Workspace.java revision d6214a7a639ef0cb70467c75cd09737c05589e1f
1/* 2 * Copyright (C) 2008 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17package com.android.launcher3; 18 19import android.animation.Animator; 20import android.animation.AnimatorListenerAdapter; 21import android.animation.AnimatorSet; 22import android.animation.LayoutTransition; 23import android.animation.ObjectAnimator; 24import android.animation.TimeInterpolator; 25import android.animation.ValueAnimator; 26import android.animation.ValueAnimator.AnimatorUpdateListener; 27import android.app.WallpaperManager; 28import android.appwidget.AppWidgetHostView; 29import android.appwidget.AppWidgetProviderInfo; 30import android.content.ComponentName; 31import android.content.Context; 32import android.content.Intent; 33import android.content.res.Resources; 34import android.content.res.TypedArray; 35import android.graphics.Bitmap; 36import android.graphics.Canvas; 37import android.graphics.Matrix; 38import android.graphics.Point; 39import android.graphics.PointF; 40import android.graphics.Rect; 41import android.graphics.Region.Op; 42import android.graphics.drawable.Drawable; 43import android.net.Uri; 44import android.os.IBinder; 45import android.os.Parcelable; 46import android.util.AttributeSet; 47import android.util.Log; 48import android.util.SparseArray; 49import android.view.Choreographer; 50import android.view.Display; 51import android.view.MotionEvent; 52import android.view.View; 53import android.view.ViewGroup; 54import android.view.ViewParent; 55import android.view.animation.DecelerateInterpolator; 56import android.view.animation.Interpolator; 57import android.widget.TextView; 58 59import com.android.launcher3.FolderIcon.FolderRingAnimator; 60import com.android.launcher3.Launcher.CustomContentCallbacks; 61import com.android.launcher3.LauncherSettings.Favorites; 62 63import java.util.ArrayList; 64import java.util.HashMap; 65import java.util.HashSet; 66import java.util.Iterator; 67 68/** 69 * The workspace is a wide area with a wallpaper and a finite number of pages. 70 * Each page contains a number of icons, folders or widgets the user can 71 * interact with. A workspace is meant to be used with a fixed width only. 72 */ 73public class Workspace extends SmoothPagedView 74 implements DropTarget, DragSource, DragScroller, View.OnTouchListener, 75 DragController.DragListener, LauncherTransitionable, ViewGroup.OnHierarchyChangeListener, 76 Insettable { 77 private static final String TAG = "Launcher.Workspace"; 78 79 // Y rotation to apply to the workspace screens 80 private static final float WORKSPACE_OVERSCROLL_ROTATION = 24f; 81 82 private static final int CHILDREN_OUTLINE_FADE_OUT_DELAY = 0; 83 private static final int CHILDREN_OUTLINE_FADE_OUT_DURATION = 375; 84 private static final int CHILDREN_OUTLINE_FADE_IN_DURATION = 100; 85 86 private static final int BACKGROUND_FADE_OUT_DURATION = 350; 87 private static final int ADJACENT_SCREEN_DROP_DURATION = 300; 88 private static final int FLING_THRESHOLD_VELOCITY = 500; 89 90 private static final float ALPHA_CUTOFF_THRESHOLD = 0.01f; 91 92 // These animators are used to fade the children's outlines 93 private ObjectAnimator mChildrenOutlineFadeInAnimation; 94 private ObjectAnimator mChildrenOutlineFadeOutAnimation; 95 private float mChildrenOutlineAlpha = 0; 96 97 // These properties refer to the background protection gradient used for AllApps and Customize 98 private ValueAnimator mBackgroundFadeInAnimation; 99 private ValueAnimator mBackgroundFadeOutAnimation; 100 private Drawable mBackground; 101 boolean mDrawBackground = true; 102 private float mBackgroundAlpha = 0; 103 104 private static final long CUSTOM_CONTENT_GESTURE_DELAY = 200; 105 private long mTouchDownTime = -1; 106 private long mCustomContentShowTime = -1; 107 108 private LayoutTransition mLayoutTransition; 109 private final WallpaperManager mWallpaperManager; 110 private IBinder mWindowToken; 111 112 private int mOriginalDefaultPage; 113 private int mDefaultPage; 114 115 private ShortcutAndWidgetContainer mDragSourceInternal; 116 117 // The screen id used for the empty screen always present to the right. 118 private final static long EXTRA_EMPTY_SCREEN_ID = -201; 119 private final static long CUSTOM_CONTENT_SCREEN_ID = -301; 120 121 private HashMap<Long, CellLayout> mWorkspaceScreens = new HashMap<Long, CellLayout>(); 122 private ArrayList<Long> mScreenOrder = new ArrayList<Long>(); 123 124 /** 125 * CellInfo for the cell that is currently being dragged 126 */ 127 private CellLayout.CellInfo mDragInfo; 128 129 /** 130 * Target drop area calculated during last acceptDrop call. 131 */ 132 private int[] mTargetCell = new int[2]; 133 private int mDragOverX = -1; 134 private int mDragOverY = -1; 135 136 static Rect mLandscapeCellLayoutMetrics = null; 137 static Rect mPortraitCellLayoutMetrics = null; 138 139 CustomContentCallbacks mCustomContentCallbacks; 140 boolean mCustomContentShowing; 141 private float mLastCustomContentScrollProgress = -1f; 142 143 /** 144 * The CellLayout that is currently being dragged over 145 */ 146 private CellLayout mDragTargetLayout = null; 147 /** 148 * The CellLayout that we will show as glowing 149 */ 150 private CellLayout mDragOverlappingLayout = null; 151 152 /** 153 * The CellLayout which will be dropped to 154 */ 155 private CellLayout mDropToLayout = null; 156 157 private Launcher mLauncher; 158 private IconCache mIconCache; 159 private DragController mDragController; 160 161 // These are temporary variables to prevent having to allocate a new object just to 162 // return an (x, y) value from helper functions. Do NOT use them to maintain other state. 163 private int[] mTempCell = new int[2]; 164 private int[] mTempPt = new int[2]; 165 private int[] mTempEstimate = new int[2]; 166 private float[] mDragViewVisualCenter = new float[2]; 167 private float[] mTempCellLayoutCenterCoordinates = new float[2]; 168 private Matrix mTempInverseMatrix = new Matrix(); 169 170 private SpringLoadedDragController mSpringLoadedDragController; 171 private float mSpringLoadedShrinkFactor; 172 private float mOverviewModeShrinkFactor; 173 174 // State variable that indicates whether the pages are small (ie when you're 175 // in all apps or customize mode) 176 177 enum State { NORMAL, SPRING_LOADED, SMALL, OVERVIEW}; 178 private State mState = State.NORMAL; 179 private boolean mIsSwitchingState = false; 180 181 boolean mAnimatingViewIntoPlace = false; 182 boolean mIsDragOccuring = false; 183 boolean mChildrenLayersEnabled = true; 184 185 private boolean mStripScreensOnPageStopMoving = false; 186 187 /** Is the user is dragging an item near the edge of a page? */ 188 private boolean mInScrollArea = false; 189 190 private HolographicOutlineHelper mOutlineHelper; 191 private Bitmap mDragOutline = null; 192 private final Rect mTempRect = new Rect(); 193 private final int[] mTempXY = new int[2]; 194 private int[] mTempVisiblePagesRange = new int[2]; 195 private boolean mOverscrollTransformsSet; 196 public static final int DRAG_BITMAP_PADDING = 2; 197 private boolean mWorkspaceFadeInAdjacentScreens; 198 199 WallpaperOffsetInterpolator mWallpaperOffset; 200 private Runnable mDelayedResizeRunnable; 201 private Runnable mDelayedSnapToPageRunnable; 202 private Point mDisplaySize = new Point(); 203 private int mCameraDistance; 204 205 // Variables relating to the creation of user folders by hovering shortcuts over shortcuts 206 private static final int FOLDER_CREATION_TIMEOUT = 0; 207 private static final int REORDER_TIMEOUT = 250; 208 private final Alarm mFolderCreationAlarm = new Alarm(); 209 private final Alarm mReorderAlarm = new Alarm(); 210 private FolderRingAnimator mDragFolderRingAnimator = null; 211 private FolderIcon mDragOverFolderIcon = null; 212 private boolean mCreateUserFolderOnDrop = false; 213 private boolean mAddToExistingFolderOnDrop = false; 214 private DropTarget.DragEnforcer mDragEnforcer; 215 private float mMaxDistanceForFolderCreation; 216 217 // Variables relating to touch disambiguation (scrolling workspace vs. scrolling a widget) 218 private float mXDown; 219 private float mYDown; 220 final static float START_DAMPING_TOUCH_SLOP_ANGLE = (float) Math.PI / 6; 221 final static float MAX_SWIPE_ANGLE = (float) Math.PI / 3; 222 final static float TOUCH_SLOP_DAMPING_FACTOR = 4; 223 224 // Relating to the animation of items being dropped externally 225 public static final int ANIMATE_INTO_POSITION_AND_DISAPPEAR = 0; 226 public static final int ANIMATE_INTO_POSITION_AND_REMAIN = 1; 227 public static final int ANIMATE_INTO_POSITION_AND_RESIZE = 2; 228 public static final int COMPLETE_TWO_STAGE_WIDGET_DROP_ANIMATION = 3; 229 public static final int CANCEL_TWO_STAGE_WIDGET_DROP_ANIMATION = 4; 230 231 // Related to dragging, folder creation and reordering 232 private static final int DRAG_MODE_NONE = 0; 233 private static final int DRAG_MODE_CREATE_FOLDER = 1; 234 private static final int DRAG_MODE_ADD_TO_FOLDER = 2; 235 private static final int DRAG_MODE_REORDER = 3; 236 private int mDragMode = DRAG_MODE_NONE; 237 private int mLastReorderX = -1; 238 private int mLastReorderY = -1; 239 240 private SparseArray<Parcelable> mSavedStates; 241 private final ArrayList<Integer> mRestoredPages = new ArrayList<Integer>(); 242 243 // These variables are used for storing the initial and final values during workspace animations 244 private int mSavedScrollX; 245 private float mSavedRotationY; 246 private float mSavedTranslationX; 247 248 private float mCurrentScale; 249 private float mNewScale; 250 private float[] mOldBackgroundAlphas; 251 private float[] mOldAlphas; 252 private float[] mNewBackgroundAlphas; 253 private float[] mNewAlphas; 254 private int mLastChildCount = -1; 255 private float mTransitionProgress; 256 257 private Runnable mDeferredAction; 258 private boolean mDeferDropAfterUninstall; 259 private boolean mUninstallSuccessful; 260 261 private final Runnable mBindPages = new Runnable() { 262 @Override 263 public void run() { 264 mLauncher.getModel().bindRemainingSynchronousPages(); 265 } 266 }; 267 268 /** 269 * Used to inflate the Workspace from XML. 270 * 271 * @param context The application's context. 272 * @param attrs The attributes set containing the Workspace's customization values. 273 */ 274 public Workspace(Context context, AttributeSet attrs) { 275 this(context, attrs, 0); 276 } 277 278 /** 279 * Used to inflate the Workspace from XML. 280 * 281 * @param context The application's context. 282 * @param attrs The attributes set containing the Workspace's customization values. 283 * @param defStyle Unused. 284 */ 285 public Workspace(Context context, AttributeSet attrs, int defStyle) { 286 super(context, attrs, defStyle); 287 mContentIsRefreshable = false; 288 289 mOutlineHelper = HolographicOutlineHelper.obtain(context); 290 291 mDragEnforcer = new DropTarget.DragEnforcer(context); 292 // With workspace, data is available straight from the get-go 293 setDataIsReady(); 294 295 mLauncher = (Launcher) context; 296 final Resources res = getResources(); 297 mWorkspaceFadeInAdjacentScreens = res.getBoolean(R.bool.config_workspaceFadeAdjacentScreens); 298 mFadeInAdjacentScreens = false; 299 mWallpaperManager = WallpaperManager.getInstance(context); 300 301 TypedArray a = context.obtainStyledAttributes(attrs, 302 R.styleable.Workspace, defStyle, 0); 303 mSpringLoadedShrinkFactor = 304 res.getInteger(R.integer.config_workspaceSpringLoadShrinkPercentage) / 100.0f; 305 mOverviewModeShrinkFactor = 306 res.getInteger(R.integer.config_workspaceOverviewShrinkPercentage) / 100.0f; 307 mCameraDistance = res.getInteger(R.integer.config_cameraDistance); 308 mOriginalDefaultPage = mDefaultPage = a.getInt(R.styleable.Workspace_defaultScreen, 1); 309 a.recycle(); 310 311 setOnHierarchyChangeListener(this); 312 setHapticFeedbackEnabled(false); 313 314 initWorkspace(); 315 316 // Disable multitouch across the workspace/all apps/customize tray 317 setMotionEventSplittingEnabled(true); 318 319 // Unless otherwise specified this view is important for accessibility. 320 if (getImportantForAccessibility() == View.IMPORTANT_FOR_ACCESSIBILITY_AUTO) { 321 setImportantForAccessibility(View.IMPORTANT_FOR_ACCESSIBILITY_YES); 322 } 323 } 324 325 @Override 326 public void setInsets(Rect insets) { 327 mInsets.set(insets); 328 } 329 330 // estimate the size of a widget with spans hSpan, vSpan. return MAX_VALUE for each 331 // dimension if unsuccessful 332 public int[] estimateItemSize(int hSpan, int vSpan, 333 ItemInfo itemInfo, boolean springLoaded) { 334 int[] size = new int[2]; 335 if (getChildCount() > 0) { 336 CellLayout cl = (CellLayout) mLauncher.getWorkspace().getChildAt(0); 337 Rect r = estimateItemPosition(cl, itemInfo, 0, 0, hSpan, vSpan); 338 size[0] = r.width(); 339 size[1] = r.height(); 340 if (springLoaded) { 341 size[0] *= mSpringLoadedShrinkFactor; 342 size[1] *= mSpringLoadedShrinkFactor; 343 } 344 return size; 345 } else { 346 size[0] = Integer.MAX_VALUE; 347 size[1] = Integer.MAX_VALUE; 348 return size; 349 } 350 } 351 352 public Rect estimateItemPosition(CellLayout cl, ItemInfo pendingInfo, 353 int hCell, int vCell, int hSpan, int vSpan) { 354 Rect r = new Rect(); 355 cl.cellToRect(hCell, vCell, hSpan, vSpan, r); 356 return r; 357 } 358 359 public void onDragStart(final DragSource source, Object info, int dragAction) { 360 mIsDragOccuring = true; 361 updateChildrenLayersEnabled(false); 362 mLauncher.lockScreenOrientation(); 363 setChildrenBackgroundAlphaMultipliers(1f); 364 // Prevent any Un/InstallShortcutReceivers from updating the db while we are dragging 365 InstallShortcutReceiver.enableInstallQueue(); 366 UninstallShortcutReceiver.enableUninstallQueue(); 367 post(new Runnable() { 368 @Override 369 public void run() { 370 if (mIsDragOccuring) { 371 addExtraEmptyScreenOnDrag(); 372 } 373 } 374 }); 375 } 376 377 public void onDragEnd() { 378 mIsDragOccuring = false; 379 updateChildrenLayersEnabled(false); 380 mLauncher.unlockScreenOrientation(false); 381 382 // Re-enable any Un/InstallShortcutReceiver and now process any queued items 383 InstallShortcutReceiver.disableAndFlushInstallQueue(getContext()); 384 UninstallShortcutReceiver.disableAndFlushUninstallQueue(getContext()); 385 386 removeExtraEmptyScreen(); 387 mDragSourceInternal = null; 388 } 389 390 /** 391 * Initializes various states for this workspace. 392 */ 393 protected void initWorkspace() { 394 Context context = getContext(); 395 mCurrentPage = mDefaultPage; 396 Launcher.setScreen(mCurrentPage); 397 LauncherAppState app = LauncherAppState.getInstance(); 398 DeviceProfile grid = app.getDynamicGrid().getDeviceProfile(); 399 mIconCache = app.getIconCache(); 400 setWillNotDraw(false); 401 setClipChildren(false); 402 setClipToPadding(false); 403 setChildrenDrawnWithCacheEnabled(true); 404 setMinScale(0.5f); 405 setupLayoutTransition(); 406 407 final Resources res = getResources(); 408 try { 409 mBackground = res.getDrawable(R.drawable.apps_customize_bg); 410 } catch (Resources.NotFoundException e) { 411 // In this case, we will skip drawing background protection 412 } 413 414 mWallpaperOffset = new WallpaperOffsetInterpolator(); 415 Display display = mLauncher.getWindowManager().getDefaultDisplay(); 416 display.getSize(mDisplaySize); 417 418 mMaxDistanceForFolderCreation = (0.55f * grid.iconSizePx); 419 mFlingThresholdVelocity = (int) (FLING_THRESHOLD_VELOCITY * mDensity); 420 } 421 422 private void setupLayoutTransition() { 423 // We want to show layout transitions when pages are deleted, to close the gap. 424 mLayoutTransition = new LayoutTransition(); 425 mLayoutTransition.enableTransitionType(LayoutTransition.DISAPPEARING); 426 mLayoutTransition.enableTransitionType(LayoutTransition.CHANGE_DISAPPEARING); 427 mLayoutTransition.disableTransitionType(LayoutTransition.APPEARING); 428 mLayoutTransition.disableTransitionType(LayoutTransition.CHANGE_APPEARING); 429 setLayoutTransition(mLayoutTransition); 430 } 431 432 @Override 433 protected int getScrollMode() { 434 return SmoothPagedView.X_LARGE_MODE; 435 } 436 437 @Override 438 public void onChildViewAdded(View parent, View child) { 439 if (!(child instanceof CellLayout)) { 440 throw new IllegalArgumentException("A Workspace can only have CellLayout children."); 441 } 442 CellLayout cl = ((CellLayout) child); 443 cl.setOnInterceptTouchListener(this); 444 cl.setClickable(true); 445 cl.setContentDescription(getContext().getString( 446 R.string.workspace_description_format, getChildCount())); 447 448 super.onChildViewAdded(parent, child); 449 } 450 451 protected boolean shouldDrawChild(View child) { 452 final CellLayout cl = (CellLayout) child; 453 return super.shouldDrawChild(child) && 454 (cl.getShortcutsAndWidgets().getAlpha() > 0 || 455 cl.getBackgroundAlpha() > 0); 456 } 457 458 /** 459 * @return The open folder on the current screen, or null if there is none 460 */ 461 Folder getOpenFolder() { 462 DragLayer dragLayer = mLauncher.getDragLayer(); 463 int count = dragLayer.getChildCount(); 464 for (int i = 0; i < count; i++) { 465 View child = dragLayer.getChildAt(i); 466 if (child instanceof Folder) { 467 Folder folder = (Folder) child; 468 if (folder.getInfo().opened) 469 return folder; 470 } 471 } 472 return null; 473 } 474 475 boolean isTouchActive() { 476 return mTouchState != TOUCH_STATE_REST; 477 } 478 479 public void removeAllWorkspaceScreens() { 480 Launcher.addDumpLog(TAG, "10249126 - removeAllWorkspaceScreens()", true); 481 // Remove the pages and clear the screen models 482 removeAllViews(); 483 mScreenOrder.clear(); 484 mWorkspaceScreens.clear(); 485 } 486 487 public long insertNewWorkspaceScreenBeforeEmptyScreen(long screenId) { 488 // Find the index to insert this view into. If the empty screen exists, then 489 // insert it before that. 490 int insertIndex = mScreenOrder.indexOf(EXTRA_EMPTY_SCREEN_ID); 491 Launcher.addDumpLog(TAG, "10249126 - insertNewWorkspaceScreenBeforeEmptyScreen(" + insertIndex + ")", true); 492 if (insertIndex < 0) { 493 insertIndex = mScreenOrder.size(); 494 } 495 return insertNewWorkspaceScreen(screenId, insertIndex); 496 } 497 498 public long insertNewWorkspaceScreen(long screenId) { 499 return insertNewWorkspaceScreen(screenId, getChildCount()); 500 } 501 502 public long insertNewWorkspaceScreen(long screenId, int insertIndex) { 503 String log = "10249126 - insertNewWorkspaceScreen(" + screenId + ", " + insertIndex + ")"; 504 Launcher.addDumpLog(TAG, log, true); 505 506 if (mWorkspaceScreens.containsKey(screenId)) { 507 throw new RuntimeException("Screen id " + screenId + " already exists!"); 508 } 509 510 CellLayout newScreen = (CellLayout) 511 mLauncher.getLayoutInflater().inflate(R.layout.workspace_screen, null); 512 513 newScreen.setOnLongClickListener(mLongClickListener); 514 newScreen.setOnClickListener(mLauncher); 515 newScreen.setSoundEffectsEnabled(false); 516 mWorkspaceScreens.put(screenId, newScreen); 517 mScreenOrder.add(insertIndex, screenId); 518 addView(newScreen, insertIndex); 519 return screenId; 520 } 521 522 public void createCustomContentPage() { 523 Launcher.addDumpLog(TAG, "10249126 - createCustomContentPage()", true); 524 CellLayout customScreen = (CellLayout) 525 mLauncher.getLayoutInflater().inflate(R.layout.workspace_screen, null); 526 527 mWorkspaceScreens.put(CUSTOM_CONTENT_SCREEN_ID, customScreen); 528 mScreenOrder.add(0, CUSTOM_CONTENT_SCREEN_ID); 529 530 // We want no padding on the custom content 531 customScreen.setPadding(0, 0, 0, 0); 532 533 addFullScreenPage(customScreen); 534 535 // Ensure that the current page and default page are maintained. 