Workspace.java revision ede4129e77f8347e32c0da9c615bcff2cbc06fd8
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.AnimatorListenerAdapter; 21import android.animation.AnimatorSet; 22import android.animation.LayoutTransition; 23import android.animation.ObjectAnimator; 24import android.animation.TimeInterpolator; 25import android.animation.ValueAnimator; 26import android.animation.ValueAnimator.AnimatorUpdateListener; 27import android.app.WallpaperManager; 28import android.appwidget.AppWidgetHostView; 29import android.appwidget.AppWidgetProviderInfo; 30import android.content.ComponentName; 31import android.content.Context; 32import android.content.Intent; 33import android.content.SharedPreferences; 34import android.content.res.Resources; 35import android.content.res.TypedArray; 36import android.graphics.Bitmap; 37import android.graphics.Canvas; 38import android.graphics.Matrix; 39import android.graphics.Point; 40import android.graphics.PointF; 41import android.graphics.Rect; 42import android.graphics.Region.Op; 43import android.graphics.drawable.Drawable; 44import android.net.Uri; 45import android.os.IBinder; 46import android.os.Parcelable; 47import android.util.AttributeSet; 48import android.util.Log; 49import android.util.SparseArray; 50import android.view.Choreographer; 51import android.view.Display; 52import android.view.MotionEvent; 53import android.view.View; 54import android.view.ViewGroup; 55import android.view.animation.DecelerateInterpolator; 56import android.view.animation.Interpolator; 57import android.widget.TextView; 58 59import com.android.launcher3.FolderIcon.FolderRingAnimator; 60import com.android.launcher3.Launcher.CustomContentCallbacks; 61import com.android.launcher3.LauncherSettings.Favorites; 62 63import java.util.ArrayList; 64import java.util.HashMap; 65import java.util.HashSet; 66import java.util.Iterator; 67 68/** 69 * The workspace is a wide area with a wallpaper and a finite number of pages. 70 * Each page contains a number of icons, folders or widgets the user can 71 * interact with. A workspace is meant to be used with a fixed width only. 72 */ 73public class Workspace extends SmoothPagedView 74 implements DropTarget, DragSource, DragScroller, View.OnTouchListener, 75 DragController.DragListener, LauncherTransitionable, ViewGroup.OnHierarchyChangeListener, 76 Insettable { 77 private static final String TAG = "Launcher.Workspace"; 78 79 // Y rotation to apply to the workspace screens 80 private static final float WORKSPACE_OVERSCROLL_ROTATION = 24f; 81 82 private static final int CHILDREN_OUTLINE_FADE_OUT_DELAY = 0; 83 private static final int CHILDREN_OUTLINE_FADE_OUT_DURATION = 375; 84 private static final int CHILDREN_OUTLINE_FADE_IN_DURATION = 100; 85 86 private static final int BACKGROUND_FADE_OUT_DURATION = 350; 87 private static final int ADJACENT_SCREEN_DROP_DURATION = 300; 88 private static final int FLING_THRESHOLD_VELOCITY = 500; 89 90 private static final float ALPHA_CUTOFF_THRESHOLD = 0.01f; 91 92 // These animators are used to fade the children's outlines 93 private ObjectAnimator mChildrenOutlineFadeInAnimation; 94 private ObjectAnimator mChildrenOutlineFadeOutAnimation; 95 private float mChildrenOutlineAlpha = 0; 96 97 // These properties refer to the background protection gradient used for AllApps and Customize 98 private ValueAnimator mBackgroundFadeInAnimation; 99 private ValueAnimator mBackgroundFadeOutAnimation; 100 private Drawable mBackground; 101 boolean mDrawBackground = true; 102 private float mBackgroundAlpha = 0; 103 104 private static final long CUSTOM_CONTENT_GESTURE_DELAY = 200; 105 private long mTouchDownTime = -1; 106 private long mCustomContentShowTime = -1; 107 108 private LayoutTransition mLayoutTransition; 109 private final WallpaperManager mWallpaperManager; 110 private IBinder mWindowToken; 111 112 private int mOriginalDefaultPage; 113 private int mDefaultPage; 114 115 private ShortcutAndWidgetContainer mDragSourceInternal; 116 117 // The screen id used for the empty screen always present to the right. 118 private final static long EXTRA_EMPTY_SCREEN_ID = -201; 119 private final static long CUSTOM_CONTENT_SCREEN_ID = -301; 120 121 private HashMap<Long, CellLayout> mWorkspaceScreens = new HashMap<Long, CellLayout>(); 122 private ArrayList<Long> mScreenOrder = new ArrayList<Long>(); 123 124 /** 125 * CellInfo for the cell that is currently being dragged 126 */ 127 private CellLayout.CellInfo mDragInfo; 128 129 /** 130 * Target drop area calculated during last acceptDrop call. 131 */ 132 private int[] mTargetCell = new int[2]; 133 private int mDragOverX = -1; 134 private int mDragOverY = -1; 135 136 static Rect mLandscapeCellLayoutMetrics = null; 137 static Rect mPortraitCellLayoutMetrics = null; 138 139 CustomContentCallbacks mCustomContentCallbacks; 140 boolean mCustomContentShowing; 141 private float mLastCustomContentScrollProgress = -1f; 142 143 /** 144 * The CellLayout that is currently being dragged over 145 */ 146 private CellLayout mDragTargetLayout = null; 147 /** 148 * The CellLayout that we will show as glowing 149 */ 150 private CellLayout mDragOverlappingLayout = null; 151 152 /** 153 * The CellLayout which will be dropped to 154 */ 155 private CellLayout mDropToLayout = null; 156 157 private Launcher mLauncher; 158 private IconCache mIconCache; 159 private DragController mDragController; 160 161 // These are temporary variables to prevent having to allocate a new object just to 162 // return an (x, y) value from helper functions. Do NOT use them to maintain other state. 163 private int[] mTempCell = new int[2]; 164 private int[] mTempPt = new int[2]; 165 private int[] mTempEstimate = new int[2]; 166 private float[] mDragViewVisualCenter = new float[2]; 167 private float[] mTempCellLayoutCenterCoordinates = new float[2]; 168 private Matrix mTempInverseMatrix = new Matrix(); 169 170 private SpringLoadedDragController mSpringLoadedDragController; 171 private float mSpringLoadedShrinkFactor; 172 private float mOverviewModeShrinkFactor; 173 174 // State variable that indicates whether the pages are small (ie when you're 175 // in all apps or customize mode) 176 177 enum State { NORMAL, SPRING_LOADED, SMALL, OVERVIEW}; 178 private State mState = State.NORMAL; 179 private boolean mIsSwitchingState = false; 180 181 boolean mAnimatingViewIntoPlace = false; 182 boolean mIsDragOccuring = false; 183 boolean mChildrenLayersEnabled = true; 184 185 private boolean mStripScreensOnPageStopMoving = false; 186 187 /** Is the user is dragging an item near the edge of a page? */ 188 private boolean mInScrollArea = false; 189 190 private HolographicOutlineHelper mOutlineHelper; 191 private Bitmap mDragOutline = null; 192 private final Rect mTempRect = new Rect(); 193 private final int[] mTempXY = new int[2]; 194 private int[] mTempVisiblePagesRange = new int[2]; 195 private boolean mOverscrollTransformsSet; 196 public static final int DRAG_BITMAP_PADDING = 2; 197 private boolean mWorkspaceFadeInAdjacentScreens; 198 199 WallpaperOffsetInterpolator mWallpaperOffset; 200 private Runnable mDelayedResizeRunnable; 201 private Runnable mDelayedSnapToPageRunnable; 202 private Point mDisplaySize = new Point(); 203 private int mCameraDistance; 204 205 // Variables relating to the creation of user folders by hovering shortcuts over shortcuts 206 private static final int FOLDER_CREATION_TIMEOUT = 0; 207 private static final int REORDER_TIMEOUT = 250; 208 private final Alarm mFolderCreationAlarm = new Alarm(); 209 private final Alarm mReorderAlarm = new Alarm(); 210 private FolderRingAnimator mDragFolderRingAnimator = null; 211 private FolderIcon mDragOverFolderIcon = null; 212 private boolean mCreateUserFolderOnDrop = false; 213 private boolean mAddToExistingFolderOnDrop = false; 214 private DropTarget.DragEnforcer mDragEnforcer; 215 private float mMaxDistanceForFolderCreation; 216 217 // Variables relating to touch disambiguation (scrolling workspace vs. scrolling a widget) 218 private float mXDown; 219 private float mYDown; 220 final static float START_DAMPING_TOUCH_SLOP_ANGLE = (float) Math.PI / 6; 221 final static float MAX_SWIPE_ANGLE = (float) Math.PI / 3; 222 final static float TOUCH_SLOP_DAMPING_FACTOR = 4; 223 224 // Relating to the animation of items being dropped externally 225 public static final int ANIMATE_INTO_POSITION_AND_DISAPPEAR = 0; 226 public static final int ANIMATE_INTO_POSITION_AND_REMAIN = 1; 227 public static final int ANIMATE_INTO_POSITION_AND_RESIZE = 2; 228 public static final int COMPLETE_TWO_STAGE_WIDGET_DROP_ANIMATION = 3; 229 public static final int CANCEL_TWO_STAGE_WIDGET_DROP_ANIMATION = 4; 230 231 // Related to dragging, folder creation and reordering 232 private static final int DRAG_MODE_NONE = 0; 233 private static final int DRAG_MODE_CREATE_FOLDER = 1; 234 private static final int DRAG_MODE_ADD_TO_FOLDER = 2; 235 private static final int DRAG_MODE_REORDER = 3; 236 private int mDragMode = DRAG_MODE_NONE; 237 private int mLastReorderX = -1; 238 private int mLastReorderY = -1; 239 240 private SparseArray<Parcelable> mSavedStates; 241 private final ArrayList<Integer> mRestoredPages = new ArrayList<Integer>(); 242 243 // These variables are used for storing the initial and final values during workspace animations 244 private int mSavedScrollX; 245 private float mSavedRotationY; 246 private float mSavedTranslationX; 247 248 private float mCurrentScale; 249 private float mNewScale; 250 private float[] mOldBackgroundAlphas; 251 private float[] mOldAlphas; 252 private float[] mNewBackgroundAlphas; 253 private float[] mNewAlphas; 254 private int mLastChildCount = -1; 255 private float mTransitionProgress; 256 257 private Runnable mDeferredAction; 258 private boolean mDeferDropAfterUninstall; 259 private boolean mUninstallSuccessful; 260 261 private final Runnable mBindPages = new Runnable() { 262 @Override 263 public void run() { 264 mLauncher.getModel().bindRemainingSynchronousPages(); 265 } 266 }; 267 268 /** 269 * Used to inflate the Workspace from XML. 270 * 271 * @param context The application's context. 272 * @param attrs The attributes set containing the Workspace's customization values. 273 */ 274 public Workspace(Context context, AttributeSet attrs) { 275 this(context, attrs, 0); 276 } 277 278 /** 279 * Used to inflate the Workspace from XML. 280 * 281 * @param context The application's context. 282 * @param attrs The attributes set containing the Workspace's customization values. 283 * @param defStyle Unused. 284 */ 285 public Workspace(Context context, AttributeSet attrs, int defStyle) { 286 super(context, attrs, defStyle); 287 mContentIsRefreshable = false; 288 289 mOutlineHelper = HolographicOutlineHelper.obtain(context); 290 291 mDragEnforcer = new DropTarget.DragEnforcer(context); 292 // With workspace, data is available straight from the get-go 293 setDataIsReady(); 294 295 mLauncher = (Launcher) context; 296 final Resources res = getResources(); 297 mWorkspaceFadeInAdjacentScreens = res.getBoolean(R.bool.config_workspaceFadeAdjacentScreens); 298 mFadeInAdjacentScreens = false; 299 mWallpaperManager = WallpaperManager.getInstance(context); 300 301 TypedArray a = context.obtainStyledAttributes(attrs, 302 R.styleable.Workspace, defStyle, 0); 303 mSpringLoadedShrinkFactor = 304 res.getInteger(R.integer.config_workspaceSpringLoadShrinkPercentage) / 100.0f; 305 mOverviewModeShrinkFactor = 306 res.getInteger(R.integer.config_workspaceOverviewShrinkPercentage) / 100.0f; 307 mCameraDistance = res.getInteger(R.integer.config_cameraDistance); 308 mOriginalDefaultPage = mDefaultPage = a.getInt(R.styleable.Workspace_defaultScreen, 1); 309 a.recycle(); 310 311 setOnHierarchyChangeListener(this); 312 setHapticFeedbackEnabled(false); 313 314 initWorkspace(); 315 316 // Disable multitouch across the workspace/all apps/customize tray 317 setMotionEventSplittingEnabled(true); 318 319 // Unless otherwise specified this view is important for accessibility. 320 if (getImportantForAccessibility() == View.IMPORTANT_FOR_ACCESSIBILITY_AUTO) { 321 setImportantForAccessibility(View.IMPORTANT_FOR_ACCESSIBILITY_YES); 322 } 323 } 324 325 @Override 326 public void setInsets(Rect insets) { 327 mInsets.set(insets); 328 } 329 330 // estimate the size of a widget with spans hSpan, vSpan. return MAX_VALUE for each 331 // dimension if unsuccessful 332 public int[] estimateItemSize(int hSpan, int vSpan, 333 ItemInfo itemInfo, boolean springLoaded) { 334 int[] size = new int[2]; 335 if (getChildCount() > 0) { 336 CellLayout cl = (CellLayout) mLauncher.getWorkspace().getChildAt(0); 337 Rect r = estimateItemPosition(cl, itemInfo, 0, 0, hSpan, vSpan); 338 size[0] = r.width(); 339 size[1] = r.height(); 340 if (springLoaded) { 341 size[0] *= mSpringLoadedShrinkFactor; 342 size[1] *= mSpringLoadedShrinkFactor; 343 } 344 return size; 345 } else { 346 size[0] = Integer.MAX_VALUE; 347 size[1] = Integer.MAX_VALUE; 348 return size; 349 } 350 } 351 352 public Rect estimateItemPosition(CellLayout cl, ItemInfo pendingInfo, 353 int hCell, int vCell, int hSpan, int vSpan) { 354 Rect r = new Rect(); 355 cl.cellToRect(hCell, vCell, hSpan, vSpan, r); 356 return r; 357 } 358 359 public void onDragStart(final DragSource source, Object info, int dragAction) { 360 mIsDragOccuring = true; 361 updateChildrenLayersEnabled(false); 362 mLauncher.lockScreenOrientation(); 363 mLauncher.onInteractionBegin(); 364 setChildrenBackgroundAlphaMultipliers(1f); 365 // Prevent any Un/InstallShortcutReceivers from updating the db while we are dragging 366 InstallShortcutReceiver.enableInstallQueue(); 367 UninstallShortcutReceiver.enableUninstallQueue(); 368 post(new Runnable() { 369 @Override 370 public void run() { 371 if (mIsDragOccuring) { 372 addExtraEmptyScreenOnDrag(); 373 } 374 } 375 }); 376 } 377 378 public void onDragEnd() { 379 mIsDragOccuring = false; 380 updateChildrenLayersEnabled(false); 381 mLauncher.unlockScreenOrientation(false); 382 383 // Re-enable any Un/InstallShortcutReceiver and now process any queued items 384 InstallShortcutReceiver.disableAndFlushInstallQueue(getContext()); 385 UninstallShortcutReceiver.disableAndFlushUninstallQueue(getContext()); 386 387 removeExtraEmptyScreen(); 388 mDragSourceInternal = null; 389 mLauncher.onInteractionEnd(); 390 } 391 392 /** 393 * Initializes various states for this workspace. 394 */ 395 protected void initWorkspace() { 396 Context context = getContext(); 397 mCurrentPage = mDefaultPage; 398 Launcher.setScreen(mCurrentPage); 399 LauncherAppState app = LauncherAppState.getInstance(); 400 DeviceProfile grid = app.getDynamicGrid().getDeviceProfile(); 401 mIconCache = app.getIconCache(); 402 setWillNotDraw(false); 403 setClipChildren(false); 404 setClipToPadding(false); 405 setChildrenDrawnWithCacheEnabled(true); 406 setMinScale(0.5f); 407 setupLayoutTransition(); 408 409 final Resources res = getResources(); 410 try { 411 mBackground = res.getDrawable(R.drawable.apps_customize_bg); 412 } catch (Resources.NotFoundException e) { 413 // In this case, we will skip drawing background protection 414 } 415 416 mWallpaperOffset = new WallpaperOffsetInterpolator(); 417 Display display = mLauncher.getWindowManager().getDefaultDisplay(); 418 display.getSize(mDisplaySize); 419 420 mMaxDistanceForFolderCreation = (0.55f * grid.iconSizePx); 421 mFlingThresholdVelocity = (int) (FLING_THRESHOLD_VELOCITY * mDensity); 422 } 423 424 private void setupLayoutTransition() { 425 // We want to show layout transitions when pages are deleted, to close the gap. 426 mLayoutTransition = new LayoutTransition(); 427 mLayoutTransition.enableTransitionType(LayoutTransition.DISAPPEARING); 428 mLayoutTransition.enableTransitionType(LayoutTransition.CHANGE_DISAPPEARING); 429 mLayoutTransition.disableTransitionType(LayoutTransition.APPEARING); 430 mLayoutTransition.disableTransitionType(LayoutTransition.CHANGE_APPEARING); 431 setLayoutTransition(mLayoutTransition); 432 } 433 434 @Override 435 protected int getScrollMode() { 436 return SmoothPagedView.X_LARGE_MODE; 437 } 438 439 @Override 440 public void onChildViewAdded(View parent, View child) { 441 if (!(child instanceof CellLayout)) { 442 throw new IllegalArgumentException("A Workspace can only have CellLayout children."); 443 } 444 CellLayout cl = ((CellLayout) child); 445 cl.setOnInterceptTouchListener(this); 446 cl.setClickable(true); 447 cl.setContentDescription(getContext().getString( 448 R.string.workspace_description_format, getChildCount())); 449 450 super.onChildViewAdded(parent, child); 451 } 452 453 protected boolean shouldDrawChild(View child) { 454 final CellLayout cl = (CellLayout) child; 455 return super.shouldDrawChild(child) && 456 (cl.getShortcutsAndWidgets().getAlpha() > 0 || 457 cl.getBackgroundAlpha() > 0); 458 } 459 460 /** 461 * @return The open folder on the current screen, or null if there is none 462 */ 463 Folder getOpenFolder() { 464 DragLayer dragLayer = mLauncher.getDragLayer(); 465 int count = dragLayer.getChildCount(); 466 for (int i = 0; i < count; i++) { 467 View child = dragLayer.getChildAt(i); 468 if (child instanceof Folder) { 469 Folder folder = (Folder) child; 470 if (folder.getInfo().opened) 471 return folder; 472 } 473 } 474 return null; 475 } 476 477 boolean isTouchActive() { 478 return mTouchState != TOUCH_STATE_REST; 479 } 480 481 public void removeAllWorkspaceScreens() { 482 // Remove the pages and clear the screen models 483 removeAllViews(); 484 mScreenOrder.clear(); 485 mWorkspaceScreens.clear(); 486 } 487 488 public long insertNewWorkspaceScreenBeforeEmptyScreen(long screenId) { 489 // Find the index to insert this view into. If the empty screen exists, then 490 // insert it before that. 491 int insertIndex = mScreenOrder.indexOf(EXTRA_EMPTY_SCREEN_ID); 492 if (insertIndex < 0) { 493 insertIndex = mScreenOrder.size(); 494 } 495 return insertNewWorkspaceScreen(screenId, insertIndex); 496 } 497 498 public long insertNewWorkspaceScreen(long screenId) { 499 return insertNewWorkspaceScreen(screenId, getChildCount()); 500 } 501 502 public long insertNewWorkspaceScreen(long screenId, int insertIndex) { 503 if (mWorkspaceScreens.containsKey(screenId)) { 504 throw new RuntimeException("Screen id " + screenId + " already exists!"); 505 } 506 507 CellLayout newScreen = (CellLayout) 508 mLauncher.getLayoutInflater().inflate(R.layout.workspace_screen, null); 509 510 newScreen.setOnLongClickListener(mLongClickListener); 511 newScreen.setOnClickListener(mLauncher); 512 newScreen.setSoundEffectsEnabled(false); 513 mWorkspaceScreens.put(screenId, newScreen); 514 mScreenOrder.add(insertIndex, screenId); 515 addView(newScreen, insertIndex); 516 return screenId; 517 } 518 519 public void createCustomContentPage() { 520 CellLayout customScreen = (CellLayout) 521 mLauncher.getLayoutInflater().inflate(R.layout.workspace_screen, null); 522 523 mWorkspaceScreens.put(CUSTOM_CONTENT_SCREEN_ID, customScreen); 524 mScreenOrder.add(0, CUSTOM_CONTENT_SCREEN_ID); 525 526 // We want no padding on the custom content 527 customScreen.setPadding(0, 0, 0, 0); 528 529 addFullScreenPage(customScreen); 530 531 // Ensure that the current page and default page are maintained. 