Workspace.java revision 2a53cb7a5e86920fdc9063ddf3966af5d5472c56
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.TargetApi; 25import android.app.WallpaperManager; 26import android.appwidget.AppWidgetHostView; 27import android.appwidget.AppWidgetProviderInfo; 28import android.content.ComponentName; 29import android.content.Context; 30import android.content.SharedPreferences; 31import android.content.res.Resources; 32import android.content.res.TypedArray; 33import android.graphics.Bitmap; 34import android.graphics.Canvas; 35import android.graphics.Matrix; 36import android.graphics.Paint; 37import android.graphics.Point; 38import android.graphics.PointF; 39import android.graphics.Rect; 40import android.graphics.Region.Op; 41import android.graphics.drawable.Drawable; 42import android.os.AsyncTask; 43import android.os.Build; 44import android.os.Handler; 45import android.os.IBinder; 46import android.os.Parcelable; 47import android.util.AttributeSet; 48import android.util.Log; 49import android.util.SparseArray; 50import android.view.Choreographer; 51import android.view.Display; 52import android.view.MotionEvent; 53import android.view.View; 54import android.view.ViewGroup; 55import android.view.accessibility.AccessibilityManager; 56import android.view.animation.DecelerateInterpolator; 57import android.view.animation.Interpolator; 58import android.widget.TextView; 59 60import com.android.launcher3.FolderIcon.FolderRingAnimator; 61import com.android.launcher3.Launcher.CustomContentCallbacks; 62import com.android.launcher3.Launcher.LauncherOverlay; 63import com.android.launcher3.LauncherAccessibilityDelegate.AccessibilityDragSource; 64import com.android.launcher3.LauncherSettings.Favorites; 65import com.android.launcher3.UninstallDropTarget.UninstallSource; 66import com.android.launcher3.compat.UserHandleCompat; 67import com.android.launcher3.util.LongArrayMap; 68import com.android.launcher3.util.Thunk; 69import com.android.launcher3.util.WallpaperUtils; 70import com.android.launcher3.widget.PendingAddShortcutInfo; 71import com.android.launcher3.widget.PendingAddWidgetInfo; 72 73import java.util.ArrayList; 74import java.util.HashMap; 75import java.util.HashSet; 76import java.util.concurrent.atomic.AtomicInteger; 77 78/** 79 * The workspace is a wide area with a wallpaper and a finite number of pages. 80 * Each page contains a number of icons, folders or widgets the user can 81 * interact with. A workspace is meant to be used with a fixed width only. 82 */ 83public class Workspace extends SmoothPagedView 84 implements DropTarget, DragSource, DragScroller, View.OnTouchListener, 85 DragController.DragListener, LauncherTransitionable, ViewGroup.OnHierarchyChangeListener, 86 Insettable, UninstallSource, AccessibilityDragSource { 87 private static final String TAG = "Launcher.Workspace"; 88 89 private static final int CHILDREN_OUTLINE_FADE_OUT_DELAY = 0; 90 private static final int CHILDREN_OUTLINE_FADE_OUT_DURATION = 375; 91 private static final int CHILDREN_OUTLINE_FADE_IN_DURATION = 100; 92 93 protected static final int SNAP_OFF_EMPTY_SCREEN_DURATION = 400; 94 protected static final int FADE_EMPTY_SCREEN_DURATION = 150; 95 96 private static final int ADJACENT_SCREEN_DROP_DURATION = 300; 97 private static final int FLING_THRESHOLD_VELOCITY = 500; 98 99 static final boolean MAP_NO_RECURSE = false; 100 static final boolean MAP_RECURSE = true; 101 102 // These animators are used to fade the children's outlines 103 private ObjectAnimator mChildrenOutlineFadeInAnimation; 104 private ObjectAnimator mChildrenOutlineFadeOutAnimation; 105 private float mChildrenOutlineAlpha = 0; 106 107 private static final long CUSTOM_CONTENT_GESTURE_DELAY = 200; 108 private long mTouchDownTime = -1; 109 private long mCustomContentShowTime = -1; 110 111 private LayoutTransition mLayoutTransition; 112 @Thunk final WallpaperManager mWallpaperManager; 113 @Thunk IBinder mWindowToken; 114 115 private int mOriginalDefaultPage; 116 private int mDefaultPage; 117 118 private ShortcutAndWidgetContainer mDragSourceInternal; 119 120 // The screen id used for the empty screen always present to the right. 121 final static long EXTRA_EMPTY_SCREEN_ID = -201; 122 private final static long CUSTOM_CONTENT_SCREEN_ID = -301; 123 124 @Thunk LongArrayMap<CellLayout> mWorkspaceScreens = new LongArrayMap<>(); 125 @Thunk ArrayList<Long> mScreenOrder = new ArrayList<Long>(); 126 127 @Thunk Runnable mRemoveEmptyScreenRunnable; 128 @Thunk boolean mDeferRemoveExtraEmptyScreen = false; 129 @Thunk boolean mAddNewPageOnDrag = true; 130 131 /** 132 * CellInfo for the cell that is currently being dragged 133 */ 134 private CellLayout.CellInfo mDragInfo; 135 136 /** 137 * Target drop area calculated during last acceptDrop call. 138 */ 139 @Thunk int[] mTargetCell = new int[2]; 140 private int mDragOverX = -1; 141 private int mDragOverY = -1; 142 143 static Rect mLandscapeCellLayoutMetrics = null; 144 static Rect mPortraitCellLayoutMetrics = null; 145 146 CustomContentCallbacks mCustomContentCallbacks; 147 boolean mCustomContentShowing; 148 private float mLastCustomContentScrollProgress = -1f; 149 private String mCustomContentDescription = ""; 150 151 /** 152 * The CellLayout that is currently being dragged over 153 */ 154 @Thunk CellLayout mDragTargetLayout = null; 155 /** 156 * The CellLayout that we will show as glowing 157 */ 158 private CellLayout mDragOverlappingLayout = null; 159 160 /** 161 * The CellLayout which will be dropped to 162 */ 163 private CellLayout mDropToLayout = null; 164 165 @Thunk Launcher mLauncher; 166 @Thunk IconCache mIconCache; 167 @Thunk DragController mDragController; 168 169 // These are temporary variables to prevent having to allocate a new object just to 170 // return an (x, y) value from helper functions. Do NOT use them to maintain other state. 171 private int[] mTempCell = new int[2]; 172 private int[] mTempPt = new int[2]; 173 private int[] mTempEstimate = new int[2]; 174 @Thunk float[] mDragViewVisualCenter = new float[2]; 175 private float[] mTempCellLayoutCenterCoordinates = new float[2]; 176 private Matrix mTempInverseMatrix = new Matrix(); 177 178 private SpringLoadedDragController mSpringLoadedDragController; 179 private float mSpringLoadedShrinkFactor; 180 private float mOverviewModeShrinkFactor; 181 182 // State variable that indicates whether the pages are small (ie when you're 183 // in all apps or customize mode) 184 185 enum State { NORMAL, NORMAL_HIDDEN, SPRING_LOADED, OVERVIEW, OVERVIEW_HIDDEN}; 186 private State mState = State.NORMAL; 187 private boolean mIsSwitchingState = false; 188 189 boolean mAnimatingViewIntoPlace = false; 190 boolean mIsDragOccuring = false; 191 boolean mChildrenLayersEnabled = true; 192 193 private boolean mStripScreensOnPageStopMoving = false; 194 195 /** Is the user is dragging an item near the edge of a page? */ 196 private boolean mInScrollArea = false; 197 198 private HolographicOutlineHelper mOutlineHelper; 199 @Thunk Bitmap mDragOutline = null; 200 private static final Rect sTempRect = new Rect(); 201 private final int[] mTempXY = new int[2]; 202 private int[] mTempVisiblePagesRange = new int[2]; 203 private boolean mOverscrollEffectSet; 204 public static final int DRAG_BITMAP_PADDING = 2; 205 private boolean mWorkspaceFadeInAdjacentScreens; 206 207 WallpaperOffsetInterpolator mWallpaperOffset; 208 @Thunk boolean mWallpaperIsLiveWallpaper; 209 @Thunk int mNumPagesForWallpaperParallax; 210 @Thunk float mLastSetWallpaperOffsetSteps = 0; 211 212 @Thunk Runnable mDelayedResizeRunnable; 213 private Runnable mDelayedSnapToPageRunnable; 214 private Point mDisplaySize = new Point(); 215 216 // Variables relating to the creation of user folders by hovering shortcuts over shortcuts 217 private static final int FOLDER_CREATION_TIMEOUT = 0; 218 public static final int REORDER_TIMEOUT = 350; 219 private final Alarm mFolderCreationAlarm = new Alarm(); 220 private final Alarm mReorderAlarm = new Alarm(); 221 @Thunk FolderRingAnimator mDragFolderRingAnimator = null; 222 private FolderIcon mDragOverFolderIcon = null; 223 private boolean mCreateUserFolderOnDrop = false; 224 private boolean mAddToExistingFolderOnDrop = false; 225 private DropTarget.DragEnforcer mDragEnforcer; 226 private float mMaxDistanceForFolderCreation; 227 228 private final Canvas mCanvas = new Canvas(); 229 230 // Variables relating to touch disambiguation (scrolling workspace vs. scrolling a widget) 231 private float mXDown; 232 private float mYDown; 233 final static float START_DAMPING_TOUCH_SLOP_ANGLE = (float) Math.PI / 6; 234 final static float MAX_SWIPE_ANGLE = (float) Math.PI / 3; 235 final static float TOUCH_SLOP_DAMPING_FACTOR = 4; 236 237 // Relating to the animation of items being dropped externally 238 public static final int ANIMATE_INTO_POSITION_AND_DISAPPEAR = 0; 239 public static final int ANIMATE_INTO_POSITION_AND_REMAIN = 1; 240 public static final int ANIMATE_INTO_POSITION_AND_RESIZE = 2; 241 public static final int COMPLETE_TWO_STAGE_WIDGET_DROP_ANIMATION = 3; 242 public static final int CANCEL_TWO_STAGE_WIDGET_DROP_ANIMATION = 4; 243 244 // Related to dragging, folder creation and reordering 245 private static final int DRAG_MODE_NONE = 0; 246 private static final int DRAG_MODE_CREATE_FOLDER = 1; 247 private static final int DRAG_MODE_ADD_TO_FOLDER = 2; 248 private static final int DRAG_MODE_REORDER = 3; 249 private int mDragMode = DRAG_MODE_NONE; 250 @Thunk int mLastReorderX = -1; 251 @Thunk int mLastReorderY = -1; 252 253 private SparseArray<Parcelable> mSavedStates; 254 private final ArrayList<Integer> mRestoredPages = new ArrayList<Integer>(); 255 256 // These variables are used for storing the initial and final values during workspace animations 257 private int mSavedScrollX; 258 private float mSavedRotationY; 259 private float mSavedTranslationX; 260 261 private float mCurrentScale; 262 private float mTransitionProgress; 263 264 float mOverScrollEffect = 0f; 265 266 @Thunk Runnable mDeferredAction; 267 private boolean mDeferDropAfterUninstall; 268 private boolean mUninstallSuccessful; 269 270 // State related to Launcher Overlay 271 LauncherOverlay mLauncherOverlay; 272 boolean mScrollInteractionBegan; 273 boolean mStartedSendingScrollEvents; 274 boolean mShouldSendPageSettled; 275 int mLastOverlaySroll = 0; 276 277 // Handles workspace state transitions 278 private WorkspaceStateTransitionAnimation mStateTransitionAnimation; 279 280 private final Runnable mBindPages = new Runnable() { 281 @Override 282 public void run() { 283 mLauncher.getModel().bindRemainingSynchronousPages(); 284 } 285 }; 286 287 /** 288 * Used to inflate the Workspace from XML. 289 * 290 * @param context The application's context. 291 * @param attrs The attributes set containing the Workspace's customization values. 292 */ 293 public Workspace(Context context, AttributeSet attrs) { 294 this(context, attrs, 0); 295 } 296 297 /** 298 * Used to inflate the Workspace from XML. 299 * 300 * @param context The application's context. 301 * @param attrs The attributes set containing the Workspace's customization values. 302 * @param defStyle Unused. 303 */ 304 public Workspace(Context context, AttributeSet attrs, int defStyle) { 305 super(context, attrs, defStyle); 306 mContentIsRefreshable = false; 307 308 mOutlineHelper = HolographicOutlineHelper.obtain(context); 309 310 mDragEnforcer = new DropTarget.DragEnforcer(context); 311 // With workspace, data is available straight from the get-go 312 setDataIsReady(); 313 314 mLauncher = (Launcher) context; 315 mStateTransitionAnimation = new WorkspaceStateTransitionAnimation(mLauncher, this); 316 final Resources res = getResources(); 317 mWorkspaceFadeInAdjacentScreens = LauncherAppState.getInstance().getDynamicGrid(). 318 getDeviceProfile().shouldFadeAdjacentWorkspaceScreens(); 319 mFadeInAdjacentScreens = false; 320 mWallpaperManager = WallpaperManager.getInstance(context); 321 322 LauncherAppState app = LauncherAppState.getInstance(); 323 DeviceProfile grid = app.getDynamicGrid().getDeviceProfile(); 324 TypedArray a = context.obtainStyledAttributes(attrs, 325 R.styleable.Workspace, defStyle, 0); 326 mSpringLoadedShrinkFactor = 327 res.getInteger(R.integer.config_workspaceSpringLoadShrinkPercentage) / 100.0f; 328 mOverviewModeShrinkFactor = grid.getOverviewModeScale(); 329 mOriginalDefaultPage = mDefaultPage = a.getInt(R.styleable.Workspace_defaultScreen, 1); 330 a.recycle(); 331 332 setOnHierarchyChangeListener(this); 333 setHapticFeedbackEnabled(false); 334 335 initWorkspace(); 336 337 // Disable multitouch across the workspace/all apps/customize tray 338 setMotionEventSplittingEnabled(true); 339 setImportantForAccessibility(View.IMPORTANT_FOR_ACCESSIBILITY_YES); 340 } 341 342 @Override 343 public void setInsets(Rect insets) { 344 mInsets.set(insets); 345 346 CellLayout customScreen = getScreenWithId(CUSTOM_CONTENT_SCREEN_ID); 347 if (customScreen != null) { 348 View customContent = customScreen.getShortcutsAndWidgets().getChildAt(0); 349 if (customContent instanceof Insettable) { 350 ((Insettable) customContent).setInsets(mInsets); 351 } 352 } 353 } 354 355 // estimate the size of a widget with spans hSpan, vSpan. return MAX_VALUE for each 356 // dimension if unsuccessful 357 public int[] estimateItemSize(ItemInfo itemInfo, boolean springLoaded) { 358 int[] size = new int[2]; 359 if (getChildCount() > 0) { 360 // Use the first non-custom page to estimate the child position 361 CellLayout cl = (CellLayout) getChildAt(numCustomPages()); 362 Rect r = estimateItemPosition(cl, itemInfo, 0, 0, itemInfo.spanX, itemInfo.spanY); 363 size[0] = r.width(); 364 size[1] = r.height(); 365 if (springLoaded) { 366 size[0] *= mSpringLoadedShrinkFactor; 367 size[1] *= mSpringLoadedShrinkFactor; 368 } 369 return size; 370 } else { 371 size[0] = Integer.MAX_VALUE; 372 size[1] = Integer.MAX_VALUE; 373 return size; 374 } 375 } 376 377 public Rect estimateItemPosition(CellLayout cl, ItemInfo pendingInfo, 378 int hCell, int vCell, int hSpan, int vSpan) { 379 Rect r = new Rect(); 380 cl.cellToRect(hCell, vCell, hSpan, vSpan, r); 381 return r; 382 } 383 384 public void onDragStart(final DragSource source, Object info, int dragAction) { 385 mIsDragOccuring = true; 386 updateChildrenLayersEnabled(false); 387 mLauncher.lockScreenOrientation(); 388 mLauncher.onInteractionBegin(); 389 setChildrenBackgroundAlphaMultipliers(1f); 390 // Prevent any Un/InstallShortcutReceivers from updating the db while we are dragging 391 InstallShortcutReceiver.enableInstallQueue(); 392 post(new Runnable() { 393 @Override 394 public void run() { 395 if (mIsDragOccuring && mAddNewPageOnDrag) { 396 mDeferRemoveExtraEmptyScreen = false; 397 addExtraEmptyScreenOnDrag(); 398 } 399 } 400 }); 401 } 402 403 public void setAddNewPageOnDrag(boolean addPage) { 404 mAddNewPageOnDrag = addPage; 405 } 406 407 public void deferRemoveExtraEmptyScreen() { 408 mDeferRemoveExtraEmptyScreen = true; 409 } 410 411 public void onDragEnd() { 412 if (!mDeferRemoveExtraEmptyScreen) { 413 removeExtraEmptyScreen(true, mDragSourceInternal != null); 414 } 415 416 mIsDragOccuring = false; 417 updateChildrenLayersEnabled(false); 418 mLauncher.unlockScreenOrientation(false); 419 420 // Re-enable any Un/InstallShortcutReceiver and now process any queued items 421 InstallShortcutReceiver.disableAndFlushInstallQueue(getContext()); 422 423 mDragSourceInternal = null; 424 mLauncher.onInteractionEnd(); 425 } 426 427 /** 428 * Initializes various states for this workspace. 429 */ 430 protected void initWorkspace() { 431 mCurrentPage = mDefaultPage; 432 LauncherAppState app = LauncherAppState.getInstance(); 433 DeviceProfile grid = app.getDynamicGrid().getDeviceProfile(); 434 mIconCache = app.getIconCache(); 435 setWillNotDraw(false); 436 setClipChildren(false); 437 setClipToPadding(false); 438 setChildrenDrawnWithCacheEnabled(true); 439 440 setMinScale(mOverviewModeShrinkFactor); 441 setupLayoutTransition(); 442 443 mWallpaperOffset = new WallpaperOffsetInterpolator(); 444 Display display = mLauncher.getWindowManager().getDefaultDisplay(); 445 display.getSize(mDisplaySize); 446 447 mMaxDistanceForFolderCreation = (0.55f * grid.iconSizePx); 448 mFlingThresholdVelocity = (int) (FLING_THRESHOLD_VELOCITY * mDensity); 449 450 // Set the wallpaper dimensions when Launcher starts up 451 setWallpaperDimension(); 452 } 453 454 private void setupLayoutTransition() { 455 // We want to show layout transitions when pages are deleted, to close the gap. 456 mLayoutTransition = new LayoutTransition(); 457 mLayoutTransition.enableTransitionType(LayoutTransition.DISAPPEARING); 458 mLayoutTransition.enableTransitionType(LayoutTransition.CHANGE_DISAPPEARING); 459 mLayoutTransition.disableTransitionType(LayoutTransition.APPEARING); 460 mLayoutTransition.disableTransitionType(LayoutTransition.CHANGE_APPEARING); 461 setLayoutTransition(mLayoutTransition); 462 } 463 464 void enableLayoutTransitions() { 465 setLayoutTransition(mLayoutTransition); 466 } 467 void disableLayoutTransitions() { 468 setLayoutTransition(null); 469 } 470 471 @Override 472 protected int getScrollMode() { 473 return SmoothPagedView.X_LARGE_MODE; 474 } 475 476 @Override 477 public void onChildViewAdded(View parent, View child) { 478 if (!(child instanceof CellLayout)) { 479 throw new IllegalArgumentException("A Workspace can only have CellLayout children."); 480 } 481 CellLayout cl = ((CellLayout) child); 482 cl.setOnInterceptTouchListener(this); 483 cl.setClickable(true); 484 cl.setImportantForAccessibility(IMPORTANT_FOR_ACCESSIBILITY_NO); 485 super.onChildViewAdded(parent, child); 486 } 487 488 protected boolean shouldDrawChild(View child) { 489 final CellLayout cl = (CellLayout) child; 490 return super.shouldDrawChild(child) && 491 (mIsSwitchingState || 492 cl.getShortcutsAndWidgets().getAlpha() > 0 || 493 cl.getBackgroundAlpha() > 0); 494 } 495 496 /** 497 * @return The open folder on the current screen, or null if there is none 498 */ 499 Folder getOpenFolder() { 500 DragLayer dragLayer = mLauncher.getDragLayer(); 501 int count = dragLayer.getChildCount(); 502 for (int i = 0; i < count; i++) { 503 View child = dragLayer.getChildAt(i); 504 if (child instanceof Folder) { 505 Folder folder = (Folder) child; 506 if (folder.getInfo().opened) 507 return folder; 508 } 509 } 510 return null; 511 } 512 513 boolean isTouchActive() { 514 return mTouchState != TOUCH_STATE_REST; 515 } 516 517 public void removeAllWorkspaceScreens() { 518 // Disable all layout transitions before removing all pages to ensure that we don't get the 519 // transition animations competing with us changing the scroll when we add pages or the 520 // custom content screen 521 disableLayoutTransitions(); 522 523 // Since we increment the current page when we call addCustomContentPage via bindScreens 524 // (and other places), we need to adjust the current page back when we clear the pages 525 if (hasCustomContent()) { 526 removeCustomContentPage(); 527 } 528 529 // Remove the pages and clear the screen models 530 removeAllViews(); 531 mScreenOrder.clear(); 532 mWorkspaceScreens.clear(); 533 534 // Re-enable the layout transitions 535 enableLayoutTransitions(); 536 } 537 538 public long insertNewWorkspaceScreenBeforeEmptyScreen(long screenId) { 539 // Find the index to insert this view into. If the empty screen exists, then 540 // insert it before that. 541 int insertIndex = mScreenOrder.indexOf(EXTRA_EMPTY_SCREEN_ID); 542 if (insertIndex < 0) { 543 insertIndex = mScreenOrder.size(); 544 } 545 return insertNewWorkspaceScreen(screenId, insertIndex); 546 } 547 548 public long insertNewWorkspaceScreen(long screenId) { 549 return insertNewWorkspaceScreen(screenId, getChildCount()); 550 } 551 552 public long insertNewWorkspaceScreen(long screenId, int insertIndex) { 553 if (mWorkspaceScreens.containsKey(screenId)) { 554 throw new RuntimeException("Screen id " + screenId + " already exists!"); 555 } 556 557 CellLayout newScreen = (CellLayout) 558 mLauncher.getLayoutInflater().inflate(R.layout.workspace_screen, null); 559 560 newScreen.setOnLongClickListener(mLongClickListener); 561 newScreen.setOnClickListener(mLauncher); 562 newScreen.setSoundEffectsEnabled(false); 563 mWorkspaceScreens.put(screenId, newScreen); 564 mScreenOrder.add(insertIndex, screenId); 565 addView(newScreen, insertIndex); 566 567 LauncherAccessibilityDelegate delegate = 568 LauncherAppState.getInstance().getAccessibilityDelegate(); 569 if (delegate != null && delegate.isInAccessibleDrag()) { 570 newScreen.enableAccessibleDrag(true, CellLayout.WORKSPACE_ACCESSIBILITY_DRAG); 571 } 572 return screenId; 573 } 574 575 public void createCustomContentContainer() { 576 CellLayout customScreen = (CellLayout) 577 mLauncher.getLayoutInflater().inflate(R.layout.workspace_screen, null); 578 customScreen.disableBackground(); 579 customScreen.disableDragTarget(); 580 581 mWorkspaceScreens.put(CUSTOM_CONTENT_SCREEN_ID, customScreen); 582 mScreenOrder.add(0, CUSTOM_CONTENT_SCREEN_ID); 583 584 // We want no padding on the custom content 585 customScreen.setPadding(0, 0, 0, 0); 586 587 addFullScreenPage(customScreen); 588 589 // Ensure that the current page and default page are maintained. 