Workspace.java revision 4cbf046bf9fd1b4a40563a960a758e0a02b90538
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.Handler; 49import android.os.IBinder; 50import android.os.Parcelable; 51import android.support.v4.view.ViewCompat; 52import android.util.AttributeSet; 53import android.util.Log; 54import android.util.SparseArray; 55import android.view.Choreographer; 56import android.view.Display; 57import android.view.MotionEvent; 58import android.view.View; 59import android.view.ViewGroup; 60import android.view.accessibility.AccessibilityManager; 61import android.view.animation.DecelerateInterpolator; 62import android.view.animation.Interpolator; 63import android.widget.TextView; 64 65import com.android.launcher3.FolderIcon.FolderRingAnimator; 66import com.android.launcher3.Launcher.CustomContentCallbacks; 67import com.android.launcher3.LauncherSettings.Favorites; 68import com.android.launcher3.compat.PackageInstallerCompat.PackageInstallInfo; 69import com.android.launcher3.compat.UserHandleCompat; 70 71import java.util.ArrayList; 72import java.util.HashMap; 73import java.util.HashSet; 74import java.util.Iterator; 75import java.util.Set; 76import java.util.concurrent.atomic.AtomicInteger; 77 78/** 79 * The workspace is a wide area with a wallpaper and a finite number of pages. 80 * Each page contains a number of icons, folders or widgets the user can 81 * interact with. A workspace is meant to be used with a fixed width only. 82 */ 83public class Workspace extends SmoothPagedView 84 implements DropTarget, DragSource, DragScroller, View.OnTouchListener, 85 DragController.DragListener, LauncherTransitionable, ViewGroup.OnHierarchyChangeListener, 86 Insettable { 87 private static final String TAG = "Launcher.Workspace"; 88 89 // Y rotation to apply to the workspace screens 90 private static final float WORKSPACE_OVERSCROLL_ROTATION = 24f; 91 92 private static final int CHILDREN_OUTLINE_FADE_OUT_DELAY = 0; 93 private static final int CHILDREN_OUTLINE_FADE_OUT_DURATION = 375; 94 private static final int CHILDREN_OUTLINE_FADE_IN_DURATION = 100; 95 96 protected static final int SNAP_OFF_EMPTY_SCREEN_DURATION = 400; 97 protected static final int FADE_EMPTY_SCREEN_DURATION = 150; 98 99 private static final int BACKGROUND_FADE_OUT_DURATION = 350; 100 private static final int ADJACENT_SCREEN_DROP_DURATION = 300; 101 private static final int FLING_THRESHOLD_VELOCITY = 500; 102 103 private static final float ALPHA_CUTOFF_THRESHOLD = 0.01f; 104 105 static final boolean MAP_NO_RECURSE = false; 106 static final boolean MAP_RECURSE = true; 107 108 // These animators are used to fade the children's outlines 109 private ObjectAnimator mChildrenOutlineFadeInAnimation; 110 private ObjectAnimator mChildrenOutlineFadeOutAnimation; 111 private float mChildrenOutlineAlpha = 0; 112 113 // These properties refer to the background protection gradient used for AllApps and Customize 114 private ValueAnimator mBackgroundFadeInAnimation; 115 private ValueAnimator mBackgroundFadeOutAnimation; 116 117 private static final long CUSTOM_CONTENT_GESTURE_DELAY = 200; 118 private long mTouchDownTime = -1; 119 private long mCustomContentShowTime = -1; 120 121 private LayoutTransition mLayoutTransition; 122 private final WallpaperManager mWallpaperManager; 123 private IBinder mWindowToken; 124 125 private int mOriginalDefaultPage; 126 private int mDefaultPage; 127 128 private ShortcutAndWidgetContainer mDragSourceInternal; 129 private static boolean sAccessibilityEnabled; 130 131 // The screen id used for the empty screen always present to the right. 132 final static long EXTRA_EMPTY_SCREEN_ID = -201; 133 private final static long CUSTOM_CONTENT_SCREEN_ID = -301; 134 135 private HashMap<Long, CellLayout> mWorkspaceScreens = new HashMap<Long, CellLayout>(); 136 private ArrayList<Long> mScreenOrder = new ArrayList<Long>(); 137 138 private Runnable mRemoveEmptyScreenRunnable; 139 private boolean mDeferRemoveExtraEmptyScreen = false; 140 141 /** 142 * CellInfo for the cell that is currently being dragged 143 */ 144 private CellLayout.CellInfo mDragInfo; 145 146 /** 147 * Target drop area calculated during last acceptDrop call. 148 */ 149 private int[] mTargetCell = new int[2]; 150 private int mDragOverX = -1; 151 private int mDragOverY = -1; 152 153 static Rect mLandscapeCellLayoutMetrics = null; 154 static Rect mPortraitCellLayoutMetrics = null; 155 156 CustomContentCallbacks mCustomContentCallbacks; 157 boolean mCustomContentShowing; 158 private float mLastCustomContentScrollProgress = -1f; 159 private String mCustomContentDescription = ""; 160 161 /** 162 * The CellLayout that is currently being dragged over 163 */ 164 private CellLayout mDragTargetLayout = null; 165 /** 166 * The CellLayout that we will show as glowing 167 */ 168 private CellLayout mDragOverlappingLayout = null; 169 170 /** 171 * The CellLayout which will be dropped to 172 */ 173 private CellLayout mDropToLayout = null; 174 175 private Launcher mLauncher; 176 private IconCache mIconCache; 177 private DragController mDragController; 178 179 // These are temporary variables to prevent having to allocate a new object just to 180 // return an (x, y) value from helper functions. Do NOT use them to maintain other state. 181 private int[] mTempCell = new int[2]; 182 private int[] mTempPt = new int[2]; 183 private int[] mTempEstimate = new int[2]; 184 private float[] mDragViewVisualCenter = new float[2]; 185 private float[] mTempCellLayoutCenterCoordinates = new float[2]; 186 private Matrix mTempInverseMatrix = new Matrix(); 187 188 private SpringLoadedDragController mSpringLoadedDragController; 189 private float mSpringLoadedShrinkFactor; 190 private float mOverviewModeShrinkFactor; 191 192 // State variable that indicates whether the pages are small (ie when you're 193 // in all apps or customize mode) 194 195 enum State { NORMAL, NORMAL_HIDDEN, SPRING_LOADED, OVERVIEW, OVERVIEW_HIDDEN}; 196 private State mState = State.NORMAL; 197 private boolean mIsSwitchingState = false; 198 199 boolean mAnimatingViewIntoPlace = false; 200 boolean mIsDragOccuring = false; 201 boolean mChildrenLayersEnabled = true; 202 203 private boolean mStripScreensOnPageStopMoving = false; 204 205 /** Is the user is dragging an item near the edge of a page? */ 206 private boolean mInScrollArea = false; 207 208 private HolographicOutlineHelper mOutlineHelper; 209 private Bitmap mDragOutline = null; 210 private static final Rect sTempRect = new Rect(); 211 private final int[] mTempXY = new int[2]; 212 private int[] mTempVisiblePagesRange = new int[2]; 213 private boolean mOverscrollEffectSet; 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 private final Canvas mCanvas = new Canvas(); 240 241 // Variables relating to touch disambiguation (scrolling workspace vs. scrolling a widget) 242 private float mXDown; 243 private float mYDown; 244 final static float START_DAMPING_TOUCH_SLOP_ANGLE = (float) Math.PI / 6; 245 final static float MAX_SWIPE_ANGLE = (float) Math.PI / 3; 246 final static float TOUCH_SLOP_DAMPING_FACTOR = 4; 247 248 // Relating to the animation of items being dropped externally 249 public static final int ANIMATE_INTO_POSITION_AND_DISAPPEAR = 0; 250 public static final int ANIMATE_INTO_POSITION_AND_REMAIN = 1; 251 public static final int ANIMATE_INTO_POSITION_AND_RESIZE = 2; 252 public static final int COMPLETE_TWO_STAGE_WIDGET_DROP_ANIMATION = 3; 253 public static final int CANCEL_TWO_STAGE_WIDGET_DROP_ANIMATION = 4; 254 255 // Related to dragging, folder creation and reordering 256 private static final int DRAG_MODE_NONE = 0; 257 private static final int DRAG_MODE_CREATE_FOLDER = 1; 258 private static final int DRAG_MODE_ADD_TO_FOLDER = 2; 259 private static final int DRAG_MODE_REORDER = 3; 260 private int mDragMode = DRAG_MODE_NONE; 261 private int mLastReorderX = -1; 262 private int mLastReorderY = -1; 263 264 private SparseArray<Parcelable> mSavedStates; 265 private final ArrayList<Integer> mRestoredPages = new ArrayList<Integer>(); 266 267 // These variables are used for storing the initial and final values during workspace animations 268 private int mSavedScrollX; 269 private float mSavedRotationY; 270 private float mSavedTranslationX; 271 272 private float mCurrentScale; 273 private float mNewScale; 274 private float[] mOldBackgroundAlphas; 275 private float[] mOldAlphas; 276 private float[] mNewBackgroundAlphas; 277 private float[] mNewAlphas; 278 private int mLastChildCount = -1; 279 private float mTransitionProgress; 280 281 float mOverScrollEffect = 0f; 282 283 private Runnable mDeferredAction; 284 private boolean mDeferDropAfterUninstall; 285 private boolean mUninstallSuccessful; 286 287 private final Runnable mBindPages = new Runnable() { 288 @Override 289 public void run() { 290 mLauncher.getModel().bindRemainingSynchronousPages(); 291 } 292 }; 293 294 /** 295 * Used to inflate the Workspace from XML. 296 * 297 * @param context The application's context. 298 * @param attrs The attributes set containing the Workspace's customization values. 299 */ 300 public Workspace(Context context, AttributeSet attrs) { 301 this(context, attrs, 0); 302 } 303 304 /** 305 * Used to inflate the Workspace from XML. 306 * 307 * @param context The application's context. 308 * @param attrs The attributes set containing the Workspace's customization values. 309 * @param defStyle Unused. 310 */ 311 public Workspace(Context context, AttributeSet attrs, int defStyle) { 312 super(context, attrs, defStyle); 313 mContentIsRefreshable = false; 314 315 mOutlineHelper = HolographicOutlineHelper.obtain(context); 316 317 mDragEnforcer = new DropTarget.DragEnforcer(context); 318 // With workspace, data is available straight from the get-go 319 setDataIsReady(); 320 321 mLauncher = (Launcher) context; 322 final Resources res = getResources(); 323 mWorkspaceFadeInAdjacentScreens = LauncherAppState.getInstance().getDynamicGrid(). 324 getDeviceProfile().shouldFadeAdjacentWorkspaceScreens(); 325 mFadeInAdjacentScreens = false; 326 mWallpaperManager = WallpaperManager.getInstance(context); 327 328 LauncherAppState app = LauncherAppState.getInstance(); 329 DeviceProfile grid = app.getDynamicGrid().getDeviceProfile(); 330 TypedArray a = context.obtainStyledAttributes(attrs, 331 R.styleable.Workspace, defStyle, 0); 332 mSpringLoadedShrinkFactor = 333 res.getInteger(R.integer.config_workspaceSpringLoadShrinkPercentage) / 100.0f; 334 mOverviewModeShrinkFactor = grid.getOverviewModeScale(); 335 mCameraDistance = res.getInteger(R.integer.config_cameraDistance); 336 mOriginalDefaultPage = mDefaultPage = a.getInt(R.styleable.Workspace_defaultScreen, 1); 337 a.recycle(); 338 339 setOnHierarchyChangeListener(this); 340 setHapticFeedbackEnabled(false); 341 342 initWorkspace(); 343 344 // Disable multitouch across the workspace/all apps/customize tray 345 setMotionEventSplittingEnabled(true); 346 setImportantForAccessibility(View.IMPORTANT_FOR_ACCESSIBILITY_YES); 347 } 348 349 @Override 350 public void setInsets(Rect insets) { 351 mInsets.set(insets); 352 353 CellLayout customScreen = getScreenWithId(CUSTOM_CONTENT_SCREEN_ID); 354 if (customScreen != null) { 355 View customContent = customScreen.getShortcutsAndWidgets().getChildAt(0); 356 if (customContent instanceof Insettable) { 357 ((Insettable) customContent).setInsets(mInsets); 358 } 359 } 360 } 361 362 // estimate the size of a widget with spans hSpan, vSpan. return MAX_VALUE for each 363 // dimension if unsuccessful 364 public int[] estimateItemSize(int hSpan, int vSpan, 365 ItemInfo itemInfo, boolean springLoaded) { 366 int[] size = new int[2]; 367 if (getChildCount() > 0) { 368 // Use the first non-custom page to estimate the child position 369 CellLayout cl = (CellLayout) getChildAt(numCustomPages()); 370 Rect r = estimateItemPosition(cl, itemInfo, 0, 0, hSpan, vSpan); 371 size[0] = r.width(); 372 size[1] = r.height(); 373 if (springLoaded) { 374 size[0] *= mSpringLoadedShrinkFactor; 375 size[1] *= mSpringLoadedShrinkFactor; 376 } 377 return size; 378 } else { 379 size[0] = Integer.MAX_VALUE; 380 size[1] = Integer.MAX_VALUE; 381 return size; 382 } 383 } 384 385 public Rect estimateItemPosition(CellLayout cl, ItemInfo pendingInfo, 386 int hCell, int vCell, int hSpan, int vSpan) { 387 Rect r = new Rect(); 388 cl.cellToRect(hCell, vCell, hSpan, vSpan, r); 389 return r; 390 } 391 392 public void onDragStart(final DragSource source, Object info, int dragAction) { 393 mIsDragOccuring = true; 394 updateChildrenLayersEnabled(false); 395 mLauncher.lockScreenOrientation(); 396 mLauncher.onInteractionBegin(); 397 setChildrenBackgroundAlphaMultipliers(1f); 398 // Prevent any Un/InstallShortcutReceivers from updating the db while we are dragging 399 InstallShortcutReceiver.enableInstallQueue(); 400 UninstallShortcutReceiver.enableUninstallQueue(); 401 post(new Runnable() { 402 @Override 403 public void run() { 404 if (mIsDragOccuring) { 405 mDeferRemoveExtraEmptyScreen = false; 406 addExtraEmptyScreenOnDrag(); 407 } 408 } 409 }); 410 } 411 412 413 public void deferRemoveExtraEmptyScreen() { 414 mDeferRemoveExtraEmptyScreen = true; 415 } 416 417 public void onDragEnd() { 418 if (!mDeferRemoveExtraEmptyScreen) { 419 removeExtraEmptyScreen(true, mDragSourceInternal != null); 420 } 421 422 mIsDragOccuring = false; 423 updateChildrenLayersEnabled(false); 424 mLauncher.unlockScreenOrientation(false); 425 426 // Re-enable any Un/InstallShortcutReceiver and now process any queued items 427 InstallShortcutReceiver.disableAndFlushInstallQueue(getContext()); 428 UninstallShortcutReceiver.disableAndFlushUninstallQueue(getContext()); 429 430 mDragSourceInternal = null; 431 mLauncher.onInteractionEnd(); 432 } 433 434 /** 435 * Initializes various states for this workspace. 436 */ 437 protected void initWorkspace() { 438 mCurrentPage = mDefaultPage; 439 Launcher.setScreen(mCurrentPage); 440 LauncherAppState app = LauncherAppState.getInstance(); 441 DeviceProfile grid = app.getDynamicGrid().getDeviceProfile(); 442 mIconCache = app.getIconCache(); 443 setWillNotDraw(false); 444 setClipChildren(false); 445 setClipToPadding(false); 446 setChildrenDrawnWithCacheEnabled(true); 447 448 setMinScale(mOverviewModeShrinkFactor); 449 setupLayoutTransition(); 450 451 mWallpaperOffset = new WallpaperOffsetInterpolator(); 452 Display display = mLauncher.getWindowManager().getDefaultDisplay(); 453 display.getSize(mDisplaySize); 454 455 mMaxDistanceForFolderCreation = (0.55f * grid.iconSizePx); 456 mFlingThresholdVelocity = (int) (FLING_THRESHOLD_VELOCITY * mDensity); 457 458 // Set the wallpaper dimensions when Launcher starts up 459 setWallpaperDimension(); 460 } 461 462 private void setupLayoutTransition() { 463 // We want to show layout transitions when pages are deleted, to close the gap. 464 mLayoutTransition = new LayoutTransition(); 465 mLayoutTransition.enableTransitionType(LayoutTransition.DISAPPEARING); 466 mLayoutTransition.enableTransitionType(LayoutTransition.CHANGE_DISAPPEARING); 467 mLayoutTransition.disableTransitionType(LayoutTransition.APPEARING); 468 mLayoutTransition.disableTransitionType(LayoutTransition.CHANGE_APPEARING); 469 setLayoutTransition(mLayoutTransition); 470 } 471 472 void enableLayoutTransitions() { 473 setLayoutTransition(mLayoutTransition); 474 } 475 void disableLayoutTransitions() { 476 setLayoutTransition(null); 477 } 478 479 @Override 480 protected int getScrollMode() { 481 return SmoothPagedView.X_LARGE_MODE; 482 } 483 484 @Override 485 public void onChildViewAdded(View parent, View child) { 486 if (!(child instanceof CellLayout)) { 487 throw new IllegalArgumentException("A Workspace can only have CellLayout children."); 488 } 489 CellLayout cl = ((CellLayout) child); 490 cl.setOnInterceptTouchListener(this); 491 cl.setClickable(true); 492 cl.setImportantForAccessibility(ViewCompat.IMPORTANT_FOR_ACCESSIBILITY_NO); 493 super.onChildViewAdded(parent, child); 494 } 495 496 protected boolean shouldDrawChild(View child) { 497 final CellLayout cl = (CellLayout) child; 498 return super.shouldDrawChild(child) && 499 (mIsSwitchingState || 500 cl.getShortcutsAndWidgets().getAlpha() > 0 || 501 cl.getBackgroundAlpha() > 0); 502 } 503 504 /** 505 * @return The open folder on the current screen, or null if there is none 506 */ 507 Folder getOpenFolder() { 508 DragLayer dragLayer = mLauncher.getDragLayer(); 509 int count = dragLayer.getChildCount(); 510 for (int i = 0; i < count; i++) { 511 View child = dragLayer.getChildAt(i); 512 if (child instanceof Folder) { 513 Folder folder = (Folder) child; 514 if (folder.getInfo().opened) 515 return folder; 516 } 517 } 518 return null; 519 } 520 521 boolean isTouchActive() { 522 return mTouchState != TOUCH_STATE_REST; 523 } 524 525 public void removeAllWorkspaceScreens() { 526 // Disable all layout transitions before removing all pages to ensure that we don't get the 527 // transition animations competing with us changing the scroll when we add pages or the 528 // custom content screen 529 disableLayoutTransitions(); 530 531 // Since we increment the current page when we call addCustomContentPage via bindScreens 532 // (and other places), we need to adjust the current page back when we clear the pages 533 if (hasCustomContent()) { 534 removeCustomContentPage(); 535 } 536 537 // Remove the pages and clear the screen models 538 removeAllViews(); 539 mScreenOrder.clear(); 540 mWorkspaceScreens.clear(); 541 542 // Re-enable the layout transitions 543 enableLayoutTransitions(); 544 } 545 546 public long insertNewWorkspaceScreenBeforeEmptyScreen(long screenId) { 547 // Find the index to insert this view into. If the empty screen exists, then 548 // insert it before that. 549 int insertIndex = mScreenOrder.indexOf(EXTRA_EMPTY_SCREEN_ID); 550 if (insertIndex < 0) { 551 insertIndex = mScreenOrder.size(); 552 } 553 return insertNewWorkspaceScreen(screenId, insertIndex); 554 } 555 556 public long insertNewWorkspaceScreen(long screenId) { 557 return insertNewWorkspaceScreen(screenId, getChildCount()); 558 } 559 560 public long insertNewWorkspaceScreen(long screenId, int insertIndex) { 561 // Log to disk 562 Launcher.addDumpLog(TAG, "11683562 - insertNewWorkspaceScreen(): " + screenId + 563 " at index: " + insertIndex, true); 564 565 if (mWorkspaceScreens.containsKey(screenId)) { 566 throw new RuntimeException("Screen id " + screenId + " already exists!"); 567 } 568 569 CellLayout newScreen = (CellLayout) 570 mLauncher.getLayoutInflater().inflate(R.layout.workspace_screen, null); 571 572 newScreen.setOnLongClickListener(mLongClickListener); 573 newScreen.setOnClickListener(mLauncher); 574 newScreen.setSoundEffectsEnabled(false); 575 mWorkspaceScreens.put(screenId, newScreen); 576 mScreenOrder.add(insertIndex, screenId); 577 addView(newScreen, insertIndex); 578 return screenId; 579 } 580 581 public void createCustomContentContainer() { 582 CellLayout customScreen = (CellLayout) 583 mLauncher.getLayoutInflater().inflate(R.layout.workspace_screen, null); 584 customScreen.disableBackground(); 585 customScreen.disableDragTarget(); 586 587 mWorkspaceScreens.put(CUSTOM_CONTENT_SCREEN_ID, customScreen); 588 mScreenOrder.add(0, CUSTOM_CONTENT_SCREEN_ID); 589 590 // We want no padding on the custom content 591 customScreen.setPadding(0, 0, 0, 0); 592 593 addFullScreenPage(customScreen); 594 595 // Ensure that the current page and default page are maintained. 596 mDefaultPage = mOriginalDefaultPage + 1; 597 598 // Update the custom content hint 599 if (mRestorePage != INVALID_RESTORE_PAGE) { 600 mRestorePage = mRestorePage + 1; 601 } else { 602 setCurrentPage(getCurrentPage() + 1); 603 } 604 } 605 606 public void removeCustomContentPage() { 607 CellLayout customScreen = getScreenWithId(CUSTOM_CONTENT_SCREEN_ID); 608 if (customScreen == null) { 609 throw new RuntimeException("Expected custom content screen to exist"); 610 } 611 612 mWorkspaceScreens.remove(CUSTOM_CONTENT_SCREEN_ID); 613 mScreenOrder.remove(CUSTOM_CONTENT_SCREEN_ID); 614 removeView(customScreen); 615 616 if (mCustomContentCallbacks != null) { 617 mCustomContentCallbacks.onScrollProgressChanged(0); 618 mCustomContentCallbacks.onHide(); 619 } 620 621 mCustomContentCallbacks = null; 622 623 // Ensure that the current page and default page are maintained. 624 mDefaultPage = mOriginalDefaultPage - 1; 625 626 // Update the custom content hint 627 if (mRestorePage != INVALID_RESTORE_PAGE) { 628 mRestorePage = mRestorePage - 1; 629 } else { 630 setCurrentPage(getCurrentPage() - 1); 631 } 632 } 633 634 public void addToCustomContentPage(View customContent, CustomContentCallbacks callbacks, 635 String description) { 636 if (getPageIndexForScreenId(CUSTOM_CONTENT_SCREEN_ID) < 0) { 637 throw new RuntimeException("Expected custom content screen to exist"); 638 } 639 640 // Add the custom content to the full screen custom page 641 CellLayout customScreen = getScreenWithId(CUSTOM_CONTENT_SCREEN_ID); 642 int spanX = customScreen.getCountX(); 643 int spanY = customScreen.getCountY(); 644 CellLayout.LayoutParams lp = new CellLayout.LayoutParams(0, 0, spanX, spanY); 645 lp.canReorder = false; 646 lp.isFullscreen = true; 647 if (customContent instanceof Insettable) { 648 ((Insettable)customContent).setInsets(mInsets); 649 } 650 651 // Verify that the child is removed from any existing parent. 