Workspace.java revision c50438c802355dff714b04f42a32e518cb9e91d8
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.AppWidgetHost; 31import android.appwidget.AppWidgetHostView; 32import android.appwidget.AppWidgetProviderInfo; 33import android.content.ComponentName; 34import android.content.Context; 35import android.content.SharedPreferences; 36import android.content.res.Resources; 37import android.content.res.TypedArray; 38import android.graphics.Bitmap; 39import android.graphics.Canvas; 40import android.graphics.Matrix; 41import android.graphics.Paint; 42import android.graphics.Point; 43import android.graphics.PointF; 44import android.graphics.Rect; 45import android.graphics.Region.Op; 46import android.graphics.drawable.Drawable; 47import android.net.Uri; 48import android.os.AsyncTask; 49import android.os.Handler; 50import android.os.Handler.Callback; 51import android.os.IBinder; 52import android.os.Message; 53import android.os.Parcelable; 54import android.support.v4.view.ViewCompat; 55import android.util.AttributeSet; 56import android.util.Log; 57import android.util.SparseArray; 58import android.view.Choreographer; 59import android.view.Display; 60import android.view.MotionEvent; 61import android.view.View; 62import android.view.ViewGroup; 63import android.view.accessibility.AccessibilityManager; 64import android.view.animation.DecelerateInterpolator; 65import android.view.animation.Interpolator; 66import android.widget.TextView; 67 68import com.android.launcher3.FolderIcon.FolderRingAnimator; 69import com.android.launcher3.Launcher.CustomContentCallbacks; 70import com.android.launcher3.LauncherSettings.Favorites; 71import com.android.launcher3.compat.PackageInstallerCompat.PackageInstallInfo; 72import com.android.launcher3.compat.UserHandleCompat; 73 74import java.util.ArrayList; 75import java.util.HashMap; 76import java.util.HashSet; 77import java.util.Iterator; 78import java.util.Set; 79import java.util.concurrent.atomic.AtomicBoolean; 80import java.util.concurrent.atomic.AtomicInteger; 81import java.util.concurrent.atomic.AtomicReference; 82 83/** 84 * The workspace is a wide area with a wallpaper and a finite number of pages. 85 * Each page contains a number of icons, folders or widgets the user can 86 * interact with. A workspace is meant to be used with a fixed width only. 87 */ 88public class Workspace extends SmoothPagedView 89 implements DropTarget, DragSource, DragScroller, View.OnTouchListener, 90 DragController.DragListener, LauncherTransitionable, ViewGroup.OnHierarchyChangeListener, 91 Insettable { 92 private static final String TAG = "Launcher.Workspace"; 93 94 // Y rotation to apply to the workspace screens 95 private static final float WORKSPACE_OVERSCROLL_ROTATION = 24f; 96 97 private static final int CHILDREN_OUTLINE_FADE_OUT_DELAY = 0; 98 private static final int CHILDREN_OUTLINE_FADE_OUT_DURATION = 375; 99 private static final int CHILDREN_OUTLINE_FADE_IN_DURATION = 100; 100 101 protected static final int SNAP_OFF_EMPTY_SCREEN_DURATION = 400; 102 protected static final int FADE_EMPTY_SCREEN_DURATION = 150; 103 104 private static final int BACKGROUND_FADE_OUT_DURATION = 350; 105 private static final int ADJACENT_SCREEN_DROP_DURATION = 300; 106 private static final int FLING_THRESHOLD_VELOCITY = 500; 107 108 private static final float ALPHA_CUTOFF_THRESHOLD = 0.01f; 109 110 static final boolean MAP_NO_RECURSE = false; 111 static final boolean MAP_RECURSE = true; 112 113 // These animators are used to fade the children's outlines 114 private ObjectAnimator mChildrenOutlineFadeInAnimation; 115 private ObjectAnimator mChildrenOutlineFadeOutAnimation; 116 private float mChildrenOutlineAlpha = 0; 117 118 // These properties refer to the background protection gradient used for AllApps and Customize 119 private ValueAnimator mBackgroundFadeInAnimation; 120 private ValueAnimator mBackgroundFadeOutAnimation; 121 122 private static final long CUSTOM_CONTENT_GESTURE_DELAY = 200; 123 private long mTouchDownTime = -1; 124 private long mCustomContentShowTime = -1; 125 126 private LayoutTransition mLayoutTransition; 127 private final WallpaperManager mWallpaperManager; 128 private IBinder mWindowToken; 129 130 private int mOriginalDefaultPage; 131 private int mDefaultPage; 132 133 private ShortcutAndWidgetContainer mDragSourceInternal; 134 private static boolean sAccessibilityEnabled; 135 136 // The screen id used for the empty screen always present to the right. 137 final static long EXTRA_EMPTY_SCREEN_ID = -201; 138 private final static long CUSTOM_CONTENT_SCREEN_ID = -301; 139 140 private HashMap<Long, CellLayout> mWorkspaceScreens = new HashMap<Long, CellLayout>(); 141 private ArrayList<Long> mScreenOrder = new ArrayList<Long>(); 142 143 private Runnable mRemoveEmptyScreenRunnable; 144 private boolean mDeferRemoveExtraEmptyScreen = false; 145 146 /** 147 * CellInfo for the cell that is currently being dragged 148 */ 149 private CellLayout.CellInfo mDragInfo; 150 151 /** 152 * Target drop area calculated during last acceptDrop call. 153 */ 154 private int[] mTargetCell = new int[2]; 155 private int mDragOverX = -1; 156 private int mDragOverY = -1; 157 158 static Rect mLandscapeCellLayoutMetrics = null; 159 static Rect mPortraitCellLayoutMetrics = null; 160 161 CustomContentCallbacks mCustomContentCallbacks; 162 boolean mCustomContentShowing; 163 private float mLastCustomContentScrollProgress = -1f; 164 private String mCustomContentDescription = ""; 165 166 /** 167 * The CellLayout that is currently being dragged over 168 */ 169 private CellLayout mDragTargetLayout = null; 170 /** 171 * The CellLayout that we will show as glowing 172 */ 173 private CellLayout mDragOverlappingLayout = null; 174 175 /** 176 * The CellLayout which will be dropped to 177 */ 178 private CellLayout mDropToLayout = null; 179 180 private Launcher mLauncher; 181 private IconCache mIconCache; 182 private DragController mDragController; 183 184 // These are temporary variables to prevent having to allocate a new object just to 185 // return an (x, y) value from helper functions. Do NOT use them to maintain other state. 186 private int[] mTempCell = new int[2]; 187 private int[] mTempPt = new int[2]; 188 private int[] mTempEstimate = new int[2]; 189 private float[] mDragViewVisualCenter = new float[2]; 190 private float[] mTempCellLayoutCenterCoordinates = new float[2]; 191 private Matrix mTempInverseMatrix = new Matrix(); 192 193 private SpringLoadedDragController mSpringLoadedDragController; 194 private float mSpringLoadedShrinkFactor; 195 private float mOverviewModeShrinkFactor; 196 197 // State variable that indicates whether the pages are small (ie when you're 198 // in all apps or customize mode) 199 200 enum State { NORMAL, NORMAL_HIDDEN, SPRING_LOADED, OVERVIEW, OVERVIEW_HIDDEN}; 201 private State mState = State.NORMAL; 202 private boolean mIsSwitchingState = false; 203 204 boolean mAnimatingViewIntoPlace = false; 205 boolean mIsDragOccuring = false; 206 boolean mChildrenLayersEnabled = true; 207 208 private boolean mStripScreensOnPageStopMoving = false; 209 210 /** Is the user is dragging an item near the edge of a page? */ 211 private boolean mInScrollArea = false; 212 213 private HolographicOutlineHelper mOutlineHelper; 214 private Bitmap mDragOutline = null; 215 private final Rect mTempRect = new Rect(); 216 private final int[] mTempXY = new int[2]; 217 private int[] mTempVisiblePagesRange = new int[2]; 218 private boolean mOverscrollEffectSet; 219 public static final int DRAG_BITMAP_PADDING = 2; 220 private boolean mWorkspaceFadeInAdjacentScreens; 221 222 WallpaperOffsetInterpolator mWallpaperOffset; 223 private boolean mWallpaperIsLiveWallpaper; 224 private int mNumPagesForWallpaperParallax; 225 private float mLastSetWallpaperOffsetSteps = 0; 226 227 private Runnable mDelayedResizeRunnable; 228 private Runnable mDelayedSnapToPageRunnable; 229 private Point mDisplaySize = new Point(); 230 private int mCameraDistance; 231 232 // Variables relating to the creation of user folders by hovering shortcuts over shortcuts 233 private static final int FOLDER_CREATION_TIMEOUT = 0; 234 public static final int REORDER_TIMEOUT = 350; 235 private final Alarm mFolderCreationAlarm = new Alarm(); 236 private final Alarm mReorderAlarm = new Alarm(); 237 private FolderRingAnimator mDragFolderRingAnimator = null; 238 private FolderIcon mDragOverFolderIcon = null; 239 private boolean mCreateUserFolderOnDrop = false; 240 private boolean mAddToExistingFolderOnDrop = false; 241 private DropTarget.DragEnforcer mDragEnforcer; 242 private float mMaxDistanceForFolderCreation; 243 244 // Variables relating to touch disambiguation (scrolling workspace vs. scrolling a widget) 245 private float mXDown; 246 private float mYDown; 247 final static float START_DAMPING_TOUCH_SLOP_ANGLE = (float) Math.PI / 6; 248 final static float MAX_SWIPE_ANGLE = (float) Math.PI / 3; 249 final static float TOUCH_SLOP_DAMPING_FACTOR = 4; 250 251 // Relating to the animation of items being dropped externally 252 public static final int ANIMATE_INTO_POSITION_AND_DISAPPEAR = 0; 253 public static final int ANIMATE_INTO_POSITION_AND_REMAIN = 1; 254 public static final int ANIMATE_INTO_POSITION_AND_RESIZE = 2; 255 public static final int COMPLETE_TWO_STAGE_WIDGET_DROP_ANIMATION = 3; 256 public static final int CANCEL_TWO_STAGE_WIDGET_DROP_ANIMATION = 4; 257 258 // Related to dragging, folder creation and reordering 259 private static final int DRAG_MODE_NONE = 0; 260 private static final int DRAG_MODE_CREATE_FOLDER = 1; 261 private static final int DRAG_MODE_ADD_TO_FOLDER = 2; 262 private static final int DRAG_MODE_REORDER = 3; 263 private int mDragMode = DRAG_MODE_NONE; 264 private int mLastReorderX = -1; 265 private int mLastReorderY = -1; 266 267 private SparseArray<Parcelable> mSavedStates; 268 private final ArrayList<Integer> mRestoredPages = new ArrayList<Integer>(); 269 270 // These variables are used for storing the initial and final values during workspace animations 271 private int mSavedScrollX; 272 private float mSavedRotationY; 273 private float mSavedTranslationX; 274 275 private float mCurrentScale; 276 private float mNewScale; 277 private float[] mOldBackgroundAlphas; 278 private float[] mOldAlphas; 279 private float[] mNewBackgroundAlphas; 280 private float[] mNewAlphas; 281 private int mLastChildCount = -1; 282 private float mTransitionProgress; 283 284 float mOverScrollEffect = 0f; 285 286 private Runnable mDeferredAction; 287 private boolean mDeferDropAfterUninstall; 288 private boolean mUninstallSuccessful; 289 290 private final Runnable mBindPages = new Runnable() { 291 @Override 292 public void run() { 293 mLauncher.getModel().bindRemainingSynchronousPages(); 294 } 295 }; 296 297 /** 298 * Used to inflate the Workspace from XML. 299 * 300 * @param context The application's context. 301 * @param attrs The attributes set containing the Workspace's customization values. 302 */ 303 public Workspace(Context context, AttributeSet attrs) { 304 this(context, attrs, 0); 305 } 306 307 /** 308 * Used to inflate the Workspace from XML. 309 * 310 * @param context The application's context. 311 * @param attrs The attributes set containing the Workspace's customization values. 312 * @param defStyle Unused. 313 */ 314 public Workspace(Context context, AttributeSet attrs, int defStyle) { 315 super(context, attrs, defStyle); 316 mContentIsRefreshable = false; 317 318 mOutlineHelper = HolographicOutlineHelper.obtain(context); 319 320 mDragEnforcer = new DropTarget.DragEnforcer(context); 321 // With workspace, data is available straight from the get-go 322 setDataIsReady(); 323 324 mLauncher = (Launcher) context; 325 final Resources res = getResources(); 326 mWorkspaceFadeInAdjacentScreens = LauncherAppState.getInstance().getDynamicGrid(). 327 getDeviceProfile().shouldFadeAdjacentWorkspaceScreens(); 328 mFadeInAdjacentScreens = false; 329 mWallpaperManager = WallpaperManager.getInstance(context); 330 331 LauncherAppState app = LauncherAppState.getInstance(); 332 DeviceProfile grid = app.getDynamicGrid().getDeviceProfile(); 333 TypedArray a = context.obtainStyledAttributes(attrs, 334 R.styleable.Workspace, defStyle, 0); 335 mSpringLoadedShrinkFactor = 336 res.getInteger(R.integer.config_workspaceSpringLoadShrinkPercentage) / 100.0f; 337 mOverviewModeShrinkFactor = grid.getOverviewModeScale(); 338 mCameraDistance = res.getInteger(R.integer.config_cameraDistance); 339 mOriginalDefaultPage = mDefaultPage = a.getInt(R.styleable.Workspace_defaultScreen, 1); 340 a.recycle(); 341 342 setOnHierarchyChangeListener(this); 343 setHapticFeedbackEnabled(false); 344 345 initWorkspace(); 346 347 // Disable multitouch across the workspace/all apps/customize tray 348 setMotionEventSplittingEnabled(true); 349 setImportantForAccessibility(View.IMPORTANT_FOR_ACCESSIBILITY_YES); 350 } 351 352 @Override 353 public void setInsets(Rect insets) { 354 mInsets.set(insets); 355 356 CellLayout customScreen = getScreenWithId(CUSTOM_CONTENT_SCREEN_ID); 357 if (customScreen != null) { 358 View customContent = customScreen.getShortcutsAndWidgets().getChildAt(0); 359 if (customContent instanceof Insettable) { 360 ((Insettable) customContent).setInsets(mInsets); 361 } 362 } 363 } 364 365 // estimate the size of a widget with spans hSpan, vSpan. return MAX_VALUE for each 366 // dimension if unsuccessful 367 public int[] estimateItemSize(int hSpan, int vSpan, 368 ItemInfo itemInfo, boolean springLoaded) { 369 int[] size = new int[2]; 370 if (getChildCount() > 0) { 371 // Use the first non-custom page to estimate the child position 372 CellLayout cl = (CellLayout) getChildAt(numCustomPages()); 373 Rect r = estimateItemPosition(cl, itemInfo, 0, 0, hSpan, vSpan); 374 size[0] = r.width(); 375 size[1] = r.height(); 376 if (springLoaded) { 377 size[0] *= mSpringLoadedShrinkFactor; 378 size[1] *= mSpringLoadedShrinkFactor; 379 } 380 return size; 381 } else { 382 size[0] = Integer.MAX_VALUE; 383 size[1] = Integer.MAX_VALUE; 384 return size; 385 } 386 } 387 388 public Rect estimateItemPosition(CellLayout cl, ItemInfo pendingInfo, 389 int hCell, int vCell, int hSpan, int vSpan) { 390 Rect r = new Rect(); 391 cl.cellToRect(hCell, vCell, hSpan, vSpan, r); 392 return r; 393 } 394 395 public void onDragStart(final DragSource source, Object info, int dragAction) { 396 mIsDragOccuring = true; 397 updateChildrenLayersEnabled(false); 398 mLauncher.lockScreenOrientation(); 399 mLauncher.onInteractionBegin(); 400 setChildrenBackgroundAlphaMultipliers(1f); 401 // Prevent any Un/InstallShortcutReceivers from updating the db while we are dragging 402 InstallShortcutReceiver.enableInstallQueue(); 403 UninstallShortcutReceiver.enableUninstallQueue(); 404 post(new Runnable() { 405 @Override 406 public void run() { 407 if (mIsDragOccuring) { 408 mDeferRemoveExtraEmptyScreen = false; 409 addExtraEmptyScreenOnDrag(); 410 } 411 } 412 }); 413 } 414 415 416 public void deferRemoveExtraEmptyScreen() { 417 mDeferRemoveExtraEmptyScreen = true; 418 } 419 420 public void onDragEnd() { 421 if (!mDeferRemoveExtraEmptyScreen) { 422 removeExtraEmptyScreen(true, mDragSourceInternal != null); 423 } 424 425 mIsDragOccuring = false; 426 updateChildrenLayersEnabled(false); 427 mLauncher.unlockScreenOrientation(false); 428 429 // Re-enable any Un/InstallShortcutReceiver and now process any queued items 430 InstallShortcutReceiver.disableAndFlushInstallQueue(getContext()); 431 UninstallShortcutReceiver.disableAndFlushUninstallQueue(getContext()); 432 433 mDragSourceInternal = null; 434 mLauncher.onInteractionEnd(); 435 } 436 437 /** 438 * Initializes various states for this workspace. 439 */ 440 protected void initWorkspace() { 441 mCurrentPage = mDefaultPage; 442 Launcher.setScreen(mCurrentPage); 443 LauncherAppState app = LauncherAppState.getInstance(); 444 DeviceProfile grid = app.getDynamicGrid().getDeviceProfile(); 445 mIconCache = app.getIconCache(); 446 setWillNotDraw(false); 447 setClipChildren(false); 448 setClipToPadding(false); 449 setChildrenDrawnWithCacheEnabled(true); 450 451 setMinScale(mOverviewModeShrinkFactor); 452 setupLayoutTransition(); 453 454 mWallpaperOffset = new WallpaperOffsetInterpolator(); 455 Display display = mLauncher.getWindowManager().getDefaultDisplay(); 456 display.getSize(mDisplaySize); 457 458 mMaxDistanceForFolderCreation = (0.55f * grid.iconSizePx); 459 mFlingThresholdVelocity = (int) (FLING_THRESHOLD_VELOCITY * mDensity); 460 461 // Set the wallpaper dimensions when Launcher starts up 462 setWallpaperDimension(); 463 } 464 465 private void setupLayoutTransition() { 466 // We want to show layout transitions when pages are deleted, to close the gap. 467 mLayoutTransition = new LayoutTransition(); 468 mLayoutTransition.enableTransitionType(LayoutTransition.DISAPPEARING); 469 mLayoutTransition.enableTransitionType(LayoutTransition.CHANGE_DISAPPEARING); 470 mLayoutTransition.disableTransitionType(LayoutTransition.APPEARING); 471 mLayoutTransition.disableTransitionType(LayoutTransition.CHANGE_APPEARING); 472 setLayoutTransition(mLayoutTransition); 473 } 474 475 void enableLayoutTransitions() { 476 setLayoutTransition(mLayoutTransition); 477 } 478 void disableLayoutTransitions() { 479 setLayoutTransition(null); 480 } 481 482 @Override 483 protected int getScrollMode() { 484 return SmoothPagedView.X_LARGE_MODE; 485 } 486 487 @Override 488 public void onChildViewAdded(View parent, View child) { 489 if (!(child instanceof CellLayout)) { 490 throw new IllegalArgumentException("A Workspace can only have CellLayout children."); 491 } 492 CellLayout cl = ((CellLayout) child); 493 cl.setOnInterceptTouchListener(this); 494 cl.setClickable(true); 495 cl.setImportantForAccessibility(ViewCompat.IMPORTANT_FOR_ACCESSIBILITY_NO); 496 super.onChildViewAdded(parent, child); 497 } 498 499 protected boolean shouldDrawChild(View child) { 500 final CellLayout cl = (CellLayout) child; 501 return super.shouldDrawChild(child) && 502 (mIsSwitchingState || 503 cl.getShortcutsAndWidgets().getAlpha() > 0 || 504 cl.getBackgroundAlpha() > 0); 505 } 506 507 /** 508 * @return The open folder on the current screen, or null if there is none 509 */ 510 Folder getOpenFolder() { 511 DragLayer dragLayer = mLauncher.getDragLayer(); 512 int count = dragLayer.getChildCount(); 513 for (int i = 0; i < count; i++) { 514 View child = dragLayer.getChildAt(i); 515 if (child instanceof Folder) { 516 Folder folder = (Folder) child; 517 if (folder.getInfo().opened) 518 return folder; 519 } 520 } 521 return null; 522 } 523 524 boolean isTouchActive() { 525 return mTouchState != TOUCH_STATE_REST; 526 } 527 528 public void removeAllWorkspaceScreens() { 529 // Disable all layout transitions before removing all pages to ensure that we don't get the 530 // transition animations competing with us changing the scroll when we add pages or the 531 // custom content screen 532 disableLayoutTransitions(); 533 534 // Since we increment the current page when we call addCustomContentPage via bindScreens 535 // (and other places), we need to adjust the current page back when we clear the pages 536 if (hasCustomContent()) { 537 removeCustomContentPage(); 538 } 539 540 // Remove the pages and clear the screen models 541 removeAllViews(); 542 mScreenOrder.clear(); 543 mWorkspaceScreens.clear(); 544 545 // Re-enable the layout transitions 546 enableLayoutTransitions(); 547 } 548 549 public long insertNewWorkspaceScreenBeforeEmptyScreen(long screenId) { 550 // Find the index to insert this view into. If the empty screen exists, then 551 // insert it before that. 552 int insertIndex = mScreenOrder.indexOf(EXTRA_EMPTY_SCREEN_ID); 553 if (insertIndex < 0) { 554 insertIndex = mScreenOrder.size(); 555 } 556 return insertNewWorkspaceScreen(screenId, insertIndex); 557 } 558 559 public long insertNewWorkspaceScreen(long screenId) { 560 return insertNewWorkspaceScreen(screenId, getChildCount()); 561 } 562 563 public long insertNewWorkspaceScreen(long screenId, int insertIndex) { 564 // Log to disk 565 Launcher.addDumpLog(TAG, "11683562 - insertNewWorkspaceScreen(): " + screenId + 566 " at index: " + insertIndex, true); 567 568 if (mWorkspaceScreens.containsKey(screenId)) { 569 throw new RuntimeException("Screen id " + screenId + " already exists!"); 570 } 571 572 CellLayout newScreen = (CellLayout) 573 mLauncher.getLayoutInflater().inflate(R.layout.workspace_screen, null); 574 575 newScreen.setOnLongClickListener(mLongClickListener); 576 newScreen.setOnClickListener(mLauncher); 577 newScreen.setSoundEffectsEnabled(false); 578 mWorkspaceScreens.put(screenId, newScreen); 579 mScreenOrder.add(insertIndex, screenId); 580 addView(newScreen, insertIndex); 581 return screenId; 582 } 583 584 public void createCustomContentContainer() { 585 CellLayout customScreen = (CellLayout) 586 mLauncher.getLayoutInflater().inflate(R.layout.workspace_screen, null); 587 customScreen.disableBackground(); 588 customScreen.disableDragTarget(); 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 (workspaceInModalState() || !isFinishedSwitchingState()) 1072 || (!workspaceInModalState() && 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 (workspaceInModalState() || !