Workspace.java revision b0ee08109ec89959d9bbd526c6e5f7ab96c8c3ea
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 pageIndicatorAlpha.addListener(new AlphaUpdateListener(pageIndicator)); 2239 } else { 2240 // create a dummy animation so we don't need to do null checks later 2241 pageIndicatorAlpha = ValueAnimator.ofFloat(0, 0); 2242 } 2243 2244 Animator hotseatAlpha = new LauncherViewPropertyAnimator(hotseat) 2245 .alpha(finalHotseatAndPageIndicatorAlpha).withLayer(); 2246 hotseatAlpha.addListener(new AlphaUpdateListener(hotseat)); 2247 2248 Animator searchBarAlpha = new LauncherViewPropertyAnimator(searchBar) 2249 .alpha(finalSearchBarAlpha).withLayer(); 2250 searchBarAlpha.addListener(new AlphaUpdateListener(searchBar)); 2251 2252 Animator overviewPanelAlpha = new LauncherViewPropertyAnimator(overviewPanel) 2253 .alpha(finalOverviewPanelAlpha).withLayer(); 2254 overviewPanelAlpha.addListener(new AlphaUpdateListener(overviewPanel)); 2255 2256 if (workspaceToOverview) { 2257 pageIndicatorAlpha.setInterpolator(new DecelerateInterpolator(2)); 2258 hotseatAlpha.setInterpolator(new DecelerateInterpolator(2)); 2259 overviewPanelAlpha.setInterpolator(null); 2260 } else if (overviewToWorkspace) { 2261 pageIndicatorAlpha.setInterpolator(null); 2262 hotseatAlpha.setInterpolator(null); 2263 overviewPanelAlpha.setInterpolator(new DecelerateInterpolator(2)); 2264 } 2265 searchBarAlpha.setInterpolator(null); 2266 2267 anim.play(overviewPanelAlpha); 2268 anim.play(hotseatAlpha); 2269 anim.play(searchBarAlpha); 2270 anim.play(pageIndicatorAlpha); 2271 anim.setStartDelay(delay); 2272 } else { 2273 overviewPanel.setAlpha(finalOverviewPanelAlpha); 2274 AlphaUpdateListener.updateVisibility(overviewPanel); 2275 hotseat.setAlpha(finalHotseatAndPageIndicatorAlpha); 2276 AlphaUpdateListener.updateVisibility(hotseat); 2277 if (pageIndicator != null) { 2278 pageIndicator.setAlpha(finalHotseatAndPageIndicatorAlpha); 2279 AlphaUpdateListener.updateVisibility(pageIndicator); 2280 } 2281 searchBar.setAlpha(finalSearchBarAlpha); 2282 AlphaUpdateListener.updateVisibility(searchBar); 2283 updateCustomContentVisibility(); 2284 setScaleX(mNewScale); 2285 setScaleY(mNewScale); 2286 setTranslationY(finalWorkspaceTranslationY); 2287 } 2288 mLauncher.updateVoiceButtonProxyVisible(false); 2289 2290 if (stateIsSpringLoaded) { 2291 // Right now we're covered by Apps Customize 2292 // Show the background gradient immediately, so the gradient will 2293 // be showing once AppsCustomize disappears 2294 animateBackgroundGradient(getResources().getInteger( 2295 R.integer.config_appsCustomizeSpringLoadedBgAlpha) / 100f, false); 2296 } else if (stateIsOverview) { 2297 animateBackgroundGradient(getResources().getInteger( 2298 R.integer.config_appsCustomizeSpringLoadedBgAlpha) / 100f, true); 2299 } else { 2300 // Fade the background gradient away 2301 animateBackgroundGradient(0f, animated); 2302 } 2303 return anim; 2304 } 2305 2306 static class AlphaUpdateListener implements AnimatorUpdateListener, AnimatorListener { 2307 View view; 2308 public AlphaUpdateListener(View v) { 2309 view = v; 2310 } 2311 2312 @Override 2313 public void onAnimationUpdate(ValueAnimator arg0) { 2314 updateVisibility(view); 2315 } 2316 2317 public static void updateVisibility(View view) { 2318 // We want to avoid the extra layout pass by setting the views to GONE unless 2319 // accessibility is on, in which case not setting them to GONE causes a glitch. 2320 int invisibleState = sAccessibilityEnabled ? GONE : INVISIBLE; 2321 if (view.getAlpha() < ALPHA_CUTOFF_THRESHOLD && view.getVisibility() != invisibleState) { 2322 view.setVisibility(invisibleState); 2323 } else if (view.getAlpha() > ALPHA_CUTOFF_THRESHOLD 2324 && view.getVisibility() != VISIBLE) { 2325 view.setVisibility(VISIBLE); 2326 } 2327 } 2328 2329 @Override 2330 public void onAnimationCancel(Animator arg0) { 2331 } 2332 2333 @Override 2334 public void onAnimationEnd(Animator arg0) { 2335 updateVisibility(view); 2336 } 2337 2338 @Override 2339 public void onAnimationRepeat(Animator arg0) { 2340 } 2341 2342 @Override 2343 public void onAnimationStart(Animator arg0) { 2344 // We want the views to be visible for animation, so fade-in/out is visible 2345 view.setVisibility(VISIBLE); 2346 } 2347 } 2348 2349 @Override 2350 public void onLauncherTransitionPrepare(Launcher l, boolean animated, boolean toWorkspace) { 2351 onTransitionPrepare(); 2352 } 2353 2354 @Override 2355 public void onLauncherTransitionStart(Launcher l, boolean animated, boolean toWorkspace) { 2356 } 2357 2358 @Override 2359 public void onLauncherTransitionStep(Launcher l, float t) { 2360 mTransitionProgress = t; 2361 } 2362 2363 @Override 2364 public void onLauncherTransitionEnd(Launcher l, boolean animated, boolean toWorkspace) { 2365 onTransitionEnd(); 2366 } 2367 2368 private void onTransitionPrepare() { 2369 mIsSwitchingState = true; 2370 2371 // Invalidate here to ensure that the pages are rendered during the state change transition. 2372 invalidate(); 2373 2374 updateChildrenLayersEnabled(false); 2375 hideCustomContentIfNecessary(); 2376 } 2377 2378 void updateCustomContentVisibility() { 2379 int visibility = mState == Workspace.State.NORMAL ? VISIBLE : INVISIBLE; 2380 if (hasCustomContent()) { 2381 mWorkspaceScreens.get(CUSTOM_CONTENT_SCREEN_ID).setVisibility(visibility); 2382 } 2383 } 2384 2385 void showCustomContentIfNecessary() { 2386 boolean show = mState == Workspace.State.NORMAL; 2387 if (show && hasCustomContent()) { 2388 mWorkspaceScreens.get(CUSTOM_CONTENT_SCREEN_ID).setVisibility(VISIBLE); 2389 } 2390 } 2391 2392 void hideCustomContentIfNecessary() { 2393 boolean hide = mState != Workspace.State.NORMAL; 2394 if (hide && hasCustomContent()) { 2395 disableLayoutTransitions(); 2396 mWorkspaceScreens.get(CUSTOM_CONTENT_SCREEN_ID).setVisibility(INVISIBLE); 2397 enableLayoutTransitions(); 2398 } 2399 } 2400 2401 private void onTransitionEnd() { 2402 mIsSwitchingState = false; 2403 updateChildrenLayersEnabled(false); 2404 // The code in getChangeStateAnimation to determine initialAlpha and finalAlpha will ensure 2405 // ensure that only the current page is visible during (and subsequently, after) the 2406 // transition animation. If fade adjacent pages is disabled, then re-enable the page 2407 // visibility after the transition animation. 2408 if (!mWorkspaceFadeInAdjacentScreens) { 2409 for (int i = 0; i < getChildCount(); i++) { 2410 final CellLayout cl = (CellLayout) getChildAt(i); 2411 cl.setShortcutAndWidgetAlpha(1f); 2412 } 2413 } else { 2414 for (int i = 0; i < numCustomPages(); i++) { 2415 final CellLayout cl = (CellLayout) getChildAt(i); 2416 cl.setShortcutAndWidgetAlpha(1f); 2417 } 2418 } 2419 showCustomContentIfNecessary(); 2420 } 2421 2422 @Override 2423 public View getContent() { 2424 return this; 2425 } 2426 2427 /** 2428 * Draw the View v into the given Canvas. 2429 * 2430 * @param v the view to draw 2431 * @param destCanvas the canvas to draw on 2432 * @param padding the horizontal and vertical padding to use when drawing 2433 */ 2434 private void drawDragView(View v, Canvas destCanvas, int padding, boolean pruneToDrawable) { 2435 final Rect clipRect = mTempRect; 2436 v.getDrawingRect(clipRect); 2437 2438 boolean textVisible = false; 2439 2440 destCanvas.save(); 2441 if (v instanceof TextView && pruneToDrawable) { 2442 Drawable d = ((TextView) v).getCompoundDrawables()[1]; 2443 clipRect.set(0, 0, d.getIntrinsicWidth() + padding, d.getIntrinsicHeight() + padding); 2444 destCanvas.translate(padding / 2, padding / 2); 2445 d.draw(destCanvas); 2446 } else { 2447 if (v instanceof FolderIcon) { 2448 // For FolderIcons the text can bleed into the icon area, and so we need to 2449 // hide the text completely (which can't be achieved by clipping). 2450 if (((FolderIcon) v).getTextVisible()) { 2451 ((FolderIcon) v).setTextVisible(false); 2452 textVisible = true; 2453 } 2454 } else if (v instanceof BubbleTextView) { 2455 final BubbleTextView tv = (BubbleTextView) v; 2456 clipRect.bottom = tv.getExtendedPaddingTop() - (int) BubbleTextView.PADDING_V + 2457 tv.getLayout().getLineTop(0); 2458 } else if (v instanceof TextView) { 2459 final TextView tv = (TextView) v; 2460 clipRect.bottom = tv.getExtendedPaddingTop() - tv.getCompoundDrawablePadding() + 2461 tv.getLayout().getLineTop(0); 2462 } 2463 destCanvas.translate(-v.getScrollX() + padding / 2, -v.getScrollY() + padding / 2); 2464 destCanvas.clipRect(clipRect, Op.REPLACE); 2465 v.draw(destCanvas); 2466 2467 // Restore text visibility of FolderIcon if necessary 2468 if (textVisible) { 2469 ((FolderIcon) v).setTextVisible(true); 2470 } 2471 } 2472 destCanvas.restore(); 2473 } 2474 2475 /** 2476 * Returns a new bitmap to show when the given View is being dragged around. 2477 * Responsibility for the bitmap is transferred to the caller. 2478 */ 2479 public Bitmap createDragBitmap(View v, Canvas canvas, int padding) { 2480 Bitmap b; 2481 2482 if (v instanceof TextView) { 2483 Drawable d = ((TextView) v).getCompoundDrawables()[1]; 2484 b = Bitmap.createBitmap(d.getIntrinsicWidth() + padding, 2485 d.getIntrinsicHeight() + padding, Bitmap.Config.ARGB_8888); 2486 } else { 2487 b = Bitmap.createBitmap( 2488 v.getWidth() + padding, v.getHeight() + padding, Bitmap.Config.ARGB_8888); 2489 } 2490 2491 canvas.setBitmap(b); 2492 drawDragView(v, canvas, padding, true); 2493 canvas.setBitmap(null); 2494 2495 return b; 2496 } 2497 2498 /** 2499 * Returns a new bitmap to be used as the object outline, e.g. to visualize the drop location. 2500 * Responsibility for the bitmap is transferred to the caller. 2501 */ 2502 private Bitmap createDragOutline(View v, Canvas canvas, int padding) { 2503 final int outlineColor = getResources().getColor(R.color.outline_color); 2504 final Bitmap b = Bitmap.createBitmap( 2505 v.getWidth() + padding, v.getHeight() + padding, Bitmap.Config.ARGB_8888); 2506 2507 canvas.setBitmap(b); 2508 drawDragView(v, canvas, padding, true); 2509 mOutlineHelper.applyMediumExpensiveOutlineWithBlur(b, canvas, outlineColor, outlineColor); 2510 canvas.setBitmap(null); 2511 return b; 2512 } 2513 2514 /** 2515 * Returns a new bitmap to be used as the object outline, e.g. to visualize the drop location. 2516 * Responsibility for the bitmap is transferred to the caller. 2517 */ 2518 private Bitmap createDragOutline(Bitmap orig, Canvas canvas, int padding, int w, int h, 2519 boolean clipAlpha) { 2520 final int outlineColor = getResources().getColor(R.color.outline_color); 2521 final Bitmap b = Bitmap.createBitmap(w, h, Bitmap.Config.ARGB_8888); 2522 canvas.setBitmap(b); 2523 2524 Rect src = new Rect(0, 0, orig.getWidth(), orig.getHeight()); 2525 float scaleFactor = Math.min((w - padding) / (float) orig.getWidth(), 2526 (h - padding) / (float) orig.getHeight()); 2527 int scaledWidth = (int) (scaleFactor * orig.getWidth()); 2528 int scaledHeight = (int) (scaleFactor * orig.getHeight()); 2529 Rect dst = new Rect(0, 0, scaledWidth, scaledHeight); 2530 2531 // center the image 2532 dst.offset((w - scaledWidth) / 2, (h - scaledHeight) / 2); 2533 2534 canvas.drawBitmap(orig, src, dst, null); 2535 mOutlineHelper.applyMediumExpensiveOutlineWithBlur(b, canvas, outlineColor, outlineColor, 2536 clipAlpha); 2537 canvas.setBitmap(null); 2538 2539 return b; 2540 } 2541 2542 void startDrag(CellLayout.CellInfo cellInfo) { 2543 View child = cellInfo.cell; 2544 2545 // Make sure the drag was started by a long press as opposed to a long click. 