Workspace.java revision ab2d9d72ae0a37553a82fa845c412167c727a258
1/* 2 * Copyright (C) 2008 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17package com.android.launcher3; 18 19import android.animation.Animator; 20import android.animation.AnimatorListenerAdapter; 21import android.animation.AnimatorSet; 22import android.animation.LayoutTransition; 23import android.animation.ObjectAnimator; 24import android.animation.TimeInterpolator; 25import android.animation.ValueAnimator; 26import android.animation.ValueAnimator.AnimatorUpdateListener; 27import android.app.WallpaperManager; 28import android.appwidget.AppWidgetHostView; 29import android.appwidget.AppWidgetProviderInfo; 30import android.content.ComponentName; 31import android.content.Context; 32import android.content.Intent; 33import android.content.SharedPreferences; 34import android.content.res.Resources; 35import android.content.res.TypedArray; 36import android.graphics.Bitmap; 37import android.graphics.Canvas; 38import android.graphics.Matrix; 39import android.graphics.Point; 40import android.graphics.PointF; 41import android.graphics.Rect; 42import android.graphics.Region.Op; 43import android.graphics.drawable.Drawable; 44import android.net.Uri; 45import android.os.IBinder; 46import android.os.Parcelable; 47import android.util.AttributeSet; 48import android.util.Log; 49import android.util.SparseArray; 50import android.view.Choreographer; 51import android.view.Display; 52import android.view.MotionEvent; 53import android.view.View; 54import android.view.ViewGroup; 55import android.view.ViewParent; 56import android.view.animation.DecelerateInterpolator; 57import android.view.animation.Interpolator; 58import android.widget.TextView; 59 60import com.android.launcher3.FolderIcon.FolderRingAnimator; 61import com.android.launcher3.Launcher.CustomContentCallbacks; 62import com.android.launcher3.LauncherSettings.Favorites; 63 64import java.util.ArrayList; 65import java.util.HashMap; 66import java.util.HashSet; 67import java.util.Iterator; 68 69/** 70 * The workspace is a wide area with a wallpaper and a finite number of pages. 71 * Each page contains a number of icons, folders or widgets the user can 72 * interact with. A workspace is meant to be used with a fixed width only. 73 */ 74public class Workspace extends SmoothPagedView 75 implements DropTarget, DragSource, DragScroller, View.OnTouchListener, 76 DragController.DragListener, LauncherTransitionable, ViewGroup.OnHierarchyChangeListener, 77 Insettable { 78 private static final String TAG = "Launcher.Workspace"; 79 80 // Y rotation to apply to the workspace screens 81 private static final float WORKSPACE_OVERSCROLL_ROTATION = 24f; 82 83 private static final int CHILDREN_OUTLINE_FADE_OUT_DELAY = 0; 84 private static final int CHILDREN_OUTLINE_FADE_OUT_DURATION = 375; 85 private static final int CHILDREN_OUTLINE_FADE_IN_DURATION = 100; 86 87 private static final int BACKGROUND_FADE_OUT_DURATION = 350; 88 private static final int ADJACENT_SCREEN_DROP_DURATION = 300; 89 private static final int FLING_THRESHOLD_VELOCITY = 500; 90 91 private static final float ALPHA_CUTOFF_THRESHOLD = 0.01f; 92 93 // These animators are used to fade the children's outlines 94 private ObjectAnimator mChildrenOutlineFadeInAnimation; 95 private ObjectAnimator mChildrenOutlineFadeOutAnimation; 96 private float mChildrenOutlineAlpha = 0; 97 98 // These properties refer to the background protection gradient used for AllApps and Customize 99 private ValueAnimator mBackgroundFadeInAnimation; 100 private ValueAnimator mBackgroundFadeOutAnimation; 101 private Drawable mBackground; 102 boolean mDrawBackground = true; 103 private float mBackgroundAlpha = 0; 104 105 private static final long CUSTOM_CONTENT_GESTURE_DELAY = 200; 106 private long mTouchDownTime = -1; 107 private long mCustomContentShowTime = -1; 108 109 private LayoutTransition mLayoutTransition; 110 private final WallpaperManager mWallpaperManager; 111 private IBinder mWindowToken; 112 113 private int mOriginalDefaultPage; 114 private int mDefaultPage; 115 116 private ShortcutAndWidgetContainer mDragSourceInternal; 117 118 // The screen id used for the empty screen always present to the right. 119 private final static long EXTRA_EMPTY_SCREEN_ID = -201; 120 private final static long CUSTOM_CONTENT_SCREEN_ID = -301; 121 122 private HashMap<Long, CellLayout> mWorkspaceScreens = new HashMap<Long, CellLayout>(); 123 private ArrayList<Long> mScreenOrder = new ArrayList<Long>(); 124 125 /** 126 * CellInfo for the cell that is currently being dragged 127 */ 128 private CellLayout.CellInfo mDragInfo; 129 130 /** 131 * Target drop area calculated during last acceptDrop call. 132 */ 133 private int[] mTargetCell = new int[2]; 134 private int mDragOverX = -1; 135 private int mDragOverY = -1; 136 137 static Rect mLandscapeCellLayoutMetrics = null; 138 static Rect mPortraitCellLayoutMetrics = null; 139 140 CustomContentCallbacks mCustomContentCallbacks; 141 boolean mCustomContentShowing; 142 private float mLastCustomContentScrollProgress = -1f; 143 144 /** 145 * The CellLayout that is currently being dragged over 146 */ 147 private CellLayout mDragTargetLayout = null; 148 /** 149 * The CellLayout that we will show as glowing 150 */ 151 private CellLayout mDragOverlappingLayout = null; 152 153 /** 154 * The CellLayout which will be dropped to 155 */ 156 private CellLayout mDropToLayout = null; 157 158 private Launcher mLauncher; 159 private IconCache mIconCache; 160 private DragController mDragController; 161 162 // These are temporary variables to prevent having to allocate a new object just to 163 // return an (x, y) value from helper functions. Do NOT use them to maintain other state. 164 private int[] mTempCell = new int[2]; 165 private int[] mTempPt = new int[2]; 166 private int[] mTempEstimate = new int[2]; 167 private float[] mDragViewVisualCenter = new float[2]; 168 private float[] mTempCellLayoutCenterCoordinates = new float[2]; 169 private Matrix mTempInverseMatrix = new Matrix(); 170 171 private SpringLoadedDragController mSpringLoadedDragController; 172 private float mSpringLoadedShrinkFactor; 173 private float mOverviewModeShrinkFactor; 174 175 // State variable that indicates whether the pages are small (ie when you're 176 // in all apps or customize mode) 177 178 enum State { NORMAL, SPRING_LOADED, SMALL, OVERVIEW}; 179 private State mState = State.NORMAL; 180 private boolean mIsSwitchingState = false; 181 182 boolean mAnimatingViewIntoPlace = false; 183 boolean mIsDragOccuring = false; 184 boolean mChildrenLayersEnabled = true; 185 186 private boolean mStripScreensOnPageStopMoving = false; 187 188 /** Is the user is dragging an item near the edge of a page? */ 189 private boolean mInScrollArea = false; 190 191 private HolographicOutlineHelper mOutlineHelper; 192 private Bitmap mDragOutline = null; 193 private final Rect mTempRect = new Rect(); 194 private final int[] mTempXY = new int[2]; 195 private int[] mTempVisiblePagesRange = new int[2]; 196 private boolean mOverscrollTransformsSet; 197 public static final int DRAG_BITMAP_PADDING = 2; 198 private boolean mWorkspaceFadeInAdjacentScreens; 199 200 WallpaperOffsetInterpolator mWallpaperOffset; 201 private Runnable mDelayedResizeRunnable; 202 private Runnable mDelayedSnapToPageRunnable; 203 private Point mDisplaySize = new Point(); 204 private int mCameraDistance; 205 206 // Variables relating to the creation of user folders by hovering shortcuts over shortcuts 207 private static final int FOLDER_CREATION_TIMEOUT = 0; 208 private static final int REORDER_TIMEOUT = 250; 209 private final Alarm mFolderCreationAlarm = new Alarm(); 210 private final Alarm mReorderAlarm = new Alarm(); 211 private FolderRingAnimator mDragFolderRingAnimator = null; 212 private FolderIcon mDragOverFolderIcon = null; 213 private boolean mCreateUserFolderOnDrop = false; 214 private boolean mAddToExistingFolderOnDrop = false; 215 private DropTarget.DragEnforcer mDragEnforcer; 216 private float mMaxDistanceForFolderCreation; 217 218 // Variables relating to touch disambiguation (scrolling workspace vs. scrolling a widget) 219 private float mXDown; 220 private float mYDown; 221 final static float START_DAMPING_TOUCH_SLOP_ANGLE = (float) Math.PI / 6; 222 final static float MAX_SWIPE_ANGLE = (float) Math.PI / 3; 223 final static float TOUCH_SLOP_DAMPING_FACTOR = 4; 224 225 // Relating to the animation of items being dropped externally 226 public static final int ANIMATE_INTO_POSITION_AND_DISAPPEAR = 0; 227 public static final int ANIMATE_INTO_POSITION_AND_REMAIN = 1; 228 public static final int ANIMATE_INTO_POSITION_AND_RESIZE = 2; 229 public static final int COMPLETE_TWO_STAGE_WIDGET_DROP_ANIMATION = 3; 230 public static final int CANCEL_TWO_STAGE_WIDGET_DROP_ANIMATION = 4; 231 232 // Related to dragging, folder creation and reordering 233 private static final int DRAG_MODE_NONE = 0; 234 private static final int DRAG_MODE_CREATE_FOLDER = 1; 235 private static final int DRAG_MODE_ADD_TO_FOLDER = 2; 236 private static final int DRAG_MODE_REORDER = 3; 237 private int mDragMode = DRAG_MODE_NONE; 238 private int mLastReorderX = -1; 239 private int mLastReorderY = -1; 240 241 private SparseArray<Parcelable> mSavedStates; 242 private final ArrayList<Integer> mRestoredPages = new ArrayList<Integer>(); 243 244 // These variables are used for storing the initial and final values during workspace animations 245 private int mSavedScrollX; 246 private float mSavedRotationY; 247 private float mSavedTranslationX; 248 249 private float mCurrentScale; 250 private float mNewScale; 251 private float[] mOldBackgroundAlphas; 252 private float[] mOldAlphas; 253 private float[] mNewBackgroundAlphas; 254 private float[] mNewAlphas; 255 private int mLastChildCount = -1; 256 private float mTransitionProgress; 257 258 private Runnable mDeferredAction; 259 private boolean mDeferDropAfterUninstall; 260 private boolean mUninstallSuccessful; 261 262 private final Runnable mBindPages = new Runnable() { 263 @Override 264 public void run() { 265 mLauncher.getModel().bindRemainingSynchronousPages(); 266 } 267 }; 268 269 /** 270 * Used to inflate the Workspace from XML. 271 * 272 * @param context The application's context. 273 * @param attrs The attributes set containing the Workspace's customization values. 274 */ 275 public Workspace(Context context, AttributeSet attrs) { 276 this(context, attrs, 0); 277 } 278 279 /** 280 * Used to inflate the Workspace from XML. 281 * 282 * @param context The application's context. 283 * @param attrs The attributes set containing the Workspace's customization values. 284 * @param defStyle Unused. 285 */ 286 public Workspace(Context context, AttributeSet attrs, int defStyle) { 287 super(context, attrs, defStyle); 288 mContentIsRefreshable = false; 289 290 mOutlineHelper = HolographicOutlineHelper.obtain(context); 291 292 mDragEnforcer = new DropTarget.DragEnforcer(context); 293 // With workspace, data is available straight from the get-go 294 setDataIsReady(); 295 296 mLauncher = (Launcher) context; 297 final Resources res = getResources(); 298 mWorkspaceFadeInAdjacentScreens = res.getBoolean(R.bool.config_workspaceFadeAdjacentScreens); 299 mFadeInAdjacentScreens = false; 300 mWallpaperManager = WallpaperManager.getInstance(context); 301 302 TypedArray a = context.obtainStyledAttributes(attrs, 303 R.styleable.Workspace, defStyle, 0); 304 mSpringLoadedShrinkFactor = 305 res.getInteger(R.integer.config_workspaceSpringLoadShrinkPercentage) / 100.0f; 306 mOverviewModeShrinkFactor = 307 res.getInteger(R.integer.config_workspaceOverviewShrinkPercentage) / 100.0f; 308 mCameraDistance = res.getInteger(R.integer.config_cameraDistance); 309 mOriginalDefaultPage = mDefaultPage = a.getInt(R.styleable.Workspace_defaultScreen, 1); 310 a.recycle(); 311 312 setOnHierarchyChangeListener(this); 313 setHapticFeedbackEnabled(false); 314 315 initWorkspace(); 316 317 // Disable multitouch across the workspace/all apps/customize tray 318 setMotionEventSplittingEnabled(true); 319 320 // Unless otherwise specified this view is important for accessibility. 321 if (getImportantForAccessibility() == View.IMPORTANT_FOR_ACCESSIBILITY_AUTO) { 322 setImportantForAccessibility(View.IMPORTANT_FOR_ACCESSIBILITY_YES); 323 } 324 } 325 326 @Override 327 public void setInsets(Rect insets) { 328 mInsets.set(insets); 329 } 330 331 // estimate the size of a widget with spans hSpan, vSpan. return MAX_VALUE for each 332 // dimension if unsuccessful 333 public int[] estimateItemSize(int hSpan, int vSpan, 334 ItemInfo itemInfo, boolean springLoaded) { 335 int[] size = new int[2]; 336 if (getChildCount() > 0) { 337 CellLayout cl = (CellLayout) mLauncher.getWorkspace().getChildAt(0); 338 Rect r = estimateItemPosition(cl, itemInfo, 0, 0, hSpan, vSpan); 339 size[0] = r.width(); 340 size[1] = r.height(); 341 if (springLoaded) { 342 size[0] *= mSpringLoadedShrinkFactor; 343 size[1] *= mSpringLoadedShrinkFactor; 344 } 345 return size; 346 } else { 347 size[0] = Integer.MAX_VALUE; 348 size[1] = Integer.MAX_VALUE; 349 return size; 350 } 351 } 352 353 public Rect estimateItemPosition(CellLayout cl, ItemInfo pendingInfo, 354 int hCell, int vCell, int hSpan, int vSpan) { 355 Rect r = new Rect(); 356 cl.cellToRect(hCell, vCell, hSpan, vSpan, r); 357 return r; 358 } 359 360 public void onDragStart(final DragSource source, Object info, int dragAction) { 361 mIsDragOccuring = true; 362 updateChildrenLayersEnabled(false); 363 mLauncher.lockScreenOrientation(); 364 mLauncher.onInteractionBegin(); 365 setChildrenBackgroundAlphaMultipliers(1f); 366 // Prevent any Un/InstallShortcutReceivers from updating the db while we are dragging 367 InstallShortcutReceiver.enableInstallQueue(); 368 UninstallShortcutReceiver.enableUninstallQueue(); 369 post(new Runnable() { 370 @Override 371 public void run() { 372 if (mIsDragOccuring) { 373 addExtraEmptyScreenOnDrag(); 374 } 375 } 376 }); 377 } 378 379 public void onDragEnd() { 380 mIsDragOccuring = false; 381 updateChildrenLayersEnabled(false); 382 mLauncher.unlockScreenOrientation(false); 383 384 // Re-enable any Un/InstallShortcutReceiver and now process any queued items 385 InstallShortcutReceiver.disableAndFlushInstallQueue(getContext()); 386 UninstallShortcutReceiver.disableAndFlushUninstallQueue(getContext()); 387 388 removeExtraEmptyScreen(); 389 mDragSourceInternal = null; 390 mLauncher.onInteractionEnd(); 391 } 392 393 /** 394 * Initializes various states for this workspace. 395 */ 396 protected void initWorkspace() { 397 Context context = getContext(); 398 mCurrentPage = mDefaultPage; 399 Launcher.setScreen(mCurrentPage); 400 LauncherAppState app = LauncherAppState.getInstance(); 401 DeviceProfile grid = app.getDynamicGrid().getDeviceProfile(); 402 mIconCache = app.getIconCache(); 403 setWillNotDraw(false); 404 setClipChildren(false); 405 setClipToPadding(false); 406 setChildrenDrawnWithCacheEnabled(true); 407 setMinScale(0.5f); 408 setupLayoutTransition(); 409 410 final Resources res = getResources(); 411 try { 412 mBackground = res.getDrawable(R.drawable.apps_customize_bg); 413 } catch (Resources.NotFoundException e) { 414 // In this case, we will skip drawing background protection 415 } 416 417 mWallpaperOffset = new WallpaperOffsetInterpolator(); 418 Display display = mLauncher.getWindowManager().getDefaultDisplay(); 419 display.getSize(mDisplaySize); 420 421 mMaxDistanceForFolderCreation = (0.55f * grid.iconSizePx); 422 mFlingThresholdVelocity = (int) (FLING_THRESHOLD_VELOCITY * mDensity); 423 } 424 425 private void setupLayoutTransition() { 426 // We want to show layout transitions when pages are deleted, to close the gap. 427 mLayoutTransition = new LayoutTransition(); 428 mLayoutTransition.enableTransitionType(LayoutTransition.DISAPPEARING); 429 mLayoutTransition.enableTransitionType(LayoutTransition.CHANGE_DISAPPEARING); 430 mLayoutTransition.disableTransitionType(LayoutTransition.APPEARING); 431 mLayoutTransition.disableTransitionType(LayoutTransition.CHANGE_APPEARING); 432 setLayoutTransition(mLayoutTransition); 433 } 434 435 @Override 436 protected int getScrollMode() { 437 return SmoothPagedView.X_LARGE_MODE; 438 } 439 440 @Override 441 public void onChildViewAdded(View parent, View child) { 442 if (!(child instanceof CellLayout)) { 443 throw new IllegalArgumentException("A Workspace can only have CellLayout children."); 444 } 445 CellLayout cl = ((CellLayout) child); 446 cl.setOnInterceptTouchListener(this); 447 cl.setClickable(true); 448 cl.setContentDescription(getContext().getString( 449 R.string.workspace_description_format, getChildCount())); 450 451 super.onChildViewAdded(parent, child); 452 } 453 454 protected boolean shouldDrawChild(View child) { 455 final CellLayout cl = (CellLayout) child; 456 return super.shouldDrawChild(child) && 457 (cl.getShortcutsAndWidgets().getAlpha() > 0 || 458 cl.getBackgroundAlpha() > 0); 459 } 460 461 /** 462 * @return The open folder on the current screen, or null if there is none 463 */ 464 Folder getOpenFolder() { 465 DragLayer dragLayer = mLauncher.getDragLayer(); 466 int count = dragLayer.getChildCount(); 467 for (int i = 0; i < count; i++) { 468 View child = dragLayer.getChildAt(i); 469 if (child instanceof Folder) { 470 Folder folder = (Folder) child; 471 if (folder.getInfo().opened) 472 return folder; 473 } 474 } 475 return null; 476 } 477 478 boolean isTouchActive() { 479 return mTouchState != TOUCH_STATE_REST; 480 } 481 482 public void removeAllWorkspaceScreens() { 483 Launcher.addDumpLog(TAG, "10249126 - removeAllWorkspaceScreens()", true); 484 // Remove the pages and clear the screen models 485 removeAllViews(); 486 mScreenOrder.clear(); 487 mWorkspaceScreens.clear(); 488 } 489 490 public long insertNewWorkspaceScreenBeforeEmptyScreen(long screenId) { 491 // Find the index to insert this view into. If the empty screen exists, then 492 // insert it before that. 493 int insertIndex = mScreenOrder.indexOf(EXTRA_EMPTY_SCREEN_ID); 494 Launcher.addDumpLog(TAG, "10249126 - insertNewWorkspaceScreenBeforeEmptyScreen(" + insertIndex + ")", true); 495 if (insertIndex < 0) { 496 insertIndex = mScreenOrder.size(); 497 } 498 return insertNewWorkspaceScreen(screenId, insertIndex); 499 } 500 501 public long insertNewWorkspaceScreen(long screenId) { 502 return insertNewWorkspaceScreen(screenId, getChildCount()); 503 } 504 505 public long insertNewWorkspaceScreen(long screenId, int insertIndex) { 506 String log = "10249126 - insertNewWorkspaceScreen(" + screenId + ", " + insertIndex + ")"; 507 Launcher.addDumpLog(TAG, log, true); 508 509 if (mWorkspaceScreens.containsKey(screenId)) { 510 throw new RuntimeException("Screen id " + screenId + " already exists!"); 511 } 512 513 CellLayout newScreen = (CellLayout) 514 mLauncher.getLayoutInflater().inflate(R.layout.workspace_screen, null); 515 516 newScreen.setOnLongClickListener(mLongClickListener); 517 newScreen.setOnClickListener(mLauncher); 518 newScreen.setSoundEffectsEnabled(false); 519 mWorkspaceScreens.put(screenId, newScreen); 520 mScreenOrder.add(insertIndex, screenId); 521 addView(newScreen, insertIndex); 522 return screenId; 523 } 524 525 public void createCustomContentPage() { 526 Launcher.addDumpLog(TAG, "10249126 - createCustomContentPage()", true); 527 CellLayout customScreen = (CellLayout) 528 mLauncher.getLayoutInflater().inflate(R.layout.workspace_screen, null); 529 530 mWorkspaceScreens.put(CUSTOM_CONTENT_SCREEN_ID, customScreen); 531 mScreenOrder.add(0, CUSTOM_CONTENT_SCREEN_ID); 532 533 // We want no padding on the custom content 534 customScreen.setPadding(0, 0, 0, 0); 535 536 addFullScreenPage(customScreen); 537 538 // Ensure that the current page and default page are maintained. 