532 mDefaultPage = mOriginalDefaultPage + 1; 533 setCurrentPage(getCurrentPage() + 1); 534 } 535 536 public void removeCustomContentPage() { 537 CellLayout customScreen = getScreenWithId(CUSTOM_CONTENT_SCREEN_ID); 538 if (customScreen == null) { 539 throw new RuntimeException("Expected custom content screen to exist"); 540 } 541 542 mWorkspaceScreens.remove(CUSTOM_CONTENT_SCREEN_ID); 543 mScreenOrder.remove(CUSTOM_CONTENT_SCREEN_ID); 544 removeView(customScreen); 545 mCustomContentCallbacks = null; 546 547 // Ensure that the current page and default page are maintained. 548 mDefaultPage = mOriginalDefaultPage - 1; 549 setCurrentPage(getCurrentPage() - 1); 550 } 551 552 public void addToCustomContentPage(View customContent, CustomContentCallbacks callbacks) { 553 if (getPageIndexForScreenId(CUSTOM_CONTENT_SCREEN_ID) < 0) { 554 throw new RuntimeException("Expected custom content screen to exist"); 555 } 556 557 // Add the custom content to the full screen custom page 558 CellLayout customScreen = getScreenWithId(CUSTOM_CONTENT_SCREEN_ID); 559 int spanX = customScreen.getCountX(); 560 int spanY = customScreen.getCountY(); 561 CellLayout.LayoutParams lp = new CellLayout.LayoutParams(0, 0, spanX, spanY); 562 lp.canReorder = false; 563 lp.isFullscreen = true; 564 if (customContent instanceof Insettable) { 565 ((Insettable)customContent).setInsets(mInsets); 566 } 567 customScreen.addViewToCellLayout(customContent, 0, 0, lp, true); 568 569 mCustomContentCallbacks = callbacks; 570 } 571 572 public void addExtraEmptyScreenOnDrag() { 573 boolean lastChildOnScreen = false; 574 boolean childOnFinalScreen = false; 575 576 if (mDragSourceInternal != null) { 577 if (mDragSourceInternal.getChildCount() == 1) { 578 lastChildOnScreen = true; 579 } 580 CellLayout cl = (CellLayout) mDragSourceInternal.getParent(); 581 if (indexOfChild(cl) == getChildCount() - 1) { 582 childOnFinalScreen = true; 583 } 584 } 585 586 // If this is the last item on the final screen 587 if (lastChildOnScreen && childOnFinalScreen) { 588 return; 589 } 590 if (!mWorkspaceScreens.containsKey(EXTRA_EMPTY_SCREEN_ID)) { 591 insertNewWorkspaceScreen(EXTRA_EMPTY_SCREEN_ID); 592 } 593 } 594 595 public boolean addExtraEmptyScreen() { 596 if (!mWorkspaceScreens.containsKey(EXTRA_EMPTY_SCREEN_ID)) { 597 insertNewWorkspaceScreen(EXTRA_EMPTY_SCREEN_ID); 598 return true; 599 } 600 return false; 601 } 602 603 public void removeExtraEmptyScreen() { 604 int nScreens = getChildCount(); 605 nScreens = hasCustomContent() ? nScreens - 1 : nScreens; 606 607 if (mWorkspaceScreens.containsKey(EXTRA_EMPTY_SCREEN_ID) && nScreens > 1) { 608 CellLayout cl = mWorkspaceScreens.get(EXTRA_EMPTY_SCREEN_ID); 609 mWorkspaceScreens.remove(EXTRA_EMPTY_SCREEN_ID); 610 mScreenOrder.remove(EXTRA_EMPTY_SCREEN_ID); 611 removeView(cl); 612 } 613 } 614 615 public long commitExtraEmptyScreen() { 616 CellLayout cl = mWorkspaceScreens.get(EXTRA_EMPTY_SCREEN_ID); 617 mWorkspaceScreens.remove(EXTRA_EMPTY_SCREEN_ID); 618 mScreenOrder.remove(EXTRA_EMPTY_SCREEN_ID); 619 620 long newId = LauncherAppState.getLauncherProvider().generateNewScreenId(); 621 mWorkspaceScreens.put(newId, cl); 622 mScreenOrder.add(newId); 623 624 // Update the model for the new screen 625 mLauncher.getModel().updateWorkspaceScreenOrder(mLauncher, mScreenOrder); 626 627 return newId; 628 } 629 630 631 public CellLayout getScreenWithId(long screenId) { 632 CellLayout layout = mWorkspaceScreens.get(screenId); 633 return layout; 634 } 635 636 public long getIdForScreen(CellLayout layout) { 637 Iterator<Long> iter = mWorkspaceScreens.keySet().iterator(); 638 while (iter.hasNext()) { 639 long id = iter.next(); 640 if (mWorkspaceScreens.get(id) == layout) { 641 return id; 642 } 643 } 644 return -1; 645 } 646 647 public int getPageIndexForScreenId(long screenId) { 648 return indexOfChild(mWorkspaceScreens.get(screenId)); 649 } 650 651 public long getScreenIdForPageIndex(int index) { 652 if (0 <= index && index < mScreenOrder.size()) { 653 return mScreenOrder.get(index); 654 } 655 return -1; 656 } 657 658 ArrayList<Long> getScreenOrder() { 659 return mScreenOrder; 660 } 661 662 public void stripEmptyScreens() { 663 if (isPageMoving()) { 664 mStripScreensOnPageStopMoving = true; 665 return; 666 } 667 668 int currentPage = getNextPage(); 669 ArrayList<Long> removeScreens = new ArrayList<Long>(); 670 for (Long id: mWorkspaceScreens.keySet()) { 671 CellLayout cl = mWorkspaceScreens.get(id); 672 if (id >= 0 && cl.getShortcutsAndWidgets().getChildCount() == 0) { 673 removeScreens.add(id); 674 } 675 } 676 677 // We enforce at least one page to add new items to. In the case that we remove the last 678 // such screen, we convert the last screen to the empty screen 679 int minScreens = hasCustomContent() ? 2 : 1; 680 681 int pageShift = 0; 682 for (Long id: removeScreens) { 683 CellLayout cl = mWorkspaceScreens.get(id); 684 mWorkspaceScreens.remove(id); 685 mScreenOrder.remove(id); 686 687 if (getChildCount() > minScreens) { 688 if (indexOfChild(cl) < currentPage) { 689 pageShift++; 690 } 691 removeView(cl); 692 } else { 693 // if this is the last non-custom content screen, convert it to the empty screen 694 mWorkspaceScreens.put(EXTRA_EMPTY_SCREEN_ID, cl); 695 mScreenOrder.add(EXTRA_EMPTY_SCREEN_ID); 696 } 697 } 698 699 if (!removeScreens.isEmpty()) { 700 // Update the model if we have changed any screens 701 mLauncher.getModel().updateWorkspaceScreenOrder(mLauncher, mScreenOrder); 702 } 703 704 if (pageShift >= 0) { 705 setCurrentPage(currentPage - pageShift); 706 } 707 } 708 709 // See implementation for parameter definition. 710 void addInScreen(View child, long container, long screenId, 711 int x, int y, int spanX, int spanY) { 712 addInScreen(child, container, screenId, x, y, spanX, spanY, false, false); 713 } 714 715 // At bind time, we use the rank (screenId) to compute x and y for hotseat items. 716 // See implementation for parameter definition. 717 void addInScreenFromBind(View child, long container, long screenId, int x, int y, 718 int spanX, int spanY) { 719 addInScreen(child, container, screenId, x, y, spanX, spanY, false, true); 720 } 721 722 // See implementation for parameter definition. 723 void addInScreen(View child, long container, long screenId, int x, int y, int spanX, int spanY, 724 boolean insert) { 725 addInScreen(child, container, screenId, x, y, spanX, spanY, insert, false); 726 } 727 728 /** 729 * Adds the specified child in the specified screen. The position and dimension of 730 * the child are defined by x, y, spanX and spanY. 731 * 732 * @param child The child to add in one of the workspace's screens. 733 * @param screenId The screen in which to add the child. 734 * @param x The X position of the child in the screen's grid. 735 * @param y The Y position of the child in the screen's grid. 736 * @param spanX The number of cells spanned horizontally by the child. 737 * @param spanY The number of cells spanned vertically by the child. 738 * @param insert When true, the child is inserted at the beginning of the children list. 739 * @param computeXYFromRank When true, we use the rank (stored in screenId) to compute 740 * the x and y position in which to place hotseat items. Otherwise 741 * we use the x and y position to compute the rank. 742 */ 743 void addInScreen(View child, long container, long screenId, int x, int y, int spanX, int spanY, 744 boolean insert, boolean computeXYFromRank) { 745 if (container == LauncherSettings.Favorites.CONTAINER_DESKTOP) { 746 if (getScreenWithId(screenId) == null) { 747 Log.e(TAG, "Skipping child, screenId " + screenId + " not found"); 748 // DEBUGGING - Print out the stack trace to see where we are adding from 749 new Throwable().printStackTrace(); 750 return; 751 } 752 } 753 if (screenId == EXTRA_EMPTY_SCREEN_ID) { 754 // This should never happen 755 throw new RuntimeException("Screen id should not be EXTRA_EMPTY_SCREEN_ID"); 756 } 757 758 final CellLayout layout; 759 if (container == LauncherSettings.Favorites.CONTAINER_HOTSEAT) { 760 layout = mLauncher.getHotseat().getLayout(); 761 child.setOnKeyListener(null); 762 763 // Hide folder title in the hotseat 764 if (child instanceof FolderIcon) { 765 ((FolderIcon) child).setTextVisible(false); 766 } 767 768 if (computeXYFromRank) { 769 x = mLauncher.getHotseat().getCellXFromOrder((int) screenId); 770 y = mLauncher.getHotseat().getCellYFromOrder((int) screenId); 771 } else { 772 screenId = mLauncher.getHotseat().getOrderInHotseat(x, y); 773 } 774 } else { 775 // Show folder title if not in the hotseat 776 if (child instanceof FolderIcon) { 777 ((FolderIcon) child).setTextVisible(true); 778 } 779 layout = getScreenWithId(screenId); 780 child.setOnKeyListener(new IconKeyEventListener()); 781 } 782 783 ViewGroup.LayoutParams genericLp = child.getLayoutParams(); 784 CellLayout.LayoutParams lp; 785 if (genericLp == null || !(genericLp instanceof CellLayout.LayoutParams)) { 786 lp = new CellLayout.LayoutParams(x, y, spanX, spanY); 787 } else { 788 lp = (CellLayout.LayoutParams) genericLp; 789 lp.cellX = x; 790 lp.cellY = y; 791 lp.cellHSpan = spanX; 792 lp.cellVSpan = spanY; 793 } 794 795 if (spanX < 0 && spanY < 0) { 796 lp.isLockedToGrid = false; 797 } 798 799 // Get the canonical child id to uniquely represent this view in this screen 800 int childId = LauncherModel.getCellLayoutChildId(container, screenId, x, y, spanX, spanY); 801 boolean markCellsAsOccupied = !(child instanceof Folder); 802 if (!layout.addViewToCellLayout(child, insert ? 0 : -1, childId, lp, markCellsAsOccupied)) { 803 // TODO: This branch occurs when the workspace is adding views 804 // outside of the defined grid 805 // maybe we should be deleting these items from the LauncherModel? 806 Launcher.addDumpLog(TAG, "Failed to add to item at (" + lp.cellX + "," + lp.cellY + ") to CellLayout", true); 807 } 808 809 if (!(child instanceof Folder)) { 810 child.setHapticFeedbackEnabled(false); 811 child.setOnLongClickListener(mLongClickListener); 812 } 813 if (child instanceof DropTarget) { 814 mDragController.addDropTarget((DropTarget) child); 815 } 816 } 817 818 /** 819 * Called directly from a CellLayout (not by the framework), after we've been added as a 820 * listener via setOnInterceptTouchEventListener(). This allows us to tell the CellLayout 821 * that it should intercept touch events, which is not something that is normally supported. 822 */ 823 @Override 824 public boolean onTouch(View v, MotionEvent event) { 825 return (isSmall() || !isFinishedSwitchingState()) 826 || (!isSmall() && indexOfChild(v) != mCurrentPage); 827 } 828 829 public boolean isSwitchingState() { 830 return mIsSwitchingState; 831 } 832 833 /** This differs from isSwitchingState in that we take into account how far the transition 834 * has completed. */ 835 public boolean isFinishedSwitchingState() { 836 return !mIsSwitchingState || (mTransitionProgress > 0.5f); 837 } 838 839 protected void onWindowVisibilityChanged (int visibility) { 840 mLauncher.onWindowVisibilityChanged(visibility); 841 if (mCustomContentShowing && mCustomContentCallbacks != null) { 842 if (visibility == View.VISIBLE) { 843 mCustomContentCallbacks.onShow(); 844 } else if (visibility == View.GONE) { 845 mCustomContentCallbacks.onHide(); 846 } 847 } 848 } 849 850 @Override 851 public boolean dispatchUnhandledMove(View focused, int direction) { 852 if (isSmall() || !isFinishedSwitchingState()) { 853 // when the home screens are shrunken, shouldn't allow side-scrolling 854 return false; 855 } 856 return super.dispatchUnhandledMove(focused, direction); 857 } 858 859 @Override 860 public boolean onInterceptTouchEvent(MotionEvent ev) { 861 switch (ev.getAction() & MotionEvent.ACTION_MASK) { 862 case MotionEvent.ACTION_DOWN: 863 mXDown = ev.getX(); 864 mYDown = ev.getY(); 865 mTouchDownTime = System.currentTimeMillis(); 866 break; 867 case MotionEvent.ACTION_POINTER_UP: 868 case MotionEvent.ACTION_UP: 869 if (mTouchState == TOUCH_STATE_REST) { 870 final CellLayout currentPage = (CellLayout) getChildAt(mCurrentPage); 871 if (!currentPage.lastDownOnOccupiedCell()) { 872 onWallpaperTap(ev); 873 } 874 } 875 } 876 return super.onInterceptTouchEvent(ev); 877 } 878 879 protected void reinflateWidgetsIfNecessary() { 880 final int clCount = getChildCount(); 881 for (int i = 0; i < clCount; i++) { 882 CellLayout cl = (CellLayout) getChildAt(i); 883 ShortcutAndWidgetContainer swc = cl.getShortcutsAndWidgets(); 884 final int itemCount = swc.getChildCount(); 885 for (int j = 0; j < itemCount; j++) { 886 View v = swc.getChildAt(j); 887 888 if (v.getTag() instanceof LauncherAppWidgetInfo) { 889 LauncherAppWidgetInfo info = (LauncherAppWidgetInfo) v.getTag(); 890 LauncherAppWidgetHostView lahv = (LauncherAppWidgetHostView) info.hostView; 891 if (lahv != null && lahv.orientationChangedSincedInflation()) { 892 mLauncher.removeAppWidget(info); 893 // Remove the current widget which is inflated with the wrong orientation 894 cl.removeView(lahv); 895 mLauncher.bindAppWidget(info); 896 } 897 } 898 } 899 } 900 } 901 902 @Override 903 protected void determineScrollingStart(MotionEvent ev) { 904 if (!isFinishedSwitchingState()) return; 905 906 float deltaX = ev.getX() - mXDown; 907 float absDeltaX = Math.abs(deltaX); 908 float absDeltaY = Math.abs(ev.getY() - mYDown); 909 910 if (Float.compare(absDeltaX, 0f) == 0) return; 911 912 float slope = absDeltaY / absDeltaX; 913 float theta = (float) Math.atan(slope); 914 915 if (absDeltaX > mTouchSlop || absDeltaY > mTouchSlop) { 916 cancelCurrentPageLongPress(); 917 } 918 919 boolean passRightSwipesToCustomContent = 920 (mTouchDownTime - mCustomContentShowTime) > CUSTOM_CONTENT_GESTURE_DELAY; 921 922 if (deltaX > 0 && getScreenIdForPageIndex(getCurrentPage()) == CUSTOM_CONTENT_SCREEN_ID 923 && passRightSwipesToCustomContent) { 924 // Pass swipes to the right to the custom content page. 925 return; 926 } 927 928 if (theta > MAX_SWIPE_ANGLE) { 929 // Above MAX_SWIPE_ANGLE, we don't want to ever start scrolling the workspace 930 return; 931 } else if (theta > START_DAMPING_TOUCH_SLOP_ANGLE) { 932 // Above START_DAMPING_TOUCH_SLOP_ANGLE and below MAX_SWIPE_ANGLE, we want to 933 // increase the touch slop to make it harder to begin scrolling the workspace. This 934 // results in vertically scrolling widgets to more easily. The higher the angle, the 935 // more we increase touch slop. 936 theta -= START_DAMPING_TOUCH_SLOP_ANGLE; 937 float extraRatio = (float) 938 Math.sqrt((theta / (MAX_SWIPE_ANGLE - START_DAMPING_TOUCH_SLOP_ANGLE))); 939 super.determineScrollingStart(ev, 1 + TOUCH_SLOP_DAMPING_FACTOR * extraRatio); 940 } else { 941 // Below START_DAMPING_TOUCH_SLOP_ANGLE, we don't do anything special 942 super.determineScrollingStart(ev); 943 } 944 } 945 946 protected void onPageBeginMoving() { 947 super.onPageBeginMoving(); 948 949 if (isHardwareAccelerated()) { 950 updateChildrenLayersEnabled(false); 951 } else { 952 if (mNextPage != INVALID_PAGE) { 953 // we're snapping to a particular screen 954 enableChildrenCache(mCurrentPage, mNextPage); 955 } else { 956 // this is when user is actively dragging a particular screen, they might 957 // swipe it either left or right (but we won't advance by more than one screen) 958 enableChildrenCache(mCurrentPage - 1, mCurrentPage + 1); 959 } 960 } 961 962 // Only show page outlines as we pan if we are on large screen 963 if (LauncherAppState.getInstance().isScreenLarge()) { 964 showOutlines(); 965 } 966 967 // If we are not fading in adjacent screens, we still need to restore the alpha in case the 968 // user scrolls while we are transitioning (should not affect dispatchDraw optimizations) 969 if (!mWorkspaceFadeInAdjacentScreens) { 970 for (int i = 0; i < getChildCount(); ++i) { 971 ((CellLayout) getPageAt(i)).setShortcutAndWidgetAlpha(1f); 972 } 973 } 974 } 975 976 protected void onPageEndMoving() { 977 super.onPageEndMoving(); 978 979 if (isHardwareAccelerated()) { 980 updateChildrenLayersEnabled(false); 981 } else { 982 clearChildrenCache(); 983 } 984 985 986 if (mDragController.isDragging()) { 987 if (isSmall()) { 988 // If we are in springloaded mode, then force an event to check if the current touch 989 // is under a new page (to scroll to) 990 mDragController.forceTouchMove(); 991 } 992 } else { 993 // If we are not mid-dragging, hide the page outlines if we are on a large screen 994 if (LauncherAppState.getInstance().isScreenLarge()) { 995 hideOutlines(); 996 } 997 } 998 999 if (mDelayedResizeRunnable != null) { 1000 mDelayedResizeRunnable.run(); 1001 mDelayedResizeRunnable = null; 1002 } 1003 1004 if (mDelayedSnapToPageRunnable != null) { 1005 mDelayedSnapToPageRunnable.run(); 1006 mDelayedSnapToPageRunnable = null; 1007 } 1008 if (mStripScreensOnPageStopMoving) { 1009 stripEmptyScreens(); 1010 mStripScreensOnPageStopMoving = false; 1011 } 1012 1013 if (hasCustomContent() && getNextPage() == 0 && !mCustomContentShowing) { 1014 mCustomContentShowing = true; 1015 if (mCustomContentCallbacks != null) { 1016 mCustomContentCallbacks.onShow(); 1017 mCustomContentShowTime = System.currentTimeMillis(); 1018 } 1019 } else if (hasCustomContent() && getNextPage() != 0 && mCustomContentShowing) { 1020 mCustomContentShowing = false; 1021 if (mCustomContentCallbacks != null) { 1022 mCustomContentCallbacks.onHide(); 1023 mLauncher.resetQSBScroll(); 1024 } 1025 } 1026 } 1027 1028 @Override 1029 protected void notifyPageSwitchListener() { 1030 super.notifyPageSwitchListener(); 1031 Launcher.setScreen(mCurrentPage); 1032 }; 1033 1034 protected void setWallpaperDimension() { 1035 String spKey = WallpaperCropActivity.getSharedPreferencesKey(); 1036 SharedPreferences sp = mLauncher.getSharedPreferences(spKey, Context.MODE_PRIVATE); 1037 WallpaperPickerActivity.suggestWallpaperDimension(mLauncher.getResources(), 1038 sp, mLauncher.getWindowManager(), mWallpaperManager); 1039 } 1040 1041 1042 1043 1044 protected void snapToPage(int whichPage, Runnable r) { 1045 if (mDelayedSnapToPageRunnable != null) { 1046 mDelayedSnapToPageRunnable.run(); 1047 } 1048 mDelayedSnapToPageRunnable = r; 1049 snapToPage(whichPage, SLOW_PAGE_SNAP_ANIMATION_DURATION); 1050 } 1051 1052 protected void snapToScreenId(long screenId, Runnable r) { 1053 snapToPage(getPageIndexForScreenId(screenId), r); 1054 } 1055 1056 class WallpaperOffsetInterpolator implements Choreographer.FrameCallback { 1057 float mFinalOffset = 0.0f; 1058 float mCurrentOffset = 0.5f; // to force an initial update 1059 //long mLastWallpaperOffsetUpdateTime; 1060 boolean mWaitingForUpdate; 1061 Choreographer mChoreographer; 1062 Interpolator mInterpolator; 1063 boolean mAnimating; 1064 long mAnimationStartTime; 1065 float mAnimationStartOffset; 1066 final int ANIMATION_DURATION = 250; 1067 int mNumScreens; 1068 1069 public WallpaperOffsetInterpolator() { 1070 mChoreographer = Choreographer.getInstance(); 1071 mInterpolator = new DecelerateInterpolator(1.5f); 1072 } 1073 1074 @Override 1075 public void doFrame(long frameTimeNanos) { 1076 updateOffset(false); 1077 } 1078 1079 1080 private void updateOffset(boolean force) { 1081 if (mWaitingForUpdate || force) { 1082 mWaitingForUpdate = false; 1083 if (computeScrollOffset() && mWindowToken != null) { 1084 try { 1085 mWallpaperManager.setWallpaperOffsets(mWindowToken, 1086 mWallpaperOffset.getCurrX(), 0.5f); 1087 setWallpaperOffsetSteps(); 1088 } catch (IllegalArgumentException e) { 1089 Log.e(TAG, "Error updating wallpaper offset: " + e); 1090 } 1091 } 1092 } 1093 } 1094 1095 public boolean computeScrollOffset() { 1096 final float oldOffset = mCurrentOffset; 1097 if (mAnimating) { 1098 long durationSinceAnimation = System.currentTimeMillis() - mAnimationStartTime; 1099 float t0 = durationSinceAnimation / (float) ANIMATION_DURATION; 1100 float t1 = mInterpolator.getInterpolation(t0); 1101 mCurrentOffset = mAnimationStartOffset + 1102 (mFinalOffset - mAnimationStartOffset) * t1; 1103 mAnimating = durationSinceAnimation < ANIMATION_DURATION; 1104 } else { 1105 mCurrentOffset = mFinalOffset; 1106 } 1107 1108 if (Math.abs(mCurrentOffset - mFinalOffset) > 0.0000001f) { 1109 scheduleUpdate(); 1110 } 1111 if (Math.abs(oldOffset - mCurrentOffset) > 0.0000001f) { 1112 return true; 1113 } 1114 return false; 1115 } 1116 1117 private float wallpaperOffsetForCurrentScroll() { 1118 if (getChildCount() <= 1) { 1119 return 0; 1120 } 1121 final int lastIndex = isLayoutRtl() ? 