method will just use that matrix instead of 2438 * computing it itself; we use this to avoid redundant matrix inversions in 2439 * findMatchingPageForDragOver 2440 * 2441 */ 2442 void mapPointFromSelfToChild(View v, float[] xy, Matrix cachedInverseMatrix) { 2443 if (cachedInverseMatrix == null) { 2444 v.getMatrix().invert(mTempInverseMatrix); 2445 cachedInverseMatrix = mTempInverseMatrix; 2446 } 2447 xy[0] = xy[0] + mScrollX - v.getLeft(); 2448 xy[1] = xy[1] + mScrollY - v.getTop(); 2449 cachedInverseMatrix.mapPoints(xy); 2450 } 2451 2452 /* 2453 * Maps a point from the Workspace's coordinate system to another sibling view's. (Workspace 2454 * covers the full screen) 2455 */ 2456 void mapPointFromSelfToSibling(View v, float[] xy) { 2457 xy[0] = xy[0] - v.getLeft(); 2458 xy[1] = xy[1] - v.getTop(); 2459 } 2460 2461 /* 2462 * 2463 * Convert the 2D coordinate xy from this CellLayout's coordinate space to 2464 * the parent View's coordinate space. The argument xy is modified with the return result. 2465 * 2466 */ 2467 void mapPointFromChildToSelf(View v, float[] xy) { 2468 v.getMatrix().mapPoints(xy); 2469 xy[0] -= (mScrollX - v.getLeft()); 2470 xy[1] -= (mScrollY - v.getTop()); 2471 } 2472 2473 static private float squaredDistance(float[] point1, float[] point2) { 2474 float distanceX = point1[0] - point2[0]; 2475 float distanceY = point2[1] - point2[1]; 2476 return distanceX * distanceX + distanceY * distanceY; 2477 } 2478 2479 /* 2480 * 2481 * Returns true if the passed CellLayout cl overlaps with dragView 2482 * 2483 */ 2484 boolean overlaps(CellLayout cl, DragView dragView, 2485 int dragViewX, int dragViewY, Matrix cachedInverseMatrix) { 2486 // Transform the coordinates of the item being dragged to the CellLayout's coordinates 2487 final float[] draggedItemTopLeft = mTempDragCoordinates; 2488 draggedItemTopLeft[0] = dragViewX; 2489 draggedItemTopLeft[1] = dragViewY; 2490 final float[] draggedItemBottomRight = mTempDragBottomRightCoordinates; 2491 draggedItemBottomRight[0] = draggedItemTopLeft[0] + dragView.getDragRegionWidth(); 2492 draggedItemBottomRight[1] = draggedItemTopLeft[1] + dragView.getDragRegionHeight(); 2493 2494 // Transform the dragged item's top left coordinates 2495 // to the CellLayout's local coordinates 2496 mapPointFromSelfToChild(cl, draggedItemTopLeft, cachedInverseMatrix); 2497 float overlapRegionLeft = Math.max(0f, draggedItemTopLeft[0]); 2498 float overlapRegionTop = Math.max(0f, draggedItemTopLeft[1]); 2499 2500 if (overlapRegionLeft <= cl.getWidth() && overlapRegionTop >= 0) { 2501 // Transform the dragged item's bottom right coordinates 2502 // to the CellLayout's local coordinates 2503 mapPointFromSelfToChild(cl, draggedItemBottomRight, cachedInverseMatrix); 2504 float overlapRegionRight = Math.min(cl.getWidth(), draggedItemBottomRight[0]); 2505 float overlapRegionBottom = Math.min(cl.getHeight(), draggedItemBottomRight[1]); 2506 2507 if (overlapRegionRight >= 0 && overlapRegionBottom <= cl.getHeight()) { 2508 float overlap = (overlapRegionRight - overlapRegionLeft) * 2509 (overlapRegionBottom - overlapRegionTop); 2510 if (overlap > 0) { 2511 return true; 2512 } 2513 } 2514 } 2515 return false; 2516 } 2517 2518 /* 2519 * 2520 * This method returns the CellLayout that is currently being dragged to. In order to drag 2521 * to a CellLayout, either the touch point must be directly over the CellLayout, or as a second 2522 * strategy, we see if the dragView is overlapping any CellLayout and choose the closest one 2523 * 2524 * Return null if no CellLayout is currently being dragged over 2525 * 2526 */ 2527 private CellLayout findMatchingPageForDragOver( 2528 DragView dragView, float originX, float originY, boolean exact) { 2529 // We loop through all the screens (ie CellLayouts) and see which ones overlap 2530 // with the item being dragged and then choose the one that's closest to the touch point 2531 final int screenCount = getChildCount(); 2532 CellLayout bestMatchingScreen = null; 2533 float smallestDistSoFar = Float.MAX_VALUE; 2534 2535 for (int i = 0; i < screenCount; i++) { 2536 CellLayout cl = (CellLayout) getChildAt(i); 2537 2538 final float[] touchXy = {originX, originY}; 2539 // Transform the touch coordinates to the CellLayout's local coordinates 2540 // If the touch point is within the bounds of the cell layout, we can return immediately 2541 cl.getMatrix().invert(mTempInverseMatrix); 2542 mapPointFromSelfToChild(cl, touchXy, mTempInverseMatrix); 2543 2544 if (touchXy[0] >= 0 && touchXy[0] <= cl.getWidth() && 2545 touchXy[1] >= 0 && touchXy[1] <= cl.getHeight()) { 2546 return cl; 2547 } 2548 2549 if (!exact && overlaps(cl, dragView, (int) originX, (int) originY, mTempInverseMatrix)) { 2550 // Get the center of the cell layout in screen coordinates 2551 