652 if (customContent.getParent() instanceof ViewGroup) { 653 ViewGroup parent = (ViewGroup) customContent.getParent(); 654 parent.removeView(customContent); 655 } 656 customScreen.removeAllViews(); 657 customScreen.addViewToCellLayout(customContent, 0, 0, lp, true); 658 mCustomContentDescription = description; 659 660 mCustomContentCallbacks = callbacks; 661 } 662 663 public void addExtraEmptyScreenOnDrag() { 664 // Log to disk 665 Launcher.addDumpLog(TAG, "11683562 - addExtraEmptyScreenOnDrag()", true); 666 667 boolean lastChildOnScreen = false; 668 boolean childOnFinalScreen = false; 669 670 // Cancel any pending removal of empty screen 671 mRemoveEmptyScreenRunnable = null; 672 673 if (mDragSourceInternal != null) { 674 if (mDragSourceInternal.getChildCount() == 1) { 675 lastChildOnScreen = true; 676 } 677 CellLayout cl = (CellLayout) mDragSourceInternal.getParent(); 678 if (indexOfChild(cl) == getChildCount() - 1) { 679 childOnFinalScreen = true; 680 } 681 } 682 683 // If this is the last item on the final screen 684 if (lastChildOnScreen && childOnFinalScreen) { 685 return; 686 } 687 if (!mWorkspaceScreens.containsKey(EXTRA_EMPTY_SCREEN_ID)) { 688 insertNewWorkspaceScreen(EXTRA_EMPTY_SCREEN_ID); 689 } 690 } 691 692 public boolean addExtraEmptyScreen() { 693 // Log to disk 694 Launcher.addDumpLog(TAG, "11683562 - addExtraEmptyScreen()", true); 695 696 if (!mWorkspaceScreens.containsKey(EXTRA_EMPTY_SCREEN_ID)) { 697 insertNewWorkspaceScreen(EXTRA_EMPTY_SCREEN_ID); 698 return true; 699 } 700 return false; 701 } 702 703 private void convertFinalScreenToEmptyScreenIfNecessary() { 704 // Log to disk 705 Launcher.addDumpLog(TAG, "11683562 - convertFinalScreenToEmptyScreenIfNecessary()", true); 706 707 if (mLauncher.isWorkspaceLoading()) { 708 // Invalid and dangerous operation if workspace is loading 709 Launcher.addDumpLog(TAG, " - workspace loading, skip", true); 710 return; 711 } 712 713 if (hasExtraEmptyScreen() || mScreenOrder.size() == 0) return; 714 long finalScreenId = mScreenOrder.get(mScreenOrder.size() - 1); 715 716 if (finalScreenId == CUSTOM_CONTENT_SCREEN_ID) return; 717 CellLayout finalScreen = mWorkspaceScreens.get(finalScreenId); 718 719 // If the final screen is empty, convert it to the extra empty screen 720 if (finalScreen.getShortcutsAndWidgets().getChildCount() == 0 && 721 !finalScreen.isDropPending()) { 722 mWorkspaceScreens.remove(finalScreenId); 723 mScreenOrder.remove(finalScreenId); 724 725 // if this is the last non-custom content screen, convert it to the empty screen 726 mWorkspaceScreens.put(EXTRA_EMPTY_SCREEN_ID, finalScreen); 727 mScreenOrder.add(EXTRA_EMPTY_SCREEN_ID); 728 729 // Update the model if we have changed any screens 730 mLauncher.getModel().updateWorkspaceScreenOrder(mLauncher, mScreenOrder); 731 Launcher.addDumpLog(TAG, "11683562 - extra empty screen: " + finalScreenId, true); 732 } 733 } 734 735 public void removeExtraEmptyScreen(final boolean animate, boolean stripEmptyScreens) { 736 removeExtraEmptyScreenDelayed(animate, null, 0, stripEmptyScreens); 737 } 738 739 public void removeExtraEmptyScreenDelayed(final boolean animate, final Runnable onComplete, 740 final int delay, final boolean stripEmptyScreens) { 741 // Log to disk 742 Launcher.addDumpLog(TAG, "11683562 - removeExtraEmptyScreen()", true); 743 if (mLauncher.isWorkspaceLoading()) { 744 // Don't strip empty screens if the workspace is still loading 745 Launcher.addDumpLog(TAG, " - workspace loading, skip", true); 746 return; 747 } 748 749 if (delay > 0) { 750 postDelayed(new Runnable() { 751 @Override 752 public void run() { 753 removeExtraEmptyScreenDelayed(animate, onComplete, 0, stripEmptyScreens); 754 } 755 }, delay); 756 return; 757 } 758 759 convertFinalScreenToEmptyScreenIfNecessary(); 760 if (hasExtraEmptyScreen()) { 761 int emptyIndex = mScreenOrder.indexOf(EXTRA_EMPTY_SCREEN_ID); 762 if (getNextPage() == emptyIndex) { 763 snapToPage(getNextPage() - 1, SNAP_OFF_EMPTY_SCREEN_DURATION); 764 fadeAndRemoveEmptyScreen(SNAP_OFF_EMPTY_SCREEN_DURATION, FADE_EMPTY_SCREEN_DURATION, 765 onComplete, stripEmptyScreens); 766 } else { 767 fadeAndRemoveEmptyScreen(0, FADE_EMPTY_SCREEN_DURATION, 768 onComplete, stripEmptyScreens); 769 } 770 return; 771 } else if (stripEmptyScreens) { 772 // If we're not going to strip the empty screens after removing 773 // the extra empty screen, do it right away. 774 stripEmptyScreens(); 775 } 776 777 if (onComplete != null) { 778 onComplete.run(); 779 } 780 } 781 782 private void fadeAndRemoveEmptyScreen(int delay, int duration, final Runnable onComplete, 783 final boolean stripEmptyScreens) { 784 // Log to disk 785 // XXX: Do we need to update LM workspace screens below? 786 Launcher.addDumpLog(TAG, "11683562 - fadeAndRemoveEmptyScreen()", true); 787 PropertyValuesHolder alpha = PropertyValuesHolder.ofFloat("alpha", 0f); 788 PropertyValuesHolder bgAlpha = PropertyValuesHolder.ofFloat("backgroundAlpha", 0f); 789 790 final CellLayout cl = mWorkspaceScreens.get(EXTRA_EMPTY_SCREEN_ID); 791 792 mRemoveEmptyScreenRunnable = new Runnable() { 793 @Override 794 public void run() { 795 if (hasExtraEmptyScreen()) { 796 mWorkspaceScreens.remove(EXTRA_EMPTY_SCREEN_ID); 797 mScreenOrder.remove(EXTRA_EMPTY_SCREEN_ID); 798 removeView(cl); 799 if (stripEmptyScreens) { 800 stripEmptyScreens(); 801 } 802 } 803 } 804 }; 805 806 ObjectAnimator oa = ObjectAnimator.ofPropertyValuesHolder(cl, alpha, bgAlpha); 807 oa.setDuration(duration); 808 oa.setStartDelay(delay); 809 oa.addListener(new AnimatorListenerAdapter() { 810 @Override 811 public void onAnimationEnd(Animator animation) { 812 if (mRemoveEmptyScreenRunnable != null) { 813 mRemoveEmptyScreenRunnable.run(); 814 } 815 if (onComplete != null) { 816 onComplete.run(); 817 } 818 } 819 }); 820 oa.start(); 821 } 822 823 public boolean hasExtraEmptyScreen() { 824 int nScreens = getChildCount(); 825 nScreens = nScreens - numCustomPages(); 826 return mWorkspaceScreens.containsKey(EXTRA_EMPTY_SCREEN_ID) && nScreens > 1; 827 } 828 829 public long commitExtraEmptyScreen() { 830 // Log to disk 831 Launcher.addDumpLog(TAG, "11683562 - commitExtraEmptyScreen()", true); 832 if (mLauncher.isWorkspaceLoading()) { 833 // Invalid and dangerous operation if workspace is loading 834 Launcher.addDumpLog(TAG, " - workspace loading, skip", true); 835 return -1; 836 } 837 838 int index = getPageIndexForScreenId(EXTRA_EMPTY_SCREEN_ID); 839 CellLayout cl = mWorkspaceScreens.get(EXTRA_EMPTY_SCREEN_ID); 840 mWorkspaceScreens.remove(EXTRA_EMPTY_SCREEN_ID); 841 mScreenOrder.remove(EXTRA_EMPTY_SCREEN_ID); 842 843 long newId = LauncherAppState.getLauncherProvider().generateNewScreenId(); 844 mWorkspaceScreens.put(newId, cl); 845 mScreenOrder.add(newId); 846 847 // Update the page indicator marker 848 if (getPageIndicator() != null) { 849 getPageIndicator().updateMarker(index, getPageIndicatorMarker(index)); 850 } 851 852 // Update the model for the new screen 853 mLauncher.getModel().updateWorkspaceScreenOrder(mLauncher, mScreenOrder); 854 855 return newId; 856 } 857 858 public CellLayout getScreenWithId(long screenId) { 859 CellLayout layout = mWorkspaceScreens.get(screenId); 860 return layout; 861 } 862 863 public long getIdForScreen(CellLayout layout) { 864 Iterator<Long> iter = mWorkspaceScreens.keySet().iterator(); 865 while (iter.hasNext()) { 866 long id = iter.next(); 867 if (mWorkspaceScreens.get(id) == layout) { 868 return id; 869 } 870 } 871 return -1; 872 } 873 874 public int getPageIndexForScreenId(long screenId) { 875 return indexOfChild(mWorkspaceScreens.get(screenId)); 876 } 877 878 public long getScreenIdForPageIndex(int index) { 879 if (0 <= index && index < mScreenOrder.size()) { 880 return mScreenOrder.get(index); 881 } 882 return -1; 883 } 884 885 ArrayList<Long> getScreenOrder() { 886 return mScreenOrder; 887 } 888 889 public void stripEmptyScreens() { 890 // Log to disk 891 Launcher.addDumpLog(TAG, "11683562 - stripEmptyScreens()", true); 892 893 if (mLauncher.isWorkspaceLoading()) { 894 // Don't strip empty screens if the workspace is still loading. 895 // This is dangerous and can result in data loss. 896 Launcher.addDumpLog(TAG, " - workspace loading, skip", true); 897 return; 898 } 899 900 if (isPageMoving()) { 901 mStripScreensOnPageStopMoving = true; 902 return; 903 } 904 905 int currentPage = getNextPage(); 906 ArrayList<Long> removeScreens = new ArrayList<Long>(); 907 for (Long id: mWorkspaceScreens.keySet()) { 908 CellLayout cl = mWorkspaceScreens.get(id); 909 if (id >= 0 && cl.getShortcutsAndWidgets().getChildCount() == 0) { 910 removeScreens.add(id); 911 } 912 } 913 914 // We enforce at least one page to add new items to. In the case that we remove the last 915 // such screen, we convert the last screen to the empty screen 916 int minScreens = 1 + numCustomPages(); 917 918 int pageShift = 0; 919 for (Long id: removeScreens) { 920 Launcher.addDumpLog(TAG, "11683562 - removing id: " + id, true); 921 CellLayout cl = mWorkspaceScreens.get(id); 922 mWorkspaceScreens.remove(id); 923 mScreenOrder.remove(id); 924 925 if (getChildCount() > minScreens) { 926 if (indexOfChild(cl) < currentPage) { 927 pageShift++; 928 } 929 removeView(cl); 930 } else { 931 // if this is the last non-custom content screen, convert it to the empty screen 932 mRemoveEmptyScreenRunnable = null; 933 mWorkspaceScreens.put(EXTRA_EMPTY_SCREEN_ID, cl); 934 mScreenOrder.add(EXTRA_EMPTY_SCREEN_ID); 935 } 936 } 937 938 if (!removeScreens.isEmpty()) { 939 // Update the model if we have changed any screens 940 mLauncher.getModel().updateWorkspaceScreenOrder(mLauncher, mScreenOrder); 941 } 942 943 if (pageShift >= 0) { 944 setCurrentPage(currentPage - pageShift); 945 } 946 } 947 948 // See implementation for parameter definition. 949 void addInScreen(View child, long container, long screenId, 950 int x, int y, int spanX, int spanY) { 951 addInScreen(child, container, screenId, x, y, spanX, spanY, false, false); 952 } 953 954 // At bind time, we use the rank (screenId) to compute x and y for hotseat items. 955 // See implementation for parameter definition. 956 void addInScreenFromBind(View child, long container, long screenId, int x, int y, 957 int spanX, int spanY) { 958 addInScreen(child, container, screenId, x, y, spanX, spanY, false, true); 959 } 960 961 // See implementation for parameter definition. 962 void addInScreen(View child, long container, long screenId, int x, int y, int spanX, int spanY, 963 boolean insert) { 964 addInScreen(child, container, screenId, x, y, spanX, spanY, insert, false); 965 } 966 967 /** 968 * Adds the specified child in the specified screen. The position and dimension of 969 * the child are defined by x, y, spanX and spanY. 970 * 971 * @param child The child to add in one of the workspace's screens. 972 * @param screenId The screen in which to add the child. 973 * @param x The X position of the child in the screen's grid. 974 * @param y The Y position of the child in the screen's grid. 975 * @param spanX The number of cells spanned horizontally by the child. 976 * @param spanY The number of cells spanned vertically by the child. 977 * @param insert When true, the child is inserted at the beginning of the children list. 978 * @param computeXYFromRank When true, we use the rank (stored in screenId) to compute 979 * the x and y position in which to place hotseat items. Otherwise 980 * we use the x and y position to compute the rank. 981 */ 982 void addInScreen(View child, long container, long screenId, int x, int y, int spanX, int spanY, 983 boolean insert, boolean computeXYFromRank) { 984 if (container == LauncherSettings.Favorites.CONTAINER_DESKTOP) { 985 if (getScreenWithId(screenId) == null) { 986 Log.e(TAG, "Skipping child, screenId " + screenId + " not found"); 987 // DEBUGGING - Print out the stack trace to see where we are adding from 988 new Throwable().printStackTrace(); 989 return; 990 } 991 } 992 if (screenId == EXTRA_EMPTY_SCREEN_ID) { 993 // This should never happen 994 throw new RuntimeException("Screen id should not be EXTRA_EMPTY_SCREEN_ID"); 995 } 996 997 final CellLayout layout; 998 if (container == LauncherSettings.Favorites.CONTAINER_HOTSEAT) { 999 layout = mLauncher.getHotseat().getLayout(); 1000 child.setOnKeyListener(new HotseatIconKeyEventListener()); 1001 1002 // Hide folder title in the hotseat 1003 if (child instanceof FolderIcon) { 1004 ((FolderIcon) child).setTextVisible(false); 1005 } 1006 1007 if (computeXYFromRank) { 1008 x = mLauncher.getHotseat().getCellXFromOrder((int) screenId); 1009 y = mLauncher.getHotseat().getCellYFromOrder((int) screenId); 1010 } else { 1011 screenId = mLauncher.getHotseat().getOrderInHotseat(x, y); 1012 } 1013 } else { 1014 // Show folder title if not in the hotseat 1015 if (child instanceof FolderIcon) { 1016 ((FolderIcon) child).setTextVisible(true); 1017 } 1018 layout = getScreenWithId(screenId); 1019 child.setOnKeyListener(new IconKeyEventListener()); 1020 } 1021 1022 ViewGroup.LayoutParams genericLp = child.getLayoutParams(); 1023 CellLayout.LayoutParams lp; 1024 if (genericLp == null || !(genericLp instanceof CellLayout.LayoutParams)) { 1025 lp = new CellLayout.LayoutParams(x, y, spanX, spanY); 1026 } else { 1027 lp = (CellLayout.LayoutParams) genericLp; 1028 lp.cellX = x; 1029 lp.cellY = y; 1030 lp.cellHSpan = spanX; 1031 lp.cellVSpan = spanY; 1032 } 1033 1034 if (spanX < 0 && spanY < 0) { 1035 lp.isLockedToGrid = false; 1036 } 1037 1038 // Get the canonical child id to uniquely represent this view in this screen 1039 ItemInfo info = (ItemInfo) child.getTag(); 1040 int childId = mLauncher.getViewIdForItem(info); 1041 1042 boolean markCellsAsOccupied = !(child instanceof Folder); 1043 if (!layout.addViewToCellLayout(child, insert ? 0 : -1, childId, lp, markCellsAsOccupied)) { 1044 // TODO: This branch occurs when the workspace is adding views 1045 // outside of the defined grid 1046 // maybe we should be deleting these items from the LauncherModel? 1047 Launcher.addDumpLog(TAG, "Failed to add to item at (" + lp.cellX + "," + lp.cellY + ") to CellLayout", true); 1048 } 1049 1050 if (!(child instanceof Folder)) { 1051 child.setHapticFeedbackEnabled(false); 1052 child.setOnLongClickListener(mLongClickListener); 1053 } 1054 if (child instanceof DropTarget) { 1055 mDragController.addDropTarget((DropTarget) child); 1056 } 1057 } 1058 1059 /** 1060 * Called directly from a CellLayout (not by the framework), after we've been added as a 1061 * listener via setOnInterceptTouchEventListener(). This allows us to tell the CellLayout 1062 * that it should intercept touch events, which is not something that is normally supported. 1063 */ 1064 @Override 1065 public boolean onTouch(View v, MotionEvent event) { 1066 return (workspaceInModalState() || !isFinishedSwitchingState()) 1067 || (!workspaceInModalState() && indexOfChild(v) != mCurrentPage); 1068 } 1069 1070 public boolean isSwitchingState() { 1071 return mIsSwitchingState; 1072 } 1073 1074 /** This differs from isSwitchingState in that we take into account how far the transition 1075 * has completed. */ 1076 public boolean isFinishedSwitchingState() { 1077 return !mIsSwitchingState || (mTransitionProgress > 0.5f); 1078 } 1079 1080 protected void onWindowVisibilityChanged (int visibility) { 1081 mLauncher.onWindowVisibilityChanged(visibility); 1082 } 1083 1084 @Override 1085 public boolean dispatchUnhandledMove(View focused, int direction) { 1086 if (workspaceInModalState() || !isFinishedSwitchingState()) { 1087 // when the home screens are shrunken, shouldn't allow side-scrolling 1088 return false; 1089 } 1090 return super.dispatchUnhandledMove(focused, direction); 1091 } 1092 1093 @Override 1094 public boolean onInterceptTouchEvent(MotionEvent ev) { 1095 switch (ev.getAction() & MotionEvent.ACTION_MASK) { 1096 case MotionEvent.ACTION_DOWN: 1097 mXDown = ev.getX(); 1098 mYDown = ev.getY(); 1099 mTouchDownTime = System.currentTimeMillis(); 1100 break; 1101 case MotionEvent.ACTION_POINTER_UP: 1102 case MotionEvent.ACTION_UP: 1103 if (mTouchState == TOUCH_STATE_REST) { 1104 final CellLayout currentPage = (CellLayout) getChildAt(mCurrentPage); 1105 if (!currentPage.lastDownOnOccupiedCell()) { 1106 onWallpaperTap(ev); 1107 } 1108 } 1109 } 1110 return super.onInterceptTouchEvent(ev); 1111 } 1112 1113 @Override 1114 public boolean onGenericMotionEvent(MotionEvent event) { 1115 // Ignore pointer scroll events if the custom content doesn't allow scrolling. 1116 if ((getScreenIdForPageIndex(getCurrentPage()) == CUSTOM_CONTENT_SCREEN_ID) 1117 && (mCustomContentCallbacks != null) 1118 && !mCustomContentCallbacks.isScrollingAllowed()) { 1119 return false; 1120 } 1121 return super.onGenericMotionEvent(event); 1122 } 1123 1124 protected void reinflateWidgetsIfNecessary() { 1125 final int clCount = getChildCount(); 1126 for (int i = 0; i < clCount; i++) { 1127 CellLayout cl = (CellLayout) getChildAt(i); 1128 ShortcutAndWidgetContainer swc = cl.getShortcutsAndWidgets(); 1129 final int itemCount = swc.getChildCount(); 1130 for (int j = 0; j < itemCount; j++) { 1131 View v = swc.getChildAt(j); 1132 1133 if (v != null && v.getTag() instanceof LauncherAppWidgetInfo) { 1134 LauncherAppWidgetInfo info = (LauncherAppWidgetInfo) v.getTag(); 1135 LauncherAppWidgetHostView lahv = (LauncherAppWidgetHostView) info.hostView; 1136 if (lahv != null && lahv.isReinflateRequired()) { 1137 mLauncher.removeAppWidget(info); 1138 // Remove the current widget which is inflated with the wrong orientation 1139 cl.removeView(lahv); 1140 mLauncher.bindAppWidget(info); 1141 } 1142 } 1143 } 1144 } 1145 } 1146 1147 @Override 1148 protected void determineScrollingStart(MotionEvent ev) { 1149 if (!isFinishedSwitchingState()) return; 1150 1151 float deltaX = ev.getX() - mXDown; 1152 float absDeltaX = Math.abs(deltaX); 1153 float absDeltaY = Math.abs(ev.getY() - mYDown); 1154 1155 if (Float.compare(absDeltaX, 0f) == 0) return; 1156 1157 float slope = absDeltaY / absDeltaX; 1158 float theta = (float) Math.atan(slope); 1159 1160 if (absDeltaX > mTouchSlop || absDeltaY > mTouchSlop) { 1161 cancelCurrentPageLongPress(); 1162 } 1163 1164 boolean passRightSwipesToCustomContent = 1165 (mTouchDownTime - mCustomContentShowTime) > CUSTOM_CONTENT_GESTURE_DELAY; 1166 1167 boolean swipeInIgnoreDirection = isLayoutRtl() ? deltaX < 0 : deltaX > 0; 1168 boolean onCustomContentScreen = 1169 getScreenIdForPageIndex(getCurrentPage()) == CUSTOM_CONTENT_SCREEN_ID; 1170 if (swipeInIgnoreDirection && onCustomContentScreen && passRightSwipesToCustomContent) { 1171 // Pass swipes to the right to the custom content page. 1172 return; 1173 } 1174 1175 if (onCustomContentScreen && (mCustomContentCallbacks != null) 1176 && !mCustomContentCallbacks.isScrollingAllowed()) { 1177 // Don't allow workspace scrolling if the current custom content screen doesn't allow 1178 // scrolling. 1179 return; 1180 } 1181 1182 if (theta > MAX_SWIPE_ANGLE) { 1183 // Above MAX_SWIPE_ANGLE, we don't want to ever start scrolling the workspace 1184 return; 1185 } else if (theta > START_DAMPING_TOUCH_SLOP_ANGLE) { 1186 // Above START_DAMPING_TOUCH_SLOP_ANGLE and below MAX_SWIPE_ANGLE, we want to 1187 // increase the touch slop to make it harder to begin scrolling the workspace. This 1188 // results in vertically scrolling widgets to more easily. The higher the angle, the 1189 // more we increase touch slop. 1190 theta -= START_DAMPING_TOUCH_SLOP_ANGLE; 1191 float extraRatio = (float) 1192 Math.sqrt((theta / (MAX_SWIPE_ANGLE - START_DAMPING_TOUCH_SLOP_ANGLE))); 1193 super.determineScrollingStart(ev, 1 + TOUCH_SLOP_DAMPING_FACTOR * extraRatio); 1194 } else { 1195 // Below START_DAMPING_TOUCH_SLOP_ANGLE, we don't do anything special 1196 super.determineScrollingStart(ev); 1197 } 1198 } 1199 1200 protected void onPageBeginMoving() { 1201 super.onPageBeginMoving(); 1202 1203 if (isHardwareAccelerated()) { 1204 updateChildrenLayersEnabled(false); 1205 } else { 1206 if (mNextPage != INVALID_PAGE) { 1207 // we're snapping to a particular screen 1208 enableChildrenCache(mCurrentPage, mNextPage); 1209 } else { 1210 // this is when user is actively dragging a particular screen, they might 1211 // swipe it either left or right (but we won't advance by more than one screen) 1212 enableChildrenCache(mCurrentPage - 1, mCurrentPage + 1); 1213 } 1214 } 1215 1216 // If we are not fading in adjacent screens, we still need to restore the alpha in case the 1217 // user scrolls while we are transitioning (should not affect dispatchDraw optimizations) 1218 if (!mWorkspaceFadeInAdjacentScreens) { 1219 for (int i = 0; i < getChildCount(); ++i) { 1220 ((CellLayout) getPageAt(i)).setShortcutAndWidgetAlpha(1f); 1221 } 1222 } 1223 } 1224 1225 protected void onPageEndMoving() { 1226 super.onPageEndMoving(); 1227 1228 if (isHardwareAccelerated()) { 1229 updateChildrenLayersEnabled(false); 1230 } else { 1231 clearChildrenCache(); 1232 } 1233 1234 if (mDragController.isDragging()) { 1235 if (workspaceInModalState()) { 1236 // If we are in springloaded mode, then force an event to check if the current touch 1237 // is under a new page (to scroll to) 1238 mDragController.forceTouchMove(); 1239 } 1240 } 1241 1242 if (mDelayedResizeRunnable != null) { 1243 mDelayedResizeRunnable.run(); 1244 mDelayedResizeRunnable = null; 1245 } 1246 1247 if (mDelayedSnapToPageRunnable != null) { 1248 mDelayedSnapToPageRunnable.run(); 1249 mDelayedSnapToPageRunnable = null; 1250 } 1251 if (mStripScreensOnPageStopMoving) { 1252 stripEmptyScreens(); 1253 mStripScreensOnPageStopMoving = false; 1254 } 1255 } 1256 1257 @Override 1258 protected void notifyPageSwitchListener() { 1259 super.notifyPageSwitchListener(); 1260 Launcher.setScreen(getNextPage()); 1261 1262 if (hasCustomContent() && getNextPage() == 0 && !mCustomContentShowing) { 1263 mCustomContentShowing = true; 1264 if (mCustomContentCallbacks != null) { 1265 mCustomContentCallbacks.onShow(false); 1266 mCustomContentShowTime = System.currentTimeMillis(); 1267 mLauncher.updateVoiceButtonProxyVisible(false); 1268 } 1269 } else if (hasCustomContent() && getNextPage() != 0 && mCustomContentShowing) { 1270 mCustomContentShowing = false; 1271 if (mCustomContentCallbacks != null) { 1272 mCustomContentCallbacks.onHide(); 1273 mLauncher.resetQSBScroll(); 1274 mLauncher.updateVoiceButtonProxyVisible(false); 1275 } 1276 } 1277 } 1278 1279 protected CustomContentCallbacks getCustomContentCallbacks() { 1280 return mCustomContentCallbacks; 1281 } 1282 1283 protected void setWallpaperDimension() { 1284 new AsyncTask<Void, Void, Void>() { 1285 public Void doInBackground(Void ... args) { 1286 String spKey = WallpaperCropActivity.getSharedPreferencesKey(); 1287 SharedPreferences sp = 1288 mLauncher.getSharedPreferences(spKey, Context.MODE_MULTI_PROCESS); 1289 LauncherWallpaperPickerActivity.suggestWallpaperDimension(mLauncher.getResources(), 1290 sp, mLauncher.getWindowManager(), mWallpaperManager, 1291 mLauncher.overrideWallpaperDimensions()); 1292 return null; 1293 } 1294 }.executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR, (Void) null); 1295 } 1296 1297 protected void snapToPage(int whichPage, Runnable r) { 1298 snapToPage(whichPage, SLOW_PAGE_SNAP_ANIMATION_DURATION, r); 1299 } 1300 1301 protected void snapToPage(int whichPage, int duration, Runnable r) { 1302 if (mDelayedSnapToPageRunnable != null) { 1303 mDelayedSnapToPageRunnable.run(); 1304 } 1305 mDelayedSnapToPageRunnable = r; 1306 snapToPage(whichPage, duration); 1307 } 1308 1309 public void snapToScreenId(long screenId) { 1310 snapToScreenId(screenId, null); 1311 } 1312 1313 protected void snapToScreenId(long screenId, Runnable r) { 1314 snapToPage(getPageIndexForScreenId(screenId), r); 1315 } 1316 1317 class WallpaperOffsetInterpolator implements Choreographer.FrameCallback { 1318 float mFinalOffset = 0.0f; 1319 float mCurrentOffset = 0.5f; // to force an initial update 1320 boolean mWaitingForUpdate; 1321 Choreographer mChoreographer; 1322 Interpolator mInterpolator; 1323 boolean mAnimating; 1324 long mAnimationStartTime; 1325 float mAnimationStartOffset; 1326 private final int ANIMATION_DURATION = 250; 1327 // Don't use all the wallpaper for parallax until you have at least this many pages 1328 private final int MIN_PARALLAX_PAGE_SPAN = 3; 1329 int mNumScreens; 1330 1331 public WallpaperOffsetInterpolator() { 1332 mChoreographer = Choreographer.getInstance(); 1333 mInterpolator = new DecelerateInterpolator(1.5f); 1334 } 1335 1336 @Override 1337 public void doFrame(long frameTimeNanos) { 1338 updateOffset(false); 1339 } 1340 1341 private void updateOffset(boolean force) { 1342 if (mWaitingForUpdate || force) { 1343 mWaitingForUpdate = false; 1344 if (computeScrollOffset() && mWindowToken != null) { 1345 try { 1346 mWallpaperManager.setWallpaperOffsets(mWindowToken, 1347 mWallpaperOffset.getCurrX(), 0.5f); 1348 setWallpaperOffsetSteps(); 1349 } catch (IllegalArgumentException e) { 1350 Log.e(TAG, "Error updating wallpaper offset: " + e); 1351 } 1352 } 1353 } 1354 } 1355 1356 public boolean computeScrollOffset() { 1357 final float oldOffset = mCurrentOffset; 1358 if (mAnimating) { 1359 long durationSinceAnimation = System.currentTimeMillis() - mAnimationStartTime; 1360 float t0 = durationSinceAnimation / (float) ANIMATION_DURATION; 1361 float t1 = mInterpolator.getInterpolation(t0); 1362 mCurrentOffset = mAnimationStartOffset + 1363 (mFinalOffset - mAnimationStartOffset) * t1; 1364 mAnimating = durationSinceAnimation < ANIMATION_DURATION; 1365 } else { 1366 mCurrentOffset = mFinalOffset; 1367 } 1368 1369 if (Math.abs(mCurrentOffset - mFinalOffset) > 0.0000001f) { 1370 scheduleUpdate(); 1371 } 1372 if (Math.abs(oldOffset - mCurrentOffset) > 0.0000001f) { 1373 return true; 1374 } 1375 return false; 1376 } 1377 1378 private float wallpaperOffsetForCurrentScroll() { 1379 if (getChildCount() <= 1) { 1380 return 0; 1381 } 1382 1383 // Exclude the leftmost page 1384 int emptyExtraPages = numEmptyScreensToIgnore(); 1385 int firstIndex = numCustomPages(); 1386 // Exclude the last extra empty screen (if we have > MIN_PARALLAX_PAGE_SPAN pages) 1387 int lastIndex = getChildCount() - 1 - emptyExtraPages; 1388 if (isLayoutRtl()) { 1389 int temp = firstIndex; 1390 firstIndex = lastIndex; 1391 lastIndex = temp; 1392 } 1393 1394 int firstPageScrollX = getScrollForPage(firstIndex); 1395 int scrollRange = getScrollForPage(lastIndex) - firstPageScrollX; 1396 if (scrollRange == 0) { 1397 return 0; 1398 } else { 1399 // TODO: do different behavior if it's a live wallpaper? 