Workspace.java revision d209f9e4e9cadf3f5c56c6ce25ec61f37493a2e9
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.LayoutTransition; 22import android.animation.ObjectAnimator; 23import android.animation.PropertyValuesHolder; 24import android.annotation.SuppressLint; 25import android.annotation.TargetApi; 26import android.app.WallpaperManager; 27import android.appwidget.AppWidgetHostView; 28import android.appwidget.AppWidgetProviderInfo; 29import android.content.ComponentName; 30import android.content.Context; 31import android.content.SharedPreferences; 32import android.content.res.Resources; 33import android.content.res.TypedArray; 34import android.graphics.Bitmap; 35import android.graphics.Canvas; 36import android.graphics.Matrix; 37import android.graphics.Paint; 38import android.graphics.Point; 39import android.graphics.PointF; 40import android.graphics.Rect; 41import android.graphics.Region.Op; 42import android.graphics.drawable.Drawable; 43import android.os.AsyncTask; 44import android.os.Build; 45import android.os.Bundle; 46import android.os.Handler; 47import android.os.IBinder; 48import android.os.Parcelable; 49import android.util.AttributeSet; 50import android.util.Log; 51import android.util.SparseArray; 52import android.view.Choreographer; 53import android.view.Display; 54import android.view.MotionEvent; 55import android.view.View; 56import android.view.ViewGroup; 57import android.view.accessibility.AccessibilityManager; 58import android.view.animation.DecelerateInterpolator; 59import android.view.animation.Interpolator; 60import android.widget.TextView; 61 62import com.android.launcher3.FolderIcon.FolderRingAnimator; 63import com.android.launcher3.Launcher.CustomContentCallbacks; 64import com.android.launcher3.Launcher.LauncherOverlay; 65import com.android.launcher3.LauncherSettings.Favorites; 66import com.android.launcher3.UninstallDropTarget.UninstallSource; 67import com.android.launcher3.accessibility.LauncherAccessibilityDelegate; 68import com.android.launcher3.accessibility.LauncherAccessibilityDelegate.AccessibilityDragSource; 69import com.android.launcher3.accessibility.OverviewScreenAccessibilityDelegate; 70import com.android.launcher3.compat.UserHandleCompat; 71import com.android.launcher3.config.ProviderConfig; 72import com.android.launcher3.util.LongArrayMap; 73import com.android.launcher3.util.Thunk; 74import com.android.launcher3.util.WallpaperUtils; 75import com.android.launcher3.widget.PendingAddShortcutInfo; 76import com.android.launcher3.widget.PendingAddWidgetInfo; 77 78import java.util.ArrayList; 79import java.util.HashMap; 80import java.util.HashSet; 81import java.util.concurrent.atomic.AtomicInteger; 82 83/** 84 * The workspace is a wide area with a wallpaper and a finite number of pages. 85 * Each page contains a number of icons, folders or widgets the user can 86 * interact with. A workspace is meant to be used with a fixed width only. 87 */ 88public class Workspace extends PagedView 89 implements DropTarget, DragSource, DragScroller, View.OnTouchListener, 90 DragController.DragListener, LauncherTransitionable, ViewGroup.OnHierarchyChangeListener, 91 Insettable, UninstallSource, AccessibilityDragSource, Stats.LaunchSourceProvider { 92 private static final String TAG = "Launcher.Workspace"; 93 94 private static boolean ENFORCE_DRAG_EVENT_ORDER = false; 95 96 private static final int SNAP_OFF_EMPTY_SCREEN_DURATION = 400; 97 private static final int FADE_EMPTY_SCREEN_DURATION = 150; 98 99 private static final int ADJACENT_SCREEN_DROP_DURATION = 300; 100 101 private static final boolean MAP_NO_RECURSE = false; 102 private static final boolean MAP_RECURSE = true; 103 104 // The screen id used for the empty screen always present to the right. 105 public final static long EXTRA_EMPTY_SCREEN_ID = -201; 106 private final static long CUSTOM_CONTENT_SCREEN_ID = -301; 107 108 private static final long CUSTOM_CONTENT_GESTURE_DELAY = 200; 109 private long mTouchDownTime = -1; 110 private long mCustomContentShowTime = -1; 111 112 private LayoutTransition mLayoutTransition; 113 @Thunk final WallpaperManager mWallpaperManager; 114 @Thunk IBinder mWindowToken; 115 116 private int mOriginalDefaultPage; 117 private int mDefaultPage; 118 119 private ShortcutAndWidgetContainer mDragSourceInternal; 120 121 @Thunk LongArrayMap<CellLayout> mWorkspaceScreens = new LongArrayMap<>(); 122 @Thunk ArrayList<Long> mScreenOrder = new ArrayList<Long>(); 123 124 @Thunk Runnable mRemoveEmptyScreenRunnable; 125 @Thunk boolean mDeferRemoveExtraEmptyScreen = false; 126 @Thunk boolean mAddNewPageOnDrag = true; 127 128 /** 129 * CellInfo for the cell that is currently being dragged 130 */ 131 private CellLayout.CellInfo mDragInfo; 132 133 /** 134 * Target drop area calculated during last acceptDrop call. 135 */ 136 @Thunk int[] mTargetCell = new int[2]; 137 private int mDragOverX = -1; 138 private int mDragOverY = -1; 139 140 private static Rect mLandscapeCellLayoutMetrics = null; 141 private static Rect mPortraitCellLayoutMetrics = null; 142 143 CustomContentCallbacks mCustomContentCallbacks; 144 boolean mCustomContentShowing; 145 private float mLastCustomContentScrollProgress = -1f; 146 private String mCustomContentDescription = ""; 147 148 /** 149 * The CellLayout that is currently being dragged over 150 */ 151 @Thunk CellLayout mDragTargetLayout = null; 152 /** 153 * The CellLayout that we will show as glowing 154 */ 155 private CellLayout mDragOverlappingLayout = null; 156 157 /** 158 * The CellLayout which will be dropped to 159 */ 160 private CellLayout mDropToLayout = null; 161 162 @Thunk Launcher mLauncher; 163 @Thunk IconCache mIconCache; 164 @Thunk DragController mDragController; 165 166 // These are temporary variables to prevent having to allocate a new object just to 167 // return an (x, y) value from helper functions. Do NOT use them to maintain other state. 168 private static final Rect sTempRect = new Rect(); 169 private final int[] mTempXY = new int[2]; 170 @Thunk float[] mDragViewVisualCenter = new float[2]; 171 private float[] mTempCellLayoutCenterCoordinates = new float[2]; 172 private int[] mTempVisiblePagesRange = new int[2]; 173 174 private SpringLoadedDragController mSpringLoadedDragController; 175 private float mSpringLoadedShrinkFactor; 176 private float mOverviewModeShrinkFactor; 177 178 // State variable that indicates whether the pages are small (ie when you're 179 // in all apps or customize mode) 180 181 enum State { 182 NORMAL (SearchDropTargetBar.State.SEARCH_BAR), 183 NORMAL_HIDDEN (SearchDropTargetBar.State.INVISIBLE), 184 SPRING_LOADED (SearchDropTargetBar.State.DROP_TARGET), 185 OVERVIEW (SearchDropTargetBar.State.INVISIBLE), 186 OVERVIEW_HIDDEN (SearchDropTargetBar.State.INVISIBLE); 187 188 private final SearchDropTargetBar.State mBarState; 189 190 State(SearchDropTargetBar.State searchBarState) { 191 mBarState = searchBarState; 192 } 193 194 public SearchDropTargetBar.State getSearchDropTargetBarState() { 195 return mBarState; 196 } 197 }; 198 199 private State mState = State.NORMAL; 200 private boolean mIsSwitchingState = false; 201 202 boolean mAnimatingViewIntoPlace = false; 203 boolean mChildrenLayersEnabled = true; 204 205 private boolean mStripScreensOnPageStopMoving = false; 206 207 /** Is the user is dragging an item near the edge of a page? */ 208 private boolean mInScrollArea = false; 209 210 private HolographicOutlineHelper mOutlineHelper; 211 @Thunk Bitmap mDragOutline = null; 212 public static final int DRAG_BITMAP_PADDING = 2; 213 private boolean mWorkspaceFadeInAdjacentScreens; 214 215 WallpaperOffsetInterpolator mWallpaperOffset; 216 @Thunk boolean mWallpaperIsLiveWallpaper; 217 @Thunk int mNumPagesForWallpaperParallax; 218 @Thunk float mLastSetWallpaperOffsetSteps = 0; 219 220 @Thunk Runnable mDelayedResizeRunnable; 221 private Runnable mDelayedSnapToPageRunnable; 222 223 // Variables relating to the creation of user folders by hovering shortcuts over shortcuts 224 private static final int FOLDER_CREATION_TIMEOUT = 0; 225 public static final int REORDER_TIMEOUT = 350; 226 private final Alarm mFolderCreationAlarm = new Alarm(); 227 private final Alarm mReorderAlarm = new Alarm(); 228 @Thunk FolderRingAnimator mDragFolderRingAnimator = null; 229 private FolderIcon mDragOverFolderIcon = null; 230 private boolean mCreateUserFolderOnDrop = false; 231 private boolean mAddToExistingFolderOnDrop = false; 232 private float mMaxDistanceForFolderCreation; 233 234 private final Canvas mCanvas = new Canvas(); 235 236 // Variables relating to touch disambiguation (scrolling workspace vs. scrolling a widget) 237 private float mXDown; 238 private float mYDown; 239 final static float START_DAMPING_TOUCH_SLOP_ANGLE = (float) Math.PI / 6; 240 final static float MAX_SWIPE_ANGLE = (float) Math.PI / 3; 241 final static float TOUCH_SLOP_DAMPING_FACTOR = 4; 242 243 // Relating to the animation of items being dropped externally 244 public static final int ANIMATE_INTO_POSITION_AND_DISAPPEAR = 0; 245 public static final int ANIMATE_INTO_POSITION_AND_REMAIN = 1; 246 public static final int ANIMATE_INTO_POSITION_AND_RESIZE = 2; 247 public static final int COMPLETE_TWO_STAGE_WIDGET_DROP_ANIMATION = 3; 248 public static final int CANCEL_TWO_STAGE_WIDGET_DROP_ANIMATION = 4; 249 250 // Related to dragging, folder creation and reordering 251 private static final int DRAG_MODE_NONE = 0; 252 private static final int DRAG_MODE_CREATE_FOLDER = 1; 253 private static final int DRAG_MODE_ADD_TO_FOLDER = 2; 254 private static final int DRAG_MODE_REORDER = 3; 255 private int mDragMode = DRAG_MODE_NONE; 256 @Thunk int mLastReorderX = -1; 257 @Thunk int mLastReorderY = -1; 258 259 private SparseArray<Parcelable> mSavedStates; 260 private final ArrayList<Integer> mRestoredPages = new ArrayList<Integer>(); 261 262 private float mCurrentScale; 263 private float mTransitionProgress; 264 265 @Thunk Runnable mDeferredAction; 266 private boolean mDeferDropAfterUninstall; 267 private boolean mUninstallSuccessful; 268 269 // State related to Launcher Overlay 270 LauncherOverlay mLauncherOverlay; 271 boolean mScrollInteractionBegan; 272 boolean mStartedSendingScrollEvents; 273 boolean mShouldSendPageSettled; 274 int mLastOverlaySroll = 0; 275 276 // Handles workspace state transitions 277 private WorkspaceStateTransitionAnimation mStateTransitionAnimation; 278 279 private AccessibilityDelegate mPagesAccessibilityDelegate; 280 281 private final Runnable mBindPages = new Runnable() { 282 @Override 283 public void run() { 284 mLauncher.getModel().bindRemainingSynchronousPages(); 285 } 286 }; 287 288 /** 289 * Used to inflate the Workspace from XML. 290 * 291 * @param context The application's context. 292 * @param attrs The attributes set containing the Workspace's customization values. 293 */ 294 public Workspace(Context context, AttributeSet attrs) { 295 this(context, attrs, 0); 296 } 297 298 /** 299 * Used to inflate the Workspace from XML. 300 * 301 * @param context The application's context. 302 * @param attrs The attributes set containing the Workspace's customization values. 303 * @param defStyle Unused. 304 */ 305 public Workspace(Context context, AttributeSet attrs, int defStyle) { 306 super(context, attrs, defStyle); 307 308 mOutlineHelper = HolographicOutlineHelper.obtain(context); 309 310 mLauncher = (Launcher) context; 311 mStateTransitionAnimation = new WorkspaceStateTransitionAnimation(mLauncher, this); 312 final Resources res = getResources(); 313 DeviceProfile grid = mLauncher.getDeviceProfile(); 314 mWorkspaceFadeInAdjacentScreens = grid.shouldFadeAdjacentWorkspaceScreens(); 315 mFadeInAdjacentScreens = false; 316 mWallpaperManager = WallpaperManager.getInstance(context); 317 318 TypedArray a = context.obtainStyledAttributes(attrs, 319 R.styleable.Workspace, defStyle, 0); 320 mSpringLoadedShrinkFactor = 321 res.getInteger(R.integer.config_workspaceSpringLoadShrinkPercentage) / 100.0f; 322 mOverviewModeShrinkFactor = 323 res.getInteger(R.integer.config_workspaceOverviewShrinkPercentage) / 100f; 324 mOriginalDefaultPage = mDefaultPage = a.getInt(R.styleable.Workspace_defaultScreen, 1); 325 a.recycle(); 326 327 setOnHierarchyChangeListener(this); 328 setHapticFeedbackEnabled(false); 329 330 initWorkspace(); 331 332 // Disable multitouch across the workspace/all apps/customize tray 333 setMotionEventSplittingEnabled(true); 334 } 335 336 @Override 337 public void setInsets(Rect insets) { 338 mInsets.set(insets); 339 340 CellLayout customScreen = getScreenWithId(CUSTOM_CONTENT_SCREEN_ID); 341 if (customScreen != null) { 342 View customContent = customScreen.getShortcutsAndWidgets().getChildAt(0); 343 if (customContent instanceof Insettable) { 344 ((Insettable) customContent).setInsets(mInsets); 345 } 346 } 347 } 348 349 // estimate the size of a widget with spans hSpan, vSpan. return MAX_VALUE for each 350 // dimension if unsuccessful 351 public int[] estimateItemSize(ItemInfo itemInfo, boolean springLoaded) { 352 int[] size = new int[2]; 353 if (getChildCount() > 0) { 354 // Use the first non-custom page to estimate the child position 355 CellLayout cl = (CellLayout) getChildAt(numCustomPages()); 356 Rect r = estimateItemPosition(cl, itemInfo, 0, 0, itemInfo.spanX, itemInfo.spanY); 357 size[0] = r.width(); 358 size[1] = r.height(); 359 if (springLoaded) { 360 size[0] *= mSpringLoadedShrinkFactor; 361 size[1] *= mSpringLoadedShrinkFactor; 362 } 363 return size; 364 } else { 365 size[0] = Integer.MAX_VALUE; 366 size[1] = Integer.MAX_VALUE; 367 return size; 368 } 369 } 370 371 public Rect estimateItemPosition(CellLayout cl, ItemInfo pendingInfo, 372 int hCell, int vCell, int hSpan, int vSpan) { 373 Rect r = new Rect(); 374 cl.cellToRect(hCell, vCell, hSpan, vSpan, r); 375 return r; 376 } 377 378 @Override 379 public void onDragStart(final DragSource source, ItemInfo info, int dragAction) { 380 if (ENFORCE_DRAG_EVENT_ORDER) { 381 enfoceDragParity("onDragStart", 0, 0); 382 } 383 384 updateChildrenLayersEnabled(false); 385 mLauncher.lockScreenOrientation(); 386 mLauncher.onInteractionBegin(); 387 // Prevent any Un/InstallShortcutReceivers from updating the db while we are dragging 388 InstallShortcutReceiver.enableInstallQueue(); 389 390 if (mAddNewPageOnDrag) { 391 mDeferRemoveExtraEmptyScreen = false; 392 addExtraEmptyScreenOnDrag(); 393 } 394 } 395 396 public void setAddNewPageOnDrag(boolean addPage) { 397 mAddNewPageOnDrag = addPage; 398 } 399 400 public void deferRemoveExtraEmptyScreen() { 401 mDeferRemoveExtraEmptyScreen = true; 402 } 403 404 @Override 405 public void onDragEnd() { 406 if (ENFORCE_DRAG_EVENT_ORDER) { 407 enfoceDragParity("onDragEnd", 0, 0); 408 } 409 410 if (!mDeferRemoveExtraEmptyScreen) { 411 removeExtraEmptyScreen(true, mDragSourceInternal != null); 412 } 413 414 updateChildrenLayersEnabled(false); 415 mLauncher.unlockScreenOrientation(false); 416 417 // Re-enable any Un/InstallShortcutReceiver and now process any queued items 418 InstallShortcutReceiver.disableAndFlushInstallQueue(getContext()); 419 420 mDragSourceInternal = null; 421 mLauncher.onInteractionEnd(); 422 } 423 424 /** 425 * Initializes various states for this workspace. 426 */ 427 protected void initWorkspace() { 428 mCurrentPage = mDefaultPage; 429 LauncherAppState app = LauncherAppState.getInstance(); 430 DeviceProfile grid = mLauncher.getDeviceProfile(); 431 mIconCache = app.getIconCache(); 432 setWillNotDraw(false); 433 setClipChildren(false); 434 setClipToPadding(false); 435 setChildrenDrawnWithCacheEnabled(true); 436 437 setMinScale(mOverviewModeShrinkFactor); 438 setupLayoutTransition(); 439 440 mWallpaperOffset = new WallpaperOffsetInterpolator(); 441 442 mMaxDistanceForFolderCreation = (0.55f * grid.iconSizePx); 443 444 // Set the wallpaper dimensions when Launcher starts up 445 setWallpaperDimension(); 446 447 setEdgeGlowColor(getResources().getColor(R.color.workspace_edge_effect_color)); 448 } 449 450 private void setupLayoutTransition() { 451 // We want to show layout transitions when pages are deleted, to close the gap. 452 mLayoutTransition = new LayoutTransition(); 453 mLayoutTransition.enableTransitionType(LayoutTransition.DISAPPEARING); 454 mLayoutTransition.enableTransitionType(LayoutTransition.CHANGE_DISAPPEARING); 455 mLayoutTransition.disableTransitionType(LayoutTransition.APPEARING); 456 mLayoutTransition.disableTransitionType(LayoutTransition.CHANGE_APPEARING); 457 setLayoutTransition(mLayoutTransition); 458 } 459 460 void enableLayoutTransitions() { 461 setLayoutTransition(mLayoutTransition); 462 } 463 void disableLayoutTransitions() { 464 setLayoutTransition(null); 465 } 466 467 @Override 468 public void onChildViewAdded(View parent, View child) { 469 if (!(child instanceof CellLayout)) { 470 throw new IllegalArgumentException("A Workspace can only have CellLayout children."); 471 } 472 CellLayout cl = ((CellLayout) child); 473 cl.setOnInterceptTouchListener(this); 474 cl.setClickable(true); 475 cl.setImportantForAccessibility(IMPORTANT_FOR_ACCESSIBILITY_NO); 476 super.onChildViewAdded(parent, child); 477 } 478 479 protected boolean shouldDrawChild(View child) { 480 final CellLayout cl = (CellLayout) child; 481 return super.shouldDrawChild(child) && 482 (mIsSwitchingState || 483 cl.getShortcutsAndWidgets().getAlpha() > 0 || 484 cl.getBackgroundAlpha() > 0); 485 } 486 487 /** 488 * @return The open folder on the current screen, or null if there is none 489 */ 490 public Folder getOpenFolder() { 491 DragLayer dragLayer = mLauncher.getDragLayer(); 492 int count = dragLayer.getChildCount(); 493 for (int i = 0; i < count; i++) { 494 View child = dragLayer.getChildAt(i); 495 if (child instanceof Folder) { 496 Folder folder = (Folder) child; 497 if (folder.getInfo().opened) 498 return folder; 499 } 500 } 501 return null; 502 } 503 504 boolean isTouchActive() { 505 return mTouchState != TOUCH_STATE_REST; 506 } 507 508 public void removeAllWorkspaceScreens() { 509 // Disable all layout transitions before removing all pages to ensure that we don't get the 510 // transition animations competing with us changing the scroll when we add pages or the 511 // custom content screen 512 disableLayoutTransitions(); 513 514 // Since we increment the current page when we call addCustomContentPage via bindScreens 515 // (and other places), we need to adjust the current page back when we clear the pages 516 if (hasCustomContent()) { 517 removeCustomContentPage(); 518 } 519 520 // Remove the pages and clear the screen models 521 removeAllViews(); 522 mScreenOrder.clear(); 523 mWorkspaceScreens.clear(); 524 525 // Re-enable the layout transitions 526 enableLayoutTransitions(); 527 } 528 529 public long insertNewWorkspaceScreenBeforeEmptyScreen(long screenId) { 530 // Find the index to insert this view into. If the empty screen exists, then 531 // insert it before that. 532 int insertIndex = mScreenOrder.indexOf(EXTRA_EMPTY_SCREEN_ID); 533 if (insertIndex < 0) { 534 insertIndex = mScreenOrder.size(); 535 } 536 return insertNewWorkspaceScreen(screenId, insertIndex); 537 } 538 539 public long insertNewWorkspaceScreen(long screenId) { 540 return insertNewWorkspaceScreen(screenId, getChildCount()); 541 } 542 543 public long insertNewWorkspaceScreen(long screenId, int insertIndex) { 544 if (mWorkspaceScreens.containsKey(screenId)) { 545 throw new RuntimeException("Screen id " + screenId + " already exists!"); 546 } 547 548 // Inflate the cell layout, but do not add it automatically so that we can get the newly 549 // created CellLayout. 