Workspace.java revision ff572277112ec3d6a6a8c1be274d6fa1019e3648
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.net.Uri; 47import android.os.AsyncTask; 48import android.os.IBinder; 49import android.os.Parcelable; 50import android.support.v4.view.ViewCompat; 51import android.util.AttributeSet; 52import android.util.Log; 53import android.util.SparseArray; 54import android.view.Choreographer; 55import android.view.Display; 56import android.view.MotionEvent; 57import android.view.View; 58import android.view.ViewGroup; 59import android.view.accessibility.AccessibilityManager; 60import android.view.animation.DecelerateInterpolator; 61import android.view.animation.Interpolator; 62import android.widget.TextView; 63 64import com.android.launcher3.FolderIcon.FolderRingAnimator; 65import com.android.launcher3.Launcher.CustomContentCallbacks; 66import com.android.launcher3.LauncherSettings.Favorites; 67import com.android.launcher3.compat.PackageInstallerCompat.PackageInstallInfo; 68import com.android.launcher3.compat.UserHandleCompat; 69 70import java.util.ArrayList; 71import java.util.HashMap; 72import java.util.HashSet; 73import java.util.Iterator; 74import java.util.Set; 75import java.util.concurrent.atomic.AtomicBoolean; 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 // Y rotation to apply to the workspace screens 89 private static final float WORKSPACE_OVERSCROLL_ROTATION = 24f; 90 91 private static final int CHILDREN_OUTLINE_FADE_OUT_DELAY = 0; 92 private static final int CHILDREN_OUTLINE_FADE_OUT_DURATION = 375; 93 private static final int CHILDREN_OUTLINE_FADE_IN_DURATION = 100; 94 95 protected static final int SNAP_OFF_EMPTY_SCREEN_DURATION = 400; 96 protected static final int FADE_EMPTY_SCREEN_DURATION = 150; 97 98 private static final int BACKGROUND_FADE_OUT_DURATION = 350; 99 private static final int ADJACENT_SCREEN_DROP_DURATION = 300; 100 private static final int FLING_THRESHOLD_VELOCITY = 500; 101 102 private static final float ALPHA_CUTOFF_THRESHOLD = 0.01f; 103 104 static final boolean MAP_NO_RECURSE = false; 105 static final boolean MAP_RECURSE = true; 106 107 // These animators are used to fade the children's outlines 108 private ObjectAnimator mChildrenOutlineFadeInAnimation; 109 private ObjectAnimator mChildrenOutlineFadeOutAnimation; 110 private float mChildrenOutlineAlpha = 0; 111 112 // These properties refer to the background protection gradient used for AllApps and Customize 113 private ValueAnimator mBackgroundFadeInAnimation; 114 private ValueAnimator mBackgroundFadeOutAnimation; 115 116 private static final long CUSTOM_CONTENT_GESTURE_DELAY = 200; 117 private long mTouchDownTime = -1; 118 private long mCustomContentShowTime = -1; 119 120 private LayoutTransition mLayoutTransition; 121 private final WallpaperManager mWallpaperManager; 122 private IBinder mWindowToken; 123 124 private int mOriginalDefaultPage; 125 private int mDefaultPage; 126 127 private ShortcutAndWidgetContainer mDragSourceInternal; 128 private static boolean sAccessibilityEnabled; 129 130 // The screen id used for the empty screen always present to the right. 131 final static long EXTRA_EMPTY_SCREEN_ID = -201; 132 private final static long CUSTOM_CONTENT_SCREEN_ID = -301; 133 134 private HashMap<Long, CellLayout> mWorkspaceScreens = new HashMap<Long, CellLayout>(); 135 private ArrayList<Long> mScreenOrder = new ArrayList<Long>(); 136 137 private Runnable mRemoveEmptyScreenRunnable; 138 private boolean mDeferRemoveExtraEmptyScreen = false; 139 140 /** 141 * CellInfo for the cell that is currently being dragged 142 */ 143 private CellLayout.CellInfo mDragInfo; 144 145 /** 146 * Target drop area calculated during last acceptDrop call. 147 */ 148 private int[] mTargetCell = new int[2]; 149 private int mDragOverX = -1; 150 private int mDragOverY = -1; 151 152 static Rect mLandscapeCellLayoutMetrics = null; 153 static Rect mPortraitCellLayoutMetrics = null; 154 155 CustomContentCallbacks mCustomContentCallbacks; 156 boolean mCustomContentShowing; 157 private float mLastCustomContentScrollProgress = -1f; 158 private String mCustomContentDescription = ""; 159 160 /** 161 * The CellLayout that is currently being dragged over 162 */ 163 private CellLayout mDragTargetLayout = null; 164 /** 165 * The CellLayout that we will show as glowing 166 */ 167 private CellLayout mDragOverlappingLayout = null; 168 169 /** 170 * The CellLayout which will be dropped to 171 */ 172 private CellLayout mDropToLayout = null; 173 174 private Launcher mLauncher; 175 private IconCache mIconCache; 176 private DragController mDragController; 177 178 // These are temporary variables to prevent having to allocate a new object just to 179 // return an (x, y) value from helper functions. Do NOT use them to maintain other state. 180 private int[] mTempCell = new int[2]; 181 private int[] mTempPt = new int[2]; 182 private int[] mTempEstimate = new int[2]; 183 private float[] mDragViewVisualCenter = new float[2]; 184 private float[] mTempCellLayoutCenterCoordinates = new float[2]; 185 private Matrix mTempInverseMatrix = new Matrix(); 186 187 private SpringLoadedDragController mSpringLoadedDragController; 188 private float mSpringLoadedShrinkFactor; 189 private float mOverviewModeShrinkFactor; 190 191 // State variable that indicates whether the pages are small (ie when you're 192 // in all apps or customize mode) 193 194 enum State { NORMAL, NORMAL_HIDDEN, SPRING_LOADED, OVERVIEW, OVERVIEW_HIDDEN}; 195 private State mState = State.NORMAL; 196 private boolean mIsSwitchingState = false; 197 198 boolean mAnimatingViewIntoPlace = false; 199 boolean mIsDragOccuring = false; 200 boolean mChildrenLayersEnabled = true; 201 202 private boolean mStripScreensOnPageStopMoving = false; 203 204 /** Is the user is dragging an item near the edge of a page? */ 205 private boolean mInScrollArea = false; 206 207 private HolographicOutlineHelper mOutlineHelper; 208 private Bitmap mDragOutline = null; 209 private final Rect mTempRect = new Rect(); 210 private final int[] mTempXY = new int[2]; 211 private int[] mTempVisiblePagesRange = new int[2]; 212 private boolean mOverscrollTransformsSet; 213 private float mLastOverscrollPivotX; 214 public static final int DRAG_BITMAP_PADDING = 2; 215 private boolean mWorkspaceFadeInAdjacentScreens; 216 217 WallpaperOffsetInterpolator mWallpaperOffset; 218 private boolean mWallpaperIsLiveWallpaper; 219 private int mNumPagesForWallpaperParallax; 220 private float mLastSetWallpaperOffsetSteps = 0; 221 222 private Runnable mDelayedResizeRunnable; 223 private Runnable mDelayedSnapToPageRunnable; 224 private Point mDisplaySize = new Point(); 225 private int mCameraDistance; 226 227 // Variables relating to the creation of user folders by hovering shortcuts over shortcuts 228 private static final int FOLDER_CREATION_TIMEOUT = 0; 229 public static final int REORDER_TIMEOUT = 350; 230 private final Alarm mFolderCreationAlarm = new Alarm(); 231 private final Alarm mReorderAlarm = new Alarm(); 232 private FolderRingAnimator mDragFolderRingAnimator = null; 233 private FolderIcon mDragOverFolderIcon = null; 234 private boolean mCreateUserFolderOnDrop = false; 235 private boolean mAddToExistingFolderOnDrop = false; 236 private DropTarget.DragEnforcer mDragEnforcer; 237 private float mMaxDistanceForFolderCreation; 238 239 // Variables relating to touch disambiguation (scrolling workspace vs. scrolling a widget) 240 private float mXDown; 241 private float mYDown; 242 final static float START_DAMPING_TOUCH_SLOP_ANGLE = (float) Math.PI / 6; 243 final static float MAX_SWIPE_ANGLE = (float) Math.PI / 3; 244 final static float TOUCH_SLOP_DAMPING_FACTOR = 4; 245 246 // Relating to the animation of items being dropped externally 247 public static final int ANIMATE_INTO_POSITION_AND_DISAPPEAR = 0; 248 public static final int ANIMATE_INTO_POSITION_AND_REMAIN = 1; 249 public static final int ANIMATE_INTO_POSITION_AND_RESIZE = 2; 250 public static final int COMPLETE_TWO_STAGE_WIDGET_DROP_ANIMATION = 3; 251 public static final int CANCEL_TWO_STAGE_WIDGET_DROP_ANIMATION = 4; 252 253 // Related to dragging, folder creation and reordering 254 private static final int DRAG_MODE_NONE = 0; 255 private static final int DRAG_MODE_CREATE_FOLDER = 1; 256 private static final int DRAG_MODE_ADD_TO_FOLDER = 2; 257 private static final int DRAG_MODE_REORDER = 3; 258 private int mDragMode = DRAG_MODE_NONE; 259 private int mLastReorderX = -1; 260 private int mLastReorderY = -1; 261 262 private SparseArray<Parcelable> mSavedStates; 263 private final ArrayList<Integer> mRestoredPages = new ArrayList<Integer>(); 264 265 // These variables are used for storing the initial and final values during workspace animations 266 private int mSavedScrollX; 267 private float mSavedRotationY; 268 private float mSavedTranslationX; 269 270 private float mCurrentScale; 271 private float mNewScale; 272 private float[] mOldBackgroundAlphas; 273 private float[] mOldAlphas; 274 private float[] mNewBackgroundAlphas; 275 private float[] mNewAlphas; 276 private int mLastChildCount = -1; 277 private float mTransitionProgress; 278 279 private Runnable mDeferredAction; 280 private boolean mDeferDropAfterUninstall; 281 private boolean mUninstallSuccessful; 282 283 private final Runnable mBindPages = new Runnable() { 284 @Override 285 public void run() { 286 mLauncher.getModel().bindRemainingSynchronousPages(); 287 } 288 }; 289 290 /** 291 * Used to inflate the Workspace from XML. 292 * 293 * @param context The application's context. 294 * @param attrs The attributes set containing the Workspace's customization values. 295 */ 296 public Workspace(Context context, AttributeSet attrs) { 297 this(context, attrs, 0); 298 } 299 300 /** 301 * Used to inflate the Workspace from XML. 302 * 303 * @param context The application's context. 304 * @param attrs The attributes set containing the Workspace's customization values. 305 * @param defStyle Unused. 306 */ 307 public Workspace(Context context, AttributeSet attrs, int defStyle) { 308 super(context, attrs, defStyle); 309 mContentIsRefreshable = false; 310 311 mOutlineHelper = HolographicOutlineHelper.obtain(context); 312 313 mDragEnforcer = new DropTarget.DragEnforcer(context); 314 // With workspace, data is available straight from the get-go 315 setDataIsReady(); 316 317 mLauncher = (Launcher) context; 318 final Resources res = getResources(); 319 mWorkspaceFadeInAdjacentScreens = LauncherAppState.getInstance().getDynamicGrid(). 320 getDeviceProfile().shouldFadeAdjacentWorkspaceScreens(); 321 mFadeInAdjacentScreens = false; 322 mWallpaperManager = WallpaperManager.getInstance(context); 323 324 LauncherAppState app = LauncherAppState.getInstance(); 325 DeviceProfile grid = app.getDynamicGrid().getDeviceProfile(); 326 TypedArray a = context.obtainStyledAttributes(attrs, 327 R.styleable.Workspace, defStyle, 0); 328 mSpringLoadedShrinkFactor = 329 res.getInteger(R.integer.config_workspaceSpringLoadShrinkPercentage) / 100.0f; 330 mOverviewModeShrinkFactor = grid.getOverviewModeScale(); 331 mCameraDistance = res.getInteger(R.integer.config_cameraDistance); 332 mOriginalDefaultPage = mDefaultPage = a.getInt(R.styleable.Workspace_defaultScreen, 1); 333 a.recycle(); 334 335 setOnHierarchyChangeListener(this); 336 setHapticFeedbackEnabled(false); 337 338 initWorkspace(); 339 340 // Disable multitouch across the workspace/all apps/customize tray 341 setMotionEventSplittingEnabled(true); 342 setImportantForAccessibility(View.IMPORTANT_FOR_ACCESSIBILITY_YES); 343 } 344 345 @Override 346 public void setInsets(Rect insets) { 347 mInsets.set(insets); 348 349 CellLayout customScreen = getScreenWithId(CUSTOM_CONTENT_SCREEN_ID); 350 if (customScreen != null) { 351 View customContent = customScreen.getShortcutsAndWidgets().getChildAt(0); 352 if (customContent instanceof Insettable) { 353 ((Insettable) customContent).setInsets(mInsets); 354 } 355 } 356 } 357 358 // estimate the size of a widget with spans hSpan, vSpan. return MAX_VALUE for each 359 // dimension if unsuccessful 360 public int[] estimateItemSize(int hSpan, int vSpan, 361 ItemInfo itemInfo, boolean springLoaded) { 362 int[] size = new int[2]; 363 if (getChildCount() > 0) { 364 // Use the first non-custom page to estimate the child position 365 CellLayout cl = (CellLayout) getChildAt(numCustomPages()); 366 Rect r = estimateItemPosition(cl, itemInfo, 0, 0, hSpan, vSpan); 367 size[0] = r.width(); 368 size[1] = r.height(); 369 if (springLoaded) { 370 size[0] *= mSpringLoadedShrinkFactor; 371 size[1] *= mSpringLoadedShrinkFactor; 372 } 373 return size; 374 } else { 375 size[0] = Integer.MAX_VALUE; 376 size[1] = Integer.MAX_VALUE; 377 return size; 378 } 379 } 380 381 public Rect estimateItemPosition(CellLayout cl, ItemInfo pendingInfo, 382 int hCell, int vCell, int hSpan, int vSpan) { 383 Rect r = new Rect(); 384 cl.cellToRect(hCell, vCell, hSpan, vSpan, r); 385 return r; 386 } 387 388 public void onDragStart(final DragSource source, Object info, int dragAction) { 389 mIsDragOccuring = true; 390 updateChildrenLayersEnabled(false); 391 mLauncher.lockScreenOrientation(); 392 mLauncher.onInteractionBegin(); 393 setChildrenBackgroundAlphaMultipliers(1f); 394 // Prevent any Un/InstallShortcutReceivers from updating the db while we are dragging 395 InstallShortcutReceiver.enableInstallQueue(); 396 UninstallShortcutReceiver.enableUninstallQueue(); 397 post(new Runnable() { 398 @Override 399 public void run() { 400 if (mIsDragOccuring) { 401 mDeferRemoveExtraEmptyScreen = false; 402 addExtraEmptyScreenOnDrag(); 403 } 404 } 405 }); 406 } 407 408 409 public void deferRemoveExtraEmptyScreen() { 410 mDeferRemoveExtraEmptyScreen = true; 411 } 412 413 public void onDragEnd() { 414 if (!mDeferRemoveExtraEmptyScreen) { 415 removeExtraEmptyScreen(true, mDragSourceInternal != null); 416 } 417 418 mIsDragOccuring = false; 419 updateChildrenLayersEnabled(false); 420 mLauncher.unlockScreenOrientation(false); 421 422 // Re-enable any Un/InstallShortcutReceiver and now process any queued items 423 InstallShortcutReceiver.disableAndFlushInstallQueue(getContext()); 424 UninstallShortcutReceiver.disableAndFlushUninstallQueue(getContext()); 425 426 mDragSourceInternal = null; 427 mLauncher.onInteractionEnd(); 428 } 429 430 /** 431 * Initializes various states for this workspace. 432 */ 433 protected void initWorkspace() { 434 Context context = getContext(); 435 mCurrentPage = mDefaultPage; 436 Launcher.setScreen(mCurrentPage); 437 LauncherAppState app = LauncherAppState.getInstance(); 438 DeviceProfile grid = app.getDynamicGrid().getDeviceProfile(); 439 mIconCache = app.getIconCache(); 440 setWillNotDraw(false); 441 setClipChildren(false); 442 setClipToPadding(false); 443 setChildrenDrawnWithCacheEnabled(true); 444 445 setMinScale(mOverviewModeShrinkFactor); 446 setupLayoutTransition(); 447 448 mWallpaperOffset = new WallpaperOffsetInterpolator(); 449 Display display = mLauncher.getWindowManager().getDefaultDisplay(); 450 display.getSize(mDisplaySize); 451 452 mMaxDistanceForFolderCreation = (0.55f * grid.iconSizePx); 453 mFlingThresholdVelocity = (int) (FLING_THRESHOLD_VELOCITY * mDensity); 454 455 // Set the wallpaper dimensions when Launcher starts up 456 setWallpaperDimension(); 457 } 458 459 private void setupLayoutTransition() { 460 // We want to show layout transitions when pages are deleted, to close the gap. 461 mLayoutTransition = new LayoutTransition(); 462 mLayoutTransition.enableTransitionType(LayoutTransition.DISAPPEARING); 463 mLayoutTransition.enableTransitionType(LayoutTransition.CHANGE_DISAPPEARING); 464 mLayoutTransition.disableTransitionType(LayoutTransition.APPEARING); 465 mLayoutTransition.disableTransitionType(LayoutTransition.CHANGE_APPEARING); 466 setLayoutTransition(mLayoutTransition); 467 } 468 469 void enableLayoutTransitions() { 470 setLayoutTransition(mLayoutTransition); 471 } 472 void disableLayoutTransitions() { 473 setLayoutTransition(null); 474 } 475 476 @Override 477 protected int getScrollMode() { 478 return SmoothPagedView.X_LARGE_MODE; 479 } 480 481 @Override 482 public void onChildViewAdded(View parent, View child) { 483 if (!(child instanceof CellLayout)) { 484 throw new IllegalArgumentException("A Workspace can only have CellLayout children."); 485 } 486 CellLayout cl = ((CellLayout) child); 487 cl.setOnInterceptTouchListener(this); 488 cl.setClickable(true); 489 cl.setImportantForAccessibility(ViewCompat.IMPORTANT_FOR_ACCESSIBILITY_NO); 490 super.onChildViewAdded(parent, child); 491 } 492 493 protected boolean shouldDrawChild(View child) { 494 final CellLayout cl = (CellLayout) child; 495 return super.shouldDrawChild(child) && 496 (mIsSwitchingState || 497 cl.getShortcutsAndWidgets().getAlpha() > 0 || 498 cl.getBackgroundAlpha() > 0); 499 } 500 501 /** 502 * @return The open folder on the current screen, or null if there is none 503 */ 504 Folder getOpenFolder() { 505 DragLayer dragLayer = mLauncher.getDragLayer(); 506 int count = dragLayer.getChildCount(); 507 for (int i = 0; i < count; i++) { 508 View child = dragLayer.getChildAt(i); 509 if (child instanceof Folder) { 510 Folder folder = (Folder) child; 511 if (folder.getInfo().opened) 512 return folder; 513 } 514 } 515 return null; 516 } 517 518 boolean isTouchActive() { 519 return mTouchState != TOUCH_STATE_REST; 520 } 521 522 public void removeAllWorkspaceScreens() { 523 // Disable all layout transitions before removing all pages to ensure that we don't get the 524 // transition animations competing with us changing the scroll when we add pages or the 525 // custom content screen 526 disableLayoutTransitions(); 527 528 // Since we increment the current page when we call addCustomContentPage via bindScreens 529 // (and other places), we need to adjust the current page back when we clear the pages 530 if (hasCustomContent()) { 531 removeCustomContentPage(); 532 } 533 534 // Remove the pages and clear the screen models 535 removeAllViews(); 536 mScreenOrder.clear(); 537 mWorkspaceScreens.clear(); 538 539 // Re-enable the layout transitions 540 enableLayoutTransitions(); 541 } 542 543 public long insertNewWorkspaceScreenBeforeEmptyScreen(long screenId) { 544 // Find the index to insert this view into. If the empty screen exists, then 545 // insert it before that. 546 int insertIndex = mScreenOrder.indexOf(EXTRA_EMPTY_SCREEN_ID); 547 if (insertIndex < 0) { 548 insertIndex = mScreenOrder.size(); 549 } 550 return insertNewWorkspaceScreen(screenId, insertIndex); 551 } 552 553 public long insertNewWorkspaceScreen(long screenId) { 554 return insertNewWorkspaceScreen(screenId, getChildCount()); 555 } 556 557 public long insertNewWorkspaceScreen(long screenId, int insertIndex) { 558 // Log to disk 559 Launcher.addDumpLog(TAG, "11683562 - insertNewWorkspaceScreen(): " + screenId + 560 " at index: " + insertIndex, true); 561 562 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(); 582 583 mWorkspaceScreens.put(CUSTOM_CONTENT_SCREEN_ID, customScreen); 584 mScreenOrder.add(0, CUSTOM_CONTENT_SCREEN_ID); 585 586 // We want no padding on the custom content 587 customScreen.setPadding(0, 0, 0, 0); 588 589 addFullScreenPage(customScreen); 590 591 // Ensure that the current page and default page are maintained. 592 mDefaultPage = mOriginalDefaultPage + 1; 593 594 // Update the custom content hint 595 mLauncher.getLauncherClings().updateCustomContentHintVisibility(); 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 mLauncher.getLauncherClings().updateCustomContentHintVisibility(); 625 if (mRestorePage != INVALID_RESTORE_PAGE) { 626 mRestorePage = mRestorePage - 1; 627 } else { 628 setCurrentPage(getCurrentPage() - 1); 629 } 630 } 631 632 public void addToCustomContentPage(View customContent, CustomContentCallbacks callbacks, 633 String description) { 634 if (getPageIndexForScreenId(CUSTOM_CONTENT_SCREEN_ID) < 0) { 635 throw new RuntimeException("Expected custom content screen to exist"); 636 } 637 638 // Add the custom content to the full screen custom page 639 CellLayout customScreen = getScreenWithId(CUSTOM_CONTENT_SCREEN_ID); 640 int spanX = customScreen.getCountX(); 641 int spanY = customScreen.getCountY(); 642 CellLayout.LayoutParams lp = new CellLayout.LayoutParams(0, 0, spanX, spanY); 643 lp.canReorder = false; 644 lp.isFullscreen = true; 645 if (customContent instanceof Insettable) { 646 ((Insettable)customContent).setInsets(mInsets); 647 } 648 649 // Verify that the child is removed from any existing parent. 