Workspace.java revision 0f76b56865bd7b63bd21d53aaac47300396aa38f
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.launcher3; 18 19import android.animation.Animator; 20import android.animation.AnimatorListenerAdapter; 21import android.animation.AnimatorSet; 22import android.animation.LayoutTransition; 23import android.animation.ObjectAnimator; 24import android.animation.PropertyValuesHolder; 25import android.animation.ValueAnimator; 26import android.animation.ValueAnimator.AnimatorUpdateListener; 27import android.annotation.SuppressLint; 28import android.app.WallpaperManager; 29import android.appwidget.AppWidgetHostView; 30import android.appwidget.AppWidgetProviderInfo; 31import android.content.Context; 32import android.content.res.Resources; 33import android.graphics.Bitmap; 34import android.graphics.Canvas; 35import android.graphics.Point; 36import android.graphics.Rect; 37import android.graphics.drawable.Drawable; 38import android.os.Handler; 39import android.os.IBinder; 40import android.os.Parcelable; 41import android.util.AttributeSet; 42import android.util.Log; 43import android.util.Property; 44import android.util.SparseArray; 45import android.view.MotionEvent; 46import android.view.View; 47import android.view.ViewDebug; 48import android.view.ViewGroup; 49import android.view.accessibility.AccessibilityManager; 50import android.view.animation.DecelerateInterpolator; 51import android.view.animation.Interpolator; 52import android.widget.TextView; 53import android.widget.Toast; 54 55import com.android.launcher3.Launcher.CustomContentCallbacks; 56import com.android.launcher3.Launcher.LauncherOverlay; 57import com.android.launcher3.UninstallDropTarget.DropTargetSource; 58import com.android.launcher3.accessibility.AccessibleDragListenerAdapter; 59import com.android.launcher3.accessibility.OverviewAccessibilityDelegate; 60import com.android.launcher3.accessibility.OverviewScreenAccessibilityDelegate; 61import com.android.launcher3.accessibility.WorkspaceAccessibilityHelper; 62import com.android.launcher3.anim.AnimationLayerSet; 63import com.android.launcher3.compat.AppWidgetManagerCompat; 64import com.android.launcher3.compat.UserHandleCompat; 65import com.android.launcher3.config.FeatureFlags; 66import com.android.launcher3.config.ProviderConfig; 67import com.android.launcher3.dragndrop.DragController; 68import com.android.launcher3.dragndrop.DragLayer; 69import com.android.launcher3.dragndrop.DragOptions; 70import com.android.launcher3.dragndrop.DragScroller; 71import com.android.launcher3.dragndrop.DragView; 72import com.android.launcher3.dragndrop.SpringLoadedDragController; 73import com.android.launcher3.folder.Folder; 74import com.android.launcher3.folder.FolderIcon; 75import com.android.launcher3.graphics.DragPreviewProvider; 76import com.android.launcher3.shortcuts.DeepShortcutsContainer; 77import com.android.launcher3.userevent.nano.LauncherLogProto; 78import com.android.launcher3.userevent.nano.LauncherLogProto.Target; 79import com.android.launcher3.util.ItemInfoMatcher; 80import com.android.launcher3.util.LongArrayMap; 81import com.android.launcher3.util.MultiStateAlphaController; 82import com.android.launcher3.util.Thunk; 83import com.android.launcher3.util.VerticalFlingDetector; 84import com.android.launcher3.util.WallpaperOffsetInterpolator; 85import com.android.launcher3.widget.PendingAddShortcutInfo; 86import com.android.launcher3.widget.PendingAddWidgetInfo; 87 88import java.util.ArrayList; 89import java.util.HashSet; 90 91/** 92 * The workspace is a wide area with a wallpaper and a finite number of pages. 93 * Each page contains a number of icons, folders or widgets the user can 94 * interact with. A workspace is meant to be used with a fixed width only. 95 */ 96public class Workspace extends PagedView 97 implements DropTarget, DragSource, DragScroller, View.OnTouchListener, 98 DragController.DragListener, ViewGroup.OnHierarchyChangeListener, 99 Insettable, DropTargetSource { 100 private static final String TAG = "Launcher.Workspace"; 101 102 /** The value that {@link #mTransitionProgress} must be greater than for 103 * {@link #transitionStateShouldAllowDrop()} to return true. */ 104 private static final float ALLOW_DROP_TRANSITION_PROGRESS = 0.25f; 105 106 /** The value that {@link #mTransitionProgress} must be greater than for 107 * {@link #isFinishedSwitchingState()} ()} to return true. */ 108 private static final float FINISHED_SWITCHING_STATE_TRANSITION_PROGRESS = 0.5f; 109 110 private static boolean ENFORCE_DRAG_EVENT_ORDER = false; 111 112 private static final int SNAP_OFF_EMPTY_SCREEN_DURATION = 400; 113 private static final int FADE_EMPTY_SCREEN_DURATION = 150; 114 115 private static final int ADJACENT_SCREEN_DROP_DURATION = 300; 116 117 private static final boolean MAP_NO_RECURSE = false; 118 private static final boolean MAP_RECURSE = true; 119 120 // The screen id used for the empty screen always present to the right. 121 public static final long EXTRA_EMPTY_SCREEN_ID = -201; 122 // The is the first screen. It is always present, even if its empty. 123 public static final long FIRST_SCREEN_ID = 0; 124 125 private final static long CUSTOM_CONTENT_SCREEN_ID = -301; 126 127 private static final long CUSTOM_CONTENT_GESTURE_DELAY = 200; 128 private long mTouchDownTime = -1; 129 private long mCustomContentShowTime = -1; 130 131 private LayoutTransition mLayoutTransition; 132 @Thunk final WallpaperManager mWallpaperManager; 133 134 private ShortcutAndWidgetContainer mDragSourceInternal; 135 136 @Thunk LongArrayMap<CellLayout> mWorkspaceScreens = new LongArrayMap<>(); 137 @Thunk ArrayList<Long> mScreenOrder = new ArrayList<Long>(); 138 139 @Thunk Runnable mRemoveEmptyScreenRunnable; 140 @Thunk boolean mDeferRemoveExtraEmptyScreen = false; 141 142 /** 143 * CellInfo for the cell that is currently being dragged 144 */ 145 private CellLayout.CellInfo mDragInfo; 146 147 /** 148 * Target drop area calculated during last acceptDrop call. 149 */ 150 @Thunk int[] mTargetCell = new int[2]; 151 private int mDragOverX = -1; 152 private int mDragOverY = -1; 153 154 CustomContentCallbacks mCustomContentCallbacks; 155 boolean mCustomContentShowing; 156 private float mLastCustomContentScrollProgress = -1f; 157 private String mCustomContentDescription = ""; 158 159 /** 160 * The CellLayout that is currently being dragged over 161 */ 162 @Thunk CellLayout mDragTargetLayout = null; 163 /** 164 * The CellLayout that we will show as highlighted 165 */ 166 private CellLayout mDragOverlappingLayout = null; 167 168 /** 169 * The CellLayout which will be dropped to 170 */ 171 private CellLayout mDropToLayout = null; 172 173 @Thunk Launcher mLauncher; 174 @Thunk IconCache mIconCache; 175 @Thunk DragController mDragController; 176 177 // These are temporary variables to prevent having to allocate a new object just to 178 // return an (x, y) value from helper functions. Do NOT use them to maintain other state. 179 private static final Rect sTempRect = new Rect(); 180 181 private final int[] mTempXY = new int[2]; 182 @Thunk float[] mDragViewVisualCenter = new float[2]; 183 private float[] mTempCellLayoutCenterCoordinates = new float[2]; 184 185 private SpringLoadedDragController mSpringLoadedDragController; 186 private float mOverviewModeShrinkFactor; 187 188 // State variable that indicates whether the pages are small (ie when you're 189 // in all apps or customize mode) 190 191 public enum State { 192 NORMAL (false, false, LauncherLogProto.WORKSPACE), 193 NORMAL_HIDDEN (false, false, LauncherLogProto.ALLAPPS), 194 SPRING_LOADED (false, true, LauncherLogProto.WORKSPACE), 195 OVERVIEW (true, true, LauncherLogProto.OVERVIEW), 196 OVERVIEW_HIDDEN (true, false, LauncherLogProto.WIDGETS); 197 198 public final boolean shouldUpdateWidget; 199 public final boolean hasMultipleVisiblePages; 200 public final int containerType; 201 202 State(boolean shouldUpdateWidget, boolean hasMultipleVisiblePages, int containerType) { 203 this.shouldUpdateWidget = shouldUpdateWidget; 204 this.hasMultipleVisiblePages = hasMultipleVisiblePages; 205 this.containerType = containerType; 206 } 207 } 208 209 // Direction used for moving the workspace and hotseat UI 210 public enum Direction { 211 X (TRANSLATION_X), 212 Y (TRANSLATION_Y); 213 214 private final Property<View, Float> viewProperty; 215 216 Direction(Property<View, Float> viewProperty) { 217 this.viewProperty = viewProperty; 218 } 219 } 220 221 private static final int HOTSEAT_STATE_ALPHA_INDEX = 2; 222 223 /** 224 * These values correspond to {@link Direction#X} & {@link Direction#Y} 225 */ 226 private float[] mPageAlpha = new float[] {1, 1}; 227 /** 228 * Hotseat alpha can be changed when moving horizontally, vertically, changing states. 229 * The values correspond to {@link Direction#X}, {@link Direction#Y} & 230 * {@link #HOTSEAT_STATE_ALPHA_INDEX} respectively. 231 */ 232 private float[] mHotseatAlpha = new float[] {1, 1, 1}; 233 234 public static final int QSB_ALPHA_INDEX_STATE_CHANGE = 0; 235 public static final int QSB_ALPHA_INDEX_Y_TRANSLATION = 1; 236 public static final int QSB_ALPHA_INDEX_PAGE_SCROLL = 2; 237 public static final int QSB_ALPHA_INDEX_OVERLAY_SCROLL = 3; 238 239 240 MultiStateAlphaController mQsbAlphaController; 241 242 @ViewDebug.ExportedProperty(category = "launcher") 243 private State mState = State.NORMAL; 244 private boolean mIsSwitchingState = false; 245 246 boolean mAnimatingViewIntoPlace = false; 247 boolean mChildrenLayersEnabled = true; 248 249 private boolean mStripScreensOnPageStopMoving = false; 250 251 /** Is the user is dragging an item near the edge of a page? */ 252 private boolean mInScrollArea = false; 253 254 private DragPreviewProvider mOutlineProvider = null; 255 public static final int DRAG_BITMAP_PADDING = DragPreviewProvider.DRAG_BITMAP_PADDING; 256 private boolean mWorkspaceFadeInAdjacentScreens; 257 258 final WallpaperOffsetInterpolator mWallpaperOffset; 259 private boolean mUnlockWallpaperFromDefaultPageOnLayout; 260 261 @Thunk Runnable mDelayedResizeRunnable; 262 private Runnable mDelayedSnapToPageRunnable; 263 264 // Variables relating to the creation of user folders by hovering shortcuts over shortcuts 265 private static final int FOLDER_CREATION_TIMEOUT = 0; 266 public static final int REORDER_TIMEOUT = 350; 267 private final Alarm mFolderCreationAlarm = new Alarm(); 268 private final Alarm mReorderAlarm = new Alarm(); 269 private FolderIcon.PreviewBackground mFolderCreateBg; 270 private FolderIcon mDragOverFolderIcon = null; 271 private boolean mCreateUserFolderOnDrop = false; 272 private boolean mAddToExistingFolderOnDrop = false; 273 private float mMaxDistanceForFolderCreation; 274 275 private final Canvas mCanvas = new Canvas(); 276 277 // Variables relating to touch disambiguation (scrolling workspace vs. scrolling a widget) 278 private float mXDown; 279 private float mYDown; 280 final static float START_DAMPING_TOUCH_SLOP_ANGLE = (float) Math.PI / 6; 281 final static float MAX_SWIPE_ANGLE = (float) Math.PI / 3; 282 final static float TOUCH_SLOP_DAMPING_FACTOR = 4; 283 284 // Relating to the animation of items being dropped externally 285 public static final int ANIMATE_INTO_POSITION_AND_DISAPPEAR = 0; 286 public static final int ANIMATE_INTO_POSITION_AND_REMAIN = 1; 287 public static final int ANIMATE_INTO_POSITION_AND_RESIZE = 2; 288 public static final int COMPLETE_TWO_STAGE_WIDGET_DROP_ANIMATION = 3; 289 public static final int CANCEL_TWO_STAGE_WIDGET_DROP_ANIMATION = 4; 290 291 // Related to dragging, folder creation and reordering 292 private static final int DRAG_MODE_NONE = 0; 293 private static final int DRAG_MODE_CREATE_FOLDER = 1; 294 private static final int DRAG_MODE_ADD_TO_FOLDER = 2; 295 private static final int DRAG_MODE_REORDER = 3; 296 private int mDragMode = DRAG_MODE_NONE; 297 @Thunk int mLastReorderX = -1; 298 @Thunk int mLastReorderY = -1; 299 300 private SparseArray<Parcelable> mSavedStates; 301 private final ArrayList<Integer> mRestoredPages = new ArrayList<Integer>(); 302 303 private float mCurrentScale; 304 private float mTransitionProgress; 305 306 @Thunk Runnable mDeferredAction; 307 private boolean mDeferDropAfterUninstall; 308 private boolean mUninstallSuccessful; 309 310 // State related to Launcher Overlay 311 LauncherOverlay mLauncherOverlay; 312 boolean mScrollInteractionBegan; 313 boolean mStartedSendingScrollEvents; 314 float mLastOverlayScroll = 0; 315 // Total over scrollX in the overlay direction. 316 private int mUnboundedScrollX; 317 private boolean mForceDrawAdjacentPages = false; 318 // Total over scrollX in the overlay direction. 319 private float mOverlayTranslation; 320 private int mFirstPageScrollX; 321 private boolean mIgnoreQsbScroll; 322 323 // Handles workspace state transitions 324 private WorkspaceStateTransitionAnimation mStateTransitionAnimation; 325 326 private AccessibilityDelegate mPagesAccessibilityDelegate; 327 private OnStateChangeListener mOnStateChangeListener; 328 329 /** 330 * Used to inflate the Workspace from XML. 331 * 332 * @param context The application's context. 333 * @param attrs The attributes set containing the Workspace's customization values. 334 */ 335 public Workspace(Context context, AttributeSet attrs) { 336 this(context, attrs, 0); 337 } 338 339 /** 340 * Used to inflate the Workspace from XML. 341 * 342 * @param context The application's context. 343 * @param attrs The attributes set containing the Workspace's customization values. 344 * @param defStyle Unused. 345 */ 346 public Workspace(Context context, AttributeSet attrs, int defStyle) { 347 super(context, attrs, defStyle); 348 349 mLauncher = Launcher.getLauncher(context); 350 mStateTransitionAnimation = new WorkspaceStateTransitionAnimation(mLauncher, this); 351 final Resources res = getResources(); 352 DeviceProfile grid = mLauncher.getDeviceProfile(); 353 mWorkspaceFadeInAdjacentScreens = grid.shouldFadeAdjacentWorkspaceScreens(); 354 mWallpaperManager = WallpaperManager.getInstance(context); 355 356 mWallpaperOffset = new WallpaperOffsetInterpolator(this); 357 mOverviewModeShrinkFactor = 358 res.getInteger(R.integer.config_workspaceOverviewShrinkPercentage) / 100f; 359 360 setOnHierarchyChangeListener(this); 361 setHapticFeedbackEnabled(false); 362 363 initWorkspace(); 364 365 // Disable multitouch across the workspace/all apps/customize tray 366 setMotionEventSplittingEnabled(true); 367 } 368 369 @Override 370 public void setInsets(Rect insets) { 371 mInsets.set(insets); 372 373 CellLayout customScreen = getScreenWithId(CUSTOM_CONTENT_SCREEN_ID); 374 if (customScreen != null) { 375 View customContent = customScreen.getShortcutsAndWidgets().getChildAt(0); 376 if (customContent instanceof Insettable) { 377 ((Insettable) customContent).setInsets(mInsets); 378 } 379 } 380 } 381 382 public void setOnStateChangeListener(OnStateChangeListener listener) { 383 mOnStateChangeListener = listener; 384 } 385 386 // estimate the size of a widget with spans hSpan, vSpan. return MAX_VALUE for each 387 // dimension if unsuccessful 388 public int[] estimateItemSize(ItemInfo itemInfo, boolean springLoaded) { 389 float shrinkFactor = mLauncher.getDeviceProfile().workspaceSpringLoadShrinkFactor; 390 int[] size = new int[2]; 391 if (getChildCount() > 0) { 392 // Use the first non-custom page to estimate the child position 393 CellLayout cl = (CellLayout) getChildAt(numCustomPages()); 394 Rect r = estimateItemPosition(cl, 0, 0, itemInfo.spanX, itemInfo.spanY); 395 size[0] = r.width(); 396 size[1] = r.height(); 397 if (springLoaded) { 398 size[0] *= shrinkFactor; 399 size[1] *= shrinkFactor; 400 } 401 return size; 402 } else { 403 size[0] = Integer.MAX_VALUE; 404 size[1] = Integer.MAX_VALUE; 405 return size; 406 } 407 } 408 409 public Rect estimateItemPosition(CellLayout cl, int hCell, int vCell, int hSpan, int vSpan) { 410 Rect r = new Rect(); 411 cl.cellToRect(hCell, vCell, hSpan, vSpan, r); 412 return r; 413 } 414 415 @Override 416 public void onDragStart(DropTarget.DragObject dragObject, DragOptions options) { 417 if (ENFORCE_DRAG_EVENT_ORDER) { 418 enforceDragParity("onDragStart", 0, 0); 419 } 420 421 if (mDragInfo != null && mDragInfo.cell != null) { 422 CellLayout layout = (CellLayout) mDragInfo.cell.getParent().getParent(); 423 layout.markCellsAsUnoccupiedForView(mDragInfo.cell); 424 } 425 426 if (mOutlineProvider != null) { 427 // The outline is used to visualize where the item will land if dropped 428 mOutlineProvider.generateDragOutline(mCanvas); 429 } 430 431 updateChildrenLayersEnabled(false); 432 mLauncher.onDragStarted(); 433 mLauncher.lockScreenOrientation(); 434 mLauncher.onInteractionBegin(); 435 // Prevent any Un/InstallShortcutReceivers from updating the db while we are dragging 436 InstallShortcutReceiver.enableInstallQueue(); 437 438 // Do not add a new page if it is a accessible drag which was not started by the workspace. 439 // We do not support accessibility drag from other sources and instead provide a direct 440 // action for move/add to homescreen. 441 // When a accessible drag is started by the folder, we only allow rearranging withing the 442 // folder. 443 boolean addNewPage = !(options.isAccessibleDrag && dragObject.dragSource != this); 444 445 if (addNewPage) { 446 mDeferRemoveExtraEmptyScreen = false; 447 addExtraEmptyScreenOnDrag(); 448 449 if (dragObject.dragInfo.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET 450 && dragObject.dragSource != this) { 451 // When dragging a widget from different source, move to a page which has 452 // enough space to place this widget (after rearranging/resizing). We special case 453 // widgets as they cannot be placed inside a folder. 454 // Start at the current page and search right (on LTR) until finding a page with 455 // enough space. Since an empty screen is the furthest right, a page must be found. 456 int currentPage = getPageNearestToCenterOfScreen(); 457 for (int pageIndex = currentPage; pageIndex < getPageCount(); pageIndex++) { 458 CellLayout page = (CellLayout) getPageAt(pageIndex); 459 if (page.hasReorderSolution(dragObject.dragInfo)) { 460 setCurrentPage(pageIndex); 461 break; 462 } 463 } 464 } 465 } 466 467 if (!FeatureFlags.LAUNCHER3_LEGACY_WORKSPACE_DND) { 468 // Always enter the spring loaded mode 469 mLauncher.enterSpringLoadedDragMode(); 470 } 471 } 472 473 public void deferRemoveExtraEmptyScreen() { 474 mDeferRemoveExtraEmptyScreen = true; 475 } 476 477 @Override 478 public void onDragEnd() { 479 if (ENFORCE_DRAG_EVENT_ORDER) { 480 enforceDragParity("onDragEnd", 0, 0); 481 } 482 483 if (!mDeferRemoveExtraEmptyScreen) { 484 removeExtraEmptyScreen(true, mDragSourceInternal != null); 485 } 486 487 updateChildrenLayersEnabled(false); 488 mLauncher.unlockScreenOrientation(false); 489 490 // Re-enable any Un/InstallShortcutReceiver and now process any queued items 491 InstallShortcutReceiver.disableAndFlushInstallQueue(getContext()); 492 493 mOutlineProvider = null; 494 mDragInfo = null; 495 mDragSourceInternal = null; 496 mLauncher.onInteractionEnd(); 497 } 498 499 /** 500 * Initializes various states for this workspace. 