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 != null && v.getTag() instanceof LauncherAppWidgetInfo) { 1128 LauncherAppWidgetInfo info = (LauncherAppWidgetInfo) v.getTag(); 1129 LauncherAppWidgetHostView lahv = (LauncherAppWidgetHostView) info.hostView; 1130 if (lahv != null && lahv.isReinflateRequired()) { 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 boolean onCustomContentScreen = 1163 getScreenIdForPageIndex(getCurrentPage()) == CUSTOM_CONTENT_SCREEN_ID; 1164 if (swipeInIgnoreDirection && onCustomContentScreen && passRightSwipesToCustomContent) { 1165 // Pass swipes to the right to the custom content page. 1166 return; 1167 } 1168 1169 if (onCustomContentScreen && (mCustomContentCallbacks != null) 1170 && !mCustomContentCallbacks.isScrollingAllowed()) { 1171 // Don't allow workspace scrolling if the current custom content screen doesn't allow 1172 // scrolling. 1173 return; 1174 } 1175 1176 if (theta > MAX_SWIPE_ANGLE) { 1177 // Above MAX_SWIPE_ANGLE, we don't want to ever start scrolling the workspace 1178 return; 1179 } else if (theta > START_DAMPING_TOUCH_SLOP_ANGLE) { 1180 // Above START_DAMPING_TOUCH_SLOP_ANGLE and below MAX_SWIPE_ANGLE, we want to 1181 // increase the touch slop to make it harder to begin scrolling the workspace. This 1182 // results in vertically scrolling widgets to more easily. The higher the angle, the 1183 // more we increase touch slop. 1184 theta -= START_DAMPING_TOUCH_SLOP_ANGLE; 1185 float extraRatio = (float) 1186 Math.sqrt((theta / (MAX_SWIPE_ANGLE - START_DAMPING_TOUCH_SLOP_ANGLE))); 1187 super.determineScrollingStart(ev, 1 + TOUCH_SLOP_DAMPING_FACTOR * extraRatio); 1188 } else { 1189 // Below START_DAMPING_TOUCH_SLOP_ANGLE, we don't do anything special 1190 super.determineScrollingStart(ev); 1191 } 1192 } 1193 1194 protected void onPageBeginMoving() { 1195 super.onPageBeginMoving(); 1196 1197 if (isHardwareAccelerated()) { 1198 updateChildrenLayersEnabled(false); 1199 } else { 1200 if (mNextPage != INVALID_PAGE) { 1201 // we're snapping to a particular screen 1202 enableChildrenCache(mCurrentPage, mNextPage); 1203 } else { 1204 // this is when user is actively dragging a particular screen, they might 1205 // swipe it either left or right (but we won't advance by more than one screen) 1206 enableChildrenCache(mCurrentPage - 1, mCurrentPage + 1); 1207 } 1208 } 1209 1210 // If we are not fading in adjacent screens, we still need to restore the alpha in case the 1211 // user scrolls while we are transitioning (should not affect dispatchDraw optimizations) 1212 if (!mWorkspaceFadeInAdjacentScreens) { 1213 for (int i = 0; i < getChildCount(); ++i) { 1214 ((CellLayout) getPageAt(i)).setShortcutAndWidgetAlpha(1f); 1215 } 1216 } 1217 } 1218 1219 protected void onPageEndMoving() { 1220 super.onPageEndMoving(); 1221 1222 if (isHardwareAccelerated()) { 1223 updateChildrenLayersEnabled(false); 1224 } else { 1225 clearChildrenCache(); 1226 } 1227 1228 if (mDragController.isDragging()) { 1229 if (workspaceInModalState()) { 1230 // If we are in springloaded mode, then force an event to check if the current touch 1231 // is under a new page (to scroll to) 1232 mDragController.forceTouchMove(); 1233 } 1234 } 1235 1236 if (mDelayedResizeRunnable != null) { 1237 mDelayedResizeRunnable.run(); 1238 mDelayedResizeRunnable = null; 1239 } 1240 1241 if (mDelayedSnapToPageRunnable != null) { 1242 mDelayedSnapToPageRunnable.run(); 1243 mDelayedSnapToPageRunnable = null; 1244 } 1245 if (mStripScreensOnPageStopMoving) { 1246 stripEmptyScreens(); 1247 mStripScreensOnPageStopMoving = false; 1248 } 1249 } 1250 1251 @Override 1252 protected void notifyPageSwitchListener() { 1253 super.notifyPageSwitchListener(); 1254 Launcher.setScreen(getNextPage()); 1255 1256 if (hasCustomContent() && getNextPage() == 0 && !mCustomContentShowing) { 1257 mCustomContentShowing = true; 1258 if (mCustomContentCallbacks != null) { 1259 mCustomContentCallbacks.onShow(false); 1260 mCustomContentShowTime = System.currentTimeMillis(); 1261 mLauncher.updateVoiceButtonProxyVisible(false); 1262 } 1263 } else if (hasCustomContent() && getNextPage() != 0 && mCustomContentShowing) { 1264 mCustomContentShowing = false; 1265 if (mCustomContentCallbacks != null) { 1266 mCustomContentCallbacks.onHide(); 1267 mLauncher.resetQSBScroll(); 1268 mLauncher.updateVoiceButtonProxyVisible(false); 1269 } 1270 } 1271 if (getPageIndicator() != null) { 1272 getPageIndicator().setContentDescription(getPageIndicatorDescription()); 1273 } 1274 } 1275 1276 protected CustomContentCallbacks getCustomContentCallbacks() { 1277 return mCustomContentCallbacks; 1278 } 1279 1280 protected void setWallpaperDimension() { 1281 new AsyncTask<Void, Void, Void>() { 1282 public Void doInBackground(Void ... args) { 1283 String spKey = WallpaperCropActivity.getSharedPreferencesKey(); 1284 SharedPreferences sp = 1285 mLauncher.getSharedPreferences(spKey, Context.MODE_MULTI_PROCESS); 1286 LauncherWallpaperPickerActivity.suggestWallpaperDimension(mLauncher.getResources(), 1287 sp, mLauncher.getWindowManager(), mWallpaperManager, 1288 mLauncher.overrideWallpaperDimensions()); 1289 return null; 1290 } 1291 }.executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR, (Void) null); 1292 } 1293 1294 protected void snapToPage(int whichPage, Runnable r) { 1295 snapToPage(whichPage, SLOW_PAGE_SNAP_ANIMATION_DURATION, r); 1296 } 1297 1298 protected void snapToPage(int whichPage, int duration, Runnable r) { 1299 if (mDelayedSnapToPageRunnable != null) { 1300 mDelayedSnapToPageRunnable.run(); 1301 } 1302 mDelayedSnapToPageRunnable = r; 1303 snapToPage(whichPage, duration); 1304 } 1305 1306 public void snapToScreenId(long screenId) { 1307 snapToScreenId(screenId, null); 1308 } 1309 1310 protected void snapToScreenId(long screenId, Runnable r) { 1311 snapToPage(getPageIndexForScreenId(screenId), r); 1312 } 1313 1314 class WallpaperOffsetInterpolator implements Choreographer.FrameCallback { 1315 float mFinalOffset = 0.0f; 1316 float mCurrentOffset = 0.5f; // to force an initial update 1317 boolean mWaitingForUpdate; 1318 Choreographer mChoreographer; 1319 Interpolator mInterpolator; 1320 boolean mAnimating; 1321 long mAnimationStartTime; 1322 float mAnimationStartOffset; 1323 private final int ANIMATION_DURATION = 250; 1324 // Don't use all the wallpaper for parallax until you have at least this many pages 1325 private final int MIN_PARALLAX_PAGE_SPAN = 3; 1326 int mNumScreens; 1327 1328 public WallpaperOffsetInterpolator() { 1329 mChoreographer = Choreographer.getInstance(); 1330 mInterpolator = new DecelerateInterpolator(1.5f); 1331 } 1332 1333 @Override 1334 public void doFrame(long frameTimeNanos) { 1335 updateOffset(false); 1336 } 1337 1338 private void updateOffset(boolean force) { 1339 if (mWaitingForUpdate || force) { 1340 mWaitingForUpdate = false; 1341 if (computeScrollOffset() && mWindowToken != null) { 1342 try { 1343 mWallpaperManager.setWallpaperOffsets(mWindowToken, 1344 mWallpaperOffset.getCurrX(), 0.5f); 1345 setWallpaperOffsetSteps(); 1346 } catch (IllegalArgumentException e) { 1347 Log.e(TAG, "Error updating wallpaper offset: " + e); 1348 } 1349 } 1350 } 1351 } 1352 1353 public boolean computeScrollOffset() { 1354 final float oldOffset = mCurrentOffset; 1355 if (mAnimating) { 1356 long durationSinceAnimation = System.currentTimeMillis() - mAnimationStartTime; 1357 float t0 = durationSinceAnimation / (float) ANIMATION_DURATION; 1358 float t1 = mInterpolator.getInterpolation(t0); 1359 mCurrentOffset = mAnimationStartOffset + 1360 (mFinalOffset - mAnimationStartOffset) * t1; 1361 mAnimating = durationSinceAnimation < ANIMATION_DURATION; 1362 } else { 1363 mCurrentOffset = mFinalOffset; 1364 } 1365 1366 if (Math.abs(mCurrentOffset - mFinalOffset) > 0.0000001f) { 1367 scheduleUpdate(); 1368 } 1369 if (Math.abs(oldOffset - mCurrentOffset) > 0.0000001f) { 1370 return true; 1371 } 1372 return false; 1373 } 1374 1375 private float wallpaperOffsetForCurrentScroll() { 1376 if (getChildCount() <= 1) { 1377 return 0; 1378 } 1379 1380 // Exclude the leftmost page 1381 int emptyExtraPages = numEmptyScreensToIgnore(); 1382 int firstIndex = numCustomPages(); 1383 // Exclude the last extra empty screen (if we have > MIN_PARALLAX_PAGE_SPAN pages) 1384 int lastIndex = getChildCount() - 1 - emptyExtraPages; 1385 if (isLayoutRtl()) { 1386 int temp = firstIndex; 1387 firstIndex = lastIndex; 1388 lastIndex = temp; 1389 } 1390 1391 int firstPageScrollX = getScrollForPage(firstIndex); 1392 int scrollRange = getScrollForPage(lastIndex) - firstPageScrollX; 1393 if (scrollRange == 0) { 1394 return 0; 1395 } else { 1396 // TODO: do different behavior if it's a live wallpaper? 1397 // Sometimes the left parameter of the pages is animated during a layout transition; 1398 // this parameter offsets it to keep the wallpaper from animating as well 1399 int adjustedScroll = 1400 getScrollX() - firstPageScrollX - getLayoutTransitionOffsetForPage(0); 1401 float offset = Math.min(1, adjustedScroll / (float) scrollRange); 1402 offset = Math.max(0, offset); 1403 // Don't use up all the wallpaper parallax until you have at least 1404 // MIN_PARALLAX_PAGE_SPAN pages 1405 int numScrollingPages = getNumScreensExcludingEmptyAndCustom(); 1406 int parallaxPageSpan; 1407 if (mWallpaperIsLiveWallpaper) { 1408 parallaxPageSpan = numScrollingPages - 1; 1409 } else { 1410 parallaxPageSpan = Math.max(MIN_PARALLAX_PAGE_SPAN, numScrollingPages - 1); 1411 } 1412 mNumPagesForWallpaperParallax = parallaxPageSpan; 1413 1414 // On RTL devices, push the wallpaper offset to the right if we don't have enough 1415 // pages (ie if numScrollingPages < MIN_PARALLAX_PAGE_SPAN) 1416 int padding = isLayoutRtl() ? parallaxPageSpan - numScrollingPages + 1 : 0; 1417 return offset * (padding + numScrollingPages - 1) / parallaxPageSpan; 1418 } 1419 } 1420 1421 private int numEmptyScreensToIgnore() { 1422 int numScrollingPages = getChildCount() - numCustomPages(); 1423 if (numScrollingPages >= MIN_PARALLAX_PAGE_SPAN && hasExtraEmptyScreen()) { 1424 return 1; 1425 } else { 1426 return 0; 1427 } 1428 } 1429 1430 private int getNumScreensExcludingEmptyAndCustom() { 1431 int numScrollingPages = getChildCount() - numEmptyScreensToIgnore() - numCustomPages(); 1432 return numScrollingPages; 1433 } 1434 1435 public void syncWithScroll() { 1436 float offset = wallpaperOffsetForCurrentScroll(); 1437 mWallpaperOffset.setFinalX(offset); 1438 updateOffset(true); 1439 } 1440 1441 public float getCurrX() { 1442 return mCurrentOffset; 1443 } 1444 1445 public float getFinalX() { 1446 return mFinalOffset; 1447 } 1448 1449 private void animateToFinal() { 1450 mAnimating = true; 1451 mAnimationStartOffset = mCurrentOffset; 1452 mAnimationStartTime = System.currentTimeMillis(); 1453 } 1454 1455 private void setWallpaperOffsetSteps() { 1456 // Set wallpaper offset steps (1 / (number of screens - 1)) 1457 float xOffset = 1.0f / mNumPagesForWallpaperParallax; 1458 if (xOffset != mLastSetWallpaperOffsetSteps) { 1459 mWallpaperManager.setWallpaperOffsetSteps(xOffset, 1.0f); 1460 mLastSetWallpaperOffsetSteps = xOffset; 1461 } 1462 } 1463 1464 public void setFinalX(float x) { 1465 scheduleUpdate(); 1466 mFinalOffset = Math.max(0f, Math.min(x, 1.0f)); 1467 if (getNumScreensExcludingEmptyAndCustom() != mNumScreens) { 1468 if (mNumScreens > 0) { 1469 // Don't animate if we're going from 0 screens 1470 animateToFinal(); 1471 } 1472 mNumScreens = getNumScreensExcludingEmptyAndCustom(); 1473 } 1474 } 1475 1476 private void scheduleUpdate() { 1477 if (!mWaitingForUpdate) { 1478 mChoreographer.postFrameCallback(this); 1479 mWaitingForUpdate = true; 1480 } 1481 } 1482 1483 public void jumpToFinal() { 1484 mCurrentOffset = mFinalOffset; 1485 } 1486 } 1487 1488 @Override 1489 public void computeScroll() { 1490 super.computeScroll(); 1491 mWallpaperOffset.syncWithScroll(); 1492 } 1493 1494 @Override 1495 public void announceForAccessibility(CharSequence text) { 1496 // Don't announce if apps is on top of us. 1497 if (!mLauncher.isAllAppsVisible()) { 1498 super.announceForAccessibility(text); 1499 } 1500 } 1501 1502 void showOutlines() { 1503 if (!workspaceInModalState() && !mIsSwitchingState) { 1504 if (mChildrenOutlineFadeOutAnimation != null) mChildrenOutlineFadeOutAnimation.cancel(); 1505 if (mChildrenOutlineFadeInAnimation != null) mChildrenOutlineFadeInAnimation.cancel(); 1506 mChildrenOutlineFadeInAnimation = LauncherAnimUtils.ofFloat(this, "childrenOutlineAlpha", 1.0f); 1507 mChildrenOutlineFadeInAnimation.setDuration(CHILDREN_OUTLINE_FADE_IN_DURATION); 1508 mChildrenOutlineFadeInAnimation.start(); 1509 } 1510 } 1511 1512 void hideOutlines() { 1513 if (!workspaceInModalState() && !mIsSwitchingState) { 1514 if (mChildrenOutlineFadeInAnimation != null) mChildrenOutlineFadeInAnimation.cancel(); 1515 if (mChildrenOutlineFadeOutAnimation != null) mChildrenOutlineFadeOutAnimation.cancel(); 1516 mChildrenOutlineFadeOutAnimation = LauncherAnimUtils.ofFloat(this, "childrenOutlineAlpha", 0.0f); 1517 mChildrenOutlineFadeOutAnimation.setDuration(CHILDREN_OUTLINE_FADE_OUT_DURATION); 1518 mChildrenOutlineFadeOutAnimation.setStartDelay(CHILDREN_OUTLINE_FADE_OUT_DELAY); 1519 mChildrenOutlineFadeOutAnimation.start(); 1520 } 1521 } 1522 1523 public void showOutlinesTemporarily() { 1524 if (!mIsPageMoving && !isTouchActive()) { 1525 snapToPage(mCurrentPage); 1526 } 1527 } 1528 1529 public void setChildrenOutlineAlpha(float alpha) { 1530 mChildrenOutlineAlpha = alpha; 1531 for (int i = 0; i < getChildCount(); i++) { 1532 CellLayout cl = (CellLayout) getChildAt(i); 1533 cl.setBackgroundAlpha(alpha); 1534 } 1535 } 1536 1537 public float getChildrenOutlineAlpha() { 1538 return mChildrenOutlineAlpha; 1539 } 1540 1541 private void animateBackgroundGradient(float finalAlpha, boolean animated) { 1542 final DragLayer dragLayer = mLauncher.getDragLayer(); 1543 1544 if (mBackgroundFadeInAnimation != null) { 1545 mBackgroundFadeInAnimation.cancel(); 1546 mBackgroundFadeInAnimation = null; 1547 } 1548 if (mBackgroundFadeOutAnimation != null) { 1549 mBackgroundFadeOutAnimation.cancel(); 1550 mBackgroundFadeOutAnimation = null; 1551 } 1552 float startAlpha = dragLayer.getBackgroundAlpha(); 1553 if (finalAlpha != startAlpha) { 1554 if (animated) { 1555 mBackgroundFadeOutAnimation = 1556 LauncherAnimUtils.ofFloat(this, startAlpha, finalAlpha); 1557 mBackgroundFadeOutAnimation.addUpdateListener(new AnimatorUpdateListener() { 1558 public void onAnimationUpdate(ValueAnimator animation) { 1559 dragLayer.setBackgroundAlpha( 1560 ((Float)animation.getAnimatedValue()).floatValue()); 1561 } 1562 }); 1563 mBackgroundFadeOutAnimation.setInterpolator(new DecelerateInterpolator(1.5f)); 1564 mBackgroundFadeOutAnimation.setDuration(BACKGROUND_FADE_OUT_DURATION); 1565 mBackgroundFadeOutAnimation.start(); 1566 } else { 1567 dragLayer.setBackgroundAlpha(finalAlpha); 1568 } 1569 } 1570 } 1571 1572 float backgroundAlphaInterpolator(float r) { 1573 float pivotA = 0.1f; 1574 float pivotB = 0.4f; 1575 if (r < pivotA) { 1576 return 0; 1577 } else if (r > pivotB) { 1578 return 1.0f; 1579 } else { 1580 return (r - pivotA)/(pivotB - pivotA); 1581 } 1582 } 1583 1584 private void updatePageAlphaValues(int screenCenter) { 1585 boolean isInOverscroll = mOverScrollX < 0 || mOverScrollX > mMaxScrollX; 1586 if (mWorkspaceFadeInAdjacentScreens && 1587 !workspaceInModalState() && 1588 !mIsSwitchingState && 1589 !isInOverscroll) { 1590 for (int i = numCustomPages(); i < getChildCount(); i++) { 1591 CellLayout child = (CellLayout) getChildAt(i); 1592 if (child != null) { 1593 float scrollProgress = getScrollProgress(screenCenter, child, i); 1594 float alpha = 1 - Math.abs(scrollProgress); 1595 child.getShortcutsAndWidgets().setAlpha(alpha); 1596 //child.setBackgroundAlphaMultiplier(1 - alpha); 1597 } 1598 } 1599 } 1600 } 1601 1602 private void setChildrenBackgroundAlphaMultipliers(float a) { 1603 for (int i = 0; i < getChildCount(); i++) { 1604 CellLayout child = (CellLayout) getChildAt(i); 1605 child.setBackgroundAlphaMultiplier(a); 1606 } 1607 } 1608 1609 public boolean hasCustomContent() { 1610 return (mScreenOrder.size() > 0 && mScreenOrder.get(0) == CUSTOM_CONTENT_SCREEN_ID); 1611 } 1612 1613 public int numCustomPages() { 1614 return hasCustomContent() ? 1 : 0; 1615 } 1616 1617 public boolean isOnOrMovingToCustomContent() { 1618 return hasCustomContent() && getNextPage() == 0; 1619 } 1620 1621 private void updateStateForCustomContent(int screenCenter) { 1622 float translationX = 0; 1623 float progress = 0; 1624 if (hasCustomContent()) { 1625 int index = mScreenOrder.indexOf(CUSTOM_CONTENT_SCREEN_ID); 1626 1627 int scrollDelta = getScrollX() - getScrollForPage(index) - 1628 getLayoutTransitionOffsetForPage(index); 1629 float scrollRange = getScrollForPage(index + 1) - getScrollForPage(index); 1630 translationX = scrollRange - scrollDelta; 1631 progress = (scrollRange - scrollDelta) / scrollRange; 1632 1633 if (isLayoutRtl()) { 1634 translationX = Math.min(0, translationX); 1635 } else { 1636 translationX = Math.max(0, translationX); 1637 } 1638 progress = Math.max(0, progress); 1639 } 1640 1641 if (Float.compare(progress, mLastCustomContentScrollProgress) == 0) return; 1642 1643 CellLayout cc = mWorkspaceScreens.get(CUSTOM_CONTENT_SCREEN_ID); 1644 if (progress > 0 && cc.getVisibility() != VISIBLE && !workspaceInModalState()) { 1645 cc.setVisibility(VISIBLE); 1646 } 1647 1648 mLastCustomContentScrollProgress = progress; 1649 1650 mLauncher.getDragLayer().setBackgroundAlpha(progress * 0.8f); 1651 1652 if (mLauncher.getHotseat() != null) { 1653 mLauncher.getHotseat().setTranslationX(translationX); 1654 } 1655 1656 if (getPageIndicator() != null) { 1657 getPageIndicator().setTranslationX(translationX); 1658 } 1659 1660 if (mCustomContentCallbacks != null) { 1661 mCustomContentCallbacks.onScrollProgressChanged(progress); 1662 } 1663 } 1664 1665 @Override 1666 protected OnClickListener getPageIndicatorClickListener() { 1667 AccessibilityManager am = (AccessibilityManager) 1668 getContext().getSystemService(Context.ACCESSIBILITY_SERVICE); 1669 if (!am.isTouchExplorationEnabled()) { 1670 return null; 1671 } 1672 OnClickListener listener = new OnClickListener() { 1673 @Override 1674 public void onClick(View arg0) { 1675 enterOverviewMode(); 1676 } 1677 }; 1678 return listener; 1679 } 1680 1681 @Override 1682 protected void screenScrolled(int screenCenter) { 1683 final boolean isRtl = isLayoutRtl(); 1684 super.screenScrolled(screenCenter); 1685 1686 updatePageAlphaValues(screenCenter); 1687 updateStateForCustomContent(screenCenter); 1688 enableHwLayersOnVisiblePages(); 1689 1690 boolean shouldOverScroll = mOverScrollX < 0 || mOverScrollX > mMaxScrollX; 1691 1692 if (shouldOverScroll) { 1693 int index = 0; 1694 final int lowerIndex = 0; 1695 final int upperIndex = getChildCount() - 1; 1696 1697 final boolean isLeftPage = mOverScrollX < 0; 1698 index = (!isRtl && isLeftPage) || (isRtl && !isLeftPage) ? lowerIndex : upperIndex; 1699 1700 CellLayout cl = (CellLayout) getChildAt(index); 1701 float effect = Math.abs(mOverScrollEffect); 1702 cl.setOverScrollAmount(Math.abs(effect), isLeftPage); 1703 1704 mOverscrollEffectSet = true; 1705 } else { 1706 if (mOverscrollEffectSet && getChildCount() > 0) { 1707 mOverscrollEffectSet = false; 1708 ((CellLayout) getChildAt(0)).setOverScrollAmount(0, false); 1709 ((CellLayout) getChildAt(getChildCount() - 1)).setOverScrollAmount(0, false); 1710 } 1711 } 1712 } 1713 1714 @Override 1715 protected void