Workspace.java revision 3f452c87db9c3639285eafd17fff6a6f9d28da44
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 float finalSearchBarAlpha = stateIsOverview ? 0f : 1f; 1799 1800 boolean zoomIn = true; 1801 mNewScale = 1.0f; 1802 1803 if (oldStateIsOverview) { 1804 disableFreeScroll(snapPage); 1805 } else if (stateIsOverview) { 1806 enableFreeScroll(); 1807 } 1808 1809 if (state != State.NORMAL) { 1810 if (stateIsSpringLoaded) { 1811 mNewScale = mSpringLoadedShrinkFactor; 1812 } else if (stateIsOverview) { 1813 mNewScale = mOverviewModeShrinkFactor; 1814 } else if (stateIsSmall){ 1815 mNewScale = mOverviewModeShrinkFactor - 0.1f; 1816 } 1817 if (oldStateIsNormal && stateIsSmall) { 1818 zoomIn = false; 1819 updateChildrenLayersEnabled(false); 1820 } else { 1821 finalBackgroundAlpha = 1.0f; 1822 } 1823 } 1824 final int duration = zoomIn ? 1825 getResources().getInteger(R.integer.config_workspaceUnshrinkTime) : 1826 getResources().getInteger(R.integer.config_appsCustomizeWorkspaceShrinkTime); 1827 for (int i = 0; i < getChildCount(); i++) { 1828 final CellLayout cl = (CellLayout) getChildAt(i); 1829 float finalAlpha = (!mWorkspaceFadeInAdjacentScreens || stateIsSpringLoaded || 1830 (i == mCurrentPage)) ? 1f : 0f; 1831 float currentAlpha = cl.getShortcutsAndWidgets().getAlpha(); 1832 float initialAlpha = currentAlpha; 1833 1834 // Determine the pages alpha during the state transition 1835 if ((oldStateIsSmall && stateIsNormal) || 1836 (oldStateIsNormal && stateIsSmall)) { 1837 // To/from workspace - only show the current page unless the transition is not 1838 // animated and the animation end callback below doesn't run; 1839 // or, if we're in spring-loaded mode 1840 if (i == mCurrentPage || !animated || oldStateIsSpringLoaded) { 1841 finalAlpha = 1f; 1842 } else { 1843 initialAlpha = 0f; 1844 finalAlpha = 0f; 1845 } 1846 } 1847 1848 mOldAlphas[i] = initialAlpha; 1849 mNewAlphas[i] = finalAlpha; 1850 if (animated) { 1851 mOldBackgroundAlphas[i] = cl.getBackgroundAlpha(); 1852 mNewBackgroundAlphas[i] = finalBackgroundAlpha; 1853 } else { 1854 setScaleX(mNewScale); 1855 setScaleY(mNewScale); 1856 cl.setBackgroundAlpha(finalBackgroundAlpha); 1857 cl.setShortcutAndWidgetAlpha(finalAlpha); 1858 } 1859 } 1860 1861 View searchBar = mLauncher.getQsbBar(); 1862 if (animated) { 1863 LauncherViewPropertyAnimator scale = new LauncherViewPropertyAnimator(this); 1864 scale.scaleX(mNewScale) 1865 .scaleY(mNewScale) 1866 .setInterpolator(mZoomInInterpolator); 1867 anim.play(scale); 1868 for (int index = 0; index < getChildCount(); index++) { 1869 final int i = index; 1870 final CellLayout cl = (CellLayout) getChildAt(i); 1871 float currentAlpha = cl.getShortcutsAndWidgets().getAlpha(); 1872 if (mOldAlphas[i] == 0 && mNewAlphas[i] == 0) { 1873 cl.setBackgroundAlpha(mNewBackgroundAlphas[i]); 1874 cl.setShortcutAndWidgetAlpha(mNewAlphas[i]); 1875 } else { 1876 1877 if (mOldAlphas[i] != mNewAlphas[i] || currentAlpha != mNewAlphas[i]) { 1878 LauncherViewPropertyAnimator alphaAnim = 1879 new LauncherViewPropertyAnimator(cl.getShortcutsAndWidgets()); 1880 alphaAnim.alpha(mNewAlphas[i]) 1881 .setDuration(duration) 1882 .setInterpolator(mZoomInInterpolator); 1883 anim.play(alphaAnim); 1884 } 1885 if (mOldBackgroundAlphas[i] != 0 || 1886 mNewBackgroundAlphas[i] != 0) { 1887 ValueAnimator bgAnim = 1888 LauncherAnimUtils.ofFloat(cl, 0f, 1f).setDuration(duration); 1889 bgAnim.setInterpolator(mZoomInInterpolator); 1890 bgAnim.addUpdateListener(new LauncherAnimatorUpdateListener() { 1891 public void onAnimationUpdate(float a, float b) { 1892 cl.setBackgroundAlpha( 1893 a * mOldBackgroundAlphas[i] + 1894 b * mNewBackgroundAlphas[i]); 1895 } 1896 }); 1897 anim.play(bgAnim); 1898 } 1899 } 1900 } 1901 ObjectAnimator pageIndicatorAlpha = null; 1902 if (getPageIndicator() != null) { 1903 pageIndicatorAlpha = ObjectAnimator.ofFloat(getPageIndicator(), "alpha", 1904 finalHotseatAndPageIndicatorAlpha); 1905 } 1906 ObjectAnimator hotseatAlpha = ObjectAnimator.ofFloat(mLauncher.getHotseat(), "alpha", 1907 finalHotseatAndPageIndicatorAlpha); 1908 ObjectAnimator searchBarAlpha = ObjectAnimator.ofFloat(searchBar, 1909 "alpha", finalSearchBarAlpha); 1910 ObjectAnimator overviewPanelAlpha = ObjectAnimator.ofFloat(mLauncher.getOverviewPanel(), 1911 "alpha", finalOverviewPanelAlpha); 1912 overviewPanelAlpha.addUpdateListener(new AlphaUpdateListener( 1913 mLauncher.getOverviewPanel())); 1914 hotseatAlpha.addUpdateListener(new AlphaUpdateListener(mLauncher.getHotseat())); 1915 searchBarAlpha.addUpdateListener(new AlphaUpdateListener(searchBar)); 1916 if (getPageIndicator() != null) { 1917 pageIndicatorAlpha.addUpdateListener(new AlphaUpdateListener(getPageIndicator())); 1918 } 1919 anim.play(overviewPanelAlpha); 1920 anim.play(hotseatAlpha); 1921 anim.play(searchBarAlpha); 1922 anim.play(pageIndicatorAlpha); 1923 anim.setStartDelay(delay); 1924 } else { 1925 mLauncher.getOverviewPanel().setAlpha(finalOverviewPanelAlpha); 1926 AlphaUpdateListener.updateVisibility(mLauncher.getOverviewPanel()); 1927 mLauncher.getHotseat().setAlpha(finalHotseatAndPageIndicatorAlpha); 1928 AlphaUpdateListener.updateVisibility(mLauncher.getHotseat()); 1929 if (getPageIndicator() != null) { 1930 getPageIndicator().setAlpha(finalHotseatAndPageIndicatorAlpha); 1931 AlphaUpdateListener.updateVisibility(getPageIndicator()); 1932 } 1933 searchBar.setAlpha(finalSearchBarAlpha); 1934 AlphaUpdateListener.updateVisibility(searchBar); 1935 updateCustomContentVisibility(); 1936 } 1937 if (finalSearchBarAlpha == 0) { 1938 mLauncher.setVoiceButtonProxyVisible(false); 1939 } else { 1940 mLauncher.setVoiceButtonProxyVisible(true); 1941 } 1942 1943 if (stateIsSpringLoaded) { 1944 // Right now we're covered by Apps Customize 1945 // Show the background gradient immediately, so the gradient will 1946 // be showing once AppsCustomize disappears 1947 animateBackgroundGradient(getResources().getInteger( 1948 R.integer.config_appsCustomizeSpringLoadedBgAlpha) / 100f, false); 1949 } else if (stateIsOverview) { 1950 animateBackgroundGradient(getResources().getInteger( 1951 R.integer.config_appsCustomizeSpringLoadedBgAlpha) / 100f, true); 1952 } else { 1953 // Fade the background gradient away 1954 animateBackgroundGradient(0f, true); 1955 } 1956 return anim; 1957 } 1958 1959 static class AlphaUpdateListener implements AnimatorUpdateListener { 1960 View view; 1961 public AlphaUpdateListener(View v) { 1962 view = v; 1963 } 1964 1965 @Override 1966 public void onAnimationUpdate(ValueAnimator arg0) { 1967 updateVisibility(view); 1968 } 1969 1970 public static void updateVisibility(View view) { 1971 if (view.getAlpha() < ALPHA_CUTOFF_THRESHOLD && view.getVisibility() != INVISIBLE) { 1972 view.setVisibility(INVISIBLE); 1973 } else if (view.getAlpha() > ALPHA_CUTOFF_THRESHOLD 1974 && view.getVisibility() != VISIBLE) { 1975 view.setVisibility(VISIBLE); 1976 } 1977 } 1978 } 1979 1980 @Override 1981 public void onLauncherTransitionPrepare(Launcher l, boolean animated, boolean toWorkspace) { 1982 onTransitionPrepare(); 1983 } 1984 1985 @Override 1986 public void onLauncherTransitionStart(Launcher l, boolean animated, boolean toWorkspace) { 1987 } 1988 1989 @Override 1990 public void onLauncherTransitionStep(Launcher l, float t) { 1991 mTransitionProgress = t; 1992 } 1993 1994 @Override 1995 public void onLauncherTransitionEnd(Launcher l, boolean animated, boolean toWorkspace) { 1996 onTransitionEnd(); 1997 } 1998 1999 private void onTransitionPrepare() { 2000 mIsSwitchingState = true; 2001 updateChildrenLayersEnabled(false); 2002 hideCustomContentIfNecessary(); 2003 } 2004 2005 void updateCustomContentVisibility() { 2006 int visibility = mState == Workspace.State.NORMAL ? VISIBLE : INVISIBLE; 2007 if (hasCustomContent()) { 2008 mWorkspaceScreens.get(CUSTOM_CONTENT_SCREEN_ID).setVisibility(visibility); 2009 } 2010 } 2011 2012 void showCustomContentIfNecessary() { 2013 boolean show = mState == Workspace.State.NORMAL; 2014 if (show && hasCustomContent()) { 2015 mWorkspaceScreens.get(CUSTOM_CONTENT_SCREEN_ID).setVisibility(VISIBLE); 2016 } 2017 } 2018 2019 void hideCustomContentIfNecessary() { 2020 boolean hide = mState != Workspace.State.NORMAL; 2021 if (hide && hasCustomContent()) { 2022 mWorkspaceScreens.get(CUSTOM_CONTENT_SCREEN_ID).setVisibility(INVISIBLE); 2023 } 2024 } 2025 2026 private void onTransitionEnd() { 2027 mIsSwitchingState = false; 2028 updateChildrenLayersEnabled(false); 2029 // The code in getChangeStateAnimation to determine initialAlpha and finalAlpha will ensure 2030 // ensure that only the current page is visible during (and subsequently, after) the 2031 // transition animation. If fade adjacent pages is disabled, then re-enable the page 2032 // visibility after the transition animation. 2033 if (!mWorkspaceFadeInAdjacentScreens) { 2034 for (int i = 0; i < getChildCount(); i++) { 2035 final CellLayout cl = (CellLayout) getChildAt(i); 2036 cl.setShortcutAndWidgetAlpha(1f); 2037 } 2038 } 2039 showCustomContentIfNecessary(); 2040 } 2041 2042 @Override 2043 public View getContent() { 2044 return this; 2045 } 2046 2047 /** 2048 * Draw the View v into the given Canvas. 2049 * 2050 * @param v the view to draw 2051 * @param destCanvas the canvas to draw on 2052 * @param padding the horizontal and vertical padding to use when drawing 2053 */ 2054 private void drawDragView(View v, Canvas destCanvas, int padding, boolean pruneToDrawable) { 2055 final Rect clipRect = mTempRect; 2056 v.getDrawingRect(clipRect); 2057 2058 boolean textVisible = false; 2059 2060 destCanvas.save(); 2061 if (v instanceof TextView && pruneToDrawable) { 2062 Drawable d = ((TextView) v).getCompoundDrawables()[1]; 2063 clipRect.set(0, 0, d.getIntrinsicWidth() + padding, d.getIntrinsicHeight() + padding); 2064 destCanvas.translate(padding / 2, padding / 2); 2065 d.draw(destCanvas); 2066 } else { 2067 if (v instanceof FolderIcon) { 2068 // For FolderIcons the text can bleed into the icon area, and so we need to 2069 // hide the text completely (which can't be achieved by clipping). 2070 if (((FolderIcon) v).getTextVisible()) { 2071 ((FolderIcon) v).setTextVisible(false); 2072 textVisible = true; 2073 } 2074 } else if (v instanceof BubbleTextView) { 2075 final BubbleTextView tv = (BubbleTextView) v; 2076 clipRect.bottom = tv.getExtendedPaddingTop() - (int) BubbleTextView.PADDING_V + 2077 tv.getLayout().getLineTop(0); 2078 } else if (v instanceof TextView) { 2079 final TextView tv = (TextView) v; 2080 clipRect.bottom = tv.getExtendedPaddingTop() - tv.getCompoundDrawablePadding() + 2081 tv.getLayout().getLineTop(0); 2082 } 2083 destCanvas.translate(-v.getScrollX() + padding / 2, -v.getScrollY() + padding / 2); 2084 destCanvas.clipRect(clipRect, Op.REPLACE); 2085 v.draw(destCanvas); 2086 2087 // Restore text visibility of FolderIcon if necessary 2088 if (textVisible) { 2089 ((FolderIcon) v).setTextVisible(true); 2090 } 2091 } 2092 destCanvas.restore(); 2093 } 2094 2095 /** 2096 * Returns a new bitmap to show when the given View is being dragged around. 