Workspace.java revision 74c5491d1b84e072d29065748b41f0bb67459f59
1/* 2 * Copyright (C) 2008 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17package com.android.launcher3; 18 19import android.animation.Animator; 20import android.animation.AnimatorListenerAdapter; 21import android.animation.AnimatorSet; 22import android.animation.LayoutTransition; 23import android.animation.ObjectAnimator; 24import android.animation.TimeInterpolator; 25import android.animation.ValueAnimator; 26import android.animation.ValueAnimator.AnimatorUpdateListener; 27import android.app.WallpaperManager; 28import android.appwidget.AppWidgetHostView; 29import android.appwidget.AppWidgetProviderInfo; 30import android.content.ComponentName; 31import android.content.Context; 32import android.content.Intent; 33import android.content.SharedPreferences; 34import android.content.res.Resources; 35import android.content.res.TypedArray; 36import android.graphics.Bitmap; 37import android.graphics.Canvas; 38import android.graphics.Matrix; 39import android.graphics.Point; 40import android.graphics.PointF; 41import android.graphics.Rect; 42import android.graphics.Region.Op; 43import android.graphics.drawable.Drawable; 44import android.net.Uri; 45import android.os.IBinder; 46import android.os.Parcelable; 47import android.util.AttributeSet; 48import android.util.Log; 49import android.util.SparseArray; 50import android.view.Choreographer; 51import android.view.Display; 52import android.view.MotionEvent; 53import android.view.View; 54import android.view.ViewGroup; 55import android.view.animation.DecelerateInterpolator; 56import android.view.animation.Interpolator; 57import android.widget.TextView; 58 59import com.android.launcher3.FolderIcon.FolderRingAnimator; 60import com.android.launcher3.Launcher.CustomContentCallbacks; 61import com.android.launcher3.LauncherSettings.Favorites; 62 63import java.util.ArrayList; 64import java.util.HashMap; 65import java.util.HashSet; 66import java.util.Iterator; 67 68/** 69 * The workspace is a wide area with a wallpaper and a finite number of pages. 70 * Each page contains a number of icons, folders or widgets the user can 71 * interact with. A workspace is meant to be used with a fixed width only. 72 */ 73public class Workspace extends SmoothPagedView 74 implements DropTarget, DragSource, DragScroller, View.OnTouchListener, 75 DragController.DragListener, LauncherTransitionable, ViewGroup.OnHierarchyChangeListener, 76 Insettable { 77 private static final String TAG = "Launcher.Workspace"; 78 79 // Y rotation to apply to the workspace screens 80 private static final float WORKSPACE_OVERSCROLL_ROTATION = 24f; 81 82 private static final int CHILDREN_OUTLINE_FADE_OUT_DELAY = 0; 83 private static final int CHILDREN_OUTLINE_FADE_OUT_DURATION = 375; 84 private static final int CHILDREN_OUTLINE_FADE_IN_DURATION = 100; 85 86 private static final int BACKGROUND_FADE_OUT_DURATION = 350; 87 private static final int ADJACENT_SCREEN_DROP_DURATION = 300; 88 private static final int FLING_THRESHOLD_VELOCITY = 500; 89 90 private static final float ALPHA_CUTOFF_THRESHOLD = 0.01f; 91 92 // These animators are used to fade the children's outlines 93 private ObjectAnimator mChildrenOutlineFadeInAnimation; 94 private ObjectAnimator mChildrenOutlineFadeOutAnimation; 95 private float mChildrenOutlineAlpha = 0; 96 97 // These properties refer to the background protection gradient used for AllApps and Customize 98 private ValueAnimator mBackgroundFadeInAnimation; 99 private ValueAnimator mBackgroundFadeOutAnimation; 100 private Drawable mBackground; 101 boolean mDrawBackground = true; 102 private float mBackgroundAlpha = 0; 103 104 private static final long CUSTOM_CONTENT_GESTURE_DELAY = 200; 105 private long mTouchDownTime = -1; 106 private long mCustomContentShowTime = -1; 107 108 private LayoutTransition mLayoutTransition; 109 private final WallpaperManager mWallpaperManager; 110 private IBinder mWindowToken; 111 112 private int mOriginalDefaultPage; 113 private int mDefaultPage; 114 115 private ShortcutAndWidgetContainer mDragSourceInternal; 116 117 // The screen id used for the empty screen always present to the right. 118 private final static long EXTRA_EMPTY_SCREEN_ID = -201; 119 private final static long CUSTOM_CONTENT_SCREEN_ID = -301; 120 121 private HashMap<Long, CellLayout> mWorkspaceScreens = new HashMap<Long, CellLayout>(); 122 private ArrayList<Long> mScreenOrder = new ArrayList<Long>(); 123 124 /** 125 * CellInfo for the cell that is currently being dragged 126 */ 127 private CellLayout.CellInfo mDragInfo; 128 129 /** 130 * Target drop area calculated during last acceptDrop call. 131 */ 132 private int[] mTargetCell = new int[2]; 133 private int mDragOverX = -1; 134 private int mDragOverY = -1; 135 136 static Rect mLandscapeCellLayoutMetrics = null; 137 static Rect mPortraitCellLayoutMetrics = null; 138 139 CustomContentCallbacks mCustomContentCallbacks; 140 boolean mCustomContentShowing; 141 private float mLastCustomContentScrollProgress = -1f; 142 143 /** 144 * The CellLayout that is currently being dragged over 145 */ 146 private CellLayout mDragTargetLayout = null; 147 /** 148 * The CellLayout that we will show as glowing 149 */ 150 private CellLayout mDragOverlappingLayout = null; 151 152 /** 153 * The CellLayout which will be dropped to 154 */ 155 private CellLayout mDropToLayout = null; 156 157 private Launcher mLauncher; 158 private IconCache mIconCache; 159 private DragController mDragController; 160 161 // These are temporary variables to prevent having to allocate a new object just to 162 // return an (x, y) value from helper functions. Do NOT use them to maintain other state. 163 private int[] mTempCell = new int[2]; 164 private int[] mTempPt = new int[2]; 165 private int[] mTempEstimate = new int[2]; 166 private float[] mDragViewVisualCenter = new float[2]; 167 private float[] mTempCellLayoutCenterCoordinates = new float[2]; 168 private Matrix mTempInverseMatrix = new Matrix(); 169 170 private SpringLoadedDragController mSpringLoadedDragController; 171 private float mSpringLoadedShrinkFactor; 172 private float mOverviewModeShrinkFactor; 173 private int mOverviewModePageOffset; 174 175 // State variable that indicates whether the pages are small (ie when you're 176 // in all apps or customize mode) 177 178 enum State { NORMAL, SPRING_LOADED, SMALL, OVERVIEW}; 179 private State mState = State.NORMAL; 180 private boolean mIsSwitchingState = false; 181 182 boolean mAnimatingViewIntoPlace = false; 183 boolean mIsDragOccuring = false; 184 boolean mChildrenLayersEnabled = true; 185 186 private boolean mStripScreensOnPageStopMoving = false; 187 188 /** Is the user is dragging an item near the edge of a page? */ 189 private boolean mInScrollArea = false; 190 191 private HolographicOutlineHelper mOutlineHelper; 192 private Bitmap mDragOutline = null; 193 private final Rect mTempRect = new Rect(); 194 private final int[] mTempXY = new int[2]; 195 private int[] mTempVisiblePagesRange = new int[2]; 196 private boolean mOverscrollTransformsSet; 197 private float mLastOverscrollPivotX; 198 public static final int DRAG_BITMAP_PADDING = 2; 199 private boolean mWorkspaceFadeInAdjacentScreens; 200 201 WallpaperOffsetInterpolator mWallpaperOffset; 202 private Runnable mDelayedResizeRunnable; 203 private Runnable mDelayedSnapToPageRunnable; 204 private Point mDisplaySize = new Point(); 205 private int mCameraDistance; 206 207 // Variables relating to the creation of user folders by hovering shortcuts over shortcuts 208 private static final int FOLDER_CREATION_TIMEOUT = 0; 209 private static final int REORDER_TIMEOUT = 250; 210 private final Alarm mFolderCreationAlarm = new Alarm(); 211 private final Alarm mReorderAlarm = new Alarm(); 212 private FolderRingAnimator mDragFolderRingAnimator = null; 213 private FolderIcon mDragOverFolderIcon = null; 214 private boolean mCreateUserFolderOnDrop = false; 215 private boolean mAddToExistingFolderOnDrop = false; 216 private DropTarget.DragEnforcer mDragEnforcer; 217 private float mMaxDistanceForFolderCreation; 218 219 // Variables relating to touch disambiguation (scrolling workspace vs. scrolling a widget) 220 private float mXDown; 221 private float mYDown; 222 final static float START_DAMPING_TOUCH_SLOP_ANGLE = (float) Math.PI / 6; 223 final static float MAX_SWIPE_ANGLE = (float) Math.PI / 3; 224 final static float TOUCH_SLOP_DAMPING_FACTOR = 4; 225 226 // Relating to the animation of items being dropped externally 227 public static final int ANIMATE_INTO_POSITION_AND_DISAPPEAR = 0; 228 public static final int ANIMATE_INTO_POSITION_AND_REMAIN = 1; 229 public static final int ANIMATE_INTO_POSITION_AND_RESIZE = 2; 230 public static final int COMPLETE_TWO_STAGE_WIDGET_DROP_ANIMATION = 3; 231 public static final int CANCEL_TWO_STAGE_WIDGET_DROP_ANIMATION = 4; 232 233 // Related to dragging, folder creation and reordering 234 private static final int DRAG_MODE_NONE = 0; 235 private static final int DRAG_MODE_CREATE_FOLDER = 1; 236 private static final int DRAG_MODE_ADD_TO_FOLDER = 2; 237 private static final int DRAG_MODE_REORDER = 3; 238 private int mDragMode = DRAG_MODE_NONE; 239 private int mLastReorderX = -1; 240 private int mLastReorderY = -1; 241 242 private SparseArray<Parcelable> mSavedStates; 243 private final ArrayList<Integer> mRestoredPages = new ArrayList<Integer>(); 244 245 // These variables are used for storing the initial and final values during workspace animations 246 private int mSavedScrollX; 247 private float mSavedRotationY; 248 private float mSavedTranslationX; 249 250 private float mCurrentScale; 251 private float mNewScale; 252 private float[] mOldBackgroundAlphas; 253 private float[] mOldAlphas; 254 private float[] mNewBackgroundAlphas; 255 private float[] mNewAlphas; 256 private int mLastChildCount = -1; 257 private float mTransitionProgress; 258 259 private Runnable mDeferredAction; 260 private boolean mDeferDropAfterUninstall; 261 private boolean mUninstallSuccessful; 262 263 private final Runnable mBindPages = new Runnable() { 264 @Override 265 public void run() { 266 mLauncher.getModel().bindRemainingSynchronousPages(); 267 } 268 }; 269 270 /** 271 * Used to inflate the Workspace from XML. 272 * 273 * @param context The application's context. 274 * @param attrs The attributes set containing the Workspace's customization values. 275 */ 276 public Workspace(Context context, AttributeSet attrs) { 277 this(context, attrs, 0); 278 } 279 280 /** 281 * Used to inflate the Workspace from XML. 282 * 283 * @param context The application's context. 284 * @param attrs The attributes set containing the Workspace's customization values. 285 * @param defStyle Unused. 286 */ 287 public Workspace(Context context, AttributeSet attrs, int defStyle) { 288 super(context, attrs, defStyle); 289 mContentIsRefreshable = false; 290 291 mOutlineHelper = HolographicOutlineHelper.obtain(context); 292 293 mDragEnforcer = new DropTarget.DragEnforcer(context); 294 // With workspace, data is available straight from the get-go 295 setDataIsReady(); 296 297 mLauncher = (Launcher) context; 298 final Resources res = getResources(); 299 mWorkspaceFadeInAdjacentScreens = res.getBoolean(R.bool.config_workspaceFadeAdjacentScreens); 300 mFadeInAdjacentScreens = false; 301 mWallpaperManager = WallpaperManager.getInstance(context); 302 303 TypedArray a = context.obtainStyledAttributes(attrs, 304 R.styleable.Workspace, defStyle, 0); 305 mSpringLoadedShrinkFactor = 306 res.getInteger(R.integer.config_workspaceSpringLoadShrinkPercentage) / 100.0f; 307 mOverviewModeShrinkFactor = 308 res.getInteger(R.integer.config_workspaceOverviewShrinkPercentage) / 100.0f; 309 mOverviewModePageOffset = res.getDimensionPixelSize(R.dimen.overview_mode_page_offset); 310 mCameraDistance = res.getInteger(R.integer.config_cameraDistance); 311 mOriginalDefaultPage = mDefaultPage = a.getInt(R.styleable.Workspace_defaultScreen, 1); 312 a.recycle(); 313 314 setOnHierarchyChangeListener(this); 315 setHapticFeedbackEnabled(false); 316 317 initWorkspace(); 318 319 // Disable multitouch across the workspace/all apps/customize tray 320 setMotionEventSplittingEnabled(true); 321 322 // Unless otherwise specified this view is important for accessibility. 323 if (getImportantForAccessibility() == View.IMPORTANT_FOR_ACCESSIBILITY_AUTO) { 324 setImportantForAccessibility(View.IMPORTANT_FOR_ACCESSIBILITY_YES); 325 } 326 } 327 328 @Override 329 public void setInsets(Rect insets) { 330 mInsets.set(insets); 331 } 332 333 // estimate the size of a widget with spans hSpan, vSpan. return MAX_VALUE for each 334 // dimension if unsuccessful 335 public int[] estimateItemSize(int hSpan, int vSpan, 336 ItemInfo itemInfo, boolean springLoaded) { 337 int[] size = new int[2]; 338 if (getChildCount() > 0) { 339 CellLayout cl = (CellLayout) mLauncher.getWorkspace().getChildAt(0); 340 Rect r = estimateItemPosition(cl, itemInfo, 0, 0, hSpan, vSpan); 341 size[0] = r.width(); 342 size[1] = r.height(); 343 if (springLoaded) { 344 size[0] *= mSpringLoadedShrinkFactor; 345 size[1] *= mSpringLoadedShrinkFactor; 346 } 347 return size; 348 } else { 349 size[0] = Integer.MAX_VALUE; 350 size[1] = Integer.MAX_VALUE; 351 return size; 352 } 353 } 354 355 public Rect estimateItemPosition(CellLayout cl, ItemInfo pendingInfo, 356 int hCell, int vCell, int hSpan, int vSpan) { 357 Rect r = new Rect(); 358 cl.cellToRect(hCell, vCell, hSpan, vSpan, r); 359 return r; 360 } 361 362 public void onDragStart(final DragSource source, Object info, int dragAction) { 363 mIsDragOccuring = true; 364 updateChildrenLayersEnabled(false); 365 mLauncher.lockScreenOrientation(); 366 mLauncher.onInteractionBegin(); 367 setChildrenBackgroundAlphaMultipliers(1f); 368 // Prevent any Un/InstallShortcutReceivers from updating the db while we are dragging 369 InstallShortcutReceiver.enableInstallQueue(); 370 UninstallShortcutReceiver.enableUninstallQueue(); 371 post(new Runnable() { 372 @Override 373 public void run() { 374 if (mIsDragOccuring) { 375 addExtraEmptyScreenOnDrag(); 376 } 377 } 378 }); 379 } 380 381 public void onDragEnd() { 382 mIsDragOccuring = false; 383 updateChildrenLayersEnabled(false); 384 mLauncher.unlockScreenOrientation(false); 385 386 // Re-enable any Un/InstallShortcutReceiver and now process any queued items 387 InstallShortcutReceiver.disableAndFlushInstallQueue(getContext()); 388 UninstallShortcutReceiver.disableAndFlushUninstallQueue(getContext()); 389 390 removeExtraEmptyScreen(); 391 mDragSourceInternal = null; 392 mLauncher.onInteractionEnd(); 393 } 394 395 /** 396 * Initializes various states for this workspace. 397 */ 398 protected void initWorkspace() { 399 Context context = getContext(); 400 mCurrentPage = mDefaultPage; 401 Launcher.setScreen(mCurrentPage); 402 LauncherAppState app = LauncherAppState.getInstance(); 403 DeviceProfile grid = app.getDynamicGrid().getDeviceProfile(); 404 mIconCache = app.getIconCache(); 405 setWillNotDraw(false); 406 setClipChildren(false); 407 setClipToPadding(false); 408 setChildrenDrawnWithCacheEnabled(true); 409 410 // This is a bit of a hack to account for the fact that we translate the workspace 411 // up a bit, and still need to draw the background covering the whole screen. 412 setMinScale(mOverviewModeShrinkFactor - 0.2f); 413 setupLayoutTransition(); 414 415 final Resources res = getResources(); 416 try { 417 mBackground = res.getDrawable(R.drawable.apps_customize_bg); 418 } catch (Resources.NotFoundException e) { 419 // In this case, we will skip drawing background protection 420 } 421 422 mWallpaperOffset = new WallpaperOffsetInterpolator(); 423 Display display = mLauncher.getWindowManager().getDefaultDisplay(); 424 display.getSize(mDisplaySize); 425 426 mMaxDistanceForFolderCreation = (0.55f * grid.iconSizePx); 427 mFlingThresholdVelocity = (int) (FLING_THRESHOLD_VELOCITY * mDensity); 428 } 429 430 private void setupLayoutTransition() { 431 // We want to show layout transitions when pages are deleted, to close the gap. 432 mLayoutTransition = new LayoutTransition(); 433 mLayoutTransition.enableTransitionType(LayoutTransition.DISAPPEARING); 434 mLayoutTransition.enableTransitionType(LayoutTransition.CHANGE_DISAPPEARING); 435 mLayoutTransition.disableTransitionType(LayoutTransition.APPEARING); 436 mLayoutTransition.disableTransitionType(LayoutTransition.CHANGE_APPEARING); 437 setLayoutTransition(mLayoutTransition); 438 } 439 440 @Override 441 protected int getScrollMode() { 442 return SmoothPagedView.X_LARGE_MODE; 443 } 444 445 @Override 446 public void onChildViewAdded(View parent, View child) { 447 if (!(child instanceof CellLayout)) { 448 throw new IllegalArgumentException("A Workspace can only have CellLayout children."); 449 } 450 CellLayout cl = ((CellLayout) child); 451 cl.setOnInterceptTouchListener(this); 452 cl.setClickable(true); 453 cl.setContentDescription(getContext().getString( 454 R.string.workspace_description_format, getChildCount())); 455 456 super.onChildViewAdded(parent, child); 457 } 458 459 protected boolean shouldDrawChild(View child) { 460 final CellLayout cl = (CellLayout) child; 461 return super.shouldDrawChild(child) && 462 (cl.getShortcutsAndWidgets().getAlpha() > 0 || 463 cl.getBackgroundAlpha() > 0); 464 } 465 466 /** 467 * @return The open folder on the current screen, or null if there is none 468 */ 469 Folder getOpenFolder() { 470 DragLayer dragLayer = mLauncher.getDragLayer(); 471 int count = dragLayer.getChildCount(); 472 for (int i = 0; i < count; i++) { 473 View child = dragLayer.getChildAt(i); 474 if (child instanceof Folder) { 475 Folder folder = (Folder) child; 476 if (folder.getInfo().opened) 477 return folder; 478 } 479 } 480 return null; 481 } 482 483 boolean isTouchActive() { 484 return mTouchState != TOUCH_STATE_REST; 485 } 486 487 public void removeAllWorkspaceScreens() { 488 // Remove the pages and clear the screen models 489 removeAllViews(); 490 mScreenOrder.clear(); 491 mWorkspaceScreens.clear(); 492 } 493 494 public long insertNewWorkspaceScreenBeforeEmptyScreen(long screenId) { 495 // Find the index to insert this view into. If the empty screen exists, then 496 // insert it before that. 497 int insertIndex = mScreenOrder.indexOf(EXTRA_EMPTY_SCREEN_ID); 498 if (insertIndex < 0) { 499 insertIndex = mScreenOrder.size(); 500 } 501 return insertNewWorkspaceScreen(screenId, insertIndex); 502 } 503 504 public long insertNewWorkspaceScreen(long screenId) { 505 return insertNewWorkspaceScreen(screenId, getChildCount()); 506 } 507 508 public long insertNewWorkspaceScreen(long screenId, int insertIndex) { 509 if (mWorkspaceScreens.containsKey(screenId)) { 510 throw new RuntimeException("Screen id " + screenId + " already exists!"); 511 } 512 513 CellLayout newScreen = (CellLayout) 514 mLauncher.getLayoutInflater().inflate(R.layout.workspace_screen, null); 515 516 newScreen.setOnLongClickListener(mLongClickListener); 517 newScreen.setOnClickListener(mLauncher); 518 newScreen.setSoundEffectsEnabled(false); 519 mWorkspaceScreens.put(screenId, newScreen); 520 mScreenOrder.add(insertIndex, screenId); 521 addView(newScreen, insertIndex); 522 return screenId; 523 } 524 525 public void createCustomContentPage() { 526 CellLayout customScreen = (CellLayout) 527 mLauncher.getLayoutInflater().inflate(R.layout.workspace_screen, null); 528 529 mWorkspaceScreens.put(CUSTOM_CONTENT_SCREEN_ID, customScreen); 530 mScreenOrder.add(0, CUSTOM_CONTENT_SCREEN_ID); 531 532 // We want no padding on the custom content 533 customScreen.setPadding(0, 0, 0, 0); 534 535 addFullScreenPage(customScreen); 536 537 // Ensure that the current page and default page are maintained. 