final float[] cellLayoutCenter = mTempCellLayoutCenterCoordinates; 2552 cellLayoutCenter[0] = cl.getWidth()/2; 2553 cellLayoutCenter[1] = cl.getHeight()/2; 2554 mapPointFromChildToSelf(cl, cellLayoutCenter); 2555 2556 touchXy[0] = originX; 2557 touchXy[1] = originY; 2558 2559 // Calculate the distance between the center of the CellLayout 2560 // and the touch point 2561 float dist = squaredDistance(touchXy, cellLayoutCenter); 2562 2563 if (dist < smallestDistSoFar) { 2564 smallestDistSoFar = dist; 2565 bestMatchingScreen = cl; 2566 } 2567 } 2568 } 2569 return bestMatchingScreen; 2570 } 2571 2572 // This is used to compute the visual center of the dragView. This point is then 2573 // used to visualize drop locations and determine where to drop an item. The idea is that 2574 // the visual center represents the user's interpretation of where the item is, and hence 2575 // is the appropriate point to use when determining drop location. 2576 private float[] getDragViewVisualCenter(int x, int y, int xOffset, int yOffset, 2577 DragView dragView, float[] recycle) { 2578 float res[]; 2579 if (recycle == null) { 2580 res = new float[2]; 2581 } else { 2582 res = recycle; 2583 } 2584 2585 // First off, the drag view has been shifted in a way that is not represented in the 2586 // x and y values or the x/yOffsets. Here we account for that shift. 2587 x += getResources().getDimensionPixelSize(R.dimen.dragViewOffsetX); 2588 y += getResources().getDimensionPixelSize(R.dimen.dragViewOffsetY); 2589 2590 // These represent the visual top and left of drag view if a dragRect was provided. 2591 // If a dragRect was not provided, then they correspond to the actual view left and 2592 // top, as the dragRect is in that case taken to be the entire dragView. 2593 // R.dimen.dragViewOffsetY. 2594 int left = x - xOffset; 2595 int top = y - yOffset; 2596 2597 // In order to find the visual center, we shift by half the dragRect 2598 res[0] = left + dragView.getDragRegion().width() / 2; 2599 res[1] = top + dragView.getDragRegion().height() / 2; 2600 2601 return res; 2602 } 2603 2604 private boolean isDragWidget(DragObject d) { 2605 return (d.dragInfo instanceof LauncherAppWidgetInfo || 2606 d.dragInfo instanceof PendingAddWidgetInfo); 2607 } 2608 private boolean isExternalDragWidget(DragObject d) { 2609 return d.dragSource != this && isDragWidget(d); 2610 } 2611 2612 public void onDragOver(DragObject d) { 2613 // Skip drag over events while we are dragging over side pages 2614 if (mInScrollArea) return; 2615 if (mIsSwitchingState) return; 2616 2617 Rect r = new Rect(); 2618 CellLayout layout = null; 2619 ItemInfo item = (ItemInfo) d.dragInfo; 2620 2621 // Ensure that we have proper spans for the item that we are dropping 2622 if (item.spanX < 0 || item.spanY < 0) throw new RuntimeException("Improper spans found"); 2623 mDragViewVisualCenter = getDragViewVisualCenter(d.x, d.y, d.xOffset, d.yOffset, 2624 d.dragView, mDragViewVisualCenter); 2625 2626 // Identify whether we have dragged over a side page 2627 if (isSmall()) { 2628 if (mLauncher.getHotseat() != null && !isExternalDragWidget(d)) { 2629 mLauncher.getHotseat().getHitRect(r); 2630 if (r.contains(d.x, d.y)) { 2631 layout = mLauncher.getHotseat().getLayout(); 2632 } 2633 } 2634 if (layout == null) { 2635 layout = findMatchingPageForDragOver(d.dragView, d.x, d.y, true); 2636 } 2637 if (layout != mDragTargetLayout) { 2638 // Cancel all intermediate folder states 2639 cleanupFolderCreation(d); 2640 2641 if (mDragTargetLayout != null) { 2642 mDragTargetLayout.setIsDragOverlapping(false); 2643 mDragTargetLayout.onDragExit(); 2644 } 2645 mDragTargetLayout = layout; 2646 if (mDragTargetLayout != null) { 2647 mDragTargetLayout.setIsDragOverlapping(true); 2648 mDragTargetLayout.onDragEnter(); 2649 } else { 2650 mLastDragOverView = null; 2651 } 2652 2653 boolean isInSpringLoadedMode = (mState == State.SPRING_LOADED); 2654 if (isInSpringLoadedMode) { 2655 if (mLauncher.isHotseatLayout(layout)) { 2656 mSpringLoadedDragController.cancel(); 2657 } else { 2658 mSpringLoadedDragController.setAlarm(mDragTargetLayout); 2659 } 2660 } 2661 } 2662 } else { 2663 // Test to see if we are over the hotseat otherwise just use the current page 2664 if (mLauncher.getHotseat() != null && !isDragWidget(d)) { 2665 mLauncher.getHotseat().getHitRect(r); 2666 if (r.contains(d.x, d.y)) { 2667 layout = mLauncher.getHotseat().getLayout(); 2668 } 2669 } 2670 if (layout == null) { 2671 layout = getCurrentDropLayout(); 2672 } 2673 if (layout != mDragTargetLayout) { 2674 if (mDragTargetLayout != null) { 2675 mDragTargetLayout.setIsDragOverlapping(false); 2676 mDragTargetLayout.onDragExit(); 2677 } 2678 mDragTargetLayout = layout; 2679 mDragTargetLayout.setIsDragOverlapping(true); 2680 mDragTargetLayout.onDragEnter(); 2681 } 2682 } 2683 2684 // Handle the drag over 2685 if (mDragTargetLayout != null) { 2686 final View child = (mDragInfo == null) ? null : mDragInfo.cell; 2687 2688 // We want the point to be mapped to the dragTarget. 