650 if (customContent.getParent() instanceof ViewGroup) { 651 ViewGroup parent = (ViewGroup) customContent.getParent(); 652 parent.removeView(customContent); 653 } 654 customScreen.removeAllViews(); 655 customScreen.addViewToCellLayout(customContent, 0, 0, lp, true); 656 mCustomContentDescription = description; 657 658 mCustomContentCallbacks = callbacks; 659 } 660 661 public void addExtraEmptyScreenOnDrag() { 662 // Log to disk 663 Launcher.addDumpLog(TAG, "11683562 - addExtraEmptyScreenOnDrag()", true); 664 665 boolean lastChildOnScreen = false; 666 boolean childOnFinalScreen = false; 667 668 // Cancel any pending removal of empty screen 669 mRemoveEmptyScreenRunnable = null; 670 671 if (mDragSourceInternal != null) { 672 if (mDragSourceInternal.getChildCount() == 1) { 673 lastChildOnScreen = true; 674 } 675 CellLayout cl = (CellLayout) mDragSourceInternal.getParent(); 676 if (indexOfChild(cl) == getChildCount() - 1) { 677 childOnFinalScreen = true; 678 } 679 } 680 681 // If this is the last item on the final screen 682 if (lastChildOnScreen && childOnFinalScreen) { 683 return; 684 } 685 if (!mWorkspaceScreens.containsKey(EXTRA_EMPTY_SCREEN_ID)) { 686 insertNewWorkspaceScreen(EXTRA_EMPTY_SCREEN_ID); 687 } 688 } 689 690 public boolean addExtraEmptyScreen() { 691 // Log to disk 692 Launcher.addDumpLog(TAG, "11683562 - addExtraEmptyScreen()", true); 693 694 if (!mWorkspaceScreens.containsKey(EXTRA_EMPTY_SCREEN_ID)) { 695 insertNewWorkspaceScreen(EXTRA_EMPTY_SCREEN_ID); 696 return true; 697 } 698 return false; 699 } 700 701 private void convertFinalScreenToEmptyScreenIfNecessary() { 702 // Log to disk 703 Launcher.addDumpLog(TAG, "11683562 - convertFinalScreenToEmptyScreenIfNecessary()", true); 704 705 if (mLauncher.isWorkspaceLoading()) { 706 // Invalid and dangerous operation if workspace is loading 707 Launcher.addDumpLog(TAG, " - workspace loading, skip", true); 708 return; 709 } 710 711 if (hasExtraEmptyScreen() || mScreenOrder.size() == 0) return; 712 long finalScreenId = mScreenOrder.get(mScreenOrder.size() - 1); 713 714 if (finalScreenId == CUSTOM_CONTENT_SCREEN_ID) return; 715 CellLayout finalScreen = mWorkspaceScreens.get(finalScreenId); 716 717 // If the final screen is empty, convert it to the extra empty screen 718 if (finalScreen.getShortcutsAndWidgets().getChildCount() == 0 && 719 !finalScreen.isDropPending()) { 720 mWorkspaceScreens.remove(finalScreenId); 721 mScreenOrder.remove(finalScreenId); 722 723 // if this is the last non-custom content screen, convert it to the empty screen 724 mWorkspaceScreens.put(EXTRA_EMPTY_SCREEN_ID, finalScreen); 725 mScreenOrder.add(EXTRA_EMPTY_SCREEN_ID); 726 727 // Update the model if we have changed any screens 728 mLauncher.getModel().updateWorkspaceScreenOrder(mLauncher, mScreenOrder); 729 Launcher.addDumpLog(TAG, "11683562 - extra empty screen: " + finalScreenId, true); 730 } 731 } 732 733 public void removeExtraEmptyScreen(final boolean animate, boolean stripEmptyScreens) { 734 removeExtraEmptyScreenDelayed(animate, null, 0, stripEmptyScreens); 735 } 736 737 public void removeExtraEmptyScreenDelayed(final boolean animate, final Runnable onComplete, 738 final int delay, final boolean stripEmptyScreens) { 739 // Log to disk 740 Launcher.addDumpLog(TAG, "11683562 - removeExtraEmptyScreen()", true); 741 if (mLauncher.isWorkspaceLoading()) { 742 // Don't strip empty screens if the workspace is still loading 743 Launcher.addDumpLog(TAG, " - workspace loading, skip", true); 744 return; 745 } 746 747 if (delay > 0) { 748 postDelayed(new Runnable() { 749 @Override 750 public void run() { 751 removeExtraEmptyScreenDelayed(animate, onComplete, 0, stripEmptyScreens); 752 } 753 }, delay); 754 return; 755 } 756 757 convertFinalScreenToEmptyScreenIfNecessary(); 758 if (hasExtraEmptyScreen()) { 759 int emptyIndex = mScreenOrder.indexOf(EXTRA_EMPTY_SCREEN_ID); 760 if (getNextPage() == emptyIndex) { 761 snapToPage(getNextPage() - 1, SNAP_OFF_EMPTY_SCREEN_DURATION); 762 fadeAndRemoveEmptyScreen(SNAP_OFF_EMPTY_SCREEN_DURATION, FADE_EMPTY_SCREEN_DURATION, 763 onComplete, stripEmptyScreens); 764 } else { 765 fadeAndRemoveEmptyScreen(0, FADE_EMPTY_SCREEN_DURATION, 766 onComplete, stripEmptyScreens); 767 } 768 return; 769 } else if (stripEmptyScreens) { 770 // If we're not going to strip the empty screens after removing 771 // the extra empty screen, do it right away. 772 stripEmptyScreens(); 773 } 774 775 if (onComplete != null) { 776 onComplete.run(); 777 } 778 } 779 780 private void fadeAndRemoveEmptyScreen(int delay, int duration, final Runnable onComplete, 781 final boolean stripEmptyScreens) { 782 // Log to disk 783 // XXX: Do we need to update LM workspace screens below? 784 Launcher.addDumpLog(TAG, "11683562 - fadeAndRemoveEmptyScreen()", true); 785 PropertyValuesHolder alpha = PropertyValuesHolder.ofFloat("alpha", 0f); 786 PropertyValuesHolder bgAlpha = PropertyValuesHolder.ofFloat("backgroundAlpha", 0f); 787 788 final CellLayout cl = mWorkspaceScreens.get(EXTRA_EMPTY_SCREEN_ID); 789 790 mRemoveEmptyScreenRunnable = new Runnable() { 791 @Override 792 public void run() { 793 if (hasExtraEmptyScreen()) { 794 mWorkspaceScreens.remove(EXTRA_EMPTY_SCREEN_ID); 795 mScreenOrder.remove(EXTRA_EMPTY_SCREEN_ID); 796 removeView(cl); 797 if (stripEmptyScreens) { 798 stripEmptyScreens(); 799 } 800 } 801 } 802 }; 803 804 ObjectAnimator oa = ObjectAnimator.ofPropertyValuesHolder(cl, alpha, bgAlpha); 805 oa.setDuration(duration); 806 oa.setStartDelay(delay); 807 oa.addListener(new AnimatorListenerAdapter() { 808 @Override 809 public void onAnimationEnd(Animator animation) { 810 if (mRemoveEmptyScreenRunnable != null) { 811 mRemoveEmptyScreenRunnable.run(); 812 } 813 if (onComplete != null) { 814 onComplete.run(); 815 } 816 } 817 }); 818 oa.start(); 819 } 820 821 public boolean hasExtraEmptyScreen() { 822 int nScreens = getChildCount(); 823 nScreens = nScreens - numCustomPages(); 824 return mWorkspaceScreens.containsKey(EXTRA_EMPTY_SCREEN_ID) && nScreens > 1; 825 } 826 827 public long commitExtraEmptyScreen() { 828 // Log to disk 829 Launcher.addDumpLog(TAG, "11683562 - commitExtraEmptyScreen()", true); 830 if (mLauncher.isWorkspaceLoading()) { 831 // Invalid and dangerous operation if workspace is loading 832 Launcher.addDumpLog(TAG, " - workspace loading, skip", true); 833 return -1; 834 } 835 836 int index = getPageIndexForScreenId(EXTRA_EMPTY_SCREEN_ID); 837 CellLayout cl = mWorkspaceScreens.get(EXTRA_EMPTY_SCREEN_ID); 838 mWorkspaceScreens.remove(EXTRA_EMPTY_SCREEN_ID); 839 mScreenOrder.remove(EXTRA_EMPTY_SCREEN_ID); 840 841 long newId = LauncherAppState.getLauncherProvider().generateNewScreenId(); 842 mWorkspaceScreens.put(newId, cl); 843 mScreenOrder.add(newId); 844 845 // Update the page indicator marker 846 if (getPageIndicator() != null) { 847 getPageIndicator().updateMarker(index, getPageIndicatorMarker(index)); 848 } 849 850 // Update the model for the new screen 851 mLauncher.getModel().updateWorkspaceScreenOrder(mLauncher, mScreenOrder); 852 853 return newId; 854 } 855 856 public CellLayout getScreenWithId(long screenId) { 857 CellLayout layout = mWorkspaceScreens.get(screenId); 858 return layout; 859 } 860 861 public long getIdForScreen(CellLayout layout) { 862 Iterator<Long> iter = mWorkspaceScreens.keySet().iterator(); 863 while (iter.hasNext()) { 864 long id = iter.next(); 865 if (mWorkspaceScreens.get(id) == layout) { 866 return id; 867 } 868 } 869 return -1; 870 } 871 872 public int getPageIndexForScreenId(long screenId) { 873 return indexOfChild(mWorkspaceScreens.get(screenId)); 874 } 875 876 public long getScreenIdForPageIndex(int index) { 877 if (0 <= index && index < mScreenOrder.size()) { 878 return mScreenOrder.get(index); 879 } 880 return -1; 881 } 882 883 ArrayList<Long> getScreenOrder() { 884 return mScreenOrder; 885 } 886 887 public void stripEmptyScreens() { 888 // Log to disk 889 Launcher.addDumpLog(TAG, "11683562 - stripEmptyScreens()", true); 890 891 if (mLauncher.isWorkspaceLoading()) { 892 // Don't strip empty screens if the workspace is still loading. 893 // This is dangerous and can result in data loss. 894 Launcher.addDumpLog(TAG, " - workspace loading, skip", true); 895 return; 896 } 897 898 if (isPageMoving()) { 899 mStripScreensOnPageStopMoving = true; 900 return; 901 } 902 903 int currentPage = getNextPage(); 904 ArrayList<Long> removeScreens = new ArrayList<Long>(); 905 for (Long id: mWorkspaceScreens.keySet()) { 906 CellLayout cl = mWorkspaceScreens.get(id); 907 if (id >= 0 && cl.getShortcutsAndWidgets().getChildCount() == 0) { 908 removeScreens.add(id); 909 } 910 } 911 912 // We enforce at least one page to add new items to. In the case that we remove the last 913 // such screen, we convert the last screen to the empty screen 914 int minScreens = 1 + numCustomPages(); 915 916 int pageShift = 0; 917 for (Long id: removeScreens) { 918 Launcher.addDumpLog(TAG, "11683562 - removing id: " + id, true); 919 CellLayout cl = mWorkspaceScreens.get(id); 920 mWorkspaceScreens.remove(id); 921 mScreenOrder.remove(id); 922 923 if (getChildCount() > minScreens) { 924 if (indexOfChild(cl) < currentPage) { 925 pageShift++; 926 } 927 removeView(cl); 928 } else { 929 // if this is the last non-custom content screen, convert it to the empty screen 930 mRemoveEmptyScreenRunnable = null; 931 mWorkspaceScreens.put(EXTRA_EMPTY_SCREEN_ID, cl); 932 mScreenOrder.add(EXTRA_EMPTY_SCREEN_ID); 933 } 934 } 935 936 if (!removeScreens.isEmpty()) { 937 // Update the model if we have changed any screens 938 mLauncher.getModel().updateWorkspaceScreenOrder(mLauncher, mScreenOrder); 939 } 940 941 if (pageShift >= 0) { 942 setCurrentPage(currentPage - pageShift); 943 } 944 } 945 946 // See implementation for parameter definition. 947 void addInScreen(View child, long container, long screenId, 948 int x, int y, int spanX, int spanY) { 949 addInScreen(child, container, screenId, x, y, spanX, spanY, false, false); 950 } 951 952 // At bind time, we use the rank (screenId) to compute x and y for hotseat items. 953 // See implementation for parameter definition. 954 void addInScreenFromBind(View child, long container, long screenId, int x, int y, 955 int spanX, int spanY) { 956 addInScreen(child, container, screenId, x, y, spanX, spanY, false, true); 957 } 958 959 // See implementation for parameter definition. 960 void addInScreen(View child, long container, long screenId, int x, int y, int spanX, int spanY, 961 boolean insert) { 962 addInScreen(child, container, screenId, x, y, spanX, spanY, insert, false); 963 } 964 965 /** 966 * Adds the specified child in the specified screen. The position and dimension of 967 * the child are defined by x, y, spanX and spanY. 968 * 969 * @param child The child to add in one of the workspace's screens. 970 * @param screenId The screen in which to add the child. 971 * @param x The X position of the child in the screen's grid. 972 * @param y The Y position of the child in the screen's grid. 973 * @param spanX The number of cells spanned horizontally by the child. 974 * @param spanY The number of cells spanned vertically by the child. 975 * @param insert When true, the child is inserted at the beginning of the children list. 976 * @param computeXYFromRank When true, we use the rank (stored in screenId) to compute 977 * the x and y position in which to place hotseat items. Otherwise 978 * we use the x and y position to compute the rank. 979 */ 980 void addInScreen(View child, long container, long screenId, int x, int y, int spanX, int spanY, 981 boolean insert, boolean computeXYFromRank) { 982 if (container == LauncherSettings.Favorites.CONTAINER_DESKTOP) { 983 if (getScreenWithId(screenId) == null) { 984 Log.e(TAG, "Skipping child, screenId " + screenId + " not found"); 985 // DEBUGGING - Print out the stack trace to see where we are adding from 986 new Throwable().printStackTrace(); 987 return; 988 } 989 } 990 if (screenId == EXTRA_EMPTY_SCREEN_ID) { 991 // This should never happen 992 throw new RuntimeException("Screen id should not be EXTRA_EMPTY_SCREEN_ID"); 993 } 994 995 final CellLayout layout; 996 if (container == LauncherSettings.Favorites.CONTAINER_HOTSEAT) { 997 layout = mLauncher.getHotseat().getLayout(); 998 child.setOnKeyListener(null); 999 1000 // Hide folder title in the hotseat 1001 if (child instanceof FolderIcon) { 1002 ((FolderIcon) child).setTextVisible(false); 1003 } 1004 1005 if (computeXYFromRank) { 1006 x = mLauncher.getHotseat().getCellXFromOrder((int) screenId); 1007 y = mLauncher.getHotseat().getCellYFromOrder((int) screenId); 1008 } else { 1009 screenId = mLauncher.getHotseat().getOrderInHotseat(x, y); 1010 } 1011 } else { 1012 // Show folder title if not in the hotseat 1013 if (child instanceof FolderIcon) { 1014 ((FolderIcon) child).setTextVisible(true); 1015 } 1016 layout = getScreenWithId(screenId); 1017 child.setOnKeyListener(new IconKeyEventListener()); 1018 } 1019 1020 ViewGroup.LayoutParams genericLp = child.getLayoutParams(); 1021 CellLayout.LayoutParams lp; 1022 if (genericLp == null || !(genericLp instanceof CellLayout.LayoutParams)) { 1023 lp = new CellLayout.LayoutParams(x, y, spanX, spanY); 1024 } else { 1025 lp = (CellLayout.LayoutParams) genericLp; 1026 lp.cellX = x; 1027 lp.cellY = y; 1028 lp.cellHSpan = spanX; 1029 lp.cellVSpan = spanY; 1030 } 1031 1032 if (spanX < 0 && spanY < 0) { 1033 lp.isLockedToGrid = false; 1034 } 1035 1036 // Get the canonical child id to uniquely represent this view in this screen 1037 ItemInfo info = (ItemInfo) child.getTag(); 1038 int childId = mLauncher.getViewIdForItem(info); 1039 1040 boolean markCellsAsOccupied = !(child instanceof Folder); 1041 if (!layout.addViewToCellLayout(child, insert ? 0 : -1, childId, lp, markCellsAsOccupied)) { 1042 // TODO: This branch occurs when the workspace is adding views 1043 // outside of the defined grid 1044 // maybe we should be deleting these items from the LauncherModel? 1045 Launcher.addDumpLog(TAG, "Failed to add to item at (" + lp.cellX + "," + lp.cellY + ") to CellLayout", true); 1046 } 1047 1048 if (!(child instanceof Folder)) { 1049 child.setHapticFeedbackEnabled(false); 1050 child.setOnLongClickListener(mLongClickListener); 1051 } 1052 if (child instanceof DropTarget) { 1053 mDragController.addDropTarget((DropTarget) child); 1054 } 1055 } 1056 1057 /** 1058 * Called directly from a CellLayout (not by the framework), after we've been added as a 1059 * listener via setOnInterceptTouchEventListener(). This allows us to tell the CellLayout 1060 * that it should intercept touch events, which is not something that is normally supported. 1061 */ 1062 @Override 1063 public boolean onTouch(View v, MotionEvent event) { 1064 return (workspaceInModalState() || !isFinishedSwitchingState()) 1065 || (!workspaceInModalState() && indexOfChild(v) != mCurrentPage); 1066 } 1067 1068 public boolean isSwitchingState() { 1069 return mIsSwitchingState; 1070 } 1071 1072 /** This differs from isSwitchingState in that we take into account how far the transition 1073 * has completed. */ 1074 public boolean isFinishedSwitchingState() { 1075 return !mIsSwitchingState || (mTransitionProgress > 0.5f); 1076 } 1077 1078 protected void onWindowVisibilityChanged (int visibility) { 1079 mLauncher.onWindowVisibilityChanged(visibility); 1080 } 1081 1082 @Override 1083 public boolean dispatchUnhandledMove(View focused, int direction) { 1084 if (workspaceInModalState() || !isFinishedSwitchingState()) { 1085 // when the home screens are shrunken, shouldn't allow side-scrolling 1086 return false; 1087 } 1088 return super.dispatchUnhandledMove(focused, direction); 1089 } 1090 1091 @Override 1092 public boolean onInterceptTouchEvent(MotionEvent ev) { 1093 switch (ev.getAction() & MotionEvent.ACTION_MASK) { 1094 case MotionEvent.ACTION_DOWN: 1095 mXDown = ev.getX(); 1096 mYDown = ev.getY(); 1097 mTouchDownTime = System.currentTimeMillis(); 1098 break; 1099 case MotionEvent.ACTION_POINTER_UP: 1100 case MotionEvent.ACTION_UP: 1101 if (mTouchState == TOUCH_STATE_REST) { 1102 final CellLayout currentPage = (CellLayout) getChildAt(mCurrentPage); 1103 if (!currentPage.lastDownOnOccupiedCell()) { 1104 onWallpaperTap(ev); 1105 } 1106 } 1107 } 1108 return super.onInterceptTouchEvent(ev); 1109 } 1110 1111 protected void reinflateWidgetsIfNecessary() { 1112 final int clCount = getChildCount(); 1113 for (int i = 0; i < clCount; i++) { 1114 CellLayout cl = (CellLayout) getChildAt(i); 1115 ShortcutAndWidgetContainer swc = cl.getShortcutsAndWidgets(); 1116 final int itemCount = swc.getChildCount(); 1117 for (int j = 0; j < itemCount; j++) { 1118 View v = swc.getChildAt(j); 1119 1120 if (v != null && v.getTag() instanceof LauncherAppWidgetInfo) { 1121 LauncherAppWidgetInfo info = (LauncherAppWidgetInfo) v.getTag(); 1122 LauncherAppWidgetHostView lahv = (LauncherAppWidgetHostView) info.hostView; 1123 if (lahv != null && lahv.isReinflateRequired()) { 1124 mLauncher.removeAppWidget(info); 1125 // Remove the current widget which is inflated with the wrong orientation 1126 cl.removeView(lahv); 1127 mLauncher.bindAppWidget(info); 1128 } 1129 } 1130 } 1131 } 1132 } 1133 1134 @Override 1135 protected void determineScrollingStart(MotionEvent ev) { 1136 if (!isFinishedSwitchingState()) return; 1137 1138 float deltaX = ev.getX() - mXDown; 1139 float absDeltaX = Math.abs(deltaX); 1140 float absDeltaY = Math.abs(ev.getY() - mYDown); 1141 1142 if (Float.compare(absDeltaX, 0f) == 0) return; 1143 1144 float slope = absDeltaY / absDeltaX; 1145 float theta = (float) Math.atan(slope); 1146 1147 if (absDeltaX > mTouchSlop || absDeltaY > mTouchSlop) { 1148 cancelCurrentPageLongPress(); 1149 } 1150 1151 boolean passRightSwipesToCustomContent = 1152 (mTouchDownTime - mCustomContentShowTime) > CUSTOM_CONTENT_GESTURE_DELAY; 1153 1154 boolean swipeInIgnoreDirection = isLayoutRtl() ? deltaX < 0 : deltaX > 0; 1155 boolean onCustomContentScreen = 1156 getScreenIdForPageIndex(getCurrentPage()) == CUSTOM_CONTENT_SCREEN_ID; 1157 if (swipeInIgnoreDirection && onCustomContentScreen && passRightSwipesToCustomContent) { 1158 // Pass swipes to the right to the custom content page. 1159 return; 1160 } 1161 1162 if (onCustomContentScreen && (mCustomContentCallbacks != null) 1163 && !mCustomContentCallbacks.isScrollingAllowed()) { 1164 // Don't allow workspace scrolling if the current custom content screen doesn't allow 1165 // scrolling. 1166 return; 1167 } 1168 1169 if (theta > MAX_SWIPE_ANGLE) { 1170 // Above MAX_SWIPE_ANGLE, we don't want to ever start scrolling the workspace 1171 return; 1172 } else if (theta > START_DAMPING_TOUCH_SLOP_ANGLE) { 1173 // Above START_DAMPING_TOUCH_SLOP_ANGLE and below MAX_SWIPE_ANGLE, we want to 1174 // increase the touch slop to make it harder to begin scrolling the workspace. This 1175 // results in vertically scrolling widgets to more easily. The higher the angle, the 1176 // more we increase touch slop. 1177 theta -= START_DAMPING_TOUCH_SLOP_ANGLE; 1178 float extraRatio = (float) 1179 Math.sqrt((theta / (MAX_SWIPE_ANGLE - START_DAMPING_TOUCH_SLOP_ANGLE))); 1180 super.determineScrollingStart(ev, 1 + TOUCH_SLOP_DAMPING_FACTOR * extraRatio); 1181 } else { 1182 // Below START_DAMPING_TOUCH_SLOP_ANGLE, we don't do anything special 1183 super.determineScrollingStart(ev); 1184 } 1185 } 1186 1187 protected void onPageBeginMoving() { 1188 super.onPageBeginMoving(); 1189 1190 if (isHardwareAccelerated()) { 1191 updateChildrenLayersEnabled(false); 1192 } else { 1193 if (mNextPage != INVALID_PAGE) { 1194 // we're snapping to a particular screen 1195 enableChildrenCache(mCurrentPage, mNextPage); 1196 } else { 1197 // this is when user is actively dragging a particular screen, they might 1198 // swipe it either left or right (but we won't advance by more than one screen) 1199 enableChildrenCache(mCurrentPage - 1, mCurrentPage + 1); 1200 } 1201 } 1202 1203 // If we are not fading in adjacent screens, we still need to restore the alpha in case the 1204 // user scrolls while we are transitioning (should not affect dispatchDraw optimizations) 1205 if (!mWorkspaceFadeInAdjacentScreens) { 1206 for (int i = 0; i < getChildCount(); ++i) { 1207 ((CellLayout) getPageAt(i)).setShortcutAndWidgetAlpha(1f); 1208 } 1209 } 1210 } 1211 1212 protected void onPageEndMoving() { 1213 super.onPageEndMoving(); 1214 1215 if (isHardwareAccelerated()) { 1216 updateChildrenLayersEnabled(false); 1217 } else { 1218 clearChildrenCache(); 1219 } 1220 1221 if (mDragController.isDragging()) { 1222 if (workspaceInModalState()) { 1223 // If we are in springloaded mode, then force an event to check if the current touch 1224 // is under a new page (to scroll to) 1225 mDragController.forceTouchMove(); 1226 } 1227 } 1228 1229 if (mDelayedResizeRunnable != null) { 1230 mDelayedResizeRunnable.run(); 1231 mDelayedResizeRunnable = null; 1232 } 1233 1234 if (mDelayedSnapToPageRunnable != null) { 1235 mDelayedSnapToPageRunnable.run(); 1236 mDelayedSnapToPageRunnable = null; 1237 } 1238 if (mStripScreensOnPageStopMoving) { 1239 stripEmptyScreens(); 1240 mStripScreensOnPageStopMoving = false; 1241 } 1242 } 1243 1244 @Override 1245 protected void notifyPageSwitchListener() { 1246 super.notifyPageSwitchListener(); 1247 Launcher.setScreen(getNextPage()); 1248 1249 if (hasCustomContent() && getNextPage() == 0 && !mCustomContentShowing) { 1250 mCustomContentShowing = true; 1251 if (mCustomContentCallbacks != null) { 1252 mCustomContentCallbacks.onShow(false); 1253 mCustomContentShowTime = System.currentTimeMillis(); 1254 mLauncher.updateVoiceButtonProxyVisible(false); 1255 } 1256 } else if (hasCustomContent() && getNextPage() != 0 && mCustomContentShowing) { 1257 mCustomContentShowing = false; 1258 if (mCustomContentCallbacks != null) { 1259 mCustomContentCallbacks.onHide(); 1260 mLauncher.resetQSBScroll(); 1261 mLauncher.updateVoiceButtonProxyVisible(false); 1262 } 1263 } 1264 if (getPageIndicator() != null) { 1265 getPageIndicator().setContentDescription(getPageIndicatorDescription()); 1266 } 1267 } 1268 1269 protected CustomContentCallbacks getCustomContentCallbacks() { 1270 return mCustomContentCallbacks; 1271 } 1272 1273 protected void setWallpaperDimension() { 1274 new AsyncTask<Void, Void, Void>() { 1275 public Void doInBackground(Void ... args) { 1276 String spKey = WallpaperCropActivity.getSharedPreferencesKey(); 1277 SharedPreferences sp = 1278 mLauncher.getSharedPreferences(spKey, Context.MODE_MULTI_PROCESS); 1279 LauncherWallpaperPickerActivity.suggestWallpaperDimension(mLauncher.getResources(), 1280 sp, mLauncher.getWindowManager(), mWallpaperManager, 1281 mLauncher.overrideWallpaperDimensions()); 1282 return null; 1283 } 1284 }.executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR, (Void) null); 1285 } 1286 1287 protected void snapToPage(int whichPage, Runnable r) { 1288 snapToPage(whichPage, SLOW_PAGE_SNAP_ANIMATION_DURATION, r); 1289 } 1290 1291 protected void snapToPage(int whichPage, int duration, Runnable r) { 1292 if (mDelayedSnapToPageRunnable != null) { 1293 mDelayedSnapToPageRunnable.run(); 1294 } 1295 mDelayedSnapToPageRunnable = r; 1296 snapToPage(whichPage, duration); 1297 } 1298 1299 public void snapToScreenId(long screenId) { 1300 snapToScreenId(screenId, null); 1301 } 1302 1303 protected void snapToScreenId(long screenId, Runnable r) { 1304 snapToPage(getPageIndexForScreenId(screenId), r); 1305 } 1306 1307 class WallpaperOffsetInterpolator implements Choreographer.FrameCallback { 1308 float mFinalOffset = 0.0f; 1309 float mCurrentOffset = 0.5f; // to force an initial update 1310 boolean mWaitingForUpdate; 1311 Choreographer mChoreographer; 1312 Interpolator mInterpolator; 1313 boolean mAnimating; 1314 long mAnimationStartTime; 1315 float mAnimationStartOffset; 1316 private final int ANIMATION_DURATION = 250; 1317 // Don't use all the wallpaper for parallax until you have at least this many pages 1318 private final int MIN_PARALLAX_PAGE_SPAN = 3; 1319 int mNumScreens; 1320 1321 public WallpaperOffsetInterpolator() { 1322 mChoreographer = Choreographer.getInstance(); 1323 mInterpolator = new DecelerateInterpolator(1.5f); 1324 } 1325 1326 @Override 1327 public void doFrame(long frameTimeNanos) { 1328 updateOffset(false); 1329 } 1330 1331 private void updateOffset(boolean force) { 1332 if (mWaitingForUpdate || force) { 1333 mWaitingForUpdate = false; 1334 if (computeScrollOffset() && mWindowToken != null) { 1335 try { 1336 mWallpaperManager.setWallpaperOffsets(mWindowToken, 1337 mWallpaperOffset.getCurrX(), 0.5f); 1338 setWallpaperOffsetSteps(); 1339 } catch (IllegalArgumentException e) { 1340 Log.e(TAG, "Error updating wallpaper offset: " + e); 1341 } 1342 } 1343 } 1344 } 1345 1346 public boolean computeScrollOffset() { 1347 final float oldOffset = mCurrentOffset; 1348 if (mAnimating) { 1349 long durationSinceAnimation = System.currentTimeMillis() - mAnimationStartTime; 1350 float t0 = durationSinceAnimation / (float) ANIMATION_DURATION; 1351 float t1 = mInterpolator.getInterpolation(t0); 1352 mCurrentOffset = mAnimationStartOffset + 1353 (mFinalOffset - mAnimationStartOffset) * t1; 1354 mAnimating = durationSinceAnimation < ANIMATION_DURATION; 1355 } else { 1356 mCurrentOffset = mFinalOffset; 1357 } 1358 1359 if (Math.abs(mCurrentOffset - mFinalOffset) > 0.0000001f) { 1360 scheduleUpdate(); 1361 } 1362 if (Math.abs(oldOffset - mCurrentOffset) > 0.0000001f) { 1363 return true; 1364 } 1365 return false; 1366 } 1367 1368 private float wallpaperOffsetForCurrentScroll() { 1369 if (getChildCount() <= 1) { 1370 return 0; 1371 } 1372 1373 // Exclude the leftmost page 1374 int emptyExtraPages = numEmptyScreensToIgnore(); 1375 int firstIndex = numCustomPages(); 1376 // Exclude the last extra empty screen (if we have > MIN_PARALLAX_PAGE_SPAN pages) 1377 int lastIndex = getChildCount() - 1 - emptyExtraPages; 1378 if (isLayoutRtl()) { 1379 int temp = firstIndex; 1380 firstIndex = lastIndex; 1381 lastIndex = temp; 1382 } 1383 1384 int firstPageScrollX = getScrollForPage(firstIndex); 1385 int scrollRange = getScrollForPage(lastIndex) - firstPageScrollX; 1386 if (scrollRange == 0) { 1387 return 0; 1388 } else { 1389 // TODO: do different behavior if it's a live wallpaper? 