590 mDefaultPage = mOriginalDefaultPage + 1; 591 592 // Update the custom content hint 593 if (mRestorePage != INVALID_RESTORE_PAGE) { 594 mRestorePage = mRestorePage + 1; 595 } else { 596 setCurrentPage(getCurrentPage() + 1); 597 } 598 } 599 600 public void removeCustomContentPage() { 601 CellLayout customScreen = getScreenWithId(CUSTOM_CONTENT_SCREEN_ID); 602 if (customScreen == null) { 603 throw new RuntimeException("Expected custom content screen to exist"); 604 } 605 606 mWorkspaceScreens.remove(CUSTOM_CONTENT_SCREEN_ID); 607 mScreenOrder.remove(CUSTOM_CONTENT_SCREEN_ID); 608 removeView(customScreen); 609 610 if (mCustomContentCallbacks != null) { 611 mCustomContentCallbacks.onScrollProgressChanged(0); 612 mCustomContentCallbacks.onHide(); 613 } 614 615 mCustomContentCallbacks = null; 616 617 // Ensure that the current page and default page are maintained. 618 mDefaultPage = mOriginalDefaultPage - 1; 619 620 // Update the custom content hint 621 if (mRestorePage != INVALID_RESTORE_PAGE) { 622 mRestorePage = mRestorePage - 1; 623 } else { 624 setCurrentPage(getCurrentPage() - 1); 625 } 626 } 627 628 public void addToCustomContentPage(View customContent, CustomContentCallbacks callbacks, 629 String description) { 630 if (getPageIndexForScreenId(CUSTOM_CONTENT_SCREEN_ID) < 0) { 631 throw new RuntimeException("Expected custom content screen to exist"); 632 } 633 634 // Add the custom content to the full screen custom page 635 CellLayout customScreen = getScreenWithId(CUSTOM_CONTENT_SCREEN_ID); 636 int spanX = customScreen.getCountX(); 637 int spanY = customScreen.getCountY(); 638 CellLayout.LayoutParams lp = new CellLayout.LayoutParams(0, 0, spanX, spanY); 639 lp.canReorder = false; 640 lp.isFullscreen = true; 641 if (customContent instanceof Insettable) { 642 ((Insettable)customContent).setInsets(mInsets); 643 } 644 645 // Verify that the child is removed from any existing parent. 646 if (customContent.getParent() instanceof ViewGroup) { 647 ViewGroup parent = (ViewGroup) customContent.getParent(); 648 parent.removeView(customContent); 649 } 650 customScreen.removeAllViews(); 651 customScreen.addViewToCellLayout(customContent, 0, 0, lp, true); 652 mCustomContentDescription = description; 653 654 mCustomContentCallbacks = callbacks; 655 } 656 657 public void addExtraEmptyScreenOnDrag() { 658 boolean lastChildOnScreen = false; 659 boolean childOnFinalScreen = false; 660 661 // Cancel any pending removal of empty screen 662 mRemoveEmptyScreenRunnable = null; 663 664 if (mDragSourceInternal != null) { 665 if (mDragSourceInternal.getChildCount() == 1) { 666 lastChildOnScreen = true; 667 } 668 CellLayout cl = (CellLayout) mDragSourceInternal.getParent(); 669 if (indexOfChild(cl) == getChildCount() - 1) { 670 childOnFinalScreen = true; 671 } 672 } 673 674 // If this is the last item on the final screen 675 if (lastChildOnScreen && childOnFinalScreen) { 676 return; 677 } 678 if (!mWorkspaceScreens.containsKey(EXTRA_EMPTY_SCREEN_ID)) { 679 insertNewWorkspaceScreen(EXTRA_EMPTY_SCREEN_ID); 680 } 681 } 682 683 public boolean addExtraEmptyScreen() { 684 if (!mWorkspaceScreens.containsKey(EXTRA_EMPTY_SCREEN_ID)) { 685 insertNewWorkspaceScreen(EXTRA_EMPTY_SCREEN_ID); 686 return true; 687 } 688 return false; 689 } 690 691 private void convertFinalScreenToEmptyScreenIfNecessary() { 692 if (mLauncher.isWorkspaceLoading()) { 693 // Invalid and dangerous operation if workspace is loading 694 Launcher.addDumpLog(TAG, " - workspace loading, skip", true); 695 return; 696 } 697 698 if (hasExtraEmptyScreen() || mScreenOrder.size() == 0) return; 699 long finalScreenId = mScreenOrder.get(mScreenOrder.size() - 1); 700 701 if (finalScreenId == CUSTOM_CONTENT_SCREEN_ID) return; 702 CellLayout finalScreen = mWorkspaceScreens.get(finalScreenId); 703 704 // If the final screen is empty, convert it to the extra empty screen 705 if (finalScreen.getShortcutsAndWidgets().getChildCount() == 0 && 706 !finalScreen.isDropPending()) { 707 mWorkspaceScreens.remove(finalScreenId); 708 mScreenOrder.remove(finalScreenId); 709 710 // if this is the last non-custom content screen, convert it to the empty screen 711 mWorkspaceScreens.put(EXTRA_EMPTY_SCREEN_ID, finalScreen); 712 mScreenOrder.add(EXTRA_EMPTY_SCREEN_ID); 713 714 // Update the model if we have changed any screens 715 mLauncher.getModel().updateWorkspaceScreenOrder(mLauncher, mScreenOrder); 716 } 717 } 718 719 public void removeExtraEmptyScreen(final boolean animate, boolean stripEmptyScreens) { 720 removeExtraEmptyScreenDelayed(animate, null, 0, stripEmptyScreens); 721 } 722 723 public void removeExtraEmptyScreenDelayed(final boolean animate, final Runnable onComplete, 724 final int delay, final boolean stripEmptyScreens) { 725 if (mLauncher.isWorkspaceLoading()) { 726 // Don't strip empty screens if the workspace is still loading 727 Launcher.addDumpLog(TAG, " - workspace loading, skip", true); 728 return; 729 } 730 731 if (delay > 0) { 732 postDelayed(new Runnable() { 733 @Override 734 public void run() { 735 removeExtraEmptyScreenDelayed(animate, onComplete, 0, stripEmptyScreens); 736 } 737 }, delay); 738 return; 739 } 740 741 convertFinalScreenToEmptyScreenIfNecessary(); 742 if (hasExtraEmptyScreen()) { 743 int emptyIndex = mScreenOrder.indexOf(EXTRA_EMPTY_SCREEN_ID); 744 if (getNextPage() == emptyIndex) { 745 snapToPage(getNextPage() - 1, SNAP_OFF_EMPTY_SCREEN_DURATION); 746 fadeAndRemoveEmptyScreen(SNAP_OFF_EMPTY_SCREEN_DURATION, FADE_EMPTY_SCREEN_DURATION, 747 onComplete, stripEmptyScreens); 748 } else { 749 fadeAndRemoveEmptyScreen(0, FADE_EMPTY_SCREEN_DURATION, 750 onComplete, stripEmptyScreens); 751 } 752 return; 753 } else if (stripEmptyScreens) { 754 // If we're not going to strip the empty screens after removing 755 // the extra empty screen, do it right away. 756 stripEmptyScreens(); 757 } 758 759 if (onComplete != null) { 760 onComplete.run(); 761 } 762 } 763 764 private void fadeAndRemoveEmptyScreen(int delay, int duration, final Runnable onComplete, 765 final boolean stripEmptyScreens) { 766 // XXX: Do we need to update LM workspace screens below? 767 PropertyValuesHolder alpha = PropertyValuesHolder.ofFloat("alpha", 0f); 768 PropertyValuesHolder bgAlpha = PropertyValuesHolder.ofFloat("backgroundAlpha", 0f); 769 770 final CellLayout cl = mWorkspaceScreens.get(EXTRA_EMPTY_SCREEN_ID); 771 772 mRemoveEmptyScreenRunnable = new Runnable() { 773 @Override 774 public void run() { 775 if (hasExtraEmptyScreen()) { 776 mWorkspaceScreens.remove(EXTRA_EMPTY_SCREEN_ID); 777 mScreenOrder.remove(EXTRA_EMPTY_SCREEN_ID); 778 removeView(cl); 779 if (stripEmptyScreens) { 780 stripEmptyScreens(); 781 } 782 } 783 } 784 }; 785 786 ObjectAnimator oa = ObjectAnimator.ofPropertyValuesHolder(cl, alpha, bgAlpha); 787 oa.setDuration(duration); 788 oa.setStartDelay(delay); 789 oa.addListener(new AnimatorListenerAdapter() { 790 @Override 791 public void onAnimationEnd(Animator animation) { 792 if (mRemoveEmptyScreenRunnable != null) { 793 mRemoveEmptyScreenRunnable.run(); 794 } 795 if (onComplete != null) { 796 onComplete.run(); 797 } 798 } 799 }); 800 oa.start(); 801 } 802 803 public boolean hasExtraEmptyScreen() { 804 int nScreens = getChildCount(); 805 nScreens = nScreens - numCustomPages(); 806 return mWorkspaceScreens.containsKey(EXTRA_EMPTY_SCREEN_ID) && nScreens > 1; 807 } 808 809 public long commitExtraEmptyScreen() { 810 if (mLauncher.isWorkspaceLoading()) { 811 // Invalid and dangerous operation if workspace is loading 812 Launcher.addDumpLog(TAG, " - workspace loading, skip", true); 813 return -1; 814 } 815 816 int index = getPageIndexForScreenId(EXTRA_EMPTY_SCREEN_ID); 817 CellLayout cl = mWorkspaceScreens.get(EXTRA_EMPTY_SCREEN_ID); 818 mWorkspaceScreens.remove(EXTRA_EMPTY_SCREEN_ID); 819 mScreenOrder.remove(EXTRA_EMPTY_SCREEN_ID); 820 821 long newId = LauncherAppState.getLauncherProvider().generateNewScreenId(); 822 mWorkspaceScreens.put(newId, cl); 823 mScreenOrder.add(newId); 824 825 // Update the page indicator marker 826 if (getPageIndicator() != null) { 827 getPageIndicator().updateMarker(index, getPageIndicatorMarker(index)); 828 } 829 830 // Update the model for the new screen 831 mLauncher.getModel().updateWorkspaceScreenOrder(mLauncher, mScreenOrder); 832 833 return newId; 834 } 835 836 public CellLayout getScreenWithId(long screenId) { 837 CellLayout layout = mWorkspaceScreens.get(screenId); 838 return layout; 839 } 840 841 public long getIdForScreen(CellLayout layout) { 842 int index = mWorkspaceScreens.indexOfValue(layout); 843 if (index != -1) { 844 return mWorkspaceScreens.keyAt(index); 845 } 846 return -1; 847 } 848 849 public int getPageIndexForScreenId(long screenId) { 850 return indexOfChild(mWorkspaceScreens.get(screenId)); 851 } 852 853 public long getScreenIdForPageIndex(int index) { 854 if (0 <= index && index < mScreenOrder.size()) { 855 return mScreenOrder.get(index); 856 } 857 return -1; 858 } 859 860 ArrayList<Long> getScreenOrder() { 861 return mScreenOrder; 862 } 863 864 public void stripEmptyScreens() { 865 if (mLauncher.isWorkspaceLoading()) { 866 // Don't strip empty screens if the workspace is still loading. 867 // This is dangerous and can result in data loss. 868 Launcher.addDumpLog(TAG, " - workspace loading, skip", true); 869 return; 870 } 871 872 if (isPageMoving()) { 873 mStripScreensOnPageStopMoving = true; 874 return; 875 } 876 877 int currentPage = getNextPage(); 878 ArrayList<Long> removeScreens = new ArrayList<Long>(); 879 int total = mWorkspaceScreens.size(); 880 for (int i = 0; i < total; i++) { 881 long id = mWorkspaceScreens.keyAt(i); 882 CellLayout cl = mWorkspaceScreens.valueAt(i); 883 if (id >= 0 && cl.getShortcutsAndWidgets().getChildCount() == 0) { 884 removeScreens.add(id); 885 } 886 } 887 888 // We enforce at least one page to add new items to. In the case that we remove the last 889 // such screen, we convert the last screen to the empty screen 890 int minScreens = 1 + numCustomPages(); 891 892 int pageShift = 0; 893 for (Long id: removeScreens) { 894 CellLayout cl = mWorkspaceScreens.get(id); 895 mWorkspaceScreens.remove(id); 896 mScreenOrder.remove(id); 897 898 if (getChildCount() > minScreens) { 899 if (indexOfChild(cl) < currentPage) { 900 pageShift++; 901 } 902 removeView(cl); 903 } else { 904 // if this is the last non-custom content screen, convert it to the empty screen 905 mRemoveEmptyScreenRunnable = null; 906 mWorkspaceScreens.put(EXTRA_EMPTY_SCREEN_ID, cl); 907 mScreenOrder.add(EXTRA_EMPTY_SCREEN_ID); 908 } 909 } 910 911 if (!removeScreens.isEmpty()) { 912 // Update the model if we have changed any screens 913 mLauncher.getModel().updateWorkspaceScreenOrder(mLauncher, mScreenOrder); 914 } 915 916 if (pageShift >= 0) { 917 setCurrentPage(currentPage - pageShift); 918 } 919 } 920 921 // See implementation for parameter definition. 922 void addInScreen(View child, long container, long screenId, 923 int x, int y, int spanX, int spanY) { 924 addInScreen(child, container, screenId, x, y, spanX, spanY, false, false); 925 } 926 927 // At bind time, we use the rank (screenId) to compute x and y for hotseat items. 928 // See implementation for parameter definition. 929 void addInScreenFromBind(View child, long container, long screenId, int x, int y, 930 int spanX, int spanY) { 931 addInScreen(child, container, screenId, x, y, spanX, spanY, false, true); 932 } 933 934 // See implementation for parameter definition. 935 void addInScreen(View child, long container, long screenId, int x, int y, int spanX, int spanY, 936 boolean insert) { 937 addInScreen(child, container, screenId, x, y, spanX, spanY, insert, false); 938 } 939 940 /** 941 * Adds the specified child in the specified screen. The position and dimension of 942 * the child are defined by x, y, spanX and spanY. 943 * 944 * @param child The child to add in one of the workspace's screens. 945 * @param screenId The screen in which to add the child. 946 * @param x The X position of the child in the screen's grid. 947 * @param y The Y position of the child in the screen's grid. 948 * @param spanX The number of cells spanned horizontally by the child. 949 * @param spanY The number of cells spanned vertically by the child. 950 * @param insert When true, the child is inserted at the beginning of the children list. 951 * @param computeXYFromRank When true, we use the rank (stored in screenId) to compute 952 * the x and y position in which to place hotseat items. Otherwise 953 * we use the x and y position to compute the rank. 954 */ 955 void addInScreen(View child, long container, long screenId, int x, int y, int spanX, int spanY, 956 boolean insert, boolean computeXYFromRank) { 957 if (container == LauncherSettings.Favorites.CONTAINER_DESKTOP) { 958 if (getScreenWithId(screenId) == null) { 959 Log.e(TAG, "Skipping child, screenId " + screenId + " not found"); 960 // DEBUGGING - Print out the stack trace to see where we are adding from 961 new Throwable().printStackTrace(); 962 return; 963 } 964 } 965 if (screenId == EXTRA_EMPTY_SCREEN_ID) { 966 // This should never happen 967 throw new RuntimeException("Screen id should not be EXTRA_EMPTY_SCREEN_ID"); 968 } 969 970 final CellLayout layout; 971 if (container == LauncherSettings.Favorites.CONTAINER_HOTSEAT) { 972 layout = mLauncher.getHotseat().getLayout(); 973 child.setOnKeyListener(new HotseatIconKeyEventListener()); 974 975 // Hide folder title in the hotseat 976 if (child instanceof FolderIcon) { 977 ((FolderIcon) child).setTextVisible(false); 978 } 979 980 if (computeXYFromRank) { 981 x = mLauncher.getHotseat().getCellXFromOrder((int) screenId); 982 y = mLauncher.getHotseat().getCellYFromOrder((int) screenId); 983 } else { 984 screenId = mLauncher.getHotseat().getOrderInHotseat(x, y); 985 } 986 } else { 987 // Show folder title if not in the hotseat 988 if (child instanceof FolderIcon) { 989 ((FolderIcon) child).setTextVisible(true); 990 } 991 layout = getScreenWithId(screenId); 992 child.setOnKeyListener(new IconKeyEventListener()); 993 } 994 995 ViewGroup.LayoutParams genericLp = child.getLayoutParams(); 996 CellLayout.LayoutParams lp; 997 if (genericLp == null || !(genericLp instanceof CellLayout.LayoutParams)) { 998 lp = new CellLayout.LayoutParams(x, y, spanX, spanY); 999 } else { 1000 lp = (CellLayout.LayoutParams) genericLp; 1001 lp.cellX = x; 1002 lp.cellY = y; 1003 lp.cellHSpan = spanX; 1004 lp.cellVSpan = spanY; 1005 } 1006 1007 if (spanX < 0 && spanY < 0) { 1008 lp.isLockedToGrid = false; 1009 } 1010 1011 // Get the canonical child id to uniquely represent this view in this screen 1012 ItemInfo info = (ItemInfo) child.getTag(); 1013 int childId = mLauncher.getViewIdForItem(info); 1014 1015 boolean markCellsAsOccupied = !(child instanceof Folder); 1016 if (!layout.addViewToCellLayout(child, insert ? 0 : -1, childId, lp, markCellsAsOccupied)) { 1017 // TODO: This branch occurs when the workspace is adding views 1018 // outside of the defined grid 1019 // maybe we should be deleting these items from the LauncherModel? 1020 Launcher.addDumpLog(TAG, "Failed to add to item at (" + lp.cellX + "," + lp.cellY + ") to CellLayout", true); 1021 } 1022 1023 if (!(child instanceof Folder)) { 1024 child.setHapticFeedbackEnabled(false); 1025 child.setOnLongClickListener(mLongClickListener); 1026 } 1027 if (child instanceof DropTarget) { 1028 mDragController.addDropTarget((DropTarget) child); 1029 } 1030 } 1031 1032 /** 1033 * Called directly from a CellLayout (not by the framework), after we've been added as a 1034 * listener via setOnInterceptTouchEventListener(). This allows us to tell the CellLayout 1035 * that it should intercept touch events, which is not something that is normally supported. 1036 */ 1037 @Override 1038 public boolean onTouch(View v, MotionEvent event) { 1039 return (workspaceInModalState() || !isFinishedSwitchingState()) 1040 || (!workspaceInModalState() && indexOfChild(v) != mCurrentPage); 1041 } 1042 1043 public boolean isSwitchingState() { 1044 return mIsSwitchingState; 1045 } 1046 1047 /** This differs from isSwitchingState in that we take into account how far the transition 1048 * has completed. */ 1049 public boolean isFinishedSwitchingState() { 1050 return !mIsSwitchingState || (mTransitionProgress > 0.5f); 1051 } 1052 1053 protected void onWindowVisibilityChanged (int visibility) { 1054 mLauncher.onWindowVisibilityChanged(visibility); 1055 } 1056 1057 @Override 1058 public boolean dispatchUnhandledMove(View focused, int direction) { 1059 if (workspaceInModalState() || !isFinishedSwitchingState()) { 1060 // when the home screens are shrunken, shouldn't allow side-scrolling 1061 return false; 1062 } 1063 return super.dispatchUnhandledMove(focused, direction); 1064 } 1065 1066 @Override 1067 public boolean onInterceptTouchEvent(MotionEvent ev) { 1068 switch (ev.getAction() & MotionEvent.ACTION_MASK) { 1069 case MotionEvent.ACTION_DOWN: 1070 mXDown = ev.getX(); 1071 mYDown = ev.getY(); 1072 mTouchDownTime = System.currentTimeMillis(); 1073 break; 1074 case MotionEvent.ACTION_POINTER_UP: 1075 case MotionEvent.ACTION_UP: 1076 if (mTouchState == TOUCH_STATE_REST) { 1077 final CellLayout currentPage = (CellLayout) getChildAt(mCurrentPage); 1078 if (currentPage != null && !currentPage.lastDownOnOccupiedCell()) { 1079 onWallpaperTap(ev); 1080 } 1081 } 1082 } 1083 return super.onInterceptTouchEvent(ev); 1084 } 1085 1086 @Override 1087 public boolean onGenericMotionEvent(MotionEvent event) { 1088 // Ignore pointer scroll events if the custom content doesn't allow scrolling. 1089 if ((getScreenIdForPageIndex(getCurrentPage()) == CUSTOM_CONTENT_SCREEN_ID) 1090 && (mCustomContentCallbacks != null) 1091 && !mCustomContentCallbacks.isScrollingAllowed()) { 1092 return false; 1093 } 1094 return super.onGenericMotionEvent(event); 1095 } 1096 1097 protected void reinflateWidgetsIfNecessary() { 1098 final int clCount = getChildCount(); 1099 for (int i = 0; i < clCount; i++) { 1100 CellLayout cl = (CellLayout) getChildAt(i); 1101 ShortcutAndWidgetContainer swc = cl.getShortcutsAndWidgets(); 1102 final int itemCount = swc.getChildCount(); 1103 for (int j = 0; j < itemCount; j++) { 1104 View v = swc.getChildAt(j); 1105 1106 if (v != null && v.getTag() instanceof LauncherAppWidgetInfo) { 1107 LauncherAppWidgetInfo info = (LauncherAppWidgetInfo) v.getTag(); 1108 LauncherAppWidgetHostView lahv = (LauncherAppWidgetHostView) info.hostView; 1109 if (lahv != null && lahv.isReinflateRequired()) { 1110 mLauncher.removeAppWidget(info); 1111 // Remove the current widget which is inflated with the wrong orientation 1112 cl.removeView(lahv); 1113 mLauncher.bindAppWidget(info); 1114 } 1115 } 1116 } 1117 } 1118 } 1119 1120 @Override 1121 protected void determineScrollingStart(MotionEvent ev) { 1122 if (!isFinishedSwitchingState()) return; 1123 1124 float deltaX = ev.getX() - mXDown; 1125 float absDeltaX = Math.abs(deltaX); 1126 float absDeltaY = Math.abs(ev.getY() - mYDown); 1127 1128 if (Float.compare(absDeltaX, 0f) == 0) return; 1129 1130 float slope = absDeltaY / absDeltaX; 1131 float theta = (float) Math.atan(slope); 1132 1133 if (absDeltaX > mTouchSlop || absDeltaY > mTouchSlop) { 1134 cancelCurrentPageLongPress(); 1135 } 1136 1137 boolean passRightSwipesToCustomContent = 1138 (mTouchDownTime - mCustomContentShowTime) > CUSTOM_CONTENT_GESTURE_DELAY; 1139 1140 boolean swipeInIgnoreDirection = isLayoutRtl() ? deltaX < 0 : deltaX > 0; 1141 boolean onCustomContentScreen = 1142 getScreenIdForPageIndex(getCurrentPage()) == CUSTOM_CONTENT_SCREEN_ID; 1143 if (swipeInIgnoreDirection && onCustomContentScreen && passRightSwipesToCustomContent) { 1144 // Pass swipes to the right to the custom content page. 1145 return; 1146 } 1147 1148 if (onCustomContentScreen && (mCustomContentCallbacks != null) 1149 && !mCustomContentCallbacks.isScrollingAllowed()) { 1150 // Don't allow workspace scrolling if the current custom content screen doesn't allow 1151 // scrolling. 