2689 if (mLauncher.isHotseatLayout(mDragTargetLayout)) { 2690 mapPointFromSelfToSibling(mLauncher.getHotseat(), mDragViewVisualCenter); 2691 } else { 2692 mapPointFromSelfToChild(mDragTargetLayout, mDragViewVisualCenter, null); 2693 } 2694 ItemInfo info = (ItemInfo) d.dragInfo; 2695 2696 mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], 2697 (int) mDragViewVisualCenter[1], 1, 1, mDragTargetLayout, mTargetCell); 2698 final View dragOverView = mDragTargetLayout.getChildAt(mTargetCell[0], 2699 mTargetCell[1]); 2700 2701 boolean userFolderPending = willCreateUserFolder(info, mDragTargetLayout, 2702 mTargetCell, false); 2703 boolean isOverFolder = dragOverView instanceof FolderIcon; 2704 if (dragOverView != mLastDragOverView) { 2705 cancelFolderCreation(); 2706 if (mLastDragOverView != null && mLastDragOverView instanceof FolderIcon) { 2707 ((FolderIcon) mLastDragOverView).onDragExit(d.dragInfo); 2708 } 2709 } 2710 2711 if (userFolderPending && dragOverView != mLastDragOverView) { 2712 mFolderCreationAlarm.setOnAlarmListener(new 2713 FolderCreationAlarmListener(mDragTargetLayout, mTargetCell[0], mTargetCell[1])); 2714 mFolderCreationAlarm.setAlarm(FOLDER_CREATION_TIMEOUT); 2715 } 2716 2717 if (dragOverView != mLastDragOverView && isOverFolder) { 2718 ((FolderIcon) dragOverView).onDragEnter(d.dragInfo); 2719 if (mDragTargetLayout != null) { 2720 mDragTargetLayout.clearDragOutlines(); 2721 } 2722 } 2723 mLastDragOverView = dragOverView; 2724 2725 if (!mCreateUserFolderOnDrop && !isOverFolder) { 2726 mDragTargetLayout.visualizeDropLocation(child, mDragOutline, 2727 (int) mDragViewVisualCenter[0], (int) mDragViewVisualCenter[1], 2728 item.spanX, item.spanY, d.dragView.getDragVisualizeOffset(), 2729 d.dragView.getDragRegion()); 2730 } 2731 } 2732 } 2733 2734 private void cleanupFolderCreation(DragObject d) { 2735 if (mDragFolderRingAnimator != null && mCreateUserFolderOnDrop) { 2736 mDragFolderRingAnimator.animateToNaturalState(); 2737 } 2738 if (mLastDragOverView != null && mLastDragOverView instanceof FolderIcon) { 2739 if (d != null) { 2740 ((FolderIcon) mLastDragOverView).onDragExit(d.dragInfo); 2741 } 2742 } 2743 mFolderCreationAlarm.cancelAlarm(); 2744 } 2745 2746 private void cancelFolderCreation() { 2747 if (mDragFolderRingAnimator != null && mCreateUserFolderOnDrop) { 2748 mDragFolderRingAnimator.animateToNaturalState(); 2749 } 2750 mCreateUserFolderOnDrop = false; 2751 mFolderCreationAlarm.cancelAlarm(); 2752 } 2753 2754 class FolderCreationAlarmListener implements OnAlarmListener { 2755 CellLayout layout; 2756 int cellX; 2757 int cellY; 2758 2759 public FolderCreationAlarmListener(CellLayout layout, int cellX, int cellY) { 2760 this.layout = layout; 2761 this.cellX = cellX; 2762 this.cellY = cellY; 2763 } 2764 2765 public void onAlarm(Alarm alarm) { 2766 if (mDragFolderRingAnimator == null) { 2767 mDragFolderRingAnimator = new FolderRingAnimator(mLauncher, null); 2768 } 2769 mDragFolderRingAnimator.setCell(cellX, cellY); 2770 mDragFolderRingAnimator.setCellLayout(layout); 2771 mDragFolderRingAnimator.animateToAcceptState(); 2772 layout.showFolderAccept(mDragFolderRingAnimator); 2773 layout.clearDragOutlines(); 2774 mCreateUserFolderOnDrop = true; 2775 } 2776 } 2777 2778 @Override 2779 public void getHitRect(Rect outRect) { 2780 // We want the workspace to have the whole area of the display (it will find the correct 2781 // cell layout to drop to in the existing drag/drop logic. 2782 outRect.set(0, 0, mDisplayWidth, mDisplayHeight); 2783 } 2784 2785 /** 2786 * Add the item specified by dragInfo to the given layout. 2787 * @return true if successful 2788 */ 2789 public boolean addExternalItemToScreen(ItemInfo dragInfo, CellLayout layout) { 2790 if (layout.findCellForSpan(mTempEstimate, dragInfo.spanX, dragInfo.spanY)) { 2791 onDropExternal(dragInfo.dropPos, (ItemInfo) dragInfo, (CellLayout) layout, false); 2792 return true; 2793 } 2794 mLauncher.showOutOfSpaceMessage(); 2795 return false; 2796 } 2797 2798 private void onDropExternal(int[] touchXY, Object dragInfo, 2799 CellLayout cellLayout, boolean insertAtFirst) { 2800 onDropExternal(touchXY, dragInfo, cellLayout, insertAtFirst, null); 2801 } 2802 2803 /** 2804 * Drop an item that didn't originate on one of the workspace screens. 2805 * It may have come from Launcher (e.g. from all apps or customize), or it may have 2806 * come from another app altogether. 2807 * 2808 * NOTE: This can also be called when we are outside of a drag event, when we want 2809 * to add an item to one of the workspace screens. 