Workspace.java revision 5084cbab0eb0c06bd2778e0a48efaf392717cd10
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.res.Resources; 34import android.content.res.TypedArray; 35import android.graphics.Bitmap; 36import android.graphics.Canvas; 37import android.graphics.Matrix; 38import android.graphics.Point; 39import android.graphics.PointF; 40import android.graphics.Rect; 41import android.graphics.Region.Op; 42import android.graphics.drawable.Drawable; 43import android.net.Uri; 44import android.os.IBinder; 45import android.os.Parcelable; 46import android.util.AttributeSet; 47import android.util.Log; 48import android.util.SparseArray; 49import android.view.Choreographer; 50import android.view.Display; 51import android.view.MotionEvent; 52import android.view.View; 53import android.view.ViewGroup; 54import android.view.ViewParent; 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 setChildrenBackgroundAlphaMultipliers(1f); 364 // Prevent any Un/InstallShortcutReceivers from updating the db while we are dragging 365 InstallShortcutReceiver.enableInstallQueue(); 366 UninstallShortcutReceiver.enableUninstallQueue(); 367 post(new Runnable() { 368 @Override 369 public void run() { 370 if (mIsDragOccuring) { 371 addExtraEmptyScreenOnDrag(); 372 } 373 } 374 }); 375 } 376 377 public void onDragEnd() { 378 mIsDragOccuring = false; 379 updateChildrenLayersEnabled(false); 380 mLauncher.unlockScreenOrientation(false); 381 382 // Re-enable any Un/InstallShortcutReceiver and now process any queued items 383 InstallShortcutReceiver.disableAndFlushInstallQueue(getContext()); 384 UninstallShortcutReceiver.disableAndFlushUninstallQueue(getContext()); 385 386 removeExtraEmptyScreen(); 387 mDragSourceInternal = null; 388 } 389 390 /** 391 * Initializes various states for this workspace. 392 */ 393 protected void initWorkspace() { 394 Context context = getContext(); 395 mCurrentPage = mDefaultPage; 396 Launcher.setScreen(mCurrentPage); 397 LauncherAppState app = LauncherAppState.getInstance(); 398 DeviceProfile grid = app.getDynamicGrid().getDeviceProfile(); 399 mIconCache = app.getIconCache(); 400 setWillNotDraw(false); 401 setClipChildren(false); 402 setClipToPadding(false); 403 setChildrenDrawnWithCacheEnabled(true); 404 setMinScale(0.5f); 405 setupLayoutTransition(); 406 407 final Resources res = getResources(); 408 try { 409 mBackground = res.getDrawable(R.drawable.apps_customize_bg); 410 } catch (Resources.NotFoundException e) { 411 // In this case, we will skip drawing background protection 412 } 413 414 mWallpaperOffset = new WallpaperOffsetInterpolator(); 415 Display display = mLauncher.getWindowManager().getDefaultDisplay(); 416 display.getSize(mDisplaySize); 417 418 mMaxDistanceForFolderCreation = (0.55f * grid.iconSizePx); 419 mFlingThresholdVelocity = (int) (FLING_THRESHOLD_VELOCITY * mDensity); 420 } 421 422 private void setupLayoutTransition() { 423 // We want to show layout transitions when pages are deleted, to close the gap. 424 mLayoutTransition = new LayoutTransition(); 425 mLayoutTransition.enableTransitionType(LayoutTransition.DISAPPEARING); 426 mLayoutTransition.enableTransitionType(LayoutTransition.CHANGE_DISAPPEARING); 427 mLayoutTransition.disableTransitionType(LayoutTransition.APPEARING); 428 mLayoutTransition.disableTransitionType(LayoutTransition.CHANGE_APPEARING); 429 setLayoutTransition(mLayoutTransition); 430 } 431 432 @Override 433 protected int getScrollMode() { 434 return SmoothPagedView.X_LARGE_MODE; 435 } 436 437 @Override 438 public void onChildViewAdded(View parent, View child) { 439 if (!(child instanceof CellLayout)) { 440 throw new IllegalArgumentException("A Workspace can only have CellLayout children."); 441 } 442 CellLayout cl = ((CellLayout) child); 443 cl.setOnInterceptTouchListener(this); 444 cl.setClickable(true); 445 cl.setContentDescription(getContext().getString( 446 R.string.workspace_description_format, getChildCount())); 447 448 super.onChildViewAdded(parent, child); 449 } 450 451 protected boolean shouldDrawChild(View child) { 452 final CellLayout cl = (CellLayout) child; 453 return super.shouldDrawChild(child) && 454 (cl.getShortcutsAndWidgets().getAlpha() > 0 || 455 cl.getBackgroundAlpha() > 0); 456 } 457 458 /** 459 * @return The open folder on the current screen, or null if there is none 460 */ 461 Folder getOpenFolder() { 462 DragLayer dragLayer = mLauncher.getDragLayer(); 463 int count = dragLayer.getChildCount(); 464 for (int i = 0; i < count; i++) { 465 View child = dragLayer.getChildAt(i); 466 if (child instanceof Folder) { 467 Folder folder = (Folder) child; 468 if (folder.getInfo().opened) 469 return folder; 470 } 471 } 472 return null; 473 } 474 475 boolean isTouchActive() { 476 return mTouchState != TOUCH_STATE_REST; 477 } 478 479 public void removeAllWorkspaceScreens() { 480 Launcher.addDumpLog(TAG, "10249126 - removeAllWorkspaceScreens()", true); 481 // Remove the pages and clear the screen models 482 removeAllViews(); 483 mScreenOrder.clear(); 484 mWorkspaceScreens.clear(); 485 } 486 487 public long insertNewWorkspaceScreenBeforeEmptyScreen(long screenId) { 488 // Find the index to insert this view into. If the empty screen exists, then 489 // insert it before that. 490 int insertIndex = mScreenOrder.indexOf(EXTRA_EMPTY_SCREEN_ID); 491 Launcher.addDumpLog(TAG, "10249126 - insertNewWorkspaceScreenBeforeEmptyScreen(" + insertIndex + ")", true); 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 String log = "10249126 - insertNewWorkspaceScreen(" + screenId + ", " + insertIndex + ")"; 504 Launcher.addDumpLog(TAG, log, true); 505 506 if (mWorkspaceScreens.containsKey(screenId)) { 507 throw new RuntimeException("Screen id " + screenId + " already exists!"); 508 } 509 510 CellLayout newScreen = (CellLayout) 511 mLauncher.getLayoutInflater().inflate(R.layout.workspace_screen, null); 512 513 newScreen.setOnLongClickListener(mLongClickListener); 514 newScreen.setOnClickListener(mLauncher); 515 newScreen.setSoundEffectsEnabled(false); 516 mWorkspaceScreens.put(screenId, newScreen); 517 mScreenOrder.add(insertIndex, screenId); 518 addView(newScreen, insertIndex); 519 return screenId; 520 } 521 522 public void createCustomContentPage() { 523 Launcher.addDumpLog(TAG, "10249126 - createCustomContentPage()", true); 524 CellLayout customScreen = (CellLayout) 525 mLauncher.getLayoutInflater().inflate(R.layout.workspace_screen, null); 526 527 mWorkspaceScreens.put(CUSTOM_CONTENT_SCREEN_ID, customScreen); 528 mScreenOrder.add(0, CUSTOM_CONTENT_SCREEN_ID); 529 530 // We want no padding on the custom content 531 customScreen.setPadding(0, 0, 0, 0); 532 533 addFullScreenPage(customScreen); 534 535 // Ensure that the current page and default page are maintained. 536 mDefaultPage = mOriginalDefaultPage + 1; 537 setCurrentPage(getCurrentPage() + 1); 538 } 539 540 public void addToCustomContentPage(View customContent, CustomContentCallbacks callbacks) { 541 if (getPageIndexForScreenId(CUSTOM_CONTENT_SCREEN_ID) < 0) { 542 throw new RuntimeException("Expected custom content screen to exist"); 543 } 544 545 // Add the custom content to the full screen custom page 546 CellLayout customScreen = getScreenWithId(CUSTOM_CONTENT_SCREEN_ID); 547 int spanX = customScreen.getCountX(); 548 int spanY = customScreen.getCountY(); 549 CellLayout.LayoutParams lp = new CellLayout.LayoutParams(0, 0, spanX, spanY); 550 lp.canReorder = false; 551 lp.isFullscreen = true; 552 if (customContent instanceof Insettable) { 553 ((Insettable)customContent).setInsets(mInsets); 554 } 555 customScreen.addViewToCellLayout(customContent, 0, 0, lp, true); 556 557 mCustomContentCallbacks = callbacks; 558 } 559 560 public void addExtraEmptyScreenOnDrag() { 561 boolean lastChildOnScreen = false; 562 boolean childOnFinalScreen = false; 563 564 if (mDragSourceInternal != null) { 565 if (mDragSourceInternal.getChildCount() == 1) { 566 lastChildOnScreen = true; 567 } 568 CellLayout cl = (CellLayout) mDragSourceInternal.getParent(); 569 if (indexOfChild(cl) == getChildCount() - 1) { 570 childOnFinalScreen = true; 571 } 572 } 573 574 // If this is the last item on the final screen 575 if (lastChildOnScreen && childOnFinalScreen) { 576 return; 577 } 578 if (!mWorkspaceScreens.containsKey(EXTRA_EMPTY_SCREEN_ID)) { 579 insertNewWorkspaceScreen(EXTRA_EMPTY_SCREEN_ID); 580 } 581 } 582 583 public boolean addExtraEmptyScreen() { 584 if (!mWorkspaceScreens.containsKey(EXTRA_EMPTY_SCREEN_ID)) { 585 insertNewWorkspaceScreen(EXTRA_EMPTY_SCREEN_ID); 586 return true; 587 } 588 return false; 589 } 590 591 public void removeExtraEmptyScreen() { 592 int nScreens = getChildCount(); 593 nScreens = hasCustomContent() ? nScreens - 1 : nScreens; 594 595 if (mWorkspaceScreens.containsKey(EXTRA_EMPTY_SCREEN_ID) && nScreens > 1) { 596 CellLayout cl = mWorkspaceScreens.get(EXTRA_EMPTY_SCREEN_ID); 597 mWorkspaceScreens.remove(EXTRA_EMPTY_SCREEN_ID); 598 mScreenOrder.remove(EXTRA_EMPTY_SCREEN_ID); 599 removeView(cl); 600 } 601 } 602 603 public long commitExtraEmptyScreen() { 604 Launcher.addDumpLog(TAG, "10249126 - commitExtraEmptyScreen()", true); 605 606 // Write all the logs to disk 607 Launcher.addDumpLog(TAG, "10249126 - commitExtraEmptyScreen() - dumping logs to disk", true); 608 mLauncher.dumpLogsToLocalData(false); 609 610 CellLayout cl = mWorkspaceScreens.get(EXTRA_EMPTY_SCREEN_ID); 611 mWorkspaceScreens.remove(EXTRA_EMPTY_SCREEN_ID); 612 mScreenOrder.remove(EXTRA_EMPTY_SCREEN_ID); 613 614 long newId = LauncherAppState.getLauncherProvider().generateNewScreenId(); 615 mWorkspaceScreens.put(newId, cl); 616 mScreenOrder.add(newId); 617 618 // Update the model for the new screen 619 mLauncher.getModel().updateWorkspaceScreenOrder(mLauncher, mScreenOrder); 620 621 return newId; 622 } 623 624 625 public CellLayout getScreenWithId(long screenId) { 626 Launcher.addDumpLog(TAG, "10249126 - getScreenWithId(" + screenId + ")", true); 627 CellLayout layout = mWorkspaceScreens.get(screenId); 628 return layout; 629 } 630 631 public long getIdForScreen(CellLayout layout) { 632 Launcher.addDumpLog(TAG, "10249126 - getIdForScreen()", true); 633 Iterator<Long> iter = mWorkspaceScreens.keySet().iterator(); 634 while (iter.hasNext()) { 635 long id = iter.next(); 636 if (mWorkspaceScreens.get(id) == layout) { 637 return id; 638 } 639 } 640 return -1; 641 } 642 643 public int getPageIndexForScreenId(long screenId) { 644 Launcher.addDumpLog(TAG, "10249126 - getPageIndexForScreenId(" + screenId + ")", true); 645 return indexOfChild(mWorkspaceScreens.get(screenId)); 646 } 647 648 public long getScreenIdForPageIndex(int index) { 649 if (0 <= index && index < mScreenOrder.size()) { 650 return mScreenOrder.get(index); 651 } 652 return -1; 653 } 654 655 public boolean hasNonCustomEmptyScreens() { 656 Launcher.addDumpLog(TAG, "10249126 - hasNonCustomEmptyScreens()", true); 657 Iterator<Long> iter = mWorkspaceScreens.keySet().iterator(); 658 while (iter.hasNext()) { 659 long id = iter.next(); 660 if (id >= 0) { 661 return true; 662 } 663 } 664 return false; 665 } 666 667 ArrayList<Long> getScreenOrder() { 668 return mScreenOrder; 669 } 670 671 public void stripEmptyScreens() { 672 if (isPageMoving()) { 673 mStripScreensOnPageStopMoving = true; 674 return; 675 } 676 677 Launcher.addDumpLog(TAG, "10249126 - stripEmptyScreens()", true); 678 679 int currentPage = getNextPage(); 680 ArrayList<Long> removeScreens = new ArrayList<Long>(); 681 for (Long id: mWorkspaceScreens.keySet()) { 682 CellLayout cl = mWorkspaceScreens.get(id); 683 if (id >= 0 && cl.getShortcutsAndWidgets().getChildCount() == 0) { 684 removeScreens.add(id); 685 } 686 } 687 688 // We enforce at least one page to add new items to. In the case that we remove the last 689 // such screen, we convert the last screen to the empty screen 690 int minScreens = hasCustomContent() ? 2 : 1; 691 692 int pageShift = 0; 693 for (Long id: removeScreens) { 694 Launcher.addDumpLog(TAG, "10249126 - \tremove(" + id + ")", true); 695 CellLayout cl = mWorkspaceScreens.get(id); 696 mWorkspaceScreens.remove(id); 697 mScreenOrder.remove(id); 698 699 if (getChildCount() > minScreens) { 700 if (indexOfChild(cl) < currentPage) { 701 pageShift++; 702 } 703 removeView(cl); 704 } else { 705 // if this is the last non-custom content screen, convert it to the empty screen 706 mWorkspaceScreens.put(EXTRA_EMPTY_SCREEN_ID, cl); 707 mScreenOrder.add(EXTRA_EMPTY_SCREEN_ID); 708 } 709 } 710 711 if (!removeScreens.isEmpty()) { 712 // Update the model if we have changed any screens 713 mLauncher.getModel().updateWorkspaceScreenOrder(mLauncher, mScreenOrder); 714 } 715 716 if (pageShift >= 0) { 717 setCurrentPage(currentPage - pageShift); 718 } 719 } 720 721 // See implementation for parameter definition. 722 void addInScreen(View child, long container, long screenId, 723 int x, int y, int spanX, int spanY) { 724 addInScreen(child, container, screenId, x, y, spanX, spanY, false, false); 725 } 726 727 // At bind time, we use the rank (screenId) to compute x and y for hotseat items. 728 // See implementation for parameter definition. 729 void addInScreenFromBind(View child, long container, long screenId, int x, int y, 730 int spanX, int spanY) { 731 addInScreen(child, container, screenId, x, y, spanX, spanY, false, true); 732 } 733 734 // See implementation for parameter definition. 735 void addInScreen(View child, long container, long screenId, int x, int y, int spanX, int spanY, 736 boolean insert) { 737 addInScreen(child, container, screenId, x, y, spanX, spanY, insert, false); 738 } 739 740 /** 741 * Adds the specified child in the specified screen. The position and dimension of 742 * the child are defined by x, y, spanX and spanY. 743 * 744 * @param child The child to add in one of the workspace's screens. 745 * @param screenId The screen in which to add the child. 746 * @param x The X position of the child in the screen's grid. 747 * @param y The Y position of the child in the screen's grid. 748 * @param spanX The number of cells spanned horizontally by the child. 749 * @param spanY The number of cells spanned vertically by the child. 750 * @param insert When true, the child is inserted at the beginning of the children list. 751 * @param computeXYFromRank When true, we use the rank (stored in screenId) to compute 752 * the x and y position in which to place hotseat items. Otherwise 753 * we use the x and y position to compute the rank. 754 */ 755 void addInScreen(View child, long container, long screenId, int x, int y, int spanX, int spanY, 756 boolean insert, boolean computeXYFromRank) { 757 if (container == LauncherSettings.Favorites.CONTAINER_DESKTOP) { 758 if (getScreenWithId(screenId) == null) { 759 Log.e(TAG, "Skipping child, screenId " + screenId + " not found"); 760 // DEBUGGING - Print out the stack trace to see where we are adding from 761 new Throwable().printStackTrace(); 762 return; 763 } 764 } 765 if (screenId == EXTRA_EMPTY_SCREEN_ID) { 766 // This should never happen 767 throw new RuntimeException("Screen id should not be EXTRA_EMPTY_SCREEN_ID"); 768 } 769 770 final CellLayout layout; 771 if (container == LauncherSettings.Favorites.CONTAINER_HOTSEAT) { 772 layout = mLauncher.getHotseat().getLayout(); 773 child.setOnKeyListener(null); 774 775 // Hide folder title in the hotseat 776 if (child instanceof FolderIcon) { 777 ((FolderIcon) child).setTextVisible(false); 778 } 779 780 if (computeXYFromRank) { 781 x = mLauncher.getHotseat().getCellXFromOrder((int) screenId); 782 y = mLauncher.getHotseat().getCellYFromOrder((int) screenId); 783 } else { 784 screenId = mLauncher.getHotseat().getOrderInHotseat(x, y); 785 } 786 } else { 787 // Show folder title if not in the hotseat 788 if (child instanceof FolderIcon) { 789 ((FolderIcon) child).setTextVisible(true); 790 } 791 layout = getScreenWithId(screenId); 792 child.setOnKeyListener(new IconKeyEventListener()); 793 } 794 795 ViewGroup.LayoutParams genericLp = child.getLayoutParams(); 796 CellLayout.LayoutParams lp; 797 if (genericLp == null || !(genericLp instanceof CellLayout.LayoutParams)) { 798 lp = new CellLayout.LayoutParams(x, y, spanX, spanY); 799 } else { 800 lp = (CellLayout.LayoutParams) genericLp; 801 lp.cellX = x; 802 lp.cellY = y; 803 lp.cellHSpan = spanX; 804 lp.cellVSpan = spanY; 805 } 806 807 if (spanX < 0 && spanY < 0) { 808 lp.isLockedToGrid = false; 809 } 810 811 // Get the canonical child id to uniquely represent this view in this screen 812 int childId = LauncherModel.getCellLayoutChildId(container, screenId, x, y, spanX, spanY); 813 boolean markCellsAsOccupied = !(child instanceof Folder); 814 if (!layout.addViewToCellLayout(child, insert ? 0 : -1, childId, lp, markCellsAsOccupied)) { 815 // TODO: This branch occurs when the workspace is adding views 816 // outside of the defined grid 817 // maybe we should be deleting these items from the LauncherModel? 818 Launcher.addDumpLog(TAG, "Failed to add to item at (" + lp.cellX + "," + lp.cellY + ") to CellLayout", true); 819 } 820 821 if (!