Workspace.java revision 6400b84d5594d7b9244e3b118f107033eb8b87a0
1/* 2 * Copyright (C) 2008 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17package com.android.launcher3; 18 19import android.animation.Animator; 20import android.animation.Animator.AnimatorListener; 21import android.animation.AnimatorListenerAdapter; 22import android.animation.AnimatorSet; 23import android.animation.LayoutTransition; 24import android.animation.ObjectAnimator; 25import android.animation.PropertyValuesHolder; 26import android.animation.TimeInterpolator; 27import android.animation.ValueAnimator; 28import android.animation.ValueAnimator.AnimatorUpdateListener; 29import android.app.WallpaperManager; 30import android.appwidget.AppWidgetHostView; 31import android.appwidget.AppWidgetProviderInfo; 32import android.content.ComponentName; 33import android.content.Context; 34import android.content.SharedPreferences; 35import android.content.res.Resources; 36import android.content.res.TypedArray; 37import android.graphics.Bitmap; 38import android.graphics.Canvas; 39import android.graphics.Matrix; 40import android.graphics.Point; 41import android.graphics.PointF; 42import android.graphics.Rect; 43import android.graphics.Region.Op; 44import android.graphics.drawable.Drawable; 45import android.net.Uri; 46import android.os.IBinder; 47import android.os.Parcelable; 48import android.support.v4.view.ViewCompat; 49import android.util.AttributeSet; 50import android.util.Log; 51import android.util.SparseArray; 52import android.view.Choreographer; 53import android.view.Display; 54import android.view.MotionEvent; 55import android.view.View; 56import android.view.ViewGroup; 57import android.view.accessibility.AccessibilityManager; 58import android.view.animation.DecelerateInterpolator; 59import android.view.animation.Interpolator; 60import android.widget.TextView; 61 62import com.android.launcher3.FolderIcon.FolderRingAnimator; 63import com.android.launcher3.Launcher.CustomContentCallbacks; 64import com.android.launcher3.LauncherSettings.Favorites; 65 66import java.util.ArrayList; 67import java.util.HashMap; 68import java.util.HashSet; 69import java.util.Iterator; 70 71/** 72 * The workspace is a wide area with a wallpaper and a finite number of pages. 73 * Each page contains a number of icons, folders or widgets the user can 74 * interact with. A workspace is meant to be used with a fixed width only. 75 */ 76public class Workspace extends SmoothPagedView 77 implements DropTarget, DragSource, DragScroller, View.OnTouchListener, 78 DragController.DragListener, LauncherTransitionable, ViewGroup.OnHierarchyChangeListener, 79 Insettable { 80 private static final String TAG = "Launcher.Workspace"; 81 82 // Y rotation to apply to the workspace screens 83 private static final float WORKSPACE_OVERSCROLL_ROTATION = 24f; 84 85 private static final int CHILDREN_OUTLINE_FADE_OUT_DELAY = 0; 86 private static final int CHILDREN_OUTLINE_FADE_OUT_DURATION = 375; 87 private static final int CHILDREN_OUTLINE_FADE_IN_DURATION = 100; 88 89 protected static final int SNAP_OFF_EMPTY_SCREEN_DURATION = 400; 90 protected static final int FADE_EMPTY_SCREEN_DURATION = 150; 91 92 private static final int BACKGROUND_FADE_OUT_DURATION = 350; 93 private static final int ADJACENT_SCREEN_DROP_DURATION = 300; 94 private static final int FLING_THRESHOLD_VELOCITY = 500; 95 96 private static final float ALPHA_CUTOFF_THRESHOLD = 0.01f; 97 98 // These animators are used to fade the children's outlines 99 private ObjectAnimator mChildrenOutlineFadeInAnimation; 100 private ObjectAnimator mChildrenOutlineFadeOutAnimation; 101 private float mChildrenOutlineAlpha = 0; 102 103 // These properties refer to the background protection gradient used for AllApps and Customize 104 private ValueAnimator mBackgroundFadeInAnimation; 105 private ValueAnimator mBackgroundFadeOutAnimation; 106 private Drawable mBackground; 107 boolean mDrawBackground = true; 108 private float mBackgroundAlpha = 0; 109 110 private static final long CUSTOM_CONTENT_GESTURE_DELAY = 200; 111 private long mTouchDownTime = -1; 112 private long mCustomContentShowTime = -1; 113 114 private LayoutTransition mLayoutTransition; 115 private final WallpaperManager mWallpaperManager; 116 private IBinder mWindowToken; 117 118 private int mOriginalDefaultPage; 119 private int mDefaultPage; 120 121 private ShortcutAndWidgetContainer mDragSourceInternal; 122 private static boolean sAccessibilityEnabled; 123 124 // The screen id used for the empty screen always present to the right. 125 private final static long EXTRA_EMPTY_SCREEN_ID = -201; 126 private final static long CUSTOM_CONTENT_SCREEN_ID = -301; 127 128 private HashMap<Long, CellLayout> mWorkspaceScreens = new HashMap<Long, CellLayout>(); 129 private ArrayList<Long> mScreenOrder = new ArrayList<Long>(); 130 131 private Runnable mRemoveEmptyScreenRunnable; 132 133 /** 134 * CellInfo for the cell that is currently being dragged 135 */ 136 private CellLayout.CellInfo mDragInfo; 137 138 /** 139 * Target drop area calculated during last acceptDrop call. 140 */ 141 private int[] mTargetCell = new int[2]; 142 private int mDragOverX = -1; 143 private int mDragOverY = -1; 144 145 static Rect mLandscapeCellLayoutMetrics = null; 146 static Rect mPortraitCellLayoutMetrics = null; 147 148 CustomContentCallbacks mCustomContentCallbacks; 149 boolean mCustomContentShowing; 150 private float mLastCustomContentScrollProgress = -1f; 151 private String mCustomContentDescription = ""; 152 153 /** 154 * The CellLayout that is currently being dragged over 155 */ 156 private CellLayout mDragTargetLayout = null; 157 /** 158 * The CellLayout that we will show as glowing 159 */ 160 private CellLayout mDragOverlappingLayout = null; 161 162 /** 163 * The CellLayout which will be dropped to 164 */ 165 private CellLayout mDropToLayout = null; 166 167 private Launcher mLauncher; 168 private IconCache mIconCache; 169 private DragController mDragController; 170 171 // These are temporary variables to prevent having to allocate a new object just to 172 // return an (x, y) value from helper functions. Do NOT use them to maintain other state. 173 private int[] mTempCell = new int[2]; 174 private int[] mTempPt = new int[2]; 175 private int[] mTempEstimate = new int[2]; 176 private float[] mDragViewVisualCenter = new float[2]; 177 private float[] mTempCellLayoutCenterCoordinates = new float[2]; 178 private Matrix mTempInverseMatrix = new Matrix(); 179 180 private SpringLoadedDragController mSpringLoadedDragController; 181 private float mSpringLoadedShrinkFactor; 182 private float mOverviewModeShrinkFactor; 183 184 // State variable that indicates whether the pages are small (ie when you're 185 // in all apps or customize mode) 186 187 enum State { NORMAL, SPRING_LOADED, SMALL, OVERVIEW}; 188 private State mState = State.NORMAL; 189 private boolean mIsSwitchingState = false; 190 191 boolean mAnimatingViewIntoPlace = false; 192 boolean mIsDragOccuring = false; 193 boolean mChildrenLayersEnabled = true; 194 195 private boolean mStripScreensOnPageStopMoving = false; 196 197 /** Is the user is dragging an item near the edge of a page? */ 198 private boolean mInScrollArea = false; 199 200 private HolographicOutlineHelper mOutlineHelper; 201 private Bitmap mDragOutline = null; 202 private final Rect mTempRect = new Rect(); 203 private final int[] mTempXY = new int[2]; 204 private int[] mTempVisiblePagesRange = new int[2]; 205 private boolean mOverscrollTransformsSet; 206 private float mLastOverscrollPivotX; 207 public static final int DRAG_BITMAP_PADDING = 2; 208 private boolean mWorkspaceFadeInAdjacentScreens; 209 210 WallpaperOffsetInterpolator mWallpaperOffset; 211 private Runnable mDelayedResizeRunnable; 212 private Runnable mDelayedSnapToPageRunnable; 213 private Point mDisplaySize = new Point(); 214 private int mCameraDistance; 215 216 // Variables relating to the creation of user folders by hovering shortcuts over shortcuts 217 private static final int FOLDER_CREATION_TIMEOUT = 0; 218 private static final int REORDER_TIMEOUT = 250; 219 private final Alarm mFolderCreationAlarm = new Alarm(); 220 private final Alarm mReorderAlarm = new Alarm(); 221 private FolderRingAnimator mDragFolderRingAnimator = null; 222 private FolderIcon mDragOverFolderIcon = null; 223 private boolean mCreateUserFolderOnDrop = false; 224 private boolean mAddToExistingFolderOnDrop = false; 225 private DropTarget.DragEnforcer mDragEnforcer; 226 private float mMaxDistanceForFolderCreation; 227 228 // Variables relating to touch disambiguation (scrolling workspace vs. scrolling a widget) 229 private float mXDown; 230 private float mYDown; 231 final static float START_DAMPING_TOUCH_SLOP_ANGLE = (float) Math.PI / 6; 232 final static float MAX_SWIPE_ANGLE = (float) Math.PI / 3; 233 final static float TOUCH_SLOP_DAMPING_FACTOR = 4; 234 235 // Relating to the animation of items being dropped externally 236 public static final int ANIMATE_INTO_POSITION_AND_DISAPPEAR = 0; 237 public static final int ANIMATE_INTO_POSITION_AND_REMAIN = 1; 238 public static final int ANIMATE_INTO_POSITION_AND_RESIZE = 2; 239 public static final int COMPLETE_TWO_STAGE_WIDGET_DROP_ANIMATION = 3; 240 public static final int CANCEL_TWO_STAGE_WIDGET_DROP_ANIMATION = 4; 241 242 // Related to dragging, folder creation and reordering 243 private static final int DRAG_MODE_NONE = 0; 244 private static final int DRAG_MODE_CREATE_FOLDER = 1; 245 private static final int DRAG_MODE_ADD_TO_FOLDER = 2; 246 private static final int DRAG_MODE_REORDER = 3; 247 private int mDragMode = DRAG_MODE_NONE; 248 private int mLastReorderX = -1; 249 private int mLastReorderY = -1; 250 251 private SparseArray<Parcelable> mSavedStates; 252 private final ArrayList<Integer> mRestoredPages = new ArrayList<Integer>(); 253 254 // These variables are used for storing the initial and final values during workspace animations 255 private int mSavedScrollX; 256 private float mSavedRotationY; 257 private float mSavedTranslationX; 258 259 private float mCurrentScale; 260 private float mNewScale; 261 private float[] mOldBackgroundAlphas; 262 private float[] mOldAlphas; 263 private float[] mNewBackgroundAlphas; 264 private float[] mNewAlphas; 265 private int mLastChildCount = -1; 266 private float mTransitionProgress; 267 268 private Runnable mDeferredAction; 269 private boolean mDeferDropAfterUninstall; 270 private boolean mUninstallSuccessful; 271 272 private final Runnable mBindPages = new Runnable() { 273 @Override 274 public void run() { 275 mLauncher.getModel().bindRemainingSynchronousPages(); 276 } 277 }; 278 279 /** 280 * Used to inflate the Workspace from XML. 281 * 282 * @param context The application's context. 283 * @param attrs The attributes set containing the Workspace's customization values. 284 */ 285 public Workspace(Context context, AttributeSet attrs) { 286 this(context, attrs, 0); 287 } 288 289 /** 290 * Used to inflate the Workspace from XML. 291 * 292 * @param context The application's context. 293 * @param attrs The attributes set containing the Workspace's customization values. 294 * @param defStyle Unused. 295 */ 296 public Workspace(Context context, AttributeSet attrs, int defStyle) { 297 super(context, attrs, defStyle); 298 mContentIsRefreshable = false; 299 300 mOutlineHelper = HolographicOutlineHelper.obtain(context); 301 302 mDragEnforcer = new DropTarget.DragEnforcer(context); 303 // With workspace, data is available straight from the get-go 304 setDataIsReady(); 305 306 mLauncher = (Launcher) context; 307 final Resources res = getResources(); 308 mWorkspaceFadeInAdjacentScreens = LauncherAppState.getInstance().getDynamicGrid(). 309 getDeviceProfile().shouldFadeAdjacentWorkspaceScreens(); 310 mFadeInAdjacentScreens = false; 311 mWallpaperManager = WallpaperManager.getInstance(context); 312 313 LauncherAppState app = LauncherAppState.getInstance(); 314 DeviceProfile grid = app.getDynamicGrid().getDeviceProfile(); 315 TypedArray a = context.obtainStyledAttributes(attrs, 316 R.styleable.Workspace, defStyle, 0); 317 mSpringLoadedShrinkFactor = 318 res.getInteger(R.integer.config_workspaceSpringLoadShrinkPercentage) / 100.0f; 319 mOverviewModeShrinkFactor = grid.getOverviewModeScale(); 320 mCameraDistance = res.getInteger(R.integer.config_cameraDistance); 321 mOriginalDefaultPage = mDefaultPage = a.getInt(R.styleable.Workspace_defaultScreen, 1); 322 a.recycle(); 323 324 setOnHierarchyChangeListener(this); 325 setHapticFeedbackEnabled(false); 326 327 initWorkspace(); 328 329 // Disable multitouch across the workspace/all apps/customize tray 330 setMotionEventSplittingEnabled(true); 331 setImportantForAccessibility(View.IMPORTANT_FOR_ACCESSIBILITY_YES); 332 } 333 334 @Override 335 public void setInsets(Rect insets) { 336 mInsets.set(insets); 337 338 CellLayout customScreen = getScreenWithId(CUSTOM_CONTENT_SCREEN_ID); 339 if (customScreen != null) { 340 View customContent = customScreen.getShortcutsAndWidgets().getChildAt(0); 341 if (customContent instanceof Insettable) { 342 ((Insettable) customContent).setInsets(mInsets); 343 } 344 } 345 } 346 347 // estimate the size of a widget with spans hSpan, vSpan. return MAX_VALUE for each 348 // dimension if unsuccessful 349 public int[] estimateItemSize(int hSpan, int vSpan, 350 ItemInfo itemInfo, boolean springLoaded) { 351 int[] size = new int[2]; 352 if (getChildCount() > 0) { 353 // Use the first non-custom page to estimate the child position 354 CellLayout cl = (CellLayout) getChildAt(numCustomPages()); 355 Rect r = estimateItemPosition(cl, itemInfo, 0, 0, hSpan, vSpan); 356 size[0] = r.width(); 357 size[1] = r.height(); 358 if (springLoaded) { 359 size[0] *= mSpringLoadedShrinkFactor; 360 size[1] *= mSpringLoadedShrinkFactor; 361 } 362 return size; 363 } else { 364 size[0] = Integer.MAX_VALUE; 365 size[1] = Integer.MAX_VALUE; 366 return size; 367 } 368 } 369 370 public Rect estimateItemPosition(CellLayout cl, ItemInfo pendingInfo, 371 int hCell, int vCell, int hSpan, int vSpan) { 372 Rect r = new Rect(); 373 cl.cellToRect(hCell, vCell, hSpan, vSpan, r); 374 return r; 375 } 376 377 public void onDragStart(final DragSource source, Object info, int dragAction) { 378 mIsDragOccuring = true; 379 updateChildrenLayersEnabled(false); 380 mLauncher.lockScreenOrientation(); 381 mLauncher.onInteractionBegin(); 382 setChildrenBackgroundAlphaMultipliers(1f); 383 // Prevent any Un/InstallShortcutReceivers from updating the db while we are dragging 384 InstallShortcutReceiver.enableInstallQueue(); 385 UninstallShortcutReceiver.enableUninstallQueue(); 386 post(new Runnable() { 387 @Override 388 public void run() { 389 if (mIsDragOccuring) { 390 addExtraEmptyScreenOnDrag(); 391 } 392 } 393 }); 394 } 395 396 public void onDragEnd() { 397 mIsDragOccuring = false; 398 updateChildrenLayersEnabled(false); 399 mLauncher.unlockScreenOrientation(false); 400 401 // Re-enable any Un/InstallShortcutReceiver and now process any queued items 402 InstallShortcutReceiver.disableAndFlushInstallQueue(getContext()); 403 UninstallShortcutReceiver.disableAndFlushUninstallQueue(getContext()); 404 405 mDragSourceInternal = null; 406 mLauncher.onInteractionEnd(); 407 } 408 409 /** 410 * Initializes various states for this workspace. 411 */ 412 protected void initWorkspace() { 413 Context context = getContext(); 414 mCurrentPage = mDefaultPage; 415 Launcher.setScreen(mCurrentPage); 416 LauncherAppState app = LauncherAppState.getInstance(); 417 DeviceProfile grid = app.getDynamicGrid().getDeviceProfile(); 418 mIconCache = app.getIconCache(); 419 setWillNotDraw(false); 420 setClipChildren(false); 421 setClipToPadding(false); 422 setChildrenDrawnWithCacheEnabled(true); 423 424 setMinScale(mOverviewModeShrinkFactor); 425 setupLayoutTransition(); 426 427 final Resources res = getResources(); 428 try { 429 mBackground = res.getDrawable(R.drawable.apps_customize_bg); 430 } catch (Resources.NotFoundException e) { 431 // In this case, we will skip drawing background protection 432 } 433 434 mWallpaperOffset = new WallpaperOffsetInterpolator(); 435 Display display = mLauncher.getWindowManager().getDefaultDisplay(); 436 display.getSize(mDisplaySize); 437 438 mMaxDistanceForFolderCreation = (0.55f * grid.iconSizePx); 439 mFlingThresholdVelocity = (int) (FLING_THRESHOLD_VELOCITY * mDensity); 440 } 441 442 private void setupLayoutTransition() { 443 // We want to show layout transitions when pages are deleted, to close the gap. 444 mLayoutTransition = new LayoutTransition(); 445 mLayoutTransition.enableTransitionType(LayoutTransition.DISAPPEARING); 446 mLayoutTransition.enableTransitionType(LayoutTransition.CHANGE_DISAPPEARING); 447 mLayoutTransition.disableTransitionType(LayoutTransition.APPEARING); 448 mLayoutTransition.disableTransitionType(LayoutTransition.CHANGE_APPEARING); 449 setLayoutTransition(mLayoutTransition); 450 } 451 452 void enableLayoutTransitions() { 453 setLayoutTransition(mLayoutTransition); 454 } 455 void disableLayoutTransitions() { 456 setLayoutTransition(null); 457 } 458 459 @Override 460 protected int getScrollMode() { 461 return SmoothPagedView.X_LARGE_MODE; 462 } 463 464 @Override 465 public void onChildViewAdded(View parent, View child) { 466 if (!(child instanceof CellLayout)) { 467 throw new IllegalArgumentException("A Workspace can only have CellLayout children."); 468 } 469 CellLayout cl = ((CellLayout) child); 470 cl.setOnInterceptTouchListener(this); 471 cl.setClickable(true); 472 cl.setImportantForAccessibility(ViewCompat.IMPORTANT_FOR_ACCESSIBILITY_NO); 473 super.onChildViewAdded(parent, child); 474 } 475 476 protected boolean shouldDrawChild(View child) { 477 final CellLayout cl = (CellLayout) child; 478 return super.shouldDrawChild(child) && 479 (mIsSwitchingState || 480 cl.getShortcutsAndWidgets().getAlpha() > 0 || 481 cl.getBackgroundAlpha() > 0); 482 } 483 484 /** 485 * @return The open folder on the current screen, or null if there is none 486 */ 487 Folder getOpenFolder() { 488 DragLayer dragLayer = mLauncher.getDragLayer(); 489 int count = dragLayer.getChildCount(); 490 for (int i = 0; i < count; i++) { 491 View child = dragLayer.getChildAt(i); 492 if (child instanceof Folder) { 493 Folder folder = (Folder) child; 494 if (folder.getInfo().opened) 495 return folder; 496 } 497 } 498 return null; 499 } 500 501 boolean isTouchActive() { 502 return mTouchState != TOUCH_STATE_REST; 503 } 504 505 public void removeAllWorkspaceScreens() { 506 // Disable all layout transitions before removing all pages to ensure that we don't get the 507 // transition animations competing with us changing the scroll when we add pages or the 508 // custom content screen 509 disableLayoutTransitions(); 510 511 // Since we increment the current page when we call addCustomContentPage via bindScreens 512 // (and other places), we need to adjust the current page back when we clear the pages 513 if (hasCustomContent()) { 514 removeCustomContentPage(); 515 } 516 517 // Remove the pages and clear the screen models 518 removeAllViews(); 519 mScreenOrder.clear(); 520 mWorkspaceScreens.clear(); 521 522 // Re-enable the layout transitions 523 enableLayoutTransitions(); 524 } 525 526 public long insertNewWorkspaceScreenBeforeEmptyScreen(long screenId) { 527 // Find the index to insert this view into. If the empty screen exists, then 528 // insert it before that. 529 int insertIndex = mScreenOrder.indexOf(EXTRA_EMPTY_SCREEN_ID); 530 if (insertIndex < 0) { 531 insertIndex = mScreenOrder.size(); 532 } 533 return insertNewWorkspaceScreen(screenId, insertIndex); 534 } 535 536 public long insertNewWorkspaceScreen(long screenId) { 537 return insertNewWorkspaceScreen(screenId, getChildCount()); 538 } 539 540 public long insertNewWorkspaceScreen(long screenId, int insertIndex) { 541 // Log to disk 542 Launcher.addDumpLog(TAG, "11683562 - insertNewWorkspaceScreen(): " + screenId + 543 " at index: " + insertIndex, true); 544 545 if (mWorkspaceScreens.containsKey(screenId)) { 546 throw new RuntimeException("Screen id " + screenId + " already exists!"); 547 } 548 549 CellLayout newScreen = (CellLayout) 550 mLauncher.getLayoutInflater().inflate(R.layout.workspace_screen, null); 551 552 newScreen.setOnLongClickListener(mLongClickListener); 553 newScreen.setOnClickListener(mLauncher); 554 newScreen.setSoundEffectsEnabled(false); 555 mWorkspaceScreens.put(screenId, newScreen); 556 mScreenOrder.add(insertIndex, screenId); 557 addView(newScreen, insertIndex); 558 return screenId; 559 } 560 561 public void createCustomContentPage() { 562 CellLayout customScreen = (CellLayout) 563 mLauncher.getLayoutInflater().inflate(R.layout.workspace_screen, null); 564 565 mWorkspaceScreens.put(CUSTOM_CONTENT_SCREEN_ID, customScreen); 566 mScreenOrder.add(0, CUSTOM_CONTENT_SCREEN_ID); 567 568 // We want no padding on the custom content 569 customScreen.setPadding(0, 0, 0, 0); 570 571 addFullScreenPage(customScreen); 572 573 // Ensure that the current page and default page are maintained. 