0 : getChildCount() - 1; 1122 final int firstIndex = isLayoutRtl() ? getChildCount() - 2 : 1; 1123 int firstPageScrollX = getScrollForPage(firstIndex); 1124 int scrollRange = getScrollForPage(lastIndex) - firstPageScrollX; 1125 if (scrollRange == 0) { 1126 return 0; 1127 } else { 1128 // do different behavior if it's a live wallpaper? 1129 float offset = (getScrollX() - firstPageScrollX) / (float) scrollRange; 1130 return offset; 1131 } 1132 } 1133 1134 public void syncWithScroll() { 1135 float offset = wallpaperOffsetForCurrentScroll(); 1136 mWallpaperOffset.setFinalX(offset); 1137 updateOffset(true); 1138 } 1139 1140 public float getCurrX() { 1141 return mCurrentOffset; 1142 } 1143 1144 public float getFinalX() { 1145 return mFinalOffset; 1146 } 1147 1148 private void animateToFinal() { 1149 mAnimating = true; 1150 mAnimationStartOffset = mCurrentOffset; 1151 mAnimationStartTime = System.currentTimeMillis(); 1152 } 1153 1154 private void setWallpaperOffsetSteps() { 1155 // Set wallpaper offset steps (1 / (number of screens - 1)) 1156 mWallpaperManager.setWallpaperOffsetSteps(1.0f / (getChildCount() - 1), 1.0f); 1157 } 1158 1159 public void setFinalX(float x) { 1160 scheduleUpdate(); 1161 mFinalOffset = Math.max(0f, Math.min(x, 1.0f)); 1162 if (getChildCount() != mNumScreens) { 1163 if (mNumScreens > 0) { 1164 // Don't animate if we're going from 0 screens 1165 animateToFinal(); 1166 } 1167 mNumScreens = getChildCount(); 1168 } 1169 } 1170 1171 private void scheduleUpdate() { 1172 if (!mWaitingForUpdate) { 1173 mChoreographer.postFrameCallback(this); 1174 mWaitingForUpdate = true; 1175 } 1176 } 1177 1178 public void jumpToFinal() { 1179 mCurrentOffset = mFinalOffset; 1180 } 1181 } 1182 1183 @Override 1184 public void computeScroll() { 1185 super.computeScroll(); 1186 mWallpaperOffset.syncWithScroll(); 1187 } 1188 1189 void showOutlines() { 1190 if (!isSmall() && !mIsSwitchingState) { 1191 if (mChildrenOutlineFadeOutAnimation != null) mChildrenOutlineFadeOutAnimation.cancel(); 1192 if (mChildrenOutlineFadeInAnimation != null) mChildrenOutlineFadeInAnimation.cancel(); 1193 mChildrenOutlineFadeInAnimation = LauncherAnimUtils.ofFloat(this, "childrenOutlineAlpha", 1.0f); 1194 mChildrenOutlineFadeInAnimation.setDuration(CHILDREN_OUTLINE_FADE_IN_DURATION); 1195 mChildrenOutlineFadeInAnimation.start(); 1196 } 1197 } 1198 1199 void hideOutlines() { 1200 if (!isSmall() && !mIsSwitchingState) { 1201 if (mChildrenOutlineFadeInAnimation != null) mChildrenOutlineFadeInAnimation.cancel(); 1202 if (mChildrenOutlineFadeOutAnimation != null) mChildrenOutlineFadeOutAnimation.cancel(); 1203 mChildrenOutlineFadeOutAnimation = LauncherAnimUtils.ofFloat(this, "childrenOutlineAlpha", 0.0f); 1204 mChildrenOutlineFadeOutAnimation.setDuration(CHILDREN_OUTLINE_FADE_OUT_DURATION); 1205 mChildrenOutlineFadeOutAnimation.setStartDelay(CHILDREN_OUTLINE_FADE_OUT_DELAY); 1206 mChildrenOutlineFadeOutAnimation.start(); 1207 } 1208 } 1209 1210 public void showOutlinesTemporarily() { 1211 if (!mIsPageMoving && !isTouchActive()) { 1212 snapToPage(mCurrentPage); 1213 } 1214 } 1215 1216 public void setChildrenOutlineAlpha(float alpha) { 1217 mChildrenOutlineAlpha = alpha; 1218 for (int i = 0; i < getChildCount(); i++) { 1219 CellLayout cl = (CellLayout) getChildAt(i); 1220 cl.setBackgroundAlpha(alpha); 1221 } 1222 } 1223 1224 public float getChildrenOutlineAlpha() { 1225 return mChildrenOutlineAlpha; 1226 } 1227 1228 void disableBackground() { 1229 mDrawBackground = false; 1230 } 1231 void enableBackground() { 1232 mDrawBackground = true; 1233 } 1234 1235 private void animateBackgroundGradient(float finalAlpha, boolean animated) { 1236 if (mBackground == null) return; 1237 if (mBackgroundFadeInAnimation != null) { 1238 mBackgroundFadeInAnimation.cancel(); 1239 mBackgroundFadeInAnimation = null; 1240 } 1241 if (mBackgroundFadeOutAnimation != null) { 1242 mBackgroundFadeOutAnimation.cancel(); 1243 mBackgroundFadeOutAnimation = null; 1244 } 1245 float startAlpha = getBackgroundAlpha(); 1246 if (finalAlpha != startAlpha) { 1247 if (animated) { 1248 mBackgroundFadeOutAnimation = 1249 LauncherAnimUtils.ofFloat(this, startAlpha, finalAlpha); 1250 mBackgroundFadeOutAnimation.addUpdateListener(new AnimatorUpdateListener() { 1251 public void onAnimationUpdate(ValueAnimator animation) { 1252 setBackgroundAlpha(((Float) animation.getAnimatedValue()).floatValue()); 1253 } 1254 }); 1255 mBackgroundFadeOutAnimation.setInterpolator(new DecelerateInterpolator(1.5f)); 1256 mBackgroundFadeOutAnimation.setDuration(BACKGROUND_FADE_OUT_DURATION); 1257 mBackgroundFadeOutAnimation.start(); 1258 } else { 1259 setBackgroundAlpha(finalAlpha); 1260 } 1261 } 1262 } 1263 1264 public void setBackgroundAlpha(float alpha) { 1265 if (alpha != mBackgroundAlpha) { 1266 mBackgroundAlpha = alpha; 1267 invalidate(); 1268 } 1269 } 1270 1271 public float getBackgroundAlpha() { 1272 return mBackgroundAlpha; 1273 } 1274 1275 float backgroundAlphaInterpolator(float r) { 1276 float pivotA = 0.1f; 1277 float pivotB = 0.4f; 1278 if (r < pivotA) { 1279 return 0; 1280 } else if (r > pivotB) { 1281 return 1.0f; 1282 } else { 1283 return (r - pivotA)/(pivotB - pivotA); 1284 } 1285 } 1286 1287 private void updatePageAlphaValues(int screenCenter) { 1288 boolean isInOverscroll = mOverScrollX < 0 || mOverScrollX > mMaxScrollX; 1289 if (mWorkspaceFadeInAdjacentScreens && 1290 mState == State.NORMAL && 1291 !mIsSwitchingState && 1292 !isInOverscroll) { 1293 for (int i = 0; i < getChildCount(); i++) { 1294 CellLayout child = (CellLayout) getChildAt(i); 1295 if (child != null) { 1296 float scrollProgress = getScrollProgress(screenCenter, child, i); 1297 float alpha = 1 - Math.abs(scrollProgress); 1298 child.getShortcutsAndWidgets().setAlpha(alpha); 1299 if (!mIsDragOccuring) { 1300 child.setBackgroundAlphaMultiplier( 1301 backgroundAlphaInterpolator(Math.abs(scrollProgress))); 1302 } else { 1303 child.setBackgroundAlphaMultiplier(1f); 1304 } 1305 } 1306 } 1307 } 1308 } 1309 1310 private void setChildrenBackgroundAlphaMultipliers(float a) { 1311 for (int i = 0; i < getChildCount(); i++) { 1312 CellLayout child = (CellLayout) getChildAt(i); 1313 child.setBackgroundAlphaMultiplier(a); 1314 } 1315 } 1316 1317 public boolean hasCustomContent() { 1318 return (mScreenOrder.size() > 0 && mScreenOrder.get(0) == CUSTOM_CONTENT_SCREEN_ID); 1319 } 1320 1321 public boolean isOnOrMovingToCustomContent() { 1322 return hasCustomContent() && getNextPage() == 0; 1323 } 1324 1325 private void updateStateForCustomContent(int screenCenter) { 1326 float translationX = 0; 1327 float progress = 0; 1328 if (hasCustomContent()) { 1329 int index = mScreenOrder.indexOf(CUSTOM_CONTENT_SCREEN_ID); 1330 int scrollDelta = getScrollForPage(index + 1) - getScrollX(); 1331 translationX = Math.max(scrollDelta, 0); 1332 progress = (1.0f * scrollDelta) / 1333 (getScrollForPage(index + 1) - getScrollForPage(index)); 1334 progress = Math.max(0, progress); 1335 } 1336 1337 if (Float.compare(progress, mLastCustomContentScrollProgress) == 0) return; 1338 mLastCustomContentScrollProgress = progress; 1339 1340 setBackgroundAlpha(progress * 0.8f); 1341 1342 if (mLauncher.getHotseat() != null) { 1343 mLauncher.getHotseat().setTranslationX(translationX); 1344 } 1345 1346 if (getPageIndicator() != null) { 1347 getPageIndicator().setTranslationX(translationX); 1348 } 1349 1350 if (mCustomContentCallbacks != null) { 1351 mCustomContentCallbacks.onScrollProgressChanged(progress); 1352 } 1353 } 1354 1355 @Override 1356 protected void screenScrolled(int screenCenter) { 1357 final boolean isRtl = isLayoutRtl(); 1358 super.screenScrolled(screenCenter); 1359 1360 updatePageAlphaValues(screenCenter); 1361 updateStateForCustomContent(screenCenter); 1362 enableHwLayersOnVisiblePages(); 1363 1364 if ((mOverScrollX < 0 && !hasCustomContent()) || mOverScrollX > mMaxScrollX) { 1365 int index = 0; 1366 float pivotX = 0f; 1367 final float leftBiasedPivot = 0.25f; 1368 final float rightBiasedPivot = 0.75f; 1369 final int lowerIndex = 0; 1370 final int upperIndex = getChildCount() - 1; 1371 if (isRtl) { 1372 index = mOverScrollX < 0 ? upperIndex : lowerIndex; 1373 pivotX = (index == 0 ? leftBiasedPivot : rightBiasedPivot); 1374 } else { 1375 index = mOverScrollX < 0 ? lowerIndex : upperIndex; 1376 pivotX = (index == 0 ? rightBiasedPivot : leftBiasedPivot); 1377 } 1378 1379 CellLayout cl = (CellLayout) getChildAt(index); 1380 float scrollProgress = getScrollProgress(screenCenter, cl, index); 1381 final boolean isLeftPage = (isRtl ? index > 0 : index == 0); 1382 cl.setOverScrollAmount(Math.abs(scrollProgress), isLeftPage); 1383 float rotation = -WORKSPACE_OVERSCROLL_ROTATION * scrollProgress; 1384 cl.setRotationY(rotation); 1385 if (!mOverscrollTransformsSet) { 1386 mOverscrollTransformsSet = true; 1387 cl.setCameraDistance(mDensity * mCameraDistance); 1388 cl.setPivotX(cl.getMeasuredWidth() * pivotX); 1389 cl.setPivotY(cl.getMeasuredHeight() * 0.5f); 1390 cl.setOverscrollTransformsDirty(true); 1391 } 1392 } else { 1393 if (mOverscrollTransformsSet) { 1394 mOverscrollTransformsSet = false; 1395 ((CellLayout) getChildAt(0)).resetOverscrollTransforms(); 1396 ((CellLayout) getChildAt(getChildCount() - 1)).resetOverscrollTransforms(); 1397 } 1398 } 1399 } 1400 1401 @Override 1402 protected void overScroll(float amount) { 1403 acceleratedOverScroll(amount); 1404 } 1405 1406 protected void onAttachedToWindow() { 1407 super.onAttachedToWindow(); 1408 mWindowToken = getWindowToken(); 1409 computeScroll(); 1410 mDragController.setWindowToken(mWindowToken); 1411 } 1412 1413 protected void onDetachedFromWindow() { 1414 super.onDetachedFromWindow(); 1415 mWindowToken = null; 1416 } 1417 1418 @Override 1419 protected void onLayout(boolean changed, int left, int top, int right, int bottom) { 1420 if (mFirstLayout && mCurrentPage >= 0 && mCurrentPage < getChildCount()) { 1421 mWallpaperOffset.syncWithScroll(); 1422 mWallpaperOffset.jumpToFinal(); 1423 } 1424 super.onLayout(changed, left, top, right, bottom); 1425 } 1426 1427 @Override 1428 protected void onDraw(Canvas canvas) { 1429 // Draw the background gradient if necessary 1430 if (mBackground != null && mBackgroundAlpha > 0.0f && mDrawBackground) { 1431 int alpha = (int) (mBackgroundAlpha * 255); 1432 mBackground.setAlpha(alpha); 1433 mBackground.setBounds(getScrollX(), 0, getScrollX() + getMeasuredWidth(), 1434 getMeasuredHeight()); 1435 mBackground.draw(canvas); 1436 } 1437 1438 super.onDraw(canvas); 1439 1440 // Call back to LauncherModel to finish binding after the first draw 1441 post(mBindPages); 1442 } 1443 1444 boolean isDrawingBackgroundGradient() { 1445 return (mBackground != null && mBackgroundAlpha > 0.0f && mDrawBackground); 1446 } 1447 1448 @Override 1449 protected boolean onRequestFocusInDescendants(int direction, Rect previouslyFocusedRect) { 1450 if (!mLauncher.isAllAppsVisible()) { 1451 final Folder openFolder = getOpenFolder(); 1452 if (openFolder != null) { 1453 return openFolder.requestFocus(direction, previouslyFocusedRect); 1454 } else { 1455 return super.onRequestFocusInDescendants(direction, previouslyFocusedRect); 1456 } 1457 } 1458 return false; 1459 } 1460 1461 @Override 1462 public int getDescendantFocusability() { 1463 if (isSmall()) { 1464 return ViewGroup.FOCUS_BLOCK_DESCENDANTS; 1465 } 1466 return super.getDescendantFocusability(); 1467 } 1468 1469 @Override 1470 public void addFocusables(ArrayList<View> views, int direction, int focusableMode) { 1471 if (!mLauncher.isAllAppsVisible()) { 1472 final Folder openFolder = getOpenFolder(); 1473 if (openFolder != null) { 1474 openFolder.addFocusables(views, direction); 1475 } else { 1476 super.addFocusables(views, direction, focusableMode); 1477 } 1478 } 1479 } 1480 1481 public boolean isSmall() { 1482 return mState == State.SMALL || mState == State.SPRING_LOADED || mState == State.OVERVIEW; 1483 } 1484 1485 void enableChildrenCache(int fromPage, int toPage) { 1486 if (fromPage > toPage) { 1487 final int temp = fromPage; 1488 fromPage = toPage; 1489 toPage = temp; 1490 } 1491 1492 final int screenCount = getChildCount(); 1493 1494 fromPage = Math.max(fromPage, 0); 1495 toPage = Math.min(toPage, screenCount - 1); 1496 1497 for (int i = fromPage; i <= toPage; i++) { 1498 final CellLayout layout = (CellLayout) getChildAt(i); 1499 layout.setChildrenDrawnWithCacheEnabled(true); 1500 layout.setChildrenDrawingCacheEnabled(true); 1501 } 1502 } 1503 1504 void clearChildrenCache() { 1505 final int screenCount = getChildCount(); 1506 for (int i = 0; i < screenCount; i++) { 1507 final CellLayout layout = (CellLayout) getChildAt(i); 1508 layout.setChildrenDrawnWithCacheEnabled(false); 1509 // In software mode, we don't want the items to continue to be drawn into bitmaps 1510 if (!isHardwareAccelerated()) { 1511 layout.setChildrenDrawingCacheEnabled(false); 1512 } 1513 } 1514 } 1515 1516 private void updateChildrenLayersEnabled(boolean force) { 1517 boolean small = mState == State.SMALL || mState == State.OVERVIEW || mIsSwitchingState; 1518 boolean enableChildrenLayers = force || small || mAnimatingViewIntoPlace || isPageMoving(); 1519 1520 if (enableChildrenLayers != mChildrenLayersEnabled) { 1521 mChildrenLayersEnabled = enableChildrenLayers; 1522 if (mChildrenLayersEnabled) { 1523 enableHwLayersOnVisiblePages(); 1524 } else { 1525 for (int i = 0; i < getPageCount(); i++) { 1526 final CellLayout cl = (CellLayout) getChildAt(i); 1527 cl.disableHardwareLayers(); 1528 } 1529 } 1530 } 1531 } 1532 1533 private void enableHwLayersOnVisiblePages() { 1534 if (mChildrenLayersEnabled) { 1535 final int screenCount = getChildCount(); 1536 getVisiblePages(mTempVisiblePagesRange); 1537 int leftScreen = mTempVisiblePagesRange[0]; 1538 int rightScreen = mTempVisiblePagesRange[1]; 1539 if (leftScreen == rightScreen) { 1540 // make sure we're caching at least two pages always 1541 if (rightScreen < screenCount - 1) { 1542 rightScreen++; 1543 } else if (leftScreen > 0) { 1544 leftScreen--; 1545 } 1546 } 1547 for (int i = 0; i < screenCount; i++) { 1548 final CellLayout layout = (CellLayout) getPageAt(i); 1549 if (!(leftScreen <= i && i <= rightScreen && shouldDrawChild(layout))) { 1550 layout.disableHardwareLayers(); 1551 } 1552 } 1553 for (int i = 0; i < screenCount; i++) { 1554 final CellLayout layout = (CellLayout) getPageAt(i); 1555 if (leftScreen <= i && i <= rightScreen && shouldDrawChild(layout)) { 1556 layout.enableHardwareLayers(); 1557 } 1558 } 1559 } 1560 } 1561 1562 public void buildPageHardwareLayers() { 1563 // force layers to be enabled just for the call to buildLayer 1564 updateChildrenLayersEnabled(true); 1565 if (getWindowToken() != null) { 1566 final int childCount = getChildCount(); 1567 for (int i = 0; i < childCount; i++) { 1568 CellLayout cl = (CellLayout) getChildAt(i); 1569 cl.buildHardwareLayer(); 1570 } 1571 } 1572 updateChildrenLayersEnabled(false); 1573 } 1574 1575 protected void onWallpaperTap(MotionEvent ev) { 1576 final int[] position = mTempCell; 1577 getLocationOnScreen(position); 1578 1579 int pointerIndex = ev.getActionIndex(); 1580 position[0] += (int) ev.getX(pointerIndex); 1581 position[1] += (int) ev.getY(pointerIndex); 1582 1583 mWallpaperManager.sendWallpaperCommand(getWindowToken(), 1584 ev.getAction() == MotionEvent.ACTION_UP 1585 ? WallpaperManager.COMMAND_TAP : WallpaperManager.COMMAND_SECONDARY_TAP, 1586 position[0], position[1], 0, null); 1587 } 1588 1589 /* 1590 * This interpolator emulates the rate at which the perceived scale of an object changes 1591 * as its distance from a camera increases. When this interpolator is applied to a scale 1592 * animation on a view, it evokes the sense that the object is shrinking due to moving away 1593 * from the camera. 1594 */ 1595 static class ZInterpolator implements TimeInterpolator { 1596 private float focalLength; 1597 1598 public ZInterpolator(float foc) { 1599 focalLength = foc; 1600 } 1601 1602 public float getInterpolation(float input) { 1603 return (1.0f - focalLength / (focalLength + input)) / 1604 (1.0f - focalLength / (focalLength + 1.0f)); 1605 } 1606 } 1607 1608 /* 1609 * The exact reverse of ZInterpolator. 