1152 return; 1153 } 1154 1155 if (theta > MAX_SWIPE_ANGLE) { 1156 // Above MAX_SWIPE_ANGLE, we don't want to ever start scrolling the workspace 1157 return; 1158 } else if (theta > START_DAMPING_TOUCH_SLOP_ANGLE) { 1159 // Above START_DAMPING_TOUCH_SLOP_ANGLE and below MAX_SWIPE_ANGLE, we want to 1160 // increase the touch slop to make it harder to begin scrolling the workspace. This 1161 // results in vertically scrolling widgets to more easily. The higher the angle, the 1162 // more we increase touch slop. 1163 theta -= START_DAMPING_TOUCH_SLOP_ANGLE; 1164 float extraRatio = (float) 1165 Math.sqrt((theta / (MAX_SWIPE_ANGLE - START_DAMPING_TOUCH_SLOP_ANGLE))); 1166 super.determineScrollingStart(ev, 1 + TOUCH_SLOP_DAMPING_FACTOR * extraRatio); 1167 } else { 1168 // Below START_DAMPING_TOUCH_SLOP_ANGLE, we don't do anything special 1169 super.determineScrollingStart(ev); 1170 } 1171 } 1172 1173 protected void onPageBeginMoving() { 1174 super.onPageBeginMoving(); 1175 1176 if (isHardwareAccelerated()) { 1177 updateChildrenLayersEnabled(false); 1178 } else { 1179 if (mNextPage != INVALID_PAGE) { 1180 // we're snapping to a particular screen 1181 enableChildrenCache(mCurrentPage, mNextPage); 1182 } else { 1183 // this is when user is actively dragging a particular screen, they might 1184 // swipe it either left or right (but we won't advance by more than one screen) 1185 enableChildrenCache(mCurrentPage - 1, mCurrentPage + 1); 1186 } 1187 } 1188 } 1189 1190 protected void onPageEndMoving() { 1191 super.onPageEndMoving(); 1192 1193 if (isHardwareAccelerated()) { 1194 updateChildrenLayersEnabled(false); 1195 } else { 1196 clearChildrenCache(); 1197 } 1198 1199 if (mDragController.isDragging()) { 1200 if (workspaceInModalState()) { 1201 // If we are in springloaded mode, then force an event to check if the current touch 1202 // is under a new page (to scroll to) 1203 mDragController.forceTouchMove(); 1204 } 1205 } 1206 1207 if (mDelayedResizeRunnable != null) { 1208 mDelayedResizeRunnable.run(); 1209 mDelayedResizeRunnable = null; 1210 } 1211 1212 if (mDelayedSnapToPageRunnable != null) { 1213 mDelayedSnapToPageRunnable.run(); 1214 mDelayedSnapToPageRunnable = null; 1215 } 1216 if (mStripScreensOnPageStopMoving) { 1217 stripEmptyScreens(); 1218 mStripScreensOnPageStopMoving = false; 1219 } 1220 1221 if (mShouldSendPageSettled) { 1222 mLauncherOverlay.onScrollSettled(); 1223 mShouldSendPageSettled = false; 1224 } 1225 } 1226 1227 protected void onScrollInteractionBegin() { 1228 super.onScrollInteractionEnd(); 1229 mScrollInteractionBegan = true; 1230 } 1231 1232 protected void onScrollInteractionEnd() { 1233 super.onScrollInteractionEnd(); 1234 mScrollInteractionBegan = false; 1235 if (mStartedSendingScrollEvents) { 1236 mStartedSendingScrollEvents = false; 1237 mLauncherOverlay.onScrollInteractionEnd(); 1238 } 1239 } 1240 1241 public void setLauncherOverlay(LauncherOverlay overlay) { 1242 mLauncherOverlay = overlay; 1243 } 1244 1245 @Override 1246 protected void overScroll(float amount) { 1247 boolean isRtl = isLayoutRtl(); 1248 boolean shouldOverScroll = (amount <= 0 && (!hasCustomContent() || isRtl)) || 1249 (amount >= 0 && (!hasCustomContent() || !isRtl)); 1250 1251 boolean shouldScrollOverlay = mLauncherOverlay != null && 1252 ((amount <= 0 && !isRtl) || (amount >= 0 && isRtl)); 1253 1254 boolean shouldZeroOverlay = mLauncherOverlay != null && mLastOverlaySroll != 0 && 1255 ((amount >= 0 && !isRtl) || (amount <= 0 && isRtl)); 1256 1257 if (shouldScrollOverlay) { 1258 if (!mStartedSendingScrollEvents && mScrollInteractionBegan) { 1259 mStartedSendingScrollEvents = true; 1260 mLauncherOverlay.onScrollInteractionBegin(); 1261 mShouldSendPageSettled = true; 1262 } 1263 int screenSize = getViewportWidth(); 1264 float f = (amount / screenSize); 1265 1266 int progress = (int) Math.abs((f * 100)); 1267 1268 mLastOverlaySroll = progress; 1269 mLauncherOverlay.onScrollChange(progress, isRtl); 1270 } else if (shouldOverScroll) { 1271 dampedOverScroll(amount); 1272 mOverScrollEffect = acceleratedOverFactor(amount); 1273 } else { 1274 mOverScrollEffect = 0; 1275 } 1276 1277 if (shouldZeroOverlay) { 1278 mLauncherOverlay.onScrollChange(0, isRtl); 1279 } 1280 } 1281 1282 @Override 1283 protected void notifyPageSwitchListener() { 1284 super.notifyPageSwitchListener(); 1285 1286 if (hasCustomContent() && getNextPage() == 0 && !mCustomContentShowing) { 1287 mCustomContentShowing = true; 1288 if (mCustomContentCallbacks != null) { 1289 mCustomContentCallbacks.onShow(false); 1290 mCustomContentShowTime = System.currentTimeMillis(); 1291 } 1292 } else if (hasCustomContent() && getNextPage() != 0 && mCustomContentShowing) { 1293 mCustomContentShowing = false; 1294 if (mCustomContentCallbacks != null) { 1295 mCustomContentCallbacks.onHide(); 1296 } 1297 } 1298 } 1299 1300 protected CustomContentCallbacks getCustomContentCallbacks() { 1301 return mCustomContentCallbacks; 1302 } 1303 1304 protected void setWallpaperDimension() { 1305 new AsyncTask<Void, Void, Void>() { 1306 public Void doInBackground(Void ... args) { 1307 String spKey = LauncherFiles.WALLPAPER_CROP_PREFERENCES_KEY; 1308 SharedPreferences sp = 1309 mLauncher.getSharedPreferences(spKey, Context.MODE_MULTI_PROCESS); 1310 WallpaperUtils.suggestWallpaperDimension(mLauncher.getResources(), 1311 sp, mLauncher.getWindowManager(), mWallpaperManager, 1312 mLauncher.overrideWallpaperDimensions()); 1313 return null; 1314 } 1315 }.executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR, (Void) null); 1316 } 1317 1318 protected void snapToPage(int whichPage, Runnable r) { 1319 snapToPage(whichPage, SLOW_PAGE_SNAP_ANIMATION_DURATION, r); 1320 } 1321 1322 protected void snapToPage(int whichPage, int duration, Runnable r) { 1323 if (mDelayedSnapToPageRunnable != null) { 1324 mDelayedSnapToPageRunnable.run(); 1325 } 1326 mDelayedSnapToPageRunnable = r; 1327 snapToPage(whichPage, duration); 1328 } 1329 1330 public void snapToScreenId(long screenId) { 1331 snapToScreenId(screenId, null); 1332 } 1333 1334 protected void snapToScreenId(long screenId, Runnable r) { 1335 snapToPage(getPageIndexForScreenId(screenId), r); 1336 } 1337 1338 class WallpaperOffsetInterpolator implements Choreographer.FrameCallback { 1339 float mFinalOffset = 0.0f; 1340 float mCurrentOffset = 0.5f; // to force an initial update 1341 boolean mWaitingForUpdate; 1342 Choreographer mChoreographer; 1343 Interpolator mInterpolator; 1344 boolean mAnimating; 1345 long mAnimationStartTime; 1346 float mAnimationStartOffset; 1347 private final int ANIMATION_DURATION = 250; 1348 // Don't use all the wallpaper for parallax until you have at least this many pages 1349 private final int MIN_PARALLAX_PAGE_SPAN = 3; 1350 int mNumScreens; 1351 1352 public WallpaperOffsetInterpolator() { 1353 mChoreographer = Choreographer.getInstance(); 1354 mInterpolator = new DecelerateInterpolator(1.5f); 1355 } 1356 1357 @Override 1358 public void doFrame(long frameTimeNanos) { 1359 updateOffset(false); 1360 } 1361 1362 private void updateOffset(boolean force) { 1363 if (mWaitingForUpdate || force) { 1364 mWaitingForUpdate = false; 1365 if (computeScrollOffset() && mWindowToken != null) { 1366 try { 1367 mWallpaperManager.setWallpaperOffsets(mWindowToken, 1368 mWallpaperOffset.getCurrX(), 0.5f); 1369 setWallpaperOffsetSteps(); 1370 } catch (IllegalArgumentException e) { 1371 Log.e(TAG, "Error updating wallpaper offset: " + e); 1372 } 1373 } 1374 } 1375 } 1376 1377 public boolean computeScrollOffset() { 1378 final float oldOffset = mCurrentOffset; 1379 if (mAnimating) { 1380 long durationSinceAnimation = System.currentTimeMillis() - mAnimationStartTime; 1381 float t0 = durationSinceAnimation / (float) ANIMATION_DURATION; 1382 float t1 = mInterpolator.getInterpolation(t0); 1383 mCurrentOffset = mAnimationStartOffset + 1384 (mFinalOffset - mAnimationStartOffset) * t1; 1385 mAnimating = durationSinceAnimation < ANIMATION_DURATION; 1386 } else { 1387 mCurrentOffset = mFinalOffset; 1388 } 1389 1390 if (Math.abs(mCurrentOffset - mFinalOffset) > 0.0000001f) { 1391 scheduleUpdate(); 1392 } 1393 if (Math.abs(oldOffset - mCurrentOffset) > 0.0000001f) { 1394 return true; 1395 } 1396 return false; 1397 } 1398 1399 private float wallpaperOffsetForCurrentScroll() { 1400 // TODO: do different behavior if it's a live wallpaper? 1401 // Don't use up all the wallpaper parallax until you have at least 1402 // MIN_PARALLAX_PAGE_SPAN pages 1403 int numScrollingPages = getNumScreensExcludingEmptyAndCustom(); 1404 int parallaxPageSpan; 1405 if (mWallpaperIsLiveWallpaper) { 1406 parallaxPageSpan = numScrollingPages - 1; 1407 } else { 1408 parallaxPageSpan = Math.max(MIN_PARALLAX_PAGE_SPAN, numScrollingPages - 1); 1409 } 1410 mNumPagesForWallpaperParallax = parallaxPageSpan; 1411 1412 if (getChildCount() <= 1) { 1413 if (isLayoutRtl()) { 1414 return 1 - 1.0f/mNumPagesForWallpaperParallax; 1415 } 1416 return 0; 1417 } 1418 1419 // Exclude the leftmost page 1420 int emptyExtraPages = numEmptyScreensToIgnore(); 1421 int firstIndex = numCustomPages(); 1422 // Exclude the last extra empty screen (if we have > MIN_PARALLAX_PAGE_SPAN pages) 1423 int lastIndex = getChildCount() - 1 - emptyExtraPages; 1424 if (isLayoutRtl()) { 1425 int temp = firstIndex; 1426 firstIndex = lastIndex; 1427 lastIndex = temp; 1428 } 1429 1430 int firstPageScrollX = getScrollForPage(firstIndex); 1431 int scrollRange = getScrollForPage(lastIndex) - firstPageScrollX; 1432 if (scrollRange == 0) { 1433 return 0; 1434 } else { 1435 // Sometimes the left parameter of the pages is animated during a layout transition; 1436 // this parameter offsets it to keep the wallpaper from animating as well 1437 int adjustedScroll = 1438 getScrollX() - firstPageScrollX - getLayoutTransitionOffsetForPage(0); 1439 float offset = Math.min(1, adjustedScroll / (float) scrollRange); 1440 offset = Math.max(0, offset); 1441 1442 // On RTL devices, push the wallpaper offset to the right if we don't have enough 1443 // pages (ie if numScrollingPages < MIN_PARALLAX_PAGE_SPAN) 1444 if (!mWallpaperIsLiveWallpaper && numScrollingPages < MIN_PARALLAX_PAGE_SPAN 1445 && isLayoutRtl()) { 1446 return offset * (parallaxPageSpan - numScrollingPages + 1) / parallaxPageSpan; 1447 } 1448 return offset * (numScrollingPages - 1) / parallaxPageSpan; 1449 } 1450 } 1451 1452 private int numEmptyScreensToIgnore() { 1453 int numScrollingPages = getChildCount() - numCustomPages(); 1454 if (numScrollingPages >= MIN_PARALLAX_PAGE_SPAN && hasExtraEmptyScreen()) { 1455 return 1; 1456 } else { 1457 return 0; 1458 } 1459 } 1460 1461 private int getNumScreensExcludingEmptyAndCustom() { 1462 int numScrollingPages = getChildCount() - numEmptyScreensToIgnore() - numCustomPages(); 1463 return numScrollingPages; 1464 } 1465 1466 public void syncWithScroll() { 1467 float offset = wallpaperOffsetForCurrentScroll(); 1468 mWallpaperOffset.setFinalX(offset); 1469 updateOffset(true); 1470 } 1471 1472 public float getCurrX() { 1473 return mCurrentOffset; 1474 } 1475 1476 public float getFinalX() { 1477 return mFinalOffset; 1478 } 1479 1480 private void animateToFinal() { 1481 mAnimating = true; 1482 mAnimationStartOffset = mCurrentOffset; 1483 mAnimationStartTime = System.currentTimeMillis(); 1484 } 1485 1486 private void setWallpaperOffsetSteps() { 1487 // Set wallpaper offset steps (1 / (number of screens - 1)) 1488 float xOffset = 1.0f / mNumPagesForWallpaperParallax; 1489 if (xOffset != mLastSetWallpaperOffsetSteps) { 1490 mWallpaperManager.setWallpaperOffsetSteps(xOffset, 1.0f); 1491 mLastSetWallpaperOffsetSteps = xOffset; 1492 } 1493 } 1494 1495 public void setFinalX(float x) { 1496 scheduleUpdate(); 1497 mFinalOffset = Math.max(0f, Math.min(x, 1.0f)); 1498 if (getNumScreensExcludingEmptyAndCustom() != mNumScreens) { 1499 if (mNumScreens > 0) { 1500 // Don't animate if we're going from 0 screens 1501 animateToFinal(); 1502 } 1503 mNumScreens = getNumScreensExcludingEmptyAndCustom(); 1504 } 1505 } 1506 1507 private void scheduleUpdate() { 1508 if (!mWaitingForUpdate) { 1509 mChoreographer.postFrameCallback(this); 1510 mWaitingForUpdate = true; 1511 } 1512 } 1513 1514 public void jumpToFinal() { 1515 mCurrentOffset = mFinalOffset; 1516 } 1517 } 1518 1519 @Override 1520 public void computeScroll() { 1521 super.computeScroll(); 1522 mWallpaperOffset.syncWithScroll(); 1523 } 1524 1525 @Override 1526 public void announceForAccessibility(CharSequence text) { 1527 // Don't announce if apps is on top of us. 1528 if (!mLauncher.isAppsViewVisible()) { 1529 super.announceForAccessibility(text); 1530 } 1531 } 1532 1533 void showOutlines() { 1534 if (!workspaceInModalState() && !mIsSwitchingState) { 1535 if (mChildrenOutlineFadeOutAnimation != null) mChildrenOutlineFadeOutAnimation.cancel(); 1536 if (mChildrenOutlineFadeInAnimation != null) mChildrenOutlineFadeInAnimation.cancel(); 1537 mChildrenOutlineFadeInAnimation = LauncherAnimUtils.ofFloat(this, "childrenOutlineAlpha", 1.0f); 1538 mChildrenOutlineFadeInAnimation.setDuration(CHILDREN_OUTLINE_FADE_IN_DURATION); 1539 mChildrenOutlineFadeInAnimation.start(); 1540 } 1541 } 1542 1543 void hideOutlines() { 1544 if (!workspaceInModalState() && !mIsSwitchingState) { 1545 if (mChildrenOutlineFadeInAnimation != null) mChildrenOutlineFadeInAnimation.cancel(); 1546 if (mChildrenOutlineFadeOutAnimation != null) mChildrenOutlineFadeOutAnimation.cancel(); 1547 mChildrenOutlineFadeOutAnimation = LauncherAnimUtils.ofFloat(this, "childrenOutlineAlpha", 0.0f); 1548 mChildrenOutlineFadeOutAnimation.setDuration(CHILDREN_OUTLINE_FADE_OUT_DURATION); 1549 mChildrenOutlineFadeOutAnimation.setStartDelay(CHILDREN_OUTLINE_FADE_OUT_DELAY); 1550 mChildrenOutlineFadeOutAnimation.start(); 1551 } 1552 } 1553 1554 public void showOutlinesTemporarily() { 1555 if (!mIsPageMoving && !isTouchActive()) { 1556 snapToPage(mCurrentPage); 1557 } 1558 } 1559 1560 public void setChildrenOutlineAlpha(float alpha) { 1561 mChildrenOutlineAlpha = alpha; 1562 for (int i = 0; i < getChildCount(); i++) { 1563 CellLayout cl = (CellLayout) getChildAt(i); 1564 cl.setBackgroundAlpha(alpha); 1565 } 1566 } 1567 1568 public float getChildrenOutlineAlpha() { 1569 return mChildrenOutlineAlpha; 1570 } 1571 1572 float backgroundAlphaInterpolator(float r) { 1573 float pivotA = 0.1f; 1574 float pivotB = 0.4f; 1575 if (r < pivotA) { 1576 return 0; 1577 } else if (r > pivotB) { 1578 return 1.0f; 1579 } else { 1580 return (r - pivotA)/(pivotB - pivotA); 1581 } 1582 } 1583 1584 private void updatePageAlphaValues(int screenCenter) { 1585 boolean isInOverscroll = mOverScrollX < 0 || mOverScrollX > mMaxScrollX; 1586 if (mWorkspaceFadeInAdjacentScreens && 1587 !workspaceInModalState() && 1588 !mIsSwitchingState && 1589 !isInOverscroll) { 1590 for (int i = numCustomPages(); i < getChildCount(); i++) { 1591 CellLayout child = (CellLayout) getChildAt(i); 1592 if (child != null) { 1593 float scrollProgress = getScrollProgress(screenCenter, child, i); 1594 float alpha = 1 - Math.abs(scrollProgress); 1595 child.getShortcutsAndWidgets().setAlpha(alpha); 1596 } 1597 } 1598 } 1599 } 1600 1601 private void setChildrenBackgroundAlphaMultipliers(float a) { 1602 for (int i = 0; i < getChildCount(); i++) { 1603 CellLayout child = (CellLayout) getChildAt(i); 1604 child.setBackgroundAlphaMultiplier(a); 1605 } 1606 } 1607 1608 @TargetApi(Build.VERSION_CODES.LOLLIPOP) 1609 @Override 1610 public void enableAccessibleDrag(boolean enable) { 1611 for (int i = 0; i < getChildCount(); i++) { 1612 CellLayout child = (CellLayout) getChildAt(i); 1613 child.enableAccessibleDrag(enable, CellLayout.WORKSPACE_ACCESSIBILITY_DRAG); 1614 } 1615 1616 if (enable) { 1617 // We need to allow our individual children to become click handlers in this case 1618 setOnClickListener(null); 1619 } else { 1620 // Reset our click listener 1621 setOnClickListener(mLauncher); 1622 } 1623 mLauncher.getSearchBar().enableAccessibleDrag(enable); 1624 mLauncher.getHotseat().getLayout() 1625 .enableAccessibleDrag(enable, CellLayout.WORKSPACE_ACCESSIBILITY_DRAG); 1626 } 1627 1628 public boolean hasCustomContent() { 1629 return (mScreenOrder.size() > 0 && mScreenOrder.get(0) == CUSTOM_CONTENT_SCREEN_ID); 1630 } 1631 1632 public int numCustomPages() { 1633 return hasCustomContent() ? 