574 mDefaultPage = mOriginalDefaultPage + 1; 575 576 // Update the custom content hint 577 mLauncher.updateCustomContentHintVisibility(); 578 if (mRestorePage != INVALID_RESTORE_PAGE) { 579 mRestorePage = mRestorePage + 1; 580 } else { 581 setCurrentPage(getCurrentPage() + 1); 582 } 583 } 584 585 public void removeCustomContentPage() { 586 CellLayout customScreen = getScreenWithId(CUSTOM_CONTENT_SCREEN_ID); 587 if (customScreen == null) { 588 throw new RuntimeException("Expected custom content screen to exist"); 589 } 590 591 mWorkspaceScreens.remove(CUSTOM_CONTENT_SCREEN_ID); 592 mScreenOrder.remove(CUSTOM_CONTENT_SCREEN_ID); 593 removeView(customScreen); 594 595 if (mCustomContentCallbacks != null) { 596 mCustomContentCallbacks.onScrollProgressChanged(0); 597 mCustomContentCallbacks.onHide(); 598 } 599 600 mCustomContentCallbacks = null; 601 602 // Ensure that the current page and default page are maintained. 603 mDefaultPage = mOriginalDefaultPage - 1; 604 605 // Update the custom content hint 606 mLauncher.updateCustomContentHintVisibility(); 607 if (mRestorePage != INVALID_RESTORE_PAGE) { 608 mRestorePage = mRestorePage - 1; 609 } else { 610 setCurrentPage(getCurrentPage() - 1); 611 } 612 } 613 614 public void addToCustomContentPage(View customContent, CustomContentCallbacks callbacks, 615 String description) { 616 if (getPageIndexForScreenId(CUSTOM_CONTENT_SCREEN_ID) < 0) { 617 throw new RuntimeException("Expected custom content screen to exist"); 618 } 619 620 // Add the custom content to the full screen custom page 621 CellLayout customScreen = getScreenWithId(CUSTOM_CONTENT_SCREEN_ID); 622 int spanX = customScreen.getCountX(); 623 int spanY = customScreen.getCountY(); 624 CellLayout.LayoutParams lp = new CellLayout.LayoutParams(0, 0, spanX, spanY); 625 lp.canReorder = false; 626 lp.isFullscreen = true; 627 if (customContent instanceof Insettable) { 628 ((Insettable)customContent).setInsets(mInsets); 629 } 630 631 // Verify that the child is removed from any existing parent. 632 if (customContent.getParent() instanceof ViewGroup) { 633 ViewGroup parent = (ViewGroup) customContent.getParent(); 634 parent.removeView(customContent); 635 } 636 customScreen.removeAllViews(); 637 customScreen.addViewToCellLayout(customContent, 0, 0, lp, true); 638 mCustomContentDescription = description; 639 640 mCustomContentCallbacks = callbacks; 641 } 642 643 public void addExtraEmptyScreenOnDrag() { 644 // Log to disk 645 Launcher.addDumpLog(TAG, "11683562 - addExtraEmptyScreenOnDrag()", true); 646 647 boolean lastChildOnScreen = false; 648 boolean childOnFinalScreen = false; 649 650 // Cancel any pending removal of empty screen 651 mRemoveEmptyScreenRunnable = null; 652 653 if (mDragSourceInternal != null) { 654 if (mDragSourceInternal.getChildCount() == 1) { 655 lastChildOnScreen = true; 656 } 657 CellLayout cl = (CellLayout) mDragSourceInternal.getParent(); 658 if (indexOfChild(cl) == getChildCount() - 1) { 659 childOnFinalScreen = true; 660 } 661 } 662 663 // If this is the last item on the final screen 664 if (lastChildOnScreen && childOnFinalScreen) { 665 return; 666 } 667 if (!mWorkspaceScreens.containsKey(EXTRA_EMPTY_SCREEN_ID)) { 668 insertNewWorkspaceScreen(EXTRA_EMPTY_SCREEN_ID); 669 } 670 } 671 672 public boolean addExtraEmptyScreen() { 673 // Log to disk 674 Launcher.addDumpLog(TAG, "11683562 - addExtraEmptyScreen()", true); 675 676 if (!mWorkspaceScreens.containsKey(EXTRA_EMPTY_SCREEN_ID)) { 677 insertNewWorkspaceScreen(EXTRA_EMPTY_SCREEN_ID); 678 return true; 679 } 680 return false; 681 } 682 683 private void convertFinalScreenToEmptyScreenIfNecessary() { 684 // Log to disk 685 Launcher.addDumpLog(TAG, "11683562 - convertFinalScreenToEmptyScreenIfNecessary()", true); 686 687 if (hasExtraEmptyScreen() || mScreenOrder.size() == 0) return; 688 long finalScreenId = mScreenOrder.get(mScreenOrder.size() - 1); 689 690 if (finalScreenId == CUSTOM_CONTENT_SCREEN_ID) return; 691 CellLayout finalScreen = mWorkspaceScreens.get(finalScreenId); 692 693 // If the final screen is empty, convert it to the extra empty screen 694 if (finalScreen.getShortcutsAndWidgets().getChildCount() == 0 && 695 !finalScreen.isDropPending()) { 696 mWorkspaceScreens.remove(finalScreenId); 697 mScreenOrder.remove(finalScreenId); 698 699 // if this is the last non-custom content screen, convert it to the empty screen 700 mWorkspaceScreens.put(EXTRA_EMPTY_SCREEN_ID, finalScreen); 701 mScreenOrder.add(EXTRA_EMPTY_SCREEN_ID); 702 703 // Update the model if we have changed any screens 704 mLauncher.getModel().updateWorkspaceScreenOrder(mLauncher, mScreenOrder); 705 Launcher.addDumpLog(TAG, "11683562 - extra empty screen: " + finalScreenId, true); 706 } 707 } 708 709 public void removeExtraEmptyScreen(final boolean animate, final Runnable onComplete) { 710 removeExtraEmptyScreen(animate, onComplete, 0, false); 711 } 712 713 public void removeExtraEmptyScreen(final boolean animate, final Runnable onComplete, 714 final int delay, final boolean stripEmptyScreens) { 715 // Log to disk 716 Launcher.addDumpLog(TAG, "11683562 - removeExtraEmptyScreen()", true); 717 if (delay > 0) { 718 postDelayed(new Runnable() { 719 @Override 720 public void run() { 721 removeExtraEmptyScreen(animate, onComplete, 0, stripEmptyScreens); 722 } 723 724 }, delay); 725 return; 726 } 727 728 convertFinalScreenToEmptyScreenIfNecessary(); 729 if (hasExtraEmptyScreen()) { 730 int emptyIndex = mScreenOrder.indexOf(EXTRA_EMPTY_SCREEN_ID); 731 if (getNextPage() == emptyIndex) { 732 snapToPage(getNextPage() - 1, SNAP_OFF_EMPTY_SCREEN_DURATION); 733 fadeAndRemoveEmptyScreen(SNAP_OFF_EMPTY_SCREEN_DURATION, FADE_EMPTY_SCREEN_DURATION, 734 onComplete, stripEmptyScreens); 735 } else { 736 fadeAndRemoveEmptyScreen(0, FADE_EMPTY_SCREEN_DURATION, 737 onComplete, stripEmptyScreens); 738 } 739 return; 740 } else if (stripEmptyScreens) { 741 // If we're not going to strip the empty screens after removing 742 // the extra empty screen, do it right away. 743 stripEmptyScreens(); 744 } 745 746 if (onComplete != null) { 747 onComplete.run(); 748 } 749 } 750 751 private void fadeAndRemoveEmptyScreen(int delay, int duration, final Runnable onComplete, 752 final boolean stripEmptyScreens) { 753 // Log to disk 754 // XXX: Do we need to update LM workspace screens below? 755 Launcher.addDumpLog(TAG, "11683562 - fadeAndRemoveEmptyScreen()", true); 756 PropertyValuesHolder alpha = PropertyValuesHolder.ofFloat("alpha", 0f); 757 PropertyValuesHolder bgAlpha = PropertyValuesHolder.ofFloat("backgroundAlpha", 0f); 758 759 final CellLayout cl = mWorkspaceScreens.get(EXTRA_EMPTY_SCREEN_ID); 760 761 mRemoveEmptyScreenRunnable = new Runnable() { 762 @Override 763 public void run() { 764 if (hasExtraEmptyScreen()) { 765 mWorkspaceScreens.remove(EXTRA_EMPTY_SCREEN_ID); 766 mScreenOrder.remove(EXTRA_EMPTY_SCREEN_ID); 767 removeView(cl); 768 if (stripEmptyScreens) { 769 stripEmptyScreens(); 770 } 771 } 772 } 773 }; 774 775 ObjectAnimator oa = ObjectAnimator.ofPropertyValuesHolder(cl, alpha, bgAlpha); 776 oa.setDuration(duration); 777 oa.setStartDelay(delay); 778 oa.addListener(new AnimatorListenerAdapter() { 779 @Override 780 public void onAnimationEnd(Animator animation) { 781 if (mRemoveEmptyScreenRunnable != null) { 782 mRemoveEmptyScreenRunnable.run(); 783 } 784 if (onComplete != null) { 785 onComplete.run(); 786 } 787 } 788 }); 789 oa.start(); 790 } 791 792 public boolean hasExtraEmptyScreen() { 793 int nScreens = getChildCount(); 794 nScreens = nScreens - numCustomPages(); 795 return mWorkspaceScreens.containsKey(EXTRA_EMPTY_SCREEN_ID) && nScreens > 1; 796 } 797 798 public long commitExtraEmptyScreen() { 799 // Log to disk 800 Launcher.addDumpLog(TAG, "11683562 - commitExtraEmptyScreen()", true); 801 802 int index = getPageIndexForScreenId(EXTRA_EMPTY_SCREEN_ID); 803 CellLayout cl = mWorkspaceScreens.get(EXTRA_EMPTY_SCREEN_ID); 804 mWorkspaceScreens.remove(EXTRA_EMPTY_SCREEN_ID); 805 mScreenOrder.remove(EXTRA_EMPTY_SCREEN_ID); 806 807 long newId = LauncherAppState.getLauncherProvider().generateNewScreenId(); 808 mWorkspaceScreens.put(newId, cl); 809 mScreenOrder.add(newId); 810 811 // Update the page indicator marker 812 if (getPageIndicator() != null) { 813 getPageIndicator().updateMarker(index, getPageIndicatorMarker(index)); 814 } 815 816 // Update the model for the new screen 817 mLauncher.getModel().updateWorkspaceScreenOrder(mLauncher, mScreenOrder); 818 819 return newId; 820 } 821 822 public CellLayout getScreenWithId(long screenId) { 823 CellLayout layout = mWorkspaceScreens.get(screenId); 824 return layout; 825 } 826 827 public long getIdForScreen(CellLayout layout) { 828 Iterator<Long> iter = mWorkspaceScreens.keySet().iterator(); 829 while (iter.hasNext()) { 830 long id = iter.next(); 831 if (mWorkspaceScreens.get(id) == layout) { 832 return id; 833 } 834 } 835 return -1; 836 } 837 838 public int getPageIndexForScreenId(long screenId) { 839 return indexOfChild(mWorkspaceScreens.get(screenId)); 840 } 841 842 public long getScreenIdForPageIndex(int index) { 843 if (0 <= index && index < mScreenOrder.size()) { 844 return mScreenOrder.get(index); 845 } 846 return -1; 847 } 848 849 ArrayList<Long> getScreenOrder() { 850 return mScreenOrder; 851 } 852 853 public void stripEmptyScreens() { 854 // Log to disk 855 Launcher.addDumpLog(TAG, "11683562 - stripEmptyScreens()", true); 856 857 if (isPageMoving()) { 858 mStripScreensOnPageStopMoving = true; 859 return; 860 } 861 862 int currentPage = getNextPage(); 863 ArrayList<Long> removeScreens = new ArrayList<Long>(); 864 for (Long id: mWorkspaceScreens.keySet()) { 865 CellLayout cl = mWorkspaceScreens.get(id); 866 if (id >= 0 && cl.getShortcutsAndWidgets().getChildCount() == 0) { 867 removeScreens.add(id); 868 } 869 } 870 871 // We enforce at least one page to add new items to. In the case that we remove the last 872 // such screen, we convert the last screen to the empty screen 873 int minScreens = 1 + numCustomPages(); 874 875 int pageShift = 0; 876 for (Long id: removeScreens) { 877 Launcher.addDumpLog(TAG, "11683562 - removing id: " + id, true); 878 CellLayout cl = mWorkspaceScreens.get(id); 879 mWorkspaceScreens.remove(id); 880 mScreenOrder.remove(id); 881 882 if (getChildCount() > minScreens) { 883 if (indexOfChild(cl) < currentPage) { 884 pageShift++; 885 } 886 removeView(cl); 887 } else { 888 // if this is the last non-custom content screen, convert it to the empty screen 889 mRemoveEmptyScreenRunnable = null; 890 mWorkspaceScreens.put(EXTRA_EMPTY_SCREEN_ID, cl); 891 mScreenOrder.add(EXTRA_EMPTY_SCREEN_ID); 892 } 893 } 894 895 if (!removeScreens.isEmpty()) { 896 // Update the model if we have changed any screens 897 mLauncher.getModel().updateWorkspaceScreenOrder(mLauncher, mScreenOrder); 898 } 899 900 if (pageShift >= 0) { 901 setCurrentPage(currentPage - pageShift); 902 } 903 } 904 905 // See implementation for parameter definition. 906 void addInScreen(View child, long container, long screenId, 907 int x, int y, int spanX, int spanY) { 908 addInScreen(child, container, screenId, x, y, spanX, spanY, false, false); 909 } 910 911 // At bind time, we use the rank (screenId) to compute x and y for hotseat items. 912 // See implementation for parameter definition. 913 void addInScreenFromBind(View child, long container, long screenId, int x, int y, 914 int spanX, int spanY) { 915 addInScreen(child, container, screenId, x, y, spanX, spanY, false, true); 916 } 917 918 // See implementation for parameter definition. 919 void addInScreen(View child, long container, long screenId, int x, int y, int spanX, int spanY, 920 boolean insert) { 921 addInScreen(child, container, screenId, x, y, spanX, spanY, insert, false); 922 } 923 924 /** 925 * Adds the specified child in the specified screen. The position and dimension of 926 * the child are defined by x, y, spanX and spanY. 927 * 928 * @param child The child to add in one of the workspace's screens. 929 * @param screenId The screen in which to add the child. 930 * @param x The X position of the child in the screen's grid. 931 * @param y The Y position of the child in the screen's grid. 932 * @param spanX The number of cells spanned horizontally by the child. 933 * @param spanY The number of cells spanned vertically by the child. 934 * @param insert When true, the child is inserted at the beginning of the children list. 935 * @param computeXYFromRank When true, we use the rank (stored in screenId) to compute 936 * the x and y position in which to place hotseat items. Otherwise 937 * we use the x and y position to compute the rank. 938 */ 939 void addInScreen(View child, long container, long screenId, int x, int y, int spanX, int spanY, 940 boolean insert, boolean computeXYFromRank) { 941 if (container == LauncherSettings.Favorites.CONTAINER_DESKTOP) { 942 if (getScreenWithId(screenId) == null) { 943 Log.e(TAG, "Skipping child, screenId " + screenId + " not found"); 944 // DEBUGGING - Print out the stack trace to see where we are adding from 945 new Throwable().printStackTrace(); 946 return; 947 } 948 } 949 if (screenId == EXTRA_EMPTY_SCREEN_ID) { 950 // This should never happen 951 throw new RuntimeException("Screen id should not be EXTRA_EMPTY_SCREEN_ID"); 952 } 953 954 final CellLayout layout; 955 if (container == LauncherSettings.Favorites.CONTAINER_HOTSEAT) { 956 layout = mLauncher.getHotseat().getLayout(); 957 child.setOnKeyListener(null); 958 959 // Hide folder title in the hotseat 960 if (child instanceof FolderIcon) { 961 ((FolderIcon) child).setTextVisible(false); 962 } 963 964 if (computeXYFromRank) { 965 x = mLauncher.getHotseat().getCellXFromOrder((int) screenId); 966 y = mLauncher.getHotseat().getCellYFromOrder((int) screenId); 967 } else { 968 screenId = mLauncher.getHotseat().getOrderInHotseat(x, y); 969 } 970 } else { 971 // Show folder title if not in the hotseat 972 if (child instanceof FolderIcon) { 973 ((FolderIcon) child).setTextVisible(true); 974 } 975 layout = getScreenWithId(screenId); 976 child.setOnKeyListener(new IconKeyEventListener()); 977 } 978 979 ViewGroup.LayoutParams genericLp = child.getLayoutParams(); 980 CellLayout.LayoutParams lp; 981 if (genericLp == null || !(genericLp instanceof CellLayout.LayoutParams)) { 982 lp = new CellLayout.LayoutParams(x, y, spanX, spanY); 983 } else { 984 lp = (CellLayout.LayoutParams) genericLp; 985 lp.cellX = x; 986 lp.cellY = y; 987 lp.cellHSpan = spanX; 988 lp.cellVSpan = spanY; 989 } 990 991 if (spanX < 0 && spanY < 0) { 992 lp.isLockedToGrid = false; 993 } 994 995 // Get the canonical child id to uniquely represent this view in this screen 996 ItemInfo info = (ItemInfo) child.getTag(); 997 int childId = mLauncher.getViewIdForItem(info); 998 999 boolean markCellsAsOccupied = !(child instanceof Folder); 1000 if (!layout.addViewToCellLayout(child, insert ? 0 : -1, childId, lp, markCellsAsOccupied)) { 1001 // TODO: This branch occurs when the workspace is adding views 1002 // outside of the defined grid 1003 // maybe we should be deleting these items from the LauncherModel? 1004 Launcher.addDumpLog(TAG, "Failed to add to item at (" + lp.cellX + "," + lp.cellY + ") to CellLayout", true); 1005 } 1006 1007 if (!(child instanceof Folder)) { 1008 child.setHapticFeedbackEnabled(false); 1009 child.setOnLongClickListener(mLongClickListener); 1010 } 1011 if (child instanceof DropTarget) { 1012 mDragController.addDropTarget((DropTarget) child); 1013 } 1014 } 1015 1016 /** 1017 * Called directly from a CellLayout (not by the framework), after we've been added as a 1018 * listener via setOnInterceptTouchEventListener(). This allows us to tell the CellLayout 1019 * that it should intercept touch events, which is not something that is normally supported. 1020 */ 1021 @Override 1022 public boolean onTouch(View v, MotionEvent event) { 1023 return (isSmall() || !isFinishedSwitchingState()) 1024 || (!isSmall() && indexOfChild(v) != mCurrentPage); 1025 } 1026 1027 public boolean isSwitchingState() { 1028 return mIsSwitchingState; 1029 } 1030 1031 /** This differs from isSwitchingState in that we take into account how far the transition 1032 * has completed. */ 1033 public boolean isFinishedSwitchingState() { 1034 return !mIsSwitchingState || (mTransitionProgress > 0.5f); 1035 } 1036 1037 protected void onWindowVisibilityChanged (int visibility) { 1038 mLauncher.onWindowVisibilityChanged(visibility); 1039 } 1040 1041 @Override 1042 public boolean dispatchUnhandledMove(View focused, int direction) { 1043 if (isSmall() || !isFinishedSwitchingState()) { 1044 // when the home screens are shrunken, shouldn't allow side-scrolling 1045 return false; 1046 } 1047 return super.dispatchUnhandledMove(focused, direction); 1048 } 1049 1050 @Override 1051 public boolean onInterceptTouchEvent(MotionEvent ev) { 1052 switch (ev.getAction() & MotionEvent.ACTION_MASK) { 1053 case MotionEvent.ACTION_DOWN: 1054 mXDown = ev.getX(); 1055 mYDown = ev.getY(); 1056 mTouchDownTime = System.currentTimeMillis(); 1057 break; 1058 case MotionEvent.ACTION_POINTER_UP: 1059 case MotionEvent.ACTION_UP: 1060 if (mTouchState == TOUCH_STATE_REST) { 1061 final CellLayout currentPage = (CellLayout) getChildAt(mCurrentPage); 1062 if (!currentPage.lastDownOnOccupiedCell()) { 1063 onWallpaperTap(ev); 1064 } 1065 } 1066 } 1067 return super.onInterceptTouchEvent(ev); 1068 } 1069 1070 protected void reinflateWidgetsIfNecessary() { 1071 final int clCount = getChildCount(); 1072 for (int i = 0; i < clCount; i++) { 1073 CellLayout cl = (CellLayout) getChildAt(i); 1074 ShortcutAndWidgetContainer swc = cl.getShortcutsAndWidgets(); 1075 final int itemCount = swc.getChildCount(); 1076 for (int j = 0; j < itemCount; j++) { 1077 View v = swc.getChildAt(j); 1078 1079 if (v.getTag() instanceof LauncherAppWidgetInfo) { 1080 LauncherAppWidgetInfo info = (LauncherAppWidgetInfo) v.getTag(); 1081 LauncherAppWidgetHostView lahv = (LauncherAppWidgetHostView) info.hostView; 1082 if (lahv != null && lahv.orientationChangedSincedInflation()) { 1083 mLauncher.removeAppWidget(info); 1084 // Remove the current widget which is inflated with the wrong orientation 1085 cl.removeView(lahv); 1086 mLauncher.bindAppWidget(info); 1087 } 1088 } 1089 } 1090 } 1091 } 1092 1093 @Override 1094 protected void determineScrollingStart(MotionEvent ev) { 1095 if (!isFinishedSwitchingState()) return; 1096 1097 float deltaX = ev.getX() - mXDown; 1098 float absDeltaX = Math.abs(deltaX); 1099 float absDeltaY = Math.abs(ev.getY() - mYDown); 1100 1101 if (Float.compare(absDeltaX, 0f) == 0) return; 1102 1103 float slope = absDeltaY / absDeltaX; 1104 float theta = (float) Math.atan(slope); 1105 1106 if (absDeltaX > mTouchSlop || absDeltaY > mTouchSlop) { 1107 cancelCurrentPageLongPress(); 1108 } 1109 1110 boolean passRightSwipesToCustomContent = 1111 (mTouchDownTime - mCustomContentShowTime) > CUSTOM_CONTENT_GESTURE_DELAY; 1112 1113 boolean swipeInIgnoreDirection = isLayoutRtl() ? deltaX < 0 : deltaX > 0; 1114 if (swipeInIgnoreDirection && getScreenIdForPageIndex(getCurrentPage()) == 1115 CUSTOM_CONTENT_SCREEN_ID && passRightSwipesToCustomContent) { 1116 // Pass swipes to the right to the custom content page. 1117 return; 1118 } 1119 1120 if (theta > MAX_SWIPE_ANGLE) { 1121 // Above MAX_SWIPE_ANGLE, we don't want to ever start scrolling the workspace 1122 return; 1123 } else if (theta > START_DAMPING_TOUCH_SLOP_ANGLE) { 1124 // Above START_DAMPING_TOUCH_SLOP_ANGLE and below MAX_SWIPE_ANGLE, we want to 1125 // increase the touch slop to make it harder to begin scrolling the workspace. This 1126 // results in vertically scrolling widgets to more easily. The higher the angle, the 1127 // more we increase touch slop. 1128 theta -= START_DAMPING_TOUCH_SLOP_ANGLE; 1129 float extraRatio = (float) 1130 Math.sqrt((theta / (MAX_SWIPE_ANGLE - START_DAMPING_TOUCH_SLOP_ANGLE))); 1131 super.determineScrollingStart(ev, 1 + TOUCH_SLOP_DAMPING_FACTOR * extraRatio); 1132 } else { 1133 // Below START_DAMPING_TOUCH_SLOP_ANGLE, we don't do anything special 1134 super.determineScrollingStart(ev); 1135 } 1136 } 1137 1138 protected void onPageBeginMoving() { 1139 super.onPageBeginMoving(); 1140 1141 if (isHardwareAccelerated()) { 1142 updateChildrenLayersEnabled(false); 1143 } else { 1144 if (mNextPage != INVALID_PAGE) { 1145 // we're snapping to a particular screen 1146 enableChildrenCache(mCurrentPage, mNextPage); 1147 } else { 1148 // this is when user is actively dragging a particular screen, they might 1149 // swipe it either left or right (but we won't advance by more than one screen) 1150 enableChildrenCache(mCurrentPage - 1, mCurrentPage + 1); 1151 } 1152 } 1153 1154 // Only show page outlines as we pan if we are on large screen 1155 if (LauncherAppState.getInstance().isScreenLarge()) { 1156 showOutlines(); 1157 } 1158 1159 // If we are not fading in adjacent screens, we still need to restore the alpha in case the 1160 // user scrolls while we are transitioning (should not affect dispatchDraw optimizations) 1161 if (!mWorkspaceFadeInAdjacentScreens) { 