536 mDefaultPage = mOriginalDefaultPage + 1; 537 setCurrentPage(getCurrentPage() + 1); 538 } 539 540 public void addToCustomContentPage(View customContent, CustomContentCallbacks callbacks) { 541 if (getPageIndexForScreenId(CUSTOM_CONTENT_SCREEN_ID) < 0) { 542 throw new RuntimeException("Expected custom content screen to exist"); 543 } 544 545 // Add the custom content to the full screen custom page 546 CellLayout customScreen = getScreenWithId(CUSTOM_CONTENT_SCREEN_ID); 547 int spanX = customScreen.getCountX(); 548 int spanY = customScreen.getCountY(); 549 CellLayout.LayoutParams lp = new CellLayout.LayoutParams(0, 0, spanX, spanY); 550 lp.canReorder = false; 551 lp.isFullscreen = true; 552 if (customContent instanceof Insettable) { 553 ((Insettable)customContent).setInsets(mInsets); 554 } 555 customScreen.addViewToCellLayout(customContent, 0, 0, lp, true); 556 557 mCustomContentCallbacks = callbacks; 558 } 559 560 public void addExtraEmptyScreenOnDrag() { 561 boolean lastChildOnScreen = false; 562 boolean childOnFinalScreen = false; 563 564 if (mDragSourceInternal != null) { 565 if (mDragSourceInternal.getChildCount() == 1) { 566 lastChildOnScreen = true; 567 } 568 CellLayout cl = (CellLayout) mDragSourceInternal.getParent(); 569 if (indexOfChild(cl) == getChildCount() - 1) { 570 childOnFinalScreen = true; 571 } 572 } 573 574 // If this is the last item on the final screen 575 if (lastChildOnScreen && childOnFinalScreen) { 576 return; 577 } 578 if (!mWorkspaceScreens.containsKey(EXTRA_EMPTY_SCREEN_ID)) { 579 insertNewWorkspaceScreen(EXTRA_EMPTY_SCREEN_ID); 580 } 581 } 582 583 public boolean addExtraEmptyScreen() { 584 if (!mWorkspaceScreens.containsKey(EXTRA_EMPTY_SCREEN_ID)) { 585 insertNewWorkspaceScreen(EXTRA_EMPTY_SCREEN_ID); 586 return true; 587 } 588 return false; 589 } 590 591 public void removeExtraEmptyScreen() { 592 int nScreens = getChildCount(); 593 nScreens = hasCustomContent() ? nScreens - 1 : nScreens; 594 595 if (mWorkspaceScreens.containsKey(EXTRA_EMPTY_SCREEN_ID) && nScreens > 1) { 596 CellLayout cl = mWorkspaceScreens.get(EXTRA_EMPTY_SCREEN_ID); 597 mWorkspaceScreens.remove(EXTRA_EMPTY_SCREEN_ID); 598 mScreenOrder.remove(EXTRA_EMPTY_SCREEN_ID); 599 removeView(cl); 600 } 601 } 602 603 public long commitExtraEmptyScreen() { 604 Launcher.addDumpLog(TAG, "10249126 - commitExtraEmptyScreen()", true); 605 606 // Write all the logs to disk 607 Launcher.addDumpLog(TAG, "10249126 - commitExtraEmptyScreen() - dumping logs to disk", true); 608 mLauncher.dumpLogsToLocalData(false); 609 610 CellLayout cl = mWorkspaceScreens.get(EXTRA_EMPTY_SCREEN_ID); 611 mWorkspaceScreens.remove(EXTRA_EMPTY_SCREEN_ID); 612 mScreenOrder.remove(EXTRA_EMPTY_SCREEN_ID); 613 614 long newId = LauncherAppState.getLauncherProvider().generateNewScreenId(); 615 mWorkspaceScreens.put(newId, cl); 616 mScreenOrder.add(newId); 617 618 // Update the model for the new screen 619 mLauncher.getModel().updateWorkspaceScreenOrder(mLauncher, mScreenOrder); 620 621 return newId; 622 } 623 624 625 public CellLayout getScreenWithId(long screenId) { 626 Launcher.addDumpLog(TAG, "10249126 - getScreenWithId(" + screenId + ")", true); 627 CellLayout layout = mWorkspaceScreens.get(screenId); 628 return layout; 629 } 630 631 public long getIdForScreen(CellLayout layout) { 632 Launcher.addDumpLog(TAG, "10249126 - getIdForScreen()", true); 633 Iterator<Long> iter = mWorkspaceScreens.keySet().iterator(); 634 while (iter.hasNext()) { 635 long id = iter.next(); 636 if (mWorkspaceScreens.get(id) == layout) { 637 return id; 638 } 639 } 640 return -1; 641 } 642 643 public int getPageIndexForScreenId(long screenId) { 644 Launcher.addDumpLog(TAG, "10249126 - getPageIndexForScreenId(" + screenId + ")", true); 645 return indexOfChild(mWorkspaceScreens.get(screenId)); 646 } 647 648 public long getScreenIdForPageIndex(int index) { 649 if (0 <= index && index < mScreenOrder.size()) { 650 return mScreenOrder.get(index); 651 } 652 return -1; 653 } 654 655 public boolean hasNonCustomEmptyScreens() { 656 Launcher.addDumpLog(TAG, "10249126 - hasNonCustomEmptyScreens()", true); 657 Iterator<Long> iter = mWorkspaceScreens.keySet().iterator(); 658 while (iter.hasNext()) { 659 long id = iter.next(); 660 if (id >= 0) { 661 return true; 662 } 663 } 664 return false; 665 } 666 667 ArrayList<Long> getScreenOrder() { 668 return mScreenOrder; 669 } 670 671 public void stripEmptyScreens() { 672 if (isPageMoving()) { 673 mStripScreensOnPageStopMoving = true; 674 return; 675 } 676 677 Launcher.addDumpLog(TAG, "10249126 - stripEmptyScreens()", true); 678 679 int currentPage = getNextPage(); 680 ArrayList<Long> removeScreens = new ArrayList<Long>(); 681 for (Long id: mWorkspaceScreens.keySet()) { 682 CellLayout cl = mWorkspaceScreens.get(id); 683 if (id >= 0 && cl.getShortcutsAndWidgets().getChildCount() == 0) { 684 removeScreens.add(id); 685 } 686 } 687 688 // We enforce at least one page to add new items to. In the case that we remove the last 689 // such screen, we convert the last screen to the empty screen 690 int minScreens = hasCustomContent() ? 2 : 1; 691 692 int pageShift = 0; 693 for (Long id: removeScreens) { 694 Launcher.addDumpLog(TAG, "10249126 - \tremove(" + id + ")", true); 695 CellLayout cl = mWorkspaceScreens.get(id); 696 mWorkspaceScreens.remove(id); 697 mScreenOrder.remove(id); 698 699 if (getChildCount() > minScreens) { 700 if (indexOfChild(cl) < currentPage) { 701 pageShift++; 702 } 703 removeView(cl); 704 } else { 705 // if this is the last non-custom content screen, convert it to the empty screen 706 mWorkspaceScreens.put(EXTRA_EMPTY_SCREEN_ID, cl); 707 mScreenOrder.add(EXTRA_EMPTY_SCREEN_ID); 708 } 709 } 710 711 if (!removeScreens.isEmpty()) { 712 // Update the model if we have changed any screens 713 mLauncher.getModel().updateWorkspaceScreenOrder(mLauncher, mScreenOrder); 714 } 715 716 if (pageShift >= 0) { 717 setCurrentPage(currentPage - pageShift); 718 } 719 } 720 721 // See implementation for parameter definition. 722 void addInScreen(View child, long container, long screenId, 723 int x, int y, int spanX, int spanY) { 724 addInScreen(child, container, screenId, x, y, spanX, spanY, false, false); 725 } 726 727 // At bind time, we use the rank (screenId) to compute x and y for hotseat items. 728 // See implementation for parameter definition. 729 void addInScreenFromBind(View child, long container, long screenId, int x, int y, 730 int spanX, int spanY) { 731 addInScreen(child, container, screenId, x, y, spanX, spanY, false, true); 732 } 733 734 // See implementation for parameter definition. 735 void addInScreen(View child, long container, long screenId, int x, int y, int spanX, int spanY, 736 boolean insert) { 737 addInScreen(child, container, screenId, x, y, spanX, spanY, insert, false); 738 } 739 740 /** 741 * Adds the specified child in the specified screen. The position and dimension of 742 * the child are defined by x, y, spanX and spanY. 743 * 744 * @param child The child to add in one of the workspace's screens. 745 * @param screenId The screen in which to add the child. 746 * @param x The X position of the child in the screen's grid. 747 * @param y The Y position of the child in the screen's grid. 748 * @param spanX The number of cells spanned horizontally by the child. 749 * @param spanY The number of cells spanned vertically by the child. 750 * @param insert When true, the child is inserted at the beginning of the children list. 751 * @param computeXYFromRank When true, we use the rank (stored in screenId) to compute 752 * the x and y position in which to place hotseat items. Otherwise 753 * we use the x and y position to compute the rank. 754 */ 755 void addInScreen(View child, long container, long screenId, int x, int y, int spanX, int spanY, 756 boolean insert, boolean computeXYFromRank) { 757 if (container == LauncherSettings.Favorites.CONTAINER_DESKTOP) { 758 if (getScreenWithId(screenId) == null) { 759 Log.e(TAG, "Skipping child, screenId " + screenId + " not found"); 760 // DEBUGGING - Print out the stack trace to see where we are adding from 761 new Throwable().printStackTrace(); 762 return; 763 } 764 } 765 if (screenId == EXTRA_EMPTY_SCREEN_ID) { 766 // This should never happen 767 throw new RuntimeException("Screen id should not be EXTRA_EMPTY_SCREEN_ID"); 768 } 769 770 final CellLayout layout; 771 if (container == LauncherSettings.Favorites.CONTAINER_HOTSEAT) { 772 layout = mLauncher.getHotseat().getLayout(); 773 child.setOnKeyListener(null); 774 775 // Hide folder title in the hotseat 776 if (child instanceof FolderIcon) { 777 ((FolderIcon) child).setTextVisible(false); 778 } 779 780 if (computeXYFromRank) { 781 x = mLauncher.getHotseat().getCellXFromOrder((int) screenId); 782 y = mLauncher.getHotseat().getCellYFromOrder((int) screenId); 783 } else { 784 screenId = mLauncher.getHotseat().getOrderInHotseat(x, y); 785 } 786 } else { 787 // Show folder title if not in the hotseat 788 if (child instanceof FolderIcon) { 789 ((FolderIcon) child).setTextVisible(true); 790 } 791 layout = getScreenWithId(screenId); 792 child.setOnKeyListener(new IconKeyEventListener()); 793 } 794 795 ViewGroup.LayoutParams genericLp = child.getLayoutParams(); 796 CellLayout.LayoutParams lp; 797 if (genericLp == null || !(genericLp instanceof CellLayout.LayoutParams)) { 798 lp = new CellLayout.LayoutParams(x, y, spanX, spanY); 799 } else { 800 lp = (CellLayout.LayoutParams) genericLp; 801 lp.cellX = x; 802 lp.cellY = y; 803 lp.cellHSpan = spanX; 804 lp.cellVSpan = spanY; 805 } 806 807 if (spanX < 0 && spanY < 0) { 808 lp.isLockedToGrid = false; 809 } 810 811 // Get the canonical child id to uniquely represent this view in this screen 812 int childId = LauncherModel.getCellLayoutChildId(container, screenId, x, y, spanX, spanY); 813 boolean markCellsAsOccupied = !(child instanceof Folder); 814 if (!layout.addViewToCellLayout(child, insert ? 0 : -1, childId, lp, markCellsAsOccupied)) { 815 // TODO: This branch occurs when the workspace is adding views 816 // outside of the defined grid 817 // maybe we should be deleting these items from the LauncherModel? 818 Launcher.addDumpLog(TAG, "Failed to add to item at (" + lp.cellX + "," + lp.cellY + ") to CellLayout", true); 819 } 820 821 if (!(child instanceof Folder)) { 822 child.setHapticFeedbackEnabled(false); 823 child.setOnLongClickListener(mLongClickListener); 824 } 825 if (child instanceof DropTarget) { 826 mDragController.addDropTarget((DropTarget) child); 827 } 828 } 829 830 /** 831 * Called directly from a CellLayout (not by the framework), after we've been added as a 832 * listener via setOnInterceptTouchEventListener(). This allows us to tell the CellLayout 833 * that it should intercept touch events, which is not something that is normally supported. 834 */ 835 @Override 836 public boolean onTouch(View v, MotionEvent event) { 837 return (isSmall() || !isFinishedSwitchingState()) 838 || (!isSmall() && indexOfChild(v) != mCurrentPage); 839 } 840 841 public boolean isSwitchingState() { 842 return mIsSwitchingState; 843 } 844 845 /** This differs from isSwitchingState in that we take into account how far the transition 846 * has completed. */ 847 public boolean isFinishedSwitchingState() { 848 return !mIsSwitchingState || (mTransitionProgress > 0.5f); 849 } 850 851 protected void onWindowVisibilityChanged (int visibility) { 852 mLauncher.onWindowVisibilityChanged(visibility); 853 if (mCustomContentShowing && mCustomContentCallbacks != null) { 854 if (visibility == View.VISIBLE) { 855 mCustomContentCallbacks.onShow(); 856 } else if (visibility == View.GONE) { 857 mCustomContentCallbacks.onHide(); 858 } 859 } 860 } 861 862 @Override 863 public boolean dispatchUnhandledMove(View focused, int direction) { 864 if (isSmall() || !isFinishedSwitchingState()) { 865 // when the home screens are shrunken, shouldn't allow side-scrolling 866 return false; 867 } 868 return super.dispatchUnhandledMove(focused, direction); 869 } 870 871 @Override 872 public boolean onInterceptTouchEvent(MotionEvent ev) { 873 switch (ev.getAction() & MotionEvent.ACTION_MASK) { 874 case MotionEvent.ACTION_DOWN: 875 mXDown = ev.getX(); 876 mYDown = ev.getY(); 877 mTouchDownTime = System.currentTimeMillis(); 878 break; 879 case MotionEvent.ACTION_POINTER_UP: 880 case MotionEvent.ACTION_UP: 881 if (mTouchState == TOUCH_STATE_REST) { 882 final CellLayout currentPage = (CellLayout) getChildAt(mCurrentPage); 883 if (!currentPage.lastDownOnOccupiedCell()) { 884 onWallpaperTap(ev); 885 } 886 } 887 } 888 return super.onInterceptTouchEvent(ev); 889 } 890 891 protected void reinflateWidgetsIfNecessary() { 892 final int clCount = getChildCount(); 893 for (int i = 0; i < clCount; i++) { 894 CellLayout cl = (CellLayout) getChildAt(i); 895 ShortcutAndWidgetContainer swc = cl.getShortcutsAndWidgets(); 896 final int itemCount = swc.getChildCount(); 897 for (int j = 0; j < itemCount; j++) { 898 View v = swc.getChildAt(j); 899 900 if (v.getTag() instanceof LauncherAppWidgetInfo) { 901 LauncherAppWidgetInfo info = (LauncherAppWidgetInfo) v.getTag(); 902 LauncherAppWidgetHostView lahv = (LauncherAppWidgetHostView) info.hostView; 903 if (lahv != null && lahv.orientationChangedSincedInflation()) { 904 mLauncher.removeAppWidget(info); 905 // Remove the current widget which is inflated with the wrong orientation 906 cl.removeView(lahv); 907 mLauncher.bindAppWidget(info); 908 } 909 } 910 } 911 } 912 } 913 914 @Override 915 protected void determineScrollingStart(MotionEvent ev) { 916 if (!isFinishedSwitchingState()) return; 917 918 float deltaX = ev.getX() - mXDown; 919 float absDeltaX = Math.abs(deltaX); 920 float absDeltaY = Math.abs(ev.getY() - mYDown); 921 922 if (Float.compare(absDeltaX, 0f) == 0) return; 923 924 float slope = absDeltaY / absDeltaX; 925 float theta = (float) Math.atan(slope); 926 927 if (absDeltaX > mTouchSlop || absDeltaY > mTouchSlop) { 928 cancelCurrentPageLongPress(); 929 } 930 931 boolean passRightSwipesToCustomContent = 932 (mTouchDownTime - mCustomContentShowTime) > CUSTOM_CONTENT_GESTURE_DELAY; 933 934 if (deltaX > 0 && getScreenIdForPageIndex(getCurrentPage()) == CUSTOM_CONTENT_SCREEN_ID 935 && passRightSwipesToCustomContent) { 936 // Pass swipes to the right to the custom content page. 937 return; 938 } 939 940 if (theta > MAX_SWIPE_ANGLE) { 941 // Above MAX_SWIPE_ANGLE, we don't want to ever start scrolling the workspace 942 return; 943 } else if (theta > START_DAMPING_TOUCH_SLOP_ANGLE) { 944 // Above START_DAMPING_TOUCH_SLOP_ANGLE and below MAX_SWIPE_ANGLE, we want to 945 // increase the touch slop to make it harder to begin scrolling the workspace. This 946 // results in vertically scrolling widgets to more easily. The higher the angle, the 947 // more we increase touch slop. 948 theta -= START_DAMPING_TOUCH_SLOP_ANGLE; 949 float extraRatio = (float) 950 Math.sqrt((theta / (MAX_SWIPE_ANGLE - START_DAMPING_TOUCH_SLOP_ANGLE))); 951 super.determineScrollingStart(ev, 1 + TOUCH_SLOP_DAMPING_FACTOR * extraRatio); 952 } else { 953 // Below START_DAMPING_TOUCH_SLOP_ANGLE, we don't do anything special 954 super.determineScrollingStart(ev); 955 } 956 } 957 958 protected void onPageBeginMoving() { 959 super.onPageBeginMoving(); 960 961 if (isHardwareAccelerated()) { 962 updateChildrenLayersEnabled(false); 963 } else { 964 if (mNextPage != INVALID_PAGE) { 965 // we're snapping to a particular screen 966 enableChildrenCache(mCurrentPage, mNextPage); 967 } else { 968 // this is when user is actively dragging a particular screen, they might 969 // swipe it either left or right (but we won't advance by more than one screen) 970 enableChildrenCache(mCurrentPage - 1, mCurrentPage + 1); 971 } 972 } 973 974 // Only show page outlines as we pan if we are on large screen 975 if (LauncherAppState.getInstance().isScreenLarge()) { 976 showOutlines(); 977 } 978 979 // If we are not fading in adjacent screens, we still need to restore the alpha in case the 980 // user scrolls while we are transitioning (should not affect dispatchDraw optimizations) 981 if (!mWorkspaceFadeInAdjacentScreens) { 982 for (int i = 0; i < getChildCount(); ++i) { 983 ((CellLayout) getPageAt(i)).setShortcutAndWidgetAlpha(1f); 984 } 985 } 986 } 987 988 protected void onPageEndMoving() { 989 super.onPageEndMoving(); 990 991 if (isHardwareAccelerated()) { 992 updateChildrenLayersEnabled(false); 993 } else { 994 clearChildrenCache(); 995 } 996 997 998 if (mDragController.isDragging()) { 999 if (isSmall()) { 1000 // If we are in springloaded mode, then force an event to check if the current touch 1001 // is under a new page (to scroll to) 1002 mDragController.forceTouchMove(); 1003 } 1004 } else { 1005 // If we are not mid-dragging, hide the page outlines if we are on a large screen 1006 if (LauncherAppState.getInstance().isScreenLarge()) { 1007 hideOutlines(); 1008 } 1009 } 1010 1011 if (mDelayedResizeRunnable != null) { 1012 mDelayedResizeRunnable.run(); 1013 mDelayedResizeRunnable = null; 1014 } 1015 1016 if (mDelayedSnapToPageRunnable != null) { 1017 mDelayedSnapToPageRunnable.run(); 1018 mDelayedSnapToPageRunnable = null; 1019 } 1020 if (mStripScreensOnPageStopMoving) { 1021 stripEmptyScreens(); 1022 mStripScreensOnPageStopMoving = false; 1023 } 1024 1025 if (hasCustomContent() && getNextPage() == 0 && !mCustomContentShowing) { 1026 mCustomContentShowing = true; 1027 if (mCustomContentCallbacks != null) { 1028 mCustomContentCallbacks.onShow(); 1029 mCustomContentShowTime = System.currentTimeMillis(); 1030 } 1031 } else if (hasCustomContent() && getNextPage() != 0 && mCustomContentShowing) { 1032 mCustomContentShowing = false; 1033 if (mCustomContentCallbacks != null) { 1034 mCustomContentCallbacks.onHide(); 1035 mLauncher.resetQSBScroll(); 1036 } 1037 } 1038 } 1039 1040 @Override 1041 protected void notifyPageSwitchListener() { 1042 super.notifyPageSwitchListener(); 1043 Launcher.setScreen(mCurrentPage); 1044 }; 1045 1046 protected void setWallpaperDimension() { 1047 WallpaperPickerActivity.suggestWallpaperDimension(mLauncher.getResources(), 1048 mLauncher.getSharedPrefs(), mLauncher.getWindowManager(), mWallpaperManager); 1049 } 1050 1051 1052 1053 1054 protected void snapToPage(int whichPage, Runnable r) { 1055 if (mDelayedSnapToPageRunnable != null) { 1056 mDelayedSnapToPageRunnable.run(); 1057 } 1058 mDelayedSnapToPageRunnable = r; 1059 snapToPage(whichPage, SLOW_PAGE_SNAP_ANIMATION_DURATION); 1060 } 1061 1062 protected void snapToScreenId(long screenId, Runnable r) { 1063 snapToPage(getPageIndexForScreenId(screenId), r); 1064 } 1065 1066 class WallpaperOffsetInterpolator implements Choreographer.FrameCallback { 1067 float mFinalOffset = 0.0f; 1068 float mCurrentOffset = 0.0f; 1069 //long mLastWallpaperOffsetUpdateTime; 1070 boolean mWaitingForUpdate; 1071 Choreographer mChoreographer; 1072 Interpolator mInterpolator; 1073 boolean mAnimating; 1074 long mAnimationStartTime; 1075 float mAnimationStartOffset; 1076 final int ANIMATION_DURATION = 250; 1077 int mNumScreens; 1078 1079 public WallpaperOffsetInterpolator() { 1080 mChoreographer = Choreographer.getInstance(); 1081 mInterpolator = new DecelerateInterpolator(1.5f); 1082 } 1083 1084 @Override 1085 public void doFrame(long frameTimeNanos) { 1086 updateOffset(false); 1087 } 1088 1089 1090 private void updateOffset(boolean force) { 1091 if (mWaitingForUpdate || force) { 1092 mWaitingForUpdate = false; 1093 if (computeScrollOffset() && mWindowToken != null) { 1094 try { 1095 mWallpaperManager.setWallpaperOffsets(mWindowToken, 1096 mWallpaperOffset.getCurrX(), 0.5f); 1097 setWallpaperOffsetSteps(); 1098 } catch (IllegalArgumentException e) { 1099 Log.e(TAG, "Error updating wallpaper offset: " + e); 1100 } 1101 } 1102 } 1103 } 1104 1105 public boolean computeScrollOffset() { 1106 final float oldOffset = mCurrentOffset; 1107 if (mAnimating) { 1108 long durationSinceAnimation = System.currentTimeMillis() - mAnimationStartTime; 1109 float t0 = durationSinceAnimation / (float) ANIMATION_DURATION; 1110 float t1 = mInterpolator.getInterpolation(t0); 1111 mCurrentOffset = mAnimationStartOffset + 1112 (mFinalOffset - mAnimationStartOffset) * t1; 1113 mAnimating = durationSinceAnimation < ANIMATION_DURATION; 1114 } else { 1115 mCurrentOffset = mFinalOffset; 1116 } 1117 1118 if (Math.abs(mCurrentOffset - mFinalOffset) > 0.0000001f) { 1119 scheduleUpdate(); 1120 } 1121 if (Math.abs(oldOffset - mCurrentOffset) > 0.0000001f) { 1122 return true; 1123 } 1124 return false; 1125 } 1126 1127 private float wallpaperOffsetForCurrentScroll() { 1128 if (getChildCount() <= 1) { 1129 return 0; 1130 } 1131 final int lastIndex = isLayoutRtl() ? 0 : getChildCount() - 1; 1132 final int firstIndex = isLayoutRtl() ? getChildCount() - 2 : 1; 1133 int firstPageScrollX = getScrollForPage(firstIndex); 1134 int scrollRange = getScrollForPage(lastIndex) - firstPageScrollX; 1135 if (scrollRange == 0) { 1136 return 0; 1137 } else { 1138 // do different behavior if it's a live wallpaper? 1139 float offset = (getScrollX() - firstPageScrollX) / (float) scrollRange; 1140 return offset; 1141 } 1142 } 1143 1144 public void syncWithScroll() { 1145 float offset = wallpaperOffsetForCurrentScroll(); 1146 mWallpaperOffset.setFinalX(offset); 1147 updateOffset(true); 1148 } 1149 1150 public float getCurrX() { 1151 return mCurrentOffset; 1152 } 1153 1154 public float getFinalX() { 1155 return mFinalOffset; 1156 } 1157 1158 private void animateToFinal() { 1159 mAnimating = true; 1160 mAnimationStartOffset = mCurrentOffset; 1161 mAnimationStartTime = System.currentTimeMillis(); 1162 } 1163 1164 private void setWallpaperOffsetSteps() { 1165 // Set wallpaper offset steps (1 / (number of screens - 1)) 1166 mWallpaperManager.setWallpaperOffsetSteps(1.0f / (getChildCount() - 1), 1.0f); 1167 } 1168 1169 public void setFinalX(float x) { 1170 scheduleUpdate(); 1171 mFinalOffset = Math.max(0f, Math.min(x, 1.0f)); 1172 if (getChildCount() != mNumScreens) { 1173 if (mNumScreens > 0) { 1174 // Don't animate if we're going from 0 screens 1175 animateToFinal(); 1176 } 1177 mNumScreens = getChildCount(); 1178 } 1179 } 1180 1181 private void scheduleUpdate() { 1182 if (!mWaitingForUpdate) { 1183 mChoreographer.postFrameCallback(this); 1184 mWaitingForUpdate = true; 1185 } 1186 } 1187 1188 public void jumpToFinal() { 1189 mCurrentOffset = mFinalOffset; 1190 } 1191 } 1192 1193 @Override 1194 public void computeScroll() { 1195 super.computeScroll(); 1196 mWallpaperOffset.syncWithScroll(); 1197 } 1198 1199 void showOutlines() { 1200 if (!isSmall() && !mIsSwitchingState) { 1201 if (mChildrenOutlineFadeOutAnimation != null) mChildrenOutlineFadeOutAnimation.cancel(); 1202 if (mChildrenOutlineFadeInAnimation != null) mChildrenOutlineFadeInAnimation.cancel(); 1203 mChildrenOutlineFadeInAnimation = LauncherAnimUtils.ofFloat(this, "childrenOutlineAlpha", 1.0f); 1204 mChildrenOutlineFadeInAnimation.setDuration(CHILDREN_OUTLINE_FADE_IN_DURATION); 1205 mChildrenOutlineFadeInAnimation.start(); 1206 } 1207 } 1208 1209 void hideOutlines() { 1210 if (!isSmall() && !mIsSwitchingState) { 1211 if (mChildrenOutlineFadeInAnimation != null) mChildrenOutlineFadeInAnimation.cancel(); 1212 if (mChildrenOutlineFadeOutAnimation != null) mChildrenOutlineFadeOutAnimation.cancel(); 1213 mChildrenOutlineFadeOutAnimation = LauncherAnimUtils.ofFloat(this, "childrenOutlineAlpha", 0.0f); 1214 mChildrenOutlineFadeOutAnimation.setDuration(CHILDREN_OUTLINE_FADE_OUT_DURATION); 1215 mChildrenOutlineFadeOutAnimation.setStartDelay(CHILDREN_OUTLINE_FADE_OUT_DELAY); 1216 mChildrenOutlineFadeOutAnimation.start(); 1217 } 1218 } 1219 1220 public void showOutlinesTemporarily() { 1221 if (!mIsPageMoving && !isTouchActive()) { 1222 snapToPage(mCurrentPage); 1223 } 1224 } 1225 1226 public void setChildrenOutlineAlpha(float alpha) { 1227 mChildrenOutlineAlpha = alpha; 1228 for (int i = 0; i < getChildCount(); i++) { 1229 CellLayout cl = (CellLayout) getChildAt(i); 1230 cl.setBackgroundAlpha(alpha); 1231 } 1232 } 1233 1234 public float getChildrenOutlineAlpha() { 1235 return mChildrenOutlineAlpha; 1236 } 1237 1238 void disableBackground() { 1239 mDrawBackground = false; 1240 } 1241 void enableBackground() { 1242 mDrawBackground = true; 1243 } 1244 1245 private void animateBackgroundGradient(float finalAlpha, boolean animated) { 1246 if (mBackground == null) return; 1247 if (mBackgroundFadeInAnimation != null) { 1248 mBackgroundFadeInAnimation.cancel(); 1249 mBackgroundFadeInAnimation = null; 1250 } 1251 if (mBackgroundFadeOutAnimation != null) { 1252 mBackgroundFadeOutAnimation.cancel(); 1253 mBackgroundFadeOutAnimation = null; 1254 } 1255 float startAlpha = getBackgroundAlpha(); 1256 if (finalAlpha != startAlpha) { 1257 if (animated) { 1258 mBackgroundFadeOutAnimation = 1259 LauncherAnimUtils.ofFloat(this, startAlpha, finalAlpha); 1260 mBackgroundFadeOutAnimation.addUpdateListener(new AnimatorUpdateListener() { 1261 public void onAnimationUpdate(ValueAnimator animation) { 1262 setBackgroundAlpha(((Float) animation.getAnimatedValue()).floatValue()); 1263 } 1264 }); 1265 mBackgroundFadeOutAnimation.setInterpolator(new DecelerateInterpolator(1.5f)); 1266 mBackgroundFadeOutAnimation.setDuration(BACKGROUND_FADE_OUT_DURATION); 1267 mBackgroundFadeOutAnimation.start(); 1268 } else { 1269 setBackgroundAlpha(finalAlpha); 1270 } 1271 } 1272 } 1273 1274 public void setBackgroundAlpha(float alpha) { 1275 if (alpha != mBackgroundAlpha) { 1276 mBackgroundAlpha = alpha; 1277 invalidate(); 1278 } 1279 } 1280 1281 public float getBackgroundAlpha() { 1282 return mBackgroundAlpha; 1283 } 1284 1285 float backgroundAlphaInterpolator(float r) { 1286 float pivotA = 0.1f; 1287 float pivotB = 0.4f; 1288 if (r < pivotA) { 1289 return 0; 1290 } else if (r > pivotB) { 1291 return 1.0f; 1292 } else { 1293 return (r - pivotA)/(pivotB - pivotA); 1294 } 1295 } 1296 1297 private void updatePageAlphaValues(int screenCenter) { 1298 boolean isInOverscroll = mOverScrollX < 0 || mOverScrollX > mMaxScrollX; 1299 if (mWorkspaceFadeInAdjacentScreens && 1300 mState == State.NORMAL && 1301 !mIsSwitchingState && 1302 !isInOverscroll) { 1303 for (int i = 0; i < getChildCount(); i++) { 1304 CellLayout child = (CellLayout) getChildAt(i); 1305 if (child != null) { 1306 float scrollProgress = getScrollProgress(screenCenter, child, i); 1307 float alpha = 1 - Math.abs(scrollProgress); 1308 child.getShortcutsAndWidgets().setAlpha(alpha); 1309 if (!mIsDragOccuring) { 1310 child.setBackgroundAlphaMultiplier( 1311 backgroundAlphaInterpolator(Math.abs(scrollProgress))); 1312 } else { 1313 child.setBackgroundAlphaMultiplier(1f); 1314 } 1315 } 1316 } 1317 } 1318 } 1319 1320 private void setChildrenBackgroundAlphaMultipliers(float a) { 1321 for (int i = 0; i < getChildCount(); i++) { 1322 CellLayout child = (CellLayout) getChildAt(i); 1323 child.setBackgroundAlphaMultiplier(a); 1324 } 1325 } 1326 1327 public boolean hasCustomContent() { 1328 return (mScreenOrder.size() > 0 && mScreenOrder.get(0) == CUSTOM_CONTENT_SCREEN_ID); 1329 } 1330 1331 public boolean isOnOrMovingToCustomContent() { 1332 return hasCustomContent() && getNextPage() == 0; 1333 } 1334 1335 private void updateStateForCustomContent(int screenCenter) { 1336 if (hasCustomContent() && !isSmall() && !isSwitchingState()) { 1337 int index = mScreenOrder.indexOf(CUSTOM_CONTENT_SCREEN_ID); 1338 int scrollDelta = getScrollForPage(index + 1) - getScrollX(); 1339 float translationX = Math.max(scrollDelta, 0); 1340 float progress = (1.0f * scrollDelta) / 1341 (getScrollForPage(index + 1) - getScrollForPage(index)); 1342 progress = Math.max(0, progress); 1343 1344 if (Float.compare(progress, mLastCustomContentScrollProgress) == 0) return; 1345 mLastCustomContentScrollProgress = progress; 1346 1347 setBackgroundAlpha(progress * 0.8f); 1348 1349 if (mLauncher.getHotseat() != null) { 1350 mLauncher.getHotseat().setTranslationX(translationX); 1351 } 1352 1353 if (getPageIndicator() != null) { 1354 getPageIndicator().setTranslationX(translationX); 1355 } 1356 1357 if (mCustomContentCallbacks != null) { 1358 mCustomContentCallbacks.onScrollProgressChanged(progress); 1359 } 1360 } 1361 } 1362 1363 @Override 1364 protected void screenScrolled(int screenCenter) { 1365 final boolean isRtl = isLayoutRtl(); 1366 super.screenScrolled(screenCenter); 1367 1368 updatePageAlphaValues(screenCenter); 1369 updateStateForCustomContent(screenCenter); 1370 enableHwLayersOnVisiblePages(); 1371 1372 if ((mOverScrollX < 0 && !hasCustomContent()) || mOverScrollX > mMaxScrollX) { 1373 int index = 0; 1374 float pivotX = 0f; 1375 final float leftBiasedPivot = 0.25f; 1376 final float rightBiasedPivot = 0.75f; 1377 final int lowerIndex = 0; 1378 final int upperIndex = getChildCount() - 1; 1379 if (isRtl) { 1380 index = mOverScrollX < 0 ? upperIndex : lowerIndex; 1381 pivotX = (index == 0 ? leftBiasedPivot : rightBiasedPivot); 1382 } else { 1383 index = mOverScrollX < 0 ? lowerIndex : upperIndex; 1384 pivotX = (index == 0 ? rightBiasedPivot : leftBiasedPivot); 1385 } 1386 1387 CellLayout cl = (CellLayout) getChildAt(index); 1388 float scrollProgress = getScrollProgress(screenCenter, cl, index); 1389 final boolean isLeftPage = (isRtl ? index > 0 : index == 0); 1390 cl.setOverScrollAmount(Math.abs(scrollProgress), isLeftPage); 1391 float rotation = -WORKSPACE_OVERSCROLL_ROTATION * scrollProgress; 1392 cl.setRotationY(rotation); 1393 if (!mOverscrollTransformsSet) { 1394 mOverscrollTransformsSet = true; 1395 cl.setCameraDistance(mDensity * mCameraDistance); 1396 cl.setPivotX(cl.getMeasuredWidth() * pivotX); 1397 cl.setPivotY(cl.getMeasuredHeight() * 0.5f); 1398 cl.setOverscrollTransformsDirty(true); 1399 } 1400 } else { 1401 if (mOverscrollTransformsSet) { 1402 mOverscrollTransformsSet = false; 1403 ((CellLayout) getChildAt(0)).resetOverscrollTransforms(); 1404 ((CellLayout) getChildAt(getChildCount() - 1)).resetOverscrollTransforms(); 1405 } 1406 } 1407 } 1408 1409 @Override 1410 protected void overScroll(float amount) { 1411 acceleratedOverScroll(amount); 1412 } 1413 1414 protected void onAttachedToWindow() { 1415 super.onAttachedToWindow(); 1416 mWindowToken = getWindowToken(); 1417 computeScroll(); 1418 mDragController.setWindowToken(mWindowToken); 1419 } 1420 1421 protected void onDetachedFromWindow() { 1422 super.onDetachedFromWindow(); 1423 mWindowToken = null; 1424 } 1425 1426 @Override 1427 protected void onLayout(boolean changed, int left, int top, int right, int bottom) { 1428 if (mFirstLayout && mCurrentPage >= 0 && mCurrentPage < getChildCount()) { 1429 mWallpaperOffset.syncWithScroll(); 1430 mWallpaperOffset.jumpToFinal(); 1431 } 1432 super.onLayout(changed, left, top, right, bottom); 1433 } 1434 1435 @Override 1436 protected void onDraw(Canvas canvas) { 1437 // Draw the background gradient if necessary 1438 if (mBackground != null && mBackgroundAlpha > 0.0f && mDrawBackground) { 1439 int alpha = (int) (mBackgroundAlpha * 255); 1440 mBackground.setAlpha(alpha); 1441 mBackground.setBounds(getScrollX(), 0, getScrollX() + getMeasuredWidth(), 1442 getMeasuredHeight()); 1443 mBackground.draw(canvas); 1444 } 1445 1446 super.onDraw(canvas); 1447 1448 // Call back to LauncherModel to finish binding after the first draw 1449 post(mBindPages); 1450 } 1451 1452 boolean isDrawingBackgroundGradient() { 1453 return (mBackground != null && mBackgroundAlpha > 0.0f && mDrawBackground); 1454 } 1455 1456 @Override 1457 protected boolean onRequestFocusInDescendants(int direction, Rect previouslyFocusedRect) { 1458 if (!mLauncher.isAllAppsVisible()) { 1459 final Folder openFolder = getOpenFolder(); 1460 if (openFolder != null) { 1461 return openFolder.requestFocus(direction, previouslyFocusedRect); 1462 } else { 1463 return super.onRequestFocusInDescendants(direction, previouslyFocusedRect); 1464 } 1465 } 1466 return false; 1467 } 1468 1469 @Override 1470 public int getDescendantFocusability() { 1471 if (isSmall()) { 1472 return ViewGroup.FOCUS_BLOCK_DESCENDANTS; 1473 } 1474 return super.getDescendantFocusability(); 1475 } 1476 1477 @Override 1478 public void addFocusables(ArrayList<View> views, int direction, int focusableMode) { 1479 if (!mLauncher.isAllAppsVisible()) { 1480 final Folder openFolder = getOpenFolder(); 1481 if (openFolder != null) { 1482 openFolder.addFocusables(views, direction); 1483 } else { 1484 super.addFocusables(views, direction, focusableMode); 1485 } 1486 } 1487 } 1488 1489 public boolean isSmall() { 1490 return mState == State.SMALL || mState == State.SPRING_LOADED || mState == State.OVERVIEW; 1491 } 1492 1493 void enableChildrenCache(int fromPage, int toPage) { 1494 if (fromPage > toPage) { 1495 final int temp = fromPage; 1496 fromPage = toPage; 1497 toPage = temp; 1498 } 1499 1500 final int screenCount = getChildCount(); 1501 1502 fromPage = Math.max(fromPage, 0); 1503 toPage = Math.min(toPage, screenCount - 1); 1504 1505 for (int i = fromPage; i <= toPage; i++) { 1506 final CellLayout layout = (CellLayout) getChildAt(i); 1507 layout.setChildrenDrawnWithCacheEnabled(true); 1508 layout.setChildrenDrawingCacheEnabled(true); 1509 } 1510 } 1511 1512 void clearChildrenCache() { 1513 final int screenCount = getChildCount(); 1514 for (int i = 0; i < screenCount; i++) { 1515 final CellLayout layout = (CellLayout) getChildAt(i); 1516 layout.setChildrenDrawnWithCacheEnabled(false); 1517 // In software mode, we don't want the items to continue to be drawn into bitmaps 1518 if (!isHardwareAccelerated()) { 1519 layout.setChildrenDrawingCacheEnabled(false); 1520 } 1521 } 1522 } 1523 1524 private void updateChildrenLayersEnabled(boolean force) { 1525 boolean small = mState == State.SMALL || mState == State.OVERVIEW || mIsSwitchingState; 1526 boolean enableChildrenLayers = force || small || mAnimatingViewIntoPlace || isPageMoving(); 1527 1528 if (enableChildrenLayers != mChildrenLayersEnabled) { 1529 mChildrenLayersEnabled = enableChildrenLayers; 1530 if (mChildrenLayersEnabled) { 1531 enableHwLayersOnVisiblePages(); 1532 } else { 1533 for (int i = 0; i < getPageCount(); i++) { 1534 final CellLayout cl = (CellLayout) getChildAt(i); 1535 cl.disableHardwareLayers(); 1536 } 1537 } 1538 } 1539 } 1540 1541 private void enableHwLayersOnVisiblePages() { 1542 if (mChildrenLayersEnabled) { 1543 final int screenCount = getChildCount(); 1544 getVisiblePages(mTempVisiblePagesRange); 1545 int leftScreen = mTempVisiblePagesRange[0]; 1546 int rightScreen = mTempVisiblePagesRange[1]; 1547 if (leftScreen == rightScreen) { 1548 // make sure we're caching at least two pages always 1549 if (rightScreen < screenCount - 1) { 1550 rightScreen++; 1551 } else if (leftScreen > 0) { 1552 leftScreen--; 1553 } 1554 } 1555 for (int i = 0; i < screenCount; i++) { 1556 final CellLayout layout = (CellLayout) getPageAt(i); 1557 if (!(leftScreen <= i && i <= rightScreen && shouldDrawChild(layout))) { 1558 layout.disableHardwareLayers(); 1559 } 1560 } 1561 for (int i = 0; i < screenCount; i++) { 1562 final CellLayout layout = (CellLayout) getPageAt(i); 1563 if (leftScreen <= i && i <= rightScreen && shouldDrawChild(layout)) { 1564 layout.enableHardwareLayers(); 1565 } 1566 } 1567 } 1568 } 1569 1570 public void buildPageHardwareLayers() { 1571 // force layers to be enabled just for the call to buildLayer 1572 updateChildrenLayersEnabled(true); 1573 if (getWindowToken() != null) { 1574 final int childCount = getChildCount(); 1575 for (int i = 0; i < childCount; i++) { 1576 CellLayout cl = (CellLayout) getChildAt(i); 1577 cl.buildHardwareLayer(); 1578 } 1579 } 1580 updateChildrenLayersEnabled(false); 1581 } 1582 1583 protected void onWallpaperTap(MotionEvent ev) { 1584 final int[] position = mTempCell; 1585 getLocationOnScreen(position); 1586 1587 int pointerIndex = ev.getActionIndex(); 1588 position[0] += (int) ev.getX(pointerIndex); 1589 position[1] += (int) ev.getY(pointerIndex); 1590 1591 mWallpaperManager.sendWallpaperCommand(getWindowToken(), 1592 ev.getAction() == MotionEvent.ACTION_UP 1593 ? WallpaperManager.COMMAND_TAP : WallpaperManager.COMMAND_SECONDARY_TAP, 1594 position[0], position[1], 0, null); 1595 } 1596 1597 /* 1598 * This interpolator emulates the rate at which the perceived scale of an object changes 1599 * as its distance from a camera increases. When this interpolator is applied to a scale 1600 * animation on a view, it evokes the sense that the object is shrinking due to moving away 1601 * from the camera. 