1400 // Sometimes the left parameter of the pages is animated during a layout transition; 1401 // this parameter offsets it to keep the wallpaper from animating as well 1402 int adjustedScroll = 1403 getScrollX() - firstPageScrollX - getLayoutTransitionOffsetForPage(0); 1404 float offset = Math.min(1, adjustedScroll / (float) scrollRange); 1405 offset = Math.max(0, offset); 1406 // Don't use up all the wallpaper parallax until you have at least 1407 // MIN_PARALLAX_PAGE_SPAN pages 1408 int numScrollingPages = getNumScreensExcludingEmptyAndCustom(); 1409 int parallaxPageSpan; 1410 if (mWallpaperIsLiveWallpaper) { 1411 parallaxPageSpan = numScrollingPages - 1; 1412 } else { 1413 parallaxPageSpan = Math.max(MIN_PARALLAX_PAGE_SPAN, numScrollingPages - 1); 1414 } 1415 mNumPagesForWallpaperParallax = parallaxPageSpan; 1416 1417 // On RTL devices, push the wallpaper offset to the right if we don't have enough 1418 // pages (ie if numScrollingPages < MIN_PARALLAX_PAGE_SPAN) 1419 int padding = isLayoutRtl() ? parallaxPageSpan - numScrollingPages + 1 : 0; 1420 return offset * (padding + numScrollingPages - 1) / parallaxPageSpan; 1421 } 1422 } 1423 1424 private int numEmptyScreensToIgnore() { 1425 int numScrollingPages = getChildCount() - numCustomPages(); 1426 if (numScrollingPages >= MIN_PARALLAX_PAGE_SPAN && hasExtraEmptyScreen()) { 1427 return 1; 1428 } else { 1429 return 0; 1430 } 1431 } 1432 1433 private int getNumScreensExcludingEmptyAndCustom() { 1434 int numScrollingPages = getChildCount() - numEmptyScreensToIgnore() - numCustomPages(); 1435 return numScrollingPages; 1436 } 1437 1438 public void syncWithScroll() { 1439 float offset = wallpaperOffsetForCurrentScroll(); 1440 mWallpaperOffset.setFinalX(offset); 1441 updateOffset(true); 1442 } 1443 1444 public float getCurrX() { 1445 return mCurrentOffset; 1446 } 1447 1448 public float getFinalX() { 1449 return mFinalOffset; 1450 } 1451 1452 private void animateToFinal() { 1453 mAnimating = true; 1454 mAnimationStartOffset = mCurrentOffset; 1455 mAnimationStartTime = System.currentTimeMillis(); 1456 } 1457 1458 private void setWallpaperOffsetSteps() { 1459 // Set wallpaper offset steps (1 / (number of screens - 1)) 1460 float xOffset = 1.0f / mNumPagesForWallpaperParallax; 1461 if (xOffset != mLastSetWallpaperOffsetSteps) { 1462 mWallpaperManager.setWallpaperOffsetSteps(xOffset, 1.0f); 1463 mLastSetWallpaperOffsetSteps = xOffset; 1464 } 1465 } 1466 1467 public void setFinalX(float x) { 1468 scheduleUpdate(); 1469 mFinalOffset = Math.max(0f, Math.min(x, 1.0f)); 1470 if (getNumScreensExcludingEmptyAndCustom() != mNumScreens) { 1471 if (mNumScreens > 0) { 1472 // Don't animate if we're going from 0 screens 1473 animateToFinal(); 1474 } 1475 mNumScreens = getNumScreensExcludingEmptyAndCustom(); 1476 } 1477 } 1478 1479 private void scheduleUpdate() { 1480 if (!mWaitingForUpdate) { 1481 mChoreographer.postFrameCallback(this); 1482 mWaitingForUpdate = true; 1483 } 1484 } 1485 1486 public void jumpToFinal() { 1487 mCurrentOffset = mFinalOffset; 1488 } 1489 } 1490 1491 @Override 1492 public void computeScroll() { 1493 super.computeScroll(); 1494 mWallpaperOffset.syncWithScroll(); 1495 } 1496 1497 @Override 1498 public void announceForAccessibility(CharSequence text) { 1499 // Don't announce if apps is on top of us. 1500 if (!mLauncher.isAllAppsVisible()) { 1501 super.announceForAccessibility(text); 1502 } 1503 } 1504 1505 void showOutlines() { 1506 if (!workspaceInModalState() && !mIsSwitchingState) { 1507 if (mChildrenOutlineFadeOutAnimation != null) mChildrenOutlineFadeOutAnimation.cancel(); 1508 if (mChildrenOutlineFadeInAnimation != null) mChildrenOutlineFadeInAnimation.cancel(); 1509 mChildrenOutlineFadeInAnimation = LauncherAnimUtils.ofFloat(this, "childrenOutlineAlpha", 1.0f); 1510 mChildrenOutlineFadeInAnimation.setDuration(CHILDREN_OUTLINE_FADE_IN_DURATION); 1511 mChildrenOutlineFadeInAnimation.start(); 1512 } 1513 } 1514 1515 void hideOutlines() { 1516 if (!workspaceInModalState() && !mIsSwitchingState) { 1517 if (mChildrenOutlineFadeInAnimation != null) mChildrenOutlineFadeInAnimation.cancel(); 1518 if (mChildrenOutlineFadeOutAnimation != null) mChildrenOutlineFadeOutAnimation.cancel(); 1519 mChildrenOutlineFadeOutAnimation = LauncherAnimUtils.ofFloat(this, "childrenOutlineAlpha", 0.0f); 1520 mChildrenOutlineFadeOutAnimation.setDuration(CHILDREN_OUTLINE_FADE_OUT_DURATION); 1521 mChildrenOutlineFadeOutAnimation.setStartDelay(CHILDREN_OUTLINE_FADE_OUT_DELAY); 1522 mChildrenOutlineFadeOutAnimation.start(); 1523 } 1524 } 1525 1526 public void showOutlinesTemporarily() { 1527 if (!mIsPageMoving && !isTouchActive()) { 1528 snapToPage(mCurrentPage); 1529 } 1530 } 1531 1532 public void setChildrenOutlineAlpha(float alpha) { 1533 mChildrenOutlineAlpha = alpha; 1534 for (int i = 0; i < getChildCount(); i++) { 1535 CellLayout cl = (CellLayout) getChildAt(i); 1536 cl.setBackgroundAlpha(alpha); 1537 } 1538 } 1539 1540 public float getChildrenOutlineAlpha() { 1541 return mChildrenOutlineAlpha; 1542 } 1543 1544 private void animateBackgroundGradient(float finalAlpha, boolean animated) { 1545 final DragLayer dragLayer = mLauncher.getDragLayer(); 1546 1547 if (mBackgroundFadeInAnimation != null) { 1548 mBackgroundFadeInAnimation.cancel(); 1549 mBackgroundFadeInAnimation = null; 1550 } 1551 if (mBackgroundFadeOutAnimation != null) { 1552 mBackgroundFadeOutAnimation.cancel(); 1553 mBackgroundFadeOutAnimation = null; 1554 } 1555 float startAlpha = dragLayer.getBackgroundAlpha(); 1556 if (finalAlpha != startAlpha) { 1557 if (animated) { 1558 mBackgroundFadeOutAnimation = 1559 LauncherAnimUtils.ofFloat(this, startAlpha, finalAlpha); 1560 mBackgroundFadeOutAnimation.addUpdateListener(new AnimatorUpdateListener() { 1561 public void onAnimationUpdate(ValueAnimator animation) { 1562 dragLayer.setBackgroundAlpha( 1563 ((Float)animation.getAnimatedValue()).floatValue()); 1564 } 1565 }); 1566 mBackgroundFadeOutAnimation.setInterpolator(new DecelerateInterpolator(1.5f)); 1567 mBackgroundFadeOutAnimation.setDuration(BACKGROUND_FADE_OUT_DURATION); 1568 mBackgroundFadeOutAnimation.start(); 1569 } else { 1570 dragLayer.setBackgroundAlpha(finalAlpha); 1571 } 1572 } 1573 } 1574 1575 float backgroundAlphaInterpolator(float r) { 1576 float pivotA = 0.1f; 1577 float pivotB = 0.4f; 1578 if (r < pivotA) { 1579 return 0; 1580 } else if (r > pivotB) { 1581 return 1.0f; 1582 } else { 1583 return (r - pivotA)/(pivotB - pivotA); 1584 } 1585 } 1586 1587 private void updatePageAlphaValues(int screenCenter) { 1588 boolean isInOverscroll = mOverScrollX < 0 || mOverScrollX > mMaxScrollX; 1589 if (mWorkspaceFadeInAdjacentScreens && 1590 !workspaceInModalState() && 1591 !mIsSwitchingState && 1592 !isInOverscroll) { 1593 for (int i = numCustomPages(); i < getChildCount(); i++) { 1594 CellLayout child = (CellLayout) getChildAt(i); 1595 if (child != null) { 1596 float scrollProgress = getScrollProgress(screenCenter, child, i); 1597 float alpha = 1 - Math.abs(scrollProgress); 1598 child.getShortcutsAndWidgets().setAlpha(alpha); 1599 //child.setBackgroundAlphaMultiplier(1 - alpha); 1600 } 1601 } 1602 } 1603 } 1604 1605 private void setChildrenBackgroundAlphaMultipliers(float a) { 1606 for (int i = 0; i < getChildCount(); i++) { 1607 CellLayout child = (CellLayout) getChildAt(i); 1608 child.setBackgroundAlphaMultiplier(a); 1609 } 1610 } 1611 1612 public boolean hasCustomContent() { 1613 return (mScreenOrder.size() > 0 && mScreenOrder.get(0) == CUSTOM_CONTENT_SCREEN_ID); 1614 } 1615 1616 public int numCustomPages() { 1617 return hasCustomContent() ? 1 : 0; 1618 } 1619 1620 public boolean isOnOrMovingToCustomContent() { 1621 return hasCustomContent() && getNextPage() == 0; 1622 } 1623 1624 private void updateStateForCustomContent(int screenCenter) { 1625 float translationX = 0; 1626 float progress = 0; 1627 if (hasCustomContent()) { 1628 int index = mScreenOrder.indexOf(CUSTOM_CONTENT_SCREEN_ID); 1629 1630 int scrollDelta = getScrollX() - getScrollForPage(index) - 1631 getLayoutTransitionOffsetForPage(index); 1632 float scrollRange = getScrollForPage(index + 1) - getScrollForPage(index); 1633 translationX = scrollRange - scrollDelta; 1634 progress = (scrollRange - scrollDelta) / scrollRange; 1635 1636 if (isLayoutRtl()) { 1637 translationX = Math.min(0, translationX); 1638 } else { 1639 translationX = Math.max(0, translationX); 1640 } 1641 progress = Math.max(0, progress); 1642 } 1643 1644 if (Float.compare(progress, mLastCustomContentScrollProgress) == 0) return; 1645 1646 CellLayout cc = mWorkspaceScreens.get(CUSTOM_CONTENT_SCREEN_ID); 1647 if (progress > 0 && cc.getVisibility() != VISIBLE && !workspaceInModalState()) { 1648 cc.setVisibility(VISIBLE); 1649 } 1650 1651 mLastCustomContentScrollProgress = progress; 1652 1653 mLauncher.getDragLayer().setBackgroundAlpha(progress * 0.8f); 1654 1655 if (mLauncher.getHotseat() != null) { 1656 mLauncher.getHotseat().setTranslationX(translationX); 1657 } 1658 1659 if (getPageIndicator() != null) { 1660 getPageIndicator().setTranslationX(translationX); 1661 } 1662 1663 if (mCustomContentCallbacks != null) { 1664 mCustomContentCallbacks.onScrollProgressChanged(progress); 1665 } 1666 } 1667 1668 @Override 1669 protected OnClickListener getPageIndicatorClickListener() { 1670 AccessibilityManager am = (AccessibilityManager) 1671 getContext().getSystemService(Context.ACCESSIBILITY_SERVICE); 1672 if (!am.isTouchExplorationEnabled()) { 1673 return null; 1674 } 1675 OnClickListener listener = new OnClickListener() { 1676 @Override 1677 public void onClick(View arg0) { 1678 enterOverviewMode(); 1679 } 1680 }; 1681 return listener; 1682 } 1683 1684 @Override 1685 protected void screenScrolled(int screenCenter) { 1686 final boolean isRtl = isLayoutRtl(); 1687 super.screenScrolled(screenCenter); 1688 1689 updatePageAlphaValues(screenCenter); 1690 updateStateForCustomContent(screenCenter); 1691 enableHwLayersOnVisiblePages(); 1692 1693 boolean shouldOverScroll = mOverScrollX < 0 || mOverScrollX > mMaxScrollX; 1694 1695 if (shouldOverScroll) { 1696 int index = 0; 1697 final int lowerIndex = 0; 1698 final int upperIndex = getChildCount() - 1; 1699 1700 final boolean isLeftPage = mOverScrollX < 0; 1701 index = (!isRtl && isLeftPage) || (isRtl && !isLeftPage) ? lowerIndex : upperIndex; 1702 1703 CellLayout cl = (CellLayout) getChildAt(index); 1704 float effect = Math.abs(mOverScrollEffect); 1705 cl.setOverScrollAmount(Math.abs(effect), isLeftPage); 1706 1707 mOverscrollEffectSet = true; 1708 } else { 1709 if (mOverscrollEffectSet && getChildCount() > 0) { 1710 mOverscrollEffectSet = false; 1711 ((CellLayout) getChildAt(0)).setOverScrollAmount(0, false); 1712 ((CellLayout) getChildAt(getChildCount() - 1)).setOverScrollAmount(0, false); 1713 } 1714 } 1715 } 1716 1717 @Override 1718 protected void overScroll(float amount) { 1719 boolean shouldOverScroll = (amount < 0 && (!hasCustomContent() || isLayoutRtl())) || 1720 (amount > 0 && (!hasCustomContent() || !isLayoutRtl())); 1721 if (shouldOverScroll) { 1722 dampedOverScroll(amount); 1723 mOverScrollEffect = acceleratedOverFactor(amount); 1724 } else { 1725 mOverScrollEffect = 0; 1726 } 1727 } 1728 1729 protected void onAttachedToWindow() { 1730 super.onAttachedToWindow(); 1731 mWindowToken = getWindowToken(); 1732 computeScroll(); 1733 mDragController.setWindowToken(mWindowToken); 1734 } 1735 1736 protected void onDetachedFromWindow() { 1737 super.onDetachedFromWindow(); 1738 mWindowToken = null; 1739 } 1740 1741 protected void onResume() { 1742 if (getPageIndicator() != null) { 1743 // In case accessibility state has changed, we need to perform this on every 1744 // attach to window 1745 OnClickListener listener = getPageIndicatorClickListener(); 1746 if (listener != null) { 1747 getPageIndicator().setOnClickListener(listener); 1748 } 1749 } 1750 AccessibilityManager am = (AccessibilityManager) 1751 getContext().getSystemService(Context.ACCESSIBILITY_SERVICE); 1752 sAccessibilityEnabled = am.isEnabled(); 1753 1754 // Update wallpaper dimensions if they were changed since last onResume 1755 // (we also always set the wallpaper dimensions in the constructor) 1756 if (LauncherAppState.getInstance().hasWallpaperChangedSinceLastCheck()) { 1757 setWallpaperDimension(); 1758 } 1759 mWallpaperIsLiveWallpaper = mWallpaperManager.getWallpaperInfo() != null; 1760 // Force the wallpaper offset steps to be set again, because another app might have changed 1761 // them 1762 mLastSetWallpaperOffsetSteps = 0f; 1763 } 1764 1765 @Override 1766 protected void onLayout(boolean changed, int left, int top, int right, int bottom) { 1767 if (mFirstLayout && mCurrentPage >= 0 && mCurrentPage < getChildCount()) { 1768 mWallpaperOffset.syncWithScroll(); 1769 mWallpaperOffset.jumpToFinal(); 1770 } 1771 super.onLayout(changed, left, top, right, bottom); 1772 } 1773 1774 @Override 1775 protected void onDraw(Canvas canvas) { 1776 super.onDraw(canvas); 1777 1778 // Call back to LauncherModel to finish binding after the first draw 1779 post(mBindPages); 1780 } 1781 1782 @Override 1783 protected boolean onRequestFocusInDescendants(int direction, Rect previouslyFocusedRect) { 1784 if (!mLauncher.isAllAppsVisible()) { 1785 final Folder openFolder = getOpenFolder(); 1786 if (openFolder != null) { 1787 return openFolder.requestFocus(direction, previouslyFocusedRect); 1788 } else { 1789 return super.onRequestFocusInDescendants(direction, previouslyFocusedRect); 1790 } 1791 } 1792 return false; 1793 } 1794 1795 @Override 1796 public int getDescendantFocusability() { 1797 if (workspaceInModalState()) { 1798 return ViewGroup.FOCUS_BLOCK_DESCENDANTS; 1799 } 1800 return super.getDescendantFocusability(); 1801 } 1802 1803 @Override 1804 public void addFocusables(ArrayList<View> views, int direction, int focusableMode) { 1805 if (!mLauncher.isAllAppsVisible()) { 1806 final Folder openFolder = getOpenFolder(); 1807 if (openFolder != null) { 1808 openFolder.addFocusables(views, direction); 1809 } else { 1810 super.addFocusables(views, direction, focusableMode); 1811 } 1812 } 1813 } 1814 1815 public boolean workspaceInModalState() { 1816 return mState != State.NORMAL; 1817 } 1818 1819 void enableChildrenCache(int fromPage, int toPage) { 1820 if (fromPage > toPage) { 1821 final int temp = fromPage; 1822 fromPage = toPage; 1823 toPage = temp; 1824 } 1825 1826 final int screenCount = getChildCount(); 1827 1828 fromPage = Math.max(fromPage, 0); 1829 toPage = Math.min(toPage, screenCount - 1); 1830 1831 for (int i = fromPage; i <= toPage; i++) { 1832 final CellLayout layout = (CellLayout) getChildAt(i); 1833 layout.setChildrenDrawnWithCacheEnabled(true); 1834 layout.setChildrenDrawingCacheEnabled(true); 1835 } 1836 } 1837 1838 void clearChildrenCache() { 1839 final int screenCount = getChildCount(); 1840 for (int i = 0; i < screenCount; i++) { 1841 final CellLayout layout = (CellLayout) getChildAt(i); 1842 layout.setChildrenDrawnWithCacheEnabled(false); 1843 // In software mode, we don't want the items to continue to be drawn into bitmaps 1844 if (!isHardwareAccelerated()) { 1845 layout.setChildrenDrawingCacheEnabled(false); 1846 } 1847 } 1848 } 1849 1850 private void updateChildrenLayersEnabled(boolean force) { 1851 boolean small = mState == State.OVERVIEW || mIsSwitchingState; 1852 boolean enableChildrenLayers = force || small || mAnimatingViewIntoPlace || isPageMoving(); 1853 1854 if (enableChildrenLayers != mChildrenLayersEnabled) { 1855 mChildrenLayersEnabled = enableChildrenLayers; 1856 if (mChildrenLayersEnabled) { 1857 enableHwLayersOnVisiblePages(); 1858 } else { 1859 for (int i = 0; i < getPageCount(); i++) { 1860 final CellLayout cl = (CellLayout) getChildAt(i); 1861 cl.enableHardwareLayer(false); 1862 } 1863 } 1864 } 1865 } 1866 1867 private void enableHwLayersOnVisiblePages() { 1868 if (mChildrenLayersEnabled) { 1869 final int screenCount = getChildCount(); 1870 getVisiblePages(mTempVisiblePagesRange); 1871 int leftScreen = mTempVisiblePagesRange[0]; 1872 int rightScreen = mTempVisiblePagesRange[1]; 1873 if (leftScreen == rightScreen) { 1874 // make sure we're caching at least two pages always 1875 if (rightScreen < screenCount - 1) { 1876 rightScreen++; 1877 } else if (leftScreen > 0) { 1878 leftScreen--; 1879 } 1880 } 1881 1882 final CellLayout customScreen = mWorkspaceScreens.get(CUSTOM_CONTENT_SCREEN_ID); 1883 for (int i = 0; i < screenCount; i++) { 1884 final CellLayout layout = (CellLayout) getPageAt(i); 1885 1886 // enable layers between left and right screen inclusive, except for the 1887 // customScreen, which may animate its content during transitions. 1888 boolean enableLayer = layout != customScreen && 1889 leftScreen <= i && i <= rightScreen && shouldDrawChild(layout); 1890 layout.enableHardwareLayer(enableLayer); 1891 } 1892 } 1893 } 1894 1895 public void buildPageHardwareLayers() { 1896 // force layers to be enabled just for the call to buildLayer 1897 updateChildrenLayersEnabled(true); 1898 if (getWindowToken() != null) { 1899 final int childCount = getChildCount(); 1900 for (int i = 0; i < childCount; i++) { 1901 CellLayout cl = (CellLayout) getChildAt(i); 1902 cl.buildHardwareLayer(); 1903 } 1904 } 1905 updateChildrenLayersEnabled(false); 1906 } 1907 1908 protected void onWallpaperTap(MotionEvent ev) { 1909 final int[] position = mTempCell; 1910 getLocationOnScreen(position); 1911 1912 int pointerIndex = ev.getActionIndex(); 1913 position[0] += (int) ev.getX(pointerIndex); 1914 position[1] += (int) ev.getY(pointerIndex); 1915 1916 mWallpaperManager.sendWallpaperCommand(getWindowToken(), 1917 ev.getAction() == MotionEvent.ACTION_UP 1918 ? WallpaperManager.COMMAND_TAP : WallpaperManager.COMMAND_SECONDARY_TAP, 1919 position[0], position[1], 0, null); 1920 } 1921 1922 /* 1923 * This interpolator emulates the rate at which the perceived scale of an object changes 1924 * as its distance from a camera increases. When this interpolator is applied to a scale 1925 * animation on a view, it evokes the sense that the object is shrinking due to moving away 1926 * from the camera. 1927 */ 1928 static class ZInterpolator implements TimeInterpolator { 1929 private float focalLength; 1930 1931 public ZInterpolator(float foc) { 1932 focalLength = foc; 1933 } 1934 1935 public float getInterpolation(float input) { 1936 return (1.0f - focalLength / (focalLength + input)) / 1937 (1.0f - focalLength / (focalLength + 1.0f)); 1938 } 1939 } 1940 1941 /* 1942 * The exact reverse of ZInterpolator. 1943 */ 1944 static class InverseZInterpolator implements TimeInterpolator { 1945 private ZInterpolator zInterpolator; 1946 public InverseZInterpolator(float foc) { 1947 zInterpolator = new ZInterpolator(foc); 1948 } 1949 public float getInterpolation(float input) { 1950 return 1 - zInterpolator.getInterpolation(1 - input); 1951 } 1952 } 1953 1954 /* 1955 * ZInterpolator compounded with an ease-out. 1956 */ 1957 static class ZoomOutInterpolator implements TimeInterpolator { 1958 private final DecelerateInterpolator decelerate = new DecelerateInterpolator(0.75f); 1959 private final ZInterpolator zInterpolator = new ZInterpolator(0.13f); 1960 1961 public float getInterpolation(float input) { 1962 return decelerate.getInterpolation(zInterpolator.getInterpolation(input)); 1963 } 1964 } 1965 1966 /* 1967 * InvereZInterpolator compounded with an ease-out. 1968 */ 1969 static class ZoomInInterpolator implements TimeInterpolator { 1970 private final InverseZInterpolator inverseZInterpolator = new InverseZInterpolator(0.35f); 1971 private final DecelerateInterpolator decelerate = new DecelerateInterpolator(3.0f); 1972 1973 public float getInterpolation(float input) { 1974 return decelerate.getInterpolation(inverseZInterpolator.getInterpolation(input)); 1975 } 1976 } 1977 1978 private final ZoomInInterpolator mZoomInInterpolator = new ZoomInInterpolator(); 1979 1980 /* 1981 * 1982 * We call these methods (onDragStartedWithItemSpans/onDragStartedWithSize) whenever we 1983 * start a drag in Launcher, regardless of whether the drag has ever entered the Workspace 1984 * 1985 * These methods mark the appropriate pages as accepting drops (which alters their visual 1986 * appearance). 