Workspace.java revision e52a750e4f63ca5fce642256844cc603d40e6f26
1/* 2 * Copyright (C) 2008 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17package com.android.launcher2; 18 19import android.animation.Animator; 20import android.animation.AnimatorSet; 21import android.animation.ObjectAnimator; 22import android.animation.TimeInterpolator; 23import android.animation.ValueAnimator; 24import android.animation.ValueAnimator.AnimatorUpdateListener; 25import android.app.WallpaperManager; 26import android.appwidget.AppWidgetHostView; 27import android.appwidget.AppWidgetProviderInfo; 28import android.content.ComponentName; 29import android.content.Context; 30import android.content.Intent; 31import android.content.SharedPreferences; 32import android.content.res.Resources; 33import android.content.res.TypedArray; 34import android.graphics.Bitmap; 35import android.graphics.Canvas; 36import android.graphics.Matrix; 37import android.graphics.Point; 38import android.graphics.PointF; 39import android.graphics.Rect; 40import android.graphics.Region.Op; 41import android.graphics.drawable.Drawable; 42import android.os.IBinder; 43import android.os.Parcelable; 44import android.util.AttributeSet; 45import android.util.Log; 46import android.view.Display; 47import android.view.MotionEvent; 48import android.view.View; 49import android.view.ViewGroup; 50import android.view.animation.DecelerateInterpolator; 51import android.widget.ImageView; 52import android.widget.TextView; 53 54import com.android.launcher.R; 55import com.android.launcher2.FolderIcon.FolderRingAnimator; 56import com.android.launcher2.LauncherSettings.Favorites; 57 58import java.net.URISyntaxException; 59import java.util.ArrayList; 60import java.util.HashSet; 61import java.util.Iterator; 62import java.util.Set; 63 64/** 65 * The workspace is a wide area with a wallpaper and a finite number of pages. 66 * Each page contains a number of icons, folders or widgets the user can 67 * interact with. A workspace is meant to be used with a fixed width only. 68 */ 69public class Workspace extends SmoothPagedView 70 implements DropTarget, DragSource, DragScroller, View.OnTouchListener, 71 DragController.DragListener, LauncherTransitionable, ViewGroup.OnHierarchyChangeListener { 72 private static final String TAG = "Launcher.Workspace"; 73 74 // Y rotation to apply to the workspace screens 75 private static final float WORKSPACE_OVERSCROLL_ROTATION = 24f; 76 77 private static final int CHILDREN_OUTLINE_FADE_OUT_DELAY = 0; 78 private static final int CHILDREN_OUTLINE_FADE_OUT_DURATION = 375; 79 private static final int CHILDREN_OUTLINE_FADE_IN_DURATION = 100; 80 81 private static final int BACKGROUND_FADE_OUT_DURATION = 350; 82 private static final int ADJACENT_SCREEN_DROP_DURATION = 300; 83 private static final int FLING_THRESHOLD_VELOCITY = 500; 84 85 // These animators are used to fade the children's outlines 86 private ObjectAnimator mChildrenOutlineFadeInAnimation; 87 private ObjectAnimator mChildrenOutlineFadeOutAnimation; 88 private float mChildrenOutlineAlpha = 0; 89 90 // These properties refer to the background protection gradient used for AllApps and Customize 91 private ValueAnimator mBackgroundFadeInAnimation; 92 private ValueAnimator mBackgroundFadeOutAnimation; 93 private Drawable mBackground; 94 boolean mDrawBackground = true; 95 private float mBackgroundAlpha = 0; 96 private float mOverScrollMaxBackgroundAlpha = 0.0f; 97 98 private float mWallpaperScrollRatio = 1.0f; 99 100 private final WallpaperManager mWallpaperManager; 101 private IBinder mWindowToken; 102 private static final float WALLPAPER_SCREENS_SPAN = 2f; 103 104 private int mDefaultPage; 105 106 /** 107 * CellInfo for the cell that is currently being dragged 108 */ 109 private CellLayout.CellInfo mDragInfo; 110 111 /** 112 * Target drop area calculated during last acceptDrop call. 113 */ 114 private int[] mTargetCell = new int[2]; 115 private int mDragOverX = -1; 116 private int mDragOverY = -1; 117 118 static Rect mLandscapeCellLayoutMetrics = null; 119 static Rect mPortraitCellLayoutMetrics = null; 120 121 /** 122 * The CellLayout that is currently being dragged over 123 */ 124 private CellLayout mDragTargetLayout = null; 125 /** 126 * The CellLayout that we will show as glowing 127 */ 128 private CellLayout mDragOverlappingLayout = null; 129 130 /** 131 * The CellLayout which will be dropped to 132 */ 133 private CellLayout mDropToLayout = null; 134 135 private Launcher mLauncher; 136 private IconCache mIconCache; 137 private DragController mDragController; 138 139 // These are temporary variables to prevent having to allocate a new object just to 140 // return an (x, y) value from helper functions. Do NOT use them to maintain other state. 141 private int[] mTempCell = new int[2]; 142 private int[] mTempEstimate = new int[2]; 143 private float[] mDragViewVisualCenter = new float[2]; 144 private float[] mTempDragCoordinates = new float[2]; 145 private float[] mTempCellLayoutCenterCoordinates = new float[2]; 146 private float[] mTempDragBottomRightCoordinates = new float[2]; 147 private Matrix mTempInverseMatrix = new Matrix(); 148 149 private SpringLoadedDragController mSpringLoadedDragController; 150 private float mSpringLoadedShrinkFactor; 151 152 private static final int DEFAULT_CELL_COUNT_X = 4; 153 private static final int DEFAULT_CELL_COUNT_Y = 4; 154 155 // State variable that indicates whether the pages are small (ie when you're 156 // in all apps or customize mode) 157 158 enum State { NORMAL, SPRING_LOADED, SMALL }; 159 private State mState = State.NORMAL; 160 private boolean mIsSwitchingState = false; 161 162 boolean mAnimatingViewIntoPlace = false; 163 boolean mIsDragOccuring = false; 164 boolean mChildrenLayersEnabled = true; 165 166 /** Is the user is dragging an item near the edge of a page? */ 167 private boolean mInScrollArea = false; 168 169 private final HolographicOutlineHelper mOutlineHelper = new HolographicOutlineHelper(); 170 private Bitmap mDragOutline = null; 171 private final Rect mTempRect = new Rect(); 172 private final int[] mTempXY = new int[2]; 173 private int[] mTempVisiblePagesRange = new int[2]; 174 private float mOverscrollFade = 0; 175 private boolean mOverscrollTransformsSet; 176 public static final int DRAG_BITMAP_PADDING = 2; 177 private boolean mWorkspaceFadeInAdjacentScreens; 178 179 enum WallpaperVerticalOffset { TOP, MIDDLE, BOTTOM }; 180 int mWallpaperWidth; 181 int mWallpaperHeight; 182 WallpaperOffsetInterpolator mWallpaperOffset; 183 boolean mUpdateWallpaperOffsetImmediately = false; 184 private Runnable mDelayedResizeRunnable; 185 private Runnable mDelayedSnapToPageRunnable; 186 private Point mDisplaySize = new Point(); 187 private boolean mIsStaticWallpaper; 188 private int mWallpaperTravelWidth; 189 private int mSpringLoadedPageSpacing; 190 private int mCameraDistance; 191 192 // Variables relating to the creation of user folders by hovering shortcuts over shortcuts 193 private static final int FOLDER_CREATION_TIMEOUT = 0; 194 private static final int REORDER_TIMEOUT = 250; 195 private final Alarm mFolderCreationAlarm = new Alarm(); 196 private final Alarm mReorderAlarm = new Alarm(); 197 private FolderRingAnimator mDragFolderRingAnimator = null; 198 private FolderIcon mDragOverFolderIcon = null; 199 private boolean mCreateUserFolderOnDrop = false; 200 private boolean mAddToExistingFolderOnDrop = false; 201 private DropTarget.DragEnforcer mDragEnforcer; 202 private float mMaxDistanceForFolderCreation; 203 204 // Variables relating to touch disambiguation (scrolling workspace vs. scrolling a widget) 205 private float mXDown; 206 private float mYDown; 207 final static float START_DAMPING_TOUCH_SLOP_ANGLE = (float) Math.PI / 6; 208 final static float MAX_SWIPE_ANGLE = (float) Math.PI / 3; 209 final static float TOUCH_SLOP_DAMPING_FACTOR = 4; 210 211 // Relating to the animation of items being dropped externally 212 public static final int ANIMATE_INTO_POSITION_AND_DISAPPEAR = 0; 213 public static final int ANIMATE_INTO_POSITION_AND_REMAIN = 1; 214 public static final int ANIMATE_INTO_POSITION_AND_RESIZE = 2; 215 public static final int COMPLETE_TWO_STAGE_WIDGET_DROP_ANIMATION = 3; 216 public static final int CANCEL_TWO_STAGE_WIDGET_DROP_ANIMATION = 4; 217 218 // Related to dragging, folder creation and reordering 219 private static final int DRAG_MODE_NONE = 0; 220 private static final int DRAG_MODE_CREATE_FOLDER = 1; 221 private static final int DRAG_MODE_ADD_TO_FOLDER = 2; 222 private static final int DRAG_MODE_REORDER = 3; 223 private int mDragMode = DRAG_MODE_NONE; 224 private int mLastReorderX = -1; 225 private int mLastReorderY = -1; 226 227 // These variables are used for storing the initial and final values during workspace animations 228 private int mSavedScrollX; 229 private float mSavedRotationY; 230 private float mSavedTranslationX; 231 private float mCurrentScaleX; 232 private float mCurrentScaleY; 233 private float mCurrentRotationY; 234 private float mCurrentTranslationX; 235 private float mCurrentTranslationY; 236 private float[] mOldTranslationXs; 237 private float[] mOldTranslationYs; 238 private float[] mOldScaleXs; 239 private float[] mOldScaleYs; 240 private float[] mOldBackgroundAlphas; 241 private float[] mOldAlphas; 242 private float[] mNewTranslationXs; 243 private float[] mNewTranslationYs; 244 private float[] mNewScaleXs; 245 private float[] mNewScaleYs; 246 private float[] mNewBackgroundAlphas; 247 private float[] mNewAlphas; 248 private float[] mNewRotationYs; 249 private float mTransitionProgress; 250 251 /** 252 * Used to inflate the Workspace from XML. 253 * 254 * @param context The application's context. 255 * @param attrs The attributes set containing the Workspace's customization values. 256 */ 257 public Workspace(Context context, AttributeSet attrs) { 258 this(context, attrs, 0); 259 } 260 261 /** 262 * Used to inflate the Workspace from XML. 263 * 264 * @param context The application's context. 265 * @param attrs The attributes set containing the Workspace's customization values. 266 * @param defStyle Unused. 267 */ 268 public Workspace(Context context, AttributeSet attrs, int defStyle) { 269 super(context, attrs, defStyle); 270 mContentIsRefreshable = false; 271 272 mDragEnforcer = new DropTarget.DragEnforcer(context); 273 // With workspace, data is available straight from the get-go 274 setDataIsReady(); 275 276 mLauncher = (Launcher) context; 277 final Resources res = getResources(); 278 mWorkspaceFadeInAdjacentScreens = res.getBoolean(R.bool.config_workspaceFadeAdjacentScreens); 279 mFadeInAdjacentScreens = false; 280 mWallpaperManager = WallpaperManager.getInstance(context); 281 282 int cellCountX = DEFAULT_CELL_COUNT_X; 283 int cellCountY = DEFAULT_CELL_COUNT_Y; 284 285 TypedArray a = context.obtainStyledAttributes(attrs, 286 R.styleable.Workspace, defStyle, 0); 287 288 if (LauncherApplication.isScreenLarge()) { 289 // Determine number of rows/columns dynamically 290 // TODO: This code currently fails on tablets with an aspect ratio < 1.3. 291 // Around that ratio we should make cells the same size in portrait and 292 // landscape 293 TypedArray actionBarSizeTypedArray = 294 context.obtainStyledAttributes(new int[] { android.R.attr.actionBarSize }); 295 final float actionBarHeight = actionBarSizeTypedArray.getDimension(0, 0f); 296 297 Point minDims = new Point(); 298 Point maxDims = new Point(); 299 mLauncher.getWindowManager().getDefaultDisplay().getCurrentSizeRange(minDims, maxDims); 300 301 cellCountX = 1; 302 while (CellLayout.widthInPortrait(res, cellCountX + 1) <= minDims.x) { 303 cellCountX++; 304 } 305 306 cellCountY = 1; 307 while (actionBarHeight + CellLayout.heightInLandscape(res, cellCountY + 1) 308 <= minDims.y) { 309 cellCountY++; 310 } 311 } 312 313 mSpringLoadedShrinkFactor = 314 res.getInteger(R.integer.config_workspaceSpringLoadShrinkPercentage) / 100.0f; 315 mSpringLoadedPageSpacing = 316 res.getDimensionPixelSize(R.dimen.workspace_spring_loaded_page_spacing); 317 mCameraDistance = res.getInteger(R.integer.config_cameraDistance); 318 319 // if the value is manually specified, use that instead 320 cellCountX = a.getInt(R.styleable.Workspace_cellCountX, cellCountX); 321 cellCountY = a.getInt(R.styleable.Workspace_cellCountY, cellCountY); 322 mDefaultPage = a.getInt(R.styleable.Workspace_defaultScreen, 1); 323 a.recycle(); 324 325 setOnHierarchyChangeListener(this); 326 327 LauncherModel.updateWorkspaceLayoutCells(cellCountX, cellCountY); 328 setHapticFeedbackEnabled(false); 329 330 initWorkspace(); 331 332 // Disable multitouch across the workspace/all apps/customize tray 333 setMotionEventSplittingEnabled(true); 334 335 // Unless otherwise specified this view is important for accessibility. 