Workspace.java revision ce9249e4d31dab2a2436e5bcb4488ed7497d481c
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.AnimatorSet; 21import android.animation.LayoutTransition; 22import android.animation.ObjectAnimator; 23import android.animation.TimeInterpolator; 24import android.animation.ValueAnimator; 25import android.animation.ValueAnimator.AnimatorUpdateListener; 26import android.app.WallpaperManager; 27import android.appwidget.AppWidgetHostView; 28import android.appwidget.AppWidgetProviderInfo; 29import android.content.ComponentName; 30import android.content.Context; 31import android.content.Intent; 32import android.content.SharedPreferences; 33import android.content.res.Resources; 34import android.content.res.TypedArray; 35import android.graphics.Bitmap; 36import android.graphics.Canvas; 37import android.graphics.Color; 38import android.graphics.Matrix; 39import android.graphics.Paint; 40import android.graphics.Point; 41import android.graphics.PointF; 42import android.graphics.Rect; 43import android.graphics.Region.Op; 44import android.graphics.drawable.Drawable; 45import android.os.IBinder; 46import android.os.Parcelable; 47import android.util.AttributeSet; 48import android.util.Log; 49import android.util.SparseArray; 50import android.view.Display; 51import android.view.MotionEvent; 52import android.view.View; 53import android.view.ViewGroup; 54import android.view.animation.DecelerateInterpolator; 55import android.widget.ImageView; 56import android.widget.TextView; 57 58import com.android.launcher3.FolderIcon.FolderRingAnimator; 59import com.android.launcher3.Launcher.CustomContentCallbacks; 60import com.android.launcher3.LauncherSettings.Favorites; 61 62import java.net.URISyntaxException; 63import java.util.ArrayList; 64import java.util.HashMap; 65import java.util.HashSet; 66import java.util.Iterator; 67import java.util.Set; 68 69/** 70 * The workspace is a wide area with a wallpaper and a finite number of pages. 71 * Each page contains a number of icons, folders or widgets the user can 72 * interact with. A workspace is meant to be used with a fixed width only. 73 */ 74public class Workspace extends SmoothPagedView 75 implements DropTarget, DragSource, DragScroller, View.OnTouchListener, 76 DragController.DragListener, LauncherTransitionable, ViewGroup.OnHierarchyChangeListener { 77 private static final String TAG = "Launcher.Workspace"; 78 79 // Y rotation to apply to the workspace screens 80 private static final float WORKSPACE_OVERSCROLL_ROTATION = 24f; 81 82 private static final int CHILDREN_OUTLINE_FADE_OUT_DELAY = 0; 83 private static final int CHILDREN_OUTLINE_FADE_OUT_DURATION = 375; 84 private static final int CHILDREN_OUTLINE_FADE_IN_DURATION = 100; 85 86 private static final int BACKGROUND_FADE_OUT_DURATION = 350; 87 private static final int ADJACENT_SCREEN_DROP_DURATION = 300; 88 private static final int FLING_THRESHOLD_VELOCITY = 500; 89 90 // These animators are used to fade the children's outlines 91 private ObjectAnimator mChildrenOutlineFadeInAnimation; 92 private ObjectAnimator mChildrenOutlineFadeOutAnimation; 93 private float mChildrenOutlineAlpha = 0; 94 95 // These properties refer to the background protection gradient used for AllApps and Customize 96 private ValueAnimator mBackgroundFadeInAnimation; 97 private ValueAnimator mBackgroundFadeOutAnimation; 98 private Drawable mBackground; 99 boolean mDrawBackground = true; 100 private float mBackgroundAlpha = 0; 101 102 private LayoutTransition mLayoutTransition; 103 private final WallpaperManager mWallpaperManager; 104 private IBinder mWindowToken; 105 private static final float WALLPAPER_SCREENS_SPAN = 2f; 106 107 private int mDefaultPage; 108 109 // The screen id used for the empty screen always present to the right. 110 private final static long EXTRA_EMPTY_SCREEN_ID = -201; 111 private final static long CUSTOM_CONTENT_SCREEN_ID = -301; 112 113 private HashMap<Long, CellLayout> mWorkspaceScreens = new HashMap<Long, CellLayout>(); 114 private ArrayList<Long> mScreenOrder = new ArrayList<Long>(); 115 116 /** 117 * CellInfo for the cell that is currently being dragged 118 */ 119 private CellLayout.CellInfo mDragInfo; 120 121 /** 122 * Target drop area calculated during last acceptDrop call. 123 */ 124 private int[] mTargetCell = new int[2]; 125 private int mDragOverX = -1; 126 private int mDragOverY = -1; 127 128 static Rect mLandscapeCellLayoutMetrics = null; 129 static Rect mPortraitCellLayoutMetrics = null; 130 131 CustomContentCallbacks mCustomContentCallbacks; 132 boolean mCustomContentShowing; 133 134 /** 135 * The CellLayout that is currently being dragged over 136 */ 137 private CellLayout mDragTargetLayout = null; 138 /** 139 * The CellLayout that we will show as glowing 140 */ 141 private CellLayout mDragOverlappingLayout = null; 142 143 /** 144 * The CellLayout which will be dropped to 145 */ 146 private CellLayout mDropToLayout = null; 147 148 private Launcher mLauncher; 149 private IconCache mIconCache; 150 private DragController mDragController; 151 152 // These are temporary variables to prevent having to allocate a new object just to 153 // return an (x, y) value from helper functions. Do NOT use them to maintain other state. 154 private int[] mTempCell = new int[2]; 155 private int[] mTempPt = new int[2]; 156 private int[] mTempEstimate = new int[2]; 157 private float[] mDragViewVisualCenter = new float[2]; 158 private float[] mTempCellLayoutCenterCoordinates = new float[2]; 159 private Matrix mTempInverseMatrix = new Matrix(); 160 161 private SpringLoadedDragController mSpringLoadedDragController; 162 private float mSpringLoadedShrinkFactor; 163 164 private static final int DEFAULT_CELL_COUNT_X = 4; 165 private static final int DEFAULT_CELL_COUNT_Y = 4; 166 167 // State variable that indicates whether the pages are small (ie when you're 168 // in all apps or customize mode) 169 170 enum State { NORMAL, SPRING_LOADED, SMALL }; 171 private State mState = State.NORMAL; 172 private boolean mIsSwitchingState = false; 173 174 boolean mAnimatingViewIntoPlace = false; 175 boolean mIsDragOccuring = false; 176 boolean mChildrenLayersEnabled = true; 177 178 private boolean mStripScreensOnPageStopMoving = false; 179 180 /** Is the user is dragging an item near the edge of a page? */ 181 private boolean mInScrollArea = false; 182 183 private HolographicOutlineHelper mOutlineHelper; 184 private Bitmap mDragOutline = null; 185 private final Rect mTempRect = new Rect(); 186 private final int[] mTempXY = new int[2]; 187 private int[] mTempVisiblePagesRange = new int[2]; 188 private float mOverscrollFade = 0; 189 private boolean mOverscrollTransformsSet; 190 public static final int DRAG_BITMAP_PADDING = 2; 191 private boolean mWorkspaceFadeInAdjacentScreens; 192 193 enum WallpaperVerticalOffset { TOP, MIDDLE, BOTTOM }; 194 int mWallpaperWidth; 195 int mWallpaperHeight; 196 WallpaperOffsetInterpolator mWallpaperOffset; 197 boolean mUpdateWallpaperOffsetImmediately = false; 198 private Runnable mDelayedResizeRunnable; 199 private Runnable mDelayedSnapToPageRunnable; 200 private Point mDisplaySize = new Point(); 201 private boolean mIsStaticWallpaper; 202 private int mWallpaperTravelWidth; 203 private int mCameraDistance; 204 205 // Variables relating to the creation of user folders by hovering shortcuts over shortcuts 206 private static final int FOLDER_CREATION_TIMEOUT = 0; 207 private static final int REORDER_TIMEOUT = 250; 208 private final Alarm mFolderCreationAlarm = new Alarm(); 209 private final Alarm mReorderAlarm = new Alarm(); 210 private FolderRingAnimator mDragFolderRingAnimator = null; 211 private FolderIcon mDragOverFolderIcon = null; 212 private boolean mCreateUserFolderOnDrop = false; 213 private boolean mAddToExistingFolderOnDrop = false; 214 private DropTarget.DragEnforcer mDragEnforcer; 215 private float mMaxDistanceForFolderCreation; 216 217 // Variables relating to touch disambiguation (scrolling workspace vs. scrolling a widget) 218 private float mXDown; 219 private float mYDown; 220 final static float START_DAMPING_TOUCH_SLOP_ANGLE = (float) Math.PI / 6; 221 final static float MAX_SWIPE_ANGLE = (float) Math.PI / 3; 222 final static float TOUCH_SLOP_DAMPING_FACTOR = 4; 223 224 // Relating to the animation of items being dropped externally 225 public static final int ANIMATE_INTO_POSITION_AND_DISAPPEAR = 0; 226 public static final int ANIMATE_INTO_POSITION_AND_REMAIN = 1; 227 public static final int ANIMATE_INTO_POSITION_AND_RESIZE = 2; 228 public static final int COMPLETE_TWO_STAGE_WIDGET_DROP_ANIMATION = 3; 229 public static final int CANCEL_TWO_STAGE_WIDGET_DROP_ANIMATION = 4; 230 231 // Related to dragging, folder creation and reordering 232 private static final int DRAG_MODE_NONE = 0; 233 private static final int DRAG_MODE_CREATE_FOLDER = 1; 234 private static final int DRAG_MODE_ADD_TO_FOLDER = 2; 235 private static final int DRAG_MODE_REORDER = 3; 236 private int mDragMode = DRAG_MODE_NONE; 237 private int mLastReorderX = -1; 238 private int mLastReorderY = -1; 239 240 private SparseArray<Parcelable> mSavedStates; 241 private final ArrayList<Integer> mRestoredPages = new ArrayList<Integer>(); 242 243 // These variables are used for storing the initial and final values during workspace animations 244 private int mSavedScrollX; 245 private float mSavedRotationY; 246 private float mSavedTranslationX; 247 248 private float mCurrentScale; 249 private float mNewScale; 250 private float[] mOldBackgroundAlphas; 251 private float[] mOldAlphas; 252 private float[] mNewBackgroundAlphas; 253 private float[] mNewAlphas; 254 private int mLastChildCount = -1; 255 private float mTransitionProgress; 256 257 private Runnable mDeferredAction; 258 private boolean mDeferDropAfterUninstall; 259 private boolean mUninstallSuccessful; 260 261 private final Runnable mBindPages = new Runnable() { 262 @Override 263 public void run() { 264 mLauncher.getModel().bindRemainingSynchronousPages(); 265 } 266 }; 267 268 /** 269 * Used to inflate the Workspace from XML. 270 * 271 * @param context The application's context. 272 * @param attrs The attributes set containing the Workspace's customization values. 273 */ 274 public Workspace(Context context, AttributeSet attrs) { 275 this(context, attrs, 0); 276 } 277 278 /** 279 * Used to inflate the Workspace from XML. 280 * 281 * @param context The application's context. 282 * @param attrs The attributes set containing the Workspace's customization values. 283 * @param defStyle Unused. 284 */ 285 public Workspace(Context context, AttributeSet attrs, int defStyle) { 286 super(context, attrs, defStyle); 287 mContentIsRefreshable = false; 288 289 mOutlineHelper = HolographicOutlineHelper.obtain(context); 290 291 mDragEnforcer = new DropTarget.DragEnforcer(context); 292 // With workspace, data is available straight from the get-go 293 setDataIsReady(); 294 295 mLauncher = (Launcher) context; 296 final Resources res = getResources(); 297 mWorkspaceFadeInAdjacentScreens = res.getBoolean(R.bool.config_workspaceFadeAdjacentScreens); 298 mFadeInAdjacentScreens = false; 299 mWallpaperManager = WallpaperManager.getInstance(context); 300 301 int cellCountX = DEFAULT_CELL_COUNT_X; 302 int cellCountY = DEFAULT_CELL_COUNT_Y; 303 304 TypedArray a = context.obtainStyledAttributes(attrs, 305 R.styleable.Workspace, defStyle, 0); 306 307 if (LauncherAppState.getInstance().isScreenLarge()) { 308 // Determine number of rows/columns dynamically 309 // TODO: This code currently fails on tablets with an aspect ratio < 1.3. 310 // Around that ratio we should make cells the same size in portrait and 311 // landscape 312 TypedArray actionBarSizeTypedArray = 313 context.obtainStyledAttributes(new int[] { android.R.attr.actionBarSize }); 314 final float actionBarHeight = actionBarSizeTypedArray.getDimension(0, 0f); 315 316 Point minDims = new Point(); 317 Point maxDims = new Point(); 318 mLauncher.getWindowManager().getDefaultDisplay().getCurrentSizeRange(minDims, maxDims); 319 320 cellCountX = 1; 321 while (CellLayout.widthInPortrait(res, cellCountX + 1) <= minDims.x) { 322 cellCountX++; 323 } 324 325 cellCountY = 1; 326 while (actionBarHeight + CellLayout.heightInLandscape(res, cellCountY + 1) 327 <= minDims.y) { 328 cellCountY++; 329 } 330 } 331 332 mSpringLoadedShrinkFactor = 333 res.getInteger(R.integer.config_workspaceSpringLoadShrinkPercentage) / 100.0f; 334 mCameraDistance = res.getInteger(R.integer.config_cameraDistance); 335 336 // if the value is manually specified, use that instead 337 cellCountX = a.getInt(R.styleable.Workspace_cellCountX, cellCountX); 338 cellCountY = a.getInt(R.styleable.Workspace_cellCountY, cellCountY); 339 mDefaultPage = a.getInt(R.styleable.Workspace_defaultScreen, 1); 340 341 a.recycle(); 342 343 setOnHierarchyChangeListener(this); 344 345 LauncherModel.updateWorkspaceLayoutCells(cellCountX, cellCountY); 346 setHapticFeedbackEnabled(false); 347 348 initWorkspace(); 349 350 // Disable multitouch across the workspace/all apps/customize tray 351 setMotionEventSplittingEnabled(true); 352 353 // Unless otherwise specified this view is important for accessibility. 354 if (getImportantForAccessibility() == View.IMPORTANT_FOR_ACCESSIBILITY_AUTO) { 355 setImportantForAccessibility(View.IMPORTANT_FOR_ACCESSIBILITY_YES); 356 } 357 } 358 359 // estimate the size of a widget with spans hSpan, vSpan. return MAX_VALUE for each 360 // dimension if unsuccessful 361 public int[] estimateItemSize(int hSpan, int vSpan, 362 ItemInfo itemInfo, boolean springLoaded) { 363 int[] size = new int[2]; 364 if (getChildCount() > 0) { 365 CellLayout cl = (CellLayout) mLauncher.getWorkspace().getChildAt(0); 366 Rect r = estimateItemPosition(cl, itemInfo, 0, 0, hSpan, vSpan); 367 size[0] = r.width(); 368 size[1] = r.height(); 369 if (springLoaded) { 370 size[0] *= mSpringLoadedShrinkFactor; 371 size[1] *= mSpringLoadedShrinkFactor; 372 } 373 return size; 374 } else { 375 size[0] = Integer.MAX_VALUE; 376 size[1] = Integer.MAX_VALUE; 377 return size; 378 } 379 } 380 381 public Rect estimateItemPosition(CellLayout cl, ItemInfo pendingInfo, 382 int hCell, int vCell, int hSpan, int vSpan) { 383 Rect r = new Rect(); 384 cl.cellToRect(hCell, vCell, hSpan, vSpan, r); 385 return r; 386 } 387 388 public void onDragStart(DragSource source, Object info, int dragAction) { 389 mIsDragOccuring = true; 390 updateChildrenLayersEnabled(false); 391 mLauncher.lockScreenOrientation(); 392 setChildrenBackgroundAlphaMultipliers(1f); 393 // Prevent any Un/InstallShortcutReceivers from updating the db while we are dragging 394 InstallShortcutReceiver.enableInstallQueue(); 395 UninstallShortcutReceiver.enableUninstallQueue(); 396 } 397 398 public void onDragEnd() { 399 mIsDragOccuring = false; 400 updateChildrenLayersEnabled(false); 401 mLauncher.unlockScreenOrientation(false); 402 403 // Re-enable any Un/InstallShortcutReceiver and now process any queued items 404 InstallShortcutReceiver.disableAndFlushInstallQueue(getContext()); 405 UninstallShortcutReceiver.disableAndFlushUninstallQueue(getContext()); 406 } 407 408 /** 409 * Initializes various states for this workspace. 410 */ 411 protected void initWorkspace() { 412 Context context = getContext(); 413 mCurrentPage = mDefaultPage; 414 Launcher.setScreen(mCurrentPage); 415 LauncherAppState app = LauncherAppState.getInstance(); 416 mIconCache = app.getIconCache(); 417 setWillNotDraw(false); 418 setClipChildren(false); 419 setClipToPadding(false); 420 setChildrenDrawnWithCacheEnabled(true); 421 setMinScale(0.5f); 422 setupLayoutTransition(); 423 424 final Resources res = getResources(); 425 try { 426 mBackground = res.getDrawable(R.drawable.apps_customize_bg); 427 } catch (Resources.NotFoundException e) { 428 // In this case, we will skip drawing background protection 429 } 430 431 mWallpaperOffset = new WallpaperOffsetInterpolator(); 432 Display display = mLauncher.getWindowManager().getDefaultDisplay(); 433 display.getSize(mDisplaySize); 434 mWallpaperTravelWidth = (int) (mDisplaySize.x * 435 wallpaperTravelToScreenWidthRatio(mDisplaySize.x, mDisplaySize.y)); 436 437 mMaxDistanceForFolderCreation = (0.55f * res.getDimensionPixelSize(R.dimen.app_icon_size)); 438 mFlingThresholdVelocity = (int) (FLING_THRESHOLD_VELOCITY * mDensity); 439 } 440 441 private void setupLayoutTransition() { 442 // We want to show layout transitions when pages are deleted, to close the gap. 443 mLayoutTransition = new LayoutTransition(); 444 mLayoutTransition.enableTransitionType(LayoutTransition.DISAPPEARING); 445 mLayoutTransition.enableTransitionType(LayoutTransition.CHANGE_DISAPPEARING); 446 mLayoutTransition.disableTransitionType(LayoutTransition.APPEARING); 447 mLayoutTransition.disableTransitionType(LayoutTransition.CHANGE_APPEARING); 448 setLayoutTransition(mLayoutTransition); 449 } 450 451 @Override 452 protected int getScrollMode() { 453 return SmoothPagedView.X_LARGE_MODE; 454 } 455 456 @Override 457 public void onChildViewAdded(View parent, View child) { 458 if (!(child instanceof CellLayout)) { 459 throw new IllegalArgumentException("A Workspace can only have CellLayout children."); 460 } 461 CellLayout cl = ((CellLayout) child); 462 cl.setOnInterceptTouchListener(this); 463 cl.setClickable(true); 464 cl.setContentDescription(getContext().getString( 465 R.string.workspace_description_format, getChildCount())); 466 467 super.onChildViewAdded(parent, child); 468 } 469 470 protected boolean shouldDrawChild(View child) { 471 final CellLayout cl = (CellLayout) child; 472 return super.shouldDrawChild(child) && 473 (cl.getShortcutsAndWidgets().getAlpha() > 0 || 474 cl.getBackgroundAlpha() > 0); 475 } 476 477 /** 478 * @return The open folder on the current screen, or null if there is none 479 */ 480 Folder getOpenFolder() { 481 DragLayer dragLayer = mLauncher.getDragLayer(); 482 int count = dragLayer.getChildCount(); 483 for (int i = 0; i < count; i++) { 484 View child = dragLayer.getChildAt(i); 485 if (child instanceof Folder) { 486 Folder folder = (Folder) child; 487 if (folder.getInfo().opened) 488 return folder; 489 } 490 } 491 return null; 492 } 493 494 boolean isTouchActive() { 495 return mTouchState != TOUCH_STATE_REST; 496 } 497 498 public long insertNewWorkspaceScreen(long screenId) { 499 return insertNewWorkspaceScreen(screenId, getChildCount(), true); 500 } 501 502 public long insertNewWorkspaceScreenBeforeEmptyScreen(long screenId, boolean updateDb) { 503 // Find the index to insert this view into. If the empty screen exists, then 504 // insert it before that. 505 int insertIndex = mScreenOrder.indexOf(EXTRA_EMPTY_SCREEN_ID); 506 if (insertIndex < 0) { 507 insertIndex = mScreenOrder.size(); 508 } 509 return insertNewWorkspaceScreen(screenId, insertIndex, updateDb); 510 } 511 512 public long insertNewWorkspaceScreen(long screenId, boolean updateDb) { 513 return insertNewWorkspaceScreen(screenId, getChildCount(), updateDb); 514 } 515 516 public long insertNewWorkspaceScreen(long screenId, int insertIndex, boolean updateDb) { 517 CellLayout newScreen = (CellLayout) 518 mLauncher.getLayoutInflater().inflate(R.layout.workspace_screen, null); 519 520 newScreen.setOnLongClickListener(mLongClickListener); 521 mWorkspaceScreens.put(screenId, newScreen); 522 mScreenOrder.add(insertIndex, screenId); 523 addView(newScreen, insertIndex); 524 if (updateDb) { 525 // On bind we don't need to update the screens in the database. 