Workspace.java revision 803a4bec0fe4f291b5e131f0a4fcb6ca8ecd2ec3
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.Paint; 41import android.graphics.Point; 42import android.graphics.PointF; 43import android.graphics.Rect; 44import android.graphics.Region.Op; 45import android.graphics.drawable.Drawable; 46import android.net.Uri; 47import android.os.AsyncTask; 48import android.os.IBinder; 49import android.os.Parcelable; 50import android.support.v4.view.ViewCompat; 51import android.util.AttributeSet; 52import android.util.Log; 53import android.util.SparseArray; 54import android.view.Choreographer; 55import android.view.Display; 56import android.view.MotionEvent; 57import android.view.View; 58import android.view.ViewGroup; 59import android.view.accessibility.AccessibilityManager; 60import android.view.animation.DecelerateInterpolator; 61import android.view.animation.Interpolator; 62import android.widget.TextView; 63 64import com.android.launcher3.compat.UserHandleCompat; 65import com.android.launcher3.FolderIcon.FolderRingAnimator; 66import com.android.launcher3.Launcher.CustomContentCallbacks; 67import com.android.launcher3.LauncherSettings.Favorites; 68 69import java.util.ArrayList; 70import java.util.HashMap; 71import java.util.HashSet; 72import java.util.Iterator; 73 74/** 75 * The workspace is a wide area with a wallpaper and a finite number of pages. 76 * Each page contains a number of icons, folders or widgets the user can 77 * interact with. A workspace is meant to be used with a fixed width only. 78 */ 79public class Workspace extends SmoothPagedView 80 implements DropTarget, DragSource, DragScroller, View.OnTouchListener, 81 DragController.DragListener, LauncherTransitionable, ViewGroup.OnHierarchyChangeListener, 82 Insettable { 83 private static final String TAG = "Launcher.Workspace"; 84 85 // Y rotation to apply to the workspace screens 86 private static final float WORKSPACE_OVERSCROLL_ROTATION = 24f; 87 88 private static final int CHILDREN_OUTLINE_FADE_OUT_DELAY = 0; 89 private static final int CHILDREN_OUTLINE_FADE_OUT_DURATION = 375; 90 private static final int CHILDREN_OUTLINE_FADE_IN_DURATION = 100; 91 92 protected static final int SNAP_OFF_EMPTY_SCREEN_DURATION = 400; 93 protected static final int FADE_EMPTY_SCREEN_DURATION = 150; 94 95 private static final int BACKGROUND_FADE_OUT_DURATION = 350; 96 private static final int ADJACENT_SCREEN_DROP_DURATION = 300; 97 private static final int FLING_THRESHOLD_VELOCITY = 500; 98 99 private static final float ALPHA_CUTOFF_THRESHOLD = 0.01f; 100 101 static final boolean MAP_NO_RECURSE = false; 102 static final boolean MAP_RECURSE = true; 103 104 // These animators are used to fade the children's outlines 105 private ObjectAnimator mChildrenOutlineFadeInAnimation; 106 private ObjectAnimator mChildrenOutlineFadeOutAnimation; 107 private float mChildrenOutlineAlpha = 0; 108 109 // These properties refer to the background protection gradient used for AllApps and Customize 110 private ValueAnimator mBackgroundFadeInAnimation; 111 private ValueAnimator mBackgroundFadeOutAnimation; 112 private Drawable mBackground; 113 boolean mDrawBackground = true; 114 private float mBackgroundAlpha = 0; 115 116 private static final long CUSTOM_CONTENT_GESTURE_DELAY = 200; 117 private long mTouchDownTime = -1; 118 private long mCustomContentShowTime = -1; 119 120 private LayoutTransition mLayoutTransition; 121 private final WallpaperManager mWallpaperManager; 122 private IBinder mWindowToken; 123 124 private int mOriginalDefaultPage; 125 private int mDefaultPage; 126 127 private ShortcutAndWidgetContainer mDragSourceInternal; 128 private static boolean sAccessibilityEnabled; 129 130 // The screen id used for the empty screen always present to the right. 131 final static long EXTRA_EMPTY_SCREEN_ID = -201; 132 private final static long CUSTOM_CONTENT_SCREEN_ID = -301; 133 134 private HashMap<Long, CellLayout> mWorkspaceScreens = new HashMap<Long, CellLayout>(); 135 private ArrayList<Long> mScreenOrder = new ArrayList<Long>(); 136 137 private Runnable mRemoveEmptyScreenRunnable; 138 private boolean mDeferRemoveExtraEmptyScreen = false; 139 140 /** 141 * CellInfo for the cell that is currently being dragged 142 */ 143 private CellLayout.CellInfo mDragInfo; 144 145 /** 146 * Target drop area calculated during last acceptDrop call. 147 */ 148 private int[] mTargetCell = new int[2]; 149 private int mDragOverX = -1; 150 private int mDragOverY = -1; 151 152 static Rect mLandscapeCellLayoutMetrics = null; 153 static Rect mPortraitCellLayoutMetrics = null; 154 155 CustomContentCallbacks mCustomContentCallbacks; 156 boolean mCustomContentShowing; 157 private float mLastCustomContentScrollProgress = -1f; 158 private String mCustomContentDescription = ""; 159 160 /** 161 * The CellLayout that is currently being dragged over 162 */ 163 private CellLayout mDragTargetLayout = null; 164 /** 165 * The CellLayout that we will show as glowing 166 */ 167 private CellLayout mDragOverlappingLayout = null; 168 169 /** 170 * The CellLayout which will be dropped to 171 */ 172 private CellLayout mDropToLayout = null; 173 174 private Launcher mLauncher; 175 private IconCache mIconCache; 176 private DragController mDragController; 177 178 // These are temporary variables to prevent having to allocate a new object just to 179 // return an (x, y) value from helper functions. Do NOT use them to maintain other state. 180 private int[] mTempCell = new int[2]; 181 private int[] mTempPt = new int[2]; 182 private int[] mTempEstimate = new int[2]; 183 private float[] mDragViewVisualCenter = new float[2]; 184 private float[] mTempCellLayoutCenterCoordinates = new float[2]; 185 private Matrix mTempInverseMatrix = new Matrix(); 186 187 private SpringLoadedDragController mSpringLoadedDragController; 188 private float mSpringLoadedShrinkFactor; 189 private float mOverviewModeShrinkFactor; 190 191 // State variable that indicates whether the pages are small (ie when you're 192 // in all apps or customize mode) 193 194 enum State { NORMAL, SPRING_LOADED, SMALL, OVERVIEW}; 195 private State mState = State.NORMAL; 196 private boolean mIsSwitchingState = false; 197 198 boolean mAnimatingViewIntoPlace = false; 199 boolean mIsDragOccuring = false; 200 boolean mChildrenLayersEnabled = true; 201 202 private boolean mStripScreensOnPageStopMoving = false; 203 204 /** Is the user is dragging an item near the edge of a page? */ 205 private boolean mInScrollArea = false; 206 207 private HolographicOutlineHelper mOutlineHelper; 208 private Bitmap mDragOutline = null; 209 private final Rect mTempRect = new Rect(); 210 private final int[] mTempXY = new int[2]; 211 private int[] mTempVisiblePagesRange = new int[2]; 212 private boolean mOverscrollTransformsSet; 213 private float mLastOverscrollPivotX; 214 public static final int DRAG_BITMAP_PADDING = 2; 215 private boolean mWorkspaceFadeInAdjacentScreens; 216 217 WallpaperOffsetInterpolator mWallpaperOffset; 218 private boolean mWallpaperIsLiveWallpaper; 219 private int mNumPagesForWallpaperParallax; 220 private float mLastSetWallpaperOffsetSteps = 0; 221 222 private Runnable mDelayedResizeRunnable; 223 private Runnable mDelayedSnapToPageRunnable; 224 private Point mDisplaySize = new Point(); 225 private int mCameraDistance; 226 227 // Variables relating to the creation of user folders by hovering shortcuts over shortcuts 228 private static final int FOLDER_CREATION_TIMEOUT = 0; 229 public static final int REORDER_TIMEOUT = 350; 230 private final Alarm mFolderCreationAlarm = new Alarm(); 231 private final Alarm mReorderAlarm = new Alarm(); 232 private FolderRingAnimator mDragFolderRingAnimator = null; 233 private FolderIcon mDragOverFolderIcon = null; 234 private boolean mCreateUserFolderOnDrop = false; 235 private boolean mAddToExistingFolderOnDrop = false; 236 private DropTarget.DragEnforcer mDragEnforcer; 237 private float mMaxDistanceForFolderCreation; 238 239 // Variables relating to touch disambiguation (scrolling workspace vs. scrolling a widget) 240 private float mXDown; 241 private float mYDown; 242 final static float START_DAMPING_TOUCH_SLOP_ANGLE = (float) Math.PI / 6; 243 final static float MAX_SWIPE_ANGLE = (float) Math.PI / 3; 244 final static float TOUCH_SLOP_DAMPING_FACTOR = 4; 245 246 // Relating to the animation of items being dropped externally 247 public static final int ANIMATE_INTO_POSITION_AND_DISAPPEAR = 0; 248 public static final int ANIMATE_INTO_POSITION_AND_REMAIN = 1; 249 public static final int ANIMATE_INTO_POSITION_AND_RESIZE = 2; 250 public static final int COMPLETE_TWO_STAGE_WIDGET_DROP_ANIMATION = 3; 251 public static final int CANCEL_TWO_STAGE_WIDGET_DROP_ANIMATION = 4; 252 253 // Related to dragging, folder creation and reordering 254 private static final int DRAG_MODE_NONE = 0; 255 private static final int DRAG_MODE_CREATE_FOLDER = 1; 256 private static final int DRAG_MODE_ADD_TO_FOLDER = 2; 257 private static final int DRAG_MODE_REORDER = 3; 258 private int mDragMode = DRAG_MODE_NONE; 259 private int mLastReorderX = -1; 260 private int mLastReorderY = -1; 261 262 private SparseArray<Parcelable> mSavedStates; 263 private final ArrayList<Integer> mRestoredPages = new ArrayList<Integer>(); 264 265 // These variables are used for storing the initial and final values during workspace animations 266 private int mSavedScrollX; 267 private float mSavedRotationY; 268 private float mSavedTranslationX; 269 270 private float mCurrentScale; 271 private float mNewScale; 272 private float[] mOldBackgroundAlphas; 273 private float[] mOldAlphas; 274 private float[] mNewBackgroundAlphas; 275 private float[] mNewAlphas; 276 private int mLastChildCount = -1; 277 private float mTransitionProgress; 278 279 private Runnable mDeferredAction; 280 private boolean mDeferDropAfterUninstall; 281 private boolean mUninstallSuccessful; 282 283 private final Runnable mBindPages = new Runnable() { 284 @Override 285 public void run() { 286 mLauncher.getModel().bindRemainingSynchronousPages(); 287 } 288 }; 289 290 /** 291 * Used to inflate the Workspace from XML. 292 * 293 * @param context The application's context. 294 * @param attrs The attributes set containing the Workspace's customization values. 295 */ 296 public Workspace(Context context, AttributeSet attrs) { 297 this(context, attrs, 0); 298 } 299 300 /** 301 * Used to inflate the Workspace from XML. 302 * 303 * @param context The application's context. 304 * @param attrs The attributes set containing the Workspace's customization values. 305 * @param defStyle Unused. 306 */ 307 public Workspace(Context context, AttributeSet attrs, int defStyle) { 308 super(context, attrs, defStyle); 309 mContentIsRefreshable = false; 310 311 mOutlineHelper = HolographicOutlineHelper.obtain(context); 312 313 mDragEnforcer = new DropTarget.DragEnforcer(context); 314 // With workspace, data is available straight from the get-go 315 setDataIsReady(); 316 317 mLauncher = (Launcher) context; 318 final Resources res = getResources(); 319 mWorkspaceFadeInAdjacentScreens = LauncherAppState.getInstance().getDynamicGrid(). 320 getDeviceProfile().shouldFadeAdjacentWorkspaceScreens(); 321 mFadeInAdjacentScreens = false; 322 mWallpaperManager = WallpaperManager.getInstance(context); 323 324 LauncherAppState app = LauncherAppState.getInstance(); 325 DeviceProfile grid = app.getDynamicGrid().getDeviceProfile(); 326 TypedArray a = context.obtainStyledAttributes(attrs, 327 R.styleable.Workspace, defStyle, 0); 328 mSpringLoadedShrinkFactor = 329 res.getInteger(R.integer.config_workspaceSpringLoadShrinkPercentage) / 100.0f; 330 mOverviewModeShrinkFactor = grid.getOverviewModeScale(); 331 mCameraDistance = res.getInteger(R.integer.config_cameraDistance); 332 mOriginalDefaultPage = mDefaultPage = a.getInt(R.styleable.Workspace_defaultScreen, 1); 333 a.recycle(); 334 335 setOnHierarchyChangeListener(this); 336 setHapticFeedbackEnabled(false); 337 338 initWorkspace(); 339 340 // Disable multitouch across the workspace/all apps/customize tray 341 setMotionEventSplittingEnabled(true); 342 setImportantForAccessibility(View.IMPORTANT_FOR_ACCESSIBILITY_YES); 343 } 344 345 @Override 346 public void setInsets(Rect insets) { 347 mInsets.set(insets); 348 349 CellLayout customScreen = getScreenWithId(CUSTOM_CONTENT_SCREEN_ID); 350 if (customScreen != null) { 351 View customContent = customScreen.getShortcutsAndWidgets().getChildAt(0); 352 if (customContent instanceof Insettable) { 353 ((Insettable) customContent).setInsets(mInsets); 354 } 355 } 356 } 357 358 // estimate the size of a widget with spans hSpan, vSpan. return MAX_VALUE for each 359 // dimension if unsuccessful 360 public int[] estimateItemSize(int hSpan, int vSpan, 361 ItemInfo itemInfo, boolean springLoaded) { 362 int[] size = new int[2]; 363 if (getChildCount() > 0) { 364 // Use the first non-custom page to estimate the child position 365 CellLayout cl = (CellLayout) getChildAt(numCustomPages()); 366 Rect r = estimateItemPosition(cl, itemInfo, 0, 0, hSpan, vSpan); 367 size[0] = r.width(); 368 size[1] = r.height(); 369 if (springLoaded) { 370 size[0] *= mSpringLoadedShrinkFactor; 371 size[1] *= mSpringLoadedShrinkFactor; 372 } 373 return size; 374 } else { 375 size[0] = Integer.MAX_VALUE; 376 size[1] = Integer.MAX_VALUE; 377 return size; 378 } 379 } 380 381 public Rect estimateItemPosition(CellLayout cl, ItemInfo pendingInfo, 382 int hCell, int vCell, int hSpan, int vSpan) { 383 Rect r = new Rect(); 384 cl.cellToRect(hCell, vCell, hSpan, vSpan, r); 385 return r; 386 } 387 388 public void onDragStart(final DragSource source, Object info, int dragAction) { 389 mIsDragOccuring = true; 390 updateChildrenLayersEnabled(false); 391 mLauncher.lockScreenOrientation(); 392 mLauncher.onInteractionBegin(); 393 setChildrenBackgroundAlphaMultipliers(1f); 394 // Prevent any Un/InstallShortcutReceivers from updating the db while we are dragging 395 InstallShortcutReceiver.enableInstallQueue(); 396 UninstallShortcutReceiver.enableUninstallQueue(); 397 post(new Runnable() { 398 @Override 399 public void run() { 400 if (mIsDragOccuring) { 401 mDeferRemoveExtraEmptyScreen = false; 402 addExtraEmptyScreenOnDrag(); 403 } 404 } 405 }); 406 } 407 408 409 public void deferRemoveExtraEmptyScreen() { 410 mDeferRemoveExtraEmptyScreen = true; 411 } 412 413 public void onDragEnd() { 414 if (!mDeferRemoveExtraEmptyScreen) { 415 removeExtraEmptyScreen(true, mDragSourceInternal != null); 416 } 417 418 mIsDragOccuring = false; 419 updateChildrenLayersEnabled(false); 420 mLauncher.unlockScreenOrientation(false); 421 422 // Re-enable any Un/InstallShortcutReceiver and now process any queued items 423 InstallShortcutReceiver.disableAndFlushInstallQueue(getContext()); 424 UninstallShortcutReceiver.disableAndFlushUninstallQueue(getContext()); 425 426 mDragSourceInternal = null; 427 mLauncher.onInteractionEnd(); 428 } 429 430 /** 431 * Initializes various states for this workspace. 432 */ 433 protected void initWorkspace() { 434 Context context = getContext(); 435 mCurrentPage = mDefaultPage; 436 Launcher.setScreen(mCurrentPage); 437 LauncherAppState app = LauncherAppState.getInstance(); 438 DeviceProfile grid = app.getDynamicGrid().getDeviceProfile(); 439 mIconCache = app.getIconCache(); 440 setWillNotDraw(false); 441 setClipChildren(false); 442 setClipToPadding(false); 443 setChildrenDrawnWithCacheEnabled(true); 444 445 setMinScale(mOverviewModeShrinkFactor); 446 setupLayoutTransition(); 447 448 final Resources res = getResources(); 449 try { 450 mBackground = res.getDrawable(R.drawable.apps_customize_bg); 451 } catch (Resources.NotFoundException e) { 452 // In this case, we will skip drawing background protection 453 } 454 455 mWallpaperOffset = new WallpaperOffsetInterpolator(); 456 Display display = mLauncher.getWindowManager().getDefaultDisplay(); 457 display.getSize(mDisplaySize); 458 459 mMaxDistanceForFolderCreation = (0.55f * grid.iconSizePx); 460 mFlingThresholdVelocity = (int) (FLING_THRESHOLD_VELOCITY * mDensity); 461 462 // Set the wallpaper dimensions when Launcher starts up 463 setWallpaperDimension(); 464 } 465 466 private void setupLayoutTransition() { 467 // We want to show layout transitions when pages are deleted, to close the gap. 468 mLayoutTransition = new LayoutTransition(); 469 mLayoutTransition.enableTransitionType(LayoutTransition.DISAPPEARING); 470 mLayoutTransition.enableTransitionType(LayoutTransition.CHANGE_DISAPPEARING); 471 mLayoutTransition.disableTransitionType(LayoutTransition.APPEARING); 472 mLayoutTransition.disableTransitionType(LayoutTransition.CHANGE_APPEARING); 473 setLayoutTransition(mLayoutTransition); 474 } 475 476 void enableLayoutTransitions() { 477 setLayoutTransition(mLayoutTransition); 478 } 479 void disableLayoutTransitions() { 480 setLayoutTransition(null); 481 } 482 483 @Override 484 protected int getScrollMode() { 485 return SmoothPagedView.X_LARGE_MODE; 486 } 487 488 @Override 489 public void onChildViewAdded(View parent, View child) { 490 if (!(child instanceof CellLayout)) { 491 throw new IllegalArgumentException("A Workspace can only have CellLayout children."); 492 } 493 CellLayout cl = ((CellLayout) child); 494 cl.setOnInterceptTouchListener(this); 495 cl.setClickable(true); 496 cl.setImportantForAccessibility(ViewCompat.IMPORTANT_FOR_ACCESSIBILITY_NO); 497 super.onChildViewAdded(parent, child); 498 } 499 500 protected boolean shouldDrawChild(View child) { 501 final CellLayout cl = (CellLayout) child; 502 return super.shouldDrawChild(child) && 503 (mIsSwitchingState || 504 cl.getShortcutsAndWidgets().getAlpha() > 0 || 505 cl.getBackgroundAlpha() > 0); 506 } 507 508 /** 509 * @return The open folder on the current screen, or null if there is none 510 */ 511 Folder getOpenFolder() { 512 DragLayer dragLayer = mLauncher.getDragLayer(); 513 int count = dragLayer.getChildCount(); 514 for (int i = 0; i < count; i++) { 515 View child = dragLayer.getChildAt(i); 516 if (child instanceof Folder) { 517 Folder folder = (Folder) child; 518 if (folder.getInfo().opened) 519 return folder; 520 } 521 } 522 return null; 523 } 524 525 boolean isTouchActive() { 526 return mTouchState != TOUCH_STATE_REST; 527 } 528 529 public void removeAllWorkspaceScreens() { 530 // Disable all layout transitions before removing all pages to ensure that we don't get the 531 // transition animations competing with us changing the scroll when we add pages or the 532 // custom content screen 533 disableLayoutTransitions(); 534 535 // Since we increment the current page when we call addCustomContentPage via bindScreens 536 // (and other places), we need to adjust the current page back when we clear the pages 537 if (hasCustomContent()) { 538 removeCustomContentPage(); 539 } 540 541 // Remove the pages and clear the screen models 542 removeAllViews(); 543 mScreenOrder.clear(); 544 mWorkspaceScreens.clear(); 545 546 // Re-enable the layout transitions 547 enableLayoutTransitions(); 548 } 549 550 public long insertNewWorkspaceScreenBeforeEmptyScreen(long screenId) { 551 // Find the index to insert this view into. If the empty screen exists, then 552 // insert it before that. 553 int insertIndex = mScreenOrder.indexOf(EXTRA_EMPTY_SCREEN_ID); 554 if (insertIndex < 0) { 555 insertIndex = mScreenOrder.size(); 556 } 557 return insertNewWorkspaceScreen(screenId, insertIndex); 558 } 559 560 public long insertNewWorkspaceScreen(long screenId) { 561 return insertNewWorkspaceScreen(screenId, getChildCount()); 562 } 563 564 public long insertNewWorkspaceScreen(long screenId, int insertIndex) { 565 // Log to disk 566 Launcher.addDumpLog(TAG, "11683562 - insertNewWorkspaceScreen(): " + screenId + 567 " at index: " + insertIndex, true); 568 569 if (mWorkspaceScreens.containsKey(screenId)) { 570 throw new RuntimeException("Screen id " + screenId + " already exists!"); 571 } 572 573 CellLayout newScreen = (CellLayout) 574 mLauncher.getLayoutInflater().inflate(R.layout.workspace_screen, null); 575 576 newScreen.setOnLongClickListener(mLongClickListener); 577 newScreen.setOnClickListener(mLauncher); 578 newScreen.setSoundEffectsEnabled(false); 579 mWorkspaceScreens.put(screenId, newScreen); 580 mScreenOrder.add(insertIndex, screenId); 581 addView(newScreen, insertIndex); 582 return screenId; 583 } 584 585 public void createCustomContentContainer() { 586 CellLayout customScreen = (CellLayout) 587 mLauncher.getLayoutInflater().inflate(R.layout.workspace_screen, null); 588 customScreen.disableBackground(); 589 590 mWorkspaceScreens.put(CUSTOM_CONTENT_SCREEN_ID, customScreen); 591 mScreenOrder.add(0, CUSTOM_CONTENT_SCREEN_ID); 592 593 // We want no padding on the custom content 594 customScreen.setPadding(0, 0, 0, 0); 595 596 addFullScreenPage(customScreen); 597 598 // Ensure that the current page and default page are maintained. 599 mDefaultPage = mOriginalDefaultPage + 1; 600 601 // Update the custom content hint 602 mLauncher.getLauncherClings().updateCustomContentHintVisibility(); 603 if (mRestorePage != INVALID_RESTORE_PAGE) { 604 mRestorePage = mRestorePage + 1; 605 } else { 606 setCurrentPage(getCurrentPage() + 1); 607 } 608 } 609 610 public void removeCustomContentPage() { 611 CellLayout customScreen = getScreenWithId(CUSTOM_CONTENT_SCREEN_ID); 612 if (customScreen == null) { 613 throw new RuntimeException("Expected custom content screen to exist"); 614 } 615 616 mWorkspaceScreens.remove(CUSTOM_CONTENT_SCREEN_ID); 617 mScreenOrder.remove(CUSTOM_CONTENT_SCREEN_ID); 618 removeView(customScreen); 619 620 if (mCustomContentCallbacks != null) { 621 mCustomContentCallbacks.onScrollProgressChanged(0); 622 mCustomContentCallbacks.onHide(); 623 } 624 625 mCustomContentCallbacks = null; 626 627 // Ensure that the current page and default page are maintained. 