Workspace.java revision 7af0d4474fe811b66db67f358ee0b5ef84b97a18
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.Handler; 46import android.os.IBinder; 47import android.os.Parcelable; 48import android.util.AttributeSet; 49import android.util.Log; 50import android.util.SparseArray; 51import android.view.Choreographer; 52import android.view.Display; 53import android.view.MotionEvent; 54import android.view.View; 55import android.view.ViewGroup; 56import android.view.accessibility.AccessibilityManager; 57import android.view.animation.DecelerateInterpolator; 58import android.view.animation.Interpolator; 59import android.widget.TextView; 60 61import com.android.launcher3.FolderIcon.FolderRingAnimator; 62import com.android.launcher3.Launcher.CustomContentCallbacks; 63import com.android.launcher3.Launcher.LauncherOverlay; 64import com.android.launcher3.LauncherSettings.Favorites; 65import com.android.launcher3.UninstallDropTarget.UninstallSource; 66import com.android.launcher3.accessibility.LauncherAccessibilityDelegate; 67import com.android.launcher3.accessibility.OverviewScreenAccessibilityDelegate; 68import com.android.launcher3.accessibility.LauncherAccessibilityDelegate.AccessibilityDragSource; 69import com.android.launcher3.compat.UserHandleCompat; 70import com.android.launcher3.util.LongArrayMap; 71import com.android.launcher3.util.Thunk; 72import com.android.launcher3.util.WallpaperUtils; 73import com.android.launcher3.widget.PendingAddShortcutInfo; 74import com.android.launcher3.widget.PendingAddWidgetInfo; 75 76import java.util.ArrayList; 77import java.util.HashMap; 78import java.util.HashSet; 79import java.util.concurrent.atomic.AtomicInteger; 80 81/** 82 * The workspace is a wide area with a wallpaper and a finite number of pages. 83 * Each page contains a number of icons, folders or widgets the user can 84 * interact with. A workspace is meant to be used with a fixed width only. 85 */ 86public class Workspace extends SmoothPagedView 87 implements DropTarget, DragSource, DragScroller, View.OnTouchListener, 88 DragController.DragListener, LauncherTransitionable, ViewGroup.OnHierarchyChangeListener, 89 Insettable, UninstallSource, AccessibilityDragSource { 90 private static final String TAG = "Launcher.Workspace"; 91 92 protected static final int SNAP_OFF_EMPTY_SCREEN_DURATION = 400; 93 protected static final int FADE_EMPTY_SCREEN_DURATION = 150; 94 95 private static final int ADJACENT_SCREEN_DROP_DURATION = 300; 96 97 static final boolean MAP_NO_RECURSE = false; 98 static final boolean MAP_RECURSE = true; 99 100 private static final long CUSTOM_CONTENT_GESTURE_DELAY = 200; 101 private long mTouchDownTime = -1; 102 private long mCustomContentShowTime = -1; 103 104 private LayoutTransition mLayoutTransition; 105 @Thunk final WallpaperManager mWallpaperManager; 106 @Thunk IBinder mWindowToken; 107 108 private int mOriginalDefaultPage; 109 private int mDefaultPage; 110 111 private ShortcutAndWidgetContainer mDragSourceInternal; 112 113 // The screen id used for the empty screen always present to the right. 114 final static long EXTRA_EMPTY_SCREEN_ID = -201; 115 private final static long CUSTOM_CONTENT_SCREEN_ID = -301; 116 117 @Thunk LongArrayMap<CellLayout> mWorkspaceScreens = new LongArrayMap<>(); 118 @Thunk ArrayList<Long> mScreenOrder = new ArrayList<Long>(); 119 120 @Thunk Runnable mRemoveEmptyScreenRunnable; 121 @Thunk boolean mDeferRemoveExtraEmptyScreen = false; 122 @Thunk boolean mAddNewPageOnDrag = true; 123 124 /** 125 * CellInfo for the cell that is currently being dragged 126 */ 127 private CellLayout.CellInfo mDragInfo; 128 129 /** 130 * Target drop area calculated during last acceptDrop call. 131 */ 132 @Thunk int[] mTargetCell = new int[2]; 133 private int mDragOverX = -1; 134 private int mDragOverY = -1; 135 136 static Rect mLandscapeCellLayoutMetrics = null; 137 static Rect mPortraitCellLayoutMetrics = null; 138 139 CustomContentCallbacks mCustomContentCallbacks; 140 boolean mCustomContentShowing; 141 private float mLastCustomContentScrollProgress = -1f; 142 private String mCustomContentDescription = ""; 143 144 /** 145 * The CellLayout that is currently being dragged over 146 */ 147 @Thunk CellLayout mDragTargetLayout = null; 148 /** 149 * The CellLayout that we will show as glowing 150 */ 151 private CellLayout mDragOverlappingLayout = null; 152 153 /** 154 * The CellLayout which will be dropped to 155 */ 156 private CellLayout mDropToLayout = null; 157 158 @Thunk Launcher mLauncher; 159 @Thunk IconCache mIconCache; 160 @Thunk DragController mDragController; 161 162 // These are temporary variables to prevent having to allocate a new object just to 163 // return an (x, y) value from helper functions. Do NOT use them to maintain other state. 164 private int[] mTempCell = new int[2]; 165 private int[] mTempPt = new int[2]; 166 private int[] mTempEstimate = new int[2]; 167 @Thunk float[] mDragViewVisualCenter = new float[2]; 168 private float[] mTempCellLayoutCenterCoordinates = new float[2]; 169 private Matrix mTempInverseMatrix = new Matrix(); 170 171 private SpringLoadedDragController mSpringLoadedDragController; 172 private float mSpringLoadedShrinkFactor; 173 private float mOverviewModeShrinkFactor; 174 175 // State variable that indicates whether the pages are small (ie when you're 176 // in all apps or customize mode) 177 178 enum State { NORMAL, NORMAL_HIDDEN, SPRING_LOADED, OVERVIEW, OVERVIEW_HIDDEN}; 179 private State mState = State.NORMAL; 180 private boolean mIsSwitchingState = false; 181 182 boolean mAnimatingViewIntoPlace = false; 183 boolean mIsDragOccuring = false; 184 boolean mChildrenLayersEnabled = true; 185 186 private boolean mStripScreensOnPageStopMoving = false; 187 188 /** Is the user is dragging an item near the edge of a page? */ 189 private boolean mInScrollArea = false; 190 191 private HolographicOutlineHelper mOutlineHelper; 192 @Thunk Bitmap mDragOutline = null; 193 private static final Rect sTempRect = new Rect(); 194 private final int[] mTempXY = new int[2]; 195 private int[] mTempVisiblePagesRange = new int[2]; 196 private boolean mOverscrollEffectSet; 197 public static final int DRAG_BITMAP_PADDING = 2; 198 private boolean mWorkspaceFadeInAdjacentScreens; 199 200 WallpaperOffsetInterpolator mWallpaperOffset; 201 @Thunk boolean mWallpaperIsLiveWallpaper; 202 @Thunk int mNumPagesForWallpaperParallax; 203 @Thunk float mLastSetWallpaperOffsetSteps = 0; 204 205 @Thunk Runnable mDelayedResizeRunnable; 206 private Runnable mDelayedSnapToPageRunnable; 207 private Point mDisplaySize = new Point(); 208 209 // Variables relating to the creation of user folders by hovering shortcuts over shortcuts 210 private static final int FOLDER_CREATION_TIMEOUT = 0; 211 public static final int REORDER_TIMEOUT = 350; 212 private final Alarm mFolderCreationAlarm = new Alarm(); 213 private final Alarm mReorderAlarm = new Alarm(); 214 @Thunk FolderRingAnimator mDragFolderRingAnimator = null; 215 private FolderIcon mDragOverFolderIcon = null; 216 private boolean mCreateUserFolderOnDrop = false; 217 private boolean mAddToExistingFolderOnDrop = false; 218 private DropTarget.DragEnforcer mDragEnforcer; 219 private float mMaxDistanceForFolderCreation; 220 221 private final Canvas mCanvas = new Canvas(); 222 223 // Variables relating to touch disambiguation (scrolling workspace vs. scrolling a widget) 224 private float mXDown; 225 private float mYDown; 226 final static float START_DAMPING_TOUCH_SLOP_ANGLE = (float) Math.PI / 6; 227 final static float MAX_SWIPE_ANGLE = (float) Math.PI / 3; 228 final static float TOUCH_SLOP_DAMPING_FACTOR = 4; 229 230 // Relating to the animation of items being dropped externally 231 public static final int ANIMATE_INTO_POSITION_AND_DISAPPEAR = 0; 232 public static final int ANIMATE_INTO_POSITION_AND_REMAIN = 1; 233 public static final int ANIMATE_INTO_POSITION_AND_RESIZE = 2; 234 public static final int COMPLETE_TWO_STAGE_WIDGET_DROP_ANIMATION = 3; 235 public static final int CANCEL_TWO_STAGE_WIDGET_DROP_ANIMATION = 4; 236 237 // Related to dragging, folder creation and reordering 238 private static final int DRAG_MODE_NONE = 0; 239 private static final int DRAG_MODE_CREATE_FOLDER = 1; 240 private static final int DRAG_MODE_ADD_TO_FOLDER = 2; 241 private static final int DRAG_MODE_REORDER = 3; 242 private int mDragMode = DRAG_MODE_NONE; 243 @Thunk int mLastReorderX = -1; 244 @Thunk int mLastReorderY = -1; 245 246 private SparseArray<Parcelable> mSavedStates; 247 private final ArrayList<Integer> mRestoredPages = new ArrayList<Integer>(); 248 249 // These variables are used for storing the initial and final values during workspace animations 250 private int mSavedScrollX; 251 private float mSavedRotationY; 252 private float mSavedTranslationX; 253 254 private float mCurrentScale; 255 private float mTransitionProgress; 256 257 float mOverScrollEffect = 0f; 258 259 @Thunk Runnable mDeferredAction; 260 private boolean mDeferDropAfterUninstall; 261 private boolean mUninstallSuccessful; 262 263 // State related to Launcher Overlay 264 LauncherOverlay mLauncherOverlay; 265 boolean mScrollInteractionBegan; 266 boolean mStartedSendingScrollEvents; 267 boolean mShouldSendPageSettled; 268 int mLastOverlaySroll = 0; 269 270 // Handles workspace state transitions 271 private WorkspaceStateTransitionAnimation mStateTransitionAnimation; 272 273 private AccessibilityDelegate mPagesAccessibilityDelegate; 274 275 private final Runnable mBindPages = new Runnable() { 276 @Override 277 public void run() { 278 mLauncher.getModel().bindRemainingSynchronousPages(); 279 } 280 }; 281 282 /** 283 * Used to inflate the Workspace from XML. 284 * 285 * @param context The application's context. 286 * @param attrs The attributes set containing the Workspace's customization values. 287 */ 288 public Workspace(Context context, AttributeSet attrs) { 289 this(context, attrs, 0); 290 } 291 292 /** 293 * Used to inflate the Workspace from XML. 294 * 295 * @param context The application's context. 296 * @param attrs The attributes set containing the Workspace's customization values. 297 * @param defStyle Unused. 298 */ 299 public Workspace(Context context, AttributeSet attrs, int defStyle) { 300 super(context, attrs, defStyle); 301 302 mOutlineHelper = HolographicOutlineHelper.obtain(context); 303 304 mDragEnforcer = new DropTarget.DragEnforcer(context); 305 // With workspace, data is available straight from the get-go 306 307 mLauncher = (Launcher) context; 308 mStateTransitionAnimation = new WorkspaceStateTransitionAnimation(mLauncher, this); 309 final Resources res = getResources(); 310 DeviceProfile grid = mLauncher.getDeviceProfile(); 311 mWorkspaceFadeInAdjacentScreens = grid.shouldFadeAdjacentWorkspaceScreens(); 312 mFadeInAdjacentScreens = false; 313 mWallpaperManager = WallpaperManager.getInstance(context); 314 315 TypedArray a = context.obtainStyledAttributes(attrs, 316 R.styleable.Workspace, defStyle, 0); 317 mSpringLoadedShrinkFactor = 318 res.getInteger(R.integer.config_workspaceSpringLoadShrinkPercentage) / 100.0f; 319 mOverviewModeShrinkFactor = grid.getOverviewModeScale(mIsRtl); 320 mOriginalDefaultPage = mDefaultPage = a.getInt(R.styleable.Workspace_defaultScreen, 1); 321 a.recycle(); 322 323 setOnHierarchyChangeListener(this); 324 setHapticFeedbackEnabled(false); 325 326 initWorkspace(); 327 328 // Disable multitouch across the workspace/all apps/customize tray 329 setMotionEventSplittingEnabled(true); 330 } 331 332 @Override 333 public void setInsets(Rect insets) { 334 mInsets.set(insets); 335 336 CellLayout customScreen = getScreenWithId(CUSTOM_CONTENT_SCREEN_ID); 337 if (customScreen != null) { 338 View customContent = customScreen.getShortcutsAndWidgets().getChildAt(0); 339 if (customContent instanceof Insettable) { 340 ((Insettable) customContent).setInsets(mInsets); 341 } 342 } 343 } 344 345 // estimate the size of a widget with spans hSpan, vSpan. return MAX_VALUE for each 346 // dimension if unsuccessful 347 public int[] estimateItemSize(ItemInfo itemInfo, boolean springLoaded) { 348 int[] size = new int[2]; 349 if (getChildCount() > 0) { 350 // Use the first non-custom page to estimate the child position 351 CellLayout cl = (CellLayout) getChildAt(numCustomPages()); 352 Rect r = estimateItemPosition(cl, itemInfo, 0, 0, itemInfo.spanX, itemInfo.spanY); 353 size[0] = r.width(); 354 size[1] = r.height(); 355 if (springLoaded) { 356 size[0] *= mSpringLoadedShrinkFactor; 357 size[1] *= mSpringLoadedShrinkFactor; 358 } 359 return size; 360 } else { 361 size[0] = Integer.MAX_VALUE; 362 size[1] = Integer.MAX_VALUE; 363 return size; 364 } 365 } 366 367 public Rect estimateItemPosition(CellLayout cl, ItemInfo pendingInfo, 368 int hCell, int vCell, int hSpan, int vSpan) { 369 Rect r = new Rect(); 370 cl.cellToRect(hCell, vCell, hSpan, vSpan, r); 371 return r; 372 } 373 374 public void onDragStart(final DragSource source, Object info, int dragAction) { 375 mIsDragOccuring = true; 376 updateChildrenLayersEnabled(false); 377 mLauncher.lockScreenOrientation(); 378 mLauncher.onInteractionBegin(); 379 // Prevent any Un/InstallShortcutReceivers from updating the db while we are dragging 380 InstallShortcutReceiver.enableInstallQueue(); 381 post(new Runnable() { 382 @Override 383 public void run() { 384 if (mIsDragOccuring && mAddNewPageOnDrag) { 385 mDeferRemoveExtraEmptyScreen = false; 386 addExtraEmptyScreenOnDrag(); 387 } 388 } 389 }); 390 } 391 392 public void setAddNewPageOnDrag(boolean addPage) { 393 mAddNewPageOnDrag = addPage; 394 } 395 396 public void deferRemoveExtraEmptyScreen() { 397 mDeferRemoveExtraEmptyScreen = true; 398 } 399 400 public void onDragEnd() { 401 if (!mDeferRemoveExtraEmptyScreen) { 402 removeExtraEmptyScreen(true, mDragSourceInternal != null); 403 } 404 405 mIsDragOccuring = false; 406 updateChildrenLayersEnabled(false); 407 mLauncher.unlockScreenOrientation(false); 408 409 // Re-enable any Un/InstallShortcutReceiver and now process any queued items 410 InstallShortcutReceiver.disableAndFlushInstallQueue(getContext()); 411 412 mDragSourceInternal = null; 413 mLauncher.onInteractionEnd(); 414 } 415 416 /** 417 * Initializes various states for this workspace. 418 */ 419 protected void initWorkspace() { 420 mCurrentPage = mDefaultPage; 421 LauncherAppState app = LauncherAppState.getInstance(); 422 DeviceProfile grid = mLauncher.getDeviceProfile(); 423 mIconCache = app.getIconCache(); 424 setWillNotDraw(false); 425 setClipChildren(false); 426 setClipToPadding(false); 427 setChildrenDrawnWithCacheEnabled(true); 428 429 setMinScale(mOverviewModeShrinkFactor); 430 setupLayoutTransition(); 431 432 mWallpaperOffset = new WallpaperOffsetInterpolator(); 433 Display display = mLauncher.getWindowManager().getDefaultDisplay(); 434 display.getSize(mDisplaySize); 435 436 mMaxDistanceForFolderCreation = (0.55f * grid.iconSizePx); 437 438 // Set the wallpaper dimensions when Launcher starts up 439 setWallpaperDimension(); 440 } 441 442 private void setupLayoutTransition() { 443 // We want to show layout transitions when pages are deleted, to close the gap. 444 mLayoutTransition = new LayoutTransition(); 445 mLayoutTransition.enableTransitionType(LayoutTransition.DISAPPEARING); 446 mLayoutTransition.enableTransitionType(LayoutTransition.CHANGE_DISAPPEARING); 447 mLayoutTransition.disableTransitionType(LayoutTransition.APPEARING); 448 mLayoutTransition.disableTransitionType(LayoutTransition.CHANGE_APPEARING); 449 setLayoutTransition(mLayoutTransition); 450 } 451 452 void enableLayoutTransitions() { 453 setLayoutTransition(mLayoutTransition); 454 } 455 void disableLayoutTransitions() { 456 setLayoutTransition(null); 457 } 458 459 @Override 460 protected int getScrollMode() { 461 return SmoothPagedView.X_LARGE_MODE; 462 } 463 464 @Override 465 public void onChildViewAdded(View parent, View child) { 466 if (!(child instanceof CellLayout)) { 467 throw new IllegalArgumentException("A Workspace can only have CellLayout children."); 468 } 469 CellLayout cl = ((CellLayout) child); 470 cl.setOnInterceptTouchListener(this); 471 cl.setClickable(true); 472 cl.setImportantForAccessibility(IMPORTANT_FOR_ACCESSIBILITY_NO); 473 super.onChildViewAdded(parent, child); 474 } 475 476 protected boolean shouldDrawChild(View child) { 477 final CellLayout cl = (CellLayout) child; 478 return super.shouldDrawChild(child) && 479 (mIsSwitchingState || 480 cl.getShortcutsAndWidgets().getAlpha() > 0 || 481 cl.getBackgroundAlpha() > 0); 482 } 483 484 /** 485 * @return The open folder on the current screen, or null if there is none 486 */ 487 public Folder getOpenFolder() { 488 DragLayer dragLayer = mLauncher.getDragLayer(); 489 int count = dragLayer.getChildCount(); 490 for (int i = 0; i < count; i++) { 491 View child = dragLayer.getChildAt(i); 492 if (child instanceof Folder) { 493 Folder folder = (Folder) child; 494 if (folder.getInfo().opened) 495 return folder; 496 } 497 } 498 return null; 499 } 500 501 boolean isTouchActive() { 502 return mTouchState != TOUCH_STATE_REST; 503 } 504 505 public void removeAllWorkspaceScreens() { 506 // Disable all layout transitions before removing all pages to ensure that we don't get the 507 // transition animations competing with us changing the scroll when we add pages or the 508 // custom content screen 509 disableLayoutTransitions(); 510 511 // Since we increment the current page when we call addCustomContentPage via bindScreens 512 // (and other places), we need to adjust the current page back when we clear the pages 513 if (hasCustomContent()) { 514 removeCustomContentPage(); 515 } 516 517 // Remove the pages and clear the screen models 518 removeAllViews(); 519 mScreenOrder.clear(); 520 mWorkspaceScreens.clear(); 521 522 // Re-enable the layout transitions 523 enableLayoutTransitions(); 524 } 525 526 public long insertNewWorkspaceScreenBeforeEmptyScreen(long screenId) { 527 // Find the index to insert this view into. If the empty screen exists, then 528 // insert it before that. 529 int insertIndex = mScreenOrder.indexOf(EXTRA_EMPTY_SCREEN_ID); 530 if (insertIndex < 0) { 531 insertIndex = mScreenOrder.size(); 532 } 533 return insertNewWorkspaceScreen(screenId, insertIndex); 534 } 535 536 public long insertNewWorkspaceScreen(long screenId) { 537 return insertNewWorkspaceScreen(screenId, getChildCount()); 538 } 539 540 public long insertNewWorkspaceScreen(long screenId, int insertIndex) { 541 if (mWorkspaceScreens.containsKey(screenId)) { 542 throw new RuntimeException("Screen id " + screenId + " already exists!"); 543 } 544 545 // Inflate the cell layout, but do not add it automatically so that we can get the newly 546 // created CellLayout. 547 CellLayout newScreen = (CellLayout) mLauncher.getLayoutInflater().inflate( 548 R.layout.workspace_screen, this, false /* attachToRoot */); 549 550 newScreen.setOnLongClickListener(mLongClickListener); 551 newScreen.setOnClickListener(mLauncher); 552 newScreen.setSoundEffectsEnabled(false); 553 mWorkspaceScreens.put(screenId, newScreen); 554 mScreenOrder.add(insertIndex, screenId); 555 addView(newScreen, insertIndex); 556 557 LauncherAccessibilityDelegate delegate = 558 LauncherAppState.getInstance().getAccessibilityDelegate(); 559 if (delegate != null && delegate.isInAccessibleDrag()) { 560 newScreen.enableAccessibleDrag(true, CellLayout.WORKSPACE_ACCESSIBILITY_DRAG); 561 } 562 return screenId; 563 } 564 565 public void createCustomContentContainer() { 566 CellLayout customScreen = (CellLayout) 567 mLauncher.getLayoutInflater().inflate(R.layout.workspace_screen, this, false); 568 customScreen.disableDragTarget(); 569 570 mWorkspaceScreens.put(CUSTOM_CONTENT_SCREEN_ID, customScreen); 571 mScreenOrder.add(0, CUSTOM_CONTENT_SCREEN_ID); 572 573 // We want no padding on the custom content 574 customScreen.setPadding(0, 0, 0, 0); 575 576 addFullScreenPage(customScreen); 577 578 // Ensure that the current page and default page are maintained. 