Workspace.java revision 97079bc7d55e031f5f804a86c6cc7ff929395838
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.app.WallpaperManager; 30import android.appwidget.AppWidgetHostView; 31import android.appwidget.AppWidgetProviderInfo; 32import android.content.ComponentName; 33import android.content.Context; 34import android.content.SharedPreferences; 35import android.content.res.Resources; 36import android.content.res.TypedArray; 37import android.graphics.Bitmap; 38import android.graphics.Canvas; 39import android.graphics.Matrix; 40import android.graphics.Paint; 41import android.graphics.Point; 42import android.graphics.PointF; 43import android.graphics.Rect; 44import android.graphics.Region.Op; 45import android.graphics.drawable.Drawable; 46import android.os.AsyncTask; 47import android.os.Handler; 48import android.os.IBinder; 49import android.os.Parcelable; 50import android.util.AttributeSet; 51import android.util.Log; 52import android.util.SparseArray; 53import android.view.Choreographer; 54import android.view.Display; 55import android.view.MotionEvent; 56import android.view.View; 57import android.view.ViewGroup; 58import android.view.accessibility.AccessibilityManager; 59import android.view.animation.DecelerateInterpolator; 60import android.view.animation.Interpolator; 61import android.widget.TextView; 62 63import com.android.launcher3.FolderIcon.FolderRingAnimator; 64import com.android.launcher3.Launcher.CustomContentCallbacks; 65import com.android.launcher3.Launcher.LauncherOverlay; 66import com.android.launcher3.LauncherSettings.Favorites; 67import com.android.launcher3.compat.PackageInstallerCompat; 68import com.android.launcher3.compat.PackageInstallerCompat.PackageInstallInfo; 69import com.android.launcher3.compat.UserHandleCompat; 70 71import java.util.ArrayList; 72import java.util.HashMap; 73import java.util.HashSet; 74import java.util.Iterator; 75import java.util.concurrent.atomic.AtomicInteger; 76 77/** 78 * The workspace is a wide area with a wallpaper and a finite number of pages. 79 * Each page contains a number of icons, folders or widgets the user can 80 * interact with. A workspace is meant to be used with a fixed width only. 81 */ 82public class Workspace extends SmoothPagedView 83 implements DropTarget, DragSource, DragScroller, View.OnTouchListener, 84 DragController.DragListener, LauncherTransitionable, ViewGroup.OnHierarchyChangeListener, 85 Insettable { 86 private static final String TAG = "Launcher.Workspace"; 87 88 private static final int CHILDREN_OUTLINE_FADE_OUT_DELAY = 0; 89 private static final int CHILDREN_OUTLINE_FADE_OUT_DURATION = 375; 90 private static final int CHILDREN_OUTLINE_FADE_IN_DURATION = 100; 91 92 protected static final int SNAP_OFF_EMPTY_SCREEN_DURATION = 400; 93 protected static final int FADE_EMPTY_SCREEN_DURATION = 150; 94 95 private static final int BACKGROUND_FADE_OUT_DURATION = 350; 96 private static final int ADJACENT_SCREEN_DROP_DURATION = 300; 97 private static final int FLING_THRESHOLD_VELOCITY = 500; 98 99 private static final float ALPHA_CUTOFF_THRESHOLD = 0.01f; 100 101 static final boolean MAP_NO_RECURSE = false; 102 static final boolean MAP_RECURSE = true; 103 104 // These animators are used to fade the children's outlines 105 private ObjectAnimator mChildrenOutlineFadeInAnimation; 106 private ObjectAnimator mChildrenOutlineFadeOutAnimation; 107 private float mChildrenOutlineAlpha = 0; 108 109 // These properties refer to the background protection gradient used for AllApps and Customize 110 private ValueAnimator mBackgroundFadeInAnimation; 111 private ValueAnimator mBackgroundFadeOutAnimation; 112 113 private static final long CUSTOM_CONTENT_GESTURE_DELAY = 200; 114 private long mTouchDownTime = -1; 115 private long mCustomContentShowTime = -1; 116 117 private LayoutTransition mLayoutTransition; 118 private final WallpaperManager mWallpaperManager; 119 private IBinder mWindowToken; 120 121 private int mOriginalDefaultPage; 122 private int mDefaultPage; 123 124 private ShortcutAndWidgetContainer mDragSourceInternal; 125 private static boolean sAccessibilityEnabled; 126 127 // The screen id used for the empty screen always present to the right. 128 final static long EXTRA_EMPTY_SCREEN_ID = -201; 129 private final static long CUSTOM_CONTENT_SCREEN_ID = -301; 130 131 private HashMap<Long, CellLayout> mWorkspaceScreens = new HashMap<Long, CellLayout>(); 132 private ArrayList<Long> mScreenOrder = new ArrayList<Long>(); 133 134 private Runnable mRemoveEmptyScreenRunnable; 135 private boolean mDeferRemoveExtraEmptyScreen = false; 136 137 /** 138 * CellInfo for the cell that is currently being dragged 139 */ 140 private CellLayout.CellInfo mDragInfo; 141 142 /** 143 * Target drop area calculated during last acceptDrop call. 144 */ 145 private int[] mTargetCell = new int[2]; 146 private int mDragOverX = -1; 147 private int mDragOverY = -1; 148 149 static Rect mLandscapeCellLayoutMetrics = null; 150 static Rect mPortraitCellLayoutMetrics = null; 151 152 CustomContentCallbacks mCustomContentCallbacks; 153 boolean mCustomContentShowing; 154 private float mLastCustomContentScrollProgress = -1f; 155 private String mCustomContentDescription = ""; 156 157 /** 158 * The CellLayout that is currently being dragged over 159 */ 160 private CellLayout mDragTargetLayout = null; 161 /** 162 * The CellLayout that we will show as glowing 163 */ 164 private CellLayout mDragOverlappingLayout = null; 165 166 /** 167 * The CellLayout which will be dropped to 168 */ 169 private CellLayout mDropToLayout = null; 170 171 private Launcher mLauncher; 172 private IconCache mIconCache; 173 private DragController mDragController; 174 175 // These are temporary variables to prevent having to allocate a new object just to 176 // return an (x, y) value from helper functions. Do NOT use them to maintain other state. 177 private int[] mTempCell = new int[2]; 178 private int[] mTempPt = new int[2]; 179 private int[] mTempEstimate = new int[2]; 180 private float[] mDragViewVisualCenter = new float[2]; 181 private float[] mTempCellLayoutCenterCoordinates = new float[2]; 182 private Matrix mTempInverseMatrix = new Matrix(); 183 184 private SpringLoadedDragController mSpringLoadedDragController; 185 private float mSpringLoadedShrinkFactor; 186 private float mOverviewModeShrinkFactor; 187 188 // State variable that indicates whether the pages are small (ie when you're 189 // in all apps or customize mode) 190 191 enum State { NORMAL, NORMAL_HIDDEN, SPRING_LOADED, OVERVIEW, OVERVIEW_HIDDEN}; 192 private State mState = State.NORMAL; 193 private boolean mIsSwitchingState = false; 194 195 boolean mAnimatingViewIntoPlace = false; 196 boolean mIsDragOccuring = false; 197 boolean mChildrenLayersEnabled = true; 198 199 private boolean mStripScreensOnPageStopMoving = false; 200 201 /** Is the user is dragging an item near the edge of a page? */ 202 private boolean mInScrollArea = false; 203 204 private HolographicOutlineHelper mOutlineHelper; 205 private Bitmap mDragOutline = null; 206 private static final Rect sTempRect = new Rect(); 207 private final int[] mTempXY = new int[2]; 208 private int[] mTempVisiblePagesRange = new int[2]; 209 private boolean mOverscrollEffectSet; 210 public static final int DRAG_BITMAP_PADDING = 2; 211 private boolean mWorkspaceFadeInAdjacentScreens; 212 213 WallpaperOffsetInterpolator mWallpaperOffset; 214 private boolean mWallpaperIsLiveWallpaper; 215 private int mNumPagesForWallpaperParallax; 216 private float mLastSetWallpaperOffsetSteps = 0; 217 218 private Runnable mDelayedResizeRunnable; 219 private Runnable mDelayedSnapToPageRunnable; 220 private Point mDisplaySize = new Point(); 221 222 // Variables relating to the creation of user folders by hovering shortcuts over shortcuts 223 private static final int FOLDER_CREATION_TIMEOUT = 0; 224 public static final int REORDER_TIMEOUT = 350; 225 private final Alarm mFolderCreationAlarm = new Alarm(); 226 private final Alarm mReorderAlarm = new Alarm(); 227 private FolderRingAnimator mDragFolderRingAnimator = null; 228 private FolderIcon mDragOverFolderIcon = null; 229 private boolean mCreateUserFolderOnDrop = false; 230 private boolean mAddToExistingFolderOnDrop = false; 231 private DropTarget.DragEnforcer mDragEnforcer; 232 private float mMaxDistanceForFolderCreation; 233 234 private final Canvas mCanvas = new Canvas(); 235 236 // Variables relating to touch disambiguation (scrolling workspace vs. scrolling a widget) 237 private float mXDown; 238 private float mYDown; 239 final static float START_DAMPING_TOUCH_SLOP_ANGLE = (float) Math.PI / 6; 240 final static float MAX_SWIPE_ANGLE = (float) Math.PI / 3; 241 final static float TOUCH_SLOP_DAMPING_FACTOR = 4; 242 243 // Relating to the animation of items being dropped externally 244 public static final int ANIMATE_INTO_POSITION_AND_DISAPPEAR = 0; 245 public static final int ANIMATE_INTO_POSITION_AND_REMAIN = 1; 246 public static final int ANIMATE_INTO_POSITION_AND_RESIZE = 2; 247 public static final int COMPLETE_TWO_STAGE_WIDGET_DROP_ANIMATION = 3; 248 public static final int CANCEL_TWO_STAGE_WIDGET_DROP_ANIMATION = 4; 249 250 // Related to dragging, folder creation and reordering 251 private static final int DRAG_MODE_NONE = 0; 252 private static final int DRAG_MODE_CREATE_FOLDER = 1; 253 private static final int DRAG_MODE_ADD_TO_FOLDER = 2; 254 private static final int DRAG_MODE_REORDER = 3; 255 private int mDragMode = DRAG_MODE_NONE; 256 private int mLastReorderX = -1; 257 private int mLastReorderY = -1; 258 259 private SparseArray<Parcelable> mSavedStates; 260 private final ArrayList<Integer> mRestoredPages = new ArrayList<Integer>(); 261 262 // These variables are used for storing the initial and final values during workspace animations 263 private int mSavedScrollX; 264 private float mSavedRotationY; 265 private float mSavedTranslationX; 266 267 private float mCurrentScale; 268 private float mNewScale; 269 private float[] mOldBackgroundAlphas; 270 private float[] mOldAlphas; 271 private float[] mNewBackgroundAlphas; 272 private float[] mNewAlphas; 273 private int mLastChildCount = -1; 274 private float mTransitionProgress; 275 private Animator mStateAnimator = null; 276 277 float mOverScrollEffect = 0f; 278 279 private Runnable mDeferredAction; 280 private boolean mDeferDropAfterUninstall; 281 private boolean mUninstallSuccessful; 282 283 // State related to Launcher Overlay 284 LauncherOverlay mLauncherOverlay; 285 boolean mScrollInteractionBegan; 286 boolean mStartedSendingScrollEvents; 287 boolean mShouldSendPageSettled; 288 int mLastOverlaySroll = 0; 289 290 private final Runnable mBindPages = new Runnable() { 291 @Override 292 public void run() { 293 mLauncher.getModel().bindRemainingSynchronousPages(); 294 } 295 }; 296 297 /** 298 * Used to inflate the Workspace from XML. 299 * 300 * @param context The application's context. 301 * @param attrs The attributes set containing the Workspace's customization values. 302 */ 303 public Workspace(Context context, AttributeSet attrs) { 304 this(context, attrs, 0); 305 } 306 307 /** 308 * Used to inflate the Workspace from XML. 309 * 310 * @param context The application's context. 311 * @param attrs The attributes set containing the Workspace's customization values. 312 * @param defStyle Unused. 313 */ 314 public Workspace(Context context, AttributeSet attrs, int defStyle) { 315 super(context, attrs, defStyle); 316 mContentIsRefreshable = false; 317 318 mOutlineHelper = HolographicOutlineHelper.obtain(context); 319 320 mDragEnforcer = new DropTarget.DragEnforcer(context); 321 // With workspace, data is available straight from the get-go 322 setDataIsReady(); 323 324 mLauncher = (Launcher) context; 325 final Resources res = getResources(); 326 mWorkspaceFadeInAdjacentScreens = LauncherAppState.getInstance().getDynamicGrid(). 327 getDeviceProfile().shouldFadeAdjacentWorkspaceScreens(); 328 mFadeInAdjacentScreens = false; 329 mWallpaperManager = WallpaperManager.getInstance(context); 330 331 LauncherAppState app = LauncherAppState.getInstance(); 332 DeviceProfile grid = app.getDynamicGrid().getDeviceProfile(); 333 TypedArray a = context.obtainStyledAttributes(attrs, 334 R.styleable.Workspace, defStyle, 0); 335 mSpringLoadedShrinkFactor = 336 res.getInteger(R.integer.config_workspaceSpringLoadShrinkPercentage) / 100.0f; 337 mOverviewModeShrinkFactor = grid.getOverviewModeScale(); 338 mOriginalDefaultPage = mDefaultPage = a.getInt(R.styleable.Workspace_defaultScreen, 1); 339 a.recycle(); 340 341 setOnHierarchyChangeListener(this); 342 setHapticFeedbackEnabled(false); 343 344 initWorkspace(); 345 346 // Disable multitouch across the workspace/all apps/customize tray 347 setMotionEventSplittingEnabled(true); 348 setImportantForAccessibility(View.IMPORTANT_FOR_ACCESSIBILITY_YES); 349 } 350 351 @Override 352 public void setInsets(Rect insets) { 353 mInsets.set(insets); 354 355 CellLayout customScreen = getScreenWithId(CUSTOM_CONTENT_SCREEN_ID); 356 if (customScreen != null) { 357 View customContent = customScreen.getShortcutsAndWidgets().getChildAt(0); 358 if (customContent instanceof Insettable) { 359 ((Insettable) customContent).setInsets(mInsets); 360 } 361 } 362 } 363 364 // estimate the size of a widget with spans hSpan, vSpan. return MAX_VALUE for each 365 // dimension if unsuccessful 366 public int[] estimateItemSize(int hSpan, int vSpan, 367 ItemInfo itemInfo, boolean springLoaded) { 368 int[] size = new int[2]; 369 if (getChildCount() > 0) { 370 // Use the first non-custom page to estimate the child position 371 CellLayout cl = (CellLayout) getChildAt(numCustomPages()); 372 Rect r = estimateItemPosition(cl, itemInfo, 0, 0, hSpan, vSpan); 373 size[0] = r.width(); 374 size[1] = r.height(); 375 if (springLoaded) { 376 size[0] *= mSpringLoadedShrinkFactor; 377 size[1] *= mSpringLoadedShrinkFactor; 378 } 379 return size; 380 } else { 381 size[0] = Integer.MAX_VALUE; 382 size[1] = Integer.MAX_VALUE; 383 return size; 384 } 385 } 386 387 public Rect estimateItemPosition(CellLayout cl, ItemInfo pendingInfo, 388 int hCell, int vCell, int hSpan, int vSpan) { 389 Rect r = new Rect(); 390 cl.cellToRect(hCell, vCell, hSpan, vSpan, r); 391 return r; 392 } 393 394 public void onDragStart(final DragSource source, Object info, int dragAction) { 395 mIsDragOccuring = true; 396 updateChildrenLayersEnabled(false); 397 mLauncher.lockScreenOrientation(); 398 mLauncher.onInteractionBegin(); 399 setChildrenBackgroundAlphaMultipliers(1f); 400 // Prevent any Un/InstallShortcutReceivers from updating the db while we are dragging 401 InstallShortcutReceiver.enableInstallQueue(); 402 UninstallShortcutReceiver.enableUninstallQueue(); 403 post(new Runnable() { 404 @Override 405 public void run() { 406 if (mIsDragOccuring) { 407 mDeferRemoveExtraEmptyScreen = false; 408 addExtraEmptyScreenOnDrag(); 409 } 410 } 411 }); 412 } 413 414 415 public void deferRemoveExtraEmptyScreen() { 416 mDeferRemoveExtraEmptyScreen = true; 417 } 418 419 public void onDragEnd() { 420 if (!mDeferRemoveExtraEmptyScreen) { 421 removeExtraEmptyScreen(true, mDragSourceInternal != null); 422 } 423 424 mIsDragOccuring = false; 425 updateChildrenLayersEnabled(false); 426 mLauncher.unlockScreenOrientation(false); 427 428 // Re-enable any Un/InstallShortcutReceiver and now process any queued items 429 InstallShortcutReceiver.disableAndFlushInstallQueue(getContext()); 430 UninstallShortcutReceiver.disableAndFlushUninstallQueue(getContext()); 431 432 mDragSourceInternal = null; 433 mLauncher.onInteractionEnd(); 434 } 435 436 /** 437 * Initializes various states for this workspace. 438 */ 439 protected void initWorkspace() { 440 mCurrentPage = mDefaultPage; 441 LauncherAppState app = LauncherAppState.getInstance(); 442 DeviceProfile grid = app.getDynamicGrid().getDeviceProfile(); 443 mIconCache = app.getIconCache(); 444 setWillNotDraw(false); 445 setClipChildren(false); 446 setClipToPadding(false); 447 setChildrenDrawnWithCacheEnabled(true); 448 449 setMinScale(mOverviewModeShrinkFactor); 450 setupLayoutTransition(); 451 452 mWallpaperOffset = new WallpaperOffsetInterpolator(); 453 Display display = mLauncher.getWindowManager().getDefaultDisplay(); 454 display.getSize(mDisplaySize); 455 456 mMaxDistanceForFolderCreation = (0.55f * grid.iconSizePx); 457 mFlingThresholdVelocity = (int) (FLING_THRESHOLD_VELOCITY * mDensity); 458 459 // Set the wallpaper dimensions when Launcher starts up 460 setWallpaperDimension(); 461 } 462 463 private void setupLayoutTransition() { 464 // We want to show layout transitions when pages are deleted, to close the gap. 465 mLayoutTransition = new LayoutTransition(); 466 mLayoutTransition.enableTransitionType(LayoutTransition.DISAPPEARING); 467 mLayoutTransition.enableTransitionType(LayoutTransition.CHANGE_DISAPPEARING); 468 mLayoutTransition.disableTransitionType(LayoutTransition.APPEARING); 469 mLayoutTransition.disableTransitionType(LayoutTransition.CHANGE_APPEARING); 470 setLayoutTransition(mLayoutTransition); 471 } 472 473 void enableLayoutTransitions() { 474 setLayoutTransition(mLayoutTransition); 475 } 476 void disableLayoutTransitions() { 477 setLayoutTransition(null); 478 } 479 480 @Override 481 protected int getScrollMode() { 482 return SmoothPagedView.X_LARGE_MODE; 483 } 484 485 @Override 486 public void onChildViewAdded(View parent, View child) { 487 if (!(child instanceof CellLayout)) { 488 throw new IllegalArgumentException("A Workspace can only have CellLayout children."); 489 } 490 CellLayout cl = ((CellLayout) child); 491 cl.setOnInterceptTouchListener(this); 492 cl.setClickable(true); 493 cl.setImportantForAccessibility(IMPORTANT_FOR_ACCESSIBILITY_NO); 494 super.onChildViewAdded(parent, child); 495 } 496 497 protected boolean shouldDrawChild(View child) { 498 final CellLayout cl = (CellLayout) child; 499 return super.shouldDrawChild(child) && 500 (mIsSwitchingState || 501 cl.getShortcutsAndWidgets().getAlpha() > 0 || 502 cl.getBackgroundAlpha() > 0); 503 } 504 505 /** 506 * @return The open folder on the current screen, or null if there is none 507 */ 508 Folder getOpenFolder() { 509 DragLayer dragLayer = mLauncher.getDragLayer(); 510 int count = dragLayer.getChildCount(); 511 for (int i = 0; i < count; i++) { 512 View child = dragLayer.getChildAt(i); 513 if (child instanceof Folder) { 514 Folder folder = (Folder) child; 515 if (folder.getInfo().opened) 516 return folder; 517 } 518 } 519 return null; 520 } 521 522 boolean isTouchActive() { 523 return mTouchState != TOUCH_STATE_REST; 524 } 525 526 public void removeAllWorkspaceScreens() { 527 // Disable all layout transitions before removing all pages to ensure that we don't get the 528 // transition animations competing with us changing the scroll when we add pages or the 529 // custom content screen 530 disableLayoutTransitions(); 531 532 // Since we increment the current page when we call addCustomContentPage via bindScreens 533 // (and other places), we need to adjust the current page back when we clear the pages 534 if (hasCustomContent()) { 535 removeCustomContentPage(); 536 } 537 538 // Remove the pages and clear the screen models 539 removeAllViews(); 540 mScreenOrder.clear(); 541 mWorkspaceScreens.clear(); 542 543 // Re-enable the layout transitions 544 enableLayoutTransitions(); 545 } 546 547 public long insertNewWorkspaceScreenBeforeEmptyScreen(long screenId) { 548 // Find the index to insert this view into. If the empty screen exists, then 549 // insert it before that. 550 int insertIndex = mScreenOrder.indexOf(EXTRA_EMPTY_SCREEN_ID); 551 if (insertIndex < 0) { 552 insertIndex = mScreenOrder.size(); 553 } 554 return insertNewWorkspaceScreen(screenId, insertIndex); 555 } 556 557 public long insertNewWorkspaceScreen(long screenId) { 558 return insertNewWorkspaceScreen(screenId, getChildCount()); 559 } 560 561 public long insertNewWorkspaceScreen(long screenId, int insertIndex) { 562 if (mWorkspaceScreens.containsKey(screenId)) { 563 throw new RuntimeException("Screen id " + screenId + " already exists!"); 564 } 565 566 CellLayout newScreen = (CellLayout) 567 mLauncher.getLayoutInflater().inflate(R.layout.workspace_screen, null); 568 569 newScreen.setOnLongClickListener(mLongClickListener); 570 newScreen.setOnClickListener(mLauncher); 571 newScreen.setSoundEffectsEnabled(false); 572 mWorkspaceScreens.put(screenId, newScreen); 573 mScreenOrder.add(insertIndex, screenId); 574 addView(newScreen, insertIndex); 575 return screenId; 576 } 577 578 public void createCustomContentContainer() { 579 CellLayout customScreen = (CellLayout) 580 mLauncher.getLayoutInflater().inflate(R.layout.workspace_screen, null); 581 customScreen.disableBackground(); 582 customScreen.disableDragTarget(); 583 584 mWorkspaceScreens.put(CUSTOM_CONTENT_SCREEN_ID, customScreen); 585 mScreenOrder.add(0, CUSTOM_CONTENT_SCREEN_ID); 586 587 // We want no padding on the custom content 588 customScreen.setPadding(0, 0, 0, 0); 589 590 addFullScreenPage(customScreen); 591 592 // Ensure that the current page and default page are maintained. 593 mDefaultPage = mOriginalDefaultPage + 1; 594 595 // Update the custom content hint 596 if (mRestorePage != INVALID_RESTORE_PAGE) { 597 mRestorePage = mRestorePage + 1; 598 } else { 599 setCurrentPage(getCurrentPage() + 1); 600 } 601 } 602 603 public void removeCustomContentPage() { 604 CellLayout customScreen = getScreenWithId(CUSTOM_CONTENT_SCREEN_ID); 605 if (customScreen == null) { 606 throw new RuntimeException("Expected custom content screen to exist"); 607 } 608 609 mWorkspaceScreens.remove(CUSTOM_CONTENT_SCREEN_ID); 610 mScreenOrder.remove(CUSTOM_CONTENT_SCREEN_ID); 611 removeView(customScreen); 612 613 if (mCustomContentCallbacks != null) { 614 mCustomContentCallbacks.onScrollProgressChanged(0); 615 mCustomContentCallbacks.onHide(); 616 } 617 618 mCustomContentCallbacks = null; 619 620 // Ensure that the current page and default page are maintained. 