628 mDefaultPage = mOriginalDefaultPage - 1; 629 630 // Update the custom content hint 631 mLauncher.getLauncherClings().updateCustomContentHintVisibility(); 632 if (mRestorePage != INVALID_RESTORE_PAGE) { 633 mRestorePage = mRestorePage - 1; 634 } else { 635 setCurrentPage(getCurrentPage() - 1); 636 } 637 } 638 639 public void addToCustomContentPage(View customContent, CustomContentCallbacks callbacks, 640 String description) { 641 if (getPageIndexForScreenId(CUSTOM_CONTENT_SCREEN_ID) < 0) { 642 throw new RuntimeException("Expected custom content screen to exist"); 643 } 644 645 // Add the custom content to the full screen custom page 646 CellLayout customScreen = getScreenWithId(CUSTOM_CONTENT_SCREEN_ID); 647 int spanX = customScreen.getCountX(); 648 int spanY = customScreen.getCountY(); 649 CellLayout.LayoutParams lp = new CellLayout.LayoutParams(0, 0, spanX, spanY); 650 lp.canReorder = false; 651 lp.isFullscreen = true; 652 if (customContent instanceof Insettable) { 653 ((Insettable)customContent).setInsets(mInsets); 654 } 655 656 // Verify that the child is removed from any existing parent. 657 if (customContent.getParent() instanceof ViewGroup) { 658 ViewGroup parent = (ViewGroup) customContent.getParent(); 659 parent.removeView(customContent); 660 } 661 customScreen.removeAllViews(); 662 customScreen.addViewToCellLayout(customContent, 0, 0, lp, true); 663 mCustomContentDescription = description; 664 665 mCustomContentCallbacks = callbacks; 666 } 667 668 public void addExtraEmptyScreenOnDrag() { 669 // Log to disk 670 Launcher.addDumpLog(TAG, "11683562 - addExtraEmptyScreenOnDrag()", true); 671 672 boolean lastChildOnScreen = false; 673 boolean childOnFinalScreen = false; 674 675 // Cancel any pending removal of empty screen 676 mRemoveEmptyScreenRunnable = null; 677 678 if (mDragSourceInternal != null) { 679 if (mDragSourceInternal.getChildCount() == 1) { 680 lastChildOnScreen = true; 681 } 682 CellLayout cl = (CellLayout) mDragSourceInternal.getParent(); 683 if (indexOfChild(cl) == getChildCount() - 1) { 684 childOnFinalScreen = true; 685 } 686 } 687 688 // If this is the last item on the final screen 689 if (lastChildOnScreen && childOnFinalScreen) { 690 return; 691 } 692 if (!mWorkspaceScreens.containsKey(EXTRA_EMPTY_SCREEN_ID)) { 693 insertNewWorkspaceScreen(EXTRA_EMPTY_SCREEN_ID); 694 } 695 } 696 697 public boolean addExtraEmptyScreen() { 698 // Log to disk 699 Launcher.addDumpLog(TAG, "11683562 - addExtraEmptyScreen()", true); 700 701 if (!mWorkspaceScreens.containsKey(EXTRA_EMPTY_SCREEN_ID)) { 702 insertNewWorkspaceScreen(EXTRA_EMPTY_SCREEN_ID); 703 return true; 704 } 705 return false; 706 } 707 708 private void convertFinalScreenToEmptyScreenIfNecessary() { 709 // Log to disk 710 Launcher.addDumpLog(TAG, "11683562 - convertFinalScreenToEmptyScreenIfNecessary()", true); 711 712 if (mLauncher.isWorkspaceLoading()) { 713 // Invalid and dangerous operation if workspace is loading 714 Launcher.addDumpLog(TAG, " - workspace loading, skip", true); 715 return; 716 } 717 718 if (hasExtraEmptyScreen() || mScreenOrder.size() == 0) return; 719 long finalScreenId = mScreenOrder.get(mScreenOrder.size() - 1); 720 721 if (finalScreenId == CUSTOM_CONTENT_SCREEN_ID) return; 722 CellLayout finalScreen = mWorkspaceScreens.get(finalScreenId); 723 724 // If the final screen is empty, convert it to the extra empty screen 725 if (finalScreen.getShortcutsAndWidgets().getChildCount() == 0 && 726 !finalScreen.isDropPending()) { 727 mWorkspaceScreens.remove(finalScreenId); 728 mScreenOrder.remove(finalScreenId); 729 730 // if this is the last non-custom content screen, convert it to the empty screen 731 mWorkspaceScreens.put(EXTRA_EMPTY_SCREEN_ID, finalScreen); 732 mScreenOrder.add(EXTRA_EMPTY_SCREEN_ID); 733 734 // Update the model if we have changed any screens 735 mLauncher.getModel().updateWorkspaceScreenOrder(mLauncher, mScreenOrder); 736 Launcher.addDumpLog(TAG, "11683562 - extra empty screen: " + finalScreenId, true); 737 } 738 } 739 740 public void removeExtraEmptyScreen(final boolean animate, boolean stripEmptyScreens) { 741 removeExtraEmptyScreenDelayed(animate, null, 0, stripEmptyScreens); 742 } 743 744 public void removeExtraEmptyScreenDelayed(final boolean animate, final Runnable onComplete, 745 final int delay, final boolean stripEmptyScreens) { 746 // Log to disk 747 Launcher.addDumpLog(TAG, "11683562 - removeExtraEmptyScreen()", true); 748 if (mLauncher.isWorkspaceLoading()) { 749 // Don't strip empty screens if the workspace is still loading 750 Launcher.addDumpLog(TAG, " - workspace loading, skip", true); 751 return; 752 } 753 754 if (delay > 0) { 755 postDelayed(new Runnable() { 756 @Override 757 public void run() { 758 removeExtraEmptyScreenDelayed(animate, onComplete, 0, stripEmptyScreens); 759 } 760 }, delay); 761 return; 762 } 763 764 convertFinalScreenToEmptyScreenIfNecessary(); 765 if (hasExtraEmptyScreen()) { 766 int emptyIndex = mScreenOrder.indexOf(EXTRA_EMPTY_SCREEN_ID); 767 if (getNextPage() == emptyIndex) { 768 snapToPage(getNextPage() - 1, SNAP_OFF_EMPTY_SCREEN_DURATION); 769 fadeAndRemoveEmptyScreen(SNAP_OFF_EMPTY_SCREEN_DURATION, FADE_EMPTY_SCREEN_DURATION, 770 onComplete, stripEmptyScreens); 771 } else { 772 fadeAndRemoveEmptyScreen(0, FADE_EMPTY_SCREEN_DURATION, 773 onComplete, stripEmptyScreens); 774 } 775 return; 776 } else if (stripEmptyScreens) { 777 // If we're not going to strip the empty screens after removing 778 // the extra empty screen, do it right away. 779 stripEmptyScreens(); 780 } 781 782 if (onComplete != null) { 783 onComplete.run(); 784 } 785 } 786 787 private void fadeAndRemoveEmptyScreen(int delay, int duration, final Runnable onComplete, 788 final boolean stripEmptyScreens) { 789 // Log to disk 790 // XXX: Do we need to update LM workspace screens below? 791 Launcher.addDumpLog(TAG, "11683562 - fadeAndRemoveEmptyScreen()", true); 792 PropertyValuesHolder alpha = PropertyValuesHolder.ofFloat("alpha", 0f); 793 PropertyValuesHolder bgAlpha = PropertyValuesHolder.ofFloat("backgroundAlpha", 0f); 794 795 final CellLayout cl = mWorkspaceScreens.get(EXTRA_EMPTY_SCREEN_ID); 796 797 mRemoveEmptyScreenRunnable = new Runnable() { 798 @Override 799 public void run() { 800 if (hasExtraEmptyScreen()) { 801 mWorkspaceScreens.remove(EXTRA_EMPTY_SCREEN_ID); 802 mScreenOrder.remove(EXTRA_EMPTY_SCREEN_ID); 803 removeView(cl); 804 if (stripEmptyScreens) { 805 stripEmptyScreens(); 806 } 807 } 808 } 809 }; 810 811 ObjectAnimator oa = ObjectAnimator.ofPropertyValuesHolder(cl, alpha, bgAlpha); 812 oa.setDuration(duration); 813 oa.setStartDelay(delay); 814 oa.addListener(new AnimatorListenerAdapter() { 815 @Override 816 public void onAnimationEnd(Animator animation) { 817 if (mRemoveEmptyScreenRunnable != null) { 818 mRemoveEmptyScreenRunnable.run(); 819 } 820 if (onComplete != null) { 821 onComplete.run(); 822 } 823 } 824 }); 825 oa.start(); 826 } 827 828 public boolean hasExtraEmptyScreen() { 829 int nScreens = getChildCount(); 830 nScreens = nScreens - numCustomPages(); 831 return mWorkspaceScreens.containsKey(EXTRA_EMPTY_SCREEN_ID) && nScreens > 1; 832 } 833 834 public long commitExtraEmptyScreen() { 835 // Log to disk 836 Launcher.addDumpLog(TAG, "11683562 - commitExtraEmptyScreen()", true); 837 if (mLauncher.isWorkspaceLoading()) { 838 // Invalid and dangerous operation if workspace is loading 839 Launcher.addDumpLog(TAG, " - workspace loading, skip", true); 840 return -1; 841 } 842 843 int index = getPageIndexForScreenId(EXTRA_EMPTY_SCREEN_ID); 844 CellLayout cl = mWorkspaceScreens.get(EXTRA_EMPTY_SCREEN_ID); 845 mWorkspaceScreens.remove(EXTRA_EMPTY_SCREEN_ID); 846 mScreenOrder.remove(EXTRA_EMPTY_SCREEN_ID); 847 848 long newId = LauncherAppState.getLauncherProvider().generateNewScreenId(); 849 mWorkspaceScreens.put(newId, cl); 850 mScreenOrder.add(newId); 851 852 // Update the page indicator marker 853 if (getPageIndicator() != null) { 854 getPageIndicator().updateMarker(index, getPageIndicatorMarker(index)); 855 } 856 857 // Update the model for the new screen 858 mLauncher.getModel().updateWorkspaceScreenOrder(mLauncher, mScreenOrder); 859 860 return newId; 861 } 862 863 public CellLayout getScreenWithId(long screenId) { 864 CellLayout layout = mWorkspaceScreens.get(screenId); 865 return layout; 866 } 867 868 public long getIdForScreen(CellLayout layout) { 869 Iterator<Long> iter = mWorkspaceScreens.keySet().iterator(); 870 while (iter.hasNext()) { 871 long id = iter.next(); 872 if (mWorkspaceScreens.get(id) == layout) { 873 return id; 874 } 875 } 876 return -1; 877 } 878 879 public int getPageIndexForScreenId(long screenId) { 880 return indexOfChild(mWorkspaceScreens.get(screenId)); 881 } 882 883 public long getScreenIdForPageIndex(int index) { 884 if (0 <= index && index < mScreenOrder.size()) { 885 return mScreenOrder.get(index); 886 } 887 return -1; 888 } 889 890 ArrayList<Long> getScreenOrder() { 891 return mScreenOrder; 892 } 893 894 public void stripEmptyScreens() { 895 // Log to disk 896 Launcher.addDumpLog(TAG, "11683562 - stripEmptyScreens()", true); 897 898 if (mLauncher.isWorkspaceLoading()) { 899 // Don't strip empty screens if the workspace is still loading. 900 // This is dangerous and can result in data loss. 901 Launcher.addDumpLog(TAG, " - workspace loading, skip", true); 902 return; 903 } 904 905 if (isPageMoving()) { 906 mStripScreensOnPageStopMoving = true; 907 return; 908 } 909 910 int currentPage = getNextPage(); 911 ArrayList<Long> removeScreens = new ArrayList<Long>(); 912 for (Long id: mWorkspaceScreens.keySet()) { 913 CellLayout cl = mWorkspaceScreens.get(id); 914 if (id >= 0 && cl.getShortcutsAndWidgets().getChildCount() == 0) { 915 removeScreens.add(id); 916 } 917 } 918 919 // We enforce at least one page to add new items to. In the case that we remove the last 920 // such screen, we convert the last screen to the empty screen 921 int minScreens = 1 + numCustomPages(); 922 923 int pageShift = 0; 924 for (Long id: removeScreens) { 925 Launcher.addDumpLog(TAG, "11683562 - removing id: " + id, true); 926 CellLayout cl = mWorkspaceScreens.get(id); 927 mWorkspaceScreens.remove(id); 928 mScreenOrder.remove(id); 929 930 if (getChildCount() > minScreens) { 931 if (indexOfChild(cl) < currentPage) { 932 pageShift++; 933 } 934 removeView(cl); 935 } else { 936 // if this is the last non-custom content screen, convert it to the empty screen 937 mRemoveEmptyScreenRunnable = null; 938 mWorkspaceScreens.put(EXTRA_EMPTY_SCREEN_ID, cl); 939 mScreenOrder.add(EXTRA_EMPTY_SCREEN_ID); 940 } 941 } 942 943 if (!removeScreens.isEmpty()) { 944 // Update the model if we have changed any screens 945 mLauncher.getModel().updateWorkspaceScreenOrder(mLauncher, mScreenOrder); 946 } 947 948 if (pageShift >= 0) { 949 setCurrentPage(currentPage - pageShift); 950 } 951 } 952 953 // See implementation for parameter definition. 954 void addInScreen(View child, long container, long screenId, 955 int x, int y, int spanX, int spanY) { 956 addInScreen(child, container, screenId, x, y, spanX, spanY, false, false); 957 } 958 959 // At bind time, we use the rank (screenId) to compute x and y for hotseat items. 960 // See implementation for parameter definition. 961 void addInScreenFromBind(View child, long container, long screenId, int x, int y, 962 int spanX, int spanY) { 963 addInScreen(child, container, screenId, x, y, spanX, spanY, false, true); 964 } 965 966 // See implementation for parameter definition. 967 void addInScreen(View child, long container, long screenId, int x, int y, int spanX, int spanY, 968 boolean insert) { 969 addInScreen(child, container, screenId, x, y, spanX, spanY, insert, false); 970 } 971 972 /** 973 * Adds the specified child in the specified screen. The position and dimension of 974 * the child are defined by x, y, spanX and spanY. 975 * 976 * @param child The child to add in one of the workspace's screens. 977 * @param screenId The screen in which to add the child. 978 * @param x The X position of the child in the screen's grid. 979 * @param y The Y position of the child in the screen's grid. 980 * @param spanX The number of cells spanned horizontally by the child. 981 * @param spanY The number of cells spanned vertically by the child. 982 * @param insert When true, the child is inserted at the beginning of the children list. 983 * @param computeXYFromRank When true, we use the rank (stored in screenId) to compute 984 * the x and y position in which to place hotseat items. Otherwise 985 * we use the x and y position to compute the rank. 986 */ 987 void addInScreen(View child, long container, long screenId, int x, int y, int spanX, int spanY, 988 boolean insert, boolean computeXYFromRank) { 989 if (container == LauncherSettings.Favorites.CONTAINER_DESKTOP) { 990 if (getScreenWithId(screenId) == null) { 991 Log.e(TAG, "Skipping child, screenId " + screenId + " not found"); 992 // DEBUGGING - Print out the stack trace to see where we are adding from 993 new Throwable().printStackTrace(); 994 return; 995 } 996 } 997 if (screenId == EXTRA_EMPTY_SCREEN_ID) { 998 // This should never happen 999 throw new RuntimeException("Screen id should not be EXTRA_EMPTY_SCREEN_ID"); 1000 } 1001 1002 final CellLayout layout; 1003 if (container == LauncherSettings.Favorites.CONTAINER_HOTSEAT) { 1004 layout = mLauncher.getHotseat().getLayout(); 1005 child.setOnKeyListener(null); 1006 1007 // Hide folder title in the hotseat 1008 if (child instanceof FolderIcon) { 1009 ((FolderIcon) child).setTextVisible(false); 1010 } 1011 1012 if (computeXYFromRank) { 1013 x = mLauncher.getHotseat().getCellXFromOrder((int) screenId); 1014 y = mLauncher.getHotseat().getCellYFromOrder((int) screenId); 1015 } else { 1016 screenId = mLauncher.getHotseat().getOrderInHotseat(x, y); 1017 } 1018 } else { 1019 // Show folder title if not in the hotseat 1020 if (child instanceof FolderIcon) { 1021 ((FolderIcon) child).setTextVisible(true); 1022 } 1023 layout = getScreenWithId(screenId); 1024 child.setOnKeyListener(new IconKeyEventListener()); 1025 } 1026 1027 ViewGroup.LayoutParams genericLp = child.getLayoutParams(); 1028 CellLayout.LayoutParams lp; 1029 if (genericLp == null || !(genericLp instanceof CellLayout.LayoutParams)) { 1030 lp = new CellLayout.LayoutParams(x, y, spanX, spanY); 1031 } else { 1032 lp = (CellLayout.LayoutParams) genericLp; 1033 lp.cellX = x; 1034 lp.cellY = y; 1035 lp.cellHSpan = spanX; 1036 lp.cellVSpan = spanY; 1037 } 1038 1039 if (spanX < 0 && spanY < 0) { 1040 lp.isLockedToGrid = false; 1041 } 1042 1043 // Get the canonical child id to uniquely represent this view in this screen 1044 ItemInfo info = (ItemInfo) child.getTag(); 1045 int childId = mLauncher.getViewIdForItem(info); 1046 1047 boolean markCellsAsOccupied = !(child instanceof Folder); 1048 if (!layout.addViewToCellLayout(child, insert ? 0 : -1, childId, lp, markCellsAsOccupied)) { 1049 // TODO: This branch occurs when the workspace is adding views 1050 // outside of the defined grid 1051 // maybe we should be deleting these items from the LauncherModel? 1052 Launcher.addDumpLog(TAG, "Failed to add to item at (" + lp.cellX + "," + lp.cellY + ") to CellLayout", true); 1053 } 1054 1055 if (!(child instanceof Folder)) { 1056 child.setHapticFeedbackEnabled(false); 1057 child.setOnLongClickListener(mLongClickListener); 1058 } 1059 if (child instanceof DropTarget) { 1060 mDragController.addDropTarget((DropTarget) child); 1061 } 1062 } 1063 1064 /** 1065 * Called directly from a CellLayout (not by the framework), after we've been added as a 1066 * listener via setOnInterceptTouchEventListener(). This allows us to tell the CellLayout 1067 * that it should intercept touch events, which is not something that is normally supported. 1068 */ 1069 @Override 1070 public boolean onTouch(View v, MotionEvent event) { 1071 return (isSmall() || !isFinishedSwitchingState()) 1072 || (!isSmall() && indexOfChild(v) != mCurrentPage); 1073 } 1074 1075 public boolean isSwitchingState() { 1076 return mIsSwitchingState; 1077 } 1078 1079 /** This differs from isSwitchingState in that we take into account how far the transition 1080 * has completed. */ 1081 public boolean isFinishedSwitchingState() { 1082 return !mIsSwitchingState || (mTransitionProgress > 0.5f); 1083 } 1084 1085 protected void onWindowVisibilityChanged (int visibility) { 1086 mLauncher.onWindowVisibilityChanged(visibility); 1087 } 1088 1089 @Override 1090 public boolean dispatchUnhandledMove(View focused, int direction) { 1091 if (isSmall() || !isFinishedSwitchingState()) { 1092 // when the home screens are shrunken, shouldn't allow side-scrolling 1093 return false; 1094 } 1095 return super.dispatchUnhandledMove(focused, direction); 1096 } 1097 1098 @Override 1099 public boolean onInterceptTouchEvent(MotionEvent ev) { 1100 switch (ev.getAction() & MotionEvent.ACTION_MASK) { 1101 case MotionEvent.ACTION_DOWN: 1102 mXDown = ev.getX(); 1103 mYDown = ev.getY(); 1104 mTouchDownTime = System.currentTimeMillis(); 1105 break; 1106 case MotionEvent.ACTION_POINTER_UP: 1107 case MotionEvent.ACTION_UP: 1108 if (mTouchState == TOUCH_STATE_REST) { 1109 final CellLayout currentPage = (CellLayout) getChildAt(mCurrentPage); 1110 if (!currentPage.lastDownOnOccupiedCell()) { 1111 onWallpaperTap(ev); 1112 } 1113 } 1114 } 1115 return super.onInterceptTouchEvent(ev); 1116 } 1117 1118 protected void reinflateWidgetsIfNecessary() { 1119 final int clCount = getChildCount(); 1120 for (int i = 0; i < clCount; i++) { 1121 CellLayout cl = (CellLayout) getChildAt(i); 1122 ShortcutAndWidgetContainer swc = cl.getShortcutsAndWidgets(); 1123 final int itemCount = swc.getChildCount(); 1124 for (int j = 0; j < itemCount; j++) { 1125 View v = swc.getChildAt(j); 1126 1127 if (v.getTag() instanceof LauncherAppWidgetInfo) { 1128 LauncherAppWidgetInfo info = (LauncherAppWidgetInfo) v.getTag(); 1129 LauncherAppWidgetHostView lahv = (LauncherAppWidgetHostView) info.hostView; 1130 if (lahv != null && lahv.orientationChangedSincedInflation()) { 1131 mLauncher.removeAppWidget(info); 1132 // Remove the current widget which is inflated with the wrong orientation 1133 cl.removeView(lahv); 1134 mLauncher.bindAppWidget(info); 1135 } 1136 } 1137 } 1138 } 1139 } 1140 1141 @Override 1142 protected void determineScrollingStart(MotionEvent ev) { 1143 if (!isFinishedSwitchingState()) return; 1144 1145 float deltaX = ev.getX() - mXDown; 1146 float absDeltaX = Math.abs(deltaX); 1147 float absDeltaY = Math.abs(ev.getY() - mYDown); 1148 1149 if (Float.compare(absDeltaX, 0f) == 0) return; 1150 1151 float slope = absDeltaY / absDeltaX; 1152 float theta = (float) Math.atan(slope); 1153 1154 if (absDeltaX > mTouchSlop || absDeltaY > mTouchSlop) { 1155 cancelCurrentPageLongPress(); 1156 } 1157 1158 boolean passRightSwipesToCustomContent = 1159 (mTouchDownTime - mCustomContentShowTime) > CUSTOM_CONTENT_GESTURE_DELAY; 1160 1161 boolean swipeInIgnoreDirection = isLayoutRtl() ? deltaX < 0 : deltaX > 0; 1162 if (swipeInIgnoreDirection && getScreenIdForPageIndex(getCurrentPage()) == 1163 CUSTOM_CONTENT_SCREEN_ID && passRightSwipesToCustomContent) { 1164 // Pass swipes to the right to the custom content page. 1165 return; 1166 } 1167 1168 if (theta > MAX_SWIPE_ANGLE) { 1169 // Above MAX_SWIPE_ANGLE, we don't want to ever start scrolling the workspace 1170 return; 1171 } else if (theta > START_DAMPING_TOUCH_SLOP_ANGLE) { 1172 // Above START_DAMPING_TOUCH_SLOP_ANGLE and below MAX_SWIPE_ANGLE, we want to 1173 // increase the touch slop to make it harder to begin scrolling the workspace. This 1174 // results in vertically scrolling widgets to more easily. The higher the angle, the 1175 // more we increase touch slop. 1176 theta -= START_DAMPING_TOUCH_SLOP_ANGLE; 1177 float extraRatio = (float) 1178 Math.sqrt((theta / (MAX_SWIPE_ANGLE - START_DAMPING_TOUCH_SLOP_ANGLE))); 1179 super.determineScrollingStart(ev, 1 + TOUCH_SLOP_DAMPING_FACTOR * extraRatio); 1180 } else { 1181 // Below START_DAMPING_TOUCH_SLOP_ANGLE, we don't do anything special 1182 super.determineScrollingStart(ev); 1183 } 1184 } 1185 1186 protected void onPageBeginMoving() { 1187 super.onPageBeginMoving(); 1188 1189 if (isHardwareAccelerated()) { 1190 updateChildrenLayersEnabled(false); 1191 } else { 1192 if (mNextPage != INVALID_PAGE) { 1193 // we're snapping to a particular screen 1194 enableChildrenCache(mCurrentPage, mNextPage); 1195 } else { 1196 // this is when user is actively dragging a particular screen, they might 1197 // swipe it either left or right (but we won't advance by more than one screen) 1198 enableChildrenCache(mCurrentPage - 1, mCurrentPage + 1); 1199 } 1200 } 1201 1202 // If we are not fading in adjacent screens, we still need to restore the alpha in case the 1203 // user scrolls while we are transitioning (should not affect dispatchDraw optimizations) 1204 if (!mWorkspaceFadeInAdjacentScreens) { 1205 for (int i = 0; i < getChildCount(); ++i) { 1206 ((CellLayout) getPageAt(i)).setShortcutAndWidgetAlpha(1f); 1207 } 1208 } 1209 } 1210 1211 protected void onPageEndMoving() { 1212 super.onPageEndMoving(); 1213 1214 if (isHardwareAccelerated()) { 1215 updateChildrenLayersEnabled(false); 1216 } else { 1217 clearChildrenCache(); 1218 } 1219 1220 if (mDragController.isDragging()) { 1221 if (isSmall()) { 1222 // If we are in springloaded mode, then force an event to check if the current touch 1223 // is under a new page (to scroll to) 1224 mDragController.forceTouchMove(); 1225 } 1226 } 1227 1228 if (mDelayedResizeRunnable != null) { 1229 mDelayedResizeRunnable.run(); 1230 mDelayedResizeRunnable = null; 1231 } 1232 1233 if (mDelayedSnapToPageRunnable != null) { 1234 mDelayedSnapToPageRunnable.run(); 1235 mDelayedSnapToPageRunnable = null; 1236 } 1237 if (mStripScreensOnPageStopMoving) { 1238 stripEmptyScreens(); 1239 mStripScreensOnPageStopMoving = false; 1240 } 1241 } 1242 1243 @Override 1244 protected void notifyPageSwitchListener() { 1245 super.notifyPageSwitchListener(); 1246 Launcher.setScreen(getNextPage()); 1247 1248 if (hasCustomContent() && getNextPage() == 0 && !mCustomContentShowing) { 1249 mCustomContentShowing = true; 1250 if (mCustomContentCallbacks != null) { 1251 mCustomContentCallbacks.onShow(false); 1252 mCustomContentShowTime = System.currentTimeMillis(); 1253 mLauncher.updateVoiceButtonProxyVisible(false); 1254 } 1255 } else if (hasCustomContent() && getNextPage() != 0 && mCustomContentShowing) { 1256 mCustomContentShowing = false; 1257 if (mCustomContentCallbacks != null) { 1258 mCustomContentCallbacks.onHide(); 1259 mLauncher.resetQSBScroll(); 1260 mLauncher.updateVoiceButtonProxyVisible(false); 1261 } 1262 } 1263 if (getPageIndicator() != null) { 