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 17 package com.android.launcher2; 18 19 import android.animation.Animator; 20 import android.animation.AnimatorSet; 21 import android.animation.ObjectAnimator; 22 import android.animation.TimeInterpolator; 23 import android.animation.ValueAnimator; 24 import android.animation.ValueAnimator.AnimatorUpdateListener; 25 import android.app.WallpaperManager; 26 import android.appwidget.AppWidgetHostView; 27 import android.appwidget.AppWidgetManager; 28 import android.appwidget.AppWidgetProviderInfo; 29 import android.content.ComponentName; 30 import android.content.Context; 31 import android.content.Intent; 32 import android.content.SharedPreferences; 33 import android.content.res.Resources; 34 import android.content.res.TypedArray; 35 import android.graphics.Bitmap; 36 import android.graphics.Camera; 37 import android.graphics.Canvas; 38 import android.graphics.Matrix; 39 import android.graphics.Paint; 40 import android.graphics.Point; 41 import android.graphics.PointF; 42 import android.graphics.Rect; 43 import android.graphics.Region.Op; 44 import android.graphics.drawable.Drawable; 45 import android.os.IBinder; 46 import android.os.Parcelable; 47 import android.util.AttributeSet; 48 import android.util.DisplayMetrics; 49 import android.util.Log; 50 import android.util.SparseArray; 51 import android.view.Display; 52 import android.view.MotionEvent; 53 import android.view.View; 54 import android.view.ViewGroup; 55 import android.view.animation.DecelerateInterpolator; 56 import android.widget.ImageView; 57 import android.widget.TextView; 58 59 import com.android.launcher.R; 60 import com.android.launcher2.FolderIcon.FolderRingAnimator; 61 import com.android.launcher2.LauncherSettings.Favorites; 62 63 import java.net.URISyntaxException; 64 import java.util.ArrayList; 65 import java.util.HashSet; 66 import java.util.Iterator; 67 import java.util.Set; 68 69 /** 70 * The workspace is a wide area with a wallpaper and a finite number of pages. 71 * Each page contains a number of icons, folders or widgets the user can 72 * interact with. A workspace is meant to be used with a fixed width only. 73 */ 74 public class Workspace extends SmoothPagedView 75 implements DropTarget, DragSource, DragScroller, View.OnTouchListener, 76 DragController.DragListener, LauncherTransitionable, ViewGroup.OnHierarchyChangeListener { 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 // These animators are used to fade the children's outlines 91 private ObjectAnimator mChildrenOutlineFadeInAnimation; 92 private ObjectAnimator mChildrenOutlineFadeOutAnimation; 93 private float mChildrenOutlineAlpha = 0; 94 95 // These properties refer to the background protection gradient used for AllApps and Customize 96 private ValueAnimator mBackgroundFadeInAnimation; 97 private ValueAnimator mBackgroundFadeOutAnimation; 98 private Drawable mBackground; 99 boolean mDrawBackground = true; 100 private float mBackgroundAlpha = 0; 101 private float mOverScrollMaxBackgroundAlpha = 0.0f; 102 103 private float mWallpaperScrollRatio = 1.0f; 104 105 private final WallpaperManager mWallpaperManager; 106 private IBinder mWindowToken; 107 private static final float WALLPAPER_SCREENS_SPAN = 2f; 108 109 private int mDefaultPage; 110 111 /** 112 * CellInfo for the cell that is currently being dragged 113 */ 114 private CellLayout.CellInfo mDragInfo; 115 116 /** 117 * Target drop area calculated during last acceptDrop call. 118 */ 119 private int[] mTargetCell = new int[2]; 120 private int mDragOverX = -1; 121 private int mDragOverY = -1; 122 123 static Rect mLandscapeCellLayoutMetrics = null; 124 static Rect mPortraitCellLayoutMetrics = null; 125 126 /** 127 * The CellLayout that is currently being dragged over 128 */ 129 private CellLayout mDragTargetLayout = null; 130 /** 131 * The CellLayout that we will show as glowing 132 */ 133 private CellLayout mDragOverlappingLayout = null; 134 135 /** 136 * The CellLayout which will be dropped to 137 */ 138 private CellLayout mDropToLayout = null; 139 140 private Launcher mLauncher; 141 private IconCache mIconCache; 142 private DragController mDragController; 143 144 // These are temporary variables to prevent having to allocate a new object just to 145 // return an (x, y) value from helper functions. Do NOT use them to maintain other state. 146 private int[] mTempCell = new int[2]; 147 private int[] mTempEstimate = new int[2]; 148 private float[] mDragViewVisualCenter = new float[2]; 149 private float[] mTempDragCoordinates = new float[2]; 150 private float[] mTempCellLayoutCenterCoordinates = new float[2]; 151 private float[] mTempDragBottomRightCoordinates = new float[2]; 152 private Matrix mTempInverseMatrix = new Matrix(); 153 154 private SpringLoadedDragController mSpringLoadedDragController; 155 private float mSpringLoadedShrinkFactor; 156 157 private static final int DEFAULT_CELL_COUNT_X = 4; 158 private static final int DEFAULT_CELL_COUNT_Y = 4; 159 160 // State variable that indicates whether the pages are small (ie when you're 161 // in all apps or customize mode) 162 163 enum State { NORMAL, SPRING_LOADED, SMALL }; 164 private State mState = State.NORMAL; 165 private boolean mIsSwitchingState = false; 166 167 boolean mAnimatingViewIntoPlace = false; 168 boolean mIsDragOccuring = false; 169 boolean mChildrenLayersEnabled = true; 170 171 /** Is the user is dragging an item near the edge of a page? */ 172 private boolean mInScrollArea = false; 173 174 private final HolographicOutlineHelper mOutlineHelper = new HolographicOutlineHelper(); 175 private Bitmap mDragOutline = null; 176 private final Rect mTempRect = new Rect(); 177 private final int[] mTempXY = new int[2]; 178 private float mOverscrollFade = 0; 179 private boolean mOverscrollTransformsSet; 180 public static final int DRAG_BITMAP_PADDING = 2; 181 private boolean mWorkspaceFadeInAdjacentScreens; 182 183 // Camera and Matrix used to determine the final position of a neighboring CellLayout 184 private final Matrix mMatrix = new Matrix(); 185 private final Camera mCamera = new Camera(); 186 private final float mTempFloat2[] = new float[2]; 187 188 enum WallpaperVerticalOffset { TOP, MIDDLE, BOTTOM }; 189 int mWallpaperWidth; 190 int mWallpaperHeight; 191 WallpaperOffsetInterpolator mWallpaperOffset; 192 boolean mUpdateWallpaperOffsetImmediately = false; 193 private Runnable mDelayedResizeRunnable; 194 private Runnable mDelayedSnapToPageRunnable; 195 private Point mDisplaySize = new Point(); 196 private boolean mIsStaticWallpaper; 197 private int mWallpaperTravelWidth; 198 private int mSpringLoadedPageSpacing; 199 private int mCameraDistance; 200 201 // Variables relating to the creation of user folders by hovering shortcuts over shortcuts 202 private static final int FOLDER_CREATION_TIMEOUT = 0; 203 private static final int REORDER_TIMEOUT = 250; 204 private final Alarm mFolderCreationAlarm = new Alarm(); 205 private final Alarm mReorderAlarm = new Alarm(); 206 private FolderRingAnimator mDragFolderRingAnimator = null; 207 private FolderIcon mDragOverFolderIcon = null; 208 private boolean mCreateUserFolderOnDrop = false; 209 private boolean mAddToExistingFolderOnDrop = false; 210 private DropTarget.DragEnforcer mDragEnforcer; 211 private float mMaxDistanceForFolderCreation; 212 213 // Variables relating to touch disambiguation (scrolling workspace vs. scrolling a widget) 214 private float mXDown; 215 private float mYDown; 216 final static float START_DAMPING_TOUCH_SLOP_ANGLE = (float) Math.PI / 6; 217 final static float MAX_SWIPE_ANGLE = (float) Math.PI / 3; 218 final static float TOUCH_SLOP_DAMPING_FACTOR = 4; 219 220 // Relating to the animation of items being dropped externally 221 public static final int ANIMATE_INTO_POSITION_AND_DISAPPEAR = 0; 222 public static final int ANIMATE_INTO_POSITION_AND_REMAIN = 1; 223 public static final int ANIMATE_INTO_POSITION_AND_RESIZE = 2; 224 public static final int COMPLETE_TWO_STAGE_WIDGET_DROP_ANIMATION = 3; 225 public static final int CANCEL_TWO_STAGE_WIDGET_DROP_ANIMATION = 4; 226 227 // Related to dragging, folder creation and reordering 228 private static final int DRAG_MODE_NONE = 0; 229 private static final int DRAG_MODE_CREATE_FOLDER = 1; 230 private static final int DRAG_MODE_ADD_TO_FOLDER = 2; 231 private static final int DRAG_MODE_REORDER = 3; 232 private int mDragMode = DRAG_MODE_NONE; 233 private int mLastReorderX = -1; 234 private int mLastReorderY = -1; 235 236 private SparseArray<Parcelable> mSavedStates; 237 private final ArrayList<Integer> mRestoredPages = new ArrayList<Integer>(); 238 239 // These variables are used for storing the initial and final values during workspace animations 240 private int mSavedScrollX; 241 private float mSavedRotationY; 242 private float mSavedTranslationX; 243 private float mCurrentScaleX; 244 private float mCurrentScaleY; 245 private float mCurrentRotationY; 246 private float mCurrentTranslationX; 247 private float mCurrentTranslationY; 248 private float[] mOldTranslationXs; 249 private float[] mOldTranslationYs; 250 private float[] mOldScaleXs; 251 private float[] mOldScaleYs; 252 private float[] mOldBackgroundAlphas; 253 private float[] mOldAlphas; 254 private float[] mNewTranslationXs; 255 private float[] mNewTranslationYs; 256 private float[] mNewScaleXs; 257 private float[] mNewScaleYs; 258 private float[] mNewBackgroundAlphas; 259 private float[] mNewAlphas; 260 private float[] mNewRotationYs; 261 private float mTransitionProgress; 262 263 /** 264 * Used to inflate the Workspace from XML. 265 * 266 * @param context The application's context. 267 * @param attrs The attributes set containing the Workspace's customization values. 268 */ 269 public Workspace(Context context, AttributeSet attrs) { 270 this(context, attrs, 0); 271 } 272 273 /** 274 * Used to inflate the Workspace from XML. 275 * 276 * @param context The application's context. 277 * @param attrs The attributes set containing the Workspace's customization values. 278 * @param defStyle Unused. 279 */ 280 public Workspace(Context context, AttributeSet attrs, int defStyle) { 281 super(context, attrs, defStyle); 282 mContentIsRefreshable = false; 283 284 mDragEnforcer = new DropTarget.DragEnforcer(context); 285 // With workspace, data is available straight from the get-go 286 setDataIsReady(); 287 288 final Resources res = getResources(); 289 mWorkspaceFadeInAdjacentScreens = res.getBoolean(R.bool.config_workspaceFadeAdjacentScreens); 290 mFadeInAdjacentScreens = false; 291 mWallpaperManager = WallpaperManager.getInstance(context); 292 293 int cellCountX = DEFAULT_CELL_COUNT_X; 294 int cellCountY = DEFAULT_CELL_COUNT_Y; 295 296 TypedArray a = context.obtainStyledAttributes(attrs, 297 R.styleable.Workspace, defStyle, 0); 298 299 if (LauncherApplication.isScreenLarge()) { 300 // Determine number of rows/columns dynamically 301 // TODO: This code currently fails on tablets with an aspect ratio < 1.3. 302 // Around that ratio we should make cells the same size in portrait and 303 // landscape 304 TypedArray actionBarSizeTypedArray = 305 context.obtainStyledAttributes(new int[] { android.R.attr.actionBarSize }); 306 DisplayMetrics displayMetrics = res.getDisplayMetrics(); 307 final float actionBarHeight = actionBarSizeTypedArray.getDimension(0, 0f); 308 final float systemBarHeight = res.getDimension(R.dimen.status_bar_height); 309 final float smallestScreenDim = res.getConfiguration().smallestScreenWidthDp * 310 displayMetrics.density; 311 312 cellCountX = 1; 313 while (CellLayout.widthInPortrait(res, cellCountX + 1) <= smallestScreenDim) { 314 cellCountX++; 315 } 316 317 cellCountY = 1; 318 while (actionBarHeight + CellLayout.heightInLandscape(res, cellCountY + 1) 319 <= smallestScreenDim - systemBarHeight) { 320 cellCountY++; 321 } 322 } 323 324 mSpringLoadedShrinkFactor = 325 res.getInteger(R.integer.config_workspaceSpringLoadShrinkPercentage) / 100.0f; 326 mSpringLoadedPageSpacing = 327 res.getDimensionPixelSize(R.dimen.workspace_spring_loaded_page_spacing); 328 mCameraDistance = res.getInteger(R.integer.config_cameraDistance); 329 330 // if the value is manually specified, use that instead 331 cellCountX = a.getInt(R.styleable.Workspace_cellCountX, cellCountX); 332 cellCountY = a.getInt(R.styleable.Workspace_cellCountY, cellCountY); 333 mDefaultPage = a.getInt(R.styleable.Workspace_defaultScreen, 1); 334 a.recycle(); 335 336 setOnHierarchyChangeListener(this); 337 338 LauncherModel.updateWorkspaceLayoutCells(cellCountX, cellCountY); 339 setHapticFeedbackEnabled(false); 340 341 mLauncher = (Launcher) context; 342 initWorkspace(); 343 344 // Disable multitouch across the workspace/all apps/customize tray 345 setMotionEventSplittingEnabled(true); 346 347 // Unless otherwise specified this view is important for accessibility. 348 if (getImportantForAccessibility() == View.IMPORTANT_FOR_ACCESSIBILITY_AUTO) { 349 setImportantForAccessibility(View.IMPORTANT_FOR_ACCESSIBILITY_YES); 350 } 351 } 352 353 // estimate the size of a widget with spans hSpan, vSpan. return MAX_VALUE for each 354 // dimension if unsuccessful 355 public int[] estimateItemSize(int hSpan, int vSpan, 356 ItemInfo itemInfo, boolean springLoaded) { 357 int[] size = new int[2]; 358 if (getChildCount() > 0) { 359 CellLayout cl = (CellLayout) mLauncher.getWorkspace().getChildAt(0); 360 Rect r = estimateItemPosition(cl, itemInfo, 0, 0, hSpan, vSpan); 361 size[0] = r.width(); 362 size[1] = r.height(); 363 if (springLoaded) { 364 size[0] *= mSpringLoadedShrinkFactor; 365 size[1] *= mSpringLoadedShrinkFactor; 366 } 367 return size; 368 } else { 369 size[0] = Integer.MAX_VALUE; 370 size[1] = Integer.MAX_VALUE; 371 return size; 372 } 373 } 374 public Rect estimateItemPosition(CellLayout cl, ItemInfo pendingInfo, 375 int hCell, int vCell, int hSpan, int vSpan) { 376 Rect r = new Rect(); 377 cl.cellToRect(hCell, vCell, hSpan, vSpan, r); 378 return r; 379 } 380 381 public void buildPageHardwareLayers() { 382 if (getWindowToken() != null) { 383 final int childCount = getChildCount(); 384 for (int i = 0; i < childCount; i++) { 385 CellLayout cl = (CellLayout) getChildAt(i); 386 cl.getShortcutsAndWidgets().buildLayer(); 387 } 388 } 389 } 390 391 public void onDragStart(DragSource source, Object info, int dragAction) { 392 mIsDragOccuring = true; 393 updateChildrenLayersEnabled(); 394 mLauncher.lockScreenOrientation(); 395 setChildrenBackgroundAlphaMultipliers(1f); 396 // Prevent any Un/InstallShortcutReceivers from updating the db while we are dragging 397 InstallShortcutReceiver.enableInstallQueue(); 398 UninstallShortcutReceiver.enableUninstallQueue(); 399 } 400 401 public void onDragEnd() { 402 mIsDragOccuring = false; 403 updateChildrenLayersEnabled(); 404 mLauncher.unlockScreenOrientation(false); 405 406 // Re-enable any Un/InstallShortcutReceiver and now process any queued items 407 InstallShortcutReceiver.disableAndFlushInstallQueue(getContext()); 408 UninstallShortcutReceiver.disableAndFlushUninstallQueue(getContext()); 409 } 410 411 /** 412 * Initializes various states for this workspace. 413 */ 414 protected void initWorkspace() { 415 Context context = getContext(); 416 mCurrentPage = mDefaultPage; 417 Launcher.setScreen(mCurrentPage); 418 LauncherApplication app = (LauncherApplication)context.getApplicationContext(); 419 mIconCache = app.getIconCache(); 420 setWillNotDraw(false); 421 setChildrenDrawnWithCacheEnabled(true); 422 423 final Resources res = getResources(); 424 try { 425 mBackground = res.getDrawable(R.drawable.apps_customize_bg); 426 } catch (Resources.NotFoundException e) { 427 // In this case, we will skip drawing background protection 428 } 429 430 mWallpaperOffset = new WallpaperOffsetInterpolator(); 431 Display display = mLauncher.getWindowManager().getDefaultDisplay(); 432 display.getSize(mDisplaySize); 433 mWallpaperTravelWidth = (int) (mDisplaySize.x * 434 wallpaperTravelToScreenWidthRatio(mDisplaySize.x, mDisplaySize.y)); 435 436 mMaxDistanceForFolderCreation = (0.55f * res.getDimensionPixelSize(R.dimen.app_icon_size)); 437 mFlingThresholdVelocity = (int) (FLING_THRESHOLD_VELOCITY * mDensity); 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.enableHardwareLayers(); 454 cl.setContentDescription(getContext().getString( 455 R.string.workspace_description_format, getChildCount())); 456 } 457 458 @Override 459 public void onChildViewRemoved(View parent, View child) { 460 } 461 462 protected boolean shouldDrawChild(View child) { 463 final CellLayout cl = (CellLayout) child; 464 return super.shouldDrawChild(child) && 465 (cl.getShortcutsAndWidgets().getAlpha() > 0 || 466 cl.getBackgroundAlpha() > 0); 467 } 468 469 /** 470 * @return The open folder on the current screen, or null if there is none 471 */ 472 Folder getOpenFolder() { 473 DragLayer dragLayer = mLauncher.getDragLayer(); 474 int count = dragLayer.getChildCount(); 475 for (int i = 0; i < count; i++) { 476 View child = dragLayer.getChildAt(i); 477 if (child instanceof Folder) { 478 Folder folder = (Folder) child; 479 if (folder.getInfo().opened) 480 return folder; 481 } 482 } 483 return null; 484 } 485 486 boolean isTouchActive() { 487 return mTouchState != TOUCH_STATE_REST; 488 } 489 490 /** 491 * Adds the specified child in the specified screen. The position and dimension of 492 * the child are defined by x, y, spanX and spanY. 493 * 494 * @param child The child to add in one of the workspace's screens. 