550 CellLayout newScreen = (CellLayout) mLauncher.getLayoutInflater().inflate( 551 R.layout.workspace_screen, this, false /* attachToRoot */); 552 553 newScreen.setOnLongClickListener(mLongClickListener); 554 newScreen.setOnClickListener(mLauncher); 555 newScreen.setSoundEffectsEnabled(false); 556 mWorkspaceScreens.put(screenId, newScreen); 557 mScreenOrder.add(insertIndex, screenId); 558 addView(newScreen, insertIndex); 559 560 LauncherAccessibilityDelegate delegate = 561 LauncherAppState.getInstance().getAccessibilityDelegate(); 562 if (delegate != null && delegate.isInAccessibleDrag()) { 563 newScreen.enableAccessibleDrag(true, CellLayout.WORKSPACE_ACCESSIBILITY_DRAG); 564 } 565 return screenId; 566 } 567 568 public void createCustomContentContainer() { 569 CellLayout customScreen = (CellLayout) 570 mLauncher.getLayoutInflater().inflate(R.layout.workspace_screen, this, false); 571 customScreen.disableDragTarget(); 572 573 mWorkspaceScreens.put(CUSTOM_CONTENT_SCREEN_ID, customScreen); 574 mScreenOrder.add(0, CUSTOM_CONTENT_SCREEN_ID); 575 576 // We want no padding on the custom content 577 customScreen.setPadding(0, 0, 0, 0); 578 579 addFullScreenPage(customScreen); 580 581 // Ensure that the current page and default page are maintained. 582 mDefaultPage = mOriginalDefaultPage + 1; 583 584 // Update the custom content hint 585 if (mRestorePage != INVALID_RESTORE_PAGE) { 586 mRestorePage = mRestorePage + 1; 587 } else { 588 setCurrentPage(getCurrentPage() + 1); 589 } 590 } 591 592 public void removeCustomContentPage() { 593 CellLayout customScreen = getScreenWithId(CUSTOM_CONTENT_SCREEN_ID); 594 if (customScreen == null) { 595 throw new RuntimeException("Expected custom content screen to exist"); 596 } 597 598 mWorkspaceScreens.remove(CUSTOM_CONTENT_SCREEN_ID); 599 mScreenOrder.remove(CUSTOM_CONTENT_SCREEN_ID); 600 removeView(customScreen); 601 602 if (mCustomContentCallbacks != null) { 603 mCustomContentCallbacks.onScrollProgressChanged(0); 604 mCustomContentCallbacks.onHide(); 605 } 606 607 mCustomContentCallbacks = null; 608 609 // Ensure that the current page and default page are maintained. 610 mDefaultPage = mOriginalDefaultPage - 1; 611 612 // Update the custom content hint 613 if (mRestorePage != INVALID_RESTORE_PAGE) { 614 mRestorePage = mRestorePage - 1; 615 } else { 616 setCurrentPage(getCurrentPage() - 1); 617 } 618 } 619 620 public void addToCustomContentPage(View customContent, CustomContentCallbacks callbacks, 621 String description) { 622 if (getPageIndexForScreenId(CUSTOM_CONTENT_SCREEN_ID) < 0) { 623 throw new RuntimeException("Expected custom content screen to exist"); 624 } 625 626 // Add the custom content to the full screen custom page 627 CellLayout customScreen = getScreenWithId(CUSTOM_CONTENT_SCREEN_ID); 628 int spanX = customScreen.getCountX(); 629 int spanY = customScreen.getCountY(); 630 CellLayout.LayoutParams lp = new CellLayout.LayoutParams(0, 0, spanX, spanY); 631 lp.canReorder = false; 632 lp.isFullscreen = true; 633 if (customContent instanceof Insettable) { 634 ((Insettable)customContent).setInsets(mInsets); 635 } 636 637 // Verify that the child is removed from any existing parent. 638 if (customContent.getParent() instanceof ViewGroup) { 639 ViewGroup parent = (ViewGroup) customContent.getParent(); 640 parent.removeView(customContent); 641 } 642 customScreen.removeAllViews(); 643 customScreen.addViewToCellLayout(customContent, 0, 0, lp, true); 644 mCustomContentDescription = description; 645 646 mCustomContentCallbacks = callbacks; 647 } 648 649 public void addExtraEmptyScreenOnDrag() { 650 boolean lastChildOnScreen = false; 651 boolean childOnFinalScreen = false; 652 653 // Cancel any pending removal of empty screen 654 mRemoveEmptyScreenRunnable = null; 655 656 if (mDragSourceInternal != null) { 657 if (mDragSourceInternal.getChildCount() == 1) { 658 lastChildOnScreen = true; 659 } 660 CellLayout cl = (CellLayout) mDragSourceInternal.getParent(); 661 if (indexOfChild(cl) == getChildCount() - 1) { 662 childOnFinalScreen = true; 663 } 664 } 665 666 // If this is the last item on the final screen 667 if (lastChildOnScreen && childOnFinalScreen) { 668 return; 669 } 670 if (!mWorkspaceScreens.containsKey(EXTRA_EMPTY_SCREEN_ID)) { 671 insertNewWorkspaceScreen(EXTRA_EMPTY_SCREEN_ID); 672 } 673 } 674 675 public boolean addExtraEmptyScreen() { 676 if (!mWorkspaceScreens.containsKey(EXTRA_EMPTY_SCREEN_ID)) { 677 insertNewWorkspaceScreen(EXTRA_EMPTY_SCREEN_ID); 678 return true; 679 } 680 return false; 681 } 682 683 private void convertFinalScreenToEmptyScreenIfNecessary() { 684 if (mLauncher.isWorkspaceLoading()) { 685 // Invalid and dangerous operation if workspace is loading 686 Launcher.addDumpLog(TAG, " - workspace loading, skip", true); 687 return; 688 } 689 690 if (hasExtraEmptyScreen() || mScreenOrder.size() == 0) return; 691 long finalScreenId = mScreenOrder.get(mScreenOrder.size() - 1); 692 693 if (finalScreenId == CUSTOM_CONTENT_SCREEN_ID) return; 694 CellLayout finalScreen = mWorkspaceScreens.get(finalScreenId); 695 696 // If the final screen is empty, convert it to the extra empty screen 697 if (finalScreen.getShortcutsAndWidgets().getChildCount() == 0 && 698 !finalScreen.isDropPending()) { 699 mWorkspaceScreens.remove(finalScreenId); 700 mScreenOrder.remove(finalScreenId); 701 702 // if this is the last non-custom content screen, convert it to the empty screen 703 mWorkspaceScreens.put(EXTRA_EMPTY_SCREEN_ID, finalScreen); 704 mScreenOrder.add(EXTRA_EMPTY_SCREEN_ID); 705 706 // Update the model if we have changed any screens 707 mLauncher.getModel().updateWorkspaceScreenOrder(mLauncher, mScreenOrder); 708 } 709 } 710 711 public void removeExtraEmptyScreen(final boolean animate, boolean stripEmptyScreens) { 712 removeExtraEmptyScreenDelayed(animate, null, 0, stripEmptyScreens); 713 } 714 715 public void removeExtraEmptyScreenDelayed(final boolean animate, final Runnable onComplete, 716 final int delay, final boolean stripEmptyScreens) { 717 if (mLauncher.isWorkspaceLoading()) { 718 // Don't strip empty screens if the workspace is still loading 719 Launcher.addDumpLog(TAG, " - workspace loading, skip", true); 720 return; 721 } 722 723 if (delay > 0) { 724 postDelayed(new Runnable() { 725 @Override 726 public void run() { 727 removeExtraEmptyScreenDelayed(animate, onComplete, 0, stripEmptyScreens); 728 } 729 }, delay); 730 return; 731 } 732 733 convertFinalScreenToEmptyScreenIfNecessary(); 734 if (hasExtraEmptyScreen()) { 735 int emptyIndex = mScreenOrder.indexOf(EXTRA_EMPTY_SCREEN_ID); 736 if (getNextPage() == emptyIndex) { 737 snapToPage(getNextPage() - 1, SNAP_OFF_EMPTY_SCREEN_DURATION); 738 fadeAndRemoveEmptyScreen(SNAP_OFF_EMPTY_SCREEN_DURATION, FADE_EMPTY_SCREEN_DURATION, 739 onComplete, stripEmptyScreens); 740 } else { 741 snapToPage(getNextPage(), 0); 742 fadeAndRemoveEmptyScreen(0, FADE_EMPTY_SCREEN_DURATION, 743 onComplete, stripEmptyScreens); 744 } 745 return; 746 } else if (stripEmptyScreens) { 747 // If we're not going to strip the empty screens after removing 748 // the extra empty screen, do it right away. 749 stripEmptyScreens(); 750 } 751 752 if (onComplete != null) { 753 onComplete.run(); 754 } 755 } 756 757 private void fadeAndRemoveEmptyScreen(int delay, int duration, final Runnable onComplete, 758 final boolean stripEmptyScreens) { 759 // XXX: Do we need to update LM workspace screens below? 760 PropertyValuesHolder alpha = PropertyValuesHolder.ofFloat("alpha", 0f); 761 PropertyValuesHolder bgAlpha = PropertyValuesHolder.ofFloat("backgroundAlpha", 0f); 762 763 final CellLayout cl = mWorkspaceScreens.get(EXTRA_EMPTY_SCREEN_ID); 764 765 mRemoveEmptyScreenRunnable = new Runnable() { 766 @Override 767 public void run() { 768 if (hasExtraEmptyScreen()) { 769 mWorkspaceScreens.remove(EXTRA_EMPTY_SCREEN_ID); 770 mScreenOrder.remove(EXTRA_EMPTY_SCREEN_ID); 771 removeView(cl); 772 if (stripEmptyScreens) { 773 stripEmptyScreens(); 774 } 775 } 776 } 777 }; 778 779 ObjectAnimator oa = ObjectAnimator.ofPropertyValuesHolder(cl, alpha, bgAlpha); 780 oa.setDuration(duration); 781 oa.setStartDelay(delay); 782 oa.addListener(new AnimatorListenerAdapter() { 783 @Override 784 public void onAnimationEnd(Animator animation) { 785 if (mRemoveEmptyScreenRunnable != null) { 786 mRemoveEmptyScreenRunnable.run(); 787 } 788 if (onComplete != null) { 789 onComplete.run(); 790 } 791 } 792 }); 793 oa.start(); 794 } 795 796 public boolean hasExtraEmptyScreen() { 797 int nScreens = getChildCount(); 798 nScreens = nScreens - numCustomPages(); 799 return mWorkspaceScreens.containsKey(EXTRA_EMPTY_SCREEN_ID) && nScreens > 1; 800 } 801 802 public long commitExtraEmptyScreen() { 803 if (mLauncher.isWorkspaceLoading()) { 804 // Invalid and dangerous operation if workspace is loading 805 Launcher.addDumpLog(TAG, " - workspace loading, skip", true); 806 return -1; 807 } 808 809 int index = getPageIndexForScreenId(EXTRA_EMPTY_SCREEN_ID); 810 CellLayout cl = mWorkspaceScreens.get(EXTRA_EMPTY_SCREEN_ID); 811 mWorkspaceScreens.remove(EXTRA_EMPTY_SCREEN_ID); 812 mScreenOrder.remove(EXTRA_EMPTY_SCREEN_ID); 813 814 long newId = LauncherAppState.getLauncherProvider().generateNewScreenId(); 815 mWorkspaceScreens.put(newId, cl); 816 mScreenOrder.add(newId); 817 818 // Update the page indicator marker 819 if (getPageIndicator() != null) { 820 getPageIndicator().updateMarker(index, getPageIndicatorMarker(index)); 821 } 822 823 // Update the model for the new screen 824 mLauncher.getModel().updateWorkspaceScreenOrder(mLauncher, mScreenOrder); 825 826 return newId; 827 } 828 829 public CellLayout getScreenWithId(long screenId) { 830 CellLayout layout = mWorkspaceScreens.get(screenId); 831 return layout; 832 } 833 834 public long getIdForScreen(CellLayout layout) { 835 int index = mWorkspaceScreens.indexOfValue(layout); 836 if (index != -1) { 837 return mWorkspaceScreens.keyAt(index); 838 } 839 return -1; 840 } 841 842 public int getPageIndexForScreenId(long screenId) { 843 return indexOfChild(mWorkspaceScreens.get(screenId)); 844 } 845 846 public long getScreenIdForPageIndex(int index) { 847 if (0 <= index && index < mScreenOrder.size()) { 848 return mScreenOrder.get(index); 849 } 850 return -1; 851 } 852 853 public ArrayList<Long> getScreenOrder() { 854 return mScreenOrder; 855 } 856 857 public void stripEmptyScreens() { 858 if (mLauncher.isWorkspaceLoading()) { 859 // Don't strip empty screens if the workspace is still loading. 860 // This is dangerous and can result in data loss. 861 Launcher.addDumpLog(TAG, " - workspace loading, skip", true); 862 return; 863 } 864 865 if (isPageMoving()) { 866 mStripScreensOnPageStopMoving = true; 867 return; 868 } 869 870 int currentPage = getNextPage(); 871 ArrayList<Long> removeScreens = new ArrayList<Long>(); 872 int total = mWorkspaceScreens.size(); 873 for (int i = 0; i < total; i++) { 874 long id = mWorkspaceScreens.keyAt(i); 875 CellLayout cl = mWorkspaceScreens.valueAt(i); 876 if (id >= 0 && cl.getShortcutsAndWidgets().getChildCount() == 0) { 877 removeScreens.add(id); 878 } 879 } 880 881 LauncherAccessibilityDelegate delegate = 882 LauncherAppState.getInstance().getAccessibilityDelegate(); 883 884 // We enforce at least one page to add new items to. In the case that we remove the last 885 // such screen, we convert the last screen to the empty screen 886 int minScreens = 1 + numCustomPages(); 887 888 int pageShift = 0; 889 for (Long id: removeScreens) { 890 CellLayout cl = mWorkspaceScreens.get(id); 891 mWorkspaceScreens.remove(id); 892 mScreenOrder.remove(id); 893 894 if (getChildCount() > minScreens) { 895 if (indexOfChild(cl) < currentPage) { 896 pageShift++; 897 } 898 899 if (delegate != null && delegate.isInAccessibleDrag()) { 900 cl.enableAccessibleDrag(false, CellLayout.WORKSPACE_ACCESSIBILITY_DRAG); 901 } 902 903 removeView(cl); 904 } else { 905 // if this is the last non-custom content screen, convert it to the empty screen 906 mRemoveEmptyScreenRunnable = null; 907 mWorkspaceScreens.put(EXTRA_EMPTY_SCREEN_ID, cl); 908 mScreenOrder.add(EXTRA_EMPTY_SCREEN_ID); 909 } 910 } 911 912 if (!removeScreens.isEmpty()) { 913 // Update the model if we have changed any screens 914 mLauncher.getModel().updateWorkspaceScreenOrder(mLauncher, mScreenOrder); 915 } 916 917 if (pageShift >= 0) { 918 setCurrentPage(currentPage - pageShift); 919 } 920 } 921 922 // See implementation for parameter definition. 923 void addInScreen(View child, long container, long screenId, 924 int x, int y, int spanX, int spanY) { 925 addInScreen(child, container, screenId, x, y, spanX, spanY, false, false); 926 } 927 928 // At bind time, we use the rank (screenId) to compute x and y for hotseat items. 929 // See implementation for parameter definition. 930 void addInScreenFromBind(View child, long container, long screenId, int x, int y, 931 int spanX, int spanY) { 932 addInScreen(child, container, screenId, x, y, spanX, spanY, false, true); 933 } 934 935 // See implementation for parameter definition. 936 void addInScreen(View child, long container, long screenId, int x, int y, int spanX, int spanY, 937 boolean insert) { 938 addInScreen(child, container, screenId, x, y, spanX, spanY, insert, false); 939 } 940 941 /** 942 * Adds the specified child in the specified screen. The position and dimension of 943 * the child are defined by x, y, spanX and spanY. 944 * 945 * @param child The child to add in one of the workspace's screens. 946 * @param screenId The screen in which to add the child. 947 * @param x The X position of the child in the screen's grid. 948 * @param y The Y position of the child in the screen's grid. 949 * @param spanX The number of cells spanned horizontally by the child. 950 * @param spanY The number of cells spanned vertically by the child. 951 * @param insert When true, the child is inserted at the beginning of the children list. 952 * @param computeXYFromRank When true, we use the rank (stored in screenId) to compute 953 * the x and y position in which to place hotseat items. Otherwise 954 * we use the x and y position to compute the rank. 955 */ 956 void addInScreen(View child, long container, long screenId, int x, int y, int spanX, int spanY, 957 boolean insert, boolean computeXYFromRank) { 958 if (container == LauncherSettings.Favorites.CONTAINER_DESKTOP) { 959 if (getScreenWithId(screenId) == null) { 960 Log.e(TAG, "Skipping child, screenId " + screenId + " not found"); 961 // DEBUGGING - Print out the stack trace to see where we are adding from 962 new Throwable().printStackTrace(); 963 return; 964 } 965 } 966 if (screenId == EXTRA_EMPTY_SCREEN_ID) { 967 // This should never happen 968 throw new RuntimeException("Screen id should not be EXTRA_EMPTY_SCREEN_ID"); 969 } 970 971 final CellLayout layout; 972 if (container == LauncherSettings.Favorites.CONTAINER_HOTSEAT) { 973 layout = mLauncher.getHotseat().getLayout(); 974 child.setOnKeyListener(new HotseatIconKeyEventListener()); 975 976 // Hide folder title in the hotseat 977 if (child instanceof FolderIcon) { 978 ((FolderIcon) child).setTextVisible(false); 979 } 980 981 if (computeXYFromRank) { 982 x = mLauncher.getHotseat().getCellXFromOrder((int) screenId); 983 y = mLauncher.getHotseat().getCellYFromOrder((int) screenId); 984 } else { 985 screenId = mLauncher.getHotseat().getOrderInHotseat(x, y); 986 } 987 } else { 988 // Show folder title if not in the hotseat 989 if (child instanceof FolderIcon) { 990 ((FolderIcon) child).setTextVisible(true); 991 } 992 layout = getScreenWithId(screenId); 993 child.setOnKeyListener(new IconKeyEventListener()); 994 } 995 996 ViewGroup.LayoutParams genericLp = child.getLayoutParams(); 997 CellLayout.LayoutParams lp; 998 if (genericLp == null || !(genericLp instanceof CellLayout.LayoutParams)) { 999 lp = new CellLayout.LayoutParams(x, y, spanX, spanY); 1000 } else { 1001 lp = (CellLayout.LayoutParams) genericLp; 1002 lp.cellX = x; 1003 lp.cellY = y; 1004 lp.cellHSpan = spanX; 1005 lp.cellVSpan = spanY; 1006 } 1007 1008 if (spanX < 0 && spanY < 0) { 1009 lp.isLockedToGrid = false; 1010 } 1011 1012 // Get the canonical child id to uniquely represent this view in this screen 1013 ItemInfo info = (ItemInfo) child.getTag(); 1014 int childId = mLauncher.getViewIdForItem(info); 1015 1016 boolean markCellsAsOccupied = !(child instanceof Folder); 1017 if (!layout.addViewToCellLayout(child, insert ? 0 : -1, childId, lp, markCellsAsOccupied)) { 1018 // TODO: This branch occurs when the workspace is adding views 1019 // outside of the defined grid 1020 // maybe we should be deleting these items from the LauncherModel? 1021 Launcher.addDumpLog(TAG, "Failed to add to item at (" + lp.cellX + "," + lp.cellY + ") to CellLayout", true); 1022 } 1023 1024 if (!(child instanceof Folder)) { 1025 child.setHapticFeedbackEnabled(false); 1026 child.setOnLongClickListener(mLongClickListener); 1027 } 1028 if (child instanceof DropTarget) { 1029 mDragController.addDropTarget((DropTarget) child); 1030 } 1031 } 1032 1033 /** 1034 * Called directly from a CellLayout (not by the framework), after we've been added as a 1035 * listener via setOnInterceptTouchEventListener(). This allows us to tell the CellLayout 1036 * that it should intercept touch events, which is not something that is normally supported. 1037 */ 1038 @SuppressLint("ClickableViewAccessibility") 1039 @Override 1040 public boolean onTouch(View v, MotionEvent event) { 1041 return (workspaceInModalState() || !isFinishedSwitchingState()) 1042 || (!workspaceInModalState() && indexOfChild(v) != mCurrentPage); 1043 } 1044 1045 public boolean isSwitchingState() { 1046 return mIsSwitchingState; 1047 } 1048 1049 /** This differs from isSwitchingState in that we take into account how far the transition 1050 * has completed. */ 1051 public boolean isFinishedSwitchingState() { 1052 return !mIsSwitchingState || (mTransitionProgress > 0.5f); 1053 } 1054 1055 protected void onWindowVisibilityChanged (int visibility) { 1056 mLauncher.onWindowVisibilityChanged(visibility); 1057 } 1058 1059 @Override 1060 public boolean dispatchUnhandledMove(View focused, int direction) { 1061 if (workspaceInModalState() || !isFinishedSwitchingState()) { 1062 // when the home screens are shrunken, shouldn't allow side-scrolling 1063 return false; 1064 } 1065 return super.dispatchUnhandledMove(focused, direction); 1066 } 1067 1068 @Override 1069 public boolean onInterceptTouchEvent(MotionEvent ev) { 1070 switch (ev.getAction() & MotionEvent.ACTION_MASK) { 1071 case MotionEvent.ACTION_DOWN: 1072 mXDown = ev.getX(); 1073 mYDown = ev.getY(); 1074 mTouchDownTime = System.currentTimeMillis(); 1075 break; 1076 case MotionEvent.ACTION_POINTER_UP: 1077 case MotionEvent.ACTION_UP: 1078 if (mTouchState == TOUCH_STATE_REST) { 1079 final CellLayout currentPage = (CellLayout) getChildAt(mCurrentPage); 1080 if (currentPage != null) { 1081 onWallpaperTap(ev); 1082 } 1083 } 1084 } 1085 return super.onInterceptTouchEvent(ev); 1086 } 1087 1088 @Override 1089 public boolean onGenericMotionEvent(MotionEvent event) { 1090 // Ignore pointer scroll events if the custom content doesn't allow scrolling. 1091 if ((getScreenIdForPageIndex(getCurrentPage()) == CUSTOM_CONTENT_SCREEN_ID) 1092 && (mCustomContentCallbacks != null) 1093 && !mCustomContentCallbacks.isScrollingAllowed()) { 1094 return false; 1095 } 1096 return super.onGenericMotionEvent(event); 1097 } 1098 1099 protected void reinflateWidgetsIfNecessary() { 1100 final int clCount = getChildCount(); 1101 for (int i = 0; i < clCount; i++) { 1102 CellLayout cl = (CellLayout) getChildAt(i); 1103 ShortcutAndWidgetContainer swc = cl.getShortcutsAndWidgets(); 1104 final int itemCount = swc.getChildCount(); 1105 for (int j = 0; j < itemCount; j++) { 1106 View v = swc.getChildAt(j); 1107 1108 if (v != null && v.getTag() instanceof LauncherAppWidgetInfo) { 1109 LauncherAppWidgetInfo info = (LauncherAppWidgetInfo) v.getTag(); 1110 LauncherAppWidgetHostView lahv = (LauncherAppWidgetHostView) info.hostView; 1111 if (lahv != null && lahv.isReinflateRequired()) { 1112 mLauncher.removeAppWidget(info); 1113 // Remove the current widget which is inflated with the wrong orientation 1114 cl.removeView(lahv); 1115 mLauncher.bindAppWidget(info); 1116 } 1117 } 1118 } 1119 } 1120 } 1121 1122 @Override 1123 protected void determineScrollingStart(MotionEvent ev) { 1124 if (!isFinishedSwitchingState()) return; 1125 1126 float deltaX = ev.getX() - mXDown; 1127 float absDeltaX = Math.abs(deltaX); 1128 float absDeltaY = Math.abs(ev.getY() - mYDown); 1129 1130 if (Float.compare(absDeltaX, 0f) == 0) return; 1131 1132 float slope = absDeltaY / absDeltaX; 1133 float theta = (float) Math.atan(slope); 1134 1135 if (absDeltaX > mTouchSlop || absDeltaY > mTouchSlop) { 1136 cancelCurrentPageLongPress(); 1137 } 1138 1139 boolean passRightSwipesToCustomContent = 1140 (mTouchDownTime - mCustomContentShowTime) > CUSTOM_CONTENT_GESTURE_DELAY; 1141 1142 boolean swipeInIgnoreDirection = mIsRtl ? deltaX < 0 : deltaX > 0; 1143 boolean onCustomContentScreen = 1144 getScreenIdForPageIndex(getCurrentPage()) == CUSTOM_CONTENT_SCREEN_ID; 1145 if (swipeInIgnoreDirection && onCustomContentScreen && passRightSwipesToCustomContent) { 1146 // Pass swipes to the right to the custom content page. 1147 return; 1148 } 1149 1150 if (onCustomContentScreen && (mCustomContentCallbacks != null) 1151 && !mCustomContentCallbacks.isScrollingAllowed()) { 1152 // Don't allow workspace scrolling if the current custom content screen doesn't allow 1153 // scrolling. 