539 mDefaultPage = mOriginalDefaultPage + 1; 540 setCurrentPage(getCurrentPage() + 1); 541 } 542 543 public void addToCustomContentPage(View customContent, CustomContentCallbacks callbacks) { 544 if (getPageIndexForScreenId(CUSTOM_CONTENT_SCREEN_ID) < 0) { 545 throw new RuntimeException("Expected custom content screen to exist"); 546 } 547 548 // Add the custom content to the full screen custom page 549 CellLayout customScreen = getScreenWithId(CUSTOM_CONTENT_SCREEN_ID); 550 int spanX = customScreen.getCountX(); 551 int spanY = customScreen.getCountY(); 552 CellLayout.LayoutParams lp = new CellLayout.LayoutParams(0, 0, spanX, spanY); 553 lp.canReorder = false; 554 lp.isFullscreen = true; 555 if (customContent instanceof Insettable) { 556 ((Insettable)customContent).setInsets(mInsets); 557 } 558 customScreen.addViewToCellLayout(customContent, 0, 0, lp, true); 559 560 mCustomContentCallbacks = callbacks; 561 } 562 563 public void addExtraEmptyScreenOnDrag() { 564 boolean lastChildOnScreen = false; 565 boolean childOnFinalScreen = false; 566 567 if (mDragSourceInternal != null) { 568 if (mDragSourceInternal.getChildCount() == 1) { 569 lastChildOnScreen = true; 570 } 571 CellLayout cl = (CellLayout) mDragSourceInternal.getParent(); 572 if (indexOfChild(cl) == getChildCount() - 1) { 573 childOnFinalScreen = true; 574 } 575 } 576 577 // If this is the last item on the final screen 578 if (lastChildOnScreen && childOnFinalScreen) { 579 return; 580 } 581 if (!mWorkspaceScreens.containsKey(EXTRA_EMPTY_SCREEN_ID)) { 582 insertNewWorkspaceScreen(EXTRA_EMPTY_SCREEN_ID); 583 } 584 } 585 586 public boolean addExtraEmptyScreen() { 587 if (!mWorkspaceScreens.containsKey(EXTRA_EMPTY_SCREEN_ID)) { 588 insertNewWorkspaceScreen(EXTRA_EMPTY_SCREEN_ID); 589 return true; 590 } 591 return false; 592 } 593 594 public void removeExtraEmptyScreen() { 595 int nScreens = getChildCount(); 596 nScreens = hasCustomContent() ? nScreens - 1 : nScreens; 597 598 if (mWorkspaceScreens.containsKey(EXTRA_EMPTY_SCREEN_ID) && nScreens > 1) { 599 CellLayout cl = mWorkspaceScreens.get(EXTRA_EMPTY_SCREEN_ID); 600 mWorkspaceScreens.remove(EXTRA_EMPTY_SCREEN_ID); 601 mScreenOrder.remove(EXTRA_EMPTY_SCREEN_ID); 602 removeView(cl); 603 } 604 } 605 606 public long commitExtraEmptyScreen() { 607 Launcher.addDumpLog(TAG, "10249126 - commitExtraEmptyScreen()", true); 608 609 // Write all the logs to disk 610 Launcher.addDumpLog(TAG, "10249126 - commitExtraEmptyScreen() - dumping logs to disk", true); 611 mLauncher.dumpLogsToLocalData(false); 612 613 CellLayout cl = mWorkspaceScreens.get(EXTRA_EMPTY_SCREEN_ID); 614 mWorkspaceScreens.remove(EXTRA_EMPTY_SCREEN_ID); 615 mScreenOrder.remove(EXTRA_EMPTY_SCREEN_ID); 616 617 long newId = LauncherAppState.getLauncherProvider().generateNewScreenId(); 618 mWorkspaceScreens.put(newId, cl); 619 mScreenOrder.add(newId); 620 621 // Update the model for the new screen 622 mLauncher.getModel().updateWorkspaceScreenOrder(mLauncher, mScreenOrder); 623 624 return newId; 625 } 626 627 628 public CellLayout getScreenWithId(long screenId) { 629 Launcher.addDumpLog(TAG, "10249126 - getScreenWithId(" + screenId + ")", true); 630 CellLayout layout = mWorkspaceScreens.get(screenId); 631 return layout; 632 } 633 634 public long getIdForScreen(CellLayout layout) { 635 Launcher.addDumpLog(TAG, "10249126 - getIdForScreen()", true); 636 Iterator<Long> iter = mWorkspaceScreens.keySet().iterator(); 637 while (iter.hasNext()) { 638 long id = iter.next(); 639 if (mWorkspaceScreens.get(id) == layout) { 640 return id; 641 } 642 } 643 return -1; 644 } 645 646 public int getPageIndexForScreenId(long screenId) { 647 Launcher.addDumpLog(TAG, "10249126 - getPageIndexForScreenId(" + screenId + ")", true); 648 return indexOfChild(mWorkspaceScreens.get(screenId)); 649 } 650 651 public long getScreenIdForPageIndex(int index) { 652 if (0 <= index && index < mScreenOrder.size()) { 653 return mScreenOrder.get(index); 654 } 655 return -1; 656 } 657 658 ArrayList<Long> getScreenOrder() { 659 return mScreenOrder; 660 } 661 662 public void stripEmptyScreens() { 663 if (isPageMoving()) { 664 mStripScreensOnPageStopMoving = true; 665 return; 666 } 667 668 Launcher.addDumpLog(TAG, "10249126 - stripEmptyScreens()", true); 669 670 int currentPage = getNextPage(); 671 ArrayList<Long> removeScreens = new ArrayList<Long>(); 672 for (Long id: mWorkspaceScreens.keySet()) { 673 CellLayout cl = mWorkspaceScreens.get(id); 674 if (id >= 0 && cl.getShortcutsAndWidgets().getChildCount() == 0) { 675 removeScreens.add(id); 676 } 677 } 678 679 // We enforce at least one page to add new items to. In the case that we remove the last 680 // such screen, we convert the last screen to the empty screen 681 int minScreens = hasCustomContent() ? 2 : 1; 682 683 int pageShift = 0; 684 for (Long id: removeScreens) { 685 Launcher.addDumpLog(TAG, "10249126 - \tremove(" + id + ")", true); 686 CellLayout cl = mWorkspaceScreens.get(id); 687 mWorkspaceScreens.remove(id); 688 mScreenOrder.remove(id); 689 690 if (getChildCount() > minScreens) { 691 if (indexOfChild(cl) < currentPage) { 692 pageShift++; 693 } 694 removeView(cl); 695 } else { 696 // if this is the last non-custom content screen, convert it to the empty screen 697 mWorkspaceScreens.put(EXTRA_EMPTY_SCREEN_ID, cl); 698 mScreenOrder.add(EXTRA_EMPTY_SCREEN_ID); 699 } 700 } 701 702 if (!removeScreens.isEmpty()) { 703 // Update the model if we have changed any screens 704 mLauncher.getModel().updateWorkspaceScreenOrder(mLauncher, mScreenOrder); 705 } 706 707 if (pageShift >= 0) { 708 setCurrentPage(currentPage - pageShift); 709 } 710 } 711 712 // See implementation for parameter definition. 713 void addInScreen(View child, long container, long screenId, 714 int x, int y, int spanX, int spanY) { 715 addInScreen(child, container, screenId, x, y, spanX, spanY, false, false); 716 } 717 718 // At bind time, we use the rank (screenId) to compute x and y for hotseat items. 719 // See implementation for parameter definition. 720 void addInScreenFromBind(View child, long container, long screenId, int x, int y, 721 int spanX, int spanY) { 722 addInScreen(child, container, screenId, x, y, spanX, spanY, false, true); 723 } 724 725 // See implementation for parameter definition. 726 void addInScreen(View child, long container, long screenId, int x, int y, int spanX, int spanY, 727 boolean insert) { 728 addInScreen(child, container, screenId, x, y, spanX, spanY, insert, false); 729 } 730 731 /** 732 * Adds the specified child in the specified screen. The position and dimension of 733 * the child are defined by x, y, spanX and spanY. 734 * 735 * @param child The child to add in one of the workspace's screens. 736 * @param screenId The screen in which to add the child. 737 * @param x The X position of the child in the screen's grid. 738 * @param y The Y position of the child in the screen's grid. 739 * @param spanX The number of cells spanned horizontally by the child. 740 * @param spanY The number of cells spanned vertically by the child. 741 * @param insert When true, the child is inserted at the beginning of the children list. 742 * @param computeXYFromRank When true, we use the rank (stored in screenId) to compute 743 * the x and y position in which to place hotseat items. Otherwise 744 * we use the x and y position to compute the rank. 745 */ 746 void addInScreen(View child, long container, long screenId, int x, int y, int spanX, int spanY, 747 boolean insert, boolean computeXYFromRank) { 748 if (container == LauncherSettings.Favorites.CONTAINER_DESKTOP) { 749 if (getScreenWithId(screenId) == null) { 750 Log.e(TAG, "Skipping child, screenId " + screenId + " not found"); 751 // DEBUGGING - Print out the stack trace to see where we are adding from 752 new Throwable().printStackTrace(); 753 return; 754 } 755 } 756 if (screenId == EXTRA_EMPTY_SCREEN_ID) { 757 // This should never happen 758 throw new RuntimeException("Screen id should not be EXTRA_EMPTY_SCREEN_ID"); 759 } 760 761 final CellLayout layout; 762 if (container == LauncherSettings.Favorites.CONTAINER_HOTSEAT) { 763 layout = mLauncher.getHotseat().getLayout(); 764 child.setOnKeyListener(null); 765 766 // Hide folder title in the hotseat 767 if (child instanceof FolderIcon) { 768 ((FolderIcon) child).setTextVisible(false); 769 } 770 771 if (computeXYFromRank) { 772 x = mLauncher.getHotseat().getCellXFromOrder((int) screenId); 773 y = mLauncher.getHotseat().getCellYFromOrder((int) screenId); 774 } else { 775 screenId = mLauncher.getHotseat().getOrderInHotseat(x, y); 776 } 777 } else { 778 // Show folder title if not in the hotseat 779 if (child instanceof FolderIcon) { 780 ((FolderIcon) child).setTextVisible(true); 781 } 782 layout = getScreenWithId(screenId); 783 child.setOnKeyListener(new IconKeyEventListener()); 784 } 785 786 ViewGroup.LayoutParams genericLp = child.getLayoutParams(); 787 CellLayout.LayoutParams lp; 788 if (genericLp == null || !(genericLp instanceof CellLayout.LayoutParams)) { 789 lp = new CellLayout.LayoutParams(x, y, spanX, spanY); 790 } else { 791 lp = (CellLayout.LayoutParams) genericLp; 792 lp.cellX = x; 793 lp.cellY = y; 794 lp.cellHSpan = spanX; 795 lp.cellVSpan = spanY; 796 } 797 798 if (spanX < 0 && spanY < 0) { 799 lp.isLockedToGrid = false; 800 } 801 802 // Get the canonical child id to uniquely represent this view in this screen 803 int childId = LauncherModel.getCellLayoutChildId(container, screenId, x, y, spanX, spanY); 804 boolean markCellsAsOccupied = !(child instanceof Folder); 805 if (!layout.addViewToCellLayout(child, insert ? 0 : -1, childId, lp, markCellsAsOccupied)) { 806 // TODO: This branch occurs when the workspace is adding views 807 // outside of the defined grid 808 // maybe we should be deleting these items from the LauncherModel? 809 Launcher.addDumpLog(TAG, "Failed to add to item at (" + lp.cellX + "," + lp.cellY + ") to CellLayout", true); 810 } 811 812 if (!(child instanceof Folder)) { 813 child.setHapticFeedbackEnabled(false); 814 child.setOnLongClickListener(mLongClickListener); 815 } 816 if (child instanceof DropTarget) { 817 mDragController.addDropTarget((DropTarget) child); 818 } 819 } 820 821 /** 822 * Called directly from a CellLayout (not by the framework), after we've been added as a 823 * listener via setOnInterceptTouchEventListener(). This allows us to tell the CellLayout 824 * that it should intercept touch events, which is not something that is normally supported. 825 */ 826 @Override 827 public boolean onTouch(View v, MotionEvent event) { 828 return (isSmall() || !isFinishedSwitchingState()) 829 || (!isSmall() && indexOfChild(v) != mCurrentPage); 830 } 831 832 public boolean isSwitchingState() { 833 return mIsSwitchingState; 834 } 835 836 /** This differs from isSwitchingState in that we take into account how far the transition 837 * has completed. */ 838 public boolean isFinishedSwitchingState() { 839 return !mIsSwitchingState || (mTransitionProgress > 0.5f); 840 } 841 842 protected void onWindowVisibilityChanged (int visibility) { 843 mLauncher.onWindowVisibilityChanged(visibility); 844 if (mCustomContentShowing && mCustomContentCallbacks != null) { 845 if (visibility == View.VISIBLE) { 846 mCustomContentCallbacks.onShow(); 847 } else if (visibility == View.GONE) { 848 mCustomContentCallbacks.onHide(); 849 } 850 } 851 } 852 853 @Override 854 public boolean dispatchUnhandledMove(View focused, int direction) { 855 if (isSmall() || !isFinishedSwitchingState()) { 856 // when the home screens are shrunken, shouldn't allow side-scrolling 857 return false; 858 } 859 return super.dispatchUnhandledMove(focused, direction); 860 } 861 862 @Override 863 public boolean onInterceptTouchEvent(MotionEvent ev) { 864 switch (ev.getAction() & MotionEvent.ACTION_MASK) { 865 case MotionEvent.ACTION_DOWN: 866 mXDown = ev.getX(); 867 mYDown = ev.getY(); 868 mTouchDownTime = System.currentTimeMillis(); 869 break; 870 case MotionEvent.ACTION_POINTER_UP: 871 case MotionEvent.ACTION_UP: 872 if (mTouchState == TOUCH_STATE_REST) { 873 final CellLayout currentPage = (CellLayout) getChildAt(mCurrentPage); 874 if (!currentPage.lastDownOnOccupiedCell()) { 875 onWallpaperTap(ev); 876 } 877 } 878 } 879 return super.onInterceptTouchEvent(ev); 880 } 881 882 protected void reinflateWidgetsIfNecessary() { 883 final int clCount = getChildCount(); 884 for (int i = 0; i < clCount; i++) { 885 CellLayout cl = (CellLayout) getChildAt(i); 886 ShortcutAndWidgetContainer swc = cl.getShortcutsAndWidgets(); 887 final int itemCount = swc.getChildCount(); 888 for (int j = 0; j < itemCount; j++) { 889 View v = swc.getChildAt(j); 890 891 if (v.getTag() instanceof LauncherAppWidgetInfo) { 892 LauncherAppWidgetInfo info = (LauncherAppWidgetInfo) v.getTag(); 893 LauncherAppWidgetHostView lahv = (LauncherAppWidgetHostView) info.hostView; 894 if (lahv != null && lahv.orientationChangedSincedInflation()) { 895 mLauncher.removeAppWidget(info); 896 // Remove the current widget which is inflated with the wrong orientation 897 cl.removeView(lahv); 898 mLauncher.bindAppWidget(info); 899 } 900 } 901 } 902 } 903 } 904 905 @Override 906 protected void determineScrollingStart(MotionEvent ev) { 907 if (!isFinishedSwitchingState()) return; 908 909 float deltaX = ev.getX() - mXDown; 910 float absDeltaX = Math.abs(deltaX); 911 float absDeltaY = Math.abs(ev.getY() - mYDown); 912 913 if (Float.compare(absDeltaX, 0f) == 0) return; 914 915 float slope = absDeltaY / absDeltaX; 916 float theta = (float) Math.atan(slope); 917 918 if (absDeltaX > mTouchSlop || absDeltaY > mTouchSlop) { 919 cancelCurrentPageLongPress(); 920 } 921 922 boolean passRightSwipesToCustomContent = 923 (mTouchDownTime - mCustomContentShowTime) > CUSTOM_CONTENT_GESTURE_DELAY; 924 925 if (deltaX > 0 && getScreenIdForPageIndex(getCurrentPage()) == CUSTOM_CONTENT_SCREEN_ID 926 && passRightSwipesToCustomContent) { 927 // Pass swipes to the right to the custom content page. 928 return; 929 } 930 931 if (theta > MAX_SWIPE_ANGLE) { 932 // Above MAX_SWIPE_ANGLE, we don't want to ever start scrolling the workspace 933 return; 934 } else if (theta > START_DAMPING_TOUCH_SLOP_ANGLE) { 935 // Above START_DAMPING_TOUCH_SLOP_ANGLE and below MAX_SWIPE_ANGLE, we want to 936 // increase the touch slop to make it harder to begin scrolling the workspace. This 937 // results in vertically scrolling widgets to more easily. The higher the angle, the 938 // more we increase touch slop. 939 theta -= START_DAMPING_TOUCH_SLOP_ANGLE; 940 float extraRatio = (float) 941 Math.sqrt((theta / (MAX_SWIPE_ANGLE - START_DAMPING_TOUCH_SLOP_ANGLE))); 942 super.determineScrollingStart(ev, 1 + TOUCH_SLOP_DAMPING_FACTOR * extraRatio); 943 } else { 944 // Below START_DAMPING_TOUCH_SLOP_ANGLE, we don't do anything special 945 super.determineScrollingStart(ev); 946 } 947 } 948 949 protected void onPageBeginMoving() { 950 super.onPageBeginMoving(); 951 952 if (isHardwareAccelerated()) { 953 updateChildrenLayersEnabled(false); 954 } else { 955 if (mNextPage != INVALID_PAGE) { 956 // we're snapping to a particular screen 957 enableChildrenCache(mCurrentPage, mNextPage); 958 } else { 959 // this is when user is actively dragging a particular screen, they might 960 // swipe it either left or right (but we won't advance by more than one screen) 961 enableChildrenCache(mCurrentPage - 1, mCurrentPage + 1); 962 } 963 } 964 965 // Only show page outlines as we pan if we are on large screen 966 if (LauncherAppState.getInstance().isScreenLarge()) { 967 showOutlines(); 968 } 969 970 // If we are not fading in adjacent screens, we still need to restore the alpha in case the 971 // user scrolls while we are transitioning (should not affect dispatchDraw optimizations) 972 if (!mWorkspaceFadeInAdjacentScreens) { 973 for (int i = 0; i < getChildCount(); ++i) { 974 ((CellLayout) getPageAt(i)).setShortcutAndWidgetAlpha(1f); 975 } 976 } 977 } 978 979 protected void onPageEndMoving() { 980 super.onPageEndMoving(); 981 982 if (isHardwareAccelerated()) { 983 updateChildrenLayersEnabled(false); 984 } else { 985 clearChildrenCache(); 986 } 987 988 989 if (mDragController.isDragging()) { 990 if (isSmall()) { 991 // If we are in springloaded mode, then force an event to check if the current touch 992 // is under a new page (to scroll to) 993 mDragController.forceTouchMove(); 994 } 995 } else { 996 // If we are not mid-dragging, hide the page outlines if we are on a large screen 997 if (LauncherAppState.getInstance().isScreenLarge()) { 998 hideOutlines(); 999 } 1000 } 1001 1002 if (mDelayedResizeRunnable != null) { 1003 mDelayedResizeRunnable.run(); 1004 mDelayedResizeRunnable = null; 1005 } 1006 1007 if (mDelayedSnapToPageRunnable != null) { 1008 mDelayedSnapToPageRunnable.run(); 1009 mDelayedSnapToPageRunnable = null; 1010 } 1011 if (mStripScreensOnPageStopMoving) { 1012 stripEmptyScreens(); 1013 mStripScreensOnPageStopMoving = false; 1014 } 1015 1016 if (hasCustomContent() && getNextPage() == 0 && !mCustomContentShowing) { 1017 mCustomContentShowing = true; 1018 if (mCustomContentCallbacks != null) { 1019 mCustomContentCallbacks.onShow(); 1020 mCustomContentShowTime = System.currentTimeMillis(); 1021 } 1022 } else if (hasCustomContent() && getNextPage() != 0 && mCustomContentShowing) { 1023 mCustomContentShowing = false; 1024 if (mCustomContentCallbacks != null) { 1025 mCustomContentCallbacks.onHide(); 1026 mLauncher.resetQSBScroll(); 1027 } 1028 } 1029 } 1030 1031 @Override 1032 protected void notifyPageSwitchListener() { 1033 super.notifyPageSwitchListener(); 1034 Launcher.setScreen(mCurrentPage); 1035 }; 1036 1037 protected void setWallpaperDimension() { 1038 String spKey = WallpaperCropActivity.getSharedPreferencesKey(); 1039 SharedPreferences sp = mLauncher.getSharedPreferences(spKey, Context.MODE_PRIVATE); 1040 WallpaperPickerActivity.suggestWallpaperDimension(mLauncher.getResources(), 1041 sp, mLauncher.getWindowManager(), mWallpaperManager); 1042 } 1043 1044 1045 1046 1047 protected void snapToPage(int whichPage, Runnable r) { 1048 if (mDelayedSnapToPageRunnable != null) { 1049 mDelayedSnapToPageRunnable.run(); 1050 } 1051 mDelayedSnapToPageRunnable = r; 1052 snapToPage(whichPage, SLOW_PAGE_SNAP_ANIMATION_DURATION); 1053 } 1054 1055 protected void snapToScreenId(long screenId, Runnable r) { 1056 snapToPage(getPageIndexForScreenId(screenId), r); 1057 } 1058 1059 class WallpaperOffsetInterpolator implements Choreographer.FrameCallback { 1060 float mFinalOffset = 0.0f; 1061 float mCurrentOffset = 0.5f; // to force an initial update 1062 //long mLastWallpaperOffsetUpdateTime; 1063 boolean mWaitingForUpdate; 1064 Choreographer mChoreographer; 1065 Interpolator mInterpolator; 1066 boolean mAnimating; 1067 long mAnimationStartTime; 1068 float mAnimationStartOffset; 1069 final int ANIMATION_DURATION = 250; 1070 int mNumScreens; 1071 1072 public WallpaperOffsetInterpolator() { 1073 mChoreographer = Choreographer.getInstance(); 1074 mInterpolator = new DecelerateInterpolator(1.5f); 1075 } 1076 1077 @Override 1078 public void doFrame(long frameTimeNanos) { 1079 updateOffset(false); 1080 } 1081 1082 1083 private void updateOffset(boolean force) { 1084 if (mWaitingForUpdate || force) { 1085 mWaitingForUpdate = false; 1086 if (computeScrollOffset() && mWindowToken != null) { 1087 try { 1088 mWallpaperManager.setWallpaperOffsets(mWindowToken, 1089 mWallpaperOffset.getCurrX(), 0.5f); 1090 setWallpaperOffsetSteps(); 1091 } catch (IllegalArgumentException e) { 1092 Log.e(TAG, "Error updating wallpaper offset: " + e); 1093 } 1094 } 1095 } 1096 } 1097 1098 public boolean computeScrollOffset() { 1099 final float oldOffset = mCurrentOffset; 1100 if (mAnimating) { 1101 long durationSinceAnimation = System.currentTimeMillis() - mAnimationStartTime; 1102 float t0 = durationSinceAnimation / (float) ANIMATION_DURATION; 1103 float t1 = mInterpolator.getInterpolation(t0); 1104 mCurrentOffset = mAnimationStartOffset + 1105 (mFinalOffset - mAnimationStartOffset) * t1; 1106 mAnimating = durationSinceAnimation < ANIMATION_DURATION; 1107 } else { 1108 mCurrentOffset = mFinalOffset; 1109 } 1110 1111 if (Math.abs(mCurrentOffset - mFinalOffset) > 0.0000001f) { 1112 scheduleUpdate(); 1113 } 1114 if (Math.abs(oldOffset - mCurrentOffset) > 0.0000001f) { 1115 return true; 1116 } 1117 return false; 1118 } 1119 1120 private float wallpaperOffsetForCurrentScroll() { 1121 if (getChildCount() <= 1) { 1122 return 0; 1123 } 1124 final int lastIndex = isLayoutRtl() ? 