579 mDefaultPage = mOriginalDefaultPage + 1; 580 581 // Update the custom content hint 582 if (mRestorePage != INVALID_RESTORE_PAGE) { 583 mRestorePage = mRestorePage + 1; 584 } else { 585 setCurrentPage(getCurrentPage() + 1); 586 } 587 } 588 589 public void removeCustomContentPage() { 590 CellLayout customScreen = getScreenWithId(CUSTOM_CONTENT_SCREEN_ID); 591 if (customScreen == null) { 592 throw new RuntimeException("Expected custom content screen to exist"); 593 } 594 595 mWorkspaceScreens.remove(CUSTOM_CONTENT_SCREEN_ID); 596 mScreenOrder.remove(CUSTOM_CONTENT_SCREEN_ID); 597 removeView(customScreen); 598 599 if (mCustomContentCallbacks != null) { 600 mCustomContentCallbacks.onScrollProgressChanged(0); 601 mCustomContentCallbacks.onHide(); 602 } 603 604 mCustomContentCallbacks = null; 605 606 // Ensure that the current page and default page are maintained. 607 mDefaultPage = mOriginalDefaultPage - 1; 608 609 // Update the custom content hint 610 if (mRestorePage != INVALID_RESTORE_PAGE) { 611 mRestorePage = mRestorePage - 1; 612 } else { 613 setCurrentPage(getCurrentPage() - 1); 614 } 615 } 616 617 public void addToCustomContentPage(View customContent, CustomContentCallbacks callbacks, 618 String description) { 619 if (getPageIndexForScreenId(CUSTOM_CONTENT_SCREEN_ID) < 0) { 620 throw new RuntimeException("Expected custom content screen to exist"); 621 } 622 623 // Add the custom content to the full screen custom page 624 CellLayout customScreen = getScreenWithId(CUSTOM_CONTENT_SCREEN_ID); 625 int spanX = customScreen.getCountX(); 626 int spanY = customScreen.getCountY(); 627 CellLayout.LayoutParams lp = new CellLayout.LayoutParams(0, 0, spanX, spanY); 628 lp.canReorder = false; 629 lp.isFullscreen = true; 630 if (customContent instanceof Insettable) { 631 ((Insettable)customContent).setInsets(mInsets); 632 } 633 634 // Verify that the child is removed from any existing parent. 635 if (customContent.getParent() instanceof ViewGroup) { 636 ViewGroup parent = (ViewGroup) customContent.getParent(); 637 parent.removeView(customContent); 638 } 639 customScreen.removeAllViews(); 640 customScreen.addViewToCellLayout(customContent, 0, 0, lp, true); 641 mCustomContentDescription = description; 642 643 mCustomContentCallbacks = callbacks; 644 } 645 646 public void addExtraEmptyScreenOnDrag() { 647 boolean lastChildOnScreen = false; 648 boolean childOnFinalScreen = false; 649 650 // Cancel any pending removal of empty screen 651 mRemoveEmptyScreenRunnable = null; 652 653 if (mDragSourceInternal != null) { 654 if (mDragSourceInternal.getChildCount() == 1) { 655 lastChildOnScreen = true; 656 } 657 CellLayout cl = (CellLayout) mDragSourceInternal.getParent(); 658 if (indexOfChild(cl) == getChildCount() - 1) { 659 childOnFinalScreen = true; 660 } 661 } 662 663 // If this is the last item on the final screen 664 if (lastChildOnScreen && childOnFinalScreen) { 665 return; 666 } 667 if (!mWorkspaceScreens.containsKey(EXTRA_EMPTY_SCREEN_ID)) { 668 insertNewWorkspaceScreen(EXTRA_EMPTY_SCREEN_ID); 669 } 670 } 671 672 public boolean addExtraEmptyScreen() { 673 if (!mWorkspaceScreens.containsKey(EXTRA_EMPTY_SCREEN_ID)) { 674 insertNewWorkspaceScreen(EXTRA_EMPTY_SCREEN_ID); 675 return true; 676 } 677 return false; 678 } 679 680 private void convertFinalScreenToEmptyScreenIfNecessary() { 681 if (mLauncher.isWorkspaceLoading()) { 682 // Invalid and dangerous operation if workspace is loading 683 Launcher.addDumpLog(TAG, " - workspace loading, skip", true); 684 return; 685 } 686 687 if (hasExtraEmptyScreen() || mScreenOrder.size() == 0) return; 688 long finalScreenId = mScreenOrder.get(mScreenOrder.size() - 1); 689 690 if (finalScreenId == CUSTOM_CONTENT_SCREEN_ID) return; 691 CellLayout finalScreen = mWorkspaceScreens.get(finalScreenId); 692 693 // If the final screen is empty, convert it to the extra empty screen 694 if (finalScreen.getShortcutsAndWidgets().getChildCount() == 0 && 695 !finalScreen.isDropPending()) { 696 mWorkspaceScreens.remove(finalScreenId); 697 mScreenOrder.remove(finalScreenId); 698 699 // if this is the last non-custom content screen, convert it to the empty screen 700 mWorkspaceScreens.put(EXTRA_EMPTY_SCREEN_ID, finalScreen); 701 mScreenOrder.add(EXTRA_EMPTY_SCREEN_ID); 702 703 // Update the model if we have changed any screens 704 mLauncher.getModel().updateWorkspaceScreenOrder(mLauncher, mScreenOrder); 705 } 706 } 707 708 public void removeExtraEmptyScreen(final boolean animate, boolean stripEmptyScreens) { 709 removeExtraEmptyScreenDelayed(animate, null, 0, stripEmptyScreens); 710 } 711 712 public void removeExtraEmptyScreenDelayed(final boolean animate, final Runnable onComplete, 713 final int delay, final boolean stripEmptyScreens) { 714 if (mLauncher.isWorkspaceLoading()) { 715 // Don't strip empty screens if the workspace is still loading 716 Launcher.addDumpLog(TAG, " - workspace loading, skip", true); 717 return; 718 } 719 720 if (delay > 0) { 721 postDelayed(new Runnable() { 722 @Override 723 public void run() { 724 removeExtraEmptyScreenDelayed(animate, onComplete, 0, stripEmptyScreens); 725 } 726 }, delay); 727 return; 728 } 729 730 convertFinalScreenToEmptyScreenIfNecessary(); 731 if (hasExtraEmptyScreen()) { 732 int emptyIndex = mScreenOrder.indexOf(EXTRA_EMPTY_SCREEN_ID); 733 if (getNextPage() == emptyIndex) { 734 snapToPage(getNextPage() - 1, SNAP_OFF_EMPTY_SCREEN_DURATION); 735 fadeAndRemoveEmptyScreen(SNAP_OFF_EMPTY_SCREEN_DURATION, FADE_EMPTY_SCREEN_DURATION, 736 onComplete, stripEmptyScreens); 737 } else { 738 fadeAndRemoveEmptyScreen(0, FADE_EMPTY_SCREEN_DURATION, 739 onComplete, stripEmptyScreens); 740 } 741 return; 742 } else if (stripEmptyScreens) { 743 // If we're not going to strip the empty screens after removing 744 // the extra empty screen, do it right away. 745 stripEmptyScreens(); 746 } 747 748 if (onComplete != null) { 749 onComplete.run(); 750 } 751 } 752 753 private void fadeAndRemoveEmptyScreen(int delay, int duration, final Runnable onComplete, 754 final boolean stripEmptyScreens) { 755 // XXX: Do we need to update LM workspace screens below? 756 PropertyValuesHolder alpha = PropertyValuesHolder.ofFloat("alpha", 0f); 757 PropertyValuesHolder bgAlpha = PropertyValuesHolder.ofFloat("backgroundAlpha", 0f); 758 759 final CellLayout cl = mWorkspaceScreens.get(EXTRA_EMPTY_SCREEN_ID); 760 761 mRemoveEmptyScreenRunnable = new Runnable() { 762 @Override 763 public void run() { 764 if (hasExtraEmptyScreen()) { 765 mWorkspaceScreens.remove(EXTRA_EMPTY_SCREEN_ID); 766 mScreenOrder.remove(EXTRA_EMPTY_SCREEN_ID); 767 removeView(cl); 768 if (stripEmptyScreens) { 769 stripEmptyScreens(); 770 } 771 } 772 } 773 }; 774 775 ObjectAnimator oa = ObjectAnimator.ofPropertyValuesHolder(cl, alpha, bgAlpha); 776 oa.setDuration(duration); 777 oa.setStartDelay(delay); 778 oa.addListener(new AnimatorListenerAdapter() { 779 @Override 780 public void onAnimationEnd(Animator animation) { 781 if (mRemoveEmptyScreenRunnable != null) { 782 mRemoveEmptyScreenRunnable.run(); 783 } 784 if (onComplete != null) { 785 onComplete.run(); 786 } 787 } 788 }); 789 oa.start(); 790 } 791 792 public boolean hasExtraEmptyScreen() { 793 int nScreens = getChildCount(); 794 nScreens = nScreens - numCustomPages(); 795 return mWorkspaceScreens.containsKey(EXTRA_EMPTY_SCREEN_ID) && nScreens > 1; 796 } 797 798 public long commitExtraEmptyScreen() { 799 if (mLauncher.isWorkspaceLoading()) { 800 // Invalid and dangerous operation if workspace is loading 801 Launcher.addDumpLog(TAG, " - workspace loading, skip", true); 802 return -1; 803 } 804 805 int index = getPageIndexForScreenId(EXTRA_EMPTY_SCREEN_ID); 806 CellLayout cl = mWorkspaceScreens.get(EXTRA_EMPTY_SCREEN_ID); 807 mWorkspaceScreens.remove(EXTRA_EMPTY_SCREEN_ID); 808 mScreenOrder.remove(EXTRA_EMPTY_SCREEN_ID); 809 810 long newId = LauncherAppState.getLauncherProvider().generateNewScreenId(); 811 mWorkspaceScreens.put(newId, cl); 812 mScreenOrder.add(newId); 813 814 // Update the page indicator marker 815 if (getPageIndicator() != null) { 816 getPageIndicator().updateMarker(index, getPageIndicatorMarker(index)); 817 } 818 819 // Update the model for the new screen 820 mLauncher.getModel().updateWorkspaceScreenOrder(mLauncher, mScreenOrder); 821 822 return newId; 823 } 824 825 public CellLayout getScreenWithId(long screenId) { 826 CellLayout layout = mWorkspaceScreens.get(screenId); 827 return layout; 828 } 829 830 public long getIdForScreen(CellLayout layout) { 831 int index = mWorkspaceScreens.indexOfValue(layout); 832 if (index != -1) { 833 return mWorkspaceScreens.keyAt(index); 834 } 835 return -1; 836 } 837 838 public int getPageIndexForScreenId(long screenId) { 839 return indexOfChild(mWorkspaceScreens.get(screenId)); 840 } 841 842 public long getScreenIdForPageIndex(int index) { 843 if (0 <= index && index < mScreenOrder.size()) { 844 return mScreenOrder.get(index); 845 } 846 return -1; 847 } 848 849 public ArrayList<Long> getScreenOrder() { 850 return mScreenOrder; 851 } 852 853 public void stripEmptyScreens() { 854 if (mLauncher.isWorkspaceLoading()) { 855 // Don't strip empty screens if the workspace is still loading. 856 // This is dangerous and can result in data loss. 857 Launcher.addDumpLog(TAG, " - workspace loading, skip", true); 858 return; 859 } 860 861 if (isPageMoving()) { 862 mStripScreensOnPageStopMoving = true; 863 return; 864 } 865 866 int currentPage = getNextPage(); 867 ArrayList<Long> removeScreens = new ArrayList<Long>(); 868 int total = mWorkspaceScreens.size(); 869 for (int i = 0; i < total; i++) { 870 long id = mWorkspaceScreens.keyAt(i); 871 CellLayout cl = mWorkspaceScreens.valueAt(i); 872 if (id >= 0 && cl.getShortcutsAndWidgets().getChildCount() == 0) { 873 removeScreens.add(id); 874 } 875 } 876 877 // We enforce at least one page to add new items to. In the case that we remove the last 878 // such screen, we convert the last screen to the empty screen 879 int minScreens = 1 + numCustomPages(); 880 881 int pageShift = 0; 882 for (Long id: removeScreens) { 883 CellLayout cl = mWorkspaceScreens.get(id); 884 mWorkspaceScreens.remove(id); 885 mScreenOrder.remove(id); 886 887 if (getChildCount() > minScreens) { 888 if (indexOfChild(cl) < currentPage) { 889 pageShift++; 890 } 891 removeView(cl); 892 } else { 893 // if this is the last non-custom content screen, convert it to the empty screen 894 mRemoveEmptyScreenRunnable = null; 895 mWorkspaceScreens.put(EXTRA_EMPTY_SCREEN_ID, cl); 896 mScreenOrder.add(EXTRA_EMPTY_SCREEN_ID); 897 } 898 } 899 900 if (!removeScreens.isEmpty()) { 901 // Update the model if we have changed any screens 902 mLauncher.getModel().updateWorkspaceScreenOrder(mLauncher, mScreenOrder); 903 } 904 905 if (pageShift >= 0) { 906 setCurrentPage(currentPage - pageShift); 907 } 908 } 909 910 // See implementation for parameter definition. 911 void addInScreen(View child, long container, long screenId, 912 int x, int y, int spanX, int spanY) { 913 addInScreen(child, container, screenId, x, y, spanX, spanY, false, false); 914 } 915 916 // At bind time, we use the rank (screenId) to compute x and y for hotseat items. 917 // See implementation for parameter definition. 918 void addInScreenFromBind(View child, long container, long screenId, int x, int y, 919 int spanX, int spanY) { 920 addInScreen(child, container, screenId, x, y, spanX, spanY, false, true); 921 } 922 923 // See implementation for parameter definition. 924 void addInScreen(View child, long container, long screenId, int x, int y, int spanX, int spanY, 925 boolean insert) { 926 addInScreen(child, container, screenId, x, y, spanX, spanY, insert, false); 927 } 928 929 /** 930 * Adds the specified child in the specified screen. The position and dimension of 931 * the child are defined by x, y, spanX and spanY. 932 * 933 * @param child The child to add in one of the workspace's screens. 934 * @param screenId The screen in which to add the child. 935 * @param x The X position of the child in the screen's grid. 936 * @param y The Y position of the child in the screen's grid. 937 * @param spanX The number of cells spanned horizontally by the child. 938 * @param spanY The number of cells spanned vertically by the child. 939 * @param insert When true, the child is inserted at the beginning of the children list. 940 * @param computeXYFromRank When true, we use the rank (stored in screenId) to compute 941 * the x and y position in which to place hotseat items. Otherwise 942 * we use the x and y position to compute the rank. 943 */ 944 void addInScreen(View child, long container, long screenId, int x, int y, int spanX, int spanY, 945 boolean insert, boolean computeXYFromRank) { 946 if (container == LauncherSettings.Favorites.CONTAINER_DESKTOP) { 947 if (getScreenWithId(screenId) == null) { 948 Log.e(TAG, "Skipping child, screenId " + screenId + " not found"); 949 // DEBUGGING - Print out the stack trace to see where we are adding from 950 new Throwable().printStackTrace(); 951 return; 952 } 953 } 954 if (screenId == EXTRA_EMPTY_SCREEN_ID) { 955 // This should never happen 956 throw new RuntimeException("Screen id should not be EXTRA_EMPTY_SCREEN_ID"); 957 } 958 959 final CellLayout layout; 960 if (container == LauncherSettings.Favorites.CONTAINER_HOTSEAT) { 961 layout = mLauncher.getHotseat().getLayout(); 962 child.setOnKeyListener(new HotseatIconKeyEventListener()); 963 964 // Hide folder title in the hotseat 965 if (child instanceof FolderIcon) { 966 ((FolderIcon) child).setTextVisible(false); 967 } 968 969 if (computeXYFromRank) { 970 x = mLauncher.getHotseat().getCellXFromOrder((int) screenId); 971 y = mLauncher.getHotseat().getCellYFromOrder((int) screenId); 972 } else { 973 screenId = mLauncher.getHotseat().getOrderInHotseat(x, y); 974 } 975 } else { 976 // Show folder title if not in the hotseat 977 if (child instanceof FolderIcon) { 978 ((FolderIcon) child).setTextVisible(true); 979 } 980 layout = getScreenWithId(screenId); 981 child.setOnKeyListener(new IconKeyEventListener()); 982 } 983 984 ViewGroup.LayoutParams genericLp = child.getLayoutParams(); 985 CellLayout.LayoutParams lp; 986 if (genericLp == null || !(genericLp instanceof CellLayout.LayoutParams)) { 987 lp = new CellLayout.LayoutParams(x, y, spanX, spanY); 988 } else { 989 lp = (CellLayout.LayoutParams) genericLp; 990 lp.cellX = x; 991 lp.cellY = y; 992 lp.cellHSpan = spanX; 993 lp.cellVSpan = spanY; 994 } 995 996 if (spanX < 0 && spanY < 0) { 997 lp.isLockedToGrid = false; 998 } 999 1000 // Get the canonical child id to uniquely represent this view in this screen 1001 ItemInfo info = (ItemInfo) child.getTag(); 1002 int childId = mLauncher.getViewIdForItem(info); 1003 1004 boolean markCellsAsOccupied = !(child instanceof Folder); 1005 if (!layout.addViewToCellLayout(child, insert ? 0 : -1, childId, lp, markCellsAsOccupied)) { 1006 // TODO: This branch occurs when the workspace is adding views 1007 // outside of the defined grid 1008 // maybe we should be deleting these items from the LauncherModel? 1009 Launcher.addDumpLog(TAG, "Failed to add to item at (" + lp.cellX + "," + lp.cellY + ") to CellLayout", true); 1010 } 1011 1012 if (!(child instanceof Folder)) { 1013 child.setHapticFeedbackEnabled(false); 1014 child.setOnLongClickListener(mLongClickListener); 1015 } 1016 if (child instanceof DropTarget) { 1017 mDragController.addDropTarget((DropTarget) child); 1018 } 1019 } 1020 1021 /** 1022 * Called directly from a CellLayout (not by the framework), after we've been added as a 1023 * listener via setOnInterceptTouchEventListener(). This allows us to tell the CellLayout 1024 * that it should intercept touch events, which is not something that is normally supported. 1025 */ 1026 @SuppressLint("ClickableViewAccessibility") 1027 @Override 1028 public boolean onTouch(View v, MotionEvent event) { 1029 return (workspaceInModalState() || !isFinishedSwitchingState()) 1030 || (!workspaceInModalState() && indexOfChild(v) != mCurrentPage); 1031 } 1032 1033 public boolean isSwitchingState() { 1034 return mIsSwitchingState; 1035 } 1036 1037 /** This differs from isSwitchingState in that we take into account how far the transition 1038 * has completed. */ 1039 public boolean isFinishedSwitchingState() { 1040 return !mIsSwitchingState || (mTransitionProgress > 0.5f); 1041 } 1042 1043 protected void onWindowVisibilityChanged (int visibility) { 1044 mLauncher.onWindowVisibilityChanged(visibility); 1045 } 1046 1047 @Override 1048 public boolean dispatchUnhandledMove(View focused, int direction) { 1049 if (workspaceInModalState() || !isFinishedSwitchingState()) { 1050 // when the home screens are shrunken, shouldn't allow side-scrolling 1051 return false; 1052 } 1053 return super.dispatchUnhandledMove(focused, direction); 1054 } 1055 1056 @Override 1057 public boolean onInterceptTouchEvent(MotionEvent ev) { 1058 switch (ev.getAction() & MotionEvent.ACTION_MASK) { 1059 case MotionEvent.ACTION_DOWN: 1060 mXDown = ev.getX(); 1061 mYDown = ev.getY(); 1062 mTouchDownTime = System.currentTimeMillis(); 1063 break; 1064 case MotionEvent.ACTION_POINTER_UP: 1065 case MotionEvent.ACTION_UP: 1066 if (mTouchState == TOUCH_STATE_REST) { 1067 final CellLayout currentPage = (CellLayout) getChildAt(mCurrentPage); 1068 if (currentPage != null) { 1069 onWallpaperTap(ev); 1070 } 1071 } 1072 } 1073 return super.onInterceptTouchEvent(ev); 1074 } 1075 1076 @Override 1077 public boolean onGenericMotionEvent(MotionEvent event) { 1078 // Ignore pointer scroll events if the custom content doesn't allow scrolling. 1079 if ((getScreenIdForPageIndex(getCurrentPage()) == CUSTOM_CONTENT_SCREEN_ID) 1080 && (mCustomContentCallbacks != null) 1081 && !mCustomContentCallbacks.isScrollingAllowed()) { 1082 return false; 1083 } 1084 return super.onGenericMotionEvent(event); 1085 } 1086 1087 protected void reinflateWidgetsIfNecessary() { 1088 final int clCount = getChildCount(); 1089 for (int i = 0; i < clCount; i++) { 1090 CellLayout cl = (CellLayout) getChildAt(i); 1091 ShortcutAndWidgetContainer swc = cl.getShortcutsAndWidgets(); 1092 final int itemCount = swc.getChildCount(); 1093 for (int j = 0; j < itemCount; j++) { 1094 View v = swc.getChildAt(j); 1095 1096 if (v != null && v.getTag() instanceof LauncherAppWidgetInfo) { 1097 LauncherAppWidgetInfo info = (LauncherAppWidgetInfo) v.getTag(); 1098 LauncherAppWidgetHostView lahv = (LauncherAppWidgetHostView) info.hostView; 1099 if (lahv != null && lahv.isReinflateRequired()) { 1100 mLauncher.removeAppWidget(info); 1101 // Remove the current widget which is inflated with the wrong orientation 1102 cl.removeView(lahv); 1103 mLauncher.bindAppWidget(info); 1104 } 1105 } 1106 } 1107 } 1108 } 1109 1110 @Override 1111 protected void determineScrollingStart(MotionEvent ev) { 1112 if (!isFinishedSwitchingState()) return; 1113 1114 float deltaX = ev.getX() - mXDown; 1115 float absDeltaX = Math.abs(deltaX); 1116 float absDeltaY = Math.abs(ev.getY() - mYDown); 1117 1118 if (Float.compare(absDeltaX, 0f) == 0) return; 1119 1120 float slope = absDeltaY / absDeltaX; 1121 float theta = (float) Math.atan(slope); 1122 1123 if (absDeltaX > mTouchSlop || absDeltaY > mTouchSlop) { 1124 cancelCurrentPageLongPress(); 1125 } 1126 1127 boolean passRightSwipesToCustomContent = 1128 (mTouchDownTime - mCustomContentShowTime) > CUSTOM_CONTENT_GESTURE_DELAY; 1129 1130 boolean swipeInIgnoreDirection = mIsRtl ? deltaX < 0 : deltaX > 0; 1131 boolean onCustomContentScreen = 1132 getScreenIdForPageIndex(getCurrentPage()) == CUSTOM_CONTENT_SCREEN_ID; 1133 if (swipeInIgnoreDirection && onCustomContentScreen && passRightSwipesToCustomContent) { 1134 // Pass swipes to the right to the custom content page. 1135 return; 1136 } 1137 1138 if (onCustomContentScreen && (mCustomContentCallbacks != null) 1139 && !mCustomContentCallbacks.isScrollingAllowed()) { 1140 // Don't allow workspace scrolling if the current custom content screen doesn't allow 1141 // scrolling. 