621 mDefaultPage = mOriginalDefaultPage - 1; 622 623 // Update the custom content hint 624 if (mRestorePage != INVALID_RESTORE_PAGE) { 625 mRestorePage = mRestorePage - 1; 626 } else { 627 setCurrentPage(getCurrentPage() - 1); 628 } 629 } 630 631 public void addToCustomContentPage(View customContent, CustomContentCallbacks callbacks, 632 String description) { 633 if (getPageIndexForScreenId(CUSTOM_CONTENT_SCREEN_ID) < 0) { 634 throw new RuntimeException("Expected custom content screen to exist"); 635 } 636 637 // Add the custom content to the full screen custom page 638 CellLayout customScreen = getScreenWithId(CUSTOM_CONTENT_SCREEN_ID); 639 int spanX = customScreen.getCountX(); 640 int spanY = customScreen.getCountY(); 641 CellLayout.LayoutParams lp = new CellLayout.LayoutParams(0, 0, spanX, spanY); 642 lp.canReorder = false; 643 lp.isFullscreen = true; 644 if (customContent instanceof Insettable) { 645 ((Insettable)customContent).setInsets(mInsets); 646 } 647 648 // Verify that the child is removed from any existing parent. 649 if (customContent.getParent() instanceof ViewGroup) { 650 ViewGroup parent = (ViewGroup) customContent.getParent(); 651 parent.removeView(customContent); 652 } 653 customScreen.removeAllViews(); 654 customScreen.addViewToCellLayout(customContent, 0, 0, lp, true); 655 mCustomContentDescription = description; 656 657 mCustomContentCallbacks = callbacks; 658 } 659 660 public void addExtraEmptyScreenOnDrag() { 661 boolean lastChildOnScreen = false; 662 boolean childOnFinalScreen = false; 663 664 // Cancel any pending removal of empty screen 665 mRemoveEmptyScreenRunnable = null; 666 667 if (mDragSourceInternal != null) { 668 if (mDragSourceInternal.getChildCount() == 1) { 669 lastChildOnScreen = true; 670 } 671 CellLayout cl = (CellLayout) mDragSourceInternal.getParent(); 672 if (indexOfChild(cl) == getChildCount() - 1) { 673 childOnFinalScreen = true; 674 } 675 } 676 677 // If this is the last item on the final screen 678 if (lastChildOnScreen && childOnFinalScreen) { 679 return; 680 } 681 if (!mWorkspaceScreens.containsKey(EXTRA_EMPTY_SCREEN_ID)) { 682 insertNewWorkspaceScreen(EXTRA_EMPTY_SCREEN_ID); 683 } 684 } 685 686 public boolean addExtraEmptyScreen() { 687 if (!mWorkspaceScreens.containsKey(EXTRA_EMPTY_SCREEN_ID)) { 688 insertNewWorkspaceScreen(EXTRA_EMPTY_SCREEN_ID); 689 return true; 690 } 691 return false; 692 } 693 694 private void convertFinalScreenToEmptyScreenIfNecessary() { 695 if (mLauncher.isWorkspaceLoading()) { 696 // Invalid and dangerous operation if workspace is loading 697 Launcher.addDumpLog(TAG, " - workspace loading, skip", true); 698 return; 699 } 700 701 if (hasExtraEmptyScreen() || mScreenOrder.size() == 0) return; 702 long finalScreenId = mScreenOrder.get(mScreenOrder.size() - 1); 703 704 if (finalScreenId == CUSTOM_CONTENT_SCREEN_ID) return; 705 CellLayout finalScreen = mWorkspaceScreens.get(finalScreenId); 706 707 // If the final screen is empty, convert it to the extra empty screen 708 if (finalScreen.getShortcutsAndWidgets().getChildCount() == 0 && 709 !finalScreen.isDropPending()) { 710 mWorkspaceScreens.remove(finalScreenId); 711 mScreenOrder.remove(finalScreenId); 712 713 // if this is the last non-custom content screen, convert it to the empty screen 714 mWorkspaceScreens.put(EXTRA_EMPTY_SCREEN_ID, finalScreen); 715 mScreenOrder.add(EXTRA_EMPTY_SCREEN_ID); 716 717 // Update the model if we have changed any screens 718 mLauncher.getModel().updateWorkspaceScreenOrder(mLauncher, mScreenOrder); 719 } 720 } 721 722 public void removeExtraEmptyScreen(final boolean animate, boolean stripEmptyScreens) { 723 removeExtraEmptyScreenDelayed(animate, null, 0, stripEmptyScreens); 724 } 725 726 public void removeExtraEmptyScreenDelayed(final boolean animate, final Runnable onComplete, 727 final int delay, final boolean stripEmptyScreens) { 728 if (mLauncher.isWorkspaceLoading()) { 729 // Don't strip empty screens if the workspace is still loading 730 Launcher.addDumpLog(TAG, " - workspace loading, skip", true); 731 return; 732 } 733 734 if (delay > 0) { 735 postDelayed(new Runnable() { 736 @Override 737 public void run() { 738 removeExtraEmptyScreenDelayed(animate, onComplete, 0, stripEmptyScreens); 739 } 740 }, delay); 741 return; 742 } 743 744 convertFinalScreenToEmptyScreenIfNecessary(); 745 if (hasExtraEmptyScreen()) { 746 int emptyIndex = mScreenOrder.indexOf(EXTRA_EMPTY_SCREEN_ID); 747 if (getNextPage() == emptyIndex) { 748 snapToPage(getNextPage() - 1, SNAP_OFF_EMPTY_SCREEN_DURATION); 749 fadeAndRemoveEmptyScreen(SNAP_OFF_EMPTY_SCREEN_DURATION, FADE_EMPTY_SCREEN_DURATION, 750 onComplete, stripEmptyScreens); 751 } else { 752 fadeAndRemoveEmptyScreen(0, FADE_EMPTY_SCREEN_DURATION, 753 onComplete, stripEmptyScreens); 754 } 755 return; 756 } else if (stripEmptyScreens) { 757 // If we're not going to strip the empty screens after removing 758 // the extra empty screen, do it right away. 759 stripEmptyScreens(); 760 } 761 762 if (onComplete != null) { 763 onComplete.run(); 764 } 765 } 766 767 private void fadeAndRemoveEmptyScreen(int delay, int duration, final Runnable onComplete, 768 final boolean stripEmptyScreens) { 769 // XXX: Do we need to update LM workspace screens below? 770 PropertyValuesHolder alpha = PropertyValuesHolder.ofFloat("alpha", 0f); 771 PropertyValuesHolder bgAlpha = PropertyValuesHolder.ofFloat("backgroundAlpha", 0f); 772 773 final CellLayout cl = mWorkspaceScreens.get(EXTRA_EMPTY_SCREEN_ID); 774 775 mRemoveEmptyScreenRunnable = new Runnable() { 776 @Override 777 public void run() { 778 if (hasExtraEmptyScreen()) { 779 mWorkspaceScreens.remove(EXTRA_EMPTY_SCREEN_ID); 780 mScreenOrder.remove(EXTRA_EMPTY_SCREEN_ID); 781 removeView(cl); 782 if (stripEmptyScreens) { 783 stripEmptyScreens(); 784 } 785 } 786 } 787 }; 788 789 ObjectAnimator oa = ObjectAnimator.ofPropertyValuesHolder(cl, alpha, bgAlpha); 790 oa.setDuration(duration); 791 oa.setStartDelay(delay); 792 oa.addListener(new AnimatorListenerAdapter() { 793 @Override 794 public void onAnimationEnd(Animator animation) { 795 if (mRemoveEmptyScreenRunnable != null) { 796 mRemoveEmptyScreenRunnable.run(); 797 } 798 if (onComplete != null) { 799 onComplete.run(); 800 } 801 } 802 }); 803 oa.start(); 804 } 805 806 public boolean hasExtraEmptyScreen() { 807 int nScreens = getChildCount(); 808 nScreens = nScreens - numCustomPages(); 809 return mWorkspaceScreens.containsKey(EXTRA_EMPTY_SCREEN_ID) && nScreens > 1; 810 } 811 812 public long commitExtraEmptyScreen() { 813 if (mLauncher.isWorkspaceLoading()) { 814 // Invalid and dangerous operation if workspace is loading 815 Launcher.addDumpLog(TAG, " - workspace loading, skip", true); 816 return -1; 817 } 818 819 int index = getPageIndexForScreenId(EXTRA_EMPTY_SCREEN_ID); 820 CellLayout cl = mWorkspaceScreens.get(EXTRA_EMPTY_SCREEN_ID); 821 mWorkspaceScreens.remove(EXTRA_EMPTY_SCREEN_ID); 822 mScreenOrder.remove(EXTRA_EMPTY_SCREEN_ID); 823 824 long newId = LauncherAppState.getLauncherProvider().generateNewScreenId(); 825 mWorkspaceScreens.put(newId, cl); 826 mScreenOrder.add(newId); 827 828 // Update the page indicator marker 829 if (getPageIndicator() != null) { 830 getPageIndicator().updateMarker(index, getPageIndicatorMarker(index)); 831 } 832 833 // Update the model for the new screen 834 mLauncher.getModel().updateWorkspaceScreenOrder(mLauncher, mScreenOrder); 835 836 return newId; 837 } 838 839 public CellLayout getScreenWithId(long screenId) { 840 CellLayout layout = mWorkspaceScreens.get(screenId); 841 return layout; 842 } 843 844 public long getIdForScreen(CellLayout layout) { 845 Iterator<Long> iter = mWorkspaceScreens.keySet().iterator(); 846 while (iter.hasNext()) { 847 long id = iter.next(); 848 if (mWorkspaceScreens.get(id) == layout) { 849 return id; 850 } 851 } 852 return -1; 853 } 854 855 public int getPageIndexForScreenId(long screenId) { 856 return indexOfChild(mWorkspaceScreens.get(screenId)); 857 } 858 859 public long getScreenIdForPageIndex(int index) { 860 if (0 <= index && index < mScreenOrder.size()) { 861 return mScreenOrder.get(index); 862 } 863 return -1; 864 } 865 866 ArrayList<Long> getScreenOrder() { 867 return mScreenOrder; 868 } 869 870 public void stripEmptyScreens() { 871 if (mLauncher.isWorkspaceLoading()) { 872 // Don't strip empty screens if the workspace is still loading. 873 // This is dangerous and can result in data loss. 874 Launcher.addDumpLog(TAG, " - workspace loading, skip", true); 875 return; 876 } 877 878 if (isPageMoving()) { 879 mStripScreensOnPageStopMoving = true; 880 return; 881 } 882 883 int currentPage = getNextPage(); 884 ArrayList<Long> removeScreens = new ArrayList<Long>(); 885 for (Long id: mWorkspaceScreens.keySet()) { 886 CellLayout cl = mWorkspaceScreens.get(id); 887 if (id >= 0 && cl.getShortcutsAndWidgets().getChildCount() == 0) { 888 removeScreens.add(id); 889 } 890 } 891 892 // We enforce at least one page to add new items to. In the case that we remove the last 893 // such screen, we convert the last screen to the empty screen 894 int minScreens = 1 + numCustomPages(); 895 896 int pageShift = 0; 897 for (Long id: removeScreens) { 898 CellLayout cl = mWorkspaceScreens.get(id); 899 mWorkspaceScreens.remove(id); 900 mScreenOrder.remove(id); 901 902 if (getChildCount() > minScreens) { 903 if (indexOfChild(cl) < currentPage) { 904 pageShift++; 905 } 906 removeView(cl); 907 } else { 908 // if this is the last non-custom content screen, convert it to the empty screen 909 mRemoveEmptyScreenRunnable = null; 910 mWorkspaceScreens.put(EXTRA_EMPTY_SCREEN_ID, cl); 911 mScreenOrder.add(EXTRA_EMPTY_SCREEN_ID); 912 } 913 } 914 915 if (!removeScreens.isEmpty()) { 916 // Update the model if we have changed any screens 917 mLauncher.getModel().updateWorkspaceScreenOrder(mLauncher, mScreenOrder); 918 } 919 920 if (pageShift >= 0) { 921 setCurrentPage(currentPage - pageShift); 922 } 923 } 924 925 // See implementation for parameter definition. 926 void addInScreen(View child, long container, long screenId, 927 int x, int y, int spanX, int spanY) { 928 addInScreen(child, container, screenId, x, y, spanX, spanY, false, false); 929 } 930 931 // At bind time, we use the rank (screenId) to compute x and y for hotseat items. 932 // See implementation for parameter definition. 933 void addInScreenFromBind(View child, long container, long screenId, int x, int y, 934 int spanX, int spanY) { 935 addInScreen(child, container, screenId, x, y, spanX, spanY, false, true); 936 } 937 938 // See implementation for parameter definition. 939 void addInScreen(View child, long container, long screenId, int x, int y, int spanX, int spanY, 940 boolean insert) { 941 addInScreen(child, container, screenId, x, y, spanX, spanY, insert, false); 942 } 943 944 /** 945 * Adds the specified child in the specified screen. The position and dimension of 946 * the child are defined by x, y, spanX and spanY. 947 * 948 * @param child The child to add in one of the workspace's screens. 949 * @param screenId The screen in which to add the child. 950 * @param x The X position of the child in the screen's grid. 951 * @param y The Y position of the child in the screen's grid. 952 * @param spanX The number of cells spanned horizontally by the child. 953 * @param spanY The number of cells spanned vertically by the child. 954 * @param insert When true, the child is inserted at the beginning of the children list. 955 * @param computeXYFromRank When true, we use the rank (stored in screenId) to compute 956 * the x and y position in which to place hotseat items. Otherwise 957 * we use the x and y position to compute the rank. 958 */ 959 void addInScreen(View child, long container, long screenId, int x, int y, int spanX, int spanY, 960 boolean insert, boolean computeXYFromRank) { 961 if (container == LauncherSettings.Favorites.CONTAINER_DESKTOP) { 962 if (getScreenWithId(screenId) == null) { 963 Log.e(TAG, "Skipping child, screenId " + screenId + " not found"); 964 // DEBUGGING - Print out the stack trace to see where we are adding from 965 new Throwable().printStackTrace(); 966 return; 967 } 968 } 969 if (screenId == EXTRA_EMPTY_SCREEN_ID) { 970 // This should never happen 971 throw new RuntimeException("Screen id should not be EXTRA_EMPTY_SCREEN_ID"); 972 } 973 974 final CellLayout layout; 975 if (container == LauncherSettings.Favorites.CONTAINER_HOTSEAT) { 976 layout = mLauncher.getHotseat().getLayout(); 977 child.setOnKeyListener(new HotseatIconKeyEventListener()); 978 979 // Hide folder title in the hotseat 980 if (child instanceof FolderIcon) { 981 ((FolderIcon) child).setTextVisible(false); 982 } 983 984 if (computeXYFromRank) { 985 x = mLauncher.getHotseat().getCellXFromOrder((int) screenId); 986 y = mLauncher.getHotseat().getCellYFromOrder((int) screenId); 987 } else { 988 screenId = mLauncher.getHotseat().getOrderInHotseat(x, y); 989 } 990 } else { 991 // Show folder title if not in the hotseat 992 if (child instanceof FolderIcon) { 993 ((FolderIcon) child).setTextVisible(true); 994 } 995 layout = getScreenWithId(screenId); 996 child.setOnKeyListener(new IconKeyEventListener()); 997 } 998 999 ViewGroup.LayoutParams genericLp = child.getLayoutParams(); 1000 CellLayout.LayoutParams lp; 1001 if (genericLp == null || !(genericLp instanceof CellLayout.LayoutParams)) { 1002 lp = new CellLayout.LayoutParams(x, y, spanX, spanY); 1003 } else { 1004 lp = (CellLayout.LayoutParams) genericLp; 1005 lp.cellX = x; 1006 lp.cellY = y; 1007 lp.cellHSpan = spanX; 1008 lp.cellVSpan = spanY; 1009 } 1010 1011 if (spanX < 0 && spanY < 0) { 1012 lp.isLockedToGrid = false; 1013 } 1014 1015 // Get the canonical child id to uniquely represent this view in this screen 1016 ItemInfo info = (ItemInfo) child.getTag(); 1017 int childId = mLauncher.getViewIdForItem(info); 1018 1019 boolean markCellsAsOccupied = !(child instanceof Folder); 1020 if (!layout.addViewToCellLayout(child, insert ? 0 : -1, childId, lp, markCellsAsOccupied)) { 1021 // TODO: This branch occurs when the workspace is adding views 1022 // outside of the defined grid 1023 // maybe we should be deleting these items from the LauncherModel? 1024 Launcher.addDumpLog(TAG, "Failed to add to item at (" + lp.cellX + "," + lp.cellY + ") to CellLayout", true); 1025 } 1026 1027 if (!(child instanceof Folder)) { 1028 child.setHapticFeedbackEnabled(false); 1029 child.setOnLongClickListener(mLongClickListener); 1030 } 1031 if (child instanceof DropTarget) { 1032 mDragController.addDropTarget((DropTarget) child); 1033 } 1034 } 1035 1036 /** 1037 * Called directly from a CellLayout (not by the framework), after we've been added as a 1038 * listener via setOnInterceptTouchEventListener(). This allows us to tell the CellLayout 1039 * that it should intercept touch events, which is not something that is normally supported. 1040 */ 1041 @Override 1042 public boolean onTouch(View v, MotionEvent event) { 1043 return (workspaceInModalState() || !isFinishedSwitchingState()) 1044 || (!workspaceInModalState() && indexOfChild(v) != mCurrentPage); 1045 } 1046 1047 public boolean isSwitchingState() { 1048 return mIsSwitchingState; 1049 } 1050 1051 /** This differs from isSwitchingState in that we take into account how far the transition 1052 * has completed. */ 1053 public boolean isFinishedSwitchingState() { 1054 return !mIsSwitchingState || (mTransitionProgress > 0.5f); 1055 } 1056 1057 protected void onWindowVisibilityChanged (int visibility) { 1058 mLauncher.onWindowVisibilityChanged(visibility); 1059 } 1060 1061 @Override 1062 public boolean dispatchUnhandledMove(View focused, int direction) { 1063 if (workspaceInModalState() || !isFinishedSwitchingState()) { 1064 // when the home screens are shrunken, shouldn't allow side-scrolling 1065 return false; 1066 } 1067 return super.dispatchUnhandledMove(focused, direction); 1068 } 1069 1070 @Override 1071 public boolean onInterceptTouchEvent(MotionEvent ev) { 1072 switch (ev.getAction() & MotionEvent.ACTION_MASK) { 1073 case MotionEvent.ACTION_DOWN: 1074 mXDown = ev.getX(); 1075 mYDown = ev.getY(); 1076 mTouchDownTime = System.currentTimeMillis(); 1077 break; 1078 case MotionEvent.ACTION_POINTER_UP: 1079 case MotionEvent.ACTION_UP: 1080 if (mTouchState == TOUCH_STATE_REST) { 1081 final CellLayout currentPage = (CellLayout) getChildAt(mCurrentPage); 1082 if (currentPage != null && !currentPage.lastDownOnOccupiedCell()) { 1083 onWallpaperTap(ev); 1084 } 1085 } 1086 } 1087 return super.onInterceptTouchEvent(ev); 1088 } 1089 1090 @Override 1091 public boolean onGenericMotionEvent(MotionEvent event) { 1092 // Ignore pointer scroll events if the custom content doesn't allow scrolling. 1093 if ((getScreenIdForPageIndex(getCurrentPage()) == CUSTOM_CONTENT_SCREEN_ID) 1094 && (mCustomContentCallbacks != null) 1095 && !mCustomContentCallbacks.isScrollingAllowed()) { 1096 return false; 1097 } 1098 return super.onGenericMotionEvent(event); 1099 } 1100 1101 protected void reinflateWidgetsIfNecessary() { 1102 final int clCount = getChildCount(); 1103 for (int i = 0; i < clCount; i++) { 1104 CellLayout cl = (CellLayout) getChildAt(i); 1105 ShortcutAndWidgetContainer swc = cl.getShortcutsAndWidgets(); 1106 final int itemCount = swc.getChildCount(); 1107 for (int j = 0; j < itemCount; j++) { 1108 View v = swc.getChildAt(j); 1109 1110 if (v != null && v.getTag() instanceof LauncherAppWidgetInfo) { 1111 LauncherAppWidgetInfo info = (LauncherAppWidgetInfo) v.getTag(); 1112 LauncherAppWidgetHostView lahv = (LauncherAppWidgetHostView) info.hostView; 1113 if (lahv != null && lahv.isReinflateRequired()) { 1114 mLauncher.removeAppWidget(info); 1115 // Remove the current widget which is inflated with the wrong orientation 1116 cl.removeView(lahv); 1117 mLauncher.bindAppWidget(info); 1118 } 1119 } 1120 } 1121 } 1122 } 1123 1124 @Override 1125 protected void determineScrollingStart(MotionEvent ev) { 1126 if (!isFinishedSwitchingState()) return; 1127 1128 float deltaX = ev.getX() - mXDown; 1129 float absDeltaX = Math.abs(deltaX); 1130 float absDeltaY = Math.abs(ev.getY() - mYDown); 1131 1132 if (Float.compare(absDeltaX, 0f) == 0) return; 1133 1134 float slope = absDeltaY / absDeltaX; 1135 float theta = (float) Math.atan(slope); 1136 1137 if (absDeltaX > mTouchSlop || absDeltaY > mTouchSlop) { 1138 cancelCurrentPageLongPress(); 1139 } 1140 1141 boolean passRightSwipesToCustomContent = 1142 (mTouchDownTime - mCustomContentShowTime) > CUSTOM_CONTENT_GESTURE_DELAY; 1143 1144 boolean swipeInIgnoreDirection = isLayoutRtl() ? deltaX < 0 : deltaX > 0; 1145 boolean onCustomContentScreen = 1146 getScreenIdForPageIndex(getCurrentPage()) == CUSTOM_CONTENT_SCREEN_ID; 1147 if (swipeInIgnoreDirection && onCustomContentScreen && passRightSwipesToCustomContent) { 1148 // Pass swipes to the right to the custom content page. 1149 return; 1150 } 1151 1152 if (onCustomContentScreen && (mCustomContentCallbacks != null) 1153 && !mCustomContentCallbacks.isScrollingAllowed()) { 1154 // Don't allow workspace scrolling if the current custom content screen doesn't allow 1155 // scrolling. 1156 return; 1157 } 1158 1159 if (theta > MAX_SWIPE_ANGLE) { 1160 // Above MAX_SWIPE_ANGLE, we don't want to ever start scrolling the workspace 1161 return; 1162 } else if (theta > START_DAMPING_TOUCH_SLOP_ANGLE) { 1163 // Above START_DAMPING_TOUCH_SLOP_ANGLE and below MAX_SWIPE_ANGLE, we want to 1164 // increase the touch slop to make it harder to begin scrolling the workspace. This 1165 // results in vertically scrolling widgets to more easily. The higher the angle, the 1166 // more we increase touch slop. 1167 theta -= START_DAMPING_TOUCH_SLOP_ANGLE; 1168 float extraRatio = (float) 1169 Math.sqrt((theta / (MAX_SWIPE_ANGLE - START_DAMPING_TOUCH_SLOP_ANGLE))); 1170 super.determineScrollingStart(ev, 1 + TOUCH_SLOP_DAMPING_FACTOR * extraRatio); 1171 } else { 1172 // Below START_DAMPING_TOUCH_SLOP_ANGLE, we don't do anything special 1173 super.determineScrollingStart(ev); 1174 } 1175 } 1176 1177 protected void onPageBeginMoving() { 1178 super.onPageBeginMoving(); 1179 1180 if (isHardwareAccelerated()) { 1181 updateChildrenLayersEnabled(false); 1182 } else { 1183 if (mNextPage != INVALID_PAGE) { 1184 // we're snapping to a particular screen 1185 enableChildrenCache(mCurrentPage, mNextPage); 1186 } else { 1187 // this is when user is actively dragging a particular screen, they might 1188 // swipe it either left or right (but we won't advance by more than one screen) 1189 enableChildrenCache(mCurrentPage - 1, mCurrentPage + 1); 1190 } 1191 } 1192 } 1193 1194 protected void onPageEndMoving() { 1195 super.onPageEndMoving(); 1196 1197 if (isHardwareAccelerated()) { 1198 updateChildrenLayersEnabled(false); 1199 } else { 1200 clearChildrenCache(); 1201 } 1202 1203 if (mDragController.isDragging()) { 1204 if (workspaceInModalState()) { 1205 // If we are in springloaded mode, then force an event to check if the current touch 1206 // is under a new page (to scroll to) 1207 mDragController.forceTouchMove(); 1208 } 1209 } 1210 1211 if (mDelayedResizeRunnable != null) { 1212 mDelayedResizeRunnable.run(); 1213 mDelayedResizeRunnable = null; 1214 } 1215 1216 if (mDelayedSnapToPageRunnable != null) { 1217 mDelayedSnapToPageRunnable.run(); 1218 mDelayedSnapToPageRunnable = null; 1219 } 1220 if (mStripScreensOnPageStopMoving) { 1221 stripEmptyScreens(); 1222 mStripScreensOnPageStopMoving = false; 1223 } 1224 1225 if (mShouldSendPageSettled) { 1226 mLauncherOverlay.onScrollSettled(); 1227 mShouldSendPageSettled = false; 1228 } 1229 } 1230 1231 protected void onScrollInteractionBegin() { 1232 super.onScrollInteractionEnd(); 1233 mScrollInteractionBegan = true; 1234 } 1235 1236 protected void onScrollInteractionEnd() { 1237 super.onScrollInteractionEnd(); 1238 mScrollInteractionBegan = false; 1239 if (mStartedSendingScrollEvents) { 1240 mStartedSendingScrollEvents = false; 1241 mLauncherOverlay.onScrollInteractionEnd(); 1242 } 1243 } 1244 1245 public void setLauncherOverlay(LauncherOverlay overlay) { 1246 mLauncherOverlay = overlay; 1247 } 1248 1249 @Override 1250 protected void overScroll(float amount) { 1251 boolean isRtl = isLayoutRtl(); 1252 boolean shouldOverScroll = (amount <= 0 && (!hasCustomContent() || isRtl)) || 1253 (amount >= 0 && (!hasCustomContent() || !isRtl)); 1254 1255 boolean shouldScrollOverlay = mLauncherOverlay != null && 1256 ((amount <= 0 && !isRtl) || (amount >= 0 && isRtl)); 1257 1258 boolean shouldZeroOverlay = mLauncherOverlay != null && mLastOverlaySroll != 0 && 1259 ((amount >= 0 && !isRtl) || (amount <= 0 && isRtl)); 1260 1261 if (shouldScrollOverlay) { 1262 if (!mStartedSendingScrollEvents && mScrollInteractionBegan) { 1263 mStartedSendingScrollEvents = true; 1264 mLauncherOverlay.onScrollInteractionBegin(); 1265 mShouldSendPageSettled = true; 1266 } 1267 int screenSize = getViewportWidth(); 1268 float f = (amount / screenSize); 1269 