495 * @param screen The screen in which to add the child. 496 * @param x The X position of the child in the screen's grid. 497 * @param y The Y position of the child in the screen's grid. 498 * @param spanX The number of cells spanned horizontally by the child. 499 * @param spanY The number of cells spanned vertically by the child. 500 */ 501 void addInScreen(View child, long container, int screen, int x, int y, int spanX, int spanY) { 502 addInScreen(child, container, screen, x, y, spanX, spanY, false); 503 } 504 505 /** 506 * Adds the specified child in the specified screen. The position and dimension of 507 * the child are defined by x, y, spanX and spanY. 508 * 509 * @param child The child to add in one of the workspace's screens. 510 * @param screen The screen in which to add the child. 511 * @param x The X position of the child in the screen's grid. 512 * @param y The Y position of the child in the screen's grid. 513 * @param spanX The number of cells spanned horizontally by the child. 514 * @param spanY The number of cells spanned vertically by the child. 515 * @param insert When true, the child is inserted at the beginning of the children list. 516 */ 517 void addInScreen(View child, long container, int screen, int x, int y, int spanX, int spanY, 518 boolean insert) { 519 if (container == LauncherSettings.Favorites.CONTAINER_DESKTOP) { 520 if (screen < 0 || screen >= getChildCount()) { 521 Log.e(TAG, "The screen must be >= 0 and < " + getChildCount() 522 + " (was " + screen + "); skipping child"); 523 return; 524 } 525 } 526 527 final CellLayout layout; 528 if (container == LauncherSettings.Favorites.CONTAINER_HOTSEAT) { 529 layout = mLauncher.getHotseat().getLayout(); 530 child.setOnKeyListener(null); 531 532 // Hide folder title in the hotseat 533 if (child instanceof FolderIcon) { 534 ((FolderIcon) child).setTextVisible(false); 535 } 536 537 if (screen < 0) { 538 screen = mLauncher.getHotseat().getOrderInHotseat(x, y); 539 } else { 540 // Note: We do this to ensure that the hotseat is always laid out in the orientation 541 // of the hotseat in order regardless of which orientation they were added 542 x = mLauncher.getHotseat().getCellXFromOrder(screen); 543 y = mLauncher.getHotseat().getCellYFromOrder(screen); 544 } 545 } else { 546 // Show folder title if not in the hotseat 547 if (child instanceof FolderIcon) { 548 ((FolderIcon) child).setTextVisible(true); 549 } 550 551 layout = (CellLayout) getChildAt(screen); 552 child.setOnKeyListener(new IconKeyEventListener()); 553 } 554 555 LayoutParams genericLp = child.getLayoutParams(); 556 CellLayout.LayoutParams lp; 557 if (genericLp == null || !(genericLp instanceof CellLayout.LayoutParams)) { 558 lp = new CellLayout.LayoutParams(x, y, spanX, spanY); 559 } else { 560 lp = (CellLayout.LayoutParams) genericLp; 561 lp.cellX = x; 562 lp.cellY = y; 563 lp.cellHSpan = spanX; 564 lp.cellVSpan = spanY; 565 } 566 567 if (spanX < 0 && spanY < 0) { 568 lp.isLockedToGrid = false; 569 } 570 571 // Get the canonical child id to uniquely represent this view in this screen 572 int childId = LauncherModel.getCellLayoutChildId(container, screen, x, y, spanX, spanY); 573 boolean markCellsAsOccupied = !(child instanceof Folder); 574 if (!layout.addViewToCellLayout(child, insert ? 0 : -1, childId, lp, markCellsAsOccupied)) { 575 // TODO: This branch occurs when the workspace is adding views 576 // outside of the defined grid 577 // maybe we should be deleting these items from the LauncherModel? 578 Log.w(TAG, "Failed to add to item at (" + lp.cellX + "," + lp.cellY + ") to CellLayout"); 579 } 580 581 if (!(child instanceof Folder)) { 582 child.setHapticFeedbackEnabled(false); 583 child.setOnLongClickListener(mLongClickListener); 584 } 585 if (child instanceof DropTarget) { 586 mDragController.addDropTarget((DropTarget) child); 587 } 588 } 589 590 /** 591 * Check if the point (x, y) hits a given page. 592 */ 593 private boolean hitsPage(int index, float x, float y) { 594 final View page = getChildAt(index); 595 if (page != null) { 596 float[] localXY = { x, y }; 597 mapPointFromSelfToChild(page, localXY); 598 return (localXY[0] >= 0 && localXY[0] < page.getWidth() 599 && localXY[1] >= 0 && localXY[1] < page.getHeight()); 600 } 601 return false; 602 } 603 604 @Override 605 protected boolean hitsPreviousPage(float x, float y) { 606 // mNextPage is set to INVALID_PAGE whenever we are stationary. 607 // Calculating "next page" this way ensures that you scroll to whatever page you tap on 608 final int current = (mNextPage == INVALID_PAGE) ? mCurrentPage : mNextPage; 609 610 // Only allow tap to next page on large devices, where there's significant margin outside 611 // the active workspace 612 return LauncherApplication.isScreenLarge() && hitsPage(current - 1, x, y); 613 } 614 615 @Override 616 protected boolean hitsNextPage(float x, float y) { 617 // mNextPage is set to INVALID_PAGE whenever we are stationary. 618 // Calculating "next page" this way ensures that you scroll to whatever page you tap on 619 final int current = (mNextPage == INVALID_PAGE) ? mCurrentPage : mNextPage; 620 621 // Only allow tap to next page on large devices, where there's significant margin outside 622 // the active workspace 623 return LauncherApplication.isScreenLarge() && hitsPage(current + 1, x, y); 624 } 625 626 /** 627 * Called directly from a CellLayout (not by the framework), after we've been added as a 628 * listener via setOnInterceptTouchEventListener(). This allows us to tell the CellLayout 629 * that it should intercept touch events, which is not something that is normally supported. 630 */ 631 @Override 632 public boolean onTouch(View v, MotionEvent event) { 633 return (isSmall() || !isFinishedSwitchingState()); 634 } 635 636 public boolean isSwitchingState() { 637 return mIsSwitchingState; 638 } 639 640 /** This differs from isSwitchingState in that we take into account how far the transition 641 * has completed. */ 642 public boolean isFinishedSwitchingState() { 643 return !mIsSwitchingState || (mTransitionProgress > 0.5f); 644 } 645 646 protected void onWindowVisibilityChanged (int visibility) { 647 mLauncher.onWindowVisibilityChanged(visibility); 648 } 649 650 @Override 651 public boolean dispatchUnhandledMove(View focused, int direction) { 652 if (isSmall() || !isFinishedSwitchingState()) { 653 // when the home screens are shrunken, shouldn't allow side-scrolling 654 return false; 655 } 656 return super.dispatchUnhandledMove(focused, direction); 657 } 658 659 @Override 660 public boolean onInterceptTouchEvent(MotionEvent ev) { 661 switch (ev.getAction() & MotionEvent.ACTION_MASK) { 662 case MotionEvent.ACTION_DOWN: 663 mXDown = ev.getX(); 664 mYDown = ev.getY(); 665 break; 666 case MotionEvent.ACTION_POINTER_UP: 667 case MotionEvent.ACTION_UP: 668 if (mTouchState == TOUCH_STATE_REST) { 669 final CellLayout currentPage = (CellLayout) getChildAt(mCurrentPage); 670 if (!currentPage.lastDownOnOccupiedCell()) { 671 onWallpaperTap(ev); 672 } 673 } 674 } 675 return super.onInterceptTouchEvent(ev); 676 } 677 678 protected void reinflateWidgetsIfNecessary() { 679 final int clCount = getChildCount(); 680 for (int i = 0; i < clCount; i++) { 681 CellLayout cl = (CellLayout) getChildAt(i); 682 ShortcutAndWidgetContainer swc = cl.getShortcutsAndWidgets(); 683 final int itemCount = swc.getChildCount(); 684 for (int j = 0; j < itemCount; j++) { 685 View v = swc.getChildAt(j); 686 687 if (v.getTag() instanceof LauncherAppWidgetInfo) { 688 LauncherAppWidgetInfo info = (LauncherAppWidgetInfo) v.getTag(); 689 LauncherAppWidgetHostView lahv = (LauncherAppWidgetHostView) info.hostView; 690 if (lahv != null && lahv.orientationChangedSincedInflation()) { 691 mLauncher.removeAppWidget(info); 692 // Remove the current widget which is inflated with the wrong orientation 693 cl.removeView(lahv); 694 mLauncher.bindAppWidget(info); 695 } 696 } 697 } 698 } 699 } 700 701 @Override 702 protected void determineScrollingStart(MotionEvent ev) { 703 if (isSmall()) return; 704 if (!isFinishedSwitchingState()) return; 705 706 float deltaX = Math.abs(ev.getX() - mXDown); 707 float deltaY = Math.abs(ev.getY() - mYDown); 708 709 if (Float.compare(deltaX, 0f) == 0) return; 710 711 float slope = deltaY / deltaX; 712 float theta = (float) Math.atan(slope); 713 714 if (deltaX > mTouchSlop || deltaY > mTouchSlop) { 715 cancelCurrentPageLongPress(); 716 } 717 718 if (theta > MAX_SWIPE_ANGLE) { 719 // Above MAX_SWIPE_ANGLE, we don't want to ever start scrolling the workspace 720 return; 721 } else if (theta > START_DAMPING_TOUCH_SLOP_ANGLE) { 722 // Above START_DAMPING_TOUCH_SLOP_ANGLE and below MAX_SWIPE_ANGLE, we want to 723 // increase the touch slop to make it harder to begin scrolling the workspace. This 724 // results in vertically scrolling widgets to more easily. The higher the angle, the 725 // more we increase touch slop. 726 theta -= START_DAMPING_TOUCH_SLOP_ANGLE; 727 float extraRatio = (float) 728 Math.sqrt((theta / (MAX_SWIPE_ANGLE - START_DAMPING_TOUCH_SLOP_ANGLE))); 729 super.determineScrollingStart(ev, 1 + TOUCH_SLOP_DAMPING_FACTOR * extraRatio); 730 } else { 731 // Below START_DAMPING_TOUCH_SLOP_ANGLE, we don't do anything special 732 super.determineScrollingStart(ev); 733 } 734 } 735 736 @Override 737 protected boolean isScrollingIndicatorEnabled() { 738 return super.isScrollingIndicatorEnabled() && (mState != State.SPRING_LOADED); 739 } 740 741 protected void onPageBeginMoving() { 742 super.onPageBeginMoving(); 743 744 if (isHardwareAccelerated()) { 745 updateChildrenLayersEnabled(); 746 } else { 747 if (mNextPage != INVALID_PAGE) { 748 // we're snapping to a particular screen 749 enableChildrenCache(mCurrentPage, mNextPage); 750 } else { 751 // this is when user is actively dragging a particular screen, they might 752 // swipe it either left or right (but we won't advance by more than one screen) 753 enableChildrenCache(mCurrentPage - 1, mCurrentPage + 1); 754 } 755 } 756 757 // Only show page outlines as we pan if we are on large screen 758 if (LauncherApplication.isScreenLarge()) { 759 showOutlines(); 760 mIsStaticWallpaper = mWallpaperManager.getWallpaperInfo() == null; 761 } 762 763 // If we are not fading in adjacent screens, we still need to restore the alpha in case the 764 // user scrolls while we are transitioning (should not affect dispatchDraw optimizations) 765 if (!mWorkspaceFadeInAdjacentScreens) { 766 for (int i = 0; i < getChildCount(); ++i) { 767 ((CellLayout) getPageAt(i)).setShortcutAndWidgetAlpha(1f); 768 } 769 } 770 771 // Show the scroll indicator as you pan the page 772 showScrollingIndicator(false); 773 } 774 775 protected void onPageEndMoving() { 776 super.onPageEndMoving(); 777 778 if (isHardwareAccelerated()) { 779 updateChildrenLayersEnabled(); 780 } else { 781 clearChildrenCache(); 782 } 783 784 785 if (mDragController.isDragging()) { 786 if (isSmall()) { 787 // If we are in springloaded mode, then force an event to check if the current touch 788 // is under a new page (to scroll to) 789 mDragController.forceMoveEvent(); 790 } 791 } else { 792 // If we are not mid-dragging, hide the page outlines if we are on a large screen 793 if (LauncherApplication.isScreenLarge()) { 794 hideOutlines(); 795 } 796 797 // Hide the scroll indicator as you pan the page 798 if (!mDragController.isDragging()) { 799 hideScrollingIndicator(false); 800 } 801 } 802 mOverScrollMaxBackgroundAlpha = 0.0f; 803 804 if (mDelayedResizeRunnable != null) { 805 mDelayedResizeRunnable.run(); 806 mDelayedResizeRunnable = null; 807 } 808 809 if (mDelayedSnapToPageRunnable != null) { 810 mDelayedSnapToPageRunnable.run(); 811 mDelayedSnapToPageRunnable = null; 812 } 813 } 814 815 @Override 816 protected void notifyPageSwitchListener() { 817 super.notifyPageSwitchListener(); 818 Launcher.setScreen(mCurrentPage); 819 }; 820 821 // As a ratio of screen height, the total distance we want the parallax effect to span 822 // horizontally 823 private float wallpaperTravelToScreenWidthRatio(int width, int height) { 824 float aspectRatio = width / (float) height; 825 826 // At an aspect ratio of 16/10, the wallpaper parallax effect should span 1.5 * screen width 827 // At an aspect ratio of 10/16, the wallpaper parallax effect should span 1.2 * screen width 828 // We will use these two data points to extrapolate how much the wallpaper parallax effect 829 // to span (ie travel) at any aspect ratio: 830 831 final float ASPECT_RATIO_LANDSCAPE = 16/10f; 832 final float ASPECT_RATIO_PORTRAIT = 10/16f; 833 final float WALLPAPER_WIDTH_TO_SCREEN_RATIO_LANDSCAPE = 1.5f; 834 final float WALLPAPER_WIDTH_TO_SCREEN_RATIO_PORTRAIT = 1.2f; 835 836 // To find out the desired width at different aspect ratios, we use the following two 837 // formulas, where the coefficient on x is the aspect ratio (width/height): 838 // (16/10)x + y = 1.5 839 // (10/16)x + y = 1.2 840 // We solve for x and y and end up with a final formula: 841 final float x = 842 (WALLPAPER_WIDTH_TO_SCREEN_RATIO_LANDSCAPE - WALLPAPER_WIDTH_TO_SCREEN_RATIO_PORTRAIT) / 843 (ASPECT_RATIO_LANDSCAPE - ASPECT_RATIO_PORTRAIT); 844 final float y = WALLPAPER_WIDTH_TO_SCREEN_RATIO_PORTRAIT - x * ASPECT_RATIO_PORTRAIT; 845 return x * aspectRatio + y; 846 } 847 848 // The range of scroll values for Workspace 849 private int getScrollRange() { 850 return getChildOffset(getChildCount() - 1) - getChildOffset(0); 851 } 852 853 protected void setWallpaperDimension() { 854 DisplayMetrics displayMetrics = new DisplayMetrics(); 855 mLauncher.getWindowManager().getDefaultDisplay().getRealMetrics(displayMetrics); 856 final int maxDim = Math.max(displayMetrics.widthPixels, displayMetrics.heightPixels); 857 final int minDim = Math.min(displayMetrics.widthPixels, displayMetrics.heightPixels); 858 859 // We need to ensure that there is enough extra space in the wallpaper for the intended 860 // parallax effects 861 if (LauncherApplication.isScreenLarge()) { 862 mWallpaperWidth = (int) (maxDim * wallpaperTravelToScreenWidthRatio(maxDim, minDim)); 863 mWallpaperHeight = maxDim; 864 } else { 865 mWallpaperWidth = Math.max((int) (minDim * WALLPAPER_SCREENS_SPAN), maxDim); 866 mWallpaperHeight = maxDim; 867 } 868 new Thread("setWallpaperDimension") { 869 public void run() { 870 mWallpaperManager.suggestDesiredDimensions(mWallpaperWidth, mWallpaperHeight); 871 } 872 }.start(); 873 } 874 875 private float wallpaperOffsetForCurrentScroll() { 876 // Set wallpaper offset steps (1 / (number of screens - 1)) 877 mWallpaperManager.setWallpaperOffsetSteps(1.0f / (getChildCount() - 1), 1.0f); 878 879 // For the purposes of computing the scrollRange and overScrollOffset, we assume 880 // that mLayoutScale is 1. This means that when we're in spring-loaded mode, 881 // there's no discrepancy between the wallpaper offset for a given page. 882 float layoutScale = mLayoutScale; 883 mLayoutScale = 1f; 884 int scrollRange = getScrollRange(); 885 886 // Again, we adjust the wallpaper offset to be consistent between values of mLayoutScale 887 float adjustedScrollX = Math.max(0, Math.min(getScrollX(), mMaxScrollX)); 888 adjustedScrollX *= mWallpaperScrollRatio; 889 mLayoutScale = layoutScale; 890 891 float scrollProgress = 892 adjustedScrollX / (float) scrollRange; 893 894 if (LauncherApplication.isScreenLarge() && mIsStaticWallpaper) { 895 // The wallpaper travel width is how far, from left to right, the wallpaper will move 896 // at this orientation. On tablets in portrait mode we don't move all the way to the 897 // edges of the wallpaper, or otherwise the parallax effect would be too strong. 898 int wallpaperTravelWidth = Math.min(mWallpaperTravelWidth, mWallpaperWidth); 899 900 float offsetInDips = wallpaperTravelWidth * scrollProgress + 901 (mWallpaperWidth - wallpaperTravelWidth) / 2; // center it 902 float offset = offsetInDips / (float) mWallpaperWidth; 903 return offset; 904 } else { 905 return scrollProgress; 906 } 907 } 908 909 private void syncWallpaperOffsetWithScroll() { 910 final boolean enableWallpaperEffects = isHardwareAccelerated(); 911 if (enableWallpaperEffects) { 912 mWallpaperOffset.setFinalX(wallpaperOffsetForCurrentScroll()); 913 } 914 } 915 916 public void updateWallpaperOffsetImmediately() { 917 mUpdateWallpaperOffsetImmediately = true; 918 } 919 920 private void updateWallpaperOffsets() { 921 boolean updateNow = false; 922 boolean keepUpdating = true; 923 if (mUpdateWallpaperOffsetImmediately) { 924 updateNow = true; 925 keepUpdating = false; 926 mWallpaperOffset.jumpToFinal(); 927 mUpdateWallpaperOffsetImmediately = false; 928 } else { 929 updateNow = keepUpdating = mWallpaperOffset.computeScrollOffset(); 930 } 931 if (updateNow) { 932 if (mWindowToken != null) { 933 mWallpaperManager.setWallpaperOffsets(mWindowToken, 934 mWallpaperOffset.getCurrX(), mWallpaperOffset.getCurrY()); 935 } 936 } 937 if (keepUpdating) { 938 invalidate(); 939 } 940 } 941 942 @Override 943 protected void updateCurrentPageScroll() { 944 super.updateCurrentPageScroll(); 945 computeWallpaperScrollRatio(mCurrentPage); 946 } 947 948 @Override 949 protected void snapToPage(int whichPage) { 950 super.snapToPage(whichPage); 951 computeWallpaperScrollRatio(whichPage); 952 } 953 954 @Override 955 protected void snapToPage(int whichPage, int duration) { 956 super.snapToPage(whichPage, duration); 957 computeWallpaperScrollRatio(whichPage); 958 } 959 960 protected void snapToPage(int whichPage, Runnable r) { 961 if (mDelayedSnapToPageRunnable != null) { 962 mDelayedSnapToPageRunnable.run(); 963 } 964 mDelayedSnapToPageRunnable = r; 965 snapToPage(whichPage, SLOW_PAGE_SNAP_ANIMATION_DURATION); 966 } 967 968 private void computeWallpaperScrollRatio(int page) { 969 // Here, we determine what the desired scroll would be with and without a layout scale, 970 // and compute a ratio between the two. This allows us to adjust the wallpaper offset 971 // as though there is no layout scale. 