1142 return; 1143 } 1144 1145 if (theta > MAX_SWIPE_ANGLE) { 1146 // Above MAX_SWIPE_ANGLE, we don't want to ever start scrolling the workspace 1147 return; 1148 } else if (theta > START_DAMPING_TOUCH_SLOP_ANGLE) { 1149 // Above START_DAMPING_TOUCH_SLOP_ANGLE and below MAX_SWIPE_ANGLE, we want to 1150 // increase the touch slop to make it harder to begin scrolling the workspace. This 1151 // results in vertically scrolling widgets to more easily. The higher the angle, the 1152 // more we increase touch slop. 1153 theta -= START_DAMPING_TOUCH_SLOP_ANGLE; 1154 float extraRatio = (float) 1155 Math.sqrt((theta / (MAX_SWIPE_ANGLE - START_DAMPING_TOUCH_SLOP_ANGLE))); 1156 super.determineScrollingStart(ev, 1 + TOUCH_SLOP_DAMPING_FACTOR * extraRatio); 1157 } else { 1158 // Below START_DAMPING_TOUCH_SLOP_ANGLE, we don't do anything special 1159 super.determineScrollingStart(ev); 1160 } 1161 } 1162 1163 protected void onPageBeginMoving() { 1164 super.onPageBeginMoving(); 1165 1166 if (isHardwareAccelerated()) { 1167 updateChildrenLayersEnabled(false); 1168 } else { 1169 if (mNextPage != INVALID_PAGE) { 1170 // we're snapping to a particular screen 1171 enableChildrenCache(mCurrentPage, mNextPage); 1172 } else { 1173 // this is when user is actively dragging a particular screen, they might 1174 // swipe it either left or right (but we won't advance by more than one screen) 1175 enableChildrenCache(mCurrentPage - 1, mCurrentPage + 1); 1176 } 1177 } 1178 } 1179 1180 protected void onPageEndMoving() { 1181 super.onPageEndMoving(); 1182 1183 if (isHardwareAccelerated()) { 1184 updateChildrenLayersEnabled(false); 1185 } else { 1186 clearChildrenCache(); 1187 } 1188 1189 if (mDragController.isDragging()) { 1190 if (workspaceInModalState()) { 1191 // If we are in springloaded mode, then force an event to check if the current touch 1192 // is under a new page (to scroll to) 1193 mDragController.forceTouchMove(); 1194 } 1195 } 1196 1197 if (mDelayedResizeRunnable != null) { 1198 mDelayedResizeRunnable.run(); 1199 mDelayedResizeRunnable = null; 1200 } 1201 1202 if (mDelayedSnapToPageRunnable != null) { 1203 mDelayedSnapToPageRunnable.run(); 1204 mDelayedSnapToPageRunnable = null; 1205 } 1206 if (mStripScreensOnPageStopMoving) { 1207 stripEmptyScreens(); 1208 mStripScreensOnPageStopMoving = false; 1209 } 1210 1211 if (mShouldSendPageSettled) { 1212 mLauncherOverlay.onScrollSettled(); 1213 mShouldSendPageSettled = false; 1214 } 1215 } 1216 1217 protected void onScrollInteractionBegin() { 1218 super.onScrollInteractionEnd(); 1219 mScrollInteractionBegan = true; 1220 } 1221 1222 protected void onScrollInteractionEnd() { 1223 super.onScrollInteractionEnd(); 1224 mScrollInteractionBegan = false; 1225 if (mStartedSendingScrollEvents) { 1226 mStartedSendingScrollEvents = false; 1227 mLauncherOverlay.onScrollInteractionEnd(); 1228 } 1229 } 1230 1231 public void setLauncherOverlay(LauncherOverlay overlay) { 1232 mLauncherOverlay = overlay; 1233 } 1234 1235 @Override 1236 protected void overScroll(float amount) { 1237 boolean shouldOverScroll = (amount <= 0 && (!hasCustomContent() || mIsRtl)) || 1238 (amount >= 0 && (!hasCustomContent() || !mIsRtl)); 1239 1240 boolean shouldScrollOverlay = mLauncherOverlay != null && 1241 ((amount <= 0 && !mIsRtl) || (amount >= 0 && mIsRtl)); 1242 1243 boolean shouldZeroOverlay = mLauncherOverlay != null && mLastOverlaySroll != 0 && 1244 ((amount >= 0 && !mIsRtl) || (amount <= 0 && mIsRtl)); 1245 1246 if (shouldScrollOverlay) { 1247 if (!mStartedSendingScrollEvents && mScrollInteractionBegan) { 1248 mStartedSendingScrollEvents = true; 1249 mLauncherOverlay.onScrollInteractionBegin(); 1250 mShouldSendPageSettled = true; 1251 } 1252 int screenSize = getViewportWidth(); 1253 float f = (amount / screenSize); 1254 1255 int progress = (int) Math.abs((f * 100)); 1256 1257 mLastOverlaySroll = progress; 1258 mLauncherOverlay.onScrollChange(progress, mIsRtl); 1259 } else if (shouldOverScroll) { 1260 dampedOverScroll(amount); 1261 mOverScrollEffect = acceleratedOverFactor(amount); 1262 } else { 1263 mOverScrollEffect = 0; 1264 } 1265 1266 if (shouldZeroOverlay) { 1267 mLauncherOverlay.onScrollChange(0, mIsRtl); 1268 } 1269 } 1270 1271 @Override 1272 protected void notifyPageSwitchListener() { 1273 super.notifyPageSwitchListener(); 1274 1275 if (hasCustomContent() && getNextPage() == 0 && !mCustomContentShowing) { 1276 mCustomContentShowing = true; 1277 if (mCustomContentCallbacks != null) { 1278 mCustomContentCallbacks.onShow(false); 1279 mCustomContentShowTime = System.currentTimeMillis(); 1280 } 1281 } else if (hasCustomContent() && getNextPage() != 0 && mCustomContentShowing) { 1282 mCustomContentShowing = false; 1283 if (mCustomContentCallbacks != null) { 1284 mCustomContentCallbacks.onHide(); 1285 } 1286 } 1287 } 1288 1289 protected CustomContentCallbacks getCustomContentCallbacks() { 1290 return mCustomContentCallbacks; 1291 } 1292 1293 protected void setWallpaperDimension() { 1294 new AsyncTask<Void, Void, Void>() { 1295 public Void doInBackground(Void ... args) { 1296 String spKey = LauncherFiles.WALLPAPER_CROP_PREFERENCES_KEY; 1297 SharedPreferences sp = 1298 mLauncher.getSharedPreferences(spKey, Context.MODE_MULTI_PROCESS); 1299 WallpaperUtils.suggestWallpaperDimension(mLauncher.getResources(), 1300 sp, mLauncher.getWindowManager(), mWallpaperManager, 1301 mLauncher.overrideWallpaperDimensions()); 1302 return null; 1303 } 1304 }.executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR, (Void) null); 1305 } 1306 1307 protected void snapToPage(int whichPage, Runnable r) { 1308 snapToPage(whichPage, SLOW_PAGE_SNAP_ANIMATION_DURATION, r); 1309 } 1310 1311 protected void snapToPage(int whichPage, int duration, Runnable r) { 1312 if (mDelayedSnapToPageRunnable != null) { 1313 mDelayedSnapToPageRunnable.run(); 1314 } 1315 mDelayedSnapToPageRunnable = r; 1316 snapToPage(whichPage, duration); 1317 } 1318 1319 public void snapToScreenId(long screenId) { 1320 snapToScreenId(screenId, null); 1321 } 1322 1323 protected void snapToScreenId(long screenId, Runnable r) { 1324 snapToPage(getPageIndexForScreenId(screenId), r); 1325 } 1326 1327 class WallpaperOffsetInterpolator implements Choreographer.FrameCallback { 1328 float mFinalOffset = 0.0f; 1329 float mCurrentOffset = 0.5f; // to force an initial update 1330 boolean mWaitingForUpdate; 1331 Choreographer mChoreographer; 1332 Interpolator mInterpolator; 1333 boolean mAnimating; 1334 long mAnimationStartTime; 1335 float mAnimationStartOffset; 1336 private final int ANIMATION_DURATION = 250; 1337 // Don't use all the wallpaper for parallax until you have at least this many pages 1338 private final int MIN_PARALLAX_PAGE_SPAN = 3; 1339 int mNumScreens; 1340 1341 public WallpaperOffsetInterpolator() { 1342 mChoreographer = Choreographer.getInstance(); 1343 mInterpolator = new DecelerateInterpolator(1.5f); 1344 } 1345 1346 @Override 1347 public void doFrame(long frameTimeNanos) { 1348 updateOffset(false); 1349 } 1350 1351 private void updateOffset(boolean force) { 1352 if (mWaitingForUpdate || force) { 1353 mWaitingForUpdate = false; 1354 if (computeScrollOffset() && mWindowToken != null) { 1355 try { 1356 mWallpaperManager.setWallpaperOffsets(mWindowToken, 1357 mWallpaperOffset.getCurrX(), 0.5f); 1358 setWallpaperOffsetSteps(); 1359 } catch (IllegalArgumentException e) { 1360 Log.e(TAG, "Error updating wallpaper offset: " + e); 1361 } 1362 } 1363 } 1364 } 1365 1366 public boolean computeScrollOffset() { 1367 final float oldOffset = mCurrentOffset; 1368 if (mAnimating) { 1369 long durationSinceAnimation = System.currentTimeMillis() - mAnimationStartTime; 1370 float t0 = durationSinceAnimation / (float) ANIMATION_DURATION; 1371 float t1 = mInterpolator.getInterpolation(t0); 1372 mCurrentOffset = mAnimationStartOffset + 1373 (mFinalOffset - mAnimationStartOffset) * t1; 1374 mAnimating = durationSinceAnimation < ANIMATION_DURATION; 1375 } else { 1376 mCurrentOffset = mFinalOffset; 1377 } 1378 1379 if (Math.abs(mCurrentOffset - mFinalOffset) > 0.0000001f) { 1380 scheduleUpdate(); 1381 } 1382 if (Math.abs(oldOffset - mCurrentOffset) > 0.0000001f) { 1383 return true; 1384 } 1385 return false; 1386 } 1387 1388 private float wallpaperOffsetForCurrentScroll() { 1389 // TODO: do different behavior if it's a live wallpaper? 1390 // Don't use up all the wallpaper parallax until you have at least 1391 // MIN_PARALLAX_PAGE_SPAN pages 1392 int numScrollingPages = getNumScreensExcludingEmptyAndCustom(); 1393 int parallaxPageSpan; 1394 if (mWallpaperIsLiveWallpaper) { 1395 parallaxPageSpan = numScrollingPages - 1; 1396 } else { 1397 parallaxPageSpan = Math.max(MIN_PARALLAX_PAGE_SPAN, numScrollingPages - 1); 1398 } 1399 mNumPagesForWallpaperParallax = parallaxPageSpan; 1400 1401 if (getChildCount() <= 1) { 1402 if (mIsRtl) { 1403 return 1 - 1.0f/mNumPagesForWallpaperParallax; 1404 } 1405 return 0; 1406 } 1407 1408 // Exclude the leftmost page 1409 int emptyExtraPages = numEmptyScreensToIgnore(); 1410 int firstIndex = numCustomPages(); 1411 // Exclude the last extra empty screen (if we have > MIN_PARALLAX_PAGE_SPAN pages) 1412 int lastIndex = getChildCount() - 1 - emptyExtraPages; 1413 if (mIsRtl) { 1414 int temp = firstIndex; 1415 firstIndex = lastIndex; 1416 lastIndex = temp; 1417 } 1418 1419 int firstPageScrollX = getScrollForPage(firstIndex); 1420 int scrollRange = getScrollForPage(lastIndex) - firstPageScrollX; 1421 if (scrollRange == 0) { 1422 return 0; 1423 } else { 1424 // Sometimes the left parameter of the pages is animated during a layout transition; 1425 // this parameter offsets it to keep the wallpaper from animating as well 1426 int adjustedScroll = 1427 getScrollX() - firstPageScrollX - getLayoutTransitionOffsetForPage(0); 1428 float offset = Math.min(1, adjustedScroll / (float) scrollRange); 1429 offset = Math.max(0, offset); 1430 1431 // On RTL devices, push the wallpaper offset to the right if we don't have enough 1432 // pages (ie if numScrollingPages < MIN_PARALLAX_PAGE_SPAN) 1433 if (!mWallpaperIsLiveWallpaper && numScrollingPages < MIN_PARALLAX_PAGE_SPAN 1434 && mIsRtl) { 1435 return offset * (parallaxPageSpan - numScrollingPages + 1) / parallaxPageSpan; 1436 } 1437 return offset * (numScrollingPages - 1) / parallaxPageSpan; 1438 } 1439 } 1440 1441 private int numEmptyScreensToIgnore() { 1442 int numScrollingPages = getChildCount() - numCustomPages(); 1443 if (numScrollingPages >= MIN_PARALLAX_PAGE_SPAN && hasExtraEmptyScreen()) { 1444 return 1; 1445 } else { 1446 return 0; 1447 } 1448 } 1449 1450 private int getNumScreensExcludingEmptyAndCustom() { 1451 int numScrollingPages = getChildCount() - numEmptyScreensToIgnore() - numCustomPages(); 1452 return numScrollingPages; 1453 } 1454 1455 public void syncWithScroll() { 1456 float offset = wallpaperOffsetForCurrentScroll(); 1457 mWallpaperOffset.setFinalX(offset); 1458 updateOffset(true); 1459 } 1460 1461 public float getCurrX() { 1462 return mCurrentOffset; 1463 } 1464 1465 public float getFinalX() { 1466 return mFinalOffset; 1467 } 1468 1469 private void animateToFinal() { 1470 mAnimating = true; 1471 mAnimationStartOffset = mCurrentOffset; 1472 mAnimationStartTime = System.currentTimeMillis(); 1473 } 1474 1475 private void setWallpaperOffsetSteps() { 1476 // Set wallpaper offset steps (1 / (number of screens - 1)) 1477 float xOffset = 1.0f / mNumPagesForWallpaperParallax; 1478 if (xOffset != mLastSetWallpaperOffsetSteps) { 1479 mWallpaperManager.setWallpaperOffsetSteps(xOffset, 1.0f); 1480 mLastSetWallpaperOffsetSteps = xOffset; 1481 } 1482 } 1483 1484 public void setFinalX(float x) { 1485 scheduleUpdate(); 1486 mFinalOffset = Math.max(0f, Math.min(x, 1.0f)); 1487 if (getNumScreensExcludingEmptyAndCustom() != mNumScreens) { 1488 if (mNumScreens > 0) { 1489 // Don't animate if we're going from 0 screens 1490 animateToFinal(); 1491 } 1492 mNumScreens = getNumScreensExcludingEmptyAndCustom(); 1493 } 1494 } 1495 1496 private void scheduleUpdate() { 1497 if (!mWaitingForUpdate) { 1498 mChoreographer.postFrameCallback(this); 1499 mWaitingForUpdate = true; 1500 } 1501 } 1502 1503 public void jumpToFinal() { 1504 mCurrentOffset = mFinalOffset; 1505 } 1506 } 1507 1508 @Override 1509 public void computeScroll() { 1510 super.computeScroll(); 1511 mWallpaperOffset.syncWithScroll(); 1512 } 1513 1514 @Override 1515 public void announceForAccessibility(CharSequence text) { 1516 // Don't announce if apps is on top of us. 1517 if (!mLauncher.isAppsViewVisible()) { 1518 super.announceForAccessibility(text); 1519 } 1520 } 1521 1522 public void showOutlinesTemporarily() { 1523 if (!mIsPageMoving && !isTouchActive()) { 1524 snapToPage(mCurrentPage); 1525 } 1526 } 1527 1528 float backgroundAlphaInterpolator(float r) { 1529 float pivotA = 0.1f; 1530 float pivotB = 0.4f; 1531 if (r < pivotA) { 1532 return 0; 1533 } else if (r > pivotB) { 1534 return 1.0f; 1535 } else { 1536 return (r - pivotA)/(pivotB - pivotA); 1537 } 1538 } 1539 1540 private void updatePageAlphaValues(int screenCenter) { 1541 boolean isInOverscroll = mOverScrollX < 0 || mOverScrollX > mMaxScrollX; 1542 if (mWorkspaceFadeInAdjacentScreens && 1543 !workspaceInModalState() && 1544 !mIsSwitchingState && 1545 !isInOverscroll) { 1546 for (int i = numCustomPages(); i < getChildCount(); i++) { 1547 CellLayout child = (CellLayout) getChildAt(i); 1548 if (child != null) { 1549 float scrollProgress = getScrollProgress(screenCenter, child, i); 1550 float alpha = 1 - Math.abs(scrollProgress); 1551 child.getShortcutsAndWidgets().setAlpha(alpha); 1552 } 1553 } 1554 } 1555 } 1556 1557 @TargetApi(Build.VERSION_CODES.LOLLIPOP) 1558 @Override 1559 public void enableAccessibleDrag(boolean enable) { 1560 for (int i = 0; i < getChildCount(); i++) { 1561 CellLayout child = (CellLayout) getChildAt(i); 1562 child.enableAccessibleDrag(enable, CellLayout.WORKSPACE_ACCESSIBILITY_DRAG); 1563 } 1564 1565 if (enable) { 1566 // We need to allow our individual children to become click handlers in this case 1567 setOnClickListener(null); 1568 } else { 1569 // Reset our click listener 1570 setOnClickListener(mLauncher); 1571 } 1572 mLauncher.getSearchBar().enableAccessibleDrag(enable); 1573 mLauncher.getHotseat().getLayout() 1574 .enableAccessibleDrag(enable, CellLayout.WORKSPACE_ACCESSIBILITY_DRAG); 1575 } 1576 1577 public boolean hasCustomContent() { 1578 return (mScreenOrder.size() > 0 && mScreenOrder.get(0) == CUSTOM_CONTENT_SCREEN_ID); 1579 } 1580 1581 public int numCustomPages() { 1582 return hasCustomContent() ? 1 : 0; 1583 } 1584 1585 public boolean isOnOrMovingToCustomContent() { 1586 return hasCustomContent() && getNextPage() == 0; 1587 } 1588 1589 private void updateStateForCustomContent(int screenCenter) { 1590 float translationX = 0; 1591 float progress = 0; 1592 if (hasCustomContent()) { 1593 int index = mScreenOrder.indexOf(CUSTOM_CONTENT_SCREEN_ID); 1594 1595 int scrollDelta = getScrollX() - getScrollForPage(index) - 1596 getLayoutTransitionOffsetForPage(index); 1597 float scrollRange = getScrollForPage(index + 1) - getScrollForPage(index); 1598 translationX = scrollRange - scrollDelta; 1599 progress = (scrollRange - scrollDelta) / scrollRange; 1600 1601 if (mIsRtl) { 1602 translationX = Math.min(0, translationX); 1603 } else { 1604 translationX = Math.max(0, translationX); 1605 } 1606 progress = Math.max(0, progress); 1607 } 1608 1609 if (Float.compare(progress, mLastCustomContentScrollProgress) == 0) return; 1610 1611 CellLayout cc = mWorkspaceScreens.get(CUSTOM_CONTENT_SCREEN_ID); 1612 if (progress > 0 && cc.getVisibility() != VISIBLE && !workspaceInModalState()) { 1613 cc.setVisibility(VISIBLE); 1614 } 1615 1616 mLastCustomContentScrollProgress = progress; 1617 1618 // We should only update the drag layer background alpha if we are not in all apps or the 1619 // widgets tray 1620 if (mState == State.NORMAL) { 1621 mLauncher.getDragLayer().setBackgroundAlpha(progress * 0.8f); 1622 } 1623 1624 if (mLauncher.getHotseat() != null) { 1625 mLauncher.getHotseat().setTranslationX(translationX); 1626 } 1627 1628 if (getPageIndicator() != null) { 1629 getPageIndicator().setTranslationX(translationX); 1630 } 1631 1632 if (mCustomContentCallbacks != null) { 1633 mCustomContentCallbacks.onScrollProgressChanged(progress); 1634 } 1635 } 1636 1637 @Override 1638 protected OnClickListener getPageIndicatorClickListener() { 1639 AccessibilityManager am = (AccessibilityManager) 1640 getContext().getSystemService(Context.ACCESSIBILITY_SERVICE); 1641 if (!am.isTouchExplorationEnabled()) { 1642 return null; 1643 } 1644 OnClickListener listener = new OnClickListener() { 1645 @Override 1646 public void onClick(View arg0) { 1647 mLauncher.showOverviewMode(true); 1648 } 1649 }; 1650 return listener; 1651 } 1652 1653 @Override 1654 protected void screenScrolled(int screenCenter) { 1655 super.screenScrolled(screenCenter); 1656 1657 updatePageAlphaValues(screenCenter); 1658 updateStateForCustomContent(screenCenter); 1659 enableHwLayersOnVisiblePages(); 1660 1661 boolean shouldOverScroll = mOverScrollX < 0 || mOverScrollX > mMaxScrollX; 1662 1663 if (shouldOverScroll) { 1664 int index = 0; 1665 final int lowerIndex = 0; 1666 final int upperIndex = getChildCount() - 1; 1667 1668 final boolean isLeftPage = mOverScrollX < 0; 1669 index = (!mIsRtl && isLeftPage) || (mIsRtl && !isLeftPage) ? lowerIndex : upperIndex; 1670 1671 CellLayout cl = (CellLayout) getChildAt(index); 1672 float effect = Math.abs(mOverScrollEffect); 1673 cl.setOverScrollAmount(Math.abs(effect), isLeftPage); 1674 1675 mOverscrollEffectSet = true; 1676 } else { 1677 if (mOverscrollEffectSet && getChildCount() > 0) { 1678 mOverscrollEffectSet = false; 1679 ((CellLayout) getChildAt(0)).setOverScrollAmount(0, false); 1680 ((CellLayout) getChildAt(getChildCount() - 1)).setOverScrollAmount(0, false); 1681 } 1682 } 1683 } 1684 1685 protected void onAttachedToWindow() { 1686 super.onAttachedToWindow(); 1687 mWindowToken = getWindowToken(); 1688 computeScroll(); 1689 mDragController.setWindowToken(mWindowToken); 1690 } 1691 1692 protected void onDetachedFromWindow() { 1693 super.onDetachedFromWindow(); 1694 mWindowToken = null; 1695 } 1696 1697 protected void onResume() { 1698 if (getPageIndicator() != null) { 1699 // In case accessibility state has changed, we need to perform this on every 1700 // attach to window 1701 OnClickListener listener = getPageIndicatorClickListener(); 1702 if (listener != null) { 1703 getPageIndicator().setOnClickListener(listener); 1704 } 1705 } 1706 1707 // Update wallpaper dimensions if they were changed since last onResume 1708 // (we also always set the wallpaper dimensions in the constructor) 1709 if (LauncherAppState.getInstance().hasWallpaperChangedSinceLastCheck()) { 1710 setWallpaperDimension(); 1711 } 1712 mWallpaperIsLiveWallpaper = mWallpaperManager.getWallpaperInfo() != null; 1713 // Force the wallpaper offset steps to be set again, because another app might have changed 1714 // them 1715 mLastSetWallpaperOffsetSteps = 0f; 1716 } 1717 1718 @Override 1719 protected void onLayout(boolean changed, int left, int top, int right, int bottom) { 1720 if (mFirstLayout && mCurrentPage >= 0 && mCurrentPage < getChildCount()) { 1721 mWallpaperOffset.syncWithScroll(); 1722 mWallpaperOffset.jumpToFinal(); 1723 } 1724 super.onLayout(changed, left, top, right, bottom); 1725 } 1726 1727 @Override 1728 protected void onDraw(Canvas canvas) { 1729 super.onDraw(canvas); 1730 1731 // Call back to LauncherModel to finish binding after the first draw 1732 post(mBindPages); 1733 } 1734 1735 @Override 1736 protected boolean onRequestFocusInDescendants(int