2546 if (!child.isInTouchMode()) { 2547 return; 2548 } 2549 2550 mDragInfo = cellInfo; 2551 child.setVisibility(INVISIBLE); 2552 CellLayout layout = (CellLayout) child.getParent().getParent(); 2553 layout.prepareChildForDrag(child); 2554 2555 child.clearFocus(); 2556 child.setPressed(false); 2557 2558 final Canvas canvas = new Canvas(); 2559 2560 // The outline is used to visualize where the item will land if dropped 2561 mDragOutline = createDragOutline(child, canvas, DRAG_BITMAP_PADDING); 2562 beginDragShared(child, this); 2563 } 2564 2565 public void beginDragShared(View child, DragSource source) { 2566 // The drag bitmap follows the touch point around on the screen 2567 final Bitmap b = createDragBitmap(child, new Canvas(), DRAG_BITMAP_PADDING); 2568 2569 final int bmpWidth = b.getWidth(); 2570 final int bmpHeight = b.getHeight(); 2571 2572 float scale = mLauncher.getDragLayer().getLocationInDragLayer(child, mTempXY); 2573 int dragLayerX = 2574 Math.round(mTempXY[0] - (bmpWidth - scale * child.getWidth()) / 2); 2575 int dragLayerY = 2576 Math.round(mTempXY[1] - (bmpHeight - scale * bmpHeight) / 2 2577 - DRAG_BITMAP_PADDING / 2); 2578 2579 LauncherAppState app = LauncherAppState.getInstance(); 2580 DeviceProfile grid = app.getDynamicGrid().getDeviceProfile(); 2581 Point dragVisualizeOffset = null; 2582 Rect dragRect = null; 2583 if (child instanceof BubbleTextView || child instanceof PagedViewIcon) { 2584 int iconSize = grid.iconSizePx; 2585 int top = child.getPaddingTop(); 2586 int left = (bmpWidth - iconSize) / 2; 2587 int right = left + iconSize; 2588 int bottom = top + iconSize; 2589 dragLayerY += top; 2590 // Note: The drag region is used to calculate drag layer offsets, but the 2591 // dragVisualizeOffset in addition to the dragRect (the size) to position the outline. 2592 dragVisualizeOffset = new Point(-DRAG_BITMAP_PADDING / 2, DRAG_BITMAP_PADDING / 2); 2593 dragRect = new Rect(left, top, right, bottom); 2594 } else if (child instanceof FolderIcon) { 2595 int previewSize = grid.folderIconSizePx; 2596 dragRect = new Rect(0, child.getPaddingTop(), child.getWidth(), previewSize); 2597 } 2598 2599 // Clear the pressed state if necessary 2600 if (child instanceof BubbleTextView) { 2601 BubbleTextView icon = (BubbleTextView) child; 2602 icon.clearPressedOrFocusedBackground(); 2603 } 2604 2605 if (child.getTag() == null || !(child.getTag() instanceof ItemInfo)) { 2606 String msg = "Drag started with a view that has no tag set. This " 2607 + "will cause a crash (issue 11627249) down the line. " 2608 + "View: " + child + " tag: " + child.getTag(); 2609 throw new IllegalStateException(msg); 2610 } 2611 2612 DragView dv = mDragController.startDrag(b, dragLayerX, dragLayerY, source, child.getTag(), 2613 DragController.DRAG_ACTION_MOVE, dragVisualizeOffset, dragRect, scale); 2614 dv.setIntrinsicIconScaleFactor(source.getIntrinsicIconScaleFactor()); 2615 2616 if (child.getParent() instanceof ShortcutAndWidgetContainer) { 2617 mDragSourceInternal = (ShortcutAndWidgetContainer) child.getParent(); 2618 } 2619 2620 b.recycle(); 2621 } 2622 2623 void addApplicationShortcut(ShortcutInfo info, CellLayout target, long container, long screenId, 2624 int cellX, int cellY, boolean insertAtFirst, int intersectX, int intersectY) { 2625 View view = mLauncher.createShortcut(R.layout.application, target, (ShortcutInfo) info); 2626 2627 final int[] cellXY = new int[2]; 2628 target.findCellForSpanThatIntersects(cellXY, 1, 1, intersectX, intersectY); 2629 addInScreen(view, container, screenId, cellXY[0], cellXY[1], 1, 1, insertAtFirst); 2630 2631 LauncherModel.addOrMoveItemInDatabase(mLauncher, info, container, screenId, cellXY[0], 2632 cellXY[1]); 2633 } 2634 2635 public boolean transitionStateShouldAllowDrop() { 2636 return ((!isSwitchingState() || mTransitionProgress > 0.5f) && mState != State.SMALL); 2637 } 2638 2639 /** 2640 * {@inheritDoc} 2641 */ 2642 public boolean acceptDrop(DragObject d) { 2643 // If it's an external drop (e.g. from All Apps), check if it should be accepted 2644 CellLayout dropTargetLayout = mDropToLayout; 2645 if (d.dragSource != this) { 2646 // Don't accept the drop if we're not over a screen at time of drop 2647 if (dropTargetLayout == null) { 2648 return false; 2649 } 2650 if (!transitionStateShouldAllowDrop()) return false; 2651 2652 mDragViewVisualCenter = getDragViewVisualCenter(d.x, d.y, d.xOffset, d.yOffset, 2653 d.dragView, mDragViewVisualCenter); 2654 2655 // We want the point to be mapped to the dragTarget. 2656 if (mLauncher.isHotseatLayout(dropTargetLayout)) { 2657 mapPointFromSelfToHotseatLayout(mLauncher.getHotseat(), mDragViewVisualCenter); 2658 } else { 2659 mapPointFromSelfToChild(dropTargetLayout, mDragViewVisualCenter, null); 2660 } 2661 2662 int spanX = 1; 2663 int spanY = 1; 2664 if (mDragInfo != null) { 2665 final CellLayout.CellInfo dragCellInfo = mDragInfo; 2666 spanX = dragCellInfo.spanX; 2667 spanY = dragCellInfo.spanY; 2668 } else { 2669 final ItemInfo dragInfo = (ItemInfo) d.dragInfo; 2670 spanX = dragInfo.spanX; 2671 spanY = dragInfo.spanY; 2672 } 2673 2674 int minSpanX = spanX; 2675 int minSpanY = spanY; 2676 if (d.dragInfo instanceof PendingAddWidgetInfo) { 2677 minSpanX = ((PendingAddWidgetInfo) d.dragInfo).minSpanX; 2678 minSpanY = ((PendingAddWidgetInfo) d.dragInfo).minSpanY; 2679 } 2680 2681 mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], 2682 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, dropTargetLayout, 2683 mTargetCell); 2684 float distance = dropTargetLayout.getDistanceFromCell(mDragViewVisualCenter[0], 2685 mDragViewVisualCenter[1], mTargetCell); 2686 if (willCreateUserFolder((ItemInfo) d.dragInfo, dropTargetLayout, 2687 mTargetCell, distance, true)) { 2688 return true; 2689 } 2690 if (willAddToExistingUserFolder((ItemInfo) d.dragInfo, dropTargetLayout, 2691 mTargetCell, distance)) { 2692 return true; 2693 } 2694 2695 int[] resultSpan = new int[2]; 2696 mTargetCell = dropTargetLayout.createArea((int) mDragViewVisualCenter[0], 2697 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, spanX, spanY, 2698 null, mTargetCell, resultSpan, CellLayout.MODE_ACCEPT_DROP); 2699 boolean foundCell = mTargetCell[0] >= 0 && mTargetCell[1] >= 0; 2700 2701 // Don't accept the drop if there's no room for the item 2702 if (!foundCell) { 2703 // Don't show the message if we are dropping on the AllApps button and the hotseat 2704 // is full 2705 boolean isHotseat = mLauncher.isHotseatLayout(dropTargetLayout); 2706 if (mTargetCell != null && isHotseat) { 2707 Hotseat hotseat = mLauncher.getHotseat(); 2708 if (hotseat.isAllAppsButtonRank( 2709 hotseat.getOrderInHotseat(mTargetCell[0], mTargetCell[1]))) { 2710 return false; 2711 } 2712 } 2713 2714 mLauncher.showOutOfSpaceMessage(isHotseat); 2715 return false; 2716 } 2717 } 2718 2719 long screenId = getIdForScreen(dropTargetLayout); 2720 if (screenId == EXTRA_EMPTY_SCREEN_ID) { 2721 commitExtraEmptyScreen(); 2722 } 2723 2724 return true; 2725 } 2726 2727 boolean willCreateUserFolder(ItemInfo info, CellLayout target, int[] targetCell, float 2728 distance, boolean considerTimeout) { 2729 if (distance > mMaxDistanceForFolderCreation) return false; 2730 View dropOverView = target.getChildAt(targetCell[0], targetCell[1]); 2731 2732 if (dropOverView != null) { 2733 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) dropOverView.getLayoutParams(); 2734 if (lp.useTmpCoords && (lp.tmpCellX != lp.cellX || lp.tmpCellY != lp.tmpCellY)) { 2735 return false; 2736 } 2737 } 2738 2739 boolean hasntMoved = false; 2740 if (mDragInfo != null) { 2741 hasntMoved = dropOverView == mDragInfo.cell; 2742 } 2743 2744 if (dropOverView == null || hasntMoved || (considerTimeout && !mCreateUserFolderOnDrop)) { 2745 return false; 2746 } 2747 2748 boolean aboveShortcut = (dropOverView.getTag() instanceof ShortcutInfo); 2749 boolean willBecomeShortcut = 2750 (info.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPLICATION || 2751 info.itemType == LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT); 2752 2753 return (aboveShortcut && willBecomeShortcut); 2754 } 2755 2756 boolean willAddToExistingUserFolder(Object dragInfo, CellLayout target, int[] targetCell, 2757 float distance) { 2758 if (distance > mMaxDistanceForFolderCreation) return false; 2759 View dropOverView = target.getChildAt(targetCell[0], targetCell[1]); 2760 2761 if (dropOverView != null) { 2762 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) dropOverView.getLayoutParams(); 2763 if (lp.useTmpCoords && (lp.tmpCellX != lp.cellX || lp.tmpCellY != lp.tmpCellY)) { 2764 return false; 2765 } 2766 } 2767 2768 if (dropOverView instanceof FolderIcon) { 2769 FolderIcon fi = (FolderIcon) dropOverView; 2770 if (fi.acceptDrop(dragInfo)) { 2771 return true; 2772 } 2773 } 2774 return false; 2775 } 2776 2777 boolean createUserFolderIfNecessary(View newView, long container, CellLayout target, 2778 int[] targetCell, float distance, boolean external, DragView dragView, 2779 Runnable postAnimationRunnable) { 2780 if (distance > mMaxDistanceForFolderCreation) return false; 2781 View v = target.getChildAt(targetCell[0], targetCell[1]); 2782 2783 boolean hasntMoved = false; 2784 if (mDragInfo != null) { 2785 CellLayout cellParent = getParentCellLayoutForView(mDragInfo.cell); 2786 hasntMoved = (mDragInfo.cellX == targetCell[0] && 2787 mDragInfo.cellY == targetCell[1]) && (cellParent == target); 2788 } 2789 2790 if (v == null || hasntMoved || !mCreateUserFolderOnDrop) return false; 2791 mCreateUserFolderOnDrop = false; 2792 final long screenId = (targetCell == null) ? mDragInfo.screenId : getIdForScreen(target); 2793 2794 boolean aboveShortcut = (v.getTag() instanceof ShortcutInfo); 2795 boolean willBecomeShortcut = (newView.getTag() instanceof ShortcutInfo); 2796 2797 if (aboveShortcut && willBecomeShortcut) { 2798 ShortcutInfo sourceInfo = (ShortcutInfo) newView.getTag(); 2799 ShortcutInfo destInfo = (ShortcutInfo) v.getTag(); 2800 // if the drag started here, we need to remove it from the workspace 2801 if (!external) { 2802 getParentCellLayoutForView(mDragInfo.cell).removeView(mDragInfo.cell); 2803 } 2804 2805 Rect folderLocation = new Rect(); 2806 float scale = mLauncher.getDragLayer().getDescendantRectRelativeToSelf(v, folderLocation); 2807 target.removeView(v); 2808 2809 FolderIcon fi = 2810 mLauncher.addFolder(target, container, screenId, targetCell[0], targetCell[1]); 2811 destInfo.cellX = -1; 2812 destInfo.cellY = -1; 2813 sourceInfo.cellX = -1; 2814 sourceInfo.cellY = -1; 2815 2816 // If the dragView is null, we can't animate 2817 boolean animate = dragView != null; 2818 if (animate) { 2819 fi.performCreateAnimation(destInfo, v, sourceInfo, dragView, folderLocation, scale, 2820 postAnimationRunnable); 2821 } else { 2822 fi.addItem(destInfo); 2823 fi.addItem(sourceInfo); 2824 } 2825 return true; 2826 } 2827 return false; 2828 } 2829 2830 boolean addToExistingFolderIfNecessary(View newView, CellLayout target, int[] targetCell, 2831 float distance, DragObject d, boolean external) { 2832 if (distance > mMaxDistanceForFolderCreation) return false; 2833 2834 View dropOverView = target.getChildAt(targetCell[0], targetCell[1]); 2835 if (!mAddToExistingFolderOnDrop) return false; 2836 mAddToExistingFolderOnDrop = false; 2837 2838 if (dropOverView instanceof FolderIcon) { 2839 FolderIcon fi = (FolderIcon) dropOverView; 2840 if (fi.acceptDrop(d.dragInfo)) { 2841 fi.onDrop(d); 2842 2843 // if the drag started here, we need to remove it from the workspace 2844 if (!external) { 2845 getParentCellLayoutForView(mDragInfo.cell).removeView(mDragInfo.cell); 2846 } 2847 return true; 2848 } 2849 } 2850 return false; 2851 } 2852 2853 public void onDrop(final DragObject d) { 2854 mDragViewVisualCenter = getDragViewVisualCenter(d.x, d.y, d.xOffset, d.yOffset, d.dragView, 2855 mDragViewVisualCenter); 2856 2857 CellLayout dropTargetLayout = mDropToLayout; 2858 2859 // We want the point to be mapped to the dragTarget. 