972 float layoutScale = mLayoutScale; 973 int scaled = getChildOffset(page) - getRelativeChildOffset(page); 974 mLayoutScale = 1.0f; 975 float unscaled = getChildOffset(page) - getRelativeChildOffset(page); 976 mLayoutScale = layoutScale; 977 if (scaled > 0) { 978 mWallpaperScrollRatio = (1.0f * unscaled) / scaled; 979 } else { 980 mWallpaperScrollRatio = 1f; 981 } 982 } 983 984 class WallpaperOffsetInterpolator { 985 float mFinalHorizontalWallpaperOffset = 0.0f; 986 float mFinalVerticalWallpaperOffset = 0.5f; 987 float mHorizontalWallpaperOffset = 0.0f; 988 float mVerticalWallpaperOffset = 0.5f; 989 long mLastWallpaperOffsetUpdateTime; 990 boolean mIsMovingFast; 991 boolean mOverrideHorizontalCatchupConstant; 992 float mHorizontalCatchupConstant = 0.35f; 993 float mVerticalCatchupConstant = 0.35f; 994 995 public WallpaperOffsetInterpolator() { 996 } 997 998 public void setOverrideHorizontalCatchupConstant(boolean override) { 999 mOverrideHorizontalCatchupConstant = override; 1000 } 1001 1002 public void setHorizontalCatchupConstant(float f) { 1003 mHorizontalCatchupConstant = f; 1004 } 1005 1006 public void setVerticalCatchupConstant(float f) { 1007 mVerticalCatchupConstant = f; 1008 } 1009 1010 public boolean computeScrollOffset() { 1011 if (Float.compare(mHorizontalWallpaperOffset, mFinalHorizontalWallpaperOffset) == 0 && 1012 Float.compare(mVerticalWallpaperOffset, mFinalVerticalWallpaperOffset) == 0) { 1013 mIsMovingFast = false; 1014 return false; 1015 } 1016 boolean isLandscape = mDisplaySize.x > mDisplaySize.y; 1017 1018 long currentTime = System.currentTimeMillis(); 1019 long timeSinceLastUpdate = currentTime - mLastWallpaperOffsetUpdateTime; 1020 timeSinceLastUpdate = Math.min((long) (1000/30f), timeSinceLastUpdate); 1021 timeSinceLastUpdate = Math.max(1L, timeSinceLastUpdate); 1022 1023 float xdiff = Math.abs(mFinalHorizontalWallpaperOffset - mHorizontalWallpaperOffset); 1024 if (!mIsMovingFast && xdiff > 0.07) { 1025 mIsMovingFast = true; 1026 } 1027 1028 float fractionToCatchUpIn1MsHorizontal; 1029 if (mOverrideHorizontalCatchupConstant) { 1030 fractionToCatchUpIn1MsHorizontal = mHorizontalCatchupConstant; 1031 } else if (mIsMovingFast) { 1032 fractionToCatchUpIn1MsHorizontal = isLandscape ? 0.5f : 0.75f; 1033 } else { 1034 // slow 1035 fractionToCatchUpIn1MsHorizontal = isLandscape ? 0.27f : 0.5f; 1036 } 1037 float fractionToCatchUpIn1MsVertical = mVerticalCatchupConstant; 1038 1039 fractionToCatchUpIn1MsHorizontal /= 33f; 1040 fractionToCatchUpIn1MsVertical /= 33f; 1041 1042 final float UPDATE_THRESHOLD = 0.00001f; 1043 float hOffsetDelta = mFinalHorizontalWallpaperOffset - mHorizontalWallpaperOffset; 1044 float vOffsetDelta = mFinalVerticalWallpaperOffset - mVerticalWallpaperOffset; 1045 boolean jumpToFinalValue = Math.abs(hOffsetDelta) < UPDATE_THRESHOLD && 1046 Math.abs(vOffsetDelta) < UPDATE_THRESHOLD; 1047 1048 // Don't have any lag between workspace and wallpaper on non-large devices 1049 if (!LauncherApplication.isScreenLarge() || jumpToFinalValue) { 1050 mHorizontalWallpaperOffset = mFinalHorizontalWallpaperOffset; 1051 mVerticalWallpaperOffset = mFinalVerticalWallpaperOffset; 1052 } else { 1053 float percentToCatchUpVertical = 1054 Math.min(1.0f, timeSinceLastUpdate * fractionToCatchUpIn1MsVertical); 1055 float percentToCatchUpHorizontal = 1056 Math.min(1.0f, timeSinceLastUpdate * fractionToCatchUpIn1MsHorizontal); 1057 mHorizontalWallpaperOffset += percentToCatchUpHorizontal * hOffsetDelta; 1058 mVerticalWallpaperOffset += percentToCatchUpVertical * vOffsetDelta; 1059 } 1060 1061 mLastWallpaperOffsetUpdateTime = System.currentTimeMillis(); 1062 return true; 1063 } 1064 1065 public float getCurrX() { 1066 return mHorizontalWallpaperOffset; 1067 } 1068 1069 public float getFinalX() { 1070 return mFinalHorizontalWallpaperOffset; 1071 } 1072 1073 public float getCurrY() { 1074 return mVerticalWallpaperOffset; 1075 } 1076 1077 public float getFinalY() { 1078 return mFinalVerticalWallpaperOffset; 1079 } 1080 1081 public void setFinalX(float x) { 1082 mFinalHorizontalWallpaperOffset = Math.max(0f, Math.min(x, 1.0f)); 1083 } 1084 1085 public void setFinalY(float y) { 1086 mFinalVerticalWallpaperOffset = Math.max(0f, Math.min(y, 1.0f)); 1087 } 1088 1089 public void jumpToFinal() { 1090 mHorizontalWallpaperOffset = mFinalHorizontalWallpaperOffset; 1091 mVerticalWallpaperOffset = mFinalVerticalWallpaperOffset; 1092 } 1093 } 1094 1095 @Override 1096 public void computeScroll() { 1097 super.computeScroll(); 1098 syncWallpaperOffsetWithScroll(); 1099 } 1100 1101 void showOutlines() { 1102 if (!isSmall() && !mIsSwitchingState) { 1103 if (mChildrenOutlineFadeOutAnimation != null) mChildrenOutlineFadeOutAnimation.cancel(); 1104 if (mChildrenOutlineFadeInAnimation != null) mChildrenOutlineFadeInAnimation.cancel(); 1105 mChildrenOutlineFadeInAnimation = ObjectAnimator.ofFloat(this, "childrenOutlineAlpha", 1.0f); 1106 mChildrenOutlineFadeInAnimation.setDuration(CHILDREN_OUTLINE_FADE_IN_DURATION); 1107 mChildrenOutlineFadeInAnimation.start(); 1108 } 1109 } 1110 1111 void hideOutlines() { 1112 if (!isSmall() && !mIsSwitchingState) { 1113 if (mChildrenOutlineFadeInAnimation != null) mChildrenOutlineFadeInAnimation.cancel(); 1114 if (mChildrenOutlineFadeOutAnimation != null) mChildrenOutlineFadeOutAnimation.cancel(); 1115 mChildrenOutlineFadeOutAnimation = ObjectAnimator.ofFloat(this, "childrenOutlineAlpha", 0.0f); 1116 mChildrenOutlineFadeOutAnimation.setDuration(CHILDREN_OUTLINE_FADE_OUT_DURATION); 1117 mChildrenOutlineFadeOutAnimation.setStartDelay(CHILDREN_OUTLINE_FADE_OUT_DELAY); 1118 mChildrenOutlineFadeOutAnimation.start(); 1119 } 1120 } 1121 1122 public void showOutlinesTemporarily() { 1123 if (!mIsPageMoving && !isTouchActive()) { 1124 snapToPage(mCurrentPage); 1125 } 1126 } 1127 1128 public void setChildrenOutlineAlpha(float alpha) { 1129 mChildrenOutlineAlpha = alpha; 1130 for (int i = 0; i < getChildCount(); i++) { 1131 CellLayout cl = (CellLayout) getChildAt(i); 1132 cl.setBackgroundAlpha(alpha); 1133 } 1134 } 1135 1136 public float getChildrenOutlineAlpha() { 1137 return mChildrenOutlineAlpha; 1138 } 1139 1140 void disableBackground() { 1141 mDrawBackground = false; 1142 } 1143 void enableBackground() { 1144 mDrawBackground = true; 1145 } 1146 1147 private void animateBackgroundGradient(float finalAlpha, boolean animated) { 1148 if (mBackground == null) return; 1149 if (mBackgroundFadeInAnimation != null) { 1150 mBackgroundFadeInAnimation.cancel(); 1151 mBackgroundFadeInAnimation = null; 1152 } 1153 if (mBackgroundFadeOutAnimation != null) { 1154 mBackgroundFadeOutAnimation.cancel(); 1155 mBackgroundFadeOutAnimation = null; 1156 } 1157 float startAlpha = getBackgroundAlpha(); 1158 if (finalAlpha != startAlpha) { 1159 if (animated) { 1160 mBackgroundFadeOutAnimation = ValueAnimator.ofFloat(startAlpha, finalAlpha); 1161 mBackgroundFadeOutAnimation.addUpdateListener(new AnimatorUpdateListener() { 1162 public void onAnimationUpdate(ValueAnimator animation) { 1163 setBackgroundAlpha(((Float) animation.getAnimatedValue()).floatValue()); 1164 } 1165 }); 1166 mBackgroundFadeOutAnimation.setInterpolator(new DecelerateInterpolator(1.5f)); 1167 mBackgroundFadeOutAnimation.setDuration(BACKGROUND_FADE_OUT_DURATION); 1168 mBackgroundFadeOutAnimation.start(); 1169 } else { 1170 setBackgroundAlpha(finalAlpha); 1171 } 1172 } 1173 } 1174 1175 public void setBackgroundAlpha(float alpha) { 1176 if (alpha != mBackgroundAlpha) { 1177 mBackgroundAlpha = alpha; 1178 invalidate(); 1179 } 1180 } 1181 1182 public float getBackgroundAlpha() { 1183 return mBackgroundAlpha; 1184 } 1185 1186 /** 1187 * Due to 3D transformations, if two CellLayouts are theoretically touching each other, 1188 * on the xy plane, when one is rotated along the y-axis, the gap between them is perceived 1189 * as being larger. This method computes what offset the rotated view should be translated 1190 * in order to minimize this perceived gap. 1191 * @param degrees Angle of the view 1192 * @param width Width of the view 1193 * @param height Height of the view 1194 * @return Offset to be used in a View.setTranslationX() call 1195 */ 1196 private float getOffsetXForRotation(float degrees, int width, int height) { 1197 mMatrix.reset(); 1198 mCamera.save(); 1199 mCamera.rotateY(Math.abs(degrees)); 1200 mCamera.getMatrix(mMatrix); 1201 mCamera.restore(); 1202 1203 mMatrix.preTranslate(-width * 0.5f, -height * 0.5f); 1204 mMatrix.postTranslate(width * 0.5f, height * 0.5f); 1205 mTempFloat2[0] = width; 1206 mTempFloat2[1] = height; 1207 mMatrix.mapPoints(mTempFloat2); 1208 return (width - mTempFloat2[0]) * (degrees > 0.0f ? 1.0f : -1.0f); 1209 } 1210 1211 float backgroundAlphaInterpolator(float r) { 1212 float pivotA = 0.1f; 1213 float pivotB = 0.4f; 1214 if (r < pivotA) { 1215 return 0; 1216 } else if (r > pivotB) { 1217 return 1.0f; 1218 } else { 1219 return (r - pivotA)/(pivotB - pivotA); 1220 } 1221 } 1222 1223 float overScrollBackgroundAlphaInterpolator(float r) { 1224 float threshold = 0.08f; 1225 1226 if (r > mOverScrollMaxBackgroundAlpha) { 1227 mOverScrollMaxBackgroundAlpha = r; 1228 } else if (r < mOverScrollMaxBackgroundAlpha) { 1229 r = mOverScrollMaxBackgroundAlpha; 1230 } 1231 1232 return Math.min(r / threshold, 1.0f); 1233 } 1234 1235 private void updatePageAlphaValues(int screenCenter) { 1236 boolean isInOverscroll = mOverScrollX < 0 || mOverScrollX > mMaxScrollX; 1237 if (mWorkspaceFadeInAdjacentScreens && 1238 mState == State.NORMAL && 1239 !mIsSwitchingState && 1240 !isInOverscroll) { 1241 for (int i = 0; i < getChildCount(); i++) { 1242 CellLayout child = (CellLayout) getChildAt(i); 1243 if (child != null) { 1244 float scrollProgress = getScrollProgress(screenCenter, child, i); 1245 float alpha = 1 - Math.abs(scrollProgress); 1246 child.getShortcutsAndWidgets().setAlpha(alpha); 1247 if (!mIsDragOccuring) { 1248 child.setBackgroundAlphaMultiplier( 1249 backgroundAlphaInterpolator(Math.abs(scrollProgress))); 1250 } else { 1251 child.setBackgroundAlphaMultiplier(1f); 1252 } 1253 } 1254 } 1255 } 1256 } 1257 1258 private void setChildrenBackgroundAlphaMultipliers(float a) { 1259 for (int i = 0; i < getChildCount(); i++) { 1260 CellLayout child = (CellLayout) getChildAt(i); 1261 child.setBackgroundAlphaMultiplier(a); 1262 } 1263 } 1264 1265 @Override 1266 protected void screenScrolled(int screenCenter) { 1267 super.screenScrolled(screenCenter); 1268 1269 updatePageAlphaValues(screenCenter); 1270 1271 if (mOverScrollX < 0 || mOverScrollX > mMaxScrollX) { 1272 int index = mOverScrollX < 0 ? 0 : getChildCount() - 1; 1273 CellLayout cl = (CellLayout) getChildAt(index); 1274 float scrollProgress = getScrollProgress(screenCenter, cl, index); 1275 cl.setOverScrollAmount(Math.abs(scrollProgress), index == 0); 1276 float rotation = - WORKSPACE_OVERSCROLL_ROTATION * scrollProgress; 1277 cl.setRotationY(rotation); 1278 setFadeForOverScroll(Math.abs(scrollProgress)); 1279 if (!mOverscrollTransformsSet) { 1280 mOverscrollTransformsSet = true; 1281 cl.setCameraDistance(mDensity * mCameraDistance); 1282 cl.setPivotX(cl.getMeasuredWidth() * (index == 0 ? 0.75f : 0.25f)); 1283 cl.setPivotY(cl.getMeasuredHeight() * 0.5f); 1284 cl.setOverscrollTransformsDirty(true); 1285 } 1286 } else { 1287 if (mOverscrollFade != 0) { 1288 setFadeForOverScroll(0); 1289 } 1290 if (mOverscrollTransformsSet) { 1291 mOverscrollTransformsSet = false; 1292 ((CellLayout) getChildAt(0)).resetOverscrollTransforms(); 1293 ((CellLayout) getChildAt(getChildCount() - 1)).resetOverscrollTransforms(); 1294 } 1295 } 1296 } 1297 1298 @Override 1299 protected void overScroll(float amount) { 1300 acceleratedOverScroll(amount); 1301 } 1302 1303 protected void onAttachedToWindow() { 1304 super.onAttachedToWindow(); 1305 mWindowToken = getWindowToken(); 1306 computeScroll(); 1307 mDragController.setWindowToken(mWindowToken); 1308 } 1309 1310 protected void onDetachedFromWindow() { 1311 mWindowToken = null; 1312 } 1313 1314 @Override 1315 protected void onLayout(boolean changed, int left, int top, int right, int bottom) { 1316 if (mFirstLayout && mCurrentPage >= 0 && mCurrentPage < getChildCount()) { 1317 mUpdateWallpaperOffsetImmediately = true; 1318 } 1319 super.onLayout(changed, left, top, right, bottom); 1320 } 1321 1322 @Override 1323 protected void onDraw(Canvas canvas) { 1324 updateWallpaperOffsets(); 1325 1326 // Draw the background gradient if necessary 1327 if (mBackground != null && mBackgroundAlpha > 0.0f && mDrawBackground) { 1328 int alpha = (int) (mBackgroundAlpha * 255); 1329 mBackground.setAlpha(alpha); 1330 mBackground.setBounds(getScrollX(), 0, getScrollX() + getMeasuredWidth(), 1331 getMeasuredHeight()); 1332 mBackground.draw(canvas); 1333 } 1334 1335 super.onDraw(canvas); 1336 1337 // Call back to LauncherModel to finish binding after the first draw 1338 post(new Runnable() { 1339 @Override 1340 public void run() { 1341 mLauncher.getModel().bindRemainingSynchronousPages(); 1342 } 1343 }); 1344 } 1345 1346 boolean isDrawingBackgroundGradient() { 1347 return (mBackground != null && mBackgroundAlpha > 0.0f && mDrawBackground); 1348 } 1349 1350 @Override 1351 protected boolean onRequestFocusInDescendants(int direction, Rect previouslyFocusedRect) { 1352 if (!mLauncher.isAllAppsVisible()) { 1353 final Folder openFolder = getOpenFolder(); 1354 if (openFolder != null) { 1355 return openFolder.requestFocus(direction, previouslyFocusedRect); 1356 } else { 1357 return super.onRequestFocusInDescendants(direction, previouslyFocusedRect); 1358 } 1359 } 1360 return false; 1361 } 1362 1363 @Override 1364 public int getDescendantFocusability() { 1365 if (isSmall()) { 1366 return ViewGroup.FOCUS_BLOCK_DESCENDANTS; 1367 } 1368 return super.getDescendantFocusability(); 1369 } 1370 1371 @Override 1372 public void addFocusables(ArrayList<View> views, int direction, int focusableMode) { 1373 if (!mLauncher.isAllAppsVisible()) { 1374 final Folder openFolder = getOpenFolder(); 1375 if (openFolder != null) { 1376 openFolder.addFocusables(views, direction); 1377 } else { 1378 super.addFocusables(views, direction, focusableMode); 1379 } 1380 } 1381 } 1382 1383 public boolean isSmall() { 1384 return mState == State.SMALL || mState == State.SPRING_LOADED; 1385 } 1386 1387 void enableChildrenCache(int fromPage, int toPage) { 1388 if (fromPage > toPage) { 1389 final int temp = fromPage; 1390 fromPage = toPage; 1391 toPage = temp; 1392 } 1393 1394 final int screenCount = getChildCount(); 1395 1396 fromPage = Math.max(fromPage, 0); 1397 toPage = Math.min(toPage, screenCount - 1); 1398 1399 for (int i = fromPage; i <= toPage; i++) { 1400 final CellLayout layout = (CellLayout) getChildAt(i); 1401 layout.setChildrenDrawnWithCacheEnabled(true); 1402 layout.setChildrenDrawingCacheEnabled(true); 1403 } 1404 } 1405 1406 void clearChildrenCache() { 1407 final int screenCount = getChildCount(); 1408 for (int i = 0; i < screenCount; i++) { 1409 final CellLayout layout = (CellLayout) getChildAt(i); 1410 layout.setChildrenDrawnWithCacheEnabled(false); 1411 // In software mode, we don't want the items to continue to be drawn into bitmaps 1412 if (!isHardwareAccelerated()) { 1413 layout.setChildrenDrawingCacheEnabled(false); 1414 } 1415 } 1416 } 1417 1418 private void updateChildrenLayersEnabled() { 1419 boolean small = mState == State.SMALL || mIsSwitchingState; 1420 boolean enableChildrenLayers = small || mAnimatingViewIntoPlace || isPageMoving(); 1421 1422 if (enableChildrenLayers != mChildrenLayersEnabled) { 1423 mChildrenLayersEnabled = enableChildrenLayers; 1424 for (int i = 0; i < getPageCount(); i++) { 1425 ((ViewGroup)getChildAt(i)).setChildrenLayersEnabled(mChildrenLayersEnabled); 1426 } 1427 } 1428 } 1429 1430 protected void onWallpaperTap(MotionEvent ev) { 1431 final int[] position = mTempCell; 1432 getLocationOnScreen(position); 1433 1434 int pointerIndex = ev.getActionIndex(); 1435 position[0] += (int) ev.getX(pointerIndex); 1436 position[1] += (int) ev.getY(pointerIndex); 1437 1438 mWallpaperManager.sendWallpaperCommand(getWindowToken(), 1439 ev.getAction() == MotionEvent.ACTION_UP 1440 ? WallpaperManager.COMMAND_TAP : WallpaperManager.COMMAND_SECONDARY_TAP, 1441 position[0], position[1], 0, null); 1442 } 1443 1444 /* 1445 * This interpolator emulates the rate at which the perceived scale of an object changes 1446 * as its distance from a camera increases. When this interpolator is applied to a scale 1447 * animation on a view, it evokes the sense that the object is shrinking due to moving away 1448 * from the camera. 1449 */ 1450 static class ZInterpolator implements TimeInterpolator { 1451 private float focalLength; 1452 1453 public ZInterpolator(float foc) { 1454 focalLength = foc; 1455 } 1456 1457 public float getInterpolation(float input) { 1458 return (1.0f - focalLength / (focalLength + input)) / 1459 (1.0f - focalLength / (focalLength + 1.0f)); 1460 } 1461 } 1462 1463 /* 1464 * The exact reverse of ZInterpolator. 