direction, Rect previouslyFocusedRect) { 1737 if (!mLauncher.isAppsViewVisible()) { 1738 final Folder openFolder = getOpenFolder(); 1739 if (openFolder != null) { 1740 return openFolder.requestFocus(direction, previouslyFocusedRect); 1741 } else { 1742 return super.onRequestFocusInDescendants(direction, previouslyFocusedRect); 1743 } 1744 } 1745 return false; 1746 } 1747 1748 @Override 1749 public int getDescendantFocusability() { 1750 if (workspaceInModalState()) { 1751 return ViewGroup.FOCUS_BLOCK_DESCENDANTS; 1752 } 1753 return super.getDescendantFocusability(); 1754 } 1755 1756 @Override 1757 public void addFocusables(ArrayList<View> views, int direction, int focusableMode) { 1758 if (!mLauncher.isAppsViewVisible()) { 1759 final Folder openFolder = getOpenFolder(); 1760 if (openFolder != null) { 1761 openFolder.addFocusables(views, direction); 1762 } else { 1763 super.addFocusables(views, direction, focusableMode); 1764 } 1765 } 1766 } 1767 1768 public boolean workspaceInModalState() { 1769 return mState != State.NORMAL; 1770 } 1771 1772 void enableChildrenCache(int fromPage, int toPage) { 1773 if (fromPage > toPage) { 1774 final int temp = fromPage; 1775 fromPage = toPage; 1776 toPage = temp; 1777 } 1778 1779 final int screenCount = getChildCount(); 1780 1781 fromPage = Math.max(fromPage, 0); 1782 toPage = Math.min(toPage, screenCount - 1); 1783 1784 for (int i = fromPage; i <= toPage; i++) { 1785 final CellLayout layout = (CellLayout) getChildAt(i); 1786 layout.setChildrenDrawnWithCacheEnabled(true); 1787 layout.setChildrenDrawingCacheEnabled(true); 1788 } 1789 } 1790 1791 void clearChildrenCache() { 1792 final int screenCount = getChildCount(); 1793 for (int i = 0; i < screenCount; i++) { 1794 final CellLayout layout = (CellLayout) getChildAt(i); 1795 layout.setChildrenDrawnWithCacheEnabled(false); 1796 // In software mode, we don't want the items to continue to be drawn into bitmaps 1797 if (!isHardwareAccelerated()) { 1798 layout.setChildrenDrawingCacheEnabled(false); 1799 } 1800 } 1801 } 1802 1803 @Thunk void updateChildrenLayersEnabled(boolean force) { 1804 boolean small = mState == State.OVERVIEW || mIsSwitchingState; 1805 boolean enableChildrenLayers = force || small || mAnimatingViewIntoPlace || isPageMoving(); 1806 1807 if (enableChildrenLayers != mChildrenLayersEnabled) { 1808 mChildrenLayersEnabled = enableChildrenLayers; 1809 if (mChildrenLayersEnabled) { 1810 enableHwLayersOnVisiblePages(); 1811 } else { 1812 for (int i = 0; i < getPageCount(); i++) { 1813 final CellLayout cl = (CellLayout) getChildAt(i); 1814 cl.enableHardwareLayer(false); 1815 } 1816 } 1817 } 1818 } 1819 1820 private void enableHwLayersOnVisiblePages() { 1821 if (mChildrenLayersEnabled) { 1822 final int screenCount = getChildCount(); 1823 getVisiblePages(mTempVisiblePagesRange); 1824 int leftScreen = mTempVisiblePagesRange[0]; 1825 int rightScreen = mTempVisiblePagesRange[1]; 1826 if (leftScreen == rightScreen) { 1827 // make sure we're caching at least two pages always 1828 if (rightScreen < screenCount - 1) { 1829 rightScreen++; 1830 } else if (leftScreen > 0) { 1831 leftScreen--; 1832 } 1833 } 1834 1835 final CellLayout customScreen = mWorkspaceScreens.get(CUSTOM_CONTENT_SCREEN_ID); 1836 for (int i = 0; i < screenCount; i++) { 1837 final CellLayout layout = (CellLayout) getPageAt(i); 1838 1839 // enable layers between left and right screen inclusive, except for the 1840 // customScreen, which may animate its content during transitions. 1841 boolean enableLayer = layout != customScreen && 1842 leftScreen <= i && i <= rightScreen && shouldDrawChild(layout); 1843 layout.enableHardwareLayer(enableLayer); 1844 } 1845 } 1846 } 1847 1848 public void buildPageHardwareLayers() { 1849 // force layers to be enabled just for the call to buildLayer 1850 updateChildrenLayersEnabled(true); 1851 if (getWindowToken() != null) { 1852 final int childCount = getChildCount(); 1853 for (int i = 0; i < childCount; i++) { 1854 CellLayout cl = (CellLayout) getChildAt(i); 1855 cl.buildHardwareLayer(); 1856 } 1857 } 1858 updateChildrenLayersEnabled(false); 1859 } 1860 1861 protected void onWallpaperTap(MotionEvent ev) { 1862 final int[] position = mTempCell; 1863 getLocationOnScreen(position); 1864 1865 int pointerIndex = ev.getActionIndex(); 1866 position[0] += (int) ev.getX(pointerIndex); 1867 position[1] += (int) ev.getY(pointerIndex); 1868 1869 mWallpaperManager.sendWallpaperCommand(getWindowToken(), 1870 ev.getAction() == MotionEvent.ACTION_UP 1871 ? WallpaperManager.COMMAND_TAP : WallpaperManager.COMMAND_SECONDARY_TAP, 1872 position[0], position[1], 0, null); 1873 } 1874 1875 /* 1876 * 1877 * We call these methods (onDragStartedWithItemSpans/onDragStartedWithSize) whenever we 1878 * start a drag in Launcher, regardless of whether the drag has ever entered the Workspace 1879 * 1880 * These methods mark the appropriate pages as accepting drops (which alters their visual 1881 * appearance). 1882 * 1883 */ 1884 private static Rect getDrawableBounds(Drawable d) { 1885 Rect bounds = new Rect(); 1886 d.copyBounds(bounds); 1887 if (bounds.width() == 0 || bounds.height() == 0) { 1888 bounds.set(0, 0, d.getIntrinsicWidth(), d.getIntrinsicHeight()); 1889 } else { 1890 bounds.offsetTo(0, 0); 1891 } 1892 if (d instanceof PreloadIconDrawable) { 1893 int inset = -((PreloadIconDrawable) d).getOutset(); 1894 bounds.inset(inset, inset); 1895 } 1896 return bounds; 1897 } 1898 1899 public void onExternalDragStartedWithItem(View v) { 1900 // Compose a drag bitmap with the view scaled to the icon size 1901 DeviceProfile grid = mLauncher.getDeviceProfile(); 1902 int iconSize = grid.iconSizePx; 1903 int bmpWidth = v.getMeasuredWidth(); 1904 int bmpHeight = v.getMeasuredHeight(); 1905 1906 // If this is a text view, use its drawable instead 1907 if (v instanceof TextView) { 1908 Drawable d = getTextViewIcon((TextView) v); 1909 Rect bounds = getDrawableBounds(d); 1910 bmpWidth = bounds.width(); 1911 bmpHeight = bounds.height(); 1912 } 1913 1914 // Compose the bitmap to create the icon from 1915 Bitmap b = Bitmap.createBitmap(bmpWidth, bmpHeight, 1916 Bitmap.Config.ARGB_8888); 1917 mCanvas.setBitmap(b); 1918 drawDragView(v, mCanvas, 0); 1919 mCanvas.setBitmap(null); 1920 1921 // The outline is used to visualize where the item will land if dropped 1922 mDragOutline = createDragOutline(b, DRAG_BITMAP_PADDING, iconSize, iconSize, true); 1923 } 1924 1925 public void onDragStartedWithItem(PendingAddItemInfo info, Bitmap b, boolean clipAlpha) { 1926 int[] size = estimateItemSize(info, false); 1927 1928 // The outline is used to visualize where the item will land if dropped 1929 mDragOutline = createDragOutline(b, DRAG_BITMAP_PADDING, size[0], size[1], clipAlpha); 1930 } 1931 1932 public void exitWidgetResizeMode() { 1933 DragLayer dragLayer = mLauncher.getDragLayer(); 1934 dragLayer.clearAllResizeFrames(); 1935 } 1936 1937 @Override 1938 protected void getFreeScrollPageRange(int[] range) { 1939 getOverviewModePages(range); 1940 } 1941 1942 private void getOverviewModePages(int[] range) { 1943 int start = numCustomPages(); 1944 int end = getChildCount() - 1; 1945 1946 range[0] = Math.max(0, Math.min(start, getChildCount() - 1)); 1947 range[1] = Math.max(0, end); 1948 } 1949 1950 public void onStartReordering() { 1951 super.onStartReordering(); 1952 // Reordering handles its own animations, disable the automatic ones. 1953 disableLayoutTransitions(); 1954 } 1955 1956 public void onEndReordering() { 1957 super.onEndReordering(); 1958 1959 if (mLauncher.isWorkspaceLoading()) { 1960 // Invalid and dangerous operation if workspace is loading 1961 return; 1962 } 1963 1964 mScreenOrder.clear(); 1965 int count = getChildCount(); 1966 for (int i = 0; i < count; i++) { 1967 CellLayout cl = ((CellLayout) getChildAt(i)); 1968 mScreenOrder.add(getIdForScreen(cl)); 1969 } 1970 1971 mLauncher.getModel().updateWorkspaceScreenOrder(mLauncher, mScreenOrder); 1972 1973 // Re-enable auto layout transitions for page deletion. 1974 enableLayoutTransitions(); 1975 } 1976 1977 public boolean isInOverviewMode() { 1978 return mState == State.OVERVIEW; 1979 } 1980 1981 int getOverviewModeTranslationY() { 1982 DeviceProfile grid = mLauncher.getDeviceProfile(); 1983 Rect overviewBar = grid.getOverviewModeButtonBarRect(); 1984 1985 int availableHeight = getViewportHeight(); 1986 int scaledHeight = (int) (mOverviewModeShrinkFactor * getNormalChildHeight()); 1987 int offsetFromTopEdge = (availableHeight - scaledHeight) / 2; 1988 int offsetToCenterInOverview = (availableHeight - mInsets.top - overviewBar.height() 1989 - scaledHeight) / 2; 1990 1991 return -offsetFromTopEdge + mInsets.top + offsetToCenterInOverview; 1992 } 1993 1994 /** 1995 * Sets the current workspace {@link State}, returning an animation transitioning the workspace 1996 * to that new state. 1997 */ 1998 public Animator setStateWithAnimation(State toState, int toPage, boolean animated, 1999 HashMap<View, Integer> layerViews) { 2000 // Create the animation to the new state 2001 Animator workspaceAnim = mStateTransitionAnimation.getAnimationToState(getState(), 2002 toState, toPage, animated, layerViews); 2003 2004 // Update the current state 2005 mState = toState; 2006 updateAccessibilityFlags(); 2007 2008 return workspaceAnim; 2009 } 2010 2011 State getState() { 2012 return mState; 2013 } 2014 2015 public void updateAccessibilityFlags() { 2016 if (Utilities.isLmpOrAbove()) { 2017 int total = getPageCount(); 2018 for (int i = numCustomPages(); i < total; i++) { 2019 updateAccessibilityFlags((CellLayout) getPageAt(i), i); 2020 } 2021 } else { 2022 int accessible = mState == State.NORMAL ? 2023 IMPORTANT_FOR_ACCESSIBILITY_AUTO : 2024 IMPORTANT_FOR_ACCESSIBILITY_NO_HIDE_DESCENDANTS; 2025 setImportantForAccessibility(accessible); 2026 } 2027 } 2028 2029 private void updateAccessibilityFlags(CellLayout page, int pageNo) { 2030 if (mState == State.OVERVIEW) { 2031 page.setImportantForAccessibility(IMPORTANT_FOR_ACCESSIBILITY_YES); 2032 page.getShortcutsAndWidgets().setImportantForAccessibility( 2033 IMPORTANT_FOR_ACCESSIBILITY_NO_HIDE_DESCENDANTS); 2034 page.setContentDescription(getPageDescription(pageNo)); 2035 2036 if (mPagesAccessibilityDelegate == null) { 2037 mPagesAccessibilityDelegate = new OverviewScreenAccessibilityDelegate(this); 2038 } 2039 page.setAccessibilityDelegate(mPagesAccessibilityDelegate); 2040 } else { 2041 int accessible = mState == State.NORMAL ? 2042 IMPORTANT_FOR_ACCESSIBILITY_AUTO : 2043 IMPORTANT_FOR_ACCESSIBILITY_NO_HIDE_DESCENDANTS; 2044 page.setImportantForAccessibility(IMPORTANT_FOR_ACCESSIBILITY_NO); 2045 page.getShortcutsAndWidgets().setImportantForAccessibility(accessible); 2046 page.setContentDescription(null); 2047 page.setAccessibilityDelegate(null); 2048 } 2049 } 2050 2051 @Override 2052 public void onLauncherTransitionPrepare(Launcher l, boolean animated, boolean toWorkspace) { 2053 mIsSwitchingState = true; 2054 2055 // Invalidate here to ensure that the pages are rendered during the state change transition. 2056 invalidate(); 2057 2058 updateChildrenLayersEnabled(false); 2059 hideCustomContentIfNecessary(); 2060 } 2061 2062 @Override 2063 public void onLauncherTransitionStart(Launcher l, boolean animated, boolean toWorkspace) { 2064 } 2065 2066 @Override 2067 public void onLauncherTransitionStep(Launcher l, float t) { 2068 mTransitionProgress = t; 2069 } 2070 2071 @Override 2072 public void onLauncherTransitionEnd(Launcher l, boolean animated, boolean toWorkspace) { 2073 mIsSwitchingState = false; 2074 updateChildrenLayersEnabled(false); 2075 showCustomContentIfNecessary(); 2076 } 2077 2078 void updateCustomContentVisibility() { 2079 int visibility = mState == Workspace.State.NORMAL ? VISIBLE : INVISIBLE; 2080 if (hasCustomContent()) { 2081 mWorkspaceScreens.get(CUSTOM_CONTENT_SCREEN_ID).setVisibility(visibility); 2082 } 2083 } 2084 2085 void showCustomContentIfNecessary() { 2086 boolean show = mState == Workspace.State.NORMAL; 2087 if (show && hasCustomContent()) { 2088 mWorkspaceScreens.get(CUSTOM_CONTENT_SCREEN_ID).setVisibility(VISIBLE); 2089 } 2090 } 2091 2092 void hideCustomContentIfNecessary() { 2093 boolean hide = mState != Workspace.State.NORMAL; 2094 if (hide && hasCustomContent()) { 2095 disableLayoutTransitions(); 2096 mWorkspaceScreens.get(CUSTOM_CONTENT_SCREEN_ID).setVisibility(INVISIBLE); 2097 enableLayoutTransitions(); 2098 } 2099 } 2100 2101 @Override 2102 public View getContent() { 2103 return this; 2104 } 2105 2106 /** 2107 * Returns the drawable for the given text view. 2108 */ 2109 public static Drawable getTextViewIcon(TextView tv) { 2110 final Drawable[] drawables = tv.getCompoundDrawables(); 2111 for (int i = 0; i < drawables.length; i++) { 2112 if (drawables[i] != null) { 2113 return drawables[i]; 2114 } 2115 } 2116 return null; 2117 } 2118 2119 /** 2120 * Draw the View v into the given Canvas. 2121 * 2122 * @param v the view to draw 2123 * @param destCanvas the canvas to draw on 2124 * @param padding the horizontal and vertical padding to use when drawing 2125 */ 2126 private static void drawDragView(View v, Canvas destCanvas, int padding) { 2127 final Rect clipRect = sTempRect; 2128 v.getDrawingRect(clipRect); 2129 2130 boolean textVisible = false; 2131 2132 destCanvas.save(); 2133 if (v instanceof TextView) { 2134 Drawable d = getTextViewIcon((TextView) v); 2135 Rect bounds = getDrawableBounds(d); 2136 clipRect.set(0, 0, bounds.width() + padding, bounds.height() + padding); 2137 destCanvas.translate(padding / 2 - bounds.left, padding / 2 - bounds.top); 2138 d.draw(destCanvas); 2139 } else { 2140 if (v instanceof FolderIcon) { 2141 // For FolderIcons the text can bleed into the icon area, and so we need to 2142 // hide the text completely (which can't be achieved by clipping). 2143 if (((FolderIcon) v).getTextVisible()) { 2144 ((FolderIcon) v).setTextVisible(false); 2145 textVisible = true; 2146 } 2147 } 2148 destCanvas.translate(-v.getScrollX() + padding / 2, -v.getScrollY() + padding / 2); 2149 destCanvas.clipRect(clipRect, Op.REPLACE); 2150 v.draw(destCanvas); 2151 2152 // Restore text visibility of FolderIcon if necessary 2153 if (textVisible) { 2154 ((FolderIcon) v).setTextVisible(true); 2155 } 2156 } 2157 destCanvas.restore(); 2158 } 2159 2160 /** 2161 * Returns a new bitmap to show when the given View is being dragged around. 2162 * Responsibility for the bitmap is transferred to the caller. 2163 * @param expectedPadding padding to add to the drag view. If a different padding was used 2164 * its value will be changed 2165 */ 2166 public Bitmap createDragBitmap(View v, AtomicInteger expectedPadding) { 2167 Bitmap b; 2168 2169 int padding = expectedPadding.get(); 2170 if (v instanceof TextView) { 2171 Drawable d = getTextViewIcon((TextView) v); 2172 Rect bounds = getDrawableBounds(d); 2173 b = Bitmap.createBitmap(bounds.width() + padding, 2174 bounds.height() + padding, Bitmap.Config.ARGB_8888); 2175 expectedPadding.set(padding - bounds.left - bounds.top); 2176 } else { 2177 b = Bitmap.createBitmap( 2178 v.getWidth() + padding, v.getHeight() + padding, Bitmap.Config.ARGB_8888); 2179 } 2180 2181 mCanvas.setBitmap(b); 2182 drawDragView(v, mCanvas, padding); 2183 mCanvas.setBitmap(null); 2184 2185 return b; 2186 } 2187 2188 /** 2189 * Returns a new bitmap to be used as the object outline, e.g. to visualize the drop location. 2190 * Responsibility for the bitmap is transferred to the caller. 2191 */ 2192 private Bitmap createDragOutline(View v, int padding) { 2193 final int outlineColor = getResources().getColor(R.color.outline_color); 2194 final Bitmap b = Bitmap.createBitmap( 2195 v.getWidth() + padding, v.getHeight() + padding, Bitmap.Config.ARGB_8888); 2196 2197 mCanvas.setBitmap(b); 2198 drawDragView(v, mCanvas, padding); 2199 mOutlineHelper.applyExpensiveOutlineWithBlur(b, mCanvas, outlineColor, outlineColor); 2200 mCanvas.setBitmap(null); 2201 return b; 2202 } 2203 2204 /** 2205 * Returns a new bitmap to be used as the object outline, e.g. to visualize the drop location. 2206 * Responsibility for the bitmap is transferred to the caller. 2207 */ 2208 private Bitmap createDragOutline(Bitmap orig, int padding, int w, int h, 2209 boolean clipAlpha) { 2210 final int outlineColor = getResources().getColor(R.color.outline_color); 2211 final Bitmap b = Bitmap.createBitmap(w, h, Bitmap.Config.ARGB_8888); 2212 mCanvas.setBitmap(b); 2213 2214 Rect src = new Rect(0, 0, orig.getWidth(), orig.getHeight()); 2215 float scaleFactor = Math.min((w - padding) / (float) orig.getWidth(), 2216 (h - padding) / (float) orig.getHeight()); 2217 int scaledWidth = (int) (scaleFactor * orig.getWidth()); 2218 int scaledHeight = (int) (scaleFactor * orig.getHeight()); 2219 Rect dst = new Rect(0, 0, scaledWidth, scaledHeight); 2220 2221 // center the image 2222 dst.offset((w - scaledWidth) / 2, (h - scaledHeight) / 2); 2223 2224 mCanvas.drawBitmap(orig, src, dst, null); 2225 mOutlineHelper.applyExpensiveOutlineWithBlur(b, mCanvas, outlineColor, outlineColor, 2226 clipAlpha); 2227 mCanvas.setBitmap(null); 2228 2229 return b; 2230 } 2231 2232 public void startDrag(CellLayout.CellInfo cellInfo) { 2233 startDrag(cellInfo, false); 2234 } 2235 2236 @Override 2237 public void startDrag(CellLayout.CellInfo cellInfo, boolean accessible) { 2238 View child = cellInfo.cell; 2239 2240 // Make sure the drag was started by a long press as opposed to a long click. 2241 if (!child.isInTouchMode()) { 2242 return; 2243 } 2244 2245 mDragInfo = cellInfo; 2246 child.setVisibility(INVISIBLE); 2247 CellLayout layout = (CellLayout) child.getParent().getParent(); 2248 layout.prepareChildForDrag(child); 2249 2250 beginDragShared(child, this, accessible); 2251 } 2252 2253 public void beginDragShared(View child, DragSource source, boolean accessible) { 2254 beginDragShared(child, new Point(), source, accessible); 2255 } 2256 2257 public void beginDragShared(View child, Point relativeTouchPos, DragSource source, 2258 boolean accessible) { 2259 child.clearFocus(); 2260 child.setPressed(false); 2261 2262 // The outline is used to visualize where the item will land if dropped 2263 mDragOutline = createDragOutline(child, DRAG_BITMAP_PADDING); 2264 2265 mLauncher.onDragStarted(child); 2266 // The drag bitmap follows the touch point around on the screen 2267 AtomicInteger padding = new AtomicInteger(DRAG_BITMAP_PADDING); 2268 final Bitmap b = createDragBitmap(child, padding); 2269 2270 final int bmpWidth = b.getWidth(); 2271 final int bmpHeight = b.getHeight(); 2272 2273 float scale = mLauncher.getDragLayer().getLocationInDragLayer(child, mTempXY); 2274 int dragLayerX = Math.round(mTempXY[0] - (bmpWidth - scale * child.getWidth()) / 2); 2275 int dragLayerY = Math.round(mTempXY[1] - (bmpHeight - scale * bmpHeight) / 2 2276 - padding.get() / 2); 2277 2278 DeviceProfile grid = mLauncher.getDeviceProfile(); 2279 Point dragVisualizeOffset = null; 2280 Rect dragRect = null; 2281 if (child instanceof BubbleTextView) { 2282 BubbleTextView icon = (BubbleTextView) child; 2283 int iconSize = grid.iconSizePx; 2284 int top = child.getPaddingTop(); 2285 int left = (bmpWidth - iconSize) / 2; 2286 int right = left + iconSize; 2287 int bottom = top + iconSize; 2288 if (icon.isLayoutHorizontal()) { 2289 // If the layout is horizontal, then if we are just picking up the icon, then just 2290 // use the child position since the icon is top-left aligned. Otherwise, offset 2291 // the drag layer position horizontally so that the icon is under the current 2292 // touch position. 2293 if (icon.getIcon().getBounds().contains(relativeTouchPos.x, relativeTouchPos.y)) { 2294 dragLayerX = Math.round(mTempXY[0]); 2295 } else { 2296 dragLayerX = Math.round(mTempXY[0] + relativeTouchPos.x - (bmpWidth / 2)); 2297 } 2298 } 2299 dragLayerY += top; 2300 // Note: The drag region is used to calculate drag layer offsets, but the 2301 // dragVisualizeOffset in addition to the dragRect (the size) to position the outline. 