0 : getChildCount() - 1; 1125 final int firstIndex = isLayoutRtl() ? getChildCount() - 2 : 1; 1126 int firstPageScrollX = getScrollForPage(firstIndex); 1127 int scrollRange = getScrollForPage(lastIndex) - firstPageScrollX; 1128 if (scrollRange == 0) { 1129 return 0; 1130 } else { 1131 // do different behavior if it's a live wallpaper? 1132 float offset = (getScrollX() - firstPageScrollX) / (float) scrollRange; 1133 return offset; 1134 } 1135 } 1136 1137 public void syncWithScroll() { 1138 float offset = wallpaperOffsetForCurrentScroll(); 1139 mWallpaperOffset.setFinalX(offset); 1140 updateOffset(true); 1141 } 1142 1143 public float getCurrX() { 1144 return mCurrentOffset; 1145 } 1146 1147 public float getFinalX() { 1148 return mFinalOffset; 1149 } 1150 1151 private void animateToFinal() { 1152 mAnimating = true; 1153 mAnimationStartOffset = mCurrentOffset; 1154 mAnimationStartTime = System.currentTimeMillis(); 1155 } 1156 1157 private void setWallpaperOffsetSteps() { 1158 // Set wallpaper offset steps (1 / (number of screens - 1)) 1159 mWallpaperManager.setWallpaperOffsetSteps(1.0f / (getChildCount() - 1), 1.0f); 1160 } 1161 1162 public void setFinalX(float x) { 1163 scheduleUpdate(); 1164 mFinalOffset = Math.max(0f, Math.min(x, 1.0f)); 1165 if (getChildCount() != mNumScreens) { 1166 if (mNumScreens > 0) { 1167 // Don't animate if we're going from 0 screens 1168 animateToFinal(); 1169 } 1170 mNumScreens = getChildCount(); 1171 } 1172 } 1173 1174 private void scheduleUpdate() { 1175 if (!mWaitingForUpdate) { 1176 mChoreographer.postFrameCallback(this); 1177 mWaitingForUpdate = true; 1178 } 1179 } 1180 1181 public void jumpToFinal() { 1182 mCurrentOffset = mFinalOffset; 1183 } 1184 } 1185 1186 @Override 1187 public void computeScroll() { 1188 super.computeScroll(); 1189 mWallpaperOffset.syncWithScroll(); 1190 } 1191 1192 void showOutlines() { 1193 if (!isSmall() && !mIsSwitchingState) { 1194 if (mChildrenOutlineFadeOutAnimation != null) mChildrenOutlineFadeOutAnimation.cancel(); 1195 if (mChildrenOutlineFadeInAnimation != null) mChildrenOutlineFadeInAnimation.cancel(); 1196 mChildrenOutlineFadeInAnimation = LauncherAnimUtils.ofFloat(this, "childrenOutlineAlpha", 1.0f); 1197 mChildrenOutlineFadeInAnimation.setDuration(CHILDREN_OUTLINE_FADE_IN_DURATION); 1198 mChildrenOutlineFadeInAnimation.start(); 1199 } 1200 } 1201 1202 void hideOutlines() { 1203 if (!isSmall() && !mIsSwitchingState) { 1204 if (mChildrenOutlineFadeInAnimation != null) mChildrenOutlineFadeInAnimation.cancel(); 1205 if (mChildrenOutlineFadeOutAnimation != null) mChildrenOutlineFadeOutAnimation.cancel(); 1206 mChildrenOutlineFadeOutAnimation = LauncherAnimUtils.ofFloat(this, "childrenOutlineAlpha", 0.0f); 1207 mChildrenOutlineFadeOutAnimation.setDuration(CHILDREN_OUTLINE_FADE_OUT_DURATION); 1208 mChildrenOutlineFadeOutAnimation.setStartDelay(CHILDREN_OUTLINE_FADE_OUT_DELAY); 1209 mChildrenOutlineFadeOutAnimation.start(); 1210 } 1211 } 1212 1213 public void showOutlinesTemporarily() { 1214 if (!mIsPageMoving && !isTouchActive()) { 1215 snapToPage(mCurrentPage); 1216 } 1217 } 1218 1219 public void setChildrenOutlineAlpha(float alpha) { 1220 mChildrenOutlineAlpha = alpha; 1221 for (int i = 0; i < getChildCount(); i++) { 1222 CellLayout cl = (CellLayout) getChildAt(i); 1223 cl.setBackgroundAlpha(alpha); 1224 } 1225 } 1226 1227 public float getChildrenOutlineAlpha() { 1228 return mChildrenOutlineAlpha; 1229 } 1230 1231 void disableBackground() { 1232 mDrawBackground = false; 1233 } 1234 void enableBackground() { 1235 mDrawBackground = true; 1236 } 1237 1238 private void animateBackgroundGradient(float finalAlpha, boolean animated) { 1239 if (mBackground == null) return; 1240 if (mBackgroundFadeInAnimation != null) { 1241 mBackgroundFadeInAnimation.cancel(); 1242 mBackgroundFadeInAnimation = null; 1243 } 1244 if (mBackgroundFadeOutAnimation != null) { 1245 mBackgroundFadeOutAnimation.cancel(); 1246 mBackgroundFadeOutAnimation = null; 1247 } 1248 float startAlpha = getBackgroundAlpha(); 1249 if (finalAlpha != startAlpha) { 1250 if (animated) { 1251 mBackgroundFadeOutAnimation = 1252 LauncherAnimUtils.ofFloat(this, startAlpha, finalAlpha); 1253 mBackgroundFadeOutAnimation.addUpdateListener(new AnimatorUpdateListener() { 1254 public void onAnimationUpdate(ValueAnimator animation) { 1255 setBackgroundAlpha(((Float) animation.getAnimatedValue()).floatValue()); 1256 } 1257 }); 1258 mBackgroundFadeOutAnimation.setInterpolator(new DecelerateInterpolator(1.5f)); 1259 mBackgroundFadeOutAnimation.setDuration(BACKGROUND_FADE_OUT_DURATION); 1260 mBackgroundFadeOutAnimation.start(); 1261 } else { 1262 setBackgroundAlpha(finalAlpha); 1263 } 1264 } 1265 } 1266 1267 public void setBackgroundAlpha(float alpha) { 1268 if (alpha != mBackgroundAlpha) { 1269 mBackgroundAlpha = alpha; 1270 invalidate(); 1271 } 1272 } 1273 1274 public float getBackgroundAlpha() { 1275 return mBackgroundAlpha; 1276 } 1277 1278 float backgroundAlphaInterpolator(float r) { 1279 float pivotA = 0.1f; 1280 float pivotB = 0.4f; 1281 if (r < pivotA) { 1282 return 0; 1283 } else if (r > pivotB) { 1284 return 1.0f; 1285 } else { 1286 return (r - pivotA)/(pivotB - pivotA); 1287 } 1288 } 1289 1290 private void updatePageAlphaValues(int screenCenter) { 1291 boolean isInOverscroll = mOverScrollX < 0 || mOverScrollX > mMaxScrollX; 1292 if (mWorkspaceFadeInAdjacentScreens && 1293 mState == State.NORMAL && 1294 !mIsSwitchingState && 1295 !isInOverscroll) { 1296 for (int i = 0; i < getChildCount(); i++) { 1297 CellLayout child = (CellLayout) getChildAt(i); 1298 if (child != null) { 1299 float scrollProgress = getScrollProgress(screenCenter, child, i); 1300 float alpha = 1 - Math.abs(scrollProgress); 1301 child.getShortcutsAndWidgets().setAlpha(alpha); 1302 if (!mIsDragOccuring) { 1303 child.setBackgroundAlphaMultiplier( 1304 backgroundAlphaInterpolator(Math.abs(scrollProgress))); 1305 } else { 1306 child.setBackgroundAlphaMultiplier(1f); 1307 } 1308 } 1309 } 1310 } 1311 } 1312 1313 private void setChildrenBackgroundAlphaMultipliers(float a) { 1314 for (int i = 0; i < getChildCount(); i++) { 1315 CellLayout child = (CellLayout) getChildAt(i); 1316 child.setBackgroundAlphaMultiplier(a); 1317 } 1318 } 1319 1320 public boolean hasCustomContent() { 1321 return (mScreenOrder.size() > 0 && mScreenOrder.get(0) == CUSTOM_CONTENT_SCREEN_ID); 1322 } 1323 1324 public boolean isOnOrMovingToCustomContent() { 1325 return hasCustomContent() && getNextPage() == 0; 1326 } 1327 1328 private void updateStateForCustomContent(int screenCenter) { 1329 if (hasCustomContent()) { 1330 int index = mScreenOrder.indexOf(CUSTOM_CONTENT_SCREEN_ID); 1331 int scrollDelta = getScrollForPage(index + 1) - getScrollX(); 1332 float translationX = Math.max(scrollDelta, 0); 1333 float progress = (1.0f * scrollDelta) / 1334 (getScrollForPage(index + 1) - getScrollForPage(index)); 1335 progress = Math.max(0, progress); 1336 1337 if (Float.compare(progress, mLastCustomContentScrollProgress) == 0) return; 1338 mLastCustomContentScrollProgress = progress; 1339 1340 setBackgroundAlpha(progress * 0.8f); 1341 1342 if (mLauncher.getHotseat() != null) { 1343 mLauncher.getHotseat().setTranslationX(translationX); 1344 } 1345 1346 if (getPageIndicator() != null) { 1347 getPageIndicator().setTranslationX(translationX); 1348 } 1349 1350 if (mCustomContentCallbacks != null) { 1351 mCustomContentCallbacks.onScrollProgressChanged(progress); 1352 } 1353 } 1354 } 1355 1356 @Override 1357 protected void screenScrolled(int screenCenter) { 1358 final boolean isRtl = isLayoutRtl(); 1359 super.screenScrolled(screenCenter); 1360 1361 updatePageAlphaValues(screenCenter); 1362 updateStateForCustomContent(screenCenter); 1363 enableHwLayersOnVisiblePages(); 1364 1365 if ((mOverScrollX < 0 && !hasCustomContent()) || mOverScrollX > mMaxScrollX) { 1366 int index = 0; 1367 float pivotX = 0f; 1368 final float leftBiasedPivot = 0.25f; 1369 final float rightBiasedPivot = 0.75f; 1370 final int lowerIndex = 0; 1371 final int upperIndex = getChildCount() - 1; 1372 if (isRtl) { 1373 index = mOverScrollX < 0 ? upperIndex : lowerIndex; 1374 pivotX = (index == 0 ? leftBiasedPivot : rightBiasedPivot); 1375 } else { 1376 index = mOverScrollX < 0 ? lowerIndex : upperIndex; 1377 pivotX = (index == 0 ? rightBiasedPivot : leftBiasedPivot); 1378 } 1379 1380 CellLayout cl = (CellLayout) getChildAt(index); 1381 float scrollProgress = getScrollProgress(screenCenter, cl, index); 1382 final boolean isLeftPage = (isRtl ? index > 0 : index == 0); 1383 cl.setOverScrollAmount(Math.abs(scrollProgress), isLeftPage); 1384 float rotation = -WORKSPACE_OVERSCROLL_ROTATION * scrollProgress; 1385 cl.setRotationY(rotation); 1386 if (!mOverscrollTransformsSet) { 1387 mOverscrollTransformsSet = true; 1388 cl.setCameraDistance(mDensity * mCameraDistance); 1389 cl.setPivotX(cl.getMeasuredWidth() * pivotX); 1390 cl.setPivotY(cl.getMeasuredHeight() * 0.5f); 1391 cl.setOverscrollTransformsDirty(true); 1392 } 1393 } else { 1394 if (mOverscrollTransformsSet) { 1395 mOverscrollTransformsSet = false; 1396 ((CellLayout) getChildAt(0)).resetOverscrollTransforms(); 1397 ((CellLayout) getChildAt(getChildCount() - 1)).resetOverscrollTransforms(); 1398 } 1399 } 1400 } 1401 1402 @Override 1403 protected void overScroll(float amount) { 1404 acceleratedOverScroll(amount); 1405 } 1406 1407 protected void onAttachedToWindow() { 1408 super.onAttachedToWindow(); 1409 mWindowToken = getWindowToken(); 1410 computeScroll(); 1411 mDragController.setWindowToken(mWindowToken); 1412 } 1413 1414 protected void onDetachedFromWindow() { 1415 super.onDetachedFromWindow(); 1416 mWindowToken = null; 1417 } 1418 1419 @Override 1420 protected void onLayout(boolean changed, int left, int top, int right, int bottom) { 1421 if (mFirstLayout && mCurrentPage >= 0 && mCurrentPage < getChildCount()) { 1422 mWallpaperOffset.syncWithScroll(); 1423 mWallpaperOffset.jumpToFinal(); 1424 } 1425 super.onLayout(changed, left, top, right, bottom); 1426 } 1427 1428 @Override 1429 protected void onDraw(Canvas canvas) { 1430 // Draw the background gradient if necessary 1431 if (mBackground != null && mBackgroundAlpha > 0.0f && mDrawBackground) { 1432 int alpha = (int) (mBackgroundAlpha * 255); 1433 mBackground.setAlpha(alpha); 1434 mBackground.setBounds(getScrollX(), 0, getScrollX() + getMeasuredWidth(), 1435 getMeasuredHeight()); 1436 mBackground.draw(canvas); 1437 } 1438 1439 super.onDraw(canvas); 1440 1441 // Call back to LauncherModel to finish binding after the first draw 1442 post(mBindPages); 1443 } 1444 1445 boolean isDrawingBackgroundGradient() { 1446 return (mBackground != null && mBackgroundAlpha > 0.0f && mDrawBackground); 1447 } 1448 1449 @Override 1450 protected boolean onRequestFocusInDescendants(int direction, Rect previouslyFocusedRect) { 1451 if (!mLauncher.isAllAppsVisible()) { 1452 final Folder openFolder = getOpenFolder(); 1453 if (openFolder != null) { 1454 return openFolder.requestFocus(direction, previouslyFocusedRect); 1455 } else { 1456 return super.onRequestFocusInDescendants(direction, previouslyFocusedRect); 1457 } 1458 } 1459 return false; 1460 } 1461 1462 @Override 1463 public int getDescendantFocusability() { 1464 if (isSmall()) { 1465 return ViewGroup.FOCUS_BLOCK_DESCENDANTS; 1466 } 1467 return super.getDescendantFocusability(); 1468 } 1469 1470 @Override 1471 public void addFocusables(ArrayList<View> views, int direction, int focusableMode) { 1472 if (!mLauncher.isAllAppsVisible()) { 1473 final Folder openFolder = getOpenFolder(); 1474 if (openFolder != null) { 1475 openFolder.addFocusables(views, direction); 1476 } else { 1477 super.addFocusables(views, direction, focusableMode); 1478 } 1479 } 1480 } 1481 1482 public boolean isSmall() { 1483 return mState == State.SMALL || mState == State.SPRING_LOADED || mState == State.OVERVIEW; 1484 } 1485 1486 void enableChildrenCache(int fromPage, int toPage) { 1487 if (fromPage > toPage) { 1488 final int temp = fromPage; 1489 fromPage = toPage; 1490 toPage = temp; 1491 } 1492 1493 final int screenCount = getChildCount(); 1494 1495 fromPage = Math.max(fromPage, 0); 1496 toPage = Math.min(toPage, screenCount - 1); 1497 1498 for (int i = fromPage; i <= toPage; i++) { 1499 final CellLayout layout = (CellLayout) getChildAt(i); 1500 layout.setChildrenDrawnWithCacheEnabled(true); 1501 layout.setChildrenDrawingCacheEnabled(true); 1502 } 1503 } 1504 1505 void clearChildrenCache() { 1506 final int screenCount = getChildCount(); 1507 for (int i = 0; i < screenCount; i++) { 1508 final CellLayout layout = (CellLayout) getChildAt(i); 1509 layout.setChildrenDrawnWithCacheEnabled(false); 1510 // In software mode, we don't want the items to continue to be drawn into bitmaps 1511 if (!isHardwareAccelerated()) { 1512 layout.setChildrenDrawingCacheEnabled(false); 1513 } 1514 } 1515 } 1516 1517 private void updateChildrenLayersEnabled(boolean force) { 1518 boolean small = mState == State.SMALL || mState == State.OVERVIEW || mIsSwitchingState; 1519 boolean enableChildrenLayers = force || small || mAnimatingViewIntoPlace || isPageMoving(); 1520 1521 if (enableChildrenLayers != mChildrenLayersEnabled) { 1522 mChildrenLayersEnabled = enableChildrenLayers; 1523 if (mChildrenLayersEnabled) { 1524 enableHwLayersOnVisiblePages(); 1525 } else { 1526 for (int i = 0; i < getPageCount(); i++) { 1527 final CellLayout cl = (CellLayout) getChildAt(i); 1528 cl.disableHardwareLayers(); 1529 } 1530 } 1531 } 1532 } 1533 1534 private void enableHwLayersOnVisiblePages() { 1535 if (mChildrenLayersEnabled) { 1536 final int screenCount = getChildCount(); 1537 getVisiblePages(mTempVisiblePagesRange); 1538 int leftScreen = mTempVisiblePagesRange[0]; 1539 int rightScreen = mTempVisiblePagesRange[1]; 1540 if (leftScreen == rightScreen) { 1541 // make sure we're caching at least two pages always 1542 if (rightScreen < screenCount - 1) { 1543 rightScreen++; 1544 } else if (leftScreen > 0) { 1545 leftScreen--; 1546 } 1547 } 1548 for (int i = 0; i < screenCount; i++) { 1549 final CellLayout layout = (CellLayout) getPageAt(i); 1550 if (!(leftScreen <= i && i <= rightScreen && shouldDrawChild(layout))) { 1551 layout.disableHardwareLayers(); 1552 } 1553 } 1554 for (int i = 0; i < screenCount; i++) { 1555 final CellLayout layout = (CellLayout) getPageAt(i); 1556 if (leftScreen <= i && i <= rightScreen && shouldDrawChild(layout)) { 1557 layout.enableHardwareLayers(); 1558 } 1559 } 1560 } 1561 } 1562 1563 public void buildPageHardwareLayers() { 1564 // force layers to be enabled just for the call to buildLayer 1565 updateChildrenLayersEnabled(true); 1566 if (getWindowToken() != null) { 1567 final int childCount = getChildCount(); 1568 for (int i = 0; i < childCount; i++) { 1569 CellLayout cl = (CellLayout) getChildAt(i); 1570 cl.buildHardwareLayer(); 1571 } 1572 } 1573 updateChildrenLayersEnabled(false); 1574 } 1575 1576 protected void onWallpaperTap(MotionEvent ev) { 1577 final int[] position = mTempCell; 1578 getLocationOnScreen(position); 1579 1580 int pointerIndex = ev.getActionIndex(); 1581 position[0] += (int) ev.getX(pointerIndex); 1582 position[1] += (int) ev.getY(pointerIndex); 1583 1584 mWallpaperManager.sendWallpaperCommand(getWindowToken(), 1585 ev.getAction() == MotionEvent.ACTION_UP 1586 ? WallpaperManager.COMMAND_TAP : WallpaperManager.COMMAND_SECONDARY_TAP, 1587 position[0], position[1], 0, null); 1588 } 1589 1590 /* 1591 * This interpolator emulates the rate at which the perceived scale of an object changes 1592 * as its distance from a camera increases. When this interpolator is applied to a scale 1593 * animation on a view, it evokes the sense that the object is shrinking due to moving away 1594 * from the camera. 1595 */ 1596 static class ZInterpolator implements TimeInterpolator { 1597 private float focalLength; 1598 1599 public ZInterpolator(float foc) { 1600 focalLength = foc; 1601 } 1602 1603 public float getInterpolation(float input) { 1604 return (1.0f - focalLength / (focalLength + input)) / 1605 (1.0f - focalLength / (focalLength + 1.0f)); 1606 } 1607 } 1608 1609 /* 1610 * The exact reverse of ZInterpolator. 