501 */ 502 protected void initWorkspace() { 503 mCurrentPage = getDefaultPage(); 504 LauncherAppState app = LauncherAppState.getInstance(); 505 DeviceProfile grid = mLauncher.getDeviceProfile(); 506 mIconCache = app.getIconCache(); 507 setWillNotDraw(false); 508 setClipChildren(false); 509 setClipToPadding(false); 510 511 setMinScale(mOverviewModeShrinkFactor); 512 setupLayoutTransition(); 513 514 mMaxDistanceForFolderCreation = (0.55f * grid.iconSizePx); 515 516 // Set the wallpaper dimensions when Launcher starts up 517 setWallpaperDimension(); 518 519 setEdgeGlowColor(getResources().getColor(R.color.workspace_edge_effect_color)); 520 } 521 522 @Override 523 public void initParentViews(View parent) { 524 super.initParentViews(parent); 525 mPageIndicator.setAccessibilityDelegate(new OverviewAccessibilityDelegate()); 526 mQsbAlphaController = new MultiStateAlphaController(mLauncher.getQsbContainer(), 4); 527 } 528 529 private int getDefaultPage() { 530 return numCustomPages(); 531 } 532 533 private void setupLayoutTransition() { 534 // We want to show layout transitions when pages are deleted, to close the gap. 535 mLayoutTransition = new LayoutTransition(); 536 mLayoutTransition.enableTransitionType(LayoutTransition.DISAPPEARING); 537 mLayoutTransition.enableTransitionType(LayoutTransition.CHANGE_DISAPPEARING); 538 mLayoutTransition.disableTransitionType(LayoutTransition.APPEARING); 539 mLayoutTransition.disableTransitionType(LayoutTransition.CHANGE_APPEARING); 540 setLayoutTransition(mLayoutTransition); 541 } 542 543 void enableLayoutTransitions() { 544 setLayoutTransition(mLayoutTransition); 545 } 546 void disableLayoutTransitions() { 547 setLayoutTransition(null); 548 } 549 550 @Override 551 public void onChildViewAdded(View parent, View child) { 552 if (!(child instanceof CellLayout)) { 553 throw new IllegalArgumentException("A Workspace can only have CellLayout children."); 554 } 555 CellLayout cl = ((CellLayout) child); 556 cl.setOnInterceptTouchListener(this); 557 cl.setClickable(true); 558 cl.setImportantForAccessibility(IMPORTANT_FOR_ACCESSIBILITY_NO); 559 super.onChildViewAdded(parent, child); 560 } 561 562 boolean isTouchActive() { 563 return mTouchState != TOUCH_STATE_REST; 564 } 565 566 private int getEmbeddedQsbId() { 567 return mLauncher.getDeviceProfile().isVerticalBarLayout() 568 ? R.id.qsb_container : R.id.workspace_blocked_row; 569 } 570 571 /** 572 * Initializes and binds the first page 573 * @param qsb an existing qsb to recycle or null. 574 */ 575 public void bindAndInitFirstWorkspaceScreen(View qsb) { 576 if (!FeatureFlags.QSB_ON_FIRST_SCREEN) { 577 return; 578 } 579 // Add the first page 580 CellLayout firstPage = insertNewWorkspaceScreen(Workspace.FIRST_SCREEN_ID, 0); 581 if (FeatureFlags.PULLDOWN_SEARCH) { 582 firstPage.setOnTouchListener(new VerticalFlingDetector(mLauncher) { 583 // detect fling when touch started from empty space 584 @Override 585 public boolean onTouch(View v, MotionEvent ev) { 586 if (workspaceInModalState()) return false; 587 if (shouldConsumeTouch(v)) return true; 588 if (super.onTouch(v, ev)) { 589 mLauncher.startSearch("", false, null, false); 590 return true; 591 } 592 return false; 593 } 594 }); 595 firstPage.setOnInterceptTouchListener(new VerticalFlingDetector(mLauncher) { 596 // detect fling when touch started from on top of the icons 597 @Override 598 public boolean onTouch(View v, MotionEvent ev) { 599 if (shouldConsumeTouch(v)) return true; 600 if (super.onTouch(v, ev)) { 601 mLauncher.startSearch("", false, null, false); 602 return true; 603 } 604 return false; 605 } 606 }); 607 } 608 // Always add a QSB on the first screen. 609 if (qsb == null) { 610 // In transposed layout, we add the QSB in the Grid. As workspace does not touch the 611 // edges, we do not need a full width QSB. 612 qsb = mLauncher.getLayoutInflater().inflate( 613 mLauncher.getDeviceProfile().isVerticalBarLayout() 614 ? R.layout.qsb_container : R.layout.qsb_blocker_view, 615 firstPage, false); 616 } 617 618 CellLayout.LayoutParams lp = new CellLayout.LayoutParams(0, 0, firstPage.getCountX(), 1); 619 lp.canReorder = false; 620 if (!firstPage.addViewToCellLayout(qsb, 0, getEmbeddedQsbId(), lp, true)) { 621 Log.e(TAG, "Failed to add to item at (0, 0) to CellLayout"); 622 } 623 } 624 625 @Override 626 protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 627 super.onMeasure(widthMeasureSpec, heightMeasureSpec); 628 629 // Update the QSB to match the cell height. This is treating the QSB essentially as a child 630 // of workspace despite that it's not a true child. 631 // Note that it relies on the strict ordering of measuring the workspace before the QSB 632 // at the dragLayer level. 633 if (getChildCount() > 0) { 634 CellLayout firstPage = (CellLayout) getChildAt(0); 635 int cellHeight = firstPage.getCellHeight(); 636 637 View qsbContainer = mLauncher.getQsbContainer(); 638 ViewGroup.LayoutParams lp = qsbContainer.getLayoutParams(); 639 if (cellHeight > 0 && lp.height != cellHeight) { 640 lp.height = cellHeight; 641 qsbContainer.setLayoutParams(lp); 642 } 643 } 644 } 645 646 public void removeAllWorkspaceScreens() { 647 // Disable all layout transitions before removing all pages to ensure that we don't get the 648 // transition animations competing with us changing the scroll when we add pages or the 649 // custom content screen 650 disableLayoutTransitions(); 651 652 // Since we increment the current page when we call addCustomContentPage via bindScreens 653 // (and other places), we need to adjust the current page back when we clear the pages 654 if (hasCustomContent()) { 655 removeCustomContentPage(); 656 } 657 658 // Recycle the QSB widget 659 View qsb = findViewById(getEmbeddedQsbId()); 660 if (qsb != null) { 661 ((ViewGroup) qsb.getParent()).removeView(qsb); 662 } 663 664 // Remove the pages and clear the screen models 665 removeAllViews(); 666 mScreenOrder.clear(); 667 mWorkspaceScreens.clear(); 668 669 // Ensure that the first page is always present 670 bindAndInitFirstWorkspaceScreen(qsb); 671 672 // Re-enable the layout transitions 673 enableLayoutTransitions(); 674 } 675 676 public void insertNewWorkspaceScreenBeforeEmptyScreen(long screenId) { 677 // Find the index to insert this view into. If the empty screen exists, then 678 // insert it before that. 679 int insertIndex = mScreenOrder.indexOf(EXTRA_EMPTY_SCREEN_ID); 680 if (insertIndex < 0) { 681 insertIndex = mScreenOrder.size(); 682 } 683 insertNewWorkspaceScreen(screenId, insertIndex); 684 } 685 686 public void insertNewWorkspaceScreen(long screenId) { 687 insertNewWorkspaceScreen(screenId, getChildCount()); 688 } 689 690 public CellLayout insertNewWorkspaceScreen(long screenId, int insertIndex) { 691 if (mWorkspaceScreens.containsKey(screenId)) { 692 throw new RuntimeException("Screen id " + screenId + " already exists!"); 693 } 694 695 // Inflate the cell layout, but do not add it automatically so that we can get the newly 696 // created CellLayout. 697 CellLayout newScreen = (CellLayout) mLauncher.getLayoutInflater().inflate( 698 R.layout.workspace_screen, this, false /* attachToRoot */); 699 newScreen.setOnLongClickListener(mLongClickListener); 700 newScreen.setOnClickListener(mLauncher); 701 newScreen.setSoundEffectsEnabled(false); 702 mWorkspaceScreens.put(screenId, newScreen); 703 mScreenOrder.add(insertIndex, screenId); 704 addView(newScreen, insertIndex); 705 706 if (mLauncher.getAccessibilityDelegate().isInAccessibleDrag()) { 707 newScreen.enableAccessibleDrag(true, CellLayout.WORKSPACE_ACCESSIBILITY_DRAG); 708 } 709 710 return newScreen; 711 } 712 713 public void createCustomContentContainer() { 714 CellLayout customScreen = (CellLayout) 715 mLauncher.getLayoutInflater().inflate(R.layout.workspace_screen, this, false); 716 customScreen.disableDragTarget(); 717 customScreen.disableJailContent(); 718 719 mWorkspaceScreens.put(CUSTOM_CONTENT_SCREEN_ID, customScreen); 720 mScreenOrder.add(0, CUSTOM_CONTENT_SCREEN_ID); 721 722 // We want no padding on the custom content 723 customScreen.setPadding(0, 0, 0, 0); 724 725 addFullScreenPage(customScreen); 726 727 // Update the custom content hint 728 setCurrentPage(getCurrentPage() + 1); 729 } 730 731 public void removeCustomContentPage() { 732 CellLayout customScreen = getScreenWithId(CUSTOM_CONTENT_SCREEN_ID); 733 if (customScreen == null) { 734 throw new RuntimeException("Expected custom content screen to exist"); 735 } 736 737 mWorkspaceScreens.remove(CUSTOM_CONTENT_SCREEN_ID); 738 mScreenOrder.remove(CUSTOM_CONTENT_SCREEN_ID); 739 removeView(customScreen); 740 741 if (mCustomContentCallbacks != null) { 742 mCustomContentCallbacks.onScrollProgressChanged(0); 743 mCustomContentCallbacks.onHide(); 744 } 745 746 mCustomContentCallbacks = null; 747 748 // Update the custom content hint 749 setCurrentPage(getCurrentPage() - 1); 750 } 751 752 public void addToCustomContentPage(View customContent, CustomContentCallbacks callbacks, 753 String description) { 754 if (getPageIndexForScreenId(CUSTOM_CONTENT_SCREEN_ID) < 0) { 755 throw new RuntimeException("Expected custom content screen to exist"); 756 } 757 758 // Add the custom content to the full screen custom page 759 CellLayout customScreen = getScreenWithId(CUSTOM_CONTENT_SCREEN_ID); 760 int spanX = customScreen.getCountX(); 761 int spanY = customScreen.getCountY(); 762 CellLayout.LayoutParams lp = new CellLayout.LayoutParams(0, 0, spanX, spanY); 763 lp.canReorder = false; 764 lp.isFullscreen = true; 765 if (customContent instanceof Insettable) { 766 ((Insettable)customContent).setInsets(mInsets); 767 } 768 769 // Verify that the child is removed from any existing parent. 770 if (customContent.getParent() instanceof ViewGroup) { 771 ViewGroup parent = (ViewGroup) customContent.getParent(); 772 parent.removeView(customContent); 773 } 774 customScreen.removeAllViews(); 775 customContent.setFocusable(true); 776 customContent.setOnKeyListener(new FullscreenKeyEventListener()); 777 customContent.setOnFocusChangeListener(mLauncher.mFocusHandler 778 .getHideIndicatorOnFocusListener()); 779 customScreen.addViewToCellLayout(customContent, 0, 0, lp, true); 780 mCustomContentDescription = description; 781 782 mCustomContentCallbacks = callbacks; 783 } 784 785 public void addExtraEmptyScreenOnDrag() { 786 boolean lastChildOnScreen = false; 787 boolean childOnFinalScreen = false; 788 789 // Cancel any pending removal of empty screen 790 mRemoveEmptyScreenRunnable = null; 791 792 if (mDragSourceInternal != null) { 793 if (mDragSourceInternal.getChildCount() == 1) { 794 lastChildOnScreen = true; 795 } 796 CellLayout cl = (CellLayout) mDragSourceInternal.getParent(); 797 if (indexOfChild(cl) == getChildCount() - 1) { 798 childOnFinalScreen = true; 799 } 800 } 801 802 // If this is the last item on the final screen 803 if (lastChildOnScreen && childOnFinalScreen) { 804 return; 805 } 806 if (!mWorkspaceScreens.containsKey(EXTRA_EMPTY_SCREEN_ID)) { 807 insertNewWorkspaceScreen(EXTRA_EMPTY_SCREEN_ID); 808 } 809 } 810 811 public boolean addExtraEmptyScreen() { 812 if (!mWorkspaceScreens.containsKey(EXTRA_EMPTY_SCREEN_ID)) { 813 insertNewWorkspaceScreen(EXTRA_EMPTY_SCREEN_ID); 814 return true; 815 } 816 return false; 817 } 818 819 private void convertFinalScreenToEmptyScreenIfNecessary() { 820 if (mLauncher.isWorkspaceLoading()) { 821 // Invalid and dangerous operation if workspace is loading 822 return; 823 } 824 825 if (hasExtraEmptyScreen() || mScreenOrder.size() == 0) return; 826 long finalScreenId = mScreenOrder.get(mScreenOrder.size() - 1); 827 828 if (finalScreenId == CUSTOM_CONTENT_SCREEN_ID) return; 829 CellLayout finalScreen = mWorkspaceScreens.get(finalScreenId); 830 831 // If the final screen is empty, convert it to the extra empty screen 832 if (finalScreen.getShortcutsAndWidgets().getChildCount() == 0 && 833 !finalScreen.isDropPending()) { 834 mWorkspaceScreens.remove(finalScreenId); 835 mScreenOrder.remove(finalScreenId); 836 837 // if this is the last non-custom content screen, convert it to the empty screen 838 mWorkspaceScreens.put(EXTRA_EMPTY_SCREEN_ID, finalScreen); 839 mScreenOrder.add(EXTRA_EMPTY_SCREEN_ID); 840 841 // Update the model if we have changed any screens 842 mLauncher.getModel().updateWorkspaceScreenOrder(mLauncher, mScreenOrder); 843 } 844 } 845 846 public void removeExtraEmptyScreen(final boolean animate, boolean stripEmptyScreens) { 847 removeExtraEmptyScreenDelayed(animate, null, 0, stripEmptyScreens); 848 } 849 850 public void removeExtraEmptyScreenDelayed(final boolean animate, final Runnable onComplete, 851 final int delay, final boolean stripEmptyScreens) { 852 if (mLauncher.isWorkspaceLoading()) { 853 // Don't strip empty screens if the workspace is still loading 854 return; 855 } 856 857 if (delay > 0) { 858 postDelayed(new Runnable() { 859 @Override 860 public void run() { 861 removeExtraEmptyScreenDelayed(animate, onComplete, 0, stripEmptyScreens); 862 } 863 }, delay); 864 return; 865 } 866 867 convertFinalScreenToEmptyScreenIfNecessary(); 868 if (hasExtraEmptyScreen()) { 869 int emptyIndex = mScreenOrder.indexOf(EXTRA_EMPTY_SCREEN_ID); 870 if (getNextPage() == emptyIndex) { 871 snapToPage(getNextPage() - 1, SNAP_OFF_EMPTY_SCREEN_DURATION); 872 fadeAndRemoveEmptyScreen(SNAP_OFF_EMPTY_SCREEN_DURATION, FADE_EMPTY_SCREEN_DURATION, 873 onComplete, stripEmptyScreens); 874 } else { 875 snapToPage(getNextPage(), 0); 876 fadeAndRemoveEmptyScreen(0, FADE_EMPTY_SCREEN_DURATION, 877 onComplete, stripEmptyScreens); 878 } 879 return; 880 } else if (stripEmptyScreens) { 881 // If we're not going to strip the empty screens after removing 882 // the extra empty screen, do it right away. 883 stripEmptyScreens(); 884 } 885 886 if (onComplete != null) { 887 onComplete.run(); 888 } 889 } 890 891 private void fadeAndRemoveEmptyScreen(int delay, int duration, final Runnable onComplete, 892 final boolean stripEmptyScreens) { 893 // XXX: Do we need to update LM workspace screens below? 894 PropertyValuesHolder alpha = PropertyValuesHolder.ofFloat("alpha", 0f); 895 PropertyValuesHolder bgAlpha = PropertyValuesHolder.ofFloat("backgroundAlpha", 0f); 896 897 final CellLayout cl = mWorkspaceScreens.get(EXTRA_EMPTY_SCREEN_ID); 898 899 mRemoveEmptyScreenRunnable = new Runnable() { 900 @Override 901 public void run() { 902 if (hasExtraEmptyScreen()) { 903 mWorkspaceScreens.remove(EXTRA_EMPTY_SCREEN_ID); 904 mScreenOrder.remove(EXTRA_EMPTY_SCREEN_ID); 905 removeView(cl); 906 if (stripEmptyScreens) { 907 stripEmptyScreens(); 908 } 909 // Update the page indicator to reflect the removed page. 910 showPageIndicatorAtCurrentScroll(); 911 } 912 } 913 }; 914 915 ObjectAnimator oa = ObjectAnimator.ofPropertyValuesHolder(cl, alpha, bgAlpha); 916 oa.setDuration(duration); 917 oa.setStartDelay(delay); 918 oa.addListener(new AnimatorListenerAdapter() { 919 @Override 920 public void onAnimationEnd(Animator animation) { 921 if (mRemoveEmptyScreenRunnable != null) { 922 mRemoveEmptyScreenRunnable.run(); 923 } 924 if (onComplete != null) { 925 onComplete.run(); 926 } 927 } 928 }); 929 oa.start(); 930 } 931 932 public boolean hasExtraEmptyScreen() { 933 int nScreens = getChildCount(); 934 nScreens = nScreens - numCustomPages(); 935 return mWorkspaceScreens.containsKey(EXTRA_EMPTY_SCREEN_ID) && nScreens > 1; 936 } 937 938 public long commitExtraEmptyScreen() { 939 if (mLauncher.isWorkspaceLoading()) { 940 // Invalid and dangerous operation if workspace is loading 941 return -1; 942 } 943 944 int index = getPageIndexForScreenId(EXTRA_EMPTY_SCREEN_ID); 945 CellLayout cl = mWorkspaceScreens.get(EXTRA_EMPTY_SCREEN_ID); 946 mWorkspaceScreens.remove(EXTRA_EMPTY_SCREEN_ID); 947 mScreenOrder.remove(EXTRA_EMPTY_SCREEN_ID); 948 949 long newId = LauncherSettings.Settings.call(getContext().getContentResolver(), 950 LauncherSettings.Settings.METHOD_NEW_SCREEN_ID) 951 .getLong(LauncherSettings.Settings.EXTRA_VALUE); 952 mWorkspaceScreens.put(newId, cl); 953 mScreenOrder.add(newId); 954 955 // Update the model for the new screen 956 mLauncher.getModel().updateWorkspaceScreenOrder(mLauncher, mScreenOrder); 957 958 return newId; 959 } 960 961 public CellLayout getScreenWithId(long screenId) { 962 return mWorkspaceScreens.get(screenId); 963 } 964 965 public long getIdForScreen(CellLayout layout) { 966 int index = mWorkspaceScreens.indexOfValue(layout); 967 if (index != -1) { 968 return mWorkspaceScreens.keyAt(index); 969 } 970 return -1; 971 } 972 973 public int getPageIndexForScreenId(long screenId) { 974 return indexOfChild(mWorkspaceScreens.get(screenId)); 975 } 976 977 public long getScreenIdForPageIndex(int index) { 978 if (0 <= index && index < mScreenOrder.size()) { 979 return mScreenOrder.get(index); 980 } 981 return -1; 982 } 983 984 public ArrayList<Long> getScreenOrder() { 985 return mScreenOrder; 986 } 987 988 public void stripEmptyScreens() { 989 if (mLauncher.isWorkspaceLoading()) { 990 // Don't strip empty screens if the workspace is still loading. 991 // This is dangerous and can result in data loss. 992 return; 993 } 994 995 if (isPageInTransition()) { 996 mStripScreensOnPageStopMoving = true; 997 return; 998 } 999 1000 int currentPage = getNextPage(); 1001 ArrayList<Long> removeScreens = new ArrayList<Long>(); 1002 int total = mWorkspaceScreens.size(); 1003 for (int i = 0; i < total; i++) { 1004 long id = mWorkspaceScreens.keyAt(i); 1005 CellLayout cl = mWorkspaceScreens.valueAt(i); 1006 // FIRST_SCREEN_ID can never be removed. 1007 if ((!FeatureFlags.QSB_ON_FIRST_SCREEN || id > FIRST_SCREEN_ID) 1008 && cl.getShortcutsAndWidgets().getChildCount() == 0) { 1009 removeScreens.add(id); 1010 } 1011 } 1012 1013 boolean isInAccessibleDrag = mLauncher.getAccessibilityDelegate().isInAccessibleDrag(); 1014 1015 // We enforce at least one page to add new items to. In the case that we remove the last 1016 // such screen, we convert the last screen to the empty screen 1017 int minScreens = 1 + numCustomPages(); 1018 1019 int pageShift = 0; 1020 for (Long id: removeScreens) { 1021 CellLayout cl = mWorkspaceScreens.get(id); 1022 mWorkspaceScreens.remove(id); 1023 mScreenOrder.remove(id); 1024 1025 if (getChildCount() > minScreens) { 1026 if (indexOfChild(cl) < currentPage) { 1027 pageShift++; 1028 } 1029 1030 if (isInAccessibleDrag) { 1031 cl.enableAccessibleDrag(false, CellLayout.WORKSPACE_ACCESSIBILITY_DRAG); 1032 } 1033 1034 removeView(cl); 1035 } else { 1036 // if this is the last non-custom content screen, convert it to the empty screen 1037 mRemoveEmptyScreenRunnable = null; 1038 mWorkspaceScreens.put(EXTRA_EMPTY_SCREEN_ID, cl); 1039 mScreenOrder.add(EXTRA_EMPTY_SCREEN_ID); 1040 } 1041 } 1042 1043 if (!removeScreens.isEmpty()) { 1044 // Update the model if we have changed any screens 1045 mLauncher.getModel().updateWorkspaceScreenOrder(mLauncher, mScreenOrder); 1046 } 1047 1048 if (pageShift >= 0) { 1049 setCurrentPage(currentPage - pageShift); 1050 } 1051 } 1052 1053 /** 1054 * At bind time, we use the rank (screenId) to compute x and y for hotseat items. 1055 * See {@link #addInScreen}. 1056 */ 1057 public void addInScreenFromBind(View child, ItemInfo info) { 1058 int x = info.cellX; 1059 int y = info.cellY; 1060 if (info.container == LauncherSettings.Favorites.CONTAINER_HOTSEAT) { 1061 int screenId = (int) info.screenId; 1062 x = mLauncher.getHotseat().getCellXFromOrder(screenId); 1063 y = mLauncher.getHotseat().getCellYFromOrder(screenId); 1064 } 1065 addInScreen(child, info.container, info.screenId, x, y, info.spanX, info.spanY); 1066 } 1067 1068 /** 1069 * Adds the specified child in the specified screen based on the {@param info} 1070 * See {@link #addInScreen}. 