1270 int progress = (int) Math.abs((f * 100)); 1271 1272 mLastOverlaySroll = progress; 1273 mLauncherOverlay.onScrollChange(progress, isRtl); 1274 } else if (shouldOverScroll) { 1275 dampedOverScroll(amount); 1276 mOverScrollEffect = acceleratedOverFactor(amount); 1277 } else { 1278 mOverScrollEffect = 0; 1279 } 1280 1281 if (shouldZeroOverlay) { 1282 mLauncherOverlay.onScrollChange(0, isRtl); 1283 } 1284 } 1285 1286 @Override 1287 protected void notifyPageSwitchListener() { 1288 super.notifyPageSwitchListener(); 1289 1290 if (hasCustomContent() && getNextPage() == 0 && !mCustomContentShowing) { 1291 mCustomContentShowing = true; 1292 if (mCustomContentCallbacks != null) { 1293 mCustomContentCallbacks.onShow(false); 1294 mCustomContentShowTime = System.currentTimeMillis(); 1295 } 1296 } else if (hasCustomContent() && getNextPage() != 0 && mCustomContentShowing) { 1297 mCustomContentShowing = false; 1298 if (mCustomContentCallbacks != null) { 1299 mCustomContentCallbacks.onHide(); 1300 } 1301 } 1302 } 1303 1304 protected CustomContentCallbacks getCustomContentCallbacks() { 1305 return mCustomContentCallbacks; 1306 } 1307 1308 protected void setWallpaperDimension() { 1309 new AsyncTask<Void, Void, Void>() { 1310 public Void doInBackground(Void ... args) { 1311 String spKey = WallpaperCropActivity.getSharedPreferencesKey(); 1312 SharedPreferences sp = 1313 mLauncher.getSharedPreferences(spKey, Context.MODE_MULTI_PROCESS); 1314 LauncherWallpaperPickerActivity.suggestWallpaperDimension(mLauncher.getResources(), 1315 sp, mLauncher.getWindowManager(), mWallpaperManager, 1316 mLauncher.overrideWallpaperDimensions()); 1317 return null; 1318 } 1319 }.executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR, (Void) null); 1320 } 1321 1322 protected void snapToPage(int whichPage, Runnable r) { 1323 snapToPage(whichPage, SLOW_PAGE_SNAP_ANIMATION_DURATION, r); 1324 } 1325 1326 protected void snapToPage(int whichPage, int duration, Runnable r) { 1327 if (mDelayedSnapToPageRunnable != null) { 1328 mDelayedSnapToPageRunnable.run(); 1329 } 1330 mDelayedSnapToPageRunnable = r; 1331 snapToPage(whichPage, duration); 1332 } 1333 1334 public void snapToScreenId(long screenId) { 1335 snapToScreenId(screenId, null); 1336 } 1337 1338 protected void snapToScreenId(long screenId, Runnable r) { 1339 snapToPage(getPageIndexForScreenId(screenId), r); 1340 } 1341 1342 class WallpaperOffsetInterpolator implements Choreographer.FrameCallback { 1343 float mFinalOffset = 0.0f; 1344 float mCurrentOffset = 0.5f; // to force an initial update 1345 boolean mWaitingForUpdate; 1346 Choreographer mChoreographer; 1347 Interpolator mInterpolator; 1348 boolean mAnimating; 1349 long mAnimationStartTime; 1350 float mAnimationStartOffset; 1351 private final int ANIMATION_DURATION = 250; 1352 // Don't use all the wallpaper for parallax until you have at least this many pages 1353 private final int MIN_PARALLAX_PAGE_SPAN = 3; 1354 int mNumScreens; 1355 1356 public WallpaperOffsetInterpolator() { 1357 mChoreographer = Choreographer.getInstance(); 1358 mInterpolator = new DecelerateInterpolator(1.5f); 1359 } 1360 1361 @Override 1362 public void doFrame(long frameTimeNanos) { 1363 updateOffset(false); 1364 } 1365 1366 private void updateOffset(boolean force) { 1367 if (mWaitingForUpdate || force) { 1368 mWaitingForUpdate = false; 1369 if (computeScrollOffset() && mWindowToken != null) { 1370 try { 1371 mWallpaperManager.setWallpaperOffsets(mWindowToken, 1372 mWallpaperOffset.getCurrX(), 0.5f); 1373 setWallpaperOffsetSteps(); 1374 } catch (IllegalArgumentException e) { 1375 Log.e(TAG, "Error updating wallpaper offset: " + e); 1376 } 1377 } 1378 } 1379 } 1380 1381 public boolean computeScrollOffset() { 1382 final float oldOffset = mCurrentOffset; 1383 if (mAnimating) { 1384 long durationSinceAnimation = System.currentTimeMillis() - mAnimationStartTime; 1385 float t0 = durationSinceAnimation / (float) ANIMATION_DURATION; 1386 float t1 = mInterpolator.getInterpolation(t0); 1387 mCurrentOffset = mAnimationStartOffset + 1388 (mFinalOffset - mAnimationStartOffset) * t1; 1389 mAnimating = durationSinceAnimation < ANIMATION_DURATION; 1390 } else { 1391 mCurrentOffset = mFinalOffset; 1392 } 1393 1394 if (Math.abs(mCurrentOffset - mFinalOffset) > 0.0000001f) { 1395 scheduleUpdate(); 1396 } 1397 if (Math.abs(oldOffset - mCurrentOffset) > 0.0000001f) { 1398 return true; 1399 } 1400 return false; 1401 } 1402 1403 private float wallpaperOffsetForCurrentScroll() { 1404 if (getChildCount() <= 1) { 1405 return 0; 1406 } 1407 1408 // Exclude the leftmost page 1409 int emptyExtraPages = numEmptyScreensToIgnore(); 1410 int firstIndex = numCustomPages(); 1411 // Exclude the last extra empty screen (if we have > MIN_PARALLAX_PAGE_SPAN pages) 1412 int lastIndex = getChildCount() - 1 - emptyExtraPages; 1413 if (isLayoutRtl()) { 1414 int temp = firstIndex; 1415 firstIndex = lastIndex; 1416 lastIndex = temp; 1417 } 1418 1419 int firstPageScrollX = getScrollForPage(firstIndex); 1420 int scrollRange = getScrollForPage(lastIndex) - firstPageScrollX; 1421 if (scrollRange == 0) { 1422 return 0; 1423 } else { 1424 // TODO: do different behavior if it's a live wallpaper? 1425 // Sometimes the left parameter of the pages is animated during a layout transition; 1426 // this parameter offsets it to keep the wallpaper from animating as well 1427 int adjustedScroll = 1428 getScrollX() - firstPageScrollX - getLayoutTransitionOffsetForPage(0); 1429 float offset = Math.min(1, adjustedScroll / (float) scrollRange); 1430 offset = Math.max(0, offset); 1431 // Don't use up all the wallpaper parallax until you have at least 1432 // MIN_PARALLAX_PAGE_SPAN pages 1433 int numScrollingPages = getNumScreensExcludingEmptyAndCustom(); 1434 int parallaxPageSpan; 1435 if (mWallpaperIsLiveWallpaper) { 1436 parallaxPageSpan = numScrollingPages - 1; 1437 } else { 1438 parallaxPageSpan = Math.max(MIN_PARALLAX_PAGE_SPAN, numScrollingPages - 1); 1439 } 1440 mNumPagesForWallpaperParallax = parallaxPageSpan; 1441 1442 // On RTL devices, push the wallpaper offset to the right if we don't have enough 1443 // pages (ie if numScrollingPages < MIN_PARALLAX_PAGE_SPAN) 1444 int padding = isLayoutRtl() ? parallaxPageSpan - numScrollingPages + 1 : 0; 1445 return offset * (padding + numScrollingPages - 1) / parallaxPageSpan; 1446 } 1447 } 1448 1449 private int numEmptyScreensToIgnore() { 1450 int numScrollingPages = getChildCount() - numCustomPages(); 1451 if (numScrollingPages >= MIN_PARALLAX_PAGE_SPAN && hasExtraEmptyScreen()) { 1452 return 1; 1453 } else { 1454 return 0; 1455 } 1456 } 1457 1458 private int getNumScreensExcludingEmptyAndCustom() { 1459 int numScrollingPages = getChildCount() - numEmptyScreensToIgnore() - numCustomPages(); 1460 return numScrollingPages; 1461 } 1462 1463 public void syncWithScroll() { 1464 float offset = wallpaperOffsetForCurrentScroll(); 1465 mWallpaperOffset.setFinalX(offset); 1466 updateOffset(true); 1467 } 1468 1469 public float getCurrX() { 1470 return mCurrentOffset; 1471 } 1472 1473 public float getFinalX() { 1474 return mFinalOffset; 1475 } 1476 1477 private void animateToFinal() { 1478 mAnimating = true; 1479 mAnimationStartOffset = mCurrentOffset; 1480 mAnimationStartTime = System.currentTimeMillis(); 1481 } 1482 1483 private void setWallpaperOffsetSteps() { 1484 // Set wallpaper offset steps (1 / (number of screens - 1)) 1485 float xOffset = 1.0f / mNumPagesForWallpaperParallax; 1486 if (xOffset != mLastSetWallpaperOffsetSteps) { 1487 mWallpaperManager.setWallpaperOffsetSteps(xOffset, 1.0f); 1488 mLastSetWallpaperOffsetSteps = xOffset; 1489 } 1490 } 1491 1492 public void setFinalX(float x) { 1493 scheduleUpdate(); 1494 mFinalOffset = Math.max(0f, Math.min(x, 1.0f)); 1495 if (getNumScreensExcludingEmptyAndCustom() != mNumScreens) { 1496 if (mNumScreens > 0) { 1497 // Don't animate if we're going from 0 screens 1498 animateToFinal(); 1499 } 1500 mNumScreens = getNumScreensExcludingEmptyAndCustom(); 1501 } 1502 } 1503 1504 private void scheduleUpdate() { 1505 if (!mWaitingForUpdate) { 1506 mChoreographer.postFrameCallback(this); 1507 mWaitingForUpdate = true; 1508 } 1509 } 1510 1511 public void jumpToFinal() { 1512 mCurrentOffset = mFinalOffset; 1513 } 1514 } 1515 1516 @Override 1517 public void computeScroll() { 1518 super.computeScroll(); 1519 mWallpaperOffset.syncWithScroll(); 1520 } 1521 1522 @Override 1523 public void announceForAccessibility(CharSequence text) { 1524 // Don't announce if apps is on top of us. 1525 if (!mLauncher.isAllAppsVisible()) { 1526 super.announceForAccessibility(text); 1527 } 1528 } 1529 1530 void showOutlines() { 1531 if (!workspaceInModalState() && !mIsSwitchingState) { 1532 if (mChildrenOutlineFadeOutAnimation != null) mChildrenOutlineFadeOutAnimation.cancel(); 1533 if (mChildrenOutlineFadeInAnimation != null) mChildrenOutlineFadeInAnimation.cancel(); 1534 mChildrenOutlineFadeInAnimation = LauncherAnimUtils.ofFloat(this, "childrenOutlineAlpha", 1.0f); 1535 mChildrenOutlineFadeInAnimation.setDuration(CHILDREN_OUTLINE_FADE_IN_DURATION); 1536 mChildrenOutlineFadeInAnimation.start(); 1537 } 1538 } 1539 1540 void hideOutlines() { 1541 if (!workspaceInModalState() && !mIsSwitchingState) { 1542 if (mChildrenOutlineFadeInAnimation != null) mChildrenOutlineFadeInAnimation.cancel(); 1543 if (mChildrenOutlineFadeOutAnimation != null) mChildrenOutlineFadeOutAnimation.cancel(); 1544 mChildrenOutlineFadeOutAnimation = LauncherAnimUtils.ofFloat(this, "childrenOutlineAlpha", 0.0f); 1545 mChildrenOutlineFadeOutAnimation.setDuration(CHILDREN_OUTLINE_FADE_OUT_DURATION); 1546 mChildrenOutlineFadeOutAnimation.setStartDelay(CHILDREN_OUTLINE_FADE_OUT_DELAY); 1547 mChildrenOutlineFadeOutAnimation.start(); 1548 } 1549 } 1550 1551 public void showOutlinesTemporarily() { 1552 if (!mIsPageMoving && !isTouchActive()) { 1553 snapToPage(mCurrentPage); 1554 } 1555 } 1556 1557 public void setChildrenOutlineAlpha(float alpha) { 1558 mChildrenOutlineAlpha = alpha; 1559 for (int i = 0; i < getChildCount(); i++) { 1560 CellLayout cl = (CellLayout) getChildAt(i); 1561 cl.setBackgroundAlpha(alpha); 1562 } 1563 } 1564 1565 public float getChildrenOutlineAlpha() { 1566 return mChildrenOutlineAlpha; 1567 } 1568 1569 private void animateBackgroundGradient(float finalAlpha, boolean animated) { 1570 final DragLayer dragLayer = mLauncher.getDragLayer(); 1571 1572 if (mBackgroundFadeInAnimation != null) { 1573 mBackgroundFadeInAnimation.cancel(); 1574 mBackgroundFadeInAnimation = null; 1575 } 1576 if (mBackgroundFadeOutAnimation != null) { 1577 mBackgroundFadeOutAnimation.cancel(); 1578 mBackgroundFadeOutAnimation = null; 1579 } 1580 float startAlpha = dragLayer.getBackgroundAlpha(); 1581 if (finalAlpha != startAlpha) { 1582 if (animated) { 1583 mBackgroundFadeOutAnimation = 1584 LauncherAnimUtils.ofFloat(this, startAlpha, finalAlpha); 1585 mBackgroundFadeOutAnimation.addUpdateListener(new AnimatorUpdateListener() { 1586 public void onAnimationUpdate(ValueAnimator animation) { 1587 dragLayer.setBackgroundAlpha( 1588 ((Float)animation.getAnimatedValue()).floatValue()); 1589 } 1590 }); 1591 mBackgroundFadeOutAnimation.setInterpolator(new DecelerateInterpolator(1.5f)); 1592 mBackgroundFadeOutAnimation.setDuration(BACKGROUND_FADE_OUT_DURATION); 1593 mBackgroundFadeOutAnimation.start(); 1594 } else { 1595 dragLayer.setBackgroundAlpha(finalAlpha); 1596 } 1597 } 1598 } 1599 1600 float backgroundAlphaInterpolator(float r) { 1601 float pivotA = 0.1f; 1602 float pivotB = 0.4f; 1603 if (r < pivotA) { 1604 return 0; 1605 } else if (r > pivotB) { 1606 return 1.0f; 1607 } else { 1608 return (r - pivotA)/(pivotB - pivotA); 1609 } 1610 } 1611 1612 private void updatePageAlphaValues(int screenCenter) { 1613 boolean isInOverscroll = mOverScrollX < 0 || mOverScrollX > mMaxScrollX; 1614 if (mWorkspaceFadeInAdjacentScreens && 1615 !workspaceInModalState() && 1616 !mIsSwitchingState && 1617 !isInOverscroll) { 1618 for (int i = numCustomPages(); i < getChildCount(); i++) { 1619 CellLayout child = (CellLayout) getChildAt(i); 1620 if (child != null) { 1621 float scrollProgress = getScrollProgress(screenCenter, child, i); 1622 float alpha = 1 - Math.abs(scrollProgress); 1623 child.getShortcutsAndWidgets().setAlpha(alpha); 1624 //child.setBackgroundAlphaMultiplier(1 - alpha); 1625 } 1626 } 1627 } 1628 } 1629 1630 private void setChildrenBackgroundAlphaMultipliers(float a) { 1631 for (int i = 0; i < getChildCount(); i++) { 1632 CellLayout child = (CellLayout) getChildAt(i); 1633 child.setBackgroundAlphaMultiplier(a); 1634 } 1635 } 1636 1637 public boolean hasCustomContent() { 1638 return (mScreenOrder.size() > 0 && mScreenOrder.get(0) == CUSTOM_CONTENT_SCREEN_ID); 1639 } 1640 1641 public int numCustomPages() { 1642 return hasCustomContent() ? 1 : 0; 1643 } 1644 1645 public boolean isOnOrMovingToCustomContent() { 1646 return hasCustomContent() && getNextPage() == 0; 1647 } 1648 1649 private void updateStateForCustomContent(int screenCenter) { 1650 float translationX = 0; 1651 float progress = 0; 1652 if (hasCustomContent()) { 1653 int index = mScreenOrder.indexOf(CUSTOM_CONTENT_SCREEN_ID); 1654 1655 int scrollDelta = getScrollX() - getScrollForPage(index) - 1656 getLayoutTransitionOffsetForPage(index); 1657 float scrollRange = getScrollForPage(index + 1) - getScrollForPage(index); 1658 translationX = scrollRange - scrollDelta; 1659 progress = (scrollRange - scrollDelta) / scrollRange; 1660 1661 if (isLayoutRtl()) { 1662 translationX = Math.min(0, translationX); 1663 } else { 1664 translationX = Math.max(0, translationX); 1665 } 1666 progress = Math.max(0, progress); 1667 } 1668 1669 if (Float.compare(progress, mLastCustomContentScrollProgress) == 0) return; 1670 1671 CellLayout cc = mWorkspaceScreens.get(CUSTOM_CONTENT_SCREEN_ID); 1672 if (progress > 0 && cc.getVisibility() != VISIBLE && !workspaceInModalState()) { 1673 cc.setVisibility(VISIBLE); 1674 } 1675 1676 mLastCustomContentScrollProgress = progress; 1677 1678 mLauncher.getDragLayer().setBackgroundAlpha(progress * 0.8f); 1679 1680 if (mLauncher.getHotseat() != null) { 1681 mLauncher.getHotseat().setTranslationX(translationX); 1682 } 1683 1684 if (getPageIndicator() != null) { 1685 getPageIndicator().setTranslationX(translationX); 1686 } 1687 1688 if (mCustomContentCallbacks != null) { 1689 mCustomContentCallbacks.onScrollProgressChanged(progress); 1690 } 1691 } 1692 1693 @Override 1694 protected OnClickListener getPageIndicatorClickListener() { 1695 AccessibilityManager am = (AccessibilityManager) 1696 getContext().getSystemService(Context.ACCESSIBILITY_SERVICE); 1697 if (!am.isTouchExplorationEnabled()) { 1698 return null; 1699 } 1700 OnClickListener listener = new OnClickListener() { 1701 @Override 1702 public void onClick(View arg0) { 1703 enterOverviewMode(); 1704 } 1705 }; 1706 return listener; 1707 } 1708 1709 @Override 1710 protected void screenScrolled(int screenCenter) { 1711 final boolean isRtl = isLayoutRtl(); 1712 super.screenScrolled(screenCenter); 1713 1714 updatePageAlphaValues(screenCenter); 1715 updateStateForCustomContent(screenCenter); 1716 enableHwLayersOnVisiblePages(); 1717 1718 boolean shouldOverScroll = mOverScrollX < 0 || mOverScrollX > mMaxScrollX; 1719 1720 if (shouldOverScroll) { 1721 int index = 0; 1722 final int lowerIndex = 0; 1723 final int upperIndex = getChildCount() - 1; 1724 1725 final boolean isLeftPage = mOverScrollX < 0; 1726 index = (!isRtl && isLeftPage) || (isRtl && !isLeftPage) ? lowerIndex : upperIndex; 1727 1728 CellLayout cl = (CellLayout) getChildAt(index); 1729 float effect = Math.abs(mOverScrollEffect); 1730 cl.setOverScrollAmount(Math.abs(effect), isLeftPage); 1731 1732 mOverscrollEffectSet = true; 1733 } else { 1734 if (mOverscrollEffectSet && getChildCount() > 0) { 1735 mOverscrollEffectSet = false; 1736 ((CellLayout) getChildAt(0)).setOverScrollAmount(0, false); 1737 ((CellLayout) getChildAt(getChildCount() - 1)).setOverScrollAmount(0, false); 1738 } 1739 } 1740 } 1741 1742 protected void onAttachedToWindow() { 1743 super.onAttachedToWindow(); 1744 mWindowToken = getWindowToken(); 1745 computeScroll(); 1746 mDragController.setWindowToken(mWindowToken); 1747 } 1748 1749 protected void onDetachedFromWindow() { 1750 super.onDetachedFromWindow(); 1751 mWindowToken = null; 1752 } 1753 1754 protected void onResume() { 1755 if (getPageIndicator() != null) { 1756 // In case accessibility state has changed, we need to perform this on every 1757 // attach to window 1758 OnClickListener listener = getPageIndicatorClickListener(); 1759 if (listener != null) { 1760 getPageIndicator().setOnClickListener(listener); 1761 } 1762 } 1763 AccessibilityManager am = (AccessibilityManager) 1764 getContext().getSystemService(Context.ACCESSIBILITY_SERVICE); 1765 sAccessibilityEnabled = am.isEnabled(); 1766 1767 // Update wallpaper dimensions if they were changed since last onResume 1768 // (we also always set the wallpaper dimensions in the constructor) 1769 if (LauncherAppState.getInstance().hasWallpaperChangedSinceLastCheck()) { 1770 setWallpaperDimension(); 1771 } 1772 mWallpaperIsLiveWallpaper = mWallpaperManager.getWallpaperInfo() != null; 1773 // Force the wallpaper offset steps to be set again, because another app might have changed 1774 // them 1775 mLastSetWallpaperOffsetSteps = 0f; 1776 } 1777 1778 @Override 1779 protected void onLayout(boolean changed, int left, int top, int right, int bottom) { 1780 if (mFirstLayout && mCurrentPage >= 0 && mCurrentPage < getChildCount()) { 1781 mWallpaperOffset.syncWithScroll(); 1782 mWallpaperOffset.jumpToFinal(); 1783 } 1784 super.onLayout(changed, left, top, right, bottom); 1785 } 1786 1787 @Override 1788 protected void onDraw(Canvas canvas) { 1789 super.onDraw(canvas); 1790 1791 // Call back to LauncherModel to finish binding after the first draw 1792 post(mBindPages); 1793 } 1794 1795 @Override 1796 protected boolean onRequestFocusInDescendants(int direction, Rect previouslyFocusedRect) { 1797 if (!mLauncher.isAllAppsVisible()) { 1798 final Folder openFolder = getOpenFolder(); 1799 if (openFolder != null) { 1800 return openFolder.requestFocus(direction, previouslyFocusedRect); 1801 } else { 1802 return super.onRequestFocusInDescendants(direction, previouslyFocusedRect); 1803 } 1804 } 1805 return false; 1806 } 1807 1808 @Override 1809 public int getDescendantFocusability() { 1810 if (workspaceInModalState()) { 1811 return ViewGroup.FOCUS_BLOCK_DESCENDANTS; 1812 } 1813 return super.getDescendantFocusability(); 1814 } 1815 1816 @Override 1817 public void addFocusables(ArrayList<View> views, int direction, int focusableMode) { 1818 if (!mLauncher.isAllAppsVisible()) { 1819 final Folder openFolder = getOpenFolder(); 1820 if (openFolder != null) { 1821 openFolder.addFocusables(views, direction); 1822 } else { 1823 super.addFocusables(views, direction, focusableMode); 1824 } 1825 } 1826 } 1827 1828 public boolean workspaceInModalState() { 1829 return mState != State.NORMAL; 1830 } 1831 1832 void enableChildrenCache(int fromPage, int toPage) { 1833 if (fromPage > toPage) { 1834 final int temp = fromPage; 1835 fromPage = toPage; 1836 toPage = temp; 1837 } 1838 1839 final int screenCount = getChildCount(); 1840 1841 fromPage = Math.max(fromPage, 0); 1842 toPage = Math.min(toPage, screenCount - 1); 1843 1844 for (int i = fromPage; i <= toPage; i++) { 1845 final CellLayout layout = (CellLayout) getChildAt(i); 1846 layout.setChildrenDrawnWithCacheEnabled(true); 1847 layout.setChildrenDrawingCacheEnabled(true); 1848 } 1849 } 1850 1851 void clearChildrenCache() { 1852 final int screenCount = getChildCount(); 1853 for (int i = 0; i < screenCount; i++) { 1854 final CellLayout layout = (CellLayout) getChildAt(i); 1855 layout.setChildrenDrawnWithCacheEnabled(false); 1856 // In software mode, we don't want the items to continue to be drawn into bitmaps 1857 if (!isHardwareAccelerated()) { 1858 layout.setChildrenDrawingCacheEnabled(false); 1859 } 1860 } 1861 } 1862 1863 private void updateChildrenLayersEnabled(boolean force) { 1864 boolean small = mState == State.OVERVIEW || mIsSwitchingState; 1865 boolean enableChildrenLayers = force || small || mAnimatingViewIntoPlace || isPageMoving(); 1866 1867 if (enableChildrenLayers != mChildrenLayersEnabled) { 1868 mChildrenLayersEnabled = enableChildrenLayers; 1869 if (mChildrenLayersEnabled) { 1870 enableHwLayersOnVisiblePages(); 1871 } else { 1872 for (int i = 0; i < getPageCount(); i++) { 1873 final CellLayout cl = (CellLayout) getChildAt(i); 1874 cl.enableHardwareLayer(false); 1875 } 1876 } 1877 } 1878 } 1879 1880 private void enableHwLayersOnVisiblePages() { 1881 if (mChildrenLayersEnabled) { 1882 final int screenCount = getChildCount(); 1883 getVisiblePages(mTempVisiblePagesRange); 1884 int leftScreen = mTempVisiblePagesRange[0]; 1885 int rightScreen = mTempVisiblePagesRange[1]; 1886 if (leftScreen == rightScreen) { 1887 // make sure we're caching at least two pages always 1888 if (rightScreen < screenCount - 1) { 1889 rightScreen++; 1890 } else if (leftScreen > 0) { 1891 leftScreen--; 1892 } 1893 } 1894 1895 final CellLayout customScreen = mWorkspaceScreens.get(CUSTOM_CONTENT_SCREEN_ID); 1896 for (int i = 0; i < screenCount; i++) { 1897 final CellLayout layout = (CellLayout) getPageAt(i); 1898 1899 // enable layers between left and right screen inclusive, except for the 1900 // customScreen, which may animate its content during transitions. 1901 boolean enableLayer = layout != customScreen && 1902 leftScreen <= i && i <= rightScreen && shouldDrawChild(layout); 1903 layout.enableHardwareLayer(enableLayer); 1904 } 1905 } 1906 } 1907 1908 public void buildPageHardwareLayers() { 1909 // force layers to be enabled just for the call to buildLayer 1910 updateChildrenLayersEnabled(true); 1911 if (getWindowToken() != null) { 1912 final int childCount = getChildCount(); 1913 for (int i = 0; i < childCount; i++) { 1914 CellLayout cl = (CellLayout) getChildAt(i); 1915 cl.buildHardwareLayer(); 1916 } 1917 } 1918 updateChildrenLayersEnabled(false); 1919 } 1920 1921 protected void onWallpaperTap(MotionEvent ev) { 1922 final int[] position = mTempCell; 1923 getLocationOnScreen(position); 1924 1925 int pointerIndex = ev.getActionIndex(); 1926 position[0] += (int) ev.getX(pointerIndex); 1927 position[1] += (int) ev.getY(pointerIndex); 1928 1929 mWallpaperManager.sendWallpaperCommand(getWindowToken(), 1930 ev.getAction() == MotionEvent.ACTION_UP 1931 ? WallpaperManager.COMMAND_TAP : WallpaperManager.COMMAND_SECONDARY_TAP, 1932 position[0], position[1], 0, null); 1933 } 1934 1935 /* 1936 * This interpolator emulates the rate at which the perceived scale of an object changes 1937 * as its distance from a camera increases. When this interpolator is applied to a scale 1938 * animation on a view, it evokes the sense that the object is shrinking due to moving away 1939 * from the camera. 