1465 */ 1466 static class InverseZInterpolator implements TimeInterpolator { 1467 private ZInterpolator zInterpolator; 1468 public InverseZInterpolator(float foc) { 1469 zInterpolator = new ZInterpolator(foc); 1470 } 1471 public float getInterpolation(float input) { 1472 return 1 - zInterpolator.getInterpolation(1 - input); 1473 } 1474 } 1475 1476 /* 1477 * ZInterpolator compounded with an ease-out. 1478 */ 1479 static class ZoomOutInterpolator implements TimeInterpolator { 1480 private final DecelerateInterpolator decelerate = new DecelerateInterpolator(0.75f); 1481 private final ZInterpolator zInterpolator = new ZInterpolator(0.13f); 1482 1483 public float getInterpolation(float input) { 1484 return decelerate.getInterpolation(zInterpolator.getInterpolation(input)); 1485 } 1486 } 1487 1488 /* 1489 * InvereZInterpolator compounded with an ease-out. 1490 */ 1491 static class ZoomInInterpolator implements TimeInterpolator { 1492 private final InverseZInterpolator inverseZInterpolator = new InverseZInterpolator(0.35f); 1493 private final DecelerateInterpolator decelerate = new DecelerateInterpolator(3.0f); 1494 1495 public float getInterpolation(float input) { 1496 return decelerate.getInterpolation(inverseZInterpolator.getInterpolation(input)); 1497 } 1498 } 1499 1500 private final ZoomInInterpolator mZoomInInterpolator = new ZoomInInterpolator(); 1501 1502 /* 1503 * 1504 * We call these methods (onDragStartedWithItemSpans/onDragStartedWithSize) whenever we 1505 * start a drag in Launcher, regardless of whether the drag has ever entered the Workspace 1506 * 1507 * These methods mark the appropriate pages as accepting drops (which alters their visual 1508 * appearance). 1509 * 1510 */ 1511 public void onDragStartedWithItem(View v) { 1512 final Canvas canvas = new Canvas(); 1513 1514 // The outline is used to visualize where the item will land if dropped 1515 mDragOutline = createDragOutline(v, canvas, DRAG_BITMAP_PADDING); 1516 } 1517 1518 public void onDragStartedWithItem(PendingAddItemInfo info, Bitmap b, Paint alphaClipPaint) { 1519 final Canvas canvas = new Canvas(); 1520 1521 int[] size = estimateItemSize(info.spanX, info.spanY, info, false); 1522 1523 // The outline is used to visualize where the item will land if dropped 1524 mDragOutline = createDragOutline(b, canvas, DRAG_BITMAP_PADDING, size[0], 1525 size[1], alphaClipPaint); 1526 } 1527 1528 public void exitWidgetResizeMode() { 1529 DragLayer dragLayer = mLauncher.getDragLayer(); 1530 dragLayer.clearAllResizeFrames(); 1531 } 1532 1533 private void initAnimationArrays() { 1534 final int childCount = getChildCount(); 1535 if (mOldTranslationXs != null) return; 1536 mOldTranslationXs = new float[childCount]; 1537 mOldTranslationYs = new float[childCount]; 1538 mOldScaleXs = new float[childCount]; 1539 mOldScaleYs = new float[childCount]; 1540 mOldBackgroundAlphas = new float[childCount]; 1541 mOldAlphas = new float[childCount]; 1542 mNewTranslationXs = new float[childCount]; 1543 mNewTranslationYs = new float[childCount]; 1544 mNewScaleXs = new float[childCount]; 1545 mNewScaleYs = new float[childCount]; 1546 mNewBackgroundAlphas = new float[childCount]; 1547 mNewAlphas = new float[childCount]; 1548 mNewRotationYs = new float[childCount]; 1549 } 1550 1551 Animator getChangeStateAnimation(final State state, boolean animated) { 1552 return getChangeStateAnimation(state, animated, 0); 1553 } 1554 1555 Animator getChangeStateAnimation(final State state, boolean animated, int delay) { 1556 if (mState == state) { 1557 return null; 1558 } 1559 1560 // Initialize animation arrays for the first time if necessary 1561 initAnimationArrays(); 1562 1563 AnimatorSet anim = animated ? new AnimatorSet() : null; 1564 1565 // Stop any scrolling, move to the current page right away 1566 setCurrentPage(getNextPage()); 1567 1568 final State oldState = mState; 1569 final boolean oldStateIsNormal = (oldState == State.NORMAL); 1570 final boolean oldStateIsSpringLoaded = (oldState == State.SPRING_LOADED); 1571 final boolean oldStateIsSmall = (oldState == State.SMALL); 1572 mState = state; 1573 final boolean stateIsNormal = (state == State.NORMAL); 1574 final boolean stateIsSpringLoaded = (state == State.SPRING_LOADED); 1575 final boolean stateIsSmall = (state == State.SMALL); 1576 float finalScaleFactor = 1.0f; 1577 float finalBackgroundAlpha = stateIsSpringLoaded ? 1.0f : 0f; 1578 float translationX = 0; 1579 float translationY = 0; 1580 boolean zoomIn = true; 1581 1582 if (state != State.NORMAL) { 1583 finalScaleFactor = mSpringLoadedShrinkFactor - (stateIsSmall ? 0.1f : 0); 1584 setPageSpacing(mSpringLoadedPageSpacing); 1585 if (oldStateIsNormal && stateIsSmall) { 1586 zoomIn = false; 1587 setLayoutScale(finalScaleFactor); 1588 updateChildrenLayersEnabled(); 1589 } else { 1590 finalBackgroundAlpha = 1.0f; 1591 setLayoutScale(finalScaleFactor); 1592 } 1593 } else { 1594 setPageSpacing(PagedView.AUTOMATIC_PAGE_SPACING); 1595 setLayoutScale(1.0f); 1596 } 1597 1598 final int duration = zoomIn ? 1599 getResources().getInteger(R.integer.config_workspaceUnshrinkTime) : 1600 getResources().getInteger(R.integer.config_appsCustomizeWorkspaceShrinkTime); 1601 for (int i = 0; i < getChildCount(); i++) { 1602 final CellLayout cl = (CellLayout) getChildAt(i); 1603 float finalAlpha = (!mWorkspaceFadeInAdjacentScreens || stateIsSpringLoaded || 1604 (i == mCurrentPage)) ? 1f : 0f; 1605 float currentAlpha = cl.getShortcutsAndWidgets().getAlpha(); 1606 float initialAlpha = currentAlpha; 1607 1608 // Determine the pages alpha during the state transition 1609 if ((oldStateIsSmall && stateIsNormal) || 1610 (oldStateIsNormal && stateIsSmall)) { 1611 // To/from workspace - only show the current page unless the transition is not 1612 // animated and the animation end callback below doesn't run; 1613 // or, if we're in spring-loaded mode 1614 if (i == mCurrentPage || !animated || oldStateIsSpringLoaded) { 1615 finalAlpha = 1f; 1616 } else { 1617 initialAlpha = 0f; 1618 finalAlpha = 0f; 1619 } 1620 } 1621 1622 mOldAlphas[i] = initialAlpha; 1623 mNewAlphas[i] = finalAlpha; 1624 if (animated) { 1625 mOldTranslationXs[i] = cl.getTranslationX(); 1626 mOldTranslationYs[i] = cl.getTranslationY(); 1627 mOldScaleXs[i] = cl.getScaleX(); 1628 mOldScaleYs[i] = cl.getScaleY(); 1629 mOldBackgroundAlphas[i] = cl.getBackgroundAlpha(); 1630 1631 mNewTranslationXs[i] = translationX; 1632 mNewTranslationYs[i] = translationY; 1633 mNewScaleXs[i] = finalScaleFactor; 1634 mNewScaleYs[i] = finalScaleFactor; 1635 mNewBackgroundAlphas[i] = finalBackgroundAlpha; 1636 } else { 1637 cl.setTranslationX(translationX); 1638 cl.setTranslationY(translationY); 1639 cl.setScaleX(finalScaleFactor); 1640 cl.setScaleY(finalScaleFactor); 1641 cl.setBackgroundAlpha(finalBackgroundAlpha); 1642 cl.setShortcutAndWidgetAlpha(finalAlpha); 1643 } 1644 } 1645 1646 if (animated) { 1647 for (int index = 0; index < getChildCount(); index++) { 1648 final int i = index; 1649 final CellLayout cl = (CellLayout) getChildAt(i); 1650 float currentAlpha = cl.getShortcutsAndWidgets().getAlpha(); 1651 if (mOldAlphas[i] == 0 && mNewAlphas[i] == 0) { 1652 cl.setTranslationX(mNewTranslationXs[i]); 1653 cl.setTranslationY(mNewTranslationYs[i]); 1654 cl.setScaleX(mNewScaleXs[i]); 1655 cl.setScaleY(mNewScaleYs[i]); 1656 cl.setBackgroundAlpha(mNewBackgroundAlphas[i]); 1657 cl.setShortcutAndWidgetAlpha(mNewAlphas[i]); 1658 cl.setRotationY(mNewRotationYs[i]); 1659 } else { 1660 LauncherViewPropertyAnimator a = new LauncherViewPropertyAnimator(cl); 1661 a.translationX(mNewTranslationXs[i]) 1662 .translationY(mNewTranslationYs[i]) 1663 .scaleX(mNewScaleXs[i]) 1664 .scaleY(mNewScaleYs[i]) 1665 .setDuration(duration) 1666 .setInterpolator(mZoomInInterpolator); 1667 anim.play(a); 1668 1669 if (mOldAlphas[i] != mNewAlphas[i] || currentAlpha != mNewAlphas[i]) { 1670 LauncherViewPropertyAnimator alphaAnim = 1671 new LauncherViewPropertyAnimator(cl.getShortcutsAndWidgets()); 1672 alphaAnim.alpha(mNewAlphas[i]) 1673 .setDuration(duration) 1674 .setInterpolator(mZoomInInterpolator); 1675 anim.play(alphaAnim); 1676 } 1677 if (mOldBackgroundAlphas[i] != 0 || 1678 mNewBackgroundAlphas[i] != 0) { 1679 ValueAnimator bgAnim = ValueAnimator.ofFloat(0f, 1f).setDuration(duration); 1680 bgAnim.setInterpolator(mZoomInInterpolator); 1681 bgAnim.addUpdateListener(new LauncherAnimatorUpdateListener() { 1682 public void onAnimationUpdate(float a, float b) { 1683 cl.setBackgroundAlpha( 1684 a * mOldBackgroundAlphas[i] + 1685 b * mNewBackgroundAlphas[i]); 1686 } 1687 }); 1688 anim.play(bgAnim); 1689 } 1690 } 1691 } 1692 buildPageHardwareLayers(); 1693 anim.setStartDelay(delay); 1694 } 1695 1696 if (stateIsSpringLoaded) { 1697 // Right now we're covered by Apps Customize 1698 // Show the background gradient immediately, so the gradient will 1699 // be showing once AppsCustomize disappears 1700 animateBackgroundGradient(getResources().getInteger( 1701 R.integer.config_appsCustomizeSpringLoadedBgAlpha) / 100f, false); 1702 } else { 1703 // Fade the background gradient away 1704 animateBackgroundGradient(0f, true); 1705 } 1706 return anim; 1707 } 1708 1709 @Override 1710 public void onLauncherTransitionPrepare(Launcher l, boolean animated, boolean toWorkspace) { 1711 mIsSwitchingState = true; 1712 cancelScrollingIndicatorAnimations(); 1713 } 1714 1715 @Override 1716 public void onLauncherTransitionStart(Launcher l, boolean animated, boolean toWorkspace) { 1717 } 1718 1719 @Override 1720 public void onLauncherTransitionStep(Launcher l, float t) { 1721 mTransitionProgress = t; 1722 } 1723 1724 @Override 1725 public void onLauncherTransitionEnd(Launcher l, boolean animated, boolean toWorkspace) { 1726 mIsSwitchingState = false; 1727 mWallpaperOffset.setOverrideHorizontalCatchupConstant(false); 1728 updateChildrenLayersEnabled(); 1729 // The code in getChangeStateAnimation to determine initialAlpha and finalAlpha will ensure 1730 // ensure that only the current page is visible during (and subsequently, after) the 1731 // transition animation. If fade adjacent pages is disabled, then re-enable the page 1732 // visibility after the transition animation. 1733 if (!mWorkspaceFadeInAdjacentScreens) { 1734 for (int i = 0; i < getChildCount(); i++) { 1735 final CellLayout cl = (CellLayout) getChildAt(i); 1736 cl.setShortcutAndWidgetAlpha(1f); 1737 } 1738 } 1739 } 1740 1741 @Override 1742 public View getContent() { 1743 return this; 1744 } 1745 1746 /** 1747 * Draw the View v into the given Canvas. 1748 * 1749 * @param v the view to draw 1750 * @param destCanvas the canvas to draw on 1751 * @param padding the horizontal and vertical padding to use when drawing 1752 */ 1753 private void drawDragView(View v, Canvas destCanvas, int padding, boolean pruneToDrawable) { 1754 final Rect clipRect = mTempRect; 1755 v.getDrawingRect(clipRect); 1756 1757 boolean textVisible = false; 1758 1759 destCanvas.save(); 1760 if (v instanceof TextView && pruneToDrawable) { 1761 Drawable d = ((TextView) v).getCompoundDrawables()[1]; 1762 clipRect.set(0, 0, d.getIntrinsicWidth() + padding, d.getIntrinsicHeight() + padding); 1763 destCanvas.translate(padding / 2, padding / 2); 1764 d.draw(destCanvas); 1765 } else { 1766 if (v instanceof FolderIcon) { 1767 // For FolderIcons the text can bleed into the icon area, and so we need to 1768 // hide the text completely (which can't be achieved by clipping). 1769 if (((FolderIcon) v).getTextVisible()) { 1770 ((FolderIcon) v).setTextVisible(false); 1771 textVisible = true; 1772 } 1773 } else if (v instanceof BubbleTextView) { 1774 final BubbleTextView tv = (BubbleTextView) v; 1775 clipRect.bottom = tv.getExtendedPaddingTop() - (int) BubbleTextView.PADDING_V + 1776 tv.getLayout().getLineTop(0); 1777 } else if (v instanceof TextView) { 1778 final TextView tv = (TextView) v; 1779 clipRect.bottom = tv.getExtendedPaddingTop() - tv.getCompoundDrawablePadding() + 1780 tv.getLayout().getLineTop(0); 1781 } 1782 destCanvas.translate(-v.getScrollX() + padding / 2, -v.getScrollY() + padding / 2); 1783 destCanvas.clipRect(clipRect, Op.REPLACE); 1784 v.draw(destCanvas); 1785 1786 // Restore text visibility of FolderIcon if necessary 1787 if (textVisible) { 1788 ((FolderIcon) v).setTextVisible(true); 1789 } 1790 } 1791 destCanvas.restore(); 1792 } 1793 1794 /** 1795 * Returns a new bitmap to show when the given View is being dragged around. 1796 * Responsibility for the bitmap is transferred to the caller. 1797 */ 1798 public Bitmap createDragBitmap(View v, Canvas canvas, int padding) { 1799 Bitmap b; 1800 1801 if (v instanceof TextView) { 1802 Drawable d = ((TextView) v).getCompoundDrawables()[1]; 1803 b = Bitmap.createBitmap(d.getIntrinsicWidth() + padding, 1804 d.getIntrinsicHeight() + padding, Bitmap.Config.ARGB_8888); 1805 } else { 1806 b = Bitmap.createBitmap( 1807 v.getWidth() + padding, v.getHeight() + padding, Bitmap.Config.ARGB_8888); 1808 } 1809 1810 canvas.setBitmap(b); 1811 drawDragView(v, canvas, padding, true); 1812 canvas.setBitmap(null); 1813 1814 return b; 1815 } 1816 1817 /** 1818 * Returns a new bitmap to be used as the object outline, e.g. to visualize the drop location. 1819 * Responsibility for the bitmap is transferred to the caller. 1820 */ 1821 private Bitmap createDragOutline(View v, Canvas canvas, int padding) { 1822 final int outlineColor = getResources().getColor(android.R.color.holo_blue_light); 1823 final Bitmap b = Bitmap.createBitmap( 1824 v.getWidth() + padding, v.getHeight() + padding, Bitmap.Config.ARGB_8888); 1825 1826 canvas.setBitmap(b); 1827 drawDragView(v, canvas, padding, true); 1828 mOutlineHelper.applyMediumExpensiveOutlineWithBlur(b, canvas, outlineColor, outlineColor); 1829 canvas.setBitmap(null); 1830 return b; 1831 } 1832 1833 /** 1834 * Returns a new bitmap to be used as the object outline, e.g. to visualize the drop location. 1835 * Responsibility for the bitmap is transferred to the caller. 1836 */ 1837 private Bitmap createDragOutline(Bitmap orig, Canvas canvas, int padding, int w, int h, 1838 Paint alphaClipPaint) { 1839 final int outlineColor = getResources().getColor(android.R.color.holo_blue_light); 1840 final Bitmap b = Bitmap.createBitmap(w, h, Bitmap.Config.ARGB_8888); 1841 canvas.setBitmap(b); 1842 1843 Rect src = new Rect(0, 0, orig.getWidth(), orig.getHeight()); 1844 float scaleFactor = Math.min((w - padding) / (float) orig.getWidth(), 1845 (h - padding) / (float) orig.getHeight()); 1846 int scaledWidth = (int) (scaleFactor * orig.getWidth()); 1847 int scaledHeight = (int) (scaleFactor * orig.getHeight()); 1848 Rect dst = new Rect(0, 0, scaledWidth, scaledHeight); 1849 1850 // center the image 1851 dst.offset((w - scaledWidth) / 2, (h - scaledHeight) / 2); 1852 1853 canvas.drawBitmap(orig, src, dst, null); 1854 mOutlineHelper.applyMediumExpensiveOutlineWithBlur(b, canvas, outlineColor, outlineColor, 1855 alphaClipPaint); 1856 canvas.setBitmap(null); 1857 1858 return b; 1859 } 1860 1861 void startDrag(CellLayout.CellInfo cellInfo) { 1862 View child = cellInfo.cell; 1863 1864 // Make sure the drag was started by a long press as opposed to a long click. 1865 if (!child.isInTouchMode()) { 1866 return; 1867 } 1868 1869 mDragInfo = cellInfo; 1870 child.setVisibility(INVISIBLE); 1871 CellLayout layout = (CellLayout) child.getParent().getParent(); 1872 layout.prepareChildForDrag(child); 1873 1874 child.clearFocus(); 1875 child.setPressed(false); 1876 1877 final Canvas canvas = new Canvas(); 1878 1879 // The outline is used to visualize where the item will land if dropped 1880 mDragOutline = createDragOutline(child, canvas, DRAG_BITMAP_PADDING); 1881 beginDragShared(child, this); 1882 } 1883 1884 public void beginDragShared(View child, DragSource source) { 1885 Resources r = getResources(); 1886 1887 // The drag bitmap follows the touch point around on the screen 1888 final Bitmap b = createDragBitmap(child, new Canvas(), DRAG_BITMAP_PADDING); 1889 1890 final int bmpWidth = b.getWidth(); 1891 final int bmpHeight = b.getHeight(); 1892 1893 mLauncher.getDragLayer().getLocationInDragLayer(child, mTempXY); 1894 int dragLayerX = 1895 Math.round(mTempXY[0] - (bmpWidth - child.getScaleX() * child.getWidth()) / 2); 1896 int dragLayerY = 1897 Math.round(mTempXY[1] - (bmpHeight - child.getScaleY() * bmpHeight) / 2 1898 - DRAG_BITMAP_PADDING / 2); 1899 1900 Point dragVisualizeOffset = null; 1901 Rect dragRect = null; 1902 if (child instanceof BubbleTextView || child instanceof PagedViewIcon) { 1903 int iconSize = r.getDimensionPixelSize(R.dimen.app_icon_size); 1904 int iconPaddingTop = r.getDimensionPixelSize(R.dimen.app_icon_padding_top); 1905 int top = child.getPaddingTop(); 1906 int left = (bmpWidth - iconSize) / 2; 1907 int right = left + iconSize; 1908 int bottom = top + iconSize; 1909 dragLayerY += top; 1910 // Note: The drag region is used to calculate drag layer offsets, but the 1911 // dragVisualizeOffset in addition to the dragRect (the size) to position the outline. 