Workspace.java revision 93b92d0895f86fddf270b4861282b75c8e455ce3
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.Animator.AnimatorListener; 21import android.animation.AnimatorListenerAdapter; 22import android.animation.AnimatorSet; 23import android.animation.LayoutTransition; 24import android.animation.ObjectAnimator; 25import android.animation.PropertyValuesHolder; 26import android.animation.TimeInterpolator; 27import android.animation.ValueAnimator; 28import android.animation.ValueAnimator.AnimatorUpdateListener; 29import android.app.WallpaperManager; 30import android.appwidget.AppWidgetHostView; 31import android.appwidget.AppWidgetProviderInfo; 32import android.content.ComponentName; 33import android.content.Context; 34import android.content.SharedPreferences; 35import android.content.res.Resources; 36import android.content.res.TypedArray; 37import android.graphics.Bitmap; 38import android.graphics.Canvas; 39import android.graphics.Matrix; 40import android.graphics.Point; 41import android.graphics.PointF; 42import android.graphics.Rect; 43import android.graphics.Region.Op; 44import android.graphics.drawable.Drawable; 45import android.net.Uri; 46import android.os.AsyncTask; 47import android.os.IBinder; 48import android.os.Parcelable; 49import android.support.v4.view.ViewCompat; 50import android.util.AttributeSet; 51import android.util.Log; 52import android.util.SparseArray; 53import android.view.Choreographer; 54import android.view.Display; 55import android.view.MotionEvent; 56import android.view.View; 57import android.view.ViewGroup; 58import android.view.accessibility.AccessibilityManager; 59import android.view.animation.DecelerateInterpolator; 60import android.view.animation.Interpolator; 61import android.widget.TextView; 62 63import com.android.launcher3.FolderIcon.FolderRingAnimator; 64import com.android.launcher3.Launcher.CustomContentCallbacks; 65import com.android.launcher3.LauncherSettings.Favorites; 66 67import java.util.ArrayList; 68import java.util.HashMap; 69import java.util.HashSet; 70import java.util.Iterator; 71 72/** 73 * The workspace is a wide area with a wallpaper and a finite number of pages. 74 * Each page contains a number of icons, folders or widgets the user can 75 * interact with. A workspace is meant to be used with a fixed width only. 76 */ 77public class Workspace extends SmoothPagedView 78 implements DropTarget, DragSource, DragScroller, View.OnTouchListener, 79 DragController.DragListener, LauncherTransitionable, ViewGroup.OnHierarchyChangeListener, 80 Insettable { 81 private static final String TAG = "Launcher.Workspace"; 82 83 // Y rotation to apply to the workspace screens 84 private static final float WORKSPACE_OVERSCROLL_ROTATION = 24f; 85 86 private static final int CHILDREN_OUTLINE_FADE_OUT_DELAY = 0; 87 private static final int CHILDREN_OUTLINE_FADE_OUT_DURATION = 375; 88 private static final int CHILDREN_OUTLINE_FADE_IN_DURATION = 100; 89 90 protected static final int SNAP_OFF_EMPTY_SCREEN_DURATION = 400; 91 protected static final int FADE_EMPTY_SCREEN_DURATION = 150; 92 93 private static final int BACKGROUND_FADE_OUT_DURATION = 350; 94 private static final int ADJACENT_SCREEN_DROP_DURATION = 300; 95 private static final int FLING_THRESHOLD_VELOCITY = 500; 96 97 private static final float ALPHA_CUTOFF_THRESHOLD = 0.01f; 98 99 // These animators are used to fade the children's outlines 100 private ObjectAnimator mChildrenOutlineFadeInAnimation; 101 private ObjectAnimator mChildrenOutlineFadeOutAnimation; 102 private float mChildrenOutlineAlpha = 0; 103 104 // These properties refer to the background protection gradient used for AllApps and Customize 105 private ValueAnimator mBackgroundFadeInAnimation; 106 private ValueAnimator mBackgroundFadeOutAnimation; 107 private Drawable mBackground; 108 boolean mDrawBackground = true; 109 private float mBackgroundAlpha = 0; 110 111 private static final long CUSTOM_CONTENT_GESTURE_DELAY = 200; 112 private long mTouchDownTime = -1; 113 private long mCustomContentShowTime = -1; 114 115 private LayoutTransition mLayoutTransition; 116 private final WallpaperManager mWallpaperManager; 117 private IBinder mWindowToken; 118 119 private int mOriginalDefaultPage; 120 private int mDefaultPage; 121 122 private ShortcutAndWidgetContainer mDragSourceInternal; 123 private static boolean sAccessibilityEnabled; 124 125 // The screen id used for the empty screen always present to the right. 126 private final static long EXTRA_EMPTY_SCREEN_ID = -201; 127 private final static long CUSTOM_CONTENT_SCREEN_ID = -301; 128 129 private HashMap<Long, CellLayout> mWorkspaceScreens = new HashMap<Long, CellLayout>(); 130 private ArrayList<Long> mScreenOrder = new ArrayList<Long>(); 131 132 private Runnable mRemoveEmptyScreenRunnable; 133 134 /** 135 * CellInfo for the cell that is currently being dragged 136 */ 137 private CellLayout.CellInfo mDragInfo; 138 139 /** 140 * Target drop area calculated during last acceptDrop call. 141 */ 142 private int[] mTargetCell = new int[2]; 143 private int mDragOverX = -1; 144 private int mDragOverY = -1; 145 146 static Rect mLandscapeCellLayoutMetrics = null; 147 static Rect mPortraitCellLayoutMetrics = null; 148 149 CustomContentCallbacks mCustomContentCallbacks; 150 boolean mCustomContentShowing; 151 private float mLastCustomContentScrollProgress = -1f; 152 private String mCustomContentDescription = ""; 153 154 /** 155 * The CellLayout that is currently being dragged over 156 */ 157 private CellLayout mDragTargetLayout = null; 158 /** 159 * The CellLayout that we will show as glowing 160 */ 161 private CellLayout mDragOverlappingLayout = null; 162 163 /** 164 * The CellLayout which will be dropped to 165 */ 166 private CellLayout mDropToLayout = null; 167 168 private Launcher mLauncher; 169 private IconCache mIconCache; 170 private DragController mDragController; 171 172 // These are temporary variables to prevent having to allocate a new object just to 173 // return an (x, y) value from helper functions. Do NOT use them to maintain other state. 174 private int[] mTempCell = new int[2]; 175 private int[] mTempPt = new int[2]; 176 private int[] mTempEstimate = new int[2]; 177 private float[] mDragViewVisualCenter = new float[2]; 178 private float[] mTempCellLayoutCenterCoordinates = new float[2]; 179 private Matrix mTempInverseMatrix = new Matrix(); 180 181 private SpringLoadedDragController mSpringLoadedDragController; 182 private float mSpringLoadedShrinkFactor; 183 private float mOverviewModeShrinkFactor; 184 185 // State variable that indicates whether the pages are small (ie when you're 186 // in all apps or customize mode) 187 188 enum State { NORMAL, SPRING_LOADED, SMALL, OVERVIEW}; 189 private State mState = State.NORMAL; 190 private boolean mIsSwitchingState = false; 191 192 boolean mAnimatingViewIntoPlace = false; 193 boolean mIsDragOccuring = false; 194 boolean mChildrenLayersEnabled = true; 195 196 private boolean mStripScreensOnPageStopMoving = false; 197 198 /** Is the user is dragging an item near the edge of a page? */ 199 private boolean mInScrollArea = false; 200 201 private HolographicOutlineHelper mOutlineHelper; 202 private Bitmap mDragOutline = null; 203 private final Rect mTempRect = new Rect(); 204 private final int[] mTempXY = new int[2]; 205 private int[] mTempVisiblePagesRange = new int[2]; 206 private boolean mOverscrollTransformsSet; 207 private float mLastOverscrollPivotX; 208 public static final int DRAG_BITMAP_PADDING = 2; 209 private boolean mWorkspaceFadeInAdjacentScreens; 210 211 WallpaperOffsetInterpolator mWallpaperOffset; 212 private boolean mWallpaperIsLiveWallpaper; 213 private int mNumPagesForWallpaperParallax; 214 private float mLastSetWallpaperOffsetSteps = 0; 215 216 private Runnable mDelayedResizeRunnable; 217 private Runnable mDelayedSnapToPageRunnable; 218 private Point mDisplaySize = new Point(); 219 private int mCameraDistance; 220 221 // Variables relating to the creation of user folders by hovering shortcuts over shortcuts 222 private static final int FOLDER_CREATION_TIMEOUT = 0; 223 public static final int REORDER_TIMEOUT = 350; 224 private final Alarm mFolderCreationAlarm = new Alarm(); 225 private final Alarm mReorderAlarm = new Alarm(); 226 private FolderRingAnimator mDragFolderRingAnimator = null; 227 private FolderIcon mDragOverFolderIcon = null; 228 private boolean mCreateUserFolderOnDrop = false; 229 private boolean mAddToExistingFolderOnDrop = false; 230 private DropTarget.DragEnforcer mDragEnforcer; 231 private float mMaxDistanceForFolderCreation; 232 233 // Variables relating to touch disambiguation (scrolling workspace vs. scrolling a widget) 234 private float mXDown; 235 private float mYDown; 236 final static float START_DAMPING_TOUCH_SLOP_ANGLE = (float) Math.PI / 6; 237 final static float MAX_SWIPE_ANGLE = (float) Math.PI / 3; 238 final static float TOUCH_SLOP_DAMPING_FACTOR = 4; 239 240 // Relating to the animation of items being dropped externally 241 public static final int ANIMATE_INTO_POSITION_AND_DISAPPEAR = 0; 242 public static final int ANIMATE_INTO_POSITION_AND_REMAIN = 1; 243 public static final int ANIMATE_INTO_POSITION_AND_RESIZE = 2; 244 public static final int COMPLETE_TWO_STAGE_WIDGET_DROP_ANIMATION = 3; 245 public static final int CANCEL_TWO_STAGE_WIDGET_DROP_ANIMATION = 4; 246 247 // Related to dragging, folder creation and reordering 248 private static final int DRAG_MODE_NONE = 0; 249 private static final int DRAG_MODE_CREATE_FOLDER = 1; 250 private static final int DRAG_MODE_ADD_TO_FOLDER = 2; 251 private static final int DRAG_MODE_REORDER = 3; 252 private int mDragMode = DRAG_MODE_NONE; 253 private int mLastReorderX = -1; 254 private int mLastReorderY = -1; 255 256 private SparseArray<Parcelable> mSavedStates; 257 private final ArrayList<Integer> mRestoredPages = new ArrayList<Integer>(); 258 259 // These variables are used for storing the initial and final values during workspace animations 260 private int mSavedScrollX; 261 private float mSavedRotationY; 262 private float mSavedTranslationX; 263 264 private float mCurrentScale; 265 private float mNewScale; 266 private float[] mOldBackgroundAlphas; 267 private float[] mOldAlphas; 268 private float[] mNewBackgroundAlphas; 269 private float[] mNewAlphas; 270 private int mLastChildCount = -1; 271 private float mTransitionProgress; 272 273 private Runnable mDeferredAction; 274 private boolean mDeferDropAfterUninstall; 275 private boolean mUninstallSuccessful; 276 277 private final Runnable mBindPages = new Runnable() { 278 @Override 279 public void run() { 280 mLauncher.getModel().bindRemainingSynchronousPages(); 281 } 282 }; 283 284 /** 285 * Used to inflate the Workspace from XML. 286 * 287 * @param context The application's context. 288 * @param attrs The attributes set containing the Workspace's customization values. 289 */ 290 public Workspace(Context context, AttributeSet attrs) { 291 this(context, attrs, 0); 292 } 293 294 /** 295 * Used to inflate the Workspace from XML. 296 * 297 * @param context The application's context. 298 * @param attrs The attributes set containing the Workspace's customization values. 299 * @param defStyle Unused. 300 */ 301 public Workspace(Context context, AttributeSet attrs, int defStyle) { 302 super(context, attrs, defStyle); 303 mContentIsRefreshable = false; 304 305 mOutlineHelper = HolographicOutlineHelper.obtain(context); 306 307 mDragEnforcer = new DropTarget.DragEnforcer(context); 308 // With workspace, data is available straight from the get-go 309 setDataIsReady(); 310 311 mLauncher = (Launcher) context; 312 final Resources res = getResources(); 313 mWorkspaceFadeInAdjacentScreens = LauncherAppState.getInstance().getDynamicGrid(). 314 getDeviceProfile().shouldFadeAdjacentWorkspaceScreens(); 315 mFadeInAdjacentScreens = false; 316 mWallpaperManager = WallpaperManager.getInstance(context); 317 318 LauncherAppState app = LauncherAppState.getInstance(); 319 DeviceProfile grid = app.getDynamicGrid().getDeviceProfile(); 320 TypedArray a = context.obtainStyledAttributes(attrs, 321 R.styleable.Workspace, defStyle, 0); 322 mSpringLoadedShrinkFactor = 323 res.getInteger(R.integer.config_workspaceSpringLoadShrinkPercentage) / 100.0f; 324 mOverviewModeShrinkFactor = grid.getOverviewModeScale(); 325 mCameraDistance = res.getInteger(R.integer.config_cameraDistance); 326 mOriginalDefaultPage = mDefaultPage = a.getInt(R.styleable.Workspace_defaultScreen, 1); 327 a.recycle(); 328 329 setOnHierarchyChangeListener(this); 330 setHapticFeedbackEnabled(false); 331 332 initWorkspace(); 333 334 // Disable multitouch across the workspace/all apps/customize tray 335 setMotionEventSplittingEnabled(true); 336 setImportantForAccessibility(View.IMPORTANT_FOR_ACCESSIBILITY_YES); 337 } 338 339 @Override 340 public void setInsets(Rect insets) { 341 mInsets.set(insets); 342 343 CellLayout customScreen = getScreenWithId(CUSTOM_CONTENT_SCREEN_ID); 344 if (customScreen != null) { 345 View customContent = customScreen.getShortcutsAndWidgets().getChildAt(0); 346 if (customContent instanceof Insettable) { 347 ((Insettable) customContent).setInsets(mInsets); 348 } 349 } 350 } 351 352 // estimate the size of a widget with spans hSpan, vSpan. return MAX_VALUE for each 353 // dimension if unsuccessful 354 public int[] estimateItemSize(int hSpan, int vSpan, 355 ItemInfo itemInfo, boolean springLoaded) { 356 int[] size = new int[2]; 357 if (getChildCount() > 0) { 358 // Use the first non-custom page to estimate the child position 359 CellLayout cl = (CellLayout) getChildAt(numCustomPages()); 360 Rect r = estimateItemPosition(cl, itemInfo, 0, 0, hSpan, vSpan); 361 size[0] = r.width(); 362 size[1] = r.height(); 363 if (springLoaded) { 364 size[0] *= mSpringLoadedShrinkFactor; 365 size[1] *= mSpringLoadedShrinkFactor; 366 } 367 return size; 368 } else { 369 size[0] = Integer.MAX_VALUE; 370 size[1] = Integer.MAX_VALUE; 371 return size; 372 } 373 } 374 375 public Rect estimateItemPosition(CellLayout cl, ItemInfo pendingInfo, 376 int hCell, int vCell, int hSpan, int vSpan) { 377 Rect r = new Rect(); 378 cl.cellToRect(hCell, vCell, hSpan, vSpan, r); 379 return r; 380 } 381 382 public void onDragStart(final DragSource source, Object info, int dragAction) { 383 mIsDragOccuring = true; 384 updateChildrenLayersEnabled(false); 385 mLauncher.lockScreenOrientation(); 386 mLauncher.onInteractionBegin(); 387 setChildrenBackgroundAlphaMultipliers(1f); 388 // Prevent any Un/InstallShortcutReceivers from updating the db while we are dragging 389 InstallShortcutReceiver.enableInstallQueue(); 390 UninstallShortcutReceiver.enableUninstallQueue(); 391 post(new Runnable() { 392 @Override 393 public void run() { 394 if (mIsDragOccuring) { 395 addExtraEmptyScreenOnDrag(); 396 } 397 } 398 }); 399 } 400 401 public void onDragEnd() { 402 mIsDragOccuring = false; 403 updateChildrenLayersEnabled(false); 404 mLauncher.unlockScreenOrientation(false); 405 406 // Re-enable any Un/InstallShortcutReceiver and now process any queued items 407 InstallShortcutReceiver.disableAndFlushInstallQueue(getContext()); 408 UninstallShortcutReceiver.disableAndFlushUninstallQueue(getContext()); 409 410 mDragSourceInternal = null; 411 mLauncher.onInteractionEnd(); 412 } 413 414 /** 415 * Initializes various states for this workspace. 416 */ 417 protected void initWorkspace() { 418 Context context = getContext(); 419 mCurrentPage = mDefaultPage; 420 Launcher.setScreen(mCurrentPage); 421 LauncherAppState app = LauncherAppState.getInstance(); 422 DeviceProfile grid = app.getDynamicGrid().getDeviceProfile(); 423 mIconCache = app.getIconCache(); 424 setWillNotDraw(false); 425 setClipChildren(false); 426 setClipToPadding(false); 427 setChildrenDrawnWithCacheEnabled(true); 428 429 setMinScale(mOverviewModeShrinkFactor); 430 setupLayoutTransition(); 431 432 final Resources res = getResources(); 433 try { 434 mBackground = res.getDrawable(R.drawable.apps_customize_bg); 435 } catch (Resources.NotFoundException e) { 436 // In this case, we will skip drawing background protection 437 } 438 439 mWallpaperOffset = new WallpaperOffsetInterpolator(); 440 Display display = mLauncher.getWindowManager().getDefaultDisplay(); 441 display.getSize(mDisplaySize); 442 443 mMaxDistanceForFolderCreation = (0.55f * grid.iconSizePx); 444 mFlingThresholdVelocity = (int) (FLING_THRESHOLD_VELOCITY * mDensity); 445 446 // Set the wallpaper dimensions when Launcher starts up 447 setWallpaperDimension(); 448 } 449 450 private void setupLayoutTransition() { 451 // We want to show layout transitions when pages are deleted, to close the gap. 452 mLayoutTransition = new LayoutTransition(); 453 mLayoutTransition.enableTransitionType(LayoutTransition.DISAPPEARING); 454 mLayoutTransition.enableTransitionType(LayoutTransition.CHANGE_DISAPPEARING); 455 mLayoutTransition.disableTransitionType(LayoutTransition.APPEARING); 456 mLayoutTransition.disableTransitionType(LayoutTransition.CHANGE_APPEARING); 457 setLayoutTransition(mLayoutTransition); 458 } 459 460 void enableLayoutTransitions() { 461 setLayoutTransition(mLayoutTransition); 462 } 463 void disableLayoutTransitions() { 464 setLayoutTransition(null); 465 } 466 467 @Override 468 protected int getScrollMode() { 469 return SmoothPagedView.X_LARGE_MODE; 470 } 471 472 @Override 473 public void onChildViewAdded(View parent, View child) { 474 if (!(child instanceof CellLayout)) { 475 throw new IllegalArgumentException("A Workspace can only have CellLayout children."); 476 } 477 CellLayout cl = ((CellLayout) child); 478 cl.setOnInterceptTouchListener(this); 479 cl.setClickable(true); 480 cl.setImportantForAccessibility(ViewCompat.IMPORTANT_FOR_ACCESSIBILITY_NO); 481 super.onChildViewAdded(parent, child); 482 } 483 484 protected boolean shouldDrawChild(View child) { 485 final CellLayout cl = (CellLayout) child; 486 return super.shouldDrawChild(child) && 487 (mIsSwitchingState || 488 cl.getShortcutsAndWidgets().getAlpha() > 0 || 489 cl.getBackgroundAlpha() > 0); 490 } 491 492 /** 493 * @return The open folder on the current screen, or null if there is none 494 */ 495 Folder getOpenFolder() { 496 DragLayer dragLayer = mLauncher.getDragLayer(); 497 int count = dragLayer.getChildCount(); 498 for (int i = 0; i < count; i++) { 499 View child = dragLayer.getChildAt(i); 500 if (child instanceof Folder) { 501 Folder folder = (Folder) child; 502 if (folder.getInfo().opened) 503 return folder; 504 } 505 } 506 return null; 507 } 508 509 boolean isTouchActive() { 510 return mTouchState != TOUCH_STATE_REST; 511 } 512 513 public void removeAllWorkspaceScreens() { 514 // Disable all layout transitions before removing all pages to ensure that we don't get the 515 // transition animations competing with us changing the scroll when we add pages or the 516 // custom content screen 517 disableLayoutTransitions(); 518 519 // Since we increment the current page when we call addCustomContentPage via bindScreens 520 // (and other places), we need to adjust the current page back when we clear the pages 521 if (hasCustomContent()) { 522 removeCustomContentPage(); 523 } 524 525 // Remove the pages and clear the screen models 526 removeAllViews(); 527 mScreenOrder.clear(); 528 mWorkspaceScreens.clear(); 529 530 // Re-enable the layout transitions 531 enableLayoutTransitions(); 532 } 533 534 public long insertNewWorkspaceScreenBeforeEmptyScreen(long screenId) { 535 // Find the index to insert this view into. If the empty screen exists, then 536 // insert it before that. 537 int insertIndex = mScreenOrder.indexOf(EXTRA_EMPTY_SCREEN_ID); 538 if (insertIndex < 0) { 539 insertIndex = mScreenOrder.size(); 540 } 541 return insertNewWorkspaceScreen(screenId, insertIndex); 542 } 543 544 public long insertNewWorkspaceScreen(long screenId) { 545 return insertNewWorkspaceScreen(screenId, getChildCount()); 546 } 547 548 public long insertNewWorkspaceScreen(long screenId, int insertIndex) { 549 // Log to disk 550 Launcher.addDumpLog(TAG, "11683562 - insertNewWorkspaceScreen(): " + screenId + 551 " at index: " + insertIndex, true); 552 553 if (mWorkspaceScreens.containsKey(screenId)) { 554 throw new RuntimeException("Screen id " + screenId + " already exists!"); 555 } 556 557 CellLayout newScreen = (CellLayout) 558 mLauncher.getLayoutInflater().inflate(R.layout.workspace_screen, null); 559 560 newScreen.setOnLongClickListener(mLongClickListener); 561 newScreen.setOnClickListener(mLauncher); 562 newScreen.setSoundEffectsEnabled(false); 563 mWorkspaceScreens.put(screenId, newScreen); 564 mScreenOrder.add(insertIndex, screenId); 565 addView(newScreen, insertIndex); 566 return screenId; 567 } 568 569 public void createCustomContentContainer() { 570 CellLayout customScreen = (CellLayout) 571 mLauncher.getLayoutInflater().inflate(R.layout.workspace_screen, null); 572 customScreen.disableBackground(); 573 574 mWorkspaceScreens.put(CUSTOM_CONTENT_SCREEN_ID, customScreen); 575 mScreenOrder.add(0, CUSTOM_CONTENT_SCREEN_ID); 576 577 // We want no padding on the custom content 578 customScreen.setPadding(0, 0, 0, 0); 579 580 addFullScreenPage(customScreen); 581 582 // Ensure that the current page and default page are maintained. 