538 mDefaultPage = mOriginalDefaultPage + 1; 539 setCurrentPage(getCurrentPage() + 1); 540 } 541 542 public void removeCustomContentPage() { 543 CellLayout customScreen = getScreenWithId(CUSTOM_CONTENT_SCREEN_ID); 544 if (customScreen == null) { 545 throw new RuntimeException("Expected custom content screen to exist"); 546 } 547 548 mWorkspaceScreens.remove(CUSTOM_CONTENT_SCREEN_ID); 549 mScreenOrder.remove(CUSTOM_CONTENT_SCREEN_ID); 550 removeView(customScreen); 551 mCustomContentCallbacks = null; 552 553 // Ensure that the current page and default page are maintained. 554 mDefaultPage = mOriginalDefaultPage - 1; 555 setCurrentPage(getCurrentPage() - 1); 556 } 557 558 public void addToCustomContentPage(View customContent, CustomContentCallbacks callbacks) { 559 if (getPageIndexForScreenId(CUSTOM_CONTENT_SCREEN_ID) < 0) { 560 throw new RuntimeException("Expected custom content screen to exist"); 561 } 562 563 // Add the custom content to the full screen custom page 564 CellLayout customScreen = getScreenWithId(CUSTOM_CONTENT_SCREEN_ID); 565 int spanX = customScreen.getCountX(); 566 int spanY = customScreen.getCountY(); 567 CellLayout.LayoutParams lp = new CellLayout.LayoutParams(0, 0, spanX, spanY); 568 lp.canReorder = false; 569 lp.isFullscreen = true; 570 if (customContent instanceof Insettable) { 571 ((Insettable)customContent).setInsets(mInsets); 572 } 573 customScreen.addViewToCellLayout(customContent, 0, 0, lp, true); 574 575 mCustomContentCallbacks = callbacks; 576 } 577 578 public void addExtraEmptyScreenOnDrag() { 579 boolean lastChildOnScreen = false; 580 boolean childOnFinalScreen = false; 581 582 if (mDragSourceInternal != null) { 583 if (mDragSourceInternal.getChildCount() == 1) { 584 lastChildOnScreen = true; 585 } 586 CellLayout cl = (CellLayout) mDragSourceInternal.getParent(); 587 if (indexOfChild(cl) == getChildCount() - 1) { 588 childOnFinalScreen = true; 589 } 590 } 591 592 // If this is the last item on the final screen 593 if (lastChildOnScreen && childOnFinalScreen) { 594 return; 595 } 596 if (!mWorkspaceScreens.containsKey(EXTRA_EMPTY_SCREEN_ID)) { 597 insertNewWorkspaceScreen(EXTRA_EMPTY_SCREEN_ID); 598 } 599 } 600 601 public boolean addExtraEmptyScreen() { 602 if (!mWorkspaceScreens.containsKey(EXTRA_EMPTY_SCREEN_ID)) { 603 insertNewWorkspaceScreen(EXTRA_EMPTY_SCREEN_ID); 604 return true; 605 } 606 return false; 607 } 608 609 public void removeExtraEmptyScreen() { 610 if (hasExtraEmptyScreen()) { 611 CellLayout cl = mWorkspaceScreens.get(EXTRA_EMPTY_SCREEN_ID); 612 mWorkspaceScreens.remove(EXTRA_EMPTY_SCREEN_ID); 613 mScreenOrder.remove(EXTRA_EMPTY_SCREEN_ID); 614 removeView(cl); 615 } 616 } 617 618 public boolean hasExtraEmptyScreen() { 619 int nScreens = getChildCount(); 620 nScreens = hasCustomContent() ? nScreens - 1 : nScreens; 621 return mWorkspaceScreens.containsKey(EXTRA_EMPTY_SCREEN_ID) && nScreens > 1; 622 } 623 624 public long commitExtraEmptyScreen() { 625 int index = getPageIndexForScreenId(EXTRA_EMPTY_SCREEN_ID); 626 CellLayout cl = mWorkspaceScreens.get(EXTRA_EMPTY_SCREEN_ID); 627 mWorkspaceScreens.remove(EXTRA_EMPTY_SCREEN_ID); 628 mScreenOrder.remove(EXTRA_EMPTY_SCREEN_ID); 629 630 long newId = LauncherAppState.getLauncherProvider().generateNewScreenId(); 631 mWorkspaceScreens.put(newId, cl); 632 mScreenOrder.add(newId); 633 634 // Update the page indicator marker 635 if (getPageIndicator() != null) { 636 getPageIndicator().updateMarker(index, getPageIndicatorMarker(index)); 637 } 638 639 // Update the model for the new screen 640 mLauncher.getModel().updateWorkspaceScreenOrder(mLauncher, mScreenOrder); 641 642 return newId; 643 } 644 645 646 public CellLayout getScreenWithId(long screenId) { 647 CellLayout layout = mWorkspaceScreens.get(screenId); 648 return layout; 649 } 650 651 public long getIdForScreen(CellLayout layout) { 652 Iterator<Long> iter = mWorkspaceScreens.keySet().iterator(); 653 while (iter.hasNext()) { 654 long id = iter.next(); 655 if (mWorkspaceScreens.get(id) == layout) { 656 return id; 657 } 658 } 659 return -1; 660 } 661 662 public int getPageIndexForScreenId(long screenId) { 663 return indexOfChild(mWorkspaceScreens.get(screenId)); 664 } 665 666 public long getScreenIdForPageIndex(int index) { 667 if (0 <= index && index < mScreenOrder.size()) { 668 return mScreenOrder.get(index); 669 } 670 return -1; 671 } 672 673 ArrayList<Long> getScreenOrder() { 674 return mScreenOrder; 675 } 676 677 public void stripEmptyScreens() { 678 if (isPageMoving()) { 679 mStripScreensOnPageStopMoving = true; 680 return; 681 } 682 683 int currentPage = getNextPage(); 684 ArrayList<Long> removeScreens = new ArrayList<Long>(); 685 for (Long id: mWorkspaceScreens.keySet()) { 686 CellLayout cl = mWorkspaceScreens.get(id); 687 if (id >= 0 && cl.getShortcutsAndWidgets().getChildCount() == 0) { 688 removeScreens.add(id); 689 } 690 } 691 692 // We enforce at least one page to add new items to. In the case that we remove the last 693 // such screen, we convert the last screen to the empty screen 694 int minScreens = hasCustomContent() ? 2 : 1; 695 696 int pageShift = 0; 697 for (Long id: removeScreens) { 698 CellLayout cl = mWorkspaceScreens.get(id); 699 mWorkspaceScreens.remove(id); 700 mScreenOrder.remove(id); 701 702 if (getChildCount() > minScreens) { 703 if (indexOfChild(cl) < currentPage) { 704 pageShift++; 705 } 706 removeView(cl); 707 } else { 708 // if this is the last non-custom content screen, convert it to the empty screen 709 mWorkspaceScreens.put(EXTRA_EMPTY_SCREEN_ID, cl); 710 mScreenOrder.add(EXTRA_EMPTY_SCREEN_ID); 711 } 712 } 713 714 if (!removeScreens.isEmpty()) { 715 // Update the model if we have changed any screens 716 mLauncher.getModel().updateWorkspaceScreenOrder(mLauncher, mScreenOrder); 717 } 718 719 if (pageShift >= 0) { 720 setCurrentPage(currentPage - pageShift); 721 } 722 } 723 724 // See implementation for parameter definition. 725 void addInScreen(View child, long container, long screenId, 726 int x, int y, int spanX, int spanY) { 727 addInScreen(child, container, screenId, x, y, spanX, spanY, false, false); 728 } 729 730 // At bind time, we use the rank (screenId) to compute x and y for hotseat items. 731 // See implementation for parameter definition. 732 void addInScreenFromBind(View child, long container, long screenId, int x, int y, 733 int spanX, int spanY) { 734 addInScreen(child, container, screenId, x, y, spanX, spanY, false, true); 735 } 736 737 // See implementation for parameter definition. 738 void addInScreen(View child, long container, long screenId, int x, int y, int spanX, int spanY, 739 boolean insert) { 740 addInScreen(child, container, screenId, x, y, spanX, spanY, insert, false); 741 } 742 743 /** 744 * Adds the specified child in the specified screen. The position and dimension of 745 * the child are defined by x, y, spanX and spanY. 746 * 747 * @param child The child to add in one of the workspace's screens. 748 * @param screenId The screen in which to add the child. 749 * @param x The X position of the child in the screen's grid. 750 * @param y The Y position of the child in the screen's grid. 751 * @param spanX The number of cells spanned horizontally by the child. 752 * @param spanY The number of cells spanned vertically by the child. 753 * @param insert When true, the child is inserted at the beginning of the children list. 754 * @param computeXYFromRank When true, we use the rank (stored in screenId) to compute 755 * the x and y position in which to place hotseat items. Otherwise 756 * we use the x and y position to compute the rank. 757 */ 758 void addInScreen(View child, long container, long screenId, int x, int y, int spanX, int spanY, 759 boolean insert, boolean computeXYFromRank) { 760 if (container == LauncherSettings.Favorites.CONTAINER_DESKTOP) { 761 if (getScreenWithId(screenId) == null) { 762 Log.e(TAG, "Skipping child, screenId " + screenId + " not found"); 763 // DEBUGGING - Print out the stack trace to see where we are adding from 764 new Throwable().printStackTrace(); 765 return; 766 } 767 } 768 if (screenId == EXTRA_EMPTY_SCREEN_ID) { 769 // This should never happen 770 throw new RuntimeException("Screen id should not be EXTRA_EMPTY_SCREEN_ID"); 771 } 772 773 final CellLayout layout; 774 if (container == LauncherSettings.Favorites.CONTAINER_HOTSEAT) { 775 layout = mLauncher.getHotseat().getLayout(); 776 child.setOnKeyListener(null); 777 778 // Hide folder title in the hotseat 779 if (child instanceof FolderIcon) { 780 ((FolderIcon) child).setTextVisible(false); 781 } 782 783 if (computeXYFromRank) { 784 x = mLauncher.getHotseat().getCellXFromOrder((int) screenId); 785 y = mLauncher.getHotseat().getCellYFromOrder((int) screenId); 786 } else { 787 screenId = mLauncher.getHotseat().getOrderInHotseat(x, y); 788 } 789 } else { 790 // Show folder title if not in the hotseat 791 if (child instanceof FolderIcon) { 792 ((FolderIcon) child).setTextVisible(true); 793 } 794 layout = getScreenWithId(screenId); 795 child.setOnKeyListener(new IconKeyEventListener()); 796 } 797 798 ViewGroup.LayoutParams genericLp = child.getLayoutParams(); 799 CellLayout.LayoutParams lp; 800 if (genericLp == null || !(genericLp instanceof CellLayout.LayoutParams)) { 801 lp = new CellLayout.LayoutParams(x, y, spanX, spanY); 802 } else { 803 lp = (CellLayout.LayoutParams) genericLp; 804 lp.cellX = x; 805 lp.cellY = y; 806 lp.cellHSpan = spanX; 807 lp.cellVSpan = spanY; 808 } 809 810 if (spanX < 0 && spanY < 0) { 811 lp.isLockedToGrid = false; 812 } 813 814 // Get the canonical child id to uniquely represent this view in this screen 815 int childId = LauncherModel.getCellLayoutChildId(container, screenId, x, y, spanX, spanY); 816 boolean markCellsAsOccupied = !(child instanceof Folder); 817 if (!layout.addViewToCellLayout(child, insert ? 0 : -1, childId, lp, markCellsAsOccupied)) { 818 // TODO: This branch occurs when the workspace is adding views 819 // outside of the defined grid 820 // maybe we should be deleting these items from the LauncherModel? 821 Launcher.addDumpLog(TAG, "Failed to add to item at (" + lp.cellX + "," + lp.cellY + ") to CellLayout", true); 822 } 823 824 if (!(child instanceof Folder)) { 825 child.setHapticFeedbackEnabled(false); 826 child.setOnLongClickListener(mLongClickListener); 827 } 828 if (child instanceof DropTarget) { 829 mDragController.addDropTarget((DropTarget) child); 830 } 831 } 832 833 /** 834 * Called directly from a CellLayout (not by the framework), after we've been added as a 835 * listener via setOnInterceptTouchEventListener(). This allows us to tell the CellLayout 836 * that it should intercept touch events, which is not something that is normally supported. 837 */ 838 @Override 839 public boolean onTouch(View v, MotionEvent event) { 840 return (isSmall() || !isFinishedSwitchingState()) 841 || (!isSmall() && indexOfChild(v) != mCurrentPage); 842 } 843 844 public boolean isSwitchingState() { 845 return mIsSwitchingState; 846 } 847 848 /** This differs from isSwitchingState in that we take into account how far the transition 849 * has completed. */ 850 public boolean isFinishedSwitchingState() { 851 return !mIsSwitchingState || (mTransitionProgress > 0.5f); 852 } 853 854 protected void onWindowVisibilityChanged (int visibility) { 855 mLauncher.onWindowVisibilityChanged(visibility); 856 if (mCustomContentShowing && mCustomContentCallbacks != null) { 857 if (visibility == View.VISIBLE) { 858 mCustomContentCallbacks.onShow(); 859 } else if (visibility == View.GONE) { 860 mCustomContentCallbacks.onHide(); 861 } 862 } 863 } 864 865 @Override 866 public boolean dispatchUnhandledMove(View focused, int direction) { 867 if (isSmall() || !isFinishedSwitchingState()) { 868 // when the home screens are shrunken, shouldn't allow side-scrolling 869 return false; 870 } 871 return super.dispatchUnhandledMove(focused, direction); 872 } 873 874 @Override 875 public boolean onInterceptTouchEvent(MotionEvent ev) { 876 switch (ev.getAction() & MotionEvent.ACTION_MASK) { 877 case MotionEvent.ACTION_DOWN: 878 mXDown = ev.getX(); 879 mYDown = ev.getY(); 880 mTouchDownTime = System.currentTimeMillis(); 881 break; 882 case MotionEvent.ACTION_POINTER_UP: 883 case MotionEvent.ACTION_UP: 884 if (mTouchState == TOUCH_STATE_REST) { 885 final CellLayout currentPage = (CellLayout) getChildAt(mCurrentPage); 886 if (!currentPage.lastDownOnOccupiedCell()) { 887 onWallpaperTap(ev); 888 } 889 } 890 } 891 return super.onInterceptTouchEvent(ev); 892 } 893 894 protected void reinflateWidgetsIfNecessary() { 895 final int clCount = getChildCount(); 896 for (int i = 0; i < clCount; i++) { 897 CellLayout cl = (CellLayout) getChildAt(i); 898 ShortcutAndWidgetContainer swc = cl.getShortcutsAndWidgets(); 899 final int itemCount = swc.getChildCount(); 900 for (int j = 0; j < itemCount; j++) { 901 View v = swc.getChildAt(j); 902 903 if (v.getTag() instanceof LauncherAppWidgetInfo) { 904 LauncherAppWidgetInfo info = (LauncherAppWidgetInfo) v.getTag(); 905 LauncherAppWidgetHostView lahv = (LauncherAppWidgetHostView) info.hostView; 906 if (lahv != null && lahv.orientationChangedSincedInflation()) { 907 mLauncher.removeAppWidget(info); 908 // Remove the current widget which is inflated with the wrong orientation 909 cl.removeView(lahv); 910 mLauncher.bindAppWidget(info); 911 } 912 } 913 } 914 } 915 } 916 917 @Override 918 protected void determineScrollingStart(MotionEvent ev) { 919 if (!isFinishedSwitchingState()) return; 920 921 float deltaX = ev.getX() - mXDown; 922 float absDeltaX = Math.abs(deltaX); 923 float absDeltaY = Math.abs(ev.getY() - mYDown); 924 925 if (Float.compare(absDeltaX, 0f) == 0) return; 926 927 float slope = absDeltaY / absDeltaX; 928 float theta = (float) Math.atan(slope); 929 930 if (absDeltaX > mTouchSlop || absDeltaY > mTouchSlop) { 931 cancelCurrentPageLongPress(); 932 } 933 934 boolean passRightSwipesToCustomContent = 935 (mTouchDownTime - mCustomContentShowTime) > CUSTOM_CONTENT_GESTURE_DELAY; 936 937 boolean swipeInIgnoreDirection = isLayoutRtl() ? deltaX < 0 : deltaX > 0; 938 if (swipeInIgnoreDirection && getScreenIdForPageIndex(getCurrentPage()) == 939 CUSTOM_CONTENT_SCREEN_ID && passRightSwipesToCustomContent) { 940 // Pass swipes to the right to the custom content page. 941 return; 942 } 943 944 if (theta > MAX_SWIPE_ANGLE) { 945 // Above MAX_SWIPE_ANGLE, we don't want to ever start scrolling the workspace 946 return; 947 } else if (theta > START_DAMPING_TOUCH_SLOP_ANGLE) { 948 // Above START_DAMPING_TOUCH_SLOP_ANGLE and below MAX_SWIPE_ANGLE, we want to 949 // increase the touch slop to make it harder to begin scrolling the workspace. This 950 // results in vertically scrolling widgets to more easily. The higher the angle, the 951 // more we increase touch slop. 952 theta -= START_DAMPING_TOUCH_SLOP_ANGLE; 953 float extraRatio = (float) 954 Math.sqrt((theta / (MAX_SWIPE_ANGLE - START_DAMPING_TOUCH_SLOP_ANGLE))); 955 super.determineScrollingStart(ev, 1 + TOUCH_SLOP_DAMPING_FACTOR * extraRatio); 956 } else { 957 // Below START_DAMPING_TOUCH_SLOP_ANGLE, we don't do anything special 958 super.determineScrollingStart(ev); 959 } 960 } 961 962 protected void onPageBeginMoving() { 963 super.onPageBeginMoving(); 964 965 if (isHardwareAccelerated()) { 966 updateChildrenLayersEnabled(false); 967 } else { 968 if (mNextPage != INVALID_PAGE) { 969 // we're snapping to a particular screen 970 enableChildrenCache(mCurrentPage, mNextPage); 971 } else { 972 // this is when user is actively dragging a particular screen, they might 973 // swipe it either left or right (but we won't advance by more than one screen) 974 enableChildrenCache(mCurrentPage - 1, mCurrentPage + 1); 975 } 976 } 977 978 // Only show page outlines as we pan if we are on large screen 979 if (LauncherAppState.getInstance().isScreenLarge()) { 980 showOutlines(); 981 } 982 983 // If we are not fading in adjacent screens, we still need to restore the alpha in case the 984 // user scrolls while we are transitioning (should not affect dispatchDraw optimizations) 985 if (!mWorkspaceFadeInAdjacentScreens) { 986 for (int i = 0; i < getChildCount(); ++i) { 987 ((CellLayout) getPageAt(i)).setShortcutAndWidgetAlpha(1f); 988 } 989 } 990 } 991 992 protected void onPageEndMoving() { 993 super.onPageEndMoving(); 994 995 if (isHardwareAccelerated()) { 996 updateChildrenLayersEnabled(false); 997 } else { 998 clearChildrenCache(); 999 } 1000 1001 if (mDragController.isDragging()) { 1002 if (isSmall()) { 1003 // If we are in springloaded mode, then force an event to check if the current touch 1004 // is under a new page (to scroll to) 1005 mDragController.forceTouchMove(); 1006 } 1007 } else { 1008 // If we are not mid-dragging, hide the page outlines if we are on a large screen 1009 if (LauncherAppState.getInstance().isScreenLarge()) { 1010 hideOutlines(); 1011 } 1012 } 1013 1014 if (mDelayedResizeRunnable != null) { 1015 mDelayedResizeRunnable.run(); 1016 mDelayedResizeRunnable = null; 1017 } 1018 1019 if (mDelayedSnapToPageRunnable != null) { 1020 mDelayedSnapToPageRunnable.run(); 1021 mDelayedSnapToPageRunnable = null; 1022 } 1023 if (mStripScreensOnPageStopMoving) { 1024 stripEmptyScreens(); 1025 mStripScreensOnPageStopMoving = false; 1026 } 1027 1028 if (hasCustomContent() && getNextPage() == 0 && !mCustomContentShowing) { 1029 mCustomContentShowing = true; 1030 if (mCustomContentCallbacks != null) { 1031 mCustomContentCallbacks.onShow(); 1032 mCustomContentShowTime = System.currentTimeMillis(); 1033 mLauncher.setVoiceButtonProxyVisible(false); 1034 } 1035 } else if (hasCustomContent() && getNextPage() != 0 && mCustomContentShowing) { 1036 mCustomContentShowing = false; 1037 if (mCustomContentCallbacks != null) { 1038 mCustomContentCallbacks.onHide(); 1039 mLauncher.resetQSBScroll(); 1040 mLauncher.setVoiceButtonProxyVisible(true); 1041 } 1042 } 1043 } 1044 1045 @Override 1046 protected void notifyPageSwitchListener() { 1047 super.notifyPageSwitchListener(); 1048 Launcher.setScreen(mCurrentPage); 1049 }; 1050 1051 protected void setWallpaperDimension() { 1052 String spKey = WallpaperCropActivity.getSharedPreferencesKey(); 1053 SharedPreferences sp = mLauncher.getSharedPreferences(spKey, Context.MODE_PRIVATE); 1054 WallpaperPickerActivity.suggestWallpaperDimension(mLauncher.getResources(), 1055 sp, mLauncher.getWindowManager(), mWallpaperManager); 1056 } 1057 1058 protected void snapToPage(int whichPage, Runnable r) { 1059 if (mDelayedSnapToPageRunnable != null) { 1060 mDelayedSnapToPageRunnable.run(); 1061 } 1062 mDelayedSnapToPageRunnable = r; 1063 snapToPage(whichPage, SLOW_PAGE_SNAP_ANIMATION_DURATION); 1064 } 1065 1066 protected void snapToScreenId(long screenId, Runnable r) { 1067 snapToPage(getPageIndexForScreenId(screenId), r); 1068 } 1069 1070 class WallpaperOffsetInterpolator implements Choreographer.FrameCallback { 1071 float mFinalOffset = 0.0f; 1072 float mCurrentOffset = 0.5f; // to force an initial update 1073 //long mLastWallpaperOffsetUpdateTime; 1074 boolean mWaitingForUpdate; 1075 Choreographer mChoreographer; 1076 Interpolator mInterpolator; 1077 boolean mAnimating; 1078 long mAnimationStartTime; 1079 float mAnimationStartOffset; 1080 private final int ANIMATION_DURATION = 250; 1081 // Don't use all the wallpaper for parallax until you have at least this many pages 1082 private final int MIN_PARALLAX_PAGE_SPAN = 4; 1083 int mNumScreens; 1084 1085 public WallpaperOffsetInterpolator() { 1086 mChoreographer = Choreographer.getInstance(); 1087 mInterpolator = new DecelerateInterpolator(1.5f); 1088 } 1089 1090 @Override 1091 public void doFrame(long frameTimeNanos) { 1092 updateOffset(false); 1093 } 1094 1095 private void updateOffset(boolean force) { 1096 if (mWaitingForUpdate || force) { 1097 mWaitingForUpdate = false; 1098 if (computeScrollOffset() && mWindowToken != null) { 1099 try { 1100 mWallpaperManager.setWallpaperOffsets(mWindowToken, 1101 mWallpaperOffset.getCurrX(), 0.5f); 1102 setWallpaperOffsetSteps(); 1103 } catch (IllegalArgumentException e) { 1104 Log.e(TAG, "Error updating wallpaper offset: " + e); 1105 } 1106 } 1107 } 1108 } 1109 1110 public boolean computeScrollOffset() { 1111 final float oldOffset = mCurrentOffset; 1112 if (mAnimating) { 1113 long durationSinceAnimation = System.currentTimeMillis() - mAnimationStartTime; 1114 float t0 = durationSinceAnimation / (float) ANIMATION_DURATION; 1115 float t1 = mInterpolator.getInterpolation(t0); 1116 mCurrentOffset = mAnimationStartOffset + 1117 (mFinalOffset - mAnimationStartOffset) * t1; 1118 mAnimating = durationSinceAnimation < ANIMATION_DURATION; 1119 } else { 1120 mCurrentOffset = mFinalOffset; 1121 } 1122 1123 if (Math.abs(mCurrentOffset - mFinalOffset) > 0.0000001f) { 1124 scheduleUpdate(); 1125 } 1126 if (Math.abs(oldOffset - mCurrentOffset) > 0.0000001f) { 1127 return true; 1128 } 1129 return false; 1130 } 1131 1132 private float wallpaperOffsetForCurrentScroll() { 1133 if (getChildCount() <= 1) { 1134 return 0; 1135 } 1136 1137 // Exclude the leftmost page 1138 final int firstIndex = isLayoutRtl() ? getChildCount() - 2 : 1; 1139 // Exclude the last extra empty screen (if we have > MIN_PARALLAX_PAGE_SPAN pages) 1140 int extra = numExtraScreensToIgnore(); 1141 final int lastIndex = isLayoutRtl() ? 