2097 * Responsibility for the bitmap is transferred to the caller. 2098 */ 2099 public Bitmap createDragBitmap(View v, Canvas canvas, int padding) { 2100 Bitmap b; 2101 2102 if (v instanceof TextView) { 2103 Drawable d = ((TextView) v).getCompoundDrawables()[1]; 2104 b = Bitmap.createBitmap(d.getIntrinsicWidth() + padding, 2105 d.getIntrinsicHeight() + padding, Bitmap.Config.ARGB_8888); 2106 } else { 2107 b = Bitmap.createBitmap( 2108 v.getWidth() + padding, v.getHeight() + padding, Bitmap.Config.ARGB_8888); 2109 } 2110 2111 canvas.setBitmap(b); 2112 drawDragView(v, canvas, padding, true); 2113 canvas.setBitmap(null); 2114 2115 return b; 2116 } 2117 2118 /** 2119 * Returns a new bitmap to be used as the object outline, e.g. to visualize the drop location. 2120 * Responsibility for the bitmap is transferred to the caller. 2121 */ 2122 private Bitmap createDragOutline(View v, Canvas canvas, int padding) { 2123 final int outlineColor = getResources().getColor(android.R.color.holo_blue_light); 2124 final Bitmap b = Bitmap.createBitmap( 2125 v.getWidth() + padding, v.getHeight() + padding, Bitmap.Config.ARGB_8888); 2126 2127 canvas.setBitmap(b); 2128 drawDragView(v, canvas, padding, true); 2129 mOutlineHelper.applyMediumExpensiveOutlineWithBlur(b, canvas, outlineColor, outlineColor); 2130 canvas.setBitmap(null); 2131 return b; 2132 } 2133 2134 /** 2135 * Returns a new bitmap to be used as the object outline, e.g. to visualize the drop location. 2136 * Responsibility for the bitmap is transferred to the caller. 2137 */ 2138 private Bitmap createDragOutline(Bitmap orig, Canvas canvas, int padding, int w, int h, 2139 boolean clipAlpha) { 2140 final int outlineColor = getResources().getColor(android.R.color.holo_blue_light); 2141 final Bitmap b = Bitmap.createBitmap(w, h, Bitmap.Config.ARGB_8888); 2142 canvas.setBitmap(b); 2143 2144 Rect src = new Rect(0, 0, orig.getWidth(), orig.getHeight()); 2145 float scaleFactor = Math.min((w - padding) / (float) orig.getWidth(), 2146 (h - padding) / (float) orig.getHeight()); 2147 int scaledWidth = (int) (scaleFactor * orig.getWidth()); 2148 int scaledHeight = (int) (scaleFactor * orig.getHeight()); 2149 Rect dst = new Rect(0, 0, scaledWidth, scaledHeight); 2150 2151 // center the image 2152 dst.offset((w - scaledWidth) / 2, (h - scaledHeight) / 2); 2153 2154 canvas.drawBitmap(orig, src, dst, null); 2155 mOutlineHelper.applyMediumExpensiveOutlineWithBlur(b, canvas, outlineColor, outlineColor, 2156 clipAlpha); 2157 canvas.setBitmap(null); 2158 2159 return b; 2160 } 2161 2162 void startDrag(CellLayout.CellInfo cellInfo) { 2163 View child = cellInfo.cell; 2164 2165 // Make sure the drag was started by a long press as opposed to a long click. 2166 if (!child.isInTouchMode()) { 2167 return; 2168 } 2169 2170 mDragInfo = cellInfo; 2171 child.setVisibility(INVISIBLE); 2172 CellLayout layout = (CellLayout) child.getParent().getParent(); 2173 layout.prepareChildForDrag(child); 2174 2175 child.clearFocus(); 2176 child.setPressed(false); 2177 2178 final Canvas canvas = new Canvas(); 2179 2180 // The outline is used to visualize where the item will land if dropped 2181 mDragOutline = createDragOutline(child, canvas, DRAG_BITMAP_PADDING); 2182 beginDragShared(child, this); 2183 } 2184 2185 public void beginDragShared(View child, DragSource source) { 2186 // The drag bitmap follows the touch point around on the screen 2187 final Bitmap b = createDragBitmap(child, new Canvas(), DRAG_BITMAP_PADDING); 2188 2189 final int bmpWidth = b.getWidth(); 2190 final int bmpHeight = b.getHeight(); 2191 2192 float scale = mLauncher.getDragLayer().getLocationInDragLayer(child, mTempXY); 2193 int dragLayerX = 2194 Math.round(mTempXY[0] - (bmpWidth - scale * child.getWidth()) / 2); 2195 int dragLayerY = 2196 Math.round(mTempXY[1] - (bmpHeight - scale * bmpHeight) / 2 2197 - DRAG_BITMAP_PADDING / 2); 2198 2199 LauncherAppState app = LauncherAppState.getInstance(); 2200 DeviceProfile grid = app.getDynamicGrid().getDeviceProfile(); 2201 Point dragVisualizeOffset = null; 2202 Rect dragRect = null; 2203 if (child instanceof BubbleTextView || child instanceof PagedViewIcon) { 2204 int iconSize = grid.iconSizePx; 2205 int top = child.getPaddingTop(); 2206 int left = (bmpWidth - iconSize) / 2; 2207 int right = left + iconSize; 2208 int bottom = top + iconSize; 2209 dragLayerY += top; 2210 // Note: The drag region is used to calculate drag layer offsets, but the 2211 // dragVisualizeOffset in addition to the dragRect (the size) to position the outline. 2212 dragVisualizeOffset = new Point(-DRAG_BITMAP_PADDING / 2, DRAG_BITMAP_PADDING / 2); 2213 dragRect = new Rect(left, top, right, bottom); 2214 } else if (child instanceof FolderIcon) { 2215 int previewSize = grid.folderIconSizePx; 2216 dragRect = new Rect(0, child.getPaddingTop(), child.getWidth(), previewSize); 2217 } 2218 2219 // Clear the pressed state if necessary 2220 if (child instanceof BubbleTextView) { 2221 BubbleTextView icon = (BubbleTextView) child; 2222 icon.clearPressedOrFocusedBackground(); 2223 } 2224 2225 mDragController.startDrag(b, dragLayerX, dragLayerY, source, child.getTag(), 2226 DragController.DRAG_ACTION_MOVE, dragVisualizeOffset, dragRect, scale); 2227 2228 if (child.getParent() instanceof ShortcutAndWidgetContainer) { 2229 mDragSourceInternal = (ShortcutAndWidgetContainer) child.getParent(); 2230 } 2231 2232 b.recycle(); 2233 } 2234 2235 void addApplicationShortcut(ShortcutInfo info, CellLayout target, long container, long screenId, 2236 int cellX, int cellY, boolean insertAtFirst, int intersectX, int intersectY) { 2237 View view = mLauncher.createShortcut(R.layout.application, target, (ShortcutInfo) info); 2238 2239 final int[] cellXY = new int[2]; 2240 target.findCellForSpanThatIntersects(cellXY, 1, 1, intersectX, intersectY); 2241 addInScreen(view, container, screenId, cellXY[0], cellXY[1], 1, 1, insertAtFirst); 2242 2243 LauncherModel.addOrMoveItemInDatabase(mLauncher, info, container, screenId, cellXY[0], 2244 cellXY[1]); 2245 } 2246 2247 public boolean transitionStateShouldAllowDrop() { 2248 return ((!isSwitchingState() || mTransitionProgress > 0.5f) && mState != State.SMALL); 2249 } 2250 2251 /** 2252 * {@inheritDoc} 2253 */ 2254 public boolean acceptDrop(DragObject d) { 2255 // If it's an external drop (e.g. from All Apps), check if it should be accepted 2256 CellLayout dropTargetLayout = mDropToLayout; 2257 if (d.dragSource != this) { 2258 // Don't accept the drop if we're not over a screen at time of drop 2259 if (dropTargetLayout == null) { 2260 return false; 2261 } 2262 if (!transitionStateShouldAllowDrop()) return false; 2263 2264 mDragViewVisualCenter = getDragViewVisualCenter(d.x, d.y, d.xOffset, d.yOffset, 2265 d.dragView, mDragViewVisualCenter); 2266 2267 // We want the point to be mapped to the dragTarget. 2268 if (mLauncher.isHotseatLayout(dropTargetLayout)) { 2269 mapPointFromSelfToHotseatLayout(mLauncher.getHotseat(), mDragViewVisualCenter); 2270 } else { 2271 mapPointFromSelfToChild(dropTargetLayout, mDragViewVisualCenter, null); 2272 } 2273 2274 int spanX = 1; 2275 int spanY = 1; 2276 if (mDragInfo != null) { 2277 final CellLayout.CellInfo dragCellInfo = mDragInfo; 2278 spanX = dragCellInfo.spanX; 2279 spanY = dragCellInfo.spanY; 2280 } else { 2281 final ItemInfo dragInfo = (ItemInfo) d.dragInfo; 2282 spanX = dragInfo.spanX; 2283 spanY = dragInfo.spanY; 2284 } 2285 2286 int minSpanX = spanX; 2287 int minSpanY = spanY; 2288 if (d.dragInfo instanceof PendingAddWidgetInfo) { 2289 minSpanX = ((PendingAddWidgetInfo) d.dragInfo).minSpanX; 2290 minSpanY = ((PendingAddWidgetInfo) d.dragInfo).minSpanY; 2291 } 2292 2293 mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], 2294 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, dropTargetLayout, 2295 mTargetCell); 2296 float distance = dropTargetLayout.getDistanceFromCell(mDragViewVisualCenter[0], 2297 mDragViewVisualCenter[1], mTargetCell); 2298 if (willCreateUserFolder((ItemInfo) d.dragInfo, dropTargetLayout, 2299 mTargetCell, distance, true)) { 2300 return true; 2301 } 2302 if (willAddToExistingUserFolder((ItemInfo) d.dragInfo, dropTargetLayout, 2303 mTargetCell, distance)) { 2304 return true; 2305 } 2306 2307 int[] resultSpan = new int[2]; 2308 mTargetCell = dropTargetLayout.createArea((int) mDragViewVisualCenter[0], 2309 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, spanX, spanY, 2310 null, mTargetCell, resultSpan, CellLayout.MODE_ACCEPT_DROP); 2311 boolean foundCell = mTargetCell[0] >= 0 && mTargetCell[1] >= 0; 2312 2313 // Don't accept the drop if there's no room for the item 2314 if (!foundCell) { 2315 // Don't show the message if we are dropping on the AllApps button and the hotseat 2316 // is full 2317 boolean isHotseat = mLauncher.isHotseatLayout(dropTargetLayout); 2318 if (mTargetCell != null && isHotseat) { 2319 Hotseat hotseat = mLauncher.getHotseat(); 2320 if (hotseat.isAllAppsButtonRank( 2321 hotseat.getOrderInHotseat(mTargetCell[0], mTargetCell[1]))) { 2322 return false; 2323 } 2324 } 2325 2326 mLauncher.showOutOfSpaceMessage(isHotseat); 2327 return false; 2328 } 2329 } 2330 2331 long screenId = getIdForScreen(dropTargetLayout); 2332 if (screenId == EXTRA_EMPTY_SCREEN_ID) { 2333 commitExtraEmptyScreen(); 2334 } 2335 2336 return true; 2337 } 2338 2339 boolean willCreateUserFolder(ItemInfo info, CellLayout target, int[] targetCell, float 2340 distance, boolean considerTimeout) { 2341 if (distance > mMaxDistanceForFolderCreation) return false; 2342 View dropOverView = target.getChildAt(targetCell[0], targetCell[1]); 2343 2344 if (dropOverView != null) { 2345 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) dropOverView.getLayoutParams(); 2346 if (lp.useTmpCoords && (lp.tmpCellX != lp.cellX || lp.tmpCellY != lp.tmpCellY)) { 2347 return false; 2348 } 2349 } 2350 2351 boolean hasntMoved = false; 2352 if (mDragInfo != null) { 2353 hasntMoved = dropOverView == mDragInfo.cell; 2354 } 2355 2356 if (dropOverView == null || hasntMoved || (considerTimeout && !mCreateUserFolderOnDrop)) { 2357 return false; 2358 } 2359 2360 boolean aboveShortcut = (dropOverView.getTag() instanceof ShortcutInfo); 2361 boolean willBecomeShortcut = 2362 (info.