1611 */ 1612 static class InverseZInterpolator implements TimeInterpolator { 1613 private ZInterpolator zInterpolator; 1614 public InverseZInterpolator(float foc) { 1615 zInterpolator = new ZInterpolator(foc); 1616 } 1617 public float getInterpolation(float input) { 1618 return 1 - zInterpolator.getInterpolation(1 - input); 1619 } 1620 } 1621 1622 /* 1623 * ZInterpolator compounded with an ease-out. 1624 */ 1625 static class ZoomOutInterpolator implements TimeInterpolator { 1626 private final DecelerateInterpolator decelerate = new DecelerateInterpolator(0.75f); 1627 private final ZInterpolator zInterpolator = new ZInterpolator(0.13f); 1628 1629 public float getInterpolation(float input) { 1630 return decelerate.getInterpolation(zInterpolator.getInterpolation(input)); 1631 } 1632 } 1633 1634 /* 1635 * InvereZInterpolator compounded with an ease-out. 1636 */ 1637 static class ZoomInInterpolator implements TimeInterpolator { 1638 private final InverseZInterpolator inverseZInterpolator = new InverseZInterpolator(0.35f); 1639 private final DecelerateInterpolator decelerate = new DecelerateInterpolator(3.0f); 1640 1641 public float getInterpolation(float input) { 1642 return decelerate.getInterpolation(inverseZInterpolator.getInterpolation(input)); 1643 } 1644 } 1645 1646 private final ZoomInInterpolator mZoomInInterpolator = new ZoomInInterpolator(); 1647 1648 /* 1649 * 1650 * We call these methods (onDragStartedWithItemSpans/onDragStartedWithSize) whenever we 1651 * start a drag in Launcher, regardless of whether the drag has ever entered the Workspace 1652 * 1653 * These methods mark the appropriate pages as accepting drops (which alters their visual 1654 * appearance). 1655 * 1656 */ 1657 public void onDragStartedWithItem(View v) { 1658 final Canvas canvas = new Canvas(); 1659 1660 // The outline is used to visualize where the item will land if dropped 1661 mDragOutline = createDragOutline(v, canvas, DRAG_BITMAP_PADDING); 1662 } 1663 1664 public void onDragStartedWithItem(PendingAddItemInfo info, Bitmap b, boolean clipAlpha) { 1665 final Canvas canvas = new Canvas(); 1666 1667 int[] size = estimateItemSize(info.spanX, info.spanY, info, false); 1668 1669 // The outline is used to visualize where the item will land if dropped 1670 mDragOutline = createDragOutline(b, canvas, DRAG_BITMAP_PADDING, size[0], 1671 size[1], clipAlpha); 1672 } 1673 1674 public void exitWidgetResizeMode() { 1675 DragLayer dragLayer = mLauncher.getDragLayer(); 1676 dragLayer.clearAllResizeFrames(); 1677 } 1678 1679 private void initAnimationArrays() { 1680 final int childCount = getChildCount(); 1681 if (mLastChildCount == childCount) return; 1682 1683 mOldBackgroundAlphas = new float[childCount]; 1684 mOldAlphas = new float[childCount]; 1685 mNewBackgroundAlphas = new float[childCount]; 1686 mNewAlphas = new float[childCount]; 1687 } 1688 1689 Animator getChangeStateAnimation(final State state, boolean animated) { 1690 return getChangeStateAnimation(state, animated, 0, -1); 1691 } 1692 1693 @Override 1694 protected void getOverviewModePages(int[] range) { 1695 int count = mScreenOrder.size(); 1696 1697 int start = hasCustomContent() ? 1 : 0; 1698 int end = getChildCount() - 1; 1699 1700 range[0] = Math.max(0, Math.min(start, getChildCount() - 1)); 1701 range[1] = Math.max(0, end); 1702 } 1703 1704 protected void onStartReordering() { 1705 super.onStartReordering(); 1706 int count = getChildCount(); 1707 for (int i = 0; i < count; i++) { 1708 ((CellLayout) getChildAt(i)).setUseActiveGlowBackground(true); 1709 } 1710 showOutlines(); 1711 1712 // Reordering handles its own animations, disable the automatic ones. 1713 setLayoutTransition(null); 1714 } 1715 1716 protected void onEndReordering() { 1717 super.onEndReordering(); 1718 int count = getChildCount(); 1719 for (int i = 0; i < count; i++) { 1720 ((CellLayout) getChildAt(i)).setUseActiveGlowBackground(false); 1721 } 1722 hideOutlines(); 1723 1724 mScreenOrder.clear(); 1725 for (int i = 0; i < count; i++) { 1726 CellLayout cl = ((CellLayout) getChildAt(i)); 1727 mScreenOrder.add(getIdForScreen(cl)); 1728 } 1729 1730 Launcher.addDumpLog(TAG, "10249126 - onEndReordering()", true); 1731 mLauncher.getModel().updateWorkspaceScreenOrder(mLauncher, mScreenOrder); 1732 1733 // Re-enable auto layout transitions for page deletion. 1734 setLayoutTransition(mLayoutTransition); 1735 } 1736 1737 public boolean isInOverviewMode() { 1738 return mState == State.OVERVIEW; 1739 } 1740 1741 public void enterOverviewMode() { 1742 mLauncher.onInteractionBegin(); 1743 enableOverviewMode(true, -1, true); 1744 } 1745 1746 public void exitOverviewMode(boolean animated) { 1747 exitOverviewMode(-1, animated); 1748 mLauncher.onInteractionEnd(); 1749 } 1750 1751 public void exitOverviewMode(int snapPage, boolean animated) { 1752 enableOverviewMode(false, snapPage, animated); 1753 mLauncher.onInteractionEnd(); 1754 } 1755 1756 private void enableOverviewMode(boolean enable, int snapPage, boolean animated) { 1757 State finalState = Workspace.State.OVERVIEW; 1758 if (!enable) { 1759 finalState = Workspace.State.NORMAL; 1760 } 1761 1762 Animator workspaceAnim = getChangeStateAnimation(finalState, animated, 0, snapPage); 1763 if (workspaceAnim != null) { 1764 onTransitionPrepare(); 1765 workspaceAnim.addListener(new AnimatorListenerAdapter() { 1766 @Override 1767 public void onAnimationEnd(Animator arg0) { 1768 onTransitionEnd(); 1769 } 1770 }); 1771 workspaceAnim.start(); 1772 } 1773 } 1774 1775 Animator getChangeStateAnimation(final State state, boolean animated, int delay, int snapPage) { 1776 if (mState == state) { 1777 return null; 1778 } 1779 1780 // Initialize animation arrays for the first time if necessary 1781 initAnimationArrays(); 1782 1783 AnimatorSet anim = animated ? LauncherAnimUtils.createAnimatorSet() : null; 1784 1785 final State oldState = mState; 1786 final boolean oldStateIsNormal = (oldState == State.NORMAL); 1787 final boolean oldStateIsSpringLoaded = (oldState == State.SPRING_LOADED); 1788 final boolean oldStateIsSmall = (oldState == State.SMALL); 1789 final boolean oldStateIsOverview = (oldState == State.OVERVIEW); 1790 mState = state; 1791 final boolean stateIsNormal = (state == State.NORMAL); 1792 final boolean stateIsSpringLoaded = (state == State.SPRING_LOADED); 1793 final boolean stateIsSmall = (state == State.SMALL); 1794 final boolean stateIsOverview = (state == State.OVERVIEW); 1795 float finalBackgroundAlpha = stateIsSpringLoaded ? 1.0f : 0f; 1796 float finalHotseatAndPageIndicatorAlpha = (stateIsOverview || stateIsSmall) ? 0f : 1f; 1797 float finalOverviewPanelAlpha = stateIsOverview ? 1f : 0f; 1798 1799 boolean zoomIn = true; 1800 mNewScale = 1.0f; 1801 1802 if (oldStateIsOverview) { 1803 disableFreeScroll(snapPage); 1804 } else if (stateIsOverview) { 1805 enableFreeScroll(); 1806 } 1807 1808 if (state != State.NORMAL) { 1809 if (stateIsSpringLoaded) { 1810 mNewScale = mSpringLoadedShrinkFactor; 1811 } else if (stateIsOverview) { 1812 mNewScale = mOverviewModeShrinkFactor; 1813 } else if (stateIsSmall){ 1814 mNewScale = mOverviewModeShrinkFactor - 0.1f; 1815 } 1816 if (oldStateIsNormal && stateIsSmall) { 1817 zoomIn = false; 1818 updateChildrenLayersEnabled(false); 1819 } else { 1820 finalBackgroundAlpha = 1.0f; 1821 } 1822 } 1823 final int duration = zoomIn ? 1824 getResources().getInteger(R.integer.config_workspaceUnshrinkTime) : 1825 getResources().getInteger(R.integer.config_appsCustomizeWorkspaceShrinkTime); 1826 for (int i = 0; i < getChildCount(); i++) { 1827 final CellLayout cl = (CellLayout) getChildAt(i); 1828 float finalAlpha = (!mWorkspaceFadeInAdjacentScreens || stateIsSpringLoaded || 1829 (i == mCurrentPage)) ? 1f : 0f; 1830 float currentAlpha = cl.getShortcutsAndWidgets().getAlpha(); 1831 float initialAlpha = currentAlpha; 1832 1833 // Determine the pages alpha during the state transition 1834 if ((oldStateIsSmall && stateIsNormal) || 1835 (oldStateIsNormal && stateIsSmall)) { 1836 // To/from workspace - only show the current page unless the transition is not 1837 // animated and the animation end callback below doesn't run; 1838 // or, if we're in spring-loaded mode 1839 if (i == mCurrentPage || !animated || oldStateIsSpringLoaded) { 1840 finalAlpha = 1f; 1841 } else { 1842 initialAlpha = 0f; 1843 finalAlpha = 0f; 1844 } 1845 } 1846 1847 mOldAlphas[i] = initialAlpha; 1848 mNewAlphas[i] = finalAlpha; 1849 if (animated) { 1850 mOldBackgroundAlphas[i] = cl.getBackgroundAlpha(); 1851 mNewBackgroundAlphas[i] = finalBackgroundAlpha; 1852 } else { 1853 setScaleX(mNewScale); 1854 setScaleY(mNewScale); 1855 cl.setBackgroundAlpha(finalBackgroundAlpha); 1856 cl.setShortcutAndWidgetAlpha(finalAlpha); 1857 } 1858 } 1859 1860 if (animated) { 1861 LauncherViewPropertyAnimator scale = new LauncherViewPropertyAnimator(this); 1862 scale.scaleX(mNewScale) 1863 .scaleY(mNewScale) 1864 .setInterpolator(mZoomInInterpolator); 1865 anim.play(scale); 1866 for (int index = 0; index < getChildCount(); index++) { 1867 final int i = index; 1868 final CellLayout cl = (CellLayout) getChildAt(i); 1869 float currentAlpha = cl.getShortcutsAndWidgets().getAlpha(); 1870 if (mOldAlphas[i] == 0 && mNewAlphas[i] == 0) { 1871 cl.setBackgroundAlpha(mNewBackgroundAlphas[i]); 1872 cl.setShortcutAndWidgetAlpha(mNewAlphas[i]); 1873 } else { 1874 1875 if (mOldAlphas[i] != mNewAlphas[i] || currentAlpha != mNewAlphas[i]) { 1876 LauncherViewPropertyAnimator alphaAnim = 1877 new LauncherViewPropertyAnimator(cl.getShortcutsAndWidgets()); 1878 alphaAnim.alpha(mNewAlphas[i]) 1879 .setDuration(duration) 1880 .setInterpolator(mZoomInInterpolator); 1881 anim.play(alphaAnim); 1882 } 1883 if (mOldBackgroundAlphas[i] != 0 || 1884 mNewBackgroundAlphas[i] != 0) { 1885 ValueAnimator bgAnim = 1886 LauncherAnimUtils.ofFloat(cl, 0f, 1f).setDuration(duration); 1887 bgAnim.setInterpolator(mZoomInInterpolator); 1888 bgAnim.addUpdateListener(new LauncherAnimatorUpdateListener() { 1889 public void onAnimationUpdate(float a, float b) { 1890 cl.setBackgroundAlpha( 1891 a * mOldBackgroundAlphas[i] + 1892 b * mNewBackgroundAlphas[i]); 1893 } 1894 }); 1895 anim.play(bgAnim); 1896 } 1897 } 1898 } 1899 ObjectAnimator pageIndicatorAlpha = null; 1900 if (getPageIndicator() != null) { 1901 pageIndicatorAlpha = ObjectAnimator.ofFloat(getPageIndicator(), "alpha", 1902 finalHotseatAndPageIndicatorAlpha); 1903 } 1904 ObjectAnimator hotseatAlpha = ObjectAnimator.ofFloat(mLauncher.getHotseat(), "alpha", 1905 finalHotseatAndPageIndicatorAlpha); 1906 ObjectAnimator overviewPanelAlpha = ObjectAnimator.ofFloat(mLauncher.getOverviewPanel(), 1907 "alpha", finalOverviewPanelAlpha); 1908 overviewPanelAlpha.addUpdateListener(new AlphaUpdateListener( 1909 mLauncher.getOverviewPanel())); 1910 hotseatAlpha.addUpdateListener(new AlphaUpdateListener(mLauncher.getHotseat())); 1911 if (getPageIndicator() != null) { 1912 pageIndicatorAlpha.addUpdateListener(new AlphaUpdateListener(getPageIndicator())); 1913 } 1914 anim.play(overviewPanelAlpha); 1915 anim.play(hotseatAlpha); 1916 anim.play(pageIndicatorAlpha); 1917 anim.setStartDelay(delay); 1918 } else { 1919 mLauncher.getOverviewPanel().setAlpha(finalOverviewPanelAlpha); 1920 AlphaUpdateListener.updateVisibility(mLauncher.getOverviewPanel()); 1921 mLauncher.getHotseat().setAlpha(finalHotseatAndPageIndicatorAlpha); 1922 AlphaUpdateListener.updateVisibility(mLauncher.getHotseat()); 1923 if (getPageIndicator() != null) { 1924 getPageIndicator().setAlpha(finalHotseatAndPageIndicatorAlpha); 1925 AlphaUpdateListener.updateVisibility(getPageIndicator()); 1926 } 1927 } 1928 1929 if (stateIsSpringLoaded) { 1930 // Right now we're covered by Apps Customize 1931 // Show the background gradient immediately, so the gradient will 1932 // be showing once AppsCustomize disappears 1933 animateBackgroundGradient(getResources().getInteger( 1934 R.integer.config_appsCustomizeSpringLoadedBgAlpha) / 100f, false); 1935 } else { 1936 // Fade the background gradient away 1937 animateBackgroundGradient(0f, true); 1938 } 1939 return anim; 1940 } 1941 1942 static class AlphaUpdateListener implements AnimatorUpdateListener { 1943 View view; 1944 public AlphaUpdateListener(View v) { 1945 view = v; 1946 } 1947 1948 @Override 1949 public void onAnimationUpdate(ValueAnimator arg0) { 1950 updateVisibility(view); 1951 } 1952 1953 public static void updateVisibility(View view) { 1954 if (view.getAlpha() < ALPHA_CUTOFF_THRESHOLD && view.getVisibility() != INVISIBLE) { 1955 view.setVisibility(INVISIBLE); 1956 } else if (view.getAlpha() > ALPHA_CUTOFF_THRESHOLD 1957 && view.getVisibility() != VISIBLE) { 1958 view.setVisibility(VISIBLE); 1959 } 1960 } 1961 } 1962 1963 @Override 1964 public void onLauncherTransitionPrepare(Launcher l, boolean animated, boolean toWorkspace) { 1965 onTransitionPrepare(); 1966 } 1967 1968 @Override 1969 public void onLauncherTransitionStart(Launcher l, boolean animated, boolean toWorkspace) { 1970 } 1971 1972 @Override 1973 public void onLauncherTransitionStep(Launcher l, float t) { 1974 mTransitionProgress = t; 1975 } 1976 1977 @Override 1978 public void onLauncherTransitionEnd(Launcher l, boolean animated, boolean toWorkspace) { 1979 onTransitionEnd(); 1980 } 1981 1982 private void onTransitionPrepare() { 1983 mIsSwitchingState = true; 1984 updateChildrenLayersEnabled(false); 1985 if (mState != Workspace.State.NORMAL) { 1986 if (hasCustomContent()) { 1987 mWorkspaceScreens.get(CUSTOM_CONTENT_SCREEN_ID).setVisibility(INVISIBLE); 1988 } 1989 } 1990 } 1991 1992 private void onTransitionEnd() { 1993 mIsSwitchingState = false; 1994 updateChildrenLayersEnabled(false); 1995 // The code in getChangeStateAnimation to determine initialAlpha and finalAlpha will ensure 1996 // ensure that only the current page is visible during (and subsequently, after) the 1997 // transition animation. If fade adjacent pages is disabled, then re-enable the page 1998 // visibility after the transition animation. 1999 if (!mWorkspaceFadeInAdjacentScreens) { 2000 for (int i = 0; i < getChildCount(); i++) { 2001 final CellLayout cl = (CellLayout) getChildAt(i); 2002 cl.setShortcutAndWidgetAlpha(1f); 2003 } 2004 } 2005 if (mState == Workspace.State.NORMAL) { 2006 if (hasCustomContent()) { 2007 mWorkspaceScreens.get(CUSTOM_CONTENT_SCREEN_ID).setVisibility(VISIBLE); 2008 } 2009 } 2010 } 2011 2012 @Override 2013 public View getContent() { 2014 return this; 2015 } 2016 2017 /** 2018 * Draw the View v into the given Canvas. 2019 * 2020 * @param v the view to draw 2021 * @param destCanvas the canvas to draw on 2022 * @param padding the horizontal and vertical padding to use when drawing 2023 */ 2024 private void drawDragView(View v, Canvas destCanvas, int padding, boolean pruneToDrawable) { 2025 final Rect clipRect = mTempRect; 2026 v.getDrawingRect(clipRect); 2027 2028 boolean textVisible = false; 2029 2030 destCanvas.save(); 2031 if (v instanceof TextView && pruneToDrawable) { 2032 Drawable d = ((TextView) v).getCompoundDrawables()[1]; 2033 clipRect.set(0, 0, d.getIntrinsicWidth() + padding, d.getIntrinsicHeight() + padding); 2034 destCanvas.translate(padding / 2, padding / 2); 2035 d.draw(destCanvas); 2036 } else { 2037 if (v instanceof FolderIcon) { 2038 // For FolderIcons the text can bleed into the icon area, and so we need to 2039 // hide the text completely (which can't be achieved by clipping). 2040 if (((FolderIcon) v).getTextVisible()) { 2041 ((FolderIcon) v).setTextVisible(false); 2042 textVisible = true; 2043 } 2044 } else if (v instanceof BubbleTextView) { 2045 final BubbleTextView tv = (BubbleTextView) v; 2046 clipRect.bottom = tv.getExtendedPaddingTop() - (int) BubbleTextView.PADDING_V + 2047 tv.getLayout().getLineTop(0); 2048 } else if (v instanceof TextView) { 2049 final TextView tv = (TextView) v; 2050 clipRect.bottom = tv.getExtendedPaddingTop() - tv.getCompoundDrawablePadding() + 2051 tv.getLayout().getLineTop(0); 2052 } 2053 destCanvas.translate(-v.getScrollX() + padding / 2, -v.getScrollY() + padding / 2); 2054 destCanvas.clipRect(clipRect, Op.REPLACE); 2055 v.draw(destCanvas); 2056 2057 // Restore text visibility of FolderIcon if necessary 2058 if (textVisible) { 2059 ((FolderIcon) v).setTextVisible(true); 2060 } 2061 } 2062 destCanvas.restore(); 2063 } 2064 2065 /** 2066 * Returns a new bitmap to show when the given View is being dragged around. 2067 * Responsibility for the bitmap is transferred to the caller. 2068 */ 2069 public Bitmap createDragBitmap(View v, Canvas canvas, int padding) { 2070 Bitmap b; 2071 2072 if (v instanceof TextView) { 2073 Drawable d = ((TextView) v).getCompoundDrawables()[1]; 2074 b = Bitmap.createBitmap(d.getIntrinsicWidth() + padding, 2075 d.getIntrinsicHeight() + padding, Bitmap.Config.ARGB_8888); 2076 } else { 2077 b = Bitmap.createBitmap( 2078 v.getWidth() + padding, v.getHeight() + padding, Bitmap.Config.ARGB_8888); 2079 } 2080 2081 canvas.setBitmap(b); 2082 drawDragView(v, canvas, padding, true); 2083 canvas.setBitmap(null); 2084 2085 return b; 2086 } 2087 2088 /** 2089 * Returns a new bitmap to be used as the object outline, e.g. to visualize the drop location. 2090 * Responsibility for the bitmap is transferred to the caller. 2091 */ 2092 private Bitmap createDragOutline(View v, Canvas canvas, int padding) { 2093 final int outlineColor = getResources().getColor(android.R.color.holo_blue_light); 2094 final Bitmap b = Bitmap.createBitmap( 2095 v.getWidth() + padding, v.getHeight() + padding, Bitmap.Config.ARGB_8888); 2096 2097 canvas.setBitmap(b); 2098 drawDragView(v, canvas, padding, true); 2099 mOutlineHelper.applyMediumExpensiveOutlineWithBlur(b, canvas, outlineColor, outlineColor); 2100 canvas.setBitmap(null); 2101 return b; 2102 } 2103 2104 /** 2105 * Returns a new bitmap to be used as the object outline, e.g. to visualize the drop location. 2106 * Responsibility for the bitmap is transferred to the caller. 2107 */ 2108 private Bitmap createDragOutline(Bitmap orig, Canvas canvas, int padding, int w, int h, 2109 boolean clipAlpha) { 2110 final int outlineColor = getResources().getColor(android.R.color.holo_blue_light); 2111 final Bitmap b = Bitmap.createBitmap(w, h, Bitmap.Config.ARGB_8888); 2112 canvas.setBitmap(b); 2113 2114 Rect src = new Rect(0, 0, orig.getWidth(), orig.getHeight()); 2115 float scaleFactor = Math.min((w - padding) / (float) orig.getWidth(), 2116 (h - padding) / (float) orig.getHeight()); 2117 int scaledWidth = (int) (scaleFactor * orig.getWidth()); 2118 int scaledHeight = (int) (scaleFactor * orig.getHeight()); 2119 Rect dst = new Rect(0, 0, scaledWidth, scaledHeight); 2120 2121 // center the image 2122 dst.offset((w - scaledWidth) / 2, (h - scaledHeight) / 2); 2123 2124 canvas.drawBitmap(orig, src, dst, null); 2125 mOutlineHelper.applyMediumExpensiveOutlineWithBlur(b, canvas, outlineColor, outlineColor, 2126 clipAlpha); 2127 canvas.setBitmap(null); 2128 2129 return b; 2130 } 2131 2132 void startDrag(CellLayout.CellInfo cellInfo) { 2133 View child = cellInfo.cell; 2134 2135 // Make sure the drag was started by a long press as opposed to a long click. 