(child instanceof Folder)) { 822 child.setHapticFeedbackEnabled(false); 823 child.setOnLongClickListener(mLongClickListener); 824 } 825 if (child instanceof DropTarget) { 826 mDragController.addDropTarget((DropTarget) child); 827 } 828 } 829 830 /** 831 * Called directly from a CellLayout (not by the framework), after we've been added as a 832 * listener via setOnInterceptTouchEventListener(). This allows us to tell the CellLayout 833 * that it should intercept touch events, which is not something that is normally supported. 834 */ 835 @Override 836 public boolean onTouch(View v, MotionEvent event) { 837 return (isSmall() || !isFinishedSwitchingState()) 838 || (!isSmall() && indexOfChild(v) != mCurrentPage); 839 } 840 841 public boolean isSwitchingState() { 842 return mIsSwitchingState; 843 } 844 845 /** This differs from isSwitchingState in that we take into account how far the transition 846 * has completed. */ 847 public boolean isFinishedSwitchingState() { 848 return !mIsSwitchingState || (mTransitionProgress > 0.5f); 849 } 850 851 protected void onWindowVisibilityChanged (int visibility) { 852 mLauncher.onWindowVisibilityChanged(visibility); 853 if (mCustomContentShowing && mCustomContentCallbacks != null) { 854 if (visibility == View.VISIBLE) { 855 mCustomContentCallbacks.onShow(); 856 } else if (visibility == View.GONE) { 857 mCustomContentCallbacks.onHide(); 858 } 859 } 860 } 861 862 @Override 863 public boolean dispatchUnhandledMove(View focused, int direction) { 864 if (isSmall() || !isFinishedSwitchingState()) { 865 // when the home screens are shrunken, shouldn't allow side-scrolling 866 return false; 867 } 868 return super.dispatchUnhandledMove(focused, direction); 869 } 870 871 @Override 872 public boolean onInterceptTouchEvent(MotionEvent ev) { 873 switch (ev.getAction() & MotionEvent.ACTION_MASK) { 874 case MotionEvent.ACTION_DOWN: 875 mXDown = ev.getX(); 876 mYDown = ev.getY(); 877 mTouchDownTime = System.currentTimeMillis(); 878 break; 879 case MotionEvent.ACTION_POINTER_UP: 880 case MotionEvent.ACTION_UP: 881 if (mTouchState == TOUCH_STATE_REST) { 882 final CellLayout currentPage = (CellLayout) getChildAt(mCurrentPage); 883 if (!currentPage.lastDownOnOccupiedCell()) { 884 onWallpaperTap(ev); 885 } 886 } 887 } 888 return super.onInterceptTouchEvent(ev); 889 } 890 891 protected void reinflateWidgetsIfNecessary() { 892 final int clCount = getChildCount(); 893 for (int i = 0; i < clCount; i++) { 894 CellLayout cl = (CellLayout) getChildAt(i); 895 ShortcutAndWidgetContainer swc = cl.getShortcutsAndWidgets(); 896 final int itemCount = swc.getChildCount(); 897 for (int j = 0; j < itemCount; j++) { 898 View v = swc.getChildAt(j); 899 900 if (v.getTag() instanceof LauncherAppWidgetInfo) { 901 LauncherAppWidgetInfo info = (LauncherAppWidgetInfo) v.getTag(); 902 LauncherAppWidgetHostView lahv = (LauncherAppWidgetHostView) info.hostView; 903 if (lahv != null && lahv.orientationChangedSincedInflation()) { 904 mLauncher.removeAppWidget(info); 905 // Remove the current widget which is inflated with the wrong orientation 906 cl.removeView(lahv); 907 mLauncher.bindAppWidget(info); 908 } 909 } 910 } 911 } 912 } 913 914 @Override 915 protected void determineScrollingStart(MotionEvent ev) { 916 if (!isFinishedSwitchingState()) return; 917 918 float deltaX = ev.getX() - mXDown; 919 float absDeltaX = Math.abs(deltaX); 920 float absDeltaY = Math.abs(ev.getY() - mYDown); 921 922 if (Float.compare(absDeltaX, 0f) == 0) return; 923 924 float slope = absDeltaY / absDeltaX; 925 float theta = (float) Math.atan(slope); 926 927 if (absDeltaX > mTouchSlop || absDeltaY > mTouchSlop) { 928 cancelCurrentPageLongPress(); 929 } 930 931 boolean passRightSwipesToCustomContent = 932 (mTouchDownTime - mCustomContentShowTime) > CUSTOM_CONTENT_GESTURE_DELAY; 933 934 if (deltaX > 0 && getScreenIdForPageIndex(getCurrentPage()) == CUSTOM_CONTENT_SCREEN_ID 935 && passRightSwipesToCustomContent) { 936 // Pass swipes to the right to the custom content page. 937 return; 938 } 939 940 if (theta > MAX_SWIPE_ANGLE) { 941 // Above MAX_SWIPE_ANGLE, we don't want to ever start scrolling the workspace 942 return; 943 } else if (theta > START_DAMPING_TOUCH_SLOP_ANGLE) { 944 // Above START_DAMPING_TOUCH_SLOP_ANGLE and below MAX_SWIPE_ANGLE, we want to 945 // increase the touch slop to make it harder to begin scrolling the workspace. This 946 // results in vertically scrolling widgets to more easily. The higher the angle, the 947 // more we increase touch slop. 948 theta -= START_DAMPING_TOUCH_SLOP_ANGLE; 949 float extraRatio = (float) 950 Math.sqrt((theta / (MAX_SWIPE_ANGLE - START_DAMPING_TOUCH_SLOP_ANGLE))); 951 super.determineScrollingStart(ev, 1 + TOUCH_SLOP_DAMPING_FACTOR * extraRatio); 952 } else { 953 // Below START_DAMPING_TOUCH_SLOP_ANGLE, we don't do anything special 954 super.determineScrollingStart(ev); 955 } 956 } 957 958 protected void onPageBeginMoving() { 959 super.onPageBeginMoving(); 960 961 if (isHardwareAccelerated()) { 962 updateChildrenLayersEnabled(false); 963 } else { 964 if (mNextPage != INVALID_PAGE) { 965 // we're snapping to a particular screen 966 enableChildrenCache(mCurrentPage, mNextPage); 967 } else { 968 // this is when user is actively dragging a particular screen, they might 969 // swipe it either left or right (but we won't advance by more than one screen) 970 enableChildrenCache(mCurrentPage - 1, mCurrentPage + 1); 971 } 972 } 973 974 // Only show page outlines as we pan if we are on large screen 975 if (LauncherAppState.getInstance().isScreenLarge()) { 976 showOutlines(); 977 } 978 979 // If we are not fading in adjacent screens, we still need to restore the alpha in case the 980 // user scrolls while we are transitioning (should not affect dispatchDraw optimizations) 981 if (!mWorkspaceFadeInAdjacentScreens) { 982 for (int i = 0; i < getChildCount(); ++i) { 983 ((CellLayout) getPageAt(i)).setShortcutAndWidgetAlpha(1f); 984 } 985 } 986 } 987 988 protected void onPageEndMoving() { 989 super.onPageEndMoving(); 990 991 if (isHardwareAccelerated()) { 992 updateChildrenLayersEnabled(false); 993 } else { 994 clearChildrenCache(); 995 } 996 997 998 if (mDragController.isDragging()) { 999 if (isSmall()) { 1000 // If we are in springloaded mode, then force an event to check if the current touch 1001 // is under a new page (to scroll to) 1002 mDragController.forceTouchMove(); 1003 } 1004 } else { 1005 // If we are not mid-dragging, hide the page outlines if we are on a large screen 1006 if (LauncherAppState.getInstance().isScreenLarge()) { 1007 hideOutlines(); 1008 } 1009 } 1010 1011 if (mDelayedResizeRunnable != null) { 1012 mDelayedResizeRunnable.run(); 1013 mDelayedResizeRunnable = null; 1014 } 1015 1016 if (mDelayedSnapToPageRunnable != null) { 1017 mDelayedSnapToPageRunnable.run(); 1018 mDelayedSnapToPageRunnable = null; 1019 } 1020 if (mStripScreensOnPageStopMoving) { 1021 stripEmptyScreens(); 1022 mStripScreensOnPageStopMoving = false; 1023 } 1024 1025 if (hasCustomContent() && getNextPage() == 0 && !mCustomContentShowing) { 1026 mCustomContentShowing = true; 1027 if (mCustomContentCallbacks != null) { 1028 mCustomContentCallbacks.onShow(); 1029 mCustomContentShowTime = System.currentTimeMillis(); 1030 } 1031 } else if (hasCustomContent() && getNextPage() != 0 && mCustomContentShowing) { 1032 mCustomContentShowing = false; 1033 if (mCustomContentCallbacks != null) { 1034 mCustomContentCallbacks.onHide(); 1035 mLauncher.resetQSBScroll(); 1036 } 1037 } 1038 } 1039 1040 @Override 1041 protected void notifyPageSwitchListener() { 1042 super.notifyPageSwitchListener(); 1043 Launcher.setScreen(mCurrentPage); 1044 }; 1045 1046 protected void setWallpaperDimension() { 1047 WallpaperPickerActivity.suggestWallpaperDimension(mLauncher.getResources(), 1048 mLauncher.getSharedPrefs(), mLauncher.getWindowManager(), mWallpaperManager); 1049 } 1050 1051 1052 1053 1054 protected void snapToPage(int whichPage, Runnable r) { 1055 if (mDelayedSnapToPageRunnable != null) { 1056 mDelayedSnapToPageRunnable.run(); 1057 } 1058 mDelayedSnapToPageRunnable = r; 1059 snapToPage(whichPage, SLOW_PAGE_SNAP_ANIMATION_DURATION); 1060 } 1061 1062 protected void snapToScreenId(long screenId, Runnable r) { 1063 snapToPage(getPageIndexForScreenId(screenId), r); 1064 } 1065 1066 class WallpaperOffsetInterpolator implements Choreographer.FrameCallback { 1067 float mFinalOffset = 0.0f; 1068 float mCurrentOffset = 0.0f; 1069 //long mLastWallpaperOffsetUpdateTime; 1070 boolean mWaitingForUpdate; 1071 Choreographer mChoreographer; 1072 Interpolator mInterpolator; 1073 boolean mAnimating; 1074 long mAnimationStartTime; 1075 float mAnimationStartOffset; 1076 final int ANIMATION_DURATION = 250; 1077 int mNumScreens; 1078 1079 public WallpaperOffsetInterpolator() { 1080 mChoreographer = Choreographer.getInstance(); 1081 mInterpolator = new DecelerateInterpolator(1.5f); 1082 } 1083 1084 @Override 1085 public void doFrame(long frameTimeNanos) { 1086 updateOffset(false); 1087 } 1088 1089 1090 private void updateOffset(boolean force) { 1091 if (mWaitingForUpdate || force) { 1092 mWaitingForUpdate = false; 1093 if (computeScrollOffset() && mWindowToken != null) { 1094 try { 1095 mWallpaperManager.setWallpaperOffsets(mWindowToken, 1096 mWallpaperOffset.getCurrX(), 0.5f); 1097 setWallpaperOffsetSteps(); 1098 } catch (IllegalArgumentException e) { 1099 Log.e(TAG, "Error updating wallpaper offset: " + e); 1100 } 1101 } 1102 } 1103 } 1104 1105 public boolean computeScrollOffset() { 1106 final float oldOffset = mCurrentOffset; 1107 if (mAnimating) { 1108 long durationSinceAnimation = System.currentTimeMillis() - mAnimationStartTime; 1109 float t0 = durationSinceAnimation / (float) ANIMATION_DURATION; 1110 float t1 = mInterpolator.getInterpolation(t0); 1111 mCurrentOffset = mAnimationStartOffset + 1112 (mFinalOffset - mAnimationStartOffset) * t1; 1113 mAnimating = durationSinceAnimation < ANIMATION_DURATION; 1114 } else { 1115 mCurrentOffset = mFinalOffset; 1116 } 1117 1118 if (Math.abs(mCurrentOffset - mFinalOffset) > 0.0000001f) { 1119 scheduleUpdate(); 1120 } 1121 if (Math.abs(oldOffset - mCurrentOffset) > 0.0000001f) { 1122 return true; 1123 } 1124 return false; 1125 } 1126 1127 private float wallpaperOffsetForCurrentScroll() { 1128 if (getChildCount() <= 1) { 1129 return 0; 1130 } 1131 final int lastIndex = isLayoutRtl() ? 0 : getChildCount() - 1; 1132 final int firstIndex = isLayoutRtl() ? getChildCount() - 2 : 1; 1133 int firstPageScrollX = getScrollForPage(firstIndex); 1134 int scrollRange = getScrollForPage(lastIndex) - firstPageScrollX; 1135 if (scrollRange == 0) { 1136 return 0; 1137 } else { 1138 // do different behavior if it's a live wallpaper? 1139 float offset = (getScrollX() - firstPageScrollX) / (float) scrollRange; 1140 return offset; 1141 } 1142 } 1143 1144 public void syncWithScroll() { 1145 float offset = wallpaperOffsetForCurrentScroll(); 1146 mWallpaperOffset.setFinalX(offset); 1147 updateOffset(true); 1148 } 1149 1150 public float getCurrX() { 1151 return mCurrentOffset; 1152 } 1153 1154 public float getFinalX() { 1155 return mFinalOffset; 1156 } 1157 1158 private void animateToFinal() { 1159 mAnimating = true; 1160 mAnimationStartOffset = mCurrentOffset; 1161 mAnimationStartTime = System.currentTimeMillis(); 1162 } 1163 1164 private void setWallpaperOffsetSteps() { 1165 // Set wallpaper offset steps (1 / (number of screens - 1)) 1166 mWallpaperManager.setWallpaperOffsetSteps(1.0f / (getChildCount() - 1), 1.0f); 1167 } 1168 1169 public void setFinalX(float x) { 1170 scheduleUpdate(); 1171 mFinalOffset = Math.max(0f, Math.min(x, 1.0f)); 1172 if (getChildCount() != mNumScreens) { 1173 if (mNumScreens > 0) { 1174 // Don't animate if we're going from 0 screens 1175 animateToFinal(); 1176 } 1177 mNumScreens = getChildCount(); 1178 } 1179 } 1180 1181 private void scheduleUpdate() { 1182 if (!mWaitingForUpdate) { 1183 mChoreographer.postFrameCallback(this); 1184 mWaitingForUpdate = true; 1185 } 1186 } 1187 1188 public void jumpToFinal() { 1189 mCurrentOffset = mFinalOffset; 1190 } 1191 } 1192 1193 @Override 1194 public void computeScroll() { 1195 super.computeScroll(); 1196 mWallpaperOffset.syncWithScroll(); 1197 } 1198 1199 void showOutlines() { 1200 if (!isSmall() && !mIsSwitchingState) { 1201 if (mChildrenOutlineFadeOutAnimation != null) mChildrenOutlineFadeOutAnimation.cancel(); 1202 if (mChildrenOutlineFadeInAnimation != null) mChildrenOutlineFadeInAnimation.cancel(); 1203 mChildrenOutlineFadeInAnimation = LauncherAnimUtils.ofFloat(this, "childrenOutlineAlpha", 1.0f); 1204 mChildrenOutlineFadeInAnimation.setDuration(CHILDREN_OUTLINE_FADE_IN_DURATION); 1205 mChildrenOutlineFadeInAnimation.start(); 1206 } 1207 } 1208 1209 void hideOutlines() { 1210 if (!isSmall() && !mIsSwitchingState) { 1211 if (mChildrenOutlineFadeInAnimation != null) mChildrenOutlineFadeInAnimation.cancel(); 1212 if (mChildrenOutlineFadeOutAnimation != null) mChildrenOutlineFadeOutAnimation.cancel(); 1213 mChildrenOutlineFadeOutAnimation = LauncherAnimUtils.ofFloat(this, "childrenOutlineAlpha", 0.0f); 1214 mChildrenOutlineFadeOutAnimation.setDuration(CHILDREN_OUTLINE_FADE_OUT_DURATION); 1215 mChildrenOutlineFadeOutAnimation.setStartDelay(CHILDREN_OUTLINE_FADE_OUT_DELAY); 1216 mChildrenOutlineFadeOutAnimation.start(); 1217 } 1218 } 1219 1220 public void showOutlinesTemporarily() { 1221 if (!mIsPageMoving && !isTouchActive()) { 1222 snapToPage(mCurrentPage); 1223 } 1224 } 1225 1226 public void setChildrenOutlineAlpha(float alpha) { 1227 mChildrenOutlineAlpha = alpha; 1228 for (int i = 0; i < getChildCount(); i++) { 1229 CellLayout cl = (CellLayout) getChildAt(i); 1230 cl.setBackgroundAlpha(alpha); 1231 } 1232 } 1233 1234 public float getChildrenOutlineAlpha() { 1235 return mChildrenOutlineAlpha; 1236 } 1237 1238 void disableBackground() { 1239 mDrawBackground = false; 1240 } 1241 void enableBackground() { 1242 mDrawBackground = true; 1243 } 1244 1245 private void animateBackgroundGradient(float finalAlpha, boolean animated) { 1246 if (mBackground == null) return; 1247 if (mBackgroundFadeInAnimation != null) { 1248 mBackgroundFadeInAnimation.cancel(); 1249 mBackgroundFadeInAnimation = null; 1250 } 1251 if (mBackgroundFadeOutAnimation != null) { 1252 mBackgroundFadeOutAnimation.cancel(); 1253 mBackgroundFadeOutAnimation = null; 1254 } 1255 float startAlpha = getBackgroundAlpha(); 1256 if (finalAlpha != startAlpha) { 1257 if (animated) { 1258 mBackgroundFadeOutAnimation = 1259 LauncherAnimUtils.ofFloat(this, startAlpha, finalAlpha); 1260 mBackgroundFadeOutAnimation.addUpdateListener(new AnimatorUpdateListener() { 1261 public void onAnimationUpdate(ValueAnimator animation) { 1262 setBackgroundAlpha(((Float) animation.getAnimatedValue()).floatValue()); 1263 } 1264 }); 1265 mBackgroundFadeOutAnimation.setInterpolator(new DecelerateInterpolator(1.5f)); 1266 mBackgroundFadeOutAnimation.setDuration(BACKGROUND_FADE_OUT_DURATION); 1267 mBackgroundFadeOutAnimation.start(); 1268 } else { 1269 setBackgroundAlpha(finalAlpha); 1270 } 1271 } 1272 } 1273 1274 public void setBackgroundAlpha(float alpha) { 1275 if (alpha != mBackgroundAlpha) { 1276 mBackgroundAlpha = alpha; 1277 invalidate(); 1278 } 1279 } 1280 1281 public float getBackgroundAlpha() { 1282 return mBackgroundAlpha; 1283 } 1284 1285 float backgroundAlphaInterpolator(float r) { 1286 float pivotA = 0.1f; 1287 float pivotB = 0.4f; 1288 if (r < pivotA) { 1289 return 0; 1290 } else if (r > pivotB) { 1291 return 1.0f; 1292 } else { 1293 return (r - pivotA)/(pivotB - pivotA); 1294 } 1295 } 1296 1297 private void updatePageAlphaValues(int screenCenter) { 1298 boolean isInOverscroll = mOverScrollX < 0 || mOverScrollX > mMaxScrollX; 1299 if (mWorkspaceFadeInAdjacentScreens && 1300 mState == State.NORMAL && 1301 !mIsSwitchingState && 1302 !isInOverscroll) { 1303 for (int i = 0; i < getChildCount(); i++) { 1304 CellLayout child = (CellLayout) getChildAt(i); 1305 if (child != null) { 1306 float scrollProgress = getScrollProgress(screenCenter, child, i); 1307 float alpha = 1 - Math.abs(scrollProgress); 1308 child.getShortcutsAndWidgets().setAlpha(alpha); 1309 if (!mIsDragOccuring) { 1310 child.setBackgroundAlphaMultiplier( 1311 backgroundAlphaInterpolator(Math.abs(scrollProgress))); 1312 } else { 1313 child.setBackgroundAlphaMultiplier(1f); 1314 } 1315 } 1316 } 1317 } 1318 } 1319 1320 private void setChildrenBackgroundAlphaMultipliers(float a) { 1321 for (int i = 0; i < getChildCount(); i++) { 1322 CellLayout child = (CellLayout) getChildAt(i); 1323 child.setBackgroundAlphaMultiplier(a); 1324 } 1325 } 1326 1327 public boolean hasCustomContent() { 1328 return (mScreenOrder.size() > 0 && mScreenOrder.get(0) == CUSTOM_CONTENT_SCREEN_ID); 1329 } 1330 1331 public boolean isOnOrMovingToCustomContent() { 1332 return hasCustomContent() && getNextPage() == 0; 1333 } 1334 1335 private void updateStateForCustomContent(int screenCenter) { 1336 if (hasCustomContent() && !isSmall() && !isSwitchingState()) { 1337 int index = mScreenOrder.indexOf(CUSTOM_CONTENT_SCREEN_ID); 1338 int scrollDelta = getScrollForPage(index + 1) - getScrollX(); 1339 float progress = (1.0f * scrollDelta) / 1340 (getScrollForPage(index + 1) - getScrollForPage(index)); 1341 progress = Math.max(0, progress); 1342 1343 if (Float.compare(progress, mLastCustomContentScrollProgress) == 0) return; 1344 mLastCustomContentScrollProgress = progress; 1345 1346 setBackgroundAlpha(progress * 0.8f); 1347 float height = getViewportHeight(); 1348 if (getPageIndicator() != null) { 1349 height -= getPageIndicator().getTop(); 1350 } else if (mLauncher.getHotseat() != null) { 1351 height -= mLauncher.getHotseat().getTop(); 1352 } 1353 float transY = progress * height; 1354 1355 if (mLauncher.getHotseat() != null) { 1356 mLauncher.getHotseat().setTranslationY(transY); 1357 mLauncher.getHotseat().setAlpha(1 - progress); 1358 } 1359 1360 if (getPageIndicator() != null) { 1361 final float alpha = 1 - progress; 1362 final View pi = getPageIndicator(); 1363 getPageIndicator().setAlpha(alpha); 1364 if (alpha < ALPHA_CUTOFF_THRESHOLD && pi.getVisibility() != INVISIBLE) { 1365 pi.setVisibility(INVISIBLE); 1366 } else if (alpha > ALPHA_CUTOFF_THRESHOLD && pi.getVisibility() != VISIBLE) { 1367 pi.setVisibility(VISIBLE); 1368 } 1369 } 1370 1371 if (mCustomContentCallbacks != null) { 1372 mCustomContentCallbacks.onScrollProgressChanged(progress); 1373 } 1374 } 1375 } 1376 1377 @Override 1378 protected void screenScrolled(int screenCenter) { 1379 final boolean isRtl = isLayoutRtl(); 1380 super.screenScrolled(screenCenter); 1381 1382 updatePageAlphaValues(screenCenter); 1383 updateStateForCustomContent(screenCenter); 1384 enableHwLayersOnVisiblePages(); 1385 1386 if ((mOverScrollX < 0 && !hasCustomContent()) || mOverScrollX > mMaxScrollX) { 1387 int index = 0; 1388 float pivotX = 0f; 1389 final float leftBiasedPivot = 0.25f; 1390 final float rightBiasedPivot = 0.75f; 1391 final int lowerIndex = 0; 1392 final int upperIndex = getChildCount() - 1; 1393 if (isRtl) { 1394 index = mOverScrollX < 0 ? upperIndex : lowerIndex; 1395 pivotX = (index == 0 ? leftBiasedPivot : rightBiasedPivot); 1396 } else { 1397 index = mOverScrollX < 0 ? lowerIndex : upperIndex; 1398 pivotX = (index == 0 ? rightBiasedPivot : leftBiasedPivot); 1399 } 1400 1401 CellLayout cl = (CellLayout) getChildAt(index); 1402 float scrollProgress = getScrollProgress(screenCenter, cl, index); 1403 final boolean isLeftPage = (isRtl ? index > 0 : index == 0); 1404 cl.setOverScrollAmount(Math.abs(scrollProgress), isLeftPage); 1405 float rotation = -WORKSPACE_OVERSCROLL_ROTATION * scrollProgress; 1406 cl.setRotationY(rotation); 1407 if (!mOverscrollTransformsSet) { 1408 mOverscrollTransformsSet = true; 1409 cl.setCameraDistance(mDensity * mCameraDistance); 1410 cl.setPivotX(cl.getMeasuredWidth() * pivotX); 1411 cl.setPivotY(cl.getMeasuredHeight() * 0.5f); 1412 cl.setOverscrollTransformsDirty(true); 1413 } 1414 } else { 1415 if (mOverscrollTransformsSet) { 1416 mOverscrollTransformsSet = false; 1417 ((CellLayout) getChildAt(0)).resetOverscrollTransforms(); 1418 ((CellLayout) getChildAt(getChildCount() - 1)).resetOverscrollTransforms(); 1419 } 1420 } 1421 } 1422 1423 @Override 1424 protected void overScroll(float amount) { 1425 acceleratedOverScroll(amount); 1426 } 1427 1428 protected void onAttachedToWindow() { 1429 super.onAttachedToWindow(); 1430 mWindowToken = getWindowToken(); 1431 computeScroll(); 1432 mDragController.setWindowToken(mWindowToken); 1433 } 1434 1435 protected void onDetachedFromWindow() { 1436 super.onDetachedFromWindow(); 1437 mWindowToken = null; 1438 } 1439 1440 @Override 1441 protected void onLayout(boolean changed, int left, int top, int right, int bottom) { 1442 if (mFirstLayout && mCurrentPage >= 0 && mCurrentPage < getChildCount()) { 1443 mWallpaperOffset.syncWithScroll(); 1444 mWallpaperOffset.jumpToFinal(); 1445 } 1446 super.onLayout(changed, left, top, right, bottom); 1447 } 1448 1449 @Override 1450 protected void onDraw(Canvas canvas) { 1451 // Draw the background gradient if necessary 1452 if (mBackground != null && mBackgroundAlpha > 0.0f && mDrawBackground) { 1453 int alpha = (int) (mBackgroundAlpha * 255); 1454 mBackground.setAlpha(alpha); 1455 mBackground.setBounds(getScrollX(), 0, getScrollX() + getMeasuredWidth(), 1456 getMeasuredHeight()); 1457 mBackground.draw(canvas); 1458 } 1459 1460 super.onDraw(canvas); 1461 1462 // Call back to LauncherModel to finish binding after the first draw 1463 post(mBindPages); 1464 } 1465 1466 boolean isDrawingBackgroundGradient() { 1467 return (mBackground != null && mBackgroundAlpha > 0.0f && mDrawBackground); 1468 } 1469 1470 @Override 1471 protected boolean onRequestFocusInDescendants(int direction, Rect previouslyFocusedRect) { 1472 if (!mLauncher.isAllAppsVisible()) { 1473 final Folder openFolder = getOpenFolder(); 1474 if (openFolder != null) { 1475 return openFolder.requestFocus(direction, previouslyFocusedRect); 1476 } else { 1477 return super.onRequestFocusInDescendants(direction, previouslyFocusedRect); 1478 } 1479 } 1480 return false; 1481 } 1482 1483 @Override 1484 public int getDescendantFocusability() { 1485 if (isSmall()) { 1486 return ViewGroup.FOCUS_BLOCK_DESCENDANTS; 1487 } 1488 return super.getDescendantFocusability(); 1489 } 1490 1491 @Override 1492 public void addFocusables(ArrayList<View> views, int direction, int focusableMode) { 1493 if (!mLauncher.isAllAppsVisible()) { 1494 final Folder openFolder = getOpenFolder(); 1495 if (openFolder != null) { 1496 openFolder.addFocusables(views, direction); 1497 } else { 1498 super.addFocusables(views, direction, focusableMode); 1499 } 1500 } 1501 } 1502 1503 public boolean isSmall() { 1504 return mState == State.SMALL || mState == State.SPRING_LOADED || mState == State.OVERVIEW; 1505 } 1506 1507 void enableChildrenCache(int fromPage, int toPage) { 1508 if (fromPage > toPage) { 1509 final int temp = fromPage; 1510 fromPage = toPage; 1511 toPage = temp; 1512 } 1513 1514 final int screenCount = getChildCount(); 1515 1516 fromPage = Math.max(fromPage, 0); 1517 toPage = Math.min(toPage, screenCount - 1); 1518 1519 for (int i = fromPage; i <= toPage; i++) { 1520 final CellLayout layout = (CellLayout) getChildAt(i); 1521 layout.setChildrenDrawnWithCacheEnabled(true); 1522 layout.setChildrenDrawingCacheEnabled(true); 1523 } 1524 } 1525 1526 void clearChildrenCache() { 1527 final int screenCount = getChildCount(); 1528 for (int i = 0; i < screenCount; i++) { 1529 final CellLayout layout = (CellLayout) getChildAt(i); 1530 layout.setChildrenDrawnWithCacheEnabled(false); 1531 // In software mode, we don't want the items to continue to be drawn into bitmaps 1532 if (!isHardwareAccelerated()) { 1533 layout.setChildrenDrawingCacheEnabled(false); 1534 } 1535 } 1536 } 1537 1538 private void updateChildrenLayersEnabled(boolean force) { 1539 boolean small = mState == State.SMALL || mState == State.OVERVIEW || mIsSwitchingState; 1540 boolean enableChildrenLayers = force || small || mAnimatingViewIntoPlace || isPageMoving(); 1541 1542 if (enableChildrenLayers != mChildrenLayersEnabled) { 1543 mChildrenLayersEnabled = enableChildrenLayers; 1544 if (mChildrenLayersEnabled) { 1545 enableHwLayersOnVisiblePages(); 1546 } else { 1547 for (int i = 0; i < getPageCount(); i++) { 1548 final CellLayout cl = (CellLayout) getChildAt(i); 1549 cl.disableHardwareLayers(); 1550 } 1551 } 1552 } 1553 } 1554 1555 private void enableHwLayersOnVisiblePages() { 1556 if (mChildrenLayersEnabled) { 1557 final int screenCount = getChildCount(); 1558 getVisiblePages(mTempVisiblePagesRange); 1559 int leftScreen = mTempVisiblePagesRange[0]; 1560 int rightScreen = mTempVisiblePagesRange[1]; 1561 if (leftScreen == rightScreen) { 1562 // make sure we're caching at least two pages always 1563 if (rightScreen < screenCount - 1) { 1564 rightScreen++; 1565 } else if (leftScreen > 0) { 1566 leftScreen--; 1567 } 1568 } 1569 for (int i = 0; i < screenCount; i++) { 1570 final CellLayout layout = (CellLayout) getPageAt(i); 1571 if (!(leftScreen <= i && i <= rightScreen && shouldDrawChild(layout))) { 1572 layout.disableHardwareLayers(); 1573 } 1574 } 1575 for (int i = 0; i < screenCount; i++) { 1576 final CellLayout layout = (CellLayout) getPageAt(i); 1577 if (leftScreen <= i && i <= rightScreen && shouldDrawChild(layout)) { 1578 layout.enableHardwareLayers(); 1579 } 1580 } 1581 } 1582 } 1583 1584 public void buildPageHardwareLayers() { 1585 // force layers to be enabled just for the call to buildLayer 1586 updateChildrenLayersEnabled(true); 1587 if (getWindowToken() != null) { 1588 final int childCount = getChildCount(); 1589 for (int i = 0; i < childCount; i++) { 1590 CellLayout cl = (CellLayout) getChildAt(i); 1591 cl.buildHardwareLayer(); 1592 } 1593 } 1594 updateChildrenLayersEnabled(false); 1595 } 1596 1597 protected void onWallpaperTap(MotionEvent ev) { 1598 final int[] position = mTempCell; 1599 getLocationOnScreen(position); 1600 1601 int pointerIndex = ev.getActionIndex(); 1602 position[0] += (int) ev.getX(pointerIndex); 1603 position[1] += (int) ev.getY(pointerIndex); 1604 1605 mWallpaperManager.sendWallpaperCommand(getWindowToken(), 1606 ev.getAction() == MotionEvent.ACTION_UP 1607 ? WallpaperManager.COMMAND_TAP : WallpaperManager.COMMAND_SECONDARY_TAP, 1608 position[0], position[1], 0, null); 1609 } 1610 1611 /* 1612 * This interpolator emulates the rate at which the perceived scale of an object changes 1613 * as its distance from a camera increases. When this interpolator is applied to a scale 1614 * animation on a view, it evokes the sense that the object is shrinking due to moving away 1615 * from the camera. 1616 */ 1617 static class ZInterpolator implements TimeInterpolator { 1618 private float focalLength; 1619 1620 public ZInterpolator(float foc) { 1621 focalLength = foc; 1622 } 1623 1624 public float getInterpolation(float input) { 1625 return (1.0f - focalLength / (focalLength + input)) / 1626 (1.0f - focalLength / (focalLength + 1.0f)); 1627 } 1628 } 1629 1630 /* 1631 * The exact reverse of ZInterpolator. 1632 */ 1633 static class InverseZInterpolator implements TimeInterpolator { 1634 private ZInterpolator zInterpolator; 1635 public InverseZInterpolator(float foc) { 1636 zInterpolator = new ZInterpolator(foc); 1637 } 1638 public float getInterpolation(float input) { 1639 return 1 - zInterpolator.getInterpolation(1 - input); 1640 } 1641 } 1642 1643 /* 1644 * ZInterpolator compounded with an ease-out. 1645 */ 1646 static class ZoomOutInterpolator implements TimeInterpolator { 1647 private final DecelerateInterpolator decelerate = new DecelerateInterpolator(0.75f); 1648 private final ZInterpolator zInterpolator = new ZInterpolator(0.13f); 1649 1650 public float getInterpolation(float input) { 1651 return decelerate.getInterpolation(zInterpolator.getInterpolation(input)); 1652 } 1653 } 1654 1655 /* 1656 * InvereZInterpolator compounded with an ease-out. 1657 */ 1658 static class ZoomInInterpolator implements TimeInterpolator { 1659 private final InverseZInterpolator inverseZInterpolator = new InverseZInterpolator(0.35f); 1660 private final DecelerateInterpolator decelerate = new DecelerateInterpolator(3.0f); 1661 1662 public float getInterpolation(float input) { 1663 return decelerate.getInterpolation(inverseZInterpolator.getInterpolation(input)); 1664 } 1665 } 1666 1667 private final ZoomInInterpolator mZoomInInterpolator = new ZoomInInterpolator(); 1668 1669 /* 1670 * 1671 * We call these methods (onDragStartedWithItemSpans/onDragStartedWithSize) whenever we 1672 * start a drag in Launcher, regardless of whether the drag has ever entered the Workspace 1673 * 1674 * These methods mark the appropriate pages as accepting drops (which alters their visual 1675 * appearance). 1676 * 1677 */ 1678 public void onDragStartedWithItem(View v) { 1679 final Canvas canvas = new Canvas(); 1680 1681 // The outline is used to visualize where the item will land if dropped 1682 mDragOutline = createDragOutline(v, canvas, DRAG_BITMAP_PADDING); 1683 } 1684 1685 public void onDragStartedWithItem(PendingAddItemInfo info, Bitmap b, boolean clipAlpha) { 1686 final Canvas canvas = new Canvas(); 1687 1688 int[] size = estimateItemSize(info.spanX, info.spanY, info, false); 1689 1690 // The outline is used to visualize where the item will land if dropped 1691 mDragOutline = createDragOutline(b, canvas, DRAG_BITMAP_PADDING, size[0], 1692 size[1], clipAlpha); 1693 } 1694 1695 public void exitWidgetResizeMode() { 1696 DragLayer dragLayer = mLauncher.getDragLayer(); 1697 dragLayer.clearAllResizeFrames(); 1698 } 1699 1700 private void initAnimationArrays() { 1701 final int childCount = getChildCount(); 1702 if (mLastChildCount == childCount) return; 1703 1704 mOldBackgroundAlphas = new float[childCount]; 1705 mOldAlphas = new float[childCount]; 1706 mNewBackgroundAlphas = new float[childCount]; 1707 mNewAlphas = new float[childCount]; 1708 } 1709 1710 Animator getChangeStateAnimation(final State state, boolean animated) { 1711 return getChangeStateAnimation(state, animated, 0, -1); 1712 } 1713 1714 @Override 1715 protected void getOverviewModePages(int[] range) { 1716 int count = mScreenOrder.size(); 1717 1718 int start = -1; 1719 int end = -1; 1720 // 1721 for (int i = 0; i < count; i++) { 1722 if (start < 0 && mScreenOrder.get(i) >= 0) { 1723 start = i; 1724 } 1725 if (start >=0 && mScreenOrder.get(i) >= 0) { 1726 end = i; 1727 } 1728 } 1729 range[0] = start; 1730 range[1] = end; 1731 } 1732 1733 protected void onStartReordering() { 1734 super.onStartReordering(); 1735 int count = getChildCount(); 1736 for (int i = 0; i < count; i++) { 1737 ((CellLayout) getChildAt(i)).setUseActiveGlowBackground(true); 1738 } 1739 showOutlines(); 1740 1741 // Reordering handles its own animations, disable the automatic ones. 1742 setLayoutTransition(null); 1743 } 1744 1745 protected void onEndReordering() { 1746 super.onEndReordering(); 1747 int count = getChildCount(); 1748 for (int i = 0; i < count; i++) { 1749 ((CellLayout) getChildAt(i)).setUseActiveGlowBackground(false); 1750 } 1751 hideOutlines(); 1752 1753 mScreenOrder.clear(); 1754 for (int i = 0; i < count; i++) { 1755 CellLayout cl = ((CellLayout) getChildAt(i)); 1756 mScreenOrder.add(getIdForScreen(cl)); 1757 } 1758 1759 Launcher.addDumpLog(TAG, "10249126 - onEndReordering()", true); 1760 mLauncher.getModel().updateWorkspaceScreenOrder(mLauncher, mScreenOrder); 1761 1762 // Re-enable auto layout transitions for page deletion. 1763 setLayoutTransition(mLayoutTransition); 1764 } 1765 1766 public boolean isInOverviewMode() { 1767 return mState == State.OVERVIEW; 1768 } 1769 1770 public void enterOverviewMode() { 1771 enableOverviewMode(true, -1); 1772 } 1773 1774 public void exitOverviewMode() { 1775 exitOverviewMode(-1); 1776 } 1777 1778 public void exitOverviewMode(int snapPage) { 1779 enableOverviewMode(false, snapPage); 1780 } 1781 1782 private void enableOverviewMode(boolean enable, int snapPage) { 1783 State finalState = Workspace.State.OVERVIEW; 1784 if (!enable) { 1785 finalState = Workspace.State.NORMAL; 1786 } 1787 1788 Animator workspaceAnim = getChangeStateAnimation(finalState, true, 0, snapPage); 1789 workspaceAnim.addListener(new AnimatorListenerAdapter() { 1790 @Override 1791 public void onAnimationEnd(Animator arg0) { 1792 mIsSwitchingState = false; 1793 } 1794 @Override 1795 public void onAnimationStart(Animator arg0) { 1796 mIsSwitchingState = true; 1797 } 1798 }); 1799 workspaceAnim.start(); 1800 } 1801 1802 Animator getChangeStateAnimation(final State state, boolean animated, int delay, int snapPage) { 1803 if (mState == state) { 1804 return null; 1805 } 1806 1807 // Initialize animation arrays for the first time if necessary 1808 initAnimationArrays(); 1809 1810 AnimatorSet anim = animated ? LauncherAnimUtils.createAnimatorSet() : null; 1811 1812 final State oldState = mState; 1813 final boolean oldStateIsNormal = (oldState == State.NORMAL); 1814 final boolean oldStateIsSpringLoaded = (oldState == State.SPRING_LOADED); 1815 final boolean oldStateIsSmall = (oldState == State.SMALL); 1816 final boolean oldStateIsOverview = (oldState == State.OVERVIEW); 1817 mState = state; 1818 final boolean stateIsNormal = (state == State.NORMAL); 1819 final boolean stateIsSpringLoaded = (state == State.SPRING_LOADED); 1820 final boolean stateIsSmall = (state == State.SMALL); 1821 final boolean stateIsOverview = (state == State.OVERVIEW); 1822 float finalBackgroundAlpha = stateIsSpringLoaded ? 1.0f : 0f; 1823 float finalHotseatAndPageIndicatorAlpha = (stateIsOverview || stateIsSmall) ? 0f : 1f; 1824 float finalOverviewPanelAlpha = stateIsOverview ? 1f : 0f; 1825 1826 boolean zoomIn = true; 1827 mNewScale = 1.0f; 1828 1829 if (oldStateIsOverview) { 1830 disableFreeScroll(snapPage); 1831 } else if (stateIsOverview) { 1832 enableFreeScroll(); 1833 } 1834 1835 if (state != State.NORMAL) { 1836 if (stateIsSpringLoaded) { 1837 mNewScale = mSpringLoadedShrinkFactor; 1838 } else if (stateIsOverview) { 1839 mNewScale = mOverviewModeShrinkFactor; 1840 } else if (stateIsSmall){ 1841 mNewScale = mOverviewModeShrinkFactor - 0.1f; 1842 } 1843 if (oldStateIsNormal && stateIsSmall) { 1844 zoomIn = false; 1845 updateChildrenLayersEnabled(false); 1846 } else { 1847 finalBackgroundAlpha = 1.0f; 1848 } 1849 } 1850 final int duration = zoomIn ? 