Workspace.java revision 65e43032c8962765a3e89826d4312042a03ee3be
1/* 2 * Copyright (C) 2008 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17package com.android.launcher3; 18 19import android.animation.Animator; 20import android.animation.Animator.AnimatorListener; 21import android.animation.AnimatorListenerAdapter; 22import android.animation.AnimatorSet; 23import android.animation.LayoutTransition; 24import android.animation.ObjectAnimator; 25import android.animation.PropertyValuesHolder; 26import android.animation.TimeInterpolator; 27import android.animation.ValueAnimator; 28import android.animation.ValueAnimator.AnimatorUpdateListener; 29import android.app.WallpaperManager; 30import android.appwidget.AppWidgetHostView; 31import android.appwidget.AppWidgetProviderInfo; 32import android.content.ComponentName; 33import android.content.Context; 34import android.content.SharedPreferences; 35import android.content.res.Resources; 36import android.content.res.TypedArray; 37import android.graphics.Bitmap; 38import android.graphics.Canvas; 39import android.graphics.Matrix; 40import android.graphics.Point; 41import android.graphics.PointF; 42import android.graphics.Rect; 43import android.graphics.Region.Op; 44import android.graphics.drawable.Drawable; 45import android.net.Uri; 46import android.os.AsyncTask; 47import android.os.IBinder; 48import android.os.Parcelable; 49import android.support.v4.view.ViewCompat; 50import android.util.AttributeSet; 51import android.util.Log; 52import android.util.SparseArray; 53import android.view.Choreographer; 54import android.view.Display; 55import android.view.MotionEvent; 56import android.view.View; 57import android.view.ViewGroup; 58import android.view.accessibility.AccessibilityManager; 59import android.view.animation.DecelerateInterpolator; 60import android.view.animation.Interpolator; 61import android.widget.TextView; 62 63import com.android.launcher3.FolderIcon.FolderRingAnimator; 64import com.android.launcher3.Launcher.CustomContentCallbacks; 65import com.android.launcher3.LauncherSettings.Favorites; 66 67import java.util.ArrayList; 68import java.util.HashMap; 69import java.util.HashSet; 70import java.util.Iterator; 71 72/** 73 * The workspace is a wide area with a wallpaper and a finite number of pages. 74 * Each page contains a number of icons, folders or widgets the user can 75 * interact with. A workspace is meant to be used with a fixed width only. 76 */ 77public class Workspace extends SmoothPagedView 78 implements DropTarget, DragSource, DragScroller, View.OnTouchListener, 79 DragController.DragListener, LauncherTransitionable, ViewGroup.OnHierarchyChangeListener, 80 Insettable { 81 private static final String TAG = "Launcher.Workspace"; 82 83 // Y rotation to apply to the workspace screens 84 private static final float WORKSPACE_OVERSCROLL_ROTATION = 24f; 85 86 private static final int CHILDREN_OUTLINE_FADE_OUT_DELAY = 0; 87 private static final int CHILDREN_OUTLINE_FADE_OUT_DURATION = 375; 88 private static final int CHILDREN_OUTLINE_FADE_IN_DURATION = 100; 89 90 protected static final int SNAP_OFF_EMPTY_SCREEN_DURATION = 400; 91 protected static final int FADE_EMPTY_SCREEN_DURATION = 150; 92 93 private static final int BACKGROUND_FADE_OUT_DURATION = 350; 94 private static final int ADJACENT_SCREEN_DROP_DURATION = 300; 95 private static final int FLING_THRESHOLD_VELOCITY = 500; 96 97 private static final float ALPHA_CUTOFF_THRESHOLD = 0.01f; 98 99 // These animators are used to fade the children's outlines 100 private ObjectAnimator mChildrenOutlineFadeInAnimation; 101 private ObjectAnimator mChildrenOutlineFadeOutAnimation; 102 private float mChildrenOutlineAlpha = 0; 103 104 // These properties refer to the background protection gradient used for AllApps and Customize 105 private ValueAnimator mBackgroundFadeInAnimation; 106 private ValueAnimator mBackgroundFadeOutAnimation; 107 private Drawable mBackground; 108 boolean mDrawBackground = true; 109 private float mBackgroundAlpha = 0; 110 111 private static final long CUSTOM_CONTENT_GESTURE_DELAY = 200; 112 private long mTouchDownTime = -1; 113 private long mCustomContentShowTime = -1; 114 115 private LayoutTransition mLayoutTransition; 116 private final WallpaperManager mWallpaperManager; 117 private IBinder mWindowToken; 118 119 private int mOriginalDefaultPage; 120 private int mDefaultPage; 121 122 private ShortcutAndWidgetContainer mDragSourceInternal; 123 private static boolean sAccessibilityEnabled; 124 125 // The screen id used for the empty screen always present to the right. 126 private final static long EXTRA_EMPTY_SCREEN_ID = -201; 127 private final static long CUSTOM_CONTENT_SCREEN_ID = -301; 128 129 private HashMap<Long, CellLayout> mWorkspaceScreens = new HashMap<Long, CellLayout>(); 130 private ArrayList<Long> mScreenOrder = new ArrayList<Long>(); 131 132 private Runnable mRemoveEmptyScreenRunnable; 133 134 /** 135 * CellInfo for the cell that is currently being dragged 136 */ 137 private CellLayout.CellInfo mDragInfo; 138 139 /** 140 * Target drop area calculated during last acceptDrop call. 141 */ 142 private int[] mTargetCell = new int[2]; 143 private int mDragOverX = -1; 144 private int mDragOverY = -1; 145 146 static Rect mLandscapeCellLayoutMetrics = null; 147 static Rect mPortraitCellLayoutMetrics = null; 148 149 CustomContentCallbacks mCustomContentCallbacks; 150 boolean mCustomContentShowing; 151 private float mLastCustomContentScrollProgress = -1f; 152 private String mCustomContentDescription = ""; 153 154 /** 155 * The CellLayout that is currently being dragged over 156 */ 157 private CellLayout mDragTargetLayout = null; 158 /** 159 * The CellLayout that we will show as glowing 160 */ 161 private CellLayout mDragOverlappingLayout = null; 162 163 /** 164 * The CellLayout which will be dropped to 165 */ 166 private CellLayout mDropToLayout = null; 167 168 private Launcher mLauncher; 169 private IconCache mIconCache; 170 private DragController mDragController; 171 172 // These are temporary variables to prevent having to allocate a new object just to 173 // return an (x, y) value from helper functions. Do NOT use them to maintain other state. 174 private int[] mTempCell = new int[2]; 175 private int[] mTempPt = new int[2]; 176 private int[] mTempEstimate = new int[2]; 177 private float[] mDragViewVisualCenter = new float[2]; 178 private float[] mTempCellLayoutCenterCoordinates = new float[2]; 179 private Matrix mTempInverseMatrix = new Matrix(); 180 181 private SpringLoadedDragController mSpringLoadedDragController; 182 private float mSpringLoadedShrinkFactor; 183 private float mOverviewModeShrinkFactor; 184 185 // State variable that indicates whether the pages are small (ie when you're 186 // in all apps or customize mode) 187 188 enum State { NORMAL, SPRING_LOADED, SMALL, OVERVIEW}; 189 private State mState = State.NORMAL; 190 private boolean mIsSwitchingState = false; 191 192 boolean mAnimatingViewIntoPlace = false; 193 boolean mIsDragOccuring = false; 194 boolean mChildrenLayersEnabled = true; 195 196 private boolean mStripScreensOnPageStopMoving = false; 197 198 /** Is the user is dragging an item near the edge of a page? */ 199 private boolean mInScrollArea = false; 200 201 private HolographicOutlineHelper mOutlineHelper; 202 private Bitmap mDragOutline = null; 203 private final Rect mTempRect = new Rect(); 204 private final int[] mTempXY = new int[2]; 205 private int[] mTempVisiblePagesRange = new int[2]; 206 private boolean mOverscrollTransformsSet; 207 private float mLastOverscrollPivotX; 208 public static final int DRAG_BITMAP_PADDING = 2; 209 private boolean mWorkspaceFadeInAdjacentScreens; 210 211 WallpaperOffsetInterpolator mWallpaperOffset; 212 private boolean mWallpaperIsLiveWallpaper; 213 private int mNumPagesForWallpaperParallax; 214 private float mLastSetWallpaperOffsetSteps = 0; 215 216 private Runnable mDelayedResizeRunnable; 217 private Runnable mDelayedSnapToPageRunnable; 218 private Point mDisplaySize = new Point(); 219 private int mCameraDistance; 220 221 // Variables relating to the creation of user folders by hovering shortcuts over shortcuts 222 private static final int FOLDER_CREATION_TIMEOUT = 0; 223 public static final int REORDER_TIMEOUT = 350; 224 private final Alarm mFolderCreationAlarm = new Alarm(); 225 private final Alarm mReorderAlarm = new Alarm(); 226 private FolderRingAnimator mDragFolderRingAnimator = null; 227 private FolderIcon mDragOverFolderIcon = null; 228 private boolean mCreateUserFolderOnDrop = false; 229 private boolean mAddToExistingFolderOnDrop = false; 230 private DropTarget.DragEnforcer mDragEnforcer; 231 private float mMaxDistanceForFolderCreation; 232 233 // Variables relating to touch disambiguation (scrolling workspace vs. scrolling a widget) 234 private float mXDown; 235 private float mYDown; 236 final static float START_DAMPING_TOUCH_SLOP_ANGLE = (float) Math.PI / 6; 237 final static float MAX_SWIPE_ANGLE = (float) Math.PI / 3; 238 final static float TOUCH_SLOP_DAMPING_FACTOR = 4; 239 240 // Relating to the animation of items being dropped externally 241 public static final int ANIMATE_INTO_POSITION_AND_DISAPPEAR = 0; 242 public static final int ANIMATE_INTO_POSITION_AND_REMAIN = 1; 243 public static final int ANIMATE_INTO_POSITION_AND_RESIZE = 2; 244 public static final int COMPLETE_TWO_STAGE_WIDGET_DROP_ANIMATION = 3; 245 public static final int CANCEL_TWO_STAGE_WIDGET_DROP_ANIMATION = 4; 246 247 // Related to dragging, folder creation and reordering 248 private static final int DRAG_MODE_NONE = 0; 249 private static final int DRAG_MODE_CREATE_FOLDER = 1; 250 private static final int DRAG_MODE_ADD_TO_FOLDER = 2; 251 private static final int DRAG_MODE_REORDER = 3; 252 private int mDragMode = DRAG_MODE_NONE; 253 private int mLastReorderX = -1; 254 private int mLastReorderY = -1; 255 256 private SparseArray<Parcelable> mSavedStates; 257 private final ArrayList<Integer> mRestoredPages = new ArrayList<Integer>(); 258 259 // These variables are used for storing the initial and final values during workspace animations 260 private int mSavedScrollX; 261 private float mSavedRotationY; 262 private float mSavedTranslationX; 263 264 private float mCurrentScale; 265 private float mNewScale; 266 private float[] mOldBackgroundAlphas; 267 private float[] mOldAlphas; 268 private float[] mNewBackgroundAlphas; 269 private float[] mNewAlphas; 270 private int mLastChildCount = -1; 271 private float mTransitionProgress; 272 273 private Runnable mDeferredAction; 274 private boolean mDeferDropAfterUninstall; 275 private boolean mUninstallSuccessful; 276 277 private final Runnable mBindPages = new Runnable() { 278 @Override 279 public void run() { 280 mLauncher.getModel().bindRemainingSynchronousPages(); 281 } 282 }; 283 284 /** 285 * Used to inflate the Workspace from XML. 286 * 287 * @param context The application's context. 288 * @param attrs The attributes set containing the Workspace's customization values. 289 */ 290 public Workspace(Context context, AttributeSet attrs) { 291 this(context, attrs, 0); 292 } 293 294 /** 295 * Used to inflate the Workspace from XML. 296 * 297 * @param context The application's context. 298 * @param attrs The attributes set containing the Workspace's customization values. 299 * @param defStyle Unused. 300 */ 301 public Workspace(Context context, AttributeSet attrs, int defStyle) { 302 super(context, attrs, defStyle); 303 mContentIsRefreshable = false; 304 305 mOutlineHelper = HolographicOutlineHelper.obtain(context); 306 307 mDragEnforcer = new DropTarget.DragEnforcer(context); 308 // With workspace, data is available straight from the get-go 309 setDataIsReady(); 310 311 mLauncher = (Launcher) context; 312 final Resources res = getResources(); 313 mWorkspaceFadeInAdjacentScreens = LauncherAppState.getInstance().getDynamicGrid(). 314 getDeviceProfile().shouldFadeAdjacentWorkspaceScreens(); 315 mFadeInAdjacentScreens = false; 316 mWallpaperManager = WallpaperManager.getInstance(context); 317 318 LauncherAppState app = LauncherAppState.getInstance(); 319 DeviceProfile grid = app.getDynamicGrid().getDeviceProfile(); 320 TypedArray a = context.obtainStyledAttributes(attrs, 321 R.styleable.Workspace, defStyle, 0); 322 mSpringLoadedShrinkFactor = 323 res.getInteger(R.integer.config_workspaceSpringLoadShrinkPercentage) / 100.0f; 324 mOverviewModeShrinkFactor = grid.getOverviewModeScale(); 325 mCameraDistance = res.getInteger(R.integer.config_cameraDistance); 326 mOriginalDefaultPage = mDefaultPage = a.getInt(R.styleable.Workspace_defaultScreen, 1); 327 a.recycle(); 328 329 setOnHierarchyChangeListener(this); 330 setHapticFeedbackEnabled(false); 331 332 initWorkspace(); 333 334 // Disable multitouch across the workspace/all apps/customize tray 335 setMotionEventSplittingEnabled(true); 336 setImportantForAccessibility(View.IMPORTANT_FOR_ACCESSIBILITY_YES); 337 } 338 339 @Override 340 public void setInsets(Rect insets) { 341 mInsets.set(insets); 342 343 CellLayout customScreen = getScreenWithId(CUSTOM_CONTENT_SCREEN_ID); 344 if (customScreen != null) { 345 View customContent = customScreen.getShortcutsAndWidgets().getChildAt(0); 346 if (customContent instanceof Insettable) { 347 ((Insettable) customContent).setInsets(mInsets); 348 } 349 } 350 } 351 352 // estimate the size of a widget with spans hSpan, vSpan. return MAX_VALUE for each 353 // dimension if unsuccessful 354 public int[] estimateItemSize(int hSpan, int vSpan, 355 ItemInfo itemInfo, boolean springLoaded) { 356 int[] size = new int[2]; 357 if (getChildCount() > 0) { 358 // Use the first non-custom page to estimate the child position 359 CellLayout cl = (CellLayout) getChildAt(numCustomPages()); 360 Rect r = estimateItemPosition(cl, itemInfo, 0, 0, hSpan, vSpan); 361 size[0] = r.width(); 362 size[1] = r.height(); 363 if (springLoaded) { 364 size[0] *= mSpringLoadedShrinkFactor; 365 size[1] *= mSpringLoadedShrinkFactor; 366 } 367 return size; 368 } else { 369 size[0] = Integer.MAX_VALUE; 370 size[1] = Integer.MAX_VALUE; 371 return size; 372 } 373 } 374 375 public Rect estimateItemPosition(CellLayout cl, ItemInfo pendingInfo, 376 int hCell, int vCell, int hSpan, int vSpan) { 377 Rect r = new Rect(); 378 cl.cellToRect(hCell, vCell, hSpan, vSpan, r); 379 return r; 380 } 381 382 public void onDragStart(final DragSource source, Object info, int dragAction) { 383 mIsDragOccuring = true; 384 updateChildrenLayersEnabled(false); 385 mLauncher.lockScreenOrientation(); 386 mLauncher.onInteractionBegin(); 387 setChildrenBackgroundAlphaMultipliers(1f); 388 // Prevent any Un/InstallShortcutReceivers from updating the db while we are dragging 389 InstallShortcutReceiver.enableInstallQueue(); 390 UninstallShortcutReceiver.enableUninstallQueue(); 391 post(new Runnable() { 392 @Override 393 public void run() { 394 if (mIsDragOccuring) { 395 addExtraEmptyScreenOnDrag(); 396 } 397 } 398 }); 399 } 400 401 public void onDragEnd() { 402 mIsDragOccuring = false; 403 updateChildrenLayersEnabled(false); 404 mLauncher.unlockScreenOrientation(false); 405 406 // Re-enable any Un/InstallShortcutReceiver and now process any queued items 407 InstallShortcutReceiver.disableAndFlushInstallQueue(getContext()); 408 UninstallShortcutReceiver.disableAndFlushUninstallQueue(getContext()); 409 410 mDragSourceInternal = null; 411 mLauncher.onInteractionEnd(); 412 } 413 414 /** 415 * Initializes various states for this workspace. 416 */ 417 protected void initWorkspace() { 418 Context context = getContext(); 419 mCurrentPage = mDefaultPage; 420 Launcher.setScreen(mCurrentPage); 421 LauncherAppState app = LauncherAppState.getInstance(); 422 DeviceProfile grid = app.getDynamicGrid().getDeviceProfile(); 423 mIconCache = app.getIconCache(); 424 setWillNotDraw(false); 425 setClipChildren(false); 426 setClipToPadding(false); 427 setChildrenDrawnWithCacheEnabled(true); 428 429 setMinScale(mOverviewModeShrinkFactor); 430 setupLayoutTransition(); 431 432 final Resources res = getResources(); 433 try { 434 mBackground = res.getDrawable(R.drawable.apps_customize_bg); 435 } catch (Resources.NotFoundException e) { 436 // In this case, we will skip drawing background protection 437 } 438 439 mWallpaperOffset = new WallpaperOffsetInterpolator(); 440 Display display = mLauncher.getWindowManager().getDefaultDisplay(); 441 display.getSize(mDisplaySize); 442 443 mMaxDistanceForFolderCreation = (0.55f * grid.iconSizePx); 444 mFlingThresholdVelocity = (int) (FLING_THRESHOLD_VELOCITY * mDensity); 445 446 // Set the wallpaper dimensions when Launcher starts up 447 setWallpaperDimension(); 448 } 449 450 private void setupLayoutTransition() { 451 // We want to show layout transitions when pages are deleted, to close the gap. 452 mLayoutTransition = new LayoutTransition(); 453 mLayoutTransition.enableTransitionType(LayoutTransition.DISAPPEARING); 454 mLayoutTransition.enableTransitionType(LayoutTransition.CHANGE_DISAPPEARING); 455 mLayoutTransition.disableTransitionType(LayoutTransition.APPEARING); 456 mLayoutTransition.disableTransitionType(LayoutTransition.CHANGE_APPEARING); 457 setLayoutTransition(mLayoutTransition); 458 } 459 460 void enableLayoutTransitions() { 461 setLayoutTransition(mLayoutTransition); 462 } 463 void disableLayoutTransitions() { 464 setLayoutTransition(null); 465 } 466 467 @Override 468 protected int getScrollMode() { 469 return SmoothPagedView.X_LARGE_MODE; 470 } 471 472 @Override 473 public void onChildViewAdded(View parent, View child) { 474 if (!(child instanceof CellLayout)) { 475 throw new IllegalArgumentException("A Workspace can only have CellLayout children."); 476 } 477 CellLayout cl = ((CellLayout) child); 478 cl.setOnInterceptTouchListener(this); 479 cl.setClickable(true); 480 cl.setImportantForAccessibility(ViewCompat.IMPORTANT_FOR_ACCESSIBILITY_NO); 481 super.onChildViewAdded(parent, child); 482 } 483 484 protected boolean shouldDrawChild(View child) { 485 final CellLayout cl = (CellLayout) child; 486 return super.shouldDrawChild(child) && 487 (mIsSwitchingState || 488 cl.getShortcutsAndWidgets().getAlpha() > 0 || 489 cl.getBackgroundAlpha() > 0); 490 } 491 492 /** 493 * @return The open folder on the current screen, or null if there is none 494 */ 495 Folder getOpenFolder() { 496 DragLayer dragLayer = mLauncher.getDragLayer(); 497 int count = dragLayer.getChildCount(); 498 for (int i = 0; i < count; i++) { 499 View child = dragLayer.getChildAt(i); 500 if (child instanceof Folder) { 501 Folder folder = (Folder) child; 502 if (folder.getInfo().opened) 503 return folder; 504 } 505 } 506 return null; 507 } 508 509 boolean isTouchActive() { 510 return mTouchState != TOUCH_STATE_REST; 511 } 512 513 public void removeAllWorkspaceScreens() { 514 // Disable all layout transitions before removing all pages to ensure that we don't get the 515 // transition animations competing with us changing the scroll when we add pages or the 516 // custom content screen 517 disableLayoutTransitions(); 518 519 // Since we increment the current page when we call addCustomContentPage via bindScreens 520 // (and other places), we need to adjust the current page back when we clear the pages 521 if (hasCustomContent()) { 522 removeCustomContentPage(); 523 } 524 525 // Remove the pages and clear the screen models 526 removeAllViews(); 527 mScreenOrder.clear(); 528 mWorkspaceScreens.clear(); 529 530 // Re-enable the layout transitions 531 enableLayoutTransitions(); 532 } 533 534 public long insertNewWorkspaceScreenBeforeEmptyScreen(long screenId) { 535 // Find the index to insert this view into. If the empty screen exists, then 536 // insert it before that. 537 int insertIndex = mScreenOrder.indexOf(EXTRA_EMPTY_SCREEN_ID); 538 if (insertIndex < 0) { 539 insertIndex = mScreenOrder.size(); 540 } 541 return insertNewWorkspaceScreen(screenId, insertIndex); 542 } 543 544 public long insertNewWorkspaceScreen(long screenId) { 545 return insertNewWorkspaceScreen(screenId, getChildCount()); 546 } 547 548 public long insertNewWorkspaceScreen(long screenId, int insertIndex) { 549 // Log to disk 550 Launcher.addDumpLog(TAG, "11683562 - insertNewWorkspaceScreen(): " + screenId + 551 " at index: " + insertIndex, true); 552 553 if (mWorkspaceScreens.containsKey(screenId)) { 554 throw new RuntimeException("Screen id " + screenId + " already exists!"); 555 } 556 557 CellLayout newScreen = (CellLayout) 558 mLauncher.getLayoutInflater().inflate(R.layout.workspace_screen, null); 559 560 newScreen.setOnLongClickListener(mLongClickListener); 561 newScreen.setOnClickListener(mLauncher); 562 newScreen.setSoundEffectsEnabled(false); 563 mWorkspaceScreens.put(screenId, newScreen); 564 mScreenOrder.add(insertIndex, screenId); 565 addView(newScreen, insertIndex); 566 return screenId; 567 } 568 569 public void createCustomContentContainer() { 570 CellLayout customScreen = (CellLayout) 571 mLauncher.getLayoutInflater().inflate(R.layout.workspace_screen, null); 572 customScreen.disableBackground(); 573 574 mWorkspaceScreens.put(CUSTOM_CONTENT_SCREEN_ID, customScreen); 575 mScreenOrder.add(0, CUSTOM_CONTENT_SCREEN_ID); 576 577 // We want no padding on the custom content 578 customScreen.setPadding(0, 0, 0, 0); 579 580 addFullScreenPage(customScreen); 581 582 // Ensure that the current page and default page are maintained. 