0 + extra : getChildCount() - 1 - extra; 1142 1143 int firstPageScrollX = getScrollForPage(firstIndex); 1144 int scrollRange = getScrollForPage(lastIndex) - firstPageScrollX; 1145 if (scrollRange == 0) { 1146 return 0; 1147 } else { 1148 // TODO: do different behavior if it's a live wallpaper? 1149 float offset = Math.min(1, (getScrollX() - firstPageScrollX) / (float) scrollRange); 1150 offset = Math.max(0, offset); 1151 // Don't use up all the wallpaper parallax until you have at least 1152 // MIN_PARALLAX_PAGE_SPAN pages 1153 int numScrollingPages = getNumScreensExcludingExtraEmptyScreenAndLeftmost(); 1154 int parallaxPageSpan = Math.max(MIN_PARALLAX_PAGE_SPAN, numScrollingPages) - 1; 1155 return offset * (numScrollingPages - 1) / parallaxPageSpan; 1156 } 1157 } 1158 1159 private int numExtraScreensToIgnore() { 1160 int numScrollingPages = getChildCount() - 1; 1161 if (numScrollingPages > MIN_PARALLAX_PAGE_SPAN && hasExtraEmptyScreen()) { 1162 return 1; 1163 } else { 1164 return 0; 1165 } 1166 } 1167 1168 private int getNumScreensExcludingExtraEmptyScreenAndLeftmost() { 1169 int numScrollingPages = getChildCount() - 1 - numExtraScreensToIgnore(); 1170 return numScrollingPages; 1171 } 1172 1173 public void syncWithScroll() { 1174 float offset = wallpaperOffsetForCurrentScroll(); 1175 mWallpaperOffset.setFinalX(offset); 1176 updateOffset(true); 1177 } 1178 1179 public float getCurrX() { 1180 return mCurrentOffset; 1181 } 1182 1183 public float getFinalX() { 1184 return mFinalOffset; 1185 } 1186 1187 private void animateToFinal() { 1188 mAnimating = true; 1189 mAnimationStartOffset = mCurrentOffset; 1190 mAnimationStartTime = System.currentTimeMillis(); 1191 } 1192 1193 private void setWallpaperOffsetSteps() { 1194 // Set wallpaper offset steps (1 / (number of screens - 1)) 1195 mWallpaperManager.setWallpaperOffsetSteps(1.0f / (getChildCount() - 1), 1.0f); 1196 } 1197 1198 public void setFinalX(float x) { 1199 scheduleUpdate(); 1200 mFinalOffset = Math.max(0f, Math.min(x, 1.0f)); 1201 if (getNumScreensExcludingExtraEmptyScreenAndLeftmost() != mNumScreens) { 1202 if (mNumScreens > 0) { 1203 // Don't animate if we're going from 0 screens 1204 animateToFinal(); 1205 } 1206 mNumScreens = getNumScreensExcludingExtraEmptyScreenAndLeftmost(); 1207 } 1208 } 1209 1210 private void scheduleUpdate() { 1211 if (!mWaitingForUpdate) { 1212 mChoreographer.postFrameCallback(this); 1213 mWaitingForUpdate = true; 1214 } 1215 } 1216 1217 public void jumpToFinal() { 1218 mCurrentOffset = mFinalOffset; 1219 } 1220 } 1221 1222 @Override 1223 public void computeScroll() { 1224 super.computeScroll(); 1225 mWallpaperOffset.syncWithScroll(); 1226 } 1227 1228 void showOutlines() { 1229 if (!isSmall() && !mIsSwitchingState) { 1230 if (mChildrenOutlineFadeOutAnimation != null) mChildrenOutlineFadeOutAnimation.cancel(); 1231 if (mChildrenOutlineFadeInAnimation != null) mChildrenOutlineFadeInAnimation.cancel(); 1232 mChildrenOutlineFadeInAnimation = LauncherAnimUtils.ofFloat(this, "childrenOutlineAlpha", 1.0f); 1233 mChildrenOutlineFadeInAnimation.setDuration(CHILDREN_OUTLINE_FADE_IN_DURATION); 1234 mChildrenOutlineFadeInAnimation.start(); 1235 } 1236 } 1237 1238 void hideOutlines() { 1239 if (!isSmall() && !mIsSwitchingState) { 1240 if (mChildrenOutlineFadeInAnimation != null) mChildrenOutlineFadeInAnimation.cancel(); 1241 if (mChildrenOutlineFadeOutAnimation != null) mChildrenOutlineFadeOutAnimation.cancel(); 1242 mChildrenOutlineFadeOutAnimation = LauncherAnimUtils.ofFloat(this, "childrenOutlineAlpha", 0.0f); 1243 mChildrenOutlineFadeOutAnimation.setDuration(CHILDREN_OUTLINE_FADE_OUT_DURATION); 1244 mChildrenOutlineFadeOutAnimation.setStartDelay(CHILDREN_OUTLINE_FADE_OUT_DELAY); 1245 mChildrenOutlineFadeOutAnimation.start(); 1246 } 1247 } 1248 1249 public void showOutlinesTemporarily() { 1250 if (!mIsPageMoving && !isTouchActive()) { 1251 snapToPage(mCurrentPage); 1252 } 1253 } 1254 1255 public void setChildrenOutlineAlpha(float alpha) { 1256 mChildrenOutlineAlpha = alpha; 1257 for (int i = 0; i < getChildCount(); i++) { 1258 CellLayout cl = (CellLayout) getChildAt(i); 1259 cl.setBackgroundAlpha(alpha); 1260 } 1261 } 1262 1263 public float getChildrenOutlineAlpha() { 1264 return mChildrenOutlineAlpha; 1265 } 1266 1267 void disableBackground() { 1268 mDrawBackground = false; 1269 } 1270 void enableBackground() { 1271 mDrawBackground = true; 1272 } 1273 1274 private void animateBackgroundGradient(float finalAlpha, boolean animated) { 1275 if (mBackground == null) return; 1276 if (mBackgroundFadeInAnimation != null) { 1277 mBackgroundFadeInAnimation.cancel(); 1278 mBackgroundFadeInAnimation = null; 1279 } 1280 if (mBackgroundFadeOutAnimation != null) { 1281 mBackgroundFadeOutAnimation.cancel(); 1282 mBackgroundFadeOutAnimation = null; 1283 } 1284 float startAlpha = getBackgroundAlpha(); 1285 if (finalAlpha != startAlpha) { 1286 if (animated) { 1287 mBackgroundFadeOutAnimation = 1288 LauncherAnimUtils.ofFloat(this, startAlpha, finalAlpha); 1289 mBackgroundFadeOutAnimation.addUpdateListener(new AnimatorUpdateListener() { 1290 public void onAnimationUpdate(ValueAnimator animation) { 1291 setBackgroundAlpha(((Float) animation.getAnimatedValue()).floatValue()); 1292 } 1293 }); 1294 mBackgroundFadeOutAnimation.setInterpolator(new DecelerateInterpolator(1.5f)); 1295 mBackgroundFadeOutAnimation.setDuration(BACKGROUND_FADE_OUT_DURATION); 1296 mBackgroundFadeOutAnimation.start(); 1297 } else { 1298 setBackgroundAlpha(finalAlpha); 1299 } 1300 } 1301 } 1302 1303 public void setBackgroundAlpha(float alpha) { 1304 if (alpha != mBackgroundAlpha) { 1305 mBackgroundAlpha = alpha; 1306 invalidate(); 1307 } 1308 } 1309 1310 public float getBackgroundAlpha() { 1311 return mBackgroundAlpha; 1312 } 1313 1314 float backgroundAlphaInterpolator(float r) { 1315 float pivotA = 0.1f; 1316 float pivotB = 0.4f; 1317 if (r < pivotA) { 1318 return 0; 1319 } else if (r > pivotB) { 1320 return 1.0f; 1321 } else { 1322 return (r - pivotA)/(pivotB - pivotA); 1323 } 1324 } 1325 1326 private void updatePageAlphaValues(int screenCenter) { 1327 boolean isInOverscroll = mOverScrollX < 0 || mOverScrollX > mMaxScrollX; 1328 if (mWorkspaceFadeInAdjacentScreens && 1329 mState == State.NORMAL && 1330 !mIsSwitchingState && 1331 !isInOverscroll) { 1332 for (int i = 0; i < getChildCount(); i++) { 1333 CellLayout child = (CellLayout) getChildAt(i); 1334 if (child != null) { 1335 float scrollProgress = getScrollProgress(screenCenter, child, i); 1336 float alpha = 1 - Math.abs(scrollProgress); 1337 child.getShortcutsAndWidgets().setAlpha(alpha); 1338 if (!mIsDragOccuring) { 1339 child.setBackgroundAlphaMultiplier( 1340 backgroundAlphaInterpolator(Math.abs(scrollProgress))); 1341 } else { 1342 child.setBackgroundAlphaMultiplier(1f); 1343 } 1344 } 1345 } 1346 } 1347 } 1348 1349 private void setChildrenBackgroundAlphaMultipliers(float a) { 1350 for (int i = 0; i < getChildCount(); i++) { 1351 CellLayout child = (CellLayout) getChildAt(i); 1352 child.setBackgroundAlphaMultiplier(a); 1353 } 1354 } 1355 1356 public boolean hasCustomContent() { 1357 return (mScreenOrder.size() > 0 && mScreenOrder.get(0) == CUSTOM_CONTENT_SCREEN_ID); 1358 } 1359 1360 public boolean isOnOrMovingToCustomContent() { 1361 return hasCustomContent() && getNextPage() == 0; 1362 } 1363 1364 private void updateStateForCustomContent(int screenCenter) { 1365 float translationX = 0; 1366 float progress = 0; 1367 if (hasCustomContent()) { 1368 int index = mScreenOrder.indexOf(CUSTOM_CONTENT_SCREEN_ID); 1369 int scrollDelta = getScrollForPage(index + 1) - getScrollX(); 1370 translationX = scrollDelta; 1371 progress = (1.0f * scrollDelta) / 1372 (getScrollForPage(index + 1) - getScrollForPage(index)); 1373 1374 if (isLayoutRtl()) { 1375 translationX = Math.min(0, translationX); 1376 } else { 1377 translationX = Math.max(0, translationX); 1378 } 1379 progress = Math.max(0, progress); 1380 } 1381 1382 if (Float.compare(progress, mLastCustomContentScrollProgress) == 0) return; 1383 mLastCustomContentScrollProgress = progress; 1384 1385 setBackgroundAlpha(progress * 0.8f); 1386 1387 if (mLauncher.getHotseat() != null) { 1388 mLauncher.getHotseat().setTranslationX(translationX); 1389 } 1390 1391 if (getPageIndicator() != null) { 1392 getPageIndicator().setTranslationX(translationX); 1393 } 1394 1395 if (mCustomContentCallbacks != null) { 1396 mCustomContentCallbacks.onScrollProgressChanged(progress); 1397 } 1398 } 1399 1400 @Override 1401 protected void screenScrolled(int screenCenter) { 1402 final boolean isRtl = isLayoutRtl(); 1403 super.screenScrolled(screenCenter); 1404 1405 updatePageAlphaValues(screenCenter); 1406 updateStateForCustomContent(screenCenter); 1407 enableHwLayersOnVisiblePages(); 1408 1409 boolean shouldOverScroll = (mOverScrollX < 0 && (!hasCustomContent() || isLayoutRtl())) || 1410 (mOverScrollX > mMaxScrollX && (!hasCustomContent() || !isLayoutRtl())); 1411 1412 if (shouldOverScroll) { 1413 int index = 0; 1414 float pivotX = 0f; 1415 final float leftBiasedPivot = 0.25f; 1416 final float rightBiasedPivot = 0.75f; 1417 final int lowerIndex = 0; 1418 final int upperIndex = getChildCount() - 1; 1419 1420 final boolean isLeftPage = mOverScrollX < 0; 1421 index = (!isRtl && isLeftPage) || (isRtl && !isLeftPage) ? lowerIndex : upperIndex; 1422 pivotX = isLeftPage ? rightBiasedPivot : leftBiasedPivot; 1423 1424 CellLayout cl = (CellLayout) getChildAt(index); 1425 float scrollProgress = getScrollProgress(screenCenter, cl, index); 1426 cl.setOverScrollAmount(Math.abs(scrollProgress), isLeftPage); 1427 float rotation = -WORKSPACE_OVERSCROLL_ROTATION * scrollProgress; 1428 cl.setRotationY(rotation); 1429 1430 if (!mOverscrollTransformsSet || Float.compare(mLastOverscrollPivotX, pivotX) != 0) { 1431 mOverscrollTransformsSet = true; 1432 mLastOverscrollPivotX = pivotX; 1433 cl.setCameraDistance(mDensity * mCameraDistance); 1434 cl.setPivotX(cl.getMeasuredWidth() * pivotX); 1435 cl.setPivotY(cl.getMeasuredHeight() * 0.5f); 1436 cl.setOverscrollTransformsDirty(true); 1437 } 1438 } else { 1439 if (mOverscrollTransformsSet) { 1440 mOverscrollTransformsSet = false; 1441 ((CellLayout) getChildAt(0)).resetOverscrollTransforms(); 1442 ((CellLayout) getChildAt(getChildCount() - 1)).resetOverscrollTransforms(); 1443 } 1444 } 1445 } 1446 1447 @Override 1448 protected void overScroll(float amount) { 1449 acceleratedOverScroll(amount); 1450 } 1451 1452 protected void onAttachedToWindow() { 1453 super.onAttachedToWindow(); 1454 mWindowToken = getWindowToken(); 1455 computeScroll(); 1456 mDragController.setWindowToken(mWindowToken); 1457 } 1458 1459 protected void onDetachedFromWindow() { 1460 super.onDetachedFromWindow(); 1461 mWindowToken = null; 1462 } 1463 1464 @Override 1465 protected void onLayout(boolean changed, int left, int top, int right, int bottom) { 1466 if (mFirstLayout && mCurrentPage >= 0 && mCurrentPage < getChildCount()) { 1467 mWallpaperOffset.syncWithScroll(); 1468 mWallpaperOffset.jumpToFinal(); 1469 } 1470 super.onLayout(changed, left, top, right, bottom); 1471 } 1472 1473 @Override 1474 protected void onDraw(Canvas canvas) { 1475 // Draw the background gradient if necessary 1476 if (mBackground != null && mBackgroundAlpha > 0.0f && mDrawBackground) { 1477 int alpha = (int) (mBackgroundAlpha * 255); 1478 mBackground.setAlpha(alpha); 1479 mBackground.setBounds(getScrollX(), 0, getScrollX() + getMeasuredWidth(), 1480 getMeasuredHeight()); 1481 mBackground.draw(canvas); 1482 } 1483 1484 super.onDraw(canvas); 1485 1486 // Call back to LauncherModel to finish binding after the first draw 1487 post(mBindPages); 1488 } 1489 1490 boolean isDrawingBackgroundGradient() { 1491 return (mBackground != null && mBackgroundAlpha > 0.0f && mDrawBackground); 1492 } 1493 1494 @Override 1495 protected boolean onRequestFocusInDescendants(int direction, Rect previouslyFocusedRect) { 1496 if (!mLauncher.isAllAppsVisible()) { 1497 final Folder openFolder = getOpenFolder(); 1498 if (openFolder != null) { 1499 return openFolder.requestFocus(direction, previouslyFocusedRect); 1500 } else { 1501 return super.onRequestFocusInDescendants(direction, previouslyFocusedRect); 1502 } 1503 } 1504 return false; 1505 } 1506 1507 @Override 1508 public int getDescendantFocusability() { 1509 if (isSmall()) { 1510 return ViewGroup.FOCUS_BLOCK_DESCENDANTS; 1511 } 1512 return super.getDescendantFocusability(); 1513 } 1514 1515 @Override 1516 public void addFocusables(ArrayList<View> views, int direction, int focusableMode) { 1517 if (!mLauncher.isAllAppsVisible()) { 1518 final Folder openFolder = getOpenFolder(); 1519 if (openFolder != null) { 1520 openFolder.addFocusables(views, direction); 1521 } else { 1522 super.addFocusables(views, direction, focusableMode); 1523 } 1524 } 1525 } 1526 1527 public boolean isSmall() { 1528 return mState == State.SMALL || mState == State.SPRING_LOADED || mState == State.OVERVIEW; 1529 } 1530 1531 void enableChildrenCache(int fromPage, int toPage) { 1532 if (fromPage > toPage) { 1533 final int temp = fromPage; 1534 fromPage = toPage; 1535 toPage = temp; 1536 } 1537 1538 final int screenCount = getChildCount(); 1539 1540 fromPage = Math.max(fromPage, 0); 1541 toPage = Math.min(toPage, screenCount - 1); 1542 1543 for (int i = fromPage; i <= toPage; i++) { 1544 final CellLayout layout = (CellLayout) getChildAt(i); 1545 layout.setChildrenDrawnWithCacheEnabled(true); 1546 layout.setChildrenDrawingCacheEnabled(true); 1547 } 1548 } 1549 1550 void clearChildrenCache() { 1551 final int screenCount = getChildCount(); 1552 for (int i = 0; i < screenCount; i++) { 1553 final CellLayout layout = (CellLayout) getChildAt(i); 1554 layout.setChildrenDrawnWithCacheEnabled(false); 1555 // In software mode, we don't want the items to continue to be drawn into bitmaps 1556 if (!isHardwareAccelerated()) { 1557 layout.setChildrenDrawingCacheEnabled(false); 1558 } 1559 } 1560 } 1561 1562 private void updateChildrenLayersEnabled(boolean force) { 1563 boolean small = mState == State.SMALL || mState == State.OVERVIEW || mIsSwitchingState; 1564 boolean enableChildrenLayers = force || small || mAnimatingViewIntoPlace || isPageMoving(); 1565 1566 if (enableChildrenLayers != mChildrenLayersEnabled) { 1567 mChildrenLayersEnabled = enableChildrenLayers; 1568 if (mChildrenLayersEnabled) { 1569 enableHwLayersOnVisiblePages(); 1570 } else { 1571 for (int i = 0; i < getPageCount(); i++) { 1572 final CellLayout cl = (CellLayout) getChildAt(i); 1573 cl.disableHardwareLayers(); 1574 } 1575 } 1576 } 1577 } 1578 1579 private void enableHwLayersOnVisiblePages() { 1580 if (mChildrenLayersEnabled) { 1581 final int screenCount = getChildCount(); 1582 getVisiblePages(mTempVisiblePagesRange); 1583 int leftScreen = mTempVisiblePagesRange[0]; 1584 int rightScreen = mTempVisiblePagesRange[1]; 1585 if (leftScreen == rightScreen) { 1586 // make sure we're caching at least two pages always 1587 if (rightScreen < screenCount - 1) { 1588 rightScreen++; 1589 } else if (leftScreen > 0) { 1590 leftScreen--; 1591 } 1592 } 1593 for (int i = 0; i < screenCount; i++) { 1594 final CellLayout layout = (CellLayout) getPageAt(i); 1595 if (!(leftScreen <= i && i <= rightScreen && shouldDrawChild(layout))) { 1596 layout.disableHardwareLayers(); 1597 } 1598 } 1599 for (int i = 0; i < screenCount; i++) { 1600 final CellLayout layout = (CellLayout) getPageAt(i); 1601 if (leftScreen <= i && i <= rightScreen && shouldDrawChild(layout)) { 1602 layout.enableHardwareLayers(); 1603 } 1604 } 1605 } 1606 } 1607 1608 public void buildPageHardwareLayers() { 1609 // force layers to be enabled just for the call to buildLayer 1610 updateChildrenLayersEnabled(true); 1611 if (getWindowToken() != null) { 1612 final int childCount = getChildCount(); 1613 for (int i = 0; i < childCount; i++) { 1614 CellLayout cl = (CellLayout) getChildAt(i); 1615 cl.buildHardwareLayer(); 1616 } 1617 } 1618 updateChildrenLayersEnabled(false); 1619 } 1620 1621 protected void onWallpaperTap(MotionEvent ev) { 1622 final int[] position = mTempCell; 1623 getLocationOnScreen(position); 1624 1625 int pointerIndex = ev.getActionIndex(); 1626 position[0] += (int) ev.getX(pointerIndex); 1627 position[1] += (int) ev.getY(pointerIndex); 1628 1629 mWallpaperManager.sendWallpaperCommand(getWindowToken(), 1630 ev.getAction() == MotionEvent.ACTION_UP 1631 ? WallpaperManager.COMMAND_TAP : WallpaperManager.COMMAND_SECONDARY_TAP, 1632 position[0], position[1], 0, null); 1633 } 1634 1635 /* 1636 * This interpolator emulates the rate at which the perceived scale of an object changes 1637 * as its distance from a camera increases. When this interpolator is applied to a scale 1638 * animation on a view, it evokes the sense that the object is shrinking due to moving away 1639 * from the camera. 