2302 dragVisualizeOffset = new Point(-padding.get() / 2, padding.get() / 2); 2303 dragRect = new Rect(left, top, right, bottom); 2304 } else if (child instanceof FolderIcon) { 2305 int previewSize = grid.folderIconSizePx; 2306 dragRect = new Rect(0, child.getPaddingTop(), child.getWidth(), previewSize); 2307 } 2308 2309 // Clear the pressed state if necessary 2310 if (child instanceof BubbleTextView) { 2311 BubbleTextView icon = (BubbleTextView) child; 2312 icon.clearPressedBackground(); 2313 } 2314 2315 if (child.getTag() == null || !(child.getTag() instanceof ItemInfo)) { 2316 String msg = "Drag started with a view that has no tag set. This " 2317 + "will cause a crash (issue 11627249) down the line. " 2318 + "View: " + child + " tag: " + child.getTag(); 2319 throw new IllegalStateException(msg); 2320 } 2321 2322 DragView dv = mDragController.startDrag(b, dragLayerX, dragLayerY, source, child.getTag(), 2323 DragController.DRAG_ACTION_MOVE, dragVisualizeOffset, dragRect, scale, accessible); 2324 dv.setIntrinsicIconScaleFactor(source.getIntrinsicIconScaleFactor()); 2325 2326 if (child.getParent() instanceof ShortcutAndWidgetContainer) { 2327 mDragSourceInternal = (ShortcutAndWidgetContainer) child.getParent(); 2328 } 2329 2330 b.recycle(); 2331 } 2332 2333 public void beginExternalDragShared(View child, DragSource source) { 2334 DeviceProfile grid = mLauncher.getDeviceProfile(); 2335 int iconSize = grid.iconSizePx; 2336 2337 // Notify launcher of drag start 2338 mLauncher.onDragStarted(child); 2339 2340 // Compose a new drag bitmap that is of the icon size 2341 AtomicInteger padding = new AtomicInteger(DRAG_BITMAP_PADDING); 2342 final Bitmap tmpB = createDragBitmap(child, padding); 2343 Bitmap b = Bitmap.createBitmap(iconSize, iconSize, Bitmap.Config.ARGB_8888); 2344 Paint p = new Paint(); 2345 p.setFilterBitmap(true); 2346 mCanvas.setBitmap(b); 2347 mCanvas.drawBitmap(tmpB, new Rect(0, 0, tmpB.getWidth(), tmpB.getHeight()), 2348 new Rect(0, 0, iconSize, iconSize), p); 2349 mCanvas.setBitmap(null); 2350 2351 // Find the child's location on the screen 2352 int bmpWidth = tmpB.getWidth(); 2353 float iconScale = (float) bmpWidth / iconSize; 2354 float scale = mLauncher.getDragLayer().getLocationInDragLayer(child, mTempXY) * iconScale; 2355 int dragLayerX = Math.round(mTempXY[0] - (bmpWidth - scale * child.getWidth()) / 2); 2356 int dragLayerY = Math.round(mTempXY[1]); 2357 2358 // Note: The drag region is used to calculate drag layer offsets, but the 2359 // dragVisualizeOffset in addition to the dragRect (the size) to position the outline. 2360 Point dragVisualizeOffset = new Point(-padding.get() / 2, padding.get() / 2); 2361 Rect dragRect = new Rect(0, 0, iconSize, iconSize); 2362 2363 if (child.getTag() == null || !(child.getTag() instanceof ItemInfo)) { 2364 String msg = "Drag started with a view that has no tag set. This " 2365 + "will cause a crash (issue 11627249) down the line. " 2366 + "View: " + child + " tag: " + child.getTag(); 2367 throw new IllegalStateException(msg); 2368 } 2369 2370 // Start the drag 2371 DragView dv = mDragController.startDrag(b, dragLayerX, dragLayerY, source, child.getTag(), 2372 DragController.DRAG_ACTION_MOVE, dragVisualizeOffset, dragRect, scale, false); 2373 dv.setIntrinsicIconScaleFactor(source.getIntrinsicIconScaleFactor()); 2374 2375 // Recycle temporary bitmaps 2376 tmpB.recycle(); 2377 } 2378 2379 public boolean transitionStateShouldAllowDrop() { 2380 return ((!isSwitchingState() || mTransitionProgress > 0.5f) && 2381 (mState == State.NORMAL || mState == State.SPRING_LOADED)); 2382 } 2383 2384 /** 2385 * {@inheritDoc} 2386 */ 2387 public boolean acceptDrop(DragObject d) { 2388 // If it's an external drop (e.g. from All Apps), check if it should be accepted 2389 CellLayout dropTargetLayout = mDropToLayout; 2390 if (d.dragSource != this) { 2391 // Don't accept the drop if we're not over a screen at time of drop 2392 if (dropTargetLayout == null) { 2393 return false; 2394 } 2395 if (!transitionStateShouldAllowDrop()) return false; 2396 2397 mDragViewVisualCenter = d.getVisualCenter(mDragViewVisualCenter); 2398 2399 // We want the point to be mapped to the dragTarget. 2400 if (mLauncher.isHotseatLayout(dropTargetLayout)) { 2401 mapPointFromSelfToHotseatLayout(mLauncher.getHotseat(), mDragViewVisualCenter); 2402 } else { 2403 mapPointFromSelfToChild(dropTargetLayout, mDragViewVisualCenter, null); 2404 } 2405 2406 int spanX = 1; 2407 int spanY = 1; 2408 if (mDragInfo != null) { 2409 final CellLayout.CellInfo dragCellInfo = mDragInfo; 2410 spanX = dragCellInfo.spanX; 2411 spanY = dragCellInfo.spanY; 2412 } else { 2413 final ItemInfo dragInfo = (ItemInfo) d.dragInfo; 2414 spanX = dragInfo.spanX; 2415 spanY = dragInfo.spanY; 2416 } 2417 2418 int minSpanX = spanX; 2419 int minSpanY = spanY; 2420 if (d.dragInfo instanceof PendingAddWidgetInfo) { 2421 minSpanX = ((PendingAddWidgetInfo) d.dragInfo).minSpanX; 2422 minSpanY = ((PendingAddWidgetInfo) d.dragInfo).minSpanY; 2423 } 2424 2425 mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], 2426 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, dropTargetLayout, 2427 mTargetCell); 2428 float distance = dropTargetLayout.getDistanceFromCell(mDragViewVisualCenter[0], 2429 mDragViewVisualCenter[1], mTargetCell); 2430 if (mCreateUserFolderOnDrop && willCreateUserFolder((ItemInfo) d.dragInfo, 2431 dropTargetLayout, mTargetCell, distance, true)) { 2432 return true; 2433 } 2434 2435 if (mAddToExistingFolderOnDrop && willAddToExistingUserFolder((ItemInfo) d.dragInfo, 2436 dropTargetLayout, mTargetCell, distance)) { 2437 return true; 2438 } 2439 2440 int[] resultSpan = new int[2]; 2441 mTargetCell = dropTargetLayout.performReorder((int) mDragViewVisualCenter[0], 2442 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, spanX, spanY, 2443 null, mTargetCell, resultSpan, CellLayout.MODE_ACCEPT_DROP); 2444 boolean foundCell = mTargetCell[0] >= 0 && mTargetCell[1] >= 0; 2445 2446 // Don't accept the drop if there's no room for the item 2447 if (!foundCell) { 2448 // Don't show the message if we are dropping on the AllApps button and the hotseat 2449 // is full 2450 boolean isHotseat = mLauncher.isHotseatLayout(dropTargetLayout); 2451 if (mTargetCell != null && isHotseat) { 2452 Hotseat hotseat = mLauncher.getHotseat(); 2453 if (hotseat.isAllAppsButtonRank( 2454 hotseat.getOrderInHotseat(mTargetCell[0], mTargetCell[1]))) { 2455 return false; 2456 } 2457 } 2458 2459 mLauncher.showOutOfSpaceMessage(isHotseat); 2460 return false; 2461 } 2462 } 2463 2464 long screenId = getIdForScreen(dropTargetLayout); 2465 if (screenId == EXTRA_EMPTY_SCREEN_ID) { 2466 commitExtraEmptyScreen(); 2467 } 2468 2469 return true; 2470 } 2471 2472 boolean willCreateUserFolder(ItemInfo info, CellLayout target, int[] targetCell, float 2473 distance, boolean considerTimeout) { 2474 if (distance > mMaxDistanceForFolderCreation) return false; 2475 View dropOverView = target.getChildAt(targetCell[0], targetCell[1]); 2476 2477 if (dropOverView != null) { 2478 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) dropOverView.getLayoutParams(); 2479 if (lp.useTmpCoords && (lp.tmpCellX != lp.cellX || lp.tmpCellY != lp.tmpCellY)) { 2480 return false; 2481 } 2482 } 2483 2484 boolean hasntMoved = false; 2485 if (mDragInfo != null) { 2486 hasntMoved = dropOverView == mDragInfo.cell; 2487 } 2488 2489 if (dropOverView == null || hasntMoved || (considerTimeout && !mCreateUserFolderOnDrop)) { 2490 return false; 2491 } 2492 2493 boolean aboveShortcut = (dropOverView.getTag() instanceof ShortcutInfo); 2494 boolean willBecomeShortcut = 2495 (info.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPLICATION || 2496 info.itemType == LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT); 2497 2498 return (aboveShortcut && willBecomeShortcut); 2499 } 2500 2501 boolean willAddToExistingUserFolder(Object dragInfo, CellLayout target, int[] targetCell, 2502 float distance) { 2503 if (distance > mMaxDistanceForFolderCreation) return false; 2504 View dropOverView = target.getChildAt(targetCell[0], targetCell[1]); 2505 2506 if (dropOverView != null) { 2507 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) dropOverView.getLayoutParams(); 2508 if (lp.useTmpCoords && (lp.tmpCellX != lp.cellX || lp.tmpCellY != lp.tmpCellY)) { 2509 return false; 2510 } 2511 } 2512 2513 if (dropOverView instanceof FolderIcon) { 2514 FolderIcon fi = (FolderIcon) dropOverView; 2515 if (fi.acceptDrop(dragInfo)) { 2516 return true; 2517 } 2518 } 2519 return false; 2520 } 2521 2522 boolean createUserFolderIfNecessary(View newView, long container, CellLayout target, 2523 int[] targetCell, float distance, boolean external, DragView dragView, 2524 Runnable postAnimationRunnable) { 2525 if (distance > mMaxDistanceForFolderCreation) return false; 2526 View v = target.getChildAt(targetCell[0], targetCell[1]); 2527 2528 boolean hasntMoved = false; 2529 if (mDragInfo != null) { 2530 CellLayout cellParent = getParentCellLayoutForView(mDragInfo.cell); 2531 hasntMoved = (mDragInfo.cellX == targetCell[0] && 2532 mDragInfo.cellY == targetCell[1]) && (cellParent == target); 2533 } 2534 2535 if (v == null || hasntMoved || !mCreateUserFolderOnDrop) return false; 2536 mCreateUserFolderOnDrop = false; 2537 final long screenId = (targetCell == null) ? mDragInfo.screenId : getIdForScreen(target); 2538 2539 boolean aboveShortcut = (v.getTag() instanceof ShortcutInfo); 2540 boolean willBecomeShortcut = (newView.getTag() instanceof ShortcutInfo); 2541 2542 if (aboveShortcut && willBecomeShortcut) { 2543 ShortcutInfo sourceInfo = (ShortcutInfo) newView.getTag(); 2544 ShortcutInfo destInfo = (ShortcutInfo) v.getTag(); 2545 // if the drag started here, we need to remove it from the workspace 2546 if (!external) { 2547 getParentCellLayoutForView(mDragInfo.cell).removeView(mDragInfo.cell); 2548 } 2549 2550 Rect folderLocation = new Rect(); 2551 float scale = mLauncher.getDragLayer().getDescendantRectRelativeToSelf(v, folderLocation); 2552 target.removeView(v); 2553 2554 FolderIcon fi = 2555 mLauncher.addFolder(target, container, screenId, targetCell[0], targetCell[1]); 2556 destInfo.cellX = -1; 2557 destInfo.cellY = -1; 2558 sourceInfo.cellX = -1; 2559 sourceInfo.cellY = -1; 2560 2561 // If the dragView is null, we can't animate 2562 boolean animate = dragView != null; 2563 if (animate) { 2564 fi.performCreateAnimation(destInfo, v, sourceInfo, dragView, folderLocation, scale, 2565 postAnimationRunnable); 2566 } else { 2567 fi.addItem(destInfo); 2568 fi.addItem(sourceInfo); 2569 } 2570 return true; 2571 } 2572 return false; 2573 } 2574 2575 boolean addToExistingFolderIfNecessary(View newView, CellLayout target, int[] targetCell, 2576 float distance, DragObject d, boolean external) { 2577 if (distance > mMaxDistanceForFolderCreation) return false; 2578 2579 View dropOverView = target.getChildAt(targetCell[0], targetCell[1]); 2580 if (!mAddToExistingFolderOnDrop) return false; 2581 mAddToExistingFolderOnDrop = false; 2582 2583 if (dropOverView instanceof FolderIcon) { 2584 FolderIcon fi = (FolderIcon) dropOverView; 2585 if (fi.acceptDrop(d.dragInfo)) { 2586 fi.onDrop(d); 2587 2588 // if the drag started here, we need to remove it from the workspace 2589 if (!external) { 2590 getParentCellLayoutForView(mDragInfo.cell).removeView(mDragInfo.cell); 2591 } 2592 return true; 2593 } 2594 } 2595 return false; 2596 } 2597 2598 @Override 2599 public void prepareAccessibilityDrop() { } 2600 2601 public void onDrop(final DragObject d) { 2602 mDragViewVisualCenter = d.getVisualCenter(mDragViewVisualCenter); 2603 CellLayout dropTargetLayout = mDropToLayout; 2604 2605 // We want the point to be mapped to the dragTarget. 2606 if (dropTargetLayout != null) { 2607 if (mLauncher.isHotseatLayout(dropTargetLayout)) { 2608 mapPointFromSelfToHotseatLayout(mLauncher.getHotseat(), mDragViewVisualCenter); 2609 } else { 2610 mapPointFromSelfToChild(dropTargetLayout, mDragViewVisualCenter, null); 2611 } 2612 } 2613 2614 int snapScreen = WorkspaceStateTransitionAnimation.SCROLL_TO_CURRENT_PAGE; 2615 boolean resizeOnDrop = false; 2616 if (d.dragSource != this) { 2617 final int[] touchXY = new int[] { (int) mDragViewVisualCenter[0], 2618 (int) mDragViewVisualCenter[1] }; 2619 onDropExternal(touchXY, d.dragInfo, dropTargetLayout, false, d); 2620 } else if (mDragInfo != null) { 2621 final View cell = mDragInfo.cell; 2622 2623 Runnable resizeRunnable = null; 2624 if (dropTargetLayout != null && !d.cancelled) { 2625 // Move internally 2626 boolean hasMovedLayouts = (getParentCellLayoutForView(cell) != dropTargetLayout); 2627 boolean hasMovedIntoHotseat = mLauncher.isHotseatLayout(dropTargetLayout); 2628 long container = hasMovedIntoHotseat ? 2629 LauncherSettings.Favorites.CONTAINER_HOTSEAT : 2630 LauncherSettings.Favorites.CONTAINER_DESKTOP; 2631 long screenId = (mTargetCell[0] < 0) ? 2632 mDragInfo.screenId : getIdForScreen(dropTargetLayout); 2633 int spanX = mDragInfo != null ? mDragInfo.spanX : 1; 2634 int spanY = mDragInfo != null ? mDragInfo.spanY : 1; 2635 // First we find the cell nearest to point at which the item is 2636 // dropped, without any consideration to whether there is an item there. 2637 2638 mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], (int) 2639 mDragViewVisualCenter[1], spanX, spanY, dropTargetLayout, mTargetCell); 2640 float distance = dropTargetLayout.getDistanceFromCell(mDragViewVisualCenter[0], 2641 mDragViewVisualCenter[1], mTargetCell); 2642 2643 // If the item being dropped is a shortcut and the nearest drop 2644 // cell also contains a shortcut, then create a folder with the two shortcuts. 2645 if (!mInScrollArea && createUserFolderIfNecessary(cell, container, 2646 dropTargetLayout, mTargetCell, distance, false, d.dragView, null)) { 2647 return; 2648 } 2649 2650 if (addToExistingFolderIfNecessary(cell, dropTargetLayout, mTargetCell, 2651 distance, d, false)) { 2652 return; 2653 } 2654 2655 // Aside from the special case where we're dropping a shortcut onto a shortcut, 2656 // we need to find the nearest cell location that is vacant 2657 ItemInfo item = (ItemInfo) d.dragInfo; 2658 int minSpanX = item.spanX; 2659 int minSpanY = item.spanY; 2660 if (item.minSpanX > 0 && item.minSpanY > 0) { 2661 minSpanX = item.minSpanX; 2662 minSpanY = item.minSpanY; 2663 } 2664 2665 int[] resultSpan = new int[2]; 2666 mTargetCell = dropTargetLayout.performReorder((int) mDragViewVisualCenter[0], 2667 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, spanX, spanY, cell, 2668 mTargetCell, resultSpan, CellLayout.MODE_ON_DROP); 2669 2670 boolean foundCell = mTargetCell[0] >= 0 && mTargetCell[1] >= 0; 2671 2672 // if the widget resizes on drop 2673 if (foundCell && (cell instanceof AppWidgetHostView) && 2674 (resultSpan[0] != item.spanX || resultSpan[1] != item.spanY)) { 2675 resizeOnDrop = true; 2676 item.spanX = resultSpan[0]; 2677 item.spanY = resultSpan[1]; 2678 AppWidgetHostView awhv = (AppWidgetHostView) cell; 2679 AppWidgetResizeFrame.updateWidgetSizeRanges(awhv, mLauncher, resultSpan[0], 2680 resultSpan[1]); 2681 } 2682 2683 if (getScreenIdForPageIndex(mCurrentPage) != screenId && !hasMovedIntoHotseat) { 2684 snapScreen = getPageIndexForScreenId(screenId); 2685 snapToPage(snapScreen); 2686 } 2687 2688 if (foundCell) { 2689 final ItemInfo info = (ItemInfo) cell.getTag(); 2690 if (hasMovedLayouts) { 2691 // Reparent the view 2692 CellLayout parentCell = getParentCellLayoutForView(cell); 2693 if (parentCell != null) { 2694 parentCell.removeView(cell); 2695 } else if (LauncherAppState.isDogfoodBuild()) { 2696 throw new NullPointerException("mDragInfo.cell has null parent"); 2697 } 2698 addInScreen(cell, container, screenId, mTargetCell[0], mTargetCell[1], 2699 info.spanX, info.spanY); 2700 } 2701 2702 // update the item's position after drop 2703 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) cell.getLayoutParams(); 2704 lp.cellX = lp.tmpCellX = mTargetCell[0]; 2705 lp.cellY = lp.tmpCellY = mTargetCell[1]; 2706 lp.cellHSpan = item.spanX; 2707 lp.cellVSpan = item.spanY; 2708 lp.isLockedToGrid = true; 2709 2710 if (container != LauncherSettings.Favorites.CONTAINER_HOTSEAT && 2711 cell instanceof LauncherAppWidgetHostView) { 2712 final CellLayout cellLayout = dropTargetLayout; 2713 // We post this call so that the widget has a chance to be placed 2714 // in its final location 2715 2716 final LauncherAppWidgetHostView hostView = (LauncherAppWidgetHostView) cell; 2717 AppWidgetProviderInfo pInfo = hostView.getAppWidgetInfo(); 2718 if (pInfo != null && pInfo.resizeMode != AppWidgetProviderInfo.RESIZE_NONE 2719 && !d.accessibleDrag) { 2720 final Runnable addResizeFrame = new Runnable() { 2721 public void run() { 2722 DragLayer dragLayer = mLauncher.getDragLayer(); 2723 dragLayer.addResizeFrame(info, hostView, cellLayout); 2724 } 2725 }; 2726 resizeRunnable = (new Runnable() { 2727 public void run() { 2728 if (!isPageMoving()) { 2729 addResizeFrame.run(); 2730 } else { 2731 mDelayedResizeRunnable = addResizeFrame; 2732 } 2733 } 2734 }); 2735 } 2736 } 2737 2738 LauncherModel.modifyItemInDatabase(mLauncher, info, container, screenId, lp.cellX, 2739 lp.cellY, item.spanX, item.spanY); 2740 } else { 2741 // If we can't find a drop location, we return the item to its original position 2742 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) cell.getLayoutParams(); 2743 mTargetCell[0] = lp.cellX; 2744 mTargetCell[1] = lp.cellY; 2745 CellLayout layout = (CellLayout) cell.getParent().getParent(); 2746 layout.markCellsAsOccupiedForView(cell); 2747 } 2748 } 2749 2750 final CellLayout parent = (CellLayout) cell.getParent().getParent(); 2751 final Runnable finalResizeRunnable = resizeRunnable; 2752 // Prepare it to be animated into its new position 2753 // This must be called after the view has been re-parented 2754 final Runnable onCompleteRunnable = new Runnable() { 2755 @Override 2756 public void run() { 2757 mAnimatingViewIntoPlace = false; 2758 updateChildrenLayersEnabled(false); 2759 if (finalResizeRunnable != null) { 2760 finalResizeRunnable.run(); 2761 } 2762 } 2763 }; 2764 mAnimatingViewIntoPlace = true; 2765 if (d.dragView.hasDrawn()) { 2766 final ItemInfo info = (ItemInfo) cell.getTag(); 2767 boolean isWidget = info.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET 2768 || info.itemType == LauncherSettings.Favorites.ITEM_TYPE_CUSTOM_APPWIDGET; 2769 if (isWidget) { 2770 int animationType = resizeOnDrop ? ANIMATE_INTO_POSITION_AND_RESIZE : 2771 ANIMATE_INTO_POSITION_AND_DISAPPEAR; 2772 animateWidgetDrop(info, parent, d.dragView, 2773 onCompleteRunnable, animationType, cell, false); 2774 } else { 2775 int duration = snapScreen < 0 ? 