Workspace.java revision 0f785720667ab8afe4b4620a6c333d382d8659ed
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.Animator.AnimatorListener; 21import android.animation.AnimatorListenerAdapter; 22import android.animation.AnimatorSet; 23import android.animation.LayoutTransition; 24import android.animation.ObjectAnimator; 25import android.animation.PropertyValuesHolder; 26import android.animation.TimeInterpolator; 27import android.animation.ValueAnimator; 28import android.animation.ValueAnimator.AnimatorUpdateListener; 29import android.annotation.TargetApi; 30import android.app.WallpaperManager; 31import android.appwidget.AppWidgetHostView; 32import android.appwidget.AppWidgetProviderInfo; 33import android.content.ComponentName; 34import android.content.Context; 35import android.content.SharedPreferences; 36import android.content.res.Resources; 37import android.content.res.TypedArray; 38import android.graphics.Bitmap; 39import android.graphics.Canvas; 40import android.graphics.Matrix; 41import android.graphics.Paint; 42import android.graphics.Point; 43import android.graphics.PointF; 44import android.graphics.Rect; 45import android.graphics.Region.Op; 46import android.graphics.drawable.Drawable; 47import android.os.AsyncTask; 48import android.os.Build; 49import android.os.Handler; 50import android.os.IBinder; 51import android.os.Parcelable; 52import android.util.AttributeSet; 53import android.util.Log; 54import android.util.SparseArray; 55import android.view.Choreographer; 56import android.view.Display; 57import android.view.MotionEvent; 58import android.view.View; 59import android.view.ViewGroup; 60import android.view.accessibility.AccessibilityManager; 61import android.view.animation.DecelerateInterpolator; 62import android.view.animation.Interpolator; 63import android.widget.TextView; 64 65import com.android.launcher3.FolderIcon.FolderRingAnimator; 66import com.android.launcher3.Launcher.CustomContentCallbacks; 67import com.android.launcher3.Launcher.LauncherOverlay; 68import com.android.launcher3.LauncherSettings.Favorites; 69import com.android.launcher3.compat.PackageInstallerCompat; 70import com.android.launcher3.compat.PackageInstallerCompat.PackageInstallInfo; 71import com.android.launcher3.compat.UserHandleCompat; 72import com.android.launcher3.util.Thunk; 73import com.android.launcher3.util.WallpaperUtils; 74import com.android.launcher3.widget.PendingAddShortcutInfo; 75import com.android.launcher3.widget.PendingAddWidgetInfo; 76 77import java.util.ArrayList; 78import java.util.HashMap; 79import java.util.HashSet; 80import java.util.Iterator; 81import java.util.concurrent.atomic.AtomicInteger; 82 83/** 84 * The workspace is a wide area with a wallpaper and a finite number of pages. 85 * Each page contains a number of icons, folders or widgets the user can 86 * interact with. A workspace is meant to be used with a fixed width only. 87 */ 88public class Workspace extends SmoothPagedView 89 implements DropTarget, DragSource, DragScroller, View.OnTouchListener, 90 DragController.DragListener, LauncherTransitionable, ViewGroup.OnHierarchyChangeListener, 91 Insettable { 92 private static final String TAG = "Launcher.Workspace"; 93 94 private static final int CHILDREN_OUTLINE_FADE_OUT_DELAY = 0; 95 private static final int CHILDREN_OUTLINE_FADE_OUT_DURATION = 375; 96 private static final int CHILDREN_OUTLINE_FADE_IN_DURATION = 100; 97 98 protected static final int SNAP_OFF_EMPTY_SCREEN_DURATION = 400; 99 protected static final int FADE_EMPTY_SCREEN_DURATION = 150; 100 101 private static final int BACKGROUND_FADE_OUT_DURATION = 350; 102 private static final int ADJACENT_SCREEN_DROP_DURATION = 300; 103 private static final int FLING_THRESHOLD_VELOCITY = 500; 104 105 private static final float ALPHA_CUTOFF_THRESHOLD = 0.01f; 106 107 static final boolean MAP_NO_RECURSE = false; 108 static final boolean MAP_RECURSE = true; 109 110 // These animators are used to fade the children's outlines 111 private ObjectAnimator mChildrenOutlineFadeInAnimation; 112 private ObjectAnimator mChildrenOutlineFadeOutAnimation; 113 private float mChildrenOutlineAlpha = 0; 114 115 // These properties refer to the background protection gradient used for AllApps and Customize 116 private ValueAnimator mBackgroundFadeInAnimation; 117 private ValueAnimator mBackgroundFadeOutAnimation; 118 119 private static final long CUSTOM_CONTENT_GESTURE_DELAY = 200; 120 private long mTouchDownTime = -1; 121 private long mCustomContentShowTime = -1; 122 123 private LayoutTransition mLayoutTransition; 124 @Thunk final WallpaperManager mWallpaperManager; 125 @Thunk IBinder mWindowToken; 126 127 private int mOriginalDefaultPage; 128 private int mDefaultPage; 129 130 private ShortcutAndWidgetContainer mDragSourceInternal; 131 @Thunk static boolean sAccessibilityEnabled; 132 133 // The screen id used for the empty screen always present to the right. 134 final static long EXTRA_EMPTY_SCREEN_ID = -201; 135 private final static long CUSTOM_CONTENT_SCREEN_ID = -301; 136 137 @Thunk HashMap<Long, CellLayout> mWorkspaceScreens = new HashMap<Long, CellLayout>(); 138 @Thunk ArrayList<Long> mScreenOrder = new ArrayList<Long>(); 139 140 @Thunk Runnable mRemoveEmptyScreenRunnable; 141 @Thunk boolean mDeferRemoveExtraEmptyScreen = false; 142 143 /** 144 * CellInfo for the cell that is currently being dragged 145 */ 146 private CellLayout.CellInfo mDragInfo; 147 148 /** 149 * Target drop area calculated during last acceptDrop call. 150 */ 151 @Thunk int[] mTargetCell = new int[2]; 152 private int mDragOverX = -1; 153 private int mDragOverY = -1; 154 155 static Rect mLandscapeCellLayoutMetrics = null; 156 static Rect mPortraitCellLayoutMetrics = null; 157 158 CustomContentCallbacks mCustomContentCallbacks; 159 boolean mCustomContentShowing; 160 private float mLastCustomContentScrollProgress = -1f; 161 private String mCustomContentDescription = ""; 162 163 /** 164 * The CellLayout that is currently being dragged over 165 */ 166 @Thunk CellLayout mDragTargetLayout = null; 167 /** 168 * The CellLayout that we will show as glowing 169 */ 170 private CellLayout mDragOverlappingLayout = null; 171 172 /** 173 * The CellLayout which will be dropped to 174 */ 175 private CellLayout mDropToLayout = null; 176 177 @Thunk Launcher mLauncher; 178 @Thunk IconCache mIconCache; 179 @Thunk DragController mDragController; 180 181 // These are temporary variables to prevent having to allocate a new object just to 182 // return an (x, y) value from helper functions. Do NOT use them to maintain other state. 183 private int[] mTempCell = new int[2]; 184 private int[] mTempPt = new int[2]; 185 private int[] mTempEstimate = new int[2]; 186 @Thunk float[] mDragViewVisualCenter = new float[2]; 187 private float[] mTempCellLayoutCenterCoordinates = new float[2]; 188 private Matrix mTempInverseMatrix = new Matrix(); 189 190 private SpringLoadedDragController mSpringLoadedDragController; 191 private float mSpringLoadedShrinkFactor; 192 private float mOverviewModeShrinkFactor; 193 194 // State variable that indicates whether the pages are small (ie when you're 195 // in all apps or customize mode) 196 197 enum State { NORMAL, NORMAL_HIDDEN, SPRING_LOADED, OVERVIEW, OVERVIEW_HIDDEN}; 198 private State mState = State.NORMAL; 199 private boolean mIsSwitchingState = false; 200 201 boolean mAnimatingViewIntoPlace = false; 202 boolean mIsDragOccuring = false; 203 boolean mChildrenLayersEnabled = true; 204 205 private boolean mStripScreensOnPageStopMoving = false; 206 207 /** Is the user is dragging an item near the edge of a page? */ 208 private boolean mInScrollArea = false; 209 210 private HolographicOutlineHelper mOutlineHelper; 211 @Thunk Bitmap mDragOutline = null; 212 private static final Rect sTempRect = new Rect(); 213 private final int[] mTempXY = new int[2]; 214 private int[] mTempVisiblePagesRange = new int[2]; 215 private boolean mOverscrollEffectSet; 216 public static final int DRAG_BITMAP_PADDING = 2; 217 private boolean mWorkspaceFadeInAdjacentScreens; 218 219 WallpaperOffsetInterpolator mWallpaperOffset; 220 @Thunk boolean mWallpaperIsLiveWallpaper; 221 @Thunk int mNumPagesForWallpaperParallax; 222 @Thunk float mLastSetWallpaperOffsetSteps = 0; 223 224 @Thunk Runnable mDelayedResizeRunnable; 225 private Runnable mDelayedSnapToPageRunnable; 226 private Point mDisplaySize = new Point(); 227 228 // Variables relating to the creation of user folders by hovering shortcuts over shortcuts 229 private static final int FOLDER_CREATION_TIMEOUT = 0; 230 public static final int REORDER_TIMEOUT = 350; 231 private final Alarm mFolderCreationAlarm = new Alarm(); 232 private final Alarm mReorderAlarm = new Alarm(); 233 @Thunk FolderRingAnimator mDragFolderRingAnimator = null; 234 private FolderIcon mDragOverFolderIcon = null; 235 private boolean mCreateUserFolderOnDrop = false; 236 private boolean mAddToExistingFolderOnDrop = false; 237 private DropTarget.DragEnforcer mDragEnforcer; 238 private float mMaxDistanceForFolderCreation; 239 240 private final Canvas mCanvas = new Canvas(); 241 242 // Variables relating to touch disambiguation (scrolling workspace vs. scrolling a widget) 243 private float mXDown; 244 private float mYDown; 245 final static float START_DAMPING_TOUCH_SLOP_ANGLE = (float) Math.PI / 6; 246 final static float MAX_SWIPE_ANGLE = (float) Math.PI / 3; 247 final static float TOUCH_SLOP_DAMPING_FACTOR = 4; 248 249 // Relating to the animation of items being dropped externally 250 public static final int ANIMATE_INTO_POSITION_AND_DISAPPEAR = 0; 251 public static final int ANIMATE_INTO_POSITION_AND_REMAIN = 1; 252 public static final int ANIMATE_INTO_POSITION_AND_RESIZE = 2; 253 public static final int COMPLETE_TWO_STAGE_WIDGET_DROP_ANIMATION = 3; 254 public static final int CANCEL_TWO_STAGE_WIDGET_DROP_ANIMATION = 4; 255 256 // Related to dragging, folder creation and reordering 257 private static final int DRAG_MODE_NONE = 0; 258 private static final int DRAG_MODE_CREATE_FOLDER = 1; 259 private static final int DRAG_MODE_ADD_TO_FOLDER = 2; 260 private static final int DRAG_MODE_REORDER = 3; 261 private int mDragMode = DRAG_MODE_NONE; 262 @Thunk int mLastReorderX = -1; 263 @Thunk int mLastReorderY = -1; 264 265 private SparseArray<Parcelable> mSavedStates; 266 private final ArrayList<Integer> mRestoredPages = new ArrayList<Integer>(); 267 268 // These variables are used for storing the initial and final values during workspace animations 269 private int mSavedScrollX; 270 private float mSavedRotationY; 271 private float mSavedTranslationX; 272 273 private float mCurrentScale; 274 private float mNewScale; 275 @Thunk float[] mOldBackgroundAlphas; 276 private float[] mOldAlphas; 277 @Thunk float[] mNewBackgroundAlphas; 278 private float[] mNewAlphas; 279 private int mLastChildCount = -1; 280 private float mTransitionProgress; 281 @Thunk Animator mStateAnimator = null; 282 283 float mOverScrollEffect = 0f; 284 285 @Thunk Runnable mDeferredAction; 286 private boolean mDeferDropAfterUninstall; 287 private boolean mUninstallSuccessful; 288 289 // State related to Launcher Overlay 290 LauncherOverlay mLauncherOverlay; 291 boolean mScrollInteractionBegan; 292 boolean mStartedSendingScrollEvents; 293 boolean mShouldSendPageSettled; 294 int mLastOverlaySroll = 0; 295 296 private final Runnable mBindPages = new Runnable() { 297 @Override 298 public void run() { 299 mLauncher.getModel().bindRemainingSynchronousPages(); 300 } 301 }; 302 303 /** 304 * Used to inflate the Workspace from XML. 305 * 306 * @param context The application's context. 307 * @param attrs The attributes set containing the Workspace's customization values. 308 */ 309 public Workspace(Context context, AttributeSet attrs) { 310 this(context, attrs, 0); 311 } 312 313 /** 314 * Used to inflate the Workspace from XML. 315 * 316 * @param context The application's context. 317 * @param attrs The attributes set containing the Workspace's customization values. 318 * @param defStyle Unused. 319 */ 320 public Workspace(Context context, AttributeSet attrs, int defStyle) { 321 super(context, attrs, defStyle); 322 mContentIsRefreshable = false; 323 324 mOutlineHelper = HolographicOutlineHelper.obtain(context); 325 326 mDragEnforcer = new DropTarget.DragEnforcer(context); 327 // With workspace, data is available straight from the get-go 328 setDataIsReady(); 329 330 mLauncher = (Launcher) context; 331 final Resources res = getResources(); 332 mWorkspaceFadeInAdjacentScreens = LauncherAppState.getInstance().getDynamicGrid(). 333 getDeviceProfile().shouldFadeAdjacentWorkspaceScreens(); 334 mFadeInAdjacentScreens = false; 335 mWallpaperManager = WallpaperManager.getInstance(context); 336 337 LauncherAppState app = LauncherAppState.getInstance(); 338 DeviceProfile grid = app.getDynamicGrid().getDeviceProfile(); 339 TypedArray a = context.obtainStyledAttributes(attrs, 340 R.styleable.Workspace, defStyle, 0); 341 mSpringLoadedShrinkFactor = 342 res.getInteger(R.integer.config_workspaceSpringLoadShrinkPercentage) / 100.0f; 343 mOverviewModeShrinkFactor = grid.getOverviewModeScale(); 344 mOriginalDefaultPage = mDefaultPage = a.getInt(R.styleable.Workspace_defaultScreen, 1); 345 a.recycle(); 346 347 setOnHierarchyChangeListener(this); 348 setHapticFeedbackEnabled(false); 349 350 initWorkspace(); 351 352 // Disable multitouch across the workspace/all apps/customize tray 353 setMotionEventSplittingEnabled(true); 354 setImportantForAccessibility(View.IMPORTANT_FOR_ACCESSIBILITY_YES); 355 } 356 357 @Override 358 public void setInsets(Rect insets) { 359 mInsets.set(insets); 360 361 CellLayout customScreen = getScreenWithId(CUSTOM_CONTENT_SCREEN_ID); 362 if (customScreen != null) { 363 View customContent = customScreen.getShortcutsAndWidgets().getChildAt(0); 364 if (customContent instanceof Insettable) { 365 ((Insettable) customContent).setInsets(mInsets); 366 } 367 } 368 } 369 370 // estimate the size of a widget with spans hSpan, vSpan. return MAX_VALUE for each 371 // dimension if unsuccessful 372 public int[] estimateItemSize(ItemInfo itemInfo, boolean springLoaded) { 373 int[] size = new int[2]; 374 if (getChildCount() > 0) { 375 // Use the first non-custom page to estimate the child position 376 CellLayout cl = (CellLayout) getChildAt(numCustomPages()); 377 Rect r = estimateItemPosition(cl, itemInfo, 0, 0, itemInfo.spanX, itemInfo.spanY); 378 size[0] = r.width(); 379 size[1] = r.height(); 380 if (springLoaded) { 381 size[0] *= mSpringLoadedShrinkFactor; 382 size[1] *= mSpringLoadedShrinkFactor; 383 } 384 return size; 385 } else { 386 size[0] = Integer.MAX_VALUE; 387 size[1] = Integer.MAX_VALUE; 388 return size; 389 } 390 } 391 392 public Rect estimateItemPosition(CellLayout cl, ItemInfo pendingInfo, 393 int hCell, int vCell, int hSpan, int vSpan) { 394 Rect r = new Rect(); 395 cl.cellToRect(hCell, vCell, hSpan, vSpan, r); 396 return r; 397 } 398 399 public void onDragStart(final DragSource source, Object info, int dragAction) { 400 mIsDragOccuring = true; 401 updateChildrenLayersEnabled(false); 402 mLauncher.lockScreenOrientation(); 403 mLauncher.onInteractionBegin(); 404 setChildrenBackgroundAlphaMultipliers(1f); 405 // Prevent any Un/InstallShortcutReceivers from updating the db while we are dragging 406 InstallShortcutReceiver.enableInstallQueue(); 407 post(new Runnable() { 408 @Override 409 public void run() { 410 if (mIsDragOccuring) { 411 mDeferRemoveExtraEmptyScreen = false; 412 addExtraEmptyScreenOnDrag(); 413 } 414 } 415 }); 416 } 417 418 419 public void deferRemoveExtraEmptyScreen() { 420 mDeferRemoveExtraEmptyScreen = true; 421 } 422 423 public void onDragEnd() { 424 if (!mDeferRemoveExtraEmptyScreen) { 425 removeExtraEmptyScreen(true, mDragSourceInternal != null); 426 } 427 428 mIsDragOccuring = false; 429 updateChildrenLayersEnabled(false); 430 mLauncher.unlockScreenOrientation(false); 431 432 // Re-enable any Un/InstallShortcutReceiver and now process any queued items 433 InstallShortcutReceiver.disableAndFlushInstallQueue(getContext()); 434 435 mDragSourceInternal = null; 436 mLauncher.onInteractionEnd(); 437 } 438 439 /** 440 * Initializes various states for this workspace. 441 */ 442 protected void initWorkspace() { 443 mCurrentPage = mDefaultPage; 444 LauncherAppState app = LauncherAppState.getInstance(); 445 DeviceProfile grid = app.getDynamicGrid().getDeviceProfile(); 446 mIconCache = app.getIconCache(); 447 setWillNotDraw(false); 448 setClipChildren(false); 449 setClipToPadding(false); 450 setChildrenDrawnWithCacheEnabled(true); 451 452 setMinScale(mOverviewModeShrinkFactor); 453 setupLayoutTransition(); 454 455 mWallpaperOffset = new WallpaperOffsetInterpolator(); 456 Display display = mLauncher.getWindowManager().getDefaultDisplay(); 457 display.getSize(mDisplaySize); 458 459 mMaxDistanceForFolderCreation = (0.55f * grid.iconSizePx); 460 mFlingThresholdVelocity = (int) (FLING_THRESHOLD_VELOCITY * mDensity); 461 462 // Set the wallpaper dimensions when Launcher starts up 463 setWallpaperDimension(); 464 } 465 466 private void setupLayoutTransition() { 467 // We want to show layout transitions when pages are deleted, to close the gap. 468 mLayoutTransition = new LayoutTransition(); 469 mLayoutTransition.enableTransitionType(LayoutTransition.DISAPPEARING); 470 mLayoutTransition.enableTransitionType(LayoutTransition.CHANGE_DISAPPEARING); 471 mLayoutTransition.disableTransitionType(LayoutTransition.APPEARING); 472 mLayoutTransition.disableTransitionType(LayoutTransition.CHANGE_APPEARING); 473 setLayoutTransition(mLayoutTransition); 474 } 475 476 void enableLayoutTransitions() { 477 setLayoutTransition(mLayoutTransition); 478 } 479 void disableLayoutTransitions() { 480 setLayoutTransition(null); 481 } 482 483 @Override 484 protected int getScrollMode() { 485 return SmoothPagedView.X_LARGE_MODE; 486 } 487 488 @Override 489 public void onChildViewAdded(View parent, View child) { 490 if (!(child instanceof CellLayout)) { 491 throw new IllegalArgumentException("A Workspace can only have CellLayout children."); 492 } 493 CellLayout cl = ((CellLayout) child); 494 cl.setOnInterceptTouchListener(this); 495 cl.setClickable(true); 496 cl.setImportantForAccessibility(IMPORTANT_FOR_ACCESSIBILITY_NO); 497 super.onChildViewAdded(parent, child); 498 } 499 500 protected boolean shouldDrawChild(View child) { 501 final CellLayout cl = (CellLayout) child; 502 return super.shouldDrawChild(child) && 503 (mIsSwitchingState || 504 cl.getShortcutsAndWidgets().getAlpha() > 0 || 505 cl.getBackgroundAlpha() > 0); 506 } 507 508 /** 509 * @return The open folder on the current screen, or null if there is none 510 */ 511 Folder getOpenFolder() { 512 DragLayer dragLayer = mLauncher.getDragLayer(); 513 int count = dragLayer.getChildCount(); 514 for (int i = 0; i < count; i++) { 515 View child = dragLayer.getChildAt(i); 516 if (child instanceof Folder) { 517 Folder folder = (Folder) child; 518 if (folder.getInfo().opened) 519 return folder; 520 } 521 } 522 return null; 523 } 524 525 boolean isTouchActive() { 526 return mTouchState != TOUCH_STATE_REST; 527 } 528 529 public void removeAllWorkspaceScreens() { 530 // Disable all layout transitions before removing all pages to ensure that we don't get the 531 // transition animations competing with us changing the scroll when we add pages or the 532 // custom content screen 533 disableLayoutTransitions(); 534 535 // Since we increment the current page when we call addCustomContentPage via bindScreens 536 // (and other places), we need to adjust the current page back when we clear the pages 537 if (hasCustomContent()) { 538 removeCustomContentPage(); 539 } 540 541 // Remove the pages and clear the screen models 542 removeAllViews(); 543 mScreenOrder.clear(); 544 mWorkspaceScreens.clear(); 545 546 // Re-enable the layout transitions 547 enableLayoutTransitions(); 548 } 549 550 public long insertNewWorkspaceScreenBeforeEmptyScreen(long screenId) { 551 // Find the index to insert this view into. If the empty screen exists, then 552 // insert it before that. 553 int insertIndex = mScreenOrder.indexOf(EXTRA_EMPTY_SCREEN_ID); 554 if (insertIndex < 0) { 555 insertIndex = mScreenOrder.size(); 556 } 557 return insertNewWorkspaceScreen(screenId, insertIndex); 558 } 559 560 public long insertNewWorkspaceScreen(long screenId) { 561 return insertNewWorkspaceScreen(screenId, getChildCount()); 562 } 563 564 public long insertNewWorkspaceScreen(long screenId, int insertIndex) { 565 if (mWorkspaceScreens.containsKey(screenId)) { 566 throw new RuntimeException("Screen id " + screenId + " already exists!"); 567 } 568 569 CellLayout newScreen = (CellLayout) 570 mLauncher.getLayoutInflater().inflate(R.layout.workspace_screen, null); 571 572 newScreen.setOnLongClickListener(mLongClickListener); 573 newScreen.setOnClickListener(mLauncher); 574 newScreen.setSoundEffectsEnabled(false); 575 mWorkspaceScreens.put(screenId, newScreen); 576 mScreenOrder.add(insertIndex, screenId); 577 addView(newScreen, insertIndex); 578 579 LauncherAccessibilityDelegate delegate = 580 LauncherAppState.getInstance().getAccessibilityDelegate(); 581 if (delegate != null && delegate.isInAccessibleDrag()) { 582 newScreen.enableAccessibleDrag(true); 583 } 584 return screenId; 585 } 586 587 public void createCustomContentContainer() { 588 CellLayout customScreen = (CellLayout) 589 mLauncher.getLayoutInflater().inflate(R.layout.workspace_screen, null); 590 customScreen.disableBackground(); 591 customScreen.disableDragTarget(); 592 593 mWorkspaceScreens.put(CUSTOM_CONTENT_SCREEN_ID, customScreen); 594 mScreenOrder.add(0, CUSTOM_CONTENT_SCREEN_ID); 595 596 // We want no padding on the custom content 597 customScreen.setPadding(0, 0, 0, 0); 598 599 addFullScreenPage(customScreen); 600 601 // Ensure that the current page and default page are maintained. 602 mDefaultPage = mOriginalDefaultPage + 1; 603 604 // Update the custom content hint 605 if (mRestorePage != INVALID_RESTORE_PAGE) { 606 mRestorePage = mRestorePage + 1; 607 } else { 608 setCurrentPage(getCurrentPage() + 1); 609 } 610 } 611 612 public void removeCustomContentPage() { 613 CellLayout customScreen = getScreenWithId(CUSTOM_CONTENT_SCREEN_ID); 614 if (customScreen == null) { 615 throw new RuntimeException("Expected custom content screen to exist"); 616 } 617 618 mWorkspaceScreens.remove(CUSTOM_CONTENT_SCREEN_ID); 619 mScreenOrder.remove(CUSTOM_CONTENT_SCREEN_ID); 620 removeView(customScreen); 621 622 if (mCustomContentCallbacks != null) { 623 mCustomContentCallbacks.onScrollProgressChanged(0); 624 mCustomContentCallbacks.onHide(); 625 } 626 627 mCustomContentCallbacks = null; 628 629 // Ensure that the current page and default page are maintained. 