336 if (getImportantForAccessibility() == View.IMPORTANT_FOR_ACCESSIBILITY_AUTO) { 337 setImportantForAccessibility(View.IMPORTANT_FOR_ACCESSIBILITY_YES); 338 } 339 } 340 341 // estimate the size of a widget with spans hSpan, vSpan. return MAX_VALUE for each 342 // dimension if unsuccessful 343 public int[] estimateItemSize(int hSpan, int vSpan, 344 ItemInfo itemInfo, boolean springLoaded) { 345 int[] size = new int[2]; 346 if (getChildCount() > 0) { 347 CellLayout cl = (CellLayout) mLauncher.getWorkspace().getChildAt(0); 348 Rect r = estimateItemPosition(cl, itemInfo, 0, 0, hSpan, vSpan); 349 size[0] = r.width(); 350 size[1] = r.height(); 351 if (springLoaded) { 352 size[0] *= mSpringLoadedShrinkFactor; 353 size[1] *= mSpringLoadedShrinkFactor; 354 } 355 return size; 356 } else { 357 size[0] = Integer.MAX_VALUE; 358 size[1] = Integer.MAX_VALUE; 359 return size; 360 } 361 } 362 public Rect estimateItemPosition(CellLayout cl, ItemInfo pendingInfo, 363 int hCell, int vCell, int hSpan, int vSpan) { 364 Rect r = new Rect(); 365 cl.cellToRect(hCell, vCell, hSpan, vSpan, r); 366 return r; 367 } 368 369 public void onDragStart(DragSource source, Object info, int dragAction) { 370 mIsDragOccuring = true; 371 updateChildrenLayersEnabled(false); 372 mLauncher.lockScreenOrientation(); 373 setChildrenBackgroundAlphaMultipliers(1f); 374 // Prevent any Un/InstallShortcutReceivers from updating the db while we are dragging 375 InstallShortcutReceiver.enableInstallQueue(); 376 UninstallShortcutReceiver.enableUninstallQueue(); 377 } 378 379 public void onDragEnd() { 380 mIsDragOccuring = false; 381 updateChildrenLayersEnabled(false); 382 mLauncher.unlockScreenOrientation(false); 383 384 // Re-enable any Un/InstallShortcutReceiver and now process any queued items 385 InstallShortcutReceiver.disableAndFlushInstallQueue(getContext()); 386 UninstallShortcutReceiver.disableAndFlushUninstallQueue(getContext()); 387 } 388 389 /** 390 * Initializes various states for this workspace. 391 */ 392 protected void initWorkspace() { 393 Context context = getContext(); 394 mCurrentPage = mDefaultPage; 395 Launcher.setScreen(mCurrentPage); 396 LauncherApplication app = (LauncherApplication)context.getApplicationContext(); 397 mIconCache = app.getIconCache(); 398 setWillNotDraw(false); 399 setChildrenDrawnWithCacheEnabled(true); 400 401 final Resources res = getResources(); 402 try { 403 mBackground = res.getDrawable(R.drawable.apps_customize_bg); 404 } catch (Resources.NotFoundException e) { 405 // In this case, we will skip drawing background protection 406 } 407 408 mWallpaperOffset = new WallpaperOffsetInterpolator(); 409 Display display = mLauncher.getWindowManager().getDefaultDisplay(); 410 display.getSize(mDisplaySize); 411 mWallpaperTravelWidth = (int) (mDisplaySize.x * 412 wallpaperTravelToScreenWidthRatio(mDisplaySize.x, mDisplaySize.y)); 413 414 mMaxDistanceForFolderCreation = (0.55f * res.getDimensionPixelSize(R.dimen.app_icon_size)); 415 mFlingThresholdVelocity = (int) (FLING_THRESHOLD_VELOCITY * mDensity); 416 } 417 418 @Override 419 protected int getScrollMode() { 420 return SmoothPagedView.X_LARGE_MODE; 421 } 422 423 @Override 424 public void onChildViewAdded(View parent, View child) { 425 if (!(child instanceof CellLayout)) { 426 throw new IllegalArgumentException("A Workspace can only have CellLayout children."); 427 } 428 CellLayout cl = ((CellLayout) child); 429 cl.setOnInterceptTouchListener(this); 430 cl.setClickable(true); 431 cl.setContentDescription(getContext().getString( 432 R.string.workspace_description_format, getChildCount())); 433 } 434 435 @Override 436 public void onChildViewRemoved(View parent, View child) { 437 } 438 439 protected boolean shouldDrawChild(View child) { 440 final CellLayout cl = (CellLayout) child; 441 return super.shouldDrawChild(child) && 442 (cl.getShortcutsAndWidgets().getAlpha() > 0 || 443 cl.getBackgroundAlpha() > 0); 444 } 445 446 /** 447 * @return The open folder on the current screen, or null if there is none 448 */ 449 Folder getOpenFolder() { 450 DragLayer dragLayer = mLauncher.getDragLayer(); 451 int count = dragLayer.getChildCount(); 452 for (int i = 0; i < count; i++) { 453 View child = dragLayer.getChildAt(i); 454 if (child instanceof Folder) { 455 Folder folder = (Folder) child; 456 if (folder.getInfo().opened) 457 return folder; 458 } 459 } 460 return null; 461 } 462 463 boolean isTouchActive() { 464 return mTouchState != TOUCH_STATE_REST; 465 } 466 467 /** 468 * Adds the specified child in the specified screen. The position and dimension of 469 * the child are defined by x, y, spanX and spanY. 470 * 471 * @param child The child to add in one of the workspace's screens. 472 * @param screen The screen in which to add the child. 473 * @param x The X position of the child in the screen's grid. 474 * @param y The Y position of the child in the screen's grid. 475 * @param spanX The number of cells spanned horizontally by the child. 476 * @param spanY The number of cells spanned vertically by the child. 477 */ 478 void addInScreen(View child, long container, int screen, int x, int y, int spanX, int spanY) { 479 addInScreen(child, container, screen, x, y, spanX, spanY, false); 480 } 481 482 /** 483 * Adds the specified child in the specified screen. The position and dimension of 484 * the child are defined by x, y, spanX and spanY. 485 * 486 * @param child The child to add in one of the workspace's screens. 487 * @param screen The screen in which to add the child. 488 * @param x The X position of the child in the screen's grid. 489 * @param y The Y position of the child in the screen's grid. 490 * @param spanX The number of cells spanned horizontally by the child. 491 * @param spanY The number of cells spanned vertically by the child. 492 * @param insert When true, the child is inserted at the beginning of the children list. 493 */ 494 void addInScreen(View child, long container, int screen, int x, int y, int spanX, int spanY, 495 boolean insert) { 496 if (container == LauncherSettings.Favorites.CONTAINER_DESKTOP) { 497 if (screen < 0 || screen >= getChildCount()) { 498 Log.e(TAG, "The screen must be >= 0 and < " + getChildCount() 499 + " (was " + screen + "); skipping child"); 500 return; 501 } 502 } 503 504 final CellLayout layout; 505 if (container == LauncherSettings.Favorites.CONTAINER_HOTSEAT) { 506 layout = mLauncher.getHotseat().getLayout(); 507 child.setOnKeyListener(null); 508 509 // Hide folder title in the hotseat 510 if (child instanceof FolderIcon) { 511 ((FolderIcon) child).setTextVisible(false); 512 } 513 514 if (screen < 0) { 515 screen = mLauncher.getHotseat().getOrderInHotseat(x, y); 516 } else { 517 // Note: We do this to ensure that the hotseat is always laid out in the orientation 518 // of the hotseat in order regardless of which orientation they were added 519 x = mLauncher.getHotseat().getCellXFromOrder(screen); 520 y = mLauncher.getHotseat().getCellYFromOrder(screen); 521 } 522 } else { 523 // Show folder title if not in the hotseat 524 if (child instanceof FolderIcon) { 525 ((FolderIcon) child).setTextVisible(true); 526 } 527 528 layout = (CellLayout) getChildAt(screen); 529 child.setOnKeyListener(new IconKeyEventListener()); 530 } 531 532 LayoutParams genericLp = child.getLayoutParams(); 533 CellLayout.LayoutParams lp; 534 if (genericLp == null || !(genericLp instanceof CellLayout.LayoutParams)) { 535 lp = new CellLayout.LayoutParams(x, y, spanX, spanY); 536 } else { 537 lp = (CellLayout.LayoutParams) genericLp; 538 lp.cellX = x; 539 lp.cellY = y; 540 lp.cellHSpan = spanX; 541 lp.cellVSpan = spanY; 542 } 543 544 if (spanX < 0 && spanY < 0) { 545 lp.isLockedToGrid = false; 546 } 547 548 // Get the canonical child id to uniquely represent this view in this screen 549 int childId = LauncherModel.getCellLayoutChildId(container, screen, x, y, spanX, spanY); 550 boolean markCellsAsOccupied = !(child instanceof Folder); 551 if (!layout.addViewToCellLayout(child, insert ? 0 : -1, childId, lp, markCellsAsOccupied)) { 552 // TODO: This branch occurs when the workspace is adding views 553 // outside of the defined grid 554 // maybe we should be deleting these items from the LauncherModel? 555 Log.w(TAG, "Failed to add to item at (" + lp.cellX + "," + lp.cellY + ") to CellLayout"); 556 } 557 558 if (!(child instanceof Folder)) { 559 child.setHapticFeedbackEnabled(false); 560 child.setOnLongClickListener(mLongClickListener); 561 } 562 if (child instanceof DropTarget) { 563 mDragController.addDropTarget((DropTarget) child); 564 } 565 } 566 567 /** 568 * Check if the point (x, y) hits a given page. 569 */ 570 private boolean hitsPage(int index, float x, float y) { 571 final View page = getChildAt(index); 572 if (page != null) { 573 float[] localXY = { x, y }; 574 mapPointFromSelfToChild(page, localXY); 575 return (localXY[0] >= 0 && localXY[0] < page.getWidth() 576 && localXY[1] >= 0 && localXY[1] < page.getHeight()); 577 } 578 return false; 579 } 580 581 @Override 582 protected boolean hitsPreviousPage(float x, float y) { 583 // mNextPage is set to INVALID_PAGE whenever we are stationary. 584 // Calculating "next page" this way ensures that you scroll to whatever page you tap on 585 final int current = (mNextPage == INVALID_PAGE) ? mCurrentPage : mNextPage; 586 587 // Only allow tap to next page on large devices, where there's significant margin outside 588 // the active workspace 589 return LauncherApplication.isScreenLarge() && hitsPage(current - 1, x, y); 590 } 591 592 @Override 593 protected boolean hitsNextPage(float x, float y) { 594 // mNextPage is set to INVALID_PAGE whenever we are stationary. 595 // Calculating "next page" this way ensures that you scroll to whatever page you tap on 596 final int current = (mNextPage == INVALID_PAGE) ? mCurrentPage : mNextPage; 597 598 // Only allow tap to next page on large devices, where there's significant margin outside 599 // the active workspace 600 return LauncherApplication.isScreenLarge() && hitsPage(current + 1, x, y); 601 } 602 603 /** 604 * Called directly from a CellLayout (not by the framework), after we've been added as a 605 * listener via setOnInterceptTouchEventListener(). This allows us to tell the CellLayout 606 * that it should intercept touch events, which is not something that is normally supported. 607 */ 608 @Override 609 public boolean onTouch(View v, MotionEvent event) { 610 return (isSmall() || !isFinishedSwitchingState()); 611 } 612 613 public boolean isSwitchingState() { 614 return mIsSwitchingState; 615 } 616 617 /** This differs from isSwitchingState in that we take into account how far the transition 618 * has completed. */ 619 public boolean isFinishedSwitchingState() { 620 return !mIsSwitchingState || (mTransitionProgress > 0.5f); 621 } 622 623 protected void onWindowVisibilityChanged (int visibility) { 624 mLauncher.onWindowVisibilityChanged(visibility); 625 } 626 627 @Override 628 public boolean dispatchUnhandledMove(View focused, int direction) { 629 if (isSmall() || !isFinishedSwitchingState()) { 630 // when the home screens are shrunken, shouldn't allow side-scrolling 631 return false; 632 } 633 return super.dispatchUnhandledMove(focused, direction); 634 } 635 636 @Override 637 public boolean onInterceptTouchEvent(MotionEvent ev) { 638 switch (ev.getAction() & MotionEvent.ACTION_MASK) { 639 case MotionEvent.ACTION_DOWN: 640 mXDown = ev.getX(); 641 mYDown = ev.getY(); 642 break; 643 case MotionEvent.ACTION_POINTER_UP: 644 case MotionEvent.ACTION_UP: 645 if (mTouchState == TOUCH_STATE_REST) { 646 final CellLayout currentPage = (CellLayout) getChildAt(mCurrentPage); 647 if (!currentPage.lastDownOnOccupiedCell()) { 648 onWallpaperTap(ev); 649 } 650 } 651 } 652 return super.onInterceptTouchEvent(ev); 653 } 654 655 protected void reinflateWidgetsIfNecessary() { 656 final int clCount = getChildCount(); 657 for (int i = 0; i < clCount; i++) { 658 CellLayout cl = (CellLayout) getChildAt(i); 659 ShortcutAndWidgetContainer swc = cl.getShortcutsAndWidgets(); 660 final int itemCount = swc.getChildCount(); 661 for (int j = 0; j < itemCount; j++) { 662 View v = swc.getChildAt(j); 663 664 if (v.getTag() instanceof LauncherAppWidgetInfo) { 665 LauncherAppWidgetInfo info = (LauncherAppWidgetInfo) v.getTag(); 666 LauncherAppWidgetHostView lahv = (LauncherAppWidgetHostView) info.hostView; 667 if (lahv != null && lahv.orientationChangedSincedInflation()) { 668 mLauncher.removeAppWidget(info); 669 // Remove the current widget which is inflated with the wrong orientation 670 cl.removeView(lahv); 671 mLauncher.bindAppWidget(info); 672 } 673 } 674 } 675 } 676 } 677 678 @Override 679 protected void determineScrollingStart(MotionEvent ev) { 680 if (isSmall()) return; 681 if (!isFinishedSwitchingState()) return; 682 683 float deltaX = Math.abs(ev.getX() - mXDown); 684 float deltaY = Math.abs(ev.getY() - mYDown); 685 686 if (Float.compare(deltaX, 0f) == 0) return; 687 688 float slope = deltaY / deltaX; 689 float theta = (float) Math.atan(slope); 690 691 if (deltaX > mTouchSlop || deltaY > mTouchSlop) { 692 cancelCurrentPageLongPress(); 693 } 694 695 if (theta > MAX_SWIPE_ANGLE) { 696 // Above MAX_SWIPE_ANGLE, we don't want to ever start scrolling the workspace 697 return; 698 } else if (theta > START_DAMPING_TOUCH_SLOP_ANGLE) { 699 // Above START_DAMPING_TOUCH_SLOP_ANGLE and below MAX_SWIPE_ANGLE, we want to 700 // increase the touch slop to make it harder to begin scrolling the workspace. This 701 // results in vertically scrolling widgets to more easily. The higher the angle, the 702 // more we increase touch slop. 703 theta -= START_DAMPING_TOUCH_SLOP_ANGLE; 704 float extraRatio = (float) 705 Math.sqrt((theta / (MAX_SWIPE_ANGLE - START_DAMPING_TOUCH_SLOP_ANGLE))); 706 super.determineScrollingStart(ev, 1 + TOUCH_SLOP_DAMPING_FACTOR * extraRatio); 707 } else { 708 // Below START_DAMPING_TOUCH_SLOP_ANGLE, we don't do anything special 709 super.determineScrollingStart(ev); 710 } 711 } 712 713 protected void onPageBeginMoving() { 714 super.onPageBeginMoving(); 715 716 if (isHardwareAccelerated()) { 717 updateChildrenLayersEnabled(false); 718 } else { 719 if (mNextPage != INVALID_PAGE) { 720 // we're snapping to a particular screen 721 enableChildrenCache(mCurrentPage, mNextPage); 722 } else { 723 // this is when user is actively dragging a particular screen, they might 724 // swipe it either left or right (but we won't advance by more than one screen) 725 