2860 if (dropTargetLayout != null) { 2861 if (mLauncher.isHotseatLayout(dropTargetLayout)) { 2862 mapPointFromSelfToHotseatLayout(mLauncher.getHotseat(), mDragViewVisualCenter); 2863 } else { 2864 mapPointFromSelfToChild(dropTargetLayout, mDragViewVisualCenter, null); 2865 } 2866 } 2867 2868 int snapScreen = -1; 2869 boolean resizeOnDrop = false; 2870 if (d.dragSource != this) { 2871 final int[] touchXY = new int[] { (int) mDragViewVisualCenter[0], 2872 (int) mDragViewVisualCenter[1] }; 2873 onDropExternal(touchXY, d.dragInfo, dropTargetLayout, false, d); 2874 } else if (mDragInfo != null) { 2875 final View cell = mDragInfo.cell; 2876 2877 Runnable resizeRunnable = null; 2878 if (dropTargetLayout != null && !d.cancelled) { 2879 // Move internally 2880 boolean hasMovedLayouts = (getParentCellLayoutForView(cell) != dropTargetLayout); 2881 boolean hasMovedIntoHotseat = mLauncher.isHotseatLayout(dropTargetLayout); 2882 long container = hasMovedIntoHotseat ? 2883 LauncherSettings.Favorites.CONTAINER_HOTSEAT : 2884 LauncherSettings.Favorites.CONTAINER_DESKTOP; 2885 long screenId = (mTargetCell[0] < 0) ? 2886 mDragInfo.screenId : getIdForScreen(dropTargetLayout); 2887 int spanX = mDragInfo != null ? mDragInfo.spanX : 1; 2888 int spanY = mDragInfo != null ? mDragInfo.spanY : 1; 2889 // First we find the cell nearest to point at which the item is 2890 // dropped, without any consideration to whether there is an item there. 2891 2892 mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], (int) 2893 mDragViewVisualCenter[1], spanX, spanY, dropTargetLayout, mTargetCell); 2894 float distance = dropTargetLayout.getDistanceFromCell(mDragViewVisualCenter[0], 2895 mDragViewVisualCenter[1], mTargetCell); 2896 2897 // If the item being dropped is a shortcut and the nearest drop 2898 // cell also contains a shortcut, then create a folder with the two shortcuts. 2899 if (!mInScrollArea && createUserFolderIfNecessary(cell, container, 2900 dropTargetLayout, mTargetCell, distance, false, d.dragView, null)) { 2901 removeExtraEmptyScreen(true, null, 0, true); 2902 return; 2903 } 2904 2905 if (addToExistingFolderIfNecessary(cell, dropTargetLayout, mTargetCell, 2906 distance, d, false)) { 2907 removeExtraEmptyScreen(true, null, 0, true); 2908 return; 2909 } 2910 2911 // Aside from the special case where we're dropping a shortcut onto a shortcut, 2912 // we need to find the nearest cell location that is vacant 2913 ItemInfo item = (ItemInfo) d.dragInfo; 2914 int minSpanX = item.spanX; 2915 int minSpanY = item.spanY; 2916 if (item.minSpanX > 0 && item.minSpanY > 0) { 2917 minSpanX = item.minSpanX; 2918 minSpanY = item.minSpanY; 2919 } 2920 2921 int[] resultSpan = new int[2]; 2922 mTargetCell = dropTargetLayout.createArea((int) mDragViewVisualCenter[0], 2923 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, spanX, spanY, cell, 2924 mTargetCell, resultSpan, CellLayout.MODE_ON_DROP); 2925 2926 boolean foundCell = mTargetCell[0] >= 0 && mTargetCell[1] >= 0; 2927 2928 // if the widget resizes on drop 2929 if (foundCell && (cell instanceof AppWidgetHostView) && 2930 (resultSpan[0] != item.spanX || resultSpan[1] != item.spanY)) { 2931 resizeOnDrop = true; 2932 item.spanX = resultSpan[0]; 2933 item.spanY = resultSpan[1]; 2934 AppWidgetHostView awhv = (AppWidgetHostView) cell; 2935 AppWidgetResizeFrame.updateWidgetSizeRanges(awhv, mLauncher, resultSpan[0], 2936 resultSpan[1]); 2937 } 2938 2939 if (getScreenIdForPageIndex(mCurrentPage) != screenId && !hasMovedIntoHotseat) { 2940 snapScreen = getPageIndexForScreenId(screenId); 2941 snapToPage(snapScreen); 2942 } 2943 2944 if (foundCell) { 2945 final ItemInfo info = (ItemInfo) cell.getTag(); 2946 if (hasMovedLayouts) { 2947 // Reparent the view 2948 getParentCellLayoutForView(cell).removeView(cell); 2949 addInScreen(cell, container, screenId, mTargetCell[0], mTargetCell[1], 2950 info.spanX, info.spanY); 2951 } 2952 2953 // update the item's position after drop 2954 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) cell.getLayoutParams(); 2955 lp.cellX = lp.tmpCellX = mTargetCell[0]; 2956 lp.cellY = lp.tmpCellY = mTargetCell[1]; 2957 lp.cellHSpan = item.spanX; 2958 lp.cellVSpan = item.spanY; 2959 lp.isLockedToGrid = true; 2960 2961 if (container != LauncherSettings.Favorites.CONTAINER_HOTSEAT && 2962 cell instanceof LauncherAppWidgetHostView) { 2963 final CellLayout cellLayout = dropTargetLayout; 2964 // We post this call so that the widget has a chance to be placed 2965 // in its final location 2966 2967 final LauncherAppWidgetHostView hostView = (LauncherAppWidgetHostView) cell; 2968 AppWidgetProviderInfo pinfo = hostView.getAppWidgetInfo(); 2969 if (pinfo != null && 2970 pinfo.resizeMode != AppWidgetProviderInfo.RESIZE_NONE) { 2971 final Runnable addResizeFrame = new Runnable() { 2972 public void run() { 2973 DragLayer dragLayer = mLauncher.getDragLayer(); 2974 dragLayer.addResizeFrame(info, hostView, cellLayout); 2975 } 2976 }; 2977 resizeRunnable = (new Runnable() { 2978 public void run() { 2979 if (!isPageMoving()) { 2980 addResizeFrame.run(); 2981 } else { 2982 mDelayedResizeRunnable = addResizeFrame; 2983 } 2984 } 2985 }); 2986 } 2987 } 2988 2989 LauncherModel.modifyItemInDatabase(mLauncher, info, container, screenId, lp.cellX, 2990 lp.cellY, item.spanX, item.spanY); 2991 } else { 2992 // If we can't find a drop location, we return the item to its original position 2993 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) cell.getLayoutParams(); 2994 mTargetCell[0] = lp.cellX; 2995 mTargetCell[1] = lp.cellY; 2996 CellLayout layout = (CellLayout) cell.getParent().getParent(); 2997 layout.markCellsAsOccupiedForView(cell); 2998 } 2999 } 3000 3001 final CellLayout parent = (CellLayout) cell.getParent().getParent(); 3002 final Runnable finalResizeRunnable = resizeRunnable; 3003 // Prepare it to be animated into its new position 3004 // This must be called after the view has been re-parented 3005 final Runnable onCompleteRunnable = new Runnable() { 3006 @Override 3007 public void run() { 3008 mAnimatingViewIntoPlace = false; 3009 updateChildrenLayersEnabled(false); 3010 if (finalResizeRunnable != null) { 3011 finalResizeRunnable.run(); 3012 } 3013 removeExtraEmptyScreen(true, null, 0, true); 3014 } 3015 }; 3016 mAnimatingViewIntoPlace = true; 3017 if (d.dragView.hasDrawn()) { 3018 final ItemInfo info = (ItemInfo) cell.getTag(); 3019 if (info.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET) { 3020 int animationType = resizeOnDrop ? ANIMATE_INTO_POSITION_AND_RESIZE : 3021 ANIMATE_INTO_POSITION_AND_DISAPPEAR; 3022 animateWidgetDrop(info, parent, d.dragView, 3023 onCompleteRunnable, animationType, cell, false); 3024 } else { 3025 int duration = snapScreen < 0 ? -1 : ADJACENT_SCREEN_DROP_DURATION; 3026 mLauncher.getDragLayer().animateViewIntoPosition(d.dragView, cell, duration, 3027 onCompleteRunnable, this); 3028 } 3029 } else { 3030 d.deferDragViewCleanupPostAnimation = false; 3031 cell.setVisibility(VISIBLE); 3032 } 3033 parent.onDropChild(cell); 3034 } 3035 } 3036 3037 public void setFinalScrollForPageChange(int pageIndex) { 3038 CellLayout cl = (CellLayout) getChildAt(pageIndex); 3039 if (cl != null) { 3040 mSavedScrollX = getScrollX(); 3041 mSavedTranslationX = cl.getTranslationX(); 3042 mSavedRotationY = cl.getRotationY(); 3043 final int newX = getScrollForPage(pageIndex); 3044 setScrollX(newX); 3045 cl.setTranslationX(0f); 3046 cl.setRotationY(0f); 3047 } 3048 } 3049 3050 public void resetFinalScrollForPageChange(int pageIndex) { 3051 if (pageIndex >= 0) { 3052 CellLayout cl = (CellLayout) getChildAt(pageIndex); 3053 setScrollX(mSavedScrollX); 3054 cl.setTranslationX(mSavedTranslationX); 3055 cl.setRotationY(mSavedRotationY); 3056 } 3057 } 3058 3059 public void getViewLocationRelativeToSelf(View v, int[] location) { 3060 getLocationInWindow(location); 3061 int x = location[0]; 3062 int y = location[1]; 3063 3064 v.getLocationInWindow(location); 3065 int vX = location[0]; 3066 int vY = location[1]; 3067 3068 location[0] = vX - x; 3069 location[1] = vY - y; 3070 } 3071 3072 public void onDragEnter(DragObject d) { 3073 mDragEnforcer.onDragEnter(); 3074 mCreateUserFolderOnDrop = false; 3075 mAddToExistingFolderOnDrop = false; 3076 3077 mDropToLayout = null; 3078 CellLayout layout = getCurrentDropLayout(); 3079 setCurrentDropLayout(layout); 3080 setCurrentDragOverlappingLayout(layout); 3081 3082 // Because we don't have space in the Phone UI (the CellLayouts run to the edge) we 3083 // don't need to show the outlines 3084 if (LauncherAppState.getInstance().isScreenLarge()) { 3085 showOutlines(); 3086 } 3087 } 3088 3089 /** Return a rect that has the cellWidth/cellHeight (left, top), and 3090 * widthGap/heightGap (right, bottom) */ 3091 static Rect getCellLayoutMetrics(Launcher launcher, int orientation) { 3092 LauncherAppState app = LauncherAppState.getInstance(); 3093 DeviceProfile grid = app.getDynamicGrid().getDeviceProfile(); 3094 3095 Resources res = launcher.getResources(); 3096 Display display = launcher.getWindowManager().getDefaultDisplay(); 3097 Point smallestSize = new Point(); 3098 Point largestSize = new Point(); 3099 display.getCurrentSizeRange(smallestSize, largestSize); 3100 int countX = (int) grid.numColumns; 3101 int countY = (int) grid.numRows; 3102 int constrainedLongEdge = largestSize.y; 3103 int constrainedShortEdge = smallestSize.y; 3104 if (orientation == CellLayout.LANDSCAPE) { 3105 if (mLandscapeCellLayoutMetrics == null) { 3106 Rect padding = grid.getWorkspacePadding(CellLayout.LANDSCAPE); 3107 int width = constrainedLongEdge - padding.left - padding.right; 3108 int height = constrainedShortEdge - padding.top - padding.bottom; 3109 mLandscapeCellLayoutMetrics = new Rect(); 3110 mLandscapeCellLayoutMetrics.set( 3111 grid.calculateCellWidth(width, countX), 3112 grid.calculateCellHeight(height, countY), 0, 0); 3113 } 3114 return mLandscapeCellLayoutMetrics; 3115 } else if (orientation == CellLayout.PORTRAIT) { 3116 if (mPortraitCellLayoutMetrics == null) { 3117 Rect padding = grid.getWorkspacePadding(CellLayout.PORTRAIT); 