630 mDefaultPage = mOriginalDefaultPage - 1; 631 632 // Update the custom content hint 633 if (mRestorePage != INVALID_RESTORE_PAGE) { 634 mRestorePage = mRestorePage - 1; 635 } else { 636 setCurrentPage(getCurrentPage() - 1); 637 } 638 } 639 640 public void addToCustomContentPage(View customContent, CustomContentCallbacks callbacks, 641 String description) { 642 if (getPageIndexForScreenId(CUSTOM_CONTENT_SCREEN_ID) < 0) { 643 throw new RuntimeException("Expected custom content screen to exist"); 644 } 645 646 // Add the custom content to the full screen custom page 647 CellLayout customScreen = getScreenWithId(CUSTOM_CONTENT_SCREEN_ID); 648 int spanX = customScreen.getCountX(); 649 int spanY = customScreen.getCountY(); 650 CellLayout.LayoutParams lp = new CellLayout.LayoutParams(0, 0, spanX, spanY); 651 lp.canReorder = false; 652 lp.isFullscreen = true; 653 if (customContent instanceof Insettable) { 654 ((Insettable)customContent).setInsets(mInsets); 655 } 656 657 // Verify that the child is removed from any existing parent. 658 if (customContent.getParent() instanceof ViewGroup) { 659 ViewGroup parent = (ViewGroup) customContent.getParent(); 660 parent.removeView(customContent); 661 } 662 customScreen.removeAllViews(); 663 customScreen.addViewToCellLayout(customContent, 0, 0, lp, true); 664 mCustomContentDescription = description; 665 666 mCustomContentCallbacks = callbacks; 667 } 668 669 public void addExtraEmptyScreenOnDrag() { 670 boolean lastChildOnScreen = false; 671 boolean childOnFinalScreen = false; 672 673 // Cancel any pending removal of empty screen 674 mRemoveEmptyScreenRunnable = null; 675 676 if (mDragSourceInternal != null) { 677 if (mDragSourceInternal.getChildCount() == 1) { 678 lastChildOnScreen = true; 679 } 680 CellLayout cl = (CellLayout) mDragSourceInternal.getParent(); 681 if (indexOfChild(cl) == getChildCount() - 1) { 682 childOnFinalScreen = true; 683 } 684 } 685 686 // If this is the last item on the final screen 687 if (lastChildOnScreen && childOnFinalScreen) { 688 return; 689 } 690 if (!mWorkspaceScreens.containsKey(EXTRA_EMPTY_SCREEN_ID)) { 691 insertNewWorkspaceScreen(EXTRA_EMPTY_SCREEN_ID); 692 } 693 } 694 695 public boolean addExtraEmptyScreen() { 696 if (!mWorkspaceScreens.containsKey(EXTRA_EMPTY_SCREEN_ID)) { 697 insertNewWorkspaceScreen(EXTRA_EMPTY_SCREEN_ID); 698 return true; 699 } 700 return false; 701 } 702 703 private void convertFinalScreenToEmptyScreenIfNecessary() { 704 if (mLauncher.isWorkspaceLoading()) { 705 // Invalid and dangerous operation if workspace is loading 706 Launcher.addDumpLog(TAG, " - workspace loading, skip", true); 707 return; 708 } 709 710 if (hasExtraEmptyScreen() || mScreenOrder.size() == 0) return; 711 long finalScreenId = mScreenOrder.get(mScreenOrder.size() - 1); 712 713 if (finalScreenId == CUSTOM_CONTENT_SCREEN_ID) return; 714 CellLayout finalScreen = mWorkspaceScreens.get(finalScreenId); 715 716 // If the final screen is empty, convert it to the extra empty screen 717 if (finalScreen.getShortcutsAndWidgets().getChildCount() == 0 && 718 !finalScreen.isDropPending()) { 719 mWorkspaceScreens.remove(finalScreenId); 720 mScreenOrder.remove(finalScreenId); 721 722 // if this is the last non-custom content screen, convert it to the empty screen 723 mWorkspaceScreens.put(EXTRA_EMPTY_SCREEN_ID, finalScreen); 724 mScreenOrder.add(EXTRA_EMPTY_SCREEN_ID); 725 726 // Update the model if we have changed any screens 727 mLauncher.getModel().updateWorkspaceScreenOrder(mLauncher, mScreenOrder); 728 } 729 } 730 731 public void removeExtraEmptyScreen(final boolean animate, boolean stripEmptyScreens) { 732 removeExtraEmptyScreenDelayed(animate, null, 0, stripEmptyScreens); 733 } 734 735 public void removeExtraEmptyScreenDelayed(final boolean animate, final Runnable onComplete, 736 final int delay, final boolean stripEmptyScreens) { 737 if (mLauncher.isWorkspaceLoading()) { 738 // Don't strip empty screens if the workspace is still loading 739 Launcher.addDumpLog(TAG, " - workspace loading, skip", true); 740 return; 741 } 742 743 if (delay > 0) { 744 postDelayed(new Runnable() { 745 @Override 746 public void run() { 747 removeExtraEmptyScreenDelayed(animate, onComplete, 0, stripEmptyScreens); 748 } 749 }, delay); 750 return; 751 } 752 753 convertFinalScreenToEmptyScreenIfNecessary(); 754 if (hasExtraEmptyScreen()) { 755 int emptyIndex = mScreenOrder.indexOf(EXTRA_EMPTY_SCREEN_ID); 756 if (getNextPage() == emptyIndex) { 757 snapToPage(getNextPage() - 1, SNAP_OFF_EMPTY_SCREEN_DURATION); 758 fadeAndRemoveEmptyScreen(SNAP_OFF_EMPTY_SCREEN_DURATION, FADE_EMPTY_SCREEN_DURATION, 759 onComplete, stripEmptyScreens); 760 } else { 761 fadeAndRemoveEmptyScreen(0, FADE_EMPTY_SCREEN_DURATION, 762 onComplete, stripEmptyScreens); 763 } 764 return; 765 } else if (stripEmptyScreens) { 766 // If we're not going to strip the empty screens after removing 767 // the extra empty screen, do it right away. 768 stripEmptyScreens(); 769 } 770 771 if (onComplete != null) { 772 onComplete.run(); 773 } 774 } 775 776 private void fadeAndRemoveEmptyScreen(int delay, int duration, final Runnable onComplete, 777 final boolean stripEmptyScreens) { 778 // XXX: Do we need to update LM workspace screens below? 779 PropertyValuesHolder alpha = PropertyValuesHolder.ofFloat("alpha", 0f); 780 PropertyValuesHolder bgAlpha = PropertyValuesHolder.ofFloat("backgroundAlpha", 0f); 781 782 final CellLayout cl = mWorkspaceScreens.get(EXTRA_EMPTY_SCREEN_ID); 783 784 mRemoveEmptyScreenRunnable = new Runnable() { 785 @Override 786 public void run() { 787 if (hasExtraEmptyScreen()) { 788 mWorkspaceScreens.remove(EXTRA_EMPTY_SCREEN_ID); 789 mScreenOrder.remove(EXTRA_EMPTY_SCREEN_ID); 790 removeView(cl); 791 if (stripEmptyScreens) { 792 stripEmptyScreens(); 793 } 794 } 795 } 796 }; 797 798 ObjectAnimator oa = ObjectAnimator.ofPropertyValuesHolder(cl, alpha, bgAlpha); 799 oa.setDuration(duration); 800 oa.setStartDelay(delay); 801 oa.addListener(new AnimatorListenerAdapter() { 802 @Override 803 public void onAnimationEnd(Animator animation) { 804 if (mRemoveEmptyScreenRunnable != null) { 805 mRemoveEmptyScreenRunnable.run(); 806 } 807 if (onComplete != null) { 808 onComplete.run(); 809 } 810 } 811 }); 812 oa.start(); 813 } 814 815 public boolean hasExtraEmptyScreen() { 816 int nScreens = getChildCount(); 817 nScreens = nScreens - numCustomPages(); 818 return mWorkspaceScreens.containsKey(EXTRA_EMPTY_SCREEN_ID) && nScreens > 1; 819 } 820 821 public long commitExtraEmptyScreen() { 822 if (mLauncher.isWorkspaceLoading()) { 823 // Invalid and dangerous operation if workspace is loading 824 Launcher.addDumpLog(TAG, " - workspace loading, skip", true); 825 return -1; 826 } 827 828 int index = getPageIndexForScreenId(EXTRA_EMPTY_SCREEN_ID); 829 CellLayout cl = mWorkspaceScreens.get(EXTRA_EMPTY_SCREEN_ID); 830 mWorkspaceScreens.remove(EXTRA_EMPTY_SCREEN_ID); 831 mScreenOrder.remove(EXTRA_EMPTY_SCREEN_ID); 832 833 long newId = LauncherAppState.getLauncherProvider().generateNewScreenId(); 834 mWorkspaceScreens.put(newId, cl); 835 mScreenOrder.add(newId); 836 837 // Update the page indicator marker 838 if (getPageIndicator() != null) { 839 getPageIndicator().updateMarker(index, getPageIndicatorMarker(index)); 840 } 841 842 // Update the model for the new screen 843 mLauncher.getModel().updateWorkspaceScreenOrder(mLauncher, mScreenOrder); 844 845 return newId; 846 } 847 848 public CellLayout getScreenWithId(long screenId) { 849 CellLayout layout = mWorkspaceScreens.get(screenId); 850 return layout; 851 } 852 853 public long getIdForScreen(CellLayout layout) { 854 Iterator<Long> iter = mWorkspaceScreens.keySet().iterator(); 855 while (iter.hasNext()) { 856 long id = iter.next(); 857 if (mWorkspaceScreens.get(id) == layout) { 858 return id; 859 } 860 } 861 return -1; 862 } 863 864 public int getPageIndexForScreenId(long screenId) { 865 return indexOfChild(mWorkspaceScreens.get(screenId)); 866 } 867 868 public long getScreenIdForPageIndex(int index) { 869 if (0 <= index && index < mScreenOrder.size()) { 870 return mScreenOrder.get(index); 871 } 872 return -1; 873 } 874 875 ArrayList<Long> getScreenOrder() { 876 return mScreenOrder; 877 } 878 879 public void stripEmptyScreens() { 880 if (mLauncher.isWorkspaceLoading()) { 881 // Don't strip empty screens if the workspace is still loading. 882 // This is dangerous and can result in data loss. 883 Launcher.addDumpLog(TAG, " - workspace loading, skip", true); 884 return; 885 } 886 887 if (isPageMoving()) { 888 mStripScreensOnPageStopMoving = true; 889 return; 890 } 891 892 int currentPage = getNextPage(); 893 ArrayList<Long> removeScreens = new ArrayList<Long>(); 894 for (Long id: mWorkspaceScreens.keySet()) { 895 CellLayout cl = mWorkspaceScreens.get(id); 896 if (id >= 0 && cl.getShortcutsAndWidgets().getChildCount() == 0) { 897 removeScreens.add(id); 898 } 899 } 900 901 // We enforce at least one page to add new items to. In the case that we remove the last 902 // such screen, we convert the last screen to the empty screen 903 int minScreens = 1 + numCustomPages(); 904 905 int pageShift = 0; 906 for (Long id: removeScreens) { 907 CellLayout cl = mWorkspaceScreens.get(id); 908 mWorkspaceScreens.remove(id); 909 mScreenOrder.remove(id); 910 911 if (getChildCount() > minScreens) { 912 if (indexOfChild(cl) < currentPage) { 913 pageShift++; 914 } 915 removeView(cl); 916 } else { 917 // if this is the last non-custom content screen, convert it to the empty screen 918 mRemoveEmptyScreenRunnable = null; 919 mWorkspaceScreens.put(EXTRA_EMPTY_SCREEN_ID, cl); 920 mScreenOrder.add(EXTRA_EMPTY_SCREEN_ID); 921 } 922 } 923 924 if (!removeScreens.isEmpty()) { 925 // Update the model if we have changed any screens 926 mLauncher.getModel().updateWorkspaceScreenOrder(mLauncher, mScreenOrder); 927 } 928 929 if (pageShift >= 0) { 930 setCurrentPage(currentPage - pageShift); 931 } 932 } 933 934 // See implementation for parameter definition. 935 void addInScreen(View child, long container, long screenId, 936 int x, int y, int spanX, int spanY) { 937 addInScreen(child, container, screenId, x, y, spanX, spanY, false, false); 938 } 939 940 // At bind time, we use the rank (screenId) to compute x and y for hotseat items. 941 // See implementation for parameter definition. 942 void addInScreenFromBind(View child, long container, long screenId, int x, int y, 943 int spanX, int spanY) { 944 addInScreen(child, container, screenId, x, y, spanX, spanY, false, true); 945 } 946 947 // See implementation for parameter definition. 948 void addInScreen(View child, long container, long screenId, int x, int y, int spanX, int spanY, 949 boolean insert) { 950 addInScreen(child, container, screenId, x, y, spanX, spanY, insert, false); 951 } 952 953 /** 954 * Adds the specified child in the specified screen. The position and dimension of 955 * the child are defined by x, y, spanX and spanY. 956 * 957 * @param child The child to add in one of the workspace's screens. 958 * @param screenId The screen in which to add the child. 959 * @param x The X position of the child in the screen's grid. 960 * @param y The Y position of the child in the screen's grid. 961 * @param spanX The number of cells spanned horizontally by the child. 962 * @param spanY The number of cells spanned vertically by the child. 963 * @param insert When true, the child is inserted at the beginning of the children list. 964 * @param computeXYFromRank When true, we use the rank (stored in screenId) to compute 965 * the x and y position in which to place hotseat items. Otherwise 966 * we use the x and y position to compute the rank. 967 */ 968 void addInScreen(View child, long container, long screenId, int x, int y, int spanX, int spanY, 969 boolean insert, boolean computeXYFromRank) { 970 if (container == LauncherSettings.Favorites.CONTAINER_DESKTOP) { 971 if (getScreenWithId(screenId) == null) { 972 Log.e(TAG, "Skipping child, screenId " + screenId + " not found"); 973 // DEBUGGING - Print out the stack trace to see where we are adding from 974 new Throwable().printStackTrace(); 975 return; 976 } 977 } 978 if (screenId == EXTRA_EMPTY_SCREEN_ID) { 979 // This should never happen 980 throw new RuntimeException("Screen id should not be EXTRA_EMPTY_SCREEN_ID"); 981 } 982 983 final CellLayout layout; 984 if (container == LauncherSettings.Favorites.CONTAINER_HOTSEAT) { 985 layout = mLauncher.getHotseat().getLayout(); 986 child.setOnKeyListener(new HotseatIconKeyEventListener()); 987 988 // Hide folder title in the hotseat 989 if (child instanceof FolderIcon) { 990 ((FolderIcon) child).setTextVisible(false); 991 } 992 993 if (computeXYFromRank) { 994 x = mLauncher.getHotseat().getCellXFromOrder((int) screenId); 995 y = mLauncher.getHotseat().getCellYFromOrder((int) screenId); 996 } else { 997 screenId = mLauncher.getHotseat().getOrderInHotseat(x, y); 998 } 999 } else { 1000 // Show folder title if not in the hotseat 1001 if (child instanceof FolderIcon) { 1002 ((FolderIcon) child).setTextVisible(true); 1003 } 1004 layout = getScreenWithId(screenId); 1005 child.setOnKeyListener(new IconKeyEventListener()); 1006 } 1007 1008 ViewGroup.LayoutParams genericLp = child.getLayoutParams(); 1009 CellLayout.LayoutParams lp; 1010 if (genericLp == null || !(genericLp instanceof CellLayout.LayoutParams)) { 1011 lp = new CellLayout.LayoutParams(x, y, spanX, spanY); 1012 } else { 1013 lp = (CellLayout.LayoutParams) genericLp; 1014 lp.cellX = x; 1015 lp.cellY = y; 1016 lp.cellHSpan = spanX; 1017 lp.cellVSpan = spanY; 1018 } 1019 1020 if (spanX < 0 && spanY < 0) { 1021 lp.isLockedToGrid = false; 1022 } 1023 1024 // Get the canonical child id to uniquely represent this view in this screen 1025 ItemInfo info = (ItemInfo) child.getTag(); 1026 int childId = mLauncher.getViewIdForItem(info); 1027 1028 boolean markCellsAsOccupied = !(child instanceof Folder); 1029 if (!layout.addViewToCellLayout(child, insert ? 0 : -1, childId, lp, markCellsAsOccupied)) { 1030 // TODO: This branch occurs when the workspace is adding views 1031 // outside of the defined grid 1032 // maybe we should be deleting these items from the LauncherModel? 1033 Launcher.addDumpLog(TAG, "Failed to add to item at (" + lp.cellX + "," + lp.cellY + ") to CellLayout", true); 1034 } 1035 1036 if (!(child instanceof Folder)) { 1037 child.setHapticFeedbackEnabled(false); 1038 child.setOnLongClickListener(mLongClickListener); 1039 } 1040 if (child instanceof DropTarget) { 1041 mDragController.addDropTarget((DropTarget) child); 1042 } 1043 } 1044 1045 /** 1046 * Called directly from a CellLayout (not by the framework), after we've been added as a 1047 * listener via setOnInterceptTouchEventListener(). This allows us to tell the CellLayout 1048 * that it should intercept touch events, which is not something that is normally supported. 1049 */ 1050 @Override 1051 public boolean onTouch(View v, MotionEvent event) { 1052 return (workspaceInModalState() || !isFinishedSwitchingState()) 1053 || (!workspaceInModalState() && indexOfChild(v) != mCurrentPage); 1054 } 1055 1056 public boolean isSwitchingState() { 1057 return mIsSwitchingState; 1058 } 1059 1060 /** This differs from isSwitchingState in that we take into account how far the transition 1061 * has completed. */ 1062 public boolean isFinishedSwitchingState() { 1063 return !mIsSwitchingState || (mTransitionProgress > 0.5f); 1064 } 1065 1066 protected void onWindowVisibilityChanged (int visibility) { 1067 mLauncher.onWindowVisibilityChanged(visibility); 1068 } 1069 1070 @Override 1071 public boolean dispatchUnhandledMove(View focused, int direction) { 1072 if (workspaceInModalState() || !isFinishedSwitchingState()) { 1073 // when the home screens are shrunken, shouldn't allow side-scrolling 1074 return false; 1075 } 1076 return super.dispatchUnhandledMove(focused, direction); 1077 } 1078 1079 @Override 1080 public boolean onInterceptTouchEvent(MotionEvent ev) { 1081 switch (ev.getAction() & MotionEvent.ACTION_MASK) { 1082 case MotionEvent.ACTION_DOWN: 1083 mXDown = ev.getX(); 1084 mYDown = ev.getY(); 1085 mTouchDownTime = System.currentTimeMillis(); 1086 break; 1087 case MotionEvent.ACTION_POINTER_UP: 1088 case MotionEvent.ACTION_UP: 1089 if (mTouchState == TOUCH_STATE_REST) { 1090 final CellLayout currentPage = (CellLayout) getChildAt(mCurrentPage); 1091 if (currentPage != null && !currentPage.lastDownOnOccupiedCell()) { 1092 onWallpaperTap(ev); 1093 } 1094 } 1095 } 1096 return super.onInterceptTouchEvent(ev); 1097 } 1098 1099 @Override 1100 public boolean onGenericMotionEvent(MotionEvent event) { 1101 // Ignore pointer scroll events if the custom content doesn't allow scrolling. 1102 if ((getScreenIdForPageIndex(getCurrentPage()) == CUSTOM_CONTENT_SCREEN_ID) 1103 && (mCustomContentCallbacks != null) 1104 && !mCustomContentCallbacks.isScrollingAllowed()) { 1105 return false; 1106 } 1107 return super.onGenericMotionEvent(event); 1108 } 1109 1110 protected void reinflateWidgetsIfNecessary() { 1111 final int clCount = getChildCount(); 1112 for (int i = 0; i < clCount; i++) { 1113 CellLayout cl = (CellLayout) getChildAt(i); 1114 ShortcutAndWidgetContainer swc = cl.getShortcutsAndWidgets(); 1115 final int itemCount = swc.getChildCount(); 1116 for (int j = 0; j < itemCount; j++) { 1117 View v = swc.getChildAt(j); 1118 1119 if (v != null && v.getTag() instanceof LauncherAppWidgetInfo) { 1120 LauncherAppWidgetInfo info = (LauncherAppWidgetInfo) v.getTag(); 1121 LauncherAppWidgetHostView lahv = (LauncherAppWidgetHostView) info.hostView; 1122 if (lahv != null && lahv.isReinflateRequired()) { 1123 mLauncher.removeAppWidget(info); 1124 // Remove the current widget which is inflated with the wrong orientation 1125 cl.removeView(lahv); 1126 mLauncher.bindAppWidget(info); 1127 } 1128 } 1129 } 1130 } 1131 } 1132 1133 @Override 1134 protected void determineScrollingStart(MotionEvent ev) { 1135 if (!isFinishedSwitchingState()) return; 1136 1137 float deltaX = ev.getX() - mXDown; 1138 float absDeltaX = Math.abs(deltaX); 1139 float absDeltaY = Math.abs(ev.getY() - mYDown); 1140 1141 if (Float.compare(absDeltaX, 0f) == 0) return; 1142 1143 float slope = absDeltaY / absDeltaX; 1144 float theta = (float) Math.atan(slope); 1145 1146 if (absDeltaX > mTouchSlop || absDeltaY > mTouchSlop) { 1147 cancelCurrentPageLongPress(); 1148 } 1149 1150 boolean passRightSwipesToCustomContent = 1151 (mTouchDownTime - mCustomContentShowTime) > CUSTOM_CONTENT_GESTURE_DELAY; 1152 1153 boolean swipeInIgnoreDirection = isLayoutRtl() ? deltaX < 0 : deltaX > 0; 1154 boolean onCustomContentScreen = 1155 getScreenIdForPageIndex(getCurrentPage()) == CUSTOM_CONTENT_SCREEN_ID; 1156 if (swipeInIgnoreDirection && onCustomContentScreen && passRightSwipesToCustomContent) { 1157 // Pass swipes to the right to the custom content page. 1158 return; 1159 } 1160 1161 if (onCustomContentScreen && (mCustomContentCallbacks != null) 1162 && !mCustomContentCallbacks.isScrollingAllowed()) { 1163 // Don't allow workspace scrolling if the current custom content screen doesn't allow 1164 // scrolling. 