enableChildrenCache(mCurrentPage - 1, mCurrentPage + 1); 726 } 727 } 728 729 // Only show page outlines as we pan if we are on large screen 730 if (LauncherApplication.isScreenLarge()) { 731 showOutlines(); 732 mIsStaticWallpaper = mWallpaperManager.getWallpaperInfo() == null; 733 } 734 735 // If we are not fading in adjacent screens, we still need to restore the alpha in case the 736 // user scrolls while we are transitioning (should not affect dispatchDraw optimizations) 737 if (!mWorkspaceFadeInAdjacentScreens) { 738 for (int i = 0; i < getChildCount(); ++i) { 739 ((CellLayout) getPageAt(i)).setShortcutAndWidgetAlpha(1f); 740 } 741 } 742 743 // Show the scroll indicator as you pan the page 744 showScrollingIndicator(false); 745 } 746 747 protected void onPageEndMoving() { 748 super.onPageEndMoving(); 749 750 if (isHardwareAccelerated()) { 751 updateChildrenLayersEnabled(false); 752 } else { 753 clearChildrenCache(); 754 } 755 756 757 if (mDragController.isDragging()) { 758 if (isSmall()) { 759 // If we are in springloaded mode, then force an event to check if the current touch 760 // is under a new page (to scroll to) 761 mDragController.forceMoveEvent(); 762 } 763 } else { 764 // If we are not mid-dragging, hide the page outlines if we are on a large screen 765 if (LauncherApplication.isScreenLarge()) { 766 hideOutlines(); 767 } 768 769 // Hide the scroll indicator as you pan the page 770 if (!mDragController.isDragging()) { 771 hideScrollingIndicator(false); 772 } 773 } 774 mOverScrollMaxBackgroundAlpha = 0.0f; 775 776 if (mDelayedResizeRunnable != null) { 777 mDelayedResizeRunnable.run(); 778 mDelayedResizeRunnable = null; 779 } 780 781 if (mDelayedSnapToPageRunnable != null) { 782 mDelayedSnapToPageRunnable.run(); 783 mDelayedSnapToPageRunnable = null; 784 } 785 } 786 787 @Override 788 protected void notifyPageSwitchListener() { 789 super.notifyPageSwitchListener(); 790 Launcher.setScreen(mCurrentPage); 791 }; 792 793 // As a ratio of screen height, the total distance we want the parallax effect to span 794 // horizontally 795 private float wallpaperTravelToScreenWidthRatio(int width, int height) { 796 float aspectRatio = width / (float) height; 797 798 // At an aspect ratio of 16/10, the wallpaper parallax effect should span 1.5 * screen width 799 // At an aspect ratio of 10/16, the wallpaper parallax effect should span 1.2 * screen width 800 // We will use these two data points to extrapolate how much the wallpaper parallax effect 801 // to span (ie travel) at any aspect ratio: 802 803 final float ASPECT_RATIO_LANDSCAPE = 16/10f; 804 final float ASPECT_RATIO_PORTRAIT = 10/16f; 805 final float WALLPAPER_WIDTH_TO_SCREEN_RATIO_LANDSCAPE = 1.5f; 806 final float WALLPAPER_WIDTH_TO_SCREEN_RATIO_PORTRAIT = 1.2f; 807 808 // To find out the desired width at different aspect ratios, we use the following two 809 // formulas, where the coefficient on x is the aspect ratio (width/height): 810 // (16/10)x + y = 1.5 811 // (10/16)x + y = 1.2 812 // We solve for x and y and end up with a final formula: 813 final float x = 814 (WALLPAPER_WIDTH_TO_SCREEN_RATIO_LANDSCAPE - WALLPAPER_WIDTH_TO_SCREEN_RATIO_PORTRAIT) / 815 (ASPECT_RATIO_LANDSCAPE - ASPECT_RATIO_PORTRAIT); 816 final float y = WALLPAPER_WIDTH_TO_SCREEN_RATIO_PORTRAIT - x * ASPECT_RATIO_PORTRAIT; 817 return x * aspectRatio + y; 818 } 819 820 // The range of scroll values for Workspace 821 private int getScrollRange() { 822 return getChildOffset(getChildCount() - 1) - getChildOffset(0); 823 } 824 825 protected void setWallpaperDimension() { 826 Point minDims = new Point(); 827 Point maxDims = new Point(); 828 mLauncher.getWindowManager().getDefaultDisplay().getCurrentSizeRange(minDims, maxDims); 829 830 final int maxDim = Math.max(maxDims.x, maxDims.y); 831 final int minDim = Math.min(minDims.x, minDims.y); 832 833 // We need to ensure that there is enough extra space in the wallpaper for the intended 834 // parallax effects 835 if (LauncherApplication.isScreenLarge()) { 836 mWallpaperWidth = (int) (maxDim * wallpaperTravelToScreenWidthRatio(maxDim, minDim)); 837 mWallpaperHeight = maxDim; 838 } else { 839 mWallpaperWidth = Math.max((int) (minDim * WALLPAPER_SCREENS_SPAN), maxDim); 840 mWallpaperHeight = maxDim; 841 } 842 new Thread("setWallpaperDimension") { 843 public void run() { 844 mWallpaperManager.suggestDesiredDimensions(mWallpaperWidth, mWallpaperHeight); 845 } 846 }.start(); 847 } 848 849 private float wallpaperOffsetForCurrentScroll() { 850 // Set wallpaper offset steps (1 / (number of screens - 1)) 851 mWallpaperManager.setWallpaperOffsetSteps(1.0f / (getChildCount() - 1), 1.0f); 852 853 // For the purposes of computing the scrollRange and overScrollOffset, we assume 854 // that mLayoutScale is 1. This means that when we're in spring-loaded mode, 855 // there's no discrepancy between the wallpaper offset for a given page. 856 float layoutScale = mLayoutScale; 857 mLayoutScale = 1f; 858 int scrollRange = getScrollRange(); 859 860 // Again, we adjust the wallpaper offset to be consistent between values of mLayoutScale 861 float adjustedScrollX = Math.max(0, Math.min(getScrollX(), mMaxScrollX)); 862 adjustedScrollX *= mWallpaperScrollRatio; 863 mLayoutScale = layoutScale; 864 865 float scrollProgress = 866 adjustedScrollX / (float) scrollRange; 867 868 if (LauncherApplication.isScreenLarge() && mIsStaticWallpaper) { 869 // The wallpaper travel width is how far, from left to right, the wallpaper will move 870 // at this orientation. On tablets in portrait mode we don't move all the way to the 871 // edges of the wallpaper, or otherwise the parallax effect would be too strong. 872 int wallpaperTravelWidth = Math.min(mWallpaperTravelWidth, mWallpaperWidth); 873 874 float offsetInDips = wallpaperTravelWidth * scrollProgress + 875 (mWallpaperWidth - wallpaperTravelWidth) / 2; // center it 876 float offset = offsetInDips / (float) mWallpaperWidth; 877 return offset; 878 } else { 879 return scrollProgress; 880 } 881 } 882 883 private void syncWallpaperOffsetWithScroll() { 884 final boolean enableWallpaperEffects = isHardwareAccelerated(); 885 if (enableWallpaperEffects) { 886 mWallpaperOffset.setFinalX(wallpaperOffsetForCurrentScroll()); 887 } 888 } 889 890 public void updateWallpaperOffsetImmediately() { 891 mUpdateWallpaperOffsetImmediately = true; 892 } 893 894 private void updateWallpaperOffsets() { 895 boolean updateNow = false; 896 boolean keepUpdating = true; 897 if (mUpdateWallpaperOffsetImmediately) { 898 updateNow = true; 899 keepUpdating = false; 900 mWallpaperOffset.jumpToFinal(); 901 mUpdateWallpaperOffsetImmediately = false; 902 } else { 903 updateNow = keepUpdating = mWallpaperOffset.computeScrollOffset(); 904 } 905 if (updateNow) { 906 if (mWindowToken != null) { 907 mWallpaperManager.setWallpaperOffsets(mWindowToken, 908 mWallpaperOffset.getCurrX(), mWallpaperOffset.getCurrY()); 909 } 910 } 911 if (keepUpdating) { 912 invalidate(); 913 } 914 } 915 916 @Override 917 protected void updateCurrentPageScroll() { 918 super.updateCurrentPageScroll(); 919 computeWallpaperScrollRatio(mCurrentPage); 920 } 921 922 @Override 923 protected void snapToPage(int whichPage) { 924 super.snapToPage(whichPage); 925 computeWallpaperScrollRatio(whichPage); 926 } 927 928 @Override 929 protected void snapToPage(int whichPage, int duration) { 930 super.snapToPage(whichPage, duration); 931 computeWallpaperScrollRatio(whichPage); 932 } 933 934 protected void snapToPage(int whichPage, Runnable r) { 935 if (mDelayedSnapToPageRunnable != null) { 936 mDelayedSnapToPageRunnable.run(); 937 } 938 mDelayedSnapToPageRunnable = r; 939 snapToPage(whichPage, SLOW_PAGE_SNAP_ANIMATION_DURATION); 940 } 941 942 private void computeWallpaperScrollRatio(int page) { 943 // Here, we determine what the desired scroll would be with and without a layout scale, 944 // and compute a ratio between the two. This allows us to adjust the wallpaper offset 945 // as though there is no layout scale. 946 float layoutScale = mLayoutScale; 947 int scaled = getChildOffset(page) - getRelativeChildOffset(page); 948 mLayoutScale = 1.0f; 949 float unscaled = getChildOffset(page) - getRelativeChildOffset(page); 950 mLayoutScale = layoutScale; 951 if (scaled > 0) { 952 mWallpaperScrollRatio = (1.0f * unscaled) / scaled; 953 } else { 954 mWallpaperScrollRatio = 1f; 955 } 956 } 957 958 class WallpaperOffsetInterpolator { 959 float mFinalHorizontalWallpaperOffset = 0.0f; 960 float mFinalVerticalWallpaperOffset = 0.5f; 961 float mHorizontalWallpaperOffset = 0.0f; 962 float mVerticalWallpaperOffset = 0.5f; 963 long mLastWallpaperOffsetUpdateTime; 964 boolean mIsMovingFast; 965 boolean mOverrideHorizontalCatchupConstant; 966 float mHorizontalCatchupConstant = 0.35f; 967 float mVerticalCatchupConstant = 0.35f; 968 969 public WallpaperOffsetInterpolator() { 970 } 971 972 public void setOverrideHorizontalCatchupConstant(boolean override) { 973 mOverrideHorizontalCatchupConstant = override; 974 } 975 976 public void setHorizontalCatchupConstant(float f) { 977 mHorizontalCatchupConstant = f; 978 } 979 980 public void setVerticalCatchupConstant(float f) { 981 mVerticalCatchupConstant = f; 982 } 983 984 public boolean computeScrollOffset() { 985 if (Float.compare(mHorizontalWallpaperOffset, mFinalHorizontalWallpaperOffset) == 0 && 986 Float.compare(mVerticalWallpaperOffset, mFinalVerticalWallpaperOffset) == 0) { 987 mIsMovingFast = false; 988 return false; 989 } 990 boolean isLandscape = mDisplaySize.x > mDisplaySize.y; 991 992 long currentTime = System.currentTimeMillis(); 993 long timeSinceLastUpdate = currentTime - mLastWallpaperOffsetUpdateTime; 994 timeSinceLastUpdate = Math.min((long) (1000/30f), timeSinceLastUpdate); 995 timeSinceLastUpdate = Math.max(1L, timeSinceLastUpdate); 996 997 float xdiff = Math.abs(mFinalHorizontalWallpaperOffset - mHorizontalWallpaperOffset); 998 if (!mIsMovingFast && xdiff > 0.07) { 999 mIsMovingFast = true; 1000 } 1001 1002 float fractionToCatchUpIn1MsHorizontal; 1003 if (mOverrideHorizontalCatchupConstant) { 1004 fractionToCatchUpIn1MsHorizontal = mHorizontalCatchupConstant; 1005 } else if (mIsMovingFast) { 1006 fractionToCatchUpIn1MsHorizontal = isLandscape ? 0.5f : 0.75f; 1007 } else { 1008 // slow 1009 fractionToCatchUpIn1MsHorizontal = isLandscape ? 0.27f : 0.5f; 1010 } 1011 float fractionToCatchUpIn1MsVertical = mVerticalCatchupConstant; 1012 1013 fractionToCatchUpIn1MsHorizontal /= 33f; 1014 fractionToCatchUpIn1MsVertical /= 33f; 1015 1016 final float UPDATE_THRESHOLD = 0.00001f; 1017 float hOffsetDelta = mFinalHorizontalWallpaperOffset - mHorizontalWallpaperOffset; 1018 float vOffsetDelta = mFinalVerticalWallpaperOffset - mVerticalWallpaperOffset; 1019 boolean jumpToFinalValue = Math.abs(hOffsetDelta) < UPDATE_THRESHOLD && 1020 Math.abs(vOffsetDelta) < UPDATE_THRESHOLD; 1021 1022 // Don't have any lag between workspace and wallpaper on non-large devices 1023 if (!LauncherApplication.isScreenLarge() || jumpToFinalValue) { 1024 mHorizontalWallpaperOffset = mFinalHorizontalWallpaperOffset; 1025 mVerticalWallpaperOffset = mFinalVerticalWallpaperOffset; 1026 } else { 1027 float percentToCatchUpVertical = 1028 Math.min(1.0f, timeSinceLastUpdate * fractionToCatchUpIn1MsVertical); 1029 float percentToCatchUpHorizontal = 1030 Math.min(1.0f, timeSinceLastUpdate * fractionToCatchUpIn1MsHorizontal); 1031 mHorizontalWallpaperOffset += percentToCatchUpHorizontal * hOffsetDelta; 1032 mVerticalWallpaperOffset += percentToCatchUpVertical * vOffsetDelta; 1033 } 1034 1035 mLastWallpaperOffsetUpdateTime = System.currentTimeMillis(); 1036 return true; 1037 } 1038 1039 public float getCurrX() { 1040 return mHorizontalWallpaperOffset; 1041 } 1042 1043 public float getFinalX() { 1044 return mFinalHorizontalWallpaperOffset; 1045 } 1046 1047 public float getCurrY() { 1048 return mVerticalWallpaperOffset; 1049 } 1050 1051 public float getFinalY() { 1052 return mFinalVerticalWallpaperOffset; 1053 } 1054 1055 public void setFinalX(float x) { 1056 mFinalHorizontalWallpaperOffset = Math.max(0f, Math.min(x, 1.0f)); 1057 } 1058 1059 public void setFinalY(float y) { 1060 mFinalVerticalWallpaperOffset = Math.max(0f, Math.min(y, 1.0f)); 1061 } 1062 1063 public void jumpToFinal() { 1064 mHorizontalWallpaperOffset = mFinalHorizontalWallpaperOffset; 1065 mVerticalWallpaperOffset = mFinalVerticalWallpaperOffset; 1066 } 1067 } 1068 1069 @Override 1070 public void computeScroll() { 1071 super.computeScroll(); 1072 syncWallpaperOffsetWithScroll(); 1073 } 1074 1075 void showOutlines() { 1076 if (!isSmall() && !mIsSwitchingState) { 1077 if (mChildrenOutlineFadeOutAnimation != null) mChildrenOutlineFadeOutAnimation.cancel(); 1078 if (mChildrenOutlineFadeInAnimation != null) mChildrenOutlineFadeInAnimation.cancel(); 1079 mChildrenOutlineFadeInAnimation = LauncherAnimUtils.ofFloat(this, "childrenOutlineAlpha", 1.0f); 1080 mChildrenOutlineFadeInAnimation.setDuration(CHILDREN_OUTLINE_FADE_IN_DURATION); 1081 mChildrenOutlineFadeInAnimation.start(); 1082 } 1083 } 1084 1085 void hideOutlines() { 1086 if (!isSmall() && !mIsSwitchingState) { 1087 if (mChildrenOutlineFadeInAnimation != null) mChildrenOutlineFadeInAnimation.cancel(); 1088 if (mChildrenOutlineFadeOutAnimation != null) mChildrenOutlineFadeOutAnimation.cancel(); 1089 mChildrenOutlineFadeOutAnimation = LauncherAnimUtils.ofFloat(this, "childrenOutlineAlpha", 0.0f); 1090 mChildrenOutlineFadeOutAnimation.setDuration(CHILDREN_OUTLINE_FADE_OUT_DURATION); 1091 mChildrenOutlineFadeOutAnimation.setStartDelay(CHILDREN_OUTLINE_FADE_OUT_DELAY); 1092 mChildrenOutlineFadeOutAnimation.start(); 1093 } 1094 } 1095 