3118 int width = constrainedShortEdge - padding.left - padding.right; 3119 int height = constrainedLongEdge - padding.top - padding.bottom; 3120 mPortraitCellLayoutMetrics = new Rect(); 3121 mPortraitCellLayoutMetrics.set( 3122 grid.calculateCellWidth(width, countX), 3123 grid.calculateCellHeight(height, countY), 0, 0); 3124 } 3125 return mPortraitCellLayoutMetrics; 3126 } 3127 return null; 3128 } 3129 3130 public void onDragExit(DragObject d) { 3131 mDragEnforcer.onDragExit(); 3132 3133 // Here we store the final page that will be dropped to, if the workspace in fact 3134 // receives the drop 3135 if (mInScrollArea) { 3136 if (isPageMoving()) { 3137 // If the user drops while the page is scrolling, we should use that page as the 3138 // destination instead of the page that is being hovered over. 3139 mDropToLayout = (CellLayout) getPageAt(getNextPage()); 3140 } else { 3141 mDropToLayout = mDragOverlappingLayout; 3142 } 3143 } else { 3144 mDropToLayout = mDragTargetLayout; 3145 } 3146 3147 if (mDragMode == DRAG_MODE_CREATE_FOLDER) { 3148 mCreateUserFolderOnDrop = true; 3149 } else if (mDragMode == DRAG_MODE_ADD_TO_FOLDER) { 3150 mAddToExistingFolderOnDrop = true; 3151 } 3152 3153 // Reset the scroll area and previous drag target 3154 onResetScrollArea(); 3155 setCurrentDropLayout(null); 3156 setCurrentDragOverlappingLayout(null); 3157 3158 mSpringLoadedDragController.cancel(); 3159 3160 if (!mIsPageMoving) { 3161 hideOutlines(); 3162 } 3163 } 3164 3165 void setCurrentDropLayout(CellLayout layout) { 3166 if (mDragTargetLayout != null) { 3167 mDragTargetLayout.revertTempState(); 3168 mDragTargetLayout.onDragExit(); 3169 } 3170 mDragTargetLayout = layout; 3171 if (mDragTargetLayout != null) { 3172 mDragTargetLayout.onDragEnter(); 3173 } 3174 cleanupReorder(true); 3175 cleanupFolderCreation(); 3176 setCurrentDropOverCell(-1, -1); 3177 } 3178 3179 void setCurrentDragOverlappingLayout(CellLayout layout) { 3180 if (mDragOverlappingLayout != null) { 3181 mDragOverlappingLayout.setIsDragOverlapping(false); 3182 } 3183 mDragOverlappingLayout = layout; 3184 if (mDragOverlappingLayout != null) { 3185 mDragOverlappingLayout.setIsDragOverlapping(true); 3186 } 3187 invalidate(); 3188 } 3189 3190 void setCurrentDropOverCell(int x, int y) { 3191 if (x != mDragOverX || y != mDragOverY) { 3192 mDragOverX = x; 3193 mDragOverY = y; 3194 setDragMode(DRAG_MODE_NONE); 3195 } 3196 } 3197 3198 void setDragMode(int dragMode) { 3199 if (dragMode != mDragMode) { 3200 if (dragMode == DRAG_MODE_NONE) { 3201 cleanupAddToFolder(); 3202 // We don't want to cancel the re-order alarm every time the target cell changes 3203 // as this feels to slow / unresponsive. 3204 cleanupReorder(false); 3205 cleanupFolderCreation(); 3206 } else if (dragMode == DRAG_MODE_ADD_TO_FOLDER) { 3207 cleanupReorder(true); 3208 cleanupFolderCreation(); 3209 } else if (dragMode == DRAG_MODE_CREATE_FOLDER) { 3210 cleanupAddToFolder(); 3211 cleanupReorder(true); 3212 } else if (dragMode == DRAG_MODE_REORDER) { 3213 cleanupAddToFolder(); 3214 cleanupFolderCreation(); 3215 } 3216 mDragMode = dragMode; 3217 } 3218 } 3219 3220 private void cleanupFolderCreation() { 3221 if (mDragFolderRingAnimator != null) { 3222 mDragFolderRingAnimator.animateToNaturalState(); 3223 mDragFolderRingAnimator = null; 3224 } 3225 mFolderCreationAlarm.setOnAlarmListener(null); 3226 mFolderCreationAlarm.cancelAlarm(); 3227 } 3228 3229 private void cleanupAddToFolder() { 3230 if (mDragOverFolderIcon != null) { 3231 mDragOverFolderIcon.onDragExit(null); 3232 mDragOverFolderIcon = null; 3233 } 3234 } 3235 3236 private void cleanupReorder(boolean cancelAlarm) { 3237 // Any pending reorders are canceled 3238 if (cancelAlarm) { 3239 mReorderAlarm.cancelAlarm(); 3240 } 3241 mLastReorderX = -1; 3242 mLastReorderY = -1; 3243 } 3244 3245 /* 3246 * 3247 * Convert the 2D coordinate xy from the parent View's coordinate space to this CellLayout's 3248 * coordinate space. The argument xy is modified with the return result. 3249 * 3250 * if cachedInverseMatrix is not null, this method will just use that matrix instead of 3251 * computing it itself; we use this to avoid redundant matrix inversions in 3252 * findMatchingPageForDragOver 3253 * 3254 */ 3255 void mapPointFromSelfToChild(View v, float[] xy, Matrix cachedInverseMatrix) { 3256 xy[0] = xy[0] - v.getLeft(); 3257 xy[1] = xy[1] - v.getTop(); 3258 } 3259 3260 boolean isPointInSelfOverHotseat(int x, int y, Rect r) { 3261 if (r == null) { 3262 r = new Rect(); 3263 } 3264 mTempPt[0] = x; 3265 mTempPt[1] = y; 3266 mLauncher.getDragLayer().getDescendantCoordRelativeToSelf(this, mTempPt, true); 3267 3268 LauncherAppState app = LauncherAppState.getInstance(); 3269 DeviceProfile grid = app.getDynamicGrid().getDeviceProfile(); 3270 r = grid.getHotseatRect(); 3271 if (r.contains(mTempPt[0], mTempPt[1])) { 3272 return true; 3273 } 3274 return false; 3275 } 3276 3277 void mapPointFromSelfToHotseatLayout(Hotseat hotseat, float[] xy) { 3278 mTempPt[0] = (int) xy[0]; 3279 mTempPt[1] = (int) xy[1]; 3280 mLauncher.getDragLayer().getDescendantCoordRelativeToSelf(this, mTempPt, true); 3281 mLauncher.getDragLayer().mapCoordInSelfToDescendent(hotseat.getLayout(), mTempPt); 3282 3283 xy[0] = mTempPt[0]; 3284 xy[1] = mTempPt[1]; 3285 } 3286 3287 /* 3288 * 3289 * Convert the 2D coordinate xy from this CellLayout's coordinate space to 3290 * the parent View's coordinate space. The argument xy is modified with the return result. 3291 * 3292 */ 3293 void mapPointFromChildToSelf(View v, float[] xy) { 3294 xy[0] += v.getLeft(); 3295 xy[1] += v.getTop(); 3296 } 3297 3298 static private float squaredDistance(float[] point1, float[] point2) { 3299 float distanceX = point1[0] - point2[0]; 3300 float distanceY = point2[1] - point2[1]; 3301 return distanceX * distanceX + distanceY * distanceY; 3302 } 3303 3304 /* 3305 * 3306 * This method returns the CellLayout that is currently being dragged to. In order to drag 3307 * to a CellLayout, either the touch point must be directly over the CellLayout, or as a second 3308 * strategy, we see if the dragView is overlapping any CellLayout and choose the closest one 3309 * 3310 * Return null if no CellLayout is currently being dragged over 3311 * 3312 */ 3313 private CellLayout findMatchingPageForDragOver( 3314 DragView dragView, float originX, float originY, boolean exact) { 3315 // We loop through all the screens (ie CellLayouts) and see which ones overlap 3316 // with the item being dragged and then choose the one that's closest to the touch point 3317 final int screenCount = getChildCount(); 3318 CellLayout bestMatchingScreen = null; 3319 float smallestDistSoFar = Float.MAX_VALUE; 3320 3321 for (int i = 0; i < screenCount; i++) { 3322 // The custom content screen is not a valid drag over option 3323 if (mScreenOrder.get(i) == CUSTOM_CONTENT_SCREEN_ID) { 3324 continue; 3325 } 3326 3327 CellLayout cl = (CellLayout) getChildAt(i); 3328 3329 final float[] touchXy = {originX, originY}; 3330 // Transform the touch coordinates to the CellLayout's local coordinates 3331 // If the touch point is within the bounds of the cell layout, we can return immediately 3332 cl.getMatrix().invert(mTempInverseMatrix); 3333 mapPointFromSelfToChild(cl, touchXy, mTempInverseMatrix); 3334 3335 if (touchXy[0] >= 0 && touchXy[0] <= cl.getWidth() && 3336 touchXy[1] >= 0 && touchXy[1] <= cl.getHeight()) { 3337 return cl; 3338 } 3339 3340 if (!exact) { 3341 // Get the center of the cell layout in screen coordinates 3342 final float[] cellLayoutCenter = mTempCellLayoutCenterCoordinates; 3343 cellLayoutCenter[0] = cl.getWidth()/2; 3344 cellLayoutCenter[1] = cl.getHeight()/2; 3345 mapPointFromChildToSelf(cl, cellLayoutCenter); 3346 3347 touchXy[0] = originX; 3348 touchXy[1] = originY; 3349 3350 // Calculate the distance between the center of the CellLayout 3351 // and the touch point 3352 float dist = squaredDistance(touchXy, cellLayoutCenter); 3353 3354 if (dist < smallestDistSoFar) { 3355 smallestDistSoFar = dist; 3356 bestMatchingScreen = cl; 3357 } 3358 } 3359 } 3360 return bestMatchingScreen; 3361 } 3362 3363 // This is used to compute the visual center of the dragView. This point is then 3364 // used to visualize drop locations and determine where to drop an item. The idea is that 3365 // the visual center represents the user's interpretation of where the item is, and hence 3366 // is the appropriate point to use when determining drop location. 3367 private float[] getDragViewVisualCenter(int x, int y, int xOffset, int yOffset, 3368 DragView dragView, float[] recycle) { 3369 float res[]; 3370 if (recycle == null) { 3371 res = new float[2]; 3372 } else { 3373 res = recycle; 3374 } 3375 3376 // First off, the drag view has been shifted in a way that is not represented in the 3377 // x and y values or the x/yOffsets. Here we account for that shift. 3378 x += getResources().getDimensionPixelSize(R.dimen.dragViewOffsetX); 3379 y += getResources().getDimensionPixelSize(R.dimen.dragViewOffsetY); 3380 3381 // These represent the visual top and left of drag view if a dragRect was provided. 3382 // If a dragRect was not provided, then they correspond to the actual view left and 3383 // top, as the dragRect is in that case taken to be the entire dragView. 3384 // R.dimen.dragViewOffsetY. 3385 int left = x - xOffset; 3386 int top = y - yOffset; 3387 3388 // In order to find the visual center, we shift by half the dragRect 3389 res[0] = left + dragView.getDragRegion().width() / 2; 3390 res[1] = top + dragView.getDragRegion().height() / 2; 3391 3392 return res; 3393 } 3394 3395 private boolean isDragWidget(DragObject d) { 3396 return (d.dragInfo instanceof LauncherAppWidgetInfo || 3397 d.dragInfo instanceof PendingAddWidgetInfo); 3398 } 3399 private boolean isExternalDragWidget(DragObject d) { 3400 return d.dragSource != this && isDragWidget(d); 3401 } 3402 3403 public void onDragOver(DragObject d) { 3404 // Skip drag over events while we are dragging over side pages 3405 if (mInScrollArea || mIsSwitchingState || mState == State.SMALL) return; 3406 3407 Rect r = new Rect(); 3408 CellLayout layout = null; 3409 ItemInfo item = (ItemInfo) d.dragInfo; 3410 3411 // Ensure that we have proper spans for the item that we are dropping 3412 if (item.spanX < 0 || item.spanY < 0) throw new RuntimeException("Improper spans found"); 3413 mDragViewVisualCenter = getDragViewVisualCenter(d.x, d.y, d.xOffset, d.yOffset, 3414 d.dragView, mDragViewVisualCenter); 3415 3416 final View child = (mDragInfo == null) ? null : mDragInfo.cell; 3417 // Identify whether we have dragged over a side page 3418 if (isSmall()) { 3419 if (mLauncher.getHotseat() != null && !isExternalDragWidget(d)) { 3420 if (isPointInSelfOverHotseat(d.x, d.y, r)) { 3421 layout = mLauncher.getHotseat().getLayout(); 3422 } 3423 } 3424 if (layout == null) { 3425 layout = findMatchingPageForDragOver(d.dragView, d.x, d.y, false); 3426 } 3427 if (layout != mDragTargetLayout) { 3428 setCurrentDropLayout(layout); 3429 setCurrentDragOverlappingLayout(layout); 3430 3431 boolean isInSpringLoadedMode = (mState == State.SPRING_LOADED); 3432 if (isInSpringLoadedMode) { 3433 if (mLauncher.isHotseatLayout(layout)) { 3434 mSpringLoadedDragController.cancel(); 3435 } else { 3436 mSpringLoadedDragController.setAlarm(mDragTargetLayout); 3437 } 3438 } 3439 } 3440 } else { 3441 // Test to see if we are over the hotseat otherwise just use the current page 3442 if (mLauncher.getHotseat() != null && !isDragWidget(d)) { 3443 if (isPointInSelfOverHotseat(d.x, d.y, r)) { 3444 layout = mLauncher.getHotseat().getLayout(); 3445 } 3446 } 3447 if (layout == null) { 3448 layout = getCurrentDropLayout(); 3449 } 3450 if (layout != mDragTargetLayout) { 3451 setCurrentDropLayout(layout); 3452 setCurrentDragOverlappingLayout(layout); 3453 } 3454 } 3455 3456 // Handle the drag over 3457 if (mDragTargetLayout != null) { 3458 // We want the point to be mapped to the dragTarget. 