2136 if (!child.isInTouchMode()) { 2137 return; 2138 } 2139 2140 mDragInfo = cellInfo; 2141 child.setVisibility(INVISIBLE); 2142 CellLayout layout = (CellLayout) child.getParent().getParent(); 2143 layout.prepareChildForDrag(child); 2144 2145 child.clearFocus(); 2146 child.setPressed(false); 2147 2148 final Canvas canvas = new Canvas(); 2149 2150 // The outline is used to visualize where the item will land if dropped 2151 mDragOutline = createDragOutline(child, canvas, DRAG_BITMAP_PADDING); 2152 beginDragShared(child, this); 2153 } 2154 2155 public void beginDragShared(View child, DragSource source) { 2156 // The drag bitmap follows the touch point around on the screen 2157 final Bitmap b = createDragBitmap(child, new Canvas(), DRAG_BITMAP_PADDING); 2158 2159 final int bmpWidth = b.getWidth(); 2160 final int bmpHeight = b.getHeight(); 2161 2162 float scale = mLauncher.getDragLayer().getLocationInDragLayer(child, mTempXY); 2163 int dragLayerX = 2164 Math.round(mTempXY[0] - (bmpWidth - scale * child.getWidth()) / 2); 2165 int dragLayerY = 2166 Math.round(mTempXY[1] - (bmpHeight - scale * bmpHeight) / 2 2167 - DRAG_BITMAP_PADDING / 2); 2168 2169 LauncherAppState app = LauncherAppState.getInstance(); 2170 DeviceProfile grid = app.getDynamicGrid().getDeviceProfile(); 2171 Point dragVisualizeOffset = null; 2172 Rect dragRect = null; 2173 if (child instanceof BubbleTextView || child instanceof PagedViewIcon) { 2174 int iconSize = grid.iconSizePx; 2175 int top = child.getPaddingTop(); 2176 int left = (bmpWidth - iconSize) / 2; 2177 int right = left + iconSize; 2178 int bottom = top + iconSize; 2179 dragLayerY += top; 2180 // Note: The drag region is used to calculate drag layer offsets, but the 2181 // dragVisualizeOffset in addition to the dragRect (the size) to position the outline. 2182 dragVisualizeOffset = new Point(-DRAG_BITMAP_PADDING / 2, DRAG_BITMAP_PADDING / 2); 2183 dragRect = new Rect(left, top, right, bottom); 2184 } else if (child instanceof FolderIcon) { 2185 int previewSize = grid.folderIconSizePx; 2186 dragRect = new Rect(0, child.getPaddingTop(), child.getWidth(), previewSize); 2187 } 2188 2189 // Clear the pressed state if necessary 2190 if (child instanceof BubbleTextView) { 2191 BubbleTextView icon = (BubbleTextView) child; 2192 icon.clearPressedOrFocusedBackground(); 2193 } 2194 2195 mDragController.startDrag(b, dragLayerX, dragLayerY, source, child.getTag(), 2196 DragController.DRAG_ACTION_MOVE, dragVisualizeOffset, dragRect, scale); 2197 2198 if (child.getParent() instanceof ShortcutAndWidgetContainer) { 2199 mDragSourceInternal = (ShortcutAndWidgetContainer) child.getParent(); 2200 } 2201 2202 b.recycle(); 2203 } 2204 2205 void addApplicationShortcut(ShortcutInfo info, CellLayout target, long container, long screenId, 2206 int cellX, int cellY, boolean insertAtFirst, int intersectX, int intersectY) { 2207 View view = mLauncher.createShortcut(R.layout.application, target, (ShortcutInfo) info); 2208 2209 final int[] cellXY = new int[2]; 2210 target.findCellForSpanThatIntersects(cellXY, 1, 1, intersectX, intersectY); 2211 addInScreen(view, container, screenId, cellXY[0], cellXY[1], 1, 1, insertAtFirst); 2212 2213 LauncherModel.addOrMoveItemInDatabase(mLauncher, info, container, screenId, cellXY[0], 2214 cellXY[1]); 2215 } 2216 2217 public boolean transitionStateShouldAllowDrop() { 2218 return ((!isSwitchingState() || mTransitionProgress > 0.5f) && mState != State.SMALL); 2219 } 2220 2221 /** 2222 * {@inheritDoc} 2223 */ 2224 public boolean acceptDrop(DragObject d) { 2225 // If it's an external drop (e.g. from All Apps), check if it should be accepted 2226 CellLayout dropTargetLayout = mDropToLayout; 2227 if (d.dragSource != this) { 2228 // Don't accept the drop if we're not over a screen at time of drop 2229 if (dropTargetLayout == null) { 2230 return false; 2231 } 2232 if (!transitionStateShouldAllowDrop()) return false; 2233 2234 mDragViewVisualCenter = getDragViewVisualCenter(d.x, d.y, d.xOffset, d.yOffset, 2235 d.dragView, mDragViewVisualCenter); 2236 2237 // We want the point to be mapped to the dragTarget. 2238 if (mLauncher.isHotseatLayout(dropTargetLayout)) { 2239 mapPointFromSelfToHotseatLayout(mLauncher.getHotseat(), mDragViewVisualCenter); 2240 } else { 2241 mapPointFromSelfToChild(dropTargetLayout, mDragViewVisualCenter, null); 2242 } 2243 2244 int spanX = 1; 2245 int spanY = 1; 2246 if (mDragInfo != null) { 2247 final CellLayout.CellInfo dragCellInfo = mDragInfo; 2248 spanX = dragCellInfo.spanX; 2249 spanY = dragCellInfo.spanY; 2250 } else { 2251 final ItemInfo dragInfo = (ItemInfo) d.dragInfo; 2252 spanX = dragInfo.spanX; 2253 spanY = dragInfo.spanY; 2254 } 2255 2256 int minSpanX = spanX; 2257 int minSpanY = spanY; 2258 if (d.dragInfo instanceof PendingAddWidgetInfo) { 2259 minSpanX = ((PendingAddWidgetInfo) d.dragInfo).minSpanX; 2260 minSpanY = ((PendingAddWidgetInfo) d.dragInfo).minSpanY; 2261 } 2262 2263 mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], 2264 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, dropTargetLayout, 2265 mTargetCell); 2266 float distance = dropTargetLayout.getDistanceFromCell(mDragViewVisualCenter[0], 2267 mDragViewVisualCenter[1], mTargetCell); 2268 if (willCreateUserFolder((ItemInfo) d.dragInfo, dropTargetLayout, 2269 mTargetCell, distance, true)) { 2270 return true; 2271 } 2272 if (willAddToExistingUserFolder((ItemInfo) d.dragInfo, dropTargetLayout, 2273 mTargetCell, distance)) { 2274 return true; 2275 } 2276 2277 int[] resultSpan = new int[2]; 2278 mTargetCell = dropTargetLayout.createArea((int) mDragViewVisualCenter[0], 2279 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, spanX, spanY, 2280 null, mTargetCell, resultSpan, CellLayout.MODE_ACCEPT_DROP); 2281 boolean foundCell = mTargetCell[0] >= 0 && mTargetCell[1] >= 0; 2282 2283 // Don't accept the drop if there's no room for the item 2284 if (!foundCell) { 2285 // Don't show the message if we are dropping on the AllApps button and the hotseat 2286 // is full 2287 boolean isHotseat = mLauncher.isHotseatLayout(dropTargetLayout); 2288 if (mTargetCell != null && isHotseat) { 2289 Hotseat hotseat = mLauncher.getHotseat(); 2290 if (hotseat.isAllAppsButtonRank( 2291 hotseat.getOrderInHotseat(mTargetCell[0], mTargetCell[1]))) { 2292 return false; 2293 } 2294 } 2295 2296 mLauncher.showOutOfSpaceMessage(isHotseat); 2297 return false; 2298 } 2299 } 2300 2301 long screenId = getIdForScreen(dropTargetLayout); 2302 if (screenId == EXTRA_EMPTY_SCREEN_ID) { 2303 commitExtraEmptyScreen(); 2304 } 2305 2306 return true; 2307 } 2308 2309 boolean willCreateUserFolder(ItemInfo info, CellLayout target, int[] targetCell, float 2310 distance, boolean considerTimeout) { 2311 if (distance > mMaxDistanceForFolderCreation) return false; 2312 View dropOverView = target.getChildAt(targetCell[0], targetCell[1]); 2313 2314 if (dropOverView != null) { 2315 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) dropOverView.getLayoutParams(); 2316 if (lp.useTmpCoords && (lp.tmpCellX != lp.cellX || lp.tmpCellY != lp.tmpCellY)) { 2317 return false; 2318 } 2319 } 2320 2321 boolean hasntMoved = false; 2322 if (mDragInfo != null) { 2323 hasntMoved = dropOverView == mDragInfo.cell; 2324 } 2325 2326 if (dropOverView == null || hasntMoved || (considerTimeout && !mCreateUserFolderOnDrop)) { 2327 return false; 2328 } 2329 2330 boolean aboveShortcut = (dropOverView.getTag() instanceof ShortcutInfo); 2331 boolean willBecomeShortcut = 2332 (info.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPLICATION || 2333 info.itemType == LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT); 2334 2335 return (aboveShortcut && willBecomeShortcut); 2336 } 2337 2338 boolean willAddToExistingUserFolder(Object dragInfo, CellLayout target, int[] targetCell, 2339 float distance) { 2340 if (distance > mMaxDistanceForFolderCreation) return false; 2341 View dropOverView = target.getChildAt(targetCell[0], targetCell[1]); 2342 2343 if (dropOverView != null) { 2344 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) dropOverView.getLayoutParams(); 2345 if (lp.useTmpCoords && (lp.tmpCellX != lp.cellX || lp.tmpCellY != lp.tmpCellY)) { 2346 return false; 2347 } 2348 } 2349 2350 if (dropOverView instanceof FolderIcon) { 2351 FolderIcon fi = (FolderIcon) dropOverView; 2352 if (fi.acceptDrop(dragInfo)) { 2353 return true; 2354 } 2355 } 2356 return false; 2357 } 2358 2359 boolean createUserFolderIfNecessary(View newView, long container, CellLayout target, 2360 int[] targetCell, float distance, boolean external, DragView dragView, 2361 Runnable postAnimationRunnable) { 2362 if (distance > mMaxDistanceForFolderCreation) return false; 2363 View v = target.getChildAt(targetCell[0], targetCell[1]); 2364 2365 boolean hasntMoved = false; 2366 if (mDragInfo != null) { 2367 CellLayout cellParent = getParentCellLayoutForView(mDragInfo.cell); 2368 hasntMoved = (mDragInfo.cellX == targetCell[0] && 2369 mDragInfo.cellY == targetCell[1]) && (cellParent == target); 2370 } 2371 2372 if (v == null || hasntMoved || !mCreateUserFolderOnDrop) return false; 2373 mCreateUserFolderOnDrop = false; 2374 final long screenId = (targetCell == null) ? mDragInfo.screenId : getIdForScreen(target); 2375 2376 boolean aboveShortcut = (v.getTag() instanceof ShortcutInfo); 2377 boolean willBecomeShortcut = (newView.getTag() instanceof ShortcutInfo); 2378 2379 if (aboveShortcut && willBecomeShortcut) { 2380 ShortcutInfo sourceInfo = (ShortcutInfo) newView.getTag(); 2381 ShortcutInfo destInfo = (ShortcutInfo) v.getTag(); 2382 // if the drag started here, we need to remove it from the workspace 2383 if (!external) { 2384 getParentCellLayoutForView(mDragInfo.cell).removeView(mDragInfo.cell); 2385 } 2386 2387 Rect folderLocation = new Rect(); 2388 float scale = mLauncher.getDragLayer().getDescendantRectRelativeToSelf(v, folderLocation); 2389 target.removeView(v); 2390 2391 FolderIcon fi = 2392 mLauncher.addFolder(target, container, screenId, targetCell[0], targetCell[1]); 2393 destInfo.cellX = -1; 2394 destInfo.cellY = -1; 2395 sourceInfo.cellX = -1; 2396 sourceInfo.cellY = -1; 2397 2398 // If the dragView is null, we can't animate 2399 boolean animate = dragView != null; 2400 if (animate) { 2401 fi.performCreateAnimation(destInfo, v, sourceInfo, dragView, folderLocation, scale, 2402 postAnimationRunnable); 2403 } else { 2404 fi.addItem(destInfo); 2405 fi.addItem(sourceInfo); 2406 } 2407 return true; 2408 } 2409 return false; 2410 } 2411 2412 boolean addToExistingFolderIfNecessary(View newView, CellLayout target, int[] targetCell, 2413 float distance, DragObject d, boolean external) { 2414 if (distance > mMaxDistanceForFolderCreation) return false; 2415 2416 View dropOverView = target.getChildAt(targetCell[0], targetCell[1]); 2417 if (!mAddToExistingFolderOnDrop) return false; 2418 mAddToExistingFolderOnDrop = false; 2419 2420 if (dropOverView instanceof FolderIcon) { 2421 FolderIcon fi = (FolderIcon) dropOverView; 2422 if (fi.acceptDrop(d.dragInfo)) { 2423 fi.onDrop(d); 2424 2425 // if the drag started here, we need to remove it from the workspace 2426 if (!external) { 2427 getParentCellLayoutForView(mDragInfo.cell).removeView(mDragInfo.cell); 2428 } 2429 return true; 2430 } 2431 } 2432 return false; 2433 } 2434 2435 public void onDrop(final DragObject d) { 2436 mDragViewVisualCenter = getDragViewVisualCenter(d.x, d.y, d.xOffset, d.yOffset, d.dragView, 2437 mDragViewVisualCenter); 2438 2439 CellLayout dropTargetLayout = mDropToLayout; 2440 2441 // We want the point to be mapped to the dragTarget. 2442 if (dropTargetLayout != null) { 2443 if (mLauncher.isHotseatLayout(dropTargetLayout)) { 2444 mapPointFromSelfToHotseatLayout(mLauncher.getHotseat(), mDragViewVisualCenter); 2445 } else { 2446 mapPointFromSelfToChild(dropTargetLayout, mDragViewVisualCenter, null); 2447 } 2448 } 2449 2450 int snapScreen = -1; 2451 boolean resizeOnDrop = false; 2452 if (d.dragSource != this) { 2453 final int[] touchXY = new int[] { (int) mDragViewVisualCenter[0], 2454 (int) mDragViewVisualCenter[1] }; 2455 onDropExternal(touchXY, d.dragInfo, dropTargetLayout, false, d); 2456 } else if (mDragInfo != null) { 2457 final View cell = mDragInfo.cell; 2458 2459 Runnable resizeRunnable = null; 2460 if (dropTargetLayout != null && !d.cancelled) { 2461 // Move internally 2462 boolean hasMovedLayouts = (getParentCellLayoutForView(cell) != dropTargetLayout); 2463 boolean hasMovedIntoHotseat = mLauncher.isHotseatLayout(dropTargetLayout); 2464 long container = hasMovedIntoHotseat ? 2465 LauncherSettings.Favorites.CONTAINER_HOTSEAT : 2466 LauncherSettings.Favorites.CONTAINER_DESKTOP; 2467 long screenId = (mTargetCell[0] < 0) ? 2468 mDragInfo.screenId : getIdForScreen(dropTargetLayout); 2469 int spanX = mDragInfo != null ? mDragInfo.spanX : 1; 2470 int spanY = mDragInfo != null ? mDragInfo.spanY : 1; 2471 // First we find the cell nearest to point at which the item is 2472 // dropped, without any consideration to whether there is an item there. 2473 2474 mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], (int) 2475 mDragViewVisualCenter[1], spanX, spanY, dropTargetLayout, mTargetCell); 2476 float distance = dropTargetLayout.getDistanceFromCell(mDragViewVisualCenter[0], 2477 mDragViewVisualCenter[1], mTargetCell); 2478 2479 // If the item being dropped is a shortcut and the nearest drop 2480 // cell also contains a shortcut, then create a folder with the two shortcuts. 2481 if (!mInScrollArea && createUserFolderIfNecessary(cell, container, 2482 dropTargetLayout, mTargetCell, distance, false, d.dragView, null)) { 2483 stripEmptyScreens(); 2484 return; 2485 } 2486 2487 if (addToExistingFolderIfNecessary(cell, dropTargetLayout, mTargetCell, 2488 distance, d, false)) { 2489 stripEmptyScreens(); 2490 return; 2491 } 2492 2493 // Aside from the special case where we're dropping a shortcut onto a shortcut, 2494 // we need to find the nearest cell location that is vacant 2495 ItemInfo item = (ItemInfo) d.dragInfo; 2496 int minSpanX = item.spanX; 2497 int minSpanY = item.spanY; 2498 if (item.minSpanX > 0 && item.minSpanY > 0) { 2499 minSpanX = item.minSpanX; 2500 minSpanY = item.minSpanY; 2501 } 2502 2503 int[] resultSpan = new int[2]; 2504 mTargetCell = dropTargetLayout.createArea((int) mDragViewVisualCenter[0], 2505 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, spanX, spanY, cell, 2506 mTargetCell, resultSpan, CellLayout.MODE_ON_DROP); 2507 2508 boolean foundCell = mTargetCell[0] >= 0 && mTargetCell[1] >= 0; 2509 2510 // if the widget resizes on drop 2511 if (foundCell && (cell instanceof AppWidgetHostView) && 2512 (resultSpan[0] != item.spanX || resultSpan[1] != item.spanY)) { 2513 resizeOnDrop = true; 2514 item.spanX = resultSpan[0]; 2515 item.spanY = resultSpan[1]; 2516 AppWidgetHostView awhv = (AppWidgetHostView) cell; 2517 AppWidgetResizeFrame.updateWidgetSizeRanges(awhv, mLauncher, resultSpan[0], 2518 resultSpan[1]); 2519 } 2520 2521 if (getScreenIdForPageIndex(mCurrentPage) != screenId && !hasMovedIntoHotseat) { 2522 snapScreen = getPageIndexForScreenId(screenId); 2523 snapToPage(snapScreen); 2524 } 2525 2526 if (foundCell) { 2527 final ItemInfo info = (ItemInfo) cell.getTag(); 2528 if (hasMovedLayouts) { 2529 // Reparent the view 2530 getParentCellLayoutForView(cell).removeView(cell); 2531 addInScreen(cell, container, screenId, mTargetCell[0], mTargetCell[1], 2532 info.spanX, info.spanY); 2533 } 2534 2535 // update the item's position after drop 2536 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) cell.getLayoutParams(); 2537 lp.cellX = lp.tmpCellX = mTargetCell[0]; 2538 lp.cellY = lp.tmpCellY = mTargetCell[1]; 2539 lp.cellHSpan = item.spanX; 2540 lp.cellVSpan = item.spanY; 2541 lp.isLockedToGrid = true; 2542 cell.setId(LauncherModel.getCellLayoutChildId(container, mDragInfo.screenId, 2543 mTargetCell[0], mTargetCell[1], mDragInfo.spanX, mDragInfo.spanY)); 2544 2545 if (container != LauncherSettings.Favorites.CONTAINER_HOTSEAT && 2546 cell instanceof LauncherAppWidgetHostView) { 2547 final CellLayout cellLayout = dropTargetLayout; 2548 // We post this call so that the widget has a chance to be placed 2549 // in its final location 2550 2551 final LauncherAppWidgetHostView hostView = (LauncherAppWidgetHostView) cell; 2552 AppWidgetProviderInfo pinfo = hostView.getAppWidgetInfo(); 2553 if (pinfo != null && 2554 pinfo.resizeMode != AppWidgetProviderInfo.RESIZE_NONE) { 2555 final Runnable addResizeFrame = new Runnable() { 2556 public void run() { 2557 DragLayer dragLayer = mLauncher.getDragLayer(); 2558 dragLayer.addResizeFrame(info, hostView, cellLayout); 2559 } 2560 }; 2561 resizeRunnable = (new Runnable() { 2562 public void run() { 2563 if (!isPageMoving()) { 2564 addResizeFrame.run(); 2565 } else { 2566 mDelayedResizeRunnable = addResizeFrame; 2567 } 2568 } 2569 }); 2570 } 2571 } 2572 2573 LauncherModel.moveItemInDatabase(mLauncher, info, container, screenId, lp.cellX, 2574 lp.cellY); 2575 } else { 2576 // If we can't find a drop location, we return the item to its original position 2577 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) cell.getLayoutParams(); 2578 mTargetCell[0] = lp.cellX; 2579 mTargetCell[1] = lp.cellY; 2580 CellLayout layout = (CellLayout) cell.getParent().getParent(); 2581 layout.markCellsAsOccupiedForView(cell); 2582 } 2583 } 2584 2585 final CellLayout parent = (CellLayout) cell.getParent().getParent(); 2586 final Runnable finalResizeRunnable = resizeRunnable; 2587 // Prepare it to be animated into its new position 2588 // This must be called after the view has been re-parented 2589 final Runnable onCompleteRunnable = new Runnable() { 2590 @Override 2591 public void run() { 2592 mAnimatingViewIntoPlace = false; 2593 updateChildrenLayersEnabled(false); 2594 if (finalResizeRunnable != null) { 2595 finalResizeRunnable.run(); 2596 } 2597 stripEmptyScreens(); 2598 } 2599 }; 2600 mAnimatingViewIntoPlace = true; 2601 if (d.dragView.hasDrawn()) { 2602 final ItemInfo info = (ItemInfo) cell.getTag(); 2603 if (info.