1 : 0; 1634 } 1635 1636 public boolean isOnOrMovingToCustomContent() { 1637 return hasCustomContent() && getNextPage() == 0; 1638 } 1639 1640 private void updateStateForCustomContent(int screenCenter) { 1641 float translationX = 0; 1642 float progress = 0; 1643 if (hasCustomContent()) { 1644 int index = mScreenOrder.indexOf(CUSTOM_CONTENT_SCREEN_ID); 1645 1646 int scrollDelta = getScrollX() - getScrollForPage(index) - 1647 getLayoutTransitionOffsetForPage(index); 1648 float scrollRange = getScrollForPage(index + 1) - getScrollForPage(index); 1649 translationX = scrollRange - scrollDelta; 1650 progress = (scrollRange - scrollDelta) / scrollRange; 1651 1652 if (isLayoutRtl()) { 1653 translationX = Math.min(0, translationX); 1654 } else { 1655 translationX = Math.max(0, translationX); 1656 } 1657 progress = Math.max(0, progress); 1658 } 1659 1660 if (Float.compare(progress, mLastCustomContentScrollProgress) == 0) return; 1661 1662 CellLayout cc = mWorkspaceScreens.get(CUSTOM_CONTENT_SCREEN_ID); 1663 if (progress > 0 && cc.getVisibility() != VISIBLE && !workspaceInModalState()) { 1664 cc.setVisibility(VISIBLE); 1665 } 1666 1667 mLastCustomContentScrollProgress = progress; 1668 1669 // We should only update the drag layer background alpha if we are not in all apps or the 1670 // widgets tray 1671 if (mState == State.NORMAL) { 1672 mLauncher.getDragLayer().setBackgroundAlpha(progress * 0.8f); 1673 } 1674 1675 if (mLauncher.getHotseat() != null) { 1676 mLauncher.getHotseat().setTranslationX(translationX); 1677 } 1678 1679 if (getPageIndicator() != null) { 1680 getPageIndicator().setTranslationX(translationX); 1681 } 1682 1683 if (mCustomContentCallbacks != null) { 1684 mCustomContentCallbacks.onScrollProgressChanged(progress); 1685 } 1686 } 1687 1688 @Override 1689 protected OnClickListener getPageIndicatorClickListener() { 1690 AccessibilityManager am = (AccessibilityManager) 1691 getContext().getSystemService(Context.ACCESSIBILITY_SERVICE); 1692 if (!am.isTouchExplorationEnabled()) { 1693 return null; 1694 } 1695 OnClickListener listener = new OnClickListener() { 1696 @Override 1697 public void onClick(View arg0) { 1698 mLauncher.showOverviewMode(true); 1699 } 1700 }; 1701 return listener; 1702 } 1703 1704 @Override 1705 protected void screenScrolled(int screenCenter) { 1706 final boolean isRtl = isLayoutRtl(); 1707 super.screenScrolled(screenCenter); 1708 1709 updatePageAlphaValues(screenCenter); 1710 updateStateForCustomContent(screenCenter); 1711 enableHwLayersOnVisiblePages(); 1712 1713 boolean shouldOverScroll = mOverScrollX < 0 || mOverScrollX > mMaxScrollX; 1714 1715 if (shouldOverScroll) { 1716 int index = 0; 1717 final int lowerIndex = 0; 1718 final int upperIndex = getChildCount() - 1; 1719 1720 final boolean isLeftPage = mOverScrollX < 0; 1721 index = (!isRtl && isLeftPage) || (isRtl && !isLeftPage) ? lowerIndex : upperIndex; 1722 1723 CellLayout cl = (CellLayout) getChildAt(index); 1724 float effect = Math.abs(mOverScrollEffect); 1725 cl.setOverScrollAmount(Math.abs(effect), isLeftPage); 1726 1727 mOverscrollEffectSet = true; 1728 } else { 1729 if (mOverscrollEffectSet && getChildCount() > 0) { 1730 mOverscrollEffectSet = false; 1731 ((CellLayout) getChildAt(0)).setOverScrollAmount(0, false); 1732 ((CellLayout) getChildAt(getChildCount() - 1)).setOverScrollAmount(0, false); 1733 } 1734 } 1735 } 1736 1737 protected void onAttachedToWindow() { 1738 super.onAttachedToWindow(); 1739 mWindowToken = getWindowToken(); 1740 computeScroll(); 1741 mDragController.setWindowToken(mWindowToken); 1742 } 1743 1744 protected void onDetachedFromWindow() { 1745 super.onDetachedFromWindow(); 1746 mWindowToken = null; 1747 } 1748 1749 protected void onResume() { 1750 if (getPageIndicator() != null) { 1751 // In case accessibility state has changed, we need to perform this on every 1752 // attach to window 1753 OnClickListener listener = getPageIndicatorClickListener(); 1754 if (listener != null) { 1755 getPageIndicator().setOnClickListener(listener); 1756 } 1757 } 1758 1759 // Update wallpaper dimensions if they were changed since last onResume 1760 // (we also always set the wallpaper dimensions in the constructor) 1761 if (LauncherAppState.getInstance().hasWallpaperChangedSinceLastCheck()) { 1762 setWallpaperDimension(); 1763 } 1764 mWallpaperIsLiveWallpaper = mWallpaperManager.getWallpaperInfo() != null; 1765 // Force the wallpaper offset steps to be set again, because another app might have changed 1766 // them 1767 mLastSetWallpaperOffsetSteps = 0f; 1768 } 1769 1770 @Override 1771 protected void onLayout(boolean changed, int left, int top, int right, int bottom) { 1772 if (mFirstLayout && mCurrentPage >= 0 && mCurrentPage < getChildCount()) { 1773 mWallpaperOffset.syncWithScroll(); 1774 mWallpaperOffset.jumpToFinal(); 1775 } 1776 super.onLayout(changed, left, top, right, bottom); 1777 } 1778 1779 @Override 1780 protected void onDraw(Canvas canvas) { 1781 super.onDraw(canvas); 1782 1783 // Call back to LauncherModel to finish binding after the first draw 1784 post(mBindPages); 1785 } 1786 1787 @Override 1788 protected boolean onRequestFocusInDescendants(int direction, Rect previouslyFocusedRect) { 1789 if (!mLauncher.isAppsViewVisible()) { 1790 final Folder openFolder = getOpenFolder(); 1791 if (openFolder != null) { 1792 return openFolder.requestFocus(direction, previouslyFocusedRect); 1793 } else { 1794 return super.onRequestFocusInDescendants(direction, previouslyFocusedRect); 1795 } 1796 } 1797 return false; 1798 } 1799 1800 @Override 1801 public int getDescendantFocusability() { 1802 if (workspaceInModalState()) { 1803 return ViewGroup.FOCUS_BLOCK_DESCENDANTS; 1804 } 1805 return super.getDescendantFocusability(); 1806 } 1807 1808 @Override 1809 public void addFocusables(ArrayList<View> views, int direction, int focusableMode) { 1810 if (!mLauncher.isAppsViewVisible()) { 1811 final Folder openFolder = getOpenFolder(); 1812 if (openFolder != null) { 1813 openFolder.addFocusables(views, direction); 1814 } else { 1815 super.addFocusables(views, direction, focusableMode); 1816 } 1817 } 1818 } 1819 1820 public boolean workspaceInModalState() { 1821 return mState != State.NORMAL; 1822 } 1823 1824 void enableChildrenCache(int fromPage, int toPage) { 1825 if (fromPage > toPage) { 1826 final int temp = fromPage; 1827 fromPage = toPage; 1828 toPage = temp; 1829 } 1830 1831 final int screenCount = getChildCount(); 1832 1833 fromPage = Math.max(fromPage, 0); 1834 toPage = Math.min(toPage, screenCount - 1); 1835 1836 for (int i = fromPage; i <= toPage; i++) { 1837 final CellLayout layout = (CellLayout) getChildAt(i); 1838 layout.setChildrenDrawnWithCacheEnabled(true); 1839 layout.setChildrenDrawingCacheEnabled(true); 1840 } 1841 } 1842 1843 void clearChildrenCache() { 1844 final int screenCount = getChildCount(); 1845 for (int i = 0; i < screenCount; i++) { 1846 final CellLayout layout = (CellLayout) getChildAt(i); 1847 layout.setChildrenDrawnWithCacheEnabled(false); 1848 // In software mode, we don't want the items to continue to be drawn into bitmaps 1849 if (!isHardwareAccelerated()) { 1850 layout.setChildrenDrawingCacheEnabled(false); 1851 } 1852 } 1853 } 1854 1855 @Thunk void updateChildrenLayersEnabled(boolean force) { 1856 boolean small = mState == State.OVERVIEW || mIsSwitchingState; 1857 boolean enableChildrenLayers = force || small || mAnimatingViewIntoPlace || isPageMoving(); 1858 1859 if (enableChildrenLayers != mChildrenLayersEnabled) { 1860 mChildrenLayersEnabled = enableChildrenLayers; 1861 if (mChildrenLayersEnabled) { 1862 enableHwLayersOnVisiblePages(); 1863 } else { 1864 for (int i = 0; i < getPageCount(); i++) { 1865 final CellLayout cl = (CellLayout) getChildAt(i); 1866 cl.enableHardwareLayer(false); 1867 } 1868 } 1869 } 1870 } 1871 1872 private void enableHwLayersOnVisiblePages() { 1873 if (mChildrenLayersEnabled) { 1874 final int screenCount = getChildCount(); 1875 getVisiblePages(mTempVisiblePagesRange); 1876 int leftScreen = mTempVisiblePagesRange[0]; 1877 int rightScreen = mTempVisiblePagesRange[1]; 1878 if (leftScreen == rightScreen) { 1879 // make sure we're caching at least two pages always 1880 if (rightScreen < screenCount - 1) { 1881 rightScreen++; 1882 } else if (leftScreen > 0) { 1883 leftScreen--; 1884 } 1885 } 1886 1887 final CellLayout customScreen = mWorkspaceScreens.get(CUSTOM_CONTENT_SCREEN_ID); 1888 for (int i = 0; i < screenCount; i++) { 1889 final CellLayout layout = (CellLayout) getPageAt(i); 1890 1891 // enable layers between left and right screen inclusive, except for the 1892 // customScreen, which may animate its content during transitions. 1893 boolean enableLayer = layout != customScreen && 1894 leftScreen <= i && i <= rightScreen && shouldDrawChild(layout); 1895 layout.enableHardwareLayer(enableLayer); 1896 } 1897 } 1898 } 1899 1900 public void buildPageHardwareLayers() { 1901 // force layers to be enabled just for the call to buildLayer 1902 updateChildrenLayersEnabled(true); 1903 if (getWindowToken() != null) { 1904 final int childCount = getChildCount(); 1905 for (int i = 0; i < childCount; i++) { 1906 CellLayout cl = (CellLayout) getChildAt(i); 1907 cl.buildHardwareLayer(); 1908 } 1909 } 1910 updateChildrenLayersEnabled(false); 1911 } 1912 1913 protected void onWallpaperTap(MotionEvent ev) { 1914 final int[] position = mTempCell; 1915 getLocationOnScreen(position); 1916 1917 int pointerIndex = ev.getActionIndex(); 1918 position[0] += (int) ev.getX(pointerIndex); 1919 position[1] += (int) ev.getY(pointerIndex); 1920 1921 mWallpaperManager.sendWallpaperCommand(getWindowToken(), 1922 ev.getAction() == MotionEvent.ACTION_UP 1923 ? WallpaperManager.COMMAND_TAP : WallpaperManager.COMMAND_SECONDARY_TAP, 1924 position[0], position[1], 0, null); 1925 } 1926 1927 /* 1928 * 1929 * We call these methods (onDragStartedWithItemSpans/onDragStartedWithSize) whenever we 1930 * start a drag in Launcher, regardless of whether the drag has ever entered the Workspace 1931 * 1932 * These methods mark the appropriate pages as accepting drops (which alters their visual 1933 * appearance). 1934 * 1935 */ 1936 private static Rect getDrawableBounds(Drawable d) { 1937 Rect bounds = new Rect(); 1938 d.copyBounds(bounds); 1939 if (bounds.width() == 0 || bounds.height() == 0) { 1940 bounds.set(0, 0, d.getIntrinsicWidth(), d.getIntrinsicHeight()); 1941 } else { 1942 bounds.offsetTo(0, 0); 1943 } 1944 if (d instanceof PreloadIconDrawable) { 1945 int inset = -((PreloadIconDrawable) d).getOutset(); 1946 bounds.inset(inset, inset); 1947 } 1948 return bounds; 1949 } 1950 1951 public void onExternalDragStartedWithItem(View v) { 1952 // Compose a drag bitmap with the view scaled to the icon size 1953 LauncherAppState app = LauncherAppState.getInstance(); 1954 DeviceProfile grid = app.getDynamicGrid().getDeviceProfile(); 1955 int iconSize = grid.iconSizePx; 1956 int bmpWidth = v.getMeasuredWidth(); 1957 int bmpHeight = v.getMeasuredHeight(); 1958 1959 // If this is a text view, use its drawable instead 1960 if (v instanceof TextView) { 1961 Drawable d = getTextViewIcon((TextView) v); 1962 Rect bounds = getDrawableBounds(d); 1963 bmpWidth = bounds.width(); 1964 bmpHeight = bounds.height(); 1965 } 1966 1967 // Compose the bitmap to create the icon from 1968 Bitmap b = Bitmap.createBitmap(bmpWidth, bmpHeight, 1969 Bitmap.Config.ARGB_8888); 1970 mCanvas.setBitmap(b); 1971 drawDragView(v, mCanvas, 0); 1972 mCanvas.setBitmap(null); 1973 1974 // The outline is used to visualize where the item will land if dropped 1975 mDragOutline = createDragOutline(b, DRAG_BITMAP_PADDING, iconSize, iconSize, true); 1976 } 1977 1978 public void onDragStartedWithItem(PendingAddItemInfo info, Bitmap b, boolean clipAlpha) { 1979 int[] size = estimateItemSize(info, false); 1980 1981 // The outline is used to visualize where the item will land if dropped 1982 mDragOutline = createDragOutline(b, DRAG_BITMAP_PADDING, size[0], size[1], clipAlpha); 1983 } 1984 1985 public void exitWidgetResizeMode() { 1986 DragLayer dragLayer = mLauncher.getDragLayer(); 1987 dragLayer.clearAllResizeFrames(); 1988 } 1989 1990 @Override 1991 protected void getFreeScrollPageRange(int[] range) { 1992 getOverviewModePages(range); 1993 } 1994 1995 private void getOverviewModePages(int[] range) { 1996 int start = numCustomPages(); 1997 int end = getChildCount() - 1; 1998 1999 range[0] = Math.max(0, Math.min(start, getChildCount() - 1)); 2000 range[1] = Math.max(0, end); 2001 } 2002 2003 protected void onStartReordering() { 2004 super.onStartReordering(); 2005 showOutlines(); 2006 // Reordering handles its own animations, disable the automatic ones. 2007 disableLayoutTransitions(); 2008 } 2009 2010 protected void onEndReordering() { 2011 super.onEndReordering(); 2012 2013 if (mLauncher.isWorkspaceLoading()) { 2014 // Invalid and dangerous operation if workspace is loading 2015 return; 2016 } 2017 2018 hideOutlines(); 2019 mScreenOrder.clear(); 2020 int count = getChildCount(); 2021 for (int i = 0; i < count; i++) { 2022 CellLayout cl = ((CellLayout) getChildAt(i)); 2023 mScreenOrder.add(getIdForScreen(cl)); 2024 } 2025 2026 mLauncher.getModel().updateWorkspaceScreenOrder(mLauncher, mScreenOrder); 2027 2028 // Re-enable auto layout transitions for page deletion. 2029 enableLayoutTransitions(); 2030 } 2031 2032 public boolean isInOverviewMode() { 2033 return mState == State.OVERVIEW; 2034 } 2035 2036 int getOverviewModeTranslationY() { 2037 LauncherAppState app = LauncherAppState.getInstance(); 2038 DeviceProfile grid = app.getDynamicGrid().getDeviceProfile(); 2039 Rect overviewBar = grid.getOverviewModeButtonBarRect(); 2040 2041 int availableHeight = getViewportHeight(); 2042 int scaledHeight = (int) (mOverviewModeShrinkFactor * getNormalChildHeight()); 2043 int offsetFromTopEdge = (availableHeight - scaledHeight) / 2; 2044 int offsetToCenterInOverview = (availableHeight - mInsets.top - overviewBar.height() 2045 - scaledHeight) / 2; 2046 2047 return -offsetFromTopEdge + mInsets.top + offsetToCenterInOverview; 2048 } 2049 2050 /** 2051 * Sets the current workspace {@link State}, returning an animation transitioning the workspace 2052 * to that new state. 2053 */ 2054 public Animator setStateWithAnimation(State toState, int toPage, boolean animated, 2055 HashMap<View, Integer> layerViews) { 2056 // Create the animation to the new state 2057 Animator workspaceAnim = mStateTransitionAnimation.getAnimationToState(getState(), 2058 toState, toPage, animated, layerViews); 2059 2060 // Update the current state 2061 mState = toState; 2062 updateAccessibilityFlags(); 2063 2064 return workspaceAnim; 2065 } 2066 2067 State getState() { 2068 return mState; 2069 } 2070 2071 private void updateAccessibilityFlags() { 2072 int accessible = mState == State.NORMAL ? 2073 IMPORTANT_FOR_ACCESSIBILITY_NO : 2074 IMPORTANT_FOR_ACCESSIBILITY_NO_HIDE_DESCENDANTS; 2075 setImportantForAccessibility(accessible); 2076 } 2077 2078 @Override 2079 public void onLauncherTransitionPrepare(Launcher l, boolean animated, boolean toWorkspace) { 2080 mIsSwitchingState = true; 2081 2082 // Invalidate here to ensure that the pages are rendered during the state change transition. 2083 invalidate(); 2084 2085 updateChildrenLayersEnabled(false); 2086 hideCustomContentIfNecessary(); 2087 } 2088 2089 @Override 2090 public void onLauncherTransitionStart(Launcher l, boolean animated, boolean toWorkspace) { 2091 } 2092 2093 @Override 2094 public void onLauncherTransitionStep(Launcher l, float t) { 2095 mTransitionProgress = t; 2096 } 2097 2098 @Override 2099 public void onLauncherTransitionEnd(Launcher l, boolean animated, boolean toWorkspace) { 2100 mIsSwitchingState = false; 2101 updateChildrenLayersEnabled(false); 2102 showCustomContentIfNecessary(); 2103 } 2104 2105 void updateCustomContentVisibility() { 2106 int visibility = mState == Workspace.State.NORMAL ? VISIBLE : INVISIBLE; 2107 if (hasCustomContent()) { 2108 mWorkspaceScreens.get(CUSTOM_CONTENT_SCREEN_ID).setVisibility(visibility); 2109 } 2110 } 2111 2112 void showCustomContentIfNecessary() { 2113 boolean show = mState == Workspace.State.NORMAL; 2114 if (show && hasCustomContent()) { 2115 mWorkspaceScreens.get(CUSTOM_CONTENT_SCREEN_ID).setVisibility(VISIBLE); 2116 } 2117 } 2118 2119 void hideCustomContentIfNecessary() { 2120 boolean hide = mState != Workspace.State.NORMAL; 2121 if (hide && hasCustomContent()) { 2122 disableLayoutTransitions(); 2123 mWorkspaceScreens.get(CUSTOM_CONTENT_SCREEN_ID).setVisibility(INVISIBLE); 2124 enableLayoutTransitions(); 2125 } 2126 } 2127 2128 @Override 2129 public View getContent() { 2130 return this; 2131 } 2132 2133 /** 2134 * Returns the drawable for the given text view. 2135 */ 2136 public static Drawable getTextViewIcon(TextView tv) { 2137 final Drawable[] drawables = tv.getCompoundDrawables(); 2138 for (int i = 0; i < drawables.length; i++) { 2139 if (drawables[i] != null) { 2140 return drawables[i]; 2141 } 2142 } 2143 return null; 2144 } 2145 2146 /** 2147 * Draw the View v into the given Canvas. 2148 * 2149 * @param v the view to draw 2150 * @param destCanvas the canvas to draw on 2151 * @param padding the horizontal and vertical padding to use when drawing 2152 */ 2153 private static void drawDragView(View v, Canvas destCanvas, int padding) { 2154 final Rect clipRect = sTempRect; 2155 v.getDrawingRect(clipRect); 2156 2157 boolean textVisible = false; 2158 2159 destCanvas.save(); 2160 if (v instanceof TextView) { 2161 Drawable d = getTextViewIcon((TextView) v); 2162 Rect bounds = getDrawableBounds(d); 2163 clipRect.set(0, 0, bounds.width() + padding, bounds.height() + padding); 2164 destCanvas.translate(padding / 2 - bounds.left, padding / 2 - bounds.top); 2165 d.draw(destCanvas); 2166 } else { 2167 if (v instanceof FolderIcon) { 2168 // For FolderIcons the text can bleed into the icon area, and so we need to 2169 // hide the text completely (which can't be achieved by clipping). 2170 if (((FolderIcon) v).getTextVisible()) { 2171 ((FolderIcon) v).setTextVisible(false); 2172 textVisible = true; 2173 } 2174 } 2175 destCanvas.translate(-v.getScrollX() + padding / 2, -v.getScrollY() + padding / 2); 2176 destCanvas.clipRect(clipRect, Op.REPLACE); 2177 v.draw(destCanvas); 2178 2179 // Restore text visibility of FolderIcon if necessary 2180 if (textVisible) { 2181 ((FolderIcon) v).setTextVisible(true); 2182 } 2183 } 2184 destCanvas.restore(); 2185 } 2186 2187 /** 2188 * Returns a new bitmap to show when the given View is being dragged around. 2189 * Responsibility for the bitmap is transferred to the caller. 2190 * @param expectedPadding padding to add to the drag view. If a different padding was used 2191 * its value will be changed 2192 */ 2193 public Bitmap createDragBitmap(View v, AtomicInteger expectedPadding) { 2194 Bitmap b; 2195 2196 int padding = expectedPadding.get(); 2197 if (v instanceof TextView) { 2198 Drawable d = getTextViewIcon((TextView) v); 2199 Rect bounds = getDrawableBounds(d); 2200 b = Bitmap.createBitmap(bounds.width() + padding, 2201 bounds.height() + padding, Bitmap.Config.ARGB_8888); 2202 expectedPadding.set(padding - bounds.left - bounds.top); 2203 } else { 2204 b = Bitmap.createBitmap( 2205 v.getWidth() + padding, v.getHeight() + padding, Bitmap.Config.ARGB_8888); 2206 } 2207 2208 mCanvas.setBitmap(b); 2209 drawDragView(v, mCanvas, padding); 2210 mCanvas.setBitmap(null); 2211 2212 return b; 2213 } 2214 2215 /** 2216 * Returns a new bitmap to be used as the object outline, e.g. to visualize the drop location. 2217 * Responsibility for the bitmap is transferred to the caller. 2218 */ 2219 private Bitmap createDragOutline(View v, int padding) { 2220 final int outlineColor = getResources().getColor(R.color.outline_color); 2221 final Bitmap b = Bitmap.createBitmap( 2222 v.getWidth() + padding, v.getHeight() + padding, Bitmap.Config.ARGB_8888); 2223 2224 mCanvas.setBitmap(b); 2225 drawDragView(v, mCanvas, padding); 2226 mOutlineHelper.applyExpensiveOutlineWithBlur(b, mCanvas, outlineColor, outlineColor); 2227 mCanvas.setBitmap(null); 2228 return b; 2229 } 2230 2231 /** 2232 * Returns a new bitmap to be used as the object outline, e.g. to visualize the drop location. 2233 * Responsibility for the bitmap is transferred to the caller. 2234 */ 2235 private Bitmap createDragOutline(Bitmap orig, int padding, int w, int h, 2236 boolean clipAlpha) { 2237 final int outlineColor = getResources().getColor(R.color.outline_color); 2238 final Bitmap b = Bitmap.createBitmap(w, h, Bitmap.Config.ARGB_8888); 2239 mCanvas.setBitmap(b); 2240 2241 Rect src = new Rect(0, 0, orig.getWidth(), orig.getHeight()); 2242 float scaleFactor = Math.min((w - padding) / (float) orig.getWidth(), 2243 (h - padding) / (float) orig.getHeight()); 2244 int scaledWidth = (int) (scaleFactor * orig.getWidth()); 2245 int scaledHeight = (int) (scaleFactor * orig.getHeight()); 2246 Rect dst = new Rect(0, 0, scaledWidth, scaledHeight); 2247 2248 // center the image 2249 dst.offset((w - scaledWidth) / 2, (h - scaledHeight) / 2); 2250 2251 mCanvas.drawBitmap(orig, src, dst, null); 2252 mOutlineHelper.applyExpensiveOutlineWithBlur(b, mCanvas, outlineColor, outlineColor, 2253 clipAlpha); 2254 mCanvas.setBitmap(null); 2255 2256 return b; 2257 } 2258 2259 public void startDrag(CellLayout.CellInfo cellInfo) { 2260 startDrag(cellInfo, false); 2261 } 2262 2263 @Override 2264 public void startDrag(CellLayout.CellInfo cellInfo, boolean accessible) { 2265 View child = cellInfo.cell; 2266 2267 // Make sure the drag was started by a long press as opposed to a long click. 2268 if (!child.isInTouchMode()) { 2269 return; 2270 } 2271 2272 mDragInfo = cellInfo; 2273 child.setVisibility(INVISIBLE); 2274 CellLayout layout = (CellLayout) child.getParent().getParent(); 2275 layout.prepareChildForDrag(child); 2276 2277 beginDragShared(child, this, accessible); 2278 } 2279 2280 public void beginDragShared(View child, DragSource source, boolean accessible) { 2281 beginDragShared(child, new Point(), source, accessible); 2282 } 2283 2284 public void beginDragShared(View child, Point relativeTouchPos, DragSource source, 2285 boolean accessible) { 2286 child.clearFocus(); 2287 child.setPressed(false); 2288 2289 // The outline is used to visualize where the item will land if dropped 2290 mDragOutline = createDragOutline(child, DRAG_BITMAP_PADDING); 2291 2292 mLauncher.onDragStarted(child); 2293 // The drag bitmap follows the touch point around on the screen 2294 AtomicInteger padding = new AtomicInteger(DRAG_BITMAP_PADDING); 2295 final Bitmap b = createDragBitmap(child, padding); 2296 2297 final int bmpWidth = b.getWidth(); 2298 final int bmpHeight = b.getHeight(); 2299 2300 float scale = mLauncher.getDragLayer().getLocationInDragLayer(child, mTempXY); 2301 int dragLayerX = Math.round(mTempXY[0] - (bmpWidth - scale * child.getWidth()) / 2); 2302 int dragLayerY = Math.round(mTempXY[1] - (bmpHeight - scale * bmpHeight) / 2 2303 - padding.get() / 2); 2304 2305 LauncherAppState app = LauncherAppState.getInstance(); 2306 DeviceProfile grid = app.getDynamicGrid().getDeviceProfile(); 2307 Point dragVisualizeOffset = null; 2308 Rect dragRect = null; 2309 if (child instanceof BubbleTextView) { 2310 BubbleTextView icon = (BubbleTextView) child; 2311 int iconSize = grid.iconSizePx; 2312 int top = child.getPaddingTop(); 2313 int left = (bmpWidth - iconSize) / 2; 2314 int right = left + iconSize; 2315 int bottom = top + iconSize; 2316 if (icon.isLayoutHorizontal()) { 2317 // If the layout is horizontal, then if we are just picking up the icon, then just 2318 // use the child position since the icon is top-left aligned. Otherwise, offset 2319 // the drag layer position horizontally so that the icon is under the current 2320 // touch position. 