1264 getPageIndicator().setContentDescription(getPageIndicatorDescription()); 1265 } 1266 } 1267 1268 protected CustomContentCallbacks getCustomContentCallbacks() { 1269 return mCustomContentCallbacks; 1270 } 1271 1272 protected void setWallpaperDimension() { 1273 new AsyncTask<Void, Void, Void>() { 1274 public Void doInBackground(Void ... args) { 1275 String spKey = WallpaperCropActivity.getSharedPreferencesKey(); 1276 SharedPreferences sp = 1277 mLauncher.getSharedPreferences(spKey, Context.MODE_MULTI_PROCESS); 1278 LauncherWallpaperPickerActivity.suggestWallpaperDimension(mLauncher.getResources(), 1279 sp, mLauncher.getWindowManager(), mWallpaperManager, 1280 mLauncher.overrideWallpaperDimensions()); 1281 return null; 1282 } 1283 }.executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR, (Void) null); 1284 } 1285 1286 protected void snapToPage(int whichPage, Runnable r) { 1287 snapToPage(whichPage, SLOW_PAGE_SNAP_ANIMATION_DURATION, r); 1288 } 1289 1290 protected void snapToPage(int whichPage, int duration, Runnable r) { 1291 if (mDelayedSnapToPageRunnable != null) { 1292 mDelayedSnapToPageRunnable.run(); 1293 } 1294 mDelayedSnapToPageRunnable = r; 1295 snapToPage(whichPage, duration); 1296 } 1297 1298 public void snapToScreenId(long screenId) { 1299 snapToScreenId(screenId, null); 1300 } 1301 1302 protected void snapToScreenId(long screenId, Runnable r) { 1303 snapToPage(getPageIndexForScreenId(screenId), r); 1304 } 1305 1306 class WallpaperOffsetInterpolator implements Choreographer.FrameCallback { 1307 float mFinalOffset = 0.0f; 1308 float mCurrentOffset = 0.5f; // to force an initial update 1309 boolean mWaitingForUpdate; 1310 Choreographer mChoreographer; 1311 Interpolator mInterpolator; 1312 boolean mAnimating; 1313 long mAnimationStartTime; 1314 float mAnimationStartOffset; 1315 private final int ANIMATION_DURATION = 250; 1316 // Don't use all the wallpaper for parallax until you have at least this many pages 1317 private final int MIN_PARALLAX_PAGE_SPAN = 3; 1318 int mNumScreens; 1319 1320 public WallpaperOffsetInterpolator() { 1321 mChoreographer = Choreographer.getInstance(); 1322 mInterpolator = new DecelerateInterpolator(1.5f); 1323 } 1324 1325 @Override 1326 public void doFrame(long frameTimeNanos) { 1327 updateOffset(false); 1328 } 1329 1330 private void updateOffset(boolean force) { 1331 if (mWaitingForUpdate || force) { 1332 mWaitingForUpdate = false; 1333 if (computeScrollOffset() && mWindowToken != null) { 1334 try { 1335 mWallpaperManager.setWallpaperOffsets(mWindowToken, 1336 mWallpaperOffset.getCurrX(), 0.5f); 1337 setWallpaperOffsetSteps(); 1338 } catch (IllegalArgumentException e) { 1339 Log.e(TAG, "Error updating wallpaper offset: " + e); 1340 } 1341 } 1342 } 1343 } 1344 1345 public boolean computeScrollOffset() { 1346 final float oldOffset = mCurrentOffset; 1347 if (mAnimating) { 1348 long durationSinceAnimation = System.currentTimeMillis() - mAnimationStartTime; 1349 float t0 = durationSinceAnimation / (float) ANIMATION_DURATION; 1350 float t1 = mInterpolator.getInterpolation(t0); 1351 mCurrentOffset = mAnimationStartOffset + 1352 (mFinalOffset - mAnimationStartOffset) * t1; 1353 mAnimating = durationSinceAnimation < ANIMATION_DURATION; 1354 } else { 1355 mCurrentOffset = mFinalOffset; 1356 } 1357 1358 if (Math.abs(mCurrentOffset - mFinalOffset) > 0.0000001f) { 1359 scheduleUpdate(); 1360 } 1361 if (Math.abs(oldOffset - mCurrentOffset) > 0.0000001f) { 1362 return true; 1363 } 1364 return false; 1365 } 1366 1367 private float wallpaperOffsetForCurrentScroll() { 1368 if (getChildCount() <= 1) { 1369 return 0; 1370 } 1371 1372 // Exclude the leftmost page 1373 int emptyExtraPages = numEmptyScreensToIgnore(); 1374 int firstIndex = numCustomPages(); 1375 // Exclude the last extra empty screen (if we have > MIN_PARALLAX_PAGE_SPAN pages) 1376 int lastIndex = getChildCount() - 1 - emptyExtraPages; 1377 if (isLayoutRtl()) { 1378 int temp = firstIndex; 1379 firstIndex = lastIndex; 1380 lastIndex = temp; 1381 } 1382 1383 int firstPageScrollX = getScrollForPage(firstIndex); 1384 int scrollRange = getScrollForPage(lastIndex) - firstPageScrollX; 1385 if (scrollRange == 0) { 1386 return 0; 1387 } else { 1388 // TODO: do different behavior if it's a live wallpaper? 1389 // Sometimes the left parameter of the pages is animated during a layout transition; 1390 // this parameter offsets it to keep the wallpaper from animating as well 1391 int adjustedScroll = 1392 getScrollX() - firstPageScrollX - getLayoutTransitionOffsetForPage(0); 1393 float offset = Math.min(1, adjustedScroll / (float) scrollRange); 1394 offset = Math.max(0, offset); 1395 // Don't use up all the wallpaper parallax until you have at least 1396 // MIN_PARALLAX_PAGE_SPAN pages 1397 int numScrollingPages = getNumScreensExcludingEmptyAndCustom(); 1398 int parallaxPageSpan; 1399 if (mWallpaperIsLiveWallpaper) { 1400 parallaxPageSpan = numScrollingPages - 1; 1401 } else { 1402 parallaxPageSpan = Math.max(MIN_PARALLAX_PAGE_SPAN, numScrollingPages - 1); 1403 } 1404 mNumPagesForWallpaperParallax = parallaxPageSpan; 1405 1406 // On RTL devices, push the wallpaper offset to the right if we don't have enough 1407 // pages (ie if numScrollingPages < MIN_PARALLAX_PAGE_SPAN) 1408 int padding = isLayoutRtl() ? parallaxPageSpan - numScrollingPages + 1 : 0; 1409 return offset * (padding + numScrollingPages - 1) / parallaxPageSpan; 1410 } 1411 } 1412 1413 private int numEmptyScreensToIgnore() { 1414 int numScrollingPages = getChildCount() - numCustomPages(); 1415 if (numScrollingPages >= MIN_PARALLAX_PAGE_SPAN && hasExtraEmptyScreen()) { 1416 return 1; 1417 } else { 1418 return 0; 1419 } 1420 } 1421 1422 private int getNumScreensExcludingEmptyAndCustom() { 1423 int numScrollingPages = getChildCount() - numEmptyScreensToIgnore() - numCustomPages(); 1424 return numScrollingPages; 1425 } 1426 1427 public void syncWithScroll() { 1428 float offset = wallpaperOffsetForCurrentScroll(); 1429 mWallpaperOffset.setFinalX(offset); 1430 updateOffset(true); 1431 } 1432 1433 public float getCurrX() { 1434 return mCurrentOffset; 1435 } 1436 1437 public float getFinalX() { 1438 return mFinalOffset; 1439 } 1440 1441 private void animateToFinal() { 1442 mAnimating = true; 1443 mAnimationStartOffset = mCurrentOffset; 1444 mAnimationStartTime = System.currentTimeMillis(); 1445 } 1446 1447 private void setWallpaperOffsetSteps() { 1448 // Set wallpaper offset steps (1 / (number of screens - 1)) 1449 float xOffset = 1.0f / mNumPagesForWallpaperParallax; 1450 if (xOffset != mLastSetWallpaperOffsetSteps) { 1451 mWallpaperManager.setWallpaperOffsetSteps(xOffset, 1.0f); 1452 mLastSetWallpaperOffsetSteps = xOffset; 1453 } 1454 } 1455 1456 public void setFinalX(float x) { 1457 scheduleUpdate(); 1458 mFinalOffset = Math.max(0f, Math.min(x, 1.0f)); 1459 if (getNumScreensExcludingEmptyAndCustom() != mNumScreens) { 1460 if (mNumScreens > 0) { 1461 // Don't animate if we're going from 0 screens 1462 animateToFinal(); 1463 } 1464 mNumScreens = getNumScreensExcludingEmptyAndCustom(); 1465 } 1466 } 1467 1468 private void scheduleUpdate() { 1469 if (!mWaitingForUpdate) { 1470 mChoreographer.postFrameCallback(this); 1471 mWaitingForUpdate = true; 1472 } 1473 } 1474 1475 public void jumpToFinal() { 1476 mCurrentOffset = mFinalOffset; 1477 } 1478 } 1479 1480 @Override 1481 public void computeScroll() { 1482 super.computeScroll(); 1483 mWallpaperOffset.syncWithScroll(); 1484 } 1485 1486 @Override 1487 public void announceForAccessibility(CharSequence text) { 1488 // Don't announce if apps is on top of us. 1489 if (!mLauncher.isAllAppsVisible()) { 1490 super.announceForAccessibility(text); 1491 } 1492 } 1493 1494 void showOutlines() { 1495 if (!isSmall() && !mIsSwitchingState) { 1496 if (mChildrenOutlineFadeOutAnimation != null) mChildrenOutlineFadeOutAnimation.cancel(); 1497 if (mChildrenOutlineFadeInAnimation != null) mChildrenOutlineFadeInAnimation.cancel(); 1498 mChildrenOutlineFadeInAnimation = LauncherAnimUtils.ofFloat(this, "childrenOutlineAlpha", 1.0f); 1499 mChildrenOutlineFadeInAnimation.setDuration(CHILDREN_OUTLINE_FADE_IN_DURATION); 1500 mChildrenOutlineFadeInAnimation.start(); 1501 } 1502 } 1503 1504 void hideOutlines() { 1505 if (!isSmall() && !mIsSwitchingState) { 1506 if (mChildrenOutlineFadeInAnimation != null) mChildrenOutlineFadeInAnimation.cancel(); 1507 if (mChildrenOutlineFadeOutAnimation != null) mChildrenOutlineFadeOutAnimation.cancel(); 1508 mChildrenOutlineFadeOutAnimation = LauncherAnimUtils.ofFloat(this, "childrenOutlineAlpha", 0.0f); 1509 mChildrenOutlineFadeOutAnimation.setDuration(CHILDREN_OUTLINE_FADE_OUT_DURATION); 1510 mChildrenOutlineFadeOutAnimation.setStartDelay(CHILDREN_OUTLINE_FADE_OUT_DELAY); 1511 mChildrenOutlineFadeOutAnimation.start(); 1512 } 1513 } 1514 1515 public void showOutlinesTemporarily() { 1516 if (!mIsPageMoving && !isTouchActive()) { 1517 snapToPage(mCurrentPage); 1518 } 1519 } 1520 1521 public void setChildrenOutlineAlpha(float alpha) { 1522 mChildrenOutlineAlpha = alpha; 1523 for (int i = 0; i < getChildCount(); i++) { 1524 CellLayout cl = (CellLayout) getChildAt(i); 1525 cl.setBackgroundAlpha(alpha); 1526 } 1527 } 1528 1529 public float getChildrenOutlineAlpha() { 1530 return mChildrenOutlineAlpha; 1531 } 1532 1533 void disableBackground() { 1534 mDrawBackground = false; 1535 } 1536 void enableBackground() { 1537 mDrawBackground = true; 1538 } 1539 1540 private void animateBackgroundGradient(float finalAlpha, boolean animated) { 1541 if (mBackground == null) return; 1542 if (mBackgroundFadeInAnimation != null) { 1543 mBackgroundFadeInAnimation.cancel(); 1544 mBackgroundFadeInAnimation = null; 1545 } 1546 if (mBackgroundFadeOutAnimation != null) { 1547 mBackgroundFadeOutAnimation.cancel(); 1548 mBackgroundFadeOutAnimation = null; 1549 } 1550 float startAlpha = getBackgroundAlpha(); 1551 if (finalAlpha != startAlpha) { 1552 if (animated) { 1553 mBackgroundFadeOutAnimation = 1554 LauncherAnimUtils.ofFloat(this, startAlpha, finalAlpha); 1555 mBackgroundFadeOutAnimation.addUpdateListener(new AnimatorUpdateListener() { 1556 public void onAnimationUpdate(ValueAnimator animation) { 1557 setBackgroundAlpha(((Float) animation.getAnimatedValue()).floatValue()); 1558 } 1559 }); 1560 mBackgroundFadeOutAnimation.setInterpolator(new DecelerateInterpolator(1.5f)); 1561 mBackgroundFadeOutAnimation.setDuration(BACKGROUND_FADE_OUT_DURATION); 1562 mBackgroundFadeOutAnimation.start(); 1563 } else { 1564 setBackgroundAlpha(finalAlpha); 1565 } 1566 } 1567 } 1568 1569 public void setBackgroundAlpha(float alpha) { 1570 if (alpha != mBackgroundAlpha) { 1571 mBackgroundAlpha = alpha; 1572 invalidate(); 1573 } 1574 } 1575 1576 public float getBackgroundAlpha() { 1577 return mBackgroundAlpha; 1578 } 1579 1580 float backgroundAlphaInterpolator(float r) { 1581 float pivotA = 0.1f; 1582 float pivotB = 0.4f; 1583 if (r < pivotA) { 1584 return 0; 1585 } else if (r > pivotB) { 1586 return 1.0f; 1587 } else { 1588 return (r - pivotA)/(pivotB - pivotA); 1589 } 1590 } 1591 1592 private void updatePageAlphaValues(int screenCenter) { 1593 boolean isInOverscroll = mOverScrollX < 0 || mOverScrollX > mMaxScrollX; 1594 if (mWorkspaceFadeInAdjacentScreens && 1595 mState == State.NORMAL && 1596 !mIsSwitchingState && 1597 !isInOverscroll) { 1598 for (int i = numCustomPages(); i < getChildCount(); i++) { 1599 CellLayout child = (CellLayout) getChildAt(i); 1600 if (child != null) { 1601 float scrollProgress = getScrollProgress(screenCenter, child, i); 1602 float alpha = 1 - Math.abs(scrollProgress); 1603 child.getShortcutsAndWidgets().setAlpha(alpha); 1604 } 1605 } 1606 } 1607 } 1608 1609 private void setChildrenBackgroundAlphaMultipliers(float a) { 1610 for (int i = 0; i < getChildCount(); i++) { 1611 CellLayout child = (CellLayout) getChildAt(i); 1612 child.setBackgroundAlphaMultiplier(a); 1613 } 1614 } 1615 1616 public boolean hasCustomContent() { 1617 return (mScreenOrder.size() > 0 && mScreenOrder.get(0) == CUSTOM_CONTENT_SCREEN_ID); 1618 } 1619 1620 public int numCustomPages() { 1621 return hasCustomContent() ? 1 : 0; 1622 } 1623 1624 public boolean isOnOrMovingToCustomContent() { 1625 return hasCustomContent() && getNextPage() == 0; 1626 } 1627 1628 private void updateStateForCustomContent(int screenCenter) { 1629 float translationX = 0; 1630 float progress = 0; 1631 if (hasCustomContent()) { 1632 int index = mScreenOrder.indexOf(CUSTOM_CONTENT_SCREEN_ID); 1633 1634 int scrollDelta = getScrollX() - getScrollForPage(index) - 1635 getLayoutTransitionOffsetForPage(index); 1636 float scrollRange = getScrollForPage(index + 1) - getScrollForPage(index); 1637 translationX = scrollRange - scrollDelta; 1638 progress = (scrollRange - scrollDelta) / scrollRange; 1639 1640 if (isLayoutRtl()) { 1641 translationX = Math.min(0, translationX); 1642 } else { 1643 translationX = Math.max(0, translationX); 1644 } 1645 progress = Math.max(0, progress); 1646 } 1647 1648 if (Float.compare(progress, mLastCustomContentScrollProgress) == 0) return; 1649 1650 CellLayout cc = mWorkspaceScreens.get(CUSTOM_CONTENT_SCREEN_ID); 1651 if (progress > 0 && cc.getVisibility() != VISIBLE && !isSmall()) { 1652 cc.setVisibility(VISIBLE); 1653 } 1654 1655 mLastCustomContentScrollProgress = progress; 1656 1657 setBackgroundAlpha(progress * 0.8f); 1658 1659 if (mLauncher.getHotseat() != null) { 1660 mLauncher.getHotseat().setTranslationX(translationX); 1661 } 1662 1663 if (getPageIndicator() != null) { 1664 getPageIndicator().setTranslationX(translationX); 1665 } 1666 1667 if (mCustomContentCallbacks != null) { 1668 mCustomContentCallbacks.onScrollProgressChanged(progress); 1669 } 1670 } 1671 1672 @Override 1673 protected OnClickListener getPageIndicatorClickListener() { 1674 AccessibilityManager am = (AccessibilityManager) 1675 getContext().getSystemService(Context.ACCESSIBILITY_SERVICE); 1676 if (!am.isTouchExplorationEnabled()) { 1677 return null; 1678 } 1679 OnClickListener listener = new OnClickListener() { 1680 @Override 1681 public void onClick(View arg0) { 1682 enterOverviewMode(); 1683 } 1684 }; 1685 return listener; 1686 } 1687 1688 @Override 1689 protected void screenScrolled(int screenCenter) { 1690 final boolean isRtl = isLayoutRtl(); 1691 super.screenScrolled(screenCenter); 1692 1693 updatePageAlphaValues(screenCenter); 1694 updateStateForCustomContent(screenCenter); 1695 enableHwLayersOnVisiblePages(); 1696 1697 boolean shouldOverScroll = (mOverScrollX < 0 && (!hasCustomContent() || isLayoutRtl())) || 1698 (mOverScrollX > mMaxScrollX && (!hasCustomContent() || !isLayoutRtl())); 1699 1700 if (shouldOverScroll) { 1701 int index = 0; 1702 float pivotX = 0f; 1703 final float leftBiasedPivot = 0.25f; 1704 final float rightBiasedPivot = 0.75f; 1705 final int lowerIndex = 0; 1706 final int upperIndex = getChildCount() - 1; 1707 1708 final boolean isLeftPage = mOverScrollX < 0; 1709 index = (!isRtl && isLeftPage) || (isRtl && !isLeftPage) ? lowerIndex : upperIndex; 1710 pivotX = isLeftPage ? rightBiasedPivot : leftBiasedPivot; 1711 1712 CellLayout cl = (CellLayout) getChildAt(index); 1713 float scrollProgress = getScrollProgress(screenCenter, cl, index); 1714 cl.setOverScrollAmount(Math.abs(scrollProgress), isLeftPage); 1715 float rotation = -WORKSPACE_OVERSCROLL_ROTATION * scrollProgress; 1716 cl.setRotationY(rotation); 1717 1718 if (!mOverscrollTransformsSet || Float.compare(mLastOverscrollPivotX, pivotX) != 0) { 1719 mOverscrollTransformsSet = true; 1720 mLastOverscrollPivotX = pivotX; 1721 cl.setCameraDistance(mDensity * mCameraDistance); 1722 cl.setPivotX(cl.getMeasuredWidth() * pivotX); 1723 cl.setPivotY(cl.getMeasuredHeight() * 0.5f); 1724 cl.setOverscrollTransformsDirty(true); 1725 } 1726 } else { 1727 if (mOverscrollTransformsSet && getChildCount() > 0) { 1728 mOverscrollTransformsSet = false; 1729 ((CellLayout) getChildAt(0)).resetOverscrollTransforms(); 1730 ((CellLayout) getChildAt(getChildCount() - 1)).resetOverscrollTransforms(); 1731 } 1732 } 1733 } 1734 1735 @Override 1736 protected void overScroll(float amount) { 1737 acceleratedOverScroll(amount); 1738 } 1739 1740 protected void onAttachedToWindow() { 1741 super.onAttachedToWindow(); 1742 mWindowToken = getWindowToken(); 1743 computeScroll(); 1744 mDragController.setWindowToken(mWindowToken); 1745 } 1746 1747 protected void onDetachedFromWindow() { 1748 super.onDetachedFromWindow(); 1749 mWindowToken = null; 1750 } 1751 1752 protected void onResume() { 1753 if (getPageIndicator() != null) { 1754 // In case accessibility state has changed, we need to perform this on every 1755 // attach to window 1756 OnClickListener listener = getPageIndicatorClickListener(); 1757 if (listener != null) { 1758 getPageIndicator().setOnClickListener(listener); 1759 } 1760 } 1761 AccessibilityManager am = (AccessibilityManager) 1762 getContext().getSystemService(Context.ACCESSIBILITY_SERVICE); 1763 sAccessibilityEnabled = am.isEnabled(); 1764 1765 // Update wallpaper dimensions if they were changed since last onResume 1766 // (we also always set the wallpaper dimensions in the constructor) 1767 if (LauncherAppState.getInstance().hasWallpaperChangedSinceLastCheck()) { 1768 setWallpaperDimension(); 1769 } 1770 mWallpaperIsLiveWallpaper = mWallpaperManager.getWallpaperInfo() != null; 1771 // Force the wallpaper offset steps to be set again, because another app might have changed 1772 // them 1773 mLastSetWallpaperOffsetSteps = 0f; 1774 } 1775 1776 @Override 1777 protected void onLayout(boolean changed, int left, int top, int right, int bottom) { 1778 if (mFirstLayout && mCurrentPage >= 0 && mCurrentPage < getChildCount()) { 1779 mWallpaperOffset.syncWithScroll(); 1780 mWallpaperOffset.jumpToFinal(); 1781 } 1782 super.onLayout(changed, left, top, right, bottom); 1783 } 1784 1785 @Override 1786 protected void onDraw(Canvas canvas) { 1787 // Draw the background gradient if necessary 1788 if (mBackground != null && mBackgroundAlpha > 0.0f && mDrawBackground) { 1789 int alpha = (int) (mBackgroundAlpha * 255); 1790 mBackground.setAlpha(alpha); 1791 mBackground.setBounds(getScrollX(), 0, getScrollX() + getMeasuredWidth(), 1792 getMeasuredHeight()); 1793 mBackground.draw(canvas); 1794 } 1795 1796 super.onDraw(canvas); 1797 1798 // Call back to LauncherModel to finish binding after the first draw 1799 post(mBindPages); 1800 } 1801 1802 boolean isDrawingBackgroundGradient() { 1803 return (mBackground != null && mBackgroundAlpha > 0.0f && mDrawBackground); 1804 } 1805 1806 @Override 1807 protected boolean onRequestFocusInDescendants(int direction, Rect previouslyFocusedRect) { 1808 if (!mLauncher.isAllAppsVisible()) { 1809 final Folder openFolder = getOpenFolder(); 1810 if (openFolder != null) { 1811 return openFolder.requestFocus(direction, previouslyFocusedRect); 1812 } else { 1813 return super.onRequestFocusInDescendants(direction, previouslyFocusedRect); 1814 } 1815 } 1816 return false; 1817 } 1818 1819 @Override 1820 public int getDescendantFocusability() { 1821 if (isSmall()) { 1822 return ViewGroup.FOCUS_BLOCK_DESCENDANTS; 1823 } 1824 return super.getDescendantFocusability(); 1825 } 1826 1827 @Override 1828 public void addFocusables(ArrayList<View> views, int direction, int focusableMode) { 1829 if (!mLauncher.isAllAppsVisible()) { 1830 final Folder openFolder = getOpenFolder(); 1831 if (openFolder != null) { 1832 openFolder.addFocusables(views, direction); 1833 } else { 1834 super.addFocusables(views, direction, focusableMode); 1835 } 1836 } 1837 } 1838 1839 public boolean isSmall() { 1840 return mState == State.SMALL || mState == State.SPRING_LOADED || mState == State.OVERVIEW; 1841 } 1842 1843 void enableChildrenCache(int fromPage, int toPage) { 1844 if (fromPage > toPage) { 1845 final int temp = fromPage; 1846 fromPage = toPage; 1847 toPage = temp; 1848 } 1849 1850 final int screenCount = getChildCount(); 1851 1852 fromPage = Math.max(fromPage, 0); 1853 toPage = Math.min(toPage, screenCount - 1); 1854 1855 for (int i = fromPage; i <= toPage; i++) { 1856 final CellLayout layout = (CellLayout) getChildAt(i); 1857 layout.setChildrenDrawnWithCacheEnabled(true); 1858 layout.setChildrenDrawingCacheEnabled(true); 1859 } 1860 } 1861 1862 void clearChildrenCache() { 1863 final int screenCount = getChildCount(); 1864 for (int i = 0; i < screenCount; i++) { 1865 final CellLayout layout = (CellLayout) getChildAt(i); 1866 layout.setChildrenDrawnWithCacheEnabled(false); 1867 // In software mode, we don't want the items to continue to be drawn into bitmaps 1868 if (!isHardwareAccelerated()) { 1869 layout.setChildrenDrawingCacheEnabled(false); 1870 } 1871 } 1872 } 1873 1874 private void updateChildrenLayersEnabled(boolean force) { 1875 boolean small = mState == State.SMALL || mState == State.OVERVIEW || mIsSwitchingState; 1876 boolean enableChildrenLayers = force || small || mAnimatingViewIntoPlace || isPageMoving(); 1877 1878 if (enableChildrenLayers != mChildrenLayersEnabled) { 1879 mChildrenLayersEnabled = enableChildrenLayers; 1880 if (mChildrenLayersEnabled) { 1881 enableHwLayersOnVisiblePages(); 1882 } else { 1883 for (int i = 0; i < getPageCount(); i++) { 1884 final CellLayout cl = (CellLayout) getChildAt(i); 1885 cl.enableHardwareLayer(false); 1886 } 1887 } 1888 } 1889 } 1890 1891 private void enableHwLayersOnVisiblePages() { 1892 if (mChildrenLayersEnabled) { 1893 final int screenCount = getChildCount(); 1894 getVisiblePages(mTempVisiblePagesRange); 1895 int leftScreen = mTempVisiblePagesRange[0]; 1896 int rightScreen = mTempVisiblePagesRange[1]; 1897 if (leftScreen == rightScreen) { 1898 // make sure we're caching at least two pages always 1899 if (rightScreen < screenCount - 1) { 1900 rightScreen++; 1901 } else if (leftScreen > 0) { 1902 leftScreen--; 1903 } 1904 } 1905 1906 final CellLayout customScreen = mWorkspaceScreens.get(CUSTOM_CONTENT_SCREEN_ID); 1907 for (int i = 0; i < screenCount; i++) { 1908 final CellLayout layout = (CellLayout) getPageAt(i); 1909 1910 // enable layers between left and right screen inclusive, except for the 1911 // customScreen, which may animate its content during transitions. 