1071 */ 1072 public void addInScreen(View child, ItemInfo info) { 1073 addInScreen(child, info.container, info.screenId, info.cellX, info.cellY, 1074 info.spanX, info.spanY); 1075 } 1076 1077 /** 1078 * Adds the specified child in the specified screen. The position and dimension of 1079 * the child are defined by x, y, spanX and spanY. 1080 * 1081 * @param child The child to add in one of the workspace's screens. 1082 * @param screenId The screen in which to add the child. 1083 * @param x The X position of the child in the screen's grid. 1084 * @param y The Y position of the child in the screen's grid. 1085 * @param spanX The number of cells spanned horizontally by the child. 1086 * @param spanY The number of cells spanned vertically by the child. 1087 */ 1088 private void addInScreen(View child, long container, long screenId, int x, int y, 1089 int spanX, int spanY) { 1090 if (container == LauncherSettings.Favorites.CONTAINER_DESKTOP) { 1091 if (getScreenWithId(screenId) == null) { 1092 Log.e(TAG, "Skipping child, screenId " + screenId + " not found"); 1093 // DEBUGGING - Print out the stack trace to see where we are adding from 1094 new Throwable().printStackTrace(); 1095 return; 1096 } 1097 } 1098 if (screenId == EXTRA_EMPTY_SCREEN_ID) { 1099 // This should never happen 1100 throw new RuntimeException("Screen id should not be EXTRA_EMPTY_SCREEN_ID"); 1101 } 1102 1103 final CellLayout layout; 1104 if (container == LauncherSettings.Favorites.CONTAINER_HOTSEAT) { 1105 layout = mLauncher.getHotseat().getLayout(); 1106 child.setOnKeyListener(new HotseatIconKeyEventListener()); 1107 1108 // Hide folder title in the hotseat 1109 if (child instanceof FolderIcon) { 1110 ((FolderIcon) child).setTextVisible(false); 1111 } 1112 } else { 1113 // Show folder title if not in the hotseat 1114 if (child instanceof FolderIcon) { 1115 ((FolderIcon) child).setTextVisible(true); 1116 } 1117 layout = getScreenWithId(screenId); 1118 child.setOnKeyListener(new IconKeyEventListener()); 1119 } 1120 1121 ViewGroup.LayoutParams genericLp = child.getLayoutParams(); 1122 CellLayout.LayoutParams lp; 1123 if (genericLp == null || !(genericLp instanceof CellLayout.LayoutParams)) { 1124 lp = new CellLayout.LayoutParams(x, y, spanX, spanY); 1125 } else { 1126 lp = (CellLayout.LayoutParams) genericLp; 1127 lp.cellX = x; 1128 lp.cellY = y; 1129 lp.cellHSpan = spanX; 1130 lp.cellVSpan = spanY; 1131 } 1132 1133 if (spanX < 0 && spanY < 0) { 1134 lp.isLockedToGrid = false; 1135 } 1136 1137 // Get the canonical child id to uniquely represent this view in this screen 1138 ItemInfo info = (ItemInfo) child.getTag(); 1139 int childId = mLauncher.getViewIdForItem(info); 1140 1141 boolean markCellsAsOccupied = !(child instanceof Folder); 1142 if (!layout.addViewToCellLayout(child, -1, childId, lp, markCellsAsOccupied)) { 1143 // TODO: This branch occurs when the workspace is adding views 1144 // outside of the defined grid 1145 // maybe we should be deleting these items from the LauncherModel? 1146 Log.e(TAG, "Failed to add to item at (" + lp.cellX + "," + lp.cellY + ") to CellLayout"); 1147 } 1148 1149 if (!(child instanceof Folder)) { 1150 child.setHapticFeedbackEnabled(false); 1151 child.setOnLongClickListener(mLongClickListener); 1152 } 1153 if (child instanceof DropTarget) { 1154 mDragController.addDropTarget((DropTarget) child); 1155 } 1156 } 1157 1158 /** 1159 * Called directly from a CellLayout (not by the framework), after we've been added as a 1160 * listener via setOnInterceptTouchEventListener(). This allows us to tell the CellLayout 1161 * that it should intercept touch events, which is not something that is normally supported. 1162 */ 1163 @SuppressLint("ClickableViewAccessibility") 1164 @Override 1165 public boolean onTouch(View v, MotionEvent event) { 1166 return shouldConsumeTouch(v); 1167 } 1168 1169 private boolean shouldConsumeTouch(View v) { 1170 return !workspaceIconsCanBeDragged() 1171 || (!workspaceInModalState() && indexOfChild(v) != mCurrentPage); 1172 } 1173 1174 public boolean isSwitchingState() { 1175 return mIsSwitchingState; 1176 } 1177 1178 /** This differs from isSwitchingState in that we take into account how far the transition 1179 * has completed. */ 1180 public boolean isFinishedSwitchingState() { 1181 return !mIsSwitchingState 1182 || (mTransitionProgress > FINISHED_SWITCHING_STATE_TRANSITION_PROGRESS); 1183 } 1184 1185 protected void onWindowVisibilityChanged (int visibility) { 1186 mLauncher.onWindowVisibilityChanged(visibility); 1187 } 1188 1189 @Override 1190 public boolean dispatchUnhandledMove(View focused, int direction) { 1191 if (workspaceInModalState() || !isFinishedSwitchingState()) { 1192 // when the home screens are shrunken, shouldn't allow side-scrolling 1193 return false; 1194 } 1195 return super.dispatchUnhandledMove(focused, direction); 1196 } 1197 1198 @Override 1199 public boolean onInterceptTouchEvent(MotionEvent ev) { 1200 switch (ev.getAction() & MotionEvent.ACTION_MASK) { 1201 case MotionEvent.ACTION_DOWN: 1202 mXDown = ev.getX(); 1203 mYDown = ev.getY(); 1204 mTouchDownTime = System.currentTimeMillis(); 1205 break; 1206 case MotionEvent.ACTION_POINTER_UP: 1207 case MotionEvent.ACTION_UP: 1208 if (mTouchState == TOUCH_STATE_REST) { 1209 final CellLayout currentPage = (CellLayout) getChildAt(mCurrentPage); 1210 if (currentPage != null) { 1211 onWallpaperTap(ev); 1212 } 1213 } 1214 } 1215 return super.onInterceptTouchEvent(ev); 1216 } 1217 1218 @Override 1219 public boolean onGenericMotionEvent(MotionEvent event) { 1220 // Ignore pointer scroll events if the custom content doesn't allow scrolling. 1221 if ((getScreenIdForPageIndex(getCurrentPage()) == CUSTOM_CONTENT_SCREEN_ID) 1222 && (mCustomContentCallbacks != null) 1223 && !mCustomContentCallbacks.isScrollingAllowed()) { 1224 return false; 1225 } 1226 return super.onGenericMotionEvent(event); 1227 } 1228 1229 protected void reinflateWidgetsIfNecessary() { 1230 final int clCount = getChildCount(); 1231 for (int i = 0; i < clCount; i++) { 1232 CellLayout cl = (CellLayout) getChildAt(i); 1233 ShortcutAndWidgetContainer swc = cl.getShortcutsAndWidgets(); 1234 final int itemCount = swc.getChildCount(); 1235 for (int j = 0; j < itemCount; j++) { 1236 View v = swc.getChildAt(j); 1237 1238 if (v instanceof LauncherAppWidgetHostView 1239 && v.getTag() instanceof LauncherAppWidgetInfo) { 1240 LauncherAppWidgetInfo info = (LauncherAppWidgetInfo) v.getTag(); 1241 LauncherAppWidgetHostView lahv = (LauncherAppWidgetHostView) v; 1242 if (lahv.isReinflateRequired()) { 1243 // Remove and rebind the current widget (which was inflated in the wrong 1244 // orientation), but don't delete it from the database 1245 mLauncher.removeItem(lahv, info, false /* deleteFromDb */); 1246 mLauncher.bindAppWidget(info); 1247 } 1248 } 1249 } 1250 } 1251 } 1252 1253 @Override 1254 protected void determineScrollingStart(MotionEvent ev) { 1255 if (!isFinishedSwitchingState()) return; 1256 1257 float deltaX = ev.getX() - mXDown; 1258 float absDeltaX = Math.abs(deltaX); 1259 float absDeltaY = Math.abs(ev.getY() - mYDown); 1260 1261 if (Float.compare(absDeltaX, 0f) == 0) return; 1262 1263 float slope = absDeltaY / absDeltaX; 1264 float theta = (float) Math.atan(slope); 1265 1266 if (absDeltaX > mTouchSlop || absDeltaY > mTouchSlop) { 1267 cancelCurrentPageLongPress(); 1268 } 1269 1270 boolean passRightSwipesToCustomContent = 1271 (mTouchDownTime - mCustomContentShowTime) > CUSTOM_CONTENT_GESTURE_DELAY; 1272 1273 boolean swipeInIgnoreDirection = mIsRtl ? deltaX < 0 : deltaX > 0; 1274 boolean onCustomContentScreen = 1275 getScreenIdForPageIndex(getCurrentPage()) == CUSTOM_CONTENT_SCREEN_ID; 1276 if (swipeInIgnoreDirection && onCustomContentScreen && passRightSwipesToCustomContent) { 1277 // Pass swipes to the right to the custom content page. 1278 return; 1279 } 1280 1281 if (onCustomContentScreen && (mCustomContentCallbacks != null) 1282 && !mCustomContentCallbacks.isScrollingAllowed()) { 1283 // Don't allow workspace scrolling if the current custom content screen doesn't allow 1284 // scrolling. 1285 return; 1286 } 1287 1288 if (theta > MAX_SWIPE_ANGLE) { 1289 // Above MAX_SWIPE_ANGLE, we don't want to ever start scrolling the workspace 1290 return; 1291 } else if (theta > START_DAMPING_TOUCH_SLOP_ANGLE) { 1292 // Above START_DAMPING_TOUCH_SLOP_ANGLE and below MAX_SWIPE_ANGLE, we want to 1293 // increase the touch slop to make it harder to begin scrolling the workspace. This 1294 // results in vertically scrolling widgets to more easily. The higher the angle, the 1295 // more we increase touch slop. 1296 theta -= START_DAMPING_TOUCH_SLOP_ANGLE; 1297 float extraRatio = (float) 1298 Math.sqrt((theta / (MAX_SWIPE_ANGLE - START_DAMPING_TOUCH_SLOP_ANGLE))); 1299 super.determineScrollingStart(ev, 1 + TOUCH_SLOP_DAMPING_FACTOR * extraRatio); 1300 } else { 1301 // Below START_DAMPING_TOUCH_SLOP_ANGLE, we don't do anything special 1302 super.determineScrollingStart(ev); 1303 } 1304 } 1305 1306 protected void onPageBeginTransition() { 1307 super.onPageBeginTransition(); 1308 updateChildrenLayersEnabled(false); 1309 } 1310 1311 protected void onPageEndTransition() { 1312 super.onPageEndTransition(); 1313 updateChildrenLayersEnabled(false); 1314 1315 if (mDragController.isDragging()) { 1316 if (workspaceInModalState()) { 1317 // If we are in springloaded mode, then force an event to check if the current touch 1318 // is under a new page (to scroll to) 1319 mDragController.forceTouchMove(); 1320 } 1321 } 1322 1323 if (mDelayedResizeRunnable != null && !mIsSwitchingState) { 1324 mDelayedResizeRunnable.run(); 1325 mDelayedResizeRunnable = null; 1326 } 1327 1328 if (mDelayedSnapToPageRunnable != null) { 1329 mDelayedSnapToPageRunnable.run(); 1330 mDelayedSnapToPageRunnable = null; 1331 } 1332 if (mStripScreensOnPageStopMoving) { 1333 stripEmptyScreens(); 1334 mStripScreensOnPageStopMoving = false; 1335 } 1336 } 1337 1338 protected void onScrollInteractionBegin() { 1339 super.onScrollInteractionEnd(); 1340 mScrollInteractionBegan = true; 1341 } 1342 1343 protected void onScrollInteractionEnd() { 1344 super.onScrollInteractionEnd(); 1345 mScrollInteractionBegan = false; 1346 if (mStartedSendingScrollEvents) { 1347 mStartedSendingScrollEvents = false; 1348 mLauncherOverlay.onScrollInteractionEnd(); 1349 } 1350 } 1351 1352 public void setLauncherOverlay(LauncherOverlay overlay) { 1353 mLauncherOverlay = overlay; 1354 // A new overlay has been set. Reset event tracking 1355 mStartedSendingScrollEvents = false; 1356 onOverlayScrollChanged(0); 1357 } 1358 1359 @Override 1360 protected int getUnboundedScrollX() { 1361 if (isScrollingOverlay()) { 1362 return mUnboundedScrollX; 1363 } 1364 1365 return super.getUnboundedScrollX(); 1366 } 1367 1368 private boolean isScrollingOverlay() { 1369 return mLauncherOverlay != null && 1370 ((mIsRtl && mUnboundedScrollX > mMaxScrollX) || (!mIsRtl && mUnboundedScrollX < 0)); 1371 } 1372 1373 @Override 1374 protected void snapToDestination() { 1375 // If we're overscrolling the overlay, we make sure to immediately reset the PagedView 1376 // to it's baseline position instead of letting the overscroll settle. The overlay handles 1377 // it's own settling, and every gesture to the overlay should be self-contained and start 1378 // from 0, so we zero it out here. 1379 if (isScrollingOverlay()) { 1380 int finalScroll = mIsRtl ? mMaxScrollX : 0; 1381 1382 // We reset mWasInOverscroll so that PagedView doesn't zero out the overscroll 1383 // interaction when we call scrollTo. 1384 mWasInOverscroll = false; 1385 scrollTo(finalScroll, getScrollY()); 1386 } else { 1387 super.snapToDestination(); 1388 } 1389 } 1390 1391 @Override 1392 public void scrollTo(int x, int y) { 1393 mUnboundedScrollX = x; 1394 super.scrollTo(x, y); 1395 } 1396 1397 private void onWorkspaceOverallScrollChanged() { 1398 if (!mIgnoreQsbScroll) { 1399 mLauncher.getQsbContainer().setTranslationX( 1400 mOverlayTranslation + mFirstPageScrollX - getScrollX()); 1401 } 1402 } 1403 1404 @Override 1405 protected void onScrollChanged(int l, int t, int oldl, int oldt) { 1406 super.onScrollChanged(l, t, oldl, oldt); 1407 onWorkspaceOverallScrollChanged(); 1408 1409 // Update the page indicator progress. 1410 boolean isTransitioning = mIsSwitchingState 1411 || (getLayoutTransition() != null && getLayoutTransition().isRunning()); 1412 if (!isTransitioning) { 1413 showPageIndicatorAtCurrentScroll(); 1414 } 1415 1416 updatePageAlphaValues(); 1417 updateStateForCustomContent(); 1418 enableHwLayersOnVisiblePages(); 1419 } 1420 1421 private void showPageIndicatorAtCurrentScroll() { 1422 if (mPageIndicator != null) { 1423 mPageIndicator.setScroll(getScrollX(), computeMaxScrollX()); 1424 } 1425 } 1426 1427 @Override 1428 protected void overScroll(float amount) { 1429 boolean shouldOverScroll = (amount <= 0 && (!hasCustomContent() || mIsRtl)) || 1430 (amount >= 0 && (!hasCustomContent() || !mIsRtl)); 1431 1432 boolean shouldScrollOverlay = mLauncherOverlay != null && 1433 ((amount <= 0 && !mIsRtl) || (amount >= 0 && mIsRtl)); 1434 1435 boolean shouldZeroOverlay = mLauncherOverlay != null && mLastOverlayScroll != 0 && 1436 ((amount >= 0 && !mIsRtl) || (amount <= 0 && mIsRtl)); 1437 1438 if (shouldScrollOverlay) { 1439 if (!mStartedSendingScrollEvents && mScrollInteractionBegan) { 1440 mStartedSendingScrollEvents = true; 1441 mLauncherOverlay.onScrollInteractionBegin(); 1442 } 1443 1444 mLastOverlayScroll = Math.abs(amount / getViewportWidth()); 1445 mLauncherOverlay.onScrollChange(mLastOverlayScroll, mIsRtl); 1446 } else if (shouldOverScroll) { 1447 dampedOverScroll(amount); 1448 } 1449 1450 if (shouldZeroOverlay) { 1451 mLauncherOverlay.onScrollChange(0, mIsRtl); 1452 } 1453 } 1454 1455 private final Interpolator mAlphaInterpolator = new DecelerateInterpolator(3f); 1456 1457 /** 1458 * The overlay scroll is being controlled locally, just update our overlay effect 1459 */ 1460 public void onOverlayScrollChanged(float scroll) { 1461 float offset = 0f; 1462 float slip = 0f; 1463 1464 scroll = Math.max(scroll - offset, 0); 1465 scroll = Math.min(1, scroll / (1 - offset)); 1466 1467 float alpha = 1 - mAlphaInterpolator.getInterpolation(scroll); 1468 float transX = mLauncher.getDragLayer().getMeasuredWidth() * scroll; 1469 transX *= 1 - slip; 1470 1471 if (mIsRtl) { 1472 transX = -transX; 1473 } 1474 mOverlayTranslation = transX; 1475 1476 // TODO(adamcohen): figure out a final effect here. We may need to recommend 1477 // different effects based on device performance. On at least one relatively high-end 1478 // device I've tried, translating the launcher causes things to get quite laggy. 1479 setWorkspaceTranslationAndAlpha(Direction.X, transX, alpha); 1480 setHotseatTranslationAndAlpha(Direction.X, transX, alpha); 1481 onWorkspaceOverallScrollChanged(); 1482 1483 mQsbAlphaController.setAlphaAtIndex(alpha, QSB_ALPHA_INDEX_OVERLAY_SCROLL); 1484 } 1485 1486 /** 1487 * Moves the workspace UI in the Y direction. 1488 * @param translation the amount of shift. 1489 * @param alpha the alpha for the workspace page 1490 */ 1491 public void setWorkspaceYTranslationAndAlpha(float translation, float alpha) { 1492 setWorkspaceTranslationAndAlpha(Direction.Y, translation, alpha); 1493 1494 mLauncher.getQsbContainer().setTranslationY(translation); 1495 mQsbAlphaController.setAlphaAtIndex(alpha, QSB_ALPHA_INDEX_Y_TRANSLATION); 1496 } 1497 1498 /** 1499 * Moves the workspace UI in the provided direction. 1500 * @param direction the direction to move the workspace 1501 * @param translation the amount of shift. 1502 * @param alpha the alpha for the workspace page 1503 */ 1504 private void setWorkspaceTranslationAndAlpha(Direction direction, float translation, float alpha) { 1505 Property<View, Float> property = direction.viewProperty; 1506 mPageAlpha[direction.ordinal()] = alpha; 1507 float finalAlpha = mPageAlpha[0] * mPageAlpha[1]; 1508 1509 View currentChild = getChildAt(getCurrentPage()); 1510 if (currentChild != null) { 1511 property.set(currentChild, translation); 1512 currentChild.setAlpha(finalAlpha); 1513 } 1514 1515 // When the animation finishes, reset all pages, just in case we missed a page. 1516 if (Float.compare(translation, 0) == 0) { 1517 for (int i = getChildCount() - 1; i >= 0; i--) { 1518 View child = getChildAt(i); 1519 property.set(child, translation); 1520 child.setAlpha(finalAlpha); 1521 } 1522 } 1523 } 1524 1525 /** 1526 * Moves the Hotseat UI in the provided direction. 1527 * @param direction the direction to move the workspace 1528 * @param translation the amount of shift. 1529 * @param alpha the alpha for the hotseat page 1530 */ 1531 public void setHotseatTranslationAndAlpha(Direction direction, float translation, float alpha) { 1532 Property<View, Float> property = direction.viewProperty; 1533 // Skip the page indicator movement in the vertical bar layout 1534 if (direction != Direction.Y || !mLauncher.getDeviceProfile().isVerticalBarLayout()) { 1535 property.set(mPageIndicator, translation); 1536 } 1537 property.set(mLauncher.getHotseat(), translation); 1538 setHotseatAlphaAtIndex(alpha, direction.ordinal()); 1539 } 1540 1541 private void setHotseatAlphaAtIndex(float alpha, int index) { 1542 mHotseatAlpha[index] = alpha; 1543 final float hotseatAlpha = mHotseatAlpha[0] * mHotseatAlpha[1] * mHotseatAlpha[2]; 1544 final float pageIndicatorAlpha = mHotseatAlpha[0] * mHotseatAlpha[2]; 1545 1546 mLauncher.getHotseat().setAlpha(hotseatAlpha); 1547 mPageIndicator.setAlpha(pageIndicatorAlpha); 1548 } 1549 1550 public ValueAnimator createHotseatAlphaAnimator(float finalValue) { 1551 if (Float.compare(finalValue, mHotseatAlpha[HOTSEAT_STATE_ALPHA_INDEX]) == 0) { 1552 // Return a dummy animator to avoid null checks. 