1987 * 1988 */ 1989 private static Rect getDrawableBounds(Drawable d) { 1990 Rect bounds = new Rect(); 1991 d.copyBounds(bounds); 1992 if (bounds.width() == 0 || bounds.height() == 0) { 1993 bounds.set(0, 0, d.getIntrinsicWidth(), d.getIntrinsicHeight()); 1994 } else { 1995 bounds.offsetTo(0, 0); 1996 } 1997 if (d instanceof PreloadIconDrawable) { 1998 int inset = -((PreloadIconDrawable) d).getOutset(); 1999 bounds.inset(inset, inset); 2000 } 2001 return bounds; 2002 } 2003 2004 public void onExternalDragStartedWithItem(View v) { 2005 // Compose a drag bitmap with the view scaled to the icon size 2006 LauncherAppState app = LauncherAppState.getInstance(); 2007 DeviceProfile grid = app.getDynamicGrid().getDeviceProfile(); 2008 int iconSize = grid.iconSizePx; 2009 int bmpWidth = v.getMeasuredWidth(); 2010 int bmpHeight = v.getMeasuredHeight(); 2011 2012 // If this is a text view, use its drawable instead 2013 if (v instanceof TextView) { 2014 TextView tv = (TextView) v; 2015 Drawable d = tv.getCompoundDrawables()[1]; 2016 Rect bounds = getDrawableBounds(d); 2017 bmpWidth = bounds.width(); 2018 bmpHeight = bounds.height(); 2019 } 2020 2021 // Compose the bitmap to create the icon from 2022 Bitmap b = Bitmap.createBitmap(bmpWidth, bmpHeight, 2023 Bitmap.Config.ARGB_8888); 2024 mCanvas.setBitmap(b); 2025 drawDragView(v, mCanvas, 0); 2026 mCanvas.setBitmap(null); 2027 2028 // The outline is used to visualize where the item will land if dropped 2029 mDragOutline = createDragOutline(b, DRAG_BITMAP_PADDING, iconSize, iconSize, true); 2030 } 2031 2032 public void onDragStartedWithItem(PendingAddItemInfo info, Bitmap b, boolean clipAlpha) { 2033 int[] size = estimateItemSize(info.spanX, info.spanY, info, false); 2034 2035 // The outline is used to visualize where the item will land if dropped 2036 mDragOutline = createDragOutline(b, DRAG_BITMAP_PADDING, size[0], size[1], clipAlpha); 2037 } 2038 2039 public void exitWidgetResizeMode() { 2040 DragLayer dragLayer = mLauncher.getDragLayer(); 2041 dragLayer.clearAllResizeFrames(); 2042 } 2043 2044 private void initAnimationArrays() { 2045 final int childCount = getChildCount(); 2046 if (mLastChildCount == childCount) return; 2047 2048 mOldBackgroundAlphas = new float[childCount]; 2049 mOldAlphas = new float[childCount]; 2050 mNewBackgroundAlphas = new float[childCount]; 2051 mNewAlphas = new float[childCount]; 2052 } 2053 2054 Animator getChangeStateAnimation(final State state, boolean animated) { 2055 return getChangeStateAnimation(state, animated, 0, -1); 2056 } 2057 2058 @Override 2059 protected void getFreeScrollPageRange(int[] range) { 2060 getOverviewModePages(range); 2061 } 2062 2063 private void getOverviewModePages(int[] range) { 2064 int start = numCustomPages(); 2065 int end = getChildCount() - 1; 2066 2067 range[0] = Math.max(0, Math.min(start, getChildCount() - 1)); 2068 range[1] = Math.max(0, end); 2069 } 2070 2071 protected void onStartReordering() { 2072 super.onStartReordering(); 2073 showOutlines(); 2074 // Reordering handles its own animations, disable the automatic ones. 2075 disableLayoutTransitions(); 2076 } 2077 2078 protected void onEndReordering() { 2079 super.onEndReordering(); 2080 2081 if (mLauncher.isWorkspaceLoading()) { 2082 // Invalid and dangerous operation if workspace is loading 2083 return; 2084 } 2085 2086 hideOutlines(); 2087 mScreenOrder.clear(); 2088 int count = getChildCount(); 2089 for (int i = 0; i < count; i++) { 2090 CellLayout cl = ((CellLayout) getChildAt(i)); 2091 mScreenOrder.add(getIdForScreen(cl)); 2092 } 2093 2094 mLauncher.getModel().updateWorkspaceScreenOrder(mLauncher, mScreenOrder); 2095 2096 // Re-enable auto layout transitions for page deletion. 2097 enableLayoutTransitions(); 2098 } 2099 2100 public boolean isInOverviewMode() { 2101 return mState == State.OVERVIEW; 2102 } 2103 2104 public boolean enterOverviewMode() { 2105 if (mTouchState != TOUCH_STATE_REST) { 2106 return false; 2107 } 2108 enableOverviewMode(true, -1, true); 2109 return true; 2110 } 2111 2112 public void exitOverviewMode(boolean animated) { 2113 exitOverviewMode(-1, animated); 2114 } 2115 2116 public void exitOverviewMode(int snapPage, boolean animated) { 2117 enableOverviewMode(false, snapPage, animated); 2118 } 2119 2120 private void enableOverviewMode(boolean enable, int snapPage, boolean animated) { 2121 State finalState = Workspace.State.OVERVIEW; 2122 if (!enable) { 2123 finalState = Workspace.State.NORMAL; 2124 } 2125 2126 Animator workspaceAnim = getChangeStateAnimation(finalState, animated, 0, snapPage); 2127 if (workspaceAnim != null) { 2128 onTransitionPrepare(); 2129 workspaceAnim.addListener(new AnimatorListenerAdapter() { 2130 @Override 2131 public void onAnimationEnd(Animator arg0) { 2132 onTransitionEnd(); 2133 } 2134 }); 2135 workspaceAnim.start(); 2136 } 2137 } 2138 2139 int getOverviewModeTranslationY() { 2140 LauncherAppState app = LauncherAppState.getInstance(); 2141 DeviceProfile grid = app.getDynamicGrid().getDeviceProfile(); 2142 Rect overviewBar = grid.getOverviewModeButtonBarRect(); 2143 2144 int availableHeight = getViewportHeight(); 2145 int scaledHeight = (int) (mOverviewModeShrinkFactor * getNormalChildHeight()); 2146 int offsetFromTopEdge = (availableHeight - scaledHeight) / 2; 2147 int offsetToCenterInOverview = (availableHeight - mInsets.top - overviewBar.height() 2148 - scaledHeight) / 2; 2149 2150 return -offsetFromTopEdge + mInsets.top + offsetToCenterInOverview; 2151 } 2152 2153 boolean shouldVoiceButtonProxyBeVisible() { 2154 if (isOnOrMovingToCustomContent()) { 2155 return false; 2156 } 2157 if (mState != State.NORMAL) { 2158 return false; 2159 } 2160 return true; 2161 } 2162 2163 public void updateInteractionForState() { 2164 if (mState != State.NORMAL) { 2165 mLauncher.onInteractionBegin(); 2166 } else { 2167 mLauncher.onInteractionEnd(); 2168 } 2169 } 2170 2171 private void setState(State state) { 2172 mState = state; 2173 updateInteractionForState(); 2174 updateAccessibilityFlags(); 2175 } 2176 2177 State getState() { 2178 return mState; 2179 } 2180 2181 private void updateAccessibilityFlags() { 2182 int accessible = mState == State.NORMAL ? 2183 ViewCompat.IMPORTANT_FOR_ACCESSIBILITY_YES : 2184 ViewCompat.IMPORTANT_FOR_ACCESSIBILITY_NO_HIDE_DESCENDANTS; 2185 setImportantForAccessibility(accessible); 2186 } 2187 2188 private static final int HIDE_WORKSPACE_DURATION = 100; 2189 2190 Animator getChangeStateAnimation(final State state, boolean animated, int delay, int snapPage) { 2191 if (mState == state) { 2192 return null; 2193 } 2194 2195 // Initialize animation arrays for the first time if necessary 2196 initAnimationArrays(); 2197 2198 AnimatorSet anim = animated ? LauncherAnimUtils.createAnimatorSet() : null; 2199 2200 final State oldState = mState; 2201 final boolean oldStateIsNormal = (oldState == State.NORMAL); 2202 final boolean oldStateIsSpringLoaded = (oldState == State.SPRING_LOADED); 2203 final boolean oldStateIsNormalHidden = (oldState == State.NORMAL_HIDDEN); 2204 final boolean oldStateIsOverviewHidden = (oldState == State.OVERVIEW_HIDDEN); 2205 final boolean oldStateIsOverview = (oldState == State.OVERVIEW); 2206 setState(state); 2207 final boolean stateIsNormal = (state == State.NORMAL); 2208 final boolean stateIsSpringLoaded = (state == State.SPRING_LOADED); 2209 final boolean stateIsNormalHidden = (state == State.NORMAL_HIDDEN); 2210 final boolean stateIsOverviewHidden = (state == State.OVERVIEW_HIDDEN); 2211 final boolean stateIsOverview = (state == State.OVERVIEW); 2212 float finalBackgroundAlpha = (stateIsSpringLoaded || stateIsOverview) ? 1.0f : 0f; 2213 float finalHotseatAndPageIndicatorAlpha = (stateIsNormal || stateIsSpringLoaded) ? 1f : 0f; 2214 float finalOverviewPanelAlpha = stateIsOverview ? 1f : 0f; 2215 float finalSearchBarAlpha = !stateIsNormal ? 0f : 1f; 2216 float finalWorkspaceTranslationY = stateIsOverview || stateIsOverviewHidden ? 2217 getOverviewModeTranslationY() : 0; 2218 2219 boolean workspaceToAllApps = (oldStateIsNormal && stateIsNormalHidden); 2220 boolean overviewToAllApps = (oldStateIsOverview && stateIsOverviewHidden); 2221 boolean allAppsToWorkspace = (stateIsNormalHidden && stateIsNormal); 2222 boolean workspaceToOverview = (oldStateIsNormal && stateIsOverview); 2223 boolean overviewToWorkspace = (oldStateIsOverview && stateIsNormal); 2224 2225 mNewScale = 1.0f; 2226 2227 if (oldStateIsOverview) { 2228 disableFreeScroll(); 2229 } else if (stateIsOverview) { 2230 enableFreeScroll(); 2231 } 2232 2233 if (state != State.NORMAL) { 2234 if (stateIsSpringLoaded) { 2235 mNewScale = mSpringLoadedShrinkFactor; 2236 } else if (stateIsOverview || stateIsOverviewHidden) { 2237 mNewScale = mOverviewModeShrinkFactor; 2238 } 2239 } 2240 2241 final int duration; 2242 if (workspaceToAllApps || overviewToAllApps) { 2243 duration = HIDE_WORKSPACE_DURATION; //getResources().getInteger(R.integer.config_workspaceUnshrinkTime); 2244 } else if (workspaceToOverview || overviewToWorkspace) { 2245 duration = getResources().getInteger(R.integer.config_overviewTransitionTime); 2246 } else { 2247 duration = getResources().getInteger(R.integer.config_appsCustomizeWorkspaceShrinkTime); 2248 } 2249 2250 if (snapPage == -1) { 2251 snapPage = getPageNearestToCenterOfScreen(); 2252 } 2253 snapToPage(snapPage, duration, mZoomInInterpolator); 2254 2255 for (int i = 0; i < getChildCount(); i++) { 2256 final CellLayout cl = (CellLayout) getChildAt(i); 2257 boolean isCurrentPage = (i == snapPage); 2258 float initialAlpha = cl.getShortcutsAndWidgets().getAlpha(); 2259 float finalAlpha; 2260 if (stateIsNormalHidden || stateIsOverviewHidden) { 2261 finalAlpha = 0f; 2262 } else if (stateIsNormal && mWorkspaceFadeInAdjacentScreens) { 2263 finalAlpha = (i == snapPage || i < numCustomPages()) ? 1f : 0f; 2264 } else { 2265 finalAlpha = 1f; 2266 } 2267 2268 // If we are animating to/from the small state, then hide the side pages and fade the 2269 // current page in 2270 if (!mIsSwitchingState) { 2271 if (workspaceToAllApps || allAppsToWorkspace) { 2272 if (allAppsToWorkspace && isCurrentPage) { 2273 initialAlpha = 0f; 2274 } else if (!isCurrentPage) { 2275 initialAlpha = finalAlpha = 0f; 2276 } 2277 cl.setShortcutAndWidgetAlpha(initialAlpha); 2278 } 2279 } 2280 2281 mOldAlphas[i] = initialAlpha; 2282 mNewAlphas[i] = finalAlpha; 2283 if (animated) { 2284 mOldBackgroundAlphas[i] = cl.getBackgroundAlpha(); 2285 mNewBackgroundAlphas[i] = finalBackgroundAlpha; 2286 } else { 2287 cl.setBackgroundAlpha(finalBackgroundAlpha); 2288 cl.setShortcutAndWidgetAlpha(finalAlpha); 2289 } 2290 } 2291 2292 final View searchBar = mLauncher.getQsbBar(); 2293 final View overviewPanel = mLauncher.getOverviewPanel(); 2294 final View hotseat = mLauncher.getHotseat(); 2295 final View pageIndicator = getPageIndicator(); 2296 if (animated) { 2297 LauncherViewPropertyAnimator scale = new LauncherViewPropertyAnimator(this); 2298 scale.scaleX(mNewScale) 2299 .scaleY(mNewScale) 2300 .translationY(finalWorkspaceTranslationY) 2301 .setDuration(duration) 2302 .setInterpolator(mZoomInInterpolator); 2303 anim.play(scale); 2304 for (int index = 0; index < getChildCount(); index++) { 2305 final int i = index; 2306 final CellLayout cl = (CellLayout) getChildAt(i); 2307 float currentAlpha = cl.getShortcutsAndWidgets().getAlpha(); 2308 if (mOldAlphas[i] == 0 && mNewAlphas[i] == 0) { 2309 cl.setBackgroundAlpha(mNewBackgroundAlphas[i]); 2310 cl.setShortcutAndWidgetAlpha(mNewAlphas[i]); 2311 } else { 2312 if (mOldAlphas[i] != mNewAlphas[i] || currentAlpha != mNewAlphas[i]) { 2313 LauncherViewPropertyAnimator alphaAnim = 2314 new LauncherViewPropertyAnimator(cl.getShortcutsAndWidgets()); 2315 alphaAnim.alpha(mNewAlphas[i]) 2316 .setDuration(duration) 2317 .setInterpolator(mZoomInInterpolator); 2318 anim.play(alphaAnim); 2319 } 2320 if (mOldBackgroundAlphas[i] != 0 || 2321 mNewBackgroundAlphas[i] != 0) { 2322 ValueAnimator bgAnim = 2323 LauncherAnimUtils.ofFloat(cl, 0f, 1f); 2324 bgAnim.setInterpolator(mZoomInInterpolator); 2325 bgAnim.setDuration(duration); 2326 bgAnim.addUpdateListener(new LauncherAnimatorUpdateListener() { 2327 public void onAnimationUpdate(float a, float b) { 2328 cl.setBackgroundAlpha( 2329 a * mOldBackgroundAlphas[i] + 2330 b * mNewBackgroundAlphas[i]); 2331 } 2332 }); 2333 anim.play(bgAnim); 2334 } 2335 } 2336 } 2337 Animator pageIndicatorAlpha = null; 2338 if (pageIndicator != null) { 2339 pageIndicatorAlpha = new LauncherViewPropertyAnimator(pageIndicator) 2340 .alpha(finalHotseatAndPageIndicatorAlpha).withLayer(); 2341 pageIndicatorAlpha.addListener(new AlphaUpdateListener(pageIndicator)); 2342 } else { 2343 // create a dummy animation so we don't need to do null checks later 2344 pageIndicatorAlpha = ValueAnimator.ofFloat(0, 0); 2345 } 2346 2347 Animator hotseatAlpha = new LauncherViewPropertyAnimator(hotseat) 2348 .alpha(finalHotseatAndPageIndicatorAlpha).withLayer(); 2349 hotseatAlpha.addListener(new AlphaUpdateListener(hotseat)); 2350 2351 Animator searchBarAlpha = new LauncherViewPropertyAnimator(searchBar) 2352 .alpha(finalSearchBarAlpha).withLayer(); 2353 searchBarAlpha.addListener(new AlphaUpdateListener(searchBar)); 2354 2355 Animator overviewPanelAlpha = new LauncherViewPropertyAnimator(overviewPanel) 2356 .alpha(finalOverviewPanelAlpha).withLayer(); 2357 overviewPanelAlpha.addListener(new AlphaUpdateListener(overviewPanel)); 2358 2359 if (workspaceToOverview) { 2360 pageIndicatorAlpha.setInterpolator(new DecelerateInterpolator(2)); 2361 hotseatAlpha.setInterpolator(new DecelerateInterpolator(2)); 2362 overviewPanelAlpha.setInterpolator(null); 2363 } else if (overviewToWorkspace) { 2364 pageIndicatorAlpha.setInterpolator(null); 2365 hotseatAlpha.setInterpolator(null); 2366 overviewPanelAlpha.setInterpolator(new DecelerateInterpolator(2)); 2367 } 2368 2369 overviewPanelAlpha.setDuration(duration); 2370 pageIndicatorAlpha.setDuration(duration); 2371 hotseatAlpha.setDuration(duration); 2372 searchBarAlpha.setDuration(duration); 2373 2374 anim.play(overviewPanelAlpha); 2375 anim.play(hotseatAlpha); 2376 anim.play(searchBarAlpha); 2377 anim.play(pageIndicatorAlpha); 2378 anim.setStartDelay(delay); 2379 } else { 2380 overviewPanel.setAlpha(finalOverviewPanelAlpha); 2381 AlphaUpdateListener.updateVisibility(overviewPanel); 2382 hotseat.setAlpha(finalHotseatAndPageIndicatorAlpha); 2383 AlphaUpdateListener.updateVisibility(hotseat); 2384 if (pageIndicator != null) { 2385 pageIndicator.setAlpha(finalHotseatAndPageIndicatorAlpha); 2386 AlphaUpdateListener.updateVisibility(pageIndicator); 2387 } 2388 searchBar.setAlpha(finalSearchBarAlpha); 2389 AlphaUpdateListener.updateVisibility(searchBar); 2390 updateCustomContentVisibility(); 2391 setScaleX(mNewScale); 2392 setScaleY(mNewScale); 2393 setTranslationY(finalWorkspaceTranslationY); 2394 } 2395 mLauncher.updateVoiceButtonProxyVisible(false); 2396 2397 if (stateIsNormal) { 2398 animateBackgroundGradient(0f, animated); 2399 } else { 2400 animateBackgroundGradient(getResources().getInteger( 2401 R.integer.config_workspaceScrimAlpha) / 100f, animated); 2402 } 2403 return anim; 2404 } 2405 2406 static class AlphaUpdateListener implements AnimatorUpdateListener, AnimatorListener { 2407 View view; 2408 public AlphaUpdateListener(View v) { 2409 view = v; 2410 } 2411 2412 @Override 2413 public void onAnimationUpdate(ValueAnimator arg0) { 2414 updateVisibility(view); 2415 } 2416 2417 public static void updateVisibility(View view) { 2418 // We want to avoid the extra layout pass by setting the views to GONE unless 2419 // accessibility is on, in which case not setting them to GONE causes a glitch. 2420 int invisibleState = sAccessibilityEnabled ? GONE : INVISIBLE; 2421 if (view.getAlpha() < ALPHA_CUTOFF_THRESHOLD && view.getVisibility() != invisibleState) { 2422 view.setVisibility(invisibleState); 2423 } else if (view.getAlpha() > ALPHA_CUTOFF_THRESHOLD 2424 && view.getVisibility() != VISIBLE) { 2425 view.setVisibility(VISIBLE); 2426 } 2427 } 2428 2429 @Override 2430 public void onAnimationCancel(Animator arg0) { 2431 } 2432 2433 @Override 2434 public void onAnimationEnd(Animator arg0) { 2435 updateVisibility(view); 2436 } 2437 2438 @Override 2439 public void onAnimationRepeat(Animator arg0) { 2440 } 2441 2442 @Override 2443 public void onAnimationStart(Animator arg0) { 2444 // We want the views to be visible for animation, so fade-in/out is visible 2445 view.setVisibility(VISIBLE); 2446 } 2447 } 2448 2449 @Override 2450 public void onLauncherTransitionPrepare(Launcher l, boolean animated, boolean toWorkspace) { 2451 onTransitionPrepare(); 2452 } 2453 2454 @Override 2455 public void onLauncherTransitionStart(Launcher l, boolean animated, boolean toWorkspace) { 2456 } 2457 2458 @Override 2459 public void onLauncherTransitionStep(Launcher l, float t) { 2460 mTransitionProgress = t; 2461 } 2462 2463 @Override 2464 public void onLauncherTransitionEnd(Launcher l, boolean animated, boolean toWorkspace) { 2465 onTransitionEnd(); 2466 } 2467 2468 private void onTransitionPrepare() { 2469 mIsSwitchingState = true; 2470 2471 // Invalidate here to ensure that the pages are rendered during the state change transition. 2472 invalidate(); 2473 2474 updateChildrenLayersEnabled(false); 2475 hideCustomContentIfNecessary(); 2476 } 2477 2478 void updateCustomContentVisibility() { 2479 int visibility = mState == Workspace.State.NORMAL ? VISIBLE : INVISIBLE; 2480 if (hasCustomContent()) { 2481 mWorkspaceScreens.get(CUSTOM_CONTENT_SCREEN_ID).setVisibility(visibility); 2482 } 2483 } 2484 2485 void showCustomContentIfNecessary() { 2486 boolean show = mState == Workspace.State.NORMAL; 2487 if (show && hasCustomContent()) { 2488 mWorkspaceScreens.get(CUSTOM_CONTENT_SCREEN_ID).setVisibility(VISIBLE); 2489 } 2490 } 2491 2492 void hideCustomContentIfNecessary() { 2493 boolean hide = mState != Workspace.State.NORMAL; 2494 if (hide && hasCustomContent()) { 2495 disableLayoutTransitions(); 2496 mWorkspaceScreens.get(CUSTOM_CONTENT_SCREEN_ID).setVisibility(INVISIBLE); 2497 enableLayoutTransitions(); 2498 } 2499 } 2500 2501 private void onTransitionEnd() { 2502 mIsSwitchingState = false; 2503 updateChildrenLayersEnabled(false); 2504 // The code in getChangeStateAnimation to determine initialAlpha and finalAlpha will ensure 2505 // ensure that only the current page is visible during (and subsequently, after) the 2506 // transition animation. If fade adjacent pages is disabled, then re-enable the page 2507 // visibility after the transition animation. 2508 if (!mWorkspaceFadeInAdjacentScreens) { 2509 for (int i = 0; i < getChildCount(); i++) { 2510 final CellLayout cl = (CellLayout) getChildAt(i); 2511 cl.setShortcutAndWidgetAlpha(1f); 2512 } 2513 } else { 2514 for (int i = 0; i < numCustomPages(); i++) { 2515 final CellLayout cl = (CellLayout) getChildAt(i); 2516 cl.setShortcutAndWidgetAlpha(1f); 2517 } 2518 } 2519 showCustomContentIfNecessary(); 2520 } 2521 2522 @Override 2523 public View getContent() { 2524 return this; 2525 } 2526 2527 /** 2528 * Draw the View v into the given Canvas. 2529 * 2530 * @param v the view to draw 2531 * @param destCanvas the canvas to draw on 2532 * @param padding the horizontal and vertical padding to use when drawing 2533 */ 2534 private static void drawDragView(View v, Canvas destCanvas, int padding) { 2535 final Rect clipRect = sTempRect; 2536 v.getDrawingRect(clipRect); 2537 2538 boolean textVisible = false; 2539 2540 destCanvas.save(); 2541 if (v instanceof TextView) { 2542 Drawable d = ((TextView) v).getCompoundDrawables()[1]; 2543 Rect bounds = getDrawableBounds(d); 2544 clipRect.set(0, 0, bounds.width() + padding, bounds.height() + padding); 2545 destCanvas.translate(padding / 2 - bounds.left, padding / 2 - bounds.top); 2546 d.draw(destCanvas); 2547 } else { 2548 if (v instanceof FolderIcon) { 2549 // For FolderIcons the text can bleed into the icon area, and so we need to 2550 // hide the text completely (which can't be achieved by clipping). 2551 if (((FolderIcon) v).getTextVisible()) { 2552 ((FolderIcon) v).setTextVisible(false); 2553 textVisible = true; 2554 } 2555 } 2556 destCanvas.translate(-v.getScrollX() + padding / 2, -v.getScrollY() + padding / 2); 2557 destCanvas.clipRect(clipRect, Op.REPLACE); 2558 v.draw(destCanvas); 2559 2560 // Restore text visibility of FolderIcon if necessary 2561 if (textVisible) { 2562 ((FolderIcon) v).setTextVisible(true); 2563 } 2564 } 2565 destCanvas.restore(); 2566 } 2567 2568 /** 2569 * Returns a new bitmap to show when the given View is being dragged around. 2570 * Responsibility for the bitmap is transferred to the caller. 2571 * @param expectedPadding padding to add to the drag view. If a different padding was used 2572 * its value will be changed 2573 */ 2574 public Bitmap createDragBitmap(View v, AtomicInteger expectedPadding) { 2575 Bitmap b; 2576 2577 int padding = expectedPadding.get(); 2578 if (v instanceof TextView) { 2579 Drawable d = ((TextView) v).getCompoundDrawables()[1]; 2580 Rect bounds = getDrawableBounds(d); 2581 b = Bitmap.createBitmap(bounds.width() + padding, 2582 bounds.height() + padding, Bitmap.Config.ARGB_8888); 2583 expectedPadding.set(padding - bounds.left - bounds.top); 2584 } else { 2585 b = Bitmap.createBitmap( 2586 v.getWidth() + padding, v.getHeight() + padding, Bitmap.Config.ARGB_8888); 2587 } 2588 2589 mCanvas.setBitmap(b); 2590 drawDragView(v, mCanvas, padding); 2591 mCanvas.setBitmap(null); 2592 2593 return b; 2594 } 2595 2596 /** 2597 * Returns a new bitmap to be used as the object outline, e.g. to visualize the drop location. 2598 * Responsibility for the bitmap is transferred to the caller. 