1165 return; 1166 } 1167 1168 if (theta > MAX_SWIPE_ANGLE) { 1169 // Above MAX_SWIPE_ANGLE, we don't want to ever start scrolling the workspace 1170 return; 1171 } else if (theta > START_DAMPING_TOUCH_SLOP_ANGLE) { 1172 // Above START_DAMPING_TOUCH_SLOP_ANGLE and below MAX_SWIPE_ANGLE, we want to 1173 // increase the touch slop to make it harder to begin scrolling the workspace. This 1174 // results in vertically scrolling widgets to more easily. The higher the angle, the 1175 // more we increase touch slop. 1176 theta -= START_DAMPING_TOUCH_SLOP_ANGLE; 1177 float extraRatio = (float) 1178 Math.sqrt((theta / (MAX_SWIPE_ANGLE - START_DAMPING_TOUCH_SLOP_ANGLE))); 1179 super.determineScrollingStart(ev, 1 + TOUCH_SLOP_DAMPING_FACTOR * extraRatio); 1180 } else { 1181 // Below START_DAMPING_TOUCH_SLOP_ANGLE, we don't do anything special 1182 super.determineScrollingStart(ev); 1183 } 1184 } 1185 1186 protected void onPageBeginMoving() { 1187 super.onPageBeginMoving(); 1188 1189 if (isHardwareAccelerated()) { 1190 updateChildrenLayersEnabled(false); 1191 } else { 1192 if (mNextPage != INVALID_PAGE) { 1193 // we're snapping to a particular screen 1194 enableChildrenCache(mCurrentPage, mNextPage); 1195 } else { 1196 // this is when user is actively dragging a particular screen, they might 1197 // swipe it either left or right (but we won't advance by more than one screen) 1198 enableChildrenCache(mCurrentPage - 1, mCurrentPage + 1); 1199 } 1200 } 1201 } 1202 1203 protected void onPageEndMoving() { 1204 super.onPageEndMoving(); 1205 1206 if (isHardwareAccelerated()) { 1207 updateChildrenLayersEnabled(false); 1208 } else { 1209 clearChildrenCache(); 1210 } 1211 1212 if (mDragController.isDragging()) { 1213 if (workspaceInModalState()) { 1214 // If we are in springloaded mode, then force an event to check if the current touch 1215 // is under a new page (to scroll to) 1216 mDragController.forceTouchMove(); 1217 } 1218 } 1219 1220 if (mDelayedResizeRunnable != null) { 1221 mDelayedResizeRunnable.run(); 1222 mDelayedResizeRunnable = null; 1223 } 1224 1225 if (mDelayedSnapToPageRunnable != null) { 1226 mDelayedSnapToPageRunnable.run(); 1227 mDelayedSnapToPageRunnable = null; 1228 } 1229 if (mStripScreensOnPageStopMoving) { 1230 stripEmptyScreens(); 1231 mStripScreensOnPageStopMoving = false; 1232 } 1233 1234 if (mShouldSendPageSettled) { 1235 mLauncherOverlay.onScrollSettled(); 1236 mShouldSendPageSettled = false; 1237 } 1238 } 1239 1240 protected void onScrollInteractionBegin() { 1241 super.onScrollInteractionEnd(); 1242 mScrollInteractionBegan = true; 1243 } 1244 1245 protected void onScrollInteractionEnd() { 1246 super.onScrollInteractionEnd(); 1247 mScrollInteractionBegan = false; 1248 if (mStartedSendingScrollEvents) { 1249 mStartedSendingScrollEvents = false; 1250 mLauncherOverlay.onScrollInteractionEnd(); 1251 } 1252 } 1253 1254 public void setLauncherOverlay(LauncherOverlay overlay) { 1255 mLauncherOverlay = overlay; 1256 } 1257 1258 @Override 1259 protected void overScroll(float amount) { 1260 boolean isRtl = isLayoutRtl(); 1261 boolean shouldOverScroll = (amount <= 0 && (!hasCustomContent() || isRtl)) || 1262 (amount >= 0 && (!hasCustomContent() || !isRtl)); 1263 1264 boolean shouldScrollOverlay = mLauncherOverlay != null && 1265 ((amount <= 0 && !isRtl) || (amount >= 0 && isRtl)); 1266 1267 boolean shouldZeroOverlay = mLauncherOverlay != null && mLastOverlaySroll != 0 && 1268 ((amount >= 0 && !isRtl) || (amount <= 0 && isRtl)); 1269 1270 if (shouldScrollOverlay) { 1271 if (!mStartedSendingScrollEvents && mScrollInteractionBegan) { 1272 mStartedSendingScrollEvents = true; 1273 mLauncherOverlay.onScrollInteractionBegin(); 1274 mShouldSendPageSettled = true; 1275 } 1276 int screenSize = getViewportWidth(); 1277 float f = (amount / screenSize); 1278 1279 int progress = (int) Math.abs((f * 100)); 1280 1281 mLastOverlaySroll = progress; 1282 mLauncherOverlay.onScrollChange(progress, isRtl); 1283 } else if (shouldOverScroll) { 1284 dampedOverScroll(amount); 1285 mOverScrollEffect = acceleratedOverFactor(amount); 1286 } else { 1287 mOverScrollEffect = 0; 1288 } 1289 1290 if (shouldZeroOverlay) { 1291 mLauncherOverlay.onScrollChange(0, isRtl); 1292 } 1293 } 1294 1295 @Override 1296 protected void notifyPageSwitchListener() { 1297 super.notifyPageSwitchListener(); 1298 1299 if (hasCustomContent() && getNextPage() == 0 && !mCustomContentShowing) { 1300 mCustomContentShowing = true; 1301 if (mCustomContentCallbacks != null) { 1302 mCustomContentCallbacks.onShow(false); 1303 mCustomContentShowTime = System.currentTimeMillis(); 1304 } 1305 } else if (hasCustomContent() && getNextPage() != 0 && mCustomContentShowing) { 1306 mCustomContentShowing = false; 1307 if (mCustomContentCallbacks != null) { 1308 mCustomContentCallbacks.onHide(); 1309 } 1310 } 1311 } 1312 1313 protected CustomContentCallbacks getCustomContentCallbacks() { 1314 return mCustomContentCallbacks; 1315 } 1316 1317 protected void setWallpaperDimension() { 1318 new AsyncTask<Void, Void, Void>() { 1319 public Void doInBackground(Void ... args) { 1320 String spKey = LauncherFiles.WALLPAPER_CROP_PREFERENCES_KEY; 1321 SharedPreferences sp = 1322 mLauncher.getSharedPreferences(spKey, Context.MODE_MULTI_PROCESS); 1323 WallpaperUtils.suggestWallpaperDimension(mLauncher.getResources(), 1324 sp, mLauncher.getWindowManager(), mWallpaperManager, 1325 mLauncher.overrideWallpaperDimensions()); 1326 return null; 1327 } 1328 }.executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR, (Void) null); 1329 } 1330 1331 protected void snapToPage(int whichPage, Runnable r) { 1332 snapToPage(whichPage, SLOW_PAGE_SNAP_ANIMATION_DURATION, r); 1333 } 1334 1335 protected void snapToPage(int whichPage, int duration, Runnable r) { 1336 if (mDelayedSnapToPageRunnable != null) { 1337 mDelayedSnapToPageRunnable.run(); 1338 } 1339 mDelayedSnapToPageRunnable = r; 1340 snapToPage(whichPage, duration); 1341 } 1342 1343 public void snapToScreenId(long screenId) { 1344 snapToScreenId(screenId, null); 1345 } 1346 1347 protected void snapToScreenId(long screenId, Runnable r) { 1348 snapToPage(getPageIndexForScreenId(screenId), r); 1349 } 1350 1351 class WallpaperOffsetInterpolator implements Choreographer.FrameCallback { 1352 float mFinalOffset = 0.0f; 1353 float mCurrentOffset = 0.5f; // to force an initial update 1354 boolean mWaitingForUpdate; 1355 Choreographer mChoreographer; 1356 Interpolator mInterpolator; 1357 boolean mAnimating; 1358 long mAnimationStartTime; 1359 float mAnimationStartOffset; 1360 private final int ANIMATION_DURATION = 250; 1361 // Don't use all the wallpaper for parallax until you have at least this many pages 1362 private final int MIN_PARALLAX_PAGE_SPAN = 3; 1363 int mNumScreens; 1364 1365 public WallpaperOffsetInterpolator() { 1366 mChoreographer = Choreographer.getInstance(); 1367 mInterpolator = new DecelerateInterpolator(1.5f); 1368 } 1369 1370 @Override 1371 public void doFrame(long frameTimeNanos) { 1372 updateOffset(false); 1373 } 1374 1375 private void updateOffset(boolean force) { 1376 if (mWaitingForUpdate || force) { 1377 mWaitingForUpdate = false; 1378 if (computeScrollOffset() && mWindowToken != null) { 1379 try { 1380 mWallpaperManager.setWallpaperOffsets(mWindowToken, 1381 mWallpaperOffset.getCurrX(), 0.5f); 1382 setWallpaperOffsetSteps(); 1383 } catch (IllegalArgumentException e) { 1384 Log.e(TAG, "Error updating wallpaper offset: " + e); 1385 } 1386 } 1387 } 1388 } 1389 1390 public boolean computeScrollOffset() { 1391 final float oldOffset = mCurrentOffset; 1392 if (mAnimating) { 1393 long durationSinceAnimation = System.currentTimeMillis() - mAnimationStartTime; 1394 float t0 = durationSinceAnimation / (float) ANIMATION_DURATION; 1395 float t1 = mInterpolator.getInterpolation(t0); 1396 mCurrentOffset = mAnimationStartOffset + 1397 (mFinalOffset - mAnimationStartOffset) * t1; 1398 mAnimating = durationSinceAnimation < ANIMATION_DURATION; 1399 } else { 1400 mCurrentOffset = mFinalOffset; 1401 } 1402 1403 if (Math.abs(mCurrentOffset - mFinalOffset) > 0.0000001f) { 1404 scheduleUpdate(); 1405 } 1406 if (Math.abs(oldOffset - mCurrentOffset) > 0.0000001f) { 1407 return true; 1408 } 1409 return false; 1410 } 1411 1412 private float wallpaperOffsetForCurrentScroll() { 1413 if (getChildCount() <= 1) { 1414 return 0; 1415 } 1416 1417 // Exclude the leftmost page 1418 int emptyExtraPages = numEmptyScreensToIgnore(); 1419 int firstIndex = numCustomPages(); 1420 // Exclude the last extra empty screen (if we have > MIN_PARALLAX_PAGE_SPAN pages) 1421 int lastIndex = getChildCount() - 1 - emptyExtraPages; 1422 if (isLayoutRtl()) { 1423 int temp = firstIndex; 1424 firstIndex = lastIndex; 1425 lastIndex = temp; 1426 } 1427 1428 int firstPageScrollX = getScrollForPage(firstIndex); 1429 int scrollRange = getScrollForPage(lastIndex) - firstPageScrollX; 1430 if (scrollRange == 0) { 1431 return 0; 1432 } else { 1433 // TODO: do different behavior if it's a live wallpaper? 1434 // Sometimes the left parameter of the pages is animated during a layout transition; 1435 // this parameter offsets it to keep the wallpaper from animating as well 1436 int adjustedScroll = 1437 getScrollX() - firstPageScrollX - getLayoutTransitionOffsetForPage(0); 1438 float offset = Math.min(1, adjustedScroll / (float) scrollRange); 1439 offset = Math.max(0, offset); 1440 // Don't use up all the wallpaper parallax until you have at least 1441 // MIN_PARALLAX_PAGE_SPAN pages 1442 int numScrollingPages = getNumScreensExcludingEmptyAndCustom(); 1443 int parallaxPageSpan; 1444 if (mWallpaperIsLiveWallpaper) { 1445 parallaxPageSpan = numScrollingPages - 1; 1446 } else { 1447 parallaxPageSpan = Math.max(MIN_PARALLAX_PAGE_SPAN, numScrollingPages - 1); 1448 } 1449 mNumPagesForWallpaperParallax = parallaxPageSpan; 1450 1451 // On RTL devices, push the wallpaper offset to the right if we don't have enough 1452 // pages (ie if numScrollingPages < MIN_PARALLAX_PAGE_SPAN) 1453 int padding = isLayoutRtl() ? parallaxPageSpan - numScrollingPages + 1 : 0; 1454 return offset * (padding + numScrollingPages - 1) / parallaxPageSpan; 1455 } 1456 } 1457 1458 private int numEmptyScreensToIgnore() { 1459 int numScrollingPages = getChildCount() - numCustomPages(); 1460 if (numScrollingPages >= MIN_PARALLAX_PAGE_SPAN && hasExtraEmptyScreen()) { 1461 return 1; 1462 } else { 1463 return 0; 1464 } 1465 } 1466 1467 private int getNumScreensExcludingEmptyAndCustom() { 1468 int numScrollingPages = getChildCount() - numEmptyScreensToIgnore() - numCustomPages(); 1469 return numScrollingPages; 1470 } 1471 1472 public void syncWithScroll() { 1473 float offset = wallpaperOffsetForCurrentScroll(); 1474 mWallpaperOffset.setFinalX(offset); 1475 updateOffset(true); 1476 } 1477 1478 public float getCurrX() { 1479 return mCurrentOffset; 1480 } 1481 1482 public float getFinalX() { 1483 return mFinalOffset; 1484 } 1485 1486 private void animateToFinal() { 1487 mAnimating = true; 1488 mAnimationStartOffset = mCurrentOffset; 1489 mAnimationStartTime = System.currentTimeMillis(); 1490 } 1491 1492 private void setWallpaperOffsetSteps() { 1493 // Set wallpaper offset steps (1 / (number of screens - 1)) 1494 float xOffset = 1.0f / mNumPagesForWallpaperParallax; 1495 if (xOffset != mLastSetWallpaperOffsetSteps) { 1496 mWallpaperManager.setWallpaperOffsetSteps(xOffset, 1.0f); 1497 mLastSetWallpaperOffsetSteps = xOffset; 1498 } 1499 } 1500 1501 public void setFinalX(float x) { 1502 scheduleUpdate(); 1503 mFinalOffset = Math.max(0f, Math.min(x, 1.0f)); 1504 if (getNumScreensExcludingEmptyAndCustom() != mNumScreens) { 1505 if (mNumScreens > 0) { 1506 // Don't animate if we're going from 0 screens 1507 animateToFinal(); 1508 } 1509 mNumScreens = getNumScreensExcludingEmptyAndCustom(); 1510 } 1511 } 1512 1513 private void scheduleUpdate() { 1514 if (!mWaitingForUpdate) { 1515 mChoreographer.postFrameCallback(this); 1516 mWaitingForUpdate = true; 1517 } 1518 } 1519 1520 public void jumpToFinal() { 1521 mCurrentOffset = mFinalOffset; 1522 } 1523 } 1524 1525 @Override 1526 public void computeScroll() { 1527 super.computeScroll(); 1528 mWallpaperOffset.syncWithScroll(); 1529 } 1530 1531 @Override 1532 public void announceForAccessibility(CharSequence text) { 1533 // Don't announce if apps is on top of us. 1534 if (!mLauncher.isAppsViewVisible()) { 1535 super.announceForAccessibility(text); 1536 } 1537 } 1538 1539 void showOutlines() { 1540 if (!workspaceInModalState() && !mIsSwitchingState) { 1541 if (mChildrenOutlineFadeOutAnimation != null) mChildrenOutlineFadeOutAnimation.cancel(); 1542 if (mChildrenOutlineFadeInAnimation != null) mChildrenOutlineFadeInAnimation.cancel(); 1543 mChildrenOutlineFadeInAnimation = LauncherAnimUtils.ofFloat(this, "childrenOutlineAlpha", 1.0f); 1544 mChildrenOutlineFadeInAnimation.setDuration(CHILDREN_OUTLINE_FADE_IN_DURATION); 1545 mChildrenOutlineFadeInAnimation.start(); 1546 } 1547 } 1548 1549 void hideOutlines() { 1550 if (!workspaceInModalState() && !mIsSwitchingState) { 1551 if (mChildrenOutlineFadeInAnimation != null) mChildrenOutlineFadeInAnimation.cancel(); 1552 if (mChildrenOutlineFadeOutAnimation != null) mChildrenOutlineFadeOutAnimation.cancel(); 1553 mChildrenOutlineFadeOutAnimation = LauncherAnimUtils.ofFloat(this, "childrenOutlineAlpha", 0.0f); 1554 mChildrenOutlineFadeOutAnimation.setDuration(CHILDREN_OUTLINE_FADE_OUT_DURATION); 1555 mChildrenOutlineFadeOutAnimation.setStartDelay(CHILDREN_OUTLINE_FADE_OUT_DELAY); 1556 mChildrenOutlineFadeOutAnimation.start(); 1557 } 1558 } 1559 1560 public void showOutlinesTemporarily() { 1561 if (!mIsPageMoving && !isTouchActive()) { 1562 snapToPage(mCurrentPage); 1563 } 1564 } 1565 1566 public void setChildrenOutlineAlpha(float alpha) { 1567 mChildrenOutlineAlpha = alpha; 1568 for (int i = 0; i < getChildCount(); i++) { 1569 CellLayout cl = (CellLayout) getChildAt(i); 1570 cl.setBackgroundAlpha(alpha); 1571 } 1572 } 1573 1574 public float getChildrenOutlineAlpha() { 1575 return mChildrenOutlineAlpha; 1576 } 1577 1578 private void animateBackgroundGradient(float finalAlpha, boolean animated) { 1579 final DragLayer dragLayer = mLauncher.getDragLayer(); 1580 1581 if (mBackgroundFadeInAnimation != null) { 1582 mBackgroundFadeInAnimation.cancel(); 1583 mBackgroundFadeInAnimation = null; 1584 } 1585 if (mBackgroundFadeOutAnimation != null) { 1586 mBackgroundFadeOutAnimation.cancel(); 1587 mBackgroundFadeOutAnimation = null; 1588 } 1589 float startAlpha = dragLayer.getBackgroundAlpha(); 1590 if (finalAlpha != startAlpha) { 1591 if (animated) { 1592 mBackgroundFadeOutAnimation = 1593 LauncherAnimUtils.ofFloat(this, startAlpha, finalAlpha); 1594 mBackgroundFadeOutAnimation.addUpdateListener(new AnimatorUpdateListener() { 1595 public void onAnimationUpdate(ValueAnimator animation) { 1596 dragLayer.setBackgroundAlpha( 1597 ((Float)animation.getAnimatedValue()).floatValue()); 1598 } 1599 }); 1600 mBackgroundFadeOutAnimation.setInterpolator(new DecelerateInterpolator(1.5f)); 1601 mBackgroundFadeOutAnimation.setDuration(BACKGROUND_FADE_OUT_DURATION); 1602 mBackgroundFadeOutAnimation.start(); 1603 } else { 1604 dragLayer.setBackgroundAlpha(finalAlpha); 1605 } 1606 } 1607 } 1608 1609 float backgroundAlphaInterpolator(float r) { 1610 float pivotA = 0.1f; 1611 float pivotB = 0.4f; 1612 if (r < pivotA) { 1613 return 0; 1614 } else if (r > pivotB) { 1615 return 1.0f; 1616 } else { 1617 return (r - pivotA)/(pivotB - pivotA); 1618 } 1619 } 1620 1621 private void updatePageAlphaValues(int screenCenter) { 1622 boolean isInOverscroll = mOverScrollX < 0 || mOverScrollX > mMaxScrollX; 1623 if (mWorkspaceFadeInAdjacentScreens && 1624 !workspaceInModalState() && 1625 !mIsSwitchingState && 1626 !isInOverscroll) { 1627 for (int i = numCustomPages(); i < getChildCount(); i++) { 1628 CellLayout child = (CellLayout) getChildAt(i); 1629 if (child != null) { 1630 float scrollProgress = getScrollProgress(screenCenter, child, i); 1631 float alpha = 1 - Math.abs(scrollProgress); 1632 child.getShortcutsAndWidgets().setAlpha(alpha); 1633 } 1634 } 1635 } 1636 } 1637 1638 private void setChildrenBackgroundAlphaMultipliers(float a) { 1639 for (int i = 0; i < getChildCount(); i++) { 1640 CellLayout child = (CellLayout) getChildAt(i); 1641 child.setBackgroundAlphaMultiplier(a); 1642 } 1643 } 1644 1645 @TargetApi(Build.VERSION_CODES.LOLLIPOP) 1646 public void enableAccessibleDrag(boolean enable) { 1647 for (int i = 0; i < getChildCount(); i++) { 1648 CellLayout child = (CellLayout) getChildAt(i); 1649 child.enableAccessibleDrag(enable); 1650 } 1651 1652 if (enable) { 1653 // We need to allow our individual children to become click handlers in this case 1654 setOnClickListener(null); 1655 } else { 1656 // Reset our click listener 1657 setOnClickListener(mLauncher); 1658 } 1659 mLauncher.getHotseat().getLayout().enableAccessibleDrag(enable); 1660 } 1661 1662 public boolean hasCustomContent() { 1663 return (mScreenOrder.size() > 0 && mScreenOrder.get(0) == CUSTOM_CONTENT_SCREEN_ID); 1664 } 1665 1666 public int numCustomPages() { 1667 return hasCustomContent() ? 1 : 0; 1668 } 1669 1670 public boolean isOnOrMovingToCustomContent() { 1671 return hasCustomContent() && getNextPage() == 0; 1672 } 1673 1674 private void updateStateForCustomContent(int screenCenter) { 1675 float translationX = 0; 1676 float progress = 0; 1677 if (hasCustomContent()) { 1678 int index = mScreenOrder.indexOf(CUSTOM_CONTENT_SCREEN_ID); 1679 1680 int scrollDelta = getScrollX() - getScrollForPage(index) - 1681 getLayoutTransitionOffsetForPage(index); 1682 float scrollRange = getScrollForPage(index + 1) - getScrollForPage(index); 1683 translationX = scrollRange - scrollDelta; 1684 progress = (scrollRange - scrollDelta) / scrollRange; 1685 1686 if (isLayoutRtl()) { 1687 translationX = Math.min(0, translationX); 1688 } else { 1689 translationX = Math.max(0, translationX); 1690 } 1691 progress = Math.max(0, progress); 1692 } 1693 1694 if (Float.compare(progress, mLastCustomContentScrollProgress) == 0) return; 1695 1696 CellLayout cc = mWorkspaceScreens.get(CUSTOM_CONTENT_SCREEN_ID); 1697 if (progress > 0 && cc.getVisibility() != VISIBLE && !workspaceInModalState()) { 1698 cc.setVisibility(VISIBLE); 1699 } 1700 1701 mLastCustomContentScrollProgress = progress; 1702 1703 // We should only update the drag layer background alpha if we are not in all apps or the 1704 // widgets tray 1705 if (mState == State.NORMAL) { 1706 mLauncher.getDragLayer().setBackgroundAlpha(progress * 0.8f); 1707 } 1708 1709 if (mLauncher.getHotseat() != null) { 1710 mLauncher.getHotseat().setTranslationX(translationX); 1711 } 1712 1713 if (getPageIndicator() != null) { 1714 getPageIndicator().setTranslationX(translationX); 1715 } 1716 1717 if (mCustomContentCallbacks != null) { 1718 mCustomContentCallbacks.onScrollProgressChanged(progress); 1719 } 1720 } 1721 1722 @Override 1723 protected OnClickListener getPageIndicatorClickListener() { 1724 AccessibilityManager am = (AccessibilityManager) 1725 getContext().getSystemService(Context.ACCESSIBILITY_SERVICE); 1726 if (!am.isTouchExplorationEnabled()) { 1727 return null; 1728 } 1729 OnClickListener listener = new OnClickListener() { 1730 @Override 1731 public void onClick(View arg0) { 1732 enterOverviewMode(); 1733 } 1734 }; 1735 return listener; 1736 } 1737 1738 @Override 1739 protected void screenScrolled(int screenCenter) { 1740 final boolean isRtl = isLayoutRtl(); 1741 super.screenScrolled(screenCenter); 1742 1743 updatePageAlphaValues(screenCenter); 1744 updateStateForCustomContent(screenCenter); 1745 enableHwLayersOnVisiblePages(); 1746 1747 boolean shouldOverScroll = mOverScrollX < 0 || mOverScrollX > mMaxScrollX; 1748 1749 if (shouldOverScroll) { 1750 int index = 0; 1751 final int lowerIndex = 0; 1752 final int upperIndex = getChildCount() - 1; 1753 1754 final boolean isLeftPage = mOverScrollX < 0; 1755 index = (!isRtl && isLeftPage) || (isRtl && !isLeftPage) ? lowerIndex : upperIndex; 1756 1757 CellLayout cl = (CellLayout) getChildAt(index); 1758 float effect = Math.abs(mOverScrollEffect); 1759 cl.setOverScrollAmount(Math.abs(effect), isLeftPage); 1760 1761 mOverscrollEffectSet = true; 1762 } else { 1763 if (mOverscrollEffectSet && getChildCount() > 0) { 1764 mOverscrollEffectSet = false; 1765 ((CellLayout) getChildAt(0)).setOverScrollAmount(0, false); 1766 ((CellLayout) getChildAt(getChildCount() - 1)).setOverScrollAmount(0, false); 1767 } 1768 } 1769 } 1770 1771 protected void onAttachedToWindow() { 1772 super.onAttachedToWindow(); 1773 mWindowToken = getWindowToken(); 1774 computeScroll(); 1775 mDragController.setWindowToken(mWindowToken); 1776 } 1777 1778 protected void onDetachedFromWindow() { 1779 super.onDetachedFromWindow(); 1780 mWindowToken = null; 1781 } 1782 1783 protected void onResume() { 1784 if (getPageIndicator() != null) { 1785 // In case accessibility state has changed, we need to perform this on every 1786 // attach to window 1787 OnClickListener listener = getPageIndicatorClickListener(); 1788 if (listener != null) { 1789 getPageIndicator().setOnClickListener(listener); 1790 } 1791 } 1792 AccessibilityManager am = (AccessibilityManager) 1793 getContext().getSystemService(Context.ACCESSIBILITY_SERVICE); 1794 sAccessibilityEnabled = am.isEnabled(); 1795 1796 // Update wallpaper dimensions if they were changed since last onResume 1797 // (we also always set the wallpaper dimensions in the constructor) 1798 if (LauncherAppState.getInstance().hasWallpaperChangedSinceLastCheck()) { 1799 setWallpaperDimension(); 1800 } 1801 mWallpaperIsLiveWallpaper = mWallpaperManager.getWallpaperInfo() != null; 1802 // Force the wallpaper offset steps to be set again, because another app might have changed 1803 // them 1804 mLastSetWallpaperOffsetSteps = 0f; 1805 } 1806 1807 @Override 1808 protected void onLayout(boolean changed, int left, int top, int right, int bottom) { 1809 if (mFirstLayout && mCurrentPage >= 0 && mCurrentPage < getChildCount()) { 1810 mWallpaperOffset.syncWithScroll(); 1811 mWallpaperOffset.jumpToFinal(); 1812 } 1813 super.onLayout(changed, left, top, right, bottom); 1814 } 1815 1816 @Override 1817 protected void onDraw(Canvas canvas) { 1818 super.onDraw(canvas); 1819 1820 // Call back to LauncherModel to finish binding after the first draw 1821 post(mBindPages); 1822 } 1823 1824 @Override 1825 protected boolean onRequestFocusInDescendants(int direction, Rect previouslyFocusedRect) { 1826 if (!mLauncher.isAppsViewVisible()) { 1827 final Folder openFolder = getOpenFolder(); 1828 if (openFolder != null) { 1829 return openFolder.requestFocus(direction, previouslyFocusedRect); 1830 } else { 1831 return super.onRequestFocusInDescendants(direction, previouslyFocusedRect); 1832 } 1833 } 1834 return false; 1835 } 1836 1837 @Override 1838 public int getDescendantFocusability() { 1839 if (workspaceInModalState()) { 1840 return ViewGroup.FOCUS_BLOCK_DESCENDANTS; 1841 } 1842 return super.getDescendantFocusability(); 1843 } 1844 1845 @Override 1846 public void addFocusables(ArrayList<View> views, int direction, int focusableMode) { 1847 if (!mLauncher.isAppsViewVisible()) { 1848 final Folder openFolder = getOpenFolder(); 1849 if (openFolder != null) { 1850 openFolder.addFocusables(views, direction); 1851 } else { 1852 super.addFocusables(views, direction, focusableMode); 1853 } 1854 } 1855 } 1856 1857 public boolean workspaceInModalState() { 1858 return mState != State.NORMAL; 1859 } 1860 1861 void enableChildrenCache(int fromPage, int toPage) { 1862 if (fromPage > toPage) { 1863 final int temp = fromPage; 1864 fromPage = toPage; 1865 toPage = temp; 1866 } 1867 1868 final int screenCount = getChildCount(); 1869 1870 fromPage = Math.max(fromPage, 0); 1871 toPage = Math.min(toPage, screenCount - 1); 1872 1873 for (int i = fromPage; i <= toPage; i++) { 1874 final CellLayout layout = (CellLayout) getChildAt(i); 1875 layout.setChildrenDrawnWithCacheEnabled(true); 1876 layout.setChildrenDrawingCacheEnabled(true); 1877 } 1878 } 1879 1880 void clearChildrenCache() { 1881 final int screenCount = getChildCount(); 1882 for (int i = 0; i < screenCount; i++) { 1883 final CellLayout layout = (CellLayout) getChildAt(i); 1884 layout.setChildrenDrawnWithCacheEnabled(false); 1885 // In software mode, we don't want the items to continue to be drawn into bitmaps 1886 if (!isHardwareAccelerated()) { 1887 layout.setChildrenDrawingCacheEnabled(false); 1888 } 1889 } 1890 } 1891 1892 @Thunk void updateChildrenLayersEnabled(boolean force) { 1893 boolean small = mState == State.OVERVIEW || mIsSwitchingState; 1894 boolean enableChildrenLayers = force || small || mAnimatingViewIntoPlace || isPageMoving(); 1895 1896 if (enableChildrenLayers != mChildrenLayersEnabled) { 1897 mChildrenLayersEnabled = enableChildrenLayers; 1898 if (mChildrenLayersEnabled) { 1899 enableHwLayersOnVisiblePages(); 1900 } else { 1901 for (int i = 0; i < getPageCount(); i++) { 1902 final CellLayout cl = (CellLayout) getChildAt(i); 1903 cl.enableHardwareLayer(false); 1904 } 1905 } 1906 } 1907 } 1908 1909 private void enableHwLayersOnVisiblePages() { 1910 if (mChildrenLayersEnabled) { 1911 final int screenCount = getChildCount(); 1912 getVisiblePages(mTempVisiblePagesRange); 1913 int leftScreen = mTempVisiblePagesRange[0]; 1914 int rightScreen = mTempVisiblePagesRange[1]; 1915 if (leftScreen == rightScreen) { 1916 // make sure we're caching at least two pages always 1917 if (rightScreen < screenCount - 1) { 1918 rightScreen++; 1919 } else if (leftScreen > 0) { 1920 leftScreen--; 1921 } 1922 } 1923 1924 final CellLayout customScreen = mWorkspaceScreens.get(CUSTOM_CONTENT_SCREEN_ID); 1925 for (int i = 0; i < screenCount; i++) { 1926 final CellLayout layout = (CellLayout) getPageAt(i); 1927 1928 // enable layers between left and right screen inclusive, except for the 1929 // customScreen, which may animate its content during transitions. 