1553 return ValueAnimator.ofFloat(0, 0); 1554 } else { 1555 ValueAnimator animator = ValueAnimator 1556 .ofFloat(mHotseatAlpha[HOTSEAT_STATE_ALPHA_INDEX], finalValue); 1557 animator.addUpdateListener(new AnimatorUpdateListener() { 1558 @Override 1559 public void onAnimationUpdate(ValueAnimator valueAnimator) { 1560 float value = (Float) valueAnimator.getAnimatedValue(); 1561 setHotseatAlphaAtIndex(value, HOTSEAT_STATE_ALPHA_INDEX); 1562 } 1563 }); 1564 1565 AccessibilityManager am = (AccessibilityManager) 1566 mLauncher.getSystemService(Context.ACCESSIBILITY_SERVICE); 1567 final boolean accessibilityEnabled = am.isEnabled(); 1568 animator.addUpdateListener( 1569 new AlphaUpdateListener(mLauncher.getHotseat(), accessibilityEnabled)); 1570 animator.addUpdateListener( 1571 new AlphaUpdateListener(mPageIndicator, accessibilityEnabled)); 1572 return animator; 1573 } 1574 } 1575 1576 @Override 1577 protected void getEdgeVerticalPosition(int[] pos) { 1578 View child = getChildAt(getPageCount() - 1); 1579 pos[0] = child.getTop(); 1580 pos[1] = child.getBottom(); 1581 } 1582 1583 @Override 1584 protected void notifyPageSwitchListener() { 1585 super.notifyPageSwitchListener(); 1586 1587 if (hasCustomContent() && getNextPage() == 0 && !mCustomContentShowing) { 1588 mCustomContentShowing = true; 1589 if (mCustomContentCallbacks != null) { 1590 mCustomContentCallbacks.onShow(false); 1591 mCustomContentShowTime = System.currentTimeMillis(); 1592 } 1593 } else if (hasCustomContent() && getNextPage() != 0 && mCustomContentShowing) { 1594 mCustomContentShowing = false; 1595 if (mCustomContentCallbacks != null) { 1596 mCustomContentCallbacks.onHide(); 1597 } 1598 } 1599 } 1600 1601 protected CustomContentCallbacks getCustomContentCallbacks() { 1602 return mCustomContentCallbacks; 1603 } 1604 1605 protected void setWallpaperDimension() { 1606 Utilities.THREAD_POOL_EXECUTOR.execute(new Runnable() { 1607 @Override 1608 public void run() { 1609 final Point size = LauncherAppState.getInstance() 1610 .getInvariantDeviceProfile().defaultWallpaperSize; 1611 if (size.x != mWallpaperManager.getDesiredMinimumWidth() 1612 || size.y != mWallpaperManager.getDesiredMinimumHeight()) { 1613 mWallpaperManager.suggestDesiredDimensions(size.x, size.y); 1614 } 1615 } 1616 }); 1617 } 1618 1619 public void lockWallpaperToDefaultPage() { 1620 mWallpaperOffset.setLockToDefaultPage(true); 1621 } 1622 1623 public void unlockWallpaperFromDefaultPageOnNextLayout() { 1624 if (mWallpaperOffset.isLockedToDefaultPage()) { 1625 mUnlockWallpaperFromDefaultPageOnLayout = true; 1626 requestLayout(); 1627 } 1628 } 1629 1630 protected void snapToPage(int whichPage, Runnable r) { 1631 snapToPage(whichPage, SLOW_PAGE_SNAP_ANIMATION_DURATION, r); 1632 } 1633 1634 protected void snapToPage(int whichPage, int duration, Runnable r) { 1635 if (mDelayedSnapToPageRunnable != null) { 1636 mDelayedSnapToPageRunnable.run(); 1637 } 1638 mDelayedSnapToPageRunnable = r; 1639 snapToPage(whichPage, duration); 1640 } 1641 1642 public void snapToScreenId(long screenId) { 1643 snapToScreenId(screenId, null); 1644 } 1645 1646 protected void snapToScreenId(long screenId, Runnable r) { 1647 snapToPage(getPageIndexForScreenId(screenId), r); 1648 } 1649 1650 @Override 1651 public void computeScroll() { 1652 super.computeScroll(); 1653 mWallpaperOffset.syncWithScroll(); 1654 } 1655 1656 public void computeScrollWithoutInvalidation() { 1657 computeScrollHelper(false); 1658 } 1659 1660 @Override 1661 protected void determineScrollingStart(MotionEvent ev, float touchSlopScale) { 1662 if (!isSwitchingState()) { 1663 super.determineScrollingStart(ev, touchSlopScale); 1664 } 1665 } 1666 1667 @Override 1668 public void announceForAccessibility(CharSequence text) { 1669 // Don't announce if apps is on top of us. 1670 if (!mLauncher.isAppsViewVisible()) { 1671 super.announceForAccessibility(text); 1672 } 1673 } 1674 1675 public void showOutlinesTemporarily() { 1676 if (!mIsPageInTransition && !isTouchActive()) { 1677 snapToPage(mCurrentPage); 1678 } 1679 } 1680 1681 private void updatePageAlphaValues() { 1682 if (mWorkspaceFadeInAdjacentScreens && 1683 !workspaceInModalState() && 1684 !mIsSwitchingState) { 1685 int screenCenter = getScrollX() + getViewportWidth() / 2; 1686 for (int i = numCustomPages(); i < getChildCount(); i++) { 1687 CellLayout child = (CellLayout) getChildAt(i); 1688 if (child != null) { 1689 float scrollProgress = getScrollProgress(screenCenter, child, i); 1690 float alpha = 1 - Math.abs(scrollProgress); 1691 child.getShortcutsAndWidgets().setAlpha(alpha); 1692 1693 if (isQsbContainerPage(i)) { 1694 mQsbAlphaController.setAlphaAtIndex(alpha, QSB_ALPHA_INDEX_PAGE_SCROLL); 1695 } 1696 } 1697 } 1698 } 1699 } 1700 1701 public boolean hasCustomContent() { 1702 return (mScreenOrder.size() > 0 && mScreenOrder.get(0) == CUSTOM_CONTENT_SCREEN_ID); 1703 } 1704 1705 public int numCustomPages() { 1706 return hasCustomContent() ? 1 : 0; 1707 } 1708 1709 public boolean isOnOrMovingToCustomContent() { 1710 return hasCustomContent() && getNextPage() == 0; 1711 } 1712 1713 private void updateStateForCustomContent() { 1714 float translationX = 0; 1715 float progress = 0; 1716 if (hasCustomContent()) { 1717 int index = mScreenOrder.indexOf(CUSTOM_CONTENT_SCREEN_ID); 1718 1719 int scrollDelta = getScrollX() - getScrollForPage(index) - 1720 getLayoutTransitionOffsetForPage(index); 1721 float scrollRange = getScrollForPage(index + 1) - getScrollForPage(index); 1722 translationX = scrollRange - scrollDelta; 1723 progress = (scrollRange - scrollDelta) / scrollRange; 1724 1725 if (mIsRtl) { 1726 translationX = Math.min(0, translationX); 1727 } else { 1728 translationX = Math.max(0, translationX); 1729 } 1730 progress = Math.max(0, progress); 1731 } 1732 1733 if (Float.compare(progress, mLastCustomContentScrollProgress) == 0) return; 1734 1735 CellLayout cc = mWorkspaceScreens.get(CUSTOM_CONTENT_SCREEN_ID); 1736 if (progress > 0 && cc.getVisibility() != VISIBLE && !workspaceInModalState()) { 1737 cc.setVisibility(VISIBLE); 1738 } 1739 1740 mLastCustomContentScrollProgress = progress; 1741 1742 // We should only update the drag layer background alpha if we are not in all apps or the 1743 // widgets tray 1744 if (mState == State.NORMAL) { 1745 mLauncher.getDragLayer().setBackgroundAlpha(progress == 1 ? 0 : progress * 0.8f); 1746 } 1747 1748 if (mLauncher.getHotseat() != null) { 1749 mLauncher.getHotseat().setTranslationX(translationX); 1750 } 1751 1752 if (mPageIndicator != null) { 1753 mPageIndicator.setTranslationX(translationX); 1754 } 1755 1756 if (mCustomContentCallbacks != null) { 1757 mCustomContentCallbacks.onScrollProgressChanged(progress); 1758 } 1759 } 1760 1761 protected void onAttachedToWindow() { 1762 super.onAttachedToWindow(); 1763 IBinder windowToken = getWindowToken(); 1764 mWallpaperOffset.setWindowToken(windowToken); 1765 computeScroll(); 1766 mDragController.setWindowToken(windowToken); 1767 } 1768 1769 protected void onDetachedFromWindow() { 1770 super.onDetachedFromWindow(); 1771 mWallpaperOffset.setWindowToken(null); 1772 } 1773 1774 protected void onResume() { 1775 // Update wallpaper dimensions if they were changed since last onResume 1776 // (we also always set the wallpaper dimensions in the constructor) 1777 if (LauncherAppState.getInstance().hasWallpaperChangedSinceLastCheck()) { 1778 setWallpaperDimension(); 1779 } 1780 mWallpaperOffset.onResume(); 1781 } 1782 1783 @Override 1784 protected void onLayout(boolean changed, int left, int top, int right, int bottom) { 1785 if (mUnlockWallpaperFromDefaultPageOnLayout) { 1786 mWallpaperOffset.setLockToDefaultPage(false); 1787 mUnlockWallpaperFromDefaultPageOnLayout = false; 1788 } 1789 if (mFirstLayout && mCurrentPage >= 0 && mCurrentPage < getChildCount()) { 1790 mWallpaperOffset.syncWithScroll(); 1791 mWallpaperOffset.jumpToFinal(); 1792 } 1793 super.onLayout(changed, left, top, right, bottom); 1794 mFirstPageScrollX = getScrollForPage(0); 1795 onWorkspaceOverallScrollChanged(); 1796 1797 final LayoutTransition transition = getLayoutTransition(); 1798 // If the transition is running defer updating max scroll, as some empty pages could 1799 // still be present, and a max scroll change could cause sudden jumps in scroll. 1800 if (transition != null && transition.isRunning()) { 1801 transition.addTransitionListener(new LayoutTransition.TransitionListener() { 1802 1803 @Override 1804 public void startTransition(LayoutTransition transition, ViewGroup container, 1805 View view, int transitionType) { 1806 mIgnoreQsbScroll = true; 1807 } 1808 1809 @Override 1810 public void endTransition(LayoutTransition transition, ViewGroup container, 1811 View view, int transitionType) { 1812 // Wait until all transitions are complete. 1813 if (!transition.isRunning()) { 1814 mIgnoreQsbScroll = false; 1815 transition.removeTransitionListener(this); 1816 mFirstPageScrollX = getScrollForPage(0); 1817 onWorkspaceOverallScrollChanged(); 1818 } 1819 } 1820 }); 1821 } 1822 updatePageAlphaValues(); 1823 } 1824 1825 @Override 1826 public int getDescendantFocusability() { 1827 if (workspaceInModalState()) { 1828 return ViewGroup.FOCUS_BLOCK_DESCENDANTS; 1829 } 1830 return super.getDescendantFocusability(); 1831 } 1832 1833 public boolean workspaceInModalState() { 1834 return mState != State.NORMAL; 1835 } 1836 1837 /** Returns whether a drag should be allowed to be started from the current workspace state. */ 1838 public boolean workspaceIconsCanBeDragged() { 1839 return mState == State.NORMAL || mState == State.SPRING_LOADED; 1840 } 1841 1842 @Thunk void updateChildrenLayersEnabled(boolean force) { 1843 boolean small = mState == State.OVERVIEW || mIsSwitchingState; 1844 boolean enableChildrenLayers = force || small || mAnimatingViewIntoPlace || isPageInTransition(); 1845 1846 if (enableChildrenLayers != mChildrenLayersEnabled) { 1847 mChildrenLayersEnabled = enableChildrenLayers; 1848 if (mChildrenLayersEnabled) { 1849 enableHwLayersOnVisiblePages(); 1850 } else { 1851 for (int i = 0; i < getPageCount(); i++) { 1852 final CellLayout cl = (CellLayout) getChildAt(i); 1853 cl.enableHardwareLayer(false); 1854 } 1855 } 1856 } 1857 } 1858 1859 private void enableHwLayersOnVisiblePages() { 1860 if (mChildrenLayersEnabled) { 1861 final int screenCount = getChildCount(); 1862 1863 float visibleLeft = getViewportOffsetX(); 1864 float visibleRight = visibleLeft + getViewportWidth(); 1865 float scaleX = getScaleX(); 1866 if (scaleX < 1 && scaleX > 0) { 1867 float mid = getMeasuredWidth() / 2; 1868 visibleLeft = mid - ((mid - visibleLeft) / scaleX); 1869 visibleRight = mid + ((visibleRight - mid) / scaleX); 1870 } 1871 1872 int leftScreen = -1; 1873 int rightScreen = -1; 1874 for (int i = numCustomPages(); i < screenCount; i++) { 1875 final View child = getPageAt(i); 1876 1877 float left = child.getLeft() + child.getTranslationX() - getScrollX(); 1878 if (left <= visibleRight && (left + child.getMeasuredWidth()) >= visibleLeft) { 1879 if (leftScreen == -1) { 1880 leftScreen = i; 1881 } 1882 rightScreen = i; 1883 } 1884 } 1885 if (mForceDrawAdjacentPages) { 1886 // In overview mode, make sure that the two side pages are visible. 1887 leftScreen = Utilities.boundToRange(getCurrentPage() - 1, 1888 numCustomPages(), rightScreen); 1889 rightScreen = Utilities.boundToRange(getCurrentPage() + 1, 1890 leftScreen, getPageCount() - 1); 1891 } 1892 1893 if (leftScreen == rightScreen) { 1894 // make sure we're caching at least two pages always 1895 if (rightScreen < screenCount - 1) { 1896 rightScreen++; 1897 } else if (leftScreen > 0) { 1898 leftScreen--; 1899 } 1900 } 1901 1902 for (int i = numCustomPages(); i < screenCount; i++) { 1903 final CellLayout layout = (CellLayout) getPageAt(i); 1904 // enable layers between left and right screen inclusive. 1905 boolean enableLayer = leftScreen <= i && i <= rightScreen; 1906 layout.enableHardwareLayer(enableLayer); 1907 } 1908 } 1909 } 1910 1911 public void buildPageHardwareLayers() { 1912 // force layers to be enabled just for the call to buildLayer 1913 updateChildrenLayersEnabled(true); 1914 if (getWindowToken() != null) { 1915 final int childCount = getChildCount(); 1916 for (int i = 0; i < childCount; i++) { 1917 CellLayout cl = (CellLayout) getChildAt(i); 1918 cl.buildHardwareLayer(); 1919 } 1920 } 1921 updateChildrenLayersEnabled(false); 1922 } 1923 1924 protected void onWallpaperTap(MotionEvent ev) { 1925 final int[] position = mTempXY; 1926 getLocationOnScreen(position); 1927 1928 int pointerIndex = ev.getActionIndex(); 1929 position[0] += (int) ev.getX(pointerIndex); 1930 position[1] += (int) ev.getY(pointerIndex); 1931 1932 mWallpaperManager.sendWallpaperCommand(getWindowToken(), 1933 ev.getAction() == MotionEvent.ACTION_UP 1934 ? WallpaperManager.COMMAND_TAP : WallpaperManager.COMMAND_SECONDARY_TAP, 1935 position[0], position[1], 0, null); 1936 } 1937 1938 public void prepareDragWithProvider(DragPreviewProvider outlineProvider) { 1939 mOutlineProvider = outlineProvider; 1940 } 1941 1942 public void exitWidgetResizeMode() { 1943 DragLayer dragLayer = mLauncher.getDragLayer(); 1944 dragLayer.clearResizeFrame(); 1945 } 1946 1947 @Override 1948 protected void getFreeScrollPageRange(int[] range) { 1949 getOverviewModePages(range); 1950 } 1951 1952 private void getOverviewModePages(int[] range) { 1953 int start = numCustomPages(); 1954 int end = getChildCount() - 1; 1955 1956 range[0] = Math.max(0, Math.min(start, getChildCount() - 1)); 1957 range[1] = Math.max(0, end); 1958 } 1959 1960 public void onStartReordering() { 1961 super.onStartReordering(); 1962 // Reordering handles its own animations, disable the automatic ones. 1963 disableLayoutTransitions(); 1964 } 1965 1966 public void onEndReordering() { 1967 super.onEndReordering(); 1968 1969 if (mLauncher.isWorkspaceLoading()) { 1970 // Invalid and dangerous operation if workspace is loading 1971 return; 1972 } 1973 1974 mScreenOrder.clear(); 1975 int count = getChildCount(); 1976 for (int i = 0; i < count; i++) { 1977 CellLayout cl = ((CellLayout) getChildAt(i)); 1978 mScreenOrder.add(getIdForScreen(cl)); 1979 } 1980 mLauncher.getUserEventDispatcher().logOverviewReorder(); 1981 mLauncher.getModel().updateWorkspaceScreenOrder(mLauncher, mScreenOrder); 1982 1983 // Re-enable auto layout transitions for page deletion. 1984 enableLayoutTransitions(); 1985 } 1986 1987 public boolean isInOverviewMode() { 1988 return mState == State.OVERVIEW; 1989 } 1990 1991 public void snapToPageFromOverView(int whichPage) { 1992 mStateTransitionAnimation.snapToPageFromOverView(whichPage); 1993 } 1994 1995 int getOverviewModeTranslationY() { 1996 DeviceProfile grid = mLauncher.getDeviceProfile(); 1997 int overviewButtonBarHeight = grid.getOverviewModeButtonBarHeight(); 1998 1999 int scaledHeight = (int) (mOverviewModeShrinkFactor * getNormalChildHeight()); 2000 Rect workspacePadding = grid.getWorkspacePadding(sTempRect); 2001 int workspaceTop = mInsets.top + workspacePadding.top; 2002 int workspaceBottom = getViewportHeight() - mInsets.bottom - workspacePadding.bottom; 2003 int overviewTop = mInsets.top; 2004 int overviewBottom = getViewportHeight() - mInsets.bottom - overviewButtonBarHeight; 2005 int workspaceOffsetTopEdge = workspaceTop + ((workspaceBottom - workspaceTop) - scaledHeight) / 2; 2006 int overviewOffsetTopEdge = overviewTop + (overviewBottom - overviewTop - scaledHeight) / 2; 2007 return -workspaceOffsetTopEdge + overviewOffsetTopEdge; 2008 } 2009 2010 float getSpringLoadedTranslationY() { 2011 DeviceProfile grid = mLauncher.getDeviceProfile(); 2012 if (grid.isVerticalBarLayout() || getChildCount() == 0) { 2013 return 0; 2014 } 2015 2016 float scaledHeight = grid.workspaceSpringLoadShrinkFactor * getNormalChildHeight(); 2017 float shrunkTop = mInsets.top + grid.dropTargetBarSizePx; 2018 float shrunkBottom = getViewportHeight() - mInsets.bottom 2019 - grid.getWorkspacePadding(sTempRect).bottom 2020 - grid.workspaceSpringLoadedBottomSpace; 2021 float totalShrunkSpace = shrunkBottom - shrunkTop; 2022 2023 float desiredCellTop = shrunkTop + (totalShrunkSpace - scaledHeight) / 2; 2024 2025 float halfHeight = getHeight() / 2; 2026 float myCenter = getTop() + halfHeight; 2027 float cellTopFromCenter = halfHeight - getChildAt(0).getTop(); 2028 float actualCellTop = myCenter - cellTopFromCenter * grid.workspaceSpringLoadShrinkFactor; 2029 return (desiredCellTop - actualCellTop) / grid.workspaceSpringLoadShrinkFactor; 2030 } 2031 2032 float getOverviewModeShrinkFactor() { 2033 return mOverviewModeShrinkFactor; 2034 } 2035 2036 /** 2037 * Sets the current workspace {@link State}, returning an animation transitioning the workspace 2038 * to that new state. 2039 */ 2040 public Animator setStateWithAnimation(State toState, boolean animated, 2041 AnimationLayerSet layerViews) { 2042 // Create the animation to the new state 2043 AnimatorSet workspaceAnim = mStateTransitionAnimation.getAnimationToState(mState, 2044 toState, animated, layerViews); 2045 2046 boolean shouldNotifyWidgetChange = !mState.shouldUpdateWidget 2047 && toState.shouldUpdateWidget; 2048 // Update the current state 2049 mState = toState; 2050 updateAccessibilityFlags(); 2051 2052 if (shouldNotifyWidgetChange) { 2053 mLauncher.notifyWidgetProvidersChanged(); 2054 } 2055 2056 if (mOnStateChangeListener != null) { 2057 mOnStateChangeListener.prepareStateChange(toState, animated ? workspaceAnim : null); 2058 } 2059 2060 onPrepareStateTransition(mState.hasMultipleVisiblePages); 2061 2062 StateTransitionListener listener = new StateTransitionListener(); 2063 if (animated) { 2064 ValueAnimator stepAnimator = ValueAnimator.ofFloat(0, 1); 2065 stepAnimator.addUpdateListener(listener); 2066 2067 workspaceAnim.play(stepAnimator); 2068 workspaceAnim.addListener(listener); 2069 } else { 2070 listener.onAnimationStart(null); 2071 listener.onAnimationEnd(null); 2072 } 2073 2074 return workspaceAnim; 2075 } 2076 2077 public State getState() { 2078 return mState; 2079 } 2080 2081 public void updateAccessibilityFlags() { 2082 // TODO: Update the accessibility flags appropriately when dragging. 2083 if (!mLauncher.getAccessibilityDelegate().isInAccessibleDrag()) { 2084 if (Utilities.ATLEAST_LOLLIPOP) { 2085 int total = getPageCount(); 2086 for (int i = numCustomPages(); i < total; i++) { 2087 updateAccessibilityFlags((CellLayout) getPageAt(i), i); 2088 } 2089 setImportantForAccessibility((mState == State.NORMAL || mState == State.OVERVIEW) 2090 ? IMPORTANT_FOR_ACCESSIBILITY_AUTO 2091 : IMPORTANT_FOR_ACCESSIBILITY_NO_HIDE_DESCENDANTS); 2092 } else { 2093 int accessible = mState == State.NORMAL ? 2094 IMPORTANT_FOR_ACCESSIBILITY_AUTO : 2095 IMPORTANT_FOR_ACCESSIBILITY_NO_HIDE_DESCENDANTS; 2096 setImportantForAccessibility(accessible); 2097 } 2098 } 2099 } 2100 2101 private void updateAccessibilityFlags(CellLayout page, int pageNo) { 2102 if (mState == State.OVERVIEW) { 2103 page.setImportantForAccessibility(IMPORTANT_FOR_ACCESSIBILITY_YES); 2104 page.getShortcutsAndWidgets().setImportantForAccessibility( 2105 IMPORTANT_FOR_ACCESSIBILITY_NO_HIDE_DESCENDANTS); 2106 page.setContentDescription(getPageDescription(pageNo)); 2107 2108 // No custom action for the first page. 2109 if (!FeatureFlags.QSB_ON_FIRST_SCREEN || pageNo > 0) { 2110 if (mPagesAccessibilityDelegate == null) { 2111 mPagesAccessibilityDelegate = new OverviewScreenAccessibilityDelegate(this); 2112 } 2113 page.setAccessibilityDelegate(mPagesAccessibilityDelegate); 2114 } 2115 } else { 2116 int accessible = mState == State.NORMAL ? 2117 IMPORTANT_FOR_ACCESSIBILITY_AUTO : 2118 IMPORTANT_FOR_ACCESSIBILITY_NO_HIDE_DESCENDANTS; 2119 page.setImportantForAccessibility(IMPORTANT_FOR_ACCESSIBILITY_NO); 2120 page.getShortcutsAndWidgets().setImportantForAccessibility(accessible); 2121 page.setContentDescription(null); 2122 page.setAccessibilityDelegate(null); 2123 } 2124 } 2125 2126 public void onPrepareStateTransition(boolean multiplePagesVisible) { 2127 mIsSwitchingState = true; 2128 mTransitionProgress = 0; 2129 2130 if (multiplePagesVisible) { 2131 mForceDrawAdjacentPages = true; 2132 } 2133 invalidate(); // This will call dispatchDraw(), which calls getVisiblePages(). 2134 2135 updateChildrenLayersEnabled(false); 2136 hideCustomContentIfNecessary(); 2137 } 2138 2139 public void onEndStateTransition() { 2140 mIsSwitchingState = false; 2141 updateChildrenLayersEnabled(false); 2142 showCustomContentIfNecessary(); 2143 mForceDrawAdjacentPages = false; 2144 mTransitionProgress = 1; 2145 } 2146 2147 void updateCustomContentVisibility() { 2148 int visibility = mState == Workspace.State.NORMAL ? VISIBLE : INVISIBLE; 2149 setCustomContentVisibility(visibility); 2150 } 2151 2152 void setCustomContentVisibility(int visibility) { 2153 if (hasCustomContent()) { 2154 mWorkspaceScreens.get(CUSTOM_CONTENT_SCREEN_ID).setVisibility(visibility); 2155 } 2156 } 2157 2158 void showCustomContentIfNecessary() { 2159 boolean show = mState == Workspace.State.NORMAL; 2160 if (show && hasCustomContent()) { 2161 mWorkspaceScreens.get(CUSTOM_CONTENT_SCREEN_ID).setVisibility(VISIBLE); 2162 } 2163 } 2164 2165 void hideCustomContentIfNecessary() { 2166 boolean hide = mState != Workspace.State.NORMAL; 2167 if (hide && hasCustomContent()) { 2168 disableLayoutTransitions(); 2169 mWorkspaceScreens.get(CUSTOM_CONTENT_SCREEN_ID).setVisibility(INVISIBLE); 2170 enableLayoutTransitions(); 2171 } 2172 } 2173 2174 /** 2175 * Returns the drawable for the given text view. 2176 */ 2177 public static Drawable getTextViewIcon(TextView tv) { 2178 final Drawable[] drawables = tv.getCompoundDrawables(); 2179 for (int i = 0; i < drawables.length; i++) { 2180 if (drawables[i] != null) { 2181 return drawables[i]; 2182 } 2183 } 2184 return null; 2185 } 2186 2187 public void startDrag(CellLayout.CellInfo cellInfo, DragOptions options) { 2188 View child = cellInfo.cell; 2189 2190 // Make sure the drag was started by a long press as opposed to a long click. 