1390 // Sometimes the left parameter of the pages is animated during a layout transition; 1391 // this parameter offsets it to keep the wallpaper from animating as well 1392 int adjustedScroll = 1393 getScrollX() - firstPageScrollX - getLayoutTransitionOffsetForPage(0); 1394 float offset = Math.min(1, adjustedScroll / (float) scrollRange); 1395 offset = Math.max(0, offset); 1396 // Don't use up all the wallpaper parallax until you have at least 1397 // MIN_PARALLAX_PAGE_SPAN pages 1398 int numScrollingPages = getNumScreensExcludingEmptyAndCustom(); 1399 int parallaxPageSpan; 1400 if (mWallpaperIsLiveWallpaper) { 1401 parallaxPageSpan = numScrollingPages - 1; 1402 } else { 1403 parallaxPageSpan = Math.max(MIN_PARALLAX_PAGE_SPAN, numScrollingPages - 1); 1404 } 1405 mNumPagesForWallpaperParallax = parallaxPageSpan; 1406 1407 // On RTL devices, push the wallpaper offset to the right if we don't have enough 1408 // pages (ie if numScrollingPages < MIN_PARALLAX_PAGE_SPAN) 1409 int padding = isLayoutRtl() ? parallaxPageSpan - numScrollingPages + 1 : 0; 1410 return offset * (padding + numScrollingPages - 1) / parallaxPageSpan; 1411 } 1412 } 1413 1414 private int numEmptyScreensToIgnore() { 1415 int numScrollingPages = getChildCount() - numCustomPages(); 1416 if (numScrollingPages >= MIN_PARALLAX_PAGE_SPAN && hasExtraEmptyScreen()) { 1417 return 1; 1418 } else { 1419 return 0; 1420 } 1421 } 1422 1423 private int getNumScreensExcludingEmptyAndCustom() { 1424 int numScrollingPages = getChildCount() - numEmptyScreensToIgnore() - numCustomPages(); 1425 return numScrollingPages; 1426 } 1427 1428 public void syncWithScroll() { 1429 float offset = wallpaperOffsetForCurrentScroll(); 1430 mWallpaperOffset.setFinalX(offset); 1431 updateOffset(true); 1432 } 1433 1434 public float getCurrX() { 1435 return mCurrentOffset; 1436 } 1437 1438 public float getFinalX() { 1439 return mFinalOffset; 1440 } 1441 1442 private void animateToFinal() { 1443 mAnimating = true; 1444 mAnimationStartOffset = mCurrentOffset; 1445 mAnimationStartTime = System.currentTimeMillis(); 1446 } 1447 1448 private void setWallpaperOffsetSteps() { 1449 // Set wallpaper offset steps (1 / (number of screens - 1)) 1450 float xOffset = 1.0f / mNumPagesForWallpaperParallax; 1451 if (xOffset != mLastSetWallpaperOffsetSteps) { 1452 mWallpaperManager.setWallpaperOffsetSteps(xOffset, 1.0f); 1453 mLastSetWallpaperOffsetSteps = xOffset; 1454 } 1455 } 1456 1457 public void setFinalX(float x) { 1458 scheduleUpdate(); 1459 mFinalOffset = Math.max(0f, Math.min(x, 1.0f)); 1460 if (getNumScreensExcludingEmptyAndCustom() != mNumScreens) { 1461 if (mNumScreens > 0) { 1462 // Don't animate if we're going from 0 screens 1463 animateToFinal(); 1464 } 1465 mNumScreens = getNumScreensExcludingEmptyAndCustom(); 1466 } 1467 } 1468 1469 private void scheduleUpdate() { 1470 if (!mWaitingForUpdate) { 1471 mChoreographer.postFrameCallback(this); 1472 mWaitingForUpdate = true; 1473 } 1474 } 1475 1476 public void jumpToFinal() { 1477 mCurrentOffset = mFinalOffset; 1478 } 1479 } 1480 1481 @Override 1482 public void computeScroll() { 1483 super.computeScroll(); 1484 mWallpaperOffset.syncWithScroll(); 1485 } 1486 1487 @Override 1488 public void announceForAccessibility(CharSequence text) { 1489 // Don't announce if apps is on top of us. 1490 if (!mLauncher.isAllAppsVisible()) { 1491 super.announceForAccessibility(text); 1492 } 1493 } 1494 1495 void showOutlines() { 1496 if (!workspaceInModalState() && !mIsSwitchingState) { 1497 if (mChildrenOutlineFadeOutAnimation != null) mChildrenOutlineFadeOutAnimation.cancel(); 1498 if (mChildrenOutlineFadeInAnimation != null) mChildrenOutlineFadeInAnimation.cancel(); 1499 mChildrenOutlineFadeInAnimation = LauncherAnimUtils.ofFloat(this, "childrenOutlineAlpha", 1.0f); 1500 mChildrenOutlineFadeInAnimation.setDuration(CHILDREN_OUTLINE_FADE_IN_DURATION); 1501 mChildrenOutlineFadeInAnimation.start(); 1502 } 1503 } 1504 1505 void hideOutlines() { 1506 if (!workspaceInModalState() && !mIsSwitchingState) { 1507 if (mChildrenOutlineFadeInAnimation != null) mChildrenOutlineFadeInAnimation.cancel(); 1508 if (mChildrenOutlineFadeOutAnimation != null) mChildrenOutlineFadeOutAnimation.cancel(); 1509 mChildrenOutlineFadeOutAnimation = LauncherAnimUtils.ofFloat(this, "childrenOutlineAlpha", 0.0f); 1510 mChildrenOutlineFadeOutAnimation.setDuration(CHILDREN_OUTLINE_FADE_OUT_DURATION); 1511 mChildrenOutlineFadeOutAnimation.setStartDelay(CHILDREN_OUTLINE_FADE_OUT_DELAY); 1512 mChildrenOutlineFadeOutAnimation.start(); 1513 } 1514 } 1515 1516 public void showOutlinesTemporarily() { 1517 if (!mIsPageMoving && !isTouchActive()) { 1518 snapToPage(mCurrentPage); 1519 } 1520 } 1521 1522 public void setChildrenOutlineAlpha(float alpha) { 1523 mChildrenOutlineAlpha = alpha; 1524 for (int i = 0; i < getChildCount(); i++) { 1525 CellLayout cl = (CellLayout) getChildAt(i); 1526 cl.setBackgroundAlpha(alpha); 1527 } 1528 } 1529 1530 public float getChildrenOutlineAlpha() { 1531 return mChildrenOutlineAlpha; 1532 } 1533 1534 private void animateBackgroundGradient(float finalAlpha, boolean animated) { 1535 final DragLayer dragLayer = mLauncher.getDragLayer(); 1536 1537 if (mBackgroundFadeInAnimation != null) { 1538 mBackgroundFadeInAnimation.cancel(); 1539 mBackgroundFadeInAnimation = null; 1540 } 1541 if (mBackgroundFadeOutAnimation != null) { 1542 mBackgroundFadeOutAnimation.cancel(); 1543 mBackgroundFadeOutAnimation = null; 1544 } 1545 float startAlpha = dragLayer.getBackgroundAlpha(); 1546 if (finalAlpha != startAlpha) { 1547 if (animated) { 1548 mBackgroundFadeOutAnimation = 1549 LauncherAnimUtils.ofFloat(this, startAlpha, finalAlpha); 1550 mBackgroundFadeOutAnimation.addUpdateListener(new AnimatorUpdateListener() { 1551 public void onAnimationUpdate(ValueAnimator animation) { 1552 dragLayer.setBackgroundAlpha( 1553 ((Float)animation.getAnimatedValue()).floatValue()); 1554 } 1555 }); 1556 mBackgroundFadeOutAnimation.setInterpolator(new DecelerateInterpolator(1.5f)); 1557 mBackgroundFadeOutAnimation.setDuration(BACKGROUND_FADE_OUT_DURATION); 1558 mBackgroundFadeOutAnimation.start(); 1559 } else { 1560 dragLayer.setBackgroundAlpha(finalAlpha); 1561 } 1562 } 1563 } 1564 1565 float backgroundAlphaInterpolator(float r) { 1566 float pivotA = 0.1f; 1567 float pivotB = 0.4f; 1568 if (r < pivotA) { 1569 return 0; 1570 } else if (r > pivotB) { 1571 return 1.0f; 1572 } else { 1573 return (r - pivotA)/(pivotB - pivotA); 1574 } 1575 } 1576 1577 private void updatePageAlphaValues(int screenCenter) { 1578 boolean isInOverscroll = mOverScrollX < 0 || mOverScrollX > mMaxScrollX; 1579 if (mWorkspaceFadeInAdjacentScreens && 1580 mState == State.NORMAL && 1581 !mIsSwitchingState && 1582 !isInOverscroll) { 1583 for (int i = numCustomPages(); i < getChildCount(); i++) { 1584 CellLayout child = (CellLayout) getChildAt(i); 1585 if (child != null) { 1586 float scrollProgress = getScrollProgress(screenCenter, child, i); 1587 float alpha = 1 - Math.abs(scrollProgress); 1588 child.getShortcutsAndWidgets().setAlpha(alpha); 1589 } 1590 } 1591 } 1592 } 1593 1594 private void setChildrenBackgroundAlphaMultipliers(float a) { 1595 for (int i = 0; i < getChildCount(); i++) { 1596 CellLayout child = (CellLayout) getChildAt(i); 1597 child.setBackgroundAlphaMultiplier(a); 1598 } 1599 } 1600 1601 public boolean hasCustomContent() { 1602 return (mScreenOrder.size() > 0 && mScreenOrder.get(0) == CUSTOM_CONTENT_SCREEN_ID); 1603 } 1604 1605 public int numCustomPages() { 1606 return hasCustomContent() ? 1 : 0; 1607 } 1608 1609 public boolean isOnOrMovingToCustomContent() { 1610 return hasCustomContent() && getNextPage() == 0; 1611 } 1612 1613 private void updateStateForCustomContent(int screenCenter) { 1614 float translationX = 0; 1615 float progress = 0; 1616 if (hasCustomContent()) { 1617 int index = mScreenOrder.indexOf(CUSTOM_CONTENT_SCREEN_ID); 1618 1619 int scrollDelta = getScrollX() - getScrollForPage(index) - 1620 getLayoutTransitionOffsetForPage(index); 1621 float scrollRange = getScrollForPage(index + 1) - getScrollForPage(index); 1622 translationX = scrollRange - scrollDelta; 1623 progress = (scrollRange - scrollDelta) / scrollRange; 1624 1625 if (isLayoutRtl()) { 1626 translationX = Math.min(0, translationX); 1627 } else { 1628 translationX = Math.max(0, translationX); 1629 } 1630 progress = Math.max(0, progress); 1631 } 1632 1633 if (Float.compare(progress, mLastCustomContentScrollProgress) == 0) return; 1634 1635 CellLayout cc = mWorkspaceScreens.get(CUSTOM_CONTENT_SCREEN_ID); 1636 if (progress > 0 && cc.getVisibility() != VISIBLE && !workspaceInModalState()) { 1637 cc.setVisibility(VISIBLE); 1638 } 1639 1640 mLastCustomContentScrollProgress = progress; 1641 1642 mLauncher.getDragLayer().setBackgroundAlpha(progress * 0.8f); 1643 1644 if (mLauncher.getHotseat() != null) { 1645 mLauncher.getHotseat().setTranslationX(translationX); 1646 } 1647 1648 if (getPageIndicator() != null) { 1649 getPageIndicator().setTranslationX(translationX); 1650 } 1651 1652 if (mCustomContentCallbacks != null) { 1653 mCustomContentCallbacks.onScrollProgressChanged(progress); 1654 } 1655 } 1656 1657 @Override 1658 protected OnClickListener getPageIndicatorClickListener() { 1659 AccessibilityManager am = (AccessibilityManager) 1660 getContext().getSystemService(Context.ACCESSIBILITY_SERVICE); 1661 if (!am.isTouchExplorationEnabled()) { 1662 return null; 1663 } 1664 OnClickListener listener = new OnClickListener() { 1665 @Override 1666 public void onClick(View arg0) { 1667 enterOverviewMode(); 1668 } 1669 }; 1670 return listener; 1671 } 1672 1673 @Override 1674 protected void screenScrolled(int screenCenter) { 1675 final boolean isRtl = isLayoutRtl(); 1676 super.screenScrolled(screenCenter); 1677 1678 updatePageAlphaValues(screenCenter); 1679 updateStateForCustomContent(screenCenter); 1680 enableHwLayersOnVisiblePages(); 1681 1682 boolean shouldOverScroll = (mOverScrollX < 0 && (!hasCustomContent() || isLayoutRtl())) || 1683 (mOverScrollX > mMaxScrollX && (!hasCustomContent() || !isLayoutRtl())); 1684 1685 if (shouldOverScroll) { 1686 int index = 0; 1687 float pivotX = 0f; 1688 final float leftBiasedPivot = 0.25f; 1689 final float rightBiasedPivot = 0.75f; 1690 final int lowerIndex = 0; 1691 final int upperIndex = getChildCount() - 1; 1692 1693 final boolean isLeftPage = mOverScrollX < 0; 1694 index = (!isRtl && isLeftPage) || (isRtl && !isLeftPage) ? lowerIndex : upperIndex; 1695 pivotX = isLeftPage ? rightBiasedPivot : leftBiasedPivot; 1696 1697 CellLayout cl = (CellLayout) getChildAt(index); 1698 float scrollProgress = getScrollProgress(screenCenter, cl, index); 1699 cl.setOverScrollAmount(Math.abs(scrollProgress), isLeftPage); 1700 float rotation = -WORKSPACE_OVERSCROLL_ROTATION * scrollProgress; 1701 cl.setRotationY(rotation); 1702 1703 if (!mOverscrollTransformsSet || Float.compare(mLastOverscrollPivotX, pivotX) != 0) { 1704 mOverscrollTransformsSet = true; 1705 mLastOverscrollPivotX = pivotX; 1706 cl.setCameraDistance(mDensity * mCameraDistance); 1707 cl.setPivotX(cl.getMeasuredWidth() * pivotX); 1708 cl.setPivotY(cl.getMeasuredHeight() * 0.5f); 1709 cl.setOverscrollTransformsDirty(true); 1710 } 1711 } else { 1712 if (mOverscrollTransformsSet && getChildCount() > 0) { 1713 mOverscrollTransformsSet = false; 1714 ((CellLayout) getChildAt(0)).resetOverscrollTransforms(); 1715 ((CellLayout) getChildAt(getChildCount() - 1)).resetOverscrollTransforms(); 1716 } 1717 } 1718 } 1719 1720 @Override 1721 protected void overScroll(float amount) { 1722 acceleratedOverScroll(amount); 1723 } 1724 1725 protected void onAttachedToWindow() { 1726 super.onAttachedToWindow(); 1727 mWindowToken = getWindowToken(); 1728 computeScroll(); 1729 mDragController.setWindowToken(mWindowToken); 1730 } 1731 1732 protected void onDetachedFromWindow() { 1733 super.onDetachedFromWindow(); 1734 mWindowToken = null; 1735 } 1736 1737 protected void onResume() { 1738 if (getPageIndicator() != null) { 1739 // In case accessibility state has changed, we need to perform this on every 1740 // attach to window 1741 OnClickListener listener = getPageIndicatorClickListener(); 1742 if (listener != null) { 1743 getPageIndicator().setOnClickListener(listener); 1744 } 1745 } 1746 AccessibilityManager am = (AccessibilityManager) 1747 getContext().getSystemService(Context.ACCESSIBILITY_SERVICE); 1748 sAccessibilityEnabled = am.isEnabled(); 1749 1750 // Update wallpaper dimensions if they were changed since last onResume 1751 // (we also always set the wallpaper dimensions in the constructor) 1752 if (LauncherAppState.getInstance().hasWallpaperChangedSinceLastCheck()) { 1753 setWallpaperDimension(); 1754 } 1755 mWallpaperIsLiveWallpaper = mWallpaperManager.getWallpaperInfo() != null; 1756 // Force the wallpaper offset steps to be set again, because another app might have changed 1757 // them 1758 mLastSetWallpaperOffsetSteps = 0f; 1759 } 1760 1761 @Override 1762 protected void onLayout(boolean changed, int left, int top, int right, int bottom) { 1763 if (mFirstLayout && mCurrentPage >= 0 && mCurrentPage < getChildCount()) { 1764 mWallpaperOffset.syncWithScroll(); 1765 mWallpaperOffset.jumpToFinal(); 1766 } 1767 super.onLayout(changed, left, top, right, bottom); 1768 } 1769 1770 @Override 1771 protected void onDraw(Canvas canvas) { 1772 super.onDraw(canvas); 1773 1774 // Call back to LauncherModel to finish binding after the first draw 1775 post(mBindPages); 1776 } 1777 1778 @Override 1779 protected boolean onRequestFocusInDescendants(int direction, Rect previouslyFocusedRect) { 1780 if (!mLauncher.isAllAppsVisible()) { 1781 final Folder openFolder = getOpenFolder(); 1782 if (openFolder != null) { 1783 return openFolder.requestFocus(direction, previouslyFocusedRect); 1784 } else { 1785 return super.onRequestFocusInDescendants(direction, previouslyFocusedRect); 1786 } 1787 } 1788 return false; 1789 } 1790 1791 @Override 1792 public int getDescendantFocusability() { 1793 if (workspaceInModalState()) { 1794 return ViewGroup.FOCUS_BLOCK_DESCENDANTS; 1795 } 1796 return super.getDescendantFocusability(); 1797 } 1798 1799 @Override 1800 public void addFocusables(ArrayList<View> views, int direction, int focusableMode) { 1801 if (!mLauncher.isAllAppsVisible()) { 1802 final Folder openFolder = getOpenFolder(); 1803 if (openFolder != null) { 1804 openFolder.addFocusables(views, direction); 1805 } else { 1806 super.addFocusables(views, direction, focusableMode); 1807 } 1808 } 1809 } 1810 1811 public boolean workspaceInModalState() { 1812 return mState != State.NORMAL; 1813 } 1814 1815 void enableChildrenCache(int fromPage, int toPage) { 1816 if (fromPage > toPage) { 1817 final int temp = fromPage; 1818 fromPage = toPage; 1819 toPage = temp; 1820 } 1821 1822 final int screenCount = getChildCount(); 1823 1824 fromPage = Math.max(fromPage, 0); 1825 toPage = Math.min(toPage, screenCount - 1); 1826 1827 for (int i = fromPage; i <= toPage; i++) { 1828 final CellLayout layout = (CellLayout) getChildAt(i); 1829 layout.setChildrenDrawnWithCacheEnabled(true); 1830 layout.setChildrenDrawingCacheEnabled(true); 1831 } 1832 } 1833 1834 void clearChildrenCache() { 1835 final int screenCount = getChildCount(); 1836 for (int i = 0; i < screenCount; i++) { 1837 final CellLayout layout = (CellLayout) getChildAt(i); 1838 layout.setChildrenDrawnWithCacheEnabled(false); 1839 // In software mode, we don't want the items to continue to be drawn into bitmaps 1840 if (!isHardwareAccelerated()) { 1841 layout.setChildrenDrawingCacheEnabled(false); 1842 } 1843 } 1844 } 1845 1846 private void updateChildrenLayersEnabled(boolean force) { 1847 boolean small = mState == State.OVERVIEW || mIsSwitchingState; 1848 boolean enableChildrenLayers = force || small || mAnimatingViewIntoPlace || isPageMoving(); 1849 1850 if (enableChildrenLayers != mChildrenLayersEnabled) { 1851 mChildrenLayersEnabled = enableChildrenLayers; 1852 if (mChildrenLayersEnabled) { 1853 enableHwLayersOnVisiblePages(); 1854 } else { 1855 for (int i = 0; i < getPageCount(); i++) { 1856 final CellLayout cl = (CellLayout) getChildAt(i); 1857 cl.enableHardwareLayer(false); 1858 } 1859 } 1860 } 1861 } 1862 1863 private void enableHwLayersOnVisiblePages() { 1864 if (mChildrenLayersEnabled) { 1865 final int screenCount = getChildCount(); 1866 getVisiblePages(mTempVisiblePagesRange); 1867 int leftScreen = mTempVisiblePagesRange[0]; 1868 int rightScreen = mTempVisiblePagesRange[1]; 1869 if (leftScreen == rightScreen) { 1870 // make sure we're caching at least two pages always 1871 if (rightScreen < screenCount - 1) { 1872 rightScreen++; 1873 } else if (leftScreen > 0) { 1874 leftScreen--; 1875 } 1876 } 1877 1878 final CellLayout customScreen = mWorkspaceScreens.get(CUSTOM_CONTENT_SCREEN_ID); 1879 for (int i = 0; i < screenCount; i++) { 1880 final CellLayout layout = (CellLayout) getPageAt(i); 1881 1882 // enable layers between left and right screen inclusive, except for the 1883 // customScreen, which may animate its content during transitions. 1884 boolean enableLayer = layout != customScreen && 1885 leftScreen <= i && i <= rightScreen && shouldDrawChild(layout); 1886 layout.enableHardwareLayer(enableLayer); 1887 } 1888 } 1889 } 1890 1891 public void buildPageHardwareLayers() { 1892 // force layers to be enabled just for the call to buildLayer 1893 updateChildrenLayersEnabled(true); 1894 if (getWindowToken() != null) { 1895 final int childCount = getChildCount(); 1896 for (int i = 0; i < childCount; i++) { 1897 CellLayout cl = (CellLayout) getChildAt(i); 1898 cl.buildHardwareLayer(); 1899 } 1900 } 1901 updateChildrenLayersEnabled(false); 1902 } 1903 1904 protected void onWallpaperTap(MotionEvent ev) { 1905 final int[] position = mTempCell; 1906 getLocationOnScreen(position); 1907 1908 int pointerIndex = ev.getActionIndex(); 1909 position[0] += (int) ev.getX(pointerIndex); 1910 position[1] += (int) ev.getY(pointerIndex); 1911 1912 mWallpaperManager.sendWallpaperCommand(getWindowToken(), 1913 ev.getAction() == MotionEvent.ACTION_UP 1914 ? WallpaperManager.COMMAND_TAP : WallpaperManager.COMMAND_SECONDARY_TAP, 1915 position[0], position[1], 0, null); 1916 } 1917 1918 /* 1919 * This interpolator emulates the rate at which the perceived scale of an object changes 1920 * as its distance from a camera increases. When this interpolator is applied to a scale 1921 * animation on a view, it evokes the sense that the object is shrinking due to moving away 1922 * from the camera. 1923 */ 1924 static class ZInterpolator implements TimeInterpolator { 1925 private float focalLength; 1926 1927 public ZInterpolator(float foc) { 1928 focalLength = foc; 1929 } 1930 1931 public float getInterpolation(float input) { 1932 return (1.0f - focalLength / (focalLength + input)) / 1933 (1.0f - focalLength / (focalLength + 1.0f)); 1934 } 1935 } 1936 1937 /* 1938 * The exact reverse of ZInterpolator. 1939 */ 1940 static class InverseZInterpolator implements TimeInterpolator { 1941 private ZInterpolator zInterpolator; 1942 public InverseZInterpolator(float foc) { 1943 zInterpolator = new ZInterpolator(foc); 1944 } 1945 public float getInterpolation(float input) { 1946 return 1 - zInterpolator.getInterpolation(1 - input); 1947 } 1948 } 1949 1950 /* 1951 * ZInterpolator compounded with an ease-out. 1952 */ 1953 static class ZoomOutInterpolator implements TimeInterpolator { 1954 private final DecelerateInterpolator decelerate = new DecelerateInterpolator(0.75f); 1955 private final ZInterpolator zInterpolator = new ZInterpolator(0.13f); 1956 1957 public float getInterpolation(float input) { 1958 return decelerate.getInterpolation(zInterpolator.getInterpolation(input)); 1959 } 1960 } 1961 1962 /* 1963 * InvereZInterpolator compounded with an ease-out. 1964 */ 1965 static class ZoomInInterpolator implements TimeInterpolator { 1966 private final InverseZInterpolator inverseZInterpolator = new InverseZInterpolator(0.35f); 1967 private final DecelerateInterpolator decelerate = new DecelerateInterpolator(3.0f); 1968 1969 public float getInterpolation(float input) { 1970 return decelerate.getInterpolation(inverseZInterpolator.getInterpolation(input)); 1971 } 1972 } 1973 1974 private final ZoomInInterpolator mZoomInInterpolator = new ZoomInInterpolator(); 1975 1976 /* 1977 * 1978 * We call these methods (onDragStartedWithItemSpans/onDragStartedWithSize) whenever we 1979 * start a drag in Launcher, regardless of whether the drag has ever entered the Workspace 1980 * 1981 * These methods mark the appropriate pages as accepting drops (which alters their visual 1982 * appearance). 