1154 return; 1155 } 1156 1157 if (theta > MAX_SWIPE_ANGLE) { 1158 // Above MAX_SWIPE_ANGLE, we don't want to ever start scrolling the workspace 1159 return; 1160 } else if (theta > START_DAMPING_TOUCH_SLOP_ANGLE) { 1161 // Above START_DAMPING_TOUCH_SLOP_ANGLE and below MAX_SWIPE_ANGLE, we want to 1162 // increase the touch slop to make it harder to begin scrolling the workspace. This 1163 // results in vertically scrolling widgets to more easily. The higher the angle, the 1164 // more we increase touch slop. 1165 theta -= START_DAMPING_TOUCH_SLOP_ANGLE; 1166 float extraRatio = (float) 1167 Math.sqrt((theta / (MAX_SWIPE_ANGLE - START_DAMPING_TOUCH_SLOP_ANGLE))); 1168 super.determineScrollingStart(ev, 1 + TOUCH_SLOP_DAMPING_FACTOR * extraRatio); 1169 } else { 1170 // Below START_DAMPING_TOUCH_SLOP_ANGLE, we don't do anything special 1171 super.determineScrollingStart(ev); 1172 } 1173 } 1174 1175 protected void onPageBeginMoving() { 1176 super.onPageBeginMoving(); 1177 1178 if (isHardwareAccelerated()) { 1179 updateChildrenLayersEnabled(false); 1180 } else { 1181 if (mNextPage != INVALID_PAGE) { 1182 // we're snapping to a particular screen 1183 enableChildrenCache(mCurrentPage, mNextPage); 1184 } else { 1185 // this is when user is actively dragging a particular screen, they might 1186 // swipe it either left or right (but we won't advance by more than one screen) 1187 enableChildrenCache(mCurrentPage - 1, mCurrentPage + 1); 1188 } 1189 } 1190 } 1191 1192 protected void onPageEndMoving() { 1193 super.onPageEndMoving(); 1194 1195 if (isHardwareAccelerated()) { 1196 updateChildrenLayersEnabled(false); 1197 } else { 1198 clearChildrenCache(); 1199 } 1200 1201 if (mDragController.isDragging()) { 1202 if (workspaceInModalState()) { 1203 // If we are in springloaded mode, then force an event to check if the current touch 1204 // is under a new page (to scroll to) 1205 mDragController.forceTouchMove(); 1206 } 1207 } 1208 1209 if (mDelayedResizeRunnable != null) { 1210 mDelayedResizeRunnable.run(); 1211 mDelayedResizeRunnable = null; 1212 } 1213 1214 if (mDelayedSnapToPageRunnable != null) { 1215 mDelayedSnapToPageRunnable.run(); 1216 mDelayedSnapToPageRunnable = null; 1217 } 1218 if (mStripScreensOnPageStopMoving) { 1219 stripEmptyScreens(); 1220 mStripScreensOnPageStopMoving = false; 1221 } 1222 1223 if (mShouldSendPageSettled) { 1224 mLauncherOverlay.onScrollSettled(); 1225 mShouldSendPageSettled = false; 1226 } 1227 } 1228 1229 protected void onScrollInteractionBegin() { 1230 super.onScrollInteractionEnd(); 1231 mScrollInteractionBegan = true; 1232 } 1233 1234 protected void onScrollInteractionEnd() { 1235 super.onScrollInteractionEnd(); 1236 mScrollInteractionBegan = false; 1237 if (mStartedSendingScrollEvents) { 1238 mStartedSendingScrollEvents = false; 1239 mLauncherOverlay.onScrollInteractionEnd(); 1240 } 1241 } 1242 1243 public void setLauncherOverlay(LauncherOverlay overlay) { 1244 mLauncherOverlay = overlay; 1245 } 1246 1247 @Override 1248 protected void overScroll(float amount) { 1249 boolean shouldOverScroll = (amount <= 0 && (!hasCustomContent() || mIsRtl)) || 1250 (amount >= 0 && (!hasCustomContent() || !mIsRtl)); 1251 1252 boolean shouldScrollOverlay = mLauncherOverlay != null && 1253 ((amount <= 0 && !mIsRtl) || (amount >= 0 && mIsRtl)); 1254 1255 boolean shouldZeroOverlay = mLauncherOverlay != null && mLastOverlaySroll != 0 && 1256 ((amount >= 0 && !mIsRtl) || (amount <= 0 && mIsRtl)); 1257 1258 if (shouldScrollOverlay) { 1259 if (!mStartedSendingScrollEvents && mScrollInteractionBegan) { 1260 mStartedSendingScrollEvents = true; 1261 mLauncherOverlay.onScrollInteractionBegin(); 1262 mShouldSendPageSettled = true; 1263 } 1264 int screenSize = getViewportWidth(); 1265 float f = (amount / screenSize); 1266 1267 int progress = (int) Math.abs((f * 100)); 1268 1269 mLastOverlaySroll = progress; 1270 mLauncherOverlay.onScrollChange(progress, mIsRtl); 1271 } else if (shouldOverScroll) { 1272 dampedOverScroll(amount); 1273 } 1274 1275 if (shouldZeroOverlay) { 1276 mLauncherOverlay.onScrollChange(0, mIsRtl); 1277 } 1278 } 1279 1280 @Override 1281 protected void getEdgeVerticalPostion(int[] pos) { 1282 View child = getChildAt(getPageCount() - 1); 1283 pos[0] = child.getTop(); 1284 pos[1] = child.getBottom(); 1285 } 1286 1287 @Override 1288 protected void notifyPageSwitchListener() { 1289 super.notifyPageSwitchListener(); 1290 1291 if (hasCustomContent() && getNextPage() == 0 && !mCustomContentShowing) { 1292 mCustomContentShowing = true; 1293 if (mCustomContentCallbacks != null) { 1294 mCustomContentCallbacks.onShow(false); 1295 mCustomContentShowTime = System.currentTimeMillis(); 1296 } 1297 } else if (hasCustomContent() && getNextPage() != 0 && mCustomContentShowing) { 1298 mCustomContentShowing = false; 1299 if (mCustomContentCallbacks != null) { 1300 mCustomContentCallbacks.onHide(); 1301 } 1302 } 1303 } 1304 1305 protected CustomContentCallbacks getCustomContentCallbacks() { 1306 return mCustomContentCallbacks; 1307 } 1308 1309 protected void setWallpaperDimension() { 1310 new AsyncTask<Void, Void, Void>() { 1311 public Void doInBackground(Void ... args) { 1312 String spKey = LauncherFiles.WALLPAPER_CROP_PREFERENCES_KEY; 1313 SharedPreferences sp = 1314 mLauncher.getSharedPreferences(spKey, Context.MODE_MULTI_PROCESS); 1315 WallpaperUtils.suggestWallpaperDimension(mLauncher.getResources(), 1316 sp, mLauncher.getWindowManager(), mWallpaperManager, 1317 mLauncher.overrideWallpaperDimensions()); 1318 return null; 1319 } 1320 }.executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR, (Void) null); 1321 } 1322 1323 protected void snapToPage(int whichPage, Runnable r) { 1324 snapToPage(whichPage, SLOW_PAGE_SNAP_ANIMATION_DURATION, r); 1325 } 1326 1327 protected void snapToPage(int whichPage, int duration, Runnable r) { 1328 if (mDelayedSnapToPageRunnable != null) { 1329 mDelayedSnapToPageRunnable.run(); 1330 } 1331 mDelayedSnapToPageRunnable = r; 1332 snapToPage(whichPage, duration); 1333 } 1334 1335 public void snapToScreenId(long screenId) { 1336 snapToScreenId(screenId, null); 1337 } 1338 1339 protected void snapToScreenId(long screenId, Runnable r) { 1340 snapToPage(getPageIndexForScreenId(screenId), r); 1341 } 1342 1343 class WallpaperOffsetInterpolator implements Choreographer.FrameCallback { 1344 float mFinalOffset = 0.0f; 1345 float mCurrentOffset = 0.5f; // to force an initial update 1346 boolean mWaitingForUpdate; 1347 Choreographer mChoreographer; 1348 Interpolator mInterpolator; 1349 boolean mAnimating; 1350 long mAnimationStartTime; 1351 float mAnimationStartOffset; 1352 private final int ANIMATION_DURATION = 250; 1353 // Don't use all the wallpaper for parallax until you have at least this many pages 1354 private final int MIN_PARALLAX_PAGE_SPAN = 3; 1355 int mNumScreens; 1356 1357 public WallpaperOffsetInterpolator() { 1358 mChoreographer = Choreographer.getInstance(); 1359 mInterpolator = new DecelerateInterpolator(1.5f); 1360 } 1361 1362 @Override 1363 public void doFrame(long frameTimeNanos) { 1364 updateOffset(false); 1365 } 1366 1367 private void updateOffset(boolean force) { 1368 if (mWaitingForUpdate || force) { 1369 mWaitingForUpdate = false; 1370 if (computeScrollOffset() && mWindowToken != null) { 1371 try { 1372 mWallpaperManager.setWallpaperOffsets(mWindowToken, 1373 mWallpaperOffset.getCurrX(), 0.5f); 1374 setWallpaperOffsetSteps(); 1375 } catch (IllegalArgumentException e) { 1376 Log.e(TAG, "Error updating wallpaper offset: " + e); 1377 } 1378 } 1379 } 1380 } 1381 1382 public boolean computeScrollOffset() { 1383 final float oldOffset = mCurrentOffset; 1384 if (mAnimating) { 1385 long durationSinceAnimation = System.currentTimeMillis() - mAnimationStartTime; 1386 float t0 = durationSinceAnimation / (float) ANIMATION_DURATION; 1387 float t1 = mInterpolator.getInterpolation(t0); 1388 mCurrentOffset = mAnimationStartOffset + 1389 (mFinalOffset - mAnimationStartOffset) * t1; 1390 mAnimating = durationSinceAnimation < ANIMATION_DURATION; 1391 } else { 1392 mCurrentOffset = mFinalOffset; 1393 } 1394 1395 if (Math.abs(mCurrentOffset - mFinalOffset) > 0.0000001f) { 1396 scheduleUpdate(); 1397 } 1398 if (Math.abs(oldOffset - mCurrentOffset) > 0.0000001f) { 1399 return true; 1400 } 1401 return false; 1402 } 1403 1404 private float wallpaperOffsetForCurrentScroll() { 1405 // TODO: do different behavior if it's a live wallpaper? 1406 // Don't use up all the wallpaper parallax until you have at least 1407 // MIN_PARALLAX_PAGE_SPAN pages 1408 int numScrollingPages = getNumScreensExcludingEmptyAndCustom(); 1409 int parallaxPageSpan; 1410 if (mWallpaperIsLiveWallpaper) { 1411 parallaxPageSpan = numScrollingPages - 1; 1412 } else { 1413 parallaxPageSpan = Math.max(MIN_PARALLAX_PAGE_SPAN, numScrollingPages - 1); 1414 } 1415 mNumPagesForWallpaperParallax = parallaxPageSpan; 1416 1417 if (getChildCount() <= 1) { 1418 if (mIsRtl) { 1419 return 1 - 1.0f/mNumPagesForWallpaperParallax; 1420 } 1421 return 0; 1422 } 1423 1424 // Exclude the leftmost page 1425 int emptyExtraPages = numEmptyScreensToIgnore(); 1426 int firstIndex = numCustomPages(); 1427 // Exclude the last extra empty screen (if we have > MIN_PARALLAX_PAGE_SPAN pages) 1428 int lastIndex = getChildCount() - 1 - emptyExtraPages; 1429 if (mIsRtl) { 1430 int temp = firstIndex; 1431 firstIndex = lastIndex; 1432 lastIndex = temp; 1433 } 1434 1435 int firstPageScrollX = getScrollForPage(firstIndex); 1436 int scrollRange = getScrollForPage(lastIndex) - firstPageScrollX; 1437 if (scrollRange == 0) { 1438 return 0; 1439 } else { 1440 // Sometimes the left parameter of the pages is animated during a layout transition; 1441 // this parameter offsets it to keep the wallpaper from animating as well 1442 int adjustedScroll = 1443 getScrollX() - firstPageScrollX - getLayoutTransitionOffsetForPage(0); 1444 float offset = Math.min(1, adjustedScroll / (float) scrollRange); 1445 offset = Math.max(0, offset); 1446 1447 // On RTL devices, push the wallpaper offset to the right if we don't have enough 1448 // pages (ie if numScrollingPages < MIN_PARALLAX_PAGE_SPAN) 1449 if (!mWallpaperIsLiveWallpaper && numScrollingPages < MIN_PARALLAX_PAGE_SPAN 1450 && mIsRtl) { 1451 return offset * (parallaxPageSpan - numScrollingPages + 1) / parallaxPageSpan; 1452 } 1453 return offset * (numScrollingPages - 1) / parallaxPageSpan; 1454 } 1455 } 1456 1457 private int numEmptyScreensToIgnore() { 1458 int numScrollingPages = getChildCount() - numCustomPages(); 1459 if (numScrollingPages >= MIN_PARALLAX_PAGE_SPAN && hasExtraEmptyScreen()) { 1460 return 1; 1461 } else { 1462 return 0; 1463 } 1464 } 1465 1466 private int getNumScreensExcludingEmptyAndCustom() { 1467 int numScrollingPages = getChildCount() - numEmptyScreensToIgnore() - numCustomPages(); 1468 return numScrollingPages; 1469 } 1470 1471 public void syncWithScroll() { 1472 float offset = wallpaperOffsetForCurrentScroll(); 1473 mWallpaperOffset.setFinalX(offset); 1474 updateOffset(true); 1475 } 1476 1477 public float getCurrX() { 1478 return mCurrentOffset; 1479 } 1480 1481 public float getFinalX() { 1482 return mFinalOffset; 1483 } 1484 1485 private void animateToFinal() { 1486 mAnimating = true; 1487 mAnimationStartOffset = mCurrentOffset; 1488 mAnimationStartTime = System.currentTimeMillis(); 1489 } 1490 1491 private void setWallpaperOffsetSteps() { 1492 // Set wallpaper offset steps (1 / (number of screens - 1)) 1493 float xOffset = 1.0f / mNumPagesForWallpaperParallax; 1494 if (xOffset != mLastSetWallpaperOffsetSteps) { 1495 mWallpaperManager.setWallpaperOffsetSteps(xOffset, 1.0f); 1496 mLastSetWallpaperOffsetSteps = xOffset; 1497 } 1498 } 1499 1500 public void setFinalX(float x) { 1501 scheduleUpdate(); 1502 mFinalOffset = Math.max(0f, Math.min(x, 1.0f)); 1503 if (getNumScreensExcludingEmptyAndCustom() != mNumScreens) { 1504 if (mNumScreens > 0) { 1505 // Don't animate if we're going from 0 screens 1506 animateToFinal(); 1507 } 1508 mNumScreens = getNumScreensExcludingEmptyAndCustom(); 1509 } 1510 } 1511 1512 private void scheduleUpdate() { 1513 if (!mWaitingForUpdate) { 1514 mChoreographer.postFrameCallback(this); 1515 mWaitingForUpdate = true; 1516 } 1517 } 1518 1519 public void jumpToFinal() { 1520 mCurrentOffset = mFinalOffset; 1521 } 1522 } 1523 1524 @Override 1525 public void computeScroll() { 1526 super.computeScroll(); 1527 mWallpaperOffset.syncWithScroll(); 1528 } 1529 1530 @Override 1531 public void announceForAccessibility(CharSequence text) { 1532 // Don't announce if apps is on top of us. 1533 if (!mLauncher.isAppsViewVisible()) { 1534 super.announceForAccessibility(text); 1535 } 1536 } 1537 1538 public void showOutlinesTemporarily() { 1539 if (!mIsPageMoving && !isTouchActive()) { 1540 snapToPage(mCurrentPage); 1541 } 1542 } 1543 1544 float backgroundAlphaInterpolator(float r) { 1545 float pivotA = 0.1f; 1546 float pivotB = 0.4f; 1547 if (r < pivotA) { 1548 return 0; 1549 } else if (r > pivotB) { 1550 return 1.0f; 1551 } else { 1552 return (r - pivotA)/(pivotB - pivotA); 1553 } 1554 } 1555 1556 private void updatePageAlphaValues(int screenCenter) { 1557 if (mWorkspaceFadeInAdjacentScreens && 1558 !workspaceInModalState() && 1559 !mIsSwitchingState) { 1560 for (int i = numCustomPages(); i < getChildCount(); i++) { 1561 CellLayout child = (CellLayout) getChildAt(i); 1562 if (child != null) { 1563 float scrollProgress = getScrollProgress(screenCenter, child, i); 1564 float alpha = 1 - Math.abs(scrollProgress); 1565 child.getShortcutsAndWidgets().setAlpha(alpha); 1566 } 1567 } 1568 } 1569 } 1570 1571 @TargetApi(Build.VERSION_CODES.LOLLIPOP) 1572 @Override 1573 public void enableAccessibleDrag(boolean enable) { 1574 for (int i = 0; i < getChildCount(); i++) { 1575 CellLayout child = (CellLayout) getChildAt(i); 1576 child.enableAccessibleDrag(enable, CellLayout.WORKSPACE_ACCESSIBILITY_DRAG); 1577 } 1578 1579 if (enable) { 1580 // We need to allow our individual children to become click handlers in this case 1581 setOnClickListener(null); 1582 } else { 1583 // Reset our click listener 1584 setOnClickListener(mLauncher); 1585 } 1586 mLauncher.getSearchDropTargetBar().enableAccessibleDrag(enable); 1587 mLauncher.getHotseat().getLayout() 1588 .enableAccessibleDrag(enable, CellLayout.WORKSPACE_ACCESSIBILITY_DRAG); 1589 } 1590 1591 public boolean hasCustomContent() { 1592 return (mScreenOrder.size() > 0 && mScreenOrder.get(0) == CUSTOM_CONTENT_SCREEN_ID); 1593 } 1594 1595 public int numCustomPages() { 1596 return hasCustomContent() ? 1 : 0; 1597 } 1598 1599 public boolean isOnOrMovingToCustomContent() { 1600 return hasCustomContent() && getNextPage() == 0; 1601 } 1602 1603 private void updateStateForCustomContent(int screenCenter) { 1604 float translationX = 0; 1605 float progress = 0; 1606 if (hasCustomContent()) { 1607 int index = mScreenOrder.indexOf(CUSTOM_CONTENT_SCREEN_ID); 1608 1609 int scrollDelta = getScrollX() - getScrollForPage(index) - 1610 getLayoutTransitionOffsetForPage(index); 1611 float scrollRange = getScrollForPage(index + 1) - getScrollForPage(index); 1612 translationX = scrollRange - scrollDelta; 1613 progress = (scrollRange - scrollDelta) / scrollRange; 1614 1615 if (mIsRtl) { 1616 translationX = Math.min(0, translationX); 1617 } else { 1618 translationX = Math.max(0, translationX); 1619 } 1620 progress = Math.max(0, progress); 1621 } 1622 1623 if (Float.compare(progress, mLastCustomContentScrollProgress) == 0) return; 1624 1625 CellLayout cc = mWorkspaceScreens.get(CUSTOM_CONTENT_SCREEN_ID); 1626 if (progress > 0 && cc.getVisibility() != VISIBLE && !workspaceInModalState()) { 1627 cc.setVisibility(VISIBLE); 1628 } 1629 1630 mLastCustomContentScrollProgress = progress; 1631 1632 // We should only update the drag layer background alpha if we are not in all apps or the 1633 // widgets tray 1634 if (mState == State.NORMAL) { 1635 mLauncher.getDragLayer().setBackgroundAlpha(progress == 1 ? 0 : progress * 0.8f); 1636 } 1637 1638 if (mLauncher.getHotseat() != null) { 1639 mLauncher.getHotseat().setTranslationX(translationX); 1640 } 1641 1642 if (getPageIndicator() != null) { 1643 getPageIndicator().setTranslationX(translationX); 1644 } 1645 1646 if (mCustomContentCallbacks != null) { 1647 mCustomContentCallbacks.onScrollProgressChanged(progress); 1648 } 1649 } 1650 1651 @Override 1652 protected OnClickListener getPageIndicatorClickListener() { 1653 AccessibilityManager am = (AccessibilityManager) 1654 getContext().getSystemService(Context.ACCESSIBILITY_SERVICE); 1655 if (!am.isTouchExplorationEnabled()) { 1656 return null; 1657 } 1658 OnClickListener listener = new OnClickListener() { 1659 @Override 1660 public void onClick(View arg0) { 1661 mLauncher.showOverviewMode(true); 1662 } 1663 }; 1664 return listener; 1665 } 1666 1667 @Override 1668 protected void screenScrolled(int screenCenter) { 1669 updatePageAlphaValues(screenCenter); 1670 updateStateForCustomContent(screenCenter); 1671 enableHwLayersOnVisiblePages(); 1672 } 1673 1674 protected void onAttachedToWindow() { 1675 super.onAttachedToWindow(); 1676 mWindowToken = getWindowToken(); 1677 computeScroll(); 1678 mDragController.setWindowToken(mWindowToken); 1679 } 1680 1681 protected void onDetachedFromWindow() { 1682 super.onDetachedFromWindow(); 1683 mWindowToken = null; 1684 } 1685 1686 protected void onResume() { 1687 if (getPageIndicator() != null) { 1688 // In case accessibility state has changed, we need to perform this on every 1689 // attach to window 1690 OnClickListener listener = getPageIndicatorClickListener(); 1691 if (listener != null) { 1692 getPageIndicator().setOnClickListener(listener); 1693 } 1694 } 1695 1696 // Update wallpaper dimensions if they were changed since last onResume 1697 // (we also always set the wallpaper dimensions in the constructor) 1698 if (LauncherAppState.getInstance().hasWallpaperChangedSinceLastCheck()) { 1699 setWallpaperDimension(); 1700 } 1701 mWallpaperIsLiveWallpaper = mWallpaperManager.getWallpaperInfo() != null; 1702 // Force the wallpaper offset steps to be set again, because another app might have changed 1703 // them 1704 mLastSetWallpaperOffsetSteps = 0f; 1705 } 1706 1707 @Override 1708 protected void onLayout(boolean changed, int left, int top, int right, int bottom) { 1709 if (mFirstLayout && mCurrentPage >= 0 && mCurrentPage < getChildCount()) { 1710 mWallpaperOffset.syncWithScroll(); 1711 mWallpaperOffset.jumpToFinal(); 1712 } 1713 super.onLayout(changed, left, top, right, bottom); 1714 } 1715 1716 @Override 1717 protected void onDraw(Canvas canvas) { 1718 super.onDraw(canvas); 1719 1720 // Call back to LauncherModel to finish binding after the first draw 1721 post(mBindPages); 1722 } 1723 1724 @Override 1725 protected boolean onRequestFocusInDescendants(int direction, Rect previouslyFocusedRect) { 1726 if (!mLauncher.isAppsViewVisible()) { 1727 final Folder openFolder = getOpenFolder(); 1728 if (openFolder != null) { 1729 return openFolder.requestFocus(direction, previouslyFocusedRect); 1730 } else { 1731 return super.onRequestFocusInDescendants(direction, previouslyFocusedRect); 