2810 */ 2811 private void onDropExternal(final int[] touchXY, final Object dragInfo, 2812 final CellLayout cellLayout, boolean insertAtFirst, DragObject d) { 2813 final Runnable exitSpringLoadedRunnable = new Runnable() { 2814 @Override 2815 public void run() { 2816 mLauncher.exitSpringLoadedDragModeDelayed(true, false); 2817 } 2818 }; 2819 2820 ItemInfo info = (ItemInfo) dragInfo; 2821 int spanX = info.spanX; 2822 int spanY = info.spanY; 2823 if (mDragInfo != null) { 2824 spanX = mDragInfo.spanX; 2825 spanY = mDragInfo.spanY; 2826 } 2827 2828 final long container = mLauncher.isHotseatLayout(cellLayout) ? 2829 LauncherSettings.Favorites.CONTAINER_HOTSEAT : 2830 LauncherSettings.Favorites.CONTAINER_DESKTOP; 2831 final int screen = indexOfChild(cellLayout); 2832 if (!mLauncher.isHotseatLayout(cellLayout) && screen != mCurrentPage 2833 && mState != State.SPRING_LOADED) { 2834 snapToPage(screen); 2835 } 2836 2837 if (info instanceof PendingAddItemInfo) { 2838 final PendingAddItemInfo pendingInfo = (PendingAddItemInfo) dragInfo; 2839 2840 boolean findNearestVacantCell = true; 2841 if (pendingInfo.itemType == LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT) { 2842 mTargetCell = findNearestArea((int) touchXY[0], (int) touchXY[1], spanX, spanY, 2843 cellLayout, mTargetCell); 2844 if (willCreateUserFolder((ItemInfo) d.dragInfo, mDragTargetLayout, mTargetCell, 2845 true) || willAddToExistingUserFolder((ItemInfo) d.dragInfo, 2846 mDragTargetLayout, mTargetCell)) { 2847 findNearestVacantCell = false; 2848 } 2849 } 2850 if (findNearestVacantCell) { 2851 mTargetCell = findNearestVacantArea(touchXY[0], touchXY[1], spanX, spanY, null, 2852 cellLayout, mTargetCell); 2853 } 2854 2855 Runnable onAnimationCompleteRunnable = new Runnable() { 2856 @Override 2857 public void run() { 2858 // When dragging and dropping from customization tray, we deal with creating 2859 // widgets/shortcuts/folders in a slightly different way 2860 switch (pendingInfo.itemType) { 2861 case LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET: 2862 mLauncher.addAppWidgetFromDrop((PendingAddWidgetInfo) pendingInfo, 2863 container, screen, mTargetCell, null); 2864 break; 2865 case LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT: 2866 mLauncher.processShortcutFromDrop(pendingInfo.componentName, 2867 container, screen, mTargetCell, null); 2868 break; 2869 default: 2870 throw new IllegalStateException("Unknown item type: " + 2871 pendingInfo.itemType); 2872 } 2873 cellLayout.onDragExit(); 2874 } 2875 }; 2876 2877 // Now we animate the dragView, (ie. the widget or shortcut preview) into its final 2878 // location and size on the home screen. 2879 int loc[] = new int[2]; 2880 cellLayout.cellToPoint(mTargetCell[0], mTargetCell[1], loc); 2881 2882 RectF r = new RectF(); 2883 cellLayout.cellToRect(mTargetCell[0], mTargetCell[1], spanX, spanY, r); 2884 setFinalTransitionTransform(cellLayout); 2885 float cellLayoutScale = 2886 mLauncher.getDragLayer().getDescendantCoordRelativeToSelf(cellLayout, loc); 2887 resetTransitionTransform(cellLayout); 2888 2889 float dragViewScale = r.width() / d.dragView.getMeasuredWidth(); 2890 // The animation will scale the dragView about its center, so we need to center about 2891 // the final location. 2892 loc[0] -= (d.dragView.getMeasuredWidth() - cellLayoutScale * r.width()) / 2; 2893 loc[1] -= (d.dragView.getMeasuredHeight() - cellLayoutScale * r.height()) / 2; 2894 2895 mLauncher.getDragLayer().animateViewIntoPosition(d.dragView, loc, 2896 dragViewScale * cellLayoutScale, onAnimationCompleteRunnable); 2897 } else { 2898 // This is for other drag/drop cases, like dragging from All Apps 2899 View view = null; 2900 2901 switch (info.itemType) { 2902 case LauncherSettings.Favorites.ITEM_TYPE_APPLICATION: 2903 case LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT: 2904 if (info.container == NO_ID && info instanceof ApplicationInfo) { 2905 // Came from all apps -- make a copy 2906 info = new ShortcutInfo((ApplicationInfo) info); 2907 } 2908 view = mLauncher.createShortcut(R.layout.application, cellLayout, 2909 (ShortcutInfo) info); 2910 break; 2911 case LauncherSettings.Favorites.ITEM_TYPE_FOLDER: 2912 view = FolderIcon.fromXml(R.layout.folder_icon, mLauncher, cellLayout, 2913 (FolderInfo) info, mIconCache); 2914 break; 2915 default: 2916 throw new IllegalStateException("Unknown item type: " + info.itemType); 2917 } 2918 2919 // First we find the cell nearest to point at which the item is 2920 // dropped, without any consideration to whether there is an item there. 