3459 if (mLauncher.isHotseatLayout(mDragTargetLayout)) { 3460 mapPointFromSelfToHotseatLayout(mLauncher.getHotseat(), mDragViewVisualCenter); 3461 } else { 3462 mapPointFromSelfToChild(mDragTargetLayout, mDragViewVisualCenter, null); 3463 } 3464 3465 ItemInfo info = (ItemInfo) d.dragInfo; 3466 3467 int minSpanX = item.spanX; 3468 int minSpanY = item.spanY; 3469 if (item.minSpanX > 0 && item.minSpanY > 0) { 3470 minSpanX = item.minSpanX; 3471 minSpanY = item.minSpanY; 3472 } 3473 3474 mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], 3475 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, 3476 mDragTargetLayout, mTargetCell); 3477 int reorderX = mTargetCell[0]; 3478 int reorderY = mTargetCell[1]; 3479 3480 setCurrentDropOverCell(mTargetCell[0], mTargetCell[1]); 3481 3482 float targetCellDistance = mDragTargetLayout.getDistanceFromCell( 3483 mDragViewVisualCenter[0], mDragViewVisualCenter[1], mTargetCell); 3484 3485 final View dragOverView = mDragTargetLayout.getChildAt(mTargetCell[0], 3486 mTargetCell[1]); 3487 3488 manageFolderFeedback(info, mDragTargetLayout, mTargetCell, 3489 targetCellDistance, dragOverView); 3490 3491 boolean nearestDropOccupied = mDragTargetLayout.isNearestDropLocationOccupied((int) 3492 mDragViewVisualCenter[0], (int) mDragViewVisualCenter[1], item.spanX, 3493 item.spanY, child, mTargetCell); 3494 3495 if (!nearestDropOccupied) { 3496 mDragTargetLayout.visualizeDropLocation(child, mDragOutline, 3497 (int) mDragViewVisualCenter[0], (int) mDragViewVisualCenter[1], 3498 mTargetCell[0], mTargetCell[1], item.spanX, item.spanY, false, 3499 d.dragView.getDragVisualizeOffset(), d.dragView.getDragRegion()); 3500 } else if ((mDragMode == DRAG_MODE_NONE || mDragMode == DRAG_MODE_REORDER) 3501 && !mReorderAlarm.alarmPending() && (mLastReorderX != reorderX || 3502 mLastReorderY != reorderY)) { 3503 3504 // Otherwise, if we aren't adding to or creating a folder and there's no pending 3505 // reorder, then we schedule a reorder 3506 ReorderAlarmListener listener = new ReorderAlarmListener(mDragViewVisualCenter, 3507 minSpanX, minSpanY, item.spanX, item.spanY, d.dragView, child); 3508 mReorderAlarm.setOnAlarmListener(listener); 3509 mReorderAlarm.setAlarm(REORDER_TIMEOUT); 3510 } 3511 3512 if (mDragMode == DRAG_MODE_CREATE_FOLDER || mDragMode == DRAG_MODE_ADD_TO_FOLDER || 3513 !nearestDropOccupied) { 3514 if (mDragTargetLayout != null) { 3515 mDragTargetLayout.revertTempState(); 3516 } 3517 } 3518 } 3519 } 3520 3521 private void manageFolderFeedback(ItemInfo info, CellLayout targetLayout, 3522 int[] targetCell, float distance, View dragOverView) { 3523 boolean userFolderPending = willCreateUserFolder(info, targetLayout, targetCell, distance, 3524 false); 3525 3526 if (mDragMode == DRAG_MODE_NONE && userFolderPending && 3527 !mFolderCreationAlarm.alarmPending()) { 3528 mFolderCreationAlarm.setOnAlarmListener(new 3529 FolderCreationAlarmListener(targetLayout, targetCell[0], targetCell[1])); 3530 mFolderCreationAlarm.setAlarm(FOLDER_CREATION_TIMEOUT); 3531 return; 3532 } 3533 3534 boolean willAddToFolder = 3535 willAddToExistingUserFolder(info, targetLayout, targetCell, distance); 3536 3537 if (willAddToFolder && mDragMode == DRAG_MODE_NONE) { 3538 mDragOverFolderIcon = ((FolderIcon) dragOverView); 3539 mDragOverFolderIcon.onDragEnter(info); 3540 if (targetLayout != null) { 3541 targetLayout.clearDragOutlines(); 3542 } 3543 setDragMode(DRAG_MODE_ADD_TO_FOLDER); 3544 return; 3545 } 3546 3547 if (mDragMode == DRAG_MODE_ADD_TO_FOLDER && !willAddToFolder) { 3548 setDragMode(DRAG_MODE_NONE); 3549 } 3550 if (mDragMode == DRAG_MODE_CREATE_FOLDER && !userFolderPending) { 3551 setDragMode(DRAG_MODE_NONE); 3552 } 3553 3554 return; 3555 } 3556 3557 class FolderCreationAlarmListener implements OnAlarmListener { 3558 CellLayout layout; 3559 int cellX; 3560 int cellY; 3561 3562 public FolderCreationAlarmListener(CellLayout layout, int cellX, int cellY) { 3563 this.layout = layout; 3564 this.cellX = cellX; 3565 this.cellY = cellY; 3566 } 3567 3568 public void onAlarm(Alarm alarm) { 3569 if (mDragFolderRingAnimator != null) { 3570 // This shouldn't happen ever, but just in case, make sure we clean up the mess. 3571 mDragFolderRingAnimator.animateToNaturalState(); 3572 } 3573 mDragFolderRingAnimator = new FolderRingAnimator(mLauncher, null); 3574 mDragFolderRingAnimator.setCell(cellX, cellY); 3575 mDragFolderRingAnimator.setCellLayout(layout); 3576 mDragFolderRingAnimator.animateToAcceptState(); 3577 layout.showFolderAccept(mDragFolderRingAnimator); 3578 layout.clearDragOutlines(); 3579 setDragMode(DRAG_MODE_CREATE_FOLDER); 3580 } 3581 } 3582 3583 class ReorderAlarmListener implements OnAlarmListener { 3584 float[] dragViewCenter; 3585 int minSpanX, minSpanY, spanX, spanY; 3586 DragView dragView; 3587 View child; 3588 3589 public ReorderAlarmListener(float[] dragViewCenter, int minSpanX, int minSpanY, int spanX, 3590 int spanY, DragView dragView, View child) { 3591 this.dragViewCenter = dragViewCenter; 3592 this.minSpanX = minSpanX; 3593 this.minSpanY = minSpanY; 3594 this.spanX = spanX; 3595 this.spanY = spanY; 3596 this.child = child; 3597 this.dragView = dragView; 3598 } 3599 3600 public void onAlarm(Alarm alarm) { 3601 int[] resultSpan = new int[2]; 3602 mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], 3603 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, mDragTargetLayout, 3604 mTargetCell); 3605 mLastReorderX = mTargetCell[0]; 3606 mLastReorderY = mTargetCell[1]; 3607 3608 mTargetCell = mDragTargetLayout.createArea((int) mDragViewVisualCenter[0], 3609 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, spanX, spanY, 3610 child, mTargetCell, resultSpan, CellLayout.MODE_DRAG_OVER); 3611 3612 if (mTargetCell[0] < 0 || mTargetCell[1] < 0) { 3613 mDragTargetLayout.revertTempState(); 3614 } else { 3615 setDragMode(DRAG_MODE_REORDER); 3616 } 3617 3618 boolean resize = resultSpan[0] != spanX || resultSpan[1] != spanY; 3619 mDragTargetLayout.visualizeDropLocation(child, mDragOutline, 3620 (int) mDragViewVisualCenter[0], (int) mDragViewVisualCenter[1], 3621 mTargetCell[0], mTargetCell[1], resultSpan[0], resultSpan[1], resize, 3622 dragView.getDragVisualizeOffset(), dragView.getDragRegion()); 3623 } 3624 } 3625 3626 @Override 3627 public void getHitRectRelativeToDragLayer(Rect outRect) { 3628 // We want the workspace to have the whole area of the display (it will find the correct 3629 // cell layout to drop to in the existing drag/drop logic. 3630 mLauncher.getDragLayer().getDescendantRectRelativeToSelf(this, outRect); 3631 } 3632 3633 /** 3634 * Add the item specified by dragInfo to the given layout. 3635 * @return true if successful 3636 */ 3637 public boolean addExternalItemToScreen(ItemInfo dragInfo, CellLayout layout) { 3638 if (layout.findCellForSpan(mTempEstimate, dragInfo.spanX, dragInfo.spanY)) { 3639 onDropExternal(dragInfo.dropPos, (ItemInfo) dragInfo, (CellLayout) layout, false); 3640 return true; 3641 } 3642 mLauncher.showOutOfSpaceMessage(mLauncher.isHotseatLayout(layout)); 3643 return false; 3644 } 3645 3646 private void onDropExternal(int[] touchXY, Object dragInfo, 3647 CellLayout cellLayout, boolean insertAtFirst) { 3648 onDropExternal(touchXY, dragInfo, cellLayout, insertAtFirst, null); 3649 } 3650 3651 /** 3652 * Drop an item that didn't originate on one of the workspace screens. 3653 * It may have come from Launcher (e.g. from all apps or customize), or it may have 3654 * come from another app altogether. 3655 * 3656 * NOTE: This can also be called when we are outside of a drag event, when we want 3657 * to add an item to one of the workspace screens. 3658 */ 3659 private void onDropExternal(final int[] touchXY, final Object dragInfo, 3660 final CellLayout cellLayout, boolean insertAtFirst, DragObject d) { 3661 final Runnable exitSpringLoadedRunnable = new Runnable() { 3662 @Override 3663 public void run() { 3664 removeExtraEmptyScreen(false, new Runnable() { 3665 @Override 3666 public void run() { 3667 mLauncher.exitSpringLoadedDragModeDelayed(true, 3668 Launcher.EXIT_SPRINGLOADED_MODE_SHORT_TIMEOUT, null); 3669 } 3670 }); 3671 } 3672 }; 3673 3674 ItemInfo info = (ItemInfo) dragInfo; 3675 int spanX = info.spanX; 3676 int spanY = info.spanY; 3677 if (mDragInfo != null) { 3678 spanX = mDragInfo.spanX; 3679 spanY = mDragInfo.spanY; 3680 } 3681 3682 final long container = mLauncher.isHotseatLayout(cellLayout) ? 3683 LauncherSettings.Favorites.CONTAINER_HOTSEAT : 3684 LauncherSettings.Favorites.CONTAINER_DESKTOP; 3685 final long screenId = getIdForScreen(cellLayout); 3686 if (!mLauncher.isHotseatLayout(cellLayout) 3687 && screenId != getScreenIdForPageIndex(mCurrentPage) 3688 && mState != State.SPRING_LOADED) { 3689 snapToScreenId(screenId, null); 3690 } 3691 3692 if (info instanceof PendingAddItemInfo) { 3693 final PendingAddItemInfo pendingInfo = (PendingAddItemInfo) dragInfo; 3694 3695 boolean findNearestVacantCell = true; 3696 if (pendingInfo.itemType == LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT) { 3697 mTargetCell = findNearestArea((int) touchXY[0], (int) touchXY[1], spanX, spanY, 3698 cellLayout, mTargetCell); 3699 float distance = cellLayout.getDistanceFromCell(mDragViewVisualCenter[0], 3700 mDragViewVisualCenter[1], mTargetCell); 3701 if (willCreateUserFolder((ItemInfo) d.dragInfo, cellLayout, mTargetCell, 3702 distance, true) || willAddToExistingUserFolder((ItemInfo) d.dragInfo, 3703 cellLayout, mTargetCell, distance)) { 3704 findNearestVacantCell = false; 3705 } 3706 } 3707 3708 final ItemInfo item = (ItemInfo) d.dragInfo; 3709 boolean updateWidgetSize = false; 3710 if (findNearestVacantCell) { 3711 int minSpanX = item.spanX; 3712 int minSpanY = item.spanY; 3713 if (item.minSpanX > 0 && item.minSpanY > 0) { 3714 minSpanX = item.minSpanX; 3715 minSpanY = item.minSpanY; 3716 } 3717 int[] resultSpan = new int[2]; 3718 mTargetCell = cellLayout.createArea((int) mDragViewVisualCenter[0], 3719 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, info.spanX, info.spanY, 3720 null, mTargetCell, resultSpan, CellLayout.MODE_ON_DROP_EXTERNAL); 3721 3722 if (resultSpan[0] != item.spanX || resultSpan[1] != item.spanY) { 3723 updateWidgetSize = true; 3724 } 3725 item.spanX = resultSpan[0]; 3726 item.spanY = resultSpan[1]; 3727 } 3728 3729 Runnable onAnimationCompleteRunnable = new Runnable() { 3730 @Override 3731 public void run() { 3732 // When dragging and dropping from customization tray, we deal with creating 3733 // widgets/shortcuts/folders in a slightly different way 3734 switch (pendingInfo.itemType) { 3735 case LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET: 3736 int span[] = new int[2]; 3737 span[0] = item.spanX; 3738 span[1] = item.spanY; 3739 mLauncher.addAppWidgetFromDrop((PendingAddWidgetInfo) pendingInfo, 3740 container, screenId, mTargetCell, span, null); 3741 break; 3742 case LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT: 3743 mLauncher.processShortcutFromDrop(pendingInfo.componentName, 3744 container, screenId, mTargetCell, null); 3745 break; 3746 default: 3747 throw new IllegalStateException("Unknown item type: " + 3748 pendingInfo.itemType); 3749 } 3750 } 3751 }; 3752 View finalView = pendingInfo.