1096 public void showOutlinesTemporarily() { 1097 if (!mIsPageMoving && !isTouchActive()) { 1098 snapToPage(mCurrentPage); 1099 } 1100 } 1101 1102 public void setChildrenOutlineAlpha(float alpha) { 1103 mChildrenOutlineAlpha = alpha; 1104 for (int i = 0; i < getChildCount(); i++) { 1105 CellLayout cl = (CellLayout) getChildAt(i); 1106 cl.setBackgroundAlpha(alpha); 1107 } 1108 } 1109 1110 public float getChildrenOutlineAlpha() { 1111 return mChildrenOutlineAlpha; 1112 } 1113 1114 void disableBackground() { 1115 mDrawBackground = false; 1116 } 1117 void enableBackground() { 1118 mDrawBackground = true; 1119 } 1120 1121 private void animateBackgroundGradient(float finalAlpha, boolean animated) { 1122 if (mBackground == null) return; 1123 if (mBackgroundFadeInAnimation != null) { 1124 mBackgroundFadeInAnimation.cancel(); 1125 mBackgroundFadeInAnimation = null; 1126 } 1127 if (mBackgroundFadeOutAnimation != null) { 1128 mBackgroundFadeOutAnimation.cancel(); 1129 mBackgroundFadeOutAnimation = null; 1130 } 1131 float startAlpha = getBackgroundAlpha(); 1132 if (finalAlpha != startAlpha) { 1133 if (animated) { 1134 mBackgroundFadeOutAnimation = LauncherAnimUtils.ofFloat(startAlpha, finalAlpha); 1135 mBackgroundFadeOutAnimation.addUpdateListener(new AnimatorUpdateListener() { 1136 public void onAnimationUpdate(ValueAnimator animation) { 1137 setBackgroundAlpha(((Float) animation.getAnimatedValue()).floatValue()); 1138 } 1139 }); 1140 mBackgroundFadeOutAnimation.setInterpolator(new DecelerateInterpolator(1.5f)); 1141 mBackgroundFadeOutAnimation.setDuration(BACKGROUND_FADE_OUT_DURATION); 1142 mBackgroundFadeOutAnimation.start(); 1143 } else { 1144 setBackgroundAlpha(finalAlpha); 1145 } 1146 } 1147 } 1148 1149 public void setBackgroundAlpha(float alpha) { 1150 if (alpha != mBackgroundAlpha) { 1151 mBackgroundAlpha = alpha; 1152 invalidate(); 1153 } 1154 } 1155 1156 public float getBackgroundAlpha() { 1157 return mBackgroundAlpha; 1158 } 1159 1160 float backgroundAlphaInterpolator(float r) { 1161 float pivotA = 0.1f; 1162 float pivotB = 0.4f; 1163 if (r < pivotA) { 1164 return 0; 1165 } else if (r > pivotB) { 1166 return 1.0f; 1167 } else { 1168 return (r - pivotA)/(pivotB - pivotA); 1169 } 1170 } 1171 1172 float overScrollBackgroundAlphaInterpolator(float r) { 1173 float threshold = 0.08f; 1174 1175 if (r > mOverScrollMaxBackgroundAlpha) { 1176 mOverScrollMaxBackgroundAlpha = r; 1177 } else if (r < mOverScrollMaxBackgroundAlpha) { 1178 r = mOverScrollMaxBackgroundAlpha; 1179 } 1180 1181 return Math.min(r / threshold, 1.0f); 1182 } 1183 1184 private void updatePageAlphaValues(int screenCenter) { 1185 boolean isInOverscroll = mOverScrollX < 0 || mOverScrollX > mMaxScrollX; 1186 if (mWorkspaceFadeInAdjacentScreens && 1187 mState == State.NORMAL && 1188 !mIsSwitchingState && 1189 !isInOverscroll) { 1190 for (int i = 0; i < getChildCount(); i++) { 1191 CellLayout child = (CellLayout) getChildAt(i); 1192 if (child != null) { 1193 float scrollProgress = getScrollProgress(screenCenter, child, i); 1194 float alpha = 1 - Math.abs(scrollProgress); 1195 child.getShortcutsAndWidgets().setAlpha(alpha); 1196 if (!mIsDragOccuring) { 1197 child.setBackgroundAlphaMultiplier( 1198 backgroundAlphaInterpolator(Math.abs(scrollProgress))); 1199 } else { 1200 child.setBackgroundAlphaMultiplier(1f); 1201 } 1202 } 1203 } 1204 } 1205 } 1206 1207 private void setChildrenBackgroundAlphaMultipliers(float a) { 1208 for (int i = 0; i < getChildCount(); i++) { 1209 CellLayout child = (CellLayout) getChildAt(i); 1210 child.setBackgroundAlphaMultiplier(a); 1211 } 1212 } 1213 1214 @Override 1215 protected void screenScrolled(int screenCenter) { 1216 super.screenScrolled(screenCenter); 1217 1218 updatePageAlphaValues(screenCenter); 1219 enableHwLayersOnVisiblePages(); 1220 1221 if (mOverScrollX < 0 || mOverScrollX > mMaxScrollX) { 1222 int index = mOverScrollX < 0 ? 0 : getChildCount() - 1; 1223 CellLayout cl = (CellLayout) getChildAt(index); 1224 float scrollProgress = getScrollProgress(screenCenter, cl, index); 1225 cl.setOverScrollAmount(Math.abs(scrollProgress), index == 0); 1226 float rotation = - WORKSPACE_OVERSCROLL_ROTATION * scrollProgress; 1227 cl.setRotationY(rotation); 1228 setFadeForOverScroll(Math.abs(scrollProgress)); 1229 if (!mOverscrollTransformsSet) { 1230 mOverscrollTransformsSet = true; 1231 cl.setCameraDistance(mDensity * mCameraDistance); 1232 cl.setPivotX(cl.getMeasuredWidth() * (index == 0 ? 0.75f : 0.25f)); 1233 cl.setPivotY(cl.getMeasuredHeight() * 0.5f); 1234 cl.setOverscrollTransformsDirty(true); 1235 } 1236 } else { 1237 if (mOverscrollFade != 0) { 1238 setFadeForOverScroll(0); 1239 } 1240 if (mOverscrollTransformsSet) { 1241 mOverscrollTransformsSet = false; 1242 ((CellLayout) getChildAt(0)).resetOverscrollTransforms(); 1243 ((CellLayout) getChildAt(getChildCount() - 1)).resetOverscrollTransforms(); 1244 } 1245 } 1246 } 1247 1248 @Override 1249 protected void overScroll(float amount) { 1250 acceleratedOverScroll(amount); 1251 } 1252 1253 protected void onAttachedToWindow() { 1254 super.onAttachedToWindow(); 1255 mWindowToken = getWindowToken(); 1256 computeScroll(); 1257 mDragController.setWindowToken(mWindowToken); 1258 } 1259 1260 protected void onDetachedFromWindow() { 1261 mWindowToken = null; 1262 } 1263 1264 @Override 1265 protected void onLayout(boolean changed, int left, int top, int right, int bottom) { 1266 if (mFirstLayout && mCurrentPage >= 0 && mCurrentPage < getChildCount()) { 1267 mUpdateWallpaperOffsetImmediately = true; 1268 } 1269 super.onLayout(changed, left, top, right, bottom); 1270 } 1271 1272 @Override 1273 protected void onDraw(Canvas canvas) { 1274 updateWallpaperOffsets(); 1275 1276 // Draw the background gradient if necessary 1277 if (mBackground != null && mBackgroundAlpha > 0.0f && mDrawBackground) { 1278 int alpha = (int) (mBackgroundAlpha * 255); 1279 mBackground.setAlpha(alpha); 1280 mBackground.setBounds(getScrollX(), 0, getScrollX() + getMeasuredWidth(), 1281 getMeasuredHeight()); 1282 mBackground.draw(canvas); 1283 } 1284 1285 super.onDraw(canvas); 1286 } 1287 1288 boolean isDrawingBackgroundGradient() { 1289 return (mBackground != null && mBackgroundAlpha > 0.0f && mDrawBackground); 1290 } 1291 1292 @Override 1293 protected boolean onRequestFocusInDescendants(int direction, Rect previouslyFocusedRect) { 1294 if (!mLauncher.isAllAppsVisible()) { 1295 final Folder openFolder = getOpenFolder(); 1296 if (openFolder != null) { 1297 return openFolder.requestFocus(direction, previouslyFocusedRect); 1298 } else { 1299 return super.onRequestFocusInDescendants(direction, previouslyFocusedRect); 1300 } 1301 } 1302 return false; 1303 } 1304 1305 @Override 1306 public int getDescendantFocusability() { 1307 if (isSmall()) { 1308 return ViewGroup.FOCUS_BLOCK_DESCENDANTS; 1309 } 1310 return super.getDescendantFocusability(); 1311 } 1312 1313 @Override 1314 public void addFocusables(ArrayList<View> views, int direction, int focusableMode) { 1315 if (!mLauncher.isAllAppsVisible()) { 1316 final Folder openFolder = getOpenFolder(); 1317 if (openFolder != null) { 1318 openFolder.addFocusables(views, direction); 1319 } else { 1320 super.addFocusables(views, direction, focusableMode); 1321 } 1322 } 1323 } 1324 1325 public boolean isSmall() { 1326 return mState == State.SMALL || mState == State.SPRING_LOADED; 1327 } 1328 1329 void enableChildrenCache(int fromPage, int toPage) { 1330 if (fromPage > toPage) { 1331 final int temp = fromPage; 1332 fromPage = toPage; 1333 toPage = temp; 1334 } 1335 1336 final int screenCount = getChildCount(); 1337 1338 fromPage = Math.max(fromPage, 0); 1339 toPage = Math.min(toPage, screenCount - 1); 1340 1341 for (int i = fromPage; i <= toPage; i++) { 1342 final CellLayout layout = (CellLayout) getChildAt(i); 1343 layout.setChildrenDrawnWithCacheEnabled(true); 1344 layout.setChildrenDrawingCacheEnabled(true); 1345 } 1346 } 1347 1348 void clearChildrenCache() { 1349 final int screenCount = getChildCount(); 1350 for (int i = 0; i < screenCount; i++) { 1351 final CellLayout layout = (CellLayout) getChildAt(i); 1352 layout.setChildrenDrawnWithCacheEnabled(false); 1353 // In software mode, we don't want the items to continue to be drawn into bitmaps 1354 if (!isHardwareAccelerated()) { 1355 layout.setChildrenDrawingCacheEnabled(false); 1356 } 1357 } 1358 } 1359 1360 1361 private void updateChildrenLayersEnabled(boolean force) { 1362 boolean small = mState == State.SMALL || mIsSwitchingState; 1363 boolean enableChildrenLayers = force || small || mAnimatingViewIntoPlace || isPageMoving(); 1364 1365 if (enableChildrenLayers != mChildrenLayersEnabled) { 1366 mChildrenLayersEnabled = enableChildrenLayers; 1367 if (mChildrenLayersEnabled) { 1368 enableHwLayersOnVisiblePages(); 1369 } else { 1370 for (int i = 0; i < getPageCount(); i++) { 1371 final CellLayout cl = (CellLayout) getChildAt(i); 1372 cl.disableHardwareLayers(); 1373 } 1374 } 1375 } 1376 } 1377 1378 private void enableHwLayersOnVisiblePages() { 1379 if (mChildrenLayersEnabled) { 1380 final int screenCount = getChildCount(); 1381 getVisiblePages(mTempVisiblePagesRange); 1382 int leftScreen = mTempVisiblePagesRange[0]; 1383 int rightScreen = mTempVisiblePagesRange[1]; 1384 if (leftScreen == rightScreen) { 1385 // make sure we're caching at least two pages always 1386 if (rightScreen < screenCount - 1) { 1387 rightScreen++; 1388 } else if (leftScreen > 0) { 1389 leftScreen--; 1390 } 1391 } 1392 for (int i = 0; i < screenCount; i++) { 1393 final CellLayout layout = (CellLayout) getChildAt(i); 1394 if (!(leftScreen <= i && i <= rightScreen && shouldDrawChild(layout))) { 1395 layout.disableHardwareLayers(); 1396 } 1397 } 1398 for (int i = 0; i < screenCount; i++) { 1399 final CellLayout layout = (CellLayout) getChildAt(i); 1400 if (leftScreen <= i && i <= rightScreen && shouldDrawChild(layout)) { 1401 layout.enableHardwareLayers(); 1402 } 1403 } 1404 } 1405 } 1406 1407 public void buildPageHardwareLayers() { 1408 // force layers to be enabled just for the call to buildLayer 1409 updateChildrenLayersEnabled(true); 1410 if (getWindowToken() != null) { 1411 final int childCount = getChildCount(); 1412 for (int i = 0; i < childCount; i++) { 1413 CellLayout cl = (CellLayout) getChildAt(i); 1414 cl.buildHardwareLayer(); 1415 } 1416 } 1417 updateChildrenLayersEnabled(false); 1418 } 1419 1420 protected void onWallpaperTap(MotionEvent ev) { 1421 final int[] position = mTempCell; 1422 getLocationOnScreen(position); 1423 1424 int pointerIndex = ev.getActionIndex(); 1425 position[0] += (int) ev.getX(pointerIndex); 1426 position[1] += (int) ev.getY(pointerIndex); 1427 1428 mWallpaperManager.sendWallpaperCommand(getWindowToken(), 1429 ev.getAction() == MotionEvent.ACTION_UP 1430 ? WallpaperManager.COMMAND_TAP : WallpaperManager.COMMAND_SECONDARY_TAP, 1431 position[0], position[1], 0, null); 1432 } 1433 1434 /* 1435 * This interpolator emulates the rate at which the perceived scale of an object changes 1436 * as its distance from a camera increases. When this interpolator is applied to a scale 1437 * animation on a view, it evokes the sense that the object is shrinking due to moving away 1438 * from the camera. 1439 */ 1440 static class ZInterpolator implements TimeInterpolator { 1441 private float focalLength; 1442 1443 public ZInterpolator(float foc) { 1444 focalLength = foc; 1445 } 1446 1447 public float getInterpolation(float input) { 1448 return (1.0f - focalLength / (focalLength + input)) / 1449 (1.0f - focalLength / (focalLength + 1.0f)); 1450 } 1451 } 1452 1453 /* 1454 * The exact reverse of ZInterpolator. 1455 */ 1456 static class InverseZInterpolator implements TimeInterpolator { 1457 private ZInterpolator zInterpolator; 1458 public InverseZInterpolator(float foc) { 1459 zInterpolator = new ZInterpolator(foc); 1460 } 1461 public float getInterpolation(float input) { 1462 return 1 - zInterpolator.getInterpolation(1 - input); 1463 } 1464 } 1465 1466 /* 1467 * ZInterpolator compounded with an ease-out. 1468 */ 1469 static class ZoomOutInterpolator implements TimeInterpolator { 1470 private final DecelerateInterpolator decelerate = new DecelerateInterpolator(0.75f); 1471 private final ZInterpolator zInterpolator = new ZInterpolator(0.13f); 1472 1473 public float getInterpolation(float input) { 1474 return decelerate.getInterpolation(zInterpolator.getInterpolation(input)); 1475 } 1476 } 1477 1478 /* 1479 * InvereZInterpolator compounded with an ease-out. 1480 */ 1481 static class ZoomInInterpolator implements TimeInterpolator { 1482 private final InverseZInterpolator inverseZInterpolator = new InverseZInterpolator(0.35f); 1483 private final DecelerateInterpolator decelerate = new DecelerateInterpolator(3.0f); 1484 1485 public float getInterpolation(float input) { 1486 return decelerate.getInterpolation(inverseZInterpolator.getInterpolation(input)); 1487 } 1488 } 1489 1490 private final ZoomInInterpolator mZoomInInterpolator = new ZoomInInterpolator(); 1491 1492 /* 1493 * 1494 * We call these methods (onDragStartedWithItemSpans/onDragStartedWithSize) whenever we 1495 * start a drag in Launcher, regardless of whether the drag has ever entered the Workspace 1496 * 1497 * These methods mark the appropriate pages as accepting drops (which alters their visual 1498 * appearance). 