1732 } 1733 } 1734 return false; 1735 } 1736 1737 @Override 1738 public int getDescendantFocusability() { 1739 if (workspaceInModalState()) { 1740 return ViewGroup.FOCUS_BLOCK_DESCENDANTS; 1741 } 1742 return super.getDescendantFocusability(); 1743 } 1744 1745 @Override 1746 public void addFocusables(ArrayList<View> views, int direction, int focusableMode) { 1747 if (!mLauncher.isAppsViewVisible()) { 1748 final Folder openFolder = getOpenFolder(); 1749 if (openFolder != null) { 1750 openFolder.addFocusables(views, direction); 1751 } else { 1752 super.addFocusables(views, direction, focusableMode); 1753 } 1754 } 1755 } 1756 1757 public boolean workspaceInModalState() { 1758 return mState != State.NORMAL; 1759 } 1760 1761 void enableChildrenCache(int fromPage, int toPage) { 1762 if (fromPage > toPage) { 1763 final int temp = fromPage; 1764 fromPage = toPage; 1765 toPage = temp; 1766 } 1767 1768 final int screenCount = getChildCount(); 1769 1770 fromPage = Math.max(fromPage, 0); 1771 toPage = Math.min(toPage, screenCount - 1); 1772 1773 for (int i = fromPage; i <= toPage; i++) { 1774 final CellLayout layout = (CellLayout) getChildAt(i); 1775 layout.setChildrenDrawnWithCacheEnabled(true); 1776 layout.setChildrenDrawingCacheEnabled(true); 1777 } 1778 } 1779 1780 void clearChildrenCache() { 1781 final int screenCount = getChildCount(); 1782 for (int i = 0; i < screenCount; i++) { 1783 final CellLayout layout = (CellLayout) getChildAt(i); 1784 layout.setChildrenDrawnWithCacheEnabled(false); 1785 // In software mode, we don't want the items to continue to be drawn into bitmaps 1786 if (!isHardwareAccelerated()) { 1787 layout.setChildrenDrawingCacheEnabled(false); 1788 } 1789 } 1790 } 1791 1792 @Thunk void updateChildrenLayersEnabled(boolean force) { 1793 boolean small = mState == State.OVERVIEW || mIsSwitchingState; 1794 boolean enableChildrenLayers = force || small || mAnimatingViewIntoPlace || isPageMoving(); 1795 1796 if (enableChildrenLayers != mChildrenLayersEnabled) { 1797 mChildrenLayersEnabled = enableChildrenLayers; 1798 if (mChildrenLayersEnabled) { 1799 enableHwLayersOnVisiblePages(); 1800 } else { 1801 for (int i = 0; i < getPageCount(); i++) { 1802 final CellLayout cl = (CellLayout) getChildAt(i); 1803 cl.enableHardwareLayer(false); 1804 } 1805 } 1806 } 1807 } 1808 1809 private void enableHwLayersOnVisiblePages() { 1810 if (mChildrenLayersEnabled) { 1811 final int screenCount = getChildCount(); 1812 getVisiblePages(mTempVisiblePagesRange); 1813 int leftScreen = mTempVisiblePagesRange[0]; 1814 int rightScreen = mTempVisiblePagesRange[1]; 1815 if (leftScreen == rightScreen) { 1816 // make sure we're caching at least two pages always 1817 if (rightScreen < screenCount - 1) { 1818 rightScreen++; 1819 } else if (leftScreen > 0) { 1820 leftScreen--; 1821 } 1822 } 1823 1824 final CellLayout customScreen = mWorkspaceScreens.get(CUSTOM_CONTENT_SCREEN_ID); 1825 for (int i = 0; i < screenCount; i++) { 1826 final CellLayout layout = (CellLayout) getPageAt(i); 1827 1828 // enable layers between left and right screen inclusive, except for the 1829 // customScreen, which may animate its content during transitions. 1830 boolean enableLayer = layout != customScreen && 1831 leftScreen <= i && i <= rightScreen && shouldDrawChild(layout); 1832 layout.enableHardwareLayer(enableLayer); 1833 } 1834 } 1835 } 1836 1837 public void buildPageHardwareLayers() { 1838 // force layers to be enabled just for the call to buildLayer 1839 updateChildrenLayersEnabled(true); 1840 if (getWindowToken() != null) { 1841 final int childCount = getChildCount(); 1842 for (int i = 0; i < childCount; i++) { 1843 CellLayout cl = (CellLayout) getChildAt(i); 1844 cl.buildHardwareLayer(); 1845 } 1846 } 1847 updateChildrenLayersEnabled(false); 1848 } 1849 1850 @Override 1851 protected void getVisiblePages(int[] range) { 1852 super.getVisiblePages(range); 1853 if (mState == State.OVERVIEW || mState == State.SPRING_LOADED) { 1854 // In overview mode, make sure that the two side pages are visible. 1855 range[0] = Math.min(range[0], Math.max(getCurrentPage() - 1, numCustomPages())); 1856 range[1] = Math.max(range[0], Math.min(getCurrentPage() + 1, getPageCount() - 1)); 1857 } 1858 } 1859 1860 protected void onWallpaperTap(MotionEvent ev) { 1861 final int[] position = mTempXY; 1862 getLocationOnScreen(position); 1863 1864 int pointerIndex = ev.getActionIndex(); 1865 position[0] += (int) ev.getX(pointerIndex); 1866 position[1] += (int) ev.getY(pointerIndex); 1867 1868 mWallpaperManager.sendWallpaperCommand(getWindowToken(), 1869 ev.getAction() == MotionEvent.ACTION_UP 1870 ? WallpaperManager.COMMAND_TAP : WallpaperManager.COMMAND_SECONDARY_TAP, 1871 position[0], position[1], 0, null); 1872 } 1873 1874 /* 1875 * 1876 * We call these methods (onDragStartedWithItemSpans/onDragStartedWithSize) whenever we 1877 * start a drag in Launcher, regardless of whether the drag has ever entered the Workspace 1878 * 1879 * These methods mark the appropriate pages as accepting drops (which alters their visual 1880 * appearance). 1881 * 1882 */ 1883 private static Rect getDrawableBounds(Drawable d) { 1884 Rect bounds = new Rect(); 1885 d.copyBounds(bounds); 1886 if (bounds.width() == 0 || bounds.height() == 0) { 1887 bounds.set(0, 0, d.getIntrinsicWidth(), d.getIntrinsicHeight()); 1888 } else { 1889 bounds.offsetTo(0, 0); 1890 } 1891 if (d instanceof PreloadIconDrawable) { 1892 int inset = -((PreloadIconDrawable) d).getOutset(); 1893 bounds.inset(inset, inset); 1894 } 1895 return bounds; 1896 } 1897 1898 public void onExternalDragStartedWithItem(View v) { 1899 // Compose a drag bitmap with the view scaled to the icon size 1900 DeviceProfile grid = mLauncher.getDeviceProfile(); 1901 int iconSize = grid.iconSizePx; 1902 int bmpWidth = v.getMeasuredWidth(); 1903 int bmpHeight = v.getMeasuredHeight(); 1904 1905 // If this is a text view, use its drawable instead 1906 if (v instanceof TextView) { 1907 Drawable d = getTextViewIcon((TextView) v); 1908 Rect bounds = getDrawableBounds(d); 1909 bmpWidth = bounds.width(); 1910 bmpHeight = bounds.height(); 1911 } 1912 1913 // Compose the bitmap to create the icon from 1914 Bitmap b = Bitmap.createBitmap(bmpWidth, bmpHeight, 1915 Bitmap.Config.ARGB_8888); 1916 mCanvas.setBitmap(b); 1917 drawDragView(v, mCanvas, 0); 1918 mCanvas.setBitmap(null); 1919 1920 // The outline is used to visualize where the item will land if dropped 1921 mDragOutline = createDragOutline(b, DRAG_BITMAP_PADDING, iconSize, iconSize, true); 1922 } 1923 1924 public void onDragStartedWithItem(PendingAddItemInfo info, Bitmap b, boolean clipAlpha) { 1925 int[] size = estimateItemSize(info, false); 1926 1927 // The outline is used to visualize where the item will land if dropped 1928 mDragOutline = createDragOutline(b, DRAG_BITMAP_PADDING, size[0], size[1], clipAlpha); 1929 } 1930 1931 public void exitWidgetResizeMode() { 1932 DragLayer dragLayer = mLauncher.getDragLayer(); 1933 dragLayer.clearAllResizeFrames(); 1934 } 1935 1936 @Override 1937 protected void getFreeScrollPageRange(int[] range) { 1938 getOverviewModePages(range); 1939 } 1940 1941 private void getOverviewModePages(int[] range) { 1942 int start = numCustomPages(); 1943 int end = getChildCount() - 1; 1944 1945 range[0] = Math.max(0, Math.min(start, getChildCount() - 1)); 1946 range[1] = Math.max(0, end); 1947 } 1948 1949 public void onStartReordering() { 1950 super.onStartReordering(); 1951 // Reordering handles its own animations, disable the automatic ones. 1952 disableLayoutTransitions(); 1953 } 1954 1955 public void onEndReordering() { 1956 super.onEndReordering(); 1957 1958 if (mLauncher.isWorkspaceLoading()) { 1959 // Invalid and dangerous operation if workspace is loading 1960 return; 1961 } 1962 1963 mScreenOrder.clear(); 1964 int count = getChildCount(); 1965 for (int i = 0; i < count; i++) { 1966 CellLayout cl = ((CellLayout) getChildAt(i)); 1967 mScreenOrder.add(getIdForScreen(cl)); 1968 } 1969 1970 mLauncher.getModel().updateWorkspaceScreenOrder(mLauncher, mScreenOrder); 1971 1972 // Re-enable auto layout transitions for page deletion. 1973 enableLayoutTransitions(); 1974 } 1975 1976 public boolean isInOverviewMode() { 1977 return mState == State.OVERVIEW; 1978 } 1979 1980 public void snapToPageFromOverView(int whichPage) { 1981 mStateTransitionAnimation.snapToPageFromOverView(whichPage); 1982 } 1983 1984 int getOverviewModeTranslationY() { 1985 DeviceProfile grid = mLauncher.getDeviceProfile(); 1986 Rect workspacePadding = grid.getWorkspacePadding(Utilities.isRtl(getResources())); 1987 int overviewButtonBarHeight = grid.getOverviewModeButtonBarHeight(); 1988 1989 int scaledHeight = (int) (mOverviewModeShrinkFactor * getNormalChildHeight()); 1990 int workspaceTop = mInsets.top + workspacePadding.top; 1991 int workspaceBottom = getViewportHeight() - mInsets.bottom - workspacePadding.bottom; 1992 int overviewTop = mInsets.top; 1993 int overviewBottom = getViewportHeight() - mInsets.bottom - overviewButtonBarHeight; 1994 int workspaceOffsetTopEdge = workspaceTop + ((workspaceBottom - workspaceTop) - scaledHeight) / 2; 1995 int overviewOffsetTopEdge = overviewTop + (overviewBottom - overviewTop - scaledHeight) / 2; 1996 return -workspaceOffsetTopEdge + overviewOffsetTopEdge; 1997 } 1998 1999 /** 2000 * Sets the current workspace {@link State}, returning an animation transitioning the workspace 2001 * to that new state. 2002 */ 2003 public Animator setStateWithAnimation(State toState, boolean animated, 2004 HashMap<View, Integer> layerViews) { 2005 // Create the animation to the new state 2006 Animator workspaceAnim = mStateTransitionAnimation.getAnimationToState(mState, 2007 toState, animated, layerViews); 2008 2009 // Update the current state 2010 mState = toState; 2011 updateAccessibilityFlags(); 2012 if (mState == State.OVERVIEW || mState == State.SPRING_LOADED) { 2013 // Redraw pages, as we might want to draw pages which were not visible. 2014 invalidate(); 2015 } 2016 2017 return workspaceAnim; 2018 } 2019 2020 State getState() { 2021 return mState; 2022 } 2023 2024 public void updateAccessibilityFlags() { 2025 if (Utilities.isLmpOrAbove()) { 2026 int total = getPageCount(); 2027 for (int i = numCustomPages(); i < total; i++) { 2028 updateAccessibilityFlags((CellLayout) getPageAt(i), i); 2029 } 2030 setImportantForAccessibility((mState == State.NORMAL || mState == State.OVERVIEW) 2031 ? IMPORTANT_FOR_ACCESSIBILITY_AUTO 2032 : IMPORTANT_FOR_ACCESSIBILITY_NO_HIDE_DESCENDANTS); 2033 } else { 2034 int accessible = mState == State.NORMAL ? 2035 IMPORTANT_FOR_ACCESSIBILITY_AUTO : 2036 IMPORTANT_FOR_ACCESSIBILITY_NO_HIDE_DESCENDANTS; 2037 setImportantForAccessibility(accessible); 2038 } 2039 } 2040 2041 private void updateAccessibilityFlags(CellLayout page, int pageNo) { 2042 if (mState == State.OVERVIEW) { 2043 page.setImportantForAccessibility(IMPORTANT_FOR_ACCESSIBILITY_YES); 2044 page.getShortcutsAndWidgets().setImportantForAccessibility( 2045 IMPORTANT_FOR_ACCESSIBILITY_NO_HIDE_DESCENDANTS); 2046 page.setContentDescription(getPageDescription(pageNo)); 2047 2048 if (mPagesAccessibilityDelegate == null) { 2049 mPagesAccessibilityDelegate = new OverviewScreenAccessibilityDelegate(this); 2050 } 2051 page.setAccessibilityDelegate(mPagesAccessibilityDelegate); 2052 } else { 2053 int accessible = mState == State.NORMAL ? 2054 IMPORTANT_FOR_ACCESSIBILITY_AUTO : 2055 IMPORTANT_FOR_ACCESSIBILITY_NO_HIDE_DESCENDANTS; 2056 page.setImportantForAccessibility(IMPORTANT_FOR_ACCESSIBILITY_NO); 2057 page.getShortcutsAndWidgets().setImportantForAccessibility(accessible); 2058 page.setContentDescription(null); 2059 page.setAccessibilityDelegate(null); 2060 } 2061 } 2062 2063 @Override 2064 public void onLauncherTransitionPrepare(Launcher l, boolean animated, boolean toWorkspace) { 2065 mIsSwitchingState = true; 2066 2067 // Invalidate here to ensure that the pages are rendered during the state change transition. 2068 invalidate(); 2069 2070 updateChildrenLayersEnabled(false); 2071 hideCustomContentIfNecessary(); 2072 } 2073 2074 @Override 2075 public void onLauncherTransitionStart(Launcher l, boolean animated, boolean toWorkspace) { 2076 } 2077 2078 @Override 2079 public void onLauncherTransitionStep(Launcher l, float t) { 2080 mTransitionProgress = t; 2081 } 2082 2083 @Override 2084 public void onLauncherTransitionEnd(Launcher l, boolean animated, boolean toWorkspace) { 2085 mIsSwitchingState = false; 2086 updateChildrenLayersEnabled(false); 2087 showCustomContentIfNecessary(); 2088 } 2089 2090 void updateCustomContentVisibility() { 2091 int visibility = mState == Workspace.State.NORMAL ? VISIBLE : INVISIBLE; 2092 if (hasCustomContent()) { 2093 mWorkspaceScreens.get(CUSTOM_CONTENT_SCREEN_ID).setVisibility(visibility); 2094 } 2095 } 2096 2097 void showCustomContentIfNecessary() { 2098 boolean show = mState == Workspace.State.NORMAL; 2099 if (show && hasCustomContent()) { 2100 mWorkspaceScreens.get(CUSTOM_CONTENT_SCREEN_ID).setVisibility(VISIBLE); 2101 } 2102 } 2103 2104 void hideCustomContentIfNecessary() { 2105 boolean hide = mState != Workspace.State.NORMAL; 2106 if (hide && hasCustomContent()) { 2107 disableLayoutTransitions(); 2108 mWorkspaceScreens.get(CUSTOM_CONTENT_SCREEN_ID).setVisibility(INVISIBLE); 2109 enableLayoutTransitions(); 2110 } 2111 } 2112 2113 /** 2114 * Returns the drawable for the given text view. 2115 */ 2116 public static Drawable getTextViewIcon(TextView tv) { 2117 final Drawable[] drawables = tv.getCompoundDrawables(); 2118 for (int i = 0; i < drawables.length; i++) { 2119 if (drawables[i] != null) { 2120 return drawables[i]; 2121 } 2122 } 2123 return null; 2124 } 2125 2126 /** 2127 * Draw the View v into the given Canvas. 2128 * 2129 * @param v the view to draw 2130 * @param destCanvas the canvas to draw on 2131 * @param padding the horizontal and vertical padding to use when drawing 2132 */ 2133 private static void drawDragView(View v, Canvas destCanvas, int padding) { 2134 final Rect clipRect = sTempRect; 2135 v.getDrawingRect(clipRect); 2136 2137 boolean textVisible = false; 2138 2139 destCanvas.save(); 2140 if (v instanceof TextView) { 2141 Drawable d = getTextViewIcon((TextView) v); 2142 Rect bounds = getDrawableBounds(d); 2143 clipRect.set(0, 0, bounds.width() + padding, bounds.height() + padding); 2144 destCanvas.translate(padding / 2 - bounds.left, padding / 2 - bounds.top); 2145 d.draw(destCanvas); 2146 } else { 2147 if (v instanceof FolderIcon) { 2148 // For FolderIcons the text can bleed into the icon area, and so we need to 2149 // hide the text completely (which can't be achieved by clipping). 2150 if (((FolderIcon) v).getTextVisible()) { 2151 ((FolderIcon) v).setTextVisible(false); 2152 textVisible = true; 2153 } 2154 } 2155 destCanvas.translate(-v.getScrollX() + padding / 2, -v.getScrollY() + padding / 2); 2156 destCanvas.clipRect(clipRect, Op.REPLACE); 2157 v.draw(destCanvas); 2158 2159 // Restore text visibility of FolderIcon if necessary 2160 if (textVisible) { 2161 ((FolderIcon) v).setTextVisible(true); 2162 } 2163 } 2164 destCanvas.restore(); 2165 } 2166 2167 /** 2168 * Returns a new bitmap to show when the given View is being dragged around. 2169 * Responsibility for the bitmap is transferred to the caller. 2170 * @param expectedPadding padding to add to the drag view. If a different padding was used 2171 * its value will be changed 2172 */ 2173 public Bitmap createDragBitmap(View v, AtomicInteger expectedPadding) { 2174 Bitmap b; 2175 2176 int padding = expectedPadding.get(); 2177 if (v instanceof TextView) { 2178 Drawable d = getTextViewIcon((TextView) v); 2179 Rect bounds = getDrawableBounds(d); 2180 b = Bitmap.createBitmap(bounds.width() + padding, 2181 bounds.height() + padding, Bitmap.Config.ARGB_8888); 2182 expectedPadding.set(padding - bounds.left - bounds.top); 2183 } else { 2184 b = Bitmap.createBitmap( 2185 v.getWidth() + padding, v.getHeight() + padding, Bitmap.Config.ARGB_8888); 2186 } 2187 2188 mCanvas.setBitmap(b); 2189 drawDragView(v, mCanvas, padding); 2190 mCanvas.setBitmap(null); 2191 2192 return b; 2193 } 2194 2195 /** 2196 * Returns a new bitmap to be used as the object outline, e.g. to visualize the drop location. 2197 * Responsibility for the bitmap is transferred to the caller. 2198 */ 2199 private Bitmap createDragOutline(View v, int padding) { 2200 final int outlineColor = getResources().getColor(R.color.outline_color); 2201 final Bitmap b = Bitmap.createBitmap( 2202 v.getWidth() + padding, v.getHeight() + padding, Bitmap.Config.ARGB_8888); 2203 2204 mCanvas.setBitmap(b); 2205 drawDragView(v, mCanvas, padding); 2206 mOutlineHelper.applyExpensiveOutlineWithBlur(b, mCanvas, outlineColor, outlineColor); 2207 mCanvas.setBitmap(null); 2208 return b; 2209 } 2210 2211 /** 2212 * Returns a new bitmap to be used as the object outline, e.g. to visualize the drop location. 2213 * Responsibility for the bitmap is transferred to the caller. 2214 */ 2215 private Bitmap createDragOutline(Bitmap orig, int padding, int w, int h, 2216 boolean clipAlpha) { 2217 final int outlineColor = getResources().getColor(R.color.outline_color); 2218 final Bitmap b = Bitmap.createBitmap(w, h, Bitmap.Config.ARGB_8888); 2219 mCanvas.setBitmap(b); 2220 2221 Rect src = new Rect(0, 0, orig.getWidth(), orig.getHeight()); 2222 float scaleFactor = Math.min((w - padding) / (float) orig.getWidth(), 2223 (h - padding) / (float) orig.getHeight()); 2224 int scaledWidth = (int) (scaleFactor * orig.getWidth()); 2225 int scaledHeight = (int) (scaleFactor * orig.getHeight()); 2226 Rect dst = new Rect(0, 0, scaledWidth, scaledHeight); 2227 2228 // center the image 2229 dst.offset((w - scaledWidth) / 2, (h - scaledHeight) / 2); 2230 2231 mCanvas.drawBitmap(orig, src, dst, null); 2232 mOutlineHelper.applyExpensiveOutlineWithBlur(b, mCanvas, outlineColor, outlineColor, 2233 clipAlpha); 2234 mCanvas.setBitmap(null); 2235 2236 return b; 2237 } 2238 2239 public void startDrag(CellLayout.CellInfo cellInfo) { 2240 startDrag(cellInfo, false); 2241 } 2242 2243 @Override 2244 public void startDrag(CellLayout.CellInfo cellInfo, boolean accessible) { 2245 View child = cellInfo.cell; 2246 2247 // Make sure the drag was started by a long press as opposed to a long click. 2248 if (!child.isInTouchMode()) { 2249 return; 2250 } 2251 2252 mDragInfo = cellInfo; 2253 child.setVisibility(INVISIBLE); 2254 CellLayout layout = (CellLayout) child.getParent().getParent(); 2255 layout.prepareChildForDrag(child); 2256 2257 beginDragShared(child, this, accessible); 2258 } 2259 2260 public void beginDragShared(View child, DragSource source, boolean accessible) { 2261 beginDragShared(child, new Point(), source, accessible); 2262 } 2263 2264 public void beginDragShared(View child, Point relativeTouchPos, DragSource source, 2265 boolean accessible) { 2266 child.clearFocus(); 2267 child.setPressed(false); 2268 2269 // The outline is used to visualize where the item will land if dropped 2270 mDragOutline = createDragOutline(child, DRAG_BITMAP_PADDING); 2271 2272 mLauncher.onDragStarted(child); 2273 // The drag bitmap follows the touch point around on the screen 2274 AtomicInteger padding = new AtomicInteger(DRAG_BITMAP_PADDING); 2275 final Bitmap b = createDragBitmap(child, padding); 2276 2277 final int bmpWidth = b.getWidth(); 2278 final int bmpHeight = b.getHeight(); 2279 2280 float scale = mLauncher.getDragLayer().getLocationInDragLayer(child, mTempXY); 2281 int dragLayerX = Math.round(mTempXY[0] - (bmpWidth - scale * child.getWidth()) / 2); 2282 int dragLayerY = Math.round(mTempXY[1] - (bmpHeight - scale * bmpHeight) / 2 2283 - padding.get() / 2); 2284 2285 DeviceProfile grid = mLauncher.getDeviceProfile(); 2286 Point dragVisualizeOffset = null; 2287 Rect dragRect = null; 2288 if (child instanceof BubbleTextView) { 2289 BubbleTextView icon = (BubbleTextView) child; 2290 int iconSize = grid.iconSizePx; 2291 int top = child.getPaddingTop(); 2292 int left = (bmpWidth - iconSize) / 2; 2293 int right = left + iconSize; 2294 int bottom = top + iconSize; 2295 if (icon.isLayoutHorizontal()) { 2296 // If the layout is horizontal, then if we are just picking up the icon, then just 2297 // use the child position since the icon is top-left aligned. Otherwise, offset 2298 // the drag layer position horizontally so that the icon is under the current 2299 // touch position. 