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPLICATION || 2363 info.itemType == LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT); 2364 2365 return (aboveShortcut && willBecomeShortcut); 2366 } 2367 2368 boolean willAddToExistingUserFolder(Object dragInfo, CellLayout target, int[] targetCell, 2369 float distance) { 2370 if (distance > mMaxDistanceForFolderCreation) return false; 2371 View dropOverView = target.getChildAt(targetCell[0], targetCell[1]); 2372 2373 if (dropOverView != null) { 2374 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) dropOverView.getLayoutParams(); 2375 if (lp.useTmpCoords && (lp.tmpCellX != lp.cellX || lp.tmpCellY != lp.tmpCellY)) { 2376 return false; 2377 } 2378 } 2379 2380 if (dropOverView instanceof FolderIcon) { 2381 FolderIcon fi = (FolderIcon) dropOverView; 2382 if (fi.acceptDrop(dragInfo)) { 2383 return true; 2384 } 2385 } 2386 return false; 2387 } 2388 2389 boolean createUserFolderIfNecessary(View newView, long container, CellLayout target, 2390 int[] targetCell, float distance, boolean external, DragView dragView, 2391 Runnable postAnimationRunnable) { 2392 if (distance > mMaxDistanceForFolderCreation) return false; 2393 View v = target.getChildAt(targetCell[0], targetCell[1]); 2394 2395 boolean hasntMoved = false; 2396 if (mDragInfo != null) { 2397 CellLayout cellParent = getParentCellLayoutForView(mDragInfo.cell); 2398 hasntMoved = (mDragInfo.cellX == targetCell[0] && 2399 mDragInfo.cellY == targetCell[1]) && (cellParent == target); 2400 } 2401 2402 if (v == null || hasntMoved || !mCreateUserFolderOnDrop) return false; 2403 mCreateUserFolderOnDrop = false; 2404 final long screenId = (targetCell == null) ? mDragInfo.screenId : getIdForScreen(target); 2405 2406 boolean aboveShortcut = (v.getTag() instanceof ShortcutInfo); 2407 boolean willBecomeShortcut = (newView.getTag() instanceof ShortcutInfo); 2408 2409 if (aboveShortcut && willBecomeShortcut) { 2410 ShortcutInfo sourceInfo = (ShortcutInfo) newView.getTag(); 2411 ShortcutInfo destInfo = (ShortcutInfo) v.getTag(); 2412 // if the drag started here, we need to remove it from the workspace 2413 if (!external) { 2414 getParentCellLayoutForView(mDragInfo.cell).removeView(mDragInfo.cell); 2415 } 2416 2417 Rect folderLocation = new Rect(); 2418 float scale = mLauncher.getDragLayer().getDescendantRectRelativeToSelf(v, folderLocation); 2419 target.removeView(v); 2420 2421 FolderIcon fi = 2422 mLauncher.addFolder(target, container, screenId, targetCell[0], targetCell[1]); 2423 destInfo.cellX = -1; 2424 destInfo.cellY = -1; 2425 sourceInfo.cellX = -1; 2426 sourceInfo.cellY = -1; 2427 2428 // If the dragView is null, we can't animate 2429 boolean animate = dragView != null; 2430 if (animate) { 2431 fi.performCreateAnimation(destInfo, v, sourceInfo, dragView, folderLocation, scale, 2432 postAnimationRunnable); 2433 } else { 2434 fi.addItem(destInfo); 2435 fi.addItem(sourceInfo); 2436 } 2437 return true; 2438 } 2439 return false; 2440 } 2441 2442 boolean addToExistingFolderIfNecessary(View newView, CellLayout target, int[] targetCell, 2443 float distance, DragObject d, boolean external) { 2444 if (distance > mMaxDistanceForFolderCreation) return false; 2445 2446 View dropOverView = target.getChildAt(targetCell[0], targetCell[1]); 2447 if (!mAddToExistingFolderOnDrop) return false; 2448 mAddToExistingFolderOnDrop = false; 2449 2450 if (dropOverView instanceof FolderIcon) { 2451 FolderIcon fi = (FolderIcon) dropOverView; 2452 if (fi.acceptDrop(d.dragInfo)) { 2453 fi.onDrop(d); 2454 2455 // if the drag started here, we need to remove it from the workspace 2456 if (!external) { 2457 getParentCellLayoutForView(mDragInfo.cell).removeView(mDragInfo.cell); 2458 } 2459 return true; 2460 } 2461 } 2462 return false; 2463 } 2464 2465 public void onDrop(final DragObject d) { 2466 mDragViewVisualCenter = getDragViewVisualCenter(d.x, d.y, d.xOffset, d.yOffset, d.dragView, 2467 mDragViewVisualCenter); 2468 2469 CellLayout dropTargetLayout = mDropToLayout; 2470 2471 // We want the point to be mapped to the dragTarget. 2472 if (dropTargetLayout != null) { 2473 if (mLauncher.isHotseatLayout(dropTargetLayout)) { 2474 mapPointFromSelfToHotseatLayout(mLauncher.getHotseat(), mDragViewVisualCenter); 2475 } else { 2476 mapPointFromSelfToChild(dropTargetLayout, mDragViewVisualCenter, null); 2477 } 2478 } 2479 2480 int snapScreen = -1; 2481 boolean resizeOnDrop = false; 2482 if (d.dragSource != this) { 2483 final int[] touchXY = new int[] { (int) mDragViewVisualCenter[0], 2484 (int) mDragViewVisualCenter[1] }; 2485 onDropExternal(touchXY, d.dragInfo, dropTargetLayout, false, d); 2486 } else if (mDragInfo != null) { 2487 final View cell = mDragInfo.cell; 2488 2489 Runnable resizeRunnable = null; 2490 if (dropTargetLayout != null && !d.cancelled) { 2491 // Move internally 2492 boolean hasMovedLayouts = (getParentCellLayoutForView(cell) != dropTargetLayout); 2493 boolean hasMovedIntoHotseat = mLauncher.isHotseatLayout(dropTargetLayout); 2494 long container = hasMovedIntoHotseat ? 2495 LauncherSettings.Favorites.CONTAINER_HOTSEAT : 2496 LauncherSettings.Favorites.CONTAINER_DESKTOP; 2497 long screenId = (mTargetCell[0] < 0) ? 2498 mDragInfo.screenId : getIdForScreen(dropTargetLayout); 2499 int spanX = mDragInfo != null ? mDragInfo.spanX : 1; 2500 int spanY = mDragInfo != null ? mDragInfo.spanY : 1; 2501 // First we find the cell nearest to point at which the item is 2502 // dropped, without any consideration to whether there is an item there. 2503 2504 mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], (int) 2505 mDragViewVisualCenter[1], spanX, spanY, dropTargetLayout, mTargetCell); 2506 float distance = dropTargetLayout.getDistanceFromCell(mDragViewVisualCenter[0], 2507 mDragViewVisualCenter[1], mTargetCell); 2508 2509 // If the item being dropped is a shortcut and the nearest drop 2510 // cell also contains a shortcut, then create a folder with the two shortcuts. 2511 if (!mInScrollArea && createUserFolderIfNecessary(cell, container, 2512 dropTargetLayout, mTargetCell, distance, false, d.dragView, null)) { 2513 stripEmptyScreens(); 2514 return; 2515 } 2516 2517 if (addToExistingFolderIfNecessary(cell, dropTargetLayout, mTargetCell, 2518 distance, d, false)) { 2519 stripEmptyScreens(); 2520 return; 2521 } 2522 2523 // Aside from the special case where we're dropping a shortcut onto a shortcut, 2524 // we need to find the nearest cell location that is vacant 2525 ItemInfo item = (ItemInfo) d.dragInfo; 2526 int minSpanX = item.spanX; 2527 int minSpanY = item.spanY; 2528 if (item.minSpanX > 0 && item.minSpanY > 0) { 2529 minSpanX = item.minSpanX; 2530 minSpanY = item.minSpanY; 2531 } 2532 2533 int[] resultSpan = new int[2]; 2534 mTargetCell = dropTargetLayout.createArea((int) mDragViewVisualCenter[0], 2535 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, spanX, spanY, cell, 2536 mTargetCell, resultSpan, CellLayout.MODE_ON_DROP); 2537 2538 boolean foundCell = mTargetCell[0] >= 0 && mTargetCell[1] >= 0; 2539 2540 // if the widget resizes on drop 2541 if (foundCell && (cell instanceof AppWidgetHostView) && 2542 (resultSpan[0] != item.spanX || resultSpan[1] != item.spanY)) { 2543 resizeOnDrop = true; 2544 item.spanX = resultSpan[0]; 2545 item.spanY = resultSpan[1]; 2546 AppWidgetHostView awhv = (AppWidgetHostView) cell; 2547 AppWidgetResizeFrame.updateWidgetSizeRanges(awhv, mLauncher, resultSpan[0], 2548 resultSpan[1]); 2549 } 2550 2551 if (getScreenIdForPageIndex(mCurrentPage) != screenId && !hasMovedIntoHotseat) { 2552 snapScreen = getPageIndexForScreenId(screenId); 2553 snapToPage(snapScreen); 2554 } 2555 2556 if (foundCell) { 2557 final ItemInfo info = (ItemInfo) cell.getTag(); 2558 if (hasMovedLayouts) { 2559 // Reparent the view 2560 getParentCellLayoutForView(cell).removeView(cell); 2561 addInScreen(cell, container, screenId, mTargetCell[0], mTargetCell[1], 2562 info.spanX, info.spanY); 2563 } 2564 2565 // update the item's position after drop 2566 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) cell.getLayoutParams(); 2567 lp.cellX = lp.tmpCellX = mTargetCell[0]; 2568 lp.cellY = lp.tmpCellY = mTargetCell[1]; 2569 lp.cellHSpan = item.spanX; 2570 lp.cellVSpan = item.spanY; 2571 lp.isLockedToGrid = true; 2572 cell.setId(LauncherModel.getCellLayoutChildId(container, mDragInfo.screenId, 2573 mTargetCell[0], mTargetCell[1], mDragInfo.spanX, mDragInfo.spanY)); 2574 2575 if (container != LauncherSettings.Favorites.CONTAINER_HOTSEAT && 2576 cell instanceof LauncherAppWidgetHostView) { 2577 final CellLayout cellLayout = dropTargetLayout; 2578 // We post this call so that the widget has a chance to be placed 2579 // in its final location 2580 2581 final LauncherAppWidgetHostView hostView = (LauncherAppWidgetHostView) cell; 2582 AppWidgetProviderInfo pinfo = hostView.getAppWidgetInfo(); 2583 if (pinfo != null && 2584 pinfo.resizeMode != AppWidgetProviderInfo.RESIZE_NONE) { 2585 final Runnable addResizeFrame = new Runnable() { 2586 public void run() { 2587 DragLayer dragLayer = mLauncher.getDragLayer(); 2588 dragLayer.addResizeFrame(info, hostView, cellLayout); 2589 } 2590 }; 2591 resizeRunnable = (new Runnable() { 2592 public void run() { 2593 if (!isPageMoving()) { 2594 addResizeFrame.run(); 2595 } else { 2596 mDelayedResizeRunnable = addResizeFrame; 2597 } 2598 } 2599 }); 2600 } 2601 } 2602 2603 LauncherModel.moveItemInDatabase(mLauncher, info, container, screenId, lp.cellX, 2604 lp.cellY); 2605 } else { 2606 // If we can't find a drop location, we return the item to its original position 2607 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) cell.getLayoutParams(); 2608 mTargetCell[0] = lp.cellX; 2609 mTargetCell[1] = lp.cellY; 2610 CellLayout layout = (CellLayout) cell.getParent().getParent(); 2611 layout.markCellsAsOccupiedForView(cell); 2612 } 2613 } 2614 2615 final CellLayout parent = (CellLayout) cell.getParent().getParent(); 2616 final Runnable finalResizeRunnable = resizeRunnable; 2617 // Prepare it to be animated into its new position 2618 // This must be called after the view has been re-parented 2619 final Runnable onCompleteRunnable = new Runnable() { 2620 @Override 2621 public void run() { 2622 mAnimatingViewIntoPlace = false; 2623 updateChildrenLayersEnabled(false); 2624 if (finalResizeRunnable != null) { 2625 finalResizeRunnable.run(); 2626 } 2627 stripEmptyScreens(); 2628 } 2629 }; 2630 mAnimatingViewIntoPlace = true; 2631 if (d.dragView.hasDrawn()) { 2632 final ItemInfo info = (ItemInfo) cell.getTag(); 2633 if (info.