1851 getResources().getInteger(R.integer.config_workspaceUnshrinkTime) : 1852 getResources().getInteger(R.integer.config_appsCustomizeWorkspaceShrinkTime); 1853 for (int i = 0; i < getChildCount(); i++) { 1854 final CellLayout cl = (CellLayout) getChildAt(i); 1855 float finalAlpha = (!mWorkspaceFadeInAdjacentScreens || stateIsSpringLoaded || 1856 (i == mCurrentPage)) ? 1f : 0f; 1857 float currentAlpha = cl.getShortcutsAndWidgets().getAlpha(); 1858 float initialAlpha = currentAlpha; 1859 1860 // Determine the pages alpha during the state transition 1861 if ((oldStateIsSmall && stateIsNormal) || 1862 (oldStateIsNormal && stateIsSmall)) { 1863 // To/from workspace - only show the current page unless the transition is not 1864 // animated and the animation end callback below doesn't run; 1865 // or, if we're in spring-loaded mode 1866 if (i == mCurrentPage || !animated || oldStateIsSpringLoaded) { 1867 finalAlpha = 1f; 1868 } else { 1869 initialAlpha = 0f; 1870 finalAlpha = 0f; 1871 } 1872 } 1873 1874 mOldAlphas[i] = initialAlpha; 1875 mNewAlphas[i] = finalAlpha; 1876 if (animated) { 1877 mOldBackgroundAlphas[i] = cl.getBackgroundAlpha(); 1878 mNewBackgroundAlphas[i] = finalBackgroundAlpha; 1879 } else { 1880 setScaleX(mNewScale); 1881 setScaleY(mNewScale); 1882 cl.setBackgroundAlpha(finalBackgroundAlpha); 1883 cl.setShortcutAndWidgetAlpha(finalAlpha); 1884 } 1885 } 1886 1887 if (animated) { 1888 LauncherViewPropertyAnimator scale = new LauncherViewPropertyAnimator(this); 1889 scale.scaleX(mNewScale) 1890 .scaleY(mNewScale) 1891 .setInterpolator(mZoomInInterpolator); 1892 anim.play(scale); 1893 for (int index = 0; index < getChildCount(); index++) { 1894 final int i = index; 1895 final CellLayout cl = (CellLayout) getChildAt(i); 1896 float currentAlpha = cl.getShortcutsAndWidgets().getAlpha(); 1897 if (mOldAlphas[i] == 0 && mNewAlphas[i] == 0) { 1898 cl.setBackgroundAlpha(mNewBackgroundAlphas[i]); 1899 cl.setShortcutAndWidgetAlpha(mNewAlphas[i]); 1900 } else { 1901 1902 if (mOldAlphas[i] != mNewAlphas[i] || currentAlpha != mNewAlphas[i]) { 1903 LauncherViewPropertyAnimator alphaAnim = 1904 new LauncherViewPropertyAnimator(cl.getShortcutsAndWidgets()); 1905 alphaAnim.alpha(mNewAlphas[i]) 1906 .setDuration(duration) 1907 .setInterpolator(mZoomInInterpolator); 1908 anim.play(alphaAnim); 1909 } 1910 if (mOldBackgroundAlphas[i] != 0 || 1911 mNewBackgroundAlphas[i] != 0) { 1912 ValueAnimator bgAnim = 1913 LauncherAnimUtils.ofFloat(cl, 0f, 1f).setDuration(duration); 1914 bgAnim.setInterpolator(mZoomInInterpolator); 1915 bgAnim.addUpdateListener(new LauncherAnimatorUpdateListener() { 1916 public void onAnimationUpdate(float a, float b) { 1917 cl.setBackgroundAlpha( 1918 a * mOldBackgroundAlphas[i] + 1919 b * mNewBackgroundAlphas[i]); 1920 } 1921 }); 1922 anim.play(bgAnim); 1923 } 1924 } 1925 } 1926 ObjectAnimator pageIndicatorAlpha = null; 1927 if (getPageIndicator() != null) { 1928 pageIndicatorAlpha = ObjectAnimator.ofFloat(getPageIndicator(), "alpha", 1929 finalHotseatAndPageIndicatorAlpha); 1930 } 1931 ObjectAnimator hotseatAlpha = ObjectAnimator.ofFloat(mLauncher.getHotseat(), "alpha", 1932 finalHotseatAndPageIndicatorAlpha); 1933 ObjectAnimator overviewPanelAlpha = ObjectAnimator.ofFloat(mLauncher.getOverviewPanel(), 1934 "alpha", finalOverviewPanelAlpha); 1935 overviewPanelAlpha.addUpdateListener(new AlphaUpdateListener( 1936 mLauncher.getOverviewPanel())); 1937 hotseatAlpha.addUpdateListener(new AlphaUpdateListener(mLauncher.getHotseat())); 1938 if (getPageIndicator() != null) { 1939 pageIndicatorAlpha.addUpdateListener(new AlphaUpdateListener(getPageIndicator())); 1940 } 1941 anim.play(overviewPanelAlpha); 1942 anim.play(hotseatAlpha); 1943 anim.play(pageIndicatorAlpha); 1944 anim.setStartDelay(delay); 1945 } else { 1946 mLauncher.getOverviewPanel().setAlpha(finalOverviewPanelAlpha); 1947 mLauncher.getHotseat().setAlpha(finalHotseatAndPageIndicatorAlpha); 1948 if (getPageIndicator() != null) { 1949 getPageIndicator().setAlpha(finalHotseatAndPageIndicatorAlpha); 1950 } 1951 } 1952 1953 if (stateIsSpringLoaded) { 1954 // Right now we're covered by Apps Customize 1955 // Show the background gradient immediately, so the gradient will 1956 // be showing once AppsCustomize disappears 1957 animateBackgroundGradient(getResources().getInteger( 1958 R.integer.config_appsCustomizeSpringLoadedBgAlpha) / 100f, false); 1959 } else { 1960 // Fade the background gradient away 1961 animateBackgroundGradient(0f, true); 1962 } 1963 return anim; 1964 } 1965 1966 class AlphaUpdateListener implements AnimatorUpdateListener { 1967 View view; 1968 public AlphaUpdateListener(View v) { 1969 view = v; 1970 } 1971 1972 @Override 1973 public void onAnimationUpdate(ValueAnimator arg0) { 1974 if (view.getAlpha() < ALPHA_CUTOFF_THRESHOLD && view.getVisibility() != INVISIBLE) { 1975 view.setVisibility(INVISIBLE); 1976 } else if (view.getAlpha() > ALPHA_CUTOFF_THRESHOLD 1977 && view.getVisibility() != VISIBLE) { 1978 view.setVisibility(VISIBLE); 1979 } 1980 } 1981 1982 } 1983 1984 @Override 1985 public void onLauncherTransitionPrepare(Launcher l, boolean animated, boolean toWorkspace) { 1986 mIsSwitchingState = true; 1987 updateChildrenLayersEnabled(false); 1988 } 1989 1990 @Override 1991 public void onLauncherTransitionStart(Launcher l, boolean animated, boolean toWorkspace) { 1992 } 1993 1994 @Override 1995 public void onLauncherTransitionStep(Launcher l, float t) { 1996 mTransitionProgress = t; 1997 } 1998 1999 @Override 2000 public void onLauncherTransitionEnd(Launcher l, boolean animated, boolean toWorkspace) { 2001 mIsSwitchingState = false; 2002 updateChildrenLayersEnabled(false); 2003 // The code in getChangeStateAnimation to determine initialAlpha and finalAlpha will ensure 2004 // ensure that only the current page is visible during (and subsequently, after) the 2005 // transition animation. If fade adjacent pages is disabled, then re-enable the page 2006 // visibility after the transition animation. 2007 if (!mWorkspaceFadeInAdjacentScreens) { 2008 for (int i = 0; i < getChildCount(); i++) { 2009 final CellLayout cl = (CellLayout) getChildAt(i); 2010 cl.setShortcutAndWidgetAlpha(1f); 2011 } 2012 } 2013 } 2014 2015 @Override 2016 public View getContent() { 2017 return this; 2018 } 2019 2020 /** 2021 * Draw the View v into the given Canvas. 2022 * 2023 * @param v the view to draw 2024 * @param destCanvas the canvas to draw on 2025 * @param padding the horizontal and vertical padding to use when drawing 2026 */ 2027 private void drawDragView(View v, Canvas destCanvas, int padding, boolean pruneToDrawable) { 2028 final Rect clipRect = mTempRect; 2029 v.getDrawingRect(clipRect); 2030 2031 boolean textVisible = false; 2032 2033 destCanvas.save(); 2034 if (v instanceof TextView && pruneToDrawable) { 2035 Drawable d = ((TextView) v).getCompoundDrawables()[1]; 2036 clipRect.set(0, 0, d.getIntrinsicWidth() + padding, d.getIntrinsicHeight() + padding); 2037 destCanvas.translate(padding / 2, padding / 2); 2038 d.draw(destCanvas); 2039 } else { 2040 if (v instanceof FolderIcon) { 2041 // For FolderIcons the text can bleed into the icon area, and so we need to 2042 // hide the text completely (which can't be achieved by clipping). 2043 if (((FolderIcon) v).getTextVisible()) { 2044 ((FolderIcon) v).setTextVisible(false); 2045 textVisible = true; 2046 } 2047 } else if (v instanceof BubbleTextView) { 2048 final BubbleTextView tv = (BubbleTextView) v; 2049 clipRect.bottom = tv.getExtendedPaddingTop() - (int) BubbleTextView.PADDING_V + 2050 tv.getLayout().getLineTop(0); 2051 } else if (v instanceof TextView) { 2052 final TextView tv = (TextView) v; 2053 clipRect.bottom = tv.getExtendedPaddingTop() - tv.getCompoundDrawablePadding() + 2054 tv.getLayout().getLineTop(0); 2055 } 2056 destCanvas.translate(-v.getScrollX() + padding / 2, -v.getScrollY() + padding / 2); 2057 destCanvas.clipRect(clipRect, Op.REPLACE); 2058 v.draw(destCanvas); 2059 2060 // Restore text visibility of FolderIcon if necessary 2061 if (textVisible) { 2062 ((FolderIcon) v).setTextVisible(true); 2063 } 2064 } 2065 destCanvas.restore(); 2066 } 2067 2068 /** 2069 * Returns a new bitmap to show when the given View is being dragged around. 2070 * Responsibility for the bitmap is transferred to the caller. 2071 */ 2072 public Bitmap createDragBitmap(View v, Canvas canvas, int padding) { 2073 Bitmap b; 2074 2075 if (v instanceof TextView) { 2076 Drawable d = ((TextView) v).getCompoundDrawables()[1]; 2077 b = Bitmap.createBitmap(d.getIntrinsicWidth() + padding, 2078 d.getIntrinsicHeight() + padding, Bitmap.Config.ARGB_8888); 2079 } else { 2080 b = Bitmap.createBitmap( 2081 v.getWidth() + padding, v.getHeight() + padding, Bitmap.Config.ARGB_8888); 2082 } 2083 2084 canvas.setBitmap(b); 2085 drawDragView(v, canvas, padding, true); 2086 canvas.setBitmap(null); 2087 2088 return b; 2089 } 2090 2091 /** 2092 * Returns a new bitmap to be used as the object outline, e.g. to visualize the drop location. 2093 * Responsibility for the bitmap is transferred to the caller. 2094 */ 2095 private Bitmap createDragOutline(View v, Canvas canvas, int padding) { 2096 final int outlineColor = getResources().getColor(android.R.color.holo_blue_light); 2097 final Bitmap b = Bitmap.createBitmap( 2098 v.getWidth() + padding, v.getHeight() + padding, Bitmap.Config.ARGB_8888); 2099 2100 canvas.setBitmap(b); 2101 drawDragView(v, canvas, padding, true); 2102 mOutlineHelper.applyMediumExpensiveOutlineWithBlur(b, canvas, outlineColor, outlineColor); 2103 canvas.setBitmap(null); 2104 return b; 2105 } 2106 2107 /** 2108 * Returns a new bitmap to be used as the object outline, e.g. to visualize the drop location. 2109 * Responsibility for the bitmap is transferred to the caller. 2110 */ 2111 private Bitmap createDragOutline(Bitmap orig, Canvas canvas, int padding, int w, int h, 2112 boolean clipAlpha) { 2113 final int outlineColor = getResources().getColor(android.R.color.holo_blue_light); 2114 final Bitmap b = Bitmap.createBitmap(w, h, Bitmap.Config.ARGB_8888); 2115 canvas.setBitmap(b); 2116 2117 Rect src = new Rect(0, 0, orig.getWidth(), orig.getHeight()); 2118 float scaleFactor = Math.min((w - padding) / (float) orig.getWidth(), 2119 (h - padding) / (float) orig.getHeight()); 2120 int scaledWidth = (int) (scaleFactor * orig.getWidth()); 2121 int scaledHeight = (int) (scaleFactor * orig.getHeight()); 2122 Rect dst = new Rect(0, 0, scaledWidth, scaledHeight); 2123 2124 // center the image 2125 dst.offset((w - scaledWidth) / 2, (h - scaledHeight) / 2); 2126 2127 canvas.drawBitmap(orig, src, dst, null); 2128 mOutlineHelper.applyMediumExpensiveOutlineWithBlur(b, canvas, outlineColor, outlineColor, 2129 clipAlpha); 2130 canvas.setBitmap(null); 2131 2132 return b; 2133 } 2134 2135 void startDrag(CellLayout.CellInfo cellInfo) { 2136 View child = cellInfo.cell; 2137 2138 // Make sure the drag was started by a long press as opposed to a long click. 2139 if (!child.isInTouchMode()) { 2140 return; 2141 } 2142 2143 mDragInfo = cellInfo; 2144 child.setVisibility(INVISIBLE); 2145 CellLayout layout = (CellLayout) child.getParent().getParent(); 2146 layout.prepareChildForDrag(child); 2147 2148 child.clearFocus(); 2149 child.setPressed(false); 2150 2151 final Canvas canvas = new Canvas(); 2152 2153 // The outline is used to visualize where the item will land if dropped 2154 mDragOutline = createDragOutline(child, canvas, DRAG_BITMAP_PADDING); 2155 beginDragShared(child, this); 2156 } 2157 2158 public void beginDragShared(View child, DragSource source) { 2159 // The drag bitmap follows the touch point around on the screen 2160 final Bitmap b = createDragBitmap(child, new Canvas(), DRAG_BITMAP_PADDING); 2161 2162 final int bmpWidth = b.getWidth(); 2163 final int bmpHeight = b.getHeight(); 2164 2165 float scale = mLauncher.getDragLayer().getLocationInDragLayer(child, mTempXY); 2166 int dragLayerX = 2167 Math.round(mTempXY[0] - (bmpWidth - scale * child.getWidth()) / 2); 2168 int dragLayerY = 2169 Math.round(mTempXY[1] - (bmpHeight - scale * bmpHeight) / 2 2170 - DRAG_BITMAP_PADDING / 2); 2171 2172 LauncherAppState app = LauncherAppState.getInstance(); 2173 DeviceProfile grid = app.getDynamicGrid().getDeviceProfile(); 2174 Point dragVisualizeOffset = null; 2175 Rect dragRect = null; 2176 if (child instanceof BubbleTextView || child instanceof PagedViewIcon) { 2177 int iconSize = grid.iconSizePx; 2178 int top = child.getPaddingTop(); 2179 int left = (bmpWidth - iconSize) / 2; 2180 int right = left + iconSize; 2181 int bottom = top + iconSize; 2182 dragLayerY += top; 2183 // Note: The drag region is used to calculate drag layer offsets, but the 2184 // dragVisualizeOffset in addition to the dragRect (the size) to position the outline. 2185 dragVisualizeOffset = new Point(-DRAG_BITMAP_PADDING / 2, DRAG_BITMAP_PADDING / 2); 2186 dragRect = new Rect(left, top, right, bottom); 2187 } else if (child instanceof FolderIcon) { 2188 int previewSize = grid.folderIconSizePx; 2189 dragRect = new Rect(0, child.getPaddingTop(), child.getWidth(), previewSize); 2190 } 2191 2192 // Clear the pressed state if necessary 2193 if (child instanceof BubbleTextView) { 2194 BubbleTextView icon = (BubbleTextView) child; 2195 icon.clearPressedOrFocusedBackground(); 2196 } 2197 2198 mDragController.startDrag(b, dragLayerX, dragLayerY, source, child.getTag(), 2199 DragController.DRAG_ACTION_MOVE, dragVisualizeOffset, dragRect, scale); 2200 2201 if (child.getParent() instanceof ShortcutAndWidgetContainer) { 2202 mDragSourceInternal = (ShortcutAndWidgetContainer) child.getParent(); 2203 } 2204 2205 b.recycle(); 2206 } 2207 2208 void addApplicationShortcut(ShortcutInfo info, CellLayout target, long container, long screenId, 2209 int cellX, int cellY, boolean insertAtFirst, int intersectX, int intersectY) { 2210 View view = mLauncher.createShortcut(R.layout.application, target, (ShortcutInfo) info); 2211 2212 final int[] cellXY = new int[2]; 2213 target.findCellForSpanThatIntersects(cellXY, 1, 1, intersectX, intersectY); 2214 addInScreen(view, container, screenId, cellXY[0], cellXY[1], 1, 1, insertAtFirst); 2215 2216 LauncherModel.addOrMoveItemInDatabase(mLauncher, info, container, screenId, cellXY[0], 2217 cellXY[1]); 2218 } 2219 2220 public boolean transitionStateShouldAllowDrop() { 2221 return ((!isSwitchingState() || mTransitionProgress > 0.5f) && mState != State.SMALL); 2222 } 2223 2224 /** 2225 * {@inheritDoc} 2226 */ 2227 public boolean acceptDrop(DragObject d) { 2228 // If it's an external drop (e.g. from All Apps), check if it should be accepted 2229 CellLayout dropTargetLayout = mDropToLayout; 2230 if (d.dragSource != this) { 2231 // Don't accept the drop if we're not over a screen at time of drop 2232 if (dropTargetLayout == null) { 2233 return false; 2234 } 2235 if (!transitionStateShouldAllowDrop()) return false; 2236 2237 mDragViewVisualCenter = getDragViewVisualCenter(d.x, d.y, d.xOffset, d.yOffset, 2238 d.dragView, mDragViewVisualCenter); 2239 2240 // We want the point to be mapped to the dragTarget. 2241 if (mLauncher.isHotseatLayout(dropTargetLayout)) { 2242 mapPointFromSelfToHotseatLayout(mLauncher.getHotseat(), mDragViewVisualCenter); 2243 } else { 2244 mapPointFromSelfToChild(dropTargetLayout, mDragViewVisualCenter, null); 2245 } 2246 2247 int spanX = 1; 2248 int spanY = 1; 2249 if (mDragInfo != null) { 2250 final CellLayout.CellInfo dragCellInfo = mDragInfo; 2251 spanX = dragCellInfo.spanX; 2252 spanY = dragCellInfo.spanY; 2253 } else { 2254 final ItemInfo dragInfo = (ItemInfo) d.dragInfo; 2255 spanX = dragInfo.spanX; 2256 spanY = dragInfo.spanY; 2257 } 2258 2259 int minSpanX = spanX; 2260 int minSpanY = spanY; 2261 if (d.dragInfo instanceof PendingAddWidgetInfo) { 2262 minSpanX = ((PendingAddWidgetInfo) d.dragInfo).minSpanX; 2263 minSpanY = ((PendingAddWidgetInfo) d.dragInfo).minSpanY; 2264 } 2265 2266 mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], 2267 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, dropTargetLayout, 2268 mTargetCell); 2269 float distance = dropTargetLayout.getDistanceFromCell(mDragViewVisualCenter[0], 2270 mDragViewVisualCenter[1], mTargetCell); 2271 if (willCreateUserFolder((ItemInfo) d.dragInfo, dropTargetLayout, 2272 mTargetCell, distance, true)) { 2273 return true; 2274 } 2275 if (willAddToExistingUserFolder((ItemInfo) d.dragInfo, dropTargetLayout, 2276 mTargetCell, distance)) { 2277 return true; 2278 } 2279 2280 int[] resultSpan = new int[2]; 2281 mTargetCell = dropTargetLayout.createArea((int) mDragViewVisualCenter[0], 2282 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, spanX, spanY, 2283 null, mTargetCell, resultSpan, CellLayout.MODE_ACCEPT_DROP); 2284 boolean foundCell = mTargetCell[0] >= 0 && mTargetCell[1] >= 0; 2285 2286 // Don't accept the drop if there's no room for the item 2287 if (!foundCell) { 2288 // Don't show the message if we are dropping on the AllApps button and the hotseat 2289 // is full 2290 boolean isHotseat = mLauncher.isHotseatLayout(dropTargetLayout); 2291 if (mTargetCell != null && isHotseat) { 2292 Hotseat hotseat = mLauncher.getHotseat(); 2293 if (hotseat.isAllAppsButtonRank( 2294 hotseat.getOrderInHotseat(mTargetCell[0], mTargetCell[1]))) { 2295 return false; 2296 } 2297 } 2298 2299 mLauncher.showOutOfSpaceMessage(isHotseat); 2300 return false; 2301 } 2302 } 2303 2304 long screenId = getIdForScreen(dropTargetLayout); 2305 if (screenId == EXTRA_EMPTY_SCREEN_ID) { 2306 commitExtraEmptyScreen(); 2307 } 2308 2309 return true; 2310 } 2311 2312 boolean willCreateUserFolder(ItemInfo info, CellLayout target, int[] targetCell, float 2313 distance, boolean considerTimeout) { 2314 if (distance > mMaxDistanceForFolderCreation) return false; 2315 View dropOverView = target.getChildAt(targetCell[0], targetCell[1]); 2316 2317 if (dropOverView != null) { 2318 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) dropOverView.getLayoutParams(); 2319 if (lp.useTmpCoords && (lp.tmpCellX != lp.cellX || lp.tmpCellY != lp.tmpCellY)) { 2320 return false; 2321 } 2322 } 2323 2324 boolean hasntMoved = false; 2325 if (mDragInfo != null) { 2326 hasntMoved = dropOverView == mDragInfo.cell; 2327 } 2328 2329 if (dropOverView == null || hasntMoved || (considerTimeout && !mCreateUserFolderOnDrop)) { 2330 return false; 2331 } 2332 2333 boolean aboveShortcut = (dropOverView.getTag() instanceof ShortcutInfo); 2334 boolean willBecomeShortcut = 2335 (info.