583 mDefaultPage = mOriginalDefaultPage + 1; 584 585 // Update the custom content hint 586 mLauncher.getLauncherClings().updateCustomContentHintVisibility(); 587 if (mRestorePage != INVALID_RESTORE_PAGE) { 588 mRestorePage = mRestorePage + 1; 589 } else { 590 setCurrentPage(getCurrentPage() + 1); 591 } 592 } 593 594 public void removeCustomContentPage() { 595 CellLayout customScreen = getScreenWithId(CUSTOM_CONTENT_SCREEN_ID); 596 if (customScreen == null) { 597 throw new RuntimeException("Expected custom content screen to exist"); 598 } 599 600 mWorkspaceScreens.remove(CUSTOM_CONTENT_SCREEN_ID); 601 mScreenOrder.remove(CUSTOM_CONTENT_SCREEN_ID); 602 removeView(customScreen); 603 604 if (mCustomContentCallbacks != null) { 605 mCustomContentCallbacks.onScrollProgressChanged(0); 606 mCustomContentCallbacks.onHide(); 607 } 608 609 mCustomContentCallbacks = null; 610 611 // Ensure that the current page and default page are maintained. 612 mDefaultPage = mOriginalDefaultPage - 1; 613 614 // Update the custom content hint 615 mLauncher.getLauncherClings().updateCustomContentHintVisibility(); 616 if (mRestorePage != INVALID_RESTORE_PAGE) { 617 mRestorePage = mRestorePage - 1; 618 } else { 619 setCurrentPage(getCurrentPage() - 1); 620 } 621 } 622 623 public void addToCustomContentPage(View customContent, CustomContentCallbacks callbacks, 624 String description) { 625 if (getPageIndexForScreenId(CUSTOM_CONTENT_SCREEN_ID) < 0) { 626 throw new RuntimeException("Expected custom content screen to exist"); 627 } 628 629 // Add the custom content to the full screen custom page 630 CellLayout customScreen = getScreenWithId(CUSTOM_CONTENT_SCREEN_ID); 631 int spanX = customScreen.getCountX(); 632 int spanY = customScreen.getCountY(); 633 CellLayout.LayoutParams lp = new CellLayout.LayoutParams(0, 0, spanX, spanY); 634 lp.canReorder = false; 635 lp.isFullscreen = true; 636 if (customContent instanceof Insettable) { 637 ((Insettable)customContent).setInsets(mInsets); 638 } 639 640 // Verify that the child is removed from any existing parent. 641 if (customContent.getParent() instanceof ViewGroup) { 642 ViewGroup parent = (ViewGroup) customContent.getParent(); 643 parent.removeView(customContent); 644 } 645 customScreen.removeAllViews(); 646 customScreen.addViewToCellLayout(customContent, 0, 0, lp, true); 647 mCustomContentDescription = description; 648 649 mCustomContentCallbacks = callbacks; 650 } 651 652 public void addExtraEmptyScreenOnDrag() { 653 // Log to disk 654 Launcher.addDumpLog(TAG, "11683562 - addExtraEmptyScreenOnDrag()", true); 655 656 boolean lastChildOnScreen = false; 657 boolean childOnFinalScreen = false; 658 659 // Cancel any pending removal of empty screen 660 mRemoveEmptyScreenRunnable = null; 661 662 if (mDragSourceInternal != null) { 663 if (mDragSourceInternal.getChildCount() == 1) { 664 lastChildOnScreen = true; 665 } 666 CellLayout cl = (CellLayout) mDragSourceInternal.getParent(); 667 if (indexOfChild(cl) == getChildCount() - 1) { 668 childOnFinalScreen = true; 669 } 670 } 671 672 // If this is the last item on the final screen 673 if (lastChildOnScreen && childOnFinalScreen) { 674 return; 675 } 676 if (!mWorkspaceScreens.containsKey(EXTRA_EMPTY_SCREEN_ID)) { 677 insertNewWorkspaceScreen(EXTRA_EMPTY_SCREEN_ID); 678 } 679 } 680 681 public boolean addExtraEmptyScreen() { 682 // Log to disk 683 Launcher.addDumpLog(TAG, "11683562 - addExtraEmptyScreen()", true); 684 685 if (!mWorkspaceScreens.containsKey(EXTRA_EMPTY_SCREEN_ID)) { 686 insertNewWorkspaceScreen(EXTRA_EMPTY_SCREEN_ID); 687 return true; 688 } 689 return false; 690 } 691 692 private void convertFinalScreenToEmptyScreenIfNecessary() { 693 // Log to disk 694 Launcher.addDumpLog(TAG, "11683562 - convertFinalScreenToEmptyScreenIfNecessary()", true); 695 696 if (hasExtraEmptyScreen() || mScreenOrder.size() == 0) return; 697 long finalScreenId = mScreenOrder.get(mScreenOrder.size() - 1); 698 699 if (finalScreenId == CUSTOM_CONTENT_SCREEN_ID) return; 700 CellLayout finalScreen = mWorkspaceScreens.get(finalScreenId); 701 702 // If the final screen is empty, convert it to the extra empty screen 703 if (finalScreen.getShortcutsAndWidgets().getChildCount() == 0 && 704 !finalScreen.isDropPending()) { 705 mWorkspaceScreens.remove(finalScreenId); 706 mScreenOrder.remove(finalScreenId); 707 708 // if this is the last non-custom content screen, convert it to the empty screen 709 mWorkspaceScreens.put(EXTRA_EMPTY_SCREEN_ID, finalScreen); 710 mScreenOrder.add(EXTRA_EMPTY_SCREEN_ID); 711 712 // Update the model if we have changed any screens 713 mLauncher.getModel().updateWorkspaceScreenOrder(mLauncher, mScreenOrder); 714 Launcher.addDumpLog(TAG, "11683562 - extra empty screen: " + finalScreenId, true); 715 } 716 } 717 718 public void removeExtraEmptyScreen(final boolean animate, final Runnable onComplete) { 719 removeExtraEmptyScreen(animate, onComplete, 0, false); 720 } 721 722 public void removeExtraEmptyScreen(final boolean animate, final Runnable onComplete, 723 final int delay, final boolean stripEmptyScreens) { 724 // Log to disk 725 Launcher.addDumpLog(TAG, "11683562 - removeExtraEmptyScreen()", true); 726 if (delay > 0) { 727 postDelayed(new Runnable() { 728 @Override 729 public void run() { 730 removeExtraEmptyScreen(animate, onComplete, 0, stripEmptyScreens); 731 } 732 733 }, delay); 734 return; 735 } 736 737 convertFinalScreenToEmptyScreenIfNecessary(); 738 if (hasExtraEmptyScreen()) { 739 int emptyIndex = mScreenOrder.indexOf(EXTRA_EMPTY_SCREEN_ID); 740 if (getNextPage() == emptyIndex) { 741 snapToPage(getNextPage() - 1, SNAP_OFF_EMPTY_SCREEN_DURATION); 742 fadeAndRemoveEmptyScreen(SNAP_OFF_EMPTY_SCREEN_DURATION, FADE_EMPTY_SCREEN_DURATION, 743 onComplete, stripEmptyScreens); 744 } else { 745 fadeAndRemoveEmptyScreen(0, FADE_EMPTY_SCREEN_DURATION, 746 onComplete, stripEmptyScreens); 747 } 748 return; 749 } else if (stripEmptyScreens) { 750 // If we're not going to strip the empty screens after removing 751 // the extra empty screen, do it right away. 752 stripEmptyScreens(); 753 } 754 755 if (onComplete != null) { 756 onComplete.run(); 757 } 758 } 759 760 private void fadeAndRemoveEmptyScreen(int delay, int duration, final Runnable onComplete, 761 final boolean stripEmptyScreens) { 762 // Log to disk 763 // XXX: Do we need to update LM workspace screens below? 764 Launcher.addDumpLog(TAG, "11683562 - fadeAndRemoveEmptyScreen()", true); 765 PropertyValuesHolder alpha = PropertyValuesHolder.ofFloat("alpha", 0f); 766 PropertyValuesHolder bgAlpha = PropertyValuesHolder.ofFloat("backgroundAlpha", 0f); 767 768 final CellLayout cl = mWorkspaceScreens.get(EXTRA_EMPTY_SCREEN_ID); 769 770 mRemoveEmptyScreenRunnable = new Runnable() { 771 @Override 772 public void run() { 773 if (hasExtraEmptyScreen()) { 774 mWorkspaceScreens.remove(EXTRA_EMPTY_SCREEN_ID); 775 mScreenOrder.remove(EXTRA_EMPTY_SCREEN_ID); 776 removeView(cl); 777 if (stripEmptyScreens) { 778 stripEmptyScreens(); 779 } 780 } 781 } 782 }; 783 784 ObjectAnimator oa = ObjectAnimator.ofPropertyValuesHolder(cl, alpha, bgAlpha); 785 oa.setDuration(duration); 786 oa.setStartDelay(delay); 787 oa.addListener(new AnimatorListenerAdapter() { 788 @Override 789 public void onAnimationEnd(Animator animation) { 790 if (mRemoveEmptyScreenRunnable != null) { 791 mRemoveEmptyScreenRunnable.run(); 792 } 793 if (onComplete != null) { 794 onComplete.run(); 795 } 796 } 797 }); 798 oa.start(); 799 } 800 801 public boolean hasExtraEmptyScreen() { 802 int nScreens = getChildCount(); 803 nScreens = nScreens - numCustomPages(); 804 return mWorkspaceScreens.containsKey(EXTRA_EMPTY_SCREEN_ID) && nScreens > 1; 805 } 806 807 public long commitExtraEmptyScreen() { 808 // Log to disk 809 Launcher.addDumpLog(TAG, "11683562 - commitExtraEmptyScreen()", true); 810 811 int index = getPageIndexForScreenId(EXTRA_EMPTY_SCREEN_ID); 812 CellLayout cl = mWorkspaceScreens.get(EXTRA_EMPTY_SCREEN_ID); 813 mWorkspaceScreens.remove(EXTRA_EMPTY_SCREEN_ID); 814 mScreenOrder.remove(EXTRA_EMPTY_SCREEN_ID); 815 816 long newId = LauncherAppState.getLauncherProvider().generateNewScreenId(); 817 mWorkspaceScreens.put(newId, cl); 818 mScreenOrder.add(newId); 819 820 // Update the page indicator marker 821 if (getPageIndicator() != null) { 822 getPageIndicator().updateMarker(index, getPageIndicatorMarker(index)); 823 } 824 825 // Update the model for the new screen 826 mLauncher.getModel().updateWorkspaceScreenOrder(mLauncher, mScreenOrder); 827 828 return newId; 829 } 830 831 public CellLayout getScreenWithId(long screenId) { 832 CellLayout layout = mWorkspaceScreens.get(screenId); 833 return layout; 834 } 835 836 public long getIdForScreen(CellLayout layout) { 837 Iterator<Long> iter = mWorkspaceScreens.keySet().iterator(); 838 while (iter.hasNext()) { 839 long id = iter.next(); 840 if (mWorkspaceScreens.get(id) == layout) { 841 return id; 842 } 843 } 844 return -1; 845 } 846 847 public int getPageIndexForScreenId(long screenId) { 848 return indexOfChild(mWorkspaceScreens.get(screenId)); 849 } 850 851 public long getScreenIdForPageIndex(int index) { 852 if (0 <= index && index < mScreenOrder.size()) { 853 return mScreenOrder.get(index); 854 } 855 return -1; 856 } 857 858 ArrayList<Long> getScreenOrder() { 859 return mScreenOrder; 860 } 861 862 public void stripEmptyScreens() { 863 // Log to disk 864 Launcher.addDumpLog(TAG, "11683562 - stripEmptyScreens()", true); 865 866 if (isPageMoving()) { 867 mStripScreensOnPageStopMoving = true; 868 return; 869 } 870 871 int currentPage = getNextPage(); 872 ArrayList<Long> removeScreens = new ArrayList<Long>(); 873 for (Long id: mWorkspaceScreens.keySet()) { 874 CellLayout cl = mWorkspaceScreens.get(id); 875 if (id >= 0 && cl.getShortcutsAndWidgets().getChildCount() == 0) { 876 removeScreens.add(id); 877 } 878 } 879 880 // We enforce at least one page to add new items to. In the case that we remove the last 881 // such screen, we convert the last screen to the empty screen 882 int minScreens = 1 + numCustomPages(); 883 884 int pageShift = 0; 885 for (Long id: removeScreens) { 886 Launcher.addDumpLog(TAG, "11683562 - removing id: " + id, true); 887 CellLayout cl = mWorkspaceScreens.get(id); 888 mWorkspaceScreens.remove(id); 889 mScreenOrder.remove(id); 890 891 if (getChildCount() > minScreens) { 892 if (indexOfChild(cl) < currentPage) { 893 pageShift++; 894 } 895 removeView(cl); 896 } else { 897 // if this is the last non-custom content screen, convert it to the empty screen 898 mRemoveEmptyScreenRunnable = null; 899 mWorkspaceScreens.put(EXTRA_EMPTY_SCREEN_ID, cl); 900 mScreenOrder.add(EXTRA_EMPTY_SCREEN_ID); 901 } 902 } 903 904 if (!removeScreens.isEmpty()) { 905 // Update the model if we have changed any screens 906 mLauncher.getModel().updateWorkspaceScreenOrder(mLauncher, mScreenOrder); 907 } 908 909 if (pageShift >= 0) { 910 setCurrentPage(currentPage - pageShift); 911 } 912 } 913 914 // See implementation for parameter definition. 915 void addInScreen(View child, long container, long screenId, 916 int x, int y, int spanX, int spanY) { 917 addInScreen(child, container, screenId, x, y, spanX, spanY, false, false); 918 } 919 920 // At bind time, we use the rank (screenId) to compute x and y for hotseat items. 921 // See implementation for parameter definition. 922 void addInScreenFromBind(View child, long container, long screenId, int x, int y, 923 int spanX, int spanY) { 924 addInScreen(child, container, screenId, x, y, spanX, spanY, false, true); 925 } 926 927 // See implementation for parameter definition. 928 void addInScreen(View child, long container, long screenId, int x, int y, int spanX, int spanY, 929 boolean insert) { 930 addInScreen(child, container, screenId, x, y, spanX, spanY, insert, false); 931 } 932 933 /** 934 * Adds the specified child in the specified screen. The position and dimension of 935 * the child are defined by x, y, spanX and spanY. 936 * 937 * @param child The child to add in one of the workspace's screens. 938 * @param screenId The screen in which to add the child. 939 * @param x The X position of the child in the screen's grid. 940 * @param y The Y position of the child in the screen's grid. 941 * @param spanX The number of cells spanned horizontally by the child. 942 * @param spanY The number of cells spanned vertically by the child. 943 * @param insert When true, the child is inserted at the beginning of the children list. 944 * @param computeXYFromRank When true, we use the rank (stored in screenId) to compute 945 * the x and y position in which to place hotseat items. Otherwise 946 * we use the x and y position to compute the rank. 947 */ 948 void addInScreen(View child, long container, long screenId, int x, int y, int spanX, int spanY, 949 boolean insert, boolean computeXYFromRank) { 950 if (container == LauncherSettings.Favorites.CONTAINER_DESKTOP) { 951 if (getScreenWithId(screenId) == null) { 952 Log.e(TAG, "Skipping child, screenId " + screenId + " not found"); 953 // DEBUGGING - Print out the stack trace to see where we are adding from 954 new Throwable().printStackTrace(); 955 return; 956 } 957 } 958 if (screenId == EXTRA_EMPTY_SCREEN_ID) { 959 // This should never happen 960 throw new RuntimeException("Screen id should not be EXTRA_EMPTY_SCREEN_ID"); 961 } 962 963 final CellLayout layout; 964 if (container == LauncherSettings.Favorites.CONTAINER_HOTSEAT) { 965 layout = mLauncher.getHotseat().getLayout(); 966 child.setOnKeyListener(null); 967 968 // Hide folder title in the hotseat 969 if (child instanceof FolderIcon) { 970 ((FolderIcon) child).setTextVisible(false); 971 } 972 973 if (computeXYFromRank) { 974 x = mLauncher.getHotseat().getCellXFromOrder((int) screenId); 975 y = mLauncher.getHotseat().getCellYFromOrder((int) screenId); 976 } else { 977 screenId = mLauncher.getHotseat().getOrderInHotseat(x, y); 978 } 979 } else { 980 // Show folder title if not in the hotseat 981 if (child instanceof FolderIcon) { 982 ((FolderIcon) child).setTextVisible(true); 983 } 984 layout = getScreenWithId(screenId); 985 child.setOnKeyListener(new IconKeyEventListener()); 986 } 987 988 ViewGroup.LayoutParams genericLp = child.getLayoutParams(); 989 CellLayout.LayoutParams lp; 990 if (genericLp == null || !(genericLp instanceof CellLayout.LayoutParams)) { 991 lp = new CellLayout.LayoutParams(x, y, spanX, spanY); 992 } else { 993 lp = (CellLayout.LayoutParams) genericLp; 994 lp.cellX = x; 995 lp.cellY = y; 996 lp.cellHSpan = spanX; 997 lp.cellVSpan = spanY; 998 } 999 1000 if (spanX < 0 && spanY < 0) { 1001 lp.isLockedToGrid = false; 1002 } 1003 1004 // Get the canonical child id to uniquely represent this view in this screen 1005 ItemInfo info = (ItemInfo) child.getTag(); 1006 int childId = mLauncher.getViewIdForItem(info); 1007 1008 boolean markCellsAsOccupied = !(child instanceof Folder); 1009 if (!layout.addViewToCellLayout(child, insert ? 0 : -1, childId, lp, markCellsAsOccupied)) { 1010 // TODO: This branch occurs when the workspace is adding views 1011 // outside of the defined grid 1012 // maybe we should be deleting these items from the LauncherModel? 1013 Launcher.addDumpLog(TAG, "Failed to add to item at (" + lp.cellX + "," + lp.cellY + ") to CellLayout", true); 1014 } 1015 1016 if (!(child instanceof Folder)) { 1017 child.setHapticFeedbackEnabled(false); 1018 child.setOnLongClickListener(mLongClickListener); 1019 } 1020 if (child instanceof DropTarget) { 1021 mDragController.addDropTarget((DropTarget) child); 1022 } 1023 } 1024 1025 /** 1026 * Called directly from a CellLayout (not by the framework), after we've been added as a 1027 * listener via setOnInterceptTouchEventListener(). This allows us to tell the CellLayout 1028 * that it should intercept touch events, which is not something that is normally supported. 1029 */ 1030 @Override 1031 public boolean onTouch(View v, MotionEvent event) { 1032 return (isSmall() || !isFinishedSwitchingState()) 1033 || (!isSmall() && indexOfChild(v) != mCurrentPage); 1034 } 1035 1036 public boolean isSwitchingState() { 1037 return mIsSwitchingState; 1038 } 1039 1040 /** This differs from isSwitchingState in that we take into account how far the transition 1041 * has completed. */ 1042 public boolean isFinishedSwitchingState() { 1043 return !mIsSwitchingState || (mTransitionProgress > 0.5f); 1044 } 1045 1046 protected void onWindowVisibilityChanged (int visibility) { 1047 mLauncher.onWindowVisibilityChanged(visibility); 1048 } 1049 1050 @Override 1051 public boolean dispatchUnhandledMove(View focused, int direction) { 1052 if (isSmall() || !isFinishedSwitchingState()) { 1053 // when the home screens are shrunken, shouldn't allow side-scrolling 1054 return false; 1055 } 1056 return super.dispatchUnhandledMove(focused, direction); 1057 } 1058 1059 @Override 1060 public boolean onInterceptTouchEvent(MotionEvent ev) { 1061 switch (ev.getAction() & MotionEvent.ACTION_MASK) { 1062 case MotionEvent.ACTION_DOWN: 1063 mXDown = ev.getX(); 1064 mYDown = ev.getY(); 1065 mTouchDownTime = System.currentTimeMillis(); 1066 break; 1067 case MotionEvent.ACTION_POINTER_UP: 1068 case MotionEvent.ACTION_UP: 1069 if (mTouchState == TOUCH_STATE_REST) { 1070 final CellLayout currentPage = (CellLayout) getChildAt(mCurrentPage); 1071 if (!currentPage.lastDownOnOccupiedCell()) { 1072 onWallpaperTap(ev); 1073 } 1074 } 1075 } 1076 return super.onInterceptTouchEvent(ev); 1077 } 1078 1079 protected void reinflateWidgetsIfNecessary() { 1080 final int clCount = getChildCount(); 1081 for (int i = 0; i < clCount; i++) { 1082 CellLayout cl = (CellLayout) getChildAt(i); 1083 ShortcutAndWidgetContainer swc = cl.getShortcutsAndWidgets(); 1084 final int itemCount = swc.getChildCount(); 1085 for (int j = 0; j < itemCount; j++) { 1086 View v = swc.getChildAt(j); 1087 1088 if (v.getTag() instanceof LauncherAppWidgetInfo) { 1089 LauncherAppWidgetInfo info = (LauncherAppWidgetInfo) v.getTag(); 1090 LauncherAppWidgetHostView lahv = (LauncherAppWidgetHostView) info.hostView; 1091 if (lahv != null && lahv.orientationChangedSincedInflation()) { 1092 mLauncher.removeAppWidget(info); 1093 // Remove the current widget which is inflated with the wrong orientation 1094 cl.removeView(lahv); 1095 mLauncher.bindAppWidget(info); 1096 } 1097 } 1098 } 1099 } 1100 } 1101 1102 @Override 1103 protected void determineScrollingStart(MotionEvent ev) { 1104 if (!isFinishedSwitchingState()) return; 1105 1106 float deltaX = ev.getX() - mXDown; 1107 float absDeltaX = Math.abs(deltaX); 1108 float absDeltaY = Math.abs(ev.getY() - mYDown); 1109 1110 if (Float.compare(absDeltaX, 0f) == 0) return; 1111 1112 float slope = absDeltaY / absDeltaX; 1113 float theta = (float) Math.atan(slope); 1114 1115 if (absDeltaX > mTouchSlop || absDeltaY > mTouchSlop) { 1116 cancelCurrentPageLongPress(); 1117 } 1118 1119 boolean passRightSwipesToCustomContent = 1120 (mTouchDownTime - mCustomContentShowTime) > CUSTOM_CONTENT_GESTURE_DELAY; 1121 1122 boolean swipeInIgnoreDirection = isLayoutRtl() ? deltaX < 0 : deltaX > 0; 1123 if (swipeInIgnoreDirection && getScreenIdForPageIndex(getCurrentPage()) == 1124 CUSTOM_CONTENT_SCREEN_ID && passRightSwipesToCustomContent) { 1125 // Pass swipes to the right to the custom content page. 1126 return; 1127 } 1128 1129 if (theta > MAX_SWIPE_ANGLE) { 1130 // Above MAX_SWIPE_ANGLE, we don't want to ever start scrolling the workspace 1131 return; 1132 } else if (theta > START_DAMPING_TOUCH_SLOP_ANGLE) { 1133 // Above START_DAMPING_TOUCH_SLOP_ANGLE and below MAX_SWIPE_ANGLE, we want to 1134 // increase the touch slop to make it harder to begin scrolling the workspace. This 1135 // results in vertically scrolling widgets to more easily. The higher the angle, the 1136 // more we increase touch slop. 1137 theta -= START_DAMPING_TOUCH_SLOP_ANGLE; 1138 float extraRatio = (float) 1139 Math.sqrt((theta / (MAX_SWIPE_ANGLE - START_DAMPING_TOUCH_SLOP_ANGLE))); 1140 super.determineScrollingStart(ev, 1 + TOUCH_SLOP_DAMPING_FACTOR * extraRatio); 1141 } else { 1142 // Below START_DAMPING_TOUCH_SLOP_ANGLE, we don't do anything special 1143 super.determineScrollingStart(ev); 1144 } 1145 } 1146 1147 protected void onPageBeginMoving() { 1148 super.onPageBeginMoving(); 1149 1150 if (isHardwareAccelerated()) { 1151 updateChildrenLayersEnabled(false); 1152 } else { 1153 if (mNextPage != INVALID_PAGE) { 1154 // we're snapping to a particular screen 1155 enableChildrenCache(mCurrentPage, mNextPage); 1156 } else { 1157 // this is when user is actively dragging a particular screen, they might 1158 // swipe it either left or right (but we won't advance by more than one screen) 1159 enableChildrenCache(mCurrentPage - 1, mCurrentPage + 1); 1160 } 1161 } 1162 1163 // If we are not fading in adjacent screens, we still need to restore the alpha in case the 1164 // user scrolls while we are transitioning (should not affect dispatchDraw optimizations) 1165 if (!mWorkspaceFadeInAdjacentScreens) { 1166 for (int i = 0; i < getChildCount(); ++i) { 1167 ((CellLayout) getPageAt(i)).setShortcutAndWidgetAlpha(1f); 1168 } 1169 } 1170 } 1171 1172 protected void onPageEndMoving() { 1173 super.onPageEndMoving(); 1174 1175 if (isHardwareAccelerated()) { 1176 updateChildrenLayersEnabled(false); 1177 } else { 1178 clearChildrenCache(); 1179 } 1180 1181 if (mDragController.isDragging()) { 1182 if (isSmall()) { 1183 // If we are in springloaded mode, then force an event to check if the current touch 1184 // is under a new page (to scroll to) 1185 mDragController.forceTouchMove(); 1186 } 1187 } 1188 1189 if (mDelayedResizeRunnable != null) { 1190 mDelayedResizeRunnable.run(); 1191 mDelayedResizeRunnable = null; 1192 } 1193 1194 if (mDelayedSnapToPageRunnable != null) { 1195 mDelayedSnapToPageRunnable.run(); 1196 mDelayedSnapToPageRunnable = null; 1197 } 1198 if (mStripScreensOnPageStopMoving) { 1199 stripEmptyScreens(); 1200 mStripScreensOnPageStopMoving = false; 1201 } 1202 } 1203 1204 @Override 1205 protected void notifyPageSwitchListener() { 1206 super.notifyPageSwitchListener(); 1207 Launcher.setScreen(getNextPage()); 1208 1209 if (hasCustomContent() && getNextPage() == 0 && !mCustomContentShowing) { 1210 mCustomContentShowing = true; 1211 if (mCustomContentCallbacks != null) { 1212 mCustomContentCallbacks.onShow(); 1213 mCustomContentShowTime = System.currentTimeMillis(); 1214 mLauncher.updateVoiceButtonProxyVisible(false); 1215 } 1216 } else if (hasCustomContent() && getNextPage() != 0 && mCustomContentShowing) { 1217 mCustomContentShowing = false; 1218 if (mCustomContentCallbacks != null) { 1219 mCustomContentCallbacks.onHide(); 1220 mLauncher.resetQSBScroll(); 1221 mLauncher.updateVoiceButtonProxyVisible(false); 1222 } 1223 } 1224 if (getPageIndicator() != null) { 1225 getPageIndicator().setContentDescription(getPageIndicatorDescription()); 1226 } 1227 } 1228 1229 protected CustomContentCallbacks getCustomContentCallbacks() { 1230 return mCustomContentCallbacks; 1231 } 1232 1233 protected void setWallpaperDimension() { 1234 new AsyncTask<Void, Void, Void>() { 1235 public Void doInBackground(Void ... args) { 1236 String spKey = WallpaperCropActivity.getSharedPreferencesKey(); 1237 SharedPreferences sp = 1238 mLauncher.getSharedPreferences(spKey, Context.MODE_MULTI_PROCESS); 1239 LauncherWallpaperPickerActivity.suggestWallpaperDimension(mLauncher.getResources(), 1240 sp, mLauncher.getWindowManager(), mWallpaperManager); 1241 return null; 1242 } 1243 }.executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR, (Void) null); 1244 } 1245 1246 protected void snapToPage(int whichPage, Runnable r) { 1247 snapToPage(whichPage, SLOW_PAGE_SNAP_ANIMATION_DURATION, r); 1248 } 1249 1250 protected void snapToPage(int whichPage, int duration, Runnable r) { 1251 if (mDelayedSnapToPageRunnable != null) { 1252 mDelayedSnapToPageRunnable.run(); 1253 } 1254 mDelayedSnapToPageRunnable = r; 1255 snapToPage(whichPage, duration); 1256 } 1257 1258 protected void snapToScreenId(long screenId, Runnable r) { 1259 snapToPage(getPageIndexForScreenId(screenId), r); 1260 } 1261 1262 class WallpaperOffsetInterpolator implements Choreographer.FrameCallback { 1263 float mFinalOffset = 0.0f; 1264 float mCurrentOffset = 0.5f; // to force an initial update 1265 boolean mWaitingForUpdate; 1266 Choreographer mChoreographer; 1267 Interpolator mInterpolator; 1268 boolean mAnimating; 1269 long mAnimationStartTime; 1270 float mAnimationStartOffset; 1271 private final int ANIMATION_DURATION = 250; 1272 // Don't use all the wallpaper for parallax until you have at least this many pages 1273 private final int MIN_PARALLAX_PAGE_SPAN = 3; 1274 int mNumScreens; 1275 1276 public WallpaperOffsetInterpolator() { 1277 mChoreographer = Choreographer.getInstance(); 1278 mInterpolator = new DecelerateInterpolator(1.5f); 1279 } 1280 1281 @Override 1282 public void doFrame(long frameTimeNanos) { 1283 updateOffset(false); 1284 } 1285 1286 private void updateOffset(boolean force) { 1287 if (mWaitingForUpdate || force) { 1288 mWaitingForUpdate = false; 1289 if (computeScrollOffset() && mWindowToken != null) { 1290 try { 1291 mWallpaperManager.setWallpaperOffsets(mWindowToken, 1292 mWallpaperOffset.getCurrX(), 0.5f); 1293 setWallpaperOffsetSteps(); 1294 } catch (IllegalArgumentException e) { 1295 Log.e(TAG, "Error updating wallpaper offset: " + e); 1296 } 1297 } 1298 } 1299 } 1300 1301 public boolean computeScrollOffset() { 1302 final float oldOffset = mCurrentOffset; 1303 if (mAnimating) { 1304 long durationSinceAnimation = System.currentTimeMillis() - mAnimationStartTime; 1305 float t0 = durationSinceAnimation / (float) ANIMATION_DURATION; 1306 float t1 = mInterpolator.getInterpolation(t0); 1307 mCurrentOffset = mAnimationStartOffset + 1308 (mFinalOffset - mAnimationStartOffset) * t1; 1309 mAnimating = durationSinceAnimation < ANIMATION_DURATION; 1310 } else { 1311 mCurrentOffset = mFinalOffset; 1312 } 1313 1314 if (Math.abs(mCurrentOffset - mFinalOffset) > 0.0000001f) { 1315 scheduleUpdate(); 1316 } 1317 if (Math.abs(oldOffset - mCurrentOffset) > 0.0000001f) { 1318 return true; 1319 } 1320 return false; 1321 } 1322 1323 private float wallpaperOffsetForCurrentScroll() { 1324 if (getChildCount() <= 1) { 1325 return 0; 1326 } 1327 1328 // Exclude the leftmost page 1329 int emptyExtraPages = numEmptyScreensToIgnore(); 1330 int firstIndex = numCustomPages(); 1331 // Exclude the last extra empty screen (if we have > MIN_PARALLAX_PAGE_SPAN pages) 1332 int lastIndex = getChildCount() - 1 - emptyExtraPages; 1333 if (isLayoutRtl()) { 1334 int temp = firstIndex; 1335 firstIndex = lastIndex; 1336 lastIndex = temp; 1337 } 1338 1339 int firstPageScrollX = getScrollForPage(firstIndex); 1340 int scrollRange = getScrollForPage(lastIndex) - firstPageScrollX; 1341 if (scrollRange == 0) { 1342 return 0; 1343 } else { 1344 // TODO: do different behavior if it's a live wallpaper? 1345 // Sometimes the left parameter of the pages is animated during a layout transition; 1346 // this parameter offsets it to keep the wallpaper from animating as well 1347 int adjustedScroll = 1348 getScrollX() - firstPageScrollX - getLayoutTransitionOffsetForPage(0); 1349 float offset = Math.min(1, adjustedScroll / (float) scrollRange); 1350 offset = Math.max(0, offset); 1351 // Don't use up all the wallpaper parallax until you have at least 1352 // MIN_PARALLAX_PAGE_SPAN pages 1353 int numScrollingPages = getNumScreensExcludingEmptyAndCustom(); 1354 int parallaxPageSpan; 1355 if (mWallpaperIsLiveWallpaper) { 1356 parallaxPageSpan = numScrollingPages - 1; 1357 } else { 1358 parallaxPageSpan = Math.max(MIN_PARALLAX_PAGE_SPAN, numScrollingPages - 1); 1359 } 1360 mNumPagesForWallpaperParallax = parallaxPageSpan; 1361 1362 // On RTL devices, push the wallpaper offset to the right if we don't have enough 1363 // pages (ie if numScrollingPages < MIN_PARALLAX_PAGE_SPAN) 1364 int padding = isLayoutRtl() ? parallaxPageSpan - numScrollingPages + 1 : 0; 1365 return offset * (padding + numScrollingPages - 1) / parallaxPageSpan; 1366 } 1367 } 1368 1369 private int numEmptyScreensToIgnore() { 1370 int numScrollingPages = getChildCount() - numCustomPages(); 1371 if (numScrollingPages >= MIN_PARALLAX_PAGE_SPAN && hasExtraEmptyScreen()) { 1372 return 1; 1373 } else { 1374 return 0; 1375 } 1376 } 1377 1378 private int getNumScreensExcludingEmptyAndCustom() { 1379 int numScrollingPages = getChildCount() - numEmptyScreensToIgnore() - numCustomPages(); 1380 return numScrollingPages; 1381 } 1382 1383 public void syncWithScroll() { 1384 float offset = wallpaperOffsetForCurrentScroll(); 1385 mWallpaperOffset.setFinalX(offset); 1386 updateOffset(true); 1387 } 1388 1389 public float getCurrX() { 1390 return mCurrentOffset; 1391 } 1392 1393 public float getFinalX() { 1394 return mFinalOffset; 1395 } 1396 1397 private void animateToFinal() { 1398 mAnimating = true; 1399 mAnimationStartOffset = mCurrentOffset; 1400 mAnimationStartTime = System.currentTimeMillis(); 1401 } 1402 1403 private void setWallpaperOffsetSteps() { 1404 // Set wallpaper offset steps (1 / (number of screens - 1)) 1405 float xOffset = 1.0f / mNumPagesForWallpaperParallax; 1406 if (xOffset != mLastSetWallpaperOffsetSteps) { 1407 mWallpaperManager.setWallpaperOffsetSteps(xOffset, 1.0f); 1408 mLastSetWallpaperOffsetSteps = xOffset; 1409 } 1410 } 1411 1412 public void setFinalX(float x) { 1413 scheduleUpdate(); 1414 mFinalOffset = Math.max(0f, Math.min(x, 1.0f)); 1415 if (getNumScreensExcludingEmptyAndCustom() != mNumScreens) { 1416 if (mNumScreens > 0) { 1417 // Don't animate if we're going from 0 screens 1418 animateToFinal(); 1419 } 1420 mNumScreens = getNumScreensExcludingEmptyAndCustom(); 1421 } 1422 } 1423 1424 private void scheduleUpdate() { 1425 if (!mWaitingForUpdate) { 1426 mChoreographer.postFrameCallback(this); 1427 mWaitingForUpdate = true; 1428 } 1429 } 1430 1431 public void jumpToFinal() { 1432 mCurrentOffset = mFinalOffset; 1433 } 1434 } 1435 1436 @Override 1437 public void computeScroll() { 1438 super.computeScroll(); 1439 mWallpaperOffset.syncWithScroll(); 1440 } 1441 1442 void showOutlines() { 1443 if (!isSmall() && !mIsSwitchingState) { 1444 if (mChildrenOutlineFadeOutAnimation != null) mChildrenOutlineFadeOutAnimation.cancel(); 1445 if (mChildrenOutlineFadeInAnimation != null) mChildrenOutlineFadeInAnimation.cancel(); 1446 mChildrenOutlineFadeInAnimation = LauncherAnimUtils.ofFloat(this, "childrenOutlineAlpha", 1.0f); 1447 mChildrenOutlineFadeInAnimation.setDuration(CHILDREN_OUTLINE_FADE_IN_DURATION); 1448 mChildrenOutlineFadeInAnimation.start(); 1449 } 1450 } 1451 1452 void hideOutlines() { 1453 if (!isSmall() && !mIsSwitchingState) { 1454 if (mChildrenOutlineFadeInAnimation != null) mChildrenOutlineFadeInAnimation.cancel(); 1455 if (mChildrenOutlineFadeOutAnimation != null) mChildrenOutlineFadeOutAnimation.cancel(); 1456 mChildrenOutlineFadeOutAnimation = LauncherAnimUtils.ofFloat(this, "childrenOutlineAlpha", 0.0f); 1457 mChildrenOutlineFadeOutAnimation.setDuration(CHILDREN_OUTLINE_FADE_OUT_DURATION); 1458 mChildrenOutlineFadeOutAnimation.setStartDelay(CHILDREN_OUTLINE_FADE_OUT_DELAY); 1459 mChildrenOutlineFadeOutAnimation.start(); 1460 } 1461 } 1462 1463 public void showOutlinesTemporarily() { 1464 if (!mIsPageMoving && !isTouchActive()) { 1465 snapToPage(mCurrentPage); 1466 } 1467 } 1468 1469 public void setChildrenOutlineAlpha(float alpha) { 1470 mChildrenOutlineAlpha = alpha; 1471 for (int i = 0; i < getChildCount(); i++) { 1472 CellLayout cl = (CellLayout) getChildAt(i); 1473 cl.setBackgroundAlpha(alpha); 1474 } 1475 } 1476 1477 public float getChildrenOutlineAlpha() { 1478 return mChildrenOutlineAlpha; 1479 } 1480 1481 void disableBackground() { 1482 mDrawBackground = false; 1483 } 1484 void enableBackground() { 1485 mDrawBackground = true; 1486 } 1487 1488 private void animateBackgroundGradient(float finalAlpha, boolean animated) { 1489 if (mBackground == null) return; 1490 if (mBackgroundFadeInAnimation != null) { 1491 mBackgroundFadeInAnimation.cancel(); 1492 mBackgroundFadeInAnimation = null; 1493 } 1494 if (mBackgroundFadeOutAnimation != null) { 1495 mBackgroundFadeOutAnimation.cancel(); 1496 mBackgroundFadeOutAnimation = null; 1497 } 1498 float startAlpha = getBackgroundAlpha(); 1499 if (finalAlpha != startAlpha) { 1500 if (animated) { 1501 mBackgroundFadeOutAnimation = 1502 LauncherAnimUtils.ofFloat(this, startAlpha, finalAlpha); 1503 mBackgroundFadeOutAnimation.addUpdateListener(new AnimatorUpdateListener() { 1504 public void onAnimationUpdate(ValueAnimator animation) { 1505 setBackgroundAlpha(((Float) animation.getAnimatedValue()).floatValue()); 1506 } 1507 }); 1508 mBackgroundFadeOutAnimation.setInterpolator(new DecelerateInterpolator(1.5f)); 1509 mBackgroundFadeOutAnimation.setDuration(BACKGROUND_FADE_OUT_DURATION); 1510 mBackgroundFadeOutAnimation.start(); 1511 } else { 1512 setBackgroundAlpha(finalAlpha); 1513 } 1514 } 1515 } 1516 1517 public void setBackgroundAlpha(float alpha) { 1518 if (alpha != mBackgroundAlpha) { 1519 mBackgroundAlpha = alpha; 1520 invalidate(); 1521 } 1522 } 1523 1524 public float getBackgroundAlpha() { 1525 return mBackgroundAlpha; 1526 } 1527 1528 float backgroundAlphaInterpolator(float r) { 1529 float pivotA = 0.1f; 1530 float pivotB = 0.4f; 1531 if (r < pivotA) { 1532 return 0; 1533 } else if (r > pivotB) { 1534 return 1.0f; 1535 } else { 1536 return (r - pivotA)/(pivotB - pivotA); 1537 } 1538 } 1539 1540 private void updatePageAlphaValues(int screenCenter) { 1541 boolean isInOverscroll = mOverScrollX < 0 || mOverScrollX > mMaxScrollX; 1542 if (mWorkspaceFadeInAdjacentScreens && 1543 mState == State.NORMAL && 1544 !mIsSwitchingState && 1545 !isInOverscroll) { 1546 for (int i = numCustomPages(); i < getChildCount(); i++) { 1547 CellLayout child = (CellLayout) getChildAt(i); 1548 if (child != null) { 1549 float scrollProgress = getScrollProgress(screenCenter, child, i); 1550 float alpha = 1 - Math.abs(scrollProgress); 1551 child.getShortcutsAndWidgets().setAlpha(alpha); 1552 } 1553 } 1554 } 1555 } 1556 1557 private void setChildrenBackgroundAlphaMultipliers(float a) { 1558 for (int i = 0; i < getChildCount(); i++) { 1559 CellLayout child = (CellLayout) getChildAt(i); 1560 child.setBackgroundAlphaMultiplier(a); 1561 } 1562 } 1563 1564 public boolean hasCustomContent() { 1565 return (mScreenOrder.size() > 0 && mScreenOrder.get(0) == CUSTOM_CONTENT_SCREEN_ID); 1566 } 1567 1568 public int numCustomPages() { 1569 return hasCustomContent() ? 1 : 0; 1570 } 1571 1572 public boolean isOnOrMovingToCustomContent() { 1573 return hasCustomContent() && getNextPage() == 0; 1574 } 1575 1576 private void updateStateForCustomContent(int screenCenter) { 1577 float translationX = 0; 1578 float progress = 0; 1579 if (hasCustomContent()) { 1580 int index = mScreenOrder.indexOf(CUSTOM_CONTENT_SCREEN_ID); 1581 1582 int scrollDelta = getScrollX() - getScrollForPage(index) - 1583 getLayoutTransitionOffsetForPage(index); 1584 float scrollRange = getScrollForPage(index + 1) - getScrollForPage(index); 1585 translationX = scrollRange - scrollDelta; 1586 progress = (scrollRange - scrollDelta) / scrollRange; 1587 1588 if (isLayoutRtl()) { 1589 translationX = Math.min(0, translationX); 1590 } else { 1591 translationX = Math.max(0, translationX); 1592 } 1593 progress = Math.max(0, progress); 1594 } 1595 1596 if (Float.compare(progress, mLastCustomContentScrollProgress) == 0) return; 1597 1598 CellLayout cc = mWorkspaceScreens.get(CUSTOM_CONTENT_SCREEN_ID); 1599 if (progress > 0 && cc.getVisibility() != VISIBLE && !isSmall()) { 1600 cc.setVisibility(VISIBLE); 1601 } 1602 1603 mLastCustomContentScrollProgress = progress; 1604 1605 setBackgroundAlpha(progress * 0.8f); 1606 1607 if (mLauncher.getHotseat() != null) { 1608 mLauncher.getHotseat().setTranslationX(translationX); 1609 } 1610 1611 if (getPageIndicator() != null) { 1612 getPageIndicator().setTranslationX(translationX); 1613 } 1614 1615 if (mCustomContentCallbacks != null) { 1616 mCustomContentCallbacks.onScrollProgressChanged(progress); 1617 } 1618 } 1619 1620 @Override 1621 protected OnClickListener getPageIndicatorClickListener() { 1622 AccessibilityManager am = (AccessibilityManager) 1623 getContext().getSystemService(Context.ACCESSIBILITY_SERVICE); 1624 if (!am.isTouchExplorationEnabled()) { 1625 return null; 1626 } 1627 OnClickListener listener = new OnClickListener() { 1628 @Override 1629 public void onClick(View arg0) { 1630 enterOverviewMode(); 1631 } 1632 }; 1633 return listener; 1634 } 1635 1636 @Override 1637 protected void screenScrolled(int screenCenter) { 1638 final boolean isRtl = isLayoutRtl(); 1639 super.screenScrolled(screenCenter); 1640 1641 updatePageAlphaValues(screenCenter); 1642 updateStateForCustomContent(screenCenter); 1643 enableHwLayersOnVisiblePages(); 1644 1645 boolean shouldOverScroll = (mOverScrollX < 0 && (!hasCustomContent() || isLayoutRtl())) || 1646 (mOverScrollX > mMaxScrollX && (!hasCustomContent() || !isLayoutRtl())); 1647 1648 if (shouldOverScroll) { 1649 int index = 0; 1650 float pivotX = 0f; 1651 final float leftBiasedPivot = 0.25f; 1652 final float rightBiasedPivot = 0.75f; 1653 final int lowerIndex = 0; 1654 final int upperIndex = getChildCount() - 1; 1655 1656 final boolean isLeftPage = mOverScrollX < 0; 1657 index = (!isRtl && isLeftPage) || (isRtl && !isLeftPage) ? lowerIndex : upperIndex; 1658 pivotX = isLeftPage ? rightBiasedPivot : leftBiasedPivot; 1659 1660 CellLayout cl = (CellLayout) getChildAt(index); 1661 float scrollProgress = getScrollProgress(screenCenter, cl, index); 1662 cl.setOverScrollAmount(Math.abs(scrollProgress), isLeftPage); 1663 float rotation = -WORKSPACE_OVERSCROLL_ROTATION * scrollProgress; 1664 cl.setRotationY(rotation); 1665 1666 if (!mOverscrollTransformsSet || Float.compare(mLastOverscrollPivotX, pivotX) != 0) { 1667 mOverscrollTransformsSet = true; 1668 mLastOverscrollPivotX = pivotX; 1669 cl.setCameraDistance(mDensity * mCameraDistance); 1670 cl.setPivotX(cl.getMeasuredWidth() * pivotX); 1671 cl.setPivotY(cl.getMeasuredHeight() * 0.5f); 1672 cl.setOverscrollTransformsDirty(true); 1673 } 1674 } else { 1675 if (mOverscrollTransformsSet && getChildCount() > 0) { 1676 mOverscrollTransformsSet = false; 1677 ((CellLayout) getChildAt(0)).resetOverscrollTransforms(); 1678 ((CellLayout) getChildAt(getChildCount() - 1)).resetOverscrollTransforms(); 1679 } 1680 } 1681 } 1682 1683 @Override 1684 protected void overScroll(float amount) { 1685 acceleratedOverScroll(amount); 1686 } 1687 1688 protected void onAttachedToWindow() { 1689 super.onAttachedToWindow(); 1690 mWindowToken = getWindowToken(); 1691 computeScroll(); 1692 mDragController.setWindowToken(mWindowToken); 1693 } 1694 1695 protected void onDetachedFromWindow() { 1696 super.onDetachedFromWindow(); 1697 mWindowToken = null; 1698 } 1699 1700 protected void onResume() { 1701 if (getPageIndicator() != null) { 1702 // In case accessibility state has changed, we need to perform this on every 1703 // attach to window 1704 OnClickListener listener = getPageIndicatorClickListener(); 1705 if (listener != null) { 1706 getPageIndicator().setOnClickListener(listener); 1707 } 1708 } 1709 AccessibilityManager am = (AccessibilityManager) 1710 getContext().getSystemService(Context.ACCESSIBILITY_SERVICE); 1711 sAccessibilityEnabled = am.isEnabled(); 1712 1713 // Update wallpaper dimensions if they were changed since last onResume 1714 // (we also always set the wallpaper dimensions in the constructor) 1715 if (LauncherAppState.getInstance().hasWallpaperChangedSinceLastCheck()) { 1716 setWallpaperDimension(); 1717 } 1718 mWallpaperIsLiveWallpaper = mWallpaperManager.getWallpaperInfo() != null; 1719 // Force the wallpaper offset steps to be set again, because another app might have changed 1720 // them 1721 mLastSetWallpaperOffsetSteps = 0f; 1722 } 1723 1724 @Override 1725 protected void onLayout(boolean changed, int left, int top, int right, int bottom) { 1726 if (mFirstLayout && mCurrentPage >= 0 && mCurrentPage < getChildCount()) { 1727 mWallpaperOffset.syncWithScroll(); 1728 mWallpaperOffset.jumpToFinal(); 1729 } 1730 super.onLayout(changed, left, top, right, bottom); 1731 } 1732 1733 @Override 1734 protected void onDraw(Canvas canvas) { 1735 // Draw the background gradient if necessary 1736 if (mBackground != null && mBackgroundAlpha > 0.0f && mDrawBackground) { 1737 int alpha = (int) (mBackgroundAlpha * 255); 1738 mBackground.setAlpha(alpha); 1739 mBackground.setBounds(getScrollX(), 0, getScrollX() + getMeasuredWidth(), 1740 getMeasuredHeight()); 1741 mBackground.draw(canvas); 1742 } 1743 1744 super.onDraw(canvas); 1745 1746 // Call back to LauncherModel to finish binding after the first draw 1747 post(mBindPages); 1748 } 1749 1750 boolean isDrawingBackgroundGradient() { 1751 return (mBackground != null && mBackgroundAlpha > 0.0f && mDrawBackground); 1752 } 1753 1754 @Override 1755 protected boolean onRequestFocusInDescendants(int direction, Rect previouslyFocusedRect) { 1756 if (!mLauncher.isAllAppsVisible()) { 1757 final Folder openFolder = getOpenFolder(); 1758 if (openFolder != null) { 1759 return openFolder.requestFocus(direction, previouslyFocusedRect); 1760 } else { 1761 return super.onRequestFocusInDescendants(direction, previouslyFocusedRect); 1762 } 1763 } 1764 return false; 1765 } 1766 1767 @Override 1768 public int getDescendantFocusability() { 1769 if (isSmall()) { 1770 return ViewGroup.FOCUS_BLOCK_DESCENDANTS; 1771 } 1772 return super.getDescendantFocusability(); 1773 } 1774 1775 @Override 1776 public void addFocusables(ArrayList<View> views, int direction, int focusableMode) { 1777 if (!mLauncher.isAllAppsVisible()) { 1778 final Folder openFolder = getOpenFolder(); 1779 if (openFolder != null) { 1780 openFolder.addFocusables(views, direction); 1781 } else { 1782 super.addFocusables(views, direction, focusableMode); 1783 } 1784 } 1785 } 1786 1787 public boolean isSmall() { 1788 return mState == State.SMALL || mState == State.SPRING_LOADED || mState == State.OVERVIEW; 1789 } 1790 1791 void enableChildrenCache(int fromPage, int toPage) { 1792 if (fromPage > toPage) { 1793 final int temp = fromPage; 1794 fromPage = toPage; 1795 toPage = temp; 1796 } 1797 1798 final int screenCount = getChildCount(); 1799 1800 fromPage = Math.max(fromPage, 0); 1801 toPage = Math.min(toPage, screenCount - 1); 1802 1803 for (int i = fromPage; i <= toPage; i++) { 1804 final CellLayout layout = (CellLayout) getChildAt(i); 1805 layout.setChildrenDrawnWithCacheEnabled(true); 1806 layout.setChildrenDrawingCacheEnabled(true); 1807 } 1808 } 1809 1810 void clearChildrenCache() { 1811 final int screenCount = getChildCount(); 1812 for (int i = 0; i < screenCount; i++) { 1813 final CellLayout layout = (CellLayout) getChildAt(i); 1814 layout.setChildrenDrawnWithCacheEnabled(false); 1815 // In software mode, we don't want the items to continue to be drawn into bitmaps 1816 if (!isHardwareAccelerated()) { 1817 layout.setChildrenDrawingCacheEnabled(false); 1818 } 1819 } 1820 } 1821 1822 private void updateChildrenLayersEnabled(boolean force) { 1823 boolean small = mState == State.SMALL || mState == State.OVERVIEW || mIsSwitchingState; 1824 boolean enableChildrenLayers = force || small || mAnimatingViewIntoPlace || isPageMoving(); 1825 1826 if (enableChildrenLayers != mChildrenLayersEnabled) { 1827 mChildrenLayersEnabled = enableChildrenLayers; 1828 if (mChildrenLayersEnabled) { 1829 enableHwLayersOnVisiblePages(); 1830 } else { 1831 for (int i = 0; i < getPageCount(); i++) { 1832 final CellLayout cl = (CellLayout) getChildAt(i); 1833 cl.enableHardwareLayer(false); 1834 } 1835 } 1836 } 1837 } 1838 1839 private void enableHwLayersOnVisiblePages() { 1840 if (mChildrenLayersEnabled) { 1841 final int screenCount = getChildCount(); 1842 getVisiblePages(mTempVisiblePagesRange); 1843 int leftScreen = mTempVisiblePagesRange[0]; 1844 int rightScreen = mTempVisiblePagesRange[1]; 1845 if (leftScreen == rightScreen) { 1846 // make sure we're caching at least two pages always 1847 if (rightScreen < screenCount - 1) { 1848 rightScreen++; 1849 } else if (leftScreen > 0) { 1850 leftScreen--; 1851 } 1852 } 1853 1854 final CellLayout customScreen = mWorkspaceScreens.get(CUSTOM_CONTENT_SCREEN_ID); 1855 for (int i = 0; i < screenCount; i++) { 1856 final CellLayout layout = (CellLayout) getPageAt(i); 1857 1858 // enable layers between left and right screen inclusive, except for the 1859 // customScreen, which may animate its content during transitions. 