1640 */ 1641 static class ZInterpolator implements TimeInterpolator { 1642 private float focalLength; 1643 1644 public ZInterpolator(float foc) { 1645 focalLength = foc; 1646 } 1647 1648 public float getInterpolation(float input) { 1649 return (1.0f - focalLength / (focalLength + input)) / 1650 (1.0f - focalLength / (focalLength + 1.0f)); 1651 } 1652 } 1653 1654 /* 1655 * The exact reverse of ZInterpolator. 1656 */ 1657 static class InverseZInterpolator implements TimeInterpolator { 1658 private ZInterpolator zInterpolator; 1659 public InverseZInterpolator(float foc) { 1660 zInterpolator = new ZInterpolator(foc); 1661 } 1662 public float getInterpolation(float input) { 1663 return 1 - zInterpolator.getInterpolation(1 - input); 1664 } 1665 } 1666 1667 /* 1668 * ZInterpolator compounded with an ease-out. 1669 */ 1670 static class ZoomOutInterpolator implements TimeInterpolator { 1671 private final DecelerateInterpolator decelerate = new DecelerateInterpolator(0.75f); 1672 private final ZInterpolator zInterpolator = new ZInterpolator(0.13f); 1673 1674 public float getInterpolation(float input) { 1675 return decelerate.getInterpolation(zInterpolator.getInterpolation(input)); 1676 } 1677 } 1678 1679 /* 1680 * InvereZInterpolator compounded with an ease-out. 1681 */ 1682 static class ZoomInInterpolator implements TimeInterpolator { 1683 private final InverseZInterpolator inverseZInterpolator = new InverseZInterpolator(0.35f); 1684 private final DecelerateInterpolator decelerate = new DecelerateInterpolator(3.0f); 1685 1686 public float getInterpolation(float input) { 1687 return decelerate.getInterpolation(inverseZInterpolator.getInterpolation(input)); 1688 } 1689 } 1690 1691 private final ZoomInInterpolator mZoomInInterpolator = new ZoomInInterpolator(); 1692 1693 /* 1694 * 1695 * We call these methods (onDragStartedWithItemSpans/onDragStartedWithSize) whenever we 1696 * start a drag in Launcher, regardless of whether the drag has ever entered the Workspace 1697 * 1698 * These methods mark the appropriate pages as accepting drops (which alters their visual 1699 * appearance). 1700 * 1701 */ 1702 public void onDragStartedWithItem(View v) { 1703 final Canvas canvas = new Canvas(); 1704 1705 // The outline is used to visualize where the item will land if dropped 1706 mDragOutline = createDragOutline(v, canvas, DRAG_BITMAP_PADDING); 1707 } 1708 1709 public void onDragStartedWithItem(PendingAddItemInfo info, Bitmap b, boolean clipAlpha) { 1710 final Canvas canvas = new Canvas(); 1711 1712 int[] size = estimateItemSize(info.spanX, info.spanY, info, false); 1713 1714 // The outline is used to visualize where the item will land if dropped 1715 mDragOutline = createDragOutline(b, canvas, DRAG_BITMAP_PADDING, size[0], 1716 size[1], clipAlpha); 1717 } 1718 1719 public void exitWidgetResizeMode() { 1720 DragLayer dragLayer = mLauncher.getDragLayer(); 1721 dragLayer.clearAllResizeFrames(); 1722 } 1723 1724 private void initAnimationArrays() { 1725 final int childCount = getChildCount(); 1726 if (mLastChildCount == childCount) return; 1727 1728 mOldBackgroundAlphas = new float[childCount]; 1729 mOldAlphas = new float[childCount]; 1730 mNewBackgroundAlphas = new float[childCount]; 1731 mNewAlphas = new float[childCount]; 1732 } 1733 1734 Animator getChangeStateAnimation(final State state, boolean animated) { 1735 return getChangeStateAnimation(state, animated, 0, -1); 1736 } 1737 1738 @Override 1739 protected void getOverviewModePages(int[] range) { 1740 int count = mScreenOrder.size(); 1741 1742 int start = hasCustomContent() ? 1 : 0; 1743 int end = getChildCount() - 1; 1744 1745 range[0] = Math.max(0, Math.min(start, getChildCount() - 1)); 1746 range[1] = Math.max(0, end); 1747 } 1748 1749 protected void onStartReordering() { 1750 super.onStartReordering(); 1751 int count = getChildCount(); 1752 for (int i = 0; i < count; i++) { 1753 ((CellLayout) getChildAt(i)).setUseActiveGlowBackground(true); 1754 } 1755 showOutlines(); 1756 1757 // Reordering handles its own animations, disable the automatic ones. 1758 setLayoutTransition(null); 1759 } 1760 1761 protected void onEndReordering() { 1762 super.onEndReordering(); 1763 int count = getChildCount(); 1764 for (int i = 0; i < count; i++) { 1765 ((CellLayout) getChildAt(i)).setUseActiveGlowBackground(false); 1766 } 1767 hideOutlines(); 1768 1769 mScreenOrder.clear(); 1770 for (int i = 0; i < count; i++) { 1771 CellLayout cl = ((CellLayout) getChildAt(i)); 1772 mScreenOrder.add(getIdForScreen(cl)); 1773 } 1774 1775 mLauncher.getModel().updateWorkspaceScreenOrder(mLauncher, mScreenOrder); 1776 1777 // Re-enable auto layout transitions for page deletion. 1778 setLayoutTransition(mLayoutTransition); 1779 } 1780 1781 public boolean isInOverviewMode() { 1782 return mState == State.OVERVIEW; 1783 } 1784 1785 public boolean enterOverviewMode() { 1786 if (mTouchState != TOUCH_STATE_REST) { 1787 return false; 1788 } 1789 mLauncher.onInteractionBegin(); 1790 enableOverviewMode(true, -1, true); 1791 return true; 1792 } 1793 1794 public void exitOverviewMode(boolean animated) { 1795 exitOverviewMode(-1, animated); 1796 mLauncher.onInteractionEnd(); 1797 } 1798 1799 public void exitOverviewMode(int snapPage, boolean animated) { 1800 enableOverviewMode(false, snapPage, animated); 1801 mLauncher.onInteractionEnd(); 1802 } 1803 1804 private void enableOverviewMode(boolean enable, int snapPage, boolean animated) { 1805 State finalState = Workspace.State.OVERVIEW; 1806 if (!enable) { 1807 finalState = Workspace.State.NORMAL; 1808 } 1809 1810 Animator workspaceAnim = getChangeStateAnimation(finalState, animated, 0, snapPage); 1811 if (workspaceAnim != null) { 1812 onTransitionPrepare(); 1813 workspaceAnim.addListener(new AnimatorListenerAdapter() { 1814 @Override 1815 public void onAnimationEnd(Animator arg0) { 1816 onTransitionEnd(); 1817 } 1818 }); 1819 workspaceAnim.start(); 1820 } 1821 } 1822 1823 int getOverviewModeTranslationY() { 1824 int childHeight = getNormalChildHeight(); 1825 int viewPortHeight = getViewportHeight(); 1826 int scaledChildHeight = (int) (mOverviewModeShrinkFactor * childHeight); 1827 1828 int offset = (viewPortHeight - scaledChildHeight) / 2; 1829 int offsetDelta = mOverviewModePageOffset - offset + mInsets.top; 1830 1831 return offsetDelta; 1832 } 1833 1834 Animator getChangeStateAnimation(final State state, boolean animated, int delay, int snapPage) { 1835 if (mState == state) { 1836 return null; 1837 } 1838 1839 // Initialize animation arrays for the first time if necessary 1840 initAnimationArrays(); 1841 1842 AnimatorSet anim = animated ? LauncherAnimUtils.createAnimatorSet() : null; 1843 1844 final State oldState = mState; 1845 final boolean oldStateIsNormal = (oldState == State.NORMAL); 1846 final boolean oldStateIsSpringLoaded = (oldState == State.SPRING_LOADED); 1847 final boolean oldStateIsSmall = (oldState == State.SMALL); 1848 final boolean oldStateIsOverview = (oldState == State.OVERVIEW); 1849 mState = state; 1850 final boolean stateIsNormal = (state == State.NORMAL); 1851 final boolean stateIsSpringLoaded = (state == State.SPRING_LOADED); 1852 final boolean stateIsSmall = (state == State.SMALL); 1853 final boolean stateIsOverview = (state == State.OVERVIEW); 1854 float finalBackgroundAlpha = (stateIsSpringLoaded || stateIsOverview) ? 1.0f : 0f; 1855 float finalHotseatAndPageIndicatorAlpha = (stateIsOverview || stateIsSmall) ? 0f : 1f; 1856 float finalOverviewPanelAlpha = stateIsOverview ? 1f : 0f; 1857 float finalSearchBarAlpha = !stateIsNormal ? 0f : 1f; 1858 float finalWorkspaceTranslationY = stateIsOverview ? getOverviewModeTranslationY() : 0; 1859 1860 boolean zoomIn = true; 1861 mNewScale = 1.0f; 1862 1863 if (oldStateIsOverview) { 1864 disableFreeScroll(snapPage); 1865 } else if (stateIsOverview) { 1866 enableFreeScroll(); 1867 } 1868 1869 if (state != State.NORMAL) { 1870 if (stateIsSpringLoaded) { 1871 mNewScale = mSpringLoadedShrinkFactor; 1872 } else if (stateIsOverview) { 1873 mNewScale = mOverviewModeShrinkFactor; 1874 } else if (stateIsSmall){ 1875 mNewScale = mOverviewModeShrinkFactor - 0.3f; 1876 } 1877 if (oldStateIsNormal && stateIsSmall) { 1878 zoomIn = false; 1879 updateChildrenLayersEnabled(false); 1880 } 1881 } 1882 final int duration = zoomIn ? 1883 getResources().getInteger(R.integer.config_workspaceUnshrinkTime) : 1884 getResources().getInteger(R.integer.config_appsCustomizeWorkspaceShrinkTime); 1885 for (int i = 0; i < getChildCount(); i++) { 1886 final CellLayout cl = (CellLayout) getChildAt(i); 1887 float finalAlpha = (!mWorkspaceFadeInAdjacentScreens || 1888 (i == mCurrentPage)) && !stateIsSmall ? 1f : 0f; 1889 float initialAlpha = cl.getShortcutsAndWidgets().getAlpha(); 1890 1891 mOldAlphas[i] = initialAlpha; 1892 mNewAlphas[i] = finalAlpha; 1893 if (animated) { 1894 mOldBackgroundAlphas[i] = cl.getBackgroundAlpha(); 1895 mNewBackgroundAlphas[i] = finalBackgroundAlpha; 1896 } else { 1897 cl.setBackgroundAlpha(finalBackgroundAlpha); 1898 cl.setShortcutAndWidgetAlpha(finalAlpha); 1899 } 1900 } 1901 1902 final View searchBar = mLauncher.getQsbBar(); 1903 final View overviewPanel = mLauncher.getOverviewPanel(); 1904 final View hotseat = mLauncher.getHotseat(); 1905 if (animated) { 1906 LauncherViewPropertyAnimator scale = new LauncherViewPropertyAnimator(this); 1907 scale.scaleX(mNewScale) 1908 .scaleY(mNewScale) 1909 .translationY(finalWorkspaceTranslationY) 1910 .setInterpolator(mZoomInInterpolator); 1911 anim.play(scale); 1912 for (int index = 0; index < getChildCount(); index++) { 1913 final int i = index; 1914 final CellLayout cl = (CellLayout) getChildAt(i); 1915 float currentAlpha = cl.getShortcutsAndWidgets().getAlpha(); 1916 if (mOldAlphas[i] == 0 && mNewAlphas[i] == 0) { 1917 cl.setBackgroundAlpha(mNewBackgroundAlphas[i]); 1918 cl.setShortcutAndWidgetAlpha(mNewAlphas[i]); 1919 } else { 1920 if (mOldAlphas[i] != mNewAlphas[i] || currentAlpha != mNewAlphas[i]) { 1921 LauncherViewPropertyAnimator alphaAnim = 1922 new LauncherViewPropertyAnimator(cl.getShortcutsAndWidgets()); 1923 alphaAnim.alpha(mNewAlphas[i]) 1924 .setDuration(duration) 1925 .setInterpolator(mZoomInInterpolator); 1926 anim.play(alphaAnim); 1927 } 1928 if (mOldBackgroundAlphas[i] != 0 || 1929 mNewBackgroundAlphas[i] != 0) { 1930 ValueAnimator bgAnim = 1931 LauncherAnimUtils.ofFloat(cl, 0f, 1f).setDuration(duration); 1932 bgAnim.setInterpolator(mZoomInInterpolator); 1933 bgAnim.addUpdateListener(new LauncherAnimatorUpdateListener() { 1934 public void onAnimationUpdate(float a, float b) { 1935 cl.setBackgroundAlpha( 1936 a * mOldBackgroundAlphas[i] + 1937 b * mNewBackgroundAlphas[i]); 1938 } 1939 }); 1940 anim.play(bgAnim); 1941 } 1942 } 1943 } 1944 ObjectAnimator pageIndicatorAlpha = null; 1945 if (getPageIndicator() != null) { 1946 pageIndicatorAlpha = ObjectAnimator.ofFloat(getPageIndicator(), "alpha", 1947 finalHotseatAndPageIndicatorAlpha); 1948 } 1949 ObjectAnimator hotseatAlpha = ObjectAnimator.ofFloat(hotseat, "alpha", 1950 finalHotseatAndPageIndicatorAlpha); 1951 ObjectAnimator searchBarAlpha = ObjectAnimator.ofFloat(searchBar, 1952 "alpha", finalSearchBarAlpha); 1953 ObjectAnimator overviewPanelAlpha = ObjectAnimator.ofFloat(overviewPanel, 1954 "alpha", finalOverviewPanelAlpha); 1955 1956 overviewPanelAlpha.addUpdateListener(new AlphaUpdateListener(overviewPanel)); 1957 hotseatAlpha.addUpdateListener(new AlphaUpdateListener(hotseat)); 1958 searchBarAlpha.addUpdateListener(new AlphaUpdateListener(searchBar)); 1959 1960 if (getPageIndicator() != null) { 1961 pageIndicatorAlpha.addUpdateListener(new AlphaUpdateListener(getPageIndicator())); 1962 } 1963 1964 1965 anim.play(overviewPanelAlpha); 1966 anim.play(hotseatAlpha); 1967 anim.play(searchBarAlpha); 1968 anim.play(pageIndicatorAlpha); 1969 anim.setStartDelay(delay); 1970 } else { 1971 overviewPanel.setAlpha(finalOverviewPanelAlpha); 1972 AlphaUpdateListener.updateVisibility(overviewPanel); 1973 hotseat.setAlpha(finalHotseatAndPageIndicatorAlpha); 1974 AlphaUpdateListener.updateVisibility(hotseat); 1975 if (getPageIndicator() != null) { 1976 getPageIndicator().setAlpha(finalHotseatAndPageIndicatorAlpha); 1977 AlphaUpdateListener.updateVisibility(getPageIndicator()); 1978 } 1979 searchBar.setAlpha(finalSearchBarAlpha); 1980 AlphaUpdateListener.updateVisibility(searchBar); 1981 updateCustomContentVisibility(); 1982 setScaleX(mNewScale); 1983 setScaleY(mNewScale); 1984 setTranslationY(finalWorkspaceTranslationY); 1985 } 1986 if (finalSearchBarAlpha == 0) { 1987 mLauncher.setVoiceButtonProxyVisible(false); 1988 } else { 1989 mLauncher.setVoiceButtonProxyVisible(true); 1990 } 1991 1992 if (stateIsSpringLoaded) { 1993 // Right now we're covered by Apps Customize 1994 // Show the background gradient immediately, so the gradient will 1995 // be showing once AppsCustomize disappears 1996 animateBackgroundGradient(getResources().getInteger( 1997 R.integer.config_appsCustomizeSpringLoadedBgAlpha) / 100f, false); 1998 } else if (stateIsOverview) { 1999 animateBackgroundGradient(getResources().getInteger( 2000 R.integer.config_appsCustomizeSpringLoadedBgAlpha) / 100f, true); 2001 } else { 2002 // Fade the background gradient away 2003 animateBackgroundGradient(0f, true); 2004 } 2005 return anim; 2006 } 2007 2008 static class AlphaUpdateListener implements AnimatorUpdateListener { 2009 View view; 2010 public AlphaUpdateListener(View v) { 2011 view = v; 2012 } 2013 2014 @Override 2015 public void onAnimationUpdate(ValueAnimator arg0) { 2016 updateVisibility(view); 2017 } 2018 2019 public static void updateVisibility(View view) { 2020 if (view.getAlpha() < ALPHA_CUTOFF_THRESHOLD && view.getVisibility() != INVISIBLE) { 2021 view.setVisibility(INVISIBLE); 2022 } else if (view.getAlpha() > ALPHA_CUTOFF_THRESHOLD 2023 && view.getVisibility() != VISIBLE) { 2024 view.setVisibility(VISIBLE); 2025 } 2026 } 2027 } 2028 2029 @Override 2030 public void onLauncherTransitionPrepare(Launcher l, boolean animated, boolean toWorkspace) { 2031 onTransitionPrepare(); 2032 } 2033 2034 @Override 2035 public void onLauncherTransitionStart(Launcher l, boolean animated, boolean toWorkspace) { 2036 } 2037 2038 @Override 2039 public void onLauncherTransitionStep(Launcher l, float t) { 2040 mTransitionProgress = t; 2041 } 2042 2043 @Override 2044 public void onLauncherTransitionEnd(Launcher l, boolean animated, boolean toWorkspace) { 2045 onTransitionEnd(); 2046 } 2047 2048 private void onTransitionPrepare() { 2049 mIsSwitchingState = true; 2050 updateChildrenLayersEnabled(false); 2051 hideCustomContentIfNecessary(); 2052 } 2053 2054 void updateCustomContentVisibility() { 2055 int visibility = mState == Workspace.State.NORMAL ? VISIBLE : INVISIBLE; 2056 if (hasCustomContent()) { 2057 mWorkspaceScreens.get(CUSTOM_CONTENT_SCREEN_ID).setVisibility(visibility); 2058 } 2059 } 2060 2061 void showCustomContentIfNecessary() { 2062 boolean show = mState == Workspace.State.NORMAL; 2063 if (show && hasCustomContent()) { 2064 mWorkspaceScreens.get(CUSTOM_CONTENT_SCREEN_ID).setVisibility(VISIBLE); 2065 } 2066 } 2067 2068 void hideCustomContentIfNecessary() { 2069 boolean hide = mState != Workspace.State.NORMAL; 2070 if (hide && hasCustomContent()) { 2071 mWorkspaceScreens.get(CUSTOM_CONTENT_SCREEN_ID).setVisibility(INVISIBLE); 2072 } 2073 } 2074 2075 private void onTransitionEnd() { 2076 mIsSwitchingState = false; 2077 updateChildrenLayersEnabled(false); 2078 // The code in getChangeStateAnimation to determine initialAlpha and finalAlpha will ensure 2079 // ensure that only the current page is visible during (and subsequently, after) the 2080 // transition animation. If fade adjacent pages is disabled, then re-enable the page 2081 // visibility after the transition animation. 2082 if (!mWorkspaceFadeInAdjacentScreens) { 2083 for (int i = 0; i < getChildCount(); i++) { 2084 final CellLayout cl = (CellLayout) getChildAt(i); 2085 cl.setShortcutAndWidgetAlpha(1f); 2086 } 2087 } 2088 showCustomContentIfNecessary(); 2089 } 2090 2091 @Override 2092 public View getContent() { 2093 return this; 2094 } 2095 2096 /** 2097 * Draw the View v into the given Canvas. 2098 * 2099 * @param v the view to draw 2100 * @param destCanvas the canvas to draw on 2101 * @param padding the horizontal and vertical padding to use when drawing 2102 */ 2103 private void drawDragView(View v, Canvas destCanvas, int padding, boolean pruneToDrawable) { 2104 final Rect clipRect = mTempRect; 2105 v.getDrawingRect(clipRect); 2106 2107 boolean textVisible = false; 2108 2109 destCanvas.save(); 2110 if (v instanceof TextView && pruneToDrawable) { 2111 Drawable d = ((TextView) v).getCompoundDrawables()[1]; 2112 clipRect.set(0, 0, d.getIntrinsicWidth() + padding, d.getIntrinsicHeight() + padding); 2113 destCanvas.translate(padding / 2, padding / 2); 2114 d.draw(destCanvas); 2115 } else { 2116 if (v instanceof FolderIcon) { 2117 // For FolderIcons the text can bleed into the icon area, and so we need to 2118 // hide the text completely (which can't be achieved by clipping). 2119 if (((FolderIcon) v).getTextVisible()) { 2120 ((FolderIcon) v).setTextVisible(false); 2121 textVisible = true; 2122 } 2123 } else if (v instanceof BubbleTextView) { 2124 final BubbleTextView tv = (BubbleTextView) v; 2125 clipRect.bottom = tv.getExtendedPaddingTop() - (int) BubbleTextView.PADDING_V + 2126 tv.getLayout().getLineTop(0); 2127 } else if (v instanceof TextView) { 2128 final TextView tv = (TextView) v; 2129 clipRect.bottom = tv.getExtendedPaddingTop() - tv.getCompoundDrawablePadding() + 2130 tv.getLayout().getLineTop(0); 2131 } 2132 destCanvas.translate(-v.getScrollX() + padding / 2, -v.getScrollY() + padding / 2); 2133 destCanvas.clipRect(clipRect, Op.REPLACE); 2134 v.draw(destCanvas); 2135 2136 // Restore text visibility of FolderIcon if necessary 2137 if (textVisible) { 2138 ((FolderIcon) v).setTextVisible(true); 2139 } 2140 } 2141 destCanvas.restore(); 2142 } 2143 2144 /** 2145 * Returns a new bitmap to show when the given View is being dragged around. 2146 * Responsibility for the bitmap is transferred to the caller. 2147 */ 2148 public Bitmap createDragBitmap(View v, Canvas canvas, int padding) { 2149 Bitmap b; 2150 2151 if (v instanceof TextView) { 2152 Drawable d = ((TextView) v).getCompoundDrawables()[1]; 2153 b = Bitmap.createBitmap(d.getIntrinsicWidth() + padding, 2154 d.getIntrinsicHeight() + padding, Bitmap.Config.ARGB_8888); 2155 } else { 2156 b = Bitmap.createBitmap( 2157 v.getWidth() + padding, v.getHeight() + padding, Bitmap.Config.ARGB_8888); 2158 } 2159 2160 canvas.setBitmap(b); 2161 drawDragView(v, canvas, padding, true); 2162 canvas.setBitmap(null); 2163 2164 return b; 2165 } 2166 2167 /** 2168 * Returns a new bitmap to be used as the object outline, e.g. to visualize the drop location. 2169 * Responsibility for the bitmap is transferred to the caller. 2170 */ 2171 private Bitmap createDragOutline(View v, Canvas canvas, int padding) { 2172 final int outlineColor = getResources().getColor(R.color.outline_color); 2173 final Bitmap b = Bitmap.createBitmap( 2174 v.getWidth() + padding, v.getHeight() + padding, Bitmap.Config.ARGB_8888); 2175 2176 canvas.setBitmap(b); 2177 drawDragView(v, canvas, padding, true); 2178 mOutlineHelper.applyMediumExpensiveOutlineWithBlur(b, canvas, outlineColor, outlineColor); 2179 canvas.setBitmap(null); 2180 return b; 2181 } 2182 2183 /** 2184 * Returns a new bitmap to be used as the object outline, e.g. to visualize the drop location. 