583 mDefaultPage = mOriginalDefaultPage + 1; 584 585 // Update the custom content hint 586 mLauncher.getLauncherClings().updateCustomContentHintVisibility(); 587 if (mRestorePage != INVALID_RESTORE_PAGE) { 588 mRestorePage = mRestorePage + 1; 589 } else { 590 setCurrentPage(getCurrentPage() + 1); 591 } 592 } 593 594 public void removeCustomContentPage() { 595 CellLayout customScreen = getScreenWithId(CUSTOM_CONTENT_SCREEN_ID); 596 if (customScreen == null) { 597 throw new RuntimeException("Expected custom content screen to exist"); 598 } 599 600 mWorkspaceScreens.remove(CUSTOM_CONTENT_SCREEN_ID); 601 mScreenOrder.remove(CUSTOM_CONTENT_SCREEN_ID); 602 removeView(customScreen); 603 604 if (mCustomContentCallbacks != null) { 605 mCustomContentCallbacks.onScrollProgressChanged(0); 606 mCustomContentCallbacks.onHide(); 607 } 608 609 mCustomContentCallbacks = null; 610 611 // Ensure that the current page and default page are maintained. 612 mDefaultPage = mOriginalDefaultPage - 1; 613 614 // Update the custom content hint 615 mLauncher.getLauncherClings().updateCustomContentHintVisibility(); 616 if (mRestorePage != INVALID_RESTORE_PAGE) { 617 mRestorePage = mRestorePage - 1; 618 } else { 619 setCurrentPage(getCurrentPage() - 1); 620 } 621 } 622 623 public void addToCustomContentPage(View customContent, CustomContentCallbacks callbacks, 624 String description) { 625 if (getPageIndexForScreenId(CUSTOM_CONTENT_SCREEN_ID) < 0) { 626 throw new RuntimeException("Expected custom content screen to exist"); 627 } 628 629 // Add the custom content to the full screen custom page 630 CellLayout customScreen = getScreenWithId(CUSTOM_CONTENT_SCREEN_ID); 631 int spanX = customScreen.getCountX(); 632 int spanY = customScreen.getCountY(); 633 CellLayout.LayoutParams lp = new CellLayout.LayoutParams(0, 0, spanX, spanY); 634 lp.canReorder = false; 635 lp.isFullscreen = true; 636 if (customContent instanceof Insettable) { 637 ((Insettable)customContent).setInsets(mInsets); 638 } 639 640 // Verify that the child is removed from any existing parent. 641 if (customContent.getParent() instanceof ViewGroup) { 642 ViewGroup parent = (ViewGroup) customContent.getParent(); 643 parent.removeView(customContent); 644 } 645 customScreen.removeAllViews(); 646 customScreen.addViewToCellLayout(customContent, 0, 0, lp, true); 647 mCustomContentDescription = description; 648 649 mCustomContentCallbacks = callbacks; 650 } 651 652 public void addExtraEmptyScreenOnDrag() { 653 // Log to disk 654 Launcher.addDumpLog(TAG, "11683562 - addExtraEmptyScreenOnDrag()", true); 655 656 boolean lastChildOnScreen = false; 657 boolean childOnFinalScreen = false; 658 659 // Cancel any pending removal of empty screen 660 mRemoveEmptyScreenRunnable = null; 661 662 if (mDragSourceInternal != null) { 663 if (mDragSourceInternal.getChildCount() == 1) { 664 lastChildOnScreen = true; 665 } 666 CellLayout cl = (CellLayout) mDragSourceInternal.getParent(); 667 if (indexOfChild(cl) == getChildCount() - 1) { 668 childOnFinalScreen = true; 669 } 670 } 671 672 // If this is the last item on the final screen 673 if (lastChildOnScreen && childOnFinalScreen) { 674 return; 675 } 676 if (!mWorkspaceScreens.containsKey(EXTRA_EMPTY_SCREEN_ID)) { 677 insertNewWorkspaceScreen(EXTRA_EMPTY_SCREEN_ID); 678 } 679 } 680 681 public boolean addExtraEmptyScreen() { 682 // Log to disk 683 Launcher.addDumpLog(TAG, "11683562 - addExtraEmptyScreen()", true); 684 685 if (!mWorkspaceScreens.containsKey(EXTRA_EMPTY_SCREEN_ID)) { 686 insertNewWorkspaceScreen(EXTRA_EMPTY_SCREEN_ID); 687 return true; 688 } 689 return false; 690 } 691 692 private void convertFinalScreenToEmptyScreenIfNecessary() { 693 // Log to disk 694 Launcher.addDumpLog(TAG, "11683562 - convertFinalScreenToEmptyScreenIfNecessary()", true); 695 696 if (hasExtraEmptyScreen() || mScreenOrder.size() == 0) return; 697 long finalScreenId = mScreenOrder.get(mScreenOrder.size() - 1); 698 699 if (finalScreenId == CUSTOM_CONTENT_SCREEN_ID) return; 700 CellLayout finalScreen = mWorkspaceScreens.get(finalScreenId); 701 702 // If the final screen is empty, convert it to the extra empty screen 703 if (finalScreen.getShortcutsAndWidgets().getChildCount() == 0 && 704 !finalScreen.isDropPending()) { 705 mWorkspaceScreens.remove(finalScreenId); 706 mScreenOrder.remove(finalScreenId); 707 708 // if this is the last non-custom content screen, convert it to the empty screen 709 mWorkspaceScreens.put(EXTRA_EMPTY_SCREEN_ID, finalScreen); 710 mScreenOrder.add(EXTRA_EMPTY_SCREEN_ID); 711 712 // Update the model if we have changed any screens 713 mLauncher.getModel().updateWorkspaceScreenOrder(mLauncher, mScreenOrder); 714 Launcher.addDumpLog(TAG, "11683562 - extra empty screen: " + finalScreenId, true); 715 } 716 } 717 718 public void removeExtraEmptyScreen(final boolean animate, final Runnable onComplete) { 719 removeExtraEmptyScreen(animate, onComplete, 0, false); 720 } 721 722 public void removeExtraEmptyScreen(final boolean animate, final Runnable onComplete, 723 final int delay, final boolean stripEmptyScreens) { 724 // Log to disk 725 Launcher.addDumpLog(TAG, "11683562 - removeExtraEmptyScreen()", true); 726 if (delay > 0) { 727 postDelayed(new Runnable() { 728 @Override 729 public void run() { 730 removeExtraEmptyScreen(animate, onComplete, 0, stripEmptyScreens); 731 } 732 733 }, delay); 734 return; 735 } 736 737 convertFinalScreenToEmptyScreenIfNecessary(); 738 if (hasExtraEmptyScreen()) { 739 int emptyIndex = mScreenOrder.indexOf(EXTRA_EMPTY_SCREEN_ID); 740 if (getNextPage() == emptyIndex) { 741 snapToPage(getNextPage() - 1, SNAP_OFF_EMPTY_SCREEN_DURATION); 742 fadeAndRemoveEmptyScreen(SNAP_OFF_EMPTY_SCREEN_DURATION, FADE_EMPTY_SCREEN_DURATION, 743 onComplete, stripEmptyScreens); 744 } else { 745 fadeAndRemoveEmptyScreen(0, FADE_EMPTY_SCREEN_DURATION, 746 onComplete, stripEmptyScreens); 747 } 748 return; 749 } else if (stripEmptyScreens) { 750 // If we're not going to strip the empty screens after removing 751 // the extra empty screen, do it right away. 752 stripEmptyScreens(); 753 } 754 755 if (onComplete != null) { 756 onComplete.run(); 757 } 758 } 759 760 private void fadeAndRemoveEmptyScreen(int delay, int duration, final Runnable onComplete, 761 final boolean stripEmptyScreens) { 762 // Log to disk 763 // XXX: Do we need to update LM workspace screens below? 764 Launcher.addDumpLog(TAG, "11683562 - fadeAndRemoveEmptyScreen()", true); 765 PropertyValuesHolder alpha = PropertyValuesHolder.ofFloat("alpha", 0f); 766 PropertyValuesHolder bgAlpha = PropertyValuesHolder.ofFloat("backgroundAlpha", 0f); 767 768 final CellLayout cl = mWorkspaceScreens.get(EXTRA_EMPTY_SCREEN_ID); 769 770 mRemoveEmptyScreenRunnable = new Runnable() { 771 @Override 772 public void run() { 773 if (hasExtraEmptyScreen()) { 774 mWorkspaceScreens.remove(EXTRA_EMPTY_SCREEN_ID); 775 mScreenOrder.remove(EXTRA_EMPTY_SCREEN_ID); 776 removeView(cl); 777 if (stripEmptyScreens) { 778 stripEmptyScreens(); 779 } 780 } 781 } 782 }; 783 784 ObjectAnimator oa = ObjectAnimator.ofPropertyValuesHolder(cl, alpha, bgAlpha); 785 oa.setDuration(duration); 786 oa.setStartDelay(delay); 787 oa.addListener(new AnimatorListenerAdapter() { 788 @Override 789 public void onAnimationEnd(Animator animation) { 790 if (mRemoveEmptyScreenRunnable != null) { 791 mRemoveEmptyScreenRunnable.run(); 792 } 793 if (onComplete != null) { 794 onComplete.run(); 795 } 796 } 797 }); 798 oa.start(); 799 } 800 801 public boolean hasExtraEmptyScreen() { 802 int nScreens = getChildCount(); 803 nScreens = nScreens - numCustomPages(); 804 return mWorkspaceScreens.containsKey(EXTRA_EMPTY_SCREEN_ID) && nScreens > 1; 805 } 806 807 public long commitExtraEmptyScreen() { 808 // Log to disk 809 Launcher.addDumpLog(TAG, "11683562 - commitExtraEmptyScreen()", true); 810 811 int index = getPageIndexForScreenId(EXTRA_EMPTY_SCREEN_ID); 812 CellLayout cl = mWorkspaceScreens.get(EXTRA_EMPTY_SCREEN_ID); 813 mWorkspaceScreens.remove(EXTRA_EMPTY_SCREEN_ID); 814 mScreenOrder.remove(EXTRA_EMPTY_SCREEN_ID); 815 816 long newId = LauncherAppState.getLauncherProvider().generateNewScreenId(); 817 mWorkspaceScreens.put(newId, cl); 818 mScreenOrder.add(newId); 819 820 // Update the page indicator marker 821 if (getPageIndicator() != null) { 822 getPageIndicator().updateMarker(index, getPageIndicatorMarker(index)); 823 } 824 825 // Update the model for the new screen 826 mLauncher.getModel().updateWorkspaceScreenOrder(mLauncher, mScreenOrder); 827 828 return newId; 829 } 830 831 public CellLayout getScreenWithId(long screenId) { 832 CellLayout layout = mWorkspaceScreens.get(screenId); 833 return layout; 834 } 835 836 public long getIdForScreen(CellLayout layout) { 837 Iterator<Long> iter = mWorkspaceScreens.keySet().iterator(); 838 while (iter.hasNext()) { 839 long id = iter.next(); 840 if (mWorkspaceScreens.get(id) == layout) { 841 return id; 842 } 843 } 844 return -1; 845 } 846 847 public int getPageIndexForScreenId(long screenId) { 848 return indexOfChild(mWorkspaceScreens.get(screenId)); 849 } 850 851 public long getScreenIdForPageIndex(int index) { 852 if (0 <= index && index < mScreenOrder.size()) { 853 return mScreenOrder.get(index); 854 } 855 return -1; 856 } 857 858 ArrayList<Long> getScreenOrder() { 859 return mScreenOrder; 860 } 861 862 public void stripEmptyScreens() { 863 // Log to disk 864 Launcher.addDumpLog(TAG, "11683562 - stripEmptyScreens()", true); 865 866 if (mLauncher.isWorkspaceLoading()) { 867 // Don't strip empty screens if the workspace is still loading 868 Launcher.addDumpLog(TAG, " - workspace loading, skip", true); 869 return; 870 } 871 872 if (isPageMoving()) { 873 mStripScreensOnPageStopMoving = true; 874 return; 875 } 876 877 int currentPage = getNextPage(); 878 ArrayList<Long> removeScreens = new ArrayList<Long>(); 879 for (Long id: mWorkspaceScreens.keySet()) { 880 CellLayout cl = mWorkspaceScreens.get(id); 881 if (id >= 0 && cl.getShortcutsAndWidgets().getChildCount() == 0) { 882 removeScreens.add(id); 883 } 884 } 885 886 // We enforce at least one page to add new items to. In the case that we remove the last 887 // such screen, we convert the last screen to the empty screen 888 int minScreens = 1 + numCustomPages(); 889 890 int pageShift = 0; 891 for (Long id: removeScreens) { 892 Launcher.addDumpLog(TAG, "11683562 - removing id: " + id, true); 893 CellLayout cl = mWorkspaceScreens.get(id); 894 mWorkspaceScreens.remove(id); 895 mScreenOrder.remove(id); 896 897 if (getChildCount() > minScreens) { 898 if (indexOfChild(cl) < currentPage) { 899 pageShift++; 900 } 901 removeView(cl); 902 } else { 903 // if this is the last non-custom content screen, convert it to the empty screen 904 mRemoveEmptyScreenRunnable = null; 905 mWorkspaceScreens.put(EXTRA_EMPTY_SCREEN_ID, cl); 906 mScreenOrder.add(EXTRA_EMPTY_SCREEN_ID); 907 } 908 } 909 910 if (!removeScreens.isEmpty()) { 911 // Update the model if we have changed any screens 912 mLauncher.getModel().updateWorkspaceScreenOrder(mLauncher, mScreenOrder); 913 } 914 915 if (pageShift >= 0) { 916 setCurrentPage(currentPage - pageShift); 917 } 918 } 919 920 // See implementation for parameter definition. 921 void addInScreen(View child, long container, long screenId, 922 int x, int y, int spanX, int spanY) { 923 addInScreen(child, container, screenId, x, y, spanX, spanY, false, false); 924 } 925 926 // At bind time, we use the rank (screenId) to compute x and y for hotseat items. 927 // See implementation for parameter definition. 928 void addInScreenFromBind(View child, long container, long screenId, int x, int y, 929 int spanX, int spanY) { 930 addInScreen(child, container, screenId, x, y, spanX, spanY, false, true); 931 } 932 933 // See implementation for parameter definition. 934 void addInScreen(View child, long container, long screenId, int x, int y, int spanX, int spanY, 935 boolean insert) { 936 addInScreen(child, container, screenId, x, y, spanX, spanY, insert, false); 937 } 938 939 /** 940 * Adds the specified child in the specified screen. The position and dimension of 941 * the child are defined by x, y, spanX and spanY. 942 * 943 * @param child The child to add in one of the workspace's screens. 944 * @param screenId The screen in which to add the child. 945 * @param x The X position of the child in the screen's grid. 946 * @param y The Y position of the child in the screen's grid. 947 * @param spanX The number of cells spanned horizontally by the child. 948 * @param spanY The number of cells spanned vertically by the child. 949 * @param insert When true, the child is inserted at the beginning of the children list. 950 * @param computeXYFromRank When true, we use the rank (stored in screenId) to compute 951 * the x and y position in which to place hotseat items. Otherwise 952 * we use the x and y position to compute the rank. 953 */ 954 void addInScreen(View child, long container, long screenId, int x, int y, int spanX, int spanY, 955 boolean insert, boolean computeXYFromRank) { 956 if (container == LauncherSettings.Favorites.CONTAINER_DESKTOP) { 957 if (getScreenWithId(screenId) == null) { 958 Log.e(TAG, "Skipping child, screenId " + screenId + " not found"); 959 // DEBUGGING - Print out the stack trace to see where we are adding from 960 new Throwable().printStackTrace(); 961 return; 962 } 963 } 964 if (screenId == EXTRA_EMPTY_SCREEN_ID) { 965 // This should never happen 966 throw new RuntimeException("Screen id should not be EXTRA_EMPTY_SCREEN_ID"); 967 } 968 969 final CellLayout layout; 970 if (container == LauncherSettings.Favorites.CONTAINER_HOTSEAT) { 971 layout = mLauncher.getHotseat().getLayout(); 972 child.setOnKeyListener(null); 973 974 // Hide folder title in the hotseat 975 if (child instanceof FolderIcon) { 976 ((FolderIcon) child).setTextVisible(false); 977 } 978 979 if (computeXYFromRank) { 980 x = mLauncher.getHotseat().getCellXFromOrder((int) screenId); 981 y = mLauncher.getHotseat().getCellYFromOrder((int) screenId); 982 } else { 983 screenId = mLauncher.getHotseat().getOrderInHotseat(x, y); 984 } 985 } else { 986 // Show folder title if not in the hotseat 987 if (child instanceof FolderIcon) { 988 ((FolderIcon) child).setTextVisible(true); 989 } 990 layout = getScreenWithId(screenId); 991 child.setOnKeyListener(new IconKeyEventListener()); 992 } 993 994 ViewGroup.LayoutParams genericLp = child.getLayoutParams(); 995 CellLayout.LayoutParams lp; 996 if (genericLp == null || !(genericLp instanceof CellLayout.LayoutParams)) { 997 lp = new CellLayout.LayoutParams(x, y, spanX, spanY); 998 } else { 999 lp = (CellLayout.LayoutParams) genericLp; 1000 lp.cellX = x; 1001 lp.cellY = y; 1002 lp.cellHSpan = spanX; 1003 lp.cellVSpan = spanY; 1004 } 1005 1006 if (spanX < 0 && spanY < 0) { 1007 lp.isLockedToGrid = false; 1008 } 1009 1010 // Get the canonical child id to uniquely represent this view in this screen 1011 ItemInfo info = (ItemInfo) child.getTag(); 1012 int childId = mLauncher.getViewIdForItem(info); 1013 1014 boolean markCellsAsOccupied = !(child instanceof Folder); 1015 if (!layout.addViewToCellLayout(child, insert ? 0 : -1, childId, lp, markCellsAsOccupied)) { 1016 // TODO: This branch occurs when the workspace is adding views 1017 // outside of the defined grid 1018 // maybe we should be deleting these items from the LauncherModel? 1019 Launcher.addDumpLog(TAG, "Failed to add to item at (" + lp.cellX + "," + lp.cellY + ") to CellLayout", true); 1020 } 1021 1022 if (!(child instanceof Folder)) { 1023 child.setHapticFeedbackEnabled(false); 1024 child.setOnLongClickListener(mLongClickListener); 1025 } 1026 if (child instanceof DropTarget) { 1027 mDragController.addDropTarget((DropTarget) child); 1028 } 1029 } 1030 1031 /** 1032 * Called directly from a CellLayout (not by the framework), after we've been added as a 1033 * listener via setOnInterceptTouchEventListener(). This allows us to tell the CellLayout 1034 * that it should intercept touch events, which is not something that is normally supported. 1035 */ 1036 @Override 1037 public boolean onTouch(View v, MotionEvent event) { 1038 return (isSmall() || !isFinishedSwitchingState()) 1039 || (!isSmall() && indexOfChild(v) != mCurrentPage); 1040 } 1041 1042 public boolean isSwitchingState() { 1043 return mIsSwitchingState; 1044 } 1045 1046 /** This differs from isSwitchingState in that we take into account how far the transition 1047 * has completed. */ 1048 public boolean isFinishedSwitchingState() { 1049 return !mIsSwitchingState || (mTransitionProgress > 0.5f); 1050 } 1051 1052 protected void onWindowVisibilityChanged (int visibility) { 1053 mLauncher.onWindowVisibilityChanged(visibility); 1054 } 1055 1056 @Override 1057 public boolean dispatchUnhandledMove(View focused, int direction) { 1058 if (isSmall() || !isFinishedSwitchingState()) { 1059 // when the home screens are shrunken, shouldn't allow side-scrolling 1060 return false; 1061 } 1062 return super.dispatchUnhandledMove(focused, direction); 1063 } 1064 1065 @Override 1066 public boolean onInterceptTouchEvent(MotionEvent ev) { 1067 switch (ev.getAction() & MotionEvent.ACTION_MASK) { 1068 case MotionEvent.ACTION_DOWN: 1069 mXDown = ev.getX(); 1070 mYDown = ev.getY(); 1071 mTouchDownTime = System.currentTimeMillis(); 1072 break; 1073 case MotionEvent.ACTION_POINTER_UP: 1074 case MotionEvent.ACTION_UP: 1075 if (mTouchState == TOUCH_STATE_REST) { 1076 final CellLayout currentPage = (CellLayout) getChildAt(mCurrentPage); 1077 if (!currentPage.lastDownOnOccupiedCell()) { 1078 onWallpaperTap(ev); 1079 } 1080 } 1081 } 1082 return super.onInterceptTouchEvent(ev); 1083 } 1084 1085 protected void reinflateWidgetsIfNecessary() { 1086 final int clCount = getChildCount(); 1087 for (int i = 0; i < clCount; i++) { 1088 CellLayout cl = (CellLayout) getChildAt(i); 1089 ShortcutAndWidgetContainer swc = cl.getShortcutsAndWidgets(); 1090 final int itemCount = swc.getChildCount(); 1091 for (int j = 0; j < itemCount; j++) { 1092 View v = swc.getChildAt(j); 1093 1094 if (v.getTag() instanceof LauncherAppWidgetInfo) { 1095 LauncherAppWidgetInfo info = (LauncherAppWidgetInfo) v.getTag(); 1096 LauncherAppWidgetHostView lahv = (LauncherAppWidgetHostView) info.hostView; 1097 if (lahv != null && lahv.orientationChangedSincedInflation()) { 1098 mLauncher.removeAppWidget(info); 1099 // Remove the current widget which is inflated with the wrong orientation 1100 cl.removeView(lahv); 1101 mLauncher.bindAppWidget(info); 1102 } 1103 } 1104 } 1105 } 1106 } 1107 1108 @Override 1109 protected void determineScrollingStart(MotionEvent ev) { 1110 if (!isFinishedSwitchingState()) return; 1111 1112 float deltaX = ev.getX() - mXDown; 1113 float absDeltaX = Math.abs(deltaX); 1114 float absDeltaY = Math.abs(ev.getY() - mYDown); 1115 1116 if (Float.compare(absDeltaX, 0f) == 0) return; 1117 1118 float slope = absDeltaY / absDeltaX; 1119 float theta = (float) Math.atan(slope); 1120 1121 if (absDeltaX > mTouchSlop || absDeltaY > mTouchSlop) { 1122 cancelCurrentPageLongPress(); 1123 } 1124 1125 boolean passRightSwipesToCustomContent = 1126 (mTouchDownTime - mCustomContentShowTime) > CUSTOM_CONTENT_GESTURE_DELAY; 1127 1128 boolean swipeInIgnoreDirection = isLayoutRtl() ? deltaX < 0 : deltaX > 0; 1129 if (swipeInIgnoreDirection && getScreenIdForPageIndex(getCurrentPage()) == 1130 CUSTOM_CONTENT_SCREEN_ID && passRightSwipesToCustomContent) { 1131 // Pass swipes to the right to the custom content page. 1132 return; 1133 } 1134 1135 if (theta > MAX_SWIPE_ANGLE) { 1136 // Above MAX_SWIPE_ANGLE, we don't want to ever start scrolling the workspace 1137 return; 1138 } else if (theta > START_DAMPING_TOUCH_SLOP_ANGLE) { 1139 // Above START_DAMPING_TOUCH_SLOP_ANGLE and below MAX_SWIPE_ANGLE, we want to 1140 // increase the touch slop to make it harder to begin scrolling the workspace. This 1141 // results in vertically scrolling widgets to more easily. The higher the angle, the 1142 // more we increase touch slop. 1143 theta -= START_DAMPING_TOUCH_SLOP_ANGLE; 1144 float extraRatio = (float) 1145 Math.sqrt((theta / (MAX_SWIPE_ANGLE - START_DAMPING_TOUCH_SLOP_ANGLE))); 1146 super.determineScrollingStart(ev, 1 + TOUCH_SLOP_DAMPING_FACTOR * extraRatio); 1147 } else { 1148 // Below START_DAMPING_TOUCH_SLOP_ANGLE, we don't do anything special 1149 super.determineScrollingStart(ev); 1150 } 1151 } 1152 1153 protected void onPageBeginMoving() { 1154 super.onPageBeginMoving(); 1155 1156 if (isHardwareAccelerated()) { 1157 updateChildrenLayersEnabled(false); 1158 } else { 1159 if (mNextPage != INVALID_PAGE) { 1160 // we're snapping to a particular screen 1161 enableChildrenCache(mCurrentPage, mNextPage); 1162 } else { 1163 // this is when user is actively dragging a particular screen, they might 1164 // swipe it either left or right (but we won't advance by more than one screen) 1165 enableChildrenCache(mCurrentPage - 1, mCurrentPage + 1); 1166 } 1167 } 1168 1169 // If we are not fading in adjacent screens, we still need to restore the alpha in case the 1170 // user scrolls while we are transitioning (should not affect dispatchDraw optimizations) 1171 if (!mWorkspaceFadeInAdjacentScreens) { 1172 for (int i = 0; i < getChildCount(); ++i) { 1173 ((CellLayout) getPageAt(i)).setShortcutAndWidgetAlpha(1f); 