1602 */ 1603 static class ZInterpolator implements TimeInterpolator { 1604 private float focalLength; 1605 1606 public ZInterpolator(float foc) { 1607 focalLength = foc; 1608 } 1609 1610 public float getInterpolation(float input) { 1611 return (1.0f - focalLength / (focalLength + input)) / 1612 (1.0f - focalLength / (focalLength + 1.0f)); 1613 } 1614 } 1615 1616 /* 1617 * The exact reverse of ZInterpolator. 1618 */ 1619 static class InverseZInterpolator implements TimeInterpolator { 1620 private ZInterpolator zInterpolator; 1621 public InverseZInterpolator(float foc) { 1622 zInterpolator = new ZInterpolator(foc); 1623 } 1624 public float getInterpolation(float input) { 1625 return 1 - zInterpolator.getInterpolation(1 - input); 1626 } 1627 } 1628 1629 /* 1630 * ZInterpolator compounded with an ease-out. 1631 */ 1632 static class ZoomOutInterpolator implements TimeInterpolator { 1633 private final DecelerateInterpolator decelerate = new DecelerateInterpolator(0.75f); 1634 private final ZInterpolator zInterpolator = new ZInterpolator(0.13f); 1635 1636 public float getInterpolation(float input) { 1637 return decelerate.getInterpolation(zInterpolator.getInterpolation(input)); 1638 } 1639 } 1640 1641 /* 1642 * InvereZInterpolator compounded with an ease-out. 1643 */ 1644 static class ZoomInInterpolator implements TimeInterpolator { 1645 private final InverseZInterpolator inverseZInterpolator = new InverseZInterpolator(0.35f); 1646 private final DecelerateInterpolator decelerate = new DecelerateInterpolator(3.0f); 1647 1648 public float getInterpolation(float input) { 1649 return decelerate.getInterpolation(inverseZInterpolator.getInterpolation(input)); 1650 } 1651 } 1652 1653 private final ZoomInInterpolator mZoomInInterpolator = new ZoomInInterpolator(); 1654 1655 /* 1656 * 1657 * We call these methods (onDragStartedWithItemSpans/onDragStartedWithSize) whenever we 1658 * start a drag in Launcher, regardless of whether the drag has ever entered the Workspace 1659 * 1660 * These methods mark the appropriate pages as accepting drops (which alters their visual 1661 * appearance). 1662 * 1663 */ 1664 public void onDragStartedWithItem(View v) { 1665 final Canvas canvas = new Canvas(); 1666 1667 // The outline is used to visualize where the item will land if dropped 1668 mDragOutline = createDragOutline(v, canvas, DRAG_BITMAP_PADDING); 1669 } 1670 1671 public void onDragStartedWithItem(PendingAddItemInfo info, Bitmap b, boolean clipAlpha) { 1672 final Canvas canvas = new Canvas(); 1673 1674 int[] size = estimateItemSize(info.spanX, info.spanY, info, false); 1675 1676 // The outline is used to visualize where the item will land if dropped 1677 mDragOutline = createDragOutline(b, canvas, DRAG_BITMAP_PADDING, size[0], 1678 size[1], clipAlpha); 1679 } 1680 1681 public void exitWidgetResizeMode() { 1682 DragLayer dragLayer = mLauncher.getDragLayer(); 1683 dragLayer.clearAllResizeFrames(); 1684 } 1685 1686 private void initAnimationArrays() { 1687 final int childCount = getChildCount(); 1688 if (mLastChildCount == childCount) return; 1689 1690 mOldBackgroundAlphas = new float[childCount]; 1691 mOldAlphas = new float[childCount]; 1692 mNewBackgroundAlphas = new float[childCount]; 1693 mNewAlphas = new float[childCount]; 1694 } 1695 1696 Animator getChangeStateAnimation(final State state, boolean animated) { 1697 return getChangeStateAnimation(state, animated, 0, -1); 1698 } 1699 1700 @Override 1701 protected void getOverviewModePages(int[] range) { 1702 int count = mScreenOrder.size(); 1703 1704 int start = -1; 1705 int end = -1; 1706 // 1707 for (int i = 0; i < count; i++) { 1708 if (start < 0 && mScreenOrder.get(i) >= 0) { 1709 start = i; 1710 } 1711 if (start >=0 && mScreenOrder.get(i) >= 0) { 1712 end = i; 1713 } 1714 } 1715 range[0] = start; 1716 range[1] = end; 1717 } 1718 1719 protected void onStartReordering() { 1720 super.onStartReordering(); 1721 int count = getChildCount(); 1722 for (int i = 0; i < count; i++) { 1723 ((CellLayout) getChildAt(i)).setUseActiveGlowBackground(true); 1724 } 1725 showOutlines(); 1726 1727 // Reordering handles its own animations, disable the automatic ones. 1728 setLayoutTransition(null); 1729 } 1730 1731 protected void onEndReordering() { 1732 super.onEndReordering(); 1733 int count = getChildCount(); 1734 for (int i = 0; i < count; i++) { 1735 ((CellLayout) getChildAt(i)).setUseActiveGlowBackground(false); 1736 } 1737 hideOutlines(); 1738 1739 mScreenOrder.clear(); 1740 for (int i = 0; i < count; i++) { 1741 CellLayout cl = ((CellLayout) getChildAt(i)); 1742 mScreenOrder.add(getIdForScreen(cl)); 1743 } 1744 1745 Launcher.addDumpLog(TAG, "10249126 - onEndReordering()", true); 1746 mLauncher.getModel().updateWorkspaceScreenOrder(mLauncher, mScreenOrder); 1747 1748 // Re-enable auto layout transitions for page deletion. 1749 setLayoutTransition(mLayoutTransition); 1750 } 1751 1752 public boolean isInOverviewMode() { 1753 return mState == State.OVERVIEW; 1754 } 1755 1756 public void enterOverviewMode() { 1757 enableOverviewMode(true, -1); 1758 } 1759 1760 public void exitOverviewMode() { 1761 exitOverviewMode(-1); 1762 } 1763 1764 public void exitOverviewMode(int snapPage) { 1765 enableOverviewMode(false, snapPage); 1766 } 1767 1768 private void enableOverviewMode(boolean enable, int snapPage) { 1769 State finalState = Workspace.State.OVERVIEW; 1770 if (!enable) { 1771 finalState = Workspace.State.NORMAL; 1772 } 1773 1774 Animator workspaceAnim = getChangeStateAnimation(finalState, true, 0, snapPage); 1775 workspaceAnim.addListener(new AnimatorListenerAdapter() { 1776 @Override 1777 public void onAnimationEnd(Animator arg0) { 1778 mIsSwitchingState = false; 1779 } 1780 @Override 1781 public void onAnimationStart(Animator arg0) { 1782 mIsSwitchingState = true; 1783 } 1784 }); 1785 workspaceAnim.start(); 1786 } 1787 1788 Animator getChangeStateAnimation(final State state, boolean animated, int delay, int snapPage) { 1789 if (mState == state) { 1790 return null; 1791 } 1792 1793 // Initialize animation arrays for the first time if necessary 1794 initAnimationArrays(); 1795 1796 AnimatorSet anim = animated ? LauncherAnimUtils.createAnimatorSet() : null; 1797 1798 final State oldState = mState; 1799 final boolean oldStateIsNormal = (oldState == State.NORMAL); 1800 final boolean oldStateIsSpringLoaded = (oldState == State.SPRING_LOADED); 1801 final boolean oldStateIsSmall = (oldState == State.SMALL); 1802 final boolean oldStateIsOverview = (oldState == State.OVERVIEW); 1803 mState = state; 1804 final boolean stateIsNormal = (state == State.NORMAL); 1805 final boolean stateIsSpringLoaded = (state == State.SPRING_LOADED); 1806 final boolean stateIsSmall = (state == State.SMALL); 1807 final boolean stateIsOverview = (state == State.OVERVIEW); 1808 float finalBackgroundAlpha = stateIsSpringLoaded ? 1.0f : 0f; 1809 float finalHotseatAndPageIndicatorAlpha = (stateIsOverview || stateIsSmall) ? 0f : 1f; 1810 float finalOverviewPanelAlpha = stateIsOverview ? 1f : 0f; 1811 1812 boolean zoomIn = true; 1813 mNewScale = 1.0f; 1814 1815 if (oldStateIsOverview) { 1816 disableFreeScroll(snapPage); 1817 } else if (stateIsOverview) { 1818 enableFreeScroll(); 1819 } 1820 1821 if (state != State.NORMAL) { 1822 if (stateIsSpringLoaded) { 1823 mNewScale = mSpringLoadedShrinkFactor; 1824 } else if (stateIsOverview) { 1825 mNewScale = mOverviewModeShrinkFactor; 1826 } else if (stateIsSmall){ 1827 mNewScale = mOverviewModeShrinkFactor - 0.1f; 1828 } 1829 if (oldStateIsNormal && stateIsSmall) { 1830 zoomIn = false; 1831 updateChildrenLayersEnabled(false); 1832 } else { 1833 finalBackgroundAlpha = 1.0f; 1834 } 1835 } 1836 final int duration = zoomIn ? 1837 getResources().getInteger(R.integer.config_workspaceUnshrinkTime) : 1838 getResources().getInteger(R.integer.config_appsCustomizeWorkspaceShrinkTime); 1839 for (int i = 0; i < getChildCount(); i++) { 1840 final CellLayout cl = (CellLayout) getChildAt(i); 1841 float finalAlpha = (!mWorkspaceFadeInAdjacentScreens || stateIsSpringLoaded || 1842 (i == mCurrentPage)) ? 1f : 0f; 1843 float currentAlpha = cl.getShortcutsAndWidgets().getAlpha(); 1844 float initialAlpha = currentAlpha; 1845 1846 // Determine the pages alpha during the state transition 1847 if ((oldStateIsSmall && stateIsNormal) || 1848 (oldStateIsNormal && stateIsSmall)) { 1849 // To/from workspace - only show the current page unless the transition is not 1850 // animated and the animation end callback below doesn't run; 1851 // or, if we're in spring-loaded mode 1852 if (i == mCurrentPage || !animated || oldStateIsSpringLoaded) { 1853 finalAlpha = 1f; 1854 } else { 1855 initialAlpha = 0f; 1856 finalAlpha = 0f; 1857 } 1858 } 1859 1860 mOldAlphas[i] = initialAlpha; 1861 mNewAlphas[i] = finalAlpha; 1862 if (animated) { 1863 mOldBackgroundAlphas[i] = cl.getBackgroundAlpha(); 1864 mNewBackgroundAlphas[i] = finalBackgroundAlpha; 1865 } else { 1866 setScaleX(mNewScale); 1867 setScaleY(mNewScale); 1868 cl.setBackgroundAlpha(finalBackgroundAlpha); 1869 cl.setShortcutAndWidgetAlpha(finalAlpha); 1870 } 1871 } 1872 1873 if (animated) { 1874 LauncherViewPropertyAnimator scale = new LauncherViewPropertyAnimator(this); 1875 scale.scaleX(mNewScale) 1876 .scaleY(mNewScale) 1877 .setInterpolator(mZoomInInterpolator); 1878 anim.play(scale); 1879 for (int index = 0; index < getChildCount(); index++) { 1880 final int i = index; 1881 final CellLayout cl = (CellLayout) getChildAt(i); 1882 float currentAlpha = cl.getShortcutsAndWidgets().getAlpha(); 1883 if (mOldAlphas[i] == 0 && mNewAlphas[i] == 0) { 1884 cl.setBackgroundAlpha(mNewBackgroundAlphas[i]); 1885 cl.setShortcutAndWidgetAlpha(mNewAlphas[i]); 1886 } else { 1887 1888 if (mOldAlphas[i] != mNewAlphas[i] || currentAlpha != mNewAlphas[i]) { 1889 LauncherViewPropertyAnimator alphaAnim = 1890 new LauncherViewPropertyAnimator(cl.getShortcutsAndWidgets()); 1891 alphaAnim.alpha(mNewAlphas[i]) 1892 .setDuration(duration) 1893 .setInterpolator(mZoomInInterpolator); 1894 anim.play(alphaAnim); 1895 } 1896 if (mOldBackgroundAlphas[i] != 0 || 1897 mNewBackgroundAlphas[i] != 0) { 1898 ValueAnimator bgAnim = 1899 LauncherAnimUtils.ofFloat(cl, 0f, 1f).setDuration(duration); 1900 bgAnim.setInterpolator(mZoomInInterpolator); 1901 bgAnim.addUpdateListener(new LauncherAnimatorUpdateListener() { 1902 public void onAnimationUpdate(float a, float b) { 1903 cl.setBackgroundAlpha( 1904 a * mOldBackgroundAlphas[i] + 1905 b * mNewBackgroundAlphas[i]); 1906 } 1907 }); 1908 anim.play(bgAnim); 1909 } 1910 } 1911 } 1912 ObjectAnimator pageIndicatorAlpha = null; 1913 if (getPageIndicator() != null) { 1914 pageIndicatorAlpha = ObjectAnimator.ofFloat(getPageIndicator(), "alpha", 1915 finalHotseatAndPageIndicatorAlpha); 1916 } 1917 ObjectAnimator hotseatAlpha = ObjectAnimator.ofFloat(mLauncher.getHotseat(), "alpha", 1918 finalHotseatAndPageIndicatorAlpha); 1919 ObjectAnimator overviewPanelAlpha = ObjectAnimator.ofFloat(mLauncher.getOverviewPanel(), 1920 "alpha", finalOverviewPanelAlpha); 1921 overviewPanelAlpha.addUpdateListener(new AlphaUpdateListener( 1922 mLauncher.getOverviewPanel())); 1923 hotseatAlpha.addUpdateListener(new AlphaUpdateListener(mLauncher.getHotseat())); 1924 if (getPageIndicator() != null) { 1925 pageIndicatorAlpha.addUpdateListener(new AlphaUpdateListener(getPageIndicator())); 1926 } 1927 anim.play(overviewPanelAlpha); 1928 anim.play(hotseatAlpha); 1929 anim.play(pageIndicatorAlpha); 1930 anim.setStartDelay(delay); 1931 } else { 1932 mLauncher.getOverviewPanel().setAlpha(finalOverviewPanelAlpha); 1933 mLauncher.getHotseat().setAlpha(finalHotseatAndPageIndicatorAlpha); 1934 if (getPageIndicator() != null) { 1935 getPageIndicator().setAlpha(finalHotseatAndPageIndicatorAlpha); 1936 } 1937 } 1938 1939 if (stateIsSpringLoaded) { 1940 // Right now we're covered by Apps Customize 1941 // Show the background gradient immediately, so the gradient will 1942 // be showing once AppsCustomize disappears 1943 animateBackgroundGradient(getResources().getInteger( 1944 R.integer.config_appsCustomizeSpringLoadedBgAlpha) / 100f, false); 1945 } else { 1946 // Fade the background gradient away 1947 animateBackgroundGradient(0f, true); 1948 } 1949 return anim; 1950 } 1951 1952 class AlphaUpdateListener implements AnimatorUpdateListener { 1953 View view; 1954 public AlphaUpdateListener(View v) { 1955 view = v; 1956 } 1957 1958 @Override 1959 public void onAnimationUpdate(ValueAnimator arg0) { 1960 if (view.getAlpha() < ALPHA_CUTOFF_THRESHOLD && view.getVisibility() != INVISIBLE) { 1961 view.setVisibility(INVISIBLE); 1962 } else if (view.getAlpha() > ALPHA_CUTOFF_THRESHOLD 1963 && view.getVisibility() != VISIBLE) { 1964 view.setVisibility(VISIBLE); 1965 } 1966 } 1967 1968 } 1969 1970 @Override 1971 public void onLauncherTransitionPrepare(Launcher l, boolean animated, boolean toWorkspace) { 1972 mIsSwitchingState = true; 1973 updateChildrenLayersEnabled(false); 1974 } 1975 1976 @Override 1977 public void onLauncherTransitionStart(Launcher l, boolean animated, boolean toWorkspace) { 1978 } 1979 1980 @Override 1981 public void onLauncherTransitionStep(Launcher l, float t) { 1982 mTransitionProgress = t; 1983 } 1984 1985 @Override 1986 public void onLauncherTransitionEnd(Launcher l, boolean animated, boolean toWorkspace) { 1987 mIsSwitchingState = false; 1988 updateChildrenLayersEnabled(false); 1989 // The code in getChangeStateAnimation to determine initialAlpha and finalAlpha will ensure 1990 // ensure that only the current page is visible during (and subsequently, after) the 1991 // transition animation. If fade adjacent pages is disabled, then re-enable the page 1992 // visibility after the transition animation. 1993 if (!mWorkspaceFadeInAdjacentScreens) { 1994 for (int i = 0; i < getChildCount(); i++) { 1995 final CellLayout cl = (CellLayout) getChildAt(i); 1996 cl.setShortcutAndWidgetAlpha(1f); 1997 } 1998 } 1999 } 2000 2001 @Override 2002 public View getContent() { 2003 return this; 2004 } 2005 2006 /** 2007 * Draw the View v into the given Canvas. 2008 * 2009 * @param v the view to draw 2010 * @param destCanvas the canvas to draw on 2011 * @param padding the horizontal and vertical padding to use when drawing 2012 */ 2013 private void drawDragView(View v, Canvas destCanvas, int padding, boolean pruneToDrawable) { 2014 final Rect clipRect = mTempRect; 2015 v.getDrawingRect(clipRect); 2016 2017 boolean textVisible = false; 2018 2019 destCanvas.save(); 2020 if (v instanceof TextView && pruneToDrawable) { 2021 Drawable d = ((TextView) v).getCompoundDrawables()[1]; 2022 clipRect.set(0, 0, d.getIntrinsicWidth() + padding, d.getIntrinsicHeight() + padding); 2023 destCanvas.translate(padding / 2, padding / 2); 2024 d.draw(destCanvas); 2025 } else { 2026 if (v instanceof FolderIcon) { 2027 // For FolderIcons the text can bleed into the icon area, and so we need to 2028 // hide the text completely (which can't be achieved by clipping). 2029 if (((FolderIcon) v).getTextVisible()) { 2030 ((FolderIcon) v).setTextVisible(false); 2031 textVisible = true; 2032 } 2033 } else if (v instanceof BubbleTextView) { 2034 final BubbleTextView tv = (BubbleTextView) v; 2035 clipRect.bottom = tv.getExtendedPaddingTop() - (int) BubbleTextView.PADDING_V + 2036 tv.getLayout().getLineTop(0); 2037 } else if (v instanceof TextView) { 2038 final TextView tv = (TextView) v; 2039 clipRect.bottom = tv.getExtendedPaddingTop() - tv.getCompoundDrawablePadding() + 2040 tv.getLayout().getLineTop(0); 2041 } 2042 destCanvas.translate(-v.getScrollX() + padding / 2, -v.getScrollY() + padding / 2); 2043 destCanvas.clipRect(clipRect, Op.REPLACE); 2044 v.draw(destCanvas); 2045 2046 // Restore text visibility of FolderIcon if necessary 2047 if (textVisible) { 2048 ((FolderIcon) v).setTextVisible(true); 2049 } 2050 } 2051 destCanvas.restore(); 2052 } 2053 2054 /** 2055 * Returns a new bitmap to show when the given View is being dragged around. 2056 * Responsibility for the bitmap is transferred to the caller. 2057 */ 2058 public Bitmap createDragBitmap(View v, Canvas canvas, int padding) { 2059 Bitmap b; 2060 2061 if (v instanceof TextView) { 2062 Drawable d = ((TextView) v).getCompoundDrawables()[1]; 2063 b = Bitmap.createBitmap(d.getIntrinsicWidth() + padding, 2064 d.getIntrinsicHeight() + padding, Bitmap.Config.ARGB_8888); 2065 } else { 2066 b = Bitmap.createBitmap( 2067 v.getWidth() + padding, v.getHeight() + padding, Bitmap.Config.ARGB_8888); 2068 } 2069 2070 canvas.setBitmap(b); 2071 drawDragView(v, canvas, padding, true); 2072 canvas.setBitmap(null); 2073 2074 return b; 2075 } 2076 2077 /** 2078 * Returns a new bitmap to be used as the object outline, e.g. to visualize the drop location. 2079 * Responsibility for the bitmap is transferred to the caller. 2080 */ 2081 private Bitmap createDragOutline(View v, Canvas canvas, int padding) { 2082 final int outlineColor = getResources().getColor(android.R.color.holo_blue_light); 2083 final Bitmap b = Bitmap.createBitmap( 2084 v.getWidth() + padding, v.getHeight() + padding, Bitmap.Config.ARGB_8888); 2085 2086 canvas.setBitmap(b); 2087 drawDragView(v, canvas, padding, true); 2088 mOutlineHelper.applyMediumExpensiveOutlineWithBlur(b, canvas, outlineColor, outlineColor); 2089 canvas.setBitmap(null); 2090 return b; 2091 } 2092 2093 /** 2094 * Returns a new bitmap to be used as the object outline, e.g. to visualize the drop location. 2095 * Responsibility for the bitmap is transferred to the caller. 2096 */ 2097 private Bitmap createDragOutline(Bitmap orig, Canvas canvas, int padding, int w, int h, 2098 boolean clipAlpha) { 2099 final int outlineColor = getResources().getColor(android.R.color.holo_blue_light); 2100 final Bitmap b = Bitmap.createBitmap(w, h, Bitmap.Config.ARGB_8888); 2101 canvas.setBitmap(b); 2102 2103 Rect src = new Rect(0, 0, orig.getWidth(), orig.getHeight()); 2104 float scaleFactor = Math.min((w - padding) / (float) orig.getWidth(), 2105 (h - padding) / (float) orig.getHeight()); 2106 int scaledWidth = (int) (scaleFactor * orig.getWidth()); 2107 int scaledHeight = (int) (scaleFactor * orig.getHeight()); 2108 Rect dst = new Rect(0, 0, scaledWidth, scaledHeight); 2109 2110 // center the image 2111 dst.offset((w - scaledWidth) / 2, (h - scaledHeight) / 2); 2112 2113 canvas.drawBitmap(orig, src, dst, null); 2114 mOutlineHelper.applyMediumExpensiveOutlineWithBlur(b, canvas, outlineColor, outlineColor, 2115 clipAlpha); 2116 canvas.setBitmap(null); 2117 2118 return b; 2119 } 2120 2121 void startDrag(CellLayout.CellInfo cellInfo) { 2122 View child = cellInfo.cell; 2123 2124 // Make sure the drag was started by a long press as opposed to a long click. 