2921 if (touchXY != null) { 2922 mTargetCell = findNearestArea((int) touchXY[0], (int) touchXY[1], spanX, spanY, 2923 cellLayout, mTargetCell); 2924 d.postAnimationRunnable = exitSpringLoadedRunnable; 2925 if (createUserFolderIfNecessary(view, container, cellLayout, mTargetCell, true, 2926 d.dragView, d.postAnimationRunnable)) { 2927 return; 2928 } 2929 if (addToExistingFolderIfNecessary(view, cellLayout, mTargetCell, d, true)) { 2930 return; 2931 } 2932 } 2933 2934 if (touchXY != null) { 2935 // when dragging and dropping, just find the closest free spot 2936 mTargetCell = findNearestVacantArea(touchXY[0], touchXY[1], 1, 1, null, 2937 cellLayout, mTargetCell); 2938 } else { 2939 cellLayout.findCellForSpan(mTargetCell, 1, 1); 2940 } 2941 addInScreen(view, container, screen, mTargetCell[0], mTargetCell[1], info.spanX, 2942 info.spanY, insertAtFirst); 2943 cellLayout.onDropChild(view); 2944 cellLayout.animateDrop(); 2945 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) view.getLayoutParams(); 2946 cellLayout.getChildrenLayout().measureChild(view); 2947 2948 LauncherModel.addOrMoveItemInDatabase(mLauncher, info, container, screen, 2949 lp.cellX, lp.cellY); 2950 2951 if (d.dragView != null) { 2952 // We wrap the animation call in the temporary set and reset of the current 2953 // cellLayout to its final transform -- this means we animate the drag view to 2954 // the correct final location. 2955 setFinalTransitionTransform(cellLayout); 2956 mLauncher.getDragLayer().animateViewIntoPosition(d.dragView, view, 2957 exitSpringLoadedRunnable); 2958 resetTransitionTransform(cellLayout); 2959 } 2960 } 2961 } 2962 2963 public void setFinalTransitionTransform(CellLayout layout) { 2964 if (isSwitchingState()) { 2965 int index = indexOfChild(layout); 2966 mCurrentScaleX = layout.getScaleX(); 2967 mCurrentScaleY = layout.getScaleY(); 2968 mCurrentTranslationX = layout.getTranslationX(); 2969 mCurrentTranslationY = layout.getTranslationY(); 2970 mCurrentRotationY = layout.getRotationY(); 2971 layout.setScaleX(mNewScaleXs[index]); 2972 layout.setScaleY(mNewScaleYs[index]); 2973 layout.setTranslationX(mNewTranslationXs[index]); 2974 layout.setTranslationY(mNewTranslationYs[index]); 2975 layout.setRotationY(mNewRotationYs[index]); 2976 } 2977 } 2978 public void resetTransitionTransform(CellLayout layout) { 2979 if (isSwitchingState()) { 2980 mCurrentScaleX = layout.getScaleX(); 2981 mCurrentScaleY = layout.getScaleY(); 2982 mCurrentTranslationX = layout.getTranslationX(); 2983 mCurrentTranslationY = layout.getTranslationY(); 2984 mCurrentRotationY = layout.getRotationY(); 2985 layout.setScaleX(mCurrentScaleX); 2986 layout.setScaleY(mCurrentScaleY); 2987 layout.setTranslationX(mCurrentTranslationX); 2988 layout.setTranslationY(mCurrentTranslationY); 2989 layout.setRotationY(mCurrentRotationY); 2990 } 2991 } 2992 2993 /** 2994 * Return the current {@link CellLayout}, correctly picking the destination 2995 * screen while a scroll is in progress. 2996 */ 2997 public CellLayout getCurrentDropLayout() { 2998 return (CellLayout) getChildAt(mNextPage == INVALID_PAGE ? mCurrentPage : mNextPage); 2999 } 3000 3001 /** 3002 * Return the current CellInfo describing our current drag; this method exists 3003 * so that Launcher can sync this object with the correct info when the activity is created/ 3004 * destroyed 3005 * 3006 */ 3007 public CellLayout.CellInfo getDragInfo() { 3008 return mDragInfo; 3009 } 3010 3011 /** 3012 * Calculate the nearest cell where the given object would be dropped. 3013 * 3014 * pixelX and pixelY should be in the coordinate system of layout 3015 */ 3016 private int[] findNearestVacantArea(int pixelX, int pixelY, 3017 int spanX, int spanY, View ignoreView, CellLayout layout, int[] recycle) { 3018 return layout.findNearestVacantArea( 3019 pixelX, pixelY, spanX, spanY, ignoreView, recycle); 3020 } 3021 3022 /** 3023 * Calculate the nearest cell where the given object would be dropped. 3024 * 3025 * pixelX and pixelY should be in the coordinate system of layout 3026 */ 3027 private int[] findNearestArea(int pixelX, int pixelY, 3028 int spanX, int spanY, CellLayout layout, int[] recycle) { 3029 return layout.findNearestArea( 3030 pixelX, pixelY, spanX, spanY, recycle); 3031 } 3032 3033 void setup(DragController dragController) { 3034 mSpringLoadedDragController = new SpringLoadedDragController(mLauncher); 3035 mDragController = dragController; 3036 3037 // hardware layers on children are enabled on startup, but should be disabled until 3038 // needed 3039 updateChildrenLayersEnabled(); 3040 setWallpaperDimension(); 3041 } 3042 3043 /** 3044 * Called at the end of a drag which originated on the workspace. 3045 */ 3046 public void onDropCompleted(View target, DragObject d, boolean success) { 3047 if (success) { 3048 if (target != this) { 3049 if (mDragInfo != null) { 3050 getParentCellLayoutForView(mDragInfo.cell).removeView(mDragInfo.cell); 3051 if (mDragInfo.cell instanceof DropTarget) { 3052 mDragController.removeDropTarget((DropTarget) mDragInfo.cell); 3053 } 3054 } 3055 } 3056 } else if (mDragInfo != null) { 3057 // NOTE: When 'success' is true, onDragExit is called by the DragController before 3058 // calling onDropCompleted(). We call it ourselves here, but maybe this should be 3059 // moved into DragController.cancelDrag(). 