1499 * 1500 */ 1501 public void onDragStartedWithItem(View v) { 1502 final Canvas canvas = new Canvas(); 1503 1504 // The outline is used to visualize where the item will land if dropped 1505 mDragOutline = createDragOutline(v, canvas, DRAG_BITMAP_PADDING); 1506 } 1507 1508 public void onDragStartedWithItem(PendingAddItemInfo info, Bitmap b, boolean clipAlpha) { 1509 final Canvas canvas = new Canvas(); 1510 1511 int[] size = estimateItemSize(info.spanX, info.spanY, info, false); 1512 1513 // The outline is used to visualize where the item will land if dropped 1514 mDragOutline = createDragOutline(b, canvas, DRAG_BITMAP_PADDING, size[0], 1515 size[1], clipAlpha); 1516 } 1517 1518 public void exitWidgetResizeMode() { 1519 DragLayer dragLayer = mLauncher.getDragLayer(); 1520 dragLayer.clearAllResizeFrames(); 1521 } 1522 1523 private void initAnimationArrays() { 1524 final int childCount = getChildCount(); 1525 if (mOldTranslationXs != null) return; 1526 mOldTranslationXs = new float[childCount]; 1527 mOldTranslationYs = new float[childCount]; 1528 mOldScaleXs = new float[childCount]; 1529 mOldScaleYs = new float[childCount]; 1530 mOldBackgroundAlphas = new float[childCount]; 1531 mOldAlphas = new float[childCount]; 1532 mNewTranslationXs = new float[childCount]; 1533 mNewTranslationYs = new float[childCount]; 1534 mNewScaleXs = new float[childCount]; 1535 mNewScaleYs = new float[childCount]; 1536 mNewBackgroundAlphas = new float[childCount]; 1537 mNewAlphas = new float[childCount]; 1538 mNewRotationYs = new float[childCount]; 1539 } 1540 1541 Animator getChangeStateAnimation(final State state, boolean animated) { 1542 return getChangeStateAnimation(state, animated, 0); 1543 } 1544 1545 Animator getChangeStateAnimation(final State state, boolean animated, int delay) { 1546 if (mState == state) { 1547 return null; 1548 } 1549 1550 // Initialize animation arrays for the first time if necessary 1551 initAnimationArrays(); 1552 1553 AnimatorSet anim = animated ? LauncherAnimUtils.createAnimatorSet() : null; 1554 1555 // Stop any scrolling, move to the current page right away 1556 setCurrentPage(getNextPage()); 1557 1558 final State oldState = mState; 1559 final boolean oldStateIsNormal = (oldState == State.NORMAL); 1560 final boolean oldStateIsSpringLoaded = (oldState == State.SPRING_LOADED); 1561 final boolean oldStateIsSmall = (oldState == State.SMALL); 1562 mState = state; 1563 final boolean stateIsNormal = (state == State.NORMAL); 1564 final boolean stateIsSpringLoaded = (state == State.SPRING_LOADED); 1565 final boolean stateIsSmall = (state == State.SMALL); 1566 float finalScaleFactor = 1.0f; 1567 float finalBackgroundAlpha = stateIsSpringLoaded ? 1.0f : 0f; 1568 float translationX = 0; 1569 float translationY = 0; 1570 boolean zoomIn = true; 1571 1572 if (state != State.NORMAL) { 1573 finalScaleFactor = mSpringLoadedShrinkFactor - (stateIsSmall ? 0.1f : 0); 1574 setPageSpacing(mSpringLoadedPageSpacing); 1575 if (oldStateIsNormal && stateIsSmall) { 1576 zoomIn = false; 1577 setLayoutScale(finalScaleFactor); 1578 updateChildrenLayersEnabled(false); 1579 } else { 1580 finalBackgroundAlpha = 1.0f; 1581 setLayoutScale(finalScaleFactor); 1582 } 1583 } else { 1584 setPageSpacing(PagedView.AUTOMATIC_PAGE_SPACING); 1585 setLayoutScale(1.0f); 1586 } 1587 1588 final int duration = zoomIn ? 1589 getResources().getInteger(R.integer.config_workspaceUnshrinkTime) : 1590 getResources().getInteger(R.integer.config_appsCustomizeWorkspaceShrinkTime); 1591 for (int i = 0; i < getChildCount(); i++) { 1592 final CellLayout cl = (CellLayout) getChildAt(i); 1593 float finalAlpha = (!mWorkspaceFadeInAdjacentScreens || stateIsSpringLoaded || 1594 (i == mCurrentPage)) ? 1f : 0f; 1595 float currentAlpha = cl.getShortcutsAndWidgets().getAlpha(); 1596 float initialAlpha = currentAlpha; 1597 1598 // Determine the pages alpha during the state transition 1599 if ((oldStateIsSmall && stateIsNormal) || 1600 (oldStateIsNormal && stateIsSmall)) { 1601 // To/from workspace - only show the current page unless the transition is not 1602 // animated and the animation end callback below doesn't run; 1603 // or, if we're in spring-loaded mode 1604 if (i == mCurrentPage || !animated || oldStateIsSpringLoaded) { 1605 finalAlpha = 1f; 1606 } else { 1607 initialAlpha = 0f; 1608 finalAlpha = 0f; 1609 } 1610 } 1611 1612 mOldAlphas[i] = initialAlpha; 1613 mNewAlphas[i] = finalAlpha; 1614 if (animated) { 1615 mOldTranslationXs[i] = cl.getTranslationX(); 1616 mOldTranslationYs[i] = cl.getTranslationY(); 1617 mOldScaleXs[i] = cl.getScaleX(); 1618 mOldScaleYs[i] = cl.getScaleY(); 1619 mOldBackgroundAlphas[i] = cl.getBackgroundAlpha(); 1620 1621 mNewTranslationXs[i] = translationX; 1622 mNewTranslationYs[i] = translationY; 1623 mNewScaleXs[i] = finalScaleFactor; 1624 mNewScaleYs[i] = finalScaleFactor; 1625 mNewBackgroundAlphas[i] = finalBackgroundAlpha; 1626 } else { 1627 cl.setTranslationX(translationX); 1628 cl.setTranslationY(translationY); 1629 cl.setScaleX(finalScaleFactor); 1630 cl.setScaleY(finalScaleFactor); 1631 cl.setBackgroundAlpha(finalBackgroundAlpha); 1632 cl.setShortcutAndWidgetAlpha(finalAlpha); 1633 } 1634 } 1635 1636 if (animated) { 1637 for (int index = 0; index < getChildCount(); index++) { 1638 final int i = index; 1639 final CellLayout cl = (CellLayout) getChildAt(i); 1640 float currentAlpha = cl.getShortcutsAndWidgets().getAlpha(); 1641 if (mOldAlphas[i] == 0 && mNewAlphas[i] == 0) { 1642 cl.setTranslationX(mNewTranslationXs[i]); 1643 cl.setTranslationY(mNewTranslationYs[i]); 1644 cl.setScaleX(mNewScaleXs[i]); 1645 cl.setScaleY(mNewScaleYs[i]); 1646 cl.setBackgroundAlpha(mNewBackgroundAlphas[i]); 1647 cl.setShortcutAndWidgetAlpha(mNewAlphas[i]); 1648 cl.setRotationY(mNewRotationYs[i]); 1649 } else { 1650 LauncherViewPropertyAnimator a = new LauncherViewPropertyAnimator(cl); 1651 a.translationX(mNewTranslationXs[i]) 1652 .translationY(mNewTranslationYs[i]) 1653 .scaleX(mNewScaleXs[i]) 1654 .scaleY(mNewScaleYs[i]) 1655 .setDuration(duration) 1656 .setInterpolator(mZoomInInterpolator); 1657 anim.play(a); 1658 1659 if (mOldAlphas[i] != mNewAlphas[i] || currentAlpha != mNewAlphas[i]) { 1660 LauncherViewPropertyAnimator alphaAnim = 1661 new LauncherViewPropertyAnimator(cl.getShortcutsAndWidgets()); 1662 alphaAnim.alpha(mNewAlphas[i]) 1663 .setDuration(duration) 1664 .setInterpolator(mZoomInInterpolator); 1665 anim.play(alphaAnim); 1666 } 1667 if (mOldBackgroundAlphas[i] != 0 || 1668 mNewBackgroundAlphas[i] != 0) { 1669 ValueAnimator bgAnim = LauncherAnimUtils.ofFloat(0f, 1f).setDuration(duration); 1670 bgAnim.setInterpolator(mZoomInInterpolator); 1671 bgAnim.addUpdateListener(new LauncherAnimatorUpdateListener() { 1672 public void onAnimationUpdate(float a, float b) { 1673 cl.setBackgroundAlpha( 1674 a * mOldBackgroundAlphas[i] + 1675 b * mNewBackgroundAlphas[i]); 1676 } 1677 }); 1678 anim.play(bgAnim); 1679 } 1680 } 1681 } 1682 buildPageHardwareLayers(); 1683 anim.setStartDelay(delay); 1684 } 1685 1686 if (stateIsSpringLoaded) { 1687 // Right now we're covered by Apps Customize 1688 // Show the background gradient immediately, so the gradient will 1689 // be showing once AppsCustomize disappears 1690 animateBackgroundGradient(getResources().getInteger( 1691 R.integer.config_appsCustomizeSpringLoadedBgAlpha) / 100f, false); 1692 } else { 1693 // Fade the background gradient away 1694 animateBackgroundGradient(0f, true); 1695 } 1696 return anim; 1697 } 1698 1699 @Override 1700 public void onLauncherTransitionPrepare(Launcher l, boolean animated, boolean toWorkspace) { 1701 mIsSwitchingState = true; 1702 cancelScrollingIndicatorAnimations(); 1703 } 1704 1705 @Override 1706 public void onLauncherTransitionStart(Launcher l, boolean animated, boolean toWorkspace) { 1707 } 1708 1709 @Override 1710 public void onLauncherTransitionStep(Launcher l, float t) { 1711 mTransitionProgress = t; 1712 } 1713 1714 @Override 1715 public void onLauncherTransitionEnd(Launcher l, boolean animated, boolean toWorkspace) { 1716 mIsSwitchingState = false; 1717 mWallpaperOffset.setOverrideHorizontalCatchupConstant(false); 1718 updateChildrenLayersEnabled(false); 1719 // The code in getChangeStateAnimation to determine initialAlpha and finalAlpha will ensure 1720 // ensure that only the current page is visible during (and subsequently, after) the 1721 // transition animation. If fade adjacent pages is disabled, then re-enable the page 1722 // visibility after the transition animation. 1723 if (!mWorkspaceFadeInAdjacentScreens) { 1724 for (int i = 0; i < getChildCount(); i++) { 1725 final CellLayout cl = (CellLayout) getChildAt(i); 1726 cl.setShortcutAndWidgetAlpha(1f); 1727 } 1728 } 1729 } 1730 1731 @Override 1732 public View getContent() { 1733 return this; 1734 } 1735 1736 /** 1737 * Draw the View v into the given Canvas. 1738 * 1739 * @param v the view to draw 1740 * @param destCanvas the canvas to draw on 1741 * @param padding the horizontal and vertical padding to use when drawing 1742 */ 1743 private void drawDragView(View v, Canvas destCanvas, int padding, boolean pruneToDrawable) { 1744 final Rect clipRect = mTempRect; 1745 v.getDrawingRect(clipRect); 1746 1747 boolean textVisible = false; 1748 1749 destCanvas.save(); 1750 if (v instanceof TextView && pruneToDrawable) { 1751 Drawable d = ((TextView) v).getCompoundDrawables()[1]; 1752 clipRect.set(0, 0, d.getIntrinsicWidth() + padding, d.getIntrinsicHeight() + padding); 1753 destCanvas.translate(padding / 2, padding / 2); 1754 d.draw(destCanvas); 1755 } else { 1756 if (v instanceof FolderIcon) { 1757 // For FolderIcons the text can bleed into the icon area, and so we need to 1758 // hide the text completely (which can't be achieved by clipping). 1759 if (((FolderIcon) v).getTextVisible()) { 1760 ((FolderIcon) v).setTextVisible(false); 1761 textVisible = true; 1762 } 1763 } else if (v instanceof BubbleTextView) { 1764 final BubbleTextView tv = (BubbleTextView) v; 1765 clipRect.bottom = tv.getExtendedPaddingTop() - (int) BubbleTextView.PADDING_V + 1766 tv.getLayout().getLineTop(0); 1767 } else if (v instanceof TextView) { 1768 final TextView tv = (TextView) v; 1769 clipRect.bottom = tv.getExtendedPaddingTop() - tv.getCompoundDrawablePadding() + 1770 tv.getLayout().getLineTop(0); 1771 } 1772 destCanvas.translate(-v.getScrollX() + padding / 2, -v.getScrollY() + padding / 2); 1773 destCanvas.clipRect(clipRect, Op.REPLACE); 1774 v.draw(destCanvas); 1775 1776 // Restore text visibility of FolderIcon if necessary 1777 if (textVisible) { 1778 ((FolderIcon) v).setTextVisible(true); 1779 } 1780 } 1781 destCanvas.restore(); 1782 } 1783 1784 /** 1785 * Returns a new bitmap to show when the given View is being dragged around. 1786 * Responsibility for the bitmap is transferred to the caller. 1787 */ 1788 public Bitmap createDragBitmap(View v, Canvas canvas, int padding) { 1789 Bitmap b; 1790 1791 if (v instanceof TextView) { 1792 Drawable d = ((TextView) v).getCompoundDrawables()[1]; 1793 b = Bitmap.createBitmap(d.getIntrinsicWidth() + padding, 1794 d.getIntrinsicHeight() + padding, Bitmap.Config.ARGB_8888); 1795 } else { 1796 b = Bitmap.createBitmap( 1797 v.getWidth() + padding, v.getHeight() + padding, Bitmap.Config.ARGB_8888); 1798 } 1799 1800 canvas.setBitmap(b); 1801 drawDragView(v, canvas, padding, true); 1802 canvas.setBitmap(null); 1803 1804 return b; 1805 } 1806 1807 /** 1808 * Returns a new bitmap to be used as the object outline, e.g. to visualize the drop location. 1809 * Responsibility for the bitmap is transferred to the caller. 1810 */ 1811 private Bitmap createDragOutline(View v, Canvas canvas, int padding) { 1812 final int outlineColor = getResources().getColor(android.R.color.holo_blue_light); 1813 final Bitmap b = Bitmap.createBitmap( 1814 v.getWidth() + padding, v.getHeight() + padding, Bitmap.Config.ARGB_8888); 1815 1816 canvas.setBitmap(b); 1817 drawDragView(v, canvas, padding, true); 1818 mOutlineHelper.applyMediumExpensiveOutlineWithBlur(b, canvas, outlineColor, outlineColor); 1819 canvas.setBitmap(null); 1820 return b; 1821 } 1822 1823 /** 1824 * Returns a new bitmap to be used as the object outline, e.g. to visualize the drop location. 1825 * Responsibility for the bitmap is transferred to the caller. 1826 */ 1827 private Bitmap createDragOutline(Bitmap orig, Canvas canvas, int padding, int w, int h, 1828 boolean clipAlpha) { 1829 final int outlineColor = getResources().getColor(android.R.color.holo_blue_light); 1830 final Bitmap b = Bitmap.createBitmap(w, h, Bitmap.Config.ARGB_8888); 1831 canvas.setBitmap(b); 1832 1833 Rect src = new Rect(0, 0, orig.getWidth(), orig.getHeight()); 1834 float scaleFactor = Math.min((w - padding) / (float) orig.getWidth(), 1835 (h - padding) / (float) orig.getHeight()); 1836 int scaledWidth = (int) (scaleFactor * orig.getWidth()); 1837 int scaledHeight = (int) (scaleFactor * orig.getHeight()); 1838 Rect dst = new Rect(0, 0, scaledWidth, scaledHeight); 1839 1840 // center the image 1841 dst.offset((w - scaledWidth) / 2, (h - scaledHeight) / 2); 1842 1843 canvas.drawBitmap(orig, src, dst, null); 1844 mOutlineHelper.applyMediumExpensiveOutlineWithBlur(b, canvas, outlineColor, outlineColor, 1845 clipAlpha); 1846 canvas.setBitmap(null); 1847 1848 return b; 1849 } 1850 1851 void startDrag(CellLayout.CellInfo cellInfo) { 1852 View child = cellInfo.cell; 1853 1854 // Make sure the drag was started by a long press as opposed to a long click. 