1983 * 1984 */ 1985 public void onDragStartedWithItem(View v) { 1986 final Canvas canvas = new Canvas(); 1987 1988 // The outline is used to visualize where the item will land if dropped 1989 mDragOutline = createDragOutline(v, canvas, DRAG_BITMAP_PADDING); 1990 } 1991 1992 private Rect getDrawableBounds(Drawable d) { 1993 Rect bounds = new Rect(); 1994 d.copyBounds(bounds); 1995 if (bounds.width() == 0 || bounds.height() == 0) { 1996 bounds.set(0, 0, d.getIntrinsicWidth(), d.getIntrinsicHeight()); 1997 } 1998 return bounds; 1999 } 2000 2001 public void onExternalDragStartedWithItem(View v) { 2002 final Canvas canvas = new Canvas(); 2003 2004 // Compose a drag bitmap with the view scaled to the icon size 2005 LauncherAppState app = LauncherAppState.getInstance(); 2006 DeviceProfile grid = app.getDynamicGrid().getDeviceProfile(); 2007 int iconSize = grid.iconSizePx; 2008 int bmpWidth = v.getMeasuredWidth(); 2009 int bmpHeight = v.getMeasuredHeight(); 2010 2011 // If this is a text view, use its drawable instead 2012 if (v instanceof TextView) { 2013 TextView tv = (TextView) v; 2014 Drawable d = tv.getCompoundDrawables()[1]; 2015 Rect bounds = getDrawableBounds(d); 2016 bmpWidth = bounds.width(); 2017 bmpHeight = bounds.height(); 2018 } 2019 2020 // Compose the bitmap to create the icon from 2021 Bitmap b = Bitmap.createBitmap(bmpWidth, bmpHeight, 2022 Bitmap.Config.ARGB_8888); 2023 Canvas c = new Canvas(b); 2024 drawDragView(v, c, 0, true); 2025 c.setBitmap(null); 2026 2027 // The outline is used to visualize where the item will land if dropped 2028 mDragOutline = createDragOutline(b, canvas, DRAG_BITMAP_PADDING, iconSize, iconSize, true); 2029 } 2030 2031 public void onDragStartedWithItem(PendingAddItemInfo info, Bitmap b, boolean clipAlpha) { 2032 final Canvas canvas = new Canvas(); 2033 2034 int[] size = estimateItemSize(info.spanX, info.spanY, info, false); 2035 2036 // The outline is used to visualize where the item will land if dropped 2037 mDragOutline = createDragOutline(b, canvas, DRAG_BITMAP_PADDING, size[0], 2038 size[1], clipAlpha); 2039 } 2040 2041 public void exitWidgetResizeMode() { 2042 DragLayer dragLayer = mLauncher.getDragLayer(); 2043 dragLayer.clearAllResizeFrames(); 2044 } 2045 2046 private void initAnimationArrays() { 2047 final int childCount = getChildCount(); 2048 if (mLastChildCount == childCount) return; 2049 2050 mOldBackgroundAlphas = new float[childCount]; 2051 mOldAlphas = new float[childCount]; 2052 mNewBackgroundAlphas = new float[childCount]; 2053 mNewAlphas = new float[childCount]; 2054 } 2055 2056 Animator getChangeStateAnimation(final State state, boolean animated) { 2057 return getChangeStateAnimation(state, animated, 0, -1); 2058 } 2059 2060 @Override 2061 protected void getFreeScrollPageRange(int[] range) { 2062 getOverviewModePages(range); 2063 } 2064 2065 private void getOverviewModePages(int[] range) { 2066 int start = numCustomPages(); 2067 int end = getChildCount() - 1; 2068 2069 range[0] = Math.max(0, Math.min(start, getChildCount() - 1)); 2070 range[1] = Math.max(0, end); 2071 } 2072 2073 protected void onStartReordering() { 2074 super.onStartReordering(); 2075 showOutlines(); 2076 // Reordering handles its own animations, disable the automatic ones. 2077 disableLayoutTransitions(); 2078 } 2079 2080 protected void onEndReordering() { 2081 super.onEndReordering(); 2082 2083 if (mLauncher.isWorkspaceLoading()) { 2084 // Invalid and dangerous operation if workspace is loading 2085 return; 2086 } 2087 2088 hideOutlines(); 2089 mScreenOrder.clear(); 2090 int count = getChildCount(); 2091 for (int i = 0; i < count; i++) { 2092 CellLayout cl = ((CellLayout) getChildAt(i)); 2093 mScreenOrder.add(getIdForScreen(cl)); 2094 } 2095 2096 mLauncher.getModel().updateWorkspaceScreenOrder(mLauncher, mScreenOrder); 2097 2098 // Re-enable auto layout transitions for page deletion. 2099 enableLayoutTransitions(); 2100 } 2101 2102 public boolean isInOverviewMode() { 2103 return mState == State.OVERVIEW; 2104 } 2105 2106 public boolean enterOverviewMode() { 2107 if (mTouchState != TOUCH_STATE_REST) { 2108 return false; 2109 } 2110 enableOverviewMode(true, -1, true); 2111 return true; 2112 } 2113 2114 public void exitOverviewMode(boolean animated) { 2115 exitOverviewMode(-1, animated); 2116 } 2117 2118 public void exitOverviewMode(int snapPage, boolean animated) { 2119 enableOverviewMode(false, snapPage, animated); 2120 } 2121 2122 private void enableOverviewMode(boolean enable, int snapPage, boolean animated) { 2123 State finalState = Workspace.State.OVERVIEW; 2124 if (!enable) { 2125 finalState = Workspace.State.NORMAL; 2126 } 2127 2128 Animator workspaceAnim = getChangeStateAnimation(finalState, animated, 0, snapPage); 2129 if (workspaceAnim != null) { 2130 onTransitionPrepare(); 2131 workspaceAnim.addListener(new AnimatorListenerAdapter() { 2132 @Override 2133 public void onAnimationEnd(Animator arg0) { 2134 onTransitionEnd(); 2135 } 2136 }); 2137 workspaceAnim.start(); 2138 } 2139 } 2140 2141 int getOverviewModeTranslationY() { 2142 LauncherAppState app = LauncherAppState.getInstance(); 2143 DeviceProfile grid = app.getDynamicGrid().getDeviceProfile(); 2144 Rect overviewBar = grid.getOverviewModeButtonBarRect(); 2145 2146 int availableHeight = getViewportHeight(); 2147 int scaledHeight = (int) (mOverviewModeShrinkFactor * getNormalChildHeight()); 2148 int offsetFromTopEdge = (availableHeight - scaledHeight) / 2; 2149 int offsetToCenterInOverview = (availableHeight - mInsets.top - overviewBar.height() 2150 - scaledHeight) / 2; 2151 2152 return -offsetFromTopEdge + mInsets.top + offsetToCenterInOverview; 2153 } 2154 2155 boolean shouldVoiceButtonProxyBeVisible() { 2156 if (isOnOrMovingToCustomContent()) { 2157 return false; 2158 } 2159 if (mState != State.NORMAL) { 2160 return false; 2161 } 2162 return true; 2163 } 2164 2165 public void updateInteractionForState() { 2166 if (mState != State.NORMAL) { 2167 mLauncher.onInteractionBegin(); 2168 } else { 2169 mLauncher.onInteractionEnd(); 2170 } 2171 } 2172 2173 private void setState(State state) { 2174 mState = state; 2175 updateInteractionForState(); 2176 updateAccessibilityFlags(); 2177 } 2178 2179 State getState() { 2180 return mState; 2181 } 2182 2183 private void updateAccessibilityFlags() { 2184 int accessible = mState == State.NORMAL ? 2185 ViewCompat.IMPORTANT_FOR_ACCESSIBILITY_YES : 2186 ViewCompat.IMPORTANT_FOR_ACCESSIBILITY_NO_HIDE_DESCENDANTS; 2187 setImportantForAccessibility(accessible); 2188 } 2189 2190 private static final int HIDE_WORKSPACE_DURATION = 100; 2191 2192 Animator getChangeStateAnimation(final State state, boolean animated, int delay, int snapPage) { 2193 if (mState == state) { 2194 return null; 2195 } 2196 2197 // Initialize animation arrays for the first time if necessary 2198 initAnimationArrays(); 2199 2200 AnimatorSet anim = animated ? LauncherAnimUtils.createAnimatorSet() : null; 2201 2202 final State oldState = mState; 2203 final boolean oldStateIsNormal = (oldState == State.NORMAL); 2204 final boolean oldStateIsSpringLoaded = (oldState == State.SPRING_LOADED); 2205 final boolean oldStateIsNormalHidden = (oldState == State.NORMAL_HIDDEN); 2206 final boolean oldStateIsOverviewHidden = (oldState == State.OVERVIEW_HIDDEN); 2207 final boolean oldStateIsOverview = (oldState == State.OVERVIEW); 2208 setState(state); 2209 final boolean stateIsNormal = (state == State.NORMAL); 2210 final boolean stateIsSpringLoaded = (state == State.SPRING_LOADED); 2211 final boolean stateIsNormalHidden = (state == State.NORMAL_HIDDEN); 2212 final boolean stateIsOverviewHidden = (state == State.OVERVIEW_HIDDEN); 2213 final boolean stateIsOverview = (state == State.OVERVIEW); 2214 float finalBackgroundAlpha = (stateIsSpringLoaded || stateIsOverview) ? 1.0f : 0f; 2215 float finalHotseatAndPageIndicatorAlpha = (stateIsNormal || stateIsSpringLoaded) ? 1f : 0f; 2216 float finalOverviewPanelAlpha = stateIsOverview ? 1f : 0f; 2217 float finalSearchBarAlpha = !stateIsNormal ? 0f : 1f; 2218 float finalWorkspaceTranslationY = stateIsOverview || stateIsOverviewHidden ? 2219 getOverviewModeTranslationY() : 0; 2220 2221 boolean workspaceToAllApps = (oldStateIsNormal && stateIsNormalHidden); 2222 boolean overviewToAllApps = (oldStateIsOverview && stateIsOverviewHidden); 2223 boolean allAppsToWorkspace = (stateIsNormalHidden && stateIsNormal); 2224 boolean workspaceToOverview = (oldStateIsNormal && stateIsOverview); 2225 boolean overviewToWorkspace = (oldStateIsOverview && stateIsNormal); 2226 2227 mNewScale = 1.0f; 2228 2229 if (oldStateIsOverview) { 2230 disableFreeScroll(); 2231 } else if (stateIsOverview) { 2232 enableFreeScroll(); 2233 } 2234 2235 if (state != State.NORMAL) { 2236 if (stateIsSpringLoaded) { 2237 mNewScale = mSpringLoadedShrinkFactor; 2238 } else if (stateIsOverview || stateIsOverviewHidden) { 2239 mNewScale = mOverviewModeShrinkFactor; 2240 } 2241 if (workspaceToAllApps) { 2242 updateChildrenLayersEnabled(false); 2243 } 2244 } 2245 2246 final int duration; 2247 if (workspaceToAllApps || overviewToAllApps) { 2248 duration = HIDE_WORKSPACE_DURATION; //getResources().getInteger(R.integer.config_workspaceUnshrinkTime); 2249 } else if (workspaceToOverview || overviewToWorkspace) { 2250 duration = getResources().getInteger(R.integer.config_overviewTransitionTime); 2251 } else { 2252 duration = getResources().getInteger(R.integer.config_appsCustomizeWorkspaceShrinkTime); 2253 } 2254 2255 if (snapPage == -1) { 2256 snapPage = getPageNearestToCenterOfScreen(); 2257 } 2258 snapToPage(snapPage, duration, mZoomInInterpolator); 2259 2260 for (int i = 0; i < getChildCount(); i++) { 2261 final CellLayout cl = (CellLayout) getChildAt(i); 2262 boolean isCurrentPage = (i == snapPage); 2263 float initialAlpha = cl.getShortcutsAndWidgets().getAlpha(); 2264 float finalAlpha; 2265 if (stateIsNormalHidden || stateIsOverviewHidden) { 2266 finalAlpha = 0f; 2267 } else if (stateIsNormal && mWorkspaceFadeInAdjacentScreens) { 2268 finalAlpha = (i == snapPage || i < numCustomPages()) ? 1f : 0f; 2269 } else { 2270 finalAlpha = 1f; 2271 } 2272 2273 // If we are animating to/from the small state, then hide the side pages and fade the 2274 // current page in 2275 if (!mIsSwitchingState) { 2276 if (workspaceToAllApps || allAppsToWorkspace) { 2277 if (allAppsToWorkspace && isCurrentPage) { 2278 initialAlpha = 0f; 2279 } else if (!isCurrentPage) { 2280 initialAlpha = finalAlpha = 0f; 2281 } 2282 cl.setShortcutAndWidgetAlpha(initialAlpha); 2283 } 2284 } 2285 2286 mOldAlphas[i] = initialAlpha; 2287 mNewAlphas[i] = finalAlpha; 2288 if (animated) { 2289 mOldBackgroundAlphas[i] = cl.getBackgroundAlpha(); 2290 mNewBackgroundAlphas[i] = finalBackgroundAlpha; 2291 } else { 2292 cl.setBackgroundAlpha(finalBackgroundAlpha); 2293 cl.setShortcutAndWidgetAlpha(finalAlpha); 2294 } 2295 } 2296 2297 final View searchBar = mLauncher.getQsbBar(); 2298 final View overviewPanel = mLauncher.getOverviewPanel(); 2299 final View hotseat = mLauncher.getHotseat(); 2300 final View pageIndicator = getPageIndicator(); 2301 if (animated) { 2302 LauncherViewPropertyAnimator scale = new LauncherViewPropertyAnimator(this); 2303 scale.scaleX(mNewScale) 2304 .scaleY(mNewScale) 2305 .translationY(finalWorkspaceTranslationY) 2306 .setDuration(duration) 2307 .setInterpolator(mZoomInInterpolator); 2308 anim.play(scale); 2309 for (int index = 0; index < getChildCount(); index++) { 2310 final int i = index; 2311 final CellLayout cl = (CellLayout) getChildAt(i); 2312 float currentAlpha = cl.getShortcutsAndWidgets().getAlpha(); 2313 if (mOldAlphas[i] == 0 && mNewAlphas[i] == 0) { 2314 cl.setBackgroundAlpha(mNewBackgroundAlphas[i]); 2315 cl.setShortcutAndWidgetAlpha(mNewAlphas[i]); 2316 } else { 2317 if (mOldAlphas[i] != mNewAlphas[i] || currentAlpha != mNewAlphas[i]) { 2318 LauncherViewPropertyAnimator alphaAnim = 2319 new LauncherViewPropertyAnimator(cl.getShortcutsAndWidgets()); 2320 alphaAnim.alpha(mNewAlphas[i]) 2321 .setDuration(duration) 2322 .setInterpolator(mZoomInInterpolator); 2323 anim.play(alphaAnim); 2324 } 2325 if (mOldBackgroundAlphas[i] != 0 || 2326 mNewBackgroundAlphas[i] != 0) { 2327 ValueAnimator bgAnim = 2328 LauncherAnimUtils.ofFloat(cl, 0f, 1f); 2329 bgAnim.setInterpolator(mZoomInInterpolator); 2330 bgAnim.setDuration(duration); 2331 bgAnim.addUpdateListener(new LauncherAnimatorUpdateListener() { 2332 public void onAnimationUpdate(float a, float b) { 2333 cl.setBackgroundAlpha( 2334 a * mOldBackgroundAlphas[i] + 2335 b * mNewBackgroundAlphas[i]); 2336 } 2337 }); 2338 anim.play(bgAnim); 2339 } 2340 } 2341 } 2342 Animator pageIndicatorAlpha = null; 2343 if (pageIndicator != null) { 2344 pageIndicatorAlpha = new LauncherViewPropertyAnimator(pageIndicator) 2345 .alpha(finalHotseatAndPageIndicatorAlpha).withLayer(); 2346 pageIndicatorAlpha.addListener(new AlphaUpdateListener(pageIndicator)); 2347 } else { 2348 // create a dummy animation so we don't need to do null checks later 2349 pageIndicatorAlpha = ValueAnimator.ofFloat(0, 0); 2350 } 2351 2352 Animator hotseatAlpha = new LauncherViewPropertyAnimator(hotseat) 2353 .alpha(finalHotseatAndPageIndicatorAlpha).withLayer(); 2354 hotseatAlpha.addListener(new AlphaUpdateListener(hotseat)); 2355 2356 Animator searchBarAlpha = new LauncherViewPropertyAnimator(searchBar) 2357 .alpha(finalSearchBarAlpha).withLayer(); 2358 searchBarAlpha.addListener(new AlphaUpdateListener(searchBar)); 2359 2360 Animator overviewPanelAlpha = new LauncherViewPropertyAnimator(overviewPanel) 2361 .alpha(finalOverviewPanelAlpha).withLayer(); 2362 overviewPanelAlpha.addListener(new AlphaUpdateListener(overviewPanel)); 2363 2364 if (workspaceToOverview) { 2365 pageIndicatorAlpha.setInterpolator(new DecelerateInterpolator(2)); 2366 hotseatAlpha.setInterpolator(new DecelerateInterpolator(2)); 2367 overviewPanelAlpha.setInterpolator(null); 2368 } else if (overviewToWorkspace) { 2369 pageIndicatorAlpha.setInterpolator(null); 2370 hotseatAlpha.setInterpolator(null); 2371 overviewPanelAlpha.setInterpolator(new DecelerateInterpolator(2)); 2372 } 2373 2374 overviewPanelAlpha.setDuration(duration); 2375 pageIndicatorAlpha.setDuration(duration); 2376 hotseatAlpha.setDuration(duration); 2377 searchBarAlpha.setDuration(duration); 2378 2379 anim.play(overviewPanelAlpha); 2380 anim.play(hotseatAlpha); 2381 anim.play(searchBarAlpha); 2382 anim.play(pageIndicatorAlpha); 2383 anim.setStartDelay(delay); 2384 } else { 2385 overviewPanel.setAlpha(finalOverviewPanelAlpha); 2386 AlphaUpdateListener.updateVisibility(overviewPanel); 2387 hotseat.setAlpha(finalHotseatAndPageIndicatorAlpha); 2388 AlphaUpdateListener.updateVisibility(hotseat); 2389 if (pageIndicator != null) { 2390 pageIndicator.setAlpha(finalHotseatAndPageIndicatorAlpha); 2391 AlphaUpdateListener.updateVisibility(pageIndicator); 2392 } 2393 searchBar.setAlpha(finalSearchBarAlpha); 2394 AlphaUpdateListener.updateVisibility(searchBar); 2395 updateCustomContentVisibility(); 2396 setScaleX(mNewScale); 2397 setScaleY(mNewScale); 2398 setTranslationY(finalWorkspaceTranslationY); 2399 } 2400 mLauncher.updateVoiceButtonProxyVisible(false); 2401 2402 if (stateIsNormal) { 2403 animateBackgroundGradient(0f, animated); 2404 } else { 2405 animateBackgroundGradient(getResources().getInteger( 2406 R.integer.config_workspaceScrimAlpha) / 100f, animated); 2407 } 2408 return anim; 2409 } 2410 2411 static class AlphaUpdateListener implements AnimatorUpdateListener, AnimatorListener { 2412 View view; 2413 public AlphaUpdateListener(View v) { 2414 view = v; 2415 } 2416 2417 @Override 2418 public void onAnimationUpdate(ValueAnimator arg0) { 2419 updateVisibility(view); 2420 } 2421 2422 public static void updateVisibility(View view) { 2423 // We want to avoid the extra layout pass by setting the views to GONE unless 2424 // accessibility is on, in which case not setting them to GONE causes a glitch. 2425 int invisibleState = sAccessibilityEnabled ? GONE : INVISIBLE; 2426 if (view.getAlpha() < ALPHA_CUTOFF_THRESHOLD && view.getVisibility() != invisibleState) { 2427 view.setVisibility(invisibleState); 2428 } else if (view.getAlpha() > ALPHA_CUTOFF_THRESHOLD 2429 && view.getVisibility() != VISIBLE) { 2430 view.setVisibility(VISIBLE); 2431 } 2432 } 2433 2434 @Override 2435 public void onAnimationCancel(Animator arg0) { 2436 } 2437 2438 @Override 2439 public void onAnimationEnd(Animator arg0) { 2440 updateVisibility(view); 2441 } 2442 2443 @Override 2444 public void onAnimationRepeat(Animator arg0) { 2445 } 2446 2447 @Override 2448 public void onAnimationStart(Animator arg0) { 2449 // We want the views to be visible for animation, so fade-in/out is visible 2450 view.setVisibility(VISIBLE); 2451 } 2452 } 2453 2454 @Override 2455 public void onLauncherTransitionPrepare(Launcher l, boolean animated, boolean toWorkspace) { 2456 onTransitionPrepare(); 2457 } 2458 2459 @Override 2460 public void onLauncherTransitionStart(Launcher l, boolean animated, boolean toWorkspace) { 2461 } 2462 2463 @Override 2464 public void onLauncherTransitionStep(Launcher l, float t) { 2465 mTransitionProgress = t; 2466 } 2467 2468 @Override 2469 public void onLauncherTransitionEnd(Launcher l, boolean animated, boolean toWorkspace) { 2470 onTransitionEnd(); 2471 } 2472 2473 private void onTransitionPrepare() { 2474 mIsSwitchingState = true; 2475 2476 // Invalidate here to ensure that the pages are rendered during the state change transition. 2477 invalidate(); 2478 2479 updateChildrenLayersEnabled(false); 2480 hideCustomContentIfNecessary(); 2481 } 2482 2483 void updateCustomContentVisibility() { 2484 int visibility = mState == Workspace.State.NORMAL ? VISIBLE : INVISIBLE; 2485 if (hasCustomContent()) { 2486 mWorkspaceScreens.get(CUSTOM_CONTENT_SCREEN_ID).setVisibility(visibility); 2487 } 2488 } 2489 2490 void showCustomContentIfNecessary() { 2491 boolean show = mState == Workspace.State.NORMAL; 2492 if (show && hasCustomContent()) { 2493 mWorkspaceScreens.get(CUSTOM_CONTENT_SCREEN_ID).setVisibility(VISIBLE); 2494 } 2495 } 2496 2497 void hideCustomContentIfNecessary() { 2498 boolean hide = mState != Workspace.State.NORMAL; 2499 if (hide && hasCustomContent()) { 2500 disableLayoutTransitions(); 2501 mWorkspaceScreens.get(CUSTOM_CONTENT_SCREEN_ID).setVisibility(INVISIBLE); 2502 enableLayoutTransitions(); 2503 } 2504 } 2505 2506 private void onTransitionEnd() { 2507 mIsSwitchingState = false; 2508 updateChildrenLayersEnabled(false); 2509 // The code in getChangeStateAnimation to determine initialAlpha and finalAlpha will ensure 2510 // ensure that only the current page is visible during (and subsequently, after) the 2511 // transition animation. If fade adjacent pages is disabled, then re-enable the page 2512 // visibility after the transition animation. 2513 if (!mWorkspaceFadeInAdjacentScreens) { 2514 for (int i = 0; i < getChildCount(); i++) { 2515 final CellLayout cl = (CellLayout) getChildAt(i); 2516 cl.setShortcutAndWidgetAlpha(1f); 2517 } 2518 } else { 2519 for (int i = 0; i < numCustomPages(); i++) { 2520 final CellLayout cl = (CellLayout) getChildAt(i); 2521 cl.setShortcutAndWidgetAlpha(1f); 2522 } 2523 } 2524 showCustomContentIfNecessary(); 2525 } 2526 2527 @Override 2528 public View getContent() { 2529 return this; 2530 } 2531 2532 /** 2533 * Draw the View v into the given Canvas. 2534 * 2535 * @param v the view to draw 2536 * @param destCanvas the canvas to draw on 2537 * @param padding the horizontal and vertical padding to use when drawing 2538 */ 2539 private void drawDragView(View v, Canvas destCanvas, int padding, boolean pruneToDrawable) { 2540 final Rect clipRect = mTempRect; 2541 v.getDrawingRect(clipRect); 2542 2543 boolean textVisible = false; 2544 2545 destCanvas.save(); 2546 if (v instanceof TextView && pruneToDrawable) { 2547 Drawable d = ((TextView) v).getCompoundDrawables()[1]; 2548 Rect bounds = getDrawableBounds(d); 2549 clipRect.set(0, 0, bounds.width() + padding, bounds.height() + padding); 2550 destCanvas.translate(padding / 2, padding / 2); 2551 d.draw(destCanvas); 2552 } else { 2553 if (v instanceof FolderIcon) { 2554 // For FolderIcons the text can bleed into the icon area, and so we need to 2555 // hide the text completely (which can't be achieved by clipping). 2556 if (((FolderIcon) v).getTextVisible()) { 2557 ((FolderIcon) v).setTextVisible(false); 2558 textVisible = true; 2559 } 2560 } else if (v instanceof BubbleTextView) { 2561 final BubbleTextView tv = (BubbleTextView) v; 2562 clipRect.bottom = tv.getExtendedPaddingTop() - (int) BubbleTextView.PADDING_V + 2563 tv.getLayout().getLineTop(0); 2564 } else if (v instanceof TextView) { 2565 final TextView tv = (TextView) v; 2566 clipRect.bottom = tv.getExtendedPaddingTop() - tv.getCompoundDrawablePadding() + 2567 tv.getLayout().getLineTop(0); 2568 } 2569 destCanvas.translate(-v.getScrollX() + padding / 2, -v.getScrollY() + padding / 2); 2570 destCanvas.clipRect(clipRect, Op.REPLACE); 2571 v.draw(destCanvas); 2572 2573 // Restore text visibility of FolderIcon if necessary 2574 if (textVisible) { 2575 ((FolderIcon) v).setTextVisible(true); 2576 } 2577 } 2578 destCanvas.restore(); 2579 } 2580 2581 /** 2582 * Returns a new bitmap to show when the given View is being dragged around. 2583 * Responsibility for the bitmap is transferred to the caller. 