1930 boolean enableLayer = layout != customScreen && 1931 leftScreen <= i && i <= rightScreen && shouldDrawChild(layout); 1932 layout.enableHardwareLayer(enableLayer); 1933 } 1934 } 1935 } 1936 1937 public void buildPageHardwareLayers() { 1938 // force layers to be enabled just for the call to buildLayer 1939 updateChildrenLayersEnabled(true); 1940 if (getWindowToken() != null) { 1941 final int childCount = getChildCount(); 1942 for (int i = 0; i < childCount; i++) { 1943 CellLayout cl = (CellLayout) getChildAt(i); 1944 cl.buildHardwareLayer(); 1945 } 1946 } 1947 updateChildrenLayersEnabled(false); 1948 } 1949 1950 protected void onWallpaperTap(MotionEvent ev) { 1951 final int[] position = mTempCell; 1952 getLocationOnScreen(position); 1953 1954 int pointerIndex = ev.getActionIndex(); 1955 position[0] += (int) ev.getX(pointerIndex); 1956 position[1] += (int) ev.getY(pointerIndex); 1957 1958 mWallpaperManager.sendWallpaperCommand(getWindowToken(), 1959 ev.getAction() == MotionEvent.ACTION_UP 1960 ? WallpaperManager.COMMAND_TAP : WallpaperManager.COMMAND_SECONDARY_TAP, 1961 position[0], position[1], 0, null); 1962 } 1963 1964 /* 1965 * This interpolator emulates the rate at which the perceived scale of an object changes 1966 * as its distance from a camera increases. When this interpolator is applied to a scale 1967 * animation on a view, it evokes the sense that the object is shrinking due to moving away 1968 * from the camera. 1969 */ 1970 static class ZInterpolator implements TimeInterpolator { 1971 private float focalLength; 1972 1973 public ZInterpolator(float foc) { 1974 focalLength = foc; 1975 } 1976 1977 public float getInterpolation(float input) { 1978 return (1.0f - focalLength / (focalLength + input)) / 1979 (1.0f - focalLength / (focalLength + 1.0f)); 1980 } 1981 } 1982 1983 /* 1984 * The exact reverse of ZInterpolator. 1985 */ 1986 static class InverseZInterpolator implements TimeInterpolator { 1987 private ZInterpolator zInterpolator; 1988 public InverseZInterpolator(float foc) { 1989 zInterpolator = new ZInterpolator(foc); 1990 } 1991 public float getInterpolation(float input) { 1992 return 1 - zInterpolator.getInterpolation(1 - input); 1993 } 1994 } 1995 1996 /* 1997 * ZInterpolator compounded with an ease-out. 1998 */ 1999 static class ZoomOutInterpolator implements TimeInterpolator { 2000 private final DecelerateInterpolator decelerate = new DecelerateInterpolator(0.75f); 2001 private final ZInterpolator zInterpolator = new ZInterpolator(0.13f); 2002 2003 public float getInterpolation(float input) { 2004 return decelerate.getInterpolation(zInterpolator.getInterpolation(input)); 2005 } 2006 } 2007 2008 /* 2009 * InvereZInterpolator compounded with an ease-out. 2010 */ 2011 static class ZoomInInterpolator implements TimeInterpolator { 2012 private final InverseZInterpolator inverseZInterpolator = new InverseZInterpolator(0.35f); 2013 private final DecelerateInterpolator decelerate = new DecelerateInterpolator(3.0f); 2014 2015 public float getInterpolation(float input) { 2016 return decelerate.getInterpolation(inverseZInterpolator.getInterpolation(input)); 2017 } 2018 } 2019 2020 private final ZoomInInterpolator mZoomInInterpolator = new ZoomInInterpolator(); 2021 2022 /* 2023 * 2024 * We call these methods (onDragStartedWithItemSpans/onDragStartedWithSize) whenever we 2025 * start a drag in Launcher, regardless of whether the drag has ever entered the Workspace 2026 * 2027 * These methods mark the appropriate pages as accepting drops (which alters their visual 2028 * appearance). 2029 * 2030 */ 2031 private static Rect getDrawableBounds(Drawable d) { 2032 Rect bounds = new Rect(); 2033 d.copyBounds(bounds); 2034 if (bounds.width() == 0 || bounds.height() == 0) { 2035 bounds.set(0, 0, d.getIntrinsicWidth(), d.getIntrinsicHeight()); 2036 } else { 2037 bounds.offsetTo(0, 0); 2038 } 2039 if (d instanceof PreloadIconDrawable) { 2040 int inset = -((PreloadIconDrawable) d).getOutset(); 2041 bounds.inset(inset, inset); 2042 } 2043 return bounds; 2044 } 2045 2046 public void onExternalDragStartedWithItem(View v) { 2047 // Compose a drag bitmap with the view scaled to the icon size 2048 LauncherAppState app = LauncherAppState.getInstance(); 2049 DeviceProfile grid = app.getDynamicGrid().getDeviceProfile(); 2050 int iconSize = grid.iconSizePx; 2051 int bmpWidth = v.getMeasuredWidth(); 2052 int bmpHeight = v.getMeasuredHeight(); 2053 2054 // If this is a text view, use its drawable instead 2055 if (v instanceof TextView) { 2056 Drawable d = getTextViewIcon((TextView) v); 2057 Rect bounds = getDrawableBounds(d); 2058 bmpWidth = bounds.width(); 2059 bmpHeight = bounds.height(); 2060 } 2061 2062 // Compose the bitmap to create the icon from 2063 Bitmap b = Bitmap.createBitmap(bmpWidth, bmpHeight, 2064 Bitmap.Config.ARGB_8888); 2065 mCanvas.setBitmap(b); 2066 drawDragView(v, mCanvas, 0); 2067 mCanvas.setBitmap(null); 2068 2069 // The outline is used to visualize where the item will land if dropped 2070 mDragOutline = createDragOutline(b, DRAG_BITMAP_PADDING, iconSize, iconSize, true); 2071 } 2072 2073 public void onDragStartedWithItem(PendingAddItemInfo info, Bitmap b, boolean clipAlpha) { 2074 int[] size = estimateItemSize(info, false); 2075 2076 // The outline is used to visualize where the item will land if dropped 2077 mDragOutline = createDragOutline(b, DRAG_BITMAP_PADDING, size[0], size[1], clipAlpha); 2078 } 2079 2080 public void exitWidgetResizeMode() { 2081 DragLayer dragLayer = mLauncher.getDragLayer(); 2082 dragLayer.clearAllResizeFrames(); 2083 } 2084 2085 private void initAnimationArrays() { 2086 final int childCount = getChildCount(); 2087 if (mLastChildCount == childCount) return; 2088 2089 mOldBackgroundAlphas = new float[childCount]; 2090 mOldAlphas = new float[childCount]; 2091 mNewBackgroundAlphas = new float[childCount]; 2092 mNewAlphas = new float[childCount]; 2093 } 2094 2095 Animator getChangeStateAnimation(final State state, boolean animated, 2096 HashMap<View, Integer> layerViews) { 2097 return getChangeStateAnimation(state, animated, 0, -1, layerViews); 2098 } 2099 2100 @Override 2101 protected void getFreeScrollPageRange(int[] range) { 2102 getOverviewModePages(range); 2103 } 2104 2105 private void getOverviewModePages(int[] range) { 2106 int start = numCustomPages(); 2107 int end = getChildCount() - 1; 2108 2109 range[0] = Math.max(0, Math.min(start, getChildCount() - 1)); 2110 range[1] = Math.max(0, end); 2111 } 2112 2113 protected void onStartReordering() { 2114 super.onStartReordering(); 2115 showOutlines(); 2116 // Reordering handles its own animations, disable the automatic ones. 2117 disableLayoutTransitions(); 2118 } 2119 2120 protected void onEndReordering() { 2121 super.onEndReordering(); 2122 2123 if (mLauncher.isWorkspaceLoading()) { 2124 // Invalid and dangerous operation if workspace is loading 2125 return; 2126 } 2127 2128 hideOutlines(); 2129 mScreenOrder.clear(); 2130 int count = getChildCount(); 2131 for (int i = 0; i < count; i++) { 2132 CellLayout cl = ((CellLayout) getChildAt(i)); 2133 mScreenOrder.add(getIdForScreen(cl)); 2134 } 2135 2136 mLauncher.getModel().updateWorkspaceScreenOrder(mLauncher, mScreenOrder); 2137 2138 // Re-enable auto layout transitions for page deletion. 2139 enableLayoutTransitions(); 2140 } 2141 2142 public boolean isInOverviewMode() { 2143 return mState == State.OVERVIEW; 2144 } 2145 2146 public boolean enterOverviewMode() { 2147 if (mTouchState != TOUCH_STATE_REST) { 2148 return false; 2149 } 2150 enableOverviewMode(true, -1, true); 2151 return true; 2152 } 2153 2154 public void exitOverviewMode(boolean animated) { 2155 exitOverviewMode(-1, animated); 2156 } 2157 2158 public void exitOverviewMode(int snapPage, boolean animated) { 2159 enableOverviewMode(false, snapPage, animated); 2160 } 2161 2162 private void enableOverviewMode(boolean enable, int snapPage, boolean animated) { 2163 State finalState = Workspace.State.OVERVIEW; 2164 if (!enable) { 2165 finalState = Workspace.State.NORMAL; 2166 } 2167 2168 Animator workspaceAnim = getChangeStateAnimation(finalState, animated, 0, snapPage); 2169 if (workspaceAnim != null) { 2170 onTransitionPrepare(); 2171 workspaceAnim.addListener(new AnimatorListenerAdapter() { 2172 @Override 2173 public void onAnimationEnd(Animator arg0) { 2174 onTransitionEnd(); 2175 } 2176 }); 2177 workspaceAnim.start(); 2178 } 2179 } 2180 2181 int getOverviewModeTranslationY() { 2182 LauncherAppState app = LauncherAppState.getInstance(); 2183 DeviceProfile grid = app.getDynamicGrid().getDeviceProfile(); 2184 Rect overviewBar = grid.getOverviewModeButtonBarRect(); 2185 2186 int availableHeight = getViewportHeight(); 2187 int scaledHeight = (int) (mOverviewModeShrinkFactor * getNormalChildHeight()); 2188 int offsetFromTopEdge = (availableHeight - scaledHeight) / 2; 2189 int offsetToCenterInOverview = (availableHeight - mInsets.top - overviewBar.height() 2190 - scaledHeight) / 2; 2191 2192 return -offsetFromTopEdge + mInsets.top + offsetToCenterInOverview; 2193 } 2194 2195 public void updateInteractionForState() { 2196 if (mState != State.NORMAL) { 2197 mLauncher.onInteractionBegin(); 2198 } else { 2199 mLauncher.onInteractionEnd(); 2200 } 2201 } 2202 2203 private void setState(State state) { 2204 mState = state; 2205 updateInteractionForState(); 2206 updateAccessibilityFlags(); 2207 } 2208 2209 State getState() { 2210 return mState; 2211 } 2212 2213 private void updateAccessibilityFlags() { 2214 int accessible = mState == State.NORMAL ? 2215 IMPORTANT_FOR_ACCESSIBILITY_NO : 2216 IMPORTANT_FOR_ACCESSIBILITY_NO_HIDE_DESCENDANTS; 2217 setImportantForAccessibility(accessible); 2218 } 2219 2220 private static final int HIDE_WORKSPACE_DURATION = 100; 2221 2222 Animator getChangeStateAnimation(final State state, boolean animated, int delay, int snapPage) { 2223 return getChangeStateAnimation(state, animated, delay, snapPage, null); 2224 } 2225 2226 Animator getChangeStateAnimation(final State state, boolean animated, int delay, int snapPage, 2227 HashMap<View, Integer> layerViews) { 2228 if (mState == state) { 2229 return null; 2230 } 2231 2232 // Initialize animation arrays for the first time if necessary 2233 initAnimationArrays(); 2234 2235 AnimatorSet anim = animated ? LauncherAnimUtils.createAnimatorSet() : null; 2236 2237 // We only want a single instance of a workspace animation to be running at once, so 2238 // we cancel any incomplete transition. 2239 if (mStateAnimator != null) { 2240 mStateAnimator.cancel(); 2241 } 2242 mStateAnimator = anim; 2243 2244 final State oldState = mState; 2245 final boolean oldStateIsNormal = (oldState == State.NORMAL); 2246 final boolean oldStateIsSpringLoaded = (oldState == State.SPRING_LOADED); 2247 final boolean oldStateIsNormalHidden = (oldState == State.NORMAL_HIDDEN); 2248 final boolean oldStateIsOverviewHidden = (oldState == State.OVERVIEW_HIDDEN); 2249 final boolean oldStateIsOverview = (oldState == State.OVERVIEW); 2250 setState(state); 2251 final boolean stateIsNormal = (state == State.NORMAL); 2252 final boolean stateIsSpringLoaded = (state == State.SPRING_LOADED); 2253 final boolean stateIsNormalHidden = (state == State.NORMAL_HIDDEN); 2254 final boolean stateIsOverviewHidden = (state == State.OVERVIEW_HIDDEN); 2255 final boolean stateIsOverview = (state == State.OVERVIEW); 2256 float finalBackgroundAlpha = (stateIsSpringLoaded || stateIsOverview) ? 1.0f : 0f; 2257 float finalHotseatAndPageIndicatorAlpha = (stateIsNormal || stateIsSpringLoaded) ? 1f : 0f; 2258 float finalOverviewPanelAlpha = stateIsOverview ? 1f : 0f; 2259 // We keep the search bar visible on the workspace and in AllApps now 2260 float finalSearchBarAlpha = (stateIsNormal || stateIsNormalHidden) ? 1f : 0f; 2261 float finalWorkspaceTranslationY = stateIsOverview || stateIsOverviewHidden ? 2262 getOverviewModeTranslationY() : 0; 2263 2264 boolean workspaceToAllApps = (oldStateIsNormal && stateIsNormalHidden); 2265 boolean overviewToAllApps = (oldStateIsOverview && stateIsOverviewHidden); 2266 boolean allAppsToWorkspace = (stateIsNormalHidden && stateIsNormal); 2267 boolean workspaceToOverview = (oldStateIsNormal && stateIsOverview); 2268 boolean overviewToWorkspace = (oldStateIsOverview && stateIsNormal); 2269 2270 mNewScale = 1.0f; 2271 2272 if (oldStateIsOverview) { 2273 disableFreeScroll(); 2274 } else if (stateIsOverview) { 2275 enableFreeScroll(); 2276 } 2277 2278 if (state != State.NORMAL) { 2279 if (stateIsSpringLoaded) { 2280 mNewScale = mSpringLoadedShrinkFactor; 2281 } else if (stateIsOverview || stateIsOverviewHidden) { 2282 mNewScale = mOverviewModeShrinkFactor; 2283 } 2284 } 2285 2286 final int duration; 2287 if (workspaceToAllApps || overviewToAllApps) { 2288 duration = HIDE_WORKSPACE_DURATION; //getResources().getInteger(R.integer.config_workspaceUnshrinkTime); 2289 } else if (workspaceToOverview || overviewToWorkspace) { 2290 duration = getResources().getInteger(R.integer.config_overviewTransitionTime); 2291 } else { 2292 duration = getResources().getInteger(R.integer.config_appsCustomizeWorkspaceShrinkTime); 2293 } 2294 2295 if (snapPage == -1) { 2296 snapPage = getPageNearestToCenterOfScreen(); 2297 } 2298 snapToPage(snapPage, duration, mZoomInInterpolator); 2299 2300 for (int i = 0; i < getChildCount(); i++) { 2301 final CellLayout cl = (CellLayout) getChildAt(i); 2302 boolean isCurrentPage = (i == snapPage); 2303 float initialAlpha = cl.getShortcutsAndWidgets().getAlpha(); 2304 float finalAlpha; 2305 if (stateIsNormalHidden || stateIsOverviewHidden) { 2306 finalAlpha = 0f; 2307 } else if (stateIsNormal && mWorkspaceFadeInAdjacentScreens) { 2308 finalAlpha = (i == snapPage || i < numCustomPages()) ? 1f : 0f; 2309 } else { 2310 finalAlpha = 1f; 2311 } 2312 2313 // If we are animating to/from the small state, then hide the side pages and fade the 2314 // current page in 2315 if (!mIsSwitchingState) { 2316 if (workspaceToAllApps || allAppsToWorkspace) { 2317 if (allAppsToWorkspace && isCurrentPage) { 2318 initialAlpha = 0f; 2319 } else if (!isCurrentPage) { 2320 initialAlpha = finalAlpha = 0f; 2321 } 2322 cl.setShortcutAndWidgetAlpha(initialAlpha); 2323 } 2324 } 2325 2326 mOldAlphas[i] = initialAlpha; 2327 mNewAlphas[i] = finalAlpha; 2328 if (animated) { 2329 mOldBackgroundAlphas[i] = cl.getBackgroundAlpha(); 2330 mNewBackgroundAlphas[i] = finalBackgroundAlpha; 2331 } else { 2332 cl.setBackgroundAlpha(finalBackgroundAlpha); 2333 cl.setShortcutAndWidgetAlpha(finalAlpha); 2334 } 2335 } 2336 2337 final View searchBar = mLauncher.getOrCreateQsbBar(); 2338 final View overviewPanel = mLauncher.getOverviewPanel(); 2339 final View hotseat = mLauncher.getHotseat(); 2340 final View pageIndicator = getPageIndicator(); 2341 if (animated) { 2342 LauncherViewPropertyAnimator scale = new LauncherViewPropertyAnimator(this); 2343 scale.scaleX(mNewScale) 2344 .scaleY(mNewScale) 2345 .translationY(finalWorkspaceTranslationY) 2346 .setDuration(duration) 2347 .setInterpolator(mZoomInInterpolator); 2348 anim.play(scale); 2349 for (int index = 0; index < getChildCount(); index++) { 2350 final int i = index; 2351 final CellLayout cl = (CellLayout) getChildAt(i); 2352 float currentAlpha = cl.getShortcutsAndWidgets().getAlpha(); 2353 if (mOldAlphas[i] == 0 && mNewAlphas[i] == 0) { 2354 cl.setBackgroundAlpha(mNewBackgroundAlphas[i]); 2355 cl.setShortcutAndWidgetAlpha(mNewAlphas[i]); 2356 } else { 2357 if (layerViews != null) { 2358 layerViews.put(cl, LauncherStateTransitionAnimation.BUILD_LAYER); 2359 } 2360 if (mOldAlphas[i] != mNewAlphas[i] || currentAlpha != mNewAlphas[i]) { 2361 LauncherViewPropertyAnimator alphaAnim = 2362 new LauncherViewPropertyAnimator(cl.getShortcutsAndWidgets()); 2363 alphaAnim.alpha(mNewAlphas[i]) 2364 .setDuration(duration) 2365 .setInterpolator(mZoomInInterpolator); 2366 anim.play(alphaAnim); 2367 } 2368 if (mOldBackgroundAlphas[i] != 0 || 2369 mNewBackgroundAlphas[i] != 0) { 2370 ValueAnimator bgAnim = 2371 LauncherAnimUtils.ofFloat(cl, 0f, 1f); 2372 bgAnim.setInterpolator(mZoomInInterpolator); 2373 bgAnim.setDuration(duration); 2374 bgAnim.addUpdateListener(new LauncherAnimatorUpdateListener() { 2375 public void onAnimationUpdate(float a, float b) { 2376 cl.setBackgroundAlpha( 2377 a * mOldBackgroundAlphas[i] + 2378 b * mNewBackgroundAlphas[i]); 2379 } 2380 }); 2381 anim.play(bgAnim); 2382 } 2383 } 2384 } 2385 Animator pageIndicatorAlpha = null; 2386 if (pageIndicator != null) { 2387 pageIndicatorAlpha = new LauncherViewPropertyAnimator(pageIndicator) 2388 .alpha(finalHotseatAndPageIndicatorAlpha).withLayer(); 2389 pageIndicatorAlpha.addListener(new AlphaUpdateListener(pageIndicator)); 2390 } else { 2391 // create a dummy animation so we don't need to do null checks later 2392 pageIndicatorAlpha = ValueAnimator.ofFloat(0, 0); 2393 } 2394 2395 LauncherViewPropertyAnimator hotseatAlpha = new LauncherViewPropertyAnimator(hotseat) 2396 .alpha(finalHotseatAndPageIndicatorAlpha); 2397 hotseatAlpha.addListener(new AlphaUpdateListener(hotseat)); 2398 2399 LauncherViewPropertyAnimator overviewPanelAlpha = 2400 new LauncherViewPropertyAnimator(overviewPanel).alpha(finalOverviewPanelAlpha); 2401 overviewPanelAlpha.addListener(new AlphaUpdateListener(overviewPanel)); 2402 2403 // For animation optimations, we may need to provide the Launcher transition 2404 // with a set of views on which to force build layers in certain scenarios. 2405 hotseat.setLayerType(View.LAYER_TYPE_HARDWARE, null); 2406 overviewPanel.setLayerType(View.LAYER_TYPE_HARDWARE, null); 2407 if (layerViews != null) { 2408 // If layerViews is not null, we add these views, and indicate that 2409 // the caller can manage layer state. 2410 layerViews.put(hotseat, LauncherStateTransitionAnimation.BUILD_AND_SET_LAYER); 2411 layerViews.put(overviewPanel, LauncherStateTransitionAnimation.BUILD_AND_SET_LAYER); 2412 } else { 2413 // Otherwise let the animator handle layer management. 2414 hotseatAlpha.withLayer(); 2415 overviewPanelAlpha.withLayer(); 2416 } 2417 2418 if (workspaceToOverview) { 2419 pageIndicatorAlpha.setInterpolator(new DecelerateInterpolator(2)); 2420 hotseatAlpha.setInterpolator(new DecelerateInterpolator(2)); 2421 overviewPanelAlpha.setInterpolator(null); 2422 } else if (overviewToWorkspace) { 2423 pageIndicatorAlpha.setInterpolator(null); 2424 hotseatAlpha.setInterpolator(null); 2425 overviewPanelAlpha.setInterpolator(new DecelerateInterpolator(2)); 2426 } 2427 2428 overviewPanelAlpha.setDuration(duration); 2429 pageIndicatorAlpha.setDuration(duration); 2430 hotseatAlpha.setDuration(duration); 2431 2432 if (searchBar != null) { 2433 LauncherViewPropertyAnimator searchBarAlpha = new LauncherViewPropertyAnimator(searchBar) 2434 .alpha(finalSearchBarAlpha); 2435 searchBarAlpha.addListener(new AlphaUpdateListener(searchBar)); 2436 searchBar.setLayerType(View.LAYER_TYPE_HARDWARE, null); 2437 if (layerViews != null) { 2438 // If layerViews is not null, we add these views, and indicate that 2439 // the caller can manage layer state. 2440 layerViews.put(searchBar, LauncherStateTransitionAnimation.BUILD_AND_SET_LAYER); 2441 } else { 2442 // Otherwise let the animator handle layer management. 2443 searchBarAlpha.withLayer(); 2444 } 2445 searchBarAlpha.setDuration(duration); 2446 anim.play(searchBarAlpha); 2447 } 2448 2449 anim.play(overviewPanelAlpha); 2450 anim.play(hotseatAlpha); 2451 anim.play(pageIndicatorAlpha); 2452 anim.setStartDelay(delay); 2453 anim.addListener(new AnimatorListenerAdapter() { 2454 @Override 2455 public void onAnimationEnd(Animator animation) { 2456 mStateAnimator = null; 2457 } 2458 }); 2459 } else { 2460 overviewPanel.setAlpha(finalOverviewPanelAlpha); 2461 AlphaUpdateListener.updateVisibility(overviewPanel); 2462 hotseat.setAlpha(finalHotseatAndPageIndicatorAlpha); 2463 AlphaUpdateListener.updateVisibility(hotseat); 2464 if (pageIndicator != null) { 2465 pageIndicator.setAlpha(finalHotseatAndPageIndicatorAlpha); 2466 AlphaUpdateListener.updateVisibility(pageIndicator); 2467 } 2468 if (searchBar != null) { 2469 searchBar.setAlpha(finalSearchBarAlpha); 2470 AlphaUpdateListener.updateVisibility(searchBar); 2471 } 2472 updateCustomContentVisibility(); 2473 setScaleX(mNewScale); 2474 setScaleY(mNewScale); 2475 setTranslationY(finalWorkspaceTranslationY); 2476 } 2477 2478 if (stateIsNormal) { 2479 animateBackgroundGradient(0f, animated); 2480 } else { 2481 animateBackgroundGradient(getResources().getInteger( 2482 R.integer.config_workspaceScrimAlpha) / 100f, animated); 2483 } 2484 return anim; 2485 } 2486 2487 static class AlphaUpdateListener implements AnimatorUpdateListener, AnimatorListener { 2488 View view; 2489 public AlphaUpdateListener(View v) { 2490 view = v; 2491 } 2492 2493 @Override 2494 public void onAnimationUpdate(ValueAnimator arg0) { 2495 updateVisibility(view); 2496 } 2497 2498 public static void updateVisibility(View view) { 2499 // We want to avoid the extra layout pass by setting the views to GONE unless 2500 // accessibility is on, in which case not setting them to GONE causes a glitch. 2501 int invisibleState = sAccessibilityEnabled ? GONE : INVISIBLE; 2502 if (view.getAlpha() < ALPHA_CUTOFF_THRESHOLD && view.getVisibility() != invisibleState) { 2503 view.setVisibility(invisibleState); 2504 } else if (view.getAlpha() > ALPHA_CUTOFF_THRESHOLD 2505 && view.getVisibility() != VISIBLE) { 2506 view.setVisibility(VISIBLE); 2507 } 2508 } 2509 2510 @Override 2511 public void onAnimationCancel(Animator arg0) { 2512 } 2513 2514 @Override 2515 public void onAnimationEnd(Animator arg0) { 2516 updateVisibility(view); 2517 } 2518 2519 @Override 2520 public void onAnimationRepeat(Animator arg0) { 2521 } 2522 2523 @Override 2524 public void onAnimationStart(Animator arg0) { 2525 // We want the views to be visible for animation, so fade-in/out is visible 2526 view.setVisibility(VISIBLE); 2527 } 2528 } 2529 2530 @Override 2531 public void onLauncherTransitionPrepare(Launcher l, boolean animated, boolean toWorkspace) { 2532 onTransitionPrepare(); 2533 } 2534 2535 @Override 2536 public void onLauncherTransitionStart(Launcher l, boolean animated, boolean toWorkspace) { 2537 } 2538 2539 @Override 2540 public void onLauncherTransitionStep(Launcher l, float t) { 2541 mTransitionProgress = t; 2542 } 2543 2544 @Override 2545 public void onLauncherTransitionEnd(Launcher l, boolean animated, boolean toWorkspace) { 2546 onTransitionEnd(); 2547 } 2548 2549 private void onTransitionPrepare() { 2550 mIsSwitchingState = true; 2551 2552 // Invalidate here to ensure that the pages are rendered during the state change transition. 