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET) { 2604 int animationType = resizeOnDrop ? ANIMATE_INTO_POSITION_AND_RESIZE : 2605 ANIMATE_INTO_POSITION_AND_DISAPPEAR; 2606 animateWidgetDrop(info, parent, d.dragView, 2607 onCompleteRunnable, animationType, cell, false); 2608 } else { 2609 int duration = snapScreen < 0 ? -1 : ADJACENT_SCREEN_DROP_DURATION; 2610 mLauncher.getDragLayer().animateViewIntoPosition(d.dragView, cell, duration, 2611 onCompleteRunnable, this); 2612 } 2613 } else { 2614 d.deferDragViewCleanupPostAnimation = false; 2615 cell.setVisibility(VISIBLE); 2616 } 2617 parent.onDropChild(cell); 2618 } 2619 } 2620 2621 public void setFinalScrollForPageChange(int pageIndex) { 2622 CellLayout cl = (CellLayout) getChildAt(pageIndex); 2623 if (cl != null) { 2624 mSavedScrollX = getScrollX(); 2625 mSavedTranslationX = cl.getTranslationX(); 2626 mSavedRotationY = cl.getRotationY(); 2627 final int newX = getScrollForPage(pageIndex); 2628 setScrollX(newX); 2629 cl.setTranslationX(0f); 2630 cl.setRotationY(0f); 2631 } 2632 } 2633 2634 public void resetFinalScrollForPageChange(int pageIndex) { 2635 if (pageIndex >= 0) { 2636 CellLayout cl = (CellLayout) getChildAt(pageIndex); 2637 setScrollX(mSavedScrollX); 2638 cl.setTranslationX(mSavedTranslationX); 2639 cl.setRotationY(mSavedRotationY); 2640 } 2641 } 2642 2643 public void getViewLocationRelativeToSelf(View v, int[] location) { 2644 getLocationInWindow(location); 2645 int x = location[0]; 2646 int y = location[1]; 2647 2648 v.getLocationInWindow(location); 2649 int vX = location[0]; 2650 int vY = location[1]; 2651 2652 location[0] = vX - x; 2653 location[1] = vY - y; 2654 } 2655 2656 public void onDragEnter(DragObject d) { 2657 mDragEnforcer.onDragEnter(); 2658 mCreateUserFolderOnDrop = false; 2659 mAddToExistingFolderOnDrop = false; 2660 2661 mDropToLayout = null; 2662 CellLayout layout = getCurrentDropLayout(); 2663 setCurrentDropLayout(layout); 2664 setCurrentDragOverlappingLayout(layout); 2665 2666 // Because we don't have space in the Phone UI (the CellLayouts run to the edge) we 2667 // don't need to show the outlines 2668 if (LauncherAppState.getInstance().isScreenLarge()) { 2669 showOutlines(); 2670 } 2671 } 2672 2673 static Rect getCellLayoutMetrics(Launcher launcher, int orientation) { 2674 LauncherAppState app = LauncherAppState.getInstance(); 2675 DeviceProfile grid = app.getDynamicGrid().getDeviceProfile(); 2676 2677 Resources res = launcher.getResources(); 2678 Display display = launcher.getWindowManager().getDefaultDisplay(); 2679 Point smallestSize = new Point(); 2680 Point largestSize = new Point(); 2681 display.getCurrentSizeRange(smallestSize, largestSize); 2682 int countX = (int) grid.numColumns; 2683 int countY = (int) grid.numRows; 2684 if (orientation == CellLayout.LANDSCAPE) { 2685 if (mLandscapeCellLayoutMetrics == null) { 2686 Rect padding = grid.getWorkspacePadding(CellLayout.LANDSCAPE); 2687 int width = largestSize.x - padding.left - padding.right; 2688 int height = smallestSize.y - padding.top - padding.bottom; 2689 mLandscapeCellLayoutMetrics = new Rect(); 2690 CellLayout.getMetrics(mLandscapeCellLayoutMetrics, width, height, 2691 countX, countY); 2692 } 2693 return mLandscapeCellLayoutMetrics; 2694 } else if (orientation == CellLayout.PORTRAIT) { 2695 if (mPortraitCellLayoutMetrics == null) { 2696 Rect padding = grid.getWorkspacePadding(CellLayout.PORTRAIT); 2697 int width = smallestSize.x - padding.left - padding.right; 2698 int height = largestSize.y - padding.top - padding.bottom; 2699 mPortraitCellLayoutMetrics = new Rect(); 2700 CellLayout.getMetrics(mPortraitCellLayoutMetrics, width, height, 2701 countX, countY); 2702 } 2703 return mPortraitCellLayoutMetrics; 2704 } 2705 return null; 2706 } 2707 2708 public void onDragExit(DragObject d) { 2709 mDragEnforcer.onDragExit(); 2710 2711 // Here we store the final page that will be dropped to, if the workspace in fact 2712 // receives the drop 2713 if (mInScrollArea) { 2714 if (isPageMoving()) { 2715 // If the user drops while the page is scrolling, we should use that page as the 2716 // destination instead of the page that is being hovered over. 2717 mDropToLayout = (CellLayout) getPageAt(getNextPage()); 2718 } else { 2719 mDropToLayout = mDragOverlappingLayout; 2720 } 2721 } else { 2722 mDropToLayout = mDragTargetLayout; 2723 } 2724 2725 if (mDragMode == DRAG_MODE_CREATE_FOLDER) { 2726 mCreateUserFolderOnDrop = true; 2727 } else if (mDragMode == DRAG_MODE_ADD_TO_FOLDER) { 2728 mAddToExistingFolderOnDrop = true; 2729 } 2730 2731 // Reset the scroll area and previous drag target 2732 onResetScrollArea(); 2733 setCurrentDropLayout(null); 2734 setCurrentDragOverlappingLayout(null); 2735 2736 mSpringLoadedDragController.cancel(); 2737 2738 if (!mIsPageMoving) { 2739 hideOutlines(); 2740 } 2741 } 2742 2743 void setCurrentDropLayout(CellLayout layout) { 2744 if (mDragTargetLayout != null) { 2745 mDragTargetLayout.revertTempState(); 2746 mDragTargetLayout.onDragExit(); 2747 } 2748 mDragTargetLayout = layout; 2749 if (mDragTargetLayout != null) { 2750 mDragTargetLayout.onDragEnter(); 2751 } 2752 cleanupReorder(true); 2753 cleanupFolderCreation(); 2754 setCurrentDropOverCell(-1, -1); 2755 } 2756 2757 void setCurrentDragOverlappingLayout(CellLayout layout) { 2758 if (mDragOverlappingLayout != null) { 2759 mDragOverlappingLayout.setIsDragOverlapping(false); 2760 } 2761 mDragOverlappingLayout = layout; 2762 if (mDragOverlappingLayout != null) { 2763 mDragOverlappingLayout.setIsDragOverlapping(true); 2764 } 2765 invalidate(); 2766 } 2767 2768 void setCurrentDropOverCell(int x, int y) { 2769 if (x != mDragOverX || y != mDragOverY) { 2770 mDragOverX = x; 2771 mDragOverY = y; 2772 setDragMode(DRAG_MODE_NONE); 2773 } 2774 } 2775 2776 void setDragMode(int dragMode) { 2777 if (dragMode != mDragMode) { 2778 if (dragMode == DRAG_MODE_NONE) { 2779 cleanupAddToFolder(); 2780 // We don't want to cancel the re-order alarm every time the target cell changes 2781 // as this feels to slow / unresponsive. 2782 cleanupReorder(false); 2783 cleanupFolderCreation(); 2784 } else if (dragMode == DRAG_MODE_ADD_TO_FOLDER) { 2785 cleanupReorder(true); 2786 cleanupFolderCreation(); 2787 } else if (dragMode == DRAG_MODE_CREATE_FOLDER) { 2788 cleanupAddToFolder(); 2789 cleanupReorder(true); 2790 } else if (dragMode == DRAG_MODE_REORDER) { 2791 cleanupAddToFolder(); 2792 cleanupFolderCreation(); 2793 } 2794 mDragMode = dragMode; 2795 } 2796 } 2797 2798 private void cleanupFolderCreation() { 2799 if (mDragFolderRingAnimator != null) { 2800 mDragFolderRingAnimator.animateToNaturalState(); 2801 } 2802 mFolderCreationAlarm.cancelAlarm(); 2803 } 2804 2805 private void cleanupAddToFolder() { 2806 if (mDragOverFolderIcon != null) { 2807 mDragOverFolderIcon.onDragExit(null); 2808 mDragOverFolderIcon = null; 2809 } 2810 } 2811 2812 private void cleanupReorder(boolean cancelAlarm) { 2813 // Any pending reorders are canceled 2814 if (cancelAlarm) { 2815 mReorderAlarm.cancelAlarm(); 2816 } 2817 mLastReorderX = -1; 2818 mLastReorderY = -1; 2819 } 2820 2821 /* 2822 * 2823 * Convert the 2D coordinate xy from the parent View's coordinate space to this CellLayout's 2824 * coordinate space. The argument xy is modified with the return result. 2825 * 2826 * if cachedInverseMatrix is not null, this method will just use that matrix instead of 2827 * computing it itself; we use this to avoid redundant matrix inversions in 2828 * findMatchingPageForDragOver 2829 * 2830 */ 2831 void mapPointFromSelfToChild(View v, float[] xy, Matrix cachedInverseMatrix) { 2832 xy[0] = xy[0] - v.getLeft(); 2833 xy[1] = xy[1] - v.getTop(); 2834 } 2835 2836 boolean isPointInSelfOverHotseat(int x, int y, Rect r) { 2837 if (r == null) { 2838 r = new Rect(); 2839 } 2840 mTempPt[0] = x; 2841 mTempPt[1] = y; 2842 mLauncher.getDragLayer().getDescendantCoordRelativeToSelf(this, mTempPt, true); 2843 mLauncher.getHotseat().getHitRect(r); 2844 if (r.contains(mTempPt[0], mTempPt[1])) { 2845 return true; 2846 } 2847 return false; 2848 } 2849 2850 void mapPointFromSelfToHotseatLayout(Hotseat hotseat, float[] xy) { 2851 mTempPt[0] = (int) xy[0]; 2852 mTempPt[1] = (int) xy[1]; 2853 mLauncher.getDragLayer().getDescendantCoordRelativeToSelf(this, mTempPt, true); 2854 mLauncher.getDragLayer().mapCoordInSelfToDescendent(hotseat.getLayout(), mTempPt); 2855 2856 xy[0] = mTempPt[0]; 2857 xy[1] = mTempPt[1]; 2858 } 2859 2860 /* 2861 * 2862 * Convert the 2D coordinate xy from this CellLayout's coordinate space to 2863 * the parent View's coordinate space. The argument xy is modified with the return result. 2864 * 2865 */ 2866 void mapPointFromChildToSelf(View v, float[] xy) { 2867 xy[0] += v.getLeft(); 2868 xy[1] += v.getTop(); 2869 } 2870 2871 static private float squaredDistance(float[] point1, float[] point2) { 2872 float distanceX = point1[0] - point2[0]; 2873 float distanceY = point2[1] - point2[1]; 2874 return distanceX * distanceX + distanceY * distanceY; 2875 } 2876 2877 /* 2878 * 2879 * This method returns the CellLayout that is currently being dragged to. In order to drag 2880 * to a CellLayout, either the touch point must be directly over the CellLayout, or as a second 2881 * strategy, we see if the dragView is overlapping any CellLayout and choose the closest one 2882 * 2883 * Return null if no CellLayout is currently being dragged over 2884 * 2885 */ 2886 private CellLayout findMatchingPageForDragOver( 2887 DragView dragView, float originX, float originY, boolean exact) { 2888 // We loop through all the screens (ie CellLayouts) and see which ones overlap 2889 // with the item being dragged and then choose the one that's closest to the touch point 2890 final int screenCount = getChildCount(); 2891 CellLayout bestMatchingScreen = null; 2892 float smallestDistSoFar = Float.MAX_VALUE; 2893 2894 for (int i = 0; i < screenCount; i++) { 2895 CellLayout cl = (CellLayout) getChildAt(i); 2896 2897 final float[] touchXy = {originX, originY}; 2898 // Transform the touch coordinates to the CellLayout's local coordinates 2899 // If the touch point is within the bounds of the cell layout, we can return immediately 2900 cl.getMatrix().invert(mTempInverseMatrix); 2901 mapPointFromSelfToChild(cl, touchXy, mTempInverseMatrix); 2902 2903 if (touchXy[0] >= 0 && touchXy[0] <= cl.getWidth() && 2904 touchXy[1] >= 0 && touchXy[1] <= cl.getHeight()) { 2905 return cl; 2906 } 2907 2908 if (!exact) { 2909 // Get the center of the cell layout in screen coordinates 2910 final float[] cellLayoutCenter = mTempCellLayoutCenterCoordinates; 2911 cellLayoutCenter[0] = cl.getWidth()/2; 2912 cellLayoutCenter[1] = cl.getHeight()/2; 2913 mapPointFromChildToSelf(cl, cellLayoutCenter); 2914 2915 touchXy[0] = originX; 2916 touchXy[1] = originY; 2917 2918 // Calculate the distance between the center of the CellLayout 2919 // and the touch point 2920 float dist = squaredDistance(touchXy, cellLayoutCenter); 2921 2922 if (dist < smallestDistSoFar) { 2923 smallestDistSoFar = dist; 2924 bestMatchingScreen = cl; 2925 } 2926 } 2927 } 2928 return bestMatchingScreen; 2929 } 2930 2931 // This is used to compute the visual center of the dragView. This point is then 2932 // used to visualize drop locations and determine where to drop an item. The idea is that 2933 // the visual center represents the user's interpretation of where the item is, and hence 2934 // is the appropriate point to use when determining drop location. 2935 private float[] getDragViewVisualCenter(int x, int y, int xOffset, int yOffset, 2936 DragView dragView, float[] recycle) { 2937 float res[]; 2938 if (recycle == null) { 2939 res = new float[2]; 2940 } else { 2941 res = recycle; 2942 } 2943 2944 // First off, the drag view has been shifted in a way that is not represented in the 2945 // x and y values or the x/yOffsets. Here we account for that shift. 2946 x += getResources().getDimensionPixelSize(R.dimen.dragViewOffsetX); 2947 y += getResources().getDimensionPixelSize(R.dimen.dragViewOffsetY); 2948 2949 // These represent the visual top and left of drag view if a dragRect was provided. 2950 // If a dragRect was not provided, then they correspond to the actual view left and 2951 // top, as the dragRect is in that case taken to be the entire dragView. 2952 // R.dimen.dragViewOffsetY. 2953 int left = x - xOffset; 2954 int top = y - yOffset; 2955 2956 // In order to find the visual center, we shift by half the dragRect 2957 res[0] = left + dragView.getDragRegion().width() / 2; 2958 res[1] = top + dragView.getDragRegion().height() / 2; 2959 2960 return res; 2961 } 2962 2963 private boolean isDragWidget(DragObject d) { 2964 return (d.dragInfo instanceof LauncherAppWidgetInfo || 2965 d.dragInfo instanceof PendingAddWidgetInfo); 2966 } 2967 private boolean isExternalDragWidget(DragObject d) { 2968 return d.dragSource != this && isDragWidget(d); 2969 } 2970 2971 public void onDragOver(DragObject d) { 2972 // Skip drag over events while we are dragging over side pages 2973 if (mInScrollArea || mIsSwitchingState || mState == State.SMALL) return; 2974 2975 Rect r = new Rect(); 2976 CellLayout layout = null; 2977 ItemInfo item = (ItemInfo) d.dragInfo; 2978 2979 // Ensure that we have proper spans for the item that we are dropping 2980 if (item.spanX < 0 || item.spanY < 0) throw new RuntimeException("Improper spans found"); 2981 mDragViewVisualCenter = getDragViewVisualCenter(d.x, d.y, d.xOffset, d.yOffset, 2982 d.dragView, mDragViewVisualCenter); 2983 2984 final View child = (mDragInfo == null) ? null : mDragInfo.cell; 2985 // Identify whether we have dragged over a side page 2986 if (isSmall()) { 2987 if (mLauncher.getHotseat() != null && !isExternalDragWidget(d)) { 2988 if (isPointInSelfOverHotseat(d.x, d.y, r)) { 2989 layout = mLauncher.getHotseat().getLayout(); 2990 } 2991 } 2992 if (layout == null) { 2993 layout = findMatchingPageForDragOver(d.dragView, d.x, d.y, false); 2994 } 2995 if (layout != mDragTargetLayout) { 2996 setCurrentDropLayout(layout); 2997 setCurrentDragOverlappingLayout(layout); 2998 2999 boolean isInSpringLoadedMode = (mState == State.SPRING_LOADED); 3000 if (isInSpringLoadedMode) { 3001 if (mLauncher.isHotseatLayout(layout)) { 3002 mSpringLoadedDragController.cancel(); 3003 } else { 3004 mSpringLoadedDragController.setAlarm(mDragTargetLayout); 3005 } 3006 } 3007 } 3008 } else { 3009 // Test to see if we are over the hotseat otherwise just use the current page 3010 if (mLauncher.getHotseat() != null && !isDragWidget(d)) { 3011 if (isPointInSelfOverHotseat(d.x, d.y, r)) { 3012 layout = mLauncher.getHotseat().getLayout(); 3013 } 3014 } 3015 if (layout == null) { 3016 layout = getCurrentDropLayout(); 3017 } 3018 if (layout != mDragTargetLayout) { 3019 setCurrentDropLayout(layout); 3020 setCurrentDragOverlappingLayout(layout); 3021 } 3022 } 3023 3024 // Handle the drag over 3025 if (mDragTargetLayout != null) { 3026 // We want the point to be mapped to the dragTarget. 3027 if (mLauncher.isHotseatLayout(mDragTargetLayout)) { 3028 mapPointFromSelfToHotseatLayout(mLauncher.getHotseat(), mDragViewVisualCenter); 3029 } else { 3030 mapPointFromSelfToChild(mDragTargetLayout, mDragViewVisualCenter, null); 3031 } 3032 3033 ItemInfo info = (ItemInfo) d.dragInfo; 3034 3035 mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], 3036 (int) mDragViewVisualCenter[1], item.spanX, item.spanY, 3037 mDragTargetLayout, mTargetCell); 3038 3039 setCurrentDropOverCell(mTargetCell[0], mTargetCell[1]); 3040 3041 float targetCellDistance = mDragTargetLayout.getDistanceFromCell( 3042 mDragViewVisualCenter[0], mDragViewVisualCenter[1], mTargetCell); 3043 3044 final View dragOverView = mDragTargetLayout.getChildAt(mTargetCell[0], 3045 mTargetCell[1]); 3046 3047 manageFolderFeedback(info, mDragTargetLayout, mTargetCell, 3048 targetCellDistance, dragOverView); 3049 3050 int minSpanX = item.spanX; 3051 int minSpanY = item.spanY; 3052 if (item.minSpanX > 0 && item.minSpanY > 0) { 3053 minSpanX = item.minSpanX; 3054 minSpanY = item.minSpanY; 3055 } 3056 3057 boolean nearestDropOccupied = mDragTargetLayout.isNearestDropLocationOccupied((int) 3058 mDragViewVisualCenter[0], (int) mDragViewVisualCenter[1], item.spanX, 3059 item.spanY, child, mTargetCell); 3060 3061 if (!nearestDropOccupied) { 3062 mDragTargetLayout.visualizeDropLocation(child, mDragOutline, 3063 (int) mDragViewVisualCenter[0], (int) mDragViewVisualCenter[1], 3064 mTargetCell[0], mTargetCell[1], item.spanX, item.spanY, false, 3065 d.dragView.getDragVisualizeOffset(), d.dragView.getDragRegion()); 3066 } else if ((mDragMode == DRAG_MODE_NONE || mDragMode == DRAG_MODE_REORDER) 3067 && !mReorderAlarm.alarmPending() && (mLastReorderX != mTargetCell[0] || 3068 mLastReorderY != mTargetCell[1])) { 3069 3070 // Otherwise, if we aren't adding to or creating a folder and there's no pending 3071 // reorder, then we schedule a reorder 3072 ReorderAlarmListener listener = new ReorderAlarmListener(mDragViewVisualCenter, 3073 minSpanX, minSpanY, item.spanX, item.spanY, d.dragView, child); 3074 mReorderAlarm.setOnAlarmListener(listener); 3075 mReorderAlarm.setAlarm(REORDER_TIMEOUT); 3076 } 3077 3078 if (mDragMode == DRAG_MODE_CREATE_FOLDER || mDragMode == DRAG_MODE_ADD_TO_FOLDER || 3079 !nearestDropOccupied) { 3080 if (mDragTargetLayout != null) { 3081 mDragTargetLayout.revertTempState(); 3082 } 3083 } 3084 } 3085 } 3086 3087 private void manageFolderFeedback(ItemInfo info, CellLayout targetLayout, 3088 int[] targetCell, float distance, View dragOverView) { 3089 boolean userFolderPending = willCreateUserFolder(info, targetLayout, targetCell, distance, 3090 false); 3091 3092 if (mDragMode == DRAG_MODE_NONE && userFolderPending && 3093 !mFolderCreationAlarm.alarmPending()) { 3094 mFolderCreationAlarm.setOnAlarmListener(new 3095 FolderCreationAlarmListener(targetLayout, targetCell[0], targetCell[1])); 3096 mFolderCreationAlarm.setAlarm(FOLDER_CREATION_TIMEOUT); 3097 return; 3098 } 3099 3100 boolean willAddToFolder = 3101 willAddToExistingUserFolder(info, targetLayout, targetCell, distance); 3102 3103 if (willAddToFolder && mDragMode == DRAG_MODE_NONE) { 3104 mDragOverFolderIcon = ((FolderIcon) dragOverView); 3105 mDragOverFolderIcon.onDragEnter(info); 3106 if (targetLayout != null) { 3107 targetLayout.clearDragOutlines(); 3108 } 3109 setDragMode(DRAG_MODE_ADD_TO_FOLDER); 3110 return; 3111 } 3112 3113 if (mDragMode == DRAG_MODE_ADD_TO_FOLDER && !willAddToFolder) { 3114 setDragMode(DRAG_MODE_NONE); 3115 } 3116 if (mDragMode == DRAG_MODE_CREATE_FOLDER && !userFolderPending) { 3117 setDragMode(DRAG_MODE_NONE); 3118 } 3119 3120 return; 3121 } 3122 3123 class FolderCreationAlarmListener implements OnAlarmListener { 3124 CellLayout layout; 3125 int cellX; 3126 int cellY; 3127 3128 public FolderCreationAlarmListener(CellLayout layout, int cellX, int cellY) { 3129 this.layout = layout; 3130 this.cellX = cellX; 3131 this.cellY = cellY; 3132 } 3133 3134 public void onAlarm(Alarm alarm) { 3135 if (mDragFolderRingAnimator == null) { 3136 mDragFolderRingAnimator = new FolderRingAnimator(mLauncher, null); 3137 } 3138 mDragFolderRingAnimator.setCell(cellX, cellY); 3139 mDragFolderRingAnimator.setCellLayout(layout); 3140 mDragFolderRingAnimator.animateToAcceptState(); 3141 layout.showFolderAccept(mDragFolderRingAnimator); 3142 layout.clearDragOutlines(); 3143 setDragMode(DRAG_MODE_CREATE_FOLDER); 3144 } 3145 } 3146 3147 class ReorderAlarmListener implements OnAlarmListener { 3148 float[] dragViewCenter; 3149 int minSpanX, minSpanY, spanX, spanY; 3150 DragView dragView; 3151 View child; 3152 3153 public ReorderAlarmListener(float[] dragViewCenter, int minSpanX, int minSpanY, int spanX, 3154 int spanY, DragView dragView, View child) { 3155 this.dragViewCenter = dragViewCenter; 3156 this.minSpanX = minSpanX; 3157 this.minSpanY = minSpanY; 3158 this.spanX = spanX; 3159 this.spanY = spanY; 3160 this.child = child; 3161 this.dragView = dragView; 3162 } 3163 3164 public void onAlarm(Alarm alarm) { 3165 int[] resultSpan = new int[2]; 3166 mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], 3167 (int) mDragViewVisualCenter[1], spanX, spanY, mDragTargetLayout, mTargetCell); 3168 mLastReorderX = mTargetCell[0]; 3169 mLastReorderY = mTargetCell[1]; 3170 3171 mTargetCell = mDragTargetLayout.createArea((int) mDragViewVisualCenter[0], 3172 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, spanX, spanY, 3173 child, mTargetCell, resultSpan, CellLayout.MODE_DRAG_OVER); 3174 3175 if (mTargetCell[0] < 0 || mTargetCell[1] < 0) { 3176 mDragTargetLayout.revertTempState(); 3177 } else { 3178 setDragMode(DRAG_MODE_REORDER); 3179 } 3180 3181 boolean resize = resultSpan[0] != spanX || resultSpan[1] != spanY; 3182 mDragTargetLayout.visualizeDropLocation(child, mDragOutline, 3183 (int) mDragViewVisualCenter[0], (int) mDragViewVisualCenter[1], 3184 mTargetCell[0], mTargetCell[1], resultSpan[0], resultSpan[1], resize, 3185 dragView.getDragVisualizeOffset(), dragView.getDragRegion()); 3186 } 3187 } 3188 3189 @Override 3190 public void getHitRectRelativeToDragLayer(Rect outRect) { 3191 // We want the workspace to have the whole area of the display (it will find the correct 3192 // cell layout to drop to in the existing drag/drop logic. 