1174 } 1175 } 1176 } 1177 1178 protected void onPageEndMoving() { 1179 super.onPageEndMoving(); 1180 1181 if (isHardwareAccelerated()) { 1182 updateChildrenLayersEnabled(false); 1183 } else { 1184 clearChildrenCache(); 1185 } 1186 1187 if (mDragController.isDragging()) { 1188 if (isSmall()) { 1189 // If we are in springloaded mode, then force an event to check if the current touch 1190 // is under a new page (to scroll to) 1191 mDragController.forceTouchMove(); 1192 } 1193 } 1194 1195 if (mDelayedResizeRunnable != null) { 1196 mDelayedResizeRunnable.run(); 1197 mDelayedResizeRunnable = null; 1198 } 1199 1200 if (mDelayedSnapToPageRunnable != null) { 1201 mDelayedSnapToPageRunnable.run(); 1202 mDelayedSnapToPageRunnable = null; 1203 } 1204 if (mStripScreensOnPageStopMoving) { 1205 stripEmptyScreens(); 1206 mStripScreensOnPageStopMoving = false; 1207 } 1208 } 1209 1210 @Override 1211 protected void notifyPageSwitchListener() { 1212 super.notifyPageSwitchListener(); 1213 Launcher.setScreen(getNextPage()); 1214 1215 if (hasCustomContent() && getNextPage() == 0 && !mCustomContentShowing) { 1216 mCustomContentShowing = true; 1217 if (mCustomContentCallbacks != null) { 1218 mCustomContentCallbacks.onShow(); 1219 mCustomContentShowTime = System.currentTimeMillis(); 1220 mLauncher.updateVoiceButtonProxyVisible(false); 1221 } 1222 } else if (hasCustomContent() && getNextPage() != 0 && mCustomContentShowing) { 1223 mCustomContentShowing = false; 1224 if (mCustomContentCallbacks != null) { 1225 mCustomContentCallbacks.onHide(); 1226 mLauncher.resetQSBScroll(); 1227 mLauncher.updateVoiceButtonProxyVisible(false); 1228 } 1229 } 1230 if (getPageIndicator() != null) { 1231 getPageIndicator().setContentDescription(getPageIndicatorDescription()); 1232 } 1233 } 1234 1235 protected CustomContentCallbacks getCustomContentCallbacks() { 1236 return mCustomContentCallbacks; 1237 } 1238 1239 protected void setWallpaperDimension() { 1240 new AsyncTask<Void, Void, Void>() { 1241 public Void doInBackground(Void ... args) { 1242 String spKey = WallpaperCropActivity.getSharedPreferencesKey(); 1243 SharedPreferences sp = 1244 mLauncher.getSharedPreferences(spKey, Context.MODE_MULTI_PROCESS); 1245 LauncherWallpaperPickerActivity.suggestWallpaperDimension(mLauncher.getResources(), 1246 sp, mLauncher.getWindowManager(), mWallpaperManager); 1247 return null; 1248 } 1249 }.executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR, (Void) null); 1250 } 1251 1252 protected void snapToPage(int whichPage, Runnable r) { 1253 snapToPage(whichPage, SLOW_PAGE_SNAP_ANIMATION_DURATION, r); 1254 } 1255 1256 protected void snapToPage(int whichPage, int duration, Runnable r) { 1257 if (mDelayedSnapToPageRunnable != null) { 1258 mDelayedSnapToPageRunnable.run(); 1259 } 1260 mDelayedSnapToPageRunnable = r; 1261 snapToPage(whichPage, duration); 1262 } 1263 1264 protected void snapToScreenId(long screenId, Runnable r) { 1265 snapToPage(getPageIndexForScreenId(screenId), r); 1266 } 1267 1268 class WallpaperOffsetInterpolator implements Choreographer.FrameCallback { 1269 float mFinalOffset = 0.0f; 1270 float mCurrentOffset = 0.5f; // to force an initial update 1271 boolean mWaitingForUpdate; 1272 Choreographer mChoreographer; 1273 Interpolator mInterpolator; 1274 boolean mAnimating; 1275 long mAnimationStartTime; 1276 float mAnimationStartOffset; 1277 private final int ANIMATION_DURATION = 250; 1278 // Don't use all the wallpaper for parallax until you have at least this many pages 1279 private final int MIN_PARALLAX_PAGE_SPAN = 3; 1280 int mNumScreens; 1281 1282 public WallpaperOffsetInterpolator() { 1283 mChoreographer = Choreographer.getInstance(); 1284 mInterpolator = new DecelerateInterpolator(1.5f); 1285 } 1286 1287 @Override 1288 public void doFrame(long frameTimeNanos) { 1289 updateOffset(false); 1290 } 1291 1292 private void updateOffset(boolean force) { 1293 if (mWaitingForUpdate || force) { 1294 mWaitingForUpdate = false; 1295 if (computeScrollOffset() && mWindowToken != null) { 1296 try { 1297 mWallpaperManager.setWallpaperOffsets(mWindowToken, 1298 mWallpaperOffset.getCurrX(), 0.5f); 1299 setWallpaperOffsetSteps(); 1300 } catch (IllegalArgumentException e) { 1301 Log.e(TAG, "Error updating wallpaper offset: " + e); 1302 } 1303 } 1304 } 1305 } 1306 1307 public boolean computeScrollOffset() { 1308 final float oldOffset = mCurrentOffset; 1309 if (mAnimating) { 1310 long durationSinceAnimation = System.currentTimeMillis() - mAnimationStartTime; 1311 float t0 = durationSinceAnimation / (float) ANIMATION_DURATION; 1312 float t1 = mInterpolator.getInterpolation(t0); 1313 mCurrentOffset = mAnimationStartOffset + 1314 (mFinalOffset - mAnimationStartOffset) * t1; 1315 mAnimating = durationSinceAnimation < ANIMATION_DURATION; 1316 } else { 1317 mCurrentOffset = mFinalOffset; 1318 } 1319 1320 if (Math.abs(mCurrentOffset - mFinalOffset) > 0.0000001f) { 1321 scheduleUpdate(); 1322 } 1323 if (Math.abs(oldOffset - mCurrentOffset) > 0.0000001f) { 1324 return true; 1325 } 1326 return false; 1327 } 1328 1329 private float wallpaperOffsetForCurrentScroll() { 1330 if (getChildCount() <= 1) { 1331 return 0; 1332 } 1333 1334 // Exclude the leftmost page 1335 int emptyExtraPages = numEmptyScreensToIgnore(); 1336 int firstIndex = numCustomPages(); 1337 // Exclude the last extra empty screen (if we have > MIN_PARALLAX_PAGE_SPAN pages) 1338 int lastIndex = getChildCount() - 1 - emptyExtraPages; 1339 if (isLayoutRtl()) { 1340 int temp = firstIndex; 1341 firstIndex = lastIndex; 1342 lastIndex = temp; 1343 } 1344 1345 int firstPageScrollX = getScrollForPage(firstIndex); 1346 int scrollRange = getScrollForPage(lastIndex) - firstPageScrollX; 1347 if (scrollRange == 0) { 1348 return 0; 1349 } else { 1350 // TODO: do different behavior if it's a live wallpaper? 1351 // Sometimes the left parameter of the pages is animated during a layout transition; 1352 // this parameter offsets it to keep the wallpaper from animating as well 1353 int adjustedScroll = 1354 getScrollX() - firstPageScrollX - getLayoutTransitionOffsetForPage(0); 1355 float offset = Math.min(1, adjustedScroll / (float) scrollRange); 1356 offset = Math.max(0, offset); 1357 // Don't use up all the wallpaper parallax until you have at least 1358 // MIN_PARALLAX_PAGE_SPAN pages 1359 int numScrollingPages = getNumScreensExcludingEmptyAndCustom(); 1360 int parallaxPageSpan; 1361 if (mWallpaperIsLiveWallpaper) { 1362 parallaxPageSpan = numScrollingPages - 1; 1363 } else { 1364 parallaxPageSpan = Math.max(MIN_PARALLAX_PAGE_SPAN, numScrollingPages - 1); 1365 } 1366 mNumPagesForWallpaperParallax = parallaxPageSpan; 1367 1368 // On RTL devices, push the wallpaper offset to the right if we don't have enough 1369 // pages (ie if numScrollingPages < MIN_PARALLAX_PAGE_SPAN) 1370 int padding = isLayoutRtl() ? parallaxPageSpan - numScrollingPages + 1 : 0; 1371 return offset * (padding + numScrollingPages - 1) / parallaxPageSpan; 1372 } 1373 } 1374 1375 private int numEmptyScreensToIgnore() { 1376 int numScrollingPages = getChildCount() - numCustomPages(); 1377 if (numScrollingPages >= MIN_PARALLAX_PAGE_SPAN && hasExtraEmptyScreen()) { 1378 return 1; 1379 } else { 1380 return 0; 1381 } 1382 } 1383 1384 private int getNumScreensExcludingEmptyAndCustom() { 1385 int numScrollingPages = getChildCount() - numEmptyScreensToIgnore() - numCustomPages(); 1386 return numScrollingPages; 1387 } 1388 1389 public void syncWithScroll() { 1390 float offset = wallpaperOffsetForCurrentScroll(); 1391 mWallpaperOffset.setFinalX(offset); 1392 updateOffset(true); 1393 } 1394 1395 public float getCurrX() { 1396 return mCurrentOffset; 1397 } 1398 1399 public float getFinalX() { 1400 return mFinalOffset; 1401 } 1402 1403 private void animateToFinal() { 1404 mAnimating = true; 1405 mAnimationStartOffset = mCurrentOffset; 1406 mAnimationStartTime = System.currentTimeMillis(); 1407 } 1408 1409 private void setWallpaperOffsetSteps() { 1410 // Set wallpaper offset steps (1 / (number of screens - 1)) 1411 float xOffset = 1.0f / mNumPagesForWallpaperParallax; 1412 if (xOffset != mLastSetWallpaperOffsetSteps) { 1413 mWallpaperManager.setWallpaperOffsetSteps(xOffset, 1.0f); 1414 mLastSetWallpaperOffsetSteps = xOffset; 1415 } 1416 } 1417 1418 public void setFinalX(float x) { 1419 scheduleUpdate(); 1420 mFinalOffset = Math.max(0f, Math.min(x, 1.0f)); 1421 if (getNumScreensExcludingEmptyAndCustom() != mNumScreens) { 1422 if (mNumScreens > 0) { 1423 // Don't animate if we're going from 0 screens 1424 animateToFinal(); 1425 } 1426 mNumScreens = getNumScreensExcludingEmptyAndCustom(); 1427 } 1428 } 1429 1430 private void scheduleUpdate() { 1431 if (!mWaitingForUpdate) { 1432 mChoreographer.postFrameCallback(this); 1433 mWaitingForUpdate = true; 1434 } 1435 } 1436 1437 public void jumpToFinal() { 1438 mCurrentOffset = mFinalOffset; 1439 } 1440 } 1441 1442 @Override 1443 public void computeScroll() { 1444 super.computeScroll(); 1445 mWallpaperOffset.syncWithScroll(); 1446 } 1447 1448 void showOutlines() { 1449 if (!isSmall() && !mIsSwitchingState) { 1450 if (mChildrenOutlineFadeOutAnimation != null) mChildrenOutlineFadeOutAnimation.cancel(); 1451 if (mChildrenOutlineFadeInAnimation != null) mChildrenOutlineFadeInAnimation.cancel(); 1452 mChildrenOutlineFadeInAnimation = LauncherAnimUtils.ofFloat(this, "childrenOutlineAlpha", 1.0f); 1453 mChildrenOutlineFadeInAnimation.setDuration(CHILDREN_OUTLINE_FADE_IN_DURATION); 1454 mChildrenOutlineFadeInAnimation.start(); 1455 } 1456 } 1457 1458 void hideOutlines() { 1459 if (!isSmall() && !mIsSwitchingState) { 1460 if (mChildrenOutlineFadeInAnimation != null) mChildrenOutlineFadeInAnimation.cancel(); 1461 if (mChildrenOutlineFadeOutAnimation != null) mChildrenOutlineFadeOutAnimation.cancel(); 1462 mChildrenOutlineFadeOutAnimation = LauncherAnimUtils.ofFloat(this, "childrenOutlineAlpha", 0.0f); 1463 mChildrenOutlineFadeOutAnimation.setDuration(CHILDREN_OUTLINE_FADE_OUT_DURATION); 1464 mChildrenOutlineFadeOutAnimation.setStartDelay(CHILDREN_OUTLINE_FADE_OUT_DELAY); 1465 mChildrenOutlineFadeOutAnimation.start(); 1466 } 1467 } 1468 1469 public void showOutlinesTemporarily() { 1470 if (!mIsPageMoving && !isTouchActive()) { 1471 snapToPage(mCurrentPage); 1472 } 1473 } 1474 1475 public void setChildrenOutlineAlpha(float alpha) { 1476 mChildrenOutlineAlpha = alpha; 1477 for (int i = 0; i < getChildCount(); i++) { 1478 CellLayout cl = (CellLayout) getChildAt(i); 1479 cl.setBackgroundAlpha(alpha); 1480 } 1481 } 1482 1483 public float getChildrenOutlineAlpha() { 1484 return mChildrenOutlineAlpha; 1485 } 1486 1487 void disableBackground() { 1488 mDrawBackground = false; 1489 } 1490 void enableBackground() { 1491 mDrawBackground = true; 1492 } 1493 1494 private void animateBackgroundGradient(float finalAlpha, boolean animated) { 1495 if (mBackground == null) return; 1496 if (mBackgroundFadeInAnimation != null) { 1497 mBackgroundFadeInAnimation.cancel(); 1498 mBackgroundFadeInAnimation = null; 1499 } 1500 if (mBackgroundFadeOutAnimation != null) { 1501 mBackgroundFadeOutAnimation.cancel(); 1502 mBackgroundFadeOutAnimation = null; 1503 } 1504 float startAlpha = getBackgroundAlpha(); 1505 if (finalAlpha != startAlpha) { 1506 if (animated) { 1507 mBackgroundFadeOutAnimation = 1508 LauncherAnimUtils.ofFloat(this, startAlpha, finalAlpha); 1509 mBackgroundFadeOutAnimation.addUpdateListener(new AnimatorUpdateListener() { 1510 public void onAnimationUpdate(ValueAnimator animation) { 1511 setBackgroundAlpha(((Float) animation.getAnimatedValue()).floatValue()); 1512 } 1513 }); 1514 mBackgroundFadeOutAnimation.setInterpolator(new DecelerateInterpolator(1.5f)); 1515 mBackgroundFadeOutAnimation.setDuration(BACKGROUND_FADE_OUT_DURATION); 1516 mBackgroundFadeOutAnimation.start(); 1517 } else { 1518 setBackgroundAlpha(finalAlpha); 1519 } 1520 } 1521 } 1522 1523 public void setBackgroundAlpha(float alpha) { 1524 if (alpha != mBackgroundAlpha) { 1525 mBackgroundAlpha = alpha; 1526 invalidate(); 1527 } 1528 } 1529 1530 public float getBackgroundAlpha() { 1531 return mBackgroundAlpha; 1532 } 1533 1534 float backgroundAlphaInterpolator(float r) { 1535 float pivotA = 0.1f; 1536 float pivotB = 0.4f; 1537 if (r < pivotA) { 1538 return 0; 1539 } else if (r > pivotB) { 1540 return 1.0f; 1541 } else { 1542 return (r - pivotA)/(pivotB - pivotA); 1543 } 1544 } 1545 1546 private void updatePageAlphaValues(int screenCenter) { 1547 boolean isInOverscroll = mOverScrollX < 0 || mOverScrollX > mMaxScrollX; 1548 if (mWorkspaceFadeInAdjacentScreens && 1549 mState == State.NORMAL && 1550 !mIsSwitchingState && 1551 !isInOverscroll) { 1552 for (int i = numCustomPages(); i < getChildCount(); i++) { 1553 CellLayout child = (CellLayout) getChildAt(i); 1554 if (child != null) { 1555 float scrollProgress = getScrollProgress(screenCenter, child, i); 1556 float alpha = 1 - Math.abs(scrollProgress); 1557 child.getShortcutsAndWidgets().setAlpha(alpha); 1558 } 1559 } 1560 } 1561 } 1562 1563 private void setChildrenBackgroundAlphaMultipliers(float a) { 1564 for (int i = 0; i < getChildCount(); i++) { 1565 CellLayout child = (CellLayout) getChildAt(i); 1566 child.setBackgroundAlphaMultiplier(a); 1567 } 1568 } 1569 1570 public boolean hasCustomContent() { 1571 return (mScreenOrder.size() > 0 && mScreenOrder.get(0) == CUSTOM_CONTENT_SCREEN_ID); 1572 } 1573 1574 public int numCustomPages() { 1575 return hasCustomContent() ? 1 : 0; 1576 } 1577 1578 public boolean isOnOrMovingToCustomContent() { 1579 return hasCustomContent() && getNextPage() == 0; 1580 } 1581 1582 private void updateStateForCustomContent(int screenCenter) { 1583 float translationX = 0; 1584 float progress = 0; 1585 if (hasCustomContent()) { 1586 int index = mScreenOrder.indexOf(CUSTOM_CONTENT_SCREEN_ID); 1587 1588 int scrollDelta = getScrollX() - getScrollForPage(index) - 1589 getLayoutTransitionOffsetForPage(index); 1590 float scrollRange = getScrollForPage(index + 1) - getScrollForPage(index); 1591 translationX = scrollRange - scrollDelta; 1592 progress = (scrollRange - scrollDelta) / scrollRange; 1593 1594 if (isLayoutRtl()) { 1595 translationX = Math.min(0, translationX); 1596 } else { 1597 translationX = Math.max(0, translationX); 1598 } 1599 progress = Math.max(0, progress); 1600 } 1601 1602 if (Float.compare(progress, mLastCustomContentScrollProgress) == 0) return; 1603 1604 CellLayout cc = mWorkspaceScreens.get(CUSTOM_CONTENT_SCREEN_ID); 1605 if (progress > 0 && cc.getVisibility() != VISIBLE && !isSmall()) { 1606 cc.setVisibility(VISIBLE); 1607 } 1608 1609 mLastCustomContentScrollProgress = progress; 1610 1611 setBackgroundAlpha(progress * 0.8f); 1612 1613 if (mLauncher.getHotseat() != null) { 1614 mLauncher.getHotseat().setTranslationX(translationX); 1615 } 1616 1617 if (getPageIndicator() != null) { 1618 getPageIndicator().setTranslationX(translationX); 1619 } 1620 1621 if (mCustomContentCallbacks != null) { 1622 mCustomContentCallbacks.onScrollProgressChanged(progress); 1623 } 1624 } 1625 1626 @Override 1627 protected OnClickListener getPageIndicatorClickListener() { 1628 AccessibilityManager am = (AccessibilityManager) 1629 getContext().getSystemService(Context.ACCESSIBILITY_SERVICE); 1630 if (!am.isTouchExplorationEnabled()) { 1631 return null; 1632 } 1633 OnClickListener listener = new OnClickListener() { 1634 @Override 1635 public void onClick(View arg0) { 1636 enterOverviewMode(); 1637 } 1638 }; 1639 return listener; 1640 } 1641 1642 @Override 1643 protected void screenScrolled(int screenCenter) { 1644 final boolean isRtl = isLayoutRtl(); 1645 super.screenScrolled(screenCenter); 1646 1647 updatePageAlphaValues(screenCenter); 1648 updateStateForCustomContent(screenCenter); 1649 enableHwLayersOnVisiblePages(); 1650 1651 boolean shouldOverScroll = (mOverScrollX < 0 && (!hasCustomContent() || isLayoutRtl())) || 1652 (mOverScrollX > mMaxScrollX && (!hasCustomContent() || !isLayoutRtl())); 1653 1654 if (shouldOverScroll) { 1655 int index = 0; 1656 float pivotX = 0f; 1657 final float leftBiasedPivot = 0.25f; 1658 final float rightBiasedPivot = 0.75f; 1659 final int lowerIndex = 0; 1660 final int upperIndex = getChildCount() - 1; 1661 1662 final boolean isLeftPage = mOverScrollX < 0; 1663 index = (!isRtl && isLeftPage) || (isRtl && !isLeftPage) ? lowerIndex : upperIndex; 1664 pivotX = isLeftPage ? rightBiasedPivot : leftBiasedPivot; 1665 1666 CellLayout cl = (CellLayout) getChildAt(index); 1667 float scrollProgress = getScrollProgress(screenCenter, cl, index); 1668 cl.setOverScrollAmount(Math.abs(scrollProgress), isLeftPage); 1669 float rotation = -WORKSPACE_OVERSCROLL_ROTATION * scrollProgress; 1670 cl.setRotationY(rotation); 1671 1672 if (!mOverscrollTransformsSet || Float.compare(mLastOverscrollPivotX, pivotX) != 0) { 1673 mOverscrollTransformsSet = true; 1674 mLastOverscrollPivotX = pivotX; 1675 cl.setCameraDistance(mDensity * mCameraDistance); 1676 cl.setPivotX(cl.getMeasuredWidth() * pivotX); 1677 cl.setPivotY(cl.getMeasuredHeight() * 0.5f); 1678 cl.setOverscrollTransformsDirty(true); 1679 } 1680 } else { 1681 if (mOverscrollTransformsSet && getChildCount() > 0) { 1682 mOverscrollTransformsSet = false; 1683 ((CellLayout) getChildAt(0)).resetOverscrollTransforms(); 1684 ((CellLayout) getChildAt(getChildCount() - 1)).resetOverscrollTransforms(); 1685 } 1686 } 1687 } 1688 1689 @Override 1690 protected void overScroll(float amount) { 1691 acceleratedOverScroll(amount); 1692 } 1693 1694 protected void onAttachedToWindow() { 1695 super.onAttachedToWindow(); 1696 mWindowToken = getWindowToken(); 1697 computeScroll(); 1698 mDragController.setWindowToken(mWindowToken); 1699 } 1700 1701 protected void onDetachedFromWindow() { 1702 super.onDetachedFromWindow(); 1703 mWindowToken = null; 1704 } 1705 1706 protected void onResume() { 1707 if (getPageIndicator() != null) { 1708 // In case accessibility state has changed, we need to perform this on every 1709 // attach to window 1710 OnClickListener listener = getPageIndicatorClickListener(); 1711 if (listener != null) { 1712 getPageIndicator().setOnClickListener(listener); 1713 } 1714 } 1715 AccessibilityManager am = (AccessibilityManager) 1716 getContext().getSystemService(Context.ACCESSIBILITY_SERVICE); 1717 sAccessibilityEnabled = am.isEnabled(); 1718 1719 // Update wallpaper dimensions if they were changed since last onResume 1720 // (we also always set the wallpaper dimensions in the constructor) 1721 if (LauncherAppState.getInstance().hasWallpaperChangedSinceLastCheck()) { 1722 setWallpaperDimension(); 1723 } 1724 mWallpaperIsLiveWallpaper = mWallpaperManager.getWallpaperInfo() != null; 1725 // Force the wallpaper offset steps to be set again, because another app might have changed 1726 // them 1727 mLastSetWallpaperOffsetSteps = 0f; 1728 } 1729 1730 @Override 1731 protected void onLayout(boolean changed, int left, int top, int right, int bottom) { 1732 if (mFirstLayout && mCurrentPage >= 0 && mCurrentPage < getChildCount()) { 1733 mWallpaperOffset.syncWithScroll(); 1734 mWallpaperOffset.jumpToFinal(); 1735 } 1736 super.onLayout(changed, left, top, right, bottom); 1737 } 1738 1739 @Override 1740 protected void onDraw(Canvas canvas) { 1741 // Draw the background gradient if necessary 1742 if (mBackground != null && mBackgroundAlpha > 0.0f && mDrawBackground) { 1743 int alpha = (int) (mBackgroundAlpha * 255); 1744 mBackground.setAlpha(alpha); 1745 mBackground.setBounds(getScrollX(), 0, getScrollX() + getMeasuredWidth(), 1746 getMeasuredHeight()); 1747 mBackground.draw(canvas); 1748 } 1749 1750 super.onDraw(canvas); 1751 1752 // Call back to LauncherModel to finish binding after the first draw 1753 post(mBindPages); 1754 } 1755 1756 boolean isDrawingBackgroundGradient() { 1757 return (mBackground != null && mBackgroundAlpha > 0.0f && mDrawBackground); 1758 } 1759 1760 @Override 1761 protected boolean onRequestFocusInDescendants(int direction, Rect previouslyFocusedRect) { 1762 if (!mLauncher.isAllAppsVisible()) { 1763 final Folder openFolder = getOpenFolder(); 1764 if (openFolder != null) { 1765 return openFolder.requestFocus(direction, previouslyFocusedRect); 1766 } else { 1767 return super.onRequestFocusInDescendants(direction, previouslyFocusedRect); 1768 } 1769 } 1770 return false; 1771 } 1772 1773 @Override 1774 public int getDescendantFocusability() { 1775 if (isSmall()) { 1776 return ViewGroup.FOCUS_BLOCK_DESCENDANTS; 1777 } 1778 return super.getDescendantFocusability(); 1779 } 1780 1781 @Override 1782 public void addFocusables(ArrayList<View> views, int direction, int focusableMode) { 1783 if (!mLauncher.isAllAppsVisible()) { 1784 final Folder openFolder = getOpenFolder(); 1785 if (openFolder != null) { 1786 openFolder.addFocusables(views, direction); 1787 } else { 1788 super.addFocusables(views, direction, focusableMode); 1789 } 1790 } 1791 } 1792 1793 public boolean isSmall() { 1794 return mState == State.SMALL || mState == State.SPRING_LOADED || mState == State.OVERVIEW; 1795 } 1796 1797 void enableChildrenCache(int fromPage, int toPage) { 1798 if (fromPage > toPage) { 1799 final int temp = fromPage; 1800 fromPage = toPage; 1801 toPage = temp; 1802 } 1803 1804 final int screenCount = getChildCount(); 1805 1806 fromPage = Math.max(fromPage, 0); 1807 toPage = Math.min(toPage, screenCount - 1); 1808 1809 for (int i = fromPage; i <= toPage; i++) { 1810 final CellLayout layout = (CellLayout) getChildAt(i); 1811 layout.setChildrenDrawnWithCacheEnabled(true); 1812 layout.setChildrenDrawingCacheEnabled(true); 1813 } 1814 } 1815 1816 void clearChildrenCache() { 1817 final int screenCount = getChildCount(); 1818 for (int i = 0; i < screenCount; i++) { 1819 final CellLayout layout = (CellLayout) getChildAt(i); 1820 layout.setChildrenDrawnWithCacheEnabled(false); 1821 // In software mode, we don't want the items to continue to be drawn into bitmaps 1822 if (!isHardwareAccelerated()) { 1823 layout.setChildrenDrawingCacheEnabled(false); 1824 } 1825 } 1826 } 1827 1828 private void updateChildrenLayersEnabled(boolean force) { 1829 boolean small = mState == State.SMALL || mState == State.OVERVIEW || mIsSwitchingState; 1830 boolean enableChildrenLayers = force || small || mAnimatingViewIntoPlace || isPageMoving(); 1831 1832 if (enableChildrenLayers != mChildrenLayersEnabled) { 1833 mChildrenLayersEnabled = enableChildrenLayers; 1834 if (mChildrenLayersEnabled) { 1835 enableHwLayersOnVisiblePages(); 1836 } else { 1837 for (int i = 0; i < getPageCount(); i++) { 1838 final CellLayout cl = (CellLayout) getChildAt(i); 1839 cl.enableHardwareLayer(false); 1840 } 1841 } 1842 } 1843 } 1844 1845 private void enableHwLayersOnVisiblePages() { 1846 if (mChildrenLayersEnabled) { 1847 final int screenCount = getChildCount(); 1848 getVisiblePages(mTempVisiblePagesRange); 1849 int leftScreen = mTempVisiblePagesRange[0]; 1850 int rightScreen = mTempVisiblePagesRange[1]; 1851 if (leftScreen == rightScreen) { 1852 // make sure we're caching at least two pages always 1853 if (rightScreen < screenCount - 1) { 1854 rightScreen++; 1855 } else if (leftScreen > 0) { 1856 leftScreen--; 1857 } 1858 } 1859 1860 final CellLayout customScreen = mWorkspaceScreens.get(CUSTOM_CONTENT_SCREEN_ID); 1861 for (int i = 0; i < screenCount; i++) { 1862 final CellLayout layout = (CellLayout) getPageAt(i); 1863 1864 // enable layers between left and right screen inclusive, except for the 1865 // customScreen, which may animate its content during transitions. 