overScroll(float amount) { 1716 boolean shouldOverScroll = (amount < 0 && (!hasCustomContent() || isLayoutRtl())) || 1717 (amount > 0 && (!hasCustomContent() || !isLayoutRtl())); 1718 if (shouldOverScroll) { 1719 dampedOverScroll(amount); 1720 mOverScrollEffect = acceleratedOverFactor(amount); 1721 } else { 1722 mOverScrollEffect = 0; 1723 } 1724 } 1725 1726 protected void onAttachedToWindow() { 1727 super.onAttachedToWindow(); 1728 mWindowToken = getWindowToken(); 1729 computeScroll(); 1730 mDragController.setWindowToken(mWindowToken); 1731 } 1732 1733 protected void onDetachedFromWindow() { 1734 super.onDetachedFromWindow(); 1735 mWindowToken = null; 1736 } 1737 1738 protected void onResume() { 1739 if (getPageIndicator() != null) { 1740 // In case accessibility state has changed, we need to perform this on every 1741 // attach to window 1742 OnClickListener listener = getPageIndicatorClickListener(); 1743 if (listener != null) { 1744 getPageIndicator().setOnClickListener(listener); 1745 } 1746 } 1747 AccessibilityManager am = (AccessibilityManager) 1748 getContext().getSystemService(Context.ACCESSIBILITY_SERVICE); 1749 sAccessibilityEnabled = am.isEnabled(); 1750 1751 // Update wallpaper dimensions if they were changed since last onResume 1752 // (we also always set the wallpaper dimensions in the constructor) 1753 if (LauncherAppState.getInstance().hasWallpaperChangedSinceLastCheck()) { 1754 setWallpaperDimension(); 1755 } 1756 mWallpaperIsLiveWallpaper = mWallpaperManager.getWallpaperInfo() != null; 1757 // Force the wallpaper offset steps to be set again, because another app might have changed 1758 // them 1759 mLastSetWallpaperOffsetSteps = 0f; 1760 } 1761 1762 @Override 1763 protected void onLayout(boolean changed, int left, int top, int right, int bottom) { 1764 if (mFirstLayout && mCurrentPage >= 0 && mCurrentPage < getChildCount()) { 1765 mWallpaperOffset.syncWithScroll(); 1766 mWallpaperOffset.jumpToFinal(); 1767 } 1768 super.onLayout(changed, left, top, right, bottom); 1769 } 1770 1771 @Override 1772 protected void onDraw(Canvas canvas) { 1773 super.onDraw(canvas); 1774 1775 // Call back to LauncherModel to finish binding after the first draw 1776 post(mBindPages); 1777 } 1778 1779 @Override 1780 protected boolean onRequestFocusInDescendants(int direction, Rect previouslyFocusedRect) { 1781 if (!mLauncher.isAllAppsVisible()) { 1782 final Folder openFolder = getOpenFolder(); 1783 if (openFolder != null) { 1784 return openFolder.requestFocus(direction, previouslyFocusedRect); 1785 } else { 1786 return super.onRequestFocusInDescendants(direction, previouslyFocusedRect); 1787 } 1788 } 1789 return false; 1790 } 1791 1792 @Override 1793 public int getDescendantFocusability() { 1794 if (workspaceInModalState()) { 1795 return ViewGroup.FOCUS_BLOCK_DESCENDANTS; 1796 } 1797 return super.getDescendantFocusability(); 1798 } 1799 1800 @Override 1801 public void addFocusables(ArrayList<View> views, int direction, int focusableMode) { 1802 if (!mLauncher.isAllAppsVisible()) { 1803 final Folder openFolder = getOpenFolder(); 1804 if (openFolder != null) { 1805 openFolder.addFocusables(views, direction); 1806 } else { 1807 super.addFocusables(views, direction, focusableMode); 1808 } 1809 } 1810 } 1811 1812 public boolean workspaceInModalState() { 1813 return mState != State.NORMAL; 1814 } 1815 1816 void enableChildrenCache(int fromPage, int toPage) { 1817 if (fromPage > toPage) { 1818 final int temp = fromPage; 1819 fromPage = toPage; 1820 toPage = temp; 1821 } 1822 1823 final int screenCount = getChildCount(); 1824 1825 fromPage = Math.max(fromPage, 0); 1826 toPage = Math.min(toPage, screenCount - 1); 1827 1828 for (int i = fromPage; i <= toPage; i++) { 1829 final CellLayout layout = (CellLayout) getChildAt(i); 1830 layout.setChildrenDrawnWithCacheEnabled(true); 1831 layout.setChildrenDrawingCacheEnabled(true); 1832 } 1833 } 1834 1835 void clearChildrenCache() { 1836 final int screenCount = getChildCount(); 1837 for (int i = 0; i < screenCount; i++) { 1838 final CellLayout layout = (CellLayout) getChildAt(i); 1839 layout.setChildrenDrawnWithCacheEnabled(false); 1840 // In software mode, we don't want the items to continue to be drawn into bitmaps 1841 if (!isHardwareAccelerated()) { 1842 layout.setChildrenDrawingCacheEnabled(false); 1843 } 1844 } 1845 } 1846 1847 private void updateChildrenLayersEnabled(boolean force) { 1848 boolean small = mState == State.OVERVIEW || mIsSwitchingState; 1849 boolean enableChildrenLayers = force || small || mAnimatingViewIntoPlace || isPageMoving(); 1850 1851 if (enableChildrenLayers != mChildrenLayersEnabled) { 1852 mChildrenLayersEnabled = enableChildrenLayers; 1853 if (mChildrenLayersEnabled) { 1854 enableHwLayersOnVisiblePages(); 1855 } else { 1856 for (int i = 0; i < getPageCount(); i++) { 1857 final CellLayout cl = (CellLayout) getChildAt(i); 1858 cl.enableHardwareLayer(false); 1859 } 1860 } 1861 } 1862 } 1863 1864 private void enableHwLayersOnVisiblePages() { 1865 if (mChildrenLayersEnabled) { 1866 final int screenCount = getChildCount(); 1867 getVisiblePages(mTempVisiblePagesRange); 1868 int leftScreen = mTempVisiblePagesRange[0]; 1869 int rightScreen = mTempVisiblePagesRange[1]; 1870 if (leftScreen == rightScreen) { 1871 // make sure we're caching at least two pages always 1872 if (rightScreen < screenCount - 1) { 1873 rightScreen++; 1874 } else if (leftScreen > 0) { 1875 leftScreen--; 1876 } 1877 } 1878 1879 final CellLayout customScreen = mWorkspaceScreens.get(CUSTOM_CONTENT_SCREEN_ID); 1880 for (int i = 0; i < screenCount; i++) { 1881 final CellLayout layout = (CellLayout) getPageAt(i); 1882 1883 // enable layers between left and right screen inclusive, except for the 1884 // customScreen, which may animate its content during transitions. 1885 boolean enableLayer = layout != customScreen && 1886 leftScreen <= i && i <= rightScreen && shouldDrawChild(layout); 1887 layout.enableHardwareLayer(enableLayer); 1888 } 1889 } 1890 } 1891 1892 public void buildPageHardwareLayers() { 1893 // force layers to be enabled just for the call to buildLayer 1894 updateChildrenLayersEnabled(true); 1895 if (getWindowToken() != null) { 1896 final int childCount = getChildCount(); 1897 for (int i = 0; i < childCount; i++) { 1898 CellLayout cl = (CellLayout) getChildAt(i); 1899 cl.buildHardwareLayer(); 1900 } 1901 } 1902 updateChildrenLayersEnabled(false); 1903 } 1904 1905 protected void onWallpaperTap(MotionEvent ev) { 1906 final int[] position = mTempCell; 1907 getLocationOnScreen(position); 1908 1909 int pointerIndex = ev.getActionIndex(); 1910 position[0] += (int) ev.getX(pointerIndex); 1911 position[1] += (int) ev.getY(pointerIndex); 1912 1913 mWallpaperManager.sendWallpaperCommand(getWindowToken(), 1914 ev.getAction() == MotionEvent.ACTION_UP 1915 ? WallpaperManager.COMMAND_TAP : WallpaperManager.COMMAND_SECONDARY_TAP, 1916 position[0], position[1], 0, null); 1917 } 1918 1919 /* 1920 * This interpolator emulates the rate at which the perceived scale of an object changes 1921 * as its distance from a camera increases. When this interpolator is applied to a scale 1922 * animation on a view, it evokes the sense that the object is shrinking due to moving away 1923 * from the camera. 1924 */ 1925 static class ZInterpolator implements TimeInterpolator { 1926 private float focalLength; 1927 1928 public ZInterpolator(float foc) { 1929 focalLength = foc; 1930 } 1931 1932 public float getInterpolation(float input) { 1933 return (1.0f - focalLength / (focalLength + input)) / 1934 (1.0f - focalLength / (focalLength + 1.0f)); 1935 } 1936 } 1937 1938 /* 1939 * The exact reverse of ZInterpolator. 1940 */ 1941 static class InverseZInterpolator implements TimeInterpolator { 1942 private ZInterpolator zInterpolator; 1943 public InverseZInterpolator(float foc) { 1944 zInterpolator = new ZInterpolator(foc); 1945 } 1946 public float getInterpolation(float input) { 1947 return 1 - zInterpolator.getInterpolation(1 - input); 1948 } 1949 } 1950 1951 /* 1952 * ZInterpolator compounded with an ease-out. 1953 */ 1954 static class ZoomOutInterpolator implements TimeInterpolator { 1955 private final DecelerateInterpolator decelerate = new DecelerateInterpolator(0.75f); 1956 private final ZInterpolator zInterpolator = new ZInterpolator(0.13f); 1957 1958 public float getInterpolation(float input) { 1959 return decelerate.getInterpolation(zInterpolator.getInterpolation(input)); 1960 } 1961 } 1962 1963 /* 1964 * InvereZInterpolator compounded with an ease-out. 1965 */ 1966 static class ZoomInInterpolator implements TimeInterpolator { 1967 private final InverseZInterpolator inverseZInterpolator = new InverseZInterpolator(0.35f); 1968 private final DecelerateInterpolator decelerate = new DecelerateInterpolator(3.0f); 1969 1970 public float getInterpolation(float input) { 1971 return decelerate.getInterpolation(inverseZInterpolator.getInterpolation(input)); 1972 } 1973 } 1974 1975 private final ZoomInInterpolator mZoomInInterpolator = new ZoomInInterpolator(); 1976 1977 /* 1978 * 1979 * We call these methods (onDragStartedWithItemSpans/onDragStartedWithSize) whenever we 1980 * start a drag in Launcher, regardless of whether the drag has ever entered the Workspace 1981 * 1982 * These methods mark the appropriate pages as accepting drops (which alters their visual 1983 * appearance). 1984 * 1985 */ 1986 public void onDragStartedWithItem(View v) { 1987 final Canvas canvas = new Canvas(); 1988 1989 // The outline is used to visualize where the item will land if dropped 1990 mDragOutline = createDragOutline(v, canvas, DRAG_BITMAP_PADDING); 1991 } 1992 1993 private Rect getDrawableBounds(Drawable d) { 1994 Rect bounds = new Rect(); 1995 d.copyBounds(bounds); 1996 if (bounds.width() == 0 || bounds.height() == 0) { 1997 bounds.set(0, 0, d.getIntrinsicWidth(), d.getIntrinsicHeight()); 1998 } else { 1999 bounds.offsetTo(0, 0); 2000 } 2001 if (d instanceof PreloadIconDrawable) { 2002 int inset = -((PreloadIconDrawable) d).getOutset(); 2003 bounds.inset(inset, inset); 2004 } 2005 return bounds; 2006 } 2007 2008 public void onExternalDragStartedWithItem(View v) { 2009 final Canvas canvas = new Canvas(); 2010 2011 // Compose a drag bitmap with the view scaled to the icon size 2012 LauncherAppState app = LauncherAppState.getInstance(); 2013 DeviceProfile grid = app.getDynamicGrid().getDeviceProfile(); 2014 int iconSize = grid.iconSizePx; 2015 int bmpWidth = v.getMeasuredWidth(); 2016 int bmpHeight = v.getMeasuredHeight(); 2017 2018 // If this is a text view, use its drawable instead 2019 if (v instanceof TextView) { 2020 TextView tv = (TextView) v; 2021 Drawable d = tv.getCompoundDrawables()[1]; 2022 Rect bounds = getDrawableBounds(d); 2023 bmpWidth = bounds.width(); 2024 bmpHeight = bounds.height(); 2025 } 2026 2027 // Compose the bitmap to create the icon from 2028 Bitmap b = Bitmap.createBitmap(bmpWidth, bmpHeight, 2029 Bitmap.Config.ARGB_8888); 2030 Canvas c = new Canvas(b); 2031 drawDragView(v, c, 0); 2032 c.setBitmap(null); 2033 2034 // The outline is used to visualize where the item will land if dropped 2035 mDragOutline = createDragOutline(b, canvas, DRAG_BITMAP_PADDING, iconSize, iconSize, true); 2036 } 2037 2038 public void onDragStartedWithItem(PendingAddItemInfo info, Bitmap b, boolean clipAlpha) { 2039 final Canvas canvas = new Canvas(); 2040 2041 int[] size = estimateItemSize(info.spanX, info.spanY, info, false); 2042 2043 // The outline is used to visualize where the item will land if dropped 2044 mDragOutline = createDragOutline(b, canvas, DRAG_BITMAP_PADDING, size[0], 2045 size[1], clipAlpha); 2046 } 2047 2048 public void exitWidgetResizeMode() { 2049 DragLayer dragLayer = mLauncher.getDragLayer(); 2050 dragLayer.clearAllResizeFrames(); 2051 } 2052 2053 private void initAnimationArrays() { 2054 final int childCount = getChildCount(); 2055 if (mLastChildCount == childCount) return; 2056 2057 mOldBackgroundAlphas = new float[childCount]; 2058 mOldAlphas = new float[childCount]; 2059 mNewBackgroundAlphas = new float[childCount]; 2060 mNewAlphas = new float[childCount]; 2061 } 2062 2063 Animator getChangeStateAnimation(final State state, boolean animated) { 2064 return getChangeStateAnimation(state, animated, 0, -1); 2065 } 2066 2067 @Override 2068 protected void getFreeScrollPageRange(int[] range) { 2069 getOverviewModePages(range); 2070 } 2071 2072 private void getOverviewModePages(int[] range) { 2073 int start = numCustomPages(); 2074 int end = getChildCount() - 1; 2075 2076 range[0] = Math.max(0, Math.min(start, getChildCount() - 1)); 2077 range[1] = Math.max(0, end); 2078 } 2079 2080 protected void onStartReordering() { 2081 super.onStartReordering(); 2082 showOutlines(); 2083 // Reordering handles its own animations, disable the automatic ones. 2084 disableLayoutTransitions(); 2085 } 2086 2087 protected void onEndReordering() { 2088 super.onEndReordering(); 2089 2090 if (mLauncher.isWorkspaceLoading()) { 2091 // Invalid and dangerous operation if workspace is loading 2092 return; 2093 } 2094 2095 hideOutlines(); 2096 mScreenOrder.clear(); 2097 int count = getChildCount(); 2098 for (int i = 0; i < count; i++) { 2099 CellLayout cl = ((CellLayout) getChildAt(i)); 2100 mScreenOrder.add(getIdForScreen(cl)); 2101 } 2102 2103 mLauncher.getModel().updateWorkspaceScreenOrder(mLauncher, mScreenOrder); 2104 2105 // Re-enable auto layout transitions for page deletion. 2106 enableLayoutTransitions(); 2107 } 2108 2109 public boolean isInOverviewMode() { 2110 return mState == State.OVERVIEW; 2111 } 2112 2113 public boolean enterOverviewMode() { 2114 if (mTouchState != TOUCH_STATE_REST) { 2115 return false; 2116 } 2117 enableOverviewMode(true, -1, true); 2118 return true; 2119 } 2120 2121 public void exitOverviewMode(boolean animated) { 2122 exitOverviewMode(-1, animated); 2123 } 2124 2125 public void exitOverviewMode(int snapPage, boolean animated) { 2126 enableOverviewMode(false, snapPage, animated); 2127 } 2128 2129 private void enableOverviewMode(boolean enable, int snapPage, boolean animated) { 2130 State finalState = Workspace.State.OVERVIEW; 2131 if (!enable) { 2132 finalState = Workspace.State.NORMAL; 2133 } 2134 2135 Animator workspaceAnim = getChangeStateAnimation(finalState, animated, 0, snapPage); 2136 if (workspaceAnim != null) { 2137 onTransitionPrepare(); 2138 workspaceAnim.addListener(new AnimatorListenerAdapter() { 2139 @Override 2140 public void onAnimationEnd(Animator arg0) { 2141 onTransitionEnd(); 2142 } 2143 }); 2144 workspaceAnim.start(); 2145 } 2146 } 2147 2148 int getOverviewModeTranslationY() { 2149 LauncherAppState app = LauncherAppState.getInstance(); 2150 DeviceProfile grid = app.getDynamicGrid().getDeviceProfile(); 2151 Rect overviewBar = grid.getOverviewModeButtonBarRect(); 2152 2153 int availableHeight = getViewportHeight(); 2154 int scaledHeight = (int) (mOverviewModeShrinkFactor * getNormalChildHeight()); 2155 int offsetFromTopEdge = (availableHeight - scaledHeight) / 2; 2156 int offsetToCenterInOverview = (availableHeight - mInsets.top - overviewBar.height() 2157 - scaledHeight) / 2; 2158 2159 return -offsetFromTopEdge + mInsets.top + offsetToCenterInOverview; 2160 } 2161 2162 boolean shouldVoiceButtonProxyBeVisible() { 2163 if (isOnOrMovingToCustomContent()) { 2164 return false; 2165 } 2166 if (mState != State.NORMAL) { 2167 return false; 2168 } 2169 return true; 2170 } 2171 2172 public void updateInteractionForState() { 2173 if (mState != State.NORMAL) { 2174 mLauncher.onInteractionBegin(); 2175 } else { 2176 mLauncher.onInteractionEnd(); 2177 } 2178 } 2179 2180 private void setState(State state) { 2181 mState = state; 2182 updateInteractionForState(); 2183 updateAccessibilityFlags(); 2184 } 2185 2186 State getState() { 2187 return mState; 2188 } 2189 2190 private void updateAccessibilityFlags() { 2191 int accessible = mState == State.NORMAL ? 2192 ViewCompat.IMPORTANT_FOR_ACCESSIBILITY_YES : 2193 ViewCompat.IMPORTANT_FOR_ACCESSIBILITY_NO_HIDE_DESCENDANTS; 2194 setImportantForAccessibility(accessible); 2195 } 2196 2197 private static final int HIDE_WORKSPACE_DURATION = 100; 2198 2199 Animator getChangeStateAnimation(final State state, boolean animated, int delay, int snapPage) { 2200 if (mState == state) { 2201 return null; 2202 } 2203 2204 // Initialize animation arrays for the first time if necessary 2205 initAnimationArrays(); 2206 2207 AnimatorSet anim = animated ? LauncherAnimUtils.createAnimatorSet() : null; 2208 2209 final State oldState = mState; 2210 final boolean oldStateIsNormal = (oldState == State.NORMAL); 2211 final boolean oldStateIsSpringLoaded = (oldState == State.SPRING_LOADED); 2212 final boolean oldStateIsNormalHidden = (oldState == State.NORMAL_HIDDEN); 2213 final boolean oldStateIsOverviewHidden = (oldState == State.OVERVIEW_HIDDEN); 2214 final boolean oldStateIsOverview = (oldState == State.OVERVIEW); 2215 setState(state); 2216 final boolean stateIsNormal = (state == State.NORMAL); 2217 final boolean stateIsSpringLoaded = (state == State.SPRING_LOADED); 2218 final boolean stateIsNormalHidden = (state == State.NORMAL_HIDDEN); 2219 final boolean stateIsOverviewHidden = (state == State.OVERVIEW_HIDDEN); 2220 final boolean stateIsOverview = (state == State.OVERVIEW); 2221 float finalBackgroundAlpha = (stateIsSpringLoaded || stateIsOverview) ? 1.0f : 0f; 2222 float finalHotseatAndPageIndicatorAlpha = (stateIsNormal || stateIsSpringLoaded) ? 1f : 0f; 2223 float finalOverviewPanelAlpha = stateIsOverview ? 1f : 0f; 2224 float finalSearchBarAlpha = !stateIsNormal ? 0f : 1f; 2225 float finalWorkspaceTranslationY = stateIsOverview || stateIsOverviewHidden ? 2226 getOverviewModeTranslationY() : 0; 2227 2228 boolean workspaceToAllApps = (oldStateIsNormal && stateIsNormalHidden); 2229 boolean overviewToAllApps = (oldStateIsOverview && stateIsOverviewHidden); 2230 boolean allAppsToWorkspace = (stateIsNormalHidden && stateIsNormal); 2231 boolean workspaceToOverview = (oldStateIsNormal && stateIsOverview); 2232 boolean overviewToWorkspace = (oldStateIsOverview && stateIsNormal); 2233 2234 mNewScale = 1.0f; 2235 2236 if (oldStateIsOverview) { 2237 disableFreeScroll(); 2238 } else if (stateIsOverview) { 2239 enableFreeScroll(); 2240 } 2241 2242 if (state != State.NORMAL) { 2243 if (stateIsSpringLoaded) { 2244 mNewScale = mSpringLoadedShrinkFactor; 2245 } else if (stateIsOverview || stateIsOverviewHidden) { 2246 mNewScale = mOverviewModeShrinkFactor; 2247 } 2248 } 2249 2250 final int duration; 2251 if (workspaceToAllApps || overviewToAllApps) { 2252 duration = HIDE_WORKSPACE_DURATION; //getResources().getInteger(R.integer.config_workspaceUnshrinkTime); 2253 } else if (workspaceToOverview || overviewToWorkspace) { 2254 duration = getResources().getInteger(R.integer.config_overviewTransitionTime); 2255 } else { 2256 duration = getResources().getInteger(R.integer.config_appsCustomizeWorkspaceShrinkTime); 2257 } 2258 2259 if (snapPage == -1) { 2260 snapPage = getPageNearestToCenterOfScreen(); 2261 } 2262 snapToPage(snapPage, duration, mZoomInInterpolator); 2263 2264 for (int i = 0; i < getChildCount(); i++) { 2265 final CellLayout cl = (CellLayout) getChildAt(i); 2266 boolean isCurrentPage = (i == snapPage); 2267 float initialAlpha = cl.getShortcutsAndWidgets().getAlpha(); 2268 float finalAlpha; 2269 if (stateIsNormalHidden || stateIsOverviewHidden) { 2270 finalAlpha = 0f; 2271 } else if (stateIsNormal && mWorkspaceFadeInAdjacentScreens) { 2272 finalAlpha = (i == snapPage || i < numCustomPages()) ? 