3193 mLauncher.getDragLayer().getDescendantRectRelativeToSelf(this, outRect); 3194 } 3195 3196 /** 3197 * Add the item specified by dragInfo to the given layout. 3198 * @return true if successful 3199 */ 3200 public boolean addExternalItemToScreen(ItemInfo dragInfo, CellLayout layout) { 3201 if (layout.findCellForSpan(mTempEstimate, dragInfo.spanX, dragInfo.spanY)) { 3202 onDropExternal(dragInfo.dropPos, (ItemInfo) dragInfo, (CellLayout) layout, false); 3203 return true; 3204 } 3205 mLauncher.showOutOfSpaceMessage(mLauncher.isHotseatLayout(layout)); 3206 return false; 3207 } 3208 3209 private void onDropExternal(int[] touchXY, Object dragInfo, 3210 CellLayout cellLayout, boolean insertAtFirst) { 3211 onDropExternal(touchXY, dragInfo, cellLayout, insertAtFirst, null); 3212 } 3213 3214 /** 3215 * Drop an item that didn't originate on one of the workspace screens. 3216 * It may have come from Launcher (e.g. from all apps or customize), or it may have 3217 * come from another app altogether. 3218 * 3219 * NOTE: This can also be called when we are outside of a drag event, when we want 3220 * to add an item to one of the workspace screens. 3221 */ 3222 private void onDropExternal(final int[] touchXY, final Object dragInfo, 3223 final CellLayout cellLayout, boolean insertAtFirst, DragObject d) { 3224 final Runnable exitSpringLoadedRunnable = new Runnable() { 3225 @Override 3226 public void run() { 3227 mLauncher.exitSpringLoadedDragModeDelayed(true, false, null); 3228 } 3229 }; 3230 3231 ItemInfo info = (ItemInfo) dragInfo; 3232 int spanX = info.spanX; 3233 int spanY = info.spanY; 3234 if (mDragInfo != null) { 3235 spanX = mDragInfo.spanX; 3236 spanY = mDragInfo.spanY; 3237 } 3238 3239 final long container = mLauncher.isHotseatLayout(cellLayout) ? 3240 LauncherSettings.Favorites.CONTAINER_HOTSEAT : 3241 LauncherSettings.Favorites.CONTAINER_DESKTOP; 3242 final long screenId = getIdForScreen(cellLayout); 3243 if (!mLauncher.isHotseatLayout(cellLayout) 3244 && screenId != getScreenIdForPageIndex(mCurrentPage) 3245 && mState != State.SPRING_LOADED) { 3246 snapToScreenId(screenId, null); 3247 } 3248 3249 if (info instanceof PendingAddItemInfo) { 3250 final PendingAddItemInfo pendingInfo = (PendingAddItemInfo) dragInfo; 3251 3252 boolean findNearestVacantCell = true; 3253 if (pendingInfo.itemType == LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT) { 3254 mTargetCell = findNearestArea((int) touchXY[0], (int) touchXY[1], spanX, spanY, 3255 cellLayout, mTargetCell); 3256 float distance = cellLayout.getDistanceFromCell(mDragViewVisualCenter[0], 3257 mDragViewVisualCenter[1], mTargetCell); 3258 if (willCreateUserFolder((ItemInfo) d.dragInfo, cellLayout, mTargetCell, 3259 distance, true) || willAddToExistingUserFolder((ItemInfo) d.dragInfo, 3260 cellLayout, mTargetCell, distance)) { 3261 findNearestVacantCell = false; 3262 } 3263 } 3264 3265 final ItemInfo item = (ItemInfo) d.dragInfo; 3266 boolean updateWidgetSize = false; 3267 if (findNearestVacantCell) { 3268 int minSpanX = item.spanX; 3269 int minSpanY = item.spanY; 3270 if (item.minSpanX > 0 && item.minSpanY > 0) { 3271 minSpanX = item.minSpanX; 3272 minSpanY = item.minSpanY; 3273 } 3274 int[] resultSpan = new int[2]; 3275 mTargetCell = cellLayout.createArea((int) mDragViewVisualCenter[0], 3276 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, info.spanX, info.spanY, 3277 null, mTargetCell, resultSpan, CellLayout.MODE_ON_DROP_EXTERNAL); 3278 3279 if (resultSpan[0] != item.spanX || resultSpan[1] != item.spanY) { 3280 updateWidgetSize = true; 3281 } 3282 item.spanX = resultSpan[0]; 3283 item.spanY = resultSpan[1]; 3284 } 3285 3286 Runnable onAnimationCompleteRunnable = new Runnable() { 3287 @Override 3288 public void run() { 3289 // When dragging and dropping from customization tray, we deal with creating 3290 // widgets/shortcuts/folders in a slightly different way 3291 switch (pendingInfo.itemType) { 3292 case LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET: 3293 int span[] = new int[2]; 3294 span[0] = item.spanX; 3295 span[1] = item.spanY; 3296 mLauncher.addAppWidgetFromDrop((PendingAddWidgetInfo) pendingInfo, 3297 container, screenId, mTargetCell, span, null); 3298 break; 3299 case LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT: 3300 mLauncher.processShortcutFromDrop(pendingInfo.componentName, 3301 container, screenId, mTargetCell, null); 3302 break; 3303 default: 3304 throw new IllegalStateException("Unknown item type: " + 3305 pendingInfo.itemType); 3306 } 3307 } 3308 }; 3309 View finalView = pendingInfo.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET 3310 ? ((PendingAddWidgetInfo) pendingInfo).boundWidget : null; 3311 3312 if (finalView instanceof AppWidgetHostView && updateWidgetSize) { 3313 AppWidgetHostView awhv = (AppWidgetHostView) finalView; 3314 AppWidgetResizeFrame.updateWidgetSizeRanges(awhv, mLauncher, item.spanX, 3315 item.spanY); 3316 } 3317 3318 int animationStyle = ANIMATE_INTO_POSITION_AND_DISAPPEAR; 3319 if (pendingInfo.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET && 3320 ((PendingAddWidgetInfo) pendingInfo).info.configure != null) { 3321 animationStyle = ANIMATE_INTO_POSITION_AND_REMAIN; 3322 } 3323 animateWidgetDrop(info, cellLayout, d.dragView, onAnimationCompleteRunnable, 3324 animationStyle, finalView, true); 3325 } else { 3326 // This is for other drag/drop cases, like dragging from All Apps 3327 View view = null; 3328 3329 switch (info.itemType) { 3330 case LauncherSettings.Favorites.ITEM_TYPE_APPLICATION: 3331 case LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT: 3332 if (info.container == NO_ID && info instanceof AppInfo) { 3333 // Came from all apps -- make a copy 3334 info = new ShortcutInfo((AppInfo) info); 3335 } 3336 view = mLauncher.createShortcut(R.layout.application, cellLayout, 3337 (ShortcutInfo) info); 3338 break; 3339 case LauncherSettings.Favorites.ITEM_TYPE_FOLDER: 3340 view = FolderIcon.fromXml(R.layout.folder_icon, mLauncher, cellLayout, 3341 (FolderInfo) info, mIconCache); 3342 break; 3343 default: 3344 throw new IllegalStateException("Unknown item type: " + info.itemType); 3345 } 3346 3347 // First we find the cell nearest to point at which the item is 3348 // dropped, without any consideration to whether there is an item there. 3349 if (touchXY != null) { 3350 mTargetCell = findNearestArea((int) touchXY[0], (int) touchXY[1], spanX, spanY, 3351 cellLayout, mTargetCell); 3352 float distance = cellLayout.getDistanceFromCell(mDragViewVisualCenter[0], 3353 mDragViewVisualCenter[1], mTargetCell); 3354 d.postAnimationRunnable = exitSpringLoadedRunnable; 3355 if (createUserFolderIfNecessary(view, container, cellLayout, mTargetCell, distance, 3356 true, d.dragView, d.postAnimationRunnable)) { 3357 return; 3358 } 3359 if (addToExistingFolderIfNecessary(view, cellLayout, mTargetCell, distance, d, 3360 true)) { 3361 return; 3362 } 3363 } 3364 3365 if (touchXY != null) { 3366 // when dragging and dropping, just find the closest free spot 3367 mTargetCell = cellLayout.createArea((int) mDragViewVisualCenter[0], 3368 (int) mDragViewVisualCenter[1], 1, 1, 1, 1, 3369 null, mTargetCell, null, CellLayout.MODE_ON_DROP_EXTERNAL); 3370 } else { 3371 cellLayout.findCellForSpan(mTargetCell, 1, 1); 3372 } 3373 addInScreen(view, container, screenId, mTargetCell[0], mTargetCell[1], info.spanX, 3374 info.spanY, insertAtFirst); 3375 cellLayout.onDropChild(view); 3376 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) view.getLayoutParams(); 3377 cellLayout.getShortcutsAndWidgets().measureChild(view); 3378 3379 LauncherModel.addOrMoveItemInDatabase(mLauncher, info, container, screenId, 3380 lp.cellX, lp.cellY); 3381 3382 if (d.dragView != null) { 3383 // We wrap the animation call in the temporary set and reset of the current 3384 // cellLayout to its final transform -- this means we animate the drag view to 3385 // the correct final location. 3386 setFinalTransitionTransform(cellLayout); 3387 mLauncher.getDragLayer().animateViewIntoPosition(d.dragView, view, 3388 exitSpringLoadedRunnable); 3389 resetTransitionTransform(cellLayout); 3390 } 3391 } 3392 } 3393 3394 public Bitmap createWidgetBitmap(ItemInfo widgetInfo, View layout) { 3395 int[] unScaledSize = mLauncher.getWorkspace().estimateItemSize(widgetInfo.spanX, 3396 widgetInfo.spanY, widgetInfo, false); 3397 int visibility = layout.getVisibility(); 3398 layout.setVisibility(VISIBLE); 3399 3400 int width = MeasureSpec.makeMeasureSpec(unScaledSize[0], MeasureSpec.EXACTLY); 3401 int height = MeasureSpec.makeMeasureSpec(unScaledSize[1], MeasureSpec.EXACTLY); 3402 Bitmap b = Bitmap.createBitmap(unScaledSize[0], unScaledSize[1], 3403 Bitmap.Config.ARGB_8888); 3404 Canvas c = new Canvas(b); 3405 3406 layout.measure(width, height); 3407 layout.layout(0, 0, unScaledSize[0], unScaledSize[1]); 3408 layout.draw(c); 3409 c.setBitmap(null); 3410 layout.setVisibility(visibility); 3411 return b; 3412 } 3413 3414 private void getFinalPositionForDropAnimation(int[] loc, float[] scaleXY, 3415 DragView dragView, CellLayout layout, ItemInfo info, int[] targetCell, 3416 boolean external, boolean scale) { 3417 // Now we animate the dragView, (ie. the widget or shortcut preview) into its final 3418 // location and size on the home screen. 3419 int spanX = info.spanX; 3420 int spanY = info.spanY; 3421 3422 Rect r = estimateItemPosition(layout, info, targetCell[0], targetCell[1], spanX, spanY); 3423 loc[0] = r.left; 3424 loc[1] = r.top; 3425 3426 setFinalTransitionTransform(layout); 3427 float cellLayoutScale = 3428 mLauncher.getDragLayer().getDescendantCoordRelativeToSelf(layout, loc, true); 3429 resetTransitionTransform(layout); 3430 3431 float dragViewScaleX; 3432 float dragViewScaleY; 3433 if (scale) { 3434 dragViewScaleX = (1.0f * r.width()) / dragView.getMeasuredWidth(); 3435 dragViewScaleY = (1.0f * r.height()) / dragView.getMeasuredHeight(); 3436 } else { 3437 dragViewScaleX = 1f; 3438 dragViewScaleY = 1f; 3439 } 3440 3441 // The animation will scale the dragView about its center, so we need to center about 3442 // the final location. 3443 loc[0] -= (dragView.getMeasuredWidth() - cellLayoutScale * r.width()) / 2; 3444 loc[1] -= (dragView.getMeasuredHeight() - cellLayoutScale * r.height()) / 2; 3445 3446 scaleXY[0] = dragViewScaleX * cellLayoutScale; 3447 scaleXY[1] = dragViewScaleY * cellLayoutScale; 3448 } 3449 3450 public void animateWidgetDrop(ItemInfo info, CellLayout cellLayout, DragView dragView, 3451 final Runnable onCompleteRunnable, int animationType, final View finalView, 3452 boolean external) { 3453 Rect from = new Rect(); 3454 mLauncher.getDragLayer().getViewRectRelativeToSelf(dragView, from); 3455 3456 int[] finalPos = new int[2]; 3457 float scaleXY[] = new float[2]; 3458 boolean scalePreview = !(info instanceof PendingAddShortcutInfo); 3459 getFinalPositionForDropAnimation(finalPos, scaleXY, dragView, cellLayout, info, mTargetCell, 3460 external, scalePreview); 3461 3462 Resources res = mLauncher.getResources(); 3463 int duration = res.getInteger(R.integer.config_dropAnimMaxDuration) - 200; 3464 3465 // In the case where we've prebound the widget, we remove it from the DragLayer 3466 if (finalView instanceof AppWidgetHostView && external) { 3467 Log.d(TAG, "6557954 Animate widget drop, final view is appWidgetHostView"); 3468 mLauncher.getDragLayer().removeView(finalView); 3469 } 3470 if ((animationType == ANIMATE_INTO_POSITION_AND_RESIZE || external) && finalView != null) { 3471 Bitmap crossFadeBitmap = createWidgetBitmap(info, finalView); 3472 dragView.setCrossFadeBitmap(crossFadeBitmap); 3473 dragView.crossFade((int) (duration * 0.8f)); 3474 } else if (info.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET && external) { 3475 scaleXY[0] = scaleXY[1] = Math.min(scaleXY[0], scaleXY[1]); 3476 } 3477 3478 DragLayer dragLayer = mLauncher.getDragLayer(); 3479 if (animationType == CANCEL_TWO_STAGE_WIDGET_DROP_ANIMATION) { 3480 mLauncher.getDragLayer().animateViewIntoPosition(dragView, finalPos, 0f, 0.1f, 0.1f, 3481 DragLayer.ANIMATION_END_DISAPPEAR, onCompleteRunnable, duration); 3482 } else { 3483 int endStyle; 3484 if (animationType == ANIMATE_INTO_POSITION_AND_REMAIN) { 3485 endStyle = DragLayer.ANIMATION_END_REMAIN_VISIBLE; 3486 } else { 3487 endStyle = DragLayer.ANIMATION_END_DISAPPEAR;; 3488 } 3489 3490 Runnable onComplete = new Runnable() { 3491 @Override 3492 public void run() { 3493 if (finalView != null) { 3494 finalView.setVisibility(VISIBLE); 3495 } 3496 if (onCompleteRunnable != null) { 3497 onCompleteRunnable.run(); 3498 } 3499 } 3500 }; 3501 dragLayer.animateViewIntoPosition(dragView, from.left, from.top, finalPos[0], 3502 finalPos[1], 1, 1, 1, scaleXY[0], scaleXY[1], onComplete, endStyle, 3503 duration, this); 3504 } 3505 } 3506 3507 public void setFinalTransitionTransform(CellLayout layout) { 3508 if (isSwitchingState()) { 3509 mCurrentScale = getScaleX(); 3510 setScaleX(mNewScale); 3511 setScaleY(mNewScale); 3512 } 3513 } 3514 public void resetTransitionTransform(CellLayout layout) { 3515 if (isSwitchingState()) { 3516 setScaleX(mCurrentScale); 3517 setScaleY(mCurrentScale); 3518 } 3519 } 3520 3521 /** 3522 * Return the current {@link CellLayout}, correctly picking the destination 3523 * screen while a scroll is in progress. 3524 */ 3525 public CellLayout getCurrentDropLayout() { 3526 return (CellLayout) getChildAt(getNextPage()); 3527 } 3528 3529 /** 3530 * Return the current CellInfo describing our current drag; this method exists 3531 * so that Launcher can sync this object with the correct info when the activity is created/ 3532 * destroyed 3533 * 3534 */ 3535 public CellLayout.CellInfo getDragInfo() { 3536 return mDragInfo; 3537 } 3538 3539 /** 3540 * Calculate the nearest cell where the given object would be dropped. 3541 * 3542 * pixelX and pixelY should be in the coordinate system of layout 3543 */ 3544 private int[] findNearestArea(int pixelX, int pixelY, 3545 int spanX, int spanY, CellLayout layout, int[] recycle) { 3546 return layout.findNearestArea( 3547 pixelX, pixelY, spanX, spanY, recycle); 3548 } 3549 3550 void setup(DragController dragController) { 3551 mSpringLoadedDragController = new SpringLoadedDragController(mLauncher); 3552 mDragController = dragController; 3553 3554 // hardware layers on children are enabled on startup, but should be disabled until 3555 // needed 3556 updateChildrenLayersEnabled(false); 3557 setWallpaperDimension(); 3558 } 3559 3560 /** 3561 * Called at the end of a drag which originated on the workspace. 3562 */ 3563 public void onDropCompleted(final View target, final DragObject d, 3564 final boolean isFlingToDelete, final boolean success) { 3565 if (mDeferDropAfterUninstall) { 3566 mDeferredAction = new Runnable() { 3567 public void run() { 3568 onDropCompleted(target, d, isFlingToDelete, success); 3569 mDeferredAction = null; 3570 } 3571 }; 3572 return; 3573 } 3574 3575 boolean beingCalledAfterUninstall = mDeferredAction != null; 3576 3577 if (success && !(beingCalledAfterUninstall && !mUninstallSuccessful)) { 3578 if (target != this && mDragInfo != null) { 3579 CellLayout parentCell = getParentCellLayoutForView(mDragInfo.cell); 3580 if (parentCell != null) { 3581 parentCell.removeView(mDragInfo.cell); 3582 } 3583 if (mDragInfo.cell instanceof DropTarget) { 3584 mDragController.removeDropTarget((DropTarget) mDragInfo.cell); 3585 } 3586 // If we move the item to anything not on the Workspace, check if any empty 3587 // screens need to be removed. If we dropped back on the workspace, this will 3588 // be done post drop animation. 