1610 */ 1611 static class InverseZInterpolator implements TimeInterpolator { 1612 private ZInterpolator zInterpolator; 1613 public InverseZInterpolator(float foc) { 1614 zInterpolator = new ZInterpolator(foc); 1615 } 1616 public float getInterpolation(float input) { 1617 return 1 - zInterpolator.getInterpolation(1 - input); 1618 } 1619 } 1620 1621 /* 1622 * ZInterpolator compounded with an ease-out. 1623 */ 1624 static class ZoomOutInterpolator implements TimeInterpolator { 1625 private final DecelerateInterpolator decelerate = new DecelerateInterpolator(0.75f); 1626 private final ZInterpolator zInterpolator = new ZInterpolator(0.13f); 1627 1628 public float getInterpolation(float input) { 1629 return decelerate.getInterpolation(zInterpolator.getInterpolation(input)); 1630 } 1631 } 1632 1633 /* 1634 * InvereZInterpolator compounded with an ease-out. 1635 */ 1636 static class ZoomInInterpolator implements TimeInterpolator { 1637 private final InverseZInterpolator inverseZInterpolator = new InverseZInterpolator(0.35f); 1638 private final DecelerateInterpolator decelerate = new DecelerateInterpolator(3.0f); 1639 1640 public float getInterpolation(float input) { 1641 return decelerate.getInterpolation(inverseZInterpolator.getInterpolation(input)); 1642 } 1643 } 1644 1645 private final ZoomInInterpolator mZoomInInterpolator = new ZoomInInterpolator(); 1646 1647 /* 1648 * 1649 * We call these methods (onDragStartedWithItemSpans/onDragStartedWithSize) whenever we 1650 * start a drag in Launcher, regardless of whether the drag has ever entered the Workspace 1651 * 1652 * These methods mark the appropriate pages as accepting drops (which alters their visual 1653 * appearance). 1654 * 1655 */ 1656 public void onDragStartedWithItem(View v) { 1657 final Canvas canvas = new Canvas(); 1658 1659 // The outline is used to visualize where the item will land if dropped 1660 mDragOutline = createDragOutline(v, canvas, DRAG_BITMAP_PADDING); 1661 } 1662 1663 public void onDragStartedWithItem(PendingAddItemInfo info, Bitmap b, boolean clipAlpha) { 1664 final Canvas canvas = new Canvas(); 1665 1666 int[] size = estimateItemSize(info.spanX, info.spanY, info, false); 1667 1668 // The outline is used to visualize where the item will land if dropped 1669 mDragOutline = createDragOutline(b, canvas, DRAG_BITMAP_PADDING, size[0], 1670 size[1], clipAlpha); 1671 } 1672 1673 public void exitWidgetResizeMode() { 1674 DragLayer dragLayer = mLauncher.getDragLayer(); 1675 dragLayer.clearAllResizeFrames(); 1676 } 1677 1678 private void initAnimationArrays() { 1679 final int childCount = getChildCount(); 1680 if (mLastChildCount == childCount) return; 1681 1682 mOldBackgroundAlphas = new float[childCount]; 1683 mOldAlphas = new float[childCount]; 1684 mNewBackgroundAlphas = new float[childCount]; 1685 mNewAlphas = new float[childCount]; 1686 } 1687 1688 Animator getChangeStateAnimation(final State state, boolean animated) { 1689 return getChangeStateAnimation(state, animated, 0, -1); 1690 } 1691 1692 @Override 1693 protected void getOverviewModePages(int[] range) { 1694 int count = mScreenOrder.size(); 1695 1696 int start = hasCustomContent() ? 1 : 0; 1697 int end = getChildCount() - 1; 1698 1699 range[0] = Math.max(0, Math.min(start, getChildCount() - 1)); 1700 range[1] = Math.max(0, end); 1701 } 1702 1703 protected void onStartReordering() { 1704 super.onStartReordering(); 1705 int count = getChildCount(); 1706 for (int i = 0; i < count; i++) { 1707 ((CellLayout) getChildAt(i)).setUseActiveGlowBackground(true); 1708 } 1709 showOutlines(); 1710 1711 // Reordering handles its own animations, disable the automatic ones. 1712 setLayoutTransition(null); 1713 } 1714 1715 protected void onEndReordering() { 1716 super.onEndReordering(); 1717 int count = getChildCount(); 1718 for (int i = 0; i < count; i++) { 1719 ((CellLayout) getChildAt(i)).setUseActiveGlowBackground(false); 1720 } 1721 hideOutlines(); 1722 1723 mScreenOrder.clear(); 1724 for (int i = 0; i < count; i++) { 1725 CellLayout cl = ((CellLayout) getChildAt(i)); 1726 mScreenOrder.add(getIdForScreen(cl)); 1727 } 1728 1729 mLauncher.getModel().updateWorkspaceScreenOrder(mLauncher, mScreenOrder); 1730 1731 // Re-enable auto layout transitions for page deletion. 1732 setLayoutTransition(mLayoutTransition); 1733 } 1734 1735 public boolean isInOverviewMode() { 1736 return mState == State.OVERVIEW; 1737 } 1738 1739 public void enterOverviewMode() { 1740 mLauncher.onInteractionBegin(); 1741 enableOverviewMode(true, -1, true); 1742 } 1743 1744 public void exitOverviewMode(boolean animated) { 1745 exitOverviewMode(-1, animated); 1746 mLauncher.onInteractionEnd(); 1747 } 1748 1749 public void exitOverviewMode(int snapPage, boolean animated) { 1750 enableOverviewMode(false, snapPage, animated); 1751 mLauncher.onInteractionEnd(); 1752 } 1753 1754 private void enableOverviewMode(boolean enable, int snapPage, boolean animated) { 1755 State finalState = Workspace.State.OVERVIEW; 1756 if (!enable) { 1757 finalState = Workspace.State.NORMAL; 1758 } 1759 1760 Animator workspaceAnim = getChangeStateAnimation(finalState, animated, 0, snapPage); 1761 if (workspaceAnim != null) { 1762 onTransitionPrepare(); 1763 workspaceAnim.addListener(new AnimatorListenerAdapter() { 1764 @Override 1765 public void onAnimationEnd(Animator arg0) { 1766 onTransitionEnd(); 1767 } 1768 }); 1769 workspaceAnim.start(); 1770 } 1771 } 1772 1773 Animator getChangeStateAnimation(final State state, boolean animated, int delay, int snapPage) { 1774 if (mState == state) { 1775 return null; 1776 } 1777 1778 // Initialize animation arrays for the first time if necessary 1779 initAnimationArrays(); 1780 1781 AnimatorSet anim = animated ? LauncherAnimUtils.createAnimatorSet() : null; 1782 1783 final State oldState = mState; 1784 final boolean oldStateIsNormal = (oldState == State.NORMAL); 1785 final boolean oldStateIsSpringLoaded = (oldState == State.SPRING_LOADED); 1786 final boolean oldStateIsSmall = (oldState == State.SMALL); 1787 final boolean oldStateIsOverview = (oldState == State.OVERVIEW); 1788 mState = state; 1789 final boolean stateIsNormal = (state == State.NORMAL); 1790 final boolean stateIsSpringLoaded = (state == State.SPRING_LOADED); 1791 final boolean stateIsSmall = (state == State.SMALL); 1792 final boolean stateIsOverview = (state == State.OVERVIEW); 1793 float finalBackgroundAlpha = stateIsSpringLoaded ? 1.0f : 0f; 1794 float finalHotseatAndPageIndicatorAlpha = (stateIsOverview || stateIsSmall) ? 0f : 1f; 1795 float finalOverviewPanelAlpha = stateIsOverview ? 1f : 0f; 1796 float finalSearchBarAlpha = stateIsOverview ? 0f : 1f; 1797 1798 boolean zoomIn = true; 1799 mNewScale = 1.0f; 1800 1801 if (oldStateIsOverview) { 1802 disableFreeScroll(snapPage); 1803 } else if (stateIsOverview) { 1804 enableFreeScroll(); 1805 } 1806 1807 if (state != State.NORMAL) { 1808 if (stateIsSpringLoaded) { 1809 mNewScale = mSpringLoadedShrinkFactor; 1810 } else if (stateIsOverview) { 1811 mNewScale = mOverviewModeShrinkFactor; 1812 } else if (stateIsSmall){ 1813 mNewScale = mOverviewModeShrinkFactor - 0.1f; 1814 } 1815 if (oldStateIsNormal && stateIsSmall) { 1816 zoomIn = false; 1817 updateChildrenLayersEnabled(false); 1818 } else { 1819 finalBackgroundAlpha = 1.0f; 1820 } 1821 } 1822 final int duration = zoomIn ? 1823 getResources().getInteger(R.integer.config_workspaceUnshrinkTime) : 1824 getResources().getInteger(R.integer.config_appsCustomizeWorkspaceShrinkTime); 1825 for (int i = 0; i < getChildCount(); i++) { 1826 final CellLayout cl = (CellLayout) getChildAt(i); 1827 float finalAlpha = (!mWorkspaceFadeInAdjacentScreens || stateIsSpringLoaded || 1828 (i == mCurrentPage)) ? 1f : 0f; 1829 float currentAlpha = cl.getShortcutsAndWidgets().getAlpha(); 1830 float initialAlpha = currentAlpha; 1831 1832 // Determine the pages alpha during the state transition 1833 if ((oldStateIsSmall && stateIsNormal) || 1834 (oldStateIsNormal && stateIsSmall)) { 1835 // To/from workspace - only show the current page unless the transition is not 1836 // animated and the animation end callback below doesn't run; 1837 // or, if we're in spring-loaded mode 1838 if (i == mCurrentPage || !animated || oldStateIsSpringLoaded) { 1839 finalAlpha = 1f; 1840 } else { 1841 initialAlpha = 0f; 1842 finalAlpha = 0f; 1843 } 1844 } 1845 1846 mOldAlphas[i] = initialAlpha; 1847 mNewAlphas[i] = finalAlpha; 1848 if (animated) { 1849 mOldBackgroundAlphas[i] = cl.getBackgroundAlpha(); 1850 mNewBackgroundAlphas[i] = finalBackgroundAlpha; 1851 } else { 1852 setScaleX(mNewScale); 1853 setScaleY(mNewScale); 1854 cl.setBackgroundAlpha(finalBackgroundAlpha); 1855 cl.setShortcutAndWidgetAlpha(finalAlpha); 1856 } 1857 } 1858 1859 View searchBar = mLauncher.getQsbBar(); 1860 if (animated) { 1861 LauncherViewPropertyAnimator scale = new LauncherViewPropertyAnimator(this); 1862 scale.scaleX(mNewScale) 1863 .scaleY(mNewScale) 1864 .setInterpolator(mZoomInInterpolator); 1865 anim.play(scale); 1866 for (int index = 0; index < getChildCount(); index++) { 1867 final int i = index; 1868 final CellLayout cl = (CellLayout) getChildAt(i); 1869 float currentAlpha = cl.getShortcutsAndWidgets().getAlpha(); 1870 if (mOldAlphas[i] == 0 && mNewAlphas[i] == 0) { 1871 cl.setBackgroundAlpha(mNewBackgroundAlphas[i]); 1872 cl.setShortcutAndWidgetAlpha(mNewAlphas[i]); 1873 } else { 1874 1875 if (mOldAlphas[i] != mNewAlphas[i] || currentAlpha != mNewAlphas[i]) { 1876 LauncherViewPropertyAnimator alphaAnim = 1877 new LauncherViewPropertyAnimator(cl.getShortcutsAndWidgets()); 1878 alphaAnim.alpha(mNewAlphas[i]) 1879 .setDuration(duration) 1880 .setInterpolator(mZoomInInterpolator); 1881 anim.play(alphaAnim); 1882 } 1883 if (mOldBackgroundAlphas[i] != 0 || 1884 mNewBackgroundAlphas[i] != 0) { 1885 ValueAnimator bgAnim = 1886 LauncherAnimUtils.ofFloat(cl, 0f, 1f).setDuration(duration); 1887 bgAnim.setInterpolator(mZoomInInterpolator); 1888 bgAnim.addUpdateListener(new LauncherAnimatorUpdateListener() { 1889 public void onAnimationUpdate(float a, float b) { 1890 cl.setBackgroundAlpha( 1891 a * mOldBackgroundAlphas[i] + 1892 b * mNewBackgroundAlphas[i]); 1893 } 1894 }); 1895 anim.play(bgAnim); 1896 } 1897 } 1898 } 1899 ObjectAnimator pageIndicatorAlpha = null; 1900 if (getPageIndicator() != null) { 1901 pageIndicatorAlpha = ObjectAnimator.ofFloat(getPageIndicator(), "alpha", 1902 finalHotseatAndPageIndicatorAlpha); 1903 } 1904 ObjectAnimator hotseatAlpha = ObjectAnimator.ofFloat(mLauncher.getHotseat(), "alpha", 1905 finalHotseatAndPageIndicatorAlpha); 1906 ObjectAnimator searchBarAlpha = ObjectAnimator.ofFloat(searchBar, 1907 "alpha", finalSearchBarAlpha); 1908 ObjectAnimator overviewPanelAlpha = ObjectAnimator.ofFloat(mLauncher.getOverviewPanel(), 1909 "alpha", finalOverviewPanelAlpha); 1910 overviewPanelAlpha.addUpdateListener(new AlphaUpdateListener( 1911 mLauncher.getOverviewPanel())); 1912 hotseatAlpha.addUpdateListener(new AlphaUpdateListener(mLauncher.getHotseat())); 1913 searchBarAlpha.addUpdateListener(new AlphaUpdateListener(searchBar)); 1914 if (getPageIndicator() != null) { 1915 pageIndicatorAlpha.addUpdateListener(new AlphaUpdateListener(getPageIndicator())); 1916 } 1917 anim.play(overviewPanelAlpha); 1918 anim.play(hotseatAlpha); 1919 anim.play(searchBarAlpha); 1920 anim.play(pageIndicatorAlpha); 1921 anim.setStartDelay(delay); 1922 } else { 1923 mLauncher.getOverviewPanel().setAlpha(finalOverviewPanelAlpha); 1924 AlphaUpdateListener.updateVisibility(mLauncher.getOverviewPanel()); 1925 mLauncher.getHotseat().setAlpha(finalHotseatAndPageIndicatorAlpha); 1926 AlphaUpdateListener.updateVisibility(mLauncher.getHotseat()); 1927 if (getPageIndicator() != null) { 1928 getPageIndicator().setAlpha(finalHotseatAndPageIndicatorAlpha); 1929 AlphaUpdateListener.updateVisibility(getPageIndicator()); 1930 } 1931 searchBar.setAlpha(finalSearchBarAlpha); 1932 AlphaUpdateListener.updateVisibility(searchBar); 1933 updateCustomContentVisibility(); 1934 } 1935 if (finalSearchBarAlpha == 0) { 1936 mLauncher.setVoiceButtonProxyVisible(false); 1937 } else { 1938 mLauncher.setVoiceButtonProxyVisible(true); 1939 } 1940 1941 if (stateIsSpringLoaded) { 1942 // Right now we're covered by Apps Customize 1943 // Show the background gradient immediately, so the gradient will 1944 // be showing once AppsCustomize disappears 1945 animateBackgroundGradient(getResources().getInteger( 1946 R.integer.config_appsCustomizeSpringLoadedBgAlpha) / 100f, false); 1947 } else if (stateIsOverview) { 1948 animateBackgroundGradient(getResources().getInteger( 1949 R.integer.config_appsCustomizeSpringLoadedBgAlpha) / 100f, true); 1950 } else { 1951 // Fade the background gradient away 1952 animateBackgroundGradient(0f, true); 1953 } 1954 return anim; 1955 } 1956 1957 static class AlphaUpdateListener implements AnimatorUpdateListener { 1958 View view; 1959 public AlphaUpdateListener(View v) { 1960 view = v; 1961 } 1962 1963 @Override 1964 public void onAnimationUpdate(ValueAnimator arg0) { 1965 updateVisibility(view); 1966 } 1967 1968 public static void updateVisibility(View view) { 1969 if (view.getAlpha() < ALPHA_CUTOFF_THRESHOLD && view.getVisibility() != INVISIBLE) { 1970 view.setVisibility(INVISIBLE); 1971 } else if (view.getAlpha() > ALPHA_CUTOFF_THRESHOLD 1972 && view.getVisibility() != VISIBLE) { 1973 view.setVisibility(VISIBLE); 1974 } 1975 } 1976 } 1977 1978 @Override 1979 public void onLauncherTransitionPrepare(Launcher l, boolean animated, boolean toWorkspace) { 1980 onTransitionPrepare(); 1981 } 1982 1983 @Override 1984 public void onLauncherTransitionStart(Launcher l, boolean animated, boolean toWorkspace) { 1985 } 1986 1987 @Override 1988 public void onLauncherTransitionStep(Launcher l, float t) { 1989 mTransitionProgress = t; 1990 } 1991 1992 @Override 1993 public void onLauncherTransitionEnd(Launcher l, boolean animated, boolean toWorkspace) { 1994 onTransitionEnd(); 1995 } 1996 1997 private void onTransitionPrepare() { 1998 mIsSwitchingState = true; 1999 updateChildrenLayersEnabled(false); 2000 hideCustomContentIfNecessary(); 2001 } 2002 2003 void updateCustomContentVisibility() { 2004 int visibility = mState == Workspace.State.NORMAL ? VISIBLE : INVISIBLE; 2005 if (hasCustomContent()) { 2006 mWorkspaceScreens.get(CUSTOM_CONTENT_SCREEN_ID).setVisibility(visibility); 2007 } 2008 } 2009 2010 void showCustomContentIfNecessary() { 2011 boolean show = mState == Workspace.State.NORMAL; 2012 if (show && hasCustomContent()) { 2013 mWorkspaceScreens.get(CUSTOM_CONTENT_SCREEN_ID).setVisibility(VISIBLE); 2014 } 2015 } 2016 2017 void hideCustomContentIfNecessary() { 2018 boolean hide = mState != Workspace.State.NORMAL; 2019 if (hide && hasCustomContent()) { 2020 mWorkspaceScreens.get(CUSTOM_CONTENT_SCREEN_ID).setVisibility(INVISIBLE); 2021 } 2022 } 2023 2024 private void onTransitionEnd() { 2025 mIsSwitchingState = false; 2026 updateChildrenLayersEnabled(false); 2027 // The code in getChangeStateAnimation to determine initialAlpha and finalAlpha will ensure 2028 // ensure that only the current page is visible during (and subsequently, after) the 2029 // transition animation. If fade adjacent pages is disabled, then re-enable the page 2030 // visibility after the transition animation. 2031 if (!mWorkspaceFadeInAdjacentScreens) { 2032 for (int i = 0; i < getChildCount(); i++) { 2033 final CellLayout cl = (CellLayout) getChildAt(i); 2034 cl.setShortcutAndWidgetAlpha(1f); 2035 } 2036 } 2037 showCustomContentIfNecessary(); 2038 } 2039 2040 @Override 2041 public View getContent() { 2042 return this; 2043 } 2044 2045 /** 2046 * Draw the View v into the given Canvas. 2047 * 2048 * @param v the view to draw 2049 * @param destCanvas the canvas to draw on 2050 * @param padding the horizontal and vertical padding to use when drawing 2051 */ 2052 private void drawDragView(View v, Canvas destCanvas, int padding, boolean pruneToDrawable) { 2053 final Rect clipRect = mTempRect; 2054 v.getDrawingRect(clipRect); 2055 2056 boolean textVisible = false; 2057 2058 destCanvas.save(); 2059 if (v instanceof TextView && pruneToDrawable) { 2060 Drawable d = ((TextView) v).getCompoundDrawables()[1]; 2061 clipRect.set(0, 0, d.getIntrinsicWidth() + padding, d.getIntrinsicHeight() + padding); 2062 destCanvas.translate(padding / 2, padding / 2); 2063 d.draw(destCanvas); 2064 } else { 2065 if (v instanceof FolderIcon) { 2066 // For FolderIcons the text can bleed into the icon area, and so we need to 2067 // hide the text completely (which can't be achieved by clipping). 2068 if (((FolderIcon) v).getTextVisible()) { 2069 ((FolderIcon) v).setTextVisible(false); 2070 textVisible = true; 2071 } 2072 } else if (v instanceof BubbleTextView) { 2073 final BubbleTextView tv = (BubbleTextView) v; 2074 clipRect.bottom = tv.getExtendedPaddingTop() - (int) BubbleTextView.PADDING_V + 2075 tv.getLayout().getLineTop(0); 2076 } else if (v instanceof TextView) { 2077 final TextView tv = (TextView) v; 2078 clipRect.bottom = tv.getExtendedPaddingTop() - tv.getCompoundDrawablePadding() + 2079 tv.getLayout().getLineTop(0); 2080 } 2081 destCanvas.translate(-v.getScrollX() + padding / 2, -v.getScrollY() + padding / 2); 2082 destCanvas.clipRect(clipRect, Op.REPLACE); 2083 v.draw(destCanvas); 2084 2085 // Restore text visibility of FolderIcon if necessary 2086 if (textVisible) { 2087 ((FolderIcon) v).setTextVisible(true); 2088 } 2089 } 2090 destCanvas.restore(); 2091 } 2092 2093 /** 2094 * Returns a new bitmap to show when the given View is being dragged around. 2095 * Responsibility for the bitmap is transferred to the caller. 2096 */ 2097 public Bitmap createDragBitmap(View v, Canvas canvas, int padding) { 2098 Bitmap b; 2099 2100 if (v instanceof TextView) { 2101 Drawable d = ((TextView) v).getCompoundDrawables()[1]; 2102 b = Bitmap.createBitmap(d.getIntrinsicWidth() + padding, 2103 d.getIntrinsicHeight() + padding, Bitmap.Config.ARGB_8888); 2104 } else { 2105 b = Bitmap.createBitmap( 2106 v.getWidth() + padding, v.getHeight() + padding, Bitmap.Config.ARGB_8888); 2107 } 2108 2109 canvas.setBitmap(b); 2110 drawDragView(v, canvas, padding, true); 2111 canvas.setBitmap(null); 2112 2113 return b; 2114 } 2115 2116 /** 2117 * Returns a new bitmap to be used as the object outline, e.g. to visualize the drop location. 2118 * Responsibility for the bitmap is transferred to the caller. 2119 */ 2120 private Bitmap createDragOutline(View v, Canvas canvas, int padding) { 2121 final int outlineColor = getResources().getColor(android.R.color.holo_blue_light); 2122 final Bitmap b = Bitmap.createBitmap( 2123 v.getWidth() + padding, v.getHeight() + padding, Bitmap.Config.ARGB_8888); 2124 2125 canvas.setBitmap(b); 2126 drawDragView(v, canvas, padding, true); 2127 mOutlineHelper.applyMediumExpensiveOutlineWithBlur(b, canvas, outlineColor, outlineColor); 2128 canvas.setBitmap(null); 2129 return b; 2130 } 2131 2132 /** 2133 * Returns a new bitmap to be used as the object outline, e.g. to visualize the drop location. 2134 * Responsibility for the bitmap is transferred to the caller. 