2300 if (icon.getIcon().getBounds().contains(relativeTouchPos.x, relativeTouchPos.y)) { 2301 dragLayerX = Math.round(mTempXY[0]); 2302 } else { 2303 dragLayerX = Math.round(mTempXY[0] + relativeTouchPos.x - (bmpWidth / 2)); 2304 } 2305 } 2306 dragLayerY += top; 2307 // Note: The drag region is used to calculate drag layer offsets, but the 2308 // dragVisualizeOffset in addition to the dragRect (the size) to position the outline. 2309 dragVisualizeOffset = new Point(-padding.get() / 2, padding.get() / 2); 2310 dragRect = new Rect(left, top, right, bottom); 2311 } else if (child instanceof FolderIcon) { 2312 int previewSize = grid.folderIconSizePx; 2313 dragVisualizeOffset = new Point(-padding.get() / 2, 2314 padding.get() / 2 - child.getPaddingTop()); 2315 dragRect = new Rect(0, child.getPaddingTop(), child.getWidth(), previewSize); 2316 } 2317 2318 // Clear the pressed state if necessary 2319 if (child instanceof BubbleTextView) { 2320 BubbleTextView icon = (BubbleTextView) child; 2321 icon.clearPressedBackground(); 2322 } 2323 2324 Object dragObject = child.getTag(); 2325 if (!(dragObject instanceof ItemInfo)) { 2326 String msg = "Drag started with a view that has no tag set. This " 2327 + "will cause a crash (issue 11627249) down the line. " 2328 + "View: " + child + " tag: " + child.getTag(); 2329 throw new IllegalStateException(msg); 2330 } 2331 2332 DragView dv = mDragController.startDrag(b, dragLayerX, dragLayerY, source, 2333 (ItemInfo) dragObject, DragController.DRAG_ACTION_MOVE, dragVisualizeOffset, 2334 dragRect, scale, accessible); 2335 dv.setIntrinsicIconScaleFactor(source.getIntrinsicIconScaleFactor()); 2336 2337 if (child.getParent() instanceof ShortcutAndWidgetContainer) { 2338 mDragSourceInternal = (ShortcutAndWidgetContainer) child.getParent(); 2339 } 2340 2341 b.recycle(); 2342 } 2343 2344 public void beginExternalDragShared(View child, DragSource source) { 2345 DeviceProfile grid = mLauncher.getDeviceProfile(); 2346 int iconSize = grid.iconSizePx; 2347 2348 // Notify launcher of drag start 2349 mLauncher.onDragStarted(child); 2350 2351 // Compose a new drag bitmap that is of the icon size 2352 AtomicInteger padding = new AtomicInteger(DRAG_BITMAP_PADDING); 2353 final Bitmap tmpB = createDragBitmap(child, padding); 2354 Bitmap b = Bitmap.createBitmap(iconSize, iconSize, Bitmap.Config.ARGB_8888); 2355 Paint p = new Paint(); 2356 p.setFilterBitmap(true); 2357 mCanvas.setBitmap(b); 2358 mCanvas.drawBitmap(tmpB, new Rect(0, 0, tmpB.getWidth(), tmpB.getHeight()), 2359 new Rect(0, 0, iconSize, iconSize), p); 2360 mCanvas.setBitmap(null); 2361 2362 // Find the child's location on the screen 2363 int bmpWidth = tmpB.getWidth(); 2364 float iconScale = (float) bmpWidth / iconSize; 2365 float scale = mLauncher.getDragLayer().getLocationInDragLayer(child, mTempXY) * iconScale; 2366 int dragLayerX = Math.round(mTempXY[0] - (bmpWidth - scale * child.getWidth()) / 2); 2367 int dragLayerY = Math.round(mTempXY[1]); 2368 2369 // Note: The drag region is used to calculate drag layer offsets, but the 2370 // dragVisualizeOffset in addition to the dragRect (the size) to position the outline. 2371 Point dragVisualizeOffset = new Point(-padding.get() / 2, padding.get() / 2); 2372 Rect dragRect = new Rect(0, 0, iconSize, iconSize); 2373 2374 Object dragObject = child.getTag(); 2375 if (!(dragObject instanceof ItemInfo)) { 2376 String msg = "Drag started with a view that has no tag set. This " 2377 + "will cause a crash (issue 11627249) down the line. " 2378 + "View: " + child + " tag: " + child.getTag(); 2379 throw new IllegalStateException(msg); 2380 } 2381 2382 // Start the drag 2383 DragView dv = mDragController.startDrag(b, dragLayerX, dragLayerY, source, 2384 (ItemInfo) dragObject, DragController.DRAG_ACTION_MOVE, dragVisualizeOffset, 2385 dragRect, scale, false); 2386 dv.setIntrinsicIconScaleFactor(source.getIntrinsicIconScaleFactor()); 2387 2388 // Recycle temporary bitmaps 2389 tmpB.recycle(); 2390 } 2391 2392 public boolean transitionStateShouldAllowDrop() { 2393 return ((!isSwitchingState() || mTransitionProgress > 0.5f) && 2394 (mState == State.NORMAL || mState == State.SPRING_LOADED)); 2395 } 2396 2397 /** 2398 * {@inheritDoc} 2399 */ 2400 public boolean acceptDrop(DragObject d) { 2401 // If it's an external drop (e.g. from All Apps), check if it should be accepted 2402 CellLayout dropTargetLayout = mDropToLayout; 2403 if (d.dragSource != this) { 2404 // Don't accept the drop if we're not over a screen at time of drop 2405 if (dropTargetLayout == null) { 2406 return false; 2407 } 2408 if (!transitionStateShouldAllowDrop()) return false; 2409 2410 mDragViewVisualCenter = d.getVisualCenter(mDragViewVisualCenter); 2411 2412 // We want the point to be mapped to the dragTarget. 2413 if (mLauncher.isHotseatLayout(dropTargetLayout)) { 2414 mapPointFromSelfToHotseatLayout(mLauncher.getHotseat(), mDragViewVisualCenter); 2415 } else { 2416 mapPointFromSelfToChild(dropTargetLayout, mDragViewVisualCenter, null); 2417 } 2418 2419 int spanX = 1; 2420 int spanY = 1; 2421 if (mDragInfo != null) { 2422 final CellLayout.CellInfo dragCellInfo = mDragInfo; 2423 spanX = dragCellInfo.spanX; 2424 spanY = dragCellInfo.spanY; 2425 } else { 2426 spanX = d.dragInfo.spanX; 2427 spanY = d.dragInfo.spanY; 2428 } 2429 2430 int minSpanX = spanX; 2431 int minSpanY = spanY; 2432 if (d.dragInfo instanceof PendingAddWidgetInfo) { 2433 minSpanX = ((PendingAddWidgetInfo) d.dragInfo).minSpanX; 2434 minSpanY = ((PendingAddWidgetInfo) d.dragInfo).minSpanY; 2435 } 2436 2437 mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], 2438 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, dropTargetLayout, 2439 mTargetCell); 2440 float distance = dropTargetLayout.getDistanceFromCell(mDragViewVisualCenter[0], 2441 mDragViewVisualCenter[1], mTargetCell); 2442 if (mCreateUserFolderOnDrop && willCreateUserFolder(d.dragInfo, 2443 dropTargetLayout, mTargetCell, distance, true)) { 2444 return true; 2445 } 2446 2447 if (mAddToExistingFolderOnDrop && willAddToExistingUserFolder(d.dragInfo, 2448 dropTargetLayout, mTargetCell, distance)) { 2449 return true; 2450 } 2451 2452 int[] resultSpan = new int[2]; 2453 mTargetCell = dropTargetLayout.performReorder((int) mDragViewVisualCenter[0], 2454 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, spanX, spanY, 2455 null, mTargetCell, resultSpan, CellLayout.MODE_ACCEPT_DROP); 2456 boolean foundCell = mTargetCell[0] >= 0 && mTargetCell[1] >= 0; 2457 2458 // Don't accept the drop if there's no room for the item 2459 if (!foundCell) { 2460 // Don't show the message if we are dropping on the AllApps button and the hotseat 2461 // is full 2462 boolean isHotseat = mLauncher.isHotseatLayout(dropTargetLayout); 2463 if (mTargetCell != null && isHotseat) { 2464 Hotseat hotseat = mLauncher.getHotseat(); 2465 if (hotseat.isAllAppsButtonRank( 2466 hotseat.getOrderInHotseat(mTargetCell[0], mTargetCell[1]))) { 2467 return false; 2468 } 2469 } 2470 2471 mLauncher.showOutOfSpaceMessage(isHotseat); 2472 return false; 2473 } 2474 } 2475 2476 long screenId = getIdForScreen(dropTargetLayout); 2477 if (screenId == EXTRA_EMPTY_SCREEN_ID) { 2478 commitExtraEmptyScreen(); 2479 } 2480 2481 return true; 2482 } 2483 2484 boolean willCreateUserFolder(ItemInfo info, CellLayout target, int[] targetCell, float 2485 distance, boolean considerTimeout) { 2486 if (distance > mMaxDistanceForFolderCreation) return false; 2487 View dropOverView = target.getChildAt(targetCell[0], targetCell[1]); 2488 2489 if (dropOverView != null) { 2490 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) dropOverView.getLayoutParams(); 2491 if (lp.useTmpCoords && (lp.tmpCellX != lp.cellX || lp.tmpCellY != lp.tmpCellY)) { 2492 return false; 2493 } 2494 } 2495 2496 boolean hasntMoved = false; 2497 if (mDragInfo != null) { 2498 hasntMoved = dropOverView == mDragInfo.cell; 2499 } 2500 2501 if (dropOverView == null || hasntMoved || (considerTimeout && !mCreateUserFolderOnDrop)) { 2502 return false; 2503 } 2504 2505 boolean aboveShortcut = (dropOverView.getTag() instanceof ShortcutInfo); 2506 boolean willBecomeShortcut = 2507 (info.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPLICATION || 2508 info.itemType == LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT); 2509 2510 return (aboveShortcut && willBecomeShortcut); 2511 } 2512 2513 boolean willAddToExistingUserFolder(ItemInfo dragInfo, CellLayout target, int[] targetCell, 2514 float distance) { 2515 if (distance > mMaxDistanceForFolderCreation) return false; 2516 View dropOverView = target.getChildAt(targetCell[0], targetCell[1]); 2517 2518 if (dropOverView != null) { 2519 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) dropOverView.getLayoutParams(); 2520 if (lp.useTmpCoords && (lp.tmpCellX != lp.cellX || lp.tmpCellY != lp.tmpCellY)) { 2521 return false; 2522 } 2523 } 2524 2525 if (dropOverView instanceof FolderIcon) { 2526 FolderIcon fi = (FolderIcon) dropOverView; 2527 if (fi.acceptDrop(dragInfo)) { 2528 return true; 2529 } 2530 } 2531 return false; 2532 } 2533 2534 boolean createUserFolderIfNecessary(View newView, long container, CellLayout target, 2535 int[] targetCell, float distance, boolean external, DragView dragView, 2536 Runnable postAnimationRunnable) { 2537 if (distance > mMaxDistanceForFolderCreation) return false; 2538 View v = target.getChildAt(targetCell[0], targetCell[1]); 2539 2540 boolean hasntMoved = false; 2541 if (mDragInfo != null) { 2542 CellLayout cellParent = getParentCellLayoutForView(mDragInfo.cell); 2543 hasntMoved = (mDragInfo.cellX == targetCell[0] && 2544 mDragInfo.cellY == targetCell[1]) && (cellParent == target); 2545 } 2546 2547 if (v == null || hasntMoved || !mCreateUserFolderOnDrop) return false; 2548 mCreateUserFolderOnDrop = false; 2549 final long screenId = (targetCell == null) ? mDragInfo.screenId : getIdForScreen(target); 2550 2551 boolean aboveShortcut = (v.getTag() instanceof ShortcutInfo); 2552 boolean willBecomeShortcut = (newView.getTag() instanceof ShortcutInfo); 2553 2554 if (aboveShortcut && willBecomeShortcut) { 2555 ShortcutInfo sourceInfo = (ShortcutInfo) newView.getTag(); 2556 ShortcutInfo destInfo = (ShortcutInfo) v.getTag(); 2557 // if the drag started here, we need to remove it from the workspace 2558 if (!external) { 2559 getParentCellLayoutForView(mDragInfo.cell).removeView(mDragInfo.cell); 2560 } 2561 2562 Rect folderLocation = new Rect(); 2563 float scale = mLauncher.getDragLayer().getDescendantRectRelativeToSelf(v, folderLocation); 2564 target.removeView(v); 2565 2566 FolderIcon fi = 2567 mLauncher.addFolder(target, container, screenId, targetCell[0], targetCell[1]); 2568 destInfo.cellX = -1; 2569 destInfo.cellY = -1; 2570 sourceInfo.cellX = -1; 2571 sourceInfo.cellY = -1; 2572 2573 // If the dragView is null, we can't animate 2574 boolean animate = dragView != null; 2575 if (animate) { 2576 fi.performCreateAnimation(destInfo, v, sourceInfo, dragView, folderLocation, scale, 2577 postAnimationRunnable); 2578 } else { 2579 fi.addItem(destInfo); 2580 fi.addItem(sourceInfo); 2581 } 2582 return true; 2583 } 2584 return false; 2585 } 2586 2587 boolean addToExistingFolderIfNecessary(View newView, CellLayout target, int[] targetCell, 2588 float distance, DragObject d, boolean external) { 2589 if (distance > mMaxDistanceForFolderCreation) return false; 2590 2591 View dropOverView = target.getChildAt(targetCell[0], targetCell[1]); 2592 if (!mAddToExistingFolderOnDrop) return false; 2593 mAddToExistingFolderOnDrop = false; 2594 2595 if (dropOverView instanceof FolderIcon) { 2596 FolderIcon fi = (FolderIcon) dropOverView; 2597 if (fi.acceptDrop(d.dragInfo)) { 2598 fi.onDrop(d); 2599 2600 // if the drag started here, we need to remove it from the workspace 2601 if (!external) { 2602 getParentCellLayoutForView(mDragInfo.cell).removeView(mDragInfo.cell); 2603 } 2604 return true; 2605 } 2606 } 2607 return false; 2608 } 2609 2610 @Override 2611 public void prepareAccessibilityDrop() { } 2612 2613 public void onDrop(final DragObject d) { 2614 mDragViewVisualCenter = d.getVisualCenter(mDragViewVisualCenter); 2615 CellLayout dropTargetLayout = mDropToLayout; 2616 2617 // We want the point to be mapped to the dragTarget. 2618 if (dropTargetLayout != null) { 2619 if (mLauncher.isHotseatLayout(dropTargetLayout)) { 2620 mapPointFromSelfToHotseatLayout(mLauncher.getHotseat(), mDragViewVisualCenter); 2621 } else { 2622 mapPointFromSelfToChild(dropTargetLayout, mDragViewVisualCenter, null); 2623 } 2624 } 2625 2626 int snapScreen = -1; 2627 boolean resizeOnDrop = false; 2628 if (d.dragSource != this) { 2629 final int[] touchXY = new int[] { (int) mDragViewVisualCenter[0], 2630 (int) mDragViewVisualCenter[1] }; 2631 onDropExternal(touchXY, d.dragInfo, dropTargetLayout, false, d); 2632 } else if (mDragInfo != null) { 2633 final View cell = mDragInfo.cell; 2634 2635 Runnable resizeRunnable = null; 2636 if (dropTargetLayout != null && !d.cancelled) { 2637 // Move internally 2638 boolean hasMovedLayouts = (getParentCellLayoutForView(cell) != dropTargetLayout); 2639 boolean hasMovedIntoHotseat = mLauncher.isHotseatLayout(dropTargetLayout); 2640 long container = hasMovedIntoHotseat ? 2641 LauncherSettings.Favorites.CONTAINER_HOTSEAT : 2642 LauncherSettings.Favorites.CONTAINER_DESKTOP; 2643 long screenId = (mTargetCell[0] < 0) ? 2644 mDragInfo.screenId : getIdForScreen(dropTargetLayout); 2645 int spanX = mDragInfo != null ? mDragInfo.spanX : 1; 2646 int spanY = mDragInfo != null ? mDragInfo.spanY : 1; 2647 // First we find the cell nearest to point at which the item is 2648 // dropped, without any consideration to whether there is an item there. 2649 2650 mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], (int) 2651 mDragViewVisualCenter[1], spanX, spanY, dropTargetLayout, mTargetCell); 2652 float distance = dropTargetLayout.getDistanceFromCell(mDragViewVisualCenter[0], 2653 mDragViewVisualCenter[1], mTargetCell); 2654 2655 // If the item being dropped is a shortcut and the nearest drop 2656 // cell also contains a shortcut, then create a folder with the two shortcuts. 2657 if (!mInScrollArea && createUserFolderIfNecessary(cell, container, 2658 dropTargetLayout, mTargetCell, distance, false, d.dragView, null)) { 2659 return; 2660 } 2661 2662 if (addToExistingFolderIfNecessary(cell, dropTargetLayout, mTargetCell, 2663 distance, d, false)) { 2664 return; 2665 } 2666 2667 // Aside from the special case where we're dropping a shortcut onto a shortcut, 2668 // we need to find the nearest cell location that is vacant 2669 ItemInfo item = d.dragInfo; 2670 int minSpanX = item.spanX; 2671 int minSpanY = item.spanY; 2672 if (item.minSpanX > 0 && item.minSpanY > 0) { 2673 minSpanX = item.minSpanX; 2674 minSpanY = item.minSpanY; 2675 } 2676 2677 int[] resultSpan = new int[2]; 2678 mTargetCell = dropTargetLayout.performReorder((int) mDragViewVisualCenter[0], 2679 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, spanX, spanY, cell, 2680 mTargetCell, resultSpan, CellLayout.MODE_ON_DROP); 2681 2682 boolean foundCell = mTargetCell[0] >= 0 && mTargetCell[1] >= 0; 2683 2684 // if the widget resizes on drop 2685 if (foundCell && (cell instanceof AppWidgetHostView) && 2686 (resultSpan[0] != item.spanX || resultSpan[1] != item.spanY)) { 2687 resizeOnDrop = true; 2688 item.spanX = resultSpan[0]; 2689 item.spanY = resultSpan[1]; 2690 AppWidgetHostView awhv = (AppWidgetHostView) cell; 2691 AppWidgetResizeFrame.updateWidgetSizeRanges(awhv, mLauncher, resultSpan[0], 2692 resultSpan[1]); 2693 } 2694 2695 if (getScreenIdForPageIndex(mCurrentPage) != screenId && !hasMovedIntoHotseat) { 2696 snapScreen = getPageIndexForScreenId(screenId); 2697 snapToPage(snapScreen); 2698 } 2699 2700 if (foundCell) { 2701 final ItemInfo info = (ItemInfo) cell.getTag(); 2702 if (hasMovedLayouts) { 2703 // Reparent the view 2704 CellLayout parentCell = getParentCellLayoutForView(cell); 2705 if (parentCell != null) { 2706 parentCell.removeView(cell); 2707 } else if (ProviderConfig.IS_DOGFOOD_BUILD) { 2708 throw new NullPointerException("mDragInfo.cell has null parent"); 2709 } 2710 addInScreen(cell, container, screenId, mTargetCell[0], mTargetCell[1], 2711 info.spanX, info.spanY); 2712 } 2713 2714 // update the item's position after drop 2715 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) cell.getLayoutParams(); 2716 lp.cellX = lp.tmpCellX = mTargetCell[0]; 2717 lp.cellY = lp.tmpCellY = mTargetCell[1]; 2718 lp.cellHSpan = item.spanX; 2719 lp.cellVSpan = item.spanY; 2720 lp.isLockedToGrid = true; 2721 2722 if (container != LauncherSettings.Favorites.CONTAINER_HOTSEAT && 2723 cell instanceof LauncherAppWidgetHostView) { 2724 final CellLayout cellLayout = dropTargetLayout; 2725 // We post this call so that the widget has a chance to be placed 2726 // in its final location 2727 2728 final LauncherAppWidgetHostView hostView = (LauncherAppWidgetHostView) cell; 2729 AppWidgetProviderInfo pInfo = hostView.getAppWidgetInfo(); 2730 if (pInfo != null && pInfo.resizeMode != AppWidgetProviderInfo.RESIZE_NONE 2731 && !d.accessibleDrag) { 2732 final Runnable addResizeFrame = new Runnable() { 2733 public void run() { 2734 DragLayer dragLayer = mLauncher.getDragLayer(); 2735 dragLayer.addResizeFrame(info, hostView, cellLayout); 2736 } 2737 }; 2738 resizeRunnable = (new Runnable() { 2739 public void run() { 2740 if (!isPageMoving()) { 2741 addResizeFrame.run(); 2742 } else { 2743 mDelayedResizeRunnable = addResizeFrame; 2744 } 2745 } 2746 }); 2747 } 2748 } 2749 2750 LauncherModel.modifyItemInDatabase(mLauncher, info, container, screenId, lp.cellX, 2751 lp.cellY, item.spanX, item.spanY); 2752 } else { 2753 // If we can't find a drop location, we return the item to its original position 2754 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) cell.getLayoutParams(); 2755 mTargetCell[0] = lp.cellX; 2756 mTargetCell[1] = lp.cellY; 2757 CellLayout layout = (CellLayout) cell.getParent().getParent(); 2758 layout.markCellsAsOccupiedForView(cell); 2759 } 2760 } 2761 2762 final CellLayout parent = (CellLayout) cell.getParent().getParent(); 2763 final Runnable finalResizeRunnable = resizeRunnable; 2764 // Prepare it to be animated into its new position 2765 // This must be called after the view has been re-parented 2766 final Runnable onCompleteRunnable = new Runnable() { 2767 @Override 2768 public void run() { 2769 mAnimatingViewIntoPlace = false; 2770 updateChildrenLayersEnabled(false); 2771 if (finalResizeRunnable != null) { 2772 finalResizeRunnable.run(); 2773 } 2774 } 2775 }; 2776 mAnimatingViewIntoPlace = true; 2777 if (d.dragView.hasDrawn()) { 2778 final ItemInfo info = (ItemInfo) cell.getTag(); 2779 boolean isWidget = info.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET 2780 || info.itemType == LauncherSettings.Favorites.ITEM_TYPE_CUSTOM_APPWIDGET; 2781 if (isWidget) { 2782 int animationType = resizeOnDrop ? ANIMATE_INTO_POSITION_AND_RESIZE : 2783 ANIMATE_INTO_POSITION_AND_DISAPPEAR; 2784 animateWidgetDrop(info, parent, d.dragView, 2785 onCompleteRunnable, animationType, cell, false); 2786 } else { 2787 int duration = snapScreen < 0 ? -1 : ADJACENT_SCREEN_DROP_DURATION; 2788 mLauncher.getDragLayer().animateViewIntoPosition(d.dragView, cell, duration, 2789 onCompleteRunnable, this); 2790 } 2791 } else { 2792 d.deferDragViewCleanupPostAnimation = false; 2793 cell.setVisibility(VISIBLE); 2794 } 2795 parent.onDropChild(cell); 2796 } 2797 } 2798 2799 /** 2800 * Computes the area relative to dragLayer which is used to display a page. 2801 */ 2802 public void getPageAreaRelativeToDragLayer(Rect outArea) { 2803 CellLayout child = (CellLayout) getChildAt(getNextPage()); 2804 if (child == null) { 2805 return; 2806 } 2807 ShortcutAndWidgetContainer boundingLayout = child.getShortcutsAndWidgets(); 2808 2809 // Use the absolute left instead of the child left, as we want the visible area 2810 // irrespective of the visible child. Since the view can only scroll horizontally, the 2811 // top position is not affected. 