1f : 0f; 2273 } else { 2274 finalAlpha = 1f; 2275 } 2276 2277 // If we are animating to/from the small state, then hide the side pages and fade the 2278 // current page in 2279 if (!mIsSwitchingState) { 2280 if (workspaceToAllApps || allAppsToWorkspace) { 2281 if (allAppsToWorkspace && isCurrentPage) { 2282 initialAlpha = 0f; 2283 } else if (!isCurrentPage) { 2284 initialAlpha = finalAlpha = 0f; 2285 } 2286 cl.setShortcutAndWidgetAlpha(initialAlpha); 2287 } 2288 } 2289 2290 mOldAlphas[i] = initialAlpha; 2291 mNewAlphas[i] = finalAlpha; 2292 if (animated) { 2293 mOldBackgroundAlphas[i] = cl.getBackgroundAlpha(); 2294 mNewBackgroundAlphas[i] = finalBackgroundAlpha; 2295 } else { 2296 cl.setBackgroundAlpha(finalBackgroundAlpha); 2297 cl.setShortcutAndWidgetAlpha(finalAlpha); 2298 } 2299 } 2300 2301 final View searchBar = mLauncher.getQsbBar(); 2302 final View overviewPanel = mLauncher.getOverviewPanel(); 2303 final View hotseat = mLauncher.getHotseat(); 2304 final View pageIndicator = getPageIndicator(); 2305 if (animated) { 2306 LauncherViewPropertyAnimator scale = new LauncherViewPropertyAnimator(this); 2307 scale.scaleX(mNewScale) 2308 .scaleY(mNewScale) 2309 .translationY(finalWorkspaceTranslationY) 2310 .setDuration(duration) 2311 .setInterpolator(mZoomInInterpolator); 2312 anim.play(scale); 2313 for (int index = 0; index < getChildCount(); index++) { 2314 final int i = index; 2315 final CellLayout cl = (CellLayout) getChildAt(i); 2316 float currentAlpha = cl.getShortcutsAndWidgets().getAlpha(); 2317 if (mOldAlphas[i] == 0 && mNewAlphas[i] == 0) { 2318 cl.setBackgroundAlpha(mNewBackgroundAlphas[i]); 2319 cl.setShortcutAndWidgetAlpha(mNewAlphas[i]); 2320 } else { 2321 if (mOldAlphas[i] != mNewAlphas[i] || currentAlpha != mNewAlphas[i]) { 2322 LauncherViewPropertyAnimator alphaAnim = 2323 new LauncherViewPropertyAnimator(cl.getShortcutsAndWidgets()); 2324 alphaAnim.alpha(mNewAlphas[i]) 2325 .setDuration(duration) 2326 .setInterpolator(mZoomInInterpolator); 2327 anim.play(alphaAnim); 2328 } 2329 if (mOldBackgroundAlphas[i] != 0 || 2330 mNewBackgroundAlphas[i] != 0) { 2331 ValueAnimator bgAnim = 2332 LauncherAnimUtils.ofFloat(cl, 0f, 1f); 2333 bgAnim.setInterpolator(mZoomInInterpolator); 2334 bgAnim.setDuration(duration); 2335 bgAnim.addUpdateListener(new LauncherAnimatorUpdateListener() { 2336 public void onAnimationUpdate(float a, float b) { 2337 cl.setBackgroundAlpha( 2338 a * mOldBackgroundAlphas[i] + 2339 b * mNewBackgroundAlphas[i]); 2340 } 2341 }); 2342 anim.play(bgAnim); 2343 } 2344 } 2345 } 2346 Animator pageIndicatorAlpha = null; 2347 if (pageIndicator != null) { 2348 pageIndicatorAlpha = new LauncherViewPropertyAnimator(pageIndicator) 2349 .alpha(finalHotseatAndPageIndicatorAlpha).withLayer(); 2350 pageIndicatorAlpha.addListener(new AlphaUpdateListener(pageIndicator)); 2351 } else { 2352 // create a dummy animation so we don't need to do null checks later 2353 pageIndicatorAlpha = ValueAnimator.ofFloat(0, 0); 2354 } 2355 2356 Animator hotseatAlpha = new LauncherViewPropertyAnimator(hotseat) 2357 .alpha(finalHotseatAndPageIndicatorAlpha).withLayer(); 2358 hotseatAlpha.addListener(new AlphaUpdateListener(hotseat)); 2359 2360 Animator searchBarAlpha = new LauncherViewPropertyAnimator(searchBar) 2361 .alpha(finalSearchBarAlpha).withLayer(); 2362 searchBarAlpha.addListener(new AlphaUpdateListener(searchBar)); 2363 2364 Animator overviewPanelAlpha = new LauncherViewPropertyAnimator(overviewPanel) 2365 .alpha(finalOverviewPanelAlpha).withLayer(); 2366 overviewPanelAlpha.addListener(new AlphaUpdateListener(overviewPanel)); 2367 2368 if (workspaceToOverview) { 2369 pageIndicatorAlpha.setInterpolator(new DecelerateInterpolator(2)); 2370 hotseatAlpha.setInterpolator(new DecelerateInterpolator(2)); 2371 overviewPanelAlpha.setInterpolator(null); 2372 } else if (overviewToWorkspace) { 2373 pageIndicatorAlpha.setInterpolator(null); 2374 hotseatAlpha.setInterpolator(null); 2375 overviewPanelAlpha.setInterpolator(new DecelerateInterpolator(2)); 2376 } 2377 2378 overviewPanelAlpha.setDuration(duration); 2379 pageIndicatorAlpha.setDuration(duration); 2380 hotseatAlpha.setDuration(duration); 2381 searchBarAlpha.setDuration(duration); 2382 2383 anim.play(overviewPanelAlpha); 2384 anim.play(hotseatAlpha); 2385 anim.play(searchBarAlpha); 2386 anim.play(pageIndicatorAlpha); 2387 anim.setStartDelay(delay); 2388 } else { 2389 overviewPanel.setAlpha(finalOverviewPanelAlpha); 2390 AlphaUpdateListener.updateVisibility(overviewPanel); 2391 hotseat.setAlpha(finalHotseatAndPageIndicatorAlpha); 2392 AlphaUpdateListener.updateVisibility(hotseat); 2393 if (pageIndicator != null) { 2394 pageIndicator.setAlpha(finalHotseatAndPageIndicatorAlpha); 2395 AlphaUpdateListener.updateVisibility(pageIndicator); 2396 } 2397 searchBar.setAlpha(finalSearchBarAlpha); 2398 AlphaUpdateListener.updateVisibility(searchBar); 2399 updateCustomContentVisibility(); 2400 setScaleX(mNewScale); 2401 setScaleY(mNewScale); 2402 setTranslationY(finalWorkspaceTranslationY); 2403 } 2404 mLauncher.updateVoiceButtonProxyVisible(false); 2405 2406 if (stateIsNormal) { 2407 animateBackgroundGradient(0f, animated); 2408 } else { 2409 animateBackgroundGradient(getResources().getInteger( 2410 R.integer.config_workspaceScrimAlpha) / 100f, animated); 2411 } 2412 return anim; 2413 } 2414 2415 static class AlphaUpdateListener implements AnimatorUpdateListener, AnimatorListener { 2416 View view; 2417 public AlphaUpdateListener(View v) { 2418 view = v; 2419 } 2420 2421 @Override 2422 public void onAnimationUpdate(ValueAnimator arg0) { 2423 updateVisibility(view); 2424 } 2425 2426 public static void updateVisibility(View view) { 2427 // We want to avoid the extra layout pass by setting the views to GONE unless 2428 // accessibility is on, in which case not setting them to GONE causes a glitch. 2429 int invisibleState = sAccessibilityEnabled ? GONE : INVISIBLE; 2430 if (view.getAlpha() < ALPHA_CUTOFF_THRESHOLD && view.getVisibility() != invisibleState) { 2431 view.setVisibility(invisibleState); 2432 } else if (view.getAlpha() > ALPHA_CUTOFF_THRESHOLD 2433 && view.getVisibility() != VISIBLE) { 2434 view.setVisibility(VISIBLE); 2435 } 2436 } 2437 2438 @Override 2439 public void onAnimationCancel(Animator arg0) { 2440 } 2441 2442 @Override 2443 public void onAnimationEnd(Animator arg0) { 2444 updateVisibility(view); 2445 } 2446 2447 @Override 2448 public void onAnimationRepeat(Animator arg0) { 2449 } 2450 2451 @Override 2452 public void onAnimationStart(Animator arg0) { 2453 // We want the views to be visible for animation, so fade-in/out is visible 2454 view.setVisibility(VISIBLE); 2455 } 2456 } 2457 2458 @Override 2459 public void onLauncherTransitionPrepare(Launcher l, boolean animated, boolean toWorkspace) { 2460 onTransitionPrepare(); 2461 } 2462 2463 @Override 2464 public void onLauncherTransitionStart(Launcher l, boolean animated, boolean toWorkspace) { 2465 } 2466 2467 @Override 2468 public void onLauncherTransitionStep(Launcher l, float t) { 2469 mTransitionProgress = t; 2470 } 2471 2472 @Override 2473 public void onLauncherTransitionEnd(Launcher l, boolean animated, boolean toWorkspace) { 2474 onTransitionEnd(); 2475 } 2476 2477 private void onTransitionPrepare() { 2478 mIsSwitchingState = true; 2479 2480 // Invalidate here to ensure that the pages are rendered during the state change transition. 2481 invalidate(); 2482 2483 updateChildrenLayersEnabled(false); 2484 hideCustomContentIfNecessary(); 2485 } 2486 2487 void updateCustomContentVisibility() { 2488 int visibility = mState == Workspace.State.NORMAL ? VISIBLE : INVISIBLE; 2489 if (hasCustomContent()) { 2490 mWorkspaceScreens.get(CUSTOM_CONTENT_SCREEN_ID).setVisibility(visibility); 2491 } 2492 } 2493 2494 void showCustomContentIfNecessary() { 2495 boolean show = mState == Workspace.State.NORMAL; 2496 if (show && hasCustomContent()) { 2497 mWorkspaceScreens.get(CUSTOM_CONTENT_SCREEN_ID).setVisibility(VISIBLE); 2498 } 2499 } 2500 2501 void hideCustomContentIfNecessary() { 2502 boolean hide = mState != Workspace.State.NORMAL; 2503 if (hide && hasCustomContent()) { 2504 disableLayoutTransitions(); 2505 mWorkspaceScreens.get(CUSTOM_CONTENT_SCREEN_ID).setVisibility(INVISIBLE); 2506 enableLayoutTransitions(); 2507 } 2508 } 2509 2510 private void onTransitionEnd() { 2511 mIsSwitchingState = false; 2512 updateChildrenLayersEnabled(false); 2513 // The code in getChangeStateAnimation to determine initialAlpha and finalAlpha will ensure 2514 // ensure that only the current page is visible during (and subsequently, after) the 2515 // transition animation. If fade adjacent pages is disabled, then re-enable the page 2516 // visibility after the transition animation. 2517 if (!mWorkspaceFadeInAdjacentScreens) { 2518 for (int i = 0; i < getChildCount(); i++) { 2519 final CellLayout cl = (CellLayout) getChildAt(i); 2520 cl.setShortcutAndWidgetAlpha(1f); 2521 } 2522 } else { 2523 for (int i = 0; i < numCustomPages(); i++) { 2524 final CellLayout cl = (CellLayout) getChildAt(i); 2525 cl.setShortcutAndWidgetAlpha(1f); 2526 } 2527 } 2528 showCustomContentIfNecessary(); 2529 } 2530 2531 @Override 2532 public View getContent() { 2533 return this; 2534 } 2535 2536 /** 2537 * Draw the View v into the given Canvas. 2538 * 2539 * @param v the view to draw 2540 * @param destCanvas the canvas to draw on 2541 * @param padding the horizontal and vertical padding to use when drawing 2542 */ 2543 private void drawDragView(View v, Canvas destCanvas, int padding) { 2544 final Rect clipRect = mTempRect; 2545 v.getDrawingRect(clipRect); 2546 2547 boolean textVisible = false; 2548 2549 destCanvas.save(); 2550 if (v instanceof TextView) { 2551 Drawable d = ((TextView) v).getCompoundDrawables()[1]; 2552 Rect bounds = getDrawableBounds(d); 2553 clipRect.set(0, 0, bounds.width() + padding, bounds.height() + padding); 2554 destCanvas.translate(padding / 2 - bounds.left, padding / 2 - bounds.top); 2555 d.draw(destCanvas); 2556 } else { 2557 if (v instanceof FolderIcon) { 2558 // For FolderIcons the text can bleed into the icon area, and so we need to 2559 // hide the text completely (which can't be achieved by clipping). 2560 if (((FolderIcon) v).getTextVisible()) { 2561 ((FolderIcon) v).setTextVisible(false); 2562 textVisible = true; 2563 } 2564 } 2565 destCanvas.translate(-v.getScrollX() + padding / 2, -v.getScrollY() + padding / 2); 2566 destCanvas.clipRect(clipRect, Op.REPLACE); 2567 v.draw(destCanvas); 2568 2569 // Restore text visibility of FolderIcon if necessary 2570 if (textVisible) { 2571 ((FolderIcon) v).setTextVisible(true); 2572 } 2573 } 2574 destCanvas.restore(); 2575 } 2576 2577 /** 2578 * Returns a new bitmap to show when the given View is being dragged around. 2579 * Responsibility for the bitmap is transferred to the caller. 2580 * @param expectedPadding padding to add to the drag view. If a different padding was used 2581 * its value will be changed 2582 */ 2583 public Bitmap createDragBitmap(View v, Canvas canvas, AtomicInteger expectedPadding) { 2584 Bitmap b; 2585 2586 int padding = expectedPadding.get(); 2587 if (v instanceof TextView) { 2588 Drawable d = ((TextView) v).getCompoundDrawables()[1]; 2589 Rect bounds = getDrawableBounds(d); 2590 b = Bitmap.createBitmap(bounds.width() + padding, 2591 bounds.height() + padding, Bitmap.Config.ARGB_8888); 2592 expectedPadding.set(padding - bounds.left - bounds.top); 2593 } else { 2594 b = Bitmap.createBitmap( 2595 v.getWidth() + padding, v.getHeight() + padding, Bitmap.Config.ARGB_8888); 2596 } 2597 2598 canvas.setBitmap(b); 2599 drawDragView(v, canvas, padding); 2600 canvas.setBitmap(null); 2601 2602 return b; 2603 } 2604 2605 /** 2606 * Returns a new bitmap to be used as the object outline, e.g. to visualize the drop location. 2607 * Responsibility for the bitmap is transferred to the caller. 2608 */ 2609 private Bitmap createDragOutline(View v, Canvas canvas, int padding) { 2610 final int outlineColor = getResources().getColor(R.color.outline_color); 2611 final Bitmap b = Bitmap.createBitmap( 2612 v.getWidth() + padding, v.getHeight() + padding, Bitmap.Config.ARGB_8888); 2613 2614 canvas.setBitmap(b); 2615 drawDragView(v, canvas, padding); 2616 mOutlineHelper.applyMediumExpensiveOutlineWithBlur(b, canvas, outlineColor, outlineColor); 2617 canvas.setBitmap(null); 2618 return b; 2619 } 2620 2621 /** 2622 * Returns a new bitmap to be used as the object outline, e.g. to visualize the drop location. 2623 * Responsibility for the bitmap is transferred to the caller. 2624 */ 2625 private Bitmap createDragOutline(Bitmap orig, Canvas canvas, int padding, int w, int h, 2626 boolean clipAlpha) { 2627 final int outlineColor = getResources().getColor(R.color.outline_color); 2628 final Bitmap b = Bitmap.createBitmap(w, h, Bitmap.Config.ARGB_8888); 2629 canvas.setBitmap(b); 2630 2631 Rect src = new Rect(0, 0, orig.getWidth(), orig.getHeight()); 2632 float scaleFactor = Math.min((w - padding) / (float) orig.getWidth(), 2633 (h - padding) / (float) orig.getHeight()); 2634 int scaledWidth = (int) (scaleFactor * orig.getWidth()); 2635 int scaledHeight = (int) (scaleFactor * orig.getHeight()); 2636 Rect dst = new Rect(0, 0, scaledWidth, scaledHeight); 2637 2638 // center the image 2639 dst.offset((w - scaledWidth) / 2, (h - scaledHeight) / 2); 2640 2641 canvas.drawBitmap(orig, src, dst, null); 2642 mOutlineHelper.applyMediumExpensiveOutlineWithBlur(b, canvas, outlineColor, outlineColor, 2643 clipAlpha); 2644 canvas.setBitmap(null); 2645 2646 return b; 2647 } 2648 2649 void startDrag(CellLayout.CellInfo cellInfo) { 2650 View child = cellInfo.cell; 2651 2652 // Make sure the drag was started by a long press as opposed to a long click. 2653 if (!child.isInTouchMode()) { 2654 return; 2655 } 2656 2657 mDragInfo = cellInfo; 2658 child.setVisibility(INVISIBLE); 2659 CellLayout layout = (CellLayout) child.getParent().getParent(); 2660 layout.prepareChildForDrag(child); 2661 2662 child.clearFocus(); 2663 child.setPressed(false); 2664 2665 final Canvas canvas = new Canvas(); 2666 2667 // The outline is used to visualize where the item will land if dropped 2668 mDragOutline = createDragOutline(child, canvas, DRAG_BITMAP_PADDING); 2669 beginDragShared(child, this); 2670 } 2671 2672 public void beginDragShared(View child, DragSource source) { 2673 mLauncher.onDragStarted(child); 2674 // The drag bitmap follows the touch point around on the screen 2675 AtomicInteger padding = new AtomicInteger(DRAG_BITMAP_PADDING); 2676 final Bitmap b = createDragBitmap(child, new Canvas(), padding); 2677 2678 final int bmpWidth = b.getWidth(); 2679 final int bmpHeight = b.getHeight(); 2680 2681 float scale = mLauncher.getDragLayer().getLocationInDragLayer(child, mTempXY); 2682 int dragLayerX = Math.round(mTempXY[0] - (bmpWidth - scale * child.getWidth()) / 2); 2683 int dragLayerY = Math.round(mTempXY[1] - (bmpHeight - scale * bmpHeight) / 2 2684 - padding.get() / 2); 2685 2686 LauncherAppState app = LauncherAppState.getInstance(); 2687 DeviceProfile grid = app.getDynamicGrid().getDeviceProfile(); 2688 Point dragVisualizeOffset = null; 2689 Rect dragRect = null; 2690 if (child instanceof BubbleTextView || child instanceof PagedViewIcon) { 2691 int iconSize = grid.iconSizePx; 2692 int top = child.getPaddingTop(); 2693 int left = (bmpWidth - iconSize) / 2; 2694 int right = left + iconSize; 2695 int bottom = top + iconSize; 2696 dragLayerY += top; 2697 // Note: The drag region is used to calculate drag layer offsets, but the 2698 // dragVisualizeOffset in addition to the dragRect (the size) to position the outline. 2699 dragVisualizeOffset = new Point(-padding.get() / 2, padding.get() / 2); 2700 dragRect = new Rect(left, top, right, bottom); 2701 } else if (child instanceof FolderIcon) { 2702 int previewSize = grid.folderIconSizePx; 2703 dragRect = new Rect(0, child.getPaddingTop(), child.getWidth(), previewSize); 2704 } 2705 2706 // Clear the pressed state if necessary 2707 if (child instanceof BubbleTextView) { 2708 BubbleTextView icon = (BubbleTextView) child; 2709 icon.clearPressedOrFocusedBackground(); 2710 } else if (child instanceof FolderIcon) { 2711 // The folder cling isn't flexible enough to be shown in non-default workspace positions 2712 // Also if they are dragging it a folder, we assume they don't need to see the cling. 2713 mLauncher.markFolderClingDismissedIfNecessary(); 2714 } 2715 2716 if (child.getTag() == null || !(child.getTag() instanceof ItemInfo)) { 2717 String msg = "Drag started with a view that has no tag set. This " 2718 + "will cause a crash (issue 11627249) down the line. " 2719 + "View: " + child + " tag: " + child.getTag(); 2720 throw new IllegalStateException(msg); 2721 } 2722 2723 DragView dv = mDragController.startDrag(b, dragLayerX, dragLayerY, source, child.getTag(), 2724 DragController.DRAG_ACTION_MOVE, dragVisualizeOffset, dragRect, scale); 2725 dv.setIntrinsicIconScaleFactor(source.getIntrinsicIconScaleFactor()); 2726 2727 if (child.getParent() instanceof ShortcutAndWidgetContainer) { 2728 mDragSourceInternal = (ShortcutAndWidgetContainer) child.getParent(); 2729 } 2730 2731 b.recycle(); 2732 } 2733 2734 public void beginExternalDragShared(View child, DragSource source) { 2735 LauncherAppState app = LauncherAppState.getInstance(); 2736 DeviceProfile grid = app.getDynamicGrid().getDeviceProfile(); 2737 int iconSize = grid.iconSizePx; 2738 2739 // Notify launcher of drag start 2740 mLauncher.onDragStarted(child); 2741 2742 // Compose a new drag bitmap that is of the icon size 2743 AtomicInteger padding = new AtomicInteger(DRAG_BITMAP_PADDING); 2744 final Bitmap tmpB = createDragBitmap(child, new Canvas(), padding); 2745 Bitmap b = Bitmap.createBitmap(iconSize, iconSize, Bitmap.Config.ARGB_8888); 2746 Paint p = new Paint(); 2747 p.setFilterBitmap(true); 2748 Canvas c = new Canvas(b); 2749 c.drawBitmap(tmpB, new Rect(0, 0, tmpB.getWidth(), tmpB.getHeight()), 2750 new Rect(0, 0, iconSize, iconSize), p); 2751 c.setBitmap(null); 2752 2753 // Find the child's location on the screen 2754 int bmpWidth = tmpB.getWidth(); 2755 float iconScale = (float) bmpWidth / iconSize; 2756 float scale = mLauncher.getDragLayer().getLocationInDragLayer(child, mTempXY) * iconScale; 2757 int dragLayerX = Math.round(mTempXY[0] - (bmpWidth - scale * child.getWidth()) / 2); 2758 int dragLayerY = Math.round(mTempXY[1]); 2759 2760 // Note: The drag region is used to calculate drag layer offsets, but the 2761 // dragVisualizeOffset in addition to the dragRect (the size) to position the outline. 2762 Point dragVisualizeOffset = new Point(-padding.get() / 2, padding.get() / 2); 2763 Rect dragRect = new Rect(0, 0, iconSize, iconSize); 2764 2765 if (child.getTag() == null || !(child.getTag() instanceof ItemInfo)) { 2766 String msg = "Drag started with a view that has no tag set. This " 2767 + "will cause a crash (issue 11627249) down the line. " 2768 + "View: " + child + " tag: " + child.getTag(); 2769 throw new IllegalStateException(msg); 2770 } 2771 2772 // Start the drag 2773 DragView dv = mDragController.startDrag(b, dragLayerX, dragLayerY, source, child.getTag(), 2774 DragController.DRAG_ACTION_MOVE, dragVisualizeOffset, dragRect, scale); 2775 dv.setIntrinsicIconScaleFactor(source.getIntrinsicIconScaleFactor()); 2776 2777 // Recycle temporary bitmaps 2778 tmpB.recycle(); 2779 } 2780 2781 void addApplicationShortcut(ShortcutInfo info, CellLayout target, long container, long screenId, 2782 int cellX, int cellY, boolean insertAtFirst, int intersectX, int intersectY) { 2783 View view = mLauncher.createShortcut(R.layout.application, target, (ShortcutInfo) info); 2784 2785 final int[] cellXY = new int[2]; 2786 target.findCellForSpanThatIntersects(cellXY, 1, 1, intersectX, intersectY); 2787 addInScreen(view, container, screenId, cellXY[0], cellXY[1], 1, 1, insertAtFirst); 2788 2789 LauncherModel.addOrMoveItemInDatabase(mLauncher, info, container, screenId, cellXY[0], 2790 cellXY[1]); 2791 } 2792 2793 public boolean transitionStateShouldAllowDrop() { 2794 return ((!isSwitchingState() || mTransitionProgress > 0.5f) && 2795 (mState == State.NORMAL || mState == State.SPRING_LOADED)); 2796 } 2797 2798 /** 2799 * {@inheritDoc} 2800 */ 2801 public boolean acceptDrop(DragObject d) { 2802 // If it's an external drop (e.g. from All Apps), check if it should be accepted 2803 CellLayout dropTargetLayout = mDropToLayout; 2804 if (d.dragSource != this) { 2805 // Don't accept the drop if we're not over a screen at time of drop 2806 if (dropTargetLayout == null) { 2807 return false; 2808 } 2809 if (!transitionStateShouldAllowDrop()) return false; 2810 2811 mDragViewVisualCenter = getDragViewVisualCenter(d.x, d.y, d.xOffset, d.yOffset, 2812 d.dragView, mDragViewVisualCenter); 2813 2814 // We want the point to be mapped to the dragTarget. 