1860 boolean enableLayer = layout != customScreen && 1861 leftScreen <= i && i <= rightScreen && shouldDrawChild(layout); 1862 layout.enableHardwareLayer(enableLayer); 1863 } 1864 } 1865 } 1866 1867 public void buildPageHardwareLayers() { 1868 // force layers to be enabled just for the call to buildLayer 1869 updateChildrenLayersEnabled(true); 1870 if (getWindowToken() != null) { 1871 final int childCount = getChildCount(); 1872 for (int i = 0; i < childCount; i++) { 1873 CellLayout cl = (CellLayout) getChildAt(i); 1874 cl.buildHardwareLayer(); 1875 } 1876 } 1877 updateChildrenLayersEnabled(false); 1878 } 1879 1880 protected void onWallpaperTap(MotionEvent ev) { 1881 final int[] position = mTempCell; 1882 getLocationOnScreen(position); 1883 1884 int pointerIndex = ev.getActionIndex(); 1885 position[0] += (int) ev.getX(pointerIndex); 1886 position[1] += (int) ev.getY(pointerIndex); 1887 1888 mWallpaperManager.sendWallpaperCommand(getWindowToken(), 1889 ev.getAction() == MotionEvent.ACTION_UP 1890 ? WallpaperManager.COMMAND_TAP : WallpaperManager.COMMAND_SECONDARY_TAP, 1891 position[0], position[1], 0, null); 1892 } 1893 1894 /* 1895 * This interpolator emulates the rate at which the perceived scale of an object changes 1896 * as its distance from a camera increases. When this interpolator is applied to a scale 1897 * animation on a view, it evokes the sense that the object is shrinking due to moving away 1898 * from the camera. 1899 */ 1900 static class ZInterpolator implements TimeInterpolator { 1901 private float focalLength; 1902 1903 public ZInterpolator(float foc) { 1904 focalLength = foc; 1905 } 1906 1907 public float getInterpolation(float input) { 1908 return (1.0f - focalLength / (focalLength + input)) / 1909 (1.0f - focalLength / (focalLength + 1.0f)); 1910 } 1911 } 1912 1913 /* 1914 * The exact reverse of ZInterpolator. 1915 */ 1916 static class InverseZInterpolator implements TimeInterpolator { 1917 private ZInterpolator zInterpolator; 1918 public InverseZInterpolator(float foc) { 1919 zInterpolator = new ZInterpolator(foc); 1920 } 1921 public float getInterpolation(float input) { 1922 return 1 - zInterpolator.getInterpolation(1 - input); 1923 } 1924 } 1925 1926 /* 1927 * ZInterpolator compounded with an ease-out. 1928 */ 1929 static class ZoomOutInterpolator implements TimeInterpolator { 1930 private final DecelerateInterpolator decelerate = new DecelerateInterpolator(0.75f); 1931 private final ZInterpolator zInterpolator = new ZInterpolator(0.13f); 1932 1933 public float getInterpolation(float input) { 1934 return decelerate.getInterpolation(zInterpolator.getInterpolation(input)); 1935 } 1936 } 1937 1938 /* 1939 * InvereZInterpolator compounded with an ease-out. 1940 */ 1941 static class ZoomInInterpolator implements TimeInterpolator { 1942 private final InverseZInterpolator inverseZInterpolator = new InverseZInterpolator(0.35f); 1943 private final DecelerateInterpolator decelerate = new DecelerateInterpolator(3.0f); 1944 1945 public float getInterpolation(float input) { 1946 return decelerate.getInterpolation(inverseZInterpolator.getInterpolation(input)); 1947 } 1948 } 1949 1950 private final ZoomInInterpolator mZoomInInterpolator = new ZoomInInterpolator(); 1951 1952 /* 1953 * 1954 * We call these methods (onDragStartedWithItemSpans/onDragStartedWithSize) whenever we 1955 * start a drag in Launcher, regardless of whether the drag has ever entered the Workspace 1956 * 1957 * These methods mark the appropriate pages as accepting drops (which alters their visual 1958 * appearance). 1959 * 1960 */ 1961 public void onDragStartedWithItem(View v) { 1962 final Canvas canvas = new Canvas(); 1963 1964 // The outline is used to visualize where the item will land if dropped 1965 mDragOutline = createDragOutline(v, canvas, DRAG_BITMAP_PADDING); 1966 } 1967 1968 public void onDragStartedWithItem(PendingAddItemInfo info, Bitmap b, boolean clipAlpha) { 1969 final Canvas canvas = new Canvas(); 1970 1971 int[] size = estimateItemSize(info.spanX, info.spanY, info, false); 1972 1973 // The outline is used to visualize where the item will land if dropped 1974 mDragOutline = createDragOutline(b, canvas, DRAG_BITMAP_PADDING, size[0], 1975 size[1], clipAlpha); 1976 } 1977 1978 public void exitWidgetResizeMode() { 1979 DragLayer dragLayer = mLauncher.getDragLayer(); 1980 dragLayer.clearAllResizeFrames(); 1981 } 1982 1983 private void initAnimationArrays() { 1984 final int childCount = getChildCount(); 1985 if (mLastChildCount == childCount) return; 1986 1987 mOldBackgroundAlphas = new float[childCount]; 1988 mOldAlphas = new float[childCount]; 1989 mNewBackgroundAlphas = new float[childCount]; 1990 mNewAlphas = new float[childCount]; 1991 } 1992 1993 Animator getChangeStateAnimation(final State state, boolean animated) { 1994 return getChangeStateAnimation(state, animated, 0, -1); 1995 } 1996 1997 @Override 1998 protected void getOverviewModePages(int[] range) { 1999 int start = numCustomPages(); 2000 int end = getChildCount() - 1; 2001 2002 range[0] = Math.max(0, Math.min(start, getChildCount() - 1)); 2003 range[1] = Math.max(0, end); 2004 } 2005 2006 protected void onStartReordering() { 2007 super.onStartReordering(); 2008 showOutlines(); 2009 // Reordering handles its own animations, disable the automatic ones. 2010 disableLayoutTransitions(); 2011 } 2012 2013 protected void onEndReordering() { 2014 super.onEndReordering(); 2015 2016 hideOutlines(); 2017 mScreenOrder.clear(); 2018 int count = getChildCount(); 2019 for (int i = 0; i < count; i++) { 2020 CellLayout cl = ((CellLayout) getChildAt(i)); 2021 mScreenOrder.add(getIdForScreen(cl)); 2022 } 2023 2024 mLauncher.getModel().updateWorkspaceScreenOrder(mLauncher, mScreenOrder); 2025 2026 // Re-enable auto layout transitions for page deletion. 2027 enableLayoutTransitions(); 2028 } 2029 2030 public boolean isInOverviewMode() { 2031 return mState == State.OVERVIEW; 2032 } 2033 2034 public boolean enterOverviewMode() { 2035 if (mTouchState != TOUCH_STATE_REST) { 2036 return false; 2037 } 2038 enableOverviewMode(true, -1, true); 2039 return true; 2040 } 2041 2042 public void exitOverviewMode(boolean animated) { 2043 exitOverviewMode(-1, animated); 2044 } 2045 2046 public void exitOverviewMode(int snapPage, boolean animated) { 2047 enableOverviewMode(false, snapPage, animated); 2048 } 2049 2050 private void enableOverviewMode(boolean enable, int snapPage, boolean animated) { 2051 State finalState = Workspace.State.OVERVIEW; 2052 if (!enable) { 2053 finalState = Workspace.State.NORMAL; 2054 } 2055 2056 Animator workspaceAnim = getChangeStateAnimation(finalState, animated, 0, snapPage); 2057 if (workspaceAnim != null) { 2058 onTransitionPrepare(); 2059 workspaceAnim.addListener(new AnimatorListenerAdapter() { 2060 @Override 2061 public void onAnimationEnd(Animator arg0) { 2062 onTransitionEnd(); 2063 } 2064 }); 2065 workspaceAnim.start(); 2066 } 2067 } 2068 2069 int getOverviewModeTranslationY() { 2070 LauncherAppState app = LauncherAppState.getInstance(); 2071 DeviceProfile grid = app.getDynamicGrid().getDeviceProfile(); 2072 Rect overviewBar = grid.getOverviewModeButtonBarRect(); 2073 2074 int availableHeight = getViewportHeight(); 2075 int scaledHeight = (int) (mOverviewModeShrinkFactor * getNormalChildHeight()); 2076 int offsetFromTopEdge = (availableHeight - scaledHeight) / 2; 2077 int offsetToCenterInOverview = (availableHeight - mInsets.top - overviewBar.height() 2078 - scaledHeight) / 2; 2079 2080 return -offsetFromTopEdge + mInsets.top + offsetToCenterInOverview; 2081 } 2082 2083 boolean shouldVoiceButtonProxyBeVisible() { 2084 if (isOnOrMovingToCustomContent()) { 2085 return false; 2086 } 2087 if (mState != State.NORMAL) { 2088 return false; 2089 } 2090 return true; 2091 } 2092 2093 public void updateInteractionForState() { 2094 if (mState != State.NORMAL) { 2095 mLauncher.onInteractionBegin(); 2096 } else { 2097 mLauncher.onInteractionEnd(); 2098 } 2099 } 2100 2101 private void setState(State state) { 2102 mState = state; 2103 updateInteractionForState(); 2104 updateAccessibilityFlags(); 2105 } 2106 2107 private void updateAccessibilityFlags() { 2108 int accessible = mState == State.NORMAL ? 2109 ViewCompat.IMPORTANT_FOR_ACCESSIBILITY_YES : 2110 ViewCompat.IMPORTANT_FOR_ACCESSIBILITY_NO_HIDE_DESCENDANTS; 2111 setImportantForAccessibility(accessible); 2112 } 2113 2114 Animator getChangeStateAnimation(final State state, boolean animated, int delay, int snapPage) { 2115 if (mState == state) { 2116 return null; 2117 } 2118 2119 // Initialize animation arrays for the first time if necessary 2120 initAnimationArrays(); 2121 2122 AnimatorSet anim = animated ? LauncherAnimUtils.createAnimatorSet() : null; 2123 2124 final State oldState = mState; 2125 final boolean oldStateIsNormal = (oldState == State.NORMAL); 2126 final boolean oldStateIsSpringLoaded = (oldState == State.SPRING_LOADED); 2127 final boolean oldStateIsSmall = (oldState == State.SMALL); 2128 final boolean oldStateIsOverview = (oldState == State.OVERVIEW); 2129 setState(state); 2130 final boolean stateIsNormal = (state == State.NORMAL); 2131 final boolean stateIsSpringLoaded = (state == State.SPRING_LOADED); 2132 final boolean stateIsSmall = (state == State.SMALL); 2133 final boolean stateIsOverview = (state == State.OVERVIEW); 2134 float finalBackgroundAlpha = (stateIsSpringLoaded || stateIsOverview) ? 1.0f : 0f; 2135 float finalHotseatAndPageIndicatorAlpha = (stateIsOverview || stateIsSmall) ? 0f : 1f; 2136 float finalOverviewPanelAlpha = stateIsOverview ? 1f : 0f; 2137 float finalSearchBarAlpha = !stateIsNormal ? 0f : 1f; 2138 float finalWorkspaceTranslationY = stateIsOverview ? getOverviewModeTranslationY() : 0; 2139 2140 boolean workspaceToAllApps = (oldStateIsNormal && stateIsSmall); 2141 boolean allAppsToWorkspace = (oldStateIsSmall && stateIsNormal); 2142 boolean workspaceToOverview = (oldStateIsNormal && stateIsOverview); 2143 boolean overviewToWorkspace = (oldStateIsOverview && stateIsNormal); 2144 2145 mNewScale = 1.0f; 2146 2147 if (oldStateIsOverview) { 2148 disableFreeScroll(); 2149 } else if (stateIsOverview) { 2150 enableFreeScroll(); 2151 } 2152 2153 if (state != State.NORMAL) { 2154 if (stateIsSpringLoaded) { 2155 mNewScale = mSpringLoadedShrinkFactor; 2156 } else if (stateIsOverview) { 2157 mNewScale = mOverviewModeShrinkFactor; 2158 } else if (stateIsSmall){ 2159 mNewScale = mOverviewModeShrinkFactor - 0.3f; 2160 } 2161 if (workspaceToAllApps) { 2162 updateChildrenLayersEnabled(false); 2163 } 2164 } 2165 2166 final int duration; 2167 if (workspaceToAllApps) { 2168 duration = getResources().getInteger(R.integer.config_workspaceUnshrinkTime); 2169 } else if (workspaceToOverview || overviewToWorkspace) { 2170 duration = getResources().getInteger(R.integer.config_overviewTransitionTime); 2171 } else { 2172 duration = getResources().getInteger(R.integer.config_appsCustomizeWorkspaceShrinkTime); 2173 } 2174 2175 if (snapPage == -1) { 2176 snapPage = getPageNearestToCenterOfScreen(); 2177 } 2178 snapToPage(snapPage, duration, mZoomInInterpolator); 2179 2180 for (int i = 0; i < getChildCount(); i++) { 2181 final CellLayout cl = (CellLayout) getChildAt(i); 2182 boolean isCurrentPage = (i == snapPage); 2183 float initialAlpha = cl.getShortcutsAndWidgets().getAlpha(); 2184 float finalAlpha; 2185 if (stateIsSmall) { 2186 finalAlpha = 0f; 2187 } else if (stateIsNormal && mWorkspaceFadeInAdjacentScreens) { 2188 finalAlpha = (i == snapPage || i < numCustomPages()) ? 1f : 0f; 2189 } else { 2190 finalAlpha = 1f; 2191 } 2192 2193 // If we are animating to/from the small state, then hide the side pages and fade the 2194 // current page in 2195 if (!mIsSwitchingState) { 2196 if (workspaceToAllApps || allAppsToWorkspace) { 2197 if (allAppsToWorkspace && isCurrentPage) { 2198 initialAlpha = 0f; 2199 } else if (!isCurrentPage) { 2200 initialAlpha = finalAlpha = 0f; 2201 } 2202 cl.setShortcutAndWidgetAlpha(initialAlpha); 2203 } 2204 } 2205 2206 mOldAlphas[i] = initialAlpha; 2207 mNewAlphas[i] = finalAlpha; 2208 if (animated) { 2209 mOldBackgroundAlphas[i] = cl.getBackgroundAlpha(); 2210 mNewBackgroundAlphas[i] = finalBackgroundAlpha; 2211 } else { 2212 cl.setBackgroundAlpha(finalBackgroundAlpha); 2213 cl.setShortcutAndWidgetAlpha(finalAlpha); 2214 } 2215 } 2216 2217 final View searchBar = mLauncher.getQsbBar(); 2218 final View overviewPanel = mLauncher.getOverviewPanel(); 2219 final View hotseat = mLauncher.getHotseat(); 2220 final View pageIndicator = getPageIndicator(); 2221 if (animated) { 2222 anim.setDuration(duration); 2223 LauncherViewPropertyAnimator scale = new LauncherViewPropertyAnimator(this); 2224 scale.scaleX(mNewScale) 2225 .scaleY(mNewScale) 2226 .translationY(finalWorkspaceTranslationY) 2227 .setInterpolator(mZoomInInterpolator); 2228 anim.play(scale); 2229 for (int index = 0; index < getChildCount(); index++) { 2230 final int i = index; 2231 final CellLayout cl = (CellLayout) getChildAt(i); 2232 float currentAlpha = cl.getShortcutsAndWidgets().getAlpha(); 2233 if (mOldAlphas[i] == 0 && mNewAlphas[i] == 0) { 2234 cl.setBackgroundAlpha(mNewBackgroundAlphas[i]); 2235 cl.setShortcutAndWidgetAlpha(mNewAlphas[i]); 2236 } else { 2237 if (mOldAlphas[i] != mNewAlphas[i] || currentAlpha != mNewAlphas[i]) { 2238 LauncherViewPropertyAnimator alphaAnim = 2239 new LauncherViewPropertyAnimator(cl.getShortcutsAndWidgets()); 2240 alphaAnim.alpha(mNewAlphas[i]) 2241 .setInterpolator(mZoomInInterpolator); 2242 anim.play(alphaAnim); 2243 } 2244 if (mOldBackgroundAlphas[i] != 0 || 2245 mNewBackgroundAlphas[i] != 0) { 2246 ValueAnimator bgAnim = 2247 LauncherAnimUtils.ofFloat(cl, 0f, 1f); 2248 bgAnim.setInterpolator(mZoomInInterpolator); 2249 bgAnim.addUpdateListener(new LauncherAnimatorUpdateListener() { 2250 public void onAnimationUpdate(float a, float b) { 2251 cl.setBackgroundAlpha( 2252 a * mOldBackgroundAlphas[i] + 2253 b * mNewBackgroundAlphas[i]); 2254 } 2255 }); 2256 anim.play(bgAnim); 2257 } 2258 } 2259 } 2260 Animator pageIndicatorAlpha = null; 2261 if (pageIndicator != null) { 2262 pageIndicatorAlpha = new LauncherViewPropertyAnimator(pageIndicator) 2263 .alpha(finalHotseatAndPageIndicatorAlpha).withLayer(); 2264 pageIndicatorAlpha.addListener(new AlphaUpdateListener(pageIndicator)); 2265 } else { 2266 // create a dummy animation so we don't need to do null checks later 2267 pageIndicatorAlpha = ValueAnimator.ofFloat(0, 0); 2268 } 2269 2270 Animator hotseatAlpha = new LauncherViewPropertyAnimator(hotseat) 2271 .alpha(finalHotseatAndPageIndicatorAlpha).withLayer(); 2272 hotseatAlpha.addListener(new AlphaUpdateListener(hotseat)); 2273 2274 Animator searchBarAlpha = new LauncherViewPropertyAnimator(searchBar) 2275 .alpha(finalSearchBarAlpha).withLayer(); 2276 searchBarAlpha.addListener(new AlphaUpdateListener(searchBar)); 2277 2278 Animator overviewPanelAlpha = new LauncherViewPropertyAnimator(overviewPanel) 2279 .alpha(finalOverviewPanelAlpha).withLayer(); 2280 overviewPanelAlpha.addListener(new AlphaUpdateListener(overviewPanel)); 2281 2282 if (workspaceToOverview) { 2283 pageIndicatorAlpha.setInterpolator(new DecelerateInterpolator(2)); 2284 hotseatAlpha.setInterpolator(new DecelerateInterpolator(2)); 2285 overviewPanelAlpha.setInterpolator(null); 2286 } else if (overviewToWorkspace) { 2287 pageIndicatorAlpha.setInterpolator(null); 2288 hotseatAlpha.setInterpolator(null); 2289 overviewPanelAlpha.setInterpolator(new DecelerateInterpolator(2)); 2290 } 2291 searchBarAlpha.setInterpolator(null); 2292 2293 anim.play(overviewPanelAlpha); 2294 anim.play(hotseatAlpha); 2295 anim.play(searchBarAlpha); 2296 anim.play(pageIndicatorAlpha); 2297 anim.setStartDelay(delay); 2298 } else { 2299 overviewPanel.setAlpha(finalOverviewPanelAlpha); 2300 AlphaUpdateListener.updateVisibility(overviewPanel); 2301 hotseat.setAlpha(finalHotseatAndPageIndicatorAlpha); 2302 AlphaUpdateListener.updateVisibility(hotseat); 2303 if (pageIndicator != null) { 2304 pageIndicator.setAlpha(finalHotseatAndPageIndicatorAlpha); 2305 AlphaUpdateListener.updateVisibility(pageIndicator); 2306 } 2307 searchBar.setAlpha(finalSearchBarAlpha); 2308 AlphaUpdateListener.updateVisibility(searchBar); 2309 updateCustomContentVisibility(); 2310 setScaleX(mNewScale); 2311 setScaleY(mNewScale); 2312 setTranslationY(finalWorkspaceTranslationY); 2313 } 2314 mLauncher.updateVoiceButtonProxyVisible(false); 2315 2316 if (stateIsSpringLoaded) { 2317 // Right now we're covered by Apps Customize 2318 // Show the background gradient immediately, so the gradient will 2319 // be showing once AppsCustomize disappears 2320 animateBackgroundGradient(getResources().getInteger( 2321 R.integer.config_appsCustomizeSpringLoadedBgAlpha) / 100f, false); 2322 } else if (stateIsOverview) { 2323 animateBackgroundGradient(getResources().getInteger( 2324 R.integer.config_appsCustomizeSpringLoadedBgAlpha) / 100f, true); 2325 } else { 2326 // Fade the background gradient away 2327 animateBackgroundGradient(0f, animated); 2328 } 2329 return anim; 2330 } 2331 2332 static class AlphaUpdateListener implements AnimatorUpdateListener, AnimatorListener { 2333 View view; 2334 public AlphaUpdateListener(View v) { 2335 view = v; 2336 } 2337 2338 @Override 2339 public void onAnimationUpdate(ValueAnimator arg0) { 2340 updateVisibility(view); 2341 } 2342 2343 public static void updateVisibility(View view) { 2344 // We want to avoid the extra layout pass by setting the views to GONE unless 2345 // accessibility is on, in which case not setting them to GONE causes a glitch. 2346 int invisibleState = sAccessibilityEnabled ? GONE : INVISIBLE; 2347 if (view.getAlpha() < ALPHA_CUTOFF_THRESHOLD && view.getVisibility() != invisibleState) { 2348 view.setVisibility(invisibleState); 2349 } else if (view.getAlpha() > ALPHA_CUTOFF_THRESHOLD 2350 && view.getVisibility() != VISIBLE) { 2351 view.setVisibility(VISIBLE); 2352 } 2353 } 2354 2355 @Override 2356 public void onAnimationCancel(Animator arg0) { 2357 } 2358 2359 @Override 2360 public void onAnimationEnd(Animator arg0) { 2361 updateVisibility(view); 2362 } 2363 2364 @Override 2365 public void onAnimationRepeat(Animator arg0) { 2366 } 2367 2368 @Override 2369 public void onAnimationStart(Animator arg0) { 2370 // We want the views to be visible for animation, so fade-in/out is visible 2371 view.setVisibility(VISIBLE); 2372 } 2373 } 2374 2375 @Override 2376 public void onLauncherTransitionPrepare(Launcher l, boolean animated, boolean toWorkspace) { 2377 onTransitionPrepare(); 2378 } 2379 2380 @Override 2381 public void onLauncherTransitionStart(Launcher l, boolean animated, boolean toWorkspace) { 2382 } 2383 2384 @Override 2385 public void onLauncherTransitionStep(Launcher l, float t) { 2386 mTransitionProgress = t; 2387 } 2388 2389 @Override 2390 public void onLauncherTransitionEnd(Launcher l, boolean animated, boolean toWorkspace) { 2391 onTransitionEnd(); 2392 } 2393 2394 private void onTransitionPrepare() { 2395 mIsSwitchingState = true; 2396 2397 // Invalidate here to ensure that the pages are rendered during the state change transition. 