2321 if (icon.getIcon().getBounds().contains(relativeTouchPos.x, relativeTouchPos.y)) { 2322 dragLayerX = Math.round(mTempXY[0]); 2323 } else { 2324 dragLayerX = Math.round(mTempXY[0] + relativeTouchPos.x - (bmpWidth / 2)); 2325 } 2326 } 2327 dragLayerY += top; 2328 // Note: The drag region is used to calculate drag layer offsets, but the 2329 // dragVisualizeOffset in addition to the dragRect (the size) to position the outline. 2330 dragVisualizeOffset = new Point(-padding.get() / 2, padding.get() / 2); 2331 dragRect = new Rect(left, top, right, bottom); 2332 } else if (child instanceof FolderIcon) { 2333 int previewSize = grid.folderIconSizePx; 2334 dragRect = new Rect(0, child.getPaddingTop(), child.getWidth(), previewSize); 2335 } 2336 2337 // Clear the pressed state if necessary 2338 if (child instanceof BubbleTextView) { 2339 BubbleTextView icon = (BubbleTextView) child; 2340 icon.clearPressedBackground(); 2341 } 2342 2343 if (child.getTag() == null || !(child.getTag() instanceof ItemInfo)) { 2344 String msg = "Drag started with a view that has no tag set. This " 2345 + "will cause a crash (issue 11627249) down the line. " 2346 + "View: " + child + " tag: " + child.getTag(); 2347 throw new IllegalStateException(msg); 2348 } 2349 2350 DragView dv = mDragController.startDrag(b, dragLayerX, dragLayerY, source, child.getTag(), 2351 DragController.DRAG_ACTION_MOVE, dragVisualizeOffset, dragRect, scale, accessible); 2352 dv.setIntrinsicIconScaleFactor(source.getIntrinsicIconScaleFactor()); 2353 2354 if (child.getParent() instanceof ShortcutAndWidgetContainer) { 2355 mDragSourceInternal = (ShortcutAndWidgetContainer) child.getParent(); 2356 } 2357 2358 b.recycle(); 2359 } 2360 2361 public void beginExternalDragShared(View child, DragSource source) { 2362 LauncherAppState app = LauncherAppState.getInstance(); 2363 DeviceProfile grid = app.getDynamicGrid().getDeviceProfile(); 2364 int iconSize = grid.iconSizePx; 2365 2366 // Notify launcher of drag start 2367 mLauncher.onDragStarted(child); 2368 2369 // Compose a new drag bitmap that is of the icon size 2370 AtomicInteger padding = new AtomicInteger(DRAG_BITMAP_PADDING); 2371 final Bitmap tmpB = createDragBitmap(child, padding); 2372 Bitmap b = Bitmap.createBitmap(iconSize, iconSize, Bitmap.Config.ARGB_8888); 2373 Paint p = new Paint(); 2374 p.setFilterBitmap(true); 2375 mCanvas.setBitmap(b); 2376 mCanvas.drawBitmap(tmpB, new Rect(0, 0, tmpB.getWidth(), tmpB.getHeight()), 2377 new Rect(0, 0, iconSize, iconSize), p); 2378 mCanvas.setBitmap(null); 2379 2380 // Find the child's location on the screen 2381 int bmpWidth = tmpB.getWidth(); 2382 float iconScale = (float) bmpWidth / iconSize; 2383 float scale = mLauncher.getDragLayer().getLocationInDragLayer(child, mTempXY) * iconScale; 2384 int dragLayerX = Math.round(mTempXY[0] - (bmpWidth - scale * child.getWidth()) / 2); 2385 int dragLayerY = Math.round(mTempXY[1]); 2386 2387 // Note: The drag region is used to calculate drag layer offsets, but the 2388 // dragVisualizeOffset in addition to the dragRect (the size) to position the outline. 2389 Point dragVisualizeOffset = new Point(-padding.get() / 2, padding.get() / 2); 2390 Rect dragRect = new Rect(0, 0, iconSize, iconSize); 2391 2392 if (child.getTag() == null || !(child.getTag() instanceof ItemInfo)) { 2393 String msg = "Drag started with a view that has no tag set. This " 2394 + "will cause a crash (issue 11627249) down the line. " 2395 + "View: " + child + " tag: " + child.getTag(); 2396 throw new IllegalStateException(msg); 2397 } 2398 2399 // Start the drag 2400 DragView dv = mDragController.startDrag(b, dragLayerX, dragLayerY, source, child.getTag(), 2401 DragController.DRAG_ACTION_MOVE, dragVisualizeOffset, dragRect, scale, false); 2402 dv.setIntrinsicIconScaleFactor(source.getIntrinsicIconScaleFactor()); 2403 2404 // Recycle temporary bitmaps 2405 tmpB.recycle(); 2406 } 2407 2408 public boolean transitionStateShouldAllowDrop() { 2409 return ((!isSwitchingState() || mTransitionProgress > 0.5f) && 2410 (mState == State.NORMAL || mState == State.SPRING_LOADED)); 2411 } 2412 2413 /** 2414 * {@inheritDoc} 2415 */ 2416 public boolean acceptDrop(DragObject d) { 2417 // If it's an external drop (e.g. from All Apps), check if it should be accepted 2418 CellLayout dropTargetLayout = mDropToLayout; 2419 if (d.dragSource != this) { 2420 // Don't accept the drop if we're not over a screen at time of drop 2421 if (dropTargetLayout == null) { 2422 return false; 2423 } 2424 if (!transitionStateShouldAllowDrop()) return false; 2425 2426 mDragViewVisualCenter = d.getVisualCenter(mDragViewVisualCenter); 2427 2428 // We want the point to be mapped to the dragTarget. 2429 if (mLauncher.isHotseatLayout(dropTargetLayout)) { 2430 mapPointFromSelfToHotseatLayout(mLauncher.getHotseat(), mDragViewVisualCenter); 2431 } else { 2432 mapPointFromSelfToChild(dropTargetLayout, mDragViewVisualCenter, null); 2433 } 2434 2435 int spanX = 1; 2436 int spanY = 1; 2437 if (mDragInfo != null) { 2438 final CellLayout.CellInfo dragCellInfo = mDragInfo; 2439 spanX = dragCellInfo.spanX; 2440 spanY = dragCellInfo.spanY; 2441 } else { 2442 final ItemInfo dragInfo = (ItemInfo) d.dragInfo; 2443 spanX = dragInfo.spanX; 2444 spanY = dragInfo.spanY; 2445 } 2446 2447 int minSpanX = spanX; 2448 int minSpanY = spanY; 2449 if (d.dragInfo instanceof PendingAddWidgetInfo) { 2450 minSpanX = ((PendingAddWidgetInfo) d.dragInfo).minSpanX; 2451 minSpanY = ((PendingAddWidgetInfo) d.dragInfo).minSpanY; 2452 } 2453 2454 mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], 2455 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, dropTargetLayout, 2456 mTargetCell); 2457 float distance = dropTargetLayout.getDistanceFromCell(mDragViewVisualCenter[0], 2458 mDragViewVisualCenter[1], mTargetCell); 2459 if (mCreateUserFolderOnDrop && willCreateUserFolder((ItemInfo) d.dragInfo, 2460 dropTargetLayout, mTargetCell, distance, true)) { 2461 return true; 2462 } 2463 2464 if (mAddToExistingFolderOnDrop && willAddToExistingUserFolder((ItemInfo) d.dragInfo, 2465 dropTargetLayout, mTargetCell, distance)) { 2466 return true; 2467 } 2468 2469 int[] resultSpan = new int[2]; 2470 mTargetCell = dropTargetLayout.performReorder((int) mDragViewVisualCenter[0], 2471 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, spanX, spanY, 2472 null, mTargetCell, resultSpan, CellLayout.MODE_ACCEPT_DROP); 2473 boolean foundCell = mTargetCell[0] >= 0 && mTargetCell[1] >= 0; 2474 2475 // Don't accept the drop if there's no room for the item 2476 if (!foundCell) { 2477 // Don't show the message if we are dropping on the AllApps button and the hotseat 2478 // is full 2479 boolean isHotseat = mLauncher.isHotseatLayout(dropTargetLayout); 2480 if (mTargetCell != null && isHotseat) { 2481 Hotseat hotseat = mLauncher.getHotseat(); 2482 if (hotseat.isAllAppsButtonRank( 2483 hotseat.getOrderInHotseat(mTargetCell[0], mTargetCell[1]))) { 2484 return false; 2485 } 2486 } 2487 2488 mLauncher.showOutOfSpaceMessage(isHotseat); 2489 return false; 2490 } 2491 } 2492 2493 long screenId = getIdForScreen(dropTargetLayout); 2494 if (screenId == EXTRA_EMPTY_SCREEN_ID) { 2495 commitExtraEmptyScreen(); 2496 } 2497 2498 return true; 2499 } 2500 2501 boolean willCreateUserFolder(ItemInfo info, CellLayout target, int[] targetCell, float 2502 distance, boolean considerTimeout) { 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 boolean hasntMoved = false; 2514 if (mDragInfo != null) { 2515 hasntMoved = dropOverView == mDragInfo.cell; 2516 } 2517 2518 if (dropOverView == null || hasntMoved || (considerTimeout && !mCreateUserFolderOnDrop)) { 2519 return false; 2520 } 2521 2522 boolean aboveShortcut = (dropOverView.getTag() instanceof ShortcutInfo); 2523 boolean willBecomeShortcut = 2524 (info.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPLICATION || 2525 info.itemType == LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT); 2526 2527 return (aboveShortcut && willBecomeShortcut); 2528 } 2529 2530 boolean willAddToExistingUserFolder(Object dragInfo, CellLayout target, int[] targetCell, 2531 float distance) { 2532 if (distance > mMaxDistanceForFolderCreation) return false; 2533 View dropOverView = target.getChildAt(targetCell[0], targetCell[1]); 2534 2535 if (dropOverView != null) { 2536 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) dropOverView.getLayoutParams(); 2537 if (lp.useTmpCoords && (lp.tmpCellX != lp.cellX || lp.tmpCellY != lp.tmpCellY)) { 2538 return false; 2539 } 2540 } 2541 2542 if (dropOverView instanceof FolderIcon) { 2543 FolderIcon fi = (FolderIcon) dropOverView; 2544 if (fi.acceptDrop(dragInfo)) { 2545 return true; 2546 } 2547 } 2548 return false; 2549 } 2550 2551 boolean createUserFolderIfNecessary(View newView, long container, CellLayout target, 2552 int[] targetCell, float distance, boolean external, DragView dragView, 2553 Runnable postAnimationRunnable) { 2554 if (distance > mMaxDistanceForFolderCreation) return false; 2555 View v = target.getChildAt(targetCell[0], targetCell[1]); 2556 2557 boolean hasntMoved = false; 2558 if (mDragInfo != null) { 2559 CellLayout cellParent = getParentCellLayoutForView(mDragInfo.cell); 2560 hasntMoved = (mDragInfo.cellX == targetCell[0] && 2561 mDragInfo.cellY == targetCell[1]) && (cellParent == target); 2562 } 2563 2564 if (v == null || hasntMoved || !mCreateUserFolderOnDrop) return false; 2565 mCreateUserFolderOnDrop = false; 2566 final long screenId = (targetCell == null) ? mDragInfo.screenId : getIdForScreen(target); 2567 2568 boolean aboveShortcut = (v.getTag() instanceof ShortcutInfo); 2569 boolean willBecomeShortcut = (newView.getTag() instanceof ShortcutInfo); 2570 2571 if (aboveShortcut && willBecomeShortcut) { 2572 ShortcutInfo sourceInfo = (ShortcutInfo) newView.getTag(); 2573 ShortcutInfo destInfo = (ShortcutInfo) v.getTag(); 2574 // if the drag started here, we need to remove it from the workspace 2575 if (!external) { 2576 getParentCellLayoutForView(mDragInfo.cell).removeView(mDragInfo.cell); 2577 } 2578 2579 Rect folderLocation = new Rect(); 2580 float scale = mLauncher.getDragLayer().getDescendantRectRelativeToSelf(v, folderLocation); 2581 target.removeView(v); 2582 2583 FolderIcon fi = 2584 mLauncher.addFolder(target, container, screenId, targetCell[0], targetCell[1]); 2585 destInfo.cellX = -1; 2586 destInfo.cellY = -1; 2587 sourceInfo.cellX = -1; 2588 sourceInfo.cellY = -1; 2589 2590 // If the dragView is null, we can't animate 2591 boolean animate = dragView != null; 2592 if (animate) { 2593 fi.performCreateAnimation(destInfo, v, sourceInfo, dragView, folderLocation, scale, 2594 postAnimationRunnable); 2595 } else { 2596 fi.addItem(destInfo); 2597 fi.addItem(sourceInfo); 2598 } 2599 return true; 2600 } 2601 return false; 2602 } 2603 2604 boolean addToExistingFolderIfNecessary(View newView, CellLayout target, int[] targetCell, 2605 float distance, DragObject d, boolean external) { 2606 if (distance > mMaxDistanceForFolderCreation) return false; 2607 2608 View dropOverView = target.getChildAt(targetCell[0], targetCell[1]); 2609 if (!mAddToExistingFolderOnDrop) return false; 2610 mAddToExistingFolderOnDrop = false; 2611 2612 if (dropOverView instanceof FolderIcon) { 2613 FolderIcon fi = (FolderIcon) dropOverView; 2614 if (fi.acceptDrop(d.dragInfo)) { 2615 fi.onDrop(d); 2616 2617 // if the drag started here, we need to remove it from the workspace 2618 if (!external) { 2619 getParentCellLayoutForView(mDragInfo.cell).removeView(mDragInfo.cell); 2620 } 2621 return true; 2622 } 2623 } 2624 return false; 2625 } 2626 2627 @Override 2628 public void prepareAccessibilityDrop() { } 2629 2630 public void onDrop(final DragObject d) { 2631 mDragViewVisualCenter = d.getVisualCenter(mDragViewVisualCenter); 2632 CellLayout dropTargetLayout = mDropToLayout; 2633 2634 // We want the point to be mapped to the dragTarget. 2635 if (dropTargetLayout != null) { 2636 if (mLauncher.isHotseatLayout(dropTargetLayout)) { 2637 mapPointFromSelfToHotseatLayout(mLauncher.getHotseat(), mDragViewVisualCenter); 2638 } else { 2639 mapPointFromSelfToChild(dropTargetLayout, mDragViewVisualCenter, null); 2640 } 2641 } 2642 2643 int snapScreen = WorkspaceStateTransitionAnimation.SCROLL_TO_CURRENT_PAGE; 2644 boolean resizeOnDrop = false; 2645 if (d.dragSource != this) { 2646 final int[] touchXY = new int[] { (int) mDragViewVisualCenter[0], 2647 (int) mDragViewVisualCenter[1] }; 2648 onDropExternal(touchXY, d.dragInfo, dropTargetLayout, false, d); 2649 } else if (mDragInfo != null) { 2650 final View cell = mDragInfo.cell; 2651 2652 Runnable resizeRunnable = null; 2653 if (dropTargetLayout != null && !d.cancelled) { 2654 // Move internally 2655 boolean hasMovedLayouts = (getParentCellLayoutForView(cell) != dropTargetLayout); 2656 boolean hasMovedIntoHotseat = mLauncher.isHotseatLayout(dropTargetLayout); 2657 long container = hasMovedIntoHotseat ? 2658 LauncherSettings.Favorites.CONTAINER_HOTSEAT : 2659 LauncherSettings.Favorites.CONTAINER_DESKTOP; 2660 long screenId = (mTargetCell[0] < 0) ? 2661 mDragInfo.screenId : getIdForScreen(dropTargetLayout); 2662 int spanX = mDragInfo != null ? mDragInfo.spanX : 1; 2663 int spanY = mDragInfo != null ? mDragInfo.spanY : 1; 2664 // First we find the cell nearest to point at which the item is 2665 // dropped, without any consideration to whether there is an item there. 2666 2667 mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], (int) 2668 mDragViewVisualCenter[1], spanX, spanY, dropTargetLayout, mTargetCell); 2669 float distance = dropTargetLayout.getDistanceFromCell(mDragViewVisualCenter[0], 2670 mDragViewVisualCenter[1], mTargetCell); 2671 2672 // If the item being dropped is a shortcut and the nearest drop 2673 // cell also contains a shortcut, then create a folder with the two shortcuts. 2674 if (!mInScrollArea && createUserFolderIfNecessary(cell, container, 2675 dropTargetLayout, mTargetCell, distance, false, d.dragView, null)) { 2676 return; 2677 } 2678 2679 if (addToExistingFolderIfNecessary(cell, dropTargetLayout, mTargetCell, 2680 distance, d, false)) { 2681 return; 2682 } 2683 2684 // Aside from the special case where we're dropping a shortcut onto a shortcut, 2685 // we need to find the nearest cell location that is vacant 2686 ItemInfo item = (ItemInfo) d.dragInfo; 2687 int minSpanX = item.spanX; 2688 int minSpanY = item.spanY; 2689 if (item.minSpanX > 0 && item.minSpanY > 0) { 2690 minSpanX = item.minSpanX; 2691 minSpanY = item.minSpanY; 2692 } 2693 2694 int[] resultSpan = new int[2]; 2695 mTargetCell = dropTargetLayout.performReorder((int) mDragViewVisualCenter[0], 2696 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, spanX, spanY, cell, 2697 mTargetCell, resultSpan, CellLayout.MODE_ON_DROP); 2698 2699 boolean foundCell = mTargetCell[0] >= 0 && mTargetCell[1] >= 0; 2700 2701 // if the widget resizes on drop 2702 if (foundCell && (cell instanceof AppWidgetHostView) && 2703 (resultSpan[0] != item.spanX || resultSpan[1] != item.spanY)) { 2704 resizeOnDrop = true; 2705 item.spanX = resultSpan[0]; 2706 item.spanY = resultSpan[1]; 2707 AppWidgetHostView awhv = (AppWidgetHostView) cell; 2708 AppWidgetResizeFrame.updateWidgetSizeRanges(awhv, mLauncher, resultSpan[0], 2709 resultSpan[1]); 2710 } 2711 2712 if (getScreenIdForPageIndex(mCurrentPage) != screenId && !hasMovedIntoHotseat) { 2713 snapScreen = getPageIndexForScreenId(screenId); 2714 snapToPage(snapScreen); 2715 } 2716 2717 if (foundCell) { 2718 final ItemInfo info = (ItemInfo) cell.getTag(); 2719 if (hasMovedLayouts) { 2720 // Reparent the view 2721 CellLayout parentCell = getParentCellLayoutForView(cell); 2722 if (parentCell != null) { 2723 parentCell.removeView(cell); 2724 } else if (LauncherAppState.isDogfoodBuild()) { 2725 throw new NullPointerException("mDragInfo.cell has null parent"); 2726 } 2727 addInScreen(cell, container, screenId, mTargetCell[0], mTargetCell[1], 2728 info.spanX, info.spanY); 2729 } 2730 2731 // update the item's position after drop 2732 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) cell.getLayoutParams(); 2733 lp.cellX = lp.tmpCellX = mTargetCell[0]; 2734 lp.cellY = lp.tmpCellY = mTargetCell[1]; 2735 lp.cellHSpan = item.spanX; 2736 lp.cellVSpan = item.spanY; 2737 lp.isLockedToGrid = true; 2738 2739 if (container != LauncherSettings.Favorites.CONTAINER_HOTSEAT && 2740 cell instanceof LauncherAppWidgetHostView) { 2741 final CellLayout cellLayout = dropTargetLayout; 2742 // We post this call so that the widget has a chance to be placed 2743 // in its final location 2744 2745 final LauncherAppWidgetHostView hostView = (LauncherAppWidgetHostView) cell; 2746 AppWidgetProviderInfo pInfo = hostView.getAppWidgetInfo(); 2747 if (pInfo != null && pInfo.resizeMode != AppWidgetProviderInfo.RESIZE_NONE 2748 && !d.accessibleDrag) { 2749 final Runnable addResizeFrame = new Runnable() { 2750 public void run() { 2751 DragLayer dragLayer = mLauncher.getDragLayer(); 2752 dragLayer.addResizeFrame(info, hostView, cellLayout); 2753 } 2754 }; 2755 resizeRunnable = (new Runnable() { 2756 public void run() { 2757 if (!isPageMoving()) { 2758 addResizeFrame.run(); 2759 } else { 2760 mDelayedResizeRunnable = addResizeFrame; 2761 } 2762 } 2763 }); 2764 } 2765 } 2766 2767 LauncherModel.modifyItemInDatabase(mLauncher, info, container, screenId, lp.cellX, 2768 lp.cellY, item.spanX, item.spanY); 2769 } else { 2770 // If we can't find a drop location, we return the item to its original position 2771 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) cell.getLayoutParams(); 2772 mTargetCell[0] = lp.cellX; 2773 mTargetCell[1] = lp.cellY; 2774 CellLayout layout = (CellLayout) cell.getParent().getParent(); 2775 layout.markCellsAsOccupiedForView(cell); 2776 } 2777 } 2778 2779 final CellLayout parent = (CellLayout) cell.getParent().getParent(); 2780 final Runnable finalResizeRunnable = resizeRunnable; 2781 // Prepare it to be animated into its new position 2782 // This must be called after the view has been re-parented 2783 final Runnable onCompleteRunnable = new Runnable() { 2784 @Override 2785 public void run() { 2786 mAnimatingViewIntoPlace = false; 2787 updateChildrenLayersEnabled(false); 2788 if (finalResizeRunnable != null) { 2789 finalResizeRunnable.run(); 2790 } 2791 } 2792 }; 2793 mAnimatingViewIntoPlace = true; 2794 if (d.dragView.hasDrawn()) { 2795 final ItemInfo info = (ItemInfo) cell.getTag(); 2796 boolean isWidget = info.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET 2797 || info.itemType == LauncherSettings.Favorites.ITEM_TYPE_CUSTOM_APPWIDGET; 2798 if (isWidget) { 2799 int animationType = resizeOnDrop ? ANIMATE_INTO_POSITION_AND_RESIZE : 2800 ANIMATE_INTO_POSITION_AND_DISAPPEAR; 2801 animateWidgetDrop(info, parent, d.dragView, 2802 onCompleteRunnable, animationType, cell, false); 2803 } else { 2804 int duration = snapScreen < 0 ? 