2125 if (!child.isInTouchMode()) { 2126 return; 2127 } 2128 2129 mDragInfo = cellInfo; 2130 child.setVisibility(INVISIBLE); 2131 CellLayout layout = (CellLayout) child.getParent().getParent(); 2132 layout.prepareChildForDrag(child); 2133 2134 child.clearFocus(); 2135 child.setPressed(false); 2136 2137 final Canvas canvas = new Canvas(); 2138 2139 // The outline is used to visualize where the item will land if dropped 2140 mDragOutline = createDragOutline(child, canvas, DRAG_BITMAP_PADDING); 2141 beginDragShared(child, this); 2142 } 2143 2144 public void beginDragShared(View child, DragSource source) { 2145 // The drag bitmap follows the touch point around on the screen 2146 final Bitmap b = createDragBitmap(child, new Canvas(), DRAG_BITMAP_PADDING); 2147 2148 final int bmpWidth = b.getWidth(); 2149 final int bmpHeight = b.getHeight(); 2150 2151 float scale = mLauncher.getDragLayer().getLocationInDragLayer(child, mTempXY); 2152 int dragLayerX = 2153 Math.round(mTempXY[0] - (bmpWidth - scale * child.getWidth()) / 2); 2154 int dragLayerY = 2155 Math.round(mTempXY[1] - (bmpHeight - scale * bmpHeight) / 2 2156 - DRAG_BITMAP_PADDING / 2); 2157 2158 LauncherAppState app = LauncherAppState.getInstance(); 2159 DeviceProfile grid = app.getDynamicGrid().getDeviceProfile(); 2160 Point dragVisualizeOffset = null; 2161 Rect dragRect = null; 2162 if (child instanceof BubbleTextView || child instanceof PagedViewIcon) { 2163 int iconSize = grid.iconSizePx; 2164 int top = child.getPaddingTop(); 2165 int left = (bmpWidth - iconSize) / 2; 2166 int right = left + iconSize; 2167 int bottom = top + iconSize; 2168 dragLayerY += top; 2169 // Note: The drag region is used to calculate drag layer offsets, but the 2170 // dragVisualizeOffset in addition to the dragRect (the size) to position the outline. 2171 dragVisualizeOffset = new Point(-DRAG_BITMAP_PADDING / 2, DRAG_BITMAP_PADDING / 2); 2172 dragRect = new Rect(left, top, right, bottom); 2173 } else if (child instanceof FolderIcon) { 2174 int previewSize = grid.folderIconSizePx; 2175 dragRect = new Rect(0, child.getPaddingTop(), child.getWidth(), previewSize); 2176 } 2177 2178 // Clear the pressed state if necessary 2179 if (child instanceof BubbleTextView) { 2180 BubbleTextView icon = (BubbleTextView) child; 2181 icon.clearPressedOrFocusedBackground(); 2182 } 2183 2184 mDragController.startDrag(b, dragLayerX, dragLayerY, source, child.getTag(), 2185 DragController.DRAG_ACTION_MOVE, dragVisualizeOffset, dragRect, scale); 2186 2187 if (child.getParent() instanceof ShortcutAndWidgetContainer) { 2188 mDragSourceInternal = (ShortcutAndWidgetContainer) child.getParent(); 2189 } 2190 2191 b.recycle(); 2192 } 2193 2194 void addApplicationShortcut(ShortcutInfo info, CellLayout target, long container, long screenId, 2195 int cellX, int cellY, boolean insertAtFirst, int intersectX, int intersectY) { 2196 View view = mLauncher.createShortcut(R.layout.application, target, (ShortcutInfo) info); 2197 2198 final int[] cellXY = new int[2]; 2199 target.findCellForSpanThatIntersects(cellXY, 1, 1, intersectX, intersectY); 2200 addInScreen(view, container, screenId, cellXY[0], cellXY[1], 1, 1, insertAtFirst); 2201 2202 LauncherModel.addOrMoveItemInDatabase(mLauncher, info, container, screenId, cellXY[0], 2203 cellXY[1]); 2204 } 2205 2206 public boolean transitionStateShouldAllowDrop() { 2207 return ((!isSwitchingState() || mTransitionProgress > 0.5f) && mState != State.SMALL); 2208 } 2209 2210 /** 2211 * {@inheritDoc} 2212 */ 2213 public boolean acceptDrop(DragObject d) { 2214 // If it's an external drop (e.g. from All Apps), check if it should be accepted 2215 CellLayout dropTargetLayout = mDropToLayout; 2216 if (d.dragSource != this) { 2217 // Don't accept the drop if we're not over a screen at time of drop 2218 if (dropTargetLayout == null) { 2219 return false; 2220 } 2221 if (!transitionStateShouldAllowDrop()) return false; 2222 2223 mDragViewVisualCenter = getDragViewVisualCenter(d.x, d.y, d.xOffset, d.yOffset, 2224 d.dragView, mDragViewVisualCenter); 2225 2226 // We want the point to be mapped to the dragTarget. 2227 if (mLauncher.isHotseatLayout(dropTargetLayout)) { 2228 mapPointFromSelfToHotseatLayout(mLauncher.getHotseat(), mDragViewVisualCenter); 2229 } else { 2230 mapPointFromSelfToChild(dropTargetLayout, mDragViewVisualCenter, null); 2231 } 2232 2233 int spanX = 1; 2234 int spanY = 1; 2235 if (mDragInfo != null) { 2236 final CellLayout.CellInfo dragCellInfo = mDragInfo; 2237 spanX = dragCellInfo.spanX; 2238 spanY = dragCellInfo.spanY; 2239 } else { 2240 final ItemInfo dragInfo = (ItemInfo) d.dragInfo; 2241 spanX = dragInfo.spanX; 2242 spanY = dragInfo.spanY; 2243 } 2244 2245 int minSpanX = spanX; 2246 int minSpanY = spanY; 2247 if (d.dragInfo instanceof PendingAddWidgetInfo) { 2248 minSpanX = ((PendingAddWidgetInfo) d.dragInfo).minSpanX; 2249 minSpanY = ((PendingAddWidgetInfo) d.dragInfo).minSpanY; 2250 } 2251 2252 mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], 2253 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, dropTargetLayout, 2254 mTargetCell); 2255 float distance = dropTargetLayout.getDistanceFromCell(mDragViewVisualCenter[0], 2256 mDragViewVisualCenter[1], mTargetCell); 2257 if (willCreateUserFolder((ItemInfo) d.dragInfo, dropTargetLayout, 2258 mTargetCell, distance, true)) { 2259 return true; 2260 } 2261 if (willAddToExistingUserFolder((ItemInfo) d.dragInfo, dropTargetLayout, 2262 mTargetCell, distance)) { 2263 return true; 2264 } 2265 2266 int[] resultSpan = new int[2]; 2267 mTargetCell = dropTargetLayout.createArea((int) mDragViewVisualCenter[0], 2268 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, spanX, spanY, 2269 null, mTargetCell, resultSpan, CellLayout.MODE_ACCEPT_DROP); 2270 boolean foundCell = mTargetCell[0] >= 0 && mTargetCell[1] >= 0; 2271 2272 // Don't accept the drop if there's no room for the item 2273 if (!foundCell) { 2274 // Don't show the message if we are dropping on the AllApps button and the hotseat 2275 // is full 2276 boolean isHotseat = mLauncher.isHotseatLayout(dropTargetLayout); 2277 if (mTargetCell != null && isHotseat) { 2278 Hotseat hotseat = mLauncher.getHotseat(); 2279 if (hotseat.isAllAppsButtonRank( 2280 hotseat.getOrderInHotseat(mTargetCell[0], mTargetCell[1]))) { 2281 return false; 2282 } 2283 } 2284 2285 mLauncher.showOutOfSpaceMessage(isHotseat); 2286 return false; 2287 } 2288 } 2289 2290 long screenId = getIdForScreen(dropTargetLayout); 2291 if (screenId == EXTRA_EMPTY_SCREEN_ID) { 2292 commitExtraEmptyScreen(); 2293 } 2294 2295 return true; 2296 } 2297 2298 boolean willCreateUserFolder(ItemInfo info, CellLayout target, int[] targetCell, float 2299 distance, boolean considerTimeout) { 2300 if (distance > mMaxDistanceForFolderCreation) return false; 2301 View dropOverView = target.getChildAt(targetCell[0], targetCell[1]); 2302 2303 if (dropOverView != null) { 2304 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) dropOverView.getLayoutParams(); 2305 if (lp.useTmpCoords && (lp.tmpCellX != lp.cellX || lp.tmpCellY != lp.tmpCellY)) { 2306 return false; 2307 } 2308 } 2309 2310 boolean hasntMoved = false; 2311 if (mDragInfo != null) { 2312 hasntMoved = dropOverView == mDragInfo.cell; 2313 } 2314 2315 if (dropOverView == null || hasntMoved || (considerTimeout && !mCreateUserFolderOnDrop)) { 2316 return false; 2317 } 2318 2319 boolean aboveShortcut = (dropOverView.getTag() instanceof ShortcutInfo); 2320 boolean willBecomeShortcut = 2321 (info.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPLICATION || 2322 info.itemType == LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT); 2323 2324 return (aboveShortcut && willBecomeShortcut); 2325 } 2326 2327 boolean willAddToExistingUserFolder(Object dragInfo, CellLayout target, int[] targetCell, 2328 float distance) { 2329 if (distance > mMaxDistanceForFolderCreation) return false; 2330 View dropOverView = target.getChildAt(targetCell[0], targetCell[1]); 2331 2332 if (dropOverView != null) { 2333 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) dropOverView.getLayoutParams(); 2334 if (lp.useTmpCoords && (lp.tmpCellX != lp.cellX || lp.tmpCellY != lp.tmpCellY)) { 2335 return false; 2336 } 2337 } 2338 2339 if (dropOverView instanceof FolderIcon) { 2340 FolderIcon fi = (FolderIcon) dropOverView; 2341 if (fi.acceptDrop(dragInfo)) { 2342 return true; 2343 } 2344 } 2345 return false; 2346 } 2347 2348 boolean createUserFolderIfNecessary(View newView, long container, CellLayout target, 2349 int[] targetCell, float distance, boolean external, DragView dragView, 2350 Runnable postAnimationRunnable) { 2351 if (distance > mMaxDistanceForFolderCreation) return false; 2352 View v = target.getChildAt(targetCell[0], targetCell[1]); 2353 2354 boolean hasntMoved = false; 2355 if (mDragInfo != null) { 2356 CellLayout cellParent = getParentCellLayoutForView(mDragInfo.cell); 2357 hasntMoved = (mDragInfo.cellX == targetCell[0] && 2358 mDragInfo.cellY == targetCell[1]) && (cellParent == target); 2359 } 2360 2361 if (v == null || hasntMoved || !mCreateUserFolderOnDrop) return false; 2362 mCreateUserFolderOnDrop = false; 2363 final long screenId = (targetCell == null) ? mDragInfo.screenId : getIdForScreen(target); 2364 2365 boolean aboveShortcut = (v.getTag() instanceof ShortcutInfo); 2366 boolean willBecomeShortcut = (newView.getTag() instanceof ShortcutInfo); 2367 2368 if (aboveShortcut && willBecomeShortcut) { 2369 ShortcutInfo sourceInfo = (ShortcutInfo) newView.getTag(); 2370 ShortcutInfo destInfo = (ShortcutInfo) v.getTag(); 2371 // if the drag started here, we need to remove it from the workspace 2372 if (!external) { 2373 getParentCellLayoutForView(mDragInfo.cell).removeView(mDragInfo.cell); 2374 } 2375 2376 Rect folderLocation = new Rect(); 2377 float scale = mLauncher.getDragLayer().getDescendantRectRelativeToSelf(v, folderLocation); 2378 target.removeView(v); 2379 2380 FolderIcon fi = 2381 mLauncher.addFolder(target, container, screenId, targetCell[0], targetCell[1]); 2382 destInfo.cellX = -1; 2383 destInfo.cellY = -1; 2384 sourceInfo.cellX = -1; 2385 sourceInfo.cellY = -1; 2386 2387 // If the dragView is null, we can't animate 2388 boolean animate = dragView != null; 2389 if (animate) { 2390 fi.performCreateAnimation(destInfo, v, sourceInfo, dragView, folderLocation, scale, 2391 postAnimationRunnable); 2392 } else { 2393 fi.addItem(destInfo); 2394 fi.addItem(sourceInfo); 2395 } 2396 return true; 2397 } 2398 return false; 2399 } 2400 2401 boolean addToExistingFolderIfNecessary(View newView, CellLayout target, int[] targetCell, 2402 float distance, DragObject d, boolean external) { 2403 if (distance > mMaxDistanceForFolderCreation) return false; 2404 2405 View dropOverView = target.getChildAt(targetCell[0], targetCell[1]); 2406 if (!mAddToExistingFolderOnDrop) return false; 2407 mAddToExistingFolderOnDrop = false; 2408 2409 if (dropOverView instanceof FolderIcon) { 2410 FolderIcon fi = (FolderIcon) dropOverView; 2411 if (fi.acceptDrop(d.dragInfo)) { 2412 fi.onDrop(d); 2413 2414 // if the drag started here, we need to remove it from the workspace 2415 if (!external) { 2416 getParentCellLayoutForView(mDragInfo.cell).removeView(mDragInfo.cell); 2417 } 2418 return true; 2419 } 2420 } 2421 return false; 2422 } 2423 2424 public void onDrop(final DragObject d) { 2425 mDragViewVisualCenter = getDragViewVisualCenter(d.x, d.y, d.xOffset, d.yOffset, d.dragView, 2426 mDragViewVisualCenter); 2427 2428 CellLayout dropTargetLayout = mDropToLayout; 2429 2430 // We want the point to be mapped to the dragTarget. 2431 if (dropTargetLayout != null) { 2432 if (mLauncher.isHotseatLayout(dropTargetLayout)) { 2433 mapPointFromSelfToHotseatLayout(mLauncher.getHotseat(), mDragViewVisualCenter); 2434 } else { 2435 mapPointFromSelfToChild(dropTargetLayout, mDragViewVisualCenter, null); 2436 } 2437 } 2438 2439 int snapScreen = -1; 2440 boolean resizeOnDrop = false; 2441 if (d.dragSource != this) { 2442 final int[] touchXY = new int[] { (int) mDragViewVisualCenter[0], 2443 (int) mDragViewVisualCenter[1] }; 2444 onDropExternal(touchXY, d.dragInfo, dropTargetLayout, false, d); 2445 } else if (mDragInfo != null) { 2446 final View cell = mDragInfo.cell; 2447 2448 Runnable resizeRunnable = null; 2449 if (dropTargetLayout != null && !d.cancelled) { 2450 // Move internally 2451 boolean hasMovedLayouts = (getParentCellLayoutForView(cell) != dropTargetLayout); 2452 boolean hasMovedIntoHotseat = mLauncher.isHotseatLayout(dropTargetLayout); 2453 long container = hasMovedIntoHotseat ? 2454 LauncherSettings.Favorites.CONTAINER_HOTSEAT : 2455 LauncherSettings.Favorites.CONTAINER_DESKTOP; 2456 long screenId = (mTargetCell[0] < 0) ? 2457 mDragInfo.screenId : getIdForScreen(dropTargetLayout); 2458 int spanX = mDragInfo != null ? mDragInfo.spanX : 1; 2459 int spanY = mDragInfo != null ? mDragInfo.spanY : 1; 2460 // First we find the cell nearest to point at which the item is 2461 // dropped, without any consideration to whether there is an item there. 2462 2463 mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], (int) 2464 mDragViewVisualCenter[1], spanX, spanY, dropTargetLayout, mTargetCell); 2465 float distance = dropTargetLayout.getDistanceFromCell(mDragViewVisualCenter[0], 2466 mDragViewVisualCenter[1], mTargetCell); 2467 2468 // If the item being dropped is a shortcut and the nearest drop 2469 // cell also contains a shortcut, then create a folder with the two shortcuts. 2470 if (!mInScrollArea && createUserFolderIfNecessary(cell, container, 2471 dropTargetLayout, mTargetCell, distance, false, d.dragView, null)) { 2472 stripEmptyScreens(); 2473 return; 2474 } 2475 2476 if (addToExistingFolderIfNecessary(cell, dropTargetLayout, mTargetCell, 2477 distance, d, false)) { 2478 stripEmptyScreens(); 2479 return; 2480 } 2481 2482 // Aside from the special case where we're dropping a shortcut onto a shortcut, 2483 // we need to find the nearest cell location that is vacant 2484 ItemInfo item = (ItemInfo) d.dragInfo; 2485 int minSpanX = item.spanX; 2486 int minSpanY = item.spanY; 2487 if (item.minSpanX > 0 && item.minSpanY > 0) { 2488 minSpanX = item.minSpanX; 2489 minSpanY = item.minSpanY; 2490 } 2491 2492 int[] resultSpan = new int[2]; 2493 mTargetCell = dropTargetLayout.createArea((int) mDragViewVisualCenter[0], 2494 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, spanX, spanY, cell, 2495 mTargetCell, resultSpan, CellLayout.MODE_ON_DROP); 2496 2497 boolean foundCell = mTargetCell[0] >= 0 && mTargetCell[1] >= 0; 2498 2499 // if the widget resizes on drop 2500 if (foundCell && (cell instanceof AppWidgetHostView) && 2501 (resultSpan[0] != item.spanX || resultSpan[1] != item.spanY)) { 2502 resizeOnDrop = true; 2503 item.spanX = resultSpan[0]; 2504 item.spanY = resultSpan[1]; 2505 AppWidgetHostView awhv = (AppWidgetHostView) cell; 2506 AppWidgetResizeFrame.updateWidgetSizeRanges(awhv, mLauncher, resultSpan[0], 2507 resultSpan[1]); 2508 } 2509 2510 if (getScreenIdForPageIndex(mCurrentPage) != screenId && !hasMovedIntoHotseat) { 2511 snapScreen = getPageIndexForScreenId(screenId); 2512 snapToPage(snapScreen); 2513 } 2514 2515 if (foundCell) { 2516 final ItemInfo info = (ItemInfo) cell.getTag(); 2517 if (hasMovedLayouts) { 2518 // Reparent the view 2519 getParentCellLayoutForView(cell).removeView(cell); 2520 addInScreen(cell, container, screenId, mTargetCell[0], mTargetCell[1], 2521 info.spanX, info.spanY); 2522 } 2523 2524 // update the item's position after drop 2525 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) cell.getLayoutParams(); 2526 lp.cellX = lp.tmpCellX = mTargetCell[0]; 2527 lp.cellY = lp.tmpCellY = mTargetCell[1]; 2528 lp.cellHSpan = item.spanX; 2529 lp.cellVSpan = item.spanY; 2530 lp.isLockedToGrid = true; 2531 cell.setId(LauncherModel.getCellLayoutChildId(container, mDragInfo.screenId, 2532 mTargetCell[0], mTargetCell[1], mDragInfo.spanX, mDragInfo.spanY)); 2533 2534 if (container != LauncherSettings.Favorites.CONTAINER_HOTSEAT && 2535 cell instanceof LauncherAppWidgetHostView) { 2536 final CellLayout cellLayout = dropTargetLayout; 2537 // We post this call so that the widget has a chance to be placed 2538 // in its final location 2539 2540 final LauncherAppWidgetHostView hostView = (LauncherAppWidgetHostView) cell; 2541 AppWidgetProviderInfo pinfo = hostView.getAppWidgetInfo(); 2542 if (pinfo != null && 2543 pinfo.resizeMode != AppWidgetProviderInfo.RESIZE_NONE) { 2544 final Runnable addResizeFrame = new Runnable() { 2545 public void run() { 2546 DragLayer dragLayer = mLauncher.getDragLayer(); 2547 dragLayer.addResizeFrame(info, hostView, cellLayout); 2548 } 2549 }; 2550 resizeRunnable = (new Runnable() { 2551 public void run() { 2552 if (!isPageMoving()) { 2553 addResizeFrame.run(); 2554 } else { 2555 mDelayedResizeRunnable = addResizeFrame; 2556 } 2557 } 2558 }); 2559 } 2560 } 2561 2562 LauncherModel.moveItemInDatabase(mLauncher, info, container, screenId, lp.cellX, 2563 lp.cellY); 2564 } else { 2565 // If we can't find a drop location, we return the item to its original position 2566 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) cell.getLayoutParams(); 2567 mTargetCell[0] = lp.cellX; 2568 mTargetCell[1] = lp.cellY; 2569 CellLayout layout = (CellLayout) cell.getParent().getParent(); 2570 layout.markCellsAsOccupiedForView(cell); 2571 } 2572 } 2573 2574 final CellLayout parent = (CellLayout) cell.getParent().getParent(); 2575 final Runnable finalResizeRunnable = resizeRunnable; 2576 // Prepare it to be animated into its new position 2577 // This must be called after the view has been re-parented 2578 final Runnable onCompleteRunnable = new Runnable() { 2579 @Override 2580 public void run() { 2581 mAnimatingViewIntoPlace = false; 2582 updateChildrenLayersEnabled(false); 2583 if (finalResizeRunnable != null) { 2584 finalResizeRunnable.run(); 2585 } 2586 stripEmptyScreens(); 2587 } 2588 }; 2589 mAnimatingViewIntoPlace = true; 2590 if (d.dragView.hasDrawn()) { 2591 final ItemInfo info = (ItemInfo) cell.getTag(); 2592 if (info.