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET) { 2634 int animationType = resizeOnDrop ? ANIMATE_INTO_POSITION_AND_RESIZE : 2635 ANIMATE_INTO_POSITION_AND_DISAPPEAR; 2636 animateWidgetDrop(info, parent, d.dragView, 2637 onCompleteRunnable, animationType, cell, false); 2638 } else { 2639 int duration = snapScreen < 0 ? -1 : ADJACENT_SCREEN_DROP_DURATION; 2640 mLauncher.getDragLayer().animateViewIntoPosition(d.dragView, cell, duration, 2641 onCompleteRunnable, this); 2642 } 2643 } else { 2644 d.deferDragViewCleanupPostAnimation = false; 2645 cell.setVisibility(VISIBLE); 2646 } 2647 parent.onDropChild(cell); 2648 } 2649 } 2650 2651 public void setFinalScrollForPageChange(int pageIndex) { 2652 CellLayout cl = (CellLayout) getChildAt(pageIndex); 2653 if (cl != null) { 2654 mSavedScrollX = getScrollX(); 2655 mSavedTranslationX = cl.getTranslationX(); 2656 mSavedRotationY = cl.getRotationY(); 2657 final int newX = getScrollForPage(pageIndex); 2658 setScrollX(newX); 2659 cl.setTranslationX(0f); 2660 cl.setRotationY(0f); 2661 } 2662 } 2663 2664 public void resetFinalScrollForPageChange(int pageIndex) { 2665 if (pageIndex >= 0) { 2666 CellLayout cl = (CellLayout) getChildAt(pageIndex); 2667 setScrollX(mSavedScrollX); 2668 cl.setTranslationX(mSavedTranslationX); 2669 cl.setRotationY(mSavedRotationY); 2670 } 2671 } 2672 2673 public void getViewLocationRelativeToSelf(View v, int[] location) { 2674 getLocationInWindow(location); 2675 int x = location[0]; 2676 int y = location[1]; 2677 2678 v.getLocationInWindow(location); 2679 int vX = location[0]; 2680 int vY = location[1]; 2681 2682 location[0] = vX - x; 2683 location[1] = vY - y; 2684 } 2685 2686 public void onDragEnter(DragObject d) { 2687 mDragEnforcer.onDragEnter(); 2688 mCreateUserFolderOnDrop = false; 2689 mAddToExistingFolderOnDrop = false; 2690 2691 mDropToLayout = null; 2692 CellLayout layout = getCurrentDropLayout(); 2693 setCurrentDropLayout(layout); 2694 setCurrentDragOverlappingLayout(layout); 2695 2696 // Because we don't have space in the Phone UI (the CellLayouts run to the edge) we 2697 // don't need to show the outlines 2698 if (LauncherAppState.getInstance().isScreenLarge()) { 2699 showOutlines(); 2700 } 2701 } 2702 2703 static Rect getCellLayoutMetrics(Launcher launcher, int orientation) { 2704 LauncherAppState app = LauncherAppState.getInstance(); 2705 DeviceProfile grid = app.getDynamicGrid().getDeviceProfile(); 2706 2707 Resources res = launcher.getResources(); 2708 Display display = launcher.getWindowManager().getDefaultDisplay(); 2709 Point smallestSize = new Point(); 2710 Point largestSize = new Point(); 2711 display.getCurrentSizeRange(smallestSize, largestSize); 2712 int countX = (int) grid.numColumns; 2713 int countY = (int) grid.numRows; 2714 if (orientation == CellLayout.LANDSCAPE) { 2715 if (mLandscapeCellLayoutMetrics == null) { 2716 Rect padding = grid.getWorkspacePadding(CellLayout.LANDSCAPE); 2717 int width = largestSize.x - padding.left - padding.right; 2718 int height = smallestSize.y - padding.top - padding.bottom; 2719 mLandscapeCellLayoutMetrics = new Rect(); 2720 CellLayout.getMetrics(mLandscapeCellLayoutMetrics, width, height, 2721 countX, countY); 2722 } 2723 return mLandscapeCellLayoutMetrics; 2724 } else if (orientation == CellLayout.PORTRAIT) { 2725 if (mPortraitCellLayoutMetrics == null) { 2726 Rect padding = grid.getWorkspacePadding(CellLayout.PORTRAIT); 2727 int width = smallestSize.x - padding.left - padding.right; 2728 int height = largestSize.y - padding.top - padding.bottom; 2729 mPortraitCellLayoutMetrics = new Rect(); 2730 CellLayout.getMetrics(mPortraitCellLayoutMetrics, width, height, 2731 countX, countY); 2732 } 2733 return mPortraitCellLayoutMetrics; 2734 } 2735 return null; 2736 } 2737 2738 public void onDragExit(DragObject d) { 2739 mDragEnforcer.onDragExit(); 2740 2741 // Here we store the final page that will be dropped to, if the workspace in fact 2742 // receives the drop 2743 if (mInScrollArea) { 2744 if (isPageMoving()) { 2745 // If the user drops while the page is scrolling, we should use that page as the 2746 // destination instead of the page that is being hovered over. 2747 mDropToLayout = (CellLayout) getPageAt(getNextPage()); 2748 } else { 2749 mDropToLayout = mDragOverlappingLayout; 2750 } 2751 } else { 2752 mDropToLayout = mDragTargetLayout; 2753 } 2754 2755 if (mDragMode == DRAG_MODE_CREATE_FOLDER) { 2756 mCreateUserFolderOnDrop = true; 2757 } else if (mDragMode == DRAG_MODE_ADD_TO_FOLDER) { 2758 mAddToExistingFolderOnDrop = true; 2759 } 2760 2761 // Reset the scroll area and previous drag target 2762 onResetScrollArea(); 2763 setCurrentDropLayout(null); 2764 setCurrentDragOverlappingLayout(null); 2765 2766 mSpringLoadedDragController.cancel(); 2767 2768 if (!mIsPageMoving) { 2769 hideOutlines(); 2770 } 2771 } 2772 2773 void setCurrentDropLayout(CellLayout layout) { 2774 if (mDragTargetLayout != null) { 2775 mDragTargetLayout.revertTempState(); 2776 mDragTargetLayout.onDragExit(); 2777 } 2778 mDragTargetLayout = layout; 2779 if (mDragTargetLayout != null) { 2780 mDragTargetLayout.onDragEnter(); 2781 } 2782 cleanupReorder(true); 2783 cleanupFolderCreation(); 2784 setCurrentDropOverCell(-1, -1); 2785 } 2786 2787 void setCurrentDragOverlappingLayout(CellLayout layout) { 2788 if (mDragOverlappingLayout != null) { 2789 mDragOverlappingLayout.setIsDragOverlapping(false); 2790 } 2791 mDragOverlappingLayout = layout; 2792 if (mDragOverlappingLayout != null) { 2793 mDragOverlappingLayout.setIsDragOverlapping(true); 2794 } 2795 invalidate(); 2796 } 2797 2798 void setCurrentDropOverCell(int x, int y) { 2799 if (x != mDragOverX || y != mDragOverY) { 2800 mDragOverX = x; 2801 mDragOverY = y; 2802 setDragMode(DRAG_MODE_NONE); 2803 } 2804 } 2805 2806 void setDragMode(int dragMode) { 2807 if (dragMode != mDragMode) { 2808 if (dragMode == DRAG_MODE_NONE) { 2809 cleanupAddToFolder(); 2810 // We don't want to cancel the re-order alarm every time the target cell changes 2811 // as this feels to slow / unresponsive. 2812 cleanupReorder(false); 2813 cleanupFolderCreation(); 2814 } else if (dragMode == DRAG_MODE_ADD_TO_FOLDER) { 2815 cleanupReorder(true); 2816 cleanupFolderCreation(); 2817 } else if (dragMode == DRAG_MODE_CREATE_FOLDER) { 2818 cleanupAddToFolder(); 2819 cleanupReorder(true); 2820 } else if (dragMode == DRAG_MODE_REORDER) { 2821 cleanupAddToFolder(); 2822 cleanupFolderCreation(); 2823 } 2824 mDragMode = dragMode; 2825 } 2826 } 2827 2828 private void cleanupFolderCreation() { 2829 if (mDragFolderRingAnimator != null) { 2830 mDragFolderRingAnimator.animateToNaturalState(); 2831 } 2832 mFolderCreationAlarm.cancelAlarm(); 2833 } 2834 2835 private void cleanupAddToFolder() { 2836 if (mDragOverFolderIcon != null) { 2837 mDragOverFolderIcon.onDragExit(null); 2838 mDragOverFolderIcon = null; 2839 } 2840 } 2841 2842 private void cleanupReorder(boolean cancelAlarm) { 2843 // Any pending reorders are canceled 2844 if (cancelAlarm) { 2845 mReorderAlarm.cancelAlarm(); 2846 } 2847 mLastReorderX = -1; 2848 mLastReorderY = -1; 2849 } 2850 2851 /* 2852 * 2853 * Convert the 2D coordinate xy from the parent View's coordinate space to this CellLayout's 2854 * coordinate space. The argument xy is modified with the return result. 2855 * 2856 * if cachedInverseMatrix is not null, this method will just use that matrix instead of 2857 * computing it itself; we use this to avoid redundant matrix inversions in 2858 * findMatchingPageForDragOver 2859 * 2860 */ 2861 void mapPointFromSelfToChild(View v, float[] xy, Matrix cachedInverseMatrix) { 2862 xy[0] = xy[0] - v.getLeft(); 2863 xy[1] = xy[1] - v.getTop(); 2864 } 2865 2866 boolean isPointInSelfOverHotseat(int x, int y, Rect r) { 2867 if (r == null) { 2868 r = new Rect(); 2869 } 2870 mTempPt[0] = x; 2871 mTempPt[1] = y; 2872 mLauncher.getDragLayer().getDescendantCoordRelativeToSelf(this, mTempPt, true); 2873 mLauncher.getHotseat().getHitRect(r); 2874 if (r.contains(mTempPt[0], mTempPt[1])) { 2875 return true; 2876 } 2877 return false; 2878 } 2879 2880 void mapPointFromSelfToHotseatLayout(Hotseat hotseat, float[] xy) { 2881 mTempPt[0] = (int) xy[0]; 2882 mTempPt[1] = (int) xy[1]; 2883 mLauncher.getDragLayer().getDescendantCoordRelativeToSelf(this, mTempPt, true); 2884 mLauncher.getDragLayer().mapCoordInSelfToDescendent(hotseat.getLayout(), mTempPt); 2885 2886 xy[0] = mTempPt[0]; 2887 xy[1] = mTempPt[1]; 2888 } 2889 2890 /* 2891 * 2892 * Convert the 2D coordinate xy from this CellLayout's coordinate space to 2893 * the parent View's coordinate space. The argument xy is modified with the return result. 2894 * 2895 */ 2896 void mapPointFromChildToSelf(View v, float[] xy) { 2897 xy[0] += v.getLeft(); 2898 xy[1] += v.getTop(); 2899 } 2900 2901 static private float squaredDistance(float[] point1, float[] point2) { 2902 float distanceX = point1[0] - point2[0]; 2903 float distanceY = point2[1] - point2[1]; 2904 return distanceX * distanceX + distanceY * distanceY; 2905 } 2906 2907 /* 2908 * 2909 * This method returns the CellLayout that is currently being dragged to. In order to drag 2910 * to a CellLayout, either the touch point must be directly over the CellLayout, or as a second 2911 * strategy, we see if the dragView is overlapping any CellLayout and choose the closest one 2912 * 2913 * Return null if no CellLayout is currently being dragged over 2914 * 2915 */ 2916 private CellLayout findMatchingPageForDragOver( 2917 DragView dragView, float originX, float originY, boolean exact) { 2918 // We loop through all the screens (ie CellLayouts) and see which ones overlap 2919 // with the item being dragged and then choose the one that's closest to the touch point 2920 final int screenCount = getChildCount(); 2921 CellLayout bestMatchingScreen = null; 2922 float smallestDistSoFar = Float.MAX_VALUE; 2923 2924 for (int i = 0; i < screenCount; i++) { 2925 CellLayout cl = (CellLayout) getChildAt(i); 2926 2927 final float[] touchXy = {originX, originY}; 2928 // Transform the touch coordinates to the CellLayout's local coordinates 2929 // If the touch point is within the bounds of the cell layout, we can return immediately 2930 cl.getMatrix().invert(mTempInverseMatrix); 2931 mapPointFromSelfToChild(cl, touchXy, mTempInverseMatrix); 2932 2933 if (touchXy[0] >= 0 && touchXy[0] <= cl.getWidth() && 2934 touchXy[1] >= 0 && touchXy[1] <= cl.getHeight()) { 2935 return cl; 2936 } 2937 2938 if (!exact) { 2939 // Get the center of the cell layout in screen coordinates 2940 final float[] cellLayoutCenter = mTempCellLayoutCenterCoordinates; 2941 cellLayoutCenter[0] = cl.getWidth()/2; 2942 cellLayoutCenter[1] = cl.getHeight()/2; 2943 mapPointFromChildToSelf(cl, cellLayoutCenter); 2944 2945 touchXy[0] = originX; 2946 touchXy[1] = originY; 2947 2948 // Calculate the distance between the center of the CellLayout 2949 // and the touch point 2950 float dist = squaredDistance(touchXy, cellLayoutCenter); 2951 2952 if (dist < smallestDistSoFar) { 2953 smallestDistSoFar = dist; 2954 bestMatchingScreen = cl; 2955 } 2956 } 2957 } 2958 return bestMatchingScreen; 2959 } 2960 2961 // This is used to compute the visual center of the dragView. This point is then 2962 // used to visualize drop locations and determine where to drop an item. The idea is that 2963 // the visual center represents the user's interpretation of where the item is, and hence 2964 // is the appropriate point to use when determining drop location. 2965 private float[] getDragViewVisualCenter(int x, int y, int xOffset, int yOffset, 2966 DragView dragView, float[] recycle) { 2967 float res[]; 2968 if (recycle == null) { 2969 res = new float[2]; 2970 } else { 2971 res = recycle; 2972 } 2973 2974 // First off, the drag view has been shifted in a way that is not represented in the 2975 // x and y values or the x/yOffsets. Here we account for that shift. 2976 x += getResources().getDimensionPixelSize(R.dimen.dragViewOffsetX); 2977 y += getResources().getDimensionPixelSize(R.dimen.dragViewOffsetY); 2978 2979 // These represent the visual top and left of drag view if a dragRect was provided. 2980 // If a dragRect was not provided, then they correspond to the actual view left and 2981 // top, as the dragRect is in that case taken to be the entire dragView. 2982 // R.dimen.dragViewOffsetY. 