2398 invalidate(); 2399 2400 updateChildrenLayersEnabled(false); 2401 hideCustomContentIfNecessary(); 2402 } 2403 2404 void updateCustomContentVisibility() { 2405 int visibility = mState == Workspace.State.NORMAL ? VISIBLE : INVISIBLE; 2406 if (hasCustomContent()) { 2407 mWorkspaceScreens.get(CUSTOM_CONTENT_SCREEN_ID).setVisibility(visibility); 2408 } 2409 } 2410 2411 void showCustomContentIfNecessary() { 2412 boolean show = mState == Workspace.State.NORMAL; 2413 if (show && hasCustomContent()) { 2414 mWorkspaceScreens.get(CUSTOM_CONTENT_SCREEN_ID).setVisibility(VISIBLE); 2415 } 2416 } 2417 2418 void hideCustomContentIfNecessary() { 2419 boolean hide = mState != Workspace.State.NORMAL; 2420 if (hide && hasCustomContent()) { 2421 disableLayoutTransitions(); 2422 mWorkspaceScreens.get(CUSTOM_CONTENT_SCREEN_ID).setVisibility(INVISIBLE); 2423 enableLayoutTransitions(); 2424 } 2425 } 2426 2427 private void onTransitionEnd() { 2428 mIsSwitchingState = false; 2429 updateChildrenLayersEnabled(false); 2430 // The code in getChangeStateAnimation to determine initialAlpha and finalAlpha will ensure 2431 // ensure that only the current page is visible during (and subsequently, after) the 2432 // transition animation. If fade adjacent pages is disabled, then re-enable the page 2433 // visibility after the transition animation. 2434 if (!mWorkspaceFadeInAdjacentScreens) { 2435 for (int i = 0; i < getChildCount(); i++) { 2436 final CellLayout cl = (CellLayout) getChildAt(i); 2437 cl.setShortcutAndWidgetAlpha(1f); 2438 } 2439 } else { 2440 for (int i = 0; i < numCustomPages(); i++) { 2441 final CellLayout cl = (CellLayout) getChildAt(i); 2442 cl.setShortcutAndWidgetAlpha(1f); 2443 } 2444 } 2445 showCustomContentIfNecessary(); 2446 } 2447 2448 @Override 2449 public View getContent() { 2450 return this; 2451 } 2452 2453 /** 2454 * Draw the View v into the given Canvas. 2455 * 2456 * @param v the view to draw 2457 * @param destCanvas the canvas to draw on 2458 * @param padding the horizontal and vertical padding to use when drawing 2459 */ 2460 private void drawDragView(View v, Canvas destCanvas, int padding, boolean pruneToDrawable) { 2461 final Rect clipRect = mTempRect; 2462 v.getDrawingRect(clipRect); 2463 2464 boolean textVisible = false; 2465 2466 destCanvas.save(); 2467 if (v instanceof TextView && pruneToDrawable) { 2468 Drawable d = ((TextView) v).getCompoundDrawables()[1]; 2469 clipRect.set(0, 0, d.getIntrinsicWidth() + padding, d.getIntrinsicHeight() + padding); 2470 destCanvas.translate(padding / 2, padding / 2); 2471 d.draw(destCanvas); 2472 } else { 2473 if (v instanceof FolderIcon) { 2474 // For FolderIcons the text can bleed into the icon area, and so we need to 2475 // hide the text completely (which can't be achieved by clipping). 2476 if (((FolderIcon) v).getTextVisible()) { 2477 ((FolderIcon) v).setTextVisible(false); 2478 textVisible = true; 2479 } 2480 } else if (v instanceof BubbleTextView) { 2481 final BubbleTextView tv = (BubbleTextView) v; 2482 clipRect.bottom = tv.getExtendedPaddingTop() - (int) BubbleTextView.PADDING_V + 2483 tv.getLayout().getLineTop(0); 2484 } else if (v instanceof TextView) { 2485 final TextView tv = (TextView) v; 2486 clipRect.bottom = tv.getExtendedPaddingTop() - tv.getCompoundDrawablePadding() + 2487 tv.getLayout().getLineTop(0); 2488 } 2489 destCanvas.translate(-v.getScrollX() + padding / 2, -v.getScrollY() + padding / 2); 2490 destCanvas.clipRect(clipRect, Op.REPLACE); 2491 v.draw(destCanvas); 2492 2493 // Restore text visibility of FolderIcon if necessary 2494 if (textVisible) { 2495 ((FolderIcon) v).setTextVisible(true); 2496 } 2497 } 2498 destCanvas.restore(); 2499 } 2500 2501 /** 2502 * Returns a new bitmap to show when the given View is being dragged around. 2503 * Responsibility for the bitmap is transferred to the caller. 2504 */ 2505 public Bitmap createDragBitmap(View v, Canvas canvas, int padding) { 2506 Bitmap b; 2507 2508 if (v instanceof TextView) { 2509 Drawable d = ((TextView) v).getCompoundDrawables()[1]; 2510 b = Bitmap.createBitmap(d.getIntrinsicWidth() + padding, 2511 d.getIntrinsicHeight() + padding, Bitmap.Config.ARGB_8888); 2512 } else { 2513 b = Bitmap.createBitmap( 2514 v.getWidth() + padding, v.getHeight() + padding, Bitmap.Config.ARGB_8888); 2515 } 2516 2517 canvas.setBitmap(b); 2518 drawDragView(v, canvas, padding, true); 2519 canvas.setBitmap(null); 2520 2521 return b; 2522 } 2523 2524 /** 2525 * Returns a new bitmap to be used as the object outline, e.g. to visualize the drop location. 2526 * Responsibility for the bitmap is transferred to the caller. 2527 */ 2528 private Bitmap createDragOutline(View v, Canvas canvas, int padding) { 2529 final int outlineColor = getResources().getColor(R.color.outline_color); 2530 final Bitmap b = Bitmap.createBitmap( 2531 v.getWidth() + padding, v.getHeight() + padding, Bitmap.Config.ARGB_8888); 2532 2533 canvas.setBitmap(b); 2534 drawDragView(v, canvas, padding, true); 2535 mOutlineHelper.applyMediumExpensiveOutlineWithBlur(b, canvas, outlineColor, outlineColor); 2536 canvas.setBitmap(null); 2537 return b; 2538 } 2539 2540 /** 2541 * Returns a new bitmap to be used as the object outline, e.g. to visualize the drop location. 2542 * Responsibility for the bitmap is transferred to the caller. 2543 */ 2544 private Bitmap createDragOutline(Bitmap orig, Canvas canvas, int padding, int w, int h, 2545 boolean clipAlpha) { 2546 final int outlineColor = getResources().getColor(R.color.outline_color); 2547 final Bitmap b = Bitmap.createBitmap(w, h, Bitmap.Config.ARGB_8888); 2548 canvas.setBitmap(b); 2549 2550 Rect src = new Rect(0, 0, orig.getWidth(), orig.getHeight()); 2551 float scaleFactor = Math.min((w - padding) / (float) orig.getWidth(), 2552 (h - padding) / (float) orig.getHeight()); 2553 int scaledWidth = (int) (scaleFactor * orig.getWidth()); 2554 int scaledHeight = (int) (scaleFactor * orig.getHeight()); 2555 Rect dst = new Rect(0, 0, scaledWidth, scaledHeight); 2556 2557 // center the image 2558 dst.offset((w - scaledWidth) / 2, (h - scaledHeight) / 2); 2559 2560 canvas.drawBitmap(orig, src, dst, null); 2561 mOutlineHelper.applyMediumExpensiveOutlineWithBlur(b, canvas, outlineColor, outlineColor, 2562 clipAlpha); 2563 canvas.setBitmap(null); 2564 2565 return b; 2566 } 2567 2568 void startDrag(CellLayout.CellInfo cellInfo) { 2569 View child = cellInfo.cell; 2570 2571 // Make sure the drag was started by a long press as opposed to a long click. 2572 if (!child.isInTouchMode()) { 2573 return; 2574 } 2575 2576 mDragInfo = cellInfo; 2577 child.setVisibility(INVISIBLE); 2578 CellLayout layout = (CellLayout) child.getParent().getParent(); 2579 layout.prepareChildForDrag(child); 2580 2581 child.clearFocus(); 2582 child.setPressed(false); 2583 2584 final Canvas canvas = new Canvas(); 2585 2586 // The outline is used to visualize where the item will land if dropped 2587 mDragOutline = createDragOutline(child, canvas, DRAG_BITMAP_PADDING); 2588 beginDragShared(child, this); 2589 } 2590 2591 public void beginDragShared(View child, DragSource source) { 2592 // The drag bitmap follows the touch point around on the screen 2593 final Bitmap b = createDragBitmap(child, new Canvas(), DRAG_BITMAP_PADDING); 2594 2595 final int bmpWidth = b.getWidth(); 2596 final int bmpHeight = b.getHeight(); 2597 2598 float scale = mLauncher.getDragLayer().getLocationInDragLayer(child, mTempXY); 2599 int dragLayerX = 2600 Math.round(mTempXY[0] - (bmpWidth - scale * child.getWidth()) / 2); 2601 int dragLayerY = 2602 Math.round(mTempXY[1] - (bmpHeight - scale * bmpHeight) / 2 2603 - DRAG_BITMAP_PADDING / 2); 2604 2605 LauncherAppState app = LauncherAppState.getInstance(); 2606 DeviceProfile grid = app.getDynamicGrid().getDeviceProfile(); 2607 Point dragVisualizeOffset = null; 2608 Rect dragRect = null; 2609 if (child instanceof BubbleTextView || child instanceof PagedViewIcon) { 2610 int iconSize = grid.iconSizePx; 2611 int top = child.getPaddingTop(); 2612 int left = (bmpWidth - iconSize) / 2; 2613 int right = left + iconSize; 2614 int bottom = top + iconSize; 2615 dragLayerY += top; 2616 // Note: The drag region is used to calculate drag layer offsets, but the 2617 // dragVisualizeOffset in addition to the dragRect (the size) to position the outline. 2618 dragVisualizeOffset = new Point(-DRAG_BITMAP_PADDING / 2, DRAG_BITMAP_PADDING / 2); 2619 dragRect = new Rect(left, top, right, bottom); 2620 } else if (child instanceof FolderIcon) { 2621 int previewSize = grid.folderIconSizePx; 2622 dragRect = new Rect(0, child.getPaddingTop(), child.getWidth(), previewSize); 2623 } 2624 2625 // Clear the pressed state if necessary 2626 if (child instanceof BubbleTextView) { 2627 BubbleTextView icon = (BubbleTextView) child; 2628 icon.clearPressedOrFocusedBackground(); 2629 } 2630 2631 if (child.getTag() == null || !(child.getTag() instanceof ItemInfo)) { 2632 String msg = "Drag started with a view that has no tag set. This " 2633 + "will cause a crash (issue 11627249) down the line. " 2634 + "View: " + child + " tag: " + child.getTag(); 2635 throw new IllegalStateException(msg); 2636 } 2637 2638 DragView dv = mDragController.startDrag(b, dragLayerX, dragLayerY, source, child.getTag(), 2639 DragController.DRAG_ACTION_MOVE, dragVisualizeOffset, dragRect, scale); 2640 dv.setIntrinsicIconScaleFactor(source.getIntrinsicIconScaleFactor()); 2641 2642 if (child.getParent() instanceof ShortcutAndWidgetContainer) { 2643 mDragSourceInternal = (ShortcutAndWidgetContainer) child.getParent(); 2644 } 2645 2646 b.recycle(); 2647 } 2648 2649 void addApplicationShortcut(ShortcutInfo info, CellLayout target, long container, long screenId, 2650 int cellX, int cellY, boolean insertAtFirst, int intersectX, int intersectY) { 2651 View view = mLauncher.createShortcut(R.layout.application, target, (ShortcutInfo) info); 2652 2653 final int[] cellXY = new int[2]; 2654 target.findCellForSpanThatIntersects(cellXY, 1, 1, intersectX, intersectY); 2655 addInScreen(view, container, screenId, cellXY[0], cellXY[1], 1, 1, insertAtFirst); 2656 2657 LauncherModel.addOrMoveItemInDatabase(mLauncher, info, container, screenId, cellXY[0], 2658 cellXY[1]); 2659 } 2660 2661 public boolean transitionStateShouldAllowDrop() { 2662 return ((!isSwitchingState() || mTransitionProgress > 0.5f) && mState != State.SMALL); 2663 } 2664 2665 /** 2666 * {@inheritDoc} 2667 */ 2668 public boolean acceptDrop(DragObject d) { 2669 // If it's an external drop (e.g. from All Apps), check if it should be accepted 2670 CellLayout dropTargetLayout = mDropToLayout; 2671 if (d.dragSource != this) { 2672 // Don't accept the drop if we're not over a screen at time of drop 2673 if (dropTargetLayout == null) { 2674 return false; 2675 } 2676 if (!transitionStateShouldAllowDrop()) return false; 2677 2678 mDragViewVisualCenter = getDragViewVisualCenter(d.x, d.y, d.xOffset, d.yOffset, 2679 d.dragView, mDragViewVisualCenter); 2680 2681 // We want the point to be mapped to the dragTarget. 2682 if (mLauncher.isHotseatLayout(dropTargetLayout)) { 2683 mapPointFromSelfToHotseatLayout(mLauncher.getHotseat(), mDragViewVisualCenter); 2684 } else { 2685 mapPointFromSelfToChild(dropTargetLayout, mDragViewVisualCenter, null); 2686 } 2687 2688 int spanX = 1; 2689 int spanY = 1; 2690 if (mDragInfo != null) { 2691 final CellLayout.CellInfo dragCellInfo = mDragInfo; 2692 spanX = dragCellInfo.spanX; 2693 spanY = dragCellInfo.spanY; 2694 } else { 2695 final ItemInfo dragInfo = (ItemInfo) d.dragInfo; 2696 spanX = dragInfo.spanX; 2697 spanY = dragInfo.spanY; 2698 } 2699 2700 int minSpanX = spanX; 2701 int minSpanY = spanY; 2702 if (d.dragInfo instanceof PendingAddWidgetInfo) { 2703 minSpanX = ((PendingAddWidgetInfo) d.dragInfo).minSpanX; 2704 minSpanY = ((PendingAddWidgetInfo) d.dragInfo).minSpanY; 2705 } 2706 2707 mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], 2708 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, dropTargetLayout, 2709 mTargetCell); 2710 float distance = dropTargetLayout.getDistanceFromCell(mDragViewVisualCenter[0], 2711 mDragViewVisualCenter[1], mTargetCell); 2712 if (willCreateUserFolder((ItemInfo) d.dragInfo, dropTargetLayout, 2713 mTargetCell, distance, true)) { 2714 return true; 2715 } 2716 if (willAddToExistingUserFolder((ItemInfo) d.dragInfo, dropTargetLayout, 2717 mTargetCell, distance)) { 2718 return true; 2719 } 2720 2721 int[] resultSpan = new int[2]; 2722 mTargetCell = dropTargetLayout.performReorder((int) mDragViewVisualCenter[0], 2723 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, spanX, spanY, 2724 null, mTargetCell, resultSpan, CellLayout.MODE_ACCEPT_DROP); 2725 boolean foundCell = mTargetCell[0] >= 0 && mTargetCell[1] >= 0; 2726 2727 // Don't accept the drop if there's no room for the item 2728 if (!foundCell) { 2729 // Don't show the message if we are dropping on the AllApps button and the hotseat 2730 // is full 2731 boolean isHotseat = mLauncher.isHotseatLayout(dropTargetLayout); 2732 if (mTargetCell != null && isHotseat) { 2733 Hotseat hotseat = mLauncher.getHotseat(); 2734 if (hotseat.isAllAppsButtonRank( 2735 hotseat.getOrderInHotseat(mTargetCell[0], mTargetCell[1]))) { 2736 return false; 2737 } 2738 } 2739 2740 mLauncher.showOutOfSpaceMessage(isHotseat); 2741 return false; 2742 } 2743 } 2744 2745 long screenId = getIdForScreen(dropTargetLayout); 2746 if (screenId == EXTRA_EMPTY_SCREEN_ID) { 2747 commitExtraEmptyScreen(); 2748 } 2749 2750 return true; 2751 } 2752 2753 boolean willCreateUserFolder(ItemInfo info, CellLayout target, int[] targetCell, float 2754 distance, boolean considerTimeout) { 2755 if (distance > mMaxDistanceForFolderCreation) return false; 2756 View dropOverView = target.getChildAt(targetCell[0], targetCell[1]); 2757 2758 if (dropOverView != null) { 2759 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) dropOverView.getLayoutParams(); 2760 if (lp.useTmpCoords && (lp.tmpCellX != lp.cellX || lp.tmpCellY != lp.tmpCellY)) { 2761 return false; 2762 } 2763 } 2764 2765 boolean hasntMoved = false; 2766 if (mDragInfo != null) { 2767 hasntMoved = dropOverView == mDragInfo.cell; 2768 } 2769 2770 if (dropOverView == null || hasntMoved || (considerTimeout && !mCreateUserFolderOnDrop)) { 2771 return false; 2772 } 2773 2774 boolean aboveShortcut = (dropOverView.getTag() instanceof ShortcutInfo); 2775 boolean willBecomeShortcut = 2776 (info.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPLICATION || 2777 info.itemType == LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT); 2778 2779 return (aboveShortcut && willBecomeShortcut); 2780 } 2781 2782 boolean willAddToExistingUserFolder(Object dragInfo, CellLayout target, int[] targetCell, 2783 float distance) { 2784 if (distance > mMaxDistanceForFolderCreation) return false; 2785 View dropOverView = target.getChildAt(targetCell[0], targetCell[1]); 2786 2787 if (dropOverView != null) { 2788 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) dropOverView.getLayoutParams(); 2789 if (lp.useTmpCoords && (lp.tmpCellX != lp.cellX || lp.tmpCellY != lp.tmpCellY)) { 2790 return false; 2791 } 2792 } 2793 2794 if (dropOverView instanceof FolderIcon) { 2795 FolderIcon fi = (FolderIcon) dropOverView; 2796 if (fi.acceptDrop(dragInfo)) { 2797 return true; 2798 } 2799 } 2800 return false; 2801 } 2802 2803 boolean createUserFolderIfNecessary(View newView, long container, CellLayout target, 2804 int[] targetCell, float distance, boolean external, DragView dragView, 2805 Runnable postAnimationRunnable) { 2806 if (distance > mMaxDistanceForFolderCreation) return false; 2807 View v = target.getChildAt(targetCell[0], targetCell[1]); 2808 2809 boolean hasntMoved = false; 2810 if (mDragInfo != null) { 2811 CellLayout cellParent = getParentCellLayoutForView(mDragInfo.cell); 2812 hasntMoved = (mDragInfo.cellX == targetCell[0] && 2813 mDragInfo.cellY == targetCell[1]) && (cellParent == target); 2814 } 2815 2816 if (v == null || hasntMoved || !mCreateUserFolderOnDrop) return false; 2817 mCreateUserFolderOnDrop = false; 2818 final long screenId = (targetCell == null) ? mDragInfo.screenId : getIdForScreen(target); 2819 2820 boolean aboveShortcut = (v.getTag() instanceof ShortcutInfo); 2821 boolean willBecomeShortcut = (newView.getTag() instanceof ShortcutInfo); 2822 2823 if (aboveShortcut && willBecomeShortcut) { 2824 ShortcutInfo sourceInfo = (ShortcutInfo) newView.getTag(); 2825 ShortcutInfo destInfo = (ShortcutInfo) v.getTag(); 2826 // if the drag started here, we need to remove it from the workspace 2827 if (!external) { 2828 getParentCellLayoutForView(mDragInfo.cell).removeView(mDragInfo.cell); 2829 } 2830 2831 Rect folderLocation = new Rect(); 2832 float scale = mLauncher.getDragLayer().getDescendantRectRelativeToSelf(v, folderLocation); 2833 target.removeView(v); 2834 2835 FolderIcon fi = 2836 mLauncher.addFolder(target, container, screenId, targetCell[0], targetCell[1]); 2837 destInfo.cellX = -1; 2838 destInfo.cellY = -1; 2839 sourceInfo.cellX = -1; 2840 sourceInfo.cellY = -1; 2841 2842 // If the dragView is null, we can't animate 2843 boolean animate = dragView != null; 2844 if (animate) { 2845 fi.performCreateAnimation(destInfo, v, sourceInfo, dragView, folderLocation, scale, 2846 postAnimationRunnable); 2847 } else { 2848 fi.addItem(destInfo); 2849 fi.addItem(sourceInfo); 2850 } 2851 return true; 2852 } 2853 return false; 2854 } 2855 2856 boolean addToExistingFolderIfNecessary(View newView, CellLayout target, int[] targetCell, 2857 float distance, DragObject d, boolean external) { 2858 if (distance > mMaxDistanceForFolderCreation) return false; 2859 2860 View dropOverView = target.getChildAt(targetCell[0], targetCell[1]); 2861 if (!mAddToExistingFolderOnDrop) return false; 2862 mAddToExistingFolderOnDrop = false; 2863 2864 if (dropOverView instanceof FolderIcon) { 2865 FolderIcon fi = (FolderIcon) dropOverView; 2866 if (fi.acceptDrop(d.dragInfo)) { 2867 fi.onDrop(d); 2868 2869 // if the drag started here, we need to remove it from the workspace 2870 if (!external) { 2871 getParentCellLayoutForView(mDragInfo.cell).removeView(mDragInfo.cell); 2872 } 2873 return true; 2874 } 2875 } 2876 return false; 2877 } 2878 2879 public void onDrop(final DragObject d) { 2880 mDragViewVisualCenter = getDragViewVisualCenter(d.x, d.y, d.xOffset, d.yOffset, d.dragView, 2881 mDragViewVisualCenter); 2882 2883 CellLayout dropTargetLayout = mDropToLayout; 2884 2885 // We want the point to be mapped to the dragTarget. 2886 if (dropTargetLayout != null) { 2887 if (mLauncher.isHotseatLayout(dropTargetLayout)) { 2888 mapPointFromSelfToHotseatLayout(mLauncher.getHotseat(), mDragViewVisualCenter); 2889 } else { 2890 mapPointFromSelfToChild(dropTargetLayout, mDragViewVisualCenter, null); 2891 } 2892 } 2893 2894 int snapScreen = -1; 2895 boolean resizeOnDrop = false; 2896 if (d.dragSource != this) { 2897 final int[] touchXY = new int[] { (int) mDragViewVisualCenter[0], 2898 (int) mDragViewVisualCenter[1] }; 2899 onDropExternal(touchXY, d.dragInfo, dropTargetLayout, false, d); 2900 } else if (mDragInfo != null) { 2901 final View cell = mDragInfo.cell; 2902 2903 Runnable resizeRunnable = null; 2904 if (dropTargetLayout != null && !d.cancelled) { 2905 // Move internally 2906 boolean hasMovedLayouts = (getParentCellLayoutForView(cell) != dropTargetLayout); 2907 boolean hasMovedIntoHotseat = mLauncher.isHotseatLayout(dropTargetLayout); 2908 long container = hasMovedIntoHotseat ? 2909 LauncherSettings.Favorites.CONTAINER_HOTSEAT : 2910 LauncherSettings.Favorites.CONTAINER_DESKTOP; 2911 long screenId = (mTargetCell[0] < 0) ? 2912 mDragInfo.screenId : getIdForScreen(dropTargetLayout); 2913 int spanX = mDragInfo != null ? mDragInfo.spanX : 1; 2914 int spanY = mDragInfo != null ? mDragInfo.spanY : 1; 2915 // First we find the cell nearest to point at which the item is 2916 // dropped, without any consideration to whether there is an item there. 2917 2918 mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], (int) 2919 mDragViewVisualCenter[1], spanX, spanY, dropTargetLayout, mTargetCell); 2920 float distance = dropTargetLayout.getDistanceFromCell(mDragViewVisualCenter[0], 2921 mDragViewVisualCenter[1], mTargetCell); 2922 2923 // If the item being dropped is a shortcut and the nearest drop 2924 // cell also contains a shortcut, then create a folder with the two shortcuts. 