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET 3753 ? ((PendingAddWidgetInfo) pendingInfo).boundWidget : null; 3754 3755 if (finalView instanceof AppWidgetHostView && updateWidgetSize) { 3756 AppWidgetHostView awhv = (AppWidgetHostView) finalView; 3757 AppWidgetResizeFrame.updateWidgetSizeRanges(awhv, mLauncher, item.spanX, 3758 item.spanY); 3759 } 3760 3761 int animationStyle = ANIMATE_INTO_POSITION_AND_DISAPPEAR; 3762 if (pendingInfo.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET && 3763 ((PendingAddWidgetInfo) pendingInfo).info.configure != null) { 3764 animationStyle = ANIMATE_INTO_POSITION_AND_REMAIN; 3765 } 3766 animateWidgetDrop(info, cellLayout, d.dragView, onAnimationCompleteRunnable, 3767 animationStyle, finalView, true); 3768 } else { 3769 // This is for other drag/drop cases, like dragging from All Apps 3770 View view = null; 3771 3772 switch (info.itemType) { 3773 case LauncherSettings.Favorites.ITEM_TYPE_APPLICATION: 3774 case LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT: 3775 if (info.container == NO_ID && info instanceof AppInfo) { 3776 // Came from all apps -- make a copy 3777 info = new ShortcutInfo((AppInfo) info); 3778 } 3779 view = mLauncher.createShortcut(R.layout.application, cellLayout, 3780 (ShortcutInfo) info); 3781 break; 3782 case LauncherSettings.Favorites.ITEM_TYPE_FOLDER: 3783 view = FolderIcon.fromXml(R.layout.folder_icon, mLauncher, cellLayout, 3784 (FolderInfo) info, mIconCache); 3785 break; 3786 default: 3787 throw new IllegalStateException("Unknown item type: " + info.itemType); 3788 } 3789 3790 // First we find the cell nearest to point at which the item is 3791 // dropped, without any consideration to whether there is an item there. 3792 if (touchXY != null) { 3793 mTargetCell = findNearestArea((int) touchXY[0], (int) touchXY[1], spanX, spanY, 3794 cellLayout, mTargetCell); 3795 float distance = cellLayout.getDistanceFromCell(mDragViewVisualCenter[0], 3796 mDragViewVisualCenter[1], mTargetCell); 3797 d.postAnimationRunnable = exitSpringLoadedRunnable; 3798 if (createUserFolderIfNecessary(view, container, cellLayout, mTargetCell, distance, 3799 true, d.dragView, d.postAnimationRunnable)) { 3800 return; 3801 } 3802 if (addToExistingFolderIfNecessary(view, cellLayout, mTargetCell, distance, d, 3803 true)) { 3804 return; 3805 } 3806 } 3807 3808 if (touchXY != null) { 3809 // when dragging and dropping, just find the closest free spot 3810 mTargetCell = cellLayout.createArea((int) mDragViewVisualCenter[0], 3811 (int) mDragViewVisualCenter[1], 1, 1, 1, 1, 3812 null, mTargetCell, null, CellLayout.MODE_ON_DROP_EXTERNAL); 3813 } else { 3814 cellLayout.findCellForSpan(mTargetCell, 1, 1); 3815 } 3816 addInScreen(view, container, screenId, mTargetCell[0], mTargetCell[1], info.spanX, 3817 info.spanY, insertAtFirst); 3818 cellLayout.onDropChild(view); 3819 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) view.getLayoutParams(); 3820 cellLayout.getShortcutsAndWidgets().measureChild(view); 3821 3822 LauncherModel.addOrMoveItemInDatabase(mLauncher, info, container, screenId, 3823 lp.cellX, lp.cellY); 3824 3825 if (d.dragView != null) { 3826 // We wrap the animation call in the temporary set and reset of the current 3827 // cellLayout to its final transform -- this means we animate the drag view to 3828 // the correct final location. 3829 setFinalTransitionTransform(cellLayout); 3830 mLauncher.getDragLayer().animateViewIntoPosition(d.dragView, view, 3831 exitSpringLoadedRunnable, this); 3832 resetTransitionTransform(cellLayout); 3833 } 3834 } 3835 } 3836 3837 public Bitmap createWidgetBitmap(ItemInfo widgetInfo, View layout) { 3838 int[] unScaledSize = mLauncher.getWorkspace().estimateItemSize(widgetInfo.spanX, 3839 widgetInfo.spanY, widgetInfo, false); 3840 int visibility = layout.getVisibility(); 3841 layout.setVisibility(VISIBLE); 3842 3843 int width = MeasureSpec.makeMeasureSpec(unScaledSize[0], MeasureSpec.EXACTLY); 3844 int height = MeasureSpec.makeMeasureSpec(unScaledSize[1], MeasureSpec.EXACTLY); 3845 Bitmap b = Bitmap.createBitmap(unScaledSize[0], unScaledSize[1], 3846 Bitmap.Config.ARGB_8888); 3847 Canvas c = new Canvas(b); 3848 3849 layout.measure(width, height); 3850 layout.layout(0, 0, unScaledSize[0], unScaledSize[1]); 3851 layout.draw(c); 3852 c.setBitmap(null); 3853 layout.setVisibility(visibility); 3854 return b; 3855 } 3856 3857 private void getFinalPositionForDropAnimation(int[] loc, float[] scaleXY, 3858 DragView dragView, CellLayout layout, ItemInfo info, int[] targetCell, 3859 boolean external, boolean scale) { 3860 // Now we animate the dragView, (ie. the widget or shortcut preview) into its final 3861 // location and size on the home screen. 3862 int spanX = info.spanX; 3863 int spanY = info.spanY; 3864 3865 Rect r = estimateItemPosition(layout, info, targetCell[0], targetCell[1], spanX, spanY); 3866 loc[0] = r.left; 3867 loc[1] = r.top; 3868 3869 setFinalTransitionTransform(layout); 3870 float cellLayoutScale = 3871 mLauncher.getDragLayer().getDescendantCoordRelativeToSelf(layout, loc, true); 3872 resetTransitionTransform(layout); 3873 3874 float dragViewScaleX; 3875 float dragViewScaleY; 3876 if (scale) { 3877 dragViewScaleX = (1.0f * r.width()) / dragView.getMeasuredWidth(); 3878 dragViewScaleY = (1.0f * r.height()) / dragView.getMeasuredHeight(); 3879 } else { 3880 dragViewScaleX = 1f; 3881 dragViewScaleY = 1f; 3882 } 3883 3884 // The animation will scale the dragView about its center, so we need to center about 3885 // the final location. 3886 loc[0] -= (dragView.getMeasuredWidth() - cellLayoutScale * r.width()) / 2; 3887 loc[1] -= (dragView.getMeasuredHeight() - cellLayoutScale * r.height()) / 2; 3888 3889 scaleXY[0] = dragViewScaleX * cellLayoutScale; 3890 scaleXY[1] = dragViewScaleY * cellLayoutScale; 3891 } 3892 3893 public void animateWidgetDrop(ItemInfo info, CellLayout cellLayout, DragView dragView, 3894 final Runnable onCompleteRunnable, int animationType, final View finalView, 3895 boolean external) { 3896 Rect from = new Rect(); 3897 mLauncher.getDragLayer().getViewRectRelativeToSelf(dragView, from); 3898 3899 int[] finalPos = new int[2]; 3900 float scaleXY[] = new float[2]; 3901 boolean scalePreview = !(info instanceof PendingAddShortcutInfo); 3902 getFinalPositionForDropAnimation(finalPos, scaleXY, dragView, cellLayout, info, mTargetCell, 3903 external, scalePreview); 3904 3905 Resources res = mLauncher.getResources(); 3906 final int duration = res.getInteger(R.integer.config_dropAnimMaxDuration) - 200; 3907 3908 // In the case where we've prebound the widget, we remove it from the DragLayer 3909 if (finalView instanceof AppWidgetHostView && external) { 3910 Log.d(TAG, "6557954 Animate widget drop, final view is appWidgetHostView"); 3911 mLauncher.getDragLayer().removeView(finalView); 3912 } 3913 if ((animationType == ANIMATE_INTO_POSITION_AND_RESIZE || external) && finalView != null) { 3914 Bitmap crossFadeBitmap = createWidgetBitmap(info, finalView); 3915 dragView.setCrossFadeBitmap(crossFadeBitmap); 3916 dragView.crossFade((int) (duration * 0.8f)); 3917 } else if (info.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET && external) { 3918 scaleXY[0] = scaleXY[1] = Math.min(scaleXY[0], scaleXY[1]); 3919 } 3920 3921 DragLayer dragLayer = mLauncher.getDragLayer(); 3922 if (animationType == CANCEL_TWO_STAGE_WIDGET_DROP_ANIMATION) { 3923 mLauncher.getDragLayer().animateViewIntoPosition(dragView, finalPos, 0f, 0.1f, 0.1f, 3924 DragLayer.ANIMATION_END_DISAPPEAR, onCompleteRunnable, duration); 3925 } else { 3926 int endStyle; 3927 if (animationType == ANIMATE_INTO_POSITION_AND_REMAIN) { 3928 endStyle = DragLayer.ANIMATION_END_REMAIN_VISIBLE; 3929 } else { 3930 endStyle = DragLayer.ANIMATION_END_DISAPPEAR;; 3931 } 3932 3933 Runnable onComplete = new Runnable() { 3934 @Override 3935 public void run() { 3936 if (finalView != null) { 3937 finalView.setVisibility(VISIBLE); 3938 } 3939 if (onCompleteRunnable != null) { 3940 onCompleteRunnable.run(); 3941 } 3942 } 3943 }; 3944 dragLayer.animateViewIntoPosition(dragView, from.left, from.top, finalPos[0], 3945 finalPos[1], 1, 1, 1, scaleXY[0], scaleXY[1], onComplete, endStyle, 3946 duration, this); 3947 } 3948 } 3949 3950 public void setFinalTransitionTransform(CellLayout layout) { 3951 if (isSwitchingState()) { 3952 mCurrentScale = getScaleX(); 3953 setScaleX(mNewScale); 3954 setScaleY(mNewScale); 3955 } 3956 } 3957 public void resetTransitionTransform(CellLayout layout) { 3958 if (isSwitchingState()) { 3959 setScaleX(mCurrentScale); 3960 setScaleY(mCurrentScale); 3961 } 3962 } 3963 3964 /** 3965 * Return the current {@link CellLayout}, correctly picking the destination 3966 * screen while a scroll is in progress. 3967 */ 3968 public CellLayout getCurrentDropLayout() { 3969 return (CellLayout) getChildAt(getNextPage()); 3970 } 3971 3972 /** 3973 * Return the current CellInfo describing our current drag; this method exists 3974 * so that Launcher can sync this object with the correct info when the activity is created/ 3975 * destroyed 3976 * 3977 */ 3978 public CellLayout.CellInfo getDragInfo() { 3979 return mDragInfo; 3980 } 3981 3982 public int getCurrentPageOffsetFromCustomContent() { 3983 return getNextPage() - numCustomPages(); 3984 } 3985 3986 /** 3987 * Calculate the nearest cell where the given object would be dropped. 3988 * 3989 * pixelX and pixelY should be in the coordinate system of layout 3990 */ 3991 private int[] findNearestArea(int pixelX, int pixelY, 3992 int spanX, int spanY, CellLayout layout, int[] recycle) { 3993 return layout.findNearestArea( 3994 pixelX, pixelY, spanX, spanY, recycle); 3995 } 3996 3997 void setup(DragController dragController) { 3998 mSpringLoadedDragController = new SpringLoadedDragController(mLauncher); 3999 mDragController = dragController; 4000 4001 // hardware layers on children are enabled on startup, but should be disabled until 4002 // needed 4003 updateChildrenLayersEnabled(false); 4004 setWallpaperDimension(); 4005 } 4006 4007 /** 4008 * Called at the end of a drag which originated on the workspace. 