1912 dragVisualizeOffset = new Point(-DRAG_BITMAP_PADDING / 2, 1913 iconPaddingTop - DRAG_BITMAP_PADDING / 2); 1914 dragRect = new Rect(left, top, right, bottom); 1915 } else if (child instanceof FolderIcon) { 1916 int previewSize = r.getDimensionPixelSize(R.dimen.folder_preview_size); 1917 dragRect = new Rect(0, 0, child.getWidth(), previewSize); 1918 } 1919 1920 // Clear the pressed state if necessary 1921 if (child instanceof BubbleTextView) { 1922 BubbleTextView icon = (BubbleTextView) child; 1923 icon.clearPressedOrFocusedBackground(); 1924 } 1925 1926 mDragController.startDrag(b, dragLayerX, dragLayerY, source, child.getTag(), 1927 DragController.DRAG_ACTION_MOVE, dragVisualizeOffset, dragRect, child.getScaleX()); 1928 b.recycle(); 1929 1930 // Show the scrolling indicator when you pick up an item 1931 showScrollingIndicator(false); 1932 } 1933 1934 void addApplicationShortcut(ShortcutInfo info, CellLayout target, long container, int screen, 1935 int cellX, int cellY, boolean insertAtFirst, int intersectX, int intersectY) { 1936 View view = mLauncher.createShortcut(R.layout.application, target, (ShortcutInfo) info); 1937 1938 final int[] cellXY = new int[2]; 1939 target.findCellForSpanThatIntersects(cellXY, 1, 1, intersectX, intersectY); 1940 addInScreen(view, container, screen, cellXY[0], cellXY[1], 1, 1, insertAtFirst); 1941 LauncherModel.addOrMoveItemInDatabase(mLauncher, info, container, screen, cellXY[0], 1942 cellXY[1]); 1943 } 1944 1945 public boolean transitionStateShouldAllowDrop() { 1946 return ((!isSwitchingState() || mTransitionProgress > 0.5f) && mState != State.SMALL); 1947 } 1948 1949 /** 1950 * {@inheritDoc} 1951 */ 1952 public boolean acceptDrop(DragObject d) { 1953 // If it's an external drop (e.g. from All Apps), check if it should be accepted 1954 CellLayout dropTargetLayout = mDropToLayout; 1955 if (d.dragSource != this) { 1956 // Don't accept the drop if we're not over a screen at time of drop 1957 if (dropTargetLayout == null) { 1958 return false; 1959 } 1960 if (!transitionStateShouldAllowDrop()) return false; 1961 1962 mDragViewVisualCenter = getDragViewVisualCenter(d.x, d.y, d.xOffset, d.yOffset, 1963 d.dragView, mDragViewVisualCenter); 1964 1965 // We want the point to be mapped to the dragTarget. 1966 if (mLauncher.isHotseatLayout(dropTargetLayout)) { 1967 mapPointFromSelfToSibling(mLauncher.getHotseat(), mDragViewVisualCenter); 1968 } else { 1969 mapPointFromSelfToChild(dropTargetLayout, mDragViewVisualCenter, null); 1970 } 1971 1972 int spanX = 1; 1973 int spanY = 1; 1974 if (mDragInfo != null) { 1975 final CellLayout.CellInfo dragCellInfo = mDragInfo; 1976 spanX = dragCellInfo.spanX; 1977 spanY = dragCellInfo.spanY; 1978 } else { 1979 final ItemInfo dragInfo = (ItemInfo) d.dragInfo; 1980 spanX = dragInfo.spanX; 1981 spanY = dragInfo.spanY; 1982 } 1983 1984 int minSpanX = spanX; 1985 int minSpanY = spanY; 1986 if (d.dragInfo instanceof PendingAddWidgetInfo) { 1987 minSpanX = ((PendingAddWidgetInfo) d.dragInfo).minSpanX; 1988 minSpanY = ((PendingAddWidgetInfo) d.dragInfo).minSpanY; 1989 } 1990 1991 mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], 1992 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, dropTargetLayout, 1993 mTargetCell); 1994 float distance = dropTargetLayout.getDistanceFromCell(mDragViewVisualCenter[0], 1995 mDragViewVisualCenter[1], mTargetCell); 1996 if (willCreateUserFolder((ItemInfo) d.dragInfo, dropTargetLayout, 1997 mTargetCell, distance, true)) { 1998 return true; 1999 } 2000 if (willAddToExistingUserFolder((ItemInfo) d.dragInfo, dropTargetLayout, 2001 mTargetCell, distance)) { 2002 return true; 2003 } 2004 2005 int[] resultSpan = new int[2]; 2006 mTargetCell = dropTargetLayout.createArea((int) mDragViewVisualCenter[0], 2007 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, spanX, spanY, 2008 null, mTargetCell, resultSpan, CellLayout.MODE_ACCEPT_DROP); 2009 boolean foundCell = mTargetCell[0] >= 0 && mTargetCell[1] >= 0; 2010 2011 // Don't accept the drop if there's no room for the item 2012 if (!foundCell) { 2013 // Don't show the message if we are dropping on the AllApps button and the hotseat 2014 // is full 2015 boolean isHotseat = mLauncher.isHotseatLayout(dropTargetLayout); 2016 if (mTargetCell != null && isHotseat) { 2017 Hotseat hotseat = mLauncher.getHotseat(); 2018 if (hotseat.isAllAppsButtonRank( 2019 hotseat.getOrderInHotseat(mTargetCell[0], mTargetCell[1]))) { 2020 return false; 2021 } 2022 } 2023 2024 mLauncher.showOutOfSpaceMessage(isHotseat); 2025 return false; 2026 } 2027 } 2028 return true; 2029 } 2030 2031 boolean willCreateUserFolder(ItemInfo info, CellLayout target, int[] targetCell, float 2032 distance, boolean considerTimeout) { 2033 if (distance > mMaxDistanceForFolderCreation) return false; 2034 View dropOverView = target.getChildAt(targetCell[0], targetCell[1]); 2035 2036 if (dropOverView != null) { 2037 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) dropOverView.getLayoutParams(); 2038 if (lp.useTmpCoords && (lp.tmpCellX != lp.cellX || lp.tmpCellY != lp.tmpCellY)) { 2039 return false; 2040 } 2041 } 2042 2043 boolean hasntMoved = false; 2044 if (mDragInfo != null) { 2045 hasntMoved = dropOverView == mDragInfo.cell; 2046 } 2047 2048 if (dropOverView == null || hasntMoved || (considerTimeout && !mCreateUserFolderOnDrop)) { 2049 return false; 2050 } 2051 2052 boolean aboveShortcut = (dropOverView.getTag() instanceof ShortcutInfo); 2053 boolean willBecomeShortcut = 2054 (info.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPLICATION || 2055 info.itemType == LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT); 2056 2057 return (aboveShortcut && willBecomeShortcut); 2058 } 2059 2060 boolean willAddToExistingUserFolder(Object dragInfo, CellLayout target, int[] targetCell, 2061 float distance) { 2062 if (distance > mMaxDistanceForFolderCreation) return false; 2063 View dropOverView = target.getChildAt(targetCell[0], targetCell[1]); 2064 2065 if (dropOverView != null) { 2066 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) dropOverView.getLayoutParams(); 2067 if (lp.useTmpCoords && (lp.tmpCellX != lp.cellX || lp.tmpCellY != lp.tmpCellY)) { 2068 return false; 2069 } 2070 } 2071 2072 if (dropOverView instanceof FolderIcon) { 2073 FolderIcon fi = (FolderIcon) dropOverView; 2074 if (fi.acceptDrop(dragInfo)) { 2075 return true; 2076 } 2077 } 2078 return false; 2079 } 2080 2081 boolean createUserFolderIfNecessary(View newView, long container, CellLayout target, 2082 int[] targetCell, float distance, boolean external, DragView dragView, 2083 Runnable postAnimationRunnable) { 2084 if (distance > mMaxDistanceForFolderCreation) return false; 2085 View v = target.getChildAt(targetCell[0], targetCell[1]); 2086 2087 boolean hasntMoved = false; 2088 if (mDragInfo != null) { 2089 CellLayout cellParent = getParentCellLayoutForView(mDragInfo.cell); 2090 hasntMoved = (mDragInfo.cellX == targetCell[0] && 2091 mDragInfo.cellY == targetCell[1]) && (cellParent == target); 2092 } 2093 2094 if (v == null || hasntMoved || !mCreateUserFolderOnDrop) return false; 2095 mCreateUserFolderOnDrop = false; 2096 final int screen = (targetCell == null) ? mDragInfo.screen : indexOfChild(target); 2097 2098 boolean aboveShortcut = (v.getTag() instanceof ShortcutInfo); 2099 boolean willBecomeShortcut = (newView.getTag() instanceof ShortcutInfo); 2100 2101 if (aboveShortcut && willBecomeShortcut) { 2102 ShortcutInfo sourceInfo = (ShortcutInfo) newView.getTag(); 2103 ShortcutInfo destInfo = (ShortcutInfo) v.getTag(); 2104 // if the drag started here, we need to remove it from the workspace 2105 if (!external) { 2106 getParentCellLayoutForView(mDragInfo.cell).removeView(mDragInfo.cell); 2107 } 2108 2109 Rect folderLocation = new Rect(); 2110 float scale = mLauncher.getDragLayer().getDescendantRectRelativeToSelf(v, folderLocation); 2111 target.removeView(v); 2112 2113 FolderIcon fi = 2114 mLauncher.addFolder(target, container, screen, targetCell[0], targetCell[1]); 2115 destInfo.cellX = -1; 2116 destInfo.cellY = -1; 2117 sourceInfo.cellX = -1; 2118 sourceInfo.cellY = -1; 2119 2120 // If the dragView is null, we can't animate 2121 boolean animate = dragView != null; 2122 if (animate) { 2123 fi.performCreateAnimation(destInfo, v, sourceInfo, dragView, folderLocation, scale, 2124 postAnimationRunnable); 2125 } else { 2126 fi.addItem(destInfo); 2127 fi.addItem(sourceInfo); 2128 } 2129 return true; 2130 } 2131 return false; 2132 } 2133 2134 boolean addToExistingFolderIfNecessary(View newView, CellLayout target, int[] targetCell, 2135 float distance, DragObject d, boolean external) { 2136 if (distance > mMaxDistanceForFolderCreation) return false; 2137 2138 View dropOverView = target.getChildAt(targetCell[0], targetCell[1]); 2139 if (!mAddToExistingFolderOnDrop) return false; 2140 mAddToExistingFolderOnDrop = false; 2141 2142 if (dropOverView instanceof FolderIcon) { 2143 FolderIcon fi = (FolderIcon) dropOverView; 2144 if (fi.acceptDrop(d.dragInfo)) { 2145 fi.onDrop(d); 2146 2147 // if the drag started here, we need to remove it from the workspace 2148 if (!external) { 2149 getParentCellLayoutForView(mDragInfo.cell).removeView(mDragInfo.cell); 2150 } 2151 return true; 2152 } 2153 } 2154 return false; 2155 } 2156 2157 public void onDrop(final DragObject d) { 2158 mDragViewVisualCenter = getDragViewVisualCenter(d.x, d.y, d.xOffset, d.yOffset, d.dragView, 2159 mDragViewVisualCenter); 2160 2161 CellLayout dropTargetLayout = mDropToLayout; 2162 2163 // We want the point to be mapped to the dragTarget. 2164 if (dropTargetLayout != null) { 2165 if (mLauncher.isHotseatLayout(dropTargetLayout)) { 2166 mapPointFromSelfToSibling(mLauncher.getHotseat(), mDragViewVisualCenter); 2167 } else { 2168 mapPointFromSelfToChild(dropTargetLayout, mDragViewVisualCenter, null); 2169 } 2170 } 2171 2172 int snapScreen = -1; 2173 boolean resizeOnDrop = false; 2174 if (d.dragSource != this) { 2175 final int[] touchXY = new int[] { (int) mDragViewVisualCenter[0], 2176 (int) mDragViewVisualCenter[1] }; 2177 onDropExternal(touchXY, d.dragInfo, dropTargetLayout, false, d); 2178 } else if (mDragInfo != null) { 2179 final View cell = mDragInfo.cell; 2180 2181 Runnable resizeRunnable = null; 2182 if (dropTargetLayout != null) { 2183 // Move internally 2184 boolean hasMovedLayouts = (getParentCellLayoutForView(cell) != dropTargetLayout); 2185 boolean hasMovedIntoHotseat = mLauncher.isHotseatLayout(dropTargetLayout); 2186 long container = hasMovedIntoHotseat ? 2187 LauncherSettings.Favorites.CONTAINER_HOTSEAT : 2188 LauncherSettings.Favorites.CONTAINER_DESKTOP; 2189 int screen = (mTargetCell[0] < 0) ? 2190 mDragInfo.screen : indexOfChild(dropTargetLayout); 2191 int spanX = mDragInfo != null ? mDragInfo.spanX : 1; 2192 int spanY = mDragInfo != null ? mDragInfo.spanY : 1; 2193 // First we find the cell nearest to point at which the item is 2194 // dropped, without any consideration to whether there is an item there. 2195 2196 mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], (int) 2197 mDragViewVisualCenter[1], spanX, spanY, dropTargetLayout, mTargetCell); 2198 float distance = dropTargetLayout.getDistanceFromCell(mDragViewVisualCenter[0], 2199 mDragViewVisualCenter[1], mTargetCell); 2200 2201 // If the item being dropped is a shortcut and the nearest drop 2202 // cell also contains a shortcut, then create a folder with the two shortcuts. 2203 if (!mInScrollArea && createUserFolderIfNecessary(cell, container, 2204 dropTargetLayout, mTargetCell, distance, false, d.dragView, null)) { 2205 return; 2206 } 2207 2208 if (addToExistingFolderIfNecessary(cell, dropTargetLayout, mTargetCell, 2209 distance, d, false)) { 2210 return; 2211 } 2212 2213 // Aside from the special case where we're dropping a shortcut onto a shortcut, 2214 // we need to find the nearest cell location that is vacant 2215 ItemInfo item = (ItemInfo) d.dragInfo; 2216 int minSpanX = item.spanX; 2217 int minSpanY = item.spanY; 2218 if (item.minSpanX > 0 && item.minSpanY > 0) { 2219 minSpanX = item.minSpanX; 2220 minSpanY = item.minSpanY; 2221 } 2222 2223 int[] resultSpan = new int[2]; 2224 mTargetCell = dropTargetLayout.createArea((int) mDragViewVisualCenter[0], 2225 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, spanX, spanY, cell, 2226 mTargetCell, resultSpan, CellLayout.MODE_ON_DROP); 2227 2228 boolean foundCell = mTargetCell[0] >= 0 && mTargetCell[1] >= 0; 2229 if (foundCell && (resultSpan[0] != item.spanX || resultSpan[1] != item.spanY)) { 2230 resizeOnDrop = true; 2231 item.spanX = resultSpan[0]; 2232 item.spanY = resultSpan[1]; 2233 AppWidgetHostView awhv = (AppWidgetHostView) cell; 2234 AppWidgetResizeFrame.updateWidgetSizeRanges(awhv, mLauncher, resultSpan[0], 2235 resultSpan[1]); 2236 } 2237 2238 if (mCurrentPage != screen && !hasMovedIntoHotseat) { 2239 snapScreen = screen; 2240 snapToPage(screen); 2241 } 2242 2243 if (foundCell) { 2244 final ItemInfo info = (ItemInfo) cell.getTag(); 2245 if (hasMovedLayouts) { 2246 // Reparent the view 2247 getParentCellLayoutForView(cell).removeView(cell); 2248 addInScreen(cell, container, screen, mTargetCell[0], mTargetCell[1], 2249 info.spanX, info.spanY); 2250 } 2251 2252 // update the item's position after drop 2253 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) cell.getLayoutParams(); 2254 lp.cellX = lp.tmpCellX = mTargetCell[0]; 2255 lp.cellY = lp.tmpCellY = mTargetCell[1]; 2256 lp.cellHSpan = item.spanX; 2257 lp.cellVSpan = item.spanY; 2258 lp.isLockedToGrid = true; 2259 cell.setId(LauncherModel.getCellLayoutChildId(container, mDragInfo.screen, 2260 mTargetCell[0], mTargetCell[1], mDragInfo.spanX, mDragInfo.spanY)); 2261 2262 if (container != LauncherSettings.Favorites.CONTAINER_HOTSEAT && 2263 cell instanceof LauncherAppWidgetHostView) { 2264 final CellLayout cellLayout = dropTargetLayout; 2265 // We post this call so that the widget has a chance to be placed 2266 // in its final location 2267 2268 final LauncherAppWidgetHostView hostView = (LauncherAppWidgetHostView) cell; 2269 AppWidgetProviderInfo pinfo = hostView.getAppWidgetInfo(); 2270 if (pinfo != null && 2271 pinfo.resizeMode != AppWidgetProviderInfo.RESIZE_NONE) { 2272 final Runnable addResizeFrame = new Runnable() { 2273 public void run() { 2274 DragLayer dragLayer = mLauncher.getDragLayer(); 2275 dragLayer.addResizeFrame(info, hostView, cellLayout); 2276 } 2277 }; 2278 resizeRunnable = (new Runnable() { 2279 public void run() { 2280 if (!isPageMoving()) { 2281 addResizeFrame.run(); 2282 } else { 2283 mDelayedResizeRunnable = addResizeFrame; 2284 } 2285 } 2286 }); 2287 } 2288 } 2289 2290 LauncherModel.moveItemInDatabase(mLauncher, info, container, screen, lp.cellX, 2291 lp.cellY); 2292 } else { 2293 // If we can't find a drop location, we return the item to its original position 2294 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) cell.getLayoutParams(); 2295 mTargetCell[0] = lp.cellX; 2296 mTargetCell[1] = lp.cellY; 2297 CellLayout layout = (CellLayout) cell.getParent().getParent(); 2298 layout.markCellsAsOccupiedForView(cell); 2299 } 2300 } 2301 2302 final CellLayout parent = (CellLayout) cell.getParent().getParent(); 2303 final Runnable finalResizeRunnable = resizeRunnable; 2304 // Prepare it to be animated into its new position 2305 // This must be called after the view has been re-parented 2306 final Runnable onCompleteRunnable = new Runnable() { 2307 @Override 2308 public void run() { 2309 mAnimatingViewIntoPlace = false; 2310 updateChildrenLayersEnabled(); 2311 if (finalResizeRunnable != null) { 2312 finalResizeRunnable.run(); 2313 } 2314 } 2315 }; 2316 mAnimatingViewIntoPlace = true; 2317 if (d.dragView.hasDrawn()) { 2318 final ItemInfo info = (ItemInfo) cell.getTag(); 2319 if (info.