2776 WorkspaceStateTransitionAnimation.SCROLL_TO_CURRENT_PAGE : 2777 ADJACENT_SCREEN_DROP_DURATION; 2778 mLauncher.getDragLayer().animateViewIntoPosition(d.dragView, cell, duration, 2779 onCompleteRunnable, this); 2780 } 2781 } else { 2782 d.deferDragViewCleanupPostAnimation = false; 2783 cell.setVisibility(VISIBLE); 2784 } 2785 parent.onDropChild(cell); 2786 } 2787 } 2788 2789 public void setFinalScrollForPageChange(int pageIndex) { 2790 CellLayout cl = (CellLayout) getChildAt(pageIndex); 2791 if (cl != null) { 2792 mSavedScrollX = getScrollX(); 2793 mSavedTranslationX = cl.getTranslationX(); 2794 mSavedRotationY = cl.getRotationY(); 2795 final int newX = getScrollForPage(pageIndex); 2796 setScrollX(newX); 2797 cl.setTranslationX(0f); 2798 cl.setRotationY(0f); 2799 } 2800 } 2801 2802 public void resetFinalScrollForPageChange(int pageIndex) { 2803 if (pageIndex >= 0) { 2804 CellLayout cl = (CellLayout) getChildAt(pageIndex); 2805 setScrollX(mSavedScrollX); 2806 cl.setTranslationX(mSavedTranslationX); 2807 cl.setRotationY(mSavedRotationY); 2808 } 2809 } 2810 2811 public void getViewLocationRelativeToSelf(View v, int[] location) { 2812 getLocationInWindow(location); 2813 int x = location[0]; 2814 int y = location[1]; 2815 2816 v.getLocationInWindow(location); 2817 int vX = location[0]; 2818 int vY = location[1]; 2819 2820 location[0] = vX - x; 2821 location[1] = vY - y; 2822 } 2823 2824 public void onDragEnter(DragObject d) { 2825 mDragEnforcer.onDragEnter(); 2826 mCreateUserFolderOnDrop = false; 2827 mAddToExistingFolderOnDrop = false; 2828 2829 mDropToLayout = null; 2830 CellLayout layout = getCurrentDropLayout(); 2831 setCurrentDropLayout(layout); 2832 setCurrentDragOverlappingLayout(layout); 2833 2834 if (!workspaceInModalState()) { 2835 mLauncher.getDragLayer().showPageHints(); 2836 } 2837 } 2838 2839 /** Return a rect that has the cellWidth/cellHeight (left, top), and 2840 * widthGap/heightGap (right, bottom) */ 2841 static Rect getCellLayoutMetrics(Launcher launcher, int orientation) { 2842 LauncherAppState app = LauncherAppState.getInstance(); 2843 InvariantDeviceProfile inv = app.getInvariantDeviceProfile(); 2844 2845 Display display = launcher.getWindowManager().getDefaultDisplay(); 2846 Point smallestSize = new Point(); 2847 Point largestSize = new Point(); 2848 display.getCurrentSizeRange(smallestSize, largestSize); 2849 int countX = (int) inv.numColumns; 2850 int countY = (int) inv.numRows; 2851 boolean isLayoutRtl = Utilities.isRtl(launcher.getResources()); 2852 if (orientation == CellLayout.LANDSCAPE) { 2853 if (mLandscapeCellLayoutMetrics == null) { 2854 Rect padding = inv.landscapeProfile.getWorkspacePadding(isLayoutRtl); 2855 int width = largestSize.x - padding.left - padding.right; 2856 int height = smallestSize.y - padding.top - padding.bottom; 2857 mLandscapeCellLayoutMetrics = new Rect(); 2858 mLandscapeCellLayoutMetrics.set( 2859 DeviceProfile.calculateCellWidth(width, countX), 2860 DeviceProfile.calculateCellHeight(height, countY), 0, 0); 2861 } 2862 return mLandscapeCellLayoutMetrics; 2863 } else if (orientation == CellLayout.PORTRAIT) { 2864 if (mPortraitCellLayoutMetrics == null) { 2865 Rect padding = inv.portraitProfile.getWorkspacePadding(isLayoutRtl); 2866 int width = smallestSize.x - padding.left - padding.right; 2867 int height = largestSize.y - padding.top - padding.bottom; 2868 mPortraitCellLayoutMetrics = new Rect(); 2869 mPortraitCellLayoutMetrics.set( 2870 DeviceProfile.calculateCellWidth(width, countX), 2871 DeviceProfile.calculateCellHeight(height, countY), 0, 0); 2872 } 2873 return mPortraitCellLayoutMetrics; 2874 } 2875 return null; 2876 } 2877 2878 public void onDragExit(DragObject d) { 2879 mDragEnforcer.onDragExit(); 2880 2881 // Here we store the final page that will be dropped to, if the workspace in fact 2882 // receives the drop 2883 if (mInScrollArea) { 2884 if (isPageMoving()) { 2885 // If the user drops while the page is scrolling, we should use that page as the 2886 // destination instead of the page that is being hovered over. 2887 mDropToLayout = (CellLayout) getPageAt(getNextPage()); 2888 } else { 2889 mDropToLayout = mDragOverlappingLayout; 2890 } 2891 } else { 2892 mDropToLayout = mDragTargetLayout; 2893 } 2894 2895 if (mDragMode == DRAG_MODE_CREATE_FOLDER) { 2896 mCreateUserFolderOnDrop = true; 2897 } else if (mDragMode == DRAG_MODE_ADD_TO_FOLDER) { 2898 mAddToExistingFolderOnDrop = true; 2899 } 2900 2901 // Reset the scroll area and previous drag target 2902 onResetScrollArea(); 2903 setCurrentDropLayout(null); 2904 setCurrentDragOverlappingLayout(null); 2905 2906 mSpringLoadedDragController.cancel(); 2907 2908 mLauncher.getDragLayer().hidePageHints(); 2909 } 2910 2911 void setCurrentDropLayout(CellLayout layout) { 2912 if (mDragTargetLayout != null) { 2913 mDragTargetLayout.revertTempState(); 2914 mDragTargetLayout.onDragExit(); 2915 } 2916 mDragTargetLayout = layout; 2917 if (mDragTargetLayout != null) { 2918 mDragTargetLayout.onDragEnter(); 2919 } 2920 cleanupReorder(true); 2921 cleanupFolderCreation(); 2922 setCurrentDropOverCell(-1, -1); 2923 } 2924 2925 void setCurrentDragOverlappingLayout(CellLayout layout) { 2926 if (mDragOverlappingLayout != null) { 2927 mDragOverlappingLayout.setIsDragOverlapping(false); 2928 } 2929 mDragOverlappingLayout = layout; 2930 if (mDragOverlappingLayout != null) { 2931 mDragOverlappingLayout.setIsDragOverlapping(true); 2932 } 2933 invalidate(); 2934 } 2935 2936 void setCurrentDropOverCell(int x, int y) { 2937 if (x != mDragOverX || y != mDragOverY) { 2938 mDragOverX = x; 2939 mDragOverY = y; 2940 setDragMode(DRAG_MODE_NONE); 2941 } 2942 } 2943 2944 void setDragMode(int dragMode) { 2945 if (dragMode != mDragMode) { 2946 if (dragMode == DRAG_MODE_NONE) { 2947 cleanupAddToFolder(); 2948 // We don't want to cancel the re-order alarm every time the target cell changes 2949 // as this feels to slow / unresponsive. 2950 cleanupReorder(false); 2951 cleanupFolderCreation(); 2952 } else if (dragMode == DRAG_MODE_ADD_TO_FOLDER) { 2953 cleanupReorder(true); 2954 cleanupFolderCreation(); 2955 } else if (dragMode == DRAG_MODE_CREATE_FOLDER) { 2956 cleanupAddToFolder(); 2957 cleanupReorder(true); 2958 } else if (dragMode == DRAG_MODE_REORDER) { 2959 cleanupAddToFolder(); 2960 cleanupFolderCreation(); 2961 } 2962 mDragMode = dragMode; 2963 } 2964 } 2965 2966 private void cleanupFolderCreation() { 2967 if (mDragFolderRingAnimator != null) { 2968 mDragFolderRingAnimator.animateToNaturalState(); 2969 mDragFolderRingAnimator = null; 2970 } 2971 mFolderCreationAlarm.setOnAlarmListener(null); 2972 mFolderCreationAlarm.cancelAlarm(); 2973 } 2974 2975 private void cleanupAddToFolder() { 2976 if (mDragOverFolderIcon != null) { 2977 mDragOverFolderIcon.onDragExit(null); 2978 mDragOverFolderIcon = null; 2979 } 2980 } 2981 2982 private void cleanupReorder(boolean cancelAlarm) { 2983 // Any pending reorders are canceled 2984 if (cancelAlarm) { 2985 mReorderAlarm.cancelAlarm(); 2986 } 2987 mLastReorderX = -1; 2988 mLastReorderY = -1; 2989 } 2990 2991 /* 2992 * 2993 * Convert the 2D coordinate xy from the parent View's coordinate space to this CellLayout's 2994 * coordinate space. The argument xy is modified with the return result. 2995 * 2996 * if cachedInverseMatrix is not null, this method will just use that matrix instead of 2997 * computing it itself; we use this to avoid redundant matrix inversions in 2998 * findMatchingPageForDragOver 2999 * 3000 */ 3001 void mapPointFromSelfToChild(View v, float[] xy, Matrix cachedInverseMatrix) { 3002 xy[0] = xy[0] - v.getLeft(); 3003 xy[1] = xy[1] - v.getTop(); 3004 } 3005 3006 boolean isPointInSelfOverHotseat(int x, int y, Rect r) { 3007 if (r == null) { 3008 r = new Rect(); 3009 } 3010 mTempPt[0] = x; 3011 mTempPt[1] = y; 3012 mLauncher.getDragLayer().getDescendantCoordRelativeToSelf(this, mTempPt, true); 3013 3014 DeviceProfile grid = mLauncher.getDeviceProfile(); 3015 r = grid.getHotseatRect(); 3016 if (r.contains(mTempPt[0], mTempPt[1])) { 3017 return true; 3018 } 3019 return false; 3020 } 3021 3022 void mapPointFromSelfToHotseatLayout(Hotseat hotseat, float[] xy) { 3023 mTempPt[0] = (int) xy[0]; 3024 mTempPt[1] = (int) xy[1]; 3025 mLauncher.getDragLayer().getDescendantCoordRelativeToSelf(this, mTempPt, true); 3026 mLauncher.getDragLayer().mapCoordInSelfToDescendent(hotseat.getLayout(), mTempPt); 3027 3028 xy[0] = mTempPt[0]; 3029 xy[1] = mTempPt[1]; 3030 } 3031 3032 /* 3033 * 3034 * Convert the 2D coordinate xy from this CellLayout's coordinate space to 3035 * the parent View's coordinate space. The argument xy is modified with the return result. 3036 * 3037 */ 3038 void mapPointFromChildToSelf(View v, float[] xy) { 3039 xy[0] += v.getLeft(); 3040 xy[1] += v.getTop(); 3041 } 3042 3043 static private float squaredDistance(float[] point1, float[] point2) { 3044 float distanceX = point1[0] - point2[0]; 3045 float distanceY = point2[1] - point2[1]; 3046 return distanceX * distanceX + distanceY * distanceY; 3047 } 3048 3049 /* 3050 * 3051 * This method returns the CellLayout that is currently being dragged to. In order to drag 3052 * to a CellLayout, either the touch point must be directly over the CellLayout, or as a second 3053 * strategy, we see if the dragView is overlapping any CellLayout and choose the closest one 3054 * 3055 * Return null if no CellLayout is currently being dragged over 3056 * 3057 */ 3058 private CellLayout findMatchingPageForDragOver( 3059 DragView dragView, float originX, float originY, boolean exact) { 3060 // We loop through all the screens (ie CellLayouts) and see which ones overlap 3061 // with the item being dragged and then choose the one that's closest to the touch point 3062 final int screenCount = getChildCount(); 3063 CellLayout bestMatchingScreen = null; 3064 float smallestDistSoFar = Float.MAX_VALUE; 3065 3066 for (int i = 0; i < screenCount; i++) { 3067 // The custom content screen is not a valid drag over option 3068 if (mScreenOrder.get(i) == CUSTOM_CONTENT_SCREEN_ID) { 3069 continue; 3070 } 3071 3072 CellLayout cl = (CellLayout) getChildAt(i); 3073 3074 final float[] touchXy = {originX, originY}; 3075 // Transform the touch coordinates to the CellLayout's local coordinates 3076 // If the touch point is within the bounds of the cell layout, we can return immediately 3077 cl.getMatrix().invert(mTempInverseMatrix); 3078 mapPointFromSelfToChild(cl, touchXy, mTempInverseMatrix); 3079 3080 if (touchXy[0] >= 0 && touchXy[0] <= cl.getWidth() && 3081 touchXy[1] >= 0 && touchXy[1] <= cl.getHeight()) { 3082 return cl; 3083 } 3084 3085 if (!exact) { 3086 // Get the center of the cell layout in screen coordinates 3087 final float[] cellLayoutCenter = mTempCellLayoutCenterCoordinates; 3088 cellLayoutCenter[0] = cl.getWidth()/2; 3089 cellLayoutCenter[1] = cl.getHeight()/2; 3090 mapPointFromChildToSelf(cl, cellLayoutCenter); 3091 3092 touchXy[0] = originX; 3093 touchXy[1] = originY; 3094 3095 // Calculate the distance between the center of the CellLayout 3096 // and the touch point 3097 float dist = squaredDistance(touchXy, cellLayoutCenter); 3098 3099 if (dist < smallestDistSoFar) { 3100 smallestDistSoFar = dist; 3101 bestMatchingScreen = cl; 3102 } 3103 } 3104 } 3105 return bestMatchingScreen; 3106 } 3107 3108 private boolean isDragWidget(DragObject d) { 3109 return (d.dragInfo instanceof LauncherAppWidgetInfo || 3110 d.dragInfo instanceof PendingAddWidgetInfo); 3111 } 3112 private boolean isExternalDragWidget(DragObject d) { 3113 return d.dragSource != this && isDragWidget(d); 3114 } 3115 3116 public void onDragOver(DragObject d) { 3117 // Skip drag over events while we are dragging over side pages 3118 if (mInScrollArea || !transitionStateShouldAllowDrop()) return; 3119 3120 Rect r = new Rect(); 3121 CellLayout layout = null; 3122 ItemInfo item = (ItemInfo) d.dragInfo; 3123 if (item == null) { 3124 if (LauncherAppState.isDogfoodBuild()) { 3125 throw new NullPointerException("DragObject has null info"); 3126 } 3127 return; 3128 } 3129 3130 // Ensure that we have proper spans for the item that we are dropping 3131 if (item.spanX < 0 || item.spanY < 0) throw new RuntimeException("Improper spans found"); 3132 mDragViewVisualCenter = d.getVisualCenter(mDragViewVisualCenter); 3133 3134 final View child = (mDragInfo == null) ? null : mDragInfo.cell; 3135 // Identify whether we have dragged over a side page 3136 if (workspaceInModalState()) { 3137 if (mLauncher.getHotseat() != null && !isExternalDragWidget(d)) { 3138 if (isPointInSelfOverHotseat(d.x, d.y, r)) { 3139 layout = mLauncher.getHotseat().getLayout(); 3140 } 3141 } 3142 if (layout == null) { 3143 layout = findMatchingPageForDragOver(d.dragView, d.x, d.y, false); 3144 } 3145 if (layout != mDragTargetLayout) { 3146 setCurrentDropLayout(layout); 3147 setCurrentDragOverlappingLayout(layout); 3148 3149 boolean isInSpringLoadedMode = (mState == State.SPRING_LOADED); 3150 if (isInSpringLoadedMode) { 3151 if (mLauncher.isHotseatLayout(layout)) { 3152 mSpringLoadedDragController.cancel(); 3153 } else { 3154 mSpringLoadedDragController.setAlarm(mDragTargetLayout); 3155 } 3156 } 3157 } 3158 } else { 3159 // Test to see if we are over the hotseat otherwise just use the current page 3160 if (mLauncher.getHotseat() != null && !isDragWidget(d)) { 3161 if (isPointInSelfOverHotseat(d.x, d.y, r)) { 3162 layout = mLauncher.getHotseat().getLayout(); 3163 } 3164 } 3165 if (layout == null) { 3166 layout = getCurrentDropLayout(); 3167 } 3168 if (layout != mDragTargetLayout) { 3169 setCurrentDropLayout(layout); 3170 setCurrentDragOverlappingLayout(layout); 3171 } 3172 } 3173 3174 // Handle the drag over 3175 if (mDragTargetLayout != null) { 3176 // We want the point to be mapped to the dragTarget. 3177 if (mLauncher.isHotseatLayout(mDragTargetLayout)) { 3178 mapPointFromSelfToHotseatLayout(mLauncher.getHotseat(), mDragViewVisualCenter); 3179 } else { 3180 mapPointFromSelfToChild(mDragTargetLayout, mDragViewVisualCenter, null); 3181 } 3182 3183 ItemInfo info = (ItemInfo) d.dragInfo; 3184 3185 int minSpanX = item.spanX; 3186 int minSpanY = item.spanY; 3187 if (item.minSpanX > 0 && item.minSpanY > 0) { 3188 minSpanX = item.minSpanX; 3189 minSpanY = item.minSpanY; 3190 } 3191 3192 mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], 3193 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, 3194 mDragTargetLayout, mTargetCell); 3195 int reorderX = mTargetCell[0]; 3196 int reorderY = mTargetCell[1]; 3197 3198 setCurrentDropOverCell(mTargetCell[0], mTargetCell[1]); 3199 3200 float targetCellDistance = mDragTargetLayout.getDistanceFromCell( 3201 mDragViewVisualCenter[0], mDragViewVisualCenter[1], mTargetCell); 3202 3203 final View dragOverView = mDragTargetLayout.getChildAt(mTargetCell[0], 3204 mTargetCell[1]); 3205 3206 manageFolderFeedback(info, mDragTargetLayout, mTargetCell, 3207 targetCellDistance, dragOverView, d.accessibleDrag); 3208 3209 boolean nearestDropOccupied = mDragTargetLayout.isNearestDropLocationOccupied((int) 3210 mDragViewVisualCenter[0], (int) mDragViewVisualCenter[1], item.spanX, 3211 item.spanY, child, mTargetCell); 3212 3213 if (!nearestDropOccupied) { 3214 mDragTargetLayout.visualizeDropLocation(child, mDragOutline, 3215 (int) mDragViewVisualCenter[0], (int) mDragViewVisualCenter[1], 3216 mTargetCell[0], mTargetCell[1], item.spanX, item.spanY, false, 3217 d.dragView.getDragVisualizeOffset(), d.dragView.getDragRegion()); 3218 } else if ((mDragMode == DRAG_MODE_NONE || mDragMode == DRAG_MODE_REORDER) 3219 && !mReorderAlarm.alarmPending() && (mLastReorderX != reorderX || 3220 mLastReorderY != reorderY)) { 3221 3222 int[] resultSpan = new int[2]; 3223 mDragTargetLayout.performReorder((int) mDragViewVisualCenter[0], 3224 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, item.spanX, item.spanY, 3225 child, mTargetCell, resultSpan, CellLayout.MODE_SHOW_REORDER_HINT); 3226 3227 // Otherwise, if we aren't adding to or creating a folder and there's no pending 3228 // reorder, then we schedule a reorder 3229 ReorderAlarmListener listener = new ReorderAlarmListener(mDragViewVisualCenter, 3230 minSpanX, minSpanY, item.spanX, item.spanY, d.dragView, child); 3231 mReorderAlarm.setOnAlarmListener(listener); 3232 mReorderAlarm.setAlarm(REORDER_TIMEOUT); 3233 } 3234 3235 if (mDragMode == DRAG_MODE_CREATE_FOLDER || mDragMode == DRAG_MODE_ADD_TO_FOLDER || 3236 !nearestDropOccupied) { 3237 if (mDragTargetLayout != null) { 3238 mDragTargetLayout.revertTempState(); 3239 } 3240 } 3241 } 3242 } 3243 3244 private void manageFolderFeedback(ItemInfo info, CellLayout targetLayout, 3245 int[] targetCell, float distance, View dragOverView, boolean accessibleDrag) { 3246 boolean userFolderPending = willCreateUserFolder(info, targetLayout, targetCell, distance, 3247 false); 3248 if (mDragMode == DRAG_MODE_NONE && userFolderPending && 3249 !mFolderCreationAlarm.alarmPending()) { 3250 3251 FolderCreationAlarmListener listener = new 3252 FolderCreationAlarmListener(targetLayout, targetCell[0], targetCell[1]); 3253 3254 if (!accessibleDrag) { 3255 mFolderCreationAlarm.setOnAlarmListener(listener); 3256 mFolderCreationAlarm.setAlarm(FOLDER_CREATION_TIMEOUT); 3257 } else { 3258 listener.onAlarm(mFolderCreationAlarm); 3259 } 3260 return; 3261 } 3262 3263 boolean willAddToFolder = 3264 willAddToExistingUserFolder(info, targetLayout, targetCell, distance); 3265 3266 if (willAddToFolder && mDragMode == DRAG_MODE_NONE) { 3267 mDragOverFolderIcon = ((FolderIcon) dragOverView); 3268 mDragOverFolderIcon.onDragEnter(info); 3269 if (targetLayout != null) { 3270 targetLayout.clearDragOutlines(); 3271 } 3272 setDragMode(DRAG_MODE_ADD_TO_FOLDER); 3273 return; 3274 } 3275 3276 if (mDragMode == DRAG_MODE_ADD_TO_FOLDER && !willAddToFolder) { 3277 setDragMode(DRAG_MODE_NONE); 3278 } 3279 if (mDragMode == DRAG_MODE_CREATE_FOLDER && !userFolderPending) { 3280 setDragMode(DRAG_MODE_NONE); 3281 } 3282 3283 return; 3284 } 3285 3286 class FolderCreationAlarmListener implements OnAlarmListener { 3287 CellLayout layout; 3288 int cellX; 3289 int cellY; 3290 3291 public FolderCreationAlarmListener(CellLayout layout, int cellX, int cellY) { 3292 this.layout = layout; 3293 this.cellX = cellX; 3294 this.cellY = cellY; 3295 } 3296 3297 public void onAlarm(Alarm alarm) { 3298 if (mDragFolderRingAnimator != null) { 3299 // This shouldn't happen ever, but just in case, make sure we clean up the mess. 3300 mDragFolderRingAnimator.animateToNaturalState(); 3301 } 3302 mDragFolderRingAnimator = new FolderRingAnimator(mLauncher, null); 3303 mDragFolderRingAnimator.setCell(cellX, cellY); 3304 mDragFolderRingAnimator.setCellLayout(layout); 3305 mDragFolderRingAnimator.animateToAcceptState(); 3306 layout.showFolderAccept(mDragFolderRingAnimator); 3307 layout.clearDragOutlines(); 3308 setDragMode(DRAG_MODE_CREATE_FOLDER); 3309 } 3310 } 3311 3312 class ReorderAlarmListener implements OnAlarmListener { 3313 float[] dragViewCenter; 3314 int minSpanX, minSpanY, spanX, spanY; 3315 DragView dragView; 3316 View child; 3317 3318 public ReorderAlarmListener(float[] dragViewCenter, int minSpanX, int minSpanY, int spanX, 3319 int spanY, DragView dragView, View child) { 3320 this.dragViewCenter = dragViewCenter; 3321 this.minSpanX = minSpanX; 3322 this.minSpanY = minSpanY; 3323 this.spanX = spanX; 3324 this.spanY = spanY; 3325 this.child = child; 3326 this.dragView = dragView; 3327 } 3328 3329 public void onAlarm(Alarm alarm) { 3330 int[] resultSpan = new int[2]; 3331 mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], 3332 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, mDragTargetLayout, 3333 mTargetCell); 3334 mLastReorderX = mTargetCell[0]; 3335 mLastReorderY = mTargetCell[1]; 3336 3337 mTargetCell = mDragTargetLayout.performReorder((int) mDragViewVisualCenter[0], 3338 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, spanX, spanY, 3339 child, mTargetCell, resultSpan, CellLayout.MODE_DRAG_OVER); 3340 3341 if (mTargetCell[0] < 0 || mTargetCell[1] < 0) { 3342 mDragTargetLayout.revertTempState(); 3343 } else { 3344 setDragMode(DRAG_MODE_REORDER); 3345 } 3346 3347 boolean resize = resultSpan[0] != spanX || resultSpan[1] != spanY; 3348 mDragTargetLayout.visualizeDropLocation(child, mDragOutline, 3349 (int) mDragViewVisualCenter[0], (int) mDragViewVisualCenter[1], 3350 mTargetCell[0], mTargetCell[1], resultSpan[0], resultSpan[1], resize, 3351 dragView.getDragVisualizeOffset(), dragView.getDragRegion()); 3352 } 3353 } 3354 3355 @Override 3356 public void getHitRectRelativeToDragLayer(Rect outRect) { 3357 // We want the workspace to have the whole area of the display (it will find the correct 3358 // cell layout to drop to in the existing drag/drop logic. 3359 mLauncher.getDragLayer().getDescendantRectRelativeToSelf(this, outRect); 3360 } 3361 3362 /** 3363 * Add the item specified by dragInfo to the given layout. 