2599 */ 2600 private Bitmap createDragOutline(View v, int padding) { 2601 final int outlineColor = getResources().getColor(R.color.outline_color); 2602 final Bitmap b = Bitmap.createBitmap( 2603 v.getWidth() + padding, v.getHeight() + padding, Bitmap.Config.ARGB_8888); 2604 2605 mCanvas.setBitmap(b); 2606 drawDragView(v, mCanvas, padding); 2607 mOutlineHelper.applyExpensiveOutlineWithBlur(b, mCanvas, outlineColor, outlineColor); 2608 mCanvas.setBitmap(null); 2609 return b; 2610 } 2611 2612 /** 2613 * Returns a new bitmap to be used as the object outline, e.g. to visualize the drop location. 2614 * Responsibility for the bitmap is transferred to the caller. 2615 */ 2616 private Bitmap createDragOutline(Bitmap orig, int padding, int w, int h, 2617 boolean clipAlpha) { 2618 final int outlineColor = getResources().getColor(R.color.outline_color); 2619 final Bitmap b = Bitmap.createBitmap(w, h, Bitmap.Config.ARGB_8888); 2620 mCanvas.setBitmap(b); 2621 2622 Rect src = new Rect(0, 0, orig.getWidth(), orig.getHeight()); 2623 float scaleFactor = Math.min((w - padding) / (float) orig.getWidth(), 2624 (h - padding) / (float) orig.getHeight()); 2625 int scaledWidth = (int) (scaleFactor * orig.getWidth()); 2626 int scaledHeight = (int) (scaleFactor * orig.getHeight()); 2627 Rect dst = new Rect(0, 0, scaledWidth, scaledHeight); 2628 2629 // center the image 2630 dst.offset((w - scaledWidth) / 2, (h - scaledHeight) / 2); 2631 2632 mCanvas.drawBitmap(orig, src, dst, null); 2633 mOutlineHelper.applyExpensiveOutlineWithBlur(b, mCanvas, outlineColor, outlineColor, 2634 clipAlpha); 2635 mCanvas.setBitmap(null); 2636 2637 return b; 2638 } 2639 2640 void startDrag(CellLayout.CellInfo cellInfo) { 2641 View child = cellInfo.cell; 2642 2643 // Make sure the drag was started by a long press as opposed to a long click. 2644 if (!child.isInTouchMode()) { 2645 return; 2646 } 2647 2648 mDragInfo = cellInfo; 2649 child.setVisibility(INVISIBLE); 2650 CellLayout layout = (CellLayout) child.getParent().getParent(); 2651 layout.prepareChildForDrag(child); 2652 2653 beginDragShared(child, this); 2654 } 2655 2656 public void beginDragShared(View child, DragSource source) { 2657 child.clearFocus(); 2658 child.setPressed(false); 2659 2660 // The outline is used to visualize where the item will land if dropped 2661 mDragOutline = createDragOutline(child, DRAG_BITMAP_PADDING); 2662 2663 mLauncher.onDragStarted(child); 2664 // The drag bitmap follows the touch point around on the screen 2665 AtomicInteger padding = new AtomicInteger(DRAG_BITMAP_PADDING); 2666 final Bitmap b = createDragBitmap(child, padding); 2667 2668 final int bmpWidth = b.getWidth(); 2669 final int bmpHeight = b.getHeight(); 2670 2671 float scale = mLauncher.getDragLayer().getLocationInDragLayer(child, mTempXY); 2672 int dragLayerX = Math.round(mTempXY[0] - (bmpWidth - scale * child.getWidth()) / 2); 2673 int dragLayerY = Math.round(mTempXY[1] - (bmpHeight - scale * bmpHeight) / 2 2674 - padding.get() / 2); 2675 2676 LauncherAppState app = LauncherAppState.getInstance(); 2677 DeviceProfile grid = app.getDynamicGrid().getDeviceProfile(); 2678 Point dragVisualizeOffset = null; 2679 Rect dragRect = null; 2680 if (child instanceof BubbleTextView) { 2681 int iconSize = grid.iconSizePx; 2682 int top = child.getPaddingTop(); 2683 int left = (bmpWidth - iconSize) / 2; 2684 int right = left + iconSize; 2685 int bottom = top + iconSize; 2686 dragLayerY += top; 2687 // Note: The drag region is used to calculate drag layer offsets, but the 2688 // dragVisualizeOffset in addition to the dragRect (the size) to position the outline. 2689 dragVisualizeOffset = new Point(-padding.get() / 2, padding.get() / 2); 2690 dragRect = new Rect(left, top, right, bottom); 2691 } else if (child instanceof FolderIcon) { 2692 int previewSize = grid.folderIconSizePx; 2693 dragRect = new Rect(0, child.getPaddingTop(), child.getWidth(), previewSize); 2694 } 2695 2696 // Clear the pressed state if necessary 2697 if (child instanceof BubbleTextView) { 2698 BubbleTextView icon = (BubbleTextView) child; 2699 icon.clearPressedBackground(); 2700 } 2701 2702 if (child.getTag() == null || !(child.getTag() instanceof ItemInfo)) { 2703 String msg = "Drag started with a view that has no tag set. This " 2704 + "will cause a crash (issue 11627249) down the line. " 2705 + "View: " + child + " tag: " + child.getTag(); 2706 throw new IllegalStateException(msg); 2707 } 2708 2709 DragView dv = mDragController.startDrag(b, dragLayerX, dragLayerY, source, child.getTag(), 2710 DragController.DRAG_ACTION_MOVE, dragVisualizeOffset, dragRect, scale); 2711 dv.setIntrinsicIconScaleFactor(source.getIntrinsicIconScaleFactor()); 2712 2713 if (child.getParent() instanceof ShortcutAndWidgetContainer) { 2714 mDragSourceInternal = (ShortcutAndWidgetContainer) child.getParent(); 2715 } 2716 2717 b.recycle(); 2718 } 2719 2720 public void beginExternalDragShared(View child, DragSource source) { 2721 LauncherAppState app = LauncherAppState.getInstance(); 2722 DeviceProfile grid = app.getDynamicGrid().getDeviceProfile(); 2723 int iconSize = grid.iconSizePx; 2724 2725 // Notify launcher of drag start 2726 mLauncher.onDragStarted(child); 2727 2728 // Compose a new drag bitmap that is of the icon size 2729 AtomicInteger padding = new AtomicInteger(DRAG_BITMAP_PADDING); 2730 final Bitmap tmpB = createDragBitmap(child, padding); 2731 Bitmap b = Bitmap.createBitmap(iconSize, iconSize, Bitmap.Config.ARGB_8888); 2732 Paint p = new Paint(); 2733 p.setFilterBitmap(true); 2734 mCanvas.setBitmap(b); 2735 mCanvas.drawBitmap(tmpB, new Rect(0, 0, tmpB.getWidth(), tmpB.getHeight()), 2736 new Rect(0, 0, iconSize, iconSize), p); 2737 mCanvas.setBitmap(null); 2738 2739 // Find the child's location on the screen 2740 int bmpWidth = tmpB.getWidth(); 2741 float iconScale = (float) bmpWidth / iconSize; 2742 float scale = mLauncher.getDragLayer().getLocationInDragLayer(child, mTempXY) * iconScale; 2743 int dragLayerX = Math.round(mTempXY[0] - (bmpWidth - scale * child.getWidth()) / 2); 2744 int dragLayerY = Math.round(mTempXY[1]); 2745 2746 // Note: The drag region is used to calculate drag layer offsets, but the 2747 // dragVisualizeOffset in addition to the dragRect (the size) to position the outline. 2748 Point dragVisualizeOffset = new Point(-padding.get() / 2, padding.get() / 2); 2749 Rect dragRect = new Rect(0, 0, iconSize, iconSize); 2750 2751 if (child.getTag() == null || !(child.getTag() instanceof ItemInfo)) { 2752 String msg = "Drag started with a view that has no tag set. This " 2753 + "will cause a crash (issue 11627249) down the line. " 2754 + "View: " + child + " tag: " + child.getTag(); 2755 throw new IllegalStateException(msg); 2756 } 2757 2758 // Start the drag 2759 DragView dv = mDragController.startDrag(b, dragLayerX, dragLayerY, source, child.getTag(), 2760 DragController.DRAG_ACTION_MOVE, dragVisualizeOffset, dragRect, scale); 2761 dv.setIntrinsicIconScaleFactor(source.getIntrinsicIconScaleFactor()); 2762 2763 // Recycle temporary bitmaps 2764 tmpB.recycle(); 2765 } 2766 2767 void addApplicationShortcut(ShortcutInfo info, CellLayout target, long container, long screenId, 2768 int cellX, int cellY, boolean insertAtFirst, int intersectX, int intersectY) { 2769 View view = mLauncher.createShortcut(R.layout.application, target, (ShortcutInfo) info); 2770 2771 final int[] cellXY = new int[2]; 2772 target.findCellForSpanThatIntersects(cellXY, 1, 1, intersectX, intersectY); 2773 addInScreen(view, container, screenId, cellXY[0], cellXY[1], 1, 1, insertAtFirst); 2774 2775 LauncherModel.addOrMoveItemInDatabase(mLauncher, info, container, screenId, cellXY[0], 2776 cellXY[1]); 2777 } 2778 2779 public boolean transitionStateShouldAllowDrop() { 2780 return ((!isSwitchingState() || mTransitionProgress > 0.5f) && 2781 (mState == State.NORMAL || mState == State.SPRING_LOADED)); 2782 } 2783 2784 /** 2785 * {@inheritDoc} 2786 */ 2787 public boolean acceptDrop(DragObject d) { 2788 // If it's an external drop (e.g. from All Apps), check if it should be accepted 2789 CellLayout dropTargetLayout = mDropToLayout; 2790 if (d.dragSource != this) { 2791 // Don't accept the drop if we're not over a screen at time of drop 2792 if (dropTargetLayout == null) { 2793 return false; 2794 } 2795 if (!transitionStateShouldAllowDrop()) return false; 2796 2797 mDragViewVisualCenter = getDragViewVisualCenter(d.x, d.y, d.xOffset, d.yOffset, 2798 d.dragView, mDragViewVisualCenter); 2799 2800 // We want the point to be mapped to the dragTarget. 2801 if (mLauncher.isHotseatLayout(dropTargetLayout)) { 2802 mapPointFromSelfToHotseatLayout(mLauncher.getHotseat(), mDragViewVisualCenter); 2803 } else { 2804 mapPointFromSelfToChild(dropTargetLayout, mDragViewVisualCenter, null); 2805 } 2806 2807 int spanX = 1; 2808 int spanY = 1; 2809 if (mDragInfo != null) { 2810 final CellLayout.CellInfo dragCellInfo = mDragInfo; 2811 spanX = dragCellInfo.spanX; 2812 spanY = dragCellInfo.spanY; 2813 } else { 2814 final ItemInfo dragInfo = (ItemInfo) d.dragInfo; 2815 spanX = dragInfo.spanX; 2816 spanY = dragInfo.spanY; 2817 } 2818 2819 int minSpanX = spanX; 2820 int minSpanY = spanY; 2821 if (d.dragInfo instanceof PendingAddWidgetInfo) { 2822 minSpanX = ((PendingAddWidgetInfo) d.dragInfo).minSpanX; 2823 minSpanY = ((PendingAddWidgetInfo) d.dragInfo).minSpanY; 2824 } 2825 2826 mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], 2827 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, dropTargetLayout, 2828 mTargetCell); 2829 float distance = dropTargetLayout.getDistanceFromCell(mDragViewVisualCenter[0], 2830 mDragViewVisualCenter[1], mTargetCell); 2831 if (mCreateUserFolderOnDrop && willCreateUserFolder((ItemInfo) d.dragInfo, 2832 dropTargetLayout, mTargetCell, distance, true)) { 2833 return true; 2834 } 2835 2836 if (mAddToExistingFolderOnDrop && willAddToExistingUserFolder((ItemInfo) d.dragInfo, 2837 dropTargetLayout, mTargetCell, distance)) { 2838 return true; 2839 } 2840 2841 int[] resultSpan = new int[2]; 2842 mTargetCell = dropTargetLayout.performReorder((int) mDragViewVisualCenter[0], 2843 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, spanX, spanY, 2844 null, mTargetCell, resultSpan, CellLayout.MODE_ACCEPT_DROP); 2845 boolean foundCell = mTargetCell[0] >= 0 && mTargetCell[1] >= 0; 2846 2847 // Don't accept the drop if there's no room for the item 2848 if (!foundCell) { 2849 // Don't show the message if we are dropping on the AllApps button and the hotseat 2850 // is full 2851 boolean isHotseat = mLauncher.isHotseatLayout(dropTargetLayout); 2852 if (mTargetCell != null && isHotseat) { 2853 Hotseat hotseat = mLauncher.getHotseat(); 2854 if (hotseat.isAllAppsButtonRank( 2855 hotseat.getOrderInHotseat(mTargetCell[0], mTargetCell[1]))) { 2856 return false; 2857 } 2858 } 2859 2860 mLauncher.showOutOfSpaceMessage(isHotseat); 2861 return false; 2862 } 2863 } 2864 2865 long screenId = getIdForScreen(dropTargetLayout); 2866 if (screenId == EXTRA_EMPTY_SCREEN_ID) { 2867 commitExtraEmptyScreen(); 2868 } 2869 2870 return true; 2871 } 2872 2873 boolean willCreateUserFolder(ItemInfo info, CellLayout target, int[] targetCell, float 2874 distance, boolean considerTimeout) { 2875 if (distance > mMaxDistanceForFolderCreation) return false; 2876 View dropOverView = target.getChildAt(targetCell[0], targetCell[1]); 2877 2878 if (dropOverView != null) { 2879 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) dropOverView.getLayoutParams(); 2880 if (lp.useTmpCoords && (lp.tmpCellX != lp.cellX || lp.tmpCellY != lp.tmpCellY)) { 2881 return false; 2882 } 2883 } 2884 2885 boolean hasntMoved = false; 2886 if (mDragInfo != null) { 2887 hasntMoved = dropOverView == mDragInfo.cell; 2888 } 2889 2890 if (dropOverView == null || hasntMoved || (considerTimeout && !mCreateUserFolderOnDrop)) { 2891 return false; 2892 } 2893 2894 boolean aboveShortcut = (dropOverView.getTag() instanceof ShortcutInfo); 2895 boolean willBecomeShortcut = 2896 (info.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPLICATION || 2897 info.itemType == LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT); 2898 2899 return (aboveShortcut && willBecomeShortcut); 2900 } 2901 2902 boolean willAddToExistingUserFolder(Object dragInfo, CellLayout target, int[] targetCell, 2903 float distance) { 2904 if (distance > mMaxDistanceForFolderCreation) return false; 2905 View dropOverView = target.getChildAt(targetCell[0], targetCell[1]); 2906 2907 if (dropOverView != null) { 2908 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) dropOverView.getLayoutParams(); 2909 if (lp.useTmpCoords && (lp.tmpCellX != lp.cellX || lp.tmpCellY != lp.tmpCellY)) { 2910 return false; 2911 } 2912 } 2913 2914 if (dropOverView instanceof FolderIcon) { 2915 FolderIcon fi = (FolderIcon) dropOverView; 2916 if (fi.acceptDrop(dragInfo)) { 2917 return true; 2918 } 2919 } 2920 return false; 2921 } 2922 2923 boolean createUserFolderIfNecessary(View newView, long container, CellLayout target, 2924 int[] targetCell, float distance, boolean external, DragView dragView, 2925 Runnable postAnimationRunnable) { 2926 if (distance > mMaxDistanceForFolderCreation) return false; 2927 View v = target.getChildAt(targetCell[0], targetCell[1]); 2928 2929 boolean hasntMoved = false; 2930 if (mDragInfo != null) { 2931 CellLayout cellParent = getParentCellLayoutForView(mDragInfo.cell); 2932 hasntMoved = (mDragInfo.cellX == targetCell[0] && 2933 mDragInfo.cellY == targetCell[1]) && (cellParent == target); 2934 } 2935 2936 if (v == null || hasntMoved || !mCreateUserFolderOnDrop) return false; 2937 mCreateUserFolderOnDrop = false; 2938 final long screenId = (targetCell == null) ? mDragInfo.screenId : getIdForScreen(target); 2939 2940 boolean aboveShortcut = (v.getTag() instanceof ShortcutInfo); 2941 boolean willBecomeShortcut = (newView.getTag() instanceof ShortcutInfo); 2942 2943 if (aboveShortcut && willBecomeShortcut) { 2944 ShortcutInfo sourceInfo = (ShortcutInfo) newView.getTag(); 2945 ShortcutInfo destInfo = (ShortcutInfo) v.getTag(); 2946 // if the drag started here, we need to remove it from the workspace 2947 if (!external) { 2948 getParentCellLayoutForView(mDragInfo.cell).removeView(mDragInfo.cell); 2949 } 2950 2951 Rect folderLocation = new Rect(); 2952 float scale = mLauncher.getDragLayer().getDescendantRectRelativeToSelf(v, folderLocation); 2953 target.removeView(v); 2954 2955 FolderIcon fi = 2956 mLauncher.addFolder(target, container, screenId, targetCell[0], targetCell[1]); 2957 destInfo.cellX = -1; 2958 destInfo.cellY = -1; 2959 sourceInfo.cellX = -1; 2960 sourceInfo.cellY = -1; 2961 2962 // If the dragView is null, we can't animate 2963 boolean animate = dragView != null; 2964 if (animate) { 2965 fi.performCreateAnimation(destInfo, v, sourceInfo, dragView, folderLocation, scale, 2966 postAnimationRunnable); 2967 } else { 2968 fi.addItem(destInfo); 2969 fi.addItem(sourceInfo); 2970 } 2971 return true; 2972 } 2973 return false; 2974 } 2975 2976 boolean addToExistingFolderIfNecessary(View newView, CellLayout target, int[] targetCell, 2977 float distance, DragObject d, boolean external) { 2978 if (distance > mMaxDistanceForFolderCreation) return false; 2979 2980 View dropOverView = target.getChildAt(targetCell[0], targetCell[1]); 2981 if (!mAddToExistingFolderOnDrop) return false; 2982 mAddToExistingFolderOnDrop = false; 2983 2984 if (dropOverView instanceof FolderIcon) { 2985 FolderIcon fi = (FolderIcon) dropOverView; 2986 if (fi.acceptDrop(d.dragInfo)) { 2987 fi.onDrop(d); 2988 2989 // if the drag started here, we need to remove it from the workspace 2990 if (!external) { 2991 getParentCellLayoutForView(mDragInfo.cell).removeView(mDragInfo.cell); 2992 } 2993 return true; 2994 } 2995 } 2996 return false; 2997 } 2998 2999 public void onDrop(final DragObject d) { 3000 mDragViewVisualCenter = getDragViewVisualCenter(d.x, d.y, d.xOffset, d.yOffset, d.dragView, 3001 mDragViewVisualCenter); 3002 3003 CellLayout dropTargetLayout = mDropToLayout; 3004 3005 // We want the point to be mapped to the dragTarget. 3006 if (dropTargetLayout != null) { 3007 if (mLauncher.isHotseatLayout(dropTargetLayout)) { 3008 mapPointFromSelfToHotseatLayout(mLauncher.getHotseat(), mDragViewVisualCenter); 3009 } else { 3010 mapPointFromSelfToChild(dropTargetLayout, mDragViewVisualCenter, null); 3011 } 3012 } 3013 3014 int snapScreen = -1; 3015 boolean resizeOnDrop = false; 3016 if (d.dragSource != this) { 3017 final int[] touchXY = new int[] { (int) mDragViewVisualCenter[0], 3018 (int) mDragViewVisualCenter[1] }; 3019 onDropExternal(touchXY, d.dragInfo, dropTargetLayout, false, d); 3020 } else if (mDragInfo != null) { 3021 final View cell = mDragInfo.cell; 3022 3023 Runnable resizeRunnable = null; 3024 if (dropTargetLayout != null && !d.cancelled) { 3025 // Move internally 3026 boolean hasMovedLayouts = (getParentCellLayoutForView(cell) != dropTargetLayout); 3027 boolean hasMovedIntoHotseat = mLauncher.isHotseatLayout(dropTargetLayout); 3028 long container = hasMovedIntoHotseat ? 3029 LauncherSettings.Favorites.CONTAINER_HOTSEAT : 3030 LauncherSettings.Favorites.CONTAINER_DESKTOP; 3031 long screenId = (mTargetCell[0] < 0) ? 3032 mDragInfo.screenId : getIdForScreen(dropTargetLayout); 3033 int spanX = mDragInfo != null ? mDragInfo.spanX : 1; 3034 int spanY = mDragInfo != null ? mDragInfo.spanY : 1; 3035 // First we find the cell nearest to point at which the item is 3036 // dropped, without any consideration to whether there is an item there. 3037 3038 mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], (int) 3039 mDragViewVisualCenter[1], spanX, spanY, dropTargetLayout, mTargetCell); 3040 float distance = dropTargetLayout.getDistanceFromCell(mDragViewVisualCenter[0], 3041 mDragViewVisualCenter[1], mTargetCell); 3042 3043 // If the item being dropped is a shortcut and the nearest drop 3044 // cell also contains a shortcut, then create a folder with the two shortcuts. 3045 if (!mInScrollArea && createUserFolderIfNecessary(cell, container, 3046 dropTargetLayout, mTargetCell, distance, false, d.dragView, null)) { 3047 return; 3048 } 3049 3050 if (addToExistingFolderIfNecessary(cell, dropTargetLayout, mTargetCell, 3051 distance, d, false)) { 3052 return; 3053 } 3054 3055 // Aside from the special case where we're dropping a shortcut onto a shortcut, 3056 // we need to find the nearest cell location that is vacant 3057 ItemInfo item = (ItemInfo) d.dragInfo; 3058 int minSpanX = item.spanX; 3059 int minSpanY = item.spanY; 3060 if (item.minSpanX > 0 && item.minSpanY > 0) { 3061 minSpanX = item.minSpanX; 3062 minSpanY = item.minSpanY; 3063 } 3064 3065 int[] resultSpan = new int[2]; 3066 mTargetCell = dropTargetLayout.performReorder((int) mDragViewVisualCenter[0], 3067 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, spanX, spanY, cell, 3068 mTargetCell, resultSpan, CellLayout.MODE_ON_DROP); 3069 3070 boolean foundCell = mTargetCell[0] >= 0 && mTargetCell[1] >= 0; 3071 3072 // if the widget resizes on drop 3073 if (foundCell && (cell instanceof AppWidgetHostView) && 3074 (resultSpan[0] != item.spanX || resultSpan[1] != item.spanY)) { 3075 resizeOnDrop = true; 3076 item.spanX = resultSpan[0]; 3077 item.spanY = resultSpan[1]; 3078 AppWidgetHostView awhv = (AppWidgetHostView) cell; 3079 AppWidgetResizeFrame.updateWidgetSizeRanges(awhv, mLauncher, resultSpan[0], 3080 resultSpan[1]); 3081 } 3082 3083 if (getScreenIdForPageIndex(mCurrentPage) != screenId && !hasMovedIntoHotseat) { 3084 snapScreen = getPageIndexForScreenId(screenId); 3085 snapToPage(snapScreen); 3086 } 3087 3088 if (foundCell) { 3089 final ItemInfo info = (ItemInfo) cell.getTag(); 3090 if (hasMovedLayouts) { 3091 // Reparent the view 3092 CellLayout parentCell = getParentCellLayoutForView(cell); 3093 if (parentCell != null) { 3094 parentCell.removeView(cell); 3095 } else if (LauncherAppState.isDogfoodBuild()) { 3096 throw new NullPointerException("mDragInfo.cell has null parent"); 3097 } 3098 addInScreen(cell, container, screenId, mTargetCell[0], mTargetCell[1], 3099 info.spanX, info.spanY); 3100 } 3101 3102 // update the item's position after drop 3103 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) cell.getLayoutParams(); 3104 lp.cellX = lp.tmpCellX = mTargetCell[0]; 3105 lp.cellY = lp.tmpCellY = mTargetCell[1]; 3106 lp.cellHSpan = item.spanX; 3107 lp.cellVSpan = item.spanY; 3108 lp.isLockedToGrid = true; 3109 3110 if (container != LauncherSettings.Favorites.CONTAINER_HOTSEAT && 3111 cell instanceof LauncherAppWidgetHostView) { 3112 final CellLayout cellLayout = dropTargetLayout; 3113 // We post this call so that the widget has a chance to be placed 3114 // in its final location 3115 3116 final LauncherAppWidgetHostView hostView = (LauncherAppWidgetHostView) cell; 3117 AppWidgetProviderInfo pinfo = hostView.getAppWidgetInfo(); 3118 if (pinfo != null && 3119 pinfo.resizeMode != AppWidgetProviderInfo.RESIZE_NONE) { 3120 final Runnable addResizeFrame = new Runnable() { 3121 public void run() { 3122 DragLayer dragLayer = mLauncher.getDragLayer(); 3123 dragLayer.addResizeFrame(info, hostView, cellLayout); 3124 } 3125 }; 3126 resizeRunnable = (new Runnable() { 3127 public void run() { 3128 if (!isPageMoving()) { 3129 addResizeFrame.run(); 3130 } else { 3131 mDelayedResizeRunnable = addResizeFrame; 3132 } 3133 } 3134 }); 3135 } 3136 } 3137 3138 LauncherModel.modifyItemInDatabase(mLauncher, info, container, screenId, lp.cellX, 3139 lp.cellY, item.spanX, item.spanY); 3140 } else { 3141 // If we can't find a drop location, we return the item to its original position 3142 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) cell.getLayoutParams(); 3143 mTargetCell[0] = lp.cellX; 3144 mTargetCell[1] = lp.cellY; 3145 CellLayout layout = (CellLayout) cell.getParent().getParent(); 3146 layout.markCellsAsOccupiedForView(cell); 3147 } 3148 } 3149 3150 final CellLayout parent = (CellLayout) cell.getParent().getParent(); 3151 final Runnable finalResizeRunnable = resizeRunnable; 3152 // Prepare it to be animated into its new position 3153 // This must be called after the view has been re-parented 3154 final Runnable onCompleteRunnable = new Runnable() { 3155 @Override 3156 public void run() { 3157 mAnimatingViewIntoPlace = false; 3158 updateChildrenLayersEnabled(false); 3159 if (finalResizeRunnable != null) { 3160 finalResizeRunnable.run(); 3161 } 3162 } 3163 }; 3164 mAnimatingViewIntoPlace = true; 3165 if (d.dragView.hasDrawn()) { 3166 final ItemInfo info = (ItemInfo) cell.getTag(); 3167 if (info.