2983 int left = x - xOffset; 2984 int top = y - yOffset; 2985 2986 // In order to find the visual center, we shift by half the dragRect 2987 res[0] = left + dragView.getDragRegion().width() / 2; 2988 res[1] = top + dragView.getDragRegion().height() / 2; 2989 2990 return res; 2991 } 2992 2993 private boolean isDragWidget(DragObject d) { 2994 return (d.dragInfo instanceof LauncherAppWidgetInfo || 2995 d.dragInfo instanceof PendingAddWidgetInfo); 2996 } 2997 private boolean isExternalDragWidget(DragObject d) { 2998 return d.dragSource != this && isDragWidget(d); 2999 } 3000 3001 public void onDragOver(DragObject d) { 3002 // Skip drag over events while we are dragging over side pages 3003 if (mInScrollArea || mIsSwitchingState || mState == State.SMALL) return; 3004 3005 Rect r = new Rect(); 3006 CellLayout layout = null; 3007 ItemInfo item = (ItemInfo) d.dragInfo; 3008 3009 // Ensure that we have proper spans for the item that we are dropping 3010 if (item.spanX < 0 || item.spanY < 0) throw new RuntimeException("Improper spans found"); 3011 mDragViewVisualCenter = getDragViewVisualCenter(d.x, d.y, d.xOffset, d.yOffset, 3012 d.dragView, mDragViewVisualCenter); 3013 3014 final View child = (mDragInfo == null) ? null : mDragInfo.cell; 3015 // Identify whether we have dragged over a side page 3016 if (isSmall()) { 3017 if (mLauncher.getHotseat() != null && !isExternalDragWidget(d)) { 3018 if (isPointInSelfOverHotseat(d.x, d.y, r)) { 3019 layout = mLauncher.getHotseat().getLayout(); 3020 } 3021 } 3022 if (layout == null) { 3023 layout = findMatchingPageForDragOver(d.dragView, d.x, d.y, false); 3024 } 3025 if (layout != mDragTargetLayout) { 3026 setCurrentDropLayout(layout); 3027 setCurrentDragOverlappingLayout(layout); 3028 3029 boolean isInSpringLoadedMode = (mState == State.SPRING_LOADED); 3030 if (isInSpringLoadedMode) { 3031 if (mLauncher.isHotseatLayout(layout)) { 3032 mSpringLoadedDragController.cancel(); 3033 } else { 3034 mSpringLoadedDragController.setAlarm(mDragTargetLayout); 3035 } 3036 } 3037 } 3038 } else { 3039 // Test to see if we are over the hotseat otherwise just use the current page 3040 if (mLauncher.getHotseat() != null && !isDragWidget(d)) { 3041 if (isPointInSelfOverHotseat(d.x, d.y, r)) { 3042 layout = mLauncher.getHotseat().getLayout(); 3043 } 3044 } 3045 if (layout == null) { 3046 layout = getCurrentDropLayout(); 3047 } 3048 if (layout != mDragTargetLayout) { 3049 setCurrentDropLayout(layout); 3050 setCurrentDragOverlappingLayout(layout); 3051 } 3052 } 3053 3054 // Handle the drag over 3055 if (mDragTargetLayout != null) { 3056 // We want the point to be mapped to the dragTarget. 3057 if (mLauncher.isHotseatLayout(mDragTargetLayout)) { 3058 mapPointFromSelfToHotseatLayout(mLauncher.getHotseat(), mDragViewVisualCenter); 3059 } else { 3060 mapPointFromSelfToChild(mDragTargetLayout, mDragViewVisualCenter, null); 3061 } 3062 3063 ItemInfo info = (ItemInfo) d.dragInfo; 3064 3065 mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], 3066 (int) mDragViewVisualCenter[1], item.spanX, item.spanY, 3067 mDragTargetLayout, mTargetCell); 3068 3069 setCurrentDropOverCell(mTargetCell[0], mTargetCell[1]); 3070 3071 float targetCellDistance = mDragTargetLayout.getDistanceFromCell( 3072 mDragViewVisualCenter[0], mDragViewVisualCenter[1], mTargetCell); 3073 3074 final View dragOverView = mDragTargetLayout.getChildAt(mTargetCell[0], 3075 mTargetCell[1]); 3076 3077 manageFolderFeedback(info, mDragTargetLayout, mTargetCell, 3078 targetCellDistance, dragOverView); 3079 3080 int minSpanX = item.spanX; 3081 int minSpanY = item.spanY; 3082 if (item.minSpanX > 0 && item.minSpanY > 0) { 3083 minSpanX = item.minSpanX; 3084 minSpanY = item.minSpanY; 3085 } 3086 3087 boolean nearestDropOccupied = mDragTargetLayout.isNearestDropLocationOccupied((int) 3088 mDragViewVisualCenter[0], (int) mDragViewVisualCenter[1], item.spanX, 3089 item.spanY, child, mTargetCell); 3090 3091 if (!nearestDropOccupied) { 3092 mDragTargetLayout.visualizeDropLocation(child, mDragOutline, 3093 (int) mDragViewVisualCenter[0], (int) mDragViewVisualCenter[1], 3094 mTargetCell[0], mTargetCell[1], item.spanX, item.spanY, false, 3095 d.dragView.getDragVisualizeOffset(), d.dragView.getDragRegion()); 3096 } else if ((mDragMode == DRAG_MODE_NONE || mDragMode == DRAG_MODE_REORDER) 3097 && !mReorderAlarm.alarmPending() && (mLastReorderX != mTargetCell[0] || 3098 mLastReorderY != mTargetCell[1])) { 3099 3100 // Otherwise, if we aren't adding to or creating a folder and there's no pending 3101 // reorder, then we schedule a reorder 3102 ReorderAlarmListener listener = new ReorderAlarmListener(mDragViewVisualCenter, 3103 minSpanX, minSpanY, item.spanX, item.spanY, d.dragView, child); 3104 mReorderAlarm.setOnAlarmListener(listener); 3105 mReorderAlarm.setAlarm(REORDER_TIMEOUT); 3106 } 3107 3108 if (mDragMode == DRAG_MODE_CREATE_FOLDER || mDragMode == DRAG_MODE_ADD_TO_FOLDER || 3109 !nearestDropOccupied) { 3110 if (mDragTargetLayout != null) { 3111 mDragTargetLayout.revertTempState(); 3112 } 3113 } 3114 } 3115 } 3116 3117 private void manageFolderFeedback(ItemInfo info, CellLayout targetLayout, 3118 int[] targetCell, float distance, View dragOverView) { 3119 boolean userFolderPending = willCreateUserFolder(info, targetLayout, targetCell, distance, 3120 false); 3121 3122 if (mDragMode == DRAG_MODE_NONE && userFolderPending && 3123 !mFolderCreationAlarm.alarmPending()) { 3124 mFolderCreationAlarm.setOnAlarmListener(new 3125 FolderCreationAlarmListener(targetLayout, targetCell[0], targetCell[1])); 3126 mFolderCreationAlarm.setAlarm(FOLDER_CREATION_TIMEOUT); 3127 return; 3128 } 3129 3130 boolean willAddToFolder = 3131 willAddToExistingUserFolder(info, targetLayout, targetCell, distance); 3132 3133 if (willAddToFolder && mDragMode == DRAG_MODE_NONE) { 3134 mDragOverFolderIcon = ((FolderIcon) dragOverView); 3135 mDragOverFolderIcon.onDragEnter(info); 3136 if (targetLayout != null) { 3137 targetLayout.clearDragOutlines(); 3138 } 3139 setDragMode(DRAG_MODE_ADD_TO_FOLDER); 3140 return; 3141 } 3142 3143 if (mDragMode == DRAG_MODE_ADD_TO_FOLDER && !willAddToFolder) { 3144 setDragMode(DRAG_MODE_NONE); 3145 } 3146 if (mDragMode == DRAG_MODE_CREATE_FOLDER && !userFolderPending) { 3147 setDragMode(DRAG_MODE_NONE); 3148 } 3149 3150 return; 3151 } 3152 3153 class FolderCreationAlarmListener implements OnAlarmListener { 3154 CellLayout layout; 3155 int cellX; 3156 int cellY; 3157 3158 public FolderCreationAlarmListener(CellLayout layout, int cellX, int cellY) { 3159 this.layout = layout; 3160 this.cellX = cellX; 3161 this.cellY = cellY; 3162 } 3163 3164 public void onAlarm(Alarm alarm) { 3165 if (mDragFolderRingAnimator == null) { 3166 mDragFolderRingAnimator = new FolderRingAnimator(mLauncher, null); 3167 } 3168 mDragFolderRingAnimator.setCell(cellX, cellY); 3169 mDragFolderRingAnimator.setCellLayout(layout); 3170 mDragFolderRingAnimator.animateToAcceptState(); 3171 layout.showFolderAccept(mDragFolderRingAnimator); 3172 layout.clearDragOutlines(); 3173 setDragMode(DRAG_MODE_CREATE_FOLDER); 3174 } 3175 } 3176 3177 class ReorderAlarmListener implements OnAlarmListener { 3178 float[] dragViewCenter; 3179 int minSpanX, minSpanY, spanX, spanY; 3180 DragView dragView; 3181 View child; 3182 3183 public ReorderAlarmListener(float[] dragViewCenter, int minSpanX, int minSpanY, int spanX, 3184 int spanY, DragView dragView, View child) { 3185 this.dragViewCenter = dragViewCenter; 3186 this.minSpanX = minSpanX; 3187 this.minSpanY = minSpanY; 3188 this.spanX = spanX; 3189 this.spanY = spanY; 3190 this.child = child; 3191 this.dragView = dragView; 3192 } 3193 3194 public void onAlarm(Alarm alarm) { 3195 int[] resultSpan = new int[2]; 3196 mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], 3197 (int) mDragViewVisualCenter[1], spanX, spanY, mDragTargetLayout, mTargetCell); 3198 mLastReorderX = mTargetCell[0]; 3199 mLastReorderY = mTargetCell[1]; 3200 3201 mTargetCell = mDragTargetLayout.createArea((int) mDragViewVisualCenter[0], 3202 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, spanX, spanY, 3203 child, mTargetCell, resultSpan, CellLayout.MODE_DRAG_OVER); 3204 3205 if (mTargetCell[0] < 0 || mTargetCell[1] < 0) { 3206 mDragTargetLayout.revertTempState(); 3207 } else { 3208 setDragMode(DRAG_MODE_REORDER); 3209 } 3210 3211 boolean resize = resultSpan[0] != spanX || resultSpan[1] != spanY; 3212 mDragTargetLayout.visualizeDropLocation(child, mDragOutline, 3213 (int) mDragViewVisualCenter[0], (int) mDragViewVisualCenter[1], 3214 mTargetCell[0], mTargetCell[1], resultSpan[0], resultSpan[1], resize, 3215 dragView.getDragVisualizeOffset(), dragView.getDragRegion()); 3216 } 3217 } 3218 3219 @Override 3220 public void getHitRectRelativeToDragLayer(Rect outRect) { 3221 // We want the workspace to have the whole area of the display (it will find the correct 3222 // cell layout to drop to in the existing drag/drop logic. 3223 mLauncher.getDragLayer().getDescendantRectRelativeToSelf(this, outRect); 3224 } 3225 3226 /** 3227 * Add the item specified by dragInfo to the given layout. 3228 * @return true if successful 3229 */ 3230 public boolean addExternalItemToScreen(ItemInfo dragInfo, CellLayout layout) { 3231 if (layout.findCellForSpan(mTempEstimate, dragInfo.spanX, dragInfo.spanY)) { 3232 onDropExternal(dragInfo.dropPos, (ItemInfo) dragInfo, (CellLayout) layout, false); 3233 return true; 3234 } 3235 mLauncher.showOutOfSpaceMessage(mLauncher.isHotseatLayout(layout)); 3236 return false; 3237 } 3238 3239 private void onDropExternal(int[] touchXY, Object dragInfo, 3240 CellLayout cellLayout, boolean insertAtFirst) { 3241 onDropExternal(touchXY, dragInfo, cellLayout, insertAtFirst, null); 3242 } 3243 3244 /** 3245 * Drop an item that didn't originate on one of the workspace screens. 3246 * It may have come from Launcher (e.g. from all apps or customize), or it may have 3247 * come from another app altogether. 3248 * 3249 * NOTE: This can also be called when we are outside of a drag event, when we want 3250 * to add an item to one of the workspace screens. 3251 */ 3252 private void onDropExternal(final int[] touchXY, final Object dragInfo, 3253 final CellLayout cellLayout, boolean insertAtFirst, DragObject d) { 3254 final Runnable exitSpringLoadedRunnable = new Runnable() { 3255 @Override 3256 public void run() { 3257 mLauncher.exitSpringLoadedDragModeDelayed(true, false, null); 3258 } 3259 }; 3260 3261 ItemInfo info = (ItemInfo) dragInfo; 3262 int spanX = info.spanX; 3263 int spanY = info.spanY; 3264 if (mDragInfo != null) { 3265 spanX = mDragInfo.spanX; 3266 spanY = mDragInfo.spanY; 3267 } 3268 3269 final long container = mLauncher.isHotseatLayout(cellLayout) ? 