2815 if (mLauncher.isHotseatLayout(dropTargetLayout)) { 2816 mapPointFromSelfToHotseatLayout(mLauncher.getHotseat(), mDragViewVisualCenter); 2817 } else { 2818 mapPointFromSelfToChild(dropTargetLayout, mDragViewVisualCenter, null); 2819 } 2820 2821 int spanX = 1; 2822 int spanY = 1; 2823 if (mDragInfo != null) { 2824 final CellLayout.CellInfo dragCellInfo = mDragInfo; 2825 spanX = dragCellInfo.spanX; 2826 spanY = dragCellInfo.spanY; 2827 } else { 2828 final ItemInfo dragInfo = (ItemInfo) d.dragInfo; 2829 spanX = dragInfo.spanX; 2830 spanY = dragInfo.spanY; 2831 } 2832 2833 int minSpanX = spanX; 2834 int minSpanY = spanY; 2835 if (d.dragInfo instanceof PendingAddWidgetInfo) { 2836 minSpanX = ((PendingAddWidgetInfo) d.dragInfo).minSpanX; 2837 minSpanY = ((PendingAddWidgetInfo) d.dragInfo).minSpanY; 2838 } 2839 2840 mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], 2841 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, dropTargetLayout, 2842 mTargetCell); 2843 float distance = dropTargetLayout.getDistanceFromCell(mDragViewVisualCenter[0], 2844 mDragViewVisualCenter[1], mTargetCell); 2845 if (mCreateUserFolderOnDrop && willCreateUserFolder((ItemInfo) d.dragInfo, 2846 dropTargetLayout, mTargetCell, distance, true)) { 2847 return true; 2848 } 2849 2850 if (mAddToExistingFolderOnDrop && willAddToExistingUserFolder((ItemInfo) d.dragInfo, 2851 dropTargetLayout, mTargetCell, distance)) { 2852 return true; 2853 } 2854 2855 int[] resultSpan = new int[2]; 2856 mTargetCell = dropTargetLayout.performReorder((int) mDragViewVisualCenter[0], 2857 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, spanX, spanY, 2858 null, mTargetCell, resultSpan, CellLayout.MODE_ACCEPT_DROP); 2859 boolean foundCell = mTargetCell[0] >= 0 && mTargetCell[1] >= 0; 2860 2861 // Don't accept the drop if there's no room for the item 2862 if (!foundCell) { 2863 // Don't show the message if we are dropping on the AllApps button and the hotseat 2864 // is full 2865 boolean isHotseat = mLauncher.isHotseatLayout(dropTargetLayout); 2866 if (mTargetCell != null && isHotseat) { 2867 Hotseat hotseat = mLauncher.getHotseat(); 2868 if (hotseat.isAllAppsButtonRank( 2869 hotseat.getOrderInHotseat(mTargetCell[0], mTargetCell[1]))) { 2870 return false; 2871 } 2872 } 2873 2874 mLauncher.showOutOfSpaceMessage(isHotseat); 2875 return false; 2876 } 2877 } 2878 2879 long screenId = getIdForScreen(dropTargetLayout); 2880 if (screenId == EXTRA_EMPTY_SCREEN_ID) { 2881 commitExtraEmptyScreen(); 2882 } 2883 2884 return true; 2885 } 2886 2887 boolean willCreateUserFolder(ItemInfo info, CellLayout target, int[] targetCell, float 2888 distance, boolean considerTimeout) { 2889 if (distance > mMaxDistanceForFolderCreation) return false; 2890 View dropOverView = target.getChildAt(targetCell[0], targetCell[1]); 2891 2892 if (dropOverView != null) { 2893 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) dropOverView.getLayoutParams(); 2894 if (lp.useTmpCoords && (lp.tmpCellX != lp.cellX || lp.tmpCellY != lp.tmpCellY)) { 2895 return false; 2896 } 2897 } 2898 2899 boolean hasntMoved = false; 2900 if (mDragInfo != null) { 2901 hasntMoved = dropOverView == mDragInfo.cell; 2902 } 2903 2904 if (dropOverView == null || hasntMoved || (considerTimeout && !mCreateUserFolderOnDrop)) { 2905 return false; 2906 } 2907 2908 boolean aboveShortcut = (dropOverView.getTag() instanceof ShortcutInfo); 2909 boolean willBecomeShortcut = 2910 (info.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPLICATION || 2911 info.itemType == LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT); 2912 2913 return (aboveShortcut && willBecomeShortcut); 2914 } 2915 2916 boolean willAddToExistingUserFolder(Object dragInfo, CellLayout target, int[] targetCell, 2917 float distance) { 2918 if (distance > mMaxDistanceForFolderCreation) return false; 2919 View dropOverView = target.getChildAt(targetCell[0], targetCell[1]); 2920 2921 if (dropOverView != null) { 2922 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) dropOverView.getLayoutParams(); 2923 if (lp.useTmpCoords && (lp.tmpCellX != lp.cellX || lp.tmpCellY != lp.tmpCellY)) { 2924 return false; 2925 } 2926 } 2927 2928 if (dropOverView instanceof FolderIcon) { 2929 FolderIcon fi = (FolderIcon) dropOverView; 2930 if (fi.acceptDrop(dragInfo)) { 2931 return true; 2932 } 2933 } 2934 return false; 2935 } 2936 2937 boolean createUserFolderIfNecessary(View newView, long container, CellLayout target, 2938 int[] targetCell, float distance, boolean external, DragView dragView, 2939 Runnable postAnimationRunnable) { 2940 if (distance > mMaxDistanceForFolderCreation) return false; 2941 View v = target.getChildAt(targetCell[0], targetCell[1]); 2942 2943 boolean hasntMoved = false; 2944 if (mDragInfo != null) { 2945 CellLayout cellParent = getParentCellLayoutForView(mDragInfo.cell); 2946 hasntMoved = (mDragInfo.cellX == targetCell[0] && 2947 mDragInfo.cellY == targetCell[1]) && (cellParent == target); 2948 } 2949 2950 if (v == null || hasntMoved || !mCreateUserFolderOnDrop) return false; 2951 mCreateUserFolderOnDrop = false; 2952 final long screenId = (targetCell == null) ? mDragInfo.screenId : getIdForScreen(target); 2953 2954 boolean aboveShortcut = (v.getTag() instanceof ShortcutInfo); 2955 boolean willBecomeShortcut = (newView.getTag() instanceof ShortcutInfo); 2956 2957 if (aboveShortcut && willBecomeShortcut) { 2958 ShortcutInfo sourceInfo = (ShortcutInfo) newView.getTag(); 2959 ShortcutInfo destInfo = (ShortcutInfo) v.getTag(); 2960 // if the drag started here, we need to remove it from the workspace 2961 if (!external) { 2962 getParentCellLayoutForView(mDragInfo.cell).removeView(mDragInfo.cell); 2963 } 2964 2965 Rect folderLocation = new Rect(); 2966 float scale = mLauncher.getDragLayer().getDescendantRectRelativeToSelf(v, folderLocation); 2967 target.removeView(v); 2968 2969 FolderIcon fi = 2970 mLauncher.addFolder(target, container, screenId, targetCell[0], targetCell[1]); 2971 destInfo.cellX = -1; 2972 destInfo.cellY = -1; 2973 sourceInfo.cellX = -1; 2974 sourceInfo.cellY = -1; 2975 2976 // If the dragView is null, we can't animate 2977 boolean animate = dragView != null; 2978 if (animate) { 2979 fi.performCreateAnimation(destInfo, v, sourceInfo, dragView, folderLocation, scale, 2980 postAnimationRunnable); 2981 } else { 2982 fi.addItem(destInfo); 2983 fi.addItem(sourceInfo); 2984 } 2985 return true; 2986 } 2987 return false; 2988 } 2989 2990 boolean addToExistingFolderIfNecessary(View newView, CellLayout target, int[] targetCell, 2991 float distance, DragObject d, boolean external) { 2992 if (distance > mMaxDistanceForFolderCreation) return false; 2993 2994 View dropOverView = target.getChildAt(targetCell[0], targetCell[1]); 2995 if (!mAddToExistingFolderOnDrop) return false; 2996 mAddToExistingFolderOnDrop = false; 2997 2998 if (dropOverView instanceof FolderIcon) { 2999 FolderIcon fi = (FolderIcon) dropOverView; 3000 if (fi.acceptDrop(d.dragInfo)) { 3001 fi.onDrop(d); 3002 3003 // if the drag started here, we need to remove it from the workspace 3004 if (!external) { 3005 getParentCellLayoutForView(mDragInfo.cell).removeView(mDragInfo.cell); 3006 } 3007 return true; 3008 } 3009 } 3010 return false; 3011 } 3012 3013 public void onDrop(final DragObject d) { 3014 mDragViewVisualCenter = getDragViewVisualCenter(d.x, d.y, d.xOffset, d.yOffset, d.dragView, 3015 mDragViewVisualCenter); 3016 3017 CellLayout dropTargetLayout = mDropToLayout; 3018 3019 // We want the point to be mapped to the dragTarget. 3020 if (dropTargetLayout != null) { 3021 if (mLauncher.isHotseatLayout(dropTargetLayout)) { 3022 mapPointFromSelfToHotseatLayout(mLauncher.getHotseat(), mDragViewVisualCenter); 3023 } else { 3024 mapPointFromSelfToChild(dropTargetLayout, mDragViewVisualCenter, null); 3025 } 3026 } 3027 3028 int snapScreen = -1; 3029 boolean resizeOnDrop = false; 3030 if (d.dragSource != this) { 3031 final int[] touchXY = new int[] { (int) mDragViewVisualCenter[0], 3032 (int) mDragViewVisualCenter[1] }; 3033 onDropExternal(touchXY, d.dragInfo, dropTargetLayout, false, d); 3034 } else if (mDragInfo != null) { 3035 final View cell = mDragInfo.cell; 3036 3037 Runnable resizeRunnable = null; 3038 if (dropTargetLayout != null && !d.cancelled) { 3039 // Move internally 3040 boolean hasMovedLayouts = (getParentCellLayoutForView(cell) != dropTargetLayout); 3041 boolean hasMovedIntoHotseat = mLauncher.isHotseatLayout(dropTargetLayout); 3042 long container = hasMovedIntoHotseat ? 3043 LauncherSettings.Favorites.CONTAINER_HOTSEAT : 3044 LauncherSettings.Favorites.CONTAINER_DESKTOP; 3045 long screenId = (mTargetCell[0] < 0) ? 3046 mDragInfo.screenId : getIdForScreen(dropTargetLayout); 3047 int spanX = mDragInfo != null ? mDragInfo.spanX : 1; 3048 int spanY = mDragInfo != null ? mDragInfo.spanY : 1; 3049 // First we find the cell nearest to point at which the item is 3050 // dropped, without any consideration to whether there is an item there. 3051 3052 mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], (int) 3053 mDragViewVisualCenter[1], spanX, spanY, dropTargetLayout, mTargetCell); 3054 float distance = dropTargetLayout.getDistanceFromCell(mDragViewVisualCenter[0], 3055 mDragViewVisualCenter[1], mTargetCell); 3056 3057 // If the item being dropped is a shortcut and the nearest drop 3058 // cell also contains a shortcut, then create a folder with the two shortcuts. 3059 if (!mInScrollArea && createUserFolderIfNecessary(cell, container, 3060 dropTargetLayout, mTargetCell, distance, false, d.dragView, null)) { 3061 // The folder cling isn't flexible enough to be shown in non-default workspace 3062 // positions. Also if they are creating a folder, we assume they don't need to 3063 // see the cling. 3064 mLauncher.markFolderClingDismissedIfNecessary(); 3065 return; 3066 } 3067 3068 if (addToExistingFolderIfNecessary(cell, dropTargetLayout, mTargetCell, 3069 distance, d, false)) { 3070 return; 3071 } 3072 3073 // Aside from the special case where we're dropping a shortcut onto a shortcut, 3074 // we need to find the nearest cell location that is vacant 3075 ItemInfo item = (ItemInfo) d.dragInfo; 3076 int minSpanX = item.spanX; 3077 int minSpanY = item.spanY; 3078 if (item.minSpanX > 0 && item.minSpanY > 0) { 3079 minSpanX = item.minSpanX; 3080 minSpanY = item.minSpanY; 3081 } 3082 3083 int[] resultSpan = new int[2]; 3084 mTargetCell = dropTargetLayout.performReorder((int) mDragViewVisualCenter[0], 3085 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, spanX, spanY, cell, 3086 mTargetCell, resultSpan, CellLayout.MODE_ON_DROP); 3087 3088 boolean foundCell = mTargetCell[0] >= 0 && mTargetCell[1] >= 0; 3089 3090 // if the widget resizes on drop 3091 if (foundCell && (cell instanceof AppWidgetHostView) && 3092 (resultSpan[0] != item.spanX || resultSpan[1] != item.spanY)) { 3093 resizeOnDrop = true; 3094 item.spanX = resultSpan[0]; 3095 item.spanY = resultSpan[1]; 3096 AppWidgetHostView awhv = (AppWidgetHostView) cell; 3097 AppWidgetResizeFrame.updateWidgetSizeRanges(awhv, mLauncher, resultSpan[0], 3098 resultSpan[1]); 3099 } 3100 3101 if (getScreenIdForPageIndex(mCurrentPage) != screenId && !hasMovedIntoHotseat) { 3102 snapScreen = getPageIndexForScreenId(screenId); 3103 snapToPage(snapScreen); 3104 } 3105 3106 if (foundCell) { 3107 final ItemInfo info = (ItemInfo) cell.getTag(); 3108 if (hasMovedLayouts) { 3109 // Reparent the view 3110 CellLayout parentCell = getParentCellLayoutForView(cell); 3111 if (parentCell != null) { 3112 parentCell.removeView(cell); 3113 } else if (LauncherAppState.isDogfoodBuild()) { 3114 throw new NullPointerException("mDragInfo.cell has null parent"); 3115 } 3116 addInScreen(cell, container, screenId, mTargetCell[0], mTargetCell[1], 3117 info.spanX, info.spanY); 3118 } 3119 3120 // update the item's position after drop 3121 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) cell.getLayoutParams(); 3122 lp.cellX = lp.tmpCellX = mTargetCell[0]; 3123 lp.cellY = lp.tmpCellY = mTargetCell[1]; 3124 lp.cellHSpan = item.spanX; 3125 lp.cellVSpan = item.spanY; 3126 lp.isLockedToGrid = true; 3127 3128 if (container != LauncherSettings.Favorites.CONTAINER_HOTSEAT && 3129 cell instanceof LauncherAppWidgetHostView) { 3130 final CellLayout cellLayout = dropTargetLayout; 3131 // We post this call so that the widget has a chance to be placed 3132 // in its final location 3133 3134 final LauncherAppWidgetHostView hostView = (LauncherAppWidgetHostView) cell; 3135 AppWidgetProviderInfo pinfo = hostView.getAppWidgetInfo(); 3136 if (pinfo != null && 3137 pinfo.resizeMode != AppWidgetProviderInfo.RESIZE_NONE) { 3138 final Runnable addResizeFrame = new Runnable() { 3139 public void run() { 3140 DragLayer dragLayer = mLauncher.getDragLayer(); 3141 dragLayer.addResizeFrame(info, hostView, cellLayout); 3142 } 3143 }; 3144 resizeRunnable = (new Runnable() { 3145 public void run() { 3146 if (!isPageMoving()) { 3147 addResizeFrame.run(); 3148 } else { 3149 mDelayedResizeRunnable = addResizeFrame; 3150 } 3151 } 3152 }); 3153 } 3154 } 3155 3156 LauncherModel.modifyItemInDatabase(mLauncher, info, container, screenId, lp.cellX, 3157 lp.cellY, item.spanX, item.spanY); 3158 } else { 3159 // If we can't find a drop location, we return the item to its original position 3160 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) cell.getLayoutParams(); 3161 mTargetCell[0] = lp.cellX; 3162 mTargetCell[1] = lp.cellY; 3163 CellLayout layout = (CellLayout) cell.getParent().getParent(); 3164 layout.markCellsAsOccupiedForView(cell); 3165 } 3166 } 3167 3168 final CellLayout parent = (CellLayout) cell.getParent().getParent(); 3169 final Runnable finalResizeRunnable = resizeRunnable; 3170 // Prepare it to be animated into its new position 3171 // This must be called after the view has been re-parented 3172 final Runnable onCompleteRunnable = new Runnable() { 3173 @Override 3174 public void run() { 3175 mAnimatingViewIntoPlace = false; 3176 updateChildrenLayersEnabled(false); 3177 if (finalResizeRunnable != null) { 3178 finalResizeRunnable.run(); 3179 } 3180 } 3181 }; 3182 mAnimatingViewIntoPlace = true; 3183 if (d.dragView.hasDrawn()) { 3184 final ItemInfo info = (ItemInfo) cell.getTag(); 3185 if (info.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET) { 3186 int animationType = resizeOnDrop ? ANIMATE_INTO_POSITION_AND_RESIZE : 3187 ANIMATE_INTO_POSITION_AND_DISAPPEAR; 3188 animateWidgetDrop(info, parent, d.dragView, 3189 onCompleteRunnable, animationType, cell, false); 3190 } else { 3191 int duration = snapScreen < 0 ? -1 : ADJACENT_SCREEN_DROP_DURATION; 3192 mLauncher.getDragLayer().animateViewIntoPosition(d.dragView, cell, duration, 3193 onCompleteRunnable, this); 3194 } 3195 } else { 3196 d.deferDragViewCleanupPostAnimation = false; 3197 cell.setVisibility(VISIBLE); 3198 } 3199 parent.onDropChild(cell); 3200 } 3201 } 3202 3203 public void setFinalScrollForPageChange(int pageIndex) { 3204 CellLayout cl = (CellLayout) getChildAt(pageIndex); 3205 if (cl != null) { 3206 mSavedScrollX = getScrollX(); 3207 mSavedTranslationX = cl.getTranslationX(); 3208 mSavedRotationY = cl.getRotationY(); 3209 final int newX = getScrollForPage(pageIndex); 3210 setScrollX(newX); 3211 cl.setTranslationX(0f); 3212 cl.setRotationY(0f); 3213 } 3214 } 3215 3216 public void resetFinalScrollForPageChange(int pageIndex) { 3217 if (pageIndex >= 0) { 3218 CellLayout cl = (CellLayout) getChildAt(pageIndex); 3219 setScrollX(mSavedScrollX); 3220 cl.setTranslationX(mSavedTranslationX); 3221 cl.setRotationY(mSavedRotationY); 3222 } 3223 } 3224 3225 public void getViewLocationRelativeToSelf(View v, int[] location) { 3226 getLocationInWindow(location); 3227 int x = location[0]; 3228 int y = location[1]; 3229 3230 v.getLocationInWindow(location); 3231 int vX = location[0]; 3232 int vY = location[1]; 3233 3234 location[0] = vX - x; 3235 location[1] = vY - y; 3236 } 3237 3238 public void onDragEnter(DragObject d) { 3239 mDragEnforcer.onDragEnter(); 3240 mCreateUserFolderOnDrop = false; 3241 mAddToExistingFolderOnDrop = false; 3242 3243 mDropToLayout = null; 3244 CellLayout layout = getCurrentDropLayout(); 3245 setCurrentDropLayout(layout); 3246 setCurrentDragOverlappingLayout(layout); 3247 3248 if (!workspaceInModalState()) { 3249 mLauncher.getDragLayer().showPageHints(); 3250 } 3251 } 3252 3253 /** Return a rect that has the cellWidth/cellHeight (left, top), and 3254 * widthGap/heightGap (right, bottom) */ 3255 static Rect getCellLayoutMetrics(Launcher launcher, int orientation) { 3256 LauncherAppState app = LauncherAppState.getInstance(); 3257 DeviceProfile grid = app.getDynamicGrid().getDeviceProfile(); 3258 3259 Display display = launcher.getWindowManager().getDefaultDisplay(); 3260 Point smallestSize = new Point(); 3261 Point largestSize = new Point(); 3262 display.getCurrentSizeRange(smallestSize, largestSize); 3263 int countX = (int) grid.numColumns; 3264 int countY = (int) grid.numRows; 3265 if (orientation == CellLayout.LANDSCAPE) { 3266 if (mLandscapeCellLayoutMetrics == null) { 3267 Rect padding = grid.getWorkspacePadding(CellLayout.LANDSCAPE); 3268 int width = largestSize.x - padding.left - padding.right; 3269 int height = smallestSize.y - padding.top - padding.bottom; 3270 mLandscapeCellLayoutMetrics = new Rect(); 3271 mLandscapeCellLayoutMetrics.set( 3272 grid.calculateCellWidth(width, countX), 3273 grid.calculateCellHeight(height, countY), 0, 0); 3274 } 3275 return mLandscapeCellLayoutMetrics; 3276 } else if (orientation == CellLayout.PORTRAIT) { 3277 if (mPortraitCellLayoutMetrics == null) { 3278 Rect padding = grid.getWorkspacePadding(CellLayout.PORTRAIT); 3279 int width = smallestSize.x - padding.left - padding.right; 3280 int height = largestSize.y - padding.top - padding.bottom; 3281 mPortraitCellLayoutMetrics = new Rect(); 3282 mPortraitCellLayoutMetrics.set( 3283 grid.calculateCellWidth(width, countX), 3284 grid.calculateCellHeight(height, countY), 0, 0); 3285 } 3286 return mPortraitCellLayoutMetrics; 3287 } 3288 return null; 3289 } 3290 3291 public void onDragExit(DragObject d) { 3292 mDragEnforcer.onDragExit(); 3293 3294 // Here we store the final page that will be dropped to, if the workspace in fact 3295 // receives the drop 3296 if (mInScrollArea) { 3297 if (isPageMoving()) { 3298 // If the user drops while the page is scrolling, we should use that page as the 3299 // destination instead of the page that is being hovered over. 3300 mDropToLayout = (CellLayout) getPageAt(getNextPage()); 3301 } else { 3302 mDropToLayout = mDragOverlappingLayout; 3303 } 3304 } else { 3305 mDropToLayout = mDragTargetLayout; 3306 } 3307 3308 if (mDragMode == DRAG_MODE_CREATE_FOLDER) { 3309 mCreateUserFolderOnDrop = true; 3310 } else if (mDragMode == DRAG_MODE_ADD_TO_FOLDER) { 3311 mAddToExistingFolderOnDrop = true; 3312 } 3313 3314 // Reset the scroll area and previous drag target 3315 onResetScrollArea(); 3316 setCurrentDropLayout(null); 3317 setCurrentDragOverlappingLayout(null); 3318 3319 mSpringLoadedDragController.cancel(); 3320 3321 if (!mIsPageMoving) { 3322 hideOutlines(); 3323 } 3324 mLauncher.getDragLayer().hidePageHints(); 3325 } 3326 3327 void setCurrentDropLayout(CellLayout layout) { 3328 if (mDragTargetLayout != null) { 3329 mDragTargetLayout.revertTempState(); 3330 mDragTargetLayout.onDragExit(); 3331 } 3332 mDragTargetLayout = layout; 3333 if (mDragTargetLayout != null) { 3334 mDragTargetLayout.onDragEnter(); 3335 } 3336 cleanupReorder(true); 3337 cleanupFolderCreation(); 3338 setCurrentDropOverCell(-1, -1); 3339 } 3340 3341 void setCurrentDragOverlappingLayout(CellLayout layout) { 3342 if (mDragOverlappingLayout != null) { 3343 mDragOverlappingLayout.setIsDragOverlapping(false); 3344 } 3345 mDragOverlappingLayout = layout; 3346 if (mDragOverlappingLayout != null) { 3347 mDragOverlappingLayout.setIsDragOverlapping(true); 3348 } 3349 invalidate(); 3350 } 3351 3352 void setCurrentDropOverCell(int x, int y) { 3353 if (x != mDragOverX || y != mDragOverY) { 3354 mDragOverX = x; 3355 mDragOverY = y; 3356 setDragMode(DRAG_MODE_NONE); 3357 } 3358 } 3359 3360 void setDragMode(int dragMode) { 3361 if (dragMode != mDragMode) { 3362 if (dragMode == DRAG_MODE_NONE) { 3363 cleanupAddToFolder(); 3364 // We don't want to cancel the re-order alarm every time the target cell changes 3365 // as this feels to slow / unresponsive. 