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET) { 2593 int animationType = resizeOnDrop ? ANIMATE_INTO_POSITION_AND_RESIZE : 2594 ANIMATE_INTO_POSITION_AND_DISAPPEAR; 2595 animateWidgetDrop(info, parent, d.dragView, 2596 onCompleteRunnable, animationType, cell, false); 2597 } else { 2598 int duration = snapScreen < 0 ? -1 : ADJACENT_SCREEN_DROP_DURATION; 2599 mLauncher.getDragLayer().animateViewIntoPosition(d.dragView, cell, duration, 2600 onCompleteRunnable, this); 2601 } 2602 } else { 2603 d.deferDragViewCleanupPostAnimation = false; 2604 cell.setVisibility(VISIBLE); 2605 } 2606 parent.onDropChild(cell); 2607 } 2608 } 2609 2610 public void setFinalScrollForPageChange(int pageIndex) { 2611 CellLayout cl = (CellLayout) getChildAt(pageIndex); 2612 if (cl != null) { 2613 mSavedScrollX = getScrollX(); 2614 mSavedTranslationX = cl.getTranslationX(); 2615 mSavedRotationY = cl.getRotationY(); 2616 final int newX = getScrollForPage(pageIndex); 2617 setScrollX(newX); 2618 cl.setTranslationX(0f); 2619 cl.setRotationY(0f); 2620 } 2621 } 2622 2623 public void resetFinalScrollForPageChange(int pageIndex) { 2624 if (pageIndex >= 0) { 2625 CellLayout cl = (CellLayout) getChildAt(pageIndex); 2626 setScrollX(mSavedScrollX); 2627 cl.setTranslationX(mSavedTranslationX); 2628 cl.setRotationY(mSavedRotationY); 2629 } 2630 } 2631 2632 public void getViewLocationRelativeToSelf(View v, int[] location) { 2633 getLocationInWindow(location); 2634 int x = location[0]; 2635 int y = location[1]; 2636 2637 v.getLocationInWindow(location); 2638 int vX = location[0]; 2639 int vY = location[1]; 2640 2641 location[0] = vX - x; 2642 location[1] = vY - y; 2643 } 2644 2645 public void onDragEnter(DragObject d) { 2646 mDragEnforcer.onDragEnter(); 2647 mCreateUserFolderOnDrop = false; 2648 mAddToExistingFolderOnDrop = false; 2649 2650 mDropToLayout = null; 2651 CellLayout layout = getCurrentDropLayout(); 2652 setCurrentDropLayout(layout); 2653 setCurrentDragOverlappingLayout(layout); 2654 2655 // Because we don't have space in the Phone UI (the CellLayouts run to the edge) we 2656 // don't need to show the outlines 2657 if (LauncherAppState.getInstance().isScreenLarge()) { 2658 showOutlines(); 2659 } 2660 } 2661 2662 static Rect getCellLayoutMetrics(Launcher launcher, int orientation) { 2663 LauncherAppState app = LauncherAppState.getInstance(); 2664 DeviceProfile grid = app.getDynamicGrid().getDeviceProfile(); 2665 2666 Resources res = launcher.getResources(); 2667 Display display = launcher.getWindowManager().getDefaultDisplay(); 2668 Point smallestSize = new Point(); 2669 Point largestSize = new Point(); 2670 display.getCurrentSizeRange(smallestSize, largestSize); 2671 int countX = (int) grid.numColumns; 2672 int countY = (int) grid.numRows; 2673 if (orientation == CellLayout.LANDSCAPE) { 2674 if (mLandscapeCellLayoutMetrics == null) { 2675 Rect padding = grid.getWorkspacePadding(CellLayout.LANDSCAPE); 2676 int width = largestSize.x - padding.left - padding.right; 2677 int height = smallestSize.y - padding.top - padding.bottom; 2678 mLandscapeCellLayoutMetrics = new Rect(); 2679 CellLayout.getMetrics(mLandscapeCellLayoutMetrics, width, height, 2680 countX, countY); 2681 } 2682 return mLandscapeCellLayoutMetrics; 2683 } else if (orientation == CellLayout.PORTRAIT) { 2684 if (mPortraitCellLayoutMetrics == null) { 2685 Rect padding = grid.getWorkspacePadding(CellLayout.PORTRAIT); 2686 int width = smallestSize.x - padding.left - padding.right; 2687 int height = largestSize.y - padding.top - padding.bottom; 2688 mPortraitCellLayoutMetrics = new Rect(); 2689 CellLayout.getMetrics(mPortraitCellLayoutMetrics, width, height, 2690 countX, countY); 2691 } 2692 return mPortraitCellLayoutMetrics; 2693 } 2694 return null; 2695 } 2696 2697 public void onDragExit(DragObject d) { 2698 mDragEnforcer.onDragExit(); 2699 2700 // Here we store the final page that will be dropped to, if the workspace in fact 2701 // receives the drop 2702 if (mInScrollArea) { 2703 if (isPageMoving()) { 2704 // If the user drops while the page is scrolling, we should use that page as the 2705 // destination instead of the page that is being hovered over. 2706 mDropToLayout = (CellLayout) getPageAt(getNextPage()); 2707 } else { 2708 mDropToLayout = mDragOverlappingLayout; 2709 } 2710 } else { 2711 mDropToLayout = mDragTargetLayout; 2712 } 2713 2714 if (mDragMode == DRAG_MODE_CREATE_FOLDER) { 2715 mCreateUserFolderOnDrop = true; 2716 } else if (mDragMode == DRAG_MODE_ADD_TO_FOLDER) { 2717 mAddToExistingFolderOnDrop = true; 2718 } 2719 2720 // Reset the scroll area and previous drag target 2721 onResetScrollArea(); 2722 setCurrentDropLayout(null); 2723 setCurrentDragOverlappingLayout(null); 2724 2725 mSpringLoadedDragController.cancel(); 2726 2727 if (!mIsPageMoving) { 2728 hideOutlines(); 2729 } 2730 } 2731 2732 void setCurrentDropLayout(CellLayout layout) { 2733 if (mDragTargetLayout != null) { 2734 mDragTargetLayout.revertTempState(); 2735 mDragTargetLayout.onDragExit(); 2736 } 2737 mDragTargetLayout = layout; 2738 if (mDragTargetLayout != null) { 2739 mDragTargetLayout.onDragEnter(); 2740 } 2741 cleanupReorder(true); 2742 cleanupFolderCreation(); 2743 setCurrentDropOverCell(-1, -1); 2744 } 2745 2746 void setCurrentDragOverlappingLayout(CellLayout layout) { 2747 if (mDragOverlappingLayout != null) { 2748 mDragOverlappingLayout.setIsDragOverlapping(false); 2749 } 2750 mDragOverlappingLayout = layout; 2751 if (mDragOverlappingLayout != null) { 2752 mDragOverlappingLayout.setIsDragOverlapping(true); 2753 } 2754 invalidate(); 2755 } 2756 2757 void setCurrentDropOverCell(int x, int y) { 2758 if (x != mDragOverX || y != mDragOverY) { 2759 mDragOverX = x; 2760 mDragOverY = y; 2761 setDragMode(DRAG_MODE_NONE); 2762 } 2763 } 2764 2765 void setDragMode(int dragMode) { 2766 if (dragMode != mDragMode) { 2767 if (dragMode == DRAG_MODE_NONE) { 2768 cleanupAddToFolder(); 2769 // We don't want to cancel the re-order alarm every time the target cell changes 2770 // as this feels to slow / unresponsive. 2771 cleanupReorder(false); 2772 cleanupFolderCreation(); 2773 } else if (dragMode == DRAG_MODE_ADD_TO_FOLDER) { 2774 cleanupReorder(true); 2775 cleanupFolderCreation(); 2776 } else if (dragMode == DRAG_MODE_CREATE_FOLDER) { 2777 cleanupAddToFolder(); 2778 cleanupReorder(true); 2779 } else if (dragMode == DRAG_MODE_REORDER) { 2780 cleanupAddToFolder(); 2781 cleanupFolderCreation(); 2782 } 2783 mDragMode = dragMode; 2784 } 2785 } 2786 2787 private void cleanupFolderCreation() { 2788 if (mDragFolderRingAnimator != null) { 2789 mDragFolderRingAnimator.animateToNaturalState(); 2790 } 2791 mFolderCreationAlarm.cancelAlarm(); 2792 } 2793 2794 private void cleanupAddToFolder() { 2795 if (mDragOverFolderIcon != null) { 2796 mDragOverFolderIcon.onDragExit(null); 2797 mDragOverFolderIcon = null; 2798 } 2799 } 2800 2801 private void cleanupReorder(boolean cancelAlarm) { 2802 // Any pending reorders are canceled 2803 if (cancelAlarm) { 2804 mReorderAlarm.cancelAlarm(); 2805 } 2806 mLastReorderX = -1; 2807 mLastReorderY = -1; 2808 } 2809 2810 /* 2811 * 2812 * Convert the 2D coordinate xy from the parent View's coordinate space to this CellLayout's 2813 * coordinate space. The argument xy is modified with the return result. 2814 * 2815 * if cachedInverseMatrix is not null, this method will just use that matrix instead of 2816 * computing it itself; we use this to avoid redundant matrix inversions in 2817 * findMatchingPageForDragOver 2818 * 2819 */ 2820 void mapPointFromSelfToChild(View v, float[] xy, Matrix cachedInverseMatrix) { 2821 xy[0] = xy[0] - v.getLeft(); 2822 xy[1] = xy[1] - v.getTop(); 2823 } 2824 2825 boolean isPointInSelfOverHotseat(int x, int y, Rect r) { 2826 if (r == null) { 2827 r = new Rect(); 2828 } 2829 mTempPt[0] = x; 2830 mTempPt[1] = y; 2831 mLauncher.getDragLayer().getDescendantCoordRelativeToSelf(this, mTempPt, true); 2832 mLauncher.getHotseat().getHitRect(r); 2833 if (r.contains(mTempPt[0], mTempPt[1])) { 2834 return true; 2835 } 2836 return false; 2837 } 2838 2839 void mapPointFromSelfToHotseatLayout(Hotseat hotseat, float[] xy) { 2840 mTempPt[0] = (int) xy[0]; 2841 mTempPt[1] = (int) xy[1]; 2842 mLauncher.getDragLayer().getDescendantCoordRelativeToSelf(this, mTempPt, true); 2843 mLauncher.getDragLayer().mapCoordInSelfToDescendent(hotseat.getLayout(), mTempPt); 2844 2845 xy[0] = mTempPt[0]; 2846 xy[1] = mTempPt[1]; 2847 } 2848 2849 /* 2850 * 2851 * Convert the 2D coordinate xy from this CellLayout's coordinate space to 2852 * the parent View's coordinate space. The argument xy is modified with the return result. 2853 * 2854 */ 2855 void mapPointFromChildToSelf(View v, float[] xy) { 2856 xy[0] += v.getLeft(); 2857 xy[1] += v.getTop(); 2858 } 2859 2860 static private float squaredDistance(float[] point1, float[] point2) { 2861 float distanceX = point1[0] - point2[0]; 2862 float distanceY = point2[1] - point2[1]; 2863 return distanceX * distanceX + distanceY * distanceY; 2864 } 2865 2866 /* 2867 * 2868 * This method returns the CellLayout that is currently being dragged to. In order to drag 2869 * to a CellLayout, either the touch point must be directly over the CellLayout, or as a second 2870 * strategy, we see if the dragView is overlapping any CellLayout and choose the closest one 2871 * 2872 * Return null if no CellLayout is currently being dragged over 2873 * 2874 */ 2875 private CellLayout findMatchingPageForDragOver( 2876 DragView dragView, float originX, float originY, boolean exact) { 2877 // We loop through all the screens (ie CellLayouts) and see which ones overlap 2878 // with the item being dragged and then choose the one that's closest to the touch point 2879 final int screenCount = getChildCount(); 2880 CellLayout bestMatchingScreen = null; 2881 float smallestDistSoFar = Float.MAX_VALUE; 2882 2883 for (int i = 0; i < screenCount; i++) { 2884 CellLayout cl = (CellLayout) getChildAt(i); 2885 2886 final float[] touchXy = {originX, originY}; 2887 // Transform the touch coordinates to the CellLayout's local coordinates 2888 // If the touch point is within the bounds of the cell layout, we can return immediately 2889 cl.getMatrix().invert(mTempInverseMatrix); 2890 mapPointFromSelfToChild(cl, touchXy, mTempInverseMatrix); 2891 2892 if (touchXy[0] >= 0 && touchXy[0] <= cl.getWidth() && 2893 touchXy[1] >= 0 && touchXy[1] <= cl.getHeight()) { 2894 return cl; 2895 } 2896 2897 if (!exact) { 2898 // Get the center of the cell layout in screen coordinates 2899 final float[] cellLayoutCenter = mTempCellLayoutCenterCoordinates; 2900 cellLayoutCenter[0] = cl.getWidth()/2; 2901 cellLayoutCenter[1] = cl.getHeight()/2; 2902 mapPointFromChildToSelf(cl, cellLayoutCenter); 2903 2904 touchXy[0] = originX; 2905 touchXy[1] = originY; 2906 2907 // Calculate the distance between the center of the CellLayout 2908 // and the touch point 2909 float dist = squaredDistance(touchXy, cellLayoutCenter); 2910 2911 if (dist < smallestDistSoFar) { 2912 smallestDistSoFar = dist; 2913 bestMatchingScreen = cl; 2914 } 2915 } 2916 } 2917 return bestMatchingScreen; 2918 } 2919 2920 // This is used to compute the visual center of the dragView. This point is then 2921 // used to visualize drop locations and determine where to drop an item. The idea is that 2922 // the visual center represents the user's interpretation of where the item is, and hence 2923 // is the appropriate point to use when determining drop location. 2924 private float[] getDragViewVisualCenter(int x, int y, int xOffset, int yOffset, 2925 DragView dragView, float[] recycle) { 2926 float res[]; 2927 if (recycle == null) { 2928 res = new float[2]; 2929 } else { 2930 res = recycle; 2931 } 2932 2933 // First off, the drag view has been shifted in a way that is not represented in the 2934 // x and y values or the x/yOffsets. Here we account for that shift. 2935 x += getResources().getDimensionPixelSize(R.dimen.dragViewOffsetX); 2936 y += getResources().getDimensionPixelSize(R.dimen.dragViewOffsetY); 2937 2938 // These represent the visual top and left of drag view if a dragRect was provided. 2939 // If a dragRect was not provided, then they correspond to the actual view left and 2940 // top, as the dragRect is in that case taken to be the entire dragView. 2941 // R.dimen.dragViewOffsetY. 2942 int left = x - xOffset; 2943 int top = y - yOffset; 2944 2945 // In order to find the visual center, we shift by half the dragRect 2946 res[0] = left + dragView.getDragRegion().width() / 2; 2947 res[1] = top + dragView.getDragRegion().height() / 2; 2948 2949 return res; 2950 } 2951 2952 private boolean isDragWidget(DragObject d) { 2953 return (d.dragInfo instanceof LauncherAppWidgetInfo || 2954 d.dragInfo instanceof PendingAddWidgetInfo); 2955 } 2956 private boolean isExternalDragWidget(DragObject d) { 2957 return d.dragSource != this && isDragWidget(d); 2958 } 2959 2960 public void onDragOver(DragObject d) { 2961 // Skip drag over events while we are dragging over side pages 2962 if (mInScrollArea || mIsSwitchingState || mState == State.SMALL) return; 2963 2964 Rect r = new Rect(); 2965 CellLayout layout = null; 2966 ItemInfo item = (ItemInfo) d.dragInfo; 2967 2968 // Ensure that we have proper spans for the item that we are dropping 2969 if (item.spanX < 0 || item.spanY < 0) throw new RuntimeException("Improper spans found"); 2970 mDragViewVisualCenter = getDragViewVisualCenter(d.x, d.y, d.xOffset, d.yOffset, 2971 d.dragView, mDragViewVisualCenter); 2972 2973 final View child = (mDragInfo == null) ? null : mDragInfo.cell; 2974 // Identify whether we have dragged over a side page 2975 if (isSmall()) { 2976 if (mLauncher.getHotseat() != null && !isExternalDragWidget(d)) { 2977 if (isPointInSelfOverHotseat(d.x, d.y, r)) { 2978 layout = mLauncher.getHotseat().getLayout(); 2979 } 2980 } 2981 if (layout == null) { 2982 layout = findMatchingPageForDragOver(d.dragView, d.x, d.y, false); 2983 } 2984 if (layout != mDragTargetLayout) { 2985 setCurrentDropLayout(layout); 2986 setCurrentDragOverlappingLayout(layout); 2987 2988 boolean isInSpringLoadedMode = (mState == State.SPRING_LOADED); 2989 if (isInSpringLoadedMode) { 2990 if (mLauncher.isHotseatLayout(layout)) { 2991 mSpringLoadedDragController.cancel(); 2992 } else { 2993 mSpringLoadedDragController.setAlarm(mDragTargetLayout); 2994 } 2995 } 2996 } 2997 } else { 2998 // Test to see if we are over the hotseat otherwise just use the current page 2999 if (mLauncher.getHotseat() != null && !isDragWidget(d)) { 3000 if (isPointInSelfOverHotseat(d.x, d.y, r)) { 3001 layout = mLauncher.getHotseat().getLayout(); 3002 } 3003 } 3004 if (layout == null) { 3005 layout = getCurrentDropLayout(); 3006 } 3007 if (layout != mDragTargetLayout) { 3008 setCurrentDropLayout(layout); 3009 setCurrentDragOverlappingLayout(layout); 3010 } 3011 } 3012 3013 // Handle the drag over 3014 if (mDragTargetLayout != null) { 3015 // We want the point to be mapped to the dragTarget. 3016 if (mLauncher.isHotseatLayout(mDragTargetLayout)) { 3017 mapPointFromSelfToHotseatLayout(mLauncher.getHotseat(), mDragViewVisualCenter); 3018 } else { 3019 mapPointFromSelfToChild(mDragTargetLayout, mDragViewVisualCenter, null); 3020 } 3021 3022 ItemInfo info = (ItemInfo) d.dragInfo; 3023 3024 mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], 3025 (int) mDragViewVisualCenter[1], item.spanX, item.spanY, 3026 mDragTargetLayout, mTargetCell); 3027 3028 setCurrentDropOverCell(mTargetCell[0], mTargetCell[1]); 3029 3030 float targetCellDistance = mDragTargetLayout.getDistanceFromCell( 3031 mDragViewVisualCenter[0], mDragViewVisualCenter[1], mTargetCell); 3032 3033 final View dragOverView = mDragTargetLayout.getChildAt(mTargetCell[0], 3034 mTargetCell[1]); 3035 3036 manageFolderFeedback(info, mDragTargetLayout, mTargetCell, 3037 targetCellDistance, dragOverView); 3038 3039 int minSpanX = item.spanX; 3040 int minSpanY = item.spanY; 3041 if (item.minSpanX > 0 && item.minSpanY > 0) { 3042 minSpanX = item.minSpanX; 3043 minSpanY = item.minSpanY; 3044 } 3045 3046 boolean nearestDropOccupied = mDragTargetLayout.isNearestDropLocationOccupied((int) 3047 mDragViewVisualCenter[0], (int) mDragViewVisualCenter[1], item.spanX, 3048 item.spanY, child, mTargetCell); 3049 3050 if (!nearestDropOccupied) { 3051 mDragTargetLayout.visualizeDropLocation(child, mDragOutline, 3052 (int) mDragViewVisualCenter[0], (int) mDragViewVisualCenter[1], 3053 mTargetCell[0], mTargetCell[1], item.spanX, item.spanY, false, 3054 d.dragView.getDragVisualizeOffset(), d.dragView.getDragRegion()); 3055 } else if ((mDragMode == DRAG_MODE_NONE || mDragMode == DRAG_MODE_REORDER) 3056 && !mReorderAlarm.alarmPending() && (mLastReorderX != mTargetCell[0] || 3057 mLastReorderY != mTargetCell[1])) { 3058 3059 // Otherwise, if we aren't adding to or creating a folder and there's no pending 3060 // reorder, then we schedule a reorder 3061 ReorderAlarmListener listener = new ReorderAlarmListener(mDragViewVisualCenter, 3062 minSpanX, minSpanY, item.spanX, item.spanY, d.dragView, child); 3063 mReorderAlarm.setOnAlarmListener(listener); 3064 mReorderAlarm.setAlarm(REORDER_TIMEOUT); 3065 } 3066 3067 if (mDragMode == DRAG_MODE_CREATE_FOLDER || mDragMode == DRAG_MODE_ADD_TO_FOLDER || 3068 !nearestDropOccupied) { 3069 if (mDragTargetLayout != null) { 3070 mDragTargetLayout.revertTempState(); 3071 } 3072 } 3073 } 3074 } 3075 3076 private void manageFolderFeedback(ItemInfo info, CellLayout targetLayout, 3077 int[] targetCell, float distance, View dragOverView) { 3078 boolean userFolderPending = willCreateUserFolder(info, targetLayout, targetCell, distance, 3079 false); 3080 3081 if (mDragMode == DRAG_MODE_NONE && userFolderPending && 3082 !mFolderCreationAlarm.alarmPending()) { 3083 mFolderCreationAlarm.setOnAlarmListener(new 3084 FolderCreationAlarmListener(targetLayout, targetCell[0], targetCell[1])); 3085 mFolderCreationAlarm.setAlarm(FOLDER_CREATION_TIMEOUT); 3086 return; 3087 } 3088 3089 boolean willAddToFolder = 3090 willAddToExistingUserFolder(info, targetLayout, targetCell, distance); 3091 3092 if (willAddToFolder && mDragMode == DRAG_MODE_NONE) { 3093 mDragOverFolderIcon = ((FolderIcon) dragOverView); 3094 mDragOverFolderIcon.onDragEnter(info); 3095 if (targetLayout != null) { 3096 targetLayout.clearDragOutlines(); 3097 } 3098 setDragMode(DRAG_MODE_ADD_TO_FOLDER); 3099 return; 3100 } 3101 3102 if (mDragMode == DRAG_MODE_ADD_TO_FOLDER && !willAddToFolder) { 3103 setDragMode(DRAG_MODE_NONE); 3104 } 3105 if (mDragMode == DRAG_MODE_CREATE_FOLDER && !userFolderPending) { 3106 setDragMode(DRAG_MODE_NONE); 3107 } 3108 3109 return; 3110 } 3111 3112 class FolderCreationAlarmListener implements OnAlarmListener { 3113 CellLayout layout; 3114 int cellX; 3115 int cellY; 3116 3117 public FolderCreationAlarmListener(CellLayout layout, int cellX, int cellY) { 3118 this.layout = layout; 3119 this.cellX = cellX; 3120 this.cellY = cellY; 3121 } 3122 3123 public void onAlarm(Alarm alarm) { 3124 if (mDragFolderRingAnimator == null) { 3125 mDragFolderRingAnimator = new FolderRingAnimator(mLauncher, null); 3126 } 3127 mDragFolderRingAnimator.setCell(cellX, cellY); 3128 mDragFolderRingAnimator.setCellLayout(layout); 3129 mDragFolderRingAnimator.animateToAcceptState(); 3130 layout.showFolderAccept(mDragFolderRingAnimator); 3131 layout.clearDragOutlines(); 3132 setDragMode(DRAG_MODE_CREATE_FOLDER); 3133 } 3134 } 3135 3136 class ReorderAlarmListener implements OnAlarmListener { 3137 float[] dragViewCenter; 3138 int minSpanX, minSpanY, spanX, spanY; 3139 DragView dragView; 3140 View child; 3141 3142 public ReorderAlarmListener(float[] dragViewCenter, int minSpanX, int minSpanY, int spanX, 3143 int spanY, DragView dragView, View child) { 3144 this.dragViewCenter = dragViewCenter; 3145 this.minSpanX = minSpanX; 3146 this.minSpanY = minSpanY; 3147 this.spanX = spanX; 3148 this.spanY = spanY; 3149 this.child = child; 3150 this.dragView = dragView; 3151 } 3152 3153 public void onAlarm(Alarm alarm) { 3154 int[] resultSpan = new int[2]; 3155 mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], 3156 (int) mDragViewVisualCenter[1], spanX, spanY, mDragTargetLayout, mTargetCell); 3157 mLastReorderX = mTargetCell[0]; 3158 mLastReorderY = mTargetCell[1]; 3159 3160 mTargetCell = mDragTargetLayout.createArea((int) mDragViewVisualCenter[0], 3161 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, spanX, spanY, 3162 child, mTargetCell, resultSpan, CellLayout.MODE_DRAG_OVER); 3163 3164 if (mTargetCell[0] < 0 || mTargetCell[1] < 0) { 3165 mDragTargetLayout.revertTempState(); 3166 } else { 3167 setDragMode(DRAG_MODE_REORDER); 3168 } 3169 3170 boolean resize = resultSpan[0] != spanX || resultSpan[1] != spanY; 3171 mDragTargetLayout.visualizeDropLocation(child, mDragOutline, 3172 (int) mDragViewVisualCenter[0], (int) mDragViewVisualCenter[1], 3173 mTargetCell[0], mTargetCell[1], resultSpan[0], resultSpan[1], resize, 3174 dragView.getDragVisualizeOffset(), dragView.getDragRegion()); 3175 } 3176 } 3177 3178 @Override 3179 public void getHitRectRelativeToDragLayer(Rect outRect) { 3180 // We want the workspace to have the whole area of the display (it will find the correct 3181 // cell layout to drop to in the existing drag/drop logic. 