2185 * Responsibility for the bitmap is transferred to the caller. 2186 */ 2187 private Bitmap createDragOutline(Bitmap orig, Canvas canvas, int padding, int w, int h, 2188 boolean clipAlpha) { 2189 final int outlineColor = getResources().getColor(R.color.outline_color); 2190 final Bitmap b = Bitmap.createBitmap(w, h, Bitmap.Config.ARGB_8888); 2191 canvas.setBitmap(b); 2192 2193 Rect src = new Rect(0, 0, orig.getWidth(), orig.getHeight()); 2194 float scaleFactor = Math.min((w - padding) / (float) orig.getWidth(), 2195 (h - padding) / (float) orig.getHeight()); 2196 int scaledWidth = (int) (scaleFactor * orig.getWidth()); 2197 int scaledHeight = (int) (scaleFactor * orig.getHeight()); 2198 Rect dst = new Rect(0, 0, scaledWidth, scaledHeight); 2199 2200 // center the image 2201 dst.offset((w - scaledWidth) / 2, (h - scaledHeight) / 2); 2202 2203 canvas.drawBitmap(orig, src, dst, null); 2204 mOutlineHelper.applyMediumExpensiveOutlineWithBlur(b, canvas, outlineColor, outlineColor, 2205 clipAlpha); 2206 canvas.setBitmap(null); 2207 2208 return b; 2209 } 2210 2211 void startDrag(CellLayout.CellInfo cellInfo) { 2212 View child = cellInfo.cell; 2213 2214 // Make sure the drag was started by a long press as opposed to a long click. 2215 if (!child.isInTouchMode()) { 2216 return; 2217 } 2218 2219 mDragInfo = cellInfo; 2220 child.setVisibility(INVISIBLE); 2221 CellLayout layout = (CellLayout) child.getParent().getParent(); 2222 layout.prepareChildForDrag(child); 2223 2224 child.clearFocus(); 2225 child.setPressed(false); 2226 2227 final Canvas canvas = new Canvas(); 2228 2229 // The outline is used to visualize where the item will land if dropped 2230 mDragOutline = createDragOutline(child, canvas, DRAG_BITMAP_PADDING); 2231 beginDragShared(child, this); 2232 } 2233 2234 public void beginDragShared(View child, DragSource source) { 2235 // The drag bitmap follows the touch point around on the screen 2236 final Bitmap b = createDragBitmap(child, new Canvas(), DRAG_BITMAP_PADDING); 2237 2238 final int bmpWidth = b.getWidth(); 2239 final int bmpHeight = b.getHeight(); 2240 2241 float scale = mLauncher.getDragLayer().getLocationInDragLayer(child, mTempXY); 2242 int dragLayerX = 2243 Math.round(mTempXY[0] - (bmpWidth - scale * child.getWidth()) / 2); 2244 int dragLayerY = 2245 Math.round(mTempXY[1] - (bmpHeight - scale * bmpHeight) / 2 2246 - DRAG_BITMAP_PADDING / 2); 2247 2248 LauncherAppState app = LauncherAppState.getInstance(); 2249 DeviceProfile grid = app.getDynamicGrid().getDeviceProfile(); 2250 Point dragVisualizeOffset = null; 2251 Rect dragRect = null; 2252 if (child instanceof BubbleTextView || child instanceof PagedViewIcon) { 2253 int iconSize = grid.iconSizePx; 2254 int top = child.getPaddingTop(); 2255 int left = (bmpWidth - iconSize) / 2; 2256 int right = left + iconSize; 2257 int bottom = top + iconSize; 2258 dragLayerY += top; 2259 // Note: The drag region is used to calculate drag layer offsets, but the 2260 // dragVisualizeOffset in addition to the dragRect (the size) to position the outline. 2261 dragVisualizeOffset = new Point(-DRAG_BITMAP_PADDING / 2, DRAG_BITMAP_PADDING / 2); 2262 dragRect = new Rect(left, top, right, bottom); 2263 } else if (child instanceof FolderIcon) { 2264 int previewSize = grid.folderIconSizePx; 2265 dragRect = new Rect(0, child.getPaddingTop(), child.getWidth(), previewSize); 2266 } 2267 2268 // Clear the pressed state if necessary 2269 if (child instanceof BubbleTextView) { 2270 BubbleTextView icon = (BubbleTextView) child; 2271 icon.clearPressedOrFocusedBackground(); 2272 } 2273 2274 mDragController.startDrag(b, dragLayerX, dragLayerY, source, child.getTag(), 2275 DragController.DRAG_ACTION_MOVE, dragVisualizeOffset, dragRect, scale); 2276 2277 if (child.getParent() instanceof ShortcutAndWidgetContainer) { 2278 mDragSourceInternal = (ShortcutAndWidgetContainer) child.getParent(); 2279 } 2280 2281 b.recycle(); 2282 } 2283 2284 void addApplicationShortcut(ShortcutInfo info, CellLayout target, long container, long screenId, 2285 int cellX, int cellY, boolean insertAtFirst, int intersectX, int intersectY) { 2286 View view = mLauncher.createShortcut(R.layout.application, target, (ShortcutInfo) info); 2287 2288 final int[] cellXY = new int[2]; 2289 target.findCellForSpanThatIntersects(cellXY, 1, 1, intersectX, intersectY); 2290 addInScreen(view, container, screenId, cellXY[0], cellXY[1], 1, 1, insertAtFirst); 2291 2292 LauncherModel.addOrMoveItemInDatabase(mLauncher, info, container, screenId, cellXY[0], 2293 cellXY[1]); 2294 } 2295 2296 public boolean transitionStateShouldAllowDrop() { 2297 return ((!isSwitchingState() || mTransitionProgress > 0.5f) && mState != State.SMALL); 2298 } 2299 2300 /** 2301 * {@inheritDoc} 2302 */ 2303 public boolean acceptDrop(DragObject d) { 2304 // If it's an external drop (e.g. from All Apps), check if it should be accepted 2305 CellLayout dropTargetLayout = mDropToLayout; 2306 if (d.dragSource != this) { 2307 // Don't accept the drop if we're not over a screen at time of drop 2308 if (dropTargetLayout == null) { 2309 return false; 2310 } 2311 if (!transitionStateShouldAllowDrop()) return false; 2312 2313 mDragViewVisualCenter = getDragViewVisualCenter(d.x, d.y, d.xOffset, d.yOffset, 2314 d.dragView, mDragViewVisualCenter); 2315 2316 // We want the point to be mapped to the dragTarget. 2317 if (mLauncher.isHotseatLayout(dropTargetLayout)) { 2318 mapPointFromSelfToHotseatLayout(mLauncher.getHotseat(), mDragViewVisualCenter); 2319 } else { 2320 mapPointFromSelfToChild(dropTargetLayout, mDragViewVisualCenter, null); 2321 } 2322 2323 int spanX = 1; 2324 int spanY = 1; 2325 if (mDragInfo != null) { 2326 final CellLayout.CellInfo dragCellInfo = mDragInfo; 2327 spanX = dragCellInfo.spanX; 2328 spanY = dragCellInfo.spanY; 2329 } else { 2330 final ItemInfo dragInfo = (ItemInfo) d.dragInfo; 2331 spanX = dragInfo.spanX; 2332 spanY = dragInfo.spanY; 2333 } 2334 2335 int minSpanX = spanX; 2336 int minSpanY = spanY; 2337 if (d.dragInfo instanceof PendingAddWidgetInfo) { 2338 minSpanX = ((PendingAddWidgetInfo) d.dragInfo).minSpanX; 2339 minSpanY = ((PendingAddWidgetInfo) d.dragInfo).minSpanY; 2340 } 2341 2342 mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], 2343 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, dropTargetLayout, 2344 mTargetCell); 2345 float distance = dropTargetLayout.getDistanceFromCell(mDragViewVisualCenter[0], 2346 mDragViewVisualCenter[1], mTargetCell); 2347 if (willCreateUserFolder((ItemInfo) d.dragInfo, dropTargetLayout, 2348 mTargetCell, distance, true)) { 2349 return true; 2350 } 2351 if (willAddToExistingUserFolder((ItemInfo) d.dragInfo, dropTargetLayout, 2352 mTargetCell, distance)) { 2353 return true; 2354 } 2355 2356 int[] resultSpan = new int[2]; 2357 mTargetCell = dropTargetLayout.createArea((int) mDragViewVisualCenter[0], 2358 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, spanX, spanY, 2359 null, mTargetCell, resultSpan, CellLayout.MODE_ACCEPT_DROP); 2360 boolean foundCell = mTargetCell[0] >= 0 && mTargetCell[1] >= 0; 2361 2362 // Don't accept the drop if there's no room for the item 2363 if (!foundCell) { 2364 // Don't show the message if we are dropping on the AllApps button and the hotseat 2365 // is full 2366 boolean isHotseat = mLauncher.isHotseatLayout(dropTargetLayout); 2367 if (mTargetCell != null && isHotseat) { 2368 Hotseat hotseat = mLauncher.getHotseat(); 2369 if (hotseat.isAllAppsButtonRank( 2370 hotseat.getOrderInHotseat(mTargetCell[0], mTargetCell[1]))) { 2371 return false; 2372 } 2373 } 2374 2375 mLauncher.showOutOfSpaceMessage(isHotseat); 2376 return false; 2377 } 2378 } 2379 2380 long screenId = getIdForScreen(dropTargetLayout); 2381 if (screenId == EXTRA_EMPTY_SCREEN_ID) { 2382 commitExtraEmptyScreen(); 2383 } 2384 2385 return true; 2386 } 2387 2388 boolean willCreateUserFolder(ItemInfo info, CellLayout target, int[] targetCell, float 2389 distance, boolean considerTimeout) { 2390 if (distance > mMaxDistanceForFolderCreation) return false; 2391 View dropOverView = target.getChildAt(targetCell[0], targetCell[1]); 2392 2393 if (dropOverView != null) { 2394 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) dropOverView.getLayoutParams(); 2395 if (lp.useTmpCoords && (lp.tmpCellX != lp.cellX || lp.tmpCellY != lp.tmpCellY)) { 2396 return false; 2397 } 2398 } 2399 2400 boolean hasntMoved = false; 2401 if (mDragInfo != null) { 2402 hasntMoved = dropOverView == mDragInfo.cell; 2403 } 2404 2405 if (dropOverView == null || hasntMoved || (considerTimeout && !mCreateUserFolderOnDrop)) { 2406 return false; 2407 } 2408 2409 boolean aboveShortcut = (dropOverView.getTag() instanceof ShortcutInfo); 2410 boolean willBecomeShortcut = 2411 (info.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPLICATION || 2412 info.itemType == LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT); 2413 2414 return (aboveShortcut && willBecomeShortcut); 2415 } 2416 2417 boolean willAddToExistingUserFolder(Object dragInfo, CellLayout target, int[] targetCell, 2418 float distance) { 2419 if (distance > mMaxDistanceForFolderCreation) return false; 2420 View dropOverView = target.getChildAt(targetCell[0], targetCell[1]); 2421 2422 if (dropOverView != null) { 2423 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) dropOverView.getLayoutParams(); 2424 if (lp.useTmpCoords && (lp.tmpCellX != lp.cellX || lp.tmpCellY != lp.tmpCellY)) { 2425 return false; 2426 } 2427 } 2428 2429 if (dropOverView instanceof FolderIcon) { 2430 FolderIcon fi = (FolderIcon) dropOverView; 2431 if (fi.acceptDrop(dragInfo)) { 2432 return true; 2433 } 2434 } 2435 return false; 2436 } 2437 2438 boolean createUserFolderIfNecessary(View newView, long container, CellLayout target, 2439 int[] targetCell, float distance, boolean external, DragView dragView, 2440 Runnable postAnimationRunnable) { 2441 if (distance > mMaxDistanceForFolderCreation) return false; 2442 View v = target.getChildAt(targetCell[0], targetCell[1]); 2443 2444 boolean hasntMoved = false; 2445 if (mDragInfo != null) { 2446 CellLayout cellParent = getParentCellLayoutForView(mDragInfo.cell); 2447 hasntMoved = (mDragInfo.cellX == targetCell[0] && 2448 mDragInfo.cellY == targetCell[1]) && (cellParent == target); 2449 } 2450 2451 if (v == null || hasntMoved || !mCreateUserFolderOnDrop) return false; 2452 mCreateUserFolderOnDrop = false; 2453 final long screenId = (targetCell == null) ? mDragInfo.screenId : getIdForScreen(target); 2454 2455 boolean aboveShortcut = (v.getTag() instanceof ShortcutInfo); 2456 boolean willBecomeShortcut = (newView.getTag() instanceof ShortcutInfo); 2457 2458 if (aboveShortcut && willBecomeShortcut) { 2459 ShortcutInfo sourceInfo = (ShortcutInfo) newView.getTag(); 2460 ShortcutInfo destInfo = (ShortcutInfo) v.getTag(); 2461 // if the drag started here, we need to remove it from the workspace 2462 if (!external) { 2463 getParentCellLayoutForView(mDragInfo.cell).removeView(mDragInfo.cell); 2464 } 2465 2466 Rect folderLocation = new Rect(); 2467 float scale = mLauncher.getDragLayer().getDescendantRectRelativeToSelf(v, folderLocation); 2468 target.removeView(v); 2469 2470 FolderIcon fi = 2471 mLauncher.addFolder(target, container, screenId, targetCell[0], targetCell[1]); 2472 destInfo.cellX = -1; 2473 destInfo.cellY = -1; 2474 sourceInfo.cellX = -1; 2475 sourceInfo.cellY = -1; 2476 2477 // If the dragView is null, we can't animate 2478 boolean animate = dragView != null; 2479 if (animate) { 2480 fi.performCreateAnimation(destInfo, v, sourceInfo, dragView, folderLocation, scale, 2481 postAnimationRunnable); 2482 } else { 2483 fi.addItem(destInfo); 2484 fi.addItem(sourceInfo); 2485 } 2486 return true; 2487 } 2488 return false; 2489 } 2490 2491 boolean addToExistingFolderIfNecessary(View newView, CellLayout target, int[] targetCell, 2492 float distance, DragObject d, boolean external) { 2493 if (distance > mMaxDistanceForFolderCreation) return false; 2494 2495 View dropOverView = target.getChildAt(targetCell[0], targetCell[1]); 2496 if (!mAddToExistingFolderOnDrop) return false; 2497 mAddToExistingFolderOnDrop = false; 2498 2499 if (dropOverView instanceof FolderIcon) { 2500 FolderIcon fi = (FolderIcon) dropOverView; 2501 if (fi.acceptDrop(d.dragInfo)) { 2502 fi.onDrop(d); 2503 2504 // if the drag started here, we need to remove it from the workspace 2505 if (!external) { 2506 getParentCellLayoutForView(mDragInfo.cell).removeView(mDragInfo.cell); 2507 } 2508 return true; 2509 } 2510 } 2511 return false; 2512 } 2513 2514 public void onDrop(final DragObject d) { 2515 mDragViewVisualCenter = getDragViewVisualCenter(d.x, d.y, d.xOffset, d.yOffset, d.dragView, 2516 mDragViewVisualCenter); 2517 2518 CellLayout dropTargetLayout = mDropToLayout; 2519 2520 // We want the point to be mapped to the dragTarget. 2521 if (dropTargetLayout != null) { 2522 if (mLauncher.isHotseatLayout(dropTargetLayout)) { 2523 mapPointFromSelfToHotseatLayout(mLauncher.getHotseat(), mDragViewVisualCenter); 2524 } else { 2525 mapPointFromSelfToChild(dropTargetLayout, mDragViewVisualCenter, null); 2526 } 2527 } 2528 2529 int snapScreen = -1; 2530 boolean resizeOnDrop = false; 2531 if (d.dragSource != this) { 2532 final int[] touchXY = new int[] { (int) mDragViewVisualCenter[0], 2533 (int) mDragViewVisualCenter[1] }; 2534 onDropExternal(touchXY, d.dragInfo, dropTargetLayout, false, d); 2535 } else if (mDragInfo != null) { 2536 final View cell = mDragInfo.cell; 2537 2538 Runnable resizeRunnable = null; 2539 if (dropTargetLayout != null && !d.cancelled) { 2540 // Move internally 2541 boolean hasMovedLayouts = (getParentCellLayoutForView(cell) != dropTargetLayout); 2542 boolean hasMovedIntoHotseat = mLauncher.isHotseatLayout(dropTargetLayout); 2543 long container = hasMovedIntoHotseat ? 2544 LauncherSettings.Favorites.CONTAINER_HOTSEAT : 2545 LauncherSettings.Favorites.CONTAINER_DESKTOP; 2546 long screenId = (mTargetCell[0] < 0) ? 2547 mDragInfo.screenId : getIdForScreen(dropTargetLayout); 2548 int spanX = mDragInfo != null ? mDragInfo.spanX : 1; 2549 int spanY = mDragInfo != null ? mDragInfo.spanY : 1; 2550 // First we find the cell nearest to point at which the item is 2551 // dropped, without any consideration to whether there is an item there. 2552 2553 mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], (int) 2554 mDragViewVisualCenter[1], spanX, spanY, dropTargetLayout, mTargetCell); 2555 float distance = dropTargetLayout.getDistanceFromCell(mDragViewVisualCenter[0], 2556 mDragViewVisualCenter[1], mTargetCell); 2557 2558 // If the item being dropped is a shortcut and the nearest drop 2559 // cell also contains a shortcut, then create a folder with the two shortcuts. 2560 if (!mInScrollArea && createUserFolderIfNecessary(cell, container, 2561 dropTargetLayout, mTargetCell, distance, false, d.dragView, null)) { 2562 stripEmptyScreens(); 2563 return; 2564 } 2565 2566 if (addToExistingFolderIfNecessary(cell, dropTargetLayout, mTargetCell, 2567 distance, d, false)) { 2568 stripEmptyScreens(); 2569 return; 2570 } 2571 2572 // Aside from the special case where we're dropping a shortcut onto a shortcut, 2573 // we need to find the nearest cell location that is vacant 2574 ItemInfo item = (ItemInfo) d.dragInfo; 2575 int minSpanX = item.spanX; 2576 int minSpanY = item.spanY; 2577 if (item.minSpanX > 0 && item.minSpanY > 0) { 2578 minSpanX = item.minSpanX; 2579 minSpanY = item.minSpanY; 2580 } 2581 2582 int[] resultSpan = new int[2]; 2583 mTargetCell = dropTargetLayout.createArea((int) mDragViewVisualCenter[0], 2584 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, spanX, spanY, cell, 2585 mTargetCell, resultSpan, CellLayout.MODE_ON_DROP); 2586 2587 boolean foundCell = mTargetCell[0] >= 0 && mTargetCell[1] >= 0; 2588 2589 // if the widget resizes on drop 2590 if (foundCell && (cell instanceof AppWidgetHostView) && 2591 (resultSpan[0] != item.spanX || resultSpan[1] != item.spanY)) { 2592 resizeOnDrop = true; 2593 item.spanX = resultSpan[0]; 2594 item.spanY = resultSpan[1]; 2595 AppWidgetHostView awhv = (AppWidgetHostView) cell; 2596 AppWidgetResizeFrame.updateWidgetSizeRanges(awhv, mLauncher, resultSpan[0], 2597 resultSpan[1]); 2598 } 2599 2600 if (getScreenIdForPageIndex(mCurrentPage) != screenId && !hasMovedIntoHotseat) { 2601 snapScreen = getPageIndexForScreenId(screenId); 2602 snapToPage(snapScreen); 2603 } 2604 2605 if (foundCell) { 2606 final ItemInfo info = (ItemInfo) cell.getTag(); 2607 if (hasMovedLayouts) { 2608 // Reparent the view 2609 getParentCellLayoutForView(cell).removeView(cell); 2610 addInScreen(cell, container, screenId, mTargetCell[0], mTargetCell[1], 2611 info.spanX, info.spanY); 2612 } 2613 2614 // update the item's position after drop 2615 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) cell.getLayoutParams(); 2616 lp.cellX = lp.tmpCellX = mTargetCell[0]; 2617 lp.cellY = lp.tmpCellY = mTargetCell[1]; 2618 lp.cellHSpan = item.spanX; 2619 lp.cellVSpan = item.spanY; 2620 lp.isLockedToGrid = true; 2621 cell.setId(LauncherModel.getCellLayoutChildId(container, mDragInfo.screenId, 2622 mTargetCell[0], mTargetCell[1], mDragInfo.spanX, mDragInfo.spanY)); 2623 2624 if (container != LauncherSettings.Favorites.CONTAINER_HOTSEAT && 2625 cell instanceof LauncherAppWidgetHostView) { 2626 final CellLayout cellLayout = dropTargetLayout; 2627 // We post this call so that the widget has a chance to be placed 2628 // in its final location 2629 2630 final LauncherAppWidgetHostView hostView = (LauncherAppWidgetHostView) cell; 2631 AppWidgetProviderInfo pinfo = hostView.getAppWidgetInfo(); 2632 if (pinfo != null && 2633 pinfo.resizeMode != AppWidgetProviderInfo.RESIZE_NONE) { 2634 final Runnable addResizeFrame = new Runnable() { 2635 public void run() { 2636 DragLayer dragLayer = mLauncher.getDragLayer(); 2637 dragLayer.addResizeFrame(info, hostView, cellLayout); 2638 } 2639 }; 2640 resizeRunnable = (new Runnable() { 2641 public void run() { 2642 if (!isPageMoving()) { 2643 addResizeFrame.run(); 2644 } else { 2645 mDelayedResizeRunnable = addResizeFrame; 2646 } 2647 } 2648 }); 2649 } 2650 } 2651 2652 LauncherModel.modifyItemInDatabase(mLauncher, info, container, screenId, lp.cellX, 2653 lp.cellY, item.spanX, item.spanY); 2654 } else { 2655 // If we can't find a drop location, we return the item to its original position 2656 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) cell.getLayoutParams(); 2657 mTargetCell[0] = lp.cellX; 2658 mTargetCell[1] = lp.cellY; 2659 CellLayout layout = (CellLayout) cell.getParent().getParent(); 2660 layout.markCellsAsOccupiedForView(cell); 2661 } 2662 } 2663 2664 final CellLayout parent = (CellLayout) cell.getParent().getParent(); 2665 final Runnable finalResizeRunnable = resizeRunnable; 2666 // Prepare it to be animated into its new position 2667 // This must be called after the view has been re-parented 2668 final Runnable onCompleteRunnable = new Runnable() { 2669 @Override 2670 public void run() { 2671 mAnimatingViewIntoPlace = false; 2672 updateChildrenLayersEnabled(false); 2673 if (finalResizeRunnable != null) { 2674 finalResizeRunnable.run(); 2675 } 2676 stripEmptyScreens(); 2677 } 2678 }; 2679 mAnimatingViewIntoPlace = true; 2680 if (d.dragView.hasDrawn()) { 2681 final ItemInfo info = (ItemInfo) cell.getTag(); 2682 if (info.