2584 */ 2585 public Bitmap createDragBitmap(View v, Canvas canvas, int padding) { 2586 Bitmap b; 2587 2588 if (v instanceof TextView) { 2589 Drawable d = ((TextView) v).getCompoundDrawables()[1]; 2590 Rect bounds = getDrawableBounds(d); 2591 b = Bitmap.createBitmap(bounds.width() + padding, 2592 bounds.height() + padding, Bitmap.Config.ARGB_8888); 2593 } else { 2594 b = Bitmap.createBitmap( 2595 v.getWidth() + padding, v.getHeight() + padding, Bitmap.Config.ARGB_8888); 2596 } 2597 2598 canvas.setBitmap(b); 2599 drawDragView(v, canvas, padding, true); 2600 canvas.setBitmap(null); 2601 2602 return b; 2603 } 2604 2605 /** 2606 * Returns a new bitmap to be used as the object outline, e.g. to visualize the drop location. 2607 * Responsibility for the bitmap is transferred to the caller. 2608 */ 2609 private Bitmap createDragOutline(View v, Canvas canvas, int padding) { 2610 final int outlineColor = getResources().getColor(R.color.outline_color); 2611 final Bitmap b = Bitmap.createBitmap( 2612 v.getWidth() + padding, v.getHeight() + padding, Bitmap.Config.ARGB_8888); 2613 2614 canvas.setBitmap(b); 2615 drawDragView(v, canvas, padding, true); 2616 mOutlineHelper.applyMediumExpensiveOutlineWithBlur(b, canvas, outlineColor, outlineColor); 2617 canvas.setBitmap(null); 2618 return b; 2619 } 2620 2621 /** 2622 * Returns a new bitmap to be used as the object outline, e.g. to visualize the drop location. 2623 * Responsibility for the bitmap is transferred to the caller. 2624 */ 2625 private Bitmap createDragOutline(Bitmap orig, Canvas canvas, int padding, int w, int h, 2626 boolean clipAlpha) { 2627 final int outlineColor = getResources().getColor(R.color.outline_color); 2628 final Bitmap b = Bitmap.createBitmap(w, h, Bitmap.Config.ARGB_8888); 2629 canvas.setBitmap(b); 2630 2631 Rect src = new Rect(0, 0, orig.getWidth(), orig.getHeight()); 2632 float scaleFactor = Math.min((w - padding) / (float) orig.getWidth(), 2633 (h - padding) / (float) orig.getHeight()); 2634 int scaledWidth = (int) (scaleFactor * orig.getWidth()); 2635 int scaledHeight = (int) (scaleFactor * orig.getHeight()); 2636 Rect dst = new Rect(0, 0, scaledWidth, scaledHeight); 2637 2638 // center the image 2639 dst.offset((w - scaledWidth) / 2, (h - scaledHeight) / 2); 2640 2641 canvas.drawBitmap(orig, src, dst, null); 2642 mOutlineHelper.applyMediumExpensiveOutlineWithBlur(b, canvas, outlineColor, outlineColor, 2643 clipAlpha); 2644 canvas.setBitmap(null); 2645 2646 return b; 2647 } 2648 2649 void startDrag(CellLayout.CellInfo cellInfo) { 2650 View child = cellInfo.cell; 2651 2652 // Make sure the drag was started by a long press as opposed to a long click. 2653 if (!child.isInTouchMode()) { 2654 return; 2655 } 2656 2657 mDragInfo = cellInfo; 2658 child.setVisibility(INVISIBLE); 2659 CellLayout layout = (CellLayout) child.getParent().getParent(); 2660 layout.prepareChildForDrag(child); 2661 2662 child.clearFocus(); 2663 child.setPressed(false); 2664 2665 final Canvas canvas = new Canvas(); 2666 2667 // The outline is used to visualize where the item will land if dropped 2668 mDragOutline = createDragOutline(child, canvas, DRAG_BITMAP_PADDING); 2669 beginDragShared(child, this); 2670 } 2671 2672 public void beginDragShared(View child, DragSource source) { 2673 mLauncher.onDragStarted(child); 2674 // The drag bitmap follows the touch point around on the screen 2675 final Bitmap b = createDragBitmap(child, new Canvas(), DRAG_BITMAP_PADDING); 2676 2677 final int bmpWidth = b.getWidth(); 2678 final int bmpHeight = b.getHeight(); 2679 2680 float scale = mLauncher.getDragLayer().getLocationInDragLayer(child, mTempXY); 2681 int dragLayerX = Math.round(mTempXY[0] - (bmpWidth - scale * child.getWidth()) / 2); 2682 int dragLayerY = Math.round(mTempXY[1] - (bmpHeight - scale * bmpHeight) / 2 2683 - DRAG_BITMAP_PADDING / 2); 2684 2685 LauncherAppState app = LauncherAppState.getInstance(); 2686 DeviceProfile grid = app.getDynamicGrid().getDeviceProfile(); 2687 Point dragVisualizeOffset = null; 2688 Rect dragRect = null; 2689 if (child instanceof BubbleTextView || child instanceof PagedViewIcon) { 2690 int iconSize = grid.iconSizePx; 2691 int top = child.getPaddingTop(); 2692 int left = (bmpWidth - iconSize) / 2; 2693 int right = left + iconSize; 2694 int bottom = top + iconSize; 2695 dragLayerY += top; 2696 // Note: The drag region is used to calculate drag layer offsets, but the 2697 // dragVisualizeOffset in addition to the dragRect (the size) to position the outline. 2698 dragVisualizeOffset = new Point(-DRAG_BITMAP_PADDING / 2, DRAG_BITMAP_PADDING / 2); 2699 dragRect = new Rect(left, top, right, bottom); 2700 } else if (child instanceof FolderIcon) { 2701 int previewSize = grid.folderIconSizePx; 2702 dragRect = new Rect(0, child.getPaddingTop(), child.getWidth(), previewSize); 2703 } 2704 2705 // Clear the pressed state if necessary 2706 if (child instanceof BubbleTextView) { 2707 BubbleTextView icon = (BubbleTextView) child; 2708 icon.clearPressedOrFocusedBackground(); 2709 } else if (child instanceof FolderIcon) { 2710 // The folder cling isn't flexible enough to be shown in non-default workspace positions 2711 // Also if they are dragging it a folder, we assume they don't need to see the cling. 2712 mLauncher.markFolderClingDismissedIfNecessary(); 2713 } 2714 2715 if (child.getTag() == null || !(child.getTag() instanceof ItemInfo)) { 2716 String msg = "Drag started with a view that has no tag set. This " 2717 + "will cause a crash (issue 11627249) down the line. " 2718 + "View: " + child + " tag: " + child.getTag(); 2719 throw new IllegalStateException(msg); 2720 } 2721 2722 DragView dv = mDragController.startDrag(b, dragLayerX, dragLayerY, source, child.getTag(), 2723 DragController.DRAG_ACTION_MOVE, dragVisualizeOffset, dragRect, scale); 2724 dv.setIntrinsicIconScaleFactor(source.getIntrinsicIconScaleFactor()); 2725 2726 if (child.getParent() instanceof ShortcutAndWidgetContainer) { 2727 mDragSourceInternal = (ShortcutAndWidgetContainer) child.getParent(); 2728 } 2729 2730 b.recycle(); 2731 } 2732 2733 public void beginExternalDragShared(View child, DragSource source) { 2734 LauncherAppState app = LauncherAppState.getInstance(); 2735 DeviceProfile grid = app.getDynamicGrid().getDeviceProfile(); 2736 int iconSize = grid.iconSizePx; 2737 2738 // Notify launcher of drag start 2739 mLauncher.onDragStarted(child); 2740 2741 // Compose a new drag bitmap that is of the icon size 2742 final Bitmap tmpB = createDragBitmap(child, new Canvas(), DRAG_BITMAP_PADDING); 2743 Bitmap b = Bitmap.createBitmap(iconSize, iconSize, Bitmap.Config.ARGB_8888); 2744 Paint p = new Paint(); 2745 p.setFilterBitmap(true); 2746 Canvas c = new Canvas(b); 2747 c.drawBitmap(tmpB, new Rect(0, 0, tmpB.getWidth(), tmpB.getHeight()), 2748 new Rect(0, 0, iconSize, iconSize), p); 2749 c.setBitmap(null); 2750 2751 // Find the child's location on the screen 2752 int bmpWidth = tmpB.getWidth(); 2753 float iconScale = (float) bmpWidth / iconSize; 2754 float scale = mLauncher.getDragLayer().getLocationInDragLayer(child, mTempXY) * iconScale; 2755 int dragLayerX = Math.round(mTempXY[0] - (bmpWidth - scale * child.getWidth()) / 2); 2756 int dragLayerY = Math.round(mTempXY[1]); 2757 2758 // Note: The drag region is used to calculate drag layer offsets, but the 2759 // dragVisualizeOffset in addition to the dragRect (the size) to position the outline. 2760 Point dragVisualizeOffset = new Point(-DRAG_BITMAP_PADDING / 2, DRAG_BITMAP_PADDING / 2); 2761 Rect dragRect = new Rect(0, 0, iconSize, iconSize); 2762 2763 if (child.getTag() == null || !(child.getTag() instanceof ItemInfo)) { 2764 String msg = "Drag started with a view that has no tag set. This " 2765 + "will cause a crash (issue 11627249) down the line. " 2766 + "View: " + child + " tag: " + child.getTag(); 2767 throw new IllegalStateException(msg); 2768 } 2769 2770 // Start the drag 2771 DragView dv = mDragController.startDrag(b, dragLayerX, dragLayerY, source, child.getTag(), 2772 DragController.DRAG_ACTION_MOVE, dragVisualizeOffset, dragRect, scale); 2773 dv.setIntrinsicIconScaleFactor(source.getIntrinsicIconScaleFactor()); 2774 2775 // Recycle temporary bitmaps 2776 tmpB.recycle(); 2777 } 2778 2779 void addApplicationShortcut(ShortcutInfo info, CellLayout target, long container, long screenId, 2780 int cellX, int cellY, boolean insertAtFirst, int intersectX, int intersectY) { 2781 View view = mLauncher.createShortcut(R.layout.application, target, (ShortcutInfo) info); 2782 2783 final int[] cellXY = new int[2]; 2784 target.findCellForSpanThatIntersects(cellXY, 1, 1, intersectX, intersectY); 2785 addInScreen(view, container, screenId, cellXY[0], cellXY[1], 1, 1, insertAtFirst); 2786 2787 LauncherModel.addOrMoveItemInDatabase(mLauncher, info, container, screenId, cellXY[0], 2788 cellXY[1]); 2789 } 2790 2791 public boolean transitionStateShouldAllowDrop() { 2792 return ((!isSwitchingState() || mTransitionProgress > 0.5f) && 2793 (mState == State.NORMAL || mState == State.SPRING_LOADED)); 2794 } 2795 2796 /** 2797 * {@inheritDoc} 2798 */ 2799 public boolean acceptDrop(DragObject d) { 2800 // If it's an external drop (e.g. from All Apps), check if it should be accepted 2801 CellLayout dropTargetLayout = mDropToLayout; 2802 if (d.dragSource != this) { 2803 // Don't accept the drop if we're not over a screen at time of drop 2804 if (dropTargetLayout == null) { 2805 return false; 2806 } 2807 if (!transitionStateShouldAllowDrop()) return false; 2808 2809 mDragViewVisualCenter = getDragViewVisualCenter(d.x, d.y, d.xOffset, d.yOffset, 2810 d.dragView, mDragViewVisualCenter); 2811 2812 // We want the point to be mapped to the dragTarget. 2813 if (mLauncher.isHotseatLayout(dropTargetLayout)) { 2814 mapPointFromSelfToHotseatLayout(mLauncher.getHotseat(), mDragViewVisualCenter); 2815 } else { 2816 mapPointFromSelfToChild(dropTargetLayout, mDragViewVisualCenter, null); 2817 } 2818 2819 int spanX = 1; 2820 int spanY = 1; 2821 if (mDragInfo != null) { 2822 final CellLayout.CellInfo dragCellInfo = mDragInfo; 2823 spanX = dragCellInfo.spanX; 2824 spanY = dragCellInfo.spanY; 2825 } else { 2826 final ItemInfo dragInfo = (ItemInfo) d.dragInfo; 2827 spanX = dragInfo.spanX; 2828 spanY = dragInfo.spanY; 2829 } 2830 2831 int minSpanX = spanX; 2832 int minSpanY = spanY; 2833 if (d.dragInfo instanceof PendingAddWidgetInfo) { 2834 minSpanX = ((PendingAddWidgetInfo) d.dragInfo).minSpanX; 2835 minSpanY = ((PendingAddWidgetInfo) d.dragInfo).minSpanY; 2836 } 2837 2838 mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], 2839 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, dropTargetLayout, 2840 mTargetCell); 2841 float distance = dropTargetLayout.getDistanceFromCell(mDragViewVisualCenter[0], 2842 mDragViewVisualCenter[1], mTargetCell); 2843 if (mCreateUserFolderOnDrop && willCreateUserFolder((ItemInfo) d.dragInfo, 2844 dropTargetLayout, mTargetCell, distance, true)) { 2845 return true; 2846 } 2847 2848 if (mAddToExistingFolderOnDrop && willAddToExistingUserFolder((ItemInfo) d.dragInfo, 2849 dropTargetLayout, mTargetCell, distance)) { 2850 return true; 2851 } 2852 2853 int[] resultSpan = new int[2]; 2854 mTargetCell = dropTargetLayout.performReorder((int) mDragViewVisualCenter[0], 2855 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, spanX, spanY, 2856 null, mTargetCell, resultSpan, CellLayout.MODE_ACCEPT_DROP); 2857 boolean foundCell = mTargetCell[0] >= 0 && mTargetCell[1] >= 0; 2858 2859 // Don't accept the drop if there's no room for the item 2860 if (!foundCell) { 2861 // Don't show the message if we are dropping on the AllApps button and the hotseat 2862 // is full 2863 boolean isHotseat = mLauncher.isHotseatLayout(dropTargetLayout); 2864 if (mTargetCell != null && isHotseat) { 2865 Hotseat hotseat = mLauncher.getHotseat(); 2866 if (hotseat.isAllAppsButtonRank( 2867 hotseat.getOrderInHotseat(mTargetCell[0], mTargetCell[1]))) { 2868 return false; 2869 } 2870 } 2871 2872 mLauncher.showOutOfSpaceMessage(isHotseat); 2873 return false; 2874 } 2875 } 2876 2877 long screenId = getIdForScreen(dropTargetLayout); 2878 if (screenId == EXTRA_EMPTY_SCREEN_ID) { 2879 commitExtraEmptyScreen(); 2880 } 2881 2882 return true; 2883 } 2884 2885 boolean willCreateUserFolder(ItemInfo info, CellLayout target, int[] targetCell, float 2886 distance, boolean considerTimeout) { 2887 if (distance > mMaxDistanceForFolderCreation) return false; 2888 View dropOverView = target.getChildAt(targetCell[0], targetCell[1]); 2889 2890 if (dropOverView != null) { 2891 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) dropOverView.getLayoutParams(); 2892 if (lp.useTmpCoords && (lp.tmpCellX != lp.cellX || lp.tmpCellY != lp.tmpCellY)) { 2893 return false; 2894 } 2895 } 2896 2897 boolean hasntMoved = false; 2898 if (mDragInfo != null) { 2899 hasntMoved = dropOverView == mDragInfo.cell; 2900 } 2901 2902 if (dropOverView == null || hasntMoved || (considerTimeout && !mCreateUserFolderOnDrop)) { 2903 return false; 2904 } 2905 2906 boolean aboveShortcut = (dropOverView.getTag() instanceof ShortcutInfo); 2907 boolean willBecomeShortcut = 2908 (info.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPLICATION || 2909 info.itemType == LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT); 2910 2911 return (aboveShortcut && willBecomeShortcut); 2912 } 2913 2914 boolean willAddToExistingUserFolder(Object dragInfo, CellLayout target, int[] targetCell, 2915 float distance) { 2916 if (distance > mMaxDistanceForFolderCreation) return false; 2917 View dropOverView = target.getChildAt(targetCell[0], targetCell[1]); 2918 2919 if (dropOverView != null) { 2920 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) dropOverView.getLayoutParams(); 2921 if (lp.useTmpCoords && (lp.tmpCellX != lp.cellX || lp.tmpCellY != lp.tmpCellY)) { 2922 return false; 2923 } 2924 } 2925 2926 if (dropOverView instanceof FolderIcon) { 2927 FolderIcon fi = (FolderIcon) dropOverView; 2928 if (fi.acceptDrop(dragInfo)) { 2929 return true; 2930 } 2931 } 2932 return false; 2933 } 2934 2935 boolean createUserFolderIfNecessary(View newView, long container, CellLayout target, 2936 int[] targetCell, float distance, boolean external, DragView dragView, 2937 Runnable postAnimationRunnable) { 2938 if (distance > mMaxDistanceForFolderCreation) return false; 2939 View v = target.getChildAt(targetCell[0], targetCell[1]); 2940 2941 boolean hasntMoved = false; 2942 if (mDragInfo != null) { 2943 CellLayout cellParent = getParentCellLayoutForView(mDragInfo.cell); 2944 hasntMoved = (mDragInfo.cellX == targetCell[0] && 2945 mDragInfo.cellY == targetCell[1]) && (cellParent == target); 2946 } 2947 2948 if (v == null || hasntMoved || !mCreateUserFolderOnDrop) return false; 2949 mCreateUserFolderOnDrop = false; 2950 final long screenId = (targetCell == null) ? mDragInfo.screenId : getIdForScreen(target); 2951 2952 boolean aboveShortcut = (v.getTag() instanceof ShortcutInfo); 2953 boolean willBecomeShortcut = (newView.getTag() instanceof ShortcutInfo); 2954 2955 if (aboveShortcut && willBecomeShortcut) { 2956 ShortcutInfo sourceInfo = (ShortcutInfo) newView.getTag(); 2957 ShortcutInfo destInfo = (ShortcutInfo) v.getTag(); 2958 // if the drag started here, we need to remove it from the workspace 2959 if (!external) { 2960 getParentCellLayoutForView(mDragInfo.cell).removeView(mDragInfo.cell); 2961 } 2962 2963 Rect folderLocation = new Rect(); 2964 float scale = mLauncher.getDragLayer().getDescendantRectRelativeToSelf(v, folderLocation); 2965 target.removeView(v); 2966 2967 FolderIcon fi = 2968 mLauncher.addFolder(target, container, screenId, targetCell[0], targetCell[1]); 2969 destInfo.cellX = -1; 2970 destInfo.cellY = -1; 2971 sourceInfo.cellX = -1; 2972 sourceInfo.cellY = -1; 2973 2974 // If the dragView is null, we can't animate 2975 boolean animate = dragView != null; 2976 if (animate) { 2977 fi.performCreateAnimation(destInfo, v, sourceInfo, dragView, folderLocation, scale, 2978 postAnimationRunnable); 2979 } else { 2980 fi.addItem(destInfo); 2981 fi.addItem(sourceInfo); 2982 } 2983 return true; 2984 } 2985 return false; 2986 } 2987 2988 boolean addToExistingFolderIfNecessary(View newView, CellLayout target, int[] targetCell, 2989 float distance, DragObject d, boolean external) { 2990 if (distance > mMaxDistanceForFolderCreation) return false; 2991 2992 View dropOverView = target.getChildAt(targetCell[0], targetCell[1]); 2993 if (!mAddToExistingFolderOnDrop) return false; 2994 mAddToExistingFolderOnDrop = false; 2995 2996 if (dropOverView instanceof FolderIcon) { 2997 FolderIcon fi = (FolderIcon) dropOverView; 2998 if (fi.acceptDrop(d.dragInfo)) { 2999 fi.onDrop(d); 3000 3001 // if the drag started here, we need to remove it from the workspace 3002 if (!external) { 3003 getParentCellLayoutForView(mDragInfo.cell).removeView(mDragInfo.cell); 3004 } 3005 return true; 3006 } 3007 } 3008 return false; 3009 } 3010 3011 public void onDrop(final DragObject d) { 3012 mDragViewVisualCenter = getDragViewVisualCenter(d.x, d.y, d.xOffset, d.yOffset, d.dragView, 3013 mDragViewVisualCenter); 3014 3015 CellLayout dropTargetLayout = mDropToLayout; 3016 3017 // We want the point to be mapped to the dragTarget. 3018 if (dropTargetLayout != null) { 3019 if (mLauncher.isHotseatLayout(dropTargetLayout)) { 3020 mapPointFromSelfToHotseatLayout(mLauncher.getHotseat(), mDragViewVisualCenter); 3021 } else { 3022 mapPointFromSelfToChild(dropTargetLayout, mDragViewVisualCenter, null); 3023 } 3024 } 3025 3026 int snapScreen = -1; 3027 boolean resizeOnDrop = false; 3028 if (d.dragSource != this) { 3029 final int[] touchXY = new int[] { (int) mDragViewVisualCenter[0], 3030 (int) mDragViewVisualCenter[1] }; 3031 onDropExternal(touchXY, d.dragInfo, dropTargetLayout, false, d); 3032 } else if (mDragInfo != null) { 3033 final View cell = mDragInfo.cell; 3034 3035 Runnable resizeRunnable = null; 3036 if (dropTargetLayout != null && !d.cancelled) { 3037 // Move internally 3038 boolean hasMovedLayouts = (getParentCellLayoutForView(cell) != dropTargetLayout); 3039 boolean hasMovedIntoHotseat = mLauncher.isHotseatLayout(dropTargetLayout); 3040 long container = hasMovedIntoHotseat ? 3041 LauncherSettings.Favorites.CONTAINER_HOTSEAT : 3042 LauncherSettings.Favorites.CONTAINER_DESKTOP; 3043 long screenId = (mTargetCell[0] < 0) ? 3044 mDragInfo.screenId : getIdForScreen(dropTargetLayout); 3045 int spanX = mDragInfo != null ? mDragInfo.spanX : 1; 3046 int spanY = mDragInfo != null ? mDragInfo.spanY : 1; 3047 // First we find the cell nearest to point at which the item is 3048 // dropped, without any consideration to whether there is an item there. 3049 3050 mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], (int) 3051 mDragViewVisualCenter[1], spanX, spanY, dropTargetLayout, mTargetCell); 3052 float distance = dropTargetLayout.getDistanceFromCell(mDragViewVisualCenter[0], 3053 mDragViewVisualCenter[1], mTargetCell); 3054 3055 // If the item being dropped is a shortcut and the nearest drop 3056 // cell also contains a shortcut, then create a folder with the two shortcuts. 3057 if (!mInScrollArea && createUserFolderIfNecessary(cell, container, 3058 dropTargetLayout, mTargetCell, distance, false, d.dragView, null)) { 3059 // The folder cling isn't flexible enough to be shown in non-default workspace 3060 // positions. Also if they are creating a folder, we assume they don't need to 3061 // see the cling. 3062 mLauncher.markFolderClingDismissedIfNecessary(); 3063 return; 3064 } 3065 3066 if (addToExistingFolderIfNecessary(cell, dropTargetLayout, mTargetCell, 3067 distance, d, false)) { 3068 return; 3069 } 3070 3071 // Aside from the special case where we're dropping a shortcut onto a shortcut, 3072 // we need to find the nearest cell location that is vacant 3073 ItemInfo item = (ItemInfo) d.dragInfo; 3074 int minSpanX = item.spanX; 3075 int minSpanY = item.spanY; 3076 if (item.minSpanX > 0 && item.minSpanY > 0) { 3077 minSpanX = item.minSpanX; 3078 minSpanY = item.minSpanY; 3079 } 3080 3081 int[] resultSpan = new int[2]; 3082 mTargetCell = dropTargetLayout.performReorder((int) mDragViewVisualCenter[0], 3083 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, spanX, spanY, cell, 3084 mTargetCell, resultSpan, CellLayout.MODE_ON_DROP); 3085 3086 boolean foundCell = mTargetCell[0] >= 0 && mTargetCell[1] >= 0; 3087 3088 // if the widget resizes on drop 3089 if (foundCell && (cell instanceof AppWidgetHostView) && 3090 (resultSpan[0] != item.spanX || resultSpan[1] != item.spanY)) { 3091 resizeOnDrop = true; 3092 item.spanX = resultSpan[0]; 3093 item.spanY = resultSpan[1]; 3094 AppWidgetHostView awhv = (AppWidgetHostView) cell; 3095 AppWidgetResizeFrame.updateWidgetSizeRanges(awhv, mLauncher, resultSpan[0], 3096 resultSpan[1]); 3097 } 3098 3099 if (getScreenIdForPageIndex(mCurrentPage) != screenId && !hasMovedIntoHotseat) { 3100 snapScreen = getPageIndexForScreenId(screenId); 3101 snapToPage(snapScreen); 3102 } 3103 3104 if (foundCell) { 3105 final ItemInfo info = (ItemInfo) cell.getTag(); 3106 if (hasMovedLayouts) { 3107 // Reparent the view 3108 CellLayout parentCell = getParentCellLayoutForView(cell); 3109 if (parentCell != null) { 3110 parentCell.removeView(cell); 3111 } else if (LauncherAppState.isDogfoodBuild()) { 3112 throw new NullPointerException("mDragInfo.cell has null parent"); 3113 } 3114 addInScreen(cell, container, screenId, mTargetCell[0], mTargetCell[1], 3115 info.spanX, info.spanY); 3116 } 3117 3118 // update the item's position after drop 3119 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) cell.getLayoutParams(); 3120 lp.cellX = lp.tmpCellX = mTargetCell[0]; 3121 lp.cellY = lp.tmpCellY = mTargetCell[1]; 3122 lp.cellHSpan = item.spanX; 3123 lp.cellVSpan = item.spanY; 3124 lp.isLockedToGrid = true; 3125 3126 if (container != LauncherSettings.Favorites.CONTAINER_HOTSEAT && 3127 cell instanceof LauncherAppWidgetHostView) { 3128 final CellLayout cellLayout = dropTargetLayout; 3129 // We post this call so that the widget has a chance to be placed 3130 // in its final location 3131 3132 final LauncherAppWidgetHostView hostView = (LauncherAppWidgetHostView) cell; 3133 AppWidgetProviderInfo pinfo = hostView.getAppWidgetInfo(); 3134 if (pinfo != null && 3135 pinfo.resizeMode != AppWidgetProviderInfo.RESIZE_NONE) { 3136 final Runnable addResizeFrame = new Runnable() { 3137 public void run() { 3138 DragLayer dragLayer = mLauncher.getDragLayer(); 3139 dragLayer.addResizeFrame(info, hostView, cellLayout); 3140 } 3141 }; 3142 resizeRunnable = (new Runnable() { 3143 public void run() { 3144 if (!isPageMoving()) { 3145 addResizeFrame.run(); 3146 } else { 3147 mDelayedResizeRunnable = addResizeFrame; 3148 } 3149 } 3150 }); 3151 } 3152 } 3153 3154 LauncherModel.modifyItemInDatabase(mLauncher, info, container, screenId, lp.cellX, 3155 lp.cellY, item.spanX, item.spanY); 3156 } else { 3157 // If we can't find a drop location, we return the item to its original position 3158 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) cell.getLayoutParams(); 3159 mTargetCell[0] = lp.cellX; 3160 mTargetCell[1] = lp.cellY; 3161 CellLayout layout = (CellLayout) cell.getParent().getParent(); 3162 layout.markCellsAsOccupiedForView(cell); 3163 } 3164 } 3165 3166 final CellLayout parent = (CellLayout) cell.getParent().getParent(); 3167 final Runnable finalResizeRunnable = resizeRunnable; 3168 // Prepare it to be animated into its new position 3169 // This must be called after the view has been re-parented 3170 final Runnable onCompleteRunnable = new Runnable() { 3171 @Override 3172 public void run() { 3173 mAnimatingViewIntoPlace = false; 3174 updateChildrenLayersEnabled(false); 3175 if (finalResizeRunnable != null) { 3176 finalResizeRunnable.run(); 3177 } 3178 } 3179 }; 3180 mAnimatingViewIntoPlace = true; 3181 if (d.dragView.hasDrawn()) { 3182 final ItemInfo info = (ItemInfo) cell.getTag(); 3183 if (info.