1912 boolean enableLayer = layout != customScreen && 1913 leftScreen <= i && i <= rightScreen && shouldDrawChild(layout); 1914 layout.enableHardwareLayer(enableLayer); 1915 } 1916 } 1917 } 1918 1919 public void buildPageHardwareLayers() { 1920 // force layers to be enabled just for the call to buildLayer 1921 updateChildrenLayersEnabled(true); 1922 if (getWindowToken() != null) { 1923 final int childCount = getChildCount(); 1924 for (int i = 0; i < childCount; i++) { 1925 CellLayout cl = (CellLayout) getChildAt(i); 1926 cl.buildHardwareLayer(); 1927 } 1928 } 1929 updateChildrenLayersEnabled(false); 1930 } 1931 1932 protected void onWallpaperTap(MotionEvent ev) { 1933 final int[] position = mTempCell; 1934 getLocationOnScreen(position); 1935 1936 int pointerIndex = ev.getActionIndex(); 1937 position[0] += (int) ev.getX(pointerIndex); 1938 position[1] += (int) ev.getY(pointerIndex); 1939 1940 mWallpaperManager.sendWallpaperCommand(getWindowToken(), 1941 ev.getAction() == MotionEvent.ACTION_UP 1942 ? WallpaperManager.COMMAND_TAP : WallpaperManager.COMMAND_SECONDARY_TAP, 1943 position[0], position[1], 0, null); 1944 } 1945 1946 /* 1947 * This interpolator emulates the rate at which the perceived scale of an object changes 1948 * as its distance from a camera increases. When this interpolator is applied to a scale 1949 * animation on a view, it evokes the sense that the object is shrinking due to moving away 1950 * from the camera. 1951 */ 1952 static class ZInterpolator implements TimeInterpolator { 1953 private float focalLength; 1954 1955 public ZInterpolator(float foc) { 1956 focalLength = foc; 1957 } 1958 1959 public float getInterpolation(float input) { 1960 return (1.0f - focalLength / (focalLength + input)) / 1961 (1.0f - focalLength / (focalLength + 1.0f)); 1962 } 1963 } 1964 1965 /* 1966 * The exact reverse of ZInterpolator. 1967 */ 1968 static class InverseZInterpolator implements TimeInterpolator { 1969 private ZInterpolator zInterpolator; 1970 public InverseZInterpolator(float foc) { 1971 zInterpolator = new ZInterpolator(foc); 1972 } 1973 public float getInterpolation(float input) { 1974 return 1 - zInterpolator.getInterpolation(1 - input); 1975 } 1976 } 1977 1978 /* 1979 * ZInterpolator compounded with an ease-out. 1980 */ 1981 static class ZoomOutInterpolator implements TimeInterpolator { 1982 private final DecelerateInterpolator decelerate = new DecelerateInterpolator(0.75f); 1983 private final ZInterpolator zInterpolator = new ZInterpolator(0.13f); 1984 1985 public float getInterpolation(float input) { 1986 return decelerate.getInterpolation(zInterpolator.getInterpolation(input)); 1987 } 1988 } 1989 1990 /* 1991 * InvereZInterpolator compounded with an ease-out. 1992 */ 1993 static class ZoomInInterpolator implements TimeInterpolator { 1994 private final InverseZInterpolator inverseZInterpolator = new InverseZInterpolator(0.35f); 1995 private final DecelerateInterpolator decelerate = new DecelerateInterpolator(3.0f); 1996 1997 public float getInterpolation(float input) { 1998 return decelerate.getInterpolation(inverseZInterpolator.getInterpolation(input)); 1999 } 2000 } 2001 2002 private final ZoomInInterpolator mZoomInInterpolator = new ZoomInInterpolator(); 2003 2004 /* 2005 * 2006 * We call these methods (onDragStartedWithItemSpans/onDragStartedWithSize) whenever we 2007 * start a drag in Launcher, regardless of whether the drag has ever entered the Workspace 2008 * 2009 * These methods mark the appropriate pages as accepting drops (which alters their visual 2010 * appearance). 2011 * 2012 */ 2013 public void onDragStartedWithItem(View v) { 2014 final Canvas canvas = new Canvas(); 2015 2016 // The outline is used to visualize where the item will land if dropped 2017 mDragOutline = createDragOutline(v, canvas, DRAG_BITMAP_PADDING); 2018 } 2019 2020 private Rect getDrawableBounds(Drawable d) { 2021 Rect bounds = new Rect(); 2022 d.copyBounds(bounds); 2023 if (bounds.width() == 0 || bounds.height() == 0) { 2024 bounds.set(0, 0, d.getIntrinsicWidth(), d.getIntrinsicHeight()); 2025 } 2026 return bounds; 2027 } 2028 2029 public void onExternalDragStartedWithItem(View v) { 2030 final Canvas canvas = new Canvas(); 2031 2032 // Compose a drag bitmap with the view scaled to the icon size 2033 LauncherAppState app = LauncherAppState.getInstance(); 2034 DeviceProfile grid = app.getDynamicGrid().getDeviceProfile(); 2035 int iconSize = grid.iconSizePx; 2036 int bmpWidth = v.getMeasuredWidth(); 2037 int bmpHeight = v.getMeasuredHeight(); 2038 2039 // If this is a text view, use its drawable instead 2040 if (v instanceof TextView) { 2041 TextView tv = (TextView) v; 2042 Drawable d = tv.getCompoundDrawables()[1]; 2043 Rect bounds = getDrawableBounds(d); 2044 bmpWidth = bounds.width(); 2045 bmpHeight = bounds.height(); 2046 } 2047 2048 // Compose the bitmap to create the icon from 2049 Bitmap b = Bitmap.createBitmap(bmpWidth, bmpHeight, 2050 Bitmap.Config.ARGB_8888); 2051 Canvas c = new Canvas(b); 2052 drawDragView(v, c, 0, true); 2053 c.setBitmap(null); 2054 2055 // The outline is used to visualize where the item will land if dropped 2056 mDragOutline = createDragOutline(b, canvas, DRAG_BITMAP_PADDING, iconSize, iconSize, true); 2057 } 2058 2059 public void onDragStartedWithItem(PendingAddItemInfo info, Bitmap b, boolean clipAlpha) { 2060 final Canvas canvas = new Canvas(); 2061 2062 int[] size = estimateItemSize(info.spanX, info.spanY, info, false); 2063 2064 // The outline is used to visualize where the item will land if dropped 2065 mDragOutline = createDragOutline(b, canvas, DRAG_BITMAP_PADDING, size[0], 2066 size[1], clipAlpha); 2067 } 2068 2069 public void exitWidgetResizeMode() { 2070 DragLayer dragLayer = mLauncher.getDragLayer(); 2071 dragLayer.clearAllResizeFrames(); 2072 } 2073 2074 private void initAnimationArrays() { 2075 final int childCount = getChildCount(); 2076 if (mLastChildCount == childCount) return; 2077 2078 mOldBackgroundAlphas = new float[childCount]; 2079 mOldAlphas = new float[childCount]; 2080 mNewBackgroundAlphas = new float[childCount]; 2081 mNewAlphas = new float[childCount]; 2082 } 2083 2084 Animator getChangeStateAnimation(final State state, boolean animated) { 2085 return getChangeStateAnimation(state, animated, 0, -1); 2086 } 2087 2088 @Override 2089 protected void getFreeScrollPageRange(int[] range) { 2090 getOverviewModePages(range); 2091 } 2092 2093 private void getOverviewModePages(int[] range) { 2094 int start = numCustomPages(); 2095 int end = getChildCount() - 1; 2096 2097 range[0] = Math.max(0, Math.min(start, getChildCount() - 1)); 2098 range[1] = Math.max(0, end); 2099 } 2100 2101 protected void onStartReordering() { 2102 super.onStartReordering(); 2103 showOutlines(); 2104 // Reordering handles its own animations, disable the automatic ones. 2105 disableLayoutTransitions(); 2106 } 2107 2108 protected void onEndReordering() { 2109 super.onEndReordering(); 2110 2111 if (mLauncher.isWorkspaceLoading()) { 2112 // Invalid and dangerous operation if workspace is loading 2113 return; 2114 } 2115 2116 hideOutlines(); 2117 mScreenOrder.clear(); 2118 int count = getChildCount(); 2119 for (int i = 0; i < count; i++) { 2120 CellLayout cl = ((CellLayout) getChildAt(i)); 2121 mScreenOrder.add(getIdForScreen(cl)); 2122 } 2123 2124 mLauncher.getModel().updateWorkspaceScreenOrder(mLauncher, mScreenOrder); 2125 2126 // Re-enable auto layout transitions for page deletion. 2127 enableLayoutTransitions(); 2128 } 2129 2130 public boolean isInOverviewMode() { 2131 return mState == State.OVERVIEW; 2132 } 2133 2134 public boolean enterOverviewMode() { 2135 if (mTouchState != TOUCH_STATE_REST) { 2136 return false; 2137 } 2138 enableOverviewMode(true, -1, true); 2139 return true; 2140 } 2141 2142 public void exitOverviewMode(boolean animated) { 2143 exitOverviewMode(-1, animated); 2144 } 2145 2146 public void exitOverviewMode(int snapPage, boolean animated) { 2147 enableOverviewMode(false, snapPage, animated); 2148 } 2149 2150 private void enableOverviewMode(boolean enable, int snapPage, boolean animated) { 2151 State finalState = Workspace.State.OVERVIEW; 2152 if (!enable) { 2153 finalState = Workspace.State.NORMAL; 2154 } 2155 2156 Animator workspaceAnim = getChangeStateAnimation(finalState, animated, 0, snapPage); 2157 if (workspaceAnim != null) { 2158 onTransitionPrepare(); 2159 workspaceAnim.addListener(new AnimatorListenerAdapter() { 2160 @Override 2161 public void onAnimationEnd(Animator arg0) { 2162 onTransitionEnd(); 2163 } 2164 }); 2165 workspaceAnim.start(); 2166 } 2167 } 2168 2169 int getOverviewModeTranslationY() { 2170 LauncherAppState app = LauncherAppState.getInstance(); 2171 DeviceProfile grid = app.getDynamicGrid().getDeviceProfile(); 2172 Rect overviewBar = grid.getOverviewModeButtonBarRect(); 2173 2174 int availableHeight = getViewportHeight(); 2175 int scaledHeight = (int) (mOverviewModeShrinkFactor * getNormalChildHeight()); 2176 int offsetFromTopEdge = (availableHeight - scaledHeight) / 2; 2177 int offsetToCenterInOverview = (availableHeight - mInsets.top - overviewBar.height() 2178 - scaledHeight) / 2; 2179 2180 return -offsetFromTopEdge + mInsets.top + offsetToCenterInOverview; 2181 } 2182 2183 boolean shouldVoiceButtonProxyBeVisible() { 2184 if (isOnOrMovingToCustomContent()) { 2185 return false; 2186 } 2187 if (mState != State.NORMAL) { 2188 return false; 2189 } 2190 return true; 2191 } 2192 2193 public void updateInteractionForState() { 2194 if (mState != State.NORMAL) { 2195 mLauncher.onInteractionBegin(); 2196 } else { 2197 mLauncher.onInteractionEnd(); 2198 } 2199 } 2200 2201 private void setState(State state) { 2202 mState = state; 2203 updateInteractionForState(); 2204 updateAccessibilityFlags(); 2205 } 2206 2207 State getState() { 2208 return mState; 2209 } 2210 2211 private void updateAccessibilityFlags() { 2212 int accessible = mState == State.NORMAL ? 2213 ViewCompat.IMPORTANT_FOR_ACCESSIBILITY_YES : 2214 ViewCompat.IMPORTANT_FOR_ACCESSIBILITY_NO_HIDE_DESCENDANTS; 2215 setImportantForAccessibility(accessible); 2216 } 2217 2218 Animator getChangeStateAnimation(final State state, boolean animated, int delay, int snapPage) { 2219 if (mState == state) { 2220 return null; 2221 } 2222 2223 // Initialize animation arrays for the first time if necessary 2224 initAnimationArrays(); 2225 2226 AnimatorSet anim = animated ? LauncherAnimUtils.createAnimatorSet() : null; 2227 2228 final State oldState = mState; 2229 final boolean oldStateIsNormal = (oldState == State.NORMAL); 2230 final boolean oldStateIsSpringLoaded = (oldState == State.SPRING_LOADED); 2231 final boolean oldStateIsSmall = (oldState == State.SMALL); 2232 final boolean oldStateIsOverview = (oldState == State.OVERVIEW); 2233 setState(state); 2234 final boolean stateIsNormal = (state == State.NORMAL); 2235 final boolean stateIsSpringLoaded = (state == State.SPRING_LOADED); 2236 final boolean stateIsSmall = (state == State.SMALL); 2237 final boolean stateIsOverview = (state == State.OVERVIEW); 2238 float finalBackgroundAlpha = (stateIsSpringLoaded || stateIsOverview) ? 1.0f : 0f; 2239 float finalHotseatAndPageIndicatorAlpha = (stateIsOverview || stateIsSmall) ? 0f : 1f; 2240 float finalOverviewPanelAlpha = stateIsOverview ? 1f : 0f; 2241 float finalSearchBarAlpha = !stateIsNormal ? 0f : 1f; 2242 float finalWorkspaceTranslationY = stateIsOverview ? getOverviewModeTranslationY() : 0; 2243 2244 boolean workspaceToAllApps = (oldStateIsNormal && stateIsSmall); 2245 boolean allAppsToWorkspace = (oldStateIsSmall && stateIsNormal); 2246 boolean workspaceToOverview = (oldStateIsNormal && stateIsOverview); 2247 boolean overviewToWorkspace = (oldStateIsOverview && stateIsNormal); 2248 2249 mNewScale = 1.0f; 2250 2251 if (oldStateIsOverview) { 2252 disableFreeScroll(); 2253 } else if (stateIsOverview) { 2254 enableFreeScroll(); 2255 } 2256 2257 if (state != State.NORMAL) { 2258 if (stateIsSpringLoaded) { 2259 mNewScale = mSpringLoadedShrinkFactor; 2260 } else if (stateIsOverview) { 2261 mNewScale = mOverviewModeShrinkFactor; 2262 } else if (stateIsSmall){ 2263 mNewScale = mOverviewModeShrinkFactor - 0.3f; 2264 } 2265 if (workspaceToAllApps) { 2266 updateChildrenLayersEnabled(false); 2267 } 2268 } 2269 2270 final int duration; 2271 if (workspaceToAllApps) { 2272 duration = getResources().getInteger(R.integer.config_workspaceUnshrinkTime); 2273 } else if (workspaceToOverview || overviewToWorkspace) { 2274 duration = getResources().getInteger(R.integer.config_overviewTransitionTime); 2275 } else { 2276 duration = getResources().getInteger(R.integer.config_appsCustomizeWorkspaceShrinkTime); 2277 } 2278 2279 if (snapPage == -1) { 2280 snapPage = getPageNearestToCenterOfScreen(); 2281 } 2282 snapToPage(snapPage, duration, mZoomInInterpolator); 2283 2284 for (int i = 0; i < getChildCount(); i++) { 2285 final CellLayout cl = (CellLayout) getChildAt(i); 2286 boolean isCurrentPage = (i == snapPage); 2287 float initialAlpha = cl.getShortcutsAndWidgets().getAlpha(); 2288 float finalAlpha; 2289 if (stateIsSmall) { 2290 finalAlpha = 0f; 2291 } else if (stateIsNormal && mWorkspaceFadeInAdjacentScreens) { 2292 finalAlpha = (i == snapPage || i < numCustomPages()) ? 1f : 0f; 2293 } else { 2294 finalAlpha = 1f; 2295 } 2296 2297 // If we are animating to/from the small state, then hide the side pages and fade the 2298 // current page in 2299 if (!mIsSwitchingState) { 2300 if (workspaceToAllApps || allAppsToWorkspace) { 2301 if (allAppsToWorkspace && isCurrentPage) { 2302 initialAlpha = 0f; 2303 } else if (!isCurrentPage) { 2304 initialAlpha = finalAlpha = 0f; 2305 } 2306 cl.setShortcutAndWidgetAlpha(initialAlpha); 2307 } 2308 } 2309 2310 mOldAlphas[i] = initialAlpha; 2311 mNewAlphas[i] = finalAlpha; 2312 if (animated) { 2313 mOldBackgroundAlphas[i] = cl.getBackgroundAlpha(); 2314 mNewBackgroundAlphas[i] = finalBackgroundAlpha; 2315 } else { 2316 cl.setBackgroundAlpha(finalBackgroundAlpha); 2317 cl.setShortcutAndWidgetAlpha(finalAlpha); 2318 } 2319 } 2320 2321 final View searchBar = mLauncher.getQsbBar(); 2322 final View overviewPanel = mLauncher.getOverviewPanel(); 2323 final View hotseat = mLauncher.getHotseat(); 2324 final View pageIndicator = getPageIndicator(); 2325 if (animated) { 2326 anim.setDuration(duration); 2327 LauncherViewPropertyAnimator scale = new LauncherViewPropertyAnimator(this); 2328 scale.scaleX(mNewScale) 2329 .scaleY(mNewScale) 2330 .translationY(finalWorkspaceTranslationY) 2331 .setInterpolator(mZoomInInterpolator); 2332 anim.play(scale); 2333 for (int index = 0; index < getChildCount(); index++) { 2334 final int i = index; 2335 final CellLayout cl = (CellLayout) getChildAt(i); 2336 float currentAlpha = cl.getShortcutsAndWidgets().getAlpha(); 2337 if (mOldAlphas[i] == 0 && mNewAlphas[i] == 0) { 2338 cl.setBackgroundAlpha(mNewBackgroundAlphas[i]); 2339 cl.setShortcutAndWidgetAlpha(mNewAlphas[i]); 2340 } else { 2341 if (mOldAlphas[i] != mNewAlphas[i] || currentAlpha != mNewAlphas[i]) { 2342 LauncherViewPropertyAnimator alphaAnim = 2343 new LauncherViewPropertyAnimator(cl.getShortcutsAndWidgets()); 2344 alphaAnim.alpha(mNewAlphas[i]) 2345 .setInterpolator(mZoomInInterpolator); 2346 anim.play(alphaAnim); 2347 } 2348 if (mOldBackgroundAlphas[i] != 0 || 2349 mNewBackgroundAlphas[i] != 0) { 2350 ValueAnimator bgAnim = 2351 LauncherAnimUtils.ofFloat(cl, 0f, 1f); 2352 bgAnim.setInterpolator(mZoomInInterpolator); 2353 bgAnim.addUpdateListener(new LauncherAnimatorUpdateListener() { 2354 public void onAnimationUpdate(float a, float b) { 2355 cl.setBackgroundAlpha( 2356 a * mOldBackgroundAlphas[i] + 2357 b * mNewBackgroundAlphas[i]); 2358 } 2359 }); 2360 anim.play(bgAnim); 2361 } 2362 } 2363 } 2364 Animator pageIndicatorAlpha = null; 2365 if (pageIndicator != null) { 2366 pageIndicatorAlpha = new LauncherViewPropertyAnimator(pageIndicator) 2367 .alpha(finalHotseatAndPageIndicatorAlpha).withLayer(); 2368 pageIndicatorAlpha.addListener(new AlphaUpdateListener(pageIndicator)); 2369 } else { 2370 // create a dummy animation so we don't need to do null checks later 2371 pageIndicatorAlpha = ValueAnimator.ofFloat(0, 0); 2372 } 2373 2374 Animator hotseatAlpha = new LauncherViewPropertyAnimator(hotseat) 2375 .alpha(finalHotseatAndPageIndicatorAlpha).withLayer(); 2376 hotseatAlpha.addListener(new AlphaUpdateListener(hotseat)); 2377 2378 Animator searchBarAlpha = new LauncherViewPropertyAnimator(searchBar) 2379 .alpha(finalSearchBarAlpha).withLayer(); 2380 searchBarAlpha.addListener(new AlphaUpdateListener(searchBar)); 2381 2382 Animator overviewPanelAlpha = new LauncherViewPropertyAnimator(overviewPanel) 2383 .alpha(finalOverviewPanelAlpha).withLayer(); 2384 overviewPanelAlpha.addListener(new AlphaUpdateListener(overviewPanel)); 2385 2386 if (workspaceToOverview) { 2387 pageIndicatorAlpha.setInterpolator(new DecelerateInterpolator(2)); 2388 hotseatAlpha.setInterpolator(new DecelerateInterpolator(2)); 2389 overviewPanelAlpha.setInterpolator(null); 2390 } else if (overviewToWorkspace) { 2391 pageIndicatorAlpha.setInterpolator(null); 2392 hotseatAlpha.setInterpolator(null); 2393 overviewPanelAlpha.setInterpolator(new DecelerateInterpolator(2)); 2394 } 2395 searchBarAlpha.setInterpolator(null); 2396 2397 anim.play(overviewPanelAlpha); 2398 anim.play(hotseatAlpha); 2399 anim.play(searchBarAlpha); 2400 anim.play(pageIndicatorAlpha); 2401 anim.setStartDelay(delay); 2402 } else { 2403 overviewPanel.setAlpha(finalOverviewPanelAlpha); 2404 AlphaUpdateListener.updateVisibility(overviewPanel); 2405 hotseat.setAlpha(finalHotseatAndPageIndicatorAlpha); 2406 AlphaUpdateListener.updateVisibility(hotseat); 2407 if (pageIndicator != null) { 2408 pageIndicator.setAlpha(finalHotseatAndPageIndicatorAlpha); 2409 AlphaUpdateListener.updateVisibility(pageIndicator); 2410 } 2411 searchBar.setAlpha(finalSearchBarAlpha); 2412 AlphaUpdateListener.updateVisibility(searchBar); 2413 updateCustomContentVisibility(); 2414 setScaleX(mNewScale); 2415 setScaleY(mNewScale); 2416 setTranslationY(finalWorkspaceTranslationY); 2417 } 2418 mLauncher.updateVoiceButtonProxyVisible(false); 2419 2420 if (stateIsSpringLoaded) { 2421 // Right now we're covered by Apps Customize 2422 // Show the background gradient immediately, so the gradient will 2423 // be showing once AppsCustomize disappears 2424 animateBackgroundGradient(getResources().getInteger( 2425 R.integer.config_appsCustomizeSpringLoadedBgAlpha) / 100f, false); 2426 } else if (stateIsOverview) { 2427 animateBackgroundGradient(getResources().getInteger( 2428 R.integer.config_appsCustomizeSpringLoadedBgAlpha) / 100f, true); 2429 } else { 2430 // Fade the background gradient away 2431 animateBackgroundGradient(0f, animated); 2432 } 2433 return anim; 2434 } 2435 2436 static class AlphaUpdateListener implements AnimatorUpdateListener, AnimatorListener { 2437 View view; 2438 public AlphaUpdateListener(View v) { 2439 view = v; 2440 } 2441 2442 @Override 2443 public void onAnimationUpdate(ValueAnimator arg0) { 2444 updateVisibility(view); 2445 } 2446 2447 public static void updateVisibility(View view) { 2448 // We want to avoid the extra layout pass by setting the views to GONE unless 2449 // accessibility is on, in which case not setting them to GONE causes a glitch. 2450 int invisibleState = sAccessibilityEnabled ? GONE : INVISIBLE; 2451 if (view.getAlpha() < ALPHA_CUTOFF_THRESHOLD && view.getVisibility() != invisibleState) { 2452 view.setVisibility(invisibleState); 2453 } else if (view.getAlpha() > ALPHA_CUTOFF_THRESHOLD 2454 && view.getVisibility() != VISIBLE) { 2455 view.setVisibility(VISIBLE); 2456 } 2457 } 2458 2459 @Override 2460 public void onAnimationCancel(Animator arg0) { 2461 } 2462 2463 @Override 2464 public void onAnimationEnd(Animator arg0) { 2465 updateVisibility(view); 2466 } 2467 2468 @Override 2469 public void onAnimationRepeat(Animator arg0) { 2470 } 2471 2472 @Override 2473 public void onAnimationStart(Animator arg0) { 2474 // We want the views to be visible for animation, so fade-in/out is visible 2475 view.setVisibility(VISIBLE); 2476 } 2477 } 2478 2479 @Override 2480 public void onLauncherTransitionPrepare(Launcher l, boolean animated, boolean toWorkspace) { 2481 onTransitionPrepare(); 2482 } 2483 2484 @Override 2485 public void onLauncherTransitionStart(Launcher l, boolean animated, boolean toWorkspace) { 2486 } 2487 2488 @Override 2489 public void onLauncherTransitionStep(Launcher l, float t) { 2490 mTransitionProgress = t; 2491 } 2492 2493 @Override 2494 public void onLauncherTransitionEnd(Launcher l, boolean animated, boolean toWorkspace) { 2495 onTransitionEnd(); 2496 } 2497 2498 private void onTransitionPrepare() { 2499 mIsSwitchingState = true; 2500 2501 // Invalidate here to ensure that the pages are rendered during the state change transition. 2502 invalidate(); 2503 2504 updateChildrenLayersEnabled(false); 2505 hideCustomContentIfNecessary(); 2506 } 2507 2508 void updateCustomContentVisibility() { 2509 int visibility = mState == Workspace.State.NORMAL ? VISIBLE : INVISIBLE; 2510 if (hasCustomContent()) { 2511 mWorkspaceScreens.get(CUSTOM_CONTENT_SCREEN_ID).setVisibility(visibility); 2512 } 2513 } 2514 2515 void showCustomContentIfNecessary() { 2516 boolean show = mState == Workspace.State.NORMAL; 2517 if (show && hasCustomContent()) { 2518 mWorkspaceScreens.get(CUSTOM_CONTENT_SCREEN_ID).setVisibility(VISIBLE); 2519 } 2520 } 2521 2522 void hideCustomContentIfNecessary() { 2523 boolean hide = mState != Workspace.State.NORMAL; 2524 if (hide && hasCustomContent()) { 2525 disableLayoutTransitions(); 2526 mWorkspaceScreens.get(CUSTOM_CONTENT_SCREEN_ID).setVisibility(INVISIBLE); 2527 enableLayoutTransitions(); 2528 } 2529 } 2530 2531 private void onTransitionEnd() { 2532 mIsSwitchingState = false; 2533 updateChildrenLayersEnabled(false); 2534 // The code in getChangeStateAnimation to determine initialAlpha and finalAlpha will ensure 2535 // ensure that only the current page is visible during (and subsequently, after) the 2536 // transition animation. If fade adjacent pages is disabled, then re-enable the page 2537 // visibility after the transition animation. 