3270 LauncherSettings.Favorites.CONTAINER_HOTSEAT : 3271 LauncherSettings.Favorites.CONTAINER_DESKTOP; 3272 final long screenId = getIdForScreen(cellLayout); 3273 if (!mLauncher.isHotseatLayout(cellLayout) 3274 && screenId != getScreenIdForPageIndex(mCurrentPage) 3275 && mState != State.SPRING_LOADED) { 3276 snapToScreenId(screenId, null); 3277 } 3278 3279 if (info instanceof PendingAddItemInfo) { 3280 final PendingAddItemInfo pendingInfo = (PendingAddItemInfo) dragInfo; 3281 3282 boolean findNearestVacantCell = true; 3283 if (pendingInfo.itemType == LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT) { 3284 mTargetCell = findNearestArea((int) touchXY[0], (int) touchXY[1], spanX, spanY, 3285 cellLayout, mTargetCell); 3286 float distance = cellLayout.getDistanceFromCell(mDragViewVisualCenter[0], 3287 mDragViewVisualCenter[1], mTargetCell); 3288 if (willCreateUserFolder((ItemInfo) d.dragInfo, cellLayout, mTargetCell, 3289 distance, true) || willAddToExistingUserFolder((ItemInfo) d.dragInfo, 3290 cellLayout, mTargetCell, distance)) { 3291 findNearestVacantCell = false; 3292 } 3293 } 3294 3295 final ItemInfo item = (ItemInfo) d.dragInfo; 3296 boolean updateWidgetSize = false; 3297 if (findNearestVacantCell) { 3298 int minSpanX = item.spanX; 3299 int minSpanY = item.spanY; 3300 if (item.minSpanX > 0 && item.minSpanY > 0) { 3301 minSpanX = item.minSpanX; 3302 minSpanY = item.minSpanY; 3303 } 3304 int[] resultSpan = new int[2]; 3305 mTargetCell = cellLayout.createArea((int) mDragViewVisualCenter[0], 3306 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, info.spanX, info.spanY, 3307 null, mTargetCell, resultSpan, CellLayout.MODE_ON_DROP_EXTERNAL); 3308 3309 if (resultSpan[0] != item.spanX || resultSpan[1] != item.spanY) { 3310 updateWidgetSize = true; 3311 } 3312 item.spanX = resultSpan[0]; 3313 item.spanY = resultSpan[1]; 3314 } 3315 3316 Runnable onAnimationCompleteRunnable = new Runnable() { 3317 @Override 3318 public void run() { 3319 // When dragging and dropping from customization tray, we deal with creating 3320 // widgets/shortcuts/folders in a slightly different way 3321 switch (pendingInfo.itemType) { 3322 case LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET: 3323 int span[] = new int[2]; 3324 span[0] = item.spanX; 3325 span[1] = item.spanY; 3326 mLauncher.addAppWidgetFromDrop((PendingAddWidgetInfo) pendingInfo, 3327 container, screenId, mTargetCell, span, null); 3328 break; 3329 case LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT: 3330 mLauncher.processShortcutFromDrop(pendingInfo.componentName, 3331 container, screenId, mTargetCell, null); 3332 break; 3333 default: 3334 throw new IllegalStateException("Unknown item type: " + 3335 pendingInfo.itemType); 3336 } 3337 } 3338 }; 3339 View finalView = pendingInfo.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET 3340 ? ((PendingAddWidgetInfo) pendingInfo).boundWidget : null; 3341 3342 if (finalView instanceof AppWidgetHostView && updateWidgetSize) { 3343 AppWidgetHostView awhv = (AppWidgetHostView) finalView; 3344 AppWidgetResizeFrame.updateWidgetSizeRanges(awhv, mLauncher, item.spanX, 3345 item.spanY); 3346 } 3347 3348 int animationStyle = ANIMATE_INTO_POSITION_AND_DISAPPEAR; 3349 if (pendingInfo.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET && 3350 ((PendingAddWidgetInfo) pendingInfo).info.configure != null) { 3351 animationStyle = ANIMATE_INTO_POSITION_AND_REMAIN; 3352 } 3353 animateWidgetDrop(info, cellLayout, d.dragView, onAnimationCompleteRunnable, 3354 animationStyle, finalView, true); 3355 } else { 3356 // This is for other drag/drop cases, like dragging from All Apps 3357 View view = null; 3358 3359 switch (info.itemType) { 3360 case LauncherSettings.Favorites.ITEM_TYPE_APPLICATION: 3361 case LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT: 3362 if (info.container == NO_ID && info instanceof AppInfo) { 3363 // Came from all apps -- make a copy 3364 info = new ShortcutInfo((AppInfo) info); 3365 } 3366 view = mLauncher.createShortcut(R.layout.application, cellLayout, 3367 (ShortcutInfo) info); 3368 break; 3369 case LauncherSettings.Favorites.ITEM_TYPE_FOLDER: 3370 view = FolderIcon.fromXml(R.layout.folder_icon, mLauncher, cellLayout, 3371 (FolderInfo) info, mIconCache); 3372 break; 3373 default: 3374 throw new IllegalStateException("Unknown item type: " + info.itemType); 3375 } 3376 3377 // First we find the cell nearest to point at which the item is 3378 // dropped, without any consideration to whether there is an item there. 3379 if (touchXY != null) { 3380 mTargetCell = findNearestArea((int) touchXY[0], (int) touchXY[1], spanX, spanY, 3381 cellLayout, mTargetCell); 3382 float distance = cellLayout.getDistanceFromCell(mDragViewVisualCenter[0], 3383 mDragViewVisualCenter[1], mTargetCell); 3384 d.postAnimationRunnable = exitSpringLoadedRunnable; 3385 if (createUserFolderIfNecessary(view, container, cellLayout, mTargetCell, distance, 3386 true, d.dragView, d.postAnimationRunnable)) { 3387 return; 3388 } 3389 if (addToExistingFolderIfNecessary(view, cellLayout, mTargetCell, distance, d, 3390 true)) { 3391 return; 3392 } 3393 } 3394 3395 if (touchXY != null) { 3396 // when dragging and dropping, just find the closest free spot 3397 mTargetCell = cellLayout.createArea((int) mDragViewVisualCenter[0], 3398 (int) mDragViewVisualCenter[1], 1, 1, 1, 1, 3399 null, mTargetCell, null, CellLayout.MODE_ON_DROP_EXTERNAL); 3400 } else { 3401 cellLayout.findCellForSpan(mTargetCell, 1, 1); 3402 } 3403 addInScreen(view, container, screenId, mTargetCell[0], mTargetCell[1], info.spanX, 3404 info.spanY, insertAtFirst); 3405 cellLayout.onDropChild(view); 3406 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) view.getLayoutParams(); 3407 cellLayout.getShortcutsAndWidgets().measureChild(view); 3408 3409 LauncherModel.addOrMoveItemInDatabase(mLauncher, info, container, screenId, 3410 lp.cellX, lp.cellY); 3411 3412 if (d.dragView != null) { 3413 // We wrap the animation call in the temporary set and reset of the current 3414 // cellLayout to its final transform -- this means we animate the drag view to 3415 // the correct final location. 3416 setFinalTransitionTransform(cellLayout); 3417 mLauncher.getDragLayer().animateViewIntoPosition(d.dragView, view, 3418 exitSpringLoadedRunnable); 3419 resetTransitionTransform(cellLayout); 3420 } 3421 } 3422 } 3423 3424 public Bitmap createWidgetBitmap(ItemInfo widgetInfo, View layout) { 3425 int[] unScaledSize = mLauncher.getWorkspace().estimateItemSize(widgetInfo.spanX, 3426 widgetInfo.spanY, widgetInfo, false); 3427 int visibility = layout.getVisibility(); 3428 layout.setVisibility(VISIBLE); 3429 3430 int width = MeasureSpec.makeMeasureSpec(unScaledSize[0], MeasureSpec.EXACTLY); 3431 int height = MeasureSpec.makeMeasureSpec(unScaledSize[1], MeasureSpec.EXACTLY); 3432 Bitmap b = Bitmap.createBitmap(unScaledSize[0], unScaledSize[1], 3433 Bitmap.Config.ARGB_8888); 3434 Canvas c = new Canvas(b); 3435 3436 layout.measure(width, height); 3437 layout.layout(0, 0, unScaledSize[0], unScaledSize[1]); 3438 layout.draw(c); 3439 c.setBitmap(null); 3440 layout.setVisibility(visibility); 3441 return b; 3442 } 3443 3444 private void getFinalPositionForDropAnimation(int[] loc, float[] scaleXY, 3445 DragView dragView, CellLayout layout, ItemInfo info, int[] targetCell, 3446 boolean external, boolean scale) { 3447 // Now we animate the dragView, (ie. the widget or shortcut preview) into its final 3448 // location and size on the home screen. 3449 int spanX = info.spanX; 3450 int spanY = info.spanY; 3451 3452 Rect r = estimateItemPosition(layout, info, targetCell[0], targetCell[1], spanX, spanY); 3453 loc[0] = r.left; 3454 loc[1] = r.top; 3455 3456 setFinalTransitionTransform(layout); 3457 float cellLayoutScale = 3458 mLauncher.getDragLayer().getDescendantCoordRelativeToSelf(layout, loc, true); 3459 resetTransitionTransform(layout); 3460 3461 float dragViewScaleX; 3462 float dragViewScaleY; 3463 if (scale) { 3464 dragViewScaleX = (1.0f * r.width()) / dragView.getMeasuredWidth(); 3465 dragViewScaleY = (1.0f * r.height()) / dragView.getMeasuredHeight(); 3466 } else { 3467 dragViewScaleX = 1f; 3468 dragViewScaleY = 1f; 3469 } 3470 3471 // The animation will scale the dragView about its center, so we need to center about 3472 // the final location. 3473 loc[0] -= (dragView.getMeasuredWidth() - cellLayoutScale * r.width()) / 2; 3474 loc[1] -= (dragView.getMeasuredHeight() - cellLayoutScale * r.height()) / 2; 3475 3476 scaleXY[0] = dragViewScaleX * cellLayoutScale; 3477 scaleXY[1] = dragViewScaleY * cellLayoutScale; 3478 } 3479 3480 public void animateWidgetDrop(ItemInfo info, CellLayout cellLayout, DragView dragView, 3481 final Runnable onCompleteRunnable, int animationType, final View finalView, 3482 boolean external) { 3483 Rect from = new Rect(); 3484 mLauncher.getDragLayer().getViewRectRelativeToSelf(dragView, from); 3485 3486 int[] finalPos = new int[2]; 3487 float scaleXY[] = new float[2]; 3488 boolean scalePreview = !(info instanceof PendingAddShortcutInfo); 3489 getFinalPositionForDropAnimation(finalPos, scaleXY, dragView, cellLayout, info, mTargetCell, 3490 external, scalePreview); 3491 3492 Resources res = mLauncher.getResources(); 3493 int duration = res.getInteger(R.integer.config_dropAnimMaxDuration) - 200; 3494 3495 // In the case where we've prebound the widget, we remove it from the DragLayer 3496 if (finalView instanceof AppWidgetHostView && external) { 3497 Log.d(TAG, "6557954 Animate widget drop, final view is appWidgetHostView"); 3498 mLauncher.getDragLayer().removeView(finalView); 3499 } 3500 if ((animationType == ANIMATE_INTO_POSITION_AND_RESIZE || external) && finalView != null) { 3501 Bitmap crossFadeBitmap = createWidgetBitmap(info, finalView); 3502 dragView.setCrossFadeBitmap(crossFadeBitmap); 3503 dragView.crossFade((int) (duration * 0.8f)); 3504 } else if (info.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET && external) { 3505 scaleXY[0] = scaleXY[1] = Math.min(scaleXY[0], scaleXY[1]); 3506 } 3507 3508 DragLayer dragLayer = mLauncher.getDragLayer(); 3509 if (animationType == CANCEL_TWO_STAGE_WIDGET_DROP_ANIMATION) { 3510 mLauncher.getDragLayer().animateViewIntoPosition(dragView, finalPos, 0f, 0.1f, 0.1f, 3511 DragLayer.ANIMATION_END_DISAPPEAR, onCompleteRunnable, duration); 3512 } else { 3513 int endStyle; 3514 if (animationType == ANIMATE_INTO_POSITION_AND_REMAIN) { 3515 endStyle = DragLayer.ANIMATION_END_REMAIN_VISIBLE; 3516 } else { 3517 endStyle = DragLayer.ANIMATION_END_DISAPPEAR;; 3518 } 3519 3520 Runnable onComplete = new Runnable() { 3521 @Override 3522 public void run() { 3523 if (finalView != null) { 3524 finalView.setVisibility(VISIBLE); 3525 } 3526 if (onCompleteRunnable != null) { 3527 onCompleteRunnable.run(); 3528 } 3529 } 3530 }; 3531 dragLayer.animateViewIntoPosition(dragView, from.left, from.top, finalPos[0], 3532 finalPos[1], 1, 1, 1, scaleXY[0], scaleXY[1], onComplete, endStyle, 3533 duration, this); 3534 } 3535 } 3536 3537 public void setFinalTransitionTransform(CellLayout layout) { 3538 if (isSwitchingState()) { 3539 mCurrentScale = getScaleX(); 3540 setScaleX(mNewScale); 3541 setScaleY(mNewScale); 3542 } 3543 } 3544 public void resetTransitionTransform(CellLayout layout) { 3545 if (isSwitchingState()) { 3546 setScaleX(mCurrentScale); 3547 setScaleY(mCurrentScale); 3548 } 3549 } 3550 3551 /** 3552 * Return the current {@link CellLayout}, correctly picking the destination 3553 * screen while a scroll is in progress. 