2191 if (!child.isInTouchMode()) { 2192 return; 2193 } 2194 2195 mDragInfo = cellInfo; 2196 child.setVisibility(INVISIBLE); 2197 2198 if (options.isAccessibleDrag) { 2199 mDragController.addDragListener(new AccessibleDragListenerAdapter( 2200 this, CellLayout.WORKSPACE_ACCESSIBILITY_DRAG) { 2201 @Override 2202 protected void enableAccessibleDrag(boolean enable) { 2203 super.enableAccessibleDrag(enable); 2204 setEnableForLayout(mLauncher.getHotseat().getLayout(),enable); 2205 2206 // We need to allow our individual children to become click handlers in this 2207 // case, so temporarily unset the click handlers. 2208 setOnClickListener(enable ? null : mLauncher); 2209 } 2210 }); 2211 } 2212 2213 beginDragShared(child, this, options); 2214 } 2215 2216 public void beginDragShared(View child, DragSource source, DragOptions options) { 2217 Object dragObject = child.getTag(); 2218 if (!(dragObject instanceof ItemInfo)) { 2219 String msg = "Drag started with a view that has no tag set. This " 2220 + "will cause a crash (issue 11627249) down the line. " 2221 + "View: " + child + " tag: " + child.getTag(); 2222 throw new IllegalStateException(msg); 2223 } 2224 beginDragShared(child, source, (ItemInfo) dragObject, 2225 new DragPreviewProvider(child), options); 2226 } 2227 2228 2229 public DragView beginDragShared(View child, DragSource source, ItemInfo dragObject, 2230 DragPreviewProvider previewProvider, DragOptions dragOptions) { 2231 child.clearFocus(); 2232 child.setPressed(false); 2233 mOutlineProvider = previewProvider; 2234 2235 // The drag bitmap follows the touch point around on the screen 2236 final Bitmap b = previewProvider.createDragBitmap(mCanvas); 2237 int halfPadding = previewProvider.previewPadding / 2; 2238 2239 float scale = previewProvider.getScaleAndPosition(b, mTempXY); 2240 int dragLayerX = mTempXY[0]; 2241 int dragLayerY = mTempXY[1]; 2242 2243 DeviceProfile grid = mLauncher.getDeviceProfile(); 2244 Point dragVisualizeOffset = null; 2245 Rect dragRect = null; 2246 if (child instanceof BubbleTextView) { 2247 int iconSize = grid.iconSizePx; 2248 int top = child.getPaddingTop(); 2249 int left = (b.getWidth() - iconSize) / 2; 2250 int right = left + iconSize; 2251 int bottom = top + iconSize; 2252 dragLayerY += top; 2253 // Note: The drag region is used to calculate drag layer offsets, but the 2254 // dragVisualizeOffset in addition to the dragRect (the size) to position the outline. 2255 dragVisualizeOffset = new Point(- halfPadding, halfPadding); 2256 dragRect = new Rect(left, top, right, bottom); 2257 } else if (child instanceof FolderIcon) { 2258 int previewSize = grid.folderIconSizePx; 2259 dragVisualizeOffset = new Point(- halfPadding, halfPadding - child.getPaddingTop()); 2260 dragRect = new Rect(0, child.getPaddingTop(), child.getWidth(), previewSize); 2261 } 2262 2263 // Clear the pressed state if necessary 2264 if (child instanceof BubbleTextView) { 2265 BubbleTextView icon = (BubbleTextView) child; 2266 icon.clearPressedBackground(); 2267 } 2268 2269 if (child.getParent() instanceof ShortcutAndWidgetContainer) { 2270 mDragSourceInternal = (ShortcutAndWidgetContainer) child.getParent(); 2271 } 2272 2273 if (child instanceof BubbleTextView) { 2274 DeepShortcutsContainer dsc = DeepShortcutsContainer.showForIcon((BubbleTextView) child); 2275 if (dsc != null) { 2276 dragOptions.preDragCondition = dsc.createPreDragCondition(); 2277 2278 mLauncher.getUserEventDispatcher().resetElapsedContainerMillis(); 2279 } 2280 } 2281 2282 DragView dv = mDragController.startDrag(b, dragLayerX, dragLayerY, source, 2283 dragObject, dragVisualizeOffset, dragRect, scale, dragOptions); 2284 dv.setIntrinsicIconScaleFactor(source.getIntrinsicIconScaleFactor()); 2285 b.recycle(); 2286 return dv; 2287 } 2288 2289 private boolean transitionStateShouldAllowDrop() { 2290 return ((!isSwitchingState() || mTransitionProgress > ALLOW_DROP_TRANSITION_PROGRESS) && 2291 (mState == State.NORMAL || mState == State.SPRING_LOADED)); 2292 } 2293 2294 /** 2295 * {@inheritDoc} 2296 */ 2297 public boolean acceptDrop(DragObject d) { 2298 // If it's an external drop (e.g. from All Apps), check if it should be accepted 2299 CellLayout dropTargetLayout = mDropToLayout; 2300 if (d.dragSource != this) { 2301 // Don't accept the drop if we're not over a screen at time of drop 2302 if (dropTargetLayout == null) { 2303 return false; 2304 } 2305 if (!transitionStateShouldAllowDrop()) return false; 2306 2307 mDragViewVisualCenter = d.getVisualCenter(mDragViewVisualCenter); 2308 2309 // We want the point to be mapped to the dragTarget. 2310 if (mLauncher.isHotseatLayout(dropTargetLayout)) { 2311 mapPointFromSelfToHotseatLayout(mLauncher.getHotseat(), mDragViewVisualCenter); 2312 } else { 2313 mapPointFromSelfToChild(dropTargetLayout, mDragViewVisualCenter); 2314 } 2315 2316 int spanX = 1; 2317 int spanY = 1; 2318 if (mDragInfo != null) { 2319 final CellLayout.CellInfo dragCellInfo = mDragInfo; 2320 spanX = dragCellInfo.spanX; 2321 spanY = dragCellInfo.spanY; 2322 } else { 2323 spanX = d.dragInfo.spanX; 2324 spanY = d.dragInfo.spanY; 2325 } 2326 2327 int minSpanX = spanX; 2328 int minSpanY = spanY; 2329 if (d.dragInfo instanceof PendingAddWidgetInfo) { 2330 minSpanX = ((PendingAddWidgetInfo) d.dragInfo).minSpanX; 2331 minSpanY = ((PendingAddWidgetInfo) d.dragInfo).minSpanY; 2332 } 2333 2334 mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], 2335 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, dropTargetLayout, 2336 mTargetCell); 2337 float distance = dropTargetLayout.getDistanceFromCell(mDragViewVisualCenter[0], 2338 mDragViewVisualCenter[1], mTargetCell); 2339 if (mCreateUserFolderOnDrop && willCreateUserFolder(d.dragInfo, 2340 dropTargetLayout, mTargetCell, distance, true)) { 2341 return true; 2342 } 2343 2344 if (mAddToExistingFolderOnDrop && willAddToExistingUserFolder(d.dragInfo, 2345 dropTargetLayout, mTargetCell, distance)) { 2346 return true; 2347 } 2348 2349 int[] resultSpan = new int[2]; 2350 mTargetCell = dropTargetLayout.performReorder((int) mDragViewVisualCenter[0], 2351 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, spanX, spanY, 2352 null, mTargetCell, resultSpan, CellLayout.MODE_ACCEPT_DROP); 2353 boolean foundCell = mTargetCell[0] >= 0 && mTargetCell[1] >= 0; 2354 2355 // Don't accept the drop if there's no room for the item 2356 if (!foundCell) { 2357 onNoCellFound(dropTargetLayout); 2358 return false; 2359 } 2360 } 2361 2362 long screenId = getIdForScreen(dropTargetLayout); 2363 if (screenId == EXTRA_EMPTY_SCREEN_ID) { 2364 commitExtraEmptyScreen(); 2365 } 2366 2367 return true; 2368 } 2369 2370 boolean willCreateUserFolder(ItemInfo info, CellLayout target, int[] targetCell, 2371 float distance, boolean considerTimeout) { 2372 if (distance > mMaxDistanceForFolderCreation) return false; 2373 View dropOverView = target.getChildAt(targetCell[0], targetCell[1]); 2374 return willCreateUserFolder(info, dropOverView, considerTimeout); 2375 } 2376 2377 boolean willCreateUserFolder(ItemInfo info, View dropOverView, boolean considerTimeout) { 2378 if (dropOverView != null) { 2379 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) dropOverView.getLayoutParams(); 2380 if (lp.useTmpCoords && (lp.tmpCellX != lp.cellX || lp.tmpCellY != lp.cellY)) { 2381 return false; 2382 } 2383 } 2384 2385 boolean hasntMoved = false; 2386 if (mDragInfo != null) { 2387 hasntMoved = dropOverView == mDragInfo.cell; 2388 } 2389 2390 if (dropOverView == null || hasntMoved || (considerTimeout && !mCreateUserFolderOnDrop)) { 2391 return false; 2392 } 2393 2394 boolean aboveShortcut = (dropOverView.getTag() instanceof ShortcutInfo); 2395 boolean willBecomeShortcut = 2396 (info.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPLICATION || 2397 info.itemType == LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT || 2398 info.itemType == LauncherSettings.Favorites.ITEM_TYPE_DEEP_SHORTCUT); 2399 2400 return (aboveShortcut && willBecomeShortcut); 2401 } 2402 2403 boolean willAddToExistingUserFolder(ItemInfo dragInfo, CellLayout target, int[] targetCell, 2404 float distance) { 2405 if (distance > mMaxDistanceForFolderCreation) return false; 2406 View dropOverView = target.getChildAt(targetCell[0], targetCell[1]); 2407 return willAddToExistingUserFolder(dragInfo, dropOverView); 2408 2409 } 2410 boolean willAddToExistingUserFolder(ItemInfo dragInfo, View dropOverView) { 2411 if (dropOverView != null) { 2412 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) dropOverView.getLayoutParams(); 2413 if (lp.useTmpCoords && (lp.tmpCellX != lp.cellX || lp.tmpCellY != lp.cellY)) { 2414 return false; 2415 } 2416 } 2417 2418 if (dropOverView instanceof FolderIcon) { 2419 FolderIcon fi = (FolderIcon) dropOverView; 2420 if (fi.acceptDrop(dragInfo)) { 2421 return true; 2422 } 2423 } 2424 return false; 2425 } 2426 2427 boolean createUserFolderIfNecessary(View newView, long container, CellLayout target, 2428 int[] targetCell, float distance, boolean external, DragView dragView, 2429 Runnable postAnimationRunnable) { 2430 if (distance > mMaxDistanceForFolderCreation) return false; 2431 View v = target.getChildAt(targetCell[0], targetCell[1]); 2432 2433 boolean hasntMoved = false; 2434 if (mDragInfo != null) { 2435 CellLayout cellParent = getParentCellLayoutForView(mDragInfo.cell); 2436 hasntMoved = (mDragInfo.cellX == targetCell[0] && 2437 mDragInfo.cellY == targetCell[1]) && (cellParent == target); 2438 } 2439 2440 if (v == null || hasntMoved || !mCreateUserFolderOnDrop) return false; 2441 mCreateUserFolderOnDrop = false; 2442 final long screenId = getIdForScreen(target); 2443 2444 boolean aboveShortcut = (v.getTag() instanceof ShortcutInfo); 2445 boolean willBecomeShortcut = (newView.getTag() instanceof ShortcutInfo); 2446 2447 if (aboveShortcut && willBecomeShortcut) { 2448 ShortcutInfo sourceInfo = (ShortcutInfo) newView.getTag(); 2449 ShortcutInfo destInfo = (ShortcutInfo) v.getTag(); 2450 // if the drag started here, we need to remove it from the workspace 2451 if (!external) { 2452 getParentCellLayoutForView(mDragInfo.cell).removeView(mDragInfo.cell); 2453 } 2454 2455 Rect folderLocation = new Rect(); 2456 float scale = mLauncher.getDragLayer().getDescendantRectRelativeToSelf(v, folderLocation); 2457 target.removeView(v); 2458 2459 FolderIcon fi = 2460 mLauncher.addFolder(target, container, screenId, targetCell[0], targetCell[1]); 2461 destInfo.cellX = -1; 2462 destInfo.cellY = -1; 2463 sourceInfo.cellX = -1; 2464 sourceInfo.cellY = -1; 2465 2466 // If the dragView is null, we can't animate 2467 boolean animate = dragView != null; 2468 if (animate) { 2469 // In order to keep everything continuous, we hand off the currently rendered 2470 // folder background to the newly created icon. This preserves animation state. 2471 fi.setFolderBackground(mFolderCreateBg); 2472 mFolderCreateBg = new FolderIcon.PreviewBackground(); 2473 fi.performCreateAnimation(destInfo, v, sourceInfo, dragView, folderLocation, scale, 2474 postAnimationRunnable); 2475 } else { 2476 fi.prepareCreate(v); 2477 fi.addItem(destInfo); 2478 fi.addItem(sourceInfo); 2479 } 2480 return true; 2481 } 2482 return false; 2483 } 2484 2485 boolean addToExistingFolderIfNecessary(View newView, CellLayout target, int[] targetCell, 2486 float distance, DragObject d, boolean external) { 2487 if (distance > mMaxDistanceForFolderCreation) return false; 2488 2489 View dropOverView = target.getChildAt(targetCell[0], targetCell[1]); 2490 if (!mAddToExistingFolderOnDrop) return false; 2491 mAddToExistingFolderOnDrop = false; 2492 2493 if (dropOverView instanceof FolderIcon) { 2494 FolderIcon fi = (FolderIcon) dropOverView; 2495 if (fi.acceptDrop(d.dragInfo)) { 2496 fi.onDrop(d); 2497 2498 // if the drag started here, we need to remove it from the workspace 2499 if (!external) { 2500 getParentCellLayoutForView(mDragInfo.cell).removeView(mDragInfo.cell); 2501 } 2502 return true; 2503 } 2504 } 2505 return false; 2506 } 2507 2508 @Override 2509 public void prepareAccessibilityDrop() { } 2510 2511 public void onDrop(final DragObject d) { 2512 mDragViewVisualCenter = d.getVisualCenter(mDragViewVisualCenter); 2513 CellLayout dropTargetLayout = mDropToLayout; 2514 2515 // We want the point to be mapped to the dragTarget. 2516 if (dropTargetLayout != null) { 2517 if (mLauncher.isHotseatLayout(dropTargetLayout)) { 2518 mapPointFromSelfToHotseatLayout(mLauncher.getHotseat(), mDragViewVisualCenter); 2519 } else { 2520 mapPointFromSelfToChild(dropTargetLayout, mDragViewVisualCenter); 2521 } 2522 } 2523 2524 int snapScreen = -1; 2525 boolean resizeOnDrop = false; 2526 if (d.dragSource != this) { 2527 final int[] touchXY = new int[] { (int) mDragViewVisualCenter[0], 2528 (int) mDragViewVisualCenter[1] }; 2529 onDropExternal(touchXY, d.dragInfo, dropTargetLayout, d); 2530 } else if (mDragInfo != null) { 2531 final View cell = mDragInfo.cell; 2532 boolean droppedOnOriginalCellDuringTransition = false; 2533 2534 if (dropTargetLayout != null && !d.cancelled) { 2535 // Move internally 2536 boolean hasMovedLayouts = (getParentCellLayoutForView(cell) != dropTargetLayout); 2537 boolean hasMovedIntoHotseat = mLauncher.isHotseatLayout(dropTargetLayout); 2538 long container = hasMovedIntoHotseat ? 2539 LauncherSettings.Favorites.CONTAINER_HOTSEAT : 2540 LauncherSettings.Favorites.CONTAINER_DESKTOP; 2541 long screenId = (mTargetCell[0] < 0) ? 2542 mDragInfo.screenId : getIdForScreen(dropTargetLayout); 2543 int spanX = mDragInfo != null ? mDragInfo.spanX : 1; 2544 int spanY = mDragInfo != null ? mDragInfo.spanY : 1; 2545 // First we find the cell nearest to point at which the item is 2546 // dropped, without any consideration to whether there is an item there. 2547 2548 mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], (int) 2549 mDragViewVisualCenter[1], spanX, spanY, dropTargetLayout, mTargetCell); 2550 float distance = dropTargetLayout.getDistanceFromCell(mDragViewVisualCenter[0], 2551 mDragViewVisualCenter[1], mTargetCell); 2552 2553 // If the item being dropped is a shortcut and the nearest drop 2554 // cell also contains a shortcut, then create a folder with the two shortcuts. 2555 if (!mInScrollArea && createUserFolderIfNecessary(cell, container, 2556 dropTargetLayout, mTargetCell, distance, false, d.dragView, null)) { 2557 return; 2558 } 2559 2560 if (addToExistingFolderIfNecessary(cell, dropTargetLayout, mTargetCell, 2561 distance, d, false)) { 2562 return; 2563 } 2564 2565 // Aside from the special case where we're dropping a shortcut onto a shortcut, 2566 // we need to find the nearest cell location that is vacant 2567 ItemInfo item = d.dragInfo; 2568 int minSpanX = item.spanX; 2569 int minSpanY = item.spanY; 2570 if (item.minSpanX > 0 && item.minSpanY > 0) { 2571 minSpanX = item.minSpanX; 2572 minSpanY = item.minSpanY; 2573 } 2574 2575 droppedOnOriginalCellDuringTransition = mIsSwitchingState 2576 && item.screenId == screenId && item.container == container 2577 && item.cellX == mTargetCell[0] && item.cellY == mTargetCell[1]; 2578 2579 // When quickly moving an item, a user may accidentally rearrange their 2580 // workspace. So instead we move the icon back safely to its original position. 2581 boolean returnToOriginalCellToPreventShuffling = !isFinishedSwitchingState() 2582 && !droppedOnOriginalCellDuringTransition && !dropTargetLayout 2583 .isRegionVacant(mTargetCell[0], mTargetCell[1], spanX, spanY); 2584 int[] resultSpan = new int[2]; 2585 if (returnToOriginalCellToPreventShuffling) { 2586 mTargetCell[0] = mTargetCell[1] = -1; 2587 } else { 2588 mTargetCell = dropTargetLayout.performReorder((int) mDragViewVisualCenter[0], 2589 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, spanX, spanY, cell, 2590 mTargetCell, resultSpan, CellLayout.MODE_ON_DROP); 2591 } 2592 2593 boolean foundCell = mTargetCell[0] >= 0 && mTargetCell[1] >= 0; 2594 2595 // if the widget resizes on drop 2596 if (foundCell && (cell instanceof AppWidgetHostView) && 2597 (resultSpan[0] != item.spanX || resultSpan[1] != item.spanY)) { 2598 resizeOnDrop = true; 2599 item.spanX = resultSpan[0]; 2600 item.spanY = resultSpan[1]; 2601 AppWidgetHostView awhv = (AppWidgetHostView) cell; 2602 AppWidgetResizeFrame.updateWidgetSizeRanges(awhv, mLauncher, resultSpan[0], 2603 resultSpan[1]); 2604 } 2605 2606 if (foundCell) { 2607 if (getScreenIdForPageIndex(mCurrentPage) != screenId && !hasMovedIntoHotseat) { 2608 snapScreen = getPageIndexForScreenId(screenId); 2609 snapToPage(snapScreen); 2610 } 2611 2612 final ItemInfo info = (ItemInfo) cell.getTag(); 2613 if (hasMovedLayouts) { 2614 // Reparent the view 2615 CellLayout parentCell = getParentCellLayoutForView(cell); 2616 if (parentCell != null) { 2617 parentCell.removeView(cell); 2618 } else if (ProviderConfig.IS_DOGFOOD_BUILD) { 2619 throw new NullPointerException("mDragInfo.cell has null parent"); 2620 } 2621 addInScreen(cell, container, screenId, mTargetCell[0], mTargetCell[1], 2622 info.spanX, info.spanY); 2623 } 2624 2625 // update the item's position after drop 2626 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) cell.getLayoutParams(); 2627 lp.cellX = lp.tmpCellX = mTargetCell[0]; 2628 lp.cellY = lp.tmpCellY = mTargetCell[1]; 2629 lp.cellHSpan = item.spanX; 2630 lp.cellVSpan = item.spanY; 2631 lp.isLockedToGrid = true; 2632 2633 if (container != LauncherSettings.Favorites.CONTAINER_HOTSEAT && 2634 cell instanceof LauncherAppWidgetHostView) { 2635 final CellLayout cellLayout = dropTargetLayout; 2636 // We post this call so that the widget has a chance to be placed 2637 // in its final location 2638 2639 final LauncherAppWidgetHostView hostView = (LauncherAppWidgetHostView) cell; 2640 AppWidgetProviderInfo pInfo = hostView.getAppWidgetInfo(); 2641 if (pInfo != null && pInfo.resizeMode != AppWidgetProviderInfo.RESIZE_NONE 2642 && !d.accessibleDrag) { 2643 mDelayedResizeRunnable = new Runnable() { 2644 public void run() { 2645 if (!isPageInTransition()) { 2646 DragLayer dragLayer = mLauncher.getDragLayer(); 2647 dragLayer.addResizeFrame(hostView, cellLayout); 2648 } 2649 } 2650 }; 2651 } 2652 } 2653 2654 LauncherModel.modifyItemInDatabase(mLauncher, info, container, screenId, lp.cellX, 2655 lp.cellY, item.spanX, item.spanY); 2656 } else { 2657 if (!returnToOriginalCellToPreventShuffling) { 2658 onNoCellFound(dropTargetLayout); 2659 } 2660 2661 // If we can't find a drop location, we return the item to its original position 2662 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) cell.getLayoutParams(); 2663 mTargetCell[0] = lp.cellX; 2664 mTargetCell[1] = lp.cellY; 2665 CellLayout layout = (CellLayout) cell.getParent().getParent(); 2666 layout.markCellsAsOccupiedForView(cell); 2667 } 2668 } 2669 2670 final CellLayout parent = (CellLayout) cell.getParent().getParent(); 2671 // Prepare it to be animated into its new position 2672 // This must be called after the view has been re-parented 2673 final Runnable onCompleteRunnable = new Runnable() { 2674 @Override 2675 public void run() { 2676 mAnimatingViewIntoPlace = false; 2677 updateChildrenLayersEnabled(false); 2678 } 2679 }; 2680 mAnimatingViewIntoPlace = true; 2681 if (d.dragView.hasDrawn()) { 2682 if (droppedOnOriginalCellDuringTransition) { 2683 // Animate the item to its original position, while simultaneously exiting 2684 // spring-loaded mode so the page meets the icon where it was picked up. 2685 mLauncher.getDragController().animateDragViewToOriginalPosition( 2686 mDelayedResizeRunnable, cell, 2687 mStateTransitionAnimation.mSpringLoadedTransitionTime); 2688 mLauncher.exitSpringLoadedDragMode(); 2689 mLauncher.getDropTargetBar().onDragEnd(); 2690 parent.onDropChild(cell); 2691 return; 2692 } 2693 final ItemInfo info = (ItemInfo) cell.getTag(); 2694 boolean isWidget = info.