2805 WorkspaceStateTransitionAnimation.SCROLL_TO_CURRENT_PAGE : 2806 ADJACENT_SCREEN_DROP_DURATION; 2807 mLauncher.getDragLayer().animateViewIntoPosition(d.dragView, cell, duration, 2808 onCompleteRunnable, this); 2809 } 2810 } else { 2811 d.deferDragViewCleanupPostAnimation = false; 2812 cell.setVisibility(VISIBLE); 2813 } 2814 parent.onDropChild(cell); 2815 } 2816 } 2817 2818 public void setFinalScrollForPageChange(int pageIndex) { 2819 CellLayout cl = (CellLayout) getChildAt(pageIndex); 2820 if (cl != null) { 2821 mSavedScrollX = getScrollX(); 2822 mSavedTranslationX = cl.getTranslationX(); 2823 mSavedRotationY = cl.getRotationY(); 2824 final int newX = getScrollForPage(pageIndex); 2825 setScrollX(newX); 2826 cl.setTranslationX(0f); 2827 cl.setRotationY(0f); 2828 } 2829 } 2830 2831 public void resetFinalScrollForPageChange(int pageIndex) { 2832 if (pageIndex >= 0) { 2833 CellLayout cl = (CellLayout) getChildAt(pageIndex); 2834 setScrollX(mSavedScrollX); 2835 cl.setTranslationX(mSavedTranslationX); 2836 cl.setRotationY(mSavedRotationY); 2837 } 2838 } 2839 2840 public void getViewLocationRelativeToSelf(View v, int[] location) { 2841 getLocationInWindow(location); 2842 int x = location[0]; 2843 int y = location[1]; 2844 2845 v.getLocationInWindow(location); 2846 int vX = location[0]; 2847 int vY = location[1]; 2848 2849 location[0] = vX - x; 2850 location[1] = vY - y; 2851 } 2852 2853 public void onDragEnter(DragObject d) { 2854 mDragEnforcer.onDragEnter(); 2855 mCreateUserFolderOnDrop = false; 2856 mAddToExistingFolderOnDrop = false; 2857 2858 mDropToLayout = null; 2859 CellLayout layout = getCurrentDropLayout(); 2860 setCurrentDropLayout(layout); 2861 setCurrentDragOverlappingLayout(layout); 2862 2863 if (!workspaceInModalState()) { 2864 mLauncher.getDragLayer().showPageHints(); 2865 } 2866 } 2867 2868 /** Return a rect that has the cellWidth/cellHeight (left, top), and 2869 * widthGap/heightGap (right, bottom) */ 2870 static Rect getCellLayoutMetrics(Launcher launcher, int orientation) { 2871 LauncherAppState app = LauncherAppState.getInstance(); 2872 DeviceProfile grid = app.getDynamicGrid().getDeviceProfile(); 2873 2874 Display display = launcher.getWindowManager().getDefaultDisplay(); 2875 Point smallestSize = new Point(); 2876 Point largestSize = new Point(); 2877 display.getCurrentSizeRange(smallestSize, largestSize); 2878 int countX = (int) grid.numColumns; 2879 int countY = (int) grid.numRows; 2880 if (orientation == CellLayout.LANDSCAPE) { 2881 if (mLandscapeCellLayoutMetrics == null) { 2882 Rect padding = grid.getWorkspacePadding(CellLayout.LANDSCAPE); 2883 int width = largestSize.x - padding.left - padding.right; 2884 int height = smallestSize.y - padding.top - padding.bottom; 2885 mLandscapeCellLayoutMetrics = new Rect(); 2886 mLandscapeCellLayoutMetrics.set( 2887 grid.calculateCellWidth(width, countX), 2888 grid.calculateCellHeight(height, countY), 0, 0); 2889 } 2890 return mLandscapeCellLayoutMetrics; 2891 } else if (orientation == CellLayout.PORTRAIT) { 2892 if (mPortraitCellLayoutMetrics == null) { 2893 Rect padding = grid.getWorkspacePadding(CellLayout.PORTRAIT); 2894 int width = smallestSize.x - padding.left - padding.right; 2895 int height = largestSize.y - padding.top - padding.bottom; 2896 mPortraitCellLayoutMetrics = new Rect(); 2897 mPortraitCellLayoutMetrics.set( 2898 grid.calculateCellWidth(width, countX), 2899 grid.calculateCellHeight(height, countY), 0, 0); 2900 } 2901 return mPortraitCellLayoutMetrics; 2902 } 2903 return null; 2904 } 2905 2906 public void onDragExit(DragObject d) { 2907 mDragEnforcer.onDragExit(); 2908 2909 // Here we store the final page that will be dropped to, if the workspace in fact 2910 // receives the drop 2911 if (mInScrollArea) { 2912 if (isPageMoving()) { 2913 // If the user drops while the page is scrolling, we should use that page as the 2914 // destination instead of the page that is being hovered over. 2915 mDropToLayout = (CellLayout) getPageAt(getNextPage()); 2916 } else { 2917 mDropToLayout = mDragOverlappingLayout; 2918 } 2919 } else { 2920 mDropToLayout = mDragTargetLayout; 2921 } 2922 2923 if (mDragMode == DRAG_MODE_CREATE_FOLDER) { 2924 mCreateUserFolderOnDrop = true; 2925 } else if (mDragMode == DRAG_MODE_ADD_TO_FOLDER) { 2926 mAddToExistingFolderOnDrop = true; 2927 } 2928 2929 // Reset the scroll area and previous drag target 2930 onResetScrollArea(); 2931 setCurrentDropLayout(null); 2932 setCurrentDragOverlappingLayout(null); 2933 2934 mSpringLoadedDragController.cancel(); 2935 2936 if (!mIsPageMoving) { 2937 hideOutlines(); 2938 } 2939 mLauncher.getDragLayer().hidePageHints(); 2940 } 2941 2942 void setCurrentDropLayout(CellLayout layout) { 2943 if (mDragTargetLayout != null) { 2944 mDragTargetLayout.revertTempState(); 2945 mDragTargetLayout.onDragExit(); 2946 } 2947 mDragTargetLayout = layout; 2948 if (mDragTargetLayout != null) { 2949 mDragTargetLayout.onDragEnter(); 2950 } 2951 cleanupReorder(true); 2952 cleanupFolderCreation(); 2953 setCurrentDropOverCell(-1, -1); 2954 } 2955 2956 void setCurrentDragOverlappingLayout(CellLayout layout) { 2957 if (mDragOverlappingLayout != null) { 2958 mDragOverlappingLayout.setIsDragOverlapping(false); 2959 } 2960 mDragOverlappingLayout = layout; 2961 if (mDragOverlappingLayout != null) { 2962 mDragOverlappingLayout.setIsDragOverlapping(true); 2963 } 2964 invalidate(); 2965 } 2966 2967 void setCurrentDropOverCell(int x, int y) { 2968 if (x != mDragOverX || y != mDragOverY) { 2969 mDragOverX = x; 2970 mDragOverY = y; 2971 setDragMode(DRAG_MODE_NONE); 2972 } 2973 } 2974 2975 void setDragMode(int dragMode) { 2976 if (dragMode != mDragMode) { 2977 if (dragMode == DRAG_MODE_NONE) { 2978 cleanupAddToFolder(); 2979 // We don't want to cancel the re-order alarm every time the target cell changes 2980 // as this feels to slow / unresponsive. 2981 cleanupReorder(false); 2982 cleanupFolderCreation(); 2983 } else if (dragMode == DRAG_MODE_ADD_TO_FOLDER) { 2984 cleanupReorder(true); 2985 cleanupFolderCreation(); 2986 } else if (dragMode == DRAG_MODE_CREATE_FOLDER) { 2987 cleanupAddToFolder(); 2988 cleanupReorder(true); 2989 } else if (dragMode == DRAG_MODE_REORDER) { 2990 cleanupAddToFolder(); 2991 cleanupFolderCreation(); 2992 } 2993 mDragMode = dragMode; 2994 } 2995 } 2996 2997 private void cleanupFolderCreation() { 2998 if (mDragFolderRingAnimator != null) { 2999 mDragFolderRingAnimator.animateToNaturalState(); 3000 mDragFolderRingAnimator = null; 3001 } 3002 mFolderCreationAlarm.setOnAlarmListener(null); 3003 mFolderCreationAlarm.cancelAlarm(); 3004 } 3005 3006 private void cleanupAddToFolder() { 3007 if (mDragOverFolderIcon != null) { 3008 mDragOverFolderIcon.onDragExit(null); 3009 mDragOverFolderIcon = null; 3010 } 3011 } 3012 3013 private void cleanupReorder(boolean cancelAlarm) { 3014 // Any pending reorders are canceled 3015 if (cancelAlarm) { 3016 mReorderAlarm.cancelAlarm(); 3017 } 3018 mLastReorderX = -1; 3019 mLastReorderY = -1; 3020 } 3021 3022 /* 3023 * 3024 * Convert the 2D coordinate xy from the parent View's coordinate space to this CellLayout's 3025 * coordinate space. The argument xy is modified with the return result. 3026 * 3027 * if cachedInverseMatrix is not null, this method will just use that matrix instead of 3028 * computing it itself; we use this to avoid redundant matrix inversions in 3029 * findMatchingPageForDragOver 3030 * 3031 */ 3032 void mapPointFromSelfToChild(View v, float[] xy, Matrix cachedInverseMatrix) { 3033 xy[0] = xy[0] - v.getLeft(); 3034 xy[1] = xy[1] - v.getTop(); 3035 } 3036 3037 boolean isPointInSelfOverHotseat(int x, int y, Rect r) { 3038 if (r == null) { 3039 r = new Rect(); 3040 } 3041 mTempPt[0] = x; 3042 mTempPt[1] = y; 3043 mLauncher.getDragLayer().getDescendantCoordRelativeToSelf(this, mTempPt, true); 3044 3045 LauncherAppState app = LauncherAppState.getInstance(); 3046 DeviceProfile grid = app.getDynamicGrid().getDeviceProfile(); 3047 r = grid.getHotseatRect(); 3048 if (r.contains(mTempPt[0], mTempPt[1])) { 3049 return true; 3050 } 3051 return false; 3052 } 3053 3054 void mapPointFromSelfToHotseatLayout(Hotseat hotseat, float[] xy) { 3055 mTempPt[0] = (int) xy[0]; 3056 mTempPt[1] = (int) xy[1]; 3057 mLauncher.getDragLayer().getDescendantCoordRelativeToSelf(this, mTempPt, true); 3058 mLauncher.getDragLayer().mapCoordInSelfToDescendent(hotseat.getLayout(), mTempPt); 3059 3060 xy[0] = mTempPt[0]; 3061 xy[1] = mTempPt[1]; 3062 } 3063 3064 /* 3065 * 3066 * Convert the 2D coordinate xy from this CellLayout's coordinate space to 3067 * the parent View's coordinate space. The argument xy is modified with the return result. 3068 * 3069 */ 3070 void mapPointFromChildToSelf(View v, float[] xy) { 3071 xy[0] += v.getLeft(); 3072 xy[1] += v.getTop(); 3073 } 3074 3075 static private float squaredDistance(float[] point1, float[] point2) { 3076 float distanceX = point1[0] - point2[0]; 3077 float distanceY = point2[1] - point2[1]; 3078 return distanceX * distanceX + distanceY * distanceY; 3079 } 3080 3081 /* 3082 * 3083 * This method returns the CellLayout that is currently being dragged to. In order to drag 3084 * to a CellLayout, either the touch point must be directly over the CellLayout, or as a second 3085 * strategy, we see if the dragView is overlapping any CellLayout and choose the closest one 3086 * 3087 * Return null if no CellLayout is currently being dragged over 3088 * 3089 */ 3090 private CellLayout findMatchingPageForDragOver( 3091 DragView dragView, float originX, float originY, boolean exact) { 3092 // We loop through all the screens (ie CellLayouts) and see which ones overlap 3093 // with the item being dragged and then choose the one that's closest to the touch point 3094 final int screenCount = getChildCount(); 3095 CellLayout bestMatchingScreen = null; 3096 float smallestDistSoFar = Float.MAX_VALUE; 3097 3098 for (int i = 0; i < screenCount; i++) { 3099 // The custom content screen is not a valid drag over option 3100 if (mScreenOrder.get(i) == CUSTOM_CONTENT_SCREEN_ID) { 3101 continue; 3102 } 3103 3104 CellLayout cl = (CellLayout) getChildAt(i); 3105 3106 final float[] touchXy = {originX, originY}; 3107 // Transform the touch coordinates to the CellLayout's local coordinates 3108 // If the touch point is within the bounds of the cell layout, we can return immediately 3109 cl.getMatrix().invert(mTempInverseMatrix); 3110 mapPointFromSelfToChild(cl, touchXy, mTempInverseMatrix); 3111 3112 if (touchXy[0] >= 0 && touchXy[0] <= cl.getWidth() && 3113 touchXy[1] >= 0 && touchXy[1] <= cl.getHeight()) { 3114 return cl; 3115 } 3116 3117 if (!exact) { 3118 // Get the center of the cell layout in screen coordinates 3119 final float[] cellLayoutCenter = mTempCellLayoutCenterCoordinates; 3120 cellLayoutCenter[0] = cl.getWidth()/2; 3121 cellLayoutCenter[1] = cl.getHeight()/2; 3122 mapPointFromChildToSelf(cl, cellLayoutCenter); 3123 3124 touchXy[0] = originX; 3125 touchXy[1] = originY; 3126 3127 // Calculate the distance between the center of the CellLayout 3128 // and the touch point 3129 float dist = squaredDistance(touchXy, cellLayoutCenter); 3130 3131 if (dist < smallestDistSoFar) { 3132 smallestDistSoFar = dist; 3133 bestMatchingScreen = cl; 3134 } 3135 } 3136 } 3137 return bestMatchingScreen; 3138 } 3139 3140 private boolean isDragWidget(DragObject d) { 3141 return (d.dragInfo instanceof LauncherAppWidgetInfo || 3142 d.dragInfo instanceof PendingAddWidgetInfo); 3143 } 3144 private boolean isExternalDragWidget(DragObject d) { 3145 return d.dragSource != this && isDragWidget(d); 3146 } 3147 3148 public void onDragOver(DragObject d) { 3149 // Skip drag over events while we are dragging over side pages 3150 if (mInScrollArea || !transitionStateShouldAllowDrop()) return; 3151 3152 Rect r = new Rect(); 3153 CellLayout layout = null; 3154 ItemInfo item = (ItemInfo) d.dragInfo; 3155 if (item == null) { 3156 if (LauncherAppState.isDogfoodBuild()) { 3157 throw new NullPointerException("DragObject has null info"); 3158 } 3159 return; 3160 } 3161 3162 // Ensure that we have proper spans for the item that we are dropping 3163 if (item.spanX < 0 || item.spanY < 0) throw new RuntimeException("Improper spans found"); 3164 mDragViewVisualCenter = d.getVisualCenter(mDragViewVisualCenter); 3165 3166 final View child = (mDragInfo == null) ? null : mDragInfo.cell; 3167 // Identify whether we have dragged over a side page 3168 if (workspaceInModalState()) { 3169 if (mLauncher.getHotseat() != null && !isExternalDragWidget(d)) { 3170 if (isPointInSelfOverHotseat(d.x, d.y, r)) { 3171 layout = mLauncher.getHotseat().getLayout(); 3172 } 3173 } 3174 if (layout == null) { 3175 layout = findMatchingPageForDragOver(d.dragView, d.x, d.y, false); 3176 } 3177 if (layout != mDragTargetLayout) { 3178 setCurrentDropLayout(layout); 3179 setCurrentDragOverlappingLayout(layout); 3180 3181 boolean isInSpringLoadedMode = (mState == State.SPRING_LOADED); 3182 if (isInSpringLoadedMode) { 3183 if (mLauncher.isHotseatLayout(layout)) { 3184 mSpringLoadedDragController.cancel(); 3185 } else { 3186 mSpringLoadedDragController.setAlarm(mDragTargetLayout); 3187 } 3188 } 3189 } 3190 } else { 3191 // Test to see if we are over the hotseat otherwise just use the current page 3192 if (mLauncher.getHotseat() != null && !isDragWidget(d)) { 3193 if (isPointInSelfOverHotseat(d.x, d.y, r)) { 3194 layout = mLauncher.getHotseat().getLayout(); 3195 } 3196 } 3197 if (layout == null) { 3198 layout = getCurrentDropLayout(); 3199 } 3200 if (layout != mDragTargetLayout) { 3201 setCurrentDropLayout(layout); 3202 setCurrentDragOverlappingLayout(layout); 3203 } 3204 } 3205 3206 // Handle the drag over 3207 if (mDragTargetLayout != null) { 3208 // We want the point to be mapped to the dragTarget. 3209 if (mLauncher.isHotseatLayout(mDragTargetLayout)) { 3210 mapPointFromSelfToHotseatLayout(mLauncher.getHotseat(), mDragViewVisualCenter); 3211 } else { 3212 mapPointFromSelfToChild(mDragTargetLayout, mDragViewVisualCenter, null); 3213 } 3214 3215 ItemInfo info = (ItemInfo) d.dragInfo; 3216 3217 int minSpanX = item.spanX; 3218 int minSpanY = item.spanY; 3219 if (item.minSpanX > 0 && item.minSpanY > 0) { 3220 minSpanX = item.minSpanX; 3221 minSpanY = item.minSpanY; 3222 } 3223 3224 mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], 3225 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, 3226 mDragTargetLayout, mTargetCell); 3227 int reorderX = mTargetCell[0]; 3228 int reorderY = mTargetCell[1]; 3229 3230 setCurrentDropOverCell(mTargetCell[0], mTargetCell[1]); 3231 3232 float targetCellDistance = mDragTargetLayout.getDistanceFromCell( 3233 mDragViewVisualCenter[0], mDragViewVisualCenter[1], mTargetCell); 3234 3235 final View dragOverView = mDragTargetLayout.getChildAt(mTargetCell[0], 3236 mTargetCell[1]); 3237 3238 manageFolderFeedback(info, mDragTargetLayout, mTargetCell, 3239 targetCellDistance, dragOverView, d.accessibleDrag); 3240 3241 boolean nearestDropOccupied = mDragTargetLayout.isNearestDropLocationOccupied((int) 3242 mDragViewVisualCenter[0], (int) mDragViewVisualCenter[1], item.spanX, 3243 item.spanY, child, mTargetCell); 3244 3245 if (!nearestDropOccupied) { 3246 mDragTargetLayout.visualizeDropLocation(child, mDragOutline, 3247 (int) mDragViewVisualCenter[0], (int) mDragViewVisualCenter[1], 3248 mTargetCell[0], mTargetCell[1], item.spanX, item.spanY, false, 3249 d.dragView.getDragVisualizeOffset(), d.dragView.getDragRegion()); 3250 } else if ((mDragMode == DRAG_MODE_NONE || mDragMode == DRAG_MODE_REORDER) 3251 && !mReorderAlarm.alarmPending() && (mLastReorderX != reorderX || 3252 mLastReorderY != reorderY)) { 3253 3254 int[] resultSpan = new int[2]; 3255 mDragTargetLayout.performReorder((int) mDragViewVisualCenter[0], 3256 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, item.spanX, item.spanY, 3257 child, mTargetCell, resultSpan, CellLayout.MODE_SHOW_REORDER_HINT); 3258 3259 // Otherwise, if we aren't adding to or creating a folder and there's no pending 3260 // reorder, then we schedule a reorder 3261 ReorderAlarmListener listener = new ReorderAlarmListener(mDragViewVisualCenter, 3262 minSpanX, minSpanY, item.spanX, item.spanY, d.dragView, child); 3263 mReorderAlarm.setOnAlarmListener(listener); 3264 mReorderAlarm.setAlarm(REORDER_TIMEOUT); 3265 } 3266 3267 if (mDragMode == DRAG_MODE_CREATE_FOLDER || mDragMode == DRAG_MODE_ADD_TO_FOLDER || 3268 !nearestDropOccupied) { 3269 if (mDragTargetLayout != null) { 3270 mDragTargetLayout.revertTempState(); 3271 } 3272 } 3273 } 3274 } 3275 3276 private void manageFolderFeedback(ItemInfo info, CellLayout targetLayout, 3277 int[] targetCell, float distance, View dragOverView, boolean accessibleDrag) { 3278 boolean userFolderPending = willCreateUserFolder(info, targetLayout, targetCell, distance, 3279 false); 3280 if (mDragMode == DRAG_MODE_NONE && userFolderPending && 3281 !mFolderCreationAlarm.alarmPending()) { 3282 3283 FolderCreationAlarmListener listener = new 3284 FolderCreationAlarmListener(targetLayout, targetCell[0], targetCell[1]); 3285 3286 if (!accessibleDrag) { 3287 mFolderCreationAlarm.setOnAlarmListener(listener); 3288 mFolderCreationAlarm.setAlarm(FOLDER_CREATION_TIMEOUT); 3289 } else { 3290 listener.onAlarm(mFolderCreationAlarm); 3291 } 3292 return; 3293 } 3294 3295 boolean willAddToFolder = 3296 willAddToExistingUserFolder(info, targetLayout, targetCell, distance); 3297 3298 if (willAddToFolder && mDragMode == DRAG_MODE_NONE) { 3299 mDragOverFolderIcon = ((FolderIcon) dragOverView); 3300 mDragOverFolderIcon.onDragEnter(info); 3301 if (targetLayout != null) { 3302 targetLayout.clearDragOutlines(); 3303 } 3304 setDragMode(DRAG_MODE_ADD_TO_FOLDER); 3305 return; 3306 } 3307 3308 if (mDragMode == DRAG_MODE_ADD_TO_FOLDER && !willAddToFolder) { 3309 setDragMode(DRAG_MODE_NONE); 3310 } 3311 if (mDragMode == DRAG_MODE_CREATE_FOLDER && !userFolderPending) { 3312 setDragMode(DRAG_MODE_NONE); 3313 } 3314 3315 return; 3316 } 3317 3318 class FolderCreationAlarmListener implements OnAlarmListener { 3319 CellLayout layout; 3320 int cellX; 3321 int cellY; 3322 3323 public FolderCreationAlarmListener(CellLayout layout, int cellX, int cellY) { 3324 this.layout = layout; 3325 this.cellX = cellX; 3326 this.cellY = cellY; 3327 } 3328 3329 public void onAlarm(Alarm alarm) { 3330 if (mDragFolderRingAnimator != null) { 3331 // This shouldn't happen ever, but just in case, make sure we clean up the mess. 3332 mDragFolderRingAnimator.animateToNaturalState(); 3333 } 3334 mDragFolderRingAnimator = new FolderRingAnimator(mLauncher, null); 3335 mDragFolderRingAnimator.setCell(cellX, cellY); 3336 mDragFolderRingAnimator.setCellLayout(layout); 3337 mDragFolderRingAnimator.animateToAcceptState(); 3338 layout.showFolderAccept(mDragFolderRingAnimator); 3339 layout.clearDragOutlines(); 3340 setDragMode(DRAG_MODE_CREATE_FOLDER); 3341 } 3342 } 3343 3344 class ReorderAlarmListener implements OnAlarmListener { 3345 float[] dragViewCenter; 3346 int minSpanX, minSpanY, spanX, spanY; 3347 DragView dragView; 3348 View child; 3349 3350 public ReorderAlarmListener(float[] dragViewCenter, int minSpanX, int minSpanY, int spanX, 3351 int spanY, DragView dragView, View child) { 3352 this.dragViewCenter = dragViewCenter; 3353 this.minSpanX = minSpanX; 3354 this.minSpanY = minSpanY; 3355 this.spanX = spanX; 3356 this.spanY = spanY; 3357 this.child = child; 3358 this.dragView = dragView; 3359 } 3360 3361 public void onAlarm(Alarm alarm) { 3362 int[] resultSpan = new int[2]; 3363 mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], 3364 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, mDragTargetLayout, 3365 mTargetCell); 3366 mLastReorderX = mTargetCell[0]; 3367 mLastReorderY = mTargetCell[1]; 3368 3369 mTargetCell = mDragTargetLayout.performReorder((int) mDragViewVisualCenter[0], 3370 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, spanX, spanY, 3371 child, mTargetCell, resultSpan, CellLayout.MODE_DRAG_OVER); 3372 3373 if (mTargetCell[0] < 0 || mTargetCell[1] < 0) { 3374 mDragTargetLayout.revertTempState(); 3375 } else { 3376 setDragMode(DRAG_MODE_REORDER); 3377 } 3378 3379 boolean resize = resultSpan[0] != spanX || resultSpan[1] != spanY; 3380 mDragTargetLayout.visualizeDropLocation(child, mDragOutline, 3381 (int) mDragViewVisualCenter[0], (int) mDragViewVisualCenter[1], 3382 mTargetCell[0], mTargetCell[1], resultSpan[0], resultSpan[1], resize, 3383 dragView.getDragVisualizeOffset(), dragView.getDragRegion()); 3384 } 3385 } 3386 3387 @Override 3388 public void getHitRectRelativeToDragLayer(Rect outRect) { 3389 // We want the workspace to have the whole area of the display (it will find the correct 3390 // cell layout to drop to in the existing drag/drop logic. 