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET) { 2320 int animationType = resizeOnDrop ? ANIMATE_INTO_POSITION_AND_RESIZE : 2321 ANIMATE_INTO_POSITION_AND_DISAPPEAR; 2322 animateWidgetDrop(info, parent, d.dragView, 2323 onCompleteRunnable, animationType, cell, false); 2324 } else { 2325 int duration = snapScreen < 0 ? -1 : ADJACENT_SCREEN_DROP_DURATION; 2326 mLauncher.getDragLayer().animateViewIntoPosition(d.dragView, cell, duration, 2327 onCompleteRunnable, this); 2328 } 2329 } else { 2330 d.deferDragViewCleanupPostAnimation = false; 2331 cell.setVisibility(VISIBLE); 2332 } 2333 parent.onDropChild(cell); 2334 } 2335 } 2336 2337 public void setFinalScrollForPageChange(int screen) { 2338 if (screen >= 0) { 2339 mSavedScrollX = getScrollX(); 2340 CellLayout cl = (CellLayout) getChildAt(screen); 2341 mSavedTranslationX = cl.getTranslationX(); 2342 mSavedRotationY = cl.getRotationY(); 2343 final int newX = getChildOffset(screen) - getRelativeChildOffset(screen); 2344 setScrollX(newX); 2345 cl.setTranslationX(0f); 2346 cl.setRotationY(0f); 2347 } 2348 } 2349 2350 public void resetFinalScrollForPageChange(int screen) { 2351 if (screen >= 0) { 2352 CellLayout cl = (CellLayout) getChildAt(screen); 2353 setScrollX(mSavedScrollX); 2354 cl.setTranslationX(mSavedTranslationX); 2355 cl.setRotationY(mSavedRotationY); 2356 } 2357 } 2358 2359 public void getViewLocationRelativeToSelf(View v, int[] location) { 2360 getLocationInWindow(location); 2361 int x = location[0]; 2362 int y = location[1]; 2363 2364 v.getLocationInWindow(location); 2365 int vX = location[0]; 2366 int vY = location[1]; 2367 2368 location[0] = vX - x; 2369 location[1] = vY - y; 2370 } 2371 2372 public void onDragEnter(DragObject d) { 2373 mDragEnforcer.onDragEnter(); 2374 mCreateUserFolderOnDrop = false; 2375 mAddToExistingFolderOnDrop = false; 2376 2377 mDropToLayout = null; 2378 CellLayout layout = getCurrentDropLayout(); 2379 setCurrentDropLayout(layout); 2380 setCurrentDragOverlappingLayout(layout); 2381 2382 // Because we don't have space in the Phone UI (the CellLayouts run to the edge) we 2383 // don't need to show the outlines 2384 if (LauncherApplication.isScreenLarge()) { 2385 showOutlines(); 2386 } 2387 } 2388 2389 static Rect getCellLayoutMetrics(Launcher launcher, int orientation) { 2390 Resources res = launcher.getResources(); 2391 Display display = launcher.getWindowManager().getDefaultDisplay(); 2392 Point smallestSize = new Point(); 2393 Point largestSize = new Point(); 2394 display.getCurrentSizeRange(smallestSize, largestSize); 2395 if (orientation == CellLayout.LANDSCAPE) { 2396 if (mLandscapeCellLayoutMetrics == null) { 2397 int paddingLeft = res.getDimensionPixelSize(R.dimen.workspace_left_padding_land); 2398 int paddingRight = res.getDimensionPixelSize(R.dimen.workspace_right_padding_land); 2399 int paddingTop = res.getDimensionPixelSize(R.dimen.workspace_top_padding_land); 2400 int paddingBottom = res.getDimensionPixelSize(R.dimen.workspace_bottom_padding_land); 2401 int width = largestSize.x - paddingLeft - paddingRight; 2402 int height = smallestSize.y - paddingTop - paddingBottom; 2403 mLandscapeCellLayoutMetrics = new Rect(); 2404 CellLayout.getMetrics(mLandscapeCellLayoutMetrics, res, 2405 width, height, LauncherModel.getCellCountX(), LauncherModel.getCellCountY(), 2406 orientation); 2407 } 2408 return mLandscapeCellLayoutMetrics; 2409 } else if (orientation == CellLayout.PORTRAIT) { 2410 if (mPortraitCellLayoutMetrics == null) { 2411 int paddingLeft = res.getDimensionPixelSize(R.dimen.workspace_left_padding_land); 2412 int paddingRight = res.getDimensionPixelSize(R.dimen.workspace_right_padding_land); 2413 int paddingTop = res.getDimensionPixelSize(R.dimen.workspace_top_padding_land); 2414 int paddingBottom = res.getDimensionPixelSize(R.dimen.workspace_bottom_padding_land); 2415 int width = smallestSize.x - paddingLeft - paddingRight; 2416 int height = largestSize.y - paddingTop - paddingBottom; 2417 mPortraitCellLayoutMetrics = new Rect(); 2418 CellLayout.getMetrics(mPortraitCellLayoutMetrics, res, 2419 width, height, LauncherModel.getCellCountX(), LauncherModel.getCellCountY(), 2420 orientation); 2421 } 2422 return mPortraitCellLayoutMetrics; 2423 } 2424 return null; 2425 } 2426 2427 public void onDragExit(DragObject d) { 2428 mDragEnforcer.onDragExit(); 2429 2430 // Here we store the final page that will be dropped to, if the workspace in fact 2431 // receives the drop 2432 if (mInScrollArea) { 2433 mDropToLayout = mDragOverlappingLayout; 2434 } else { 2435 mDropToLayout = mDragTargetLayout; 2436 } 2437 2438 if (mDragMode == DRAG_MODE_CREATE_FOLDER) { 2439 mCreateUserFolderOnDrop = true; 2440 } else if (mDragMode == DRAG_MODE_ADD_TO_FOLDER) { 2441 mAddToExistingFolderOnDrop = true; 2442 } 2443 2444 // Reset the scroll area and previous drag target 2445 onResetScrollArea(); 2446 setCurrentDropLayout(null); 2447 setCurrentDragOverlappingLayout(null); 2448 2449 mSpringLoadedDragController.cancel(); 2450 2451 if (!mIsPageMoving) { 2452 hideOutlines(); 2453 } 2454 } 2455 2456 void setCurrentDropLayout(CellLayout layout) { 2457 if (mDragTargetLayout != null) { 2458 mDragTargetLayout.revertTempState(); 2459 mDragTargetLayout.onDragExit(); 2460 } 2461 mDragTargetLayout = layout; 2462 if (mDragTargetLayout != null) { 2463 mDragTargetLayout.onDragEnter(); 2464 } 2465 cleanupReorder(true); 2466 cleanupFolderCreation(); 2467 setCurrentDropOverCell(-1, -1); 2468 } 2469 2470 void setCurrentDragOverlappingLayout(CellLayout layout) { 2471 if (mDragOverlappingLayout != null) { 2472 mDragOverlappingLayout.setIsDragOverlapping(false); 2473 } 2474 mDragOverlappingLayout = layout; 2475 if (mDragOverlappingLayout != null) { 2476 mDragOverlappingLayout.setIsDragOverlapping(true); 2477 } 2478 invalidate(); 2479 } 2480 2481 void setCurrentDropOverCell(int x, int y) { 2482 if (x != mDragOverX || y != mDragOverY) { 2483 mDragOverX = x; 2484 mDragOverY = y; 2485 setDragMode(DRAG_MODE_NONE); 2486 } 2487 } 2488 2489 void setDragMode(int dragMode) { 2490 if (dragMode != mDragMode) { 2491 if (dragMode == DRAG_MODE_NONE) { 2492 cleanupAddToFolder(); 2493 // We don't want to cancel the re-order alarm every time the target cell changes 2494 // as this feels to slow / unresponsive. 2495 cleanupReorder(false); 2496 cleanupFolderCreation(); 2497 } else if (dragMode == DRAG_MODE_ADD_TO_FOLDER) { 2498 cleanupReorder(true); 2499 cleanupFolderCreation(); 2500 } else if (dragMode == DRAG_MODE_CREATE_FOLDER) { 2501 cleanupAddToFolder(); 2502 cleanupReorder(true); 2503 } else if (dragMode == DRAG_MODE_REORDER) { 2504 cleanupAddToFolder(); 2505 cleanupFolderCreation(); 2506 } 2507 mDragMode = dragMode; 2508 } 2509 } 2510 2511 private void cleanupFolderCreation() { 2512 if (mDragFolderRingAnimator != null) { 2513 mDragFolderRingAnimator.animateToNaturalState(); 2514 } 2515 mFolderCreationAlarm.cancelAlarm(); 2516 } 2517 2518 private void cleanupAddToFolder() { 2519 if (mDragOverFolderIcon != null) { 2520 mDragOverFolderIcon.onDragExit(null); 2521 mDragOverFolderIcon = null; 2522 } 2523 } 2524 2525 private void cleanupReorder(boolean cancelAlarm) { 2526 // Any pending reorders are canceled 2527 if (cancelAlarm) { 2528 mReorderAlarm.cancelAlarm(); 2529 } 2530 mLastReorderX = -1; 2531 mLastReorderY = -1; 2532 } 2533 2534 public DropTarget getDropTargetDelegate(DragObject d) { 2535 return null; 2536 } 2537 2538 /* 2539 * 2540 * Convert the 2D coordinate xy from the parent View's coordinate space to this CellLayout's 2541 * coordinate space. The argument xy is modified with the return result. 2542 * 2543 */ 2544 void mapPointFromSelfToChild(View v, float[] xy) { 2545 mapPointFromSelfToChild(v, xy, null); 2546 } 2547 2548 /* 2549 * 2550 * Convert the 2D coordinate xy from the parent View's coordinate space to this CellLayout's 2551 * coordinate space. The argument xy is modified with the return result. 2552 * 2553 * if cachedInverseMatrix is not null, this method will just use that matrix instead of 2554 * computing it itself; we use this to avoid redundant matrix inversions in 2555 * findMatchingPageForDragOver 2556 * 2557 */ 2558 void mapPointFromSelfToChild(View v, float[] xy, Matrix cachedInverseMatrix) { 2559 if (cachedInverseMatrix == null) { 2560 v.getMatrix().invert(mTempInverseMatrix); 2561 cachedInverseMatrix = mTempInverseMatrix; 2562 } 2563 int scrollX = getScrollX(); 2564 if (mNextPage != INVALID_PAGE) { 2565 scrollX = mScroller.getFinalX(); 2566 } 2567 xy[0] = xy[0] + scrollX - v.getLeft(); 2568 xy[1] = xy[1] + getScrollY() - v.getTop(); 2569 cachedInverseMatrix.mapPoints(xy); 2570 } 2571 2572 /* 2573 * Maps a point from the Workspace's coordinate system to another sibling view's. (Workspace 2574 * covers the full screen) 2575 */ 2576 void mapPointFromSelfToSibling(View v, float[] xy) { 2577 xy[0] = xy[0] - v.getLeft(); 2578 xy[1] = xy[1] - v.getTop(); 2579 } 2580 2581 void mapPointFromSelfToHotseatLayout(Hotseat hotseat, float[] xy) { 2582 xy[0] = xy[0] - hotseat.getLeft() - hotseat.getLayout().getLeft(); 2583 xy[1] = xy[1] - hotseat.getTop() - hotseat.getLayout().getTop(); 2584 } 2585 2586 /* 2587 * 2588 * Convert the 2D coordinate xy from this CellLayout's coordinate space to 2589 * the parent View's coordinate space. The argument xy is modified with the return result. 2590 * 2591 */ 2592 void mapPointFromChildToSelf(View v, float[] xy) { 2593 v.getMatrix().mapPoints(xy); 2594 int scrollX = getScrollX(); 2595 if (mNextPage != INVALID_PAGE) { 2596 scrollX = mScroller.getFinalX(); 2597 } 2598 xy[0] -= (scrollX - v.getLeft()); 2599 xy[1] -= (getScrollY() - v.getTop()); 2600 } 2601 2602 static private float squaredDistance(float[] point1, float[] point2) { 2603 float distanceX = point1[0] - point2[0]; 2604 float distanceY = point2[1] - point2[1]; 2605 return distanceX * distanceX + distanceY * distanceY; 2606 } 2607 2608 /* 2609 * 2610 * Returns true if the passed CellLayout cl overlaps with dragView 2611 * 2612 */ 2613 boolean overlaps(CellLayout cl, DragView dragView, 2614 int dragViewX, int dragViewY, Matrix cachedInverseMatrix) { 2615 // Transform the coordinates of the item being dragged to the CellLayout's coordinates 2616 final float[] draggedItemTopLeft = mTempDragCoordinates; 2617 draggedItemTopLeft[0] = dragViewX; 2618 draggedItemTopLeft[1] = dragViewY; 2619 final float[] draggedItemBottomRight = mTempDragBottomRightCoordinates; 2620 draggedItemBottomRight[0] = draggedItemTopLeft[0] + dragView.getDragRegionWidth(); 2621 draggedItemBottomRight[1] = draggedItemTopLeft[1] + dragView.getDragRegionHeight(); 2622 2623 // Transform the dragged item's top left coordinates 2624 // to the CellLayout's local coordinates 2625 mapPointFromSelfToChild(cl, draggedItemTopLeft, cachedInverseMatrix); 2626 float overlapRegionLeft = Math.max(0f, draggedItemTopLeft[0]); 2627 float overlapRegionTop = Math.max(0f, draggedItemTopLeft[1]); 2628 2629 if (overlapRegionLeft <= cl.getWidth() && overlapRegionTop >= 0) { 2630 // Transform the dragged item's bottom right coordinates 2631 // to the CellLayout's local coordinates 2632 mapPointFromSelfToChild(cl, draggedItemBottomRight, cachedInverseMatrix); 2633 float overlapRegionRight = Math.min(cl.getWidth(), draggedItemBottomRight[0]); 2634 float overlapRegionBottom = Math.min(cl.getHeight(), draggedItemBottomRight[1]); 2635 2636 if (overlapRegionRight >= 0 && overlapRegionBottom <= cl.getHeight()) { 2637 float overlap = (overlapRegionRight - overlapRegionLeft) * 2638 (overlapRegionBottom - overlapRegionTop); 2639 if (overlap > 0) { 2640 return true; 2641 } 2642 } 2643 } 2644 return false; 2645 } 2646 2647 /* 2648 * 2649 * This method returns the CellLayout that is currently being dragged to. In order to drag 2650 * to a CellLayout, either the touch point must be directly over the CellLayout, or as a second 2651 * strategy, we see if the dragView is overlapping any CellLayout and choose the closest one 2652 * 2653 * Return null if no CellLayout is currently being dragged over 2654 * 2655 */ 2656 private CellLayout findMatchingPageForDragOver( 2657 DragView dragView, float originX, float originY, boolean exact) { 2658 // We loop through all the screens (ie CellLayouts) and see which ones overlap 2659 // with the item being dragged and then choose the one that's closest to the touch point 2660 final int screenCount = getChildCount(); 2661 CellLayout bestMatchingScreen = null; 2662 float smallestDistSoFar = Float.MAX_VALUE; 2663 2664 for (int i = 0; i < screenCount; i++) { 2665 CellLayout cl = (CellLayout) getChildAt(i); 2666 2667 final float[] touchXy = {originX, originY}; 2668 // Transform the touch coordinates to the CellLayout's local coordinates 2669 // If the touch point is within the bounds of the cell layout, we can return immediately 2670 cl.getMatrix().invert(mTempInverseMatrix); 2671 mapPointFromSelfToChild(cl, touchXy, mTempInverseMatrix); 2672 2673 if (touchXy[0] >= 0 && touchXy[0] <= cl.getWidth() && 2674 touchXy[1] >= 0 && touchXy[1] <= cl.getHeight()) { 2675 return cl; 2676 } 2677 2678 if (!exact) { 2679 // Get the center of the cell layout in screen coordinates 2680 final float[] cellLayoutCenter = mTempCellLayoutCenterCoordinates; 2681 cellLayoutCenter[0] = cl.getWidth()/2; 2682 cellLayoutCenter[1] = cl.getHeight()/2; 2683 mapPointFromChildToSelf(cl, cellLayoutCenter); 2684 2685 touchXy[0] = originX; 2686 touchXy[1] = originY; 2687 2688 // Calculate the distance between the center of the CellLayout 2689 // and the touch point 2690 float dist = squaredDistance(touchXy, cellLayoutCenter); 2691 2692 if (dist < smallestDistSoFar) { 2693 smallestDistSoFar = dist; 2694 bestMatchingScreen = cl; 2695 } 2696 } 2697 } 2698 return bestMatchingScreen; 2699 } 2700 2701 // This is used to compute the visual center of the dragView. This point is then 2702 // used to visualize drop locations and determine where to drop an item. The idea is that 2703 // the visual center represents the user's interpretation of where the item is, and hence 2704 // is the appropriate point to use when determining drop location. 2705 private float[] getDragViewVisualCenter(int x, int y, int xOffset, int yOffset, 2706 DragView dragView, float[] recycle) { 2707 float res[]; 2708 if (recycle == null) { 2709 res = new float[2]; 2710 } else { 2711 res = recycle; 2712 } 2713 2714 // First off, the drag view has been shifted in a way that is not represented in the 2715 // x and y values or the x/yOffsets. Here we account for that shift. 2716 x += getResources().getDimensionPixelSize(R.dimen.dragViewOffsetX); 2717 y += getResources().getDimensionPixelSize(R.dimen.dragViewOffsetY); 2718 2719 // These represent the visual top and left of drag view if a dragRect was provided. 2720 // If a dragRect was not provided, then they correspond to the actual view left and 2721 // top, as the dragRect is in that case taken to be the entire dragView. 2722 // R.dimen.dragViewOffsetY. 2723 int left = x - xOffset; 2724 int top = y - yOffset; 2725 2726 // In order to find the visual center, we shift by half the dragRect 2727 res[0] = left + dragView.getDragRegion().width() / 2; 2728 res[1] = top + dragView.getDragRegion().height() / 2; 2729 2730 return res; 2731 } 2732 2733 private boolean isDragWidget(DragObject d) { 2734 return (d.dragInfo instanceof LauncherAppWidgetInfo || 2735 d.dragInfo instanceof PendingAddWidgetInfo); 2736 } 2737 private boolean isExternalDragWidget(DragObject d) { 2738 return d.dragSource != this && isDragWidget(d); 2739 } 2740 2741 public void onDragOver(DragObject d) { 2742 // Skip drag over events while we are dragging over side pages 2743 if (mInScrollArea || mIsSwitchingState || mState == State.SMALL) return; 2744 2745 Rect r = new Rect(); 2746 CellLayout layout = null; 2747 ItemInfo item = (ItemInfo) d.dragInfo; 2748 2749 // Ensure that we have proper spans for the item that we are dropping 2750 if (item.spanX < 0 || item.spanY < 0) throw new RuntimeException("Improper spans found"); 2751 mDragViewVisualCenter = getDragViewVisualCenter(d.x, d.y, d.xOffset, d.yOffset, 2752 d.dragView, mDragViewVisualCenter); 2753 2754 final View child = (mDragInfo == null) ? null : mDragInfo.cell; 2755 // Identify whether we have dragged over a side page 2756 if (isSmall()) { 2757 if (mLauncher.getHotseat() != null && !isExternalDragWidget(d)) { 2758 mLauncher.getHotseat().getHitRect(r); 2759 if (r.contains(d.x, d.y)) { 2760 layout = mLauncher.getHotseat().getLayout(); 2761 } 2762 } 2763 if (layout == null) { 2764 layout = findMatchingPageForDragOver(d.dragView, d.x, d.y, false); 2765 } 2766 if (layout != mDragTargetLayout) { 2767 2768 setCurrentDropLayout(layout); 2769 setCurrentDragOverlappingLayout(layout); 2770 2771 boolean isInSpringLoadedMode = (mState == State.SPRING_LOADED); 2772 if (isInSpringLoadedMode) { 2773 if (mLauncher.isHotseatLayout(layout)) { 2774 mSpringLoadedDragController.cancel(); 2775 } else { 2776 mSpringLoadedDragController.setAlarm(mDragTargetLayout); 2777 } 2778 } 2779 } 2780 } else { 2781 // Test to see if we are over the hotseat otherwise just use the current page 2782 if (mLauncher.getHotseat() != null && !isDragWidget(d)) { 2783 mLauncher.getHotseat().getHitRect(r); 2784 if (r.contains(d.x, d.y)) { 2785 layout = mLauncher.getHotseat().getLayout(); 2786 } 2787 } 2788 if (layout == null) { 2789 layout = getCurrentDropLayout(); 2790 } 2791 if (layout != mDragTargetLayout) { 2792 setCurrentDropLayout(layout); 2793 setCurrentDragOverlappingLayout(layout); 2794 } 2795 } 2796 2797 // Handle the drag over 2798 if (mDragTargetLayout != null) { 2799 // We want the point to be mapped to the dragTarget. 