3364 * @return true if successful 3365 */ 3366 public boolean addExternalItemToScreen(ItemInfo dragInfo, CellLayout layout) { 3367 if (layout.findCellForSpan(mTempEstimate, dragInfo.spanX, dragInfo.spanY)) { 3368 onDropExternal(dragInfo.dropPos, (ItemInfo) dragInfo, (CellLayout) layout, false); 3369 return true; 3370 } 3371 mLauncher.showOutOfSpaceMessage(mLauncher.isHotseatLayout(layout)); 3372 return false; 3373 } 3374 3375 private void onDropExternal(int[] touchXY, Object dragInfo, 3376 CellLayout cellLayout, boolean insertAtFirst) { 3377 onDropExternal(touchXY, dragInfo, cellLayout, insertAtFirst, null); 3378 } 3379 3380 /** 3381 * Drop an item that didn't originate on one of the workspace screens. 3382 * It may have come from Launcher (e.g. from all apps or customize), or it may have 3383 * come from another app altogether. 3384 * 3385 * NOTE: This can also be called when we are outside of a drag event, when we want 3386 * to add an item to one of the workspace screens. 3387 */ 3388 private void onDropExternal(final int[] touchXY, final Object dragInfo, 3389 final CellLayout cellLayout, boolean insertAtFirst, DragObject d) { 3390 final Runnable exitSpringLoadedRunnable = new Runnable() { 3391 @Override 3392 public void run() { 3393 mLauncher.exitSpringLoadedDragModeDelayed(true, 3394 Launcher.EXIT_SPRINGLOADED_MODE_SHORT_TIMEOUT, null); 3395 } 3396 }; 3397 3398 ItemInfo info = (ItemInfo) dragInfo; 3399 int spanX = info.spanX; 3400 int spanY = info.spanY; 3401 if (mDragInfo != null) { 3402 spanX = mDragInfo.spanX; 3403 spanY = mDragInfo.spanY; 3404 } 3405 3406 final long container = mLauncher.isHotseatLayout(cellLayout) ? 3407 LauncherSettings.Favorites.CONTAINER_HOTSEAT : 3408 LauncherSettings.Favorites.CONTAINER_DESKTOP; 3409 final long screenId = getIdForScreen(cellLayout); 3410 if (!mLauncher.isHotseatLayout(cellLayout) 3411 && screenId != getScreenIdForPageIndex(mCurrentPage) 3412 && mState != State.SPRING_LOADED) { 3413 snapToScreenId(screenId, null); 3414 } 3415 3416 if (info instanceof PendingAddItemInfo) { 3417 final PendingAddItemInfo pendingInfo = (PendingAddItemInfo) dragInfo; 3418 3419 boolean findNearestVacantCell = true; 3420 if (pendingInfo.itemType == LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT) { 3421 mTargetCell = findNearestArea((int) touchXY[0], (int) touchXY[1], spanX, spanY, 3422 cellLayout, mTargetCell); 3423 float distance = cellLayout.getDistanceFromCell(mDragViewVisualCenter[0], 3424 mDragViewVisualCenter[1], mTargetCell); 3425 if (willCreateUserFolder((ItemInfo) d.dragInfo, cellLayout, mTargetCell, 3426 distance, true) || willAddToExistingUserFolder((ItemInfo) d.dragInfo, 3427 cellLayout, mTargetCell, distance)) { 3428 findNearestVacantCell = false; 3429 } 3430 } 3431 3432 final ItemInfo item = (ItemInfo) d.dragInfo; 3433 boolean updateWidgetSize = false; 3434 if (findNearestVacantCell) { 3435 int minSpanX = item.spanX; 3436 int minSpanY = item.spanY; 3437 if (item.minSpanX > 0 && item.minSpanY > 0) { 3438 minSpanX = item.minSpanX; 3439 minSpanY = item.minSpanY; 3440 } 3441 int[] resultSpan = new int[2]; 3442 mTargetCell = cellLayout.performReorder((int) mDragViewVisualCenter[0], 3443 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, info.spanX, info.spanY, 3444 null, mTargetCell, resultSpan, CellLayout.MODE_ON_DROP_EXTERNAL); 3445 3446 if (resultSpan[0] != item.spanX || resultSpan[1] != item.spanY) { 3447 updateWidgetSize = true; 3448 } 3449 item.spanX = resultSpan[0]; 3450 item.spanY = resultSpan[1]; 3451 } 3452 3453 Runnable onAnimationCompleteRunnable = new Runnable() { 3454 @Override 3455 public void run() { 3456 // Normally removeExtraEmptyScreen is called in Workspace#onDragEnd, but when 3457 // adding an item that may not be dropped right away (due to a config activity) 3458 // we defer the removal until the activity returns. 3459 deferRemoveExtraEmptyScreen(); 3460 3461 // When dragging and dropping from customization tray, we deal with creating 3462 // widgets/shortcuts/folders in a slightly different way 3463 mLauncher.addPendingItem(pendingInfo, container, screenId, mTargetCell, 3464 item.spanX, item.spanY); 3465 } 3466 }; 3467 boolean isWidget = pendingInfo.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET 3468 || pendingInfo.itemType == LauncherSettings.Favorites.ITEM_TYPE_CUSTOM_APPWIDGET; 3469 3470 View finalView = isWidget ? ((PendingAddWidgetInfo) pendingInfo).boundWidget : null; 3471 3472 if (finalView instanceof AppWidgetHostView && updateWidgetSize) { 3473 AppWidgetHostView awhv = (AppWidgetHostView) finalView; 3474 AppWidgetResizeFrame.updateWidgetSizeRanges(awhv, mLauncher, item.spanX, 3475 item.spanY); 3476 } 3477 3478 int animationStyle = ANIMATE_INTO_POSITION_AND_DISAPPEAR; 3479 if (isWidget && ((PendingAddWidgetInfo) pendingInfo).info != null && 3480 ((PendingAddWidgetInfo) pendingInfo).info.configure != null) { 3481 animationStyle = ANIMATE_INTO_POSITION_AND_REMAIN; 3482 } 3483 animateWidgetDrop(info, cellLayout, d.dragView, onAnimationCompleteRunnable, 3484 animationStyle, finalView, true); 3485 } else { 3486 // This is for other drag/drop cases, like dragging from All Apps 3487 View view = null; 3488 3489 switch (info.itemType) { 3490 case LauncherSettings.Favorites.ITEM_TYPE_APPLICATION: 3491 case LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT: 3492 if (info.container == NO_ID && info instanceof AppInfo) { 3493 // Came from all apps -- make a copy 3494 info = ((AppInfo) info).makeShortcut(); 3495 } 3496 view = mLauncher.createShortcut(cellLayout, (ShortcutInfo) info); 3497 break; 3498 case LauncherSettings.Favorites.ITEM_TYPE_FOLDER: 3499 view = FolderIcon.fromXml(R.layout.folder_icon, mLauncher, cellLayout, 3500 (FolderInfo) info, mIconCache); 3501 break; 3502 default: 3503 throw new IllegalStateException("Unknown item type: " + info.itemType); 3504 } 3505 3506 // First we find the cell nearest to point at which the item is 3507 // dropped, without any consideration to whether there is an item there. 3508 if (touchXY != null) { 3509 mTargetCell = findNearestArea((int) touchXY[0], (int) touchXY[1], spanX, spanY, 3510 cellLayout, mTargetCell); 3511 float distance = cellLayout.getDistanceFromCell(mDragViewVisualCenter[0], 3512 mDragViewVisualCenter[1], mTargetCell); 3513 d.postAnimationRunnable = exitSpringLoadedRunnable; 3514 if (createUserFolderIfNecessary(view, container, cellLayout, mTargetCell, distance, 3515 true, d.dragView, d.postAnimationRunnable)) { 3516 return; 3517 } 3518 if (addToExistingFolderIfNecessary(view, cellLayout, mTargetCell, distance, d, 3519 true)) { 3520 return; 3521 } 3522 } 3523 3524 if (touchXY != null) { 3525 // when dragging and dropping, just find the closest free spot 3526 mTargetCell = cellLayout.performReorder((int) mDragViewVisualCenter[0], 3527 (int) mDragViewVisualCenter[1], 1, 1, 1, 1, 3528 null, mTargetCell, null, CellLayout.MODE_ON_DROP_EXTERNAL); 3529 } else { 3530 cellLayout.findCellForSpan(mTargetCell, 1, 1); 3531 } 3532 // Add the item to DB before adding to screen ensures that the container and other 3533 // values of the info is properly updated. 3534 LauncherModel.addOrMoveItemInDatabase(mLauncher, info, container, screenId, 3535 mTargetCell[0], mTargetCell[1]); 3536 3537 addInScreen(view, container, screenId, mTargetCell[0], mTargetCell[1], info.spanX, 3538 info.spanY, insertAtFirst); 3539 cellLayout.onDropChild(view); 3540 cellLayout.getShortcutsAndWidgets().measureChild(view); 3541 3542 if (d.dragView != null) { 3543 // We wrap the animation call in the temporary set and reset of the current 3544 // cellLayout to its final transform -- this means we animate the drag view to 3545 // the correct final location. 3546 setFinalTransitionTransform(cellLayout); 3547 mLauncher.getDragLayer().animateViewIntoPosition(d.dragView, view, 3548 exitSpringLoadedRunnable, this); 3549 resetTransitionTransform(cellLayout); 3550 } 3551 } 3552 } 3553 3554 public Bitmap createWidgetBitmap(ItemInfo widgetInfo, View layout) { 3555 int[] unScaledSize = mLauncher.getWorkspace().estimateItemSize(widgetInfo, false); 3556 int visibility = layout.getVisibility(); 3557 layout.setVisibility(VISIBLE); 3558 3559 int width = MeasureSpec.makeMeasureSpec(unScaledSize[0], MeasureSpec.EXACTLY); 3560 int height = MeasureSpec.makeMeasureSpec(unScaledSize[1], MeasureSpec.EXACTLY); 3561 Bitmap b = Bitmap.createBitmap(unScaledSize[0], unScaledSize[1], 3562 Bitmap.Config.ARGB_8888); 3563 mCanvas.setBitmap(b); 3564 3565 layout.measure(width, height); 3566 layout.layout(0, 0, unScaledSize[0], unScaledSize[1]); 3567 layout.draw(mCanvas); 3568 mCanvas.setBitmap(null); 3569 layout.setVisibility(visibility); 3570 return b; 3571 } 3572 3573 private void getFinalPositionForDropAnimation(int[] loc, float[] scaleXY, 3574 DragView dragView, CellLayout layout, ItemInfo info, int[] targetCell, 3575 boolean external, boolean scale) { 3576 // Now we animate the dragView, (ie. the widget or shortcut preview) into its final 3577 // location and size on the home screen. 3578 int spanX = info.spanX; 3579 int spanY = info.spanY; 3580 3581 Rect r = estimateItemPosition(layout, info, targetCell[0], targetCell[1], spanX, spanY); 3582 loc[0] = r.left; 3583 loc[1] = r.top; 3584 3585 setFinalTransitionTransform(layout); 3586 float cellLayoutScale = 3587 mLauncher.getDragLayer().getDescendantCoordRelativeToSelf(layout, loc, true); 3588 resetTransitionTransform(layout); 3589 3590 float dragViewScaleX; 3591 float dragViewScaleY; 3592 if (scale) { 3593 dragViewScaleX = (1.0f * r.width()) / dragView.getMeasuredWidth(); 3594 dragViewScaleY = (1.0f * r.height()) / dragView.getMeasuredHeight(); 3595 } else { 3596 dragViewScaleX = 1f; 3597 dragViewScaleY = 1f; 3598 } 3599 3600 // The animation will scale the dragView about its center, so we need to center about 3601 // the final location. 3602 loc[0] -= (dragView.getMeasuredWidth() - cellLayoutScale * r.width()) / 2; 3603 loc[1] -= (dragView.getMeasuredHeight() - cellLayoutScale * r.height()) / 2; 3604 3605 scaleXY[0] = dragViewScaleX * cellLayoutScale; 3606 scaleXY[1] = dragViewScaleY * cellLayoutScale; 3607 } 3608 3609 public void animateWidgetDrop(ItemInfo info, CellLayout cellLayout, DragView dragView, 3610 final Runnable onCompleteRunnable, int animationType, final View finalView, 3611 boolean external) { 3612 Rect from = new Rect(); 3613 mLauncher.getDragLayer().getViewRectRelativeToSelf(dragView, from); 3614 3615 int[] finalPos = new int[2]; 3616 float scaleXY[] = new float[2]; 3617 boolean scalePreview = !(info instanceof PendingAddShortcutInfo); 3618 getFinalPositionForDropAnimation(finalPos, scaleXY, dragView, cellLayout, info, mTargetCell, 3619 external, scalePreview); 3620 3621 Resources res = mLauncher.getResources(); 3622 final int duration = res.getInteger(R.integer.config_dropAnimMaxDuration) - 200; 3623 3624 // In the case where we've prebound the widget, we remove it from the DragLayer 3625 if (finalView instanceof AppWidgetHostView && external) { 3626 mLauncher.getDragLayer().removeView(finalView); 3627 } 3628 3629 boolean isWidget = info.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET || 3630 info.itemType == LauncherSettings.Favorites.ITEM_TYPE_CUSTOM_APPWIDGET; 3631 if ((animationType == ANIMATE_INTO_POSITION_AND_RESIZE || external) && finalView != null) { 3632 Bitmap crossFadeBitmap = createWidgetBitmap(info, finalView); 3633 dragView.setCrossFadeBitmap(crossFadeBitmap); 3634 dragView.crossFade((int) (duration * 0.8f)); 3635 } else if (isWidget && external) { 3636 scaleXY[0] = scaleXY[1] = Math.min(scaleXY[0], scaleXY[1]); 3637 } 3638 3639 DragLayer dragLayer = mLauncher.getDragLayer(); 3640 if (animationType == CANCEL_TWO_STAGE_WIDGET_DROP_ANIMATION) { 3641 mLauncher.getDragLayer().animateViewIntoPosition(dragView, finalPos, 0f, 0.1f, 0.1f, 3642 DragLayer.ANIMATION_END_DISAPPEAR, onCompleteRunnable, duration); 3643 } else { 3644 int endStyle; 3645 if (animationType == ANIMATE_INTO_POSITION_AND_REMAIN) { 3646 endStyle = DragLayer.ANIMATION_END_REMAIN_VISIBLE; 3647 } else { 3648 endStyle = DragLayer.ANIMATION_END_DISAPPEAR;; 3649 } 3650 3651 Runnable onComplete = new Runnable() { 3652 @Override 3653 public void run() { 3654 if (finalView != null) { 3655 finalView.setVisibility(VISIBLE); 3656 } 3657 if (onCompleteRunnable != null) { 3658 onCompleteRunnable.run(); 3659 } 3660 } 3661 }; 3662 dragLayer.animateViewIntoPosition(dragView, from.left, from.top, finalPos[0], 3663 finalPos[1], 1, 1, 1, scaleXY[0], scaleXY[1], onComplete, endStyle, 3664 duration, this); 3665 } 3666 } 3667 3668 public void setFinalTransitionTransform(CellLayout layout) { 3669 if (isSwitchingState()) { 3670 mCurrentScale = getScaleX(); 3671 setScaleX(mStateTransitionAnimation.getFinalScale()); 3672 setScaleY(mStateTransitionAnimation.getFinalScale()); 3673 } 3674 } 3675 public void resetTransitionTransform(CellLayout layout) { 3676 if (isSwitchingState()) { 3677 setScaleX(mCurrentScale); 3678 setScaleY(mCurrentScale); 3679 } 3680 } 3681 3682 /** 3683 * Return the current {@link CellLayout}, correctly picking the destination 3684 * screen while a scroll is in progress. 3685 */ 3686 public CellLayout getCurrentDropLayout() { 3687 return (CellLayout) getChildAt(getNextPage()); 3688 } 3689 3690 /** 3691 * Return the current CellInfo describing our current drag; this method exists 3692 * so that Launcher can sync this object with the correct info when the activity is created/ 3693 * destroyed 3694 * 3695 */ 3696 public CellLayout.CellInfo getDragInfo() { 3697 return mDragInfo; 3698 } 3699 3700 public int getCurrentPageOffsetFromCustomContent() { 3701 return getNextPage() - numCustomPages(); 3702 } 3703 3704 /** 3705 * Calculate the nearest cell where the given object would be dropped. 3706 * 3707 * pixelX and pixelY should be in the coordinate system of layout 3708 */ 3709 @Thunk int[] findNearestArea(int pixelX, int pixelY, 3710 int spanX, int spanY, CellLayout layout, int[] recycle) { 3711 return layout.findNearestArea( 3712 pixelX, pixelY, spanX, spanY, recycle); 3713 } 3714 3715 void setup(DragController dragController) { 3716 mSpringLoadedDragController = new SpringLoadedDragController(mLauncher); 3717 mDragController = dragController; 3718 3719 // hardware layers on children are enabled on startup, but should be disabled until 3720 // needed 3721 updateChildrenLayersEnabled(false); 3722 } 3723 3724 /** 3725 * Called at the end of a drag which originated on the workspace. 3726 */ 3727 public void onDropCompleted(final View target, final DragObject d, 3728 final boolean isFlingToDelete, final boolean success) { 3729 if (mDeferDropAfterUninstall) { 3730 mDeferredAction = new Runnable() { 3731 public void run() { 3732 onDropCompleted(target, d, isFlingToDelete, success); 3733 mDeferredAction = null; 3734 } 3735 }; 3736 return; 3737 } 3738 3739 boolean beingCalledAfterUninstall = mDeferredAction != null; 3740 3741 if (success && !(beingCalledAfterUninstall && !mUninstallSuccessful)) { 3742 if (target != this && mDragInfo != null) { 3743 removeWorkspaceItem(mDragInfo.cell); 3744 } 3745 } else if (mDragInfo != null) { 3746 final CellLayout cellLayout = mLauncher.getCellLayout( 3747 mDragInfo.container, mDragInfo.screenId); 3748 if (cellLayout != null) { 3749 cellLayout.onDropChild(mDragInfo.cell); 3750 } else if (LauncherAppState.isDogfoodBuild()) { 3751 throw new RuntimeException("Invalid state: cellLayout == null in " 3752 + "Workspace#onDropCompleted. Please file a bug. "); 3753 }; 3754 } 3755 if ((d.cancelled || (beingCalledAfterUninstall && !mUninstallSuccessful)) 3756 && mDragInfo.cell != null) { 3757 mDragInfo.cell.setVisibility(VISIBLE); 3758 } 3759 mDragOutline = null; 3760 mDragInfo = null; 3761 } 3762 3763 /** 3764 * For opposite operation. See {@link #addInScreen}. 3765 */ 3766 public void removeWorkspaceItem(View v) { 3767 CellLayout parentCell = getParentCellLayoutForView(v); 3768 if (parentCell != null) { 3769 parentCell.removeView(v); 3770 } else if (LauncherAppState.isDogfoodBuild()) { 3771 throw new NullPointerException("mDragInfo.cell has null parent"); 3772 } 3773 if (v instanceof DropTarget) { 3774 mDragController.removeDropTarget((DropTarget) v); 3775 } 3776 } 3777 3778 @Override 3779 public void deferCompleteDropAfterUninstallActivity() { 3780 mDeferDropAfterUninstall = true; 3781 } 3782 3783 /// maybe move this into a smaller part 3784 @Override 3785 public void onUninstallActivityReturned(boolean success) { 3786 mDeferDropAfterUninstall = false; 3787 mUninstallSuccessful = success; 3788 if (mDeferredAction != null) { 3789 mDeferredAction.run(); 3790 } 3791 } 3792 3793 void updateItemLocationsInDatabase(CellLayout cl) { 3794 int count = cl.getShortcutsAndWidgets().getChildCount(); 3795 3796 long screenId = getIdForScreen(cl); 3797 int container = Favorites.CONTAINER_DESKTOP; 3798 3799 if (mLauncher.isHotseatLayout(cl)) { 3800 screenId = -1; 3801 container = Favorites.CONTAINER_HOTSEAT; 3802 } 3803 3804 for (int i = 0; i < count; i++) { 3805 View v = cl.getShortcutsAndWidgets().getChildAt(i); 3806 ItemInfo info = (ItemInfo) v.getTag(); 3807 // Null check required as the AllApps button doesn't have an item info 3808 if (info != null && info.requiresDbUpdate) { 3809 info.requiresDbUpdate = false; 3810 LauncherModel.modifyItemInDatabase(mLauncher, info, container, screenId, info.cellX, 3811 info.cellY, info.spanX, info.spanY); 3812 } 3813 } 3814 } 3815 3816 void saveWorkspaceToDb() { 3817 saveWorkspaceScreenToDb((CellLayout) mLauncher.getHotseat().getLayout()); 3818 int count = getChildCount(); 3819 for (int i = 0; i < count; i++) { 3820 CellLayout cl = (CellLayout) getChildAt(i); 3821 saveWorkspaceScreenToDb(cl); 3822 } 3823 } 3824 3825 void saveWorkspaceScreenToDb(CellLayout cl) { 3826 int count = cl.getShortcutsAndWidgets().getChildCount(); 3827 3828 long screenId = getIdForScreen(cl); 3829 int container = Favorites.CONTAINER_DESKTOP; 3830 3831 Hotseat hotseat = mLauncher.getHotseat(); 3832 if (mLauncher.isHotseatLayout(cl)) { 3833 screenId = -1; 3834 container = Favorites.CONTAINER_HOTSEAT; 3835 } 3836 3837 for (int i = 0; i < count; i++) { 3838 View v = cl.getShortcutsAndWidgets().getChildAt(i); 3839 ItemInfo info = (ItemInfo) v.getTag(); 3840 // Null check required as the AllApps button doesn't have an item info 3841 if (info != null) { 3842 int cellX = info.cellX; 3843 int cellY = info.cellY; 3844 if (container == Favorites.CONTAINER_HOTSEAT) { 3845 cellX = hotseat.getCellXFromOrder((int) info.screenId); 3846 cellY = hotseat.getCellYFromOrder((int) info.screenId); 3847 } 3848 LauncherModel.addItemToDatabase(mLauncher, info, container, screenId, cellX, cellY); 3849 } 3850 if (v instanceof FolderIcon) { 3851 FolderIcon fi = (FolderIcon) v; 3852 fi.getFolder().addItemLocationsInDatabase(); 3853 } 3854 } 3855 } 3856 3857 @Override 3858 public float getIntrinsicIconScaleFactor() { 3859 return 1f; 3860 } 3861 3862 @Override 3863 public boolean supportsFlingToDelete() { 3864 return true; 3865 } 3866 3867 @Override 3868 public boolean supportsAppInfoDropTarget() { 3869 return false; 3870 } 3871 3872 @Override 3873 public boolean supportsDeleteDropTarget() { 3874 return true; 3875 } 3876 3877 @Override 3878 public void onFlingToDelete(DragObject d, PointF vec) { 3879 // Do nothing 3880 } 3881 3882 @Override 3883 public void onFlingToDeleteCompleted() { 3884 // Do nothing 3885 } 3886 3887 public boolean isDropEnabled() { 3888 return true; 3889 } 3890 3891 @Override 3892 protected void dispatchRestoreInstanceState(SparseArray<Parcelable> container) { 3893 // We don't dispatch restoreInstanceState to our children using this code path. 3894 // Some pages will be restored immediately as their items are bound immediately, and 3895 // others we will need to wait until after their items are bound. 