2553 invalidate(); 2554 2555 updateChildrenLayersEnabled(false); 2556 hideCustomContentIfNecessary(); 2557 } 2558 2559 void updateCustomContentVisibility() { 2560 int visibility = mState == Workspace.State.NORMAL ? VISIBLE : INVISIBLE; 2561 if (hasCustomContent()) { 2562 mWorkspaceScreens.get(CUSTOM_CONTENT_SCREEN_ID).setVisibility(visibility); 2563 } 2564 } 2565 2566 void showCustomContentIfNecessary() { 2567 boolean show = mState == Workspace.State.NORMAL; 2568 if (show && hasCustomContent()) { 2569 mWorkspaceScreens.get(CUSTOM_CONTENT_SCREEN_ID).setVisibility(VISIBLE); 2570 } 2571 } 2572 2573 void hideCustomContentIfNecessary() { 2574 boolean hide = mState != Workspace.State.NORMAL; 2575 if (hide && hasCustomContent()) { 2576 disableLayoutTransitions(); 2577 mWorkspaceScreens.get(CUSTOM_CONTENT_SCREEN_ID).setVisibility(INVISIBLE); 2578 enableLayoutTransitions(); 2579 } 2580 } 2581 2582 @Thunk void onTransitionEnd() { 2583 mIsSwitchingState = false; 2584 updateChildrenLayersEnabled(false); 2585 showCustomContentIfNecessary(); 2586 } 2587 2588 @Override 2589 public View getContent() { 2590 return this; 2591 } 2592 2593 /** 2594 * Returns the drawable for the given text view. 2595 */ 2596 public static Drawable getTextViewIcon(TextView tv) { 2597 final Drawable[] drawables = tv.getCompoundDrawables(); 2598 for (int i = 0; i < drawables.length; i++) { 2599 if (drawables[i] != null) { 2600 return drawables[i]; 2601 } 2602 } 2603 return null; 2604 } 2605 2606 /** 2607 * Draw the View v into the given Canvas. 2608 * 2609 * @param v the view to draw 2610 * @param destCanvas the canvas to draw on 2611 * @param padding the horizontal and vertical padding to use when drawing 2612 */ 2613 private static void drawDragView(View v, Canvas destCanvas, int padding) { 2614 final Rect clipRect = sTempRect; 2615 v.getDrawingRect(clipRect); 2616 2617 boolean textVisible = false; 2618 2619 destCanvas.save(); 2620 if (v instanceof TextView) { 2621 Drawable d = getTextViewIcon((TextView) v); 2622 Rect bounds = getDrawableBounds(d); 2623 clipRect.set(0, 0, bounds.width() + padding, bounds.height() + padding); 2624 destCanvas.translate(padding / 2 - bounds.left, padding / 2 - bounds.top); 2625 d.draw(destCanvas); 2626 } else { 2627 if (v instanceof FolderIcon) { 2628 // For FolderIcons the text can bleed into the icon area, and so we need to 2629 // hide the text completely (which can't be achieved by clipping). 2630 if (((FolderIcon) v).getTextVisible()) { 2631 ((FolderIcon) v).setTextVisible(false); 2632 textVisible = true; 2633 } 2634 } 2635 destCanvas.translate(-v.getScrollX() + padding / 2, -v.getScrollY() + padding / 2); 2636 destCanvas.clipRect(clipRect, Op.REPLACE); 2637 v.draw(destCanvas); 2638 2639 // Restore text visibility of FolderIcon if necessary 2640 if (textVisible) { 2641 ((FolderIcon) v).setTextVisible(true); 2642 } 2643 } 2644 destCanvas.restore(); 2645 } 2646 2647 /** 2648 * Returns a new bitmap to show when the given View is being dragged around. 2649 * Responsibility for the bitmap is transferred to the caller. 2650 * @param expectedPadding padding to add to the drag view. If a different padding was used 2651 * its value will be changed 2652 */ 2653 public Bitmap createDragBitmap(View v, AtomicInteger expectedPadding) { 2654 Bitmap b; 2655 2656 int padding = expectedPadding.get(); 2657 if (v instanceof TextView) { 2658 Drawable d = getTextViewIcon((TextView) v); 2659 Rect bounds = getDrawableBounds(d); 2660 b = Bitmap.createBitmap(bounds.width() + padding, 2661 bounds.height() + padding, Bitmap.Config.ARGB_8888); 2662 expectedPadding.set(padding - bounds.left - bounds.top); 2663 } else { 2664 b = Bitmap.createBitmap( 2665 v.getWidth() + padding, v.getHeight() + padding, Bitmap.Config.ARGB_8888); 2666 } 2667 2668 mCanvas.setBitmap(b); 2669 drawDragView(v, mCanvas, padding); 2670 mCanvas.setBitmap(null); 2671 2672 return b; 2673 } 2674 2675 /** 2676 * Returns a new bitmap to be used as the object outline, e.g. to visualize the drop location. 2677 * Responsibility for the bitmap is transferred to the caller. 2678 */ 2679 private Bitmap createDragOutline(View v, int padding) { 2680 final int outlineColor = getResources().getColor(R.color.outline_color); 2681 final Bitmap b = Bitmap.createBitmap( 2682 v.getWidth() + padding, v.getHeight() + padding, Bitmap.Config.ARGB_8888); 2683 2684 mCanvas.setBitmap(b); 2685 drawDragView(v, mCanvas, padding); 2686 mOutlineHelper.applyExpensiveOutlineWithBlur(b, mCanvas, outlineColor, outlineColor); 2687 mCanvas.setBitmap(null); 2688 return b; 2689 } 2690 2691 /** 2692 * Returns a new bitmap to be used as the object outline, e.g. to visualize the drop location. 2693 * Responsibility for the bitmap is transferred to the caller. 2694 */ 2695 private Bitmap createDragOutline(Bitmap orig, int padding, int w, int h, 2696 boolean clipAlpha) { 2697 final int outlineColor = getResources().getColor(R.color.outline_color); 2698 final Bitmap b = Bitmap.createBitmap(w, h, Bitmap.Config.ARGB_8888); 2699 mCanvas.setBitmap(b); 2700 2701 Rect src = new Rect(0, 0, orig.getWidth(), orig.getHeight()); 2702 float scaleFactor = Math.min((w - padding) / (float) orig.getWidth(), 2703 (h - padding) / (float) orig.getHeight()); 2704 int scaledWidth = (int) (scaleFactor * orig.getWidth()); 2705 int scaledHeight = (int) (scaleFactor * orig.getHeight()); 2706 Rect dst = new Rect(0, 0, scaledWidth, scaledHeight); 2707 2708 // center the image 2709 dst.offset((w - scaledWidth) / 2, (h - scaledHeight) / 2); 2710 2711 mCanvas.drawBitmap(orig, src, dst, null); 2712 mOutlineHelper.applyExpensiveOutlineWithBlur(b, mCanvas, outlineColor, outlineColor, 2713 clipAlpha); 2714 mCanvas.setBitmap(null); 2715 2716 return b; 2717 } 2718 2719 public void startDrag(CellLayout.CellInfo cellInfo) { 2720 startDrag(cellInfo, false); 2721 } 2722 2723 public void startDrag(CellLayout.CellInfo cellInfo, boolean accessible) { 2724 View child = cellInfo.cell; 2725 2726 // Make sure the drag was started by a long press as opposed to a long click. 2727 if (!child.isInTouchMode()) { 2728 return; 2729 } 2730 2731 mDragInfo = cellInfo; 2732 child.setVisibility(INVISIBLE); 2733 CellLayout layout = (CellLayout) child.getParent().getParent(); 2734 layout.prepareChildForDrag(child); 2735 2736 beginDragShared(child, this, accessible); 2737 } 2738 2739 public void beginDragShared(View child, DragSource source, boolean accessible) { 2740 beginDragShared(child, new Point(), source, accessible); 2741 } 2742 2743 public void beginDragShared(View child, Point relativeTouchPos, DragSource source, 2744 boolean accessible) { 2745 child.clearFocus(); 2746 child.setPressed(false); 2747 2748 // The outline is used to visualize where the item will land if dropped 2749 mDragOutline = createDragOutline(child, DRAG_BITMAP_PADDING); 2750 2751 mLauncher.onDragStarted(child); 2752 // The drag bitmap follows the touch point around on the screen 2753 AtomicInteger padding = new AtomicInteger(DRAG_BITMAP_PADDING); 2754 final Bitmap b = createDragBitmap(child, padding); 2755 2756 final int bmpWidth = b.getWidth(); 2757 final int bmpHeight = b.getHeight(); 2758 2759 float scale = mLauncher.getDragLayer().getLocationInDragLayer(child, mTempXY); 2760 int dragLayerX = Math.round(mTempXY[0] - (bmpWidth - scale * child.getWidth()) / 2); 2761 int dragLayerY = Math.round(mTempXY[1] - (bmpHeight - scale * bmpHeight) / 2 2762 - padding.get() / 2); 2763 2764 LauncherAppState app = LauncherAppState.getInstance(); 2765 DeviceProfile grid = app.getDynamicGrid().getDeviceProfile(); 2766 Point dragVisualizeOffset = null; 2767 Rect dragRect = null; 2768 if (child instanceof BubbleTextView) { 2769 BubbleTextView icon = (BubbleTextView) child; 2770 int iconSize = grid.iconSizePx; 2771 int top = child.getPaddingTop(); 2772 int left = (bmpWidth - iconSize) / 2; 2773 int right = left + iconSize; 2774 int bottom = top + iconSize; 2775 if (icon.isLayoutHorizontal()) { 2776 // If the layout is horizontal, then if we are just picking up the icon, then just 2777 // use the child position since the icon is top-left aligned. Otherwise, offset 2778 // the drag layer position horizontally so that the icon is under the current 2779 // touch position. 2780 if (icon.getIcon().getBounds().contains(relativeTouchPos.x, relativeTouchPos.y)) { 2781 dragLayerX = Math.round(mTempXY[0]); 2782 } else { 2783 dragLayerX = Math.round(mTempXY[0] + relativeTouchPos.x - (bmpWidth / 2)); 2784 } 2785 } 2786 dragLayerY += top; 2787 // Note: The drag region is used to calculate drag layer offsets, but the 2788 // dragVisualizeOffset in addition to the dragRect (the size) to position the outline. 2789 dragVisualizeOffset = new Point(-padding.get() / 2, padding.get() / 2); 2790 dragRect = new Rect(left, top, right, bottom); 2791 } else if (child instanceof FolderIcon) { 2792 int previewSize = grid.folderIconSizePx; 2793 dragRect = new Rect(0, child.getPaddingTop(), child.getWidth(), previewSize); 2794 } 2795 2796 // Clear the pressed state if necessary 2797 if (child instanceof BubbleTextView) { 2798 BubbleTextView icon = (BubbleTextView) child; 2799 icon.clearPressedBackground(); 2800 } 2801 2802 if (child.getTag() == null || !(child.getTag() instanceof ItemInfo)) { 2803 String msg = "Drag started with a view that has no tag set. This " 2804 + "will cause a crash (issue 11627249) down the line. " 2805 + "View: " + child + " tag: " + child.getTag(); 2806 throw new IllegalStateException(msg); 2807 } 2808 2809 DragView dv = mDragController.startDrag(b, dragLayerX, dragLayerY, source, child.getTag(), 2810 DragController.DRAG_ACTION_MOVE, dragVisualizeOffset, dragRect, scale, accessible); 2811 dv.setIntrinsicIconScaleFactor(source.getIntrinsicIconScaleFactor()); 2812 2813 if (child.getParent() instanceof ShortcutAndWidgetContainer) { 2814 mDragSourceInternal = (ShortcutAndWidgetContainer) child.getParent(); 2815 } 2816 2817 b.recycle(); 2818 } 2819 2820 public void beginExternalDragShared(View child, DragSource source) { 2821 LauncherAppState app = LauncherAppState.getInstance(); 2822 DeviceProfile grid = app.getDynamicGrid().getDeviceProfile(); 2823 int iconSize = grid.iconSizePx; 2824 2825 // Notify launcher of drag start 2826 mLauncher.onDragStarted(child); 2827 2828 // Compose a new drag bitmap that is of the icon size 2829 AtomicInteger padding = new AtomicInteger(DRAG_BITMAP_PADDING); 2830 final Bitmap tmpB = createDragBitmap(child, padding); 2831 Bitmap b = Bitmap.createBitmap(iconSize, iconSize, Bitmap.Config.ARGB_8888); 2832 Paint p = new Paint(); 2833 p.setFilterBitmap(true); 2834 mCanvas.setBitmap(b); 2835 mCanvas.drawBitmap(tmpB, new Rect(0, 0, tmpB.getWidth(), tmpB.getHeight()), 2836 new Rect(0, 0, iconSize, iconSize), p); 2837 mCanvas.setBitmap(null); 2838 2839 // Find the child's location on the screen 2840 int bmpWidth = tmpB.getWidth(); 2841 float iconScale = (float) bmpWidth / iconSize; 2842 float scale = mLauncher.getDragLayer().getLocationInDragLayer(child, mTempXY) * iconScale; 2843 int dragLayerX = Math.round(mTempXY[0] - (bmpWidth - scale * child.getWidth()) / 2); 2844 int dragLayerY = Math.round(mTempXY[1]); 2845 2846 // Note: The drag region is used to calculate drag layer offsets, but the 2847 // dragVisualizeOffset in addition to the dragRect (the size) to position the outline. 2848 Point dragVisualizeOffset = new Point(-padding.get() / 2, padding.get() / 2); 2849 Rect dragRect = new Rect(0, 0, iconSize, iconSize); 2850 2851 if (child.getTag() == null || !(child.getTag() instanceof ItemInfo)) { 2852 String msg = "Drag started with a view that has no tag set. This " 2853 + "will cause a crash (issue 11627249) down the line. " 2854 + "View: " + child + " tag: " + child.getTag(); 2855 throw new IllegalStateException(msg); 2856 } 2857 2858 // Start the drag 2859 DragView dv = mDragController.startDrag(b, dragLayerX, dragLayerY, source, child.getTag(), 2860 DragController.DRAG_ACTION_MOVE, dragVisualizeOffset, dragRect, scale, false); 2861 dv.setIntrinsicIconScaleFactor(source.getIntrinsicIconScaleFactor()); 2862 2863 // Recycle temporary bitmaps 2864 tmpB.recycle(); 2865 } 2866 2867 public boolean transitionStateShouldAllowDrop() { 2868 return ((!isSwitchingState() || mTransitionProgress > 0.5f) && 2869 (mState == State.NORMAL || mState == State.SPRING_LOADED)); 2870 } 2871 2872 /** 2873 * {@inheritDoc} 2874 */ 2875 public boolean acceptDrop(DragObject d) { 2876 // If it's an external drop (e.g. from All Apps), check if it should be accepted 2877 CellLayout dropTargetLayout = mDropToLayout; 2878 if (d.dragSource != this) { 2879 // Don't accept the drop if we're not over a screen at time of drop 2880 if (dropTargetLayout == null) { 2881 return false; 2882 } 2883 if (!transitionStateShouldAllowDrop()) return false; 2884 2885 mDragViewVisualCenter = d.getVisualCenter(mDragViewVisualCenter); 2886 2887 // We want the point to be mapped to the dragTarget. 2888 if (mLauncher.isHotseatLayout(dropTargetLayout)) { 2889 mapPointFromSelfToHotseatLayout(mLauncher.getHotseat(), mDragViewVisualCenter); 2890 } else { 2891 mapPointFromSelfToChild(dropTargetLayout, mDragViewVisualCenter, null); 2892 } 2893 2894 int spanX = 1; 2895 int spanY = 1; 2896 if (mDragInfo != null) { 2897 final CellLayout.CellInfo dragCellInfo = mDragInfo; 2898 spanX = dragCellInfo.spanX; 2899 spanY = dragCellInfo.spanY; 2900 } else { 2901 final ItemInfo dragInfo = (ItemInfo) d.dragInfo; 2902 spanX = dragInfo.spanX; 2903 spanY = dragInfo.spanY; 2904 } 2905 2906 int minSpanX = spanX; 2907 int minSpanY = spanY; 2908 if (d.dragInfo instanceof PendingAddWidgetInfo) { 2909 minSpanX = ((PendingAddWidgetInfo) d.dragInfo).minSpanX; 2910 minSpanY = ((PendingAddWidgetInfo) d.dragInfo).minSpanY; 2911 } 2912 2913 mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], 2914 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, dropTargetLayout, 2915 mTargetCell); 2916 float distance = dropTargetLayout.getDistanceFromCell(mDragViewVisualCenter[0], 2917 mDragViewVisualCenter[1], mTargetCell); 2918 if (mCreateUserFolderOnDrop && willCreateUserFolder((ItemInfo) d.dragInfo, 2919 dropTargetLayout, mTargetCell, distance, true)) { 2920 return true; 2921 } 2922 2923 if (mAddToExistingFolderOnDrop && willAddToExistingUserFolder((ItemInfo) d.dragInfo, 2924 dropTargetLayout, mTargetCell, distance)) { 2925 return true; 2926 } 2927 2928 int[] resultSpan = new int[2]; 2929 mTargetCell = dropTargetLayout.performReorder((int) mDragViewVisualCenter[0], 2930 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, spanX, spanY, 2931 null, mTargetCell, resultSpan, CellLayout.MODE_ACCEPT_DROP); 2932 boolean foundCell = mTargetCell[0] >= 0 && mTargetCell[1] >= 0; 2933 2934 // Don't accept the drop if there's no room for the item 2935 if (!foundCell) { 2936 // Don't show the message if we are dropping on the AllApps button and the hotseat 2937 // is full 2938 boolean isHotseat = mLauncher.isHotseatLayout(dropTargetLayout); 2939 if (mTargetCell != null && isHotseat) { 2940 Hotseat hotseat = mLauncher.getHotseat(); 2941 if (hotseat.isAllAppsButtonRank( 2942 hotseat.getOrderInHotseat(mTargetCell[0], mTargetCell[1]))) { 2943 return false; 2944 } 2945 } 2946 2947 mLauncher.showOutOfSpaceMessage(isHotseat); 2948 return false; 2949 } 2950 } 2951 2952 long screenId = getIdForScreen(dropTargetLayout); 2953 if (screenId == EXTRA_EMPTY_SCREEN_ID) { 2954 commitExtraEmptyScreen(); 2955 } 2956 2957 return true; 2958 } 2959 2960 boolean willCreateUserFolder(ItemInfo info, CellLayout target, int[] targetCell, float 2961 distance, boolean considerTimeout) { 2962 if (distance > mMaxDistanceForFolderCreation) return false; 2963 View dropOverView = target.getChildAt(targetCell[0], targetCell[1]); 2964 2965 if (dropOverView != null) { 2966 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) dropOverView.getLayoutParams(); 2967 if (lp.useTmpCoords && (lp.tmpCellX != lp.cellX || lp.tmpCellY != lp.tmpCellY)) { 2968 return false; 2969 } 2970 } 2971 2972 boolean hasntMoved = false; 2973 if (mDragInfo != null) { 2974 hasntMoved = dropOverView == mDragInfo.cell; 2975 } 2976 2977 if (dropOverView == null || hasntMoved || (considerTimeout && !mCreateUserFolderOnDrop)) { 2978 return false; 2979 } 2980 2981 boolean aboveShortcut = (dropOverView.getTag() instanceof ShortcutInfo); 2982 boolean willBecomeShortcut = 2983 (info.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPLICATION || 2984 info.itemType == LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT); 2985 2986 return (aboveShortcut && willBecomeShortcut); 2987 } 2988 2989 boolean willAddToExistingUserFolder(Object dragInfo, CellLayout target, int[] targetCell, 2990 float distance) { 2991 if (distance > mMaxDistanceForFolderCreation) return false; 2992 View dropOverView = target.getChildAt(targetCell[0], targetCell[1]); 2993 2994 if (dropOverView != null) { 2995 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) dropOverView.getLayoutParams(); 2996 if (lp.useTmpCoords && (lp.tmpCellX != lp.cellX || lp.tmpCellY != lp.tmpCellY)) { 2997 return false; 2998 } 2999 } 3000 3001 if (dropOverView instanceof FolderIcon) { 3002 FolderIcon fi = (FolderIcon) dropOverView; 3003 if (fi.acceptDrop(dragInfo)) { 3004 return true; 3005 } 3006 } 3007 return false; 3008 } 3009 3010 boolean createUserFolderIfNecessary(View newView, long container, CellLayout target, 3011 int[] targetCell, float distance, boolean external, DragView dragView, 3012 Runnable postAnimationRunnable) { 3013 if (distance > mMaxDistanceForFolderCreation) return false; 3014 View v = target.getChildAt(targetCell[0], targetCell[1]); 3015 3016 boolean hasntMoved = false; 3017 if (mDragInfo != null) { 3018 CellLayout cellParent = getParentCellLayoutForView(mDragInfo.cell); 3019 hasntMoved = (mDragInfo.cellX == targetCell[0] && 3020 mDragInfo.cellY == targetCell[1]) && (cellParent == target); 3021 } 3022 3023 if (v == null || hasntMoved || !mCreateUserFolderOnDrop) return false; 3024 mCreateUserFolderOnDrop = false; 3025 final long screenId = (targetCell == null) ? mDragInfo.screenId : getIdForScreen(target); 3026 3027 boolean aboveShortcut = (v.getTag() instanceof ShortcutInfo); 3028 boolean willBecomeShortcut = (newView.getTag() instanceof ShortcutInfo); 3029 3030 if (aboveShortcut && willBecomeShortcut) { 3031 ShortcutInfo sourceInfo = (ShortcutInfo) newView.getTag(); 3032 ShortcutInfo destInfo = (ShortcutInfo) v.getTag(); 3033 // if the drag started here, we need to remove it from the workspace 3034 if (!external) { 3035 getParentCellLayoutForView(mDragInfo.cell).removeView(mDragInfo.cell); 3036 } 3037 3038 Rect folderLocation = new Rect(); 3039 float scale = mLauncher.getDragLayer().getDescendantRectRelativeToSelf(v, folderLocation); 3040 target.removeView(v); 3041 3042 FolderIcon fi = 3043 mLauncher.addFolder(target, container, screenId, targetCell[0], targetCell[1]); 3044 destInfo.cellX = -1; 3045 destInfo.cellY = -1; 3046 sourceInfo.cellX = -1; 3047 sourceInfo.cellY = -1; 3048 3049 // If the dragView is null, we can't animate 3050 boolean animate = dragView != null; 3051 if (animate) { 3052 fi.performCreateAnimation(destInfo, v, sourceInfo, dragView, folderLocation, scale, 3053 postAnimationRunnable); 3054 } else { 3055 fi.addItem(destInfo); 3056 fi.addItem(sourceInfo); 3057 } 3058 return true; 3059 } 3060 return false; 3061 } 3062 3063 boolean addToExistingFolderIfNecessary(View newView, CellLayout target, int[] targetCell, 3064 float distance, DragObject d, boolean external) { 3065 if (distance > mMaxDistanceForFolderCreation) return false; 3066 3067 View dropOverView = target.getChildAt(targetCell[0], targetCell[1]); 3068 if (!mAddToExistingFolderOnDrop) return false; 3069 mAddToExistingFolderOnDrop = false; 3070 3071 if (dropOverView instanceof FolderIcon) { 3072 FolderIcon fi = (FolderIcon) dropOverView; 3073 if (fi.acceptDrop(d.dragInfo)) { 3074 fi.onDrop(d); 3075 3076 // if the drag started here, we need to remove it from the workspace 3077 if (!external) { 3078 getParentCellLayoutForView(mDragInfo.cell).removeView(mDragInfo.cell); 3079 } 3080 return true; 3081 } 3082 } 3083 return false; 3084 } 3085 3086 public void onDrop(final DragObject d) { 3087 mDragViewVisualCenter = d.getVisualCenter(mDragViewVisualCenter); 3088 CellLayout dropTargetLayout = mDropToLayout; 3089 3090 // We want the point to be mapped to the dragTarget. 3091 if (dropTargetLayout != null) { 3092 if (mLauncher.isHotseatLayout(dropTargetLayout)) { 3093 mapPointFromSelfToHotseatLayout(mLauncher.getHotseat(), mDragViewVisualCenter); 3094 } else { 3095 mapPointFromSelfToChild(dropTargetLayout, mDragViewVisualCenter, null); 3096 } 3097 } 3098 3099 int snapScreen = -1; 3100 boolean resizeOnDrop = false; 3101 if (d.dragSource != this) { 3102 final int[] touchXY = new int[] { (int) mDragViewVisualCenter[0], 3103 (int) mDragViewVisualCenter[1] }; 3104 onDropExternal(touchXY, d.dragInfo, dropTargetLayout, false, d); 3105 } else if (mDragInfo != null) { 3106 final View cell = mDragInfo.cell; 3107 3108 Runnable resizeRunnable = null; 3109 if (dropTargetLayout != null && !d.cancelled) { 3110 // Move internally 3111 boolean hasMovedLayouts = (getParentCellLayoutForView(cell) != dropTargetLayout); 3112 boolean hasMovedIntoHotseat = mLauncher.isHotseatLayout(dropTargetLayout); 3113 long container = hasMovedIntoHotseat ? 3114 LauncherSettings.Favorites.CONTAINER_HOTSEAT : 3115 LauncherSettings.Favorites.CONTAINER_DESKTOP; 3116 long screenId = (mTargetCell[0] < 0) ? 3117 mDragInfo.screenId : getIdForScreen(dropTargetLayout); 3118 int spanX = mDragInfo != null ? mDragInfo.spanX : 1; 3119 int spanY = mDragInfo != null ? mDragInfo.spanY : 1; 3120 // First we find the cell nearest to point at which the item is 3121 // dropped, without any consideration to whether there is an item there. 3122 3123 mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], (int) 3124 mDragViewVisualCenter[1], spanX, spanY, dropTargetLayout, mTargetCell); 3125 float distance = dropTargetLayout.getDistanceFromCell(mDragViewVisualCenter[0], 3126 mDragViewVisualCenter[1], mTargetCell); 3127 3128 // If the item being dropped is a shortcut and the nearest drop 3129 // cell also contains a shortcut, then create a folder with the two shortcuts. 