1866 boolean enableLayer = layout != customScreen && 1867 leftScreen <= i && i <= rightScreen && shouldDrawChild(layout); 1868 layout.enableHardwareLayer(enableLayer); 1869 } 1870 } 1871 } 1872 1873 public void buildPageHardwareLayers() { 1874 // force layers to be enabled just for the call to buildLayer 1875 updateChildrenLayersEnabled(true); 1876 if (getWindowToken() != null) { 1877 final int childCount = getChildCount(); 1878 for (int i = 0; i < childCount; i++) { 1879 CellLayout cl = (CellLayout) getChildAt(i); 1880 cl.buildHardwareLayer(); 1881 } 1882 } 1883 updateChildrenLayersEnabled(false); 1884 } 1885 1886 protected void onWallpaperTap(MotionEvent ev) { 1887 final int[] position = mTempCell; 1888 getLocationOnScreen(position); 1889 1890 int pointerIndex = ev.getActionIndex(); 1891 position[0] += (int) ev.getX(pointerIndex); 1892 position[1] += (int) ev.getY(pointerIndex); 1893 1894 mWallpaperManager.sendWallpaperCommand(getWindowToken(), 1895 ev.getAction() == MotionEvent.ACTION_UP 1896 ? WallpaperManager.COMMAND_TAP : WallpaperManager.COMMAND_SECONDARY_TAP, 1897 position[0], position[1], 0, null); 1898 } 1899 1900 /* 1901 * This interpolator emulates the rate at which the perceived scale of an object changes 1902 * as its distance from a camera increases. When this interpolator is applied to a scale 1903 * animation on a view, it evokes the sense that the object is shrinking due to moving away 1904 * from the camera. 1905 */ 1906 static class ZInterpolator implements TimeInterpolator { 1907 private float focalLength; 1908 1909 public ZInterpolator(float foc) { 1910 focalLength = foc; 1911 } 1912 1913 public float getInterpolation(float input) { 1914 return (1.0f - focalLength / (focalLength + input)) / 1915 (1.0f - focalLength / (focalLength + 1.0f)); 1916 } 1917 } 1918 1919 /* 1920 * The exact reverse of ZInterpolator. 1921 */ 1922 static class InverseZInterpolator implements TimeInterpolator { 1923 private ZInterpolator zInterpolator; 1924 public InverseZInterpolator(float foc) { 1925 zInterpolator = new ZInterpolator(foc); 1926 } 1927 public float getInterpolation(float input) { 1928 return 1 - zInterpolator.getInterpolation(1 - input); 1929 } 1930 } 1931 1932 /* 1933 * ZInterpolator compounded with an ease-out. 1934 */ 1935 static class ZoomOutInterpolator implements TimeInterpolator { 1936 private final DecelerateInterpolator decelerate = new DecelerateInterpolator(0.75f); 1937 private final ZInterpolator zInterpolator = new ZInterpolator(0.13f); 1938 1939 public float getInterpolation(float input) { 1940 return decelerate.getInterpolation(zInterpolator.getInterpolation(input)); 1941 } 1942 } 1943 1944 /* 1945 * InvereZInterpolator compounded with an ease-out. 1946 */ 1947 static class ZoomInInterpolator implements TimeInterpolator { 1948 private final InverseZInterpolator inverseZInterpolator = new InverseZInterpolator(0.35f); 1949 private final DecelerateInterpolator decelerate = new DecelerateInterpolator(3.0f); 1950 1951 public float getInterpolation(float input) { 1952 return decelerate.getInterpolation(inverseZInterpolator.getInterpolation(input)); 1953 } 1954 } 1955 1956 private final ZoomInInterpolator mZoomInInterpolator = new ZoomInInterpolator(); 1957 1958 /* 1959 * 1960 * We call these methods (onDragStartedWithItemSpans/onDragStartedWithSize) whenever we 1961 * start a drag in Launcher, regardless of whether the drag has ever entered the Workspace 1962 * 1963 * These methods mark the appropriate pages as accepting drops (which alters their visual 1964 * appearance). 1965 * 1966 */ 1967 public void onDragStartedWithItem(View v) { 1968 final Canvas canvas = new Canvas(); 1969 1970 // The outline is used to visualize where the item will land if dropped 1971 mDragOutline = createDragOutline(v, canvas, DRAG_BITMAP_PADDING); 1972 } 1973 1974 public void onDragStartedWithItem(PendingAddItemInfo info, Bitmap b, boolean clipAlpha) { 1975 final Canvas canvas = new Canvas(); 1976 1977 int[] size = estimateItemSize(info.spanX, info.spanY, info, false); 1978 1979 // The outline is used to visualize where the item will land if dropped 1980 mDragOutline = createDragOutline(b, canvas, DRAG_BITMAP_PADDING, size[0], 1981 size[1], clipAlpha); 1982 } 1983 1984 public void exitWidgetResizeMode() { 1985 DragLayer dragLayer = mLauncher.getDragLayer(); 1986 dragLayer.clearAllResizeFrames(); 1987 } 1988 1989 private void initAnimationArrays() { 1990 final int childCount = getChildCount(); 1991 if (mLastChildCount == childCount) return; 1992 1993 mOldBackgroundAlphas = new float[childCount]; 1994 mOldAlphas = new float[childCount]; 1995 mNewBackgroundAlphas = new float[childCount]; 1996 mNewAlphas = new float[childCount]; 1997 } 1998 1999 Animator getChangeStateAnimation(final State state, boolean animated) { 2000 return getChangeStateAnimation(state, animated, 0, -1); 2001 } 2002 2003 @Override 2004 protected void getOverviewModePages(int[] range) { 2005 int start = numCustomPages(); 2006 int end = getChildCount() - 1; 2007 2008 range[0] = Math.max(0, Math.min(start, getChildCount() - 1)); 2009 range[1] = Math.max(0, end); 2010 } 2011 2012 protected void onStartReordering() { 2013 super.onStartReordering(); 2014 showOutlines(); 2015 // Reordering handles its own animations, disable the automatic ones. 2016 disableLayoutTransitions(); 2017 } 2018 2019 protected void onEndReordering() { 2020 super.onEndReordering(); 2021 2022 hideOutlines(); 2023 mScreenOrder.clear(); 2024 int count = getChildCount(); 2025 for (int i = 0; i < count; i++) { 2026 CellLayout cl = ((CellLayout) getChildAt(i)); 2027 mScreenOrder.add(getIdForScreen(cl)); 2028 } 2029 2030 mLauncher.getModel().updateWorkspaceScreenOrder(mLauncher, mScreenOrder); 2031 2032 // Re-enable auto layout transitions for page deletion. 2033 enableLayoutTransitions(); 2034 } 2035 2036 public boolean isInOverviewMode() { 2037 return mState == State.OVERVIEW; 2038 } 2039 2040 public boolean enterOverviewMode() { 2041 if (mTouchState != TOUCH_STATE_REST) { 2042 return false; 2043 } 2044 enableOverviewMode(true, -1, true); 2045 return true; 2046 } 2047 2048 public void exitOverviewMode(boolean animated) { 2049 exitOverviewMode(-1, animated); 2050 } 2051 2052 public void exitOverviewMode(int snapPage, boolean animated) { 2053 enableOverviewMode(false, snapPage, animated); 2054 } 2055 2056 private void enableOverviewMode(boolean enable, int snapPage, boolean animated) { 2057 State finalState = Workspace.State.OVERVIEW; 2058 if (!enable) { 2059 finalState = Workspace.State.NORMAL; 2060 } 2061 2062 Animator workspaceAnim = getChangeStateAnimation(finalState, animated, 0, snapPage); 2063 if (workspaceAnim != null) { 2064 onTransitionPrepare(); 2065 workspaceAnim.addListener(new AnimatorListenerAdapter() { 2066 @Override 2067 public void onAnimationEnd(Animator arg0) { 2068 onTransitionEnd(); 2069 } 2070 }); 2071 workspaceAnim.start(); 2072 } 2073 } 2074 2075 int getOverviewModeTranslationY() { 2076 LauncherAppState app = LauncherAppState.getInstance(); 2077 DeviceProfile grid = app.getDynamicGrid().getDeviceProfile(); 2078 Rect overviewBar = grid.getOverviewModeButtonBarRect(); 2079 2080 int availableHeight = getViewportHeight(); 2081 int scaledHeight = (int) (mOverviewModeShrinkFactor * getNormalChildHeight()); 2082 int offsetFromTopEdge = (availableHeight - scaledHeight) / 2; 2083 int offsetToCenterInOverview = (availableHeight - mInsets.top - overviewBar.height() 2084 - scaledHeight) / 2; 2085 2086 return -offsetFromTopEdge + mInsets.top + offsetToCenterInOverview; 2087 } 2088 2089 boolean shouldVoiceButtonProxyBeVisible() { 2090 if (isOnOrMovingToCustomContent()) { 2091 return false; 2092 } 2093 if (mState != State.NORMAL) { 2094 return false; 2095 } 2096 return true; 2097 } 2098 2099 public void updateInteractionForState() { 2100 if (mState != State.NORMAL) { 2101 mLauncher.onInteractionBegin(); 2102 } else { 2103 mLauncher.onInteractionEnd(); 2104 } 2105 } 2106 2107 private void setState(State state) { 2108 mState = state; 2109 updateInteractionForState(); 2110 updateAccessibilityFlags(); 2111 } 2112 2113 private void updateAccessibilityFlags() { 2114 int accessible = mState == State.NORMAL ? 2115 ViewCompat.IMPORTANT_FOR_ACCESSIBILITY_YES : 2116 ViewCompat.IMPORTANT_FOR_ACCESSIBILITY_NO_HIDE_DESCENDANTS; 2117 setImportantForAccessibility(accessible); 2118 } 2119 2120 Animator getChangeStateAnimation(final State state, boolean animated, int delay, int snapPage) { 2121 if (mState == state) { 2122 return null; 2123 } 2124 2125 // Initialize animation arrays for the first time if necessary 2126 initAnimationArrays(); 2127 2128 AnimatorSet anim = animated ? LauncherAnimUtils.createAnimatorSet() : null; 2129 2130 final State oldState = mState; 2131 final boolean oldStateIsNormal = (oldState == State.NORMAL); 2132 final boolean oldStateIsSpringLoaded = (oldState == State.SPRING_LOADED); 2133 final boolean oldStateIsSmall = (oldState == State.SMALL); 2134 final boolean oldStateIsOverview = (oldState == State.OVERVIEW); 2135 setState(state); 2136 final boolean stateIsNormal = (state == State.NORMAL); 2137 final boolean stateIsSpringLoaded = (state == State.SPRING_LOADED); 2138 final boolean stateIsSmall = (state == State.SMALL); 2139 final boolean stateIsOverview = (state == State.OVERVIEW); 2140 float finalBackgroundAlpha = (stateIsSpringLoaded || stateIsOverview) ? 1.0f : 0f; 2141 float finalHotseatAndPageIndicatorAlpha = (stateIsOverview || stateIsSmall) ? 0f : 1f; 2142 float finalOverviewPanelAlpha = stateIsOverview ? 1f : 0f; 2143 float finalSearchBarAlpha = !stateIsNormal ? 0f : 1f; 2144 float finalWorkspaceTranslationY = stateIsOverview ? getOverviewModeTranslationY() : 0; 2145 2146 boolean workspaceToAllApps = (oldStateIsNormal && stateIsSmall); 2147 boolean allAppsToWorkspace = (oldStateIsSmall && stateIsNormal); 2148 boolean workspaceToOverview = (oldStateIsNormal && stateIsOverview); 2149 boolean overviewToWorkspace = (oldStateIsOverview && stateIsNormal); 2150 2151 mNewScale = 1.0f; 2152 2153 if (oldStateIsOverview) { 2154 disableFreeScroll(); 2155 } else if (stateIsOverview) { 2156 enableFreeScroll(); 2157 } 2158 2159 if (state != State.NORMAL) { 2160 if (stateIsSpringLoaded) { 2161 mNewScale = mSpringLoadedShrinkFactor; 2162 } else if (stateIsOverview) { 2163 mNewScale = mOverviewModeShrinkFactor; 2164 } else if (stateIsSmall){ 2165 mNewScale = mOverviewModeShrinkFactor - 0.3f; 2166 } 2167 if (workspaceToAllApps) { 2168 updateChildrenLayersEnabled(false); 2169 } 2170 } 2171 2172 final int duration; 2173 if (workspaceToAllApps) { 2174 duration = getResources().getInteger(R.integer.config_workspaceUnshrinkTime); 2175 } else if (workspaceToOverview || overviewToWorkspace) { 2176 duration = getResources().getInteger(R.integer.config_overviewTransitionTime); 2177 } else { 2178 duration = getResources().getInteger(R.integer.config_appsCustomizeWorkspaceShrinkTime); 2179 } 2180 2181 if (snapPage == -1) { 2182 snapPage = getPageNearestToCenterOfScreen(); 2183 } 2184 snapToPage(snapPage, duration, mZoomInInterpolator); 2185 2186 for (int i = 0; i < getChildCount(); i++) { 2187 final CellLayout cl = (CellLayout) getChildAt(i); 2188 boolean isCurrentPage = (i == snapPage); 2189 float initialAlpha = cl.getShortcutsAndWidgets().getAlpha(); 2190 float finalAlpha; 2191 if (stateIsSmall) { 2192 finalAlpha = 0f; 2193 } else if (stateIsNormal && mWorkspaceFadeInAdjacentScreens) { 2194 finalAlpha = (i == snapPage || i < numCustomPages()) ? 1f : 0f; 2195 } else { 2196 finalAlpha = 1f; 2197 } 2198 2199 // If we are animating to/from the small state, then hide the side pages and fade the 2200 // current page in 2201 if (!mIsSwitchingState) { 2202 if (workspaceToAllApps || allAppsToWorkspace) { 2203 if (allAppsToWorkspace && isCurrentPage) { 2204 initialAlpha = 0f; 2205 } else if (!isCurrentPage) { 2206 initialAlpha = finalAlpha = 0f; 2207 } 2208 cl.setShortcutAndWidgetAlpha(initialAlpha); 2209 } 2210 } 2211 2212 mOldAlphas[i] = initialAlpha; 2213 mNewAlphas[i] = finalAlpha; 2214 if (animated) { 2215 mOldBackgroundAlphas[i] = cl.getBackgroundAlpha(); 2216 mNewBackgroundAlphas[i] = finalBackgroundAlpha; 2217 } else { 2218 cl.setBackgroundAlpha(finalBackgroundAlpha); 2219 cl.setShortcutAndWidgetAlpha(finalAlpha); 2220 } 2221 } 2222 2223 final View searchBar = mLauncher.getQsbBar(); 2224 final View overviewPanel = mLauncher.getOverviewPanel(); 2225 final View hotseat = mLauncher.getHotseat(); 2226 final View pageIndicator = getPageIndicator(); 2227 if (animated) { 2228 anim.setDuration(duration); 2229 LauncherViewPropertyAnimator scale = new LauncherViewPropertyAnimator(this); 2230 scale.scaleX(mNewScale) 2231 .scaleY(mNewScale) 2232 .translationY(finalWorkspaceTranslationY) 2233 .setInterpolator(mZoomInInterpolator); 2234 anim.play(scale); 2235 for (int index = 0; index < getChildCount(); index++) { 2236 final int i = index; 2237 final CellLayout cl = (CellLayout) getChildAt(i); 2238 float currentAlpha = cl.getShortcutsAndWidgets().getAlpha(); 2239 if (mOldAlphas[i] == 0 && mNewAlphas[i] == 0) { 2240 cl.setBackgroundAlpha(mNewBackgroundAlphas[i]); 2241 cl.setShortcutAndWidgetAlpha(mNewAlphas[i]); 2242 } else { 2243 if (mOldAlphas[i] != mNewAlphas[i] || currentAlpha != mNewAlphas[i]) { 2244 LauncherViewPropertyAnimator alphaAnim = 2245 new LauncherViewPropertyAnimator(cl.getShortcutsAndWidgets()); 2246 alphaAnim.alpha(mNewAlphas[i]) 2247 .setInterpolator(mZoomInInterpolator); 2248 anim.play(alphaAnim); 2249 } 2250 if (mOldBackgroundAlphas[i] != 0 || 2251 mNewBackgroundAlphas[i] != 0) { 2252 ValueAnimator bgAnim = 2253 LauncherAnimUtils.ofFloat(cl, 0f, 1f); 2254 bgAnim.setInterpolator(mZoomInInterpolator); 2255 bgAnim.addUpdateListener(new LauncherAnimatorUpdateListener() { 2256 public void onAnimationUpdate(float a, float b) { 2257 cl.setBackgroundAlpha( 2258 a * mOldBackgroundAlphas[i] + 2259 b * mNewBackgroundAlphas[i]); 2260 } 2261 }); 2262 anim.play(bgAnim); 2263 } 2264 } 2265 } 2266 Animator pageIndicatorAlpha = null; 2267 if (pageIndicator != null) { 2268 pageIndicatorAlpha = new LauncherViewPropertyAnimator(pageIndicator) 2269 .alpha(finalHotseatAndPageIndicatorAlpha).withLayer(); 2270 pageIndicatorAlpha.addListener(new AlphaUpdateListener(pageIndicator)); 2271 } else { 2272 // create a dummy animation so we don't need to do null checks later 2273 pageIndicatorAlpha = ValueAnimator.ofFloat(0, 0); 2274 } 2275 2276 Animator hotseatAlpha = new LauncherViewPropertyAnimator(hotseat) 2277 .alpha(finalHotseatAndPageIndicatorAlpha).withLayer(); 2278 hotseatAlpha.addListener(new AlphaUpdateListener(hotseat)); 2279 2280 Animator searchBarAlpha = new LauncherViewPropertyAnimator(searchBar) 2281 .alpha(finalSearchBarAlpha).withLayer(); 2282 searchBarAlpha.addListener(new AlphaUpdateListener(searchBar)); 2283 2284 Animator overviewPanelAlpha = new LauncherViewPropertyAnimator(overviewPanel) 2285 .alpha(finalOverviewPanelAlpha).withLayer(); 2286 overviewPanelAlpha.addListener(new AlphaUpdateListener(overviewPanel)); 2287 2288 if (workspaceToOverview) { 2289 pageIndicatorAlpha.setInterpolator(new DecelerateInterpolator(2)); 2290 hotseatAlpha.setInterpolator(new DecelerateInterpolator(2)); 2291 overviewPanelAlpha.setInterpolator(null); 2292 } else if (overviewToWorkspace) { 2293 pageIndicatorAlpha.setInterpolator(null); 2294 hotseatAlpha.setInterpolator(null); 2295 overviewPanelAlpha.setInterpolator(new DecelerateInterpolator(2)); 2296 } 2297 searchBarAlpha.setInterpolator(null); 2298 2299 anim.play(overviewPanelAlpha); 2300 anim.play(hotseatAlpha); 2301 anim.play(searchBarAlpha); 2302 anim.play(pageIndicatorAlpha); 2303 anim.setStartDelay(delay); 2304 } else { 2305 overviewPanel.setAlpha(finalOverviewPanelAlpha); 2306 AlphaUpdateListener.updateVisibility(overviewPanel); 2307 hotseat.setAlpha(finalHotseatAndPageIndicatorAlpha); 2308 AlphaUpdateListener.updateVisibility(hotseat); 2309 if (pageIndicator != null) { 2310 pageIndicator.setAlpha(finalHotseatAndPageIndicatorAlpha); 2311 AlphaUpdateListener.updateVisibility(pageIndicator); 2312 } 2313 searchBar.setAlpha(finalSearchBarAlpha); 2314 AlphaUpdateListener.updateVisibility(searchBar); 2315 updateCustomContentVisibility(); 2316 setScaleX(mNewScale); 2317 setScaleY(mNewScale); 2318 setTranslationY(finalWorkspaceTranslationY); 2319 } 2320 mLauncher.updateVoiceButtonProxyVisible(false); 2321 2322 if (stateIsSpringLoaded) { 2323 // Right now we're covered by Apps Customize 2324 // Show the background gradient immediately, so the gradient will 2325 // be showing once AppsCustomize disappears 2326 animateBackgroundGradient(getResources().getInteger( 2327 R.integer.config_appsCustomizeSpringLoadedBgAlpha) / 100f, false); 2328 } else if (stateIsOverview) { 2329 animateBackgroundGradient(getResources().getInteger( 2330 R.integer.config_appsCustomizeSpringLoadedBgAlpha) / 100f, true); 2331 } else { 2332 // Fade the background gradient away 2333 animateBackgroundGradient(0f, animated); 2334 } 2335 return anim; 2336 } 2337 2338 static class AlphaUpdateListener implements AnimatorUpdateListener, AnimatorListener { 2339 View view; 2340 public AlphaUpdateListener(View v) { 2341 view = v; 2342 } 2343 2344 @Override 2345 public void onAnimationUpdate(ValueAnimator arg0) { 2346 updateVisibility(view); 2347 } 2348 2349 public static void updateVisibility(View view) { 2350 // We want to avoid the extra layout pass by setting the views to GONE unless 2351 // accessibility is on, in which case not setting them to GONE causes a glitch. 2352 int invisibleState = sAccessibilityEnabled ? GONE : INVISIBLE; 2353 if (view.getAlpha() < ALPHA_CUTOFF_THRESHOLD && view.getVisibility() != invisibleState) { 2354 view.setVisibility(invisibleState); 2355 } else if (view.getAlpha() > ALPHA_CUTOFF_THRESHOLD 2356 && view.getVisibility() != VISIBLE) { 2357 view.setVisibility(VISIBLE); 2358 } 2359 } 2360 2361 @Override 2362 public void onAnimationCancel(Animator arg0) { 2363 } 2364 2365 @Override 2366 public void onAnimationEnd(Animator arg0) { 2367 updateVisibility(view); 2368 } 2369 2370 @Override 2371 public void onAnimationRepeat(Animator arg0) { 2372 } 2373 2374 @Override 2375 public void onAnimationStart(Animator arg0) { 2376 // We want the views to be visible for animation, so fade-in/out is visible 2377 view.setVisibility(VISIBLE); 2378 } 2379 } 2380 2381 @Override 2382 public void onLauncherTransitionPrepare(Launcher l, boolean animated, boolean toWorkspace) { 2383 onTransitionPrepare(); 2384 } 2385 2386 @Override 2387 public void onLauncherTransitionStart(Launcher l, boolean animated, boolean toWorkspace) { 2388 } 2389 2390 @Override 2391 public void onLauncherTransitionStep(Launcher l, float t) { 2392 mTransitionProgress = t; 2393 } 2394 2395 @Override 2396 public void onLauncherTransitionEnd(Launcher l, boolean animated, boolean toWorkspace) { 2397 onTransitionEnd(); 2398 } 2399 2400 private void onTransitionPrepare() { 2401 mIsSwitchingState = true; 2402 2403 // Invalidate here to ensure that the pages are rendered during the state change transition. 