Workspace.java revision 18a1b5da360fcd9b371bea2a9cbd06085c698d8c
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.os.UserHandle; 42import android.util.AttributeSet; 43import android.util.Log; 44import android.util.Property; 45import android.util.SparseArray; 46import android.view.MotionEvent; 47import android.view.View; 48import android.view.ViewDebug; 49import android.view.ViewGroup; 50import android.view.accessibility.AccessibilityManager; 51import android.view.animation.DecelerateInterpolator; 52import android.view.animation.Interpolator; 53import android.widget.TextView; 54import android.widget.Toast; 55 56import com.android.launcher3.Launcher.CustomContentCallbacks; 57import com.android.launcher3.Launcher.LauncherOverlay; 58import com.android.launcher3.UninstallDropTarget.DropTargetSource; 59import com.android.launcher3.accessibility.AccessibleDragListenerAdapter; 60import com.android.launcher3.accessibility.OverviewAccessibilityDelegate; 61import com.android.launcher3.accessibility.OverviewScreenAccessibilityDelegate; 62import com.android.launcher3.accessibility.WorkspaceAccessibilityHelper; 63import com.android.launcher3.anim.AnimationLayerSet; 64import com.android.launcher3.compat.AppWidgetManagerCompat; 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.DragView; 71import com.android.launcher3.dragndrop.SpringLoadedDragController; 72import com.android.launcher3.folder.Folder; 73import com.android.launcher3.folder.FolderIcon; 74import com.android.launcher3.graphics.DragPreviewProvider; 75import com.android.launcher3.popup.PopupContainerWithArrow; 76import com.android.launcher3.userevent.nano.LauncherLogProto.ContainerType; 77import com.android.launcher3.userevent.nano.LauncherLogProto.Target; 78import com.android.launcher3.util.ItemInfoMatcher; 79import com.android.launcher3.util.LongArrayMap; 80import com.android.launcher3.util.MultiStateAlphaController; 81import com.android.launcher3.util.PackageUserKey; 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; 90import java.util.Set; 91 92/** 93 * The workspace is a wide area with a wallpaper and a finite number of pages. 94 * Each page contains a number of icons, folders or widgets the user can 95 * interact with. A workspace is meant to be used with a fixed width only. 96 */ 97public class Workspace extends PagedView 98 implements DropTarget, DragSource, View.OnTouchListener, 99 DragController.DragListener, ViewGroup.OnHierarchyChangeListener, 100 Insettable, DropTargetSource { 101 private static final String TAG = "Launcher.Workspace"; 102 103 /** The value that {@link #mTransitionProgress} must be greater than for 104 * {@link #transitionStateShouldAllowDrop()} to return true. */ 105 private static final float ALLOW_DROP_TRANSITION_PROGRESS = 0.25f; 106 107 /** The value that {@link #mTransitionProgress} must be greater than for 108 * {@link #isFinishedSwitchingState()} ()} to return true. */ 109 private static final float FINISHED_SWITCHING_STATE_TRANSITION_PROGRESS = 0.5f; 110 111 private static boolean ENFORCE_DRAG_EVENT_ORDER = false; 112 113 private static final int SNAP_OFF_EMPTY_SCREEN_DURATION = 400; 114 private static final int FADE_EMPTY_SCREEN_DURATION = 150; 115 116 private static final int ADJACENT_SCREEN_DROP_DURATION = 300; 117 118 private static final boolean MAP_NO_RECURSE = false; 119 private static final boolean MAP_RECURSE = true; 120 121 // The screen id used for the empty screen always present to the right. 122 public static final long EXTRA_EMPTY_SCREEN_ID = -201; 123 // The is the first screen. It is always present, even if its empty. 124 public static final long FIRST_SCREEN_ID = 0; 125 126 private final static long CUSTOM_CONTENT_SCREEN_ID = -301; 127 128 private static final long CUSTOM_CONTENT_GESTURE_DELAY = 200; 129 private long mTouchDownTime = -1; 130 private long mCustomContentShowTime = -1; 131 132 private LayoutTransition mLayoutTransition; 133 @Thunk final WallpaperManager mWallpaperManager; 134 135 private ShortcutAndWidgetContainer mDragSourceInternal; 136 137 @Thunk LongArrayMap<CellLayout> mWorkspaceScreens = new LongArrayMap<>(); 138 @Thunk ArrayList<Long> mScreenOrder = new ArrayList<Long>(); 139 140 @Thunk Runnable mRemoveEmptyScreenRunnable; 141 @Thunk boolean mDeferRemoveExtraEmptyScreen = false; 142 143 /** 144 * CellInfo for the cell that is currently being dragged 145 */ 146 private CellLayout.CellInfo mDragInfo; 147 148 /** 149 * Target drop area calculated during last acceptDrop call. 150 */ 151 @Thunk int[] mTargetCell = new int[2]; 152 private int mDragOverX = -1; 153 private int mDragOverY = -1; 154 155 CustomContentCallbacks mCustomContentCallbacks; 156 boolean mCustomContentShowing; 157 private float mLastCustomContentScrollProgress = -1f; 158 private String mCustomContentDescription = ""; 159 160 /** 161 * The CellLayout that is currently being dragged over 162 */ 163 @Thunk CellLayout mDragTargetLayout = null; 164 /** 165 * The CellLayout that we will show as highlighted 166 */ 167 private CellLayout mDragOverlappingLayout = null; 168 169 /** 170 * The CellLayout which will be dropped to 171 */ 172 private CellLayout mDropToLayout = null; 173 174 @Thunk Launcher mLauncher; 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[] mTempTouchCoordinates = 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, ContainerType.WORKSPACE), 193 NORMAL_HIDDEN (false, false, ContainerType.ALLAPPS), 194 SPRING_LOADED (false, true, ContainerType.WORKSPACE), 195 OVERVIEW (true, true, ContainerType.OVERVIEW), 196 OVERVIEW_HIDDEN (true, false, ContainerType.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 private DragPreviewProvider mOutlineProvider = null; 252 private boolean mWorkspaceFadeInAdjacentScreens; 253 254 final WallpaperOffsetInterpolator mWallpaperOffset; 255 private boolean mUnlockWallpaperFromDefaultPageOnLayout; 256 257 @Thunk Runnable mDelayedResizeRunnable; 258 private Runnable mDelayedSnapToPageRunnable; 259 260 // Variables relating to the creation of user folders by hovering shortcuts over shortcuts 261 private static final int FOLDER_CREATION_TIMEOUT = 0; 262 public static final int REORDER_TIMEOUT = 350; 263 private final Alarm mFolderCreationAlarm = new Alarm(); 264 private final Alarm mReorderAlarm = new Alarm(); 265 private FolderIcon.PreviewBackground mFolderCreateBg; 266 private FolderIcon mDragOverFolderIcon = null; 267 private boolean mCreateUserFolderOnDrop = false; 268 private boolean mAddToExistingFolderOnDrop = false; 269 private float mMaxDistanceForFolderCreation; 270 271 private final Canvas mCanvas = new Canvas(); 272 273 // Variables relating to touch disambiguation (scrolling workspace vs. scrolling a widget) 274 private float mXDown; 275 private float mYDown; 276 final static float START_DAMPING_TOUCH_SLOP_ANGLE = (float) Math.PI / 6; 277 final static float MAX_SWIPE_ANGLE = (float) Math.PI / 3; 278 final static float TOUCH_SLOP_DAMPING_FACTOR = 4; 279 280 // Relating to the animation of items being dropped externally 281 public static final int ANIMATE_INTO_POSITION_AND_DISAPPEAR = 0; 282 public static final int ANIMATE_INTO_POSITION_AND_REMAIN = 1; 283 public static final int ANIMATE_INTO_POSITION_AND_RESIZE = 2; 284 public static final int COMPLETE_TWO_STAGE_WIDGET_DROP_ANIMATION = 3; 285 public static final int CANCEL_TWO_STAGE_WIDGET_DROP_ANIMATION = 4; 286 287 // Related to dragging, folder creation and reordering 288 private static final int DRAG_MODE_NONE = 0; 289 private static final int DRAG_MODE_CREATE_FOLDER = 1; 290 private static final int DRAG_MODE_ADD_TO_FOLDER = 2; 291 private static final int DRAG_MODE_REORDER = 3; 292 private int mDragMode = DRAG_MODE_NONE; 293 @Thunk int mLastReorderX = -1; 294 @Thunk int mLastReorderY = -1; 295 296 private SparseArray<Parcelable> mSavedStates; 297 private final ArrayList<Integer> mRestoredPages = new ArrayList<Integer>(); 298 299 private float mCurrentScale; 300 private float mTransitionProgress; 301 302 @Thunk Runnable mDeferredAction; 303 private boolean mDeferDropAfterUninstall; 304 private boolean mUninstallSuccessful; 305 306 // State related to Launcher Overlay 307 LauncherOverlay mLauncherOverlay; 308 boolean mScrollInteractionBegan; 309 boolean mStartedSendingScrollEvents; 310 float mLastOverlayScroll = 0; 311 // Total over scrollX in the overlay direction. 312 private int mUnboundedScrollX; 313 private boolean mForceDrawAdjacentPages = false; 314 // Total over scrollX in the overlay direction. 315 private float mOverlayTranslation; 316 private int mFirstPageScrollX; 317 private boolean mIgnoreQsbScroll; 318 319 // Handles workspace state transitions 320 private WorkspaceStateTransitionAnimation mStateTransitionAnimation; 321 322 private AccessibilityDelegate mPagesAccessibilityDelegate; 323 private OnStateChangeListener mOnStateChangeListener; 324 325 /** 326 * Used to inflate the Workspace from XML. 327 * 328 * @param context The application's context. 329 * @param attrs The attributes set containing the Workspace's customization values. 330 */ 331 public Workspace(Context context, AttributeSet attrs) { 332 this(context, attrs, 0); 333 } 334 335 /** 336 * Used to inflate the Workspace from XML. 337 * 338 * @param context The application's context. 339 * @param attrs The attributes set containing the Workspace's customization values. 340 * @param defStyle Unused. 341 */ 342 public Workspace(Context context, AttributeSet attrs, int defStyle) { 343 super(context, attrs, defStyle); 344 345 mLauncher = Launcher.getLauncher(context); 346 mStateTransitionAnimation = new WorkspaceStateTransitionAnimation(mLauncher, this); 347 final Resources res = getResources(); 348 DeviceProfile grid = mLauncher.getDeviceProfile(); 349 mWorkspaceFadeInAdjacentScreens = grid.shouldFadeAdjacentWorkspaceScreens(); 350 mWallpaperManager = WallpaperManager.getInstance(context); 351 352 mWallpaperOffset = new WallpaperOffsetInterpolator(this); 353 mOverviewModeShrinkFactor = 354 res.getInteger(R.integer.config_workspaceOverviewShrinkPercentage) / 100f; 355 356 setOnHierarchyChangeListener(this); 357 setHapticFeedbackEnabled(false); 358 359 initWorkspace(); 360 361 // Disable multitouch across the workspace/all apps/customize tray 362 setMotionEventSplittingEnabled(true); 363 } 364 365 @Override 366 public void setInsets(Rect insets) { 367 mInsets.set(insets); 368 369 CellLayout customScreen = getScreenWithId(CUSTOM_CONTENT_SCREEN_ID); 370 if (customScreen != null) { 371 View customContent = customScreen.getShortcutsAndWidgets().getChildAt(0); 372 if (customContent instanceof Insettable) { 373 ((Insettable) customContent).setInsets(mInsets); 374 } 375 } 376 } 377 378 public void setOnStateChangeListener(OnStateChangeListener listener) { 379 mOnStateChangeListener = listener; 380 } 381 382 /** 383 * Estimates the size of an item using spans: hSpan, vSpan. 384 * 385 * @param springLoaded True if we are in spring loaded mode. 386 * @param unscaledSize True if caller wants to return the unscaled size 387 * @return MAX_VALUE for each dimension if unsuccessful. 388 */ 389 public int[] estimateItemSize(ItemInfo itemInfo, boolean springLoaded, boolean unscaledSize) { 390 float shrinkFactor = mLauncher.getDeviceProfile().workspaceSpringLoadShrinkFactor; 391 int[] size = new int[2]; 392 if (getChildCount() > 0) { 393 // Use the first non-custom page to estimate the child position 394 CellLayout cl = (CellLayout) getChildAt(numCustomPages()); 395 boolean isWidget = itemInfo.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET; 396 397 Rect r = estimateItemPosition(cl, 0, 0, itemInfo.spanX, itemInfo.spanY); 398 399 float scale = 1; 400 if (isWidget) { 401 DeviceProfile profile = mLauncher.getDeviceProfile(); 402 scale = Utilities.shrinkRect(r, profile.appWidgetScale.x, profile.appWidgetScale.y); 403 } 404 size[0] = r.width(); 405 size[1] = r.height(); 406 407 if (isWidget && unscaledSize) { 408 size[0] /= scale; 409 size[1] /= scale; 410 } 411 412 if (springLoaded) { 413 size[0] *= shrinkFactor; 414 size[1] *= shrinkFactor; 415 } 416 return size; 417 } else { 418 size[0] = Integer.MAX_VALUE; 419 size[1] = Integer.MAX_VALUE; 420 return size; 421 } 422 } 423 424 public Rect estimateItemPosition(CellLayout cl, int hCell, int vCell, int hSpan, int vSpan) { 425 Rect r = new Rect(); 426 cl.cellToRect(hCell, vCell, hSpan, vSpan, r); 427 return r; 428 } 429 430 @Override 431 public void onDragStart(DropTarget.DragObject dragObject, DragOptions options) { 432 if (ENFORCE_DRAG_EVENT_ORDER) { 433 enforceDragParity("onDragStart", 0, 0); 434 } 435 436 if (mDragInfo != null && mDragInfo.cell != null) { 437 CellLayout layout = (CellLayout) mDragInfo.cell.getParent().getParent(); 438 layout.markCellsAsUnoccupiedForView(mDragInfo.cell); 439 } 440 441 if (mOutlineProvider != null) { 442 // The outline is used to visualize where the item will land if dropped 443 mOutlineProvider.generateDragOutline(mCanvas); 444 } 445 446 updateChildrenLayersEnabled(false); 447 mLauncher.onDragStarted(); 448 mLauncher.lockScreenOrientation(); 449 mLauncher.onInteractionBegin(); 450 // Prevent any Un/InstallShortcutReceivers from updating the db while we are dragging 451 InstallShortcutReceiver.enableInstallQueue(); 452 453 // Do not add a new page if it is a accessible drag which was not started by the workspace. 454 // We do not support accessibility drag from other sources and instead provide a direct 455 // action for move/add to homescreen. 456 // When a accessible drag is started by the folder, we only allow rearranging withing the 457 // folder. 458 boolean addNewPage = !(options.isAccessibleDrag && dragObject.dragSource != this); 459 460 if (addNewPage) { 461 mDeferRemoveExtraEmptyScreen = false; 462 addExtraEmptyScreenOnDrag(); 463 464 if (dragObject.dragInfo.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET 465 && dragObject.dragSource != this) { 466 // When dragging a widget from different source, move to a page which has 467 // enough space to place this widget (after rearranging/resizing). We special case 468 // widgets as they cannot be placed inside a folder. 469 // Start at the current page and search right (on LTR) until finding a page with 470 // enough space. Since an empty screen is the furthest right, a page must be found. 471 int currentPage = getPageNearestToCenterOfScreen(); 472 for (int pageIndex = currentPage; pageIndex < getPageCount(); pageIndex++) { 473 CellLayout page = (CellLayout) getPageAt(pageIndex); 474 if (page.hasReorderSolution(dragObject.dragInfo)) { 475 setCurrentPage(pageIndex); 476 break; 477 } 478 } 479 } 480 } 481 482 // Always enter the spring loaded mode 483 mLauncher.enterSpringLoadedDragMode(); 484 } 485 486 public void deferRemoveExtraEmptyScreen() { 487 mDeferRemoveExtraEmptyScreen = true; 488 } 489 490 @Override 491 public void onDragEnd() { 492 if (ENFORCE_DRAG_EVENT_ORDER) { 493 enforceDragParity("onDragEnd", 0, 0); 494 } 495 496 if (!mDeferRemoveExtraEmptyScreen) { 497 removeExtraEmptyScreen(true, mDragSourceInternal != null); 498 } 499 500 updateChildrenLayersEnabled(false); 501 mLauncher.unlockScreenOrientation(false); 502 503 // Re-enable any Un/InstallShortcutReceiver and now process any queued items 504 InstallShortcutReceiver.disableAndFlushInstallQueue(getContext()); 505 506 mOutlineProvider = null; 507 mDragInfo = null; 508 mDragSourceInternal = null; 509 mLauncher.onInteractionEnd(); 510 } 511 512 /** 513 * Initializes various states for this workspace. 514 */ 515 protected void initWorkspace() { 516 mCurrentPage = getDefaultPage(); 517 DeviceProfile grid = mLauncher.getDeviceProfile(); 518 setWillNotDraw(false); 519 setClipChildren(false); 520 setClipToPadding(false); 521 522 setMinScale(mOverviewModeShrinkFactor); 523 setupLayoutTransition(); 524 525 mMaxDistanceForFolderCreation = (0.55f * grid.iconSizePx); 526 527 // Set the wallpaper dimensions when Launcher starts up 528 setWallpaperDimension(); 529 530 setEdgeGlowColor(getResources().getColor(R.color.workspace_edge_effect_color)); 531 } 532 533 @Override 534 public void initParentViews(View parent) { 535 super.initParentViews(parent); 536 mPageIndicator.setAccessibilityDelegate(new OverviewAccessibilityDelegate()); 537 mQsbAlphaController = new MultiStateAlphaController(mLauncher.getQsbContainer(), 4); 538 } 539 540 private int getDefaultPage() { 541 return numCustomPages(); 542 } 543 544 private void setupLayoutTransition() { 545 // We want to show layout transitions when pages are deleted, to close the gap. 546 mLayoutTransition = new LayoutTransition(); 547 mLayoutTransition.enableTransitionType(LayoutTransition.DISAPPEARING); 548 mLayoutTransition.enableTransitionType(LayoutTransition.CHANGE_DISAPPEARING); 549 mLayoutTransition.disableTransitionType(LayoutTransition.APPEARING); 550 mLayoutTransition.disableTransitionType(LayoutTransition.CHANGE_APPEARING); 551 setLayoutTransition(mLayoutTransition); 552 } 553 554 void enableLayoutTransitions() { 555 setLayoutTransition(mLayoutTransition); 556 } 557 void disableLayoutTransitions() { 558 setLayoutTransition(null); 559 } 560 561 @Override 562 public void onChildViewAdded(View parent, View child) { 563 if (!