2812 mTempXY[0] = getViewportOffsetX() + getPaddingLeft() + boundingLayout.getLeft(); 2813 mTempXY[1] = child.getTop() + boundingLayout.getTop(); 2814 2815 float scale = mLauncher.getDragLayer().getDescendantCoordRelativeToSelf(this, mTempXY); 2816 outArea.set(mTempXY[0], mTempXY[1], 2817 (int) (mTempXY[0] + scale * boundingLayout.getMeasuredWidth()), 2818 (int) (mTempXY[1] + scale * boundingLayout.getMeasuredHeight())); 2819 } 2820 2821 public void getViewLocationRelativeToSelf(View v, int[] location) { 2822 getLocationInWindow(location); 2823 int x = location[0]; 2824 int y = location[1]; 2825 2826 v.getLocationInWindow(location); 2827 int vX = location[0]; 2828 int vY = location[1]; 2829 2830 location[0] = vX - x; 2831 location[1] = vY - y; 2832 } 2833 2834 @Override 2835 public void onDragEnter(DragObject d) { 2836 if (ENFORCE_DRAG_EVENT_ORDER) { 2837 enfoceDragParity("onDragEnter", 1, 1); 2838 } 2839 2840 mCreateUserFolderOnDrop = false; 2841 mAddToExistingFolderOnDrop = false; 2842 2843 mDropToLayout = null; 2844 CellLayout layout = getCurrentDropLayout(); 2845 setCurrentDropLayout(layout); 2846 setCurrentDragOverlappingLayout(layout); 2847 2848 if (!workspaceInModalState()) { 2849 mLauncher.getDragLayer().showPageHints(); 2850 } 2851 } 2852 2853 /** Return a rect that has the cellWidth/cellHeight (left, top), and 2854 * widthGap/heightGap (right, bottom) */ 2855 static Rect getCellLayoutMetrics(Launcher launcher, int orientation) { 2856 LauncherAppState app = LauncherAppState.getInstance(); 2857 InvariantDeviceProfile inv = app.getInvariantDeviceProfile(); 2858 2859 Display display = launcher.getWindowManager().getDefaultDisplay(); 2860 Point smallestSize = new Point(); 2861 Point largestSize = new Point(); 2862 display.getCurrentSizeRange(smallestSize, largestSize); 2863 int countX = (int) inv.numColumns; 2864 int countY = (int) inv.numRows; 2865 boolean isLayoutRtl = Utilities.isRtl(launcher.getResources()); 2866 if (orientation == CellLayout.LANDSCAPE) { 2867 if (mLandscapeCellLayoutMetrics == null) { 2868 Rect padding = inv.landscapeProfile.getWorkspacePadding(isLayoutRtl); 2869 int width = largestSize.x - padding.left - padding.right; 2870 int height = smallestSize.y - padding.top - padding.bottom; 2871 mLandscapeCellLayoutMetrics = new Rect(); 2872 mLandscapeCellLayoutMetrics.set( 2873 DeviceProfile.calculateCellWidth(width, countX), 2874 DeviceProfile.calculateCellHeight(height, countY), 0, 0); 2875 } 2876 return mLandscapeCellLayoutMetrics; 2877 } else if (orientation == CellLayout.PORTRAIT) { 2878 if (mPortraitCellLayoutMetrics == null) { 2879 Rect padding = inv.portraitProfile.getWorkspacePadding(isLayoutRtl); 2880 int width = smallestSize.x - padding.left - padding.right; 2881 int height = largestSize.y - padding.top - padding.bottom; 2882 mPortraitCellLayoutMetrics = new Rect(); 2883 mPortraitCellLayoutMetrics.set( 2884 DeviceProfile.calculateCellWidth(width, countX), 2885 DeviceProfile.calculateCellHeight(height, countY), 0, 0); 2886 } 2887 return mPortraitCellLayoutMetrics; 2888 } 2889 return null; 2890 } 2891 2892 @Override 2893 public void onDragExit(DragObject d) { 2894 if (ENFORCE_DRAG_EVENT_ORDER) { 2895 enfoceDragParity("onDragExit", -1, 0); 2896 } 2897 2898 // Here we store the final page that will be dropped to, if the workspace in fact 2899 // receives the drop 2900 if (mInScrollArea) { 2901 if (isPageMoving()) { 2902 // If the user drops while the page is scrolling, we should use that page as the 2903 // destination instead of the page that is being hovered over. 2904 mDropToLayout = (CellLayout) getPageAt(getNextPage()); 2905 } else { 2906 mDropToLayout = mDragOverlappingLayout; 2907 } 2908 } else { 2909 mDropToLayout = mDragTargetLayout; 2910 } 2911 2912 if (mDragMode == DRAG_MODE_CREATE_FOLDER) { 2913 mCreateUserFolderOnDrop = true; 2914 } else if (mDragMode == DRAG_MODE_ADD_TO_FOLDER) { 2915 mAddToExistingFolderOnDrop = true; 2916 } 2917 2918 // Reset the scroll area and previous drag target 2919 onResetScrollArea(); 2920 setCurrentDropLayout(null); 2921 setCurrentDragOverlappingLayout(null); 2922 2923 mSpringLoadedDragController.cancel(); 2924 2925 mLauncher.getDragLayer().hidePageHints(); 2926 } 2927 2928 private void enfoceDragParity(String event, int update, int expectedValue) { 2929 enfoceDragParity(this, event, update, expectedValue); 2930 for (int i = 0; i < getChildCount(); i++) { 2931 enfoceDragParity(getChildAt(i), event, update, expectedValue); 2932 } 2933 } 2934 2935 private void enfoceDragParity(View v, String event, int update, int expectedValue) { 2936 Object tag = v.getTag(R.id.drag_event_parity); 2937 int value = tag == null ? 0 : (Integer) tag; 2938 value += update; 2939 v.setTag(R.id.drag_event_parity, value); 2940 2941 if (value != expectedValue) { 2942 Log.e(TAG, event + ": Drag contract violated: " + value); 2943 } 2944 } 2945 2946 void setCurrentDropLayout(CellLayout layout) { 2947 if (mDragTargetLayout != null) { 2948 mDragTargetLayout.revertTempState(); 2949 mDragTargetLayout.onDragExit(); 2950 } 2951 mDragTargetLayout = layout; 2952 if (mDragTargetLayout != null) { 2953 mDragTargetLayout.onDragEnter(); 2954 } 2955 cleanupReorder(true); 2956 cleanupFolderCreation(); 2957 setCurrentDropOverCell(-1, -1); 2958 } 2959 2960 void setCurrentDragOverlappingLayout(CellLayout layout) { 2961 if (mDragOverlappingLayout != null) { 2962 mDragOverlappingLayout.setIsDragOverlapping(false); 2963 } 2964 mDragOverlappingLayout = layout; 2965 if (mDragOverlappingLayout != null) { 2966 mDragOverlappingLayout.setIsDragOverlapping(true); 2967 } 2968 invalidate(); 2969 } 2970 2971 void setCurrentDropOverCell(int x, int y) { 2972 if (x != mDragOverX || y != mDragOverY) { 2973 mDragOverX = x; 2974 mDragOverY = y; 2975 setDragMode(DRAG_MODE_NONE); 2976 } 2977 } 2978 2979 void setDragMode(int dragMode) { 2980 if (dragMode != mDragMode) { 2981 if (dragMode == DRAG_MODE_NONE) { 2982 cleanupAddToFolder(); 2983 // We don't want to cancel the re-order alarm every time the target cell changes 2984 // as this feels to slow / unresponsive. 2985 cleanupReorder(false); 2986 cleanupFolderCreation(); 2987 } else if (dragMode == DRAG_MODE_ADD_TO_FOLDER) { 2988 cleanupReorder(true); 2989 cleanupFolderCreation(); 2990 } else if (dragMode == DRAG_MODE_CREATE_FOLDER) { 2991 cleanupAddToFolder(); 2992 cleanupReorder(true); 2993 } else if (dragMode == DRAG_MODE_REORDER) { 2994 cleanupAddToFolder(); 2995 cleanupFolderCreation(); 2996 } 2997 mDragMode = dragMode; 2998 } 2999 } 3000 3001 private void cleanupFolderCreation() { 3002 if (mDragFolderRingAnimator != null) { 3003 mDragFolderRingAnimator.animateToNaturalState(); 3004 mDragFolderRingAnimator = null; 3005 } 3006 mFolderCreationAlarm.setOnAlarmListener(null); 3007 mFolderCreationAlarm.cancelAlarm(); 3008 } 3009 3010 private void cleanupAddToFolder() { 3011 if (mDragOverFolderIcon != null) { 3012 mDragOverFolderIcon.onDragExit(null); 3013 mDragOverFolderIcon = null; 3014 } 3015 } 3016 3017 private void cleanupReorder(boolean cancelAlarm) { 3018 // Any pending reorders are canceled 3019 if (cancelAlarm) { 3020 mReorderAlarm.cancelAlarm(); 3021 } 3022 mLastReorderX = -1; 3023 mLastReorderY = -1; 3024 } 3025 3026 /* 3027 * 3028 * Convert the 2D coordinate xy from the parent View's coordinate space to this CellLayout's 3029 * coordinate space. The argument xy is modified with the return result. 3030 * 3031 * if cachedInverseMatrix is not null, this method will just use that matrix instead of 3032 * computing it itself; we use this to avoid redundant matrix inversions in 3033 * findMatchingPageForDragOver 3034 * 3035 */ 3036 void mapPointFromSelfToChild(View v, float[] xy, Matrix cachedInverseMatrix) { 3037 xy[0] = xy[0] - v.getLeft(); 3038 xy[1] = xy[1] - v.getTop(); 3039 } 3040 3041 boolean isPointInSelfOverHotseat(int x, int y) { 3042 mTempXY[0] = x; 3043 mTempXY[1] = y; 3044 mLauncher.getDragLayer().getDescendantCoordRelativeToSelf(this, mTempXY, true); 3045 return mLauncher.getDeviceProfile().isInHotseatRect(mTempXY[0], mTempXY[1]); 3046 } 3047 3048 void mapPointFromSelfToHotseatLayout(Hotseat hotseat, float[] xy) { 3049 mTempXY[0] = (int) xy[0]; 3050 mTempXY[1] = (int) xy[1]; 3051 mLauncher.getDragLayer().getDescendantCoordRelativeToSelf(this, mTempXY, true); 3052 mLauncher.getDragLayer().mapCoordInSelfToDescendent(hotseat.getLayout(), mTempXY); 3053 3054 xy[0] = mTempXY[0]; 3055 xy[1] = mTempXY[1]; 3056 } 3057 3058 /* 3059 * 3060 * Convert the 2D coordinate xy from this CellLayout's coordinate space to 3061 * the parent View's coordinate space. The argument xy is modified with the return result. 3062 * 3063 */ 3064 void mapPointFromChildToSelf(View v, float[] xy) { 3065 xy[0] += v.getLeft(); 3066 xy[1] += v.getTop(); 3067 } 3068 3069 static private float squaredDistance(float[] point1, float[] point2) { 3070 float distanceX = point1[0] - point2[0]; 3071 float distanceY = point2[1] - point2[1]; 3072 return distanceX * distanceX + distanceY * distanceY; 3073 } 3074 3075 /* 3076 * 3077 * This method returns the CellLayout that is currently being dragged to. In order to drag 3078 * to a CellLayout, either the touch point must be directly over the CellLayout, or as a second 3079 * strategy, we see if the dragView is overlapping any CellLayout and choose the closest one 3080 * 3081 * Return null if no CellLayout is currently being dragged over 3082 * 3083 */ 3084 private CellLayout findMatchingPageForDragOver( 3085 DragView dragView, float originX, float originY, boolean exact) { 3086 // We loop through all the screens (ie CellLayouts) and see which ones overlap 3087 // with the item being dragged and then choose the one that's closest to the touch point 3088 final int screenCount = getChildCount(); 3089 CellLayout bestMatchingScreen = null; 3090 float smallestDistSoFar = Float.MAX_VALUE; 3091 3092 for (int i = 0; i < screenCount; i++) { 3093 // The custom content screen is not a valid drag over option 3094 if (mScreenOrder.get(i) == CUSTOM_CONTENT_SCREEN_ID) { 3095 continue; 3096 } 3097 3098 CellLayout cl = (CellLayout) getChildAt(i); 3099 3100 final float[] touchXy = {originX, originY}; 3101 // Transform the touch coordinates to the CellLayout's local coordinates 3102 // If the touch point is within the bounds of the cell layout, we can return immediately 3103 cl.getMatrix().invert(sTmpInvMatrix); 3104 mapPointFromSelfToChild(cl, touchXy, sTmpInvMatrix); 3105 3106 if (touchXy[0] >= 0 && touchXy[0] <= cl.getWidth() && 3107 touchXy[1] >= 0 && touchXy[1] <= cl.getHeight()) { 3108 return cl; 3109 } 3110 3111 if (!exact) { 3112 // Get the center of the cell layout in screen coordinates 3113 final float[] cellLayoutCenter = mTempCellLayoutCenterCoordinates; 3114 cellLayoutCenter[0] = cl.getWidth()/2; 3115 cellLayoutCenter[1] = cl.getHeight()/2; 3116 mapPointFromChildToSelf(cl, cellLayoutCenter); 3117 3118 touchXy[0] = originX; 3119 touchXy[1] = originY; 3120 3121 // Calculate the distance between the center of the CellLayout 3122 // and the touch point 3123 float dist = squaredDistance(touchXy, cellLayoutCenter); 3124 3125 if (dist < smallestDistSoFar) { 3126 smallestDistSoFar = dist; 3127 bestMatchingScreen = cl; 3128 } 3129 } 3130 } 3131 return bestMatchingScreen; 3132 } 3133 3134 private boolean isDragWidget(DragObject d) { 3135 return (d.dragInfo instanceof LauncherAppWidgetInfo || 3136 d.dragInfo instanceof PendingAddWidgetInfo); 3137 } 3138 private boolean isExternalDragWidget(DragObject d) { 3139 return d.dragSource != this && isDragWidget(d); 3140 } 3141 3142 public void onDragOver(DragObject d) { 3143 // Skip drag over events while we are dragging over side pages 3144 if (mInScrollArea || !transitionStateShouldAllowDrop()) return; 3145 3146 CellLayout layout = null; 3147 ItemInfo item = d.dragInfo; 3148 if (item == null) { 3149 if (ProviderConfig.IS_DOGFOOD_BUILD) { 3150 throw new NullPointerException("DragObject has null info"); 3151 } 3152 return; 3153 } 3154 3155 // Ensure that we have proper spans for the item that we are dropping 3156 if (item.spanX < 0 || item.spanY < 0) throw new RuntimeException("Improper spans found"); 3157 mDragViewVisualCenter = d.getVisualCenter(mDragViewVisualCenter); 3158 3159 final View child = (mDragInfo == null) ? null : mDragInfo.cell; 3160 // Identify whether we have dragged over a side page 3161 if (workspaceInModalState()) { 3162 if (mLauncher.getHotseat() != null && !isExternalDragWidget(d)) { 3163 if (isPointInSelfOverHotseat(d.x, d.y)) { 3164 layout = mLauncher.getHotseat().getLayout(); 3165 } 3166 } 3167 if (layout == null) { 3168 layout = findMatchingPageForDragOver(d.dragView, d.x, d.y, false); 3169 } 3170 if (layout != mDragTargetLayout) { 3171 setCurrentDropLayout(layout); 3172 setCurrentDragOverlappingLayout(layout); 3173 3174 boolean isInSpringLoadedMode = (mState == State.SPRING_LOADED); 3175 if (isInSpringLoadedMode) { 3176 if (mLauncher.isHotseatLayout(layout)) { 3177 mSpringLoadedDragController.cancel(); 3178 } else { 3179 mSpringLoadedDragController.setAlarm(mDragTargetLayout); 3180 } 3181 } 3182 } 3183 } else { 3184 // Test to see if we are over the hotseat otherwise just use the current page 3185 if (mLauncher.getHotseat() != null && !isDragWidget(d)) { 3186 if (isPointInSelfOverHotseat(d.x, d.y)) { 3187 layout = mLauncher.getHotseat().getLayout(); 3188 } 3189 } 3190 if (layout == null) { 3191 layout = getCurrentDropLayout(); 3192 } 3193 if (layout != mDragTargetLayout) { 3194 setCurrentDropLayout(layout); 3195 setCurrentDragOverlappingLayout(layout); 3196 } 3197 } 3198 3199 // Handle the drag over 3200 if (mDragTargetLayout != null) { 3201 // We want the point to be mapped to the dragTarget. 3202 if (mLauncher.isHotseatLayout(mDragTargetLayout)) { 3203 mapPointFromSelfToHotseatLayout(mLauncher.getHotseat(), mDragViewVisualCenter); 3204 } else { 3205 mapPointFromSelfToChild(mDragTargetLayout, mDragViewVisualCenter, null); 3206 } 3207 3208 ItemInfo info = d.dragInfo; 3209 3210 int minSpanX = item.spanX; 3211 int minSpanY = item.spanY; 3212 if (item.minSpanX > 0 && item.minSpanY > 0) { 3213 minSpanX = item.minSpanX; 3214 minSpanY = item.minSpanY; 3215 } 3216 3217 mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], 3218 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, 3219 mDragTargetLayout, mTargetCell); 3220 int reorderX = mTargetCell[0]; 3221 int reorderY = mTargetCell[1]; 3222 3223 setCurrentDropOverCell(mTargetCell[0], mTargetCell[1]); 3224 3225 float targetCellDistance = mDragTargetLayout.getDistanceFromCell( 3226 mDragViewVisualCenter[0], mDragViewVisualCenter[1], mTargetCell); 3227 3228 final View dragOverView = mDragTargetLayout.getChildAt(mTargetCell[0], 3229 mTargetCell[1]); 3230 3231 manageFolderFeedback(info, mDragTargetLayout, mTargetCell, 3232 targetCellDistance, dragOverView, d.accessibleDrag); 3233 3234 boolean nearestDropOccupied = mDragTargetLayout.isNearestDropLocationOccupied((int) 3235 mDragViewVisualCenter[0], (int) mDragViewVisualCenter[1], item.spanX, 3236 item.spanY, child, mTargetCell); 3237 3238 if (!nearestDropOccupied) { 3239 mDragTargetLayout.visualizeDropLocation(child, mDragOutline, 3240 (int) mDragViewVisualCenter[0], (int) mDragViewVisualCenter[1], 3241 mTargetCell[0], mTargetCell[1], item.spanX, item.spanY, false, 3242 d.dragView.getDragVisualizeOffset(), d.dragView.getDragRegion()); 3243 } else if ((mDragMode == DRAG_MODE_NONE || mDragMode == DRAG_MODE_REORDER) 3244 && !mReorderAlarm.alarmPending() && (mLastReorderX != reorderX || 3245 mLastReorderY != reorderY)) { 3246 3247 int[] resultSpan = new int[2]; 3248 mDragTargetLayout.performReorder((int) mDragViewVisualCenter[0], 3249 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, item.spanX, item.spanY, 3250 child, mTargetCell, resultSpan, CellLayout.MODE_SHOW_REORDER_HINT); 3251 3252 // Otherwise, if we aren't adding to or creating a folder and there's no pending 3253 // reorder, then we schedule a reorder 3254 ReorderAlarmListener listener = new ReorderAlarmListener(mDragViewVisualCenter, 3255 minSpanX, minSpanY, item.spanX, item.spanY, d.dragView, child); 3256 mReorderAlarm.setOnAlarmListener(listener); 3257 mReorderAlarm.setAlarm(REORDER_TIMEOUT); 3258 } 3259 3260 if (mDragMode == DRAG_MODE_CREATE_FOLDER || mDragMode == DRAG_MODE_ADD_TO_FOLDER || 3261 !nearestDropOccupied) { 3262 if (mDragTargetLayout != null) { 3263 mDragTargetLayout.revertTempState(); 3264 } 3265 } 3266 } 3267 } 3268 3269 private void manageFolderFeedback(ItemInfo info, CellLayout targetLayout, 3270 int[] targetCell, float distance, View dragOverView, boolean accessibleDrag) { 3271 boolean userFolderPending = willCreateUserFolder(info, targetLayout, targetCell, distance, 3272 false); 3273 if (mDragMode == DRAG_MODE_NONE && userFolderPending && 3274 !mFolderCreationAlarm.alarmPending()) { 3275 3276 FolderCreationAlarmListener listener = new 3277 FolderCreationAlarmListener(targetLayout, targetCell[0], targetCell[1]); 3278 3279 if (!accessibleDrag) { 3280 mFolderCreationAlarm.setOnAlarmListener(listener); 3281 mFolderCreationAlarm.setAlarm(FOLDER_CREATION_TIMEOUT); 3282 } else { 3283 listener.onAlarm(mFolderCreationAlarm); 3284 } 3285 return; 3286 } 3287 3288 boolean willAddToFolder = 3289 willAddToExistingUserFolder(info, targetLayout, targetCell, distance); 3290 3291 if (willAddToFolder && mDragMode == DRAG_MODE_NONE) { 3292 mDragOverFolderIcon = ((FolderIcon) dragOverView); 3293 mDragOverFolderIcon.onDragEnter(info); 3294 if (targetLayout != null) { 3295 targetLayout.clearDragOutlines(); 3296 } 3297 setDragMode(DRAG_MODE_ADD_TO_FOLDER); 3298 return; 3299 } 3300 3301 if (mDragMode == DRAG_MODE_ADD_TO_FOLDER && !willAddToFolder) { 3302 setDragMode(DRAG_MODE_NONE); 3303 } 3304 if (mDragMode == DRAG_MODE_CREATE_FOLDER && !userFolderPending) { 3305 setDragMode(DRAG_MODE_NONE); 3306 } 3307 3308 return; 3309 } 3310 3311 class FolderCreationAlarmListener implements OnAlarmListener { 3312 CellLayout layout; 3313 int cellX; 3314 int cellY; 3315 3316 public FolderCreationAlarmListener(CellLayout layout, int cellX, int cellY) { 3317 this.layout = layout; 3318 this.cellX = cellX; 3319 this.cellY = cellY; 3320 } 3321 3322 public void onAlarm(Alarm alarm) { 3323 if (mDragFolderRingAnimator != null) { 3324 // This shouldn't happen ever, but just in case, make sure we clean up the mess. 3325 mDragFolderRingAnimator.animateToNaturalState(); 3326 } 3327 mDragFolderRingAnimator = new FolderRingAnimator(mLauncher, null); 3328 mDragFolderRingAnimator.setCell(cellX, cellY); 3329 mDragFolderRingAnimator.setCellLayout(layout); 3330 mDragFolderRingAnimator.animateToAcceptState(); 3331 layout.showFolderAccept(mDragFolderRingAnimator); 3332 layout.clearDragOutlines(); 3333 setDragMode(DRAG_MODE_CREATE_FOLDER); 3334 } 3335 } 3336 3337 class ReorderAlarmListener implements OnAlarmListener { 3338 float[] dragViewCenter; 3339 int minSpanX, minSpanY, spanX, spanY; 3340 DragView dragView; 3341 View child; 3342 3343 public ReorderAlarmListener(float[] dragViewCenter, int minSpanX, int minSpanY, int spanX, 3344 int spanY, DragView dragView, View child) { 3345 this.dragViewCenter = dragViewCenter; 3346 this.minSpanX = minSpanX; 3347 this.minSpanY = minSpanY; 3348 this.spanX = spanX; 3349 this.spanY = spanY; 3350 this.child = child; 3351 this.dragView = dragView; 3352 } 3353 3354 public void onAlarm(Alarm alarm) { 3355 int[] resultSpan = new int[2]; 3356 mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], 3357 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, mDragTargetLayout, 3358 mTargetCell); 3359 mLastReorderX = mTargetCell[0]; 3360 mLastReorderY = mTargetCell[1]; 3361 3362 mTargetCell = mDragTargetLayout.performReorder((int) mDragViewVisualCenter[0], 3363 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, spanX, spanY, 3364 child, mTargetCell, resultSpan, CellLayout.MODE_DRAG_OVER); 3365 3366 if (mTargetCell[0] < 0 || mTargetCell[1] < 0) { 3367 mDragTargetLayout.revertTempState(); 3368 } else { 3369 setDragMode(DRAG_MODE_REORDER); 3370 } 3371 3372 boolean resize = resultSpan[0] != spanX || resultSpan[1] != spanY; 3373 mDragTargetLayout.visualizeDropLocation(child, mDragOutline, 3374 (int) mDragViewVisualCenter[0], (int) mDragViewVisualCenter[1], 3375 mTargetCell[0], mTargetCell[1], resultSpan[0], resultSpan[1], resize, 3376 dragView.getDragVisualizeOffset(), dragView.getDragRegion()); 3377 } 3378 } 3379 3380 @Override 3381 public void getHitRectRelativeToDragLayer(Rect outRect) { 3382 // We want the workspace to have the whole area of the display (it will find the correct 3383 // cell layout to drop to in the existing drag/drop logic. 