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET) { 3184 int animationType = resizeOnDrop ? ANIMATE_INTO_POSITION_AND_RESIZE : 3185 ANIMATE_INTO_POSITION_AND_DISAPPEAR; 3186 animateWidgetDrop(info, parent, d.dragView, 3187 onCompleteRunnable, animationType, cell, false); 3188 } else { 3189 int duration = snapScreen < 0 ? -1 : ADJACENT_SCREEN_DROP_DURATION; 3190 mLauncher.getDragLayer().animateViewIntoPosition(d.dragView, cell, duration, 3191 onCompleteRunnable, this); 3192 } 3193 } else { 3194 d.deferDragViewCleanupPostAnimation = false; 3195 cell.setVisibility(VISIBLE); 3196 } 3197 parent.onDropChild(cell); 3198 } 3199 } 3200 3201 public void setFinalScrollForPageChange(int pageIndex) { 3202 CellLayout cl = (CellLayout) getChildAt(pageIndex); 3203 if (cl != null) { 3204 mSavedScrollX = getScrollX(); 3205 mSavedTranslationX = cl.getTranslationX(); 3206 mSavedRotationY = cl.getRotationY(); 3207 final int newX = getScrollForPage(pageIndex); 3208 setScrollX(newX); 3209 cl.setTranslationX(0f); 3210 cl.setRotationY(0f); 3211 } 3212 } 3213 3214 public void resetFinalScrollForPageChange(int pageIndex) { 3215 if (pageIndex >= 0) { 3216 CellLayout cl = (CellLayout) getChildAt(pageIndex); 3217 setScrollX(mSavedScrollX); 3218 cl.setTranslationX(mSavedTranslationX); 3219 cl.setRotationY(mSavedRotationY); 3220 } 3221 } 3222 3223 public void getViewLocationRelativeToSelf(View v, int[] location) { 3224 getLocationInWindow(location); 3225 int x = location[0]; 3226 int y = location[1]; 3227 3228 v.getLocationInWindow(location); 3229 int vX = location[0]; 3230 int vY = location[1]; 3231 3232 location[0] = vX - x; 3233 location[1] = vY - y; 3234 } 3235 3236 public void onDragEnter(DragObject d) { 3237 mDragEnforcer.onDragEnter(); 3238 mCreateUserFolderOnDrop = false; 3239 mAddToExistingFolderOnDrop = false; 3240 3241 mDropToLayout = null; 3242 CellLayout layout = getCurrentDropLayout(); 3243 setCurrentDropLayout(layout); 3244 setCurrentDragOverlappingLayout(layout); 3245 3246 // Because we don't have space in the Phone UI (the CellLayouts run to the edge) we 3247 // don't need to show the outlines 3248 if (LauncherAppState.getInstance().isScreenLarge()) { 3249 showOutlines(); 3250 } 3251 } 3252 3253 /** Return a rect that has the cellWidth/cellHeight (left, top), and 3254 * widthGap/heightGap (right, bottom) */ 3255 static Rect getCellLayoutMetrics(Launcher launcher, int orientation) { 3256 LauncherAppState app = LauncherAppState.getInstance(); 3257 DeviceProfile grid = app.getDynamicGrid().getDeviceProfile(); 3258 3259 Display display = launcher.getWindowManager().getDefaultDisplay(); 3260 Point smallestSize = new Point(); 3261 Point largestSize = new Point(); 3262 display.getCurrentSizeRange(smallestSize, largestSize); 3263 int countX = (int) grid.numColumns; 3264 int countY = (int) grid.numRows; 3265 if (orientation == CellLayout.LANDSCAPE) { 3266 if (mLandscapeCellLayoutMetrics == null) { 3267 Rect padding = grid.getWorkspacePadding(CellLayout.LANDSCAPE); 3268 int width = largestSize.x - padding.left - padding.right; 3269 int height = smallestSize.y - padding.top - padding.bottom; 3270 mLandscapeCellLayoutMetrics = new Rect(); 3271 mLandscapeCellLayoutMetrics.set( 3272 grid.calculateCellWidth(width, countX), 3273 grid.calculateCellHeight(height, countY), 0, 0); 3274 } 3275 return mLandscapeCellLayoutMetrics; 3276 } else if (orientation == CellLayout.PORTRAIT) { 3277 if (mPortraitCellLayoutMetrics == null) { 3278 Rect padding = grid.getWorkspacePadding(CellLayout.PORTRAIT); 3279 int width = smallestSize.x - padding.left - padding.right; 3280 int height = largestSize.y - padding.top - padding.bottom; 3281 mPortraitCellLayoutMetrics = new Rect(); 3282 mPortraitCellLayoutMetrics.set( 3283 grid.calculateCellWidth(width, countX), 3284 grid.calculateCellHeight(height, countY), 0, 0); 3285 } 3286 return mPortraitCellLayoutMetrics; 3287 } 3288 return null; 3289 } 3290 3291 public void onDragExit(DragObject d) { 3292 mDragEnforcer.onDragExit(); 3293 3294 // Here we store the final page that will be dropped to, if the workspace in fact 3295 // receives the drop 3296 if (mInScrollArea) { 3297 if (isPageMoving()) { 3298 // If the user drops while the page is scrolling, we should use that page as the 3299 // destination instead of the page that is being hovered over. 3300 mDropToLayout = (CellLayout) getPageAt(getNextPage()); 3301 } else { 3302 mDropToLayout = mDragOverlappingLayout; 3303 } 3304 } else { 3305 mDropToLayout = mDragTargetLayout; 3306 } 3307 3308 if (mDragMode == DRAG_MODE_CREATE_FOLDER) { 3309 mCreateUserFolderOnDrop = true; 3310 } else if (mDragMode == DRAG_MODE_ADD_TO_FOLDER) { 3311 mAddToExistingFolderOnDrop = true; 3312 } 3313 3314 // Reset the scroll area and previous drag target 3315 onResetScrollArea(); 3316 setCurrentDropLayout(null); 3317 setCurrentDragOverlappingLayout(null); 3318 3319 mSpringLoadedDragController.cancel(); 3320 3321 if (!mIsPageMoving) { 3322 hideOutlines(); 3323 } 3324 } 3325 3326 void setCurrentDropLayout(CellLayout layout) { 3327 if (mDragTargetLayout != null) { 3328 mDragTargetLayout.revertTempState(); 3329 mDragTargetLayout.onDragExit(); 3330 } 3331 mDragTargetLayout = layout; 3332 if (mDragTargetLayout != null) { 3333 mDragTargetLayout.onDragEnter(); 3334 } 3335 cleanupReorder(true); 3336 cleanupFolderCreation(); 3337 setCurrentDropOverCell(-1, -1); 3338 } 3339 3340 void setCurrentDragOverlappingLayout(CellLayout layout) { 3341 if (mDragOverlappingLayout != null) { 3342 mDragOverlappingLayout.setIsDragOverlapping(false); 3343 } 3344 mDragOverlappingLayout = layout; 3345 if (mDragOverlappingLayout != null) { 3346 mDragOverlappingLayout.setIsDragOverlapping(true); 3347 } 3348 invalidate(); 3349 } 3350 3351 void setCurrentDropOverCell(int x, int y) { 3352 if (x != mDragOverX || y != mDragOverY) { 3353 mDragOverX = x; 3354 mDragOverY = y; 3355 setDragMode(DRAG_MODE_NONE); 3356 } 3357 } 3358 3359 void setDragMode(int dragMode) { 3360 if (dragMode != mDragMode) { 3361 if (dragMode == DRAG_MODE_NONE) { 3362 cleanupAddToFolder(); 3363 // We don't want to cancel the re-order alarm every time the target cell changes 3364 // as this feels to slow / unresponsive. 3365 cleanupReorder(false); 3366 cleanupFolderCreation(); 3367 } else if (dragMode == DRAG_MODE_ADD_TO_FOLDER) { 3368 cleanupReorder(true); 3369 cleanupFolderCreation(); 3370 } else if (dragMode == DRAG_MODE_CREATE_FOLDER) { 3371 cleanupAddToFolder(); 3372 cleanupReorder(true); 3373 } else if (dragMode == DRAG_MODE_REORDER) { 3374 cleanupAddToFolder(); 3375 cleanupFolderCreation(); 3376 } 3377 mDragMode = dragMode; 3378 } 3379 } 3380 3381 private void cleanupFolderCreation() { 3382 if (mDragFolderRingAnimator != null) { 3383 mDragFolderRingAnimator.animateToNaturalState(); 3384 mDragFolderRingAnimator = null; 3385 } 3386 mFolderCreationAlarm.setOnAlarmListener(null); 3387 mFolderCreationAlarm.cancelAlarm(); 3388 } 3389 3390 private void cleanupAddToFolder() { 3391 if (mDragOverFolderIcon != null) { 3392 mDragOverFolderIcon.onDragExit(null); 3393 mDragOverFolderIcon = null; 3394 } 3395 } 3396 3397 private void cleanupReorder(boolean cancelAlarm) { 3398 // Any pending reorders are canceled 3399 if (cancelAlarm) { 3400 mReorderAlarm.cancelAlarm(); 3401 } 3402 mLastReorderX = -1; 3403 mLastReorderY = -1; 3404 } 3405 3406 /* 3407 * 3408 * Convert the 2D coordinate xy from the parent View's coordinate space to this CellLayout's 3409 * coordinate space. The argument xy is modified with the return result. 3410 * 3411 * if cachedInverseMatrix is not null, this method will just use that matrix instead of 3412 * computing it itself; we use this to avoid redundant matrix inversions in 3413 * findMatchingPageForDragOver 3414 * 3415 */ 3416 void mapPointFromSelfToChild(View v, float[] xy, Matrix cachedInverseMatrix) { 3417 xy[0] = xy[0] - v.getLeft(); 3418 xy[1] = xy[1] - v.getTop(); 3419 } 3420 3421 boolean isPointInSelfOverHotseat(int x, int y, Rect r) { 3422 if (r == null) { 3423 r = new Rect(); 3424 } 3425 mTempPt[0] = x; 3426 mTempPt[1] = y; 3427 mLauncher.getDragLayer().getDescendantCoordRelativeToSelf(this, mTempPt, true); 3428 3429 LauncherAppState app = LauncherAppState.getInstance(); 3430 DeviceProfile grid = app.getDynamicGrid().getDeviceProfile(); 3431 r = grid.getHotseatRect(); 3432 if (r.contains(mTempPt[0], mTempPt[1])) { 3433 return true; 3434 } 3435 return false; 3436 } 3437 3438 void mapPointFromSelfToHotseatLayout(Hotseat hotseat, float[] xy) { 3439 mTempPt[0] = (int) xy[0]; 3440 mTempPt[1] = (int) xy[1]; 3441 mLauncher.getDragLayer().getDescendantCoordRelativeToSelf(this, mTempPt, true); 3442 mLauncher.getDragLayer().mapCoordInSelfToDescendent(hotseat.getLayout(), mTempPt); 3443 3444 xy[0] = mTempPt[0]; 3445 xy[1] = mTempPt[1]; 3446 } 3447 3448 /* 3449 * 3450 * Convert the 2D coordinate xy from this CellLayout's coordinate space to 3451 * the parent View's coordinate space. The argument xy is modified with the return result. 3452 * 3453 */ 3454 void mapPointFromChildToSelf(View v, float[] xy) { 3455 xy[0] += v.getLeft(); 3456 xy[1] += v.getTop(); 3457 } 3458 3459 static private float squaredDistance(float[] point1, float[] point2) { 3460 float distanceX = point1[0] - point2[0]; 3461 float distanceY = point2[1] - point2[1]; 3462 return distanceX * distanceX + distanceY * distanceY; 3463 } 3464 3465 /* 3466 * 3467 * This method returns the CellLayout that is currently being dragged to. In order to drag 3468 * to a CellLayout, either the touch point must be directly over the CellLayout, or as a second 3469 * strategy, we see if the dragView is overlapping any CellLayout and choose the closest one 3470 * 3471 * Return null if no CellLayout is currently being dragged over 3472 * 3473 */ 3474 private CellLayout findMatchingPageForDragOver( 3475 DragView dragView, float originX, float originY, boolean exact) { 3476 // We loop through all the screens (ie CellLayouts) and see which ones overlap 3477 // with the item being dragged and then choose the one that's closest to the touch point 3478 final int screenCount = getChildCount(); 3479 CellLayout bestMatchingScreen = null; 3480 float smallestDistSoFar = Float.MAX_VALUE; 3481 3482 for (int i = 0; i < screenCount; i++) { 3483 // The custom content screen is not a valid drag over option 3484 if (mScreenOrder.get(i) == CUSTOM_CONTENT_SCREEN_ID) { 3485 continue; 3486 } 3487 3488 CellLayout cl = (CellLayout) getChildAt(i); 3489 3490 final float[] touchXy = {originX, originY}; 3491 // Transform the touch coordinates to the CellLayout's local coordinates 3492 // If the touch point is within the bounds of the cell layout, we can return immediately 3493 cl.getMatrix().invert(mTempInverseMatrix); 3494 mapPointFromSelfToChild(cl, touchXy, mTempInverseMatrix); 3495 3496 if (touchXy[0] >= 0 && touchXy[0] <= cl.getWidth() && 3497 touchXy[1] >= 0 && touchXy[1] <= cl.getHeight()) { 3498 return cl; 3499 } 3500 3501 if (!exact) { 3502 // Get the center of the cell layout in screen coordinates 3503 final float[] cellLayoutCenter = mTempCellLayoutCenterCoordinates; 3504 cellLayoutCenter[0] = cl.getWidth()/2; 3505 cellLayoutCenter[1] = cl.getHeight()/2; 3506 mapPointFromChildToSelf(cl, cellLayoutCenter); 3507 3508 touchXy[0] = originX; 3509 touchXy[1] = originY; 3510 3511 // Calculate the distance between the center of the CellLayout 3512 // and the touch point 3513 float dist = squaredDistance(touchXy, cellLayoutCenter); 3514 3515 if (dist < smallestDistSoFar) { 3516 smallestDistSoFar = dist; 3517 bestMatchingScreen = cl; 3518 } 3519 } 3520 } 3521 return bestMatchingScreen; 3522 } 3523 3524 // This is used to compute the visual center of the dragView. This point is then 3525 // used to visualize drop locations and determine where to drop an item. The idea is that 3526 // the visual center represents the user's interpretation of where the item is, and hence 3527 // is the appropriate point to use when determining drop location. 3528 private float[] getDragViewVisualCenter(int x, int y, int xOffset, int yOffset, 3529 DragView dragView, float[] recycle) { 3530 float res[]; 3531 if (recycle == null) { 3532 res = new float[2]; 3533 } else { 3534 res = recycle; 3535 } 3536 3537 // First off, the drag view has been shifted in a way that is not represented in the 3538 // x and y values or the x/yOffsets. Here we account for that shift. 3539 x += getResources().getDimensionPixelSize(R.dimen.dragViewOffsetX); 3540 y += getResources().getDimensionPixelSize(R.dimen.dragViewOffsetY); 3541 3542 // These represent the visual top and left of drag view if a dragRect was provided. 3543 // If a dragRect was not provided, then they correspond to the actual view left and 3544 // top, as the dragRect is in that case taken to be the entire dragView. 3545 // R.dimen.dragViewOffsetY. 3546 int left = x - xOffset; 3547 int top = y - yOffset; 3548 3549 // In order to find the visual center, we shift by half the dragRect 3550 res[0] = left + dragView.getDragRegion().width() / 2; 3551 res[1] = top + dragView.getDragRegion().height() / 2; 3552 3553 return res; 3554 } 3555 3556 private boolean isDragWidget(DragObject d) { 3557 return (d.dragInfo instanceof LauncherAppWidgetInfo || 3558 d.dragInfo instanceof PendingAddWidgetInfo); 3559 } 3560 private boolean isExternalDragWidget(DragObject d) { 3561 return d.dragSource != this && isDragWidget(d); 3562 } 3563 3564 public void onDragOver(DragObject d) { 3565 // Skip drag over events while we are dragging over side pages 3566 if (mInScrollArea || !transitionStateShouldAllowDrop()) return; 3567 3568 Rect r = new Rect(); 3569 CellLayout layout = null; 3570 ItemInfo item = (ItemInfo) d.dragInfo; 3571 if (item == null) { 3572 if (LauncherAppState.isDogfoodBuild()) { 3573 throw new NullPointerException("DragObject has null info"); 3574 } 3575 return; 3576 } 3577 3578 // Ensure that we have proper spans for the item that we are dropping 3579 if (item.spanX < 0 || item.spanY < 0) throw new RuntimeException("Improper spans found"); 3580 mDragViewVisualCenter = getDragViewVisualCenter(d.x, d.y, d.xOffset, d.yOffset, 3581 d.dragView, mDragViewVisualCenter); 3582 3583 final View child = (mDragInfo == null) ? null : mDragInfo.cell; 3584 // Identify whether we have dragged over a side page 3585 if (workspaceInModalState()) { 3586 if (mLauncher.getHotseat() != null && !isExternalDragWidget(d)) { 3587 if (isPointInSelfOverHotseat(d.x, d.y, r)) { 3588 layout = mLauncher.getHotseat().getLayout(); 3589 } 3590 } 3591 if (layout == null) { 3592 layout = findMatchingPageForDragOver(d.dragView, d.x, d.y, false); 3593 } 3594 if (layout != mDragTargetLayout) { 3595 setCurrentDropLayout(layout); 3596 setCurrentDragOverlappingLayout(layout); 3597 3598 boolean isInSpringLoadedMode = (mState == State.SPRING_LOADED); 3599 if (isInSpringLoadedMode) { 3600 if (mLauncher.isHotseatLayout(layout)) { 3601 mSpringLoadedDragController.cancel(); 3602 } else { 3603 mSpringLoadedDragController.setAlarm(mDragTargetLayout); 3604 } 3605 } 3606 } 3607 } else { 3608 // Test to see if we are over the hotseat otherwise just use the current page 3609 if (mLauncher.getHotseat() != null && !isDragWidget(d)) { 3610 if (isPointInSelfOverHotseat(d.x, d.y, r)) { 3611 layout = mLauncher.getHotseat().getLayout(); 3612 } 3613 } 3614 if (layout == null) { 3615 layout = getCurrentDropLayout(); 3616 } 3617 if (layout != mDragTargetLayout) { 3618 setCurrentDropLayout(layout); 3619 setCurrentDragOverlappingLayout(layout); 3620 } 3621 } 3622 3623 // Handle the drag over 3624 if (mDragTargetLayout != null) { 3625 // We want the point to be mapped to the dragTarget. 3626 if (mLauncher.isHotseatLayout(mDragTargetLayout)) { 3627 mapPointFromSelfToHotseatLayout(mLauncher.getHotseat(), mDragViewVisualCenter); 3628 } else { 3629 mapPointFromSelfToChild(mDragTargetLayout, mDragViewVisualCenter, null); 3630 } 3631 3632 ItemInfo info = (ItemInfo) d.dragInfo; 3633 3634 int minSpanX = item.spanX; 3635 int minSpanY = item.spanY; 3636 if (item.minSpanX > 0 && item.minSpanY > 0) { 3637 minSpanX = item.minSpanX; 3638 minSpanY = item.minSpanY; 3639 } 3640 3641 mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], 3642 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, 3643 mDragTargetLayout, mTargetCell); 3644 int reorderX = mTargetCell[0]; 3645 int reorderY = mTargetCell[1]; 3646 3647 setCurrentDropOverCell(mTargetCell[0], mTargetCell[1]); 3648 3649 float targetCellDistance = mDragTargetLayout.getDistanceFromCell( 3650 mDragViewVisualCenter[0], mDragViewVisualCenter[1], mTargetCell); 3651 3652 final View dragOverView = mDragTargetLayout.getChildAt(mTargetCell[0], 3653 mTargetCell[1]); 3654 3655 manageFolderFeedback(info, mDragTargetLayout, mTargetCell, 3656 targetCellDistance, dragOverView); 3657 3658 boolean nearestDropOccupied = mDragTargetLayout.isNearestDropLocationOccupied((int) 3659 mDragViewVisualCenter[0], (int) mDragViewVisualCenter[1], item.spanX, 3660 item.spanY, child, mTargetCell); 3661 3662 if (!nearestDropOccupied) { 3663 mDragTargetLayout.visualizeDropLocation(child, mDragOutline, 3664 (int) mDragViewVisualCenter[0], (int) mDragViewVisualCenter[1], 3665 mTargetCell[0], mTargetCell[1], item.spanX, item.spanY, false, 3666 d.dragView.getDragVisualizeOffset(), d.dragView.getDragRegion()); 3667 } else if ((mDragMode == DRAG_MODE_NONE || mDragMode == DRAG_MODE_REORDER) 3668 && !mReorderAlarm.alarmPending() && (mLastReorderX != reorderX || 3669 mLastReorderY != reorderY)) { 3670 3671 int[] resultSpan = new int[2]; 3672 mDragTargetLayout.performReorder((int) mDragViewVisualCenter[0], 3673 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, item.spanX, item.spanY, 3674 child, mTargetCell, resultSpan, CellLayout.MODE_SHOW_REORDER_HINT); 3675 3676 // Otherwise, if we aren't adding to or creating a folder and there's no pending 3677 // reorder, then we schedule a reorder 3678 ReorderAlarmListener listener = new ReorderAlarmListener(mDragViewVisualCenter, 3679 minSpanX, minSpanY, item.spanX, item.spanY, d.dragView, child); 3680 mReorderAlarm.setOnAlarmListener(listener); 3681 mReorderAlarm.setAlarm(REORDER_TIMEOUT); 3682 } 3683 3684 if (mDragMode == DRAG_MODE_CREATE_FOLDER || mDragMode == DRAG_MODE_ADD_TO_FOLDER || 3685 !nearestDropOccupied) { 3686 if (mDragTargetLayout != null) { 3687 mDragTargetLayout.revertTempState(); 3688 } 3689 } 3690 } 3691 } 3692 3693 private void manageFolderFeedback(ItemInfo info, CellLayout targetLayout, 3694 int[] targetCell, float distance, View dragOverView) { 3695 boolean userFolderPending = willCreateUserFolder(info, targetLayout, targetCell, distance, 3696 false); 3697 3698 if (mDragMode == DRAG_MODE_NONE && userFolderPending && 3699 !mFolderCreationAlarm.alarmPending()) { 3700 mFolderCreationAlarm.setOnAlarmListener(new 3701 FolderCreationAlarmListener(targetLayout, targetCell[0], targetCell[1])); 3702 mFolderCreationAlarm.setAlarm(FOLDER_CREATION_TIMEOUT); 3703 return; 3704 } 3705 3706 boolean willAddToFolder = 3707 willAddToExistingUserFolder(info, targetLayout, targetCell, distance); 3708 3709 if (willAddToFolder && mDragMode == DRAG_MODE_NONE) { 3710 mDragOverFolderIcon = ((FolderIcon) dragOverView); 3711 mDragOverFolderIcon.onDragEnter(info); 3712 if (targetLayout != null) { 3713 targetLayout.clearDragOutlines(); 3714 } 3715 setDragMode(DRAG_MODE_ADD_TO_FOLDER); 3716 return; 3717 } 3718 3719 if (mDragMode == DRAG_MODE_ADD_TO_FOLDER && !willAddToFolder) { 3720 setDragMode(DRAG_MODE_NONE); 3721 } 3722 if (mDragMode == DRAG_MODE_CREATE_FOLDER && !userFolderPending) { 3723 setDragMode(DRAG_MODE_NONE); 3724 } 3725 3726 return; 3727 } 3728 3729 class FolderCreationAlarmListener implements OnAlarmListener { 3730 CellLayout layout; 3731 int cellX; 3732 int cellY; 3733 3734 public FolderCreationAlarmListener(CellLayout layout, int cellX, int cellY) { 3735 this.layout = layout; 3736 this.cellX = cellX; 3737 this.cellY = cellY; 3738 } 3739 3740 public void onAlarm(Alarm alarm) { 3741 if (mDragFolderRingAnimator != null) { 3742 // This shouldn't happen ever, but just in case, make sure we clean up the mess. 3743 mDragFolderRingAnimator.animateToNaturalState(); 3744 } 3745 mDragFolderRingAnimator = new FolderRingAnimator(mLauncher, null); 3746 mDragFolderRingAnimator.setCell(cellX, cellY); 3747 mDragFolderRingAnimator.setCellLayout(layout); 3748 mDragFolderRingAnimator.animateToAcceptState(); 3749 layout.showFolderAccept(mDragFolderRingAnimator); 3750 layout.clearDragOutlines(); 3751 setDragMode(DRAG_MODE_CREATE_FOLDER); 3752 } 3753 } 3754 3755 class ReorderAlarmListener implements OnAlarmListener { 3756 float[] dragViewCenter; 3757 int minSpanX, minSpanY, spanX, spanY; 3758 DragView dragView; 3759 View child; 3760 3761 public ReorderAlarmListener(float[] dragViewCenter, int minSpanX, int minSpanY, int spanX, 3762 int spanY, DragView dragView, View child) { 3763 this.dragViewCenter = dragViewCenter; 3764 this.minSpanX = minSpanX; 3765 this.minSpanY = minSpanY; 3766 this.spanX = spanX; 3767 this.spanY = spanY; 3768 this.child = child; 3769 this.dragView = dragView; 3770 } 3771 3772 public void onAlarm(Alarm alarm) { 3773 int[] resultSpan = new int[2]; 3774 mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], 3775 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, mDragTargetLayout, 3776 mTargetCell); 3777 mLastReorderX = mTargetCell[0]; 3778 mLastReorderY = mTargetCell[1]; 3779 3780 mTargetCell = mDragTargetLayout.performReorder((int) mDragViewVisualCenter[0], 3781 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, spanX, spanY, 3782 child, mTargetCell, resultSpan, CellLayout.MODE_DRAG_OVER); 3783 3784 if (mTargetCell[0] < 0 || mTargetCell[1] < 0) { 3785 mDragTargetLayout.revertTempState(); 3786 } else { 3787 setDragMode(DRAG_MODE_REORDER); 3788 } 3789 3790 boolean resize = resultSpan[0] != spanX || resultSpan[1] != spanY; 3791 mDragTargetLayout.visualizeDropLocation(child, mDragOutline, 3792 (int) mDragViewVisualCenter[0], (int) mDragViewVisualCenter[1], 3793 mTargetCell[0], mTargetCell[1], resultSpan[0], resultSpan[1], resize, 3794 dragView.getDragVisualizeOffset(), dragView.getDragRegion()); 3795 } 3796 } 3797 3798 @Override 3799 public void getHitRectRelativeToDragLayer(Rect outRect) { 3800 // We want the workspace to have the whole area of the display (it will find the correct 3801 // cell layout to drop to in the existing drag/drop logic. 