(child instanceof CellLayout)) { 564 throw new IllegalArgumentException("A Workspace can only have CellLayout children."); 565 } 566 CellLayout cl = ((CellLayout) child); 567 cl.setOnInterceptTouchListener(this); 568 cl.setClickable(true); 569 cl.setImportantForAccessibility(IMPORTANT_FOR_ACCESSIBILITY_NO); 570 super.onChildViewAdded(parent, child); 571 } 572 573 boolean isTouchActive() { 574 return mTouchState != TOUCH_STATE_REST; 575 } 576 577 private int getEmbeddedQsbId() { 578 return mLauncher.getDeviceProfile().isVerticalBarLayout() 579 ? R.id.qsb_container : R.id.workspace_blocked_row; 580 } 581 582 /** 583 * Initializes and binds the first page 584 * @param qsb an existing qsb to recycle or null. 585 */ 586 public void bindAndInitFirstWorkspaceScreen(View qsb) { 587 if (!FeatureFlags.QSB_ON_FIRST_SCREEN) { 588 return; 589 } 590 // Add the first page 591 CellLayout firstPage = insertNewWorkspaceScreen(Workspace.FIRST_SCREEN_ID, 0); 592 if (FeatureFlags.PULLDOWN_SEARCH) { 593 firstPage.setOnTouchListener(new VerticalFlingDetector(mLauncher) { 594 // detect fling when touch started from empty space 595 @Override 596 public boolean onTouch(View v, MotionEvent ev) { 597 if (workspaceInModalState()) return false; 598 if (shouldConsumeTouch(v)) return true; 599 if (super.onTouch(v, ev)) { 600 mLauncher.startSearch("", false, null, false); 601 return true; 602 } 603 return false; 604 } 605 }); 606 firstPage.setOnInterceptTouchListener(new VerticalFlingDetector(mLauncher) { 607 // detect fling when touch started from on top of the icons 608 @Override 609 public boolean onTouch(View v, MotionEvent ev) { 610 if (shouldConsumeTouch(v)) return true; 611 if (super.onTouch(v, ev)) { 612 mLauncher.startSearch("", false, null, false); 613 return true; 614 } 615 return false; 616 } 617 }); 618 } 619 // Always add a QSB on the first screen. 620 if (qsb == null) { 621 // In transposed layout, we add the QSB in the Grid. As workspace does not touch the 622 // edges, we do not need a full width QSB. 623 qsb = mLauncher.getLayoutInflater().inflate( 624 mLauncher.getDeviceProfile().isVerticalBarLayout() 625 ? R.layout.qsb_container : R.layout.qsb_blocker_view, 626 firstPage, false); 627 } 628 629 CellLayout.LayoutParams lp = new CellLayout.LayoutParams(0, 0, firstPage.getCountX(), 1); 630 lp.canReorder = false; 631 if (!firstPage.addViewToCellLayout(qsb, 0, getEmbeddedQsbId(), lp, true)) { 632 Log.e(TAG, "Failed to add to item at (0, 0) to CellLayout"); 633 } 634 } 635 636 @Override 637 protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 638 super.onMeasure(widthMeasureSpec, heightMeasureSpec); 639 640 // Update the QSB to match the cell height. This is treating the QSB essentially as a child 641 // of workspace despite that it's not a true child. 642 // Note that it relies on the strict ordering of measuring the workspace before the QSB 643 // at the dragLayer level. 644 if (getChildCount() > 0) { 645 CellLayout firstPage = (CellLayout) getChildAt(0); 646 int cellHeight = firstPage.getCellHeight(); 647 648 View qsbContainer = mLauncher.getQsbContainer(); 649 ViewGroup.LayoutParams lp = qsbContainer.getLayoutParams(); 650 if (cellHeight > 0 && lp.height != cellHeight) { 651 lp.height = cellHeight; 652 qsbContainer.setLayoutParams(lp); 653 } 654 } 655 } 656 657 public void removeAllWorkspaceScreens() { 658 // Disable all layout transitions before removing all pages to ensure that we don't get the 659 // transition animations competing with us changing the scroll when we add pages or the 660 // custom content screen 661 disableLayoutTransitions(); 662 663 // Since we increment the current page when we call addCustomContentPage via bindScreens 664 // (and other places), we need to adjust the current page back when we clear the pages 665 if (hasCustomContent()) { 666 removeCustomContentPage(); 667 } 668 669 // Recycle the QSB widget 670 View qsb = findViewById(getEmbeddedQsbId()); 671 if (qsb != null) { 672 ((ViewGroup) qsb.getParent()).removeView(qsb); 673 } 674 675 // Remove the pages and clear the screen models 676 removeAllViews(); 677 mScreenOrder.clear(); 678 mWorkspaceScreens.clear(); 679 680 // Ensure that the first page is always present 681 bindAndInitFirstWorkspaceScreen(qsb); 682 683 // Re-enable the layout transitions 684 enableLayoutTransitions(); 685 } 686 687 public void insertNewWorkspaceScreenBeforeEmptyScreen(long screenId) { 688 // Find the index to insert this view into. If the empty screen exists, then 689 // insert it before that. 690 int insertIndex = mScreenOrder.indexOf(EXTRA_EMPTY_SCREEN_ID); 691 if (insertIndex < 0) { 692 insertIndex = mScreenOrder.size(); 693 } 694 insertNewWorkspaceScreen(screenId, insertIndex); 695 } 696 697 public void insertNewWorkspaceScreen(long screenId) { 698 insertNewWorkspaceScreen(screenId, getChildCount()); 699 } 700 701 public CellLayout insertNewWorkspaceScreen(long screenId, int insertIndex) { 702 if (mWorkspaceScreens.containsKey(screenId)) { 703 throw new RuntimeException("Screen id " + screenId + " already exists!"); 704 } 705 706 // Inflate the cell layout, but do not add it automatically so that we can get the newly 707 // created CellLayout. 708 CellLayout newScreen = (CellLayout) mLauncher.getLayoutInflater().inflate( 709 R.layout.workspace_screen, this, false /* attachToRoot */); 710 newScreen.setOnLongClickListener(mLongClickListener); 711 newScreen.setOnClickListener(mLauncher); 712 newScreen.setSoundEffectsEnabled(false); 713 mWorkspaceScreens.put(screenId, newScreen); 714 mScreenOrder.add(insertIndex, screenId); 715 addView(newScreen, insertIndex); 716 717 if (mLauncher.getAccessibilityDelegate().isInAccessibleDrag()) { 718 newScreen.enableAccessibleDrag(true, CellLayout.WORKSPACE_ACCESSIBILITY_DRAG); 719 } 720 721 return newScreen; 722 } 723 724 public void createCustomContentContainer() { 725 CellLayout customScreen = (CellLayout) 726 mLauncher.getLayoutInflater().inflate(R.layout.workspace_screen, this, false); 727 customScreen.disableDragTarget(); 728 customScreen.disableJailContent(); 729 730 mWorkspaceScreens.put(CUSTOM_CONTENT_SCREEN_ID, customScreen); 731 mScreenOrder.add(0, CUSTOM_CONTENT_SCREEN_ID); 732 733 // We want no padding on the custom content 734 customScreen.setPadding(0, 0, 0, 0); 735 736 addFullScreenPage(customScreen); 737 738 // Update the custom content hint 739 setCurrentPage(getCurrentPage() + 1); 740 } 741 742 public void removeCustomContentPage() { 743 CellLayout customScreen = getScreenWithId(CUSTOM_CONTENT_SCREEN_ID); 744 if (customScreen == null) { 745 throw new RuntimeException("Expected custom content screen to exist"); 746 } 747 748 mWorkspaceScreens.remove(CUSTOM_CONTENT_SCREEN_ID); 749 mScreenOrder.remove(CUSTOM_CONTENT_SCREEN_ID); 750 removeView(customScreen); 751 752 if (mCustomContentCallbacks != null) { 753 mCustomContentCallbacks.onScrollProgressChanged(0); 754 mCustomContentCallbacks.onHide(); 755 } 756 757 mCustomContentCallbacks = null; 758 759 // Update the custom content hint 760 setCurrentPage(getCurrentPage() - 1); 761 } 762 763 public void addToCustomContentPage(View customContent, CustomContentCallbacks callbacks, 764 String description) { 765 if (getPageIndexForScreenId(CUSTOM_CONTENT_SCREEN_ID) < 0) { 766 throw new RuntimeException("Expected custom content screen to exist"); 767 } 768 769 // Add the custom content to the full screen custom page 770 CellLayout customScreen = getScreenWithId(CUSTOM_CONTENT_SCREEN_ID); 771 int spanX = customScreen.getCountX(); 772 int spanY = customScreen.getCountY(); 773 CellLayout.LayoutParams lp = new CellLayout.LayoutParams(0, 0, spanX, spanY); 774 lp.canReorder = false; 775 lp.isFullscreen = true; 776 if (customContent instanceof Insettable) { 777 ((Insettable)customContent).setInsets(mInsets); 778 } 779 780 // Verify that the child is removed from any existing parent. 781 if (customContent.getParent() instanceof ViewGroup) { 782 ViewGroup parent = (ViewGroup) customContent.getParent(); 783 parent.removeView(customContent); 784 } 785 customScreen.removeAllViews(); 786 customContent.setFocusable(true); 787 customContent.setOnKeyListener(new FullscreenKeyEventListener()); 788 customContent.setOnFocusChangeListener(mLauncher.mFocusHandler 789 .getHideIndicatorOnFocusListener()); 790 customScreen.addViewToCellLayout(customContent, 0, 0, lp, true); 791 mCustomContentDescription = description; 792 793 mCustomContentCallbacks = callbacks; 794 } 795 796 public void addExtraEmptyScreenOnDrag() { 797 boolean lastChildOnScreen = false; 798 boolean childOnFinalScreen = false; 799 800 // Cancel any pending removal of empty screen 801 mRemoveEmptyScreenRunnable = null; 802 803 if (mDragSourceInternal != null) { 804 if (mDragSourceInternal.getChildCount() == 1) { 805 lastChildOnScreen = true; 806 } 807 CellLayout cl = (CellLayout) mDragSourceInternal.getParent(); 808 if (indexOfChild(cl) == getChildCount() - 1) { 809 childOnFinalScreen = true; 810 } 811 } 812 813 // If this is the last item on the final screen 814 if (lastChildOnScreen && childOnFinalScreen) { 815 return; 816 } 817 if (!mWorkspaceScreens.containsKey(EXTRA_EMPTY_SCREEN_ID)) { 818 insertNewWorkspaceScreen(EXTRA_EMPTY_SCREEN_ID); 819 } 820 } 821 822 public boolean addExtraEmptyScreen() { 823 if (!mWorkspaceScreens.containsKey(EXTRA_EMPTY_SCREEN_ID)) { 824 insertNewWorkspaceScreen(EXTRA_EMPTY_SCREEN_ID); 825 return true; 826 } 827 return false; 828 } 829 830 private void convertFinalScreenToEmptyScreenIfNecessary() { 831 if (mLauncher.isWorkspaceLoading()) { 832 // Invalid and dangerous operation if workspace is loading 833 return; 834 } 835 836 if (hasExtraEmptyScreen() || mScreenOrder.size() == 0) return; 837 long finalScreenId = mScreenOrder.get(mScreenOrder.size() - 1); 838 839 if (finalScreenId == CUSTOM_CONTENT_SCREEN_ID) return; 840 CellLayout finalScreen = mWorkspaceScreens.get(finalScreenId); 841 842 // If the final screen is empty, convert it to the extra empty screen 843 if (finalScreen.getShortcutsAndWidgets().getChildCount() == 0 && 844 !finalScreen.isDropPending()) { 845 mWorkspaceScreens.remove(finalScreenId); 846 mScreenOrder.remove(finalScreenId); 847 848 // if this is the last non-custom content screen, convert it to the empty screen 849 mWorkspaceScreens.put(EXTRA_EMPTY_SCREEN_ID, finalScreen); 850 mScreenOrder.add(EXTRA_EMPTY_SCREEN_ID); 851 852 // Update the model if we have changed any screens 853 mLauncher.getModel().updateWorkspaceScreenOrder(mLauncher, mScreenOrder); 854 } 855 } 856 857 public void removeExtraEmptyScreen(final boolean animate, boolean stripEmptyScreens) { 858 removeExtraEmptyScreenDelayed(animate, null, 0, stripEmptyScreens); 859 } 860 861 public void removeExtraEmptyScreenDelayed(final boolean animate, final Runnable onComplete, 862 final int delay, final boolean stripEmptyScreens) { 863 if (mLauncher.isWorkspaceLoading()) { 864 // Don't strip empty screens if the workspace is still loading 865 return; 866 } 867 868 if (delay > 0) { 869 postDelayed(new Runnable() { 870 @Override 871 public void run() { 872 removeExtraEmptyScreenDelayed(animate, onComplete, 0, stripEmptyScreens); 873 } 874 }, delay); 875 return; 876 } 877 878 convertFinalScreenToEmptyScreenIfNecessary(); 879 if (hasExtraEmptyScreen()) { 880 int emptyIndex = mScreenOrder.indexOf(EXTRA_EMPTY_SCREEN_ID); 881 if (getNextPage() == emptyIndex) { 882 snapToPage(getNextPage() - 1, SNAP_OFF_EMPTY_SCREEN_DURATION); 883 fadeAndRemoveEmptyScreen(SNAP_OFF_EMPTY_SCREEN_DURATION, FADE_EMPTY_SCREEN_DURATION, 884 onComplete, stripEmptyScreens); 885 } else { 886 snapToPage(getNextPage(), 0); 887 fadeAndRemoveEmptyScreen(0, FADE_EMPTY_SCREEN_DURATION, 888 onComplete, stripEmptyScreens); 889 } 890 return; 891 } else if (stripEmptyScreens) { 892 // If we're not going to strip the empty screens after removing 893 // the extra empty screen, do it right away. 894 stripEmptyScreens(); 895 } 896 897 if (onComplete != null) { 898 onComplete.run(); 899 } 900 } 901 902 private void fadeAndRemoveEmptyScreen(int delay, int duration, final Runnable onComplete, 903 final boolean stripEmptyScreens) { 904 // XXX: Do we need to update LM workspace screens below? 905 PropertyValuesHolder alpha = PropertyValuesHolder.ofFloat("alpha", 0f); 906 PropertyValuesHolder bgAlpha = PropertyValuesHolder.ofFloat("backgroundAlpha", 0f); 907 908 final CellLayout cl = mWorkspaceScreens.get(EXTRA_EMPTY_SCREEN_ID); 909 910 mRemoveEmptyScreenRunnable = new Runnable() { 911 @Override 912 public void run() { 913 if (hasExtraEmptyScreen()) { 914 mWorkspaceScreens.remove(EXTRA_EMPTY_SCREEN_ID); 915 mScreenOrder.remove(EXTRA_EMPTY_SCREEN_ID); 916 removeView(cl); 917 if (stripEmptyScreens) { 918 stripEmptyScreens(); 919 } 920 // Update the page indicator to reflect the removed page. 921 showPageIndicatorAtCurrentScroll(); 922 } 923 } 924 }; 925 926 ObjectAnimator oa = ObjectAnimator.ofPropertyValuesHolder(cl, alpha, bgAlpha); 927 oa.setDuration(duration); 928 oa.setStartDelay(delay); 929 oa.addListener(new AnimatorListenerAdapter() { 930 @Override 931 public void onAnimationEnd(Animator animation) { 932 if (mRemoveEmptyScreenRunnable != null) { 933 mRemoveEmptyScreenRunnable.run(); 934 } 935 if (onComplete != null) { 936 onComplete.run(); 937 } 938 } 939 }); 940 oa.start(); 941 } 942 943 public boolean hasExtraEmptyScreen() { 944 int nScreens = getChildCount(); 945 nScreens = nScreens - numCustomPages(); 946 return mWorkspaceScreens.containsKey(EXTRA_EMPTY_SCREEN_ID) && nScreens > 1; 947 } 948 949 public long commitExtraEmptyScreen() { 950 if (mLauncher.isWorkspaceLoading()) { 951 // Invalid and dangerous operation if workspace is loading 952 return -1; 953 } 954 955 int index = getPageIndexForScreenId(EXTRA_EMPTY_SCREEN_ID); 956 CellLayout cl = mWorkspaceScreens.get(EXTRA_EMPTY_SCREEN_ID); 957 mWorkspaceScreens.remove(EXTRA_EMPTY_SCREEN_ID); 958 mScreenOrder.remove(EXTRA_EMPTY_SCREEN_ID); 959 960 long newId = LauncherSettings.Settings.call(getContext().getContentResolver(), 961 LauncherSettings.Settings.METHOD_NEW_SCREEN_ID) 962 .getLong(LauncherSettings.Settings.EXTRA_VALUE); 963 mWorkspaceScreens.put(newId, cl); 964 mScreenOrder.add(newId); 965 966 // Update the model for the new screen 967 mLauncher.getModel().updateWorkspaceScreenOrder(mLauncher, mScreenOrder); 968 969 return newId; 970 } 971 972 public CellLayout getScreenWithId(long screenId) { 973 return mWorkspaceScreens.get(screenId); 974 } 975 976 public long getIdForScreen(CellLayout layout) { 977 int index = mWorkspaceScreens.indexOfValue(layout); 978 if (index != -1) { 979 return mWorkspaceScreens.keyAt(index); 980 } 981 return -1; 982 } 983 984 public int getPageIndexForScreenId(long screenId) { 985 return indexOfChild(mWorkspaceScreens.get(screenId)); 986 } 987 988 public long getScreenIdForPageIndex(int index) { 989 if (0 <= index && index < mScreenOrder.size()) { 990 return mScreenOrder.get(index); 991 } 992 return -1; 993 } 994 995 public ArrayList<Long> getScreenOrder() { 996 return mScreenOrder; 997 } 998 999 public void stripEmptyScreens() { 1000 if (mLauncher.isWorkspaceLoading()) { 1001 // Don't strip empty screens if the workspace is still loading. 1002 // This is dangerous and can result in data loss. 1003 return; 1004 } 1005 1006 if (isPageInTransition()) { 1007 mStripScreensOnPageStopMoving = true; 1008 return; 1009 } 1010 1011 int currentPage = getNextPage(); 1012 ArrayList<Long> removeScreens = new ArrayList<Long>(); 1013 int total = mWorkspaceScreens.size(); 1014 for (int i = 0; i < total; i++) { 1015 long id = mWorkspaceScreens.keyAt(i); 1016 CellLayout cl = mWorkspaceScreens.valueAt(i); 1017 // FIRST_SCREEN_ID can never be removed. 1018 if ((!FeatureFlags.QSB_ON_FIRST_SCREEN || id > FIRST_SCREEN_ID) 1019 && cl.getShortcutsAndWidgets().getChildCount() == 0) { 1020 removeScreens.add(id); 1021 } 1022 } 1023 1024 boolean isInAccessibleDrag = mLauncher.getAccessibilityDelegate().isInAccessibleDrag(); 1025 1026 // We enforce at least one page to add new items to. In the case that we remove the last 1027 // such screen, we convert the last screen to the empty screen 1028 int minScreens = 1 + numCustomPages(); 1029 1030 int pageShift = 0; 1031 for (Long id: removeScreens) { 1032 CellLayout cl = mWorkspaceScreens.get(id); 1033 mWorkspaceScreens.remove(id); 1034 mScreenOrder.remove(id); 1035 1036 if (getChildCount() > minScreens) { 1037 if (indexOfChild(cl) < currentPage) { 1038 pageShift++; 1039 } 1040 1041 if (isInAccessibleDrag) { 1042 cl.enableAccessibleDrag(false, CellLayout.WORKSPACE_ACCESSIBILITY_DRAG); 1043 } 1044 1045 removeView(cl); 1046 } else { 1047 // if this is the last non-custom content screen, convert it to the empty screen 1048 mRemoveEmptyScreenRunnable = null; 1049 mWorkspaceScreens.put(EXTRA_EMPTY_SCREEN_ID, cl); 1050 mScreenOrder.add(EXTRA_EMPTY_SCREEN_ID); 1051 } 1052 } 1053 1054 if (!removeScreens.isEmpty()) { 1055 // Update the model if we have changed any screens 1056 mLauncher.getModel().updateWorkspaceScreenOrder(mLauncher, mScreenOrder); 1057 } 1058 1059 if (pageShift >= 0) { 1060 setCurrentPage(currentPage - pageShift); 1061 } 1062 } 1063 1064 /** 1065 * At bind time, we use the rank (screenId) to compute x and y for hotseat items. 1066 * See {@link #addInScreen}. 1067 */ 1068 public void addInScreenFromBind(View child, ItemInfo info) { 1069 int x = info.cellX; 1070 int y = info.cellY; 1071 if (info.container == LauncherSettings.Favorites.CONTAINER_HOTSEAT) { 1072 int screenId = (int) info.screenId; 1073 x = mLauncher.getHotseat().getCellXFromOrder(screenId); 1074 y = mLauncher.getHotseat().getCellYFromOrder(screenId); 1075 } 1076 addInScreen(child, info.container, info.screenId, x, y, info.spanX, info.spanY); 1077 } 1078 1079 /** 1080 * Adds the specified child in the specified screen based on the {@param info} 1081 * See {@link #addInScreen}. 1082 */ 1083 public void addInScreen(View child, ItemInfo info) { 1084 addInScreen(child, info.container, info.screenId, info.cellX, info.cellY, 1085 info.spanX, info.spanY); 1086 } 1087 1088 /** 1089 * Adds the specified child in the specified screen. The position and dimension of 1090 * the child are defined by x, y, spanX and spanY. 1091 * 1092 * @param child The child to add in one of the workspace's screens. 1093 * @param screenId The screen in which to add the child. 1094 * @param x The X position of the child in the screen's grid. 1095 * @param y The Y position of the child in the screen's grid. 1096 * @param spanX The number of cells spanned horizontally by the child. 