1940 */ 1941 static class ZInterpolator implements TimeInterpolator { 1942 private float focalLength; 1943 1944 public ZInterpolator(float foc) { 1945 focalLength = foc; 1946 } 1947 1948 public float getInterpolation(float input) { 1949 return (1.0f - focalLength / (focalLength + input)) / 1950 (1.0f - focalLength / (focalLength + 1.0f)); 1951 } 1952 } 1953 1954 /* 1955 * The exact reverse of ZInterpolator. 1956 */ 1957 static class InverseZInterpolator implements TimeInterpolator { 1958 private ZInterpolator zInterpolator; 1959 public InverseZInterpolator(float foc) { 1960 zInterpolator = new ZInterpolator(foc); 1961 } 1962 public float getInterpolation(float input) { 1963 return 1 - zInterpolator.getInterpolation(1 - input); 1964 } 1965 } 1966 1967 /* 1968 * ZInterpolator compounded with an ease-out. 1969 */ 1970 static class ZoomOutInterpolator implements TimeInterpolator { 1971 private final DecelerateInterpolator decelerate = new DecelerateInterpolator(0.75f); 1972 private final ZInterpolator zInterpolator = new ZInterpolator(0.13f); 1973 1974 public float getInterpolation(float input) { 1975 return decelerate.getInterpolation(zInterpolator.getInterpolation(input)); 1976 } 1977 } 1978 1979 /* 1980 * InvereZInterpolator compounded with an ease-out. 1981 */ 1982 static class ZoomInInterpolator implements TimeInterpolator { 1983 private final InverseZInterpolator inverseZInterpolator = new InverseZInterpolator(0.35f); 1984 private final DecelerateInterpolator decelerate = new DecelerateInterpolator(3.0f); 1985 1986 public float getInterpolation(float input) { 1987 return decelerate.getInterpolation(inverseZInterpolator.getInterpolation(input)); 1988 } 1989 } 1990 1991 private final ZoomInInterpolator mZoomInInterpolator = new ZoomInInterpolator(); 1992 1993 /* 1994 * 1995 * We call these methods (onDragStartedWithItemSpans/onDragStartedWithSize) whenever we 1996 * start a drag in Launcher, regardless of whether the drag has ever entered the Workspace 1997 * 1998 * These methods mark the appropriate pages as accepting drops (which alters their visual 1999 * appearance). 2000 * 2001 */ 2002 private static Rect getDrawableBounds(Drawable d) { 2003 Rect bounds = new Rect(); 2004 d.copyBounds(bounds); 2005 if (bounds.width() == 0 || bounds.height() == 0) { 2006 bounds.set(0, 0, d.getIntrinsicWidth(), d.getIntrinsicHeight()); 2007 } else { 2008 bounds.offsetTo(0, 0); 2009 } 2010 if (d instanceof PreloadIconDrawable) { 2011 int inset = -((PreloadIconDrawable) d).getOutset(); 2012 bounds.inset(inset, inset); 2013 } 2014 return bounds; 2015 } 2016 2017 public void onExternalDragStartedWithItem(View v) { 2018 // Compose a drag bitmap with the view scaled to the icon size 2019 LauncherAppState app = LauncherAppState.getInstance(); 2020 DeviceProfile grid = app.getDynamicGrid().getDeviceProfile(); 2021 int iconSize = grid.iconSizePx; 2022 int bmpWidth = v.getMeasuredWidth(); 2023 int bmpHeight = v.getMeasuredHeight(); 2024 2025 // If this is a text view, use its drawable instead 2026 if (v instanceof TextView) { 2027 TextView tv = (TextView) v; 2028 Drawable d = tv.getCompoundDrawables()[1]; 2029 Rect bounds = getDrawableBounds(d); 2030 bmpWidth = bounds.width(); 2031 bmpHeight = bounds.height(); 2032 } 2033 2034 // Compose the bitmap to create the icon from 2035 Bitmap b = Bitmap.createBitmap(bmpWidth, bmpHeight, 2036 Bitmap.Config.ARGB_8888); 2037 mCanvas.setBitmap(b); 2038 drawDragView(v, mCanvas, 0); 2039 mCanvas.setBitmap(null); 2040 2041 // The outline is used to visualize where the item will land if dropped 2042 mDragOutline = createDragOutline(b, DRAG_BITMAP_PADDING, iconSize, iconSize, true); 2043 } 2044 2045 public void onDragStartedWithItem(PendingAddItemInfo info, Bitmap b, boolean clipAlpha) { 2046 int[] size = estimateItemSize(info.spanX, info.spanY, info, false); 2047 2048 // The outline is used to visualize where the item will land if dropped 2049 mDragOutline = createDragOutline(b, DRAG_BITMAP_PADDING, size[0], size[1], clipAlpha); 2050 } 2051 2052 public void exitWidgetResizeMode() { 2053 DragLayer dragLayer = mLauncher.getDragLayer(); 2054 dragLayer.clearAllResizeFrames(); 2055 } 2056 2057 private void initAnimationArrays() { 2058 final int childCount = getChildCount(); 2059 if (mLastChildCount == childCount) return; 2060 2061 mOldBackgroundAlphas = new float[childCount]; 2062 mOldAlphas = new float[childCount]; 2063 mNewBackgroundAlphas = new float[childCount]; 2064 mNewAlphas = new float[childCount]; 2065 } 2066 2067 Animator getChangeStateAnimation(final State state, boolean animated, 2068 HashMap<View, Integer> layerViews) { 2069 return getChangeStateAnimation(state, animated, 0, -1, layerViews); 2070 } 2071 2072 @Override 2073 protected void getFreeScrollPageRange(int[] range) { 2074 getOverviewModePages(range); 2075 } 2076 2077 private void getOverviewModePages(int[] range) { 2078 int start = numCustomPages(); 2079 int end = getChildCount() - 1; 2080 2081 range[0] = Math.max(0, Math.min(start, getChildCount() - 1)); 2082 range[1] = Math.max(0, end); 2083 } 2084 2085 protected void onStartReordering() { 2086 super.onStartReordering(); 2087 showOutlines(); 2088 // Reordering handles its own animations, disable the automatic ones. 2089 disableLayoutTransitions(); 2090 } 2091 2092 protected void onEndReordering() { 2093 super.onEndReordering(); 2094 2095 if (mLauncher.isWorkspaceLoading()) { 2096 // Invalid and dangerous operation if workspace is loading 2097 return; 2098 } 2099 2100 hideOutlines(); 2101 mScreenOrder.clear(); 2102 int count = getChildCount(); 2103 for (int i = 0; i < count; i++) { 2104 CellLayout cl = ((CellLayout) getChildAt(i)); 2105 mScreenOrder.add(getIdForScreen(cl)); 2106 } 2107 2108 mLauncher.getModel().updateWorkspaceScreenOrder(mLauncher, mScreenOrder); 2109 2110 // Re-enable auto layout transitions for page deletion. 2111 enableLayoutTransitions(); 2112 } 2113 2114 public boolean isInOverviewMode() { 2115 return mState == State.OVERVIEW; 2116 } 2117 2118 public boolean enterOverviewMode() { 2119 if (mTouchState != TOUCH_STATE_REST) { 2120 return false; 2121 } 2122 enableOverviewMode(true, -1, true); 2123 return true; 2124 } 2125 2126 public void exitOverviewMode(boolean animated) { 2127 exitOverviewMode(-1, animated); 2128 } 2129 2130 public void exitOverviewMode(int snapPage, boolean animated) { 2131 enableOverviewMode(false, snapPage, animated); 2132 } 2133 2134 private void enableOverviewMode(boolean enable, int snapPage, boolean animated) { 2135 State finalState = Workspace.State.OVERVIEW; 2136 if (!enable) { 2137 finalState = Workspace.State.NORMAL; 2138 } 2139 2140 Animator workspaceAnim = getChangeStateAnimation(finalState, animated, 0, snapPage); 2141 if (workspaceAnim != null) { 2142 onTransitionPrepare(); 2143 workspaceAnim.addListener(new AnimatorListenerAdapter() { 2144 @Override 2145 public void onAnimationEnd(Animator arg0) { 2146 onTransitionEnd(); 2147 } 2148 }); 2149 workspaceAnim.start(); 2150 } 2151 } 2152 2153 int getOverviewModeTranslationY() { 2154 LauncherAppState app = LauncherAppState.getInstance(); 2155 DeviceProfile grid = app.getDynamicGrid().getDeviceProfile(); 2156 Rect overviewBar = grid.getOverviewModeButtonBarRect(); 2157 2158 int availableHeight = getViewportHeight(); 2159 int scaledHeight = (int) (mOverviewModeShrinkFactor * getNormalChildHeight()); 2160 int offsetFromTopEdge = (availableHeight - scaledHeight) / 2; 2161 int offsetToCenterInOverview = (availableHeight - mInsets.top - overviewBar.height() 2162 - scaledHeight) / 2; 2163 2164 return -offsetFromTopEdge + mInsets.top + offsetToCenterInOverview; 2165 } 2166 2167 public void updateInteractionForState() { 2168 if (mState != State.NORMAL) { 2169 mLauncher.onInteractionBegin(); 2170 } else { 2171 mLauncher.onInteractionEnd(); 2172 } 2173 } 2174 2175 private void setState(State state) { 2176 mState = state; 2177 updateInteractionForState(); 2178 updateAccessibilityFlags(); 2179 } 2180 2181 State getState() { 2182 return mState; 2183 } 2184 2185 private void updateAccessibilityFlags() { 2186 int accessible = mState == State.NORMAL ? 2187 IMPORTANT_FOR_ACCESSIBILITY_YES : 2188 IMPORTANT_FOR_ACCESSIBILITY_NO_HIDE_DESCENDANTS; 2189 setImportantForAccessibility(accessible); 2190 } 2191 2192 private static final int HIDE_WORKSPACE_DURATION = 100; 2193 2194 Animator getChangeStateAnimation(final State state, boolean animated, int delay, int snapPage) { 2195 return getChangeStateAnimation(state, animated, delay, snapPage, null); 2196 } 2197 2198 Animator getChangeStateAnimation(final State state, boolean animated, int delay, int snapPage, 2199 HashMap<View, Integer> layerViews) { 2200 if (mState == state) { 2201 return null; 2202 } 2203 2204 // Initialize animation arrays for the first time if necessary 2205 initAnimationArrays(); 2206 2207 AnimatorSet anim = animated ? LauncherAnimUtils.createAnimatorSet() : null; 2208 2209 // We only want a single instance of a workspace animation to be running at once, so 2210 // we cancel any incomplete transition. 2211 if (mStateAnimator != null) { 2212 mStateAnimator.cancel(); 2213 } 2214 mStateAnimator = anim; 2215 2216 final State oldState = mState; 2217 final boolean oldStateIsNormal = (oldState == State.NORMAL); 2218 final boolean oldStateIsSpringLoaded = (oldState == State.SPRING_LOADED); 2219 final boolean oldStateIsNormalHidden = (oldState == State.NORMAL_HIDDEN); 2220 final boolean oldStateIsOverviewHidden = (oldState == State.OVERVIEW_HIDDEN); 2221 final boolean oldStateIsOverview = (oldState == State.OVERVIEW); 2222 setState(state); 2223 final boolean stateIsNormal = (state == State.NORMAL); 2224 final boolean stateIsSpringLoaded = (state == State.SPRING_LOADED); 2225 final boolean stateIsNormalHidden = (state == State.NORMAL_HIDDEN); 2226 final boolean stateIsOverviewHidden = (state == State.OVERVIEW_HIDDEN); 2227 final boolean stateIsOverview = (state == State.OVERVIEW); 2228 float finalBackgroundAlpha = (stateIsSpringLoaded || stateIsOverview) ? 1.0f : 0f; 2229 float finalHotseatAndPageIndicatorAlpha = (stateIsNormal || stateIsSpringLoaded) ? 1f : 0f; 2230 float finalOverviewPanelAlpha = stateIsOverview ? 1f : 0f; 2231 float finalSearchBarAlpha = !stateIsNormal ? 0f : 1f; 2232 float finalWorkspaceTranslationY = stateIsOverview || stateIsOverviewHidden ? 2233 getOverviewModeTranslationY() : 0; 2234 2235 boolean workspaceToAllApps = (oldStateIsNormal && stateIsNormalHidden); 2236 boolean overviewToAllApps = (oldStateIsOverview && stateIsOverviewHidden); 2237 boolean allAppsToWorkspace = (stateIsNormalHidden && stateIsNormal); 2238 boolean workspaceToOverview = (oldStateIsNormal && stateIsOverview); 2239 boolean overviewToWorkspace = (oldStateIsOverview && stateIsNormal); 2240 2241 mNewScale = 1.0f; 2242 2243 if (oldStateIsOverview) { 2244 disableFreeScroll(); 2245 } else if (stateIsOverview) { 2246 enableFreeScroll(); 2247 } 2248 2249 if (state != State.NORMAL) { 2250 if (stateIsSpringLoaded) { 2251 mNewScale = mSpringLoadedShrinkFactor; 2252 } else if (stateIsOverview || stateIsOverviewHidden) { 2253 mNewScale = mOverviewModeShrinkFactor; 2254 } 2255 } 2256 2257 final int duration; 2258 if (workspaceToAllApps || overviewToAllApps) { 2259 duration = HIDE_WORKSPACE_DURATION; //getResources().getInteger(R.integer.config_workspaceUnshrinkTime); 2260 } else if (workspaceToOverview || overviewToWorkspace) { 2261 duration = getResources().getInteger(R.integer.config_overviewTransitionTime); 2262 } else { 2263 duration = getResources().getInteger(R.integer.config_appsCustomizeWorkspaceShrinkTime); 2264 } 2265 2266 if (snapPage == -1) { 2267 snapPage = getPageNearestToCenterOfScreen(); 2268 } 2269 snapToPage(snapPage, duration, mZoomInInterpolator); 2270 2271 for (int i = 0; i < getChildCount(); i++) { 2272 final CellLayout cl = (CellLayout) getChildAt(i); 2273 boolean isCurrentPage = (i == snapPage); 2274 float initialAlpha = cl.getShortcutsAndWidgets().getAlpha(); 2275 float finalAlpha; 2276 if (stateIsNormalHidden || stateIsOverviewHidden) { 2277 finalAlpha = 0f; 2278 } else if (stateIsNormal && mWorkspaceFadeInAdjacentScreens) { 2279 finalAlpha = (i == snapPage || i < numCustomPages()) ? 1f : 0f; 2280 } else { 2281 finalAlpha = 1f; 2282 } 2283 2284 // If we are animating to/from the small state, then hide the side pages and fade the 2285 // current page in 2286 if (!mIsSwitchingState) { 2287 if (workspaceToAllApps || allAppsToWorkspace) { 2288 if (allAppsToWorkspace && isCurrentPage) { 2289 initialAlpha = 0f; 2290 } else if (!isCurrentPage) { 2291 initialAlpha = finalAlpha = 0f; 2292 } 2293 cl.setShortcutAndWidgetAlpha(initialAlpha); 2294 } 2295 } 2296 2297 mOldAlphas[i] = initialAlpha; 2298 mNewAlphas[i] = finalAlpha; 2299 if (animated) { 2300 mOldBackgroundAlphas[i] = cl.getBackgroundAlpha(); 2301 mNewBackgroundAlphas[i] = finalBackgroundAlpha; 2302 } else { 2303 cl.setBackgroundAlpha(finalBackgroundAlpha); 2304 cl.setShortcutAndWidgetAlpha(finalAlpha); 2305 } 2306 } 2307 2308 final View searchBar = mLauncher.getQsbBar(); 2309 final View overviewPanel = mLauncher.getOverviewPanel(); 2310 final View hotseat = mLauncher.getHotseat(); 2311 final View pageIndicator = getPageIndicator(); 2312 if (animated) { 2313 LauncherViewPropertyAnimator scale = new LauncherViewPropertyAnimator(this); 2314 scale.scaleX(mNewScale) 2315 .scaleY(mNewScale) 2316 .translationY(finalWorkspaceTranslationY) 2317 .setDuration(duration) 2318 .setInterpolator(mZoomInInterpolator); 2319 anim.play(scale); 2320 for (int index = 0; index < getChildCount(); index++) { 2321 final int i = index; 2322 final CellLayout cl = (CellLayout) getChildAt(i); 2323 float currentAlpha = cl.getShortcutsAndWidgets().getAlpha(); 2324 if (mOldAlphas[i] == 0 && mNewAlphas[i] == 0) { 2325 cl.setBackgroundAlpha(mNewBackgroundAlphas[i]); 2326 cl.setShortcutAndWidgetAlpha(mNewAlphas[i]); 2327 } else { 2328 if (layerViews != null) { 2329 layerViews.put(cl, Launcher.BUILD_LAYER); 2330 } 2331 if (mOldAlphas[i] != mNewAlphas[i] || currentAlpha != mNewAlphas[i]) { 2332 LauncherViewPropertyAnimator alphaAnim = 2333 new LauncherViewPropertyAnimator(cl.getShortcutsAndWidgets()); 2334 alphaAnim.alpha(mNewAlphas[i]) 2335 .setDuration(duration) 2336 .setInterpolator(mZoomInInterpolator); 2337 anim.play(alphaAnim); 2338 } 2339 if (mOldBackgroundAlphas[i] != 0 || 2340 mNewBackgroundAlphas[i] != 0) { 2341 ValueAnimator bgAnim = 2342 LauncherAnimUtils.ofFloat(cl, 0f, 1f); 2343 bgAnim.setInterpolator(mZoomInInterpolator); 2344 bgAnim.setDuration(duration); 2345 bgAnim.addUpdateListener(new LauncherAnimatorUpdateListener() { 2346 public void onAnimationUpdate(float a, float b) { 2347 cl.setBackgroundAlpha( 2348 a * mOldBackgroundAlphas[i] + 2349 b * mNewBackgroundAlphas[i]); 2350 } 2351 }); 2352 anim.play(bgAnim); 2353 } 2354 } 2355 } 2356 Animator pageIndicatorAlpha = null; 2357 if (pageIndicator != null) { 2358 pageIndicatorAlpha = new LauncherViewPropertyAnimator(pageIndicator) 2359 .alpha(finalHotseatAndPageIndicatorAlpha).withLayer(); 2360 pageIndicatorAlpha.addListener(new AlphaUpdateListener(pageIndicator)); 2361 } else { 2362 // create a dummy animation so we don't need to do null checks later 2363 pageIndicatorAlpha = ValueAnimator.ofFloat(0, 0); 2364 } 2365 2366 LauncherViewPropertyAnimator hotseatAlpha = new LauncherViewPropertyAnimator(hotseat) 2367 .alpha(finalHotseatAndPageIndicatorAlpha); 2368 hotseatAlpha.addListener(new AlphaUpdateListener(hotseat)); 2369 2370 LauncherViewPropertyAnimator overviewPanelAlpha = 2371 new LauncherViewPropertyAnimator(overviewPanel).alpha(finalOverviewPanelAlpha); 2372 overviewPanelAlpha.addListener(new AlphaUpdateListener(overviewPanel)); 2373 2374 // For animation optimations, we may need to provide the Launcher transition 2375 // with a set of views on which to force build layers in certain scenarios. 2376 hotseat.setLayerType(View.LAYER_TYPE_HARDWARE, null); 2377 overviewPanel.setLayerType(View.LAYER_TYPE_HARDWARE, null); 2378 if (layerViews != null) { 2379 // If layerViews is not null, we add these views, and indicate that 2380 // the caller can manage layer state. 2381 layerViews.put(hotseat, Launcher.BUILD_AND_SET_LAYER); 2382 layerViews.put(overviewPanel, Launcher.BUILD_AND_SET_LAYER); 2383 } else { 2384 // Otherwise let the animator handle layer management. 2385 hotseatAlpha.withLayer(); 2386 overviewPanelAlpha.withLayer(); 2387 } 2388 2389 if (workspaceToOverview) { 2390 pageIndicatorAlpha.setInterpolator(new DecelerateInterpolator(2)); 2391 hotseatAlpha.setInterpolator(new DecelerateInterpolator(2)); 2392 overviewPanelAlpha.setInterpolator(null); 2393 } else if (overviewToWorkspace) { 2394 pageIndicatorAlpha.setInterpolator(null); 2395 hotseatAlpha.setInterpolator(null); 2396 overviewPanelAlpha.setInterpolator(new DecelerateInterpolator(2)); 2397 } 2398 2399 overviewPanelAlpha.setDuration(duration); 2400 pageIndicatorAlpha.setDuration(duration); 2401 hotseatAlpha.setDuration(duration); 2402 2403 if (searchBar != null) { 2404 LauncherViewPropertyAnimator searchBarAlpha = new LauncherViewPropertyAnimator(searchBar) 2405 .alpha(finalSearchBarAlpha); 2406 searchBarAlpha.addListener(new AlphaUpdateListener(searchBar)); 2407 searchBar.setLayerType(View.LAYER_TYPE_HARDWARE, null); 2408 if (layerViews != null) { 2409 // If layerViews is not null, we add these views, and indicate that 2410 // the caller can manage layer state. 2411 layerViews.put(searchBar, Launcher.BUILD_AND_SET_LAYER); 2412 } else { 2413 // Otherwise let the animator handle layer management. 2414 searchBarAlpha.withLayer(); 2415 } 2416 searchBarAlpha.setDuration(duration); 2417 anim.play(searchBarAlpha); 2418 } 2419 2420 anim.play(overviewPanelAlpha); 2421 anim.play(hotseatAlpha); 2422 anim.play(pageIndicatorAlpha); 2423 anim.setStartDelay(delay); 2424 anim.addListener(new AnimatorListenerAdapter() { 2425 @Override 2426 public void onAnimationEnd(Animator animation) { 2427 mStateAnimator = null; 2428 } 2429 }); 2430 } else { 2431 overviewPanel.setAlpha(finalOverviewPanelAlpha); 2432 AlphaUpdateListener.updateVisibility(overviewPanel); 2433 hotseat.setAlpha(finalHotseatAndPageIndicatorAlpha); 2434 AlphaUpdateListener.updateVisibility(hotseat); 2435 if (pageIndicator != null) { 2436 pageIndicator.setAlpha(finalHotseatAndPageIndicatorAlpha); 2437 AlphaUpdateListener.updateVisibility(pageIndicator); 2438 } 2439 if (searchBar != null) { 2440 searchBar.setAlpha(finalSearchBarAlpha); 2441 AlphaUpdateListener.updateVisibility(searchBar); 2442 } 2443 updateCustomContentVisibility(); 2444 setScaleX(mNewScale); 2445 setScaleY(mNewScale); 2446 setTranslationY(finalWorkspaceTranslationY); 2447 } 2448 2449 if (stateIsNormal) { 2450 animateBackgroundGradient(0f, animated); 2451 } else { 2452 animateBackgroundGradient(getResources().getInteger( 2453 R.integer.config_workspaceScrimAlpha) / 100f, animated); 2454 } 2455 return anim; 2456 } 2457 2458 static class AlphaUpdateListener implements AnimatorUpdateListener, AnimatorListener { 2459 View view; 2460 public AlphaUpdateListener(View v) { 2461 view = v; 2462 } 2463 2464 @Override 2465 public void onAnimationUpdate(ValueAnimator arg0) { 2466 updateVisibility(view); 2467 } 2468 2469 public static void updateVisibility(View view) { 2470 // We want to avoid the extra layout pass by setting the views to GONE unless 2471 // accessibility is on, in which case not setting them to GONE causes a glitch. 2472 int invisibleState = sAccessibilityEnabled ? GONE : INVISIBLE; 2473 if (view.getAlpha() < ALPHA_CUTOFF_THRESHOLD && view.getVisibility() != invisibleState) { 2474 view.setVisibility(invisibleState); 2475 } else if (view.getAlpha() > ALPHA_CUTOFF_THRESHOLD 2476 && view.getVisibility() != VISIBLE) { 2477 view.setVisibility(VISIBLE); 2478 } 2479 } 2480 2481 @Override 2482 public void onAnimationCancel(Animator arg0) { 2483 } 2484 2485 @Override 2486 public void onAnimationEnd(Animator arg0) { 2487 updateVisibility(view); 2488 } 2489 2490 @Override 2491 public void onAnimationRepeat(Animator arg0) { 2492 } 2493 2494 @Override 2495 public void onAnimationStart(Animator arg0) { 2496 // We want the views to be visible for animation, so fade-in/out is visible 2497 view.setVisibility(VISIBLE); 2498 } 2499 } 2500 2501 @Override 2502 public void onLauncherTransitionPrepare(Launcher l, boolean animated, boolean toWorkspace) { 2503 onTransitionPrepare(); 2504 } 2505 2506 @Override 2507 public void onLauncherTransitionStart(Launcher l, boolean animated, boolean toWorkspace) { 2508 } 2509 2510 @Override 2511 public void onLauncherTransitionStep(Launcher l, float t) { 2512 mTransitionProgress = t; 2513 } 2514 2515 @Override 2516 public void onLauncherTransitionEnd(Launcher l, boolean animated, boolean toWorkspace) { 2517 onTransitionEnd(); 2518 } 2519 2520 private void onTransitionPrepare() { 2521 mIsSwitchingState = true; 2522 2523 // Invalidate here to ensure that the pages are rendered during the state change transition. 2524 invalidate(); 2525 2526 updateChildrenLayersEnabled(false); 2527 hideCustomContentIfNecessary(); 2528 } 2529 2530 void updateCustomContentVisibility() { 2531 int visibility = mState == Workspace.State.NORMAL ? VISIBLE : INVISIBLE; 2532 if (hasCustomContent()) { 2533 mWorkspaceScreens.get(CUSTOM_CONTENT_SCREEN_ID).setVisibility(visibility); 2534 } 2535 } 2536 2537 void showCustomContentIfNecessary() { 2538 boolean show = mState == Workspace.State.NORMAL; 2539 if (show && hasCustomContent()) { 2540 mWorkspaceScreens.get(CUSTOM_CONTENT_SCREEN_ID).setVisibility(VISIBLE); 2541 } 2542 } 2543 2544 void hideCustomContentIfNecessary() { 2545 boolean hide = mState != Workspace.State.NORMAL; 2546 if (hide && hasCustomContent()) { 2547 disableLayoutTransitions(); 2548 mWorkspaceScreens.get(CUSTOM_CONTENT_SCREEN_ID).setVisibility(INVISIBLE); 2549 enableLayoutTransitions(); 2550 } 2551 } 2552 2553 private void onTransitionEnd() { 2554 mIsSwitchingState = false; 2555 updateChildrenLayersEnabled(false); 2556 showCustomContentIfNecessary(); 2557 } 2558 2559 @Override 2560 public View getContent() { 2561 return this; 2562 } 2563 2564 /** 2565 * Draw the View v into the given Canvas. 