3060 doDragExit(null); 3061 CellLayout cellLayout; 3062 if (mLauncher.isHotseatLayout(target)) { 3063 cellLayout = mLauncher.getHotseat().getLayout(); 3064 } else { 3065 cellLayout = (CellLayout) getChildAt(mDragInfo.screen); 3066 } 3067 cellLayout.onDropChild(mDragInfo.cell); 3068 } 3069 if (d.cancelled && mDragInfo.cell != null) { 3070 mDragInfo.cell.setVisibility(VISIBLE); 3071 } 3072 mDragOutline = null; 3073 mDragInfo = null; 3074 } 3075 3076 public boolean isDropEnabled() { 3077 return true; 3078 } 3079 3080 @Override 3081 protected void onRestoreInstanceState(Parcelable state) { 3082 super.onRestoreInstanceState(state); 3083 Launcher.setScreen(mCurrentPage); 3084 } 3085 3086 @Override 3087 public void scrollLeft() { 3088 if (!isSmall() && !mIsSwitchingState) { 3089 super.scrollLeft(); 3090 } 3091 Folder openFolder = getOpenFolder(); 3092 if (openFolder != null) { 3093 openFolder.completeDragExit(); 3094 } 3095 } 3096 3097 @Override 3098 public void scrollRight() { 3099 if (!isSmall() && !mIsSwitchingState) { 3100 super.scrollRight(); 3101 } 3102 Folder openFolder = getOpenFolder(); 3103 if (openFolder != null) { 3104 openFolder.completeDragExit(); 3105 } 3106 } 3107 3108 @Override 3109 public boolean onEnterScrollArea(int x, int y, int direction) { 3110 // Ignore the scroll area if we are dragging over the hot seat 3111 if (mLauncher.getHotseat() != null) { 3112 Rect r = new Rect(); 3113 mLauncher.getHotseat().getHitRect(r); 3114 if (r.contains(x, y)) { 3115 return false; 3116 } 3117 } 3118 3119 boolean result = false; 3120 if (!isSmall() && !mIsSwitchingState) { 3121 mInScrollArea = true; 3122 3123 final int page = mCurrentPage + (direction == DragController.SCROLL_LEFT ? -1 : 1); 3124 final CellLayout layout = (CellLayout) getChildAt(page); 3125 cancelFolderCreation(); 3126 3127 if (layout != null) { 3128 // Exit the current layout and mark the overlapping layout 3129 if (mDragTargetLayout != null) { 3130 mDragTargetLayout.setIsDragOverlapping(false); 3131 mDragTargetLayout.onDragExit(); 3132 } 3133 mDragTargetLayout = layout; 3134 mDragTargetLayout.setIsDragOverlapping(true); 3135 3136 // Workspace is responsible for drawing the edge glow on adjacent pages, 3137 // so we need to redraw the workspace when this may have changed. 3138 invalidate(); 3139 result = true; 3140 } 3141 } 3142 return result; 3143 } 3144 3145 @Override 3146 public boolean onExitScrollArea() { 3147 boolean result = false; 3148 if (mInScrollArea) { 3149 if (mDragTargetLayout != null) { 3150 // Unmark the overlapping layout and re-enter the current layout 3151 mDragTargetLayout.setIsDragOverlapping(false); 3152 mDragTargetLayout = getCurrentDropLayout(); 3153 mDragTargetLayout.onDragEnter(); 3154 3155 // Workspace is responsible for drawing the edge glow on adjacent pages, 3156 // so we need to redraw the workspace when this may have changed. 3157 invalidate(); 3158 result = true; 3159 } 3160 mInScrollArea = false; 3161 } 3162 return result; 3163 } 3164 3165 private void onResetScrollArea() { 3166 if (mDragTargetLayout != null) { 3167 // Unmark the overlapping layout 3168 mDragTargetLayout.setIsDragOverlapping(false); 3169 3170 // Workspace is responsible for drawing the edge glow on adjacent pages, 3171 // so we need to redraw the workspace when this may have changed. 3172 invalidate(); 3173 } 3174 mInScrollArea = false; 3175 } 3176 3177 /** 3178 * Returns a specific CellLayout 3179 */ 3180 CellLayout getParentCellLayoutForView(View v) { 3181 ArrayList<CellLayout> layouts = getWorkspaceAndHotseatCellLayouts(); 3182 for (CellLayout layout : layouts) { 3183 if (layout.getChildrenLayout().indexOfChild(v) > -1) { 3184 return layout; 3185 } 3186 } 3187 return null; 3188 } 3189 3190 /** 3191 * Returns a list of all the CellLayouts in the workspace. 3192 */ 3193 ArrayList<CellLayout> getWorkspaceAndHotseatCellLayouts() { 3194 ArrayList<CellLayout> layouts = new ArrayList<CellLayout>(); 3195 int screenCount = getChildCount(); 3196 for (int screen = 0; screen < screenCount; screen++) { 3197 layouts.add(((CellLayout) getChildAt(screen))); 3198 } 3199 if (mLauncher.getHotseat() != null) { 3200 layouts.add(mLauncher.getHotseat().getLayout()); 3201 } 3202 return layouts; 3203 } 3204 3205 /** 3206 * We should only use this to search for specific children. Do not use this method to modify 3207 * CellLayoutChildren directly. 