526 mLauncher.getModel().updateWorkspaceScreenOrder(mLauncher, mScreenOrder); 527 } 528 return screenId; 529 } 530 531 public void addCustomContentToLeft(View customContent, CustomContentCallbacks callbacks) { 532 CellLayout customScreen = (CellLayout) 533 mLauncher.getLayoutInflater().inflate(R.layout.workspace_screen, null); 534 535 int spanX = customScreen.getCountX(); 536 int spanY = customScreen.getCountY(); 537 538 CellLayout.LayoutParams lp = new CellLayout.LayoutParams(0, 0, spanX, spanY); 539 lp.canReorder = false; 540 lp.isFullscreen = true; 541 542 customScreen.addViewToCellLayout(customContent, 0, 0, lp, true); 543 544 Rect p = new Rect(); 545 AppWidgetHostView.getDefaultPaddingForWidget(mLauncher, mLauncher.getComponentName(), p); 546 547 mWorkspaceScreens.put(CUSTOM_CONTENT_SCREEN_ID, customScreen); 548 mScreenOrder.add(0, CUSTOM_CONTENT_SCREEN_ID); 549 550 addFullScreenPage(customScreen); 551 552 mCustomContentCallbacks = callbacks; 553 554 // Ensure that the current page and default page are maintained. 555 mDefaultPage++; 556 setCurrentPage(getCurrentPage() + 1); 557 } 558 559 public long commitExtraEmptyScreen() { 560 CellLayout cl = mWorkspaceScreens.get(EXTRA_EMPTY_SCREEN_ID); 561 mWorkspaceScreens.remove(EXTRA_EMPTY_SCREEN_ID); 562 mScreenOrder.remove(EXTRA_EMPTY_SCREEN_ID); 563 564 long newId = LauncherAppState.getInstance().getLauncherProvider().generateNewScreenId(); 565 mWorkspaceScreens.put(newId, cl); 566 mScreenOrder.add(newId); 567 568 addExtraEmptyScreen(); 569 570 // Update the model for the new screen 571 mLauncher.getModel().updateWorkspaceScreenOrder(mLauncher, mScreenOrder); 572 573 return newId; 574 } 575 576 public void addExtraEmptyScreen() { 577 insertNewWorkspaceScreen(EXTRA_EMPTY_SCREEN_ID, false); 578 } 579 580 public CellLayout getScreenWithId(long screenId) { 581 CellLayout layout = mWorkspaceScreens.get(screenId); 582 return layout; 583 } 584 585 public long getIdForScreen(CellLayout layout) { 586 Iterator<Long> iter = mWorkspaceScreens.keySet().iterator(); 587 while (iter.hasNext()) { 588 long id = iter.next(); 589 if (mWorkspaceScreens.get(id) == layout) { 590 return id; 591 } 592 } 593 return -1; 594 } 595 596 public int getPageIndexForScreenId(long screenId) { 597 return indexOfChild(mWorkspaceScreens.get(screenId)); 598 } 599 600 public long getScreenIdForPageIndex(int index) { 601 return mScreenOrder.get(index); 602 } 603 604 ArrayList<Long> getScreenOrder() { 605 return mScreenOrder; 606 } 607 608 public void stripEmptyScreens() { 609 if (isPageMoving()) { 610 mStripScreensOnPageStopMoving = true; 611 return; 612 } 613 614 int currentPage = getNextPage(); 615 ArrayList<Long> removeScreens = new ArrayList<Long>(); 616 for (Long id: mWorkspaceScreens.keySet()) { 617 CellLayout cl = mWorkspaceScreens.get(id); 618 if (id >= 0 && cl.getShortcutsAndWidgets().getChildCount() == 0) { 619 removeScreens.add(id); 620 } 621 } 622 623 int pageShift = 0; 624 for (Long id: removeScreens) { 625 CellLayout cl = mWorkspaceScreens.get(id); 626 mWorkspaceScreens.remove(id); 627 mScreenOrder.remove(id); 628 if (indexOfChild(cl) < currentPage) { 629 pageShift++; 630 } 631 removeView(cl); 632 } 633 634 if (!removeScreens.isEmpty()) { 635 // Update the model if we have changed any screens 636 mLauncher.getModel().updateWorkspaceScreenOrder(mLauncher, mScreenOrder); 637 } 638 639 if (pageShift >= 0) { 640 setCurrentPage(currentPage - pageShift); 641 } 642 } 643 644 // See implementation for parameter definition. 645 void addInScreen(View child, long container, long screenId, 646 int x, int y, int spanX, int spanY) { 647 addInScreen(child, container, screenId, x, y, spanX, spanY, false, false); 648 } 649 650 // At bind time, we use the rank (screenId) to compute x and y for hotseat items. 651 // See implementation for parameter definition. 652 void addInScreenFromBind(View child, long container, long screenId, int x, int y, 653 int spanX, int spanY) { 654 addInScreen(child, container, screenId, x, y, spanX, spanY, false, true); 655 } 656 657 // See implementation for parameter definition. 658 void addInScreen(View child, long container, long screenId, int x, int y, int spanX, int spanY, 659 boolean insert) { 660 addInScreen(child, container, screenId, x, y, spanX, spanY, insert, false); 661 } 662 663 /** 664 * Adds the specified child in the specified screen. The position and dimension of 665 * the child are defined by x, y, spanX and spanY. 666 * 667 * @param child The child to add in one of the workspace's screens. 668 * @param screenId The screen in which to add the child. 669 * @param x The X position of the child in the screen's grid. 670 * @param y The Y position of the child in the screen's grid. 671 * @param spanX The number of cells spanned horizontally by the child. 672 * @param spanY The number of cells spanned vertically by the child. 673 * @param insert When true, the child is inserted at the beginning of the children list. 674 * @param computeXYFromRank When true, we use the rank (stored in screenId) to compute 675 * the x and y position in which to place hotseat items. Otherwise 676 * we use the x and y position to compute the rank. 677 */ 678 void addInScreen(View child, long container, long screenId, int x, int y, int spanX, int spanY, 679 boolean insert, boolean computeXYFromRank) { 680 if (container == LauncherSettings.Favorites.CONTAINER_DESKTOP) { 681 if (getScreenWithId(screenId) == null) { 682 Log.e(TAG, "Skipping child, screenId " + screenId + " not found"); 683 return; 684 } 685 } 686 if (screenId == EXTRA_EMPTY_SCREEN_ID) { 687 // This should never happen 688 throw new RuntimeException("Screen id should not be EXTRA_EMPTY_SCREEN_ID"); 689 } 690 691 final CellLayout layout; 692 if (container == LauncherSettings.Favorites.CONTAINER_HOTSEAT) { 693 layout = mLauncher.getHotseat().getLayout(); 694 child.setOnKeyListener(null); 695 696 // Hide folder title in the hotseat 697 if (child instanceof FolderIcon) { 698 ((FolderIcon) child).setTextVisible(false); 699 } 700 701 if (computeXYFromRank) { 702 x = mLauncher.getHotseat().getCellXFromOrder((int) screenId); 703 y = mLauncher.getHotseat().getCellYFromOrder((int) screenId); 704 } else { 705 screenId = mLauncher.getHotseat().getOrderInHotseat(x, y); 706 } 707 } else { 708 // Show folder title if not in the hotseat 709 if (child instanceof FolderIcon) { 710 ((FolderIcon) child).setTextVisible(true); 711 } 712 layout = getScreenWithId(screenId); 713 child.setOnKeyListener(new IconKeyEventListener()); 714 } 715 716 ViewGroup.LayoutParams genericLp = child.getLayoutParams(); 717 CellLayout.LayoutParams lp; 718 if (genericLp == null || !(genericLp instanceof CellLayout.LayoutParams)) { 719 lp = new CellLayout.LayoutParams(x, y, spanX, spanY); 720 } else { 721 lp = (CellLayout.LayoutParams) genericLp; 722 lp.cellX = x; 723 lp.cellY = y; 724 lp.cellHSpan = spanX; 725 lp.cellVSpan = spanY; 726 } 727 728 if (spanX < 0 && spanY < 0) { 729 lp.isLockedToGrid = false; 730 } 731 732 // Get the canonical child id to uniquely represent this view in this screen 733 int childId = LauncherModel.getCellLayoutChildId(container, screenId, x, y, spanX, spanY); 734 boolean markCellsAsOccupied = !(child instanceof Folder); 735 if (!layout.addViewToCellLayout(child, insert ? 0 : -1, childId, lp, markCellsAsOccupied)) { 736 // TODO: This branch occurs when the workspace is adding views 737 // outside of the defined grid 738 // maybe we should be deleting these items from the LauncherModel? 739 Log.w(TAG, "Failed to add to item at (" + lp.cellX + "," + lp.cellY + ") to CellLayout"); 740 } 741 742 if (!(child instanceof Folder)) { 743 child.setHapticFeedbackEnabled(false); 744 child.setOnLongClickListener(mLongClickListener); 745 } 746 if (child instanceof DropTarget) { 747 mDragController.addDropTarget((DropTarget) child); 748 } 749 } 750 751 /** 752 * Called directly from a CellLayout (not by the framework), after we've been added as a 753 * listener via setOnInterceptTouchEventListener(). This allows us to tell the CellLayout 754 * that it should intercept touch events, which is not something that is normally supported. 755 */ 756 @Override 757 public boolean onTouch(View v, MotionEvent event) { 758 return (isSmall() || !isFinishedSwitchingState()); 759 } 760 761 public boolean isSwitchingState() { 762 return mIsSwitchingState; 763 } 764 765 /** This differs from isSwitchingState in that we take into account how far the transition 766 * has completed. */ 767 public boolean isFinishedSwitchingState() { 768 return !mIsSwitchingState || (mTransitionProgress > 0.5f); 769 } 770 771 protected void onWindowVisibilityChanged (int visibility) { 772 mLauncher.onWindowVisibilityChanged(visibility); 773 if (mCustomContentShowing && mCustomContentCallbacks != null) { 774 if (visibility == View.VISIBLE) { 775 mCustomContentCallbacks.onShow(); 776 } else if (visibility == View.GONE) { 777 mCustomContentCallbacks.onHide(); 778 } 779 } 780 } 781 782 @Override 783 public boolean dispatchUnhandledMove(View focused, int direction) { 784 if (isSmall() || !isFinishedSwitchingState()) { 785 // when the home screens are shrunken, shouldn't allow side-scrolling 786 return false; 787 } 788 return super.dispatchUnhandledMove(focused, direction); 789 } 790 791 @Override 792 public boolean onInterceptTouchEvent(MotionEvent ev) { 793 switch (ev.getAction() & MotionEvent.ACTION_MASK) { 794 case MotionEvent.ACTION_DOWN: 795 mXDown = ev.getX(); 796 mYDown = ev.getY(); 797 break; 798 case MotionEvent.ACTION_POINTER_UP: 799 case MotionEvent.ACTION_UP: 800 if (mTouchState == TOUCH_STATE_REST) { 801 final CellLayout currentPage = (CellLayout) getChildAt(mCurrentPage); 802 if (!currentPage.lastDownOnOccupiedCell()) { 803 onWallpaperTap(ev); 804 } 805 } 806 } 807 808 if (mLauncher != null && mLauncher.onTouch(this, ev)) { 809 return true; 810 } 811 812 return super.onInterceptTouchEvent(ev); 813 } 814 815 protected void reinflateWidgetsIfNecessary() { 816 final int clCount = getChildCount(); 817 for (int i = 0; i < clCount; i++) { 818 CellLayout cl = (CellLayout) getChildAt(i); 819 ShortcutAndWidgetContainer swc = cl.getShortcutsAndWidgets(); 820 final int itemCount = swc.getChildCount(); 821 for (int j = 0; j < itemCount; j++) { 822 View v = swc.getChildAt(j); 823 824 if (v.getTag() instanceof LauncherAppWidgetInfo) { 825 LauncherAppWidgetInfo info = (LauncherAppWidgetInfo) v.getTag(); 826 LauncherAppWidgetHostView lahv = (LauncherAppWidgetHostView) info.hostView; 827 if (lahv != null && lahv.orientationChangedSincedInflation()) { 828 mLauncher.removeAppWidget(info); 829 // Remove the current widget which is inflated with the wrong orientation 830 cl.removeView(lahv); 831 mLauncher.bindAppWidget(info); 832 } 833 } 834 } 835 } 836 } 837 838 @Override 839 protected void determineScrollingStart(MotionEvent ev) { 840 if (isSmall()) return; 841 if (!isFinishedSwitchingState()) return; 842 843 float deltaX = Math.abs(ev.getX() - mXDown); 844 float deltaY = Math.abs(ev.getY() - mYDown); 845 846 if (Float.compare(deltaX, 0f) == 0) return; 847 848 float slope = deltaY / deltaX; 849 float theta = (float) Math.atan(slope); 850 851 if (deltaX > mTouchSlop || deltaY > mTouchSlop) { 852 cancelCurrentPageLongPress(); 853 } 854 855 if (theta > MAX_SWIPE_ANGLE) { 856 // Above MAX_SWIPE_ANGLE, we don't want to ever start scrolling the workspace 857 return; 858 } else if (theta > START_DAMPING_TOUCH_SLOP_ANGLE) { 859 // Above START_DAMPING_TOUCH_SLOP_ANGLE and below MAX_SWIPE_ANGLE, we want to 860 // increase the touch slop to make it harder to begin scrolling the workspace. This 861 // results in vertically scrolling widgets to more easily. The higher the angle, the 862 // more we increase touch slop. 863 theta -= START_DAMPING_TOUCH_SLOP_ANGLE; 864 float extraRatio = (float) 865 Math.sqrt((theta / (MAX_SWIPE_ANGLE - START_DAMPING_TOUCH_SLOP_ANGLE))); 866 super.determineScrollingStart(ev, 1 + TOUCH_SLOP_DAMPING_FACTOR * extraRatio); 867 } else { 868 // Below START_DAMPING_TOUCH_SLOP_ANGLE, we don't do anything special 869 super.determineScrollingStart(ev); 870 } 871 } 872 873 protected void onPageBeginMoving() { 874 super.onPageBeginMoving(); 875 876 if (isHardwareAccelerated()) { 877 updateChildrenLayersEnabled(false); 878 } else { 879 if (mNextPage != INVALID_PAGE) { 880 // we're snapping to a particular screen 881 enableChildrenCache(mCurrentPage, mNextPage); 882 } else { 883 // this is when user is actively dragging a particular screen, they might 884 // swipe it either left or right (but we won't advance by more than one screen) 885 enableChildrenCache(mCurrentPage - 1, mCurrentPage + 1); 886 } 887 } 888 889 // Only show page outlines as we pan if we are on large screen 890 if (LauncherAppState.getInstance().isScreenLarge()) { 891 showOutlines(); 892 mIsStaticWallpaper = mWallpaperManager.getWallpaperInfo() == null; 893 } 894 895 // If we are not fading in adjacent screens, we still need to restore the alpha in case the 896 // user scrolls while we are transitioning (should not affect dispatchDraw optimizations) 897 if (!mWorkspaceFadeInAdjacentScreens) { 898 for (int i = 0; i < getChildCount(); ++i) { 899 ((CellLayout) getPageAt(i)).setShortcutAndWidgetAlpha(1f); 900 } 901 } 902 } 903 904 protected void onPageEndMoving() { 905 super.onPageEndMoving(); 906 907 if (isHardwareAccelerated()) { 908 updateChildrenLayersEnabled(false); 909 } else { 910 clearChildrenCache(); 911 } 912 913 914 if (mDragController.isDragging()) { 915 if (isSmall()) { 916 // If we are in springloaded mode, then force an event to check if the current touch 917 // is under a new page (to scroll to) 918 mDragController.forceTouchMove(); 919 } 920 } else { 921 // If we are not mid-dragging, hide the page outlines if we are on a large screen 922 if (LauncherAppState.getInstance().isScreenLarge()) { 923 hideOutlines(); 924 } 925 } 926 927 if (mDelayedResizeRunnable != null) { 928 mDelayedResizeRunnable.run(); 929 mDelayedResizeRunnable = null; 930 } 931 932 if (mDelayedSnapToPageRunnable != null) { 933 mDelayedSnapToPageRunnable.run(); 934 mDelayedSnapToPageRunnable = null; 935 } 936 if (mStripScreensOnPageStopMoving) { 937 stripEmptyScreens(); 938 mStripScreensOnPageStopMoving = false; 939 } 940 941 if (hasCustomContent() && getNextPage() == 0 && !mCustomContentShowing) { 942 mCustomContentShowing = true; 943 if (mCustomContentCallbacks != null) { 944 mCustomContentCallbacks.onShow(); 945 } 946 } else if (hasCustomContent() && getNextPage() != 0 && mCustomContentShowing) { 947 mCustomContentShowing = false; 948 if (mCustomContentCallbacks != null) { 949 mCustomContentCallbacks.onHide(); 950 mLauncher.resetQSBScroll(); 951 } 952 } 953 } 954 955 @Override 956 protected void notifyPageSwitchListener() { 957 super.notifyPageSwitchListener(); 958 Launcher.setScreen(mCurrentPage); 959 }; 960 961 // As a ratio of screen height, the total distance we want the parallax effect to span 962 // horizontally 963 private float wallpaperTravelToScreenWidthRatio(int width, int height) { 964 float aspectRatio = width / (float) height; 965 966 // At an aspect ratio of 16/10, the wallpaper parallax effect should span 1.5 * screen width 967 // At an aspect ratio of 10/16, the wallpaper parallax effect should span 1.2 * screen width 968 // We will use these two data points to extrapolate how much the wallpaper parallax effect 969 // to span (ie travel) at any aspect ratio: 970 971 final float ASPECT_RATIO_LANDSCAPE = 16/10f; 972 final float ASPECT_RATIO_PORTRAIT = 10/16f; 973 final float WALLPAPER_WIDTH_TO_SCREEN_RATIO_LANDSCAPE = 1.5f; 974 final float WALLPAPER_WIDTH_TO_SCREEN_RATIO_PORTRAIT = 1.2f; 975 976 // To find out the desired width at different aspect ratios, we use the following two 977 // formulas, where the coefficient on x is the aspect ratio (width/height): 978 // (16/10)x + y = 1.5 979 // (10/16)x + y = 1.2 980 // We solve for x and y and end up with a final formula: 981 final float x = 982 (WALLPAPER_WIDTH_TO_SCREEN_RATIO_LANDSCAPE - WALLPAPER_WIDTH_TO_SCREEN_RATIO_PORTRAIT) / 983 (ASPECT_RATIO_LANDSCAPE - ASPECT_RATIO_PORTRAIT); 984 final float y = WALLPAPER_WIDTH_TO_SCREEN_RATIO_PORTRAIT - x * ASPECT_RATIO_PORTRAIT; 985 return x * aspectRatio + y; 986 } 987 988 protected void setWallpaperDimension() { 989 Point minDims = new Point(); 990 Point maxDims = new Point(); 991 mLauncher.getWindowManager().getDefaultDisplay().getCurrentSizeRange(minDims, maxDims); 992 993 final int maxDim = Math.max(maxDims.x, maxDims.y); 994 final int minDim = Math.min(minDims.x, minDims.y); 995 996 // We need to ensure that there is enough extra space in the wallpaper for the intended 997 // parallax effects 998 if (LauncherAppState.getInstance().isScreenLarge()) { 999 mWallpaperWidth = (int) (maxDim * wallpaperTravelToScreenWidthRatio(maxDim, minDim)); 1000 mWallpaperHeight = maxDim; 1001 } else { 1002 mWallpaperWidth = Math.max((int) (minDim * WALLPAPER_SCREENS_SPAN), maxDim); 1003 mWallpaperHeight = maxDim; 1004 } 1005 new Thread("setWallpaperDimension") { 1006 public