1855 if (!child.isInTouchMode()) { 1856 return; 1857 } 1858 1859 mDragInfo = cellInfo; 1860 child.setVisibility(INVISIBLE); 1861 CellLayout layout = (CellLayout) child.getParent().getParent(); 1862 layout.prepareChildForDrag(child); 1863 1864 child.clearFocus(); 1865 child.setPressed(false); 1866 1867 final Canvas canvas = new Canvas(); 1868 1869 // The outline is used to visualize where the item will land if dropped 1870 mDragOutline = createDragOutline(child, canvas, DRAG_BITMAP_PADDING); 1871 beginDragShared(child, this); 1872 } 1873 1874 public void beginDragShared(View child, DragSource source) { 1875 Resources r = getResources(); 1876 1877 // The drag bitmap follows the touch point around on the screen 1878 final Bitmap b = createDragBitmap(child, new Canvas(), DRAG_BITMAP_PADDING); 1879 1880 final int bmpWidth = b.getWidth(); 1881 final int bmpHeight = b.getHeight(); 1882 1883 mLauncher.getDragLayer().getLocationInDragLayer(child, mTempXY); 1884 int dragLayerX = 1885 Math.round(mTempXY[0] - (bmpWidth - child.getScaleX() * child.getWidth()) / 2); 1886 int dragLayerY = 1887 Math.round(mTempXY[1] - (bmpHeight - child.getScaleY() * bmpHeight) / 2 1888 - DRAG_BITMAP_PADDING / 2); 1889 1890 Point dragVisualizeOffset = null; 1891 Rect dragRect = null; 1892 if (child instanceof BubbleTextView || child instanceof PagedViewIcon) { 1893 int iconSize = r.getDimensionPixelSize(R.dimen.app_icon_size); 1894 int iconPaddingTop = r.getDimensionPixelSize(R.dimen.app_icon_padding_top); 1895 int top = child.getPaddingTop(); 1896 int left = (bmpWidth - iconSize) / 2; 1897 int right = left + iconSize; 1898 int bottom = top + iconSize; 1899 dragLayerY += top; 1900 // Note: The drag region is used to calculate drag layer offsets, but the 1901 // dragVisualizeOffset in addition to the dragRect (the size) to position the outline. 1902 dragVisualizeOffset = new Point(-DRAG_BITMAP_PADDING / 2, 1903 iconPaddingTop - DRAG_BITMAP_PADDING / 2); 1904 dragRect = new Rect(left, top, right, bottom); 1905 } else if (child instanceof FolderIcon) { 1906 int previewSize = r.getDimensionPixelSize(R.dimen.folder_preview_size); 1907 dragRect = new Rect(0, 0, child.getWidth(), previewSize); 1908 } 1909 1910 // Clear the pressed state if necessary 1911 if (child instanceof BubbleTextView) { 1912 BubbleTextView icon = (BubbleTextView) child; 1913 icon.clearPressedOrFocusedBackground(); 1914 } 1915 1916 mDragController.startDrag(b, dragLayerX, dragLayerY, source, child.getTag(), 1917 DragController.DRAG_ACTION_MOVE, dragVisualizeOffset, dragRect, child.getScaleX()); 1918 b.recycle(); 1919 1920 // Show the scrolling indicator when you pick up an item 1921 showScrollingIndicator(false); 1922 } 1923 1924 void addApplicationShortcut(ShortcutInfo info, CellLayout target, long container, int screen, 1925 int cellX, int cellY, boolean insertAtFirst, int intersectX, int intersectY) { 1926 View view = mLauncher.createShortcut(R.layout.application, target, (ShortcutInfo) info); 1927 1928 final int[] cellXY = new int[2]; 1929 target.findCellForSpanThatIntersects(cellXY, 1, 1, intersectX, intersectY); 1930 addInScreen(view, container, screen, cellXY[0], cellXY[1], 1, 1, insertAtFirst); 1931 LauncherModel.addOrMoveItemInDatabase(mLauncher, info, container, screen, cellXY[0], 1932 cellXY[1]); 1933 } 1934 1935 public boolean transitionStateShouldAllowDrop() { 1936 return ((!isSwitchingState() || mTransitionProgress > 0.5f) && mState != State.SMALL); 1937 } 1938 1939 /** 1940 * {@inheritDoc} 1941 */ 1942 public boolean acceptDrop(DragObject d) { 1943 // If it's an external drop (e.g. from All Apps), check if it should be accepted 1944 CellLayout dropTargetLayout = mDropToLayout; 1945 if (d.dragSource != this) { 1946 // Don't accept the drop if we're not over a screen at time of drop 1947 if (dropTargetLayout == null) { 1948 return false; 1949 } 1950 if (!transitionStateShouldAllowDrop()) return false; 1951 1952 mDragViewVisualCenter = getDragViewVisualCenter(d.x, d.y, d.xOffset, d.yOffset, 1953 d.dragView, mDragViewVisualCenter); 1954 1955 // We want the point to be mapped to the dragTarget. 1956 if (mLauncher.isHotseatLayout(dropTargetLayout)) { 1957 mapPointFromSelfToSibling(mLauncher.getHotseat(), mDragViewVisualCenter); 1958 } else { 1959 mapPointFromSelfToChild(dropTargetLayout, mDragViewVisualCenter, null); 1960 } 1961 1962 int spanX = 1; 1963 int spanY = 1; 1964 if (mDragInfo != null) { 1965 final CellLayout.CellInfo dragCellInfo = mDragInfo; 1966 spanX = dragCellInfo.spanX; 1967 spanY = dragCellInfo.spanY; 1968 } else { 1969 final ItemInfo dragInfo = (ItemInfo) d.dragInfo; 1970 spanX = dragInfo.spanX; 1971 spanY = dragInfo.spanY; 1972 } 1973 1974 int minSpanX = spanX; 1975 int minSpanY = spanY; 1976 if (d.dragInfo instanceof PendingAddWidgetInfo) { 1977 minSpanX = ((PendingAddWidgetInfo) d.dragInfo).minSpanX; 1978 minSpanY = ((PendingAddWidgetInfo) d.dragInfo).minSpanY; 1979 } 1980 1981 mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], 1982 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, dropTargetLayout, 1983 mTargetCell); 1984 float distance = dropTargetLayout.getDistanceFromCell(mDragViewVisualCenter[0], 1985 mDragViewVisualCenter[1], mTargetCell); 1986 if (willCreateUserFolder((ItemInfo) d.dragInfo, dropTargetLayout, 1987 mTargetCell, distance, true)) { 1988 return true; 1989 } 1990 if (willAddToExistingUserFolder((ItemInfo) d.dragInfo, dropTargetLayout, 1991 mTargetCell, distance)) { 1992 return true; 1993 } 1994 1995 int[] resultSpan = new int[2]; 1996 mTargetCell = dropTargetLayout.createArea((int) mDragViewVisualCenter[0], 1997 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, spanX, spanY, 1998 null, mTargetCell, resultSpan, CellLayout.MODE_ACCEPT_DROP); 1999 boolean foundCell = mTargetCell[0] >= 0 && mTargetCell[1] >= 0; 2000 2001 // Don't accept the drop if there's no room for the item 2002 if (!foundCell) { 2003 // Don't show the message if we are dropping on the AllApps button and the hotseat 2004 // is full 2005 boolean isHotseat = mLauncher.isHotseatLayout(dropTargetLayout); 2006 if (mTargetCell != null && isHotseat) { 2007 Hotseat hotseat = mLauncher.getHotseat(); 2008 if (hotseat.isAllAppsButtonRank( 2009 hotseat.getOrderInHotseat(mTargetCell[0], mTargetCell[1]))) { 2010 return false; 2011 } 2012 } 2013 2014 mLauncher.showOutOfSpaceMessage(isHotseat); 2015 return false; 2016 } 2017 } 2018 return true; 2019 } 2020 2021 boolean willCreateUserFolder(ItemInfo info, CellLayout target, int[] targetCell, float 2022 distance, boolean considerTimeout) { 2023 if (distance > mMaxDistanceForFolderCreation) return false; 2024 View dropOverView = target.getChildAt(targetCell[0], targetCell[1]); 2025 2026 if (dropOverView != null) { 2027 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) dropOverView.getLayoutParams(); 2028 if (lp.useTmpCoords && (lp.tmpCellX != lp.cellX || lp.tmpCellY != lp.tmpCellY)) { 2029 return false; 2030 } 2031 } 2032 2033 boolean hasntMoved = false; 2034 if (mDragInfo != null) { 2035 hasntMoved = dropOverView == mDragInfo.cell; 2036 } 2037 2038 if (dropOverView == null || hasntMoved || (considerTimeout && !mCreateUserFolderOnDrop)) { 2039 return false; 2040 } 2041 2042 boolean aboveShortcut = (dropOverView.getTag() instanceof ShortcutInfo); 2043 boolean willBecomeShortcut = 2044 (info.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPLICATION || 2045 info.itemType == LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT); 2046 2047 return (aboveShortcut && willBecomeShortcut); 2048 } 2049 2050 boolean willAddToExistingUserFolder(Object dragInfo, CellLayout target, int[] targetCell, 2051 float distance) { 2052 if (distance > mMaxDistanceForFolderCreation) return false; 2053 View dropOverView = target.getChildAt(targetCell[0], targetCell[1]); 2054 2055 if (dropOverView != null) { 2056 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) dropOverView.getLayoutParams(); 2057 if (lp.useTmpCoords && (lp.tmpCellX != lp.cellX || lp.tmpCellY != lp.tmpCellY)) { 2058 return false; 2059 } 2060 } 2061 2062 if (dropOverView instanceof FolderIcon) { 2063 FolderIcon fi = (FolderIcon) dropOverView; 2064 if (fi.acceptDrop(dragInfo)) { 2065 return true; 2066 } 2067 } 2068 return false; 2069 } 2070 2071 boolean createUserFolderIfNecessary(View newView, long container, CellLayout target, 2072 int[] targetCell, float distance, boolean external, DragView dragView, 2073 Runnable postAnimationRunnable) { 2074 if (distance > mMaxDistanceForFolderCreation) return false; 2075 View v = target.getChildAt(targetCell[0], targetCell[1]); 2076 2077 boolean hasntMoved = false; 2078 if (mDragInfo != null) { 2079 CellLayout cellParent = getParentCellLayoutForView(mDragInfo.cell); 2080 hasntMoved = (mDragInfo.cellX == targetCell[0] && 2081 mDragInfo.cellY == targetCell[1]) && (cellParent == target); 2082 } 2083 2084 if (v == null || hasntMoved || !mCreateUserFolderOnDrop) return false; 2085 mCreateUserFolderOnDrop = false; 2086 final int screen = (targetCell == null) ? mDragInfo.screen : indexOfChild(target); 2087 2088 boolean aboveShortcut = (v.getTag() instanceof ShortcutInfo); 2089 boolean willBecomeShortcut = (newView.getTag() instanceof ShortcutInfo); 2090 2091 if (aboveShortcut && willBecomeShortcut) { 2092 ShortcutInfo sourceInfo = (ShortcutInfo) newView.getTag(); 2093 ShortcutInfo destInfo = (ShortcutInfo) v.getTag(); 2094 // if the drag started here, we need to remove it from the workspace 2095 if (!external) { 2096 getParentCellLayoutForView(mDragInfo.cell).removeView(mDragInfo.cell); 2097 } 2098 2099 Rect folderLocation = new Rect(); 2100 float scale = mLauncher.getDragLayer().getDescendantRectRelativeToSelf(v, folderLocation); 2101 target.removeView(v); 2102 2103 FolderIcon fi = 2104 mLauncher.addFolder(target, container, screen, targetCell[0], targetCell[1]); 2105 destInfo.cellX = -1; 2106 destInfo.cellY = -1; 2107 sourceInfo.cellX = -1; 2108 sourceInfo.cellY = -1; 2109 2110 // If the dragView is null, we can't animate 2111 boolean animate = dragView != null; 2112 if (animate) { 2113 fi.performCreateAnimation(destInfo, v, sourceInfo, dragView, folderLocation, scale, 2114 postAnimationRunnable); 2115 } else { 2116 fi.addItem(destInfo); 2117 fi.addItem(sourceInfo); 2118 } 2119 return true; 2120 } 2121 return false; 2122 } 2123 2124 boolean addToExistingFolderIfNecessary(View newView, CellLayout target, int[] targetCell, 2125 float distance, DragObject d, boolean external) { 2126 if (distance > mMaxDistanceForFolderCreation) return false; 2127 2128 View dropOverView = target.getChildAt(targetCell[0], targetCell[1]); 2129 if (!mAddToExistingFolderOnDrop) return false; 2130 mAddToExistingFolderOnDrop = false; 2131 2132 if (dropOverView instanceof FolderIcon) { 2133 FolderIcon fi = (FolderIcon) dropOverView; 2134 if (fi.acceptDrop(d.dragInfo)) { 2135 fi.onDrop(d); 2136 2137 // if the drag started here, we need to remove it from the workspace 2138 if (!external) { 2139 getParentCellLayoutForView(mDragInfo.cell).removeView(mDragInfo.cell); 2140 } 2141 return true; 2142 } 2143 } 2144 return false; 2145 } 2146 2147 public void onDrop(final DragObject d) { 2148 mDragViewVisualCenter = getDragViewVisualCenter(d.x, d.y, d.xOffset, d.yOffset, d.dragView, 2149 mDragViewVisualCenter); 2150 2151 CellLayout dropTargetLayout = mDropToLayout; 2152 2153 // We want the point to be mapped to the dragTarget. 2154 if (dropTargetLayout != null) { 2155 if (mLauncher.isHotseatLayout(dropTargetLayout)) { 2156 mapPointFromSelfToSibling(mLauncher.getHotseat(), mDragViewVisualCenter); 2157 } else { 2158 mapPointFromSelfToChild(dropTargetLayout, mDragViewVisualCenter, null); 2159 } 2160 } 2161 2162 int snapScreen = -1; 2163 boolean resizeOnDrop = false; 2164 if (d.dragSource != this) { 2165 final int[] touchXY = new int[] { (int) mDragViewVisualCenter[0], 2166 (int) mDragViewVisualCenter[1] }; 2167 onDropExternal(touchXY, d.dragInfo, dropTargetLayout, false, d); 2168 } else if (mDragInfo != null) { 2169 final View cell = mDragInfo.cell; 2170 2171 Runnable resizeRunnable = null; 2172 if (dropTargetLayout != null) { 2173 // Move internally 2174 boolean hasMovedLayouts = (getParentCellLayoutForView(cell) != dropTargetLayout); 2175 boolean hasMovedIntoHotseat = mLauncher.isHotseatLayout(dropTargetLayout); 2176 long container = hasMovedIntoHotseat ? 2177 LauncherSettings.Favorites.CONTAINER_HOTSEAT : 2178 LauncherSettings.Favorites.CONTAINER_DESKTOP; 2179 int screen = (mTargetCell[0] < 0) ? 2180 mDragInfo.screen : indexOfChild(dropTargetLayout); 2181 int spanX = mDragInfo != null ? mDragInfo.spanX : 1; 2182 int spanY = mDragInfo != null ? mDragInfo.spanY : 1; 2183 // First we find the cell nearest to point at which the item is 2184 // dropped, without any consideration to whether there is an item there. 2185 2186 mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], (int) 2187 mDragViewVisualCenter[1], spanX, spanY, dropTargetLayout, mTargetCell); 2188 float distance = dropTargetLayout.getDistanceFromCell(mDragViewVisualCenter[0], 2189 mDragViewVisualCenter[1], mTargetCell); 2190 2191 // If the item being dropped is a shortcut and the nearest drop 2192 // cell also contains a shortcut, then create a folder with the two shortcuts. 