3182 mLauncher.getDragLayer().getDescendantRectRelativeToSelf(this, outRect); 3183 } 3184 3185 /** 3186 * Add the item specified by dragInfo to the given layout. 3187 * @return true if successful 3188 */ 3189 public boolean addExternalItemToScreen(ItemInfo dragInfo, CellLayout layout) { 3190 if (layout.findCellForSpan(mTempEstimate, dragInfo.spanX, dragInfo.spanY)) { 3191 onDropExternal(dragInfo.dropPos, (ItemInfo) dragInfo, (CellLayout) layout, false); 3192 return true; 3193 } 3194 mLauncher.showOutOfSpaceMessage(mLauncher.isHotseatLayout(layout)); 3195 return false; 3196 } 3197 3198 private void onDropExternal(int[] touchXY, Object dragInfo, 3199 CellLayout cellLayout, boolean insertAtFirst) { 3200 onDropExternal(touchXY, dragInfo, cellLayout, insertAtFirst, null); 3201 } 3202 3203 /** 3204 * Drop an item that didn't originate on one of the workspace screens. 3205 * It may have come from Launcher (e.g. from all apps or customize), or it may have 3206 * come from another app altogether. 3207 * 3208 * NOTE: This can also be called when we are outside of a drag event, when we want 3209 * to add an item to one of the workspace screens. 3210 */ 3211 private void onDropExternal(final int[] touchXY, final Object dragInfo, 3212 final CellLayout cellLayout, boolean insertAtFirst, DragObject d) { 3213 final Runnable exitSpringLoadedRunnable = new Runnable() { 3214 @Override 3215 public void run() { 3216 mLauncher.exitSpringLoadedDragModeDelayed(true, false, null); 3217 } 3218 }; 3219 3220 ItemInfo info = (ItemInfo) dragInfo; 3221 int spanX = info.spanX; 3222 int spanY = info.spanY; 3223 if (mDragInfo != null) { 3224 spanX = mDragInfo.spanX; 3225 spanY = mDragInfo.spanY; 3226 } 3227 3228 final long container = mLauncher.isHotseatLayout(cellLayout) ? 3229 LauncherSettings.Favorites.CONTAINER_HOTSEAT : 3230 LauncherSettings.Favorites.CONTAINER_DESKTOP; 3231 final long screenId = getIdForScreen(cellLayout); 3232 if (!mLauncher.isHotseatLayout(cellLayout) 3233 && screenId != getScreenIdForPageIndex(mCurrentPage) 3234 && mState != State.SPRING_LOADED) { 3235 snapToScreenId(screenId, null); 3236 } 3237 3238 if (info instanceof PendingAddItemInfo) { 3239 final PendingAddItemInfo pendingInfo = (PendingAddItemInfo) dragInfo; 3240 3241 boolean findNearestVacantCell = true; 3242 if (pendingInfo.itemType == LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT) { 3243 mTargetCell = findNearestArea((int) touchXY[0], (int) touchXY[1], spanX, spanY, 3244 cellLayout, mTargetCell); 3245 float distance = cellLayout.getDistanceFromCell(mDragViewVisualCenter[0], 3246 mDragViewVisualCenter[1], mTargetCell); 3247 if (willCreateUserFolder((ItemInfo) d.dragInfo, cellLayout, mTargetCell, 3248 distance, true) || willAddToExistingUserFolder((ItemInfo) d.dragInfo, 3249 cellLayout, mTargetCell, distance)) { 3250 findNearestVacantCell = false; 3251 } 3252 } 3253 3254 final ItemInfo item = (ItemInfo) d.dragInfo; 3255 boolean updateWidgetSize = false; 3256 if (findNearestVacantCell) { 3257 int minSpanX = item.spanX; 3258 int minSpanY = item.spanY; 3259 if (item.minSpanX > 0 && item.minSpanY > 0) { 3260 minSpanX = item.minSpanX; 3261 minSpanY = item.minSpanY; 3262 } 3263 int[] resultSpan = new int[2]; 3264 mTargetCell = cellLayout.createArea((int) mDragViewVisualCenter[0], 3265 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, info.spanX, info.spanY, 3266 null, mTargetCell, resultSpan, CellLayout.MODE_ON_DROP_EXTERNAL); 3267 3268 if (resultSpan[0] != item.spanX || resultSpan[1] != item.spanY) { 3269 updateWidgetSize = true; 3270 } 3271 item.spanX = resultSpan[0]; 3272 item.spanY = resultSpan[1]; 3273 } 3274 3275 Runnable onAnimationCompleteRunnable = new Runnable() { 3276 @Override 3277 public void run() { 3278 // When dragging and dropping from customization tray, we deal with creating 3279 // widgets/shortcuts/folders in a slightly different way 3280 switch (pendingInfo.itemType) { 3281 case LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET: 3282 int span[] = new int[2]; 3283 span[0] = item.spanX; 3284 span[1] = item.spanY; 3285 mLauncher.addAppWidgetFromDrop((PendingAddWidgetInfo) pendingInfo, 3286 container, screenId, mTargetCell, span, null); 3287 break; 3288 case LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT: 3289 mLauncher.processShortcutFromDrop(pendingInfo.componentName, 3290 container, screenId, mTargetCell, null); 3291 break; 3292 default: 3293 throw new IllegalStateException("Unknown item type: " + 3294 pendingInfo.itemType); 3295 } 3296 } 3297 }; 3298 View finalView = pendingInfo.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET 3299 ? ((PendingAddWidgetInfo) pendingInfo).boundWidget : null; 3300 3301 if (finalView instanceof AppWidgetHostView && updateWidgetSize) { 3302 AppWidgetHostView awhv = (AppWidgetHostView) finalView; 3303 AppWidgetResizeFrame.updateWidgetSizeRanges(awhv, mLauncher, item.spanX, 3304 item.spanY); 3305 } 3306 3307 int animationStyle = ANIMATE_INTO_POSITION_AND_DISAPPEAR; 3308 if (pendingInfo.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET && 3309 ((PendingAddWidgetInfo) pendingInfo).info.configure != null) { 3310 animationStyle = ANIMATE_INTO_POSITION_AND_REMAIN; 3311 } 3312 animateWidgetDrop(info, cellLayout, d.dragView, onAnimationCompleteRunnable, 3313 animationStyle, finalView, true); 3314 } else { 3315 // This is for other drag/drop cases, like dragging from All Apps 3316 View view = null; 3317 3318 switch (info.itemType) { 3319 case LauncherSettings.Favorites.ITEM_TYPE_APPLICATION: 3320 case LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT: 3321 if (info.container == NO_ID && info instanceof AppInfo) { 3322 // Came from all apps -- make a copy 3323 info = new ShortcutInfo((AppInfo) info); 3324 } 3325 view = mLauncher.createShortcut(R.layout.application, cellLayout, 3326 (ShortcutInfo) info); 3327 break; 3328 case LauncherSettings.Favorites.ITEM_TYPE_FOLDER: 3329 view = FolderIcon.fromXml(R.layout.folder_icon, mLauncher, cellLayout, 3330 (FolderInfo) info, mIconCache); 3331 break; 3332 default: 3333 throw new IllegalStateException("Unknown item type: " + info.itemType); 3334 } 3335 3336 // First we find the cell nearest to point at which the item is 3337 // dropped, without any consideration to whether there is an item there. 3338 if (touchXY != null) { 3339 mTargetCell = findNearestArea((int) touchXY[0], (int) touchXY[1], spanX, spanY, 3340 cellLayout, mTargetCell); 3341 float distance = cellLayout.getDistanceFromCell(mDragViewVisualCenter[0], 3342 mDragViewVisualCenter[1], mTargetCell); 3343 d.postAnimationRunnable = exitSpringLoadedRunnable; 3344 if (createUserFolderIfNecessary(view, container, cellLayout, mTargetCell, distance, 3345 true, d.dragView, d.postAnimationRunnable)) { 3346 return; 3347 } 3348 if (addToExistingFolderIfNecessary(view, cellLayout, mTargetCell, distance, d, 3349 true)) { 3350 return; 3351 } 3352 } 3353 3354 if (touchXY != null) { 3355 // when dragging and dropping, just find the closest free spot 3356 mTargetCell = cellLayout.createArea((int) mDragViewVisualCenter[0], 3357 (int) mDragViewVisualCenter[1], 1, 1, 1, 1, 3358 null, mTargetCell, null, CellLayout.MODE_ON_DROP_EXTERNAL); 3359 } else { 3360 cellLayout.findCellForSpan(mTargetCell, 1, 1); 3361 } 3362 addInScreen(view, container, screenId, mTargetCell[0], mTargetCell[1], info.spanX, 3363 info.spanY, insertAtFirst); 3364 cellLayout.onDropChild(view); 3365 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) view.getLayoutParams(); 3366 cellLayout.getShortcutsAndWidgets().measureChild(view); 3367 3368 LauncherModel.addOrMoveItemInDatabase(mLauncher, info, container, screenId, 3369 lp.cellX, lp.cellY); 3370 3371 if (d.dragView != null) { 3372 // We wrap the animation call in the temporary set and reset of the current 3373 // cellLayout to its final transform -- this means we animate the drag view to 3374 // the correct final location. 3375 setFinalTransitionTransform(cellLayout); 3376 mLauncher.getDragLayer().animateViewIntoPosition(d.dragView, view, 3377 exitSpringLoadedRunnable); 3378 resetTransitionTransform(cellLayout); 3379 } 3380 } 3381 } 3382 3383 public Bitmap createWidgetBitmap(ItemInfo widgetInfo, View layout) { 3384 int[] unScaledSize = mLauncher.getWorkspace().estimateItemSize(widgetInfo.spanX, 3385 widgetInfo.spanY, widgetInfo, false); 3386 int visibility = layout.getVisibility(); 3387 layout.setVisibility(VISIBLE); 3388 3389 int width = MeasureSpec.makeMeasureSpec(unScaledSize[0], MeasureSpec.EXACTLY); 3390 int height = MeasureSpec.makeMeasureSpec(unScaledSize[1], MeasureSpec.EXACTLY); 3391 Bitmap b = Bitmap.createBitmap(unScaledSize[0], unScaledSize[1], 3392 Bitmap.Config.ARGB_8888); 3393 Canvas c = new Canvas(b); 3394 3395 layout.measure(width, height); 3396 layout.layout(0, 0, unScaledSize[0], unScaledSize[1]); 3397 layout.draw(c); 3398 c.setBitmap(null); 3399 layout.setVisibility(visibility); 3400 return b; 3401 } 3402 3403 private void getFinalPositionForDropAnimation(int[] loc, float[] scaleXY, 3404 DragView dragView, CellLayout layout, ItemInfo info, int[] targetCell, 3405 boolean external, boolean scale) { 3406 // Now we animate the dragView, (ie. the widget or shortcut preview) into its final 3407 // location and size on the home screen. 3408 int spanX = info.spanX; 3409 int spanY = info.spanY; 3410 3411 Rect r = estimateItemPosition(layout, info, targetCell[0], targetCell[1], spanX, spanY); 3412 loc[0] = r.left; 3413 loc[1] = r.top; 3414 3415 setFinalTransitionTransform(layout); 3416 float cellLayoutScale = 3417 mLauncher.getDragLayer().getDescendantCoordRelativeToSelf(layout, loc, true); 3418 resetTransitionTransform(layout); 3419 3420 float dragViewScaleX; 3421 float dragViewScaleY; 3422 if (scale) { 3423 dragViewScaleX = (1.0f * r.width()) / dragView.getMeasuredWidth(); 3424 dragViewScaleY = (1.0f * r.height()) / dragView.getMeasuredHeight(); 3425 } else { 3426 dragViewScaleX = 1f; 3427 dragViewScaleY = 1f; 3428 } 3429 3430 // The animation will scale the dragView about its center, so we need to center about 3431 // the final location. 3432 loc[0] -= (dragView.getMeasuredWidth() - cellLayoutScale * r.width()) / 2; 3433 loc[1] -= (dragView.getMeasuredHeight() - cellLayoutScale * r.height()) / 2; 3434 3435 scaleXY[0] = dragViewScaleX * cellLayoutScale; 3436 scaleXY[1] = dragViewScaleY * cellLayoutScale; 3437 } 3438 3439 public void animateWidgetDrop(ItemInfo info, CellLayout cellLayout, DragView dragView, 3440 final Runnable onCompleteRunnable, int animationType, final View finalView, 3441 boolean external) { 3442 Rect from = new Rect(); 3443 mLauncher.getDragLayer().getViewRectRelativeToSelf(dragView, from); 3444 3445 int[] finalPos = new int[2]; 3446 float scaleXY[] = new float[2]; 3447 boolean scalePreview = !(info instanceof PendingAddShortcutInfo); 3448 getFinalPositionForDropAnimation(finalPos, scaleXY, dragView, cellLayout, info, mTargetCell, 3449 external, scalePreview); 3450 3451 Resources res = mLauncher.getResources(); 3452 int duration = res.getInteger(R.integer.config_dropAnimMaxDuration) - 200; 3453 3454 // In the case where we've prebound the widget, we remove it from the DragLayer 3455 if (finalView instanceof AppWidgetHostView && external) { 3456 Log.d(TAG, "6557954 Animate widget drop, final view is appWidgetHostView"); 3457 mLauncher.getDragLayer().removeView(finalView); 3458 } 3459 if ((animationType == ANIMATE_INTO_POSITION_AND_RESIZE || external) && finalView != null) { 3460 Bitmap crossFadeBitmap = createWidgetBitmap(info, finalView); 3461 dragView.setCrossFadeBitmap(crossFadeBitmap); 3462 dragView.crossFade((int) (duration * 0.8f)); 3463 } else if (info.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET && external) { 3464 scaleXY[0] = scaleXY[1] = Math.min(scaleXY[0], scaleXY[1]); 3465 } 3466 3467 DragLayer dragLayer = mLauncher.getDragLayer(); 3468 if (animationType == CANCEL_TWO_STAGE_WIDGET_DROP_ANIMATION) { 3469 mLauncher.getDragLayer().animateViewIntoPosition(dragView, finalPos, 0f, 0.1f, 0.1f, 3470 DragLayer.ANIMATION_END_DISAPPEAR, onCompleteRunnable, duration); 3471 } else { 3472 int endStyle; 3473 if (animationType == ANIMATE_INTO_POSITION_AND_REMAIN) { 3474 endStyle = DragLayer.ANIMATION_END_REMAIN_VISIBLE; 3475 } else { 3476 endStyle = DragLayer.ANIMATION_END_DISAPPEAR;; 3477 } 3478 3479 Runnable onComplete = new Runnable() { 3480 @Override 3481 public void run() { 3482 if (finalView != null) { 3483 finalView.setVisibility(VISIBLE); 3484 } 3485 if (onCompleteRunnable != null) { 3486 onCompleteRunnable.run(); 3487 } 3488 } 3489 }; 3490 dragLayer.animateViewIntoPosition(dragView, from.left, from.top, finalPos[0], 3491 finalPos[1], 1, 1, 1, scaleXY[0], scaleXY[1], onComplete, endStyle, 3492 duration, this); 3493 } 3494 } 3495 3496 public void setFinalTransitionTransform(CellLayout layout) { 3497 if (isSwitchingState()) { 3498 mCurrentScale = getScaleX(); 3499 setScaleX(mNewScale); 3500 setScaleY(mNewScale); 3501 } 3502 } 3503 public void resetTransitionTransform(CellLayout layout) { 3504 if (isSwitchingState()) { 3505 setScaleX(mCurrentScale); 3506 setScaleY(mCurrentScale); 3507 } 3508 } 3509 3510 /** 3511 * Return the current {@link CellLayout}, correctly picking the destination 3512 * screen while a scroll is in progress. 3513 */ 3514 public CellLayout getCurrentDropLayout() { 3515 return (CellLayout) getChildAt(getNextPage()); 3516 } 3517 3518 /** 3519 * Return the current CellInfo describing our current drag; this method exists 3520 * so that Launcher can sync this object with the correct info when the activity is created/ 3521 * destroyed 3522 * 3523 */ 3524 public CellLayout.CellInfo getDragInfo() { 3525 return mDragInfo; 3526 } 3527 3528 /** 3529 * Calculate the nearest cell where the given object would be dropped. 3530 * 3531 * pixelX and pixelY should be in the coordinate system of layout 3532 */ 3533 private int[] findNearestArea(int pixelX, int pixelY, 3534 int spanX, int spanY, CellLayout layout, int[] recycle) { 3535 return layout.findNearestArea( 3536 pixelX, pixelY, spanX, spanY, recycle); 3537 } 3538 3539 void setup(DragController dragController) { 3540 mSpringLoadedDragController = new SpringLoadedDragController(mLauncher); 3541 mDragController = dragController; 3542 3543 // hardware layers on children are enabled on startup, but should be disabled until 3544 // needed 3545 updateChildrenLayersEnabled(false); 3546 setWallpaperDimension(); 3547 } 3548 3549 /** 3550 * Called at the end of a drag which originated on the workspace. 3551 */ 3552 public void onDropCompleted(final View target, final DragObject d, 3553 final boolean isFlingToDelete, final boolean success) { 3554 if (mDeferDropAfterUninstall) { 3555 mDeferredAction = new Runnable() { 3556 public void run() { 3557 onDropCompleted(target, d, isFlingToDelete, success); 3558 mDeferredAction = null; 3559 } 3560 }; 3561 return; 3562 } 3563 3564 boolean beingCalledAfterUninstall = mDeferredAction != null; 3565 3566 if (success && !(beingCalledAfterUninstall && !mUninstallSuccessful)) { 3567 if (target != this && mDragInfo != null) { 3568 CellLayout parentCell = getParentCellLayoutForView(mDragInfo.cell); 3569 if (parentCell != null) { 3570 parentCell.removeView(mDragInfo.cell); 3571 } 3572 if (mDragInfo.cell instanceof DropTarget) { 3573 mDragController.removeDropTarget((DropTarget) mDragInfo.cell); 3574 } 3575 // If we move the item to anything not on the Workspace, check if any empty 3576 // screens need to be removed. If we dropped back on the workspace, this will 3577 // be done post drop animation. 