void run() { 1007 mWallpaperManager.suggestDesiredDimensions(mWallpaperWidth, mWallpaperHeight); 1008 } 1009 }.start(); 1010 } 1011 1012 private void syncWallpaperOffsetWithScroll() { 1013 final boolean enableWallpaperEffects = isHardwareAccelerated(); 1014 if (enableWallpaperEffects) { 1015 // TODO: figure out what to do about parallax, for now disable it 1016 //mWallpaperOffset.setFinalX(wallpaperOffsetForCurrentScroll()); 1017 } 1018 } 1019 1020 public void updateWallpaperOffsetImmediately() { 1021 mUpdateWallpaperOffsetImmediately = true; 1022 } 1023 1024 private void updateWallpaperOffsets() { 1025 boolean updateNow = false; 1026 boolean keepUpdating = true; 1027 if (mUpdateWallpaperOffsetImmediately) { 1028 updateNow = true; 1029 keepUpdating = false; 1030 mWallpaperOffset.jumpToFinal(); 1031 mUpdateWallpaperOffsetImmediately = false; 1032 } else { 1033 updateNow = keepUpdating = mWallpaperOffset.computeScrollOffset(); 1034 } 1035 if (updateNow) { 1036 if (mWindowToken != null) { 1037 mWallpaperManager.setWallpaperOffsets(mWindowToken, 1038 mWallpaperOffset.getCurrX(), mWallpaperOffset.getCurrY()); 1039 } 1040 } 1041 if (keepUpdating) { 1042 invalidate(); 1043 } 1044 } 1045 1046 protected void snapToPage(int whichPage, Runnable r) { 1047 if (mDelayedSnapToPageRunnable != null) { 1048 mDelayedSnapToPageRunnable.run(); 1049 } 1050 mDelayedSnapToPageRunnable = r; 1051 snapToPage(whichPage, SLOW_PAGE_SNAP_ANIMATION_DURATION); 1052 } 1053 1054 protected void snapToScreenId(long screenId, Runnable r) { 1055 snapToPage(getPageIndexForScreenId(screenId), r); 1056 } 1057 1058 class WallpaperOffsetInterpolator { 1059 float mFinalHorizontalWallpaperOffset = 0.0f; 1060 float mFinalVerticalWallpaperOffset = 0.5f; 1061 float mHorizontalWallpaperOffset = 0.0f; 1062 float mVerticalWallpaperOffset = 0.5f; 1063 long mLastWallpaperOffsetUpdateTime; 1064 boolean mIsMovingFast; 1065 boolean mOverrideHorizontalCatchupConstant; 1066 float mHorizontalCatchupConstant = 0.35f; 1067 float mVerticalCatchupConstant = 0.35f; 1068 1069 public WallpaperOffsetInterpolator() { 1070 } 1071 1072 public void setOverrideHorizontalCatchupConstant(boolean override) { 1073 mOverrideHorizontalCatchupConstant = override; 1074 } 1075 1076 public void setHorizontalCatchupConstant(float f) { 1077 mHorizontalCatchupConstant = f; 1078 } 1079 1080 public void setVerticalCatchupConstant(float f) { 1081 mVerticalCatchupConstant = f; 1082 } 1083 1084 public boolean computeScrollOffset() { 1085 if (Float.compare(mHorizontalWallpaperOffset, mFinalHorizontalWallpaperOffset) == 0 && 1086 Float.compare(mVerticalWallpaperOffset, mFinalVerticalWallpaperOffset) == 0) { 1087 mIsMovingFast = false; 1088 return false; 1089 } 1090 boolean isLandscape = mDisplaySize.x > mDisplaySize.y; 1091 1092 long currentTime = System.currentTimeMillis(); 1093 long timeSinceLastUpdate = currentTime - mLastWallpaperOffsetUpdateTime; 1094 timeSinceLastUpdate = Math.min((long) (1000/30f), timeSinceLastUpdate); 1095 timeSinceLastUpdate = Math.max(1L, timeSinceLastUpdate); 1096 1097 float xdiff = Math.abs(mFinalHorizontalWallpaperOffset - mHorizontalWallpaperOffset); 1098 if (!mIsMovingFast && xdiff > 0.07) { 1099 mIsMovingFast = true; 1100 } 1101 1102 float fractionToCatchUpIn1MsHorizontal; 1103 if (mOverrideHorizontalCatchupConstant) { 1104 fractionToCatchUpIn1MsHorizontal = mHorizontalCatchupConstant; 1105 } else if (mIsMovingFast) { 1106 fractionToCatchUpIn1MsHorizontal = isLandscape ? 0.5f : 0.75f; 1107 } else { 1108 // slow 1109 fractionToCatchUpIn1MsHorizontal = isLandscape ? 0.27f : 0.5f; 1110 } 1111 float fractionToCatchUpIn1MsVertical = mVerticalCatchupConstant; 1112 1113 fractionToCatchUpIn1MsHorizontal /= 33f; 1114 fractionToCatchUpIn1MsVertical /= 33f; 1115 1116 final float UPDATE_THRESHOLD = 0.00001f; 1117 float hOffsetDelta = mFinalHorizontalWallpaperOffset - mHorizontalWallpaperOffset; 1118 float vOffsetDelta = mFinalVerticalWallpaperOffset - mVerticalWallpaperOffset; 1119 boolean jumpToFinalValue = Math.abs(hOffsetDelta) < UPDATE_THRESHOLD && 1120 Math.abs(vOffsetDelta) < UPDATE_THRESHOLD; 1121 1122 // Don't have any lag between workspace and wallpaper on non-large devices 1123 if (!LauncherAppState.getInstance().isScreenLarge() || jumpToFinalValue) { 1124 mHorizontalWallpaperOffset = mFinalHorizontalWallpaperOffset; 1125 mVerticalWallpaperOffset = mFinalVerticalWallpaperOffset; 1126 } else { 1127 float percentToCatchUpVertical = 1128 Math.min(1.0f, timeSinceLastUpdate * fractionToCatchUpIn1MsVertical); 1129 float percentToCatchUpHorizontal = 1130 Math.min(1.0f, timeSinceLastUpdate * fractionToCatchUpIn1MsHorizontal); 1131 mHorizontalWallpaperOffset += percentToCatchUpHorizontal * hOffsetDelta; 1132 mVerticalWallpaperOffset += percentToCatchUpVertical * vOffsetDelta; 1133 } 1134 1135 mLastWallpaperOffsetUpdateTime = System.currentTimeMillis(); 1136 return true; 1137 } 1138 1139 public float getCurrX() { 1140 return mHorizontalWallpaperOffset; 1141 } 1142 1143 public float getFinalX() { 1144 return mFinalHorizontalWallpaperOffset; 1145 } 1146 1147 public float getCurrY() { 1148 return mVerticalWallpaperOffset; 1149 } 1150 1151 public float getFinalY() { 1152 return mFinalVerticalWallpaperOffset; 1153 } 1154 1155 public void setFinalX(float x) { 1156 mFinalHorizontalWallpaperOffset = Math.max(0f, Math.min(x, 1.0f)); 1157 } 1158 1159 public void setFinalY(float y) { 1160 mFinalVerticalWallpaperOffset = Math.max(0f, Math.min(y, 1.0f)); 1161 } 1162 1163 public void jumpToFinal() { 1164 mHorizontalWallpaperOffset = mFinalHorizontalWallpaperOffset; 1165 mVerticalWallpaperOffset = mFinalVerticalWallpaperOffset; 1166 } 1167 } 1168 1169 @Override 1170 public void computeScroll() { 1171 super.computeScroll(); 1172 syncWallpaperOffsetWithScroll(); 1173 } 1174 1175 void showOutlines() { 1176 if (!isSmall() && !mIsSwitchingState) { 1177 if (mChildrenOutlineFadeOutAnimation != null) mChildrenOutlineFadeOutAnimation.cancel(); 1178 if (mChildrenOutlineFadeInAnimation != null) mChildrenOutlineFadeInAnimation.cancel(); 1179 mChildrenOutlineFadeInAnimation = LauncherAnimUtils.ofFloat(this, "childrenOutlineAlpha", 1.0f); 1180 mChildrenOutlineFadeInAnimation.setDuration(CHILDREN_OUTLINE_FADE_IN_DURATION); 1181 mChildrenOutlineFadeInAnimation.start(); 1182 } 1183 } 1184 1185 void hideOutlines() { 1186 if (!isSmall() && !mIsSwitchingState) { 1187 if (mChildrenOutlineFadeInAnimation != null) mChildrenOutlineFadeInAnimation.cancel(); 1188 if (mChildrenOutlineFadeOutAnimation != null) mChildrenOutlineFadeOutAnimation.cancel(); 1189 mChildrenOutlineFadeOutAnimation = LauncherAnimUtils.ofFloat(this, "childrenOutlineAlpha", 0.0f); 1190 mChildrenOutlineFadeOutAnimation.setDuration(CHILDREN_OUTLINE_FADE_OUT_DURATION); 1191 mChildrenOutlineFadeOutAnimation.setStartDelay(CHILDREN_OUTLINE_FADE_OUT_DELAY); 1192 mChildrenOutlineFadeOutAnimation.start(); 1193 } 1194 } 1195 1196 public void showOutlinesTemporarily() { 1197 if (!mIsPageMoving && !isTouchActive()) { 1198 snapToPage(mCurrentPage); 1199 } 1200 } 1201 1202 public void setChildrenOutlineAlpha(float alpha) { 1203 mChildrenOutlineAlpha = alpha; 1204 for (int i = 0; i < getChildCount(); i++) { 1205 CellLayout cl = (CellLayout) getChildAt(i); 1206 cl.setBackgroundAlpha(alpha); 1207 } 1208 } 1209 1210 public float getChildrenOutlineAlpha() { 1211 return mChildrenOutlineAlpha; 1212 } 1213 1214 void disableBackground() { 1215 mDrawBackground = false; 1216 } 1217 void enableBackground() { 1218 mDrawBackground = true; 1219 } 1220 1221 private void animateBackgroundGradient(float finalAlpha, boolean animated) { 1222 if (mBackground == null) return; 1223 if (mBackgroundFadeInAnimation != null) { 1224 mBackgroundFadeInAnimation.cancel(); 1225 mBackgroundFadeInAnimation = null; 1226 } 1227 if (mBackgroundFadeOutAnimation != null) { 1228 mBackgroundFadeOutAnimation.cancel(); 1229 mBackgroundFadeOutAnimation = null; 1230 } 1231 float startAlpha = getBackgroundAlpha(); 1232 if (finalAlpha != startAlpha) { 1233 if (animated) { 1234 mBackgroundFadeOutAnimation = 1235 LauncherAnimUtils.ofFloat(this, startAlpha, finalAlpha); 1236 mBackgroundFadeOutAnimation.addUpdateListener(new AnimatorUpdateListener() { 1237 public void onAnimationUpdate(ValueAnimator animation) { 1238 setBackgroundAlpha(((Float) animation.getAnimatedValue()).floatValue()); 1239 } 1240 }); 1241 mBackgroundFadeOutAnimation.setInterpolator(new DecelerateInterpolator(1.5f)); 1242 mBackgroundFadeOutAnimation.setDuration(BACKGROUND_FADE_OUT_DURATION); 1243 mBackgroundFadeOutAnimation.start(); 1244 } else { 1245 setBackgroundAlpha(finalAlpha); 1246 } 1247 } 1248 } 1249 1250 public void setBackgroundAlpha(float alpha) { 1251 if (alpha != mBackgroundAlpha) { 1252 mBackgroundAlpha = alpha; 1253 invalidate(); 1254 } 1255 } 1256 1257 public float getBackgroundAlpha() { 1258 return mBackgroundAlpha; 1259 } 1260 1261 float backgroundAlphaInterpolator(float r) { 1262 float pivotA = 0.1f; 1263 float pivotB = 0.4f; 1264 if (r < pivotA) { 1265 return 0; 1266 } else if (r > pivotB) { 1267 return 1.0f; 1268 } else { 1269 return (r - pivotA)/(pivotB - pivotA); 1270 } 1271 } 1272 1273 private void updatePageAlphaValues(int screenCenter) { 1274 boolean isInOverscroll = mOverScrollX < 0 || mOverScrollX > mMaxScrollX; 1275 if (mWorkspaceFadeInAdjacentScreens && 1276 mState == State.NORMAL && 1277 !mIsSwitchingState && 1278 !isInOverscroll) { 1279 for (int i = 0; i < getChildCount(); i++) { 1280 CellLayout child = (CellLayout) getChildAt(i); 1281 if (child != null) { 1282 float scrollProgress = getScrollProgress(screenCenter, child, i); 1283 float alpha = 1 - Math.abs(scrollProgress); 1284 child.getShortcutsAndWidgets().setAlpha(alpha); 1285 if (!mIsDragOccuring) { 1286 child.setBackgroundAlphaMultiplier( 1287 backgroundAlphaInterpolator(Math.abs(scrollProgress))); 1288 } else { 1289 child.setBackgroundAlphaMultiplier(1f); 1290 } 1291 } 1292 } 1293 } 1294 } 1295 1296 private void setChildrenBackgroundAlphaMultipliers(float a) { 1297 for (int i = 0; i < getChildCount(); i++) { 1298 CellLayout child = (CellLayout) getChildAt(i); 1299 child.setBackgroundAlphaMultiplier(a); 1300 } 1301 } 1302 1303 private boolean hasCustomContent() { 1304 return (mScreenOrder.size() > 0 && mScreenOrder.get(0) == CUSTOM_CONTENT_SCREEN_ID); 1305 } 1306 1307 public boolean isOnOrMovingToCustomContent() { 1308 return hasCustomContent() && getNextPage() == 0; 1309 } 1310 1311 private void updateStateForCustomContent(int screenCenter) { 1312 if (hasCustomContent()) { 1313 int index = mScreenOrder.indexOf(CUSTOM_CONTENT_SCREEN_ID); 1314 1315 int scrollDelta = getScrollForPage(index + 1) - getScrollX(); 1316 1317 float progress = (1.0f * scrollDelta) / 1318 (getScrollForPage(index + 1) - getScrollForPage(index)); 1319 progress = Math.max(0, progress); 1320 1321 setBackgroundAlpha(progress * 0.8f); 1322 float transY = progress * (getViewportHeight() - getPageIndicator().getTop()); 1323 1324 if (mLauncher.getHotseat() != null) { 1325 mLauncher.getHotseat().setTranslationY(transY); 1326 mLauncher.getHotseat().setAlpha(1 - progress); 1327 } 1328 if (getPageIndicator() != null) { 1329 getPageIndicator().setAlpha(1 - progress); 1330 } 1331 } 1332 } 1333 1334 @Override 1335 protected void screenScrolled(int screenCenter) { 1336 final boolean isRtl = isLayoutRtl(); 1337 super.screenScrolled(screenCenter); 1338 1339 updatePageAlphaValues(screenCenter); 1340 updateStateForCustomContent(screenCenter); 1341 enableHwLayersOnVisiblePages(); 1342 1343 if ((mOverScrollX < 0 && !hasCustomContent()) || mOverScrollX > mMaxScrollX) { 1344 int index = 0; 1345 float pivotX = 0f; 1346 final float leftBiasedPivot = 0.25f; 1347 final float rightBiasedPivot = 0.75f; 1348 final int lowerIndex = 0; 1349 final int upperIndex = getChildCount() - 1; 1350 if (isRtl) { 1351 index = mOverScrollX < 0 ? upperIndex : lowerIndex; 1352 pivotX = (index == 0 ? leftBiasedPivot : rightBiasedPivot); 1353 } else { 1354 index = mOverScrollX < 0 ? lowerIndex : upperIndex; 1355 pivotX = (index == 0 ? rightBiasedPivot : leftBiasedPivot); 1356 } 1357 1358 CellLayout cl = (CellLayout) getChildAt(index); 1359 float scrollProgress = getScrollProgress(screenCenter, cl, index); 1360 final boolean isLeftPage = (isRtl ? index > 0 : index == 0); 1361 cl.setOverScrollAmount(Math.abs(scrollProgress), isLeftPage); 1362 float rotation = -WORKSPACE_OVERSCROLL_ROTATION * scrollProgress; 1363 cl.setRotationY(rotation); 1364 setFadeForOverScroll(Math.abs(scrollProgress)); 1365 if (!mOverscrollTransformsSet) { 1366 mOverscrollTransformsSet = true; 1367 cl.setCameraDistance(mDensity * mCameraDistance); 1368 cl.setPivotX(cl.getMeasuredWidth() * pivotX); 1369 cl.setPivotY(cl.getMeasuredHeight() * 0.5f); 1370 cl.setOverscrollTransformsDirty(true); 1371 } 1372 } else { 1373 if (mOverscrollFade != 0) { 1374 setFadeForOverScroll(0); 1375 } 1376 if (mOverscrollTransformsSet) { 1377 mOverscrollTransformsSet = false; 1378 ((CellLayout) getChildAt(0)).resetOverscrollTransforms(); 1379 ((CellLayout) getChildAt(getChildCount() - 1)).resetOverscrollTransforms(); 1380 } 1381 } 1382 } 1383 1384 @Override 1385 protected void overScroll(float amount) { 1386 acceleratedOverScroll(amount); 1387 } 1388 1389 protected void onAttachedToWindow() { 1390 super.onAttachedToWindow(); 1391 mWindowToken = getWindowToken(); 1392 computeScroll(); 1393 mDragController.setWindowToken(mWindowToken); 1394 } 1395 1396 protected void onDetachedFromWindow() { 1397 mWindowToken = null; 1398 } 1399 1400 @Override 1401 protected void onLayout(boolean changed, int left, int top, int right, int bottom) { 1402 if (mFirstLayout && mCurrentPage >= 0 && mCurrentPage < getChildCount()) { 1403 mUpdateWallpaperOffsetImmediately = true; 1404 } 1405 super.onLayout(changed, left, top, right, bottom); 1406 } 1407 1408 @Override 1409 protected void onDraw(Canvas canvas) { 1410 updateWallpaperOffsets(); 1411 1412 // Draw the background gradient if necessary 1413 if (mBackground != null && mBackgroundAlpha > 0.0f && mDrawBackground) { 1414 int alpha = (int) (mBackgroundAlpha * 255); 1415 mBackground.setAlpha(alpha); 1416 mBackground.setBounds(getScrollX(), 0, getScrollX() + getMeasuredWidth(), 1417 getMeasuredHeight()); 1418 mBackground.draw(canvas); 1419 } 1420 1421 super.onDraw(canvas); 1422 1423 // Call back to LauncherModel to finish binding after the first draw 1424 post(mBindPages); 1425 } 1426 1427 boolean isDrawingBackgroundGradient() { 1428 return (mBackground != null && mBackgroundAlpha > 0.0f && mDrawBackground); 1429 } 1430 1431 @Override 1432 protected boolean onRequestFocusInDescendants(int direction, Rect previouslyFocusedRect) { 1433 if (!mLauncher.isAllAppsVisible()) { 1434 final Folder openFolder = getOpenFolder(); 1435 if (openFolder != null) { 1436 return openFolder.requestFocus(direction, previouslyFocusedRect); 1437 } else { 1438 return super.onRequestFocusInDescendants(direction, previouslyFocusedRect); 1439 } 1440 } 1441 return false; 1442 } 1443 1444 @Override 1445 public int getDescendantFocusability() { 1446 if (isSmall()) { 1447 return ViewGroup.FOCUS_BLOCK_DESCENDANTS; 1448 } 1449 return super.getDescendantFocusability(); 1450 } 1451 1452 @Override 1453 public void addFocusables(ArrayList<View> views, int direction, int focusableMode) { 1454 if (!mLauncher.isAllAppsVisible()) { 1455 final Folder openFolder = getOpenFolder(); 1456 if (openFolder != null) { 1457 openFolder.addFocusables(views, direction); 1458 } else { 1459 super.addFocusables(views, direction, focusableMode); 1460 } 1461 } 1462 } 1463 1464 public boolean isSmall() { 1465 return mState == State.SMALL || mState == State.SPRING_LOADED; 1466 } 1467 1468 void enableChildrenCache(int fromPage, int toPage) { 1469 if (fromPage > toPage) { 1470 final int temp = fromPage; 1471 fromPage = toPage; 1472 toPage = temp; 1473 } 1474 1475 final int screenCount = getChildCount(); 1476 1477 fromPage = Math.max(fromPage, 0); 1478 toPage = Math.min(toPage, screenCount - 1); 1479 1480 for (int i = fromPage; i <= toPage; i++) { 1481 final CellLayout layout = (CellLayout) getChildAt(i); 1482 layout.setChildrenDrawnWithCacheEnabled(true); 1483 layout.setChildrenDrawingCacheEnabled(true); 1484 } 1485 } 1486 1487 void clearChildrenCache() { 1488 final int screenCount = getChildCount(); 1489 for (int i = 0; i < screenCount; i++) { 1490 final CellLayout layout = (CellLayout) getChildAt(i); 1491 layout.setChildrenDrawnWithCacheEnabled(false); 1492 // In software mode, we don't want the items to continue to be drawn into bitmaps 1493 if (!isHardwareAccelerated()) { 1494 layout.setChildrenDrawingCacheEnabled(false); 1495 } 1496 } 1497 } 1498 1499 1500 private void updateChildrenLayersEnabled(boolean force) { 1501 boolean small = mState == State.SMALL || mIsSwitchingState; 1502 boolean enableChildrenLayers = force || small || mAnimatingViewIntoPlace || isPageMoving(); 1503 1504 if (enableChildrenLayers != mChildrenLayersEnabled) { 1505 mChildrenLayersEnabled = enableChildrenLayers; 1506 if (mChildrenLayersEnabled) { 1507 enableHwLayersOnVisiblePages(); 1508 } else { 1509 for (int i = 0; i < getPageCount(); i++) { 1510 final CellLayout cl = (CellLayout) getChildAt(i); 1511 cl.disableHardwareLayers(); 1512 } 1513 } 1514 } 1515 } 1516 1517 private void enableHwLayersOnVisiblePages() { 1518 if (mChildrenLayersEnabled) { 1519 final int screenCount = getChildCount(); 1520 getVisiblePages(mTempVisiblePagesRange); 1521 int leftScreen = mTempVisiblePagesRange[0]; 1522 int rightScreen = mTempVisiblePagesRange[1]; 1523 if (leftScreen == rightScreen) { 1524 // make sure we're caching at least two pages always 1525 if (rightScreen < screenCount - 1) { 1526 rightScreen++; 1527 } else if (leftScreen > 0) { 1528 leftScreen--; 1529 } 1530 } 1531 for (int i = 0; i < screenCount; i++) { 1532 final CellLayout layout = (CellLayout) getPageAt(i); 1533 if (!