2800 if (mLauncher.isHotseatLayout(mDragTargetLayout)) { 2801 mapPointFromSelfToHotseatLayout(mLauncher.getHotseat(), mDragViewVisualCenter); 2802 } else { 2803 mapPointFromSelfToChild(mDragTargetLayout, mDragViewVisualCenter, null); 2804 } 2805 2806 ItemInfo info = (ItemInfo) d.dragInfo; 2807 2808 mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], 2809 (int) mDragViewVisualCenter[1], item.spanX, item.spanY, 2810 mDragTargetLayout, mTargetCell); 2811 2812 setCurrentDropOverCell(mTargetCell[0], mTargetCell[1]); 2813 2814 float targetCellDistance = mDragTargetLayout.getDistanceFromCell( 2815 mDragViewVisualCenter[0], mDragViewVisualCenter[1], mTargetCell); 2816 2817 final View dragOverView = mDragTargetLayout.getChildAt(mTargetCell[0], 2818 mTargetCell[1]); 2819 2820 manageFolderFeedback(info, mDragTargetLayout, mTargetCell, 2821 targetCellDistance, dragOverView); 2822 2823 int minSpanX = item.spanX; 2824 int minSpanY = item.spanY; 2825 if (item.minSpanX > 0 && item.minSpanY > 0) { 2826 minSpanX = item.minSpanX; 2827 minSpanY = item.minSpanY; 2828 } 2829 2830 boolean nearestDropOccupied = mDragTargetLayout.isNearestDropLocationOccupied((int) 2831 mDragViewVisualCenter[0], (int) mDragViewVisualCenter[1], item.spanX, 2832 item.spanY, child, mTargetCell); 2833 2834 if (!nearestDropOccupied) { 2835 mDragTargetLayout.visualizeDropLocation(child, mDragOutline, 2836 (int) mDragViewVisualCenter[0], (int) mDragViewVisualCenter[1], 2837 mTargetCell[0], mTargetCell[1], item.spanX, item.spanY, false, 2838 d.dragView.getDragVisualizeOffset(), d.dragView.getDragRegion()); 2839 } else if ((mDragMode == DRAG_MODE_NONE || mDragMode == DRAG_MODE_REORDER) 2840 && !mReorderAlarm.alarmPending() && (mLastReorderX != mTargetCell[0] || 2841 mLastReorderY != mTargetCell[1])) { 2842 2843 // Otherwise, if we aren't adding to or creating a folder and there's no pending 2844 // reorder, then we schedule a reorder 2845 ReorderAlarmListener listener = new ReorderAlarmListener(mDragViewVisualCenter, 2846 minSpanX, minSpanY, item.spanX, item.spanY, d.dragView, child); 2847 mReorderAlarm.setOnAlarmListener(listener); 2848 mReorderAlarm.setAlarm(REORDER_TIMEOUT); 2849 } 2850 2851 if (mDragMode == DRAG_MODE_CREATE_FOLDER || mDragMode == DRAG_MODE_ADD_TO_FOLDER || 2852 !nearestDropOccupied) { 2853 if (mDragTargetLayout != null) { 2854 mDragTargetLayout.revertTempState(); 2855 } 2856 } 2857 } 2858 } 2859 2860 private void manageFolderFeedback(ItemInfo info, CellLayout targetLayout, 2861 int[] targetCell, float distance, View dragOverView) { 2862 boolean userFolderPending = willCreateUserFolder(info, targetLayout, targetCell, distance, 2863 false); 2864 2865 if (mDragMode == DRAG_MODE_NONE && userFolderPending && 2866 !mFolderCreationAlarm.alarmPending()) { 2867 mFolderCreationAlarm.setOnAlarmListener(new 2868 FolderCreationAlarmListener(targetLayout, targetCell[0], targetCell[1])); 2869 mFolderCreationAlarm.setAlarm(FOLDER_CREATION_TIMEOUT); 2870 return; 2871 } 2872 2873 boolean willAddToFolder = 2874 willAddToExistingUserFolder(info, targetLayout, targetCell, distance); 2875 2876 if (willAddToFolder && mDragMode == DRAG_MODE_NONE) { 2877 mDragOverFolderIcon = ((FolderIcon) dragOverView); 2878 mDragOverFolderIcon.onDragEnter(info); 2879 if (targetLayout != null) { 2880 targetLayout.clearDragOutlines(); 2881 } 2882 setDragMode(DRAG_MODE_ADD_TO_FOLDER); 2883 return; 2884 } 2885 2886 if (mDragMode == DRAG_MODE_ADD_TO_FOLDER && !willAddToFolder) { 2887 setDragMode(DRAG_MODE_NONE); 2888 } 2889 if (mDragMode == DRAG_MODE_CREATE_FOLDER && !userFolderPending) { 2890 setDragMode(DRAG_MODE_NONE); 2891 } 2892 2893 return; 2894 } 2895 2896 class FolderCreationAlarmListener implements OnAlarmListener { 2897 CellLayout layout; 2898 int cellX; 2899 int cellY; 2900 2901 public FolderCreationAlarmListener(CellLayout layout, int cellX, int cellY) { 2902 this.layout = layout; 2903 this.cellX = cellX; 2904 this.cellY = cellY; 2905 } 2906 2907 public void onAlarm(Alarm alarm) { 2908 if (mDragFolderRingAnimator == null) { 2909 mDragFolderRingAnimator = new FolderRingAnimator(mLauncher, null); 2910 } 2911 mDragFolderRingAnimator.setCell(cellX, cellY); 2912 mDragFolderRingAnimator.setCellLayout(layout); 2913 mDragFolderRingAnimator.animateToAcceptState(); 2914 layout.showFolderAccept(mDragFolderRingAnimator); 2915 layout.clearDragOutlines(); 2916 setDragMode(DRAG_MODE_CREATE_FOLDER); 2917 } 2918 } 2919 2920 class ReorderAlarmListener implements OnAlarmListener { 2921 float[] dragViewCenter; 2922 int minSpanX, minSpanY, spanX, spanY; 2923 DragView dragView; 2924 View child; 2925 2926 public ReorderAlarmListener(float[] dragViewCenter, int minSpanX, int minSpanY, int spanX, 2927 int spanY, DragView dragView, View child) { 2928 this.dragViewCenter = dragViewCenter; 2929 this.minSpanX = minSpanX; 2930 this.minSpanY = minSpanY; 2931 this.spanX = spanX; 2932 this.spanY = spanY; 2933 this.child = child; 2934 this.dragView = dragView; 2935 } 2936 2937 public void onAlarm(Alarm alarm) { 2938 int[] resultSpan = new int[2]; 2939 mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], 2940 (int) mDragViewVisualCenter[1], spanX, spanY, mDragTargetLayout, mTargetCell); 2941 mLastReorderX = mTargetCell[0]; 2942 mLastReorderY = mTargetCell[1]; 2943 2944 mTargetCell = mDragTargetLayout.createArea((int) mDragViewVisualCenter[0], 2945 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, spanX, spanY, 2946 child, mTargetCell, resultSpan, CellLayout.MODE_DRAG_OVER); 2947 2948 if (mTargetCell[0] < 0 || mTargetCell[1] < 0) { 2949 mDragTargetLayout.revertTempState(); 2950 } else { 2951 setDragMode(DRAG_MODE_REORDER); 2952 } 2953 2954 boolean resize = resultSpan[0] != spanX || resultSpan[1] != spanY; 2955 mDragTargetLayout.visualizeDropLocation(child, mDragOutline, 2956 (int) mDragViewVisualCenter[0], (int) mDragViewVisualCenter[1], 2957 mTargetCell[0], mTargetCell[1], resultSpan[0], resultSpan[1], resize, 2958 dragView.getDragVisualizeOffset(), dragView.getDragRegion()); 2959 } 2960 } 2961 2962 @Override 2963 public void getHitRect(Rect outRect) { 2964 // We want the workspace to have the whole area of the display (it will find the correct 2965 // cell layout to drop to in the existing drag/drop logic. 2966 outRect.set(0, 0, mDisplaySize.x, mDisplaySize.y); 2967 } 2968 2969 /** 2970 * Add the item specified by dragInfo to the given layout. 2971 * @return true if successful 2972 */ 2973 public boolean addExternalItemToScreen(ItemInfo dragInfo, CellLayout layout) { 2974 if (layout.findCellForSpan(mTempEstimate, dragInfo.spanX, dragInfo.spanY)) { 2975 onDropExternal(dragInfo.dropPos, (ItemInfo) dragInfo, (CellLayout) layout, false); 2976 return true; 2977 } 2978 mLauncher.showOutOfSpaceMessage(mLauncher.isHotseatLayout(layout)); 2979 return false; 2980 } 2981 2982 private void onDropExternal(int[] touchXY, Object dragInfo, 2983 CellLayout cellLayout, boolean insertAtFirst) { 2984 onDropExternal(touchXY, dragInfo, cellLayout, insertAtFirst, null); 2985 } 2986 2987 /** 2988 * Drop an item that didn't originate on one of the workspace screens. 2989 * It may have come from Launcher (e.g. from all apps or customize), or it may have 2990 * come from another app altogether. 2991 * 2992 * NOTE: This can also be called when we are outside of a drag event, when we want 2993 * to add an item to one of the workspace screens. 2994 */ 2995 private void onDropExternal(final int[] touchXY, final Object dragInfo, 2996 final CellLayout cellLayout, boolean insertAtFirst, DragObject d) { 2997 final Runnable exitSpringLoadedRunnable = new Runnable() { 2998 @Override 2999 public void run() { 3000 mLauncher.exitSpringLoadedDragModeDelayed(true, false, null); 3001 } 3002 }; 3003 3004 ItemInfo info = (ItemInfo) dragInfo; 3005 int spanX = info.spanX; 3006 int spanY = info.spanY; 3007 if (mDragInfo != null) { 3008 spanX = mDragInfo.spanX; 3009 spanY = mDragInfo.spanY; 3010 } 3011 3012 final long container = mLauncher.isHotseatLayout(cellLayout) ? 3013 LauncherSettings.Favorites.CONTAINER_HOTSEAT : 3014 LauncherSettings.Favorites.CONTAINER_DESKTOP; 3015 final int screen = indexOfChild(cellLayout); 3016 if (!mLauncher.isHotseatLayout(cellLayout) && screen != mCurrentPage 3017 && mState != State.SPRING_LOADED) { 3018 snapToPage(screen); 3019 } 3020 3021 if (info instanceof PendingAddItemInfo) { 3022 final PendingAddItemInfo pendingInfo = (PendingAddItemInfo) dragInfo; 3023 3024 boolean findNearestVacantCell = true; 3025 if (pendingInfo.itemType == LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT) { 3026 mTargetCell = findNearestArea((int) touchXY[0], (int) touchXY[1], spanX, spanY, 3027 cellLayout, mTargetCell); 3028 float distance = cellLayout.getDistanceFromCell(mDragViewVisualCenter[0], 3029 mDragViewVisualCenter[1], mTargetCell); 3030 if (willCreateUserFolder((ItemInfo) d.dragInfo, cellLayout, mTargetCell, 3031 distance, true) || willAddToExistingUserFolder((ItemInfo) d.dragInfo, 3032 cellLayout, mTargetCell, distance)) { 3033 findNearestVacantCell = false; 3034 } 3035 } 3036 3037 final ItemInfo item = (ItemInfo) d.dragInfo; 3038 if (findNearestVacantCell) { 3039 int minSpanX = item.spanX; 3040 int minSpanY = item.spanY; 3041 if (item.minSpanX > 0 && item.minSpanY > 0) { 3042 minSpanX = item.minSpanX; 3043 minSpanY = item.minSpanY; 3044 } 3045 int[] resultSpan = new int[2]; 3046 mTargetCell = cellLayout.createArea((int) mDragViewVisualCenter[0], 3047 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, info.spanX, info.spanY, 3048 null, mTargetCell, resultSpan, CellLayout.MODE_ON_DROP_EXTERNAL); 3049 item.spanX = resultSpan[0]; 3050 item.spanY = resultSpan[1]; 3051 } 3052 3053 Runnable onAnimationCompleteRunnable = new Runnable() { 3054 @Override 3055 public void run() { 3056 // When dragging and dropping from customization tray, we deal with creating 3057 // widgets/shortcuts/folders in a slightly different way 3058 switch (pendingInfo.itemType) { 3059 case LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET: 3060 int span[] = new int[2]; 3061 span[0] = item.spanX; 3062 span[1] = item.spanY; 3063 mLauncher.addAppWidgetFromDrop((PendingAddWidgetInfo) pendingInfo, 3064 container, screen, mTargetCell, span, null); 3065 break; 3066 case LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT: 3067 mLauncher.processShortcutFromDrop(pendingInfo.componentName, 3068 container, screen, mTargetCell, null); 3069 break; 3070 default: 3071 throw new IllegalStateException("Unknown item type: " + 3072 pendingInfo.itemType); 3073 } 3074 } 3075 }; 3076 View finalView = pendingInfo.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET 3077 ? ((PendingAddWidgetInfo) pendingInfo).boundWidget : null; 3078 int animationStyle = ANIMATE_INTO_POSITION_AND_DISAPPEAR; 3079 if (pendingInfo.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET && 3080 ((PendingAddWidgetInfo) pendingInfo).info.configure != null) { 3081 animationStyle = ANIMATE_INTO_POSITION_AND_REMAIN; 3082 } 3083 animateWidgetDrop(info, cellLayout, d.dragView, onAnimationCompleteRunnable, 3084 animationStyle, finalView, true); 3085 } else { 3086 // This is for other drag/drop cases, like dragging from All Apps 3087 View view = null; 3088 3089 switch (info.itemType) { 3090 case LauncherSettings.Favorites.ITEM_TYPE_APPLICATION: 3091 case LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT: 3092 if (info.container == NO_ID && info instanceof ApplicationInfo) { 3093 // Came from all apps -- make a copy 3094 info = new ShortcutInfo((ApplicationInfo) info); 3095 } 3096 view = mLauncher.createShortcut(R.layout.application, cellLayout, 3097 (ShortcutInfo) info); 3098 break; 3099 case LauncherSettings.Favorites.ITEM_TYPE_FOLDER: 3100 view = FolderIcon.fromXml(R.layout.folder_icon, mLauncher, cellLayout, 3101 (FolderInfo) info, mIconCache); 3102 break; 3103 default: 3104 throw new IllegalStateException("Unknown item type: " + info.itemType); 3105 } 3106 3107 // First we find the cell nearest to point at which the item is 3108 // dropped, without any consideration to whether there is an item there. 3109 if (touchXY != null) { 3110 mTargetCell = findNearestArea((int) touchXY[0], (int) touchXY[1], spanX, spanY, 3111 cellLayout, mTargetCell); 3112 float distance = cellLayout.getDistanceFromCell(mDragViewVisualCenter[0], 3113 mDragViewVisualCenter[1], mTargetCell); 3114 d.postAnimationRunnable = exitSpringLoadedRunnable; 3115 if (createUserFolderIfNecessary(view, container, cellLayout, mTargetCell, distance, 3116 true, d.dragView, d.postAnimationRunnable)) { 3117 return; 3118 } 3119 if (addToExistingFolderIfNecessary(view, cellLayout, mTargetCell, distance, d, 3120 true)) { 3121 return; 3122 } 3123 } 3124 3125 if (touchXY != null) { 3126 // when dragging and dropping, just find the closest free spot 3127 mTargetCell = cellLayout.createArea((int) mDragViewVisualCenter[0], 3128 (int) mDragViewVisualCenter[1], 1, 1, 1, 1, 3129 null, mTargetCell, null, CellLayout.MODE_ON_DROP_EXTERNAL); 3130 } else { 3131 cellLayout.findCellForSpan(mTargetCell, 1, 1); 3132 } 3133 addInScreen(view, container, screen, mTargetCell[0], mTargetCell[1], info.spanX, 3134 info.spanY, insertAtFirst); 3135 cellLayout.onDropChild(view); 3136 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) view.getLayoutParams(); 3137 cellLayout.getShortcutsAndWidgets().measureChild(view); 3138 3139 3140 LauncherModel.addOrMoveItemInDatabase(mLauncher, info, container, screen, 3141 lp.cellX, lp.cellY); 3142 3143 if (d.dragView != null) { 3144 // We wrap the animation call in the temporary set and reset of the current 3145 // cellLayout to its final transform -- this means we animate the drag view to 3146 // the correct final location. 3147 setFinalTransitionTransform(cellLayout); 3148 mLauncher.getDragLayer().animateViewIntoPosition(d.dragView, view, 3149 exitSpringLoadedRunnable); 3150 resetTransitionTransform(cellLayout); 3151 } 3152 } 3153 } 3154 3155 public Bitmap createWidgetBitmap(ItemInfo widgetInfo, View layout) { 3156 int[] unScaledSize = mLauncher.getWorkspace().estimateItemSize(widgetInfo.spanX, 3157 widgetInfo.spanY, widgetInfo, false); 3158 int visibility = layout.getVisibility(); 3159 layout.setVisibility(VISIBLE); 3160 3161 int width = MeasureSpec.makeMeasureSpec(unScaledSize[0], MeasureSpec.EXACTLY); 3162 int height = MeasureSpec.makeMeasureSpec(unScaledSize[1], MeasureSpec.EXACTLY); 3163 Bitmap b = Bitmap.createBitmap(unScaledSize[0], unScaledSize[1], 3164 Bitmap.Config.ARGB_8888); 3165 Canvas c = new Canvas(b); 3166 3167 layout.measure(width, height); 3168 layout.layout(0, 0, unScaledSize[0], unScaledSize[1]); 3169 layout.draw(c); 3170 c.setBitmap(null); 3171 layout.setVisibility(visibility); 3172 return b; 3173 } 3174 3175 private void getFinalPositionForDropAnimation(int[] loc, float[] scaleXY, 3176 DragView dragView, CellLayout layout, ItemInfo info, int[] targetCell, 3177 boolean external, boolean scale) { 3178 // Now we animate the dragView, (ie. the widget or shortcut preview) into its final 3179 // location and size on the home screen. 3180 int spanX = info.spanX; 3181 int spanY = info.spanY; 3182 3183 Rect r = estimateItemPosition(layout, info, targetCell[0], targetCell[1], spanX, spanY); 3184 loc[0] = r.left; 3185 loc[1] = r.top; 3186 3187 setFinalTransitionTransform(layout); 3188 float cellLayoutScale = 3189 mLauncher.getDragLayer().getDescendantCoordRelativeToSelf(layout, loc); 3190 resetTransitionTransform(layout); 3191 3192 float dragViewScaleX; 3193 float dragViewScaleY; 3194 if (scale) { 3195 dragViewScaleX = (1.0f * r.width()) / dragView.getMeasuredWidth(); 3196 dragViewScaleY = (1.0f * r.height()) / dragView.getMeasuredHeight(); 3197 } else { 3198 dragViewScaleX = 1f; 3199 dragViewScaleY = 1f; 3200 } 3201 3202 // The animation will scale the dragView about its center, so we need to center about 3203 // the final location. 3204 loc[0] -= (dragView.getMeasuredWidth() - cellLayoutScale * r.width()) / 2; 3205 loc[1] -= (dragView.getMeasuredHeight() - cellLayoutScale * r.height()) / 2; 3206 3207 scaleXY[0] = dragViewScaleX * cellLayoutScale; 3208 scaleXY[1] = dragViewScaleY * cellLayoutScale; 3209 } 3210 3211 public void animateWidgetDrop(ItemInfo info, CellLayout cellLayout, DragView dragView, 3212 final Runnable onCompleteRunnable, int animationType, final View finalView, 3213 boolean external) { 3214 Rect from = new Rect(); 3215 mLauncher.getDragLayer().getViewRectRelativeToSelf(dragView, from); 3216 3217 int[] finalPos = new int[2]; 3218 float scaleXY[] = new float[2]; 3219 boolean scalePreview = !(info instanceof PendingAddShortcutInfo); 3220 getFinalPositionForDropAnimation(finalPos, scaleXY, dragView, cellLayout, info, mTargetCell, 3221 external, scalePreview); 3222 3223 Resources res = mLauncher.getResources(); 3224 int duration = res.getInteger(R.integer.config_dropAnimMaxDuration) - 200; 3225 3226 // In the case where we've prebound the widget, we remove it from the DragLayer 3227 if (finalView instanceof AppWidgetHostView && external) { 3228 Log.d(TAG, "6557954 Animate widget drop, final view is appWidgetHostView"); 3229 mLauncher.getDragLayer().removeView(finalView); 3230 } 3231 if ((animationType == ANIMATE_INTO_POSITION_AND_RESIZE || external) && finalView != null) { 3232 Bitmap crossFadeBitmap = createWidgetBitmap(info, finalView); 3233 dragView.setCrossFadeBitmap(crossFadeBitmap); 3234 dragView.crossFade((int) (duration * 0.8f)); 3235 } else if (info.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET && external) { 3236 scaleXY[0] = scaleXY[1] = Math.min(scaleXY[0], scaleXY[1]); 3237 } 3238 3239 DragLayer dragLayer = mLauncher.getDragLayer(); 3240 if (animationType == CANCEL_TWO_STAGE_WIDGET_DROP_ANIMATION) { 3241 mLauncher.getDragLayer().animateViewIntoPosition(dragView, finalPos, 0f, 0.1f, 0.1f, 3242 DragLayer.ANIMATION_END_DISAPPEAR, onCompleteRunnable, duration); 3243 } else { 3244 int endStyle; 3245 if (animationType == ANIMATE_INTO_POSITION_AND_REMAIN) { 3246 endStyle = DragLayer.ANIMATION_END_REMAIN_VISIBLE; 3247 } else { 3248 endStyle = DragLayer.ANIMATION_END_DISAPPEAR;; 3249 } 3250 3251 Runnable onComplete = new Runnable() { 3252 @Override 3253 public void run() { 3254 if (finalView != null) { 3255 finalView.setVisibility(VISIBLE); 3256 } 3257 if (onCompleteRunnable != null) { 3258 onCompleteRunnable.run(); 3259 } 3260 } 3261 }; 3262 dragLayer.animateViewIntoPosition(dragView, from.left, from.top, finalPos[0], 3263 finalPos[1], 1, 1, 1, scaleXY[0], scaleXY[1], onComplete, endStyle, 3264 duration, this); 3265 } 3266 } 3267 3268 public void setFinalTransitionTransform(CellLayout layout) { 3269 if (isSwitchingState()) { 3270 int index = indexOfChild(layout); 3271 mCurrentScaleX = layout.getScaleX(); 3272 mCurrentScaleY = layout.getScaleY(); 3273 mCurrentTranslationX = layout.getTranslationX(); 3274 mCurrentTranslationY = layout.getTranslationY(); 3275 mCurrentRotationY = layout.getRotationY(); 3276 layout.setScaleX(mNewScaleXs[index]); 3277 layout.setScaleY(mNewScaleYs[index]); 3278 layout.setTranslationX(mNewTranslationXs[index]); 3279 layout.setTranslationY(mNewTranslationYs[index]); 3280 layout.setRotationY(mNewRotationYs[index]); 3281 } 3282 } 3283 public void resetTransitionTransform(CellLayout layout) { 3284 if (isSwitchingState()) { 3285 mCurrentScaleX = layout.getScaleX(); 3286 mCurrentScaleY = layout.getScaleY(); 3287 mCurrentTranslationX = layout.getTranslationX(); 3288 mCurrentTranslationY = layout.getTranslationY(); 3289 mCurrentRotationY = layout.getRotationY(); 3290 layout.setScaleX(mCurrentScaleX); 3291 layout.setScaleY(mCurrentScaleY); 3292 layout.setTranslationX(mCurrentTranslationX); 3293 layout.setTranslationY(mCurrentTranslationY); 3294 layout.setRotationY(mCurrentRotationY); 3295 } 3296 } 3297 3298 /** 3299 * Return the current {@link CellLayout}, correctly picking the destination 3300 * screen while a scroll is in progress. 