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPLICATION || 2336 info.itemType == LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT); 2337 2338 return (aboveShortcut && willBecomeShortcut); 2339 } 2340 2341 boolean willAddToExistingUserFolder(Object dragInfo, CellLayout target, int[] targetCell, 2342 float distance) { 2343 if (distance > mMaxDistanceForFolderCreation) return false; 2344 View dropOverView = target.getChildAt(targetCell[0], targetCell[1]); 2345 2346 if (dropOverView != null) { 2347 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) dropOverView.getLayoutParams(); 2348 if (lp.useTmpCoords && (lp.tmpCellX != lp.cellX || lp.tmpCellY != lp.tmpCellY)) { 2349 return false; 2350 } 2351 } 2352 2353 if (dropOverView instanceof FolderIcon) { 2354 FolderIcon fi = (FolderIcon) dropOverView; 2355 if (fi.acceptDrop(dragInfo)) { 2356 return true; 2357 } 2358 } 2359 return false; 2360 } 2361 2362 boolean createUserFolderIfNecessary(View newView, long container, CellLayout target, 2363 int[] targetCell, float distance, boolean external, DragView dragView, 2364 Runnable postAnimationRunnable) { 2365 if (distance > mMaxDistanceForFolderCreation) return false; 2366 View v = target.getChildAt(targetCell[0], targetCell[1]); 2367 2368 boolean hasntMoved = false; 2369 if (mDragInfo != null) { 2370 CellLayout cellParent = getParentCellLayoutForView(mDragInfo.cell); 2371 hasntMoved = (mDragInfo.cellX == targetCell[0] && 2372 mDragInfo.cellY == targetCell[1]) && (cellParent == target); 2373 } 2374 2375 if (v == null || hasntMoved || !mCreateUserFolderOnDrop) return false; 2376 mCreateUserFolderOnDrop = false; 2377 final long screenId = (targetCell == null) ? mDragInfo.screenId : getIdForScreen(target); 2378 2379 boolean aboveShortcut = (v.getTag() instanceof ShortcutInfo); 2380 boolean willBecomeShortcut = (newView.getTag() instanceof ShortcutInfo); 2381 2382 if (aboveShortcut && willBecomeShortcut) { 2383 ShortcutInfo sourceInfo = (ShortcutInfo) newView.getTag(); 2384 ShortcutInfo destInfo = (ShortcutInfo) v.getTag(); 2385 // if the drag started here, we need to remove it from the workspace 2386 if (!external) { 2387 getParentCellLayoutForView(mDragInfo.cell).removeView(mDragInfo.cell); 2388 } 2389 2390 Rect folderLocation = new Rect(); 2391 float scale = mLauncher.getDragLayer().getDescendantRectRelativeToSelf(v, folderLocation); 2392 target.removeView(v); 2393 2394 FolderIcon fi = 2395 mLauncher.addFolder(target, container, screenId, targetCell[0], targetCell[1]); 2396 destInfo.cellX = -1; 2397 destInfo.cellY = -1; 2398 sourceInfo.cellX = -1; 2399 sourceInfo.cellY = -1; 2400 2401 // If the dragView is null, we can't animate 2402 boolean animate = dragView != null; 2403 if (animate) { 2404 fi.performCreateAnimation(destInfo, v, sourceInfo, dragView, folderLocation, scale, 2405 postAnimationRunnable); 2406 } else { 2407 fi.addItem(destInfo); 2408 fi.addItem(sourceInfo); 2409 } 2410 return true; 2411 } 2412 return false; 2413 } 2414 2415 boolean addToExistingFolderIfNecessary(View newView, CellLayout target, int[] targetCell, 2416 float distance, DragObject d, boolean external) { 2417 if (distance > mMaxDistanceForFolderCreation) return false; 2418 2419 View dropOverView = target.getChildAt(targetCell[0], targetCell[1]); 2420 if (!mAddToExistingFolderOnDrop) return false; 2421 mAddToExistingFolderOnDrop = false; 2422 2423 if (dropOverView instanceof FolderIcon) { 2424 FolderIcon fi = (FolderIcon) dropOverView; 2425 if (fi.acceptDrop(d.dragInfo)) { 2426 fi.onDrop(d); 2427 2428 // if the drag started here, we need to remove it from the workspace 2429 if (!external) { 2430 getParentCellLayoutForView(mDragInfo.cell).removeView(mDragInfo.cell); 2431 } 2432 return true; 2433 } 2434 } 2435 return false; 2436 } 2437 2438 public void onDrop(final DragObject d) { 2439 mDragViewVisualCenter = getDragViewVisualCenter(d.x, d.y, d.xOffset, d.yOffset, d.dragView, 2440 mDragViewVisualCenter); 2441 2442 CellLayout dropTargetLayout = mDropToLayout; 2443 2444 // We want the point to be mapped to the dragTarget. 2445 if (dropTargetLayout != null) { 2446 if (mLauncher.isHotseatLayout(dropTargetLayout)) { 2447 mapPointFromSelfToHotseatLayout(mLauncher.getHotseat(), mDragViewVisualCenter); 2448 } else { 2449 mapPointFromSelfToChild(dropTargetLayout, mDragViewVisualCenter, null); 2450 } 2451 } 2452 2453 int snapScreen = -1; 2454 boolean resizeOnDrop = false; 2455 if (d.dragSource != this) { 2456 final int[] touchXY = new int[] { (int) mDragViewVisualCenter[0], 2457 (int) mDragViewVisualCenter[1] }; 2458 onDropExternal(touchXY, d.dragInfo, dropTargetLayout, false, d); 2459 } else if (mDragInfo != null) { 2460 final View cell = mDragInfo.cell; 2461 2462 Runnable resizeRunnable = null; 2463 if (dropTargetLayout != null && !d.cancelled) { 2464 // Move internally 2465 boolean hasMovedLayouts = (getParentCellLayoutForView(cell) != dropTargetLayout); 2466 boolean hasMovedIntoHotseat = mLauncher.isHotseatLayout(dropTargetLayout); 2467 long container = hasMovedIntoHotseat ? 2468 LauncherSettings.Favorites.CONTAINER_HOTSEAT : 2469 LauncherSettings.Favorites.CONTAINER_DESKTOP; 2470 long screenId = (mTargetCell[0] < 0) ? 2471 mDragInfo.screenId : getIdForScreen(dropTargetLayout); 2472 int spanX = mDragInfo != null ? mDragInfo.spanX : 1; 2473 int spanY = mDragInfo != null ? mDragInfo.spanY : 1; 2474 // First we find the cell nearest to point at which the item is 2475 // dropped, without any consideration to whether there is an item there. 2476 2477 mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], (int) 2478 mDragViewVisualCenter[1], spanX, spanY, dropTargetLayout, mTargetCell); 2479 float distance = dropTargetLayout.getDistanceFromCell(mDragViewVisualCenter[0], 2480 mDragViewVisualCenter[1], mTargetCell); 2481 2482 // If the item being dropped is a shortcut and the nearest drop 2483 // cell also contains a shortcut, then create a folder with the two shortcuts. 2484 if (!mInScrollArea && createUserFolderIfNecessary(cell, container, 2485 dropTargetLayout, mTargetCell, distance, false, d.dragView, null)) { 2486 stripEmptyScreens(); 2487 return; 2488 } 2489 2490 if (addToExistingFolderIfNecessary(cell, dropTargetLayout, mTargetCell, 2491 distance, d, false)) { 2492 stripEmptyScreens(); 2493 return; 2494 } 2495 2496 // Aside from the special case where we're dropping a shortcut onto a shortcut, 2497 // we need to find the nearest cell location that is vacant 2498 ItemInfo item = (ItemInfo) d.dragInfo; 2499 int minSpanX = item.spanX; 2500 int minSpanY = item.spanY; 2501 if (item.minSpanX > 0 && item.minSpanY > 0) { 2502 minSpanX = item.minSpanX; 2503 minSpanY = item.minSpanY; 2504 } 2505 2506 int[] resultSpan = new int[2]; 2507 mTargetCell = dropTargetLayout.createArea((int) mDragViewVisualCenter[0], 2508 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, spanX, spanY, cell, 2509 mTargetCell, resultSpan, CellLayout.MODE_ON_DROP); 2510 2511 boolean foundCell = mTargetCell[0] >= 0 && mTargetCell[1] >= 0; 2512 2513 // if the widget resizes on drop 2514 if (foundCell && (cell instanceof AppWidgetHostView) && 2515 (resultSpan[0] != item.spanX || resultSpan[1] != item.spanY)) { 2516 resizeOnDrop = true; 2517 item.spanX = resultSpan[0]; 2518 item.spanY = resultSpan[1]; 2519 AppWidgetHostView awhv = (AppWidgetHostView) cell; 2520 AppWidgetResizeFrame.updateWidgetSizeRanges(awhv, mLauncher, resultSpan[0], 2521 resultSpan[1]); 2522 } 2523 2524 if (getScreenIdForPageIndex(mCurrentPage) != screenId && !hasMovedIntoHotseat) { 2525 snapScreen = getPageIndexForScreenId(screenId); 2526 snapToPage(snapScreen); 2527 } 2528 2529 if (foundCell) { 2530 final ItemInfo info = (ItemInfo) cell.getTag(); 2531 if (hasMovedLayouts) { 2532 // Reparent the view 2533 getParentCellLayoutForView(cell).removeView(cell); 2534 addInScreen(cell, container, screenId, mTargetCell[0], mTargetCell[1], 2535 info.spanX, info.spanY); 2536 } 2537 2538 // update the item's position after drop 2539 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) cell.getLayoutParams(); 2540 lp.cellX = lp.tmpCellX = mTargetCell[0]; 2541 lp.cellY = lp.tmpCellY = mTargetCell[1]; 2542 lp.cellHSpan = item.spanX; 2543 lp.cellVSpan = item.spanY; 2544 lp.isLockedToGrid = true; 2545 cell.setId(LauncherModel.getCellLayoutChildId(container, mDragInfo.screenId, 2546 mTargetCell[0], mTargetCell[1], mDragInfo.spanX, mDragInfo.spanY)); 2547 2548 if (container != LauncherSettings.Favorites.CONTAINER_HOTSEAT && 2549 cell instanceof LauncherAppWidgetHostView) { 2550 final CellLayout cellLayout = dropTargetLayout; 2551 // We post this call so that the widget has a chance to be placed 2552 // in its final location 2553 2554 final LauncherAppWidgetHostView hostView = (LauncherAppWidgetHostView) cell; 2555 AppWidgetProviderInfo pinfo = hostView.getAppWidgetInfo(); 2556 if (pinfo != null && 2557 pinfo.resizeMode != AppWidgetProviderInfo.RESIZE_NONE) { 2558 final Runnable addResizeFrame = new Runnable() { 2559 public void run() { 2560 DragLayer dragLayer = mLauncher.getDragLayer(); 2561 dragLayer.addResizeFrame(info, hostView, cellLayout); 2562 } 2563 }; 2564 resizeRunnable = (new Runnable() { 2565 public void run() { 2566 if (!isPageMoving()) { 2567 addResizeFrame.run(); 2568 } else { 2569 mDelayedResizeRunnable = addResizeFrame; 2570 } 2571 } 2572 }); 2573 } 2574 } 2575 2576 LauncherModel.moveItemInDatabase(mLauncher, info, container, screenId, lp.cellX, 2577 lp.cellY); 2578 } else { 2579 // If we can't find a drop location, we return the item to its original position 2580 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) cell.getLayoutParams(); 2581 mTargetCell[0] = lp.cellX; 2582 mTargetCell[1] = lp.cellY; 2583 CellLayout layout = (CellLayout) cell.getParent().getParent(); 2584 layout.markCellsAsOccupiedForView(cell); 2585 } 2586 } 2587 2588 final CellLayout parent = (CellLayout) cell.getParent().getParent(); 2589 final Runnable finalResizeRunnable = resizeRunnable; 2590 // Prepare it to be animated into its new position 2591 // This must be called after the view has been re-parented 2592 final Runnable onCompleteRunnable = new Runnable() { 2593 @Override 2594 public void run() { 2595 mAnimatingViewIntoPlace = false; 2596 updateChildrenLayersEnabled(false); 2597 if (finalResizeRunnable != null) { 2598 finalResizeRunnable.run(); 2599 } 2600 stripEmptyScreens(); 2601 } 2602 }; 2603 mAnimatingViewIntoPlace = true; 2604 if (d.dragView.hasDrawn()) { 2605 final ItemInfo info = (ItemInfo) cell.getTag(); 2606 if (info.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET) { 2607 int animationType = resizeOnDrop ? ANIMATE_INTO_POSITION_AND_RESIZE : 2608 ANIMATE_INTO_POSITION_AND_DISAPPEAR; 2609 animateWidgetDrop(info, parent, d.dragView, 2610 onCompleteRunnable, animationType, cell, false); 2611 } else { 2612 int duration = snapScreen < 0 ? -1 : ADJACENT_SCREEN_DROP_DURATION; 2613 mLauncher.getDragLayer().animateViewIntoPosition(d.dragView, cell, duration, 2614 onCompleteRunnable, this); 2615 } 2616 } else { 2617 d.deferDragViewCleanupPostAnimation = false; 2618 cell.setVisibility(VISIBLE); 2619 } 2620 parent.onDropChild(cell); 2621 } 2622 } 2623 2624 public void setFinalScrollForPageChange(int pageIndex) { 2625 CellLayout cl = (CellLayout) getChildAt(pageIndex); 2626 if (cl != null) { 2627 mSavedScrollX = getScrollX(); 2628 mSavedTranslationX = cl.getTranslationX(); 2629 mSavedRotationY = cl.getRotationY(); 2630 final int newX = getScrollForPage(pageIndex); 2631 setScrollX(newX); 2632 cl.setTranslationX(0f); 2633 cl.setRotationY(0f); 2634 } 2635 } 2636 2637 public void resetFinalScrollForPageChange(int pageIndex) { 2638 if (pageIndex >= 0) { 2639 CellLayout cl = (CellLayout) getChildAt(pageIndex); 2640 setScrollX(mSavedScrollX); 2641 cl.setTranslationX(mSavedTranslationX); 2642 cl.setRotationY(mSavedRotationY); 2643 } 2644 } 2645 2646 public void getViewLocationRelativeToSelf(View v, int[] location) { 2647 getLocationInWindow(location); 2648 int x = location[0]; 2649 int y = location[1]; 2650 2651 v.getLocationInWindow(location); 2652 int vX = location[0]; 2653 int vY = location[1]; 2654 2655 location[0] = vX - x; 2656 location[1] = vY - y; 2657 } 2658 2659 public void onDragEnter(DragObject d) { 2660 mDragEnforcer.onDragEnter(); 2661 mCreateUserFolderOnDrop = false; 2662 mAddToExistingFolderOnDrop = false; 2663 2664 mDropToLayout = null; 2665 CellLayout layout = getCurrentDropLayout(); 2666 setCurrentDropLayout(layout); 2667 setCurrentDragOverlappingLayout(layout); 2668 2669 // Because we don't have space in the Phone UI (the CellLayouts run to the edge) we 2670 // don't need to show the outlines 2671 if (LauncherAppState.getInstance().isScreenLarge()) { 2672 showOutlines(); 2673 } 2674 } 2675 2676 static Rect getCellLayoutMetrics(Launcher launcher, int orientation) { 2677 LauncherAppState app = LauncherAppState.getInstance(); 2678 DeviceProfile grid = app.getDynamicGrid().getDeviceProfile(); 2679 2680 Resources res = launcher.getResources(); 2681 Display display = launcher.getWindowManager().getDefaultDisplay(); 2682 Point smallestSize = new Point(); 2683 Point largestSize = new Point(); 2684 display.getCurrentSizeRange(smallestSize, largestSize); 2685 int countX = (int) grid.numColumns; 2686 int countY = (int) grid.numRows; 2687 if (orientation == CellLayout.LANDSCAPE) { 2688 if (mLandscapeCellLayoutMetrics == null) { 2689 Rect padding = grid.getWorkspacePadding(CellLayout.LANDSCAPE); 2690 int width = largestSize.x - padding.left - padding.right; 2691 int height = smallestSize.y - padding.top - padding.bottom; 2692 mLandscapeCellLayoutMetrics = new Rect(); 2693 CellLayout.getMetrics(mLandscapeCellLayoutMetrics, width, height, 2694 countX, countY); 2695 } 2696 return mLandscapeCellLayoutMetrics; 2697 } else if (orientation == CellLayout.PORTRAIT) { 2698 if (mPortraitCellLayoutMetrics == null) { 2699 Rect padding = grid.getWorkspacePadding(CellLayout.PORTRAIT); 2700 int width = smallestSize.x - padding.left - padding.right; 2701 int height = largestSize.y - padding.top - padding.bottom; 2702 mPortraitCellLayoutMetrics = new Rect(); 2703 CellLayout.getMetrics(mPortraitCellLayoutMetrics, width, height, 2704 countX, countY); 2705 } 2706 return mPortraitCellLayoutMetrics; 2707 } 2708 return null; 2709 } 2710 2711 public void onDragExit(DragObject d) { 2712 mDragEnforcer.onDragExit(); 2713 2714 // Here we store the final page that will be dropped to, if the workspace in fact 2715 // receives the drop 2716 if (mInScrollArea) { 2717 if (isPageMoving()) { 2718 // If the user drops while the page is scrolling, we should use that page as the 2719 // destination instead of the page that is being hovered over. 2720 mDropToLayout = (CellLayout) getPageAt(getNextPage()); 2721 } else { 2722 mDropToLayout = mDragOverlappingLayout; 2723 } 2724 } else { 2725 mDropToLayout = mDragTargetLayout; 2726 } 2727 2728 if (mDragMode == DRAG_MODE_CREATE_FOLDER) { 2729 mCreateUserFolderOnDrop = true; 2730 } else if (mDragMode == DRAG_MODE_ADD_TO_FOLDER) { 2731 mAddToExistingFolderOnDrop = true; 2732 } 2733 2734 // Reset the scroll area and previous drag target 2735 onResetScrollArea(); 2736 setCurrentDropLayout(null); 2737 setCurrentDragOverlappingLayout(null); 2738 2739 mSpringLoadedDragController.cancel(); 2740 2741 if (!mIsPageMoving) { 2742 hideOutlines(); 2743 } 2744 } 2745 2746 void setCurrentDropLayout(CellLayout layout) { 2747 if (mDragTargetLayout != null) { 2748 mDragTargetLayout.revertTempState(); 2749 mDragTargetLayout.onDragExit(); 2750 } 2751 mDragTargetLayout = layout; 2752 if (mDragTargetLayout != null) { 2753 mDragTargetLayout.onDragEnter(); 2754 } 2755 cleanupReorder(true); 2756 cleanupFolderCreation(); 2757 setCurrentDropOverCell(-1, -1); 2758 } 2759 2760 void setCurrentDragOverlappingLayout(CellLayout layout) { 2761 if (mDragOverlappingLayout != null) { 2762 mDragOverlappingLayout.setIsDragOverlapping(false); 2763 } 2764 mDragOverlappingLayout = layout; 2765 if (mDragOverlappingLayout != null) { 2766 mDragOverlappingLayout.setIsDragOverlapping(true); 2767 } 2768 invalidate(); 2769 } 2770 2771 void setCurrentDropOverCell(int x, int y) { 2772 if (x != mDragOverX || y != mDragOverY) { 2773 mDragOverX = x; 2774 mDragOverY = y; 2775 setDragMode(DRAG_MODE_NONE); 2776 } 2777 } 2778 2779 void setDragMode(int dragMode) { 2780 if (dragMode != mDragMode) { 2781 if (dragMode == DRAG_MODE_NONE) { 2782 cleanupAddToFolder(); 2783 // We don't want to cancel the re-order alarm every time the target cell changes 2784 // as this feels to slow / unresponsive. 