2404 invalidate(); 2405 2406 updateChildrenLayersEnabled(false); 2407 hideCustomContentIfNecessary(); 2408 } 2409 2410 void updateCustomContentVisibility() { 2411 int visibility = mState == Workspace.State.NORMAL ? VISIBLE : INVISIBLE; 2412 if (hasCustomContent()) { 2413 mWorkspaceScreens.get(CUSTOM_CONTENT_SCREEN_ID).setVisibility(visibility); 2414 } 2415 } 2416 2417 void showCustomContentIfNecessary() { 2418 boolean show = mState == Workspace.State.NORMAL; 2419 if (show && hasCustomContent()) { 2420 mWorkspaceScreens.get(CUSTOM_CONTENT_SCREEN_ID).setVisibility(VISIBLE); 2421 } 2422 } 2423 2424 void hideCustomContentIfNecessary() { 2425 boolean hide = mState != Workspace.State.NORMAL; 2426 if (hide && hasCustomContent()) { 2427 disableLayoutTransitions(); 2428 mWorkspaceScreens.get(CUSTOM_CONTENT_SCREEN_ID).setVisibility(INVISIBLE); 2429 enableLayoutTransitions(); 2430 } 2431 } 2432 2433 private void onTransitionEnd() { 2434 mIsSwitchingState = false; 2435 updateChildrenLayersEnabled(false); 2436 // The code in getChangeStateAnimation to determine initialAlpha and finalAlpha will ensure 2437 // ensure that only the current page is visible during (and subsequently, after) the 2438 // transition animation. If fade adjacent pages is disabled, then re-enable the page 2439 // visibility after the transition animation. 2440 if (!mWorkspaceFadeInAdjacentScreens) { 2441 for (int i = 0; i < getChildCount(); i++) { 2442 final CellLayout cl = (CellLayout) getChildAt(i); 2443 cl.setShortcutAndWidgetAlpha(1f); 2444 } 2445 } else { 2446 for (int i = 0; i < numCustomPages(); i++) { 2447 final CellLayout cl = (CellLayout) getChildAt(i); 2448 cl.setShortcutAndWidgetAlpha(1f); 2449 } 2450 } 2451 showCustomContentIfNecessary(); 2452 } 2453 2454 @Override 2455 public View getContent() { 2456 return this; 2457 } 2458 2459 /** 2460 * Draw the View v into the given Canvas. 2461 * 2462 * @param v the view to draw 2463 * @param destCanvas the canvas to draw on 2464 * @param padding the horizontal and vertical padding to use when drawing 2465 */ 2466 private void drawDragView(View v, Canvas destCanvas, int padding, boolean pruneToDrawable) { 2467 final Rect clipRect = mTempRect; 2468 v.getDrawingRect(clipRect); 2469 2470 boolean textVisible = false; 2471 2472 destCanvas.save(); 2473 if (v instanceof TextView && pruneToDrawable) { 2474 Drawable d = ((TextView) v).getCompoundDrawables()[1]; 2475 clipRect.set(0, 0, d.getIntrinsicWidth() + padding, d.getIntrinsicHeight() + padding); 2476 destCanvas.translate(padding / 2, padding / 2); 2477 d.draw(destCanvas); 2478 } else { 2479 if (v instanceof FolderIcon) { 2480 // For FolderIcons the text can bleed into the icon area, and so we need to 2481 // hide the text completely (which can't be achieved by clipping). 2482 if (((FolderIcon) v).getTextVisible()) { 2483 ((FolderIcon) v).setTextVisible(false); 2484 textVisible = true; 2485 } 2486 } else if (v instanceof BubbleTextView) { 2487 final BubbleTextView tv = (BubbleTextView) v; 2488 clipRect.bottom = tv.getExtendedPaddingTop() - (int) BubbleTextView.PADDING_V + 2489 tv.getLayout().getLineTop(0); 2490 } else if (v instanceof TextView) { 2491 final TextView tv = (TextView) v; 2492 clipRect.bottom = tv.getExtendedPaddingTop() - tv.getCompoundDrawablePadding() + 2493 tv.getLayout().getLineTop(0); 2494 } 2495 destCanvas.translate(-v.getScrollX() + padding / 2, -v.getScrollY() + padding / 2); 2496 destCanvas.clipRect(clipRect, Op.REPLACE); 2497 v.draw(destCanvas); 2498 2499 // Restore text visibility of FolderIcon if necessary 2500 if (textVisible) { 2501 ((FolderIcon) v).setTextVisible(true); 2502 } 2503 } 2504 destCanvas.restore(); 2505 } 2506 2507 /** 2508 * Returns a new bitmap to show when the given View is being dragged around. 2509 * Responsibility for the bitmap is transferred to the caller. 2510 */ 2511 public Bitmap createDragBitmap(View v, Canvas canvas, int padding) { 2512 Bitmap b; 2513 2514 if (v instanceof TextView) { 2515 Drawable d = ((TextView) v).getCompoundDrawables()[1]; 2516 b = Bitmap.createBitmap(d.getIntrinsicWidth() + padding, 2517 d.getIntrinsicHeight() + padding, Bitmap.Config.ARGB_8888); 2518 } else { 2519 b = Bitmap.createBitmap( 2520 v.getWidth() + padding, v.getHeight() + padding, Bitmap.Config.ARGB_8888); 2521 } 2522 2523 canvas.setBitmap(b); 2524 drawDragView(v, canvas, padding, true); 2525 canvas.setBitmap(null); 2526 2527 return b; 2528 } 2529 2530 /** 2531 * Returns a new bitmap to be used as the object outline, e.g. to visualize the drop location. 2532 * Responsibility for the bitmap is transferred to the caller. 2533 */ 2534 private Bitmap createDragOutline(View v, Canvas canvas, int padding) { 2535 final int outlineColor = getResources().getColor(R.color.outline_color); 2536 final Bitmap b = Bitmap.createBitmap( 2537 v.getWidth() + padding, v.getHeight() + padding, Bitmap.Config.ARGB_8888); 2538 2539 canvas.setBitmap(b); 2540 drawDragView(v, canvas, padding, true); 2541 mOutlineHelper.applyMediumExpensiveOutlineWithBlur(b, canvas, outlineColor, outlineColor); 2542 canvas.setBitmap(null); 2543 return b; 2544 } 2545 2546 /** 2547 * Returns a new bitmap to be used as the object outline, e.g. to visualize the drop location. 2548 * Responsibility for the bitmap is transferred to the caller. 2549 */ 2550 private Bitmap createDragOutline(Bitmap orig, Canvas canvas, int padding, int w, int h, 2551 boolean clipAlpha) { 2552 final int outlineColor = getResources().getColor(R.color.outline_color); 2553 final Bitmap b = Bitmap.createBitmap(w, h, Bitmap.Config.ARGB_8888); 2554 canvas.setBitmap(b); 2555 2556 Rect src = new Rect(0, 0, orig.getWidth(), orig.getHeight()); 2557 float scaleFactor = Math.min((w - padding) / (float) orig.getWidth(), 2558 (h - padding) / (float) orig.getHeight()); 2559 int scaledWidth = (int) (scaleFactor * orig.getWidth()); 2560 int scaledHeight = (int) (scaleFactor * orig.getHeight()); 2561 Rect dst = new Rect(0, 0, scaledWidth, scaledHeight); 2562 2563 // center the image 2564 dst.offset((w - scaledWidth) / 2, (h - scaledHeight) / 2); 2565 2566 canvas.drawBitmap(orig, src, dst, null); 2567 mOutlineHelper.applyMediumExpensiveOutlineWithBlur(b, canvas, outlineColor, outlineColor, 2568 clipAlpha); 2569 canvas.setBitmap(null); 2570 2571 return b; 2572 } 2573 2574 void startDrag(CellLayout.CellInfo cellInfo) { 2575 View child = cellInfo.cell; 2576 2577 // Make sure the drag was started by a long press as opposed to a long click. 2578 if (!child.isInTouchMode()) { 2579 return; 2580 } 2581 2582 mDragInfo = cellInfo; 2583 child.setVisibility(INVISIBLE); 2584 CellLayout layout = (CellLayout) child.getParent().getParent(); 2585 layout.prepareChildForDrag(child); 2586 2587 child.clearFocus(); 2588 child.setPressed(false); 2589 2590 final Canvas canvas = new Canvas(); 2591 2592 // The outline is used to visualize where the item will land if dropped 2593 mDragOutline = createDragOutline(child, canvas, DRAG_BITMAP_PADDING); 2594 beginDragShared(child, this); 2595 } 2596 2597 public void beginDragShared(View child, DragSource source) { 2598 // The drag bitmap follows the touch point around on the screen 2599 final Bitmap b = createDragBitmap(child, new Canvas(), DRAG_BITMAP_PADDING); 2600 2601 final int bmpWidth = b.getWidth(); 2602 final int bmpHeight = b.getHeight(); 2603 2604 float scale = mLauncher.getDragLayer().getLocationInDragLayer(child, mTempXY); 2605 int dragLayerX = 2606 Math.round(mTempXY[0] - (bmpWidth - scale * child.getWidth()) / 2); 2607 int dragLayerY = 2608 Math.round(mTempXY[1] - (bmpHeight - scale * bmpHeight) / 2 2609 - DRAG_BITMAP_PADDING / 2); 2610 2611 LauncherAppState app = LauncherAppState.getInstance(); 2612 DeviceProfile grid = app.getDynamicGrid().getDeviceProfile(); 2613 Point dragVisualizeOffset = null; 2614 Rect dragRect = null; 2615 if (child instanceof BubbleTextView || child instanceof PagedViewIcon) { 2616 int iconSize = grid.iconSizePx; 2617 int top = child.getPaddingTop(); 2618 int left = (bmpWidth - iconSize) / 2; 2619 int right = left + iconSize; 2620 int bottom = top + iconSize; 2621 dragLayerY += top; 2622 // Note: The drag region is used to calculate drag layer offsets, but the 2623 // dragVisualizeOffset in addition to the dragRect (the size) to position the outline. 2624 dragVisualizeOffset = new Point(-DRAG_BITMAP_PADDING / 2, DRAG_BITMAP_PADDING / 2); 2625 dragRect = new Rect(left, top, right, bottom); 2626 } else if (child instanceof FolderIcon) { 2627 int previewSize = grid.folderIconSizePx; 2628 dragRect = new Rect(0, child.getPaddingTop(), child.getWidth(), previewSize); 2629 } 2630 2631 // Clear the pressed state if necessary 2632 if (child instanceof BubbleTextView) { 2633 BubbleTextView icon = (BubbleTextView) child; 2634 icon.clearPressedOrFocusedBackground(); 2635 } 2636 2637 if (child.getTag() == null || !(child.getTag() instanceof ItemInfo)) { 2638 String msg = "Drag started with a view that has no tag set. This " 2639 + "will cause a crash (issue 11627249) down the line. " 2640 + "View: " + child + " tag: " + child.getTag(); 2641 throw new IllegalStateException(msg); 2642 } 2643 2644 DragView dv = mDragController.startDrag(b, dragLayerX, dragLayerY, source, child.getTag(), 2645 DragController.DRAG_ACTION_MOVE, dragVisualizeOffset, dragRect, scale); 2646 dv.setIntrinsicIconScaleFactor(source.getIntrinsicIconScaleFactor()); 2647 2648 if (child.getParent() instanceof ShortcutAndWidgetContainer) { 2649 mDragSourceInternal = (ShortcutAndWidgetContainer) child.getParent(); 2650 } 2651 2652 b.recycle(); 2653 } 2654 2655 void addApplicationShortcut(ShortcutInfo info, CellLayout target, long container, long screenId, 2656 int cellX, int cellY, boolean insertAtFirst, int intersectX, int intersectY) { 2657 View view = mLauncher.createShortcut(R.layout.application, target, (ShortcutInfo) info); 2658 2659 final int[] cellXY = new int[2]; 2660 target.findCellForSpanThatIntersects(cellXY, 1, 1, intersectX, intersectY); 2661 addInScreen(view, container, screenId, cellXY[0], cellXY[1], 1, 1, insertAtFirst); 2662 2663 LauncherModel.addOrMoveItemInDatabase(mLauncher, info, container, screenId, cellXY[0], 2664 cellXY[1]); 2665 } 2666 2667 public boolean transitionStateShouldAllowDrop() { 2668 return ((!isSwitchingState() || mTransitionProgress > 0.5f) && mState != State.SMALL); 2669 } 2670 2671 /** 2672 * {@inheritDoc} 2673 */ 2674 public boolean acceptDrop(DragObject d) { 2675 // If it's an external drop (e.g. from All Apps), check if it should be accepted 2676 CellLayout dropTargetLayout = mDropToLayout; 2677 if (d.dragSource != this) { 2678 // Don't accept the drop if we're not over a screen at time of drop 2679 if (dropTargetLayout == null) { 2680 return false; 2681 } 2682 if (!transitionStateShouldAllowDrop()) return false; 2683 2684 mDragViewVisualCenter = getDragViewVisualCenter(d.x, d.y, d.xOffset, d.yOffset, 2685 d.dragView, mDragViewVisualCenter); 2686 2687 // We want the point to be mapped to the dragTarget. 2688 if (mLauncher.isHotseatLayout(dropTargetLayout)) { 2689 mapPointFromSelfToHotseatLayout(mLauncher.getHotseat(), mDragViewVisualCenter); 2690 } else { 2691 mapPointFromSelfToChild(dropTargetLayout, mDragViewVisualCenter, null); 2692 } 2693 2694 int spanX = 1; 2695 int spanY = 1; 2696 if (mDragInfo != null) { 2697 final CellLayout.CellInfo dragCellInfo = mDragInfo; 2698 spanX = dragCellInfo.spanX; 2699 spanY = dragCellInfo.spanY; 2700 } else { 2701 final ItemInfo dragInfo = (ItemInfo) d.dragInfo; 2702 spanX = dragInfo.spanX; 2703 spanY = dragInfo.spanY; 2704 } 2705 2706 int minSpanX = spanX; 2707 int minSpanY = spanY; 2708 if (d.dragInfo instanceof PendingAddWidgetInfo) { 2709 minSpanX = ((PendingAddWidgetInfo) d.dragInfo).minSpanX; 2710 minSpanY = ((PendingAddWidgetInfo) d.dragInfo).minSpanY; 2711 } 2712 2713 mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], 2714 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, dropTargetLayout, 2715 mTargetCell); 2716 float distance = dropTargetLayout.getDistanceFromCell(mDragViewVisualCenter[0], 2717 mDragViewVisualCenter[1], mTargetCell); 2718 if (mCreateUserFolderOnDrop && willCreateUserFolder((ItemInfo) d.dragInfo, 2719 dropTargetLayout, mTargetCell, distance, true)) { 2720 return true; 2721 } 2722 2723 if (mAddToExistingFolderOnDrop && willAddToExistingUserFolder((ItemInfo) d.dragInfo, 2724 dropTargetLayout, mTargetCell, distance)) { 2725 return true; 2726 } 2727 2728 int[] resultSpan = new int[2]; 2729 mTargetCell = dropTargetLayout.performReorder((int) mDragViewVisualCenter[0], 2730 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, spanX, spanY, 2731 null, mTargetCell, resultSpan, CellLayout.MODE_ACCEPT_DROP); 2732 boolean foundCell = mTargetCell[0] >= 0 && mTargetCell[1] >= 0; 2733 2734 // Don't accept the drop if there's no room for the item 2735 if (!foundCell) { 2736 // Don't show the message if we are dropping on the AllApps button and the hotseat 2737 // is full 2738 boolean isHotseat = mLauncher.isHotseatLayout(dropTargetLayout); 2739 if (mTargetCell != null && isHotseat) { 2740 Hotseat hotseat = mLauncher.getHotseat(); 2741 if (hotseat.isAllAppsButtonRank( 2742 hotseat.getOrderInHotseat(mTargetCell[0], mTargetCell[1]))) { 2743 return false; 2744 } 2745 } 2746 2747 mLauncher.showOutOfSpaceMessage(isHotseat); 2748 return false; 2749 } 2750 } 2751 2752 long screenId = getIdForScreen(dropTargetLayout); 2753 if (screenId == EXTRA_EMPTY_SCREEN_ID) { 2754 commitExtraEmptyScreen(); 2755 } 2756 2757 return true; 2758 } 2759 2760 boolean willCreateUserFolder(ItemInfo info, CellLayout target, int[] targetCell, float 2761 distance, boolean considerTimeout) { 2762 if (distance > mMaxDistanceForFolderCreation) return false; 2763 View dropOverView = target.getChildAt(targetCell[0], targetCell[1]); 2764 2765 if (dropOverView != null) { 2766 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) dropOverView.getLayoutParams(); 2767 if (lp.useTmpCoords && (lp.tmpCellX != lp.cellX || lp.tmpCellY != lp.tmpCellY)) { 2768 return false; 2769 } 2770 } 2771 2772 boolean hasntMoved = false; 2773 if (mDragInfo != null) { 2774 hasntMoved = dropOverView == mDragInfo.cell; 2775 } 2776 2777 if (dropOverView == null || hasntMoved || (considerTimeout && !mCreateUserFolderOnDrop)) { 2778 return false; 2779 } 2780 2781 boolean aboveShortcut = (dropOverView.getTag() instanceof ShortcutInfo); 2782 boolean willBecomeShortcut = 2783 (info.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPLICATION || 2784 info.itemType == LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT); 2785 2786 return (aboveShortcut && willBecomeShortcut); 2787 } 2788 2789 boolean willAddToExistingUserFolder(Object dragInfo, CellLayout target, int[] targetCell, 2790 float distance) { 2791 if (distance > mMaxDistanceForFolderCreation) return false; 2792 View dropOverView = target.getChildAt(targetCell[0], targetCell[1]); 2793 2794 if (dropOverView != null) { 2795 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) dropOverView.getLayoutParams(); 2796 if (lp.useTmpCoords && (lp.tmpCellX != lp.cellX || lp.tmpCellY != lp.tmpCellY)) { 2797 return false; 2798 } 2799 } 2800 2801 if (dropOverView instanceof FolderIcon) { 2802 FolderIcon fi = (FolderIcon) dropOverView; 2803 if (fi.acceptDrop(dragInfo)) { 2804 return true; 2805 } 2806 } 2807 return false; 2808 } 2809 2810 boolean createUserFolderIfNecessary(View newView, long container, CellLayout target, 2811 int[] targetCell, float distance, boolean external, DragView dragView, 2812 Runnable postAnimationRunnable) { 2813 if (distance > mMaxDistanceForFolderCreation) return false; 2814 View v = target.getChildAt(targetCell[0], targetCell[1]); 2815 2816 boolean hasntMoved = false; 2817 if (mDragInfo != null) { 2818 CellLayout cellParent = getParentCellLayoutForView(mDragInfo.cell); 2819 hasntMoved = (mDragInfo.cellX == targetCell[0] && 2820 mDragInfo.cellY == targetCell[1]) && (cellParent == target); 2821 } 2822 2823 if (v == null || hasntMoved || !mCreateUserFolderOnDrop) return false; 2824 mCreateUserFolderOnDrop = false; 2825 final long screenId = (targetCell == null) ? mDragInfo.screenId : getIdForScreen(target); 2826 2827 boolean aboveShortcut = (v.getTag() instanceof ShortcutInfo); 2828 boolean willBecomeShortcut = (newView.getTag() instanceof ShortcutInfo); 2829 2830 if (aboveShortcut && willBecomeShortcut) { 2831 ShortcutInfo sourceInfo = (ShortcutInfo) newView.getTag(); 2832 ShortcutInfo destInfo = (ShortcutInfo) v.getTag(); 2833 // if the drag started here, we need to remove it from the workspace 2834 if (!external) { 2835 getParentCellLayoutForView(mDragInfo.cell).removeView(mDragInfo.cell); 2836 } 2837 2838 Rect folderLocation = new Rect(); 2839 float scale = mLauncher.getDragLayer().getDescendantRectRelativeToSelf(v, folderLocation); 2840 target.removeView(v); 2841 2842 FolderIcon fi = 2843 mLauncher.addFolder(target, container, screenId, targetCell[0], targetCell[1]); 2844 destInfo.cellX = -1; 2845 destInfo.cellY = -1; 2846 sourceInfo.cellX = -1; 2847 sourceInfo.cellY = -1; 2848 2849 // If the dragView is null, we can't animate 2850 boolean animate = dragView != null; 2851 if (animate) { 2852 fi.performCreateAnimation(destInfo, v, sourceInfo, dragView, folderLocation, scale, 2853 postAnimationRunnable); 2854 } else { 2855 fi.addItem(destInfo); 2856 fi.addItem(sourceInfo); 2857 } 2858 return true; 2859 } 2860 return false; 2861 } 2862 2863 boolean addToExistingFolderIfNecessary(View newView, CellLayout target, int[] targetCell, 2864 float distance, DragObject d, boolean external) { 2865 if (distance > mMaxDistanceForFolderCreation) return false; 2866 2867 View dropOverView = target.getChildAt(targetCell[0], targetCell[1]); 2868 if (!mAddToExistingFolderOnDrop) return false; 2869 mAddToExistingFolderOnDrop = false; 2870 2871 if (dropOverView instanceof FolderIcon) { 2872 FolderIcon fi = (FolderIcon) dropOverView; 2873 if (fi.acceptDrop(d.dragInfo)) { 2874 fi.onDrop(d); 2875 2876 // if the drag started here, we need to remove it from the workspace 2877 if (!external) { 2878 getParentCellLayoutForView(mDragInfo.cell).removeView(mDragInfo.cell); 2879 } 2880 return true; 2881 } 2882 } 2883 return false; 2884 } 2885 2886 public void onDrop(final DragObject d) { 2887 mDragViewVisualCenter = getDragViewVisualCenter(d.x, d.y, d.xOffset, d.yOffset, d.dragView, 2888 mDragViewVisualCenter); 2889 2890 CellLayout dropTargetLayout = mDropToLayout; 2891 2892 // We want the point to be mapped to the dragTarget. 2893 if (dropTargetLayout != null) { 2894 if (mLauncher.isHotseatLayout(dropTargetLayout)) { 2895 mapPointFromSelfToHotseatLayout(mLauncher.getHotseat(), mDragViewVisualCenter); 2896 } else { 2897 mapPointFromSelfToChild(dropTargetLayout, mDragViewVisualCenter, null); 2898 } 2899 } 2900 2901 int snapScreen = -1; 2902 boolean resizeOnDrop = false; 2903 if (d.dragSource != this) { 2904 final int[] touchXY = new int[] { (int) mDragViewVisualCenter[0], 2905 (int) mDragViewVisualCenter[1] }; 2906 onDropExternal(touchXY, d.dragInfo, dropTargetLayout, false, d); 2907 } else if (mDragInfo != null) { 2908 final View cell = mDragInfo.cell; 2909 2910 Runnable resizeRunnable = null; 2911 if (dropTargetLayout != null && !d.cancelled) { 2912 // Move internally 2913 boolean hasMovedLayouts = (getParentCellLayoutForView(cell) != dropTargetLayout); 2914 boolean hasMovedIntoHotseat = mLauncher.isHotseatLayout(dropTargetLayout); 2915 long container = hasMovedIntoHotseat ? 2916 LauncherSettings.Favorites.CONTAINER_HOTSEAT : 2917 LauncherSettings.Favorites.CONTAINER_DESKTOP; 2918 long screenId = (mTargetCell[0] < 0) ? 2919 mDragInfo.screenId : getIdForScreen(dropTargetLayout); 2920 int spanX = mDragInfo != null ? mDragInfo.spanX : 1; 2921 int spanY = mDragInfo != null ? mDragInfo.spanY : 1; 2922 // First we find the cell nearest to point at which the item is 2923 // dropped, without any consideration to whether there is an item there. 2924 2925 mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], (int) 2926 mDragViewVisualCenter[1], spanX, spanY, dropTargetLayout, mTargetCell); 2927 float distance = dropTargetLayout.getDistanceFromCell(mDragViewVisualCenter[0], 2928 mDragViewVisualCenter[1], mTargetCell); 2929 2930 // If the item being dropped is a shortcut and the nearest drop 2931 // cell also contains a shortcut, then create a folder with the two shortcuts. 