(leftScreen <= i && i <= rightScreen && shouldDrawChild(layout))) { 1534 layout.disableHardwareLayers(); 1535 } 1536 } 1537 for (int i = 0; i < screenCount; i++) { 1538 final CellLayout layout = (CellLayout) getPageAt(i); 1539 if (leftScreen <= i && i <= rightScreen && shouldDrawChild(layout)) { 1540 layout.enableHardwareLayers(); 1541 } 1542 } 1543 } 1544 } 1545 1546 public void buildPageHardwareLayers() { 1547 // force layers to be enabled just for the call to buildLayer 1548 updateChildrenLayersEnabled(true); 1549 if (getWindowToken() != null) { 1550 final int childCount = getChildCount(); 1551 for (int i = 0; i < childCount; i++) { 1552 CellLayout cl = (CellLayout) getChildAt(i); 1553 cl.buildHardwareLayer(); 1554 } 1555 } 1556 updateChildrenLayersEnabled(false); 1557 } 1558 1559 protected void onWallpaperTap(MotionEvent ev) { 1560 final int[] position = mTempCell; 1561 getLocationOnScreen(position); 1562 1563 int pointerIndex = ev.getActionIndex(); 1564 position[0] += (int) ev.getX(pointerIndex); 1565 position[1] += (int) ev.getY(pointerIndex); 1566 1567 mWallpaperManager.sendWallpaperCommand(getWindowToken(), 1568 ev.getAction() == MotionEvent.ACTION_UP 1569 ? WallpaperManager.COMMAND_TAP : WallpaperManager.COMMAND_SECONDARY_TAP, 1570 position[0], position[1], 0, null); 1571 } 1572 1573 /* 1574 * This interpolator emulates the rate at which the perceived scale of an object changes 1575 * as its distance from a camera increases. When this interpolator is applied to a scale 1576 * animation on a view, it evokes the sense that the object is shrinking due to moving away 1577 * from the camera. 1578 */ 1579 static class ZInterpolator implements TimeInterpolator { 1580 private float focalLength; 1581 1582 public ZInterpolator(float foc) { 1583 focalLength = foc; 1584 } 1585 1586 public float getInterpolation(float input) { 1587 return (1.0f - focalLength / (focalLength + input)) / 1588 (1.0f - focalLength / (focalLength + 1.0f)); 1589 } 1590 } 1591 1592 /* 1593 * The exact reverse of ZInterpolator. 1594 */ 1595 static class InverseZInterpolator implements TimeInterpolator { 1596 private ZInterpolator zInterpolator; 1597 public InverseZInterpolator(float foc) { 1598 zInterpolator = new ZInterpolator(foc); 1599 } 1600 public float getInterpolation(float input) { 1601 return 1 - zInterpolator.getInterpolation(1 - input); 1602 } 1603 } 1604 1605 /* 1606 * ZInterpolator compounded with an ease-out. 1607 */ 1608 static class ZoomOutInterpolator implements TimeInterpolator { 1609 private final DecelerateInterpolator decelerate = new DecelerateInterpolator(0.75f); 1610 private final ZInterpolator zInterpolator = new ZInterpolator(0.13f); 1611 1612 public float getInterpolation(float input) { 1613 return decelerate.getInterpolation(zInterpolator.getInterpolation(input)); 1614 } 1615 } 1616 1617 /* 1618 * InvereZInterpolator compounded with an ease-out. 1619 */ 1620 static class ZoomInInterpolator implements TimeInterpolator { 1621 private final InverseZInterpolator inverseZInterpolator = new InverseZInterpolator(0.35f); 1622 private final DecelerateInterpolator decelerate = new DecelerateInterpolator(3.0f); 1623 1624 public float getInterpolation(float input) { 1625 return decelerate.getInterpolation(inverseZInterpolator.getInterpolation(input)); 1626 } 1627 } 1628 1629 private final ZoomInInterpolator mZoomInInterpolator = new ZoomInInterpolator(); 1630 1631 /* 1632 * 1633 * We call these methods (onDragStartedWithItemSpans/onDragStartedWithSize) whenever we 1634 * start a drag in Launcher, regardless of whether the drag has ever entered the Workspace 1635 * 1636 * These methods mark the appropriate pages as accepting drops (which alters their visual 1637 * appearance). 1638 * 1639 */ 1640 public void onDragStartedWithItem(View v) { 1641 final Canvas canvas = new Canvas(); 1642 1643 // The outline is used to visualize where the item will land if dropped 1644 mDragOutline = createDragOutline(v, canvas, DRAG_BITMAP_PADDING); 1645 } 1646 1647 public void onDragStartedWithItem(PendingAddItemInfo info, Bitmap b, boolean clipAlpha) { 1648 final Canvas canvas = new Canvas(); 1649 1650 int[] size = estimateItemSize(info.spanX, info.spanY, info, false); 1651 1652 // The outline is used to visualize where the item will land if dropped 1653 mDragOutline = createDragOutline(b, canvas, DRAG_BITMAP_PADDING, size[0], 1654 size[1], clipAlpha); 1655 } 1656 1657 public void exitWidgetResizeMode() { 1658 DragLayer dragLayer = mLauncher.getDragLayer(); 1659 dragLayer.clearAllResizeFrames(); 1660 } 1661 1662 private void initAnimationArrays() { 1663 final int childCount = getChildCount(); 1664 if (mLastChildCount == childCount) return; 1665 1666 mOldBackgroundAlphas = new float[childCount]; 1667 mOldAlphas = new float[childCount]; 1668 mNewBackgroundAlphas = new float[childCount]; 1669 mNewAlphas = new float[childCount]; 1670 } 1671 1672 Animator getChangeStateAnimation(final State state, boolean animated) { 1673 return getChangeStateAnimation(state, animated, 0); 1674 } 1675 1676 void getReorderablePages(int[] range) { 1677 int count = mScreenOrder.size(); 1678 1679 int start = -1; 1680 int end = -1; 1681 // 1682 for (int i = 0; i < count; i++) { 1683 if (start < 0 && mScreenOrder.get(i) >= 0) { 1684 start = i; 1685 } 1686 if (start >=0 && mScreenOrder.get(i) >= 0) { 1687 end = i; 1688 } 1689 } 1690 range[0] = start; 1691 range[1] = end; 1692 } 1693 1694 protected void onStartReordering() { 1695 super.onStartReordering(); 1696 int count = getChildCount(); 1697 for (int i = 0; i < count; i++) { 1698 ((CellLayout) getChildAt(i)).setUseActiveGlowBackground(true); 1699 } 1700 showOutlines(); 1701 1702 // Reordering handles its own animations, disable the automatic ones. 1703 setLayoutTransition(null); 1704 } 1705 1706 protected void onEndReordering() { 1707 super.onEndReordering(); 1708 int count = getChildCount(); 1709 for (int i = 0; i < count; i++) { 1710 ((CellLayout) getChildAt(i)).setUseActiveGlowBackground(false); 1711 } 1712 hideOutlines(); 1713 1714 mScreenOrder.clear(); 1715 for (int i = 0; i < count; i++) { 1716 CellLayout cl = ((CellLayout) getChildAt(i)); 1717 mScreenOrder.add(getIdForScreen(cl)); 1718 } 1719 mLauncher.getModel().updateWorkspaceScreenOrder(mLauncher, mScreenOrder); 1720 1721 // Re-enable auto layout transitions for page deletion. 1722 setLayoutTransition(mLayoutTransition); 1723 } 1724 1725 Animator getChangeStateAnimation(final State state, boolean animated, int delay) { 1726 if (mState == state) { 1727 return null; 1728 } 1729 1730 // Initialize animation arrays for the first time if necessary 1731 initAnimationArrays(); 1732 1733 AnimatorSet anim = animated ? LauncherAnimUtils.createAnimatorSet() : null; 1734 1735 // Stop any scrolling, move to the current page right away 1736 setCurrentPage(getNextPage()); 1737 1738 final State oldState = mState; 1739 final boolean oldStateIsNormal = (oldState == State.NORMAL); 1740 final boolean oldStateIsSpringLoaded = (oldState == State.SPRING_LOADED); 1741 final boolean oldStateIsSmall = (oldState == State.SMALL); 1742 mState = state; 1743 final boolean stateIsNormal = (state == State.NORMAL); 1744 final boolean stateIsSpringLoaded = (state == State.SPRING_LOADED); 1745 final boolean stateIsSmall = (state == State.SMALL); 1746 float finalBackgroundAlpha = stateIsSpringLoaded ? 1.0f : 0f; 1747 boolean zoomIn = true; 1748 mNewScale = 1.0f; 1749 1750 if (state != State.NORMAL) { 1751 mNewScale = mSpringLoadedShrinkFactor - (stateIsSmall ? 0.1f : 0); 1752 if (oldStateIsNormal && stateIsSmall) { 1753 zoomIn = false; 1754 updateChildrenLayersEnabled(false); 1755 } else { 1756 finalBackgroundAlpha = 1.0f; 1757 } 1758 } 1759 final int duration = zoomIn ? 1760 getResources().getInteger(R.integer.config_workspaceUnshrinkTime) : 1761 getResources().getInteger(R.integer.config_appsCustomizeWorkspaceShrinkTime); 1762 for (int i = 0; i < getChildCount(); i++) { 1763 final CellLayout cl = (CellLayout) getChildAt(i); 1764 float finalAlpha = (!mWorkspaceFadeInAdjacentScreens || stateIsSpringLoaded || 1765 (i == mCurrentPage)) ? 1f : 0f; 1766 float currentAlpha = cl.getShortcutsAndWidgets().getAlpha(); 1767 float initialAlpha = currentAlpha; 1768 1769 // Determine the pages alpha during the state transition 1770 if ((oldStateIsSmall && stateIsNormal) || 1771 (oldStateIsNormal && stateIsSmall)) { 1772 // To/from workspace - only show the current page unless the transition is not 1773 // animated and the animation end callback below doesn't run; 1774 // or, if we're in spring-loaded mode 1775 if (i == mCurrentPage || !animated || oldStateIsSpringLoaded) { 1776 finalAlpha = 1f; 1777 } else { 1778 initialAlpha = 0f; 1779 finalAlpha = 0f; 1780 } 1781 } 1782 1783 mOldAlphas[i] = initialAlpha; 1784 mNewAlphas[i] = finalAlpha; 1785 if (animated) { 1786 mOldBackgroundAlphas[i] = cl.getBackgroundAlpha(); 1787 mNewBackgroundAlphas[i] = finalBackgroundAlpha; 1788 } else { 1789 setScaleX(mNewScale); 1790 setScaleY(mNewScale); 1791 cl.setBackgroundAlpha(finalBackgroundAlpha); 1792 cl.setShortcutAndWidgetAlpha(finalAlpha); 1793 } 1794 } 1795 1796 if (animated) { 1797 LauncherViewPropertyAnimator scale = new LauncherViewPropertyAnimator(this); 1798 scale.scaleX(mNewScale) 1799 .scaleY(mNewScale) 1800 .setInterpolator(mZoomInInterpolator); 1801 anim.play(scale); 1802 for (int index = 0; index < getChildCount(); index++) { 1803 final int i = index; 1804 final CellLayout cl = (CellLayout) getChildAt(i); 1805 float currentAlpha = cl.getShortcutsAndWidgets().getAlpha(); 1806 if (mOldAlphas[i] == 0 && mNewAlphas[i] == 0) { 1807 cl.setBackgroundAlpha(mNewBackgroundAlphas[i]); 1808 cl.setShortcutAndWidgetAlpha(mNewAlphas[i]); 1809 } else { 1810 1811 if (mOldAlphas[i] != mNewAlphas[i] || currentAlpha != mNewAlphas[i]) { 1812 LauncherViewPropertyAnimator alphaAnim = 1813 new LauncherViewPropertyAnimator(cl.getShortcutsAndWidgets()); 1814 alphaAnim.alpha(mNewAlphas[i]) 1815 .setDuration(duration) 1816 .setInterpolator(mZoomInInterpolator); 1817 anim.play(alphaAnim); 1818 } 1819 if (mOldBackgroundAlphas[i] != 0 || 1820 mNewBackgroundAlphas[i] != 0) { 1821 ValueAnimator bgAnim = 1822 LauncherAnimUtils.ofFloat(cl, 0f, 1f).setDuration(duration); 1823 bgAnim.setInterpolator(mZoomInInterpolator); 1824 bgAnim.addUpdateListener(new LauncherAnimatorUpdateListener() { 1825 public void onAnimationUpdate(float a, float b) { 1826 cl.setBackgroundAlpha( 1827 a * mOldBackgroundAlphas[i] + 1828 b * mNewBackgroundAlphas[i]); 1829 } 1830 }); 1831 anim.play(bgAnim); 1832 } 1833 } 1834 } 1835 anim.setStartDelay(delay); 1836 } 1837 1838 if (stateIsSpringLoaded) { 1839 // Right now we're covered by Apps Customize 1840 // Show the background gradient immediately, so the gradient will 1841 // be showing once AppsCustomize disappears 1842 animateBackgroundGradient(getResources().getInteger( 1843 R.integer.config_appsCustomizeSpringLoadedBgAlpha) / 100f, false); 1844 } else { 1845 // Fade the background gradient away 1846 animateBackgroundGradient(0f, true); 1847 } 1848 return anim; 1849 } 1850 1851 @Override 1852 public void onLauncherTransitionPrepare(Launcher l, boolean animated, boolean toWorkspace) { 1853 mIsSwitchingState = true; 1854 updateChildrenLayersEnabled(false); 1855 } 1856 1857 @Override 1858 public void onLauncherTransitionStart(Launcher l, boolean animated, boolean toWorkspace) { 1859 } 1860 1861 @Override 1862 public void onLauncherTransitionStep(Launcher l, float t) { 1863 mTransitionProgress = t; 1864 } 1865 1866 @Override 1867 public void onLauncherTransitionEnd(Launcher l, boolean animated, boolean toWorkspace) { 1868 mIsSwitchingState = false; 1869 mWallpaperOffset.setOverrideHorizontalCatchupConstant(false); 1870 updateChildrenLayersEnabled(false); 1871 // The code in getChangeStateAnimation to determine initialAlpha and finalAlpha will ensure 1872 // ensure that only the current page is visible during (and subsequently, after) the 1873 // transition animation. If fade adjacent pages is disabled, then re-enable the page 1874 // visibility after the transition animation. 1875 if (!mWorkspaceFadeInAdjacentScreens) { 1876 for (int i = 0; i < getChildCount(); i++) { 1877 final CellLayout cl = (CellLayout) getChildAt(i); 1878 cl.setShortcutAndWidgetAlpha(1f); 1879 } 1880 } 1881 } 1882 1883 @Override 1884 public View getContent() { 1885 return this; 1886 } 1887 1888 /** 1889 * Draw the View v into the given Canvas. 1890 * 1891 * @param v the view to draw 1892 * @param destCanvas the canvas to draw on 1893 * @param padding the horizontal and vertical padding to use when drawing 1894 */ 1895 private void drawDragView(View v, Canvas destCanvas, int padding, boolean pruneToDrawable) { 1896 final Rect clipRect = mTempRect; 1897 v.getDrawingRect(clipRect); 1898 1899 boolean textVisible = false; 1900 1901 destCanvas.save(); 1902 if (v instanceof TextView && pruneToDrawable) { 1903 Drawable d = ((TextView) v).getCompoundDrawables()[1]; 1904 clipRect.set(0, 0, d.getIntrinsicWidth() + padding, d.getIntrinsicHeight() + padding); 1905 destCanvas.translate(padding / 2, padding / 2); 1906 d.draw(destCanvas); 1907 } else { 1908 if (v instanceof FolderIcon) { 1909 // For FolderIcons the text can bleed into the icon area, and so we need to 1910 // hide the text completely (which can't be achieved by clipping). 1911 if (((FolderIcon) v).getTextVisible()) { 1912 ((FolderIcon) v).setTextVisible(false); 1913 textVisible = true; 1914 } 1915 } else if (v instanceof BubbleTextView) { 1916 final BubbleTextView tv = (BubbleTextView) v; 1917 clipRect.bottom = tv.getExtendedPaddingTop() - (int) BubbleTextView.PADDING_V + 1918 tv.getLayout().getLineTop(0); 1919 } else if (v instanceof TextView) { 1920 final TextView tv = (TextView) v; 1921 clipRect.bottom = tv.getExtendedPaddingTop() - tv.getCompoundDrawablePadding() + 1922 tv.getLayout().getLineTop(0); 1923 } 1924 destCanvas.translate(-v.getScrollX() + padding / 2, -v.getScrollY() + padding / 2); 1925 destCanvas.clipRect(clipRect, Op.REPLACE); 1926 v.draw(destCanvas); 1927 1928 // Restore text visibility of FolderIcon if necessary 1929 if (textVisible) { 1930 ((FolderIcon) v).setTextVisible(true); 1931 } 1932 } 1933 destCanvas.restore(); 1934 } 1935 1936 /** 1937 * Returns a new bitmap to show when the given View is being dragged around. 1938 * Responsibility for the bitmap is transferred to the caller. 1939 */ 1940 public Bitmap createDragBitmap(View v, Canvas canvas, int padding) { 1941 Bitmap b; 1942 1943 if (v instanceof TextView) { 1944 Drawable d = ((TextView) v).getCompoundDrawables()[1]; 1945 b = Bitmap.createBitmap(d.getIntrinsicWidth() + padding, 1946 d.getIntrinsicHeight() + padding, Bitmap.Config.ARGB_8888); 1947 } else { 1948 b = Bitmap.createBitmap( 1949 v.getWidth() + padding, v.getHeight() + padding, Bitmap.Config.ARGB_8888); 1950 } 1951 1952 canvas.setBitmap(b); 1953 drawDragView(v, canvas, padding, true); 1954 canvas.setBitmap(null); 1955 1956 return b; 1957 } 1958 1959 /** 1960 * Returns a new bitmap to be used as the object outline, e.g. to visualize the drop location. 1961 * Responsibility for the bitmap is transferred to the caller. 1962 */ 1963 private Bitmap createDragOutline(View v, Canvas canvas, int padding) { 1964 final int outlineColor = getResources().getColor(android.R.color.holo_blue_light); 1965 final Bitmap b = Bitmap.createBitmap( 1966 v.getWidth() + padding, v.getHeight() + padding, Bitmap.Config.ARGB_8888); 1967 1968 canvas.setBitmap(b); 1969 drawDragView(v, canvas, padding, true); 1970 mOutlineHelper.applyMediumExpensiveOutlineWithBlur(b, canvas, outlineColor, outlineColor); 1971 canvas.setBitmap(null); 1972 return b; 1973 } 1974 1975 /** 1976 * Returns a new bitmap to be used as the object outline, e.g. to visualize the drop location. 1977 * Responsibility for the bitmap is transferred to the caller. 1978 */ 1979 private Bitmap createDragOutline(Bitmap orig, Canvas canvas, int padding, int w, int h, 1980 boolean clipAlpha) { 1981 final int outlineColor = getResources().getColor(android.R.color.holo_blue_light); 1982 final Bitmap b = Bitmap.createBitmap(w, h, Bitmap.Config.ARGB_8888); 1983 canvas.setBitmap(b); 1984 1985 Rect src = new Rect(0, 0, orig.getWidth(), orig.getHeight()); 1986 float scaleFactor = Math.min((w - padding) / (float) orig.getWidth(), 1987 (h - padding) / (float) orig.getHeight()); 1988 int scaledWidth = (int) (scaleFactor * orig.getWidth()); 1989 int scaledHeight = (int) (scaleFactor * orig.getHeight()); 1990 Rect dst = new Rect(0, 0, scaledWidth, scaledHeight); 1991 1992 // center the image 1993 dst.offset((w - scaledWidth) / 2, (h - scaledHeight) / 2); 1994 1995 canvas.drawBitmap(orig, src, dst, null); 1996 mOutlineHelper.applyMediumExpensiveOutlineWithBlur(b, canvas, outlineColor, outlineColor, 1997 clipAlpha); 1998 canvas.setBitmap(null); 1999 2000 return b; 2001 } 2002 2003 void startDrag(CellLayout.CellInfo cellInfo) { 2004 View child = cellInfo.cell; 2005 2006 // Make sure the drag was started by a long press as opposed to a long click. 2007 if (!child.isInTouchMode()) { 2008 return; 2009 } 2010 2011 mDragInfo = cellInfo; 2012 child.setVisibility(INVISIBLE); 2013 CellLayout layout = (CellLayout) child.getParent().getParent(); 2014 layout.prepareChildForDrag(child); 2015 2016 child.clearFocus(); 2017 child.setPressed(false); 2018 2019 final Canvas canvas = new Canvas(); 2020 2021 // The outline is used to visualize where the item will land if dropped 2022 mDragOutline = createDragOutline(child, canvas, DRAG_BITMAP_PADDING); 2023 beginDragShared(child, this); 2024 } 2025 2026 public void beginDragShared(View child, DragSource source) { 2027 Resources r = getResources(); 2028 2029 // The drag bitmap follows the touch point around on the screen 2030 final Bitmap b = createDragBitmap(child, new Canvas(), DRAG_BITMAP_PADDING); 2031 2032 final int bmpWidth = b.getWidth(); 2033 final int bmpHeight = b.getHeight(); 2034 2035 float scale = mLauncher.getDragLayer().getLocationInDragLayer(child, mTempXY); 2036 int dragLayerX = 2037 Math.round(mTempXY[0] - (bmpWidth - scale * child.getWidth()) / 2); 2038 int dragLayerY = 2039 Math.round(mTempXY[1] - (bmpHeight - scale * bmpHeight) / 2 2040 - DRAG_BITMAP_PADDING / 2); 2041 2042 Point dragVisualizeOffset = null; 2043 Rect dragRect = null; 2044 if (child instanceof BubbleTextView || child instanceof PagedViewIcon) { 2045 int iconSize = r.getDimensionPixelSize(R.dimen.app_icon_size); 2046 int iconPaddingTop = r.getDimensionPixelSize(R.dimen.app_icon_padding_top); 2047 int top = child.getPaddingTop(); 2048 int left = (bmpWidth - iconSize) / 2; 2049 int right = left + iconSize; 2050 int bottom = top + iconSize; 2051 dragLayerY += top; 2052 // Note: The drag region is used to calculate drag layer offsets, but the 2053 // dragVisualizeOffset in addition to the dragRect (the size) to position the outline. 