3578 stripEmptyScreens(); 3579 } 3580 } else if (mDragInfo != null) { 3581 CellLayout cellLayout; 3582 if (mLauncher.isHotseatLayout(target)) { 3583 cellLayout = mLauncher.getHotseat().getLayout(); 3584 } else { 3585 cellLayout = getScreenWithId(mDragInfo.screenId); 3586 } 3587 cellLayout.onDropChild(mDragInfo.cell); 3588 } 3589 if ((d.cancelled || (beingCalledAfterUninstall && !mUninstallSuccessful)) 3590 && mDragInfo.cell != null) { 3591 mDragInfo.cell.setVisibility(VISIBLE); 3592 } 3593 mDragOutline = null; 3594 mDragInfo = null; 3595 } 3596 3597 public void deferCompleteDropAfterUninstallActivity() { 3598 mDeferDropAfterUninstall = true; 3599 } 3600 3601 /// maybe move this into a smaller part 3602 public void onUninstallActivityReturned(boolean success) { 3603 mDeferDropAfterUninstall = false; 3604 mUninstallSuccessful = success; 3605 if (mDeferredAction != null) { 3606 mDeferredAction.run(); 3607 } 3608 } 3609 3610 void updateItemLocationsInDatabase(CellLayout cl) { 3611 int count = cl.getShortcutsAndWidgets().getChildCount(); 3612 3613 long screenId = getIdForScreen(cl); 3614 int container = Favorites.CONTAINER_DESKTOP; 3615 3616 if (mLauncher.isHotseatLayout(cl)) { 3617 screenId = -1; 3618 container = Favorites.CONTAINER_HOTSEAT; 3619 } 3620 3621 for (int i = 0; i < count; i++) { 3622 View v = cl.getShortcutsAndWidgets().getChildAt(i); 3623 ItemInfo info = (ItemInfo) v.getTag(); 3624 // Null check required as the AllApps button doesn't have an item info 3625 if (info != null && info.requiresDbUpdate) { 3626 info.requiresDbUpdate = false; 3627 LauncherModel.modifyItemInDatabase(mLauncher, info, container, screenId, info.cellX, 3628 info.cellY, info.spanX, info.spanY); 3629 } 3630 } 3631 } 3632 3633 ArrayList<ComponentName> getUniqueComponents(boolean stripDuplicates, ArrayList<ComponentName> duplicates) { 3634 ArrayList<ComponentName> uniqueIntents = new ArrayList<ComponentName>(); 3635 getUniqueIntents((CellLayout) mLauncher.getHotseat().getLayout(), uniqueIntents, duplicates, false); 3636 int count = getChildCount(); 3637 for (int i = 0; i < count; i++) { 3638 CellLayout cl = (CellLayout) getChildAt(i); 3639 getUniqueIntents(cl, uniqueIntents, duplicates, false); 3640 } 3641 return uniqueIntents; 3642 } 3643 3644 void getUniqueIntents(CellLayout cl, ArrayList<ComponentName> uniqueIntents, 3645 ArrayList<ComponentName> duplicates, boolean stripDuplicates) { 3646 int count = cl.getShortcutsAndWidgets().getChildCount(); 3647 3648 ArrayList<View> children = new ArrayList<View>(); 3649 for (int i = 0; i < count; i++) { 3650 View v = cl.getShortcutsAndWidgets().getChildAt(i); 3651 children.add(v); 3652 } 3653 3654 for (int i = 0; i < count; i++) { 3655 View v = children.get(i); 3656 ItemInfo info = (ItemInfo) v.getTag(); 3657 // Null check required as the AllApps button doesn't have an item info 3658 if (info instanceof ShortcutInfo) { 3659 ShortcutInfo si = (ShortcutInfo) info; 3660 ComponentName cn = si.intent.getComponent(); 3661 3662 Uri dataUri = si.intent.getData(); 3663 // If dataUri is not null / empty or if this component isn't one that would 3664 // have previously showed up in the AllApps list, then this is a widget-type 3665 // shortcut, so ignore it. 3666 if (dataUri != null && !dataUri.equals(Uri.EMPTY)) { 3667 continue; 3668 } 3669 3670 if (!uniqueIntents.contains(cn)) { 3671 uniqueIntents.add(cn); 3672 } else { 3673 if (stripDuplicates) { 3674 cl.removeViewInLayout(v); 3675 LauncherModel.deleteItemFromDatabase(mLauncher, si); 3676 } 3677 if (duplicates != null) { 3678 duplicates.add(cn); 3679 } 3680 } 3681 } 3682 if (v instanceof FolderIcon) { 3683 FolderIcon fi = (FolderIcon) v; 3684 ArrayList<View> items = fi.getFolder().getItemsInReadingOrder(); 3685 for (int j = 0; j < items.size(); j++) { 3686 if (items.get(j).getTag() instanceof ShortcutInfo) { 3687 ShortcutInfo si = (ShortcutInfo) items.get(j).getTag(); 3688 ComponentName cn = si.intent.getComponent(); 3689 3690 Uri dataUri = si.intent.getData(); 3691 // If dataUri is not null / empty or if this component isn't one that would 3692 // have previously showed up in the AllApps list, then this is a widget-type 3693 // shortcut, so ignore it. 3694 if (dataUri != null && !dataUri.equals(Uri.EMPTY)) { 3695 continue; 3696 } 3697 3698 if (!uniqueIntents.contains(cn)) { 3699 uniqueIntents.add(cn); 3700 } else { 3701 if (stripDuplicates) { 3702 fi.getFolderInfo().remove(si); 3703 LauncherModel.deleteItemFromDatabase(mLauncher, si); 3704 } 3705 if (duplicates != null) { 3706 duplicates.add(cn); 3707 } 3708 } 3709 } 3710 } 3711 } 3712 } 3713 } 3714 3715 void saveWorkspaceToDb() { 3716 saveWorkspaceScreenToDb((CellLayout) mLauncher.getHotseat().getLayout()); 3717 int count = getChildCount(); 3718 for (int i = 0; i < count; i++) { 3719 CellLayout cl = (CellLayout) getChildAt(i); 3720 saveWorkspaceScreenToDb(cl); 3721 } 3722 } 3723 3724 void saveWorkspaceScreenToDb(CellLayout cl) { 3725 int count = cl.getShortcutsAndWidgets().getChildCount(); 3726 3727 long screenId = getIdForScreen(cl); 3728 int container = Favorites.CONTAINER_DESKTOP; 3729 3730 Hotseat hotseat = mLauncher.getHotseat(); 3731 if (mLauncher.isHotseatLayout(cl)) { 3732 screenId = -1; 3733 container = Favorites.CONTAINER_HOTSEAT; 3734 } 3735 3736 for (int i = 0; i < count; i++) { 3737 View v = cl.getShortcutsAndWidgets().getChildAt(i); 3738 ItemInfo info = (ItemInfo) v.getTag(); 3739 // Null check required as the AllApps button doesn't have an item info 3740 if (info != null) { 3741 int cellX = info.cellX; 3742 int cellY = info.cellY; 3743 if (container == Favorites.CONTAINER_HOTSEAT) { 3744 cellX = hotseat.getCellXFromOrder((int) info.screenId); 3745 cellY = hotseat.getCellYFromOrder((int) info.screenId); 3746 } 3747 LauncherModel.addItemToDatabase(mLauncher, info, container, screenId, cellX, 3748 cellY, false); 3749 } 3750 if (v instanceof FolderIcon) { 3751 FolderIcon fi = (FolderIcon) v; 3752 fi.getFolder().addItemLocationsInDatabase(); 3753 } 3754 } 3755 } 3756 3757 @Override 3758 public boolean supportsFlingToDelete() { 3759 return true; 3760 } 3761 3762 @Override 3763 public void onFlingToDelete(DragObject d, int x, int y, PointF vec) { 3764 // Do nothing 3765 } 3766 3767 @Override 3768 public void onFlingToDeleteCompleted() { 3769 // Do nothing 3770 } 3771 3772 public boolean isDropEnabled() { 3773 return true; 3774 } 3775 3776 @Override 3777 protected void onRestoreInstanceState(Parcelable state) { 3778 super.onRestoreInstanceState(state); 3779 Launcher.setScreen(mCurrentPage); 3780 } 3781 3782 @Override 3783 protected void dispatchRestoreInstanceState(SparseArray<Parcelable> container) { 3784 // We don't dispatch restoreInstanceState to our children using this code path. 3785 // Some pages will be restored immediately as their items are bound immediately, and 3786 // others we will need to wait until after their items are bound. 3787 mSavedStates = container; 3788 } 3789 3790 public void restoreInstanceStateForChild(int child) { 3791 if (mSavedStates != null) { 3792 mRestoredPages.add(child); 3793 CellLayout cl = (CellLayout) getChildAt(child); 3794 cl.restoreInstanceState(mSavedStates); 3795 } 3796 } 3797 3798 public void restoreInstanceStateForRemainingPages() { 3799 int count = getChildCount(); 3800 for (int i = 0; i < count; i++) { 3801 if (!mRestoredPages.contains(i)) { 3802 restoreInstanceStateForChild(i); 3803 } 3804 } 3805 mRestoredPages.clear(); 3806 } 3807 3808 @Override 3809 public void scrollLeft() { 3810 if (!isSmall() && !mIsSwitchingState) { 3811 super.scrollLeft(); 3812 } 3813 Folder openFolder = getOpenFolder(); 3814 if (openFolder != null) { 3815 openFolder.completeDragExit(); 3816 } 3817 } 3818 3819 @Override 3820 public void scrollRight() { 3821 if (!isSmall() && !mIsSwitchingState) { 3822 super.scrollRight(); 3823 } 3824 Folder openFolder = getOpenFolder(); 3825 if (openFolder != null) { 3826 openFolder.completeDragExit(); 3827 } 3828 } 3829 3830 @Override 3831 public boolean onEnterScrollArea(int x, int y, int direction) { 3832 // Ignore the scroll area if we are dragging over the hot seat 3833 boolean isPortrait = !LauncherAppState.isScreenLandscape(getContext()); 3834 if (mLauncher.getHotseat() != null && isPortrait) { 3835 Rect r = new Rect(); 3836 mLauncher.getHotseat().getHitRect(r); 3837 if (r.contains(x, y)) { 3838 return false; 3839 } 3840 } 3841 3842 boolean result = false; 3843 if (!isSmall() && !mIsSwitchingState && getOpenFolder() == null) { 3844 mInScrollArea = true; 3845 3846 final int page = getNextPage() + 3847 (direction == DragController.SCROLL_LEFT ? -1 : 1); 3848 // We always want to exit the current layout to ensure parity of enter / exit 3849 setCurrentDropLayout(null); 3850 3851 if (0 <= page && page < getChildCount()) { 3852 // Ensure that we are not dragging over to the custom content screen 3853 if (getScreenIdForPageIndex(page) == CUSTOM_CONTENT_SCREEN_ID) { 3854 return false; 3855 } 3856 3857 CellLayout layout = (CellLayout) getChildAt(page); 3858 setCurrentDragOverlappingLayout(layout); 3859 3860 // Workspace is responsible for drawing the edge glow on adjacent pages, 3861 // so we need to redraw the workspace when this may have changed. 3862 invalidate(); 3863 result = true; 3864 } 3865 } 3866 return result; 3867 } 3868 3869 @Override 3870 public boolean onExitScrollArea() { 3871 boolean result = false; 3872 if (mInScrollArea) { 3873 invalidate(); 3874 CellLayout layout = getCurrentDropLayout(); 3875 setCurrentDropLayout(layout); 3876 setCurrentDragOverlappingLayout(layout); 3877 3878 result = true; 3879 mInScrollArea = false; 3880 } 3881 return result; 3882 } 3883 3884 private void onResetScrollArea() { 3885 setCurrentDragOverlappingLayout(null); 3886 mInScrollArea = false; 3887 } 3888 3889 /** 3890 * Returns a specific CellLayout 3891 */ 3892 CellLayout getParentCellLayoutForView(View v) { 3893 ArrayList<CellLayout> layouts = getWorkspaceAndHotseatCellLayouts(); 3894 for (CellLayout layout : layouts) { 3895 if (layout.getShortcutsAndWidgets().indexOfChild(v) > -1) { 3896 return layout; 3897 } 3898 } 3899 return null; 3900 } 3901 3902 /** 3903 * Returns a list of all the CellLayouts in the workspace. 3904 */ 3905 ArrayList<CellLayout> getWorkspaceAndHotseatCellLayouts() { 3906 ArrayList<CellLayout> layouts = new ArrayList<CellLayout>(); 3907 int screenCount = getChildCount(); 3908 for (int screen = 0; screen < screenCount; screen++) { 3909 layouts.add(((CellLayout) getChildAt(screen))); 3910 } 3911 if (mLauncher.getHotseat() != null) { 3912 layouts.add(mLauncher.getHotseat().getLayout()); 3913 } 3914 return layouts; 3915 } 3916 3917 /** 3918 * We should only use this to search for specific children. Do not use this method to modify 3919 * ShortcutsAndWidgetsContainer directly. Includes ShortcutAndWidgetContainers from 3920 * the hotseat and workspace pages 3921 */ 3922 ArrayList<ShortcutAndWidgetContainer> getAllShortcutAndWidgetContainers() { 3923 ArrayList<ShortcutAndWidgetContainer> childrenLayouts = 3924 new ArrayList<ShortcutAndWidgetContainer>(); 3925 int screenCount = getChildCount(); 3926 for (int screen = 0; screen < screenCount; screen++) { 3927 childrenLayouts.add(((CellLayout) getChildAt(screen)).getShortcutsAndWidgets()); 3928 } 3929 if (mLauncher.getHotseat() != null) { 3930 childrenLayouts.add(mLauncher.getHotseat().getLayout().getShortcutsAndWidgets()); 3931 } 3932 return childrenLayouts; 3933 } 3934 3935 public Folder getFolderForTag(Object tag) { 3936 ArrayList<ShortcutAndWidgetContainer> childrenLayouts = 3937 getAllShortcutAndWidgetContainers(); 3938 for (ShortcutAndWidgetContainer layout: childrenLayouts) { 3939 int count = layout.getChildCount(); 3940 for (int i = 0; i < count; i++) { 3941 View child = layout.getChildAt(i); 3942 if (child instanceof Folder) { 3943 Folder f = (Folder) child; 3944 if (f.getInfo() == tag && f.getInfo().opened) { 3945 return f; 3946 } 3947 } 3948 } 3949 } 3950 return null; 3951 } 3952 3953 public View getViewForTag(Object tag) { 3954 ArrayList<ShortcutAndWidgetContainer> childrenLayouts = 3955 getAllShortcutAndWidgetContainers(); 3956 for (ShortcutAndWidgetContainer layout: childrenLayouts) { 3957 int count = layout.getChildCount(); 3958 for (int i = 0; i < count; i++) { 3959 View child = layout.getChildAt(i); 3960 if (child.getTag() == tag) { 3961 return child; 3962 } 3963 } 3964 } 3965 return null; 3966 } 3967 3968 void clearDropTargets() { 3969 ArrayList<ShortcutAndWidgetContainer> childrenLayouts = 3970 getAllShortcutAndWidgetContainers(); 3971 for (ShortcutAndWidgetContainer layout: childrenLayouts) { 3972 int childCount = layout.getChildCount(); 3973 for (int j = 0; j < childCount; j++) { 3974 View v = layout.getChildAt(j); 3975 if (v instanceof DropTarget) { 3976 mDragController.removeDropTarget((DropTarget) v); 3977 } 3978 } 3979 } 3980 } 3981 3982 // Removes ALL items that match a given package name, this is usually called when a package 3983 // has been removed and we want to remove all components (widgets, shortcuts, apps) that 3984 // belong to that package. 3985 void removeItemsByPackageName(final ArrayList<String> packages) { 3986 final HashSet<String> packageNames = new HashSet<String>(); 3987 packageNames.addAll(packages); 3988 3989 // Filter out all the ItemInfos that this is going to affect 3990 final HashSet<ItemInfo> infos = new HashSet<ItemInfo>(); 3991 final HashSet<ComponentName> cns = new HashSet<ComponentName>(); 3992 ArrayList<CellLayout> cellLayouts = getWorkspaceAndHotseatCellLayouts(); 3993 for (CellLayout layoutParent : cellLayouts) { 3994 ViewGroup layout = layoutParent.getShortcutsAndWidgets(); 3995 int childCount = layout.getChildCount(); 3996 for (int i = 0; i < childCount; ++i) { 3997 View view = layout.getChildAt(i); 3998 infos.add((ItemInfo) view.getTag()); 3999 } 4000 } 4001 LauncherModel.ItemInfoFilter filter = new LauncherModel.ItemInfoFilter() { 4002 @Override 4003 public boolean filterItem(ItemInfo parent, ItemInfo info, 4004 ComponentName cn) { 4005 if (packageNames.contains(cn.getPackageName())) { 4006 cns.add(cn); 4007 return true; 4008 } 4009 return false; 4010 } 4011 }; 4012 LauncherModel.filterItemInfos(infos, filter); 4013 4014 // Remove the affected components 4015 removeItemsByComponentName(cns); 4016 } 4017 4018 // Removes items that match the application info specified, when applications are removed 4019 // as a part of an update, this is called to ensure that other widgets and application 4020 // shortcuts are not removed. 4021 void removeItemsByApplicationInfo(final ArrayList<AppInfo> appInfos) { 4022 // Just create a hash table of all the specific components that this will affect 4023 HashSet<ComponentName> cns = new HashSet<ComponentName>(); 4024 for (AppInfo info : appInfos) { 4025 cns.add(info.componentName); 4026 } 4027 4028 // Remove all the things 4029 removeItemsByComponentName(cns); 4030 } 4031 4032 void removeItemsByComponentName(final HashSet<ComponentName> componentNames) { 4033 ArrayList<CellLayout> cellLayouts = getWorkspaceAndHotseatCellLayouts(); 4034 for (final CellLayout layoutParent: cellLayouts) { 4035 final ViewGroup layout = layoutParent.getShortcutsAndWidgets(); 4036 4037 final HashMap<ItemInfo, View> children = new HashMap<ItemInfo, View>(); 4038 for (int j = 0; j < layout.getChildCount(); j++) { 4039 final View view = layout.getChildAt(j); 4040 children.put((ItemInfo) view.getTag(), view); 4041 } 4042 4043 final ArrayList<View> childrenToRemove = new ArrayList<View>(); 4044 final HashMap<FolderInfo, ArrayList<ShortcutInfo>> folderAppsToRemove = 4045 new HashMap<FolderInfo, ArrayList<ShortcutInfo>>(); 4046 LauncherModel.ItemInfoFilter filter = new LauncherModel.ItemInfoFilter() { 4047 @Override 4048 public boolean filterItem(ItemInfo parent, ItemInfo info, 4049 ComponentName cn) { 4050 if (parent instanceof FolderInfo) { 4051 if (componentNames.contains(cn)) { 4052 FolderInfo folder = (FolderInfo) parent; 4053 ArrayList<ShortcutInfo> appsToRemove; 4054 if (folderAppsToRemove.containsKey(folder)) { 4055 appsToRemove = folderAppsToRemove.get(folder); 4056 } else { 4057 appsToRemove = new ArrayList<ShortcutInfo>(); 4058 folderAppsToRemove.put(folder, appsToRemove); 4059 } 4060 appsToRemove.add((ShortcutInfo) info); 4061 return true; 4062 } 4063 } else { 4064 if (componentNames.contains(cn)) { 4065 childrenToRemove.add(children.get(info)); 4066 return true; 4067 } 4068 } 4069 return false; 4070 } 4071 }; 4072 LauncherModel.filterItemInfos(children.keySet(), filter); 4073 4074 // Remove all the apps from their folders 4075 for (FolderInfo folder : folderAppsToRemove.keySet()) { 4076 ArrayList<ShortcutInfo> appsToRemove = folderAppsToRemove.get(folder); 4077 for (ShortcutInfo info : appsToRemove) { 4078 folder.remove(info); 4079 } 4080 } 4081 4082 // Remove all the other children 4083 for (View child : childrenToRemove) { 4084 // Note: We can not remove the view directly from CellLayoutChildren as this 4085 // does not re-mark the spaces as unoccupied. 4086 layoutParent.removeViewInLayout(child); 4087 if (child instanceof DropTarget) { 4088 mDragController.removeDropTarget((DropTarget) child); 4089 } 4090 } 4091 4092 if (childrenToRemove.size() > 0) { 4093 layout.requestLayout(); 4094 layout.invalidate(); 4095 } 4096 } 4097 4098 // Strip all the empty screens 4099 stripEmptyScreens(); 4100 } 4101 4102 void updateShortcuts(ArrayList<AppInfo> apps) { 4103 ArrayList<ShortcutAndWidgetContainer> childrenLayouts = getAllShortcutAndWidgetContainers(); 4104 for (ShortcutAndWidgetContainer layout: childrenLayouts) { 4105 int childCount = layout.getChildCount(); 4106 for (int j = 0; j < childCount; j++) { 4107 final View view = layout.getChildAt(j); 4108 Object tag = view.getTag(); 4109 4110 if (LauncherModel.isShortcutInfoUpdateable((ItemInfo) tag)) { 4111 ShortcutInfo info = (ShortcutInfo) tag; 4112 4113 final Intent intent = info.intent; 4114 final ComponentName name = intent.getComponent(); 4115 final int appCount = apps.size(); 4116 for (int k = 0; k < appCount; k++) { 4117 AppInfo app = apps.get(k); 4118 if (app.componentName.equals(name)) { 4119 BubbleTextView shortcut = (BubbleTextView) view; 4120 info.updateIcon(mIconCache); 4121 info.title = app.title.toString(); 4122 shortcut.applyFromShortcutInfo(info, mIconCache); 4123 } 4124 } 4125 } 4126 } 4127 } 4128 } 4129 4130 void moveToDefaultScreen(boolean animate) { 4131 if (!isSmall()) { 4132 if (animate) { 4133 snapToPage(mDefaultPage); 4134 } else { 4135 setCurrentPage(mDefaultPage); 4136 } 4137 } 4138 View child = getChildAt(mDefaultPage); 4139 if (child != null) { 4140 child.requestFocus(); 4141 } 4142 } 4143 4144 @Override 4145 protected int getPageIndicatorMarker(int pageIndex) { 4146 if (getScreenIdForPageIndex(pageIndex) == CUSTOM_CONTENT_SCREEN_ID) { 4147 return R.layout.custom_content_page_indicator_marker; 4148 } 4149 return super.getPageIndicatorMarker(pageIndex); 4150 } 4151 4152 @Override 4153 public void syncPages() { 4154 } 4155 4156 @Override 4157 public void syncPageItems(int page, boolean immediate) { 4158 } 4159 4160 protected String getCurrentPageDescription() { 4161 int page = (mNextPage != INVALID_PAGE) ? mNextPage : mCurrentPage; 4162 return String.format(getContext().getString(R.string.workspace_scroll_format), 4163 page + 1, getChildCount()); 4164 } 4165 4166 public void getLocationInDragLayer(int[] loc) { 4167 mLauncher.getDragLayer().getLocationInDragLayer(this, loc); 4168 } 4169} 4170