2538 if (!mWorkspaceFadeInAdjacentScreens) { 2539 for (int i = 0; i < getChildCount(); i++) { 2540 final CellLayout cl = (CellLayout) getChildAt(i); 2541 cl.setShortcutAndWidgetAlpha(1f); 2542 } 2543 } else { 2544 for (int i = 0; i < numCustomPages(); i++) { 2545 final CellLayout cl = (CellLayout) getChildAt(i); 2546 cl.setShortcutAndWidgetAlpha(1f); 2547 } 2548 } 2549 showCustomContentIfNecessary(); 2550 } 2551 2552 @Override 2553 public View getContent() { 2554 return this; 2555 } 2556 2557 /** 2558 * Draw the View v into the given Canvas. 2559 * 2560 * @param v the view to draw 2561 * @param destCanvas the canvas to draw on 2562 * @param padding the horizontal and vertical padding to use when drawing 2563 */ 2564 private void drawDragView(View v, Canvas destCanvas, int padding, boolean pruneToDrawable) { 2565 final Rect clipRect = mTempRect; 2566 v.getDrawingRect(clipRect); 2567 2568 boolean textVisible = false; 2569 2570 destCanvas.save(); 2571 if (v instanceof TextView && pruneToDrawable) { 2572 Drawable d = ((TextView) v).getCompoundDrawables()[1]; 2573 Rect bounds = getDrawableBounds(d); 2574 clipRect.set(0, 0, bounds.width() + padding, bounds.height() + padding); 2575 destCanvas.translate(padding / 2, padding / 2); 2576 d.draw(destCanvas); 2577 } else { 2578 if (v instanceof FolderIcon) { 2579 // For FolderIcons the text can bleed into the icon area, and so we need to 2580 // hide the text completely (which can't be achieved by clipping). 2581 if (((FolderIcon) v).getTextVisible()) { 2582 ((FolderIcon) v).setTextVisible(false); 2583 textVisible = true; 2584 } 2585 } else if (v instanceof BubbleTextView) { 2586 final BubbleTextView tv = (BubbleTextView) v; 2587 clipRect.bottom = tv.getExtendedPaddingTop() - (int) BubbleTextView.PADDING_V + 2588 tv.getLayout().getLineTop(0); 2589 } else if (v instanceof TextView) { 2590 final TextView tv = (TextView) v; 2591 clipRect.bottom = tv.getExtendedPaddingTop() - tv.getCompoundDrawablePadding() + 2592 tv.getLayout().getLineTop(0); 2593 } 2594 destCanvas.translate(-v.getScrollX() + padding / 2, -v.getScrollY() + padding / 2); 2595 destCanvas.clipRect(clipRect, Op.REPLACE); 2596 v.draw(destCanvas); 2597 2598 // Restore text visibility of FolderIcon if necessary 2599 if (textVisible) { 2600 ((FolderIcon) v).setTextVisible(true); 2601 } 2602 } 2603 destCanvas.restore(); 2604 } 2605 2606 /** 2607 * Returns a new bitmap to show when the given View is being dragged around. 2608 * Responsibility for the bitmap is transferred to the caller. 2609 */ 2610 public Bitmap createDragBitmap(View v, Canvas canvas, int padding) { 2611 Bitmap b; 2612 2613 if (v instanceof TextView) { 2614 Drawable d = ((TextView) v).getCompoundDrawables()[1]; 2615 Rect bounds = getDrawableBounds(d); 2616 b = Bitmap.createBitmap(bounds.width() + padding, 2617 bounds.height() + padding, Bitmap.Config.ARGB_8888); 2618 } else { 2619 b = Bitmap.createBitmap( 2620 v.getWidth() + padding, v.getHeight() + padding, Bitmap.Config.ARGB_8888); 2621 } 2622 2623 canvas.setBitmap(b); 2624 drawDragView(v, canvas, padding, true); 2625 canvas.setBitmap(null); 2626 2627 return b; 2628 } 2629 2630 /** 2631 * Returns a new bitmap to be used as the object outline, e.g. to visualize the drop location. 2632 * Responsibility for the bitmap is transferred to the caller. 2633 */ 2634 private Bitmap createDragOutline(View v, Canvas canvas, int padding) { 2635 final int outlineColor = getResources().getColor(R.color.outline_color); 2636 final Bitmap b = Bitmap.createBitmap( 2637 v.getWidth() + padding, v.getHeight() + padding, Bitmap.Config.ARGB_8888); 2638 2639 canvas.setBitmap(b); 2640 drawDragView(v, canvas, padding, true); 2641 mOutlineHelper.applyMediumExpensiveOutlineWithBlur(b, canvas, outlineColor, outlineColor); 2642 canvas.setBitmap(null); 2643 return b; 2644 } 2645 2646 /** 2647 * Returns a new bitmap to be used as the object outline, e.g. to visualize the drop location. 2648 * Responsibility for the bitmap is transferred to the caller. 2649 */ 2650 private Bitmap createDragOutline(Bitmap orig, Canvas canvas, int padding, int w, int h, 2651 boolean clipAlpha) { 2652 final int outlineColor = getResources().getColor(R.color.outline_color); 2653 final Bitmap b = Bitmap.createBitmap(w, h, Bitmap.Config.ARGB_8888); 2654 canvas.setBitmap(b); 2655 2656 Rect src = new Rect(0, 0, orig.getWidth(), orig.getHeight()); 2657 float scaleFactor = Math.min((w - padding) / (float) orig.getWidth(), 2658 (h - padding) / (float) orig.getHeight()); 2659 int scaledWidth = (int) (scaleFactor * orig.getWidth()); 2660 int scaledHeight = (int) (scaleFactor * orig.getHeight()); 2661 Rect dst = new Rect(0, 0, scaledWidth, scaledHeight); 2662 2663 // center the image 2664 dst.offset((w - scaledWidth) / 2, (h - scaledHeight) / 2); 2665 2666 canvas.drawBitmap(orig, src, dst, null); 2667 mOutlineHelper.applyMediumExpensiveOutlineWithBlur(b, canvas, outlineColor, outlineColor, 2668 clipAlpha); 2669 canvas.setBitmap(null); 2670 2671 return b; 2672 } 2673 2674 void startDrag(CellLayout.CellInfo cellInfo) { 2675 View child = cellInfo.cell; 2676 2677 // Make sure the drag was started by a long press as opposed to a long click. 2678 if (!child.isInTouchMode()) { 2679 return; 2680 } 2681 2682 mDragInfo = cellInfo; 2683 child.setVisibility(INVISIBLE); 2684 CellLayout layout = (CellLayout) child.getParent().getParent(); 2685 layout.prepareChildForDrag(child); 2686 2687 child.clearFocus(); 2688 child.setPressed(false); 2689 2690 final Canvas canvas = new Canvas(); 2691 2692 // The outline is used to visualize where the item will land if dropped 2693 mDragOutline = createDragOutline(child, canvas, DRAG_BITMAP_PADDING); 2694 beginDragShared(child, this); 2695 } 2696 2697 public void beginDragShared(View child, DragSource source) { 2698 mLauncher.onDragStarted(child); 2699 // The drag bitmap follows the touch point around on the screen 2700 final Bitmap b = createDragBitmap(child, new Canvas(), DRAG_BITMAP_PADDING); 2701 2702 final int bmpWidth = b.getWidth(); 2703 final int bmpHeight = b.getHeight(); 2704 2705 float scale = mLauncher.getDragLayer().getLocationInDragLayer(child, mTempXY); 2706 int dragLayerX = Math.round(mTempXY[0] - (bmpWidth - scale * child.getWidth()) / 2); 2707 int dragLayerY = Math.round(mTempXY[1] - (bmpHeight - scale * bmpHeight) / 2 2708 - DRAG_BITMAP_PADDING / 2); 2709 2710 LauncherAppState app = LauncherAppState.getInstance(); 2711 DeviceProfile grid = app.getDynamicGrid().getDeviceProfile(); 2712 Point dragVisualizeOffset = null; 2713 Rect dragRect = null; 2714 if (child instanceof BubbleTextView || child instanceof PagedViewIcon) { 2715 int iconSize = grid.iconSizePx; 2716 int top = child.getPaddingTop(); 2717 int left = (bmpWidth - iconSize) / 2; 2718 int right = left + iconSize; 2719 int bottom = top + iconSize; 2720 dragLayerY += top; 2721 // Note: The drag region is used to calculate drag layer offsets, but the 2722 // dragVisualizeOffset in addition to the dragRect (the size) to position the outline. 2723 dragVisualizeOffset = new Point(-DRAG_BITMAP_PADDING / 2, DRAG_BITMAP_PADDING / 2); 2724 dragRect = new Rect(left, top, right, bottom); 2725 } else if (child instanceof FolderIcon) { 2726 int previewSize = grid.folderIconSizePx; 2727 dragRect = new Rect(0, child.getPaddingTop(), child.getWidth(), previewSize); 2728 } 2729 2730 // Clear the pressed state if necessary 2731 if (child instanceof BubbleTextView) { 2732 BubbleTextView icon = (BubbleTextView) child; 2733 icon.clearPressedOrFocusedBackground(); 2734 } else if (child instanceof FolderIcon) { 2735 // The folder cling isn't flexible enough to be shown in non-default workspace positions 2736 // Also if they are dragging it a folder, we assume they don't need to see the cling. 2737 mLauncher.markFolderClingDismissedIfNecessary(); 2738 } 2739 2740 if (child.getTag() == null || !(child.getTag() instanceof ItemInfo)) { 2741 String msg = "Drag started with a view that has no tag set. This " 2742 + "will cause a crash (issue 11627249) down the line. " 2743 + "View: " + child + " tag: " + child.getTag(); 2744 throw new IllegalStateException(msg); 2745 } 2746 2747 DragView dv = mDragController.startDrag(b, dragLayerX, dragLayerY, source, child.getTag(), 2748 DragController.DRAG_ACTION_MOVE, dragVisualizeOffset, dragRect, scale); 2749 dv.setIntrinsicIconScaleFactor(source.getIntrinsicIconScaleFactor()); 2750 2751 if (child.getParent() instanceof ShortcutAndWidgetContainer) { 2752 mDragSourceInternal = (ShortcutAndWidgetContainer) child.getParent(); 2753 } 2754 2755 b.recycle(); 2756 } 2757 2758 public void beginExternalDragShared(View child, DragSource source) { 2759 LauncherAppState app = LauncherAppState.getInstance(); 2760 DeviceProfile grid = app.getDynamicGrid().getDeviceProfile(); 2761 int iconSize = grid.iconSizePx; 2762 2763 // Notify launcher of drag start 2764 mLauncher.onDragStarted(child); 2765 2766 // Compose a new drag bitmap that is of the icon size 2767 final Bitmap tmpB = createDragBitmap(child, new Canvas(), DRAG_BITMAP_PADDING); 2768 Bitmap b = Bitmap.createBitmap(iconSize, iconSize, Bitmap.Config.ARGB_8888); 2769 Paint p = new Paint(); 2770 p.setFilterBitmap(true); 2771 Canvas c = new Canvas(b); 2772 c.drawBitmap(tmpB, new Rect(0, 0, tmpB.getWidth(), tmpB.getHeight()), 2773 new Rect(0, 0, iconSize, iconSize), p); 2774 c.setBitmap(null); 2775 2776 // Find the child's location on the screen 2777 int bmpWidth = tmpB.getWidth(); 2778 float iconScale = (float) bmpWidth / iconSize; 2779 float scale = mLauncher.getDragLayer().getLocationInDragLayer(child, mTempXY) * iconScale; 2780 int dragLayerX = Math.round(mTempXY[0] - (bmpWidth - scale * child.getWidth()) / 2); 2781 int dragLayerY = Math.round(mTempXY[1]); 2782 2783 // Note: The drag region is used to calculate drag layer offsets, but the 2784 // dragVisualizeOffset in addition to the dragRect (the size) to position the outline. 2785 Point dragVisualizeOffset = new Point(-DRAG_BITMAP_PADDING / 2, DRAG_BITMAP_PADDING / 2); 2786 Rect dragRect = new Rect(0, 0, iconSize, iconSize); 2787 2788 if (child.getTag() == null || !(child.getTag() instanceof ItemInfo)) { 2789 String msg = "Drag started with a view that has no tag set. This " 2790 + "will cause a crash (issue 11627249) down the line. " 2791 + "View: " + child + " tag: " + child.getTag(); 2792 throw new IllegalStateException(msg); 2793 } 2794 2795 // Start the drag 2796 DragView dv = mDragController.startDrag(b, dragLayerX, dragLayerY, source, child.getTag(), 2797 DragController.DRAG_ACTION_MOVE, dragVisualizeOffset, dragRect, scale); 2798 dv.setIntrinsicIconScaleFactor(source.getIntrinsicIconScaleFactor()); 2799 2800 // Recycle temporary bitmaps 2801 tmpB.recycle(); 2802 } 2803 2804 void addApplicationShortcut(ShortcutInfo info, CellLayout target, long container, long screenId, 2805 int cellX, int cellY, boolean insertAtFirst, int intersectX, int intersectY) { 2806 View view = mLauncher.createShortcut(R.layout.application, target, (ShortcutInfo) info); 2807 2808 final int[] cellXY = new int[2]; 2809 target.findCellForSpanThatIntersects(cellXY, 1, 1, intersectX, intersectY); 2810 addInScreen(view, container, screenId, cellXY[0], cellXY[1], 1, 1, insertAtFirst); 2811 2812 LauncherModel.addOrMoveItemInDatabase(mLauncher, info, container, screenId, cellXY[0], 2813 cellXY[1]); 2814 } 2815 2816 public boolean transitionStateShouldAllowDrop() { 2817 return ((!isSwitchingState() || mTransitionProgress > 0.5f) && mState != State.SMALL); 2818 } 2819 2820 /** 2821 * {@inheritDoc} 2822 */ 2823 public boolean acceptDrop(DragObject d) { 2824 // If it's an external drop (e.g. from All Apps), check if it should be accepted 2825 CellLayout dropTargetLayout = mDropToLayout; 2826 if (d.dragSource != this) { 2827 // Don't accept the drop if we're not over a screen at time of drop 2828 if (dropTargetLayout == null) { 2829 return false; 2830 } 2831 if (!transitionStateShouldAllowDrop()) return false; 2832 2833 mDragViewVisualCenter = getDragViewVisualCenter(d.x, d.y, d.xOffset, d.yOffset, 2834 d.dragView, mDragViewVisualCenter); 2835 2836 // We want the point to be mapped to the dragTarget. 2837 if (mLauncher.isHotseatLayout(dropTargetLayout)) { 2838 mapPointFromSelfToHotseatLayout(mLauncher.getHotseat(), mDragViewVisualCenter); 2839 } else { 2840 mapPointFromSelfToChild(dropTargetLayout, mDragViewVisualCenter, null); 2841 } 2842 2843 int spanX = 1; 2844 int spanY = 1; 2845 if (mDragInfo != null) { 2846 final CellLayout.CellInfo dragCellInfo = mDragInfo; 2847 spanX = dragCellInfo.spanX; 2848 spanY = dragCellInfo.spanY; 2849 } else { 2850 final ItemInfo dragInfo = (ItemInfo) d.dragInfo; 2851 spanX = dragInfo.spanX; 2852 spanY = dragInfo.spanY; 2853 } 2854 2855 int minSpanX = spanX; 2856 int minSpanY = spanY; 2857 if (d.dragInfo instanceof PendingAddWidgetInfo) { 2858 minSpanX = ((PendingAddWidgetInfo) d.dragInfo).minSpanX; 2859 minSpanY = ((PendingAddWidgetInfo) d.dragInfo).minSpanY; 2860 } 2861 2862 mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], 2863 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, dropTargetLayout, 2864 mTargetCell); 2865 float distance = dropTargetLayout.getDistanceFromCell(mDragViewVisualCenter[0], 2866 mDragViewVisualCenter[1], mTargetCell); 2867 if (mCreateUserFolderOnDrop && willCreateUserFolder((ItemInfo) d.dragInfo, 2868 dropTargetLayout, mTargetCell, distance, true)) { 2869 return true; 2870 } 2871 2872 if (mAddToExistingFolderOnDrop && willAddToExistingUserFolder((ItemInfo) d.dragInfo, 2873 dropTargetLayout, mTargetCell, distance)) { 2874 return true; 2875 } 2876 2877 int[] resultSpan = new int[2]; 2878 mTargetCell = dropTargetLayout.performReorder((int) mDragViewVisualCenter[0], 2879 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, spanX, spanY, 2880 null, mTargetCell, resultSpan, CellLayout.MODE_ACCEPT_DROP); 2881 boolean foundCell = mTargetCell[0] >= 0 && mTargetCell[1] >= 0; 2882 2883 // Don't accept the drop if there's no room for the item 2884 if (!foundCell) { 2885 // Don't show the message if we are dropping on the AllApps button and the hotseat 2886 // is full 2887 boolean isHotseat = mLauncher.isHotseatLayout(dropTargetLayout); 2888 if (mTargetCell != null && isHotseat) { 2889 Hotseat hotseat = mLauncher.getHotseat(); 2890 if (hotseat.isAllAppsButtonRank( 2891 hotseat.getOrderInHotseat(mTargetCell[0], mTargetCell[1]))) { 2892 return false; 2893 } 2894 } 2895 2896 mLauncher.showOutOfSpaceMessage(isHotseat); 2897 return false; 2898 } 2899 } 2900 2901 long screenId = getIdForScreen(dropTargetLayout); 2902 if (screenId == EXTRA_EMPTY_SCREEN_ID) { 2903 commitExtraEmptyScreen(); 2904 } 2905 2906 return true; 2907 } 2908 2909 boolean willCreateUserFolder(ItemInfo info, CellLayout target, int[] targetCell, float 2910 distance, boolean considerTimeout) { 2911 if (distance > mMaxDistanceForFolderCreation) return false; 2912 View dropOverView = target.getChildAt(targetCell[0], targetCell[1]); 2913 2914 if (dropOverView != null) { 2915 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) dropOverView.getLayoutParams(); 2916 if (lp.useTmpCoords && (lp.tmpCellX != lp.cellX || lp.tmpCellY != lp.tmpCellY)) { 2917 return false; 2918 } 2919 } 2920 2921 boolean hasntMoved = false; 2922 if (mDragInfo != null) { 2923 hasntMoved = dropOverView == mDragInfo.cell; 2924 } 2925 2926 if (dropOverView == null || hasntMoved || (considerTimeout && !mCreateUserFolderOnDrop)) { 2927 return false; 2928 } 2929 2930 boolean aboveShortcut = (dropOverView.getTag() instanceof ShortcutInfo); 2931 boolean willBecomeShortcut = 2932 (info.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPLICATION || 2933 info.itemType == LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT); 2934 2935 return (aboveShortcut && willBecomeShortcut); 2936 } 2937 2938 boolean willAddToExistingUserFolder(Object dragInfo, CellLayout target, int[] targetCell, 2939 float distance) { 2940 if (distance > mMaxDistanceForFolderCreation) return false; 2941 View dropOverView = target.getChildAt(targetCell[0], targetCell[1]); 2942 2943 if (dropOverView != null) { 2944 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) dropOverView.getLayoutParams(); 2945 if (lp.useTmpCoords && (lp.tmpCellX != lp.cellX || lp.tmpCellY != lp.tmpCellY)) { 2946 return false; 2947 } 2948 } 2949 2950 if (dropOverView instanceof FolderIcon) { 2951 FolderIcon fi = (FolderIcon) dropOverView; 2952 if (fi.acceptDrop(dragInfo)) { 2953 return true; 2954 } 2955 } 2956 return false; 2957 } 2958 2959 boolean createUserFolderIfNecessary(View newView, long container, CellLayout target, 2960 int[] targetCell, float distance, boolean external, DragView dragView, 2961 Runnable postAnimationRunnable) { 2962 if (distance > mMaxDistanceForFolderCreation) return false; 2963 View v = target.getChildAt(targetCell[0], targetCell[1]); 2964 2965 boolean hasntMoved = false; 2966 if (mDragInfo != null) { 2967 CellLayout cellParent = getParentCellLayoutForView(mDragInfo.cell); 2968 hasntMoved = (mDragInfo.cellX == targetCell[0] && 2969 mDragInfo.cellY == targetCell[1]) && (cellParent == target); 2970 } 2971 2972 if (v == null || hasntMoved || !mCreateUserFolderOnDrop) return false; 2973 mCreateUserFolderOnDrop = false; 2974 final long screenId = (targetCell == null) ? mDragInfo.screenId : getIdForScreen(target); 2975 2976 boolean aboveShortcut = (v.getTag() instanceof ShortcutInfo); 2977 boolean willBecomeShortcut = (newView.getTag() instanceof ShortcutInfo); 2978 2979 if (aboveShortcut && willBecomeShortcut) { 2980 ShortcutInfo sourceInfo = (ShortcutInfo) newView.getTag(); 2981 ShortcutInfo destInfo = (ShortcutInfo) v.getTag(); 2982 // if the drag started here, we need to remove it from the workspace 2983 if (!external) { 2984 getParentCellLayoutForView(mDragInfo.cell).removeView(mDragInfo.cell); 2985 } 2986 2987 Rect folderLocation = new Rect(); 2988 float scale = mLauncher.getDragLayer().getDescendantRectRelativeToSelf(v, folderLocation); 2989 target.removeView(v); 2990 2991 FolderIcon fi = 2992 mLauncher.addFolder(target, container, screenId, targetCell[0], targetCell[1]); 2993 destInfo.cellX = -1; 2994 destInfo.cellY = -1; 2995 sourceInfo.cellX = -1; 2996 sourceInfo.cellY = -1; 2997 2998 // If the dragView is null, we can't animate 2999 boolean animate = dragView != null; 3000 if (animate) { 3001 fi.performCreateAnimation(destInfo, v, sourceInfo, dragView, folderLocation, scale, 3002 postAnimationRunnable); 3003 } else { 3004 fi.addItem(destInfo); 3005 fi.addItem(sourceInfo); 3006 } 3007 return true; 3008 } 3009 return false; 3010 } 3011 3012 boolean addToExistingFolderIfNecessary(View newView, CellLayout target, int[] targetCell, 3013 float distance, DragObject d, boolean external) { 3014 if (distance > mMaxDistanceForFolderCreation) return false; 3015 3016 View dropOverView = target.getChildAt(targetCell[0], targetCell[1]); 3017 if (!mAddToExistingFolderOnDrop) return false; 3018 mAddToExistingFolderOnDrop = false; 3019 3020 if (dropOverView instanceof FolderIcon) { 3021 FolderIcon fi = (FolderIcon) dropOverView; 3022 if (fi.acceptDrop(d.dragInfo)) { 3023 fi.onDrop(d); 3024 3025 // if the drag started here, we need to remove it from the workspace 3026 if (!external) { 3027 getParentCellLayoutForView(mDragInfo.cell).removeView(mDragInfo.cell); 3028 } 3029 return true; 3030 } 3031 } 3032 return false; 3033 } 3034 3035 public void onDrop(final DragObject d) { 3036 mDragViewVisualCenter = getDragViewVisualCenter(d.x, d.y, d.xOffset, d.yOffset, d.dragView, 3037 mDragViewVisualCenter); 3038 3039 CellLayout dropTargetLayout = mDropToLayout; 3040 3041 // We want the point to be mapped to the dragTarget. 3042 if (dropTargetLayout != null) { 3043 if (mLauncher.isHotseatLayout(dropTargetLayout)) { 3044 mapPointFromSelfToHotseatLayout(mLauncher.getHotseat(), mDragViewVisualCenter); 3045 } else { 3046 mapPointFromSelfToChild(dropTargetLayout, mDragViewVisualCenter, null); 3047 } 3048 } 3049 3050 int snapScreen = -1; 3051 boolean resizeOnDrop = false; 3052 if (d.dragSource != this) { 3053 final int[] touchXY = new int[] { (int) mDragViewVisualCenter[0], 3054 (int) mDragViewVisualCenter[1] }; 3055 onDropExternal(touchXY, d.dragInfo, dropTargetLayout, false, d); 3056 } else if (mDragInfo != null) { 3057 final View cell = mDragInfo.cell; 3058 3059 Runnable resizeRunnable = null; 3060 if (dropTargetLayout != null && !d.cancelled) { 3061 // Move internally 3062 boolean hasMovedLayouts = (getParentCellLayoutForView(cell) != dropTargetLayout); 3063 boolean hasMovedIntoHotseat = mLauncher.isHotseatLayout(dropTargetLayout); 3064 long container = hasMovedIntoHotseat ? 3065 LauncherSettings.Favorites.CONTAINER_HOTSEAT : 3066 LauncherSettings.Favorites.CONTAINER_DESKTOP; 3067 long screenId = (mTargetCell[0] < 0) ? 3068 mDragInfo.screenId : getIdForScreen(dropTargetLayout); 3069 int spanX = mDragInfo != null ? mDragInfo.spanX : 1; 3070 int spanY = mDragInfo != null ? mDragInfo.spanY : 1; 3071 // First we find the cell nearest to point at which the item is 3072 // dropped, without any consideration to whether there is an item there. 3073 3074 mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], (int) 3075 mDragViewVisualCenter[1], spanX, spanY, dropTargetLayout, mTargetCell); 3076 float distance = dropTargetLayout.getDistanceFromCell(mDragViewVisualCenter[0], 3077 mDragViewVisualCenter[1], mTargetCell); 3078 3079 // If the item being dropped is a shortcut and the nearest drop 3080 // cell also contains a shortcut, then create a folder with the two shortcuts. 3081 if (!mInScrollArea && createUserFolderIfNecessary(cell, container, 3082 dropTargetLayout, mTargetCell, distance, false, d.dragView, null)) { 3083 // The folder cling isn't flexible enough to be shown in non-default workspace 3084 // positions. Also if they are creating a folder, we assume they don't need to 3085 // see the cling. 