2054 dragVisualizeOffset = new Point(-DRAG_BITMAP_PADDING / 2, 2055 iconPaddingTop - DRAG_BITMAP_PADDING / 2); 2056 dragRect = new Rect(left, top, right, bottom); 2057 } else if (child instanceof FolderIcon) { 2058 int previewSize = r.getDimensionPixelSize(R.dimen.folder_preview_size); 2059 dragRect = new Rect(0, 0, child.getWidth(), previewSize); 2060 } 2061 2062 // Clear the pressed state if necessary 2063 if (child instanceof BubbleTextView) { 2064 BubbleTextView icon = (BubbleTextView) child; 2065 icon.clearPressedOrFocusedBackground(); 2066 } 2067 2068 mDragController.startDrag(b, dragLayerX, dragLayerY, source, child.getTag(), 2069 DragController.DRAG_ACTION_MOVE, dragVisualizeOffset, dragRect, scale); 2070 b.recycle(); 2071 } 2072 2073 void addApplicationShortcut(ShortcutInfo info, CellLayout target, long container, long screenId, 2074 int cellX, int cellY, boolean insertAtFirst, int intersectX, int intersectY) { 2075 View view = mLauncher.createShortcut(R.layout.application, target, (ShortcutInfo) info); 2076 2077 final int[] cellXY = new int[2]; 2078 target.findCellForSpanThatIntersects(cellXY, 1, 1, intersectX, intersectY); 2079 addInScreen(view, container, screenId, cellXY[0], cellXY[1], 1, 1, insertAtFirst); 2080 2081 LauncherModel.addOrMoveItemInDatabase(mLauncher, info, container, screenId, cellXY[0], 2082 cellXY[1]); 2083 } 2084 2085 public boolean transitionStateShouldAllowDrop() { 2086 return ((!isSwitchingState() || mTransitionProgress > 0.5f) && mState != State.SMALL); 2087 } 2088 2089 /** 2090 * {@inheritDoc} 2091 */ 2092 public boolean acceptDrop(DragObject d) { 2093 // If it's an external drop (e.g. from All Apps), check if it should be accepted 2094 CellLayout dropTargetLayout = mDropToLayout; 2095 if (d.dragSource != this) { 2096 // Don't accept the drop if we're not over a screen at time of drop 2097 if (dropTargetLayout == null) { 2098 return false; 2099 } 2100 if (!transitionStateShouldAllowDrop()) return false; 2101 2102 mDragViewVisualCenter = getDragViewVisualCenter(d.x, d.y, d.xOffset, d.yOffset, 2103 d.dragView, mDragViewVisualCenter); 2104 2105 // We want the point to be mapped to the dragTarget. 2106 if (mLauncher.isHotseatLayout(dropTargetLayout)) { 2107 mapPointFromSelfToHotseatLayout(mLauncher.getHotseat(), mDragViewVisualCenter); 2108 } else { 2109 mapPointFromSelfToChild(dropTargetLayout, mDragViewVisualCenter, null); 2110 } 2111 2112 int spanX = 1; 2113 int spanY = 1; 2114 if (mDragInfo != null) { 2115 final CellLayout.CellInfo dragCellInfo = mDragInfo; 2116 spanX = dragCellInfo.spanX; 2117 spanY = dragCellInfo.spanY; 2118 } else { 2119 final ItemInfo dragInfo = (ItemInfo) d.dragInfo; 2120 spanX = dragInfo.spanX; 2121 spanY = dragInfo.spanY; 2122 } 2123 2124 int minSpanX = spanX; 2125 int minSpanY = spanY; 2126 if (d.dragInfo instanceof PendingAddWidgetInfo) { 2127 minSpanX = ((PendingAddWidgetInfo) d.dragInfo).minSpanX; 2128 minSpanY = ((PendingAddWidgetInfo) d.dragInfo).minSpanY; 2129 } 2130 2131 mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], 2132 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, dropTargetLayout, 2133 mTargetCell); 2134 float distance = dropTargetLayout.getDistanceFromCell(mDragViewVisualCenter[0], 2135 mDragViewVisualCenter[1], mTargetCell); 2136 if (willCreateUserFolder((ItemInfo) d.dragInfo, dropTargetLayout, 2137 mTargetCell, distance, true)) { 2138 return true; 2139 } 2140 if (willAddToExistingUserFolder((ItemInfo) d.dragInfo, dropTargetLayout, 2141 mTargetCell, distance)) { 2142 return true; 2143 } 2144 2145 int[] resultSpan = new int[2]; 2146 mTargetCell = dropTargetLayout.createArea((int) mDragViewVisualCenter[0], 2147 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, spanX, spanY, 2148 null, mTargetCell, resultSpan, CellLayout.MODE_ACCEPT_DROP); 2149 boolean foundCell = mTargetCell[0] >= 0 && mTargetCell[1] >= 0; 2150 2151 // Don't accept the drop if there's no room for the item 2152 if (!foundCell) { 2153 // Don't show the message if we are dropping on the AllApps button and the hotseat 2154 // is full 2155 boolean isHotseat = mLauncher.isHotseatLayout(dropTargetLayout); 2156 if (mTargetCell != null && isHotseat) { 2157 Hotseat hotseat = mLauncher.getHotseat(); 2158 if (hotseat.isAllAppsButtonRank( 2159 hotseat.getOrderInHotseat(mTargetCell[0], mTargetCell[1]))) { 2160 return false; 2161 } 2162 } 2163 2164 mLauncher.showOutOfSpaceMessage(isHotseat); 2165 return false; 2166 } 2167 } 2168 2169 long screenId = getIdForScreen(dropTargetLayout); 2170 if (screenId == EXTRA_EMPTY_SCREEN_ID) { 2171 commitExtraEmptyScreen(); 2172 } 2173 2174 return true; 2175 } 2176 2177 boolean willCreateUserFolder(ItemInfo info, CellLayout target, int[] targetCell, float 2178 distance, boolean considerTimeout) { 2179 if (distance > mMaxDistanceForFolderCreation) return false; 2180 View dropOverView = target.getChildAt(targetCell[0], targetCell[1]); 2181 2182 if (dropOverView != null) { 2183 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) dropOverView.getLayoutParams(); 2184 if (lp.useTmpCoords && (lp.tmpCellX != lp.cellX || lp.tmpCellY != lp.tmpCellY)) { 2185 return false; 2186 } 2187 } 2188 2189 boolean hasntMoved = false; 2190 if (mDragInfo != null) { 2191 hasntMoved = dropOverView == mDragInfo.cell; 2192 } 2193 2194 if (dropOverView == null || hasntMoved || (considerTimeout && !mCreateUserFolderOnDrop)) { 2195 return false; 2196 } 2197 2198 boolean aboveShortcut = (dropOverView.getTag() instanceof ShortcutInfo); 2199 boolean willBecomeShortcut = 2200 (info.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPLICATION || 2201 info.itemType == LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT); 2202 2203 return (aboveShortcut && willBecomeShortcut); 2204 } 2205 2206 boolean willAddToExistingUserFolder(Object dragInfo, CellLayout target, int[] targetCell, 2207 float distance) { 2208 if (distance > mMaxDistanceForFolderCreation) return false; 2209 View dropOverView = target.getChildAt(targetCell[0], targetCell[1]); 2210 2211 if (dropOverView != null) { 2212 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) dropOverView.getLayoutParams(); 2213 if (lp.useTmpCoords && (lp.tmpCellX != lp.cellX || lp.tmpCellY != lp.tmpCellY)) { 2214 return false; 2215 } 2216 } 2217 2218 if (dropOverView instanceof FolderIcon) { 2219 FolderIcon fi = (FolderIcon) dropOverView; 2220 if (fi.acceptDrop(dragInfo)) { 2221 return true; 2222 } 2223 } 2224 return false; 2225 } 2226 2227 boolean createUserFolderIfNecessary(View newView, long container, CellLayout target, 2228 int[] targetCell, float distance, boolean external, DragView dragView, 2229 Runnable postAnimationRunnable) { 2230 if (distance > mMaxDistanceForFolderCreation) return false; 2231 View v = target.getChildAt(targetCell[0], targetCell[1]); 2232 2233 boolean hasntMoved = false; 2234 if (mDragInfo != null) { 2235 CellLayout cellParent = getParentCellLayoutForView(mDragInfo.cell); 2236 hasntMoved = (mDragInfo.cellX == targetCell[0] && 2237 mDragInfo.cellY == targetCell[1]) && (cellParent == target); 2238 } 2239 2240 if (v == null || hasntMoved || !mCreateUserFolderOnDrop) return false; 2241 mCreateUserFolderOnDrop = false; 2242 final long screenId = (targetCell == null) ? mDragInfo.screenId : getIdForScreen(target); 2243 2244 boolean aboveShortcut = (v.getTag() instanceof ShortcutInfo); 2245 boolean willBecomeShortcut = (newView.getTag() instanceof ShortcutInfo); 2246 2247 if (aboveShortcut && willBecomeShortcut) { 2248 ShortcutInfo sourceInfo = (ShortcutInfo) newView.getTag(); 2249 ShortcutInfo destInfo = (ShortcutInfo) v.getTag(); 2250 // if the drag started here, we need to remove it from the workspace 2251 if (!external) { 2252 getParentCellLayoutForView(mDragInfo.cell).removeView(mDragInfo.cell); 2253 } 2254 2255 Rect folderLocation = new Rect(); 2256 float scale = mLauncher.getDragLayer().getDescendantRectRelativeToSelf(v, folderLocation); 2257 target.removeView(v); 2258 2259 FolderIcon fi = 2260 mLauncher.addFolder(target, container, screenId, targetCell[0], targetCell[1]); 2261 destInfo.cellX = -1; 2262 destInfo.cellY = -1; 2263 sourceInfo.cellX = -1; 2264 sourceInfo.cellY = -1; 2265 2266 // If the dragView is null, we can't animate 2267 boolean animate = dragView != null; 2268 if (animate) { 2269 fi.performCreateAnimation(destInfo, v, sourceInfo, dragView, folderLocation, scale, 2270 postAnimationRunnable); 2271 } else { 2272 fi.addItem(destInfo); 2273 fi.addItem(sourceInfo); 2274 } 2275 return true; 2276 } 2277 return false; 2278 } 2279 2280 boolean addToExistingFolderIfNecessary(View newView, CellLayout target, int[] targetCell, 2281 float distance, DragObject d, boolean external) { 2282 if (distance > mMaxDistanceForFolderCreation) return false; 2283 2284 View dropOverView = target.getChildAt(targetCell[0], targetCell[1]); 2285 if (!mAddToExistingFolderOnDrop) return false; 2286 mAddToExistingFolderOnDrop = false; 2287 2288 if (dropOverView instanceof FolderIcon) { 2289 FolderIcon fi = (FolderIcon) dropOverView; 2290 if (fi.acceptDrop(d.dragInfo)) { 2291 fi.onDrop(d); 2292 2293 // if the drag started here, we need to remove it from the workspace 2294 if (!external) { 2295 getParentCellLayoutForView(mDragInfo.cell).removeView(mDragInfo.cell); 2296 } 2297 return true; 2298 } 2299 } 2300 return false; 2301 } 2302 2303 public void onDrop(final DragObject d) { 2304 mDragViewVisualCenter = getDragViewVisualCenter(d.x, d.y, d.xOffset, d.yOffset, d.dragView, 2305 mDragViewVisualCenter); 2306 2307 CellLayout dropTargetLayout = mDropToLayout; 2308 2309 // We want the point to be mapped to the dragTarget. 2310 if (dropTargetLayout != null) { 2311 if (mLauncher.isHotseatLayout(dropTargetLayout)) { 2312 mapPointFromSelfToHotseatLayout(mLauncher.getHotseat(), mDragViewVisualCenter); 2313 } else { 2314 mapPointFromSelfToChild(dropTargetLayout, mDragViewVisualCenter, null); 2315 } 2316 } 2317 2318 int snapScreen = -1; 2319 boolean resizeOnDrop = false; 2320 if (d.dragSource != this) { 2321 final int[] touchXY = new int[] { (int) mDragViewVisualCenter[0], 2322 (int) mDragViewVisualCenter[1] }; 2323 onDropExternal(touchXY, d.dragInfo, dropTargetLayout, false, d); 2324 } else if (mDragInfo != null) { 2325 final View cell = mDragInfo.cell; 2326 2327 Runnable resizeRunnable = null; 2328 if (dropTargetLayout != null && !d.cancelled) { 2329 // Move internally 2330 boolean hasMovedLayouts = (getParentCellLayoutForView(cell) != dropTargetLayout); 2331 boolean hasMovedIntoHotseat = mLauncher.isHotseatLayout(dropTargetLayout); 2332 long container = hasMovedIntoHotseat ? 2333 LauncherSettings.Favorites.CONTAINER_HOTSEAT : 2334 LauncherSettings.Favorites.CONTAINER_DESKTOP; 2335 long screenId = (mTargetCell[0] < 0) ? 2336 mDragInfo.screenId : getIdForScreen(dropTargetLayout); 2337 int spanX = mDragInfo != null ? mDragInfo.spanX : 1; 2338 int spanY = mDragInfo != null ? mDragInfo.spanY : 1; 2339 // First we find the cell nearest to point at which the item is 2340 // dropped, without any consideration to whether there is an item there. 2341 2342 mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], (int) 2343 mDragViewVisualCenter[1], spanX, spanY, dropTargetLayout, mTargetCell); 2344 float distance = dropTargetLayout.getDistanceFromCell(mDragViewVisualCenter[0], 2345 mDragViewVisualCenter[1], mTargetCell); 2346 2347 // If the item being dropped is a shortcut and the nearest drop 2348 // cell also contains a shortcut, then create a folder with the two shortcuts. 2349 if (!mInScrollArea && createUserFolderIfNecessary(cell, container, 2350 dropTargetLayout, mTargetCell, distance, false, d.dragView, null)) { 2351 stripEmptyScreens(); 2352 return; 2353 } 2354 2355 if (addToExistingFolderIfNecessary(cell, dropTargetLayout, mTargetCell, 2356 distance, d, false)) { 2357 stripEmptyScreens(); 2358 return; 2359 } 2360 2361 // Aside from the special case where we're dropping a shortcut onto a shortcut, 2362 // we need to find the nearest cell location that is vacant 2363 ItemInfo item = (ItemInfo) d.dragInfo; 2364 int minSpanX = item.spanX; 2365 int minSpanY = item.spanY; 2366 if (item.minSpanX > 0 && item.minSpanY > 0) { 2367 minSpanX = item.minSpanX; 2368 minSpanY = item.minSpanY; 2369 } 2370 2371 int[] resultSpan = new int[2]; 2372 mTargetCell = dropTargetLayout.createArea((int) mDragViewVisualCenter[0], 2373 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, spanX, spanY, cell, 2374 mTargetCell, resultSpan, CellLayout.MODE_ON_DROP); 2375 2376 boolean foundCell = mTargetCell[0] >= 0 && mTargetCell[1] >= 0; 2377 2378 // if the widget resizes on drop 2379 if (foundCell && (cell instanceof AppWidgetHostView) && 2380 (resultSpan[0] != item.spanX || resultSpan[1] != item.spanY)) { 2381 resizeOnDrop = true; 2382 item.spanX = resultSpan[0]; 2383 item.spanY = resultSpan[1]; 2384 AppWidgetHostView awhv = (AppWidgetHostView) cell; 2385 AppWidgetResizeFrame.updateWidgetSizeRanges(awhv, mLauncher, resultSpan[0], 2386 resultSpan[1]); 2387 } 2388 2389 if (getScreenIdForPageIndex(mCurrentPage) != screenId && !hasMovedIntoHotseat) { 2390 snapScreen = getPageIndexForScreenId(screenId); 2391 snapToPage(snapScreen); 2392 } 2393 2394 if (foundCell) { 2395 final ItemInfo info = (ItemInfo) cell.getTag(); 2396 if (hasMovedLayouts) { 2397 // Reparent the view 2398 getParentCellLayoutForView(cell).removeView(cell); 2399 addInScreen(cell, container, screenId, mTargetCell[0], mTargetCell[1], 2400 info.spanX, info.spanY); 2401 } 2402 2403 // update the item's position after drop 2404 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) cell.getLayoutParams(); 2405 lp.cellX = lp.tmpCellX = mTargetCell[0]; 2406 lp.cellY = lp.tmpCellY = mTargetCell[1]; 2407 lp.cellHSpan = item.spanX; 2408 lp.cellVSpan = item.spanY; 2409 lp.isLockedToGrid = true; 2410 cell.setId(LauncherModel.getCellLayoutChildId(container, mDragInfo.screenId, 2411 mTargetCell[0], mTargetCell[1], mDragInfo.spanX, mDragInfo.spanY)); 2412 2413 if (container != LauncherSettings.Favorites.CONTAINER_HOTSEAT && 2414 cell instanceof LauncherAppWidgetHostView) { 2415 final CellLayout cellLayout = dropTargetLayout; 2416 // We post this call so that the widget has a chance to be placed 2417 // in its final location 2418 2419 final LauncherAppWidgetHostView hostView = (LauncherAppWidgetHostView) cell; 2420 AppWidgetProviderInfo pinfo = hostView.getAppWidgetInfo(); 2421 if (pinfo != null && 2422 pinfo.resizeMode != AppWidgetProviderInfo.RESIZE_NONE) { 2423 final Runnable addResizeFrame = new Runnable() { 2424 public void run() { 2425 DragLayer dragLayer = mLauncher.getDragLayer(); 2426 dragLayer.addResizeFrame(info, hostView, cellLayout); 2427 } 2428 }; 2429 resizeRunnable = (new Runnable() { 2430 public void run() { 2431 if (!isPageMoving()) { 2432 addResizeFrame.run(); 2433 } else { 2434 mDelayedResizeRunnable = addResizeFrame; 2435 } 2436 } 2437 }); 2438 } 2439 } 2440 2441 LauncherModel.moveItemInDatabase(mLauncher, info, container, screenId, lp.cellX, 2442 lp.cellY); 2443 } else { 2444 // If we can't find a drop location, we return the item to its original position 2445 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) cell.getLayoutParams(); 2446 mTargetCell[0] = lp.cellX; 2447 mTargetCell[1] = lp.cellY; 2448 CellLayout layout = (CellLayout) cell.getParent().getParent(); 2449 layout.markCellsAsOccupiedForView(cell); 2450 } 2451 } 2452 2453 final CellLayout parent = (CellLayout) cell.getParent().getParent(); 2454 final Runnable finalResizeRunnable = resizeRunnable; 2455 // Prepare it to be animated into its new position 2456 // This must be called after the view has been re-parented 2457 final Runnable onCompleteRunnable = new Runnable() { 2458 @Override 2459 public void run() { 2460 mAnimatingViewIntoPlace = false; 2461 updateChildrenLayersEnabled(false); 2462 if (finalResizeRunnable != null) { 2463 finalResizeRunnable.run(); 2464 } 2465 stripEmptyScreens(); 2466 } 2467 }; 2468 mAnimatingViewIntoPlace = true; 2469 if (d.dragView.hasDrawn()) { 2470 final ItemInfo info = (ItemInfo) cell.getTag(); 2471 if (info.