3896 mSavedStates = container; 3897 } 3898 3899 public void restoreInstanceStateForChild(int child) { 3900 if (mSavedStates != null) { 3901 mRestoredPages.add(child); 3902 CellLayout cl = (CellLayout) getChildAt(child); 3903 if (cl != null) { 3904 cl.restoreInstanceState(mSavedStates); 3905 } 3906 } 3907 } 3908 3909 public void restoreInstanceStateForRemainingPages() { 3910 int count = getChildCount(); 3911 for (int i = 0; i < count; i++) { 3912 if (!mRestoredPages.contains(i)) { 3913 restoreInstanceStateForChild(i); 3914 } 3915 } 3916 mRestoredPages.clear(); 3917 mSavedStates = null; 3918 } 3919 3920 @Override 3921 public void scrollLeft() { 3922 if (!workspaceInModalState() && !mIsSwitchingState) { 3923 super.scrollLeft(); 3924 } 3925 Folder openFolder = getOpenFolder(); 3926 if (openFolder != null) { 3927 openFolder.completeDragExit(); 3928 } 3929 } 3930 3931 @Override 3932 public void scrollRight() { 3933 if (!workspaceInModalState() && !mIsSwitchingState) { 3934 super.scrollRight(); 3935 } 3936 Folder openFolder = getOpenFolder(); 3937 if (openFolder != null) { 3938 openFolder.completeDragExit(); 3939 } 3940 } 3941 3942 @Override 3943 public boolean onEnterScrollArea(int x, int y, int direction) { 3944 // Ignore the scroll area if we are dragging over the hot seat 3945 boolean isPortrait = !LauncherAppState.isScreenLandscape(getContext()); 3946 if (mLauncher.getHotseat() != null && isPortrait) { 3947 Rect r = new Rect(); 3948 mLauncher.getHotseat().getHitRect(r); 3949 if (r.contains(x, y)) { 3950 return false; 3951 } 3952 } 3953 3954 boolean result = false; 3955 if (!workspaceInModalState() && !mIsSwitchingState && getOpenFolder() == null) { 3956 mInScrollArea = true; 3957 3958 final int page = getNextPage() + 3959 (direction == DragController.SCROLL_LEFT ? -1 : 1); 3960 // We always want to exit the current layout to ensure parity of enter / exit 3961 setCurrentDropLayout(null); 3962 3963 if (0 <= page && page < getChildCount()) { 3964 // Ensure that we are not dragging over to the custom content screen 3965 if (getScreenIdForPageIndex(page) == CUSTOM_CONTENT_SCREEN_ID) { 3966 return false; 3967 } 3968 3969 CellLayout layout = (CellLayout) getChildAt(page); 3970 setCurrentDragOverlappingLayout(layout); 3971 3972 // Workspace is responsible for drawing the edge glow on adjacent pages, 3973 // so we need to redraw the workspace when this may have changed. 3974 invalidate(); 3975 result = true; 3976 } 3977 } 3978 return result; 3979 } 3980 3981 @Override 3982 public boolean onExitScrollArea() { 3983 boolean result = false; 3984 if (mInScrollArea) { 3985 invalidate(); 3986 CellLayout layout = getCurrentDropLayout(); 3987 setCurrentDropLayout(layout); 3988 setCurrentDragOverlappingLayout(layout); 3989 3990 result = true; 3991 mInScrollArea = false; 3992 } 3993 return result; 3994 } 3995 3996 private void onResetScrollArea() { 3997 setCurrentDragOverlappingLayout(null); 3998 mInScrollArea = false; 3999 } 4000 4001 /** 4002 * Returns a specific CellLayout 4003 */ 4004 CellLayout getParentCellLayoutForView(View v) { 4005 ArrayList<CellLayout> layouts = getWorkspaceAndHotseatCellLayouts(); 4006 for (CellLayout layout : layouts) { 4007 if (layout.getShortcutsAndWidgets().indexOfChild(v) > -1) { 4008 return layout; 4009 } 4010 } 4011 return null; 4012 } 4013 4014 /** 4015 * Returns a list of all the CellLayouts in the workspace. 4016 */ 4017 ArrayList<CellLayout> getWorkspaceAndHotseatCellLayouts() { 4018 ArrayList<CellLayout> layouts = new ArrayList<CellLayout>(); 4019 int screenCount = getChildCount(); 4020 for (int screen = 0; screen < screenCount; screen++) { 4021 layouts.add(((CellLayout) getChildAt(screen))); 4022 } 4023 if (mLauncher.getHotseat() != null) { 4024 layouts.add(mLauncher.getHotseat().getLayout()); 4025 } 4026 return layouts; 4027 } 4028 4029 /** 4030 * We should only use this to search for specific children. Do not use this method to modify 4031 * ShortcutsAndWidgetsContainer directly. Includes ShortcutAndWidgetContainers from 4032 * the hotseat and workspace pages 4033 */ 4034 ArrayList<ShortcutAndWidgetContainer> getAllShortcutAndWidgetContainers() { 4035 ArrayList<ShortcutAndWidgetContainer> childrenLayouts = 4036 new ArrayList<ShortcutAndWidgetContainer>(); 4037 int screenCount = getChildCount(); 4038 for (int screen = 0; screen < screenCount; screen++) { 4039 childrenLayouts.add(((CellLayout) getChildAt(screen)).getShortcutsAndWidgets()); 4040 } 4041 if (mLauncher.getHotseat() != null) { 4042 childrenLayouts.add(mLauncher.getHotseat().getLayout().getShortcutsAndWidgets()); 4043 } 4044 return childrenLayouts; 4045 } 4046 4047 public Folder getFolderForTag(final Object tag) { 4048 return (Folder) getFirstMatch(new ItemOperator() { 4049 4050 @Override 4051 public boolean evaluate(ItemInfo info, View v, View parent) { 4052 return (v instanceof Folder) && (((Folder) v).getInfo() == tag) 4053 && ((Folder) v).getInfo().opened; 4054 } 4055 }); 4056 } 4057 4058 public View getViewForTag(final Object tag) { 4059 return getFirstMatch(new ItemOperator() { 4060 4061 @Override 4062 public boolean evaluate(ItemInfo info, View v, View parent) { 4063 return info == tag; 4064 } 4065 }); 4066 } 4067 4068 public LauncherAppWidgetHostView getWidgetForAppWidgetId(final int appWidgetId) { 4069 return (LauncherAppWidgetHostView) getFirstMatch(new ItemOperator() { 4070 4071 @Override 4072 public boolean evaluate(ItemInfo info, View v, View parent) { 4073 return (info instanceof LauncherAppWidgetInfo) && 4074 ((LauncherAppWidgetInfo) info).appWidgetId == appWidgetId; 4075 } 4076 }); 4077 } 4078 4079 private View getFirstMatch(final ItemOperator operator) { 4080 final View[] value = new View[1]; 4081 mapOverItems(MAP_NO_RECURSE, new ItemOperator() { 4082 @Override 4083 public boolean evaluate(ItemInfo info, View v, View parent) { 4084 if (operator.evaluate(info, v, parent)) { 4085 value[0] = v; 4086 return true; 4087 } 4088 return false; 4089 } 4090 }); 4091 return value[0]; 4092 } 4093 4094 void clearDropTargets() { 4095 mapOverItems(MAP_NO_RECURSE, new ItemOperator() { 4096 @Override 4097 public boolean evaluate(ItemInfo info, View v, View parent) { 4098 if (v instanceof DropTarget) { 4099 mDragController.removeDropTarget((DropTarget) v); 4100 } 4101 // not done, process all the shortcuts 4102 return false; 4103 } 4104 }); 4105 } 4106 4107 public void disableShortcutsByPackageName(final ArrayList<String> packages, 4108 final UserHandleCompat user, final int reason) { 4109 final HashSet<String> packageNames = new HashSet<String>(); 4110 packageNames.addAll(packages); 4111 4112 mapOverItems(MAP_RECURSE, new ItemOperator() { 4113 @Override 4114 public boolean evaluate(ItemInfo info, View v, View parent) { 4115 if (info instanceof ShortcutInfo && v instanceof BubbleTextView) { 4116 ShortcutInfo shortcutInfo = (ShortcutInfo) info; 4117 ComponentName cn = shortcutInfo.getTargetComponent(); 4118 if (user.equals(shortcutInfo.user) && cn != null 4119 && packageNames.contains(cn.getPackageName())) { 4120 shortcutInfo.isDisabled |= reason; 4121 BubbleTextView shortcut = (BubbleTextView) v; 4122 shortcut.applyFromShortcutInfo(shortcutInfo, mIconCache); 4123 4124 if (parent != null) { 4125 parent.invalidate(); 4126 } 4127 } 4128 } 4129 // process all the shortcuts 4130 return false; 4131 } 4132 }); 4133 } 4134 4135 // Removes ALL items that match a given package name, this is usually called when a package 4136 // has been removed and we want to remove all components (widgets, shortcuts, apps) that 4137 // belong to that package. 4138 void removeItemsByPackageName(final ArrayList<String> packages, final UserHandleCompat user) { 4139 final HashSet<String> packageNames = new HashSet<String>(); 4140 packageNames.addAll(packages); 4141 4142 // Filter out all the ItemInfos that this is going to affect 4143 final HashSet<ItemInfo> infos = new HashSet<ItemInfo>(); 4144 final HashSet<ComponentName> cns = new HashSet<ComponentName>(); 4145 ArrayList<CellLayout> cellLayouts = getWorkspaceAndHotseatCellLayouts(); 4146 for (CellLayout layoutParent : cellLayouts) { 4147 ViewGroup layout = layoutParent.getShortcutsAndWidgets(); 4148 int childCount = layout.getChildCount(); 4149 for (int i = 0; i < childCount; ++i) { 4150 View view = layout.getChildAt(i); 4151 infos.add((ItemInfo) view.getTag()); 4152 } 4153 } 4154 LauncherModel.ItemInfoFilter filter = new LauncherModel.ItemInfoFilter() { 4155 @Override 4156 public boolean filterItem(ItemInfo parent, ItemInfo info, 4157 ComponentName cn) { 4158 if (packageNames.contains(cn.getPackageName()) 4159 && info.user.equals(user)) { 4160 cns.add(cn); 4161 return true; 4162 } 4163 return false; 4164 } 4165 }; 4166 LauncherModel.filterItemInfos(infos, filter); 4167 4168 // Remove the affected components 4169 removeItemsByComponentName(cns, user); 4170 } 4171 4172 /** 4173 * Removes items that match the item info specified. When applications are removed 4174 * as a part of an update, this is called to ensure that other widgets and application 4175 * shortcuts are not removed. 4176 */ 4177 void removeItemsByComponentName(final HashSet<ComponentName> componentNames, 4178 final UserHandleCompat user) { 4179 ArrayList<CellLayout> cellLayouts = getWorkspaceAndHotseatCellLayouts(); 4180 for (final CellLayout layoutParent: cellLayouts) { 4181 final ViewGroup layout = layoutParent.getShortcutsAndWidgets(); 4182 4183 final HashMap<ItemInfo, View> children = new HashMap<ItemInfo, View>(); 4184 for (int j = 0; j < layout.getChildCount(); j++) { 4185 final View view = layout.getChildAt(j); 4186 children.put((ItemInfo) view.getTag(), view); 4187 } 4188 4189 final ArrayList<View> childrenToRemove = new ArrayList<View>(); 4190 final HashMap<FolderInfo, ArrayList<ShortcutInfo>> folderAppsToRemove = 4191 new HashMap<FolderInfo, ArrayList<ShortcutInfo>>(); 4192 LauncherModel.ItemInfoFilter filter = new LauncherModel.ItemInfoFilter() { 4193 @Override 4194 public boolean filterItem(ItemInfo parent, ItemInfo info, 4195 ComponentName cn) { 4196 if (parent instanceof FolderInfo) { 4197 if (componentNames.contains(cn) && info.user.equals(user)) { 4198 FolderInfo folder = (FolderInfo) parent; 4199 ArrayList<ShortcutInfo> appsToRemove; 4200 if (folderAppsToRemove.containsKey(folder)) { 4201 appsToRemove = folderAppsToRemove.get(folder); 4202 } else { 4203 appsToRemove = new ArrayList<ShortcutInfo>(); 4204 folderAppsToRemove.put(folder, appsToRemove); 4205 } 4206 appsToRemove.add((ShortcutInfo) info); 4207 return true; 4208 } 4209 } else { 4210 if (componentNames.contains(cn) && info.user.equals(user)) { 4211 childrenToRemove.add(children.get(info)); 4212 return true; 4213 } 4214 } 4215 return false; 4216 } 4217 }; 4218 LauncherModel.filterItemInfos(children.keySet(), filter); 4219 4220 // Remove all the apps from their folders 4221 for (FolderInfo folder : folderAppsToRemove.keySet()) { 4222 ArrayList<ShortcutInfo> appsToRemove = folderAppsToRemove.get(folder); 4223 for (ShortcutInfo info : appsToRemove) { 4224 folder.remove(info); 4225 } 4226 } 4227 4228 // Remove all the other children 4229 for (View child : childrenToRemove) { 4230 // Note: We can not remove the view directly from CellLayoutChildren as this 4231 // does not re-mark the spaces as unoccupied. 4232 layoutParent.removeViewInLayout(child); 4233 if (child instanceof DropTarget) { 4234 mDragController.removeDropTarget((DropTarget) child); 4235 } 4236 } 4237 4238 if (childrenToRemove.size() > 0) { 4239 layout.requestLayout(); 4240 layout.invalidate(); 4241 } 4242 } 4243 4244 // Strip all the empty screens 4245 stripEmptyScreens(); 4246 } 4247 4248 interface ItemOperator { 4249 /** 4250 * Process the next itemInfo, possibly with side-effect on {@link ItemOperator#value}. 4251 * 4252 * @param info info for the shortcut 4253 * @param view view for the shortcut 4254 * @param parent containing folder, or null 4255 * @return true if done, false to continue the map 4256 */ 4257 public boolean evaluate(ItemInfo info, View view, View parent); 4258 } 4259 4260 /** 4261 * Map the operator over the shortcuts and widgets, return the first-non-null value. 4262 * 4263 * @param recurse true: iterate over folder children. false: op get the folders themselves. 4264 * @param op the operator to map over the shortcuts 4265 */ 4266 void mapOverItems(boolean recurse, ItemOperator op) { 4267 ArrayList<ShortcutAndWidgetContainer> containers = getAllShortcutAndWidgetContainers(); 4268 final int containerCount = containers.size(); 4269 for (int containerIdx = 0; containerIdx < containerCount; containerIdx++) { 4270 ShortcutAndWidgetContainer container = containers.get(containerIdx); 4271 // map over all the shortcuts on the workspace 4272 final int itemCount = container.getChildCount(); 4273 for (int itemIdx = 0; itemIdx < itemCount; itemIdx++) { 4274 View item = container.getChildAt(itemIdx); 4275 ItemInfo info = (ItemInfo) item.getTag(); 4276 if (recurse && info instanceof FolderInfo && item instanceof FolderIcon) { 4277 FolderIcon folder = (FolderIcon) item; 4278 ArrayList<View> folderChildren = folder.getFolder().getItemsInReadingOrder(); 4279 // map over all the children in the folder 4280 final int childCount = folderChildren.size(); 4281 for (int childIdx = 0; childIdx < childCount; childIdx++) { 4282 View child = folderChildren.get(childIdx); 4283 info = (ItemInfo) child.getTag(); 4284 if (op.evaluate(info, child, folder)) { 4285 return; 4286 } 4287 } 4288 } else { 4289 if (op.evaluate(info, item, null)) { 4290 return; 4291 } 4292 } 4293 } 4294 } 4295 } 4296 4297 void updateShortcuts(ArrayList<ShortcutInfo> shortcuts) { 4298 final HashSet<ShortcutInfo> updates = new HashSet<ShortcutInfo>(shortcuts); 4299 mapOverItems(MAP_RECURSE, new ItemOperator() { 4300 @Override 4301 public boolean evaluate(ItemInfo info, View v, View parent) { 4302 if (info instanceof ShortcutInfo && v instanceof BubbleTextView && 4303 updates.contains(info)) { 4304 ShortcutInfo si = (ShortcutInfo) info; 4305 BubbleTextView shortcut = (BubbleTextView) v; 4306 boolean oldPromiseState = getTextViewIcon(shortcut) 4307 instanceof PreloadIconDrawable; 4308 shortcut.applyFromShortcutInfo(si, mIconCache, 4309 si.isPromise() != oldPromiseState); 4310 4311 if (parent != null) { 4312 parent.invalidate(); 4313 } 4314 } 4315 // process all the shortcuts 4316 return false; 4317 } 4318 }); 4319 } 4320 4321 public void removeAbandonedPromise(String packageName, UserHandleCompat user) { 4322 ArrayList<String> packages = new ArrayList<String>(1); 4323 packages.add(packageName); 4324 LauncherModel.deletePackageFromDatabase(mLauncher, packageName, user); 4325 removeItemsByPackageName(packages, user); 4326 } 4327 4328 public void updateRestoreItems(final HashSet<ItemInfo> updates) { 4329 mapOverItems(MAP_RECURSE, new ItemOperator() { 4330 @Override 4331 public boolean evaluate(ItemInfo info, View v, View parent) { 4332 if (info instanceof ShortcutInfo && v instanceof BubbleTextView 4333 && updates.contains(info)) { 4334 ((BubbleTextView) v).applyState(false); 4335 } else if (v instanceof PendingAppWidgetHostView 4336 && info instanceof LauncherAppWidgetInfo 4337 && updates.contains(info)) { 4338 ((PendingAppWidgetHostView) v).applyState(); 4339 } 4340 // process all the shortcuts 4341 return false; 4342 } 4343 }); 4344 } 4345 4346 void widgetsRestored(ArrayList<LauncherAppWidgetInfo> changedInfo) { 4347 if (!changedInfo.isEmpty()) { 4348 DeferredWidgetRefresh widgetRefresh = new DeferredWidgetRefresh(changedInfo, 4349 mLauncher.getAppWidgetHost()); 4350 if (LauncherModel.getProviderInfo(getContext(), 4351 changedInfo.get(0).providerName, 4352 changedInfo.get(0).user) != null) { 4353 // Re-inflate the widgets which have changed status 4354 widgetRefresh.run(); 4355 } else { 4356 // widgetRefresh will automatically run when the packages are updated. 4357 // For now just update the progress bars 4358 for (LauncherAppWidgetInfo info : changedInfo) { 4359 if (info.hostView instanceof PendingAppWidgetHostView) { 4360 info.installProgress = 100; 4361 ((PendingAppWidgetHostView) info.hostView).applyState(); 4362 } 4363 } 4364 } 4365 } 4366 } 4367 4368 private void moveToScreen(int page, boolean animate) { 4369 if (!workspaceInModalState()) { 4370 if (animate) { 4371 snapToPage(page); 4372 } else { 4373 setCurrentPage(page); 4374 } 4375 } 4376 View child = getChildAt(page); 4377 if (child != null) { 4378 child.requestFocus(); 4379 } 4380 } 4381 4382 void moveToDefaultScreen(boolean animate) { 4383 moveToScreen(mDefaultPage, animate); 4384 } 4385 4386 void moveToCustomContentScreen(boolean animate) { 4387 if (hasCustomContent()) { 4388 int ccIndex = getPageIndexForScreenId(CUSTOM_CONTENT_SCREEN_ID); 4389 if (animate) { 4390 snapToPage(ccIndex); 4391 } else { 4392 setCurrentPage(ccIndex); 4393 } 4394 View child = getChildAt(ccIndex); 4395 if (child != null) { 4396 child.requestFocus(); 4397 } 4398 } 4399 exitWidgetResizeMode(); 4400 } 4401 4402 @Override 4403 protected PageIndicator.PageMarkerResources getPageIndicatorMarker(int pageIndex) { 4404 long screenId = getScreenIdForPageIndex(pageIndex); 4405 if (screenId == EXTRA_EMPTY_SCREEN_ID) { 4406 int count = mScreenOrder.size() - numCustomPages(); 4407 if (count > 1) { 4408 return new PageIndicator.PageMarkerResources(R.drawable.ic_pageindicator_current, 4409 R.drawable.ic_pageindicator_add); 4410 } 4411 } 4412 4413 return super.getPageIndicatorMarker(pageIndex); 4414 } 4415 4416 protected String getPageIndicatorDescription() { 4417 String settings = getResources().getString(R.string.settings_button_text); 4418 return getCurrentPageDescription() + ", " + settings; 4419 } 4420 4421 protected String getCurrentPageDescription() { 4422 if (hasCustomContent() && getNextPage() == 0) { 4423 return mCustomContentDescription; 4424 } 4425 int page = (mNextPage != INVALID_PAGE) ? mNextPage : mCurrentPage; 4426 return getPageDescription(page); 4427 } 4428 4429 private String getPageDescription(int page) { 4430 int delta = numCustomPages(); 4431 return String.format(getContext().getString(R.string.workspace_scroll_format), 4432 page + 1 - delta, getChildCount() - delta); 4433 } 4434 4435 public void getLocationInDragLayer(int[] loc) { 4436 mLauncher.getDragLayer().getLocationInDragLayer(this, loc); 4437 } 4438 4439 /** 4440 * Used as a workaround to ensure that the AppWidgetService receives the 4441 * PACKAGE_ADDED broadcast before updating widgets. 4442 */ 4443 private class DeferredWidgetRefresh implements Runnable { 4444 private final ArrayList<LauncherAppWidgetInfo> mInfos; 4445 private final LauncherAppWidgetHost mHost; 4446 private final Handler mHandler; 4447 4448 private boolean mRefreshPending; 4449 4450 public DeferredWidgetRefresh(ArrayList<LauncherAppWidgetInfo> infos, 4451 LauncherAppWidgetHost host) { 4452 mInfos = infos; 4453 mHost = host; 4454 mHandler = new Handler(); 4455 mRefreshPending = true; 4456 4457 mHost.addProviderChangeListener(this); 4458 // Force refresh after 10 seconds, if we don't get the provider changed event. 4459 // This could happen when the provider is no longer available in the app. 4460 mHandler.postDelayed(this, 10000); 4461 } 4462 4463 @Override 4464 public void run() { 4465 mHost.removeProviderChangeListener(this); 4466 mHandler.removeCallbacks(this); 4467 4468 if (!mRefreshPending) { 4469 return; 4470 } 4471 4472 mRefreshPending = false; 4473 4474 for (LauncherAppWidgetInfo info : mInfos) { 4475 if (info.hostView instanceof PendingAppWidgetHostView) { 4476 PendingAppWidgetHostView view = (PendingAppWidgetHostView) info.hostView; 4477 mLauncher.removeAppWidget(info); 4478 4479 CellLayout cl = (CellLayout) view.getParent().getParent(); 4480 // Remove the current widget 4481 cl.removeView(view); 4482 mLauncher.bindAppWidget(info); 4483 } 4484 } 4485 } 4486 } 4487} 4488