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET) { 3168 int animationType = resizeOnDrop ? ANIMATE_INTO_POSITION_AND_RESIZE : 3169 ANIMATE_INTO_POSITION_AND_DISAPPEAR; 3170 animateWidgetDrop(info, parent, d.dragView, 3171 onCompleteRunnable, animationType, cell, false); 3172 } else { 3173 int duration = snapScreen < 0 ? -1 : ADJACENT_SCREEN_DROP_DURATION; 3174 mLauncher.getDragLayer().animateViewIntoPosition(d.dragView, cell, duration, 3175 onCompleteRunnable, this); 3176 } 3177 } else { 3178 d.deferDragViewCleanupPostAnimation = false; 3179 cell.setVisibility(VISIBLE); 3180 } 3181 parent.onDropChild(cell); 3182 } 3183 } 3184 3185 public void setFinalScrollForPageChange(int pageIndex) { 3186 CellLayout cl = (CellLayout) getChildAt(pageIndex); 3187 if (cl != null) { 3188 mSavedScrollX = getScrollX(); 3189 mSavedTranslationX = cl.getTranslationX(); 3190 mSavedRotationY = cl.getRotationY(); 3191 final int newX = getScrollForPage(pageIndex); 3192 setScrollX(newX); 3193 cl.setTranslationX(0f); 3194 cl.setRotationY(0f); 3195 } 3196 } 3197 3198 public void resetFinalScrollForPageChange(int pageIndex) { 3199 if (pageIndex >= 0) { 3200 CellLayout cl = (CellLayout) getChildAt(pageIndex); 3201 setScrollX(mSavedScrollX); 3202 cl.setTranslationX(mSavedTranslationX); 3203 cl.setRotationY(mSavedRotationY); 3204 } 3205 } 3206 3207 public void getViewLocationRelativeToSelf(View v, int[] location) { 3208 getLocationInWindow(location); 3209 int x = location[0]; 3210 int y = location[1]; 3211 3212 v.getLocationInWindow(location); 3213 int vX = location[0]; 3214 int vY = location[1]; 3215 3216 location[0] = vX - x; 3217 location[1] = vY - y; 3218 } 3219 3220 public void onDragEnter(DragObject d) { 3221 mDragEnforcer.onDragEnter(); 3222 mCreateUserFolderOnDrop = false; 3223 mAddToExistingFolderOnDrop = false; 3224 3225 mDropToLayout = null; 3226 CellLayout layout = getCurrentDropLayout(); 3227 setCurrentDropLayout(layout); 3228 setCurrentDragOverlappingLayout(layout); 3229 3230 if (!workspaceInModalState()) { 3231 mLauncher.getDragLayer().showPageHints(); 3232 } 3233 } 3234 3235 /** Return a rect that has the cellWidth/cellHeight (left, top), and 3236 * widthGap/heightGap (right, bottom) */ 3237 static Rect getCellLayoutMetrics(Launcher launcher, int orientation) { 3238 LauncherAppState app = LauncherAppState.getInstance(); 3239 DeviceProfile grid = app.getDynamicGrid().getDeviceProfile(); 3240 3241 Display display = launcher.getWindowManager().getDefaultDisplay(); 3242 Point smallestSize = new Point(); 3243 Point largestSize = new Point(); 3244 display.getCurrentSizeRange(smallestSize, largestSize); 3245 int countX = (int) grid.numColumns; 3246 int countY = (int) grid.numRows; 3247 if (orientation == CellLayout.LANDSCAPE) { 3248 if (mLandscapeCellLayoutMetrics == null) { 3249 Rect padding = grid.getWorkspacePadding(CellLayout.LANDSCAPE); 3250 int width = largestSize.x - padding.left - padding.right; 3251 int height = smallestSize.y - padding.top - padding.bottom; 3252 mLandscapeCellLayoutMetrics = new Rect(); 3253 mLandscapeCellLayoutMetrics.set( 3254 grid.calculateCellWidth(width, countX), 3255 grid.calculateCellHeight(height, countY), 0, 0); 3256 } 3257 return mLandscapeCellLayoutMetrics; 3258 } else if (orientation == CellLayout.PORTRAIT) { 3259 if (mPortraitCellLayoutMetrics == null) { 3260 Rect padding = grid.getWorkspacePadding(CellLayout.PORTRAIT); 3261 int width = smallestSize.x - padding.left - padding.right; 3262 int height = largestSize.y - padding.top - padding.bottom; 3263 mPortraitCellLayoutMetrics = new Rect(); 3264 mPortraitCellLayoutMetrics.set( 3265 grid.calculateCellWidth(width, countX), 3266 grid.calculateCellHeight(height, countY), 0, 0); 3267 } 3268 return mPortraitCellLayoutMetrics; 3269 } 3270 return null; 3271 } 3272 3273 public void onDragExit(DragObject d) { 3274 mDragEnforcer.onDragExit(); 3275 3276 // Here we store the final page that will be dropped to, if the workspace in fact 3277 // receives the drop 3278 if (mInScrollArea) { 3279 if (isPageMoving()) { 3280 // If the user drops while the page is scrolling, we should use that page as the 3281 // destination instead of the page that is being hovered over. 3282 mDropToLayout = (CellLayout) getPageAt(getNextPage()); 3283 } else { 3284 mDropToLayout = mDragOverlappingLayout; 3285 } 3286 } else { 3287 mDropToLayout = mDragTargetLayout; 3288 } 3289 3290 if (mDragMode == DRAG_MODE_CREATE_FOLDER) { 3291 mCreateUserFolderOnDrop = true; 3292 } else if (mDragMode == DRAG_MODE_ADD_TO_FOLDER) { 3293 mAddToExistingFolderOnDrop = true; 3294 } 3295 3296 // Reset the scroll area and previous drag target 3297 onResetScrollArea(); 3298 setCurrentDropLayout(null); 3299 setCurrentDragOverlappingLayout(null); 3300 3301 mSpringLoadedDragController.cancel(); 3302 3303 if (!mIsPageMoving) { 3304 hideOutlines(); 3305 } 3306 mLauncher.getDragLayer().hidePageHints(); 3307 } 3308 3309 void setCurrentDropLayout(CellLayout layout) { 3310 if (mDragTargetLayout != null) { 3311 mDragTargetLayout.revertTempState(); 3312 mDragTargetLayout.onDragExit(); 3313 } 3314 mDragTargetLayout = layout; 3315 if (mDragTargetLayout != null) { 3316 mDragTargetLayout.onDragEnter(); 3317 } 3318 cleanupReorder(true); 3319 cleanupFolderCreation(); 3320 setCurrentDropOverCell(-1, -1); 3321 } 3322 3323 void setCurrentDragOverlappingLayout(CellLayout layout) { 3324 if (mDragOverlappingLayout != null) { 3325 mDragOverlappingLayout.setIsDragOverlapping(false); 3326 } 3327 mDragOverlappingLayout = layout; 3328 if (mDragOverlappingLayout != null) { 3329 mDragOverlappingLayout.setIsDragOverlapping(true); 3330 } 3331 invalidate(); 3332 } 3333 3334 void setCurrentDropOverCell(int x, int y) { 3335 if (x != mDragOverX || y != mDragOverY) { 3336 mDragOverX = x; 3337 mDragOverY = y; 3338 setDragMode(DRAG_MODE_NONE); 3339 } 3340 } 3341 3342 void setDragMode(int dragMode) { 3343 if (dragMode != mDragMode) { 3344 if (dragMode == DRAG_MODE_NONE) { 3345 cleanupAddToFolder(); 3346 // We don't want to cancel the re-order alarm every time the target cell changes 3347 // as this feels to slow / unresponsive. 3348 cleanupReorder(false); 3349 cleanupFolderCreation(); 3350 } else if (dragMode == DRAG_MODE_ADD_TO_FOLDER) { 3351 cleanupReorder(true); 3352 cleanupFolderCreation(); 3353 } else if (dragMode == DRAG_MODE_CREATE_FOLDER) { 3354 cleanupAddToFolder(); 3355 cleanupReorder(true); 3356 } else if (dragMode == DRAG_MODE_REORDER) { 3357 cleanupAddToFolder(); 3358 cleanupFolderCreation(); 3359 } 3360 mDragMode = dragMode; 3361 } 3362 } 3363 3364 private void cleanupFolderCreation() { 3365 if (mDragFolderRingAnimator != null) { 3366 mDragFolderRingAnimator.animateToNaturalState(); 3367 mDragFolderRingAnimator = null; 3368 } 3369 mFolderCreationAlarm.setOnAlarmListener(null); 3370 mFolderCreationAlarm.cancelAlarm(); 3371 } 3372 3373 private void cleanupAddToFolder() { 3374 if (mDragOverFolderIcon != null) { 3375 mDragOverFolderIcon.onDragExit(null); 3376 mDragOverFolderIcon = null; 3377 } 3378 } 3379 3380 private void cleanupReorder(boolean cancelAlarm) { 3381 // Any pending reorders are canceled 3382 if (cancelAlarm) { 3383 mReorderAlarm.cancelAlarm(); 3384 } 3385 mLastReorderX = -1; 3386 mLastReorderY = -1; 3387 } 3388 3389 /* 3390 * 3391 * Convert the 2D coordinate xy from the parent View's coordinate space to this CellLayout's 3392 * coordinate space. The argument xy is modified with the return result. 3393 * 3394 * if cachedInverseMatrix is not null, this method will just use that matrix instead of 3395 * computing it itself; we use this to avoid redundant matrix inversions in 3396 * findMatchingPageForDragOver 3397 * 3398 */ 3399 void mapPointFromSelfToChild(View v, float[] xy, Matrix cachedInverseMatrix) { 3400 xy[0] = xy[0] - v.getLeft(); 3401 xy[1] = xy[1] - v.getTop(); 3402 } 3403 3404 boolean isPointInSelfOverHotseat(int x, int y, Rect r) { 3405 if (r == null) { 3406 r = new Rect(); 3407 } 3408 mTempPt[0] = x; 3409 mTempPt[1] = y; 3410 mLauncher.getDragLayer().getDescendantCoordRelativeToSelf(this, mTempPt, true); 3411 3412 LauncherAppState app = LauncherAppState.getInstance(); 3413 DeviceProfile grid = app.getDynamicGrid().getDeviceProfile(); 3414 r = grid.getHotseatRect(); 3415 if (r.contains(mTempPt[0], mTempPt[1])) { 3416 return true; 3417 } 3418 return false; 3419 } 3420 3421 void mapPointFromSelfToHotseatLayout(Hotseat hotseat, float[] xy) { 3422 mTempPt[0] = (int) xy[0]; 3423 mTempPt[1] = (int) xy[1]; 3424 mLauncher.getDragLayer().getDescendantCoordRelativeToSelf(this, mTempPt, true); 3425 mLauncher.getDragLayer().mapCoordInSelfToDescendent(hotseat.getLayout(), mTempPt); 3426 3427 xy[0] = mTempPt[0]; 3428 xy[1] = mTempPt[1]; 3429 } 3430 3431 /* 3432 * 3433 * Convert the 2D coordinate xy from this CellLayout's coordinate space to 3434 * the parent View's coordinate space. The argument xy is modified with the return result. 3435 * 3436 */ 3437 void mapPointFromChildToSelf(View v, float[] xy) { 3438 xy[0] += v.getLeft(); 3439 xy[1] += v.getTop(); 3440 } 3441 3442 static private float squaredDistance(float[] point1, float[] point2) { 3443 float distanceX = point1[0] - point2[0]; 3444 float distanceY = point2[1] - point2[1]; 3445 return distanceX * distanceX + distanceY * distanceY; 3446 } 3447 3448 /* 3449 * 3450 * This method returns the CellLayout that is currently being dragged to. In order to drag 3451 * to a CellLayout, either the touch point must be directly over the CellLayout, or as a second 3452 * strategy, we see if the dragView is overlapping any CellLayout and choose the closest one 3453 * 3454 * Return null if no CellLayout is currently being dragged over 3455 * 3456 */ 3457 private CellLayout findMatchingPageForDragOver( 3458 DragView dragView, float originX, float originY, boolean exact) { 3459 // We loop through all the screens (ie CellLayouts) and see which ones overlap 3460 // with the item being dragged and then choose the one that's closest to the touch point 3461 final int screenCount = getChildCount(); 3462 CellLayout bestMatchingScreen = null; 3463 float smallestDistSoFar = Float.MAX_VALUE; 3464 3465 for (int i = 0; i < screenCount; i++) { 3466 // The custom content screen is not a valid drag over option 3467 if (mScreenOrder.get(i) == CUSTOM_CONTENT_SCREEN_ID) { 3468 continue; 3469 } 3470 3471 CellLayout cl = (CellLayout) getChildAt(i); 3472 3473 final float[] touchXy = {originX, originY}; 3474 // Transform the touch coordinates to the CellLayout's local coordinates 3475 // If the touch point is within the bounds of the cell layout, we can return immediately 3476 cl.getMatrix().invert(mTempInverseMatrix); 3477 mapPointFromSelfToChild(cl, touchXy, mTempInverseMatrix); 3478 3479 if (touchXy[0] >= 0 && touchXy[0] <= cl.getWidth() && 3480 touchXy[1] >= 0 && touchXy[1] <= cl.getHeight()) { 3481 return cl; 3482 } 3483 3484 if (!exact) { 3485 // Get the center of the cell layout in screen coordinates 3486 final float[] cellLayoutCenter = mTempCellLayoutCenterCoordinates; 3487 cellLayoutCenter[0] = cl.getWidth()/2; 3488 cellLayoutCenter[1] = cl.getHeight()/2; 3489 mapPointFromChildToSelf(cl, cellLayoutCenter); 3490 3491 touchXy[0] = originX; 3492 touchXy[1] = originY; 3493 3494 // Calculate the distance between the center of the CellLayout 3495 // and the touch point 3496 float dist = squaredDistance(touchXy, cellLayoutCenter); 3497 3498 if (dist < smallestDistSoFar) { 3499 smallestDistSoFar = dist; 3500 bestMatchingScreen = cl; 3501 } 3502 } 3503 } 3504 return bestMatchingScreen; 3505 } 3506 3507 // This is used to compute the visual center of the dragView. This point is then 3508 // used to visualize drop locations and determine where to drop an item. The idea is that 3509 // the visual center represents the user's interpretation of where the item is, and hence 3510 // is the appropriate point to use when determining drop location. 3511 private float[] getDragViewVisualCenter(int x, int y, int xOffset, int yOffset, 3512 DragView dragView, float[] recycle) { 3513 float res[]; 3514 if (recycle == null) { 3515 res = new float[2]; 3516 } else { 3517 res = recycle; 3518 } 3519 3520 // First off, the drag view has been shifted in a way that is not represented in the 3521 // x and y values or the x/yOffsets. Here we account for that shift. 3522 x += getResources().getDimensionPixelSize(R.dimen.dragViewOffsetX); 3523 y += getResources().getDimensionPixelSize(R.dimen.dragViewOffsetY); 3524 3525 // These represent the visual top and left of drag view if a dragRect was provided. 3526 // If a dragRect was not provided, then they correspond to the actual view left and 3527 // top, as the dragRect is in that case taken to be the entire dragView. 3528 // R.dimen.dragViewOffsetY. 3529 int left = x - xOffset; 3530 int top = y - yOffset; 3531 3532 // In order to find the visual center, we shift by half the dragRect 3533 res[0] = left + dragView.getDragRegion().width() / 2; 3534 res[1] = top + dragView.getDragRegion().height() / 2; 3535 3536 return res; 3537 } 3538 3539 private boolean isDragWidget(DragObject d) { 3540 return (d.dragInfo instanceof LauncherAppWidgetInfo || 3541 d.dragInfo instanceof PendingAddWidgetInfo); 3542 } 3543 private boolean isExternalDragWidget(DragObject d) { 3544 return d.dragSource != this && isDragWidget(d); 3545 } 3546 3547 public void onDragOver(DragObject d) { 3548 // Skip drag over events while we are dragging over side pages 3549 if (mInScrollArea || !transitionStateShouldAllowDrop()) return; 3550 3551 Rect r = new Rect(); 3552 CellLayout layout = null; 3553 ItemInfo item = (ItemInfo) d.dragInfo; 3554 if (item == null) { 3555 if (LauncherAppState.isDogfoodBuild()) { 3556 throw new NullPointerException("DragObject has null info"); 3557 } 3558 return; 3559 } 3560 3561 // Ensure that we have proper spans for the item that we are dropping 3562 if (item.spanX < 0 || item.spanY < 0) throw new RuntimeException("Improper spans found"); 3563 mDragViewVisualCenter = getDragViewVisualCenter(d.x, d.y, d.xOffset, d.yOffset, 3564 d.dragView, mDragViewVisualCenter); 3565 3566 final View child = (mDragInfo == null) ? null : mDragInfo.cell; 3567 // Identify whether we have dragged over a side page 3568 if (workspaceInModalState()) { 3569 if (mLauncher.getHotseat() != null && !isExternalDragWidget(d)) { 3570 if (isPointInSelfOverHotseat(d.x, d.y, r)) { 3571 layout = mLauncher.getHotseat().getLayout(); 3572 } 3573 } 3574 if (layout == null) { 3575 layout = findMatchingPageForDragOver(d.dragView, d.x, d.y, false); 3576 } 3577 if (layout != mDragTargetLayout) { 3578 setCurrentDropLayout(layout); 3579 setCurrentDragOverlappingLayout(layout); 3580 3581 boolean isInSpringLoadedMode = (mState == State.SPRING_LOADED); 3582 if (isInSpringLoadedMode) { 3583 if (mLauncher.isHotseatLayout(layout)) { 3584 mSpringLoadedDragController.cancel(); 3585 } else { 3586 mSpringLoadedDragController.setAlarm(mDragTargetLayout); 3587 } 3588 } 3589 } 3590 } else { 3591 // Test to see if we are over the hotseat otherwise just use the current page 3592 if (mLauncher.getHotseat() != null && !isDragWidget(d)) { 3593 if (isPointInSelfOverHotseat(d.x, d.y, r)) { 3594 layout = mLauncher.getHotseat().getLayout(); 3595 } 3596 } 3597 if (layout == null) { 3598 layout = getCurrentDropLayout(); 3599 } 3600 if (layout != mDragTargetLayout) { 3601 setCurrentDropLayout(layout); 3602 setCurrentDragOverlappingLayout(layout); 3603 } 3604 } 3605 3606 // Handle the drag over 3607 if (mDragTargetLayout != null) { 3608 // We want the point to be mapped to the dragTarget. 3609 if (mLauncher.isHotseatLayout(mDragTargetLayout)) { 3610 mapPointFromSelfToHotseatLayout(mLauncher.getHotseat(), mDragViewVisualCenter); 3611 } else { 3612 mapPointFromSelfToChild(mDragTargetLayout, mDragViewVisualCenter, null); 3613 } 3614 3615 ItemInfo info = (ItemInfo) d.dragInfo; 3616 3617 int minSpanX = item.spanX; 3618 int minSpanY = item.spanY; 3619 if (item.minSpanX > 0 && item.minSpanY > 0) { 3620 minSpanX = item.minSpanX; 3621 minSpanY = item.minSpanY; 3622 } 3623 3624 mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], 3625 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, 3626 mDragTargetLayout, mTargetCell); 3627 int reorderX = mTargetCell[0]; 3628 int reorderY = mTargetCell[1]; 3629 3630 setCurrentDropOverCell(mTargetCell[0], mTargetCell[1]); 3631 3632 float targetCellDistance = mDragTargetLayout.getDistanceFromCell( 3633 mDragViewVisualCenter[0], mDragViewVisualCenter[1], mTargetCell); 3634 3635 final View dragOverView = mDragTargetLayout.getChildAt(mTargetCell[0], 3636 mTargetCell[1]); 3637 3638 manageFolderFeedback(info, mDragTargetLayout, mTargetCell, 3639 targetCellDistance, dragOverView); 3640 3641 boolean nearestDropOccupied = mDragTargetLayout.isNearestDropLocationOccupied((int) 3642 mDragViewVisualCenter[0], (int) mDragViewVisualCenter[1], item.spanX, 3643 item.spanY, child, mTargetCell); 3644 3645 if (!nearestDropOccupied) { 3646 mDragTargetLayout.visualizeDropLocation(child, mDragOutline, 3647 (int) mDragViewVisualCenter[0], (int) mDragViewVisualCenter[1], 3648 mTargetCell[0], mTargetCell[1], item.spanX, item.spanY, false, 3649 d.dragView.getDragVisualizeOffset(), d.dragView.getDragRegion()); 3650 } else if ((mDragMode == DRAG_MODE_NONE || mDragMode == DRAG_MODE_REORDER) 3651 && !mReorderAlarm.alarmPending() && (mLastReorderX != reorderX || 3652 mLastReorderY != reorderY)) { 3653 3654 int[] resultSpan = new int[2]; 3655 mDragTargetLayout.performReorder((int) mDragViewVisualCenter[0], 3656 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, item.spanX, item.spanY, 3657 child, mTargetCell, resultSpan, CellLayout.MODE_SHOW_REORDER_HINT); 3658 3659 // Otherwise, if we aren't adding to or creating a folder and there's no pending 3660 // reorder, then we schedule a reorder 3661 ReorderAlarmListener listener = new ReorderAlarmListener(mDragViewVisualCenter, 3662 minSpanX, minSpanY, item.spanX, item.spanY, d.dragView, child); 3663 mReorderAlarm.setOnAlarmListener(listener); 3664 mReorderAlarm.setAlarm(REORDER_TIMEOUT); 3665 } 3666 3667 if (mDragMode == DRAG_MODE_CREATE_FOLDER || mDragMode == DRAG_MODE_ADD_TO_FOLDER || 3668 !nearestDropOccupied) { 3669 if (mDragTargetLayout != null) { 3670 mDragTargetLayout.revertTempState(); 3671 } 3672 } 3673 } 3674 } 3675 3676 private void manageFolderFeedback(ItemInfo info, CellLayout targetLayout, 3677 int[] targetCell, float distance, View dragOverView) { 3678 boolean userFolderPending = willCreateUserFolder(info, targetLayout, targetCell, distance, 3679 false); 3680 3681 if (mDragMode == DRAG_MODE_NONE && userFolderPending && 3682 !mFolderCreationAlarm.alarmPending()) { 3683 mFolderCreationAlarm.setOnAlarmListener(new 3684 FolderCreationAlarmListener(targetLayout, targetCell[0], targetCell[1])); 3685 mFolderCreationAlarm.setAlarm(FOLDER_CREATION_TIMEOUT); 3686 return; 3687 } 3688 3689 boolean willAddToFolder = 3690 willAddToExistingUserFolder(info, targetLayout, targetCell, distance); 3691 3692 if (willAddToFolder && mDragMode == DRAG_MODE_NONE) { 3693 mDragOverFolderIcon = ((FolderIcon) dragOverView); 3694 mDragOverFolderIcon.onDragEnter(info); 3695 if (targetLayout != null) { 3696 targetLayout.clearDragOutlines(); 3697 } 3698 setDragMode(DRAG_MODE_ADD_TO_FOLDER); 3699 return; 3700 } 3701 3702 if (mDragMode == DRAG_MODE_ADD_TO_FOLDER && !willAddToFolder) { 3703 setDragMode(DRAG_MODE_NONE); 3704 } 3705 if (mDragMode == DRAG_MODE_CREATE_FOLDER && !userFolderPending) { 3706 setDragMode(DRAG_MODE_NONE); 3707 } 3708 3709 return; 3710 } 3711 3712 class FolderCreationAlarmListener implements OnAlarmListener { 3713 CellLayout layout; 3714 int cellX; 3715 int cellY; 3716 3717 public FolderCreationAlarmListener(CellLayout layout, int cellX, int cellY) { 3718 this.layout = layout; 3719 this.cellX = cellX; 3720 this.cellY = cellY; 3721 } 3722 3723 public void onAlarm(Alarm alarm) { 3724 if (mDragFolderRingAnimator != null) { 3725 // This shouldn't happen ever, but just in case, make sure we clean up the mess. 3726 mDragFolderRingAnimator.animateToNaturalState(); 3727 } 3728 mDragFolderRingAnimator = new FolderRingAnimator(mLauncher, null); 3729 mDragFolderRingAnimator.setCell(cellX, cellY); 3730 mDragFolderRingAnimator.setCellLayout(layout); 3731 mDragFolderRingAnimator.animateToAcceptState(); 3732 layout.showFolderAccept(mDragFolderRingAnimator); 3733 layout.clearDragOutlines(); 3734 setDragMode(DRAG_MODE_CREATE_FOLDER); 3735 } 3736 } 3737 3738 class ReorderAlarmListener implements OnAlarmListener { 3739 float[] dragViewCenter; 3740 int minSpanX, minSpanY, spanX, spanY; 3741 DragView dragView; 3742 View child; 3743 3744 public ReorderAlarmListener(float[] dragViewCenter, int minSpanX, int minSpanY, int spanX, 3745 int spanY, DragView dragView, View child) { 3746 this.dragViewCenter = dragViewCenter; 3747 this.minSpanX = minSpanX; 3748 this.minSpanY = minSpanY; 3749 this.spanX = spanX; 3750 this.spanY = spanY; 3751 this.child = child; 3752 this.dragView = dragView; 3753 } 3754 3755 public void onAlarm(Alarm alarm) { 3756 int[] resultSpan = new int[2]; 3757 mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], 3758 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, mDragTargetLayout, 3759 mTargetCell); 3760 mLastReorderX = mTargetCell[0]; 3761 mLastReorderY = mTargetCell[1]; 3762 3763 mTargetCell = mDragTargetLayout.performReorder((int) mDragViewVisualCenter[0], 3764 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, spanX, spanY, 3765 child, mTargetCell, resultSpan, CellLayout.MODE_DRAG_OVER); 3766 3767 if (mTargetCell[0] < 0 || mTargetCell[1] < 0) { 3768 mDragTargetLayout.revertTempState(); 3769 } else { 3770 setDragMode(DRAG_MODE_REORDER); 3771 } 3772 3773 boolean resize = resultSpan[0] != spanX || resultSpan[1] != spanY; 3774 mDragTargetLayout.visualizeDropLocation(child, mDragOutline, 3775 (int) mDragViewVisualCenter[0], (int) mDragViewVisualCenter[1], 3776 mTargetCell[0], mTargetCell[1], resultSpan[0], resultSpan[1], resize, 3777 dragView.getDragVisualizeOffset(), dragView.getDragRegion()); 3778 } 3779 } 3780 3781 @Override 3782 public void getHitRectRelativeToDragLayer(Rect outRect) { 3783 // We want the workspace to have the whole area of the display (it will find the correct 3784 // cell layout to drop to in the existing drag/drop logic. 