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET) { 2472 int animationType = resizeOnDrop ? ANIMATE_INTO_POSITION_AND_RESIZE : 2473 ANIMATE_INTO_POSITION_AND_DISAPPEAR; 2474 animateWidgetDrop(info, parent, d.dragView, 2475 onCompleteRunnable, animationType, cell, false); 2476 } else { 2477 int duration = snapScreen < 0 ? -1 : ADJACENT_SCREEN_DROP_DURATION; 2478 mLauncher.getDragLayer().animateViewIntoPosition(d.dragView, cell, duration, 2479 onCompleteRunnable, this); 2480 } 2481 } else { 2482 d.deferDragViewCleanupPostAnimation = false; 2483 cell.setVisibility(VISIBLE); 2484 } 2485 parent.onDropChild(cell); 2486 } 2487 } 2488 2489 public void setFinalScrollForPageChange(int pageIndex) { 2490 CellLayout cl = (CellLayout) getChildAt(pageIndex); 2491 if (cl != null) { 2492 mSavedScrollX = getScrollX(); 2493 mSavedTranslationX = cl.getTranslationX(); 2494 mSavedRotationY = cl.getRotationY(); 2495 final int newX = getScrollForPage(pageIndex); 2496 setScrollX(newX); 2497 cl.setTranslationX(0f); 2498 cl.setRotationY(0f); 2499 } 2500 } 2501 2502 public void resetFinalScrollForPageChange(int pageIndex) { 2503 if (pageIndex >= 0) { 2504 CellLayout cl = (CellLayout) getChildAt(pageIndex); 2505 setScrollX(mSavedScrollX); 2506 cl.setTranslationX(mSavedTranslationX); 2507 cl.setRotationY(mSavedRotationY); 2508 } 2509 } 2510 2511 public void getViewLocationRelativeToSelf(View v, int[] location) { 2512 getLocationInWindow(location); 2513 int x = location[0]; 2514 int y = location[1]; 2515 2516 v.getLocationInWindow(location); 2517 int vX = location[0]; 2518 int vY = location[1]; 2519 2520 location[0] = vX - x; 2521 location[1] = vY - y; 2522 } 2523 2524 public void onDragEnter(DragObject d) { 2525 mDragEnforcer.onDragEnter(); 2526 mCreateUserFolderOnDrop = false; 2527 mAddToExistingFolderOnDrop = false; 2528 2529 mDropToLayout = null; 2530 CellLayout layout = getCurrentDropLayout(); 2531 setCurrentDropLayout(layout); 2532 setCurrentDragOverlappingLayout(layout); 2533 2534 // Because we don't have space in the Phone UI (the CellLayouts run to the edge) we 2535 // don't need to show the outlines 2536 if (LauncherAppState.getInstance().isScreenLarge()) { 2537 showOutlines(); 2538 } 2539 } 2540 2541 static Rect getCellLayoutMetrics(Launcher launcher, int orientation) { 2542 Resources res = launcher.getResources(); 2543 Display display = launcher.getWindowManager().getDefaultDisplay(); 2544 Point smallestSize = new Point(); 2545 Point largestSize = new Point(); 2546 display.getCurrentSizeRange(smallestSize, largestSize); 2547 if (orientation == CellLayout.LANDSCAPE) { 2548 if (mLandscapeCellLayoutMetrics == null) { 2549 int paddingLeft = res.getDimensionPixelSize(R.dimen.workspace_left_padding_land); 2550 int paddingRight = res.getDimensionPixelSize(R.dimen.workspace_right_padding_land); 2551 int paddingTop = res.getDimensionPixelSize(R.dimen.workspace_top_padding_land); 2552 int paddingBottom = res.getDimensionPixelSize(R.dimen.workspace_bottom_padding_land); 2553 int width = largestSize.x - paddingLeft - paddingRight; 2554 int height = smallestSize.y - paddingTop - paddingBottom; 2555 mLandscapeCellLayoutMetrics = new Rect(); 2556 CellLayout.getMetrics(mLandscapeCellLayoutMetrics, res, 2557 width, height, LauncherModel.getCellCountX(), LauncherModel.getCellCountY(), 2558 orientation); 2559 } 2560 return mLandscapeCellLayoutMetrics; 2561 } else if (orientation == CellLayout.PORTRAIT) { 2562 if (mPortraitCellLayoutMetrics == null) { 2563 int paddingLeft = res.getDimensionPixelSize(R.dimen.workspace_left_padding_land); 2564 int paddingRight = res.getDimensionPixelSize(R.dimen.workspace_right_padding_land); 2565 int paddingTop = res.getDimensionPixelSize(R.dimen.workspace_top_padding_land); 2566 int paddingBottom = res.getDimensionPixelSize(R.dimen.workspace_bottom_padding_land); 2567 int width = smallestSize.x - paddingLeft - paddingRight; 2568 int height = largestSize.y - paddingTop - paddingBottom; 2569 mPortraitCellLayoutMetrics = new Rect(); 2570 CellLayout.getMetrics(mPortraitCellLayoutMetrics, res, 2571 width, height, LauncherModel.getCellCountX(), LauncherModel.getCellCountY(), 2572 orientation); 2573 } 2574 return mPortraitCellLayoutMetrics; 2575 } 2576 return null; 2577 } 2578 2579 public void onDragExit(DragObject d) { 2580 mDragEnforcer.onDragExit(); 2581 2582 // Here we store the final page that will be dropped to, if the workspace in fact 2583 // receives the drop 2584 if (mInScrollArea) { 2585 if (isPageMoving()) { 2586 // If the user drops while the page is scrolling, we should use that page as the 2587 // destination instead of the page that is being hovered over. 2588 mDropToLayout = (CellLayout) getPageAt(getNextPage()); 2589 } else { 2590 mDropToLayout = mDragOverlappingLayout; 2591 } 2592 } else { 2593 mDropToLayout = mDragTargetLayout; 2594 } 2595 2596 if (mDragMode == DRAG_MODE_CREATE_FOLDER) { 2597 mCreateUserFolderOnDrop = true; 2598 } else if (mDragMode == DRAG_MODE_ADD_TO_FOLDER) { 2599 mAddToExistingFolderOnDrop = true; 2600 } 2601 2602 // Reset the scroll area and previous drag target 2603 onResetScrollArea(); 2604 setCurrentDropLayout(null); 2605 setCurrentDragOverlappingLayout(null); 2606 2607 mSpringLoadedDragController.cancel(); 2608 2609 if (!mIsPageMoving) { 2610 hideOutlines(); 2611 } 2612 } 2613 2614 void setCurrentDropLayout(CellLayout layout) { 2615 if (mDragTargetLayout != null) { 2616 mDragTargetLayout.revertTempState(); 2617 mDragTargetLayout.onDragExit(); 2618 } 2619 mDragTargetLayout = layout; 2620 if (mDragTargetLayout != null) { 2621 mDragTargetLayout.onDragEnter(); 2622 } 2623 cleanupReorder(true); 2624 cleanupFolderCreation(); 2625 setCurrentDropOverCell(-1, -1); 2626 } 2627 2628 void setCurrentDragOverlappingLayout(CellLayout layout) { 2629 if (mDragOverlappingLayout != null) { 2630 mDragOverlappingLayout.setIsDragOverlapping(false); 2631 } 2632 mDragOverlappingLayout = layout; 2633 if (mDragOverlappingLayout != null) { 2634 mDragOverlappingLayout.setIsDragOverlapping(true); 2635 } 2636 invalidate(); 2637 } 2638 2639 void setCurrentDropOverCell(int x, int y) { 2640 if (x != mDragOverX || y != mDragOverY) { 2641 mDragOverX = x; 2642 mDragOverY = y; 2643 setDragMode(DRAG_MODE_NONE); 2644 } 2645 } 2646 2647 void setDragMode(int dragMode) { 2648 if (dragMode != mDragMode) { 2649 if (dragMode == DRAG_MODE_NONE) { 2650 cleanupAddToFolder(); 2651 // We don't want to cancel the re-order alarm every time the target cell changes 2652 // as this feels to slow / unresponsive. 2653 cleanupReorder(false); 2654 cleanupFolderCreation(); 2655 } else if (dragMode == DRAG_MODE_ADD_TO_FOLDER) { 2656 cleanupReorder(true); 2657 cleanupFolderCreation(); 2658 } else if (dragMode == DRAG_MODE_CREATE_FOLDER) { 2659 cleanupAddToFolder(); 2660 cleanupReorder(true); 2661 } else if (dragMode == DRAG_MODE_REORDER) { 2662 cleanupAddToFolder(); 2663 cleanupFolderCreation(); 2664 } 2665 mDragMode = dragMode; 2666 } 2667 } 2668 2669 private void cleanupFolderCreation() { 2670 if (mDragFolderRingAnimator != null) { 2671 mDragFolderRingAnimator.animateToNaturalState(); 2672 } 2673 mFolderCreationAlarm.cancelAlarm(); 2674 } 2675 2676 private void cleanupAddToFolder() { 2677 if (mDragOverFolderIcon != null) { 2678 mDragOverFolderIcon.onDragExit(null); 2679 mDragOverFolderIcon = null; 2680 } 2681 } 2682 2683 private void cleanupReorder(boolean cancelAlarm) { 2684 // Any pending reorders are canceled 2685 if (cancelAlarm) { 2686 mReorderAlarm.cancelAlarm(); 2687 } 2688 mLastReorderX = -1; 2689 mLastReorderY = -1; 2690 } 2691 2692 /* 2693 * 2694 * Convert the 2D coordinate xy from the parent View's coordinate space to this CellLayout's 2695 * coordinate space. The argument xy is modified with the return result. 2696 * 2697 * if cachedInverseMatrix is not null, this method will just use that matrix instead of 2698 * computing it itself; we use this to avoid redundant matrix inversions in 2699 * findMatchingPageForDragOver 2700 * 2701 */ 2702 void mapPointFromSelfToChild(View v, float[] xy, Matrix cachedInverseMatrix) { 2703 xy[0] = xy[0] - v.getLeft(); 2704 xy[1] = xy[1] - v.getTop(); 2705 } 2706 2707 boolean isPointInSelfOverHotseat(int x, int y, Rect r) { 2708 if (r == null) { 2709 r = new Rect(); 2710 } 2711 mTempPt[0] = x; 2712 mTempPt[1] = y; 2713 mLauncher.getDragLayer().getDescendantCoordRelativeToSelf(this, mTempPt, true); 2714 mLauncher.getHotseat().getHitRect(r); 2715 if (r.contains(mTempPt[0], mTempPt[1])) { 2716 return true; 2717 } 2718 return false; 2719 } 2720 2721 void mapPointFromSelfToHotseatLayout(Hotseat hotseat, float[] xy) { 2722 mTempPt[0] = (int) xy[0]; 2723 mTempPt[1] = (int) xy[1]; 2724 mLauncher.getDragLayer().getDescendantCoordRelativeToSelf(this, mTempPt, true); 2725 mLauncher.getDragLayer().mapCoordInSelfToDescendent(hotseat.getLayout(), mTempPt); 2726 2727 xy[0] = mTempPt[0]; 2728 xy[1] = mTempPt[1]; 2729 } 2730 2731 /* 2732 * 2733 * Convert the 2D coordinate xy from this CellLayout's coordinate space to 2734 * the parent View's coordinate space. The argument xy is modified with the return result. 2735 * 2736 */ 2737 void mapPointFromChildToSelf(View v, float[] xy) { 2738 xy[0] += v.getLeft(); 2739 xy[1] += v.getTop(); 2740 } 2741 2742 static private float squaredDistance(float[] point1, float[] point2) { 2743 float distanceX = point1[0] - point2[0]; 2744 float distanceY = point2[1] - point2[1]; 2745 return distanceX * distanceX + distanceY * distanceY; 2746 } 2747 2748 /* 2749 * 2750 * This method returns the CellLayout that is currently being dragged to. In order to drag 2751 * to a CellLayout, either the touch point must be directly over the CellLayout, or as a second 2752 * strategy, we see if the dragView is overlapping any CellLayout and choose the closest one 2753 * 2754 * Return null if no CellLayout is currently being dragged over 2755 * 2756 */ 2757 private CellLayout findMatchingPageForDragOver( 2758 DragView dragView, float originX, float originY, boolean exact) { 2759 // We loop through all the screens (ie CellLayouts) and see which ones overlap 2760 // with the item being dragged and then choose the one that's closest to the touch point 2761 final int screenCount = getChildCount(); 2762 CellLayout bestMatchingScreen = null; 2763 float smallestDistSoFar = Float.MAX_VALUE; 2764 2765 for (int i = 0; i < screenCount; i++) { 2766 CellLayout cl = (CellLayout) getChildAt(i); 2767 2768 final float[] touchXy = {originX, originY}; 2769 // Transform the touch coordinates to the CellLayout's local coordinates 2770 // If the touch point is within the bounds of the cell layout, we can return immediately 2771 cl.getMatrix().invert(mTempInverseMatrix); 2772 mapPointFromSelfToChild(cl, touchXy, mTempInverseMatrix); 2773 2774 if (touchXy[0] >= 0 && touchXy[0] <= cl.getWidth() && 2775 touchXy[1] >= 0 && touchXy[1] <= cl.getHeight()) { 2776 return cl; 2777 } 2778 2779 if (!exact) { 2780 // Get the center of the cell layout in screen coordinates 2781 final float[] cellLayoutCenter = mTempCellLayoutCenterCoordinates; 2782 cellLayoutCenter[0] = cl.getWidth()/2; 2783 cellLayoutCenter[1] = cl.getHeight()/2; 2784 mapPointFromChildToSelf(cl, cellLayoutCenter); 2785 2786 touchXy[0] = originX; 2787 touchXy[1] = originY; 2788 2789 // Calculate the distance between the center of the CellLayout 2790 // and the touch point 2791 float dist = squaredDistance(touchXy, cellLayoutCenter); 2792 2793 if (dist < smallestDistSoFar) { 2794 smallestDistSoFar = dist; 2795 bestMatchingScreen = cl; 2796 } 2797 } 2798 } 2799 return bestMatchingScreen; 2800 } 2801 2802 // This is used to compute the visual center of the dragView. This point is then 2803 // used to visualize drop locations and determine where to drop an item. The idea is that 2804 // the visual center represents the user's interpretation of where the item is, and hence 2805 // is the appropriate point to use when determining drop location. 2806 private float[] getDragViewVisualCenter(int x, int y, int xOffset, int yOffset, 2807 DragView dragView, float[] recycle) { 2808 float res[]; 2809 if (recycle == null) { 2810 res = new float[2]; 2811 } else { 2812 res = recycle; 2813 } 2814 2815 // First off, the drag view has been shifted in a way that is not represented in the 2816 // x and y values or the x/yOffsets. Here we account for that shift. 2817 x += getResources().getDimensionPixelSize(R.dimen.dragViewOffsetX); 2818 y += getResources().getDimensionPixelSize(R.dimen.dragViewOffsetY); 2819 2820 // These represent the visual top and left of drag view if a dragRect was provided. 2821 // If a dragRect was not provided, then they correspond to the actual view left and 2822 // top, as the dragRect is in that case taken to be the entire dragView. 2823 // R.dimen.dragViewOffsetY. 2824 int left = x - xOffset; 2825 int top = y - yOffset; 2826 2827 // In order to find the visual center, we shift by half the dragRect 2828 res[0] = left + dragView.getDragRegion().width() / 2; 2829 res[1] = top + dragView.getDragRegion().height() / 2; 2830 2831 return res; 2832 } 2833 2834 private boolean isDragWidget(DragObject d) { 2835 return (d.dragInfo instanceof LauncherAppWidgetInfo || 2836 d.dragInfo instanceof PendingAddWidgetInfo); 2837 } 2838 private boolean isExternalDragWidget(DragObject d) { 2839 return d.dragSource != this && isDragWidget(d); 2840 } 2841 2842 public void onDragOver(DragObject d) { 2843 // Skip drag over events while we are dragging over side pages 2844 if (mInScrollArea || mIsSwitchingState || mState == State.SMALL) return; 2845 2846 Rect r = new Rect(); 2847 CellLayout layout = null; 2848 ItemInfo item = (ItemInfo) d.dragInfo; 2849 2850 // Ensure that we have proper spans for the item that we are dropping 2851 if (item.spanX < 0 || item.spanY < 0) throw new RuntimeException("Improper spans found"); 2852 mDragViewVisualCenter = getDragViewVisualCenter(d.x, d.y, d.xOffset, d.yOffset, 2853 d.dragView, mDragViewVisualCenter); 2854 2855 final View child = (mDragInfo == null) ? null : mDragInfo.cell; 2856 // Identify whether we have dragged over a side page 2857 if (isSmall()) { 2858 if (mLauncher.getHotseat() != null && !isExternalDragWidget(d)) { 2859 if (isPointInSelfOverHotseat(d.x, d.y, r)) { 2860 layout = mLauncher.getHotseat().getLayout(); 2861 } 2862 } 2863 if (layout == null) { 2864 layout = findMatchingPageForDragOver(d.dragView, d.x, d.y, false); 2865 } 2866 if (layout != mDragTargetLayout) { 2867 setCurrentDropLayout(layout); 2868 setCurrentDragOverlappingLayout(layout); 2869 2870 boolean isInSpringLoadedMode = (mState == State.SPRING_LOADED); 2871 if (isInSpringLoadedMode) { 2872 if (mLauncher.isHotseatLayout(layout)) { 2873 mSpringLoadedDragController.cancel(); 2874 } else { 2875 mSpringLoadedDragController.setAlarm(mDragTargetLayout); 2876 } 2877 } 2878 } 2879 } else { 2880 // Test to see if we are over the hotseat otherwise just use the current page 2881 if (mLauncher.getHotseat() != null && !isDragWidget(d)) { 2882 if (isPointInSelfOverHotseat(d.x, d.y, r)) { 2883 layout = mLauncher.getHotseat().getLayout(); 2884 } 2885 } 2886 if (layout == null) { 2887 layout = getCurrentDropLayout(); 2888 } 2889 if (layout != mDragTargetLayout) { 2890 setCurrentDropLayout(layout); 2891 setCurrentDragOverlappingLayout(layout); 2892 } 2893 } 2894 2895 // Handle the drag over 2896 if (mDragTargetLayout != null) { 2897 // We want the point to be mapped to the dragTarget. 2898 if (mLauncher.isHotseatLayout(mDragTargetLayout)) { 2899 mapPointFromSelfToHotseatLayout(mLauncher.getHotseat(), mDragViewVisualCenter); 2900 } else { 2901 mapPointFromSelfToChild(mDragTargetLayout, mDragViewVisualCenter, null); 2902 } 2903 2904 ItemInfo info = (ItemInfo) d.dragInfo; 2905 2906 mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], 2907 (int) mDragViewVisualCenter[1], item.spanX, item.spanY, 2908 mDragTargetLayout, mTargetCell); 2909 2910 setCurrentDropOverCell(mTargetCell[0], mTargetCell[1]); 2911 2912 float targetCellDistance = mDragTargetLayout.getDistanceFromCell( 2913 mDragViewVisualCenter[0], mDragViewVisualCenter[1], mTargetCell); 2914 2915 final View dragOverView = mDragTargetLayout.getChildAt(mTargetCell[0], 2916 mTargetCell[1]); 2917 2918 manageFolderFeedback(info, mDragTargetLayout, mTargetCell, 2919 targetCellDistance, dragOverView); 2920 2921 int minSpanX = item.spanX; 2922 int minSpanY = item.spanY; 2923 if (item.minSpanX > 0 && item.minSpanY > 0) { 2924 minSpanX = item.minSpanX; 2925 minSpanY = item.minSpanY; 2926 } 2927 2928 boolean nearestDropOccupied = mDragTargetLayout.isNearestDropLocationOccupied((int) 2929 mDragViewVisualCenter[0], (int) mDragViewVisualCenter[1], item.spanX, 2930 item.spanY, child, mTargetCell); 2931 2932 if (!nearestDropOccupied) { 2933 mDragTargetLayout.visualizeDropLocation(child, mDragOutline, 2934 (int) mDragViewVisualCenter[0], (int) mDragViewVisualCenter[1], 2935 mTargetCell[0], mTargetCell[1], item.spanX, item.spanY, false, 2936 d.dragView.getDragVisualizeOffset(), d.dragView.getDragRegion()); 2937 } else if ((mDragMode == DRAG_MODE_NONE || mDragMode == DRAG_MODE_REORDER) 2938 && !mReorderAlarm.alarmPending() && (mLastReorderX != mTargetCell[0] || 2939 mLastReorderY != mTargetCell[1])) { 2940 2941 // Otherwise, if we aren't adding to or creating a folder and there's no pending 2942 // reorder, then we schedule a reorder 2943 ReorderAlarmListener listener = new ReorderAlarmListener(mDragViewVisualCenter, 2944 minSpanX, minSpanY, item.spanX, item.spanY, d.dragView, child); 2945 mReorderAlarm.setOnAlarmListener(listener); 2946 mReorderAlarm.setAlarm(REORDER_TIMEOUT); 2947 } 2948 2949 if (mDragMode == DRAG_MODE_CREATE_FOLDER || mDragMode == DRAG_MODE_ADD_TO_FOLDER || 2950 !nearestDropOccupied) { 2951 if (mDragTargetLayout != null) { 2952 mDragTargetLayout.revertTempState(); 2953 } 2954 } 2955 } 2956 } 2957 2958 private void manageFolderFeedback(ItemInfo info, CellLayout targetLayout, 2959 int[] targetCell, float distance, View dragOverView) { 2960 boolean userFolderPending = willCreateUserFolder(info, targetLayout, targetCell, distance, 2961 false); 2962 2963 if (mDragMode == DRAG_MODE_NONE && userFolderPending && 2964 !mFolderCreationAlarm.alarmPending()) { 2965 mFolderCreationAlarm.setOnAlarmListener(new 2966 FolderCreationAlarmListener(targetLayout, targetCell[0], targetCell[1])); 2967 mFolderCreationAlarm.setAlarm(FOLDER_CREATION_TIMEOUT); 2968 return; 2969 } 2970 2971 boolean willAddToFolder = 2972 willAddToExistingUserFolder(info, targetLayout, targetCell, distance); 2973 2974 if (willAddToFolder && mDragMode == DRAG_MODE_NONE) { 2975 mDragOverFolderIcon = ((FolderIcon) dragOverView); 2976 mDragOverFolderIcon.onDragEnter(info); 2977 if (targetLayout != null) { 2978 targetLayout.clearDragOutlines(); 2979 } 2980 setDragMode(DRAG_MODE_ADD_TO_FOLDER); 2981 return; 2982 } 2983 2984 if (mDragMode == DRAG_MODE_ADD_TO_FOLDER && !willAddToFolder) { 2985 setDragMode(DRAG_MODE_NONE); 2986 } 2987 if (mDragMode == DRAG_MODE_CREATE_FOLDER && !userFolderPending) { 2988 setDragMode(DRAG_MODE_NONE); 2989 } 2990 2991 return; 2992 } 2993 2994 class FolderCreationAlarmListener implements OnAlarmListener { 2995 CellLayout layout; 2996 int cellX; 2997 int cellY; 2998 2999 public FolderCreationAlarmListener(CellLayout layout, int cellX, int cellY) { 3000 this.layout = layout; 3001 this.cellX = cellX; 3002 this.cellY = cellY; 3003 } 3004 3005 public void onAlarm(Alarm alarm) { 3006 if (mDragFolderRingAnimator == null) { 3007 mDragFolderRingAnimator = new FolderRingAnimator(mLauncher, null); 3008 } 3009 mDragFolderRingAnimator.setCell(cellX, cellY); 3010 mDragFolderRingAnimator.setCellLayout(layout); 3011 mDragFolderRingAnimator.animateToAcceptState(); 3012 layout.showFolderAccept(mDragFolderRingAnimator); 3013 layout.clearDragOutlines(); 3014 setDragMode(DRAG_MODE_CREATE_FOLDER); 3015 } 3016 } 3017 3018 class ReorderAlarmListener implements OnAlarmListener { 3019 float[] dragViewCenter; 3020 int minSpanX, minSpanY, spanX, spanY; 3021 DragView dragView; 3022 View child; 3023 3024 public ReorderAlarmListener(float[] dragViewCenter, int minSpanX, int minSpanY, int spanX, 3025 int spanY, DragView dragView, View child) { 3026 this.dragViewCenter = dragViewCenter; 3027 this.minSpanX = minSpanX; 3028 this.minSpanY = minSpanY; 3029 this.spanX = spanX; 3030 this.spanY = spanY; 3031 this.child = child; 3032 this.dragView = dragView; 3033 } 3034 3035 public void onAlarm(Alarm alarm) { 3036 int[] resultSpan = new int[2]; 3037 mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], 3038 (int) mDragViewVisualCenter[1], spanX, spanY, mDragTargetLayout, mTargetCell); 3039 mLastReorderX = mTargetCell[0]; 3040 mLastReorderY = mTargetCell[1]; 3041 3042 mTargetCell = mDragTargetLayout.createArea((int) mDragViewVisualCenter[0], 3043 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, spanX, spanY, 3044 child, mTargetCell, resultSpan, CellLayout.MODE_DRAG_OVER); 3045 3046 if (mTargetCell[0] < 0 || mTargetCell[1] < 0) { 3047 mDragTargetLayout.revertTempState(); 3048 } else { 3049 setDragMode(DRAG_MODE_REORDER); 3050 } 3051 3052 boolean resize = resultSpan[0] != spanX || resultSpan[1] != spanY; 3053 mDragTargetLayout.visualizeDropLocation(child, mDragOutline, 3054 (int) mDragViewVisualCenter[0], (int) mDragViewVisualCenter[1], 3055 mTargetCell[0], mTargetCell[1], resultSpan[0], resultSpan[1], resize, 3056 dragView.getDragVisualizeOffset(), dragView.getDragRegion()); 3057 } 3058 } 3059 3060 @Override 3061 public void getHitRectRelativeToDragLayer(Rect outRect) { 3062 // We want the workspace to have the whole area of the display (it will find the correct 3063 // cell layout to drop to in the existing drag/drop logic. 