1097 * @param spanY The number of cells spanned vertically by the child. 1098 */ 1099 private void addInScreen(View child, long container, long screenId, int x, int y, 1100 int spanX, int spanY) { 1101 if (container == LauncherSettings.Favorites.CONTAINER_DESKTOP) { 1102 if (getScreenWithId(screenId) == null) { 1103 Log.e(TAG, "Skipping child, screenId " + screenId + " not found"); 1104 // DEBUGGING - Print out the stack trace to see where we are adding from 1105 new Throwable().printStackTrace(); 1106 return; 1107 } 1108 } 1109 if (screenId == EXTRA_EMPTY_SCREEN_ID) { 1110 // This should never happen 1111 throw new RuntimeException("Screen id should not be EXTRA_EMPTY_SCREEN_ID"); 1112 } 1113 1114 final CellLayout layout; 1115 if (container == LauncherSettings.Favorites.CONTAINER_HOTSEAT) { 1116 layout = mLauncher.getHotseat().getLayout(); 1117 child.setOnKeyListener(new HotseatIconKeyEventListener()); 1118 1119 // Hide folder title in the hotseat 1120 if (child instanceof FolderIcon) { 1121 ((FolderIcon) child).setTextVisible(false); 1122 } 1123 } else { 1124 // Show folder title if not in the hotseat 1125 if (child instanceof FolderIcon) { 1126 ((FolderIcon) child).setTextVisible(true); 1127 } 1128 layout = getScreenWithId(screenId); 1129 child.setOnKeyListener(new IconKeyEventListener()); 1130 } 1131 1132 ViewGroup.LayoutParams genericLp = child.getLayoutParams(); 1133 CellLayout.LayoutParams lp; 1134 if (genericLp == null || !(genericLp instanceof CellLayout.LayoutParams)) { 1135 lp = new CellLayout.LayoutParams(x, y, spanX, spanY); 1136 } else { 1137 lp = (CellLayout.LayoutParams) genericLp; 1138 lp.cellX = x; 1139 lp.cellY = y; 1140 lp.cellHSpan = spanX; 1141 lp.cellVSpan = spanY; 1142 } 1143 1144 if (spanX < 0 && spanY < 0) { 1145 lp.isLockedToGrid = false; 1146 } 1147 1148 // Get the canonical child id to uniquely represent this view in this screen 1149 ItemInfo info = (ItemInfo) child.getTag(); 1150 int childId = mLauncher.getViewIdForItem(info); 1151 1152 boolean markCellsAsOccupied = !(child instanceof Folder); 1153 if (!layout.addViewToCellLayout(child, -1, childId, lp, markCellsAsOccupied)) { 1154 // TODO: This branch occurs when the workspace is adding views 1155 // outside of the defined grid 1156 // maybe we should be deleting these items from the LauncherModel? 1157 Log.e(TAG, "Failed to add to item at (" + lp.cellX + "," + lp.cellY + ") to CellLayout"); 1158 } 1159 1160 if (!(child instanceof Folder)) { 1161 child.setHapticFeedbackEnabled(false); 1162 child.setOnLongClickListener(mLongClickListener); 1163 } 1164 if (child instanceof DropTarget) { 1165 mDragController.addDropTarget((DropTarget) child); 1166 } 1167 } 1168 1169 /** 1170 * Called directly from a CellLayout (not by the framework), after we've been added as a 1171 * listener via setOnInterceptTouchEventListener(). This allows us to tell the CellLayout 1172 * that it should intercept touch events, which is not something that is normally supported. 1173 */ 1174 @SuppressLint("ClickableViewAccessibility") 1175 @Override 1176 public boolean onTouch(View v, MotionEvent event) { 1177 return shouldConsumeTouch(v); 1178 } 1179 1180 private boolean shouldConsumeTouch(View v) { 1181 return !workspaceIconsCanBeDragged() 1182 || (!workspaceInModalState() && indexOfChild(v) != mCurrentPage); 1183 } 1184 1185 public boolean isSwitchingState() { 1186 return mIsSwitchingState; 1187 } 1188 1189 /** This differs from isSwitchingState in that we take into account how far the transition 1190 * has completed. */ 1191 public boolean isFinishedSwitchingState() { 1192 return !mIsSwitchingState 1193 || (mTransitionProgress > FINISHED_SWITCHING_STATE_TRANSITION_PROGRESS); 1194 } 1195 1196 protected void onWindowVisibilityChanged (int visibility) { 1197 mLauncher.onWindowVisibilityChanged(visibility); 1198 } 1199 1200 @Override 1201 public boolean dispatchUnhandledMove(View focused, int direction) { 1202 if (workspaceInModalState() || !isFinishedSwitchingState()) { 1203 // when the home screens are shrunken, shouldn't allow side-scrolling 1204 return false; 1205 } 1206 return super.dispatchUnhandledMove(focused, direction); 1207 } 1208 1209 @Override 1210 public boolean onInterceptTouchEvent(MotionEvent ev) { 1211 switch (ev.getAction() & MotionEvent.ACTION_MASK) { 1212 case MotionEvent.ACTION_DOWN: 1213 mXDown = ev.getX(); 1214 mYDown = ev.getY(); 1215 mTouchDownTime = System.currentTimeMillis(); 1216 break; 1217 case MotionEvent.ACTION_POINTER_UP: 1218 case MotionEvent.ACTION_UP: 1219 if (mTouchState == TOUCH_STATE_REST) { 1220 final CellLayout currentPage = (CellLayout) getChildAt(mCurrentPage); 1221 if (currentPage != null) { 1222 onWallpaperTap(ev); 1223 } 1224 } 1225 } 1226 return super.onInterceptTouchEvent(ev); 1227 } 1228 1229 @Override 1230 public boolean onGenericMotionEvent(MotionEvent event) { 1231 // Ignore pointer scroll events if the custom content doesn't allow scrolling. 1232 if ((getScreenIdForPageIndex(getCurrentPage()) == CUSTOM_CONTENT_SCREEN_ID) 1233 && (mCustomContentCallbacks != null) 1234 && !mCustomContentCallbacks.isScrollingAllowed()) { 1235 return false; 1236 } 1237 return super.onGenericMotionEvent(event); 1238 } 1239 1240 protected void reinflateWidgetsIfNecessary() { 1241 final int clCount = getChildCount(); 1242 for (int i = 0; i < clCount; i++) { 1243 CellLayout cl = (CellLayout) getChildAt(i); 1244 ShortcutAndWidgetContainer swc = cl.getShortcutsAndWidgets(); 1245 final int itemCount = swc.getChildCount(); 1246 for (int j = 0; j < itemCount; j++) { 1247 View v = swc.getChildAt(j); 1248 1249 if (v instanceof LauncherAppWidgetHostView 1250 && v.getTag() instanceof LauncherAppWidgetInfo) { 1251 LauncherAppWidgetInfo info = (LauncherAppWidgetInfo) v.getTag(); 1252 LauncherAppWidgetHostView lahv = (LauncherAppWidgetHostView) v; 1253 if (lahv.isReinflateRequired()) { 1254 // Remove and rebind the current widget (which was inflated in the wrong 1255 // orientation), but don't delete it from the database 1256 mLauncher.removeItem(lahv, info, false /* deleteFromDb */); 1257 mLauncher.bindAppWidget(info); 1258 } 1259 } 1260 } 1261 } 1262 } 1263 1264 @Override 1265 protected void determineScrollingStart(MotionEvent ev) { 1266 if (!isFinishedSwitchingState()) return; 1267 1268 float deltaX = ev.getX() - mXDown; 1269 float absDeltaX = Math.abs(deltaX); 1270 float absDeltaY = Math.abs(ev.getY() - mYDown); 1271 1272 if (Float.compare(absDeltaX, 0f) == 0) return; 1273 1274 float slope = absDeltaY / absDeltaX; 1275 float theta = (float) Math.atan(slope); 1276 1277 if (absDeltaX > mTouchSlop || absDeltaY > mTouchSlop) { 1278 cancelCurrentPageLongPress(); 1279 } 1280 1281 boolean passRightSwipesToCustomContent = 1282 (mTouchDownTime - mCustomContentShowTime) > CUSTOM_CONTENT_GESTURE_DELAY; 1283 1284 boolean swipeInIgnoreDirection = mIsRtl ? deltaX < 0 : deltaX > 0; 1285 boolean onCustomContentScreen = 1286 getScreenIdForPageIndex(getCurrentPage()) == CUSTOM_CONTENT_SCREEN_ID; 1287 if (swipeInIgnoreDirection && onCustomContentScreen && passRightSwipesToCustomContent) { 1288 // Pass swipes to the right to the custom content page. 1289 return; 1290 } 1291 1292 if (onCustomContentScreen && (mCustomContentCallbacks != null) 1293 && !mCustomContentCallbacks.isScrollingAllowed()) { 1294 // Don't allow workspace scrolling if the current custom content screen doesn't allow 1295 // scrolling. 1296 return; 1297 } 1298 1299 if (theta > MAX_SWIPE_ANGLE) { 1300 // Above MAX_SWIPE_ANGLE, we don't want to ever start scrolling the workspace 1301 return; 1302 } else if (theta > START_DAMPING_TOUCH_SLOP_ANGLE) { 1303 // Above START_DAMPING_TOUCH_SLOP_ANGLE and below MAX_SWIPE_ANGLE, we want to 1304 // increase the touch slop to make it harder to begin scrolling the workspace. This 1305 // results in vertically scrolling widgets to more easily. The higher the angle, the 1306 // more we increase touch slop. 1307 theta -= START_DAMPING_TOUCH_SLOP_ANGLE; 1308 float extraRatio = (float) 1309 Math.sqrt((theta / (MAX_SWIPE_ANGLE - START_DAMPING_TOUCH_SLOP_ANGLE))); 1310 super.determineScrollingStart(ev, 1 + TOUCH_SLOP_DAMPING_FACTOR * extraRatio); 1311 } else { 1312 // Below START_DAMPING_TOUCH_SLOP_ANGLE, we don't do anything special 1313 super.determineScrollingStart(ev); 1314 } 1315 } 1316 1317 protected void onPageBeginTransition() { 1318 super.onPageBeginTransition(); 1319 updateChildrenLayersEnabled(false); 1320 } 1321 1322 protected void onPageEndTransition() { 1323 super.onPageEndTransition(); 1324 updateChildrenLayersEnabled(false); 1325 1326 if (mDragController.isDragging()) { 1327 if (workspaceInModalState()) { 1328 // If we are in springloaded mode, then force an event to check if the current touch 1329 // is under a new page (to scroll to) 1330 mDragController.forceTouchMove(); 1331 } 1332 } 1333 1334 if (mDelayedResizeRunnable != null && !mIsSwitchingState) { 1335 mDelayedResizeRunnable.run(); 1336 mDelayedResizeRunnable = null; 1337 } 1338 1339 if (mDelayedSnapToPageRunnable != null) { 1340 mDelayedSnapToPageRunnable.run(); 1341 mDelayedSnapToPageRunnable = null; 1342 } 1343 if (mStripScreensOnPageStopMoving) { 1344 stripEmptyScreens(); 1345 mStripScreensOnPageStopMoving = false; 1346 } 1347 } 1348 1349 protected void onScrollInteractionBegin() { 1350 super.onScrollInteractionEnd(); 1351 mScrollInteractionBegan = true; 1352 } 1353 1354 protected void onScrollInteractionEnd() { 1355 super.onScrollInteractionEnd(); 1356 mScrollInteractionBegan = false; 1357 if (mStartedSendingScrollEvents) { 1358 mStartedSendingScrollEvents = false; 1359 mLauncherOverlay.onScrollInteractionEnd(); 1360 } 1361 } 1362 1363 public void setLauncherOverlay(LauncherOverlay overlay) { 1364 mLauncherOverlay = overlay; 1365 // A new overlay has been set. Reset event tracking 1366 mStartedSendingScrollEvents = false; 1367 onOverlayScrollChanged(0); 1368 } 1369 1370 @Override 1371 protected int getUnboundedScrollX() { 1372 if (isScrollingOverlay()) { 1373 return mUnboundedScrollX; 1374 } 1375 1376 return super.getUnboundedScrollX(); 1377 } 1378 1379 private boolean isScrollingOverlay() { 1380 return mLauncherOverlay != null && 1381 ((mIsRtl && mUnboundedScrollX > mMaxScrollX) || (!mIsRtl && mUnboundedScrollX < 0)); 1382 } 1383 1384 @Override 1385 protected void snapToDestination() { 1386 // If we're overscrolling the overlay, we make sure to immediately reset the PagedView 1387 // to it's baseline position instead of letting the overscroll settle. The overlay handles 1388 // it's own settling, and every gesture to the overlay should be self-contained and start 1389 // from 0, so we zero it out here. 1390 if (isScrollingOverlay()) { 1391 // We reset mWasInOverscroll so that PagedView doesn't zero out the overscroll 1392 // interaction when we call snapToPageImmediately. 1393 mWasInOverscroll = false; 1394 snapToPageImmediately(0); 1395 } else { 1396 super.snapToDestination(); 1397 } 1398 } 1399 1400 @Override 1401 public void scrollTo(int x, int y) { 1402 mUnboundedScrollX = x; 1403 super.scrollTo(x, y); 1404 } 1405 1406 private void onWorkspaceOverallScrollChanged() { 1407 if (!mIgnoreQsbScroll) { 1408 mLauncher.getQsbContainer().setTranslationX( 1409 mOverlayTranslation + mFirstPageScrollX - getScrollX()); 1410 } 1411 } 1412 1413 @Override 1414 protected void onScrollChanged(int l, int t, int oldl, int oldt) { 1415 super.onScrollChanged(l, t, oldl, oldt); 1416 onWorkspaceOverallScrollChanged(); 1417 1418 // Update the page indicator progress. 1419 boolean isTransitioning = mIsSwitchingState 1420 || (getLayoutTransition() != null && getLayoutTransition().isRunning()); 1421 if (!isTransitioning) { 1422 showPageIndicatorAtCurrentScroll(); 1423 } 1424 1425 updatePageAlphaValues(); 1426 updateStateForCustomContent(); 1427 enableHwLayersOnVisiblePages(); 1428 } 1429 1430 private void showPageIndicatorAtCurrentScroll() { 1431 if (mPageIndicator != null) { 1432 mPageIndicator.setScroll(getScrollX(), computeMaxScrollX()); 1433 } 1434 } 1435 1436 @Override 1437 protected void overScroll(float amount) { 1438 boolean shouldOverScroll = (amount <= 0 && (!hasCustomContent() || mIsRtl)) || 1439 (amount >= 0 && (!hasCustomContent() || !mIsRtl)); 1440 1441 boolean shouldScrollOverlay = mLauncherOverlay != null && 1442 ((amount <= 0 && !mIsRtl) || (amount >= 0 && mIsRtl)); 1443 1444 boolean shouldZeroOverlay = mLauncherOverlay != null && mLastOverlayScroll != 0 && 1445 ((amount >= 0 && !mIsRtl) || (amount <= 0 && mIsRtl)); 1446 1447 if (shouldScrollOverlay) { 1448 if (!mStartedSendingScrollEvents && mScrollInteractionBegan) { 1449 mStartedSendingScrollEvents = true; 1450 mLauncherOverlay.onScrollInteractionBegin(); 1451 } 1452 1453 mLastOverlayScroll = Math.abs(amount / getViewportWidth()); 1454 mLauncherOverlay.onScrollChange(mLastOverlayScroll, mIsRtl); 1455 } else if (shouldOverScroll) { 1456 dampedOverScroll(amount); 1457 } 1458 1459 if (shouldZeroOverlay) { 1460 mLauncherOverlay.onScrollChange(0, mIsRtl); 1461 } 1462 } 1463 1464 private final Interpolator mAlphaInterpolator = new DecelerateInterpolator(3f); 1465 1466 /** 1467 * The overlay scroll is being controlled locally, just update our overlay effect 1468 */ 1469 public void onOverlayScrollChanged(float scroll) { 1470 float offset = 0f; 1471 float slip = 0f; 1472 1473 scroll = Math.max(scroll - offset, 0); 1474 scroll = Math.min(1, scroll / (1 - offset)); 1475 1476 float alpha = 1 - mAlphaInterpolator.getInterpolation(scroll); 1477 float transX = mLauncher.getDragLayer().getMeasuredWidth() * scroll; 1478 transX *= 1 - slip; 1479 1480 if (mIsRtl) { 1481 transX = -transX; 1482 } 1483 mOverlayTranslation = transX; 1484 1485 // TODO(adamcohen): figure out a final effect here. We may need to recommend 1486 // different effects based on device performance. On at least one relatively high-end 1487 // device I've tried, translating the launcher causes things to get quite laggy. 1488 setWorkspaceTranslationAndAlpha(Direction.X, transX, alpha); 1489 setHotseatTranslationAndAlpha(Direction.X, transX, alpha); 1490 onWorkspaceOverallScrollChanged(); 1491 1492 mQsbAlphaController.setAlphaAtIndex(alpha, QSB_ALPHA_INDEX_OVERLAY_SCROLL); 1493 } 1494 1495 /** 1496 * Moves the workspace UI in the Y direction. 1497 * @param translation the amount of shift. 1498 * @param alpha the alpha for the workspace page 1499 */ 1500 public void setWorkspaceYTranslationAndAlpha(float translation, float alpha) { 1501 setWorkspaceTranslationAndAlpha(Direction.Y, translation, alpha); 1502 1503 mLauncher.getQsbContainer().setTranslationY(translation); 1504 mQsbAlphaController.setAlphaAtIndex(alpha, QSB_ALPHA_INDEX_Y_TRANSLATION); 1505 } 1506 1507 /** 1508 * Moves the workspace UI in the provided direction. 1509 * @param direction the direction to move the workspace 1510 * @param translation the amount of shift. 1511 * @param alpha the alpha for the workspace page 1512 */ 1513 private void setWorkspaceTranslationAndAlpha(Direction direction, float translation, float alpha) { 1514 Property<View, Float> property = direction.viewProperty; 1515 mPageAlpha[direction.ordinal()] = alpha; 1516 float finalAlpha = mPageAlpha[0] * mPageAlpha[1]; 1517 1518 View currentChild = getChildAt(getCurrentPage()); 1519 if (currentChild != null) { 1520 property.set(currentChild, translation); 1521 currentChild.setAlpha(finalAlpha); 1522 } 1523 1524 // When the animation finishes, reset all pages, just in case we missed a page. 1525 if (Float.compare(translation, 0) == 0) { 1526 for (int i = getChildCount() - 1; i >= 0; i--) { 1527 View child = getChildAt(i); 1528 property.set(child, translation); 1529 child.setAlpha(finalAlpha); 1530 } 1531 } 1532 } 1533 1534 /** 1535 * Moves the Hotseat UI in the provided direction. 1536 * @param direction the direction to move the workspace 1537 * @param translation the amount of shift. 1538 * @param alpha the alpha for the hotseat page 1539 */ 1540 public void setHotseatTranslationAndAlpha(Direction direction, float translation, float alpha) { 1541 Property<View, Float> property = direction.viewProperty; 1542 // Skip the page indicator movement in the vertical bar layout 1543 if (direction != Direction.Y || !mLauncher.getDeviceProfile().isVerticalBarLayout()) { 1544 property.set(mPageIndicator, translation); 1545 } 1546 property.set(mLauncher.getHotseat(), translation); 1547 setHotseatAlphaAtIndex(alpha, direction.ordinal()); 1548 } 1549 1550 private void setHotseatAlphaAtIndex(float alpha, int index) { 1551 mHotseatAlpha[index] = alpha; 1552 final float hotseatAlpha = mHotseatAlpha[0] * mHotseatAlpha[1] * mHotseatAlpha[2]; 1553 final float pageIndicatorAlpha = mHotseatAlpha[0] * mHotseatAlpha[2]; 1554 1555 mLauncher.getHotseat().setAlpha(hotseatAlpha); 1556 mPageIndicator.setAlpha(pageIndicatorAlpha); 1557 } 1558 1559 public ValueAnimator createHotseatAlphaAnimator(float finalValue) { 1560 if (Float.compare(finalValue, mHotseatAlpha[HOTSEAT_STATE_ALPHA_INDEX]) == 0) { 1561 // Return a dummy animator to avoid null checks. 