3086 mLauncher.markFolderClingDismissedIfNecessary(); 3087 return; 3088 } 3089 3090 if (addToExistingFolderIfNecessary(cell, dropTargetLayout, mTargetCell, 3091 distance, d, false)) { 3092 return; 3093 } 3094 3095 // Aside from the special case where we're dropping a shortcut onto a shortcut, 3096 // we need to find the nearest cell location that is vacant 3097 ItemInfo item = (ItemInfo) d.dragInfo; 3098 int minSpanX = item.spanX; 3099 int minSpanY = item.spanY; 3100 if (item.minSpanX > 0 && item.minSpanY > 0) { 3101 minSpanX = item.minSpanX; 3102 minSpanY = item.minSpanY; 3103 } 3104 3105 int[] resultSpan = new int[2]; 3106 mTargetCell = dropTargetLayout.performReorder((int) mDragViewVisualCenter[0], 3107 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, spanX, spanY, cell, 3108 mTargetCell, resultSpan, CellLayout.MODE_ON_DROP); 3109 3110 boolean foundCell = mTargetCell[0] >= 0 && mTargetCell[1] >= 0; 3111 3112 // if the widget resizes on drop 3113 if (foundCell && (cell instanceof AppWidgetHostView) && 3114 (resultSpan[0] != item.spanX || resultSpan[1] != item.spanY)) { 3115 resizeOnDrop = true; 3116 item.spanX = resultSpan[0]; 3117 item.spanY = resultSpan[1]; 3118 AppWidgetHostView awhv = (AppWidgetHostView) cell; 3119 AppWidgetResizeFrame.updateWidgetSizeRanges(awhv, mLauncher, resultSpan[0], 3120 resultSpan[1]); 3121 } 3122 3123 if (getScreenIdForPageIndex(mCurrentPage) != screenId && !hasMovedIntoHotseat) { 3124 snapScreen = getPageIndexForScreenId(screenId); 3125 snapToPage(snapScreen); 3126 } 3127 3128 if (foundCell) { 3129 final ItemInfo info = (ItemInfo) cell.getTag(); 3130 if (hasMovedLayouts) { 3131 // Reparent the view 3132 getParentCellLayoutForView(cell).removeView(cell); 3133 addInScreen(cell, container, screenId, mTargetCell[0], mTargetCell[1], 3134 info.spanX, info.spanY); 3135 } 3136 3137 // update the item's position after drop 3138 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) cell.getLayoutParams(); 3139 lp.cellX = lp.tmpCellX = mTargetCell[0]; 3140 lp.cellY = lp.tmpCellY = mTargetCell[1]; 3141 lp.cellHSpan = item.spanX; 3142 lp.cellVSpan = item.spanY; 3143 lp.isLockedToGrid = true; 3144 3145 if (container != LauncherSettings.Favorites.CONTAINER_HOTSEAT && 3146 cell instanceof LauncherAppWidgetHostView) { 3147 final CellLayout cellLayout = dropTargetLayout; 3148 // We post this call so that the widget has a chance to be placed 3149 // in its final location 3150 3151 final LauncherAppWidgetHostView hostView = (LauncherAppWidgetHostView) cell; 3152 AppWidgetProviderInfo pinfo = hostView.getAppWidgetInfo(); 3153 if (pinfo != null && 3154 pinfo.resizeMode != AppWidgetProviderInfo.RESIZE_NONE) { 3155 final Runnable addResizeFrame = new Runnable() { 3156 public void run() { 3157 DragLayer dragLayer = mLauncher.getDragLayer(); 3158 dragLayer.addResizeFrame(info, hostView, cellLayout); 3159 } 3160 }; 3161 resizeRunnable = (new Runnable() { 3162 public void run() { 3163 if (!isPageMoving()) { 3164 addResizeFrame.run(); 3165 } else { 3166 mDelayedResizeRunnable = addResizeFrame; 3167 } 3168 } 3169 }); 3170 } 3171 } 3172 3173 LauncherModel.modifyItemInDatabase(mLauncher, info, container, screenId, lp.cellX, 3174 lp.cellY, item.spanX, item.spanY); 3175 } else { 3176 // If we can't find a drop location, we return the item to its original position 3177 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) cell.getLayoutParams(); 3178 mTargetCell[0] = lp.cellX; 3179 mTargetCell[1] = lp.cellY; 3180 CellLayout layout = (CellLayout) cell.getParent().getParent(); 3181 layout.markCellsAsOccupiedForView(cell); 3182 } 3183 } 3184 3185 final CellLayout parent = (CellLayout) cell.getParent().getParent(); 3186 final Runnable finalResizeRunnable = resizeRunnable; 3187 // Prepare it to be animated into its new position 3188 // This must be called after the view has been re-parented 3189 final Runnable onCompleteRunnable = new Runnable() { 3190 @Override 3191 public void run() { 3192 mAnimatingViewIntoPlace = false; 3193 updateChildrenLayersEnabled(false); 3194 if (finalResizeRunnable != null) { 3195 finalResizeRunnable.run(); 3196 } 3197 } 3198 }; 3199 mAnimatingViewIntoPlace = true; 3200 if (d.dragView.hasDrawn()) { 3201 final ItemInfo info = (ItemInfo) cell.getTag(); 3202 if (info.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET) { 3203 int animationType = resizeOnDrop ? ANIMATE_INTO_POSITION_AND_RESIZE : 3204 ANIMATE_INTO_POSITION_AND_DISAPPEAR; 3205 animateWidgetDrop(info, parent, d.dragView, 3206 onCompleteRunnable, animationType, cell, false); 3207 } else { 3208 int duration = snapScreen < 0 ? -1 : ADJACENT_SCREEN_DROP_DURATION; 3209 mLauncher.getDragLayer().animateViewIntoPosition(d.dragView, cell, duration, 3210 onCompleteRunnable, this); 3211 } 3212 } else { 3213 d.deferDragViewCleanupPostAnimation = false; 3214 cell.setVisibility(VISIBLE); 3215 } 3216 parent.onDropChild(cell); 3217 } 3218 } 3219 3220 public void setFinalScrollForPageChange(int pageIndex) { 3221 CellLayout cl = (CellLayout) getChildAt(pageIndex); 3222 if (cl != null) { 3223 mSavedScrollX = getScrollX(); 3224 mSavedTranslationX = cl.getTranslationX(); 3225 mSavedRotationY = cl.getRotationY(); 3226 final int newX = getScrollForPage(pageIndex); 3227 setScrollX(newX); 3228 cl.setTranslationX(0f); 3229 cl.setRotationY(0f); 3230 } 3231 } 3232 3233 public void resetFinalScrollForPageChange(int pageIndex) { 3234 if (pageIndex >= 0) { 3235 CellLayout cl = (CellLayout) getChildAt(pageIndex); 3236 setScrollX(mSavedScrollX); 3237 cl.setTranslationX(mSavedTranslationX); 3238 cl.setRotationY(mSavedRotationY); 3239 } 3240 } 3241 3242 public void getViewLocationRelativeToSelf(View v, int[] location) { 3243 getLocationInWindow(location); 3244 int x = location[0]; 3245 int y = location[1]; 3246 3247 v.getLocationInWindow(location); 3248 int vX = location[0]; 3249 int vY = location[1]; 3250 3251 location[0] = vX - x; 3252 location[1] = vY - y; 3253 } 3254 3255 public void onDragEnter(DragObject d) { 3256 mDragEnforcer.onDragEnter(); 3257 mCreateUserFolderOnDrop = false; 3258 mAddToExistingFolderOnDrop = false; 3259 3260 mDropToLayout = null; 3261 CellLayout layout = getCurrentDropLayout(); 3262 setCurrentDropLayout(layout); 3263 setCurrentDragOverlappingLayout(layout); 3264 3265 // Because we don't have space in the Phone UI (the CellLayouts run to the edge) we 3266 // don't need to show the outlines 3267 if (LauncherAppState.getInstance().isScreenLarge()) { 3268 showOutlines(); 3269 } 3270 } 3271 3272 /** Return a rect that has the cellWidth/cellHeight (left, top), and 3273 * widthGap/heightGap (right, bottom) */ 3274 static Rect getCellLayoutMetrics(Launcher launcher, int orientation) { 3275 LauncherAppState app = LauncherAppState.getInstance(); 3276 DeviceProfile grid = app.getDynamicGrid().getDeviceProfile(); 3277 3278 Resources res = launcher.getResources(); 3279 Display display = launcher.getWindowManager().getDefaultDisplay(); 3280 Point smallestSize = new Point(); 3281 Point largestSize = new Point(); 3282 display.getCurrentSizeRange(smallestSize, largestSize); 3283 int countX = (int) grid.numColumns; 3284 int countY = (int) grid.numRows; 3285 if (orientation == CellLayout.LANDSCAPE) { 3286 if (mLandscapeCellLayoutMetrics == null) { 3287 Rect padding = grid.getWorkspacePadding(CellLayout.LANDSCAPE); 3288 int width = largestSize.x - padding.left - padding.right; 3289 int height = smallestSize.y - padding.top - padding.bottom; 3290 mLandscapeCellLayoutMetrics = new Rect(); 3291 mLandscapeCellLayoutMetrics.set( 3292 grid.calculateCellWidth(width, countX), 3293 grid.calculateCellHeight(height, countY), 0, 0); 3294 } 3295 return mLandscapeCellLayoutMetrics; 3296 } else if (orientation == CellLayout.PORTRAIT) { 3297 if (mPortraitCellLayoutMetrics == null) { 3298 Rect padding = grid.getWorkspacePadding(CellLayout.PORTRAIT); 3299 int width = smallestSize.x - padding.left - padding.right; 3300 int height = largestSize.y - padding.top - padding.bottom; 3301 mPortraitCellLayoutMetrics = new Rect(); 3302 mPortraitCellLayoutMetrics.set( 3303 grid.calculateCellWidth(width, countX), 3304 grid.calculateCellHeight(height, countY), 0, 0); 3305 } 3306 return mPortraitCellLayoutMetrics; 3307 } 3308 return null; 3309 } 3310 3311 public void onDragExit(DragObject d) { 3312 mDragEnforcer.onDragExit(); 3313 3314 // Here we store the final page that will be dropped to, if the workspace in fact 3315 // receives the drop 3316 if (mInScrollArea) { 3317 if (isPageMoving()) { 3318 // If the user drops while the page is scrolling, we should use that page as the 3319 // destination instead of the page that is being hovered over. 3320 mDropToLayout = (CellLayout) getPageAt(getNextPage()); 3321 } else { 3322 mDropToLayout = mDragOverlappingLayout; 3323 } 3324 } else { 3325 mDropToLayout = mDragTargetLayout; 3326 } 3327 3328 if (mDragMode == DRAG_MODE_CREATE_FOLDER) { 3329 mCreateUserFolderOnDrop = true; 3330 } else if (mDragMode == DRAG_MODE_ADD_TO_FOLDER) { 3331 mAddToExistingFolderOnDrop = true; 3332 } 3333 3334 // Reset the scroll area and previous drag target 3335 onResetScrollArea(); 3336 setCurrentDropLayout(null); 3337 setCurrentDragOverlappingLayout(null); 3338 3339 mSpringLoadedDragController.cancel(); 3340 3341 if (!mIsPageMoving) { 3342 hideOutlines(); 3343 } 3344 } 3345 3346 void setCurrentDropLayout(CellLayout layout) { 3347 if (mDragTargetLayout != null) { 3348 mDragTargetLayout.revertTempState(); 3349 mDragTargetLayout.onDragExit(); 3350 } 3351 mDragTargetLayout = layout; 3352 if (mDragTargetLayout != null) { 3353 mDragTargetLayout.onDragEnter(); 3354 } 3355 cleanupReorder(true); 3356 cleanupFolderCreation(); 3357 setCurrentDropOverCell(-1, -1); 3358 } 3359 3360 void setCurrentDragOverlappingLayout(CellLayout layout) { 3361 if (mDragOverlappingLayout != null) { 3362 mDragOverlappingLayout.setIsDragOverlapping(false); 3363 } 3364 mDragOverlappingLayout = layout; 3365 if (mDragOverlappingLayout != null) { 3366 mDragOverlappingLayout.setIsDragOverlapping(true); 3367 } 3368 invalidate(); 3369 } 3370 3371 void setCurrentDropOverCell(int x, int y) { 3372 if (x != mDragOverX || y != mDragOverY) { 3373 mDragOverX = x; 3374 mDragOverY = y; 3375 setDragMode(DRAG_MODE_NONE); 3376 } 3377 } 3378 3379 void setDragMode(int dragMode) { 3380 if (dragMode != mDragMode) { 3381 if (dragMode == DRAG_MODE_NONE) { 3382 cleanupAddToFolder(); 3383 // We don't want to cancel the re-order alarm every time the target cell changes 3384 // as this feels to slow / unresponsive. 3385 cleanupReorder(false); 3386 cleanupFolderCreation(); 3387 } else if (dragMode == DRAG_MODE_ADD_TO_FOLDER) { 3388 cleanupReorder(true); 3389 cleanupFolderCreation(); 3390 } else if (dragMode == DRAG_MODE_CREATE_FOLDER) { 3391 cleanupAddToFolder(); 3392 cleanupReorder(true); 3393 } else if (dragMode == DRAG_MODE_REORDER) { 3394 cleanupAddToFolder(); 3395 cleanupFolderCreation(); 3396 } 3397 mDragMode = dragMode; 3398 } 3399 } 3400 3401 private void cleanupFolderCreation() { 3402 if (mDragFolderRingAnimator != null) { 3403 mDragFolderRingAnimator.animateToNaturalState(); 3404 mDragFolderRingAnimator = null; 3405 } 3406 mFolderCreationAlarm.setOnAlarmListener(null); 3407 mFolderCreationAlarm.cancelAlarm(); 3408 } 3409 3410 private void cleanupAddToFolder() { 3411 if (mDragOverFolderIcon != null) { 3412 mDragOverFolderIcon.onDragExit(null); 3413 mDragOverFolderIcon = null; 3414 } 3415 } 3416 3417 private void cleanupReorder(boolean cancelAlarm) { 3418 // Any pending reorders are canceled 3419 if (cancelAlarm) { 3420 mReorderAlarm.cancelAlarm(); 3421 } 3422 mLastReorderX = -1; 3423 mLastReorderY = -1; 3424 } 3425 3426 /* 3427 * 3428 * Convert the 2D coordinate xy from the parent View's coordinate space to this CellLayout's 3429 * coordinate space. The argument xy is modified with the return result. 3430 * 3431 * if cachedInverseMatrix is not null, this method will just use that matrix instead of 3432 * computing it itself; we use this to avoid redundant matrix inversions in 3433 * findMatchingPageForDragOver 3434 * 3435 */ 3436 void mapPointFromSelfToChild(View v, float[] xy, Matrix cachedInverseMatrix) { 3437 xy[0] = xy[0] - v.getLeft(); 3438 xy[1] = xy[1] - v.getTop(); 3439 } 3440 3441 boolean isPointInSelfOverHotseat(int x, int y, Rect r) { 3442 if (r == null) { 3443 r = new Rect(); 3444 } 3445 mTempPt[0] = x; 3446 mTempPt[1] = y; 3447 mLauncher.getDragLayer().getDescendantCoordRelativeToSelf(this, mTempPt, true); 3448 3449 LauncherAppState app = LauncherAppState.getInstance(); 3450 DeviceProfile grid = app.getDynamicGrid().getDeviceProfile(); 3451 r = grid.getHotseatRect(); 3452 if (r.contains(mTempPt[0], mTempPt[1])) { 3453 return true; 3454 } 3455 return false; 3456 } 3457 3458 void mapPointFromSelfToHotseatLayout(Hotseat hotseat, float[] xy) { 3459 mTempPt[0] = (int) xy[0]; 3460 mTempPt[1] = (int) xy[1]; 3461 mLauncher.getDragLayer().getDescendantCoordRelativeToSelf(this, mTempPt, true); 3462 mLauncher.getDragLayer().mapCoordInSelfToDescendent(hotseat.getLayout(), mTempPt); 3463 3464 xy[0] = mTempPt[0]; 3465 xy[1] = mTempPt[1]; 3466 } 3467 3468 /* 3469 * 3470 * Convert the 2D coordinate xy from this CellLayout's coordinate space to 3471 * the parent View's coordinate space. The argument xy is modified with the return result. 3472 * 3473 */ 3474 void mapPointFromChildToSelf(View v, float[] xy) { 3475 xy[0] += v.getLeft(); 3476 xy[1] += v.getTop(); 3477 } 3478 3479 static private float squaredDistance(float[] point1, float[] point2) { 3480 float distanceX = point1[0] - point2[0]; 3481 float distanceY = point2[1] - point2[1]; 3482 return distanceX * distanceX + distanceY * distanceY; 3483 } 3484 3485 /* 3486 * 3487 * This method returns the CellLayout that is currently being dragged to. In order to drag 3488 * to a CellLayout, either the touch point must be directly over the CellLayout, or as a second 3489 * strategy, we see if the dragView is overlapping any CellLayout and choose the closest one 3490 * 3491 * Return null if no CellLayout is currently being dragged over 3492 * 3493 */ 3494 private CellLayout findMatchingPageForDragOver( 3495 DragView dragView, float originX, float originY, boolean exact) { 3496 // We loop through all the screens (ie CellLayouts) and see which ones overlap 3497 // with the item being dragged and then choose the one that's closest to the touch point 3498 final int screenCount = getChildCount(); 3499 CellLayout bestMatchingScreen = null; 3500 float smallestDistSoFar = Float.MAX_VALUE; 3501 3502 for (int i = 0; i < screenCount; i++) { 3503 // The custom content screen is not a valid drag over option 3504 if (mScreenOrder.get(i) == CUSTOM_CONTENT_SCREEN_ID) { 3505 continue; 3506 } 3507 3508 CellLayout cl = (CellLayout) getChildAt(i); 3509 3510 final float[] touchXy = {originX, originY}; 3511 // Transform the touch coordinates to the CellLayout's local coordinates 3512 // If the touch point is within the bounds of the cell layout, we can return immediately 3513 cl.getMatrix().invert(mTempInverseMatrix); 3514 mapPointFromSelfToChild(cl, touchXy, mTempInverseMatrix); 3515 3516 if (touchXy[0] >= 0 && touchXy[0] <= cl.getWidth() && 3517 touchXy[1] >= 0 && touchXy[1] <= cl.getHeight()) { 3518 return cl; 3519 } 3520 3521 if (!exact) { 3522 // Get the center of the cell layout in screen coordinates 3523 final float[] cellLayoutCenter = mTempCellLayoutCenterCoordinates; 3524 cellLayoutCenter[0] = cl.getWidth()/2; 3525 cellLayoutCenter[1] = cl.getHeight()/2; 3526 mapPointFromChildToSelf(cl, cellLayoutCenter); 3527 3528 touchXy[0] = originX; 3529 touchXy[1] = originY; 3530 3531 // Calculate the distance between the center of the CellLayout 3532 // and the touch point 3533 float dist = squaredDistance(touchXy, cellLayoutCenter); 3534 3535 if (dist < smallestDistSoFar) { 3536 smallestDistSoFar = dist; 3537 bestMatchingScreen = cl; 3538 } 3539 } 3540 } 3541 return bestMatchingScreen; 3542 } 3543 3544 // This is used to compute the visual center of the dragView. This point is then 3545 // used to visualize drop locations and determine where to drop an item. The idea is that 3546 // the visual center represents the user's interpretation of where the item is, and hence 3547 // is the appropriate point to use when determining drop location. 3548 private float[] getDragViewVisualCenter(int x, int y, int xOffset, int yOffset, 3549 DragView dragView, float[] recycle) { 3550 float res[]; 3551 if (recycle == null) { 3552 res = new float[2]; 3553 } else { 3554 res = recycle; 3555 } 3556 3557 // First off, the drag view has been shifted in a way that is not represented in the 3558 // x and y values or the x/yOffsets. Here we account for that shift. 3559 x += getResources().getDimensionPixelSize(R.dimen.dragViewOffsetX); 3560 y += getResources().getDimensionPixelSize(R.dimen.dragViewOffsetY); 3561 3562 // These represent the visual top and left of drag view if a dragRect was provided. 3563 // If a dragRect was not provided, then they correspond to the actual view left and 3564 // top, as the dragRect is in that case taken to be the entire dragView. 3565 // R.dimen.dragViewOffsetY. 3566 int left = x - xOffset; 3567 int top = y - yOffset; 3568 3569 // In order to find the visual center, we shift by half the dragRect 3570 res[0] = left + dragView.getDragRegion().width() / 2; 3571 res[1] = top + dragView.getDragRegion().height() / 2; 3572 3573 return res; 3574 } 3575 3576 private boolean isDragWidget(DragObject d) { 3577 return (d.dragInfo instanceof LauncherAppWidgetInfo || 3578 d.dragInfo instanceof PendingAddWidgetInfo); 3579 } 3580 private boolean isExternalDragWidget(DragObject d) { 3581 return d.dragSource != this && isDragWidget(d); 3582 } 3583 3584 public void onDragOver(DragObject d) { 3585 // Skip drag over events while we are dragging over side pages 3586 if (mInScrollArea || mIsSwitchingState || mState == State.SMALL) return; 3587 3588 Rect r = new Rect(); 3589 CellLayout layout = null; 3590 ItemInfo item = (ItemInfo) d.dragInfo; 3591 3592 // Ensure that we have proper spans for the item that we are dropping 3593 if (item.spanX < 0 || item.spanY < 0) throw new RuntimeException("Improper spans found"); 3594 mDragViewVisualCenter = getDragViewVisualCenter(d.x, d.y, d.xOffset, d.yOffset, 3595 d.dragView, mDragViewVisualCenter); 3596 3597 final View child = (mDragInfo == null) ? null : mDragInfo.cell; 3598 // Identify whether we have dragged over a side page 3599 if (isSmall()) { 3600 if (mLauncher.getHotseat() != null && !isExternalDragWidget(d)) { 3601 if (isPointInSelfOverHotseat(d.x, d.y, r)) { 3602 layout = mLauncher.getHotseat().getLayout(); 3603 } 3604 } 3605 if (layout == null) { 3606 layout = findMatchingPageForDragOver(d.dragView, d.x, d.y, false); 3607 } 3608 if (layout != mDragTargetLayout) { 3609 setCurrentDropLayout(layout); 3610 setCurrentDragOverlappingLayout(layout); 3611 3612 boolean isInSpringLoadedMode = (mState == State.SPRING_LOADED); 3613 if (isInSpringLoadedMode) { 3614 if (mLauncher.isHotseatLayout(layout)) { 3615 mSpringLoadedDragController.cancel(); 3616 } else { 3617 mSpringLoadedDragController.setAlarm(mDragTargetLayout); 3618 } 3619 } 3620 } 3621 } else { 3622 // Test to see if we are over the hotseat otherwise just use the current page 3623 if (mLauncher.getHotseat() != null && !isDragWidget(d)) { 3624 if (isPointInSelfOverHotseat(d.x, d.y, r)) { 3625 layout = mLauncher.getHotseat().getLayout(); 3626 } 3627 } 3628 if (layout == null) { 3629 layout = getCurrentDropLayout(); 3630 } 3631 if (layout != mDragTargetLayout) { 3632 setCurrentDropLayout(layout); 3633 setCurrentDragOverlappingLayout(layout); 3634 } 3635 } 3636 3637 // Handle the drag over 3638 if (mDragTargetLayout != null) { 3639 // We want the point to be mapped to the dragTarget. 