2566 * 2567 * @param v the view to draw 2568 * @param destCanvas the canvas to draw on 2569 * @param padding the horizontal and vertical padding to use when drawing 2570 */ 2571 private static void drawDragView(View v, Canvas destCanvas, int padding) { 2572 final Rect clipRect = sTempRect; 2573 v.getDrawingRect(clipRect); 2574 2575 boolean textVisible = false; 2576 2577 destCanvas.save(); 2578 if (v instanceof TextView) { 2579 Drawable d = ((TextView) v).getCompoundDrawables()[1]; 2580 Rect bounds = getDrawableBounds(d); 2581 clipRect.set(0, 0, bounds.width() + padding, bounds.height() + padding); 2582 destCanvas.translate(padding / 2 - bounds.left, padding / 2 - bounds.top); 2583 d.draw(destCanvas); 2584 } else { 2585 if (v instanceof FolderIcon) { 2586 // For FolderIcons the text can bleed into the icon area, and so we need to 2587 // hide the text completely (which can't be achieved by clipping). 2588 if (((FolderIcon) v).getTextVisible()) { 2589 ((FolderIcon) v).setTextVisible(false); 2590 textVisible = true; 2591 } 2592 } 2593 destCanvas.translate(-v.getScrollX() + padding / 2, -v.getScrollY() + padding / 2); 2594 destCanvas.clipRect(clipRect, Op.REPLACE); 2595 v.draw(destCanvas); 2596 2597 // Restore text visibility of FolderIcon if necessary 2598 if (textVisible) { 2599 ((FolderIcon) v).setTextVisible(true); 2600 } 2601 } 2602 destCanvas.restore(); 2603 } 2604 2605 /** 2606 * Returns a new bitmap to show when the given View is being dragged around. 2607 * Responsibility for the bitmap is transferred to the caller. 2608 * @param expectedPadding padding to add to the drag view. If a different padding was used 2609 * its value will be changed 2610 */ 2611 public Bitmap createDragBitmap(View v, AtomicInteger expectedPadding) { 2612 Bitmap b; 2613 2614 int padding = expectedPadding.get(); 2615 if (v instanceof TextView) { 2616 Drawable d = ((TextView) v).getCompoundDrawables()[1]; 2617 Rect bounds = getDrawableBounds(d); 2618 b = Bitmap.createBitmap(bounds.width() + padding, 2619 bounds.height() + padding, Bitmap.Config.ARGB_8888); 2620 expectedPadding.set(padding - bounds.left - bounds.top); 2621 } else { 2622 b = Bitmap.createBitmap( 2623 v.getWidth() + padding, v.getHeight() + padding, Bitmap.Config.ARGB_8888); 2624 } 2625 2626 mCanvas.setBitmap(b); 2627 drawDragView(v, mCanvas, padding); 2628 mCanvas.setBitmap(null); 2629 2630 return b; 2631 } 2632 2633 /** 2634 * Returns a new bitmap to be used as the object outline, e.g. to visualize the drop location. 2635 * Responsibility for the bitmap is transferred to the caller. 2636 */ 2637 private Bitmap createDragOutline(View v, int padding) { 2638 final int outlineColor = getResources().getColor(R.color.outline_color); 2639 final Bitmap b = Bitmap.createBitmap( 2640 v.getWidth() + padding, v.getHeight() + padding, Bitmap.Config.ARGB_8888); 2641 2642 mCanvas.setBitmap(b); 2643 drawDragView(v, mCanvas, padding); 2644 mOutlineHelper.applyExpensiveOutlineWithBlur(b, mCanvas, outlineColor, outlineColor); 2645 mCanvas.setBitmap(null); 2646 return b; 2647 } 2648 2649 /** 2650 * Returns a new bitmap to be used as the object outline, e.g. to visualize the drop location. 2651 * Responsibility for the bitmap is transferred to the caller. 2652 */ 2653 private Bitmap createDragOutline(Bitmap orig, int padding, int w, int h, 2654 boolean clipAlpha) { 2655 final int outlineColor = getResources().getColor(R.color.outline_color); 2656 final Bitmap b = Bitmap.createBitmap(w, h, Bitmap.Config.ARGB_8888); 2657 mCanvas.setBitmap(b); 2658 2659 Rect src = new Rect(0, 0, orig.getWidth(), orig.getHeight()); 2660 float scaleFactor = Math.min((w - padding) / (float) orig.getWidth(), 2661 (h - padding) / (float) orig.getHeight()); 2662 int scaledWidth = (int) (scaleFactor * orig.getWidth()); 2663 int scaledHeight = (int) (scaleFactor * orig.getHeight()); 2664 Rect dst = new Rect(0, 0, scaledWidth, scaledHeight); 2665 2666 // center the image 2667 dst.offset((w - scaledWidth) / 2, (h - scaledHeight) / 2); 2668 2669 mCanvas.drawBitmap(orig, src, dst, null); 2670 mOutlineHelper.applyExpensiveOutlineWithBlur(b, mCanvas, outlineColor, outlineColor, 2671 clipAlpha); 2672 mCanvas.setBitmap(null); 2673 2674 return b; 2675 } 2676 2677 void startDrag(CellLayout.CellInfo cellInfo) { 2678 View child = cellInfo.cell; 2679 2680 // Make sure the drag was started by a long press as opposed to a long click. 2681 if (!child.isInTouchMode()) { 2682 return; 2683 } 2684 2685 mDragInfo = cellInfo; 2686 child.setVisibility(INVISIBLE); 2687 CellLayout layout = (CellLayout) child.getParent().getParent(); 2688 layout.prepareChildForDrag(child); 2689 2690 beginDragShared(child, this); 2691 } 2692 2693 public void beginDragShared(View child, DragSource source) { 2694 child.clearFocus(); 2695 child.setPressed(false); 2696 2697 // The outline is used to visualize where the item will land if dropped 2698 mDragOutline = createDragOutline(child, DRAG_BITMAP_PADDING); 2699 2700 mLauncher.onDragStarted(child); 2701 // The drag bitmap follows the touch point around on the screen 2702 AtomicInteger padding = new AtomicInteger(DRAG_BITMAP_PADDING); 2703 final Bitmap b = createDragBitmap(child, padding); 2704 2705 final int bmpWidth = b.getWidth(); 2706 final int bmpHeight = b.getHeight(); 2707 2708 float scale = mLauncher.getDragLayer().getLocationInDragLayer(child, mTempXY); 2709 int dragLayerX = Math.round(mTempXY[0] - (bmpWidth - scale * child.getWidth()) / 2); 2710 int dragLayerY = Math.round(mTempXY[1] - (bmpHeight - scale * bmpHeight) / 2 2711 - padding.get() / 2); 2712 2713 LauncherAppState app = LauncherAppState.getInstance(); 2714 DeviceProfile grid = app.getDynamicGrid().getDeviceProfile(); 2715 Point dragVisualizeOffset = null; 2716 Rect dragRect = null; 2717 if (child instanceof BubbleTextView) { 2718 int iconSize = grid.iconSizePx; 2719 int top = child.getPaddingTop(); 2720 int left = (bmpWidth - iconSize) / 2; 2721 int right = left + iconSize; 2722 int bottom = top + iconSize; 2723 dragLayerY += top; 2724 // Note: The drag region is used to calculate drag layer offsets, but the 2725 // dragVisualizeOffset in addition to the dragRect (the size) to position the outline. 2726 dragVisualizeOffset = new Point(-padding.get() / 2, padding.get() / 2); 2727 dragRect = new Rect(left, top, right, bottom); 2728 } else if (child instanceof FolderIcon) { 2729 int previewSize = grid.folderIconSizePx; 2730 dragRect = new Rect(0, child.getPaddingTop(), child.getWidth(), previewSize); 2731 } 2732 2733 // Clear the pressed state if necessary 2734 if (child instanceof BubbleTextView) { 2735 BubbleTextView icon = (BubbleTextView) child; 2736 icon.clearPressedBackground(); 2737 } 2738 2739 if (child.getTag() == null || !(child.getTag() instanceof ItemInfo)) { 2740 String msg = "Drag started with a view that has no tag set. This " 2741 + "will cause a crash (issue 11627249) down the line. " 2742 + "View: " + child + " tag: " + child.getTag(); 2743 throw new IllegalStateException(msg); 2744 } 2745 2746 DragView dv = mDragController.startDrag(b, dragLayerX, dragLayerY, source, child.getTag(), 2747 DragController.DRAG_ACTION_MOVE, dragVisualizeOffset, dragRect, scale); 2748 dv.setIntrinsicIconScaleFactor(source.getIntrinsicIconScaleFactor()); 2749 2750 if (child.getParent() instanceof ShortcutAndWidgetContainer) { 2751 mDragSourceInternal = (ShortcutAndWidgetContainer) child.getParent(); 2752 } 2753 2754 b.recycle(); 2755 } 2756 2757 public void beginExternalDragShared(View child, DragSource source) { 2758 LauncherAppState app = LauncherAppState.getInstance(); 2759 DeviceProfile grid = app.getDynamicGrid().getDeviceProfile(); 2760 int iconSize = grid.iconSizePx; 2761 2762 // Notify launcher of drag start 2763 mLauncher.onDragStarted(child); 2764 2765 // Compose a new drag bitmap that is of the icon size 2766 AtomicInteger padding = new AtomicInteger(DRAG_BITMAP_PADDING); 2767 final Bitmap tmpB = createDragBitmap(child, padding); 2768 Bitmap b = Bitmap.createBitmap(iconSize, iconSize, Bitmap.Config.ARGB_8888); 2769 Paint p = new Paint(); 2770 p.setFilterBitmap(true); 2771 mCanvas.setBitmap(b); 2772 mCanvas.drawBitmap(tmpB, new Rect(0, 0, tmpB.getWidth(), tmpB.getHeight()), 2773 new Rect(0, 0, iconSize, iconSize), p); 2774 mCanvas.setBitmap(null); 2775 2776 // Find the child's location on the screen 2777 int bmpWidth = tmpB.getWidth(); 2778 float iconScale = (float) bmpWidth / iconSize; 2779 float scale = mLauncher.getDragLayer().getLocationInDragLayer(child, mTempXY) * iconScale; 2780 int dragLayerX = Math.round(mTempXY[0] - (bmpWidth - scale * child.getWidth()) / 2); 2781 int dragLayerY = Math.round(mTempXY[1]); 2782 2783 // Note: The drag region is used to calculate drag layer offsets, but the 2784 // dragVisualizeOffset in addition to the dragRect (the size) to position the outline. 2785 Point dragVisualizeOffset = new Point(-padding.get() / 2, padding.get() / 2); 2786 Rect dragRect = new Rect(0, 0, iconSize, iconSize); 2787 2788 if (child.getTag() == null || !(child.getTag() instanceof ItemInfo)) { 2789 String msg = "Drag started with a view that has no tag set. This " 2790 + "will cause a crash (issue 11627249) down the line. " 2791 + "View: " + child + " tag: " + child.getTag(); 2792 throw new IllegalStateException(msg); 2793 } 2794 2795 // Start the drag 2796 DragView dv = mDragController.startDrag(b, dragLayerX, dragLayerY, source, child.getTag(), 2797 DragController.DRAG_ACTION_MOVE, dragVisualizeOffset, dragRect, scale); 2798 dv.setIntrinsicIconScaleFactor(source.getIntrinsicIconScaleFactor()); 2799 2800 // Recycle temporary bitmaps 2801 tmpB.recycle(); 2802 } 2803 2804 void addApplicationShortcut(ShortcutInfo info, CellLayout target, long container, long screenId, 2805 int cellX, int cellY, boolean insertAtFirst, int intersectX, int intersectY) { 2806 View view = mLauncher.createShortcut(R.layout.application, target, (ShortcutInfo) info); 2807 2808 final int[] cellXY = new int[2]; 2809 target.findCellForSpanThatIntersects(cellXY, 1, 1, intersectX, intersectY); 2810 addInScreen(view, container, screenId, cellXY[0], cellXY[1], 1, 1, insertAtFirst); 2811 2812 LauncherModel.addOrMoveItemInDatabase(mLauncher, info, container, screenId, cellXY[0], 2813 cellXY[1]); 2814 } 2815 2816 public boolean transitionStateShouldAllowDrop() { 2817 return ((!isSwitchingState() || mTransitionProgress > 0.5f) && 2818 (mState == State.NORMAL || mState == State.SPRING_LOADED)); 2819 } 2820 2821 /** 2822 * {@inheritDoc} 2823 */ 2824 public boolean acceptDrop(DragObject d) { 2825 // If it's an external drop (e.g. from All Apps), check if it should be accepted 2826 CellLayout dropTargetLayout = mDropToLayout; 2827 if (d.dragSource != this) { 2828 // Don't accept the drop if we're not over a screen at time of drop 2829 if (dropTargetLayout == null) { 2830 return false; 2831 } 2832 if (!transitionStateShouldAllowDrop()) return false; 2833 2834 mDragViewVisualCenter = getDragViewVisualCenter(d.x, d.y, d.xOffset, d.yOffset, 2835 d.dragView, mDragViewVisualCenter); 2836 2837 // We want the point to be mapped to the dragTarget. 2838 if (mLauncher.isHotseatLayout(dropTargetLayout)) { 2839 mapPointFromSelfToHotseatLayout(mLauncher.getHotseat(), mDragViewVisualCenter); 2840 } else { 2841 mapPointFromSelfToChild(dropTargetLayout, mDragViewVisualCenter, null); 2842 } 2843 2844 int spanX = 1; 2845 int spanY = 1; 2846 if (mDragInfo != null) { 2847 final CellLayout.CellInfo dragCellInfo = mDragInfo; 2848 spanX = dragCellInfo.spanX; 2849 spanY = dragCellInfo.spanY; 2850 } else { 2851 final ItemInfo dragInfo = (ItemInfo) d.dragInfo; 2852 spanX = dragInfo.spanX; 2853 spanY = dragInfo.spanY; 2854 } 2855 2856 int minSpanX = spanX; 2857 int minSpanY = spanY; 2858 if (d.dragInfo instanceof PendingAddWidgetInfo) { 2859 minSpanX = ((PendingAddWidgetInfo) d.dragInfo).minSpanX; 2860 minSpanY = ((PendingAddWidgetInfo) d.dragInfo).minSpanY; 2861 } 2862 2863 mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], 2864 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, dropTargetLayout, 2865 mTargetCell); 2866 float distance = dropTargetLayout.getDistanceFromCell(mDragViewVisualCenter[0], 2867 mDragViewVisualCenter[1], mTargetCell); 2868 if (mCreateUserFolderOnDrop && willCreateUserFolder((ItemInfo) d.dragInfo, 2869 dropTargetLayout, mTargetCell, distance, true)) { 2870 return true; 2871 } 2872 2873 if (mAddToExistingFolderOnDrop && willAddToExistingUserFolder((ItemInfo) d.dragInfo, 2874 dropTargetLayout, mTargetCell, distance)) { 2875 return true; 2876 } 2877 2878 int[] resultSpan = new int[2]; 2879 mTargetCell = dropTargetLayout.performReorder((int) mDragViewVisualCenter[0], 2880 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, spanX, spanY, 2881 null, mTargetCell, resultSpan, CellLayout.MODE_ACCEPT_DROP); 2882 boolean foundCell = mTargetCell[0] >= 0 && mTargetCell[1] >= 0; 2883 2884 // Don't accept the drop if there's no room for the item 2885 if (!foundCell) { 2886 // Don't show the message if we are dropping on the AllApps button and the hotseat 2887 // is full 2888 boolean isHotseat = mLauncher.isHotseatLayout(dropTargetLayout); 2889 if (mTargetCell != null && isHotseat) { 2890 Hotseat hotseat = mLauncher.getHotseat(); 2891 if (hotseat.isAllAppsButtonRank( 2892 hotseat.getOrderInHotseat(mTargetCell[0], mTargetCell[1]))) { 2893 return false; 2894 } 2895 } 2896 2897 mLauncher.showOutOfSpaceMessage(isHotseat); 2898 return false; 2899 } 2900 } 2901 2902 long screenId = getIdForScreen(dropTargetLayout); 2903 if (screenId == EXTRA_EMPTY_SCREEN_ID) { 2904 commitExtraEmptyScreen(); 2905 } 2906 2907 return true; 2908 } 2909 2910 boolean willCreateUserFolder(ItemInfo info, CellLayout target, int[] targetCell, float 2911 distance, boolean considerTimeout) { 2912 if (distance > mMaxDistanceForFolderCreation) return false; 2913 View dropOverView = target.getChildAt(targetCell[0], targetCell[1]); 2914 2915 if (dropOverView != null) { 2916 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) dropOverView.getLayoutParams(); 2917 if (lp.useTmpCoords && (lp.tmpCellX != lp.cellX || lp.tmpCellY != lp.tmpCellY)) { 2918 return false; 2919 } 2920 } 2921 2922 boolean hasntMoved = false; 2923 if (mDragInfo != null) { 2924 hasntMoved = dropOverView == mDragInfo.cell; 2925 } 2926 2927 if (dropOverView == null || hasntMoved || (considerTimeout && !mCreateUserFolderOnDrop)) { 2928 return false; 2929 } 2930 2931 boolean aboveShortcut = (dropOverView.getTag() instanceof ShortcutInfo); 2932 boolean willBecomeShortcut = 2933 (info.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPLICATION || 2934 info.itemType == LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT); 2935 2936 return (aboveShortcut && willBecomeShortcut); 2937 } 2938 2939 boolean willAddToExistingUserFolder(Object dragInfo, CellLayout target, int[] targetCell, 2940 float distance) { 2941 if (distance > mMaxDistanceForFolderCreation) return false; 2942 View dropOverView = target.getChildAt(targetCell[0], targetCell[1]); 2943 2944 if (dropOverView != null) { 2945 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) dropOverView.getLayoutParams(); 2946 if (lp.useTmpCoords && (lp.tmpCellX != lp.cellX || lp.tmpCellY != lp.tmpCellY)) { 2947 return false; 2948 } 2949 } 2950 2951 if (dropOverView instanceof FolderIcon) { 2952 FolderIcon fi = (FolderIcon) dropOverView; 2953 if (fi.acceptDrop(dragInfo)) { 2954 return true; 2955 } 2956 } 2957 return false; 2958 } 2959 2960 boolean createUserFolderIfNecessary(View newView, long container, CellLayout target, 2961 int[] targetCell, float distance, boolean external, DragView dragView, 2962 Runnable postAnimationRunnable) { 2963 if (distance > mMaxDistanceForFolderCreation) return false; 2964 View v = target.getChildAt(targetCell[0], targetCell[1]); 2965 2966 boolean hasntMoved = false; 2967 if (mDragInfo != null) { 2968 CellLayout cellParent = getParentCellLayoutForView(mDragInfo.cell); 2969 hasntMoved = (mDragInfo.cellX == targetCell[0] && 2970 mDragInfo.cellY == targetCell[1]) && (cellParent == target); 2971 } 2972 2973 if (v == null || hasntMoved || !mCreateUserFolderOnDrop) return false; 2974 mCreateUserFolderOnDrop = false; 2975 final long screenId = (targetCell == null) ? mDragInfo.screenId : getIdForScreen(target); 2976 2977 boolean aboveShortcut = (v.getTag() instanceof ShortcutInfo); 2978 boolean willBecomeShortcut = (newView.getTag() instanceof ShortcutInfo); 2979 2980 if (aboveShortcut && willBecomeShortcut) { 2981 ShortcutInfo sourceInfo = (ShortcutInfo) newView.getTag(); 2982 ShortcutInfo destInfo = (ShortcutInfo) v.getTag(); 2983 // if the drag started here, we need to remove it from the workspace 2984 if (!external) { 2985 getParentCellLayoutForView(mDragInfo.cell).removeView(mDragInfo.cell); 2986 } 2987 2988 Rect folderLocation = new Rect(); 2989 float scale = mLauncher.getDragLayer().getDescendantRectRelativeToSelf(v, folderLocation); 2990 target.removeView(v); 2991 2992 FolderIcon fi = 2993 mLauncher.addFolder(target, container, screenId, targetCell[0], targetCell[1]); 2994 destInfo.cellX = -1; 2995 destInfo.cellY = -1; 2996 sourceInfo.cellX = -1; 2997 sourceInfo.cellY = -1; 2998 2999 // If the dragView is null, we can't animate 3000 boolean animate = dragView != null; 3001 if (animate) { 3002 fi.performCreateAnimation(destInfo, v, sourceInfo, dragView, folderLocation, scale, 3003 postAnimationRunnable); 3004 } else { 3005 fi.addItem(destInfo); 3006 fi.addItem(sourceInfo); 3007 } 3008 return true; 3009 } 3010 return false; 3011 } 3012 3013 boolean addToExistingFolderIfNecessary(View newView, CellLayout target, int[] targetCell, 3014 float distance, DragObject d, boolean external) { 3015 if (distance > mMaxDistanceForFolderCreation) return false; 3016 3017 View dropOverView = target.getChildAt(targetCell[0], targetCell[1]); 3018 if (!mAddToExistingFolderOnDrop) return false; 3019 mAddToExistingFolderOnDrop = false; 3020 3021 if (dropOverView instanceof FolderIcon) { 3022 FolderIcon fi = (FolderIcon) dropOverView; 3023 if (fi.acceptDrop(d.dragInfo)) { 3024 fi.onDrop(d); 3025 3026 // if the drag started here, we need to remove it from the workspace 3027 if (!external) { 3028 getParentCellLayoutForView(mDragInfo.cell).removeView(mDragInfo.cell); 3029 } 3030 return true; 3031 } 3032 } 3033 return false; 3034 } 3035 3036 public void onDrop(final DragObject d) { 3037 mDragViewVisualCenter = getDragViewVisualCenter(d.x, d.y, d.xOffset, d.yOffset, d.dragView, 3038 mDragViewVisualCenter); 3039 3040 CellLayout dropTargetLayout = mDropToLayout; 3041 3042 // We want the point to be mapped to the dragTarget. 3043 if (dropTargetLayout != null) { 3044 if (mLauncher.isHotseatLayout(dropTargetLayout)) { 3045 mapPointFromSelfToHotseatLayout(mLauncher.getHotseat(), mDragViewVisualCenter); 3046 } else { 3047 mapPointFromSelfToChild(dropTargetLayout, mDragViewVisualCenter, null); 3048 } 3049 } 3050 3051 int snapScreen = -1; 3052 boolean resizeOnDrop = false; 3053 if (d.dragSource != this) { 3054 final int[] touchXY = new int[] { (int) mDragViewVisualCenter[0], 3055 (int) mDragViewVisualCenter[1] }; 3056 onDropExternal(touchXY, d.dragInfo, dropTargetLayout, false, d); 3057 } else if (mDragInfo != null) { 3058 final View cell = mDragInfo.cell; 3059 3060 Runnable resizeRunnable = null; 3061 if (dropTargetLayout != null && !d.cancelled) { 3062 // Move internally 3063 boolean hasMovedLayouts = (getParentCellLayoutForView(cell) != dropTargetLayout); 3064 boolean hasMovedIntoHotseat = mLauncher.isHotseatLayout(dropTargetLayout); 3065 long container = hasMovedIntoHotseat ? 3066 LauncherSettings.Favorites.CONTAINER_HOTSEAT : 3067 LauncherSettings.Favorites.CONTAINER_DESKTOP; 3068 long screenId = (mTargetCell[0] < 0) ? 3069 mDragInfo.screenId : getIdForScreen(dropTargetLayout); 3070 int spanX = mDragInfo != null ? mDragInfo.spanX : 1; 3071 int spanY = mDragInfo != null ? mDragInfo.spanY : 1; 3072 // First we find the cell nearest to point at which the item is 3073 // dropped, without any consideration to whether there is an item there. 3074 3075 mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], (int) 3076 mDragViewVisualCenter[1], spanX, spanY, dropTargetLayout, mTargetCell); 3077 float distance = dropTargetLayout.getDistanceFromCell(mDragViewVisualCenter[0], 3078 mDragViewVisualCenter[1], mTargetCell); 3079 3080 // If the item being dropped is a shortcut and the nearest drop 3081 // cell also contains a shortcut, then create a folder with the two shortcuts. 