3130 if (!mInScrollArea && createUserFolderIfNecessary(cell, container, 3131 dropTargetLayout, mTargetCell, distance, false, d.dragView, null)) { 3132 return; 3133 } 3134 3135 if (addToExistingFolderIfNecessary(cell, dropTargetLayout, mTargetCell, 3136 distance, d, false)) { 3137 return; 3138 } 3139 3140 // Aside from the special case where we're dropping a shortcut onto a shortcut, 3141 // we need to find the nearest cell location that is vacant 3142 ItemInfo item = (ItemInfo) d.dragInfo; 3143 int minSpanX = item.spanX; 3144 int minSpanY = item.spanY; 3145 if (item.minSpanX > 0 && item.minSpanY > 0) { 3146 minSpanX = item.minSpanX; 3147 minSpanY = item.minSpanY; 3148 } 3149 3150 int[] resultSpan = new int[2]; 3151 mTargetCell = dropTargetLayout.performReorder((int) mDragViewVisualCenter[0], 3152 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, spanX, spanY, cell, 3153 mTargetCell, resultSpan, CellLayout.MODE_ON_DROP); 3154 3155 boolean foundCell = mTargetCell[0] >= 0 && mTargetCell[1] >= 0; 3156 3157 // if the widget resizes on drop 3158 if (foundCell && (cell instanceof AppWidgetHostView) && 3159 (resultSpan[0] != item.spanX || resultSpan[1] != item.spanY)) { 3160 resizeOnDrop = true; 3161 item.spanX = resultSpan[0]; 3162 item.spanY = resultSpan[1]; 3163 AppWidgetHostView awhv = (AppWidgetHostView) cell; 3164 AppWidgetResizeFrame.updateWidgetSizeRanges(awhv, mLauncher, resultSpan[0], 3165 resultSpan[1]); 3166 } 3167 3168 if (getScreenIdForPageIndex(mCurrentPage) != screenId && !hasMovedIntoHotseat) { 3169 snapScreen = getPageIndexForScreenId(screenId); 3170 snapToPage(snapScreen); 3171 } 3172 3173 if (foundCell) { 3174 final ItemInfo info = (ItemInfo) cell.getTag(); 3175 if (hasMovedLayouts) { 3176 // Reparent the view 3177 CellLayout parentCell = getParentCellLayoutForView(cell); 3178 if (parentCell != null) { 3179 parentCell.removeView(cell); 3180 } else if (LauncherAppState.isDogfoodBuild()) { 3181 throw new NullPointerException("mDragInfo.cell has null parent"); 3182 } 3183 addInScreen(cell, container, screenId, mTargetCell[0], mTargetCell[1], 3184 info.spanX, info.spanY); 3185 } 3186 3187 // update the item's position after drop 3188 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) cell.getLayoutParams(); 3189 lp.cellX = lp.tmpCellX = mTargetCell[0]; 3190 lp.cellY = lp.tmpCellY = mTargetCell[1]; 3191 lp.cellHSpan = item.spanX; 3192 lp.cellVSpan = item.spanY; 3193 lp.isLockedToGrid = true; 3194 3195 if (container != LauncherSettings.Favorites.CONTAINER_HOTSEAT && 3196 cell instanceof LauncherAppWidgetHostView) { 3197 final CellLayout cellLayout = dropTargetLayout; 3198 // We post this call so that the widget has a chance to be placed 3199 // in its final location 3200 3201 final LauncherAppWidgetHostView hostView = (LauncherAppWidgetHostView) cell; 3202 AppWidgetProviderInfo pInfo = hostView.getAppWidgetInfo(); 3203 if (pInfo != null && pInfo.resizeMode != AppWidgetProviderInfo.RESIZE_NONE 3204 && !d.accessibleDrag) { 3205 final Runnable addResizeFrame = new Runnable() { 3206 public void run() { 3207 DragLayer dragLayer = mLauncher.getDragLayer(); 3208 dragLayer.addResizeFrame(info, hostView, cellLayout); 3209 } 3210 }; 3211 resizeRunnable = (new Runnable() { 3212 public void run() { 3213 if (!isPageMoving()) { 3214 addResizeFrame.run(); 3215 } else { 3216 mDelayedResizeRunnable = addResizeFrame; 3217 } 3218 } 3219 }); 3220 } 3221 } 3222 3223 LauncherModel.modifyItemInDatabase(mLauncher, info, container, screenId, lp.cellX, 3224 lp.cellY, item.spanX, item.spanY); 3225 } else { 3226 // If we can't find a drop location, we return the item to its original position 3227 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) cell.getLayoutParams(); 3228 mTargetCell[0] = lp.cellX; 3229 mTargetCell[1] = lp.cellY; 3230 CellLayout layout = (CellLayout) cell.getParent().getParent(); 3231 layout.markCellsAsOccupiedForView(cell); 3232 } 3233 } 3234 3235 final CellLayout parent = (CellLayout) cell.getParent().getParent(); 3236 final Runnable finalResizeRunnable = resizeRunnable; 3237 // Prepare it to be animated into its new position 3238 // This must be called after the view has been re-parented 3239 final Runnable onCompleteRunnable = new Runnable() { 3240 @Override 3241 public void run() { 3242 mAnimatingViewIntoPlace = false; 3243 updateChildrenLayersEnabled(false); 3244 if (finalResizeRunnable != null) { 3245 finalResizeRunnable.run(); 3246 } 3247 } 3248 }; 3249 mAnimatingViewIntoPlace = true; 3250 if (d.dragView.hasDrawn()) { 3251 final ItemInfo info = (ItemInfo) cell.getTag(); 3252 boolean isWidget = info.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET 3253 || info.itemType == LauncherSettings.Favorites.ITEM_TYPE_CUSTOM_APPWIDGET; 3254 if (isWidget) { 3255 int animationType = resizeOnDrop ? ANIMATE_INTO_POSITION_AND_RESIZE : 3256 ANIMATE_INTO_POSITION_AND_DISAPPEAR; 3257 animateWidgetDrop(info, parent, d.dragView, 3258 onCompleteRunnable, animationType, cell, false); 3259 } else { 3260 int duration = snapScreen < 0 ? -1 : ADJACENT_SCREEN_DROP_DURATION; 3261 mLauncher.getDragLayer().animateViewIntoPosition(d.dragView, cell, duration, 3262 onCompleteRunnable, this); 3263 } 3264 } else { 3265 d.deferDragViewCleanupPostAnimation = false; 3266 cell.setVisibility(VISIBLE); 3267 } 3268 parent.onDropChild(cell); 3269 } 3270 } 3271 3272 public void setFinalScrollForPageChange(int pageIndex) { 3273 CellLayout cl = (CellLayout) getChildAt(pageIndex); 3274 if (cl != null) { 3275 mSavedScrollX = getScrollX(); 3276 mSavedTranslationX = cl.getTranslationX(); 3277 mSavedRotationY = cl.getRotationY(); 3278 final int newX = getScrollForPage(pageIndex); 3279 setScrollX(newX); 3280 cl.setTranslationX(0f); 3281 cl.setRotationY(0f); 3282 } 3283 } 3284 3285 public void resetFinalScrollForPageChange(int pageIndex) { 3286 if (pageIndex >= 0) { 3287 CellLayout cl = (CellLayout) getChildAt(pageIndex); 3288 setScrollX(mSavedScrollX); 3289 cl.setTranslationX(mSavedTranslationX); 3290 cl.setRotationY(mSavedRotationY); 3291 } 3292 } 3293 3294 public void getViewLocationRelativeToSelf(View v, int[] location) { 3295 getLocationInWindow(location); 3296 int x = location[0]; 3297 int y = location[1]; 3298 3299 v.getLocationInWindow(location); 3300 int vX = location[0]; 3301 int vY = location[1]; 3302 3303 location[0] = vX - x; 3304 location[1] = vY - y; 3305 } 3306 3307 public void onDragEnter(DragObject d) { 3308 mDragEnforcer.onDragEnter(); 3309 mCreateUserFolderOnDrop = false; 3310 mAddToExistingFolderOnDrop = false; 3311 3312 mDropToLayout = null; 3313 CellLayout layout = getCurrentDropLayout(); 3314 setCurrentDropLayout(layout); 3315 setCurrentDragOverlappingLayout(layout); 3316 3317 if (!workspaceInModalState()) { 3318 mLauncher.getDragLayer().showPageHints(); 3319 } 3320 } 3321 3322 /** Return a rect that has the cellWidth/cellHeight (left, top), and 3323 * widthGap/heightGap (right, bottom) */ 3324 static Rect getCellLayoutMetrics(Launcher launcher, int orientation) { 3325 LauncherAppState app = LauncherAppState.getInstance(); 3326 DeviceProfile grid = app.getDynamicGrid().getDeviceProfile(); 3327 3328 Display display = launcher.getWindowManager().getDefaultDisplay(); 3329 Point smallestSize = new Point(); 3330 Point largestSize = new Point(); 3331 display.getCurrentSizeRange(smallestSize, largestSize); 3332 int countX = (int) grid.numColumns; 3333 int countY = (int) grid.numRows; 3334 if (orientation == CellLayout.LANDSCAPE) { 3335 if (mLandscapeCellLayoutMetrics == null) { 3336 Rect padding = grid.getWorkspacePadding(CellLayout.LANDSCAPE); 3337 int width = largestSize.x - padding.left - padding.right; 3338 int height = smallestSize.y - padding.top - padding.bottom; 3339 mLandscapeCellLayoutMetrics = new Rect(); 3340 mLandscapeCellLayoutMetrics.set( 3341 grid.calculateCellWidth(width, countX), 3342 grid.calculateCellHeight(height, countY), 0, 0); 3343 } 3344 return mLandscapeCellLayoutMetrics; 3345 } else if (orientation == CellLayout.PORTRAIT) { 3346 if (mPortraitCellLayoutMetrics == null) { 3347 Rect padding = grid.getWorkspacePadding(CellLayout.PORTRAIT); 3348 int width = smallestSize.x - padding.left - padding.right; 3349 int height = largestSize.y - padding.top - padding.bottom; 3350 mPortraitCellLayoutMetrics = new Rect(); 3351 mPortraitCellLayoutMetrics.set( 3352 grid.calculateCellWidth(width, countX), 3353 grid.calculateCellHeight(height, countY), 0, 0); 3354 } 3355 return mPortraitCellLayoutMetrics; 3356 } 3357 return null; 3358 } 3359 3360 public void onDragExit(DragObject d) { 3361 mDragEnforcer.onDragExit(); 3362 3363 // Here we store the final page that will be dropped to, if the workspace in fact 3364 // receives the drop 3365 if (mInScrollArea) { 3366 if (isPageMoving()) { 3367 // If the user drops while the page is scrolling, we should use that page as the 3368 // destination instead of the page that is being hovered over. 3369 mDropToLayout = (CellLayout) getPageAt(getNextPage()); 3370 } else { 3371 mDropToLayout = mDragOverlappingLayout; 3372 } 3373 } else { 3374 mDropToLayout = mDragTargetLayout; 3375 } 3376 3377 if (mDragMode == DRAG_MODE_CREATE_FOLDER) { 3378 mCreateUserFolderOnDrop = true; 3379 } else if (mDragMode == DRAG_MODE_ADD_TO_FOLDER) { 3380 mAddToExistingFolderOnDrop = true; 3381 } 3382 3383 // Reset the scroll area and previous drag target 3384 onResetScrollArea(); 3385 setCurrentDropLayout(null); 3386 setCurrentDragOverlappingLayout(null); 3387 3388 mSpringLoadedDragController.cancel(); 3389 3390 if (!mIsPageMoving) { 3391 hideOutlines(); 3392 } 3393 mLauncher.getDragLayer().hidePageHints(); 3394 } 3395 3396 void setCurrentDropLayout(CellLayout layout) { 3397 if (mDragTargetLayout != null) { 3398 mDragTargetLayout.revertTempState(); 3399 mDragTargetLayout.onDragExit(); 3400 } 3401 mDragTargetLayout = layout; 3402 if (mDragTargetLayout != null) { 3403 mDragTargetLayout.onDragEnter(); 3404 } 3405 cleanupReorder(true); 3406 cleanupFolderCreation(); 3407 setCurrentDropOverCell(-1, -1); 3408 } 3409 3410 void setCurrentDragOverlappingLayout(CellLayout layout) { 3411 if (mDragOverlappingLayout != null) { 3412 mDragOverlappingLayout.setIsDragOverlapping(false); 3413 } 3414 mDragOverlappingLayout = layout; 3415 if (mDragOverlappingLayout != null) { 3416 mDragOverlappingLayout.setIsDragOverlapping(true); 3417 } 3418 invalidate(); 3419 } 3420 3421 void setCurrentDropOverCell(int x, int y) { 3422 if (x != mDragOverX || y != mDragOverY) { 3423 mDragOverX = x; 3424 mDragOverY = y; 3425 setDragMode(DRAG_MODE_NONE); 3426 } 3427 } 3428 3429 void setDragMode(int dragMode) { 3430 if (dragMode != mDragMode) { 3431 if (dragMode == DRAG_MODE_NONE) { 3432 cleanupAddToFolder(); 3433 // We don't want to cancel the re-order alarm every time the target cell changes 3434 // as this feels to slow / unresponsive. 3435 cleanupReorder(false); 3436 cleanupFolderCreation(); 3437 } else if (dragMode == DRAG_MODE_ADD_TO_FOLDER) { 3438 cleanupReorder(true); 3439 cleanupFolderCreation(); 3440 } else if (dragMode == DRAG_MODE_CREATE_FOLDER) { 3441 cleanupAddToFolder(); 3442 cleanupReorder(true); 3443 } else if (dragMode == DRAG_MODE_REORDER) { 3444 cleanupAddToFolder(); 3445 cleanupFolderCreation(); 3446 } 3447 mDragMode = dragMode; 3448 } 3449 } 3450 3451 private void cleanupFolderCreation() { 3452 if (mDragFolderRingAnimator != null) { 3453 mDragFolderRingAnimator.animateToNaturalState(); 3454 mDragFolderRingAnimator = null; 3455 } 3456 mFolderCreationAlarm.setOnAlarmListener(null); 3457 mFolderCreationAlarm.cancelAlarm(); 3458 } 3459 3460 private void cleanupAddToFolder() { 3461 if (mDragOverFolderIcon != null) { 3462 mDragOverFolderIcon.onDragExit(null); 3463 mDragOverFolderIcon = null; 3464 } 3465 } 3466 3467 private void cleanupReorder(boolean cancelAlarm) { 3468 // Any pending reorders are canceled 3469 if (cancelAlarm) { 3470 mReorderAlarm.cancelAlarm(); 3471 } 3472 mLastReorderX = -1; 3473 mLastReorderY = -1; 3474 } 3475 3476 /* 3477 * 3478 * Convert the 2D coordinate xy from the parent View's coordinate space to this CellLayout's 3479 * coordinate space. The argument xy is modified with the return result. 3480 * 3481 * if cachedInverseMatrix is not null, this method will just use that matrix instead of 3482 * computing it itself; we use this to avoid redundant matrix inversions in 3483 * findMatchingPageForDragOver 3484 * 3485 */ 3486 void mapPointFromSelfToChild(View v, float[] xy, Matrix cachedInverseMatrix) { 3487 xy[0] = xy[0] - v.getLeft(); 3488 xy[1] = xy[1] - v.getTop(); 3489 } 3490 3491 boolean isPointInSelfOverHotseat(int x, int y, Rect r) { 3492 if (r == null) { 3493 r = new Rect(); 3494 } 3495 mTempPt[0] = x; 3496 mTempPt[1] = y; 3497 mLauncher.getDragLayer().getDescendantCoordRelativeToSelf(this, mTempPt, true); 3498 3499 LauncherAppState app = LauncherAppState.getInstance(); 3500 DeviceProfile grid = app.getDynamicGrid().getDeviceProfile(); 3501 r = grid.getHotseatRect(); 3502 if (r.contains(mTempPt[0], mTempPt[1])) { 3503 return true; 3504 } 3505 return false; 3506 } 3507 3508 void mapPointFromSelfToHotseatLayout(Hotseat hotseat, float[] xy) { 3509 mTempPt[0] = (int) xy[0]; 3510 mTempPt[1] = (int) xy[1]; 3511 mLauncher.getDragLayer().getDescendantCoordRelativeToSelf(this, mTempPt, true); 3512 mLauncher.getDragLayer().mapCoordInSelfToDescendent(hotseat.getLayout(), mTempPt); 3513 3514 xy[0] = mTempPt[0]; 3515 xy[1] = mTempPt[1]; 3516 } 3517 3518 /* 3519 * 3520 * Convert the 2D coordinate xy from this CellLayout's coordinate space to 3521 * the parent View's coordinate space. The argument xy is modified with the return result. 3522 * 3523 */ 3524 void mapPointFromChildToSelf(View v, float[] xy) { 3525 xy[0] += v.getLeft(); 3526 xy[1] += v.getTop(); 3527 } 3528 3529 static private float squaredDistance(float[] point1, float[] point2) { 3530 float distanceX = point1[0] - point2[0]; 3531 float distanceY = point2[1] - point2[1]; 3532 return distanceX * distanceX + distanceY * distanceY; 3533 } 3534 3535 /* 3536 * 3537 * This method returns the CellLayout that is currently being dragged to. In order to drag 3538 * to a CellLayout, either the touch point must be directly over the CellLayout, or as a second 3539 * strategy, we see if the dragView is overlapping any CellLayout and choose the closest one 3540 * 3541 * Return null if no CellLayout is currently being dragged over 3542 * 3543 */ 3544 private CellLayout findMatchingPageForDragOver( 3545 DragView dragView, float originX, float originY, boolean exact) { 3546 // We loop through all the screens (ie CellLayouts) and see which ones overlap 3547 // with the item being dragged and then choose the one that's closest to the touch point 3548 final int screenCount = getChildCount(); 3549 CellLayout bestMatchingScreen = null; 3550 float smallestDistSoFar = Float.MAX_VALUE; 3551 3552 for (int i = 0; i < screenCount; i++) { 3553 // The custom content screen is not a valid drag over option 3554 if (mScreenOrder.get(i) == CUSTOM_CONTENT_SCREEN_ID) { 3555 continue; 3556 } 3557 3558 CellLayout cl = (CellLayout) getChildAt(i); 3559 3560 final float[] touchXy = {originX, originY}; 3561 // Transform the touch coordinates to the CellLayout's local coordinates 3562 // If the touch point is within the bounds of the cell layout, we can return immediately 3563 cl.getMatrix().invert(mTempInverseMatrix); 3564 mapPointFromSelfToChild(cl, touchXy, mTempInverseMatrix); 3565 3566 if (touchXy[0] >= 0 && touchXy[0] <= cl.getWidth() && 3567 touchXy[1] >= 0 && touchXy[1] <= cl.getHeight()) { 3568 return cl; 3569 } 3570 3571 if (!exact) { 3572 // Get the center of the cell layout in screen coordinates 3573 final float[] cellLayoutCenter = mTempCellLayoutCenterCoordinates; 3574 cellLayoutCenter[0] = cl.getWidth()/2; 3575 cellLayoutCenter[1] = cl.getHeight()/2; 3576 mapPointFromChildToSelf(cl, cellLayoutCenter); 3577 3578 touchXy[0] = originX; 3579 touchXy[1] = originY; 3580 3581 // Calculate the distance between the center of the CellLayout 3582 // and the touch point 3583 float dist = squaredDistance(touchXy, cellLayoutCenter); 3584 3585 if (dist < smallestDistSoFar) { 3586 smallestDistSoFar = dist; 3587 bestMatchingScreen = cl; 3588 } 3589 } 3590 } 3591 return bestMatchingScreen; 3592 } 3593 3594 private boolean isDragWidget(DragObject d) { 3595 return (d.dragInfo instanceof LauncherAppWidgetInfo || 3596 d.dragInfo instanceof PendingAddWidgetInfo); 3597 } 3598 private boolean isExternalDragWidget(DragObject d) { 3599 return d.dragSource != this && isDragWidget(d); 3600 } 3601 3602 public void onDragOver(DragObject d) { 3603 // Skip drag over events while we are dragging over side pages 3604 if (mInScrollArea || !transitionStateShouldAllowDrop()) return; 3605 3606 Rect r = new Rect(); 3607 CellLayout layout = null; 3608 ItemInfo item = (ItemInfo) d.dragInfo; 3609 if (item == null) { 3610 if (LauncherAppState.isDogfoodBuild()) { 3611 throw new NullPointerException("DragObject has null info"); 3612 } 3613 return; 3614 } 3615 3616 // Ensure that we have proper spans for the item that we are dropping 3617 if (item.spanX < 0 || item.spanY < 0) throw new RuntimeException("Improper spans found"); 3618 mDragViewVisualCenter = d.getVisualCenter(mDragViewVisualCenter); 3619 3620 final View child = (mDragInfo == null) ? null : mDragInfo.cell; 3621 // Identify whether we have dragged over a side page 3622 if (workspaceInModalState()) { 3623 if (mLauncher.getHotseat() != null && !isExternalDragWidget(d)) { 3624 if (isPointInSelfOverHotseat(d.x, d.y, r)) { 3625 layout = mLauncher.getHotseat().getLayout(); 3626 } 3627 } 3628 if (layout == null) { 3629 layout = findMatchingPageForDragOver(d.dragView, d.x, d.y, false); 3630 } 3631 if (layout != mDragTargetLayout) { 3632 setCurrentDropLayout(layout); 3633 setCurrentDragOverlappingLayout(layout); 3634 3635 boolean isInSpringLoadedMode = (mState == State.SPRING_LOADED); 3636 if (isInSpringLoadedMode) { 3637 if (mLauncher.isHotseatLayout(layout)) { 3638 mSpringLoadedDragController.cancel(); 3639 } else { 3640 mSpringLoadedDragController.setAlarm(mDragTargetLayout); 3641 } 3642 } 3643 } 3644 } else { 3645 // Test to see if we are over the hotseat otherwise just use the current page 3646 if (mLauncher.getHotseat() != null && !isDragWidget(d)) { 3647 if (isPointInSelfOverHotseat(d.x, d.y, r)) { 3648 layout = mLauncher.getHotseat().getLayout(); 3649 } 3650 } 3651 if (layout == null) { 3652 layout = getCurrentDropLayout(); 3653 } 3654 if (layout != mDragTargetLayout) { 3655 setCurrentDropLayout(layout); 3656 setCurrentDragOverlappingLayout(layout); 3657 } 3658 } 3659 3660 // Handle the drag over 3661 if (mDragTargetLayout != null) { 3662 // We want the point to be mapped to the dragTarget. 3663 if (mLauncher.isHotseatLayout(mDragTargetLayout)) { 3664 mapPointFromSelfToHotseatLayout(mLauncher.getHotseat(), mDragViewVisualCenter); 3665 } else { 3666 mapPointFromSelfToChild(mDragTargetLayout, mDragViewVisualCenter, null); 3667 } 3668 3669 ItemInfo info = (ItemInfo) d.dragInfo; 3670 3671 int minSpanX = item.spanX; 3672 int minSpanY = item.spanY; 3673 if (item.minSpanX > 0 && item.minSpanY > 0) { 3674 minSpanX = item.minSpanX; 3675 minSpanY = item.minSpanY; 3676 } 3677 3678 mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], 3679 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, 3680 mDragTargetLayout, mTargetCell); 3681 int reorderX = mTargetCell[0]; 3682 int reorderY = mTargetCell[1]; 3683 3684 setCurrentDropOverCell(mTargetCell[0], mTargetCell[1]); 3685 3686 float targetCellDistance = mDragTargetLayout.getDistanceFromCell( 3687 mDragViewVisualCenter[0], mDragViewVisualCenter[1], mTargetCell); 3688 3689 final View dragOverView = mDragTargetLayout.getChildAt(mTargetCell[0], 3690 mTargetCell[1]); 3691 3692 manageFolderFeedback(info, mDragTargetLayout, mTargetCell, 3693 targetCellDistance, dragOverView, d.accessibleDrag); 3694 3695 boolean nearestDropOccupied = mDragTargetLayout.isNearestDropLocationOccupied((int) 3696 mDragViewVisualCenter[0], (int) mDragViewVisualCenter[1], item.spanX, 3697 item.spanY, child, mTargetCell); 3698 3699 if (!nearestDropOccupied) { 3700 mDragTargetLayout.visualizeDropLocation(child, mDragOutline, 3701 (int) mDragViewVisualCenter[0], (int) mDragViewVisualCenter[1], 3702 mTargetCell[0], mTargetCell[1], item.spanX, item.spanY, false, 3703 d.dragView.getDragVisualizeOffset(), d.dragView.getDragRegion()); 3704 } else if ((mDragMode == DRAG_MODE_NONE || mDragMode == DRAG_MODE_REORDER) 3705 && !mReorderAlarm.alarmPending() && (mLastReorderX != reorderX || 3706 mLastReorderY != reorderY)) { 3707 3708 int[] resultSpan = new int[2]; 3709 mDragTargetLayout.performReorder((int) mDragViewVisualCenter[0], 3710 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, item.spanX, item.spanY, 3711 child, mTargetCell, resultSpan, CellLayout.MODE_SHOW_REORDER_HINT); 3712 3713 // Otherwise, if we aren't adding to or creating a folder and there's no pending 3714 // reorder, then we schedule a reorder 3715 ReorderAlarmListener listener = new ReorderAlarmListener(mDragViewVisualCenter, 3716 minSpanX, minSpanY, item.spanX, item.spanY, d.dragView, child); 3717 mReorderAlarm.setOnAlarmListener(listener); 3718 mReorderAlarm.setAlarm(REORDER_TIMEOUT); 3719 } 3720 3721 if (mDragMode == DRAG_MODE_CREATE_FOLDER || mDragMode == DRAG_MODE_ADD_TO_FOLDER || 3722 !nearestDropOccupied) { 3723 if (mDragTargetLayout != null) { 3724 mDragTargetLayout.revertTempState(); 3725 } 3726 } 3727 } 3728 } 3729 3730 private void manageFolderFeedback(ItemInfo info, CellLayout targetLayout, 3731 int[] targetCell, float distance, View dragOverView, boolean accessibleDrag) { 3732 boolean userFolderPending = willCreateUserFolder(info, targetLayout, targetCell, distance, 3733 false); 3734 if (mDragMode == DRAG_MODE_NONE && userFolderPending && 3735 !mFolderCreationAlarm.alarmPending()) { 3736 3737 FolderCreationAlarmListener listener = new 3738 FolderCreationAlarmListener(targetLayout, targetCell[0], targetCell[1]); 3739 3740 if (!accessibleDrag) { 3741 mFolderCreationAlarm.setOnAlarmListener(listener); 3742 mFolderCreationAlarm.setAlarm(FOLDER_CREATION_TIMEOUT); 3743 } else { 3744 listener.onAlarm(mFolderCreationAlarm); 3745 } 3746 return; 3747 } 3748 3749 boolean willAddToFolder = 3750 willAddToExistingUserFolder(info, targetLayout, targetCell, distance); 3751 3752 if (willAddToFolder && mDragMode == DRAG_MODE_NONE) { 3753 mDragOverFolderIcon = ((FolderIcon) dragOverView); 3754 mDragOverFolderIcon.onDragEnter(info); 3755 if (targetLayout != null) { 3756 targetLayout.clearDragOutlines(); 3757 } 3758 setDragMode(DRAG_MODE_ADD_TO_FOLDER); 3759 return; 3760 } 3761 3762 if (mDragMode == DRAG_MODE_ADD_TO_FOLDER && !willAddToFolder) { 3763 setDragMode(DRAG_MODE_NONE); 3764 } 3765 if (mDragMode == DRAG_MODE_CREATE_FOLDER && !userFolderPending) { 3766 setDragMode(DRAG_MODE_NONE); 3767 } 3768 3769 return; 3770 } 3771 3772 class FolderCreationAlarmListener implements OnAlarmListener { 3773 CellLayout layout; 3774 int cellX; 3775 int cellY; 3776 3777 public FolderCreationAlarmListener(CellLayout layout, int cellX, int cellY) { 3778 this.layout = layout; 3779 this.cellX = cellX; 3780 this.cellY = cellY; 3781 } 3782 3783 public void onAlarm(Alarm alarm) { 3784 if (mDragFolderRingAnimator != null) { 3785 // This shouldn't happen ever, but just in case, make sure we clean up the mess. 3786 mDragFolderRingAnimator.animateToNaturalState(); 3787 } 3788 mDragFolderRingAnimator = new FolderRingAnimator(mLauncher, null); 3789 mDragFolderRingAnimator.setCell(cellX, cellY); 3790 mDragFolderRingAnimator.setCellLayout(layout); 3791 mDragFolderRingAnimator.animateToAcceptState(); 3792 layout.showFolderAccept(mDragFolderRingAnimator); 3793 layout.clearDragOutlines(); 3794 setDragMode(DRAG_MODE_CREATE_FOLDER); 3795 } 3796 } 3797 3798 class ReorderAlarmListener implements OnAlarmListener { 3799 float[] dragViewCenter; 3800 int minSpanX, minSpanY, spanX, spanY; 3801 DragView dragView; 3802 View child; 3803 3804 public ReorderAlarmListener(float[] dragViewCenter, int minSpanX, int minSpanY, int spanX, 3805 int spanY, DragView dragView, View child) { 3806 this.dragViewCenter = dragViewCenter; 3807 this.minSpanX = minSpanX; 3808 this.minSpanY = minSpanY; 3809 this.spanX = spanX; 3810 this.spanY = spanY; 3811 this.child = child; 3812 this.dragView = dragView; 3813 } 3814 3815 public void onAlarm(Alarm alarm) { 3816 int[] resultSpan = new int[2]; 3817 mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], 3818 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, mDragTargetLayout, 3819 mTargetCell); 3820 mLastReorderX = mTargetCell[0]; 3821 mLastReorderY = mTargetCell[1]; 3822 3823 mTargetCell = mDragTargetLayout.performReorder((int) mDragViewVisualCenter[0], 3824 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, spanX, spanY, 3825 child, mTargetCell, resultSpan, CellLayout.MODE_DRAG_OVER); 3826 3827 if (mTargetCell[0] < 0 || mTargetCell[1] < 0) { 3828 mDragTargetLayout.revertTempState(); 3829 } else { 3830 setDragMode(DRAG_MODE_REORDER); 3831 } 3832 3833 boolean resize = resultSpan[0] != spanX || resultSpan[1] != spanY; 3834 mDragTargetLayout.visualizeDropLocation(child, mDragOutline, 3835 (int) mDragViewVisualCenter[0], (int) mDragViewVisualCenter[1], 3836 mTargetCell[0], mTargetCell[1], resultSpan[0], resultSpan[1], resize, 3837 dragView.getDragVisualizeOffset(), dragView.getDragRegion()); 3838 } 3839 } 3840 3841 @Override 3842 public void getHitRectRelativeToDragLayer(Rect outRect) { 3843 // We want the workspace to have the whole area of the display (it will find the correct 3844 // cell layout to drop to in the existing drag/drop logic. 