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET 2695 || info.itemType == LauncherSettings.Favorites.ITEM_TYPE_CUSTOM_APPWIDGET; 2696 if (isWidget) { 2697 int animationType = resizeOnDrop ? ANIMATE_INTO_POSITION_AND_RESIZE : 2698 ANIMATE_INTO_POSITION_AND_DISAPPEAR; 2699 animateWidgetDrop(info, parent, d.dragView, 2700 onCompleteRunnable, animationType, cell, false); 2701 } else { 2702 int duration = snapScreen < 0 ? -1 : ADJACENT_SCREEN_DROP_DURATION; 2703 mLauncher.getDragLayer().animateViewIntoPosition(d.dragView, cell, duration, 2704 onCompleteRunnable, this); 2705 } 2706 } else { 2707 d.deferDragViewCleanupPostAnimation = false; 2708 cell.setVisibility(VISIBLE); 2709 } 2710 parent.onDropChild(cell); 2711 } 2712 if (d.stateAnnouncer != null) { 2713 d.stateAnnouncer.completeAction(R.string.item_moved); 2714 } 2715 } 2716 2717 public void onNoCellFound(View dropTargetLayout) { 2718 if (mLauncher.isHotseatLayout(dropTargetLayout)) { 2719 Hotseat hotseat = mLauncher.getHotseat(); 2720 boolean droppedOnAllAppsIcon = !FeatureFlags.NO_ALL_APPS_ICON 2721 && mTargetCell != null && !mLauncher.getDeviceProfile().inv.isAllAppsButtonRank( 2722 hotseat.getOrderInHotseat(mTargetCell[0], mTargetCell[1])); 2723 if (!droppedOnAllAppsIcon) { 2724 // Only show message when hotseat is full and drop target was not AllApps button 2725 showOutOfSpaceMessage(true); 2726 } 2727 } else { 2728 showOutOfSpaceMessage(false); 2729 } 2730 } 2731 2732 private void showOutOfSpaceMessage(boolean isHotseatLayout) { 2733 int strId = (isHotseatLayout ? R.string.hotseat_out_of_space : R.string.out_of_space); 2734 Toast.makeText(mLauncher, mLauncher.getString(strId), Toast.LENGTH_SHORT).show(); 2735 } 2736 2737 /** 2738 * Computes the area relative to dragLayer which is used to display a page. 2739 */ 2740 public void getPageAreaRelativeToDragLayer(Rect outArea) { 2741 CellLayout child = (CellLayout) getChildAt(getNextPage()); 2742 if (child == null) { 2743 return; 2744 } 2745 ShortcutAndWidgetContainer boundingLayout = child.getShortcutsAndWidgets(); 2746 2747 // Use the absolute left instead of the child left, as we want the visible area 2748 // irrespective of the visible child. Since the view can only scroll horizontally, the 2749 // top position is not affected. 2750 mTempXY[0] = getViewportOffsetX() + getPaddingLeft() + boundingLayout.getLeft(); 2751 mTempXY[1] = child.getTop() + boundingLayout.getTop(); 2752 2753 float scale = mLauncher.getDragLayer().getDescendantCoordRelativeToSelf(this, mTempXY); 2754 outArea.set(mTempXY[0], mTempXY[1], 2755 (int) (mTempXY[0] + scale * boundingLayout.getMeasuredWidth()), 2756 (int) (mTempXY[1] + scale * boundingLayout.getMeasuredHeight())); 2757 } 2758 2759 @Override 2760 public void onDragEnter(DragObject d) { 2761 if (ENFORCE_DRAG_EVENT_ORDER) { 2762 enforceDragParity("onDragEnter", 1, 1); 2763 } 2764 2765 mCreateUserFolderOnDrop = false; 2766 mAddToExistingFolderOnDrop = false; 2767 2768 mDropToLayout = null; 2769 setDropLayoutForDragObject(d); 2770 2771 if (!workspaceInModalState() && FeatureFlags.LAUNCHER3_LEGACY_WORKSPACE_DND) { 2772 mLauncher.getDragLayer().showPageHints(); 2773 } 2774 } 2775 2776 @Override 2777 public void onDragExit(DragObject d) { 2778 if (ENFORCE_DRAG_EVENT_ORDER) { 2779 enforceDragParity("onDragExit", -1, 0); 2780 } 2781 2782 // Here we store the final page that will be dropped to, if the workspace in fact 2783 // receives the drop 2784 if (mInScrollArea) { 2785 if (isPageInTransition()) { 2786 // If the user drops while the page is scrolling, we should use that page as the 2787 // destination instead of the page that is being hovered over. 2788 mDropToLayout = (CellLayout) getPageAt(getNextPage()); 2789 } else { 2790 mDropToLayout = mDragOverlappingLayout; 2791 } 2792 } else { 2793 mDropToLayout = mDragTargetLayout; 2794 } 2795 2796 if (mDragMode == DRAG_MODE_CREATE_FOLDER) { 2797 mCreateUserFolderOnDrop = true; 2798 } else if (mDragMode == DRAG_MODE_ADD_TO_FOLDER) { 2799 mAddToExistingFolderOnDrop = true; 2800 } 2801 2802 // Reset the scroll area and previous drag target 2803 onResetScrollArea(); 2804 setCurrentDropLayout(null); 2805 setCurrentDragOverlappingLayout(null); 2806 2807 mSpringLoadedDragController.cancel(); 2808 2809 mLauncher.getDragLayer().hidePageHints(); 2810 } 2811 2812 private void enforceDragParity(String event, int update, int expectedValue) { 2813 enforceDragParity(this, event, update, expectedValue); 2814 for (int i = 0; i < getChildCount(); i++) { 2815 enforceDragParity(getChildAt(i), event, update, expectedValue); 2816 } 2817 } 2818 2819 private void enforceDragParity(View v, String event, int update, int expectedValue) { 2820 Object tag = v.getTag(R.id.drag_event_parity); 2821 int value = tag == null ? 0 : (Integer) tag; 2822 value += update; 2823 v.setTag(R.id.drag_event_parity, value); 2824 2825 if (value != expectedValue) { 2826 Log.e(TAG, event + ": Drag contract violated: " + value); 2827 } 2828 } 2829 2830 void setCurrentDropLayout(CellLayout layout) { 2831 if (mDragTargetLayout != null) { 2832 mDragTargetLayout.revertTempState(); 2833 mDragTargetLayout.onDragExit(); 2834 } 2835 mDragTargetLayout = layout; 2836 if (mDragTargetLayout != null) { 2837 mDragTargetLayout.onDragEnter(); 2838 } 2839 cleanupReorder(true); 2840 cleanupFolderCreation(); 2841 setCurrentDropOverCell(-1, -1); 2842 } 2843 2844 void setCurrentDragOverlappingLayout(CellLayout layout) { 2845 if (mDragOverlappingLayout != null) { 2846 mDragOverlappingLayout.setIsDragOverlapping(false); 2847 } 2848 mDragOverlappingLayout = layout; 2849 if (mDragOverlappingLayout != null) { 2850 mDragOverlappingLayout.setIsDragOverlapping(true); 2851 } 2852 // Invalidating the scrim will also force this CellLayout 2853 // to be invalidated so that it is highlighted if necessary. 2854 mLauncher.getDragLayer().invalidateScrim(); 2855 } 2856 2857 public CellLayout getCurrentDragOverlappingLayout() { 2858 return mDragOverlappingLayout; 2859 } 2860 2861 void setCurrentDropOverCell(int x, int y) { 2862 if (x != mDragOverX || y != mDragOverY) { 2863 mDragOverX = x; 2864 mDragOverY = y; 2865 setDragMode(DRAG_MODE_NONE); 2866 } 2867 } 2868 2869 void setDragMode(int dragMode) { 2870 if (dragMode != mDragMode) { 2871 if (dragMode == DRAG_MODE_NONE) { 2872 cleanupAddToFolder(); 2873 // We don't want to cancel the re-order alarm every time the target cell changes 2874 // as this feels to slow / unresponsive. 2875 cleanupReorder(false); 2876 cleanupFolderCreation(); 2877 } else if (dragMode == DRAG_MODE_ADD_TO_FOLDER) { 2878 cleanupReorder(true); 2879 cleanupFolderCreation(); 2880 } else if (dragMode == DRAG_MODE_CREATE_FOLDER) { 2881 cleanupAddToFolder(); 2882 cleanupReorder(true); 2883 } else if (dragMode == DRAG_MODE_REORDER) { 2884 cleanupAddToFolder(); 2885 cleanupFolderCreation(); 2886 } 2887 mDragMode = dragMode; 2888 } 2889 } 2890 2891 private void cleanupFolderCreation() { 2892 if (mFolderCreateBg != null) { 2893 mFolderCreateBg.animateToRest(); 2894 } 2895 mFolderCreationAlarm.setOnAlarmListener(null); 2896 mFolderCreationAlarm.cancelAlarm(); 2897 } 2898 2899 private void cleanupAddToFolder() { 2900 if (mDragOverFolderIcon != null) { 2901 mDragOverFolderIcon.onDragExit(); 2902 mDragOverFolderIcon = null; 2903 } 2904 } 2905 2906 private void cleanupReorder(boolean cancelAlarm) { 2907 // Any pending reorders are canceled 2908 if (cancelAlarm) { 2909 mReorderAlarm.cancelAlarm(); 2910 } 2911 mLastReorderX = -1; 2912 mLastReorderY = -1; 2913 } 2914 2915 /* 2916 * 2917 * Convert the 2D coordinate xy from the parent View's coordinate space to this CellLayout's 2918 * coordinate space. The argument xy is modified with the return result. 2919 */ 2920 void mapPointFromSelfToChild(View v, float[] xy) { 2921 xy[0] = xy[0] - v.getLeft(); 2922 xy[1] = xy[1] - v.getTop(); 2923 } 2924 2925 boolean isPointInSelfOverHotseat(int x, int y) { 2926 mTempXY[0] = x; 2927 mTempXY[1] = y; 2928 mLauncher.getDragLayer().getDescendantCoordRelativeToSelf(this, mTempXY, true); 2929 View hotseat = mLauncher.getHotseat(); 2930 return mTempXY[0] >= hotseat.getLeft() && 2931 mTempXY[0] <= hotseat.getRight() && 2932 mTempXY[1] >= hotseat.getTop() && 2933 mTempXY[1] <= hotseat.getBottom(); 2934 } 2935 2936 void mapPointFromSelfToHotseatLayout(Hotseat hotseat, float[] xy) { 2937 mTempXY[0] = (int) xy[0]; 2938 mTempXY[1] = (int) xy[1]; 2939 mLauncher.getDragLayer().getDescendantCoordRelativeToSelf(this, mTempXY, true); 2940 mLauncher.getDragLayer().mapCoordInSelfToDescendant(hotseat.getLayout(), mTempXY); 2941 2942 xy[0] = mTempXY[0]; 2943 xy[1] = mTempXY[1]; 2944 } 2945 2946 /* 2947 * 2948 * Convert the 2D coordinate xy from this CellLayout's coordinate space to 2949 * the parent View's coordinate space. The argument xy is modified with the return result. 2950 * 2951 */ 2952 void mapPointFromChildToSelf(View v, float[] xy) { 2953 xy[0] += v.getLeft(); 2954 xy[1] += v.getTop(); 2955 } 2956 2957 static private float squaredDistance(float[] point1, float[] point2) { 2958 float distanceX = point1[0] - point2[0]; 2959 float distanceY = point2[1] - point2[1]; 2960 return distanceX * distanceX + distanceY * distanceY; 2961 } 2962 2963 /* 2964 * 2965 * This method returns the CellLayout that is currently being dragged to. In order to drag 2966 * to a CellLayout, either the touch point must be directly over the CellLayout, or as a second 2967 * strategy, we see if the dragView is overlapping any CellLayout and choose the closest one 2968 * 2969 * Return null if no CellLayout is currently being dragged over 2970 * 2971 */ 2972 private CellLayout findMatchingPageForDragOver( 2973 DragView dragView, float originX, float originY, boolean exact) { 2974 // We loop through all the screens (ie CellLayouts) and see which ones overlap 2975 // with the item being dragged and then choose the one that's closest to the touch point 2976 final int screenCount = getChildCount(); 2977 CellLayout bestMatchingScreen = null; 2978 float smallestDistSoFar = Float.MAX_VALUE; 2979 2980 for (int i = 0; i < screenCount; i++) { 2981 // The custom content screen is not a valid drag over option 2982 if (mScreenOrder.get(i) == CUSTOM_CONTENT_SCREEN_ID) { 2983 continue; 2984 } 2985 2986 CellLayout cl = (CellLayout) getChildAt(i); 2987 2988 final float[] touchXy = {originX, originY}; 2989 mapPointFromSelfToChild(cl, touchXy); 2990 2991 if (touchXy[0] >= 0 && touchXy[0] <= cl.getWidth() && 2992 touchXy[1] >= 0 && touchXy[1] <= cl.getHeight()) { 2993 return cl; 2994 } 2995 2996 if (!exact) { 2997 // Get the center of the cell layout in screen coordinates 2998 final float[] cellLayoutCenter = mTempCellLayoutCenterCoordinates; 2999 cellLayoutCenter[0] = cl.getWidth()/2; 3000 cellLayoutCenter[1] = cl.getHeight()/2; 3001 mapPointFromChildToSelf(cl, cellLayoutCenter); 3002 3003 touchXy[0] = originX; 3004 touchXy[1] = originY; 3005 3006 // Calculate the distance between the center of the CellLayout 3007 // and the touch point 3008 float dist = squaredDistance(touchXy, cellLayoutCenter); 3009 3010 if (dist < smallestDistSoFar) { 3011 smallestDistSoFar = dist; 3012 bestMatchingScreen = cl; 3013 } 3014 } 3015 } 3016 return bestMatchingScreen; 3017 } 3018 3019 private boolean isDragWidget(DragObject d) { 3020 return (d.dragInfo instanceof LauncherAppWidgetInfo || 3021 d.dragInfo instanceof PendingAddWidgetInfo); 3022 } 3023 3024 public void onDragOver(DragObject d) { 3025 // Skip drag over events while we are dragging over side pages 3026 if (mInScrollArea || !transitionStateShouldAllowDrop()) return; 3027 3028 ItemInfo item = d.dragInfo; 3029 if (item == null) { 3030 if (ProviderConfig.IS_DOGFOOD_BUILD) { 3031 throw new NullPointerException("DragObject has null info"); 3032 } 3033 return; 3034 } 3035 3036 // Ensure that we have proper spans for the item that we are dropping 3037 if (item.spanX < 0 || item.spanY < 0) throw new RuntimeException("Improper spans found"); 3038 mDragViewVisualCenter = d.getVisualCenter(mDragViewVisualCenter); 3039 3040 final View child = (mDragInfo == null) ? null : mDragInfo.cell; 3041 if (setDropLayoutForDragObject(d)) { 3042 boolean isInSpringLoadedMode = (mState == State.SPRING_LOADED); 3043 if (isInSpringLoadedMode) { 3044 if (mLauncher.isHotseatLayout(mDragTargetLayout)) { 3045 mSpringLoadedDragController.cancel(); 3046 } else { 3047 mSpringLoadedDragController.setAlarm(mDragTargetLayout); 3048 } 3049 } 3050 } 3051 3052 // Handle the drag over 3053 if (mDragTargetLayout != null) { 3054 // We want the point to be mapped to the dragTarget. 3055 if (mLauncher.isHotseatLayout(mDragTargetLayout)) { 3056 mapPointFromSelfToHotseatLayout(mLauncher.getHotseat(), mDragViewVisualCenter); 3057 } else { 3058 mapPointFromSelfToChild(mDragTargetLayout, mDragViewVisualCenter); 3059 } 3060 3061 int minSpanX = item.spanX; 3062 int minSpanY = item.spanY; 3063 if (item.minSpanX > 0 && item.minSpanY > 0) { 3064 minSpanX = item.minSpanX; 3065 minSpanY = item.minSpanY; 3066 } 3067 3068 mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], 3069 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, 3070 mDragTargetLayout, mTargetCell); 3071 int reorderX = mTargetCell[0]; 3072 int reorderY = mTargetCell[1]; 3073 3074 setCurrentDropOverCell(mTargetCell[0], mTargetCell[1]); 3075 3076 float targetCellDistance = mDragTargetLayout.getDistanceFromCell( 3077 mDragViewVisualCenter[0], mDragViewVisualCenter[1], mTargetCell); 3078 3079 manageFolderFeedback(mDragTargetLayout, mTargetCell, targetCellDistance, d); 3080 3081 boolean nearestDropOccupied = mDragTargetLayout.isNearestDropLocationOccupied((int) 3082 mDragViewVisualCenter[0], (int) mDragViewVisualCenter[1], item.spanX, 3083 item.spanY, child, mTargetCell); 3084 3085 if (!nearestDropOccupied) { 3086 mDragTargetLayout.visualizeDropLocation(child, mOutlineProvider, 3087 mTargetCell[0], mTargetCell[1], item.spanX, item.spanY, false, d); 3088 } else if ((mDragMode == DRAG_MODE_NONE || mDragMode == DRAG_MODE_REORDER) 3089 && !mReorderAlarm.alarmPending() && (mLastReorderX != reorderX || 3090 mLastReorderY != reorderY)) { 3091 3092 int[] resultSpan = new int[2]; 3093 mDragTargetLayout.performReorder((int) mDragViewVisualCenter[0], 3094 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, item.spanX, item.spanY, 3095 child, mTargetCell, resultSpan, CellLayout.MODE_SHOW_REORDER_HINT); 3096 3097 // Otherwise, if we aren't adding to or creating a folder and there's no pending 3098 // reorder, then we schedule a reorder 3099 ReorderAlarmListener listener = new ReorderAlarmListener(mDragViewVisualCenter, 3100 minSpanX, minSpanY, item.spanX, item.spanY, d, child); 3101 mReorderAlarm.setOnAlarmListener(listener); 3102 mReorderAlarm.setAlarm(REORDER_TIMEOUT); 3103 } 3104 3105 if (mDragMode == DRAG_MODE_CREATE_FOLDER || mDragMode == DRAG_MODE_ADD_TO_FOLDER || 3106 !nearestDropOccupied) { 3107 if (mDragTargetLayout != null) { 3108 mDragTargetLayout.revertTempState(); 3109 } 3110 } 3111 } 3112 } 3113 3114 /** 3115 * Updates {@link #mDragTargetLayout} and {@link #mDragOverlappingLayout} 3116 * based on the DragObject's position. 3117 * 3118 * The layout will be: 3119 * - The Hotseat if the drag object is over it 3120 * - A side page if we are in spring-loaded mode and the drag object is over it 3121 * - The current page otherwise 3122 * 3123 * @return whether the layout is different from the current {@link #mDragTargetLayout}. 3124 */ 3125 private boolean setDropLayoutForDragObject(DragObject d) { 3126 CellLayout layout = null; 3127 // Test to see if we are over the hotseat first 3128 if (mLauncher.getHotseat() != null && !isDragWidget(d)) { 3129 if (isPointInSelfOverHotseat(d.x, d.y)) { 3130 layout = mLauncher.getHotseat().getLayout(); 3131 } 3132 } 3133 if (layout == null) { 3134 // Identify whether we have dragged over a side page, 3135 // otherwise just use the current page 3136 layout = workspaceInModalState() ? 