1562 return ValueAnimator.ofFloat(0, 0); 1563 } else { 1564 ValueAnimator animator = ValueAnimator 1565 .ofFloat(mHotseatAlpha[HOTSEAT_STATE_ALPHA_INDEX], finalValue); 1566 animator.addUpdateListener(new AnimatorUpdateListener() { 1567 @Override 1568 public void onAnimationUpdate(ValueAnimator valueAnimator) { 1569 float value = (Float) valueAnimator.getAnimatedValue(); 1570 setHotseatAlphaAtIndex(value, HOTSEAT_STATE_ALPHA_INDEX); 1571 } 1572 }); 1573 1574 AccessibilityManager am = (AccessibilityManager) 1575 mLauncher.getSystemService(Context.ACCESSIBILITY_SERVICE); 1576 final boolean accessibilityEnabled = am.isEnabled(); 1577 animator.addUpdateListener( 1578 new AlphaUpdateListener(mLauncher.getHotseat(), accessibilityEnabled)); 1579 animator.addUpdateListener( 1580 new AlphaUpdateListener(mPageIndicator, accessibilityEnabled)); 1581 return animator; 1582 } 1583 } 1584 1585 @Override 1586 protected void getEdgeVerticalPosition(int[] pos) { 1587 View child = getChildAt(getPageCount() - 1); 1588 pos[0] = child.getTop(); 1589 pos[1] = child.getBottom(); 1590 } 1591 1592 @Override 1593 protected void notifyPageSwitchListener() { 1594 super.notifyPageSwitchListener(); 1595 1596 if (hasCustomContent() && getNextPage() == 0 && !mCustomContentShowing) { 1597 mCustomContentShowing = true; 1598 if (mCustomContentCallbacks != null) { 1599 mCustomContentCallbacks.onShow(false); 1600 mCustomContentShowTime = System.currentTimeMillis(); 1601 } 1602 } else if (hasCustomContent() && getNextPage() != 0 && mCustomContentShowing) { 1603 mCustomContentShowing = false; 1604 if (mCustomContentCallbacks != null) { 1605 mCustomContentCallbacks.onHide(); 1606 } 1607 } 1608 } 1609 1610 protected CustomContentCallbacks getCustomContentCallbacks() { 1611 return mCustomContentCallbacks; 1612 } 1613 1614 protected void setWallpaperDimension() { 1615 Utilities.THREAD_POOL_EXECUTOR.execute(new Runnable() { 1616 @Override 1617 public void run() { 1618 final Point size = LauncherAppState.getIDP(getContext()).defaultWallpaperSize; 1619 if (size.x != mWallpaperManager.getDesiredMinimumWidth() 1620 || size.y != mWallpaperManager.getDesiredMinimumHeight()) { 1621 mWallpaperManager.suggestDesiredDimensions(size.x, size.y); 1622 } 1623 } 1624 }); 1625 } 1626 1627 public void lockWallpaperToDefaultPage() { 1628 mWallpaperOffset.setLockToDefaultPage(true); 1629 } 1630 1631 public void unlockWallpaperFromDefaultPageOnNextLayout() { 1632 if (mWallpaperOffset.isLockedToDefaultPage()) { 1633 mUnlockWallpaperFromDefaultPageOnLayout = true; 1634 requestLayout(); 1635 } 1636 } 1637 1638 protected void snapToPage(int whichPage, Runnable r) { 1639 snapToPage(whichPage, SLOW_PAGE_SNAP_ANIMATION_DURATION, r); 1640 } 1641 1642 protected void snapToPage(int whichPage, int duration, Runnable r) { 1643 if (mDelayedSnapToPageRunnable != null) { 1644 mDelayedSnapToPageRunnable.run(); 1645 } 1646 mDelayedSnapToPageRunnable = r; 1647 snapToPage(whichPage, duration); 1648 } 1649 1650 public void snapToScreenId(long screenId) { 1651 snapToScreenId(screenId, null); 1652 } 1653 1654 protected void snapToScreenId(long screenId, Runnable r) { 1655 snapToPage(getPageIndexForScreenId(screenId), r); 1656 } 1657 1658 @Override 1659 public void computeScroll() { 1660 super.computeScroll(); 1661 mWallpaperOffset.syncWithScroll(); 1662 } 1663 1664 public void computeScrollWithoutInvalidation() { 1665 computeScrollHelper(false); 1666 } 1667 1668 @Override 1669 protected void determineScrollingStart(MotionEvent ev, float touchSlopScale) { 1670 if (!isSwitchingState()) { 1671 super.determineScrollingStart(ev, touchSlopScale); 1672 } 1673 } 1674 1675 @Override 1676 public void announceForAccessibility(CharSequence text) { 1677 // Don't announce if apps is on top of us. 1678 if (!mLauncher.isAppsViewVisible()) { 1679 super.announceForAccessibility(text); 1680 } 1681 } 1682 1683 public void showOutlinesTemporarily() { 1684 if (!mIsPageInTransition && !isTouchActive()) { 1685 snapToPage(mCurrentPage); 1686 } 1687 } 1688 1689 private void updatePageAlphaValues() { 1690 if (mWorkspaceFadeInAdjacentScreens && 1691 !workspaceInModalState() && 1692 !mIsSwitchingState) { 1693 int screenCenter = getScrollX() + getViewportWidth() / 2; 1694 for (int i = numCustomPages(); i < getChildCount(); i++) { 1695 CellLayout child = (CellLayout) getChildAt(i); 1696 if (child != null) { 1697 float scrollProgress = getScrollProgress(screenCenter, child, i); 1698 float alpha = 1 - Math.abs(scrollProgress); 1699 child.getShortcutsAndWidgets().setAlpha(alpha); 1700 1701 if (isQsbContainerPage(i)) { 1702 mQsbAlphaController.setAlphaAtIndex(alpha, QSB_ALPHA_INDEX_PAGE_SCROLL); 1703 } 1704 } 1705 } 1706 } 1707 } 1708 1709 public boolean hasCustomContent() { 1710 return (mScreenOrder.size() > 0 && mScreenOrder.get(0) == CUSTOM_CONTENT_SCREEN_ID); 1711 } 1712 1713 public int numCustomPages() { 1714 return hasCustomContent() ? 1 : 0; 1715 } 1716 1717 public boolean isOnOrMovingToCustomContent() { 1718 return hasCustomContent() && getNextPage() == 0; 1719 } 1720 1721 private void updateStateForCustomContent() { 1722 float translationX = 0; 1723 float progress = 0; 1724 if (hasCustomContent()) { 1725 int index = mScreenOrder.indexOf(CUSTOM_CONTENT_SCREEN_ID); 1726 1727 int scrollDelta = getScrollX() - getScrollForPage(index) - 1728 getLayoutTransitionOffsetForPage(index); 1729 float scrollRange = getScrollForPage(index + 1) - getScrollForPage(index); 1730 translationX = scrollRange - scrollDelta; 1731 progress = (scrollRange - scrollDelta) / scrollRange; 1732 1733 if (mIsRtl) { 1734 translationX = Math.min(0, translationX); 1735 } else { 1736 translationX = Math.max(0, translationX); 1737 } 1738 progress = Math.max(0, progress); 1739 } 1740 1741 if (Float.compare(progress, mLastCustomContentScrollProgress) == 0) return; 1742 1743 CellLayout cc = mWorkspaceScreens.get(CUSTOM_CONTENT_SCREEN_ID); 1744 if (progress > 0 && cc.getVisibility() != VISIBLE && !workspaceInModalState()) { 1745 cc.setVisibility(VISIBLE); 1746 } 1747 1748 mLastCustomContentScrollProgress = progress; 1749 1750 // We should only update the drag layer background alpha if we are not in all apps or the 1751 // widgets tray 1752 if (mState == State.NORMAL) { 1753 mLauncher.getDragLayer().setBackgroundAlpha(progress == 1 ? 0 : progress * 0.8f); 1754 } 1755 1756 if (mLauncher.getHotseat() != null) { 1757 mLauncher.getHotseat().setTranslationX(translationX); 1758 } 1759 1760 if (mPageIndicator != null) { 1761 mPageIndicator.setTranslationX(translationX); 1762 } 1763 1764 if (mCustomContentCallbacks != null) { 1765 mCustomContentCallbacks.onScrollProgressChanged(progress); 1766 } 1767 } 1768 1769 protected void onAttachedToWindow() { 1770 super.onAttachedToWindow(); 1771 IBinder windowToken = getWindowToken(); 1772 mWallpaperOffset.setWindowToken(windowToken); 1773 computeScroll(); 1774 mDragController.setWindowToken(windowToken); 1775 } 1776 1777 protected void onDetachedFromWindow() { 1778 super.onDetachedFromWindow(); 1779 mWallpaperOffset.setWindowToken(null); 1780 } 1781 1782 protected void onResume() { 1783 mWallpaperOffset.onResume(); 1784 } 1785 1786 @Override 1787 protected void onLayout(boolean changed, int left, int top, int right, int bottom) { 1788 if (mUnlockWallpaperFromDefaultPageOnLayout) { 1789 mWallpaperOffset.setLockToDefaultPage(false); 1790 mUnlockWallpaperFromDefaultPageOnLayout = false; 1791 } 1792 if (mFirstLayout && mCurrentPage >= 0 && mCurrentPage < getChildCount()) { 1793 mWallpaperOffset.syncWithScroll(); 1794 mWallpaperOffset.jumpToFinal(); 1795 } 1796 super.onLayout(changed, left, top, right, bottom); 1797 mFirstPageScrollX = getScrollForPage(0); 1798 onWorkspaceOverallScrollChanged(); 1799 1800 final LayoutTransition transition = getLayoutTransition(); 1801 // If the transition is running defer updating max scroll, as some empty pages could 1802 // still be present, and a max scroll change could cause sudden jumps in scroll. 1803 if (transition != null && transition.isRunning()) { 1804 transition.addTransitionListener(new LayoutTransition.TransitionListener() { 1805 1806 @Override 1807 public void startTransition(LayoutTransition transition, ViewGroup container, 1808 View view, int transitionType) { 1809 mIgnoreQsbScroll = true; 1810 } 1811 1812 @Override 1813 public void endTransition(LayoutTransition transition, ViewGroup container, 1814 View view, int transitionType) { 1815 // Wait until all transitions are complete. 1816 if (!transition.isRunning()) { 1817 mIgnoreQsbScroll = false; 1818 transition.removeTransitionListener(this); 1819 mFirstPageScrollX = getScrollForPage(0); 1820 onWorkspaceOverallScrollChanged(); 1821 } 1822 } 1823 }); 1824 } 1825 updatePageAlphaValues(); 1826 } 1827 1828 @Override 1829 public int getDescendantFocusability() { 1830 if (workspaceInModalState()) { 1831 return ViewGroup.FOCUS_BLOCK_DESCENDANTS; 1832 } 1833 return super.getDescendantFocusability(); 1834 } 1835 1836 public boolean workspaceInModalState() { 1837 return mState != State.NORMAL; 1838 } 1839 1840 /** Returns whether a drag should be allowed to be started from the current workspace state. */ 1841 public boolean workspaceIconsCanBeDragged() { 1842 return mState == State.NORMAL || mState == State.SPRING_LOADED; 1843 } 1844 1845 @Thunk void updateChildrenLayersEnabled(boolean force) { 1846 boolean small = mState == State.OVERVIEW || mIsSwitchingState; 1847 boolean enableChildrenLayers = force || small || mAnimatingViewIntoPlace || isPageInTransition(); 1848 1849 if (enableChildrenLayers != mChildrenLayersEnabled) { 1850 mChildrenLayersEnabled = enableChildrenLayers; 1851 if (mChildrenLayersEnabled) { 1852 enableHwLayersOnVisiblePages(); 1853 } else { 1854 for (int i = 0; i < getPageCount(); i++) { 1855 final CellLayout cl = (CellLayout) getChildAt(i); 1856 cl.enableHardwareLayer(false); 1857 } 1858 } 1859 } 1860 } 1861 1862 private void enableHwLayersOnVisiblePages() { 1863 if (mChildrenLayersEnabled) { 1864 final int screenCount = getChildCount(); 1865 1866 float visibleLeft = getViewportOffsetX(); 1867 float visibleRight = visibleLeft + getViewportWidth(); 1868 float scaleX = getScaleX(); 1869 if (scaleX < 1 && scaleX > 0) { 1870 float mid = getMeasuredWidth() / 2; 1871 visibleLeft = mid - ((mid - visibleLeft) / scaleX); 1872 visibleRight = mid + ((visibleRight - mid) / scaleX); 1873 } 1874 1875 int leftScreen = -1; 1876 int rightScreen = -1; 1877 for (int i = numCustomPages(); i < screenCount; i++) { 1878 final View child = getPageAt(i); 1879 1880 float left = child.getLeft() + child.getTranslationX() - getScrollX(); 1881 if (left <= visibleRight && (left + child.getMeasuredWidth()) >= visibleLeft) { 1882 if (leftScreen == -1) { 1883 leftScreen = i; 1884 } 1885 rightScreen = i; 1886 } 1887 } 1888 if (mForceDrawAdjacentPages) { 1889 // In overview mode, make sure that the two side pages are visible. 1890 leftScreen = Utilities.boundToRange(getCurrentPage() - 1, 1891 numCustomPages(), rightScreen); 1892 rightScreen = Utilities.boundToRange(getCurrentPage() + 1, 1893 leftScreen, getPageCount() - 1); 1894 } 1895 1896 if (leftScreen == rightScreen) { 1897 // make sure we're caching at least two pages always 1898 if (rightScreen < screenCount - 1) { 1899 rightScreen++; 1900 } else if (leftScreen > 0) { 1901 leftScreen--; 1902 } 1903 } 1904 1905 for (int i = numCustomPages(); i < screenCount; i++) { 1906 final CellLayout layout = (CellLayout) getPageAt(i); 1907 // enable layers between left and right screen inclusive. 1908 boolean enableLayer = leftScreen <= i && i <= rightScreen; 1909 layout.enableHardwareLayer(enableLayer); 1910 } 1911 } 1912 } 1913 1914 public void buildPageHardwareLayers() { 1915 // force layers to be enabled just for the call to buildLayer 1916 updateChildrenLayersEnabled(true); 1917 if (getWindowToken() != null) { 1918 final int childCount = getChildCount(); 1919 for (int i = 0; i < childCount; i++) { 1920 CellLayout cl = (CellLayout) getChildAt(i); 1921 cl.buildHardwareLayer(); 1922 } 1923 } 1924 updateChildrenLayersEnabled(false); 1925 } 1926 1927 protected void onWallpaperTap(MotionEvent ev) { 1928 final int[] position = mTempXY; 1929 getLocationOnScreen(position); 1930 1931 int pointerIndex = ev.getActionIndex(); 1932 position[0] += (int) ev.getX(pointerIndex); 1933 position[1] += (int) ev.getY(pointerIndex); 1934 1935 mWallpaperManager.sendWallpaperCommand(getWindowToken(), 1936 ev.getAction() == MotionEvent.ACTION_UP 1937 ? WallpaperManager.COMMAND_TAP : WallpaperManager.COMMAND_SECONDARY_TAP, 1938 position[0], position[1], 0, null); 1939 } 1940 1941 public void prepareDragWithProvider(DragPreviewProvider outlineProvider) { 1942 mOutlineProvider = outlineProvider; 1943 } 1944 1945 public void exitWidgetResizeMode() { 1946 DragLayer dragLayer = mLauncher.getDragLayer(); 1947 dragLayer.clearResizeFrame(); 1948 } 1949 1950 @Override 1951 protected void getFreeScrollPageRange(int[] range) { 1952 getOverviewModePages(range); 1953 } 1954 1955 private void getOverviewModePages(int[] range) { 1956 int start = numCustomPages(); 1957 int end = getChildCount() - 1; 1958 1959 range[0] = Math.max(0, Math.min(start, getChildCount() - 1)); 1960 range[1] = Math.max(0, end); 1961 } 1962 1963 public void onStartReordering() { 1964 super.onStartReordering(); 1965 // Reordering handles its own animations, disable the automatic ones. 1966 disableLayoutTransitions(); 1967 } 1968 1969 public void onEndReordering() { 1970 super.onEndReordering(); 1971 1972 if (mLauncher.isWorkspaceLoading()) { 1973 // Invalid and dangerous operation if workspace is loading 1974 return; 1975 } 1976 1977 mScreenOrder.clear(); 1978 int count = getChildCount(); 1979 for (int i = 0; i < count; i++) { 1980 CellLayout cl = ((CellLayout) getChildAt(i)); 1981 mScreenOrder.add(getIdForScreen(cl)); 1982 } 1983 mLauncher.getUserEventDispatcher().logOverviewReorder(); 1984 mLauncher.getModel().updateWorkspaceScreenOrder(mLauncher, mScreenOrder); 1985 1986 // Re-enable auto layout transitions for page deletion. 1987 enableLayoutTransitions(); 1988 } 1989 1990 public boolean isInOverviewMode() { 1991 return mState == State.OVERVIEW; 1992 } 1993 1994 public void snapToPageFromOverView(int whichPage) { 1995 mStateTransitionAnimation.snapToPageFromOverView(whichPage); 1996 } 1997 1998 int getOverviewModeTranslationY() { 1999 DeviceProfile grid = mLauncher.getDeviceProfile(); 2000 int overviewButtonBarHeight = grid.getOverviewModeButtonBarHeight(); 2001 2002 int scaledHeight = (int) (mOverviewModeShrinkFactor * getNormalChildHeight()); 2003 Rect workspacePadding = grid.getWorkspacePadding(sTempRect); 2004 int workspaceTop = mInsets.top + workspacePadding.top; 2005 int workspaceBottom = getViewportHeight() - mInsets.bottom - workspacePadding.bottom; 2006 int overviewTop = mInsets.top; 2007 int overviewBottom = getViewportHeight() - mInsets.bottom - overviewButtonBarHeight; 2008 int workspaceOffsetTopEdge = workspaceTop + ((workspaceBottom - workspaceTop) - scaledHeight) / 2; 2009 int overviewOffsetTopEdge = overviewTop + (overviewBottom - overviewTop - scaledHeight) / 2; 2010 return -workspaceOffsetTopEdge + overviewOffsetTopEdge; 2011 } 2012 2013 float getSpringLoadedTranslationY() { 2014 DeviceProfile grid = mLauncher.getDeviceProfile(); 2015 if (grid.isVerticalBarLayout() || getChildCount() == 0) { 2016 return 0; 2017 } 2018 2019 float scaledHeight = grid.workspaceSpringLoadShrinkFactor * getNormalChildHeight(); 2020 float shrunkTop = mInsets.top + grid.dropTargetBarSizePx; 2021 float shrunkBottom = getViewportHeight() - mInsets.bottom 2022 - grid.getWorkspacePadding(sTempRect).bottom 2023 - grid.workspaceSpringLoadedBottomSpace; 2024 float totalShrunkSpace = shrunkBottom - shrunkTop; 2025 2026 float desiredCellTop = shrunkTop + (totalShrunkSpace - scaledHeight) / 2; 2027 2028 float halfHeight = getHeight() / 2; 2029 float myCenter = getTop() + halfHeight; 2030 float cellTopFromCenter = halfHeight - getChildAt(0).getTop(); 2031 float actualCellTop = myCenter - cellTopFromCenter * grid.workspaceSpringLoadShrinkFactor; 2032 return (desiredCellTop - actualCellTop) / grid.workspaceSpringLoadShrinkFactor; 2033 } 2034 2035 float getOverviewModeShrinkFactor() { 2036 return mOverviewModeShrinkFactor; 2037 } 2038 2039 /** 2040 * Sets the current workspace {@link State}, returning an animation transitioning the workspace 2041 * to that new state. 2042 */ 2043 public Animator setStateWithAnimation(State toState, boolean animated, 2044 AnimationLayerSet layerViews) { 2045 final State fromState = mState; 2046 2047 // Update the current state 2048 mState = toState; 2049 2050 // Create the animation to the new state 2051 AnimatorSet workspaceAnim = mStateTransitionAnimation.getAnimationToState(fromState, 2052 toState, animated, layerViews); 2053 2054 boolean shouldNotifyWidgetChange = !fromState.shouldUpdateWidget 2055 && toState.shouldUpdateWidget; 2056 2057 updateAccessibilityFlags(); 2058 2059 if (shouldNotifyWidgetChange) { 2060 mLauncher.notifyWidgetProvidersChanged(); 2061 } 2062 2063 if (mOnStateChangeListener != null) { 2064 mOnStateChangeListener.prepareStateChange(toState, animated ? workspaceAnim : null); 2065 } 2066 2067 onPrepareStateTransition(mState.hasMultipleVisiblePages); 2068 2069 StateTransitionListener listener = new StateTransitionListener(); 2070 if (animated) { 2071 ValueAnimator stepAnimator = ValueAnimator.ofFloat(0, 1); 2072 stepAnimator.addUpdateListener(listener); 2073 2074 workspaceAnim.play(stepAnimator); 2075 workspaceAnim.addListener(listener); 2076 } else { 2077 listener.onAnimationStart(null); 2078 listener.onAnimationEnd(null); 2079 } 2080 2081 return workspaceAnim; 2082 } 2083 2084 public State getState() { 2085 return mState; 2086 } 2087 2088 public void updateAccessibilityFlags() { 2089 // TODO: Update the accessibility flags appropriately when dragging. 