2135 */ 2136 private Bitmap createDragOutline(Bitmap orig, Canvas canvas, int padding, int w, int h, 2137 boolean clipAlpha) { 2138 final int outlineColor = getResources().getColor(android.R.color.holo_blue_light); 2139 final Bitmap b = Bitmap.createBitmap(w, h, Bitmap.Config.ARGB_8888); 2140 canvas.setBitmap(b); 2141 2142 Rect src = new Rect(0, 0, orig.getWidth(), orig.getHeight()); 2143 float scaleFactor = Math.min((w - padding) / (float) orig.getWidth(), 2144 (h - padding) / (float) orig.getHeight()); 2145 int scaledWidth = (int) (scaleFactor * orig.getWidth()); 2146 int scaledHeight = (int) (scaleFactor * orig.getHeight()); 2147 Rect dst = new Rect(0, 0, scaledWidth, scaledHeight); 2148 2149 // center the image 2150 dst.offset((w - scaledWidth) / 2, (h - scaledHeight) / 2); 2151 2152 canvas.drawBitmap(orig, src, dst, null); 2153 mOutlineHelper.applyMediumExpensiveOutlineWithBlur(b, canvas, outlineColor, outlineColor, 2154 clipAlpha); 2155 canvas.setBitmap(null); 2156 2157 return b; 2158 } 2159 2160 void startDrag(CellLayout.CellInfo cellInfo) { 2161 View child = cellInfo.cell; 2162 2163 // Make sure the drag was started by a long press as opposed to a long click. 2164 if (!child.isInTouchMode()) { 2165 return; 2166 } 2167 2168 mDragInfo = cellInfo; 2169 child.setVisibility(INVISIBLE); 2170 CellLayout layout = (CellLayout) child.getParent().getParent(); 2171 layout.prepareChildForDrag(child); 2172 2173 child.clearFocus(); 2174 child.setPressed(false); 2175 2176 final Canvas canvas = new Canvas(); 2177 2178 // The outline is used to visualize where the item will land if dropped 2179 mDragOutline = createDragOutline(child, canvas, DRAG_BITMAP_PADDING); 2180 beginDragShared(child, this); 2181 } 2182 2183 public void beginDragShared(View child, DragSource source) { 2184 // The drag bitmap follows the touch point around on the screen 2185 final Bitmap b = createDragBitmap(child, new Canvas(), DRAG_BITMAP_PADDING); 2186 2187 final int bmpWidth = b.getWidth(); 2188 final int bmpHeight = b.getHeight(); 2189 2190 float scale = mLauncher.getDragLayer().getLocationInDragLayer(child, mTempXY); 2191 int dragLayerX = 2192 Math.round(mTempXY[0] - (bmpWidth - scale * child.getWidth()) / 2); 2193 int dragLayerY = 2194 Math.round(mTempXY[1] - (bmpHeight - scale * bmpHeight) / 2 2195 - DRAG_BITMAP_PADDING / 2); 2196 2197 LauncherAppState app = LauncherAppState.getInstance(); 2198 DeviceProfile grid = app.getDynamicGrid().getDeviceProfile(); 2199 Point dragVisualizeOffset = null; 2200 Rect dragRect = null; 2201 if (child instanceof BubbleTextView || child instanceof PagedViewIcon) { 2202 int iconSize = grid.iconSizePx; 2203 int top = child.getPaddingTop(); 2204 int left = (bmpWidth - iconSize) / 2; 2205 int right = left + iconSize; 2206 int bottom = top + iconSize; 2207 dragLayerY += top; 2208 // Note: The drag region is used to calculate drag layer offsets, but the 2209 // dragVisualizeOffset in addition to the dragRect (the size) to position the outline. 2210 dragVisualizeOffset = new Point(-DRAG_BITMAP_PADDING / 2, DRAG_BITMAP_PADDING / 2); 2211 dragRect = new Rect(left, top, right, bottom); 2212 } else if (child instanceof FolderIcon) { 2213 int previewSize = grid.folderIconSizePx; 2214 dragRect = new Rect(0, child.getPaddingTop(), child.getWidth(), previewSize); 2215 } 2216 2217 // Clear the pressed state if necessary 2218 if (child instanceof BubbleTextView) { 2219 BubbleTextView icon = (BubbleTextView) child; 2220 icon.clearPressedOrFocusedBackground(); 2221 } 2222 2223 mDragController.startDrag(b, dragLayerX, dragLayerY, source, child.getTag(), 2224 DragController.DRAG_ACTION_MOVE, dragVisualizeOffset, dragRect, scale); 2225 2226 if (child.getParent() instanceof ShortcutAndWidgetContainer) { 2227 mDragSourceInternal = (ShortcutAndWidgetContainer) child.getParent(); 2228 } 2229 2230 b.recycle(); 2231 } 2232 2233 void addApplicationShortcut(ShortcutInfo info, CellLayout target, long container, long screenId, 2234 int cellX, int cellY, boolean insertAtFirst, int intersectX, int intersectY) { 2235 View view = mLauncher.createShortcut(R.layout.application, target, (ShortcutInfo) info); 2236 2237 final int[] cellXY = new int[2]; 2238 target.findCellForSpanThatIntersects(cellXY, 1, 1, intersectX, intersectY); 2239 addInScreen(view, container, screenId, cellXY[0], cellXY[1], 1, 1, insertAtFirst); 2240 2241 LauncherModel.addOrMoveItemInDatabase(mLauncher, info, container, screenId, cellXY[0], 2242 cellXY[1]); 2243 } 2244 2245 public boolean transitionStateShouldAllowDrop() { 2246 return ((!isSwitchingState() || mTransitionProgress > 0.5f) && mState != State.SMALL); 2247 } 2248 2249 /** 2250 * {@inheritDoc} 2251 */ 2252 public boolean acceptDrop(DragObject d) { 2253 // If it's an external drop (e.g. from All Apps), check if it should be accepted 2254 CellLayout dropTargetLayout = mDropToLayout; 2255 if (d.dragSource != this) { 2256 // Don't accept the drop if we're not over a screen at time of drop 2257 if (dropTargetLayout == null) { 2258 return false; 2259 } 2260 if (!transitionStateShouldAllowDrop()) return false; 2261 2262 mDragViewVisualCenter = getDragViewVisualCenter(d.x, d.y, d.xOffset, d.yOffset, 2263 d.dragView, mDragViewVisualCenter); 2264 2265 // We want the point to be mapped to the dragTarget. 2266 if (mLauncher.isHotseatLayout(dropTargetLayout)) { 2267 mapPointFromSelfToHotseatLayout(mLauncher.getHotseat(), mDragViewVisualCenter); 2268 } else { 2269 mapPointFromSelfToChild(dropTargetLayout, mDragViewVisualCenter, null); 2270 } 2271 2272 int spanX = 1; 2273 int spanY = 1; 2274 if (mDragInfo != null) { 2275 final CellLayout.CellInfo dragCellInfo = mDragInfo; 2276 spanX = dragCellInfo.spanX; 2277 spanY = dragCellInfo.spanY; 2278 } else { 2279 final ItemInfo dragInfo = (ItemInfo) d.dragInfo; 2280 spanX = dragInfo.spanX; 2281 spanY = dragInfo.spanY; 2282 } 2283 2284 int minSpanX = spanX; 2285 int minSpanY = spanY; 2286 if (d.dragInfo instanceof PendingAddWidgetInfo) { 2287 minSpanX = ((PendingAddWidgetInfo) d.dragInfo).minSpanX; 2288 minSpanY = ((PendingAddWidgetInfo) d.dragInfo).minSpanY; 2289 } 2290 2291 mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], 2292 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, dropTargetLayout, 2293 mTargetCell); 2294 float distance = dropTargetLayout.getDistanceFromCell(mDragViewVisualCenter[0], 2295 mDragViewVisualCenter[1], mTargetCell); 2296 if (willCreateUserFolder((ItemInfo) d.dragInfo, dropTargetLayout, 2297 mTargetCell, distance, true)) { 2298 return true; 2299 } 2300 if (willAddToExistingUserFolder((ItemInfo) d.dragInfo, dropTargetLayout, 2301 mTargetCell, distance)) { 2302 return true; 2303 } 2304 2305 int[] resultSpan = new int[2]; 2306 mTargetCell = dropTargetLayout.createArea((int) mDragViewVisualCenter[0], 2307 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, spanX, spanY, 2308 null, mTargetCell, resultSpan, CellLayout.MODE_ACCEPT_DROP); 2309 boolean foundCell = mTargetCell[0] >= 0 && mTargetCell[1] >= 0; 2310 2311 // Don't accept the drop if there's no room for the item 2312 if (!foundCell) { 2313 // Don't show the message if we are dropping on the AllApps button and the hotseat 2314 // is full 2315 boolean isHotseat = mLauncher.isHotseatLayout(dropTargetLayout); 2316 if (mTargetCell != null && isHotseat) { 2317 Hotseat hotseat = mLauncher.getHotseat(); 2318 if (hotseat.isAllAppsButtonRank( 2319 hotseat.getOrderInHotseat(mTargetCell[0], mTargetCell[1]))) { 2320 return false; 2321 } 2322 } 2323 2324 mLauncher.showOutOfSpaceMessage(isHotseat); 2325 return false; 2326 } 2327 } 2328 2329 long screenId = getIdForScreen(dropTargetLayout); 2330 if (screenId == EXTRA_EMPTY_SCREEN_ID) { 2331 commitExtraEmptyScreen(); 2332 } 2333 2334 return true; 2335 } 2336 2337 boolean willCreateUserFolder(ItemInfo info, CellLayout target, int[] targetCell, float 2338 distance, boolean considerTimeout) { 2339 if (distance > mMaxDistanceForFolderCreation) return false; 2340 View dropOverView = target.getChildAt(targetCell[0], targetCell[1]); 2341 2342 if (dropOverView != null) { 2343 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) dropOverView.getLayoutParams(); 2344 if (lp.useTmpCoords && (lp.tmpCellX != lp.cellX || lp.tmpCellY != lp.tmpCellY)) { 2345 return false; 2346 } 2347 } 2348 2349 boolean hasntMoved = false; 2350 if (mDragInfo != null) { 2351 hasntMoved = dropOverView == mDragInfo.cell; 2352 } 2353 2354 if (dropOverView == null || hasntMoved || (considerTimeout && !mCreateUserFolderOnDrop)) { 2355 return false; 2356 } 2357 2358 boolean aboveShortcut = (dropOverView.getTag() instanceof ShortcutInfo); 2359 boolean willBecomeShortcut = 2360 (info.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPLICATION || 2361 info.itemType == LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT); 2362 2363 return (aboveShortcut && willBecomeShortcut); 2364 } 2365 2366 boolean willAddToExistingUserFolder(Object dragInfo, CellLayout target, int[] targetCell, 2367 float distance) { 2368 if (distance > mMaxDistanceForFolderCreation) return false; 2369 View dropOverView = target.getChildAt(targetCell[0], targetCell[1]); 2370 2371 if (dropOverView != null) { 2372 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) dropOverView.getLayoutParams(); 2373 if (lp.useTmpCoords && (lp.tmpCellX != lp.cellX || lp.tmpCellY != lp.tmpCellY)) { 2374 return false; 2375 } 2376 } 2377 2378 if (dropOverView instanceof FolderIcon) { 2379 FolderIcon fi = (FolderIcon) dropOverView; 2380 if (fi.acceptDrop(dragInfo)) { 2381 return true; 2382 } 2383 } 2384 return false; 2385 } 2386 2387 boolean createUserFolderIfNecessary(View newView, long container, CellLayout target, 2388 int[] targetCell, float distance, boolean external, DragView dragView, 2389 Runnable postAnimationRunnable) { 2390 if (distance > mMaxDistanceForFolderCreation) return false; 2391 View v = target.getChildAt(targetCell[0], targetCell[1]); 2392 2393 boolean hasntMoved = false; 2394 if (mDragInfo != null) { 2395 CellLayout cellParent = getParentCellLayoutForView(mDragInfo.cell); 2396 hasntMoved = (mDragInfo.cellX == targetCell[0] && 2397 mDragInfo.cellY == targetCell[1]) && (cellParent == target); 2398 } 2399 2400 if (v == null || hasntMoved || !mCreateUserFolderOnDrop) return false; 2401 mCreateUserFolderOnDrop = false; 2402 final long screenId = (targetCell == null) ? mDragInfo.screenId : getIdForScreen(target); 2403 2404 boolean aboveShortcut = (v.getTag() instanceof ShortcutInfo); 2405 boolean willBecomeShortcut = (newView.getTag() instanceof ShortcutInfo); 2406 2407 if (aboveShortcut && willBecomeShortcut) { 2408 ShortcutInfo sourceInfo = (ShortcutInfo) newView.getTag(); 2409 ShortcutInfo destInfo = (ShortcutInfo) v.getTag(); 2410 // if the drag started here, we need to remove it from the workspace 2411 if (!external) { 2412 getParentCellLayoutForView(mDragInfo.cell).removeView(mDragInfo.cell); 2413 } 2414 2415 Rect folderLocation = new Rect(); 2416 float scale = mLauncher.getDragLayer().getDescendantRectRelativeToSelf(v, folderLocation); 2417 target.removeView(v); 2418 2419 FolderIcon fi = 2420 mLauncher.addFolder(target, container, screenId, targetCell[0], targetCell[1]); 2421 destInfo.cellX = -1; 2422 destInfo.cellY = -1; 2423 sourceInfo.cellX = -1; 2424 sourceInfo.cellY = -1; 2425 2426 // If the dragView is null, we can't animate 2427 boolean animate = dragView != null; 2428 if (animate) { 2429 fi.performCreateAnimation(destInfo, v, sourceInfo, dragView, folderLocation, scale, 2430 postAnimationRunnable); 2431 } else { 2432 fi.addItem(destInfo); 2433 fi.addItem(sourceInfo); 2434 } 2435 return true; 2436 } 2437 return false; 2438 } 2439 2440 boolean addToExistingFolderIfNecessary(View newView, CellLayout target, int[] targetCell, 2441 float distance, DragObject d, boolean external) { 2442 if (distance > mMaxDistanceForFolderCreation) return false; 2443 2444 View dropOverView = target.getChildAt(targetCell[0], targetCell[1]); 2445 if (!mAddToExistingFolderOnDrop) return false; 2446 mAddToExistingFolderOnDrop = false; 2447 2448 if (dropOverView instanceof FolderIcon) { 2449 FolderIcon fi = (FolderIcon) dropOverView; 2450 if (fi.acceptDrop(d.dragInfo)) { 2451 fi.onDrop(d); 2452 2453 // if the drag started here, we need to remove it from the workspace 2454 if (!external) { 2455 getParentCellLayoutForView(mDragInfo.cell).removeView(mDragInfo.cell); 2456 } 2457 return true; 2458 } 2459 } 2460 return false; 2461 } 2462 2463 public void onDrop(final DragObject d) { 2464 mDragViewVisualCenter = getDragViewVisualCenter(d.x, d.y, d.xOffset, d.yOffset, d.dragView, 2465 mDragViewVisualCenter); 2466 2467 CellLayout dropTargetLayout = mDropToLayout; 2468 2469 // We want the point to be mapped to the dragTarget. 2470 if (dropTargetLayout != null) { 2471 if (mLauncher.isHotseatLayout(dropTargetLayout)) { 2472 mapPointFromSelfToHotseatLayout(mLauncher.getHotseat(), mDragViewVisualCenter); 2473 } else { 2474 mapPointFromSelfToChild(dropTargetLayout, mDragViewVisualCenter, null); 2475 } 2476 } 2477 2478 int snapScreen = -1; 2479 boolean resizeOnDrop = false; 2480 if (d.dragSource != this) { 2481 final int[] touchXY = new int[] { (int) mDragViewVisualCenter[0], 2482 (int) mDragViewVisualCenter[1] }; 2483 onDropExternal(touchXY, d.dragInfo, dropTargetLayout, false, d); 2484 } else if (mDragInfo != null) { 2485 final View cell = mDragInfo.cell; 2486 2487 Runnable resizeRunnable = null; 2488 if (dropTargetLayout != null && !d.cancelled) { 2489 // Move internally 2490 boolean hasMovedLayouts = (getParentCellLayoutForView(cell) != dropTargetLayout); 2491 boolean hasMovedIntoHotseat = mLauncher.isHotseatLayout(dropTargetLayout); 2492 long container = hasMovedIntoHotseat ? 2493 LauncherSettings.Favorites.CONTAINER_HOTSEAT : 2494 LauncherSettings.Favorites.CONTAINER_DESKTOP; 2495 long screenId = (mTargetCell[0] < 0) ? 2496 mDragInfo.screenId : getIdForScreen(dropTargetLayout); 2497 int spanX = mDragInfo != null ? mDragInfo.spanX : 1; 2498 int spanY = mDragInfo != null ? mDragInfo.spanY : 1; 2499 // First we find the cell nearest to point at which the item is 2500 // dropped, without any consideration to whether there is an item there. 2501 2502 mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], (int) 2503 mDragViewVisualCenter[1], spanX, spanY, dropTargetLayout, mTargetCell); 2504 float distance = dropTargetLayout.getDistanceFromCell(mDragViewVisualCenter[0], 2505 mDragViewVisualCenter[1], mTargetCell); 2506 2507 // If the item being dropped is a shortcut and the nearest drop 2508 // cell also contains a shortcut, then create a folder with the two shortcuts. 2509 if (!mInScrollArea && createUserFolderIfNecessary(cell, container, 2510 dropTargetLayout, mTargetCell, distance, false, d.dragView, null)) { 2511 stripEmptyScreens(); 2512 return; 2513 } 2514 2515 if (addToExistingFolderIfNecessary(cell, dropTargetLayout, mTargetCell, 2516 distance, d, false)) { 2517 stripEmptyScreens(); 2518 return; 2519 } 2520 2521 // Aside from the special case where we're dropping a shortcut onto a shortcut, 2522 // we need to find the nearest cell location that is vacant 2523 ItemInfo item = (ItemInfo) d.dragInfo; 2524 int minSpanX = item.spanX; 2525 int minSpanY = item.spanY; 2526 if (item.minSpanX > 0 && item.minSpanY > 0) { 2527 minSpanX = item.minSpanX; 2528 minSpanY = item.minSpanY; 2529 } 2530 2531 int[] resultSpan = new int[2]; 2532 mTargetCell = dropTargetLayout.createArea((int) mDragViewVisualCenter[0], 2533 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, spanX, spanY, cell, 2534 mTargetCell, resultSpan, CellLayout.MODE_ON_DROP); 2535 2536 boolean foundCell = mTargetCell[0] >= 0 && mTargetCell[1] >= 0; 2537 2538 // if the widget resizes on drop 2539 if (foundCell && (cell instanceof AppWidgetHostView) && 2540 (resultSpan[0] != item.spanX || resultSpan[1] != item.spanY)) { 2541 resizeOnDrop = true; 2542 item.spanX = resultSpan[0]; 2543 item.spanY = resultSpan[1]; 2544 AppWidgetHostView awhv = (AppWidgetHostView) cell; 2545 AppWidgetResizeFrame.updateWidgetSizeRanges(awhv, mLauncher, resultSpan[0], 2546 resultSpan[1]); 2547 } 2548 2549 if (getScreenIdForPageIndex(mCurrentPage) != screenId && !hasMovedIntoHotseat) { 2550 snapScreen = getPageIndexForScreenId(screenId); 2551 snapToPage(snapScreen); 2552 } 2553 2554 if (foundCell) { 2555 final ItemInfo info = (ItemInfo) cell.getTag(); 2556 if (hasMovedLayouts) { 2557 // Reparent the view 2558 getParentCellLayoutForView(cell).removeView(cell); 2559 addInScreen(cell, container, screenId, mTargetCell[0], mTargetCell[1], 2560 info.spanX, info.spanY); 2561 } 2562 2563 // update the item's position after drop 2564 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) cell.getLayoutParams(); 2565 lp.cellX = lp.tmpCellX = mTargetCell[0]; 2566 lp.cellY = lp.tmpCellY = mTargetCell[1]; 2567 lp.cellHSpan = item.spanX; 2568 lp.cellVSpan = item.spanY; 2569 lp.isLockedToGrid = true; 2570 cell.setId(LauncherModel.getCellLayoutChildId(container, mDragInfo.screenId, 2571 mTargetCell[0], mTargetCell[1], mDragInfo.spanX, mDragInfo.spanY)); 2572 2573 if (container != LauncherSettings.Favorites.CONTAINER_HOTSEAT && 2574 cell instanceof LauncherAppWidgetHostView) { 2575 final CellLayout cellLayout = dropTargetLayout; 2576 // We post this call so that the widget has a chance to be placed 2577 // in its final location 2578 2579 final LauncherAppWidgetHostView hostView = (LauncherAppWidgetHostView) cell; 2580 AppWidgetProviderInfo pinfo = hostView.getAppWidgetInfo(); 2581 if (pinfo != null && 2582 pinfo.resizeMode != AppWidgetProviderInfo.RESIZE_NONE) { 2583 final Runnable addResizeFrame = new Runnable() { 2584 public void run() { 2585 DragLayer dragLayer = mLauncher.getDragLayer(); 2586 dragLayer.addResizeFrame(info, hostView, cellLayout); 2587 } 2588 }; 2589 resizeRunnable = (new Runnable() { 2590 public void run() { 2591 if (!isPageMoving()) { 2592 addResizeFrame.run(); 2593 } else { 2594 mDelayedResizeRunnable = addResizeFrame; 2595 } 2596 } 2597 }); 2598 } 2599 } 2600 2601 LauncherModel.moveItemInDatabase(mLauncher, info, container, screenId, lp.cellX, 2602 lp.cellY); 2603 } else { 2604 // If we can't find a drop location, we return the item to its original position 2605 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) cell.getLayoutParams(); 2606 mTargetCell[0] = lp.cellX; 2607 mTargetCell[1] = lp.cellY; 2608 CellLayout layout = (CellLayout) cell.getParent().getParent(); 2609 layout.markCellsAsOccupiedForView(cell); 2610 } 2611 } 2612 2613 final CellLayout parent = (CellLayout) cell.getParent().getParent(); 2614 final Runnable finalResizeRunnable = resizeRunnable; 2615 // Prepare it to be animated into its new position 2616 // This must be called after the view has been re-parented 2617 final Runnable onCompleteRunnable = new Runnable() { 2618 @Override 2619 public void run() { 2620 mAnimatingViewIntoPlace = false; 2621 updateChildrenLayersEnabled(false); 2622 if (finalResizeRunnable != null) { 2623 finalResizeRunnable.run(); 2624 } 2625 stripEmptyScreens(); 2626 } 2627 }; 2628 mAnimatingViewIntoPlace = true; 2629 if (d.dragView.hasDrawn()) { 2630 final ItemInfo info = (ItemInfo) cell.getTag(); 2631 if (info.