1162 for (int i = 0; i < getChildCount(); ++i) { 1163 ((CellLayout) getPageAt(i)).setShortcutAndWidgetAlpha(1f); 1164 } 1165 } 1166 } 1167 1168 protected void onPageEndMoving() { 1169 super.onPageEndMoving(); 1170 1171 if (isHardwareAccelerated()) { 1172 updateChildrenLayersEnabled(false); 1173 } else { 1174 clearChildrenCache(); 1175 } 1176 1177 if (mDragController.isDragging()) { 1178 if (isSmall()) { 1179 // If we are in springloaded mode, then force an event to check if the current touch 1180 // is under a new page (to scroll to) 1181 mDragController.forceTouchMove(); 1182 } 1183 } else { 1184 // If we are not mid-dragging, hide the page outlines if we are on a large screen 1185 if (LauncherAppState.getInstance().isScreenLarge()) { 1186 hideOutlines(); 1187 } 1188 } 1189 1190 if (mDelayedResizeRunnable != null) { 1191 mDelayedResizeRunnable.run(); 1192 mDelayedResizeRunnable = null; 1193 } 1194 1195 if (mDelayedSnapToPageRunnable != null) { 1196 mDelayedSnapToPageRunnable.run(); 1197 mDelayedSnapToPageRunnable = null; 1198 } 1199 if (mStripScreensOnPageStopMoving) { 1200 stripEmptyScreens(); 1201 mStripScreensOnPageStopMoving = false; 1202 } 1203 } 1204 1205 @Override 1206 protected void notifyPageSwitchListener() { 1207 super.notifyPageSwitchListener(); 1208 Launcher.setScreen(mCurrentPage); 1209 1210 if (hasCustomContent() && getNextPage() == 0 && !mCustomContentShowing) { 1211 mCustomContentShowing = true; 1212 if (mCustomContentCallbacks != null) { 1213 mCustomContentCallbacks.onShow(); 1214 mCustomContentShowTime = System.currentTimeMillis(); 1215 mLauncher.updateVoiceButtonProxyVisible(false); 1216 } 1217 } else if (hasCustomContent() && getNextPage() != 0 && mCustomContentShowing) { 1218 mCustomContentShowing = false; 1219 if (mCustomContentCallbacks != null) { 1220 mCustomContentCallbacks.onHide(); 1221 mLauncher.resetQSBScroll(); 1222 mLauncher.updateVoiceButtonProxyVisible(false); 1223 } 1224 } 1225 if (getPageIndicator() != null) { 1226 getPageIndicator().setContentDescription(getPageIndicatorDescription()); 1227 } 1228 } 1229 1230 protected CustomContentCallbacks getCustomContentCallbacks() { 1231 return mCustomContentCallbacks; 1232 } 1233 1234 protected void setWallpaperDimension() { 1235 String spKey = WallpaperCropActivity.getSharedPreferencesKey(); 1236 SharedPreferences sp = mLauncher.getSharedPreferences(spKey, Context.MODE_MULTI_PROCESS); 1237 WallpaperPickerActivity.suggestWallpaperDimension(mLauncher.getResources(), 1238 sp, mLauncher.getWindowManager(), mWallpaperManager); 1239 } 1240 1241 protected void snapToPage(int whichPage, Runnable r) { 1242 snapToPage(whichPage, SLOW_PAGE_SNAP_ANIMATION_DURATION, r); 1243 } 1244 1245 protected void snapToPage(int whichPage, int duration, Runnable r) { 1246 if (mDelayedSnapToPageRunnable != null) { 1247 mDelayedSnapToPageRunnable.run(); 1248 } 1249 mDelayedSnapToPageRunnable = r; 1250 snapToPage(whichPage, duration); 1251 } 1252 1253 protected void snapToScreenId(long screenId, Runnable r) { 1254 snapToPage(getPageIndexForScreenId(screenId), r); 1255 } 1256 1257 class WallpaperOffsetInterpolator implements Choreographer.FrameCallback { 1258 float mFinalOffset = 0.0f; 1259 float mCurrentOffset = 0.5f; // to force an initial update 1260 boolean mWaitingForUpdate; 1261 Choreographer mChoreographer; 1262 Interpolator mInterpolator; 1263 boolean mAnimating; 1264 long mAnimationStartTime; 1265 float mAnimationStartOffset; 1266 private final int ANIMATION_DURATION = 250; 1267 // Don't use all the wallpaper for parallax until you have at least this many pages 1268 private final int MIN_PARALLAX_PAGE_SPAN = 3; 1269 int mNumScreens; 1270 1271 public WallpaperOffsetInterpolator() { 1272 mChoreographer = Choreographer.getInstance(); 1273 mInterpolator = new DecelerateInterpolator(1.5f); 1274 } 1275 1276 @Override 1277 public void doFrame(long frameTimeNanos) { 1278 updateOffset(false); 1279 } 1280 1281 private void updateOffset(boolean force) { 1282 if (mWaitingForUpdate || force) { 1283 mWaitingForUpdate = false; 1284 if (computeScrollOffset() && mWindowToken != null) { 1285 try { 1286 mWallpaperManager.setWallpaperOffsets(mWindowToken, 1287 mWallpaperOffset.getCurrX(), 0.5f); 1288 setWallpaperOffsetSteps(); 1289 } catch (IllegalArgumentException e) { 1290 Log.e(TAG, "Error updating wallpaper offset: " + e); 1291 } 1292 } 1293 } 1294 } 1295 1296 public boolean computeScrollOffset() { 1297 final float oldOffset = mCurrentOffset; 1298 if (mAnimating) { 1299 long durationSinceAnimation = System.currentTimeMillis() - mAnimationStartTime; 1300 float t0 = durationSinceAnimation / (float) ANIMATION_DURATION; 1301 float t1 = mInterpolator.getInterpolation(t0); 1302 mCurrentOffset = mAnimationStartOffset + 1303 (mFinalOffset - mAnimationStartOffset) * t1; 1304 mAnimating = durationSinceAnimation < ANIMATION_DURATION; 1305 } else { 1306 mCurrentOffset = mFinalOffset; 1307 } 1308 1309 if (Math.abs(mCurrentOffset - mFinalOffset) > 0.0000001f) { 1310 scheduleUpdate(); 1311 } 1312 if (Math.abs(oldOffset - mCurrentOffset) > 0.0000001f) { 1313 return true; 1314 } 1315 return false; 1316 } 1317 1318 private float wallpaperOffsetForCurrentScroll() { 1319 if (getChildCount() <= 1) { 1320 return 0; 1321 } 1322 1323 // Exclude the leftmost page 1324 int emptyExtraPages = numEmptyScreensToIgnore(); 1325 int firstIndex = numCustomPages(); 1326 // Exclude the last extra empty screen (if we have > MIN_PARALLAX_PAGE_SPAN pages) 1327 int lastIndex = getChildCount() - 1 - emptyExtraPages; 1328 if (isLayoutRtl()) { 1329 int temp = firstIndex; 1330 firstIndex = lastIndex; 1331 lastIndex = temp; 1332 } 1333 1334 int firstPageScrollX = getScrollForPage(firstIndex); 1335 int scrollRange = getScrollForPage(lastIndex) - firstPageScrollX; 1336 if (scrollRange == 0) { 1337 return 0; 1338 } else { 1339 // TODO: do different behavior if it's a live wallpaper? 1340 // Sometimes the left parameter of the pages is animated during a layout transition; 1341 // this parameter offsets it to keep the wallpaper from animating as well 1342 int adjustedScroll = 1343 getScrollX() - firstPageScrollX - getLayoutTransitionOffsetForPage(0); 1344 float offset = Math.min(1, adjustedScroll / (float) scrollRange); 1345 offset = Math.max(0, offset); 1346 // Don't use up all the wallpaper parallax until you have at least 1347 // MIN_PARALLAX_PAGE_SPAN pages 1348 int numScrollingPages = getNumScreensExcludingEmptyAndCustom(); 1349 int parallaxPageSpan = Math.max(MIN_PARALLAX_PAGE_SPAN, numScrollingPages - 1); 1350 // On RTL devices, push the wallpaper offset to the right if we don't have enough 1351 // pages (ie if numScrollingPages < MIN_PARALLAX_PAGE_SPAN) 1352 int padding = isLayoutRtl() ? parallaxPageSpan - numScrollingPages + 1 : 0; 1353 return offset * (padding + numScrollingPages - 1) / parallaxPageSpan; 1354 } 1355 } 1356 1357 private int numEmptyScreensToIgnore() { 1358 int numScrollingPages = getChildCount() - numCustomPages(); 1359 if (numScrollingPages >= MIN_PARALLAX_PAGE_SPAN && hasExtraEmptyScreen()) { 1360 return 1; 1361 } else { 1362 return 0; 1363 } 1364 } 1365 1366 private int getNumScreensExcludingEmptyAndCustom() { 1367 int numScrollingPages = getChildCount() - numEmptyScreensToIgnore() - numCustomPages(); 1368 return numScrollingPages; 1369 } 1370 1371 public void syncWithScroll() { 1372 float offset = wallpaperOffsetForCurrentScroll(); 1373 mWallpaperOffset.setFinalX(offset); 1374 updateOffset(true); 1375 } 1376 1377 public float getCurrX() { 1378 return mCurrentOffset; 1379 } 1380 1381 public float getFinalX() { 1382 return mFinalOffset; 1383 } 1384 1385 private void animateToFinal() { 1386 mAnimating = true; 1387 mAnimationStartOffset = mCurrentOffset; 1388 mAnimationStartTime = System.currentTimeMillis(); 1389 } 1390 1391 private void setWallpaperOffsetSteps() { 1392 // Set wallpaper offset steps (1 / (number of screens - 1)) 1393 mWallpaperManager.setWallpaperOffsetSteps(1.0f / (getChildCount() - 1), 1.0f); 1394 } 1395 1396 public void setFinalX(float x) { 1397 scheduleUpdate(); 1398 mFinalOffset = Math.max(0f, Math.min(x, 1.0f)); 1399 if (getNumScreensExcludingEmptyAndCustom() != mNumScreens) { 1400 if (mNumScreens > 0) { 1401 // Don't animate if we're going from 0 screens 1402 animateToFinal(); 1403 } 1404 mNumScreens = getNumScreensExcludingEmptyAndCustom(); 1405 } 1406 } 1407 1408 private void scheduleUpdate() { 1409 if (!mWaitingForUpdate) { 1410 mChoreographer.postFrameCallback(this); 1411 mWaitingForUpdate = true; 1412 } 1413 } 1414 1415 public void jumpToFinal() { 1416 mCurrentOffset = mFinalOffset; 1417 } 1418 } 1419 1420 @Override 1421 public void computeScroll() { 1422 super.computeScroll(); 1423 mWallpaperOffset.syncWithScroll(); 1424 } 1425 1426 void showOutlines() { 1427 if (!isSmall() && !mIsSwitchingState) { 1428 if (mChildrenOutlineFadeOutAnimation != null) mChildrenOutlineFadeOutAnimation.cancel(); 1429 if (mChildrenOutlineFadeInAnimation != null) mChildrenOutlineFadeInAnimation.cancel(); 1430 mChildrenOutlineFadeInAnimation = LauncherAnimUtils.ofFloat(this, "childrenOutlineAlpha", 1.0f); 1431 mChildrenOutlineFadeInAnimation.setDuration(CHILDREN_OUTLINE_FADE_IN_DURATION); 1432 mChildrenOutlineFadeInAnimation.start(); 1433 } 1434 } 1435 1436 void hideOutlines() { 1437 if (!isSmall() && !mIsSwitchingState) { 1438 if (mChildrenOutlineFadeInAnimation != null) mChildrenOutlineFadeInAnimation.cancel(); 1439 if (mChildrenOutlineFadeOutAnimation != null) mChildrenOutlineFadeOutAnimation.cancel(); 1440 mChildrenOutlineFadeOutAnimation = LauncherAnimUtils.ofFloat(this, "childrenOutlineAlpha", 0.0f); 1441 mChildrenOutlineFadeOutAnimation.setDuration(CHILDREN_OUTLINE_FADE_OUT_DURATION); 1442 mChildrenOutlineFadeOutAnimation.setStartDelay(CHILDREN_OUTLINE_FADE_OUT_DELAY); 1443 mChildrenOutlineFadeOutAnimation.start(); 1444 } 1445 } 1446 1447 public void showOutlinesTemporarily() { 1448 if (!mIsPageMoving && !isTouchActive()) { 1449 snapToPage(mCurrentPage); 1450 } 1451 } 1452 1453 public void setChildrenOutlineAlpha(float alpha) { 1454 mChildrenOutlineAlpha = alpha; 1455 for (int i = 0; i < getChildCount(); i++) { 1456 CellLayout cl = (CellLayout) getChildAt(i); 1457 cl.setBackgroundAlpha(alpha); 1458 } 1459 } 1460 1461 public float getChildrenOutlineAlpha() { 1462 return mChildrenOutlineAlpha; 1463 } 1464 1465 void disableBackground() { 1466 mDrawBackground = false; 1467 } 1468 void enableBackground() { 1469 mDrawBackground = true; 1470 } 1471 1472 private void animateBackgroundGradient(float finalAlpha, boolean animated) { 1473 if (mBackground == null) return; 1474 if (mBackgroundFadeInAnimation != null) { 1475 mBackgroundFadeInAnimation.cancel(); 1476 mBackgroundFadeInAnimation = null; 1477 } 1478 if (mBackgroundFadeOutAnimation != null) { 1479 mBackgroundFadeOutAnimation.cancel(); 1480 mBackgroundFadeOutAnimation = null; 1481 } 1482 float startAlpha = getBackgroundAlpha(); 1483 if (finalAlpha != startAlpha) { 1484 if (animated) { 1485 mBackgroundFadeOutAnimation = 1486 LauncherAnimUtils.ofFloat(this, startAlpha, finalAlpha); 1487 mBackgroundFadeOutAnimation.addUpdateListener(new AnimatorUpdateListener() { 1488 public void onAnimationUpdate(ValueAnimator animation) { 1489 setBackgroundAlpha(((Float) animation.getAnimatedValue()).floatValue()); 1490 } 1491 }); 1492 mBackgroundFadeOutAnimation.setInterpolator(new DecelerateInterpolator(1.5f)); 1493 mBackgroundFadeOutAnimation.setDuration(BACKGROUND_FADE_OUT_DURATION); 1494 mBackgroundFadeOutAnimation.start(); 1495 } else { 1496 setBackgroundAlpha(finalAlpha); 1497 } 1498 } 1499 } 1500 1501 public void setBackgroundAlpha(float alpha) { 1502 if (alpha != mBackgroundAlpha) { 1503 mBackgroundAlpha = alpha; 1504 invalidate(); 1505 } 1506 } 1507 1508 public float getBackgroundAlpha() { 1509 return mBackgroundAlpha; 1510 } 1511 1512 float backgroundAlphaInterpolator(float r) { 1513 float pivotA = 0.1f; 1514 float pivotB = 0.4f; 1515 if (r < pivotA) { 1516 return 0; 1517 } else if (r > pivotB) { 1518 return 1.0f; 1519 } else { 1520 return (r - pivotA)/(pivotB - pivotA); 1521 } 1522 } 1523 1524 private void updatePageAlphaValues(int screenCenter) { 1525 boolean isInOverscroll = mOverScrollX < 0 || mOverScrollX > mMaxScrollX; 1526 if (mWorkspaceFadeInAdjacentScreens && 1527 mState == State.NORMAL && 1528 !mIsSwitchingState && 1529 !isInOverscroll) { 1530 for (int i = numCustomPages(); i < getChildCount(); i++) { 1531 CellLayout child = (CellLayout) getChildAt(i); 1532 if (child != null) { 1533 float scrollProgress = getScrollProgress(screenCenter, child, i); 1534 float alpha = 1 - Math.abs(scrollProgress); 1535 child.getShortcutsAndWidgets().setAlpha(alpha); 1536 } 1537 } 1538 } 1539 } 1540 1541 private void setChildrenBackgroundAlphaMultipliers(float a) { 1542 for (int i = 0; i < getChildCount(); i++) { 1543 CellLayout child = (CellLayout) getChildAt(i); 1544 child.setBackgroundAlphaMultiplier(a); 1545 } 1546 } 1547 1548 public boolean hasCustomContent() { 1549 return (mScreenOrder.size() > 0 && mScreenOrder.get(0) == CUSTOM_CONTENT_SCREEN_ID); 1550 } 1551 1552 public int numCustomPages() { 1553 return hasCustomContent() ? 1 : 0; 1554 } 1555 1556 public boolean isOnOrMovingToCustomContent() { 1557 return hasCustomContent() && getNextPage() == 0; 1558 } 1559 1560 private void updateStateForCustomContent(int screenCenter) { 1561 float translationX = 0; 1562 float progress = 0; 1563 if (hasCustomContent()) { 1564 int index = mScreenOrder.indexOf(CUSTOM_CONTENT_SCREEN_ID); 1565 1566 int scrollDelta = getScrollX() - getScrollForPage(index) - 1567 getLayoutTransitionOffsetForPage(index); 1568 float scrollRange = getScrollForPage(index + 1) - getScrollForPage(index); 1569 translationX = scrollRange - scrollDelta; 1570 progress = (scrollRange - scrollDelta) / scrollRange; 1571 1572 if (isLayoutRtl()) { 1573 translationX = Math.min(0, translationX); 1574 } else { 1575 translationX = Math.max(0, translationX); 1576 } 1577 progress = Math.max(0, progress); 1578 } 1579 1580 if (Float.compare(progress, mLastCustomContentScrollProgress) == 0) return; 1581 1582 CellLayout cc = mWorkspaceScreens.get(CUSTOM_CONTENT_SCREEN_ID); 1583 if (progress > 0 && cc.getVisibility() != VISIBLE && !isSmall()) { 1584 cc.setVisibility(VISIBLE); 1585 } 1586 1587 mLastCustomContentScrollProgress = progress; 1588 1589 setBackgroundAlpha(progress * 0.8f); 1590 1591 if (mLauncher.getHotseat() != null) { 1592 mLauncher.getHotseat().setTranslationX(translationX); 1593 } 1594 1595 if (getPageIndicator() != null) { 1596 getPageIndicator().setTranslationX(translationX); 1597 } 1598 1599 if (mCustomContentCallbacks != null) { 1600 mCustomContentCallbacks.onScrollProgressChanged(progress); 1601 } 1602 } 1603 1604 @Override 1605 protected OnClickListener getPageIndicatorClickListener() { 1606 AccessibilityManager am = (AccessibilityManager) 1607 getContext().getSystemService(Context.ACCESSIBILITY_SERVICE); 1608 if (!am.isTouchExplorationEnabled()) { 1609 return null; 1610 } 1611 OnClickListener listener = new OnClickListener() { 1612 @Override 1613 public void onClick(View arg0) { 1614 enterOverviewMode(); 1615 } 1616 }; 1617 return listener; 1618 } 1619 1620 @Override 1621 protected void screenScrolled(int screenCenter) { 1622 final boolean isRtl = isLayoutRtl(); 1623 super.screenScrolled(screenCenter); 1624 1625 updatePageAlphaValues(screenCenter); 1626 updateStateForCustomContent(screenCenter); 1627 enableHwLayersOnVisiblePages(); 1628 1629 boolean shouldOverScroll = (mOverScrollX < 0 && (!hasCustomContent() || isLayoutRtl())) || 1630 (mOverScrollX > mMaxScrollX && (!hasCustomContent() || !isLayoutRtl())); 1631 1632 if (shouldOverScroll) { 1633 int index = 0; 1634 float pivotX = 0f; 1635 final float leftBiasedPivot = 0.25f; 1636 final float rightBiasedPivot = 0.75f; 1637 final int lowerIndex = 0; 1638 final int upperIndex = getChildCount() - 1; 1639 1640 final boolean isLeftPage = mOverScrollX < 0; 1641 index = (!isRtl && isLeftPage) || (isRtl && !isLeftPage) ? lowerIndex : upperIndex; 1642 pivotX = isLeftPage ? rightBiasedPivot : leftBiasedPivot; 1643 1644 CellLayout cl = (CellLayout) getChildAt(index); 1645 float scrollProgress = getScrollProgress(screenCenter, cl, index); 1646 cl.setOverScrollAmount(Math.abs(scrollProgress), isLeftPage); 1647 float rotation = -WORKSPACE_OVERSCROLL_ROTATION * scrollProgress; 1648 cl.setRotationY(rotation); 1649 1650 if (!mOverscrollTransformsSet || Float.compare(mLastOverscrollPivotX, pivotX) != 0) { 1651 mOverscrollTransformsSet = true; 1652 mLastOverscrollPivotX = pivotX; 1653 cl.setCameraDistance(mDensity * mCameraDistance); 1654 cl.setPivotX(cl.getMeasuredWidth() * pivotX); 1655 cl.setPivotY(cl.getMeasuredHeight() * 0.5f); 1656 cl.setOverscrollTransformsDirty(true); 1657 } 1658 } else { 1659 if (mOverscrollTransformsSet) { 1660 mOverscrollTransformsSet = false; 1661 ((CellLayout) getChildAt(0)).resetOverscrollTransforms(); 1662 ((CellLayout) getChildAt(getChildCount() - 1)).resetOverscrollTransforms(); 1663 } 1664 } 1665 } 1666 1667 @Override 1668 protected void overScroll(float amount) { 1669 acceleratedOverScroll(amount); 1670 } 1671 1672 protected void onAttachedToWindow() { 1673 super.onAttachedToWindow(); 1674 mWindowToken = getWindowToken(); 1675 computeScroll(); 1676 mDragController.setWindowToken(mWindowToken); 1677 } 1678 1679 protected void onDetachedFromWindow() { 1680 super.onDetachedFromWindow(); 1681 mWindowToken = null; 1682 } 1683 1684 protected void onResume() { 1685 if (getPageIndicator() != null) { 1686 // In case accessibility state has changed, we need to perform this on every 1687 // attach to window 1688 OnClickListener listener = getPageIndicatorClickListener(); 1689 if (listener != null) { 1690 getPageIndicator().setOnClickListener(listener); 1691 } 1692 } 1693 AccessibilityManager am = (AccessibilityManager) 1694 getContext().getSystemService(Context.ACCESSIBILITY_SERVICE); 1695 sAccessibilityEnabled = am.isEnabled(); 1696 } 1697 1698 @Override 1699 protected void onLayout(boolean changed, int left, int top, int right, int bottom) { 1700 if (mFirstLayout && mCurrentPage >= 0 && mCurrentPage < getChildCount()) { 1701 mWallpaperOffset.syncWithScroll(); 1702 mWallpaperOffset.jumpToFinal(); 1703 } 1704 super.onLayout(changed, left, top, right, bottom); 1705 } 1706 1707 @Override 1708 protected void onDraw(Canvas canvas) { 1709 // Draw the background gradient if necessary 1710 if (mBackground != null && mBackgroundAlpha > 0.0f && mDrawBackground) { 1711 int alpha = (int) (mBackgroundAlpha * 255); 1712 mBackground.setAlpha(alpha); 1713 mBackground.setBounds(getScrollX(), 0, getScrollX() + getMeasuredWidth(), 1714 getMeasuredHeight()); 1715 mBackground.draw(canvas); 1716 } 1717 1718 super.onDraw(canvas); 1719 1720 // Call back to LauncherModel to finish binding after the first draw 1721 post(mBindPages); 1722 } 1723 1724 boolean isDrawingBackgroundGradient() { 1725 return (mBackground != null && mBackgroundAlpha > 0.0f && mDrawBackground); 1726 } 1727 1728 @Override 1729 protected boolean onRequestFocusInDescendants(int direction, Rect previouslyFocusedRect) { 1730 if (!mLauncher.isAllAppsVisible()) { 1731 final Folder openFolder = getOpenFolder(); 1732 if (openFolder != null) { 1733 return openFolder.requestFocus(direction, previouslyFocusedRect); 1734 } else { 1735 return super.onRequestFocusInDescendants(direction, previouslyFocusedRect); 1736 } 1737 } 1738 return false; 1739 } 1740 1741 @Override 1742 public int getDescendantFocusability() { 1743 if (isSmall()) { 1744 return ViewGroup.FOCUS_BLOCK_DESCENDANTS; 1745 } 1746 return super.getDescendantFocusability(); 1747 } 1748 1749 @Override 1750 public void addFocusables(ArrayList<View> views, int direction, int focusableMode) { 1751 if (!mLauncher.isAllAppsVisible()) { 1752 final Folder openFolder = getOpenFolder(); 1753 if (openFolder != null) { 1754 openFolder.addFocusables(views, direction); 1755 } else { 1756 super.addFocusables(views, direction, focusableMode); 1757 } 1758 } 1759 } 1760 1761 public boolean isSmall() { 1762 return mState == State.SMALL || mState == State.SPRING_LOADED || mState == State.OVERVIEW; 1763 } 1764 1765 void enableChildrenCache(int fromPage, int toPage) { 1766 if (fromPage > toPage) { 1767 final int temp = fromPage; 1768 fromPage = toPage; 1769 toPage = temp; 1770 } 1771 1772 final int screenCount = getChildCount(); 1773 1774 fromPage = Math.max(fromPage, 0); 1775 toPage = Math.min(toPage, screenCount - 1); 1776 1777 for (int i = fromPage; i <= toPage; i++) { 1778 final CellLayout layout = (CellLayout) getChildAt(i); 1779 layout.setChildrenDrawnWithCacheEnabled(true); 1780 layout.setChildrenDrawingCacheEnabled(true); 1781 } 1782 } 1783 1784 void clearChildrenCache() { 1785 final int screenCount = getChildCount(); 1786 for (int i = 0; i < screenCount; i++) { 1787 final CellLayout layout = (CellLayout) getChildAt(i); 1788 layout.setChildrenDrawnWithCacheEnabled(false); 1789 // In software mode, we don't want the items to continue to be drawn into bitmaps 1790 if (!isHardwareAccelerated()) { 1791 layout.setChildrenDrawingCacheEnabled(false); 1792 } 1793 } 1794 } 1795 1796 private void updateChildrenLayersEnabled(boolean force) { 1797 boolean small = mState == State.SMALL || mState == State.OVERVIEW || mIsSwitchingState; 1798 boolean enableChildrenLayers = force || small || mAnimatingViewIntoPlace || isPageMoving(); 1799 1800 if (enableChildrenLayers != mChildrenLayersEnabled) { 1801 mChildrenLayersEnabled = enableChildrenLayers; 1802 if (mChildrenLayersEnabled) { 1803 enableHwLayersOnVisiblePages(); 1804 } else { 1805 for (int i = 0; i < getPageCount(); i++) { 1806 final CellLayout cl = (CellLayout) getChildAt(i); 1807 cl.enableHardwareLayer(false); 1808 } 1809 } 1810 } 1811 } 1812 1813 private void enableHwLayersOnVisiblePages() { 1814 if (mChildrenLayersEnabled) { 1815 final int screenCount = getChildCount(); 1816 getVisiblePages(mTempVisiblePagesRange); 1817 int leftScreen = mTempVisiblePagesRange[0]; 1818 int rightScreen = mTempVisiblePagesRange[1]; 1819 if (leftScreen == rightScreen) { 1820 // make sure we're caching at least two pages always 1821 if (rightScreen < screenCount - 1) { 1822 rightScreen++; 1823 } else if (leftScreen > 0) { 1824 leftScreen--; 1825 } 1826 } 1827 1828 final CellLayout customScreen = mWorkspaceScreens.get(CUSTOM_CONTENT_SCREEN_ID); 1829 for (int i = 0; i < screenCount; i++) { 1830 final CellLayout layout = (CellLayout) getPageAt(i); 1831 1832 // enable layers between left and right screen inclusive, except for the 1833 // customScreen, which may animate its content during transitions. 