2785 cleanupReorder(false); 2786 cleanupFolderCreation(); 2787 } else if (dragMode == DRAG_MODE_ADD_TO_FOLDER) { 2788 cleanupReorder(true); 2789 cleanupFolderCreation(); 2790 } else if (dragMode == DRAG_MODE_CREATE_FOLDER) { 2791 cleanupAddToFolder(); 2792 cleanupReorder(true); 2793 } else if (dragMode == DRAG_MODE_REORDER) { 2794 cleanupAddToFolder(); 2795 cleanupFolderCreation(); 2796 } 2797 mDragMode = dragMode; 2798 } 2799 } 2800 2801 private void cleanupFolderCreation() { 2802 if (mDragFolderRingAnimator != null) { 2803 mDragFolderRingAnimator.animateToNaturalState(); 2804 } 2805 mFolderCreationAlarm.cancelAlarm(); 2806 } 2807 2808 private void cleanupAddToFolder() { 2809 if (mDragOverFolderIcon != null) { 2810 mDragOverFolderIcon.onDragExit(null); 2811 mDragOverFolderIcon = null; 2812 } 2813 } 2814 2815 private void cleanupReorder(boolean cancelAlarm) { 2816 // Any pending reorders are canceled 2817 if (cancelAlarm) { 2818 mReorderAlarm.cancelAlarm(); 2819 } 2820 mLastReorderX = -1; 2821 mLastReorderY = -1; 2822 } 2823 2824 /* 2825 * 2826 * Convert the 2D coordinate xy from the parent View's coordinate space to this CellLayout's 2827 * coordinate space. The argument xy is modified with the return result. 2828 * 2829 * if cachedInverseMatrix is not null, this method will just use that matrix instead of 2830 * computing it itself; we use this to avoid redundant matrix inversions in 2831 * findMatchingPageForDragOver 2832 * 2833 */ 2834 void mapPointFromSelfToChild(View v, float[] xy, Matrix cachedInverseMatrix) { 2835 xy[0] = xy[0] - v.getLeft(); 2836 xy[1] = xy[1] - v.getTop(); 2837 } 2838 2839 boolean isPointInSelfOverHotseat(int x, int y, Rect r) { 2840 if (r == null) { 2841 r = new Rect(); 2842 } 2843 mTempPt[0] = x; 2844 mTempPt[1] = y; 2845 mLauncher.getDragLayer().getDescendantCoordRelativeToSelf(this, mTempPt, true); 2846 mLauncher.getHotseat().getHitRect(r); 2847 if (r.contains(mTempPt[0], mTempPt[1])) { 2848 return true; 2849 } 2850 return false; 2851 } 2852 2853 void mapPointFromSelfToHotseatLayout(Hotseat hotseat, float[] xy) { 2854 mTempPt[0] = (int) xy[0]; 2855 mTempPt[1] = (int) xy[1]; 2856 mLauncher.getDragLayer().getDescendantCoordRelativeToSelf(this, mTempPt, true); 2857 mLauncher.getDragLayer().mapCoordInSelfToDescendent(hotseat.getLayout(), mTempPt); 2858 2859 xy[0] = mTempPt[0]; 2860 xy[1] = mTempPt[1]; 2861 } 2862 2863 /* 2864 * 2865 * Convert the 2D coordinate xy from this CellLayout's coordinate space to 2866 * the parent View's coordinate space. The argument xy is modified with the return result. 2867 * 2868 */ 2869 void mapPointFromChildToSelf(View v, float[] xy) { 2870 xy[0] += v.getLeft(); 2871 xy[1] += v.getTop(); 2872 } 2873 2874 static private float squaredDistance(float[] point1, float[] point2) { 2875 float distanceX = point1[0] - point2[0]; 2876 float distanceY = point2[1] - point2[1]; 2877 return distanceX * distanceX + distanceY * distanceY; 2878 } 2879 2880 /* 2881 * 2882 * This method returns the CellLayout that is currently being dragged to. In order to drag 2883 * to a CellLayout, either the touch point must be directly over the CellLayout, or as a second 2884 * strategy, we see if the dragView is overlapping any CellLayout and choose the closest one 2885 * 2886 * Return null if no CellLayout is currently being dragged over 2887 * 2888 */ 2889 private CellLayout findMatchingPageForDragOver( 2890 DragView dragView, float originX, float originY, boolean exact) { 2891 // We loop through all the screens (ie CellLayouts) and see which ones overlap 2892 // with the item being dragged and then choose the one that's closest to the touch point 2893 final int screenCount = getChildCount(); 2894 CellLayout bestMatchingScreen = null; 2895 float smallestDistSoFar = Float.MAX_VALUE; 2896 2897 for (int i = 0; i < screenCount; i++) { 2898 CellLayout cl = (CellLayout) getChildAt(i); 2899 2900 final float[] touchXy = {originX, originY}; 2901 // Transform the touch coordinates to the CellLayout's local coordinates 2902 // If the touch point is within the bounds of the cell layout, we can return immediately 2903 cl.getMatrix().invert(mTempInverseMatrix); 2904 mapPointFromSelfToChild(cl, touchXy, mTempInverseMatrix); 2905 2906 if (touchXy[0] >= 0 && touchXy[0] <= cl.getWidth() && 2907 touchXy[1] >= 0 && touchXy[1] <= cl.getHeight()) { 2908 return cl; 2909 } 2910 2911 if (!exact) { 2912 // Get the center of the cell layout in screen coordinates 2913 final float[] cellLayoutCenter = mTempCellLayoutCenterCoordinates; 2914 cellLayoutCenter[0] = cl.getWidth()/2; 2915 cellLayoutCenter[1] = cl.getHeight()/2; 2916 mapPointFromChildToSelf(cl, cellLayoutCenter); 2917 2918 touchXy[0] = originX; 2919 touchXy[1] = originY; 2920 2921 // Calculate the distance between the center of the CellLayout 2922 // and the touch point 2923 float dist = squaredDistance(touchXy, cellLayoutCenter); 2924 2925 if (dist < smallestDistSoFar) { 2926 smallestDistSoFar = dist; 2927 bestMatchingScreen = cl; 2928 } 2929 } 2930 } 2931 return bestMatchingScreen; 2932 } 2933 2934 // This is used to compute the visual center of the dragView. This point is then 2935 // used to visualize drop locations and determine where to drop an item. The idea is that 2936 // the visual center represents the user's interpretation of where the item is, and hence 2937 // is the appropriate point to use when determining drop location. 2938 private float[] getDragViewVisualCenter(int x, int y, int xOffset, int yOffset, 2939 DragView dragView, float[] recycle) { 2940 float res[]; 2941 if (recycle == null) { 2942 res = new float[2]; 2943 } else { 2944 res = recycle; 2945 } 2946 2947 // First off, the drag view has been shifted in a way that is not represented in the 2948 // x and y values or the x/yOffsets. Here we account for that shift. 2949 x += getResources().getDimensionPixelSize(R.dimen.dragViewOffsetX); 2950 y += getResources().getDimensionPixelSize(R.dimen.dragViewOffsetY); 2951 2952 // These represent the visual top and left of drag view if a dragRect was provided. 2953 // If a dragRect was not provided, then they correspond to the actual view left and 2954 // top, as the dragRect is in that case taken to be the entire dragView. 2955 // R.dimen.dragViewOffsetY. 2956 int left = x - xOffset; 2957 int top = y - yOffset; 2958 2959 // In order to find the visual center, we shift by half the dragRect 2960 res[0] = left + dragView.getDragRegion().width() / 2; 2961 res[1] = top + dragView.getDragRegion().height() / 2; 2962 2963 return res; 2964 } 2965 2966 private boolean isDragWidget(DragObject d) { 2967 return (d.dragInfo instanceof LauncherAppWidgetInfo || 2968 d.dragInfo instanceof PendingAddWidgetInfo); 2969 } 2970 private boolean isExternalDragWidget(DragObject d) { 2971 return d.dragSource != this && isDragWidget(d); 2972 } 2973 2974 public void onDragOver(DragObject d) { 2975 // Skip drag over events while we are dragging over side pages 2976 if (mInScrollArea || mIsSwitchingState || mState == State.SMALL) return; 2977 2978 Rect r = new Rect(); 2979 CellLayout layout = null; 2980 ItemInfo item = (ItemInfo) d.dragInfo; 2981 2982 // Ensure that we have proper spans for the item that we are dropping 2983 if (item.spanX < 0 || item.spanY < 0) throw new RuntimeException("Improper spans found"); 2984 mDragViewVisualCenter = getDragViewVisualCenter(d.x, d.y, d.xOffset, d.yOffset, 2985 d.dragView, mDragViewVisualCenter); 2986 2987 final View child = (mDragInfo == null) ? null : mDragInfo.cell; 2988 // Identify whether we have dragged over a side page 2989 if (isSmall()) { 2990 if (mLauncher.getHotseat() != null && !isExternalDragWidget(d)) { 2991 if (isPointInSelfOverHotseat(d.x, d.y, r)) { 2992 layout = mLauncher.getHotseat().getLayout(); 2993 } 2994 } 2995 if (layout == null) { 2996 layout = findMatchingPageForDragOver(d.dragView, d.x, d.y, false); 2997 } 2998 if (layout != mDragTargetLayout) { 2999 setCurrentDropLayout(layout); 3000 setCurrentDragOverlappingLayout(layout); 3001 3002 boolean isInSpringLoadedMode = (mState == State.SPRING_LOADED); 3003 if (isInSpringLoadedMode) { 3004 if (mLauncher.isHotseatLayout(layout)) { 3005 mSpringLoadedDragController.cancel(); 3006 } else { 3007 mSpringLoadedDragController.setAlarm(mDragTargetLayout); 3008 } 3009 } 3010 } 3011 } else { 3012 // Test to see if we are over the hotseat otherwise just use the current page 3013 if (mLauncher.getHotseat() != null && !isDragWidget(d)) { 3014 if (isPointInSelfOverHotseat(d.x, d.y, r)) { 3015 layout = mLauncher.getHotseat().getLayout(); 3016 } 3017 } 3018 if (layout == null) { 3019 layout = getCurrentDropLayout(); 3020 } 3021 if (layout != mDragTargetLayout) { 3022 setCurrentDropLayout(layout); 3023 setCurrentDragOverlappingLayout(layout); 3024 } 3025 } 3026 3027 // Handle the drag over 3028 if (mDragTargetLayout != null) { 3029 // We want the point to be mapped to the dragTarget. 3030 if (mLauncher.isHotseatLayout(mDragTargetLayout)) { 3031 mapPointFromSelfToHotseatLayout(mLauncher.getHotseat(), mDragViewVisualCenter); 3032 } else { 3033 mapPointFromSelfToChild(mDragTargetLayout, mDragViewVisualCenter, null); 3034 } 3035 3036 ItemInfo info = (ItemInfo) d.dragInfo; 3037 3038 mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], 3039 (int) mDragViewVisualCenter[1], item.spanX, item.spanY, 3040 mDragTargetLayout, mTargetCell); 3041 3042 setCurrentDropOverCell(mTargetCell[0], mTargetCell[1]); 3043 3044 float targetCellDistance = mDragTargetLayout.getDistanceFromCell( 3045 mDragViewVisualCenter[0], mDragViewVisualCenter[1], mTargetCell); 3046 3047 final View dragOverView = mDragTargetLayout.getChildAt(mTargetCell[0], 3048 mTargetCell[1]); 3049 3050 manageFolderFeedback(info, mDragTargetLayout, mTargetCell, 3051 targetCellDistance, dragOverView); 3052 3053 int minSpanX = item.spanX; 3054 int minSpanY = item.spanY; 3055 if (item.minSpanX > 0 && item.minSpanY > 0) { 3056 minSpanX = item.minSpanX; 3057 minSpanY = item.minSpanY; 3058 } 3059 3060 boolean nearestDropOccupied = mDragTargetLayout.isNearestDropLocationOccupied((int) 3061 mDragViewVisualCenter[0], (int) mDragViewVisualCenter[1], item.spanX, 3062 item.spanY, child, mTargetCell); 3063 3064 if (!nearestDropOccupied) { 3065 mDragTargetLayout.visualizeDropLocation(child, mDragOutline, 3066 (int) mDragViewVisualCenter[0], (int) mDragViewVisualCenter[1], 3067 mTargetCell[0], mTargetCell[1], item.spanX, item.spanY, false, 3068 d.dragView.getDragVisualizeOffset(), d.dragView.getDragRegion()); 3069 } else if ((mDragMode == DRAG_MODE_NONE || mDragMode == DRAG_MODE_REORDER) 3070 && !mReorderAlarm.alarmPending() && (mLastReorderX != mTargetCell[0] || 3071 mLastReorderY != mTargetCell[1])) { 3072 3073 // Otherwise, if we aren't adding to or creating a folder and there's no pending 3074 // reorder, then we schedule a reorder 3075 ReorderAlarmListener listener = new ReorderAlarmListener(mDragViewVisualCenter, 3076 minSpanX, minSpanY, item.spanX, item.spanY, d.dragView, child); 3077 mReorderAlarm.setOnAlarmListener(listener); 3078 mReorderAlarm.setAlarm(REORDER_TIMEOUT); 3079 } 3080 3081 if (mDragMode == DRAG_MODE_CREATE_FOLDER || mDragMode == DRAG_MODE_ADD_TO_FOLDER || 3082 !nearestDropOccupied) { 3083 if (mDragTargetLayout != null) { 3084 mDragTargetLayout.revertTempState(); 3085 } 3086 } 3087 } 3088 } 3089 3090 private void manageFolderFeedback(ItemInfo info, CellLayout targetLayout, 3091 int[] targetCell, float distance, View dragOverView) { 3092 boolean userFolderPending = willCreateUserFolder(info, targetLayout, targetCell, distance, 3093 false); 3094 3095 if (mDragMode == DRAG_MODE_NONE && userFolderPending && 3096 !mFolderCreationAlarm.alarmPending()) { 3097 mFolderCreationAlarm.setOnAlarmListener(new 3098 FolderCreationAlarmListener(targetLayout, targetCell[0], targetCell[1])); 3099 mFolderCreationAlarm.setAlarm(FOLDER_CREATION_TIMEOUT); 3100 return; 3101 } 3102 3103 boolean willAddToFolder = 3104 willAddToExistingUserFolder(info, targetLayout, targetCell, distance); 3105 3106 if (willAddToFolder && mDragMode == DRAG_MODE_NONE) { 3107 mDragOverFolderIcon = ((FolderIcon) dragOverView); 3108 mDragOverFolderIcon.onDragEnter(info); 3109 if (targetLayout != null) { 3110 targetLayout.clearDragOutlines(); 3111 } 3112 setDragMode(DRAG_MODE_ADD_TO_FOLDER); 3113 return; 3114 } 3115 3116 if (mDragMode == DRAG_MODE_ADD_TO_FOLDER && !willAddToFolder) { 3117 setDragMode(DRAG_MODE_NONE); 3118 } 3119 if (mDragMode == DRAG_MODE_CREATE_FOLDER && !userFolderPending) { 3120 setDragMode(DRAG_MODE_NONE); 3121 } 3122 3123 return; 3124 } 3125 3126 class FolderCreationAlarmListener implements OnAlarmListener { 3127 CellLayout layout; 3128 int cellX; 3129 int cellY; 3130 3131 public FolderCreationAlarmListener(CellLayout layout, int cellX, int cellY) { 3132 this.layout = layout; 3133 this.cellX = cellX; 3134 this.cellY = cellY; 3135 } 3136 3137 public void onAlarm(Alarm alarm) { 3138 if (mDragFolderRingAnimator == null) { 3139 mDragFolderRingAnimator = new FolderRingAnimator(mLauncher, null); 3140 } 3141 mDragFolderRingAnimator.setCell(cellX, cellY); 3142 mDragFolderRingAnimator.setCellLayout(layout); 3143 mDragFolderRingAnimator.animateToAcceptState(); 3144 layout.showFolderAccept(mDragFolderRingAnimator); 3145 layout.clearDragOutlines(); 3146 setDragMode(DRAG_MODE_CREATE_FOLDER); 3147 } 3148 } 3149 3150 class ReorderAlarmListener implements OnAlarmListener { 3151 float[] dragViewCenter; 3152 int minSpanX, minSpanY, spanX, spanY; 3153 DragView dragView; 3154 View child; 3155 3156 public ReorderAlarmListener(float[] dragViewCenter, int minSpanX, int minSpanY, int spanX, 3157 int spanY, DragView dragView, View child) { 3158 this.dragViewCenter = dragViewCenter; 3159 this.minSpanX = minSpanX; 3160 this.minSpanY = minSpanY; 3161 this.spanX = spanX; 3162 this.spanY = spanY; 3163 this.child = child; 3164 this.dragView = dragView; 3165 } 3166 3167 public void onAlarm(Alarm alarm) { 3168 int[] resultSpan = new int[2]; 3169 mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], 3170 (int) mDragViewVisualCenter[1], spanX, spanY, mDragTargetLayout, mTargetCell); 3171 mLastReorderX = mTargetCell[0]; 3172 mLastReorderY = mTargetCell[1]; 3173 3174 mTargetCell = mDragTargetLayout.createArea((int) mDragViewVisualCenter[0], 3175 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, spanX, spanY, 3176 child, mTargetCell, resultSpan, CellLayout.MODE_DRAG_OVER); 3177 3178 if (mTargetCell[0] < 0 || mTargetCell[1] < 0) { 3179 mDragTargetLayout.revertTempState(); 3180 } else { 3181 setDragMode(DRAG_MODE_REORDER); 3182 } 3183 3184 boolean resize = resultSpan[0] != spanX || resultSpan[1] != spanY; 3185 mDragTargetLayout.visualizeDropLocation(child, mDragOutline, 3186 (int) mDragViewVisualCenter[0], (int) mDragViewVisualCenter[1], 3187 mTargetCell[0], mTargetCell[1], resultSpan[0], resultSpan[1], resize, 3188 dragView.getDragVisualizeOffset(), dragView.getDragRegion()); 3189 } 3190 } 3191 3192 @Override 3193 public void getHitRectRelativeToDragLayer(Rect outRect) { 3194 // We want the workspace to have the whole area of the display (it will find the correct 3195 // cell layout to drop to in the existing drag/drop logic. 3196 mLauncher.getDragLayer().getDescendantRectRelativeToSelf(this, outRect); 3197 } 3198 3199 /** 3200 * Add the item specified by dragInfo to the given layout. 3201 * @return true if successful 3202 */ 3203 public boolean addExternalItemToScreen(ItemInfo dragInfo, CellLayout layout) { 3204 if (layout.findCellForSpan(mTempEstimate, dragInfo.spanX, dragInfo.spanY)) { 3205 onDropExternal(dragInfo.dropPos, (ItemInfo) dragInfo, (CellLayout) layout, false); 3206 return true; 3207 } 3208 mLauncher.showOutOfSpaceMessage(mLauncher.isHotseatLayout(layout)); 3209 return false; 3210 } 3211 3212 private void onDropExternal(int[] touchXY, Object dragInfo, 3213 CellLayout cellLayout, boolean insertAtFirst) { 3214 onDropExternal(touchXY, dragInfo, cellLayout, insertAtFirst, null); 3215 } 3216 3217 /** 3218 * Drop an item that didn't originate on one of the workspace screens. 