3384 mLauncher.getDragLayer().getDescendantRectRelativeToSelf(this, outRect); 3385 } 3386 3387 /** 3388 * Drop an item that didn't originate on one of the workspace screens. 3389 * It may have come from Launcher (e.g. from all apps or customize), or it may have 3390 * come from another app altogether. 3391 * 3392 * NOTE: This can also be called when we are outside of a drag event, when we want 3393 * to add an item to one of the workspace screens. 3394 */ 3395 private void onDropExternal(final int[] touchXY, final ItemInfo dragInfo, 3396 final CellLayout cellLayout, boolean insertAtFirst, DragObject d) { 3397 final Runnable exitSpringLoadedRunnable = new Runnable() { 3398 @Override 3399 public void run() { 3400 mLauncher.exitSpringLoadedDragModeDelayed(true, 3401 Launcher.EXIT_SPRINGLOADED_MODE_SHORT_TIMEOUT, null); 3402 } 3403 }; 3404 3405 ItemInfo info = dragInfo; 3406 int spanX = info.spanX; 3407 int spanY = info.spanY; 3408 if (mDragInfo != null) { 3409 spanX = mDragInfo.spanX; 3410 spanY = mDragInfo.spanY; 3411 } 3412 3413 final long container = mLauncher.isHotseatLayout(cellLayout) ? 3414 LauncherSettings.Favorites.CONTAINER_HOTSEAT : 3415 LauncherSettings.Favorites.CONTAINER_DESKTOP; 3416 final long screenId = getIdForScreen(cellLayout); 3417 if (!mLauncher.isHotseatLayout(cellLayout) 3418 && screenId != getScreenIdForPageIndex(mCurrentPage) 3419 && mState != State.SPRING_LOADED) { 3420 snapToScreenId(screenId, null); 3421 } 3422 3423 if (info instanceof PendingAddItemInfo) { 3424 final PendingAddItemInfo pendingInfo = (PendingAddItemInfo) dragInfo; 3425 3426 boolean findNearestVacantCell = true; 3427 if (pendingInfo.itemType == LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT) { 3428 mTargetCell = findNearestArea((int) touchXY[0], (int) touchXY[1], spanX, spanY, 3429 cellLayout, mTargetCell); 3430 float distance = cellLayout.getDistanceFromCell(mDragViewVisualCenter[0], 3431 mDragViewVisualCenter[1], mTargetCell); 3432 if (willCreateUserFolder(d.dragInfo, cellLayout, mTargetCell, distance, true) 3433 || willAddToExistingUserFolder( 3434 d.dragInfo, cellLayout, mTargetCell, distance)) { 3435 findNearestVacantCell = false; 3436 } 3437 } 3438 3439 final ItemInfo item = d.dragInfo; 3440 boolean updateWidgetSize = false; 3441 if (findNearestVacantCell) { 3442 int minSpanX = item.spanX; 3443 int minSpanY = item.spanY; 3444 if (item.minSpanX > 0 && item.minSpanY > 0) { 3445 minSpanX = item.minSpanX; 3446 minSpanY = item.minSpanY; 3447 } 3448 int[] resultSpan = new int[2]; 3449 mTargetCell = cellLayout.performReorder((int) mDragViewVisualCenter[0], 3450 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, info.spanX, info.spanY, 3451 null, mTargetCell, resultSpan, CellLayout.MODE_ON_DROP_EXTERNAL); 3452 3453 if (resultSpan[0] != item.spanX || resultSpan[1] != item.spanY) { 3454 updateWidgetSize = true; 3455 } 3456 item.spanX = resultSpan[0]; 3457 item.spanY = resultSpan[1]; 3458 } 3459 3460 Runnable onAnimationCompleteRunnable = new Runnable() { 3461 @Override 3462 public void run() { 3463 // Normally removeExtraEmptyScreen is called in Workspace#onDragEnd, but when 3464 // adding an item that may not be dropped right away (due to a config activity) 3465 // we defer the removal until the activity returns. 3466 deferRemoveExtraEmptyScreen(); 3467 3468 // When dragging and dropping from customization tray, we deal with creating 3469 // widgets/shortcuts/folders in a slightly different way 3470 mLauncher.addPendingItem(pendingInfo, container, screenId, mTargetCell, 3471 item.spanX, item.spanY); 3472 } 3473 }; 3474 boolean isWidget = pendingInfo.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET 3475 || pendingInfo.itemType == LauncherSettings.Favorites.ITEM_TYPE_CUSTOM_APPWIDGET; 3476 3477 View finalView = isWidget ? ((PendingAddWidgetInfo) pendingInfo).boundWidget : null; 3478 3479 if (finalView instanceof AppWidgetHostView && updateWidgetSize) { 3480 AppWidgetHostView awhv = (AppWidgetHostView) finalView; 3481 AppWidgetResizeFrame.updateWidgetSizeRanges(awhv, mLauncher, item.spanX, 3482 item.spanY); 3483 } 3484 3485 int animationStyle = ANIMATE_INTO_POSITION_AND_DISAPPEAR; 3486 if (isWidget && ((PendingAddWidgetInfo) pendingInfo).info != null && 3487 ((PendingAddWidgetInfo) pendingInfo).info.configure != null) { 3488 animationStyle = ANIMATE_INTO_POSITION_AND_REMAIN; 3489 } 3490 animateWidgetDrop(info, cellLayout, d.dragView, onAnimationCompleteRunnable, 3491 animationStyle, finalView, true); 3492 } else { 3493 // This is for other drag/drop cases, like dragging from All Apps 3494 View view = null; 3495 3496 switch (info.itemType) { 3497 case LauncherSettings.Favorites.ITEM_TYPE_APPLICATION: 3498 case LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT: 3499 if (info.container == NO_ID && info instanceof AppInfo) { 3500 // Came from all apps -- make a copy 3501 info = ((AppInfo) info).makeShortcut(); 3502 } 3503 view = mLauncher.createShortcut(cellLayout, (ShortcutInfo) info); 3504 break; 3505 case LauncherSettings.Favorites.ITEM_TYPE_FOLDER: 3506 view = FolderIcon.fromXml(R.layout.folder_icon, mLauncher, cellLayout, 3507 (FolderInfo) info, mIconCache); 3508 break; 3509 default: 3510 throw new IllegalStateException("Unknown item type: " + info.itemType); 3511 } 3512 3513 // First we find the cell nearest to point at which the item is 3514 // dropped, without any consideration to whether there is an item there. 3515 if (touchXY != null) { 3516 mTargetCell = findNearestArea((int) touchXY[0], (int) touchXY[1], spanX, spanY, 3517 cellLayout, mTargetCell); 3518 float distance = cellLayout.getDistanceFromCell(mDragViewVisualCenter[0], 3519 mDragViewVisualCenter[1], mTargetCell); 3520 d.postAnimationRunnable = exitSpringLoadedRunnable; 3521 if (createUserFolderIfNecessary(view, container, cellLayout, mTargetCell, distance, 3522 true, d.dragView, d.postAnimationRunnable)) { 3523 return; 3524 } 3525 if (addToExistingFolderIfNecessary(view, cellLayout, mTargetCell, distance, d, 3526 true)) { 3527 return; 3528 } 3529 } 3530 3531 if (touchXY != null) { 3532 // when dragging and dropping, just find the closest free spot 3533 mTargetCell = cellLayout.performReorder((int) mDragViewVisualCenter[0], 3534 (int) mDragViewVisualCenter[1], 1, 1, 1, 1, 3535 null, mTargetCell, null, CellLayout.MODE_ON_DROP_EXTERNAL); 3536 } else { 3537 cellLayout.findCellForSpan(mTargetCell, 1, 1); 3538 } 3539 // Add the item to DB before adding to screen ensures that the container and other 3540 // values of the info is properly updated. 3541 LauncherModel.addOrMoveItemInDatabase(mLauncher, info, container, screenId, 3542 mTargetCell[0], mTargetCell[1]); 3543 3544 addInScreen(view, container, screenId, mTargetCell[0], mTargetCell[1], info.spanX, 3545 info.spanY, insertAtFirst); 3546 cellLayout.onDropChild(view); 3547 cellLayout.getShortcutsAndWidgets().measureChild(view); 3548 3549 if (d.dragView != null) { 3550 // We wrap the animation call in the temporary set and reset of the current 3551 // cellLayout to its final transform -- this means we animate the drag view to 3552 // the correct final location. 3553 setFinalTransitionTransform(cellLayout); 3554 mLauncher.getDragLayer().animateViewIntoPosition(d.dragView, view, 3555 exitSpringLoadedRunnable, this); 3556 resetTransitionTransform(cellLayout); 3557 } 3558 } 3559 } 3560 3561 public Bitmap createWidgetBitmap(ItemInfo widgetInfo, View layout) { 3562 int[] unScaledSize = mLauncher.getWorkspace().estimateItemSize(widgetInfo, false); 3563 int visibility = layout.getVisibility(); 3564 layout.setVisibility(VISIBLE); 3565 3566 int width = MeasureSpec.makeMeasureSpec(unScaledSize[0], MeasureSpec.EXACTLY); 3567 int height = MeasureSpec.makeMeasureSpec(unScaledSize[1], MeasureSpec.EXACTLY); 3568 Bitmap b = Bitmap.createBitmap(unScaledSize[0], unScaledSize[1], 3569 Bitmap.Config.ARGB_8888); 3570 mCanvas.setBitmap(b); 3571 3572 layout.measure(width, height); 3573 layout.layout(0, 0, unScaledSize[0], unScaledSize[1]); 3574 layout.draw(mCanvas); 3575 mCanvas.setBitmap(null); 3576 layout.setVisibility(visibility); 3577 return b; 3578 } 3579 3580 private void getFinalPositionForDropAnimation(int[] loc, float[] scaleXY, 3581 DragView dragView, CellLayout layout, ItemInfo info, int[] targetCell, 3582 boolean external, boolean scale) { 3583 // Now we animate the dragView, (ie. the widget or shortcut preview) into its final 3584 // location and size on the home screen. 3585 int spanX = info.spanX; 3586 int spanY = info.spanY; 3587 3588 Rect r = estimateItemPosition(layout, info, targetCell[0], targetCell[1], spanX, spanY); 3589 loc[0] = r.left; 3590 loc[1] = r.top; 3591 3592 setFinalTransitionTransform(layout); 3593 float cellLayoutScale = 3594 mLauncher.getDragLayer().getDescendantCoordRelativeToSelf(layout, loc, true); 3595 resetTransitionTransform(layout); 3596 3597 float dragViewScaleX; 3598 float dragViewScaleY; 3599 if (scale) { 3600 dragViewScaleX = (1.0f * r.width()) / dragView.getMeasuredWidth(); 3601 dragViewScaleY = (1.0f * r.height()) / dragView.getMeasuredHeight(); 3602 } else { 3603 dragViewScaleX = 1f; 3604 dragViewScaleY = 1f; 3605 } 3606 3607 // The animation will scale the dragView about its center, so we need to center about 3608 // the final location. 3609 loc[0] -= (dragView.getMeasuredWidth() - cellLayoutScale * r.width()) / 2; 3610 loc[1] -= (dragView.getMeasuredHeight() - cellLayoutScale * r.height()) / 2; 3611 3612 scaleXY[0] = dragViewScaleX * cellLayoutScale; 3613 scaleXY[1] = dragViewScaleY * cellLayoutScale; 3614 } 3615 3616 public void animateWidgetDrop(ItemInfo info, CellLayout cellLayout, DragView dragView, 3617 final Runnable onCompleteRunnable, int animationType, final View finalView, 3618 boolean external) { 3619 Rect from = new Rect(); 3620 mLauncher.getDragLayer().getViewRectRelativeToSelf(dragView, from); 3621 3622 int[] finalPos = new int[2]; 3623 float scaleXY[] = new float[2]; 3624 boolean scalePreview = !(info instanceof PendingAddShortcutInfo); 3625 getFinalPositionForDropAnimation(finalPos, scaleXY, dragView, cellLayout, info, mTargetCell, 3626 external, scalePreview); 3627 3628 Resources res = mLauncher.getResources(); 3629 final int duration = res.getInteger(R.integer.config_dropAnimMaxDuration) - 200; 3630 3631 // In the case where we've prebound the widget, we remove it from the DragLayer 3632 if (finalView instanceof AppWidgetHostView && external) { 3633 mLauncher.getDragLayer().removeView(finalView); 3634 } 3635 3636 boolean isWidget = info.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET || 3637 info.itemType == LauncherSettings.Favorites.ITEM_TYPE_CUSTOM_APPWIDGET; 3638 if ((animationType == ANIMATE_INTO_POSITION_AND_RESIZE || external) && finalView != null) { 3639 Bitmap crossFadeBitmap = createWidgetBitmap(info, finalView); 3640 dragView.setCrossFadeBitmap(crossFadeBitmap); 3641 dragView.crossFade((int) (duration * 0.8f)); 3642 } else if (isWidget && external) { 3643 scaleXY[0] = scaleXY[1] = Math.min(scaleXY[0], scaleXY[1]); 3644 } 3645 3646 DragLayer dragLayer = mLauncher.getDragLayer(); 3647 if (animationType == CANCEL_TWO_STAGE_WIDGET_DROP_ANIMATION) { 3648 mLauncher.getDragLayer().animateViewIntoPosition(dragView, finalPos, 0f, 0.1f, 0.1f, 3649 DragLayer.ANIMATION_END_DISAPPEAR, onCompleteRunnable, duration); 3650 } else { 3651 int endStyle; 3652 if (animationType == ANIMATE_INTO_POSITION_AND_REMAIN) { 3653 endStyle = DragLayer.ANIMATION_END_REMAIN_VISIBLE; 3654 } else { 3655 endStyle = DragLayer.ANIMATION_END_DISAPPEAR;; 3656 } 3657 3658 Runnable onComplete = new Runnable() { 3659 @Override 3660 public void run() { 3661 if (finalView != null) { 3662 finalView.setVisibility(VISIBLE); 3663 } 3664 if (onCompleteRunnable != null) { 3665 onCompleteRunnable.run(); 3666 } 3667 } 3668 }; 3669 dragLayer.animateViewIntoPosition(dragView, from.left, from.top, finalPos[0], 3670 finalPos[1], 1, 1, 1, scaleXY[0], scaleXY[1], onComplete, endStyle, 3671 duration, this); 3672 } 3673 } 3674 3675 public void setFinalTransitionTransform(CellLayout layout) { 3676 if (isSwitchingState()) { 3677 mCurrentScale = getScaleX(); 3678 setScaleX(mStateTransitionAnimation.getFinalScale()); 3679 setScaleY(mStateTransitionAnimation.getFinalScale()); 3680 } 3681 } 3682 public void resetTransitionTransform(CellLayout layout) { 3683 if (isSwitchingState()) { 3684 setScaleX(mCurrentScale); 3685 setScaleY(mCurrentScale); 3686 } 3687 } 3688 3689 /** 3690 * Return the current {@link CellLayout}, correctly picking the destination 3691 * screen while a scroll is in progress. 3692 */ 3693 public CellLayout getCurrentDropLayout() { 3694 return (CellLayout) getChildAt(getNextPage()); 3695 } 3696 3697 /** 3698 * Return the current CellInfo describing our current drag; this method exists 3699 * so that Launcher can sync this object with the correct info when the activity is created/ 3700 * destroyed 3701 * 3702 */ 3703 public CellLayout.CellInfo getDragInfo() { 3704 return mDragInfo; 3705 } 3706 3707 public int getCurrentPageOffsetFromCustomContent() { 3708 return getNextPage() - numCustomPages(); 3709 } 3710 3711 /** 3712 * Calculate the nearest cell where the given object would be dropped. 3713 * 3714 * pixelX and pixelY should be in the coordinate system of layout 3715 */ 3716 @Thunk int[] findNearestArea(int pixelX, int pixelY, 3717 int spanX, int spanY, CellLayout layout, int[] recycle) { 3718 return layout.findNearestArea( 3719 pixelX, pixelY, spanX, spanY, recycle); 3720 } 3721 3722 void setup(DragController dragController) { 3723 mSpringLoadedDragController = new SpringLoadedDragController(mLauncher); 3724 mDragController = dragController; 3725 3726 // hardware layers on children are enabled on startup, but should be disabled until 3727 // needed 3728 updateChildrenLayersEnabled(false); 3729 } 3730 3731 /** 3732 * Called at the end of a drag which originated on the workspace. 3733 */ 3734 public void onDropCompleted(final View target, final DragObject d, 3735 final boolean isFlingToDelete, final boolean success) { 3736 if (mDeferDropAfterUninstall) { 3737 mDeferredAction = new Runnable() { 3738 public void run() { 3739 onDropCompleted(target, d, isFlingToDelete, success); 3740 mDeferredAction = null; 3741 } 3742 }; 3743 return; 3744 } 3745 3746 boolean beingCalledAfterUninstall = mDeferredAction != null; 3747 3748 if (success && !(beingCalledAfterUninstall && !mUninstallSuccessful)) { 3749 if (target != this && mDragInfo != null) { 3750 removeWorkspaceItem(mDragInfo.cell); 3751 } 3752 } else if (mDragInfo != null) { 3753 final CellLayout cellLayout = mLauncher.getCellLayout( 3754 mDragInfo.container, mDragInfo.screenId); 3755 if (cellLayout != null) { 3756 cellLayout.onDropChild(mDragInfo.cell); 3757 } else if (ProviderConfig.IS_DOGFOOD_BUILD) { 3758 throw new RuntimeException("Invalid state: cellLayout == null in " 3759 + "Workspace#onDropCompleted. Please file a bug. "); 3760 }; 3761 } 3762 if ((d.cancelled || (beingCalledAfterUninstall && !mUninstallSuccessful)) 3763 && mDragInfo.cell != null) { 3764 mDragInfo.cell.setVisibility(VISIBLE); 3765 } 3766 mDragOutline = null; 3767 mDragInfo = null; 3768 } 3769 3770 /** 3771 * For opposite operation. See {@link #addInScreen}. 3772 */ 3773 public void removeWorkspaceItem(View v) { 3774 CellLayout parentCell = getParentCellLayoutForView(v); 3775 if (parentCell != null) { 3776 parentCell.removeView(v); 3777 } else if (ProviderConfig.IS_DOGFOOD_BUILD) { 3778 // When an app is uninstalled using the drop target, we wait until resume to remove 3779 // the icon. We also remove all the corresponding items from the workspace at 3780 // {@link Launcher#bindComponentsRemoved}. That call can come before or after 3781 // {@link Launcher#mOnResumeCallbacks} depending on how busy the worker thread is. 3782 Log.e(TAG, "mDragInfo.cell has null parent"); 3783 } 3784 if (v instanceof DropTarget) { 3785 mDragController.removeDropTarget((DropTarget) v); 3786 } 3787 } 3788 3789 @Override 3790 public void deferCompleteDropAfterUninstallActivity() { 3791 mDeferDropAfterUninstall = true; 3792 } 3793 3794 /// maybe move this into a smaller part 3795 @Override 3796 public void onUninstallActivityReturned(boolean success) { 3797 mDeferDropAfterUninstall = false; 3798 mUninstallSuccessful = success; 3799 if (mDeferredAction != null) { 3800 mDeferredAction.run(); 3801 } 3802 } 3803 3804 void saveWorkspaceToDb() { 3805 saveWorkspaceScreenToDb((CellLayout) mLauncher.getHotseat().getLayout()); 3806 int count = getChildCount(); 3807 for (int i = 0; i < count; i++) { 3808 CellLayout cl = (CellLayout) getChildAt(i); 3809 saveWorkspaceScreenToDb(cl); 3810 } 3811 } 3812 3813 void saveWorkspaceScreenToDb(CellLayout cl) { 3814 int count = cl.getShortcutsAndWidgets().getChildCount(); 3815 3816 long screenId = getIdForScreen(cl); 3817 int container = Favorites.CONTAINER_DESKTOP; 3818 3819 Hotseat hotseat = mLauncher.getHotseat(); 3820 if (mLauncher.isHotseatLayout(cl)) { 3821 screenId = -1; 3822 container = Favorites.CONTAINER_HOTSEAT; 3823 } 3824 3825 for (int i = 0; i < count; i++) { 3826 View v = cl.getShortcutsAndWidgets().getChildAt(i); 3827 ItemInfo info = (ItemInfo) v.getTag(); 3828 // Null check required as the AllApps button doesn't have an item info 3829 if (info != null) { 3830 int cellX = info.cellX; 3831 int cellY = info.cellY; 3832 if (container == Favorites.CONTAINER_HOTSEAT) { 3833 cellX = hotseat.getCellXFromOrder((int) info.screenId); 3834 cellY = hotseat.getCellYFromOrder((int) info.screenId); 3835 } 3836 LauncherModel.addItemToDatabase(mLauncher, info, container, screenId, cellX, cellY); 3837 } 3838 if (v instanceof FolderIcon) { 3839 FolderIcon fi = (FolderIcon) v; 3840 fi.getFolder().addItemLocationsInDatabase(); 3841 } 3842 } 3843 } 3844 3845 @Override 3846 public float getIntrinsicIconScaleFactor() { 3847 return 1f; 3848 } 3849 3850 @Override 3851 public boolean supportsFlingToDelete() { 3852 return true; 3853 } 3854 3855 @Override 3856 public boolean supportsAppInfoDropTarget() { 3857 return false; 3858 } 3859 3860 @Override 3861 public boolean supportsDeleteDropTarget() { 3862 return true; 3863 } 3864 3865 @Override 3866 public void onFlingToDelete(DragObject d, PointF vec) { 3867 // Do nothing 3868 } 3869 3870 @Override 3871 public void onFlingToDeleteCompleted() { 3872 // Do nothing 3873 } 3874 3875 public boolean isDropEnabled() { 3876 return true; 3877 } 3878 3879 @Override 3880 protected void dispatchRestoreInstanceState(SparseArray<Parcelable> container) { 3881 // We don't dispatch restoreInstanceState to our children using this code path. 3882 // Some pages will be restored immediately as their items are bound immediately, and 3883 // others we will need to wait until after their items are bound. 