2090 if (!mLauncher.getAccessibilityDelegate().isInAccessibleDrag()) { 2091 int total = getPageCount(); 2092 for (int i = numCustomPages(); i < total; i++) { 2093 updateAccessibilityFlags((CellLayout) getPageAt(i), i); 2094 } 2095 setImportantForAccessibility((mState == State.NORMAL || mState == State.OVERVIEW) 2096 ? IMPORTANT_FOR_ACCESSIBILITY_AUTO 2097 : IMPORTANT_FOR_ACCESSIBILITY_NO_HIDE_DESCENDANTS); 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 PopupContainerWithArrow popupContainer = PopupContainerWithArrow 2275 .showForIcon((BubbleTextView) child); 2276 if (popupContainer != null) { 2277 dragOptions.preDragCondition = popupContainer.createPreDragCondition(); 2278 2279 mLauncher.getUserEventDispatcher().resetElapsedContainerMillis(); 2280 } 2281 } 2282 2283 DragView dv = mDragController.startDrag(b, dragLayerX, dragLayerY, source, 2284 dragObject, dragVisualizeOffset, dragRect, scale, dragOptions); 2285 dv.setIntrinsicIconScaleFactor(source.getIntrinsicIconScaleFactor()); 2286 b.recycle(); 2287 return dv; 2288 } 2289 2290 private boolean transitionStateShouldAllowDrop() { 2291 return ((!isSwitchingState() || mTransitionProgress > ALLOW_DROP_TRANSITION_PROGRESS) && 2292 (mState == State.NORMAL || mState == State.SPRING_LOADED)); 2293 } 2294 2295 /** 2296 * {@inheritDoc} 2297 */ 2298 public boolean acceptDrop(DragObject d) { 2299 // If it's an external drop (e.g. from All Apps), check if it should be accepted 2300 CellLayout dropTargetLayout = mDropToLayout; 2301 if (d.dragSource != this) { 2302 // Don't accept the drop if we're not over a screen at time of drop 2303 if (dropTargetLayout == null) { 2304 return false; 2305 } 2306 if (!transitionStateShouldAllowDrop()) return false; 2307 2308 mDragViewVisualCenter = d.getVisualCenter(mDragViewVisualCenter); 2309 2310 // We want the point to be mapped to the dragTarget. 2311 if (mLauncher.isHotseatLayout(dropTargetLayout)) { 2312 mapPointFromSelfToHotseatLayout(mLauncher.getHotseat(), mDragViewVisualCenter); 2313 } else { 2314 mapPointFromSelfToChild(dropTargetLayout, mDragViewVisualCenter); 2315 } 2316 2317 int spanX = 1; 2318 int spanY = 1; 2319 if (mDragInfo != null) { 2320 final CellLayout.CellInfo dragCellInfo = mDragInfo; 2321 spanX = dragCellInfo.spanX; 2322 spanY = dragCellInfo.spanY; 2323 } else { 2324 spanX = d.dragInfo.spanX; 2325 spanY = d.dragInfo.spanY; 2326 } 2327 2328 int minSpanX = spanX; 2329 int minSpanY = spanY; 2330 if (d.dragInfo instanceof PendingAddWidgetInfo) { 2331 minSpanX = ((PendingAddWidgetInfo) d.dragInfo).minSpanX; 2332 minSpanY = ((PendingAddWidgetInfo) d.dragInfo).minSpanY; 2333 } 2334 2335 mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], 2336 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, dropTargetLayout, 2337 mTargetCell); 2338 float distance = dropTargetLayout.getDistanceFromCell(mDragViewVisualCenter[0], 2339 mDragViewVisualCenter[1], mTargetCell); 2340 if (mCreateUserFolderOnDrop && willCreateUserFolder(d.dragInfo, 2341 dropTargetLayout, mTargetCell, distance, true)) { 2342 return true; 2343 } 2344 2345 if (mAddToExistingFolderOnDrop && willAddToExistingUserFolder(d.dragInfo, 2346 dropTargetLayout, mTargetCell, distance)) { 2347 return true; 2348 } 2349 2350 int[] resultSpan = new int[2]; 2351 mTargetCell = dropTargetLayout.performReorder((int) mDragViewVisualCenter[0], 2352 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, spanX, spanY, 2353 null, mTargetCell, resultSpan, CellLayout.MODE_ACCEPT_DROP); 2354 boolean foundCell = mTargetCell[0] >= 0 && mTargetCell[1] >= 0; 2355 2356 // Don't accept the drop if there's no room for the item 2357 if (!foundCell) { 2358 onNoCellFound(dropTargetLayout); 2359 return false; 2360 } 2361 } 2362 2363 long screenId = getIdForScreen(dropTargetLayout); 2364 if (screenId == EXTRA_EMPTY_SCREEN_ID) { 2365 commitExtraEmptyScreen(); 2366 } 2367 2368 return true; 2369 } 2370 2371 boolean willCreateUserFolder(ItemInfo info, CellLayout target, int[] targetCell, 2372 float distance, boolean considerTimeout) { 2373 if (distance > mMaxDistanceForFolderCreation) return false; 2374 View dropOverView = target.getChildAt(targetCell[0], targetCell[1]); 2375 return willCreateUserFolder(info, dropOverView, considerTimeout); 2376 } 2377 2378 boolean willCreateUserFolder(ItemInfo info, View dropOverView, boolean considerTimeout) { 2379 if (dropOverView != null) { 2380 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) dropOverView.getLayoutParams(); 2381 if (lp.useTmpCoords && (lp.tmpCellX != lp.cellX || lp.tmpCellY != lp.cellY)) { 2382 return false; 2383 } 2384 } 2385 2386 boolean hasntMoved = false; 2387 if (mDragInfo != null) { 2388 hasntMoved = dropOverView == mDragInfo.cell; 2389 } 2390 2391 if (dropOverView == null || hasntMoved || (considerTimeout && !mCreateUserFolderOnDrop)) { 2392 return false; 2393 } 2394 2395 boolean aboveShortcut = (dropOverView.getTag() instanceof ShortcutInfo); 2396 boolean willBecomeShortcut = 2397 (info.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPLICATION || 2398 info.itemType == LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT || 2399 info.itemType == LauncherSettings.Favorites.ITEM_TYPE_DEEP_SHORTCUT); 2400 2401 return (aboveShortcut && willBecomeShortcut); 2402 } 2403 2404 boolean willAddToExistingUserFolder(ItemInfo dragInfo, CellLayout target, int[] targetCell, 2405 float distance) { 2406 if (distance > mMaxDistanceForFolderCreation) return false; 2407 View dropOverView = target.getChildAt(targetCell[0], targetCell[1]); 2408 return willAddToExistingUserFolder(dragInfo, dropOverView); 2409 2410 } 2411 boolean willAddToExistingUserFolder(ItemInfo dragInfo, View dropOverView) { 2412 if (dropOverView != null) { 2413 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) dropOverView.getLayoutParams(); 2414 if (lp.useTmpCoords && (lp.tmpCellX != lp.cellX || lp.tmpCellY != lp.cellY)) { 2415 return false; 2416 } 2417 } 2418 2419 if (dropOverView instanceof FolderIcon) { 2420 FolderIcon fi = (FolderIcon) dropOverView; 2421 if (fi.acceptDrop(dragInfo)) { 2422 return true; 2423 } 2424 } 2425 return false; 2426 } 2427 2428 boolean createUserFolderIfNecessary(View newView, long container, CellLayout target, 2429 int[] targetCell, float distance, boolean external, DragView dragView, 2430 Runnable postAnimationRunnable) { 2431 if (distance > mMaxDistanceForFolderCreation) return false; 2432 View v = target.getChildAt(targetCell[0], targetCell[1]); 2433 2434 boolean hasntMoved = false; 2435 if (mDragInfo != null) { 2436 CellLayout cellParent = getParentCellLayoutForView(mDragInfo.cell); 2437 hasntMoved = (mDragInfo.cellX == targetCell[0] && 2438 mDragInfo.cellY == targetCell[1]) && (cellParent == target); 2439 } 2440 2441 if (v == null || hasntMoved || !mCreateUserFolderOnDrop) return false; 2442 mCreateUserFolderOnDrop = false; 2443 final long screenId = getIdForScreen(target); 2444 2445 boolean aboveShortcut = (v.getTag() instanceof ShortcutInfo); 2446 boolean willBecomeShortcut = (newView.getTag() instanceof ShortcutInfo); 2447 2448 if (aboveShortcut && willBecomeShortcut) { 2449 ShortcutInfo sourceInfo = (ShortcutInfo) newView.getTag(); 2450 ShortcutInfo destInfo = (ShortcutInfo) v.getTag(); 2451 // if the drag started here, we need to remove it from the workspace 2452 if (!external) { 2453 getParentCellLayoutForView(mDragInfo.cell).removeView(mDragInfo.cell); 2454 } 2455 2456 Rect folderLocation = new Rect(); 2457 float scale = mLauncher.getDragLayer().getDescendantRectRelativeToSelf(v, folderLocation); 2458 target.removeView(v); 2459 2460 FolderIcon fi = 2461 mLauncher.addFolder(target, container, screenId, targetCell[0], targetCell[1]); 2462 destInfo.cellX = -1; 2463 destInfo.cellY = -1; 2464 sourceInfo.cellX = -1; 2465 sourceInfo.cellY = -1; 2466 2467 // If the dragView is null, we can't animate 2468 boolean animate = dragView != null; 2469 if (animate) { 2470 // In order to keep everything continuous, we hand off the currently rendered 2471 // folder background to the newly created icon. This preserves animation state. 2472 fi.setFolderBackground(mFolderCreateBg); 2473 mFolderCreateBg = new FolderIcon.PreviewBackground(); 2474 fi.performCreateAnimation(destInfo, v, sourceInfo, dragView, folderLocation, scale, 2475 postAnimationRunnable); 2476 } else { 2477 fi.prepareCreate(v); 2478 fi.addItem(destInfo); 2479 fi.addItem(sourceInfo); 2480 } 2481 return true; 2482 } 2483 return false; 2484 } 2485 2486 boolean addToExistingFolderIfNecessary(View newView, CellLayout target, int[] targetCell, 2487 float distance, DragObject d, boolean external) { 2488 if (distance > mMaxDistanceForFolderCreation) return false; 2489 2490 View dropOverView = target.getChildAt(targetCell[0], targetCell[1]); 2491 if (!mAddToExistingFolderOnDrop) return false; 2492 mAddToExistingFolderOnDrop = false; 2493 2494 if (dropOverView instanceof FolderIcon) { 2495 FolderIcon fi = (FolderIcon) dropOverView; 2496 if (fi.acceptDrop(d.dragInfo)) { 2497 fi.onDrop(d); 2498 2499 // if the drag started here, we need to remove it from the workspace 2500 if (!external) { 2501 getParentCellLayoutForView(mDragInfo.cell).removeView(mDragInfo.cell); 2502 } 2503 return true; 2504 } 2505 } 2506 return false; 2507 } 2508 2509 @Override 2510 public void prepareAccessibilityDrop() { } 2511 2512 public void onDrop(final DragObject d) { 2513 mDragViewVisualCenter = d.getVisualCenter(mDragViewVisualCenter); 2514 CellLayout dropTargetLayout = mDropToLayout; 2515 2516 // We want the point to be mapped to the dragTarget. 2517 if (dropTargetLayout != null) { 2518 if (mLauncher.isHotseatLayout(dropTargetLayout)) { 2519 mapPointFromSelfToHotseatLayout(mLauncher.getHotseat(), mDragViewVisualCenter); 2520 } else { 2521 mapPointFromSelfToChild(dropTargetLayout, mDragViewVisualCenter); 2522 } 2523 } 2524 2525 int snapScreen = -1; 2526 boolean resizeOnDrop = false; 2527 if (d.dragSource != this) { 2528 final int[] touchXY = new int[] { (int) mDragViewVisualCenter[0], 2529 (int) mDragViewVisualCenter[1] }; 2530 onDropExternal(touchXY, dropTargetLayout, d); 2531 } else if (mDragInfo != null) { 2532 final View cell = mDragInfo.cell; 2533 boolean droppedOnOriginalCellDuringTransition = false; 2534 2535 if (dropTargetLayout != null && !d.cancelled) { 2536 // Move internally 2537 boolean hasMovedLayouts = (getParentCellLayoutForView(cell) != dropTargetLayout); 2538 boolean hasMovedIntoHotseat = mLauncher.isHotseatLayout(dropTargetLayout); 2539 long container = hasMovedIntoHotseat ? 2540 LauncherSettings.Favorites.CONTAINER_HOTSEAT : 2541 LauncherSettings.Favorites.CONTAINER_DESKTOP; 2542 long screenId = (mTargetCell[0] < 0) ? 2543 mDragInfo.screenId : getIdForScreen(dropTargetLayout); 2544 int spanX = mDragInfo != null ? mDragInfo.spanX : 1; 2545 int spanY = mDragInfo != null ? mDragInfo.spanY : 1; 2546 // First we find the cell nearest to point at which the item is 2547 // dropped, without any consideration to whether there is an item there. 2548 2549 mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], (int) 2550 mDragViewVisualCenter[1], spanX, spanY, dropTargetLayout, mTargetCell); 2551 float distance = dropTargetLayout.getDistanceFromCell(mDragViewVisualCenter[0], 2552 mDragViewVisualCenter[1], mTargetCell); 2553 2554 // If the item being dropped is a shortcut and the nearest drop 2555 // cell also contains a shortcut, then create a folder with the two shortcuts. 2556 if (createUserFolderIfNecessary(cell, container, 2557 dropTargetLayout, mTargetCell, distance, false, d.dragView, null)) { 2558 return; 2559 } 2560 2561 if (addToExistingFolderIfNecessary(cell, dropTargetLayout, mTargetCell, 2562 distance, d, false)) { 2563 return; 2564 } 2565 2566 // Aside from the special case where we're dropping a shortcut onto a shortcut, 2567 // we need to find the nearest cell location that is vacant 2568 ItemInfo item = d.dragInfo; 2569 int minSpanX = item.spanX; 2570 int minSpanY = item.spanY; 2571 if (item.minSpanX > 0 && item.minSpanY > 0) { 2572 minSpanX = item.minSpanX; 2573 minSpanY = item.minSpanY; 2574 } 2575 2576 droppedOnOriginalCellDuringTransition = mIsSwitchingState 2577 && item.screenId == screenId && item.container == container 2578 && item.cellX == mTargetCell[0] && item.cellY == mTargetCell[1]; 2579 2580 // When quickly moving an item, a user may accidentally rearrange their 2581 // workspace. So instead we move the icon back safely to its original position. 2582 boolean returnToOriginalCellToPreventShuffling = !isFinishedSwitchingState() 2583 && !droppedOnOriginalCellDuringTransition && !dropTargetLayout 2584 .isRegionVacant(mTargetCell[0], mTargetCell[1], spanX, spanY); 2585 int[] resultSpan = new int[2]; 2586 if (returnToOriginalCellToPreventShuffling) { 2587 mTargetCell[0] = mTargetCell[1] = -1; 2588 } else { 2589 mTargetCell = dropTargetLayout.performReorder((int) mDragViewVisualCenter[0], 2590 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, spanX, spanY, cell, 2591 mTargetCell, resultSpan, CellLayout.MODE_ON_DROP); 2592 } 2593 2594 boolean foundCell = mTargetCell[0] >= 0 && mTargetCell[1] >= 0; 2595 2596 // if the widget resizes on drop 2597 if (foundCell && (cell instanceof AppWidgetHostView) && 2598 (resultSpan[0] != item.spanX || resultSpan[1] != item.spanY)) { 2599 resizeOnDrop = true; 2600 item.spanX = resultSpan[0]; 2601 item.spanY = resultSpan[1]; 2602 AppWidgetHostView awhv = (AppWidgetHostView) cell; 2603 AppWidgetResizeFrame.updateWidgetSizeRanges(awhv, mLauncher, resultSpan[0], 2604 resultSpan[1]); 2605 } 2606 2607 if (foundCell) { 2608 if (getScreenIdForPageIndex(mCurrentPage) != screenId && !hasMovedIntoHotseat) { 2609 snapScreen = getPageIndexForScreenId(screenId); 2610 snapToPage(snapScreen); 2611 } 2612 2613 final ItemInfo info = (ItemInfo) cell.getTag(); 2614 if (hasMovedLayouts) { 2615 // Reparent the view 2616 CellLayout parentCell = getParentCellLayoutForView(cell); 2617 if (parentCell != null) { 2618 parentCell.removeView(cell); 2619 } else if (ProviderConfig.IS_DOGFOOD_BUILD) { 2620 throw new NullPointerException("mDragInfo.cell has null parent"); 2621 } 2622 addInScreen(cell, container, screenId, mTargetCell[0], mTargetCell[1], 2623 info.spanX, info.spanY); 2624 } 2625 2626 // update the item's position after drop 2627 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) cell.getLayoutParams(); 2628 lp.cellX = lp.tmpCellX = mTargetCell[0]; 2629 lp.cellY = lp.tmpCellY = mTargetCell[1]; 2630 lp.cellHSpan = item.spanX; 2631 lp.cellVSpan = item.spanY; 2632 lp.isLockedToGrid = true; 2633 2634 if (container != LauncherSettings.Favorites.CONTAINER_HOTSEAT && 2635 cell instanceof LauncherAppWidgetHostView) { 2636 final CellLayout cellLayout = dropTargetLayout; 2637 // We post this call so that the widget has a chance to be placed 2638 // in its final location 2639 2640 final LauncherAppWidgetHostView hostView = (LauncherAppWidgetHostView) cell; 2641 AppWidgetProviderInfo pInfo = hostView.getAppWidgetInfo(); 2642 if (pInfo != null && pInfo.resizeMode != AppWidgetProviderInfo.RESIZE_NONE 2643 && !d.accessibleDrag) { 2644 mDelayedResizeRunnable = new Runnable() { 2645 public void run() { 2646 if (!isPageInTransition()) { 2647 DragLayer dragLayer = mLauncher.getDragLayer(); 2648 dragLayer.addResizeFrame(hostView, cellLayout); 2649 } 2650 } 2651 }; 2652 } 2653 } 2654 2655 LauncherModel.modifyItemInDatabase(mLauncher, info, container, screenId, lp.cellX, 2656 lp.cellY, item.spanX, item.spanY); 2657 } else { 2658 if (!returnToOriginalCellToPreventShuffling) { 2659 onNoCellFound(dropTargetLayout); 2660 } 2661 2662 // If we can't find a drop location, we return the item to its original position 2663 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) cell.getLayoutParams(); 2664 mTargetCell[0] = lp.cellX; 2665 mTargetCell[1] = lp.cellY; 2666 CellLayout layout = (CellLayout) cell.getParent().getParent(); 2667 layout.markCellsAsOccupiedForView(cell); 2668 } 2669 } 2670 2671 final CellLayout parent = (CellLayout) cell.getParent().getParent(); 2672 // Prepare it to be animated into its new position 2673 // This must be called after the view has been re-parented 2674 final Runnable onCompleteRunnable = new Runnable() { 2675 @Override 2676 public void run() { 2677 mAnimatingViewIntoPlace = false; 2678 updateChildrenLayersEnabled(false); 2679 } 2680 }; 2681 mAnimatingViewIntoPlace = true; 2682 if (d.dragView.hasDrawn()) { 2683 if (droppedOnOriginalCellDuringTransition) { 2684 // Animate the item to its original position, while simultaneously exiting 2685 // spring-loaded mode so the page meets the icon where it was picked up. 2686 mLauncher.getDragController().animateDragViewToOriginalPosition( 2687 mDelayedResizeRunnable, cell, 2688 mStateTransitionAnimation.mSpringLoadedTransitionTime); 2689 mLauncher.exitSpringLoadedDragMode(); 2690 mLauncher.getDropTargetBar().onDragEnd(); 2691 parent.onDropChild(cell); 2692 return; 2693 } 2694 final ItemInfo info = (ItemInfo) cell.getTag(); 2695 boolean isWidget = info.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET 2696 || info.itemType == LauncherSettings.Favorites.ITEM_TYPE_CUSTOM_APPWIDGET; 2697 if (isWidget) { 2698 int animationType = resizeOnDrop ? ANIMATE_INTO_POSITION_AND_RESIZE : 2699 ANIMATE_INTO_POSITION_AND_DISAPPEAR; 2700 animateWidgetDrop(info, parent, d.dragView, 2701 onCompleteRunnable, animationType, cell, false); 2702 } else { 2703 int duration = snapScreen < 0 ? -1 : ADJACENT_SCREEN_DROP_DURATION; 2704 mLauncher.getDragLayer().animateViewIntoPosition(d.dragView, cell, duration, 2705 onCompleteRunnable, this); 2706 } 2707 } else { 2708 d.deferDragViewCleanupPostAnimation = false; 2709 cell.setVisibility(VISIBLE); 2710 } 2711 parent.onDropChild(cell); 2712 } 2713 if (d.stateAnnouncer != null) { 2714 d.stateAnnouncer.completeAction(R.string.item_moved); 2715 } 2716 } 2717 2718 public void onNoCellFound(View dropTargetLayout) { 2719 if (mLauncher.isHotseatLayout(dropTargetLayout)) { 2720 Hotseat hotseat = mLauncher.getHotseat(); 2721 boolean droppedOnAllAppsIcon = !FeatureFlags.NO_ALL_APPS_ICON 2722 && mTargetCell != null && !mLauncher.getDeviceProfile().inv.isAllAppsButtonRank( 2723 hotseat.getOrderInHotseat(mTargetCell[0], mTargetCell[1])); 2724 if (!droppedOnAllAppsIcon) { 2725 // Only show message when hotseat is full and drop target was not AllApps button 2726 showOutOfSpaceMessage(true); 2727 } 2728 } else { 2729 showOutOfSpaceMessage(false); 2730 } 2731 } 2732 2733 private void showOutOfSpaceMessage(boolean isHotseatLayout) { 2734 int strId = (isHotseatLayout ? R.string.hotseat_out_of_space : R.string.out_of_space); 2735 Toast.makeText(mLauncher, mLauncher.getString(strId), Toast.LENGTH_SHORT).show(); 2736 } 2737 2738 /** 2739 * Computes the area relative to dragLayer which is used to display a page. 2740 */ 2741 public void getPageAreaRelativeToDragLayer(Rect outArea) { 2742 CellLayout child = (CellLayout) getChildAt(getNextPage()); 2743 if (child == null) { 2744 return; 2745 } 2746 ShortcutAndWidgetContainer boundingLayout = child.getShortcutsAndWidgets(); 2747 2748 // Use the absolute left instead of the child left, as we want the visible area 2749 // irrespective of the visible child. Since the view can only scroll horizontally, the 2750 // top position is not affected. 