3391 mLauncher.getDragLayer().getDescendantRectRelativeToSelf(this, outRect); 3392 } 3393 3394 /** 3395 * Add the item specified by dragInfo to the given layout. 3396 * @return true if successful 3397 */ 3398 public boolean addExternalItemToScreen(ItemInfo dragInfo, CellLayout layout) { 3399 if (layout.findCellForSpan(mTempEstimate, dragInfo.spanX, dragInfo.spanY)) { 3400 onDropExternal(dragInfo.dropPos, (ItemInfo) dragInfo, (CellLayout) layout, false); 3401 return true; 3402 } 3403 mLauncher.showOutOfSpaceMessage(mLauncher.isHotseatLayout(layout)); 3404 return false; 3405 } 3406 3407 private void onDropExternal(int[] touchXY, Object dragInfo, 3408 CellLayout cellLayout, boolean insertAtFirst) { 3409 onDropExternal(touchXY, dragInfo, cellLayout, insertAtFirst, null); 3410 } 3411 3412 /** 3413 * Drop an item that didn't originate on one of the workspace screens. 3414 * It may have come from Launcher (e.g. from all apps or customize), or it may have 3415 * come from another app altogether. 3416 * 3417 * NOTE: This can also be called when we are outside of a drag event, when we want 3418 * to add an item to one of the workspace screens. 3419 */ 3420 private void onDropExternal(final int[] touchXY, final Object dragInfo, 3421 final CellLayout cellLayout, boolean insertAtFirst, DragObject d) { 3422 final Runnable exitSpringLoadedRunnable = new Runnable() { 3423 @Override 3424 public void run() { 3425 mLauncher.exitSpringLoadedDragModeDelayed(true, 3426 Launcher.EXIT_SPRINGLOADED_MODE_SHORT_TIMEOUT, null); 3427 } 3428 }; 3429 3430 ItemInfo info = (ItemInfo) dragInfo; 3431 int spanX = info.spanX; 3432 int spanY = info.spanY; 3433 if (mDragInfo != null) { 3434 spanX = mDragInfo.spanX; 3435 spanY = mDragInfo.spanY; 3436 } 3437 3438 final long container = mLauncher.isHotseatLayout(cellLayout) ? 3439 LauncherSettings.Favorites.CONTAINER_HOTSEAT : 3440 LauncherSettings.Favorites.CONTAINER_DESKTOP; 3441 final long screenId = getIdForScreen(cellLayout); 3442 if (!mLauncher.isHotseatLayout(cellLayout) 3443 && screenId != getScreenIdForPageIndex(mCurrentPage) 3444 && mState != State.SPRING_LOADED) { 3445 snapToScreenId(screenId, null); 3446 } 3447 3448 if (info instanceof PendingAddItemInfo) { 3449 final PendingAddItemInfo pendingInfo = (PendingAddItemInfo) dragInfo; 3450 3451 boolean findNearestVacantCell = true; 3452 if (pendingInfo.itemType == LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT) { 3453 mTargetCell = findNearestArea((int) touchXY[0], (int) touchXY[1], spanX, spanY, 3454 cellLayout, mTargetCell); 3455 float distance = cellLayout.getDistanceFromCell(mDragViewVisualCenter[0], 3456 mDragViewVisualCenter[1], mTargetCell); 3457 if (willCreateUserFolder((ItemInfo) d.dragInfo, cellLayout, mTargetCell, 3458 distance, true) || willAddToExistingUserFolder((ItemInfo) d.dragInfo, 3459 cellLayout, mTargetCell, distance)) { 3460 findNearestVacantCell = false; 3461 } 3462 } 3463 3464 final ItemInfo item = (ItemInfo) d.dragInfo; 3465 boolean updateWidgetSize = false; 3466 if (findNearestVacantCell) { 3467 int minSpanX = item.spanX; 3468 int minSpanY = item.spanY; 3469 if (item.minSpanX > 0 && item.minSpanY > 0) { 3470 minSpanX = item.minSpanX; 3471 minSpanY = item.minSpanY; 3472 } 3473 int[] resultSpan = new int[2]; 3474 mTargetCell = cellLayout.performReorder((int) mDragViewVisualCenter[0], 3475 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, info.spanX, info.spanY, 3476 null, mTargetCell, resultSpan, CellLayout.MODE_ON_DROP_EXTERNAL); 3477 3478 if (resultSpan[0] != item.spanX || resultSpan[1] != item.spanY) { 3479 updateWidgetSize = true; 3480 } 3481 item.spanX = resultSpan[0]; 3482 item.spanY = resultSpan[1]; 3483 } 3484 3485 Runnable onAnimationCompleteRunnable = new Runnable() { 3486 @Override 3487 public void run() { 3488 // Normally removeExtraEmptyScreen is called in Workspace#onDragEnd, but when 3489 // adding an item that may not be dropped right away (due to a config activity) 3490 // we defer the removal until the activity returns. 3491 deferRemoveExtraEmptyScreen(); 3492 3493 // When dragging and dropping from customization tray, we deal with creating 3494 // widgets/shortcuts/folders in a slightly different way 3495 mLauncher.addPendingItem(pendingInfo, container, screenId, mTargetCell, 3496 item.spanX, item.spanY); 3497 } 3498 }; 3499 boolean isWidget = pendingInfo.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET 3500 || pendingInfo.itemType == LauncherSettings.Favorites.ITEM_TYPE_CUSTOM_APPWIDGET; 3501 3502 View finalView = isWidget ? ((PendingAddWidgetInfo) pendingInfo).boundWidget : null; 3503 3504 if (finalView instanceof AppWidgetHostView && updateWidgetSize) { 3505 AppWidgetHostView awhv = (AppWidgetHostView) finalView; 3506 AppWidgetResizeFrame.updateWidgetSizeRanges(awhv, mLauncher, item.spanX, 3507 item.spanY); 3508 } 3509 3510 int animationStyle = ANIMATE_INTO_POSITION_AND_DISAPPEAR; 3511 if (isWidget && ((PendingAddWidgetInfo) pendingInfo).info != null && 3512 ((PendingAddWidgetInfo) pendingInfo).info.configure != null) { 3513 animationStyle = ANIMATE_INTO_POSITION_AND_REMAIN; 3514 } 3515 animateWidgetDrop(info, cellLayout, d.dragView, onAnimationCompleteRunnable, 3516 animationStyle, finalView, true); 3517 } else { 3518 // This is for other drag/drop cases, like dragging from All Apps 3519 View view = null; 3520 3521 switch (info.itemType) { 3522 case LauncherSettings.Favorites.ITEM_TYPE_APPLICATION: 3523 case LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT: 3524 if (info.container == NO_ID && info instanceof AppInfo) { 3525 // Came from all apps -- make a copy 3526 info = ((AppInfo) info).makeShortcut(); 3527 } 3528 view = mLauncher.createShortcut(R.layout.application, cellLayout, 3529 (ShortcutInfo) info); 3530 break; 3531 case LauncherSettings.Favorites.ITEM_TYPE_FOLDER: 3532 view = FolderIcon.fromXml(R.layout.folder_icon, mLauncher, cellLayout, 3533 (FolderInfo) info, mIconCache); 3534 break; 3535 default: 3536 throw new IllegalStateException("Unknown item type: " + info.itemType); 3537 } 3538 3539 // First we find the cell nearest to point at which the item is 3540 // dropped, without any consideration to whether there is an item there. 3541 if (touchXY != null) { 3542 mTargetCell = findNearestArea((int) touchXY[0], (int) touchXY[1], spanX, spanY, 3543 cellLayout, mTargetCell); 3544 float distance = cellLayout.getDistanceFromCell(mDragViewVisualCenter[0], 3545 mDragViewVisualCenter[1], mTargetCell); 3546 d.postAnimationRunnable = exitSpringLoadedRunnable; 3547 if (createUserFolderIfNecessary(view, container, cellLayout, mTargetCell, distance, 3548 true, d.dragView, d.postAnimationRunnable)) { 3549 return; 3550 } 3551 if (addToExistingFolderIfNecessary(view, cellLayout, mTargetCell, distance, d, 3552 true)) { 3553 return; 3554 } 3555 } 3556 3557 if (touchXY != null) { 3558 // when dragging and dropping, just find the closest free spot 3559 mTargetCell = cellLayout.performReorder((int) mDragViewVisualCenter[0], 3560 (int) mDragViewVisualCenter[1], 1, 1, 1, 1, 3561 null, mTargetCell, null, CellLayout.MODE_ON_DROP_EXTERNAL); 3562 } else { 3563 cellLayout.findCellForSpan(mTargetCell, 1, 1); 3564 } 3565 // Add the item to DB before adding to screen ensures that the container and other 3566 // values of the info is properly updated. 3567 LauncherModel.addOrMoveItemInDatabase(mLauncher, info, container, screenId, 3568 mTargetCell[0], mTargetCell[1]); 3569 3570 addInScreen(view, container, screenId, mTargetCell[0], mTargetCell[1], info.spanX, 3571 info.spanY, insertAtFirst); 3572 cellLayout.onDropChild(view); 3573 cellLayout.getShortcutsAndWidgets().measureChild(view); 3574 3575 if (d.dragView != null) { 3576 // We wrap the animation call in the temporary set and reset of the current 3577 // cellLayout to its final transform -- this means we animate the drag view to 3578 // the correct final location. 3579 setFinalTransitionTransform(cellLayout); 3580 mLauncher.getDragLayer().animateViewIntoPosition(d.dragView, view, 3581 exitSpringLoadedRunnable, this); 3582 resetTransitionTransform(cellLayout); 3583 } 3584 } 3585 } 3586 3587 public Bitmap createWidgetBitmap(ItemInfo widgetInfo, View layout) { 3588 int[] unScaledSize = mLauncher.getWorkspace().estimateItemSize(widgetInfo, false); 3589 int visibility = layout.getVisibility(); 3590 layout.setVisibility(VISIBLE); 3591 3592 int width = MeasureSpec.makeMeasureSpec(unScaledSize[0], MeasureSpec.EXACTLY); 3593 int height = MeasureSpec.makeMeasureSpec(unScaledSize[1], MeasureSpec.EXACTLY); 3594 Bitmap b = Bitmap.createBitmap(unScaledSize[0], unScaledSize[1], 3595 Bitmap.Config.ARGB_8888); 3596 mCanvas.setBitmap(b); 3597 3598 layout.measure(width, height); 3599 layout.layout(0, 0, unScaledSize[0], unScaledSize[1]); 3600 layout.draw(mCanvas); 3601 mCanvas.setBitmap(null); 3602 layout.setVisibility(visibility); 3603 return b; 3604 } 3605 3606 private void getFinalPositionForDropAnimation(int[] loc, float[] scaleXY, 3607 DragView dragView, CellLayout layout, ItemInfo info, int[] targetCell, 3608 boolean external, boolean scale) { 3609 // Now we animate the dragView, (ie. the widget or shortcut preview) into its final 3610 // location and size on the home screen. 3611 int spanX = info.spanX; 3612 int spanY = info.spanY; 3613 3614 Rect r = estimateItemPosition(layout, info, targetCell[0], targetCell[1], spanX, spanY); 3615 loc[0] = r.left; 3616 loc[1] = r.top; 3617 3618 setFinalTransitionTransform(layout); 3619 float cellLayoutScale = 3620 mLauncher.getDragLayer().getDescendantCoordRelativeToSelf(layout, loc, true); 3621 resetTransitionTransform(layout); 3622 3623 float dragViewScaleX; 3624 float dragViewScaleY; 3625 if (scale) { 3626 dragViewScaleX = (1.0f * r.width()) / dragView.getMeasuredWidth(); 3627 dragViewScaleY = (1.0f * r.height()) / dragView.getMeasuredHeight(); 3628 } else { 3629 dragViewScaleX = 1f; 3630 dragViewScaleY = 1f; 3631 } 3632 3633 // The animation will scale the dragView about its center, so we need to center about 3634 // the final location. 3635 loc[0] -= (dragView.getMeasuredWidth() - cellLayoutScale * r.width()) / 2; 3636 loc[1] -= (dragView.getMeasuredHeight() - cellLayoutScale * r.height()) / 2; 3637 3638 scaleXY[0] = dragViewScaleX * cellLayoutScale; 3639 scaleXY[1] = dragViewScaleY * cellLayoutScale; 3640 } 3641 3642 public void animateWidgetDrop(ItemInfo info, CellLayout cellLayout, DragView dragView, 3643 final Runnable onCompleteRunnable, int animationType, final View finalView, 3644 boolean external) { 3645 Rect from = new Rect(); 3646 mLauncher.getDragLayer().getViewRectRelativeToSelf(dragView, from); 3647 3648 int[] finalPos = new int[2]; 3649 float scaleXY[] = new float[2]; 3650 boolean scalePreview = !(info instanceof PendingAddShortcutInfo); 3651 getFinalPositionForDropAnimation(finalPos, scaleXY, dragView, cellLayout, info, mTargetCell, 3652 external, scalePreview); 3653 3654 Resources res = mLauncher.getResources(); 3655 final int duration = res.getInteger(R.integer.config_dropAnimMaxDuration) - 200; 3656 3657 // In the case where we've prebound the widget, we remove it from the DragLayer 3658 if (finalView instanceof AppWidgetHostView && external) { 3659 mLauncher.getDragLayer().removeView(finalView); 3660 } 3661 3662 boolean isWidget = info.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET || 3663 info.itemType == LauncherSettings.Favorites.ITEM_TYPE_CUSTOM_APPWIDGET; 3664 if ((animationType == ANIMATE_INTO_POSITION_AND_RESIZE || external) && finalView != null) { 3665 Bitmap crossFadeBitmap = createWidgetBitmap(info, finalView); 3666 dragView.setCrossFadeBitmap(crossFadeBitmap); 3667 dragView.crossFade((int) (duration * 0.8f)); 3668 } else if (isWidget && external) { 3669 scaleXY[0] = scaleXY[1] = Math.min(scaleXY[0], scaleXY[1]); 3670 } 3671 3672 DragLayer dragLayer = mLauncher.getDragLayer(); 3673 if (animationType == CANCEL_TWO_STAGE_WIDGET_DROP_ANIMATION) { 3674 mLauncher.getDragLayer().animateViewIntoPosition(dragView, finalPos, 0f, 0.1f, 0.1f, 3675 DragLayer.ANIMATION_END_DISAPPEAR, onCompleteRunnable, duration); 3676 } else { 3677 int endStyle; 3678 if (animationType == ANIMATE_INTO_POSITION_AND_REMAIN) { 3679 endStyle = DragLayer.ANIMATION_END_REMAIN_VISIBLE; 3680 } else { 3681 endStyle = DragLayer.ANIMATION_END_DISAPPEAR;; 3682 } 3683 3684 Runnable onComplete = new Runnable() { 3685 @Override 3686 public void run() { 3687 if (finalView != null) { 3688 finalView.setVisibility(VISIBLE); 3689 } 3690 if (onCompleteRunnable != null) { 3691 onCompleteRunnable.run(); 3692 } 3693 } 3694 }; 3695 dragLayer.animateViewIntoPosition(dragView, from.left, from.top, finalPos[0], 3696 finalPos[1], 1, 1, 1, scaleXY[0], scaleXY[1], onComplete, endStyle, 3697 duration, this); 3698 } 3699 } 3700 3701 public void setFinalTransitionTransform(CellLayout layout) { 3702 if (isSwitchingState()) { 3703 mCurrentScale = getScaleX(); 3704 setScaleX(mStateTransitionAnimation.getFinalScale()); 3705 setScaleY(mStateTransitionAnimation.getFinalScale()); 3706 } 3707 } 3708 public void resetTransitionTransform(CellLayout layout) { 3709 if (isSwitchingState()) { 3710 setScaleX(mCurrentScale); 3711 setScaleY(mCurrentScale); 3712 } 3713 } 3714 3715 /** 3716 * Return the current {@link CellLayout}, correctly picking the destination 3717 * screen while a scroll is in progress. 3718 */ 3719 public CellLayout getCurrentDropLayout() { 3720 return (CellLayout) getChildAt(getNextPage()); 3721 } 3722 3723 /** 3724 * Return the current CellInfo describing our current drag; this method exists 3725 * so that Launcher can sync this object with the correct info when the activity is created/ 3726 * destroyed 3727 * 3728 */ 3729 public CellLayout.CellInfo getDragInfo() { 3730 return mDragInfo; 3731 } 3732 3733 public int getCurrentPageOffsetFromCustomContent() { 3734 return getNextPage() - numCustomPages(); 3735 } 3736 3737 /** 3738 * Calculate the nearest cell where the given object would be dropped. 3739 * 3740 * pixelX and pixelY should be in the coordinate system of layout 3741 */ 3742 @Thunk int[] findNearestArea(int pixelX, int pixelY, 3743 int spanX, int spanY, CellLayout layout, int[] recycle) { 3744 return layout.findNearestArea( 3745 pixelX, pixelY, spanX, spanY, recycle); 3746 } 3747 3748 void setup(DragController dragController) { 3749 mSpringLoadedDragController = new SpringLoadedDragController(mLauncher); 3750 mDragController = dragController; 3751 3752 // hardware layers on children are enabled on startup, but should be disabled until 3753 // needed 3754 updateChildrenLayersEnabled(false); 3755 } 3756 3757 /** 3758 * Called at the end of a drag which originated on the workspace. 3759 */ 3760 public void onDropCompleted(final View target, final DragObject d, 3761 final boolean isFlingToDelete, final boolean success) { 3762 if (mDeferDropAfterUninstall) { 3763 mDeferredAction = new Runnable() { 3764 public void run() { 3765 onDropCompleted(target, d, isFlingToDelete, success); 3766 mDeferredAction = null; 3767 } 3768 }; 3769 return; 3770 } 3771 3772 boolean beingCalledAfterUninstall = mDeferredAction != null; 3773 3774 if (success && !(beingCalledAfterUninstall && !mUninstallSuccessful)) { 3775 if (target != this && mDragInfo != null) { 3776 removeWorkspaceItem(mDragInfo.cell); 3777 } 3778 } else if (mDragInfo != null) { 3779 final CellLayout cellLayout = mLauncher.getCellLayout( 3780 mDragInfo.container, mDragInfo.screenId); 3781 if (cellLayout != null) { 3782 cellLayout.onDropChild(mDragInfo.cell); 3783 } else if (LauncherAppState.isDogfoodBuild()) { 3784 throw new RuntimeException("Invalid state: cellLayout == null in " 3785 + "Workspace#onDropCompleted. Please file a bug. "); 3786 }; 3787 } 3788 if ((d.cancelled || (beingCalledAfterUninstall && !mUninstallSuccessful)) 3789 && mDragInfo.cell != null) { 3790 mDragInfo.cell.setVisibility(VISIBLE); 3791 } 3792 mDragOutline = null; 3793 mDragInfo = null; 3794 } 3795 3796 /** 3797 * For opposite operation. See {@link #addInScreen}. 3798 */ 3799 public void removeWorkspaceItem(View v) { 3800 CellLayout parentCell = getParentCellLayoutForView(v); 3801 if (parentCell != null) { 3802 parentCell.removeView(v); 3803 } else if (LauncherAppState.isDogfoodBuild()) { 3804 throw new NullPointerException("mDragInfo.cell has null parent"); 3805 } 3806 if (v instanceof DropTarget) { 3807 mDragController.removeDropTarget((DropTarget) v); 3808 } 3809 } 3810 3811 @Override 3812 public void deferCompleteDropAfterUninstallActivity() { 3813 mDeferDropAfterUninstall = true; 3814 } 3815 3816 /// maybe move this into a smaller part 3817 @Override 3818 public void onUninstallActivityReturned(boolean success) { 3819 mDeferDropAfterUninstall = false; 3820 mUninstallSuccessful = success; 3821 if (mDeferredAction != null) { 3822 mDeferredAction.run(); 3823 } 3824 } 3825 3826 void updateItemLocationsInDatabase(CellLayout cl) { 3827 int count = cl.getShortcutsAndWidgets().getChildCount(); 3828 3829 long screenId = getIdForScreen(cl); 3830 int container = Favorites.CONTAINER_DESKTOP; 3831 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 && info.requiresDbUpdate) { 3842 info.requiresDbUpdate = false; 3843 LauncherModel.modifyItemInDatabase(mLauncher, info, container, screenId, info.cellX, 3844 info.cellY, info.spanX, info.spanY); 3845 } 3846 } 3847 } 3848 3849 void saveWorkspaceToDb() { 3850 saveWorkspaceScreenToDb((CellLayout) mLauncher.getHotseat().getLayout()); 3851 int count = getChildCount(); 3852 for (int i = 0; i < count; i++) { 3853 CellLayout cl = (CellLayout) getChildAt(i); 3854 saveWorkspaceScreenToDb(cl); 3855 } 3856 } 3857 3858 void saveWorkspaceScreenToDb(CellLayout cl) { 3859 int count = cl.getShortcutsAndWidgets().getChildCount(); 3860 3861 long screenId = getIdForScreen(cl); 3862 int container = Favorites.CONTAINER_DESKTOP; 3863 3864 Hotseat hotseat = mLauncher.getHotseat(); 3865 if (mLauncher.isHotseatLayout(cl)) { 3866 screenId = -1; 3867 container = Favorites.CONTAINER_HOTSEAT; 3868 } 3869 3870 for (int i = 0; i < count; i++) { 3871 View v = cl.getShortcutsAndWidgets().getChildAt(i); 3872 ItemInfo info = (ItemInfo) v.getTag(); 3873 // Null check required as the AllApps button doesn't have an item info 3874 if (info != null) { 3875 int cellX = info.cellX; 3876 int cellY = info.cellY; 3877 if (container == Favorites.CONTAINER_HOTSEAT) { 3878 cellX = hotseat.getCellXFromOrder((int) info.screenId); 3879 cellY = hotseat.getCellYFromOrder((int) info.screenId); 3880 } 3881 LauncherModel.addItemToDatabase(mLauncher, info, container, screenId, cellX, cellY); 3882 } 3883 if (v instanceof FolderIcon) { 3884 FolderIcon fi = (FolderIcon) v; 3885 fi.getFolder().addItemLocationsInDatabase(); 3886 } 3887 } 3888 } 3889 3890 @Override 3891 public float getIntrinsicIconScaleFactor() { 3892 return 1f; 3893 } 3894 3895 @Override 3896 public boolean supportsFlingToDelete() { 3897 return true; 3898 } 3899 3900 @Override 3901 public boolean supportsAppInfoDropTarget() { 3902 return false; 3903 } 3904 3905 @Override 3906 public boolean supportsDeleteDropTarget() { 3907 return true; 3908 } 3909 3910 @Override 3911 public void onFlingToDelete(DragObject d, PointF vec) { 3912 // Do nothing 3913 } 3914 3915 @Override 3916 public void onFlingToDeleteCompleted() { 3917 // Do nothing 3918 } 3919 3920 public boolean isDropEnabled() { 3921 return true; 3922 } 3923 3924 @Override 3925 protected void dispatchRestoreInstanceState(SparseArray<Parcelable> container) { 3926 // We don't dispatch restoreInstanceState to our children using this code path. 3927 // Some pages will be restored immediately as their items are bound immediately, and 3928 // others we will need to wait until after their items are bound. 