2193 if (!mInScrollArea && createUserFolderIfNecessary(cell, container, 2194 dropTargetLayout, mTargetCell, distance, false, d.dragView, null)) { 2195 return; 2196 } 2197 2198 if (addToExistingFolderIfNecessary(cell, dropTargetLayout, mTargetCell, 2199 distance, d, false)) { 2200 return; 2201 } 2202 2203 // Aside from the special case where we're dropping a shortcut onto a shortcut, 2204 // we need to find the nearest cell location that is vacant 2205 ItemInfo item = (ItemInfo) d.dragInfo; 2206 int minSpanX = item.spanX; 2207 int minSpanY = item.spanY; 2208 if (item.minSpanX > 0 && item.minSpanY > 0) { 2209 minSpanX = item.minSpanX; 2210 minSpanY = item.minSpanY; 2211 } 2212 2213 int[] resultSpan = new int[2]; 2214 mTargetCell = dropTargetLayout.createArea((int) mDragViewVisualCenter[0], 2215 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, spanX, spanY, cell, 2216 mTargetCell, resultSpan, CellLayout.MODE_ON_DROP); 2217 2218 boolean foundCell = mTargetCell[0] >= 0 && mTargetCell[1] >= 0; 2219 if (foundCell && (resultSpan[0] != item.spanX || resultSpan[1] != item.spanY)) { 2220 resizeOnDrop = true; 2221 item.spanX = resultSpan[0]; 2222 item.spanY = resultSpan[1]; 2223 AppWidgetHostView awhv = (AppWidgetHostView) cell; 2224 AppWidgetResizeFrame.updateWidgetSizeRanges(awhv, mLauncher, resultSpan[0], 2225 resultSpan[1]); 2226 } 2227 2228 if (mCurrentPage != screen && !hasMovedIntoHotseat) { 2229 snapScreen = screen; 2230 snapToPage(screen); 2231 } 2232 2233 if (foundCell) { 2234 final ItemInfo info = (ItemInfo) cell.getTag(); 2235 if (hasMovedLayouts) { 2236 // Reparent the view 2237 getParentCellLayoutForView(cell).removeView(cell); 2238 addInScreen(cell, container, screen, mTargetCell[0], mTargetCell[1], 2239 info.spanX, info.spanY); 2240 } 2241 2242 // update the item's position after drop 2243 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) cell.getLayoutParams(); 2244 lp.cellX = lp.tmpCellX = mTargetCell[0]; 2245 lp.cellY = lp.tmpCellY = mTargetCell[1]; 2246 lp.cellHSpan = item.spanX; 2247 lp.cellVSpan = item.spanY; 2248 lp.isLockedToGrid = true; 2249 cell.setId(LauncherModel.getCellLayoutChildId(container, mDragInfo.screen, 2250 mTargetCell[0], mTargetCell[1], mDragInfo.spanX, mDragInfo.spanY)); 2251 2252 if (container != LauncherSettings.Favorites.CONTAINER_HOTSEAT && 2253 cell instanceof LauncherAppWidgetHostView) { 2254 final CellLayout cellLayout = dropTargetLayout; 2255 // We post this call so that the widget has a chance to be placed 2256 // in its final location 2257 2258 final LauncherAppWidgetHostView hostView = (LauncherAppWidgetHostView) cell; 2259 AppWidgetProviderInfo pinfo = hostView.getAppWidgetInfo(); 2260 if (pinfo != null && 2261 pinfo.resizeMode != AppWidgetProviderInfo.RESIZE_NONE) { 2262 final Runnable addResizeFrame = new Runnable() { 2263 public void run() { 2264 DragLayer dragLayer = mLauncher.getDragLayer(); 2265 dragLayer.addResizeFrame(info, hostView, cellLayout); 2266 } 2267 }; 2268 resizeRunnable = (new Runnable() { 2269 public void run() { 2270 if (!isPageMoving()) { 2271 addResizeFrame.run(); 2272 } else { 2273 mDelayedResizeRunnable = addResizeFrame; 2274 } 2275 } 2276 }); 2277 } 2278 } 2279 2280 LauncherModel.moveItemInDatabase(mLauncher, info, container, screen, lp.cellX, 2281 lp.cellY); 2282 } else { 2283 // If we can't find a drop location, we return the item to its original position 2284 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) cell.getLayoutParams(); 2285 mTargetCell[0] = lp.cellX; 2286 mTargetCell[1] = lp.cellY; 2287 CellLayout layout = (CellLayout) cell.getParent().getParent(); 2288 layout.markCellsAsOccupiedForView(cell); 2289 } 2290 } 2291 2292 final CellLayout parent = (CellLayout) cell.getParent().getParent(); 2293 final Runnable finalResizeRunnable = resizeRunnable; 2294 // Prepare it to be animated into its new position 2295 // This must be called after the view has been re-parented 2296 final Runnable onCompleteRunnable = new Runnable() { 2297 @Override 2298 public void run() { 2299 mAnimatingViewIntoPlace = false; 2300 updateChildrenLayersEnabled(false); 2301 if (finalResizeRunnable != null) { 2302 finalResizeRunnable.run(); 2303 } 2304 } 2305 }; 2306 mAnimatingViewIntoPlace = true; 2307 if (d.dragView.hasDrawn()) { 2308 final ItemInfo info = (ItemInfo) cell.getTag(); 2309 if (info.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET) { 2310 int animationType = resizeOnDrop ? ANIMATE_INTO_POSITION_AND_RESIZE : 2311 ANIMATE_INTO_POSITION_AND_DISAPPEAR; 2312 animateWidgetDrop(info, parent, d.dragView, 2313 onCompleteRunnable, animationType, cell, false); 2314 } else { 2315 int duration = snapScreen < 0 ? -1 : ADJACENT_SCREEN_DROP_DURATION; 2316 mLauncher.getDragLayer().animateViewIntoPosition(d.dragView, cell, duration, 2317 onCompleteRunnable, this); 2318 } 2319 } else { 2320 d.deferDragViewCleanupPostAnimation = false; 2321 cell.setVisibility(VISIBLE); 2322 } 2323 parent.onDropChild(cell); 2324 } 2325 } 2326 2327 public void setFinalScrollForPageChange(int screen) { 2328 if (screen >= 0) { 2329 mSavedScrollX = getScrollX(); 2330 CellLayout cl = (CellLayout) getChildAt(screen); 2331 mSavedTranslationX = cl.getTranslationX(); 2332 mSavedRotationY = cl.getRotationY(); 2333 final int newX = getChildOffset(screen) - getRelativeChildOffset(screen); 2334 setScrollX(newX); 2335 cl.setTranslationX(0f); 2336 cl.setRotationY(0f); 2337 } 2338 } 2339 2340 public void resetFinalScrollForPageChange(int screen) { 2341 if (screen >= 0) { 2342 CellLayout cl = (CellLayout) getChildAt(screen); 2343 setScrollX(mSavedScrollX); 2344 cl.setTranslationX(mSavedTranslationX); 2345 cl.setRotationY(mSavedRotationY); 2346 } 2347 } 2348 2349 public void getViewLocationRelativeToSelf(View v, int[] location) { 2350 getLocationInWindow(location); 2351 int x = location[0]; 2352 int y = location[1]; 2353 2354 v.getLocationInWindow(location); 2355 int vX = location[0]; 2356 int vY = location[1]; 2357 2358 location[0] = vX - x; 2359 location[1] = vY - y; 2360 } 2361 2362 public void onDragEnter(DragObject d) { 2363 mDragEnforcer.onDragEnter(); 2364 mCreateUserFolderOnDrop = false; 2365 mAddToExistingFolderOnDrop = false; 2366 2367 mDropToLayout = null; 2368 CellLayout layout = getCurrentDropLayout(); 2369 setCurrentDropLayout(layout); 2370 setCurrentDragOverlappingLayout(layout); 2371 2372 // Because we don't have space in the Phone UI (the CellLayouts run to the edge) we 2373 // don't need to show the outlines 2374 if (LauncherApplication.isScreenLarge()) { 2375 showOutlines(); 2376 } 2377 } 2378 2379 static Rect getCellLayoutMetrics(Launcher launcher, int orientation) { 2380 Resources res = launcher.getResources(); 2381 Display display = launcher.getWindowManager().getDefaultDisplay(); 2382 Point smallestSize = new Point(); 2383 Point largestSize = new Point(); 2384 display.getCurrentSizeRange(smallestSize, largestSize); 2385 if (orientation == CellLayout.LANDSCAPE) { 2386 if (mLandscapeCellLayoutMetrics == null) { 2387 int paddingLeft = res.getDimensionPixelSize(R.dimen.workspace_left_padding_land); 2388 int paddingRight = res.getDimensionPixelSize(R.dimen.workspace_right_padding_land); 2389 int paddingTop = res.getDimensionPixelSize(R.dimen.workspace_top_padding_land); 2390 int paddingBottom = res.getDimensionPixelSize(R.dimen.workspace_bottom_padding_land); 2391 int width = largestSize.x - paddingLeft - paddingRight; 2392 int height = smallestSize.y - paddingTop - paddingBottom; 2393 mLandscapeCellLayoutMetrics = new Rect(); 2394 CellLayout.getMetrics(mLandscapeCellLayoutMetrics, res, 2395 width, height, LauncherModel.getCellCountX(), LauncherModel.getCellCountY(), 2396 orientation); 2397 } 2398 return mLandscapeCellLayoutMetrics; 2399 } else if (orientation == CellLayout.PORTRAIT) { 2400 if (mPortraitCellLayoutMetrics == null) { 2401 int paddingLeft = res.getDimensionPixelSize(R.dimen.workspace_left_padding_land); 2402 int paddingRight = res.getDimensionPixelSize(R.dimen.workspace_right_padding_land); 2403 int paddingTop = res.getDimensionPixelSize(R.dimen.workspace_top_padding_land); 2404 int paddingBottom = res.getDimensionPixelSize(R.dimen.workspace_bottom_padding_land); 2405 int width = smallestSize.x - paddingLeft - paddingRight; 2406 int height = largestSize.y - paddingTop - paddingBottom; 2407 mPortraitCellLayoutMetrics = new Rect(); 2408 CellLayout.getMetrics(mPortraitCellLayoutMetrics, res, 2409 width, height, LauncherModel.getCellCountX(), LauncherModel.getCellCountY(), 2410 orientation); 2411 } 2412 return mPortraitCellLayoutMetrics; 2413 } 2414 return null; 2415 } 2416 2417 public void onDragExit(DragObject d) { 2418 mDragEnforcer.onDragExit(); 2419 2420 // Here we store the final page that will be dropped to, if the workspace in fact 2421 // receives the drop 2422 if (mInScrollArea) { 2423 if (isPageMoving()) { 2424 // If the user drops while the page is scrolling, we should use that page as the 2425 // destination instead of the page that is being hovered over. 2426 mDropToLayout = (CellLayout) getPageAt(getNextPage()); 2427 } else { 2428 mDropToLayout = mDragOverlappingLayout; 2429 } 2430 } else { 2431 mDropToLayout = mDragTargetLayout; 2432 } 2433 2434 if (mDragMode == DRAG_MODE_CREATE_FOLDER) { 2435 mCreateUserFolderOnDrop = true; 2436 } else if (mDragMode == DRAG_MODE_ADD_TO_FOLDER) { 2437 mAddToExistingFolderOnDrop = true; 2438 } 2439 2440 // Reset the scroll area and previous drag target 2441 onResetScrollArea(); 2442 setCurrentDropLayout(null); 2443 setCurrentDragOverlappingLayout(null); 2444 2445 mSpringLoadedDragController.cancel(); 2446 2447 if (!mIsPageMoving) { 2448 hideOutlines(); 2449 } 2450 } 2451 2452 void setCurrentDropLayout(CellLayout layout) { 2453 if (mDragTargetLayout != null) { 2454 mDragTargetLayout.revertTempState(); 2455 mDragTargetLayout.onDragExit(); 2456 } 2457 mDragTargetLayout = layout; 2458 if (mDragTargetLayout != null) { 2459 mDragTargetLayout.onDragEnter(); 2460 } 2461 cleanupReorder(true); 2462 cleanupFolderCreation(); 2463 setCurrentDropOverCell(-1, -1); 2464 } 2465 2466 void setCurrentDragOverlappingLayout(CellLayout layout) { 2467 if (mDragOverlappingLayout != null) { 2468 mDragOverlappingLayout.setIsDragOverlapping(false); 2469 } 2470 mDragOverlappingLayout = layout; 2471 if (mDragOverlappingLayout != null) { 2472 mDragOverlappingLayout.setIsDragOverlapping(true); 2473 } 2474 invalidate(); 2475 } 2476 2477 void setCurrentDropOverCell(int x, int y) { 2478 if (x != mDragOverX || y != mDragOverY) { 2479 mDragOverX = x; 2480 mDragOverY = y; 2481 setDragMode(DRAG_MODE_NONE); 2482 } 2483 } 2484 2485 void setDragMode(int dragMode) { 2486 if (dragMode != mDragMode) { 2487 if (dragMode == DRAG_MODE_NONE) { 2488 cleanupAddToFolder(); 2489 // We don't want to cancel the re-order alarm every time the target cell changes 2490 // as this feels to slow / unresponsive. 2491 cleanupReorder(false); 2492 cleanupFolderCreation(); 2493 } else if (dragMode == DRAG_MODE_ADD_TO_FOLDER) { 2494 cleanupReorder(true); 2495 cleanupFolderCreation(); 2496 } else if (dragMode == DRAG_MODE_CREATE_FOLDER) { 2497 cleanupAddToFolder(); 2498 cleanupReorder(true); 2499 } else if (dragMode == DRAG_MODE_REORDER) { 2500 cleanupAddToFolder(); 2501 cleanupFolderCreation(); 2502 } 2503 mDragMode = dragMode; 2504 } 2505 } 2506 2507 private void cleanupFolderCreation() { 2508 if (mDragFolderRingAnimator != null) { 2509 mDragFolderRingAnimator.animateToNaturalState(); 2510 } 2511 mFolderCreationAlarm.cancelAlarm(); 2512 } 2513 2514 private void cleanupAddToFolder() { 2515 if (mDragOverFolderIcon != null) { 2516 mDragOverFolderIcon.onDragExit(null); 2517 mDragOverFolderIcon = null; 2518 } 2519 } 2520 2521 private void cleanupReorder(boolean cancelAlarm) { 2522 // Any pending reorders are canceled 2523 if (cancelAlarm) { 2524 mReorderAlarm.cancelAlarm(); 2525 } 2526 mLastReorderX = -1; 2527 mLastReorderY = -1; 2528 } 2529 2530 public DropTarget getDropTargetDelegate(DragObject d) { 2531 return null; 2532 } 2533 2534 /* 2535 * 2536 * Convert the 2D coordinate xy from the parent View's coordinate space to this CellLayout's 2537 * coordinate space. The argument xy is modified with the return result. 2538 * 2539 */ 2540 void mapPointFromSelfToChild(View v, float[] xy) { 2541 mapPointFromSelfToChild(v, xy, null); 2542 } 2543 2544 /* 2545 * 2546 * Convert the 2D coordinate xy from the parent View's coordinate space to this CellLayout's 2547 * coordinate space. The argument xy is modified with the return result. 2548 * 2549 * if cachedInverseMatrix is not null, this method will just use that matrix instead of 2550 * computing it itself; we use this to avoid redundant matrix inversions in 2551 * findMatchingPageForDragOver 2552 * 2553 */ 2554 void mapPointFromSelfToChild(View v, float[] xy, Matrix cachedInverseMatrix) { 2555 if (cachedInverseMatrix == null) { 2556 v.getMatrix().invert(mTempInverseMatrix); 2557 cachedInverseMatrix = mTempInverseMatrix; 2558 } 2559 int scrollX = getScrollX(); 2560 if (mNextPage != INVALID_PAGE) { 2561 scrollX = mScroller.getFinalX(); 2562 } 2563 xy[0] = xy[0] + scrollX - v.getLeft(); 2564 xy[1] = xy[1] + getScrollY() - v.getTop(); 2565 cachedInverseMatrix.mapPoints(xy); 2566 } 2567 2568 /* 2569 * Maps a point from the Workspace's coordinate system to another sibling view's. (Workspace 2570 * covers the full screen) 2571 */ 2572 void mapPointFromSelfToSibling(View v, float[] xy) { 2573 xy[0] = xy[0] - v.getLeft(); 2574 xy[1] = xy[1] - v.getTop(); 2575 } 2576 2577 void mapPointFromSelfToHotseatLayout(Hotseat hotseat, float[] xy) { 2578 xy[0] = xy[0] - hotseat.getLeft() - hotseat.getLayout().getLeft(); 2579 xy[1] = xy[1] - hotseat.getTop() - hotseat.getLayout().getTop(); 2580 } 2581 2582 /* 2583 * 2584 * Convert the 2D coordinate xy from this CellLayout's coordinate space to 2585 * the parent View's coordinate space. The argument xy is modified with the return result. 