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET) { 2683 int animationType = resizeOnDrop ? ANIMATE_INTO_POSITION_AND_RESIZE : 2684 ANIMATE_INTO_POSITION_AND_DISAPPEAR; 2685 animateWidgetDrop(info, parent, d.dragView, 2686 onCompleteRunnable, animationType, cell, false); 2687 } else { 2688 int duration = snapScreen < 0 ? -1 : ADJACENT_SCREEN_DROP_DURATION; 2689 mLauncher.getDragLayer().animateViewIntoPosition(d.dragView, cell, duration, 2690 onCompleteRunnable, this); 2691 } 2692 } else { 2693 d.deferDragViewCleanupPostAnimation = false; 2694 cell.setVisibility(VISIBLE); 2695 } 2696 parent.onDropChild(cell); 2697 } 2698 } 2699 2700 public void setFinalScrollForPageChange(int pageIndex) { 2701 CellLayout cl = (CellLayout) getChildAt(pageIndex); 2702 if (cl != null) { 2703 mSavedScrollX = getScrollX(); 2704 mSavedTranslationX = cl.getTranslationX(); 2705 mSavedRotationY = cl.getRotationY(); 2706 final int newX = getScrollForPage(pageIndex); 2707 setScrollX(newX); 2708 cl.setTranslationX(0f); 2709 cl.setRotationY(0f); 2710 } 2711 } 2712 2713 public void resetFinalScrollForPageChange(int pageIndex) { 2714 if (pageIndex >= 0) { 2715 CellLayout cl = (CellLayout) getChildAt(pageIndex); 2716 setScrollX(mSavedScrollX); 2717 cl.setTranslationX(mSavedTranslationX); 2718 cl.setRotationY(mSavedRotationY); 2719 } 2720 } 2721 2722 public void getViewLocationRelativeToSelf(View v, int[] location) { 2723 getLocationInWindow(location); 2724 int x = location[0]; 2725 int y = location[1]; 2726 2727 v.getLocationInWindow(location); 2728 int vX = location[0]; 2729 int vY = location[1]; 2730 2731 location[0] = vX - x; 2732 location[1] = vY - y; 2733 } 2734 2735 public void onDragEnter(DragObject d) { 2736 mDragEnforcer.onDragEnter(); 2737 mCreateUserFolderOnDrop = false; 2738 mAddToExistingFolderOnDrop = false; 2739 2740 mDropToLayout = null; 2741 CellLayout layout = getCurrentDropLayout(); 2742 setCurrentDropLayout(layout); 2743 setCurrentDragOverlappingLayout(layout); 2744 2745 // Because we don't have space in the Phone UI (the CellLayouts run to the edge) we 2746 // don't need to show the outlines 2747 if (LauncherAppState.getInstance().isScreenLarge()) { 2748 showOutlines(); 2749 } 2750 } 2751 2752 /** Return a rect that has the cellWidth/cellHeight (left, top), and 2753 * widthGap/heightGap (right, bottom) */ 2754 static Rect getCellLayoutMetrics(Launcher launcher, int orientation) { 2755 LauncherAppState app = LauncherAppState.getInstance(); 2756 DeviceProfile grid = app.getDynamicGrid().getDeviceProfile(); 2757 2758 Resources res = launcher.getResources(); 2759 Display display = launcher.getWindowManager().getDefaultDisplay(); 2760 Point smallestSize = new Point(); 2761 Point largestSize = new Point(); 2762 display.getCurrentSizeRange(smallestSize, largestSize); 2763 int countX = (int) grid.numColumns; 2764 int countY = (int) grid.numRows; 2765 int constrainedLongEdge = largestSize.y; 2766 int constrainedShortEdge = smallestSize.y; 2767 if (orientation == CellLayout.LANDSCAPE) { 2768 if (mLandscapeCellLayoutMetrics == null) { 2769 Rect padding = grid.getWorkspacePadding(CellLayout.LANDSCAPE); 2770 int width = constrainedLongEdge - padding.left - padding.right; 2771 int height = constrainedShortEdge - padding.top - padding.bottom; 2772 mLandscapeCellLayoutMetrics = new Rect(); 2773 mLandscapeCellLayoutMetrics.set( 2774 grid.calculateCellWidth(width, countX), 2775 grid.calculateCellHeight(height, countY), 0, 0); 2776 } 2777 return mLandscapeCellLayoutMetrics; 2778 } else if (orientation == CellLayout.PORTRAIT) { 2779 if (mPortraitCellLayoutMetrics == null) { 2780 Rect padding = grid.getWorkspacePadding(CellLayout.PORTRAIT); 2781 int width = constrainedShortEdge - padding.left - padding.right; 2782 int height = constrainedLongEdge - padding.top - padding.bottom; 2783 mPortraitCellLayoutMetrics = new Rect(); 2784 mPortraitCellLayoutMetrics.set( 2785 grid.calculateCellWidth(width, countX), 2786 grid.calculateCellHeight(height, countY), 0, 0); 2787 } 2788 return mPortraitCellLayoutMetrics; 2789 } 2790 return null; 2791 } 2792 2793 public void onDragExit(DragObject d) { 2794 mDragEnforcer.onDragExit(); 2795 2796 // Here we store the final page that will be dropped to, if the workspace in fact 2797 // receives the drop 2798 if (mInScrollArea) { 2799 if (isPageMoving()) { 2800 // If the user drops while the page is scrolling, we should use that page as the 2801 // destination instead of the page that is being hovered over. 2802 mDropToLayout = (CellLayout) getPageAt(getNextPage()); 2803 } else { 2804 mDropToLayout = mDragOverlappingLayout; 2805 } 2806 } else { 2807 mDropToLayout = mDragTargetLayout; 2808 } 2809 2810 if (mDragMode == DRAG_MODE_CREATE_FOLDER) { 2811 mCreateUserFolderOnDrop = true; 2812 } else if (mDragMode == DRAG_MODE_ADD_TO_FOLDER) { 2813 mAddToExistingFolderOnDrop = true; 2814 } 2815 2816 // Reset the scroll area and previous drag target 2817 onResetScrollArea(); 2818 setCurrentDropLayout(null); 2819 setCurrentDragOverlappingLayout(null); 2820 2821 mSpringLoadedDragController.cancel(); 2822 2823 if (!mIsPageMoving) { 2824 hideOutlines(); 2825 } 2826 } 2827 2828 void setCurrentDropLayout(CellLayout layout) { 2829 if (mDragTargetLayout != null) { 2830 mDragTargetLayout.revertTempState(); 2831 mDragTargetLayout.onDragExit(); 2832 } 2833 mDragTargetLayout = layout; 2834 if (mDragTargetLayout != null) { 2835 mDragTargetLayout.onDragEnter(); 2836 } 2837 cleanupReorder(true); 2838 cleanupFolderCreation(); 2839 setCurrentDropOverCell(-1, -1); 2840 } 2841 2842 void setCurrentDragOverlappingLayout(CellLayout layout) { 2843 if (mDragOverlappingLayout != null) { 2844 mDragOverlappingLayout.setIsDragOverlapping(false); 2845 } 2846 mDragOverlappingLayout = layout; 2847 if (mDragOverlappingLayout != null) { 2848 mDragOverlappingLayout.setIsDragOverlapping(true); 2849 } 2850 invalidate(); 2851 } 2852 2853 void setCurrentDropOverCell(int x, int y) { 2854 if (x != mDragOverX || y != mDragOverY) { 2855 mDragOverX = x; 2856 mDragOverY = y; 2857 setDragMode(DRAG_MODE_NONE); 2858 } 2859 } 2860 2861 void setDragMode(int dragMode) { 2862 if (dragMode != mDragMode) { 2863 if (dragMode == DRAG_MODE_NONE) { 2864 cleanupAddToFolder(); 2865 // We don't want to cancel the re-order alarm every time the target cell changes 2866 // as this feels to slow / unresponsive. 2867 cleanupReorder(false); 2868 cleanupFolderCreation(); 2869 } else if (dragMode == DRAG_MODE_ADD_TO_FOLDER) { 2870 cleanupReorder(true); 2871 cleanupFolderCreation(); 2872 } else if (dragMode == DRAG_MODE_CREATE_FOLDER) { 2873 cleanupAddToFolder(); 2874 cleanupReorder(true); 2875 } else if (dragMode == DRAG_MODE_REORDER) { 2876 cleanupAddToFolder(); 2877 cleanupFolderCreation(); 2878 } 2879 mDragMode = dragMode; 2880 } 2881 } 2882 2883 private void cleanupFolderCreation() { 2884 if (mDragFolderRingAnimator != null) { 2885 mDragFolderRingAnimator.animateToNaturalState(); 2886 } 2887 mFolderCreationAlarm.cancelAlarm(); 2888 } 2889 2890 private void cleanupAddToFolder() { 2891 if (mDragOverFolderIcon != null) { 2892 mDragOverFolderIcon.onDragExit(null); 2893 mDragOverFolderIcon = null; 2894 } 2895 } 2896 2897 private void cleanupReorder(boolean cancelAlarm) { 2898 // Any pending reorders are canceled 2899 if (cancelAlarm) { 2900 mReorderAlarm.cancelAlarm(); 2901 } 2902 mLastReorderX = -1; 2903 mLastReorderY = -1; 2904 } 2905 2906 /* 2907 * 2908 * Convert the 2D coordinate xy from the parent View's coordinate space to this CellLayout's 2909 * coordinate space. The argument xy is modified with the return result. 2910 * 2911 * if cachedInverseMatrix is not null, this method will just use that matrix instead of 2912 * computing it itself; we use this to avoid redundant matrix inversions in 2913 * findMatchingPageForDragOver 2914 * 2915 */ 2916 void mapPointFromSelfToChild(View v, float[] xy, Matrix cachedInverseMatrix) { 2917 xy[0] = xy[0] - v.getLeft(); 2918 xy[1] = xy[1] - v.getTop(); 2919 } 2920 2921 boolean isPointInSelfOverHotseat(int x, int y, Rect r) { 2922 if (r == null) { 2923 r = new Rect(); 2924 } 2925 mTempPt[0] = x; 2926 mTempPt[1] = y; 2927 mLauncher.getDragLayer().getDescendantCoordRelativeToSelf(this, mTempPt, true); 2928 2929 LauncherAppState app = LauncherAppState.getInstance(); 2930 DeviceProfile grid = app.getDynamicGrid().getDeviceProfile(); 2931 r = grid.getHotseatRect(); 2932 if (r.contains(mTempPt[0], mTempPt[1])) { 2933 return true; 2934 } 2935 return false; 2936 } 2937 2938 void mapPointFromSelfToHotseatLayout(Hotseat hotseat, float[] xy) { 2939 mTempPt[0] = (int) xy[0]; 2940 mTempPt[1] = (int) xy[1]; 2941 mLauncher.getDragLayer().getDescendantCoordRelativeToSelf(this, mTempPt, true); 2942 mLauncher.getDragLayer().mapCoordInSelfToDescendent(hotseat.getLayout(), mTempPt); 2943 2944 xy[0] = mTempPt[0]; 2945 xy[1] = mTempPt[1]; 2946 } 2947 2948 /* 2949 * 2950 * Convert the 2D coordinate xy from this CellLayout's coordinate space to 2951 * the parent View's coordinate space. The argument xy is modified with the return result. 2952 * 2953 */ 2954 void mapPointFromChildToSelf(View v, float[] xy) { 2955 xy[0] += v.getLeft(); 2956 xy[1] += v.getTop(); 2957 } 2958 2959 static private float squaredDistance(float[] point1, float[] point2) { 2960 float distanceX = point1[0] - point2[0]; 2961 float distanceY = point2[1] - point2[1]; 2962 return distanceX * distanceX + distanceY * distanceY; 2963 } 2964 2965 /* 2966 * 2967 * This method returns the CellLayout that is currently being dragged to. In order to drag 2968 * to a CellLayout, either the touch point must be directly over the CellLayout, or as a second 2969 * strategy, we see if the dragView is overlapping any CellLayout and choose the closest one 2970 * 2971 * Return null if no CellLayout is currently being dragged over 2972 * 2973 */ 2974 private CellLayout findMatchingPageForDragOver( 2975 DragView dragView, float originX, float originY, boolean exact) { 2976 // We loop through all the screens (ie CellLayouts) and see which ones overlap 2977 // with the item being dragged and then choose the one that's closest to the touch point 2978 final int screenCount = getChildCount(); 2979 CellLayout bestMatchingScreen = null; 2980 float smallestDistSoFar = Float.MAX_VALUE; 2981 2982 for (int i = 0; i < screenCount; i++) { 2983 // The custom content screen is not a valid drag over option 2984 if (mScreenOrder.get(i) == CUSTOM_CONTENT_SCREEN_ID) { 2985 continue; 2986 } 2987 2988 CellLayout cl = (CellLayout) getChildAt(i); 2989 2990 final float[] touchXy = {originX, originY}; 2991 // Transform the touch coordinates to the CellLayout's local coordinates 2992 // If the touch point is within the bounds of the cell layout, we can return immediately 2993 cl.getMatrix().invert(mTempInverseMatrix); 2994 mapPointFromSelfToChild(cl, touchXy, mTempInverseMatrix); 2995 2996 if (touchXy[0] >= 0 && touchXy[0] <= cl.getWidth() && 2997 touchXy[1] >= 0 && touchXy[1] <= cl.getHeight()) { 2998 return cl; 2999 } 3000 3001 if (!exact) { 3002 // Get the center of the cell layout in screen coordinates 3003 final float[] cellLayoutCenter = mTempCellLayoutCenterCoordinates; 3004 cellLayoutCenter[0] = cl.getWidth()/2; 3005 cellLayoutCenter[1] = cl.getHeight()/2; 3006 mapPointFromChildToSelf(cl, cellLayoutCenter); 3007 3008 touchXy[0] = originX; 3009 touchXy[1] = originY; 3010 3011 // Calculate the distance between the center of the CellLayout 3012 // and the touch point 3013 float dist = squaredDistance(touchXy, cellLayoutCenter); 3014 3015 if (dist < smallestDistSoFar) { 3016 smallestDistSoFar = dist; 3017 bestMatchingScreen = cl; 3018 } 3019 } 3020 } 3021 return bestMatchingScreen; 3022 } 3023 3024 // This is used to compute the visual center of the dragView. This point is then 3025 // used to visualize drop locations and determine where to drop an item. The idea is that 3026 // the visual center represents the user's interpretation of where the item is, and hence 3027 // is the appropriate point to use when determining drop location. 3028 private float[] getDragViewVisualCenter(int x, int y, int xOffset, int yOffset, 3029 DragView dragView, float[] recycle) { 3030 float res[]; 3031 if (recycle == null) { 3032 res = new float[2]; 3033 } else { 3034 res = recycle; 3035 } 3036 3037 // First off, the drag view has been shifted in a way that is not represented in the 3038 // x and y values or the x/yOffsets. Here we account for that shift. 3039 x += getResources().getDimensionPixelSize(R.dimen.dragViewOffsetX); 3040 y += getResources().getDimensionPixelSize(R.dimen.dragViewOffsetY); 3041 3042 // These represent the visual top and left of drag view if a dragRect was provided. 3043 // If a dragRect was not provided, then they correspond to the actual view left and 3044 // top, as the dragRect is in that case taken to be the entire dragView. 3045 // R.dimen.dragViewOffsetY. 3046 int left = x - xOffset; 3047 int top = y - yOffset; 3048 3049 // In order to find the visual center, we shift by half the dragRect 3050 res[0] = left + dragView.getDragRegion().width() / 2; 3051 res[1] = top + dragView.getDragRegion().height() / 2; 3052 3053 return res; 3054 } 3055 3056 private boolean isDragWidget(DragObject d) { 3057 return (d.dragInfo instanceof LauncherAppWidgetInfo || 3058 d.dragInfo instanceof PendingAddWidgetInfo); 3059 } 3060 private boolean isExternalDragWidget(DragObject d) { 3061 return d.dragSource != this && isDragWidget(d); 3062 } 3063 3064 public void onDragOver(DragObject d) { 3065 // Skip drag over events while we are dragging over side pages 3066 if (mInScrollArea || mIsSwitchingState || mState == State.SMALL) return; 3067 3068 Rect r = new Rect(); 3069 CellLayout layout = null; 3070 ItemInfo item = (ItemInfo) d.dragInfo; 3071 3072 // Ensure that we have proper spans for the item that we are dropping 3073 if (item.spanX < 0 || item.spanY < 0) throw new RuntimeException("Improper spans found"); 3074 mDragViewVisualCenter = getDragViewVisualCenter(d.x, d.y, d.xOffset, d.yOffset, 3075 d.dragView, mDragViewVisualCenter); 3076 3077 final View child = (mDragInfo == null) ? null : mDragInfo.cell; 3078 // Identify whether we have dragged over a side page 3079 if (isSmall()) { 3080 if (mLauncher.getHotseat() != null && !isExternalDragWidget(d)) { 3081 if (isPointInSelfOverHotseat(d.x, d.y, r)) { 3082 layout = mLauncher.getHotseat().getLayout(); 3083 } 3084 } 3085 if (layout == null) { 3086 layout = findMatchingPageForDragOver(d.dragView, d.x, d.y, false); 3087 } 3088 if (layout != mDragTargetLayout) { 3089 setCurrentDropLayout(layout); 3090 setCurrentDragOverlappingLayout(layout); 3091 3092 boolean isInSpringLoadedMode = (mState == State.SPRING_LOADED); 3093 if (isInSpringLoadedMode) { 3094 if (mLauncher.isHotseatLayout(layout)) { 3095 mSpringLoadedDragController.cancel(); 3096 } else { 3097 mSpringLoadedDragController.setAlarm(mDragTargetLayout); 3098 } 3099 } 3100 } 3101 } else { 3102 // Test to see if we are over the hotseat otherwise just use the current page 3103 if (mLauncher.getHotseat() != null && !isDragWidget(d)) { 3104 if (isPointInSelfOverHotseat(d.x, d.y, r)) { 3105 layout = mLauncher.getHotseat().getLayout(); 3106 } 3107 } 3108 if (layout == null) { 3109 layout = getCurrentDropLayout(); 3110 } 3111 if (layout != mDragTargetLayout) { 3112 setCurrentDropLayout(layout); 3113 setCurrentDragOverlappingLayout(layout); 3114 } 3115 } 3116 3117 // Handle the drag over 3118 if (mDragTargetLayout != null) { 3119 // We want the point to be mapped to the dragTarget. 3120 if (mLauncher.isHotseatLayout(mDragTargetLayout)) { 3121 mapPointFromSelfToHotseatLayout(mLauncher.getHotseat(), mDragViewVisualCenter); 3122 } else { 3123 mapPointFromSelfToChild(mDragTargetLayout, mDragViewVisualCenter, null); 3124 } 3125 3126 ItemInfo info = (ItemInfo) d.dragInfo; 3127 3128 int minSpanX = item.spanX; 3129 int minSpanY = item.spanY; 3130 if (item.minSpanX > 0 && item.minSpanY > 0) { 3131 minSpanX = item.minSpanX; 3132 minSpanY = item.minSpanY; 3133 } 3134 3135 mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], 3136 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, 3137 mDragTargetLayout, mTargetCell); 3138 int reorderX = mTargetCell[0]; 3139 int reorderY = mTargetCell[1]; 3140 3141 setCurrentDropOverCell(mTargetCell[0], mTargetCell[1]); 3142 3143 float targetCellDistance = mDragTargetLayout.getDistanceFromCell( 3144 mDragViewVisualCenter[0], mDragViewVisualCenter[1], mTargetCell); 3145 3146 final View dragOverView = mDragTargetLayout.getChildAt(mTargetCell[0], 3147 mTargetCell[1]); 3148 3149 manageFolderFeedback(info, mDragTargetLayout, mTargetCell, 3150 targetCellDistance, dragOverView); 3151 3152 boolean nearestDropOccupied = mDragTargetLayout.isNearestDropLocationOccupied((int) 3153 mDragViewVisualCenter[0], (int) mDragViewVisualCenter[1], item.spanX, 3154 item.spanY, child, mTargetCell); 3155 3156 if (!nearestDropOccupied) { 3157 mDragTargetLayout.visualizeDropLocation(child, mDragOutline, 3158 (int) mDragViewVisualCenter[0], (int) mDragViewVisualCenter[1], 3159 mTargetCell[0], mTargetCell[1], item.spanX, item.spanY, false, 3160 d.dragView.getDragVisualizeOffset(), d.dragView.getDragRegion()); 3161 } else if ((mDragMode == DRAG_MODE_NONE || mDragMode == DRAG_MODE_REORDER) 3162 && !mReorderAlarm.alarmPending() && (mLastReorderX != reorderX || 3163 mLastReorderY != reorderY)) { 3164 3165 // Otherwise, if we aren't adding to or creating a folder and there's no pending 3166 // reorder, then we schedule a reorder 3167 ReorderAlarmListener listener = new ReorderAlarmListener(mDragViewVisualCenter, 3168 minSpanX, minSpanY, item.spanX, item.spanY, d.dragView, child); 3169 mReorderAlarm.setOnAlarmListener(listener); 3170 mReorderAlarm.setAlarm(REORDER_TIMEOUT); 3171 } 3172 3173 if (mDragMode == DRAG_MODE_CREATE_FOLDER || mDragMode == DRAG_MODE_ADD_TO_FOLDER || 3174 !nearestDropOccupied) { 3175 if (mDragTargetLayout != null) { 3176 mDragTargetLayout.revertTempState(); 3177 } 3178 } 3179 } 3180 } 3181 3182 private void manageFolderFeedback(ItemInfo info, CellLayout targetLayout, 3183 int[] targetCell, float distance, View dragOverView) { 3184 boolean userFolderPending = willCreateUserFolder(info, targetLayout, targetCell, distance, 3185 false); 3186 3187 if (mDragMode == DRAG_MODE_NONE && userFolderPending && 3188 !mFolderCreationAlarm.alarmPending()) { 3189 mFolderCreationAlarm.setOnAlarmListener(new 3190 FolderCreationAlarmListener(targetLayout, targetCell[0], targetCell[1])); 3191 mFolderCreationAlarm.setAlarm(FOLDER_CREATION_TIMEOUT); 3192 return; 3193 } 3194 3195 boolean willAddToFolder = 3196 willAddToExistingUserFolder(info, targetLayout, targetCell, distance); 3197 3198 if (willAddToFolder && mDragMode == DRAG_MODE_NONE) { 3199 mDragOverFolderIcon = ((FolderIcon) dragOverView); 3200 mDragOverFolderIcon.onDragEnter(info); 3201 if (targetLayout != null) { 3202 targetLayout.clearDragOutlines(); 3203 } 3204 setDragMode(DRAG_MODE_ADD_TO_FOLDER); 3205 return; 3206 } 3207 3208 if (mDragMode == DRAG_MODE_ADD_TO_FOLDER && !willAddToFolder) { 3209 setDragMode(DRAG_MODE_NONE); 3210 } 3211 if (mDragMode == DRAG_MODE_CREATE_FOLDER && !userFolderPending) { 3212 setDragMode(DRAG_MODE_NONE); 3213 } 3214 3215 return; 3216 } 3217 3218 class FolderCreationAlarmListener implements OnAlarmListener { 3219 CellLayout layout; 3220 int cellX; 3221 int cellY; 3222 3223 public FolderCreationAlarmListener(CellLayout layout, int cellX, int cellY) { 3224 this.layout = layout; 3225 this.cellX = cellX; 3226 this.cellY = cellY; 3227 } 3228 3229 public void onAlarm(Alarm alarm) { 3230 if (mDragFolderRingAnimator == null) { 3231 mDragFolderRingAnimator = new FolderRingAnimator(mLauncher, null); 3232 } 3233 mDragFolderRingAnimator.setCell(cellX, cellY); 3234 mDragFolderRingAnimator.setCellLayout(layout); 3235 mDragFolderRingAnimator.animateToAcceptState(); 3236 layout.showFolderAccept(mDragFolderRingAnimator); 3237 layout.clearDragOutlines(); 3238 setDragMode(DRAG_MODE_CREATE_FOLDER); 3239 } 3240 } 3241 3242 class ReorderAlarmListener implements OnAlarmListener { 3243 float[] dragViewCenter; 3244 int minSpanX, minSpanY, spanX, spanY; 3245 DragView dragView; 3246 View child; 3247 3248 public ReorderAlarmListener(float[] dragViewCenter, int minSpanX, int minSpanY, int spanX, 3249 int spanY, DragView dragView, View child) { 3250 this.dragViewCenter = dragViewCenter; 3251 this.minSpanX = minSpanX; 3252 this.minSpanY = minSpanY; 3253 this.spanX = spanX; 3254 this.spanY = spanY; 3255 this.child = child; 3256 this.dragView = dragView; 3257 } 3258 3259 public void onAlarm(Alarm alarm) { 3260 int[] resultSpan = new int[2]; 3261 mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], 3262 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, mDragTargetLayout, 3263 mTargetCell); 3264 mLastReorderX = mTargetCell[0]; 3265 mLastReorderY = mTargetCell[1]; 3266 3267 mTargetCell = mDragTargetLayout.createArea((int) mDragViewVisualCenter[0], 3268 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, spanX, spanY, 3269 child, mTargetCell, resultSpan, CellLayout.MODE_DRAG_OVER); 3270 3271 if (mTargetCell[0] < 0 || mTargetCell[1] < 0) { 3272 mDragTargetLayout.revertTempState(); 3273 } else { 3274 setDragMode(DRAG_MODE_REORDER); 3275 } 3276 3277 boolean resize = resultSpan[0] != spanX || resultSpan[1] != spanY; 3278 mDragTargetLayout.visualizeDropLocation(child, mDragOutline, 3279 (int) mDragViewVisualCenter[0], (int) mDragViewVisualCenter[1], 3280 mTargetCell[0], mTargetCell[1], resultSpan[0], resultSpan[1], resize, 3281 dragView.getDragVisualizeOffset(), dragView.getDragRegion()); 3282 } 3283 } 3284 3285 @Override 3286 public void getHitRectRelativeToDragLayer(Rect outRect) { 3287 // We want the workspace to have the whole area of the display (it will find the correct 3288 // cell layout to drop to in the existing drag/drop logic. 