3219 * It may have come from Launcher (e.g. from all apps or customize), or it may have 3220 * come from another app altogether. 3221 * 3222 * NOTE: This can also be called when we are outside of a drag event, when we want 3223 * to add an item to one of the workspace screens. 3224 */ 3225 private void onDropExternal(final int[] touchXY, final Object dragInfo, 3226 final CellLayout cellLayout, boolean insertAtFirst, DragObject d) { 3227 final Runnable exitSpringLoadedRunnable = new Runnable() { 3228 @Override 3229 public void run() { 3230 mLauncher.exitSpringLoadedDragModeDelayed(true, false, null); 3231 } 3232 }; 3233 3234 ItemInfo info = (ItemInfo) dragInfo; 3235 int spanX = info.spanX; 3236 int spanY = info.spanY; 3237 if (mDragInfo != null) { 3238 spanX = mDragInfo.spanX; 3239 spanY = mDragInfo.spanY; 3240 } 3241 3242 final long container = mLauncher.isHotseatLayout(cellLayout) ? 3243 LauncherSettings.Favorites.CONTAINER_HOTSEAT : 3244 LauncherSettings.Favorites.CONTAINER_DESKTOP; 3245 final long screenId = getIdForScreen(cellLayout); 3246 if (!mLauncher.isHotseatLayout(cellLayout) 3247 && screenId != getScreenIdForPageIndex(mCurrentPage) 3248 && mState != State.SPRING_LOADED) { 3249 snapToScreenId(screenId, null); 3250 } 3251 3252 if (info instanceof PendingAddItemInfo) { 3253 final PendingAddItemInfo pendingInfo = (PendingAddItemInfo) dragInfo; 3254 3255 boolean findNearestVacantCell = true; 3256 if (pendingInfo.itemType == LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT) { 3257 mTargetCell = findNearestArea((int) touchXY[0], (int) touchXY[1], spanX, spanY, 3258 cellLayout, mTargetCell); 3259 float distance = cellLayout.getDistanceFromCell(mDragViewVisualCenter[0], 3260 mDragViewVisualCenter[1], mTargetCell); 3261 if (willCreateUserFolder((ItemInfo) d.dragInfo, cellLayout, mTargetCell, 3262 distance, true) || willAddToExistingUserFolder((ItemInfo) d.dragInfo, 3263 cellLayout, mTargetCell, distance)) { 3264 findNearestVacantCell = false; 3265 } 3266 } 3267 3268 final ItemInfo item = (ItemInfo) d.dragInfo; 3269 boolean updateWidgetSize = false; 3270 if (findNearestVacantCell) { 3271 int minSpanX = item.spanX; 3272 int minSpanY = item.spanY; 3273 if (item.minSpanX > 0 && item.minSpanY > 0) { 3274 minSpanX = item.minSpanX; 3275 minSpanY = item.minSpanY; 3276 } 3277 int[] resultSpan = new int[2]; 3278 mTargetCell = cellLayout.createArea((int) mDragViewVisualCenter[0], 3279 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, info.spanX, info.spanY, 3280 null, mTargetCell, resultSpan, CellLayout.MODE_ON_DROP_EXTERNAL); 3281 3282 if (resultSpan[0] != item.spanX || resultSpan[1] != item.spanY) { 3283 updateWidgetSize = true; 3284 } 3285 item.spanX = resultSpan[0]; 3286 item.spanY = resultSpan[1]; 3287 } 3288 3289 Runnable onAnimationCompleteRunnable = new Runnable() { 3290 @Override 3291 public void run() { 3292 // When dragging and dropping from customization tray, we deal with creating 3293 // widgets/shortcuts/folders in a slightly different way 3294 switch (pendingInfo.itemType) { 3295 case LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET: 3296 int span[] = new int[2]; 3297 span[0] = item.spanX; 3298 span[1] = item.spanY; 3299 mLauncher.addAppWidgetFromDrop((PendingAddWidgetInfo) pendingInfo, 3300 container, screenId, mTargetCell, span, null); 3301 break; 3302 case LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT: 3303 mLauncher.processShortcutFromDrop(pendingInfo.componentName, 3304 container, screenId, mTargetCell, null); 3305 break; 3306 default: 3307 throw new IllegalStateException("Unknown item type: " + 3308 pendingInfo.itemType); 3309 } 3310 } 3311 }; 3312 View finalView = pendingInfo.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET 3313 ? ((PendingAddWidgetInfo) pendingInfo).boundWidget : null; 3314 3315 if (finalView instanceof AppWidgetHostView && updateWidgetSize) { 3316 AppWidgetHostView awhv = (AppWidgetHostView) finalView; 3317 AppWidgetResizeFrame.updateWidgetSizeRanges(awhv, mLauncher, item.spanX, 3318 item.spanY); 3319 } 3320 3321 int animationStyle = ANIMATE_INTO_POSITION_AND_DISAPPEAR; 3322 if (pendingInfo.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET && 3323 ((PendingAddWidgetInfo) pendingInfo).info.configure != null) { 3324 animationStyle = ANIMATE_INTO_POSITION_AND_REMAIN; 3325 } 3326 animateWidgetDrop(info, cellLayout, d.dragView, onAnimationCompleteRunnable, 3327 animationStyle, finalView, true); 3328 } else { 3329 // This is for other drag/drop cases, like dragging from All Apps 3330 View view = null; 3331 3332 switch (info.itemType) { 3333 case LauncherSettings.Favorites.ITEM_TYPE_APPLICATION: 3334 case LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT: 3335 if (info.container == NO_ID && info instanceof AppInfo) { 3336 // Came from all apps -- make a copy 3337 info = new ShortcutInfo((AppInfo) info); 3338 } 3339 view = mLauncher.createShortcut(R.layout.application, cellLayout, 3340 (ShortcutInfo) info); 3341 break; 3342 case LauncherSettings.Favorites.ITEM_TYPE_FOLDER: 3343 view = FolderIcon.fromXml(R.layout.folder_icon, mLauncher, cellLayout, 3344 (FolderInfo) info, mIconCache); 3345 break; 3346 default: 3347 throw new IllegalStateException("Unknown item type: " + info.itemType); 3348 } 3349 3350 // First we find the cell nearest to point at which the item is 3351 // dropped, without any consideration to whether there is an item there. 3352 if (touchXY != null) { 3353 mTargetCell = findNearestArea((int) touchXY[0], (int) touchXY[1], spanX, spanY, 3354 cellLayout, mTargetCell); 3355 float distance = cellLayout.getDistanceFromCell(mDragViewVisualCenter[0], 3356 mDragViewVisualCenter[1], mTargetCell); 3357 d.postAnimationRunnable = exitSpringLoadedRunnable; 3358 if (createUserFolderIfNecessary(view, container, cellLayout, mTargetCell, distance, 3359 true, d.dragView, d.postAnimationRunnable)) { 3360 return; 3361 } 3362 if (addToExistingFolderIfNecessary(view, cellLayout, mTargetCell, distance, d, 3363 true)) { 3364 return; 3365 } 3366 } 3367 3368 if (touchXY != null) { 3369 // when dragging and dropping, just find the closest free spot 3370 mTargetCell = cellLayout.createArea((int) mDragViewVisualCenter[0], 3371 (int) mDragViewVisualCenter[1], 1, 1, 1, 1, 3372 null, mTargetCell, null, CellLayout.MODE_ON_DROP_EXTERNAL); 3373 } else { 3374 cellLayout.findCellForSpan(mTargetCell, 1, 1); 3375 } 3376 addInScreen(view, container, screenId, mTargetCell[0], mTargetCell[1], info.spanX, 3377 info.spanY, insertAtFirst); 3378 cellLayout.onDropChild(view); 3379 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) view.getLayoutParams(); 3380 cellLayout.getShortcutsAndWidgets().measureChild(view); 3381 3382 LauncherModel.addOrMoveItemInDatabase(mLauncher, info, container, screenId, 3383 lp.cellX, lp.cellY); 3384 3385 if (d.dragView != null) { 3386 // We wrap the animation call in the temporary set and reset of the current 3387 // cellLayout to its final transform -- this means we animate the drag view to 3388 // the correct final location. 3389 setFinalTransitionTransform(cellLayout); 3390 mLauncher.getDragLayer().animateViewIntoPosition(d.dragView, view, 3391 exitSpringLoadedRunnable); 3392 resetTransitionTransform(cellLayout); 3393 } 3394 } 3395 } 3396 3397 public Bitmap createWidgetBitmap(ItemInfo widgetInfo, View layout) { 3398 int[] unScaledSize = mLauncher.getWorkspace().estimateItemSize(widgetInfo.spanX, 3399 widgetInfo.spanY, widgetInfo, false); 3400 int visibility = layout.getVisibility(); 3401 layout.setVisibility(VISIBLE); 3402 3403 int width = MeasureSpec.makeMeasureSpec(unScaledSize[0], MeasureSpec.EXACTLY); 3404 int height = MeasureSpec.makeMeasureSpec(unScaledSize[1], MeasureSpec.EXACTLY); 3405 Bitmap b = Bitmap.createBitmap(unScaledSize[0], unScaledSize[1], 3406 Bitmap.Config.ARGB_8888); 3407 Canvas c = new Canvas(b); 3408 3409 layout.measure(width, height); 3410 layout.layout(0, 0, unScaledSize[0], unScaledSize[1]); 3411 layout.draw(c); 3412 c.setBitmap(null); 3413 layout.setVisibility(visibility); 3414 return b; 3415 } 3416 3417 private void getFinalPositionForDropAnimation(int[] loc, float[] scaleXY, 3418 DragView dragView, CellLayout layout, ItemInfo info, int[] targetCell, 3419 boolean external, boolean scale) { 3420 // Now we animate the dragView, (ie. the widget or shortcut preview) into its final 3421 // location and size on the home screen. 3422 int spanX = info.spanX; 3423 int spanY = info.spanY; 3424 3425 Rect r = estimateItemPosition(layout, info, targetCell[0], targetCell[1], spanX, spanY); 3426 loc[0] = r.left; 3427 loc[1] = r.top; 3428 3429 setFinalTransitionTransform(layout); 3430 float cellLayoutScale = 3431 mLauncher.getDragLayer().getDescendantCoordRelativeToSelf(layout, loc, true); 3432 resetTransitionTransform(layout); 3433 3434 float dragViewScaleX; 3435 float dragViewScaleY; 3436 if (scale) { 3437 dragViewScaleX = (1.0f * r.width()) / dragView.getMeasuredWidth(); 3438 dragViewScaleY = (1.0f * r.height()) / dragView.getMeasuredHeight(); 3439 } else { 3440 dragViewScaleX = 1f; 3441 dragViewScaleY = 1f; 3442 } 3443 3444 // The animation will scale the dragView about its center, so we need to center about 3445 // the final location. 3446 loc[0] -= (dragView.getMeasuredWidth() - cellLayoutScale * r.width()) / 2; 3447 loc[1] -= (dragView.getMeasuredHeight() - cellLayoutScale * r.height()) / 2; 3448 3449 scaleXY[0] = dragViewScaleX * cellLayoutScale; 3450 scaleXY[1] = dragViewScaleY * cellLayoutScale; 3451 } 3452 3453 public void animateWidgetDrop(ItemInfo info, CellLayout cellLayout, DragView dragView, 3454 final Runnable onCompleteRunnable, int animationType, final View finalView, 3455 boolean external) { 3456 Rect from = new Rect(); 3457 mLauncher.getDragLayer().getViewRectRelativeToSelf(dragView, from); 3458 3459 int[] finalPos = new int[2]; 3460 float scaleXY[] = new float[2]; 3461 boolean scalePreview = !(info instanceof PendingAddShortcutInfo); 3462 getFinalPositionForDropAnimation(finalPos, scaleXY, dragView, cellLayout, info, mTargetCell, 3463 external, scalePreview); 3464 3465 Resources res = mLauncher.getResources(); 3466 int duration = res.getInteger(R.integer.config_dropAnimMaxDuration) - 200; 3467 3468 // In the case where we've prebound the widget, we remove it from the DragLayer 3469 if (finalView instanceof AppWidgetHostView && external) { 3470 Log.d(TAG, "6557954 Animate widget drop, final view is appWidgetHostView"); 3471 mLauncher.getDragLayer().removeView(finalView); 3472 } 3473 if ((animationType == ANIMATE_INTO_POSITION_AND_RESIZE || external) && finalView != null) { 3474 Bitmap crossFadeBitmap = createWidgetBitmap(info, finalView); 3475 dragView.setCrossFadeBitmap(crossFadeBitmap); 3476 dragView.crossFade((int) (duration * 0.8f)); 3477 } else if (info.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET && external) { 3478 scaleXY[0] = scaleXY[1] = Math.min(scaleXY[0], scaleXY[1]); 3479 } 3480 3481 DragLayer dragLayer = mLauncher.getDragLayer(); 3482 if (animationType == CANCEL_TWO_STAGE_WIDGET_DROP_ANIMATION) { 3483 mLauncher.getDragLayer().animateViewIntoPosition(dragView, finalPos, 0f, 0.1f, 0.1f, 3484 DragLayer.ANIMATION_END_DISAPPEAR, onCompleteRunnable, duration); 3485 } else { 3486 int endStyle; 3487 if (animationType == ANIMATE_INTO_POSITION_AND_REMAIN) { 3488 endStyle = DragLayer.ANIMATION_END_REMAIN_VISIBLE; 3489 } else { 3490 endStyle = DragLayer.ANIMATION_END_DISAPPEAR;; 3491 } 3492 3493 Runnable onComplete = new Runnable() { 3494 @Override 3495 public void run() { 3496 if (finalView != null) { 3497 finalView.setVisibility(VISIBLE); 3498 } 3499 if (onCompleteRunnable != null) { 3500 onCompleteRunnable.run(); 3501 } 3502 } 3503 }; 3504 dragLayer.animateViewIntoPosition(dragView, from.left, from.top, finalPos[0], 3505 finalPos[1], 1, 1, 1, scaleXY[0], scaleXY[1], onComplete, endStyle, 3506 duration, this); 3507 } 3508 } 3509 3510 public void setFinalTransitionTransform(CellLayout layout) { 3511 if (isSwitchingState()) { 3512 mCurrentScale = getScaleX(); 3513 setScaleX(mNewScale); 3514 setScaleY(mNewScale); 3515 } 3516 } 3517 public void resetTransitionTransform(CellLayout layout) { 3518 if (isSwitchingState()) { 3519 setScaleX(mCurrentScale); 3520 setScaleY(mCurrentScale); 3521 } 3522 } 3523 3524 /** 3525 * Return the current {@link CellLayout}, correctly picking the destination 3526 * screen while a scroll is in progress. 3527 */ 3528 public CellLayout getCurrentDropLayout() { 3529 return (CellLayout) getChildAt(getNextPage()); 3530 } 3531 3532 /** 3533 * Return the current CellInfo describing our current drag; this method exists 3534 * so that Launcher can sync this object with the correct info when the activity is created/ 3535 * destroyed 3536 * 3537 */ 3538 public CellLayout.CellInfo getDragInfo() { 3539 return mDragInfo; 3540 } 3541 3542 /** 3543 * Calculate the nearest cell where the given object would be dropped. 3544 * 3545 * pixelX and pixelY should be in the coordinate system of layout 3546 */ 3547 private int[] findNearestArea(int pixelX, int pixelY, 3548 int spanX, int spanY, CellLayout layout, int[] recycle) { 3549 return layout.findNearestArea( 3550 pixelX, pixelY, spanX, spanY, recycle); 3551 } 3552 3553 void setup(DragController dragController) { 3554 mSpringLoadedDragController = new SpringLoadedDragController(mLauncher); 3555 mDragController = dragController; 3556 3557 // hardware layers on children are enabled on startup, but should be disabled until 3558 // needed 3559 updateChildrenLayersEnabled(false); 3560 setWallpaperDimension(); 3561 } 3562 3563 /** 3564 * Called at the end of a drag which originated on the workspace. 3565 */ 3566 public void onDropCompleted(final View target, final DragObject d, 3567 final boolean isFlingToDelete, final boolean success) { 3568 if (mDeferDropAfterUninstall) { 3569 mDeferredAction = new Runnable() { 3570 public void run() { 3571 onDropCompleted(target, d, isFlingToDelete, success); 3572 mDeferredAction = null; 3573 } 3574 }; 3575 return; 3576 } 3577 3578 boolean beingCalledAfterUninstall = mDeferredAction != null; 3579 3580 if (success && !(beingCalledAfterUninstall && !mUninstallSuccessful)) { 3581 if (target != this && mDragInfo != null) { 3582 CellLayout parentCell = getParentCellLayoutForView(mDragInfo.cell); 3583 if (parentCell != null) { 3584 parentCell.removeView(mDragInfo.cell); 3585 } 3586 if (mDragInfo.cell instanceof DropTarget) { 3587 mDragController.removeDropTarget((DropTarget) mDragInfo.cell); 3588 } 3589 // If we move the item to anything not on the Workspace, check if any empty 3590 // screens need to be removed. If we dropped back on the workspace, this will 3591 // be done post drop animation. 