1834 boolean enableLayer = layout != customScreen && 1835 leftScreen <= i && i <= rightScreen && shouldDrawChild(layout); 1836 layout.enableHardwareLayer(enableLayer); 1837 } 1838 } 1839 } 1840 1841 public void buildPageHardwareLayers() { 1842 // force layers to be enabled just for the call to buildLayer 1843 updateChildrenLayersEnabled(true); 1844 if (getWindowToken() != null) { 1845 final int childCount = getChildCount(); 1846 for (int i = 0; i < childCount; i++) { 1847 CellLayout cl = (CellLayout) getChildAt(i); 1848 cl.buildHardwareLayer(); 1849 } 1850 } 1851 updateChildrenLayersEnabled(false); 1852 } 1853 1854 protected void onWallpaperTap(MotionEvent ev) { 1855 final int[] position = mTempCell; 1856 getLocationOnScreen(position); 1857 1858 int pointerIndex = ev.getActionIndex(); 1859 position[0] += (int) ev.getX(pointerIndex); 1860 position[1] += (int) ev.getY(pointerIndex); 1861 1862 mWallpaperManager.sendWallpaperCommand(getWindowToken(), 1863 ev.getAction() == MotionEvent.ACTION_UP 1864 ? WallpaperManager.COMMAND_TAP : WallpaperManager.COMMAND_SECONDARY_TAP, 1865 position[0], position[1], 0, null); 1866 } 1867 1868 /* 1869 * This interpolator emulates the rate at which the perceived scale of an object changes 1870 * as its distance from a camera increases. When this interpolator is applied to a scale 1871 * animation on a view, it evokes the sense that the object is shrinking due to moving away 1872 * from the camera. 1873 */ 1874 static class ZInterpolator implements TimeInterpolator { 1875 private float focalLength; 1876 1877 public ZInterpolator(float foc) { 1878 focalLength = foc; 1879 } 1880 1881 public float getInterpolation(float input) { 1882 return (1.0f - focalLength / (focalLength + input)) / 1883 (1.0f - focalLength / (focalLength + 1.0f)); 1884 } 1885 } 1886 1887 /* 1888 * The exact reverse of ZInterpolator. 1889 */ 1890 static class InverseZInterpolator implements TimeInterpolator { 1891 private ZInterpolator zInterpolator; 1892 public InverseZInterpolator(float foc) { 1893 zInterpolator = new ZInterpolator(foc); 1894 } 1895 public float getInterpolation(float input) { 1896 return 1 - zInterpolator.getInterpolation(1 - input); 1897 } 1898 } 1899 1900 /* 1901 * ZInterpolator compounded with an ease-out. 1902 */ 1903 static class ZoomOutInterpolator implements TimeInterpolator { 1904 private final DecelerateInterpolator decelerate = new DecelerateInterpolator(0.75f); 1905 private final ZInterpolator zInterpolator = new ZInterpolator(0.13f); 1906 1907 public float getInterpolation(float input) { 1908 return decelerate.getInterpolation(zInterpolator.getInterpolation(input)); 1909 } 1910 } 1911 1912 /* 1913 * InvereZInterpolator compounded with an ease-out. 1914 */ 1915 static class ZoomInInterpolator implements TimeInterpolator { 1916 private final InverseZInterpolator inverseZInterpolator = new InverseZInterpolator(0.35f); 1917 private final DecelerateInterpolator decelerate = new DecelerateInterpolator(3.0f); 1918 1919 public float getInterpolation(float input) { 1920 return decelerate.getInterpolation(inverseZInterpolator.getInterpolation(input)); 1921 } 1922 } 1923 1924 private final ZoomInInterpolator mZoomInInterpolator = new ZoomInInterpolator(); 1925 1926 /* 1927 * 1928 * We call these methods (onDragStartedWithItemSpans/onDragStartedWithSize) whenever we 1929 * start a drag in Launcher, regardless of whether the drag has ever entered the Workspace 1930 * 1931 * These methods mark the appropriate pages as accepting drops (which alters their visual 1932 * appearance). 1933 * 1934 */ 1935 public void onDragStartedWithItem(View v) { 1936 final Canvas canvas = new Canvas(); 1937 1938 // The outline is used to visualize where the item will land if dropped 1939 mDragOutline = createDragOutline(v, canvas, DRAG_BITMAP_PADDING); 1940 } 1941 1942 public void onDragStartedWithItem(PendingAddItemInfo info, Bitmap b, boolean clipAlpha) { 1943 final Canvas canvas = new Canvas(); 1944 1945 int[] size = estimateItemSize(info.spanX, info.spanY, info, false); 1946 1947 // The outline is used to visualize where the item will land if dropped 1948 mDragOutline = createDragOutline(b, canvas, DRAG_BITMAP_PADDING, size[0], 1949 size[1], clipAlpha); 1950 } 1951 1952 public void exitWidgetResizeMode() { 1953 DragLayer dragLayer = mLauncher.getDragLayer(); 1954 dragLayer.clearAllResizeFrames(); 1955 } 1956 1957 private void initAnimationArrays() { 1958 final int childCount = getChildCount(); 1959 if (mLastChildCount == childCount) return; 1960 1961 mOldBackgroundAlphas = new float[childCount]; 1962 mOldAlphas = new float[childCount]; 1963 mNewBackgroundAlphas = new float[childCount]; 1964 mNewAlphas = new float[childCount]; 1965 } 1966 1967 Animator getChangeStateAnimation(final State state, boolean animated) { 1968 return getChangeStateAnimation(state, animated, 0, -1); 1969 } 1970 1971 @Override 1972 protected void getOverviewModePages(int[] range) { 1973 int start = numCustomPages(); 1974 int end = getChildCount() - 1; 1975 1976 range[0] = Math.max(0, Math.min(start, getChildCount() - 1)); 1977 range[1] = Math.max(0, end); 1978 } 1979 1980 protected void onStartReordering() { 1981 super.onStartReordering(); 1982 showOutlines(); 1983 // Reordering handles its own animations, disable the automatic ones. 1984 disableLayoutTransitions(); 1985 } 1986 1987 protected void onEndReordering() { 1988 super.onEndReordering(); 1989 1990 hideOutlines(); 1991 mScreenOrder.clear(); 1992 int count = getChildCount(); 1993 for (int i = 0; i < count; i++) { 1994 CellLayout cl = ((CellLayout) getChildAt(i)); 1995 mScreenOrder.add(getIdForScreen(cl)); 1996 } 1997 1998 mLauncher.getModel().updateWorkspaceScreenOrder(mLauncher, mScreenOrder); 1999 2000 // Re-enable auto layout transitions for page deletion. 2001 enableLayoutTransitions(); 2002 } 2003 2004 public boolean isInOverviewMode() { 2005 return mState == State.OVERVIEW; 2006 } 2007 2008 public boolean enterOverviewMode() { 2009 if (mTouchState != TOUCH_STATE_REST) { 2010 return false; 2011 } 2012 enableOverviewMode(true, -1, true); 2013 return true; 2014 } 2015 2016 public void exitOverviewMode(boolean animated) { 2017 exitOverviewMode(-1, animated); 2018 } 2019 2020 public void exitOverviewMode(int snapPage, boolean animated) { 2021 enableOverviewMode(false, snapPage, animated); 2022 } 2023 2024 private void enableOverviewMode(boolean enable, int snapPage, boolean animated) { 2025 State finalState = Workspace.State.OVERVIEW; 2026 if (!enable) { 2027 finalState = Workspace.State.NORMAL; 2028 } 2029 2030 Animator workspaceAnim = getChangeStateAnimation(finalState, animated, 0, snapPage); 2031 if (workspaceAnim != null) { 2032 onTransitionPrepare(); 2033 workspaceAnim.addListener(new AnimatorListenerAdapter() { 2034 @Override 2035 public void onAnimationEnd(Animator arg0) { 2036 onTransitionEnd(); 2037 } 2038 }); 2039 workspaceAnim.start(); 2040 } 2041 } 2042 2043 int getOverviewModeTranslationY() { 2044 LauncherAppState app = LauncherAppState.getInstance(); 2045 DeviceProfile grid = app.getDynamicGrid().getDeviceProfile(); 2046 Rect overviewBar = grid.getOverviewModeButtonBarRect(); 2047 2048 int availableHeight = getViewportHeight(); 2049 int scaledHeight = (int) (mOverviewModeShrinkFactor * getNormalChildHeight()); 2050 int offsetFromTopEdge = (availableHeight - scaledHeight) / 2; 2051 int offsetToCenterInOverview = (availableHeight - mInsets.top - overviewBar.height() 2052 - scaledHeight) / 2; 2053 2054 return -offsetFromTopEdge + mInsets.top + offsetToCenterInOverview; 2055 } 2056 2057 boolean shouldVoiceButtonProxyBeVisible() { 2058 if (isOnOrMovingToCustomContent()) { 2059 return false; 2060 } 2061 if (mState != State.NORMAL) { 2062 return false; 2063 } 2064 return true; 2065 } 2066 2067 public void updateInteractionForState() { 2068 if (mState != State.NORMAL) { 2069 mLauncher.onInteractionBegin(); 2070 } else { 2071 mLauncher.onInteractionEnd(); 2072 } 2073 } 2074 2075 private void setState(State state) { 2076 mState = state; 2077 updateInteractionForState(); 2078 updateAccessibilityFlags(); 2079 } 2080 2081 private void updateAccessibilityFlags() { 2082 int accessible = mState == State.NORMAL ? 2083 ViewCompat.IMPORTANT_FOR_ACCESSIBILITY_YES : 2084 ViewCompat.IMPORTANT_FOR_ACCESSIBILITY_NO_HIDE_DESCENDANTS; 2085 setImportantForAccessibility(accessible); 2086 } 2087 2088 Animator getChangeStateAnimation(final State state, boolean animated, int delay, int snapPage) { 2089 if (mState == state) { 2090 return null; 2091 } 2092 2093 // Initialize animation arrays for the first time if necessary 2094 initAnimationArrays(); 2095 2096 AnimatorSet anim = animated ? LauncherAnimUtils.createAnimatorSet() : null; 2097 2098 final State oldState = mState; 2099 final boolean oldStateIsNormal = (oldState == State.NORMAL); 2100 final boolean oldStateIsSpringLoaded = (oldState == State.SPRING_LOADED); 2101 final boolean oldStateIsSmall = (oldState == State.SMALL); 2102 final boolean oldStateIsOverview = (oldState == State.OVERVIEW); 2103 setState(state); 2104 final boolean stateIsNormal = (state == State.NORMAL); 2105 final boolean stateIsSpringLoaded = (state == State.SPRING_LOADED); 2106 final boolean stateIsSmall = (state == State.SMALL); 2107 final boolean stateIsOverview = (state == State.OVERVIEW); 2108 float finalBackgroundAlpha = (stateIsSpringLoaded || stateIsOverview) ? 1.0f : 0f; 2109 float finalHotseatAndPageIndicatorAlpha = (stateIsOverview || stateIsSmall) ? 0f : 1f; 2110 float finalOverviewPanelAlpha = stateIsOverview ? 1f : 0f; 2111 float finalSearchBarAlpha = !stateIsNormal ? 0f : 1f; 2112 float finalWorkspaceTranslationY = stateIsOverview ? getOverviewModeTranslationY() : 0; 2113 2114 boolean workspaceToAllApps = (oldStateIsNormal && stateIsSmall); 2115 boolean allAppsToWorkspace = (oldStateIsSmall && stateIsNormal); 2116 boolean workspaceToOverview = (oldStateIsNormal && stateIsOverview); 2117 boolean overviewToWorkspace = (oldStateIsOverview && stateIsNormal); 2118 2119 mNewScale = 1.0f; 2120 2121 if (oldStateIsOverview) { 2122 disableFreeScroll(); 2123 } else if (stateIsOverview) { 2124 enableFreeScroll(); 2125 } 2126 2127 if (state != State.NORMAL) { 2128 if (stateIsSpringLoaded) { 2129 mNewScale = mSpringLoadedShrinkFactor; 2130 } else if (stateIsOverview) { 2131 mNewScale = mOverviewModeShrinkFactor; 2132 } else if (stateIsSmall){ 2133 mNewScale = mOverviewModeShrinkFactor - 0.3f; 2134 } 2135 if (workspaceToAllApps) { 2136 updateChildrenLayersEnabled(false); 2137 } 2138 } 2139 2140 final int duration; 2141 if (workspaceToAllApps) { 2142 duration = getResources().getInteger(R.integer.config_workspaceUnshrinkTime); 2143 } else if (workspaceToOverview || overviewToWorkspace) { 2144 duration = getResources().getInteger(R.integer.config_overviewTransitionTime); 2145 } else { 2146 duration = getResources().getInteger(R.integer.config_appsCustomizeWorkspaceShrinkTime); 2147 } 2148 2149 if (snapPage == -1) { 2150 snapPage = getPageNearestToCenterOfScreen(); 2151 } 2152 snapToPage(snapPage, duration, mZoomInInterpolator); 2153 2154 for (int i = 0; i < getChildCount(); i++) { 2155 final CellLayout cl = (CellLayout) getChildAt(i); 2156 boolean isCurrentPage = (i == snapPage); 2157 float initialAlpha = cl.getShortcutsAndWidgets().getAlpha(); 2158 float finalAlpha; 2159 if (stateIsSmall) { 2160 finalAlpha = 0f; 2161 } else if (stateIsNormal && mWorkspaceFadeInAdjacentScreens) { 2162 finalAlpha = (i == snapPage || i < numCustomPages()) ? 1f : 0f; 2163 } else { 2164 finalAlpha = 1f; 2165 } 2166 2167 // If we are animating to/from the small state, then hide the side pages and fade the 2168 // current page in 2169 if (!mIsSwitchingState) { 2170 if (workspaceToAllApps || allAppsToWorkspace) { 2171 if (allAppsToWorkspace && isCurrentPage) { 2172 initialAlpha = 0f; 2173 } else if (!isCurrentPage) { 2174 initialAlpha = finalAlpha = 0f; 2175 } 2176 cl.setShortcutAndWidgetAlpha(initialAlpha); 2177 } 2178 } 2179 2180 mOldAlphas[i] = initialAlpha; 2181 mNewAlphas[i] = finalAlpha; 2182 if (animated) { 2183 mOldBackgroundAlphas[i] = cl.getBackgroundAlpha(); 2184 mNewBackgroundAlphas[i] = finalBackgroundAlpha; 2185 } else { 2186 cl.setBackgroundAlpha(finalBackgroundAlpha); 2187 cl.setShortcutAndWidgetAlpha(finalAlpha); 2188 } 2189 } 2190 2191 final View searchBar = mLauncher.getQsbBar(); 2192 final View overviewPanel = mLauncher.getOverviewPanel(); 2193 final View hotseat = mLauncher.getHotseat(); 2194 final View pageIndicator = getPageIndicator(); 2195 if (animated) { 2196 anim.setDuration(duration); 2197 LauncherViewPropertyAnimator scale = new LauncherViewPropertyAnimator(this); 2198 scale.scaleX(mNewScale) 2199 .scaleY(mNewScale) 2200 .translationY(finalWorkspaceTranslationY) 2201 .setInterpolator(mZoomInInterpolator); 2202 anim.play(scale); 2203 for (int index = 0; index < getChildCount(); index++) { 2204 final int i = index; 2205 final CellLayout cl = (CellLayout) getChildAt(i); 2206 float currentAlpha = cl.getShortcutsAndWidgets().getAlpha(); 2207 if (mOldAlphas[i] == 0 && mNewAlphas[i] == 0) { 2208 cl.setBackgroundAlpha(mNewBackgroundAlphas[i]); 2209 cl.setShortcutAndWidgetAlpha(mNewAlphas[i]); 2210 } else { 2211 if (mOldAlphas[i] != mNewAlphas[i] || currentAlpha != mNewAlphas[i]) { 2212 LauncherViewPropertyAnimator alphaAnim = 2213 new LauncherViewPropertyAnimator(cl.getShortcutsAndWidgets()); 2214 alphaAnim.alpha(mNewAlphas[i]) 2215 .setInterpolator(mZoomInInterpolator); 2216 anim.play(alphaAnim); 2217 } 2218 if (mOldBackgroundAlphas[i] != 0 || 2219 mNewBackgroundAlphas[i] != 0) { 2220 ValueAnimator bgAnim = 2221 LauncherAnimUtils.ofFloat(cl, 0f, 1f); 2222 bgAnim.setInterpolator(mZoomInInterpolator); 2223 bgAnim.addUpdateListener(new LauncherAnimatorUpdateListener() { 2224 public void onAnimationUpdate(float a, float b) { 2225 cl.setBackgroundAlpha( 2226 a * mOldBackgroundAlphas[i] + 2227 b * mNewBackgroundAlphas[i]); 2228 } 2229 }); 2230 anim.play(bgAnim); 2231 } 2232 } 2233 } 2234 Animator pageIndicatorAlpha = null; 2235 if (pageIndicator != null) { 2236 pageIndicatorAlpha = new LauncherViewPropertyAnimator(pageIndicator) 2237 .alpha(finalHotseatAndPageIndicatorAlpha).withLayer(); 2238 } else { 2239 // create a dummy animation so we don't need to do null checks later 2240 pageIndicatorAlpha = ValueAnimator.ofFloat(0, 0); 2241 } 2242 Animator hotseatAlpha = new LauncherViewPropertyAnimator(hotseat) 2243 .alpha(finalHotseatAndPageIndicatorAlpha).withLayer(); 2244 Animator searchBarAlpha = new LauncherViewPropertyAnimator(searchBar) 2245 .alpha(finalSearchBarAlpha).withLayer(); 2246 Animator overviewPanelAlpha = new LauncherViewPropertyAnimator(overviewPanel) 2247 .alpha(finalOverviewPanelAlpha).withLayer(); 2248 2249 pageIndicatorAlpha.addListener(new AlphaUpdateListener(pageIndicator)); 2250 hotseatAlpha.addListener(new AlphaUpdateListener(hotseat)); 2251 searchBarAlpha.addListener(new AlphaUpdateListener(searchBar)); 2252 overviewPanelAlpha.addListener(new AlphaUpdateListener(overviewPanel)); 2253 2254 if (workspaceToOverview) { 2255 pageIndicatorAlpha.setInterpolator(new DecelerateInterpolator(2)); 2256 hotseatAlpha.setInterpolator(new DecelerateInterpolator(2)); 2257 overviewPanelAlpha.setInterpolator(null); 2258 } else if (overviewToWorkspace) { 2259 pageIndicatorAlpha.setInterpolator(null); 2260 hotseatAlpha.setInterpolator(null); 2261 overviewPanelAlpha.setInterpolator(new DecelerateInterpolator(2)); 2262 } 2263 searchBarAlpha.setInterpolator(null); 2264 2265 anim.play(overviewPanelAlpha); 2266 anim.play(hotseatAlpha); 2267 anim.play(searchBarAlpha); 2268 anim.play(pageIndicatorAlpha); 2269 anim.setStartDelay(delay); 2270 } else { 2271 overviewPanel.setAlpha(finalOverviewPanelAlpha); 2272 AlphaUpdateListener.updateVisibility(overviewPanel); 2273 hotseat.setAlpha(finalHotseatAndPageIndicatorAlpha); 2274 AlphaUpdateListener.updateVisibility(hotseat); 2275 if (pageIndicator != null) { 2276 pageIndicator.setAlpha(finalHotseatAndPageIndicatorAlpha); 2277 AlphaUpdateListener.updateVisibility(pageIndicator); 2278 } 2279 searchBar.setAlpha(finalSearchBarAlpha); 2280 AlphaUpdateListener.updateVisibility(searchBar); 2281 updateCustomContentVisibility(); 2282 setScaleX(mNewScale); 2283 setScaleY(mNewScale); 2284 setTranslationY(finalWorkspaceTranslationY); 2285 } 2286 mLauncher.updateVoiceButtonProxyVisible(false); 2287 2288 if (stateIsSpringLoaded) { 2289 // Right now we're covered by Apps Customize 2290 // Show the background gradient immediately, so the gradient will 2291 // be showing once AppsCustomize disappears 2292 animateBackgroundGradient(getResources().getInteger( 2293 R.integer.config_appsCustomizeSpringLoadedBgAlpha) / 100f, false); 2294 } else if (stateIsOverview) { 2295 animateBackgroundGradient(getResources().getInteger( 2296 R.integer.config_appsCustomizeSpringLoadedBgAlpha) / 100f, true); 2297 } else { 2298 // Fade the background gradient away 2299 animateBackgroundGradient(0f, animated); 2300 } 2301 return anim; 2302 } 2303 2304 static class AlphaUpdateListener implements AnimatorUpdateListener, AnimatorListener { 2305 View view; 2306 public AlphaUpdateListener(View v) { 2307 view = v; 2308 } 2309 2310 @Override 2311 public void onAnimationUpdate(ValueAnimator arg0) { 2312 updateVisibility(view); 2313 } 2314 2315 public static void updateVisibility(View view) { 2316 // We want to avoid the extra layout pass by setting the views to GONE unless 2317 // accessibility is on, in which case not setting them to GONE causes a glitch. 2318 int invisibleState = sAccessibilityEnabled ? GONE : INVISIBLE; 2319 if (view.getAlpha() < ALPHA_CUTOFF_THRESHOLD && view.getVisibility() != invisibleState) { 2320 view.setVisibility(invisibleState); 2321 } else if (view.getAlpha() > ALPHA_CUTOFF_THRESHOLD 2322 && view.getVisibility() != VISIBLE) { 2323 view.setVisibility(VISIBLE); 2324 } 2325 } 2326 2327 @Override 2328 public void onAnimationCancel(Animator arg0) { 2329 } 2330 2331 @Override 2332 public void onAnimationEnd(Animator arg0) { 2333 updateVisibility(view); 2334 } 2335 2336 @Override 2337 public void onAnimationRepeat(Animator arg0) { 2338 } 2339 2340 @Override 2341 public void onAnimationStart(Animator arg0) { 2342 // We want the views to be visible for animation, so fade-in/out is visible 2343 view.setVisibility(VISIBLE); 2344 } 2345 } 2346 2347 @Override 2348 public void onLauncherTransitionPrepare(Launcher l, boolean animated, boolean toWorkspace) { 2349 onTransitionPrepare(); 2350 } 2351 2352 @Override 2353 public void onLauncherTransitionStart(Launcher l, boolean animated, boolean toWorkspace) { 2354 } 2355 2356 @Override 2357 public void onLauncherTransitionStep(Launcher l, float t) { 2358 mTransitionProgress = t; 2359 } 2360 2361 @Override 2362 public void onLauncherTransitionEnd(Launcher l, boolean animated, boolean toWorkspace) { 2363 onTransitionEnd(); 2364 } 2365 2366 private void onTransitionPrepare() { 2367 mIsSwitchingState = true; 2368 2369 // Invalidate here to ensure that the pages are rendered during the state change transition. 