2932 if (!mInScrollArea && createUserFolderIfNecessary(cell, container, 2933 dropTargetLayout, mTargetCell, distance, false, d.dragView, null)) { 2934 removeExtraEmptyScreen(true, null, 0, true); 2935 return; 2936 } 2937 2938 if (addToExistingFolderIfNecessary(cell, dropTargetLayout, mTargetCell, 2939 distance, d, false)) { 2940 removeExtraEmptyScreen(true, null, 0, true); 2941 return; 2942 } 2943 2944 // Aside from the special case where we're dropping a shortcut onto a shortcut, 2945 // we need to find the nearest cell location that is vacant 2946 ItemInfo item = (ItemInfo) d.dragInfo; 2947 int minSpanX = item.spanX; 2948 int minSpanY = item.spanY; 2949 if (item.minSpanX > 0 && item.minSpanY > 0) { 2950 minSpanX = item.minSpanX; 2951 minSpanY = item.minSpanY; 2952 } 2953 2954 int[] resultSpan = new int[2]; 2955 mTargetCell = dropTargetLayout.performReorder((int) mDragViewVisualCenter[0], 2956 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, spanX, spanY, cell, 2957 mTargetCell, resultSpan, CellLayout.MODE_ON_DROP); 2958 2959 boolean foundCell = mTargetCell[0] >= 0 && mTargetCell[1] >= 0; 2960 2961 // if the widget resizes on drop 2962 if (foundCell && (cell instanceof AppWidgetHostView) && 2963 (resultSpan[0] != item.spanX || resultSpan[1] != item.spanY)) { 2964 resizeOnDrop = true; 2965 item.spanX = resultSpan[0]; 2966 item.spanY = resultSpan[1]; 2967 AppWidgetHostView awhv = (AppWidgetHostView) cell; 2968 AppWidgetResizeFrame.updateWidgetSizeRanges(awhv, mLauncher, resultSpan[0], 2969 resultSpan[1]); 2970 } 2971 2972 if (getScreenIdForPageIndex(mCurrentPage) != screenId && !hasMovedIntoHotseat) { 2973 snapScreen = getPageIndexForScreenId(screenId); 2974 snapToPage(snapScreen); 2975 } 2976 2977 if (foundCell) { 2978 final ItemInfo info = (ItemInfo) cell.getTag(); 2979 if (hasMovedLayouts) { 2980 // Reparent the view 2981 getParentCellLayoutForView(cell).removeView(cell); 2982 addInScreen(cell, container, screenId, mTargetCell[0], mTargetCell[1], 2983 info.spanX, info.spanY); 2984 } 2985 2986 // update the item's position after drop 2987 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) cell.getLayoutParams(); 2988 lp.cellX = lp.tmpCellX = mTargetCell[0]; 2989 lp.cellY = lp.tmpCellY = mTargetCell[1]; 2990 lp.cellHSpan = item.spanX; 2991 lp.cellVSpan = item.spanY; 2992 lp.isLockedToGrid = true; 2993 2994 if (container != LauncherSettings.Favorites.CONTAINER_HOTSEAT && 2995 cell instanceof LauncherAppWidgetHostView) { 2996 final CellLayout cellLayout = dropTargetLayout; 2997 // We post this call so that the widget has a chance to be placed 2998 // in its final location 2999 3000 final LauncherAppWidgetHostView hostView = (LauncherAppWidgetHostView) cell; 3001 AppWidgetProviderInfo pinfo = hostView.getAppWidgetInfo(); 3002 if (pinfo != null && 3003 pinfo.resizeMode != AppWidgetProviderInfo.RESIZE_NONE) { 3004 final Runnable addResizeFrame = new Runnable() { 3005 public void run() { 3006 DragLayer dragLayer = mLauncher.getDragLayer(); 3007 dragLayer.addResizeFrame(info, hostView, cellLayout); 3008 } 3009 }; 3010 resizeRunnable = (new Runnable() { 3011 public void run() { 3012 if (!isPageMoving()) { 3013 addResizeFrame.run(); 3014 } else { 3015 mDelayedResizeRunnable = addResizeFrame; 3016 } 3017 } 3018 }); 3019 } 3020 } 3021 3022 LauncherModel.modifyItemInDatabase(mLauncher, info, container, screenId, lp.cellX, 3023 lp.cellY, item.spanX, item.spanY); 3024 } else { 3025 // If we can't find a drop location, we return the item to its original position 3026 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) cell.getLayoutParams(); 3027 mTargetCell[0] = lp.cellX; 3028 mTargetCell[1] = lp.cellY; 3029 CellLayout layout = (CellLayout) cell.getParent().getParent(); 3030 layout.markCellsAsOccupiedForView(cell); 3031 } 3032 } 3033 3034 final CellLayout parent = (CellLayout) cell.getParent().getParent(); 3035 final Runnable finalResizeRunnable = resizeRunnable; 3036 // Prepare it to be animated into its new position 3037 // This must be called after the view has been re-parented 3038 final Runnable onCompleteRunnable = new Runnable() { 3039 @Override 3040 public void run() { 3041 mAnimatingViewIntoPlace = false; 3042 updateChildrenLayersEnabled(false); 3043 if (finalResizeRunnable != null) { 3044 finalResizeRunnable.run(); 3045 } 3046 removeExtraEmptyScreen(true, null, 0, true); 3047 } 3048 }; 3049 mAnimatingViewIntoPlace = true; 3050 if (d.dragView.hasDrawn()) { 3051 final ItemInfo info = (ItemInfo) cell.getTag(); 3052 if (info.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET) { 3053 int animationType = resizeOnDrop ? ANIMATE_INTO_POSITION_AND_RESIZE : 3054 ANIMATE_INTO_POSITION_AND_DISAPPEAR; 3055 animateWidgetDrop(info, parent, d.dragView, 3056 onCompleteRunnable, animationType, cell, false); 3057 } else { 3058 int duration = snapScreen < 0 ? -1 : ADJACENT_SCREEN_DROP_DURATION; 3059 mLauncher.getDragLayer().animateViewIntoPosition(d.dragView, cell, duration, 3060 onCompleteRunnable, this); 3061 } 3062 } else { 3063 d.deferDragViewCleanupPostAnimation = false; 3064 cell.setVisibility(VISIBLE); 3065 } 3066 parent.onDropChild(cell); 3067 } 3068 } 3069 3070 public void setFinalScrollForPageChange(int pageIndex) { 3071 CellLayout cl = (CellLayout) getChildAt(pageIndex); 3072 if (cl != null) { 3073 mSavedScrollX = getScrollX(); 3074 mSavedTranslationX = cl.getTranslationX(); 3075 mSavedRotationY = cl.getRotationY(); 3076 final int newX = getScrollForPage(pageIndex); 3077 setScrollX(newX); 3078 cl.setTranslationX(0f); 3079 cl.setRotationY(0f); 3080 } 3081 } 3082 3083 public void resetFinalScrollForPageChange(int pageIndex) { 3084 if (pageIndex >= 0) { 3085 CellLayout cl = (CellLayout) getChildAt(pageIndex); 3086 setScrollX(mSavedScrollX); 3087 cl.setTranslationX(mSavedTranslationX); 3088 cl.setRotationY(mSavedRotationY); 3089 } 3090 } 3091 3092 public void getViewLocationRelativeToSelf(View v, int[] location) { 3093 getLocationInWindow(location); 3094 int x = location[0]; 3095 int y = location[1]; 3096 3097 v.getLocationInWindow(location); 3098 int vX = location[0]; 3099 int vY = location[1]; 3100 3101 location[0] = vX - x; 3102 location[1] = vY - y; 3103 } 3104 3105 public void onDragEnter(DragObject d) { 3106 mDragEnforcer.onDragEnter(); 3107 mCreateUserFolderOnDrop = false; 3108 mAddToExistingFolderOnDrop = false; 3109 3110 mDropToLayout = null; 3111 CellLayout layout = getCurrentDropLayout(); 3112 setCurrentDropLayout(layout); 3113 setCurrentDragOverlappingLayout(layout); 3114 3115 // Because we don't have space in the Phone UI (the CellLayouts run to the edge) we 3116 // don't need to show the outlines 3117 if (LauncherAppState.getInstance().isScreenLarge()) { 3118 showOutlines(); 3119 } 3120 } 3121 3122 /** Return a rect that has the cellWidth/cellHeight (left, top), and 3123 * widthGap/heightGap (right, bottom) */ 3124 static Rect getCellLayoutMetrics(Launcher launcher, int orientation) { 3125 LauncherAppState app = LauncherAppState.getInstance(); 3126 DeviceProfile grid = app.getDynamicGrid().getDeviceProfile(); 3127 3128 Resources res = launcher.getResources(); 3129 Display display = launcher.getWindowManager().getDefaultDisplay(); 3130 Point smallestSize = new Point(); 3131 Point largestSize = new Point(); 3132 display.getCurrentSizeRange(smallestSize, largestSize); 3133 int countX = (int) grid.numColumns; 3134 int countY = (int) grid.numRows; 3135 if (orientation == CellLayout.LANDSCAPE) { 3136 if (mLandscapeCellLayoutMetrics == null) { 3137 Rect padding = grid.getWorkspacePadding(CellLayout.LANDSCAPE); 3138 int width = largestSize.x - padding.left - padding.right; 3139 int height = smallestSize.y - padding.top - padding.bottom; 3140 mLandscapeCellLayoutMetrics = new Rect(); 3141 mLandscapeCellLayoutMetrics.set( 3142 grid.calculateCellWidth(width, countX), 3143 grid.calculateCellHeight(height, countY), 0, 0); 3144 } 3145 return mLandscapeCellLayoutMetrics; 3146 } else if (orientation == CellLayout.PORTRAIT) { 3147 if (mPortraitCellLayoutMetrics == null) { 3148 Rect padding = grid.getWorkspacePadding(CellLayout.PORTRAIT); 3149 int width = smallestSize.x - padding.left - padding.right; 3150 int height = largestSize.y - padding.top - padding.bottom; 3151 mPortraitCellLayoutMetrics = new Rect(); 3152 mPortraitCellLayoutMetrics.set( 3153 grid.calculateCellWidth(width, countX), 3154 grid.calculateCellHeight(height, countY), 0, 0); 3155 } 3156 return mPortraitCellLayoutMetrics; 3157 } 3158 return null; 3159 } 3160 3161 public void onDragExit(DragObject d) { 3162 mDragEnforcer.onDragExit(); 3163 3164 // Here we store the final page that will be dropped to, if the workspace in fact 3165 // receives the drop 3166 if (mInScrollArea) { 3167 if (isPageMoving()) { 3168 // If the user drops while the page is scrolling, we should use that page as the 3169 // destination instead of the page that is being hovered over. 3170 mDropToLayout = (CellLayout) getPageAt(getNextPage()); 3171 } else { 3172 mDropToLayout = mDragOverlappingLayout; 3173 } 3174 } else { 3175 mDropToLayout = mDragTargetLayout; 3176 } 3177 3178 if (mDragMode == DRAG_MODE_CREATE_FOLDER) { 3179 mCreateUserFolderOnDrop = true; 3180 } else if (mDragMode == DRAG_MODE_ADD_TO_FOLDER) { 3181 mAddToExistingFolderOnDrop = true; 3182 } 3183 3184 // Reset the scroll area and previous drag target 3185 onResetScrollArea(); 3186 setCurrentDropLayout(null); 3187 setCurrentDragOverlappingLayout(null); 3188 3189 mSpringLoadedDragController.cancel(); 3190 3191 if (!mIsPageMoving) { 3192 hideOutlines(); 3193 } 3194 } 3195 3196 void setCurrentDropLayout(CellLayout layout) { 3197 if (mDragTargetLayout != null) { 3198 mDragTargetLayout.revertTempState(); 3199 mDragTargetLayout.onDragExit(); 3200 } 3201 mDragTargetLayout = layout; 3202 if (mDragTargetLayout != null) { 3203 mDragTargetLayout.onDragEnter(); 3204 } 3205 cleanupReorder(true); 3206 cleanupFolderCreation(); 3207 setCurrentDropOverCell(-1, -1); 3208 } 3209 3210 void setCurrentDragOverlappingLayout(CellLayout layout) { 3211 if (mDragOverlappingLayout != null) { 3212 mDragOverlappingLayout.setIsDragOverlapping(false); 3213 } 3214 mDragOverlappingLayout = layout; 3215 if (mDragOverlappingLayout != null) { 3216 mDragOverlappingLayout.setIsDragOverlapping(true); 3217 } 3218 invalidate(); 3219 } 3220 3221 void setCurrentDropOverCell(int x, int y) { 3222 if (x != mDragOverX || y != mDragOverY) { 3223 mDragOverX = x; 3224 mDragOverY = y; 3225 setDragMode(DRAG_MODE_NONE); 3226 } 3227 } 3228 3229 void setDragMode(int dragMode) { 3230 if (dragMode != mDragMode) { 3231 if (dragMode == DRAG_MODE_NONE) { 3232 cleanupAddToFolder(); 3233 // We don't want to cancel the re-order alarm every time the target cell changes 3234 // as this feels to slow / unresponsive. 3235 cleanupReorder(false); 3236 cleanupFolderCreation(); 3237 } else if (dragMode == DRAG_MODE_ADD_TO_FOLDER) { 3238 cleanupReorder(true); 3239 cleanupFolderCreation(); 3240 } else if (dragMode == DRAG_MODE_CREATE_FOLDER) { 3241 cleanupAddToFolder(); 3242 cleanupReorder(true); 3243 } else if (dragMode == DRAG_MODE_REORDER) { 3244 cleanupAddToFolder(); 3245 cleanupFolderCreation(); 3246 } 3247 mDragMode = dragMode; 3248 } 3249 } 3250 3251 private void cleanupFolderCreation() { 3252 if (mDragFolderRingAnimator != null) { 3253 mDragFolderRingAnimator.animateToNaturalState(); 3254 mDragFolderRingAnimator = null; 3255 } 3256 mFolderCreationAlarm.setOnAlarmListener(null); 3257 mFolderCreationAlarm.cancelAlarm(); 3258 } 3259 3260 private void cleanupAddToFolder() { 3261 if (mDragOverFolderIcon != null) { 3262 mDragOverFolderIcon.onDragExit(null); 3263 mDragOverFolderIcon = null; 3264 } 3265 } 3266 3267 private void cleanupReorder(boolean cancelAlarm) { 3268 // Any pending reorders are canceled 3269 if (cancelAlarm) { 3270 mReorderAlarm.cancelAlarm(); 3271 } 3272 mLastReorderX = -1; 3273 mLastReorderY = -1; 3274 } 3275 3276 /* 3277 * 3278 * Convert the 2D coordinate xy from the parent View's coordinate space to this CellLayout's 3279 * coordinate space. The argument xy is modified with the return result. 3280 * 3281 * if cachedInverseMatrix is not null, this method will just use that matrix instead of 3282 * computing it itself; we use this to avoid redundant matrix inversions in 3283 * findMatchingPageForDragOver 3284 * 3285 */ 3286 void mapPointFromSelfToChild(View v, float[] xy, Matrix cachedInverseMatrix) { 3287 xy[0] = xy[0] - v.getLeft(); 3288 xy[1] = xy[1] - v.getTop(); 3289 } 3290 3291 boolean isPointInSelfOverHotseat(int x, int y, Rect r) { 3292 if (r == null) { 3293 r = new Rect(); 3294 } 3295 mTempPt[0] = x; 3296 mTempPt[1] = y; 3297 mLauncher.getDragLayer().getDescendantCoordRelativeToSelf(this, mTempPt, true); 3298 3299 LauncherAppState app = LauncherAppState.getInstance(); 3300 DeviceProfile grid = app.getDynamicGrid().getDeviceProfile(); 3301 r = grid.getHotseatRect(); 3302 if (r.contains(mTempPt[0], mTempPt[1])) { 3303 return true; 3304 } 3305 return false; 3306 } 3307 3308 void mapPointFromSelfToHotseatLayout(Hotseat hotseat, float[] xy) { 3309 mTempPt[0] = (int) xy[0]; 3310 mTempPt[1] = (int) xy[1]; 3311 mLauncher.getDragLayer().getDescendantCoordRelativeToSelf(this, mTempPt, true); 3312 mLauncher.getDragLayer().mapCoordInSelfToDescendent(hotseat.getLayout(), mTempPt); 3313 3314 xy[0] = mTempPt[0]; 3315 xy[1] = mTempPt[1]; 3316 } 3317 3318 /* 3319 * 3320 * Convert the 2D coordinate xy from this CellLayout's coordinate space to 3321 * the parent View's coordinate space. The argument xy is modified with the return result. 3322 * 3323 */ 3324 void mapPointFromChildToSelf(View v, float[] xy) { 3325 xy[0] += v.getLeft(); 3326 xy[1] += v.getTop(); 3327 } 3328 3329 static private float squaredDistance(float[] point1, float[] point2) { 3330 float distanceX = point1[0] - point2[0]; 3331 float distanceY = point2[1] - point2[1]; 3332 return distanceX * distanceX + distanceY * distanceY; 3333 } 3334 3335 /* 3336 * 3337 * This method returns the CellLayout that is currently being dragged to. In order to drag 3338 * to a CellLayout, either the touch point must be directly over the CellLayout, or as a second 3339 * strategy, we see if the dragView is overlapping any CellLayout and choose the closest one 3340 * 3341 * Return null if no CellLayout is currently being dragged over 3342 * 3343 */ 3344 private CellLayout findMatchingPageForDragOver( 3345 DragView dragView, float originX, float originY, boolean exact) { 3346 // We loop through all the screens (ie CellLayouts) and see which ones overlap 3347 // with the item being dragged and then choose the one that's closest to the touch point 3348 final int screenCount = getChildCount(); 3349 CellLayout bestMatchingScreen = null; 3350 float smallestDistSoFar = Float.MAX_VALUE; 3351 3352 for (int i = 0; i < screenCount; i++) { 3353 // The custom content screen is not a valid drag over option 3354 if (mScreenOrder.get(i) == CUSTOM_CONTENT_SCREEN_ID) { 3355 continue; 3356 } 3357 3358 CellLayout cl = (CellLayout) getChildAt(i); 3359 3360 final float[] touchXy = {originX, originY}; 3361 // Transform the touch coordinates to the CellLayout's local coordinates 3362 // If the touch point is within the bounds of the cell layout, we can return immediately 3363 cl.getMatrix().invert(mTempInverseMatrix); 3364 mapPointFromSelfToChild(cl, touchXy, mTempInverseMatrix); 3365 3366 if (touchXy[0] >= 0 && touchXy[0] <= cl.getWidth() && 3367 touchXy[1] >= 0 && touchXy[1] <= cl.getHeight()) { 3368 return cl; 3369 } 3370 3371 if (!exact) { 3372 // Get the center of the cell layout in screen coordinates 3373 final float[] cellLayoutCenter = mTempCellLayoutCenterCoordinates; 3374 cellLayoutCenter[0] = cl.getWidth()/2; 3375 cellLayoutCenter[1] = cl.getHeight()/2; 3376 mapPointFromChildToSelf(cl, cellLayoutCenter); 3377 3378 touchXy[0] = originX; 3379 touchXy[1] = originY; 3380 3381 // Calculate the distance between the center of the CellLayout 3382 // and the touch point 3383 float dist = squaredDistance(touchXy, cellLayoutCenter); 3384 3385 if (dist < smallestDistSoFar) { 3386 smallestDistSoFar = dist; 3387 bestMatchingScreen = cl; 3388 } 3389 } 3390 } 3391 return bestMatchingScreen; 3392 } 3393 3394 // This is used to compute the visual center of the dragView. This point is then 3395 // used to visualize drop locations and determine where to drop an item. The idea is that 3396 // the visual center represents the user's interpretation of where the item is, and hence 3397 // is the appropriate point to use when determining drop location. 3398 private float[] getDragViewVisualCenter(int x, int y, int xOffset, int yOffset, 3399 DragView dragView, float[] recycle) { 3400 float res[]; 3401 if (recycle == null) { 3402 res = new float[2]; 3403 } else { 3404 res = recycle; 3405 } 3406 3407 // First off, the drag view has been shifted in a way that is not represented in the 3408 // x and y values or the x/yOffsets. Here we account for that shift. 3409 x += getResources().getDimensionPixelSize(R.dimen.dragViewOffsetX); 3410 y += getResources().getDimensionPixelSize(R.dimen.dragViewOffsetY); 3411 3412 // These represent the visual top and left of drag view if a dragRect was provided. 3413 // If a dragRect was not provided, then they correspond to the actual view left and 3414 // top, as the dragRect is in that case taken to be the entire dragView. 3415 // R.dimen.dragViewOffsetY. 3416 int left = x - xOffset; 3417 int top = y - yOffset; 3418 3419 // In order to find the visual center, we shift by half the dragRect 3420 res[0] = left + dragView.getDragRegion().width() / 2; 3421 res[1] = top + dragView.getDragRegion().height() / 2; 3422 3423 return res; 3424 } 3425 3426 private boolean isDragWidget(DragObject d) { 3427 return (d.dragInfo instanceof LauncherAppWidgetInfo || 3428 d.dragInfo instanceof PendingAddWidgetInfo); 3429 } 3430 private boolean isExternalDragWidget(DragObject d) { 3431 return d.dragSource != this && isDragWidget(d); 3432 } 3433 3434 public void onDragOver(DragObject d) { 3435 // Skip drag over events while we are dragging over side pages 3436 if (mInScrollArea || mIsSwitchingState || mState == State.SMALL) return; 3437 3438 Rect r = new Rect(); 3439 CellLayout layout = null; 3440 ItemInfo item = (ItemInfo) d.dragInfo; 3441 3442 // Ensure that we have proper spans for the item that we are dropping 3443 if (item.spanX < 0 || item.spanY < 0) throw new RuntimeException("Improper spans found"); 3444 mDragViewVisualCenter = getDragViewVisualCenter(d.x, d.y, d.xOffset, d.yOffset, 3445 d.dragView, mDragViewVisualCenter); 3446 3447 final View child = (mDragInfo == null) ? null : mDragInfo.cell; 3448 // Identify whether we have dragged over a side page 3449 if (isSmall()) { 3450 if (mLauncher.getHotseat() != null && !isExternalDragWidget(d)) { 3451 if (isPointInSelfOverHotseat(d.x, d.y, r)) { 3452 layout = mLauncher.getHotseat().getLayout(); 3453 } 3454 } 3455 if (layout == null) { 3456 layout = findMatchingPageForDragOver(d.dragView, d.x, d.y, false); 3457 } 3458 if (layout != mDragTargetLayout) { 3459 setCurrentDropLayout(layout); 3460 setCurrentDragOverlappingLayout(layout); 3461 3462 boolean isInSpringLoadedMode = (mState == State.SPRING_LOADED); 3463 if (isInSpringLoadedMode) { 3464 if (mLauncher.isHotseatLayout(layout)) { 3465 mSpringLoadedDragController.cancel(); 3466 } else { 3467 mSpringLoadedDragController.setAlarm(mDragTargetLayout); 3468 } 3469 } 3470 } 3471 } else { 3472 // Test to see if we are over the hotseat otherwise just use the current page 3473 if (mLauncher.getHotseat() != null && !isDragWidget(d)) { 3474 if (isPointInSelfOverHotseat(d.x, d.y, r)) { 3475 layout = mLauncher.getHotseat().getLayout(); 3476 } 3477 } 3478 if (layout == null) { 3479 layout = getCurrentDropLayout(); 3480 } 3481 if (layout != mDragTargetLayout) { 3482 setCurrentDropLayout(layout); 3483 setCurrentDragOverlappingLayout(layout); 3484 } 3485 } 3486 3487 // Handle the drag over 3488 if (mDragTargetLayout != null) { 3489 // We want the point to be mapped to the dragTarget. 