3554 */ 3555 public CellLayout getCurrentDropLayout() { 3556 return (CellLayout) getChildAt(getNextPage()); 3557 } 3558 3559 /** 3560 * Return the current CellInfo describing our current drag; this method exists 3561 * so that Launcher can sync this object with the correct info when the activity is created/ 3562 * destroyed 3563 * 3564 */ 3565 public CellLayout.CellInfo getDragInfo() { 3566 return mDragInfo; 3567 } 3568 3569 /** 3570 * Calculate the nearest cell where the given object would be dropped. 3571 * 3572 * pixelX and pixelY should be in the coordinate system of layout 3573 */ 3574 private int[] findNearestArea(int pixelX, int pixelY, 3575 int spanX, int spanY, CellLayout layout, int[] recycle) { 3576 return layout.findNearestArea( 3577 pixelX, pixelY, spanX, spanY, recycle); 3578 } 3579 3580 void setup(DragController dragController) { 3581 mSpringLoadedDragController = new SpringLoadedDragController(mLauncher); 3582 mDragController = dragController; 3583 3584 // hardware layers on children are enabled on startup, but should be disabled until 3585 // needed 3586 updateChildrenLayersEnabled(false); 3587 setWallpaperDimension(); 3588 } 3589 3590 /** 3591 * Called at the end of a drag which originated on the workspace. 3592 */ 3593 public void onDropCompleted(final View target, final DragObject d, 3594 final boolean isFlingToDelete, final boolean success) { 3595 if (mDeferDropAfterUninstall) { 3596 mDeferredAction = new Runnable() { 3597 public void run() { 3598 onDropCompleted(target, d, isFlingToDelete, success); 3599 mDeferredAction = null; 3600 } 3601 }; 3602 return; 3603 } 3604 3605 boolean beingCalledAfterUninstall = mDeferredAction != null; 3606 3607 if (success && !(beingCalledAfterUninstall && !mUninstallSuccessful)) { 3608 if (target != this && mDragInfo != null) { 3609 CellLayout parentCell = getParentCellLayoutForView(mDragInfo.cell); 3610 if (parentCell != null) { 3611 parentCell.removeView(mDragInfo.cell); 3612 } 3613 if (mDragInfo.cell instanceof DropTarget) { 3614 mDragController.removeDropTarget((DropTarget) mDragInfo.cell); 3615 } 3616 // If we move the item to anything not on the Workspace, check if any empty 3617 // screens need to be removed. If we dropped back on the workspace, this will 3618 // be done post drop animation. 3619 stripEmptyScreens(); 3620 } 3621 } else if (mDragInfo != null) { 3622 CellLayout cellLayout; 3623 if (mLauncher.isHotseatLayout(target)) { 3624 cellLayout = mLauncher.getHotseat().getLayout(); 3625 } else { 3626 cellLayout = getScreenWithId(mDragInfo.screenId); 3627 } 3628 cellLayout.onDropChild(mDragInfo.cell); 3629 } 3630 if ((d.cancelled || (beingCalledAfterUninstall && !mUninstallSuccessful)) 3631 && mDragInfo.cell != null) { 3632 mDragInfo.cell.setVisibility(VISIBLE); 3633 } 3634 mDragOutline = null; 3635 mDragInfo = null; 3636 } 3637 3638 public void deferCompleteDropAfterUninstallActivity() { 3639 mDeferDropAfterUninstall = true; 3640 } 3641 3642 /// maybe move this into a smaller part 3643 public void onUninstallActivityReturned(boolean success) { 3644 mDeferDropAfterUninstall = false; 3645 mUninstallSuccessful = success; 3646 if (mDeferredAction != null) { 3647 mDeferredAction.run(); 3648 } 3649 } 3650 3651 void updateItemLocationsInDatabase(CellLayout cl) { 3652 int count = cl.getShortcutsAndWidgets().getChildCount(); 3653 3654 long screenId = getIdForScreen(cl); 3655 int container = Favorites.CONTAINER_DESKTOP; 3656 3657 if (mLauncher.isHotseatLayout(cl)) { 3658 screenId = -1; 3659 container = Favorites.CONTAINER_HOTSEAT; 3660 } 3661 3662 for (int i = 0; i < count; i++) { 3663 View v = cl.getShortcutsAndWidgets().getChildAt(i); 3664 ItemInfo info = (ItemInfo) v.getTag(); 3665 // Null check required as the AllApps button doesn't have an item info 3666 if (info != null && info.requiresDbUpdate) { 3667 info.requiresDbUpdate = false; 3668 LauncherModel.modifyItemInDatabase(mLauncher, info, container, screenId, info.cellX, 3669 info.cellY, info.spanX, info.spanY); 3670 } 3671 } 3672 } 3673 3674 ArrayList<ComponentName> getUniqueComponents(boolean stripDuplicates, ArrayList<ComponentName> duplicates) { 3675 ArrayList<ComponentName> uniqueIntents = new ArrayList<ComponentName>(); 3676 getUniqueIntents((CellLayout) mLauncher.getHotseat().getLayout(), uniqueIntents, duplicates, false); 3677 int count = getChildCount(); 3678 for (int i = 0; i < count; i++) { 3679 CellLayout cl = (CellLayout) getChildAt(i); 3680 getUniqueIntents(cl, uniqueIntents, duplicates, false); 3681 } 3682 return uniqueIntents; 3683 } 3684 3685 void getUniqueIntents(CellLayout cl, ArrayList<ComponentName> uniqueIntents, 3686 ArrayList<ComponentName> duplicates, boolean stripDuplicates) { 3687 int count = cl.getShortcutsAndWidgets().getChildCount(); 3688 3689 ArrayList<View> children = new ArrayList<View>(); 3690 for (int i = 0; i < count; i++) { 3691 View v = cl.getShortcutsAndWidgets().getChildAt(i); 3692 children.add(v); 3693 } 3694 3695 for (int i = 0; i < count; i++) { 3696 View v = children.get(i); 3697 ItemInfo info = (ItemInfo) v.getTag(); 3698 // Null check required as the AllApps button doesn't have an item info 3699 if (info instanceof ShortcutInfo) { 3700 ShortcutInfo si = (ShortcutInfo) info; 3701 ComponentName cn = si.intent.getComponent(); 3702 3703 Uri dataUri = si.intent.getData(); 3704 // If dataUri is not null / empty or if this component isn't one that would 3705 // have previously showed up in the AllApps list, then this is a widget-type 3706 // shortcut, so ignore it. 3707 if (dataUri != null && !dataUri.equals(Uri.EMPTY)) { 3708 continue; 3709 } 3710 3711 if (!uniqueIntents.contains(cn)) { 3712 uniqueIntents.add(cn); 3713 } else { 3714 if (stripDuplicates) { 3715 cl.removeViewInLayout(v); 3716 LauncherModel.deleteItemFromDatabase(mLauncher, si); 3717 } 3718 if (duplicates != null) { 3719 duplicates.add(cn); 3720 } 3721 } 3722 } 3723 if (v instanceof FolderIcon) { 3724 FolderIcon fi = (FolderIcon) v; 3725 ArrayList<View> items = fi.getFolder().getItemsInReadingOrder(); 3726 for (int j = 0; j < items.size(); j++) { 3727 if (items.get(j).getTag() instanceof ShortcutInfo) { 3728 ShortcutInfo si = (ShortcutInfo) items.get(j).getTag(); 3729 ComponentName cn = si.intent.getComponent(); 3730 3731 Uri dataUri = si.intent.getData(); 3732 // If dataUri is not null / empty or if this component isn't one that would 3733 // have previously showed up in the AllApps list, then this is a widget-type 3734 // shortcut, so ignore it. 3735 if (dataUri != null && !dataUri.equals(Uri.EMPTY)) { 3736 continue; 3737 } 3738 3739 if (!uniqueIntents.contains(cn)) { 3740 uniqueIntents.add(cn); 3741 } else { 3742 if (stripDuplicates) { 3743 fi.getFolderInfo().remove(si); 3744 LauncherModel.deleteItemFromDatabase(mLauncher, si); 3745 } 3746 if (duplicates != null) { 3747 duplicates.add(cn); 3748 } 3749 } 3750 } 3751 } 3752 } 3753 } 3754 } 3755 3756 void saveWorkspaceToDb() { 3757 saveWorkspaceScreenToDb((CellLayout) mLauncher.getHotseat().getLayout()); 3758 int count = getChildCount(); 3759 for (int i = 0; i < count; i++) { 3760 CellLayout cl = (CellLayout) getChildAt(i); 3761 saveWorkspaceScreenToDb(cl); 3762 } 3763 } 3764 3765 void saveWorkspaceScreenToDb(CellLayout cl) { 3766 int count = cl.getShortcutsAndWidgets().getChildCount(); 3767 3768 long screenId = getIdForScreen(cl); 3769 int container = Favorites.CONTAINER_DESKTOP; 3770 3771 Hotseat hotseat = mLauncher.getHotseat(); 3772 if (mLauncher.isHotseatLayout(cl)) { 3773 screenId = -1; 3774 container = Favorites.CONTAINER_HOTSEAT; 3775 } 3776 3777 for (int i = 0; i < count; i++) { 3778 View v = cl.getShortcutsAndWidgets().getChildAt(i); 3779 ItemInfo info = (ItemInfo) v.getTag(); 3780 // Null check required as the AllApps button doesn't have an item info 3781 if (info != null) { 3782 int cellX = info.cellX; 3783 int cellY = info.cellY; 3784 if (container == Favorites.CONTAINER_HOTSEAT) { 3785 cellX = hotseat.getCellXFromOrder((int) info.screenId); 3786 cellY = hotseat.getCellYFromOrder((int) info.screenId); 3787 } 3788 LauncherModel.addItemToDatabase(mLauncher, info, container, screenId, cellX, 3789 cellY, false); 3790 } 3791 if (v instanceof FolderIcon) { 3792 FolderIcon fi = (FolderIcon) v; 3793 fi.getFolder().addItemLocationsInDatabase(); 3794 } 3795 } 3796 } 3797 3798 @Override 3799 public boolean supportsFlingToDelete() { 3800 return true; 3801 } 3802 3803 @Override 3804 public void onFlingToDelete(DragObject d, int x, int y, PointF vec) { 3805 // Do nothing 3806 } 3807 3808 @Override 3809 public void onFlingToDeleteCompleted() { 3810 // Do nothing 3811 } 3812 3813 public boolean isDropEnabled() { 3814 return true; 3815 } 3816 3817 @Override 3818 protected void onRestoreInstanceState(Parcelable state) { 3819 super.onRestoreInstanceState(state); 3820 Launcher.setScreen(mCurrentPage); 3821 } 3822 3823 @Override 3824 protected void dispatchRestoreInstanceState(SparseArray<Parcelable> container) { 3825 // We don't dispatch restoreInstanceState to our children using this code path. 3826 // Some pages will be restored immediately as their items are bound immediately, and 3827 // others we will need to wait until after their items are bound. 3828 mSavedStates = container; 3829 } 3830 3831 public void restoreInstanceStateForChild(int child) { 3832 if (mSavedStates != null) { 3833 mRestoredPages.add(child); 3834 CellLayout cl = (CellLayout) getChildAt(child); 3835 cl.restoreInstanceState(mSavedStates); 3836 } 3837 } 3838 3839 public void restoreInstanceStateForRemainingPages() { 3840 int count = getChildCount(); 3841 for (int i = 0; i < count; i++) { 3842 if (!mRestoredPages.contains(i)) { 3843 restoreInstanceStateForChild(i); 3844 } 3845 } 3846 mRestoredPages.clear(); 3847 } 3848 3849 @Override 3850 public void scrollLeft() { 3851 if (!isSmall() && !mIsSwitchingState) { 3852 super.scrollLeft(); 3853 } 3854 Folder openFolder = getOpenFolder(); 3855 if (openFolder != null) { 3856 openFolder.completeDragExit(); 3857 } 3858 } 3859 3860 @Override 3861 public void scrollRight() { 3862 if (!isSmall() && !mIsSwitchingState) { 3863 super.scrollRight(); 3864 } 3865 Folder openFolder = getOpenFolder(); 3866 if (openFolder != null) { 3867 openFolder.completeDragExit(); 3868 } 3869 } 3870 3871 @Override 3872 public boolean onEnterScrollArea(int x, int y, int direction) { 3873 // Ignore the scroll area if we are dragging over the hot seat 3874 boolean isPortrait = !LauncherAppState.isScreenLandscape(getContext()); 3875 if (mLauncher.getHotseat() != null && isPortrait) { 3876 Rect r = new Rect(); 3877 mLauncher.getHotseat().getHitRect(r); 3878 if (r.contains(x, y)) { 3879 return false; 3880 } 3881 } 3882 3883 boolean result = false; 3884 if (!isSmall() && !mIsSwitchingState && getOpenFolder() == null) { 3885 mInScrollArea = true; 3886 3887 final int page = getNextPage() + 3888 (direction == DragController.SCROLL_LEFT ? -1 : 1); 3889 // We always want to exit the current layout to ensure parity of enter / exit 3890 setCurrentDropLayout(null); 3891 3892 if (0 <= page && page < getChildCount()) { 3893 // Ensure that we are not dragging over to the custom content screen 3894 if (getScreenIdForPageIndex(page) == CUSTOM_CONTENT_SCREEN_ID) { 3895 return false; 3896 } 3897 3898 CellLayout layout = (CellLayout) getChildAt(page); 3899 setCurrentDragOverlappingLayout(layout); 3900 3901 // Workspace is responsible for drawing the edge glow on adjacent pages, 3902 // so we need to redraw the workspace when this may have changed. 