3884 mSavedStates = container; 3885 } 3886 3887 public void restoreInstanceStateForChild(int child) { 3888 if (mSavedStates != null) { 3889 mRestoredPages.add(child); 3890 CellLayout cl = (CellLayout) getChildAt(child); 3891 if (cl != null) { 3892 cl.restoreInstanceState(mSavedStates); 3893 } 3894 } 3895 } 3896 3897 public void restoreInstanceStateForRemainingPages() { 3898 int count = getChildCount(); 3899 for (int i = 0; i < count; i++) { 3900 if (!mRestoredPages.contains(i)) { 3901 restoreInstanceStateForChild(i); 3902 } 3903 } 3904 mRestoredPages.clear(); 3905 mSavedStates = null; 3906 } 3907 3908 @Override 3909 public void scrollLeft() { 3910 if (!workspaceInModalState() && !mIsSwitchingState) { 3911 super.scrollLeft(); 3912 } 3913 Folder openFolder = getOpenFolder(); 3914 if (openFolder != null) { 3915 openFolder.completeDragExit(); 3916 } 3917 } 3918 3919 @Override 3920 public void scrollRight() { 3921 if (!workspaceInModalState() && !mIsSwitchingState) { 3922 super.scrollRight(); 3923 } 3924 Folder openFolder = getOpenFolder(); 3925 if (openFolder != null) { 3926 openFolder.completeDragExit(); 3927 } 3928 } 3929 3930 @Override 3931 public boolean onEnterScrollArea(int x, int y, int direction) { 3932 // Ignore the scroll area if we are dragging over the hot seat 3933 boolean isPortrait = !mLauncher.getDeviceProfile().isLandscape; 3934 if (mLauncher.getHotseat() != null && isPortrait) { 3935 Rect r = new Rect(); 3936 mLauncher.getHotseat().getHitRect(r); 3937 if (r.contains(x, y)) { 3938 return false; 3939 } 3940 } 3941 3942 boolean result = false; 3943 if (!workspaceInModalState() && !mIsSwitchingState && getOpenFolder() == null) { 3944 mInScrollArea = true; 3945 3946 final int page = getNextPage() + 3947 (direction == DragController.SCROLL_LEFT ? -1 : 1); 3948 // We always want to exit the current layout to ensure parity of enter / exit 3949 setCurrentDropLayout(null); 3950 3951 if (0 <= page && page < getChildCount()) { 3952 // Ensure that we are not dragging over to the custom content screen 3953 if (getScreenIdForPageIndex(page) == CUSTOM_CONTENT_SCREEN_ID) { 3954 return false; 3955 } 3956 3957 CellLayout layout = (CellLayout) getChildAt(page); 3958 setCurrentDragOverlappingLayout(layout); 3959 3960 // Workspace is responsible for drawing the edge glow on adjacent pages, 3961 // so we need to redraw the workspace when this may have changed. 3962 invalidate(); 3963 result = true; 3964 } 3965 } 3966 return result; 3967 } 3968 3969 @Override 3970 public boolean onExitScrollArea() { 3971 boolean result = false; 3972 if (mInScrollArea) { 3973 invalidate(); 3974 CellLayout layout = getCurrentDropLayout(); 3975 setCurrentDropLayout(layout); 3976 setCurrentDragOverlappingLayout(layout); 3977 3978 result = true; 3979 mInScrollArea = false; 3980 } 3981 return result; 3982 } 3983 3984 private void onResetScrollArea() { 3985 setCurrentDragOverlappingLayout(null); 3986 mInScrollArea = false; 3987 } 3988 3989 /** 3990 * Returns a specific CellLayout 3991 */ 3992 CellLayout getParentCellLayoutForView(View v) { 3993 ArrayList<CellLayout> layouts = getWorkspaceAndHotseatCellLayouts(); 3994 for (CellLayout layout : layouts) { 3995 if (layout.getShortcutsAndWidgets().indexOfChild(v) > -1) { 3996 return layout; 3997 } 3998 } 3999 return null; 4000 } 4001 4002 /** 4003 * Returns a list of all the CellLayouts in the workspace. 4004 */ 4005 ArrayList<CellLayout> getWorkspaceAndHotseatCellLayouts() { 4006 ArrayList<CellLayout> layouts = new ArrayList<CellLayout>(); 4007 int screenCount = getChildCount(); 4008 for (int screen = 0; screen < screenCount; screen++) { 4009 layouts.add(((CellLayout) getChildAt(screen))); 4010 } 4011 if (mLauncher.getHotseat() != null) { 4012 layouts.add(mLauncher.getHotseat().getLayout()); 4013 } 4014 return layouts; 4015 } 4016 4017 /** 4018 * We should only use this to search for specific children. Do not use this method to modify 4019 * ShortcutsAndWidgetsContainer directly. Includes ShortcutAndWidgetContainers from 4020 * the hotseat and workspace pages 4021 */ 4022 ArrayList<ShortcutAndWidgetContainer> getAllShortcutAndWidgetContainers() { 4023 ArrayList<ShortcutAndWidgetContainer> childrenLayouts = 4024 new ArrayList<ShortcutAndWidgetContainer>(); 4025 int screenCount = getChildCount(); 4026 for (int screen = 0; screen < screenCount; screen++) { 4027 childrenLayouts.add(((CellLayout) getChildAt(screen)).getShortcutsAndWidgets()); 4028 } 4029 if (mLauncher.getHotseat() != null) { 4030 childrenLayouts.add(mLauncher.getHotseat().getLayout().getShortcutsAndWidgets()); 4031 } 4032 return childrenLayouts; 4033 } 4034 4035 public Folder getFolderForTag(final Object tag) { 4036 return (Folder) getFirstMatch(new ItemOperator() { 4037 4038 @Override 4039 public boolean evaluate(ItemInfo info, View v, View parent) { 4040 return (v instanceof Folder) && (((Folder) v).getInfo() == tag) 4041 && ((Folder) v).getInfo().opened; 4042 } 4043 }); 4044 } 4045 4046 public View getHomescreenIconByItemId(final long id) { 4047 return getFirstMatch(new ItemOperator() { 4048 4049 @Override 4050 public boolean evaluate(ItemInfo info, View v, View parent) { 4051 return info.id == id; 4052 } 4053 }); 4054 } 4055 4056 public View getViewForTag(final Object tag) { 4057 return getFirstMatch(new ItemOperator() { 4058 4059 @Override 4060 public boolean evaluate(ItemInfo info, View v, View parent) { 4061 return info == tag; 4062 } 4063 }); 4064 } 4065 4066 public LauncherAppWidgetHostView getWidgetForAppWidgetId(final int appWidgetId) { 4067 return (LauncherAppWidgetHostView) getFirstMatch(new ItemOperator() { 4068 4069 @Override 4070 public boolean evaluate(ItemInfo info, View v, View parent) { 4071 return (info instanceof LauncherAppWidgetInfo) && 4072 ((LauncherAppWidgetInfo) info).appWidgetId == appWidgetId; 4073 } 4074 }); 4075 } 4076 4077 private View getFirstMatch(final ItemOperator operator) { 4078 final View[] value = new View[1]; 4079 mapOverItems(MAP_NO_RECURSE, new ItemOperator() { 4080 @Override 4081 public boolean evaluate(ItemInfo info, View v, View parent) { 4082 if (operator.evaluate(info, v, parent)) { 4083 value[0] = v; 4084 return true; 4085 } 4086 return false; 4087 } 4088 }); 4089 return value[0]; 4090 } 4091 4092 void clearDropTargets() { 4093 mapOverItems(MAP_NO_RECURSE, new ItemOperator() { 4094 @Override 4095 public boolean evaluate(ItemInfo info, View v, View parent) { 4096 if (v instanceof DropTarget) { 4097 mDragController.removeDropTarget((DropTarget) v); 4098 } 4099 // not done, process all the shortcuts 4100 return false; 4101 } 4102 }); 4103 } 4104 4105 public void disableShortcutsByPackageName(final ArrayList<String> packages, 4106 final UserHandleCompat user, final int reason) { 4107 final HashSet<String> packageNames = new HashSet<String>(); 4108 packageNames.addAll(packages); 4109 4110 mapOverItems(MAP_RECURSE, new ItemOperator() { 4111 @Override 4112 public boolean evaluate(ItemInfo info, View v, View parent) { 4113 if (info instanceof ShortcutInfo && v instanceof BubbleTextView) { 4114 ShortcutInfo shortcutInfo = (ShortcutInfo) info; 4115 ComponentName cn = shortcutInfo.getTargetComponent(); 4116 if (user.equals(shortcutInfo.user) && cn != null 4117 && packageNames.contains(cn.getPackageName())) { 4118 shortcutInfo.isDisabled |= reason; 4119 BubbleTextView shortcut = (BubbleTextView) v; 4120 shortcut.applyFromShortcutInfo(shortcutInfo, mIconCache); 4121 4122 if (parent != null) { 4123 parent.invalidate(); 4124 } 4125 } 4126 } 4127 // process all the shortcuts 4128 return false; 4129 } 4130 }); 4131 } 4132 4133 // Removes ALL items that match a given package name, this is usually called when a package 4134 // has been removed and we want to remove all components (widgets, shortcuts, apps) that 4135 // belong to that package. 4136 void removeItemsByPackageName(final ArrayList<String> packages, final UserHandleCompat user) { 4137 final HashSet<String> packageNames = new HashSet<String>(); 4138 packageNames.addAll(packages); 4139 4140 // Filter out all the ItemInfos that this is going to affect 4141 final HashSet<ItemInfo> infos = new HashSet<ItemInfo>(); 4142 final HashSet<ComponentName> cns = new HashSet<ComponentName>(); 4143 ArrayList<CellLayout> cellLayouts = getWorkspaceAndHotseatCellLayouts(); 4144 for (CellLayout layoutParent : cellLayouts) { 4145 ViewGroup layout = layoutParent.getShortcutsAndWidgets(); 4146 int childCount = layout.getChildCount(); 4147 for (int i = 0; i < childCount; ++i) { 4148 View view = layout.getChildAt(i); 4149 infos.add((ItemInfo) view.getTag()); 4150 } 4151 } 4152 LauncherModel.ItemInfoFilter filter = new LauncherModel.ItemInfoFilter() { 4153 @Override 4154 public boolean filterItem(ItemInfo parent, ItemInfo info, 4155 ComponentName cn) { 4156 if (packageNames.contains(cn.getPackageName()) 4157 && info.user.equals(user)) { 4158 cns.add(cn); 4159 return true; 4160 } 4161 return false; 4162 } 4163 }; 4164 LauncherModel.filterItemInfos(infos, filter); 4165 4166 // Remove the affected components 4167 removeItemsByComponentName(cns, user); 4168 } 4169 4170 /** 4171 * Removes items that match the item info specified. When applications are removed 4172 * as a part of an update, this is called to ensure that other widgets and application 4173 * shortcuts are not removed. 4174 */ 4175 void removeItemsByComponentName(final HashSet<ComponentName> componentNames, 4176 final UserHandleCompat user) { 4177 ArrayList<CellLayout> cellLayouts = getWorkspaceAndHotseatCellLayouts(); 4178 for (final CellLayout layoutParent: cellLayouts) { 4179 final ViewGroup layout = layoutParent.getShortcutsAndWidgets(); 4180 4181 final HashMap<ItemInfo, View> children = new HashMap<ItemInfo, View>(); 4182 for (int j = 0; j < layout.getChildCount(); j++) { 4183 final View view = layout.getChildAt(j); 4184 children.put((ItemInfo) view.getTag(), view); 4185 } 4186 4187 final ArrayList<View> childrenToRemove = new ArrayList<View>(); 4188 final HashMap<FolderInfo, ArrayList<ShortcutInfo>> folderAppsToRemove = 4189 new HashMap<FolderInfo, ArrayList<ShortcutInfo>>(); 4190 LauncherModel.ItemInfoFilter filter = new LauncherModel.ItemInfoFilter() { 4191 @Override 4192 public boolean filterItem(ItemInfo parent, ItemInfo info, 4193 ComponentName cn) { 4194 if (parent instanceof FolderInfo) { 4195 if (componentNames.contains(cn) && info.user.equals(user)) { 4196 FolderInfo folder = (FolderInfo) parent; 4197 ArrayList<ShortcutInfo> appsToRemove; 4198 if (folderAppsToRemove.containsKey(folder)) { 4199 appsToRemove = folderAppsToRemove.get(folder); 4200 } else { 4201 appsToRemove = new ArrayList<ShortcutInfo>(); 4202 folderAppsToRemove.put(folder, appsToRemove); 4203 } 4204 appsToRemove.add((ShortcutInfo) info); 4205 return true; 4206 } 4207 } else { 4208 if (componentNames.contains(cn) && info.user.equals(user)) { 4209 childrenToRemove.add(children.get(info)); 4210 return true; 4211 } 4212 } 4213 return false; 4214 } 4215 }; 4216 LauncherModel.filterItemInfos(children.keySet(), filter); 4217 4218 // Remove all the apps from their folders 4219 for (FolderInfo folder : folderAppsToRemove.keySet()) { 4220 ArrayList<ShortcutInfo> appsToRemove = folderAppsToRemove.get(folder); 4221 for (ShortcutInfo info : appsToRemove) { 4222 folder.remove(info); 4223 } 4224 } 4225 4226 // Remove all the other children 4227 for (View child : childrenToRemove) { 4228 // Note: We can not remove the view directly from CellLayoutChildren as this 4229 // does not re-mark the spaces as unoccupied. 4230 layoutParent.removeViewInLayout(child); 4231 if (child instanceof DropTarget) { 4232 mDragController.removeDropTarget((DropTarget) child); 4233 } 4234 } 4235 4236 if (childrenToRemove.size() > 0) { 4237 layout.requestLayout(); 4238 layout.invalidate(); 4239 } 4240 } 4241 4242 // Strip all the empty screens 4243 stripEmptyScreens(); 4244 } 4245 4246 interface ItemOperator { 4247 /** 4248 * Process the next itemInfo, possibly with side-effect on {@link ItemOperator#value}. 4249 * 4250 * @param info info for the shortcut 4251 * @param view view for the shortcut 4252 * @param parent containing folder, or null 4253 * @return true if done, false to continue the map 4254 */ 4255 public boolean evaluate(ItemInfo info, View view, View parent); 4256 } 4257 4258 /** 4259 * Map the operator over the shortcuts and widgets, return the first-non-null value. 4260 * 4261 * @param recurse true: iterate over folder children. false: op get the folders themselves. 4262 * @param op the operator to map over the shortcuts 4263 */ 4264 void mapOverItems(boolean recurse, ItemOperator op) { 4265 ArrayList<ShortcutAndWidgetContainer> containers = getAllShortcutAndWidgetContainers(); 4266 final int containerCount = containers.size(); 4267 for (int containerIdx = 0; containerIdx < containerCount; containerIdx++) { 4268 ShortcutAndWidgetContainer container = containers.get(containerIdx); 4269 // map over all the shortcuts on the workspace 4270 final int itemCount = container.getChildCount(); 4271 for (int itemIdx = 0; itemIdx < itemCount; itemIdx++) { 4272 View item = container.getChildAt(itemIdx); 4273 ItemInfo info = (ItemInfo) item.getTag(); 4274 if (recurse && info instanceof FolderInfo && item instanceof FolderIcon) { 4275 FolderIcon folder = (FolderIcon) item; 4276 ArrayList<View> folderChildren = folder.getFolder().getItemsInReadingOrder(); 4277 // map over all the children in the folder 4278 final int childCount = folderChildren.size(); 4279 for (int childIdx = 0; childIdx < childCount; childIdx++) { 4280 View child = folderChildren.get(childIdx); 4281 info = (ItemInfo) child.getTag(); 4282 if (op.evaluate(info, child, folder)) { 4283 return; 4284 } 4285 } 4286 } else { 4287 if (op.evaluate(info, item, null)) { 4288 return; 4289 } 4290 } 4291 } 4292 } 4293 } 4294 4295 void updateShortcuts(ArrayList<ShortcutInfo> shortcuts) { 4296 final HashSet<ShortcutInfo> updates = new HashSet<ShortcutInfo>(shortcuts); 4297 mapOverItems(MAP_RECURSE, new ItemOperator() { 4298 @Override 4299 public boolean evaluate(ItemInfo info, View v, View parent) { 4300 if (info instanceof ShortcutInfo && v instanceof BubbleTextView && 4301 updates.contains(info)) { 4302 ShortcutInfo si = (ShortcutInfo) info; 4303 BubbleTextView shortcut = (BubbleTextView) v; 4304 Drawable oldIcon = getTextViewIcon(shortcut); 4305 boolean oldPromiseState = (oldIcon instanceof PreloadIconDrawable) 4306 && ((PreloadIconDrawable) oldIcon).hasNotCompleted(); 4307 shortcut.applyFromShortcutInfo(si, mIconCache, 4308 si.isPromise() != oldPromiseState); 4309 4310 if (parent != null) { 4311 parent.invalidate(); 4312 } 4313 } 4314 // process all the shortcuts 4315 return false; 4316 } 4317 }); 4318 } 4319 4320 public void removeAbandonedPromise(String packageName, UserHandleCompat user) { 4321 ArrayList<String> packages = new ArrayList<String>(1); 4322 packages.add(packageName); 4323 LauncherModel.deletePackageFromDatabase(mLauncher, packageName, user); 4324 removeItemsByPackageName(packages, user); 4325 } 4326 4327 public void updateRestoreItems(final HashSet<ItemInfo> updates) { 4328 mapOverItems(MAP_RECURSE, new ItemOperator() { 4329 @Override 4330 public boolean evaluate(ItemInfo info, View v, View parent) { 4331 if (info instanceof ShortcutInfo && v instanceof BubbleTextView 4332 && updates.contains(info)) { 4333 ((BubbleTextView) v).applyState(false); 4334 } else if (v instanceof PendingAppWidgetHostView 4335 && info instanceof LauncherAppWidgetInfo 4336 && updates.contains(info)) { 4337 ((PendingAppWidgetHostView) v).applyState(); 4338 } 4339 // process all the shortcuts 4340 return false; 4341 } 4342 }); 4343 } 4344 4345 void widgetsRestored(ArrayList<LauncherAppWidgetInfo> changedInfo) { 4346 if (!changedInfo.isEmpty()) { 4347 DeferredWidgetRefresh widgetRefresh = new DeferredWidgetRefresh(changedInfo, 4348 mLauncher.getAppWidgetHost()); 4349 if (LauncherModel.getProviderInfo(getContext(), 4350 changedInfo.get(0).providerName, 4351 changedInfo.get(0).user) != null) { 4352 // Re-inflate the widgets which have changed status 4353 widgetRefresh.run(); 4354 } else { 4355 // widgetRefresh will automatically run when the packages are updated. 4356 // For now just update the progress bars 4357 for (LauncherAppWidgetInfo info : changedInfo) { 4358 if (info.hostView instanceof PendingAppWidgetHostView) { 4359 info.installProgress = 100; 4360 ((PendingAppWidgetHostView) info.hostView).applyState(); 4361 } 4362 } 4363 } 4364 } 4365 } 4366 4367 private void moveToScreen(int page, boolean animate) { 4368 if (!workspaceInModalState()) { 4369 if (animate) { 4370 snapToPage(page); 4371 } else { 4372 setCurrentPage(page); 4373 } 4374 } 4375 View child = getChildAt(page); 4376 if (child != null) { 4377 child.requestFocus(); 4378 } 4379 } 4380 4381 void moveToDefaultScreen(boolean animate) { 4382 moveToScreen(mDefaultPage, animate); 4383 } 4384 4385 void moveToCustomContentScreen(boolean animate) { 4386 if (hasCustomContent()) { 4387 int ccIndex = getPageIndexForScreenId(CUSTOM_CONTENT_SCREEN_ID); 4388 if (animate) { 4389 snapToPage(ccIndex); 4390 } else { 4391 setCurrentPage(ccIndex); 4392 } 4393 View child = getChildAt(ccIndex); 4394 if (child != null) { 4395 child.requestFocus(); 4396 } 4397 } 4398 exitWidgetResizeMode(); 4399 } 4400 4401 @Override 4402 protected PageIndicator.PageMarkerResources getPageIndicatorMarker(int pageIndex) { 4403 long screenId = getScreenIdForPageIndex(pageIndex); 4404 if (screenId == EXTRA_EMPTY_SCREEN_ID) { 4405 int count = mScreenOrder.size() - numCustomPages(); 4406 if (count > 1) { 4407 return new PageIndicator.PageMarkerResources(R.drawable.ic_pageindicator_current, 4408 R.drawable.ic_pageindicator_add); 4409 } 4410 } 4411 4412 return super.getPageIndicatorMarker(pageIndex); 4413 } 4414 4415 protected String getPageIndicatorDescription() { 4416 String settings = getResources().getString(R.string.settings_button_text); 4417 return getCurrentPageDescription() + ", " + settings; 4418 } 4419 4420 protected String getCurrentPageDescription() { 4421 if (hasCustomContent() && getNextPage() == 0) { 4422 return mCustomContentDescription; 4423 } 4424 int page = (mNextPage != INVALID_PAGE) ? mNextPage : mCurrentPage; 4425 return getPageDescription(page); 4426 } 4427 4428 private String getPageDescription(int page) { 4429 int delta = numCustomPages(); 4430 return String.format(getContext().getString(R.string.workspace_scroll_format), 4431 page + 1 - delta, getChildCount() - delta); 4432 } 4433 4434 public void getLocationInDragLayer(int[] loc) { 4435 mLauncher.getDragLayer().getLocationInDragLayer(this, loc); 4436 } 4437 4438 @Override 4439 public void fillInLaunchSourceData(Bundle sourceData) { 4440 sourceData.putString(Stats.SOURCE_EXTRA_CONTAINER, Stats.CONTAINER_HOMESCREEN); 4441 sourceData.putInt(Stats.SOURCE_EXTRA_CONTAINER_PAGE, getCurrentPage()); 4442 } 4443 4444 /** 4445 * Used as a workaround to ensure that the AppWidgetService receives the 4446 * PACKAGE_ADDED broadcast before updating widgets. 4447 */ 4448 private class DeferredWidgetRefresh implements Runnable { 4449 private final ArrayList<LauncherAppWidgetInfo> mInfos; 4450 private final LauncherAppWidgetHost mHost; 4451 private final Handler mHandler; 4452 4453 private boolean mRefreshPending; 4454 4455 public DeferredWidgetRefresh(ArrayList<LauncherAppWidgetInfo> infos, 4456 LauncherAppWidgetHost host) { 4457 mInfos = infos; 4458 mHost = host; 4459 mHandler = new Handler(); 4460 mRefreshPending = true; 4461 4462 mHost.addProviderChangeListener(this); 4463 // Force refresh after 10 seconds, if we don't get the provider changed event. 4464 // This could happen when the provider is no longer available in the app. 4465 mHandler.postDelayed(this, 10000); 4466 } 4467 4468 @Override 4469 public void run() { 4470 mHost.removeProviderChangeListener(this); 4471 mHandler.removeCallbacks(this); 4472 4473 if (!mRefreshPending) { 4474 return; 4475 } 4476 4477 mRefreshPending = false; 4478 4479 for (LauncherAppWidgetInfo info : mInfos) { 4480 if (info.hostView instanceof PendingAppWidgetHostView) { 4481 PendingAppWidgetHostView view = (PendingAppWidgetHostView) info.hostView; 4482 mLauncher.removeAppWidget(info); 4483 4484 CellLayout cl = (CellLayout) view.getParent().getParent(); 4485 // Remove the current widget 4486 cl.removeView(view); 4487 mLauncher.bindAppWidget(info); 4488 } 4489 } 4490 } 4491 } 4492} 4493