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET) { 2632 int animationType = resizeOnDrop ? ANIMATE_INTO_POSITION_AND_RESIZE : 2633 ANIMATE_INTO_POSITION_AND_DISAPPEAR; 2634 animateWidgetDrop(info, parent, d.dragView, 2635 onCompleteRunnable, animationType, cell, false); 2636 } else { 2637 int duration = snapScreen < 0 ? -1 : ADJACENT_SCREEN_DROP_DURATION; 2638 mLauncher.getDragLayer().animateViewIntoPosition(d.dragView, cell, duration, 2639 onCompleteRunnable, this); 2640 } 2641 } else { 2642 d.deferDragViewCleanupPostAnimation = false; 2643 cell.setVisibility(VISIBLE); 2644 } 2645 parent.onDropChild(cell); 2646 } 2647 } 2648 2649 public void setFinalScrollForPageChange(int pageIndex) { 2650 CellLayout cl = (CellLayout) getChildAt(pageIndex); 2651 if (cl != null) { 2652 mSavedScrollX = getScrollX(); 2653 mSavedTranslationX = cl.getTranslationX(); 2654 mSavedRotationY = cl.getRotationY(); 2655 final int newX = getScrollForPage(pageIndex); 2656 setScrollX(newX); 2657 cl.setTranslationX(0f); 2658 cl.setRotationY(0f); 2659 } 2660 } 2661 2662 public void resetFinalScrollForPageChange(int pageIndex) { 2663 if (pageIndex >= 0) { 2664 CellLayout cl = (CellLayout) getChildAt(pageIndex); 2665 setScrollX(mSavedScrollX); 2666 cl.setTranslationX(mSavedTranslationX); 2667 cl.setRotationY(mSavedRotationY); 2668 } 2669 } 2670 2671 public void getViewLocationRelativeToSelf(View v, int[] location) { 2672 getLocationInWindow(location); 2673 int x = location[0]; 2674 int y = location[1]; 2675 2676 v.getLocationInWindow(location); 2677 int vX = location[0]; 2678 int vY = location[1]; 2679 2680 location[0] = vX - x; 2681 location[1] = vY - y; 2682 } 2683 2684 public void onDragEnter(DragObject d) { 2685 mDragEnforcer.onDragEnter(); 2686 mCreateUserFolderOnDrop = false; 2687 mAddToExistingFolderOnDrop = false; 2688 2689 mDropToLayout = null; 2690 CellLayout layout = getCurrentDropLayout(); 2691 setCurrentDropLayout(layout); 2692 setCurrentDragOverlappingLayout(layout); 2693 2694 // Because we don't have space in the Phone UI (the CellLayouts run to the edge) we 2695 // don't need to show the outlines 2696 if (LauncherAppState.getInstance().isScreenLarge()) { 2697 showOutlines(); 2698 } 2699 } 2700 2701 static Rect getCellLayoutMetrics(Launcher launcher, int orientation) { 2702 LauncherAppState app = LauncherAppState.getInstance(); 2703 DeviceProfile grid = app.getDynamicGrid().getDeviceProfile(); 2704 2705 Resources res = launcher.getResources(); 2706 Display display = launcher.getWindowManager().getDefaultDisplay(); 2707 Point smallestSize = new Point(); 2708 Point largestSize = new Point(); 2709 display.getCurrentSizeRange(smallestSize, largestSize); 2710 int countX = (int) grid.numColumns; 2711 int countY = (int) grid.numRows; 2712 if (orientation == CellLayout.LANDSCAPE) { 2713 if (mLandscapeCellLayoutMetrics == null) { 2714 Rect padding = grid.getWorkspacePadding(CellLayout.LANDSCAPE); 2715 int width = largestSize.x - padding.left - padding.right; 2716 int height = smallestSize.y - padding.top - padding.bottom; 2717 mLandscapeCellLayoutMetrics = new Rect(); 2718 CellLayout.getMetrics(mLandscapeCellLayoutMetrics, width, height, 2719 countX, countY); 2720 } 2721 return mLandscapeCellLayoutMetrics; 2722 } else if (orientation == CellLayout.PORTRAIT) { 2723 if (mPortraitCellLayoutMetrics == null) { 2724 Rect padding = grid.getWorkspacePadding(CellLayout.PORTRAIT); 2725 int width = smallestSize.x - padding.left - padding.right; 2726 int height = largestSize.y - padding.top - padding.bottom; 2727 mPortraitCellLayoutMetrics = new Rect(); 2728 CellLayout.getMetrics(mPortraitCellLayoutMetrics, width, height, 2729 countX, countY); 2730 } 2731 return mPortraitCellLayoutMetrics; 2732 } 2733 return null; 2734 } 2735 2736 public void onDragExit(DragObject d) { 2737 mDragEnforcer.onDragExit(); 2738 2739 // Here we store the final page that will be dropped to, if the workspace in fact 2740 // receives the drop 2741 if (mInScrollArea) { 2742 if (isPageMoving()) { 2743 // If the user drops while the page is scrolling, we should use that page as the 2744 // destination instead of the page that is being hovered over. 2745 mDropToLayout = (CellLayout) getPageAt(getNextPage()); 2746 } else { 2747 mDropToLayout = mDragOverlappingLayout; 2748 } 2749 } else { 2750 mDropToLayout = mDragTargetLayout; 2751 } 2752 2753 if (mDragMode == DRAG_MODE_CREATE_FOLDER) { 2754 mCreateUserFolderOnDrop = true; 2755 } else if (mDragMode == DRAG_MODE_ADD_TO_FOLDER) { 2756 mAddToExistingFolderOnDrop = true; 2757 } 2758 2759 // Reset the scroll area and previous drag target 2760 onResetScrollArea(); 2761 setCurrentDropLayout(null); 2762 setCurrentDragOverlappingLayout(null); 2763 2764 mSpringLoadedDragController.cancel(); 2765 2766 if (!mIsPageMoving) { 2767 hideOutlines(); 2768 } 2769 } 2770 2771 void setCurrentDropLayout(CellLayout layout) { 2772 if (mDragTargetLayout != null) { 2773 mDragTargetLayout.revertTempState(); 2774 mDragTargetLayout.onDragExit(); 2775 } 2776 mDragTargetLayout = layout; 2777 if (mDragTargetLayout != null) { 2778 mDragTargetLayout.onDragEnter(); 2779 } 2780 cleanupReorder(true); 2781 cleanupFolderCreation(); 2782 setCurrentDropOverCell(-1, -1); 2783 } 2784 2785 void setCurrentDragOverlappingLayout(CellLayout layout) { 2786 if (mDragOverlappingLayout != null) { 2787 mDragOverlappingLayout.setIsDragOverlapping(false); 2788 } 2789 mDragOverlappingLayout = layout; 2790 if (mDragOverlappingLayout != null) { 2791 mDragOverlappingLayout.setIsDragOverlapping(true); 2792 } 2793 invalidate(); 2794 } 2795 2796 void setCurrentDropOverCell(int x, int y) { 2797 if (x != mDragOverX || y != mDragOverY) { 2798 mDragOverX = x; 2799 mDragOverY = y; 2800 setDragMode(DRAG_MODE_NONE); 2801 } 2802 } 2803 2804 void setDragMode(int dragMode) { 2805 if (dragMode != mDragMode) { 2806 if (dragMode == DRAG_MODE_NONE) { 2807 cleanupAddToFolder(); 2808 // We don't want to cancel the re-order alarm every time the target cell changes 2809 // as this feels to slow / unresponsive. 2810 cleanupReorder(false); 2811 cleanupFolderCreation(); 2812 } else if (dragMode == DRAG_MODE_ADD_TO_FOLDER) { 2813 cleanupReorder(true); 2814 cleanupFolderCreation(); 2815 } else if (dragMode == DRAG_MODE_CREATE_FOLDER) { 2816 cleanupAddToFolder(); 2817 cleanupReorder(true); 2818 } else if (dragMode == DRAG_MODE_REORDER) { 2819 cleanupAddToFolder(); 2820 cleanupFolderCreation(); 2821 } 2822 mDragMode = dragMode; 2823 } 2824 } 2825 2826 private void cleanupFolderCreation() { 2827 if (mDragFolderRingAnimator != null) { 2828 mDragFolderRingAnimator.animateToNaturalState(); 2829 } 2830 mFolderCreationAlarm.cancelAlarm(); 2831 } 2832 2833 private void cleanupAddToFolder() { 2834 if (mDragOverFolderIcon != null) { 2835 mDragOverFolderIcon.onDragExit(null); 2836 mDragOverFolderIcon = null; 2837 } 2838 } 2839 2840 private void cleanupReorder(boolean cancelAlarm) { 2841 // Any pending reorders are canceled 2842 if (cancelAlarm) { 2843 mReorderAlarm.cancelAlarm(); 2844 } 2845 mLastReorderX = -1; 2846 mLastReorderY = -1; 2847 } 2848 2849 /* 2850 * 2851 * Convert the 2D coordinate xy from the parent View's coordinate space to this CellLayout's 2852 * coordinate space. The argument xy is modified with the return result. 2853 * 2854 * if cachedInverseMatrix is not null, this method will just use that matrix instead of 2855 * computing it itself; we use this to avoid redundant matrix inversions in 2856 * findMatchingPageForDragOver 2857 * 2858 */ 2859 void mapPointFromSelfToChild(View v, float[] xy, Matrix cachedInverseMatrix) { 2860 xy[0] = xy[0] - v.getLeft(); 2861 xy[1] = xy[1] - v.getTop(); 2862 } 2863 2864 boolean isPointInSelfOverHotseat(int x, int y, Rect r) { 2865 if (r == null) { 2866 r = new Rect(); 2867 } 2868 mTempPt[0] = x; 2869 mTempPt[1] = y; 2870 mLauncher.getDragLayer().getDescendantCoordRelativeToSelf(this, mTempPt, true); 2871 mLauncher.getHotseat().getHitRect(r); 2872 if (r.contains(mTempPt[0], mTempPt[1])) { 2873 return true; 2874 } 2875 return false; 2876 } 2877 2878 void mapPointFromSelfToHotseatLayout(Hotseat hotseat, float[] xy) { 2879 mTempPt[0] = (int) xy[0]; 2880 mTempPt[1] = (int) xy[1]; 2881 mLauncher.getDragLayer().getDescendantCoordRelativeToSelf(this, mTempPt, true); 2882 mLauncher.getDragLayer().mapCoordInSelfToDescendent(hotseat.getLayout(), mTempPt); 2883 2884 xy[0] = mTempPt[0]; 2885 xy[1] = mTempPt[1]; 2886 } 2887 2888 /* 2889 * 2890 * Convert the 2D coordinate xy from this CellLayout's coordinate space to 2891 * the parent View's coordinate space. The argument xy is modified with the return result. 2892 * 2893 */ 2894 void mapPointFromChildToSelf(View v, float[] xy) { 2895 xy[0] += v.getLeft(); 2896 xy[1] += v.getTop(); 2897 } 2898 2899 static private float squaredDistance(float[] point1, float[] point2) { 2900 float distanceX = point1[0] - point2[0]; 2901 float distanceY = point2[1] - point2[1]; 2902 return distanceX * distanceX + distanceY * distanceY; 2903 } 2904 2905 /* 2906 * 2907 * This method returns the CellLayout that is currently being dragged to. In order to drag 2908 * to a CellLayout, either the touch point must be directly over the CellLayout, or as a second 2909 * strategy, we see if the dragView is overlapping any CellLayout and choose the closest one 2910 * 2911 * Return null if no CellLayout is currently being dragged over 2912 * 2913 */ 2914 private CellLayout findMatchingPageForDragOver( 2915 DragView dragView, float originX, float originY, boolean exact) { 2916 // We loop through all the screens (ie CellLayouts) and see which ones overlap 2917 // with the item being dragged and then choose the one that's closest to the touch point 2918 final int screenCount = getChildCount(); 2919 CellLayout bestMatchingScreen = null; 2920 float smallestDistSoFar = Float.MAX_VALUE; 2921 2922 for (int i = 0; i < screenCount; i++) { 2923 CellLayout cl = (CellLayout) getChildAt(i); 2924 2925 final float[] touchXy = {originX, originY}; 2926 // Transform the touch coordinates to the CellLayout's local coordinates 2927 // If the touch point is within the bounds of the cell layout, we can return immediately 2928 cl.getMatrix().invert(mTempInverseMatrix); 2929 mapPointFromSelfToChild(cl, touchXy, mTempInverseMatrix); 2930 2931 if (touchXy[0] >= 0 && touchXy[0] <= cl.getWidth() && 2932 touchXy[1] >= 0 && touchXy[1] <= cl.getHeight()) { 2933 return cl; 2934 } 2935 2936 if (!exact) { 2937 // Get the center of the cell layout in screen coordinates 2938 final float[] cellLayoutCenter = mTempCellLayoutCenterCoordinates; 2939 cellLayoutCenter[0] = cl.getWidth()/2; 2940 cellLayoutCenter[1] = cl.getHeight()/2; 2941 mapPointFromChildToSelf(cl, cellLayoutCenter); 2942 2943 touchXy[0] = originX; 2944 touchXy[1] = originY; 2945 2946 // Calculate the distance between the center of the CellLayout 2947 // and the touch point 2948 float dist = squaredDistance(touchXy, cellLayoutCenter); 2949 2950 if (dist < smallestDistSoFar) { 2951 smallestDistSoFar = dist; 2952 bestMatchingScreen = cl; 2953 } 2954 } 2955 } 2956 return bestMatchingScreen; 2957 } 2958 2959 // This is used to compute the visual center of the dragView. This point is then 2960 // used to visualize drop locations and determine where to drop an item. The idea is that 2961 // the visual center represents the user's interpretation of where the item is, and hence 2962 // is the appropriate point to use when determining drop location. 2963 private float[] getDragViewVisualCenter(int x, int y, int xOffset, int yOffset, 2964 DragView dragView, float[] recycle) { 2965 float res[]; 2966 if (recycle == null) { 2967 res = new float[2]; 2968 } else { 2969 res = recycle; 2970 } 2971 2972 // First off, the drag view has been shifted in a way that is not represented in the 2973 // x and y values or the x/yOffsets. Here we account for that shift. 2974 x += getResources().getDimensionPixelSize(R.dimen.dragViewOffsetX); 2975 y += getResources().getDimensionPixelSize(R.dimen.dragViewOffsetY); 2976 2977 // These represent the visual top and left of drag view if a dragRect was provided. 2978 // If a dragRect was not provided, then they correspond to the actual view left and 2979 // top, as the dragRect is in that case taken to be the entire dragView. 2980 // R.dimen.dragViewOffsetY. 2981 int left = x - xOffset; 2982 int top = y - yOffset; 2983 2984 // In order to find the visual center, we shift by half the dragRect 2985 res[0] = left + dragView.getDragRegion().width() / 2; 2986 res[1] = top + dragView.getDragRegion().height() / 2; 2987 2988 return res; 2989 } 2990 2991 private boolean isDragWidget(DragObject d) { 2992 return (d.dragInfo instanceof LauncherAppWidgetInfo || 2993 d.dragInfo instanceof PendingAddWidgetInfo); 2994 } 2995 private boolean isExternalDragWidget(DragObject d) { 2996 return d.dragSource != this && isDragWidget(d); 2997 } 2998 2999 public void onDragOver(DragObject d) { 3000 // Skip drag over events while we are dragging over side pages 3001 if (mInScrollArea || mIsSwitchingState || mState == State.SMALL) return; 3002 3003 Rect r = new Rect(); 3004 CellLayout layout = null; 3005 ItemInfo item = (ItemInfo) d.dragInfo; 3006 3007 // Ensure that we have proper spans for the item that we are dropping 3008 if (item.spanX < 0 || item.spanY < 0) throw new RuntimeException("Improper spans found"); 3009 mDragViewVisualCenter = getDragViewVisualCenter(d.x, d.y, d.xOffset, d.yOffset, 3010 d.dragView, mDragViewVisualCenter); 3011 3012 final View child = (mDragInfo == null) ? null : mDragInfo.cell; 3013 // Identify whether we have dragged over a side page 3014 if (isSmall()) { 3015 if (mLauncher.getHotseat() != null && !isExternalDragWidget(d)) { 3016 if (isPointInSelfOverHotseat(d.x, d.y, r)) { 3017 layout = mLauncher.getHotseat().getLayout(); 3018 } 3019 } 3020 if (layout == null) { 3021 layout = findMatchingPageForDragOver(d.dragView, d.x, d.y, false); 3022 } 3023 if (layout != mDragTargetLayout) { 3024 setCurrentDropLayout(layout); 3025 setCurrentDragOverlappingLayout(layout); 3026 3027 boolean isInSpringLoadedMode = (mState == State.SPRING_LOADED); 3028 if (isInSpringLoadedMode) { 3029 if (mLauncher.isHotseatLayout(layout)) { 3030 mSpringLoadedDragController.cancel(); 3031 } else { 3032 mSpringLoadedDragController.setAlarm(mDragTargetLayout); 3033 } 3034 } 3035 } 3036 } else { 3037 // Test to see if we are over the hotseat otherwise just use the current page 3038 if (mLauncher.getHotseat() != null && !isDragWidget(d)) { 3039 if (isPointInSelfOverHotseat(d.x, d.y, r)) { 3040 layout = mLauncher.getHotseat().getLayout(); 3041 } 3042 } 3043 if (layout == null) { 3044 layout = getCurrentDropLayout(); 3045 } 3046 if (layout != mDragTargetLayout) { 3047 setCurrentDropLayout(layout); 3048 setCurrentDragOverlappingLayout(layout); 3049 } 3050 } 3051 3052 // Handle the drag over 3053 if (mDragTargetLayout != null) { 3054 // We want the point to be mapped to the dragTarget. 3055 if (mLauncher.isHotseatLayout(mDragTargetLayout)) { 3056 mapPointFromSelfToHotseatLayout(mLauncher.getHotseat(), mDragViewVisualCenter); 3057 } else { 3058 mapPointFromSelfToChild(mDragTargetLayout, mDragViewVisualCenter, null); 3059 } 3060 3061 ItemInfo info = (ItemInfo) d.dragInfo; 3062 3063 mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], 3064 (int) mDragViewVisualCenter[1], item.spanX, item.spanY, 3065 mDragTargetLayout, mTargetCell); 3066 3067 setCurrentDropOverCell(mTargetCell[0], mTargetCell[1]); 3068 3069 float targetCellDistance = mDragTargetLayout.getDistanceFromCell( 3070 mDragViewVisualCenter[0], mDragViewVisualCenter[1], mTargetCell); 3071 3072 final View dragOverView = mDragTargetLayout.getChildAt(mTargetCell[0], 3073 mTargetCell[1]); 3074 3075 manageFolderFeedback(info, mDragTargetLayout, mTargetCell, 3076 targetCellDistance, dragOverView); 3077 3078 int minSpanX = item.spanX; 3079 int minSpanY = item.spanY; 3080 if (item.minSpanX > 0 && item.minSpanY > 0) { 3081 minSpanX = item.minSpanX; 3082 minSpanY = item.minSpanY; 3083 } 3084 3085 boolean nearestDropOccupied = mDragTargetLayout.isNearestDropLocationOccupied((int) 3086 mDragViewVisualCenter[0], (int) mDragViewVisualCenter[1], item.spanX, 3087 item.spanY, child, mTargetCell); 3088 3089 if (!nearestDropOccupied) { 3090 mDragTargetLayout.visualizeDropLocation(child, mDragOutline, 3091 (int) mDragViewVisualCenter[0], (int) mDragViewVisualCenter[1], 3092 mTargetCell[0], mTargetCell[1], item.spanX, item.spanY, false, 3093 d.dragView.getDragVisualizeOffset(), d.dragView.getDragRegion()); 3094 } else if ((mDragMode == DRAG_MODE_NONE || mDragMode == DRAG_MODE_REORDER) 3095 && !mReorderAlarm.alarmPending() && (mLastReorderX != mTargetCell[0] || 3096 mLastReorderY != mTargetCell[1])) { 3097 3098 // Otherwise, if we aren't adding to or creating a folder and there's no pending 3099 // reorder, then we schedule a reorder 3100 ReorderAlarmListener listener = new ReorderAlarmListener(mDragViewVisualCenter, 3101 minSpanX, minSpanY, item.spanX, item.spanY, d.dragView, child); 3102 mReorderAlarm.setOnAlarmListener(listener); 3103 mReorderAlarm.setAlarm(REORDER_TIMEOUT); 3104 } 3105 3106 if (mDragMode == DRAG_MODE_CREATE_FOLDER || mDragMode == DRAG_MODE_ADD_TO_FOLDER || 3107 !nearestDropOccupied) { 3108 if (mDragTargetLayout != null) { 3109 mDragTargetLayout.revertTempState(); 3110 } 3111 } 3112 } 3113 } 3114 3115 private void manageFolderFeedback(ItemInfo info, CellLayout targetLayout, 3116 int[] targetCell, float distance, View dragOverView) { 3117 boolean userFolderPending = willCreateUserFolder(info, targetLayout, targetCell, distance, 3118 false); 3119 3120 if (mDragMode == DRAG_MODE_NONE && userFolderPending && 3121 !mFolderCreationAlarm.alarmPending()) { 3122 mFolderCreationAlarm.setOnAlarmListener(new 3123 FolderCreationAlarmListener(targetLayout, targetCell[0], targetCell[1])); 3124 mFolderCreationAlarm.setAlarm(FOLDER_CREATION_TIMEOUT); 3125 return; 3126 } 3127 3128 boolean willAddToFolder = 3129 willAddToExistingUserFolder(info, targetLayout, targetCell, distance); 3130 3131 if (willAddToFolder && mDragMode == DRAG_MODE_NONE) { 3132 mDragOverFolderIcon = ((FolderIcon) dragOverView); 3133 mDragOverFolderIcon.onDragEnter(info); 3134 if (targetLayout != null) { 3135 targetLayout.clearDragOutlines(); 3136 } 3137 setDragMode(DRAG_MODE_ADD_TO_FOLDER); 3138 return; 3139 } 3140 3141 if (mDragMode == DRAG_MODE_ADD_TO_FOLDER && !willAddToFolder) { 3142 setDragMode(DRAG_MODE_NONE); 3143 } 3144 if (mDragMode == DRAG_MODE_CREATE_FOLDER && !userFolderPending) { 3145 setDragMode(DRAG_MODE_NONE); 3146 } 3147 3148 return; 3149 } 3150 3151 class FolderCreationAlarmListener implements OnAlarmListener { 3152 CellLayout layout; 3153 int cellX; 3154 int cellY; 3155 3156 public FolderCreationAlarmListener(CellLayout layout, int cellX, int cellY) { 3157 this.layout = layout; 3158 this.cellX = cellX; 3159 this.cellY = cellY; 3160 } 3161 3162 public void onAlarm(Alarm alarm) { 3163 if (mDragFolderRingAnimator == null) { 3164 mDragFolderRingAnimator = new FolderRingAnimator(mLauncher, null); 3165 } 3166 mDragFolderRingAnimator.setCell(cellX, cellY); 3167 mDragFolderRingAnimator.setCellLayout(layout); 3168 mDragFolderRingAnimator.animateToAcceptState(); 3169 layout.showFolderAccept(mDragFolderRingAnimator); 3170 layout.clearDragOutlines(); 3171 setDragMode(DRAG_MODE_CREATE_FOLDER); 3172 } 3173 } 3174 3175 class ReorderAlarmListener implements OnAlarmListener { 3176 float[] dragViewCenter; 3177 int minSpanX, minSpanY, spanX, spanY; 3178 DragView dragView; 3179 View child; 3180 3181 public ReorderAlarmListener(float[] dragViewCenter, int minSpanX, int minSpanY, int spanX, 3182 int spanY, DragView dragView, View child) { 3183 this.dragViewCenter = dragViewCenter; 3184 this.minSpanX = minSpanX; 3185 this.minSpanY = minSpanY; 3186 this.spanX = spanX; 3187 this.spanY = spanY; 3188 this.child = child; 3189 this.dragView = dragView; 3190 } 3191 3192 public void onAlarm(Alarm alarm) { 3193 int[] resultSpan = new int[2]; 3194 mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], 3195 (int) mDragViewVisualCenter[1], spanX, spanY, mDragTargetLayout, mTargetCell); 3196 mLastReorderX = mTargetCell[0]; 3197 mLastReorderY = mTargetCell[1]; 3198 3199 mTargetCell = mDragTargetLayout.createArea((int) mDragViewVisualCenter[0], 3200 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, spanX, spanY, 3201 child, mTargetCell, resultSpan, CellLayout.MODE_DRAG_OVER); 3202 3203 if (mTargetCell[0] < 0 || mTargetCell[1] < 0) { 3204 mDragTargetLayout.revertTempState(); 3205 } else { 3206 setDragMode(DRAG_MODE_REORDER); 3207 } 3208 3209 boolean resize = resultSpan[0] != spanX || resultSpan[1] != spanY; 3210 mDragTargetLayout.visualizeDropLocation(child, mDragOutline, 3211 (int) mDragViewVisualCenter[0], (int) mDragViewVisualCenter[1], 3212 mTargetCell[0], mTargetCell[1], resultSpan[0], resultSpan[1], resize, 3213 dragView.getDragVisualizeOffset(), dragView.getDragRegion()); 3214 } 3215 } 3216 3217 @Override 3218 public void getHitRectRelativeToDragLayer(Rect outRect) { 3219 // We want the workspace to have the whole area of the display (it will find the correct 3220 // cell layout to drop to in the existing drag/drop logic. 