3064 mLauncher.getDragLayer().getDescendantRectRelativeToSelf(this, outRect); 3065 } 3066 3067 /** 3068 * Add the item specified by dragInfo to the given layout. 3069 * @return true if successful 3070 */ 3071 public boolean addExternalItemToScreen(ItemInfo dragInfo, CellLayout layout) { 3072 if (layout.findCellForSpan(mTempEstimate, dragInfo.spanX, dragInfo.spanY)) { 3073 onDropExternal(dragInfo.dropPos, (ItemInfo) dragInfo, (CellLayout) layout, false); 3074 return true; 3075 } 3076 mLauncher.showOutOfSpaceMessage(mLauncher.isHotseatLayout(layout)); 3077 return false; 3078 } 3079 3080 private void onDropExternal(int[] touchXY, Object dragInfo, 3081 CellLayout cellLayout, boolean insertAtFirst) { 3082 onDropExternal(touchXY, dragInfo, cellLayout, insertAtFirst, null); 3083 } 3084 3085 /** 3086 * Drop an item that didn't originate on one of the workspace screens. 3087 * It may have come from Launcher (e.g. from all apps or customize), or it may have 3088 * come from another app altogether. 3089 * 3090 * NOTE: This can also be called when we are outside of a drag event, when we want 3091 * to add an item to one of the workspace screens. 3092 */ 3093 private void onDropExternal(final int[] touchXY, final Object dragInfo, 3094 final CellLayout cellLayout, boolean insertAtFirst, DragObject d) { 3095 final Runnable exitSpringLoadedRunnable = new Runnable() { 3096 @Override 3097 public void run() { 3098 mLauncher.exitSpringLoadedDragModeDelayed(true, false, null); 3099 } 3100 }; 3101 3102 ItemInfo info = (ItemInfo) dragInfo; 3103 int spanX = info.spanX; 3104 int spanY = info.spanY; 3105 if (mDragInfo != null) { 3106 spanX = mDragInfo.spanX; 3107 spanY = mDragInfo.spanY; 3108 } 3109 3110 final long container = mLauncher.isHotseatLayout(cellLayout) ? 3111 LauncherSettings.Favorites.CONTAINER_HOTSEAT : 3112 LauncherSettings.Favorites.CONTAINER_DESKTOP; 3113 final long screenId = getIdForScreen(cellLayout); 3114 if (!mLauncher.isHotseatLayout(cellLayout) 3115 && screenId != getScreenIdForPageIndex(mCurrentPage) 3116 && mState != State.SPRING_LOADED) { 3117 snapToScreenId(screenId, null); 3118 } 3119 3120 if (info instanceof PendingAddItemInfo) { 3121 final PendingAddItemInfo pendingInfo = (PendingAddItemInfo) dragInfo; 3122 3123 boolean findNearestVacantCell = true; 3124 if (pendingInfo.itemType == LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT) { 3125 mTargetCell = findNearestArea((int) touchXY[0], (int) touchXY[1], spanX, spanY, 3126 cellLayout, mTargetCell); 3127 float distance = cellLayout.getDistanceFromCell(mDragViewVisualCenter[0], 3128 mDragViewVisualCenter[1], mTargetCell); 3129 if (willCreateUserFolder((ItemInfo) d.dragInfo, cellLayout, mTargetCell, 3130 distance, true) || willAddToExistingUserFolder((ItemInfo) d.dragInfo, 3131 cellLayout, mTargetCell, distance)) { 3132 findNearestVacantCell = false; 3133 } 3134 } 3135 3136 final ItemInfo item = (ItemInfo) d.dragInfo; 3137 boolean updateWidgetSize = false; 3138 if (findNearestVacantCell) { 3139 int minSpanX = item.spanX; 3140 int minSpanY = item.spanY; 3141 if (item.minSpanX > 0 && item.minSpanY > 0) { 3142 minSpanX = item.minSpanX; 3143 minSpanY = item.minSpanY; 3144 } 3145 int[] resultSpan = new int[2]; 3146 mTargetCell = cellLayout.createArea((int) mDragViewVisualCenter[0], 3147 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, info.spanX, info.spanY, 3148 null, mTargetCell, resultSpan, CellLayout.MODE_ON_DROP_EXTERNAL); 3149 3150 if (resultSpan[0] != item.spanX || resultSpan[1] != item.spanY) { 3151 updateWidgetSize = true; 3152 } 3153 item.spanX = resultSpan[0]; 3154 item.spanY = resultSpan[1]; 3155 } 3156 3157 Runnable onAnimationCompleteRunnable = new Runnable() { 3158 @Override 3159 public void run() { 3160 // When dragging and dropping from customization tray, we deal with creating 3161 // widgets/shortcuts/folders in a slightly different way 3162 switch (pendingInfo.itemType) { 3163 case LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET: 3164 int span[] = new int[2]; 3165 span[0] = item.spanX; 3166 span[1] = item.spanY; 3167 mLauncher.addAppWidgetFromDrop((PendingAddWidgetInfo) pendingInfo, 3168 container, screenId, mTargetCell, span, null); 3169 break; 3170 case LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT: 3171 mLauncher.processShortcutFromDrop(pendingInfo.componentName, 3172 container, screenId, mTargetCell, null); 3173 break; 3174 default: 3175 throw new IllegalStateException("Unknown item type: " + 3176 pendingInfo.itemType); 3177 } 3178 } 3179 }; 3180 View finalView = pendingInfo.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET 3181 ? ((PendingAddWidgetInfo) pendingInfo).boundWidget : null; 3182 3183 if (finalView instanceof AppWidgetHostView && updateWidgetSize) { 3184 AppWidgetHostView awhv = (AppWidgetHostView) finalView; 3185 AppWidgetResizeFrame.updateWidgetSizeRanges(awhv, mLauncher, item.spanX, 3186 item.spanY); 3187 } 3188 3189 int animationStyle = ANIMATE_INTO_POSITION_AND_DISAPPEAR; 3190 if (pendingInfo.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET && 3191 ((PendingAddWidgetInfo) pendingInfo).info.configure != null) { 3192 animationStyle = ANIMATE_INTO_POSITION_AND_REMAIN; 3193 } 3194 animateWidgetDrop(info, cellLayout, d.dragView, onAnimationCompleteRunnable, 3195 animationStyle, finalView, true); 3196 } else { 3197 // This is for other drag/drop cases, like dragging from All Apps 3198 View view = null; 3199 3200 switch (info.itemType) { 3201 case LauncherSettings.Favorites.ITEM_TYPE_APPLICATION: 3202 case LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT: 3203 if (info.container == NO_ID && info instanceof ApplicationInfo) { 3204 // Came from all apps -- make a copy 3205 info = new ShortcutInfo((ApplicationInfo) info); 3206 } 3207 view = mLauncher.createShortcut(R.layout.application, cellLayout, 3208 (ShortcutInfo) info); 3209 break; 3210 case LauncherSettings.Favorites.ITEM_TYPE_FOLDER: 3211 view = FolderIcon.fromXml(R.layout.folder_icon, mLauncher, cellLayout, 3212 (FolderInfo) info, mIconCache); 3213 break; 3214 default: 3215 throw new IllegalStateException("Unknown item type: " + info.itemType); 3216 } 3217 3218 // First we find the cell nearest to point at which the item is 3219 // dropped, without any consideration to whether there is an item there. 3220 if (touchXY != null) { 3221 mTargetCell = findNearestArea((int) touchXY[0], (int) touchXY[1], spanX, spanY, 3222 cellLayout, mTargetCell); 3223 float distance = cellLayout.getDistanceFromCell(mDragViewVisualCenter[0], 3224 mDragViewVisualCenter[1], mTargetCell); 3225 d.postAnimationRunnable = exitSpringLoadedRunnable; 3226 if (createUserFolderIfNecessary(view, container, cellLayout, mTargetCell, distance, 3227 true, d.dragView, d.postAnimationRunnable)) { 3228 return; 3229 } 3230 if (addToExistingFolderIfNecessary(view, cellLayout, mTargetCell, distance, d, 3231 true)) { 3232 return; 3233 } 3234 } 3235 3236 if (touchXY != null) { 3237 // when dragging and dropping, just find the closest free spot 3238 mTargetCell = cellLayout.createArea((int) mDragViewVisualCenter[0], 3239 (int) mDragViewVisualCenter[1], 1, 1, 1, 1, 3240 null, mTargetCell, null, CellLayout.MODE_ON_DROP_EXTERNAL); 3241 } else { 3242 cellLayout.findCellForSpan(mTargetCell, 1, 1); 3243 } 3244 addInScreen(view, container, screenId, mTargetCell[0], mTargetCell[1], info.spanX, 3245 info.spanY, insertAtFirst); 3246 cellLayout.onDropChild(view); 3247 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) view.getLayoutParams(); 3248 cellLayout.getShortcutsAndWidgets().measureChild(view); 3249 3250 LauncherModel.addOrMoveItemInDatabase(mLauncher, info, container, screenId, 3251 lp.cellX, lp.cellY); 3252 3253 if (d.dragView != null) { 3254 // We wrap the animation call in the temporary set and reset of the current 3255 // cellLayout to its final transform -- this means we animate the drag view to 3256 // the correct final location. 3257 setFinalTransitionTransform(cellLayout); 3258 mLauncher.getDragLayer().animateViewIntoPosition(d.dragView, view, 3259 exitSpringLoadedRunnable); 3260 resetTransitionTransform(cellLayout); 3261 } 3262 } 3263 } 3264 3265 public Bitmap createWidgetBitmap(ItemInfo widgetInfo, View layout) { 3266 int[] unScaledSize = mLauncher.getWorkspace().estimateItemSize(widgetInfo.spanX, 3267 widgetInfo.spanY, widgetInfo, false); 3268 int visibility = layout.getVisibility(); 3269 layout.setVisibility(VISIBLE); 3270 3271 int width = MeasureSpec.makeMeasureSpec(unScaledSize[0], MeasureSpec.EXACTLY); 3272 int height = MeasureSpec.makeMeasureSpec(unScaledSize[1], MeasureSpec.EXACTLY); 3273 Bitmap b = Bitmap.createBitmap(unScaledSize[0], unScaledSize[1], 3274 Bitmap.Config.ARGB_8888); 3275 Canvas c = new Canvas(b); 3276 3277 layout.measure(width, height); 3278 layout.layout(0, 0, unScaledSize[0], unScaledSize[1]); 3279 layout.draw(c); 3280 c.setBitmap(null); 3281 layout.setVisibility(visibility); 3282 return b; 3283 } 3284 3285 private void getFinalPositionForDropAnimation(int[] loc, float[] scaleXY, 3286 DragView dragView, CellLayout layout, ItemInfo info, int[] targetCell, 3287 boolean external, boolean scale) { 3288 // Now we animate the dragView, (ie. the widget or shortcut preview) into its final 3289 // location and size on the home screen. 3290 int spanX = info.spanX; 3291 int spanY = info.spanY; 3292 3293 Rect r = estimateItemPosition(layout, info, targetCell[0], targetCell[1], spanX, spanY); 3294 loc[0] = r.left; 3295 loc[1] = r.top; 3296 3297 setFinalTransitionTransform(layout); 3298 float cellLayoutScale = 3299 mLauncher.getDragLayer().getDescendantCoordRelativeToSelf(layout, loc, true); 3300 resetTransitionTransform(layout); 3301 3302 float dragViewScaleX; 3303 float dragViewScaleY; 3304 if (scale) { 3305 dragViewScaleX = (1.0f * r.width()) / dragView.getMeasuredWidth(); 3306 dragViewScaleY = (1.0f * r.height()) / dragView.getMeasuredHeight(); 3307 } else { 3308 dragViewScaleX = 1f; 3309 dragViewScaleY = 1f; 3310 } 3311 3312 // The animation will scale the dragView about its center, so we need to center about 3313 // the final location. 3314 loc[0] -= (dragView.getMeasuredWidth() - cellLayoutScale * r.width()) / 2; 3315 loc[1] -= (dragView.getMeasuredHeight() - cellLayoutScale * r.height()) / 2; 3316 3317 scaleXY[0] = dragViewScaleX * cellLayoutScale; 3318 scaleXY[1] = dragViewScaleY * cellLayoutScale; 3319 } 3320 3321 public void animateWidgetDrop(ItemInfo info, CellLayout cellLayout, DragView dragView, 3322 final Runnable onCompleteRunnable, int animationType, final View finalView, 3323 boolean external) { 3324 Rect from = new Rect(); 3325 mLauncher.getDragLayer().getViewRectRelativeToSelf(dragView, from); 3326 3327 int[] finalPos = new int[2]; 3328 float scaleXY[] = new float[2]; 3329 boolean scalePreview = !(info instanceof PendingAddShortcutInfo); 3330 getFinalPositionForDropAnimation(finalPos, scaleXY, dragView, cellLayout, info, mTargetCell, 3331 external, scalePreview); 3332 3333 Resources res = mLauncher.getResources(); 3334 int duration = res.getInteger(R.integer.config_dropAnimMaxDuration) - 200; 3335 3336 // In the case where we've prebound the widget, we remove it from the DragLayer 3337 if (finalView instanceof AppWidgetHostView && external) { 3338 Log.d(TAG, "6557954 Animate widget drop, final view is appWidgetHostView"); 3339 mLauncher.getDragLayer().removeView(finalView); 3340 } 3341 if ((animationType == ANIMATE_INTO_POSITION_AND_RESIZE || external) && finalView != null) { 3342 Bitmap crossFadeBitmap = createWidgetBitmap(info, finalView); 3343 dragView.setCrossFadeBitmap(crossFadeBitmap); 3344 dragView.crossFade((int) (duration * 0.8f)); 3345 } else if (info.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET && external) { 3346 scaleXY[0] = scaleXY[1] = Math.min(scaleXY[0], scaleXY[1]); 3347 } 3348 3349 DragLayer dragLayer = mLauncher.getDragLayer(); 3350 if (animationType == CANCEL_TWO_STAGE_WIDGET_DROP_ANIMATION) { 3351 mLauncher.getDragLayer().animateViewIntoPosition(dragView, finalPos, 0f, 0.1f, 0.1f, 3352 DragLayer.ANIMATION_END_DISAPPEAR, onCompleteRunnable, duration); 3353 } else { 3354 int endStyle; 3355 if (animationType == ANIMATE_INTO_POSITION_AND_REMAIN) { 3356 endStyle = DragLayer.ANIMATION_END_REMAIN_VISIBLE; 3357 } else { 3358 endStyle = DragLayer.ANIMATION_END_DISAPPEAR;; 3359 } 3360 3361 Runnable onComplete = new Runnable() { 3362 @Override 3363 public void run() { 3364 if (finalView != null) { 3365 finalView.setVisibility(VISIBLE); 3366 } 3367 if (onCompleteRunnable != null) { 3368 onCompleteRunnable.run(); 3369 } 3370 } 3371 }; 3372 dragLayer.animateViewIntoPosition(dragView, from.left, from.top, finalPos[0], 3373 finalPos[1], 1, 1, 1, scaleXY[0], scaleXY[1], onComplete, endStyle, 3374 duration, this); 3375 } 3376 } 3377 3378 public void setFinalTransitionTransform(CellLayout layout) { 3379 if (isSwitchingState()) { 3380 mCurrentScale = getScaleX(); 3381 setScaleX(mNewScale); 3382 setScaleY(mNewScale); 3383 } 3384 } 3385 public void resetTransitionTransform(CellLayout layout) { 3386 if (isSwitchingState()) { 3387 setScaleX(mCurrentScale); 3388 setScaleY(mCurrentScale); 3389 } 3390 } 3391 3392 /** 3393 * Return the current {@link CellLayout}, correctly picking the destination 3394 * screen while a scroll is in progress. 3395 */ 3396 public CellLayout getCurrentDropLayout() { 3397 return (CellLayout) getChildAt(getNextPage()); 3398 } 3399 3400 /** 3401 * Return the current CellInfo describing our current drag; this method exists 3402 * so that Launcher can sync this object with the correct info when the activity is created/ 3403 * destroyed 3404 * 3405 */ 3406 public CellLayout.CellInfo getDragInfo() { 3407 return mDragInfo; 3408 } 3409 3410 /** 3411 * Calculate the nearest cell where the given object would be dropped. 3412 * 3413 * pixelX and pixelY should be in the coordinate system of layout 3414 */ 3415 private int[] findNearestArea(int pixelX, int pixelY, 3416 int spanX, int spanY, CellLayout layout, int[] recycle) { 3417 return layout.findNearestArea( 3418 pixelX, pixelY, spanX, spanY, recycle); 3419 } 3420 3421 void setup(DragController dragController) { 3422 mSpringLoadedDragController = new SpringLoadedDragController(mLauncher); 3423 mDragController = dragController; 3424 3425 // hardware layers on children are enabled on startup, but should be disabled until 3426 // needed 3427 updateChildrenLayersEnabled(false); 3428 setWallpaperDimension(); 3429 } 3430 3431 /** 3432 * Called at the end of a drag which originated on the workspace. 3433 */ 3434 public void onDropCompleted(final View target, final DragObject d, 3435 final boolean isFlingToDelete, final boolean success) { 3436 if (mDeferDropAfterUninstall) { 3437 mDeferredAction = new Runnable() { 3438 public void run() { 3439 onDropCompleted(target, d, isFlingToDelete, success); 3440 mDeferredAction = null; 3441 } 3442 }; 3443 return; 3444 } 3445 3446 boolean beingCalledAfterUninstall = mDeferredAction != null; 3447 3448 if (success && !(beingCalledAfterUninstall && !mUninstallSuccessful)) { 3449 if (target != this && mDragInfo != null) { 3450 getParentCellLayoutForView(mDragInfo.cell).removeView(mDragInfo.cell); 3451 if (mDragInfo.cell instanceof DropTarget) { 3452 mDragController.removeDropTarget((DropTarget) mDragInfo.cell); 3453 } 3454 // If we move the item to anything not on the Workspace, check if any empty 3455 // screens need to be removed. If we dropped back on the workspace, this will 3456 // be done post drop animation. 