3289 mLauncher.getDragLayer().getDescendantRectRelativeToSelf(this, outRect); 3290 } 3291 3292 /** 3293 * Add the item specified by dragInfo to the given layout. 3294 * @return true if successful 3295 */ 3296 public boolean addExternalItemToScreen(ItemInfo dragInfo, CellLayout layout) { 3297 if (layout.findCellForSpan(mTempEstimate, dragInfo.spanX, dragInfo.spanY)) { 3298 onDropExternal(dragInfo.dropPos, (ItemInfo) dragInfo, (CellLayout) layout, false); 3299 return true; 3300 } 3301 mLauncher.showOutOfSpaceMessage(mLauncher.isHotseatLayout(layout)); 3302 return false; 3303 } 3304 3305 private void onDropExternal(int[] touchXY, Object dragInfo, 3306 CellLayout cellLayout, boolean insertAtFirst) { 3307 onDropExternal(touchXY, dragInfo, cellLayout, insertAtFirst, null); 3308 } 3309 3310 /** 3311 * Drop an item that didn't originate on one of the workspace screens. 3312 * It may have come from Launcher (e.g. from all apps or customize), or it may have 3313 * come from another app altogether. 3314 * 3315 * NOTE: This can also be called when we are outside of a drag event, when we want 3316 * to add an item to one of the workspace screens. 3317 */ 3318 private void onDropExternal(final int[] touchXY, final Object dragInfo, 3319 final CellLayout cellLayout, boolean insertAtFirst, DragObject d) { 3320 final Runnable exitSpringLoadedRunnable = new Runnable() { 3321 @Override 3322 public void run() { 3323 mLauncher.exitSpringLoadedDragModeDelayed(true, false, null); 3324 } 3325 }; 3326 3327 ItemInfo info = (ItemInfo) dragInfo; 3328 int spanX = info.spanX; 3329 int spanY = info.spanY; 3330 if (mDragInfo != null) { 3331 spanX = mDragInfo.spanX; 3332 spanY = mDragInfo.spanY; 3333 } 3334 3335 final long container = mLauncher.isHotseatLayout(cellLayout) ? 3336 LauncherSettings.Favorites.CONTAINER_HOTSEAT : 3337 LauncherSettings.Favorites.CONTAINER_DESKTOP; 3338 final long screenId = getIdForScreen(cellLayout); 3339 if (!mLauncher.isHotseatLayout(cellLayout) 3340 && screenId != getScreenIdForPageIndex(mCurrentPage) 3341 && mState != State.SPRING_LOADED) { 3342 snapToScreenId(screenId, null); 3343 } 3344 3345 if (info instanceof PendingAddItemInfo) { 3346 final PendingAddItemInfo pendingInfo = (PendingAddItemInfo) dragInfo; 3347 3348 boolean findNearestVacantCell = true; 3349 if (pendingInfo.itemType == LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT) { 3350 mTargetCell = findNearestArea((int) touchXY[0], (int) touchXY[1], spanX, spanY, 3351 cellLayout, mTargetCell); 3352 float distance = cellLayout.getDistanceFromCell(mDragViewVisualCenter[0], 3353 mDragViewVisualCenter[1], mTargetCell); 3354 if (willCreateUserFolder((ItemInfo) d.dragInfo, cellLayout, mTargetCell, 3355 distance, true) || willAddToExistingUserFolder((ItemInfo) d.dragInfo, 3356 cellLayout, mTargetCell, distance)) { 3357 findNearestVacantCell = false; 3358 } 3359 } 3360 3361 final ItemInfo item = (ItemInfo) d.dragInfo; 3362 boolean updateWidgetSize = false; 3363 if (findNearestVacantCell) { 3364 int minSpanX = item.spanX; 3365 int minSpanY = item.spanY; 3366 if (item.minSpanX > 0 && item.minSpanY > 0) { 3367 minSpanX = item.minSpanX; 3368 minSpanY = item.minSpanY; 3369 } 3370 int[] resultSpan = new int[2]; 3371 mTargetCell = cellLayout.createArea((int) mDragViewVisualCenter[0], 3372 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, info.spanX, info.spanY, 3373 null, mTargetCell, resultSpan, CellLayout.MODE_ON_DROP_EXTERNAL); 3374 3375 if (resultSpan[0] != item.spanX || resultSpan[1] != item.spanY) { 3376 updateWidgetSize = true; 3377 } 3378 item.spanX = resultSpan[0]; 3379 item.spanY = resultSpan[1]; 3380 } 3381 3382 Runnable onAnimationCompleteRunnable = new Runnable() { 3383 @Override 3384 public void run() { 3385 // When dragging and dropping from customization tray, we deal with creating 3386 // widgets/shortcuts/folders in a slightly different way 3387 switch (pendingInfo.itemType) { 3388 case LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET: 3389 int span[] = new int[2]; 3390 span[0] = item.spanX; 3391 span[1] = item.spanY; 3392 mLauncher.addAppWidgetFromDrop((PendingAddWidgetInfo) pendingInfo, 3393 container, screenId, mTargetCell, span, null); 3394 break; 3395 case LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT: 3396 mLauncher.processShortcutFromDrop(pendingInfo.componentName, 3397 container, screenId, mTargetCell, null); 3398 break; 3399 default: 3400 throw new IllegalStateException("Unknown item type: " + 3401 pendingInfo.itemType); 3402 } 3403 } 3404 }; 3405 View finalView = pendingInfo.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET 3406 ? ((PendingAddWidgetInfo) pendingInfo).boundWidget : null; 3407 3408 if (finalView instanceof AppWidgetHostView && updateWidgetSize) { 3409 AppWidgetHostView awhv = (AppWidgetHostView) finalView; 3410 AppWidgetResizeFrame.updateWidgetSizeRanges(awhv, mLauncher, item.spanX, 3411 item.spanY); 3412 } 3413 3414 int animationStyle = ANIMATE_INTO_POSITION_AND_DISAPPEAR; 3415 if (pendingInfo.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET && 3416 ((PendingAddWidgetInfo) pendingInfo).info.configure != null) { 3417 animationStyle = ANIMATE_INTO_POSITION_AND_REMAIN; 3418 } 3419 animateWidgetDrop(info, cellLayout, d.dragView, onAnimationCompleteRunnable, 3420 animationStyle, finalView, true); 3421 } else { 3422 // This is for other drag/drop cases, like dragging from All Apps 3423 View view = null; 3424 3425 switch (info.itemType) { 3426 case LauncherSettings.Favorites.ITEM_TYPE_APPLICATION: 3427 case LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT: 3428 if (info.container == NO_ID && info instanceof AppInfo) { 3429 // Came from all apps -- make a copy 3430 info = new ShortcutInfo((AppInfo) info); 3431 } 3432 view = mLauncher.createShortcut(R.layout.application, cellLayout, 3433 (ShortcutInfo) info); 3434 break; 3435 case LauncherSettings.Favorites.ITEM_TYPE_FOLDER: 3436 view = FolderIcon.fromXml(R.layout.folder_icon, mLauncher, cellLayout, 3437 (FolderInfo) info, mIconCache); 3438 break; 3439 default: 3440 throw new IllegalStateException("Unknown item type: " + info.itemType); 3441 } 3442 3443 // First we find the cell nearest to point at which the item is 3444 // dropped, without any consideration to whether there is an item there. 3445 if (touchXY != null) { 3446 mTargetCell = findNearestArea((int) touchXY[0], (int) touchXY[1], spanX, spanY, 3447 cellLayout, mTargetCell); 3448 float distance = cellLayout.getDistanceFromCell(mDragViewVisualCenter[0], 3449 mDragViewVisualCenter[1], mTargetCell); 3450 d.postAnimationRunnable = exitSpringLoadedRunnable; 3451 if (createUserFolderIfNecessary(view, container, cellLayout, mTargetCell, distance, 3452 true, d.dragView, d.postAnimationRunnable)) { 3453 return; 3454 } 3455 if (addToExistingFolderIfNecessary(view, cellLayout, mTargetCell, distance, d, 3456 true)) { 3457 return; 3458 } 3459 } 3460 3461 if (touchXY != null) { 3462 // when dragging and dropping, just find the closest free spot 3463 mTargetCell = cellLayout.createArea((int) mDragViewVisualCenter[0], 3464 (int) mDragViewVisualCenter[1], 1, 1, 1, 1, 3465 null, mTargetCell, null, CellLayout.MODE_ON_DROP_EXTERNAL); 3466 } else { 3467 cellLayout.findCellForSpan(mTargetCell, 1, 1); 3468 } 3469 addInScreen(view, container, screenId, mTargetCell[0], mTargetCell[1], info.spanX, 3470 info.spanY, insertAtFirst); 3471 cellLayout.onDropChild(view); 3472 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) view.getLayoutParams(); 3473 cellLayout.getShortcutsAndWidgets().measureChild(view); 3474 3475 LauncherModel.addOrMoveItemInDatabase(mLauncher, info, container, screenId, 3476 lp.cellX, lp.cellY); 3477 3478 if (d.dragView != null) { 3479 // We wrap the animation call in the temporary set and reset of the current 3480 // cellLayout to its final transform -- this means we animate the drag view to 3481 // the correct final location. 3482 setFinalTransitionTransform(cellLayout); 3483 mLauncher.getDragLayer().animateViewIntoPosition(d.dragView, view, 3484 exitSpringLoadedRunnable); 3485 resetTransitionTransform(cellLayout); 3486 } 3487 } 3488 } 3489 3490 public Bitmap createWidgetBitmap(ItemInfo widgetInfo, View layout) { 3491 int[] unScaledSize = mLauncher.getWorkspace().estimateItemSize(widgetInfo.spanX, 3492 widgetInfo.spanY, widgetInfo, false); 3493 int visibility = layout.getVisibility(); 3494 layout.setVisibility(VISIBLE); 3495 3496 int width = MeasureSpec.makeMeasureSpec(unScaledSize[0], MeasureSpec.EXACTLY); 3497 int height = MeasureSpec.makeMeasureSpec(unScaledSize[1], MeasureSpec.EXACTLY); 3498 Bitmap b = Bitmap.createBitmap(unScaledSize[0], unScaledSize[1], 3499 Bitmap.Config.ARGB_8888); 3500 Canvas c = new Canvas(b); 3501 3502 layout.measure(width, height); 3503 layout.layout(0, 0, unScaledSize[0], unScaledSize[1]); 3504 layout.draw(c); 3505 c.setBitmap(null); 3506 layout.setVisibility(visibility); 3507 return b; 3508 } 3509 3510 private void getFinalPositionForDropAnimation(int[] loc, float[] scaleXY, 3511 DragView dragView, CellLayout layout, ItemInfo info, int[] targetCell, 3512 boolean external, boolean scale) { 3513 // Now we animate the dragView, (ie. the widget or shortcut preview) into its final 3514 // location and size on the home screen. 3515 int spanX = info.spanX; 3516 int spanY = info.spanY; 3517 3518 Rect r = estimateItemPosition(layout, info, targetCell[0], targetCell[1], spanX, spanY); 3519 loc[0] = r.left; 3520 loc[1] = r.top; 3521 3522 setFinalTransitionTransform(layout); 3523 float cellLayoutScale = 3524 mLauncher.getDragLayer().getDescendantCoordRelativeToSelf(layout, loc, true); 3525 resetTransitionTransform(layout); 3526 3527 float dragViewScaleX; 3528 float dragViewScaleY; 3529 if (scale) { 3530 dragViewScaleX = (1.0f * r.width()) / dragView.getMeasuredWidth(); 3531 dragViewScaleY = (1.0f * r.height()) / dragView.getMeasuredHeight(); 3532 } else { 3533 dragViewScaleX = 1f; 3534 dragViewScaleY = 1f; 3535 } 3536 3537 // The animation will scale the dragView about its center, so we need to center about 3538 // the final location. 3539 loc[0] -= (dragView.getMeasuredWidth() - cellLayoutScale * r.width()) / 2; 3540 loc[1] -= (dragView.getMeasuredHeight() - cellLayoutScale * r.height()) / 2; 3541 3542 scaleXY[0] = dragViewScaleX * cellLayoutScale; 3543 scaleXY[1] = dragViewScaleY * cellLayoutScale; 3544 } 3545 3546 public void animateWidgetDrop(ItemInfo info, CellLayout cellLayout, DragView dragView, 3547 final Runnable onCompleteRunnable, int animationType, final View finalView, 3548 boolean external) { 3549 Rect from = new Rect(); 3550 mLauncher.getDragLayer().getViewRectRelativeToSelf(dragView, from); 3551 3552 int[] finalPos = new int[2]; 3553 float scaleXY[] = new float[2]; 3554 boolean scalePreview = !(info instanceof PendingAddShortcutInfo); 3555 getFinalPositionForDropAnimation(finalPos, scaleXY, dragView, cellLayout, info, mTargetCell, 3556 external, scalePreview); 3557 3558 Resources res = mLauncher.getResources(); 3559 int duration = res.getInteger(R.integer.config_dropAnimMaxDuration) - 200; 3560 3561 // In the case where we've prebound the widget, we remove it from the DragLayer 3562 if (finalView instanceof AppWidgetHostView && external) { 3563 Log.d(TAG, "6557954 Animate widget drop, final view is appWidgetHostView"); 3564 mLauncher.getDragLayer().removeView(finalView); 3565 } 3566 if ((animationType == ANIMATE_INTO_POSITION_AND_RESIZE || external) && finalView != null) { 3567 Bitmap crossFadeBitmap = createWidgetBitmap(info, finalView); 3568 dragView.setCrossFadeBitmap(crossFadeBitmap); 3569 dragView.crossFade((int) (duration * 0.8f)); 3570 } else if (info.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET && external) { 3571 scaleXY[0] = scaleXY[1] = Math.min(scaleXY[0], scaleXY[1]); 3572 } 3573 3574 DragLayer dragLayer = mLauncher.getDragLayer(); 3575 if (animationType == CANCEL_TWO_STAGE_WIDGET_DROP_ANIMATION) { 3576 mLauncher.getDragLayer().animateViewIntoPosition(dragView, finalPos, 0f, 0.1f, 0.1f, 3577 DragLayer.ANIMATION_END_DISAPPEAR, onCompleteRunnable, duration); 3578 } else { 3579 int endStyle; 3580 if (animationType == ANIMATE_INTO_POSITION_AND_REMAIN) { 3581 endStyle = DragLayer.ANIMATION_END_REMAIN_VISIBLE; 3582 } else { 3583 endStyle = DragLayer.ANIMATION_END_DISAPPEAR;; 3584 } 3585 3586 Runnable onComplete = new Runnable() { 3587 @Override 3588 public void run() { 3589 if (finalView != null) { 3590 finalView.setVisibility(VISIBLE); 3591 } 3592 if (onCompleteRunnable != null) { 3593 onCompleteRunnable.run(); 3594 } 3595 } 3596 }; 3597 dragLayer.animateViewIntoPosition(dragView, from.left, from.top, finalPos[0], 3598 finalPos[1], 1, 1, 1, scaleXY[0], scaleXY[1], onComplete, endStyle, 3599 duration, this); 3600 } 3601 } 3602 3603 public void setFinalTransitionTransform(CellLayout layout) { 3604 if (isSwitchingState()) { 3605 mCurrentScale = getScaleX(); 3606 setScaleX(mNewScale); 3607 setScaleY(mNewScale); 3608 } 3609 } 3610 public void resetTransitionTransform(CellLayout layout) { 3611 if (isSwitchingState()) { 3612 setScaleX(mCurrentScale); 3613 setScaleY(mCurrentScale); 3614 } 3615 } 3616 3617 /** 3618 * Return the current {@link CellLayout}, correctly picking the destination 3619 * screen while a scroll is in progress. 3620 */ 3621 public CellLayout getCurrentDropLayout() { 3622 return (CellLayout) getChildAt(getNextPage()); 3623 } 3624 3625 /** 3626 * Return the current CellInfo describing our current drag; this method exists 3627 * so that Launcher can sync this object with the correct info when the activity is created/ 3628 * destroyed 3629 * 3630 */ 3631 public CellLayout.CellInfo getDragInfo() { 3632 return mDragInfo; 3633 } 3634 3635 /** 3636 * Calculate the nearest cell where the given object would be dropped. 3637 * 3638 * pixelX and pixelY should be in the coordinate system of layout 3639 */ 3640 private int[] findNearestArea(int pixelX, int pixelY, 3641 int spanX, int spanY, CellLayout layout, int[] recycle) { 3642 return layout.findNearestArea( 3643 pixelX, pixelY, spanX, spanY, recycle); 3644 } 3645 3646 void setup(DragController dragController) { 3647 mSpringLoadedDragController = new SpringLoadedDragController(mLauncher); 3648 mDragController = dragController; 3649 3650 // hardware layers on children are enabled on startup, but should be disabled until 3651 // needed 3652 updateChildrenLayersEnabled(false); 3653 setWallpaperDimension(); 3654 } 3655 3656 /** 3657 * Called at the end of a drag which originated on the workspace. 3658 */ 3659 public void onDropCompleted(final View target, final DragObject d, 3660 final boolean isFlingToDelete, final boolean success) { 3661 if (mDeferDropAfterUninstall) { 3662 mDeferredAction = new Runnable() { 3663 public void run() { 3664 onDropCompleted(target, d, isFlingToDelete, success); 3665 mDeferredAction = null; 3666 } 3667 }; 3668 return; 3669 } 3670 3671 boolean beingCalledAfterUninstall = mDeferredAction != null; 3672 3673 if (success && !(beingCalledAfterUninstall && !mUninstallSuccessful)) { 3674 if (target != this && mDragInfo != null) { 3675 CellLayout parentCell = getParentCellLayoutForView(mDragInfo.cell); 3676 if (parentCell != null) { 3677 parentCell.removeView(mDragInfo.cell); 3678 } 3679 if (mDragInfo.cell instanceof DropTarget) { 3680 mDragController.removeDropTarget((DropTarget) mDragInfo.cell); 3681 } 3682 // If we move the item to anything not on the Workspace, check if any empty 3683 // screens need to be removed. If we dropped back on the workspace, this will 3684 // be done post drop animation. 