3137 findMatchingPageForDragOver(d.dragView, d.x, d.y, false) 3138 : getCurrentDropLayout(); 3139 } 3140 if (layout != mDragTargetLayout) { 3141 setCurrentDropLayout(layout); 3142 setCurrentDragOverlappingLayout(layout); 3143 return true; 3144 } 3145 return false; 3146 } 3147 3148 private void manageFolderFeedback(CellLayout targetLayout, 3149 int[] targetCell, float distance, DragObject dragObject) { 3150 if (distance > mMaxDistanceForFolderCreation) return; 3151 3152 final View dragOverView = mDragTargetLayout.getChildAt(mTargetCell[0], mTargetCell[1]); 3153 ItemInfo info = dragObject.dragInfo; 3154 boolean userFolderPending = willCreateUserFolder(info, dragOverView, false); 3155 if (mDragMode == DRAG_MODE_NONE && userFolderPending && 3156 !mFolderCreationAlarm.alarmPending()) { 3157 3158 FolderCreationAlarmListener listener = new 3159 FolderCreationAlarmListener(targetLayout, targetCell[0], targetCell[1]); 3160 3161 if (!dragObject.accessibleDrag) { 3162 mFolderCreationAlarm.setOnAlarmListener(listener); 3163 mFolderCreationAlarm.setAlarm(FOLDER_CREATION_TIMEOUT); 3164 } else { 3165 listener.onAlarm(mFolderCreationAlarm); 3166 } 3167 3168 if (dragObject.stateAnnouncer != null) { 3169 dragObject.stateAnnouncer.announce(WorkspaceAccessibilityHelper 3170 .getDescriptionForDropOver(dragOverView, getContext())); 3171 } 3172 return; 3173 } 3174 3175 boolean willAddToFolder = willAddToExistingUserFolder(info, dragOverView); 3176 if (willAddToFolder && mDragMode == DRAG_MODE_NONE) { 3177 mDragOverFolderIcon = ((FolderIcon) dragOverView); 3178 mDragOverFolderIcon.onDragEnter(info); 3179 if (targetLayout != null) { 3180 targetLayout.clearDragOutlines(); 3181 } 3182 setDragMode(DRAG_MODE_ADD_TO_FOLDER); 3183 3184 if (dragObject.stateAnnouncer != null) { 3185 dragObject.stateAnnouncer.announce(WorkspaceAccessibilityHelper 3186 .getDescriptionForDropOver(dragOverView, getContext())); 3187 } 3188 return; 3189 } 3190 3191 if (mDragMode == DRAG_MODE_ADD_TO_FOLDER && !willAddToFolder) { 3192 setDragMode(DRAG_MODE_NONE); 3193 } 3194 if (mDragMode == DRAG_MODE_CREATE_FOLDER && !userFolderPending) { 3195 setDragMode(DRAG_MODE_NONE); 3196 } 3197 } 3198 3199 class FolderCreationAlarmListener implements OnAlarmListener { 3200 CellLayout layout; 3201 int cellX; 3202 int cellY; 3203 3204 FolderIcon.PreviewBackground bg = new FolderIcon.PreviewBackground(); 3205 3206 public FolderCreationAlarmListener(CellLayout layout, int cellX, int cellY) { 3207 this.layout = layout; 3208 this.cellX = cellX; 3209 this.cellY = cellY; 3210 3211 DeviceProfile grid = mLauncher.getDeviceProfile(); 3212 BubbleTextView cell = (BubbleTextView) layout.getChildAt(cellX, cellY); 3213 3214 bg.setup(getResources().getDisplayMetrics(), grid, null, 3215 cell.getMeasuredWidth(), cell.getPaddingTop()); 3216 3217 // The full preview background should appear behind the icon 3218 bg.isClipping = false; 3219 } 3220 3221 public void onAlarm(Alarm alarm) { 3222 mFolderCreateBg = bg; 3223 mFolderCreateBg.animateToAccept(layout, cellX, cellY); 3224 layout.clearDragOutlines(); 3225 setDragMode(DRAG_MODE_CREATE_FOLDER); 3226 } 3227 } 3228 3229 class ReorderAlarmListener implements OnAlarmListener { 3230 float[] dragViewCenter; 3231 int minSpanX, minSpanY, spanX, spanY; 3232 DragObject dragObject; 3233 View child; 3234 3235 public ReorderAlarmListener(float[] dragViewCenter, int minSpanX, int minSpanY, int spanX, 3236 int spanY, DragObject dragObject, View child) { 3237 this.dragViewCenter = dragViewCenter; 3238 this.minSpanX = minSpanX; 3239 this.minSpanY = minSpanY; 3240 this.spanX = spanX; 3241 this.spanY = spanY; 3242 this.child = child; 3243 this.dragObject = dragObject; 3244 } 3245 3246 public void onAlarm(Alarm alarm) { 3247 int[] resultSpan = new int[2]; 3248 mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], 3249 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, mDragTargetLayout, 3250 mTargetCell); 3251 mLastReorderX = mTargetCell[0]; 3252 mLastReorderY = mTargetCell[1]; 3253 3254 mTargetCell = mDragTargetLayout.performReorder((int) mDragViewVisualCenter[0], 3255 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, spanX, spanY, 3256 child, mTargetCell, resultSpan, CellLayout.MODE_DRAG_OVER); 3257 3258 if (mTargetCell[0] < 0 || mTargetCell[1] < 0) { 3259 mDragTargetLayout.revertTempState(); 3260 } else { 3261 setDragMode(DRAG_MODE_REORDER); 3262 } 3263 3264 boolean resize = resultSpan[0] != spanX || resultSpan[1] != spanY; 3265 mDragTargetLayout.visualizeDropLocation(child, mOutlineProvider, 3266 mTargetCell[0], mTargetCell[1], resultSpan[0], resultSpan[1], resize, dragObject); 3267 } 3268 } 3269 3270 @Override 3271 public void getHitRectRelativeToDragLayer(Rect outRect) { 3272 // We want the workspace to have the whole area of the display (it will find the correct 3273 // cell layout to drop to in the existing drag/drop logic. 3274 mLauncher.getDragLayer().getDescendantRectRelativeToSelf(this, outRect); 3275 } 3276 3277 /** 3278 * Drop an item that didn't originate on one of the workspace screens. 3279 * It may have come from Launcher (e.g. from all apps or customize), or it may have 3280 * come from another app altogether. 3281 * 3282 * NOTE: This can also be called when we are outside of a drag event, when we want 3283 * to add an item to one of the workspace screens. 3284 */ 3285 private void onDropExternal(final int[] touchXY, final ItemInfo dragInfo, 3286 final CellLayout cellLayout, DragObject d) { 3287 final Runnable exitSpringLoadedRunnable = new Runnable() { 3288 @Override 3289 public void run() { 3290 mLauncher.exitSpringLoadedDragModeDelayed(true, 3291 Launcher.EXIT_SPRINGLOADED_MODE_SHORT_TIMEOUT, null); 3292 } 3293 }; 3294 3295 ItemInfo info = dragInfo; 3296 int spanX = info.spanX; 3297 int spanY = info.spanY; 3298 if (mDragInfo != null) { 3299 spanX = mDragInfo.spanX; 3300 spanY = mDragInfo.spanY; 3301 } 3302 3303 final long container = mLauncher.isHotseatLayout(cellLayout) ? 3304 LauncherSettings.Favorites.CONTAINER_HOTSEAT : 3305 LauncherSettings.Favorites.CONTAINER_DESKTOP; 3306 final long screenId = getIdForScreen(cellLayout); 3307 if (!mLauncher.isHotseatLayout(cellLayout) 3308 && screenId != getScreenIdForPageIndex(mCurrentPage) 3309 && mState != State.SPRING_LOADED) { 3310 snapToScreenId(screenId, null); 3311 } 3312 3313 if (info instanceof PendingAddItemInfo) { 3314 final PendingAddItemInfo pendingInfo = (PendingAddItemInfo) dragInfo; 3315 3316 boolean findNearestVacantCell = true; 3317 if (pendingInfo.itemType == LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT) { 3318 mTargetCell = findNearestArea((int) touchXY[0], (int) touchXY[1], spanX, spanY, 3319 cellLayout, mTargetCell); 3320 float distance = cellLayout.getDistanceFromCell(mDragViewVisualCenter[0], 3321 mDragViewVisualCenter[1], mTargetCell); 3322 if (willCreateUserFolder(d.dragInfo, cellLayout, mTargetCell, distance, true) 3323 || willAddToExistingUserFolder( 3324 d.dragInfo, cellLayout, mTargetCell, distance)) { 3325 findNearestVacantCell = false; 3326 } 3327 } 3328 3329 final ItemInfo item = d.dragInfo; 3330 boolean updateWidgetSize = false; 3331 if (findNearestVacantCell) { 3332 int minSpanX = item.spanX; 3333 int minSpanY = item.spanY; 3334 if (item.minSpanX > 0 && item.minSpanY > 0) { 3335 minSpanX = item.minSpanX; 3336 minSpanY = item.minSpanY; 3337 } 3338 int[] resultSpan = new int[2]; 3339 mTargetCell = cellLayout.performReorder((int) mDragViewVisualCenter[0], 3340 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, info.spanX, info.spanY, 3341 null, mTargetCell, resultSpan, CellLayout.MODE_ON_DROP_EXTERNAL); 3342 3343 if (resultSpan[0] != item.spanX || resultSpan[1] != item.spanY) { 3344 updateWidgetSize = true; 3345 } 3346 item.spanX = resultSpan[0]; 3347 item.spanY = resultSpan[1]; 3348 } 3349 3350 Runnable onAnimationCompleteRunnable = new Runnable() { 3351 @Override 3352 public void run() { 3353 // Normally removeExtraEmptyScreen is called in Workspace#onDragEnd, but when 3354 // adding an item that may not be dropped right away (due to a config activity) 3355 // we defer the removal until the activity returns. 3356 deferRemoveExtraEmptyScreen(); 3357 3358 // When dragging and dropping from customization tray, we deal with creating 3359 // widgets/shortcuts/folders in a slightly different way 3360 mLauncher.addPendingItem(pendingInfo, container, screenId, mTargetCell, 3361 item.spanX, item.spanY); 3362 } 3363 }; 3364 boolean isWidget = pendingInfo.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET 3365 || pendingInfo.itemType == LauncherSettings.Favorites.ITEM_TYPE_CUSTOM_APPWIDGET; 3366 3367 AppWidgetHostView finalView = isWidget ? 3368 ((PendingAddWidgetInfo) pendingInfo).boundWidget : null; 3369 3370 if (finalView != null && updateWidgetSize) { 3371 AppWidgetResizeFrame.updateWidgetSizeRanges(finalView, mLauncher, item.spanX, 3372 item.spanY); 3373 } 3374 3375 int animationStyle = ANIMATE_INTO_POSITION_AND_DISAPPEAR; 3376 if (isWidget && ((PendingAddWidgetInfo) pendingInfo).info != null && 3377 ((PendingAddWidgetInfo) pendingInfo).info.configure != null) { 3378 animationStyle = ANIMATE_INTO_POSITION_AND_REMAIN; 3379 } 3380 animateWidgetDrop(info, cellLayout, d.dragView, onAnimationCompleteRunnable, 3381 animationStyle, finalView, true); 3382 } else { 3383 // This is for other drag/drop cases, like dragging from All Apps 3384 View view = null; 3385 3386 switch (info.itemType) { 3387 case LauncherSettings.Favorites.ITEM_TYPE_APPLICATION: 3388 case LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT: 3389 case LauncherSettings.Favorites.ITEM_TYPE_DEEP_SHORTCUT: 3390 if (info.container == NO_ID && info instanceof AppInfo) { 3391 // Came from all apps -- make a copy 3392 info = ((AppInfo) info).makeShortcut(); 3393 d.dragInfo = info; 3394 } 3395 view = mLauncher.createShortcut(cellLayout, (ShortcutInfo) info); 3396 break; 3397 case LauncherSettings.Favorites.ITEM_TYPE_FOLDER: 3398 view = FolderIcon.fromXml(R.layout.folder_icon, mLauncher, cellLayout, 3399 (FolderInfo) info, mIconCache); 3400 break; 3401 default: 3402 throw new IllegalStateException("Unknown item type: " + info.itemType); 3403 } 3404 3405 // First we find the cell nearest to point at which the item is 3406 // dropped, without any consideration to whether there is an item there. 3407 if (touchXY != null) { 3408 mTargetCell = findNearestArea((int) touchXY[0], (int) touchXY[1], spanX, spanY, 3409 cellLayout, mTargetCell); 3410 float distance = cellLayout.getDistanceFromCell(mDragViewVisualCenter[0], 3411 mDragViewVisualCenter[1], mTargetCell); 3412 d.postAnimationRunnable = exitSpringLoadedRunnable; 3413 if (createUserFolderIfNecessary(view, container, cellLayout, mTargetCell, distance, 3414 true, d.dragView, d.postAnimationRunnable)) { 3415 return; 3416 } 3417 if (addToExistingFolderIfNecessary(view, cellLayout, mTargetCell, distance, d, 3418 true)) { 3419 return; 3420 } 3421 } 3422 3423 if (touchXY != null) { 3424 // when dragging and dropping, just find the closest free spot 3425 mTargetCell = cellLayout.performReorder((int) mDragViewVisualCenter[0], 3426 (int) mDragViewVisualCenter[1], 1, 1, 1, 1, 3427 null, mTargetCell, null, CellLayout.MODE_ON_DROP_EXTERNAL); 3428 } else { 3429 cellLayout.findCellForSpan(mTargetCell, 1, 1); 3430 } 3431 // Add the item to DB before adding to screen ensures that the container and other 3432 // values of the info is properly updated. 3433 LauncherModel.addOrMoveItemInDatabase(mLauncher, info, container, screenId, 3434 mTargetCell[0], mTargetCell[1]); 3435 3436 addInScreen(view, container, screenId, mTargetCell[0], mTargetCell[1], 3437 info.spanX, info.spanY); 3438 cellLayout.onDropChild(view); 3439 cellLayout.getShortcutsAndWidgets().measureChild(view); 3440 3441 if (d.dragView != null) { 3442 // We wrap the animation call in the temporary set and reset of the current 3443 // cellLayout to its final transform -- this means we animate the drag view to 3444 // the correct final location. 3445 setFinalTransitionTransform(cellLayout); 3446 mLauncher.getDragLayer().animateViewIntoPosition(d.dragView, view, 3447 exitSpringLoadedRunnable, this); 3448 resetTransitionTransform(cellLayout); 3449 } 3450 } 3451 } 3452 3453 public Bitmap createWidgetBitmap(ItemInfo widgetInfo, View layout) { 3454 int[] unScaledSize = mLauncher.getWorkspace().estimateItemSize(widgetInfo, false); 3455 int visibility = layout.getVisibility(); 3456 layout.setVisibility(VISIBLE); 3457 3458 int width = MeasureSpec.makeMeasureSpec(unScaledSize[0], MeasureSpec.EXACTLY); 3459 int height = MeasureSpec.makeMeasureSpec(unScaledSize[1], MeasureSpec.EXACTLY); 3460 Bitmap b = Bitmap.createBitmap(unScaledSize[0], unScaledSize[1], 3461 Bitmap.Config.ARGB_8888); 3462 mCanvas.setBitmap(b); 3463 3464 layout.measure(width, height); 3465 layout.layout(0, 0, unScaledSize[0], unScaledSize[1]); 3466 layout.draw(mCanvas); 3467 mCanvas.setBitmap(null); 3468 layout.setVisibility(visibility); 3469 return b; 3470 } 3471 3472 private void getFinalPositionForDropAnimation(int[] loc, float[] scaleXY, 3473 DragView dragView, CellLayout layout, ItemInfo info, int[] targetCell, boolean scale) { 3474 // Now we animate the dragView, (ie. the widget or shortcut preview) into its final 3475 // location and size on the home screen. 3476 int spanX = info.spanX; 3477 int spanY = info.spanY; 3478 3479 Rect r = estimateItemPosition(layout, targetCell[0], targetCell[1], spanX, spanY); 3480 loc[0] = r.left; 3481 loc[1] = r.top; 3482 3483 setFinalTransitionTransform(layout); 3484 float cellLayoutScale = 3485 mLauncher.getDragLayer().getDescendantCoordRelativeToSelf(layout, loc, true); 3486 resetTransitionTransform(layout); 3487 3488 float dragViewScaleX = 1f; 3489 float dragViewScaleY = 1f; 3490 if (scale) { 3491 float width = info.spanX * layout.mCellWidth; 3492 float height = info.spanY * layout.mCellHeight; 3493 3494 dragViewScaleX = r.width() / width; 3495 dragViewScaleY = r.height() / height; 3496 } 3497 3498 // The animation will scale the dragView about its center, so we need to center about 3499 // the final location. 3500 loc[0] -= (dragView.getMeasuredWidth() - cellLayoutScale * r.width()) / 2 3501 - Math.ceil(layout.getUnusedHorizontalSpace() / 2f); 3502 loc[1] -= (dragView.getMeasuredHeight() - cellLayoutScale * r.height()) / 2; 3503 3504 scaleXY[0] = dragViewScaleX * cellLayoutScale; 3505 scaleXY[1] = dragViewScaleY * cellLayoutScale; 3506 } 3507 3508 public void animateWidgetDrop(ItemInfo info, CellLayout cellLayout, final DragView dragView, 3509 final Runnable onCompleteRunnable, int animationType, final View finalView, 3510 boolean external) { 3511 Rect from = new Rect(); 3512 mLauncher.getDragLayer().getViewRectRelativeToSelf(dragView, from); 3513 3514 int[] finalPos = new int[2]; 3515 float scaleXY[] = new float[2]; 3516 boolean scalePreview = !(info instanceof PendingAddShortcutInfo); 3517 getFinalPositionForDropAnimation(finalPos, scaleXY, dragView, cellLayout, info, mTargetCell, 3518 scalePreview); 3519 3520 Resources res = mLauncher.getResources(); 3521 final int duration = res.getInteger(R.integer.config_dropAnimMaxDuration) - 200; 3522 3523 boolean isWidget = info.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET || 3524 info.itemType == LauncherSettings.Favorites.ITEM_TYPE_CUSTOM_APPWIDGET; 3525 if ((animationType == ANIMATE_INTO_POSITION_AND_RESIZE || external) && finalView != null) { 3526 Bitmap crossFadeBitmap = createWidgetBitmap(info, finalView); 3527 dragView.setCrossFadeBitmap(crossFadeBitmap); 3528 dragView.crossFade((int) (duration * 0.8f)); 3529 } else if (isWidget && external) { 3530 scaleXY[0] = scaleXY[1] = Math.min(scaleXY[0], scaleXY[1]); 3531 } 3532 3533 DragLayer dragLayer = mLauncher.getDragLayer(); 3534 if (animationType == CANCEL_TWO_STAGE_WIDGET_DROP_ANIMATION) { 3535 mLauncher.getDragLayer().animateViewIntoPosition(dragView, finalPos, 0f, 0.1f, 0.1f, 3536 DragLayer.ANIMATION_END_DISAPPEAR, onCompleteRunnable, duration); 3537 } else { 3538 int endStyle; 3539 if (animationType == ANIMATE_INTO_POSITION_AND_REMAIN) { 3540 endStyle = DragLayer.ANIMATION_END_REMAIN_VISIBLE; 3541 } else { 3542 endStyle = DragLayer.ANIMATION_END_DISAPPEAR; 3543 } 3544 3545 Runnable onComplete = new Runnable() { 3546 @Override 3547 public void run() { 3548 if (finalView != null) { 3549 finalView.setVisibility(VISIBLE); 3550 } 3551 if (onCompleteRunnable != null) { 3552 onCompleteRunnable.run(); 3553 } 3554 } 3555 }; 3556 dragLayer.animateViewIntoPosition(dragView, from.left, from.top, finalPos[0], 3557 finalPos[1], 1, 1, 1, scaleXY[0], scaleXY[1], onComplete, endStyle, 3558 duration, this); 3559 } 3560 } 3561 3562 public void setFinalTransitionTransform(CellLayout layout) { 3563 if (isSwitchingState()) { 3564 mCurrentScale = getScaleX(); 3565 setScaleX(mStateTransitionAnimation.getFinalScale()); 3566 setScaleY(mStateTransitionAnimation.getFinalScale()); 3567 } 3568 } 3569 public void resetTransitionTransform(CellLayout layout) { 3570 if (isSwitchingState()) { 3571 setScaleX(mCurrentScale); 3572 setScaleY(mCurrentScale); 3573 } 3574 } 3575 3576 public WorkspaceStateTransitionAnimation getStateTransitionAnimation() { 3577 return mStateTransitionAnimation; 3578 } 3579 3580 /** 3581 * Return the current {@link CellLayout}, correctly picking the destination 3582 * screen while a scroll is in progress. 3583 */ 3584 public CellLayout getCurrentDropLayout() { 3585 return (CellLayout) getChildAt(getNextPage()); 3586 } 3587 3588 /** 3589 * Return the current CellInfo describing our current drag; this method exists 3590 * so that Launcher can sync this object with the correct info when the activity is created/ 3591 * destroyed 3592 * 3593 */ 3594 public CellLayout.CellInfo getDragInfo() { 3595 return mDragInfo; 3596 } 3597 3598 public int getCurrentPageOffsetFromCustomContent() { 3599 return getNextPage() - numCustomPages(); 3600 } 3601 3602 /** 3603 * Calculate the nearest cell where the given object would be dropped. 3604 * 3605 * pixelX and pixelY should be in the coordinate system of layout 3606 */ 3607 @Thunk int[] findNearestArea(int pixelX, int pixelY, 3608 int spanX, int spanY, CellLayout layout, int[] recycle) { 3609 return layout.findNearestArea( 3610 pixelX, pixelY, spanX, spanY, recycle); 3611 } 3612 3613 void setup(DragController dragController) { 3614 mSpringLoadedDragController = new SpringLoadedDragController(mLauncher); 3615 mDragController = dragController; 3616 3617 // hardware layers on children are enabled on startup, but should be disabled until 3618 // needed 3619 updateChildrenLayersEnabled(false); 3620 } 3621 3622 /** 3623 * Called at the end of a drag which originated on the workspace. 3624 */ 3625 public void onDropCompleted(final View target, final DragObject d, 3626 final boolean isFlingToDelete, final boolean success) { 3627 if (mDeferDropAfterUninstall) { 3628 final CellLayout.CellInfo dragInfo = mDragInfo; 3629 mDeferredAction = new Runnable() { 3630 public void run() { 3631 mDragInfo = dragInfo; // Restore the drag info that was cleared in onDragEnd() 3632 onDropCompleted(target, d, isFlingToDelete, success); 3633 mDeferredAction = null; 3634 } 3635 }; 3636 return; 3637 } 3638 3639 boolean beingCalledAfterUninstall = mDeferredAction != null; 3640 3641 if (success && !(beingCalledAfterUninstall && !mUninstallSuccessful)) { 3642 if (target != this && mDragInfo != null) { 3643 removeWorkspaceItem(mDragInfo.cell); 3644 } 3645 } else if (mDragInfo != null) { 3646 final CellLayout cellLayout = mLauncher.getCellLayout( 3647 mDragInfo.container, mDragInfo.screenId); 3648 if (cellLayout != null) { 3649 cellLayout.onDropChild(mDragInfo.cell); 3650 } else if (ProviderConfig.IS_DOGFOOD_BUILD) { 3651 throw new RuntimeException("Invalid state: cellLayout == null in " 3652 + "Workspace#onDropCompleted. Please file a bug. "); 3653 }; 3654 } 3655 if ((d.cancelled || (beingCalledAfterUninstall && !mUninstallSuccessful)) 3656 && mDragInfo.cell != null) { 3657 mDragInfo.cell.setVisibility(VISIBLE); 3658 } 3659 mDragInfo = null; 3660 3661 if (!isFlingToDelete) { 3662 // Fling to delete already exits spring loaded mode after the animation finishes. 3663 mLauncher.exitSpringLoadedDragModeDelayed(success, 3664 Launcher.EXIT_SPRINGLOADED_MODE_SHORT_TIMEOUT, mDelayedResizeRunnable); 3665 mDelayedResizeRunnable = null; 3666 } 3667 } 3668 3669 /** 3670 * For opposite operation. See {@link #addInScreen}. 3671 */ 3672 public void removeWorkspaceItem(View v) { 3673 CellLayout parentCell = getParentCellLayoutForView(v); 3674 if (parentCell != null) { 3675 parentCell.removeView(v); 3676 } else if (ProviderConfig.IS_DOGFOOD_BUILD) { 3677 // When an app is uninstalled using the drop target, we wait until resume to remove 3678 // the icon. We also remove all the corresponding items from the workspace at 3679 // {@link Launcher#bindComponentsRemoved}. That call can come before or after 3680 // {@link Launcher#mOnResumeCallbacks} depending on how busy the worker thread is. 3681 Log.e(TAG, "mDragInfo.cell has null parent"); 3682 } 3683 if (v instanceof DropTarget) { 3684 mDragController.removeDropTarget((DropTarget) v); 3685 } 3686 } 3687 3688 /** 3689 * Removes all folder listeners 3690 */ 3691 public void removeFolderListeners() { 3692 mapOverItems(false, new ItemOperator() { 3693 @Override 3694 public boolean evaluate(ItemInfo info, View view) { 3695 if (view instanceof FolderIcon) { 3696 ((FolderIcon) view).removeListeners(); 3697 } 3698 return false; 3699 } 3700 }); 3701 } 3702 3703 @Override 3704 public void deferCompleteDropAfterUninstallActivity() { 3705 mDeferDropAfterUninstall = true; 3706 } 3707 3708 /// maybe move this into a smaller part 3709 @Override 3710 public void onDragObjectRemoved(boolean success) { 3711 mDeferDropAfterUninstall = false; 3712 mUninstallSuccessful = success; 3713 if (mDeferredAction != null) { 3714 mDeferredAction.run(); 3715 } 3716 } 3717 3718 @Override 3719 public float getIntrinsicIconScaleFactor() { 3720 return 1f; 3721 } 3722 3723 @Override 3724 public boolean supportsAppInfoDropTarget() { 3725 return !FeatureFlags.LAUNCHER3_LEGACY_WORKSPACE_DND; 3726 } 3727 3728 @Override 3729 public boolean supportsDeleteDropTarget() { 3730 return true; 3731 } 3732 3733 public boolean isDropEnabled() { 3734 return true; 3735 } 3736 3737 @Override 3738 protected void dispatchRestoreInstanceState(SparseArray<Parcelable> container) { 3739 // We don't dispatch restoreInstanceState to our children using this code path. 3740 // Some pages will be restored immediately as their items are bound immediately, and 3741 // others we will need to wait until after their items are bound. 