3221 mLauncher.getDragLayer().getDescendantRectRelativeToSelf(this, outRect); 3222 } 3223 3224 /** 3225 * Add the item specified by dragInfo to the given layout. 3226 * @return true if successful 3227 */ 3228 public boolean addExternalItemToScreen(ItemInfo dragInfo, CellLayout layout) { 3229 if (layout.findCellForSpan(mTempEstimate, dragInfo.spanX, dragInfo.spanY)) { 3230 onDropExternal(dragInfo.dropPos, (ItemInfo) dragInfo, (CellLayout) layout, false); 3231 return true; 3232 } 3233 mLauncher.showOutOfSpaceMessage(mLauncher.isHotseatLayout(layout)); 3234 return false; 3235 } 3236 3237 private void onDropExternal(int[] touchXY, Object dragInfo, 3238 CellLayout cellLayout, boolean insertAtFirst) { 3239 onDropExternal(touchXY, dragInfo, cellLayout, insertAtFirst, null); 3240 } 3241 3242 /** 3243 * Drop an item that didn't originate on one of the workspace screens. 3244 * It may have come from Launcher (e.g. from all apps or customize), or it may have 3245 * come from another app altogether. 3246 * 3247 * NOTE: This can also be called when we are outside of a drag event, when we want 3248 * to add an item to one of the workspace screens. 3249 */ 3250 private void onDropExternal(final int[] touchXY, final Object dragInfo, 3251 final CellLayout cellLayout, boolean insertAtFirst, DragObject d) { 3252 final Runnable exitSpringLoadedRunnable = new Runnable() { 3253 @Override 3254 public void run() { 3255 mLauncher.exitSpringLoadedDragModeDelayed(true, false, null); 3256 } 3257 }; 3258 3259 ItemInfo info = (ItemInfo) dragInfo; 3260 int spanX = info.spanX; 3261 int spanY = info.spanY; 3262 if (mDragInfo != null) { 3263 spanX = mDragInfo.spanX; 3264 spanY = mDragInfo.spanY; 3265 } 3266 3267 final long container = mLauncher.isHotseatLayout(cellLayout) ? 3268 LauncherSettings.Favorites.CONTAINER_HOTSEAT : 3269 LauncherSettings.Favorites.CONTAINER_DESKTOP; 3270 final long screenId = getIdForScreen(cellLayout); 3271 if (!mLauncher.isHotseatLayout(cellLayout) 3272 && screenId != getScreenIdForPageIndex(mCurrentPage) 3273 && mState != State.SPRING_LOADED) { 3274 snapToScreenId(screenId, null); 3275 } 3276 3277 if (info instanceof PendingAddItemInfo) { 3278 final PendingAddItemInfo pendingInfo = (PendingAddItemInfo) dragInfo; 3279 3280 boolean findNearestVacantCell = true; 3281 if (pendingInfo.itemType == LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT) { 3282 mTargetCell = findNearestArea((int) touchXY[0], (int) touchXY[1], spanX, spanY, 3283 cellLayout, mTargetCell); 3284 float distance = cellLayout.getDistanceFromCell(mDragViewVisualCenter[0], 3285 mDragViewVisualCenter[1], mTargetCell); 3286 if (willCreateUserFolder((ItemInfo) d.dragInfo, cellLayout, mTargetCell, 3287 distance, true) || willAddToExistingUserFolder((ItemInfo) d.dragInfo, 3288 cellLayout, mTargetCell, distance)) { 3289 findNearestVacantCell = false; 3290 } 3291 } 3292 3293 final ItemInfo item = (ItemInfo) d.dragInfo; 3294 boolean updateWidgetSize = false; 3295 if (findNearestVacantCell) { 3296 int minSpanX = item.spanX; 3297 int minSpanY = item.spanY; 3298 if (item.minSpanX > 0 && item.minSpanY > 0) { 3299 minSpanX = item.minSpanX; 3300 minSpanY = item.minSpanY; 3301 } 3302 int[] resultSpan = new int[2]; 3303 mTargetCell = cellLayout.createArea((int) mDragViewVisualCenter[0], 3304 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, info.spanX, info.spanY, 3305 null, mTargetCell, resultSpan, CellLayout.MODE_ON_DROP_EXTERNAL); 3306 3307 if (resultSpan[0] != item.spanX || resultSpan[1] != item.spanY) { 3308 updateWidgetSize = true; 3309 } 3310 item.spanX = resultSpan[0]; 3311 item.spanY = resultSpan[1]; 3312 } 3313 3314 Runnable onAnimationCompleteRunnable = new Runnable() { 3315 @Override 3316 public void run() { 3317 // When dragging and dropping from customization tray, we deal with creating 3318 // widgets/shortcuts/folders in a slightly different way 3319 switch (pendingInfo.itemType) { 3320 case LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET: 3321 int span[] = new int[2]; 3322 span[0] = item.spanX; 3323 span[1] = item.spanY; 3324 mLauncher.addAppWidgetFromDrop((PendingAddWidgetInfo) pendingInfo, 3325 container, screenId, mTargetCell, span, null); 3326 break; 3327 case LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT: 3328 mLauncher.processShortcutFromDrop(pendingInfo.componentName, 3329 container, screenId, mTargetCell, null); 3330 break; 3331 default: 3332 throw new IllegalStateException("Unknown item type: " + 3333 pendingInfo.itemType); 3334 } 3335 } 3336 }; 3337 View finalView = pendingInfo.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET 3338 ? ((PendingAddWidgetInfo) pendingInfo).boundWidget : null; 3339 3340 if (finalView instanceof AppWidgetHostView && updateWidgetSize) { 3341 AppWidgetHostView awhv = (AppWidgetHostView) finalView; 3342 AppWidgetResizeFrame.updateWidgetSizeRanges(awhv, mLauncher, item.spanX, 3343 item.spanY); 3344 } 3345 3346 int animationStyle = ANIMATE_INTO_POSITION_AND_DISAPPEAR; 3347 if (pendingInfo.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET && 3348 ((PendingAddWidgetInfo) pendingInfo).info.configure != null) { 3349 animationStyle = ANIMATE_INTO_POSITION_AND_REMAIN; 3350 } 3351 animateWidgetDrop(info, cellLayout, d.dragView, onAnimationCompleteRunnable, 3352 animationStyle, finalView, true); 3353 } else { 3354 // This is for other drag/drop cases, like dragging from All Apps 3355 View view = null; 3356 3357 switch (info.itemType) { 3358 case LauncherSettings.Favorites.ITEM_TYPE_APPLICATION: 3359 case LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT: 3360 if (info.container == NO_ID && info instanceof AppInfo) { 3361 // Came from all apps -- make a copy 3362 info = new ShortcutInfo((AppInfo) info); 3363 } 3364 view = mLauncher.createShortcut(R.layout.application, cellLayout, 3365 (ShortcutInfo) info); 3366 break; 3367 case LauncherSettings.Favorites.ITEM_TYPE_FOLDER: 3368 view = FolderIcon.fromXml(R.layout.folder_icon, mLauncher, cellLayout, 3369 (FolderInfo) info, mIconCache); 3370 break; 3371 default: 3372 throw new IllegalStateException("Unknown item type: " + info.itemType); 3373 } 3374 3375 // First we find the cell nearest to point at which the item is 3376 // dropped, without any consideration to whether there is an item there. 3377 if (touchXY != null) { 3378 mTargetCell = findNearestArea((int) touchXY[0], (int) touchXY[1], spanX, spanY, 3379 cellLayout, mTargetCell); 3380 float distance = cellLayout.getDistanceFromCell(mDragViewVisualCenter[0], 3381 mDragViewVisualCenter[1], mTargetCell); 3382 d.postAnimationRunnable = exitSpringLoadedRunnable; 3383 if (createUserFolderIfNecessary(view, container, cellLayout, mTargetCell, distance, 3384 true, d.dragView, d.postAnimationRunnable)) { 3385 return; 3386 } 3387 if (addToExistingFolderIfNecessary(view, cellLayout, mTargetCell, distance, d, 3388 true)) { 3389 return; 3390 } 3391 } 3392 3393 if (touchXY != null) { 3394 // when dragging and dropping, just find the closest free spot 3395 mTargetCell = cellLayout.createArea((int) mDragViewVisualCenter[0], 3396 (int) mDragViewVisualCenter[1], 1, 1, 1, 1, 3397 null, mTargetCell, null, CellLayout.MODE_ON_DROP_EXTERNAL); 3398 } else { 3399 cellLayout.findCellForSpan(mTargetCell, 1, 1); 3400 } 3401 addInScreen(view, container, screenId, mTargetCell[0], mTargetCell[1], info.spanX, 3402 info.spanY, insertAtFirst); 3403 cellLayout.onDropChild(view); 3404 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) view.getLayoutParams(); 3405 cellLayout.getShortcutsAndWidgets().measureChild(view); 3406 3407 LauncherModel.addOrMoveItemInDatabase(mLauncher, info, container, screenId, 3408 lp.cellX, lp.cellY); 3409 3410 if (d.dragView != null) { 3411 // We wrap the animation call in the temporary set and reset of the current 3412 // cellLayout to its final transform -- this means we animate the drag view to 3413 // the correct final location. 3414 setFinalTransitionTransform(cellLayout); 3415 mLauncher.getDragLayer().animateViewIntoPosition(d.dragView, view, 3416 exitSpringLoadedRunnable); 3417 resetTransitionTransform(cellLayout); 3418 } 3419 } 3420 } 3421 3422 public Bitmap createWidgetBitmap(ItemInfo widgetInfo, View layout) { 3423 int[] unScaledSize = mLauncher.getWorkspace().estimateItemSize(widgetInfo.spanX, 3424 widgetInfo.spanY, widgetInfo, false); 3425 int visibility = layout.getVisibility(); 3426 layout.setVisibility(VISIBLE); 3427 3428 int width = MeasureSpec.makeMeasureSpec(unScaledSize[0], MeasureSpec.EXACTLY); 3429 int height = MeasureSpec.makeMeasureSpec(unScaledSize[1], MeasureSpec.EXACTLY); 3430 Bitmap b = Bitmap.createBitmap(unScaledSize[0], unScaledSize[1], 3431 Bitmap.Config.ARGB_8888); 3432 Canvas c = new Canvas(b); 3433 3434 layout.measure(width, height); 3435 layout.layout(0, 0, unScaledSize[0], unScaledSize[1]); 3436 layout.draw(c); 3437 c.setBitmap(null); 3438 layout.setVisibility(visibility); 3439 return b; 3440 } 3441 3442 private void getFinalPositionForDropAnimation(int[] loc, float[] scaleXY, 3443 DragView dragView, CellLayout layout, ItemInfo info, int[] targetCell, 3444 boolean external, boolean scale) { 3445 // Now we animate the dragView, (ie. the widget or shortcut preview) into its final 3446 // location and size on the home screen. 3447 int spanX = info.spanX; 3448 int spanY = info.spanY; 3449 3450 Rect r = estimateItemPosition(layout, info, targetCell[0], targetCell[1], spanX, spanY); 3451 loc[0] = r.left; 3452 loc[1] = r.top; 3453 3454 setFinalTransitionTransform(layout); 3455 float cellLayoutScale = 3456 mLauncher.getDragLayer().getDescendantCoordRelativeToSelf(layout, loc, true); 3457 resetTransitionTransform(layout); 3458 3459 float dragViewScaleX; 3460 float dragViewScaleY; 3461 if (scale) { 3462 dragViewScaleX = (1.0f * r.width()) / dragView.getMeasuredWidth(); 3463 dragViewScaleY = (1.0f * r.height()) / dragView.getMeasuredHeight(); 3464 } else { 3465 dragViewScaleX = 1f; 3466 dragViewScaleY = 1f; 3467 } 3468 3469 // The animation will scale the dragView about its center, so we need to center about 3470 // the final location. 3471 loc[0] -= (dragView.getMeasuredWidth() - cellLayoutScale * r.width()) / 2; 3472 loc[1] -= (dragView.getMeasuredHeight() - cellLayoutScale * r.height()) / 2; 3473 3474 scaleXY[0] = dragViewScaleX * cellLayoutScale; 3475 scaleXY[1] = dragViewScaleY * cellLayoutScale; 3476 } 3477 3478 public void animateWidgetDrop(ItemInfo info, CellLayout cellLayout, DragView dragView, 3479 final Runnable onCompleteRunnable, int animationType, final View finalView, 3480 boolean external) { 3481 Rect from = new Rect(); 3482 mLauncher.getDragLayer().getViewRectRelativeToSelf(dragView, from); 3483 3484 int[] finalPos = new int[2]; 3485 float scaleXY[] = new float[2]; 3486 boolean scalePreview = !(info instanceof PendingAddShortcutInfo); 3487 getFinalPositionForDropAnimation(finalPos, scaleXY, dragView, cellLayout, info, mTargetCell, 3488 external, scalePreview); 3489 3490 Resources res = mLauncher.getResources(); 3491 int duration = res.getInteger(R.integer.config_dropAnimMaxDuration) - 200; 3492 3493 // In the case where we've prebound the widget, we remove it from the DragLayer 3494 if (finalView instanceof AppWidgetHostView && external) { 3495 Log.d(TAG, "6557954 Animate widget drop, final view is appWidgetHostView"); 3496 mLauncher.getDragLayer().removeView(finalView); 3497 } 3498 if ((animationType == ANIMATE_INTO_POSITION_AND_RESIZE || external) && finalView != null) { 3499 Bitmap crossFadeBitmap = createWidgetBitmap(info, finalView); 3500 dragView.setCrossFadeBitmap(crossFadeBitmap); 3501 dragView.crossFade((int) (duration * 0.8f)); 3502 } else if (info.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET && external) { 3503 scaleXY[0] = scaleXY[1] = Math.min(scaleXY[0], scaleXY[1]); 3504 } 3505 3506 DragLayer dragLayer = mLauncher.getDragLayer(); 3507 if (animationType == CANCEL_TWO_STAGE_WIDGET_DROP_ANIMATION) { 3508 mLauncher.getDragLayer().animateViewIntoPosition(dragView, finalPos, 0f, 0.1f, 0.1f, 3509 DragLayer.ANIMATION_END_DISAPPEAR, onCompleteRunnable, duration); 3510 } else { 3511 int endStyle; 3512 if (animationType == ANIMATE_INTO_POSITION_AND_REMAIN) { 3513 endStyle = DragLayer.ANIMATION_END_REMAIN_VISIBLE; 3514 } else { 3515 endStyle = DragLayer.ANIMATION_END_DISAPPEAR;; 3516 } 3517 3518 Runnable onComplete = new Runnable() { 3519 @Override 3520 public void run() { 3521 if (finalView != null) { 3522 finalView.setVisibility(VISIBLE); 3523 } 3524 if (onCompleteRunnable != null) { 3525 onCompleteRunnable.run(); 3526 } 3527 } 3528 }; 3529 dragLayer.animateViewIntoPosition(dragView, from.left, from.top, finalPos[0], 3530 finalPos[1], 1, 1, 1, scaleXY[0], scaleXY[1], onComplete, endStyle, 3531 duration, this); 3532 } 3533 } 3534 3535 public void setFinalTransitionTransform(CellLayout layout) { 3536 if (isSwitchingState()) { 3537 mCurrentScale = getScaleX(); 3538 setScaleX(mNewScale); 3539 setScaleY(mNewScale); 3540 } 3541 } 3542 public void resetTransitionTransform(CellLayout layout) { 3543 if (isSwitchingState()) { 3544 setScaleX(mCurrentScale); 3545 setScaleY(mCurrentScale); 3546 } 3547 } 3548 3549 /** 3550 * Return the current {@link CellLayout}, correctly picking the destination 3551 * screen while a scroll is in progress. 3552 */ 3553 public CellLayout getCurrentDropLayout() { 3554 return (CellLayout) getChildAt(getNextPage()); 3555 } 3556 3557 /** 3558 * Return the current CellInfo describing our current drag; this method exists 3559 * so that Launcher can sync this object with the correct info when the activity is created/ 3560 * destroyed 3561 * 3562 */ 3563 public CellLayout.CellInfo getDragInfo() { 3564 return mDragInfo; 3565 } 3566 3567 /** 3568 * Calculate the nearest cell where the given object would be dropped. 3569 * 3570 * pixelX and pixelY should be in the coordinate system of layout 3571 */ 3572 private int[] findNearestArea(int pixelX, int pixelY, 3573 int spanX, int spanY, CellLayout layout, int[] recycle) { 3574 return layout.findNearestArea( 3575 pixelX, pixelY, spanX, spanY, recycle); 3576 } 3577 3578 void setup(DragController dragController) { 3579 mSpringLoadedDragController = new SpringLoadedDragController(mLauncher); 3580 mDragController = dragController; 3581 3582 // hardware layers on children are enabled on startup, but should be disabled until 3583 // needed 3584 updateChildrenLayersEnabled(false); 3585 setWallpaperDimension(); 3586 } 3587 3588 /** 3589 * Called at the end of a drag which originated on the workspace. 3590 */ 3591 public void onDropCompleted(final View target, final DragObject d, 3592 final boolean isFlingToDelete, final boolean success) { 3593 if (mDeferDropAfterUninstall) { 3594 mDeferredAction = new Runnable() { 3595 public void run() { 3596 onDropCompleted(target, d, isFlingToDelete, success); 3597 mDeferredAction = null; 3598 } 3599 }; 3600 return; 3601 } 3602 3603 boolean beingCalledAfterUninstall = mDeferredAction != null; 3604 3605 if (success && !(beingCalledAfterUninstall && !mUninstallSuccessful)) { 3606 if (target != this && mDragInfo != null) { 3607 CellLayout parentCell = getParentCellLayoutForView(mDragInfo.cell); 3608 if (parentCell != null) { 3609 parentCell.removeView(mDragInfo.cell); 3610 } 3611 if (mDragInfo.cell instanceof DropTarget) { 3612 mDragController.removeDropTarget((DropTarget) mDragInfo.cell); 3613 } 3614 // If we move the item to anything not on the Workspace, check if any empty 3615 // screens need to be removed. If we dropped back on the workspace, this will 3616 // be done post drop animation. 