2370 invalidate(); 2371 2372 updateChildrenLayersEnabled(false); 2373 hideCustomContentIfNecessary(); 2374 } 2375 2376 void updateCustomContentVisibility() { 2377 int visibility = mState == Workspace.State.NORMAL ? VISIBLE : INVISIBLE; 2378 if (hasCustomContent()) { 2379 mWorkspaceScreens.get(CUSTOM_CONTENT_SCREEN_ID).setVisibility(visibility); 2380 } 2381 } 2382 2383 void showCustomContentIfNecessary() { 2384 boolean show = mState == Workspace.State.NORMAL; 2385 if (show && hasCustomContent()) { 2386 mWorkspaceScreens.get(CUSTOM_CONTENT_SCREEN_ID).setVisibility(VISIBLE); 2387 } 2388 } 2389 2390 void hideCustomContentIfNecessary() { 2391 boolean hide = mState != Workspace.State.NORMAL; 2392 if (hide && hasCustomContent()) { 2393 disableLayoutTransitions(); 2394 mWorkspaceScreens.get(CUSTOM_CONTENT_SCREEN_ID).setVisibility(INVISIBLE); 2395 enableLayoutTransitions(); 2396 } 2397 } 2398 2399 private void onTransitionEnd() { 2400 mIsSwitchingState = false; 2401 updateChildrenLayersEnabled(false); 2402 // The code in getChangeStateAnimation to determine initialAlpha and finalAlpha will ensure 2403 // ensure that only the current page is visible during (and subsequently, after) the 2404 // transition animation. If fade adjacent pages is disabled, then re-enable the page 2405 // visibility after the transition animation. 2406 if (!mWorkspaceFadeInAdjacentScreens) { 2407 for (int i = 0; i < getChildCount(); i++) { 2408 final CellLayout cl = (CellLayout) getChildAt(i); 2409 cl.setShortcutAndWidgetAlpha(1f); 2410 } 2411 } else { 2412 for (int i = 0; i < numCustomPages(); i++) { 2413 final CellLayout cl = (CellLayout) getChildAt(i); 2414 cl.setShortcutAndWidgetAlpha(1f); 2415 } 2416 } 2417 showCustomContentIfNecessary(); 2418 } 2419 2420 @Override 2421 public View getContent() { 2422 return this; 2423 } 2424 2425 /** 2426 * Draw the View v into the given Canvas. 2427 * 2428 * @param v the view to draw 2429 * @param destCanvas the canvas to draw on 2430 * @param padding the horizontal and vertical padding to use when drawing 2431 */ 2432 private void drawDragView(View v, Canvas destCanvas, int padding, boolean pruneToDrawable) { 2433 final Rect clipRect = mTempRect; 2434 v.getDrawingRect(clipRect); 2435 2436 boolean textVisible = false; 2437 2438 destCanvas.save(); 2439 if (v instanceof TextView && pruneToDrawable) { 2440 Drawable d = ((TextView) v).getCompoundDrawables()[1]; 2441 clipRect.set(0, 0, d.getIntrinsicWidth() + padding, d.getIntrinsicHeight() + padding); 2442 destCanvas.translate(padding / 2, padding / 2); 2443 d.draw(destCanvas); 2444 } else { 2445 if (v instanceof FolderIcon) { 2446 // For FolderIcons the text can bleed into the icon area, and so we need to 2447 // hide the text completely (which can't be achieved by clipping). 2448 if (((FolderIcon) v).getTextVisible()) { 2449 ((FolderIcon) v).setTextVisible(false); 2450 textVisible = true; 2451 } 2452 } else if (v instanceof BubbleTextView) { 2453 final BubbleTextView tv = (BubbleTextView) v; 2454 clipRect.bottom = tv.getExtendedPaddingTop() - (int) BubbleTextView.PADDING_V + 2455 tv.getLayout().getLineTop(0); 2456 } else if (v instanceof TextView) { 2457 final TextView tv = (TextView) v; 2458 clipRect.bottom = tv.getExtendedPaddingTop() - tv.getCompoundDrawablePadding() + 2459 tv.getLayout().getLineTop(0); 2460 } 2461 destCanvas.translate(-v.getScrollX() + padding / 2, -v.getScrollY() + padding / 2); 2462 destCanvas.clipRect(clipRect, Op.REPLACE); 2463 v.draw(destCanvas); 2464 2465 // Restore text visibility of FolderIcon if necessary 2466 if (textVisible) { 2467 ((FolderIcon) v).setTextVisible(true); 2468 } 2469 } 2470 destCanvas.restore(); 2471 } 2472 2473 /** 2474 * Returns a new bitmap to show when the given View is being dragged around. 2475 * Responsibility for the bitmap is transferred to the caller. 2476 */ 2477 public Bitmap createDragBitmap(View v, Canvas canvas, int padding) { 2478 Bitmap b; 2479 2480 if (v instanceof TextView) { 2481 Drawable d = ((TextView) v).getCompoundDrawables()[1]; 2482 b = Bitmap.createBitmap(d.getIntrinsicWidth() + padding, 2483 d.getIntrinsicHeight() + padding, Bitmap.Config.ARGB_8888); 2484 } else { 2485 b = Bitmap.createBitmap( 2486 v.getWidth() + padding, v.getHeight() + padding, Bitmap.Config.ARGB_8888); 2487 } 2488 2489 canvas.setBitmap(b); 2490 drawDragView(v, canvas, padding, true); 2491 canvas.setBitmap(null); 2492 2493 return b; 2494 } 2495 2496 /** 2497 * Returns a new bitmap to be used as the object outline, e.g. to visualize the drop location. 2498 * Responsibility for the bitmap is transferred to the caller. 2499 */ 2500 private Bitmap createDragOutline(View v, Canvas canvas, int padding) { 2501 final int outlineColor = getResources().getColor(R.color.outline_color); 2502 final Bitmap b = Bitmap.createBitmap( 2503 v.getWidth() + padding, v.getHeight() + padding, Bitmap.Config.ARGB_8888); 2504 2505 canvas.setBitmap(b); 2506 drawDragView(v, canvas, padding, true); 2507 mOutlineHelper.applyMediumExpensiveOutlineWithBlur(b, canvas, outlineColor, outlineColor); 2508 canvas.setBitmap(null); 2509 return b; 2510 } 2511 2512 /** 2513 * Returns a new bitmap to be used as the object outline, e.g. to visualize the drop location. 2514 * Responsibility for the bitmap is transferred to the caller. 2515 */ 2516 private Bitmap createDragOutline(Bitmap orig, Canvas canvas, int padding, int w, int h, 2517 boolean clipAlpha) { 2518 final int outlineColor = getResources().getColor(R.color.outline_color); 2519 final Bitmap b = Bitmap.createBitmap(w, h, Bitmap.Config.ARGB_8888); 2520 canvas.setBitmap(b); 2521 2522 Rect src = new Rect(0, 0, orig.getWidth(), orig.getHeight()); 2523 float scaleFactor = Math.min((w - padding) / (float) orig.getWidth(), 2524 (h - padding) / (float) orig.getHeight()); 2525 int scaledWidth = (int) (scaleFactor * orig.getWidth()); 2526 int scaledHeight = (int) (scaleFactor * orig.getHeight()); 2527 Rect dst = new Rect(0, 0, scaledWidth, scaledHeight); 2528 2529 // center the image 2530 dst.offset((w - scaledWidth) / 2, (h - scaledHeight) / 2); 2531 2532 canvas.drawBitmap(orig, src, dst, null); 2533 mOutlineHelper.applyMediumExpensiveOutlineWithBlur(b, canvas, outlineColor, outlineColor, 2534 clipAlpha); 2535 canvas.setBitmap(null); 2536 2537 return b; 2538 } 2539 2540 void startDrag(CellLayout.CellInfo cellInfo) { 2541 View child = cellInfo.cell; 2542 2543 // Make sure the drag was started by a long press as opposed to a long click. 2544 if (!child.isInTouchMode()) { 2545 return; 2546 } 2547 2548 mDragInfo = cellInfo; 2549 child.setVisibility(INVISIBLE); 2550 CellLayout layout = (CellLayout) child.getParent().getParent(); 2551 layout.prepareChildForDrag(child); 2552 2553 child.clearFocus(); 2554 child.setPressed(false); 2555 2556 final Canvas canvas = new Canvas(); 2557 2558 // The outline is used to visualize where the item will land if dropped 2559 mDragOutline = createDragOutline(child, canvas, DRAG_BITMAP_PADDING); 2560 beginDragShared(child, this); 2561 } 2562 2563 public void beginDragShared(View child, DragSource source) { 2564 // The drag bitmap follows the touch point around on the screen 2565 final Bitmap b = createDragBitmap(child, new Canvas(), DRAG_BITMAP_PADDING); 2566 2567 final int bmpWidth = b.getWidth(); 2568 final int bmpHeight = b.getHeight(); 2569 2570 float scale = mLauncher.getDragLayer().getLocationInDragLayer(child, mTempXY); 2571 int dragLayerX = 2572 Math.round(mTempXY[0] - (bmpWidth - scale * child.getWidth()) / 2); 2573 int dragLayerY = 2574 Math.round(mTempXY[1] - (bmpHeight - scale * bmpHeight) / 2 2575 - DRAG_BITMAP_PADDING / 2); 2576 2577 LauncherAppState app = LauncherAppState.getInstance(); 2578 DeviceProfile grid = app.getDynamicGrid().getDeviceProfile(); 2579 Point dragVisualizeOffset = null; 2580 Rect dragRect = null; 2581 if (child instanceof BubbleTextView || child instanceof PagedViewIcon) { 2582 int iconSize = grid.iconSizePx; 2583 int top = child.getPaddingTop(); 2584 int left = (bmpWidth - iconSize) / 2; 2585 int right = left + iconSize; 2586 int bottom = top + iconSize; 2587 dragLayerY += top; 2588 // Note: The drag region is used to calculate drag layer offsets, but the 2589 // dragVisualizeOffset in addition to the dragRect (the size) to position the outline. 2590 dragVisualizeOffset = new Point(-DRAG_BITMAP_PADDING / 2, DRAG_BITMAP_PADDING / 2); 2591 dragRect = new Rect(left, top, right, bottom); 2592 } else if (child instanceof FolderIcon) { 2593 int previewSize = grid.folderIconSizePx; 2594 dragRect = new Rect(0, child.getPaddingTop(), child.getWidth(), previewSize); 2595 } 2596 2597 // Clear the pressed state if necessary 2598 if (child instanceof BubbleTextView) { 2599 BubbleTextView icon = (BubbleTextView) child; 2600 icon.clearPressedOrFocusedBackground(); 2601 } 2602 2603 if (child.getTag() == null || !(child.getTag() instanceof ItemInfo)) { 2604 String msg = "Drag started with a view that has no tag set. This " 2605 + "will cause a crash (issue 11627249) down the line. " 2606 + "View: " + child + " tag: " + child.getTag(); 2607 throw new IllegalStateException(msg); 2608 } 2609 2610 DragView dv = mDragController.startDrag(b, dragLayerX, dragLayerY, source, child.getTag(), 2611 DragController.DRAG_ACTION_MOVE, dragVisualizeOffset, dragRect, scale); 2612 dv.setIntrinsicIconScaleFactor(source.getIntrinsicIconScaleFactor()); 2613 2614 if (child.getParent() instanceof ShortcutAndWidgetContainer) { 2615 mDragSourceInternal = (ShortcutAndWidgetContainer) child.getParent(); 2616 } 2617 2618 b.recycle(); 2619 } 2620 2621 void addApplicationShortcut(ShortcutInfo info, CellLayout target, long container, long screenId, 2622 int cellX, int cellY, boolean insertAtFirst, int intersectX, int intersectY) { 2623 View view = mLauncher.createShortcut(R.layout.application, target, (ShortcutInfo) info); 2624 2625 final int[] cellXY = new int[2]; 2626 target.findCellForSpanThatIntersects(cellXY, 1, 1, intersectX, intersectY); 2627 addInScreen(view, container, screenId, cellXY[0], cellXY[1], 1, 1, insertAtFirst); 2628 2629 LauncherModel.addOrMoveItemInDatabase(mLauncher, info, container, screenId, cellXY[0], 2630 cellXY[1]); 2631 } 2632 2633 public boolean transitionStateShouldAllowDrop() { 2634 return ((!isSwitchingState() || mTransitionProgress > 0.5f) && mState != State.SMALL); 2635 } 2636 2637 /** 2638 * {@inheritDoc} 2639 */ 2640 public boolean acceptDrop(DragObject d) { 2641 // If it's an external drop (e.g. from All Apps), check if it should be accepted 2642 CellLayout dropTargetLayout = mDropToLayout; 2643 if (d.dragSource != this) { 2644 // Don't accept the drop if we're not over a screen at time of drop 2645 if (dropTargetLayout == null) { 2646 return false; 2647 } 2648 if (!transitionStateShouldAllowDrop()) return false; 2649 2650 mDragViewVisualCenter = getDragViewVisualCenter(d.x, d.y, d.xOffset, d.yOffset, 2651 d.dragView, mDragViewVisualCenter); 2652 2653 // We want the point to be mapped to the dragTarget. 2654 if (mLauncher.isHotseatLayout(dropTargetLayout)) { 2655 mapPointFromSelfToHotseatLayout(mLauncher.getHotseat(), mDragViewVisualCenter); 2656 } else { 2657 mapPointFromSelfToChild(dropTargetLayout, mDragViewVisualCenter, null); 2658 } 2659 2660 int spanX = 1; 2661 int spanY = 1; 2662 if (mDragInfo != null) { 2663 final CellLayout.CellInfo dragCellInfo = mDragInfo; 2664 spanX = dragCellInfo.spanX; 2665 spanY = dragCellInfo.spanY; 2666 } else { 2667 final ItemInfo dragInfo = (ItemInfo) d.dragInfo; 2668 spanX = dragInfo.spanX; 2669 spanY = dragInfo.spanY; 2670 } 2671 2672 int minSpanX = spanX; 2673 int minSpanY = spanY; 2674 if (d.dragInfo instanceof PendingAddWidgetInfo) { 2675 minSpanX = ((PendingAddWidgetInfo) d.dragInfo).minSpanX; 2676 minSpanY = ((PendingAddWidgetInfo) d.dragInfo).minSpanY; 2677 } 2678 2679 mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], 2680 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, dropTargetLayout, 2681 mTargetCell); 2682 float distance = dropTargetLayout.getDistanceFromCell(mDragViewVisualCenter[0], 2683 mDragViewVisualCenter[1], mTargetCell); 2684 if (willCreateUserFolder((ItemInfo) d.dragInfo, dropTargetLayout, 2685 mTargetCell, distance, true)) { 2686 return true; 2687 } 2688 if (willAddToExistingUserFolder((ItemInfo) d.dragInfo, dropTargetLayout, 2689 mTargetCell, distance)) { 2690 return true; 2691 } 2692 2693 int[] resultSpan = new int[2]; 2694 mTargetCell = dropTargetLayout.createArea((int) mDragViewVisualCenter[0], 2695 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, spanX, spanY, 2696 null, mTargetCell, resultSpan, CellLayout.MODE_ACCEPT_DROP); 2697 boolean foundCell = mTargetCell[0] >= 0 && mTargetCell[1] >= 0; 2698 2699 // Don't accept the drop if there's no room for the item 2700 if (!foundCell) { 2701 // Don't show the message if we are dropping on the AllApps button and the hotseat 2702 // is full 2703 boolean isHotseat = mLauncher.isHotseatLayout(dropTargetLayout); 2704 if (mTargetCell != null && isHotseat) { 2705 Hotseat hotseat = mLauncher.getHotseat(); 2706 if (hotseat.isAllAppsButtonRank( 2707 hotseat.getOrderInHotseat(mTargetCell[0], mTargetCell[1]))) { 2708 return false; 2709 } 2710 } 2711 2712 mLauncher.showOutOfSpaceMessage(isHotseat); 2713 return false; 2714 } 2715 } 2716 2717 long screenId = getIdForScreen(dropTargetLayout); 2718 if (screenId == EXTRA_EMPTY_SCREEN_ID) { 2719 commitExtraEmptyScreen(); 2720 } 2721 2722 return true; 2723 } 2724 2725 boolean willCreateUserFolder(ItemInfo info, CellLayout target, int[] targetCell, float 2726 distance, boolean considerTimeout) { 2727 if (distance > mMaxDistanceForFolderCreation) return false; 2728 View dropOverView = target.getChildAt(targetCell[0], targetCell[1]); 2729 2730 if (dropOverView != null) { 2731 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) dropOverView.getLayoutParams(); 2732 if (lp.useTmpCoords && (lp.tmpCellX != lp.cellX || lp.tmpCellY != lp.tmpCellY)) { 2733 return false; 2734 } 2735 } 2736 2737 boolean hasntMoved = false; 2738 if (mDragInfo != null) { 2739 hasntMoved = dropOverView == mDragInfo.cell; 2740 } 2741 2742 if (dropOverView == null || hasntMoved || (considerTimeout && !mCreateUserFolderOnDrop)) { 2743 return false; 2744 } 2745 2746 boolean aboveShortcut = (dropOverView.getTag() instanceof ShortcutInfo); 2747 boolean willBecomeShortcut = 2748 (info.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPLICATION || 2749 info.itemType == LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT); 2750 2751 return (aboveShortcut && willBecomeShortcut); 2752 } 2753 2754 boolean willAddToExistingUserFolder(Object dragInfo, CellLayout target, int[] targetCell, 2755 float distance) { 2756 if (distance > mMaxDistanceForFolderCreation) return false; 2757 View dropOverView = target.getChildAt(targetCell[0], targetCell[1]); 2758 2759 if (dropOverView != null) { 2760 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) dropOverView.getLayoutParams(); 2761 if (lp.useTmpCoords && (lp.tmpCellX != lp.cellX || lp.tmpCellY != lp.tmpCellY)) { 2762 return false; 2763 } 2764 } 2765 2766 if (dropOverView instanceof FolderIcon) { 2767 FolderIcon fi = (FolderIcon) dropOverView; 2768 if (fi.acceptDrop(dragInfo)) { 2769 return true; 2770 } 2771 } 2772 return false; 2773 } 2774 2775 boolean createUserFolderIfNecessary(View newView, long container, CellLayout target, 2776 int[] targetCell, float distance, boolean external, DragView dragView, 2777 Runnable postAnimationRunnable) { 2778 if (distance > mMaxDistanceForFolderCreation) return false; 2779 View v = target.getChildAt(targetCell[0], targetCell[1]); 2780 2781 boolean hasntMoved = false; 2782 if (mDragInfo != null) { 2783 CellLayout cellParent = getParentCellLayoutForView(mDragInfo.cell); 2784 hasntMoved = (mDragInfo.cellX == targetCell[0] && 2785 mDragInfo.cellY == targetCell[1]) && (cellParent == target); 2786 } 2787 2788 if (v == null || hasntMoved || !mCreateUserFolderOnDrop) return false; 2789 mCreateUserFolderOnDrop = false; 2790 final long screenId = (targetCell == null) ? mDragInfo.screenId : getIdForScreen(target); 2791 2792 boolean aboveShortcut = (v.getTag() instanceof ShortcutInfo); 2793 boolean willBecomeShortcut = (newView.getTag() instanceof ShortcutInfo); 2794 2795 if (aboveShortcut && willBecomeShortcut) { 2796 ShortcutInfo sourceInfo = (ShortcutInfo) newView.getTag(); 2797 ShortcutInfo destInfo = (ShortcutInfo) v.getTag(); 2798 // if the drag started here, we need to remove it from the workspace 2799 if (!external) { 2800 getParentCellLayoutForView(mDragInfo.cell).removeView(mDragInfo.cell); 2801 } 2802 2803 Rect folderLocation = new Rect(); 2804 float scale = mLauncher.getDragLayer().getDescendantRectRelativeToSelf(v, folderLocation); 2805 target.removeView(v); 2806 2807 FolderIcon fi = 2808 mLauncher.addFolder(target, container, screenId, targetCell[0], targetCell[1]); 2809 destInfo.cellX = -1; 2810 destInfo.cellY = -1; 2811 sourceInfo.cellX = -1; 2812 sourceInfo.cellY = -1; 2813 2814 // If the dragView is null, we can't animate 2815 boolean animate = dragView != null; 2816 if (animate) { 2817 fi.performCreateAnimation(destInfo, v, sourceInfo, dragView, folderLocation, scale, 2818 postAnimationRunnable); 2819 } else { 2820 fi.addItem(destInfo); 2821 fi.addItem(sourceInfo); 2822 } 2823 return true; 2824 } 2825 return false; 2826 } 2827 2828 boolean addToExistingFolderIfNecessary(View newView, CellLayout target, int[] targetCell, 2829 float distance, DragObject d, boolean external) { 2830 if (distance > mMaxDistanceForFolderCreation) return false; 2831 2832 View dropOverView = target.getChildAt(targetCell[0], targetCell[1]); 2833 if (!mAddToExistingFolderOnDrop) return false; 2834 mAddToExistingFolderOnDrop = false; 2835 2836 if (dropOverView instanceof FolderIcon) { 2837 FolderIcon fi = (FolderIcon) dropOverView; 2838 if (fi.acceptDrop(d.dragInfo)) { 2839 fi.onDrop(d); 2840 2841 // if the drag started here, we need to remove it from the workspace 2842 if (!external) { 2843 getParentCellLayoutForView(mDragInfo.cell).removeView(mDragInfo.cell); 2844 } 2845 return true; 2846 } 2847 } 2848 return false; 2849 } 2850 2851 public void onDrop(final DragObject d) { 2852 mDragViewVisualCenter = getDragViewVisualCenter(d.x, d.y, d.xOffset, d.yOffset, d.dragView, 2853 mDragViewVisualCenter); 2854 2855 CellLayout dropTargetLayout = mDropToLayout; 2856 2857 // We want the point to be mapped to the dragTarget. 2858 if (dropTargetLayout != null) { 2859 if (mLauncher.isHotseatLayout(dropTargetLayout)) { 2860 mapPointFromSelfToHotseatLayout(mLauncher.getHotseat(), mDragViewVisualCenter); 2861 } else { 2862 mapPointFromSelfToChild(dropTargetLayout, mDragViewVisualCenter, null); 2863 } 2864 } 2865 2866 int snapScreen = -1; 2867 boolean resizeOnDrop = false; 2868 if (d.dragSource != this) { 2869 final int[] touchXY = new int[] { (int) mDragViewVisualCenter[0], 2870 (int) mDragViewVisualCenter[1] }; 2871 onDropExternal(touchXY, d.dragInfo, dropTargetLayout, false, d); 2872 } else if (mDragInfo != null) { 2873 final View cell = mDragInfo.cell; 2874 2875 Runnable resizeRunnable = null; 2876 if (dropTargetLayout != null && !d.cancelled) { 2877 // Move internally 2878 boolean hasMovedLayouts = (getParentCellLayoutForView(cell) != dropTargetLayout); 2879 boolean hasMovedIntoHotseat = mLauncher.isHotseatLayout(dropTargetLayout); 2880 long container = hasMovedIntoHotseat ? 2881 LauncherSettings.Favorites.CONTAINER_HOTSEAT : 2882 LauncherSettings.Favorites.CONTAINER_DESKTOP; 2883 long screenId = (mTargetCell[0] < 0) ? 2884 mDragInfo.screenId : getIdForScreen(dropTargetLayout); 2885 int spanX = mDragInfo != null ? mDragInfo.spanX : 1; 2886 int spanY = mDragInfo != null ? mDragInfo.spanY : 1; 2887 // First we find the cell nearest to point at which the item is 2888 // dropped, without any consideration to whether there is an item there. 2889 2890 mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], (int) 2891 mDragViewVisualCenter[1], spanX, spanY, dropTargetLayout, mTargetCell); 2892 float distance = dropTargetLayout.getDistanceFromCell(mDragViewVisualCenter[0], 2893 mDragViewVisualCenter[1], mTargetCell); 2894 2895 // If the item being dropped is a shortcut and the nearest drop 2896 // cell also contains a shortcut, then create a folder with the two shortcuts. 