3802 mLauncher.getDragLayer().getDescendantRectRelativeToSelf(this, outRect); 3803 } 3804 3805 /** 3806 * Add the item specified by dragInfo to the given layout. 3807 * @return true if successful 3808 */ 3809 public boolean addExternalItemToScreen(ItemInfo dragInfo, CellLayout layout) { 3810 if (layout.findCellForSpan(mTempEstimate, dragInfo.spanX, dragInfo.spanY)) { 3811 onDropExternal(dragInfo.dropPos, (ItemInfo) dragInfo, (CellLayout) layout, false); 3812 return true; 3813 } 3814 mLauncher.showOutOfSpaceMessage(mLauncher.isHotseatLayout(layout)); 3815 return false; 3816 } 3817 3818 private void onDropExternal(int[] touchXY, Object dragInfo, 3819 CellLayout cellLayout, boolean insertAtFirst) { 3820 onDropExternal(touchXY, dragInfo, cellLayout, insertAtFirst, null); 3821 } 3822 3823 /** 3824 * Drop an item that didn't originate on one of the workspace screens. 3825 * It may have come from Launcher (e.g. from all apps or customize), or it may have 3826 * come from another app altogether. 3827 * 3828 * NOTE: This can also be called when we are outside of a drag event, when we want 3829 * to add an item to one of the workspace screens. 3830 */ 3831 private void onDropExternal(final int[] touchXY, final Object dragInfo, 3832 final CellLayout cellLayout, boolean insertAtFirst, DragObject d) { 3833 final Runnable exitSpringLoadedRunnable = new Runnable() { 3834 @Override 3835 public void run() { 3836 mLauncher.exitSpringLoadedDragModeDelayed(true, 3837 Launcher.EXIT_SPRINGLOADED_MODE_SHORT_TIMEOUT, null); 3838 } 3839 }; 3840 3841 ItemInfo info = (ItemInfo) dragInfo; 3842 int spanX = info.spanX; 3843 int spanY = info.spanY; 3844 if (mDragInfo != null) { 3845 spanX = mDragInfo.spanX; 3846 spanY = mDragInfo.spanY; 3847 } 3848 3849 final long container = mLauncher.isHotseatLayout(cellLayout) ? 3850 LauncherSettings.Favorites.CONTAINER_HOTSEAT : 3851 LauncherSettings.Favorites.CONTAINER_DESKTOP; 3852 final long screenId = getIdForScreen(cellLayout); 3853 if (!mLauncher.isHotseatLayout(cellLayout) 3854 && screenId != getScreenIdForPageIndex(mCurrentPage) 3855 && mState != State.SPRING_LOADED) { 3856 snapToScreenId(screenId, null); 3857 } 3858 3859 if (info instanceof PendingAddItemInfo) { 3860 final PendingAddItemInfo pendingInfo = (PendingAddItemInfo) dragInfo; 3861 3862 boolean findNearestVacantCell = true; 3863 if (pendingInfo.itemType == LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT) { 3864 mTargetCell = findNearestArea((int) touchXY[0], (int) touchXY[1], spanX, spanY, 3865 cellLayout, mTargetCell); 3866 float distance = cellLayout.getDistanceFromCell(mDragViewVisualCenter[0], 3867 mDragViewVisualCenter[1], mTargetCell); 3868 if (willCreateUserFolder((ItemInfo) d.dragInfo, cellLayout, mTargetCell, 3869 distance, true) || willAddToExistingUserFolder((ItemInfo) d.dragInfo, 3870 cellLayout, mTargetCell, distance)) { 3871 findNearestVacantCell = false; 3872 } 3873 } 3874 3875 final ItemInfo item = (ItemInfo) d.dragInfo; 3876 boolean updateWidgetSize = false; 3877 if (findNearestVacantCell) { 3878 int minSpanX = item.spanX; 3879 int minSpanY = item.spanY; 3880 if (item.minSpanX > 0 && item.minSpanY > 0) { 3881 minSpanX = item.minSpanX; 3882 minSpanY = item.minSpanY; 3883 } 3884 int[] resultSpan = new int[2]; 3885 mTargetCell = cellLayout.performReorder((int) mDragViewVisualCenter[0], 3886 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, info.spanX, info.spanY, 3887 null, mTargetCell, resultSpan, CellLayout.MODE_ON_DROP_EXTERNAL); 3888 3889 if (resultSpan[0] != item.spanX || resultSpan[1] != item.spanY) { 3890 updateWidgetSize = true; 3891 } 3892 item.spanX = resultSpan[0]; 3893 item.spanY = resultSpan[1]; 3894 } 3895 3896 Runnable onAnimationCompleteRunnable = new Runnable() { 3897 @Override 3898 public void run() { 3899 // Normally removeExtraEmptyScreen is called in Workspace#onDragEnd, but when 3900 // adding an item that may not be dropped right away (due to a config activity) 3901 // we defer the removal until the activity returns. 3902 deferRemoveExtraEmptyScreen(); 3903 3904 // When dragging and dropping from customization tray, we deal with creating 3905 // widgets/shortcuts/folders in a slightly different way 3906 switch (pendingInfo.itemType) { 3907 case LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET: 3908 int span[] = new int[2]; 3909 span[0] = item.spanX; 3910 span[1] = item.spanY; 3911 mLauncher.addAppWidgetFromDrop((PendingAddWidgetInfo) pendingInfo, 3912 container, screenId, mTargetCell, span, null); 3913 break; 3914 case LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT: 3915 mLauncher.processShortcutFromDrop(pendingInfo.componentName, 3916 container, screenId, mTargetCell, null); 3917 break; 3918 default: 3919 throw new IllegalStateException("Unknown item type: " + 3920 pendingInfo.itemType); 3921 } 3922 } 3923 }; 3924 View finalView = pendingInfo.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET 3925 ? ((PendingAddWidgetInfo) pendingInfo).boundWidget : null; 3926 3927 if (finalView instanceof AppWidgetHostView && updateWidgetSize) { 3928 AppWidgetHostView awhv = (AppWidgetHostView) finalView; 3929 AppWidgetResizeFrame.updateWidgetSizeRanges(awhv, mLauncher, item.spanX, 3930 item.spanY); 3931 } 3932 3933 int animationStyle = ANIMATE_INTO_POSITION_AND_DISAPPEAR; 3934 if (pendingInfo.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET && 3935 ((PendingAddWidgetInfo) pendingInfo).info.configure != null) { 3936 animationStyle = ANIMATE_INTO_POSITION_AND_REMAIN; 3937 } 3938 animateWidgetDrop(info, cellLayout, d.dragView, onAnimationCompleteRunnable, 3939 animationStyle, finalView, true); 3940 } else { 3941 // This is for other drag/drop cases, like dragging from All Apps 3942 View view = null; 3943 3944 switch (info.itemType) { 3945 case LauncherSettings.Favorites.ITEM_TYPE_APPLICATION: 3946 case LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT: 3947 if (info.container == NO_ID && info instanceof AppInfo) { 3948 // Came from all apps -- make a copy 3949 info = new ShortcutInfo((AppInfo) info); 3950 } 3951 view = mLauncher.createShortcut(R.layout.application, cellLayout, 3952 (ShortcutInfo) info); 3953 break; 3954 case LauncherSettings.Favorites.ITEM_TYPE_FOLDER: 3955 view = FolderIcon.fromXml(R.layout.folder_icon, mLauncher, cellLayout, 3956 (FolderInfo) info, mIconCache); 3957 break; 3958 default: 3959 throw new IllegalStateException("Unknown item type: " + info.itemType); 3960 } 3961 3962 // First we find the cell nearest to point at which the item is 3963 // dropped, without any consideration to whether there is an item there. 3964 if (touchXY != null) { 3965 mTargetCell = findNearestArea((int) touchXY[0], (int) touchXY[1], spanX, spanY, 3966 cellLayout, mTargetCell); 3967 float distance = cellLayout.getDistanceFromCell(mDragViewVisualCenter[0], 3968 mDragViewVisualCenter[1], mTargetCell); 3969 d.postAnimationRunnable = exitSpringLoadedRunnable; 3970 if (createUserFolderIfNecessary(view, container, cellLayout, mTargetCell, distance, 3971 true, d.dragView, d.postAnimationRunnable)) { 3972 // The folder cling isn't flexible enough to be shown in non-default workspace 3973 // positions. Also if they are creating a folder, we assume they don't need to 3974 // see the cling. 3975 mLauncher.markFolderClingDismissedIfNecessary(); 3976 return; 3977 } 3978 if (addToExistingFolderIfNecessary(view, cellLayout, mTargetCell, distance, d, 3979 true)) { 3980 return; 3981 } 3982 } 3983 3984 if (touchXY != null) { 3985 // when dragging and dropping, just find the closest free spot 3986 mTargetCell = cellLayout.performReorder((int) mDragViewVisualCenter[0], 3987 (int) mDragViewVisualCenter[1], 1, 1, 1, 1, 3988 null, mTargetCell, null, CellLayout.MODE_ON_DROP_EXTERNAL); 3989 } else { 3990 cellLayout.findCellForSpan(mTargetCell, 1, 1); 3991 } 3992 addInScreen(view, container, screenId, mTargetCell[0], mTargetCell[1], info.spanX, 3993 info.spanY, insertAtFirst); 3994 cellLayout.onDropChild(view); 3995 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) view.getLayoutParams(); 3996 cellLayout.getShortcutsAndWidgets().measureChild(view); 3997 3998 LauncherModel.addOrMoveItemInDatabase(mLauncher, info, container, screenId, 3999 lp.cellX, lp.cellY); 4000 4001 if (d.dragView != null) { 4002 // We wrap the animation call in the temporary set and reset of the current 4003 // cellLayout to its final transform -- this means we animate the drag view to 4004 // the correct final location. 4005 setFinalTransitionTransform(cellLayout); 4006 mLauncher.getDragLayer().animateViewIntoPosition(d.dragView, view, 4007 exitSpringLoadedRunnable, this); 4008 resetTransitionTransform(cellLayout); 4009 } 4010 } 4011 } 4012 4013 public Bitmap createWidgetBitmap(ItemInfo widgetInfo, View layout) { 4014 int[] unScaledSize = mLauncher.getWorkspace().estimateItemSize(widgetInfo.spanX, 4015 widgetInfo.spanY, widgetInfo, false); 4016 int visibility = layout.getVisibility(); 4017 layout.setVisibility(VISIBLE); 4018 4019 int width = MeasureSpec.makeMeasureSpec(unScaledSize[0], MeasureSpec.EXACTLY); 4020 int height = MeasureSpec.makeMeasureSpec(unScaledSize[1], MeasureSpec.EXACTLY); 4021 Bitmap b = Bitmap.createBitmap(unScaledSize[0], unScaledSize[1], 4022 Bitmap.Config.ARGB_8888); 4023 Canvas c = new Canvas(b); 4024 4025 layout.measure(width, height); 4026 layout.layout(0, 0, unScaledSize[0], unScaledSize[1]); 4027 layout.draw(c); 4028 c.setBitmap(null); 4029 layout.setVisibility(visibility); 4030 return b; 4031 } 4032 4033 private void getFinalPositionForDropAnimation(int[] loc, float[] scaleXY, 4034 DragView dragView, CellLayout layout, ItemInfo info, int[] targetCell, 4035 boolean external, boolean scale) { 4036 // Now we animate the dragView, (ie. the widget or shortcut preview) into its final 4037 // location and size on the home screen. 4038 int spanX = info.spanX; 4039 int spanY = info.spanY; 4040 4041 Rect r = estimateItemPosition(layout, info, targetCell[0], targetCell[1], spanX, spanY); 4042 loc[0] = r.left; 4043 loc[1] = r.top; 4044 4045 setFinalTransitionTransform(layout); 4046 float cellLayoutScale = 4047 mLauncher.getDragLayer().getDescendantCoordRelativeToSelf(layout, loc, true); 4048 resetTransitionTransform(layout); 4049 4050 float dragViewScaleX; 4051 float dragViewScaleY; 4052 if (scale) { 4053 dragViewScaleX = (1.0f * r.width()) / dragView.getMeasuredWidth(); 4054 dragViewScaleY = (1.0f * r.height()) / dragView.getMeasuredHeight(); 4055 } else { 4056 dragViewScaleX = 1f; 4057 dragViewScaleY = 1f; 4058 } 4059 4060 // The animation will scale the dragView about its center, so we need to center about 4061 // the final location. 4062 loc[0] -= (dragView.getMeasuredWidth() - cellLayoutScale * r.width()) / 2; 4063 loc[1] -= (dragView.getMeasuredHeight() - cellLayoutScale * r.height()) / 2; 4064 4065 scaleXY[0] = dragViewScaleX * cellLayoutScale; 4066 scaleXY[1] = dragViewScaleY * cellLayoutScale; 4067 } 4068 4069 public void animateWidgetDrop(ItemInfo info, CellLayout cellLayout, DragView dragView, 4070 final Runnable onCompleteRunnable, int animationType, final View finalView, 4071 boolean external) { 4072 Rect from = new Rect(); 4073 mLauncher.getDragLayer().getViewRectRelativeToSelf(dragView, from); 4074 4075 int[] finalPos = new int[2]; 4076 float scaleXY[] = new float[2]; 4077 boolean scalePreview = !(info instanceof PendingAddShortcutInfo); 4078 getFinalPositionForDropAnimation(finalPos, scaleXY, dragView, cellLayout, info, mTargetCell, 4079 external, scalePreview); 4080 4081 Resources res = mLauncher.getResources(); 4082 final int duration = res.getInteger(R.integer.config_dropAnimMaxDuration) - 200; 4083 4084 // In the case where we've prebound the widget, we remove it from the DragLayer 4085 if (finalView instanceof AppWidgetHostView && external) { 4086 Log.d(TAG, "6557954 Animate widget drop, final view is appWidgetHostView"); 4087 mLauncher.getDragLayer().removeView(finalView); 4088 } 4089 if ((animationType == ANIMATE_INTO_POSITION_AND_RESIZE || external) && finalView != null) { 4090 Bitmap crossFadeBitmap = createWidgetBitmap(info, finalView); 4091 dragView.setCrossFadeBitmap(crossFadeBitmap); 4092 dragView.crossFade((int) (duration * 0.8f)); 4093 } else if (info.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET && external) { 4094 scaleXY[0] = scaleXY[1] = Math.min(scaleXY[0], scaleXY[1]); 4095 } 4096 4097 DragLayer dragLayer = mLauncher.getDragLayer(); 4098 if (animationType == CANCEL_TWO_STAGE_WIDGET_DROP_ANIMATION) { 4099 mLauncher.getDragLayer().animateViewIntoPosition(dragView, finalPos, 0f, 0.1f, 0.1f, 4100 DragLayer.ANIMATION_END_DISAPPEAR, onCompleteRunnable, duration); 4101 } else { 4102 int endStyle; 4103 if (animationType == ANIMATE_INTO_POSITION_AND_REMAIN) { 4104 endStyle = DragLayer.ANIMATION_END_REMAIN_VISIBLE; 4105 } else { 4106 endStyle = DragLayer.ANIMATION_END_DISAPPEAR;; 4107 } 4108 4109 Runnable onComplete = new Runnable() { 4110 @Override 4111 public void run() { 4112 if (finalView != null) { 4113 finalView.setVisibility(VISIBLE); 4114 } 4115 if (onCompleteRunnable != null) { 4116 onCompleteRunnable.run(); 4117 } 4118 } 4119 }; 4120 dragLayer.animateViewIntoPosition(dragView, from.left, from.top, finalPos[0], 4121 finalPos[1], 1, 1, 1, scaleXY[0], scaleXY[1], onComplete, endStyle, 4122 duration, this); 4123 } 4124 } 4125 4126 public void setFinalTransitionTransform(CellLayout layout) { 4127 if (isSwitchingState()) { 4128 mCurrentScale = getScaleX(); 4129 setScaleX(mNewScale); 4130 setScaleY(mNewScale); 4131 } 4132 } 4133 public void resetTransitionTransform(CellLayout layout) { 4134 if (isSwitchingState()) { 4135 setScaleX(mCurrentScale); 4136 setScaleY(mCurrentScale); 4137 } 4138 } 4139 4140 /** 4141 * Return the current {@link CellLayout}, correctly picking the destination 4142 * screen while a scroll is in progress. 4143 */ 4144 public CellLayout getCurrentDropLayout() { 4145 return (CellLayout) getChildAt(getNextPage()); 4146 } 4147 4148 /** 4149 * Return the current CellInfo describing our current drag; this method exists 4150 * so that Launcher can sync this object with the correct info when the activity is created/ 4151 * destroyed 4152 * 4153 */ 4154 public CellLayout.CellInfo getDragInfo() { 4155 return mDragInfo; 4156 } 4157 4158 public int getCurrentPageOffsetFromCustomContent() { 4159 return getNextPage() - numCustomPages(); 4160 } 4161 4162 /** 4163 * Calculate the nearest cell where the given object would be dropped. 4164 * 4165 * pixelX and pixelY should be in the coordinate system of layout 4166 */ 4167 private int[] findNearestArea(int pixelX, int pixelY, 4168 int spanX, int spanY, CellLayout layout, int[] recycle) { 4169 return layout.findNearestArea( 4170 pixelX, pixelY, spanX, spanY, recycle); 4171 } 4172 4173 void setup(DragController dragController) { 4174 mSpringLoadedDragController = new SpringLoadedDragController(mLauncher); 4175 mDragController = dragController; 4176 4177 // hardware layers on children are enabled on startup, but should be disabled until 4178 // needed 4179 updateChildrenLayersEnabled(false); 4180 } 4181 4182 /** 4183 * Called at the end of a drag which originated on the workspace. 4184 */ 4185 public void onDropCompleted(final View target, final DragObject d, 4186 final boolean isFlingToDelete, final boolean success) { 4187 if (mDeferDropAfterUninstall) { 4188 mDeferredAction = new Runnable() { 4189 public void run() { 4190 onDropCompleted(target, d, isFlingToDelete, success); 4191 mDeferredAction = null; 4192 } 4193 }; 4194 return; 4195 } 4196 4197 boolean beingCalledAfterUninstall = mDeferredAction != null; 4198 4199 if (success && !(beingCalledAfterUninstall && !mUninstallSuccessful)) { 4200 if (target != this && mDragInfo != null) { 4201 CellLayout parentCell = getParentCellLayoutForView(mDragInfo.cell); 4202 if (parentCell != null) { 4203 parentCell.removeView(mDragInfo.cell); 4204 } else if (LauncherAppState.isDogfoodBuild()) { 4205 throw new NullPointerException("mDragInfo.cell has null parent"); 4206 } 4207 if (mDragInfo.cell instanceof DropTarget) { 4208 mDragController.removeDropTarget((DropTarget) mDragInfo.cell); 4209 } 4210 } 4211 } else if (mDragInfo != null) { 4212 CellLayout cellLayout; 4213 if (mLauncher.isHotseatLayout(target)) { 4214 cellLayout = mLauncher.getHotseat().getLayout(); 4215 } else { 4216 cellLayout = getScreenWithId(mDragInfo.screenId); 4217 } 4218 if (cellLayout == null && LauncherAppState.isDogfoodBuild()) { 4219 throw new RuntimeException("Invalid state: cellLayout == null in " 4220 + "Workspace#onDropCompleted. Please file a bug. "); 4221 } 4222 if (cellLayout != null) { 4223 cellLayout.onDropChild(mDragInfo.cell); 4224 } 4225 } 4226 if ((d.cancelled || (beingCalledAfterUninstall && !mUninstallSuccessful)) 4227 && mDragInfo.cell != null) { 4228 mDragInfo.cell.setVisibility(VISIBLE); 4229 } 4230 mDragOutline = null; 4231 mDragInfo = null; 4232 } 4233 4234 public void deferCompleteDropAfterUninstallActivity() { 4235 mDeferDropAfterUninstall = true; 4236 } 4237 4238 /// maybe move this into a smaller part 4239 public void onUninstallActivityReturned(boolean success) { 4240 mDeferDropAfterUninstall = false; 4241 mUninstallSuccessful = success; 4242 if (mDeferredAction != null) { 4243 mDeferredAction.run(); 4244 } 4245 } 4246 4247 void updateItemLocationsInDatabase(CellLayout cl) { 4248 int count = cl.getShortcutsAndWidgets().getChildCount(); 4249 4250 long screenId = getIdForScreen(cl); 4251 int container = Favorites.CONTAINER_DESKTOP; 4252 4253 if (mLauncher.isHotseatLayout(cl)) { 4254 screenId = -1; 4255 container = Favorites.CONTAINER_HOTSEAT; 4256 } 4257 4258 for (int i = 0; i < count; i++) { 4259 View v = cl.getShortcutsAndWidgets().getChildAt(i); 4260 ItemInfo info = (ItemInfo) v.getTag(); 4261 // Null check required as the AllApps button doesn't have an item info 4262 if (info != null && info.requiresDbUpdate) { 4263 info.requiresDbUpdate = false; 4264 LauncherModel.modifyItemInDatabase(mLauncher, info, container, screenId, info.cellX, 4265 info.cellY, info.spanX, info.spanY); 4266 } 4267 } 4268 } 4269 4270 ArrayList<ComponentName> getUniqueComponents(boolean stripDuplicates, ArrayList<ComponentName> duplicates) { 4271 ArrayList<ComponentName> uniqueIntents = new ArrayList<ComponentName>(); 4272 getUniqueIntents((CellLayout) mLauncher.getHotseat().getLayout(), uniqueIntents, duplicates, false); 4273 int count = getChildCount(); 4274 for (int i = 0; i < count; i++) { 4275 CellLayout cl = (CellLayout) getChildAt(i); 4276 getUniqueIntents(cl, uniqueIntents, duplicates, false); 4277 } 4278 return uniqueIntents; 4279 } 4280 4281 void getUniqueIntents(CellLayout cl, ArrayList<ComponentName> uniqueIntents, 4282 ArrayList<ComponentName> duplicates, boolean stripDuplicates) { 4283 int count = cl.getShortcutsAndWidgets().getChildCount(); 4284 4285 ArrayList<View> children = new ArrayList<View>(); 4286 for (int i = 0; i < count; i++) { 4287 View v = cl.getShortcutsAndWidgets().getChildAt(i); 4288 children.add(v); 4289 } 4290 4291 for (int i = 0; i < count; i++) { 4292 View v = children.get(i); 4293 ItemInfo info = (ItemInfo) v.getTag(); 4294 // Null check required as the AllApps button doesn't have an item info 4295 if (info instanceof ShortcutInfo) { 4296 ShortcutInfo si = (ShortcutInfo) info; 4297 ComponentName cn = si.intent.getComponent(); 4298 4299 Uri dataUri = si.intent.getData(); 4300 // If dataUri is not null / empty or if this component isn't one that would 4301 // have previously showed up in the AllApps list, then this is a widget-type 4302 // shortcut, so ignore it. 4303 if (dataUri != null && !dataUri.equals(Uri.EMPTY)) { 4304 continue; 4305 } 4306 4307 if (!uniqueIntents.contains(cn)) { 4308 uniqueIntents.add(cn); 4309 } else { 4310 if (stripDuplicates) { 4311 cl.removeViewInLayout(v); 4312 LauncherModel.deleteItemFromDatabase(mLauncher, si); 4313 } 4314 if (duplicates != null) { 4315 duplicates.add(cn); 4316 } 4317 } 4318 } 4319 if (v instanceof FolderIcon) { 4320 FolderIcon fi = (FolderIcon) v; 4321 ArrayList<View> items = fi.getFolder().getItemsInReadingOrder(); 4322 for (int j = 0; j < items.size(); j++) { 4323 if (items.get(j).getTag() instanceof ShortcutInfo) { 4324 ShortcutInfo si = (ShortcutInfo) items.get(j).getTag(); 4325 ComponentName cn = si.intent.getComponent(); 4326 4327 Uri dataUri = si.intent.getData(); 4328 // If dataUri is not null / empty or if this component isn't one that would 4329 // have previously showed up in the AllApps list, then this is a widget-type 4330 // shortcut, so ignore it. 4331 if (dataUri != null && !dataUri.equals(Uri.EMPTY)) { 4332 continue; 4333 } 4334 4335 if (!uniqueIntents.contains(cn)) { 4336 uniqueIntents.add(cn); 4337 } else { 4338 if (stripDuplicates) { 4339 fi.getFolderInfo().remove(si); 4340 LauncherModel.deleteItemFromDatabase(mLauncher, si); 4341 } 4342 if (duplicates != null) { 4343 duplicates.add(cn); 4344 } 4345 } 4346 } 4347 } 4348 } 4349 } 4350 } 4351 4352 void saveWorkspaceToDb() { 4353 saveWorkspaceScreenToDb((CellLayout) mLauncher.getHotseat().getLayout()); 4354 int count = getChildCount(); 4355 for (int i = 0; i < count; i++) { 4356 CellLayout cl = (CellLayout) getChildAt(i); 4357 saveWorkspaceScreenToDb(cl); 4358 } 4359 } 4360 4361 void saveWorkspaceScreenToDb(CellLayout cl) { 4362 int count = cl.getShortcutsAndWidgets().getChildCount(); 4363 4364 long screenId = getIdForScreen(cl); 4365 int container = Favorites.CONTAINER_DESKTOP; 4366 4367 Hotseat hotseat = mLauncher.getHotseat(); 4368 if (mLauncher.isHotseatLayout(cl)) { 4369 screenId = -1; 4370 container = Favorites.CONTAINER_HOTSEAT; 4371 } 4372 4373 for (int i = 0; i < count; i++) { 4374 View v = cl.getShortcutsAndWidgets().getChildAt(i); 4375 ItemInfo info = (ItemInfo) v.getTag(); 4376 // Null check required as the AllApps button doesn't have an item info 4377 if (info != null) { 4378 int cellX = info.cellX; 4379 int cellY = info.cellY; 4380 if (container == Favorites.CONTAINER_HOTSEAT) { 4381 cellX = hotseat.getCellXFromOrder((int) info.screenId); 4382 cellY = hotseat.getCellYFromOrder((int) info.screenId); 4383 } 4384 LauncherModel.addItemToDatabase(mLauncher, info, container, screenId, cellX, 4385 cellY, false); 4386 } 4387 if (v instanceof FolderIcon) { 4388 FolderIcon fi = (FolderIcon) v; 4389 fi.getFolder().addItemLocationsInDatabase(); 4390 } 4391 } 4392 } 4393 4394 @Override 4395 public float getIntrinsicIconScaleFactor() { 4396 return 1f; 4397 } 4398 4399 @Override 4400 public boolean supportsFlingToDelete() { 4401 return true; 4402 } 4403 4404 @Override 4405 public boolean supportsAppInfoDropTarget() { 4406 return false; 4407 } 4408 4409 @Override 4410 public boolean supportsDeleteDropTarget() { 4411 return true; 4412 } 4413 4414 @Override 4415 public void onFlingToDelete(DragObject d, int x, int y, PointF vec) { 4416 // Do nothing 4417 } 4418 4419 @Override 4420 public void onFlingToDeleteCompleted() { 4421 // Do nothing 4422 } 4423 4424 public boolean isDropEnabled() { 4425 return true; 4426 } 4427 4428 @Override 4429 protected void onRestoreInstanceState(Parcelable state) { 4430 super.onRestoreInstanceState(state); 4431 Launcher.setScreen(mCurrentPage); 4432 } 4433 4434 @Override 4435 protected void dispatchRestoreInstanceState(SparseArray<Parcelable> container) { 4436 // We don't dispatch restoreInstanceState to our children using this code path. 4437 // Some pages will be restored immediately as their items are bound immediately, and 4438 // others we will need to wait until after their items are bound. 