3845 mLauncher.getDragLayer().getDescendantRectRelativeToSelf(this, outRect); 3846 } 3847 3848 /** 3849 * Add the item specified by dragInfo to the given layout. 3850 * @return true if successful 3851 */ 3852 public boolean addExternalItemToScreen(ItemInfo dragInfo, CellLayout layout) { 3853 if (layout.findCellForSpan(mTempEstimate, dragInfo.spanX, dragInfo.spanY)) { 3854 onDropExternal(dragInfo.dropPos, (ItemInfo) dragInfo, (CellLayout) layout, false); 3855 return true; 3856 } 3857 mLauncher.showOutOfSpaceMessage(mLauncher.isHotseatLayout(layout)); 3858 return false; 3859 } 3860 3861 private void onDropExternal(int[] touchXY, Object dragInfo, 3862 CellLayout cellLayout, boolean insertAtFirst) { 3863 onDropExternal(touchXY, dragInfo, cellLayout, insertAtFirst, null); 3864 } 3865 3866 /** 3867 * Drop an item that didn't originate on one of the workspace screens. 3868 * It may have come from Launcher (e.g. from all apps or customize), or it may have 3869 * come from another app altogether. 3870 * 3871 * NOTE: This can also be called when we are outside of a drag event, when we want 3872 * to add an item to one of the workspace screens. 3873 */ 3874 private void onDropExternal(final int[] touchXY, final Object dragInfo, 3875 final CellLayout cellLayout, boolean insertAtFirst, DragObject d) { 3876 final Runnable exitSpringLoadedRunnable = new Runnable() { 3877 @Override 3878 public void run() { 3879 mLauncher.exitSpringLoadedDragModeDelayed(true, 3880 Launcher.EXIT_SPRINGLOADED_MODE_SHORT_TIMEOUT, null); 3881 } 3882 }; 3883 3884 ItemInfo info = (ItemInfo) dragInfo; 3885 int spanX = info.spanX; 3886 int spanY = info.spanY; 3887 if (mDragInfo != null) { 3888 spanX = mDragInfo.spanX; 3889 spanY = mDragInfo.spanY; 3890 } 3891 3892 final long container = mLauncher.isHotseatLayout(cellLayout) ? 3893 LauncherSettings.Favorites.CONTAINER_HOTSEAT : 3894 LauncherSettings.Favorites.CONTAINER_DESKTOP; 3895 final long screenId = getIdForScreen(cellLayout); 3896 if (!mLauncher.isHotseatLayout(cellLayout) 3897 && screenId != getScreenIdForPageIndex(mCurrentPage) 3898 && mState != State.SPRING_LOADED) { 3899 snapToScreenId(screenId, null); 3900 } 3901 3902 if (info instanceof PendingAddItemInfo) { 3903 final PendingAddItemInfo pendingInfo = (PendingAddItemInfo) dragInfo; 3904 3905 boolean findNearestVacantCell = true; 3906 if (pendingInfo.itemType == LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT) { 3907 mTargetCell = findNearestArea((int) touchXY[0], (int) touchXY[1], spanX, spanY, 3908 cellLayout, mTargetCell); 3909 float distance = cellLayout.getDistanceFromCell(mDragViewVisualCenter[0], 3910 mDragViewVisualCenter[1], mTargetCell); 3911 if (willCreateUserFolder((ItemInfo) d.dragInfo, cellLayout, mTargetCell, 3912 distance, true) || willAddToExistingUserFolder((ItemInfo) d.dragInfo, 3913 cellLayout, mTargetCell, distance)) { 3914 findNearestVacantCell = false; 3915 } 3916 } 3917 3918 final ItemInfo item = (ItemInfo) d.dragInfo; 3919 boolean updateWidgetSize = false; 3920 if (findNearestVacantCell) { 3921 int minSpanX = item.spanX; 3922 int minSpanY = item.spanY; 3923 if (item.minSpanX > 0 && item.minSpanY > 0) { 3924 minSpanX = item.minSpanX; 3925 minSpanY = item.minSpanY; 3926 } 3927 int[] resultSpan = new int[2]; 3928 mTargetCell = cellLayout.performReorder((int) mDragViewVisualCenter[0], 3929 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, info.spanX, info.spanY, 3930 null, mTargetCell, resultSpan, CellLayout.MODE_ON_DROP_EXTERNAL); 3931 3932 if (resultSpan[0] != item.spanX || resultSpan[1] != item.spanY) { 3933 updateWidgetSize = true; 3934 } 3935 item.spanX = resultSpan[0]; 3936 item.spanY = resultSpan[1]; 3937 } 3938 3939 Runnable onAnimationCompleteRunnable = new Runnable() { 3940 @Override 3941 public void run() { 3942 // Normally removeExtraEmptyScreen is called in Workspace#onDragEnd, but when 3943 // adding an item that may not be dropped right away (due to a config activity) 3944 // we defer the removal until the activity returns. 3945 deferRemoveExtraEmptyScreen(); 3946 3947 // When dragging and dropping from customization tray, we deal with creating 3948 // widgets/shortcuts/folders in a slightly different way 3949 mLauncher.addPendingItem(pendingInfo, container, screenId, mTargetCell, 3950 item.spanX, item.spanY); 3951 } 3952 }; 3953 boolean isWidget = pendingInfo.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET 3954 || pendingInfo.itemType == LauncherSettings.Favorites.ITEM_TYPE_CUSTOM_APPWIDGET; 3955 3956 View finalView = isWidget ? ((PendingAddWidgetInfo) pendingInfo).boundWidget : null; 3957 3958 if (finalView instanceof AppWidgetHostView && updateWidgetSize) { 3959 AppWidgetHostView awhv = (AppWidgetHostView) finalView; 3960 AppWidgetResizeFrame.updateWidgetSizeRanges(awhv, mLauncher, item.spanX, 3961 item.spanY); 3962 } 3963 3964 int animationStyle = ANIMATE_INTO_POSITION_AND_DISAPPEAR; 3965 if (isWidget && ((PendingAddWidgetInfo) pendingInfo).info != null && 3966 ((PendingAddWidgetInfo) pendingInfo).info.configure != null) { 3967 animationStyle = ANIMATE_INTO_POSITION_AND_REMAIN; 3968 } 3969 animateWidgetDrop(info, cellLayout, d.dragView, onAnimationCompleteRunnable, 3970 animationStyle, finalView, true); 3971 } else { 3972 // This is for other drag/drop cases, like dragging from All Apps 3973 View view = null; 3974 3975 switch (info.itemType) { 3976 case LauncherSettings.Favorites.ITEM_TYPE_APPLICATION: 3977 case LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT: 3978 if (info.container == NO_ID && info instanceof AppInfo) { 3979 // Came from all apps -- make a copy 3980 info = ((AppInfo) info).makeShortcut(); 3981 } 3982 view = mLauncher.createShortcut(R.layout.application, cellLayout, 3983 (ShortcutInfo) info); 3984 break; 3985 case LauncherSettings.Favorites.ITEM_TYPE_FOLDER: 3986 view = FolderIcon.fromXml(R.layout.folder_icon, mLauncher, cellLayout, 3987 (FolderInfo) info, mIconCache); 3988 break; 3989 default: 3990 throw new IllegalStateException("Unknown item type: " + info.itemType); 3991 } 3992 3993 // First we find the cell nearest to point at which the item is 3994 // dropped, without any consideration to whether there is an item there. 3995 if (touchXY != null) { 3996 mTargetCell = findNearestArea((int) touchXY[0], (int) touchXY[1], spanX, spanY, 3997 cellLayout, mTargetCell); 3998 float distance = cellLayout.getDistanceFromCell(mDragViewVisualCenter[0], 3999 mDragViewVisualCenter[1], mTargetCell); 4000 d.postAnimationRunnable = exitSpringLoadedRunnable; 4001 if (createUserFolderIfNecessary(view, container, cellLayout, mTargetCell, distance, 4002 true, d.dragView, d.postAnimationRunnable)) { 4003 return; 4004 } 4005 if (addToExistingFolderIfNecessary(view, cellLayout, mTargetCell, distance, d, 4006 true)) { 4007 return; 4008 } 4009 } 4010 4011 if (touchXY != null) { 4012 // when dragging and dropping, just find the closest free spot 4013 mTargetCell = cellLayout.performReorder((int) mDragViewVisualCenter[0], 4014 (int) mDragViewVisualCenter[1], 1, 1, 1, 1, 4015 null, mTargetCell, null, CellLayout.MODE_ON_DROP_EXTERNAL); 4016 } else { 4017 cellLayout.findCellForSpan(mTargetCell, 1, 1); 4018 } 4019 // Add the item to DB before adding to screen ensures that the container and other 4020 // values of the info is properly updated. 4021 LauncherModel.addOrMoveItemInDatabase(mLauncher, info, container, screenId, 4022 mTargetCell[0], mTargetCell[1]); 4023 4024 addInScreen(view, container, screenId, mTargetCell[0], mTargetCell[1], info.spanX, 4025 info.spanY, insertAtFirst); 4026 cellLayout.onDropChild(view); 4027 cellLayout.getShortcutsAndWidgets().measureChild(view); 4028 4029 if (d.dragView != null) { 4030 // We wrap the animation call in the temporary set and reset of the current 4031 // cellLayout to its final transform -- this means we animate the drag view to 4032 // the correct final location. 4033 setFinalTransitionTransform(cellLayout); 4034 mLauncher.getDragLayer().animateViewIntoPosition(d.dragView, view, 4035 exitSpringLoadedRunnable, this); 4036 resetTransitionTransform(cellLayout); 4037 } 4038 } 4039 } 4040 4041 public Bitmap createWidgetBitmap(ItemInfo widgetInfo, View layout) { 4042 int[] unScaledSize = mLauncher.getWorkspace().estimateItemSize(widgetInfo, false); 4043 int visibility = layout.getVisibility(); 4044 layout.setVisibility(VISIBLE); 4045 4046 int width = MeasureSpec.makeMeasureSpec(unScaledSize[0], MeasureSpec.EXACTLY); 4047 int height = MeasureSpec.makeMeasureSpec(unScaledSize[1], MeasureSpec.EXACTLY); 4048 Bitmap b = Bitmap.createBitmap(unScaledSize[0], unScaledSize[1], 4049 Bitmap.Config.ARGB_8888); 4050 mCanvas.setBitmap(b); 4051 4052 layout.measure(width, height); 4053 layout.layout(0, 0, unScaledSize[0], unScaledSize[1]); 4054 layout.draw(mCanvas); 4055 mCanvas.setBitmap(null); 4056 layout.setVisibility(visibility); 4057 return b; 4058 } 4059 4060 private void getFinalPositionForDropAnimation(int[] loc, float[] scaleXY, 4061 DragView dragView, CellLayout layout, ItemInfo info, int[] targetCell, 4062 boolean external, boolean scale) { 4063 // Now we animate the dragView, (ie. the widget or shortcut preview) into its final 4064 // location and size on the home screen. 4065 int spanX = info.spanX; 4066 int spanY = info.spanY; 4067 4068 Rect r = estimateItemPosition(layout, info, targetCell[0], targetCell[1], spanX, spanY); 4069 loc[0] = r.left; 4070 loc[1] = r.top; 4071 4072 setFinalTransitionTransform(layout); 4073 float cellLayoutScale = 4074 mLauncher.getDragLayer().getDescendantCoordRelativeToSelf(layout, loc, true); 4075 resetTransitionTransform(layout); 4076 4077 float dragViewScaleX; 4078 float dragViewScaleY; 4079 if (scale) { 4080 dragViewScaleX = (1.0f * r.width()) / dragView.getMeasuredWidth(); 4081 dragViewScaleY = (1.0f * r.height()) / dragView.getMeasuredHeight(); 4082 } else { 4083 dragViewScaleX = 1f; 4084 dragViewScaleY = 1f; 4085 } 4086 4087 // The animation will scale the dragView about its center, so we need to center about 4088 // the final location. 4089 loc[0] -= (dragView.getMeasuredWidth() - cellLayoutScale * r.width()) / 2; 4090 loc[1] -= (dragView.getMeasuredHeight() - cellLayoutScale * r.height()) / 2; 4091 4092 scaleXY[0] = dragViewScaleX * cellLayoutScale; 4093 scaleXY[1] = dragViewScaleY * cellLayoutScale; 4094 } 4095 4096 public void animateWidgetDrop(ItemInfo info, CellLayout cellLayout, DragView dragView, 4097 final Runnable onCompleteRunnable, int animationType, final View finalView, 4098 boolean external) { 4099 Rect from = new Rect(); 4100 mLauncher.getDragLayer().getViewRectRelativeToSelf(dragView, from); 4101 4102 int[] finalPos = new int[2]; 4103 float scaleXY[] = new float[2]; 4104 boolean scalePreview = !(info instanceof PendingAddShortcutInfo); 4105 getFinalPositionForDropAnimation(finalPos, scaleXY, dragView, cellLayout, info, mTargetCell, 4106 external, scalePreview); 4107 4108 Resources res = mLauncher.getResources(); 4109 final int duration = res.getInteger(R.integer.config_dropAnimMaxDuration) - 200; 4110 4111 // In the case where we've prebound the widget, we remove it from the DragLayer 4112 if (finalView instanceof AppWidgetHostView && external) { 4113 mLauncher.getDragLayer().removeView(finalView); 4114 } 4115 4116 boolean isWidget = info.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET || 4117 info.itemType == LauncherSettings.Favorites.ITEM_TYPE_CUSTOM_APPWIDGET; 4118 if ((animationType == ANIMATE_INTO_POSITION_AND_RESIZE || external) && finalView != null) { 4119 Bitmap crossFadeBitmap = createWidgetBitmap(info, finalView); 4120 dragView.setCrossFadeBitmap(crossFadeBitmap); 4121 dragView.crossFade((int) (duration * 0.8f)); 4122 } else if (isWidget && external) { 4123 scaleXY[0] = scaleXY[1] = Math.min(scaleXY[0], scaleXY[1]); 4124 } 4125 4126 DragLayer dragLayer = mLauncher.getDragLayer(); 4127 if (animationType == CANCEL_TWO_STAGE_WIDGET_DROP_ANIMATION) { 4128 mLauncher.getDragLayer().animateViewIntoPosition(dragView, finalPos, 0f, 0.1f, 0.1f, 4129 DragLayer.ANIMATION_END_DISAPPEAR, onCompleteRunnable, duration); 4130 } else { 4131 int endStyle; 4132 if (animationType == ANIMATE_INTO_POSITION_AND_REMAIN) { 4133 endStyle = DragLayer.ANIMATION_END_REMAIN_VISIBLE; 4134 } else { 4135 endStyle = DragLayer.ANIMATION_END_DISAPPEAR;; 4136 } 4137 4138 Runnable onComplete = new Runnable() { 4139 @Override 4140 public void run() { 4141 if (finalView != null) { 4142 finalView.setVisibility(VISIBLE); 4143 } 4144 if (onCompleteRunnable != null) { 4145 onCompleteRunnable.run(); 4146 } 4147 } 4148 }; 4149 dragLayer.animateViewIntoPosition(dragView, from.left, from.top, finalPos[0], 4150 finalPos[1], 1, 1, 1, scaleXY[0], scaleXY[1], onComplete, endStyle, 4151 duration, this); 4152 } 4153 } 4154 4155 public void setFinalTransitionTransform(CellLayout layout) { 4156 if (isSwitchingState()) { 4157 mCurrentScale = getScaleX(); 4158 setScaleX(mNewScale); 4159 setScaleY(mNewScale); 4160 } 4161 } 4162 public void resetTransitionTransform(CellLayout layout) { 4163 if (isSwitchingState()) { 4164 setScaleX(mCurrentScale); 4165 setScaleY(mCurrentScale); 4166 } 4167 } 4168 4169 /** 4170 * Return the current {@link CellLayout}, correctly picking the destination 4171 * screen while a scroll is in progress. 4172 */ 4173 public CellLayout getCurrentDropLayout() { 4174 return (CellLayout) getChildAt(getNextPage()); 4175 } 4176 4177 /** 4178 * Return the current CellInfo describing our current drag; this method exists 4179 * so that Launcher can sync this object with the correct info when the activity is created/ 4180 * destroyed 4181 * 4182 */ 4183 public CellLayout.CellInfo getDragInfo() { 4184 return mDragInfo; 4185 } 4186 4187 public int getCurrentPageOffsetFromCustomContent() { 4188 return getNextPage() - numCustomPages(); 4189 } 4190 4191 /** 4192 * Calculate the nearest cell where the given object would be dropped. 4193 * 4194 * pixelX and pixelY should be in the coordinate system of layout 4195 */ 4196 @Thunk int[] findNearestArea(int pixelX, int pixelY, 4197 int spanX, int spanY, CellLayout layout, int[] recycle) { 4198 return layout.findNearestArea( 4199 pixelX, pixelY, spanX, spanY, recycle); 4200 } 4201 4202 void setup(DragController dragController) { 4203 mSpringLoadedDragController = new SpringLoadedDragController(mLauncher); 4204 mDragController = dragController; 4205 4206 // hardware layers on children are enabled on startup, but should be disabled until 4207 // needed 4208 updateChildrenLayersEnabled(false); 4209 } 4210 4211 /** 4212 * Called at the end of a drag which originated on the workspace. 4213 */ 4214 public void onDropCompleted(final View target, final DragObject d, 4215 final boolean isFlingToDelete, final boolean success) { 4216 if (mDeferDropAfterUninstall) { 4217 mDeferredAction = new Runnable() { 4218 public void run() { 4219 onDropCompleted(target, d, isFlingToDelete, success); 4220 mDeferredAction = null; 4221 } 4222 }; 4223 return; 4224 } 4225 4226 boolean beingCalledAfterUninstall = mDeferredAction != null; 4227 4228 if (success && !(beingCalledAfterUninstall && !mUninstallSuccessful)) { 4229 if (target != this && mDragInfo != null) { 4230 removeWorkspaceItem(mDragInfo.cell); 4231 } 4232 } else if (mDragInfo != null) { 4233 final CellLayout cellLayout = mLauncher.getCellLayout( 4234 mDragInfo.container, mDragInfo.screenId); 4235 if (cellLayout != null) { 4236 cellLayout.onDropChild(mDragInfo.cell); 4237 } else if (LauncherAppState.isDogfoodBuild()) { 4238 throw new RuntimeException("Invalid state: cellLayout == null in " 4239 + "Workspace#onDropCompleted. Please file a bug. "); 4240 }; 4241 } 4242 if ((d.cancelled || (beingCalledAfterUninstall && !mUninstallSuccessful)) 4243 && mDragInfo.cell != null) { 4244 mDragInfo.cell.setVisibility(VISIBLE); 4245 } 4246 mDragOutline = null; 4247 mDragInfo = null; 4248 } 4249 4250 /** 4251 * For opposite operation. See {@link #addInScreen}. 4252 */ 4253 public void removeWorkspaceItem(View v) { 4254 CellLayout parentCell = getParentCellLayoutForView(v); 4255 if (parentCell != null) { 4256 parentCell.removeView(v); 4257 } else if (LauncherAppState.isDogfoodBuild()) { 4258 throw new NullPointerException("mDragInfo.cell has null parent"); 4259 } 4260 if (v instanceof DropTarget) { 4261 mDragController.removeDropTarget((DropTarget) v); 4262 } 4263 } 4264 4265 public void deferCompleteDropAfterUninstallActivity() { 4266 mDeferDropAfterUninstall = true; 4267 } 4268 4269 /// maybe move this into a smaller part 4270 public void onUninstallActivityReturned(boolean success) { 4271 mDeferDropAfterUninstall = false; 4272 mUninstallSuccessful = success; 4273 if (mDeferredAction != null) { 4274 mDeferredAction.run(); 4275 } 4276 } 4277 4278 void updateItemLocationsInDatabase(CellLayout cl) { 4279 int count = cl.getShortcutsAndWidgets().getChildCount(); 4280 4281 long screenId = getIdForScreen(cl); 4282 int container = Favorites.CONTAINER_DESKTOP; 4283 4284 if (mLauncher.isHotseatLayout(cl)) { 4285 screenId = -1; 4286 container = Favorites.CONTAINER_HOTSEAT; 4287 } 4288 4289 for (int i = 0; i < count; i++) { 4290 View v = cl.getShortcutsAndWidgets().getChildAt(i); 4291 ItemInfo info = (ItemInfo) v.getTag(); 4292 // Null check required as the AllApps button doesn't have an item info 4293 if (info != null && info.requiresDbUpdate) { 4294 info.requiresDbUpdate = false; 4295 LauncherModel.modifyItemInDatabase(mLauncher, info, container, screenId, info.cellX, 4296 info.cellY, info.spanX, info.spanY); 4297 } 4298 } 4299 } 4300 4301 void saveWorkspaceToDb() { 4302 saveWorkspaceScreenToDb((CellLayout) mLauncher.getHotseat().getLayout()); 4303 int count = getChildCount(); 4304 for (int i = 0; i < count; i++) { 4305 CellLayout cl = (CellLayout) getChildAt(i); 4306 saveWorkspaceScreenToDb(cl); 4307 } 4308 } 4309 4310 void saveWorkspaceScreenToDb(CellLayout cl) { 4311 int count = cl.getShortcutsAndWidgets().getChildCount(); 4312 4313 long screenId = getIdForScreen(cl); 4314 int container = Favorites.CONTAINER_DESKTOP; 4315 4316 Hotseat hotseat = mLauncher.getHotseat(); 4317 if (mLauncher.isHotseatLayout(cl)) { 4318 screenId = -1; 4319 container = Favorites.CONTAINER_HOTSEAT; 4320 } 4321 4322 for (int i = 0; i < count; i++) { 4323 View v = cl.getShortcutsAndWidgets().getChildAt(i); 4324 ItemInfo info = (ItemInfo) v.getTag(); 4325 // Null check required as the AllApps button doesn't have an item info 4326 if (info != null) { 4327 int cellX = info.cellX; 4328 int cellY = info.cellY; 4329 if (container == Favorites.CONTAINER_HOTSEAT) { 4330 cellX = hotseat.getCellXFromOrder((int) info.screenId); 4331 cellY = hotseat.getCellYFromOrder((int) info.screenId); 4332 } 4333 LauncherModel.addItemToDatabase(mLauncher, info, container, screenId, cellX, cellY); 4334 } 4335 if (v instanceof FolderIcon) { 4336 FolderIcon fi = (FolderIcon) v; 4337 fi.getFolder().addItemLocationsInDatabase(); 4338 } 4339 } 4340 } 4341 4342 @Override 4343 public float getIntrinsicIconScaleFactor() { 4344 return 1f; 4345 } 4346 4347 @Override 4348 public boolean supportsFlingToDelete() { 4349 return true; 4350 } 4351 4352 @Override 4353 public boolean supportsAppInfoDropTarget() { 4354 return false; 4355 } 4356 4357 @Override 4358 public boolean supportsDeleteDropTarget() { 4359 return true; 4360 } 4361 4362 @Override 4363 public void onFlingToDelete(DragObject d, int x, int y, PointF vec) { 4364 // Do nothing 4365 } 4366 4367 @Override 4368 public void onFlingToDeleteCompleted() { 4369 // Do nothing 4370 } 4371 4372 public boolean isDropEnabled() { 4373 return true; 4374 } 4375 4376 @Override 4377 protected void dispatchRestoreInstanceState(SparseArray<Parcelable> container) { 4378 // We don't dispatch restoreInstanceState to our children using this code path. 4379 // Some pages will be restored immediately as their items are bound immediately, and 4380 // others we will need to wait until after their items are bound. 