4009 */ 4010 public void onDropCompleted(final View target, final DragObject d, 4011 final boolean isFlingToDelete, final boolean success) { 4012 if (mDeferDropAfterUninstall) { 4013 mDeferredAction = new Runnable() { 4014 public void run() { 4015 onDropCompleted(target, d, isFlingToDelete, success); 4016 mDeferredAction = null; 4017 } 4018 }; 4019 return; 4020 } 4021 4022 boolean beingCalledAfterUninstall = mDeferredAction != null; 4023 4024 if (success && !(beingCalledAfterUninstall && !mUninstallSuccessful)) { 4025 if (target != this && mDragInfo != null) { 4026 CellLayout parentCell = getParentCellLayoutForView(mDragInfo.cell); 4027 if (parentCell != null) { 4028 parentCell.removeView(mDragInfo.cell); 4029 } 4030 if (mDragInfo.cell instanceof DropTarget) { 4031 mDragController.removeDropTarget((DropTarget) mDragInfo.cell); 4032 } 4033 // If we move the item to anything not on the Workspace, check if any empty 4034 // screens need to be removed. If we dropped back on the workspace, this will 4035 // be done post drop animation. 4036 removeExtraEmptyScreen(true, null, 0, true); 4037 } 4038 } else if (mDragInfo != null) { 4039 CellLayout cellLayout; 4040 if (mLauncher.isHotseatLayout(target)) { 4041 cellLayout = mLauncher.getHotseat().getLayout(); 4042 } else { 4043 cellLayout = getScreenWithId(mDragInfo.screenId); 4044 } 4045 cellLayout.onDropChild(mDragInfo.cell); 4046 } 4047 if ((d.cancelled || (beingCalledAfterUninstall && !mUninstallSuccessful)) 4048 && mDragInfo.cell != null) { 4049 mDragInfo.cell.setVisibility(VISIBLE); 4050 } 4051 mDragOutline = null; 4052 mDragInfo = null; 4053 } 4054 4055 public void deferCompleteDropAfterUninstallActivity() { 4056 mDeferDropAfterUninstall = true; 4057 } 4058 4059 /// maybe move this into a smaller part 4060 public void onUninstallActivityReturned(boolean success) { 4061 mDeferDropAfterUninstall = false; 4062 mUninstallSuccessful = success; 4063 if (mDeferredAction != null) { 4064 mDeferredAction.run(); 4065 } 4066 } 4067 4068 void updateItemLocationsInDatabase(CellLayout cl) { 4069 int count = cl.getShortcutsAndWidgets().getChildCount(); 4070 4071 long screenId = getIdForScreen(cl); 4072 int container = Favorites.CONTAINER_DESKTOP; 4073 4074 if (mLauncher.isHotseatLayout(cl)) { 4075 screenId = -1; 4076 container = Favorites.CONTAINER_HOTSEAT; 4077 } 4078 4079 for (int i = 0; i < count; i++) { 4080 View v = cl.getShortcutsAndWidgets().getChildAt(i); 4081 ItemInfo info = (ItemInfo) v.getTag(); 4082 // Null check required as the AllApps button doesn't have an item info 4083 if (info != null && info.requiresDbUpdate) { 4084 info.requiresDbUpdate = false; 4085 LauncherModel.modifyItemInDatabase(mLauncher, info, container, screenId, info.cellX, 4086 info.cellY, info.spanX, info.spanY); 4087 } 4088 } 4089 } 4090 4091 ArrayList<ComponentName> getUniqueComponents(boolean stripDuplicates, ArrayList<ComponentName> duplicates) { 4092 ArrayList<ComponentName> uniqueIntents = new ArrayList<ComponentName>(); 4093 getUniqueIntents((CellLayout) mLauncher.getHotseat().getLayout(), uniqueIntents, duplicates, false); 4094 int count = getChildCount(); 4095 for (int i = 0; i < count; i++) { 4096 CellLayout cl = (CellLayout) getChildAt(i); 4097 getUniqueIntents(cl, uniqueIntents, duplicates, false); 4098 } 4099 return uniqueIntents; 4100 } 4101 4102 void getUniqueIntents(CellLayout cl, ArrayList<ComponentName> uniqueIntents, 4103 ArrayList<ComponentName> duplicates, boolean stripDuplicates) { 4104 int count = cl.getShortcutsAndWidgets().getChildCount(); 4105 4106 ArrayList<View> children = new ArrayList<View>(); 4107 for (int i = 0; i < count; i++) { 4108 View v = cl.getShortcutsAndWidgets().getChildAt(i); 4109 children.add(v); 4110 } 4111 4112 for (int i = 0; i < count; i++) { 4113 View v = children.get(i); 4114 ItemInfo info = (ItemInfo) v.getTag(); 4115 // Null check required as the AllApps button doesn't have an item info 4116 if (info instanceof ShortcutInfo) { 4117 ShortcutInfo si = (ShortcutInfo) info; 4118 ComponentName cn = si.intent.getComponent(); 4119 4120 Uri dataUri = si.intent.getData(); 4121 // If dataUri is not null / empty or if this component isn't one that would 4122 // have previously showed up in the AllApps list, then this is a widget-type 4123 // shortcut, so ignore it. 4124 if (dataUri != null && !dataUri.equals(Uri.EMPTY)) { 4125 continue; 4126 } 4127 4128 if (!uniqueIntents.contains(cn)) { 4129 uniqueIntents.add(cn); 4130 } else { 4131 if (stripDuplicates) { 4132 cl.removeViewInLayout(v); 4133 LauncherModel.deleteItemFromDatabase(mLauncher, si); 4134 } 4135 if (duplicates != null) { 4136 duplicates.add(cn); 4137 } 4138 } 4139 } 4140 if (v instanceof FolderIcon) { 4141 FolderIcon fi = (FolderIcon) v; 4142 ArrayList<View> items = fi.getFolder().getItemsInReadingOrder(); 4143 for (int j = 0; j < items.size(); j++) { 4144 if (items.get(j).getTag() instanceof ShortcutInfo) { 4145 ShortcutInfo si = (ShortcutInfo) items.get(j).getTag(); 4146 ComponentName cn = si.intent.getComponent(); 4147 4148 Uri dataUri = si.intent.getData(); 4149 // If dataUri is not null / empty or if this component isn't one that would 4150 // have previously showed up in the AllApps list, then this is a widget-type 4151 // shortcut, so ignore it. 4152 if (dataUri != null && !dataUri.equals(Uri.EMPTY)) { 4153 continue; 4154 } 4155 4156 if (!uniqueIntents.contains(cn)) { 4157 uniqueIntents.add(cn); 4158 } else { 4159 if (stripDuplicates) { 4160 fi.getFolderInfo().remove(si); 4161 LauncherModel.deleteItemFromDatabase(mLauncher, si); 4162 } 4163 if (duplicates != null) { 4164 duplicates.add(cn); 4165 } 4166 } 4167 } 4168 } 4169 } 4170 } 4171 } 4172 4173 void saveWorkspaceToDb() { 4174 saveWorkspaceScreenToDb((CellLayout) mLauncher.getHotseat().getLayout()); 4175 int count = getChildCount(); 4176 for (int i = 0; i < count; i++) { 4177 CellLayout cl = (CellLayout) getChildAt(i); 4178 saveWorkspaceScreenToDb(cl); 4179 } 4180 } 4181 4182 void saveWorkspaceScreenToDb(CellLayout cl) { 4183 int count = cl.getShortcutsAndWidgets().getChildCount(); 4184 4185 long screenId = getIdForScreen(cl); 4186 int container = Favorites.CONTAINER_DESKTOP; 4187 4188 Hotseat hotseat = mLauncher.getHotseat(); 4189 if (mLauncher.isHotseatLayout(cl)) { 4190 screenId = -1; 4191 container = Favorites.CONTAINER_HOTSEAT; 4192 } 4193 4194 for (int i = 0; i < count; i++) { 4195 View v = cl.getShortcutsAndWidgets().getChildAt(i); 4196 ItemInfo info = (ItemInfo) v.getTag(); 4197 // Null check required as the AllApps button doesn't have an item info 4198 if (info != null) { 4199 int cellX = info.cellX; 4200 int cellY = info.cellY; 4201 if (container == Favorites.CONTAINER_HOTSEAT) { 4202 cellX = hotseat.getCellXFromOrder((int) info.screenId); 4203 cellY = hotseat.getCellYFromOrder((int) info.screenId); 4204 } 4205 LauncherModel.addItemToDatabase(mLauncher, info, container, screenId, cellX, 4206 cellY, false); 4207 } 4208 if (v instanceof FolderIcon) { 4209 FolderIcon fi = (FolderIcon) v; 4210 fi.getFolder().addItemLocationsInDatabase(); 4211 } 4212 } 4213 } 4214 4215 @Override 4216 public float getIntrinsicIconScaleFactor() { 4217 return 1f; 4218 } 4219 4220 @Override 4221 public boolean supportsFlingToDelete() { 4222 return true; 4223 } 4224 4225 @Override 4226 public void onFlingToDelete(DragObject d, int x, int y, PointF vec) { 4227 // Do nothing 4228 } 4229 4230 @Override 4231 public void onFlingToDeleteCompleted() { 4232 // Do nothing 4233 } 4234 4235 public boolean isDropEnabled() { 4236 return true; 4237 } 4238 4239 @Override 4240 protected void onRestoreInstanceState(Parcelable state) { 4241 super.onRestoreInstanceState(state); 4242 Launcher.setScreen(mCurrentPage); 4243 } 4244 4245 @Override 4246 protected void dispatchRestoreInstanceState(SparseArray<Parcelable> container) { 4247 // We don't dispatch restoreInstanceState to our children using this code path. 4248 // Some pages will be restored immediately as their items are bound immediately, and 4249 // others we will need to wait until after their items are bound. 4250 mSavedStates = container; 4251 } 4252 4253 public void restoreInstanceStateForChild(int child) { 4254 if (mSavedStates != null) { 4255 mRestoredPages.add(child); 4256 CellLayout cl = (CellLayout) getChildAt(child); 4257 if (cl != null) { 4258 cl.restoreInstanceState(mSavedStates); 4259 } 4260 } 4261 } 4262 4263 public void restoreInstanceStateForRemainingPages() { 4264 int count = getChildCount(); 4265 for (int i = 0; i < count; i++) { 4266 if (!mRestoredPages.contains(i)) { 4267 restoreInstanceStateForChild(i); 4268 } 4269 } 4270 mRestoredPages.clear(); 4271 mSavedStates = null; 4272 } 4273 4274 @Override 4275 public void scrollLeft() { 4276 if (!isSmall() && !mIsSwitchingState) { 4277 super.scrollLeft(); 4278 } 4279 Folder openFolder = getOpenFolder(); 4280 if (openFolder != null) { 4281 openFolder.completeDragExit(); 4282 } 4283 } 4284 4285 @Override 4286 public void scrollRight() { 4287 if (!isSmall() && !mIsSwitchingState) { 4288 super.scrollRight(); 4289 } 4290 Folder openFolder = getOpenFolder(); 4291 if (openFolder != null) { 4292 openFolder.completeDragExit(); 4293 } 4294 } 4295 4296 @Override 4297 public boolean onEnterScrollArea(int x, int y, int direction) { 4298 // Ignore the scroll area if we are dragging over the hot seat 4299 boolean isPortrait = !LauncherAppState.isScreenLandscape(getContext()); 4300 if (mLauncher.getHotseat() != null && isPortrait) { 4301 Rect r = new Rect(); 4302 mLauncher.getHotseat().getHitRect(r); 4303 if (r.contains(x, y)) { 4304 return false; 4305 } 4306 } 4307 4308 boolean result = false; 4309 if (!isSmall() && !mIsSwitchingState && getOpenFolder() == null) { 4310 mInScrollArea = true; 4311 4312 final int page = getNextPage() + 4313 (direction == DragController.SCROLL_LEFT ? -1 : 1); 4314 // We always want to exit the current layout to ensure parity of enter / exit 4315 setCurrentDropLayout(null); 4316 4317 if (0 <= page && page < getChildCount()) { 4318 // Ensure that we are not dragging over to the custom content screen 4319 if (getScreenIdForPageIndex(page) == CUSTOM_CONTENT_SCREEN_ID) { 4320 return false; 4321 } 4322 4323 CellLayout layout = (CellLayout) getChildAt(page); 4324 setCurrentDragOverlappingLayout(layout); 4325 4326 // Workspace is responsible for drawing the edge glow on adjacent pages, 4327 // so we need to redraw the workspace when this may have changed. 4328 invalidate(); 4329 result = true; 4330 } 4331 } 4332 return result; 4333 } 4334 4335 @Override 4336 public boolean onExitScrollArea() { 4337 boolean result = false; 4338 if (mInScrollArea) { 4339 invalidate(); 4340 CellLayout layout = getCurrentDropLayout(); 4341 setCurrentDropLayout(layout); 4342 setCurrentDragOverlappingLayout(layout); 4343 4344 result = true; 4345 mInScrollArea = false; 4346 } 4347 return result; 4348 } 4349 4350 private void onResetScrollArea() { 4351 setCurrentDragOverlappingLayout(null); 4352 mInScrollArea = false; 4353 } 4354 4355 /** 4356 * Returns a specific CellLayout 4357 */ 4358 CellLayout getParentCellLayoutForView(View v) { 4359 ArrayList<CellLayout> layouts = getWorkspaceAndHotseatCellLayouts(); 4360 for (CellLayout layout : layouts) { 4361 if (layout.getShortcutsAndWidgets().indexOfChild(v) > -1) { 4362 return layout; 4363 } 4364 } 4365 return null; 4366 } 4367 4368 /** 4369 * Returns a list of all the CellLayouts in the workspace. 