3742 mSavedStates = container; 3743 } 3744 3745 public void restoreInstanceStateForChild(int child) { 3746 if (mSavedStates != null) { 3747 mRestoredPages.add(child); 3748 CellLayout cl = (CellLayout) getChildAt(child); 3749 if (cl != null) { 3750 cl.restoreInstanceState(mSavedStates); 3751 } 3752 } 3753 } 3754 3755 public void restoreInstanceStateForRemainingPages() { 3756 int count = getChildCount(); 3757 for (int i = 0; i < count; i++) { 3758 if (!mRestoredPages.contains(i)) { 3759 restoreInstanceStateForChild(i); 3760 } 3761 } 3762 mRestoredPages.clear(); 3763 mSavedStates = null; 3764 } 3765 3766 @Override 3767 public void scrollLeft() { 3768 if (!workspaceInModalState() && !mIsSwitchingState) { 3769 super.scrollLeft(); 3770 } 3771 Folder openFolder = Folder.getOpen(mLauncher); 3772 if (openFolder != null) { 3773 openFolder.completeDragExit(); 3774 } 3775 } 3776 3777 @Override 3778 public void scrollRight() { 3779 if (!workspaceInModalState() && !mIsSwitchingState) { 3780 super.scrollRight(); 3781 } 3782 Folder openFolder = Folder.getOpen(mLauncher); 3783 if (openFolder != null) { 3784 openFolder.completeDragExit(); 3785 } 3786 } 3787 3788 @Override 3789 public boolean onEnterScrollArea(int x, int y, int direction) { 3790 // Ignore the scroll area if we are dragging over the hot seat 3791 boolean isPortrait = !mLauncher.getDeviceProfile().isLandscape; 3792 if (mLauncher.getHotseat() != null && isPortrait) { 3793 Rect r = new Rect(); 3794 mLauncher.getHotseat().getHitRect(r); 3795 if (r.contains(x, y)) { 3796 return false; 3797 } 3798 } 3799 3800 boolean result = false; 3801 if (!workspaceInModalState() && !mIsSwitchingState && Folder.getOpen(mLauncher) == null) { 3802 mInScrollArea = true; 3803 3804 final int page = getNextPage() + 3805 (direction == DragController.SCROLL_LEFT ? -1 : 1); 3806 // We always want to exit the current layout to ensure parity of enter / exit 3807 setCurrentDropLayout(null); 3808 3809 if (0 <= page && page < getChildCount()) { 3810 // Ensure that we are not dragging over to the custom content screen 3811 if (getScreenIdForPageIndex(page) == CUSTOM_CONTENT_SCREEN_ID) { 3812 return false; 3813 } 3814 3815 CellLayout layout = (CellLayout) getChildAt(page); 3816 setCurrentDragOverlappingLayout(layout); 3817 3818 // Workspace is responsible for drawing the edge glow on adjacent pages, 3819 // so we need to redraw the workspace when this may have changed. 3820 invalidate(); 3821 result = true; 3822 } 3823 } 3824 return result; 3825 } 3826 3827 @Override 3828 public boolean onExitScrollArea() { 3829 boolean result = false; 3830 if (mInScrollArea) { 3831 invalidate(); 3832 CellLayout layout = getCurrentDropLayout(); 3833 setCurrentDropLayout(layout); 3834 setCurrentDragOverlappingLayout(layout); 3835 3836 result = true; 3837 mInScrollArea = false; 3838 } 3839 return result; 3840 } 3841 3842 private void onResetScrollArea() { 3843 setCurrentDragOverlappingLayout(null); 3844 mInScrollArea = false; 3845 } 3846 3847 /** 3848 * Returns a specific CellLayout 3849 */ 3850 CellLayout getParentCellLayoutForView(View v) { 3851 ArrayList<CellLayout> layouts = getWorkspaceAndHotseatCellLayouts(); 3852 for (CellLayout layout : layouts) { 3853 if (layout.getShortcutsAndWidgets().indexOfChild(v) > -1) { 3854 return layout; 3855 } 3856 } 3857 return null; 3858 } 3859 3860 /** 3861 * Returns a list of all the CellLayouts in the workspace. 3862 */ 3863 ArrayList<CellLayout> getWorkspaceAndHotseatCellLayouts() { 3864 ArrayList<CellLayout> layouts = new ArrayList<CellLayout>(); 3865 int screenCount = getChildCount(); 3866 for (int screen = 0; screen < screenCount; screen++) { 3867 layouts.add(((CellLayout) getChildAt(screen))); 3868 } 3869 if (mLauncher.getHotseat() != null) { 3870 layouts.add(mLauncher.getHotseat().getLayout()); 3871 } 3872 return layouts; 3873 } 3874 3875 /** 3876 * We should only use this to search for specific children. Do not use this method to modify 3877 * ShortcutsAndWidgetsContainer directly. Includes ShortcutAndWidgetContainers from 3878 * the hotseat and workspace pages 3879 */ 3880 ArrayList<ShortcutAndWidgetContainer> getAllShortcutAndWidgetContainers() { 3881 ArrayList<ShortcutAndWidgetContainer> childrenLayouts = new ArrayList<>(); 3882 int screenCount = getChildCount(); 3883 for (int screen = 0; screen < screenCount; screen++) { 3884 childrenLayouts.add(((CellLayout) getChildAt(screen)).getShortcutsAndWidgets()); 3885 } 3886 if (mLauncher.getHotseat() != null) { 3887 childrenLayouts.add(mLauncher.getHotseat().getLayout().getShortcutsAndWidgets()); 3888 } 3889 return childrenLayouts; 3890 } 3891 3892 public View getHomescreenIconByItemId(final long id) { 3893 return getFirstMatch(new ItemOperator() { 3894 3895 @Override 3896 public boolean evaluate(ItemInfo info, View v) { 3897 return info != null && info.id == id; 3898 } 3899 }); 3900 } 3901 3902 public View getViewForTag(final Object tag) { 3903 return getFirstMatch(new ItemOperator() { 3904 3905 @Override 3906 public boolean evaluate(ItemInfo info, View v) { 3907 return info == tag; 3908 } 3909 }); 3910 } 3911 3912 public LauncherAppWidgetHostView getWidgetForAppWidgetId(final int appWidgetId) { 3913 return (LauncherAppWidgetHostView) getFirstMatch(new ItemOperator() { 3914 3915 @Override 3916 public boolean evaluate(ItemInfo info, View v) { 3917 return (info instanceof LauncherAppWidgetInfo) && 3918 ((LauncherAppWidgetInfo) info).appWidgetId == appWidgetId; 3919 } 3920 }); 3921 } 3922 3923 public View getFirstMatch(final ItemOperator operator) { 3924 final View[] value = new View[1]; 3925 mapOverItems(MAP_NO_RECURSE, new ItemOperator() { 3926 @Override 3927 public boolean evaluate(ItemInfo info, View v) { 3928 if (operator.evaluate(info, v)) { 3929 value[0] = v; 3930 return true; 3931 } 3932 return false; 3933 } 3934 }); 3935 return value[0]; 3936 } 3937 3938 void clearDropTargets() { 3939 mapOverItems(MAP_NO_RECURSE, new ItemOperator() { 3940 @Override 3941 public boolean evaluate(ItemInfo info, View v) { 3942 if (v instanceof DropTarget) { 3943 mDragController.removeDropTarget((DropTarget) v); 3944 } 3945 // not done, process all the shortcuts 3946 return false; 3947 } 3948 }); 3949 } 3950 3951 /** 3952 * Removes items that match the {@param matcher}. When applications are removed 3953 * as a part of an update, this is called to ensure that other widgets and application 3954 * shortcuts are not removed. 3955 */ 3956 public void removeItemsByMatcher(final ItemInfoMatcher matcher) { 3957 ArrayList<CellLayout> cellLayouts = getWorkspaceAndHotseatCellLayouts(); 3958 for (final CellLayout layoutParent: cellLayouts) { 3959 final ViewGroup layout = layoutParent.getShortcutsAndWidgets(); 3960 3961 LongArrayMap<View> idToViewMap = new LongArrayMap<>(); 3962 ArrayList<ItemInfo> items = new ArrayList<>(); 3963 for (int j = 0; j < layout.getChildCount(); j++) { 3964 final View view = layout.getChildAt(j); 3965 if (view.getTag() instanceof ItemInfo) { 3966 ItemInfo item = (ItemInfo) view.getTag(); 3967 items.add(item); 3968 idToViewMap.put(item.id, view); 3969 } 3970 } 3971 3972 for (ItemInfo itemToRemove : matcher.filterItemInfos(items)) { 3973 View child = idToViewMap.get(itemToRemove.id); 3974 3975 if (child != null) { 3976 // Note: We can not remove the view directly from CellLayoutChildren as this 3977 // does not re-mark the spaces as unoccupied. 3978 layoutParent.removeViewInLayout(child); 3979 if (child instanceof DropTarget) { 3980 mDragController.removeDropTarget((DropTarget) child); 3981 } 3982 } else if (itemToRemove.container >= 0) { 3983 // The item may belong to a folder. 3984 View parent = idToViewMap.get(itemToRemove.container); 3985 if (parent != null) { 3986 ((FolderInfo) parent.getTag()).remove((ShortcutInfo) itemToRemove, false); 3987 } 3988 } 3989 } 3990 } 3991 3992 // Strip all the empty screens 3993 stripEmptyScreens(); 3994 } 3995 3996 public interface ItemOperator { 3997 /** 3998 * Process the next itemInfo, possibly with side-effect on the next item. 3999 * 4000 * @param info info for the shortcut 4001 * @param view view for the shortcut 4002 * @return true if done, false to continue the map 4003 */ 4004 public boolean evaluate(ItemInfo info, View view); 4005 } 4006 4007 /** 4008 * Map the operator over the shortcuts and widgets, return the first-non-null value. 4009 * 4010 * @param recurse true: iterate over folder children. false: op get the folders themselves. 4011 * @param op the operator to map over the shortcuts 4012 */ 4013 void mapOverItems(boolean recurse, ItemOperator op) { 4014 ArrayList<ShortcutAndWidgetContainer> containers = getAllShortcutAndWidgetContainers(); 4015 final int containerCount = containers.size(); 4016 for (int containerIdx = 0; containerIdx < containerCount; containerIdx++) { 4017 ShortcutAndWidgetContainer container = containers.get(containerIdx); 4018 // map over all the shortcuts on the workspace 4019 final int itemCount = container.getChildCount(); 4020 for (int itemIdx = 0; itemIdx < itemCount; itemIdx++) { 4021 View item = container.getChildAt(itemIdx); 4022 ItemInfo info = (ItemInfo) item.getTag(); 4023 if (recurse && info instanceof FolderInfo && item instanceof FolderIcon) { 4024 FolderIcon folder = (FolderIcon) item; 4025 ArrayList<View> folderChildren = folder.getFolder().getItemsInReadingOrder(); 4026 // map over all the children in the folder 4027 final int childCount = folderChildren.size(); 4028 for (int childIdx = 0; childIdx < childCount; childIdx++) { 4029 View child = folderChildren.get(childIdx); 4030 info = (ItemInfo) child.getTag(); 4031 if (op.evaluate(info, child)) { 4032 return; 4033 } 4034 } 4035 } else { 4036 if (op.evaluate(info, item)) { 4037 return; 4038 } 4039 } 4040 } 4041 } 4042 } 4043 4044 void updateShortcuts(ArrayList<ShortcutInfo> shortcuts) { 4045 int total = shortcuts.size(); 4046 final HashSet<ShortcutInfo> updates = new HashSet<ShortcutInfo>(total); 4047 final HashSet<Long> folderIds = new HashSet<>(); 4048 4049 for (int i = 0; i < total; i++) { 4050 ShortcutInfo s = shortcuts.get(i); 4051 updates.add(s); 4052 folderIds.add(s.container); 4053 } 4054 4055 mapOverItems(MAP_RECURSE, new ItemOperator() { 4056 @Override 4057 public boolean evaluate(ItemInfo info, View v) { 4058 if (info instanceof ShortcutInfo && v instanceof BubbleTextView && 4059 updates.contains(info)) { 4060 ShortcutInfo si = (ShortcutInfo) info; 4061 BubbleTextView shortcut = (BubbleTextView) v; 4062 Drawable oldIcon = getTextViewIcon(shortcut); 4063 boolean oldPromiseState = (oldIcon instanceof PreloadIconDrawable) 4064 && ((PreloadIconDrawable) oldIcon).hasNotCompleted(); 4065 shortcut.applyFromShortcutInfo(si, mIconCache, 4066 si.isPromise() != oldPromiseState); 4067 } 4068 // process all the shortcuts 4069 return false; 4070 } 4071 }); 4072 4073 // Update folder icons 4074 mapOverItems(MAP_NO_RECURSE, new ItemOperator() { 4075 @Override 4076 public boolean evaluate(ItemInfo info, View v) { 4077 if (info instanceof FolderInfo && folderIds.contains(info.id)) { 4078 ((FolderInfo) info).itemsChanged(false); 4079 } 4080 // process all the shortcuts 4081 return false; 4082 } 4083 }); 4084 } 4085 4086 public void removeAbandonedPromise(String packageName, UserHandleCompat user) { 4087 HashSet<String> packages = new HashSet<>(1); 4088 packages.add(packageName); 4089 ItemInfoMatcher matcher = ItemInfoMatcher.ofPackages(packages, user); 4090 LauncherModel.deleteItemsFromDatabase(mLauncher, matcher); 4091 removeItemsByMatcher(matcher); 4092 } 4093 4094 public void updateRestoreItems(final HashSet<ItemInfo> updates) { 4095 mapOverItems(MAP_RECURSE, new ItemOperator() { 4096 @Override 4097 public boolean evaluate(ItemInfo info, View v) { 4098 if (info instanceof ShortcutInfo && v instanceof BubbleTextView 4099 && updates.contains(info)) { 4100 ((BubbleTextView) v).applyState(false); 4101 } else if (v instanceof PendingAppWidgetHostView 4102 && info instanceof LauncherAppWidgetInfo 4103 && updates.contains(info)) { 4104 ((PendingAppWidgetHostView) v).applyState(); 4105 } 4106 // process all the shortcuts 4107 return false; 4108 } 4109 }); 4110 } 4111 4112 public void widgetsRestored(final ArrayList<LauncherAppWidgetInfo> changedInfo) { 4113 if (!changedInfo.isEmpty()) { 4114 DeferredWidgetRefresh widgetRefresh = new DeferredWidgetRefresh(changedInfo, 4115 mLauncher.getAppWidgetHost()); 4116 4117 LauncherAppWidgetInfo item = changedInfo.get(0); 4118 final AppWidgetProviderInfo widgetInfo; 4119 if (item.hasRestoreFlag(LauncherAppWidgetInfo.FLAG_ID_NOT_VALID)) { 4120 widgetInfo = AppWidgetManagerCompat 4121 .getInstance(mLauncher).findProvider(item.providerName, item.user); 4122 } else { 4123 widgetInfo = AppWidgetManagerCompat.getInstance(mLauncher) 4124 .getAppWidgetInfo(item.appWidgetId); 4125 } 4126 4127 if (widgetInfo != null) { 4128 // Re-inflate the widgets which have changed status 4129 widgetRefresh.run(); 4130 } else { 4131 // widgetRefresh will automatically run when the packages are updated. 4132 // For now just update the progress bars 4133 mapOverItems(MAP_NO_RECURSE, new ItemOperator() { 4134 @Override 4135 public boolean evaluate(ItemInfo info, View view) { 4136 if (view instanceof PendingAppWidgetHostView 4137 && changedInfo.contains(info)) { 4138 ((LauncherAppWidgetInfo) info).installProgress = 100; 4139 ((PendingAppWidgetHostView) view).applyState(); 4140 } 4141 // process all the shortcuts 4142 return false; 4143 } 4144 }); 4145 } 4146 } 4147 } 4148 4149 private void moveToScreen(int page, boolean animate) { 4150 if (!workspaceInModalState()) { 4151 if (animate) { 4152 snapToPage(page); 4153 } else { 4154 setCurrentPage(page); 4155 } 4156 } 4157 View child = getChildAt(page); 4158 if (child != null) { 4159 child.requestFocus(); 4160 } 4161 } 4162 4163 void moveToDefaultScreen(boolean animate) { 4164 moveToScreen(getDefaultPage(), animate); 4165 } 4166 4167 void moveToCustomContentScreen(boolean animate) { 4168 if (hasCustomContent()) { 4169 int ccIndex = getPageIndexForScreenId(CUSTOM_CONTENT_SCREEN_ID); 4170 if (animate) { 4171 snapToPage(ccIndex); 4172 } else { 4173 setCurrentPage(ccIndex); 4174 } 4175 View child = getChildAt(ccIndex); 4176 if (child != null) { 4177 child.requestFocus(); 4178 } 4179 } 4180 exitWidgetResizeMode(); 4181 } 4182 4183 @Override 4184 protected String getPageIndicatorDescription() { 4185 return getResources().getString(R.string.all_apps_button_label); 4186 } 4187 4188 @Override 4189 protected String getCurrentPageDescription() { 4190 if (hasCustomContent() && getNextPage() == 0) { 4191 return mCustomContentDescription; 4192 } 4193 int page = (mNextPage != INVALID_PAGE) ? mNextPage : mCurrentPage; 4194 return getPageDescription(page); 4195 } 4196 4197 private String getPageDescription(int page) { 4198 int delta = numCustomPages(); 4199 int nScreens = getChildCount() - delta; 4200 int extraScreenId = mScreenOrder.indexOf(EXTRA_EMPTY_SCREEN_ID); 4201 if (extraScreenId >= 0 && nScreens > 1) { 4202 if (page == extraScreenId) { 4203 return getContext().getString(R.string.workspace_new_page); 4204 } 4205 nScreens--; 4206 } 4207 if (nScreens == 0) { 4208 // When the workspace is not loaded, we do not know how many screen will be bound. 4209 return getContext().getString(R.string.all_apps_home_button_label); 4210 } 4211 return getContext().getString(R.string.workspace_scroll_format, 4212 page + 1 - delta, nScreens); 4213 } 4214 4215 @Override 4216 public void fillInLogContainerData(View v, ItemInfo info, Target target, Target targetParent) { 4217 target.gridX = info.cellX; 4218 target.gridY = info.cellY; 4219 target.pageIndex = getCurrentPage(); 4220 targetParent.containerType = LauncherLogProto.WORKSPACE; 4221 if (info.container == LauncherSettings.Favorites.CONTAINER_HOTSEAT) { 4222 target.rank = info.rank; 4223 targetParent.containerType = LauncherLogProto.HOTSEAT; 4224 } else if (info.container >= 0) { 4225 targetParent.containerType = LauncherLogProto.FOLDER; 4226 } 4227 } 4228 4229 /** 4230 * Used as a workaround to ensure that the AppWidgetService receives the 4231 * PACKAGE_ADDED broadcast before updating widgets. 4232 */ 4233 private class DeferredWidgetRefresh implements Runnable { 4234 private final ArrayList<LauncherAppWidgetInfo> mInfos; 4235 private final LauncherAppWidgetHost mHost; 4236 private final Handler mHandler; 4237 4238 private boolean mRefreshPending; 4239 4240 public DeferredWidgetRefresh(ArrayList<LauncherAppWidgetInfo> infos, 4241 LauncherAppWidgetHost host) { 4242 mInfos = infos; 4243 mHost = host; 4244 mHandler = new Handler(); 4245 mRefreshPending = true; 4246 4247 mHost.addProviderChangeListener(this); 4248 // Force refresh after 10 seconds, if we don't get the provider changed event. 4249 // This could happen when the provider is no longer available in the app. 4250 mHandler.postDelayed(this, 10000); 4251 } 4252 4253 @Override 4254 public void run() { 4255 mHost.removeProviderChangeListener(this); 4256 mHandler.removeCallbacks(this); 4257 4258 if (!mRefreshPending) { 4259 return; 4260 } 4261 4262 mRefreshPending = false; 4263 4264 mapOverItems(MAP_NO_RECURSE, new ItemOperator() { 4265 @Override 4266 public boolean evaluate(ItemInfo info, View view) { 4267 if (view instanceof PendingAppWidgetHostView && mInfos.contains(info)) { 4268 mLauncher.removeItem(view, info, false /* deleteFromDb */); 4269 mLauncher.bindAppWidget((LauncherAppWidgetInfo) info); 4270 } 4271 // process all the shortcuts 4272 return false; 4273 } 4274 }); 4275 } 4276 } 4277 4278 public interface OnStateChangeListener { 4279 4280 /** 4281 * Called when the workspace state is changing. 4282 * @param toState final state 4283 * @param targetAnim animation which will be played during the transition or null. 4284 */ 4285 void prepareStateChange(State toState, AnimatorSet targetAnim); 4286 } 4287 4288 public static final boolean isQsbContainerPage(int pageNo) { 4289 return pageNo == 0; 4290 } 4291 4292 private class StateTransitionListener extends AnimatorListenerAdapter 4293 implements AnimatorUpdateListener { 4294 @Override 4295 public void onAnimationUpdate(ValueAnimator anim) { 4296 mTransitionProgress = anim.getAnimatedFraction(); 4297 } 4298 4299 @Override 4300 public void onAnimationStart(Animator animation) { 4301 if (mState == State.SPRING_LOADED) { 4302 // Show the page indicator at the same time as the rest of the transition. 4303 showPageIndicatorAtCurrentScroll(); 4304 } 4305 mTransitionProgress = 0; 4306 } 4307 4308 @Override 4309 public void onAnimationEnd(Animator animation) { 4310 onEndStateTransition(); 4311 } 4312 } 4313} 4314