2751 mTempXY[0] = getViewportOffsetX() + getPaddingLeft() + boundingLayout.getLeft(); 2752 mTempXY[1] = child.getTop() + boundingLayout.getTop(); 2753 2754 float scale = mLauncher.getDragLayer().getDescendantCoordRelativeToSelf(this, mTempXY); 2755 outArea.set(mTempXY[0], mTempXY[1], 2756 (int) (mTempXY[0] + scale * boundingLayout.getMeasuredWidth()), 2757 (int) (mTempXY[1] + scale * boundingLayout.getMeasuredHeight())); 2758 } 2759 2760 @Override 2761 public void onDragEnter(DragObject d) { 2762 if (ENFORCE_DRAG_EVENT_ORDER) { 2763 enforceDragParity("onDragEnter", 1, 1); 2764 } 2765 2766 mCreateUserFolderOnDrop = false; 2767 mAddToExistingFolderOnDrop = false; 2768 2769 mDropToLayout = null; 2770 mDragViewVisualCenter = d.getVisualCenter(mDragViewVisualCenter); 2771 setDropLayoutForDragObject(d, mDragViewVisualCenter[0], mDragViewVisualCenter[1]); 2772 } 2773 2774 @Override 2775 public void onDragExit(DragObject d) { 2776 if (ENFORCE_DRAG_EVENT_ORDER) { 2777 enforceDragParity("onDragExit", -1, 0); 2778 } 2779 2780 // Here we store the final page that will be dropped to, if the workspace in fact 2781 // receives the drop 2782 mDropToLayout = mDragTargetLayout; 2783 if (mDragMode == DRAG_MODE_CREATE_FOLDER) { 2784 mCreateUserFolderOnDrop = true; 2785 } else if (mDragMode == DRAG_MODE_ADD_TO_FOLDER) { 2786 mAddToExistingFolderOnDrop = true; 2787 } 2788 2789 // Reset the previous drag target 2790 setCurrentDropLayout(null); 2791 setCurrentDragOverlappingLayout(null); 2792 2793 mSpringLoadedDragController.cancel(); 2794 } 2795 2796 private void enforceDragParity(String event, int update, int expectedValue) { 2797 enforceDragParity(this, event, update, expectedValue); 2798 for (int i = 0; i < getChildCount(); i++) { 2799 enforceDragParity(getChildAt(i), event, update, expectedValue); 2800 } 2801 } 2802 2803 private void enforceDragParity(View v, String event, int update, int expectedValue) { 2804 Object tag = v.getTag(R.id.drag_event_parity); 2805 int value = tag == null ? 0 : (Integer) tag; 2806 value += update; 2807 v.setTag(R.id.drag_event_parity, value); 2808 2809 if (value != expectedValue) { 2810 Log.e(TAG, event + ": Drag contract violated: " + value); 2811 } 2812 } 2813 2814 void setCurrentDropLayout(CellLayout layout) { 2815 if (mDragTargetLayout != null) { 2816 mDragTargetLayout.revertTempState(); 2817 mDragTargetLayout.onDragExit(); 2818 } 2819 mDragTargetLayout = layout; 2820 if (mDragTargetLayout != null) { 2821 mDragTargetLayout.onDragEnter(); 2822 } 2823 cleanupReorder(true); 2824 cleanupFolderCreation(); 2825 setCurrentDropOverCell(-1, -1); 2826 } 2827 2828 void setCurrentDragOverlappingLayout(CellLayout layout) { 2829 if (mDragOverlappingLayout != null) { 2830 mDragOverlappingLayout.setIsDragOverlapping(false); 2831 } 2832 mDragOverlappingLayout = layout; 2833 if (mDragOverlappingLayout != null) { 2834 mDragOverlappingLayout.setIsDragOverlapping(true); 2835 } 2836 // Invalidating the scrim will also force this CellLayout 2837 // to be invalidated so that it is highlighted if necessary. 2838 mLauncher.getDragLayer().invalidateScrim(); 2839 } 2840 2841 public CellLayout getCurrentDragOverlappingLayout() { 2842 return mDragOverlappingLayout; 2843 } 2844 2845 void setCurrentDropOverCell(int x, int y) { 2846 if (x != mDragOverX || y != mDragOverY) { 2847 mDragOverX = x; 2848 mDragOverY = y; 2849 setDragMode(DRAG_MODE_NONE); 2850 } 2851 } 2852 2853 void setDragMode(int dragMode) { 2854 if (dragMode != mDragMode) { 2855 if (dragMode == DRAG_MODE_NONE) { 2856 cleanupAddToFolder(); 2857 // We don't want to cancel the re-order alarm every time the target cell changes 2858 // as this feels to slow / unresponsive. 2859 cleanupReorder(false); 2860 cleanupFolderCreation(); 2861 } else if (dragMode == DRAG_MODE_ADD_TO_FOLDER) { 2862 cleanupReorder(true); 2863 cleanupFolderCreation(); 2864 } else if (dragMode == DRAG_MODE_CREATE_FOLDER) { 2865 cleanupAddToFolder(); 2866 cleanupReorder(true); 2867 } else if (dragMode == DRAG_MODE_REORDER) { 2868 cleanupAddToFolder(); 2869 cleanupFolderCreation(); 2870 } 2871 mDragMode = dragMode; 2872 } 2873 } 2874 2875 private void cleanupFolderCreation() { 2876 if (mFolderCreateBg != null) { 2877 mFolderCreateBg.animateToRest(); 2878 } 2879 mFolderCreationAlarm.setOnAlarmListener(null); 2880 mFolderCreationAlarm.cancelAlarm(); 2881 } 2882 2883 private void cleanupAddToFolder() { 2884 if (mDragOverFolderIcon != null) { 2885 mDragOverFolderIcon.onDragExit(); 2886 mDragOverFolderIcon = null; 2887 } 2888 } 2889 2890 private void cleanupReorder(boolean cancelAlarm) { 2891 // Any pending reorders are canceled 2892 if (cancelAlarm) { 2893 mReorderAlarm.cancelAlarm(); 2894 } 2895 mLastReorderX = -1; 2896 mLastReorderY = -1; 2897 } 2898 2899 /* 2900 * 2901 * Convert the 2D coordinate xy from the parent View's coordinate space to this CellLayout's 2902 * coordinate space. The argument xy is modified with the return result. 2903 */ 2904 void mapPointFromSelfToChild(View v, float[] xy) { 2905 xy[0] = xy[0] - v.getLeft(); 2906 xy[1] = xy[1] - v.getTop(); 2907 } 2908 2909 boolean isPointInSelfOverHotseat(int x, int y) { 2910 mTempXY[0] = x; 2911 mTempXY[1] = y; 2912 mLauncher.getDragLayer().getDescendantCoordRelativeToSelf(this, mTempXY, true); 2913 View hotseat = mLauncher.getHotseat(); 2914 return mTempXY[0] >= hotseat.getLeft() && 2915 mTempXY[0] <= hotseat.getRight() && 2916 mTempXY[1] >= hotseat.getTop() && 2917 mTempXY[1] <= hotseat.getBottom(); 2918 } 2919 2920 void mapPointFromSelfToHotseatLayout(Hotseat hotseat, float[] xy) { 2921 mTempXY[0] = (int) xy[0]; 2922 mTempXY[1] = (int) xy[1]; 2923 mLauncher.getDragLayer().getDescendantCoordRelativeToSelf(this, mTempXY, true); 2924 mLauncher.getDragLayer().mapCoordInSelfToDescendant(hotseat.getLayout(), mTempXY); 2925 2926 xy[0] = mTempXY[0]; 2927 xy[1] = mTempXY[1]; 2928 } 2929 2930 /* 2931 * 2932 * Convert the 2D coordinate xy from this CellLayout's coordinate space to 2933 * the parent View's coordinate space. The argument xy is modified with the return result. 2934 * 2935 */ 2936 void mapPointFromChildToSelf(View v, float[] xy) { 2937 xy[0] += v.getLeft(); 2938 xy[1] += v.getTop(); 2939 } 2940 2941 private boolean isDragWidget(DragObject d) { 2942 return (d.dragInfo instanceof LauncherAppWidgetInfo || 2943 d.dragInfo instanceof PendingAddWidgetInfo); 2944 } 2945 2946 public void onDragOver(DragObject d) { 2947 // Skip drag over events while we are dragging over side pages 2948 if (!transitionStateShouldAllowDrop()) return; 2949 2950 ItemInfo item = d.dragInfo; 2951 if (item == null) { 2952 if (ProviderConfig.IS_DOGFOOD_BUILD) { 2953 throw new NullPointerException("DragObject has null info"); 2954 } 2955 return; 2956 } 2957 2958 // Ensure that we have proper spans for the item that we are dropping 2959 if (item.spanX < 0 || item.spanY < 0) throw new RuntimeException("Improper spans found"); 2960 mDragViewVisualCenter = d.getVisualCenter(mDragViewVisualCenter); 2961 2962 final View child = (mDragInfo == null) ? null : mDragInfo.cell; 2963 if (setDropLayoutForDragObject(d, mDragViewVisualCenter[0], mDragViewVisualCenter[1])) { 2964 if (mLauncher.isHotseatLayout(mDragTargetLayout)) { 2965 mSpringLoadedDragController.cancel(); 2966 } else { 2967 mSpringLoadedDragController.setAlarm(mDragTargetLayout); 2968 } 2969 } 2970 2971 // Handle the drag over 2972 if (mDragTargetLayout != null) { 2973 // We want the point to be mapped to the dragTarget. 2974 if (mLauncher.isHotseatLayout(mDragTargetLayout)) { 2975 mapPointFromSelfToHotseatLayout(mLauncher.getHotseat(), mDragViewVisualCenter); 2976 } else { 2977 mapPointFromSelfToChild(mDragTargetLayout, mDragViewVisualCenter); 2978 } 2979 2980 int minSpanX = item.spanX; 2981 int minSpanY = item.spanY; 2982 if (item.minSpanX > 0 && item.minSpanY > 0) { 2983 minSpanX = item.minSpanX; 2984 minSpanY = item.minSpanY; 2985 } 2986 2987 mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], 2988 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, 2989 mDragTargetLayout, mTargetCell); 2990 int reorderX = mTargetCell[0]; 2991 int reorderY = mTargetCell[1]; 2992 2993 setCurrentDropOverCell(mTargetCell[0], mTargetCell[1]); 2994 2995 float targetCellDistance = mDragTargetLayout.getDistanceFromCell( 2996 mDragViewVisualCenter[0], mDragViewVisualCenter[1], mTargetCell); 2997 2998 manageFolderFeedback(mDragTargetLayout, mTargetCell, targetCellDistance, d); 2999 3000 boolean nearestDropOccupied = mDragTargetLayout.isNearestDropLocationOccupied((int) 3001 mDragViewVisualCenter[0], (int) mDragViewVisualCenter[1], item.spanX, 3002 item.spanY, child, mTargetCell); 3003 3004 if (!nearestDropOccupied) { 3005 mDragTargetLayout.visualizeDropLocation(child, mOutlineProvider, 3006 mTargetCell[0], mTargetCell[1], item.spanX, item.spanY, false, d); 3007 } else if ((mDragMode == DRAG_MODE_NONE || mDragMode == DRAG_MODE_REORDER) 3008 && !mReorderAlarm.alarmPending() && (mLastReorderX != reorderX || 3009 mLastReorderY != reorderY)) { 3010 3011 int[] resultSpan = new int[2]; 3012 mDragTargetLayout.performReorder((int) mDragViewVisualCenter[0], 3013 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, item.spanX, item.spanY, 3014 child, mTargetCell, resultSpan, CellLayout.MODE_SHOW_REORDER_HINT); 3015 3016 // Otherwise, if we aren't adding to or creating a folder and there's no pending 3017 // reorder, then we schedule a reorder 3018 ReorderAlarmListener listener = new ReorderAlarmListener(mDragViewVisualCenter, 3019 minSpanX, minSpanY, item.spanX, item.spanY, d, child); 3020 mReorderAlarm.setOnAlarmListener(listener); 3021 mReorderAlarm.setAlarm(REORDER_TIMEOUT); 3022 } 3023 3024 if (mDragMode == DRAG_MODE_CREATE_FOLDER || mDragMode == DRAG_MODE_ADD_TO_FOLDER || 3025 !nearestDropOccupied) { 3026 if (mDragTargetLayout != null) { 3027 mDragTargetLayout.revertTempState(); 3028 } 3029 } 3030 } 3031 } 3032 3033 /** 3034 * Updates {@link #mDragTargetLayout} and {@link #mDragOverlappingLayout} 3035 * based on the DragObject's position. 3036 * 3037 * The layout will be: 3038 * - The Hotseat if the drag object is over it 3039 * - A side page if we are in spring-loaded mode and the drag object is over it 3040 * - The current page otherwise 3041 * 3042 * @return whether the layout is different from the current {@link #mDragTargetLayout}. 3043 */ 3044 private boolean setDropLayoutForDragObject(DragObject d, float centerX, float centerY) { 3045 CellLayout layout = null; 3046 // Test to see if we are over the hotseat first 3047 if (mLauncher.getHotseat() != null && !isDragWidget(d)) { 3048 if (isPointInSelfOverHotseat(d.x, d.y)) { 3049 layout = mLauncher.getHotseat().getLayout(); 3050 } 3051 } 3052 3053 int nextPage = getNextPage(); 3054 if (layout == null && !isPageInTransition()) { 3055 // Check if the item is dragged over left page 3056 mTempTouchCoordinates[0] = Math.min(centerX, d.x); 3057 mTempTouchCoordinates[1] = d.y; 3058 layout = verifyInsidePage(nextPage + (mIsRtl ? 1 : -1), mTempTouchCoordinates); 3059 } 3060 3061 if (layout == null && !isPageInTransition()) { 3062 // Check if the item is dragged over right page 3063 mTempTouchCoordinates[0] = Math.max(centerX, d.x); 3064 mTempTouchCoordinates[1] = d.y; 3065 layout = verifyInsidePage(nextPage + (mIsRtl ? -1 : 1), mTempTouchCoordinates); 3066 } 3067 3068 // Always pick the current page. 3069 if (layout == null && nextPage >= numCustomPages() && nextPage < getPageCount()) { 3070 layout = (CellLayout) getChildAt(nextPage); 3071 } 3072 if (layout != mDragTargetLayout) { 3073 setCurrentDropLayout(layout); 3074 setCurrentDragOverlappingLayout(layout); 3075 return true; 3076 } 3077 return false; 3078 } 3079 3080 /** 3081 * Returns the child CellLayout if the point is inside the page coordinates, null otherwise. 3082 */ 3083 private CellLayout verifyInsidePage(int pageNo, float[] touchXy) { 3084 if (pageNo >= numCustomPages() && pageNo < getPageCount()) { 3085 CellLayout cl = (CellLayout) getChildAt(pageNo); 3086 mapPointFromSelfToChild(cl, touchXy); 3087 if (touchXy[0] >= 0 && touchXy[0] <= cl.getWidth() && 3088 touchXy[1] >= 0 && touchXy[1] <= cl.getHeight()) { 3089 // This point is inside the cell layout 3090 return cl; 3091 } 3092 } 3093 return null; 3094 } 3095 3096 private void manageFolderFeedback(CellLayout targetLayout, 3097 int[] targetCell, float distance, DragObject dragObject) { 3098 if (distance > mMaxDistanceForFolderCreation) return; 3099 3100 final View dragOverView = mDragTargetLayout.getChildAt(mTargetCell[0], mTargetCell[1]); 3101 ItemInfo info = dragObject.dragInfo; 3102 boolean userFolderPending = willCreateUserFolder(info, dragOverView, false); 3103 if (mDragMode == DRAG_MODE_NONE && userFolderPending && 3104 !mFolderCreationAlarm.alarmPending()) { 3105 3106 FolderCreationAlarmListener listener = new 3107 FolderCreationAlarmListener(targetLayout, targetCell[0], targetCell[1]); 3108 3109 if (!dragObject.accessibleDrag) { 3110 mFolderCreationAlarm.setOnAlarmListener(listener); 3111 mFolderCreationAlarm.setAlarm(FOLDER_CREATION_TIMEOUT); 3112 } else { 3113 listener.onAlarm(mFolderCreationAlarm); 3114 } 3115 3116 if (dragObject.stateAnnouncer != null) { 3117 dragObject.stateAnnouncer.announce(WorkspaceAccessibilityHelper 3118 .getDescriptionForDropOver(dragOverView, getContext())); 3119 } 3120 return; 3121 } 3122 3123 boolean willAddToFolder = willAddToExistingUserFolder(info, dragOverView); 3124 if (willAddToFolder && mDragMode == DRAG_MODE_NONE) { 3125 mDragOverFolderIcon = ((FolderIcon) dragOverView); 3126 mDragOverFolderIcon.onDragEnter(info); 3127 if (targetLayout != null) { 3128 targetLayout.clearDragOutlines(); 3129 } 3130 setDragMode(DRAG_MODE_ADD_TO_FOLDER); 3131 3132 if (dragObject.stateAnnouncer != null) { 3133 dragObject.stateAnnouncer.announce(WorkspaceAccessibilityHelper 3134 .getDescriptionForDropOver(dragOverView, getContext())); 3135 } 3136 return; 3137 } 3138 3139 if (mDragMode == DRAG_MODE_ADD_TO_FOLDER && !willAddToFolder) { 3140 setDragMode(DRAG_MODE_NONE); 3141 } 3142 if (mDragMode == DRAG_MODE_CREATE_FOLDER && !userFolderPending) { 3143 setDragMode(DRAG_MODE_NONE); 3144 } 3145 } 3146 3147 class FolderCreationAlarmListener implements OnAlarmListener { 3148 CellLayout layout; 3149 int cellX; 3150 int cellY; 3151 3152 FolderIcon.PreviewBackground bg = new FolderIcon.PreviewBackground(); 3153 3154 public FolderCreationAlarmListener(CellLayout layout, int cellX, int cellY) { 3155 this.layout = layout; 3156 this.cellX = cellX; 3157 this.cellY = cellY; 3158 3159 DeviceProfile grid = mLauncher.getDeviceProfile(); 3160 BubbleTextView cell = (BubbleTextView) layout.getChildAt(cellX, cellY); 3161 3162 bg.setup(getResources().getDisplayMetrics(), grid, null, 3163 cell.getMeasuredWidth(), cell.getPaddingTop()); 3164 3165 // The full preview background should appear behind the icon 3166 bg.isClipping = false; 3167 } 3168 3169 public void onAlarm(Alarm alarm) { 3170 mFolderCreateBg = bg; 3171 mFolderCreateBg.animateToAccept(layout, cellX, cellY); 3172 layout.clearDragOutlines(); 3173 setDragMode(DRAG_MODE_CREATE_FOLDER); 3174 } 3175 } 3176 3177 class ReorderAlarmListener implements OnAlarmListener { 3178 float[] dragViewCenter; 3179 int minSpanX, minSpanY, spanX, spanY; 3180 DragObject dragObject; 3181 View child; 3182 3183 public ReorderAlarmListener(float[] dragViewCenter, int minSpanX, int minSpanY, int spanX, 3184 int spanY, DragObject dragObject, View child) { 3185 this.dragViewCenter = dragViewCenter; 3186 this.minSpanX = minSpanX; 3187 this.minSpanY = minSpanY; 3188 this.spanX = spanX; 3189 this.spanY = spanY; 3190 this.child = child; 3191 this.dragObject = dragObject; 3192 } 3193 3194 public void onAlarm(Alarm alarm) { 3195 int[] resultSpan = new int[2]; 3196 mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], 3197 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, mDragTargetLayout, 3198 mTargetCell); 3199 mLastReorderX = mTargetCell[0]; 3200 mLastReorderY = mTargetCell[1]; 3201 3202 mTargetCell = mDragTargetLayout.performReorder((int) mDragViewVisualCenter[0], 3203 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, spanX, spanY, 3204 child, mTargetCell, resultSpan, CellLayout.MODE_DRAG_OVER); 3205 3206 if (mTargetCell[0] < 0 || mTargetCell[1] < 0) { 3207 mDragTargetLayout.revertTempState(); 3208 } else { 3209 setDragMode(DRAG_MODE_REORDER); 3210 } 3211 3212 boolean resize = resultSpan[0] != spanX || resultSpan[1] != spanY; 3213 mDragTargetLayout.visualizeDropLocation(child, mOutlineProvider, 3214 mTargetCell[0], mTargetCell[1], resultSpan[0], resultSpan[1], resize, dragObject); 3215 } 3216 } 3217 3218 @Override 3219 public void getHitRectRelativeToDragLayer(Rect outRect) { 3220 // We want the workspace to have the whole area of the display (it will find the correct 3221 // cell layout to drop to in the existing drag/drop logic. 3222 mLauncher.getDragLayer().getDescendantRectRelativeToSelf(this, outRect); 3223 } 3224 3225 /** 3226 * Drop an item that didn't originate on one of the workspace screens. 3227 * It may have come from Launcher (e.g. from all apps or customize), or it may have 3228 * come from another app altogether. 