2925 if (!mInScrollArea && createUserFolderIfNecessary(cell, container, 2926 dropTargetLayout, mTargetCell, distance, false, d.dragView, null)) { 2927 removeExtraEmptyScreen(true, null, 0, true); 2928 return; 2929 } 2930 2931 if (addToExistingFolderIfNecessary(cell, dropTargetLayout, mTargetCell, 2932 distance, d, false)) { 2933 removeExtraEmptyScreen(true, null, 0, true); 2934 return; 2935 } 2936 2937 // Aside from the special case where we're dropping a shortcut onto a shortcut, 2938 // we need to find the nearest cell location that is vacant 2939 ItemInfo item = (ItemInfo) d.dragInfo; 2940 int minSpanX = item.spanX; 2941 int minSpanY = item.spanY; 2942 if (item.minSpanX > 0 && item.minSpanY > 0) { 2943 minSpanX = item.minSpanX; 2944 minSpanY = item.minSpanY; 2945 } 2946 2947 int[] resultSpan = new int[2]; 2948 mTargetCell = dropTargetLayout.performReorder((int) mDragViewVisualCenter[0], 2949 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, spanX, spanY, cell, 2950 mTargetCell, resultSpan, CellLayout.MODE_ON_DROP); 2951 2952 boolean foundCell = mTargetCell[0] >= 0 && mTargetCell[1] >= 0; 2953 2954 // if the widget resizes on drop 2955 if (foundCell && (cell instanceof AppWidgetHostView) && 2956 (resultSpan[0] != item.spanX || resultSpan[1] != item.spanY)) { 2957 resizeOnDrop = true; 2958 item.spanX = resultSpan[0]; 2959 item.spanY = resultSpan[1]; 2960 AppWidgetHostView awhv = (AppWidgetHostView) cell; 2961 AppWidgetResizeFrame.updateWidgetSizeRanges(awhv, mLauncher, resultSpan[0], 2962 resultSpan[1]); 2963 } 2964 2965 if (getScreenIdForPageIndex(mCurrentPage) != screenId && !hasMovedIntoHotseat) { 2966 snapScreen = getPageIndexForScreenId(screenId); 2967 snapToPage(snapScreen); 2968 } 2969 2970 if (foundCell) { 2971 final ItemInfo info = (ItemInfo) cell.getTag(); 2972 if (hasMovedLayouts) { 2973 // Reparent the view 2974 getParentCellLayoutForView(cell).removeView(cell); 2975 addInScreen(cell, container, screenId, mTargetCell[0], mTargetCell[1], 2976 info.spanX, info.spanY); 2977 } 2978 2979 // update the item's position after drop 2980 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) cell.getLayoutParams(); 2981 lp.cellX = lp.tmpCellX = mTargetCell[0]; 2982 lp.cellY = lp.tmpCellY = mTargetCell[1]; 2983 lp.cellHSpan = item.spanX; 2984 lp.cellVSpan = item.spanY; 2985 lp.isLockedToGrid = true; 2986 2987 if (container != LauncherSettings.Favorites.CONTAINER_HOTSEAT && 2988 cell instanceof LauncherAppWidgetHostView) { 2989 final CellLayout cellLayout = dropTargetLayout; 2990 // We post this call so that the widget has a chance to be placed 2991 // in its final location 2992 2993 final LauncherAppWidgetHostView hostView = (LauncherAppWidgetHostView) cell; 2994 AppWidgetProviderInfo pinfo = hostView.getAppWidgetInfo(); 2995 if (pinfo != null && 2996 pinfo.resizeMode != AppWidgetProviderInfo.RESIZE_NONE) { 2997 final Runnable addResizeFrame = new Runnable() { 2998 public void run() { 2999 DragLayer dragLayer = mLauncher.getDragLayer(); 3000 dragLayer.addResizeFrame(info, hostView, cellLayout); 3001 } 3002 }; 3003 resizeRunnable = (new Runnable() { 3004 public void run() { 3005 if (!isPageMoving()) { 3006 addResizeFrame.run(); 3007 } else { 3008 mDelayedResizeRunnable = addResizeFrame; 3009 } 3010 } 3011 }); 3012 } 3013 } 3014 3015 LauncherModel.modifyItemInDatabase(mLauncher, info, container, screenId, lp.cellX, 3016 lp.cellY, item.spanX, item.spanY); 3017 } else { 3018 // If we can't find a drop location, we return the item to its original position 3019 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) cell.getLayoutParams(); 3020 mTargetCell[0] = lp.cellX; 3021 mTargetCell[1] = lp.cellY; 3022 CellLayout layout = (CellLayout) cell.getParent().getParent(); 3023 layout.markCellsAsOccupiedForView(cell); 3024 } 3025 } 3026 3027 final CellLayout parent = (CellLayout) cell.getParent().getParent(); 3028 final Runnable finalResizeRunnable = resizeRunnable; 3029 // Prepare it to be animated into its new position 3030 // This must be called after the view has been re-parented 3031 final Runnable onCompleteRunnable = new Runnable() { 3032 @Override 3033 public void run() { 3034 mAnimatingViewIntoPlace = false; 3035 updateChildrenLayersEnabled(false); 3036 if (finalResizeRunnable != null) { 3037 finalResizeRunnable.run(); 3038 } 3039 removeExtraEmptyScreen(true, null, 0, true); 3040 } 3041 }; 3042 mAnimatingViewIntoPlace = true; 3043 if (d.dragView.hasDrawn()) { 3044 final ItemInfo info = (ItemInfo) cell.getTag(); 3045 if (info.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET) { 3046 int animationType = resizeOnDrop ? ANIMATE_INTO_POSITION_AND_RESIZE : 3047 ANIMATE_INTO_POSITION_AND_DISAPPEAR; 3048 animateWidgetDrop(info, parent, d.dragView, 3049 onCompleteRunnable, animationType, cell, false); 3050 } else { 3051 int duration = snapScreen < 0 ? -1 : ADJACENT_SCREEN_DROP_DURATION; 3052 mLauncher.getDragLayer().animateViewIntoPosition(d.dragView, cell, duration, 3053 onCompleteRunnable, this); 3054 } 3055 } else { 3056 d.deferDragViewCleanupPostAnimation = false; 3057 cell.setVisibility(VISIBLE); 3058 } 3059 parent.onDropChild(cell); 3060 } 3061 } 3062 3063 public void setFinalScrollForPageChange(int pageIndex) { 3064 CellLayout cl = (CellLayout) getChildAt(pageIndex); 3065 if (cl != null) { 3066 mSavedScrollX = getScrollX(); 3067 mSavedTranslationX = cl.getTranslationX(); 3068 mSavedRotationY = cl.getRotationY(); 3069 final int newX = getScrollForPage(pageIndex); 3070 setScrollX(newX); 3071 cl.setTranslationX(0f); 3072 cl.setRotationY(0f); 3073 } 3074 } 3075 3076 public void resetFinalScrollForPageChange(int pageIndex) { 3077 if (pageIndex >= 0) { 3078 CellLayout cl = (CellLayout) getChildAt(pageIndex); 3079 setScrollX(mSavedScrollX); 3080 cl.setTranslationX(mSavedTranslationX); 3081 cl.setRotationY(mSavedRotationY); 3082 } 3083 } 3084 3085 public void getViewLocationRelativeToSelf(View v, int[] location) { 3086 getLocationInWindow(location); 3087 int x = location[0]; 3088 int y = location[1]; 3089 3090 v.getLocationInWindow(location); 3091 int vX = location[0]; 3092 int vY = location[1]; 3093 3094 location[0] = vX - x; 3095 location[1] = vY - y; 3096 } 3097 3098 public void onDragEnter(DragObject d) { 3099 mDragEnforcer.onDragEnter(); 3100 mCreateUserFolderOnDrop = false; 3101 mAddToExistingFolderOnDrop = false; 3102 3103 mDropToLayout = null; 3104 CellLayout layout = getCurrentDropLayout(); 3105 setCurrentDropLayout(layout); 3106 setCurrentDragOverlappingLayout(layout); 3107 3108 // Because we don't have space in the Phone UI (the CellLayouts run to the edge) we 3109 // don't need to show the outlines 3110 if (LauncherAppState.getInstance().isScreenLarge()) { 3111 showOutlines(); 3112 } 3113 } 3114 3115 /** Return a rect that has the cellWidth/cellHeight (left, top), and 3116 * widthGap/heightGap (right, bottom) */ 3117 static Rect getCellLayoutMetrics(Launcher launcher, int orientation) { 3118 LauncherAppState app = LauncherAppState.getInstance(); 3119 DeviceProfile grid = app.getDynamicGrid().getDeviceProfile(); 3120 3121 Resources res = launcher.getResources(); 3122 Display display = launcher.getWindowManager().getDefaultDisplay(); 3123 Point smallestSize = new Point(); 3124 Point largestSize = new Point(); 3125 display.getCurrentSizeRange(smallestSize, largestSize); 3126 int countX = (int) grid.numColumns; 3127 int countY = (int) grid.numRows; 3128 if (orientation == CellLayout.LANDSCAPE) { 3129 if (mLandscapeCellLayoutMetrics == null) { 3130 Rect padding = grid.getWorkspacePadding(CellLayout.LANDSCAPE); 3131 int width = largestSize.x - padding.left - padding.right; 3132 int height = smallestSize.y - padding.top - padding.bottom; 3133 mLandscapeCellLayoutMetrics = new Rect(); 3134 mLandscapeCellLayoutMetrics.set( 3135 grid.calculateCellWidth(width, countX), 3136 grid.calculateCellHeight(height, countY), 0, 0); 3137 } 3138 return mLandscapeCellLayoutMetrics; 3139 } else if (orientation == CellLayout.PORTRAIT) { 3140 if (mPortraitCellLayoutMetrics == null) { 3141 Rect padding = grid.getWorkspacePadding(CellLayout.PORTRAIT); 3142 int width = smallestSize.x - padding.left - padding.right; 3143 int height = largestSize.y - padding.top - padding.bottom; 3144 mPortraitCellLayoutMetrics = new Rect(); 3145 mPortraitCellLayoutMetrics.set( 3146 grid.calculateCellWidth(width, countX), 3147 grid.calculateCellHeight(height, countY), 0, 0); 3148 } 3149 return mPortraitCellLayoutMetrics; 3150 } 3151 return null; 3152 } 3153 3154 public void onDragExit(DragObject d) { 3155 mDragEnforcer.onDragExit(); 3156 3157 // Here we store the final page that will be dropped to, if the workspace in fact 3158 // receives the drop 3159 if (mInScrollArea) { 3160 if (isPageMoving()) { 3161 // If the user drops while the page is scrolling, we should use that page as the 3162 // destination instead of the page that is being hovered over. 3163 mDropToLayout = (CellLayout) getPageAt(getNextPage()); 3164 } else { 3165 mDropToLayout = mDragOverlappingLayout; 3166 } 3167 } else { 3168 mDropToLayout = mDragTargetLayout; 3169 } 3170 3171 if (mDragMode == DRAG_MODE_CREATE_FOLDER) { 3172 mCreateUserFolderOnDrop = true; 3173 } else if (mDragMode == DRAG_MODE_ADD_TO_FOLDER) { 3174 mAddToExistingFolderOnDrop = true; 3175 } 3176 3177 // Reset the scroll area and previous drag target 3178 onResetScrollArea(); 3179 setCurrentDropLayout(null); 3180 setCurrentDragOverlappingLayout(null); 3181 3182 mSpringLoadedDragController.cancel(); 3183 3184 if (!mIsPageMoving) { 3185 hideOutlines(); 3186 } 3187 } 3188 3189 void setCurrentDropLayout(CellLayout layout) { 3190 if (mDragTargetLayout != null) { 3191 mDragTargetLayout.revertTempState(); 3192 mDragTargetLayout.onDragExit(); 3193 } 3194 mDragTargetLayout = layout; 3195 if (mDragTargetLayout != null) { 3196 mDragTargetLayout.onDragEnter(); 3197 } 3198 cleanupReorder(true); 3199 cleanupFolderCreation(); 3200 setCurrentDropOverCell(-1, -1); 3201 } 3202 3203 void setCurrentDragOverlappingLayout(CellLayout layout) { 3204 if (mDragOverlappingLayout != null) { 3205 mDragOverlappingLayout.setIsDragOverlapping(false); 3206 } 3207 mDragOverlappingLayout = layout; 3208 if (mDragOverlappingLayout != null) { 3209 mDragOverlappingLayout.setIsDragOverlapping(true); 3210 } 3211 invalidate(); 3212 } 3213 3214 void setCurrentDropOverCell(int x, int y) { 3215 if (x != mDragOverX || y != mDragOverY) { 3216 mDragOverX = x; 3217 mDragOverY = y; 3218 setDragMode(DRAG_MODE_NONE); 3219 } 3220 } 3221 3222 void setDragMode(int dragMode) { 3223 if (dragMode != mDragMode) { 3224 if (dragMode == DRAG_MODE_NONE) { 3225 cleanupAddToFolder(); 3226 // We don't want to cancel the re-order alarm every time the target cell changes 3227 // as this feels to slow / unresponsive. 3228 cleanupReorder(false); 3229 cleanupFolderCreation(); 3230 } else if (dragMode == DRAG_MODE_ADD_TO_FOLDER) { 3231 cleanupReorder(true); 3232 cleanupFolderCreation(); 3233 } else if (dragMode == DRAG_MODE_CREATE_FOLDER) { 3234 cleanupAddToFolder(); 3235 cleanupReorder(true); 3236 } else if (dragMode == DRAG_MODE_REORDER) { 3237 cleanupAddToFolder(); 3238 cleanupFolderCreation(); 3239 } 3240 mDragMode = dragMode; 3241 } 3242 } 3243 3244 private void cleanupFolderCreation() { 3245 if (mDragFolderRingAnimator != null) { 3246 mDragFolderRingAnimator.animateToNaturalState(); 3247 mDragFolderRingAnimator = null; 3248 } 3249 mFolderCreationAlarm.setOnAlarmListener(null); 3250 mFolderCreationAlarm.cancelAlarm(); 3251 } 3252 3253 private void cleanupAddToFolder() { 3254 if (mDragOverFolderIcon != null) { 3255 mDragOverFolderIcon.onDragExit(null); 3256 mDragOverFolderIcon = null; 3257 } 3258 } 3259 3260 private void cleanupReorder(boolean cancelAlarm) { 3261 // Any pending reorders are canceled 3262 if (cancelAlarm) { 3263 mReorderAlarm.cancelAlarm(); 3264 } 3265 mLastReorderX = -1; 3266 mLastReorderY = -1; 3267 } 3268 3269 /* 3270 * 3271 * Convert the 2D coordinate xy from the parent View's coordinate space to this CellLayout's 3272 * coordinate space. The argument xy is modified with the return result. 3273 * 3274 * if cachedInverseMatrix is not null, this method will just use that matrix instead of 3275 * computing it itself; we use this to avoid redundant matrix inversions in 3276 * findMatchingPageForDragOver 3277 * 3278 */ 3279 void mapPointFromSelfToChild(View v, float[] xy, Matrix cachedInverseMatrix) { 3280 xy[0] = xy[0] - v.getLeft(); 3281 xy[1] = xy[1] - v.getTop(); 3282 } 3283 3284 boolean isPointInSelfOverHotseat(int x, int y, Rect r) { 3285 if (r == null) { 3286 r = new Rect(); 3287 } 3288 mTempPt[0] = x; 3289 mTempPt[1] = y; 3290 mLauncher.getDragLayer().getDescendantCoordRelativeToSelf(this, mTempPt, true); 3291 3292 LauncherAppState app = LauncherAppState.getInstance(); 3293 DeviceProfile grid = app.getDynamicGrid().getDeviceProfile(); 3294 r = grid.getHotseatRect(); 3295 if (r.contains(mTempPt[0], mTempPt[1])) { 3296 return true; 3297 } 3298 return false; 3299 } 3300 3301 void mapPointFromSelfToHotseatLayout(Hotseat hotseat, float[] xy) { 3302 mTempPt[0] = (int) xy[0]; 3303 mTempPt[1] = (int) xy[1]; 3304 mLauncher.getDragLayer().getDescendantCoordRelativeToSelf(this, mTempPt, true); 3305 mLauncher.getDragLayer().mapCoordInSelfToDescendent(hotseat.getLayout(), mTempPt); 3306 3307 xy[0] = mTempPt[0]; 3308 xy[1] = mTempPt[1]; 3309 } 3310 3311 /* 3312 * 3313 * Convert the 2D coordinate xy from this CellLayout's coordinate space to 3314 * the parent View's coordinate space. The argument xy is modified with the return result. 3315 * 3316 */ 3317 void mapPointFromChildToSelf(View v, float[] xy) { 3318 xy[0] += v.getLeft(); 3319 xy[1] += v.getTop(); 3320 } 3321 3322 static private float squaredDistance(float[] point1, float[] point2) { 3323 float distanceX = point1[0] - point2[0]; 3324 float distanceY = point2[1] - point2[1]; 3325 return distanceX * distanceX + distanceY * distanceY; 3326 } 3327 3328 /* 3329 * 3330 * This method returns the CellLayout that is currently being dragged to. In order to drag 3331 * to a CellLayout, either the touch point must be directly over the CellLayout, or as a second 3332 * strategy, we see if the dragView is overlapping any CellLayout and choose the closest one 3333 * 3334 * Return null if no CellLayout is currently being dragged over 3335 * 3336 */ 3337 private CellLayout findMatchingPageForDragOver( 3338 DragView dragView, float originX, float originY, boolean exact) { 3339 // We loop through all the screens (ie CellLayouts) and see which ones overlap 3340 // with the item being dragged and then choose the one that's closest to the touch point 3341 final int screenCount = getChildCount(); 3342 CellLayout bestMatchingScreen = null; 3343 float smallestDistSoFar = Float.MAX_VALUE; 3344 3345 for (int i = 0; i < screenCount; i++) { 3346 // The custom content screen is not a valid drag over option 3347 if (mScreenOrder.get(i) == CUSTOM_CONTENT_SCREEN_ID) { 3348 continue; 3349 } 3350 3351 CellLayout cl = (CellLayout) getChildAt(i); 3352 3353 final float[] touchXy = {originX, originY}; 3354 // Transform the touch coordinates to the CellLayout's local coordinates 3355 // If the touch point is within the bounds of the cell layout, we can return immediately 3356 cl.getMatrix().invert(mTempInverseMatrix); 3357 mapPointFromSelfToChild(cl, touchXy, mTempInverseMatrix); 3358 3359 if (touchXy[0] >= 0 && touchXy[0] <= cl.getWidth() && 3360 touchXy[1] >= 0 && touchXy[1] <= cl.getHeight()) { 3361 return cl; 3362 } 3363 3364 if (!exact) { 3365 // Get the center of the cell layout in screen coordinates 3366 final float[] cellLayoutCenter = mTempCellLayoutCenterCoordinates; 3367 cellLayoutCenter[0] = cl.getWidth()/2; 3368 cellLayoutCenter[1] = cl.getHeight()/2; 3369 mapPointFromChildToSelf(cl, cellLayoutCenter); 3370 3371 touchXy[0] = originX; 3372 touchXy[1] = originY; 3373 3374 // Calculate the distance between the center of the CellLayout 3375 // and the touch point 3376 float dist = squaredDistance(touchXy, cellLayoutCenter); 3377 3378 if (dist < smallestDistSoFar) { 3379 smallestDistSoFar = dist; 3380 bestMatchingScreen = cl; 3381 } 3382 } 3383 } 3384 return bestMatchingScreen; 3385 } 3386 3387 // This is used to compute the visual center of the dragView. This point is then 3388 // used to visualize drop locations and determine where to drop an item. The idea is that 3389 // the visual center represents the user's interpretation of where the item is, and hence 3390 // is the appropriate point to use when determining drop location. 3391 private float[] getDragViewVisualCenter(int x, int y, int xOffset, int yOffset, 3392 DragView dragView, float[] recycle) { 3393 float res[]; 3394 if (recycle == null) { 3395 res = new float[2]; 3396 } else { 3397 res = recycle; 3398 } 3399 3400 // First off, the drag view has been shifted in a way that is not represented in the 3401 // x and y values or the x/yOffsets. Here we account for that shift. 3402 x += getResources().getDimensionPixelSize(R.dimen.dragViewOffsetX); 3403 y += getResources().getDimensionPixelSize(R.dimen.dragViewOffsetY); 3404 3405 // These represent the visual top and left of drag view if a dragRect was provided. 3406 // If a dragRect was not provided, then they correspond to the actual view left and 3407 // top, as the dragRect is in that case taken to be the entire dragView. 3408 // R.dimen.dragViewOffsetY. 3409 int left = x - xOffset; 3410 int top = y - yOffset; 3411 3412 // In order to find the visual center, we shift by half the dragRect 3413 res[0] = left + dragView.getDragRegion().width() / 2; 3414 res[1] = top + dragView.getDragRegion().height() / 2; 3415 3416 return res; 3417 } 3418 3419 private boolean isDragWidget(DragObject d) { 3420 return (d.dragInfo instanceof LauncherAppWidgetInfo || 3421 d.dragInfo instanceof PendingAddWidgetInfo); 3422 } 3423 private boolean isExternalDragWidget(DragObject d) { 3424 return d.dragSource != this && isDragWidget(d); 3425 } 3426 3427 public void onDragOver(DragObject d) { 3428 // Skip drag over events while we are dragging over side pages 3429 if (mInScrollArea || mIsSwitchingState || mState == State.SMALL) return; 3430 3431 Rect r = new Rect(); 3432 CellLayout layout = null; 3433 ItemInfo item = (ItemInfo) d.dragInfo; 3434 3435 // Ensure that we have proper spans for the item that we are dropping 3436 if (item.spanX < 0 || item.spanY < 0) throw new RuntimeException("Improper spans found"); 3437 mDragViewVisualCenter = getDragViewVisualCenter(d.x, d.y, d.xOffset, d.yOffset, 3438 d.dragView, mDragViewVisualCenter); 3439 3440 final View child = (mDragInfo == null) ? null : mDragInfo.cell; 3441 // Identify whether we have dragged over a side page 3442 if (isSmall()) { 3443 if (mLauncher.getHotseat() != null && !isExternalDragWidget(d)) { 3444 if (isPointInSelfOverHotseat(d.x, d.y, r)) { 3445 layout = mLauncher.getHotseat().getLayout(); 3446 } 3447 } 3448 if (layout == null) { 3449 layout = findMatchingPageForDragOver(d.dragView, d.x, d.y, false); 3450 } 3451 if (layout != mDragTargetLayout) { 3452 setCurrentDropLayout(layout); 3453 setCurrentDragOverlappingLayout(layout); 3454 3455 boolean isInSpringLoadedMode = (mState == State.SPRING_LOADED); 3456 if (isInSpringLoadedMode) { 3457 if (mLauncher.isHotseatLayout(layout)) { 3458 mSpringLoadedDragController.cancel(); 3459 } else { 3460 mSpringLoadedDragController.setAlarm(mDragTargetLayout); 3461 } 3462 } 3463 } 3464 } else { 3465 // Test to see if we are over the hotseat otherwise just use the current page 3466 if (mLauncher.getHotseat() != null && !isDragWidget(d)) { 3467 if (isPointInSelfOverHotseat(d.x, d.y, r)) { 3468 layout = mLauncher.getHotseat().getLayout(); 3469 } 3470 } 3471 if (layout == null) { 3472 layout = getCurrentDropLayout(); 3473 } 3474 if (layout != mDragTargetLayout) { 3475 setCurrentDropLayout(layout); 3476 setCurrentDragOverlappingLayout(layout); 3477 } 3478 } 3479 3480 // Handle the drag over 3481 if (mDragTargetLayout != null) { 3482 // We want the point to be mapped to the dragTarget. 