3929 mSavedStates = container; 3930 } 3931 3932 public void restoreInstanceStateForChild(int child) { 3933 if (mSavedStates != null) { 3934 mRestoredPages.add(child); 3935 CellLayout cl = (CellLayout) getChildAt(child); 3936 if (cl != null) { 3937 cl.restoreInstanceState(mSavedStates); 3938 } 3939 } 3940 } 3941 3942 public void restoreInstanceStateForRemainingPages() { 3943 int count = getChildCount(); 3944 for (int i = 0; i < count; i++) { 3945 if (!mRestoredPages.contains(i)) { 3946 restoreInstanceStateForChild(i); 3947 } 3948 } 3949 mRestoredPages.clear(); 3950 mSavedStates = null; 3951 } 3952 3953 @Override 3954 public void scrollLeft() { 3955 if (!workspaceInModalState() && !mIsSwitchingState) { 3956 super.scrollLeft(); 3957 } 3958 Folder openFolder = getOpenFolder(); 3959 if (openFolder != null) { 3960 openFolder.completeDragExit(); 3961 } 3962 } 3963 3964 @Override 3965 public void scrollRight() { 3966 if (!workspaceInModalState() && !mIsSwitchingState) { 3967 super.scrollRight(); 3968 } 3969 Folder openFolder = getOpenFolder(); 3970 if (openFolder != null) { 3971 openFolder.completeDragExit(); 3972 } 3973 } 3974 3975 @Override 3976 public boolean onEnterScrollArea(int x, int y, int direction) { 3977 // Ignore the scroll area if we are dragging over the hot seat 3978 boolean isPortrait = !LauncherAppState.isScreenLandscape(getContext()); 3979 if (mLauncher.getHotseat() != null && isPortrait) { 3980 Rect r = new Rect(); 3981 mLauncher.getHotseat().getHitRect(r); 3982 if (r.contains(x, y)) { 3983 return false; 3984 } 3985 } 3986 3987 boolean result = false; 3988 if (!workspaceInModalState() && !mIsSwitchingState && getOpenFolder() == null) { 3989 mInScrollArea = true; 3990 3991 final int page = getNextPage() + 3992 (direction == DragController.SCROLL_LEFT ? -1 : 1); 3993 // We always want to exit the current layout to ensure parity of enter / exit 3994 setCurrentDropLayout(null); 3995 3996 if (0 <= page && page < getChildCount()) { 3997 // Ensure that we are not dragging over to the custom content screen 3998 if (getScreenIdForPageIndex(page) == CUSTOM_CONTENT_SCREEN_ID) { 3999 return false; 4000 } 4001 4002 CellLayout layout = (CellLayout) getChildAt(page); 4003 setCurrentDragOverlappingLayout(layout); 4004 4005 // Workspace is responsible for drawing the edge glow on adjacent pages, 4006 // so we need to redraw the workspace when this may have changed. 4007 invalidate(); 4008 result = true; 4009 } 4010 } 4011 return result; 4012 } 4013 4014 @Override 4015 public boolean onExitScrollArea() { 4016 boolean result = false; 4017 if (mInScrollArea) { 4018 invalidate(); 4019 CellLayout layout = getCurrentDropLayout(); 4020 setCurrentDropLayout(layout); 4021 setCurrentDragOverlappingLayout(layout); 4022 4023 result = true; 4024 mInScrollArea = false; 4025 } 4026 return result; 4027 } 4028 4029 private void onResetScrollArea() { 4030 setCurrentDragOverlappingLayout(null); 4031 mInScrollArea = false; 4032 } 4033 4034 /** 4035 * Returns a specific CellLayout 4036 */ 4037 CellLayout getParentCellLayoutForView(View v) { 4038 ArrayList<CellLayout> layouts = getWorkspaceAndHotseatCellLayouts(); 4039 for (CellLayout layout : layouts) { 4040 if (layout.getShortcutsAndWidgets().indexOfChild(v) > -1) { 4041 return layout; 4042 } 4043 } 4044 return null; 4045 } 4046 4047 /** 4048 * Returns a list of all the CellLayouts in the workspace. 4049 */ 4050 ArrayList<CellLayout> getWorkspaceAndHotseatCellLayouts() { 4051 ArrayList<CellLayout> layouts = new ArrayList<CellLayout>(); 4052 int screenCount = getChildCount(); 4053 for (int screen = 0; screen < screenCount; screen++) { 4054 layouts.add(((CellLayout) getChildAt(screen))); 4055 } 4056 if (mLauncher.getHotseat() != null) { 4057 layouts.add(mLauncher.getHotseat().getLayout()); 4058 } 4059 return layouts; 4060 } 4061 4062 /** 4063 * We should only use this to search for specific children. Do not use this method to modify 4064 * ShortcutsAndWidgetsContainer directly. Includes ShortcutAndWidgetContainers from 4065 * the hotseat and workspace pages 4066 */ 4067 ArrayList<ShortcutAndWidgetContainer> getAllShortcutAndWidgetContainers() { 4068 ArrayList<ShortcutAndWidgetContainer> childrenLayouts = 4069 new ArrayList<ShortcutAndWidgetContainer>(); 4070 int screenCount = getChildCount(); 4071 for (int screen = 0; screen < screenCount; screen++) { 4072 childrenLayouts.add(((CellLayout) getChildAt(screen)).getShortcutsAndWidgets()); 4073 } 4074 if (mLauncher.getHotseat() != null) { 4075 childrenLayouts.add(mLauncher.getHotseat().getLayout().getShortcutsAndWidgets()); 4076 } 4077 return childrenLayouts; 4078 } 4079 4080 public Folder getFolderForTag(final Object tag) { 4081 return (Folder) getFirstMatch(new ItemOperator() { 4082 4083 @Override 4084 public boolean evaluate(ItemInfo info, View v, View parent) { 4085 return (v instanceof Folder) && (((Folder) v).getInfo() == tag) 4086 && ((Folder) v).getInfo().opened; 4087 } 4088 }); 4089 } 4090 4091 public View getViewForTag(final Object tag) { 4092 return getFirstMatch(new ItemOperator() { 4093 4094 @Override 4095 public boolean evaluate(ItemInfo info, View v, View parent) { 4096 return info == tag; 4097 } 4098 }); 4099 } 4100 4101 public LauncherAppWidgetHostView getWidgetForAppWidgetId(final int appWidgetId) { 4102 return (LauncherAppWidgetHostView) getFirstMatch(new ItemOperator() { 4103 4104 @Override 4105 public boolean evaluate(ItemInfo info, View v, View parent) { 4106 return (info instanceof LauncherAppWidgetInfo) && 4107 ((LauncherAppWidgetInfo) info).appWidgetId == appWidgetId; 4108 } 4109 }); 4110 } 4111 4112 private View getFirstMatch(final ItemOperator operator) { 4113 final View[] value = new View[1]; 4114 mapOverItems(MAP_NO_RECURSE, new ItemOperator() { 4115 @Override 4116 public boolean evaluate(ItemInfo info, View v, View parent) { 4117 if (operator.evaluate(info, v, parent)) { 4118 value[0] = v; 4119 return true; 4120 } 4121 return false; 4122 } 4123 }); 4124 return value[0]; 4125 } 4126 4127 void clearDropTargets() { 4128 mapOverItems(MAP_NO_RECURSE, new ItemOperator() { 4129 @Override 4130 public boolean evaluate(ItemInfo info, View v, View parent) { 4131 if (v instanceof DropTarget) { 4132 mDragController.removeDropTarget((DropTarget) v); 4133 } 4134 // not done, process all the shortcuts 4135 return false; 4136 } 4137 }); 4138 } 4139 4140 public void disableShortcutsByPackageName(final ArrayList<String> packages, 4141 final UserHandleCompat user, final int reason) { 4142 final HashSet<String> packageNames = new HashSet<String>(); 4143 packageNames.addAll(packages); 4144 4145 mapOverItems(MAP_RECURSE, new ItemOperator() { 4146 @Override 4147 public boolean evaluate(ItemInfo info, View v, View parent) { 4148 if (info instanceof ShortcutInfo && v instanceof BubbleTextView) { 4149 ShortcutInfo shortcutInfo = (ShortcutInfo) info; 4150 ComponentName cn = shortcutInfo.getTargetComponent(); 4151 if (user.equals(shortcutInfo.user) && cn != null 4152 && packageNames.contains(cn.getPackageName())) { 4153 shortcutInfo.isDisabled |= reason; 4154 BubbleTextView shortcut = (BubbleTextView) v; 4155 shortcut.applyFromShortcutInfo(shortcutInfo, mIconCache, true, false); 4156 4157 if (parent != null) { 4158 parent.invalidate(); 4159 } 4160 } 4161 } 4162 // process all the shortcuts 4163 return false; 4164 } 4165 }); 4166 } 4167 4168 // Removes ALL items that match a given package name, this is usually called when a package 4169 // has been removed and we want to remove all components (widgets, shortcuts, apps) that 4170 // belong to that package. 4171 void removeItemsByPackageName(final ArrayList<String> packages, final UserHandleCompat user) { 4172 final HashSet<String> packageNames = new HashSet<String>(); 4173 packageNames.addAll(packages); 4174 4175 // Filter out all the ItemInfos that this is going to affect 4176 final HashSet<ItemInfo> infos = new HashSet<ItemInfo>(); 4177 final HashSet<ComponentName> cns = new HashSet<ComponentName>(); 4178 ArrayList<CellLayout> cellLayouts = getWorkspaceAndHotseatCellLayouts(); 4179 for (CellLayout layoutParent : cellLayouts) { 4180 ViewGroup layout = layoutParent.getShortcutsAndWidgets(); 4181 int childCount = layout.getChildCount(); 4182 for (int i = 0; i < childCount; ++i) { 4183 View view = layout.getChildAt(i); 4184 infos.add((ItemInfo) view.getTag()); 4185 } 4186 } 4187 LauncherModel.ItemInfoFilter filter = new LauncherModel.ItemInfoFilter() { 4188 @Override 4189 public boolean filterItem(ItemInfo parent, ItemInfo info, 4190 ComponentName cn) { 4191 if (packageNames.contains(cn.getPackageName()) 4192 && info.user.equals(user)) { 4193 cns.add(cn); 4194 return true; 4195 } 4196 return false; 4197 } 4198 }; 4199 LauncherModel.filterItemInfos(infos, filter); 4200 4201 // Remove the affected components 4202 removeItemsByComponentName(cns, user); 4203 } 4204 4205 /** 4206 * Removes items that match the item info specified. When applications are removed 4207 * as a part of an update, this is called to ensure that other widgets and application 4208 * shortcuts are not removed. 4209 */ 4210 void removeItemsByComponentName(final HashSet<ComponentName> componentNames, 4211 final UserHandleCompat user) { 4212 ArrayList<CellLayout> cellLayouts = getWorkspaceAndHotseatCellLayouts(); 4213 for (final CellLayout layoutParent: cellLayouts) { 4214 final ViewGroup layout = layoutParent.getShortcutsAndWidgets(); 4215 4216 final HashMap<ItemInfo, View> children = new HashMap<ItemInfo, View>(); 4217 for (int j = 0; j < layout.getChildCount(); j++) { 4218 final View view = layout.getChildAt(j); 4219 children.put((ItemInfo) view.getTag(), view); 4220 } 4221 4222 final ArrayList<View> childrenToRemove = new ArrayList<View>(); 4223 final HashMap<FolderInfo, ArrayList<ShortcutInfo>> folderAppsToRemove = 4224 new HashMap<FolderInfo, ArrayList<ShortcutInfo>>(); 4225 LauncherModel.ItemInfoFilter filter = new LauncherModel.ItemInfoFilter() { 4226 @Override 4227 public boolean filterItem(ItemInfo parent, ItemInfo info, 4228 ComponentName cn) { 4229 if (parent instanceof FolderInfo) { 4230 if (componentNames.contains(cn) && info.user.equals(user)) { 4231 FolderInfo folder = (FolderInfo) parent; 4232 ArrayList<ShortcutInfo> appsToRemove; 4233 if (folderAppsToRemove.containsKey(folder)) { 4234 appsToRemove = folderAppsToRemove.get(folder); 4235 } else { 4236 appsToRemove = new ArrayList<ShortcutInfo>(); 4237 folderAppsToRemove.put(folder, appsToRemove); 4238 } 4239 appsToRemove.add((ShortcutInfo) info); 4240 return true; 4241 } 4242 } else { 4243 if (componentNames.contains(cn) && info.user.equals(user)) { 4244 childrenToRemove.add(children.get(info)); 4245 return true; 4246 } 4247 } 4248 return false; 4249 } 4250 }; 4251 LauncherModel.filterItemInfos(children.keySet(), filter); 4252 4253 // Remove all the apps from their folders 4254 for (FolderInfo folder : folderAppsToRemove.keySet()) { 4255 ArrayList<ShortcutInfo> appsToRemove = folderAppsToRemove.get(folder); 4256 for (ShortcutInfo info : appsToRemove) { 4257 folder.remove(info); 4258 } 4259 } 4260 4261 // Remove all the other children 4262 for (View child : childrenToRemove) { 4263 // Note: We can not remove the view directly from CellLayoutChildren as this 4264 // does not re-mark the spaces as unoccupied. 4265 layoutParent.removeViewInLayout(child); 4266 if (child instanceof DropTarget) { 4267 mDragController.removeDropTarget((DropTarget) child); 4268 } 4269 } 4270 4271 if (childrenToRemove.size() > 0) { 4272 layout.requestLayout(); 4273 layout.invalidate(); 4274 } 4275 } 4276 4277 // Strip all the empty screens 4278 stripEmptyScreens(); 4279 } 4280 4281 interface ItemOperator { 4282 /** 4283 * Process the next itemInfo, possibly with side-effect on {@link ItemOperator#value}. 4284 * 4285 * @param info info for the shortcut 4286 * @param view view for the shortcut 4287 * @param parent containing folder, or null 4288 * @return true if done, false to continue the map 4289 */ 4290 public boolean evaluate(ItemInfo info, View view, View parent); 4291 } 4292 4293 /** 4294 * Map the operator over the shortcuts and widgets, return the first-non-null value. 4295 * 4296 * @param recurse true: iterate over folder children. false: op get the folders themselves. 4297 * @param op the operator to map over the shortcuts 4298 */ 4299 void mapOverItems(boolean recurse, ItemOperator op) { 4300 ArrayList<ShortcutAndWidgetContainer> containers = getAllShortcutAndWidgetContainers(); 4301 final int containerCount = containers.size(); 4302 for (int containerIdx = 0; containerIdx < containerCount; containerIdx++) { 4303 ShortcutAndWidgetContainer container = containers.get(containerIdx); 4304 // map over all the shortcuts on the workspace 4305 final int itemCount = container.getChildCount(); 4306 for (int itemIdx = 0; itemIdx < itemCount; itemIdx++) { 4307 View item = container.getChildAt(itemIdx); 4308 ItemInfo info = (ItemInfo) item.getTag(); 4309 if (recurse && info instanceof FolderInfo && item instanceof FolderIcon) { 4310 FolderIcon folder = (FolderIcon) item; 4311 ArrayList<View> folderChildren = folder.getFolder().getItemsInReadingOrder(); 4312 // map over all the children in the folder 4313 final int childCount = folderChildren.size(); 4314 for (int childIdx = 0; childIdx < childCount; childIdx++) { 4315 View child = folderChildren.get(childIdx); 4316 info = (ItemInfo) child.getTag(); 4317 if (op.evaluate(info, child, folder)) { 4318 return; 4319 } 4320 } 4321 } else { 4322 if (op.evaluate(info, item, null)) { 4323 return; 4324 } 4325 } 4326 } 4327 } 4328 } 4329 4330 void updateShortcuts(ArrayList<ShortcutInfo> shortcuts) { 4331 final HashSet<ShortcutInfo> updates = new HashSet<ShortcutInfo>(shortcuts); 4332 mapOverItems(MAP_RECURSE, new ItemOperator() { 4333 @Override 4334 public boolean evaluate(ItemInfo info, View v, View parent) { 4335 if (info instanceof ShortcutInfo && v instanceof BubbleTextView && 4336 updates.contains(info)) { 4337 ShortcutInfo si = (ShortcutInfo) info; 4338 BubbleTextView shortcut = (BubbleTextView) v; 4339 boolean oldPromiseState = getTextViewIcon(shortcut) 4340 instanceof PreloadIconDrawable; 4341 shortcut.applyFromShortcutInfo(si, mIconCache, true, 4342 si.isPromise() != oldPromiseState); 4343 4344 if (parent != null) { 4345 parent.invalidate(); 4346 } 4347 } 4348 // process all the shortcuts 4349 return false; 4350 } 4351 }); 4352 } 4353 4354 public void removeAbandonedPromise(String packageName, UserHandleCompat user) { 4355 ArrayList<String> packages = new ArrayList<String>(1); 4356 packages.add(packageName); 4357 LauncherModel.deletePackageFromDatabase(mLauncher, packageName, user); 4358 removeItemsByPackageName(packages, user); 4359 } 4360 4361 public void updateRestoreItems(final HashSet<ItemInfo> updates) { 4362 mapOverItems(MAP_RECURSE, new ItemOperator() { 4363 @Override 4364 public boolean evaluate(ItemInfo info, View v, View parent) { 4365 if (info instanceof ShortcutInfo && v instanceof BubbleTextView 4366 && updates.contains(info)) { 4367 ((BubbleTextView) v).applyState(false); 4368 } else if (v instanceof PendingAppWidgetHostView 4369 && info instanceof LauncherAppWidgetInfo 4370 && updates.contains(info)) { 4371 ((PendingAppWidgetHostView) v).applyState(); 4372 } 4373 // process all the shortcuts 4374 return false; 4375 } 4376 }); 4377 } 4378 4379 void widgetsRestored(ArrayList<LauncherAppWidgetInfo> changedInfo) { 4380 if (!changedInfo.isEmpty()) { 4381 DeferredWidgetRefresh widgetRefresh = new DeferredWidgetRefresh(changedInfo, 4382 mLauncher.getAppWidgetHost()); 4383 if (LauncherModel.getProviderInfo(getContext(), 4384 changedInfo.get(0).providerName, 4385 changedInfo.get(0).user) != null) { 4386 // Re-inflate the widgets which have changed status 4387 widgetRefresh.run(); 4388 } else { 4389 // widgetRefresh will automatically run when the packages are updated. 4390 // For now just update the progress bars 4391 for (LauncherAppWidgetInfo info : changedInfo) { 4392 if (info.hostView instanceof PendingAppWidgetHostView) { 4393 info.installProgress = 100; 4394 ((PendingAppWidgetHostView) info.hostView).applyState(); 4395 } 4396 } 4397 } 4398 } 4399 } 4400 4401 private void moveToScreen(int page, boolean animate) { 4402 if (!workspaceInModalState()) { 4403 if (animate) { 4404 snapToPage(page); 4405 } else { 4406 setCurrentPage(page); 4407 } 4408 } 4409 View child = getChildAt(page); 4410 if (child != null) { 4411 child.requestFocus(); 4412 } 4413 } 4414 4415 void moveToDefaultScreen(boolean animate) { 4416 moveToScreen(mDefaultPage, animate); 4417 } 4418 4419 void moveToCustomContentScreen(boolean animate) { 4420 if (hasCustomContent()) { 4421 int ccIndex = getPageIndexForScreenId(CUSTOM_CONTENT_SCREEN_ID); 4422 if (animate) { 4423 snapToPage(ccIndex); 4424 } else { 4425 setCurrentPage(ccIndex); 4426 } 4427 View child = getChildAt(ccIndex); 4428 if (child != null) { 4429 child.requestFocus(); 4430 } 4431 } 4432 exitWidgetResizeMode(); 4433 } 4434 4435 @Override 4436 protected PageIndicator.PageMarkerResources getPageIndicatorMarker(int pageIndex) { 4437 long screenId = getScreenIdForPageIndex(pageIndex); 4438 if (screenId == EXTRA_EMPTY_SCREEN_ID) { 4439 int count = mScreenOrder.size() - numCustomPages(); 4440 if (count > 1) { 4441 return new PageIndicator.PageMarkerResources(R.drawable.ic_pageindicator_current, 4442 R.drawable.ic_pageindicator_add); 4443 } 4444 } 4445 4446 return super.getPageIndicatorMarker(pageIndex); 4447 } 4448 4449 @Override 4450 public void syncPages() { 4451 } 4452 4453 @Override 4454 public void syncPageItems(int page, boolean immediate) { 4455 } 4456 4457 protected String getPageIndicatorDescription() { 4458 String settings = getResources().getString(R.string.settings_button_text); 4459 return getCurrentPageDescription() + ", " + settings; 4460 } 4461 4462 protected String getCurrentPageDescription() { 4463 int page = (mNextPage != INVALID_PAGE) ? mNextPage : mCurrentPage; 4464 int delta = numCustomPages(); 4465 if (hasCustomContent() && getNextPage() == 0) { 4466 return mCustomContentDescription; 4467 } 4468 return String.format(getContext().getString(R.string.workspace_scroll_format), 4469 page + 1 - delta, getChildCount() - delta); 4470 } 4471 4472 public void getLocationInDragLayer(int[] loc) { 4473 mLauncher.getDragLayer().getLocationInDragLayer(this, loc); 4474 } 4475 4476 /** 4477 * Used as a workaround to ensure that the AppWidgetService receives the 4478 * PACKAGE_ADDED broadcast before updating widgets. 4479 */ 4480 private class DeferredWidgetRefresh implements Runnable { 4481 private final ArrayList<LauncherAppWidgetInfo> mInfos; 4482 private final LauncherAppWidgetHost mHost; 4483 private final Handler mHandler; 4484 4485 private boolean mRefreshPending; 4486 4487 public DeferredWidgetRefresh(ArrayList<LauncherAppWidgetInfo> infos, 4488 LauncherAppWidgetHost host) { 4489 mInfos = infos; 4490 mHost = host; 4491 mHandler = new Handler(); 4492 mRefreshPending = true; 4493 4494 mHost.addProviderChangeListener(this); 4495 // Force refresh after 10 seconds, if we don't get the provider changed event. 4496 // This could happen when the provider is no longer available in the app. 4497 mHandler.postDelayed(this, 10000); 4498 } 4499 4500 @Override 4501 public void run() { 4502 mHost.removeProviderChangeListener(this); 4503 mHandler.removeCallbacks(this); 4504 4505 if (!mRefreshPending) { 4506 return; 4507 } 4508 4509 mRefreshPending = false; 4510 4511 for (LauncherAppWidgetInfo info : mInfos) { 4512 if (info.hostView instanceof PendingAppWidgetHostView) { 4513 PendingAppWidgetHostView view = (PendingAppWidgetHostView) info.hostView; 4514 mLauncher.removeAppWidget(info); 4515 4516 CellLayout cl = (CellLayout) view.getParent().getParent(); 4517 // Remove the current widget 4518 cl.removeView(view); 4519 mLauncher.bindAppWidget(info); 4520 } 4521 } 4522 } 4523 } 4524} 4525