4381 mSavedStates = container; 4382 } 4383 4384 public void restoreInstanceStateForChild(int child) { 4385 if (mSavedStates != null) { 4386 mRestoredPages.add(child); 4387 CellLayout cl = (CellLayout) getChildAt(child); 4388 if (cl != null) { 4389 cl.restoreInstanceState(mSavedStates); 4390 } 4391 } 4392 } 4393 4394 public void restoreInstanceStateForRemainingPages() { 4395 int count = getChildCount(); 4396 for (int i = 0; i < count; i++) { 4397 if (!mRestoredPages.contains(i)) { 4398 restoreInstanceStateForChild(i); 4399 } 4400 } 4401 mRestoredPages.clear(); 4402 mSavedStates = null; 4403 } 4404 4405 @Override 4406 public void scrollLeft() { 4407 if (!workspaceInModalState() && !mIsSwitchingState) { 4408 super.scrollLeft(); 4409 } 4410 Folder openFolder = getOpenFolder(); 4411 if (openFolder != null) { 4412 openFolder.completeDragExit(); 4413 } 4414 } 4415 4416 @Override 4417 public void scrollRight() { 4418 if (!workspaceInModalState() && !mIsSwitchingState) { 4419 super.scrollRight(); 4420 } 4421 Folder openFolder = getOpenFolder(); 4422 if (openFolder != null) { 4423 openFolder.completeDragExit(); 4424 } 4425 } 4426 4427 @Override 4428 public boolean onEnterScrollArea(int x, int y, int direction) { 4429 // Ignore the scroll area if we are dragging over the hot seat 4430 boolean isPortrait = !LauncherAppState.isScreenLandscape(getContext()); 4431 if (mLauncher.getHotseat() != null && isPortrait) { 4432 Rect r = new Rect(); 4433 mLauncher.getHotseat().getHitRect(r); 4434 if (r.contains(x, y)) { 4435 return false; 4436 } 4437 } 4438 4439 boolean result = false; 4440 if (!workspaceInModalState() && !mIsSwitchingState && getOpenFolder() == null) { 4441 mInScrollArea = true; 4442 4443 final int page = getNextPage() + 4444 (direction == DragController.SCROLL_LEFT ? -1 : 1); 4445 // We always want to exit the current layout to ensure parity of enter / exit 4446 setCurrentDropLayout(null); 4447 4448 if (0 <= page && page < getChildCount()) { 4449 // Ensure that we are not dragging over to the custom content screen 4450 if (getScreenIdForPageIndex(page) == CUSTOM_CONTENT_SCREEN_ID) { 4451 return false; 4452 } 4453 4454 CellLayout layout = (CellLayout) getChildAt(page); 4455 setCurrentDragOverlappingLayout(layout); 4456 4457 // Workspace is responsible for drawing the edge glow on adjacent pages, 4458 // so we need to redraw the workspace when this may have changed. 4459 invalidate(); 4460 result = true; 4461 } 4462 } 4463 return result; 4464 } 4465 4466 @Override 4467 public boolean onExitScrollArea() { 4468 boolean result = false; 4469 if (mInScrollArea) { 4470 invalidate(); 4471 CellLayout layout = getCurrentDropLayout(); 4472 setCurrentDropLayout(layout); 4473 setCurrentDragOverlappingLayout(layout); 4474 4475 result = true; 4476 mInScrollArea = false; 4477 } 4478 return result; 4479 } 4480 4481 private void onResetScrollArea() { 4482 setCurrentDragOverlappingLayout(null); 4483 mInScrollArea = false; 4484 } 4485 4486 /** 4487 * Returns a specific CellLayout 4488 */ 4489 CellLayout getParentCellLayoutForView(View v) { 4490 ArrayList<CellLayout> layouts = getWorkspaceAndHotseatCellLayouts(); 4491 for (CellLayout layout : layouts) { 4492 if (layout.getShortcutsAndWidgets().indexOfChild(v) > -1) { 4493 return layout; 4494 } 4495 } 4496 return null; 4497 } 4498 4499 /** 4500 * Returns a list of all the CellLayouts in the workspace. 4501 */ 4502 ArrayList<CellLayout> getWorkspaceAndHotseatCellLayouts() { 4503 ArrayList<CellLayout> layouts = new ArrayList<CellLayout>(); 4504 int screenCount = getChildCount(); 4505 for (int screen = 0; screen < screenCount; screen++) { 4506 layouts.add(((CellLayout) getChildAt(screen))); 4507 } 4508 if (mLauncher.getHotseat() != null) { 4509 layouts.add(mLauncher.getHotseat().getLayout()); 4510 } 4511 return layouts; 4512 } 4513 4514 /** 4515 * We should only use this to search for specific children. Do not use this method to modify 4516 * ShortcutsAndWidgetsContainer directly. Includes ShortcutAndWidgetContainers from 4517 * the hotseat and workspace pages 4518 */ 4519 ArrayList<ShortcutAndWidgetContainer> getAllShortcutAndWidgetContainers() { 4520 ArrayList<ShortcutAndWidgetContainer> childrenLayouts = 4521 new ArrayList<ShortcutAndWidgetContainer>(); 4522 int screenCount = getChildCount(); 4523 for (int screen = 0; screen < screenCount; screen++) { 4524 childrenLayouts.add(((CellLayout) getChildAt(screen)).getShortcutsAndWidgets()); 4525 } 4526 if (mLauncher.getHotseat() != null) { 4527 childrenLayouts.add(mLauncher.getHotseat().getLayout().getShortcutsAndWidgets()); 4528 } 4529 return childrenLayouts; 4530 } 4531 4532 public Folder getFolderForTag(final Object tag) { 4533 return (Folder) getFirstMatch(new ItemOperator() { 4534 4535 @Override 4536 public boolean evaluate(ItemInfo info, View v, View parent) { 4537 return (v instanceof Folder) && (((Folder) v).getInfo() == tag) 4538 && ((Folder) v).getInfo().opened; 4539 } 4540 }); 4541 } 4542 4543 public View getViewForTag(final Object tag) { 4544 return getFirstMatch(new ItemOperator() { 4545 4546 @Override 4547 public boolean evaluate(ItemInfo info, View v, View parent) { 4548 return info == tag; 4549 } 4550 }); 4551 } 4552 4553 public LauncherAppWidgetHostView getWidgetForAppWidgetId(final int appWidgetId) { 4554 return (LauncherAppWidgetHostView) getFirstMatch(new ItemOperator() { 4555 4556 @Override 4557 public boolean evaluate(ItemInfo info, View v, View parent) { 4558 return (info instanceof LauncherAppWidgetInfo) && 4559 ((LauncherAppWidgetInfo) info).appWidgetId == appWidgetId; 4560 } 4561 }); 4562 } 4563 4564 private View getFirstMatch(final ItemOperator operator) { 4565 final View[] value = new View[1]; 4566 mapOverItems(MAP_NO_RECURSE, new ItemOperator() { 4567 @Override 4568 public boolean evaluate(ItemInfo info, View v, View parent) { 4569 if (operator.evaluate(info, v, parent)) { 4570 value[0] = v; 4571 return true; 4572 } 4573 return false; 4574 } 4575 }); 4576 return value[0]; 4577 } 4578 4579 void clearDropTargets() { 4580 mapOverItems(MAP_NO_RECURSE, new ItemOperator() { 4581 @Override 4582 public boolean evaluate(ItemInfo info, View v, View parent) { 4583 if (v instanceof DropTarget) { 4584 mDragController.removeDropTarget((DropTarget) v); 4585 } 4586 // not done, process all the shortcuts 4587 return false; 4588 } 4589 }); 4590 } 4591 4592 public void disableShortcutsByPackageName(final ArrayList<String> packages, 4593 final UserHandleCompat user, final int reason) { 4594 final HashSet<String> packageNames = new HashSet<String>(); 4595 packageNames.addAll(packages); 4596 4597 mapOverItems(MAP_RECURSE, new ItemOperator() { 4598 @Override 4599 public boolean evaluate(ItemInfo info, View v, View parent) { 4600 if (info instanceof ShortcutInfo && v instanceof BubbleTextView) { 4601 ShortcutInfo shortcutInfo = (ShortcutInfo) info; 4602 ComponentName cn = shortcutInfo.getTargetComponent(); 4603 if (user.equals(shortcutInfo.user) && cn != null 4604 && packageNames.contains(cn.getPackageName())) { 4605 shortcutInfo.isDisabled |= reason; 4606 BubbleTextView shortcut = (BubbleTextView) v; 4607 shortcut.applyFromShortcutInfo(shortcutInfo, mIconCache, true, false); 4608 4609 if (parent != null) { 4610 parent.invalidate(); 4611 } 4612 } 4613 } 4614 // process all the shortcuts 4615 return false; 4616 } 4617 }); 4618 } 4619 4620 // Removes ALL items that match a given package name, this is usually called when a package 4621 // has been removed and we want to remove all components (widgets, shortcuts, apps) that 4622 // belong to that package. 4623 void removeItemsByPackageName(final ArrayList<String> packages, final UserHandleCompat user) { 4624 final HashSet<String> packageNames = new HashSet<String>(); 4625 packageNames.addAll(packages); 4626 4627 // Filter out all the ItemInfos that this is going to affect 4628 final HashSet<ItemInfo> infos = new HashSet<ItemInfo>(); 4629 final HashSet<ComponentName> cns = new HashSet<ComponentName>(); 4630 ArrayList<CellLayout> cellLayouts = getWorkspaceAndHotseatCellLayouts(); 4631 for (CellLayout layoutParent : cellLayouts) { 4632 ViewGroup layout = layoutParent.getShortcutsAndWidgets(); 4633 int childCount = layout.getChildCount(); 4634 for (int i = 0; i < childCount; ++i) { 4635 View view = layout.getChildAt(i); 4636 infos.add((ItemInfo) view.getTag()); 4637 } 4638 } 4639 LauncherModel.ItemInfoFilter filter = new LauncherModel.ItemInfoFilter() { 4640 @Override 4641 public boolean filterItem(ItemInfo parent, ItemInfo info, 4642 ComponentName cn) { 4643 if (packageNames.contains(cn.getPackageName()) 4644 && info.user.equals(user)) { 4645 cns.add(cn); 4646 return true; 4647 } 4648 return false; 4649 } 4650 }; 4651 LauncherModel.filterItemInfos(infos, filter); 4652 4653 // Remove the affected components 4654 removeItemsByComponentName(cns, user); 4655 } 4656 4657 /** 4658 * Removes items that match the item info specified. When applications are removed 4659 * as a part of an update, this is called to ensure that other widgets and application 4660 * shortcuts are not removed. 4661 */ 4662 void removeItemsByComponentName(final HashSet<ComponentName> componentNames, 4663 final UserHandleCompat user) { 4664 ArrayList<CellLayout> cellLayouts = getWorkspaceAndHotseatCellLayouts(); 4665 for (final CellLayout layoutParent: cellLayouts) { 4666 final ViewGroup layout = layoutParent.getShortcutsAndWidgets(); 4667 4668 final HashMap<ItemInfo, View> children = new HashMap<ItemInfo, View>(); 4669 for (int j = 0; j < layout.getChildCount(); j++) { 4670 final View view = layout.getChildAt(j); 4671 children.put((ItemInfo) view.getTag(), view); 4672 } 4673 4674 final ArrayList<View> childrenToRemove = new ArrayList<View>(); 4675 final HashMap<FolderInfo, ArrayList<ShortcutInfo>> folderAppsToRemove = 4676 new HashMap<FolderInfo, ArrayList<ShortcutInfo>>(); 4677 LauncherModel.ItemInfoFilter filter = new LauncherModel.ItemInfoFilter() { 4678 @Override 4679 public boolean filterItem(ItemInfo parent, ItemInfo info, 4680 ComponentName cn) { 4681 if (parent instanceof FolderInfo) { 4682 if (componentNames.contains(cn) && info.user.equals(user)) { 4683 FolderInfo folder = (FolderInfo) parent; 4684 ArrayList<ShortcutInfo> appsToRemove; 4685 if (folderAppsToRemove.containsKey(folder)) { 4686 appsToRemove = folderAppsToRemove.get(folder); 4687 } else { 4688 appsToRemove = new ArrayList<ShortcutInfo>(); 4689 folderAppsToRemove.put(folder, appsToRemove); 4690 } 4691 appsToRemove.add((ShortcutInfo) info); 4692 return true; 4693 } 4694 } else { 4695 if (componentNames.contains(cn) && info.user.equals(user)) { 4696 childrenToRemove.add(children.get(info)); 4697 return true; 4698 } 4699 } 4700 return false; 4701 } 4702 }; 4703 LauncherModel.filterItemInfos(children.keySet(), filter); 4704 4705 // Remove all the apps from their folders 4706 for (FolderInfo folder : folderAppsToRemove.keySet()) { 4707 ArrayList<ShortcutInfo> appsToRemove = folderAppsToRemove.get(folder); 4708 for (ShortcutInfo info : appsToRemove) { 4709 folder.remove(info); 4710 } 4711 } 4712 4713 // Remove all the other children 4714 for (View child : childrenToRemove) { 4715 // Note: We can not remove the view directly from CellLayoutChildren as this 4716 // does not re-mark the spaces as unoccupied. 4717 layoutParent.removeViewInLayout(child); 4718 if (child instanceof DropTarget) { 4719 mDragController.removeDropTarget((DropTarget) child); 4720 } 4721 } 4722 4723 if (childrenToRemove.size() > 0) { 4724 layout.requestLayout(); 4725 layout.invalidate(); 4726 } 4727 } 4728 4729 // Strip all the empty screens 4730 stripEmptyScreens(); 4731 } 4732 4733 interface ItemOperator { 4734 /** 4735 * Process the next itemInfo, possibly with side-effect on {@link ItemOperator#value}. 4736 * 4737 * @param info info for the shortcut 4738 * @param view view for the shortcut 4739 * @param parent containing folder, or null 4740 * @return true if done, false to continue the map 4741 */ 4742 public boolean evaluate(ItemInfo info, View view, View parent); 4743 } 4744 4745 /** 4746 * Map the operator over the shortcuts and widgets, return the first-non-null value. 4747 * 4748 * @param recurse true: iterate over folder children. false: op get the folders themselves. 4749 * @param op the operator to map over the shortcuts 4750 */ 4751 void mapOverItems(boolean recurse, ItemOperator op) { 4752 ArrayList<ShortcutAndWidgetContainer> containers = getAllShortcutAndWidgetContainers(); 4753 final int containerCount = containers.size(); 4754 for (int containerIdx = 0; containerIdx < containerCount; containerIdx++) { 4755 ShortcutAndWidgetContainer container = containers.get(containerIdx); 4756 // map over all the shortcuts on the workspace 4757 final int itemCount = container.getChildCount(); 4758 for (int itemIdx = 0; itemIdx < itemCount; itemIdx++) { 4759 View item = container.getChildAt(itemIdx); 4760 ItemInfo info = (ItemInfo) item.getTag(); 4761 if (recurse && info instanceof FolderInfo && item instanceof FolderIcon) { 4762 FolderIcon folder = (FolderIcon) item; 4763 ArrayList<View> folderChildren = folder.getFolder().getItemsInReadingOrder(); 4764 // map over all the children in the folder 4765 final int childCount = folderChildren.size(); 4766 for (int childIdx = 0; childIdx < childCount; childIdx++) { 4767 View child = folderChildren.get(childIdx); 4768 info = (ItemInfo) child.getTag(); 4769 if (op.evaluate(info, child, folder)) { 4770 return; 4771 } 4772 } 4773 } else { 4774 if (op.evaluate(info, item, null)) { 4775 return; 4776 } 4777 } 4778 } 4779 } 4780 } 4781 4782 void updateShortcuts(ArrayList<ShortcutInfo> shortcuts) { 4783 final HashSet<ShortcutInfo> updates = new HashSet<ShortcutInfo>(shortcuts); 4784 mapOverItems(MAP_RECURSE, new ItemOperator() { 4785 @Override 4786 public boolean evaluate(ItemInfo info, View v, View parent) { 4787 if (info instanceof ShortcutInfo && v instanceof BubbleTextView && 4788 updates.contains(info)) { 4789 ShortcutInfo si = (ShortcutInfo) info; 4790 BubbleTextView shortcut = (BubbleTextView) v; 4791 boolean oldPromiseState = getTextViewIcon(shortcut) 4792 instanceof PreloadIconDrawable; 4793 shortcut.applyFromShortcutInfo(si, mIconCache, true, 4794 si.isPromise() != oldPromiseState); 4795 4796 if (parent != null) { 4797 parent.invalidate(); 4798 } 4799 } 4800 // process all the shortcuts 4801 return false; 4802 } 4803 }); 4804 } 4805 4806 public void removeAbandonedPromise(String packageName, UserHandleCompat user) { 4807 ArrayList<String> packages = new ArrayList<String>(1); 4808 packages.add(packageName); 4809 LauncherModel.deletePackageFromDatabase(mLauncher, packageName, user); 4810 removeItemsByPackageName(packages, user); 4811 } 4812 4813 public void updatePackageBadge(final String packageName, final UserHandleCompat user) { 4814 mapOverItems(MAP_RECURSE, new ItemOperator() { 4815 @Override 4816 public boolean evaluate(ItemInfo info, View v, View parent) { 4817 if (info instanceof ShortcutInfo && v instanceof BubbleTextView) { 4818 ShortcutInfo shortcutInfo = (ShortcutInfo) info; 4819 ComponentName cn = shortcutInfo.getTargetComponent(); 4820 if (user.equals(shortcutInfo.user) && cn != null 4821 && shortcutInfo.isPromise() 4822 && packageName.equals(cn.getPackageName())) { 4823 if (shortcutInfo.hasStatusFlag(ShortcutInfo.FLAG_AUTOINTALL_ICON)) { 4824 // For auto install apps update the icon as well as label. 4825 mIconCache.getTitleAndIcon(shortcutInfo, 4826 shortcutInfo.promisedIntent, user, 4827 shortcutInfo.shouldUseLowResIcon()); 4828 } else { 4829 // Only update the icon for restored apps. 4830 shortcutInfo.updateIcon(mIconCache); 4831 } 4832 BubbleTextView shortcut = (BubbleTextView) v; 4833 shortcut.applyFromShortcutInfo(shortcutInfo, mIconCache, true, false); 4834 4835 if (parent != null) { 4836 parent.invalidate(); 4837 } 4838 } 4839 } 4840 // process all the shortcuts 4841 return false; 4842 } 4843 }); 4844 } 4845 4846 public void updatePackageState(ArrayList<PackageInstallInfo> installInfos) { 4847 for (final PackageInstallInfo installInfo : installInfos) { 4848 if (installInfo.state == PackageInstallerCompat.STATUS_INSTALLED) { 4849 continue; 4850 } 4851 4852 mapOverItems(MAP_RECURSE, new ItemOperator() { 4853 @Override 4854 public boolean evaluate(ItemInfo info, View v, View parent) { 4855 if (info instanceof ShortcutInfo && v instanceof BubbleTextView) { 4856 ShortcutInfo si = (ShortcutInfo) info; 4857 ComponentName cn = si.getTargetComponent(); 4858 if (si.isPromise() && (cn != null) 4859 && installInfo.packageName.equals(cn.getPackageName())) { 4860 si.setInstallProgress(installInfo.progress); 4861 if (installInfo.state == PackageInstallerCompat.STATUS_FAILED) { 4862 // Mark this info as broken. 4863 si.status &= ~ShortcutInfo.FLAG_INSTALL_SESSION_ACTIVE; 4864 } 4865 ((BubbleTextView)v).applyState(false); 4866 } 4867 } else if (v instanceof PendingAppWidgetHostView 4868 && info instanceof LauncherAppWidgetInfo 4869 && ((LauncherAppWidgetInfo) info).providerName.getPackageName() 4870 .equals(installInfo.packageName)) { 4871 ((LauncherAppWidgetInfo) info).installProgress = installInfo.progress; 4872 ((PendingAppWidgetHostView) v).applyState(); 4873 } 4874 4875 // process all the shortcuts 4876 return false; 4877 } 4878 }); 4879 } 4880 } 4881 4882 void widgetsRestored(ArrayList<LauncherAppWidgetInfo> changedInfo) { 4883 if (!changedInfo.isEmpty()) { 4884 DeferredWidgetRefresh widgetRefresh = new DeferredWidgetRefresh(changedInfo, 4885 mLauncher.getAppWidgetHost()); 4886 if (LauncherModel.getProviderInfo(getContext(), 4887 changedInfo.get(0).providerName, 4888 changedInfo.get(0).user) != null) { 4889 // Re-inflate the widgets which have changed status 4890 widgetRefresh.run(); 4891 } else { 4892 // widgetRefresh will automatically run when the packages are updated. 4893 // For now just update the progress bars 4894 for (LauncherAppWidgetInfo info : changedInfo) { 4895 if (info.hostView instanceof PendingAppWidgetHostView) { 4896 info.installProgress = 100; 4897 ((PendingAppWidgetHostView) info.hostView).applyState(); 4898 } 4899 } 4900 } 4901 } 4902 } 4903 4904 private void moveToScreen(int page, boolean animate) { 4905 if (!workspaceInModalState()) { 4906 if (animate) { 4907 snapToPage(page); 4908 } else { 4909 setCurrentPage(page); 4910 } 4911 } 4912 View child = getChildAt(page); 4913 if (child != null) { 4914 child.requestFocus(); 4915 } 4916 } 4917 4918 void moveToDefaultScreen(boolean animate) { 4919 moveToScreen(mDefaultPage, animate); 4920 } 4921 4922 void moveToCustomContentScreen(boolean animate) { 4923 if (hasCustomContent()) { 4924 int ccIndex = getPageIndexForScreenId(CUSTOM_CONTENT_SCREEN_ID); 4925 if (animate) { 4926 snapToPage(ccIndex); 4927 } else { 4928 setCurrentPage(ccIndex); 4929 } 4930 View child = getChildAt(ccIndex); 4931 if (child != null) { 4932 child.requestFocus(); 4933 } 4934 } 4935 exitWidgetResizeMode(); 4936 } 4937 4938 @Override 4939 protected PageIndicator.PageMarkerResources getPageIndicatorMarker(int pageIndex) { 4940 long screenId = getScreenIdForPageIndex(pageIndex); 4941 if (screenId == EXTRA_EMPTY_SCREEN_ID) { 4942 int count = mScreenOrder.size() - numCustomPages(); 4943 if (count > 1) { 4944 return new PageIndicator.PageMarkerResources(R.drawable.ic_pageindicator_current, 4945 R.drawable.ic_pageindicator_add); 4946 } 4947 } 4948 4949 return super.getPageIndicatorMarker(pageIndex); 4950 } 4951 4952 @Override 4953 public void syncPages() { 4954 } 4955 4956 @Override 4957 public void syncPageItems(int page, boolean immediate) { 4958 } 4959 4960 protected String getPageIndicatorDescription() { 4961 String settings = getResources().getString(R.string.settings_button_text); 4962 return getCurrentPageDescription() + ", " + settings; 4963 } 4964 4965 protected String getCurrentPageDescription() { 4966 int page = (mNextPage != INVALID_PAGE) ? mNextPage : mCurrentPage; 4967 int delta = numCustomPages(); 4968 if (hasCustomContent() && getNextPage() == 0) { 4969 return mCustomContentDescription; 4970 } 4971 return String.format(getContext().getString(R.string.workspace_scroll_format), 4972 page + 1 - delta, getChildCount() - delta); 4973 } 4974 4975 public void getLocationInDragLayer(int[] loc) { 4976 mLauncher.getDragLayer().getLocationInDragLayer(this, loc); 4977 } 4978 4979 /** 4980 * Used as a workaround to ensure that the AppWidgetService receives the 4981 * PACKAGE_ADDED broadcast before updating widgets. 4982 */ 4983 private class DeferredWidgetRefresh implements Runnable { 4984 private final ArrayList<LauncherAppWidgetInfo> mInfos; 4985 private final LauncherAppWidgetHost mHost; 4986 private final Handler mHandler; 4987 4988 private boolean mRefreshPending; 4989 4990 public DeferredWidgetRefresh(ArrayList<LauncherAppWidgetInfo> infos, 4991 LauncherAppWidgetHost host) { 4992 mInfos = infos; 4993 mHost = host; 4994 mHandler = new Handler(); 4995 mRefreshPending = true; 4996 4997 mHost.addProviderChangeListener(this); 4998 // Force refresh after 10 seconds, if we don't get the provider changed event. 4999 // This could happen when the provider is no longer available in the app. 5000 mHandler.postDelayed(this, 10000); 5001 } 5002 5003 @Override 5004 public void run() { 5005 mHost.removeProviderChangeListener(this); 5006 mHandler.removeCallbacks(this); 5007 5008 if (!mRefreshPending) { 5009 return; 5010 } 5011 5012 mRefreshPending = false; 5013 5014 for (LauncherAppWidgetInfo info : mInfos) { 5015 if (info.hostView instanceof PendingAppWidgetHostView) { 5016 PendingAppWidgetHostView view = (PendingAppWidgetHostView) info.hostView; 5017 mLauncher.removeAppWidget(info); 5018 5019 CellLayout cl = (CellLayout) view.getParent().getParent(); 5020 // Remove the current widget 5021 cl.removeView(view); 5022 mLauncher.bindAppWidget(info); 5023 } 5024 } 5025 } 5026 } 5027} 5028