3490 if (mLauncher.isHotseatLayout(mDragTargetLayout)) { 3491 mapPointFromSelfToHotseatLayout(mLauncher.getHotseat(), mDragViewVisualCenter); 3492 } else { 3493 mapPointFromSelfToChild(mDragTargetLayout, mDragViewVisualCenter, null); 3494 } 3495 3496 ItemInfo info = (ItemInfo) d.dragInfo; 3497 3498 int minSpanX = item.spanX; 3499 int minSpanY = item.spanY; 3500 if (item.minSpanX > 0 && item.minSpanY > 0) { 3501 minSpanX = item.minSpanX; 3502 minSpanY = item.minSpanY; 3503 } 3504 3505 mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], 3506 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, 3507 mDragTargetLayout, mTargetCell); 3508 int reorderX = mTargetCell[0]; 3509 int reorderY = mTargetCell[1]; 3510 3511 setCurrentDropOverCell(mTargetCell[0], mTargetCell[1]); 3512 3513 float targetCellDistance = mDragTargetLayout.getDistanceFromCell( 3514 mDragViewVisualCenter[0], mDragViewVisualCenter[1], mTargetCell); 3515 3516 final View dragOverView = mDragTargetLayout.getChildAt(mTargetCell[0], 3517 mTargetCell[1]); 3518 3519 manageFolderFeedback(info, mDragTargetLayout, mTargetCell, 3520 targetCellDistance, dragOverView); 3521 3522 boolean nearestDropOccupied = mDragTargetLayout.isNearestDropLocationOccupied((int) 3523 mDragViewVisualCenter[0], (int) mDragViewVisualCenter[1], item.spanX, 3524 item.spanY, child, mTargetCell); 3525 3526 if (!nearestDropOccupied) { 3527 mDragTargetLayout.visualizeDropLocation(child, mDragOutline, 3528 (int) mDragViewVisualCenter[0], (int) mDragViewVisualCenter[1], 3529 mTargetCell[0], mTargetCell[1], item.spanX, item.spanY, false, 3530 d.dragView.getDragVisualizeOffset(), d.dragView.getDragRegion()); 3531 } else if ((mDragMode == DRAG_MODE_NONE || mDragMode == DRAG_MODE_REORDER) 3532 && !mReorderAlarm.alarmPending() && (mLastReorderX != reorderX || 3533 mLastReorderY != reorderY)) { 3534 3535 int[] resultSpan = new int[2]; 3536 mDragTargetLayout.performReorder((int) mDragViewVisualCenter[0], 3537 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, item.spanX, item.spanY, 3538 child, mTargetCell, resultSpan, CellLayout.MODE_SHOW_REORDER_HINT); 3539 3540 // Otherwise, if we aren't adding to or creating a folder and there's no pending 3541 // reorder, then we schedule a reorder 3542 ReorderAlarmListener listener = new ReorderAlarmListener(mDragViewVisualCenter, 3543 minSpanX, minSpanY, item.spanX, item.spanY, d.dragView, child); 3544 mReorderAlarm.setOnAlarmListener(listener); 3545 mReorderAlarm.setAlarm(REORDER_TIMEOUT); 3546 } 3547 3548 if (mDragMode == DRAG_MODE_CREATE_FOLDER || mDragMode == DRAG_MODE_ADD_TO_FOLDER || 3549 !nearestDropOccupied) { 3550 if (mDragTargetLayout != null) { 3551 mDragTargetLayout.revertTempState(); 3552 } 3553 } 3554 } 3555 } 3556 3557 private void manageFolderFeedback(ItemInfo info, CellLayout targetLayout, 3558 int[] targetCell, float distance, View dragOverView) { 3559 boolean userFolderPending = willCreateUserFolder(info, targetLayout, targetCell, distance, 3560 false); 3561 3562 if (mDragMode == DRAG_MODE_NONE && userFolderPending && 3563 !mFolderCreationAlarm.alarmPending()) { 3564 mFolderCreationAlarm.setOnAlarmListener(new 3565 FolderCreationAlarmListener(targetLayout, targetCell[0], targetCell[1])); 3566 mFolderCreationAlarm.setAlarm(FOLDER_CREATION_TIMEOUT); 3567 return; 3568 } 3569 3570 boolean willAddToFolder = 3571 willAddToExistingUserFolder(info, targetLayout, targetCell, distance); 3572 3573 if (willAddToFolder && mDragMode == DRAG_MODE_NONE) { 3574 mDragOverFolderIcon = ((FolderIcon) dragOverView); 3575 mDragOverFolderIcon.onDragEnter(info); 3576 if (targetLayout != null) { 3577 targetLayout.clearDragOutlines(); 3578 } 3579 setDragMode(DRAG_MODE_ADD_TO_FOLDER); 3580 return; 3581 } 3582 3583 if (mDragMode == DRAG_MODE_ADD_TO_FOLDER && !willAddToFolder) { 3584 setDragMode(DRAG_MODE_NONE); 3585 } 3586 if (mDragMode == DRAG_MODE_CREATE_FOLDER && !userFolderPending) { 3587 setDragMode(DRAG_MODE_NONE); 3588 } 3589 3590 return; 3591 } 3592 3593 class FolderCreationAlarmListener implements OnAlarmListener { 3594 CellLayout layout; 3595 int cellX; 3596 int cellY; 3597 3598 public FolderCreationAlarmListener(CellLayout layout, int cellX, int cellY) { 3599 this.layout = layout; 3600 this.cellX = cellX; 3601 this.cellY = cellY; 3602 } 3603 3604 public void onAlarm(Alarm alarm) { 3605 if (mDragFolderRingAnimator != null) { 3606 // This shouldn't happen ever, but just in case, make sure we clean up the mess. 3607 mDragFolderRingAnimator.animateToNaturalState(); 3608 } 3609 mDragFolderRingAnimator = new FolderRingAnimator(mLauncher, null); 3610 mDragFolderRingAnimator.setCell(cellX, cellY); 3611 mDragFolderRingAnimator.setCellLayout(layout); 3612 mDragFolderRingAnimator.animateToAcceptState(); 3613 layout.showFolderAccept(mDragFolderRingAnimator); 3614 layout.clearDragOutlines(); 3615 setDragMode(DRAG_MODE_CREATE_FOLDER); 3616 } 3617 } 3618 3619 class ReorderAlarmListener implements OnAlarmListener { 3620 float[] dragViewCenter; 3621 int minSpanX, minSpanY, spanX, spanY; 3622 DragView dragView; 3623 View child; 3624 3625 public ReorderAlarmListener(float[] dragViewCenter, int minSpanX, int minSpanY, int spanX, 3626 int spanY, DragView dragView, View child) { 3627 this.dragViewCenter = dragViewCenter; 3628 this.minSpanX = minSpanX; 3629 this.minSpanY = minSpanY; 3630 this.spanX = spanX; 3631 this.spanY = spanY; 3632 this.child = child; 3633 this.dragView = dragView; 3634 } 3635 3636 public void onAlarm(Alarm alarm) { 3637 int[] resultSpan = new int[2]; 3638 mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], 3639 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, mDragTargetLayout, 3640 mTargetCell); 3641 mLastReorderX = mTargetCell[0]; 3642 mLastReorderY = mTargetCell[1]; 3643 3644 mTargetCell = mDragTargetLayout.performReorder((int) mDragViewVisualCenter[0], 3645 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, spanX, spanY, 3646 child, mTargetCell, resultSpan, CellLayout.MODE_DRAG_OVER); 3647 3648 if (mTargetCell[0] < 0 || mTargetCell[1] < 0) { 3649 mDragTargetLayout.revertTempState(); 3650 } else { 3651 setDragMode(DRAG_MODE_REORDER); 3652 } 3653 3654 boolean resize = resultSpan[0] != spanX || resultSpan[1] != spanY; 3655 mDragTargetLayout.visualizeDropLocation(child, mDragOutline, 3656 (int) mDragViewVisualCenter[0], (int) mDragViewVisualCenter[1], 3657 mTargetCell[0], mTargetCell[1], resultSpan[0], resultSpan[1], resize, 3658 dragView.getDragVisualizeOffset(), dragView.getDragRegion()); 3659 } 3660 } 3661 3662 @Override 3663 public void getHitRectRelativeToDragLayer(Rect outRect) { 3664 // We want the workspace to have the whole area of the display (it will find the correct 3665 // cell layout to drop to in the existing drag/drop logic. 3666 mLauncher.getDragLayer().getDescendantRectRelativeToSelf(this, outRect); 3667 } 3668 3669 /** 3670 * Add the item specified by dragInfo to the given layout. 3671 * @return true if successful 3672 */ 3673 public boolean addExternalItemToScreen(ItemInfo dragInfo, CellLayout layout) { 3674 if (layout.findCellForSpan(mTempEstimate, dragInfo.spanX, dragInfo.spanY)) { 3675 onDropExternal(dragInfo.dropPos, (ItemInfo) dragInfo, (CellLayout) layout, false); 3676 return true; 3677 } 3678 mLauncher.showOutOfSpaceMessage(mLauncher.isHotseatLayout(layout)); 3679 return false; 3680 } 3681 3682 private void onDropExternal(int[] touchXY, Object dragInfo, 3683 CellLayout cellLayout, boolean insertAtFirst) { 3684 onDropExternal(touchXY, dragInfo, cellLayout, insertAtFirst, null); 3685 } 3686 3687 /** 3688 * Drop an item that didn't originate on one of the workspace screens. 3689 * It may have come from Launcher (e.g. from all apps or customize), or it may have 3690 * come from another app altogether. 3691 * 3692 * NOTE: This can also be called when we are outside of a drag event, when we want 3693 * to add an item to one of the workspace screens. 3694 */ 3695 private void onDropExternal(final int[] touchXY, final Object dragInfo, 3696 final CellLayout cellLayout, boolean insertAtFirst, DragObject d) { 3697 final Runnable exitSpringLoadedRunnable = new Runnable() { 3698 @Override 3699 public void run() { 3700 removeExtraEmptyScreen(false, new Runnable() { 3701 @Override 3702 public void run() { 3703 mLauncher.exitSpringLoadedDragModeDelayed(true, 3704 Launcher.EXIT_SPRINGLOADED_MODE_SHORT_TIMEOUT, null); 3705 } 3706 }); 3707 } 3708 }; 3709 3710 ItemInfo info = (ItemInfo) dragInfo; 3711 int spanX = info.spanX; 3712 int spanY = info.spanY; 3713 if (mDragInfo != null) { 3714 spanX = mDragInfo.spanX; 3715 spanY = mDragInfo.spanY; 3716 } 3717 3718 final long container = mLauncher.isHotseatLayout(cellLayout) ? 3719 LauncherSettings.Favorites.CONTAINER_HOTSEAT : 3720 LauncherSettings.Favorites.CONTAINER_DESKTOP; 3721 final long screenId = getIdForScreen(cellLayout); 3722 if (!mLauncher.isHotseatLayout(cellLayout) 3723 && screenId != getScreenIdForPageIndex(mCurrentPage) 3724 && mState != State.SPRING_LOADED) { 3725 snapToScreenId(screenId, null); 3726 } 3727 3728 if (info instanceof PendingAddItemInfo) { 3729 final PendingAddItemInfo pendingInfo = (PendingAddItemInfo) dragInfo; 3730 3731 boolean findNearestVacantCell = true; 3732 if (pendingInfo.itemType == LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT) { 3733 mTargetCell = findNearestArea((int) touchXY[0], (int) touchXY[1], spanX, spanY, 3734 cellLayout, mTargetCell); 3735 float distance = cellLayout.getDistanceFromCell(mDragViewVisualCenter[0], 3736 mDragViewVisualCenter[1], mTargetCell); 3737 if (willCreateUserFolder((ItemInfo) d.dragInfo, cellLayout, mTargetCell, 3738 distance, true) || willAddToExistingUserFolder((ItemInfo) d.dragInfo, 3739 cellLayout, mTargetCell, distance)) { 3740 findNearestVacantCell = false; 3741 } 3742 } 3743 3744 final ItemInfo item = (ItemInfo) d.dragInfo; 3745 boolean updateWidgetSize = false; 3746 if (findNearestVacantCell) { 3747 int minSpanX = item.spanX; 3748 int minSpanY = item.spanY; 3749 if (item.minSpanX > 0 && item.minSpanY > 0) { 3750 minSpanX = item.minSpanX; 3751 minSpanY = item.minSpanY; 3752 } 3753 int[] resultSpan = new int[2]; 3754 mTargetCell = cellLayout.performReorder((int) mDragViewVisualCenter[0], 3755 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, info.spanX, info.spanY, 3756 null, mTargetCell, resultSpan, CellLayout.MODE_ON_DROP_EXTERNAL); 3757 3758 if (resultSpan[0] != item.spanX || resultSpan[1] != item.spanY) { 3759 updateWidgetSize = true; 3760 } 3761 item.spanX = resultSpan[0]; 3762 item.spanY = resultSpan[1]; 3763 } 3764 3765 Runnable onAnimationCompleteRunnable = new Runnable() { 3766 @Override 3767 public void run() { 3768 // When dragging and dropping from customization tray, we deal with creating 3769 // widgets/shortcuts/folders in a slightly different way 3770 switch (pendingInfo.itemType) { 3771 case LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET: 3772 int span[] = new int[2]; 3773 span[0] = item.spanX; 3774 span[1] = item.spanY; 3775 mLauncher.addAppWidgetFromDrop((PendingAddWidgetInfo) pendingInfo, 3776 container, screenId, mTargetCell, span, null); 3777 break; 3778 case LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT: 3779 mLauncher.processShortcutFromDrop(pendingInfo.componentName, 3780 container, screenId, mTargetCell, null); 3781 break; 3782 default: 3783 throw new IllegalStateException("Unknown item type: " + 3784 pendingInfo.itemType); 3785 } 3786 } 3787 }; 3788 View finalView = pendingInfo.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET 3789 ? ((PendingAddWidgetInfo) pendingInfo).boundWidget : null; 3790 3791 if (finalView instanceof AppWidgetHostView && updateWidgetSize) { 3792 AppWidgetHostView awhv = (AppWidgetHostView) finalView; 3793 AppWidgetResizeFrame.updateWidgetSizeRanges(awhv, mLauncher, item.spanX, 3794 item.spanY); 3795 } 3796 3797 int animationStyle = ANIMATE_INTO_POSITION_AND_DISAPPEAR; 3798 if (pendingInfo.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET && 3799 ((PendingAddWidgetInfo) pendingInfo).info.configure != null) { 3800 animationStyle = ANIMATE_INTO_POSITION_AND_REMAIN; 3801 } 3802 animateWidgetDrop(info, cellLayout, d.dragView, onAnimationCompleteRunnable, 3803 animationStyle, finalView, true); 3804 } else { 3805 // This is for other drag/drop cases, like dragging from All Apps 3806 View view = null; 3807 3808 switch (info.itemType) { 3809 case LauncherSettings.Favorites.ITEM_TYPE_APPLICATION: 3810 case LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT: 3811 if (info.container == NO_ID && info instanceof AppInfo) { 3812 // Came from all apps -- make a copy 3813 info = new ShortcutInfo((AppInfo) info); 3814 } 3815 view = mLauncher.createShortcut(R.layout.application, cellLayout, 3816 (ShortcutInfo) info); 3817 break; 3818 case LauncherSettings.Favorites.ITEM_TYPE_FOLDER: 3819 view = FolderIcon.fromXml(R.layout.folder_icon, mLauncher, cellLayout, 3820 (FolderInfo) info, mIconCache); 3821 break; 3822 default: 3823 throw new IllegalStateException("Unknown item type: " + info.itemType); 3824 } 3825 3826 // First we find the cell nearest to point at which the item is 3827 // dropped, without any consideration to whether there is an item there. 3828 if (touchXY != null) { 3829 mTargetCell = findNearestArea((int) touchXY[0], (int) touchXY[1], spanX, spanY, 3830 cellLayout, mTargetCell); 3831 float distance = cellLayout.getDistanceFromCell(mDragViewVisualCenter[0], 3832 mDragViewVisualCenter[1], mTargetCell); 3833 d.postAnimationRunnable = exitSpringLoadedRunnable; 3834 if (createUserFolderIfNecessary(view, container, cellLayout, mTargetCell, distance, 3835 true, d.dragView, d.postAnimationRunnable)) { 3836 return; 3837 } 3838 if (addToExistingFolderIfNecessary(view, cellLayout, mTargetCell, distance, d, 3839 true)) { 3840 return; 3841 } 3842 } 3843 3844 if (touchXY != null) { 3845 // when dragging and dropping, just find the closest free spot 3846 mTargetCell = cellLayout.performReorder((int) mDragViewVisualCenter[0], 3847 (int) mDragViewVisualCenter[1], 1, 1, 1, 1, 3848 null, mTargetCell, null, CellLayout.MODE_ON_DROP_EXTERNAL); 3849 } else { 3850 cellLayout.findCellForSpan(mTargetCell, 1, 1); 3851 } 3852 addInScreen(view, container, screenId, mTargetCell[0], mTargetCell[1], info.spanX, 3853 info.spanY, insertAtFirst); 3854 cellLayout.onDropChild(view); 3855 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) view.getLayoutParams(); 3856 cellLayout.getShortcutsAndWidgets().measureChild(view); 3857 3858 LauncherModel.addOrMoveItemInDatabase(mLauncher, info, container, screenId, 3859 lp.cellX, lp.cellY); 3860 3861 if (d.dragView != null) { 3862 // We wrap the animation call in the temporary set and reset of the current 3863 // cellLayout to its final transform -- this means we animate the drag view to 3864 // the correct final location. 3865 setFinalTransitionTransform(cellLayout); 3866 mLauncher.getDragLayer().animateViewIntoPosition(d.dragView, view, 3867 exitSpringLoadedRunnable, this); 3868 resetTransitionTransform(cellLayout); 3869 } 3870 } 3871 } 3872 3873 public Bitmap createWidgetBitmap(ItemInfo widgetInfo, View layout) { 3874 int[] unScaledSize = mLauncher.getWorkspace().estimateItemSize(widgetInfo.spanX, 3875 widgetInfo.spanY, widgetInfo, false); 3876 int visibility = layout.getVisibility(); 3877 layout.setVisibility(VISIBLE); 3878 3879 int width = MeasureSpec.makeMeasureSpec(unScaledSize[0], MeasureSpec.EXACTLY); 3880 int height = MeasureSpec.makeMeasureSpec(unScaledSize[1], MeasureSpec.EXACTLY); 3881 Bitmap b = Bitmap.createBitmap(unScaledSize[0], unScaledSize[1], 3882 Bitmap.Config.ARGB_8888); 3883 Canvas c = new Canvas(b); 3884 3885 layout.measure(width, height); 3886 layout.layout(0, 0, unScaledSize[0], unScaledSize[1]); 3887 layout.draw(c); 3888 c.setBitmap(null); 3889 layout.setVisibility(visibility); 3890 return b; 3891 } 3892 3893 private void getFinalPositionForDropAnimation(int[] loc, float[] scaleXY, 3894 DragView dragView, CellLayout layout, ItemInfo info, int[] targetCell, 3895 boolean external, boolean scale) { 3896 // Now we animate the dragView, (ie. the widget or shortcut preview) into its final 3897 // location and size on the home screen. 3898 int spanX = info.spanX; 3899 int spanY = info.spanY; 3900 3901 Rect r = estimateItemPosition(layout, info, targetCell[0], targetCell[1], spanX, spanY); 3902 loc[0] = r.left; 3903 loc[1] = r.top; 3904 3905 setFinalTransitionTransform(layout); 3906 float cellLayoutScale = 3907 mLauncher.getDragLayer().getDescendantCoordRelativeToSelf(layout, loc, true); 3908 resetTransitionTransform(layout); 3909 3910 float dragViewScaleX; 3911 float dragViewScaleY; 3912 if (scale) { 3913 dragViewScaleX = (1.0f * r.width()) / dragView.getMeasuredWidth(); 3914 dragViewScaleY = (1.0f * r.height()) / dragView.getMeasuredHeight(); 3915 } else { 3916 dragViewScaleX = 1f; 3917 dragViewScaleY = 1f; 3918 } 3919 3920 // The animation will scale the dragView about its center, so we need to center about 3921 // the final location. 3922 loc[0] -= (dragView.getMeasuredWidth() - cellLayoutScale * r.width()) / 2; 3923 loc[1] -= (dragView.getMeasuredHeight() - cellLayoutScale * r.height()) / 2; 3924 3925 scaleXY[0] = dragViewScaleX * cellLayoutScale; 3926 scaleXY[1] = dragViewScaleY * cellLayoutScale; 3927 } 3928 3929 public void animateWidgetDrop(ItemInfo info, CellLayout cellLayout, DragView dragView, 3930 final Runnable onCompleteRunnable, int animationType, final View finalView, 3931 boolean external) { 3932 Rect from = new Rect(); 3933 mLauncher.getDragLayer().getViewRectRelativeToSelf(dragView, from); 3934 3935 int[] finalPos = new int[2]; 3936 float scaleXY[] = new float[2]; 3937 boolean scalePreview = !(info instanceof PendingAddShortcutInfo); 3938 getFinalPositionForDropAnimation(finalPos, scaleXY, dragView, cellLayout, info, mTargetCell, 3939 external, scalePreview); 3940 3941 Resources res = mLauncher.getResources(); 3942 final int duration = res.getInteger(R.integer.config_dropAnimMaxDuration) - 200; 3943 3944 // In the case where we've prebound the widget, we remove it from the DragLayer 3945 if (finalView instanceof AppWidgetHostView && external) { 3946 Log.d(TAG, "6557954 Animate widget drop, final view is appWidgetHostView"); 3947 mLauncher.getDragLayer().removeView(finalView); 3948 } 3949 if ((animationType == ANIMATE_INTO_POSITION_AND_RESIZE || external) && finalView != null) { 3950 Bitmap crossFadeBitmap = createWidgetBitmap(info, finalView); 3951 dragView.setCrossFadeBitmap(crossFadeBitmap); 3952 dragView.crossFade((int) (duration * 0.8f)); 3953 } else if (info.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET && external) { 3954 scaleXY[0] = scaleXY[1] = Math.min(scaleXY[0], scaleXY[1]); 3955 } 3956 3957 DragLayer dragLayer = mLauncher.getDragLayer(); 3958 if (animationType == CANCEL_TWO_STAGE_WIDGET_DROP_ANIMATION) { 3959 mLauncher.getDragLayer().animateViewIntoPosition(dragView, finalPos, 0f, 0.1f, 0.1f, 3960 DragLayer.ANIMATION_END_DISAPPEAR, onCompleteRunnable, duration); 3961 } else { 3962 int endStyle; 3963 if (animationType == ANIMATE_INTO_POSITION_AND_REMAIN) { 3964 endStyle = DragLayer.ANIMATION_END_REMAIN_VISIBLE; 3965 } else { 3966 endStyle = DragLayer.ANIMATION_END_DISAPPEAR;; 3967 } 3968 3969 Runnable onComplete = new Runnable() { 3970 @Override 3971 public void run() { 3972 if (finalView != null) { 3973 finalView.setVisibility(VISIBLE); 3974 } 3975 if (onCompleteRunnable != null) { 3976 onCompleteRunnable.run(); 3977 } 3978 } 3979 }; 3980 dragLayer.animateViewIntoPosition(dragView, from.left, from.top, finalPos[0], 3981 finalPos[1], 1, 1, 1, scaleXY[0], scaleXY[1], onComplete, endStyle, 3982 duration, this); 3983 } 3984 } 3985 3986 public void setFinalTransitionTransform(CellLayout layout) { 3987 if (isSwitchingState()) { 3988 mCurrentScale = getScaleX(); 3989 setScaleX(mNewScale); 3990 setScaleY(mNewScale); 3991 } 3992 } 3993 public void resetTransitionTransform(CellLayout layout) { 3994 if (isSwitchingState()) { 3995 setScaleX(mCurrentScale); 3996 setScaleY(mCurrentScale); 3997 } 3998 } 3999 4000 /** 4001 * Return the current {@link CellLayout}, correctly picking the destination 4002 * screen while a scroll is in progress. 4003 */ 4004 public CellLayout getCurrentDropLayout() { 4005 return (CellLayout) getChildAt(getNextPage()); 4006 } 4007 4008 /** 4009 * Return the current CellInfo describing our current drag; this method exists 4010 * so that Launcher can sync this object with the correct info when the activity is created/ 4011 * destroyed 4012 * 4013 */ 4014 public CellLayout.CellInfo getDragInfo() { 4015 return mDragInfo; 4016 } 4017 4018 public int getCurrentPageOffsetFromCustomContent() { 4019 return getNextPage() - numCustomPages(); 4020 } 4021 4022 /** 4023 * Calculate the nearest cell where the given object would be dropped. 4024 * 4025 * pixelX and pixelY should be in the coordinate system of layout 4026 */ 4027 private int[] findNearestArea(int pixelX, int pixelY, 4028 int spanX, int spanY, CellLayout layout, int[] recycle) { 4029 return layout.findNearestArea( 4030 pixelX, pixelY, spanX, spanY, recycle); 4031 } 4032 4033 void setup(DragController dragController) { 4034 mSpringLoadedDragController = new SpringLoadedDragController(mLauncher); 4035 mDragController = dragController; 4036 4037 // hardware layers on children are enabled on startup, but should be disabled until 4038 // needed 4039 updateChildrenLayersEnabled(false); 4040 } 4041 4042 /** 4043 * Called at the end of a drag which originated on the workspace. 4044 */ 4045 public void onDropCompleted(final View target, final DragObject d, 4046 final boolean isFlingToDelete, final boolean success) { 4047 if (mDeferDropAfterUninstall) { 4048 mDeferredAction = new Runnable() { 4049 public void run() { 4050 onDropCompleted(target, d, isFlingToDelete, success); 4051 mDeferredAction = null; 4052 } 4053 }; 4054 return; 4055 } 4056 4057 boolean beingCalledAfterUninstall = mDeferredAction != null; 4058 4059 if (success && !(beingCalledAfterUninstall && !mUninstallSuccessful)) { 4060 if (target != this && mDragInfo != null) { 4061 CellLayout parentCell = getParentCellLayoutForView(mDragInfo.cell); 4062 if (parentCell != null) { 4063 parentCell.removeView(mDragInfo.cell); 4064 } 4065 if (mDragInfo.cell instanceof DropTarget) { 4066 mDragController.removeDropTarget((DropTarget) mDragInfo.cell); 4067 } 4068 // If we move the item to anything not on the Workspace, check if any empty 4069 // screens need to be removed. If we dropped back on the workspace, this will 4070 // be done post drop animation. 