4439 mSavedStates = container; 4440 } 4441 4442 public void restoreInstanceStateForChild(int child) { 4443 if (mSavedStates != null) { 4444 mRestoredPages.add(child); 4445 CellLayout cl = (CellLayout) getChildAt(child); 4446 if (cl != null) { 4447 cl.restoreInstanceState(mSavedStates); 4448 } 4449 } 4450 } 4451 4452 public void restoreInstanceStateForRemainingPages() { 4453 int count = getChildCount(); 4454 for (int i = 0; i < count; i++) { 4455 if (!mRestoredPages.contains(i)) { 4456 restoreInstanceStateForChild(i); 4457 } 4458 } 4459 mRestoredPages.clear(); 4460 mSavedStates = null; 4461 } 4462 4463 @Override 4464 public void scrollLeft() { 4465 if (!workspaceInModalState() && !mIsSwitchingState) { 4466 super.scrollLeft(); 4467 } 4468 Folder openFolder = getOpenFolder(); 4469 if (openFolder != null) { 4470 openFolder.completeDragExit(); 4471 } 4472 } 4473 4474 @Override 4475 public void scrollRight() { 4476 if (!workspaceInModalState() && !mIsSwitchingState) { 4477 super.scrollRight(); 4478 } 4479 Folder openFolder = getOpenFolder(); 4480 if (openFolder != null) { 4481 openFolder.completeDragExit(); 4482 } 4483 } 4484 4485 @Override 4486 public boolean onEnterScrollArea(int x, int y, int direction) { 4487 // Ignore the scroll area if we are dragging over the hot seat 4488 boolean isPortrait = !LauncherAppState.isScreenLandscape(getContext()); 4489 if (mLauncher.getHotseat() != null && isPortrait) { 4490 Rect r = new Rect(); 4491 mLauncher.getHotseat().getHitRect(r); 4492 if (r.contains(x, y)) { 4493 return false; 4494 } 4495 } 4496 4497 boolean result = false; 4498 if (!workspaceInModalState() && !mIsSwitchingState && getOpenFolder() == null) { 4499 mInScrollArea = true; 4500 4501 final int page = getNextPage() + 4502 (direction == DragController.SCROLL_LEFT ? -1 : 1); 4503 // We always want to exit the current layout to ensure parity of enter / exit 4504 setCurrentDropLayout(null); 4505 4506 if (0 <= page && page < getChildCount()) { 4507 // Ensure that we are not dragging over to the custom content screen 4508 if (getScreenIdForPageIndex(page) == CUSTOM_CONTENT_SCREEN_ID) { 4509 return false; 4510 } 4511 4512 CellLayout layout = (CellLayout) getChildAt(page); 4513 setCurrentDragOverlappingLayout(layout); 4514 4515 // Workspace is responsible for drawing the edge glow on adjacent pages, 4516 // so we need to redraw the workspace when this may have changed. 4517 invalidate(); 4518 result = true; 4519 } 4520 } 4521 return result; 4522 } 4523 4524 @Override 4525 public boolean onExitScrollArea() { 4526 boolean result = false; 4527 if (mInScrollArea) { 4528 invalidate(); 4529 CellLayout layout = getCurrentDropLayout(); 4530 setCurrentDropLayout(layout); 4531 setCurrentDragOverlappingLayout(layout); 4532 4533 result = true; 4534 mInScrollArea = false; 4535 } 4536 return result; 4537 } 4538 4539 private void onResetScrollArea() { 4540 setCurrentDragOverlappingLayout(null); 4541 mInScrollArea = false; 4542 } 4543 4544 /** 4545 * Returns a specific CellLayout 4546 */ 4547 CellLayout getParentCellLayoutForView(View v) { 4548 ArrayList<CellLayout> layouts = getWorkspaceAndHotseatCellLayouts(); 4549 for (CellLayout layout : layouts) { 4550 if (layout.getShortcutsAndWidgets().indexOfChild(v) > -1) { 4551 return layout; 4552 } 4553 } 4554 return null; 4555 } 4556 4557 /** 4558 * Returns a list of all the CellLayouts in the workspace. 4559 */ 4560 ArrayList<CellLayout> getWorkspaceAndHotseatCellLayouts() { 4561 ArrayList<CellLayout> layouts = new ArrayList<CellLayout>(); 4562 int screenCount = getChildCount(); 4563 for (int screen = 0; screen < screenCount; screen++) { 4564 layouts.add(((CellLayout) getChildAt(screen))); 4565 } 4566 if (mLauncher.getHotseat() != null) { 4567 layouts.add(mLauncher.getHotseat().getLayout()); 4568 } 4569 return layouts; 4570 } 4571 4572 /** 4573 * We should only use this to search for specific children. Do not use this method to modify 4574 * ShortcutsAndWidgetsContainer directly. Includes ShortcutAndWidgetContainers from 4575 * the hotseat and workspace pages 4576 */ 4577 ArrayList<ShortcutAndWidgetContainer> getAllShortcutAndWidgetContainers() { 4578 ArrayList<ShortcutAndWidgetContainer> childrenLayouts = 4579 new ArrayList<ShortcutAndWidgetContainer>(); 4580 int screenCount = getChildCount(); 4581 for (int screen = 0; screen < screenCount; screen++) { 4582 childrenLayouts.add(((CellLayout) getChildAt(screen)).getShortcutsAndWidgets()); 4583 } 4584 if (mLauncher.getHotseat() != null) { 4585 childrenLayouts.add(mLauncher.getHotseat().getLayout().getShortcutsAndWidgets()); 4586 } 4587 return childrenLayouts; 4588 } 4589 4590 public Folder getFolderForTag(final Object tag) { 4591 return (Folder) getFirstMatch(new ItemOperator() { 4592 4593 @Override 4594 public boolean evaluate(ItemInfo info, View v, View parent) { 4595 return (v instanceof Folder) && (((Folder) v).getInfo() == tag) 4596 && ((Folder) v).getInfo().opened; 4597 } 4598 }); 4599 } 4600 4601 public View getViewForTag(final Object tag) { 4602 return getFirstMatch(new ItemOperator() { 4603 4604 @Override 4605 public boolean evaluate(ItemInfo info, View v, View parent) { 4606 return info == tag; 4607 } 4608 }); 4609 } 4610 4611 public LauncherAppWidgetHostView getWidgetForAppWidgetId(final int appWidgetId) { 4612 return (LauncherAppWidgetHostView) getFirstMatch(new ItemOperator() { 4613 4614 @Override 4615 public boolean evaluate(ItemInfo info, View v, View parent) { 4616 return (info instanceof LauncherAppWidgetInfo) && 4617 ((LauncherAppWidgetInfo) info).appWidgetId == appWidgetId; 4618 } 4619 }); 4620 } 4621 4622 private View getFirstMatch(final ItemOperator operator) { 4623 final View[] value = new View[1]; 4624 mapOverItems(MAP_NO_RECURSE, new ItemOperator() { 4625 @Override 4626 public boolean evaluate(ItemInfo info, View v, View parent) { 4627 if (operator.evaluate(info, v, parent)) { 4628 value[0] = v; 4629 return true; 4630 } 4631 return false; 4632 } 4633 }); 4634 return value[0]; 4635 } 4636 4637 void clearDropTargets() { 4638 mapOverItems(MAP_NO_RECURSE, new ItemOperator() { 4639 @Override 4640 public boolean evaluate(ItemInfo info, View v, View parent) { 4641 if (v instanceof DropTarget) { 4642 mDragController.removeDropTarget((DropTarget) v); 4643 } 4644 // not done, process all the shortcuts 4645 return false; 4646 } 4647 }); 4648 } 4649 4650 // Removes ALL items that match a given package name, this is usually called when a package 4651 // has been removed and we want to remove all components (widgets, shortcuts, apps) that 4652 // belong to that package. 4653 void removeItemsByPackageName(final ArrayList<String> packages, final UserHandleCompat user) { 4654 final HashSet<String> packageNames = new HashSet<String>(); 4655 packageNames.addAll(packages); 4656 4657 // Filter out all the ItemInfos that this is going to affect 4658 final HashSet<ItemInfo> infos = new HashSet<ItemInfo>(); 4659 final HashSet<ComponentName> cns = new HashSet<ComponentName>(); 4660 ArrayList<CellLayout> cellLayouts = getWorkspaceAndHotseatCellLayouts(); 4661 for (CellLayout layoutParent : cellLayouts) { 4662 ViewGroup layout = layoutParent.getShortcutsAndWidgets(); 4663 int childCount = layout.getChildCount(); 4664 for (int i = 0; i < childCount; ++i) { 4665 View view = layout.getChildAt(i); 4666 infos.add((ItemInfo) view.getTag()); 4667 } 4668 } 4669 LauncherModel.ItemInfoFilter filter = new LauncherModel.ItemInfoFilter() { 4670 @Override 4671 public boolean filterItem(ItemInfo parent, ItemInfo info, 4672 ComponentName cn) { 4673 if (packageNames.contains(cn.getPackageName()) 4674 && info.user.equals(user)) { 4675 cns.add(cn); 4676 return true; 4677 } 4678 return false; 4679 } 4680 }; 4681 LauncherModel.filterItemInfos(infos, filter); 4682 4683 // Remove the affected components 4684 removeItemsByComponentName(cns, user); 4685 } 4686 4687 // Removes items that match the application info specified, when applications are removed 4688 // as a part of an update, this is called to ensure that other widgets and application 4689 // shortcuts are not removed. 4690 void removeItemsByApplicationInfo(final ArrayList<AppInfo> appInfos, UserHandleCompat user) { 4691 // Just create a hash table of all the specific components that this will affect 4692 HashSet<ComponentName> cns = new HashSet<ComponentName>(); 4693 for (AppInfo info : appInfos) { 4694 cns.add(info.componentName); 4695 } 4696 4697 // Remove all the things 4698 removeItemsByComponentName(cns, user); 4699 } 4700 4701 void removeItemsByComponentName(final HashSet<ComponentName> componentNames, 4702 final UserHandleCompat user) { 4703 ArrayList<CellLayout> cellLayouts = getWorkspaceAndHotseatCellLayouts(); 4704 for (final CellLayout layoutParent: cellLayouts) { 4705 final ViewGroup layout = layoutParent.getShortcutsAndWidgets(); 4706 4707 final HashMap<ItemInfo, View> children = new HashMap<ItemInfo, View>(); 4708 for (int j = 0; j < layout.getChildCount(); j++) { 4709 final View view = layout.getChildAt(j); 4710 children.put((ItemInfo) view.getTag(), view); 4711 } 4712 4713 final ArrayList<View> childrenToRemove = new ArrayList<View>(); 4714 final HashMap<FolderInfo, ArrayList<ShortcutInfo>> folderAppsToRemove = 4715 new HashMap<FolderInfo, ArrayList<ShortcutInfo>>(); 4716 LauncherModel.ItemInfoFilter filter = new LauncherModel.ItemInfoFilter() { 4717 @Override 4718 public boolean filterItem(ItemInfo parent, ItemInfo info, 4719 ComponentName cn) { 4720 if (parent instanceof FolderInfo) { 4721 if (componentNames.contains(cn) && info.user.equals(user)) { 4722 FolderInfo folder = (FolderInfo) parent; 4723 ArrayList<ShortcutInfo> appsToRemove; 4724 if (folderAppsToRemove.containsKey(folder)) { 4725 appsToRemove = folderAppsToRemove.get(folder); 4726 } else { 4727 appsToRemove = new ArrayList<ShortcutInfo>(); 4728 folderAppsToRemove.put(folder, appsToRemove); 4729 } 4730 appsToRemove.add((ShortcutInfo) info); 4731 return true; 4732 } 4733 } else { 4734 if (componentNames.contains(cn) && info.user.equals(user)) { 4735 childrenToRemove.add(children.get(info)); 4736 return true; 4737 } 4738 } 4739 return false; 4740 } 4741 }; 4742 LauncherModel.filterItemInfos(children.keySet(), filter); 4743 4744 // Remove all the apps from their folders 4745 for (FolderInfo folder : folderAppsToRemove.keySet()) { 4746 ArrayList<ShortcutInfo> appsToRemove = folderAppsToRemove.get(folder); 4747 for (ShortcutInfo info : appsToRemove) { 4748 folder.remove(info); 4749 } 4750 } 4751 4752 // Remove all the other children 4753 for (View child : childrenToRemove) { 4754 // Note: We can not remove the view directly from CellLayoutChildren as this 4755 // does not re-mark the spaces as unoccupied. 4756 layoutParent.removeViewInLayout(child); 4757 if (child instanceof DropTarget) { 4758 mDragController.removeDropTarget((DropTarget) child); 4759 } 4760 } 4761 4762 if (childrenToRemove.size() > 0) { 4763 layout.requestLayout(); 4764 layout.invalidate(); 4765 } 4766 } 4767 4768 // Strip all the empty screens 4769 stripEmptyScreens(); 4770 } 4771 4772 private void updateShortcut(HashMap<ComponentName, AppInfo> appsMap, ItemInfo info, 4773 View child) { 4774 ComponentName cn = info.getIntent().getComponent(); 4775 if (info.getRestoredIntent() != null) { 4776 cn = info.getRestoredIntent().getComponent(); 4777 } 4778 if (cn != null) { 4779 AppInfo appInfo = appsMap.get(cn); 4780 if ((appInfo != null) && LauncherModel.isShortcutInfoUpdateable(info)) { 4781 ShortcutInfo shortcutInfo = (ShortcutInfo) info; 4782 BubbleTextView shortcut = (BubbleTextView) child; 4783 shortcutInfo.restore(); 4784 shortcutInfo.updateIcon(mIconCache); 4785 shortcutInfo.title = appInfo.title.toString(); 4786 shortcutInfo.contentDescription = appInfo.contentDescription; 4787 shortcut.applyFromShortcutInfo(shortcutInfo, mIconCache, true); 4788 } 4789 } 4790 } 4791 4792 interface ItemOperator { 4793 /** 4794 * Process the next itemInfo, possibly with side-effect on {@link ItemOperator#value}. 4795 * 4796 * @param info info for the shortcut 4797 * @param view view for the shortcut 4798 * @param parent containing folder, or null 4799 * @return true if done, false to continue the map 4800 */ 4801 public boolean evaluate(ItemInfo info, View view, View parent); 4802 } 4803 4804 /** 4805 * Map the operator over the shortcuts and widgets, return the first-non-null value. 4806 * 4807 * @param recurse true: iterate over folder children. false: op get the folders themselves. 4808 * @param op the operator to map over the shortcuts 4809 */ 4810 void mapOverItems(boolean recurse, ItemOperator op) { 4811 ArrayList<ShortcutAndWidgetContainer> containers = getAllShortcutAndWidgetContainers(); 4812 final int containerCount = containers.size(); 4813 for (int containerIdx = 0; containerIdx < containerCount; containerIdx++) { 4814 ShortcutAndWidgetContainer container = containers.get(containerIdx); 4815 // map over all the shortcuts on the workspace 4816 final int itemCount = container.getChildCount(); 4817 for (int itemIdx = 0; itemIdx < itemCount; itemIdx++) { 4818 View item = container.getChildAt(itemIdx); 4819 ItemInfo info = (ItemInfo) item.getTag(); 4820 if (recurse && info instanceof FolderInfo && item instanceof FolderIcon) { 4821 FolderIcon folder = (FolderIcon) item; 4822 ArrayList<View> folderChildren = folder.getFolder().getItemsInReadingOrder(); 4823 // map over all the children in the folder 4824 final int childCount = folderChildren.size(); 4825 for (int childIdx = 0; childIdx < childCount; childIdx++) { 4826 View child = folderChildren.get(childIdx); 4827 info = (ItemInfo) child.getTag(); 4828 if (op.evaluate(info, child, folder)) { 4829 return; 4830 } 4831 } 4832 } else { 4833 if (op.evaluate(info, item, null)) { 4834 return; 4835 } 4836 } 4837 } 4838 } 4839 } 4840 4841 void updateShortcutsAndWidgets(ArrayList<AppInfo> apps) { 4842 // Create a map of the apps to test against 4843 final HashMap<ComponentName, AppInfo> appsMap = new HashMap<ComponentName, AppInfo>(); 4844 final HashSet<String> pkgNames = new HashSet<String>(); 4845 for (AppInfo ai : apps) { 4846 appsMap.put(ai.componentName, ai); 4847 pkgNames.add(ai.componentName.getPackageName()); 4848 } 4849 4850 mapOverItems(MAP_RECURSE, new ItemOperator() { 4851 @Override 4852 public boolean evaluate(ItemInfo info, View v, View parent) { 4853 if (info instanceof ShortcutInfo) { 4854 updateShortcut(appsMap, info, v); 4855 if (parent != null) { 4856 parent.invalidate(); 4857 } 4858 } 4859 // process all the shortcuts 4860 return false; 4861 } 4862 }); 4863 4864 restorePendingWidgets(pkgNames); 4865 } 4866 4867 public void removeAbandonedPromise(BubbleTextView abandonedIcon, UserHandleCompat user) { 4868 if (abandonedIcon.getTag() != null && abandonedIcon.getTag() instanceof ShortcutInfo) { 4869 final ShortcutInfo shortcut = (ShortcutInfo) abandonedIcon.getTag(); 4870 if (shortcut.isAbandoned()) { 4871 HashSet<ComponentName> cns = new HashSet<ComponentName>(1); 4872 cns.add(shortcut.getRestoredIntent().getComponent()); 4873 LauncherModel.deleteItemFromDatabase(mLauncher, shortcut); 4874 removeItemsByComponentName(cns, user); 4875 } 4876 } 4877 } 4878 4879 public void updatePackageState(ArrayList<PackageInstallInfo> installInfos) { 4880 HashSet<String> completedPackages = new HashSet<>(); 4881 4882 for (final PackageInstallInfo installInfo : installInfos) { 4883 mapOverItems(MAP_RECURSE, new ItemOperator() { 4884 @Override 4885 public boolean evaluate(ItemInfo info, View v, View parent) { 4886 if (info instanceof ShortcutInfo 4887 && ((ShortcutInfo) info).isPromiseFor(installInfo.packageName) 4888 && v instanceof BubbleTextView) { 4889 ((ShortcutInfo) info).setProgress(installInfo.progress); 4890 ((ShortcutInfo) info).setState(installInfo.state); 4891 ((BubbleTextView)v).applyState(); 4892 } 4893 // process all the shortcuts 4894 return false; 4895 } 4896 }); 4897 4898 if (installInfo.state == ShortcutInfo.PACKAGE_STATE_DEFAULT) { 4899 completedPackages.add(installInfo.packageName); 4900 } 4901 } 4902 4903 if (!completedPackages.isEmpty()) { 4904 restorePendingWidgets(completedPackages); 4905 } 4906 } 4907 4908 private void restorePendingWidgets(final Set<String> installedPackaged) { 4909 final AtomicBoolean widgetsChanged = new AtomicBoolean(false); 4910 // Iterate non recursively as widgets can't be inside a folder. 4911 mapOverItems(MAP_NO_RECURSE, new ItemOperator() { 4912 4913 @Override 4914 public boolean evaluate(ItemInfo info, View v, View parent) { 4915 if (info instanceof LauncherAppWidgetInfo) { 4916 LauncherAppWidgetInfo widgetInfo = (LauncherAppWidgetInfo) info; 4917 if (widgetInfo.hasRestoreFlag(LauncherAppWidgetInfo.FLAG_PROVIDER_NOT_READY) 4918 && installedPackaged.contains(widgetInfo.providerName.getPackageName())) { 4919 widgetsChanged.set(true); 4920 } 4921 } 4922 // process all the widget 4923 return false; 4924 } 4925 }); 4926 if (widgetsChanged.get()) { 4927 // Reload layout and update widget status 4928 // TODO instead of full reload, just update the specific widgets 4929 getContext().getContentResolver() 4930 .notifyChange(LauncherSettings.Favorites.CONTENT_URI, null); 4931 } 4932 } 4933 4934 private void moveToScreen(int page, boolean animate) { 4935 if (!workspaceInModalState()) { 4936 if (animate) { 4937 snapToPage(page); 4938 } else { 4939 setCurrentPage(page); 4940 } 4941 } 4942 View child = getChildAt(page); 4943 if (child != null) { 4944 child.requestFocus(); 4945 } 4946 } 4947 4948 void moveToDefaultScreen(boolean animate) { 4949 moveToScreen(mDefaultPage, animate); 4950 } 4951 4952 void moveToCustomContentScreen(boolean animate) { 4953 if (hasCustomContent()) { 4954 int ccIndex = getPageIndexForScreenId(CUSTOM_CONTENT_SCREEN_ID); 4955 if (animate) { 4956 snapToPage(ccIndex); 4957 } else { 4958 setCurrentPage(ccIndex); 4959 } 4960 View child = getChildAt(ccIndex); 4961 if (child != null) { 4962 child.requestFocus(); 4963 } 4964 } 4965 exitWidgetResizeMode(); 4966 } 4967 4968 @Override 4969 protected PageIndicator.PageMarkerResources getPageIndicatorMarker(int pageIndex) { 4970 long screenId = getScreenIdForPageIndex(pageIndex); 4971 if (screenId == EXTRA_EMPTY_SCREEN_ID) { 4972 int count = mScreenOrder.size() - numCustomPages(); 4973 if (count > 1) { 4974 return new PageIndicator.PageMarkerResources(R.drawable.ic_pageindicator_current, 4975 R.drawable.ic_pageindicator_add); 4976 } 4977 } 4978 4979 return super.getPageIndicatorMarker(pageIndex); 4980 } 4981 4982 @Override 4983 public void syncPages() { 4984 } 4985 4986 @Override 4987 public void syncPageItems(int page, boolean immediate) { 4988 } 4989 4990 protected String getPageIndicatorDescription() { 4991 String settings = getResources().getString(R.string.settings_button_text); 4992 return getCurrentPageDescription() + ", " + settings; 4993 } 4994 4995 protected String getCurrentPageDescription() { 4996 int page = (mNextPage != INVALID_PAGE) ? mNextPage : mCurrentPage; 4997 int delta = numCustomPages(); 4998 if (hasCustomContent() && getNextPage() == 0) { 4999 return mCustomContentDescription; 5000 } 5001 return String.format(getContext().getString(R.string.workspace_scroll_format), 5002 page + 1 - delta, getChildCount() - delta); 5003 } 5004 5005 public void getLocationInDragLayer(int[] loc) { 5006 mLauncher.getDragLayer().getLocationInDragLayer(this, loc); 5007 } 5008} 5009