2897 if (!mInScrollArea && createUserFolderIfNecessary(cell, container, 2898 dropTargetLayout, mTargetCell, distance, false, d.dragView, null)) { 2899 removeExtraEmptyScreen(true, null, 0, true); 2900 return; 2901 } 2902 2903 if (addToExistingFolderIfNecessary(cell, dropTargetLayout, mTargetCell, 2904 distance, d, false)) { 2905 removeExtraEmptyScreen(true, null, 0, true); 2906 return; 2907 } 2908 2909 // Aside from the special case where we're dropping a shortcut onto a shortcut, 2910 // we need to find the nearest cell location that is vacant 2911 ItemInfo item = (ItemInfo) d.dragInfo; 2912 int minSpanX = item.spanX; 2913 int minSpanY = item.spanY; 2914 if (item.minSpanX > 0 && item.minSpanY > 0) { 2915 minSpanX = item.minSpanX; 2916 minSpanY = item.minSpanY; 2917 } 2918 2919 int[] resultSpan = new int[2]; 2920 mTargetCell = dropTargetLayout.createArea((int) mDragViewVisualCenter[0], 2921 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, spanX, spanY, cell, 2922 mTargetCell, resultSpan, CellLayout.MODE_ON_DROP); 2923 2924 boolean foundCell = mTargetCell[0] >= 0 && mTargetCell[1] >= 0; 2925 2926 // if the widget resizes on drop 2927 if (foundCell && (cell instanceof AppWidgetHostView) && 2928 (resultSpan[0] != item.spanX || resultSpan[1] != item.spanY)) { 2929 resizeOnDrop = true; 2930 item.spanX = resultSpan[0]; 2931 item.spanY = resultSpan[1]; 2932 AppWidgetHostView awhv = (AppWidgetHostView) cell; 2933 AppWidgetResizeFrame.updateWidgetSizeRanges(awhv, mLauncher, resultSpan[0], 2934 resultSpan[1]); 2935 } 2936 2937 if (getScreenIdForPageIndex(mCurrentPage) != screenId && !hasMovedIntoHotseat) { 2938 snapScreen = getPageIndexForScreenId(screenId); 2939 snapToPage(snapScreen); 2940 } 2941 2942 if (foundCell) { 2943 final ItemInfo info = (ItemInfo) cell.getTag(); 2944 if (hasMovedLayouts) { 2945 // Reparent the view 2946 getParentCellLayoutForView(cell).removeView(cell); 2947 addInScreen(cell, container, screenId, mTargetCell[0], mTargetCell[1], 2948 info.spanX, info.spanY); 2949 } 2950 2951 // update the item's position after drop 2952 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) cell.getLayoutParams(); 2953 lp.cellX = lp.tmpCellX = mTargetCell[0]; 2954 lp.cellY = lp.tmpCellY = mTargetCell[1]; 2955 lp.cellHSpan = item.spanX; 2956 lp.cellVSpan = item.spanY; 2957 lp.isLockedToGrid = true; 2958 2959 if (container != LauncherSettings.Favorites.CONTAINER_HOTSEAT && 2960 cell instanceof LauncherAppWidgetHostView) { 2961 final CellLayout cellLayout = dropTargetLayout; 2962 // We post this call so that the widget has a chance to be placed 2963 // in its final location 2964 2965 final LauncherAppWidgetHostView hostView = (LauncherAppWidgetHostView) cell; 2966 AppWidgetProviderInfo pinfo = hostView.getAppWidgetInfo(); 2967 if (pinfo != null && 2968 pinfo.resizeMode != AppWidgetProviderInfo.RESIZE_NONE) { 2969 final Runnable addResizeFrame = new Runnable() { 2970 public void run() { 2971 DragLayer dragLayer = mLauncher.getDragLayer(); 2972 dragLayer.addResizeFrame(info, hostView, cellLayout); 2973 } 2974 }; 2975 resizeRunnable = (new Runnable() { 2976 public void run() { 2977 if (!isPageMoving()) { 2978 addResizeFrame.run(); 2979 } else { 2980 mDelayedResizeRunnable = addResizeFrame; 2981 } 2982 } 2983 }); 2984 } 2985 } 2986 2987 LauncherModel.modifyItemInDatabase(mLauncher, info, container, screenId, lp.cellX, 2988 lp.cellY, item.spanX, item.spanY); 2989 } else { 2990 // If we can't find a drop location, we return the item to its original position 2991 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) cell.getLayoutParams(); 2992 mTargetCell[0] = lp.cellX; 2993 mTargetCell[1] = lp.cellY; 2994 CellLayout layout = (CellLayout) cell.getParent().getParent(); 2995 layout.markCellsAsOccupiedForView(cell); 2996 } 2997 } 2998 2999 final CellLayout parent = (CellLayout) cell.getParent().getParent(); 3000 final Runnable finalResizeRunnable = resizeRunnable; 3001 // Prepare it to be animated into its new position 3002 // This must be called after the view has been re-parented 3003 final Runnable onCompleteRunnable = new Runnable() { 3004 @Override 3005 public void run() { 3006 mAnimatingViewIntoPlace = false; 3007 updateChildrenLayersEnabled(false); 3008 if (finalResizeRunnable != null) { 3009 finalResizeRunnable.run(); 3010 } 3011 removeExtraEmptyScreen(true, null, 0, true); 3012 } 3013 }; 3014 mAnimatingViewIntoPlace = true; 3015 if (d.dragView.hasDrawn()) { 3016 final ItemInfo info = (ItemInfo) cell.getTag(); 3017 if (info.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET) { 3018 int animationType = resizeOnDrop ? ANIMATE_INTO_POSITION_AND_RESIZE : 3019 ANIMATE_INTO_POSITION_AND_DISAPPEAR; 3020 animateWidgetDrop(info, parent, d.dragView, 3021 onCompleteRunnable, animationType, cell, false); 3022 } else { 3023 int duration = snapScreen < 0 ? -1 : ADJACENT_SCREEN_DROP_DURATION; 3024 mLauncher.getDragLayer().animateViewIntoPosition(d.dragView, cell, duration, 3025 onCompleteRunnable, this); 3026 } 3027 } else { 3028 d.deferDragViewCleanupPostAnimation = false; 3029 cell.setVisibility(VISIBLE); 3030 } 3031 parent.onDropChild(cell); 3032 } 3033 } 3034 3035 public void setFinalScrollForPageChange(int pageIndex) { 3036 CellLayout cl = (CellLayout) getChildAt(pageIndex); 3037 if (cl != null) { 3038 mSavedScrollX = getScrollX(); 3039 mSavedTranslationX = cl.getTranslationX(); 3040 mSavedRotationY = cl.getRotationY(); 3041 final int newX = getScrollForPage(pageIndex); 3042 setScrollX(newX); 3043 cl.setTranslationX(0f); 3044 cl.setRotationY(0f); 3045 } 3046 } 3047 3048 public void resetFinalScrollForPageChange(int pageIndex) { 3049 if (pageIndex >= 0) { 3050 CellLayout cl = (CellLayout) getChildAt(pageIndex); 3051 setScrollX(mSavedScrollX); 3052 cl.setTranslationX(mSavedTranslationX); 3053 cl.setRotationY(mSavedRotationY); 3054 } 3055 } 3056 3057 public void getViewLocationRelativeToSelf(View v, int[] location) { 3058 getLocationInWindow(location); 3059 int x = location[0]; 3060 int y = location[1]; 3061 3062 v.getLocationInWindow(location); 3063 int vX = location[0]; 3064 int vY = location[1]; 3065 3066 location[0] = vX - x; 3067 location[1] = vY - y; 3068 } 3069 3070 public void onDragEnter(DragObject d) { 3071 mDragEnforcer.onDragEnter(); 3072 mCreateUserFolderOnDrop = false; 3073 mAddToExistingFolderOnDrop = false; 3074 3075 mDropToLayout = null; 3076 CellLayout layout = getCurrentDropLayout(); 3077 setCurrentDropLayout(layout); 3078 setCurrentDragOverlappingLayout(layout); 3079 3080 // Because we don't have space in the Phone UI (the CellLayouts run to the edge) we 3081 // don't need to show the outlines 3082 if (LauncherAppState.getInstance().isScreenLarge()) { 3083 showOutlines(); 3084 } 3085 } 3086 3087 /** Return a rect that has the cellWidth/cellHeight (left, top), and 3088 * widthGap/heightGap (right, bottom) */ 3089 static Rect getCellLayoutMetrics(Launcher launcher, int orientation) { 3090 LauncherAppState app = LauncherAppState.getInstance(); 3091 DeviceProfile grid = app.getDynamicGrid().getDeviceProfile(); 3092 3093 Resources res = launcher.getResources(); 3094 Display display = launcher.getWindowManager().getDefaultDisplay(); 3095 Point smallestSize = new Point(); 3096 Point largestSize = new Point(); 3097 display.getCurrentSizeRange(smallestSize, largestSize); 3098 int countX = (int) grid.numColumns; 3099 int countY = (int) grid.numRows; 3100 int constrainedLongEdge = largestSize.y; 3101 int constrainedShortEdge = smallestSize.y; 3102 if (orientation == CellLayout.LANDSCAPE) { 3103 if (mLandscapeCellLayoutMetrics == null) { 3104 Rect padding = grid.getWorkspacePadding(CellLayout.LANDSCAPE); 3105 int width = constrainedLongEdge - padding.left - padding.right; 3106 int height = constrainedShortEdge - padding.top - padding.bottom; 3107 mLandscapeCellLayoutMetrics = new Rect(); 3108 mLandscapeCellLayoutMetrics.set( 3109 grid.calculateCellWidth(width, countX), 3110 grid.calculateCellHeight(height, countY), 0, 0); 3111 } 3112 return mLandscapeCellLayoutMetrics; 3113 } else if (orientation == CellLayout.PORTRAIT) { 3114 if (mPortraitCellLayoutMetrics == null) { 3115 Rect padding = grid.getWorkspacePadding(CellLayout.PORTRAIT); 3116 int width = constrainedShortEdge - padding.left - padding.right; 3117 int height = constrainedLongEdge - padding.top - padding.bottom; 3118 mPortraitCellLayoutMetrics = new Rect(); 3119 mPortraitCellLayoutMetrics.set( 3120 grid.calculateCellWidth(width, countX), 3121 grid.calculateCellHeight(height, countY), 0, 0); 3122 } 3123 return mPortraitCellLayoutMetrics; 3124 } 3125 return null; 3126 } 3127 3128 public void onDragExit(DragObject d) { 3129 mDragEnforcer.onDragExit(); 3130 3131 // Here we store the final page that will be dropped to, if the workspace in fact 3132 // receives the drop 3133 if (mInScrollArea) { 3134 if (isPageMoving()) { 3135 // If the user drops while the page is scrolling, we should use that page as the 3136 // destination instead of the page that is being hovered over. 3137 mDropToLayout = (CellLayout) getPageAt(getNextPage()); 3138 } else { 3139 mDropToLayout = mDragOverlappingLayout; 3140 } 3141 } else { 3142 mDropToLayout = mDragTargetLayout; 3143 } 3144 3145 if (mDragMode == DRAG_MODE_CREATE_FOLDER) { 3146 mCreateUserFolderOnDrop = true; 3147 } else if (mDragMode == DRAG_MODE_ADD_TO_FOLDER) { 3148 mAddToExistingFolderOnDrop = true; 3149 } 3150 3151 // Reset the scroll area and previous drag target 3152 onResetScrollArea(); 3153 setCurrentDropLayout(null); 3154 setCurrentDragOverlappingLayout(null); 3155 3156 mSpringLoadedDragController.cancel(); 3157 3158 if (!mIsPageMoving) { 3159 hideOutlines(); 3160 } 3161 } 3162 3163 void setCurrentDropLayout(CellLayout layout) { 3164 if (mDragTargetLayout != null) { 3165 mDragTargetLayout.revertTempState(); 3166 mDragTargetLayout.onDragExit(); 3167 } 3168 mDragTargetLayout = layout; 3169 if (mDragTargetLayout != null) { 3170 mDragTargetLayout.onDragEnter(); 3171 } 3172 cleanupReorder(true); 3173 cleanupFolderCreation(); 3174 setCurrentDropOverCell(-1, -1); 3175 } 3176 3177 void setCurrentDragOverlappingLayout(CellLayout layout) { 3178 if (mDragOverlappingLayout != null) { 3179 mDragOverlappingLayout.setIsDragOverlapping(false); 3180 } 3181 mDragOverlappingLayout = layout; 3182 if (mDragOverlappingLayout != null) { 3183 mDragOverlappingLayout.setIsDragOverlapping(true); 3184 } 3185 invalidate(); 3186 } 3187 3188 void setCurrentDropOverCell(int x, int y) { 3189 if (x != mDragOverX || y != mDragOverY) { 3190 mDragOverX = x; 3191 mDragOverY = y; 3192 setDragMode(DRAG_MODE_NONE); 3193 } 3194 } 3195 3196 void setDragMode(int dragMode) { 3197 if (dragMode != mDragMode) { 3198 if (dragMode == DRAG_MODE_NONE) { 3199 cleanupAddToFolder(); 3200 // We don't want to cancel the re-order alarm every time the target cell changes 3201 // as this feels to slow / unresponsive. 3202 cleanupReorder(false); 3203 cleanupFolderCreation(); 3204 } else if (dragMode == DRAG_MODE_ADD_TO_FOLDER) { 3205 cleanupReorder(true); 3206 cleanupFolderCreation(); 3207 } else if (dragMode == DRAG_MODE_CREATE_FOLDER) { 3208 cleanupAddToFolder(); 3209 cleanupReorder(true); 3210 } else if (dragMode == DRAG_MODE_REORDER) { 3211 cleanupAddToFolder(); 3212 cleanupFolderCreation(); 3213 } 3214 mDragMode = dragMode; 3215 } 3216 } 3217 3218 private void cleanupFolderCreation() { 3219 if (mDragFolderRingAnimator != null) { 3220 mDragFolderRingAnimator.animateToNaturalState(); 3221 mDragFolderRingAnimator = null; 3222 } 3223 mFolderCreationAlarm.setOnAlarmListener(null); 3224 mFolderCreationAlarm.cancelAlarm(); 3225 } 3226 3227 private void cleanupAddToFolder() { 3228 if (mDragOverFolderIcon != null) { 3229 mDragOverFolderIcon.onDragExit(null); 3230 mDragOverFolderIcon = null; 3231 } 3232 } 3233 3234 private void cleanupReorder(boolean cancelAlarm) { 3235 // Any pending reorders are canceled 3236 if (cancelAlarm) { 3237 mReorderAlarm.cancelAlarm(); 3238 } 3239 mLastReorderX = -1; 3240 mLastReorderY = -1; 3241 } 3242 3243 /* 3244 * 3245 * Convert the 2D coordinate xy from the parent View's coordinate space to this CellLayout's 3246 * coordinate space. The argument xy is modified with the return result. 3247 * 3248 * if cachedInverseMatrix is not null, this method will just use that matrix instead of 3249 * computing it itself; we use this to avoid redundant matrix inversions in 3250 * findMatchingPageForDragOver 3251 * 3252 */ 3253 void mapPointFromSelfToChild(View v, float[] xy, Matrix cachedInverseMatrix) { 3254 xy[0] = xy[0] - v.getLeft(); 3255 xy[1] = xy[1] - v.getTop(); 3256 } 3257 3258 boolean isPointInSelfOverHotseat(int x, int y, Rect r) { 3259 if (r == null) { 3260 r = new Rect(); 3261 } 3262 mTempPt[0] = x; 3263 mTempPt[1] = y; 3264 mLauncher.getDragLayer().getDescendantCoordRelativeToSelf(this, mTempPt, true); 3265 3266 LauncherAppState app = LauncherAppState.getInstance(); 3267 DeviceProfile grid = app.getDynamicGrid().getDeviceProfile(); 3268 r = grid.getHotseatRect(); 3269 if (r.contains(mTempPt[0], mTempPt[1])) { 3270 return true; 3271 } 3272 return false; 3273 } 3274 3275 void mapPointFromSelfToHotseatLayout(Hotseat hotseat, float[] xy) { 3276 mTempPt[0] = (int) xy[0]; 3277 mTempPt[1] = (int) xy[1]; 3278 mLauncher.getDragLayer().getDescendantCoordRelativeToSelf(this, mTempPt, true); 3279 mLauncher.getDragLayer().mapCoordInSelfToDescendent(hotseat.getLayout(), mTempPt); 3280 3281 xy[0] = mTempPt[0]; 3282 xy[1] = mTempPt[1]; 3283 } 3284 3285 /* 3286 * 3287 * Convert the 2D coordinate xy from this CellLayout's coordinate space to 3288 * the parent View's coordinate space. The argument xy is modified with the return result. 3289 * 3290 */ 3291 void mapPointFromChildToSelf(View v, float[] xy) { 3292 xy[0] += v.getLeft(); 3293 xy[1] += v.getTop(); 3294 } 3295 3296 static private float squaredDistance(float[] point1, float[] point2) { 3297 float distanceX = point1[0] - point2[0]; 3298 float distanceY = point2[1] - point2[1]; 3299 return distanceX * distanceX + distanceY * distanceY; 3300 } 3301 3302 /* 3303 * 3304 * This method returns the CellLayout that is currently being dragged to. In order to drag 3305 * to a CellLayout, either the touch point must be directly over the CellLayout, or as a second 3306 * strategy, we see if the dragView is overlapping any CellLayout and choose the closest one 3307 * 3308 * Return null if no CellLayout is currently being dragged over 3309 * 3310 */ 3311 private CellLayout findMatchingPageForDragOver( 3312 DragView dragView, float originX, float originY, boolean exact) { 3313 // We loop through all the screens (ie CellLayouts) and see which ones overlap 3314 // with the item being dragged and then choose the one that's closest to the touch point 3315 final int screenCount = getChildCount(); 3316 CellLayout bestMatchingScreen = null; 3317 float smallestDistSoFar = Float.MAX_VALUE; 3318 3319 for (int i = 0; i < screenCount; i++) { 3320 // The custom content screen is not a valid drag over option 3321 if (mScreenOrder.get(i) == CUSTOM_CONTENT_SCREEN_ID) { 3322 continue; 3323 } 3324 3325 CellLayout cl = (CellLayout) getChildAt(i); 3326 3327 final float[] touchXy = {originX, originY}; 3328 // Transform the touch coordinates to the CellLayout's local coordinates 3329 // If the touch point is within the bounds of the cell layout, we can return immediately 3330 cl.getMatrix().invert(mTempInverseMatrix); 3331 mapPointFromSelfToChild(cl, touchXy, mTempInverseMatrix); 3332 3333 if (touchXy[0] >= 0 && touchXy[0] <= cl.getWidth() && 3334 touchXy[1] >= 0 && touchXy[1] <= cl.getHeight()) { 3335 return cl; 3336 } 3337 3338 if (!exact) { 3339 // Get the center of the cell layout in screen coordinates 3340 final float[] cellLayoutCenter = mTempCellLayoutCenterCoordinates; 3341 cellLayoutCenter[0] = cl.getWidth()/2; 3342 cellLayoutCenter[1] = cl.getHeight()/2; 3343 mapPointFromChildToSelf(cl, cellLayoutCenter); 3344 3345 touchXy[0] = originX; 3346 touchXy[1] = originY; 3347 3348 // Calculate the distance between the center of the CellLayout 3349 // and the touch point 3350 float dist = squaredDistance(touchXy, cellLayoutCenter); 3351 3352 if (dist < smallestDistSoFar) { 3353 smallestDistSoFar = dist; 3354 bestMatchingScreen = cl; 3355 } 3356 } 3357 } 3358 return bestMatchingScreen; 3359 } 3360 3361 // This is used to compute the visual center of the dragView. This point is then 3362 // used to visualize drop locations and determine where to drop an item. The idea is that 3363 // the visual center represents the user's interpretation of where the item is, and hence 3364 // is the appropriate point to use when determining drop location. 3365 private float[] getDragViewVisualCenter(int x, int y, int xOffset, int yOffset, 3366 DragView dragView, float[] recycle) { 3367 float res[]; 3368 if (recycle == null) { 3369 res = new float[2]; 3370 } else { 3371 res = recycle; 3372 } 3373 3374 // First off, the drag view has been shifted in a way that is not represented in the 3375 // x and y values or the x/yOffsets. Here we account for that shift. 3376 x += getResources().getDimensionPixelSize(R.dimen.dragViewOffsetX); 3377 y += getResources().getDimensionPixelSize(R.dimen.dragViewOffsetY); 3378 3379 // These represent the visual top and left of drag view if a dragRect was provided. 3380 // If a dragRect was not provided, then they correspond to the actual view left and 3381 // top, as the dragRect is in that case taken to be the entire dragView. 3382 // R.dimen.dragViewOffsetY. 3383 int left = x - xOffset; 3384 int top = y - yOffset; 3385 3386 // In order to find the visual center, we shift by half the dragRect 3387 res[0] = left + dragView.getDragRegion().width() / 2; 3388 res[1] = top + dragView.getDragRegion().height() / 2; 3389 3390 return res; 3391 } 3392 3393 private boolean isDragWidget(DragObject d) { 3394 return (d.dragInfo instanceof LauncherAppWidgetInfo || 3395 d.dragInfo instanceof PendingAddWidgetInfo); 3396 } 3397 private boolean isExternalDragWidget(DragObject d) { 3398 return d.dragSource != this && isDragWidget(d); 3399 } 3400 3401 public void onDragOver(DragObject d) { 3402 // Skip drag over events while we are dragging over side pages 3403 if (mInScrollArea || mIsSwitchingState || mState == State.SMALL) return; 3404 3405 Rect r = new Rect(); 3406 CellLayout layout = null; 3407 ItemInfo item = (ItemInfo) d.dragInfo; 3408 3409 // Ensure that we have proper spans for the item that we are dropping 3410 if (item.spanX < 0 || item.spanY < 0) throw new RuntimeException("Improper spans found"); 3411 mDragViewVisualCenter = getDragViewVisualCenter(d.x, d.y, d.xOffset, d.yOffset, 3412 d.dragView, mDragViewVisualCenter); 3413 3414 final View child = (mDragInfo == null) ? null : mDragInfo.cell; 3415 // Identify whether we have dragged over a side page 3416 if (isSmall()) { 3417 if (mLauncher.getHotseat() != null && !isExternalDragWidget(d)) { 3418 if (isPointInSelfOverHotseat(d.x, d.y, r)) { 3419 layout = mLauncher.getHotseat().getLayout(); 3420 } 3421 } 3422 if (layout == null) { 3423 layout = findMatchingPageForDragOver(d.dragView, d.x, d.y, false); 3424 } 3425 if (layout != mDragTargetLayout) { 3426 setCurrentDropLayout(layout); 3427 setCurrentDragOverlappingLayout(layout); 3428 3429 boolean isInSpringLoadedMode = (mState == State.SPRING_LOADED); 3430 if (isInSpringLoadedMode) { 3431 if (mLauncher.isHotseatLayout(layout)) { 3432 mSpringLoadedDragController.cancel(); 3433 } else { 3434 mSpringLoadedDragController.setAlarm(mDragTargetLayout); 3435 } 3436 } 3437 } 3438 } else { 3439 // Test to see if we are over the hotseat otherwise just use the current page 3440 if (mLauncher.getHotseat() != null && !isDragWidget(d)) { 3441 if (isPointInSelfOverHotseat(d.x, d.y, r)) { 3442 layout = mLauncher.getHotseat().getLayout(); 3443 } 3444 } 3445 if (layout == null) { 3446 layout = getCurrentDropLayout(); 3447 } 3448 if (layout != mDragTargetLayout) { 3449 setCurrentDropLayout(layout); 3450 setCurrentDragOverlappingLayout(layout); 3451 } 3452 } 3453 3454 // Handle the drag over 3455 if (mDragTargetLayout != null) { 3456 // We want the point to be mapped to the dragTarget. 