4071 removeExtraEmptyScreen(true, null, 0, true); 4072 } 4073 } else if (mDragInfo != null) { 4074 CellLayout cellLayout; 4075 if (mLauncher.isHotseatLayout(target)) { 4076 cellLayout = mLauncher.getHotseat().getLayout(); 4077 } else { 4078 cellLayout = getScreenWithId(mDragInfo.screenId); 4079 } 4080 if (cellLayout == null && LauncherAppState.isDogfoodBuild()) { 4081 throw new RuntimeException("Invalid state: cellLayout == null in " 4082 + "Workspace#onDropCompleted. Please file a bug. "); 4083 } 4084 if (cellLayout != null) { 4085 cellLayout.onDropChild(mDragInfo.cell); 4086 } 4087 } 4088 if ((d.cancelled || (beingCalledAfterUninstall && !mUninstallSuccessful)) 4089 && mDragInfo.cell != null) { 4090 mDragInfo.cell.setVisibility(VISIBLE); 4091 } 4092 mDragOutline = null; 4093 mDragInfo = null; 4094 } 4095 4096 public void deferCompleteDropAfterUninstallActivity() { 4097 mDeferDropAfterUninstall = true; 4098 } 4099 4100 /// maybe move this into a smaller part 4101 public void onUninstallActivityReturned(boolean success) { 4102 mDeferDropAfterUninstall = false; 4103 mUninstallSuccessful = success; 4104 if (mDeferredAction != null) { 4105 mDeferredAction.run(); 4106 } 4107 } 4108 4109 void updateItemLocationsInDatabase(CellLayout cl) { 4110 int count = cl.getShortcutsAndWidgets().getChildCount(); 4111 4112 long screenId = getIdForScreen(cl); 4113 int container = Favorites.CONTAINER_DESKTOP; 4114 4115 if (mLauncher.isHotseatLayout(cl)) { 4116 screenId = -1; 4117 container = Favorites.CONTAINER_HOTSEAT; 4118 } 4119 4120 for (int i = 0; i < count; i++) { 4121 View v = cl.getShortcutsAndWidgets().getChildAt(i); 4122 ItemInfo info = (ItemInfo) v.getTag(); 4123 // Null check required as the AllApps button doesn't have an item info 4124 if (info != null && info.requiresDbUpdate) { 4125 info.requiresDbUpdate = false; 4126 LauncherModel.modifyItemInDatabase(mLauncher, info, container, screenId, info.cellX, 4127 info.cellY, info.spanX, info.spanY); 4128 } 4129 } 4130 } 4131 4132 ArrayList<ComponentName> getUniqueComponents(boolean stripDuplicates, ArrayList<ComponentName> duplicates) { 4133 ArrayList<ComponentName> uniqueIntents = new ArrayList<ComponentName>(); 4134 getUniqueIntents((CellLayout) mLauncher.getHotseat().getLayout(), uniqueIntents, duplicates, false); 4135 int count = getChildCount(); 4136 for (int i = 0; i < count; i++) { 4137 CellLayout cl = (CellLayout) getChildAt(i); 4138 getUniqueIntents(cl, uniqueIntents, duplicates, false); 4139 } 4140 return uniqueIntents; 4141 } 4142 4143 void getUniqueIntents(CellLayout cl, ArrayList<ComponentName> uniqueIntents, 4144 ArrayList<ComponentName> duplicates, boolean stripDuplicates) { 4145 int count = cl.getShortcutsAndWidgets().getChildCount(); 4146 4147 ArrayList<View> children = new ArrayList<View>(); 4148 for (int i = 0; i < count; i++) { 4149 View v = cl.getShortcutsAndWidgets().getChildAt(i); 4150 children.add(v); 4151 } 4152 4153 for (int i = 0; i < count; i++) { 4154 View v = children.get(i); 4155 ItemInfo info = (ItemInfo) v.getTag(); 4156 // Null check required as the AllApps button doesn't have an item info 4157 if (info instanceof ShortcutInfo) { 4158 ShortcutInfo si = (ShortcutInfo) info; 4159 ComponentName cn = si.intent.getComponent(); 4160 4161 Uri dataUri = si.intent.getData(); 4162 // If dataUri is not null / empty or if this component isn't one that would 4163 // have previously showed up in the AllApps list, then this is a widget-type 4164 // shortcut, so ignore it. 4165 if (dataUri != null && !dataUri.equals(Uri.EMPTY)) { 4166 continue; 4167 } 4168 4169 if (!uniqueIntents.contains(cn)) { 4170 uniqueIntents.add(cn); 4171 } else { 4172 if (stripDuplicates) { 4173 cl.removeViewInLayout(v); 4174 LauncherModel.deleteItemFromDatabase(mLauncher, si); 4175 } 4176 if (duplicates != null) { 4177 duplicates.add(cn); 4178 } 4179 } 4180 } 4181 if (v instanceof FolderIcon) { 4182 FolderIcon fi = (FolderIcon) v; 4183 ArrayList<View> items = fi.getFolder().getItemsInReadingOrder(); 4184 for (int j = 0; j < items.size(); j++) { 4185 if (items.get(j).getTag() instanceof ShortcutInfo) { 4186 ShortcutInfo si = (ShortcutInfo) items.get(j).getTag(); 4187 ComponentName cn = si.intent.getComponent(); 4188 4189 Uri dataUri = si.intent.getData(); 4190 // If dataUri is not null / empty or if this component isn't one that would 4191 // have previously showed up in the AllApps list, then this is a widget-type 4192 // shortcut, so ignore it. 4193 if (dataUri != null && !dataUri.equals(Uri.EMPTY)) { 4194 continue; 4195 } 4196 4197 if (!uniqueIntents.contains(cn)) { 4198 uniqueIntents.add(cn); 4199 } else { 4200 if (stripDuplicates) { 4201 fi.getFolderInfo().remove(si); 4202 LauncherModel.deleteItemFromDatabase(mLauncher, si); 4203 } 4204 if (duplicates != null) { 4205 duplicates.add(cn); 4206 } 4207 } 4208 } 4209 } 4210 } 4211 } 4212 } 4213 4214 void saveWorkspaceToDb() { 4215 saveWorkspaceScreenToDb((CellLayout) mLauncher.getHotseat().getLayout()); 4216 int count = getChildCount(); 4217 for (int i = 0; i < count; i++) { 4218 CellLayout cl = (CellLayout) getChildAt(i); 4219 saveWorkspaceScreenToDb(cl); 4220 } 4221 } 4222 4223 void saveWorkspaceScreenToDb(CellLayout cl) { 4224 int count = cl.getShortcutsAndWidgets().getChildCount(); 4225 4226 long screenId = getIdForScreen(cl); 4227 int container = Favorites.CONTAINER_DESKTOP; 4228 4229 Hotseat hotseat = mLauncher.getHotseat(); 4230 if (mLauncher.isHotseatLayout(cl)) { 4231 screenId = -1; 4232 container = Favorites.CONTAINER_HOTSEAT; 4233 } 4234 4235 for (int i = 0; i < count; i++) { 4236 View v = cl.getShortcutsAndWidgets().getChildAt(i); 4237 ItemInfo info = (ItemInfo) v.getTag(); 4238 // Null check required as the AllApps button doesn't have an item info 4239 if (info != null) { 4240 int cellX = info.cellX; 4241 int cellY = info.cellY; 4242 if (container == Favorites.CONTAINER_HOTSEAT) { 4243 cellX = hotseat.getCellXFromOrder((int) info.screenId); 4244 cellY = hotseat.getCellYFromOrder((int) info.screenId); 4245 } 4246 LauncherModel.addItemToDatabase(mLauncher, info, container, screenId, cellX, 4247 cellY, false); 4248 } 4249 if (v instanceof FolderIcon) { 4250 FolderIcon fi = (FolderIcon) v; 4251 fi.getFolder().addItemLocationsInDatabase(); 4252 } 4253 } 4254 } 4255 4256 @Override 4257 public float getIntrinsicIconScaleFactor() { 4258 return 1f; 4259 } 4260 4261 @Override 4262 public boolean supportsFlingToDelete() { 4263 return true; 4264 } 4265 4266 @Override 4267 public boolean supportsAppInfoDropTarget() { 4268 return false; 4269 } 4270 4271 @Override 4272 public boolean supportsDeleteDropTarget() { 4273 return true; 4274 } 4275 4276 @Override 4277 public void onFlingToDelete(DragObject d, int x, int y, PointF vec) { 4278 // Do nothing 4279 } 4280 4281 @Override 4282 public void onFlingToDeleteCompleted() { 4283 // Do nothing 4284 } 4285 4286 public boolean isDropEnabled() { 4287 return true; 4288 } 4289 4290 @Override 4291 protected void onRestoreInstanceState(Parcelable state) { 4292 super.onRestoreInstanceState(state); 4293 Launcher.setScreen(mCurrentPage); 4294 } 4295 4296 @Override 4297 protected void dispatchRestoreInstanceState(SparseArray<Parcelable> container) { 4298 // We don't dispatch restoreInstanceState to our children using this code path. 4299 // Some pages will be restored immediately as their items are bound immediately, and 4300 // others we will need to wait until after their items are bound. 4301 mSavedStates = container; 4302 } 4303 4304 public void restoreInstanceStateForChild(int child) { 4305 if (mSavedStates != null) { 4306 mRestoredPages.add(child); 4307 CellLayout cl = (CellLayout) getChildAt(child); 4308 if (cl != null) { 4309 cl.restoreInstanceState(mSavedStates); 4310 } 4311 } 4312 } 4313 4314 public void restoreInstanceStateForRemainingPages() { 4315 int count = getChildCount(); 4316 for (int i = 0; i < count; i++) { 4317 if (!mRestoredPages.contains(i)) { 4318 restoreInstanceStateForChild(i); 4319 } 4320 } 4321 mRestoredPages.clear(); 4322 mSavedStates = null; 4323 } 4324 4325 @Override 4326 public void scrollLeft() { 4327 if (!isSmall() && !mIsSwitchingState) { 4328 super.scrollLeft(); 4329 } 4330 Folder openFolder = getOpenFolder(); 4331 if (openFolder != null) { 4332 openFolder.completeDragExit(); 4333 } 4334 } 4335 4336 @Override 4337 public void scrollRight() { 4338 if (!isSmall() && !mIsSwitchingState) { 4339 super.scrollRight(); 4340 } 4341 Folder openFolder = getOpenFolder(); 4342 if (openFolder != null) { 4343 openFolder.completeDragExit(); 4344 } 4345 } 4346 4347 @Override 4348 public boolean onEnterScrollArea(int x, int y, int direction) { 4349 // Ignore the scroll area if we are dragging over the hot seat 4350 boolean isPortrait = !LauncherAppState.isScreenLandscape(getContext()); 4351 if (mLauncher.getHotseat() != null && isPortrait) { 4352 Rect r = new Rect(); 4353 mLauncher.getHotseat().getHitRect(r); 4354 if (r.contains(x, y)) { 4355 return false; 4356 } 4357 } 4358 4359 boolean result = false; 4360 if (!isSmall() && !mIsSwitchingState && getOpenFolder() == null) { 4361 mInScrollArea = true; 4362 4363 final int page = getNextPage() + 4364 (direction == DragController.SCROLL_LEFT ? -1 : 1); 4365 // We always want to exit the current layout to ensure parity of enter / exit 4366 setCurrentDropLayout(null); 4367 4368 if (0 <= page && page < getChildCount()) { 4369 // Ensure that we are not dragging over to the custom content screen 4370 if (getScreenIdForPageIndex(page) == CUSTOM_CONTENT_SCREEN_ID) { 4371 return false; 4372 } 4373 4374 CellLayout layout = (CellLayout) getChildAt(page); 4375 setCurrentDragOverlappingLayout(layout); 4376 4377 // Workspace is responsible for drawing the edge glow on adjacent pages, 4378 // so we need to redraw the workspace when this may have changed. 4379 invalidate(); 4380 result = true; 4381 } 4382 } 4383 return result; 4384 } 4385 4386 @Override 4387 public boolean onExitScrollArea() { 4388 boolean result = false; 4389 if (mInScrollArea) { 4390 invalidate(); 4391 CellLayout layout = getCurrentDropLayout(); 4392 setCurrentDropLayout(layout); 4393 setCurrentDragOverlappingLayout(layout); 4394 4395 result = true; 4396 mInScrollArea = false; 4397 } 4398 return result; 4399 } 4400 4401 private void onResetScrollArea() { 4402 setCurrentDragOverlappingLayout(null); 4403 mInScrollArea = false; 4404 } 4405 4406 /** 4407 * Returns a specific CellLayout 4408 */ 4409 CellLayout getParentCellLayoutForView(View v) { 4410 ArrayList<CellLayout> layouts = getWorkspaceAndHotseatCellLayouts(); 4411 for (CellLayout layout : layouts) { 4412 if (layout.getShortcutsAndWidgets().indexOfChild(v) > -1) { 4413 return layout; 4414 } 4415 } 4416 return null; 4417 } 4418 4419 /** 4420 * Returns a list of all the CellLayouts in the workspace. 4421 */ 4422 ArrayList<CellLayout> getWorkspaceAndHotseatCellLayouts() { 4423 ArrayList<CellLayout> layouts = new ArrayList<CellLayout>(); 4424 int screenCount = getChildCount(); 4425 for (int screen = 0; screen < screenCount; screen++) { 4426 layouts.add(((CellLayout) getChildAt(screen))); 4427 } 4428 if (mLauncher.getHotseat() != null) { 4429 layouts.add(mLauncher.getHotseat().getLayout()); 4430 } 4431 return layouts; 4432 } 4433 4434 /** 4435 * We should only use this to search for specific children. Do not use this method to modify 4436 * ShortcutsAndWidgetsContainer directly. Includes ShortcutAndWidgetContainers from 4437 * the hotseat and workspace pages 4438 */ 4439 ArrayList<ShortcutAndWidgetContainer> getAllShortcutAndWidgetContainers() { 4440 ArrayList<ShortcutAndWidgetContainer> childrenLayouts = 4441 new ArrayList<ShortcutAndWidgetContainer>(); 4442 int screenCount = getChildCount(); 4443 for (int screen = 0; screen < screenCount; screen++) { 4444 childrenLayouts.add(((CellLayout) getChildAt(screen)).getShortcutsAndWidgets()); 4445 } 4446 if (mLauncher.getHotseat() != null) { 4447 childrenLayouts.add(mLauncher.getHotseat().getLayout().getShortcutsAndWidgets()); 4448 } 4449 return childrenLayouts; 4450 } 4451 4452 public Folder getFolderForTag(Object tag) { 4453 ArrayList<ShortcutAndWidgetContainer> childrenLayouts = 4454 getAllShortcutAndWidgetContainers(); 4455 for (ShortcutAndWidgetContainer layout: childrenLayouts) { 4456 int count = layout.getChildCount(); 4457 for (int i = 0; i < count; i++) { 4458 View child = layout.getChildAt(i); 4459 if (child instanceof Folder) { 4460 Folder f = (Folder) child; 4461 if (f.getInfo() == tag && f.getInfo().opened) { 4462 return f; 4463 } 4464 } 4465 } 4466 } 4467 return null; 4468 } 4469 4470 public View getViewForTag(Object tag) { 4471 ArrayList<ShortcutAndWidgetContainer> childrenLayouts = 4472 getAllShortcutAndWidgetContainers(); 4473 for (ShortcutAndWidgetContainer layout: childrenLayouts) { 4474 int count = layout.getChildCount(); 4475 for (int i = 0; i < count; i++) { 4476 View child = layout.getChildAt(i); 4477 if (child.getTag() == tag) { 4478 return child; 4479 } 4480 } 4481 } 4482 return null; 4483 } 4484 4485 void clearDropTargets() { 4486 ArrayList<ShortcutAndWidgetContainer> childrenLayouts = 4487 getAllShortcutAndWidgetContainers(); 4488 for (ShortcutAndWidgetContainer layout: childrenLayouts) { 4489 int childCount = layout.getChildCount(); 4490 for (int j = 0; j < childCount; j++) { 4491 View v = layout.getChildAt(j); 4492 if (v instanceof DropTarget) { 4493 mDragController.removeDropTarget((DropTarget) v); 4494 } 4495 } 4496 } 4497 } 4498 4499 // Removes ALL items that match a given package name, this is usually called when a package 4500 // has been removed and we want to remove all components (widgets, shortcuts, apps) that 4501 // belong to that package. 4502 void removeItemsByPackageName(final ArrayList<String> packages) { 4503 final HashSet<String> packageNames = new HashSet<String>(); 4504 packageNames.addAll(packages); 4505 4506 // Filter out all the ItemInfos that this is going to affect 4507 final HashSet<ItemInfo> infos = new HashSet<ItemInfo>(); 4508 final HashSet<ComponentName> cns = new HashSet<ComponentName>(); 4509 ArrayList<CellLayout> cellLayouts = getWorkspaceAndHotseatCellLayouts(); 4510 for (CellLayout layoutParent : cellLayouts) { 4511 ViewGroup layout = layoutParent.getShortcutsAndWidgets(); 4512 int childCount = layout.getChildCount(); 4513 for (int i = 0; i < childCount; ++i) { 4514 View view = layout.getChildAt(i); 4515 infos.add((ItemInfo) view.getTag()); 4516 } 4517 } 4518 LauncherModel.ItemInfoFilter filter = new LauncherModel.ItemInfoFilter() { 4519 @Override 4520 public boolean filterItem(ItemInfo parent, ItemInfo info, 4521 ComponentName cn) { 4522 if (packageNames.contains(cn.getPackageName())) { 4523 cns.add(cn); 4524 return true; 4525 } 4526 return false; 4527 } 4528 }; 4529 LauncherModel.filterItemInfos(infos, filter); 4530 4531 // Remove the affected components 4532 removeItemsByComponentName(cns); 4533 } 4534 4535 // Removes items that match the application info specified, when applications are removed 4536 // as a part of an update, this is called to ensure that other widgets and application 4537 // shortcuts are not removed. 4538 void removeItemsByApplicationInfo(final ArrayList<AppInfo> appInfos) { 4539 // Just create a hash table of all the specific components that this will affect 4540 HashSet<ComponentName> cns = new HashSet<ComponentName>(); 4541 for (AppInfo info : appInfos) { 4542 cns.add(info.componentName); 4543 } 4544 4545 // Remove all the things 4546 removeItemsByComponentName(cns); 4547 } 4548 4549 void removeItemsByComponentName(final HashSet<ComponentName> componentNames) { 4550 ArrayList<CellLayout> cellLayouts = getWorkspaceAndHotseatCellLayouts(); 4551 for (final CellLayout layoutParent: cellLayouts) { 4552 final ViewGroup layout = layoutParent.getShortcutsAndWidgets(); 4553 4554 final HashMap<ItemInfo, View> children = new HashMap<ItemInfo, View>(); 4555 for (int j = 0; j < layout.getChildCount(); j++) { 4556 final View view = layout.getChildAt(j); 4557 children.put((ItemInfo) view.getTag(), view); 4558 } 4559 4560 final ArrayList<View> childrenToRemove = new ArrayList<View>(); 4561 final HashMap<FolderInfo, ArrayList<ShortcutInfo>> folderAppsToRemove = 4562 new HashMap<FolderInfo, ArrayList<ShortcutInfo>>(); 4563 LauncherModel.ItemInfoFilter filter = new LauncherModel.ItemInfoFilter() { 4564 @Override 4565 public boolean filterItem(ItemInfo parent, ItemInfo info, 4566 ComponentName cn) { 4567 if (parent instanceof FolderInfo) { 4568 if (componentNames.contains(cn)) { 4569 FolderInfo folder = (FolderInfo) parent; 4570 ArrayList<ShortcutInfo> appsToRemove; 4571 if (folderAppsToRemove.containsKey(folder)) { 4572 appsToRemove = folderAppsToRemove.get(folder); 4573 } else { 4574 appsToRemove = new ArrayList<ShortcutInfo>(); 4575 folderAppsToRemove.put(folder, appsToRemove); 4576 } 4577 appsToRemove.add((ShortcutInfo) info); 4578 return true; 4579 } 4580 } else { 4581 if (componentNames.contains(cn)) { 4582 childrenToRemove.add(children.get(info)); 4583 return true; 4584 } 4585 } 4586 return false; 4587 } 4588 }; 4589 LauncherModel.filterItemInfos(children.keySet(), filter); 4590 4591 // Remove all the apps from their folders 4592 for (FolderInfo folder : folderAppsToRemove.keySet()) { 4593 ArrayList<ShortcutInfo> appsToRemove = folderAppsToRemove.get(folder); 4594 for (ShortcutInfo info : appsToRemove) { 4595 folder.remove(info); 4596 } 4597 } 4598 4599 // Remove all the other children 4600 for (View child : childrenToRemove) { 4601 // Note: We can not remove the view directly from CellLayoutChildren as this 4602 // does not re-mark the spaces as unoccupied. 4603 layoutParent.removeViewInLayout(child); 4604 if (child instanceof DropTarget) { 4605 mDragController.removeDropTarget((DropTarget) child); 4606 } 4607 } 4608 4609 if (childrenToRemove.size() > 0) { 4610 layout.requestLayout(); 4611 layout.invalidate(); 4612 } 4613 } 4614 4615 // Strip all the empty screens 4616 stripEmptyScreens(); 4617 } 4618 4619 private void updateShortcut(HashMap<ComponentName, AppInfo> appsMap, ItemInfo info, 4620 View child) { 4621 ComponentName cn = info.getIntent().getComponent(); 4622 if (info.getRestoredIntent() != null) { 4623 cn = info.getRestoredIntent().getComponent(); 4624 } 4625 if (cn != null) { 4626 AppInfo appInfo = appsMap.get(cn); 4627 if ((appInfo != null) && LauncherModel.isShortcutInfoUpdateable(info)) { 4628 ShortcutInfo shortcutInfo = (ShortcutInfo) info; 4629 BubbleTextView shortcut = (BubbleTextView) child; 4630 shortcutInfo.restore(); 4631 shortcutInfo.updateIcon(mIconCache); 4632 shortcutInfo.title = appInfo.title.toString(); 4633 shortcut.applyFromShortcutInfo(shortcutInfo, mIconCache); 4634 } 4635 } 4636 } 4637 4638 void updateShortcuts(ArrayList<AppInfo> apps) { 4639 // Create a map of the apps to test against 4640 final HashMap<ComponentName, AppInfo> appsMap = new HashMap<ComponentName, AppInfo>(); 4641 for (AppInfo ai : apps) { 4642 appsMap.put(ai.componentName, ai); 4643 } 4644 4645 ArrayList<ShortcutAndWidgetContainer> childrenLayouts = getAllShortcutAndWidgetContainers(); 4646 for (ShortcutAndWidgetContainer layout: childrenLayouts) { 4647 // Update all the children shortcuts 4648 final HashMap<ItemInfo, View> children = new HashMap<ItemInfo, View>(); 4649 for (int j = 0; j < layout.getChildCount(); j++) { 4650 View v = layout.getChildAt(j); 4651 ItemInfo info = (ItemInfo) v.getTag(); 4652 if (info instanceof FolderInfo && v instanceof FolderIcon) { 4653 FolderIcon folder = (FolderIcon) v; 4654 ArrayList<View> folderChildren = folder.getFolder().getItemsInReadingOrder(); 4655 for (View fv : folderChildren) { 4656 info = (ItemInfo) fv.getTag(); 4657 updateShortcut(appsMap, info, fv); 4658 } 4659 folder.invalidate(); 4660 } else if (info instanceof ShortcutInfo) { 4661 updateShortcut(appsMap, info, v); 4662 } 4663 } 4664 } 4665 } 4666 4667 private void moveToScreen(int page, boolean animate) { 4668 if (!isSmall()) { 4669 if (animate) { 4670 snapToPage(page); 4671 } else { 4672 setCurrentPage(page); 4673 } 4674 } 4675 View child = getChildAt(page); 4676 if (child != null) { 4677 child.requestFocus(); 4678 } 4679 } 4680 4681 void moveToDefaultScreen(boolean animate) { 4682 moveToScreen(mDefaultPage, animate); 4683 } 4684 4685 void moveToCustomContentScreen(boolean animate) { 4686 if (hasCustomContent()) { 4687 int ccIndex = getPageIndexForScreenId(CUSTOM_CONTENT_SCREEN_ID); 4688 if (animate) { 4689 snapToPage(ccIndex); 4690 } else { 4691 setCurrentPage(ccIndex); 4692 } 4693 View child = getChildAt(ccIndex); 4694 if (child != null) { 4695 child.requestFocus(); 4696 } 4697 } 4698 exitWidgetResizeMode(); 4699 } 4700 4701 @Override 4702 protected PageIndicator.PageMarkerResources getPageIndicatorMarker(int pageIndex) { 4703 long screenId = getScreenIdForPageIndex(pageIndex); 4704 if (screenId == EXTRA_EMPTY_SCREEN_ID) { 4705 int count = mScreenOrder.size() - numCustomPages(); 4706 if (count > 1) { 4707 return new PageIndicator.PageMarkerResources(R.drawable.ic_pageindicator_current, 4708 R.drawable.ic_pageindicator_add); 4709 } 4710 } 4711 4712 return super.getPageIndicatorMarker(pageIndex); 4713 } 4714 4715 @Override 4716 public void syncPages() { 4717 } 4718 4719 @Override 4720 public void syncPageItems(int page, boolean immediate) { 4721 } 4722 4723 protected String getPageIndicatorDescription() { 4724 String settings = getResources().getString(R.string.settings_button_text); 4725 return getCurrentPageDescription() + ", " + settings; 4726 } 4727 4728 protected String getCurrentPageDescription() { 4729 int page = (mNextPage != INVALID_PAGE) ? mNextPage : mCurrentPage; 4730 int delta = numCustomPages(); 4731 if (hasCustomContent() && getNextPage() == 0) { 4732 return mCustomContentDescription; 4733 } 4734 return String.format(getContext().getString(R.string.workspace_scroll_format), 4735 page + 1 - delta, getChildCount() - delta); 4736 } 4737 4738 public void getLocationInDragLayer(int[] loc) { 4739 mLauncher.getDragLayer().getLocationInDragLayer(this, loc); 4740 } 4741} 4742