3640 if (mLauncher.isHotseatLayout(mDragTargetLayout)) { 3641 mapPointFromSelfToHotseatLayout(mLauncher.getHotseat(), mDragViewVisualCenter); 3642 } else { 3643 mapPointFromSelfToChild(mDragTargetLayout, mDragViewVisualCenter, null); 3644 } 3645 3646 ItemInfo info = (ItemInfo) d.dragInfo; 3647 3648 int minSpanX = item.spanX; 3649 int minSpanY = item.spanY; 3650 if (item.minSpanX > 0 && item.minSpanY > 0) { 3651 minSpanX = item.minSpanX; 3652 minSpanY = item.minSpanY; 3653 } 3654 3655 mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], 3656 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, 3657 mDragTargetLayout, mTargetCell); 3658 int reorderX = mTargetCell[0]; 3659 int reorderY = mTargetCell[1]; 3660 3661 setCurrentDropOverCell(mTargetCell[0], mTargetCell[1]); 3662 3663 float targetCellDistance = mDragTargetLayout.getDistanceFromCell( 3664 mDragViewVisualCenter[0], mDragViewVisualCenter[1], mTargetCell); 3665 3666 final View dragOverView = mDragTargetLayout.getChildAt(mTargetCell[0], 3667 mTargetCell[1]); 3668 3669 manageFolderFeedback(info, mDragTargetLayout, mTargetCell, 3670 targetCellDistance, dragOverView); 3671 3672 boolean nearestDropOccupied = mDragTargetLayout.isNearestDropLocationOccupied((int) 3673 mDragViewVisualCenter[0], (int) mDragViewVisualCenter[1], item.spanX, 3674 item.spanY, child, mTargetCell); 3675 3676 if (!nearestDropOccupied) { 3677 mDragTargetLayout.visualizeDropLocation(child, mDragOutline, 3678 (int) mDragViewVisualCenter[0], (int) mDragViewVisualCenter[1], 3679 mTargetCell[0], mTargetCell[1], item.spanX, item.spanY, false, 3680 d.dragView.getDragVisualizeOffset(), d.dragView.getDragRegion()); 3681 } else if ((mDragMode == DRAG_MODE_NONE || mDragMode == DRAG_MODE_REORDER) 3682 && !mReorderAlarm.alarmPending() && (mLastReorderX != reorderX || 3683 mLastReorderY != reorderY)) { 3684 3685 int[] resultSpan = new int[2]; 3686 mDragTargetLayout.performReorder((int) mDragViewVisualCenter[0], 3687 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, item.spanX, item.spanY, 3688 child, mTargetCell, resultSpan, CellLayout.MODE_SHOW_REORDER_HINT); 3689 3690 // Otherwise, if we aren't adding to or creating a folder and there's no pending 3691 // reorder, then we schedule a reorder 3692 ReorderAlarmListener listener = new ReorderAlarmListener(mDragViewVisualCenter, 3693 minSpanX, minSpanY, item.spanX, item.spanY, d.dragView, child); 3694 mReorderAlarm.setOnAlarmListener(listener); 3695 mReorderAlarm.setAlarm(REORDER_TIMEOUT); 3696 } 3697 3698 if (mDragMode == DRAG_MODE_CREATE_FOLDER || mDragMode == DRAG_MODE_ADD_TO_FOLDER || 3699 !nearestDropOccupied) { 3700 if (mDragTargetLayout != null) { 3701 mDragTargetLayout.revertTempState(); 3702 } 3703 } 3704 } 3705 } 3706 3707 private void manageFolderFeedback(ItemInfo info, CellLayout targetLayout, 3708 int[] targetCell, float distance, View dragOverView) { 3709 boolean userFolderPending = willCreateUserFolder(info, targetLayout, targetCell, distance, 3710 false); 3711 3712 if (mDragMode == DRAG_MODE_NONE && userFolderPending && 3713 !mFolderCreationAlarm.alarmPending()) { 3714 mFolderCreationAlarm.setOnAlarmListener(new 3715 FolderCreationAlarmListener(targetLayout, targetCell[0], targetCell[1])); 3716 mFolderCreationAlarm.setAlarm(FOLDER_CREATION_TIMEOUT); 3717 return; 3718 } 3719 3720 boolean willAddToFolder = 3721 willAddToExistingUserFolder(info, targetLayout, targetCell, distance); 3722 3723 if (willAddToFolder && mDragMode == DRAG_MODE_NONE) { 3724 mDragOverFolderIcon = ((FolderIcon) dragOverView); 3725 mDragOverFolderIcon.onDragEnter(info); 3726 if (targetLayout != null) { 3727 targetLayout.clearDragOutlines(); 3728 } 3729 setDragMode(DRAG_MODE_ADD_TO_FOLDER); 3730 return; 3731 } 3732 3733 if (mDragMode == DRAG_MODE_ADD_TO_FOLDER && !willAddToFolder) { 3734 setDragMode(DRAG_MODE_NONE); 3735 } 3736 if (mDragMode == DRAG_MODE_CREATE_FOLDER && !userFolderPending) { 3737 setDragMode(DRAG_MODE_NONE); 3738 } 3739 3740 return; 3741 } 3742 3743 class FolderCreationAlarmListener implements OnAlarmListener { 3744 CellLayout layout; 3745 int cellX; 3746 int cellY; 3747 3748 public FolderCreationAlarmListener(CellLayout layout, int cellX, int cellY) { 3749 this.layout = layout; 3750 this.cellX = cellX; 3751 this.cellY = cellY; 3752 } 3753 3754 public void onAlarm(Alarm alarm) { 3755 if (mDragFolderRingAnimator != null) { 3756 // This shouldn't happen ever, but just in case, make sure we clean up the mess. 3757 mDragFolderRingAnimator.animateToNaturalState(); 3758 } 3759 mDragFolderRingAnimator = new FolderRingAnimator(mLauncher, null); 3760 mDragFolderRingAnimator.setCell(cellX, cellY); 3761 mDragFolderRingAnimator.setCellLayout(layout); 3762 mDragFolderRingAnimator.animateToAcceptState(); 3763 layout.showFolderAccept(mDragFolderRingAnimator); 3764 layout.clearDragOutlines(); 3765 setDragMode(DRAG_MODE_CREATE_FOLDER); 3766 } 3767 } 3768 3769 class ReorderAlarmListener implements OnAlarmListener { 3770 float[] dragViewCenter; 3771 int minSpanX, minSpanY, spanX, spanY; 3772 DragView dragView; 3773 View child; 3774 3775 public ReorderAlarmListener(float[] dragViewCenter, int minSpanX, int minSpanY, int spanX, 3776 int spanY, DragView dragView, View child) { 3777 this.dragViewCenter = dragViewCenter; 3778 this.minSpanX = minSpanX; 3779 this.minSpanY = minSpanY; 3780 this.spanX = spanX; 3781 this.spanY = spanY; 3782 this.child = child; 3783 this.dragView = dragView; 3784 } 3785 3786 public void onAlarm(Alarm alarm) { 3787 int[] resultSpan = new int[2]; 3788 mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], 3789 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, mDragTargetLayout, 3790 mTargetCell); 3791 mLastReorderX = mTargetCell[0]; 3792 mLastReorderY = mTargetCell[1]; 3793 3794 mTargetCell = mDragTargetLayout.performReorder((int) mDragViewVisualCenter[0], 3795 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, spanX, spanY, 3796 child, mTargetCell, resultSpan, CellLayout.MODE_DRAG_OVER); 3797 3798 if (mTargetCell[0] < 0 || mTargetCell[1] < 0) { 3799 mDragTargetLayout.revertTempState(); 3800 } else { 3801 setDragMode(DRAG_MODE_REORDER); 3802 } 3803 3804 boolean resize = resultSpan[0] != spanX || resultSpan[1] != spanY; 3805 mDragTargetLayout.visualizeDropLocation(child, mDragOutline, 3806 (int) mDragViewVisualCenter[0], (int) mDragViewVisualCenter[1], 3807 mTargetCell[0], mTargetCell[1], resultSpan[0], resultSpan[1], resize, 3808 dragView.getDragVisualizeOffset(), dragView.getDragRegion()); 3809 } 3810 } 3811 3812 @Override 3813 public void getHitRectRelativeToDragLayer(Rect outRect) { 3814 // We want the workspace to have the whole area of the display (it will find the correct 3815 // cell layout to drop to in the existing drag/drop logic. 3816 mLauncher.getDragLayer().getDescendantRectRelativeToSelf(this, outRect); 3817 } 3818 3819 /** 3820 * Add the item specified by dragInfo to the given layout. 3821 * @return true if successful 3822 */ 3823 public boolean addExternalItemToScreen(ItemInfo dragInfo, CellLayout layout) { 3824 if (layout.findCellForSpan(mTempEstimate, dragInfo.spanX, dragInfo.spanY)) { 3825 onDropExternal(dragInfo.dropPos, (ItemInfo) dragInfo, (CellLayout) layout, false); 3826 return true; 3827 } 3828 mLauncher.showOutOfSpaceMessage(mLauncher.isHotseatLayout(layout)); 3829 return false; 3830 } 3831 3832 private void onDropExternal(int[] touchXY, Object dragInfo, 3833 CellLayout cellLayout, boolean insertAtFirst) { 3834 onDropExternal(touchXY, dragInfo, cellLayout, insertAtFirst, null); 3835 } 3836 3837 /** 3838 * Drop an item that didn't originate on one of the workspace screens. 3839 * It may have come from Launcher (e.g. from all apps or customize), or it may have 3840 * come from another app altogether. 3841 * 3842 * NOTE: This can also be called when we are outside of a drag event, when we want 3843 * to add an item to one of the workspace screens. 3844 */ 3845 private void onDropExternal(final int[] touchXY, final Object dragInfo, 3846 final CellLayout cellLayout, boolean insertAtFirst, DragObject d) { 3847 final Runnable exitSpringLoadedRunnable = new Runnable() { 3848 @Override 3849 public void run() { 3850 mLauncher.exitSpringLoadedDragModeDelayed(true, 3851 Launcher.EXIT_SPRINGLOADED_MODE_SHORT_TIMEOUT, null); 3852 } 3853 }; 3854 3855 ItemInfo info = (ItemInfo) dragInfo; 3856 int spanX = info.spanX; 3857 int spanY = info.spanY; 3858 if (mDragInfo != null) { 3859 spanX = mDragInfo.spanX; 3860 spanY = mDragInfo.spanY; 3861 } 3862 3863 final long container = mLauncher.isHotseatLayout(cellLayout) ? 3864 LauncherSettings.Favorites.CONTAINER_HOTSEAT : 3865 LauncherSettings.Favorites.CONTAINER_DESKTOP; 3866 final long screenId = getIdForScreen(cellLayout); 3867 if (!mLauncher.isHotseatLayout(cellLayout) 3868 && screenId != getScreenIdForPageIndex(mCurrentPage) 3869 && mState != State.SPRING_LOADED) { 3870 snapToScreenId(screenId, null); 3871 } 3872 3873 if (info instanceof PendingAddItemInfo) { 3874 final PendingAddItemInfo pendingInfo = (PendingAddItemInfo) dragInfo; 3875 3876 boolean findNearestVacantCell = true; 3877 if (pendingInfo.itemType == LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT) { 3878 mTargetCell = findNearestArea((int) touchXY[0], (int) touchXY[1], spanX, spanY, 3879 cellLayout, mTargetCell); 3880 float distance = cellLayout.getDistanceFromCell(mDragViewVisualCenter[0], 3881 mDragViewVisualCenter[1], mTargetCell); 3882 if (willCreateUserFolder((ItemInfo) d.dragInfo, cellLayout, mTargetCell, 3883 distance, true) || willAddToExistingUserFolder((ItemInfo) d.dragInfo, 3884 cellLayout, mTargetCell, distance)) { 3885 findNearestVacantCell = false; 3886 } 3887 } 3888 3889 final ItemInfo item = (ItemInfo) d.dragInfo; 3890 boolean updateWidgetSize = false; 3891 if (findNearestVacantCell) { 3892 int minSpanX = item.spanX; 3893 int minSpanY = item.spanY; 3894 if (item.minSpanX > 0 && item.minSpanY > 0) { 3895 minSpanX = item.minSpanX; 3896 minSpanY = item.minSpanY; 3897 } 3898 int[] resultSpan = new int[2]; 3899 mTargetCell = cellLayout.performReorder((int) mDragViewVisualCenter[0], 3900 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, info.spanX, info.spanY, 3901 null, mTargetCell, resultSpan, CellLayout.MODE_ON_DROP_EXTERNAL); 3902 3903 if (resultSpan[0] != item.spanX || resultSpan[1] != item.spanY) { 3904 updateWidgetSize = true; 3905 } 3906 item.spanX = resultSpan[0]; 3907 item.spanY = resultSpan[1]; 3908 } 3909 3910 Runnable onAnimationCompleteRunnable = new Runnable() { 3911 @Override 3912 public void run() { 3913 // Normally removeExtraEmptyScreen is called in Workspace#onDragEnd, but when 3914 // adding an item that may not be dropped right away (due to a config activity) 3915 // we defer the removal until the activity returns. 3916 deferRemoveExtraEmptyScreen(); 3917 3918 // When dragging and dropping from customization tray, we deal with creating 3919 // widgets/shortcuts/folders in a slightly different way 3920 switch (pendingInfo.itemType) { 3921 case LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET: 3922 int span[] = new int[2]; 3923 span[0] = item.spanX; 3924 span[1] = item.spanY; 3925 mLauncher.addAppWidgetFromDrop((PendingAddWidgetInfo) pendingInfo, 3926 container, screenId, mTargetCell, span, null); 3927 break; 3928 case LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT: 3929 mLauncher.processShortcutFromDrop(pendingInfo.componentName, 3930 container, screenId, mTargetCell, null); 3931 break; 3932 default: 3933 throw new IllegalStateException("Unknown item type: " + 3934 pendingInfo.itemType); 3935 } 3936 } 3937 }; 3938 View finalView = pendingInfo.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET 3939 ? ((PendingAddWidgetInfo) pendingInfo).boundWidget : null; 3940 3941 if (finalView instanceof AppWidgetHostView && updateWidgetSize) { 3942 AppWidgetHostView awhv = (AppWidgetHostView) finalView; 3943 AppWidgetResizeFrame.updateWidgetSizeRanges(awhv, mLauncher, item.spanX, 3944 item.spanY); 3945 } 3946 3947 int animationStyle = ANIMATE_INTO_POSITION_AND_DISAPPEAR; 3948 if (pendingInfo.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET && 3949 ((PendingAddWidgetInfo) pendingInfo).info.configure != null) { 3950 animationStyle = ANIMATE_INTO_POSITION_AND_REMAIN; 3951 } 3952 animateWidgetDrop(info, cellLayout, d.dragView, onAnimationCompleteRunnable, 3953 animationStyle, finalView, true); 3954 } else { 3955 // This is for other drag/drop cases, like dragging from All Apps 3956 View view = null; 3957 3958 switch (info.itemType) { 3959 case LauncherSettings.Favorites.ITEM_TYPE_APPLICATION: 3960 case LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT: 3961 if (info.container == NO_ID && info instanceof AppInfo) { 3962 // Came from all apps -- make a copy 3963 info = new ShortcutInfo((AppInfo) info); 3964 } 3965 view = mLauncher.createShortcut(R.layout.application, cellLayout, 3966 (ShortcutInfo) info); 3967 break; 3968 case LauncherSettings.Favorites.ITEM_TYPE_FOLDER: 3969 view = FolderIcon.fromXml(R.layout.folder_icon, mLauncher, cellLayout, 3970 (FolderInfo) info, mIconCache); 3971 break; 3972 default: 3973 throw new IllegalStateException("Unknown item type: " + info.itemType); 3974 } 3975 3976 // First we find the cell nearest to point at which the item is 3977 // dropped, without any consideration to whether there is an item there. 3978 if (touchXY != null) { 3979 mTargetCell = findNearestArea((int) touchXY[0], (int) touchXY[1], spanX, spanY, 3980 cellLayout, mTargetCell); 3981 float distance = cellLayout.getDistanceFromCell(mDragViewVisualCenter[0], 3982 mDragViewVisualCenter[1], mTargetCell); 3983 d.postAnimationRunnable = exitSpringLoadedRunnable; 3984 if (createUserFolderIfNecessary(view, container, cellLayout, mTargetCell, distance, 3985 true, d.dragView, d.postAnimationRunnable)) { 3986 // The folder cling isn't flexible enough to be shown in non-default workspace 3987 // positions. Also if they are creating a folder, we assume they don't need to 3988 // see the cling. 3989 mLauncher.markFolderClingDismissedIfNecessary(); 3990 return; 3991 } 3992 if (addToExistingFolderIfNecessary(view, cellLayout, mTargetCell, distance, d, 3993 true)) { 3994 return; 3995 } 3996 } 3997 3998 if (touchXY != null) { 3999 // when dragging and dropping, just find the closest free spot 4000 mTargetCell = cellLayout.performReorder((int) mDragViewVisualCenter[0], 4001 (int) mDragViewVisualCenter[1], 1, 1, 1, 1, 4002 null, mTargetCell, null, CellLayout.MODE_ON_DROP_EXTERNAL); 4003 } else { 4004 cellLayout.findCellForSpan(mTargetCell, 1, 1); 4005 } 4006 addInScreen(view, container, screenId, mTargetCell[0], mTargetCell[1], info.spanX, 4007 info.spanY, insertAtFirst); 4008 cellLayout.onDropChild(view); 4009 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) view.getLayoutParams(); 4010 cellLayout.getShortcutsAndWidgets().measureChild(view); 4011 4012 LauncherModel.addOrMoveItemInDatabase(mLauncher, info, container, screenId, 4013 lp.cellX, lp.cellY); 4014 4015 if (d.dragView != null) { 4016 // We wrap the animation call in the temporary set and reset of the current 4017 // cellLayout to its final transform -- this means we animate the drag view to 4018 // the correct final location. 4019 setFinalTransitionTransform(cellLayout); 4020 mLauncher.getDragLayer().animateViewIntoPosition(d.dragView, view, 4021 exitSpringLoadedRunnable, this); 4022 resetTransitionTransform(cellLayout); 4023 } 4024 } 4025 } 4026 4027 public Bitmap createWidgetBitmap(ItemInfo widgetInfo, View layout) { 4028 int[] unScaledSize = mLauncher.getWorkspace().estimateItemSize(widgetInfo.spanX, 4029 widgetInfo.spanY, widgetInfo, false); 4030 int visibility = layout.getVisibility(); 4031 layout.setVisibility(VISIBLE); 4032 4033 int width = MeasureSpec.makeMeasureSpec(unScaledSize[0], MeasureSpec.EXACTLY); 4034 int height = MeasureSpec.makeMeasureSpec(unScaledSize[1], MeasureSpec.EXACTLY); 4035 Bitmap b = Bitmap.createBitmap(unScaledSize[0], unScaledSize[1], 4036 Bitmap.Config.ARGB_8888); 4037 Canvas c = new Canvas(b); 4038 4039 layout.measure(width, height); 4040 layout.layout(0, 0, unScaledSize[0], unScaledSize[1]); 4041 layout.draw(c); 4042 c.setBitmap(null); 4043 layout.setVisibility(visibility); 4044 return b; 4045 } 4046 4047 private void getFinalPositionForDropAnimation(int[] loc, float[] scaleXY, 4048 DragView dragView, CellLayout layout, ItemInfo info, int[] targetCell, 4049 boolean external, boolean scale) { 4050 // Now we animate the dragView, (ie. the widget or shortcut preview) into its final 4051 // location and size on the home screen. 4052 int spanX = info.spanX; 4053 int spanY = info.spanY; 4054 4055 Rect r = estimateItemPosition(layout, info, targetCell[0], targetCell[1], spanX, spanY); 4056 loc[0] = r.left; 4057 loc[1] = r.top; 4058 4059 setFinalTransitionTransform(layout); 4060 float cellLayoutScale = 4061 mLauncher.getDragLayer().getDescendantCoordRelativeToSelf(layout, loc, true); 4062 resetTransitionTransform(layout); 4063 4064 float dragViewScaleX; 4065 float dragViewScaleY; 4066 if (scale) { 4067 dragViewScaleX = (1.0f * r.width()) / dragView.getMeasuredWidth(); 4068 dragViewScaleY = (1.0f * r.height()) / dragView.getMeasuredHeight(); 4069 } else { 4070 dragViewScaleX = 1f; 4071 dragViewScaleY = 1f; 4072 } 4073 4074 // The animation will scale the dragView about its center, so we need to center about 4075 // the final location. 4076 loc[0] -= (dragView.getMeasuredWidth() - cellLayoutScale * r.width()) / 2; 4077 loc[1] -= (dragView.getMeasuredHeight() - cellLayoutScale * r.height()) / 2; 4078 4079 scaleXY[0] = dragViewScaleX * cellLayoutScale; 4080 scaleXY[1] = dragViewScaleY * cellLayoutScale; 4081 } 4082 4083 public void animateWidgetDrop(ItemInfo info, CellLayout cellLayout, DragView dragView, 4084 final Runnable onCompleteRunnable, int animationType, final View finalView, 4085 boolean external) { 4086 Rect from = new Rect(); 4087 mLauncher.getDragLayer().getViewRectRelativeToSelf(dragView, from); 4088 4089 int[] finalPos = new int[2]; 4090 float scaleXY[] = new float[2]; 4091 boolean scalePreview = !(info instanceof PendingAddShortcutInfo); 4092 getFinalPositionForDropAnimation(finalPos, scaleXY, dragView, cellLayout, info, mTargetCell, 4093 external, scalePreview); 4094 4095 Resources res = mLauncher.getResources(); 4096 final int duration = res.getInteger(R.integer.config_dropAnimMaxDuration) - 200; 4097 4098 // In the case where we've prebound the widget, we remove it from the DragLayer 4099 if (finalView instanceof AppWidgetHostView && external) { 4100 Log.d(TAG, "6557954 Animate widget drop, final view is appWidgetHostView"); 4101 mLauncher.getDragLayer().removeView(finalView); 4102 } 4103 if ((animationType == ANIMATE_INTO_POSITION_AND_RESIZE || external) && finalView != null) { 4104 Bitmap crossFadeBitmap = createWidgetBitmap(info, finalView); 4105 dragView.setCrossFadeBitmap(crossFadeBitmap); 4106 dragView.crossFade((int) (duration * 0.8f)); 4107 } else if (info.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET && external) { 4108 scaleXY[0] = scaleXY[1] = Math.min(scaleXY[0], scaleXY[1]); 4109 } 4110 4111 DragLayer dragLayer = mLauncher.getDragLayer(); 4112 if (animationType == CANCEL_TWO_STAGE_WIDGET_DROP_ANIMATION) { 4113 mLauncher.getDragLayer().animateViewIntoPosition(dragView, finalPos, 0f, 0.1f, 0.1f, 4114 DragLayer.ANIMATION_END_DISAPPEAR, onCompleteRunnable, duration); 4115 } else { 4116 int endStyle; 4117 if (animationType == ANIMATE_INTO_POSITION_AND_REMAIN) { 4118 endStyle = DragLayer.ANIMATION_END_REMAIN_VISIBLE; 4119 } else { 4120 endStyle = DragLayer.ANIMATION_END_DISAPPEAR;; 4121 } 4122 4123 Runnable onComplete = new Runnable() { 4124 @Override 4125 public void run() { 4126 if (finalView != null) { 4127 finalView.setVisibility(VISIBLE); 4128 } 4129 if (onCompleteRunnable != null) { 4130 onCompleteRunnable.run(); 4131 } 4132 } 4133 }; 4134 dragLayer.animateViewIntoPosition(dragView, from.left, from.top, finalPos[0], 4135 finalPos[1], 1, 1, 1, scaleXY[0], scaleXY[1], onComplete, endStyle, 4136 duration, this); 4137 } 4138 } 4139 4140 public void setFinalTransitionTransform(CellLayout layout) { 4141 if (isSwitchingState()) { 4142 mCurrentScale = getScaleX(); 4143 setScaleX(mNewScale); 4144 setScaleY(mNewScale); 4145 } 4146 } 4147 public void resetTransitionTransform(CellLayout layout) { 4148 if (isSwitchingState()) { 4149 setScaleX(mCurrentScale); 4150 setScaleY(mCurrentScale); 4151 } 4152 } 4153 4154 /** 4155 * Return the current {@link CellLayout}, correctly picking the destination 4156 * screen while a scroll is in progress. 4157 */ 4158 public CellLayout getCurrentDropLayout() { 4159 return (CellLayout) getChildAt(getNextPage()); 4160 } 4161 4162 /** 4163 * Return the current CellInfo describing our current drag; this method exists 4164 * so that Launcher can sync this object with the correct info when the activity is created/ 4165 * destroyed 4166 * 4167 */ 4168 public CellLayout.CellInfo getDragInfo() { 4169 return mDragInfo; 4170 } 4171 4172 public int getCurrentPageOffsetFromCustomContent() { 4173 return getNextPage() - numCustomPages(); 4174 } 4175 4176 /** 4177 * Calculate the nearest cell where the given object would be dropped. 4178 * 4179 * pixelX and pixelY should be in the coordinate system of layout 4180 */ 4181 private int[] findNearestArea(int pixelX, int pixelY, 4182 int spanX, int spanY, CellLayout layout, int[] recycle) { 4183 return layout.findNearestArea( 4184 pixelX, pixelY, spanX, spanY, recycle); 4185 } 4186 4187 void setup(DragController dragController) { 4188 mSpringLoadedDragController = new SpringLoadedDragController(mLauncher); 4189 mDragController = dragController; 4190 4191 // hardware layers on children are enabled on startup, but should be disabled until 4192 // needed 4193 updateChildrenLayersEnabled(false); 4194 } 4195 4196 /** 4197 * Called at the end of a drag which originated on the workspace. 4198 */ 4199 public void onDropCompleted(final View target, final DragObject d, 4200 final boolean isFlingToDelete, final boolean success) { 4201 if (mDeferDropAfterUninstall) { 4202 mDeferredAction = new Runnable() { 4203 public void run() { 4204 onDropCompleted(target, d, isFlingToDelete, success); 4205 mDeferredAction = null; 4206 } 4207 }; 4208 return; 4209 } 4210 4211 boolean beingCalledAfterUninstall = mDeferredAction != null; 4212 4213 if (success && !