3208 */ 3209 ArrayList<CellLayoutChildren> getWorkspaceAndHotseatCellLayoutChildren() { 3210 ArrayList<CellLayoutChildren> childrenLayouts = new ArrayList<CellLayoutChildren>(); 3211 int screenCount = getChildCount(); 3212 for (int screen = 0; screen < screenCount; screen++) { 3213 childrenLayouts.add(((CellLayout) getChildAt(screen)).getChildrenLayout()); 3214 } 3215 if (mLauncher.getHotseat() != null) { 3216 childrenLayouts.add(mLauncher.getHotseat().getLayout().getChildrenLayout()); 3217 } 3218 return childrenLayouts; 3219 } 3220 3221 public Folder getFolderForTag(Object tag) { 3222 ArrayList<CellLayoutChildren> childrenLayouts = getWorkspaceAndHotseatCellLayoutChildren(); 3223 for (CellLayoutChildren layout: childrenLayouts) { 3224 int count = layout.getChildCount(); 3225 for (int i = 0; i < count; i++) { 3226 View child = layout.getChildAt(i); 3227 if (child instanceof Folder) { 3228 Folder f = (Folder) child; 3229 if (f.getInfo() == tag && f.getInfo().opened) { 3230 return f; 3231 } 3232 } 3233 } 3234 } 3235 return null; 3236 } 3237 3238 public View getViewForTag(Object tag) { 3239 ArrayList<CellLayoutChildren> childrenLayouts = getWorkspaceAndHotseatCellLayoutChildren(); 3240 for (CellLayoutChildren layout: childrenLayouts) { 3241 int count = layout.getChildCount(); 3242 for (int i = 0; i < count; i++) { 3243 View child = layout.getChildAt(i); 3244 if (child.getTag() == tag) { 3245 return child; 3246 } 3247 } 3248 } 3249 return null; 3250 } 3251 3252 void clearDropTargets() { 3253 ArrayList<CellLayoutChildren> childrenLayouts = getWorkspaceAndHotseatCellLayoutChildren(); 3254 for (CellLayoutChildren layout: childrenLayouts) { 3255 int childCount = layout.getChildCount(); 3256 for (int j = 0; j < childCount; j++) { 3257 View v = layout.getChildAt(j); 3258 if (v instanceof DropTarget) { 3259 mDragController.removeDropTarget((DropTarget) v); 3260 } 3261 } 3262 } 3263 } 3264 3265 void removeItems(final ArrayList<ApplicationInfo> apps) { 3266 final AppWidgetManager widgets = AppWidgetManager.getInstance(getContext()); 3267 3268 final HashSet<String> packageNames = new HashSet<String>(); 3269 final int appCount = apps.size(); 3270 for (int i = 0; i < appCount; i++) { 3271 packageNames.add(apps.get(i).componentName.getPackageName()); 3272 } 3273 3274 ArrayList<CellLayout> cellLayouts = getWorkspaceAndHotseatCellLayouts(); 3275 for (final CellLayout layoutParent: cellLayouts) { 3276 final ViewGroup layout = layoutParent.getChildrenLayout(); 3277 3278 // Avoid ANRs by treating each screen separately 3279 post(new Runnable() { 3280 public void run() { 3281 final ArrayList<View> childrenToRemove = new ArrayList<View>(); 3282 childrenToRemove.clear(); 3283 3284 int childCount = layout.getChildCount(); 3285 for (int j = 0; j < childCount; j++) { 3286 final View view = layout.getChildAt(j); 3287 Object tag = view.getTag(); 3288 3289 if (tag instanceof ShortcutInfo) { 3290 final ShortcutInfo info = (ShortcutInfo) tag; 3291 final Intent intent = info.intent; 3292 final ComponentName name = intent.getComponent(); 3293 3294 if (Intent.ACTION_MAIN.equals(intent.getAction()) && name != null) { 3295 for (String packageName: packageNames) { 3296 if (packageName.equals(name.getPackageName())) { 3297 LauncherModel.deleteItemFromDatabase(mLauncher, info); 3298 childrenToRemove.add(view); 3299 } 3300 } 3301 } 3302 } else if (tag instanceof FolderInfo) { 3303 final FolderInfo info = (FolderInfo) tag; 3304 final ArrayList<ShortcutInfo> contents = info.contents; 3305 final int contentsCount = contents.size(); 3306 final ArrayList<ShortcutInfo> appsToRemoveFromFolder = 3307 new ArrayList<ShortcutInfo>(); 3308 3309 for (int k = 0; k < contentsCount; k++) { 3310 final ShortcutInfo appInfo = contents.get(k); 3311 final Intent intent = appInfo.intent; 3312 final ComponentName name = intent.getComponent(); 3313 3314 if (Intent.ACTION_MAIN.equals(intent.getAction()) && name != null) { 3315 for (String packageName: packageNames) { 3316 if (packageName.equals(name.getPackageName())) { 3317 appsToRemoveFromFolder.add(appInfo); 3318 } 3319 } 3320 } 3321 } 3322 for (ShortcutInfo item: appsToRemoveFromFolder) { 3323 info.remove(item); 3324 LauncherModel.deleteItemFromDatabase(mLauncher, item); 3325 } 3326 } else if (tag instanceof LauncherAppWidgetInfo) { 3327 final LauncherAppWidgetInfo info = (LauncherAppWidgetInfo) tag; 3328 final AppWidgetProviderInfo provider = 3329 widgets.getAppWidgetInfo(info.appWidgetId); 3330 if (provider != null) { 3331 for (String packageName: packageNames) { 3332 if (packageName.equals(provider.provider.getPackageName())) { 3333 LauncherModel.deleteItemFromDatabase(mLauncher, info); 3334 childrenToRemove.add(view); 3335 } 3336 } 3337 } 3338 } 3339 } 3340 3341 childCount = childrenToRemove.size(); 3342 for (int j = 0; j < childCount; j++) { 3343 View child = childrenToRemove.get(j); 3344 // Note: We can not remove the view directly from CellLayoutChildren as this 3345 // does not re-mark the spaces as unoccupied. 