4370 */ 4371 ArrayList<CellLayout> getWorkspaceAndHotseatCellLayouts() { 4372 ArrayList<CellLayout> layouts = new ArrayList<CellLayout>(); 4373 int screenCount = getChildCount(); 4374 for (int screen = 0; screen < screenCount; screen++) { 4375 layouts.add(((CellLayout) getChildAt(screen))); 4376 } 4377 if (mLauncher.getHotseat() != null) { 4378 layouts.add(mLauncher.getHotseat().getLayout()); 4379 } 4380 return layouts; 4381 } 4382 4383 /** 4384 * We should only use this to search for specific children. Do not use this method to modify 4385 * ShortcutsAndWidgetsContainer directly. Includes ShortcutAndWidgetContainers from 4386 * the hotseat and workspace pages 4387 */ 4388 ArrayList<ShortcutAndWidgetContainer> getAllShortcutAndWidgetContainers() { 4389 ArrayList<ShortcutAndWidgetContainer> childrenLayouts = 4390 new ArrayList<ShortcutAndWidgetContainer>(); 4391 int screenCount = getChildCount(); 4392 for (int screen = 0; screen < screenCount; screen++) { 4393 childrenLayouts.add(((CellLayout) getChildAt(screen)).getShortcutsAndWidgets()); 4394 } 4395 if (mLauncher.getHotseat() != null) { 4396 childrenLayouts.add(mLauncher.getHotseat().getLayout().getShortcutsAndWidgets()); 4397 } 4398 return childrenLayouts; 4399 } 4400 4401 public Folder getFolderForTag(Object tag) { 4402 ArrayList<ShortcutAndWidgetContainer> childrenLayouts = 4403 getAllShortcutAndWidgetContainers(); 4404 for (ShortcutAndWidgetContainer layout: childrenLayouts) { 4405 int count = layout.getChildCount(); 4406 for (int i = 0; i < count; i++) { 4407 View child = layout.getChildAt(i); 4408 if (child instanceof Folder) { 4409 Folder f = (Folder) child; 4410 if (f.getInfo() == tag && f.getInfo().opened) { 4411 return f; 4412 } 4413 } 4414 } 4415 } 4416 return null; 4417 } 4418 4419 public View getViewForTag(Object tag) { 4420 ArrayList<ShortcutAndWidgetContainer> childrenLayouts = 4421 getAllShortcutAndWidgetContainers(); 4422 for (ShortcutAndWidgetContainer layout: childrenLayouts) { 4423 int count = layout.getChildCount(); 4424 for (int i = 0; i < count; i++) { 4425 View child = layout.getChildAt(i); 4426 if (child.getTag() == tag) { 4427 return child; 4428 } 4429 } 4430 } 4431 return null; 4432 } 4433 4434 void clearDropTargets() { 4435 ArrayList<ShortcutAndWidgetContainer> childrenLayouts = 4436 getAllShortcutAndWidgetContainers(); 4437 for (ShortcutAndWidgetContainer layout: childrenLayouts) { 4438 int childCount = layout.getChildCount(); 4439 for (int j = 0; j < childCount; j++) { 4440 View v = layout.getChildAt(j); 4441 if (v instanceof DropTarget) { 4442 mDragController.removeDropTarget((DropTarget) v); 4443 } 4444 } 4445 } 4446 } 4447 4448 // Removes ALL items that match a given package name, this is usually called when a package 4449 // has been removed and we want to remove all components (widgets, shortcuts, apps) that 4450 // belong to that package. 4451 void removeItemsByPackageName(final ArrayList<String> packages) { 4452 final HashSet<String> packageNames = new HashSet<String>(); 4453 packageNames.addAll(packages); 4454 4455 // Filter out all the ItemInfos that this is going to affect 4456 final HashSet<ItemInfo> infos = new HashSet<ItemInfo>(); 4457 final HashSet<ComponentName> cns = new HashSet<ComponentName>(); 4458 ArrayList<CellLayout> cellLayouts = getWorkspaceAndHotseatCellLayouts(); 4459 for (CellLayout layoutParent : cellLayouts) { 4460 ViewGroup layout = layoutParent.getShortcutsAndWidgets(); 4461 int childCount = layout.getChildCount(); 4462 for (int i = 0; i < childCount; ++i) { 4463 View view = layout.getChildAt(i); 4464 infos.add((ItemInfo) view.getTag()); 4465 } 4466 } 4467 LauncherModel.ItemInfoFilter filter = new LauncherModel.ItemInfoFilter() { 4468 @Override 4469 public boolean filterItem(ItemInfo parent, ItemInfo info, 4470 ComponentName cn) { 4471 if (packageNames.contains(cn.getPackageName())) { 4472 cns.add(cn); 4473 return true; 4474 } 4475 return false; 4476 } 4477 }; 4478 LauncherModel.filterItemInfos(infos, filter); 4479 4480 // Remove the affected components 4481 removeItemsByComponentName(cns); 4482 } 4483 4484 // Removes items that match the application info specified, when applications are removed 4485 // as a part of an update, this is called to ensure that other widgets and application 4486 // shortcuts are not removed. 4487 void removeItemsByApplicationInfo(final ArrayList<AppInfo> appInfos) { 4488 // Just create a hash table of all the specific components that this will affect 4489 HashSet<ComponentName> cns = new HashSet<ComponentName>(); 4490 for (AppInfo info : appInfos) { 4491 cns.add(info.componentName); 4492 } 4493 4494 // Remove all the things 4495 removeItemsByComponentName(cns); 4496 } 4497 4498 void removeItemsByComponentName(final HashSet<ComponentName> componentNames) { 4499 ArrayList<CellLayout> cellLayouts = getWorkspaceAndHotseatCellLayouts(); 4500 for (final CellLayout layoutParent: cellLayouts) { 4501 final ViewGroup layout = layoutParent.getShortcutsAndWidgets(); 4502 4503 final HashMap<ItemInfo, View> children = new HashMap<ItemInfo, View>(); 4504 for (int j = 0; j < layout.getChildCount(); j++) { 4505 final View view = layout.getChildAt(j); 4506 children.put((ItemInfo) view.getTag(), view); 4507 } 4508 4509 final ArrayList<View> childrenToRemove = new ArrayList<View>(); 4510 final HashMap<FolderInfo, ArrayList<ShortcutInfo>> folderAppsToRemove = 4511 new HashMap<FolderInfo, ArrayList<ShortcutInfo>>(); 4512 LauncherModel.ItemInfoFilter filter = new LauncherModel.ItemInfoFilter() { 4513 @Override 4514 public boolean filterItem(ItemInfo parent, ItemInfo info, 4515 ComponentName cn) { 4516 if (parent instanceof FolderInfo) { 4517 if (componentNames.contains(cn)) { 4518 FolderInfo folder = (FolderInfo) parent; 4519 ArrayList<ShortcutInfo> appsToRemove; 4520 if (folderAppsToRemove.containsKey(folder)) { 4521 appsToRemove = folderAppsToRemove.get(folder); 4522 } else { 4523 appsToRemove = new ArrayList<ShortcutInfo>(); 4524 folderAppsToRemove.put(folder, appsToRemove); 4525 } 4526 appsToRemove.add((ShortcutInfo) info); 4527 return true; 4528 } 4529 } else { 4530 if (componentNames.contains(cn)) { 4531 childrenToRemove.add(children.get(info)); 4532 return true; 4533 } 4534 } 4535 return false; 4536 } 4537 }; 4538 LauncherModel.filterItemInfos(children.keySet(), filter); 4539 4540 // Remove all the apps from their folders 4541 for (FolderInfo folder : folderAppsToRemove.keySet()) { 4542 ArrayList<ShortcutInfo> appsToRemove = folderAppsToRemove.get(folder); 4543 for (ShortcutInfo info : appsToRemove) { 4544 folder.remove(info); 4545 } 4546 } 4547 4548 // Remove all the other children 4549 for (View child : childrenToRemove) { 4550 // Note: We can not remove the view directly from CellLayoutChildren as this 4551 // does not re-mark the spaces as unoccupied. 4552 layoutParent.removeViewInLayout(child); 4553 if (child instanceof DropTarget) { 4554 mDragController.removeDropTarget((DropTarget) child); 4555 } 4556 } 4557 4558 if (childrenToRemove.size() > 0) { 4559 layout.requestLayout(); 4560 layout.invalidate(); 4561 } 4562 } 4563 4564 // Strip all the empty screens 4565 stripEmptyScreens(); 4566 } 4567 4568 private void updateShortcut(HashMap<ComponentName, AppInfo> appsMap, ItemInfo info, 4569 View child) { 4570 ComponentName cn = info.getIntent().getComponent(); 4571 if (cn != null) { 4572 AppInfo appInfo = appsMap.get(info.getIntent().getComponent()); 4573 if ((appInfo != null) && LauncherModel.isShortcutInfoUpdateable(info)) { 4574 ShortcutInfo shortcutInfo = (ShortcutInfo) info; 4575 BubbleTextView shortcut = (BubbleTextView) child; 4576 shortcutInfo.updateIcon(mIconCache); 4577 shortcutInfo.title = appInfo.title.toString(); 4578 shortcut.applyFromShortcutInfo(shortcutInfo, mIconCache); 4579 } 4580 } 4581 } 4582 4583 void updateShortcuts(ArrayList<AppInfo> apps) { 4584 // Create a map of the apps to test against 4585 final HashMap<ComponentName, AppInfo> appsMap = new HashMap<ComponentName, AppInfo>(); 4586 for (AppInfo ai : apps) { 4587 appsMap.put(ai.componentName, ai); 4588 } 4589 4590 ArrayList<ShortcutAndWidgetContainer> childrenLayouts = getAllShortcutAndWidgetContainers(); 4591 for (ShortcutAndWidgetContainer layout: childrenLayouts) { 4592 // Update all the children shortcuts 4593 final HashMap<ItemInfo, View> children = new HashMap<ItemInfo, View>(); 4594 for (int j = 0; j < layout.getChildCount(); j++) { 4595 View v = layout.getChildAt(j); 4596 ItemInfo info = (ItemInfo) v.getTag(); 4597 if (info instanceof FolderInfo && v instanceof FolderIcon) { 4598 FolderIcon folder = (FolderIcon) v; 4599 ArrayList<View> folderChildren = folder.getFolder().getItemsInReadingOrder(); 4600 for (View fv : folderChildren) { 4601 info = (ItemInfo) fv.getTag(); 4602 updateShortcut(appsMap, info, fv); 4603 } 4604 folder.invalidate(); 4605 } else if (info instanceof ShortcutInfo) { 4606 updateShortcut(appsMap, info, v); 4607 } 4608 } 4609 } 4610 } 4611 4612 private void moveToScreen(int page, boolean animate) { 4613 if (!isSmall()) { 4614 if (animate) { 4615 snapToPage(page); 4616 } else { 4617 setCurrentPage(page); 4618 } 4619 } 4620 View child = getChildAt(page); 4621 if (child != null) { 4622 child.requestFocus(); 4623 } 4624 } 4625 4626 void moveToDefaultScreen(boolean animate) { 4627 moveToScreen(mDefaultPage, animate); 4628 } 4629 4630 void moveToCustomContentScreen(boolean animate) { 4631 if (hasCustomContent()) { 4632 int ccIndex = getPageIndexForScreenId(CUSTOM_CONTENT_SCREEN_ID); 4633 if (animate) { 4634 snapToPage(ccIndex); 4635 } else { 4636 setCurrentPage(ccIndex); 4637 } 4638 View child = getChildAt(ccIndex); 4639 if (child != null) { 4640 child.requestFocus(); 4641 } 4642 } 4643 exitWidgetResizeMode(); 4644 } 4645 4646 @Override 4647 protected PageIndicator.PageMarkerResources getPageIndicatorMarker(int pageIndex) { 4648 long screenId = getScreenIdForPageIndex(pageIndex); 4649 if (screenId == EXTRA_EMPTY_SCREEN_ID) { 4650 int count = mScreenOrder.size() - numCustomPages(); 4651 if (count > 1) { 4652 return new PageIndicator.PageMarkerResources(R.drawable.ic_pageindicator_current, 4653 R.drawable.ic_pageindicator_add); 4654 } 4655 } 4656 4657 return super.getPageIndicatorMarker(pageIndex); 4658 } 4659 4660 @Override 4661 public void syncPages() { 4662 } 4663 4664 @Override 4665 public void syncPageItems(int page, boolean immediate) { 4666 } 4667 4668 protected String getPageIndicatorDescription() { 4669 String settings = getResources().getString(R.string.settings_button_text); 4670 return getCurrentPageDescription() + ", " + settings; 4671 } 4672 4673 protected String getCurrentPageDescription() { 4674 int page = (mNextPage != INVALID_PAGE) ? mNextPage : mCurrentPage; 4675 int delta = numCustomPages(); 4676 if (hasCustomContent() && getNextPage() == 0) { 4677 return mCustomContentDescription; 4678 } 4679 return String.format(getContext().getString(R.string.workspace_scroll_format), 4680 page + 1 - delta, getChildCount() - delta); 4681 } 4682 4683 public void getLocationInDragLayer(int[] loc) { 4684 mLauncher.getDragLayer().getLocationInDragLayer(this, loc); 4685 } 4686} 4687