3229 * 3230 * NOTE: This can also be called when we are outside of a drag event, when we want 3231 * to add an item to one of the workspace screens. 3232 */ 3233 private void onDropExternal(final int[] touchXY, final CellLayout cellLayout, DragObject d) { 3234 final Runnable exitSpringLoadedRunnable = new Runnable() { 3235 @Override 3236 public void run() { 3237 mLauncher.exitSpringLoadedDragModeDelayed(true, 3238 Launcher.EXIT_SPRINGLOADED_MODE_SHORT_TIMEOUT, null); 3239 } 3240 }; 3241 3242 if (d.dragInfo instanceof PendingAddShortcutInfo) { 3243 ShortcutInfo si = ((PendingAddShortcutInfo) d.dragInfo) 3244 .activityInfo.createShortcutInfo(); 3245 if (si != null) { 3246 d.dragInfo = si; 3247 } 3248 } 3249 3250 ItemInfo info = d.dragInfo; 3251 int spanX = info.spanX; 3252 int spanY = info.spanY; 3253 if (mDragInfo != null) { 3254 spanX = mDragInfo.spanX; 3255 spanY = mDragInfo.spanY; 3256 } 3257 3258 final long container = mLauncher.isHotseatLayout(cellLayout) ? 3259 LauncherSettings.Favorites.CONTAINER_HOTSEAT : 3260 LauncherSettings.Favorites.CONTAINER_DESKTOP; 3261 final long screenId = getIdForScreen(cellLayout); 3262 if (!mLauncher.isHotseatLayout(cellLayout) 3263 && screenId != getScreenIdForPageIndex(mCurrentPage) 3264 && mState != State.SPRING_LOADED) { 3265 snapToScreenId(screenId, null); 3266 } 3267 3268 if (info instanceof PendingAddItemInfo) { 3269 final PendingAddItemInfo pendingInfo = (PendingAddItemInfo) info; 3270 3271 boolean findNearestVacantCell = true; 3272 if (pendingInfo.itemType == LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT) { 3273 mTargetCell = findNearestArea((int) touchXY[0], (int) touchXY[1], spanX, spanY, 3274 cellLayout, mTargetCell); 3275 float distance = cellLayout.getDistanceFromCell(mDragViewVisualCenter[0], 3276 mDragViewVisualCenter[1], mTargetCell); 3277 if (willCreateUserFolder(d.dragInfo, cellLayout, mTargetCell, distance, true) 3278 || willAddToExistingUserFolder( 3279 d.dragInfo, cellLayout, mTargetCell, distance)) { 3280 findNearestVacantCell = false; 3281 } 3282 } 3283 3284 final ItemInfo item = d.dragInfo; 3285 boolean updateWidgetSize = false; 3286 if (findNearestVacantCell) { 3287 int minSpanX = item.spanX; 3288 int minSpanY = item.spanY; 3289 if (item.minSpanX > 0 && item.minSpanY > 0) { 3290 minSpanX = item.minSpanX; 3291 minSpanY = item.minSpanY; 3292 } 3293 int[] resultSpan = new int[2]; 3294 mTargetCell = cellLayout.performReorder((int) mDragViewVisualCenter[0], 3295 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, info.spanX, info.spanY, 3296 null, mTargetCell, resultSpan, CellLayout.MODE_ON_DROP_EXTERNAL); 3297 3298 if (resultSpan[0] != item.spanX || resultSpan[1] != item.spanY) { 3299 updateWidgetSize = true; 3300 } 3301 item.spanX = resultSpan[0]; 3302 item.spanY = resultSpan[1]; 3303 } 3304 3305 Runnable onAnimationCompleteRunnable = new Runnable() { 3306 @Override 3307 public void run() { 3308 // Normally removeExtraEmptyScreen is called in Workspace#onDragEnd, but when 3309 // adding an item that may not be dropped right away (due to a config activity) 3310 // we defer the removal until the activity returns. 3311 deferRemoveExtraEmptyScreen(); 3312 3313 // When dragging and dropping from customization tray, we deal with creating 3314 // widgets/shortcuts/folders in a slightly different way 3315 mLauncher.addPendingItem(pendingInfo, container, screenId, mTargetCell, 3316 item.spanX, item.spanY); 3317 } 3318 }; 3319 boolean isWidget = pendingInfo.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET 3320 || pendingInfo.itemType == LauncherSettings.Favorites.ITEM_TYPE_CUSTOM_APPWIDGET; 3321 3322 AppWidgetHostView finalView = isWidget ? 3323 ((PendingAddWidgetInfo) pendingInfo).boundWidget : null; 3324 3325 if (finalView != null && updateWidgetSize) { 3326 AppWidgetResizeFrame.updateWidgetSizeRanges(finalView, mLauncher, item.spanX, 3327 item.spanY); 3328 } 3329 3330 int animationStyle = ANIMATE_INTO_POSITION_AND_DISAPPEAR; 3331 if (isWidget && ((PendingAddWidgetInfo) pendingInfo).info != null && 3332 ((PendingAddWidgetInfo) pendingInfo).getHandler().needsConfigure()) { 3333 animationStyle = ANIMATE_INTO_POSITION_AND_REMAIN; 3334 } 3335 animateWidgetDrop(info, cellLayout, d.dragView, onAnimationCompleteRunnable, 3336 animationStyle, finalView, true); 3337 } else { 3338 // This is for other drag/drop cases, like dragging from All Apps 3339 View view = null; 3340 3341 switch (info.itemType) { 3342 case LauncherSettings.Favorites.ITEM_TYPE_APPLICATION: 3343 case LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT: 3344 case LauncherSettings.Favorites.ITEM_TYPE_DEEP_SHORTCUT: 3345 if (info.container == NO_ID && info instanceof AppInfo) { 3346 // Came from all apps -- make a copy 3347 info = ((AppInfo) info).makeShortcut(); 3348 d.dragInfo = info; 3349 } 3350 view = mLauncher.createShortcut(cellLayout, (ShortcutInfo) info); 3351 break; 3352 case LauncherSettings.Favorites.ITEM_TYPE_FOLDER: 3353 view = FolderIcon.fromXml(R.layout.folder_icon, mLauncher, cellLayout, 3354 (FolderInfo) info); 3355 break; 3356 default: 3357 throw new IllegalStateException("Unknown item type: " + info.itemType); 3358 } 3359 3360 // First we find the cell nearest to point at which the item is 3361 // dropped, without any consideration to whether there is an item there. 3362 if (touchXY != null) { 3363 mTargetCell = findNearestArea((int) touchXY[0], (int) touchXY[1], spanX, spanY, 3364 cellLayout, mTargetCell); 3365 float distance = cellLayout.getDistanceFromCell(mDragViewVisualCenter[0], 3366 mDragViewVisualCenter[1], mTargetCell); 3367 d.postAnimationRunnable = exitSpringLoadedRunnable; 3368 if (createUserFolderIfNecessary(view, container, cellLayout, mTargetCell, distance, 3369 true, d.dragView, d.postAnimationRunnable)) { 3370 return; 3371 } 3372 if (addToExistingFolderIfNecessary(view, cellLayout, mTargetCell, distance, d, 3373 true)) { 3374 return; 3375 } 3376 } 3377 3378 if (touchXY != null) { 3379 // when dragging and dropping, just find the closest free spot 3380 mTargetCell = cellLayout.performReorder((int) mDragViewVisualCenter[0], 3381 (int) mDragViewVisualCenter[1], 1, 1, 1, 1, 3382 null, mTargetCell, null, CellLayout.MODE_ON_DROP_EXTERNAL); 3383 } else { 3384 cellLayout.findCellForSpan(mTargetCell, 1, 1); 3385 } 3386 // Add the item to DB before adding to screen ensures that the container and other 3387 // values of the info is properly updated. 3388 LauncherModel.addOrMoveItemInDatabase(mLauncher, info, container, screenId, 3389 mTargetCell[0], mTargetCell[1]); 3390 3391 addInScreen(view, container, screenId, mTargetCell[0], mTargetCell[1], 3392 info.spanX, info.spanY); 3393 cellLayout.onDropChild(view); 3394 cellLayout.getShortcutsAndWidgets().measureChild(view); 3395 3396 if (d.dragView != null) { 3397 // We wrap the animation call in the temporary set and reset of the current 3398 // cellLayout to its final transform -- this means we animate the drag view to 3399 // the correct final location. 3400 setFinalTransitionTransform(cellLayout); 3401 mLauncher.getDragLayer().animateViewIntoPosition(d.dragView, view, 3402 exitSpringLoadedRunnable, this); 3403 resetTransitionTransform(cellLayout); 3404 } 3405 } 3406 } 3407 3408 public Bitmap createWidgetBitmap(ItemInfo widgetInfo, View layout) { 3409 int[] unScaledSize = mLauncher.getWorkspace().estimateItemSize(widgetInfo, false, true); 3410 int visibility = layout.getVisibility(); 3411 layout.setVisibility(VISIBLE); 3412 3413 int width = MeasureSpec.makeMeasureSpec(unScaledSize[0], MeasureSpec.EXACTLY); 3414 int height = MeasureSpec.makeMeasureSpec(unScaledSize[1], MeasureSpec.EXACTLY); 3415 Bitmap b = Bitmap.createBitmap(unScaledSize[0], unScaledSize[1], 3416 Bitmap.Config.ARGB_8888); 3417 mCanvas.setBitmap(b); 3418 3419 layout.measure(width, height); 3420 layout.layout(0, 0, unScaledSize[0], unScaledSize[1]); 3421 layout.draw(mCanvas); 3422 mCanvas.setBitmap(null); 3423 layout.setVisibility(visibility); 3424 return b; 3425 } 3426 3427 private void getFinalPositionForDropAnimation(int[] loc, float[] scaleXY, 3428 DragView dragView, CellLayout layout, ItemInfo info, int[] targetCell, boolean scale) { 3429 // Now we animate the dragView, (ie. the widget or shortcut preview) into its final 3430 // location and size on the home screen. 3431 int spanX = info.spanX; 3432 int spanY = info.spanY; 3433 3434 Rect r = estimateItemPosition(layout, targetCell[0], targetCell[1], spanX, spanY); 3435 if (info.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET) { 3436 DeviceProfile profile = mLauncher.getDeviceProfile(); 3437 Utilities.shrinkRect(r, profile.appWidgetScale.x, profile.appWidgetScale.y); 3438 } 3439 loc[0] = r.left; 3440 loc[1] = r.top; 3441 3442 setFinalTransitionTransform(layout); 3443 float cellLayoutScale = 3444 mLauncher.getDragLayer().getDescendantCoordRelativeToSelf(layout, loc, true); 3445 resetTransitionTransform(layout); 3446 3447 if (scale) { 3448 float dragViewScaleX = (1.0f * r.width()) / dragView.getMeasuredWidth(); 3449 float dragViewScaleY = (1.0f * r.height()) / dragView.getMeasuredHeight(); 3450 3451 // The animation will scale the dragView about its center, so we need to center about 3452 // the final location. 3453 loc[0] -= (dragView.getMeasuredWidth() - cellLayoutScale * r.width()) / 2 3454 - Math.ceil(layout.getUnusedHorizontalSpace() / 2f); 3455 loc[1] -= (dragView.getMeasuredHeight() - cellLayoutScale * r.height()) / 2; 3456 scaleXY[0] = dragViewScaleX * cellLayoutScale; 3457 scaleXY[1] = dragViewScaleY * cellLayoutScale; 3458 } else { 3459 // Since we are not cross-fading the dragView, align the drag view to the 3460 // final cell position. 3461 float dragScale = dragView.getInitialScale() * cellLayoutScale; 3462 loc[0] += (dragScale - 1) * dragView.getWidth() / 2; 3463 loc[1] += (dragScale - 1) * dragView.getHeight() / 2; 3464 scaleXY[0] = scaleXY[1] = dragScale; 3465 3466 // If a dragRegion was provided, offset the final position accordingly. 3467 Rect dragRegion = dragView.getDragRegion(); 3468 if (dragRegion != null) { 3469 loc[0] += cellLayoutScale * dragRegion.left; 3470 loc[1] += cellLayoutScale * dragRegion.top; 3471 } 3472 } 3473 } 3474 3475 public void animateWidgetDrop(ItemInfo info, CellLayout cellLayout, final DragView dragView, 3476 final Runnable onCompleteRunnable, int animationType, final View finalView, 3477 boolean external) { 3478 Rect from = new Rect(); 3479 mLauncher.getDragLayer().getViewRectRelativeToSelf(dragView, from); 3480 3481 int[] finalPos = new int[2]; 3482 float scaleXY[] = new float[2]; 3483 boolean scalePreview = !(info instanceof PendingAddShortcutInfo); 3484 getFinalPositionForDropAnimation(finalPos, scaleXY, dragView, cellLayout, info, mTargetCell, 3485 scalePreview); 3486 3487 Resources res = mLauncher.getResources(); 3488 final int duration = res.getInteger(R.integer.config_dropAnimMaxDuration) - 200; 3489 3490 boolean isWidget = info.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET || 3491 info.itemType == LauncherSettings.Favorites.ITEM_TYPE_CUSTOM_APPWIDGET; 3492 if ((animationType == ANIMATE_INTO_POSITION_AND_RESIZE || external) && finalView != null) { 3493 Bitmap crossFadeBitmap = createWidgetBitmap(info, finalView); 3494 dragView.setCrossFadeBitmap(crossFadeBitmap); 3495 dragView.crossFade((int) (duration * 0.8f)); 3496 } else if (isWidget && external) { 3497 scaleXY[0] = scaleXY[1] = Math.min(scaleXY[0], scaleXY[1]); 3498 } 3499 3500 DragLayer dragLayer = mLauncher.getDragLayer(); 3501 if (animationType == CANCEL_TWO_STAGE_WIDGET_DROP_ANIMATION) { 3502 mLauncher.getDragLayer().animateViewIntoPosition(dragView, finalPos, 0f, 0.1f, 0.1f, 3503 DragLayer.ANIMATION_END_DISAPPEAR, onCompleteRunnable, duration); 3504 } else { 3505 int endStyle; 3506 if (animationType == ANIMATE_INTO_POSITION_AND_REMAIN) { 3507 endStyle = DragLayer.ANIMATION_END_REMAIN_VISIBLE; 3508 } else { 3509 endStyle = DragLayer.ANIMATION_END_DISAPPEAR; 3510 } 3511 3512 Runnable onComplete = new Runnable() { 3513 @Override 3514 public void run() { 3515 if (finalView != null) { 3516 finalView.setVisibility(VISIBLE); 3517 } 3518 if (onCompleteRunnable != null) { 3519 onCompleteRunnable.run(); 3520 } 3521 } 3522 }; 3523 dragLayer.animateViewIntoPosition(dragView, from.left, from.top, finalPos[0], 3524 finalPos[1], 1, 1, 1, scaleXY[0], scaleXY[1], onComplete, endStyle, 3525 duration, this); 3526 } 3527 } 3528 3529 public void setFinalTransitionTransform(CellLayout layout) { 3530 if (isSwitchingState()) { 3531 mCurrentScale = getScaleX(); 3532 setScaleX(mStateTransitionAnimation.getFinalScale()); 3533 setScaleY(mStateTransitionAnimation.getFinalScale()); 3534 } 3535 } 3536 public void resetTransitionTransform(CellLayout layout) { 3537 if (isSwitchingState()) { 3538 setScaleX(mCurrentScale); 3539 setScaleY(mCurrentScale); 3540 } 3541 } 3542 3543 public WorkspaceStateTransitionAnimation getStateTransitionAnimation() { 3544 return mStateTransitionAnimation; 3545 } 3546 3547 /** 3548 * Return the current CellInfo describing our current drag; this method exists 3549 * so that Launcher can sync this object with the correct info when the activity is created/ 3550 * destroyed 3551 * 3552 */ 3553 public CellLayout.CellInfo getDragInfo() { 3554 return mDragInfo; 3555 } 3556 3557 public int getCurrentPageOffsetFromCustomContent() { 3558 return getNextPage() - numCustomPages(); 3559 } 3560 3561 /** 3562 * Calculate the nearest cell where the given object would be dropped. 3563 * 3564 * pixelX and pixelY should be in the coordinate system of layout 3565 */ 3566 @Thunk int[] findNearestArea(int pixelX, int pixelY, 3567 int spanX, int spanY, CellLayout layout, int[] recycle) { 3568 return layout.findNearestArea( 3569 pixelX, pixelY, spanX, spanY, recycle); 3570 } 3571 3572 void setup(DragController dragController) { 3573 mSpringLoadedDragController = new SpringLoadedDragController(mLauncher); 3574 mDragController = dragController; 3575 3576 // hardware layers on children are enabled on startup, but should be disabled until 3577 // needed 3578 updateChildrenLayersEnabled(false); 3579 } 3580 3581 /** 3582 * Called at the end of a drag which originated on the workspace. 3583 */ 3584 public void onDropCompleted(final View target, final DragObject d, 3585 final boolean isFlingToDelete, final boolean success) { 3586 if (mDeferDropAfterUninstall) { 3587 final CellLayout.CellInfo dragInfo = mDragInfo; 3588 mDeferredAction = new Runnable() { 3589 public void run() { 3590 mDragInfo = dragInfo; // Restore the drag info that was cleared in onDragEnd() 3591 onDropCompleted(target, d, isFlingToDelete, success); 3592 mDeferredAction = null; 3593 } 3594 }; 3595 return; 3596 } 3597 3598 boolean beingCalledAfterUninstall = mDeferredAction != null; 3599 3600 if (success && !(beingCalledAfterUninstall && !mUninstallSuccessful)) { 3601 if (target != this && mDragInfo != null) { 3602 removeWorkspaceItem(mDragInfo.cell); 3603 } 3604 } else if (mDragInfo != null) { 3605 final CellLayout cellLayout = mLauncher.getCellLayout( 3606 mDragInfo.container, mDragInfo.screenId); 3607 if (cellLayout != null) { 3608 cellLayout.onDropChild(mDragInfo.cell); 3609 } else if (ProviderConfig.IS_DOGFOOD_BUILD) { 3610 throw new RuntimeException("Invalid state: cellLayout == null in " 3611 + "Workspace#onDropCompleted. Please file a bug. "); 3612 }; 3613 } 3614 if ((d.cancelled || (beingCalledAfterUninstall && !mUninstallSuccessful)) 3615 && mDragInfo.cell != null) { 3616 mDragInfo.cell.setVisibility(VISIBLE); 3617 } 3618 mDragInfo = null; 3619 3620 if (!isFlingToDelete) { 3621 // Fling to delete already exits spring loaded mode after the animation finishes. 3622 mLauncher.exitSpringLoadedDragModeDelayed(success, 3623 Launcher.EXIT_SPRINGLOADED_MODE_SHORT_TIMEOUT, mDelayedResizeRunnable); 3624 mDelayedResizeRunnable = null; 3625 } 3626 } 3627 3628 /** 3629 * For opposite operation. See {@link #addInScreen}. 3630 */ 3631 public void removeWorkspaceItem(View v) { 3632 CellLayout parentCell = getParentCellLayoutForView(v); 3633 if (parentCell != null) { 3634 parentCell.removeView(v); 3635 } else if (ProviderConfig.IS_DOGFOOD_BUILD) { 3636 // When an app is uninstalled using the drop target, we wait until resume to remove 3637 // the icon. We also remove all the corresponding items from the workspace at 3638 // {@link Launcher#bindComponentsRemoved}. That call can come before or after 3639 // {@link Launcher#mOnResumeCallbacks} depending on how busy the worker thread is. 3640 Log.e(TAG, "mDragInfo.cell has null parent"); 3641 } 3642 if (v instanceof DropTarget) { 3643 mDragController.removeDropTarget((DropTarget) v); 3644 } 3645 } 3646 3647 /** 3648 * Removes all folder listeners 3649 */ 3650 public void removeFolderListeners() { 3651 mapOverItems(false, new ItemOperator() { 3652 @Override 3653 public boolean evaluate(ItemInfo info, View view) { 3654 if (view instanceof FolderIcon) { 3655 ((FolderIcon) view).removeListeners(); 3656 } 3657 return false; 3658 } 3659 }); 3660 } 3661 3662 @Override 3663 public void deferCompleteDropAfterUninstallActivity() { 3664 mDeferDropAfterUninstall = true; 3665 } 3666 3667 /// maybe move this into a smaller part 3668 @Override 3669 public void onDragObjectRemoved(boolean success) { 3670 mDeferDropAfterUninstall = false; 3671 mUninstallSuccessful = success; 3672 if (mDeferredAction != null) { 3673 mDeferredAction.run(); 3674 } 3675 } 3676 3677 @Override 3678 public float getIntrinsicIconScaleFactor() { 3679 return 1f; 3680 } 3681 3682 @Override 3683 public boolean supportsAppInfoDropTarget() { 3684 return true; 3685 } 3686 3687 @Override 3688 public boolean supportsDeleteDropTarget() { 3689 return true; 3690 } 3691 3692 public boolean isDropEnabled() { 3693 return true; 3694 } 3695 3696 @Override 3697 protected void dispatchRestoreInstanceState(SparseArray<Parcelable> container) { 3698 // We don't dispatch restoreInstanceState to our children using this code path. 3699 // Some pages will be restored immediately as their items are bound immediately, and 3700 // others we will need to wait until after their items are bound. 