3483 if (mLauncher.isHotseatLayout(mDragTargetLayout)) { 3484 mapPointFromSelfToHotseatLayout(mLauncher.getHotseat(), mDragViewVisualCenter); 3485 } else { 3486 mapPointFromSelfToChild(mDragTargetLayout, mDragViewVisualCenter, null); 3487 } 3488 3489 ItemInfo info = (ItemInfo) d.dragInfo; 3490 3491 int minSpanX = item.spanX; 3492 int minSpanY = item.spanY; 3493 if (item.minSpanX > 0 && item.minSpanY > 0) { 3494 minSpanX = item.minSpanX; 3495 minSpanY = item.minSpanY; 3496 } 3497 3498 mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], 3499 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, 3500 mDragTargetLayout, mTargetCell); 3501 int reorderX = mTargetCell[0]; 3502 int reorderY = mTargetCell[1]; 3503 3504 setCurrentDropOverCell(mTargetCell[0], mTargetCell[1]); 3505 3506 float targetCellDistance = mDragTargetLayout.getDistanceFromCell( 3507 mDragViewVisualCenter[0], mDragViewVisualCenter[1], mTargetCell); 3508 3509 final View dragOverView = mDragTargetLayout.getChildAt(mTargetCell[0], 3510 mTargetCell[1]); 3511 3512 manageFolderFeedback(info, mDragTargetLayout, mTargetCell, 3513 targetCellDistance, dragOverView); 3514 3515 boolean nearestDropOccupied = mDragTargetLayout.isNearestDropLocationOccupied((int) 3516 mDragViewVisualCenter[0], (int) mDragViewVisualCenter[1], item.spanX, 3517 item.spanY, child, mTargetCell); 3518 3519 if (!nearestDropOccupied) { 3520 mDragTargetLayout.visualizeDropLocation(child, mDragOutline, 3521 (int) mDragViewVisualCenter[0], (int) mDragViewVisualCenter[1], 3522 mTargetCell[0], mTargetCell[1], item.spanX, item.spanY, false, 3523 d.dragView.getDragVisualizeOffset(), d.dragView.getDragRegion()); 3524 } else if ((mDragMode == DRAG_MODE_NONE || mDragMode == DRAG_MODE_REORDER) 3525 && !mReorderAlarm.alarmPending() && (mLastReorderX != reorderX || 3526 mLastReorderY != reorderY)) { 3527 3528 int[] resultSpan = new int[2]; 3529 mDragTargetLayout.performReorder((int) mDragViewVisualCenter[0], 3530 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, item.spanX, item.spanY, 3531 child, mTargetCell, resultSpan, CellLayout.MODE_SHOW_REORDER_HINT); 3532 3533 // Otherwise, if we aren't adding to or creating a folder and there's no pending 3534 // reorder, then we schedule a reorder 3535 ReorderAlarmListener listener = new ReorderAlarmListener(mDragViewVisualCenter, 3536 minSpanX, minSpanY, item.spanX, item.spanY, d.dragView, child); 3537 mReorderAlarm.setOnAlarmListener(listener); 3538 mReorderAlarm.setAlarm(REORDER_TIMEOUT); 3539 } 3540 3541 if (mDragMode == DRAG_MODE_CREATE_FOLDER || mDragMode == DRAG_MODE_ADD_TO_FOLDER || 3542 !nearestDropOccupied) { 3543 if (mDragTargetLayout != null) { 3544 mDragTargetLayout.revertTempState(); 3545 } 3546 } 3547 } 3548 } 3549 3550 private void manageFolderFeedback(ItemInfo info, CellLayout targetLayout, 3551 int[] targetCell, float distance, View dragOverView) { 3552 boolean userFolderPending = willCreateUserFolder(info, targetLayout, targetCell, distance, 3553 false); 3554 3555 if (mDragMode == DRAG_MODE_NONE && userFolderPending && 3556 !mFolderCreationAlarm.alarmPending()) { 3557 mFolderCreationAlarm.setOnAlarmListener(new 3558 FolderCreationAlarmListener(targetLayout, targetCell[0], targetCell[1])); 3559 mFolderCreationAlarm.setAlarm(FOLDER_CREATION_TIMEOUT); 3560 return; 3561 } 3562 3563 boolean willAddToFolder = 3564 willAddToExistingUserFolder(info, targetLayout, targetCell, distance); 3565 3566 if (willAddToFolder && mDragMode == DRAG_MODE_NONE) { 3567 mDragOverFolderIcon = ((FolderIcon) dragOverView); 3568 mDragOverFolderIcon.onDragEnter(info); 3569 if (targetLayout != null) { 3570 targetLayout.clearDragOutlines(); 3571 } 3572 setDragMode(DRAG_MODE_ADD_TO_FOLDER); 3573 return; 3574 } 3575 3576 if (mDragMode == DRAG_MODE_ADD_TO_FOLDER && !willAddToFolder) { 3577 setDragMode(DRAG_MODE_NONE); 3578 } 3579 if (mDragMode == DRAG_MODE_CREATE_FOLDER && !userFolderPending) { 3580 setDragMode(DRAG_MODE_NONE); 3581 } 3582 3583 return; 3584 } 3585 3586 class FolderCreationAlarmListener implements OnAlarmListener { 3587 CellLayout layout; 3588 int cellX; 3589 int cellY; 3590 3591 public FolderCreationAlarmListener(CellLayout layout, int cellX, int cellY) { 3592 this.layout = layout; 3593 this.cellX = cellX; 3594 this.cellY = cellY; 3595 } 3596 3597 public void onAlarm(Alarm alarm) { 3598 if (mDragFolderRingAnimator != null) { 3599 // This shouldn't happen ever, but just in case, make sure we clean up the mess. 3600 mDragFolderRingAnimator.animateToNaturalState(); 3601 } 3602 mDragFolderRingAnimator = new FolderRingAnimator(mLauncher, null); 3603 mDragFolderRingAnimator.setCell(cellX, cellY); 3604 mDragFolderRingAnimator.setCellLayout(layout); 3605 mDragFolderRingAnimator.animateToAcceptState(); 3606 layout.showFolderAccept(mDragFolderRingAnimator); 3607 layout.clearDragOutlines(); 3608 setDragMode(DRAG_MODE_CREATE_FOLDER); 3609 } 3610 } 3611 3612 class ReorderAlarmListener implements OnAlarmListener { 3613 float[] dragViewCenter; 3614 int minSpanX, minSpanY, spanX, spanY; 3615 DragView dragView; 3616 View child; 3617 3618 public ReorderAlarmListener(float[] dragViewCenter, int minSpanX, int minSpanY, int spanX, 3619 int spanY, DragView dragView, View child) { 3620 this.dragViewCenter = dragViewCenter; 3621 this.minSpanX = minSpanX; 3622 this.minSpanY = minSpanY; 3623 this.spanX = spanX; 3624 this.spanY = spanY; 3625 this.child = child; 3626 this.dragView = dragView; 3627 } 3628 3629 public void onAlarm(Alarm alarm) { 3630 int[] resultSpan = new int[2]; 3631 mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], 3632 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, mDragTargetLayout, 3633 mTargetCell); 3634 mLastReorderX = mTargetCell[0]; 3635 mLastReorderY = mTargetCell[1]; 3636 3637 mTargetCell = mDragTargetLayout.performReorder((int) mDragViewVisualCenter[0], 3638 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, spanX, spanY, 3639 child, mTargetCell, resultSpan, CellLayout.MODE_DRAG_OVER); 3640 3641 if (mTargetCell[0] < 0 || mTargetCell[1] < 0) { 3642 mDragTargetLayout.revertTempState(); 3643 } else { 3644 setDragMode(DRAG_MODE_REORDER); 3645 } 3646 3647 boolean resize = resultSpan[0] != spanX || resultSpan[1] != spanY; 3648 mDragTargetLayout.visualizeDropLocation(child, mDragOutline, 3649 (int) mDragViewVisualCenter[0], (int) mDragViewVisualCenter[1], 3650 mTargetCell[0], mTargetCell[1], resultSpan[0], resultSpan[1], resize, 3651 dragView.getDragVisualizeOffset(), dragView.getDragRegion()); 3652 } 3653 } 3654 3655 @Override 3656 public void getHitRectRelativeToDragLayer(Rect outRect) { 3657 // We want the workspace to have the whole area of the display (it will find the correct 3658 // cell layout to drop to in the existing drag/drop logic. 3659 mLauncher.getDragLayer().getDescendantRectRelativeToSelf(this, outRect); 3660 } 3661 3662 /** 3663 * Add the item specified by dragInfo to the given layout. 3664 * @return true if successful 3665 */ 3666 public boolean addExternalItemToScreen(ItemInfo dragInfo, CellLayout layout) { 3667 if (layout.findCellForSpan(mTempEstimate, dragInfo.spanX, dragInfo.spanY)) { 3668 onDropExternal(dragInfo.dropPos, (ItemInfo) dragInfo, (CellLayout) layout, false); 3669 return true; 3670 } 3671 mLauncher.showOutOfSpaceMessage(mLauncher.isHotseatLayout(layout)); 3672 return false; 3673 } 3674 3675 private void onDropExternal(int[] touchXY, Object dragInfo, 3676 CellLayout cellLayout, boolean insertAtFirst) { 3677 onDropExternal(touchXY, dragInfo, cellLayout, insertAtFirst, null); 3678 } 3679 3680 /** 3681 * Drop an item that didn't originate on one of the workspace screens. 3682 * It may have come from Launcher (e.g. from all apps or customize), or it may have 3683 * come from another app altogether. 3684 * 3685 * NOTE: This can also be called when we are outside of a drag event, when we want 3686 * to add an item to one of the workspace screens. 3687 */ 3688 private void onDropExternal(final int[] touchXY, final Object dragInfo, 3689 final CellLayout cellLayout, boolean insertAtFirst, DragObject d) { 3690 final Runnable exitSpringLoadedRunnable = new Runnable() { 3691 @Override 3692 public void run() { 3693 removeExtraEmptyScreen(false, new Runnable() { 3694 @Override 3695 public void run() { 3696 mLauncher.exitSpringLoadedDragModeDelayed(true, 3697 Launcher.EXIT_SPRINGLOADED_MODE_SHORT_TIMEOUT, null); 3698 } 3699 }); 3700 } 3701 }; 3702 3703 ItemInfo info = (ItemInfo) dragInfo; 3704 int spanX = info.spanX; 3705 int spanY = info.spanY; 3706 if (mDragInfo != null) { 3707 spanX = mDragInfo.spanX; 3708 spanY = mDragInfo.spanY; 3709 } 3710 3711 final long container = mLauncher.isHotseatLayout(cellLayout) ? 3712 LauncherSettings.Favorites.CONTAINER_HOTSEAT : 3713 LauncherSettings.Favorites.CONTAINER_DESKTOP; 3714 final long screenId = getIdForScreen(cellLayout); 3715 if (!mLauncher.isHotseatLayout(cellLayout) 3716 && screenId != getScreenIdForPageIndex(mCurrentPage) 3717 && mState != State.SPRING_LOADED) { 3718 snapToScreenId(screenId, null); 3719 } 3720 3721 if (info instanceof PendingAddItemInfo) { 3722 final PendingAddItemInfo pendingInfo = (PendingAddItemInfo) dragInfo; 3723 3724 boolean findNearestVacantCell = true; 3725 if (pendingInfo.itemType == LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT) { 3726 mTargetCell = findNearestArea((int) touchXY[0], (int) touchXY[1], spanX, spanY, 3727 cellLayout, mTargetCell); 3728 float distance = cellLayout.getDistanceFromCell(mDragViewVisualCenter[0], 3729 mDragViewVisualCenter[1], mTargetCell); 3730 if (willCreateUserFolder((ItemInfo) d.dragInfo, cellLayout, mTargetCell, 3731 distance, true) || willAddToExistingUserFolder((ItemInfo) d.dragInfo, 3732 cellLayout, mTargetCell, distance)) { 3733 findNearestVacantCell = false; 3734 } 3735 } 3736 3737 final ItemInfo item = (ItemInfo) d.dragInfo; 3738 boolean updateWidgetSize = false; 3739 if (findNearestVacantCell) { 3740 int minSpanX = item.spanX; 3741 int minSpanY = item.spanY; 3742 if (item.minSpanX > 0 && item.minSpanY > 0) { 3743 minSpanX = item.minSpanX; 3744 minSpanY = item.minSpanY; 3745 } 3746 int[] resultSpan = new int[2]; 3747 mTargetCell = cellLayout.performReorder((int) mDragViewVisualCenter[0], 3748 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, info.spanX, info.spanY, 3749 null, mTargetCell, resultSpan, CellLayout.MODE_ON_DROP_EXTERNAL); 3750 3751 if (resultSpan[0] != item.spanX || resultSpan[1] != item.spanY) { 3752 updateWidgetSize = true; 3753 } 3754 item.spanX = resultSpan[0]; 3755 item.spanY = resultSpan[1]; 3756 } 3757 3758 Runnable onAnimationCompleteRunnable = new Runnable() { 3759 @Override 3760 public void run() { 3761 // When dragging and dropping from customization tray, we deal with creating 3762 // widgets/shortcuts/folders in a slightly different way 3763 switch (pendingInfo.itemType) { 3764 case LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET: 3765 int span[] = new int[2]; 3766 span[0] = item.spanX; 3767 span[1] = item.spanY; 3768 mLauncher.addAppWidgetFromDrop((PendingAddWidgetInfo) pendingInfo, 3769 container, screenId, mTargetCell, span, null); 3770 break; 3771 case LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT: 3772 mLauncher.processShortcutFromDrop(pendingInfo.componentName, 3773 container, screenId, mTargetCell, null); 3774 break; 3775 default: 3776 throw new IllegalStateException("Unknown item type: " + 3777 pendingInfo.itemType); 3778 } 3779 } 3780 }; 3781 View finalView = pendingInfo.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET 3782 ? ((PendingAddWidgetInfo) pendingInfo).boundWidget : null; 3783 3784 if (finalView instanceof AppWidgetHostView && updateWidgetSize) { 3785 AppWidgetHostView awhv = (AppWidgetHostView) finalView; 3786 AppWidgetResizeFrame.updateWidgetSizeRanges(awhv, mLauncher, item.spanX, 3787 item.spanY); 3788 } 3789 3790 int animationStyle = ANIMATE_INTO_POSITION_AND_DISAPPEAR; 3791 if (pendingInfo.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET && 3792 ((PendingAddWidgetInfo) pendingInfo).info.configure != null) { 3793 animationStyle = ANIMATE_INTO_POSITION_AND_REMAIN; 3794 } 3795 animateWidgetDrop(info, cellLayout, d.dragView, onAnimationCompleteRunnable, 3796 animationStyle, finalView, true); 3797 } else { 3798 // This is for other drag/drop cases, like dragging from All Apps 3799 View view = null; 3800 3801 switch (info.itemType) { 3802 case LauncherSettings.Favorites.ITEM_TYPE_APPLICATION: 3803 case LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT: 3804 if (info.container == NO_ID && info instanceof AppInfo) { 3805 // Came from all apps -- make a copy 3806 info = new ShortcutInfo((AppInfo) info); 3807 } 3808 view = mLauncher.createShortcut(R.layout.application, cellLayout, 3809 (ShortcutInfo) info); 3810 break; 3811 case LauncherSettings.Favorites.ITEM_TYPE_FOLDER: 3812 view = FolderIcon.fromXml(R.layout.folder_icon, mLauncher, cellLayout, 3813 (FolderInfo) info, mIconCache); 3814 break; 3815 default: 3816 throw new IllegalStateException("Unknown item type: " + info.itemType); 3817 } 3818 3819 // First we find the cell nearest to point at which the item is 3820 // dropped, without any consideration to whether there is an item there. 3821 if (touchXY != null) { 3822 mTargetCell = findNearestArea((int) touchXY[0], (int) touchXY[1], spanX, spanY, 3823 cellLayout, mTargetCell); 3824 float distance = cellLayout.getDistanceFromCell(mDragViewVisualCenter[0], 3825 mDragViewVisualCenter[1], mTargetCell); 3826 d.postAnimationRunnable = exitSpringLoadedRunnable; 3827 if (createUserFolderIfNecessary(view, container, cellLayout, mTargetCell, distance, 3828 true, d.dragView, d.postAnimationRunnable)) { 3829 return; 3830 } 3831 if (addToExistingFolderIfNecessary(view, cellLayout, mTargetCell, distance, d, 3832 true)) { 3833 return; 3834 } 3835 } 3836 3837 if (touchXY != null) { 3838 // when dragging and dropping, just find the closest free spot 3839 mTargetCell = cellLayout.performReorder((int) mDragViewVisualCenter[0], 3840 (int) mDragViewVisualCenter[1], 1, 1, 1, 1, 3841 null, mTargetCell, null, CellLayout.MODE_ON_DROP_EXTERNAL); 3842 } else { 3843 cellLayout.findCellForSpan(mTargetCell, 1, 1); 3844 } 3845 addInScreen(view, container, screenId, mTargetCell[0], mTargetCell[1], info.spanX, 3846 info.spanY, insertAtFirst); 3847 cellLayout.onDropChild(view); 3848 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) view.getLayoutParams(); 3849 cellLayout.getShortcutsAndWidgets().measureChild(view); 3850 3851 LauncherModel.addOrMoveItemInDatabase(mLauncher, info, container, screenId, 3852 lp.cellX, lp.cellY); 3853 3854 if (d.dragView != null) { 3855 // We wrap the animation call in the temporary set and reset of the current 3856 // cellLayout to its final transform -- this means we animate the drag view to 3857 // the correct final location. 3858 setFinalTransitionTransform(cellLayout); 3859 mLauncher.getDragLayer().animateViewIntoPosition(d.dragView, view, 3860 exitSpringLoadedRunnable, this); 3861 resetTransitionTransform(cellLayout); 3862 } 3863 } 3864 } 3865 3866 public Bitmap createWidgetBitmap(ItemInfo widgetInfo, View layout) { 3867 int[] unScaledSize = mLauncher.getWorkspace().estimateItemSize(widgetInfo.spanX, 3868 widgetInfo.spanY, widgetInfo, false); 3869 int visibility = layout.getVisibility(); 3870 layout.setVisibility(VISIBLE); 3871 3872 int width = MeasureSpec.makeMeasureSpec(unScaledSize[0], MeasureSpec.EXACTLY); 3873 int height = MeasureSpec.makeMeasureSpec(unScaledSize[1], MeasureSpec.EXACTLY); 3874 Bitmap b = Bitmap.createBitmap(unScaledSize[0], unScaledSize[1], 3875 Bitmap.Config.ARGB_8888); 3876 Canvas c = new Canvas(b); 3877 3878 layout.measure(width, height); 3879 layout.layout(0, 0, unScaledSize[0], unScaledSize[1]); 3880 layout.draw(c); 3881 c.setBitmap(null); 3882 layout.setVisibility(visibility); 3883 return b; 3884 } 3885 3886 private void getFinalPositionForDropAnimation(int[] loc, float[] scaleXY, 3887 DragView dragView, CellLayout layout, ItemInfo info, int[] targetCell, 3888 boolean external, boolean scale) { 3889 // Now we animate the dragView, (ie. the widget or shortcut preview) into its final 3890 // location and size on the home screen. 3891 int spanX = info.spanX; 3892 int spanY = info.spanY; 3893 3894 Rect r = estimateItemPosition(layout, info, targetCell[0], targetCell[1], spanX, spanY); 3895 loc[0] = r.left; 3896 loc[1] = r.top; 3897 3898 setFinalTransitionTransform(layout); 3899 float cellLayoutScale = 3900 mLauncher.getDragLayer().getDescendantCoordRelativeToSelf(layout, loc, true); 3901 resetTransitionTransform(layout); 3902 3903 float dragViewScaleX; 3904 float dragViewScaleY; 3905 if (scale) { 3906 dragViewScaleX = (1.0f * r.width()) / dragView.getMeasuredWidth(); 3907 dragViewScaleY = (1.0f * r.height()) / dragView.getMeasuredHeight(); 3908 } else { 3909 dragViewScaleX = 1f; 3910 dragViewScaleY = 1f; 3911 } 3912 3913 // The animation will scale the dragView about its center, so we need to center about 3914 // the final location. 3915 loc[0] -= (dragView.getMeasuredWidth() - cellLayoutScale * r.width()) / 2; 3916 loc[1] -= (dragView.getMeasuredHeight() - cellLayoutScale * r.height()) / 2; 3917 3918 scaleXY[0] = dragViewScaleX * cellLayoutScale; 3919 scaleXY[1] = dragViewScaleY * cellLayoutScale; 3920 } 3921 3922 public void animateWidgetDrop(ItemInfo info, CellLayout cellLayout, DragView dragView, 3923 final Runnable onCompleteRunnable, int animationType, final View finalView, 3924 boolean external) { 3925 Rect from = new Rect(); 3926 mLauncher.getDragLayer().getViewRectRelativeToSelf(dragView, from); 3927 3928 int[] finalPos = new int[2]; 3929 float scaleXY[] = new float[2]; 3930 boolean scalePreview = !(info instanceof PendingAddShortcutInfo); 3931 getFinalPositionForDropAnimation(finalPos, scaleXY, dragView, cellLayout, info, mTargetCell, 3932 external, scalePreview); 3933 3934 Resources res = mLauncher.getResources(); 3935 final int duration = res.getInteger(R.integer.config_dropAnimMaxDuration) - 200; 3936 3937 // In the case where we've prebound the widget, we remove it from the DragLayer 3938 if (finalView instanceof AppWidgetHostView && external) { 3939 Log.d(TAG, "6557954 Animate widget drop, final view is appWidgetHostView"); 3940 mLauncher.getDragLayer().removeView(finalView); 3941 } 3942 if ((animationType == ANIMATE_INTO_POSITION_AND_RESIZE || external) && finalView != null) { 3943 Bitmap crossFadeBitmap = createWidgetBitmap(info, finalView); 3944 dragView.setCrossFadeBitmap(crossFadeBitmap); 3945 dragView.crossFade((int) (duration * 0.8f)); 3946 } else if (info.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET && external) { 3947 scaleXY[0] = scaleXY[1] = Math.min(scaleXY[0], scaleXY[1]); 3948 } 3949 3950 DragLayer dragLayer = mLauncher.getDragLayer(); 3951 if (animationType == CANCEL_TWO_STAGE_WIDGET_DROP_ANIMATION) { 3952 mLauncher.getDragLayer().animateViewIntoPosition(dragView, finalPos, 0f, 0.1f, 0.1f, 3953 DragLayer.ANIMATION_END_DISAPPEAR, onCompleteRunnable, duration); 3954 } else { 3955 int endStyle; 3956 if (animationType == ANIMATE_INTO_POSITION_AND_REMAIN) { 3957 endStyle = DragLayer.ANIMATION_END_REMAIN_VISIBLE; 3958 } else { 3959 endStyle = DragLayer.ANIMATION_END_DISAPPEAR;; 3960 } 3961 3962 Runnable onComplete = new Runnable() { 3963 @Override 3964 public void run() { 3965 if (finalView != null) { 3966 finalView.setVisibility(VISIBLE); 3967 } 3968 if (onCompleteRunnable != null) { 3969 onCompleteRunnable.run(); 3970 } 3971 } 3972 }; 3973 dragLayer.animateViewIntoPosition(dragView, from.left, from.top, finalPos[0], 3974 finalPos[1], 1, 1, 1, scaleXY[0], scaleXY[1], onComplete, endStyle, 3975 duration, this); 3976 } 3977 } 3978 3979 public void setFinalTransitionTransform(CellLayout layout) { 3980 if (isSwitchingState()) { 3981 mCurrentScale = getScaleX(); 3982 setScaleX(mNewScale); 3983 setScaleY(mNewScale); 3984 } 3985 } 3986 public void resetTransitionTransform(CellLayout layout) { 3987 if (isSwitchingState()) { 3988 setScaleX(mCurrentScale); 3989 setScaleY(mCurrentScale); 3990 } 3991 } 3992 3993 /** 3994 * Return the current {@link CellLayout}, correctly picking the destination 3995 * screen while a scroll is in progress. 3996 */ 3997 public CellLayout getCurrentDropLayout() { 3998 return (CellLayout) getChildAt(getNextPage()); 3999 } 4000 4001 /** 4002 * Return the current CellInfo describing our current drag; this method exists 4003 * so that Launcher can sync this object with the correct info when the activity is created/ 4004 * destroyed 4005 * 4006 */ 4007 public CellLayout.CellInfo getDragInfo() { 4008 return mDragInfo; 4009 } 4010 4011 public int getCurrentPageOffsetFromCustomContent() { 4012 return getNextPage() - numCustomPages(); 4013 } 4014 4015 /** 4016 * Calculate the nearest cell where the given object would be dropped. 4017 * 4018 * pixelX and pixelY should be in the coordinate system of layout 4019 */ 4020 private int[] findNearestArea(int pixelX, int pixelY, 4021 int spanX, int spanY, CellLayout layout, int[] recycle) { 4022 return layout.findNearestArea( 4023 pixelX, pixelY, spanX, spanY, recycle); 4024 } 4025 4026 void setup(DragController dragController) { 4027 mSpringLoadedDragController = new SpringLoadedDragController(mLauncher); 4028 mDragController = dragController; 4029 4030 // hardware layers on children are enabled on startup, but should be disabled until 4031 // needed 4032 updateChildrenLayersEnabled(false); 4033 } 4034 4035 /** 4036 * Called at the end of a drag which originated on the workspace. 4037 */ 4038 public void onDropCompleted(final View target, final DragObject d, 4039 final boolean isFlingToDelete, final boolean success) { 4040 if (mDeferDropAfterUninstall) { 4041 mDeferredAction = new Runnable() { 4042 public void run() { 4043 onDropCompleted(target, d, isFlingToDelete, success); 4044 mDeferredAction = null; 4045 } 4046 }; 4047 return; 4048 } 4049 4050 boolean beingCalledAfterUninstall = mDeferredAction != null; 4051 4052 if (success && !(beingCalledAfterUninstall && !mUninstallSuccessful)) { 4053 if (target != this && mDragInfo != null) { 4054 CellLayout parentCell = getParentCellLayoutForView(mDragInfo.cell); 4055 if (parentCell != null) { 4056 parentCell.removeView(mDragInfo.cell); 4057 } 4058 if (mDragInfo.cell instanceof DropTarget) { 4059 mDragController.removeDropTarget((DropTarget) mDragInfo.cell); 4060 } 4061 // If we move the item to anything not on the Workspace, check if any empty 4062 // screens need to be removed. If we dropped back on the workspace, this will 4063 // be done post drop animation. 