3592 stripEmptyScreens(); 3593 } 3594 } else if (mDragInfo != null) { 3595 CellLayout cellLayout; 3596 if (mLauncher.isHotseatLayout(target)) { 3597 cellLayout = mLauncher.getHotseat().getLayout(); 3598 } else { 3599 cellLayout = getScreenWithId(mDragInfo.screenId); 3600 } 3601 cellLayout.onDropChild(mDragInfo.cell); 3602 } 3603 if ((d.cancelled || (beingCalledAfterUninstall && !mUninstallSuccessful)) 3604 && mDragInfo.cell != null) { 3605 mDragInfo.cell.setVisibility(VISIBLE); 3606 } 3607 mDragOutline = null; 3608 mDragInfo = null; 3609 } 3610 3611 public void deferCompleteDropAfterUninstallActivity() { 3612 mDeferDropAfterUninstall = true; 3613 } 3614 3615 /// maybe move this into a smaller part 3616 public void onUninstallActivityReturned(boolean success) { 3617 mDeferDropAfterUninstall = false; 3618 mUninstallSuccessful = success; 3619 if (mDeferredAction != null) { 3620 mDeferredAction.run(); 3621 } 3622 } 3623 3624 void updateItemLocationsInDatabase(CellLayout cl) { 3625 int count = cl.getShortcutsAndWidgets().getChildCount(); 3626 3627 long screenId = getIdForScreen(cl); 3628 int container = Favorites.CONTAINER_DESKTOP; 3629 3630 if (mLauncher.isHotseatLayout(cl)) { 3631 screenId = -1; 3632 container = Favorites.CONTAINER_HOTSEAT; 3633 } 3634 3635 for (int i = 0; i < count; i++) { 3636 View v = cl.getShortcutsAndWidgets().getChildAt(i); 3637 ItemInfo info = (ItemInfo) v.getTag(); 3638 // Null check required as the AllApps button doesn't have an item info 3639 if (info != null && info.requiresDbUpdate) { 3640 info.requiresDbUpdate = false; 3641 LauncherModel.modifyItemInDatabase(mLauncher, info, container, screenId, info.cellX, 3642 info.cellY, info.spanX, info.spanY); 3643 } 3644 } 3645 } 3646 3647 ArrayList<ComponentName> getUniqueComponents(boolean stripDuplicates, ArrayList<ComponentName> duplicates) { 3648 ArrayList<ComponentName> uniqueIntents = new ArrayList<ComponentName>(); 3649 getUniqueIntents((CellLayout) mLauncher.getHotseat().getLayout(), uniqueIntents, duplicates, false); 3650 int count = getChildCount(); 3651 for (int i = 0; i < count; i++) { 3652 CellLayout cl = (CellLayout) getChildAt(i); 3653 getUniqueIntents(cl, uniqueIntents, duplicates, false); 3654 } 3655 return uniqueIntents; 3656 } 3657 3658 void getUniqueIntents(CellLayout cl, ArrayList<ComponentName> uniqueIntents, 3659 ArrayList<ComponentName> duplicates, boolean stripDuplicates) { 3660 int count = cl.getShortcutsAndWidgets().getChildCount(); 3661 3662 ArrayList<View> children = new ArrayList<View>(); 3663 for (int i = 0; i < count; i++) { 3664 View v = cl.getShortcutsAndWidgets().getChildAt(i); 3665 children.add(v); 3666 } 3667 3668 for (int i = 0; i < count; i++) { 3669 View v = children.get(i); 3670 ItemInfo info = (ItemInfo) v.getTag(); 3671 // Null check required as the AllApps button doesn't have an item info 3672 if (info instanceof ShortcutInfo) { 3673 ShortcutInfo si = (ShortcutInfo) info; 3674 ComponentName cn = si.intent.getComponent(); 3675 3676 Uri dataUri = si.intent.getData(); 3677 // If dataUri is not null / empty or if this component isn't one that would 3678 // have previously showed up in the AllApps list, then this is a widget-type 3679 // shortcut, so ignore it. 3680 if (dataUri != null && !dataUri.equals(Uri.EMPTY)) { 3681 continue; 3682 } 3683 3684 if (!uniqueIntents.contains(cn)) { 3685 uniqueIntents.add(cn); 3686 } else { 3687 if (stripDuplicates) { 3688 cl.removeViewInLayout(v); 3689 LauncherModel.deleteItemFromDatabase(mLauncher, si); 3690 } 3691 if (duplicates != null) { 3692 duplicates.add(cn); 3693 } 3694 } 3695 } 3696 if (v instanceof FolderIcon) { 3697 FolderIcon fi = (FolderIcon) v; 3698 ArrayList<View> items = fi.getFolder().getItemsInReadingOrder(); 3699 for (int j = 0; j < items.size(); j++) { 3700 if (items.get(j).getTag() instanceof ShortcutInfo) { 3701 ShortcutInfo si = (ShortcutInfo) items.get(j).getTag(); 3702 ComponentName cn = si.intent.getComponent(); 3703 3704 Uri dataUri = si.intent.getData(); 3705 // If dataUri is not null / empty or if this component isn't one that would 3706 // have previously showed up in the AllApps list, then this is a widget-type 3707 // shortcut, so ignore it. 3708 if (dataUri != null && !dataUri.equals(Uri.EMPTY)) { 3709 continue; 3710 } 3711 3712 if (!uniqueIntents.contains(cn)) { 3713 uniqueIntents.add(cn); 3714 } else { 3715 if (stripDuplicates) { 3716 fi.getFolderInfo().remove(si); 3717 LauncherModel.deleteItemFromDatabase(mLauncher, si); 3718 } 3719 if (duplicates != null) { 3720 duplicates.add(cn); 3721 } 3722 } 3723 } 3724 } 3725 } 3726 } 3727 } 3728 3729 void saveWorkspaceToDb() { 3730 saveWorkspaceScreenToDb((CellLayout) mLauncher.getHotseat().getLayout()); 3731 int count = getChildCount(); 3732 for (int i = 0; i < count; i++) { 3733 CellLayout cl = (CellLayout) getChildAt(i); 3734 saveWorkspaceScreenToDb(cl); 3735 } 3736 } 3737 3738 void saveWorkspaceScreenToDb(CellLayout cl) { 3739 int count = cl.getShortcutsAndWidgets().getChildCount(); 3740 3741 long screenId = getIdForScreen(cl); 3742 int container = Favorites.CONTAINER_DESKTOP; 3743 3744 Hotseat hotseat = mLauncher.getHotseat(); 3745 if (mLauncher.isHotseatLayout(cl)) { 3746 screenId = -1; 3747 container = Favorites.CONTAINER_HOTSEAT; 3748 } 3749 3750 for (int i = 0; i < count; i++) { 3751 View v = cl.getShortcutsAndWidgets().getChildAt(i); 3752 ItemInfo info = (ItemInfo) v.getTag(); 3753 // Null check required as the AllApps button doesn't have an item info 3754 if (info != null) { 3755 int cellX = info.cellX; 3756 int cellY = info.cellY; 3757 if (container == Favorites.CONTAINER_HOTSEAT) { 3758 cellX = hotseat.getCellXFromOrder((int) info.screenId); 3759 cellY = hotseat.getCellYFromOrder((int) info.screenId); 3760 } 3761 LauncherModel.addItemToDatabase(mLauncher, info, container, screenId, cellX, 3762 cellY, false); 3763 } 3764 if (v instanceof FolderIcon) { 3765 FolderIcon fi = (FolderIcon) v; 3766 fi.getFolder().addItemLocationsInDatabase(); 3767 } 3768 } 3769 } 3770 3771 @Override 3772 public boolean supportsFlingToDelete() { 3773 return true; 3774 } 3775 3776 @Override 3777 public void onFlingToDelete(DragObject d, int x, int y, PointF vec) { 3778 // Do nothing 3779 } 3780 3781 @Override 3782 public void onFlingToDeleteCompleted() { 3783 // Do nothing 3784 } 3785 3786 public boolean isDropEnabled() { 3787 return true; 3788 } 3789 3790 @Override 3791 protected void onRestoreInstanceState(Parcelable state) { 3792 super.onRestoreInstanceState(state); 3793 Launcher.setScreen(mCurrentPage); 3794 } 3795 3796 @Override 3797 protected void dispatchRestoreInstanceState(SparseArray<Parcelable> container) { 3798 // We don't dispatch restoreInstanceState to our children using this code path. 3799 // Some pages will be restored immediately as their items are bound immediately, and 3800 // others we will need to wait until after their items are bound. 3801 mSavedStates = container; 3802 } 3803 3804 public void restoreInstanceStateForChild(int child) { 3805 if (mSavedStates != null) { 3806 mRestoredPages.add(child); 3807 CellLayout cl = (CellLayout) getChildAt(child); 3808 cl.restoreInstanceState(mSavedStates); 3809 } 3810 } 3811 3812 public void restoreInstanceStateForRemainingPages() { 3813 int count = getChildCount(); 3814 for (int i = 0; i < count; i++) { 3815 if (!mRestoredPages.contains(i)) { 3816 restoreInstanceStateForChild(i); 3817 } 3818 } 3819 mRestoredPages.clear(); 3820 } 3821 3822 @Override 3823 public void scrollLeft() { 3824 if (!isSmall() && !mIsSwitchingState) { 3825 super.scrollLeft(); 3826 } 3827 Folder openFolder = getOpenFolder(); 3828 if (openFolder != null) { 3829 openFolder.completeDragExit(); 3830 } 3831 } 3832 3833 @Override 3834 public void scrollRight() { 3835 if (!isSmall() && !mIsSwitchingState) { 3836 super.scrollRight(); 3837 } 3838 Folder openFolder = getOpenFolder(); 3839 if (openFolder != null) { 3840 openFolder.completeDragExit(); 3841 } 3842 } 3843 3844 @Override 3845 public boolean onEnterScrollArea(int x, int y, int direction) { 3846 // Ignore the scroll area if we are dragging over the hot seat 3847 boolean isPortrait = !LauncherAppState.isScreenLandscape(getContext()); 3848 if (mLauncher.getHotseat() != null && isPortrait) { 3849 Rect r = new Rect(); 3850 mLauncher.getHotseat().getHitRect(r); 3851 if (r.contains(x, y)) { 3852 return false; 3853 } 3854 } 3855 3856 boolean result = false; 3857 if (!isSmall() && !mIsSwitchingState && getOpenFolder() == null) { 3858 mInScrollArea = true; 3859 3860 final int page = getNextPage() + 3861 (direction == DragController.SCROLL_LEFT ? -1 : 1); 3862 // We always want to exit the current layout to ensure parity of enter / exit 3863 setCurrentDropLayout(null); 3864 3865 if (0 <= page && page < getChildCount()) { 3866 // Ensure that we are not dragging over to the custom content screen 3867 if (getScreenIdForPageIndex(page) == CUSTOM_CONTENT_SCREEN_ID) { 3868 return false; 3869 } 3870 3871 CellLayout layout = (CellLayout) getChildAt(page); 3872 setCurrentDragOverlappingLayout(layout); 3873 3874 // Workspace is responsible for drawing the edge glow on adjacent pages, 3875 // so we need to redraw the workspace when this may have changed. 3876 invalidate(); 3877 result = true; 3878 } 3879 } 3880 return result; 3881 } 3882 3883 @Override 3884 public boolean onExitScrollArea() { 3885 boolean result = false; 3886 if (mInScrollArea) { 3887 invalidate(); 3888 CellLayout layout = getCurrentDropLayout(); 3889 setCurrentDropLayout(layout); 3890 setCurrentDragOverlappingLayout(layout); 3891 3892 result = true; 3893 mInScrollArea = false; 3894 } 3895 return result; 3896 } 3897 3898 private void onResetScrollArea() { 3899 setCurrentDragOverlappingLayout(null); 3900 mInScrollArea = false; 3901 } 3902 3903 /** 3904 * Returns a specific CellLayout 3905 */ 3906 CellLayout getParentCellLayoutForView(View v) { 3907 ArrayList<CellLayout> layouts = getWorkspaceAndHotseatCellLayouts(); 3908 for (CellLayout layout : layouts) { 3909 if (layout.getShortcutsAndWidgets().indexOfChild(v) > -1) { 3910 return layout; 3911 } 3912 } 3913 return null; 3914 } 3915 3916 /** 3917 * Returns a list of all the CellLayouts in the workspace. 3918 */ 3919 ArrayList<CellLayout> getWorkspaceAndHotseatCellLayouts() { 3920 ArrayList<CellLayout> layouts = new ArrayList<CellLayout>(); 3921 int screenCount = getChildCount(); 3922 for (int screen = 0; screen < screenCount; screen++) { 3923 layouts.add(((CellLayout) getChildAt(screen))); 3924 } 3925 if (mLauncher.getHotseat() != null) { 3926 layouts.add(mLauncher.getHotseat().getLayout()); 3927 } 3928 return layouts; 3929 } 3930 3931 /** 3932 * We should only use this to search for specific children. Do not use this method to modify 3933 * ShortcutsAndWidgetsContainer directly. Includes ShortcutAndWidgetContainers from 3934 * the hotseat and workspace pages 3935 */ 3936 ArrayList<ShortcutAndWidgetContainer> getAllShortcutAndWidgetContainers() { 3937 ArrayList<ShortcutAndWidgetContainer> childrenLayouts = 3938 new ArrayList<ShortcutAndWidgetContainer>(); 3939 int screenCount = getChildCount(); 3940 for (int screen = 0; screen < screenCount; screen++) { 3941 childrenLayouts.add(((CellLayout) getChildAt(screen)).getShortcutsAndWidgets()); 3942 } 3943 if (mLauncher.getHotseat() != null) { 3944 childrenLayouts.add(mLauncher.getHotseat().getLayout().getShortcutsAndWidgets()); 3945 } 3946 return childrenLayouts; 3947 } 3948 3949 public Folder getFolderForTag(Object tag) { 3950 ArrayList<ShortcutAndWidgetContainer> childrenLayouts = 3951 getAllShortcutAndWidgetContainers(); 3952 for (ShortcutAndWidgetContainer layout: childrenLayouts) { 3953 int count = layout.getChildCount(); 3954 for (int i = 0; i < count; i++) { 3955 View child = layout.getChildAt(i); 3956 if (child instanceof Folder) { 3957 Folder f = (Folder) child; 3958 if (f.getInfo() == tag && f.getInfo().opened) { 3959 return f; 3960 } 3961 } 3962 } 3963 } 3964 return null; 3965 } 3966 3967 public View getViewForTag(Object tag) { 3968 ArrayList<ShortcutAndWidgetContainer> childrenLayouts = 3969 getAllShortcutAndWidgetContainers(); 3970 for (ShortcutAndWidgetContainer layout: childrenLayouts) { 3971 int count = layout.getChildCount(); 3972 for (int i = 0; i < count; i++) { 3973 View child = layout.getChildAt(i); 3974 if (child.getTag() == tag) { 3975 return child; 3976 } 3977 } 3978 } 3979 return null; 3980 } 3981 3982 void clearDropTargets() { 3983 ArrayList<ShortcutAndWidgetContainer> childrenLayouts = 3984 getAllShortcutAndWidgetContainers(); 3985 for (ShortcutAndWidgetContainer layout: childrenLayouts) { 3986 int childCount = layout.getChildCount(); 3987 for (int j = 0; j < childCount; j++) { 3988 View v = layout.getChildAt(j); 3989 if (v instanceof DropTarget) { 3990 mDragController.removeDropTarget((DropTarget) v); 3991 } 3992 } 3993 } 3994 } 3995 3996 // Removes ALL items that match a given package name, this is usually called when a package 3997 // has been removed and we want to remove all components (widgets, shortcuts, apps) that 3998 // belong to that package. 3999 void removeItemsByPackageName(final ArrayList<String> packages) { 4000 final HashSet<String> packageNames = new HashSet<String>(); 4001 packageNames.addAll(packages); 4002 4003 // Filter out all the ItemInfos that this is going to affect 4004 final HashSet<ItemInfo> infos = new HashSet<ItemInfo>(); 4005 final HashSet<ComponentName> cns = new HashSet<ComponentName>(); 4006 ArrayList<CellLayout> cellLayouts = getWorkspaceAndHotseatCellLayouts(); 4007 for (CellLayout layoutParent : cellLayouts) { 4008 ViewGroup layout = layoutParent.getShortcutsAndWidgets(); 4009 int childCount = layout.getChildCount(); 4010 for (int i = 0; i < childCount; ++i) { 4011 View view = layout.getChildAt(i); 4012 infos.add((ItemInfo) view.getTag()); 4013 } 4014 } 4015 LauncherModel.ItemInfoFilter filter = new LauncherModel.ItemInfoFilter() { 4016 @Override 4017 public boolean filterItem(ItemInfo parent, ItemInfo info, 4018 ComponentName cn) { 4019 if (packageNames.contains(cn.getPackageName())) { 4020 cns.add(cn); 4021 return true; 4022 } 4023 return false; 4024 } 4025 }; 4026 LauncherModel.filterItemInfos(infos, filter); 4027 4028 // Remove the affected components 4029 removeItemsByComponentName(cns); 4030 } 4031 4032 // Removes items that match the application info specified, when applications are removed 4033 // as a part of an update, this is called to ensure that other widgets and application 4034 // shortcuts are not removed. 4035 void removeItemsByApplicationInfo(final ArrayList<AppInfo> appInfos) { 4036 // Just create a hash table of all the specific components that this will affect 4037 HashSet<ComponentName> cns = new HashSet<ComponentName>(); 4038 for (AppInfo info : appInfos) { 4039 cns.add(info.componentName); 4040 } 4041 4042 // Remove all the things 4043 removeItemsByComponentName(cns); 4044 } 4045 4046 void removeItemsByComponentName(final HashSet<ComponentName> componentNames) { 4047 ArrayList<CellLayout> cellLayouts = getWorkspaceAndHotseatCellLayouts(); 4048 for (final CellLayout layoutParent: cellLayouts) { 4049 final ViewGroup layout = layoutParent.getShortcutsAndWidgets(); 4050 4051 final HashMap<ItemInfo, View> children = new HashMap<ItemInfo, View>(); 4052 for (int j = 0; j < layout.getChildCount(); j++) { 4053 final View view = layout.getChildAt(j); 4054 children.put((ItemInfo) view.getTag(), view); 4055 } 4056 4057 final ArrayList<View> childrenToRemove = new ArrayList<View>(); 4058 final HashMap<FolderInfo, ArrayList<ShortcutInfo>> folderAppsToRemove = 4059 new HashMap<FolderInfo, ArrayList<ShortcutInfo>>(); 4060 LauncherModel.ItemInfoFilter filter = new LauncherModel.ItemInfoFilter() { 4061 @Override 4062 public boolean filterItem(ItemInfo parent, ItemInfo info, 4063 ComponentName cn) { 4064 if (parent instanceof FolderInfo) { 4065 if (componentNames.contains(cn)) { 4066 FolderInfo folder = (FolderInfo) parent; 4067 ArrayList<ShortcutInfo> appsToRemove; 4068 if (folderAppsToRemove.containsKey(folder)) { 4069 appsToRemove = folderAppsToRemove.get(folder); 4070 } else { 4071 appsToRemove = new ArrayList<ShortcutInfo>(); 4072 folderAppsToRemove.put(folder, appsToRemove); 4073 } 4074 appsToRemove.add((ShortcutInfo) info); 4075 return true; 4076 } 4077 } else { 4078 if (componentNames.contains(cn)) { 4079 childrenToRemove.add(children.get(info)); 4080 return true; 4081 } 4082 } 4083 return false; 4084 } 4085 }; 4086 LauncherModel.filterItemInfos(children.keySet(), filter); 4087 4088 // Remove all the apps from their folders 4089 for (FolderInfo folder : folderAppsToRemove.keySet()) { 4090 ArrayList<ShortcutInfo> appsToRemove = folderAppsToRemove.get(folder); 4091 for (ShortcutInfo info : appsToRemove) { 4092 folder.remove(info); 4093 } 4094 } 4095 4096 // Remove all the other children 4097 for (View child : childrenToRemove) { 4098 // Note: We can not remove the view directly from CellLayoutChildren as this 4099 // does not re-mark the spaces as unoccupied. 4100 layoutParent.removeViewInLayout(child); 4101 if (child instanceof DropTarget) { 4102 mDragController.removeDropTarget((DropTarget) child); 4103 } 4104 } 4105 4106 if (childrenToRemove.size() > 0) { 4107 layout.requestLayout(); 4108 layout.invalidate(); 4109 } 4110 } 4111 4112 // Strip all the empty screens 4113 stripEmptyScreens(); 4114 } 4115 4116 void updateShortcuts(ArrayList<AppInfo> apps) { 4117 ArrayList<ShortcutAndWidgetContainer> childrenLayouts = getAllShortcutAndWidgetContainers(); 4118 for (ShortcutAndWidgetContainer layout: childrenLayouts) { 4119 int childCount = layout.getChildCount(); 4120 for (int j = 0; j < childCount; j++) { 4121 final View view = layout.getChildAt(j); 4122 Object tag = view.getTag(); 4123 4124 if (LauncherModel.isShortcutInfoUpdateable((ItemInfo) tag)) { 4125 ShortcutInfo info = (ShortcutInfo) tag; 4126 4127 final Intent intent = info.intent; 4128 final ComponentName name = intent.getComponent(); 4129 final int appCount = apps.size(); 4130 for (int k = 0; k < appCount; k++) { 4131 AppInfo app = apps.get(k); 4132 if (app.componentName.equals(name)) { 4133 BubbleTextView shortcut = (BubbleTextView) view; 4134 info.updateIcon(mIconCache); 4135 info.title = app.title.toString(); 4136 shortcut.applyFromShortcutInfo(info, mIconCache); 4137 } 4138 } 4139 } 4140 } 4141 } 4142 } 4143 4144 void moveToDefaultScreen(boolean animate) { 4145 if (!isSmall()) { 4146 if (animate) { 4147 snapToPage(mDefaultPage); 4148 } else { 4149 setCurrentPage(mDefaultPage); 4150 } 4151 } 4152 View child = getChildAt(mDefaultPage); 4153 if (child != null) { 4154 child.requestFocus(); 4155 } 4156 } 4157 4158 @Override 4159 protected int getPageIndicatorMarker(int pageIndex) { 4160 if (getScreenIdForPageIndex(pageIndex) == CUSTOM_CONTENT_SCREEN_ID) { 4161 return R.layout.custom_content_page_indicator_marker; 4162 } 4163 return super.getPageIndicatorMarker(pageIndex); 4164 } 4165 4166 @Override 4167 public void syncPages() { 4168 } 4169 4170 @Override 4171 public void syncPageItems(int page, boolean immediate) { 4172 } 4173 4174 protected String getCurrentPageDescription() { 4175 int page = (mNextPage != INVALID_PAGE) ? mNextPage : mCurrentPage; 4176 return String.format(getContext().getString(R.string.workspace_scroll_format), 4177 page + 1, getChildCount()); 4178 } 4179 4180 public void getLocationInDragLayer(int[] loc) { 4181 mLauncher.getDragLayer().getLocationInDragLayer(this, loc); 4182 } 4183} 4184