3701 mSavedStates = container; 3702 } 3703 3704 public void restoreInstanceStateForChild(int child) { 3705 if (mSavedStates != null) { 3706 mRestoredPages.add(child); 3707 CellLayout cl = (CellLayout) getChildAt(child); 3708 if (cl != null) { 3709 cl.restoreInstanceState(mSavedStates); 3710 } 3711 } 3712 } 3713 3714 public void restoreInstanceStateForRemainingPages() { 3715 int count = getChildCount(); 3716 for (int i = 0; i < count; i++) { 3717 if (!mRestoredPages.contains(i)) { 3718 restoreInstanceStateForChild(i); 3719 } 3720 } 3721 mRestoredPages.clear(); 3722 mSavedStates = null; 3723 } 3724 3725 @Override 3726 public void scrollLeft() { 3727 if (!workspaceInModalState() && !mIsSwitchingState) { 3728 super.scrollLeft(); 3729 } 3730 Folder openFolder = Folder.getOpen(mLauncher); 3731 if (openFolder != null) { 3732 openFolder.completeDragExit(); 3733 } 3734 } 3735 3736 @Override 3737 public void scrollRight() { 3738 if (!workspaceInModalState() && !mIsSwitchingState) { 3739 super.scrollRight(); 3740 } 3741 Folder openFolder = Folder.getOpen(mLauncher); 3742 if (openFolder != null) { 3743 openFolder.completeDragExit(); 3744 } 3745 } 3746 3747 /** 3748 * Returns a specific CellLayout 3749 */ 3750 CellLayout getParentCellLayoutForView(View v) { 3751 ArrayList<CellLayout> layouts = getWorkspaceAndHotseatCellLayouts(); 3752 for (CellLayout layout : layouts) { 3753 if (layout.getShortcutsAndWidgets().indexOfChild(v) > -1) { 3754 return layout; 3755 } 3756 } 3757 return null; 3758 } 3759 3760 /** 3761 * Returns a list of all the CellLayouts in the workspace. 3762 */ 3763 ArrayList<CellLayout> getWorkspaceAndHotseatCellLayouts() { 3764 ArrayList<CellLayout> layouts = new ArrayList<CellLayout>(); 3765 int screenCount = getChildCount(); 3766 for (int screen = 0; screen < screenCount; screen++) { 3767 layouts.add(((CellLayout) getChildAt(screen))); 3768 } 3769 if (mLauncher.getHotseat() != null) { 3770 layouts.add(mLauncher.getHotseat().getLayout()); 3771 } 3772 return layouts; 3773 } 3774 3775 /** 3776 * We should only use this to search for specific children. Do not use this method to modify 3777 * ShortcutsAndWidgetsContainer directly. Includes ShortcutAndWidgetContainers from 3778 * the hotseat and workspace pages 3779 */ 3780 ArrayList<ShortcutAndWidgetContainer> getAllShortcutAndWidgetContainers() { 3781 ArrayList<ShortcutAndWidgetContainer> childrenLayouts = new ArrayList<>(); 3782 int screenCount = getChildCount(); 3783 for (int screen = 0; screen < screenCount; screen++) { 3784 childrenLayouts.add(((CellLayout) getChildAt(screen)).getShortcutsAndWidgets()); 3785 } 3786 if (mLauncher.getHotseat() != null) { 3787 childrenLayouts.add(mLauncher.getHotseat().getLayout().getShortcutsAndWidgets()); 3788 } 3789 return childrenLayouts; 3790 } 3791 3792 public View getHomescreenIconByItemId(final long id) { 3793 return getFirstMatch(new ItemOperator() { 3794 3795 @Override 3796 public boolean evaluate(ItemInfo info, View v) { 3797 return info != null && info.id == id; 3798 } 3799 }); 3800 } 3801 3802 public View getViewForTag(final Object tag) { 3803 return getFirstMatch(new ItemOperator() { 3804 3805 @Override 3806 public boolean evaluate(ItemInfo info, View v) { 3807 return info == tag; 3808 } 3809 }); 3810 } 3811 3812 public LauncherAppWidgetHostView getWidgetForAppWidgetId(final int appWidgetId) { 3813 return (LauncherAppWidgetHostView) getFirstMatch(new ItemOperator() { 3814 3815 @Override 3816 public boolean evaluate(ItemInfo info, View v) { 3817 return (info instanceof LauncherAppWidgetInfo) && 3818 ((LauncherAppWidgetInfo) info).appWidgetId == appWidgetId; 3819 } 3820 }); 3821 } 3822 3823 public View getFirstMatch(final ItemOperator operator) { 3824 final View[] value = new View[1]; 3825 mapOverItems(MAP_NO_RECURSE, new ItemOperator() { 3826 @Override 3827 public boolean evaluate(ItemInfo info, View v) { 3828 if (operator.evaluate(info, v)) { 3829 value[0] = v; 3830 return true; 3831 } 3832 return false; 3833 } 3834 }); 3835 return value[0]; 3836 } 3837 3838 void clearDropTargets() { 3839 mapOverItems(MAP_NO_RECURSE, new ItemOperator() { 3840 @Override 3841 public boolean evaluate(ItemInfo info, View v) { 3842 if (v instanceof DropTarget) { 3843 mDragController.removeDropTarget((DropTarget) v); 3844 } 3845 // not done, process all the shortcuts 3846 return false; 3847 } 3848 }); 3849 } 3850 3851 /** 3852 * Removes items that match the {@param matcher}. When applications are removed 3853 * as a part of an update, this is called to ensure that other widgets and application 3854 * shortcuts are not removed. 3855 */ 3856 public void removeItemsByMatcher(final ItemInfoMatcher matcher) { 3857 ArrayList<CellLayout> cellLayouts = getWorkspaceAndHotseatCellLayouts(); 3858 for (final CellLayout layoutParent: cellLayouts) { 3859 final ViewGroup layout = layoutParent.getShortcutsAndWidgets(); 3860 3861 LongArrayMap<View> idToViewMap = new LongArrayMap<>(); 3862 ArrayList<ItemInfo> items = new ArrayList<>(); 3863 for (int j = 0; j < layout.getChildCount(); j++) { 3864 final View view = layout.getChildAt(j); 3865 if (view.getTag() instanceof ItemInfo) { 3866 ItemInfo item = (ItemInfo) view.getTag(); 3867 items.add(item); 3868 idToViewMap.put(item.id, view); 3869 } 3870 } 3871 3872 for (ItemInfo itemToRemove : matcher.filterItemInfos(items)) { 3873 View child = idToViewMap.get(itemToRemove.id); 3874 3875 if (child != null) { 3876 // Note: We can not remove the view directly from CellLayoutChildren as this 3877 // does not re-mark the spaces as unoccupied. 3878 layoutParent.removeViewInLayout(child); 3879 if (child instanceof DropTarget) { 3880 mDragController.removeDropTarget((DropTarget) child); 3881 } 3882 } else if (itemToRemove.container >= 0) { 3883 // The item may belong to a folder. 3884 View parent = idToViewMap.get(itemToRemove.container); 3885 if (parent != null) { 3886 ((FolderInfo) parent.getTag()).remove((ShortcutInfo) itemToRemove, false); 3887 } 3888 } 3889 } 3890 } 3891 3892 // Strip all the empty screens 3893 stripEmptyScreens(); 3894 } 3895 3896 public interface ItemOperator { 3897 /** 3898 * Process the next itemInfo, possibly with side-effect on the next item. 3899 * 3900 * @param info info for the shortcut 3901 * @param view view for the shortcut 3902 * @return true if done, false to continue the map 3903 */ 3904 public boolean evaluate(ItemInfo info, View view); 3905 } 3906 3907 /** 3908 * Map the operator over the shortcuts and widgets, return the first-non-null value. 3909 * 3910 * @param recurse true: iterate over folder children. false: op get the folders themselves. 3911 * @param op the operator to map over the shortcuts 3912 */ 3913 void mapOverItems(boolean recurse, ItemOperator op) { 3914 ArrayList<ShortcutAndWidgetContainer> containers = getAllShortcutAndWidgetContainers(); 3915 final int containerCount = containers.size(); 3916 for (int containerIdx = 0; containerIdx < containerCount; containerIdx++) { 3917 ShortcutAndWidgetContainer container = containers.get(containerIdx); 3918 // map over all the shortcuts on the workspace 3919 final int itemCount = container.getChildCount(); 3920 for (int itemIdx = 0; itemIdx < itemCount; itemIdx++) { 3921 View item = container.getChildAt(itemIdx); 3922 ItemInfo info = (ItemInfo) item.getTag(); 3923 if (recurse && info instanceof FolderInfo && item instanceof FolderIcon) { 3924 FolderIcon folder = (FolderIcon) item; 3925 ArrayList<View> folderChildren = folder.getFolder().getItemsInReadingOrder(); 3926 // map over all the children in the folder 3927 final int childCount = folderChildren.size(); 3928 for (int childIdx = 0; childIdx < childCount; childIdx++) { 3929 View child = folderChildren.get(childIdx); 3930 info = (ItemInfo) child.getTag(); 3931 if (op.evaluate(info, child)) { 3932 return; 3933 } 3934 } 3935 } else { 3936 if (op.evaluate(info, item)) { 3937 return; 3938 } 3939 } 3940 } 3941 } 3942 } 3943 3944 void updateShortcuts(ArrayList<ShortcutInfo> shortcuts) { 3945 int total = shortcuts.size(); 3946 final HashSet<ShortcutInfo> updates = new HashSet<ShortcutInfo>(total); 3947 final HashSet<Long> folderIds = new HashSet<>(); 3948 3949 for (int i = 0; i < total; i++) { 3950 ShortcutInfo s = shortcuts.get(i); 3951 updates.add(s); 3952 folderIds.add(s.container); 3953 } 3954 3955 mapOverItems(MAP_RECURSE, new ItemOperator() { 3956 @Override 3957 public boolean evaluate(ItemInfo info, View v) { 3958 if (info instanceof ShortcutInfo && v instanceof BubbleTextView && 3959 updates.contains(info)) { 3960 ShortcutInfo si = (ShortcutInfo) info; 3961 BubbleTextView shortcut = (BubbleTextView) v; 3962 Drawable oldIcon = getTextViewIcon(shortcut); 3963 boolean oldPromiseState = (oldIcon instanceof PreloadIconDrawable) 3964 && ((PreloadIconDrawable) oldIcon).hasNotCompleted(); 3965 shortcut.applyFromShortcutInfo(si, si.isPromise() != oldPromiseState); 3966 } 3967 // process all the shortcuts 3968 return false; 3969 } 3970 }); 3971 3972 // Update folder icons 3973 mapOverItems(MAP_NO_RECURSE, new ItemOperator() { 3974 @Override 3975 public boolean evaluate(ItemInfo info, View v) { 3976 if (info instanceof FolderInfo && folderIds.contains(info.id)) { 3977 ((FolderInfo) info).itemsChanged(false); 3978 } 3979 // process all the shortcuts 3980 return false; 3981 } 3982 }); 3983 } 3984 3985 public void updateIconBadges(final Set<PackageUserKey> updatedBadges) { 3986 final PackageUserKey packageUserKey = new PackageUserKey(null, null); 3987 mapOverItems(MAP_RECURSE, new ItemOperator() { 3988 @Override 3989 public boolean evaluate(ItemInfo info, View v) { 3990 if (info instanceof ShortcutInfo && v instanceof BubbleTextView 3991 && packageUserKey.updateFromItemInfo(info)) { 3992 if (updatedBadges.contains(packageUserKey)) { 3993 ((BubbleTextView) v).applyBadgeState(info); 3994 } 3995 } 3996 // process all the shortcuts 3997 return false; 3998 } 3999 }); 4000 } 4001 4002 public void removeAbandonedPromise(String packageName, UserHandle user) { 4003 HashSet<String> packages = new HashSet<>(1); 4004 packages.add(packageName); 4005 ItemInfoMatcher matcher = ItemInfoMatcher.ofPackages(packages, user); 4006 LauncherModel.deleteItemsFromDatabase(mLauncher, matcher); 4007 removeItemsByMatcher(matcher); 4008 } 4009 4010 public void updateRestoreItems(final HashSet<ItemInfo> updates) { 4011 mapOverItems(MAP_RECURSE, new ItemOperator() { 4012 @Override 4013 public boolean evaluate(ItemInfo info, View v) { 4014 if (info instanceof ShortcutInfo && v instanceof BubbleTextView 4015 && updates.contains(info)) { 4016 ((BubbleTextView) v).applyPromiseState(false /* promiseStateChanged */); 4017 } else if (v instanceof PendingAppWidgetHostView 4018 && info instanceof LauncherAppWidgetInfo 4019 && updates.contains(info)) { 4020 ((PendingAppWidgetHostView) v).applyState(); 4021 } 4022 // process all the shortcuts 4023 return false; 4024 } 4025 }); 4026 } 4027 4028 public void widgetsRestored(final ArrayList<LauncherAppWidgetInfo> changedInfo) { 4029 if (!changedInfo.isEmpty()) { 4030 DeferredWidgetRefresh widgetRefresh = new DeferredWidgetRefresh(changedInfo, 4031 mLauncher.getAppWidgetHost()); 4032 4033 LauncherAppWidgetInfo item = changedInfo.get(0); 4034 final AppWidgetProviderInfo widgetInfo; 4035 if (item.hasRestoreFlag(LauncherAppWidgetInfo.FLAG_ID_NOT_VALID)) { 4036 widgetInfo = AppWidgetManagerCompat 4037 .getInstance(mLauncher).findProvider(item.providerName, item.user); 4038 } else { 4039 widgetInfo = AppWidgetManagerCompat.getInstance(mLauncher) 4040 .getAppWidgetInfo(item.appWidgetId); 4041 } 4042 4043 if (widgetInfo != null) { 4044 // Re-inflate the widgets which have changed status 4045 widgetRefresh.run(); 4046 } else { 4047 // widgetRefresh will automatically run when the packages are updated. 4048 // For now just update the progress bars 4049 mapOverItems(MAP_NO_RECURSE, new ItemOperator() { 4050 @Override 4051 public boolean evaluate(ItemInfo info, View view) { 4052 if (view instanceof PendingAppWidgetHostView 4053 && changedInfo.contains(info)) { 4054 ((LauncherAppWidgetInfo) info).installProgress = 100; 4055 ((PendingAppWidgetHostView) view).applyState(); 4056 } 4057 // process all the shortcuts 4058 return false; 4059 } 4060 }); 4061 } 4062 } 4063 } 4064 4065 private void moveToScreen(int page, boolean animate) { 4066 if (!workspaceInModalState()) { 4067 if (animate) { 4068 snapToPage(page); 4069 } else { 4070 setCurrentPage(page); 4071 } 4072 } 4073 View child = getChildAt(page); 4074 if (child != null) { 4075 child.requestFocus(); 4076 } 4077 } 4078 4079 void moveToDefaultScreen(boolean animate) { 4080 moveToScreen(getDefaultPage(), animate); 4081 } 4082 4083 void moveToCustomContentScreen(boolean animate) { 4084 if (hasCustomContent()) { 4085 int ccIndex = getPageIndexForScreenId(CUSTOM_CONTENT_SCREEN_ID); 4086 if (animate) { 4087 snapToPage(ccIndex); 4088 } else { 4089 setCurrentPage(ccIndex); 4090 } 4091 View child = getChildAt(ccIndex); 4092 if (child != null) { 4093 child.requestFocus(); 4094 } 4095 } 4096 exitWidgetResizeMode(); 4097 } 4098 4099 @Override 4100 protected String getPageIndicatorDescription() { 4101 return getResources().getString(R.string.all_apps_button_label); 4102 } 4103 4104 @Override 4105 protected String getCurrentPageDescription() { 4106 if (hasCustomContent() && getNextPage() == 0) { 4107 return mCustomContentDescription; 4108 } 4109 int page = (mNextPage != INVALID_PAGE) ? mNextPage : mCurrentPage; 4110 return getPageDescription(page); 4111 } 4112 4113 private String getPageDescription(int page) { 4114 int delta = numCustomPages(); 4115 int nScreens = getChildCount() - delta; 4116 int extraScreenId = mScreenOrder.indexOf(EXTRA_EMPTY_SCREEN_ID); 4117 if (extraScreenId >= 0 && nScreens > 1) { 4118 if (page == extraScreenId) { 4119 return getContext().getString(R.string.workspace_new_page); 4120 } 4121 nScreens--; 4122 } 4123 if (nScreens == 0) { 4124 // When the workspace is not loaded, we do not know how many screen will be bound. 4125 return getContext().getString(R.string.all_apps_home_button_label); 4126 } 4127 return getContext().getString(R.string.workspace_scroll_format, 4128 page + 1 - delta, nScreens); 4129 } 4130 4131 @Override 4132 public void fillInLogContainerData(View v, ItemInfo info, Target target, Target targetParent) { 4133 target.gridX = info.cellX; 4134 target.gridY = info.cellY; 4135 target.pageIndex = getCurrentPage(); 4136 targetParent.containerType = ContainerType.WORKSPACE; 4137 if (info.container == LauncherSettings.Favorites.CONTAINER_HOTSEAT) { 4138 target.rank = info.rank; 4139 targetParent.containerType = ContainerType.HOTSEAT; 4140 } else if (info.container >= 0) { 4141 targetParent.containerType = ContainerType.FOLDER; 4142 } 4143 } 4144 4145 @Override 4146 public boolean enableFreeScroll() { 4147 if (getState() == State.OVERVIEW) { 4148 return super.enableFreeScroll(); 4149 } else { 4150 Log.w(TAG, "enableFreeScroll called but not in overview: state=" + getState()); 4151 return false; 4152 } 4153 } 4154 4155 /** 4156 * Used as a workaround to ensure that the AppWidgetService receives the 4157 * PACKAGE_ADDED broadcast before updating widgets. 4158 */ 4159 private class DeferredWidgetRefresh implements Runnable { 4160 private final ArrayList<LauncherAppWidgetInfo> mInfos; 4161 private final LauncherAppWidgetHost mHost; 4162 private final Handler mHandler; 4163 4164 private boolean mRefreshPending; 4165 4166 public DeferredWidgetRefresh(ArrayList<LauncherAppWidgetInfo> infos, 4167 LauncherAppWidgetHost host) { 4168 mInfos = infos; 4169 mHost = host; 4170 mHandler = new Handler(); 4171 mRefreshPending = true; 4172 4173 mHost.addProviderChangeListener(this); 4174 // Force refresh after 10 seconds, if we don't get the provider changed event. 4175 // This could happen when the provider is no longer available in the app. 4176 mHandler.postDelayed(this, 10000); 4177 } 4178 4179 @Override 4180 public void run() { 4181 mHost.removeProviderChangeListener(this); 4182 mHandler.removeCallbacks(this); 4183 4184 if (!mRefreshPending) { 4185 return; 4186 } 4187 4188 mRefreshPending = false; 4189 4190 mapOverItems(MAP_NO_RECURSE, new ItemOperator() { 4191 @Override 4192 public boolean evaluate(ItemInfo info, View view) { 4193 if (view instanceof PendingAppWidgetHostView && mInfos.contains(info)) { 4194 mLauncher.removeItem(view, info, false /* deleteFromDb */); 4195 mLauncher.bindAppWidget((LauncherAppWidgetInfo) info); 4196 } 4197 // process all the shortcuts 4198 return false; 4199 } 4200 }); 4201 } 4202 } 4203 4204 public interface OnStateChangeListener { 4205 4206 /** 4207 * Called when the workspace state is changing. 4208 * @param toState final state 4209 * @param targetAnim animation which will be played during the transition or null. 4210 */ 4211 void prepareStateChange(State toState, AnimatorSet targetAnim); 4212 } 4213 4214 public static final boolean isQsbContainerPage(int pageNo) { 4215 return pageNo == 0; 4216 } 4217 4218 private class StateTransitionListener extends AnimatorListenerAdapter 4219 implements AnimatorUpdateListener { 4220 @Override 4221 public void onAnimationUpdate(ValueAnimator anim) { 4222 mTransitionProgress = anim.getAnimatedFraction(); 4223 } 4224 4225 @Override 4226 public void onAnimationStart(Animator animation) { 4227 if (mState == State.SPRING_LOADED) { 4228 // Show the page indicator at the same time as the rest of the transition. 4229 showPageIndicatorAtCurrentScroll(); 4230 } 4231 mTransitionProgress = 0; 4232 } 4233 4234 @Override 4235 public void onAnimationEnd(Animator animation) { 4236 onEndStateTransition(); 4237 } 4238 } 4239} 4240