(beingCalledAfterUninstall && !mUninstallSuccessful)) { 4214 if (target != this && mDragInfo != null) { 4215 CellLayout parentCell = getParentCellLayoutForView(mDragInfo.cell); 4216 if (parentCell != null) { 4217 parentCell.removeView(mDragInfo.cell); 4218 } 4219 if (mDragInfo.cell instanceof DropTarget) { 4220 mDragController.removeDropTarget((DropTarget) mDragInfo.cell); 4221 } 4222 } 4223 } else if (mDragInfo != null) { 4224 CellLayout cellLayout; 4225 if (mLauncher.isHotseatLayout(target)) { 4226 cellLayout = mLauncher.getHotseat().getLayout(); 4227 } else { 4228 cellLayout = getScreenWithId(mDragInfo.screenId); 4229 } 4230 if (cellLayout == null && LauncherAppState.isDogfoodBuild()) { 4231 throw new RuntimeException("Invalid state: cellLayout == null in " 4232 + "Workspace#onDropCompleted. Please file a bug. "); 4233 } 4234 if (cellLayout != null) { 4235 cellLayout.onDropChild(mDragInfo.cell); 4236 } 4237 } 4238 if ((d.cancelled || (beingCalledAfterUninstall && !mUninstallSuccessful)) 4239 && mDragInfo.cell != null) { 4240 mDragInfo.cell.setVisibility(VISIBLE); 4241 } 4242 mDragOutline = null; 4243 mDragInfo = null; 4244 } 4245 4246 public void deferCompleteDropAfterUninstallActivity() { 4247 mDeferDropAfterUninstall = true; 4248 } 4249 4250 /// maybe move this into a smaller part 4251 public void onUninstallActivityReturned(boolean success) { 4252 mDeferDropAfterUninstall = false; 4253 mUninstallSuccessful = success; 4254 if (mDeferredAction != null) { 4255 mDeferredAction.run(); 4256 } 4257 } 4258 4259 void updateItemLocationsInDatabase(CellLayout cl) { 4260 int count = cl.getShortcutsAndWidgets().getChildCount(); 4261 4262 long screenId = getIdForScreen(cl); 4263 int container = Favorites.CONTAINER_DESKTOP; 4264 4265 if (mLauncher.isHotseatLayout(cl)) { 4266 screenId = -1; 4267 container = Favorites.CONTAINER_HOTSEAT; 4268 } 4269 4270 for (int i = 0; i < count; i++) { 4271 View v = cl.getShortcutsAndWidgets().getChildAt(i); 4272 ItemInfo info = (ItemInfo) v.getTag(); 4273 // Null check required as the AllApps button doesn't have an item info 4274 if (info != null && info.requiresDbUpdate) { 4275 info.requiresDbUpdate = false; 4276 LauncherModel.modifyItemInDatabase(mLauncher, info, container, screenId, info.cellX, 4277 info.cellY, info.spanX, info.spanY); 4278 } 4279 } 4280 } 4281 4282 ArrayList<ComponentName> getUniqueComponents(boolean stripDuplicates, ArrayList<ComponentName> duplicates) { 4283 ArrayList<ComponentName> uniqueIntents = new ArrayList<ComponentName>(); 4284 getUniqueIntents((CellLayout) mLauncher.getHotseat().getLayout(), uniqueIntents, duplicates, false); 4285 int count = getChildCount(); 4286 for (int i = 0; i < count; i++) { 4287 CellLayout cl = (CellLayout) getChildAt(i); 4288 getUniqueIntents(cl, uniqueIntents, duplicates, false); 4289 } 4290 return uniqueIntents; 4291 } 4292 4293 void getUniqueIntents(CellLayout cl, ArrayList<ComponentName> uniqueIntents, 4294 ArrayList<ComponentName> duplicates, boolean stripDuplicates) { 4295 int count = cl.getShortcutsAndWidgets().getChildCount(); 4296 4297 ArrayList<View> children = new ArrayList<View>(); 4298 for (int i = 0; i < count; i++) { 4299 View v = cl.getShortcutsAndWidgets().getChildAt(i); 4300 children.add(v); 4301 } 4302 4303 for (int i = 0; i < count; i++) { 4304 View v = children.get(i); 4305 ItemInfo info = (ItemInfo) v.getTag(); 4306 // Null check required as the AllApps button doesn't have an item info 4307 if (info instanceof ShortcutInfo) { 4308 ShortcutInfo si = (ShortcutInfo) info; 4309 ComponentName cn = si.intent.getComponent(); 4310 4311 Uri dataUri = si.intent.getData(); 4312 // If dataUri is not null / empty or if this component isn't one that would 4313 // have previously showed up in the AllApps list, then this is a widget-type 4314 // shortcut, so ignore it. 4315 if (dataUri != null && !dataUri.equals(Uri.EMPTY)) { 4316 continue; 4317 } 4318 4319 if (!uniqueIntents.contains(cn)) { 4320 uniqueIntents.add(cn); 4321 } else { 4322 if (stripDuplicates) { 4323 cl.removeViewInLayout(v); 4324 LauncherModel.deleteItemFromDatabase(mLauncher, si); 4325 } 4326 if (duplicates != null) { 4327 duplicates.add(cn); 4328 } 4329 } 4330 } 4331 if (v instanceof FolderIcon) { 4332 FolderIcon fi = (FolderIcon) v; 4333 ArrayList<View> items = fi.getFolder().getItemsInReadingOrder(); 4334 for (int j = 0; j < items.size(); j++) { 4335 if (items.get(j).getTag() instanceof ShortcutInfo) { 4336 ShortcutInfo si = (ShortcutInfo) items.get(j).getTag(); 4337 ComponentName cn = si.intent.getComponent(); 4338 4339 Uri dataUri = si.intent.getData(); 4340 // If dataUri is not null / empty or if this component isn't one that would 4341 // have previously showed up in the AllApps list, then this is a widget-type 4342 // shortcut, so ignore it. 4343 if (dataUri != null && !dataUri.equals(Uri.EMPTY)) { 4344 continue; 4345 } 4346 4347 if (!uniqueIntents.contains(cn)) { 4348 uniqueIntents.add(cn); 4349 } else { 4350 if (stripDuplicates) { 4351 fi.getFolderInfo().remove(si); 4352 LauncherModel.deleteItemFromDatabase(mLauncher, si); 4353 } 4354 if (duplicates != null) { 4355 duplicates.add(cn); 4356 } 4357 } 4358 } 4359 } 4360 } 4361 } 4362 } 4363 4364 void saveWorkspaceToDb() { 4365 saveWorkspaceScreenToDb((CellLayout) mLauncher.getHotseat().getLayout()); 4366 int count = getChildCount(); 4367 for (int i = 0; i < count; i++) { 4368 CellLayout cl = (CellLayout) getChildAt(i); 4369 saveWorkspaceScreenToDb(cl); 4370 } 4371 } 4372 4373 void saveWorkspaceScreenToDb(CellLayout cl) { 4374 int count = cl.getShortcutsAndWidgets().getChildCount(); 4375 4376 long screenId = getIdForScreen(cl); 4377 int container = Favorites.CONTAINER_DESKTOP; 4378 4379 Hotseat hotseat = mLauncher.getHotseat(); 4380 if (mLauncher.isHotseatLayout(cl)) { 4381 screenId = -1; 4382 container = Favorites.CONTAINER_HOTSEAT; 4383 } 4384 4385 for (int i = 0; i < count; i++) { 4386 View v = cl.getShortcutsAndWidgets().getChildAt(i); 4387 ItemInfo info = (ItemInfo) v.getTag(); 4388 // Null check required as the AllApps button doesn't have an item info 4389 if (info != null) { 4390 int cellX = info.cellX; 4391 int cellY = info.cellY; 4392 if (container == Favorites.CONTAINER_HOTSEAT) { 4393 cellX = hotseat.getCellXFromOrder((int) info.screenId); 4394 cellY = hotseat.getCellYFromOrder((int) info.screenId); 4395 } 4396 LauncherModel.addItemToDatabase(mLauncher, info, container, screenId, cellX, 4397 cellY, false); 4398 } 4399 if (v instanceof FolderIcon) { 4400 FolderIcon fi = (FolderIcon) v; 4401 fi.getFolder().addItemLocationsInDatabase(); 4402 } 4403 } 4404 } 4405 4406 @Override 4407 public float getIntrinsicIconScaleFactor() { 4408 return 1f; 4409 } 4410 4411 @Override 4412 public boolean supportsFlingToDelete() { 4413 return true; 4414 } 4415 4416 @Override 4417 public boolean supportsAppInfoDropTarget() { 4418 return false; 4419 } 4420 4421 @Override 4422 public boolean supportsDeleteDropTarget() { 4423 return true; 4424 } 4425 4426 @Override 4427 public void onFlingToDelete(DragObject d, int x, int y, PointF vec) { 4428 // Do nothing 4429 } 4430 4431 @Override 4432 public void onFlingToDeleteCompleted() { 4433 // Do nothing 4434 } 4435 4436 public boolean isDropEnabled() { 4437 return true; 4438 } 4439 4440 @Override 4441 protected void onRestoreInstanceState(Parcelable state) { 4442 super.onRestoreInstanceState(state); 4443 Launcher.setScreen(mCurrentPage); 4444 } 4445 4446 @Override 4447 protected void dispatchRestoreInstanceState(SparseArray<Parcelable> container) { 4448 // We don't dispatch restoreInstanceState to our children using this code path. 4449 // Some pages will be restored immediately as their items are bound immediately, and 4450 // others we will need to wait until after their items are bound. 4451 mSavedStates = container; 4452 } 4453 4454 public void restoreInstanceStateForChild(int child) { 4455 if (mSavedStates != null) { 4456 mRestoredPages.add(child); 4457 CellLayout cl = (CellLayout) getChildAt(child); 4458 if (cl != null) { 4459 cl.restoreInstanceState(mSavedStates); 4460 } 4461 } 4462 } 4463 4464 public void restoreInstanceStateForRemainingPages() { 4465 int count = getChildCount(); 4466 for (int i = 0; i < count; i++) { 4467 if (!mRestoredPages.contains(i)) { 4468 restoreInstanceStateForChild(i); 4469 } 4470 } 4471 mRestoredPages.clear(); 4472 mSavedStates = null; 4473 } 4474 4475 @Override 4476 public void scrollLeft() { 4477 if (!isSmall() && !mIsSwitchingState) { 4478 super.scrollLeft(); 4479 } 4480 Folder openFolder = getOpenFolder(); 4481 if (openFolder != null) { 4482 openFolder.completeDragExit(); 4483 } 4484 } 4485 4486 @Override 4487 public void scrollRight() { 4488 if (!isSmall() && !mIsSwitchingState) { 4489 super.scrollRight(); 4490 } 4491 Folder openFolder = getOpenFolder(); 4492 if (openFolder != null) { 4493 openFolder.completeDragExit(); 4494 } 4495 } 4496 4497 @Override 4498 public boolean onEnterScrollArea(int x, int y, int direction) { 4499 // Ignore the scroll area if we are dragging over the hot seat 4500 boolean isPortrait = !LauncherAppState.isScreenLandscape(getContext()); 4501 if (mLauncher.getHotseat() != null && isPortrait) { 4502 Rect r = new Rect(); 4503 mLauncher.getHotseat().getHitRect(r); 4504 if (r.contains(x, y)) { 4505 return false; 4506 } 4507 } 4508 4509 boolean result = false; 4510 if (!isSmall() && !mIsSwitchingState && getOpenFolder() == null) { 4511 mInScrollArea = true; 4512 4513 final int page = getNextPage() + 4514 (direction == DragController.SCROLL_LEFT ? -1 : 1); 4515 // We always want to exit the current layout to ensure parity of enter / exit 4516 setCurrentDropLayout(null); 4517 4518 if (0 <= page && page < getChildCount()) { 4519 // Ensure that we are not dragging over to the custom content screen 4520 if (getScreenIdForPageIndex(page) == CUSTOM_CONTENT_SCREEN_ID) { 4521 return false; 4522 } 4523 4524 CellLayout layout = (CellLayout) getChildAt(page); 4525 setCurrentDragOverlappingLayout(layout); 4526 4527 // Workspace is responsible for drawing the edge glow on adjacent pages, 4528 // so we need to redraw the workspace when this may have changed. 4529 invalidate(); 4530 result = true; 4531 } 4532 } 4533 return result; 4534 } 4535 4536 @Override 4537 public boolean onExitScrollArea() { 4538 boolean result = false; 4539 if (mInScrollArea) { 4540 invalidate(); 4541 CellLayout layout = getCurrentDropLayout(); 4542 setCurrentDropLayout(layout); 4543 setCurrentDragOverlappingLayout(layout); 4544 4545 result = true; 4546 mInScrollArea = false; 4547 } 4548 return result; 4549 } 4550 4551 private void onResetScrollArea() { 4552 setCurrentDragOverlappingLayout(null); 4553 mInScrollArea = false; 4554 } 4555 4556 /** 4557 * Returns a specific CellLayout 4558 */ 4559 CellLayout getParentCellLayoutForView(View v) { 4560 ArrayList<CellLayout> layouts = getWorkspaceAndHotseatCellLayouts(); 4561 for (CellLayout layout : layouts) { 4562 if (layout.getShortcutsAndWidgets().indexOfChild(v) > -1) { 4563 return layout; 4564 } 4565 } 4566 return null; 4567 } 4568 4569 /** 4570 * Returns a list of all the CellLayouts in the workspace. 4571 */ 4572 ArrayList<CellLayout> getWorkspaceAndHotseatCellLayouts() { 4573 ArrayList<CellLayout> layouts = new ArrayList<CellLayout>(); 4574 int screenCount = getChildCount(); 4575 for (int screen = 0; screen < screenCount; screen++) { 4576 layouts.add(((CellLayout) getChildAt(screen))); 4577 } 4578 if (mLauncher.getHotseat() != null) { 4579 layouts.add(mLauncher.getHotseat().getLayout()); 4580 } 4581 return layouts; 4582 } 4583 4584 /** 4585 * We should only use this to search for specific children. Do not use this method to modify 4586 * ShortcutsAndWidgetsContainer directly. Includes ShortcutAndWidgetContainers from 4587 * the hotseat and workspace pages 4588 */ 4589 ArrayList<ShortcutAndWidgetContainer> getAllShortcutAndWidgetContainers() { 4590 ArrayList<ShortcutAndWidgetContainer> childrenLayouts = 4591 new ArrayList<ShortcutAndWidgetContainer>(); 4592 int screenCount = getChildCount(); 4593 for (int screen = 0; screen < screenCount; screen++) { 4594 childrenLayouts.add(((CellLayout) getChildAt(screen)).getShortcutsAndWidgets()); 4595 } 4596 if (mLauncher.getHotseat() != null) { 4597 childrenLayouts.add(mLauncher.getHotseat().getLayout().getShortcutsAndWidgets()); 4598 } 4599 return childrenLayouts; 4600 } 4601 4602 public Folder getFolderForTag(final Object tag) { 4603 final Folder[] value = new Folder[1]; 4604 mapOverShortcuts(MAP_NO_RECURSE, new ShortcutOperator() { 4605 @Override 4606 public boolean evaluate(ItemInfo info, View v, View parent) { 4607 if (v instanceof Folder) { 4608 Folder f = (Folder) v; 4609 if (f.getInfo() == tag && f.getInfo().opened) { 4610 value[0] = f; 4611 return true; 4612 } 4613 } 4614 return false; 4615 } 4616 }); 4617 return value[0]; 4618 } 4619 4620 public View getViewForTag(final Object tag) { 4621 final View[] value = new View[1]; 4622 mapOverShortcuts(MAP_NO_RECURSE, new ShortcutOperator() { 4623 @Override 4624 public boolean evaluate(ItemInfo info, View v, View parent) { 4625 if (v.getTag() == tag) { 4626 value[0] = v; 4627 return true; 4628 } 4629 return false; 4630 } 4631 }); 4632 return value[0]; 4633 } 4634 4635 void clearDropTargets() { 4636 mapOverShortcuts(MAP_NO_RECURSE, new ShortcutOperator() { 4637 @Override 4638 public boolean evaluate(ItemInfo info, View v, View parent) { 4639 if (v instanceof DropTarget) { 4640 mDragController.removeDropTarget((DropTarget) v); 4641 } 4642 // not done, process all the shortcuts 4643 return false; 4644 } 4645 }); 4646 } 4647 4648 // Removes ALL items that match a given package name, this is usually called when a package 4649 // has been removed and we want to remove all components (widgets, shortcuts, apps) that 4650 // belong to that package. 4651 void removeItemsByPackageName(final ArrayList<String> packages, final UserHandleCompat user) { 4652 final HashSet<String> packageNames = new HashSet<String>(); 4653 packageNames.addAll(packages); 4654 4655 // Filter out all the ItemInfos that this is going to affect 4656 final HashSet<ItemInfo> infos = new HashSet<ItemInfo>(); 4657 final HashSet<ComponentName> cns = new HashSet<ComponentName>(); 4658 ArrayList<CellLayout> cellLayouts = getWorkspaceAndHotseatCellLayouts(); 4659 for (CellLayout layoutParent : cellLayouts) { 4660 ViewGroup layout = layoutParent.getShortcutsAndWidgets(); 4661 int childCount = layout.getChildCount(); 4662 for (int i = 0; i < childCount; ++i) { 4663 View view = layout.getChildAt(i); 4664 infos.add((ItemInfo) view.getTag()); 4665 } 4666 } 4667 LauncherModel.ItemInfoFilter filter = new LauncherModel.ItemInfoFilter() { 4668 @Override 4669 public boolean filterItem(ItemInfo parent, ItemInfo info, 4670 ComponentName cn) { 4671 if (packageNames.contains(cn.getPackageName()) 4672 && info.user.equals(user)) { 4673 cns.add(cn); 4674 return true; 4675 } 4676 return false; 4677 } 4678 }; 4679 LauncherModel.filterItemInfos(infos, filter); 4680 4681 // Remove the affected components 4682 removeItemsByComponentName(cns, user); 4683 } 4684 4685 // Removes items that match the application info specified, when applications are removed 4686 // as a part of an update, this is called to ensure that other widgets and application 4687 // shortcuts are not removed. 4688 void removeItemsByApplicationInfo(final ArrayList<AppInfo> appInfos, UserHandleCompat user) { 4689 // Just create a hash table of all the specific components that this will affect 4690 HashSet<ComponentName> cns = new HashSet<ComponentName>(); 4691 for (AppInfo info : appInfos) { 4692 cns.add(info.componentName); 4693 } 4694 4695 // Remove all the things 4696 removeItemsByComponentName(cns, user); 4697 } 4698 4699 void removeItemsByComponentName(final HashSet<ComponentName> componentNames, 4700 final UserHandleCompat user) { 4701 ArrayList<CellLayout> cellLayouts = getWorkspaceAndHotseatCellLayouts(); 4702 for (final CellLayout layoutParent: cellLayouts) { 4703 final ViewGroup layout = layoutParent.getShortcutsAndWidgets(); 4704 4705 final HashMap<ItemInfo, View> children = new HashMap<ItemInfo, View>(); 4706 for (int j = 0; j < layout.getChildCount(); j++) { 4707 final View view = layout.getChildAt(j); 4708 children.put((ItemInfo) view.getTag(), view); 4709 } 4710 4711 final ArrayList<View> childrenToRemove = new ArrayList<View>(); 4712 final HashMap<FolderInfo, ArrayList<ShortcutInfo>> folderAppsToRemove = 4713 new HashMap<FolderInfo, ArrayList<ShortcutInfo>>(); 4714 LauncherModel.ItemInfoFilter filter = new LauncherModel.ItemInfoFilter() { 4715 @Override 4716 public boolean filterItem(ItemInfo parent, ItemInfo info, 4717 ComponentName cn) { 4718 if (parent instanceof FolderInfo) { 4719 if (componentNames.contains(cn) && info.user.equals(user)) { 4720 FolderInfo folder = (FolderInfo) parent; 4721 ArrayList<ShortcutInfo> appsToRemove; 4722 if (folderAppsToRemove.containsKey(folder)) { 4723 appsToRemove = folderAppsToRemove.get(folder); 4724 } else { 4725 appsToRemove = new ArrayList<ShortcutInfo>(); 4726 folderAppsToRemove.put(folder, appsToRemove); 4727 } 4728 appsToRemove.add((ShortcutInfo) info); 4729 return true; 4730 } 4731 } else { 4732 if (componentNames.contains(cn) && info.user.equals(user)) { 4733 childrenToRemove.add(children.get(info)); 4734 return true; 4735 } 4736 } 4737 return false; 4738 } 4739 }; 4740 LauncherModel.filterItemInfos(children.keySet(), filter); 4741 4742 // Remove all the apps from their folders 4743 for (FolderInfo folder : folderAppsToRemove.keySet()) { 4744 ArrayList<ShortcutInfo> appsToRemove = folderAppsToRemove.get(folder); 4745 for (ShortcutInfo info : appsToRemove) { 4746 folder.remove(info); 4747 } 4748 } 4749 4750 // Remove all the other children 4751 for (View child : childrenToRemove) { 4752 // Note: We can not remove the view directly from CellLayoutChildren as this 4753 // does not re-mark the spaces as unoccupied. 4754 layoutParent.removeViewInLayout(child); 4755 if (child instanceof DropTarget) { 4756 mDragController.removeDropTarget((DropTarget) child); 4757 } 4758 } 4759 4760 if (childrenToRemove.size() > 0) { 4761 layout.requestLayout(); 4762 layout.invalidate(); 4763 } 4764 } 4765 4766 // Strip all the empty screens 4767 stripEmptyScreens(); 4768 } 4769 4770 private void updateShortcut(HashMap<ComponentName, AppInfo> appsMap, ItemInfo info, 4771 View child) { 4772 ComponentName cn = info.getIntent().getComponent(); 4773 if (info.getRestoredIntent() != null) { 4774 cn = info.getRestoredIntent().getComponent(); 4775 } 4776 if (cn != null) { 4777 AppInfo appInfo = appsMap.get(cn); 4778 if ((appInfo != null) && LauncherModel.isShortcutInfoUpdateable(info)) { 4779 ShortcutInfo shortcutInfo = (ShortcutInfo) info; 4780 BubbleTextView shortcut = (BubbleTextView) child; 4781 shortcutInfo.restore(); 4782 shortcutInfo.updateIcon(mIconCache); 4783 shortcutInfo.title = appInfo.title.toString(); 4784 shortcut.applyFromShortcutInfo(shortcutInfo, mIconCache); 4785 } 4786 } 4787 } 4788 4789 interface ShortcutOperator { 4790 /** 4791 * Process the next shortcut, possibly with side-effect on {@link ShortcutOperator#value}. 4792 * 4793 * @param info info for the shortcut 4794 * @param view view for the shortcut 4795 * @param parent containing folder, or null 4796 * @return true if done, false to continue the map 4797 */ 4798 public boolean evaluate(ItemInfo info, View view, View parent); 4799 } 4800 4801 /** 4802 * Map the operator over the shortcuts, return the first-non-null value. 4803 * 4804 * @param recurse true: iterate over folder children. false: op get the folders themselves. 4805 * @param op the operator to map over the shortcuts 4806 */ 4807 void mapOverShortcuts(boolean recurse, ShortcutOperator op) { 4808 ArrayList<ShortcutAndWidgetContainer> containers = getAllShortcutAndWidgetContainers(); 4809 final int containerCount = containers.size(); 4810 for (int containerIdx = 0; containerIdx < containerCount; containerIdx++) { 4811 ShortcutAndWidgetContainer container = containers.get(containerIdx); 4812 // map over all the shortcuts on the workspace 4813 final int itemCount = container.getChildCount(); 4814 for (int itemIdx = 0; itemIdx < itemCount; itemIdx++) { 4815 View item = container.getChildAt(itemIdx); 4816 ItemInfo info = (ItemInfo) item.getTag(); 4817 if (recurse && info instanceof FolderInfo && item instanceof FolderIcon) { 4818 FolderIcon folder = (FolderIcon) item; 4819 ArrayList<View> folderChildren = folder.getFolder().getItemsInReadingOrder(); 4820 // map over all the children in the folder 4821 final int childCount = folderChildren.size(); 4822 for (int childIdx = 0; childIdx < childCount; childIdx++) { 4823 View child = folderChildren.get(childIdx); 4824 info = (ItemInfo) child.getTag(); 4825 if (op.evaluate(info, child, folder)) { 4826 return; 4827 } 4828 } 4829 } else { 4830 if (op.evaluate(info, item, null)) { 4831 return; 4832 } 4833 } 4834 } 4835 } 4836 } 4837 4838 void updateShortcuts(ArrayList<AppInfo> apps) { 4839 // Create a map of the apps to test against 4840 final HashMap<ComponentName, AppInfo> appsMap = new HashMap<ComponentName, AppInfo>(); 4841 for (AppInfo ai : apps) { 4842 appsMap.put(ai.componentName, ai); 4843 } 4844 4845 mapOverShortcuts(MAP_RECURSE, new ShortcutOperator() { 4846 @Override 4847 public boolean evaluate(ItemInfo info, View v, View parent) { 4848 if (info instanceof ShortcutInfo) { 4849 updateShortcut(appsMap, info, v); 4850 if (parent != null) { 4851 parent.invalidate(); 4852 } 4853 } 4854 // process all the shortcuts 4855 return false; 4856 } 4857 }); 4858 } 4859 4860 public void removeAbandonedPromise(BubbleTextView abandonedIcon, UserHandleCompat user) { 4861 if (abandonedIcon.getTag() != null && abandonedIcon.getTag() instanceof ShortcutInfo) { 4862 final ShortcutInfo shortcut = (ShortcutInfo) abandonedIcon.getTag(); 4863 if (shortcut.isAbandoned()) { 4864 HashSet<ComponentName> cns = new HashSet<ComponentName>(1); 4865 cns.add(shortcut.getRestoredIntent().getComponent()); 4866 LauncherModel.deleteItemFromDatabase(mLauncher, shortcut); 4867 removeItemsByComponentName(cns, user); 4868 } 4869 } 4870 } 4871 4872 public void updatePackageState(final String pkgName, final int state) { 4873 mapOverShortcuts(MAP_RECURSE, new ShortcutOperator() { 4874 @Override 4875 public boolean evaluate(ItemInfo info, View v, View parent) { 4876 if (info instanceof ShortcutInfo 4877 && ((ShortcutInfo) info).isPromiseFor(pkgName) 4878 && v instanceof BubbleTextView) { 4879 ((ShortcutInfo) info).setState(state); 4880 ((BubbleTextView)v).applyState(); 4881 } 4882 // process all the shortcuts 4883 return false; 4884 } 4885 }); 4886 } 4887 4888 private void moveToScreen(int page, boolean animate) { 4889 if (!isSmall()) { 4890 if (animate) { 4891 snapToPage(page); 4892 } else { 4893 setCurrentPage(page); 4894 } 4895 } 4896 View child = getChildAt(page); 4897 if (child != null) { 4898 child.requestFocus(); 4899 } 4900 } 4901 4902 void moveToDefaultScreen(boolean animate) { 4903 moveToScreen(mDefaultPage, animate); 4904 } 4905 4906 void moveToCustomContentScreen(boolean animate) { 4907 if (hasCustomContent()) { 4908 int ccIndex = getPageIndexForScreenId(CUSTOM_CONTENT_SCREEN_ID); 4909 if (animate) { 4910 snapToPage(ccIndex); 4911 } else { 4912 setCurrentPage(ccIndex); 4913 } 4914 View child = getChildAt(ccIndex); 4915 if (child != null) { 4916 child.requestFocus(); 4917 } 4918 } 4919 exitWidgetResizeMode(); 4920 } 4921 4922 @Override 4923 protected PageIndicator.PageMarkerResources getPageIndicatorMarker(int pageIndex) { 4924 long screenId = getScreenIdForPageIndex(pageIndex); 4925 if (screenId == EXTRA_EMPTY_SCREEN_ID) { 4926 int count = mScreenOrder.size() - numCustomPages(); 4927 if (count > 1) { 4928 return new PageIndicator.PageMarkerResources(R.drawable.ic_pageindicator_current, 4929 R.drawable.ic_pageindicator_add); 4930 } 4931 } 4932 4933 return super.getPageIndicatorMarker(pageIndex); 4934 } 4935 4936 @Override 4937 public void syncPages() { 4938 } 4939 4940 @Override 4941 public void syncPageItems(int page, boolean immediate) { 4942 } 4943 4944 protected String getPageIndicatorDescription() { 4945 String settings = getResources().getString(R.string.settings_button_text); 4946 return getCurrentPageDescription() + ", " + settings; 4947 } 4948 4949 protected String getCurrentPageDescription() { 4950 int page = (mNextPage != INVALID_PAGE) ? mNextPage : mCurrentPage; 4951 int delta = numCustomPages(); 4952 if (hasCustomContent() && getNextPage() == 0) { 4953 return mCustomContentDescription; 4954 } 4955 return String.format(getContext().getString(R.string.workspace_scroll_format), 4956 page + 1 - delta, getChildCount() - delta); 4957 } 4958 4959 public void getLocationInDragLayer(int[] loc) { 4960 mLauncher.getDragLayer().getLocationInDragLayer(this, loc); 4961 } 4962} 4963