3785 mLauncher.getDragLayer().getDescendantRectRelativeToSelf(this, outRect); 3786 } 3787 3788 /** 3789 * Add the item specified by dragInfo to the given layout. 3790 * @return true if successful 3791 */ 3792 public boolean addExternalItemToScreen(ItemInfo dragInfo, CellLayout layout) { 3793 if (layout.findCellForSpan(mTempEstimate, dragInfo.spanX, dragInfo.spanY)) { 3794 onDropExternal(dragInfo.dropPos, (ItemInfo) dragInfo, (CellLayout) layout, false); 3795 return true; 3796 } 3797 mLauncher.showOutOfSpaceMessage(mLauncher.isHotseatLayout(layout)); 3798 return false; 3799 } 3800 3801 private void onDropExternal(int[] touchXY, Object dragInfo, 3802 CellLayout cellLayout, boolean insertAtFirst) { 3803 onDropExternal(touchXY, dragInfo, cellLayout, insertAtFirst, null); 3804 } 3805 3806 /** 3807 * Drop an item that didn't originate on one of the workspace screens. 3808 * It may have come from Launcher (e.g. from all apps or customize), or it may have 3809 * come from another app altogether. 3810 * 3811 * NOTE: This can also be called when we are outside of a drag event, when we want 3812 * to add an item to one of the workspace screens. 3813 */ 3814 private void onDropExternal(final int[] touchXY, final Object dragInfo, 3815 final CellLayout cellLayout, boolean insertAtFirst, DragObject d) { 3816 final Runnable exitSpringLoadedRunnable = new Runnable() { 3817 @Override 3818 public void run() { 3819 mLauncher.exitSpringLoadedDragModeDelayed(true, 3820 Launcher.EXIT_SPRINGLOADED_MODE_SHORT_TIMEOUT, null); 3821 } 3822 }; 3823 3824 ItemInfo info = (ItemInfo) dragInfo; 3825 int spanX = info.spanX; 3826 int spanY = info.spanY; 3827 if (mDragInfo != null) { 3828 spanX = mDragInfo.spanX; 3829 spanY = mDragInfo.spanY; 3830 } 3831 3832 final long container = mLauncher.isHotseatLayout(cellLayout) ? 3833 LauncherSettings.Favorites.CONTAINER_HOTSEAT : 3834 LauncherSettings.Favorites.CONTAINER_DESKTOP; 3835 final long screenId = getIdForScreen(cellLayout); 3836 if (!mLauncher.isHotseatLayout(cellLayout) 3837 && screenId != getScreenIdForPageIndex(mCurrentPage) 3838 && mState != State.SPRING_LOADED) { 3839 snapToScreenId(screenId, null); 3840 } 3841 3842 if (info instanceof PendingAddItemInfo) { 3843 final PendingAddItemInfo pendingInfo = (PendingAddItemInfo) dragInfo; 3844 3845 boolean findNearestVacantCell = true; 3846 if (pendingInfo.itemType == LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT) { 3847 mTargetCell = findNearestArea((int) touchXY[0], (int) touchXY[1], spanX, spanY, 3848 cellLayout, mTargetCell); 3849 float distance = cellLayout.getDistanceFromCell(mDragViewVisualCenter[0], 3850 mDragViewVisualCenter[1], mTargetCell); 3851 if (willCreateUserFolder((ItemInfo) d.dragInfo, cellLayout, mTargetCell, 3852 distance, true) || willAddToExistingUserFolder((ItemInfo) d.dragInfo, 3853 cellLayout, mTargetCell, distance)) { 3854 findNearestVacantCell = false; 3855 } 3856 } 3857 3858 final ItemInfo item = (ItemInfo) d.dragInfo; 3859 boolean updateWidgetSize = false; 3860 if (findNearestVacantCell) { 3861 int minSpanX = item.spanX; 3862 int minSpanY = item.spanY; 3863 if (item.minSpanX > 0 && item.minSpanY > 0) { 3864 minSpanX = item.minSpanX; 3865 minSpanY = item.minSpanY; 3866 } 3867 int[] resultSpan = new int[2]; 3868 mTargetCell = cellLayout.performReorder((int) mDragViewVisualCenter[0], 3869 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, info.spanX, info.spanY, 3870 null, mTargetCell, resultSpan, CellLayout.MODE_ON_DROP_EXTERNAL); 3871 3872 if (resultSpan[0] != item.spanX || resultSpan[1] != item.spanY) { 3873 updateWidgetSize = true; 3874 } 3875 item.spanX = resultSpan[0]; 3876 item.spanY = resultSpan[1]; 3877 } 3878 3879 Runnable onAnimationCompleteRunnable = new Runnable() { 3880 @Override 3881 public void run() { 3882 // Normally removeExtraEmptyScreen is called in Workspace#onDragEnd, but when 3883 // adding an item that may not be dropped right away (due to a config activity) 3884 // we defer the removal until the activity returns. 3885 deferRemoveExtraEmptyScreen(); 3886 3887 // When dragging and dropping from customization tray, we deal with creating 3888 // widgets/shortcuts/folders in a slightly different way 3889 switch (pendingInfo.itemType) { 3890 case LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET: 3891 int span[] = new int[2]; 3892 span[0] = item.spanX; 3893 span[1] = item.spanY; 3894 mLauncher.addAppWidgetFromDrop((PendingAddWidgetInfo) pendingInfo, 3895 container, screenId, mTargetCell, span, null); 3896 break; 3897 case LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT: 3898 mLauncher.processShortcutFromDrop(pendingInfo.componentName, 3899 container, screenId, mTargetCell, null); 3900 break; 3901 default: 3902 throw new IllegalStateException("Unknown item type: " + 3903 pendingInfo.itemType); 3904 } 3905 } 3906 }; 3907 View finalView = pendingInfo.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET 3908 ? ((PendingAddWidgetInfo) pendingInfo).boundWidget : null; 3909 3910 if (finalView instanceof AppWidgetHostView && updateWidgetSize) { 3911 AppWidgetHostView awhv = (AppWidgetHostView) finalView; 3912 AppWidgetResizeFrame.updateWidgetSizeRanges(awhv, mLauncher, item.spanX, 3913 item.spanY); 3914 } 3915 3916 int animationStyle = ANIMATE_INTO_POSITION_AND_DISAPPEAR; 3917 if (pendingInfo.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET && 3918 ((PendingAddWidgetInfo) pendingInfo).info.configure != null) { 3919 animationStyle = ANIMATE_INTO_POSITION_AND_REMAIN; 3920 } 3921 animateWidgetDrop(info, cellLayout, d.dragView, onAnimationCompleteRunnable, 3922 animationStyle, finalView, true); 3923 } else { 3924 // This is for other drag/drop cases, like dragging from All Apps 3925 View view = null; 3926 3927 switch (info.itemType) { 3928 case LauncherSettings.Favorites.ITEM_TYPE_APPLICATION: 3929 case LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT: 3930 if (info.container == NO_ID && info instanceof AppInfo) { 3931 // Came from all apps -- make a copy 3932 info = new ShortcutInfo((AppInfo) info); 3933 } 3934 view = mLauncher.createShortcut(R.layout.application, cellLayout, 3935 (ShortcutInfo) info); 3936 break; 3937 case LauncherSettings.Favorites.ITEM_TYPE_FOLDER: 3938 view = FolderIcon.fromXml(R.layout.folder_icon, mLauncher, cellLayout, 3939 (FolderInfo) info, mIconCache); 3940 break; 3941 default: 3942 throw new IllegalStateException("Unknown item type: " + info.itemType); 3943 } 3944 3945 // First we find the cell nearest to point at which the item is 3946 // dropped, without any consideration to whether there is an item there. 3947 if (touchXY != null) { 3948 mTargetCell = findNearestArea((int) touchXY[0], (int) touchXY[1], spanX, spanY, 3949 cellLayout, mTargetCell); 3950 float distance = cellLayout.getDistanceFromCell(mDragViewVisualCenter[0], 3951 mDragViewVisualCenter[1], mTargetCell); 3952 d.postAnimationRunnable = exitSpringLoadedRunnable; 3953 if (createUserFolderIfNecessary(view, container, cellLayout, mTargetCell, distance, 3954 true, d.dragView, d.postAnimationRunnable)) { 3955 return; 3956 } 3957 if (addToExistingFolderIfNecessary(view, cellLayout, mTargetCell, distance, d, 3958 true)) { 3959 return; 3960 } 3961 } 3962 3963 if (touchXY != null) { 3964 // when dragging and dropping, just find the closest free spot 3965 mTargetCell = cellLayout.performReorder((int) mDragViewVisualCenter[0], 3966 (int) mDragViewVisualCenter[1], 1, 1, 1, 1, 3967 null, mTargetCell, null, CellLayout.MODE_ON_DROP_EXTERNAL); 3968 } else { 3969 cellLayout.findCellForSpan(mTargetCell, 1, 1); 3970 } 3971 // Add the item to DB before adding to screen ensures that the container and other 3972 // values of the info is properly updated. 3973 LauncherModel.addOrMoveItemInDatabase(mLauncher, info, container, screenId, 3974 mTargetCell[0], mTargetCell[1]); 3975 3976 addInScreen(view, container, screenId, mTargetCell[0], mTargetCell[1], info.spanX, 3977 info.spanY, insertAtFirst); 3978 cellLayout.onDropChild(view); 3979 cellLayout.getShortcutsAndWidgets().measureChild(view); 3980 3981 if (d.dragView != null) { 3982 // We wrap the animation call in the temporary set and reset of the current 3983 // cellLayout to its final transform -- this means we animate the drag view to 3984 // the correct final location. 3985 setFinalTransitionTransform(cellLayout); 3986 mLauncher.getDragLayer().animateViewIntoPosition(d.dragView, view, 3987 exitSpringLoadedRunnable, this); 3988 resetTransitionTransform(cellLayout); 3989 } 3990 } 3991 } 3992 3993 public Bitmap createWidgetBitmap(ItemInfo widgetInfo, View layout) { 3994 int[] unScaledSize = mLauncher.getWorkspace().estimateItemSize(widgetInfo.spanX, 3995 widgetInfo.spanY, widgetInfo, false); 3996 int visibility = layout.getVisibility(); 3997 layout.setVisibility(VISIBLE); 3998 3999 int width = MeasureSpec.makeMeasureSpec(unScaledSize[0], MeasureSpec.EXACTLY); 4000 int height = MeasureSpec.makeMeasureSpec(unScaledSize[1], MeasureSpec.EXACTLY); 4001 Bitmap b = Bitmap.createBitmap(unScaledSize[0], unScaledSize[1], 4002 Bitmap.Config.ARGB_8888); 4003 mCanvas.setBitmap(b); 4004 4005 layout.measure(width, height); 4006 layout.layout(0, 0, unScaledSize[0], unScaledSize[1]); 4007 layout.draw(mCanvas); 4008 mCanvas.setBitmap(null); 4009 layout.setVisibility(visibility); 4010 return b; 4011 } 4012 4013 private void getFinalPositionForDropAnimation(int[] loc, float[] scaleXY, 4014 DragView dragView, CellLayout layout, ItemInfo info, int[] targetCell, 4015 boolean external, boolean scale) { 4016 // Now we animate the dragView, (ie. the widget or shortcut preview) into its final 4017 // location and size on the home screen. 4018 int spanX = info.spanX; 4019 int spanY = info.spanY; 4020 4021 Rect r = estimateItemPosition(layout, info, targetCell[0], targetCell[1], spanX, spanY); 4022 loc[0] = r.left; 4023 loc[1] = r.top; 4024 4025 setFinalTransitionTransform(layout); 4026 float cellLayoutScale = 4027 mLauncher.getDragLayer().getDescendantCoordRelativeToSelf(layout, loc, true); 4028 resetTransitionTransform(layout); 4029 4030 float dragViewScaleX; 4031 float dragViewScaleY; 4032 if (scale) { 4033 dragViewScaleX = (1.0f * r.width()) / dragView.getMeasuredWidth(); 4034 dragViewScaleY = (1.0f * r.height()) / dragView.getMeasuredHeight(); 4035 } else { 4036 dragViewScaleX = 1f; 4037 dragViewScaleY = 1f; 4038 } 4039 4040 // The animation will scale the dragView about its center, so we need to center about 4041 // the final location. 4042 loc[0] -= (dragView.getMeasuredWidth() - cellLayoutScale * r.width()) / 2; 4043 loc[1] -= (dragView.getMeasuredHeight() - cellLayoutScale * r.height()) / 2; 4044 4045 scaleXY[0] = dragViewScaleX * cellLayoutScale; 4046 scaleXY[1] = dragViewScaleY * cellLayoutScale; 4047 } 4048 4049 public void animateWidgetDrop(ItemInfo info, CellLayout cellLayout, DragView dragView, 4050 final Runnable onCompleteRunnable, int animationType, final View finalView, 4051 boolean external) { 4052 Rect from = new Rect(); 4053 mLauncher.getDragLayer().getViewRectRelativeToSelf(dragView, from); 4054 4055 int[] finalPos = new int[2]; 4056 float scaleXY[] = new float[2]; 4057 boolean scalePreview = !(info instanceof PendingAddShortcutInfo); 4058 getFinalPositionForDropAnimation(finalPos, scaleXY, dragView, cellLayout, info, mTargetCell, 4059 external, scalePreview); 4060 4061 Resources res = mLauncher.getResources(); 4062 final int duration = res.getInteger(R.integer.config_dropAnimMaxDuration) - 200; 4063 4064 // In the case where we've prebound the widget, we remove it from the DragLayer 4065 if (finalView instanceof AppWidgetHostView && external) { 4066 Log.d(TAG, "6557954 Animate widget drop, final view is appWidgetHostView"); 4067 mLauncher.getDragLayer().removeView(finalView); 4068 } 4069 if ((animationType == ANIMATE_INTO_POSITION_AND_RESIZE || external) && finalView != null) { 4070 Bitmap crossFadeBitmap = createWidgetBitmap(info, finalView); 4071 dragView.setCrossFadeBitmap(crossFadeBitmap); 4072 dragView.crossFade((int) (duration * 0.8f)); 4073 } else if (info.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET && external) { 4074 scaleXY[0] = scaleXY[1] = Math.min(scaleXY[0], scaleXY[1]); 4075 } 4076 4077 DragLayer dragLayer = mLauncher.getDragLayer(); 4078 if (animationType == CANCEL_TWO_STAGE_WIDGET_DROP_ANIMATION) { 4079 mLauncher.getDragLayer().animateViewIntoPosition(dragView, finalPos, 0f, 0.1f, 0.1f, 4080 DragLayer.ANIMATION_END_DISAPPEAR, onCompleteRunnable, duration); 4081 } else { 4082 int endStyle; 4083 if (animationType == ANIMATE_INTO_POSITION_AND_REMAIN) { 4084 endStyle = DragLayer.ANIMATION_END_REMAIN_VISIBLE; 4085 } else { 4086 endStyle = DragLayer.ANIMATION_END_DISAPPEAR;; 4087 } 4088 4089 Runnable onComplete = new Runnable() { 4090 @Override 4091 public void run() { 4092 if (finalView != null) { 4093 finalView.setVisibility(VISIBLE); 4094 } 4095 if (onCompleteRunnable != null) { 4096 onCompleteRunnable.run(); 4097 } 4098 } 4099 }; 4100 dragLayer.animateViewIntoPosition(dragView, from.left, from.top, finalPos[0], 4101 finalPos[1], 1, 1, 1, scaleXY[0], scaleXY[1], onComplete, endStyle, 4102 duration, this); 4103 } 4104 } 4105 4106 public void setFinalTransitionTransform(CellLayout layout) { 4107 if (isSwitchingState()) { 4108 mCurrentScale = getScaleX(); 4109 setScaleX(mNewScale); 4110 setScaleY(mNewScale); 4111 } 4112 } 4113 public void resetTransitionTransform(CellLayout layout) { 4114 if (isSwitchingState()) { 4115 setScaleX(mCurrentScale); 4116 setScaleY(mCurrentScale); 4117 } 4118 } 4119 4120 /** 4121 * Return the current {@link CellLayout}, correctly picking the destination 4122 * screen while a scroll is in progress. 4123 */ 4124 public CellLayout getCurrentDropLayout() { 4125 return (CellLayout) getChildAt(getNextPage()); 4126 } 4127 4128 /** 4129 * Return the current CellInfo describing our current drag; this method exists 4130 * so that Launcher can sync this object with the correct info when the activity is created/ 4131 * destroyed 4132 * 4133 */ 4134 public CellLayout.CellInfo getDragInfo() { 4135 return mDragInfo; 4136 } 4137 4138 public int getCurrentPageOffsetFromCustomContent() { 4139 return getNextPage() - numCustomPages(); 4140 } 4141 4142 /** 4143 * Calculate the nearest cell where the given object would be dropped. 4144 * 4145 * pixelX and pixelY should be in the coordinate system of layout 4146 */ 4147 private int[] findNearestArea(int pixelX, int pixelY, 4148 int spanX, int spanY, CellLayout layout, int[] recycle) { 4149 return layout.findNearestArea( 4150 pixelX, pixelY, spanX, spanY, recycle); 4151 } 4152 4153 void setup(DragController dragController) { 4154 mSpringLoadedDragController = new SpringLoadedDragController(mLauncher); 4155 mDragController = dragController; 4156 4157 // hardware layers on children are enabled on startup, but should be disabled until 4158 // needed 4159 updateChildrenLayersEnabled(false); 4160 } 4161 4162 /** 4163 * Called at the end of a drag which originated on the workspace. 4164 */ 4165 public void onDropCompleted(final View target, final DragObject d, 4166 final boolean isFlingToDelete, final boolean success) { 4167 if (mDeferDropAfterUninstall) { 4168 mDeferredAction = new Runnable() { 4169 public void run() { 4170 onDropCompleted(target, d, isFlingToDelete, success); 4171 mDeferredAction = null; 4172 } 4173 }; 4174 return; 4175 } 4176 4177 boolean beingCalledAfterUninstall = mDeferredAction != null; 4178 4179 if (success && !(beingCalledAfterUninstall && !mUninstallSuccessful)) { 4180 if (target != this && mDragInfo != null) { 4181 CellLayout parentCell = getParentCellLayoutForView(mDragInfo.cell); 4182 if (parentCell != null) { 4183 parentCell.removeView(mDragInfo.cell); 4184 } else if (LauncherAppState.isDogfoodBuild()) { 4185 throw new NullPointerException("mDragInfo.cell has null parent"); 4186 } 4187 if (mDragInfo.cell instanceof DropTarget) { 4188 mDragController.removeDropTarget((DropTarget) mDragInfo.cell); 4189 } 4190 } 4191 } else if (mDragInfo != null) { 4192 CellLayout cellLayout; 4193 if (mLauncher.isHotseatLayout(target)) { 4194 cellLayout = mLauncher.getHotseat().getLayout(); 4195 } else { 4196 cellLayout = getScreenWithId(mDragInfo.screenId); 4197 } 4198 if (cellLayout == null && LauncherAppState.isDogfoodBuild()) { 4199 throw new RuntimeException("Invalid state: cellLayout == null in " 4200 + "Workspace#onDropCompleted. Please file a bug. "); 4201 } 4202 if (cellLayout != null) { 4203 cellLayout.onDropChild(mDragInfo.cell); 4204 } 4205 } 4206 if ((d.cancelled || (beingCalledAfterUninstall && !mUninstallSuccessful)) 4207 && mDragInfo.cell != null) { 4208 mDragInfo.cell.setVisibility(VISIBLE); 4209 } 4210 mDragOutline = null; 4211 mDragInfo = null; 4212 } 4213 4214 public void deferCompleteDropAfterUninstallActivity() { 4215 mDeferDropAfterUninstall = true; 4216 } 4217 4218 /// maybe move this into a smaller part 4219 public void onUninstallActivityReturned(boolean success) { 4220 mDeferDropAfterUninstall = false; 4221 mUninstallSuccessful = success; 4222 if (mDeferredAction != null) { 4223 mDeferredAction.run(); 4224 } 4225 } 4226 4227 void updateItemLocationsInDatabase(CellLayout cl) { 4228 int count = cl.getShortcutsAndWidgets().getChildCount(); 4229 4230 long screenId = getIdForScreen(cl); 4231 int container = Favorites.CONTAINER_DESKTOP; 4232 4233 if (mLauncher.isHotseatLayout(cl)) { 4234 screenId = -1; 4235 container = Favorites.CONTAINER_HOTSEAT; 4236 } 4237 4238 for (int i = 0; i < count; i++) { 4239 View v = cl.getShortcutsAndWidgets().getChildAt(i); 4240 ItemInfo info = (ItemInfo) v.getTag(); 4241 // Null check required as the AllApps button doesn't have an item info 4242 if (info != null && info.requiresDbUpdate) { 4243 info.requiresDbUpdate = false; 4244 LauncherModel.modifyItemInDatabase(mLauncher, info, container, screenId, info.cellX, 4245 info.cellY, info.spanX, info.spanY); 4246 } 4247 } 4248 } 4249 4250 ArrayList<ComponentName> getUniqueComponents(boolean stripDuplicates, ArrayList<ComponentName> duplicates) { 4251 ArrayList<ComponentName> uniqueIntents = new ArrayList<ComponentName>(); 4252 getUniqueIntents((CellLayout) mLauncher.getHotseat().getLayout(), uniqueIntents, duplicates, false); 4253 int count = getChildCount(); 4254 for (int i = 0; i < count; i++) { 4255 CellLayout cl = (CellLayout) getChildAt(i); 4256 getUniqueIntents(cl, uniqueIntents, duplicates, false); 4257 } 4258 return uniqueIntents; 4259 } 4260 4261 void getUniqueIntents(CellLayout cl, ArrayList<ComponentName> uniqueIntents, 4262 ArrayList<ComponentName> duplicates, boolean stripDuplicates) { 4263 int count = cl.getShortcutsAndWidgets().getChildCount(); 4264 4265 ArrayList<View> children = new ArrayList<View>(); 4266 for (int i = 0; i < count; i++) { 4267 View v = cl.getShortcutsAndWidgets().getChildAt(i); 4268 children.add(v); 4269 } 4270 4271 for (int i = 0; i < count; i++) { 4272 View v = children.get(i); 4273 ItemInfo info = (ItemInfo) v.getTag(); 4274 // Null check required as the AllApps button doesn't have an item info 4275 if (info instanceof ShortcutInfo) { 4276 ShortcutInfo si = (ShortcutInfo) info; 4277 ComponentName cn = si.intent.getComponent(); 4278 4279 Uri dataUri = si.intent.getData(); 4280 // If dataUri is not null / empty or if this component isn't one that would 4281 // have previously showed up in the AllApps list, then this is a widget-type 4282 // shortcut, so ignore it. 4283 if (dataUri != null && !dataUri.equals(Uri.EMPTY)) { 4284 continue; 4285 } 4286 4287 if (!uniqueIntents.contains(cn)) { 4288 uniqueIntents.add(cn); 4289 } else { 4290 if (stripDuplicates) { 4291 cl.removeViewInLayout(v); 4292 LauncherModel.deleteItemFromDatabase(mLauncher, si); 4293 } 4294 if (duplicates != null) { 4295 duplicates.add(cn); 4296 } 4297 } 4298 } 4299 if (v instanceof FolderIcon) { 4300 FolderIcon fi = (FolderIcon) v; 4301 ArrayList<View> items = fi.getFolder().getItemsInReadingOrder(); 4302 for (int j = 0; j < items.size(); j++) { 4303 if (items.get(j).getTag() instanceof ShortcutInfo) { 4304 ShortcutInfo si = (ShortcutInfo) items.get(j).getTag(); 4305 ComponentName cn = si.intent.getComponent(); 4306 4307 Uri dataUri = si.intent.getData(); 4308 // If dataUri is not null / empty or if this component isn't one that would 4309 // have previously showed up in the AllApps list, then this is a widget-type 4310 // shortcut, so ignore it. 4311 if (dataUri != null && !dataUri.equals(Uri.EMPTY)) { 4312 continue; 4313 } 4314 4315 if (!uniqueIntents.contains(cn)) { 4316 uniqueIntents.add(cn); 4317 } else { 4318 if (stripDuplicates) { 4319 fi.getFolderInfo().remove(si); 4320 LauncherModel.deleteItemFromDatabase(mLauncher, si); 4321 } 4322 if (duplicates != null) { 4323 duplicates.add(cn); 4324 } 4325 } 4326 } 4327 } 4328 } 4329 } 4330 } 4331 4332 void saveWorkspaceToDb() { 4333 saveWorkspaceScreenToDb((CellLayout) mLauncher.getHotseat().getLayout()); 4334 int count = getChildCount(); 4335 for (int i = 0; i < count; i++) { 4336 CellLayout cl = (CellLayout) getChildAt(i); 4337 saveWorkspaceScreenToDb(cl); 4338 } 4339 } 4340 4341 void saveWorkspaceScreenToDb(CellLayout cl) { 4342 int count = cl.getShortcutsAndWidgets().getChildCount(); 4343 4344 long screenId = getIdForScreen(cl); 4345 int container = Favorites.CONTAINER_DESKTOP; 4346 4347 Hotseat hotseat = mLauncher.getHotseat(); 4348 if (mLauncher.isHotseatLayout(cl)) { 4349 screenId = -1; 4350 container = Favorites.CONTAINER_HOTSEAT; 4351 } 4352 4353 for (int i = 0; i < count; i++) { 4354 View v = cl.getShortcutsAndWidgets().getChildAt(i); 4355 ItemInfo info = (ItemInfo) v.getTag(); 4356 // Null check required as the AllApps button doesn't have an item info 4357 if (info != null) { 4358 int cellX = info.cellX; 4359 int cellY = info.cellY; 4360 if (container == Favorites.CONTAINER_HOTSEAT) { 4361 cellX = hotseat.getCellXFromOrder((int) info.screenId); 4362 cellY = hotseat.getCellYFromOrder((int) info.screenId); 4363 } 4364 LauncherModel.addItemToDatabase(mLauncher, info, container, screenId, cellX, 4365 cellY, false); 4366 } 4367 if (v instanceof FolderIcon) { 4368 FolderIcon fi = (FolderIcon) v; 4369 fi.getFolder().addItemLocationsInDatabase(); 4370 } 4371 } 4372 } 4373 4374 @Override 4375 public float getIntrinsicIconScaleFactor() { 4376 return 1f; 4377 } 4378 4379 @Override 4380 public boolean supportsFlingToDelete() { 4381 return true; 4382 } 4383 4384 @Override 4385 public boolean supportsAppInfoDropTarget() { 4386 return false; 4387 } 4388 4389 @Override 4390 public boolean supportsDeleteDropTarget() { 4391 return true; 4392 } 4393 4394 @Override 4395 public void onFlingToDelete(DragObject d, int x, int y, PointF vec) { 4396 // Do nothing 4397 } 4398 4399 @Override 4400 public void onFlingToDeleteCompleted() { 4401 // Do nothing 4402 } 4403 4404 public boolean isDropEnabled() { 4405 return true; 4406 } 4407 4408 @Override 4409 protected void onRestoreInstanceState(Parcelable state) { 4410 super.onRestoreInstanceState(state); 4411 Launcher.setScreen(mCurrentPage); 4412 } 4413 4414 @Override 4415 protected void dispatchRestoreInstanceState(SparseArray<Parcelable> container) { 4416 // We don't dispatch restoreInstanceState to our children using this code path. 4417 // Some pages will be restored immediately as their items are bound immediately, and 4418 // others we will need to wait until after their items are bound. 