3903 invalidate(); 3904 result = true; 3905 } 3906 } 3907 return result; 3908 } 3909 3910 @Override 3911 public boolean onExitScrollArea() { 3912 boolean result = false; 3913 if (mInScrollArea) { 3914 invalidate(); 3915 CellLayout layout = getCurrentDropLayout(); 3916 setCurrentDropLayout(layout); 3917 setCurrentDragOverlappingLayout(layout); 3918 3919 result = true; 3920 mInScrollArea = false; 3921 } 3922 return result; 3923 } 3924 3925 private void onResetScrollArea() { 3926 setCurrentDragOverlappingLayout(null); 3927 mInScrollArea = false; 3928 } 3929 3930 /** 3931 * Returns a specific CellLayout 3932 */ 3933 CellLayout getParentCellLayoutForView(View v) { 3934 ArrayList<CellLayout> layouts = getWorkspaceAndHotseatCellLayouts(); 3935 for (CellLayout layout : layouts) { 3936 if (layout.getShortcutsAndWidgets().indexOfChild(v) > -1) { 3937 return layout; 3938 } 3939 } 3940 return null; 3941 } 3942 3943 /** 3944 * Returns a list of all the CellLayouts in the workspace. 3945 */ 3946 ArrayList<CellLayout> getWorkspaceAndHotseatCellLayouts() { 3947 ArrayList<CellLayout> layouts = new ArrayList<CellLayout>(); 3948 int screenCount = getChildCount(); 3949 for (int screen = 0; screen < screenCount; screen++) { 3950 layouts.add(((CellLayout) getChildAt(screen))); 3951 } 3952 if (mLauncher.getHotseat() != null) { 3953 layouts.add(mLauncher.getHotseat().getLayout()); 3954 } 3955 return layouts; 3956 } 3957 3958 /** 3959 * We should only use this to search for specific children. Do not use this method to modify 3960 * ShortcutsAndWidgetsContainer directly. Includes ShortcutAndWidgetContainers from 3961 * the hotseat and workspace pages 3962 */ 3963 ArrayList<ShortcutAndWidgetContainer> getAllShortcutAndWidgetContainers() { 3964 ArrayList<ShortcutAndWidgetContainer> childrenLayouts = 3965 new ArrayList<ShortcutAndWidgetContainer>(); 3966 int screenCount = getChildCount(); 3967 for (int screen = 0; screen < screenCount; screen++) { 3968 childrenLayouts.add(((CellLayout) getChildAt(screen)).getShortcutsAndWidgets()); 3969 } 3970 if (mLauncher.getHotseat() != null) { 3971 childrenLayouts.add(mLauncher.getHotseat().getLayout().getShortcutsAndWidgets()); 3972 } 3973 return childrenLayouts; 3974 } 3975 3976 public Folder getFolderForTag(Object tag) { 3977 ArrayList<ShortcutAndWidgetContainer> childrenLayouts = 3978 getAllShortcutAndWidgetContainers(); 3979 for (ShortcutAndWidgetContainer layout: childrenLayouts) { 3980 int count = layout.getChildCount(); 3981 for (int i = 0; i < count; i++) { 3982 View child = layout.getChildAt(i); 3983 if (child instanceof Folder) { 3984 Folder f = (Folder) child; 3985 if (f.getInfo() == tag && f.getInfo().opened) { 3986 return f; 3987 } 3988 } 3989 } 3990 } 3991 return null; 3992 } 3993 3994 public View getViewForTag(Object tag) { 3995 ArrayList<ShortcutAndWidgetContainer> childrenLayouts = 3996 getAllShortcutAndWidgetContainers(); 3997 for (ShortcutAndWidgetContainer layout: childrenLayouts) { 3998 int count = layout.getChildCount(); 3999 for (int i = 0; i < count; i++) { 4000 View child = layout.getChildAt(i); 4001 if (child.getTag() == tag) { 4002 return child; 4003 } 4004 } 4005 } 4006 return null; 4007 } 4008 4009 void clearDropTargets() { 4010 ArrayList<ShortcutAndWidgetContainer> childrenLayouts = 4011 getAllShortcutAndWidgetContainers(); 4012 for (ShortcutAndWidgetContainer layout: childrenLayouts) { 4013 int childCount = layout.getChildCount(); 4014 for (int j = 0; j < childCount; j++) { 4015 View v = layout.getChildAt(j); 4016 if (v instanceof DropTarget) { 4017 mDragController.removeDropTarget((DropTarget) v); 4018 } 4019 } 4020 } 4021 } 4022 4023 // Removes ALL items that match a given package name, this is usually called when a package 4024 // has been removed and we want to remove all components (widgets, shortcuts, apps) that 4025 // belong to that package. 4026 void removeItemsByPackageName(final ArrayList<String> packages) { 4027 final HashSet<String> packageNames = new HashSet<String>(); 4028 packageNames.addAll(packages); 4029 4030 // Filter out all the ItemInfos that this is going to affect 4031 final HashSet<ItemInfo> infos = new HashSet<ItemInfo>(); 4032 final HashSet<ComponentName> cns = new HashSet<ComponentName>(); 4033 ArrayList<CellLayout> cellLayouts = getWorkspaceAndHotseatCellLayouts(); 4034 for (CellLayout layoutParent : cellLayouts) { 4035 ViewGroup layout = layoutParent.getShortcutsAndWidgets(); 4036 int childCount = layout.getChildCount(); 4037 for (int i = 0; i < childCount; ++i) { 4038 View view = layout.getChildAt(i); 4039 infos.add((ItemInfo) view.getTag()); 4040 } 4041 } 4042 LauncherModel.ItemInfoFilter filter = new LauncherModel.ItemInfoFilter() { 4043 @Override 4044 public boolean filterItem(ItemInfo parent, ItemInfo info, 4045 ComponentName cn) { 4046 if (packageNames.contains(cn.getPackageName())) { 4047 cns.add(cn); 4048 return true; 4049 } 4050 return false; 4051 } 4052 }; 4053 LauncherModel.filterItemInfos(infos, filter); 4054 4055 // Remove the affected components 4056 removeItemsByComponentName(cns); 4057 } 4058 4059 // Removes items that match the application info specified, when applications are removed 4060 // as a part of an update, this is called to ensure that other widgets and application 4061 // shortcuts are not removed. 4062 void removeItemsByApplicationInfo(final ArrayList<AppInfo> appInfos) { 4063 // Just create a hash table of all the specific components that this will affect 4064 HashSet<ComponentName> cns = new HashSet<ComponentName>(); 4065 for (AppInfo info : appInfos) { 4066 cns.add(info.componentName); 4067 } 4068 4069 // Remove all the things 4070 removeItemsByComponentName(cns); 4071 } 4072 4073 void removeItemsByComponentName(final HashSet<ComponentName> componentNames) { 4074 ArrayList<CellLayout> cellLayouts = getWorkspaceAndHotseatCellLayouts(); 4075 for (final CellLayout layoutParent: cellLayouts) { 4076 final ViewGroup layout = layoutParent.getShortcutsAndWidgets(); 4077 4078 final HashMap<ItemInfo, View> children = new HashMap<ItemInfo, View>(); 4079 for (int j = 0; j < layout.getChildCount(); j++) { 4080 final View view = layout.getChildAt(j); 4081 children.put((ItemInfo) view.getTag(), view); 4082 } 4083 4084 final ArrayList<View> childrenToRemove = new ArrayList<View>(); 4085 final HashMap<FolderInfo, ArrayList<ShortcutInfo>> folderAppsToRemove = 4086 new HashMap<FolderInfo, ArrayList<ShortcutInfo>>(); 4087 LauncherModel.ItemInfoFilter filter = new LauncherModel.ItemInfoFilter() { 4088 @Override 4089 public boolean filterItem(ItemInfo parent, ItemInfo info, 4090 ComponentName cn) { 4091 if (parent instanceof FolderInfo) { 4092 if (componentNames.contains(cn)) { 4093 FolderInfo folder = (FolderInfo) parent; 4094 ArrayList<ShortcutInfo> appsToRemove; 4095 if (folderAppsToRemove.containsKey(folder)) { 4096 appsToRemove = folderAppsToRemove.get(folder); 4097 } else { 4098 appsToRemove = new ArrayList<ShortcutInfo>(); 4099 folderAppsToRemove.put(folder, appsToRemove); 4100 } 4101 appsToRemove.add((ShortcutInfo) info); 4102 return true; 4103 } 4104 } else { 4105 if (componentNames.contains(cn)) { 4106 childrenToRemove.add(children.get(info)); 4107 return true; 4108 } 4109 } 4110 return false; 4111 } 4112 }; 4113 LauncherModel.filterItemInfos(children.keySet(), filter); 4114 4115 // Remove all the apps from their folders 4116 for (FolderInfo folder : folderAppsToRemove.keySet()) { 4117 ArrayList<ShortcutInfo> appsToRemove = folderAppsToRemove.get(folder); 4118 for (ShortcutInfo info : appsToRemove) { 4119 folder.remove(info); 4120 } 4121 } 4122 4123 // Remove all the other children 4124 for (View child : childrenToRemove) { 4125 // Note: We can not remove the view directly from CellLayoutChildren as this 4126 // does not re-mark the spaces as unoccupied. 4127 layoutParent.removeViewInLayout(child); 4128 if (child instanceof DropTarget) { 4129 mDragController.removeDropTarget((DropTarget) child); 4130 } 4131 } 4132 4133 if (childrenToRemove.size() > 0) { 4134 layout.requestLayout(); 4135 layout.invalidate(); 4136 } 4137 } 4138 4139 // Strip all the empty screens 4140 stripEmptyScreens(); 4141 } 4142 4143 void updateShortcuts(ArrayList<AppInfo> apps) { 4144 ArrayList<ShortcutAndWidgetContainer> childrenLayouts = getAllShortcutAndWidgetContainers(); 4145 for (ShortcutAndWidgetContainer layout: childrenLayouts) { 4146 int childCount = layout.getChildCount(); 4147 for (int j = 0; j < childCount; j++) { 4148 final View view = layout.getChildAt(j); 4149 Object tag = view.getTag(); 4150 4151 if (LauncherModel.isShortcutInfoUpdateable((ItemInfo) tag)) { 4152 ShortcutInfo info = (ShortcutInfo) tag; 4153 4154 final Intent intent = info.intent; 4155 final ComponentName name = intent.getComponent(); 4156 final int appCount = apps.size(); 4157 for (int k = 0; k < appCount; k++) { 4158 AppInfo app = apps.get(k); 4159 if (app.componentName.equals(name)) { 4160 BubbleTextView shortcut = (BubbleTextView) view; 4161 info.updateIcon(mIconCache); 4162 info.title = app.title.toString(); 4163 shortcut.applyFromShortcutInfo(info, mIconCache); 4164 } 4165 } 4166 } 4167 } 4168 } 4169 } 4170 4171 private void moveToScreen(int page, boolean animate) { 4172 if (!isSmall()) { 4173 if (animate) { 4174 snapToPage(page); 4175 } else { 4176 setCurrentPage(page); 4177 } 4178 } 4179 View child = getChildAt(page); 4180 if (child != null) { 4181 child.requestFocus(); 4182 } 4183 } 4184 4185 void moveToDefaultScreen(boolean animate) { 4186 moveToScreen(mDefaultPage, animate); 4187 } 4188 4189 void moveToCustomContentScreen(boolean animate) { 4190 if (hasCustomContent()) { 4191 int ccIndex = getPageIndexForScreenId(CUSTOM_CONTENT_SCREEN_ID); 4192 if (animate) { 4193 snapToPage(ccIndex); 4194 } else { 4195 setCurrentPage(ccIndex); 4196 } 4197 View child = getChildAt(ccIndex); 4198 if (child != null) { 4199 child.requestFocus(); 4200 } 4201 } 4202 } 4203 4204 @Override 4205 protected int getPageIndicatorMarker(int pageIndex) { 4206 if (getScreenIdForPageIndex(pageIndex) == CUSTOM_CONTENT_SCREEN_ID) { 4207 return R.layout.custom_content_page_indicator_marker; 4208 } 4209 return super.getPageIndicatorMarker(pageIndex); 4210 } 4211 4212 @Override 4213 public void syncPages() { 4214 } 4215 4216 @Override 4217 public void syncPageItems(int page, boolean immediate) { 4218 } 4219 4220 protected String getCurrentPageDescription() { 4221 int page = (mNextPage != INVALID_PAGE) ? mNextPage : mCurrentPage; 4222 return String.format(getContext().getString(R.string.workspace_scroll_format), 4223 page + 1, getChildCount()); 4224 } 4225 4226 public void getLocationInDragLayer(int[] loc) { 4227 mLauncher.getDragLayer().getLocationInDragLayer(this, loc); 4228 } 4229} 4230