3366 cleanupReorder(false); 3367 cleanupFolderCreation(); 3368 } else if (dragMode == DRAG_MODE_ADD_TO_FOLDER) { 3369 cleanupReorder(true); 3370 cleanupFolderCreation(); 3371 } else if (dragMode == DRAG_MODE_CREATE_FOLDER) { 3372 cleanupAddToFolder(); 3373 cleanupReorder(true); 3374 } else if (dragMode == DRAG_MODE_REORDER) { 3375 cleanupAddToFolder(); 3376 cleanupFolderCreation(); 3377 } 3378 mDragMode = dragMode; 3379 } 3380 } 3381 3382 private void cleanupFolderCreation() { 3383 if (mDragFolderRingAnimator != null) { 3384 mDragFolderRingAnimator.animateToNaturalState(); 3385 mDragFolderRingAnimator = null; 3386 } 3387 mFolderCreationAlarm.setOnAlarmListener(null); 3388 mFolderCreationAlarm.cancelAlarm(); 3389 } 3390 3391 private void cleanupAddToFolder() { 3392 if (mDragOverFolderIcon != null) { 3393 mDragOverFolderIcon.onDragExit(null); 3394 mDragOverFolderIcon = null; 3395 } 3396 } 3397 3398 private void cleanupReorder(boolean cancelAlarm) { 3399 // Any pending reorders are canceled 3400 if (cancelAlarm) { 3401 mReorderAlarm.cancelAlarm(); 3402 } 3403 mLastReorderX = -1; 3404 mLastReorderY = -1; 3405 } 3406 3407 /* 3408 * 3409 * Convert the 2D coordinate xy from the parent View's coordinate space to this CellLayout's 3410 * coordinate space. The argument xy is modified with the return result. 3411 * 3412 * if cachedInverseMatrix is not null, this method will just use that matrix instead of 3413 * computing it itself; we use this to avoid redundant matrix inversions in 3414 * findMatchingPageForDragOver 3415 * 3416 */ 3417 void mapPointFromSelfToChild(View v, float[] xy, Matrix cachedInverseMatrix) { 3418 xy[0] = xy[0] - v.getLeft(); 3419 xy[1] = xy[1] - v.getTop(); 3420 } 3421 3422 boolean isPointInSelfOverHotseat(int x, int y, Rect r) { 3423 if (r == null) { 3424 r = new Rect(); 3425 } 3426 mTempPt[0] = x; 3427 mTempPt[1] = y; 3428 mLauncher.getDragLayer().getDescendantCoordRelativeToSelf(this, mTempPt, true); 3429 3430 LauncherAppState app = LauncherAppState.getInstance(); 3431 DeviceProfile grid = app.getDynamicGrid().getDeviceProfile(); 3432 r = grid.getHotseatRect(); 3433 if (r.contains(mTempPt[0], mTempPt[1])) { 3434 return true; 3435 } 3436 return false; 3437 } 3438 3439 void mapPointFromSelfToHotseatLayout(Hotseat hotseat, float[] xy) { 3440 mTempPt[0] = (int) xy[0]; 3441 mTempPt[1] = (int) xy[1]; 3442 mLauncher.getDragLayer().getDescendantCoordRelativeToSelf(this, mTempPt, true); 3443 mLauncher.getDragLayer().mapCoordInSelfToDescendent(hotseat.getLayout(), mTempPt); 3444 3445 xy[0] = mTempPt[0]; 3446 xy[1] = mTempPt[1]; 3447 } 3448 3449 /* 3450 * 3451 * Convert the 2D coordinate xy from this CellLayout's coordinate space to 3452 * the parent View's coordinate space. The argument xy is modified with the return result. 3453 * 3454 */ 3455 void mapPointFromChildToSelf(View v, float[] xy) { 3456 xy[0] += v.getLeft(); 3457 xy[1] += v.getTop(); 3458 } 3459 3460 static private float squaredDistance(float[] point1, float[] point2) { 3461 float distanceX = point1[0] - point2[0]; 3462 float distanceY = point2[1] - point2[1]; 3463 return distanceX * distanceX + distanceY * distanceY; 3464 } 3465 3466 /* 3467 * 3468 * This method returns the CellLayout that is currently being dragged to. In order to drag 3469 * to a CellLayout, either the touch point must be directly over the CellLayout, or as a second 3470 * strategy, we see if the dragView is overlapping any CellLayout and choose the closest one 3471 * 3472 * Return null if no CellLayout is currently being dragged over 3473 * 3474 */ 3475 private CellLayout findMatchingPageForDragOver( 3476 DragView dragView, float originX, float originY, boolean exact) { 3477 // We loop through all the screens (ie CellLayouts) and see which ones overlap 3478 // with the item being dragged and then choose the one that's closest to the touch point 3479 final int screenCount = getChildCount(); 3480 CellLayout bestMatchingScreen = null; 3481 float smallestDistSoFar = Float.MAX_VALUE; 3482 3483 for (int i = 0; i < screenCount; i++) { 3484 // The custom content screen is not a valid drag over option 3485 if (mScreenOrder.get(i) == CUSTOM_CONTENT_SCREEN_ID) { 3486 continue; 3487 } 3488 3489 CellLayout cl = (CellLayout) getChildAt(i); 3490 3491 final float[] touchXy = {originX, originY}; 3492 // Transform the touch coordinates to the CellLayout's local coordinates 3493 // If the touch point is within the bounds of the cell layout, we can return immediately 3494 cl.getMatrix().invert(mTempInverseMatrix); 3495 mapPointFromSelfToChild(cl, touchXy, mTempInverseMatrix); 3496 3497 if (touchXy[0] >= 0 && touchXy[0] <= cl.getWidth() && 3498 touchXy[1] >= 0 && touchXy[1] <= cl.getHeight()) { 3499 return cl; 3500 } 3501 3502 if (!exact) { 3503 // Get the center of the cell layout in screen coordinates 3504 final float[] cellLayoutCenter = mTempCellLayoutCenterCoordinates; 3505 cellLayoutCenter[0] = cl.getWidth()/2; 3506 cellLayoutCenter[1] = cl.getHeight()/2; 3507 mapPointFromChildToSelf(cl, cellLayoutCenter); 3508 3509 touchXy[0] = originX; 3510 touchXy[1] = originY; 3511 3512 // Calculate the distance between the center of the CellLayout 3513 // and the touch point 3514 float dist = squaredDistance(touchXy, cellLayoutCenter); 3515 3516 if (dist < smallestDistSoFar) { 3517 smallestDistSoFar = dist; 3518 bestMatchingScreen = cl; 3519 } 3520 } 3521 } 3522 return bestMatchingScreen; 3523 } 3524 3525 // This is used to compute the visual center of the dragView. This point is then 3526 // used to visualize drop locations and determine where to drop an item. The idea is that 3527 // the visual center represents the user's interpretation of where the item is, and hence 3528 // is the appropriate point to use when determining drop location. 3529 private float[] getDragViewVisualCenter(int x, int y, int xOffset, int yOffset, 3530 DragView dragView, float[] recycle) { 3531 float res[]; 3532 if (recycle == null) { 3533 res = new float[2]; 3534 } else { 3535 res = recycle; 3536 } 3537 3538 // First off, the drag view has been shifted in a way that is not represented in the 3539 // x and y values or the x/yOffsets. Here we account for that shift. 3540 x += getResources().getDimensionPixelSize(R.dimen.dragViewOffsetX); 3541 y += getResources().getDimensionPixelSize(R.dimen.dragViewOffsetY); 3542 3543 // These represent the visual top and left of drag view if a dragRect was provided. 3544 // If a dragRect was not provided, then they correspond to the actual view left and 3545 // top, as the dragRect is in that case taken to be the entire dragView. 3546 // R.dimen.dragViewOffsetY. 3547 int left = x - xOffset; 3548 int top = y - yOffset; 3549 3550 // In order to find the visual center, we shift by half the dragRect 3551 res[0] = left + dragView.getDragRegion().width() / 2; 3552 res[1] = top + dragView.getDragRegion().height() / 2; 3553 3554 return res; 3555 } 3556 3557 private boolean isDragWidget(DragObject d) { 3558 return (d.dragInfo instanceof LauncherAppWidgetInfo || 3559 d.dragInfo instanceof PendingAddWidgetInfo); 3560 } 3561 private boolean isExternalDragWidget(DragObject d) { 3562 return d.dragSource != this && isDragWidget(d); 3563 } 3564 3565 public void onDragOver(DragObject d) { 3566 // Skip drag over events while we are dragging over side pages 3567 if (mInScrollArea || !transitionStateShouldAllowDrop()) return; 3568 3569 Rect r = new Rect(); 3570 CellLayout layout = null; 3571 ItemInfo item = (ItemInfo) d.dragInfo; 3572 if (item == null) { 3573 if (LauncherAppState.isDogfoodBuild()) { 3574 throw new NullPointerException("DragObject has null info"); 3575 } 3576 return; 3577 } 3578 3579 // Ensure that we have proper spans for the item that we are dropping 3580 if (item.spanX < 0 || item.spanY < 0) throw new RuntimeException("Improper spans found"); 3581 mDragViewVisualCenter = getDragViewVisualCenter(d.x, d.y, d.xOffset, d.yOffset, 3582 d.dragView, mDragViewVisualCenter); 3583 3584 final View child = (mDragInfo == null) ? null : mDragInfo.cell; 3585 // Identify whether we have dragged over a side page 3586 if (workspaceInModalState()) { 3587 if (mLauncher.getHotseat() != null && !isExternalDragWidget(d)) { 3588 if (isPointInSelfOverHotseat(d.x, d.y, r)) { 3589 layout = mLauncher.getHotseat().getLayout(); 3590 } 3591 } 3592 if (layout == null) { 3593 layout = findMatchingPageForDragOver(d.dragView, d.x, d.y, false); 3594 } 3595 if (layout != mDragTargetLayout) { 3596 setCurrentDropLayout(layout); 3597 setCurrentDragOverlappingLayout(layout); 3598 3599 boolean isInSpringLoadedMode = (mState == State.SPRING_LOADED); 3600 if (isInSpringLoadedMode) { 3601 if (mLauncher.isHotseatLayout(layout)) { 3602 mSpringLoadedDragController.cancel(); 3603 } else { 3604 mSpringLoadedDragController.setAlarm(mDragTargetLayout); 3605 } 3606 } 3607 } 3608 } else { 3609 // Test to see if we are over the hotseat otherwise just use the current page 3610 if (mLauncher.getHotseat() != null && !isDragWidget(d)) { 3611 if (isPointInSelfOverHotseat(d.x, d.y, r)) { 3612 layout = mLauncher.getHotseat().getLayout(); 3613 } 3614 } 3615 if (layout == null) { 3616 layout = getCurrentDropLayout(); 3617 } 3618 if (layout != mDragTargetLayout) { 3619 setCurrentDropLayout(layout); 3620 setCurrentDragOverlappingLayout(layout); 3621 } 3622 } 3623 3624 // Handle the drag over 3625 if (mDragTargetLayout != null) { 3626 // We want the point to be mapped to the dragTarget. 3627 if (mLauncher.isHotseatLayout(mDragTargetLayout)) { 3628 mapPointFromSelfToHotseatLayout(mLauncher.getHotseat(), mDragViewVisualCenter); 3629 } else { 3630 mapPointFromSelfToChild(mDragTargetLayout, mDragViewVisualCenter, null); 3631 } 3632 3633 ItemInfo info = (ItemInfo) d.dragInfo; 3634 3635 int minSpanX = item.spanX; 3636 int minSpanY = item.spanY; 3637 if (item.minSpanX > 0 && item.minSpanY > 0) { 3638 minSpanX = item.minSpanX; 3639 minSpanY = item.minSpanY; 3640 } 3641 3642 mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], 3643 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, 3644 mDragTargetLayout, mTargetCell); 3645 int reorderX = mTargetCell[0]; 3646 int reorderY = mTargetCell[1]; 3647 3648 setCurrentDropOverCell(mTargetCell[0], mTargetCell[1]); 3649 3650 float targetCellDistance = mDragTargetLayout.getDistanceFromCell( 3651 mDragViewVisualCenter[0], mDragViewVisualCenter[1], mTargetCell); 3652 3653 final View dragOverView = mDragTargetLayout.getChildAt(mTargetCell[0], 3654 mTargetCell[1]); 3655 3656 manageFolderFeedback(info, mDragTargetLayout, mTargetCell, 3657 targetCellDistance, dragOverView); 3658 3659 boolean nearestDropOccupied = mDragTargetLayout.isNearestDropLocationOccupied((int) 3660 mDragViewVisualCenter[0], (int) mDragViewVisualCenter[1], item.spanX, 3661 item.spanY, child, mTargetCell); 3662 3663 if (!nearestDropOccupied) { 3664 mDragTargetLayout.visualizeDropLocation(child, mDragOutline, 3665 (int) mDragViewVisualCenter[0], (int) mDragViewVisualCenter[1], 3666 mTargetCell[0], mTargetCell[1], item.spanX, item.spanY, false, 3667 d.dragView.getDragVisualizeOffset(), d.dragView.getDragRegion()); 3668 } else if ((mDragMode == DRAG_MODE_NONE || mDragMode == DRAG_MODE_REORDER) 3669 && !mReorderAlarm.alarmPending() && (mLastReorderX != reorderX || 3670 mLastReorderY != reorderY)) { 3671 3672 int[] resultSpan = new int[2]; 3673 mDragTargetLayout.performReorder((int) mDragViewVisualCenter[0], 3674 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, item.spanX, item.spanY, 3675 child, mTargetCell, resultSpan, CellLayout.MODE_SHOW_REORDER_HINT); 3676 3677 // Otherwise, if we aren't adding to or creating a folder and there's no pending 3678 // reorder, then we schedule a reorder 3679 ReorderAlarmListener listener = new ReorderAlarmListener(mDragViewVisualCenter, 3680 minSpanX, minSpanY, item.spanX, item.spanY, d.dragView, child); 3681 mReorderAlarm.setOnAlarmListener(listener); 3682 mReorderAlarm.setAlarm(REORDER_TIMEOUT); 3683 } 3684 3685 if (mDragMode == DRAG_MODE_CREATE_FOLDER || mDragMode == DRAG_MODE_ADD_TO_FOLDER || 3686 !nearestDropOccupied) { 3687 if (mDragTargetLayout != null) { 3688 mDragTargetLayout.revertTempState(); 3689 } 3690 } 3691 } 3692 } 3693 3694 private void manageFolderFeedback(ItemInfo info, CellLayout targetLayout, 3695 int[] targetCell, float distance, View dragOverView) { 3696 boolean userFolderPending = willCreateUserFolder(info, targetLayout, targetCell, distance, 3697 false); 3698 3699 if (mDragMode == DRAG_MODE_NONE && userFolderPending && 3700 !mFolderCreationAlarm.alarmPending()) { 3701 mFolderCreationAlarm.setOnAlarmListener(new 3702 FolderCreationAlarmListener(targetLayout, targetCell[0], targetCell[1])); 3703 mFolderCreationAlarm.setAlarm(FOLDER_CREATION_TIMEOUT); 3704 return; 3705 } 3706 3707 boolean willAddToFolder = 3708 willAddToExistingUserFolder(info, targetLayout, targetCell, distance); 3709 3710 if (willAddToFolder && mDragMode == DRAG_MODE_NONE) { 3711 mDragOverFolderIcon = ((FolderIcon) dragOverView); 3712 mDragOverFolderIcon.onDragEnter(info); 3713 if (targetLayout != null) { 3714 targetLayout.clearDragOutlines(); 3715 } 3716 setDragMode(DRAG_MODE_ADD_TO_FOLDER); 3717 return; 3718 } 3719 3720 if (mDragMode == DRAG_MODE_ADD_TO_FOLDER && !willAddToFolder) { 3721 setDragMode(DRAG_MODE_NONE); 3722 } 3723 if (mDragMode == DRAG_MODE_CREATE_FOLDER && !userFolderPending) { 3724 setDragMode(DRAG_MODE_NONE); 3725 } 3726 3727 return; 3728 } 3729 3730 class FolderCreationAlarmListener implements OnAlarmListener { 3731 CellLayout layout; 3732 int cellX; 3733 int cellY; 3734 3735 public FolderCreationAlarmListener(CellLayout layout, int cellX, int cellY) { 3736 this.layout = layout; 3737 this.cellX = cellX; 3738 this.cellY = cellY; 3739 } 3740 3741 public void onAlarm(Alarm alarm) { 3742 if (mDragFolderRingAnimator != null) { 3743 // This shouldn't happen ever, but just in case, make sure we clean up the mess. 3744 mDragFolderRingAnimator.animateToNaturalState(); 3745 } 3746 mDragFolderRingAnimator = new FolderRingAnimator(mLauncher, null); 3747 mDragFolderRingAnimator.setCell(cellX, cellY); 3748 mDragFolderRingAnimator.setCellLayout(layout); 3749 mDragFolderRingAnimator.animateToAcceptState(); 3750 layout.showFolderAccept(mDragFolderRingAnimator); 3751 layout.clearDragOutlines(); 3752 setDragMode(DRAG_MODE_CREATE_FOLDER); 3753 } 3754 } 3755 3756 class ReorderAlarmListener implements OnAlarmListener { 3757 float[] dragViewCenter; 3758 int minSpanX, minSpanY, spanX, spanY; 3759 DragView dragView; 3760 View child; 3761 3762 public ReorderAlarmListener(float[] dragViewCenter, int minSpanX, int minSpanY, int spanX, 3763 int spanY, DragView dragView, View child) { 3764 this.dragViewCenter = dragViewCenter; 3765 this.minSpanX = minSpanX; 3766 this.minSpanY = minSpanY; 3767 this.spanX = spanX; 3768 this.spanY = spanY; 3769 this.child = child; 3770 this.dragView = dragView; 3771 } 3772 3773 public void onAlarm(Alarm alarm) { 3774 int[] resultSpan = new int[2]; 3775 mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], 3776 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, mDragTargetLayout, 3777 mTargetCell); 3778 mLastReorderX = mTargetCell[0]; 3779 mLastReorderY = mTargetCell[1]; 3780 3781 mTargetCell = mDragTargetLayout.performReorder((int) mDragViewVisualCenter[0], 3782 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, spanX, spanY, 3783 child, mTargetCell, resultSpan, CellLayout.MODE_DRAG_OVER); 3784 3785 if (mTargetCell[0] < 0 || mTargetCell[1] < 0) { 3786 mDragTargetLayout.revertTempState(); 3787 } else { 3788 setDragMode(DRAG_MODE_REORDER); 3789 } 3790 3791 boolean resize = resultSpan[0] != spanX || resultSpan[1] != spanY; 3792 mDragTargetLayout.visualizeDropLocation(child, mDragOutline, 3793 (int) mDragViewVisualCenter[0], (int) mDragViewVisualCenter[1], 3794 mTargetCell[0], mTargetCell[1], resultSpan[0], resultSpan[1], resize, 3795 dragView.getDragVisualizeOffset(), dragView.getDragRegion()); 3796 } 3797 } 3798 3799 @Override 3800 public void getHitRectRelativeToDragLayer(Rect outRect) { 3801 // We want the workspace to have the whole area of the display (it will find the correct 3802 // cell layout to drop to in the existing drag/drop logic. 3803 mLauncher.getDragLayer().getDescendantRectRelativeToSelf(this, outRect); 3804 } 3805 3806 /** 3807 * Add the item specified by dragInfo to the given layout. 3808 * @return true if successful 3809 */ 3810 public boolean addExternalItemToScreen(ItemInfo dragInfo, CellLayout layout) { 3811 if (layout.findCellForSpan(mTempEstimate, dragInfo.spanX, dragInfo.spanY)) { 3812 onDropExternal(dragInfo.dropPos, (ItemInfo) dragInfo, (CellLayout) layout, false); 3813 return true; 3814 } 3815 mLauncher.showOutOfSpaceMessage(mLauncher.isHotseatLayout(layout)); 3816 return false; 3817 } 3818 3819 private void onDropExternal(int[] touchXY, Object dragInfo, 3820 CellLayout cellLayout, boolean insertAtFirst) { 3821 onDropExternal(touchXY, dragInfo, cellLayout, insertAtFirst, null); 3822 } 3823 3824 /** 3825 * Drop an item that didn't originate on one of the workspace screens. 3826 * It may have come from Launcher (e.g. from all apps or customize), or it may have 3827 * come from another app altogether. 3828 * 3829 * NOTE: This can also be called when we are outside of a drag event, when we want 3830 * to add an item to one of the workspace screens. 3831 */ 3832 private void onDropExternal(final int[] touchXY, final Object dragInfo, 3833 final CellLayout cellLayout, boolean insertAtFirst, DragObject d) { 3834 final Runnable exitSpringLoadedRunnable = new Runnable() { 3835 @Override 3836 public void run() { 3837 mLauncher.exitSpringLoadedDragModeDelayed(true, 3838 Launcher.EXIT_SPRINGLOADED_MODE_SHORT_TIMEOUT, null); 3839 } 3840 }; 3841 3842 ItemInfo info = (ItemInfo) dragInfo; 3843 int spanX = info.spanX; 3844 int spanY = info.spanY; 3845 if (mDragInfo != null) { 3846 spanX = mDragInfo.spanX; 3847 spanY = mDragInfo.spanY; 3848 } 3849 3850 final long container = mLauncher.isHotseatLayout(cellLayout) ? 3851 LauncherSettings.Favorites.CONTAINER_HOTSEAT : 3852 LauncherSettings.Favorites.CONTAINER_DESKTOP; 3853 final long screenId = getIdForScreen(cellLayout); 3854 if (!mLauncher.isHotseatLayout(cellLayout) 3855 && screenId != getScreenIdForPageIndex(mCurrentPage) 3856 && mState != State.SPRING_LOADED) { 3857 snapToScreenId(screenId, null); 3858 } 3859 3860 if (info instanceof PendingAddItemInfo) { 3861 final PendingAddItemInfo pendingInfo = (PendingAddItemInfo) dragInfo; 3862 3863 boolean findNearestVacantCell = true; 3864 if (pendingInfo.itemType == LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT) { 3865 mTargetCell = findNearestArea((int) touchXY[0], (int) touchXY[1], spanX, spanY, 3866 cellLayout, mTargetCell); 3867 float distance = cellLayout.getDistanceFromCell(mDragViewVisualCenter[0], 3868 mDragViewVisualCenter[1], mTargetCell); 3869 if (willCreateUserFolder((ItemInfo) d.dragInfo, cellLayout, mTargetCell, 3870 distance, true) || willAddToExistingUserFolder((ItemInfo) d.dragInfo, 3871 cellLayout, mTargetCell, distance)) { 3872 findNearestVacantCell = false; 3873 } 3874 } 3875 3876 final ItemInfo item = (ItemInfo) d.dragInfo; 3877 boolean updateWidgetSize = false; 3878 if (findNearestVacantCell) { 3879 int minSpanX = item.spanX; 3880 int minSpanY = item.spanY; 3881 if (item.minSpanX > 0 && item.minSpanY > 0) { 3882 minSpanX = item.minSpanX; 3883 minSpanY = item.minSpanY; 3884 } 3885 int[] resultSpan = new int[2]; 3886 mTargetCell = cellLayout.performReorder((int) mDragViewVisualCenter[0], 3887 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, info.spanX, info.spanY, 3888 null, mTargetCell, resultSpan, CellLayout.MODE_ON_DROP_EXTERNAL); 3889 3890 if (resultSpan[0] != item.spanX || resultSpan[1] != item.spanY) { 3891 updateWidgetSize = true; 3892 } 3893 item.spanX = resultSpan[0]; 3894 item.spanY = resultSpan[1]; 3895 } 3896 3897 Runnable onAnimationCompleteRunnable = new Runnable() { 3898 @Override 3899 public void run() { 3900 // Normally removeExtraEmptyScreen is called in Workspace#onDragEnd, but when 3901 // adding an item that may not be dropped right away (due to a config activity) 3902 // we defer the removal until the activity returns. 3903 deferRemoveExtraEmptyScreen(); 3904 3905 // When dragging and dropping from customization tray, we deal with creating 3906 // widgets/shortcuts/folders in a slightly different way 3907 switch (pendingInfo.itemType) { 3908 case LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET: 3909 int span[] = new int[2]; 3910 span[0] = item.spanX; 3911 span[1] = item.spanY; 3912 mLauncher.addAppWidgetFromDrop((PendingAddWidgetInfo) pendingInfo, 3913 container, screenId, mTargetCell, span, null); 3914 break; 3915 case LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT: 3916 mLauncher.processShortcutFromDrop(pendingInfo.componentName, 3917 container, screenId, mTargetCell, null); 3918 break; 3919 default: 3920 throw new IllegalStateException("Unknown item type: " + 3921 pendingInfo.itemType); 3922 } 3923 } 3924 }; 3925 View finalView = pendingInfo.