3301 */ 3302 public CellLayout getCurrentDropLayout() { 3303 return (CellLayout) getChildAt(getNextPage()); 3304 } 3305 3306 /** 3307 * Return the current CellInfo describing our current drag; this method exists 3308 * so that Launcher can sync this object with the correct info when the activity is created/ 3309 * destroyed 3310 * 3311 */ 3312 public CellLayout.CellInfo getDragInfo() { 3313 return mDragInfo; 3314 } 3315 3316 /** 3317 * Calculate the nearest cell where the given object would be dropped. 3318 * 3319 * pixelX and pixelY should be in the coordinate system of layout 3320 */ 3321 private int[] findNearestArea(int pixelX, int pixelY, 3322 int spanX, int spanY, CellLayout layout, int[] recycle) { 3323 return layout.findNearestArea( 3324 pixelX, pixelY, spanX, spanY, recycle); 3325 } 3326 3327 void setup(DragController dragController) { 3328 mSpringLoadedDragController = new SpringLoadedDragController(mLauncher); 3329 mDragController = dragController; 3330 3331 // hardware layers on children are enabled on startup, but should be disabled until 3332 // needed 3333 updateChildrenLayersEnabled(); 3334 setWallpaperDimension(); 3335 } 3336 3337 /** 3338 * Called at the end of a drag which originated on the workspace. 3339 */ 3340 public void onDropCompleted(View target, DragObject d, boolean isFlingToDelete, 3341 boolean success) { 3342 if (success) { 3343 if (target != this) { 3344 if (mDragInfo != null) { 3345 getParentCellLayoutForView(mDragInfo.cell).removeView(mDragInfo.cell); 3346 if (mDragInfo.cell instanceof DropTarget) { 3347 mDragController.removeDropTarget((DropTarget) mDragInfo.cell); 3348 } 3349 } 3350 } 3351 } else if (mDragInfo != null) { 3352 CellLayout cellLayout; 3353 if (mLauncher.isHotseatLayout(target)) { 3354 cellLayout = mLauncher.getHotseat().getLayout(); 3355 } else { 3356 cellLayout = (CellLayout) getChildAt(mDragInfo.screen); 3357 } 3358 cellLayout.onDropChild(mDragInfo.cell); 3359 } 3360 if (d.cancelled && mDragInfo.cell != null) { 3361 mDragInfo.cell.setVisibility(VISIBLE); 3362 } 3363 mDragOutline = null; 3364 mDragInfo = null; 3365 3366 // Hide the scrolling indicator after you pick up an item 3367 hideScrollingIndicator(false); 3368 } 3369 3370 void updateItemLocationsInDatabase(CellLayout cl) { 3371 int count = cl.getShortcutsAndWidgets().getChildCount(); 3372 3373 int screen = indexOfChild(cl); 3374 int container = Favorites.CONTAINER_DESKTOP; 3375 3376 if (mLauncher.isHotseatLayout(cl)) { 3377 screen = -1; 3378 container = Favorites.CONTAINER_HOTSEAT; 3379 } 3380 3381 for (int i = 0; i < count; i++) { 3382 View v = cl.getShortcutsAndWidgets().getChildAt(i); 3383 ItemInfo info = (ItemInfo) v.getTag(); 3384 // Null check required as the AllApps button doesn't have an item info 3385 if (info != null) { 3386 LauncherModel.modifyItemInDatabase(mLauncher, info, container, screen, info.cellX, 3387 info.cellY, info.spanX, info.spanY); 3388 } 3389 } 3390 } 3391 3392 @Override 3393 public boolean supportsFlingToDelete() { 3394 return true; 3395 } 3396 3397 @Override 3398 public void onFlingToDelete(DragObject d, int x, int y, PointF vec) { 3399 // Do nothing 3400 } 3401 3402 @Override 3403 public void onFlingToDeleteCompleted() { 3404 // Do nothing 3405 } 3406 3407 public boolean isDropEnabled() { 3408 return true; 3409 } 3410 3411 @Override 3412 protected void onRestoreInstanceState(Parcelable state) { 3413 super.onRestoreInstanceState(state); 3414 Launcher.setScreen(mCurrentPage); 3415 } 3416 3417 @Override 3418 protected void dispatchRestoreInstanceState(SparseArray<Parcelable> container) { 3419 // We don't dispatch restoreInstanceState to our children using this code path. 3420 // Some pages will be restored immediately as their items are bound immediately, and 3421 // others we will need to wait until after their items are bound. 3422 mSavedStates = container; 3423 } 3424 3425 public void restoreInstanceStateForChild(int child) { 3426 if (mSavedStates != null) { 3427 mRestoredPages.add(child); 3428 CellLayout cl = (CellLayout) getChildAt(child); 3429 cl.restoreInstanceState(mSavedStates); 3430 } 3431 } 3432 3433 public void restoreInstanceStateForRemainingPages() { 3434 int count = getChildCount(); 3435 for (int i = 0; i < count; i++) { 3436 if (!mRestoredPages.contains(i)) { 3437 restoreInstanceStateForChild(i); 3438 } 3439 } 3440 mRestoredPages.clear(); 3441 } 3442 3443 @Override 3444 public void scrollLeft() { 3445 if (!isSmall() && !mIsSwitchingState) { 3446 super.scrollLeft(); 3447 } 3448 Folder openFolder = getOpenFolder(); 3449 if (openFolder != null) { 3450 openFolder.completeDragExit(); 3451 } 3452 } 3453 3454 @Override 3455 public void scrollRight() { 3456 if (!isSmall() && !mIsSwitchingState) { 3457 super.scrollRight(); 3458 } 3459 Folder openFolder = getOpenFolder(); 3460 if (openFolder != null) { 3461 openFolder.completeDragExit(); 3462 } 3463 } 3464 3465 @Override 3466 public boolean onEnterScrollArea(int x, int y, int direction) { 3467 // Ignore the scroll area if we are dragging over the hot seat 3468 boolean isPortrait = !LauncherApplication.isScreenLandscape(getContext()); 3469 if (mLauncher.getHotseat() != null && isPortrait) { 3470 Rect r = new Rect(); 3471 mLauncher.getHotseat().getHitRect(r); 3472 if (r.contains(x, y)) { 3473 return false; 3474 } 3475 } 3476 3477 boolean result = false; 3478 if (!isSmall() && !mIsSwitchingState) { 3479 mInScrollArea = true; 3480 3481 final int page = getNextPage() + 3482 (direction == DragController.SCROLL_LEFT ? -1 : 1); 3483 3484 // We always want to exit the current layout to ensure parity of enter / exit 3485 setCurrentDropLayout(null); 3486 3487 if (0 <= page && page < getChildCount()) { 3488 CellLayout layout = (CellLayout) getChildAt(page); 3489 setCurrentDragOverlappingLayout(layout); 3490 3491 // Workspace is responsible for drawing the edge glow on adjacent pages, 3492 // so we need to redraw the workspace when this may have changed. 3493 invalidate(); 3494 result = true; 3495 } 3496 } 3497 return result; 3498 } 3499 3500 @Override 3501 public boolean onExitScrollArea() { 3502 boolean result = false; 3503 if (mInScrollArea) { 3504 invalidate(); 3505 CellLayout layout = getCurrentDropLayout(); 3506 setCurrentDropLayout(layout); 3507 setCurrentDragOverlappingLayout(layout); 3508 3509 result = true; 3510 mInScrollArea = false; 3511 } 3512 return result; 3513 } 3514 3515 private void onResetScrollArea() { 3516 setCurrentDragOverlappingLayout(null); 3517 mInScrollArea = false; 3518 } 3519 3520 /** 3521 * Returns a specific CellLayout 3522 */ 3523 CellLayout getParentCellLayoutForView(View v) { 3524 ArrayList<CellLayout> layouts = getWorkspaceAndHotseatCellLayouts(); 3525 for (CellLayout layout : layouts) { 3526 if (layout.getShortcutsAndWidgets().indexOfChild(v) > -1) { 3527 return layout; 3528 } 3529 } 3530 return null; 3531 } 3532 3533 /** 3534 * Returns a list of all the CellLayouts in the workspace. 3535 */ 3536 ArrayList<CellLayout> getWorkspaceAndHotseatCellLayouts() { 3537 ArrayList<CellLayout> layouts = new ArrayList<CellLayout>(); 3538 int screenCount = getChildCount(); 3539 for (int screen = 0; screen < screenCount; screen++) { 3540 layouts.add(((CellLayout) getChildAt(screen))); 3541 } 3542 if (mLauncher.getHotseat() != null) { 3543 layouts.add(mLauncher.getHotseat().getLayout()); 3544 } 3545 return layouts; 3546 } 3547 3548 /** 3549 * We should only use this to search for specific children. Do not use this method to modify 3550 * ShortcutsAndWidgetsContainer directly. Includes ShortcutAndWidgetContainers from 3551 * the hotseat and workspace pages 3552 */ 3553 ArrayList<ShortcutAndWidgetContainer> getAllShortcutAndWidgetContainers() { 3554 ArrayList<ShortcutAndWidgetContainer> childrenLayouts = 3555 new ArrayList<ShortcutAndWidgetContainer>(); 3556 int screenCount = getChildCount(); 3557 for (int screen = 0; screen < screenCount; screen++) { 3558 childrenLayouts.add(((CellLayout) getChildAt(screen)).getShortcutsAndWidgets()); 3559 } 3560 if (mLauncher.getHotseat() != null) { 3561 childrenLayouts.add(mLauncher.getHotseat().getLayout().getShortcutsAndWidgets()); 3562 } 3563 return childrenLayouts; 3564 } 3565 3566 public Folder getFolderForTag(Object tag) { 3567 ArrayList<ShortcutAndWidgetContainer> childrenLayouts = 3568 getAllShortcutAndWidgetContainers(); 3569 for (ShortcutAndWidgetContainer layout: childrenLayouts) { 3570 int count = layout.getChildCount(); 3571 for (int i = 0; i < count; i++) { 3572 View child = layout.getChildAt(i); 3573 if (child instanceof Folder) { 3574 Folder f = (Folder) child; 3575 if (f.getInfo() == tag && f.getInfo().opened) { 3576 return f; 3577 } 3578 } 3579 } 3580 } 3581 return null; 3582 } 3583 3584 public View getViewForTag(Object tag) { 3585 ArrayList<ShortcutAndWidgetContainer> childrenLayouts = 3586 getAllShortcutAndWidgetContainers(); 3587 for (ShortcutAndWidgetContainer layout: childrenLayouts) { 3588 int count = layout.getChildCount(); 3589 for (int i = 0; i < count; i++) { 3590 View child = layout.getChildAt(i); 3591 if (child.getTag() == tag) { 3592 return child; 3593 } 3594 } 3595 } 3596 return null; 3597 } 3598 3599 void clearDropTargets() { 3600 ArrayList<ShortcutAndWidgetContainer> childrenLayouts = 3601 getAllShortcutAndWidgetContainers(); 3602 for (ShortcutAndWidgetContainer layout: childrenLayouts) { 3603 int childCount = layout.getChildCount(); 3604 for (int j = 0; j < childCount; j++) { 3605 View v = layout.getChildAt(j); 3606 if (v instanceof DropTarget) { 3607 mDragController.removeDropTarget((DropTarget) v); 3608 } 3609 } 3610 } 3611 } 3612 3613 void removeItems(final ArrayList<ApplicationInfo> apps) { 3614 final AppWidgetManager widgets = AppWidgetManager.getInstance(getContext()); 3615 3616 final HashSet<String> packageNames = new HashSet<String>(); 3617 final int appCount = apps.size(); 3618 for (int i = 0; i < appCount; i++) { 3619 packageNames.add(apps.get(i).componentName.getPackageName()); 3620 } 3621 3622 ArrayList<CellLayout> cellLayouts = getWorkspaceAndHotseatCellLayouts(); 3623 for (final CellLayout layoutParent: cellLayouts) { 3624 final ViewGroup layout = layoutParent.getShortcutsAndWidgets(); 3625 3626 // Avoid ANRs by treating each screen separately 3627 post(new Runnable() { 3628 public void run() { 3629 final ArrayList<View> childrenToRemove = new ArrayList<View>(); 3630 childrenToRemove.clear(); 3631 3632 int childCount = layout.getChildCount(); 3633 for (int j = 0; j < childCount; j++) { 3634 final View view = layout.getChildAt(j); 3635 Object tag = view.getTag(); 3636 3637 if (tag instanceof ShortcutInfo) { 3638 final ShortcutInfo info = (ShortcutInfo) tag; 3639 final Intent intent = info.intent; 3640 final ComponentName name = intent.getComponent(); 3641 3642 if (name != null) { 3643 if (packageNames.contains(name.getPackageName())) { 3644 LauncherModel.deleteItemFromDatabase(mLauncher, info); 3645 childrenToRemove.add(view); 3646 } 3647 } 3648 } else if (tag instanceof FolderInfo) { 3649 final FolderInfo info = (FolderInfo) tag; 3650 final ArrayList<ShortcutInfo> contents = info.contents; 3651 final int contentsCount = contents.size(); 3652 final ArrayList<ShortcutInfo> appsToRemoveFromFolder = 3653 new ArrayList<ShortcutInfo>(); 3654 3655 for (int k = 0; k < contentsCount; k++) { 3656 final ShortcutInfo appInfo = contents.get(k); 3657 final Intent intent = appInfo.intent; 3658 final ComponentName name = intent.getComponent(); 3659 3660 if (name != null) { 3661 if (packageNames.contains(name.getPackageName())) { 3662 appsToRemoveFromFolder.add(appInfo); 3663 } 3664 } 3665 } 3666 for (ShortcutInfo item: appsToRemoveFromFolder) { 3667 info.remove(item); 3668 LauncherModel.deleteItemFromDatabase(mLauncher, item); 3669 } 3670 } else if (tag instanceof LauncherAppWidgetInfo) { 3671 final LauncherAppWidgetInfo info = (LauncherAppWidgetInfo) tag; 3672 final ComponentName provider = info.providerName; 3673 if (provider != null) { 3674 if (packageNames.contains(provider.getPackageName())) { 3675 LauncherModel.deleteItemFromDatabase(mLauncher, info); 3676 childrenToRemove.add(view); 3677 } 3678 } 3679 } 3680 } 3681 3682 childCount = childrenToRemove.size(); 3683 for (int j = 0; j < childCount; j++) { 3684 View child = childrenToRemove.get(j); 3685 // Note: We can not remove the view directly from CellLayoutChildren as this 3686 // does not re-mark the spaces as unoccupied. 3687 layoutParent.removeViewInLayout(child); 3688 if (child instanceof DropTarget) { 3689 mDragController.removeDropTarget((DropTarget)child); 3690 } 3691 } 3692 3693 if (childCount > 0) { 3694 layout.requestLayout(); 3695 layout.invalidate(); 3696 } 3697 } 3698 }); 3699 } 3700 3701 // It is no longer the case the BubbleTextViews correspond 1:1 with the workspace items in 3702 // the database (and LauncherModel) since shortcuts are not added and animated in until 3703 // the user returns to launcher. As a result, we really should be cleaning up the Db 3704 // regardless of whether the item was added or not (unlike the logic above). This is only 3705 // relevant for direct workspace items. 3706 post(new Runnable() { 3707 @Override 3708 public void run() { 3709 String spKey = LauncherApplication.getSharedPreferencesKey(); 3710 SharedPreferences sp = getContext().getSharedPreferences(spKey, 3711 Context.MODE_PRIVATE); 3712 Set<String> newApps = sp.getStringSet(InstallShortcutReceiver.NEW_APPS_LIST_KEY, 3713 null); 3714 3715 for (String packageName: packageNames) { 3716 // Remove all items that have the same package, but were not removed above 3717 ArrayList<ShortcutInfo> infos = 3718 mLauncher.getModel().getShortcutInfosForPackage(packageName); 3719 for (ShortcutInfo info : infos) { 3720 LauncherModel.deleteItemFromDatabase(mLauncher, info); 3721 } 3722 // Remove all queued items that match the same package 3723 if (newApps != null) { 3724 synchronized (newApps) { 3725 Iterator<String> iter = newApps.iterator(); 3726 while (iter.hasNext()) { 3727 try { 3728 Intent intent = Intent.parseUri(iter.next(), 0); 3729 String pn = ItemInfo.getPackageName(intent); 3730 if (packageNames.contains(pn)) { 3731 iter.remove(); 3732 } 3733 } catch (URISyntaxException e) {} 3734 } 3735 } 3736 } 3737 } 3738 } 3739 }); 3740 } 3741 3742 void updateShortcuts(ArrayList<ApplicationInfo> apps) { 3743 ArrayList<ShortcutAndWidgetContainer> childrenLayouts = getAllShortcutAndWidgetContainers(); 3744 for (ShortcutAndWidgetContainer layout: childrenLayouts) { 3745 int childCount = layout.getChildCount(); 3746 for (int j = 0; j < childCount; j++) { 3747 final View view = layout.getChildAt(j); 3748 Object tag = view.getTag(); 3749 if (tag instanceof ShortcutInfo) { 3750 ShortcutInfo info = (ShortcutInfo) tag; 3751 // We need to check for ACTION_MAIN otherwise getComponent() might 3752 // return null for some shortcuts (for instance, for shortcuts to 3753 // web pages.) 3754 final Intent intent = info.intent; 3755 final ComponentName name = intent.getComponent(); 3756 if (info.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPLICATION && 3757 Intent.ACTION_MAIN.equals(intent.getAction()) && name != null) { 3758 final int appCount = apps.size(); 3759 for (int k = 0; k < appCount; k++) { 3760 ApplicationInfo app = apps.get(k); 3761 if (app.componentName.equals(name)) { 3762 BubbleTextView shortcut = (BubbleTextView) view; 3763 info.updateIcon(mIconCache); 3764 info.title = app.title.toString(); 3765 shortcut.applyFromShortcutInfo(info, mIconCache); 3766 } 3767 } 3768 } 3769 } 3770 } 3771 } 3772 } 3773 3774 void moveToDefaultScreen(boolean animate) { 3775 if (!isSmall()) { 3776 if (animate) { 3777 snapToPage(mDefaultPage); 3778 } else { 3779 setCurrentPage(mDefaultPage); 3780 } 3781 } 3782 getChildAt(mDefaultPage).requestFocus(); 3783 } 3784 3785 @Override 3786 public void syncPages() { 3787 } 3788 3789 @Override 3790 public void syncPageItems(int page, boolean immediate) { 3791 } 3792 3793 @Override 3794 protected String getCurrentPageDescription() { 3795 int page = (mNextPage != INVALID_PAGE) ? mNextPage : mCurrentPage; 3796 return String.format(getContext().getString(R.string.workspace_scroll_format), 3797 page + 1, getChildCount()); 3798 } 3799 3800 public void getLocationInDragLayer(int[] loc) { 3801 mLauncher.getDragLayer().getLocationInDragLayer(this, loc); 3802 } 3803 3804 void setFadeForOverScroll(float fade) { 3805 if (!isScrollingIndicatorEnabled()) return; 3806 3807 mOverscrollFade = fade; 3808 float reducedFade = 0.5f + 0.5f * (1 - fade); 3809 final ViewGroup parent = (ViewGroup) getParent(); 3810 final ImageView qsbDivider = (ImageView) (parent.findViewById(R.id.qsb_divider)); 3811 final ImageView dockDivider = (ImageView) (parent.findViewById(R.id.dock_divider)); 3812 final View scrollIndicator = getScrollingIndicator(); 3813 3814 cancelScrollingIndicatorAnimations(); 3815 if (qsbDivider != null) qsbDivider.setAlpha(reducedFade); 3816 if (dockDivider != null) dockDivider.setAlpha(reducedFade); 3817 scrollIndicator.setAlpha(1 - fade); 3818 } 3819 } 3820