3589 stripEmptyScreens(); 3590 } 3591 } else if (mDragInfo != null) { 3592 CellLayout cellLayout; 3593 if (mLauncher.isHotseatLayout(target)) { 3594 cellLayout = mLauncher.getHotseat().getLayout(); 3595 } else { 3596 cellLayout = getScreenWithId(mDragInfo.screenId); 3597 } 3598 cellLayout.onDropChild(mDragInfo.cell); 3599 } 3600 if ((d.cancelled || (beingCalledAfterUninstall && !mUninstallSuccessful)) 3601 && mDragInfo.cell != null) { 3602 mDragInfo.cell.setVisibility(VISIBLE); 3603 } 3604 mDragOutline = null; 3605 mDragInfo = null; 3606 } 3607 3608 public void deferCompleteDropAfterUninstallActivity() { 3609 mDeferDropAfterUninstall = true; 3610 } 3611 3612 /// maybe move this into a smaller part 3613 public void onUninstallActivityReturned(boolean success) { 3614 mDeferDropAfterUninstall = false; 3615 mUninstallSuccessful = success; 3616 if (mDeferredAction != null) { 3617 mDeferredAction.run(); 3618 } 3619 } 3620 3621 void updateItemLocationsInDatabase(CellLayout cl) { 3622 int count = cl.getShortcutsAndWidgets().getChildCount(); 3623 3624 long screenId = getIdForScreen(cl); 3625 int container = Favorites.CONTAINER_DESKTOP; 3626 3627 if (mLauncher.isHotseatLayout(cl)) { 3628 screenId = -1; 3629 container = Favorites.CONTAINER_HOTSEAT; 3630 } 3631 3632 for (int i = 0; i < count; i++) { 3633 View v = cl.getShortcutsAndWidgets().getChildAt(i); 3634 ItemInfo info = (ItemInfo) v.getTag(); 3635 // Null check required as the AllApps button doesn't have an item info 3636 if (info != null && info.requiresDbUpdate) { 3637 info.requiresDbUpdate = false; 3638 LauncherModel.modifyItemInDatabase(mLauncher, info, container, screenId, info.cellX, 3639 info.cellY, info.spanX, info.spanY); 3640 } 3641 } 3642 } 3643 3644 ArrayList<ComponentName> getUniqueComponents(boolean stripDuplicates, ArrayList<ComponentName> duplicates) { 3645 ArrayList<ComponentName> uniqueIntents = new ArrayList<ComponentName>(); 3646 getUniqueIntents((CellLayout) mLauncher.getHotseat().getLayout(), uniqueIntents, duplicates, false); 3647 int count = getChildCount(); 3648 for (int i = 0; i < count; i++) { 3649 CellLayout cl = (CellLayout) getChildAt(i); 3650 getUniqueIntents(cl, uniqueIntents, duplicates, false); 3651 } 3652 return uniqueIntents; 3653 } 3654 3655 void getUniqueIntents(CellLayout cl, ArrayList<ComponentName> uniqueIntents, 3656 ArrayList<ComponentName> duplicates, boolean stripDuplicates) { 3657 int count = cl.getShortcutsAndWidgets().getChildCount(); 3658 3659 ArrayList<View> children = new ArrayList<View>(); 3660 for (int i = 0; i < count; i++) { 3661 View v = cl.getShortcutsAndWidgets().getChildAt(i); 3662 children.add(v); 3663 } 3664 3665 for (int i = 0; i < count; i++) { 3666 View v = children.get(i); 3667 ItemInfo info = (ItemInfo) v.getTag(); 3668 // Null check required as the AllApps button doesn't have an item info 3669 if (info instanceof ShortcutInfo) { 3670 ShortcutInfo si = (ShortcutInfo) info; 3671 ComponentName cn = si.intent.getComponent(); 3672 3673 Uri dataUri = si.intent.getData(); 3674 // If dataUri is not null / empty or if this component isn't one that would 3675 // have previously showed up in the AllApps list, then this is a widget-type 3676 // shortcut, so ignore it. 3677 if (dataUri != null && !dataUri.equals(Uri.EMPTY)) { 3678 continue; 3679 } 3680 3681 if (!uniqueIntents.contains(cn)) { 3682 uniqueIntents.add(cn); 3683 } else { 3684 if (stripDuplicates) { 3685 cl.removeViewInLayout(v); 3686 LauncherModel.deleteItemFromDatabase(mLauncher, si); 3687 } 3688 if (duplicates != null) { 3689 duplicates.add(cn); 3690 } 3691 } 3692 } 3693 if (v instanceof FolderIcon) { 3694 FolderIcon fi = (FolderIcon) v; 3695 ArrayList<View> items = fi.getFolder().getItemsInReadingOrder(); 3696 for (int j = 0; j < items.size(); j++) { 3697 if (items.get(j).getTag() instanceof ShortcutInfo) { 3698 ShortcutInfo si = (ShortcutInfo) items.get(j).getTag(); 3699 ComponentName cn = si.intent.getComponent(); 3700 3701 Uri dataUri = si.intent.getData(); 3702 // If dataUri is not null / empty or if this component isn't one that would 3703 // have previously showed up in the AllApps list, then this is a widget-type 3704 // shortcut, so ignore it. 3705 if (dataUri != null && !dataUri.equals(Uri.EMPTY)) { 3706 continue; 3707 } 3708 3709 if (!uniqueIntents.contains(cn)) { 3710 uniqueIntents.add(cn); 3711 } else { 3712 if (stripDuplicates) { 3713 fi.getFolderInfo().remove(si); 3714 LauncherModel.deleteItemFromDatabase(mLauncher, si); 3715 } 3716 if (duplicates != null) { 3717 duplicates.add(cn); 3718 } 3719 } 3720 } 3721 } 3722 } 3723 } 3724 } 3725 3726 void saveWorkspaceToDb() { 3727 saveWorkspaceScreenToDb((CellLayout) mLauncher.getHotseat().getLayout()); 3728 int count = getChildCount(); 3729 for (int i = 0; i < count; i++) { 3730 CellLayout cl = (CellLayout) getChildAt(i); 3731 saveWorkspaceScreenToDb(cl); 3732 } 3733 } 3734 3735 void saveWorkspaceScreenToDb(CellLayout cl) { 3736 int count = cl.getShortcutsAndWidgets().getChildCount(); 3737 3738 long screenId = getIdForScreen(cl); 3739 int container = Favorites.CONTAINER_DESKTOP; 3740 3741 Hotseat hotseat = mLauncher.getHotseat(); 3742 if (mLauncher.isHotseatLayout(cl)) { 3743 screenId = -1; 3744 container = Favorites.CONTAINER_HOTSEAT; 3745 } 3746 3747 for (int i = 0; i < count; i++) { 3748 View v = cl.getShortcutsAndWidgets().getChildAt(i); 3749 ItemInfo info = (ItemInfo) v.getTag(); 3750 // Null check required as the AllApps button doesn't have an item info 3751 if (info != null) { 3752 int cellX = info.cellX; 3753 int cellY = info.cellY; 3754 if (container == Favorites.CONTAINER_HOTSEAT) { 3755 cellX = hotseat.getCellXFromOrder((int) info.screenId); 3756 cellY = hotseat.getCellYFromOrder((int) info.screenId); 3757 } 3758 LauncherModel.addItemToDatabase(mLauncher, info, container, screenId, cellX, 3759 cellY, false); 3760 } 3761 if (v instanceof FolderIcon) { 3762 FolderIcon fi = (FolderIcon) v; 3763 fi.getFolder().addItemLocationsInDatabase(); 3764 } 3765 } 3766 } 3767 3768 @Override 3769 public boolean supportsFlingToDelete() { 3770 return true; 3771 } 3772 3773 @Override 3774 public void onFlingToDelete(DragObject d, int x, int y, PointF vec) { 3775 // Do nothing 3776 } 3777 3778 @Override 3779 public void onFlingToDeleteCompleted() { 3780 // Do nothing 3781 } 3782 3783 public boolean isDropEnabled() { 3784 return true; 3785 } 3786 3787 @Override 3788 protected void onRestoreInstanceState(Parcelable state) { 3789 super.onRestoreInstanceState(state); 3790 Launcher.setScreen(mCurrentPage); 3791 } 3792 3793 @Override 3794 protected void dispatchRestoreInstanceState(SparseArray<Parcelable> container) { 3795 // We don't dispatch restoreInstanceState to our children using this code path. 3796 // Some pages will be restored immediately as their items are bound immediately, and 3797 // others we will need to wait until after their items are bound. 3798 mSavedStates = container; 3799 } 3800 3801 public void restoreInstanceStateForChild(int child) { 3802 if (mSavedStates != null) { 3803 mRestoredPages.add(child); 3804 CellLayout cl = (CellLayout) getChildAt(child); 3805 cl.restoreInstanceState(mSavedStates); 3806 } 3807 } 3808 3809 public void restoreInstanceStateForRemainingPages() { 3810 int count = getChildCount(); 3811 for (int i = 0; i < count; i++) { 3812 if (!mRestoredPages.contains(i)) { 3813 restoreInstanceStateForChild(i); 3814 } 3815 } 3816 mRestoredPages.clear(); 3817 } 3818 3819 @Override 3820 public void scrollLeft() { 3821 if (!isSmall() && !mIsSwitchingState) { 3822 super.scrollLeft(); 3823 } 3824 Folder openFolder = getOpenFolder(); 3825 if (openFolder != null) { 3826 openFolder.completeDragExit(); 3827 } 3828 } 3829 3830 @Override 3831 public void scrollRight() { 3832 if (!isSmall() && !mIsSwitchingState) { 3833 super.scrollRight(); 3834 } 3835 Folder openFolder = getOpenFolder(); 3836 if (openFolder != null) { 3837 openFolder.completeDragExit(); 3838 } 3839 } 3840 3841 @Override 3842 public boolean onEnterScrollArea(int x, int y, int direction) { 3843 // Ignore the scroll area if we are dragging over the hot seat 3844 boolean isPortrait = !LauncherAppState.isScreenLandscape(getContext()); 3845 if (mLauncher.getHotseat() != null && isPortrait) { 3846 Rect r = new Rect(); 3847 mLauncher.getHotseat().getHitRect(r); 3848 if (r.contains(x, y)) { 3849 return false; 3850 } 3851 } 3852 3853 boolean result = false; 3854 if (!isSmall() && !mIsSwitchingState && getOpenFolder() == null) { 3855 mInScrollArea = true; 3856 3857 final int page = getNextPage() + 3858 (direction == DragController.SCROLL_LEFT ? -1 : 1); 3859 // We always want to exit the current layout to ensure parity of enter / exit 3860 setCurrentDropLayout(null); 3861 3862 if (0 <= page && page < getChildCount()) { 3863 // Ensure that we are not dragging over to the custom content screen 3864 if (getScreenIdForPageIndex(page) == CUSTOM_CONTENT_SCREEN_ID) { 3865 return false; 3866 } 3867 3868 CellLayout layout = (CellLayout) getChildAt(page); 3869 setCurrentDragOverlappingLayout(layout); 3870 3871 // Workspace is responsible for drawing the edge glow on adjacent pages, 3872 // so we need to redraw the workspace when this may have changed. 3873 invalidate(); 3874 result = true; 3875 } 3876 } 3877 return result; 3878 } 3879 3880 @Override 3881 public boolean onExitScrollArea() { 3882 boolean result = false; 3883 if (mInScrollArea) { 3884 invalidate(); 3885 CellLayout layout = getCurrentDropLayout(); 3886 setCurrentDropLayout(layout); 3887 setCurrentDragOverlappingLayout(layout); 3888 3889 result = true; 3890 mInScrollArea = false; 3891 } 3892 return result; 3893 } 3894 3895 private void onResetScrollArea() { 3896 setCurrentDragOverlappingLayout(null); 3897 mInScrollArea = false; 3898 } 3899 3900 /** 3901 * Returns a specific CellLayout 3902 */ 3903 CellLayout getParentCellLayoutForView(View v) { 3904 ArrayList<CellLayout> layouts = getWorkspaceAndHotseatCellLayouts(); 3905 for (CellLayout layout : layouts) { 3906 if (layout.getShortcutsAndWidgets().indexOfChild(v) > -1) { 3907 return layout; 3908 } 3909 } 3910 return null; 3911 } 3912 3913 /** 3914 * Returns a list of all the CellLayouts in the workspace. 3915 */ 3916 ArrayList<CellLayout> getWorkspaceAndHotseatCellLayouts() { 3917 ArrayList<CellLayout> layouts = new ArrayList<CellLayout>(); 3918 int screenCount = getChildCount(); 3919 for (int screen = 0; screen < screenCount; screen++) { 3920 layouts.add(((CellLayout) getChildAt(screen))); 3921 } 3922 if (mLauncher.getHotseat() != null) { 3923 layouts.add(mLauncher.getHotseat().getLayout()); 3924 } 3925 return layouts; 3926 } 3927 3928 /** 3929 * We should only use this to search for specific children. Do not use this method to modify 3930 * ShortcutsAndWidgetsContainer directly. Includes ShortcutAndWidgetContainers from 3931 * the hotseat and workspace pages 3932 */ 3933 ArrayList<ShortcutAndWidgetContainer> getAllShortcutAndWidgetContainers() { 3934 ArrayList<ShortcutAndWidgetContainer> childrenLayouts = 3935 new ArrayList<ShortcutAndWidgetContainer>(); 3936 int screenCount = getChildCount(); 3937 for (int screen = 0; screen < screenCount; screen++) { 3938 childrenLayouts.add(((CellLayout) getChildAt(screen)).getShortcutsAndWidgets()); 3939 } 3940 if (mLauncher.getHotseat() != null) { 3941 childrenLayouts.add(mLauncher.getHotseat().getLayout().getShortcutsAndWidgets()); 3942 } 3943 return childrenLayouts; 3944 } 3945 3946 public Folder getFolderForTag(Object tag) { 3947 ArrayList<ShortcutAndWidgetContainer> childrenLayouts = 3948 getAllShortcutAndWidgetContainers(); 3949 for (ShortcutAndWidgetContainer layout: childrenLayouts) { 3950 int count = layout.getChildCount(); 3951 for (int i = 0; i < count; i++) { 3952 View child = layout.getChildAt(i); 3953 if (child instanceof Folder) { 3954 Folder f = (Folder) child; 3955 if (f.getInfo() == tag && f.getInfo().opened) { 3956 return f; 3957 } 3958 } 3959 } 3960 } 3961 return null; 3962 } 3963 3964 public View getViewForTag(Object tag) { 3965 ArrayList<ShortcutAndWidgetContainer> childrenLayouts = 3966 getAllShortcutAndWidgetContainers(); 3967 for (ShortcutAndWidgetContainer layout: childrenLayouts) { 3968 int count = layout.getChildCount(); 3969 for (int i = 0; i < count; i++) { 3970 View child = layout.getChildAt(i); 3971 if (child.getTag() == tag) { 3972 return child; 3973 } 3974 } 3975 } 3976 return null; 3977 } 3978 3979 void clearDropTargets() { 3980 ArrayList<ShortcutAndWidgetContainer> childrenLayouts = 3981 getAllShortcutAndWidgetContainers(); 3982 for (ShortcutAndWidgetContainer layout: childrenLayouts) { 3983 int childCount = layout.getChildCount(); 3984 for (int j = 0; j < childCount; j++) { 3985 View v = layout.getChildAt(j); 3986 if (v instanceof DropTarget) { 3987 mDragController.removeDropTarget((DropTarget) v); 3988 } 3989 } 3990 } 3991 } 3992 3993 // Removes ALL items that match a given package name, this is usually called when a package 3994 // has been removed and we want to remove all components (widgets, shortcuts, apps) that 3995 // belong to that package. 3996 void removeItemsByPackageName(final ArrayList<String> packages) { 3997 final HashSet<String> packageNames = new HashSet<String>(); 3998 packageNames.addAll(packages); 3999 4000 // Filter out all the ItemInfos that this is going to affect 4001 final HashSet<ItemInfo> infos = new HashSet<ItemInfo>(); 4002 final HashSet<ComponentName> cns = new HashSet<ComponentName>(); 4003 ArrayList<CellLayout> cellLayouts = getWorkspaceAndHotseatCellLayouts(); 4004 for (CellLayout layoutParent : cellLayouts) { 4005 ViewGroup layout = layoutParent.getShortcutsAndWidgets(); 4006 int childCount = layout.getChildCount(); 4007 for (int i = 0; i < childCount; ++i) { 4008 View view = layout.getChildAt(i); 4009 infos.add((ItemInfo) view.getTag()); 4010 } 4011 } 4012 LauncherModel.ItemInfoFilter filter = new LauncherModel.ItemInfoFilter() { 4013 @Override 4014 public boolean filterItem(ItemInfo parent, ItemInfo info, 4015 ComponentName cn) { 4016 if (packageNames.contains(cn.getPackageName())) { 4017 cns.add(cn); 4018 return true; 4019 } 4020 return false; 4021 } 4022 }; 4023 LauncherModel.filterItemInfos(infos, filter); 4024 4025 // Remove the affected components 4026 removeItemsByComponentName(cns); 4027 } 4028 4029 // Removes items that match the application info specified, when applications are removed 4030 // as a part of an update, this is called to ensure that other widgets and application 4031 // shortcuts are not removed. 4032 void removeItemsByApplicationInfo(final ArrayList<AppInfo> appInfos) { 4033 // Just create a hash table of all the specific components that this will affect 4034 HashSet<ComponentName> cns = new HashSet<ComponentName>(); 4035 for (AppInfo info : appInfos) { 4036 cns.add(info.componentName); 4037 } 4038 4039 // Remove all the things 4040 removeItemsByComponentName(cns); 4041 } 4042 4043 void removeItemsByComponentName(final HashSet<ComponentName> componentNames) { 4044 ArrayList<CellLayout> cellLayouts = getWorkspaceAndHotseatCellLayouts(); 4045 for (final CellLayout layoutParent: cellLayouts) { 4046 final ViewGroup layout = layoutParent.getShortcutsAndWidgets(); 4047 4048 final HashMap<ItemInfo, View> children = new HashMap<ItemInfo, View>(); 4049 for (int j = 0; j < layout.getChildCount(); j++) { 4050 final View view = layout.getChildAt(j); 4051 children.put((ItemInfo) view.getTag(), view); 4052 } 4053 4054 final ArrayList<View> childrenToRemove = new ArrayList<View>(); 4055 final HashMap<FolderInfo, ArrayList<ShortcutInfo>> folderAppsToRemove = 4056 new HashMap<FolderInfo, ArrayList<ShortcutInfo>>(); 4057 LauncherModel.ItemInfoFilter filter = new LauncherModel.ItemInfoFilter() { 4058 @Override 4059 public boolean filterItem(ItemInfo parent, ItemInfo info, 4060 ComponentName cn) { 4061 if (parent instanceof FolderInfo) { 4062 if (componentNames.contains(cn)) { 4063 FolderInfo folder = (FolderInfo) parent; 4064 ArrayList<ShortcutInfo> appsToRemove; 4065 if (folderAppsToRemove.containsKey(folder)) { 4066 appsToRemove = folderAppsToRemove.get(folder); 4067 } else { 4068 appsToRemove = new ArrayList<ShortcutInfo>(); 4069 folderAppsToRemove.put(folder, appsToRemove); 4070 } 4071 appsToRemove.add((ShortcutInfo) info); 4072 return true; 4073 } 4074 } else { 4075 if (componentNames.contains(cn)) { 4076 childrenToRemove.add(children.get(info)); 4077 return true; 4078 } 4079 } 4080 return false; 4081 } 4082 }; 4083 LauncherModel.filterItemInfos(children.keySet(), filter); 4084 4085 // Remove all the apps from their folders 4086 for (FolderInfo folder : folderAppsToRemove.keySet()) { 4087 ArrayList<ShortcutInfo> appsToRemove = folderAppsToRemove.get(folder); 4088 for (ShortcutInfo info : appsToRemove) { 4089 folder.remove(info); 4090 } 4091 } 4092 4093 // Remove all the other children 4094 for (View child : childrenToRemove) { 4095 // Note: We can not remove the view directly from CellLayoutChildren as this 4096 // does not re-mark the spaces as unoccupied. 4097 layoutParent.removeViewInLayout(child); 4098 if (child instanceof DropTarget) { 4099 mDragController.removeDropTarget((DropTarget) child); 4100 } 4101 } 4102 4103 if (childrenToRemove.size() > 0) { 4104 layout.requestLayout(); 4105 layout.invalidate(); 4106 } 4107 } 4108 4109 // Strip all the empty screens 4110 stripEmptyScreens(); 4111 } 4112 4113 void updateShortcuts(ArrayList<AppInfo> apps) { 4114 ArrayList<ShortcutAndWidgetContainer> childrenLayouts = getAllShortcutAndWidgetContainers(); 4115 for (ShortcutAndWidgetContainer layout: childrenLayouts) { 4116 int childCount = layout.getChildCount(); 4117 for (int j = 0; j < childCount; j++) { 4118 final View view = layout.getChildAt(j); 4119 Object tag = view.getTag(); 4120 4121 if (LauncherModel.isShortcutInfoUpdateable((ItemInfo) tag)) { 4122 ShortcutInfo info = (ShortcutInfo) tag; 4123 4124 final Intent intent = info.intent; 4125 final ComponentName name = intent.getComponent(); 4126 final int appCount = apps.size(); 4127 for (int k = 0; k < appCount; k++) { 4128 AppInfo app = apps.get(k); 4129 if (app.componentName.equals(name)) { 4130 BubbleTextView shortcut = (BubbleTextView) view; 4131 info.updateIcon(mIconCache); 4132 info.title = app.title.toString(); 4133 shortcut.applyFromShortcutInfo(info, mIconCache); 4134 } 4135 } 4136 } 4137 } 4138 } 4139 } 4140 4141 private void moveToScreen(int page, boolean animate) { 4142 if (!isSmall()) { 4143 if (animate) { 4144 snapToPage(page); 4145 } else { 4146 setCurrentPage(page); 4147 } 4148 } 4149 View child = getChildAt(page); 4150 if (child != null) { 4151 child.requestFocus(); 4152 } 4153 } 4154 4155 void moveToDefaultScreen(boolean animate) { 4156 moveToScreen(mDefaultPage, animate); 4157 } 4158 4159 void moveToCustomContentScreen(boolean animate) { 4160 if (hasCustomContent()) { 4161 int ccIndex = getPageIndexForScreenId(CUSTOM_CONTENT_SCREEN_ID); 4162 if (animate) { 4163 snapToPage(ccIndex); 4164 } else { 4165 setCurrentPage(ccIndex); 4166 } 4167 View child = getChildAt(ccIndex); 4168 if (child != null) { 4169 child.requestFocus(); 4170 } 4171 } 4172 } 4173 4174 @Override 4175 protected int getPageIndicatorMarker(int pageIndex) { 4176 if (getScreenIdForPageIndex(pageIndex) == CUSTOM_CONTENT_SCREEN_ID) { 4177 return R.layout.custom_content_page_indicator_marker; 4178 } 4179 return super.getPageIndicatorMarker(pageIndex); 4180 } 4181 4182 @Override 4183 public void syncPages() { 4184 } 4185 4186 @Override 4187 public void syncPageItems(int page, boolean immediate) { 4188 } 4189 4190 protected String getCurrentPageDescription() { 4191 int page = (mNextPage != INVALID_PAGE) ? mNextPage : mCurrentPage; 4192 return String.format(getContext().getString(R.string.workspace_scroll_format), 4193 page + 1, getChildCount()); 4194 } 4195 4196 public void getLocationInDragLayer(int[] loc) { 4197 mLauncher.getDragLayer().getLocationInDragLayer(this, loc); 4198 } 4199} 4200