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET 3926 ? ((PendingAddWidgetInfo) pendingInfo).boundWidget : null; 3927 3928 if (finalView instanceof AppWidgetHostView && updateWidgetSize) { 3929 AppWidgetHostView awhv = (AppWidgetHostView) finalView; 3930 AppWidgetResizeFrame.updateWidgetSizeRanges(awhv, mLauncher, item.spanX, 3931 item.spanY); 3932 } 3933 3934 int animationStyle = ANIMATE_INTO_POSITION_AND_DISAPPEAR; 3935 if (pendingInfo.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET && 3936 ((PendingAddWidgetInfo) pendingInfo).info.configure != null) { 3937 animationStyle = ANIMATE_INTO_POSITION_AND_REMAIN; 3938 } 3939 animateWidgetDrop(info, cellLayout, d.dragView, onAnimationCompleteRunnable, 3940 animationStyle, finalView, true); 3941 } else { 3942 // This is for other drag/drop cases, like dragging from All Apps 3943 View view = null; 3944 3945 switch (info.itemType) { 3946 case LauncherSettings.Favorites.ITEM_TYPE_APPLICATION: 3947 case LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT: 3948 if (info.container == NO_ID && info instanceof AppInfo) { 3949 // Came from all apps -- make a copy 3950 info = new ShortcutInfo((AppInfo) info); 3951 } 3952 view = mLauncher.createShortcut(R.layout.application, cellLayout, 3953 (ShortcutInfo) info); 3954 break; 3955 case LauncherSettings.Favorites.ITEM_TYPE_FOLDER: 3956 view = FolderIcon.fromXml(R.layout.folder_icon, mLauncher, cellLayout, 3957 (FolderInfo) info, mIconCache); 3958 break; 3959 default: 3960 throw new IllegalStateException("Unknown item type: " + info.itemType); 3961 } 3962 3963 // First we find the cell nearest to point at which the item is 3964 // dropped, without any consideration to whether there is an item there. 3965 if (touchXY != null) { 3966 mTargetCell = findNearestArea((int) touchXY[0], (int) touchXY[1], spanX, spanY, 3967 cellLayout, mTargetCell); 3968 float distance = cellLayout.getDistanceFromCell(mDragViewVisualCenter[0], 3969 mDragViewVisualCenter[1], mTargetCell); 3970 d.postAnimationRunnable = exitSpringLoadedRunnable; 3971 if (createUserFolderIfNecessary(view, container, cellLayout, mTargetCell, distance, 3972 true, d.dragView, d.postAnimationRunnable)) { 3973 // The folder cling isn't flexible enough to be shown in non-default workspace 3974 // positions. Also if they are creating a folder, we assume they don't need to 3975 // see the cling. 3976 mLauncher.markFolderClingDismissedIfNecessary(); 3977 return; 3978 } 3979 if (addToExistingFolderIfNecessary(view, cellLayout, mTargetCell, distance, d, 3980 true)) { 3981 return; 3982 } 3983 } 3984 3985 if (touchXY != null) { 3986 // when dragging and dropping, just find the closest free spot 3987 mTargetCell = cellLayout.performReorder((int) mDragViewVisualCenter[0], 3988 (int) mDragViewVisualCenter[1], 1, 1, 1, 1, 3989 null, mTargetCell, null, CellLayout.MODE_ON_DROP_EXTERNAL); 3990 } else { 3991 cellLayout.findCellForSpan(mTargetCell, 1, 1); 3992 } 3993 // Add the item to DB before adding to screen ensures that the container and other 3994 // values of the info is properly updated. 3995 LauncherModel.addOrMoveItemInDatabase(mLauncher, info, container, screenId, 3996 mTargetCell[0], mTargetCell[1]); 3997 3998 addInScreen(view, container, screenId, mTargetCell[0], mTargetCell[1], info.spanX, 3999 info.spanY, insertAtFirst); 4000 cellLayout.onDropChild(view); 4001 cellLayout.getShortcutsAndWidgets().measureChild(view); 4002 4003 if (d.dragView != null) { 4004 // We wrap the animation call in the temporary set and reset of the current 4005 // cellLayout to its final transform -- this means we animate the drag view to 4006 // the correct final location. 4007 setFinalTransitionTransform(cellLayout); 4008 mLauncher.getDragLayer().animateViewIntoPosition(d.dragView, view, 4009 exitSpringLoadedRunnable, this); 4010 resetTransitionTransform(cellLayout); 4011 } 4012 } 4013 } 4014 4015 public Bitmap createWidgetBitmap(ItemInfo widgetInfo, View layout) { 4016 int[] unScaledSize = mLauncher.getWorkspace().estimateItemSize(widgetInfo.spanX, 4017 widgetInfo.spanY, widgetInfo, false); 4018 int visibility = layout.getVisibility(); 4019 layout.setVisibility(VISIBLE); 4020 4021 int width = MeasureSpec.makeMeasureSpec(unScaledSize[0], MeasureSpec.EXACTLY); 4022 int height = MeasureSpec.makeMeasureSpec(unScaledSize[1], MeasureSpec.EXACTLY); 4023 Bitmap b = Bitmap.createBitmap(unScaledSize[0], unScaledSize[1], 4024 Bitmap.Config.ARGB_8888); 4025 Canvas c = new Canvas(b); 4026 4027 layout.measure(width, height); 4028 layout.layout(0, 0, unScaledSize[0], unScaledSize[1]); 4029 layout.draw(c); 4030 c.setBitmap(null); 4031 layout.setVisibility(visibility); 4032 return b; 4033 } 4034 4035 private void getFinalPositionForDropAnimation(int[] loc, float[] scaleXY, 4036 DragView dragView, CellLayout layout, ItemInfo info, int[] targetCell, 4037 boolean external, boolean scale) { 4038 // Now we animate the dragView, (ie. the widget or shortcut preview) into its final 4039 // location and size on the home screen. 4040 int spanX = info.spanX; 4041 int spanY = info.spanY; 4042 4043 Rect r = estimateItemPosition(layout, info, targetCell[0], targetCell[1], spanX, spanY); 4044 loc[0] = r.left; 4045 loc[1] = r.top; 4046 4047 setFinalTransitionTransform(layout); 4048 float cellLayoutScale = 4049 mLauncher.getDragLayer().getDescendantCoordRelativeToSelf(layout, loc, true); 4050 resetTransitionTransform(layout); 4051 4052 float dragViewScaleX; 4053 float dragViewScaleY; 4054 if (scale) { 4055 dragViewScaleX = (1.0f * r.width()) / dragView.getMeasuredWidth(); 4056 dragViewScaleY = (1.0f * r.height()) / dragView.getMeasuredHeight(); 4057 } else { 4058 dragViewScaleX = 1f; 4059 dragViewScaleY = 1f; 4060 } 4061 4062 // The animation will scale the dragView about its center, so we need to center about 4063 // the final location. 4064 loc[0] -= (dragView.getMeasuredWidth() - cellLayoutScale * r.width()) / 2; 4065 loc[1] -= (dragView.getMeasuredHeight() - cellLayoutScale * r.height()) / 2; 4066 4067 scaleXY[0] = dragViewScaleX * cellLayoutScale; 4068 scaleXY[1] = dragViewScaleY * cellLayoutScale; 4069 } 4070 4071 public void animateWidgetDrop(ItemInfo info, CellLayout cellLayout, DragView dragView, 4072 final Runnable onCompleteRunnable, int animationType, final View finalView, 4073 boolean external) { 4074 Rect from = new Rect(); 4075 mLauncher.getDragLayer().getViewRectRelativeToSelf(dragView, from); 4076 4077 int[] finalPos = new int[2]; 4078 float scaleXY[] = new float[2]; 4079 boolean scalePreview = !(info instanceof PendingAddShortcutInfo); 4080 getFinalPositionForDropAnimation(finalPos, scaleXY, dragView, cellLayout, info, mTargetCell, 4081 external, scalePreview); 4082 4083 Resources res = mLauncher.getResources(); 4084 final int duration = res.getInteger(R.integer.config_dropAnimMaxDuration) - 200; 4085 4086 // In the case where we've prebound the widget, we remove it from the DragLayer 4087 if (finalView instanceof AppWidgetHostView && external) { 4088 Log.d(TAG, "6557954 Animate widget drop, final view is appWidgetHostView"); 4089 mLauncher.getDragLayer().removeView(finalView); 4090 } 4091 if ((animationType == ANIMATE_INTO_POSITION_AND_RESIZE || external) && finalView != null) { 4092 Bitmap crossFadeBitmap = createWidgetBitmap(info, finalView); 4093 dragView.setCrossFadeBitmap(crossFadeBitmap); 4094 dragView.crossFade((int) (duration * 0.8f)); 4095 } else if (info.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET && external) { 4096 scaleXY[0] = scaleXY[1] = Math.min(scaleXY[0], scaleXY[1]); 4097 } 4098 4099 DragLayer dragLayer = mLauncher.getDragLayer(); 4100 if (animationType == CANCEL_TWO_STAGE_WIDGET_DROP_ANIMATION) { 4101 mLauncher.getDragLayer().animateViewIntoPosition(dragView, finalPos, 0f, 0.1f, 0.1f, 4102 DragLayer.ANIMATION_END_DISAPPEAR, onCompleteRunnable, duration); 4103 } else { 4104 int endStyle; 4105 if (animationType == ANIMATE_INTO_POSITION_AND_REMAIN) { 4106 endStyle = DragLayer.ANIMATION_END_REMAIN_VISIBLE; 4107 } else { 4108 endStyle = DragLayer.ANIMATION_END_DISAPPEAR;; 4109 } 4110 4111 Runnable onComplete = new Runnable() { 4112 @Override 4113 public void run() { 4114 if (finalView != null) { 4115 finalView.setVisibility(VISIBLE); 4116 } 4117 if (onCompleteRunnable != null) { 4118 onCompleteRunnable.run(); 4119 } 4120 } 4121 }; 4122 dragLayer.animateViewIntoPosition(dragView, from.left, from.top, finalPos[0], 4123 finalPos[1], 1, 1, 1, scaleXY[0], scaleXY[1], onComplete, endStyle, 4124 duration, this); 4125 } 4126 } 4127 4128 public void setFinalTransitionTransform(CellLayout layout) { 4129 if (isSwitchingState()) { 4130 mCurrentScale = getScaleX(); 4131 setScaleX(mNewScale); 4132 setScaleY(mNewScale); 4133 } 4134 } 4135 public void resetTransitionTransform(CellLayout layout) { 4136 if (isSwitchingState()) { 4137 setScaleX(mCurrentScale); 4138 setScaleY(mCurrentScale); 4139 } 4140 } 4141 4142 /** 4143 * Return the current {@link CellLayout}, correctly picking the destination 4144 * screen while a scroll is in progress. 4145 */ 4146 public CellLayout getCurrentDropLayout() { 4147 return (CellLayout) getChildAt(getNextPage()); 4148 } 4149 4150 /** 4151 * Return the current CellInfo describing our current drag; this method exists 4152 * so that Launcher can sync this object with the correct info when the activity is created/ 4153 * destroyed 4154 * 4155 */ 4156 public CellLayout.CellInfo getDragInfo() { 4157 return mDragInfo; 4158 } 4159 4160 public int getCurrentPageOffsetFromCustomContent() { 4161 return getNextPage() - numCustomPages(); 4162 } 4163 4164 /** 4165 * Calculate the nearest cell where the given object would be dropped. 4166 * 4167 * pixelX and pixelY should be in the coordinate system of layout 4168 */ 4169 private int[] findNearestArea(int pixelX, int pixelY, 4170 int spanX, int spanY, CellLayout layout, int[] recycle) { 4171 return layout.findNearestArea( 4172 pixelX, pixelY, spanX, spanY, recycle); 4173 } 4174 4175 void setup(DragController dragController) { 4176 mSpringLoadedDragController = new SpringLoadedDragController(mLauncher); 4177 mDragController = dragController; 4178 4179 // hardware layers on children are enabled on startup, but should be disabled until 4180 // needed 4181 updateChildrenLayersEnabled(false); 4182 } 4183 4184 /** 4185 * Called at the end of a drag which originated on the workspace. 4186 */ 4187 public void onDropCompleted(final View target, final DragObject d, 4188 final boolean isFlingToDelete, final boolean success) { 4189 if (mDeferDropAfterUninstall) { 4190 mDeferredAction = new Runnable() { 4191 public void run() { 4192 onDropCompleted(target, d, isFlingToDelete, success); 4193 mDeferredAction = null; 4194 } 4195 }; 4196 return; 4197 } 4198 4199 boolean beingCalledAfterUninstall = mDeferredAction != null; 4200 4201 if (success && !(beingCalledAfterUninstall && !mUninstallSuccessful)) { 4202 if (target != this && mDragInfo != null) { 4203 CellLayout parentCell = getParentCellLayoutForView(mDragInfo.cell); 4204 if (parentCell != null) { 4205 parentCell.removeView(mDragInfo.cell); 4206 } else if (LauncherAppState.isDogfoodBuild()) { 4207 throw new NullPointerException("mDragInfo.cell has null parent"); 4208 } 4209 if (mDragInfo.cell instanceof DropTarget) { 4210 mDragController.removeDropTarget((DropTarget) mDragInfo.cell); 4211 } 4212 } 4213 } else if (mDragInfo != null) { 4214 CellLayout cellLayout; 4215 if (mLauncher.isHotseatLayout(target)) { 4216 cellLayout = mLauncher.getHotseat().getLayout(); 4217 } else { 4218 cellLayout = getScreenWithId(mDragInfo.screenId); 4219 } 4220 if (cellLayout == null && LauncherAppState.isDogfoodBuild()) { 4221 throw new RuntimeException("Invalid state: cellLayout == null in " 4222 + "Workspace#onDropCompleted. Please file a bug. "); 4223 } 4224 if (cellLayout != null) { 4225 cellLayout.onDropChild(mDragInfo.cell); 4226 } 4227 } 4228 if ((d.cancelled || (beingCalledAfterUninstall && !mUninstallSuccessful)) 4229 && mDragInfo.cell != null) { 4230 mDragInfo.cell.setVisibility(VISIBLE); 4231 } 4232 mDragOutline = null; 4233 mDragInfo = null; 4234 } 4235 4236 public void deferCompleteDropAfterUninstallActivity() { 4237 mDeferDropAfterUninstall = true; 4238 } 4239 4240 /// maybe move this into a smaller part 4241 public void onUninstallActivityReturned(boolean success) { 4242 mDeferDropAfterUninstall = false; 4243 mUninstallSuccessful = success; 4244 if (mDeferredAction != null) { 4245 mDeferredAction.run(); 4246 } 4247 } 4248 4249 void updateItemLocationsInDatabase(CellLayout cl) { 4250 int count = cl.getShortcutsAndWidgets().getChildCount(); 4251 4252 long screenId = getIdForScreen(cl); 4253 int container = Favorites.CONTAINER_DESKTOP; 4254 4255 if (mLauncher.isHotseatLayout(cl)) { 4256 screenId = -1; 4257 container = Favorites.CONTAINER_HOTSEAT; 4258 } 4259 4260 for (int i = 0; i < count; i++) { 4261 View v = cl.getShortcutsAndWidgets().getChildAt(i); 4262 ItemInfo info = (ItemInfo) v.getTag(); 4263 // Null check required as the AllApps button doesn't have an item info 4264 if (info != null && info.requiresDbUpdate) { 4265 info.requiresDbUpdate = false; 4266 LauncherModel.modifyItemInDatabase(mLauncher, info, container, screenId, info.cellX, 4267 info.cellY, info.spanX, info.spanY); 4268 } 4269 } 4270 } 4271 4272 ArrayList<ComponentName> getUniqueComponents(boolean stripDuplicates, ArrayList<ComponentName> duplicates) { 4273 ArrayList<ComponentName> uniqueIntents = new ArrayList<ComponentName>(); 4274 getUniqueIntents((CellLayout) mLauncher.getHotseat().getLayout(), uniqueIntents, duplicates, false); 4275 int count = getChildCount(); 4276 for (int i = 0; i < count; i++) { 4277 CellLayout cl = (CellLayout) getChildAt(i); 4278 getUniqueIntents(cl, uniqueIntents, duplicates, false); 4279 } 4280 return uniqueIntents; 4281 } 4282 4283 void getUniqueIntents(CellLayout cl, ArrayList<ComponentName> uniqueIntents, 4284 ArrayList<ComponentName> duplicates, boolean stripDuplicates) { 4285 int count = cl.getShortcutsAndWidgets().getChildCount(); 4286 4287 ArrayList<View> children = new ArrayList<View>(); 4288 for (int i = 0; i < count; i++) { 4289 View v = cl.getShortcutsAndWidgets().getChildAt(i); 4290 children.add(v); 4291 } 4292 4293 for (int i = 0; i < count; i++) { 4294 View v = children.get(i); 4295 ItemInfo info = (ItemInfo) v.getTag(); 4296 // Null check required as the AllApps button doesn't have an item info 4297 if (info instanceof ShortcutInfo) { 4298 ShortcutInfo si = (ShortcutInfo) info; 4299 ComponentName cn = si.intent.getComponent(); 4300 4301 Uri dataUri = si.intent.getData(); 4302 // If dataUri is not null / empty or if this component isn't one that would 4303 // have previously showed up in the AllApps list, then this is a widget-type 4304 // shortcut, so ignore it. 4305 if (dataUri != null && !dataUri.equals(Uri.EMPTY)) { 4306 continue; 4307 } 4308 4309 if (!uniqueIntents.contains(cn)) { 4310 uniqueIntents.add(cn); 4311 } else { 4312 if (stripDuplicates) { 4313 cl.removeViewInLayout(v); 4314 LauncherModel.deleteItemFromDatabase(mLauncher, si); 4315 } 4316 if (duplicates != null) { 4317 duplicates.add(cn); 4318 } 4319 } 4320 } 4321 if (v instanceof FolderIcon) { 4322 FolderIcon fi = (FolderIcon) v; 4323 ArrayList<View> items = fi.getFolder().getItemsInReadingOrder(); 4324 for (int j = 0; j < items.size(); j++) { 4325 if (items.get(j).getTag() instanceof ShortcutInfo) { 4326 ShortcutInfo si = (ShortcutInfo) items.get(j).getTag(); 4327 ComponentName cn = si.intent.getComponent(); 4328 4329 Uri dataUri = si.intent.getData(); 4330 // If dataUri is not null / empty or if this component isn't one that would 4331 // have previously showed up in the AllApps list, then this is a widget-type 4332 // shortcut, so ignore it. 4333 if (dataUri != null && !dataUri.equals(Uri.EMPTY)) { 4334 continue; 4335 } 4336 4337 if (!uniqueIntents.contains(cn)) { 4338 uniqueIntents.add(cn); 4339 } else { 4340 if (stripDuplicates) { 4341 fi.getFolderInfo().remove(si); 4342 LauncherModel.deleteItemFromDatabase(mLauncher, si); 4343 } 4344 if (duplicates != null) { 4345 duplicates.add(cn); 4346 } 4347 } 4348 } 4349 } 4350 } 4351 } 4352 } 4353 4354 void saveWorkspaceToDb() { 4355 saveWorkspaceScreenToDb((CellLayout) mLauncher.getHotseat().getLayout()); 4356 int count = getChildCount(); 4357 for (int i = 0; i < count; i++) { 4358 CellLayout cl = (CellLayout) getChildAt(i); 4359 saveWorkspaceScreenToDb(cl); 4360 } 4361 } 4362 4363 void saveWorkspaceScreenToDb(CellLayout cl) { 4364 int count = cl.getShortcutsAndWidgets().getChildCount(); 4365 4366 long screenId = getIdForScreen(cl); 4367 int container = Favorites.CONTAINER_DESKTOP; 4368 4369 Hotseat hotseat = mLauncher.getHotseat(); 4370 if (mLauncher.isHotseatLayout(cl)) { 4371 screenId = -1; 4372 container = Favorites.CONTAINER_HOTSEAT; 4373 } 4374 4375 for (int i = 0; i < count; i++) { 4376 View v = cl.getShortcutsAndWidgets().getChildAt(i); 4377 ItemInfo info = (ItemInfo) v.getTag(); 4378 // Null check required as the AllApps button doesn't have an item info 4379 if (info != null) { 4380 int cellX = info.cellX; 4381 int cellY = info.cellY; 4382 if (container == Favorites.CONTAINER_HOTSEAT) { 4383 cellX = hotseat.getCellXFromOrder((int) info.screenId); 4384 cellY = hotseat.getCellYFromOrder((int) info.screenId); 4385 } 4386 LauncherModel.addItemToDatabase(mLauncher, info, container, screenId, cellX, 4387 cellY, false); 4388 } 4389 if (v instanceof FolderIcon) { 4390 FolderIcon fi = (FolderIcon) v; 4391 fi.getFolder().addItemLocationsInDatabase(); 4392 } 4393 } 4394 } 4395 4396 @Override 4397 public float getIntrinsicIconScaleFactor() { 4398 return 1f; 4399 } 4400 4401 @Override 4402 public boolean supportsFlingToDelete() { 4403 return true; 4404 } 4405 4406 @Override 4407 public boolean supportsAppInfoDropTarget() { 4408 return false; 4409 } 4410 4411 @Override 4412 public boolean supportsDeleteDropTarget() { 4413 return true; 4414 } 4415 4416 @Override 4417 public void onFlingToDelete(DragObject d, int x, int y, PointF vec) { 4418 // Do nothing 4419 } 4420 4421 @Override 4422 public void onFlingToDeleteCompleted() { 4423 // Do nothing 4424 } 4425 4426 public boolean isDropEnabled() { 4427 return true; 4428 } 4429 4430 @Override 4431 protected void onRestoreInstanceState(Parcelable state) { 4432 super.onRestoreInstanceState(state); 4433 Launcher.setScreen(mCurrentPage); 4434 } 4435 4436 @Override 4437 protected void dispatchRestoreInstanceState(SparseArray<Parcelable> container) { 4438 // We don't dispatch restoreInstanceState to our children using this code path. 4439 // Some pages will be restored immediately as their items are bound immediately, and 4440 // others we will need to wait until after their items are bound. 4441 mSavedStates = container; 4442 } 4443 4444 public void restoreInstanceStateForChild(int child) { 4445 if (mSavedStates != null) { 4446 mRestoredPages.add(child); 4447 CellLayout cl = (CellLayout) getChildAt(child); 4448 if (cl != null) { 4449 cl.restoreInstanceState(mSavedStates); 4450 } 4451 } 4452 } 4453 4454 public void restoreInstanceStateForRemainingPages() { 4455 int count = getChildCount(); 4456 for (int i = 0; i < count; i++) { 4457 if (!mRestoredPages.contains(i)) { 4458 restoreInstanceStateForChild(i); 4459 } 4460 } 4461 mRestoredPages.clear(); 4462 mSavedStates = null; 4463 } 4464 4465 @Override 4466 public void scrollLeft() { 4467 if (!workspaceInModalState() && !mIsSwitchingState) { 4468 super.scrollLeft(); 4469 } 4470 Folder openFolder = getOpenFolder(); 4471 if (openFolder != null) { 4472 openFolder.completeDragExit(); 4473 } 4474 } 4475 4476 @Override 4477 public void scrollRight() { 4478 if (!workspaceInModalState() && !mIsSwitchingState) { 4479 super.scrollRight(); 4480 } 4481 Folder openFolder = getOpenFolder(); 4482 if (openFolder != null) { 4483 openFolder.completeDragExit(); 4484 } 4485 } 4486 4487 @Override 4488 public boolean onEnterScrollArea(int x, int y, int direction) { 4489 // Ignore the scroll area if we are dragging over the hot seat 4490 boolean isPortrait = !LauncherAppState.isScreenLandscape(getContext()); 4491 if (mLauncher.getHotseat() != null && isPortrait) { 4492 Rect r = new Rect(); 4493 mLauncher.getHotseat().getHitRect(r); 4494 if (r.contains(x, y)) { 4495 return false; 4496 } 4497 } 4498 4499 boolean result = false; 4500 if (!workspaceInModalState() && !mIsSwitchingState && getOpenFolder() == null) { 4501 mInScrollArea = true; 4502 4503 final int page = getNextPage() + 4504 (direction == DragController.SCROLL_LEFT ? -1 : 1); 4505 // We always want to exit the current layout to ensure parity of enter / exit 4506 setCurrentDropLayout(null); 4507 4508 if (0 <= page && page < getChildCount()) { 4509 // Ensure that we are not dragging over to the custom content screen 4510 if (getScreenIdForPageIndex(page) == CUSTOM_CONTENT_SCREEN_ID) { 4511 return false; 4512 } 4513 4514 CellLayout layout = (CellLayout) getChildAt(page); 4515 setCurrentDragOverlappingLayout(layout); 4516 4517 // Workspace is responsible for drawing the edge glow on adjacent pages, 4518 // so we need to redraw the workspace when this may have changed. 