3457 if (mLauncher.isHotseatLayout(mDragTargetLayout)) { 3458 mapPointFromSelfToHotseatLayout(mLauncher.getHotseat(), mDragViewVisualCenter); 3459 } else { 3460 mapPointFromSelfToChild(mDragTargetLayout, mDragViewVisualCenter, null); 3461 } 3462 3463 ItemInfo info = (ItemInfo) d.dragInfo; 3464 3465 int minSpanX = item.spanX; 3466 int minSpanY = item.spanY; 3467 if (item.minSpanX > 0 && item.minSpanY > 0) { 3468 minSpanX = item.minSpanX; 3469 minSpanY = item.minSpanY; 3470 } 3471 3472 mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], 3473 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, 3474 mDragTargetLayout, mTargetCell); 3475 int reorderX = mTargetCell[0]; 3476 int reorderY = mTargetCell[1]; 3477 3478 setCurrentDropOverCell(mTargetCell[0], mTargetCell[1]); 3479 3480 float targetCellDistance = mDragTargetLayout.getDistanceFromCell( 3481 mDragViewVisualCenter[0], mDragViewVisualCenter[1], mTargetCell); 3482 3483 final View dragOverView = mDragTargetLayout.getChildAt(mTargetCell[0], 3484 mTargetCell[1]); 3485 3486 manageFolderFeedback(info, mDragTargetLayout, mTargetCell, 3487 targetCellDistance, dragOverView); 3488 3489 boolean nearestDropOccupied = mDragTargetLayout.isNearestDropLocationOccupied((int) 3490 mDragViewVisualCenter[0], (int) mDragViewVisualCenter[1], item.spanX, 3491 item.spanY, child, mTargetCell); 3492 3493 if (!nearestDropOccupied) { 3494 mDragTargetLayout.visualizeDropLocation(child, mDragOutline, 3495 (int) mDragViewVisualCenter[0], (int) mDragViewVisualCenter[1], 3496 mTargetCell[0], mTargetCell[1], item.spanX, item.spanY, false, 3497 d.dragView.getDragVisualizeOffset(), d.dragView.getDragRegion()); 3498 } else if ((mDragMode == DRAG_MODE_NONE || mDragMode == DRAG_MODE_REORDER) 3499 && !mReorderAlarm.alarmPending() && (mLastReorderX != reorderX || 3500 mLastReorderY != reorderY)) { 3501 3502 // Otherwise, if we aren't adding to or creating a folder and there's no pending 3503 // reorder, then we schedule a reorder 3504 ReorderAlarmListener listener = new ReorderAlarmListener(mDragViewVisualCenter, 3505 minSpanX, minSpanY, item.spanX, item.spanY, d.dragView, child); 3506 mReorderAlarm.setOnAlarmListener(listener); 3507 mReorderAlarm.setAlarm(REORDER_TIMEOUT); 3508 } 3509 3510 if (mDragMode == DRAG_MODE_CREATE_FOLDER || mDragMode == DRAG_MODE_ADD_TO_FOLDER || 3511 !nearestDropOccupied) { 3512 if (mDragTargetLayout != null) { 3513 mDragTargetLayout.revertTempState(); 3514 } 3515 } 3516 } 3517 } 3518 3519 private void manageFolderFeedback(ItemInfo info, CellLayout targetLayout, 3520 int[] targetCell, float distance, View dragOverView) { 3521 boolean userFolderPending = willCreateUserFolder(info, targetLayout, targetCell, distance, 3522 false); 3523 3524 if (mDragMode == DRAG_MODE_NONE && userFolderPending && 3525 !mFolderCreationAlarm.alarmPending()) { 3526 mFolderCreationAlarm.setOnAlarmListener(new 3527 FolderCreationAlarmListener(targetLayout, targetCell[0], targetCell[1])); 3528 mFolderCreationAlarm.setAlarm(FOLDER_CREATION_TIMEOUT); 3529 return; 3530 } 3531 3532 boolean willAddToFolder = 3533 willAddToExistingUserFolder(info, targetLayout, targetCell, distance); 3534 3535 if (willAddToFolder && mDragMode == DRAG_MODE_NONE) { 3536 mDragOverFolderIcon = ((FolderIcon) dragOverView); 3537 mDragOverFolderIcon.onDragEnter(info); 3538 if (targetLayout != null) { 3539 targetLayout.clearDragOutlines(); 3540 } 3541 setDragMode(DRAG_MODE_ADD_TO_FOLDER); 3542 return; 3543 } 3544 3545 if (mDragMode == DRAG_MODE_ADD_TO_FOLDER && !willAddToFolder) { 3546 setDragMode(DRAG_MODE_NONE); 3547 } 3548 if (mDragMode == DRAG_MODE_CREATE_FOLDER && !userFolderPending) { 3549 setDragMode(DRAG_MODE_NONE); 3550 } 3551 3552 return; 3553 } 3554 3555 class FolderCreationAlarmListener implements OnAlarmListener { 3556 CellLayout layout; 3557 int cellX; 3558 int cellY; 3559 3560 public FolderCreationAlarmListener(CellLayout layout, int cellX, int cellY) { 3561 this.layout = layout; 3562 this.cellX = cellX; 3563 this.cellY = cellY; 3564 } 3565 3566 public void onAlarm(Alarm alarm) { 3567 if (mDragFolderRingAnimator != null) { 3568 // This shouldn't happen ever, but just in case, make sure we clean up the mess. 3569 mDragFolderRingAnimator.animateToNaturalState(); 3570 } 3571 mDragFolderRingAnimator = new FolderRingAnimator(mLauncher, null); 3572 mDragFolderRingAnimator.setCell(cellX, cellY); 3573 mDragFolderRingAnimator.setCellLayout(layout); 3574 mDragFolderRingAnimator.animateToAcceptState(); 3575 layout.showFolderAccept(mDragFolderRingAnimator); 3576 layout.clearDragOutlines(); 3577 setDragMode(DRAG_MODE_CREATE_FOLDER); 3578 } 3579 } 3580 3581 class ReorderAlarmListener implements OnAlarmListener { 3582 float[] dragViewCenter; 3583 int minSpanX, minSpanY, spanX, spanY; 3584 DragView dragView; 3585 View child; 3586 3587 public ReorderAlarmListener(float[] dragViewCenter, int minSpanX, int minSpanY, int spanX, 3588 int spanY, DragView dragView, View child) { 3589 this.dragViewCenter = dragViewCenter; 3590 this.minSpanX = minSpanX; 3591 this.minSpanY = minSpanY; 3592 this.spanX = spanX; 3593 this.spanY = spanY; 3594 this.child = child; 3595 this.dragView = dragView; 3596 } 3597 3598 public void onAlarm(Alarm alarm) { 3599 int[] resultSpan = new int[2]; 3600 mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], 3601 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, mDragTargetLayout, 3602 mTargetCell); 3603 mLastReorderX = mTargetCell[0]; 3604 mLastReorderY = mTargetCell[1]; 3605 3606 mTargetCell = mDragTargetLayout.createArea((int) mDragViewVisualCenter[0], 3607 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, spanX, spanY, 3608 child, mTargetCell, resultSpan, CellLayout.MODE_DRAG_OVER); 3609 3610 if (mTargetCell[0] < 0 || mTargetCell[1] < 0) { 3611 mDragTargetLayout.revertTempState(); 3612 } else { 3613 setDragMode(DRAG_MODE_REORDER); 3614 } 3615 3616 boolean resize = resultSpan[0] != spanX || resultSpan[1] != spanY; 3617 mDragTargetLayout.visualizeDropLocation(child, mDragOutline, 3618 (int) mDragViewVisualCenter[0], (int) mDragViewVisualCenter[1], 3619 mTargetCell[0], mTargetCell[1], resultSpan[0], resultSpan[1], resize, 3620 dragView.getDragVisualizeOffset(), dragView.getDragRegion()); 3621 } 3622 } 3623 3624 @Override 3625 public void getHitRectRelativeToDragLayer(Rect outRect) { 3626 // We want the workspace to have the whole area of the display (it will find the correct 3627 // cell layout to drop to in the existing drag/drop logic. 3628 mLauncher.getDragLayer().getDescendantRectRelativeToSelf(this, outRect); 3629 } 3630 3631 /** 3632 * Add the item specified by dragInfo to the given layout. 3633 * @return true if successful 3634 */ 3635 public boolean addExternalItemToScreen(ItemInfo dragInfo, CellLayout layout) { 3636 if (layout.findCellForSpan(mTempEstimate, dragInfo.spanX, dragInfo.spanY)) { 3637 onDropExternal(dragInfo.dropPos, (ItemInfo) dragInfo, (CellLayout) layout, false); 3638 return true; 3639 } 3640 mLauncher.showOutOfSpaceMessage(mLauncher.isHotseatLayout(layout)); 3641 return false; 3642 } 3643 3644 private void onDropExternal(int[] touchXY, Object dragInfo, 3645 CellLayout cellLayout, boolean insertAtFirst) { 3646 onDropExternal(touchXY, dragInfo, cellLayout, insertAtFirst, null); 3647 } 3648 3649 /** 3650 * Drop an item that didn't originate on one of the workspace screens. 3651 * It may have come from Launcher (e.g. from all apps or customize), or it may have 3652 * come from another app altogether. 3653 * 3654 * NOTE: This can also be called when we are outside of a drag event, when we want 3655 * to add an item to one of the workspace screens. 3656 */ 3657 private void onDropExternal(final int[] touchXY, final Object dragInfo, 3658 final CellLayout cellLayout, boolean insertAtFirst, DragObject d) { 3659 final Runnable exitSpringLoadedRunnable = new Runnable() { 3660 @Override 3661 public void run() { 3662 removeExtraEmptyScreen(false, new Runnable() { 3663 @Override 3664 public void run() { 3665 mLauncher.exitSpringLoadedDragModeDelayed(true, 3666 Launcher.EXIT_SPRINGLOADED_MODE_SHORT_TIMEOUT, null); 3667 } 3668 }); 3669 } 3670 }; 3671 3672 ItemInfo info = (ItemInfo) dragInfo; 3673 int spanX = info.spanX; 3674 int spanY = info.spanY; 3675 if (mDragInfo != null) { 3676 spanX = mDragInfo.spanX; 3677 spanY = mDragInfo.spanY; 3678 } 3679 3680 final long container = mLauncher.isHotseatLayout(cellLayout) ? 3681 LauncherSettings.Favorites.CONTAINER_HOTSEAT : 3682 LauncherSettings.Favorites.CONTAINER_DESKTOP; 3683 final long screenId = getIdForScreen(cellLayout); 3684 if (!mLauncher.isHotseatLayout(cellLayout) 3685 && screenId != getScreenIdForPageIndex(mCurrentPage) 3686 && mState != State.SPRING_LOADED) { 3687 snapToScreenId(screenId, null); 3688 } 3689 3690 if (info instanceof PendingAddItemInfo) { 3691 final PendingAddItemInfo pendingInfo = (PendingAddItemInfo) dragInfo; 3692 3693 boolean findNearestVacantCell = true; 3694 if (pendingInfo.itemType == LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT) { 3695 mTargetCell = findNearestArea((int) touchXY[0], (int) touchXY[1], spanX, spanY, 3696 cellLayout, mTargetCell); 3697 float distance = cellLayout.getDistanceFromCell(mDragViewVisualCenter[0], 3698 mDragViewVisualCenter[1], mTargetCell); 3699 if (willCreateUserFolder((ItemInfo) d.dragInfo, cellLayout, mTargetCell, 3700 distance, true) || willAddToExistingUserFolder((ItemInfo) d.dragInfo, 3701 cellLayout, mTargetCell, distance)) { 3702 findNearestVacantCell = false; 3703 } 3704 } 3705 3706 final ItemInfo item = (ItemInfo) d.dragInfo; 3707 boolean updateWidgetSize = false; 3708 if (findNearestVacantCell) { 3709 int minSpanX = item.spanX; 3710 int minSpanY = item.spanY; 3711 if (item.minSpanX > 0 && item.minSpanY > 0) { 3712 minSpanX = item.minSpanX; 3713 minSpanY = item.minSpanY; 3714 } 3715 int[] resultSpan = new int[2]; 3716 mTargetCell = cellLayout.createArea((int) mDragViewVisualCenter[0], 3717 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, info.spanX, info.spanY, 3718 null, mTargetCell, resultSpan, CellLayout.MODE_ON_DROP_EXTERNAL); 3719 3720 if (resultSpan[0] != item.spanX || resultSpan[1] != item.spanY) { 3721 updateWidgetSize = true; 3722 } 3723 item.spanX = resultSpan[0]; 3724 item.spanY = resultSpan[1]; 3725 } 3726 3727 Runnable onAnimationCompleteRunnable = new Runnable() { 3728 @Override 3729 public void run() { 3730 // When dragging and dropping from customization tray, we deal with creating 3731 // widgets/shortcuts/folders in a slightly different way 3732 switch (pendingInfo.itemType) { 3733 case LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET: 3734 int span[] = new int[2]; 3735 span[0] = item.spanX; 3736 span[1] = item.spanY; 3737 mLauncher.addAppWidgetFromDrop((PendingAddWidgetInfo) pendingInfo, 3738 container, screenId, mTargetCell, span, null); 3739 break; 3740 case LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT: 3741 mLauncher.processShortcutFromDrop(pendingInfo.componentName, 3742 container, screenId, mTargetCell, null); 3743 break; 3744 default: 3745 throw new IllegalStateException("Unknown item type: " + 3746 pendingInfo.itemType); 3747 } 3748 } 3749 }; 3750 View finalView = pendingInfo.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET 3751 ? ((PendingAddWidgetInfo) pendingInfo).boundWidget : null; 3752 3753 if (finalView instanceof AppWidgetHostView && updateWidgetSize) { 3754 AppWidgetHostView awhv = (AppWidgetHostView) finalView; 3755 AppWidgetResizeFrame.updateWidgetSizeRanges(awhv, mLauncher, item.spanX, 3756 item.spanY); 3757 } 3758 3759 int animationStyle = ANIMATE_INTO_POSITION_AND_DISAPPEAR; 3760 if (pendingInfo.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET && 3761 ((PendingAddWidgetInfo) pendingInfo).info.configure != null) { 3762 animationStyle = ANIMATE_INTO_POSITION_AND_REMAIN; 3763 } 3764 animateWidgetDrop(info, cellLayout, d.dragView, onAnimationCompleteRunnable, 3765 animationStyle, finalView, true); 3766 } else { 3767 // This is for other drag/drop cases, like dragging from All Apps 3768 View view = null; 3769 3770 switch (info.itemType) { 3771 case LauncherSettings.Favorites.ITEM_TYPE_APPLICATION: 3772 case LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT: 3773 if (info.container == NO_ID && info instanceof AppInfo) { 3774 // Came from all apps -- make a copy 3775 info = new ShortcutInfo((AppInfo) info); 3776 } 3777 view = mLauncher.createShortcut(R.layout.application, cellLayout, 3778 (ShortcutInfo) info); 3779 break; 3780 case LauncherSettings.Favorites.ITEM_TYPE_FOLDER: 3781 view = FolderIcon.fromXml(R.layout.folder_icon, mLauncher, cellLayout, 3782 (FolderInfo) info, mIconCache); 3783 break; 3784 default: 3785 throw new IllegalStateException("Unknown item type: " + info.itemType); 3786 } 3787 3788 // First we find the cell nearest to point at which the item is 3789 // dropped, without any consideration to whether there is an item there. 3790 if (touchXY != null) { 3791 mTargetCell = findNearestArea((int) touchXY[0], (int) touchXY[1], spanX, spanY, 3792 cellLayout, mTargetCell); 3793 float distance = cellLayout.getDistanceFromCell(mDragViewVisualCenter[0], 3794 mDragViewVisualCenter[1], mTargetCell); 3795 d.postAnimationRunnable = exitSpringLoadedRunnable; 3796 if (createUserFolderIfNecessary(view, container, cellLayout, mTargetCell, distance, 3797 true, d.dragView, d.postAnimationRunnable)) { 3798 return; 3799 } 3800 if (addToExistingFolderIfNecessary(view, cellLayout, mTargetCell, distance, d, 3801 true)) { 3802 return; 3803 } 3804 } 3805 3806 if (touchXY != null) { 3807 // when dragging and dropping, just find the closest free spot 3808 mTargetCell = cellLayout.createArea((int) mDragViewVisualCenter[0], 3809 (int) mDragViewVisualCenter[1], 1, 1, 1, 1, 3810 null, mTargetCell, null, CellLayout.MODE_ON_DROP_EXTERNAL); 3811 } else { 3812 cellLayout.findCellForSpan(mTargetCell, 1, 1); 3813 } 3814 addInScreen(view, container, screenId, mTargetCell[0], mTargetCell[1], info.spanX, 3815 info.spanY, insertAtFirst); 3816 cellLayout.onDropChild(view); 3817 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) view.getLayoutParams(); 3818 cellLayout.getShortcutsAndWidgets().measureChild(view); 3819 3820 LauncherModel.addOrMoveItemInDatabase(mLauncher, info, container, screenId, 3821 lp.cellX, lp.cellY); 3822 3823 if (d.dragView != null) { 3824 // We wrap the animation call in the temporary set and reset of the current 3825 // cellLayout to its final transform -- this means we animate the drag view to 3826 // the correct final location. 3827 setFinalTransitionTransform(cellLayout); 3828 mLauncher.getDragLayer().animateViewIntoPosition(d.dragView, view, 3829 exitSpringLoadedRunnable, this); 3830 resetTransitionTransform(cellLayout); 3831 } 3832 } 3833 } 3834 3835 public Bitmap createWidgetBitmap(ItemInfo widgetInfo, View layout) { 3836 int[] unScaledSize = mLauncher.getWorkspace().estimateItemSize(widgetInfo.spanX, 3837 widgetInfo.spanY, widgetInfo, false); 3838 int visibility = layout.getVisibility(); 3839 layout.setVisibility(VISIBLE); 3840 3841 int width = MeasureSpec.makeMeasureSpec(unScaledSize[0], MeasureSpec.EXACTLY); 3842 int height = MeasureSpec.makeMeasureSpec(unScaledSize[1], MeasureSpec.EXACTLY); 3843 Bitmap b = Bitmap.createBitmap(unScaledSize[0], unScaledSize[1], 3844 Bitmap.Config.ARGB_8888); 3845 Canvas c = new Canvas(b); 3846 3847 layout.measure(width, height); 3848 layout.layout(0, 0, unScaledSize[0], unScaledSize[1]); 3849 layout.draw(c); 3850 c.setBitmap(null); 3851 layout.setVisibility(visibility); 3852 return b; 3853 } 3854 3855 private void getFinalPositionForDropAnimation(int[] loc, float[] scaleXY, 3856 DragView dragView, CellLayout layout, ItemInfo info, int[] targetCell, 3857 boolean external, boolean scale) { 3858 // Now we animate the dragView, (ie. the widget or shortcut preview) into its final 3859 // location and size on the home screen. 3860 int spanX = info.spanX; 3861 int spanY = info.spanY; 3862 3863 Rect r = estimateItemPosition(layout, info, targetCell[0], targetCell[1], spanX, spanY); 3864 loc[0] = r.left; 3865 loc[1] = r.top; 3866 3867 setFinalTransitionTransform(layout); 3868 float cellLayoutScale = 3869 mLauncher.getDragLayer().getDescendantCoordRelativeToSelf(layout, loc, true); 3870 resetTransitionTransform(layout); 3871 3872 float dragViewScaleX; 3873 float dragViewScaleY; 3874 if (scale) { 3875 dragViewScaleX = (1.0f * r.width()) / dragView.getMeasuredWidth(); 3876 dragViewScaleY = (1.0f * r.height()) / dragView.getMeasuredHeight(); 3877 } else { 3878 dragViewScaleX = 1f; 3879 dragViewScaleY = 1f; 3880 } 3881 3882 // The animation will scale the dragView about its center, so we need to center about 3883 // the final location. 3884 loc[0] -= (dragView.getMeasuredWidth() - cellLayoutScale * r.width()) / 2; 3885 loc[1] -= (dragView.getMeasuredHeight() - cellLayoutScale * r.height()) / 2; 3886 3887 scaleXY[0] = dragViewScaleX * cellLayoutScale; 3888 scaleXY[1] = dragViewScaleY * cellLayoutScale; 3889 } 3890 3891 public void animateWidgetDrop(ItemInfo info, CellLayout cellLayout, DragView dragView, 3892 final Runnable onCompleteRunnable, int animationType, final View finalView, 3893 boolean external) { 3894 Rect from = new Rect(); 3895 mLauncher.getDragLayer().getViewRectRelativeToSelf(dragView, from); 3896 3897 int[] finalPos = new int[2]; 3898 float scaleXY[] = new float[2]; 3899 boolean scalePreview = !(info instanceof PendingAddShortcutInfo); 3900 getFinalPositionForDropAnimation(finalPos, scaleXY, dragView, cellLayout, info, mTargetCell, 3901 external, scalePreview); 3902 3903 Resources res = mLauncher.getResources(); 3904 final int duration = res.getInteger(R.integer.config_dropAnimMaxDuration) - 200; 3905 3906 // In the case where we've prebound the widget, we remove it from the DragLayer 3907 if (finalView instanceof AppWidgetHostView && external) { 3908 Log.d(TAG, "6557954 Animate widget drop, final view is appWidgetHostView"); 3909 mLauncher.getDragLayer().removeView(finalView); 3910 } 3911 if ((animationType == ANIMATE_INTO_POSITION_AND_RESIZE || external) && finalView != null) { 3912 Bitmap crossFadeBitmap = createWidgetBitmap(info, finalView); 3913 dragView.setCrossFadeBitmap(crossFadeBitmap); 3914 dragView.crossFade((int) (duration * 0.8f)); 3915 } else if (info.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET && external) { 3916 scaleXY[0] = scaleXY[1] = Math.min(scaleXY[0], scaleXY[1]); 3917 } 3918 3919 DragLayer dragLayer = mLauncher.getDragLayer(); 3920 if (animationType == CANCEL_TWO_STAGE_WIDGET_DROP_ANIMATION) { 3921 mLauncher.getDragLayer().animateViewIntoPosition(dragView, finalPos, 0f, 0.1f, 0.1f, 3922 DragLayer.ANIMATION_END_DISAPPEAR, onCompleteRunnable, duration); 3923 } else { 3924 int endStyle; 3925 if (animationType == ANIMATE_INTO_POSITION_AND_REMAIN) { 3926 endStyle = DragLayer.ANIMATION_END_REMAIN_VISIBLE; 3927 } else { 3928 endStyle = DragLayer.ANIMATION_END_DISAPPEAR;; 3929 } 3930 3931 Runnable onComplete = new Runnable() { 3932 @Override 3933 public void run() { 3934 if (finalView != null) { 3935 finalView.setVisibility(VISIBLE); 3936 } 3937 if (onCompleteRunnable != null) { 3938 onCompleteRunnable.run(); 3939 } 3940 } 3941 }; 3942 dragLayer.animateViewIntoPosition(dragView, from.left, from.top, finalPos[0], 3943 finalPos[1], 1, 1, 1, scaleXY[0], scaleXY[1], onComplete, endStyle, 3944 duration, this); 3945 } 3946 } 3947 3948 public void setFinalTransitionTransform(CellLayout layout) { 3949 if (isSwitchingState()) { 3950 mCurrentScale = getScaleX(); 3951 setScaleX(mNewScale); 3952 setScaleY(mNewScale); 3953 } 3954 } 3955 public void resetTransitionTransform(CellLayout layout) { 3956 if (isSwitchingState()) { 3957 setScaleX(mCurrentScale); 3958 setScaleY(mCurrentScale); 3959 } 3960 } 3961 3962 /** 3963 * Return the current {@link CellLayout}, correctly picking the destination 3964 * screen while a scroll is in progress. 3965 */ 3966 public CellLayout getCurrentDropLayout() { 3967 return (CellLayout) getChildAt(getNextPage()); 3968 } 3969 3970 /** 3971 * Return the current CellInfo describing our current drag; this method exists 3972 * so that Launcher can sync this object with the correct info when the activity is created/ 3973 * destroyed 3974 * 3975 */ 3976 public CellLayout.CellInfo getDragInfo() { 3977 return mDragInfo; 3978 } 3979 3980 public int getCurrentPageOffsetFromCustomContent() { 3981 return getNextPage() - numCustomPages(); 3982 } 3983 3984 /** 3985 * Calculate the nearest cell where the given object would be dropped. 3986 * 3987 * pixelX and pixelY should be in the coordinate system of layout 3988 */ 3989 private int[] findNearestArea(int pixelX, int pixelY, 3990 int spanX, int spanY, CellLayout layout, int[] recycle) { 3991 return layout.findNearestArea( 3992 pixelX, pixelY, spanX, spanY, recycle); 3993 } 3994 3995 void setup(DragController dragController) { 3996 mSpringLoadedDragController = new SpringLoadedDragController(mLauncher); 3997 mDragController = dragController; 3998 3999 // hardware layers on children are enabled on startup, but should be disabled until 4000 // needed 4001 updateChildrenLayersEnabled(false); 4002 setWallpaperDimension(); 4003 } 4004 4005 /** 4006 * Called at the end of a drag which originated on the workspace. 4007 */ 4008 public void onDropCompleted(final View target, final DragObject d, 4009 final boolean isFlingToDelete, final boolean success) { 4010 if (mDeferDropAfterUninstall) { 4011 mDeferredAction = new Runnable() { 4012 public void run() { 4013 onDropCompleted(target, d, isFlingToDelete, success); 4014 mDeferredAction = null; 4015 } 4016 }; 4017 return; 4018 } 4019 4020 boolean beingCalledAfterUninstall = mDeferredAction != null; 4021 4022 if (success && !(beingCalledAfterUninstall && !mUninstallSuccessful)) { 4023 if (target != this && mDragInfo != null) { 4024 CellLayout parentCell = getParentCellLayoutForView(mDragInfo.cell); 4025 if (parentCell != null) { 4026 parentCell.removeView(mDragInfo.cell); 4027 } 4028 if (mDragInfo.cell instanceof DropTarget) { 4029 mDragController.removeDropTarget((DropTarget) mDragInfo.cell); 4030 } 4031 // If we move the item to anything not on the Workspace, check if any empty 4032 // screens need to be removed. If we dropped back on the workspace, this will 4033 // be done post drop animation. 