3346 layoutParent.removeViewInLayout(child); 3347 if (child instanceof DropTarget) { 3348 mDragController.removeDropTarget((DropTarget)child); 3349 } 3350 } 3351 3352 if (childCount > 0) { 3353 layout.requestLayout(); 3354 layout.invalidate(); 3355 } 3356 } 3357 }); 3358 } 3359 } 3360 3361 void updateShortcuts(ArrayList<ApplicationInfo> apps) { 3362 ArrayList<CellLayoutChildren> childrenLayouts = getWorkspaceAndHotseatCellLayoutChildren(); 3363 for (CellLayoutChildren layout: childrenLayouts) { 3364 int childCount = layout.getChildCount(); 3365 for (int j = 0; j < childCount; j++) { 3366 final View view = layout.getChildAt(j); 3367 Object tag = view.getTag(); 3368 if (tag instanceof ShortcutInfo) { 3369 ShortcutInfo info = (ShortcutInfo)tag; 3370 // We need to check for ACTION_MAIN otherwise getComponent() might 3371 // return null for some shortcuts (for instance, for shortcuts to 3372 // web pages.) 3373 final Intent intent = info.intent; 3374 final ComponentName name = intent.getComponent(); 3375 if (info.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPLICATION && 3376 Intent.ACTION_MAIN.equals(intent.getAction()) && name != null) { 3377 final int appCount = apps.size(); 3378 for (int k = 0; k < appCount; k++) { 3379 ApplicationInfo app = apps.get(k); 3380 if (app.componentName.equals(name)) { 3381 info.setIcon(mIconCache.getIcon(info.intent)); 3382 ((TextView)view).setCompoundDrawablesWithIntrinsicBounds(null, 3383 new FastBitmapDrawable(info.getIcon(mIconCache)), 3384 null, null); 3385 } 3386 } 3387 } 3388 } 3389 } 3390 } 3391 } 3392 3393 void moveToDefaultScreen(boolean animate) { 3394 if (!isSmall()) { 3395 if (animate) { 3396 snapToPage(mDefaultPage); 3397 } else { 3398 setCurrentPage(mDefaultPage); 3399 } 3400 } 3401 getChildAt(mDefaultPage).requestFocus(); 3402 } 3403 3404 @Override 3405 public void syncPages() { 3406 } 3407 3408 @Override 3409 public void syncPageItems(int page, boolean immediate) { 3410 } 3411 3412 @Override 3413 protected String getCurrentPageDescription() { 3414 int page = (mNextPage != INVALID_PAGE) ? mNextPage : mCurrentPage; 3415 return String.format(mContext.getString(R.string.workspace_scroll_format), 3416 page + 1, getChildCount()); 3417 } 3418 3419 public void getLocationInDragLayer(int[] loc) { 3420 mLauncher.getDragLayer().getLocationInDragLayer(this, loc); 3421 } 3422 3423 void showDockDivider(boolean immediately) { 3424 final ViewGroup parent = (ViewGroup) getParent(); 3425 final View qsbDivider = (ImageView) (parent.findViewById(R.id.qsb_divider)); 3426 final View dockDivider = (ImageView) (parent.findViewById(R.id.dock_divider)); 3427 if (qsbDivider != null && dockDivider != null) { 3428 qsbDivider.setVisibility(View.VISIBLE); 3429 dockDivider.setVisibility(View.VISIBLE); 3430 if (mDividerAnimator != null) { 3431 mDividerAnimator.cancel(); 3432 mDividerAnimator = null; 3433 } 3434 if (immediately) { 3435 qsbDivider.setAlpha(1f); 3436 dockDivider.setAlpha(1f); 3437 } else { 3438 mDividerAnimator = new AnimatorSet(); 3439 mDividerAnimator.playTogether(ObjectAnimator.ofFloat(qsbDivider, "alpha", 1f), 3440 ObjectAnimator.ofFloat(dockDivider, "alpha", 1f)); 3441 mDividerAnimator.setDuration(sScrollIndicatorFadeInDuration); 3442 mDividerAnimator.start(); 3443 } 3444 } 3445 } 3446 3447 void hideDockDivider(boolean immediately) { 3448 final ViewGroup parent = (ViewGroup) getParent(); 3449 final View qsbDivider = (ImageView) (parent.findViewById(R.id.qsb_divider)); 3450 final View dockDivider = (ImageView) (parent.findViewById(R.id.dock_divider)); 3451 if (qsbDivider != null && dockDivider != null) { 3452 if (mDividerAnimator != null) { 3453 mDividerAnimator.cancel(); 3454 mDividerAnimator = null; 3455 } 3456 if (immediately) { 3457 qsbDivider.setVisibility(View.GONE); 3458 dockDivider.setVisibility(View.GONE); 3459 qsbDivider.setAlpha(0f); 3460 dockDivider.setAlpha(0f); 3461 } else { 3462 mDividerAnimator = new AnimatorSet(); 3463 mDividerAnimator.playTogether(ObjectAnimator.ofFloat(qsbDivider, "alpha", 0f), 3464 ObjectAnimator.ofFloat(dockDivider, "alpha", 0f)); 3465 mDividerAnimator.addListener(new AnimatorListenerAdapter() { 3466 private boolean cancelled = false; 3467 @Override 3468 public void onAnimationCancel(android.animation.Animator animation) { 3469 cancelled = true; 3470 } 3471 @Override 3472 public void onAnimationEnd(android.animation.Animator animation) { 3473 if (!cancelled) { 3474 qsbDivider.setVisibility(View.GONE); 3475 dockDivider.setVisibility(View.GONE); 3476 } 3477 } 3478 }); 3479 mDividerAnimator.setDuration(sScrollIndicatorFadeOutDuration); 3480 mDividerAnimator.start(); 3481 } 3482 } 3483 } 3484} 3485