3457 stripEmptyScreens(); 3458 } 3459 } else if (mDragInfo != null) { 3460 CellLayout cellLayout; 3461 if (mLauncher.isHotseatLayout(target)) { 3462 cellLayout = mLauncher.getHotseat().getLayout(); 3463 } else { 3464 cellLayout = getScreenWithId(mDragInfo.screenId); 3465 } 3466 cellLayout.onDropChild(mDragInfo.cell); 3467 } 3468 if ((d.cancelled || (beingCalledAfterUninstall && !mUninstallSuccessful)) 3469 && mDragInfo.cell != null) { 3470 mDragInfo.cell.setVisibility(VISIBLE); 3471 } 3472 mDragOutline = null; 3473 mDragInfo = null; 3474 } 3475 3476 public void deferCompleteDropAfterUninstallActivity() { 3477 mDeferDropAfterUninstall = true; 3478 } 3479 3480 /// maybe move this into a smaller part 3481 public void onUninstallActivityReturned(boolean success) { 3482 mDeferDropAfterUninstall = false; 3483 mUninstallSuccessful = success; 3484 if (mDeferredAction != null) { 3485 mDeferredAction.run(); 3486 } 3487 } 3488 3489 void updateItemLocationsInDatabase(CellLayout cl) { 3490 int count = cl.getShortcutsAndWidgets().getChildCount(); 3491 3492 long screenId = getIdForScreen(cl); 3493 int container = Favorites.CONTAINER_DESKTOP; 3494 3495 if (mLauncher.isHotseatLayout(cl)) { 3496 screenId = -1; 3497 container = Favorites.CONTAINER_HOTSEAT; 3498 } 3499 3500 for (int i = 0; i < count; i++) { 3501 View v = cl.getShortcutsAndWidgets().getChildAt(i); 3502 ItemInfo info = (ItemInfo) v.getTag(); 3503 // Null check required as the AllApps button doesn't have an item info 3504 if (info != null && info.requiresDbUpdate) { 3505 info.requiresDbUpdate = false; 3506 LauncherModel.modifyItemInDatabase(mLauncher, info, container, screenId, info.cellX, 3507 info.cellY, info.spanX, info.spanY); 3508 } 3509 } 3510 } 3511 3512 ArrayList<ComponentName> stripDuplicateApps() { 3513 ArrayList<ComponentName> uniqueIntents = new ArrayList<ComponentName>(); 3514 stripDuplicateApps((CellLayout) mLauncher.getHotseat().getLayout(), uniqueIntents); 3515 int count = getChildCount(); 3516 for (int i = 0; i < count; i++) { 3517 CellLayout cl = (CellLayout) getChildAt(i); 3518 stripDuplicateApps(cl, uniqueIntents); 3519 } 3520 return uniqueIntents; 3521 } 3522 3523 void stripDuplicateApps(CellLayout cl, ArrayList<ComponentName> uniqueIntents) { 3524 int count = cl.getShortcutsAndWidgets().getChildCount(); 3525 3526 ArrayList<View> children = new ArrayList<View>(); 3527 for (int i = 0; i < count; i++) { 3528 View v = cl.getShortcutsAndWidgets().getChildAt(i); 3529 children.add(v); 3530 } 3531 3532 for (int i = 0; i < count; i++) { 3533 View v = children.get(i); 3534 ItemInfo info = (ItemInfo) v.getTag(); 3535 // Null check required as the AllApps button doesn't have an item info 3536 if (info instanceof ShortcutInfo) { 3537 ShortcutInfo si = (ShortcutInfo) info; 3538 ComponentName cn = si.intent.getComponent(); 3539 3540 if (si.itemType == LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT) { 3541 continue; 3542 } 3543 3544 if (!uniqueIntents.contains(cn)) { 3545 uniqueIntents.add(cn); 3546 } else { 3547 cl.removeViewInLayout(v); 3548 LauncherModel.deleteItemFromDatabase(mLauncher, si); 3549 } 3550 } 3551 if (v instanceof FolderIcon) { 3552 FolderIcon fi = (FolderIcon) v; 3553 ArrayList<View> items = fi.getFolder().getItemsInReadingOrder(); 3554 for (int j = 0; j < items.size(); j++) { 3555 if (items.get(j).getTag() instanceof ShortcutInfo) { 3556 ShortcutInfo si = (ShortcutInfo) items.get(j).getTag(); 3557 ComponentName cn = si.intent.getComponent(); 3558 3559 if (si.itemType == LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT) { 3560 continue; 3561 } 3562 if (!uniqueIntents.contains(cn)) { 3563 uniqueIntents.add(cn); 3564 } else { 3565 fi.getFolderInfo().remove(si); 3566 LauncherModel.deleteItemFromDatabase(mLauncher, si); 3567 } 3568 } 3569 } 3570 } 3571 } 3572 } 3573 3574 void saveWorkspaceToDb() { 3575 saveWorkspaceScreenToDb((CellLayout) mLauncher.getHotseat().getLayout()); 3576 int count = getChildCount(); 3577 for (int i = 0; i < count; i++) { 3578 CellLayout cl = (CellLayout) getChildAt(i); 3579 saveWorkspaceScreenToDb(cl); 3580 } 3581 } 3582 3583 void saveWorkspaceScreenToDb(CellLayout cl) { 3584 int count = cl.getShortcutsAndWidgets().getChildCount(); 3585 3586 long screenId = getIdForScreen(cl); 3587 int container = Favorites.CONTAINER_DESKTOP; 3588 3589 Hotseat hotseat = mLauncher.getHotseat(); 3590 if (mLauncher.isHotseatLayout(cl)) { 3591 screenId = -1; 3592 container = Favorites.CONTAINER_HOTSEAT; 3593 } 3594 3595 for (int i = 0; i < count; i++) { 3596 View v = cl.getShortcutsAndWidgets().getChildAt(i); 3597 ItemInfo info = (ItemInfo) v.getTag(); 3598 // Null check required as the AllApps button doesn't have an item info 3599 if (info != null) { 3600 int cellX = info.cellX; 3601 int cellY = info.cellY; 3602 if (container == Favorites.CONTAINER_HOTSEAT) { 3603 cellX = hotseat.getCellXFromOrder((int) info.screenId); 3604 cellY = hotseat.getCellYFromOrder((int) info.screenId); 3605 } 3606 LauncherModel.addItemToDatabase(mLauncher, info, container, screenId, cellX, 3607 cellY, false); 3608 } 3609 if (v instanceof FolderIcon) { 3610 FolderIcon fi = (FolderIcon) v; 3611 fi.getFolder().addItemLocationsInDatabase(); 3612 } 3613 } 3614 } 3615 3616 @Override 3617 public boolean supportsFlingToDelete() { 3618 return true; 3619 } 3620 3621 @Override 3622 public void onFlingToDelete(DragObject d, int x, int y, PointF vec) { 3623 // Do nothing 3624 } 3625 3626 @Override 3627 public void onFlingToDeleteCompleted() { 3628 // Do nothing 3629 } 3630 3631 public boolean isDropEnabled() { 3632 return true; 3633 } 3634 3635 @Override 3636 protected void onRestoreInstanceState(Parcelable state) { 3637 super.onRestoreInstanceState(state); 3638 Launcher.setScreen(mCurrentPage); 3639 } 3640 3641 @Override 3642 protected void dispatchRestoreInstanceState(SparseArray<Parcelable> container) { 3643 // We don't dispatch restoreInstanceState to our children using this code path. 3644 // Some pages will be restored immediately as their items are bound immediately, and 3645 // others we will need to wait until after their items are bound. 3646 mSavedStates = container; 3647 } 3648 3649 public void restoreInstanceStateForChild(int child) { 3650 if (mSavedStates != null) { 3651 mRestoredPages.add(child); 3652 CellLayout cl = (CellLayout) getChildAt(child); 3653 cl.restoreInstanceState(mSavedStates); 3654 } 3655 } 3656 3657 public void restoreInstanceStateForRemainingPages() { 3658 int count = getChildCount(); 3659 for (int i = 0; i < count; i++) { 3660 if (!mRestoredPages.contains(i)) { 3661 restoreInstanceStateForChild(i); 3662 } 3663 } 3664 mRestoredPages.clear(); 3665 } 3666 3667 @Override 3668 public void scrollLeft() { 3669 if (!isSmall() && !mIsSwitchingState) { 3670 super.scrollLeft(); 3671 } 3672 Folder openFolder = getOpenFolder(); 3673 if (openFolder != null) { 3674 openFolder.completeDragExit(); 3675 } 3676 } 3677 3678 @Override 3679 public void scrollRight() { 3680 if (!isSmall() && !mIsSwitchingState) { 3681 super.scrollRight(); 3682 } 3683 Folder openFolder = getOpenFolder(); 3684 if (openFolder != null) { 3685 openFolder.completeDragExit(); 3686 } 3687 } 3688 3689 @Override 3690 public boolean onEnterScrollArea(int x, int y, int direction) { 3691 // Ignore the scroll area if we are dragging over the hot seat 3692 boolean isPortrait = !LauncherAppState.isScreenLandscape(getContext()); 3693 if (mLauncher.getHotseat() != null && isPortrait) { 3694 Rect r = new Rect(); 3695 mLauncher.getHotseat().getHitRect(r); 3696 if (r.contains(x, y)) { 3697 return false; 3698 } 3699 } 3700 3701 boolean result = false; 3702 if (!isSmall() && !mIsSwitchingState) { 3703 mInScrollArea = true; 3704 3705 final int page = getNextPage() + 3706 (direction == DragController.SCROLL_LEFT ? -1 : 1); 3707 3708 // We always want to exit the current layout to ensure parity of enter / exit 3709 setCurrentDropLayout(null); 3710 3711 if (0 <= page && page < getChildCount()) { 3712 CellLayout layout = (CellLayout) getChildAt(page); 3713 setCurrentDragOverlappingLayout(layout); 3714 3715 // Workspace is responsible for drawing the edge glow on adjacent pages, 3716 // so we need to redraw the workspace when this may have changed. 3717 invalidate(); 3718 result = true; 3719 } 3720 } 3721 return result; 3722 } 3723 3724 @Override 3725 public boolean onExitScrollArea() { 3726 boolean result = false; 3727 if (mInScrollArea) { 3728 invalidate(); 3729 CellLayout layout = getCurrentDropLayout(); 3730 setCurrentDropLayout(layout); 3731 setCurrentDragOverlappingLayout(layout); 3732 3733 result = true; 3734 mInScrollArea = false; 3735 } 3736 return result; 3737 } 3738 3739 private void onResetScrollArea() { 3740 setCurrentDragOverlappingLayout(null); 3741 mInScrollArea = false; 3742 } 3743 3744 /** 3745 * Returns a specific CellLayout 3746 */ 3747 CellLayout getParentCellLayoutForView(View v) { 3748 ArrayList<CellLayout> layouts = getWorkspaceAndHotseatCellLayouts(); 3749 for (CellLayout layout : layouts) { 3750 if (layout.getShortcutsAndWidgets().indexOfChild(v) > -1) { 3751 return layout; 3752 } 3753 } 3754 return null; 3755 } 3756 3757 /** 3758 * Returns a list of all the CellLayouts in the workspace. 3759 */ 3760 ArrayList<CellLayout> getWorkspaceAndHotseatCellLayouts() { 3761 ArrayList<CellLayout> layouts = new ArrayList<CellLayout>(); 3762 int screenCount = getChildCount(); 3763 for (int screen = 0; screen < screenCount; screen++) { 3764 layouts.add(((CellLayout) getChildAt(screen))); 3765 } 3766 if (mLauncher.getHotseat() != null) { 3767 layouts.add(mLauncher.getHotseat().getLayout()); 3768 } 3769 return layouts; 3770 } 3771 3772 /** 3773 * We should only use this to search for specific children. Do not use this method to modify 3774 * ShortcutsAndWidgetsContainer directly. Includes ShortcutAndWidgetContainers from 3775 * the hotseat and workspace pages 3776 */ 3777 ArrayList<ShortcutAndWidgetContainer> getAllShortcutAndWidgetContainers() { 3778 ArrayList<ShortcutAndWidgetContainer> childrenLayouts = 3779 new ArrayList<ShortcutAndWidgetContainer>(); 3780 int screenCount = getChildCount(); 3781 for (int screen = 0; screen < screenCount; screen++) { 3782 childrenLayouts.add(((CellLayout) getChildAt(screen)).getShortcutsAndWidgets()); 3783 } 3784 if (mLauncher.getHotseat() != null) { 3785 childrenLayouts.add(mLauncher.getHotseat().getLayout().getShortcutsAndWidgets()); 3786 } 3787 return childrenLayouts; 3788 } 3789 3790 public Folder getFolderForTag(Object tag) { 3791 ArrayList<ShortcutAndWidgetContainer> childrenLayouts = 3792 getAllShortcutAndWidgetContainers(); 3793 for (ShortcutAndWidgetContainer layout: childrenLayouts) { 3794 int count = layout.getChildCount(); 3795 for (int i = 0; i < count; i++) { 3796 View child = layout.getChildAt(i); 3797 if (child instanceof Folder) { 3798 Folder f = (Folder) child; 3799 if (f.getInfo() == tag && f.getInfo().opened) { 3800 return f; 3801 } 3802 } 3803 } 3804 } 3805 return null; 3806 } 3807 3808 public View getViewForTag(Object tag) { 3809 ArrayList<ShortcutAndWidgetContainer> childrenLayouts = 3810 getAllShortcutAndWidgetContainers(); 3811 for (ShortcutAndWidgetContainer layout: childrenLayouts) { 3812 int count = layout.getChildCount(); 3813 for (int i = 0; i < count; i++) { 3814 View child = layout.getChildAt(i); 3815 if (child.getTag() == tag) { 3816 return child; 3817 } 3818 } 3819 } 3820 return null; 3821 } 3822 3823 void clearDropTargets() { 3824 ArrayList<ShortcutAndWidgetContainer> childrenLayouts = 3825 getAllShortcutAndWidgetContainers(); 3826 for (ShortcutAndWidgetContainer layout: childrenLayouts) { 3827 int childCount = layout.getChildCount(); 3828 for (int j = 0; j < childCount; j++) { 3829 View v = layout.getChildAt(j); 3830 if (v instanceof DropTarget) { 3831 mDragController.removeDropTarget((DropTarget) v); 3832 } 3833 } 3834 } 3835 } 3836 3837 // Removes ALL items that match a given package name, this is usually called when a package 3838 // has been removed and we want to remove all components (widgets, shortcuts, apps) that 3839 // belong to that package. 3840 void removeItemsByPackageName(final ArrayList<String> packages) { 3841 final HashSet<String> packageNames = new HashSet<String>(); 3842 packageNames.addAll(packages); 3843 3844 // Filter out all the ItemInfos that this is going to affect 3845 final HashSet<ItemInfo> infos = new HashSet<ItemInfo>(); 3846 final HashSet<ComponentName> cns = new HashSet<ComponentName>(); 3847 ArrayList<CellLayout> cellLayouts = getWorkspaceAndHotseatCellLayouts(); 3848 for (CellLayout layoutParent : cellLayouts) { 3849 ViewGroup layout = layoutParent.getShortcutsAndWidgets(); 3850 int childCount = layout.getChildCount(); 3851 for (int i = 0; i < childCount; ++i) { 3852 View view = layout.getChildAt(i); 3853 infos.add((ItemInfo) view.getTag()); 3854 } 3855 } 3856 LauncherModel.ItemInfoFilter filter = new LauncherModel.ItemInfoFilter() { 3857 @Override 3858 public boolean filterItem(ItemInfo parent, ItemInfo info, 3859 ComponentName cn) { 3860 if (packageNames.contains(cn.getPackageName())) { 3861 cns.add(cn); 3862 return true; 3863 } 3864 return false; 3865 } 3866 }; 3867 LauncherModel.filterItemInfos(infos, filter); 3868 3869 // Remove the affected components 3870 removeItemsByComponentName(cns); 3871 } 3872 3873 // Removes items that match the application info specified, when applications are removed 3874 // as a part of an update, this is called to ensure that other widgets and application 3875 // shortcuts are not removed. 3876 void removeItemsByApplicationInfo(final ArrayList<ApplicationInfo> appInfos) { 3877 // Just create a hash table of all the specific components that this will affect 3878 HashSet<ComponentName> cns = new HashSet<ComponentName>(); 3879 for (ApplicationInfo info : appInfos) { 3880 cns.add(info.componentName); 3881 } 3882 3883 // Remove all the things 3884 removeItemsByComponentName(cns); 3885 } 3886 3887 void removeItemsByComponentName(final HashSet<ComponentName> componentNames) { 3888 ArrayList<CellLayout> cellLayouts = getWorkspaceAndHotseatCellLayouts(); 3889 for (final CellLayout layoutParent: cellLayouts) { 3890 final ViewGroup layout = layoutParent.getShortcutsAndWidgets(); 3891 3892 final HashMap<ItemInfo, View> children = new HashMap<ItemInfo, View>(); 3893 for (int j = 0; j < layout.getChildCount(); j++) { 3894 final View view = layout.getChildAt(j); 3895 children.put((ItemInfo) view.getTag(), view); 3896 } 3897 3898 final ArrayList<View> childrenToRemove = new ArrayList<View>(); 3899 final HashMap<FolderInfo, ArrayList<ShortcutInfo>> folderAppsToRemove = 3900 new HashMap<FolderInfo, ArrayList<ShortcutInfo>>(); 3901 LauncherModel.ItemInfoFilter filter = new LauncherModel.ItemInfoFilter() { 3902 @Override 3903 public boolean filterItem(ItemInfo parent, ItemInfo info, 3904 ComponentName cn) { 3905 if (parent instanceof FolderInfo) { 3906 if (componentNames.contains(cn)) { 3907 FolderInfo folder = (FolderInfo) parent; 3908 ArrayList<ShortcutInfo> appsToRemove; 3909 if (folderAppsToRemove.containsKey(folder)) { 3910 appsToRemove = folderAppsToRemove.get(folder); 3911 } else { 3912 appsToRemove = new ArrayList<ShortcutInfo>(); 3913 folderAppsToRemove.put(folder, appsToRemove); 3914 } 3915 appsToRemove.add((ShortcutInfo) info); 3916 return true; 3917 } 3918 } else { 3919 if (componentNames.contains(cn)) { 3920 childrenToRemove.add(children.get(info)); 3921 return true; 3922 } 3923 } 3924 return false; 3925 } 3926 }; 3927 LauncherModel.filterItemInfos(children.keySet(), filter); 3928 3929 // Remove all the apps from their folders 3930 for (FolderInfo folder : folderAppsToRemove.keySet()) { 3931 ArrayList<ShortcutInfo> appsToRemove = folderAppsToRemove.get(folder); 3932 for (ShortcutInfo info : appsToRemove) { 3933 folder.remove(info); 3934 } 3935 } 3936 3937 // Remove all the other children 3938 for (View child : childrenToRemove) { 3939 // Note: We can not remove the view directly from CellLayoutChildren as this 3940 // does not re-mark the spaces as unoccupied. 3941 layoutParent.removeViewInLayout(child); 3942 if (child instanceof DropTarget) { 3943 mDragController.removeDropTarget((DropTarget) child); 3944 } 3945 } 3946 3947 if (childrenToRemove.size() > 0) { 3948 layout.requestLayout(); 3949 layout.invalidate(); 3950 } 3951 } 3952 3953 // Strip all the empty screens 3954 stripEmptyScreens(); 3955 3956 // Clean up new-apps animation list 3957 final Context context = getContext(); 3958 post(new Runnable() { 3959 @Override 3960 public void run() { 3961 String spKey = LauncherAppState.getSharedPreferencesKey(); 3962 SharedPreferences sp = context.getSharedPreferences(spKey, 3963 Context.MODE_PRIVATE); 3964 Set<String> newApps = sp.getStringSet(InstallShortcutReceiver.NEW_APPS_LIST_KEY, 3965 null); 3966 3967 // Remove all queued items that match the same package 3968 if (newApps != null) { 3969 synchronized (newApps) { 3970 Iterator<String> iter = newApps.iterator(); 3971 while (iter.hasNext()) { 3972 try { 3973 Intent intent = Intent.parseUri(iter.next(), 0); 3974 if (componentNames.contains(intent.getComponent())) { 3975 iter.remove(); 3976 } 3977 } catch (URISyntaxException e) {} 3978 } 3979 } 3980 } 3981 } 3982 }); 3983 } 3984 3985 void updateShortcuts(ArrayList<ApplicationInfo> apps) { 3986 ArrayList<ShortcutAndWidgetContainer> childrenLayouts = getAllShortcutAndWidgetContainers(); 3987 for (ShortcutAndWidgetContainer layout: childrenLayouts) { 3988 int childCount = layout.getChildCount(); 3989 for (int j = 0; j < childCount; j++) { 3990 final View view = layout.getChildAt(j); 3991 Object tag = view.getTag(); 3992 3993 if (LauncherModel.isShortcutInfoUpdateable((ItemInfo) tag)) { 3994 ShortcutInfo info = (ShortcutInfo) tag; 3995 3996 final Intent intent = info.intent; 3997 final ComponentName name = intent.getComponent(); 3998 final int appCount = apps.size(); 3999 for (int k = 0; k < appCount; k++) { 4000 ApplicationInfo app = apps.get(k); 4001 if (app.componentName.equals(name)) { 4002 BubbleTextView shortcut = (BubbleTextView) view; 4003 info.updateIcon(mIconCache); 4004 info.title = app.title.toString(); 4005 shortcut.applyFromShortcutInfo(info, mIconCache); 4006 } 4007 } 4008 } 4009 } 4010 } 4011 } 4012 4013 void moveToDefaultScreen(boolean animate) { 4014 if (!isSmall()) { 4015 if (animate) { 4016 snapToPage(mDefaultPage); 4017 } else { 4018 setCurrentPage(mDefaultPage); 4019 } 4020 } 4021 View child = getChildAt(mDefaultPage); 4022 if (child != null) { 4023 child.requestFocus(); 4024 } 4025 } 4026 4027 @Override 4028 public void syncPages() { 4029 } 4030 4031 @Override 4032 public void syncPageItems(int page, boolean immediate) { 4033 } 4034 4035 protected String getCurrentPageDescription() { 4036 int page = (mNextPage != INVALID_PAGE) ? mNextPage : mCurrentPage; 4037 return String.format(getContext().getString(R.string.workspace_scroll_format), 4038 page + 1, getChildCount()); 4039 } 4040 4041 public void getLocationInDragLayer(int[] loc) { 4042 mLauncher.getDragLayer().getLocationInDragLayer(this, loc); 4043 } 4044 4045 void setFadeForOverScroll(float fade) { 4046 mOverscrollFade = fade; 4047 float reducedFade = 0.5f + 0.5f * (1 - fade); 4048 final ViewGroup parent = (ViewGroup) getParent(); 4049 final ImageView qsbDivider = (ImageView) (parent.findViewById(R.id.qsb_divider)); 4050 4051 if (qsbDivider != null) qsbDivider.setAlpha(reducedFade); 4052 } 4053} 4054