4034 removeExtraEmptyScreen(true, null, 0, true); 4035 } 4036 } else if (mDragInfo != null) { 4037 CellLayout cellLayout; 4038 if (mLauncher.isHotseatLayout(target)) { 4039 cellLayout = mLauncher.getHotseat().getLayout(); 4040 } else { 4041 cellLayout = getScreenWithId(mDragInfo.screenId); 4042 } 4043 cellLayout.onDropChild(mDragInfo.cell); 4044 } 4045 if ((d.cancelled || (beingCalledAfterUninstall && !mUninstallSuccessful)) 4046 && mDragInfo.cell != null) { 4047 mDragInfo.cell.setVisibility(VISIBLE); 4048 } 4049 mDragOutline = null; 4050 mDragInfo = null; 4051 } 4052 4053 public void deferCompleteDropAfterUninstallActivity() { 4054 mDeferDropAfterUninstall = true; 4055 } 4056 4057 /// maybe move this into a smaller part 4058 public void onUninstallActivityReturned(boolean success) { 4059 mDeferDropAfterUninstall = false; 4060 mUninstallSuccessful = success; 4061 if (mDeferredAction != null) { 4062 mDeferredAction.run(); 4063 } 4064 } 4065 4066 void updateItemLocationsInDatabase(CellLayout cl) { 4067 int count = cl.getShortcutsAndWidgets().getChildCount(); 4068 4069 long screenId = getIdForScreen(cl); 4070 int container = Favorites.CONTAINER_DESKTOP; 4071 4072 if (mLauncher.isHotseatLayout(cl)) { 4073 screenId = -1; 4074 container = Favorites.CONTAINER_HOTSEAT; 4075 } 4076 4077 for (int i = 0; i < count; i++) { 4078 View v = cl.getShortcutsAndWidgets().getChildAt(i); 4079 ItemInfo info = (ItemInfo) v.getTag(); 4080 // Null check required as the AllApps button doesn't have an item info 4081 if (info != null && info.requiresDbUpdate) { 4082 info.requiresDbUpdate = false; 4083 LauncherModel.modifyItemInDatabase(mLauncher, info, container, screenId, info.cellX, 4084 info.cellY, info.spanX, info.spanY); 4085 } 4086 } 4087 } 4088 4089 ArrayList<ComponentName> getUniqueComponents(boolean stripDuplicates, ArrayList<ComponentName> duplicates) { 4090 ArrayList<ComponentName> uniqueIntents = new ArrayList<ComponentName>(); 4091 getUniqueIntents((CellLayout) mLauncher.getHotseat().getLayout(), uniqueIntents, duplicates, false); 4092 int count = getChildCount(); 4093 for (int i = 0; i < count; i++) { 4094 CellLayout cl = (CellLayout) getChildAt(i); 4095 getUniqueIntents(cl, uniqueIntents, duplicates, false); 4096 } 4097 return uniqueIntents; 4098 } 4099 4100 void getUniqueIntents(CellLayout cl, ArrayList<ComponentName> uniqueIntents, 4101 ArrayList<ComponentName> duplicates, boolean stripDuplicates) { 4102 int count = cl.getShortcutsAndWidgets().getChildCount(); 4103 4104 ArrayList<View> children = new ArrayList<View>(); 4105 for (int i = 0; i < count; i++) { 4106 View v = cl.getShortcutsAndWidgets().getChildAt(i); 4107 children.add(v); 4108 } 4109 4110 for (int i = 0; i < count; i++) { 4111 View v = children.get(i); 4112 ItemInfo info = (ItemInfo) v.getTag(); 4113 // Null check required as the AllApps button doesn't have an item info 4114 if (info instanceof ShortcutInfo) { 4115 ShortcutInfo si = (ShortcutInfo) info; 4116 ComponentName cn = si.intent.getComponent(); 4117 4118 Uri dataUri = si.intent.getData(); 4119 // If dataUri is not null / empty or if this component isn't one that would 4120 // have previously showed up in the AllApps list, then this is a widget-type 4121 // shortcut, so ignore it. 4122 if (dataUri != null && !dataUri.equals(Uri.EMPTY)) { 4123 continue; 4124 } 4125 4126 if (!uniqueIntents.contains(cn)) { 4127 uniqueIntents.add(cn); 4128 } else { 4129 if (stripDuplicates) { 4130 cl.removeViewInLayout(v); 4131 LauncherModel.deleteItemFromDatabase(mLauncher, si); 4132 } 4133 if (duplicates != null) { 4134 duplicates.add(cn); 4135 } 4136 } 4137 } 4138 if (v instanceof FolderIcon) { 4139 FolderIcon fi = (FolderIcon) v; 4140 ArrayList<View> items = fi.getFolder().getItemsInReadingOrder(); 4141 for (int j = 0; j < items.size(); j++) { 4142 if (items.get(j).getTag() instanceof ShortcutInfo) { 4143 ShortcutInfo si = (ShortcutInfo) items.get(j).getTag(); 4144 ComponentName cn = si.intent.getComponent(); 4145 4146 Uri dataUri = si.intent.getData(); 4147 // If dataUri is not null / empty or if this component isn't one that would 4148 // have previously showed up in the AllApps list, then this is a widget-type 4149 // shortcut, so ignore it. 4150 if (dataUri != null && !dataUri.equals(Uri.EMPTY)) { 4151 continue; 4152 } 4153 4154 if (!uniqueIntents.contains(cn)) { 4155 uniqueIntents.add(cn); 4156 } else { 4157 if (stripDuplicates) { 4158 fi.getFolderInfo().remove(si); 4159 LauncherModel.deleteItemFromDatabase(mLauncher, si); 4160 } 4161 if (duplicates != null) { 4162 duplicates.add(cn); 4163 } 4164 } 4165 } 4166 } 4167 } 4168 } 4169 } 4170 4171 void saveWorkspaceToDb() { 4172 saveWorkspaceScreenToDb((CellLayout) mLauncher.getHotseat().getLayout()); 4173 int count = getChildCount(); 4174 for (int i = 0; i < count; i++) { 4175 CellLayout cl = (CellLayout) getChildAt(i); 4176 saveWorkspaceScreenToDb(cl); 4177 } 4178 } 4179 4180 void saveWorkspaceScreenToDb(CellLayout cl) { 4181 int count = cl.getShortcutsAndWidgets().getChildCount(); 4182 4183 long screenId = getIdForScreen(cl); 4184 int container = Favorites.CONTAINER_DESKTOP; 4185 4186 Hotseat hotseat = mLauncher.getHotseat(); 4187 if (mLauncher.isHotseatLayout(cl)) { 4188 screenId = -1; 4189 container = Favorites.CONTAINER_HOTSEAT; 4190 } 4191 4192 for (int i = 0; i < count; i++) { 4193 View v = cl.getShortcutsAndWidgets().getChildAt(i); 4194 ItemInfo info = (ItemInfo) v.getTag(); 4195 // Null check required as the AllApps button doesn't have an item info 4196 if (info != null) { 4197 int cellX = info.cellX; 4198 int cellY = info.cellY; 4199 if (container == Favorites.CONTAINER_HOTSEAT) { 4200 cellX = hotseat.getCellXFromOrder((int) info.screenId); 4201 cellY = hotseat.getCellYFromOrder((int) info.screenId); 4202 } 4203 LauncherModel.addItemToDatabase(mLauncher, info, container, screenId, cellX, 4204 cellY, false); 4205 } 4206 if (v instanceof FolderIcon) { 4207 FolderIcon fi = (FolderIcon) v; 4208 fi.getFolder().addItemLocationsInDatabase(); 4209 } 4210 } 4211 } 4212 4213 @Override 4214 public float getIntrinsicIconScaleFactor() { 4215 return 1f; 4216 } 4217 4218 @Override 4219 public boolean supportsFlingToDelete() { 4220 return true; 4221 } 4222 4223 @Override 4224 public void onFlingToDelete(DragObject d, int x, int y, PointF vec) { 4225 // Do nothing 4226 } 4227 4228 @Override 4229 public void onFlingToDeleteCompleted() { 4230 // Do nothing 4231 } 4232 4233 public boolean isDropEnabled() { 4234 return true; 4235 } 4236 4237 @Override 4238 protected void onRestoreInstanceState(Parcelable state) { 4239 super.onRestoreInstanceState(state); 4240 Launcher.setScreen(mCurrentPage); 4241 } 4242 4243 @Override 4244 protected void dispatchRestoreInstanceState(SparseArray<Parcelable> container) { 4245 // We don't dispatch restoreInstanceState to our children using this code path. 4246 // Some pages will be restored immediately as their items are bound immediately, and 4247 // others we will need to wait until after their items are bound. 4248 mSavedStates = container; 4249 } 4250 4251 public void restoreInstanceStateForChild(int child) { 4252 if (mSavedStates != null) { 4253 mRestoredPages.add(child); 4254 CellLayout cl = (CellLayout) getChildAt(child); 4255 cl.restoreInstanceState(mSavedStates); 4256 } 4257 } 4258 4259 public void restoreInstanceStateForRemainingPages() { 4260 int count = getChildCount(); 4261 for (int i = 0; i < count; i++) { 4262 if (!mRestoredPages.contains(i)) { 4263 restoreInstanceStateForChild(i); 4264 } 4265 } 4266 mRestoredPages.clear(); 4267 mSavedStates = null; 4268 } 4269 4270 @Override 4271 public void scrollLeft() { 4272 if (!isSmall() && !mIsSwitchingState) { 4273 super.scrollLeft(); 4274 } 4275 Folder openFolder = getOpenFolder(); 4276 if (openFolder != null) { 4277 openFolder.completeDragExit(); 4278 } 4279 } 4280 4281 @Override 4282 public void scrollRight() { 4283 if (!isSmall() && !mIsSwitchingState) { 4284 super.scrollRight(); 4285 } 4286 Folder openFolder = getOpenFolder(); 4287 if (openFolder != null) { 4288 openFolder.completeDragExit(); 4289 } 4290 } 4291 4292 @Override 4293 public boolean onEnterScrollArea(int x, int y, int direction) { 4294 // Ignore the scroll area if we are dragging over the hot seat 4295 boolean isPortrait = !LauncherAppState.isScreenLandscape(getContext()); 4296 if (mLauncher.getHotseat() != null && isPortrait) { 4297 Rect r = new Rect(); 4298 mLauncher.getHotseat().getHitRect(r); 4299 if (r.contains(x, y)) { 4300 return false; 4301 } 4302 } 4303 4304 boolean result = false; 4305 if (!isSmall() && !mIsSwitchingState && getOpenFolder() == null) { 4306 mInScrollArea = true; 4307 4308 final int page = getNextPage() + 4309 (direction == DragController.SCROLL_LEFT ? -1 : 1); 4310 // We always want to exit the current layout to ensure parity of enter / exit 4311 setCurrentDropLayout(null); 4312 4313 if (0 <= page && page < getChildCount()) { 4314 // Ensure that we are not dragging over to the custom content screen 4315 if (getScreenIdForPageIndex(page) == CUSTOM_CONTENT_SCREEN_ID) { 4316 return false; 4317 } 4318 4319 CellLayout layout = (CellLayout) getChildAt(page); 4320 setCurrentDragOverlappingLayout(layout); 4321 4322 // Workspace is responsible for drawing the edge glow on adjacent pages, 4323 // so we need to redraw the workspace when this may have changed. 4324 invalidate(); 4325 result = true; 4326 } 4327 } 4328 return result; 4329 } 4330 4331 @Override 4332 public boolean onExitScrollArea() { 4333 boolean result = false; 4334 if (mInScrollArea) { 4335 invalidate(); 4336 CellLayout layout = getCurrentDropLayout(); 4337 setCurrentDropLayout(layout); 4338 setCurrentDragOverlappingLayout(layout); 4339 4340 result = true; 4341 mInScrollArea = false; 4342 } 4343 return result; 4344 } 4345 4346 private void onResetScrollArea() { 4347 setCurrentDragOverlappingLayout(null); 4348 mInScrollArea = false; 4349 } 4350 4351 /** 4352 * Returns a specific CellLayout 4353 */ 4354 CellLayout getParentCellLayoutForView(View v) { 4355 ArrayList<CellLayout> layouts = getWorkspaceAndHotseatCellLayouts(); 4356 for (CellLayout layout : layouts) { 4357 if (layout.getShortcutsAndWidgets().indexOfChild(v) > -1) { 4358 return layout; 4359 } 4360 } 4361 return null; 4362 } 4363 4364 /** 4365 * Returns a list of all the CellLayouts in the workspace. 4366 */ 4367 ArrayList<CellLayout> getWorkspaceAndHotseatCellLayouts() { 4368 ArrayList<CellLayout> layouts = new ArrayList<CellLayout>(); 4369 int screenCount = getChildCount(); 4370 for (int screen = 0; screen < screenCount; screen++) { 4371 layouts.add(((CellLayout) getChildAt(screen))); 4372 } 4373 if (mLauncher.getHotseat() != null) { 4374 layouts.add(mLauncher.getHotseat().getLayout()); 4375 } 4376 return layouts; 4377 } 4378 4379 /** 4380 * We should only use this to search for specific children. Do not use this method to modify 4381 * ShortcutsAndWidgetsContainer directly. Includes ShortcutAndWidgetContainers from 4382 * the hotseat and workspace pages 4383 */ 4384 ArrayList<ShortcutAndWidgetContainer> getAllShortcutAndWidgetContainers() { 4385 ArrayList<ShortcutAndWidgetContainer> childrenLayouts = 4386 new ArrayList<ShortcutAndWidgetContainer>(); 4387 int screenCount = getChildCount(); 4388 for (int screen = 0; screen < screenCount; screen++) { 4389 childrenLayouts.add(((CellLayout) getChildAt(screen)).getShortcutsAndWidgets()); 4390 } 4391 if (mLauncher.getHotseat() != null) { 4392 childrenLayouts.add(mLauncher.getHotseat().getLayout().getShortcutsAndWidgets()); 4393 } 4394 return childrenLayouts; 4395 } 4396 4397 public Folder getFolderForTag(Object tag) { 4398 ArrayList<ShortcutAndWidgetContainer> childrenLayouts = 4399 getAllShortcutAndWidgetContainers(); 4400 for (ShortcutAndWidgetContainer layout: childrenLayouts) { 4401 int count = layout.getChildCount(); 4402 for (int i = 0; i < count; i++) { 4403 View child = layout.getChildAt(i); 4404 if (child instanceof Folder) { 4405 Folder f = (Folder) child; 4406 if (f.getInfo() == tag && f.getInfo().opened) { 4407 return f; 4408 } 4409 } 4410 } 4411 } 4412 return null; 4413 } 4414 4415 public View getViewForTag(Object tag) { 4416 ArrayList<ShortcutAndWidgetContainer> childrenLayouts = 4417 getAllShortcutAndWidgetContainers(); 4418 for (ShortcutAndWidgetContainer layout: childrenLayouts) { 4419 int count = layout.getChildCount(); 4420 for (int i = 0; i < count; i++) { 4421 View child = layout.getChildAt(i); 4422 if (child.getTag() == tag) { 4423 return child; 4424 } 4425 } 4426 } 4427 return null; 4428 } 4429 4430 void clearDropTargets() { 4431 ArrayList<ShortcutAndWidgetContainer> childrenLayouts = 4432 getAllShortcutAndWidgetContainers(); 4433 for (ShortcutAndWidgetContainer layout: childrenLayouts) { 4434 int childCount = layout.getChildCount(); 4435 for (int j = 0; j < childCount; j++) { 4436 View v = layout.getChildAt(j); 4437 if (v instanceof DropTarget) { 4438 mDragController.removeDropTarget((DropTarget) v); 4439 } 4440 } 4441 } 4442 } 4443 4444 // Removes ALL items that match a given package name, this is usually called when a package 4445 // has been removed and we want to remove all components (widgets, shortcuts, apps) that 4446 // belong to that package. 4447 void removeItemsByPackageName(final ArrayList<String> packages) { 4448 final HashSet<String> packageNames = new HashSet<String>(); 4449 packageNames.addAll(packages); 4450 4451 // Filter out all the ItemInfos that this is going to affect 4452 final HashSet<ItemInfo> infos = new HashSet<ItemInfo>(); 4453 final HashSet<ComponentName> cns = new HashSet<ComponentName>(); 4454 ArrayList<CellLayout> cellLayouts = getWorkspaceAndHotseatCellLayouts(); 4455 for (CellLayout layoutParent : cellLayouts) { 4456 ViewGroup layout = layoutParent.getShortcutsAndWidgets(); 4457 int childCount = layout.getChildCount(); 4458 for (int i = 0; i < childCount; ++i) { 4459 View view = layout.getChildAt(i); 4460 infos.add((ItemInfo) view.getTag()); 4461 } 4462 } 4463 LauncherModel.ItemInfoFilter filter = new LauncherModel.ItemInfoFilter() { 4464 @Override 4465 public boolean filterItem(ItemInfo parent, ItemInfo info, 4466 ComponentName cn) { 4467 if (packageNames.contains(cn.getPackageName())) { 4468 cns.add(cn); 4469 return true; 4470 } 4471 return false; 4472 } 4473 }; 4474 LauncherModel.filterItemInfos(infos, filter); 4475 4476 // Remove the affected components 4477 removeItemsByComponentName(cns); 4478 } 4479 4480 // Removes items that match the application info specified, when applications are removed 4481 // as a part of an update, this is called to ensure that other widgets and application 4482 // shortcuts are not removed. 4483 void removeItemsByApplicationInfo(final ArrayList<AppInfo> appInfos) { 4484 // Just create a hash table of all the specific components that this will affect 4485 HashSet<ComponentName> cns = new HashSet<ComponentName>(); 4486 for (AppInfo info : appInfos) { 4487 cns.add(info.componentName); 4488 } 4489 4490 // Remove all the things 4491 removeItemsByComponentName(cns); 4492 } 4493 4494 void removeItemsByComponentName(final HashSet<ComponentName> componentNames) { 4495 ArrayList<CellLayout> cellLayouts = getWorkspaceAndHotseatCellLayouts(); 4496 for (final CellLayout layoutParent: cellLayouts) { 4497 final ViewGroup layout = layoutParent.getShortcutsAndWidgets(); 4498 4499 final HashMap<ItemInfo, View> children = new HashMap<ItemInfo, View>(); 4500 for (int j = 0; j < layout.getChildCount(); j++) { 4501 final View view = layout.getChildAt(j); 4502 children.put((ItemInfo) view.getTag(), view); 4503 } 4504 4505 final ArrayList<View> childrenToRemove = new ArrayList<View>(); 4506 final HashMap<FolderInfo, ArrayList<ShortcutInfo>> folderAppsToRemove = 4507 new HashMap<FolderInfo, ArrayList<ShortcutInfo>>(); 4508 LauncherModel.ItemInfoFilter filter = new LauncherModel.ItemInfoFilter() { 4509 @Override 4510 public boolean filterItem(ItemInfo parent, ItemInfo info, 4511 ComponentName cn) { 4512 if (parent instanceof FolderInfo) { 4513 if (componentNames.contains(cn)) { 4514 FolderInfo folder = (FolderInfo) parent; 4515 ArrayList<ShortcutInfo> appsToRemove; 4516 if (folderAppsToRemove.containsKey(folder)) { 4517 appsToRemove = folderAppsToRemove.get(folder); 4518 } else { 4519 appsToRemove = new ArrayList<ShortcutInfo>(); 4520 folderAppsToRemove.put(folder, appsToRemove); 4521 } 4522 appsToRemove.add((ShortcutInfo) info); 4523 return true; 4524 } 4525 } else { 4526 if (componentNames.contains(cn)) { 4527 childrenToRemove.add(children.get(info)); 4528 return true; 4529 } 4530 } 4531 return false; 4532 } 4533 }; 4534 LauncherModel.filterItemInfos(children.keySet(), filter); 4535 4536 // Remove all the apps from their folders 4537 for (FolderInfo folder : folderAppsToRemove.keySet()) { 4538 ArrayList<ShortcutInfo> appsToRemove = folderAppsToRemove.get(folder); 4539 for (ShortcutInfo info : appsToRemove) { 4540 folder.remove(info); 4541 } 4542 } 4543 4544 // Remove all the other children 4545 for (View child : childrenToRemove) { 4546 // Note: We can not remove the view directly from CellLayoutChildren as this 4547 // does not re-mark the spaces as unoccupied. 4548 layoutParent.removeViewInLayout(child); 4549 if (child instanceof DropTarget) { 4550 mDragController.removeDropTarget((DropTarget) child); 4551 } 4552 } 4553 4554 if (childrenToRemove.size() > 0) { 4555 layout.requestLayout(); 4556 layout.invalidate(); 4557 } 4558 } 4559 4560 // Strip all the empty screens 4561 stripEmptyScreens(); 4562 } 4563 4564 private void updateShortcut(HashMap<ComponentName, AppInfo> appsMap, ItemInfo info, 4565 View child) { 4566 ComponentName cn = info.getIntent().getComponent(); 4567 if (cn != null) { 4568 AppInfo appInfo = appsMap.get(info.getIntent().getComponent()); 4569 if ((appInfo != null) && LauncherModel.isShortcutInfoUpdateable(info)) { 4570 ShortcutInfo shortcutInfo = (ShortcutInfo) info; 4571 BubbleTextView shortcut = (BubbleTextView) child; 4572 shortcutInfo.updateIcon(mIconCache); 4573 shortcutInfo.title = appInfo.title.toString(); 4574 shortcut.applyFromShortcutInfo(shortcutInfo, mIconCache); 4575 } 4576 } 4577 } 4578 4579 void updateShortcuts(ArrayList<AppInfo> apps) { 4580 // Create a map of the apps to test against 4581 final HashMap<ComponentName, AppInfo> appsMap = new HashMap<ComponentName, AppInfo>(); 4582 for (AppInfo ai : apps) { 4583 appsMap.put(ai.componentName, ai); 4584 } 4585 4586 ArrayList<ShortcutAndWidgetContainer> childrenLayouts = getAllShortcutAndWidgetContainers(); 4587 for (ShortcutAndWidgetContainer layout: childrenLayouts) { 4588 // Update all the children shortcuts 4589 final HashMap<ItemInfo, View> children = new HashMap<ItemInfo, View>(); 4590 for (int j = 0; j < layout.getChildCount(); j++) { 4591 View v = layout.getChildAt(j); 4592 ItemInfo info = (ItemInfo) v.getTag(); 4593 if (info instanceof FolderInfo && v instanceof FolderIcon) { 4594 FolderIcon folder = (FolderIcon) v; 4595 ArrayList<View> folderChildren = folder.getFolder().getItemsInReadingOrder(); 4596 for (View fv : folderChildren) { 4597 info = (ItemInfo) fv.getTag(); 4598 updateShortcut(appsMap, info, fv); 4599 } 4600 folder.invalidate(); 4601 } else if (info instanceof ShortcutInfo) { 4602 updateShortcut(appsMap, info, v); 4603 } 4604 } 4605 } 4606 } 4607 4608 private void moveToScreen(int page, boolean animate) { 4609 if (!isSmall()) { 4610 if (animate) { 4611 snapToPage(page); 4612 } else { 4613 setCurrentPage(page); 4614 } 4615 } 4616 View child = getChildAt(page); 4617 if (child != null) { 4618 child.requestFocus(); 4619 } 4620 } 4621 4622 void moveToDefaultScreen(boolean animate) { 4623 moveToScreen(mDefaultPage, animate); 4624 } 4625 4626 void moveToCustomContentScreen(boolean animate) { 4627 if (hasCustomContent()) { 4628 int ccIndex = getPageIndexForScreenId(CUSTOM_CONTENT_SCREEN_ID); 4629 if (animate) { 4630 snapToPage(ccIndex); 4631 } else { 4632 setCurrentPage(ccIndex); 4633 } 4634 View child = getChildAt(ccIndex); 4635 if (child != null) { 4636 child.requestFocus(); 4637 } 4638 } 4639 exitWidgetResizeMode(); 4640 } 4641 4642 @Override 4643 protected PageIndicator.PageMarkerResources getPageIndicatorMarker(int pageIndex) { 4644 long screenId = getScreenIdForPageIndex(pageIndex); 4645 if (screenId == EXTRA_EMPTY_SCREEN_ID) { 4646 int count = mScreenOrder.size() - numCustomPages(); 4647 if (count > 1) { 4648 return new PageIndicator.PageMarkerResources(R.drawable.ic_pageindicator_current, 4649 R.drawable.ic_pageindicator_add); 4650 } 4651 } 4652 4653 return super.getPageIndicatorMarker(pageIndex); 4654 } 4655 4656 @Override 4657 public void syncPages() { 4658 } 4659 4660 @Override 4661 public void syncPageItems(int page, boolean immediate) { 4662 } 4663 4664 protected String getPageIndicatorDescription() { 4665 String settings = getResources().getString(R.string.settings_button_text); 4666 return getCurrentPageDescription() + ", " + settings; 4667 } 4668 4669 protected String getCurrentPageDescription() { 4670 int page = (mNextPage != INVALID_PAGE) ? mNextPage : mCurrentPage; 4671 int delta = numCustomPages(); 4672 if (hasCustomContent() && getNextPage() == 0) { 4673 return mCustomContentDescription; 4674 } 4675 return String.format(getContext().getString(R.string.workspace_scroll_format), 4676 page + 1 - delta, getChildCount() - delta); 4677 } 4678 4679 public void getLocationInDragLayer(int[] loc) { 4680 mLauncher.getDragLayer().getLocationInDragLayer(this, loc); 4681 } 4682} 4683