3082 if (!mInScrollArea && createUserFolderIfNecessary(cell, container, 3083 dropTargetLayout, mTargetCell, distance, false, d.dragView, null)) { 3084 return; 3085 } 3086 3087 if (addToExistingFolderIfNecessary(cell, dropTargetLayout, mTargetCell, 3088 distance, d, false)) { 3089 return; 3090 } 3091 3092 // Aside from the special case where we're dropping a shortcut onto a shortcut, 3093 // we need to find the nearest cell location that is vacant 3094 ItemInfo item = (ItemInfo) d.dragInfo; 3095 int minSpanX = item.spanX; 3096 int minSpanY = item.spanY; 3097 if (item.minSpanX > 0 && item.minSpanY > 0) { 3098 minSpanX = item.minSpanX; 3099 minSpanY = item.minSpanY; 3100 } 3101 3102 int[] resultSpan = new int[2]; 3103 mTargetCell = dropTargetLayout.performReorder((int) mDragViewVisualCenter[0], 3104 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, spanX, spanY, cell, 3105 mTargetCell, resultSpan, CellLayout.MODE_ON_DROP); 3106 3107 boolean foundCell = mTargetCell[0] >= 0 && mTargetCell[1] >= 0; 3108 3109 // if the widget resizes on drop 3110 if (foundCell && (cell instanceof AppWidgetHostView) && 3111 (resultSpan[0] != item.spanX || resultSpan[1] != item.spanY)) { 3112 resizeOnDrop = true; 3113 item.spanX = resultSpan[0]; 3114 item.spanY = resultSpan[1]; 3115 AppWidgetHostView awhv = (AppWidgetHostView) cell; 3116 AppWidgetResizeFrame.updateWidgetSizeRanges(awhv, mLauncher, resultSpan[0], 3117 resultSpan[1]); 3118 } 3119 3120 if (getScreenIdForPageIndex(mCurrentPage) != screenId && !hasMovedIntoHotseat) { 3121 snapScreen = getPageIndexForScreenId(screenId); 3122 snapToPage(snapScreen); 3123 } 3124 3125 if (foundCell) { 3126 final ItemInfo info = (ItemInfo) cell.getTag(); 3127 if (hasMovedLayouts) { 3128 // Reparent the view 3129 CellLayout parentCell = getParentCellLayoutForView(cell); 3130 if (parentCell != null) { 3131 parentCell.removeView(cell); 3132 } else if (LauncherAppState.isDogfoodBuild()) { 3133 throw new NullPointerException("mDragInfo.cell has null parent"); 3134 } 3135 addInScreen(cell, container, screenId, mTargetCell[0], mTargetCell[1], 3136 info.spanX, info.spanY); 3137 } 3138 3139 // update the item's position after drop 3140 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) cell.getLayoutParams(); 3141 lp.cellX = lp.tmpCellX = mTargetCell[0]; 3142 lp.cellY = lp.tmpCellY = mTargetCell[1]; 3143 lp.cellHSpan = item.spanX; 3144 lp.cellVSpan = item.spanY; 3145 lp.isLockedToGrid = true; 3146 3147 if (container != LauncherSettings.Favorites.CONTAINER_HOTSEAT && 3148 cell instanceof LauncherAppWidgetHostView) { 3149 final CellLayout cellLayout = dropTargetLayout; 3150 // We post this call so that the widget has a chance to be placed 3151 // in its final location 3152 3153 final LauncherAppWidgetHostView hostView = (LauncherAppWidgetHostView) cell; 3154 LauncherAppWidgetProviderInfo pInfo = (LauncherAppWidgetProviderInfo) 3155 hostView.getAppWidgetInfo(); 3156 if (pInfo.resizeMode != AppWidgetProviderInfo.RESIZE_NONE) { 3157 final Runnable addResizeFrame = new Runnable() { 3158 public void run() { 3159 DragLayer dragLayer = mLauncher.getDragLayer(); 3160 dragLayer.addResizeFrame(info, hostView, cellLayout); 3161 } 3162 }; 3163 resizeRunnable = (new Runnable() { 3164 public void run() { 3165 if (!isPageMoving()) { 3166 addResizeFrame.run(); 3167 } else { 3168 mDelayedResizeRunnable = addResizeFrame; 3169 } 3170 } 3171 }); 3172 } 3173 } 3174 3175 LauncherModel.modifyItemInDatabase(mLauncher, info, container, screenId, lp.cellX, 3176 lp.cellY, item.spanX, item.spanY); 3177 } else { 3178 // If we can't find a drop location, we return the item to its original position 3179 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) cell.getLayoutParams(); 3180 mTargetCell[0] = lp.cellX; 3181 mTargetCell[1] = lp.cellY; 3182 CellLayout layout = (CellLayout) cell.getParent().getParent(); 3183 layout.markCellsAsOccupiedForView(cell); 3184 } 3185 } 3186 3187 final CellLayout parent = (CellLayout) cell.getParent().getParent(); 3188 final Runnable finalResizeRunnable = resizeRunnable; 3189 // Prepare it to be animated into its new position 3190 // This must be called after the view has been re-parented 3191 final Runnable onCompleteRunnable = new Runnable() { 3192 @Override 3193 public void run() { 3194 mAnimatingViewIntoPlace = false; 3195 updateChildrenLayersEnabled(false); 3196 if (finalResizeRunnable != null) { 3197 finalResizeRunnable.run(); 3198 } 3199 } 3200 }; 3201 mAnimatingViewIntoPlace = true; 3202 if (d.dragView.hasDrawn()) { 3203 final ItemInfo info = (ItemInfo) cell.getTag(); 3204 boolean isWidget = info.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET 3205 || info.itemType == LauncherSettings.Favorites.ITEM_TYPE_CUSTOM_APPWIDGET; 3206 if (isWidget) { 3207 int animationType = resizeOnDrop ? ANIMATE_INTO_POSITION_AND_RESIZE : 3208 ANIMATE_INTO_POSITION_AND_DISAPPEAR; 3209 animateWidgetDrop(info, parent, d.dragView, 3210 onCompleteRunnable, animationType, cell, false); 3211 } else { 3212 int duration = snapScreen < 0 ? -1 : ADJACENT_SCREEN_DROP_DURATION; 3213 mLauncher.getDragLayer().animateViewIntoPosition(d.dragView, cell, duration, 3214 onCompleteRunnable, this); 3215 } 3216 } else { 3217 d.deferDragViewCleanupPostAnimation = false; 3218 cell.setVisibility(VISIBLE); 3219 } 3220 parent.onDropChild(cell); 3221 } 3222 } 3223 3224 public void setFinalScrollForPageChange(int pageIndex) { 3225 CellLayout cl = (CellLayout) getChildAt(pageIndex); 3226 if (cl != null) { 3227 mSavedScrollX = getScrollX(); 3228 mSavedTranslationX = cl.getTranslationX(); 3229 mSavedRotationY = cl.getRotationY(); 3230 final int newX = getScrollForPage(pageIndex); 3231 setScrollX(newX); 3232 cl.setTranslationX(0f); 3233 cl.setRotationY(0f); 3234 } 3235 } 3236 3237 public void resetFinalScrollForPageChange(int pageIndex) { 3238 if (pageIndex >= 0) { 3239 CellLayout cl = (CellLayout) getChildAt(pageIndex); 3240 setScrollX(mSavedScrollX); 3241 cl.setTranslationX(mSavedTranslationX); 3242 cl.setRotationY(mSavedRotationY); 3243 } 3244 } 3245 3246 public void getViewLocationRelativeToSelf(View v, int[] location) { 3247 getLocationInWindow(location); 3248 int x = location[0]; 3249 int y = location[1]; 3250 3251 v.getLocationInWindow(location); 3252 int vX = location[0]; 3253 int vY = location[1]; 3254 3255 location[0] = vX - x; 3256 location[1] = vY - y; 3257 } 3258 3259 public void onDragEnter(DragObject d) { 3260 mDragEnforcer.onDragEnter(); 3261 mCreateUserFolderOnDrop = false; 3262 mAddToExistingFolderOnDrop = false; 3263 3264 mDropToLayout = null; 3265 CellLayout layout = getCurrentDropLayout(); 3266 setCurrentDropLayout(layout); 3267 setCurrentDragOverlappingLayout(layout); 3268 3269 if (!workspaceInModalState()) { 3270 mLauncher.getDragLayer().showPageHints(); 3271 } 3272 } 3273 3274 /** Return a rect that has the cellWidth/cellHeight (left, top), and 3275 * widthGap/heightGap (right, bottom) */ 3276 static Rect getCellLayoutMetrics(Launcher launcher, int orientation) { 3277 LauncherAppState app = LauncherAppState.getInstance(); 3278 DeviceProfile grid = app.getDynamicGrid().getDeviceProfile(); 3279 3280 Display display = launcher.getWindowManager().getDefaultDisplay(); 3281 Point smallestSize = new Point(); 3282 Point largestSize = new Point(); 3283 display.getCurrentSizeRange(smallestSize, largestSize); 3284 int countX = (int) grid.numColumns; 3285 int countY = (int) grid.numRows; 3286 if (orientation == CellLayout.LANDSCAPE) { 3287 if (mLandscapeCellLayoutMetrics == null) { 3288 Rect padding = grid.getWorkspacePadding(CellLayout.LANDSCAPE); 3289 int width = largestSize.x - padding.left - padding.right; 3290 int height = smallestSize.y - padding.top - padding.bottom; 3291 mLandscapeCellLayoutMetrics = new Rect(); 3292 mLandscapeCellLayoutMetrics.set( 3293 grid.calculateCellWidth(width, countX), 3294 grid.calculateCellHeight(height, countY), 0, 0); 3295 } 3296 return mLandscapeCellLayoutMetrics; 3297 } else if (orientation == CellLayout.PORTRAIT) { 3298 if (mPortraitCellLayoutMetrics == null) { 3299 Rect padding = grid.getWorkspacePadding(CellLayout.PORTRAIT); 3300 int width = smallestSize.x - padding.left - padding.right; 3301 int height = largestSize.y - padding.top - padding.bottom; 3302 mPortraitCellLayoutMetrics = new Rect(); 3303 mPortraitCellLayoutMetrics.set( 3304 grid.calculateCellWidth(width, countX), 3305 grid.calculateCellHeight(height, countY), 0, 0); 3306 } 3307 return mPortraitCellLayoutMetrics; 3308 } 3309 return null; 3310 } 3311 3312 public void onDragExit(DragObject d) { 3313 mDragEnforcer.onDragExit(); 3314 3315 // Here we store the final page that will be dropped to, if the workspace in fact 3316 // receives the drop 3317 if (mInScrollArea) { 3318 if (isPageMoving()) { 3319 // If the user drops while the page is scrolling, we should use that page as the 3320 // destination instead of the page that is being hovered over. 3321 mDropToLayout = (CellLayout) getPageAt(getNextPage()); 3322 } else { 3323 mDropToLayout = mDragOverlappingLayout; 3324 } 3325 } else { 3326 mDropToLayout = mDragTargetLayout; 3327 } 3328 3329 if (mDragMode == DRAG_MODE_CREATE_FOLDER) { 3330 mCreateUserFolderOnDrop = true; 3331 } else if (mDragMode == DRAG_MODE_ADD_TO_FOLDER) { 3332 mAddToExistingFolderOnDrop = true; 3333 } 3334 3335 // Reset the scroll area and previous drag target 3336 onResetScrollArea(); 3337 setCurrentDropLayout(null); 3338 setCurrentDragOverlappingLayout(null); 3339 3340 mSpringLoadedDragController.cancel(); 3341 3342 if (!mIsPageMoving) { 3343 hideOutlines(); 3344 } 3345 mLauncher.getDragLayer().hidePageHints(); 3346 } 3347 3348 void setCurrentDropLayout(CellLayout layout) { 3349 if (mDragTargetLayout != null) { 3350 mDragTargetLayout.revertTempState(); 3351 mDragTargetLayout.onDragExit(); 3352 } 3353 mDragTargetLayout = layout; 3354 if (mDragTargetLayout != null) { 3355 mDragTargetLayout.onDragEnter(); 3356 } 3357 cleanupReorder(true); 3358 cleanupFolderCreation(); 3359 setCurrentDropOverCell(-1, -1); 3360 } 3361 3362 void setCurrentDragOverlappingLayout(CellLayout layout) { 3363 if (mDragOverlappingLayout != null) { 3364 mDragOverlappingLayout.setIsDragOverlapping(false); 3365 } 3366 mDragOverlappingLayout = layout; 3367 if (mDragOverlappingLayout != null) { 3368 mDragOverlappingLayout.setIsDragOverlapping(true); 3369 } 3370 invalidate(); 3371 } 3372 3373 void setCurrentDropOverCell(int x, int y) { 3374 if (x != mDragOverX || y != mDragOverY) { 3375 mDragOverX = x; 3376 mDragOverY = y; 3377 setDragMode(DRAG_MODE_NONE); 3378 } 3379 } 3380 3381 void setDragMode(int dragMode) { 3382 if (dragMode != mDragMode) { 3383 if (dragMode == DRAG_MODE_NONE) { 3384 cleanupAddToFolder(); 3385 // We don't want to cancel the re-order alarm every time the target cell changes 3386 // as this feels to slow / unresponsive. 3387 cleanupReorder(false); 3388 cleanupFolderCreation(); 3389 } else if (dragMode == DRAG_MODE_ADD_TO_FOLDER) { 3390 cleanupReorder(true); 3391 cleanupFolderCreation(); 3392 } else if (dragMode == DRAG_MODE_CREATE_FOLDER) { 3393 cleanupAddToFolder(); 3394 cleanupReorder(true); 3395 } else if (dragMode == DRAG_MODE_REORDER) { 3396 cleanupAddToFolder(); 3397 cleanupFolderCreation(); 3398 } 3399 mDragMode = dragMode; 3400 } 3401 } 3402 3403 private void cleanupFolderCreation() { 3404 if (mDragFolderRingAnimator != null) { 3405 mDragFolderRingAnimator.animateToNaturalState(); 3406 mDragFolderRingAnimator = null; 3407 } 3408 mFolderCreationAlarm.setOnAlarmListener(null); 3409 mFolderCreationAlarm.cancelAlarm(); 3410 } 3411 3412 private void cleanupAddToFolder() { 3413 if (mDragOverFolderIcon != null) { 3414 mDragOverFolderIcon.onDragExit(null); 3415 mDragOverFolderIcon = null; 3416 } 3417 } 3418 3419 private void cleanupReorder(boolean cancelAlarm) { 3420 // Any pending reorders are canceled 3421 if (cancelAlarm) { 3422 mReorderAlarm.cancelAlarm(); 3423 } 3424 mLastReorderX = -1; 3425 mLastReorderY = -1; 3426 } 3427 3428 /* 3429 * 3430 * Convert the 2D coordinate xy from the parent View's coordinate space to this CellLayout's 3431 * coordinate space. The argument xy is modified with the return result. 3432 * 3433 * if cachedInverseMatrix is not null, this method will just use that matrix instead of 3434 * computing it itself; we use this to avoid redundant matrix inversions in 3435 * findMatchingPageForDragOver 3436 * 3437 */ 3438 void mapPointFromSelfToChild(View v, float[] xy, Matrix cachedInverseMatrix) { 3439 xy[0] = xy[0] - v.getLeft(); 3440 xy[1] = xy[1] - v.getTop(); 3441 } 3442 3443 boolean isPointInSelfOverHotseat(int x, int y, Rect r) { 3444 if (r == null) { 3445 r = new Rect(); 3446 } 3447 mTempPt[0] = x; 3448 mTempPt[1] = y; 3449 mLauncher.getDragLayer().getDescendantCoordRelativeToSelf(this, mTempPt, true); 3450 3451 LauncherAppState app = LauncherAppState.getInstance(); 3452 DeviceProfile grid = app.getDynamicGrid().getDeviceProfile(); 3453 r = grid.getHotseatRect(); 3454 if (r.contains(mTempPt[0], mTempPt[1])) { 3455 return true; 3456 } 3457 return false; 3458 } 3459 3460 void mapPointFromSelfToHotseatLayout(Hotseat hotseat, float[] xy) { 3461 mTempPt[0] = (int) xy[0]; 3462 mTempPt[1] = (int) xy[1]; 3463 mLauncher.getDragLayer().getDescendantCoordRelativeToSelf(this, mTempPt, true); 3464 mLauncher.getDragLayer().mapCoordInSelfToDescendent(hotseat.getLayout(), mTempPt); 3465 3466 xy[0] = mTempPt[0]; 3467 xy[1] = mTempPt[1]; 3468 } 3469 3470 /* 3471 * 3472 * Convert the 2D coordinate xy from this CellLayout's coordinate space to 3473 * the parent View's coordinate space. The argument xy is modified with the return result. 3474 * 3475 */ 3476 void mapPointFromChildToSelf(View v, float[] xy) { 3477 xy[0] += v.getLeft(); 3478 xy[1] += v.getTop(); 3479 } 3480 3481 static private float squaredDistance(float[] point1, float[] point2) { 3482 float distanceX = point1[0] - point2[0]; 3483 float distanceY = point2[1] - point2[1]; 3484 return distanceX * distanceX + distanceY * distanceY; 3485 } 3486 3487 /* 3488 * 3489 * This method returns the CellLayout that is currently being dragged to. In order to drag 3490 * to a CellLayout, either the touch point must be directly over the CellLayout, or as a second 3491 * strategy, we see if the dragView is overlapping any CellLayout and choose the closest one 3492 * 3493 * Return null if no CellLayout is currently being dragged over 3494 * 3495 */ 3496 private CellLayout findMatchingPageForDragOver( 3497 DragView dragView, float originX, float originY, boolean exact) { 3498 // We loop through all the screens (ie CellLayouts) and see which ones overlap 3499 // with the item being dragged and then choose the one that's closest to the touch point 3500 final int screenCount = getChildCount(); 3501 CellLayout bestMatchingScreen = null; 3502 float smallestDistSoFar = Float.MAX_VALUE; 3503 3504 for (int i = 0; i < screenCount; i++) { 3505 // The custom content screen is not a valid drag over option 3506 if (mScreenOrder.get(i) == CUSTOM_CONTENT_SCREEN_ID) { 3507 continue; 3508 } 3509 3510 CellLayout cl = (CellLayout) getChildAt(i); 3511 3512 final float[] touchXy = {originX, originY}; 3513 // Transform the touch coordinates to the CellLayout's local coordinates 3514 // If the touch point is within the bounds of the cell layout, we can return immediately 3515 cl.getMatrix().invert(mTempInverseMatrix); 3516 mapPointFromSelfToChild(cl, touchXy, mTempInverseMatrix); 3517 3518 if (touchXy[0] >= 0 && touchXy[0] <= cl.getWidth() && 3519 touchXy[1] >= 0 && touchXy[1] <= cl.getHeight()) { 3520 return cl; 3521 } 3522 3523 if (!exact) { 3524 // Get the center of the cell layout in screen coordinates 3525 final float[] cellLayoutCenter = mTempCellLayoutCenterCoordinates; 3526 cellLayoutCenter[0] = cl.getWidth()/2; 3527 cellLayoutCenter[1] = cl.getHeight()/2; 3528 mapPointFromChildToSelf(cl, cellLayoutCenter); 3529 3530 touchXy[0] = originX; 3531 touchXy[1] = originY; 3532 3533 // Calculate the distance between the center of the CellLayout 3534 // and the touch point 3535 float dist = squaredDistance(touchXy, cellLayoutCenter); 3536 3537 if (dist < smallestDistSoFar) { 3538 smallestDistSoFar = dist; 3539 bestMatchingScreen = cl; 3540 } 3541 } 3542 } 3543 return bestMatchingScreen; 3544 } 3545 3546 // This is used to compute the visual center of the dragView. This point is then 3547 // used to visualize drop locations and determine where to drop an item. The idea is that 3548 // the visual center represents the user's interpretation of where the item is, and hence 3549 // is the appropriate point to use when determining drop location. 3550 private float[] getDragViewVisualCenter(int x, int y, int xOffset, int yOffset, 3551 DragView dragView, float[] recycle) { 3552 float res[]; 3553 if (recycle == null) { 3554 res = new float[2]; 3555 } else { 3556 res = recycle; 3557 } 3558 3559 // First off, the drag view has been shifted in a way that is not represented in the 3560 // x and y values or the x/yOffsets. Here we account for that shift. 3561 x += getResources().getDimensionPixelSize(R.dimen.dragViewOffsetX); 3562 y += getResources().getDimensionPixelSize(R.dimen.dragViewOffsetY); 3563 3564 // These represent the visual top and left of drag view if a dragRect was provided. 3565 // If a dragRect was not provided, then they correspond to the actual view left and 3566 // top, as the dragRect is in that case taken to be the entire dragView. 3567 // R.dimen.dragViewOffsetY. 3568 int left = x - xOffset; 3569 int top = y - yOffset; 3570 3571 // In order to find the visual center, we shift by half the dragRect 3572 res[0] = left + dragView.getDragRegion().width() / 2; 3573 res[1] = top + dragView.getDragRegion().height() / 2; 3574 3575 return res; 3576 } 3577 3578 private boolean isDragWidget(DragObject d) { 3579 return (d.dragInfo instanceof LauncherAppWidgetInfo || 3580 d.dragInfo instanceof PendingAddWidgetInfo); 3581 } 3582 private boolean isExternalDragWidget(DragObject d) { 3583 return d.dragSource != this && isDragWidget(d); 3584 } 3585 3586 public void onDragOver(DragObject d) { 3587 // Skip drag over events while we are dragging over side pages 3588 if (mInScrollArea || !transitionStateShouldAllowDrop()) return; 3589 3590 Rect r = new Rect(); 3591 CellLayout layout = null; 3592 ItemInfo item = (ItemInfo) d.dragInfo; 3593 if (item == null) { 3594 if (LauncherAppState.isDogfoodBuild()) { 3595 throw new NullPointerException("DragObject has null info"); 3596 } 3597 return; 3598 } 3599 3600 // Ensure that we have proper spans for the item that we are dropping 3601 if (item.spanX < 0 || item.spanY < 0) throw new RuntimeException("Improper spans found"); 3602 mDragViewVisualCenter = getDragViewVisualCenter(d.x, d.y, d.xOffset, d.yOffset, 3603 d.dragView, mDragViewVisualCenter); 3604 3605 final View child = (mDragInfo == null) ? null : mDragInfo.cell; 3606 // Identify whether we have dragged over a side page 3607 if (workspaceInModalState()) { 3608 if (mLauncher.getHotseat() != null && !isExternalDragWidget(d)) { 3609 if (isPointInSelfOverHotseat(d.x, d.y, r)) { 3610 layout = mLauncher.getHotseat().getLayout(); 3611 } 3612 } 3613 if (layout == null) { 3614 layout = findMatchingPageForDragOver(d.dragView, d.x, d.y, false); 3615 } 3616 if (layout != mDragTargetLayout) { 3617 setCurrentDropLayout(layout); 3618 setCurrentDragOverlappingLayout(layout); 3619 3620 boolean isInSpringLoadedMode = (mState == State.SPRING_LOADED); 3621 if (isInSpringLoadedMode) { 3622 if (mLauncher.isHotseatLayout(layout)) { 3623 mSpringLoadedDragController.cancel(); 3624 } else { 3625 mSpringLoadedDragController.setAlarm(mDragTargetLayout); 3626 } 3627 } 3628 } 3629 } else { 3630 // Test to see if we are over the hotseat otherwise just use the current page 3631 if (mLauncher.getHotseat() != null && !isDragWidget(d)) { 3632 if (isPointInSelfOverHotseat(d.x, d.y, r)) { 3633 layout = mLauncher.getHotseat().getLayout(); 3634 } 3635 } 3636 if (layout == null) { 3637 layout = getCurrentDropLayout(); 3638 } 3639 if (layout != mDragTargetLayout) { 3640 setCurrentDropLayout(layout); 3641 setCurrentDragOverlappingLayout(layout); 3642 } 3643 } 3644 3645 // Handle the drag over 3646 if (mDragTargetLayout != null) { 3647 // We want the point to be mapped to the dragTarget. 3648 if (mLauncher.isHotseatLayout(mDragTargetLayout)) { 3649 mapPointFromSelfToHotseatLayout(mLauncher.getHotseat(), mDragViewVisualCenter); 3650 } else { 3651 mapPointFromSelfToChild(mDragTargetLayout, mDragViewVisualCenter, null); 3652 } 3653 3654 ItemInfo info = (ItemInfo) d.dragInfo; 3655 3656 int minSpanX = item.spanX; 3657 int minSpanY = item.spanY; 3658 if (item.minSpanX > 0 && item.minSpanY > 0) { 3659 minSpanX = item.minSpanX; 3660 minSpanY = item.minSpanY; 3661 } 3662 3663 mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], 3664 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, 3665 mDragTargetLayout, mTargetCell); 3666 int reorderX = mTargetCell[0]; 3667 int reorderY = mTargetCell[1]; 3668 3669 setCurrentDropOverCell(mTargetCell[0], mTargetCell[1]); 3670 3671 float targetCellDistance = mDragTargetLayout.getDistanceFromCell( 3672 mDragViewVisualCenter[0], mDragViewVisualCenter[1], mTargetCell); 3673 3674 final View dragOverView = mDragTargetLayout.getChildAt(mTargetCell[0], 3675 mTargetCell[1]); 3676 3677 manageFolderFeedback(info, mDragTargetLayout, mTargetCell, 3678 targetCellDistance, dragOverView); 3679 3680 boolean nearestDropOccupied = mDragTargetLayout.isNearestDropLocationOccupied((int) 3681 mDragViewVisualCenter[0], (int) mDragViewVisualCenter[1], item.spanX, 3682 item.spanY, child, mTargetCell); 3683 3684 if (!nearestDropOccupied) { 3685 mDragTargetLayout.visualizeDropLocation(child, mDragOutline, 3686 (int) mDragViewVisualCenter[0], (int) mDragViewVisualCenter[1], 3687 mTargetCell[0], mTargetCell[1], item.spanX, item.spanY, false, 3688 d.dragView.getDragVisualizeOffset(), d.dragView.getDragRegion()); 3689 } else if ((mDragMode == DRAG_MODE_NONE || mDragMode == DRAG_MODE_REORDER) 3690 && !mReorderAlarm.alarmPending() && (mLastReorderX != reorderX || 3691 mLastReorderY != reorderY)) { 3692 3693 int[] resultSpan = new int[2]; 3694 mDragTargetLayout.performReorder((int) mDragViewVisualCenter[0], 3695 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, item.spanX, item.spanY, 3696 child, mTargetCell, resultSpan, CellLayout.MODE_SHOW_REORDER_HINT); 3697 3698 // Otherwise, if we aren't adding to or creating a folder and there's no pending 3699 // reorder, then we schedule a reorder 3700 ReorderAlarmListener listener = new ReorderAlarmListener(mDragViewVisualCenter, 3701 minSpanX, minSpanY, item.spanX, item.spanY, d.dragView, child); 3702 mReorderAlarm.setOnAlarmListener(listener); 3703 mReorderAlarm.setAlarm(REORDER_TIMEOUT); 3704 } 3705 3706 if (mDragMode == DRAG_MODE_CREATE_FOLDER || mDragMode == DRAG_MODE_ADD_TO_FOLDER || 3707 !nearestDropOccupied) { 3708 if (mDragTargetLayout != null) { 3709 mDragTargetLayout.revertTempState(); 3710 } 3711 } 3712 } 3713 } 3714 3715 private void manageFolderFeedback(ItemInfo info, CellLayout targetLayout, 3716 int[] targetCell, float distance, View dragOverView) { 3717 boolean userFolderPending = willCreateUserFolder(info, targetLayout, targetCell, distance, 3718 false); 3719 3720 if (mDragMode == DRAG_MODE_NONE && userFolderPending && 3721 !mFolderCreationAlarm.alarmPending()) { 3722 mFolderCreationAlarm.setOnAlarmListener(new 3723 FolderCreationAlarmListener(targetLayout, targetCell[0], targetCell[1])); 3724 mFolderCreationAlarm.setAlarm(FOLDER_CREATION_TIMEOUT); 3725 return; 3726 } 3727 3728 boolean willAddToFolder = 3729 willAddToExistingUserFolder(info, targetLayout, targetCell, distance); 3730 3731 if (willAddToFolder && mDragMode == DRAG_MODE_NONE) { 3732 mDragOverFolderIcon = ((FolderIcon) dragOverView); 3733 mDragOverFolderIcon.onDragEnter(info); 3734 if (targetLayout != null) { 3735 targetLayout.clearDragOutlines(); 3736 } 3737 setDragMode(DRAG_MODE_ADD_TO_FOLDER); 3738 return; 3739 } 3740 3741 if (mDragMode == DRAG_MODE_ADD_TO_FOLDER && !willAddToFolder) { 3742 setDragMode(DRAG_MODE_NONE); 3743 } 3744 if (mDragMode == DRAG_MODE_CREATE_FOLDER && !userFolderPending) { 3745 setDragMode(DRAG_MODE_NONE); 3746 } 3747 3748 return; 3749 } 3750 3751 class FolderCreationAlarmListener implements OnAlarmListener { 3752 CellLayout layout; 3753 int cellX; 3754 int cellY; 3755 3756 public FolderCreationAlarmListener(CellLayout layout, int cellX, int cellY) { 3757 this.layout = layout; 3758 this.cellX = cellX; 3759 this.cellY = cellY; 3760 } 3761 3762 public void onAlarm(Alarm alarm) { 3763 if (mDragFolderRingAnimator != null) { 3764 // This shouldn't happen ever, but just in case, make sure we clean up the mess. 3765 mDragFolderRingAnimator.animateToNaturalState(); 3766 } 3767 mDragFolderRingAnimator = new FolderRingAnimator(mLauncher, null); 3768 mDragFolderRingAnimator.setCell(cellX, cellY); 3769 mDragFolderRingAnimator.setCellLayout(layout); 3770 mDragFolderRingAnimator.animateToAcceptState(); 3771 layout.showFolderAccept(mDragFolderRingAnimator); 3772 layout.clearDragOutlines(); 3773 setDragMode(DRAG_MODE_CREATE_FOLDER); 3774 } 3775 } 3776 3777 class ReorderAlarmListener implements OnAlarmListener { 3778 float[] dragViewCenter; 3779 int minSpanX, minSpanY, spanX, spanY; 3780 DragView dragView; 3781 View child; 3782 3783 public ReorderAlarmListener(float[] dragViewCenter, int minSpanX, int minSpanY, int spanX, 3784 int spanY, DragView dragView, View child) { 3785 this.dragViewCenter = dragViewCenter; 3786 this.minSpanX = minSpanX; 3787 this.minSpanY = minSpanY; 3788 this.spanX = spanX; 3789 this.spanY = spanY; 3790 this.child = child; 3791 this.dragView = dragView; 3792 } 3793 3794 public void onAlarm(Alarm alarm) { 3795 int[] resultSpan = new int[2]; 3796 mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], 3797 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, mDragTargetLayout, 3798 mTargetCell); 3799 mLastReorderX = mTargetCell[0]; 3800 mLastReorderY = mTargetCell[1]; 3801 3802 mTargetCell = mDragTargetLayout.performReorder((int) mDragViewVisualCenter[0], 3803 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, spanX, spanY, 3804 child, mTargetCell, resultSpan, CellLayout.MODE_DRAG_OVER); 3805 3806 if (mTargetCell[0] < 0 || mTargetCell[1] < 0) { 3807 mDragTargetLayout.revertTempState(); 3808 } else { 3809 setDragMode(DRAG_MODE_REORDER); 3810 } 3811 3812 boolean resize = resultSpan[0] != spanX || resultSpan[1] != spanY; 3813 mDragTargetLayout.visualizeDropLocation(child, mDragOutline, 3814 (int) mDragViewVisualCenter[0], (int) mDragViewVisualCenter[1], 3815 mTargetCell[0], mTargetCell[1], resultSpan[0], resultSpan[1], resize, 3816 dragView.getDragVisualizeOffset(), dragView.getDragRegion()); 3817 } 3818 } 3819 3820 @Override 3821 public void getHitRectRelativeToDragLayer(Rect outRect) { 3822 // We want the workspace to have the whole area of the display (it will find the correct 3823 // cell layout to drop to in the existing drag/drop logic. 