4419 mSavedStates = container; 4420 } 4421 4422 public void restoreInstanceStateForChild(int child) { 4423 if (mSavedStates != null) { 4424 mRestoredPages.add(child); 4425 CellLayout cl = (CellLayout) getChildAt(child); 4426 if (cl != null) { 4427 cl.restoreInstanceState(mSavedStates); 4428 } 4429 } 4430 } 4431 4432 public void restoreInstanceStateForRemainingPages() { 4433 int count = getChildCount(); 4434 for (int i = 0; i < count; i++) { 4435 if (!mRestoredPages.contains(i)) { 4436 restoreInstanceStateForChild(i); 4437 } 4438 } 4439 mRestoredPages.clear(); 4440 mSavedStates = null; 4441 } 4442 4443 @Override 4444 public void scrollLeft() { 4445 if (!workspaceInModalState() && !mIsSwitchingState) { 4446 super.scrollLeft(); 4447 } 4448 Folder openFolder = getOpenFolder(); 4449 if (openFolder != null) { 4450 openFolder.completeDragExit(); 4451 } 4452 } 4453 4454 @Override 4455 public void scrollRight() { 4456 if (!workspaceInModalState() && !mIsSwitchingState) { 4457 super.scrollRight(); 4458 } 4459 Folder openFolder = getOpenFolder(); 4460 if (openFolder != null) { 4461 openFolder.completeDragExit(); 4462 } 4463 } 4464 4465 @Override 4466 public boolean onEnterScrollArea(int x, int y, int direction) { 4467 // Ignore the scroll area if we are dragging over the hot seat 4468 boolean isPortrait = !LauncherAppState.isScreenLandscape(getContext()); 4469 if (mLauncher.getHotseat() != null && isPortrait) { 4470 Rect r = new Rect(); 4471 mLauncher.getHotseat().getHitRect(r); 4472 if (r.contains(x, y)) { 4473 return false; 4474 } 4475 } 4476 4477 boolean result = false; 4478 if (!workspaceInModalState() && !mIsSwitchingState && getOpenFolder() == null) { 4479 mInScrollArea = true; 4480 4481 final int page = getNextPage() + 4482 (direction == DragController.SCROLL_LEFT ? -1 : 1); 4483 // We always want to exit the current layout to ensure parity of enter / exit 4484 setCurrentDropLayout(null); 4485 4486 if (0 <= page && page < getChildCount()) { 4487 // Ensure that we are not dragging over to the custom content screen 4488 if (getScreenIdForPageIndex(page) == CUSTOM_CONTENT_SCREEN_ID) { 4489 return false; 4490 } 4491 4492 CellLayout layout = (CellLayout) getChildAt(page); 4493 setCurrentDragOverlappingLayout(layout); 4494 4495 // Workspace is responsible for drawing the edge glow on adjacent pages, 4496 // so we need to redraw the workspace when this may have changed. 4497 invalidate(); 4498 result = true; 4499 } 4500 } 4501 return result; 4502 } 4503 4504 @Override 4505 public boolean onExitScrollArea() { 4506 boolean result = false; 4507 if (mInScrollArea) { 4508 invalidate(); 4509 CellLayout layout = getCurrentDropLayout(); 4510 setCurrentDropLayout(layout); 4511 setCurrentDragOverlappingLayout(layout); 4512 4513 result = true; 4514 mInScrollArea = false; 4515 } 4516 return result; 4517 } 4518 4519 private void onResetScrollArea() { 4520 setCurrentDragOverlappingLayout(null); 4521 mInScrollArea = false; 4522 } 4523 4524 /** 4525 * Returns a specific CellLayout 4526 */ 4527 CellLayout getParentCellLayoutForView(View v) { 4528 ArrayList<CellLayout> layouts = getWorkspaceAndHotseatCellLayouts(); 4529 for (CellLayout layout : layouts) { 4530 if (layout.getShortcutsAndWidgets().indexOfChild(v) > -1) { 4531 return layout; 4532 } 4533 } 4534 return null; 4535 } 4536 4537 /** 4538 * Returns a list of all the CellLayouts in the workspace. 4539 */ 4540 ArrayList<CellLayout> getWorkspaceAndHotseatCellLayouts() { 4541 ArrayList<CellLayout> layouts = new ArrayList<CellLayout>(); 4542 int screenCount = getChildCount(); 4543 for (int screen = 0; screen < screenCount; screen++) { 4544 layouts.add(((CellLayout) getChildAt(screen))); 4545 } 4546 if (mLauncher.getHotseat() != null) { 4547 layouts.add(mLauncher.getHotseat().getLayout()); 4548 } 4549 return layouts; 4550 } 4551 4552 /** 4553 * We should only use this to search for specific children. Do not use this method to modify 4554 * ShortcutsAndWidgetsContainer directly. Includes ShortcutAndWidgetContainers from 4555 * the hotseat and workspace pages 4556 */ 4557 ArrayList<ShortcutAndWidgetContainer> getAllShortcutAndWidgetContainers() { 4558 ArrayList<ShortcutAndWidgetContainer> childrenLayouts = 4559 new ArrayList<ShortcutAndWidgetContainer>(); 4560 int screenCount = getChildCount(); 4561 for (int screen = 0; screen < screenCount; screen++) { 4562 childrenLayouts.add(((CellLayout) getChildAt(screen)).getShortcutsAndWidgets()); 4563 } 4564 if (mLauncher.getHotseat() != null) { 4565 childrenLayouts.add(mLauncher.getHotseat().getLayout().getShortcutsAndWidgets()); 4566 } 4567 return childrenLayouts; 4568 } 4569 4570 public Folder getFolderForTag(final Object tag) { 4571 return (Folder) getFirstMatch(new ItemOperator() { 4572 4573 @Override 4574 public boolean evaluate(ItemInfo info, View v, View parent) { 4575 return (v instanceof Folder) && (((Folder) v).getInfo() == tag) 4576 && ((Folder) v).getInfo().opened; 4577 } 4578 }); 4579 } 4580 4581 public View getViewForTag(final Object tag) { 4582 return getFirstMatch(new ItemOperator() { 4583 4584 @Override 4585 public boolean evaluate(ItemInfo info, View v, View parent) { 4586 return info == tag; 4587 } 4588 }); 4589 } 4590 4591 public LauncherAppWidgetHostView getWidgetForAppWidgetId(final int appWidgetId) { 4592 return (LauncherAppWidgetHostView) getFirstMatch(new ItemOperator() { 4593 4594 @Override 4595 public boolean evaluate(ItemInfo info, View v, View parent) { 4596 return (info instanceof LauncherAppWidgetInfo) && 4597 ((LauncherAppWidgetInfo) info).appWidgetId == appWidgetId; 4598 } 4599 }); 4600 } 4601 4602 private View getFirstMatch(final ItemOperator operator) { 4603 final View[] value = new View[1]; 4604 mapOverItems(MAP_NO_RECURSE, new ItemOperator() { 4605 @Override 4606 public boolean evaluate(ItemInfo info, View v, View parent) { 4607 if (operator.evaluate(info, v, parent)) { 4608 value[0] = v; 4609 return true; 4610 } 4611 return false; 4612 } 4613 }); 4614 return value[0]; 4615 } 4616 4617 void clearDropTargets() { 4618 mapOverItems(MAP_NO_RECURSE, new ItemOperator() { 4619 @Override 4620 public boolean evaluate(ItemInfo info, View v, View parent) { 4621 if (v instanceof DropTarget) { 4622 mDragController.removeDropTarget((DropTarget) v); 4623 } 4624 // not done, process all the shortcuts 4625 return false; 4626 } 4627 }); 4628 } 4629 4630 // Removes ALL items that match a given package name, this is usually called when a package 4631 // has been removed and we want to remove all components (widgets, shortcuts, apps) that 4632 // belong to that package. 4633 void removeItemsByPackageName(final ArrayList<String> packages, final UserHandleCompat user) { 4634 final HashSet<String> packageNames = new HashSet<String>(); 4635 packageNames.addAll(packages); 4636 4637 // Filter out all the ItemInfos that this is going to affect 4638 final HashSet<ItemInfo> infos = new HashSet<ItemInfo>(); 4639 final HashSet<ComponentName> cns = new HashSet<ComponentName>(); 4640 ArrayList<CellLayout> cellLayouts = getWorkspaceAndHotseatCellLayouts(); 4641 for (CellLayout layoutParent : cellLayouts) { 4642 ViewGroup layout = layoutParent.getShortcutsAndWidgets(); 4643 int childCount = layout.getChildCount(); 4644 for (int i = 0; i < childCount; ++i) { 4645 View view = layout.getChildAt(i); 4646 infos.add((ItemInfo) view.getTag()); 4647 } 4648 } 4649 LauncherModel.ItemInfoFilter filter = new LauncherModel.ItemInfoFilter() { 4650 @Override 4651 public boolean filterItem(ItemInfo parent, ItemInfo info, 4652 ComponentName cn) { 4653 if (packageNames.contains(cn.getPackageName()) 4654 && info.user.equals(user)) { 4655 cns.add(cn); 4656 return true; 4657 } 4658 return false; 4659 } 4660 }; 4661 LauncherModel.filterItemInfos(infos, filter); 4662 4663 // Remove the affected components 4664 removeItemsByComponentName(cns, user); 4665 } 4666 4667 // Removes items that match the application info specified, when applications are removed 4668 // as a part of an update, this is called to ensure that other widgets and application 4669 // shortcuts are not removed. 4670 void removeItemsByApplicationInfo(final ArrayList<AppInfo> appInfos, UserHandleCompat user) { 4671 // Just create a hash table of all the specific components that this will affect 4672 HashSet<ComponentName> cns = new HashSet<ComponentName>(); 4673 for (AppInfo info : appInfos) { 4674 cns.add(info.componentName); 4675 } 4676 4677 // Remove all the things 4678 removeItemsByComponentName(cns, user); 4679 } 4680 4681 void removeItemsByComponentName(final HashSet<ComponentName> componentNames, 4682 final UserHandleCompat user) { 4683 ArrayList<CellLayout> cellLayouts = getWorkspaceAndHotseatCellLayouts(); 4684 for (final CellLayout layoutParent: cellLayouts) { 4685 final ViewGroup layout = layoutParent.getShortcutsAndWidgets(); 4686 4687 final HashMap<ItemInfo, View> children = new HashMap<ItemInfo, View>(); 4688 for (int j = 0; j < layout.getChildCount(); j++) { 4689 final View view = layout.getChildAt(j); 4690 children.put((ItemInfo) view.getTag(), view); 4691 } 4692 4693 final ArrayList<View> childrenToRemove = new ArrayList<View>(); 4694 final HashMap<FolderInfo, ArrayList<ShortcutInfo>> folderAppsToRemove = 4695 new HashMap<FolderInfo, ArrayList<ShortcutInfo>>(); 4696 LauncherModel.ItemInfoFilter filter = new LauncherModel.ItemInfoFilter() { 4697 @Override 4698 public boolean filterItem(ItemInfo parent, ItemInfo info, 4699 ComponentName cn) { 4700 if (parent instanceof FolderInfo) { 4701 if (componentNames.contains(cn) && info.user.equals(user)) { 4702 FolderInfo folder = (FolderInfo) parent; 4703 ArrayList<ShortcutInfo> appsToRemove; 4704 if (folderAppsToRemove.containsKey(folder)) { 4705 appsToRemove = folderAppsToRemove.get(folder); 4706 } else { 4707 appsToRemove = new ArrayList<ShortcutInfo>(); 4708 folderAppsToRemove.put(folder, appsToRemove); 4709 } 4710 appsToRemove.add((ShortcutInfo) info); 4711 return true; 4712 } 4713 } else { 4714 if (componentNames.contains(cn) && info.user.equals(user)) { 4715 childrenToRemove.add(children.get(info)); 4716 return true; 4717 } 4718 } 4719 return false; 4720 } 4721 }; 4722 LauncherModel.filterItemInfos(children.keySet(), filter); 4723 4724 // Remove all the apps from their folders 4725 for (FolderInfo folder : folderAppsToRemove.keySet()) { 4726 ArrayList<ShortcutInfo> appsToRemove = folderAppsToRemove.get(folder); 4727 for (ShortcutInfo info : appsToRemove) { 4728 folder.remove(info); 4729 } 4730 } 4731 4732 // Remove all the other children 4733 for (View child : childrenToRemove) { 4734 // Note: We can not remove the view directly from CellLayoutChildren as this 4735 // does not re-mark the spaces as unoccupied. 4736 layoutParent.removeViewInLayout(child); 4737 if (child instanceof DropTarget) { 4738 mDragController.removeDropTarget((DropTarget) child); 4739 } 4740 } 4741 4742 if (childrenToRemove.size() > 0) { 4743 layout.requestLayout(); 4744 layout.invalidate(); 4745 } 4746 } 4747 4748 // Strip all the empty screens 4749 stripEmptyScreens(); 4750 } 4751 4752 private void updateShortcut(HashMap<ComponentName, AppInfo> appsMap, ItemInfo info, 4753 View child) { 4754 ComponentName cn = info.getIntent().getComponent(); 4755 if (info.getRestoredIntent() != null) { 4756 cn = info.getRestoredIntent().getComponent(); 4757 } 4758 if (cn != null) { 4759 AppInfo appInfo = appsMap.get(cn); 4760 if ((appInfo != null) && LauncherModel.isShortcutInfoUpdateable(info)) { 4761 ShortcutInfo shortcutInfo = (ShortcutInfo) info; 4762 BubbleTextView shortcut = (BubbleTextView) child; 4763 shortcutInfo.restore(); 4764 shortcutInfo.updateIcon(mIconCache); 4765 shortcutInfo.title = appInfo.title.toString(); 4766 shortcutInfo.contentDescription = appInfo.contentDescription; 4767 shortcut.applyFromShortcutInfo(shortcutInfo, mIconCache, true); 4768 } 4769 } 4770 } 4771 4772 interface ItemOperator { 4773 /** 4774 * Process the next itemInfo, possibly with side-effect on {@link ItemOperator#value}. 4775 * 4776 * @param info info for the shortcut 4777 * @param view view for the shortcut 4778 * @param parent containing folder, or null 4779 * @return true if done, false to continue the map 4780 */ 4781 public boolean evaluate(ItemInfo info, View view, View parent); 4782 } 4783 4784 /** 4785 * Map the operator over the shortcuts and widgets, return the first-non-null value. 4786 * 4787 * @param recurse true: iterate over folder children. false: op get the folders themselves. 4788 * @param op the operator to map over the shortcuts 4789 */ 4790 void mapOverItems(boolean recurse, ItemOperator op) { 4791 ArrayList<ShortcutAndWidgetContainer> containers = getAllShortcutAndWidgetContainers(); 4792 final int containerCount = containers.size(); 4793 for (int containerIdx = 0; containerIdx < containerCount; containerIdx++) { 4794 ShortcutAndWidgetContainer container = containers.get(containerIdx); 4795 // map over all the shortcuts on the workspace 4796 final int itemCount = container.getChildCount(); 4797 for (int itemIdx = 0; itemIdx < itemCount; itemIdx++) { 4798 View item = container.getChildAt(itemIdx); 4799 ItemInfo info = (ItemInfo) item.getTag(); 4800 if (recurse && info instanceof FolderInfo && item instanceof FolderIcon) { 4801 FolderIcon folder = (FolderIcon) item; 4802 ArrayList<View> folderChildren = folder.getFolder().getItemsInReadingOrder(); 4803 // map over all the children in the folder 4804 final int childCount = folderChildren.size(); 4805 for (int childIdx = 0; childIdx < childCount; childIdx++) { 4806 View child = folderChildren.get(childIdx); 4807 info = (ItemInfo) child.getTag(); 4808 if (op.evaluate(info, child, folder)) { 4809 return; 4810 } 4811 } 4812 } else { 4813 if (op.evaluate(info, item, null)) { 4814 return; 4815 } 4816 } 4817 } 4818 } 4819 } 4820 4821 void updateShortcutsAndWidgets(ArrayList<AppInfo> apps) { 4822 // Create a map of the apps to test against 4823 final HashMap<ComponentName, AppInfo> appsMap = new HashMap<ComponentName, AppInfo>(); 4824 final HashSet<String> pkgNames = new HashSet<String>(); 4825 for (AppInfo ai : apps) { 4826 appsMap.put(ai.componentName, ai); 4827 pkgNames.add(ai.componentName.getPackageName()); 4828 } 4829 4830 mapOverItems(MAP_RECURSE, new ItemOperator() { 4831 @Override 4832 public boolean evaluate(ItemInfo info, View v, View parent) { 4833 if (info instanceof ShortcutInfo) { 4834 updateShortcut(appsMap, info, v); 4835 if (parent != null) { 4836 parent.invalidate(); 4837 } 4838 } 4839 // process all the shortcuts 4840 return false; 4841 } 4842 }); 4843 4844 restorePendingWidgets(pkgNames); 4845 } 4846 4847 public void removeAbandonedPromise(String packageName, UserHandleCompat user) { 4848 ArrayList<String> packages = new ArrayList<String>(1); 4849 packages.add(packageName); 4850 LauncherModel.deletePackageFromDatabase(mLauncher, packageName, user); 4851 removeItemsByPackageName(packages, user); 4852 } 4853 4854 public void updatePackageState(ArrayList<PackageInstallInfo> installInfos) { 4855 HashSet<String> completedPackages = new HashSet<String>(); 4856 4857 for (final PackageInstallInfo installInfo : installInfos) { 4858 mapOverItems(MAP_RECURSE, new ItemOperator() { 4859 @Override 4860 public boolean evaluate(ItemInfo info, View v, View parent) { 4861 if (info instanceof ShortcutInfo 4862 && ((ShortcutInfo) info).isPromiseFor(installInfo.packageName) 4863 && v instanceof BubbleTextView) { 4864 ((ShortcutInfo) info).setProgress(installInfo.progress); 4865 ((ShortcutInfo) info).setState(installInfo.state); 4866 ((BubbleTextView)v).applyState(); 4867 } else if (v instanceof PendingAppWidgetHostView 4868 && info instanceof LauncherAppWidgetInfo 4869 && ((LauncherAppWidgetInfo) info).providerName.getPackageName() 4870 .equals(installInfo.packageName)) { 4871 ((LauncherAppWidgetInfo) info).installProgress = installInfo.progress; 4872 ((PendingAppWidgetHostView) v).applyState(); 4873 } 4874 4875 // process all the shortcuts 4876 return false; 4877 } 4878 }); 4879 4880 if (installInfo.state == ShortcutInfo.PACKAGE_STATE_DEFAULT) { 4881 completedPackages.add(installInfo.packageName); 4882 } 4883 } 4884 4885 if (!completedPackages.isEmpty()) { 4886 restorePendingWidgets(completedPackages); 4887 } 4888 } 4889 4890 private void restorePendingWidgets(final Set<String> installedPackaged) { 4891 final ArrayList<LauncherAppWidgetInfo> changedInfo = new ArrayList<LauncherAppWidgetInfo>(); 4892 4893 // Iterate non recursively as widgets can't be inside a folder. 4894 mapOverItems(MAP_NO_RECURSE, new ItemOperator() { 4895 4896 @Override 4897 public boolean evaluate(ItemInfo info, View v, View parent) { 4898 if (info instanceof LauncherAppWidgetInfo) { 4899 LauncherAppWidgetInfo widgetInfo = (LauncherAppWidgetInfo) info; 4900 if (widgetInfo.hasRestoreFlag(LauncherAppWidgetInfo.FLAG_PROVIDER_NOT_READY) 4901 && installedPackaged.contains(widgetInfo.providerName.getPackageName())) { 4902 4903 changedInfo.add(widgetInfo); 4904 4905 // Remove the provider not ready flag 4906 widgetInfo.restoreStatus &= ~LauncherAppWidgetInfo.FLAG_PROVIDER_NOT_READY; 4907 LauncherModel.updateItemInDatabase(getContext(), widgetInfo); 4908 } 4909 } 4910 // process all the widget 4911 return false; 4912 } 4913 }); 4914 if (!changedInfo.isEmpty()) { 4915 DeferredWidgetRefresh widgetRefresh = new DeferredWidgetRefresh(changedInfo, 4916 mLauncher.getAppWidgetHost()); 4917 if (LauncherModel.findAppWidgetProviderInfoWithComponent(getContext(), 4918 changedInfo.get(0).providerName) != null) { 4919 // Re-inflate the widgets which have changed status 4920 widgetRefresh.run(); 4921 } else { 4922 // widgetRefresh will automatically run when the packages are updated. 4923 } 4924 } 4925 } 4926 4927 private void moveToScreen(int page, boolean animate) { 4928 if (!workspaceInModalState()) { 4929 if (animate) { 4930 snapToPage(page); 4931 } else { 4932 setCurrentPage(page); 4933 } 4934 } 4935 View child = getChildAt(page); 4936 if (child != null) { 4937 child.requestFocus(); 4938 } 4939 } 4940 4941 void moveToDefaultScreen(boolean animate) { 4942 moveToScreen(mDefaultPage, animate); 4943 } 4944 4945 void moveToCustomContentScreen(boolean animate) { 4946 if (hasCustomContent()) { 4947 int ccIndex = getPageIndexForScreenId(CUSTOM_CONTENT_SCREEN_ID); 4948 if (animate) { 4949 snapToPage(ccIndex); 4950 } else { 4951 setCurrentPage(ccIndex); 4952 } 4953 View child = getChildAt(ccIndex); 4954 if (child != null) { 4955 child.requestFocus(); 4956 } 4957 } 4958 exitWidgetResizeMode(); 4959 } 4960 4961 @Override 4962 protected PageIndicator.PageMarkerResources getPageIndicatorMarker(int pageIndex) { 4963 long screenId = getScreenIdForPageIndex(pageIndex); 4964 if (screenId == EXTRA_EMPTY_SCREEN_ID) { 4965 int count = mScreenOrder.size() - numCustomPages(); 4966 if (count > 1) { 4967 return new PageIndicator.PageMarkerResources(R.drawable.ic_pageindicator_current, 4968 R.drawable.ic_pageindicator_add); 4969 } 4970 } 4971 4972 return super.getPageIndicatorMarker(pageIndex); 4973 } 4974 4975 @Override 4976 public void syncPages() { 4977 } 4978 4979 @Override 4980 public void syncPageItems(int page, boolean immediate) { 4981 } 4982 4983 protected String getPageIndicatorDescription() { 4984 String settings = getResources().getString(R.string.settings_button_text); 4985 return getCurrentPageDescription() + ", " + settings; 4986 } 4987 4988 protected String getCurrentPageDescription() { 4989 int page = (mNextPage != INVALID_PAGE) ? mNextPage : mCurrentPage; 4990 int delta = numCustomPages(); 4991 if (hasCustomContent() && getNextPage() == 0) { 4992 return mCustomContentDescription; 4993 } 4994 return String.format(getContext().getString(R.string.workspace_scroll_format), 4995 page + 1 - delta, getChildCount() - delta); 4996 } 4997 4998 public void getLocationInDragLayer(int[] loc) { 4999 mLauncher.getDragLayer().getLocationInDragLayer(this, loc); 5000 } 5001 5002 /** 5003 * Used as a workaround to ensure that the AppWidgetService receives the 5004 * PACKAGE_ADDED broadcast before updating widgets. 5005 */ 5006 private class DeferredWidgetRefresh implements Runnable { 5007 private final ArrayList<LauncherAppWidgetInfo> mInfos; 5008 private final LauncherAppWidgetHost mHost; 5009 private final Handler mHandler; 5010 5011 private boolean mRefreshPending; 5012 5013 public DeferredWidgetRefresh(ArrayList<LauncherAppWidgetInfo> infos, 5014 LauncherAppWidgetHost host) { 5015 mInfos = infos; 5016 mHost = host; 5017 mHandler = new Handler(); 5018 mRefreshPending = true; 5019 5020 mHost.addProviderChangeListener(this); 5021 // Force refresh after 10 seconds, if we don't get the provider changed event. 5022 // This could happen when the provider is no longer available in the app. 5023 mHandler.postDelayed(this, 10000); 5024 } 5025 5026 @Override 5027 public void run() { 5028 mHost.removeProviderChangeListener(this); 5029 mHandler.removeCallbacks(this); 5030 5031 if (!mRefreshPending) { 5032 return; 5033 } 5034 5035 mRefreshPending = false; 5036 5037 for (LauncherAppWidgetInfo info : mInfos) { 5038 if (info.hostView instanceof PendingAppWidgetHostView) { 5039 PendingAppWidgetHostView view = (PendingAppWidgetHostView) info.hostView; 5040 mLauncher.removeAppWidget(info); 5041 5042 CellLayout cl = (CellLayout) view.getParent().getParent(); 5043 // Remove the current widget 5044 cl.removeView(view); 5045 mLauncher.bindAppWidget(info); 5046 } 5047 } 5048 } 5049 } 5050} 5051