4519 invalidate(); 4520 result = true; 4521 } 4522 } 4523 return result; 4524 } 4525 4526 @Override 4527 public boolean onExitScrollArea() { 4528 boolean result = false; 4529 if (mInScrollArea) { 4530 invalidate(); 4531 CellLayout layout = getCurrentDropLayout(); 4532 setCurrentDropLayout(layout); 4533 setCurrentDragOverlappingLayout(layout); 4534 4535 result = true; 4536 mInScrollArea = false; 4537 } 4538 return result; 4539 } 4540 4541 private void onResetScrollArea() { 4542 setCurrentDragOverlappingLayout(null); 4543 mInScrollArea = false; 4544 } 4545 4546 /** 4547 * Returns a specific CellLayout 4548 */ 4549 CellLayout getParentCellLayoutForView(View v) { 4550 ArrayList<CellLayout> layouts = getWorkspaceAndHotseatCellLayouts(); 4551 for (CellLayout layout : layouts) { 4552 if (layout.getShortcutsAndWidgets().indexOfChild(v) > -1) { 4553 return layout; 4554 } 4555 } 4556 return null; 4557 } 4558 4559 /** 4560 * Returns a list of all the CellLayouts in the workspace. 4561 */ 4562 ArrayList<CellLayout> getWorkspaceAndHotseatCellLayouts() { 4563 ArrayList<CellLayout> layouts = new ArrayList<CellLayout>(); 4564 int screenCount = getChildCount(); 4565 for (int screen = 0; screen < screenCount; screen++) { 4566 layouts.add(((CellLayout) getChildAt(screen))); 4567 } 4568 if (mLauncher.getHotseat() != null) { 4569 layouts.add(mLauncher.getHotseat().getLayout()); 4570 } 4571 return layouts; 4572 } 4573 4574 /** 4575 * We should only use this to search for specific children. Do not use this method to modify 4576 * ShortcutsAndWidgetsContainer directly. Includes ShortcutAndWidgetContainers from 4577 * the hotseat and workspace pages 4578 */ 4579 ArrayList<ShortcutAndWidgetContainer> getAllShortcutAndWidgetContainers() { 4580 ArrayList<ShortcutAndWidgetContainer> childrenLayouts = 4581 new ArrayList<ShortcutAndWidgetContainer>(); 4582 int screenCount = getChildCount(); 4583 for (int screen = 0; screen < screenCount; screen++) { 4584 childrenLayouts.add(((CellLayout) getChildAt(screen)).getShortcutsAndWidgets()); 4585 } 4586 if (mLauncher.getHotseat() != null) { 4587 childrenLayouts.add(mLauncher.getHotseat().getLayout().getShortcutsAndWidgets()); 4588 } 4589 return childrenLayouts; 4590 } 4591 4592 public Folder getFolderForTag(final Object tag) { 4593 return (Folder) getFirstMatch(new ItemOperator() { 4594 4595 @Override 4596 public boolean evaluate(ItemInfo info, View v, View parent) { 4597 return (v instanceof Folder) && (((Folder) v).getInfo() == tag) 4598 && ((Folder) v).getInfo().opened; 4599 } 4600 }); 4601 } 4602 4603 public View getViewForTag(final Object tag) { 4604 return getFirstMatch(new ItemOperator() { 4605 4606 @Override 4607 public boolean evaluate(ItemInfo info, View v, View parent) { 4608 return info == tag; 4609 } 4610 }); 4611 } 4612 4613 public LauncherAppWidgetHostView getWidgetForAppWidgetId(final int appWidgetId) { 4614 return (LauncherAppWidgetHostView) getFirstMatch(new ItemOperator() { 4615 4616 @Override 4617 public boolean evaluate(ItemInfo info, View v, View parent) { 4618 return (info instanceof LauncherAppWidgetInfo) && 4619 ((LauncherAppWidgetInfo) info).appWidgetId == appWidgetId; 4620 } 4621 }); 4622 } 4623 4624 private View getFirstMatch(final ItemOperator operator) { 4625 final View[] value = new View[1]; 4626 mapOverItems(MAP_NO_RECURSE, new ItemOperator() { 4627 @Override 4628 public boolean evaluate(ItemInfo info, View v, View parent) { 4629 if (operator.evaluate(info, v, parent)) { 4630 value[0] = v; 4631 return true; 4632 } 4633 return false; 4634 } 4635 }); 4636 return value[0]; 4637 } 4638 4639 void clearDropTargets() { 4640 mapOverItems(MAP_NO_RECURSE, new ItemOperator() { 4641 @Override 4642 public boolean evaluate(ItemInfo info, View v, View parent) { 4643 if (v instanceof DropTarget) { 4644 mDragController.removeDropTarget((DropTarget) v); 4645 } 4646 // not done, process all the shortcuts 4647 return false; 4648 } 4649 }); 4650 } 4651 4652 // Removes ALL items that match a given package name, this is usually called when a package 4653 // has been removed and we want to remove all components (widgets, shortcuts, apps) that 4654 // belong to that package. 4655 void removeItemsByPackageName(final ArrayList<String> packages, final UserHandleCompat user) { 4656 final HashSet<String> packageNames = new HashSet<String>(); 4657 packageNames.addAll(packages); 4658 4659 // Filter out all the ItemInfos that this is going to affect 4660 final HashSet<ItemInfo> infos = new HashSet<ItemInfo>(); 4661 final HashSet<ComponentName> cns = new HashSet<ComponentName>(); 4662 ArrayList<CellLayout> cellLayouts = getWorkspaceAndHotseatCellLayouts(); 4663 for (CellLayout layoutParent : cellLayouts) { 4664 ViewGroup layout = layoutParent.getShortcutsAndWidgets(); 4665 int childCount = layout.getChildCount(); 4666 for (int i = 0; i < childCount; ++i) { 4667 View view = layout.getChildAt(i); 4668 infos.add((ItemInfo) view.getTag()); 4669 } 4670 } 4671 LauncherModel.ItemInfoFilter filter = new LauncherModel.ItemInfoFilter() { 4672 @Override 4673 public boolean filterItem(ItemInfo parent, ItemInfo info, 4674 ComponentName cn) { 4675 if (packageNames.contains(cn.getPackageName()) 4676 && info.user.equals(user)) { 4677 cns.add(cn); 4678 return true; 4679 } 4680 return false; 4681 } 4682 }; 4683 LauncherModel.filterItemInfos(infos, filter); 4684 4685 // Remove the affected components 4686 removeItemsByComponentName(cns, user); 4687 } 4688 4689 // Removes items that match the application info specified, when applications are removed 4690 // as a part of an update, this is called to ensure that other widgets and application 4691 // shortcuts are not removed. 4692 void removeItemsByApplicationInfo(final ArrayList<AppInfo> appInfos, UserHandleCompat user) { 4693 // Just create a hash table of all the specific components that this will affect 4694 HashSet<ComponentName> cns = new HashSet<ComponentName>(); 4695 for (AppInfo info : appInfos) { 4696 cns.add(info.componentName); 4697 } 4698 4699 // Remove all the things 4700 removeItemsByComponentName(cns, user); 4701 } 4702 4703 void removeItemsByComponentName(final HashSet<ComponentName> componentNames, 4704 final UserHandleCompat user) { 4705 ArrayList<CellLayout> cellLayouts = getWorkspaceAndHotseatCellLayouts(); 4706 for (final CellLayout layoutParent: cellLayouts) { 4707 final ViewGroup layout = layoutParent.getShortcutsAndWidgets(); 4708 4709 final HashMap<ItemInfo, View> children = new HashMap<ItemInfo, View>(); 4710 for (int j = 0; j < layout.getChildCount(); j++) { 4711 final View view = layout.getChildAt(j); 4712 children.put((ItemInfo) view.getTag(), view); 4713 } 4714 4715 final ArrayList<View> childrenToRemove = new ArrayList<View>(); 4716 final HashMap<FolderInfo, ArrayList<ShortcutInfo>> folderAppsToRemove = 4717 new HashMap<FolderInfo, ArrayList<ShortcutInfo>>(); 4718 LauncherModel.ItemInfoFilter filter = new LauncherModel.ItemInfoFilter() { 4719 @Override 4720 public boolean filterItem(ItemInfo parent, ItemInfo info, 4721 ComponentName cn) { 4722 if (parent instanceof FolderInfo) { 4723 if (componentNames.contains(cn) && info.user.equals(user)) { 4724 FolderInfo folder = (FolderInfo) parent; 4725 ArrayList<ShortcutInfo> appsToRemove; 4726 if (folderAppsToRemove.containsKey(folder)) { 4727 appsToRemove = folderAppsToRemove.get(folder); 4728 } else { 4729 appsToRemove = new ArrayList<ShortcutInfo>(); 4730 folderAppsToRemove.put(folder, appsToRemove); 4731 } 4732 appsToRemove.add((ShortcutInfo) info); 4733 return true; 4734 } 4735 } else { 4736 if (componentNames.contains(cn) && info.user.equals(user)) { 4737 childrenToRemove.add(children.get(info)); 4738 return true; 4739 } 4740 } 4741 return false; 4742 } 4743 }; 4744 LauncherModel.filterItemInfos(children.keySet(), filter); 4745 4746 // Remove all the apps from their folders 4747 for (FolderInfo folder : folderAppsToRemove.keySet()) { 4748 ArrayList<ShortcutInfo> appsToRemove = folderAppsToRemove.get(folder); 4749 for (ShortcutInfo info : appsToRemove) { 4750 folder.remove(info); 4751 } 4752 } 4753 4754 // Remove all the other children 4755 for (View child : childrenToRemove) { 4756 // Note: We can not remove the view directly from CellLayoutChildren as this 4757 // does not re-mark the spaces as unoccupied. 4758 layoutParent.removeViewInLayout(child); 4759 if (child instanceof DropTarget) { 4760 mDragController.removeDropTarget((DropTarget) child); 4761 } 4762 } 4763 4764 if (childrenToRemove.size() > 0) { 4765 layout.requestLayout(); 4766 layout.invalidate(); 4767 } 4768 } 4769 4770 // Strip all the empty screens 4771 stripEmptyScreens(); 4772 } 4773 4774 private void updateShortcut(HashMap<ComponentName, AppInfo> appsMap, ItemInfo info, 4775 View child) { 4776 ComponentName cn = info.getIntent().getComponent(); 4777 if (info.getRestoredIntent() != null) { 4778 cn = info.getRestoredIntent().getComponent(); 4779 } 4780 if (cn != null) { 4781 AppInfo appInfo = appsMap.get(cn); 4782 if ((appInfo != null) && LauncherModel.isShortcutInfoUpdateable(info)) { 4783 ShortcutInfo shortcutInfo = (ShortcutInfo) info; 4784 BubbleTextView shortcut = (BubbleTextView) child; 4785 shortcutInfo.restore(); 4786 shortcutInfo.updateIcon(mIconCache); 4787 shortcutInfo.title = appInfo.title.toString(); 4788 shortcutInfo.contentDescription = appInfo.contentDescription; 4789 shortcut.applyFromShortcutInfo(shortcutInfo, mIconCache, true); 4790 } 4791 } 4792 } 4793 4794 interface ItemOperator { 4795 /** 4796 * Process the next itemInfo, possibly with side-effect on {@link ItemOperator#value}. 4797 * 4798 * @param info info for the shortcut 4799 * @param view view for the shortcut 4800 * @param parent containing folder, or null 4801 * @return true if done, false to continue the map 4802 */ 4803 public boolean evaluate(ItemInfo info, View view, View parent); 4804 } 4805 4806 /** 4807 * Map the operator over the shortcuts and widgets, return the first-non-null value. 4808 * 4809 * @param recurse true: iterate over folder children. false: op get the folders themselves. 4810 * @param op the operator to map over the shortcuts 4811 */ 4812 void mapOverItems(boolean recurse, ItemOperator op) { 4813 ArrayList<ShortcutAndWidgetContainer> containers = getAllShortcutAndWidgetContainers(); 4814 final int containerCount = containers.size(); 4815 for (int containerIdx = 0; containerIdx < containerCount; containerIdx++) { 4816 ShortcutAndWidgetContainer container = containers.get(containerIdx); 4817 // map over all the shortcuts on the workspace 4818 final int itemCount = container.getChildCount(); 4819 for (int itemIdx = 0; itemIdx < itemCount; itemIdx++) { 4820 View item = container.getChildAt(itemIdx); 4821 ItemInfo info = (ItemInfo) item.getTag(); 4822 if (recurse && info instanceof FolderInfo && item instanceof FolderIcon) { 4823 FolderIcon folder = (FolderIcon) item; 4824 ArrayList<View> folderChildren = folder.getFolder().getItemsInReadingOrder(); 4825 // map over all the children in the folder 4826 final int childCount = folderChildren.size(); 4827 for (int childIdx = 0; childIdx < childCount; childIdx++) { 4828 View child = folderChildren.get(childIdx); 4829 info = (ItemInfo) child.getTag(); 4830 if (op.evaluate(info, child, folder)) { 4831 return; 4832 } 4833 } 4834 } else { 4835 if (op.evaluate(info, item, null)) { 4836 return; 4837 } 4838 } 4839 } 4840 } 4841 } 4842 4843 void updateShortcutsAndWidgets(ArrayList<AppInfo> apps) { 4844 // Create a map of the apps to test against 4845 final HashMap<ComponentName, AppInfo> appsMap = new HashMap<ComponentName, AppInfo>(); 4846 final HashSet<String> pkgNames = new HashSet<String>(); 4847 for (AppInfo ai : apps) { 4848 appsMap.put(ai.componentName, ai); 4849 pkgNames.add(ai.componentName.getPackageName()); 4850 } 4851 4852 mapOverItems(MAP_RECURSE, new ItemOperator() { 4853 @Override 4854 public boolean evaluate(ItemInfo info, View v, View parent) { 4855 if (info instanceof ShortcutInfo) { 4856 updateShortcut(appsMap, info, v); 4857 if (parent != null) { 4858 parent.invalidate(); 4859 } 4860 } 4861 // process all the shortcuts 4862 return false; 4863 } 4864 }); 4865 4866 restorePendingWidgets(pkgNames); 4867 } 4868 4869 public void removeAbandonedPromise(BubbleTextView abandonedIcon, UserHandleCompat user) { 4870 if (abandonedIcon.getTag() != null && abandonedIcon.getTag() instanceof ShortcutInfo) { 4871 final ShortcutInfo shortcut = (ShortcutInfo) abandonedIcon.getTag(); 4872 if (shortcut.isAbandoned()) { 4873 HashSet<ComponentName> cns = new HashSet<ComponentName>(1); 4874 cns.add(shortcut.getRestoredIntent().getComponent()); 4875 LauncherModel.deleteItemFromDatabase(mLauncher, shortcut); 4876 removeItemsByComponentName(cns, user); 4877 } 4878 } 4879 } 4880 4881 public void updatePackageState(ArrayList<PackageInstallInfo> installInfos) { 4882 HashSet<String> completedPackages = new HashSet<String>(); 4883 4884 for (final PackageInstallInfo installInfo : installInfos) { 4885 mapOverItems(MAP_RECURSE, new ItemOperator() { 4886 @Override 4887 public boolean evaluate(ItemInfo info, View v, View parent) { 4888 if (info instanceof ShortcutInfo 4889 && ((ShortcutInfo) info).isPromiseFor(installInfo.packageName) 4890 && v instanceof BubbleTextView) { 4891 ((ShortcutInfo) info).setProgress(installInfo.progress); 4892 ((ShortcutInfo) info).setState(installInfo.state); 4893 ((BubbleTextView)v).applyState(); 4894 } else if (v instanceof PendingAppWidgetHostView 4895 && info instanceof LauncherAppWidgetInfo 4896 && ((LauncherAppWidgetInfo) info).providerName.getPackageName() 4897 .equals(installInfo.packageName)) { 4898 ((LauncherAppWidgetInfo) info).installProgress = installInfo.progress; 4899 ((PendingAppWidgetHostView) v).applyState(); 4900 } 4901 4902 // process all the shortcuts 4903 return false; 4904 } 4905 }); 4906 4907 if (installInfo.state == ShortcutInfo.PACKAGE_STATE_DEFAULT) { 4908 completedPackages.add(installInfo.packageName); 4909 } 4910 } 4911 4912 if (!completedPackages.isEmpty()) { 4913 restorePendingWidgets(completedPackages); 4914 } 4915 } 4916 4917 private void restorePendingWidgets(final Set<String> installedPackaged) { 4918 final ArrayList<LauncherAppWidgetInfo> changedInfo = new ArrayList<LauncherAppWidgetInfo>(); 4919 4920 // Iterate non recursively as widgets can't be inside a folder. 4921 mapOverItems(MAP_NO_RECURSE, new ItemOperator() { 4922 4923 @Override 4924 public boolean evaluate(ItemInfo info, View v, View parent) { 4925 if (info instanceof LauncherAppWidgetInfo) { 4926 LauncherAppWidgetInfo widgetInfo = (LauncherAppWidgetInfo) info; 4927 if (widgetInfo.hasRestoreFlag(LauncherAppWidgetInfo.FLAG_PROVIDER_NOT_READY) 4928 && installedPackaged.contains(widgetInfo.providerName.getPackageName())) { 4929 4930 changedInfo.add(widgetInfo); 4931 4932 // Remove the provider not ready flag 4933 widgetInfo.restoreStatus &= ~LauncherAppWidgetInfo.FLAG_PROVIDER_NOT_READY; 4934 LauncherModel.updateItemInDatabase(getContext(), widgetInfo); 4935 } 4936 } 4937 // process all the widget 4938 return false; 4939 } 4940 }); 4941 if (!changedInfo.isEmpty()) { 4942 DeferredWidgetRefresh widgetRefresh = new DeferredWidgetRefresh(changedInfo, 4943 mLauncher.getAppWidgetHost()); 4944 if (LauncherModel.findAppWidgetProviderInfoWithComponent(getContext(), 4945 changedInfo.get(0).providerName) != null) { 4946 // Re-inflate the widgets which have changed status 4947 widgetRefresh.run(); 4948 } else { 4949 // widgetRefresh will automatically run when the packages are updated. 4950 } 4951 } 4952 } 4953 4954 private void moveToScreen(int page, boolean animate) { 4955 if (!workspaceInModalState()) { 4956 if (animate) { 4957 snapToPage(page); 4958 } else { 4959 setCurrentPage(page); 4960 } 4961 } 4962 View child = getChildAt(page); 4963 if (child != null) { 4964 child.requestFocus(); 4965 } 4966 } 4967 4968 void moveToDefaultScreen(boolean animate) { 4969 moveToScreen(mDefaultPage, animate); 4970 } 4971 4972 void moveToCustomContentScreen(boolean animate) { 4973 if (hasCustomContent()) { 4974 int ccIndex = getPageIndexForScreenId(CUSTOM_CONTENT_SCREEN_ID); 4975 if (animate) { 4976 snapToPage(ccIndex); 4977 } else { 4978 setCurrentPage(ccIndex); 4979 } 4980 View child = getChildAt(ccIndex); 4981 if (child != null) { 4982 child.requestFocus(); 4983 } 4984 } 4985 exitWidgetResizeMode(); 4986 } 4987 4988 @Override 4989 protected PageIndicator.PageMarkerResources getPageIndicatorMarker(int pageIndex) { 4990 long screenId = getScreenIdForPageIndex(pageIndex); 4991 if (screenId == EXTRA_EMPTY_SCREEN_ID) { 4992 int count = mScreenOrder.size() - numCustomPages(); 4993 if (count > 1) { 4994 return new PageIndicator.PageMarkerResources(R.drawable.ic_pageindicator_current, 4995 R.drawable.ic_pageindicator_add); 4996 } 4997 } 4998 4999 return super.getPageIndicatorMarker(pageIndex); 5000 } 5001 5002 @Override 5003 public void syncPages() { 5004 } 5005 5006 @Override 5007 public void syncPageItems(int page, boolean immediate) { 5008 } 5009 5010 protected String getPageIndicatorDescription() { 5011 String settings = getResources().getString(R.string.settings_button_text); 5012 return getCurrentPageDescription() + ", " + settings; 5013 } 5014 5015 protected String getCurrentPageDescription() { 5016 int page = (mNextPage != INVALID_PAGE) ? mNextPage : mCurrentPage; 5017 int delta = numCustomPages(); 5018 if (hasCustomContent() && getNextPage() == 0) { 5019 return mCustomContentDescription; 5020 } 5021 return String.format(getContext().getString(R.string.workspace_scroll_format), 5022 page + 1 - delta, getChildCount() - delta); 5023 } 5024 5025 public void getLocationInDragLayer(int[] loc) { 5026 mLauncher.getDragLayer().getLocationInDragLayer(this, loc); 5027 } 5028 5029 /** 5030 * Used as a workaround to ensure that the AppWidgetService receives the 5031 * PACKAGE_ADDED broadcast before updating widgets. 5032 */ 5033 private class DeferredWidgetRefresh implements Runnable { 5034 private final ArrayList<LauncherAppWidgetInfo> mInfos; 5035 private final LauncherAppWidgetHost mHost; 5036 private final Handler mHandler; 5037 5038 private boolean mRefreshPending; 5039 5040 public DeferredWidgetRefresh(ArrayList<LauncherAppWidgetInfo> infos, 5041 LauncherAppWidgetHost host) { 5042 mInfos = infos; 5043 mHost = host; 5044 mHandler = new Handler(); 5045 mRefreshPending = true; 5046 5047 mHost.addProviderChangeListener(this); 5048 // Force refresh after 10 seconds, if we don't get the provider changed event. 5049 // This could happen when the provider is no longer available in the app. 5050 mHandler.postDelayed(this, 10000); 5051 } 5052 5053 @Override 5054 public void run() { 5055 mHost.removeProviderChangeListener(this); 5056 mHandler.removeCallbacks(this); 5057 5058 if (!mRefreshPending) { 5059 return; 5060 } 5061 5062 mRefreshPending = false; 5063 5064 for (LauncherAppWidgetInfo info : mInfos) { 5065 if (info.hostView instanceof PendingAppWidgetHostView) { 5066 PendingAppWidgetHostView view = (PendingAppWidgetHostView) info.hostView; 5067 mLauncher.removeAppWidget(info); 5068 5069 CellLayout cl = (CellLayout) view.getParent().getParent(); 5070 // Remove the current widget 5071 cl.removeView(view); 5072 mLauncher.bindAppWidget(info); 5073 } 5074 } 5075 } 5076 } 5077} 5078