3617 stripEmptyScreens(); 3618 } 3619 } else if (mDragInfo != null) { 3620 CellLayout cellLayout; 3621 if (mLauncher.isHotseatLayout(target)) { 3622 cellLayout = mLauncher.getHotseat().getLayout(); 3623 } else { 3624 cellLayout = getScreenWithId(mDragInfo.screenId); 3625 } 3626 cellLayout.onDropChild(mDragInfo.cell); 3627 } 3628 if ((d.cancelled || (beingCalledAfterUninstall && !mUninstallSuccessful)) 3629 && mDragInfo.cell != null) { 3630 mDragInfo.cell.setVisibility(VISIBLE); 3631 } 3632 mDragOutline = null; 3633 mDragInfo = null; 3634 } 3635 3636 public void deferCompleteDropAfterUninstallActivity() { 3637 mDeferDropAfterUninstall = true; 3638 } 3639 3640 /// maybe move this into a smaller part 3641 public void onUninstallActivityReturned(boolean success) { 3642 mDeferDropAfterUninstall = false; 3643 mUninstallSuccessful = success; 3644 if (mDeferredAction != null) { 3645 mDeferredAction.run(); 3646 } 3647 } 3648 3649 void updateItemLocationsInDatabase(CellLayout cl) { 3650 int count = cl.getShortcutsAndWidgets().getChildCount(); 3651 3652 long screenId = getIdForScreen(cl); 3653 int container = Favorites.CONTAINER_DESKTOP; 3654 3655 if (mLauncher.isHotseatLayout(cl)) { 3656 screenId = -1; 3657 container = Favorites.CONTAINER_HOTSEAT; 3658 } 3659 3660 for (int i = 0; i < count; i++) { 3661 View v = cl.getShortcutsAndWidgets().getChildAt(i); 3662 ItemInfo info = (ItemInfo) v.getTag(); 3663 // Null check required as the AllApps button doesn't have an item info 3664 if (info != null && info.requiresDbUpdate) { 3665 info.requiresDbUpdate = false; 3666 LauncherModel.modifyItemInDatabase(mLauncher, info, container, screenId, info.cellX, 3667 info.cellY, info.spanX, info.spanY); 3668 } 3669 } 3670 } 3671 3672 ArrayList<ComponentName> getUniqueComponents(boolean stripDuplicates, ArrayList<ComponentName> duplicates) { 3673 ArrayList<ComponentName> uniqueIntents = new ArrayList<ComponentName>(); 3674 getUniqueIntents((CellLayout) mLauncher.getHotseat().getLayout(), uniqueIntents, duplicates, false); 3675 int count = getChildCount(); 3676 for (int i = 0; i < count; i++) { 3677 CellLayout cl = (CellLayout) getChildAt(i); 3678 getUniqueIntents(cl, uniqueIntents, duplicates, false); 3679 } 3680 return uniqueIntents; 3681 } 3682 3683 void getUniqueIntents(CellLayout cl, ArrayList<ComponentName> uniqueIntents, 3684 ArrayList<ComponentName> duplicates, boolean stripDuplicates) { 3685 int count = cl.getShortcutsAndWidgets().getChildCount(); 3686 3687 ArrayList<View> children = new ArrayList<View>(); 3688 for (int i = 0; i < count; i++) { 3689 View v = cl.getShortcutsAndWidgets().getChildAt(i); 3690 children.add(v); 3691 } 3692 3693 for (int i = 0; i < count; i++) { 3694 View v = children.get(i); 3695 ItemInfo info = (ItemInfo) v.getTag(); 3696 // Null check required as the AllApps button doesn't have an item info 3697 if (info instanceof ShortcutInfo) { 3698 ShortcutInfo si = (ShortcutInfo) info; 3699 ComponentName cn = si.intent.getComponent(); 3700 3701 Uri dataUri = si.intent.getData(); 3702 // If dataUri is not null / empty or if this component isn't one that would 3703 // have previously showed up in the AllApps list, then this is a widget-type 3704 // shortcut, so ignore it. 3705 if (dataUri != null && !dataUri.equals(Uri.EMPTY)) { 3706 continue; 3707 } 3708 3709 if (!uniqueIntents.contains(cn)) { 3710 uniqueIntents.add(cn); 3711 } else { 3712 if (stripDuplicates) { 3713 cl.removeViewInLayout(v); 3714 LauncherModel.deleteItemFromDatabase(mLauncher, si); 3715 } 3716 if (duplicates != null) { 3717 duplicates.add(cn); 3718 } 3719 } 3720 } 3721 if (v instanceof FolderIcon) { 3722 FolderIcon fi = (FolderIcon) v; 3723 ArrayList<View> items = fi.getFolder().getItemsInReadingOrder(); 3724 for (int j = 0; j < items.size(); j++) { 3725 if (items.get(j).getTag() instanceof ShortcutInfo) { 3726 ShortcutInfo si = (ShortcutInfo) items.get(j).getTag(); 3727 ComponentName cn = si.intent.getComponent(); 3728 3729 Uri dataUri = si.intent.getData(); 3730 // If dataUri is not null / empty or if this component isn't one that would 3731 // have previously showed up in the AllApps list, then this is a widget-type 3732 // shortcut, so ignore it. 3733 if (dataUri != null && !dataUri.equals(Uri.EMPTY)) { 3734 continue; 3735 } 3736 3737 if (!uniqueIntents.contains(cn)) { 3738 uniqueIntents.add(cn); 3739 } else { 3740 if (stripDuplicates) { 3741 fi.getFolderInfo().remove(si); 3742 LauncherModel.deleteItemFromDatabase(mLauncher, si); 3743 } 3744 if (duplicates != null) { 3745 duplicates.add(cn); 3746 } 3747 } 3748 } 3749 } 3750 } 3751 } 3752 } 3753 3754 void saveWorkspaceToDb() { 3755 saveWorkspaceScreenToDb((CellLayout) mLauncher.getHotseat().getLayout()); 3756 int count = getChildCount(); 3757 for (int i = 0; i < count; i++) { 3758 CellLayout cl = (CellLayout) getChildAt(i); 3759 saveWorkspaceScreenToDb(cl); 3760 } 3761 } 3762 3763 void saveWorkspaceScreenToDb(CellLayout cl) { 3764 int count = cl.getShortcutsAndWidgets().getChildCount(); 3765 3766 long screenId = getIdForScreen(cl); 3767 int container = Favorites.CONTAINER_DESKTOP; 3768 3769 Hotseat hotseat = mLauncher.getHotseat(); 3770 if (mLauncher.isHotseatLayout(cl)) { 3771 screenId = -1; 3772 container = Favorites.CONTAINER_HOTSEAT; 3773 } 3774 3775 for (int i = 0; i < count; i++) { 3776 View v = cl.getShortcutsAndWidgets().getChildAt(i); 3777 ItemInfo info = (ItemInfo) v.getTag(); 3778 // Null check required as the AllApps button doesn't have an item info 3779 if (info != null) { 3780 int cellX = info.cellX; 3781 int cellY = info.cellY; 3782 if (container == Favorites.CONTAINER_HOTSEAT) { 3783 cellX = hotseat.getCellXFromOrder((int) info.screenId); 3784 cellY = hotseat.getCellYFromOrder((int) info.screenId); 3785 } 3786 LauncherModel.addItemToDatabase(mLauncher, info, container, screenId, cellX, 3787 cellY, false); 3788 } 3789 if (v instanceof FolderIcon) { 3790 FolderIcon fi = (FolderIcon) v; 3791 fi.getFolder().addItemLocationsInDatabase(); 3792 } 3793 } 3794 } 3795 3796 @Override 3797 public boolean supportsFlingToDelete() { 3798 return true; 3799 } 3800 3801 @Override 3802 public void onFlingToDelete(DragObject d, int x, int y, PointF vec) { 3803 // Do nothing 3804 } 3805 3806 @Override 3807 public void onFlingToDeleteCompleted() { 3808 // Do nothing 3809 } 3810 3811 public boolean isDropEnabled() { 3812 return true; 3813 } 3814 3815 @Override 3816 protected void onRestoreInstanceState(Parcelable state) { 3817 super.onRestoreInstanceState(state); 3818 Launcher.setScreen(mCurrentPage); 3819 } 3820 3821 @Override 3822 protected void dispatchRestoreInstanceState(SparseArray<Parcelable> container) { 3823 // We don't dispatch restoreInstanceState to our children using this code path. 3824 // Some pages will be restored immediately as their items are bound immediately, and 3825 // others we will need to wait until after their items are bound. 3826 mSavedStates = container; 3827 } 3828 3829 public void restoreInstanceStateForChild(int child) { 3830 if (mSavedStates != null) { 3831 mRestoredPages.add(child); 3832 CellLayout cl = (CellLayout) getChildAt(child); 3833 cl.restoreInstanceState(mSavedStates); 3834 } 3835 } 3836 3837 public void restoreInstanceStateForRemainingPages() { 3838 int count = getChildCount(); 3839 for (int i = 0; i < count; i++) { 3840 if (!mRestoredPages.contains(i)) { 3841 restoreInstanceStateForChild(i); 3842 } 3843 } 3844 mRestoredPages.clear(); 3845 } 3846 3847 @Override 3848 public void scrollLeft() { 3849 if (!isSmall() && !mIsSwitchingState) { 3850 super.scrollLeft(); 3851 } 3852 Folder openFolder = getOpenFolder(); 3853 if (openFolder != null) { 3854 openFolder.completeDragExit(); 3855 } 3856 } 3857 3858 @Override 3859 public void scrollRight() { 3860 if (!isSmall() && !mIsSwitchingState) { 3861 super.scrollRight(); 3862 } 3863 Folder openFolder = getOpenFolder(); 3864 if (openFolder != null) { 3865 openFolder.completeDragExit(); 3866 } 3867 } 3868 3869 @Override 3870 public boolean onEnterScrollArea(int x, int y, int direction) { 3871 // Ignore the scroll area if we are dragging over the hot seat 3872 boolean isPortrait = !LauncherAppState.isScreenLandscape(getContext()); 3873 if (mLauncher.getHotseat() != null && isPortrait) { 3874 Rect r = new Rect(); 3875 mLauncher.getHotseat().getHitRect(r); 3876 if (r.contains(x, y)) { 3877 return false; 3878 } 3879 } 3880 3881 boolean result = false; 3882 if (!isSmall() && !mIsSwitchingState && getOpenFolder() == null) { 3883 mInScrollArea = true; 3884 3885 final int page = getNextPage() + 3886 (direction == DragController.SCROLL_LEFT ? -1 : 1); 3887 // We always want to exit the current layout to ensure parity of enter / exit 3888 setCurrentDropLayout(null); 3889 3890 if (0 <= page && page < getChildCount()) { 3891 // Ensure that we are not dragging over to the custom content screen 3892 if (getScreenIdForPageIndex(page) == CUSTOM_CONTENT_SCREEN_ID) { 3893 return false; 3894 } 3895 3896 CellLayout layout = (CellLayout) getChildAt(page); 3897 setCurrentDragOverlappingLayout(layout); 3898 3899 // Workspace is responsible for drawing the edge glow on adjacent pages, 3900 // so we need to redraw the workspace when this may have changed. 3901 invalidate(); 3902 result = true; 3903 } 3904 } 3905 return result; 3906 } 3907 3908 @Override 3909 public boolean onExitScrollArea() { 3910 boolean result = false; 3911 if (mInScrollArea) { 3912 invalidate(); 3913 CellLayout layout = getCurrentDropLayout(); 3914 setCurrentDropLayout(layout); 3915 setCurrentDragOverlappingLayout(layout); 3916 3917 result = true; 3918 mInScrollArea = false; 3919 } 3920 return result; 3921 } 3922 3923 private void onResetScrollArea() { 3924 setCurrentDragOverlappingLayout(null); 3925 mInScrollArea = false; 3926 } 3927 3928 /** 3929 * Returns a specific CellLayout 3930 */ 3931 CellLayout getParentCellLayoutForView(View v) { 3932 ArrayList<CellLayout> layouts = getWorkspaceAndHotseatCellLayouts(); 3933 for (CellLayout layout : layouts) { 3934 if (layout.getShortcutsAndWidgets().indexOfChild(v) > -1) { 3935 return layout; 3936 } 3937 } 3938 return null; 3939 } 3940 3941 /** 3942 * Returns a list of all the CellLayouts in the workspace. 3943 */ 3944 ArrayList<CellLayout> getWorkspaceAndHotseatCellLayouts() { 3945 ArrayList<CellLayout> layouts = new ArrayList<CellLayout>(); 3946 int screenCount = getChildCount(); 3947 for (int screen = 0; screen < screenCount; screen++) { 3948 layouts.add(((CellLayout) getChildAt(screen))); 3949 } 3950 if (mLauncher.getHotseat() != null) { 3951 layouts.add(mLauncher.getHotseat().getLayout()); 3952 } 3953 return layouts; 3954 } 3955 3956 /** 3957 * We should only use this to search for specific children. Do not use this method to modify 3958 * ShortcutsAndWidgetsContainer directly. Includes ShortcutAndWidgetContainers from 3959 * the hotseat and workspace pages 3960 */ 3961 ArrayList<ShortcutAndWidgetContainer> getAllShortcutAndWidgetContainers() { 3962 ArrayList<ShortcutAndWidgetContainer> childrenLayouts = 3963 new ArrayList<ShortcutAndWidgetContainer>(); 3964 int screenCount = getChildCount(); 3965 for (int screen = 0; screen < screenCount; screen++) { 3966 childrenLayouts.add(((CellLayout) getChildAt(screen)).getShortcutsAndWidgets()); 3967 } 3968 if (mLauncher.getHotseat() != null) { 3969 childrenLayouts.add(mLauncher.getHotseat().getLayout().getShortcutsAndWidgets()); 3970 } 3971 return childrenLayouts; 3972 } 3973 3974 public Folder getFolderForTag(Object tag) { 3975 ArrayList<ShortcutAndWidgetContainer> childrenLayouts = 3976 getAllShortcutAndWidgetContainers(); 3977 for (ShortcutAndWidgetContainer layout: childrenLayouts) { 3978 int count = layout.getChildCount(); 3979 for (int i = 0; i < count; i++) { 3980 View child = layout.getChildAt(i); 3981 if (child instanceof Folder) { 3982 Folder f = (Folder) child; 3983 if (f.getInfo() == tag && f.getInfo().opened) { 3984 return f; 3985 } 3986 } 3987 } 3988 } 3989 return null; 3990 } 3991 3992 public View getViewForTag(Object tag) { 3993 ArrayList<ShortcutAndWidgetContainer> childrenLayouts = 3994 getAllShortcutAndWidgetContainers(); 3995 for (ShortcutAndWidgetContainer layout: childrenLayouts) { 3996 int count = layout.getChildCount(); 3997 for (int i = 0; i < count; i++) { 3998 View child = layout.getChildAt(i); 3999 if (child.getTag() == tag) { 4000 return child; 4001 } 4002 } 4003 } 4004 return null; 4005 } 4006 4007 void clearDropTargets() { 4008 ArrayList<ShortcutAndWidgetContainer> childrenLayouts = 4009 getAllShortcutAndWidgetContainers(); 4010 for (ShortcutAndWidgetContainer layout: childrenLayouts) { 4011 int childCount = layout.getChildCount(); 4012 for (int j = 0; j < childCount; j++) { 4013 View v = layout.getChildAt(j); 4014 if (v instanceof DropTarget) { 4015 mDragController.removeDropTarget((DropTarget) v); 4016 } 4017 } 4018 } 4019 } 4020 4021 // Removes ALL items that match a given package name, this is usually called when a package 4022 // has been removed and we want to remove all components (widgets, shortcuts, apps) that 4023 // belong to that package. 4024 void removeItemsByPackageName(final ArrayList<String> packages) { 4025 final HashSet<String> packageNames = new HashSet<String>(); 4026 packageNames.addAll(packages); 4027 4028 // Filter out all the ItemInfos that this is going to affect 4029 final HashSet<ItemInfo> infos = new HashSet<ItemInfo>(); 4030 final HashSet<ComponentName> cns = new HashSet<ComponentName>(); 4031 ArrayList<CellLayout> cellLayouts = getWorkspaceAndHotseatCellLayouts(); 4032 for (CellLayout layoutParent : cellLayouts) { 4033 ViewGroup layout = layoutParent.getShortcutsAndWidgets(); 4034 int childCount = layout.getChildCount(); 4035 for (int i = 0; i < childCount; ++i) { 4036 View view = layout.getChildAt(i); 4037 infos.add((ItemInfo) view.getTag()); 4038 } 4039 } 4040 LauncherModel.ItemInfoFilter filter = new LauncherModel.ItemInfoFilter() { 4041 @Override 4042 public boolean filterItem(ItemInfo parent, ItemInfo info, 4043 ComponentName cn) { 4044 if (packageNames.contains(cn.getPackageName())) { 4045 cns.add(cn); 4046 return true; 4047 } 4048 return false; 4049 } 4050 }; 4051 LauncherModel.filterItemInfos(infos, filter); 4052 4053 // Remove the affected components 4054 removeItemsByComponentName(cns); 4055 } 4056 4057 // Removes items that match the application info specified, when applications are removed 4058 // as a part of an update, this is called to ensure that other widgets and application 4059 // shortcuts are not removed. 4060 void removeItemsByApplicationInfo(final ArrayList<AppInfo> appInfos) { 4061 // Just create a hash table of all the specific components that this will affect 4062 HashSet<ComponentName> cns = new HashSet<ComponentName>(); 4063 for (AppInfo info : appInfos) { 4064 cns.add(info.componentName); 4065 } 4066 4067 // Remove all the things 4068 removeItemsByComponentName(cns); 4069 } 4070 4071 void removeItemsByComponentName(final HashSet<ComponentName> componentNames) { 4072 ArrayList<CellLayout> cellLayouts = getWorkspaceAndHotseatCellLayouts(); 4073 for (final CellLayout layoutParent: cellLayouts) { 4074 final ViewGroup layout = layoutParent.getShortcutsAndWidgets(); 4075 4076 final HashMap<ItemInfo, View> children = new HashMap<ItemInfo, View>(); 4077 for (int j = 0; j < layout.getChildCount(); j++) { 4078 final View view = layout.getChildAt(j); 4079 children.put((ItemInfo) view.getTag(), view); 4080 } 4081 4082 final ArrayList<View> childrenToRemove = new ArrayList<View>(); 4083 final HashMap<FolderInfo, ArrayList<ShortcutInfo>> folderAppsToRemove = 4084 new HashMap<FolderInfo, ArrayList<ShortcutInfo>>(); 4085 LauncherModel.ItemInfoFilter filter = new LauncherModel.ItemInfoFilter() { 4086 @Override 4087 public boolean filterItem(ItemInfo parent, ItemInfo info, 4088 ComponentName cn) { 4089 if (parent instanceof FolderInfo) { 4090 if (componentNames.contains(cn)) { 4091 FolderInfo folder = (FolderInfo) parent; 4092 ArrayList<ShortcutInfo> appsToRemove; 4093 if (folderAppsToRemove.containsKey(folder)) { 4094 appsToRemove = folderAppsToRemove.get(folder); 4095 } else { 4096 appsToRemove = new ArrayList<ShortcutInfo>(); 4097 folderAppsToRemove.put(folder, appsToRemove); 4098 } 4099 appsToRemove.add((ShortcutInfo) info); 4100 return true; 4101 } 4102 } else { 4103 if (componentNames.contains(cn)) { 4104 childrenToRemove.add(children.get(info)); 4105 return true; 4106 } 4107 } 4108 return false; 4109 } 4110 }; 4111 LauncherModel.filterItemInfos(children.keySet(), filter); 4112 4113 // Remove all the apps from their folders 4114 for (FolderInfo folder : folderAppsToRemove.keySet()) { 4115 ArrayList<ShortcutInfo> appsToRemove = folderAppsToRemove.get(folder); 4116 for (ShortcutInfo info : appsToRemove) { 4117 folder.remove(info); 4118 } 4119 } 4120 4121 // Remove all the other children 4122 for (View child : childrenToRemove) { 4123 // Note: We can not remove the view directly from CellLayoutChildren as this 4124 // does not re-mark the spaces as unoccupied. 4125 layoutParent.removeViewInLayout(child); 4126 if (child instanceof DropTarget) { 4127 mDragController.removeDropTarget((DropTarget) child); 4128 } 4129 } 4130 4131 if (childrenToRemove.size() > 0) { 4132 layout.requestLayout(); 4133 layout.invalidate(); 4134 } 4135 } 4136 4137 // Strip all the empty screens 4138 stripEmptyScreens(); 4139 } 4140 4141 void updateShortcuts(ArrayList<AppInfo> apps) { 4142 ArrayList<ShortcutAndWidgetContainer> childrenLayouts = getAllShortcutAndWidgetContainers(); 4143 for (ShortcutAndWidgetContainer layout: childrenLayouts) { 4144 int childCount = layout.getChildCount(); 4145 for (int j = 0; j < childCount; j++) { 4146 final View view = layout.getChildAt(j); 4147 Object tag = view.getTag(); 4148 4149 if (LauncherModel.isShortcutInfoUpdateable((ItemInfo) tag)) { 4150 ShortcutInfo info = (ShortcutInfo) tag; 4151 4152 final Intent intent = info.intent; 4153 final ComponentName name = intent.getComponent(); 4154 final int appCount = apps.size(); 4155 for (int k = 0; k < appCount; k++) { 4156 AppInfo app = apps.get(k); 4157 if (app.componentName.equals(name)) { 4158 BubbleTextView shortcut = (BubbleTextView) view; 4159 info.updateIcon(mIconCache); 4160 info.title = app.title.toString(); 4161 shortcut.applyFromShortcutInfo(info, mIconCache); 4162 } 4163 } 4164 } 4165 } 4166 } 4167 } 4168 4169 private void moveToScreen(int page, boolean animate) { 4170 if (!isSmall()) { 4171 if (animate) { 4172 snapToPage(page); 4173 } else { 4174 setCurrentPage(page); 4175 } 4176 } 4177 View child = getChildAt(page); 4178 if (child != null) { 4179 child.requestFocus(); 4180 } 4181 } 4182 4183 void moveToDefaultScreen(boolean animate) { 4184 moveToScreen(mDefaultPage, animate); 4185 } 4186 4187 void moveToCustomContentScreen(boolean animate) { 4188 if (hasCustomContent()) { 4189 int ccIndex = getPageIndexForScreenId(CUSTOM_CONTENT_SCREEN_ID); 4190 if (animate) { 4191 snapToPage(ccIndex); 4192 } else { 4193 setCurrentPage(ccIndex); 4194 } 4195 View child = getChildAt(ccIndex); 4196 if (child != null) { 4197 child.requestFocus(); 4198 } 4199 } 4200 } 4201 4202 @Override 4203 protected int getPageIndicatorMarker(int pageIndex) { 4204 if (getScreenIdForPageIndex(pageIndex) == CUSTOM_CONTENT_SCREEN_ID) { 4205 return R.layout.custom_content_page_indicator_marker; 4206 } 4207 return super.getPageIndicatorMarker(pageIndex); 4208 } 4209 4210 @Override 4211 public void syncPages() { 4212 } 4213 4214 @Override 4215 public void syncPageItems(int page, boolean immediate) { 4216 } 4217 4218 protected String getCurrentPageDescription() { 4219 int page = (mNextPage != INVALID_PAGE) ? mNextPage : mCurrentPage; 4220 return String.format(getContext().getString(R.string.workspace_scroll_format), 4221 page + 1, getChildCount()); 4222 } 4223 4224 public void getLocationInDragLayer(int[] loc) { 4225 mLauncher.getDragLayer().getLocationInDragLayer(this, loc); 4226 } 4227} 4228