3824 mLauncher.getDragLayer().getDescendantRectRelativeToSelf(this, outRect); 3825 } 3826 3827 /** 3828 * Add the item specified by dragInfo to the given layout. 3829 * @return true if successful 3830 */ 3831 public boolean addExternalItemToScreen(ItemInfo dragInfo, CellLayout layout) { 3832 if (layout.findCellForSpan(mTempEstimate, dragInfo.spanX, dragInfo.spanY)) { 3833 onDropExternal(dragInfo.dropPos, (ItemInfo) dragInfo, (CellLayout) layout, false); 3834 return true; 3835 } 3836 mLauncher.showOutOfSpaceMessage(mLauncher.isHotseatLayout(layout)); 3837 return false; 3838 } 3839 3840 private void onDropExternal(int[] touchXY, Object dragInfo, 3841 CellLayout cellLayout, boolean insertAtFirst) { 3842 onDropExternal(touchXY, dragInfo, cellLayout, insertAtFirst, null); 3843 } 3844 3845 /** 3846 * Drop an item that didn't originate on one of the workspace screens. 3847 * It may have come from Launcher (e.g. from all apps or customize), or it may have 3848 * come from another app altogether. 3849 * 3850 * NOTE: This can also be called when we are outside of a drag event, when we want 3851 * to add an item to one of the workspace screens. 3852 */ 3853 private void onDropExternal(final int[] touchXY, final Object dragInfo, 3854 final CellLayout cellLayout, boolean insertAtFirst, DragObject d) { 3855 final Runnable exitSpringLoadedRunnable = new Runnable() { 3856 @Override 3857 public void run() { 3858 mLauncher.exitSpringLoadedDragModeDelayed(true, 3859 Launcher.EXIT_SPRINGLOADED_MODE_SHORT_TIMEOUT, null); 3860 } 3861 }; 3862 3863 ItemInfo info = (ItemInfo) dragInfo; 3864 int spanX = info.spanX; 3865 int spanY = info.spanY; 3866 if (mDragInfo != null) { 3867 spanX = mDragInfo.spanX; 3868 spanY = mDragInfo.spanY; 3869 } 3870 3871 final long container = mLauncher.isHotseatLayout(cellLayout) ? 3872 LauncherSettings.Favorites.CONTAINER_HOTSEAT : 3873 LauncherSettings.Favorites.CONTAINER_DESKTOP; 3874 final long screenId = getIdForScreen(cellLayout); 3875 if (!mLauncher.isHotseatLayout(cellLayout) 3876 && screenId != getScreenIdForPageIndex(mCurrentPage) 3877 && mState != State.SPRING_LOADED) { 3878 snapToScreenId(screenId, null); 3879 } 3880 3881 if (info instanceof PendingAddItemInfo) { 3882 final PendingAddItemInfo pendingInfo = (PendingAddItemInfo) dragInfo; 3883 3884 boolean findNearestVacantCell = true; 3885 if (pendingInfo.itemType == LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT) { 3886 mTargetCell = findNearestArea((int) touchXY[0], (int) touchXY[1], spanX, spanY, 3887 cellLayout, mTargetCell); 3888 float distance = cellLayout.getDistanceFromCell(mDragViewVisualCenter[0], 3889 mDragViewVisualCenter[1], mTargetCell); 3890 if (willCreateUserFolder((ItemInfo) d.dragInfo, cellLayout, mTargetCell, 3891 distance, true) || willAddToExistingUserFolder((ItemInfo) d.dragInfo, 3892 cellLayout, mTargetCell, distance)) { 3893 findNearestVacantCell = false; 3894 } 3895 } 3896 3897 final ItemInfo item = (ItemInfo) d.dragInfo; 3898 boolean updateWidgetSize = false; 3899 if (findNearestVacantCell) { 3900 int minSpanX = item.spanX; 3901 int minSpanY = item.spanY; 3902 if (item.minSpanX > 0 && item.minSpanY > 0) { 3903 minSpanX = item.minSpanX; 3904 minSpanY = item.minSpanY; 3905 } 3906 int[] resultSpan = new int[2]; 3907 mTargetCell = cellLayout.performReorder((int) mDragViewVisualCenter[0], 3908 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, info.spanX, info.spanY, 3909 null, mTargetCell, resultSpan, CellLayout.MODE_ON_DROP_EXTERNAL); 3910 3911 if (resultSpan[0] != item.spanX || resultSpan[1] != item.spanY) { 3912 updateWidgetSize = true; 3913 } 3914 item.spanX = resultSpan[0]; 3915 item.spanY = resultSpan[1]; 3916 } 3917 3918 Runnable onAnimationCompleteRunnable = new Runnable() { 3919 @Override 3920 public void run() { 3921 // Normally removeExtraEmptyScreen is called in Workspace#onDragEnd, but when 3922 // adding an item that may not be dropped right away (due to a config activity) 3923 // we defer the removal until the activity returns. 3924 deferRemoveExtraEmptyScreen(); 3925 3926 // When dragging and dropping from customization tray, we deal with creating 3927 // widgets/shortcuts/folders in a slightly different way 3928 mLauncher.addPendingItem(pendingInfo, container, screenId, mTargetCell, 3929 item.spanX, item.spanY); 3930 } 3931 }; 3932 boolean isWidget = pendingInfo.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET 3933 || pendingInfo.itemType == LauncherSettings.Favorites.ITEM_TYPE_CUSTOM_APPWIDGET; 3934 3935 View finalView = isWidget ? ((PendingAddWidgetInfo) pendingInfo).boundWidget : null; 3936 3937 if (finalView instanceof AppWidgetHostView && updateWidgetSize) { 3938 AppWidgetHostView awhv = (AppWidgetHostView) finalView; 3939 AppWidgetResizeFrame.updateWidgetSizeRanges(awhv, mLauncher, item.spanX, 3940 item.spanY); 3941 } 3942 3943 int animationStyle = ANIMATE_INTO_POSITION_AND_DISAPPEAR; 3944 if (isWidget && ((PendingAddWidgetInfo) pendingInfo).info != null && 3945 ((PendingAddWidgetInfo) pendingInfo).info.configure != null) { 3946 animationStyle = ANIMATE_INTO_POSITION_AND_REMAIN; 3947 } 3948 animateWidgetDrop(info, cellLayout, d.dragView, onAnimationCompleteRunnable, 3949 animationStyle, finalView, true); 3950 } else { 3951 // This is for other drag/drop cases, like dragging from All Apps 3952 View view = null; 3953 3954 switch (info.itemType) { 3955 case LauncherSettings.Favorites.ITEM_TYPE_APPLICATION: 3956 case LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT: 3957 if (info.container == NO_ID && info instanceof AppInfo) { 3958 // Came from all apps -- make a copy 3959 info = ((AppInfo) info).makeShortcut(); 3960 } 3961 view = mLauncher.createShortcut(R.layout.application, cellLayout, 3962 (ShortcutInfo) info); 3963 break; 3964 case LauncherSettings.Favorites.ITEM_TYPE_FOLDER: 3965 view = FolderIcon.fromXml(R.layout.folder_icon, mLauncher, cellLayout, 3966 (FolderInfo) info, mIconCache); 3967 break; 3968 default: 3969 throw new IllegalStateException("Unknown item type: " + info.itemType); 3970 } 3971 3972 // First we find the cell nearest to point at which the item is 3973 // dropped, without any consideration to whether there is an item there. 3974 if (touchXY != null) { 3975 mTargetCell = findNearestArea((int) touchXY[0], (int) touchXY[1], spanX, spanY, 3976 cellLayout, mTargetCell); 3977 float distance = cellLayout.getDistanceFromCell(mDragViewVisualCenter[0], 3978 mDragViewVisualCenter[1], mTargetCell); 3979 d.postAnimationRunnable = exitSpringLoadedRunnable; 3980 if (createUserFolderIfNecessary(view, container, cellLayout, mTargetCell, distance, 3981 true, d.dragView, d.postAnimationRunnable)) { 3982 return; 3983 } 3984 if (addToExistingFolderIfNecessary(view, cellLayout, mTargetCell, distance, d, 3985 true)) { 3986 return; 3987 } 3988 } 3989 3990 if (touchXY != null) { 3991 // when dragging and dropping, just find the closest free spot 3992 mTargetCell = cellLayout.performReorder((int) mDragViewVisualCenter[0], 3993 (int) mDragViewVisualCenter[1], 1, 1, 1, 1, 3994 null, mTargetCell, null, CellLayout.MODE_ON_DROP_EXTERNAL); 3995 } else { 3996 cellLayout.findCellForSpan(mTargetCell, 1, 1); 3997 } 3998 // Add the item to DB before adding to screen ensures that the container and other 3999 // values of the info is properly updated. 4000 LauncherModel.addOrMoveItemInDatabase(mLauncher, info, container, screenId, 4001 mTargetCell[0], mTargetCell[1]); 4002 4003 addInScreen(view, container, screenId, mTargetCell[0], mTargetCell[1], info.spanX, 4004 info.spanY, insertAtFirst); 4005 cellLayout.onDropChild(view); 4006 cellLayout.getShortcutsAndWidgets().measureChild(view); 4007 4008 if (d.dragView != null) { 4009 // We wrap the animation call in the temporary set and reset of the current 4010 // cellLayout to its final transform -- this means we animate the drag view to 4011 // the correct final location. 4012 setFinalTransitionTransform(cellLayout); 4013 mLauncher.getDragLayer().animateViewIntoPosition(d.dragView, view, 4014 exitSpringLoadedRunnable, this); 4015 resetTransitionTransform(cellLayout); 4016 } 4017 } 4018 } 4019 4020 public Bitmap createWidgetBitmap(ItemInfo widgetInfo, View layout) { 4021 int[] unScaledSize = mLauncher.getWorkspace().estimateItemSize(widgetInfo.spanX, 4022 widgetInfo.spanY, widgetInfo, false); 4023 int visibility = layout.getVisibility(); 4024 layout.setVisibility(VISIBLE); 4025 4026 int width = MeasureSpec.makeMeasureSpec(unScaledSize[0], MeasureSpec.EXACTLY); 4027 int height = MeasureSpec.makeMeasureSpec(unScaledSize[1], MeasureSpec.EXACTLY); 4028 Bitmap b = Bitmap.createBitmap(unScaledSize[0], unScaledSize[1], 4029 Bitmap.Config.ARGB_8888); 4030 mCanvas.setBitmap(b); 4031 4032 layout.measure(width, height); 4033 layout.layout(0, 0, unScaledSize[0], unScaledSize[1]); 4034 layout.draw(mCanvas); 4035 mCanvas.setBitmap(null); 4036 layout.setVisibility(visibility); 4037 return b; 4038 } 4039 4040 private void getFinalPositionForDropAnimation(int[] loc, float[] scaleXY, 4041 DragView dragView, CellLayout layout, ItemInfo info, int[] targetCell, 4042 boolean external, boolean scale) { 4043 // Now we animate the dragView, (ie. the widget or shortcut preview) into its final 4044 // location and size on the home screen. 4045 int spanX = info.spanX; 4046 int spanY = info.spanY; 4047 4048 Rect r = estimateItemPosition(layout, info, targetCell[0], targetCell[1], spanX, spanY); 4049 loc[0] = r.left; 4050 loc[1] = r.top; 4051 4052 setFinalTransitionTransform(layout); 4053 float cellLayoutScale = 4054 mLauncher.getDragLayer().getDescendantCoordRelativeToSelf(layout, loc, true); 4055 resetTransitionTransform(layout); 4056 4057 float dragViewScaleX; 4058 float dragViewScaleY; 4059 if (scale) { 4060 dragViewScaleX = (1.0f * r.width()) / dragView.getMeasuredWidth(); 4061 dragViewScaleY = (1.0f * r.height()) / dragView.getMeasuredHeight(); 4062 } else { 4063 dragViewScaleX = 1f; 4064 dragViewScaleY = 1f; 4065 } 4066 4067 // The animation will scale the dragView about its center, so we need to center about 4068 // the final location. 4069 loc[0] -= (dragView.getMeasuredWidth() - cellLayoutScale * r.width()) / 2; 4070 loc[1] -= (dragView.getMeasuredHeight() - cellLayoutScale * r.height()) / 2; 4071 4072 scaleXY[0] = dragViewScaleX * cellLayoutScale; 4073 scaleXY[1] = dragViewScaleY * cellLayoutScale; 4074 } 4075 4076 public void animateWidgetDrop(ItemInfo info, CellLayout cellLayout, DragView dragView, 4077 final Runnable onCompleteRunnable, int animationType, final View finalView, 4078 boolean external) { 4079 Rect from = new Rect(); 4080 mLauncher.getDragLayer().getViewRectRelativeToSelf(dragView, from); 4081 4082 int[] finalPos = new int[2]; 4083 float scaleXY[] = new float[2]; 4084 boolean scalePreview = !(info instanceof PendingAddShortcutInfo); 4085 getFinalPositionForDropAnimation(finalPos, scaleXY, dragView, cellLayout, info, mTargetCell, 4086 external, scalePreview); 4087 4088 Resources res = mLauncher.getResources(); 4089 final int duration = res.getInteger(R.integer.config_dropAnimMaxDuration) - 200; 4090 4091 // In the case where we've prebound the widget, we remove it from the DragLayer 4092 if (finalView instanceof AppWidgetHostView && external) { 4093 mLauncher.getDragLayer().removeView(finalView); 4094 } 4095 4096 boolean isWidget = info.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET || 4097 info.itemType == LauncherSettings.Favorites.ITEM_TYPE_CUSTOM_APPWIDGET; 4098 if ((animationType == ANIMATE_INTO_POSITION_AND_RESIZE || external) && finalView != null) { 4099 Bitmap crossFadeBitmap = createWidgetBitmap(info, finalView); 4100 dragView.setCrossFadeBitmap(crossFadeBitmap); 4101 dragView.crossFade((int) (duration * 0.8f)); 4102 } else if (isWidget && external) { 4103 scaleXY[0] = scaleXY[1] = Math.min(scaleXY[0], scaleXY[1]); 4104 } 4105 4106 DragLayer dragLayer = mLauncher.getDragLayer(); 4107 if (animationType == CANCEL_TWO_STAGE_WIDGET_DROP_ANIMATION) { 4108 mLauncher.getDragLayer().animateViewIntoPosition(dragView, finalPos, 0f, 0.1f, 0.1f, 4109 DragLayer.ANIMATION_END_DISAPPEAR, onCompleteRunnable, duration); 4110 } else { 4111 int endStyle; 4112 if (animationType == ANIMATE_INTO_POSITION_AND_REMAIN) { 4113 endStyle = DragLayer.ANIMATION_END_REMAIN_VISIBLE; 4114 } else { 4115 endStyle = DragLayer.ANIMATION_END_DISAPPEAR;; 4116 } 4117 4118 Runnable onComplete = new Runnable() { 4119 @Override 4120 public void run() { 4121 if (finalView != null) { 4122 finalView.setVisibility(VISIBLE); 4123 } 4124 if (onCompleteRunnable != null) { 4125 onCompleteRunnable.run(); 4126 } 4127 } 4128 }; 4129 dragLayer.animateViewIntoPosition(dragView, from.left, from.top, finalPos[0], 4130 finalPos[1], 1, 1, 1, scaleXY[0], scaleXY[1], onComplete, endStyle, 4131 duration, this); 4132 } 4133 } 4134 4135 public void setFinalTransitionTransform(CellLayout layout) { 4136 if (isSwitchingState()) { 4137 mCurrentScale = getScaleX(); 4138 setScaleX(mNewScale); 4139 setScaleY(mNewScale); 4140 } 4141 } 4142 public void resetTransitionTransform(CellLayout layout) { 4143 if (isSwitchingState()) { 4144 setScaleX(mCurrentScale); 4145 setScaleY(mCurrentScale); 4146 } 4147 } 4148 4149 /** 4150 * Return the current {@link CellLayout}, correctly picking the destination 4151 * screen while a scroll is in progress. 4152 */ 4153 public CellLayout getCurrentDropLayout() { 4154 return (CellLayout) getChildAt(getNextPage()); 4155 } 4156 4157 /** 4158 * Return the current CellInfo describing our current drag; this method exists 4159 * so that Launcher can sync this object with the correct info when the activity is created/ 4160 * destroyed 4161 * 4162 */ 4163 public CellLayout.CellInfo getDragInfo() { 4164 return mDragInfo; 4165 } 4166 4167 public int getCurrentPageOffsetFromCustomContent() { 4168 return getNextPage() - numCustomPages(); 4169 } 4170 4171 /** 4172 * Calculate the nearest cell where the given object would be dropped. 4173 * 4174 * pixelX and pixelY should be in the coordinate system of layout 4175 */ 4176 private int[] findNearestArea(int pixelX, int pixelY, 4177 int spanX, int spanY, CellLayout layout, int[] recycle) { 4178 return layout.findNearestArea( 4179 pixelX, pixelY, spanX, spanY, recycle); 4180 } 4181 4182 void setup(DragController dragController) { 4183 mSpringLoadedDragController = new SpringLoadedDragController(mLauncher); 4184 mDragController = dragController; 4185 4186 // hardware layers on children are enabled on startup, but should be disabled until 4187 // needed 4188 updateChildrenLayersEnabled(false); 4189 } 4190 4191 /** 4192 * Called at the end of a drag which originated on the workspace. 4193 */ 4194 public void onDropCompleted(final View target, final DragObject d, 4195 final boolean isFlingToDelete, final boolean success) { 4196 if (mDeferDropAfterUninstall) { 4197 mDeferredAction = new Runnable() { 4198 public void run() { 4199 onDropCompleted(target, d, isFlingToDelete, success); 4200 mDeferredAction = null; 4201 } 4202 }; 4203 return; 4204 } 4205 4206 boolean beingCalledAfterUninstall = mDeferredAction != null; 4207 4208 if (success && !(beingCalledAfterUninstall && !mUninstallSuccessful)) { 4209 if (target != this && mDragInfo != null) { 4210 removeWorkspaceItem(mDragInfo.cell); 4211 } 4212 } else if (mDragInfo != null) { 4213 CellLayout cellLayout; 4214 if (mLauncher.isHotseatLayout(target)) { 4215 cellLayout = mLauncher.getHotseat().getLayout(); 4216 } else { 4217 cellLayout = getScreenWithId(mDragInfo.screenId); 4218 } 4219 if (cellLayout == null && LauncherAppState.isDogfoodBuild()) { 4220 throw new RuntimeException("Invalid state: cellLayout == null in " 4221 + "Workspace#onDropCompleted. Please file a bug. "); 4222 } 4223 if (cellLayout != null) { 4224 cellLayout.onDropChild(mDragInfo.cell); 4225 } 4226 } 4227 if ((d.cancelled || (beingCalledAfterUninstall && !mUninstallSuccessful)) 4228 && mDragInfo.cell != null) { 4229 mDragInfo.cell.setVisibility(VISIBLE); 4230 } 4231 mDragOutline = null; 4232 mDragInfo = null; 4233 } 4234 4235 public void removeWorkspaceItem(View v) { 4236 CellLayout parentCell = getParentCellLayoutForView(v); 4237 if (parentCell != null) { 4238 parentCell.removeView(v); 4239 } else if (LauncherAppState.isDogfoodBuild()) { 4240 throw new NullPointerException("mDragInfo.cell has null parent"); 4241 } 4242 if (v instanceof DropTarget) { 4243 mDragController.removeDropTarget((DropTarget) v); 4244 } 4245 } 4246 4247 public void deferCompleteDropAfterUninstallActivity() { 4248 mDeferDropAfterUninstall = true; 4249 } 4250 4251 /// maybe move this into a smaller part 4252 public void onUninstallActivityReturned(boolean success) { 4253 mDeferDropAfterUninstall = false; 4254 mUninstallSuccessful = success; 4255 if (mDeferredAction != null) { 4256 mDeferredAction.run(); 4257 } 4258 } 4259 4260 void updateItemLocationsInDatabase(CellLayout cl) { 4261 int count = cl.getShortcutsAndWidgets().getChildCount(); 4262 4263 long screenId = getIdForScreen(cl); 4264 int container = Favorites.CONTAINER_DESKTOP; 4265 4266 if (mLauncher.isHotseatLayout(cl)) { 4267 screenId = -1; 4268 container = Favorites.CONTAINER_HOTSEAT; 4269 } 4270 4271 for (int i = 0; i < count; i++) { 4272 View v = cl.getShortcutsAndWidgets().getChildAt(i); 4273 ItemInfo info = (ItemInfo) v.getTag(); 4274 // Null check required as the AllApps button doesn't have an item info 4275 if (info != null && info.requiresDbUpdate) { 4276 info.requiresDbUpdate = false; 4277 LauncherModel.modifyItemInDatabase(mLauncher, info, container, screenId, info.cellX, 4278 info.cellY, info.spanX, info.spanY); 4279 } 4280 } 4281 } 4282 4283 void saveWorkspaceToDb() { 4284 saveWorkspaceScreenToDb((CellLayout) mLauncher.getHotseat().getLayout()); 4285 int count = getChildCount(); 4286 for (int i = 0; i < count; i++) { 4287 CellLayout cl = (CellLayout) getChildAt(i); 4288 saveWorkspaceScreenToDb(cl); 4289 } 4290 } 4291 4292 void saveWorkspaceScreenToDb(CellLayout cl) { 4293 int count = cl.getShortcutsAndWidgets().getChildCount(); 4294 4295 long screenId = getIdForScreen(cl); 4296 int container = Favorites.CONTAINER_DESKTOP; 4297 4298 Hotseat hotseat = mLauncher.getHotseat(); 4299 if (mLauncher.isHotseatLayout(cl)) { 4300 screenId = -1; 4301 container = Favorites.CONTAINER_HOTSEAT; 4302 } 4303 4304 for (int i = 0; i < count; i++) { 4305 View v = cl.getShortcutsAndWidgets().getChildAt(i); 4306 ItemInfo info = (ItemInfo) v.getTag(); 4307 // Null check required as the AllApps button doesn't have an item info 4308 if (info != null) { 4309 int cellX = info.cellX; 4310 int cellY = info.cellY; 4311 if (container == Favorites.CONTAINER_HOTSEAT) { 4312 cellX = hotseat.getCellXFromOrder((int) info.screenId); 4313 cellY = hotseat.getCellYFromOrder((int) info.screenId); 4314 } 4315 LauncherModel.addItemToDatabase(mLauncher, info, container, screenId, cellX, 4316 cellY, false); 4317 } 4318 if (v instanceof FolderIcon) { 4319 FolderIcon fi = (FolderIcon) v; 4320 fi.getFolder().addItemLocationsInDatabase(); 4321 } 4322 } 4323 } 4324 4325 @Override 4326 public float getIntrinsicIconScaleFactor() { 4327 return 1f; 4328 } 4329 4330 @Override 4331 public boolean supportsFlingToDelete() { 4332 return true; 4333 } 4334 4335 @Override 4336 public boolean supportsAppInfoDropTarget() { 4337 return false; 4338 } 4339 4340 @Override 4341 public boolean supportsDeleteDropTarget() { 4342 return true; 4343 } 4344 4345 @Override 4346 public void onFlingToDelete(DragObject d, int x, int y, PointF vec) { 4347 // Do nothing 4348 } 4349 4350 @Override 4351 public void onFlingToDeleteCompleted() { 4352 // Do nothing 4353 } 4354 4355 public boolean isDropEnabled() { 4356 return true; 4357 } 4358 4359 @Override 4360 protected void dispatchRestoreInstanceState(SparseArray<Parcelable> container) { 4361 // We don't dispatch restoreInstanceState to our children using this code path. 4362 // Some pages will be restored immediately as their items are bound immediately, and 4363 // others we will need to wait until after their items are bound. 