4064 removeExtraEmptyScreen(true, null, 0, true); 4065 } 4066 } else if (mDragInfo != null) { 4067 CellLayout cellLayout; 4068 if (mLauncher.isHotseatLayout(target)) { 4069 cellLayout = mLauncher.getHotseat().getLayout(); 4070 } else { 4071 cellLayout = getScreenWithId(mDragInfo.screenId); 4072 } 4073 if (cellLayout == null && LauncherAppState.isDogfoodBuild()) { 4074 throw new RuntimeException("Invalid state: cellLayout == null in " 4075 + "Workspace#onDropCompleted. Please file a bug. "); 4076 } 4077 if (cellLayout != null) { 4078 cellLayout.onDropChild(mDragInfo.cell); 4079 } 4080 } 4081 if ((d.cancelled || (beingCalledAfterUninstall && !mUninstallSuccessful)) 4082 && mDragInfo.cell != null) { 4083 mDragInfo.cell.setVisibility(VISIBLE); 4084 } 4085 mDragOutline = null; 4086 mDragInfo = null; 4087 } 4088 4089 public void deferCompleteDropAfterUninstallActivity() { 4090 mDeferDropAfterUninstall = true; 4091 } 4092 4093 /// maybe move this into a smaller part 4094 public void onUninstallActivityReturned(boolean success) { 4095 mDeferDropAfterUninstall = false; 4096 mUninstallSuccessful = success; 4097 if (mDeferredAction != null) { 4098 mDeferredAction.run(); 4099 } 4100 } 4101 4102 void updateItemLocationsInDatabase(CellLayout cl) { 4103 int count = cl.getShortcutsAndWidgets().getChildCount(); 4104 4105 long screenId = getIdForScreen(cl); 4106 int container = Favorites.CONTAINER_DESKTOP; 4107 4108 if (mLauncher.isHotseatLayout(cl)) { 4109 screenId = -1; 4110 container = Favorites.CONTAINER_HOTSEAT; 4111 } 4112 4113 for (int i = 0; i < count; i++) { 4114 View v = cl.getShortcutsAndWidgets().getChildAt(i); 4115 ItemInfo info = (ItemInfo) v.getTag(); 4116 // Null check required as the AllApps button doesn't have an item info 4117 if (info != null && info.requiresDbUpdate) { 4118 info.requiresDbUpdate = false; 4119 LauncherModel.modifyItemInDatabase(mLauncher, info, container, screenId, info.cellX, 4120 info.cellY, info.spanX, info.spanY); 4121 } 4122 } 4123 } 4124 4125 ArrayList<ComponentName> getUniqueComponents(boolean stripDuplicates, ArrayList<ComponentName> duplicates) { 4126 ArrayList<ComponentName> uniqueIntents = new ArrayList<ComponentName>(); 4127 getUniqueIntents((CellLayout) mLauncher.getHotseat().getLayout(), uniqueIntents, duplicates, false); 4128 int count = getChildCount(); 4129 for (int i = 0; i < count; i++) { 4130 CellLayout cl = (CellLayout) getChildAt(i); 4131 getUniqueIntents(cl, uniqueIntents, duplicates, false); 4132 } 4133 return uniqueIntents; 4134 } 4135 4136 void getUniqueIntents(CellLayout cl, ArrayList<ComponentName> uniqueIntents, 4137 ArrayList<ComponentName> duplicates, boolean stripDuplicates) { 4138 int count = cl.getShortcutsAndWidgets().getChildCount(); 4139 4140 ArrayList<View> children = new ArrayList<View>(); 4141 for (int i = 0; i < count; i++) { 4142 View v = cl.getShortcutsAndWidgets().getChildAt(i); 4143 children.add(v); 4144 } 4145 4146 for (int i = 0; i < count; i++) { 4147 View v = children.get(i); 4148 ItemInfo info = (ItemInfo) v.getTag(); 4149 // Null check required as the AllApps button doesn't have an item info 4150 if (info instanceof ShortcutInfo) { 4151 ShortcutInfo si = (ShortcutInfo) info; 4152 ComponentName cn = si.intent.getComponent(); 4153 4154 Uri dataUri = si.intent.getData(); 4155 // If dataUri is not null / empty or if this component isn't one that would 4156 // have previously showed up in the AllApps list, then this is a widget-type 4157 // shortcut, so ignore it. 4158 if (dataUri != null && !dataUri.equals(Uri.EMPTY)) { 4159 continue; 4160 } 4161 4162 if (!uniqueIntents.contains(cn)) { 4163 uniqueIntents.add(cn); 4164 } else { 4165 if (stripDuplicates) { 4166 cl.removeViewInLayout(v); 4167 LauncherModel.deleteItemFromDatabase(mLauncher, si); 4168 } 4169 if (duplicates != null) { 4170 duplicates.add(cn); 4171 } 4172 } 4173 } 4174 if (v instanceof FolderIcon) { 4175 FolderIcon fi = (FolderIcon) v; 4176 ArrayList<View> items = fi.getFolder().getItemsInReadingOrder(); 4177 for (int j = 0; j < items.size(); j++) { 4178 if (items.get(j).getTag() instanceof ShortcutInfo) { 4179 ShortcutInfo si = (ShortcutInfo) items.get(j).getTag(); 4180 ComponentName cn = si.intent.getComponent(); 4181 4182 Uri dataUri = si.intent.getData(); 4183 // If dataUri is not null / empty or if this component isn't one that would 4184 // have previously showed up in the AllApps list, then this is a widget-type 4185 // shortcut, so ignore it. 4186 if (dataUri != null && !dataUri.equals(Uri.EMPTY)) { 4187 continue; 4188 } 4189 4190 if (!uniqueIntents.contains(cn)) { 4191 uniqueIntents.add(cn); 4192 } else { 4193 if (stripDuplicates) { 4194 fi.getFolderInfo().remove(si); 4195 LauncherModel.deleteItemFromDatabase(mLauncher, si); 4196 } 4197 if (duplicates != null) { 4198 duplicates.add(cn); 4199 } 4200 } 4201 } 4202 } 4203 } 4204 } 4205 } 4206 4207 void saveWorkspaceToDb() { 4208 saveWorkspaceScreenToDb((CellLayout) mLauncher.getHotseat().getLayout()); 4209 int count = getChildCount(); 4210 for (int i = 0; i < count; i++) { 4211 CellLayout cl = (CellLayout) getChildAt(i); 4212 saveWorkspaceScreenToDb(cl); 4213 } 4214 } 4215 4216 void saveWorkspaceScreenToDb(CellLayout cl) { 4217 int count = cl.getShortcutsAndWidgets().getChildCount(); 4218 4219 long screenId = getIdForScreen(cl); 4220 int container = Favorites.CONTAINER_DESKTOP; 4221 4222 Hotseat hotseat = mLauncher.getHotseat(); 4223 if (mLauncher.isHotseatLayout(cl)) { 4224 screenId = -1; 4225 container = Favorites.CONTAINER_HOTSEAT; 4226 } 4227 4228 for (int i = 0; i < count; i++) { 4229 View v = cl.getShortcutsAndWidgets().getChildAt(i); 4230 ItemInfo info = (ItemInfo) v.getTag(); 4231 // Null check required as the AllApps button doesn't have an item info 4232 if (info != null) { 4233 int cellX = info.cellX; 4234 int cellY = info.cellY; 4235 if (container == Favorites.CONTAINER_HOTSEAT) { 4236 cellX = hotseat.getCellXFromOrder((int) info.screenId); 4237 cellY = hotseat.getCellYFromOrder((int) info.screenId); 4238 } 4239 LauncherModel.addItemToDatabase(mLauncher, info, container, screenId, cellX, 4240 cellY, false); 4241 } 4242 if (v instanceof FolderIcon) { 4243 FolderIcon fi = (FolderIcon) v; 4244 fi.getFolder().addItemLocationsInDatabase(); 4245 } 4246 } 4247 } 4248 4249 @Override 4250 public float getIntrinsicIconScaleFactor() { 4251 return 1f; 4252 } 4253 4254 @Override 4255 public boolean supportsFlingToDelete() { 4256 return true; 4257 } 4258 4259 @Override 4260 public boolean supportsAppInfoDropTarget() { 4261 return false; 4262 } 4263 4264 @Override 4265 public boolean supportsDeleteDropTarget() { 4266 return true; 4267 } 4268 4269 @Override 4270 public void onFlingToDelete(DragObject d, int x, int y, PointF vec) { 4271 // Do nothing 4272 } 4273 4274 @Override 4275 public void onFlingToDeleteCompleted() { 4276 // Do nothing 4277 } 4278 4279 public boolean isDropEnabled() { 4280 return true; 4281 } 4282 4283 @Override 4284 protected void onRestoreInstanceState(Parcelable state) { 4285 super.onRestoreInstanceState(state); 4286 Launcher.setScreen(mCurrentPage); 4287 } 4288 4289 @Override 4290 protected void dispatchRestoreInstanceState(SparseArray<Parcelable> container) { 4291 // We don't dispatch restoreInstanceState to our children using this code path. 4292 // Some pages will be restored immediately as their items are bound immediately, and 4293 // others we will need to wait until after their items are bound. 4294 mSavedStates = container; 4295 } 4296 4297 public void restoreInstanceStateForChild(int child) { 4298 if (mSavedStates != null) { 4299 mRestoredPages.add(child); 4300 CellLayout cl = (CellLayout) getChildAt(child); 4301 if (cl != null) { 4302 cl.restoreInstanceState(mSavedStates); 4303 } 4304 } 4305 } 4306 4307 public void restoreInstanceStateForRemainingPages() { 4308 int count = getChildCount(); 4309 for (int i = 0; i < count; i++) { 4310 if (!mRestoredPages.contains(i)) { 4311 restoreInstanceStateForChild(i); 4312 } 4313 } 4314 mRestoredPages.clear(); 4315 mSavedStates = null; 4316 } 4317 4318 @Override 4319 public void scrollLeft() { 4320 if (!isSmall() && !mIsSwitchingState) { 4321 super.scrollLeft(); 4322 } 4323 Folder openFolder = getOpenFolder(); 4324 if (openFolder != null) { 4325 openFolder.completeDragExit(); 4326 } 4327 } 4328 4329 @Override 4330 public void scrollRight() { 4331 if (!isSmall() && !mIsSwitchingState) { 4332 super.scrollRight(); 4333 } 4334 Folder openFolder = getOpenFolder(); 4335 if (openFolder != null) { 4336 openFolder.completeDragExit(); 4337 } 4338 } 4339 4340 @Override 4341 public boolean onEnterScrollArea(int x, int y, int direction) { 4342 // Ignore the scroll area if we are dragging over the hot seat 4343 boolean isPortrait = !LauncherAppState.isScreenLandscape(getContext()); 4344 if (mLauncher.getHotseat() != null && isPortrait) { 4345 Rect r = new Rect(); 4346 mLauncher.getHotseat().getHitRect(r); 4347 if (r.contains(x, y)) { 4348 return false; 4349 } 4350 } 4351 4352 boolean result = false; 4353 if (!isSmall() && !mIsSwitchingState && getOpenFolder() == null) { 4354 mInScrollArea = true; 4355 4356 final int page = getNextPage() + 4357 (direction == DragController.SCROLL_LEFT ? -1 : 1); 4358 // We always want to exit the current layout to ensure parity of enter / exit 4359 setCurrentDropLayout(null); 4360 4361 if (0 <= page && page < getChildCount()) { 4362 // Ensure that we are not dragging over to the custom content screen 4363 if (getScreenIdForPageIndex(page) == CUSTOM_CONTENT_SCREEN_ID) { 4364 return false; 4365 } 4366 4367 CellLayout layout = (CellLayout) getChildAt(page); 4368 setCurrentDragOverlappingLayout(layout); 4369 4370 // Workspace is responsible for drawing the edge glow on adjacent pages, 4371 // so we need to redraw the workspace when this may have changed. 4372 invalidate(); 4373 result = true; 4374 } 4375 } 4376 return result; 4377 } 4378 4379 @Override 4380 public boolean onExitScrollArea() { 4381 boolean result = false; 4382 if (mInScrollArea) { 4383 invalidate(); 4384 CellLayout layout = getCurrentDropLayout(); 4385 setCurrentDropLayout(layout); 4386 setCurrentDragOverlappingLayout(layout); 4387 4388 result = true; 4389 mInScrollArea = false; 4390 } 4391 return result; 4392 } 4393 4394 private void onResetScrollArea() { 4395 setCurrentDragOverlappingLayout(null); 4396 mInScrollArea = false; 4397 } 4398 4399 /** 4400 * Returns a specific CellLayout 4401 */ 4402 CellLayout getParentCellLayoutForView(View v) { 4403 ArrayList<CellLayout> layouts = getWorkspaceAndHotseatCellLayouts(); 4404 for (CellLayout layout : layouts) { 4405 if (layout.getShortcutsAndWidgets().indexOfChild(v) > -1) { 4406 return layout; 4407 } 4408 } 4409 return null; 4410 } 4411 4412 /** 4413 * Returns a list of all the CellLayouts in the workspace. 4414 */ 4415 ArrayList<CellLayout> getWorkspaceAndHotseatCellLayouts() { 4416 ArrayList<CellLayout> layouts = new ArrayList<CellLayout>(); 4417 int screenCount = getChildCount(); 4418 for (int screen = 0; screen < screenCount; screen++) { 4419 layouts.add(((CellLayout) getChildAt(screen))); 4420 } 4421 if (mLauncher.getHotseat() != null) { 4422 layouts.add(mLauncher.getHotseat().getLayout()); 4423 } 4424 return layouts; 4425 } 4426 4427 /** 4428 * We should only use this to search for specific children. Do not use this method to modify 4429 * ShortcutsAndWidgetsContainer directly. Includes ShortcutAndWidgetContainers from 4430 * the hotseat and workspace pages 4431 */ 4432 ArrayList<ShortcutAndWidgetContainer> getAllShortcutAndWidgetContainers() { 4433 ArrayList<ShortcutAndWidgetContainer> childrenLayouts = 4434 new ArrayList<ShortcutAndWidgetContainer>(); 4435 int screenCount = getChildCount(); 4436 for (int screen = 0; screen < screenCount; screen++) { 4437 childrenLayouts.add(((CellLayout) getChildAt(screen)).getShortcutsAndWidgets()); 4438 } 4439 if (mLauncher.getHotseat() != null) { 4440 childrenLayouts.add(mLauncher.getHotseat().getLayout().getShortcutsAndWidgets()); 4441 } 4442 return childrenLayouts; 4443 } 4444 4445 public Folder getFolderForTag(Object tag) { 4446 ArrayList<ShortcutAndWidgetContainer> childrenLayouts = 4447 getAllShortcutAndWidgetContainers(); 4448 for (ShortcutAndWidgetContainer layout: childrenLayouts) { 4449 int count = layout.getChildCount(); 4450 for (int i = 0; i < count; i++) { 4451 View child = layout.getChildAt(i); 4452 if (child instanceof Folder) { 4453 Folder f = (Folder) child; 4454 if (f.getInfo() == tag && f.getInfo().opened) { 4455 return f; 4456 } 4457 } 4458 } 4459 } 4460 return null; 4461 } 4462 4463 public View getViewForTag(Object tag) { 4464 ArrayList<ShortcutAndWidgetContainer> childrenLayouts = 4465 getAllShortcutAndWidgetContainers(); 4466 for (ShortcutAndWidgetContainer layout: childrenLayouts) { 4467 int count = layout.getChildCount(); 4468 for (int i = 0; i < count; i++) { 4469 View child = layout.getChildAt(i); 4470 if (child.getTag() == tag) { 4471 return child; 4472 } 4473 } 4474 } 4475 return null; 4476 } 4477 4478 void clearDropTargets() { 4479 ArrayList<ShortcutAndWidgetContainer> childrenLayouts = 4480 getAllShortcutAndWidgetContainers(); 4481 for (ShortcutAndWidgetContainer layout: childrenLayouts) { 4482 int childCount = layout.getChildCount(); 4483 for (int j = 0; j < childCount; j++) { 4484 View v = layout.getChildAt(j); 4485 if (v instanceof DropTarget) { 4486 mDragController.removeDropTarget((DropTarget) v); 4487 } 4488 } 4489 } 4490 } 4491 4492 // Removes ALL items that match a given package name, this is usually called when a package 4493 // has been removed and we want to remove all components (widgets, shortcuts, apps) that 4494 // belong to that package. 4495 void removeItemsByPackageName(final ArrayList<String> packages) { 4496 final HashSet<String> packageNames = new HashSet<String>(); 4497 packageNames.addAll(packages); 4498 4499 // Filter out all the ItemInfos that this is going to affect 4500 final HashSet<ItemInfo> infos = new HashSet<ItemInfo>(); 4501 final HashSet<ComponentName> cns = new HashSet<ComponentName>(); 4502 ArrayList<CellLayout> cellLayouts = getWorkspaceAndHotseatCellLayouts(); 4503 for (CellLayout layoutParent : cellLayouts) { 4504 ViewGroup layout = layoutParent.getShortcutsAndWidgets(); 4505 int childCount = layout.getChildCount(); 4506 for (int i = 0; i < childCount; ++i) { 4507 View view = layout.getChildAt(i); 4508 infos.add((ItemInfo) view.getTag()); 4509 } 4510 } 4511 LauncherModel.ItemInfoFilter filter = new LauncherModel.ItemInfoFilter() { 4512 @Override 4513 public boolean filterItem(ItemInfo parent, ItemInfo info, 4514 ComponentName cn) { 4515 if (packageNames.contains(cn.getPackageName())) { 4516 cns.add(cn); 4517 return true; 4518 } 4519 return false; 4520 } 4521 }; 4522 LauncherModel.filterItemInfos(infos, filter); 4523 4524 // Remove the affected components 4525 removeItemsByComponentName(cns); 4526 } 4527 4528 // Removes items that match the application info specified, when applications are removed 4529 // as a part of an update, this is called to ensure that other widgets and application 4530 // shortcuts are not removed. 4531 void removeItemsByApplicationInfo(final ArrayList<AppInfo> appInfos) { 4532 // Just create a hash table of all the specific components that this will affect 4533 HashSet<ComponentName> cns = new HashSet<ComponentName>(); 4534 for (AppInfo info : appInfos) { 4535 cns.add(info.componentName); 4536 } 4537 4538 // Remove all the things 4539 removeItemsByComponentName(cns); 4540 } 4541 4542 void removeItemsByComponentName(final HashSet<ComponentName> componentNames) { 4543 ArrayList<CellLayout> cellLayouts = getWorkspaceAndHotseatCellLayouts(); 4544 for (final CellLayout layoutParent: cellLayouts) { 4545 final ViewGroup layout = layoutParent.getShortcutsAndWidgets(); 4546 4547 final HashMap<ItemInfo, View> children = new HashMap<ItemInfo, View>(); 4548 for (int j = 0; j < layout.getChildCount(); j++) { 4549 final View view = layout.getChildAt(j); 4550 children.put((ItemInfo) view.getTag(), view); 4551 } 4552 4553 final ArrayList<View> childrenToRemove = new ArrayList<View>(); 4554 final HashMap<FolderInfo, ArrayList<ShortcutInfo>> folderAppsToRemove = 4555 new HashMap<FolderInfo, ArrayList<ShortcutInfo>>(); 4556 LauncherModel.ItemInfoFilter filter = new LauncherModel.ItemInfoFilter() { 4557 @Override 4558 public boolean filterItem(ItemInfo parent, ItemInfo info, 4559 ComponentName cn) { 4560 if (parent instanceof FolderInfo) { 4561 if (componentNames.contains(cn)) { 4562 FolderInfo folder = (FolderInfo) parent; 4563 ArrayList<ShortcutInfo> appsToRemove; 4564 if (folderAppsToRemove.containsKey(folder)) { 4565 appsToRemove = folderAppsToRemove.get(folder); 4566 } else { 4567 appsToRemove = new ArrayList<ShortcutInfo>(); 4568 folderAppsToRemove.put(folder, appsToRemove); 4569 } 4570 appsToRemove.add((ShortcutInfo) info); 4571 return true; 4572 } 4573 } else { 4574 if (componentNames.contains(cn)) { 4575 childrenToRemove.add(children.get(info)); 4576 return true; 4577 } 4578 } 4579 return false; 4580 } 4581 }; 4582 LauncherModel.filterItemInfos(children.keySet(), filter); 4583 4584 // Remove all the apps from their folders 4585 for (FolderInfo folder : folderAppsToRemove.keySet()) { 4586 ArrayList<ShortcutInfo> appsToRemove = folderAppsToRemove.get(folder); 4587 for (ShortcutInfo info : appsToRemove) { 4588 folder.remove(info); 4589 } 4590 } 4591 4592 // Remove all the other children 4593 for (View child : childrenToRemove) { 4594 // Note: We can not remove the view directly from CellLayoutChildren as this 4595 // does not re-mark the spaces as unoccupied. 4596 layoutParent.removeViewInLayout(child); 4597 if (child instanceof DropTarget) { 4598 mDragController.removeDropTarget((DropTarget) child); 4599 } 4600 } 4601 4602 if (childrenToRemove.size() > 0) { 4603 layout.requestLayout(); 4604 layout.invalidate(); 4605 } 4606 } 4607 4608 // Strip all the empty screens 4609 stripEmptyScreens(); 4610 } 4611 4612 private void updateShortcut(HashMap<ComponentName, AppInfo> appsMap, ItemInfo info, 4613 View child) { 4614 ComponentName cn = info.getIntent().getComponent(); 4615 if (cn != null) { 4616 AppInfo appInfo = appsMap.get(info.getIntent().getComponent()); 4617 if ((appInfo != null) && LauncherModel.isShortcutInfoUpdateable(info)) { 4618 ShortcutInfo shortcutInfo = (ShortcutInfo) info; 4619 BubbleTextView shortcut = (BubbleTextView) child; 4620 shortcutInfo.updateIcon(mIconCache); 4621 shortcutInfo.title = appInfo.title.toString(); 4622 shortcut.applyFromShortcutInfo(shortcutInfo, mIconCache); 4623 } 4624 } 4625 } 4626 4627 void updateShortcuts(ArrayList<AppInfo> apps) { 4628 // Create a map of the apps to test against 4629 final HashMap<ComponentName, AppInfo> appsMap = new HashMap<ComponentName, AppInfo>(); 4630 for (AppInfo ai : apps) { 4631 appsMap.put(ai.componentName, ai); 4632 } 4633 4634 ArrayList<ShortcutAndWidgetContainer> childrenLayouts = getAllShortcutAndWidgetContainers(); 4635 for (ShortcutAndWidgetContainer layout: childrenLayouts) { 4636 // Update all the children shortcuts 4637 final HashMap<ItemInfo, View> children = new HashMap<ItemInfo, View>(); 4638 for (int j = 0; j < layout.getChildCount(); j++) { 4639 View v = layout.getChildAt(j); 4640 ItemInfo info = (ItemInfo) v.getTag(); 4641 if (info instanceof FolderInfo && v instanceof FolderIcon) { 4642 FolderIcon folder = (FolderIcon) v; 4643 ArrayList<View> folderChildren = folder.getFolder().getItemsInReadingOrder(); 4644 for (View fv : folderChildren) { 4645 info = (ItemInfo) fv.getTag(); 4646 updateShortcut(appsMap, info, fv); 4647 } 4648 folder.invalidate(); 4649 } else if (info instanceof ShortcutInfo) { 4650 updateShortcut(appsMap, info, v); 4651 } 4652 } 4653 } 4654 } 4655 4656 private void moveToScreen(int page, boolean animate) { 4657 if (!isSmall()) { 4658 if (animate) { 4659 snapToPage(page); 4660 } else { 4661 setCurrentPage(page); 4662 } 4663 } 4664 View child = getChildAt(page); 4665 if (child != null) { 4666 child.requestFocus(); 4667 } 4668 } 4669 4670 void moveToDefaultScreen(boolean animate) { 4671 moveToScreen(mDefaultPage, animate); 4672 } 4673 4674 void moveToCustomContentScreen(boolean animate) { 4675 if (hasCustomContent()) { 4676 int ccIndex = getPageIndexForScreenId(CUSTOM_CONTENT_SCREEN_ID); 4677 if (animate) { 4678 snapToPage(ccIndex); 4679 } else { 4680 setCurrentPage(ccIndex); 4681 } 4682 View child = getChildAt(ccIndex); 4683 if (child != null) { 4684 child.requestFocus(); 4685 } 4686 } 4687 exitWidgetResizeMode(); 4688 } 4689 4690 @Override 4691 protected PageIndicator.PageMarkerResources getPageIndicatorMarker(int pageIndex) { 4692 long screenId = getScreenIdForPageIndex(pageIndex); 4693 if (screenId == EXTRA_EMPTY_SCREEN_ID) { 4694 int count = mScreenOrder.size() - numCustomPages(); 4695 if (count > 1) { 4696 return new PageIndicator.PageMarkerResources(R.drawable.ic_pageindicator_current, 4697 R.drawable.ic_pageindicator_add); 4698 } 4699 } 4700 4701 return super.getPageIndicatorMarker(pageIndex); 4702 } 4703 4704 @Override 4705 public void syncPages() { 4706 } 4707 4708 @Override 4709 public void syncPageItems(int page, boolean immediate) { 4710 } 4711 4712 protected String getPageIndicatorDescription() { 4713 String settings = getResources().getString(R.string.settings_button_text); 4714 return getCurrentPageDescription() + ", " + settings; 4715 } 4716 4717 protected String getCurrentPageDescription() { 4718 int page = (mNextPage != INVALID_PAGE) ? mNextPage : mCurrentPage; 4719 int delta = numCustomPages(); 4720 if (hasCustomContent() && getNextPage() == 0) { 4721 return mCustomContentDescription; 4722 } 4723 return String.format(getContext().getString(R.string.workspace_scroll_format), 4724 page + 1 - delta, getChildCount() - delta); 4725 } 4726 4727 public void getLocationInDragLayer(int[] loc) { 4728 mLauncher.getDragLayer().getLocationInDragLayer(this, loc); 4729 } 4730} 4731