3685 stripEmptyScreens(); 3686 } 3687 } else if (mDragInfo != null) { 3688 CellLayout cellLayout; 3689 if (mLauncher.isHotseatLayout(target)) { 3690 cellLayout = mLauncher.getHotseat().getLayout(); 3691 } else { 3692 cellLayout = getScreenWithId(mDragInfo.screenId); 3693 } 3694 cellLayout.onDropChild(mDragInfo.cell); 3695 } 3696 if ((d.cancelled || (beingCalledAfterUninstall && !mUninstallSuccessful)) 3697 && mDragInfo.cell != null) { 3698 mDragInfo.cell.setVisibility(VISIBLE); 3699 } 3700 mDragOutline = null; 3701 mDragInfo = null; 3702 } 3703 3704 public void deferCompleteDropAfterUninstallActivity() { 3705 mDeferDropAfterUninstall = true; 3706 } 3707 3708 /// maybe move this into a smaller part 3709 public void onUninstallActivityReturned(boolean success) { 3710 mDeferDropAfterUninstall = false; 3711 mUninstallSuccessful = success; 3712 if (mDeferredAction != null) { 3713 mDeferredAction.run(); 3714 } 3715 } 3716 3717 void updateItemLocationsInDatabase(CellLayout cl) { 3718 int count = cl.getShortcutsAndWidgets().getChildCount(); 3719 3720 long screenId = getIdForScreen(cl); 3721 int container = Favorites.CONTAINER_DESKTOP; 3722 3723 if (mLauncher.isHotseatLayout(cl)) { 3724 screenId = -1; 3725 container = Favorites.CONTAINER_HOTSEAT; 3726 } 3727 3728 for (int i = 0; i < count; i++) { 3729 View v = cl.getShortcutsAndWidgets().getChildAt(i); 3730 ItemInfo info = (ItemInfo) v.getTag(); 3731 // Null check required as the AllApps button doesn't have an item info 3732 if (info != null && info.requiresDbUpdate) { 3733 info.requiresDbUpdate = false; 3734 LauncherModel.modifyItemInDatabase(mLauncher, info, container, screenId, info.cellX, 3735 info.cellY, info.spanX, info.spanY); 3736 } 3737 } 3738 } 3739 3740 ArrayList<ComponentName> getUniqueComponents(boolean stripDuplicates, ArrayList<ComponentName> duplicates) { 3741 ArrayList<ComponentName> uniqueIntents = new ArrayList<ComponentName>(); 3742 getUniqueIntents((CellLayout) mLauncher.getHotseat().getLayout(), uniqueIntents, duplicates, false); 3743 int count = getChildCount(); 3744 for (int i = 0; i < count; i++) { 3745 CellLayout cl = (CellLayout) getChildAt(i); 3746 getUniqueIntents(cl, uniqueIntents, duplicates, false); 3747 } 3748 return uniqueIntents; 3749 } 3750 3751 void getUniqueIntents(CellLayout cl, ArrayList<ComponentName> uniqueIntents, 3752 ArrayList<ComponentName> duplicates, boolean stripDuplicates) { 3753 int count = cl.getShortcutsAndWidgets().getChildCount(); 3754 3755 ArrayList<View> children = new ArrayList<View>(); 3756 for (int i = 0; i < count; i++) { 3757 View v = cl.getShortcutsAndWidgets().getChildAt(i); 3758 children.add(v); 3759 } 3760 3761 for (int i = 0; i < count; i++) { 3762 View v = children.get(i); 3763 ItemInfo info = (ItemInfo) v.getTag(); 3764 // Null check required as the AllApps button doesn't have an item info 3765 if (info instanceof ShortcutInfo) { 3766 ShortcutInfo si = (ShortcutInfo) info; 3767 ComponentName cn = si.intent.getComponent(); 3768 3769 Uri dataUri = si.intent.getData(); 3770 // If dataUri is not null / empty or if this component isn't one that would 3771 // have previously showed up in the AllApps list, then this is a widget-type 3772 // shortcut, so ignore it. 3773 if (dataUri != null && !dataUri.equals(Uri.EMPTY)) { 3774 continue; 3775 } 3776 3777 if (!uniqueIntents.contains(cn)) { 3778 uniqueIntents.add(cn); 3779 } else { 3780 if (stripDuplicates) { 3781 cl.removeViewInLayout(v); 3782 LauncherModel.deleteItemFromDatabase(mLauncher, si); 3783 } 3784 if (duplicates != null) { 3785 duplicates.add(cn); 3786 } 3787 } 3788 } 3789 if (v instanceof FolderIcon) { 3790 FolderIcon fi = (FolderIcon) v; 3791 ArrayList<View> items = fi.getFolder().getItemsInReadingOrder(); 3792 for (int j = 0; j < items.size(); j++) { 3793 if (items.get(j).getTag() instanceof ShortcutInfo) { 3794 ShortcutInfo si = (ShortcutInfo) items.get(j).getTag(); 3795 ComponentName cn = si.intent.getComponent(); 3796 3797 Uri dataUri = si.intent.getData(); 3798 // If dataUri is not null / empty or if this component isn't one that would 3799 // have previously showed up in the AllApps list, then this is a widget-type 3800 // shortcut, so ignore it. 3801 if (dataUri != null && !dataUri.equals(Uri.EMPTY)) { 3802 continue; 3803 } 3804 3805 if (!uniqueIntents.contains(cn)) { 3806 uniqueIntents.add(cn); 3807 } else { 3808 if (stripDuplicates) { 3809 fi.getFolderInfo().remove(si); 3810 LauncherModel.deleteItemFromDatabase(mLauncher, si); 3811 } 3812 if (duplicates != null) { 3813 duplicates.add(cn); 3814 } 3815 } 3816 } 3817 } 3818 } 3819 } 3820 } 3821 3822 void saveWorkspaceToDb() { 3823 saveWorkspaceScreenToDb((CellLayout) mLauncher.getHotseat().getLayout()); 3824 int count = getChildCount(); 3825 for (int i = 0; i < count; i++) { 3826 CellLayout cl = (CellLayout) getChildAt(i); 3827 saveWorkspaceScreenToDb(cl); 3828 } 3829 } 3830 3831 void saveWorkspaceScreenToDb(CellLayout cl) { 3832 int count = cl.getShortcutsAndWidgets().getChildCount(); 3833 3834 long screenId = getIdForScreen(cl); 3835 int container = Favorites.CONTAINER_DESKTOP; 3836 3837 Hotseat hotseat = mLauncher.getHotseat(); 3838 if (mLauncher.isHotseatLayout(cl)) { 3839 screenId = -1; 3840 container = Favorites.CONTAINER_HOTSEAT; 3841 } 3842 3843 for (int i = 0; i < count; i++) { 3844 View v = cl.getShortcutsAndWidgets().getChildAt(i); 3845 ItemInfo info = (ItemInfo) v.getTag(); 3846 // Null check required as the AllApps button doesn't have an item info 3847 if (info != null) { 3848 int cellX = info.cellX; 3849 int cellY = info.cellY; 3850 if (container == Favorites.CONTAINER_HOTSEAT) { 3851 cellX = hotseat.getCellXFromOrder((int) info.screenId); 3852 cellY = hotseat.getCellYFromOrder((int) info.screenId); 3853 } 3854 LauncherModel.addItemToDatabase(mLauncher, info, container, screenId, cellX, 3855 cellY, false); 3856 } 3857 if (v instanceof FolderIcon) { 3858 FolderIcon fi = (FolderIcon) v; 3859 fi.getFolder().addItemLocationsInDatabase(); 3860 } 3861 } 3862 } 3863 3864 @Override 3865 public boolean supportsFlingToDelete() { 3866 return true; 3867 } 3868 3869 @Override 3870 public void onFlingToDelete(DragObject d, int x, int y, PointF vec) { 3871 // Do nothing 3872 } 3873 3874 @Override 3875 public void onFlingToDeleteCompleted() { 3876 // Do nothing 3877 } 3878 3879 public boolean isDropEnabled() { 3880 return true; 3881 } 3882 3883 @Override 3884 protected void onRestoreInstanceState(Parcelable state) { 3885 super.onRestoreInstanceState(state); 3886 Launcher.setScreen(mCurrentPage); 3887 } 3888 3889 @Override 3890 protected void dispatchRestoreInstanceState(SparseArray<Parcelable> container) { 3891 // We don't dispatch restoreInstanceState to our children using this code path. 3892 // Some pages will be restored immediately as their items are bound immediately, and 3893 // others we will need to wait until after their items are bound. 3894 mSavedStates = container; 3895 } 3896 3897 public void restoreInstanceStateForChild(int child) { 3898 if (mSavedStates != null) { 3899 mRestoredPages.add(child); 3900 CellLayout cl = (CellLayout) getChildAt(child); 3901 cl.restoreInstanceState(mSavedStates); 3902 } 3903 } 3904 3905 public void restoreInstanceStateForRemainingPages() { 3906 int count = getChildCount(); 3907 for (int i = 0; i < count; i++) { 3908 if (!mRestoredPages.contains(i)) { 3909 restoreInstanceStateForChild(i); 3910 } 3911 } 3912 mRestoredPages.clear(); 3913 } 3914 3915 @Override 3916 public void scrollLeft() { 3917 if (!isSmall() && !mIsSwitchingState) { 3918 super.scrollLeft(); 3919 } 3920 Folder openFolder = getOpenFolder(); 3921 if (openFolder != null) { 3922 openFolder.completeDragExit(); 3923 } 3924 } 3925 3926 @Override 3927 public void scrollRight() { 3928 if (!isSmall() && !mIsSwitchingState) { 3929 super.scrollRight(); 3930 } 3931 Folder openFolder = getOpenFolder(); 3932 if (openFolder != null) { 3933 openFolder.completeDragExit(); 3934 } 3935 } 3936 3937 @Override 3938 public boolean onEnterScrollArea(int x, int y, int direction) { 3939 // Ignore the scroll area if we are dragging over the hot seat 3940 boolean isPortrait = !LauncherAppState.isScreenLandscape(getContext()); 3941 if (mLauncher.getHotseat() != null && isPortrait) { 3942 Rect r = new Rect(); 3943 mLauncher.getHotseat().getHitRect(r); 3944 if (r.contains(x, y)) { 3945 return false; 3946 } 3947 } 3948 3949 boolean result = false; 3950 if (!isSmall() && !mIsSwitchingState && getOpenFolder() == null) { 3951 mInScrollArea = true; 3952 3953 final int page = getNextPage() + 3954 (direction == DragController.SCROLL_LEFT ? -1 : 1); 3955 // We always want to exit the current layout to ensure parity of enter / exit 3956 setCurrentDropLayout(null); 3957 3958 if (0 <= page && page < getChildCount()) { 3959 // Ensure that we are not dragging over to the custom content screen 3960 if (getScreenIdForPageIndex(page) == CUSTOM_CONTENT_SCREEN_ID) { 3961 return false; 3962 } 3963 3964 CellLayout layout = (CellLayout) getChildAt(page); 3965 setCurrentDragOverlappingLayout(layout); 3966 3967 // Workspace is responsible for drawing the edge glow on adjacent pages, 3968 // so we need to redraw the workspace when this may have changed. 3969 invalidate(); 3970 result = true; 3971 } 3972 } 3973 return result; 3974 } 3975 3976 @Override 3977 public boolean onExitScrollArea() { 3978 boolean result = false; 3979 if (mInScrollArea) { 3980 invalidate(); 3981 CellLayout layout = getCurrentDropLayout(); 3982 setCurrentDropLayout(layout); 3983 setCurrentDragOverlappingLayout(layout); 3984 3985 result = true; 3986 mInScrollArea = false; 3987 } 3988 return result; 3989 } 3990 3991 private void onResetScrollArea() { 3992 setCurrentDragOverlappingLayout(null); 3993 mInScrollArea = false; 3994 } 3995 3996 /** 3997 * Returns a specific CellLayout 3998 */ 3999 CellLayout getParentCellLayoutForView(View v) { 4000 ArrayList<CellLayout> layouts = getWorkspaceAndHotseatCellLayouts(); 4001 for (CellLayout layout : layouts) { 4002 if (layout.getShortcutsAndWidgets().indexOfChild(v) > -1) { 4003 return layout; 4004 } 4005 } 4006 return null; 4007 } 4008 4009 /** 4010 * Returns a list of all the CellLayouts in the workspace. 4011 */ 4012 ArrayList<CellLayout> getWorkspaceAndHotseatCellLayouts() { 4013 ArrayList<CellLayout> layouts = new ArrayList<CellLayout>(); 4014 int screenCount = getChildCount(); 4015 for (int screen = 0; screen < screenCount; screen++) { 4016 layouts.add(((CellLayout) getChildAt(screen))); 4017 } 4018 if (mLauncher.getHotseat() != null) { 4019 layouts.add(mLauncher.getHotseat().getLayout()); 4020 } 4021 return layouts; 4022 } 4023 4024 /** 4025 * We should only use this to search for specific children. Do not use this method to modify 4026 * ShortcutsAndWidgetsContainer directly. Includes ShortcutAndWidgetContainers from 4027 * the hotseat and workspace pages 4028 */ 4029 ArrayList<ShortcutAndWidgetContainer> getAllShortcutAndWidgetContainers() { 4030 ArrayList<ShortcutAndWidgetContainer> childrenLayouts = 4031 new ArrayList<ShortcutAndWidgetContainer>(); 4032 int screenCount = getChildCount(); 4033 for (int screen = 0; screen < screenCount; screen++) { 4034 childrenLayouts.add(((CellLayout) getChildAt(screen)).getShortcutsAndWidgets()); 4035 } 4036 if (mLauncher.getHotseat() != null) { 4037 childrenLayouts.add(mLauncher.getHotseat().getLayout().getShortcutsAndWidgets()); 4038 } 4039 return childrenLayouts; 4040 } 4041 4042 public Folder getFolderForTag(Object tag) { 4043 ArrayList<ShortcutAndWidgetContainer> childrenLayouts = 4044 getAllShortcutAndWidgetContainers(); 4045 for (ShortcutAndWidgetContainer layout: childrenLayouts) { 4046 int count = layout.getChildCount(); 4047 for (int i = 0; i < count; i++) { 4048 View child = layout.getChildAt(i); 4049 if (child instanceof Folder) { 4050 Folder f = (Folder) child; 4051 if (f.getInfo() == tag && f.getInfo().opened) { 4052 return f; 4053 } 4054 } 4055 } 4056 } 4057 return null; 4058 } 4059 4060 public View getViewForTag(Object tag) { 4061 ArrayList<ShortcutAndWidgetContainer> childrenLayouts = 4062 getAllShortcutAndWidgetContainers(); 4063 for (ShortcutAndWidgetContainer layout: childrenLayouts) { 4064 int count = layout.getChildCount(); 4065 for (int i = 0; i < count; i++) { 4066 View child = layout.getChildAt(i); 4067 if (child.getTag() == tag) { 4068 return child; 4069 } 4070 } 4071 } 4072 return null; 4073 } 4074 4075 void clearDropTargets() { 4076 ArrayList<ShortcutAndWidgetContainer> childrenLayouts = 4077 getAllShortcutAndWidgetContainers(); 4078 for (ShortcutAndWidgetContainer layout: childrenLayouts) { 4079 int childCount = layout.getChildCount(); 4080 for (int j = 0; j < childCount; j++) { 4081 View v = layout.getChildAt(j); 4082 if (v instanceof DropTarget) { 4083 mDragController.removeDropTarget((DropTarget) v); 4084 } 4085 } 4086 } 4087 } 4088 4089 // Removes ALL items that match a given package name, this is usually called when a package 4090 // has been removed and we want to remove all components (widgets, shortcuts, apps) that 4091 // belong to that package. 4092 void removeItemsByPackageName(final ArrayList<String> packages) { 4093 final HashSet<String> packageNames = new HashSet<String>(); 4094 packageNames.addAll(packages); 4095 4096 // Filter out all the ItemInfos that this is going to affect 4097 final HashSet<ItemInfo> infos = new HashSet<ItemInfo>(); 4098 final HashSet<ComponentName> cns = new HashSet<ComponentName>(); 4099 ArrayList<CellLayout> cellLayouts = getWorkspaceAndHotseatCellLayouts(); 4100 for (CellLayout layoutParent : cellLayouts) { 4101 ViewGroup layout = layoutParent.getShortcutsAndWidgets(); 4102 int childCount = layout.getChildCount(); 4103 for (int i = 0; i < childCount; ++i) { 4104 View view = layout.getChildAt(i); 4105 infos.add((ItemInfo) view.getTag()); 4106 } 4107 } 4108 LauncherModel.ItemInfoFilter filter = new LauncherModel.ItemInfoFilter() { 4109 @Override 4110 public boolean filterItem(ItemInfo parent, ItemInfo info, 4111 ComponentName cn) { 4112 if (packageNames.contains(cn.getPackageName())) { 4113 cns.add(cn); 4114 return true; 4115 } 4116 return false; 4117 } 4118 }; 4119 LauncherModel.filterItemInfos(infos, filter); 4120 4121 // Remove the affected components 4122 removeItemsByComponentName(cns); 4123 } 4124 4125 // Removes items that match the application info specified, when applications are removed 4126 // as a part of an update, this is called to ensure that other widgets and application 4127 // shortcuts are not removed. 4128 void removeItemsByApplicationInfo(final ArrayList<AppInfo> appInfos) { 4129 // Just create a hash table of all the specific components that this will affect 4130 HashSet<ComponentName> cns = new HashSet<ComponentName>(); 4131 for (AppInfo info : appInfos) { 4132 cns.add(info.componentName); 4133 } 4134 4135 // Remove all the things 4136 removeItemsByComponentName(cns); 4137 } 4138 4139 void removeItemsByComponentName(final HashSet<ComponentName> componentNames) { 4140 ArrayList<CellLayout> cellLayouts = getWorkspaceAndHotseatCellLayouts(); 4141 for (final CellLayout layoutParent: cellLayouts) { 4142 final ViewGroup layout = layoutParent.getShortcutsAndWidgets(); 4143 4144 final HashMap<ItemInfo, View> children = new HashMap<ItemInfo, View>(); 4145 for (int j = 0; j < layout.getChildCount(); j++) { 4146 final View view = layout.getChildAt(j); 4147 children.put((ItemInfo) view.getTag(), view); 4148 } 4149 4150 final ArrayList<View> childrenToRemove = new ArrayList<View>(); 4151 final HashMap<FolderInfo, ArrayList<ShortcutInfo>> folderAppsToRemove = 4152 new HashMap<FolderInfo, ArrayList<ShortcutInfo>>(); 4153 LauncherModel.ItemInfoFilter filter = new LauncherModel.ItemInfoFilter() { 4154 @Override 4155 public boolean filterItem(ItemInfo parent, ItemInfo info, 4156 ComponentName cn) { 4157 if (parent instanceof FolderInfo) { 4158 if (componentNames.contains(cn)) { 4159 FolderInfo folder = (FolderInfo) parent; 4160 ArrayList<ShortcutInfo> appsToRemove; 4161 if (folderAppsToRemove.containsKey(folder)) { 4162 appsToRemove = folderAppsToRemove.get(folder); 4163 } else { 4164 appsToRemove = new ArrayList<ShortcutInfo>(); 4165 folderAppsToRemove.put(folder, appsToRemove); 4166 } 4167 appsToRemove.add((ShortcutInfo) info); 4168 return true; 4169 } 4170 } else { 4171 if (componentNames.contains(cn)) { 4172 childrenToRemove.add(children.get(info)); 4173 return true; 4174 } 4175 } 4176 return false; 4177 } 4178 }; 4179 LauncherModel.filterItemInfos(children.keySet(), filter); 4180 4181 // Remove all the apps from their folders 4182 for (FolderInfo folder : folderAppsToRemove.keySet()) { 4183 ArrayList<ShortcutInfo> appsToRemove = folderAppsToRemove.get(folder); 4184 for (ShortcutInfo info : appsToRemove) { 4185 folder.remove(info); 4186 } 4187 } 4188 4189 // Remove all the other children 4190 for (View child : childrenToRemove) { 4191 // Note: We can not remove the view directly from CellLayoutChildren as this 4192 // does not re-mark the spaces as unoccupied. 4193 layoutParent.removeViewInLayout(child); 4194 if (child instanceof DropTarget) { 4195 mDragController.removeDropTarget((DropTarget) child); 4196 } 4197 } 4198 4199 if (childrenToRemove.size() > 0) { 4200 layout.requestLayout(); 4201 layout.invalidate(); 4202 } 4203 } 4204 4205 // Strip all the empty screens 4206 stripEmptyScreens(); 4207 } 4208 4209 void updateShortcuts(ArrayList<AppInfo> apps) { 4210 ArrayList<ShortcutAndWidgetContainer> childrenLayouts = getAllShortcutAndWidgetContainers(); 4211 for (ShortcutAndWidgetContainer layout: childrenLayouts) { 4212 int childCount = layout.getChildCount(); 4213 for (int j = 0; j < childCount; j++) { 4214 final View view = layout.getChildAt(j); 4215 Object tag = view.getTag(); 4216 4217 if (LauncherModel.isShortcutInfoUpdateable((ItemInfo) tag)) { 4218 ShortcutInfo info = (ShortcutInfo) tag; 4219 4220 final Intent intent = info.intent; 4221 final ComponentName name = intent.getComponent(); 4222 final int appCount = apps.size(); 4223 for (int k = 0; k < appCount; k++) { 4224 AppInfo app = apps.get(k); 4225 if (app.componentName.equals(name)) { 4226 BubbleTextView shortcut = (BubbleTextView) view; 4227 info.updateIcon(mIconCache); 4228 info.title = app.title.toString(); 4229 shortcut.applyFromShortcutInfo(info, mIconCache); 4230 } 4231 } 4232 } 4233 } 4234 } 4235 } 4236 4237 private void moveToScreen(int page, boolean animate) { 4238 if (!isSmall()) { 4239 if (animate) { 4240 snapToPage(page); 4241 } else { 4242 setCurrentPage(page); 4243 } 4244 } 4245 View child = getChildAt(page); 4246 if (child != null) { 4247 child.requestFocus(); 4248 } 4249 } 4250 4251 void moveToDefaultScreen(boolean animate) { 4252 moveToScreen(mDefaultPage, animate); 4253 } 4254 4255 void moveToCustomContentScreen(boolean animate) { 4256 if (hasCustomContent()) { 4257 int ccIndex = getPageIndexForScreenId(CUSTOM_CONTENT_SCREEN_ID); 4258 if (animate) { 4259 snapToPage(ccIndex); 4260 } else { 4261 setCurrentPage(ccIndex); 4262 } 4263 View child = getChildAt(ccIndex); 4264 if (child != null) { 4265 child.requestFocus(); 4266 } 4267 } 4268 } 4269 4270 @Override 4271 protected PageIndicator.PageMarkerResources getPageIndicatorMarker(int pageIndex) { 4272 long screenId = getScreenIdForPageIndex(pageIndex); 4273 if (screenId == EXTRA_EMPTY_SCREEN_ID) { 4274 int count = mScreenOrder.size() - (hasCustomContent() ? 1 : 0); 4275 if (count > 1) { 4276 return new PageIndicator.PageMarkerResources(R.drawable.ic_pageindicator_add, 4277 R.drawable.ic_pageindicator_add); 4278 } 4279 } 4280 4281 return super.getPageIndicatorMarker(pageIndex); 4282 } 4283 4284 @Override 4285 public void syncPages() { 4286 } 4287 4288 @Override 4289 public void syncPageItems(int page, boolean immediate) { 4290 } 4291 4292 protected String getCurrentPageDescription() { 4293 int page = (mNextPage != INVALID_PAGE) ? mNextPage : mCurrentPage; 4294 return String.format(getContext().getString(R.string.workspace_scroll_format), 4295 page + 1, getChildCount()); 4296 } 4297 4298 public void getLocationInDragLayer(int[] loc) { 4299 mLauncher.getDragLayer().getLocationInDragLayer(this, loc); 4300 } 4301} 4302