4364 mSavedStates = container; 4365 } 4366 4367 public void restoreInstanceStateForChild(int child) { 4368 if (mSavedStates != null) { 4369 mRestoredPages.add(child); 4370 CellLayout cl = (CellLayout) getChildAt(child); 4371 if (cl != null) { 4372 cl.restoreInstanceState(mSavedStates); 4373 } 4374 } 4375 } 4376 4377 public void restoreInstanceStateForRemainingPages() { 4378 int count = getChildCount(); 4379 for (int i = 0; i < count; i++) { 4380 if (!mRestoredPages.contains(i)) { 4381 restoreInstanceStateForChild(i); 4382 } 4383 } 4384 mRestoredPages.clear(); 4385 mSavedStates = null; 4386 } 4387 4388 @Override 4389 public void scrollLeft() { 4390 if (!workspaceInModalState() && !mIsSwitchingState) { 4391 super.scrollLeft(); 4392 } 4393 Folder openFolder = getOpenFolder(); 4394 if (openFolder != null) { 4395 openFolder.completeDragExit(); 4396 } 4397 } 4398 4399 @Override 4400 public void scrollRight() { 4401 if (!workspaceInModalState() && !mIsSwitchingState) { 4402 super.scrollRight(); 4403 } 4404 Folder openFolder = getOpenFolder(); 4405 if (openFolder != null) { 4406 openFolder.completeDragExit(); 4407 } 4408 } 4409 4410 @Override 4411 public boolean onEnterScrollArea(int x, int y, int direction) { 4412 // Ignore the scroll area if we are dragging over the hot seat 4413 boolean isPortrait = !LauncherAppState.isScreenLandscape(getContext()); 4414 if (mLauncher.getHotseat() != null && isPortrait) { 4415 Rect r = new Rect(); 4416 mLauncher.getHotseat().getHitRect(r); 4417 if (r.contains(x, y)) { 4418 return false; 4419 } 4420 } 4421 4422 boolean result = false; 4423 if (!workspaceInModalState() && !mIsSwitchingState && getOpenFolder() == null) { 4424 mInScrollArea = true; 4425 4426 final int page = getNextPage() + 4427 (direction == DragController.SCROLL_LEFT ? -1 : 1); 4428 // We always want to exit the current layout to ensure parity of enter / exit 4429 setCurrentDropLayout(null); 4430 4431 if (0 <= page && page < getChildCount()) { 4432 // Ensure that we are not dragging over to the custom content screen 4433 if (getScreenIdForPageIndex(page) == CUSTOM_CONTENT_SCREEN_ID) { 4434 return false; 4435 } 4436 4437 CellLayout layout = (CellLayout) getChildAt(page); 4438 setCurrentDragOverlappingLayout(layout); 4439 4440 // Workspace is responsible for drawing the edge glow on adjacent pages, 4441 // so we need to redraw the workspace when this may have changed. 4442 invalidate(); 4443 result = true; 4444 } 4445 } 4446 return result; 4447 } 4448 4449 @Override 4450 public boolean onExitScrollArea() { 4451 boolean result = false; 4452 if (mInScrollArea) { 4453 invalidate(); 4454 CellLayout layout = getCurrentDropLayout(); 4455 setCurrentDropLayout(layout); 4456 setCurrentDragOverlappingLayout(layout); 4457 4458 result = true; 4459 mInScrollArea = false; 4460 } 4461 return result; 4462 } 4463 4464 private void onResetScrollArea() { 4465 setCurrentDragOverlappingLayout(null); 4466 mInScrollArea = false; 4467 } 4468 4469 /** 4470 * Returns a specific CellLayout 4471 */ 4472 CellLayout getParentCellLayoutForView(View v) { 4473 ArrayList<CellLayout> layouts = getWorkspaceAndHotseatCellLayouts(); 4474 for (CellLayout layout : layouts) { 4475 if (layout.getShortcutsAndWidgets().indexOfChild(v) > -1) { 4476 return layout; 4477 } 4478 } 4479 return null; 4480 } 4481 4482 /** 4483 * Returns a list of all the CellLayouts in the workspace. 4484 */ 4485 ArrayList<CellLayout> getWorkspaceAndHotseatCellLayouts() { 4486 ArrayList<CellLayout> layouts = new ArrayList<CellLayout>(); 4487 int screenCount = getChildCount(); 4488 for (int screen = 0; screen < screenCount; screen++) { 4489 layouts.add(((CellLayout) getChildAt(screen))); 4490 } 4491 if (mLauncher.getHotseat() != null) { 4492 layouts.add(mLauncher.getHotseat().getLayout()); 4493 } 4494 return layouts; 4495 } 4496 4497 /** 4498 * We should only use this to search for specific children. Do not use this method to modify 4499 * ShortcutsAndWidgetsContainer directly. Includes ShortcutAndWidgetContainers from 4500 * the hotseat and workspace pages 4501 */ 4502 ArrayList<ShortcutAndWidgetContainer> getAllShortcutAndWidgetContainers() { 4503 ArrayList<ShortcutAndWidgetContainer> childrenLayouts = 4504 new ArrayList<ShortcutAndWidgetContainer>(); 4505 int screenCount = getChildCount(); 4506 for (int screen = 0; screen < screenCount; screen++) { 4507 childrenLayouts.add(((CellLayout) getChildAt(screen)).getShortcutsAndWidgets()); 4508 } 4509 if (mLauncher.getHotseat() != null) { 4510 childrenLayouts.add(mLauncher.getHotseat().getLayout().getShortcutsAndWidgets()); 4511 } 4512 return childrenLayouts; 4513 } 4514 4515 public Folder getFolderForTag(final Object tag) { 4516 return (Folder) getFirstMatch(new ItemOperator() { 4517 4518 @Override 4519 public boolean evaluate(ItemInfo info, View v, View parent) { 4520 return (v instanceof Folder) && (((Folder) v).getInfo() == tag) 4521 && ((Folder) v).getInfo().opened; 4522 } 4523 }); 4524 } 4525 4526 public View getViewForTag(final Object tag) { 4527 return getFirstMatch(new ItemOperator() { 4528 4529 @Override 4530 public boolean evaluate(ItemInfo info, View v, View parent) { 4531 return info == tag; 4532 } 4533 }); 4534 } 4535 4536 public LauncherAppWidgetHostView getWidgetForAppWidgetId(final int appWidgetId) { 4537 return (LauncherAppWidgetHostView) getFirstMatch(new ItemOperator() { 4538 4539 @Override 4540 public boolean evaluate(ItemInfo info, View v, View parent) { 4541 return (info instanceof LauncherAppWidgetInfo) && 4542 ((LauncherAppWidgetInfo) info).appWidgetId == appWidgetId; 4543 } 4544 }); 4545 } 4546 4547 private View getFirstMatch(final ItemOperator operator) { 4548 final View[] value = new View[1]; 4549 mapOverItems(MAP_NO_RECURSE, new ItemOperator() { 4550 @Override 4551 public boolean evaluate(ItemInfo info, View v, View parent) { 4552 if (operator.evaluate(info, v, parent)) { 4553 value[0] = v; 4554 return true; 4555 } 4556 return false; 4557 } 4558 }); 4559 return value[0]; 4560 } 4561 4562 void clearDropTargets() { 4563 mapOverItems(MAP_NO_RECURSE, new ItemOperator() { 4564 @Override 4565 public boolean evaluate(ItemInfo info, View v, View parent) { 4566 if (v instanceof DropTarget) { 4567 mDragController.removeDropTarget((DropTarget) v); 4568 } 4569 // not done, process all the shortcuts 4570 return false; 4571 } 4572 }); 4573 } 4574 4575 public void disableShortcutsByPackageName(final ArrayList<String> packages, 4576 final UserHandleCompat user, final int reason) { 4577 final HashSet<String> packageNames = new HashSet<String>(); 4578 packageNames.addAll(packages); 4579 4580 mapOverItems(MAP_RECURSE, new ItemOperator() { 4581 @Override 4582 public boolean evaluate(ItemInfo info, View v, View parent) { 4583 if (info instanceof ShortcutInfo && v instanceof BubbleTextView) { 4584 ShortcutInfo shortcutInfo = (ShortcutInfo) info; 4585 ComponentName cn = shortcutInfo.getTargetComponent(); 4586 if (user.equals(shortcutInfo.user) && cn != null 4587 && packageNames.contains(cn.getPackageName())) { 4588 shortcutInfo.isDisabled |= reason; 4589 BubbleTextView shortcut = (BubbleTextView) v; 4590 shortcut.applyFromShortcutInfo(shortcutInfo, mIconCache, true, false); 4591 4592 if (parent != null) { 4593 parent.invalidate(); 4594 } 4595 } 4596 } 4597 // process all the shortcuts 4598 return false; 4599 } 4600 }); 4601 } 4602 4603 // Removes ALL items that match a given package name, this is usually called when a package 4604 // has been removed and we want to remove all components (widgets, shortcuts, apps) that 4605 // belong to that package. 4606 void removeItemsByPackageName(final ArrayList<String> packages, final UserHandleCompat user) { 4607 final HashSet<String> packageNames = new HashSet<String>(); 4608 packageNames.addAll(packages); 4609 4610 // Filter out all the ItemInfos that this is going to affect 4611 final HashSet<ItemInfo> infos = new HashSet<ItemInfo>(); 4612 final HashSet<ComponentName> cns = new HashSet<ComponentName>(); 4613 ArrayList<CellLayout> cellLayouts = getWorkspaceAndHotseatCellLayouts(); 4614 for (CellLayout layoutParent : cellLayouts) { 4615 ViewGroup layout = layoutParent.getShortcutsAndWidgets(); 4616 int childCount = layout.getChildCount(); 4617 for (int i = 0; i < childCount; ++i) { 4618 View view = layout.getChildAt(i); 4619 infos.add((ItemInfo) view.getTag()); 4620 } 4621 } 4622 LauncherModel.ItemInfoFilter filter = new LauncherModel.ItemInfoFilter() { 4623 @Override 4624 public boolean filterItem(ItemInfo parent, ItemInfo info, 4625 ComponentName cn) { 4626 if (packageNames.contains(cn.getPackageName()) 4627 && info.user.equals(user)) { 4628 cns.add(cn); 4629 return true; 4630 } 4631 return false; 4632 } 4633 }; 4634 LauncherModel.filterItemInfos(infos, filter); 4635 4636 // Remove the affected components 4637 removeItemsByComponentName(cns, user); 4638 } 4639 4640 /** 4641 * Removes items that match the item info specified. When applications are removed 4642 * as a part of an update, this is called to ensure that other widgets and application 4643 * shortcuts are not removed. 4644 */ 4645 void removeItemsByComponentName(final HashSet<ComponentName> componentNames, 4646 final UserHandleCompat user) { 4647 ArrayList<CellLayout> cellLayouts = getWorkspaceAndHotseatCellLayouts(); 4648 for (final CellLayout layoutParent: cellLayouts) { 4649 final ViewGroup layout = layoutParent.getShortcutsAndWidgets(); 4650 4651 final HashMap<ItemInfo, View> children = new HashMap<ItemInfo, View>(); 4652 for (int j = 0; j < layout.getChildCount(); j++) { 4653 final View view = layout.getChildAt(j); 4654 children.put((ItemInfo) view.getTag(), view); 4655 } 4656 4657 final ArrayList<View> childrenToRemove = new ArrayList<View>(); 4658 final HashMap<FolderInfo, ArrayList<ShortcutInfo>> folderAppsToRemove = 4659 new HashMap<FolderInfo, ArrayList<ShortcutInfo>>(); 4660 LauncherModel.ItemInfoFilter filter = new LauncherModel.ItemInfoFilter() { 4661 @Override 4662 public boolean filterItem(ItemInfo parent, ItemInfo info, 4663 ComponentName cn) { 4664 if (parent instanceof FolderInfo) { 4665 if (componentNames.contains(cn) && info.user.equals(user)) { 4666 FolderInfo folder = (FolderInfo) parent; 4667 ArrayList<ShortcutInfo> appsToRemove; 4668 if (folderAppsToRemove.containsKey(folder)) { 4669 appsToRemove = folderAppsToRemove.get(folder); 4670 } else { 4671 appsToRemove = new ArrayList<ShortcutInfo>(); 4672 folderAppsToRemove.put(folder, appsToRemove); 4673 } 4674 appsToRemove.add((ShortcutInfo) info); 4675 return true; 4676 } 4677 } else { 4678 if (componentNames.contains(cn) && info.user.equals(user)) { 4679 childrenToRemove.add(children.get(info)); 4680 return true; 4681 } 4682 } 4683 return false; 4684 } 4685 }; 4686 LauncherModel.filterItemInfos(children.keySet(), filter); 4687 4688 // Remove all the apps from their folders 4689 for (FolderInfo folder : folderAppsToRemove.keySet()) { 4690 ArrayList<ShortcutInfo> appsToRemove = folderAppsToRemove.get(folder); 4691 for (ShortcutInfo info : appsToRemove) { 4692 folder.remove(info); 4693 } 4694 } 4695 4696 // Remove all the other children 4697 for (View child : childrenToRemove) { 4698 // Note: We can not remove the view directly from CellLayoutChildren as this 4699 // does not re-mark the spaces as unoccupied. 4700 layoutParent.removeViewInLayout(child); 4701 if (child instanceof DropTarget) { 4702 mDragController.removeDropTarget((DropTarget) child); 4703 } 4704 } 4705 4706 if (childrenToRemove.size() > 0) { 4707 layout.requestLayout(); 4708 layout.invalidate(); 4709 } 4710 } 4711 4712 // Strip all the empty screens 4713 stripEmptyScreens(); 4714 } 4715 4716 interface ItemOperator { 4717 /** 4718 * Process the next itemInfo, possibly with side-effect on {@link ItemOperator#value}. 4719 * 4720 * @param info info for the shortcut 4721 * @param view view for the shortcut 4722 * @param parent containing folder, or null 4723 * @return true if done, false to continue the map 4724 */ 4725 public boolean evaluate(ItemInfo info, View view, View parent); 4726 } 4727 4728 /** 4729 * Map the operator over the shortcuts and widgets, return the first-non-null value. 4730 * 4731 * @param recurse true: iterate over folder children. false: op get the folders themselves. 4732 * @param op the operator to map over the shortcuts 4733 */ 4734 void mapOverItems(boolean recurse, ItemOperator op) { 4735 ArrayList<ShortcutAndWidgetContainer> containers = getAllShortcutAndWidgetContainers(); 4736 final int containerCount = containers.size(); 4737 for (int containerIdx = 0; containerIdx < containerCount; containerIdx++) { 4738 ShortcutAndWidgetContainer container = containers.get(containerIdx); 4739 // map over all the shortcuts on the workspace 4740 final int itemCount = container.getChildCount(); 4741 for (int itemIdx = 0; itemIdx < itemCount; itemIdx++) { 4742 View item = container.getChildAt(itemIdx); 4743 ItemInfo info = (ItemInfo) item.getTag(); 4744 if (recurse && info instanceof FolderInfo && item instanceof FolderIcon) { 4745 FolderIcon folder = (FolderIcon) item; 4746 ArrayList<View> folderChildren = folder.getFolder().getItemsInReadingOrder(); 4747 // map over all the children in the folder 4748 final int childCount = folderChildren.size(); 4749 for (int childIdx = 0; childIdx < childCount; childIdx++) { 4750 View child = folderChildren.get(childIdx); 4751 info = (ItemInfo) child.getTag(); 4752 if (op.evaluate(info, child, folder)) { 4753 return; 4754 } 4755 } 4756 } else { 4757 if (op.evaluate(info, item, null)) { 4758 return; 4759 } 4760 } 4761 } 4762 } 4763 } 4764 4765 void updateShortcuts(ArrayList<ShortcutInfo> shortcuts) { 4766 final HashSet<ShortcutInfo> updates = new HashSet<ShortcutInfo>(shortcuts); 4767 mapOverItems(MAP_RECURSE, new ItemOperator() { 4768 @Override 4769 public boolean evaluate(ItemInfo info, View v, View parent) { 4770 if (info instanceof ShortcutInfo && v instanceof BubbleTextView && 4771 updates.contains(info)) { 4772 ShortcutInfo si = (ShortcutInfo) info; 4773 BubbleTextView shortcut = (BubbleTextView) v; 4774 boolean oldPromiseState = shortcut.getCompoundDrawables()[1] 4775 instanceof PreloadIconDrawable; 4776 shortcut.applyFromShortcutInfo(si, mIconCache, true, 4777 si.isPromise() != oldPromiseState); 4778 4779 if (parent != null) { 4780 parent.invalidate(); 4781 } 4782 } 4783 // process all the shortcuts 4784 return false; 4785 } 4786 }); 4787 } 4788 4789 public void removeAbandonedPromise(String packageName, UserHandleCompat user) { 4790 ArrayList<String> packages = new ArrayList<String>(1); 4791 packages.add(packageName); 4792 LauncherModel.deletePackageFromDatabase(mLauncher, packageName, user); 4793 removeItemsByPackageName(packages, user); 4794 } 4795 4796 public void updatePackageBadge(final String packageName, final UserHandleCompat user) { 4797 mapOverItems(MAP_RECURSE, new ItemOperator() { 4798 @Override 4799 public boolean evaluate(ItemInfo info, View v, View parent) { 4800 if (info instanceof ShortcutInfo && v instanceof BubbleTextView) { 4801 ShortcutInfo shortcutInfo = (ShortcutInfo) info; 4802 ComponentName cn = shortcutInfo.getTargetComponent(); 4803 if (user.equals(shortcutInfo.user) && cn != null 4804 && shortcutInfo.isPromise() 4805 && packageName.equals(cn.getPackageName())) { 4806 if (shortcutInfo.hasStatusFlag(ShortcutInfo.FLAG_AUTOINTALL_ICON)) { 4807 // For auto install apps update the icon as well as label. 4808 mIconCache.getTitleAndIcon(shortcutInfo, 4809 shortcutInfo.promisedIntent, user, true); 4810 } else { 4811 // Only update the icon for restored apps. 4812 shortcutInfo.updateIcon(mIconCache); 4813 } 4814 BubbleTextView shortcut = (BubbleTextView) v; 4815 shortcut.applyFromShortcutInfo(shortcutInfo, mIconCache, true, false); 4816 4817 if (parent != null) { 4818 parent.invalidate(); 4819 } 4820 } 4821 } 4822 // process all the shortcuts 4823 return false; 4824 } 4825 }); 4826 } 4827 4828 public void updatePackageState(ArrayList<PackageInstallInfo> installInfos) { 4829 for (final PackageInstallInfo installInfo : installInfos) { 4830 if (installInfo.state == PackageInstallerCompat.STATUS_INSTALLED) { 4831 continue; 4832 } 4833 4834 mapOverItems(MAP_RECURSE, new ItemOperator() { 4835 @Override 4836 public boolean evaluate(ItemInfo info, View v, View parent) { 4837 if (info instanceof ShortcutInfo && v instanceof BubbleTextView) { 4838 ShortcutInfo si = (ShortcutInfo) info; 4839 ComponentName cn = si.getTargetComponent(); 4840 if (si.isPromise() && (cn != null) 4841 && installInfo.packageName.equals(cn.getPackageName())) { 4842 si.setInstallProgress(installInfo.progress); 4843 if (installInfo.state == PackageInstallerCompat.STATUS_FAILED) { 4844 // Mark this info as broken. 4845 si.status &= ~ShortcutInfo.FLAG_INSTALL_SESSION_ACTIVE; 4846 } 4847 ((BubbleTextView)v).applyState(false); 4848 } 4849 } else if (v instanceof PendingAppWidgetHostView 4850 && info instanceof LauncherAppWidgetInfo 4851 && ((LauncherAppWidgetInfo) info).providerName.getPackageName() 4852 .equals(installInfo.packageName)) { 4853 ((LauncherAppWidgetInfo) info).installProgress = installInfo.progress; 4854 ((PendingAppWidgetHostView) v).applyState(); 4855 } 4856 4857 // process all the shortcuts 4858 return false; 4859 } 4860 }); 4861 } 4862 } 4863 4864 void widgetsRestored(ArrayList<LauncherAppWidgetInfo> changedInfo) { 4865 if (!changedInfo.isEmpty()) { 4866 DeferredWidgetRefresh widgetRefresh = new DeferredWidgetRefresh(changedInfo, 4867 mLauncher.getAppWidgetHost()); 4868 if (LauncherModel.getProviderInfo(getContext(), 4869 changedInfo.get(0).providerName) != null) { 4870 // Re-inflate the widgets which have changed status 4871 widgetRefresh.run(); 4872 } else { 4873 // widgetRefresh will automatically run when the packages are updated. 4874 // For now just update the progress bars 4875 for (LauncherAppWidgetInfo info : changedInfo) { 4876 if (info.hostView instanceof PendingAppWidgetHostView) { 4877 info.installProgress = 100; 4878 ((PendingAppWidgetHostView) info.hostView).applyState(); 4879 } 4880 } 4881 } 4882 } 4883 } 4884 4885 private void moveToScreen(int page, boolean animate) { 4886 if (!workspaceInModalState()) { 4887 if (animate) { 4888 snapToPage(page); 4889 } else { 4890 setCurrentPage(page); 4891 } 4892 } 4893 View child = getChildAt(page); 4894 if (child != null) { 4895 child.requestFocus(); 4896 } 4897 } 4898 4899 void moveToDefaultScreen(boolean animate) { 4900 moveToScreen(mDefaultPage, animate); 4901 } 4902 4903 void moveToCustomContentScreen(boolean animate) { 4904 if (hasCustomContent()) { 4905 int ccIndex = getPageIndexForScreenId(CUSTOM_CONTENT_SCREEN_ID); 4906 if (animate) { 4907 snapToPage(ccIndex); 4908 } else { 4909 setCurrentPage(ccIndex); 4910 } 4911 View child = getChildAt(ccIndex); 4912 if (child != null) { 4913 child.requestFocus(); 4914 } 4915 } 4916 exitWidgetResizeMode(); 4917 } 4918 4919 @Override 4920 protected PageIndicator.PageMarkerResources getPageIndicatorMarker(int pageIndex) { 4921 long screenId = getScreenIdForPageIndex(pageIndex); 4922 if (screenId == EXTRA_EMPTY_SCREEN_ID) { 4923 int count = mScreenOrder.size() - numCustomPages(); 4924 if (count > 1) { 4925 return new PageIndicator.PageMarkerResources(R.drawable.ic_pageindicator_current, 4926 R.drawable.ic_pageindicator_add); 4927 } 4928 } 4929 4930 return super.getPageIndicatorMarker(pageIndex); 4931 } 4932 4933 @Override 4934 public void syncPages() { 4935 } 4936 4937 @Override 4938 public void syncPageItems(int page, boolean immediate) { 4939 } 4940 4941 protected String getPageIndicatorDescription() { 4942 String settings = getResources().getString(R.string.settings_button_text); 4943 return getCurrentPageDescription() + ", " + settings; 4944 } 4945 4946 protected String getCurrentPageDescription() { 4947 int page = (mNextPage != INVALID_PAGE) ? mNextPage : mCurrentPage; 4948 int delta = numCustomPages(); 4949 if (hasCustomContent() && getNextPage() == 0) { 4950 return mCustomContentDescription; 4951 } 4952 return String.format(getContext().getString(R.string.workspace_scroll_format), 4953 page + 1 - delta, getChildCount() - delta); 4954 } 4955 4956 public void getLocationInDragLayer(int[] loc) { 4957 mLauncher.getDragLayer().getLocationInDragLayer(this, loc); 4958 } 4959 4960 /** 4961 * Used as a workaround to ensure that the AppWidgetService receives the 4962 * PACKAGE_ADDED broadcast before updating widgets. 4963 */ 4964 private class DeferredWidgetRefresh implements Runnable { 4965 private final ArrayList<LauncherAppWidgetInfo> mInfos; 4966 private final LauncherAppWidgetHost mHost; 4967 private final Handler mHandler; 4968 4969 private boolean mRefreshPending; 4970 4971 public DeferredWidgetRefresh(ArrayList<LauncherAppWidgetInfo> infos, 4972 LauncherAppWidgetHost host) { 4973 mInfos = infos; 4974 mHost = host; 4975 mHandler = new Handler(); 4976 mRefreshPending = true; 4977 4978 mHost.addProviderChangeListener(this); 4979 // Force refresh after 10 seconds, if we don't get the provider changed event. 4980 // This could happen when the provider is no longer available in the app. 4981 mHandler.postDelayed(this, 10000); 4982 } 4983 4984 @Override 4985 public void run() { 4986 mHost.removeProviderChangeListener(this); 4987 mHandler.removeCallbacks(this); 4988 4989 if (!mRefreshPending) { 4990 return; 4991 } 4992 4993 mRefreshPending = false; 4994 4995 for (LauncherAppWidgetInfo info : mInfos) { 4996 if (info.hostView instanceof PendingAppWidgetHostView) { 4997 PendingAppWidgetHostView view = (PendingAppWidgetHostView) info.hostView; 4998 mLauncher.removeAppWidget(info); 4999 5000 CellLayout cl = (CellLayout) view.getParent().getParent(); 5001 // Remove the current widget 5002 cl.removeView(view); 5003 mLauncher.bindAppWidget(info); 5004 } 5005 } 5006 } 5007 } 5008} 5009