2586 * 2587 */ 2588 void mapPointFromChildToSelf(View v, float[] xy) { 2589 v.getMatrix().mapPoints(xy); 2590 int scrollX = getScrollX(); 2591 if (mNextPage != INVALID_PAGE) { 2592 scrollX = mScroller.getFinalX(); 2593 } 2594 xy[0] -= (scrollX - v.getLeft()); 2595 xy[1] -= (getScrollY() - v.getTop()); 2596 } 2597 2598 static private float squaredDistance(float[] point1, float[] point2) { 2599 float distanceX = point1[0] - point2[0]; 2600 float distanceY = point2[1] - point2[1]; 2601 return distanceX * distanceX + distanceY * distanceY; 2602 } 2603 2604 /* 2605 * 2606 * Returns true if the passed CellLayout cl overlaps with dragView 2607 * 2608 */ 2609 boolean overlaps(CellLayout cl, DragView dragView, 2610 int dragViewX, int dragViewY, Matrix cachedInverseMatrix) { 2611 // Transform the coordinates of the item being dragged to the CellLayout's coordinates 2612 final float[] draggedItemTopLeft = mTempDragCoordinates; 2613 draggedItemTopLeft[0] = dragViewX; 2614 draggedItemTopLeft[1] = dragViewY; 2615 final float[] draggedItemBottomRight = mTempDragBottomRightCoordinates; 2616 draggedItemBottomRight[0] = draggedItemTopLeft[0] + dragView.getDragRegionWidth(); 2617 draggedItemBottomRight[1] = draggedItemTopLeft[1] + dragView.getDragRegionHeight(); 2618 2619 // Transform the dragged item's top left coordinates 2620 // to the CellLayout's local coordinates 2621 mapPointFromSelfToChild(cl, draggedItemTopLeft, cachedInverseMatrix); 2622 float overlapRegionLeft = Math.max(0f, draggedItemTopLeft[0]); 2623 float overlapRegionTop = Math.max(0f, draggedItemTopLeft[1]); 2624 2625 if (overlapRegionLeft <= cl.getWidth() && overlapRegionTop >= 0) { 2626 // Transform the dragged item's bottom right coordinates 2627 // to the CellLayout's local coordinates 2628 mapPointFromSelfToChild(cl, draggedItemBottomRight, cachedInverseMatrix); 2629 float overlapRegionRight = Math.min(cl.getWidth(), draggedItemBottomRight[0]); 2630 float overlapRegionBottom = Math.min(cl.getHeight(), draggedItemBottomRight[1]); 2631 2632 if (overlapRegionRight >= 0 && overlapRegionBottom <= cl.getHeight()) { 2633 float overlap = (overlapRegionRight - overlapRegionLeft) * 2634 (overlapRegionBottom - overlapRegionTop); 2635 if (overlap > 0) { 2636 return true; 2637 } 2638 } 2639 } 2640 return false; 2641 } 2642 2643 /* 2644 * 2645 * This method returns the CellLayout that is currently being dragged to. In order to drag 2646 * to a CellLayout, either the touch point must be directly over the CellLayout, or as a second 2647 * strategy, we see if the dragView is overlapping any CellLayout and choose the closest one 2648 * 2649 * Return null if no CellLayout is currently being dragged over 2650 * 2651 */ 2652 private CellLayout findMatchingPageForDragOver( 2653 DragView dragView, float originX, float originY, boolean exact) { 2654 // We loop through all the screens (ie CellLayouts) and see which ones overlap 2655 // with the item being dragged and then choose the one that's closest to the touch point 2656 final int screenCount = getChildCount(); 2657 CellLayout bestMatchingScreen = null; 2658 float smallestDistSoFar = Float.MAX_VALUE; 2659 2660 for (int i = 0; i < screenCount; i++) { 2661 CellLayout cl = (CellLayout) getChildAt(i); 2662 2663 final float[] touchXy = {originX, originY}; 2664 // Transform the touch coordinates to the CellLayout's local coordinates 2665 // If the touch point is within the bounds of the cell layout, we can return immediately 2666 cl.getMatrix().invert(mTempInverseMatrix); 2667 mapPointFromSelfToChild(cl, touchXy, mTempInverseMatrix); 2668 2669 if (touchXy[0] >= 0 && touchXy[0] <= cl.getWidth() && 2670 touchXy[1] >= 0 && touchXy[1] <= cl.getHeight()) { 2671 return cl; 2672 } 2673 2674 if (!exact) { 2675 // Get the center of the cell layout in screen coordinates 2676 final float[] cellLayoutCenter = mTempCellLayoutCenterCoordinates; 2677 cellLayoutCenter[0] = cl.getWidth()/2; 2678 cellLayoutCenter[1] = cl.getHeight()/2; 2679 mapPointFromChildToSelf(cl, cellLayoutCenter); 2680 2681 touchXy[0] = originX; 2682 touchXy[1] = originY; 2683 2684 // Calculate the distance between the center of the CellLayout 2685 // and the touch point 2686 float dist = squaredDistance(touchXy, cellLayoutCenter); 2687 2688 if (dist < smallestDistSoFar) { 2689 smallestDistSoFar = dist; 2690 bestMatchingScreen = cl; 2691 } 2692 } 2693 } 2694 return bestMatchingScreen; 2695 } 2696 2697 // This is used to compute the visual center of the dragView. This point is then 2698 // used to visualize drop locations and determine where to drop an item. The idea is that 2699 // the visual center represents the user's interpretation of where the item is, and hence 2700 // is the appropriate point to use when determining drop location. 2701 private float[] getDragViewVisualCenter(int x, int y, int xOffset, int yOffset, 2702 DragView dragView, float[] recycle) { 2703 float res[]; 2704 if (recycle == null) { 2705 res = new float[2]; 2706 } else { 2707 res = recycle; 2708 } 2709 2710 // First off, the drag view has been shifted in a way that is not represented in the 2711 // x and y values or the x/yOffsets. Here we account for that shift. 2712 x += getResources().getDimensionPixelSize(R.dimen.dragViewOffsetX); 2713 y += getResources().getDimensionPixelSize(R.dimen.dragViewOffsetY); 2714 2715 // These represent the visual top and left of drag view if a dragRect was provided. 2716 // If a dragRect was not provided, then they correspond to the actual view left and 2717 // top, as the dragRect is in that case taken to be the entire dragView. 2718 // R.dimen.dragViewOffsetY. 2719 int left = x - xOffset; 2720 int top = y - yOffset; 2721 2722 // In order to find the visual center, we shift by half the dragRect 2723 res[0] = left + dragView.getDragRegion().width() / 2; 2724 res[1] = top + dragView.getDragRegion().height() / 2; 2725 2726 return res; 2727 } 2728 2729 private boolean isDragWidget(DragObject d) { 2730 return (d.dragInfo instanceof LauncherAppWidgetInfo || 2731 d.dragInfo instanceof PendingAddWidgetInfo); 2732 } 2733 private boolean isExternalDragWidget(DragObject d) { 2734 return d.dragSource != this && isDragWidget(d); 2735 } 2736 2737 public void onDragOver(DragObject d) { 2738 // Skip drag over events while we are dragging over side pages 2739 if (mInScrollArea || mIsSwitchingState || mState == State.SMALL) return; 2740 2741 Rect r = new Rect(); 2742 CellLayout layout = null; 2743 ItemInfo item = (ItemInfo) d.dragInfo; 2744 2745 // Ensure that we have proper spans for the item that we are dropping 2746 if (item.spanX < 0 || item.spanY < 0) throw new RuntimeException("Improper spans found"); 2747 mDragViewVisualCenter = getDragViewVisualCenter(d.x, d.y, d.xOffset, d.yOffset, 2748 d.dragView, mDragViewVisualCenter); 2749 2750 final View child = (mDragInfo == null) ? null : mDragInfo.cell; 2751 // Identify whether we have dragged over a side page 2752 if (isSmall()) { 2753 if (mLauncher.getHotseat() != null && !isExternalDragWidget(d)) { 2754 mLauncher.getHotseat().getHitRect(r); 2755 if (r.contains(d.x, d.y)) { 2756 layout = mLauncher.getHotseat().getLayout(); 2757 } 2758 } 2759 if (layout == null) { 2760 layout = findMatchingPageForDragOver(d.dragView, d.x, d.y, false); 2761 } 2762 if (layout != mDragTargetLayout) { 2763 2764 setCurrentDropLayout(layout); 2765 setCurrentDragOverlappingLayout(layout); 2766 2767 boolean isInSpringLoadedMode = (mState == State.SPRING_LOADED); 2768 if (isInSpringLoadedMode) { 2769 if (mLauncher.isHotseatLayout(layout)) { 2770 mSpringLoadedDragController.cancel(); 2771 } else { 2772 mSpringLoadedDragController.setAlarm(mDragTargetLayout); 2773 } 2774 } 2775 } 2776 } else { 2777 // Test to see if we are over the hotseat otherwise just use the current page 2778 if (mLauncher.getHotseat() != null && !isDragWidget(d)) { 2779 mLauncher.getHotseat().getHitRect(r); 2780 if (r.contains(d.x, d.y)) { 2781 layout = mLauncher.getHotseat().getLayout(); 2782 } 2783 } 2784 if (layout == null) { 2785 layout = getCurrentDropLayout(); 2786 } 2787 if (layout != mDragTargetLayout) { 2788 setCurrentDropLayout(layout); 2789 setCurrentDragOverlappingLayout(layout); 2790 } 2791 } 2792 2793 // Handle the drag over 2794 if (mDragTargetLayout != null) { 2795 // We want the point to be mapped to the dragTarget. 2796 if (mLauncher.isHotseatLayout(mDragTargetLayout)) { 2797 mapPointFromSelfToHotseatLayout(mLauncher.getHotseat(), mDragViewVisualCenter); 2798 } else { 2799 mapPointFromSelfToChild(mDragTargetLayout, mDragViewVisualCenter, null); 2800 } 2801 2802 ItemInfo info = (ItemInfo) d.dragInfo; 2803 2804 mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], 2805 (int) mDragViewVisualCenter[1], item.spanX, item.spanY, 2806 mDragTargetLayout, mTargetCell); 2807 2808 setCurrentDropOverCell(mTargetCell[0], mTargetCell[1]); 2809 2810 float targetCellDistance = mDragTargetLayout.getDistanceFromCell( 2811 mDragViewVisualCenter[0], mDragViewVisualCenter[1], mTargetCell); 2812 2813 final View dragOverView = mDragTargetLayout.getChildAt(mTargetCell[0], 2814 mTargetCell[1]); 2815 2816 manageFolderFeedback(info, mDragTargetLayout, mTargetCell, 2817 targetCellDistance, dragOverView); 2818 2819 int minSpanX = item.spanX; 2820 int minSpanY = item.spanY; 2821 if (item.minSpanX > 0 && item.minSpanY > 0) { 2822 minSpanX = item.minSpanX; 2823 minSpanY = item.minSpanY; 2824 } 2825 2826 boolean nearestDropOccupied = mDragTargetLayout.isNearestDropLocationOccupied((int) 2827 mDragViewVisualCenter[0], (int) mDragViewVisualCenter[1], item.spanX, 2828 item.spanY, child, mTargetCell); 2829 2830 if (!nearestDropOccupied) { 2831 mDragTargetLayout.visualizeDropLocation(child, mDragOutline, 2832 (int) mDragViewVisualCenter[0], (int) mDragViewVisualCenter[1], 2833 mTargetCell[0], mTargetCell[1], item.spanX, item.spanY, false, 2834 d.dragView.getDragVisualizeOffset(), d.dragView.getDragRegion()); 2835 } else if ((mDragMode == DRAG_MODE_NONE || mDragMode == DRAG_MODE_REORDER) 2836 && !mReorderAlarm.alarmPending() && (mLastReorderX != mTargetCell[0] || 2837 mLastReorderY != mTargetCell[1])) { 2838 2839 // Otherwise, if we aren't adding to or creating a folder and there's no pending 2840 // reorder, then we schedule a reorder 2841 ReorderAlarmListener listener = new ReorderAlarmListener(mDragViewVisualCenter, 2842 minSpanX, minSpanY, item.spanX, item.spanY, d.dragView, child); 2843 mReorderAlarm.setOnAlarmListener(listener); 2844 mReorderAlarm.setAlarm(REORDER_TIMEOUT); 2845 } 2846 2847 if (mDragMode == DRAG_MODE_CREATE_FOLDER || mDragMode == DRAG_MODE_ADD_TO_FOLDER || 2848 !nearestDropOccupied) { 2849 if (mDragTargetLayout != null) { 2850 mDragTargetLayout.revertTempState(); 2851 } 2852 } 2853 } 2854 } 2855 2856 private void manageFolderFeedback(ItemInfo info, CellLayout targetLayout, 2857 int[] targetCell, float distance, View dragOverView) { 2858 boolean userFolderPending = willCreateUserFolder(info, targetLayout, targetCell, distance, 2859 false); 2860 2861 if (mDragMode == DRAG_MODE_NONE && userFolderPending && 2862 !mFolderCreationAlarm.alarmPending()) { 2863 mFolderCreationAlarm.setOnAlarmListener(new 2864 FolderCreationAlarmListener(targetLayout, targetCell[0], targetCell[1])); 2865 mFolderCreationAlarm.setAlarm(FOLDER_CREATION_TIMEOUT); 2866 return; 2867 } 2868 2869 boolean willAddToFolder = 2870 willAddToExistingUserFolder(info, targetLayout, targetCell, distance); 2871 2872 if (willAddToFolder && mDragMode == DRAG_MODE_NONE) { 2873 mDragOverFolderIcon = ((FolderIcon) dragOverView); 2874 mDragOverFolderIcon.onDragEnter(info); 2875 if (targetLayout != null) { 2876 targetLayout.clearDragOutlines(); 2877 } 2878 setDragMode(DRAG_MODE_ADD_TO_FOLDER); 2879 return; 2880 } 2881 2882 if (mDragMode == DRAG_MODE_ADD_TO_FOLDER && !willAddToFolder) { 2883 setDragMode(DRAG_MODE_NONE); 2884 } 2885 if (mDragMode == DRAG_MODE_CREATE_FOLDER && !userFolderPending) { 2886 setDragMode(DRAG_MODE_NONE); 2887 } 2888 2889 return; 2890 } 2891 2892 class FolderCreationAlarmListener implements OnAlarmListener { 2893 CellLayout layout; 2894 int cellX; 2895 int cellY; 2896 2897 public FolderCreationAlarmListener(CellLayout layout, int cellX, int cellY) { 2898 this.layout = layout; 2899 this.cellX = cellX; 2900 this.cellY = cellY; 2901 } 2902 2903 public void onAlarm(Alarm alarm) { 2904 if (mDragFolderRingAnimator == null) { 2905 mDragFolderRingAnimator = new FolderRingAnimator(mLauncher, null); 2906 } 2907 mDragFolderRingAnimator.setCell(cellX, cellY); 2908 mDragFolderRingAnimator.setCellLayout(layout); 2909 mDragFolderRingAnimator.animateToAcceptState(); 2910 layout.showFolderAccept(mDragFolderRingAnimator); 2911 layout.clearDragOutlines(); 2912 setDragMode(DRAG_MODE_CREATE_FOLDER); 2913 } 2914 } 2915 2916 class ReorderAlarmListener implements OnAlarmListener { 2917 float[] dragViewCenter; 2918 int minSpanX, minSpanY, spanX, spanY; 2919 DragView dragView; 2920 View child; 2921 2922 public ReorderAlarmListener(float[] dragViewCenter, int minSpanX, int minSpanY, int spanX, 2923 int spanY, DragView dragView, View child) { 2924 this.dragViewCenter = dragViewCenter; 2925 this.minSpanX = minSpanX; 2926 this.minSpanY = minSpanY; 2927 this.spanX = spanX; 2928 this.spanY = spanY; 2929 this.child = child; 2930 this.dragView = dragView; 2931 } 2932 2933 public void onAlarm(Alarm alarm) { 2934 int[] resultSpan = new int[2]; 2935 mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], 2936 (int) mDragViewVisualCenter[1], spanX, spanY, mDragTargetLayout, mTargetCell); 2937 mLastReorderX = mTargetCell[0]; 2938 mLastReorderY = mTargetCell[1]; 2939 2940 mTargetCell = mDragTargetLayout.createArea((int) mDragViewVisualCenter[0], 2941 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, spanX, spanY, 2942 child, mTargetCell, resultSpan, CellLayout.MODE_DRAG_OVER); 2943 2944 if (mTargetCell[0] < 0 || mTargetCell[1] < 0) { 2945 mDragTargetLayout.revertTempState(); 2946 } else { 2947 setDragMode(DRAG_MODE_REORDER); 2948 } 2949 2950 boolean resize = resultSpan[0] != spanX || resultSpan[1] != spanY; 2951 mDragTargetLayout.visualizeDropLocation(child, mDragOutline, 2952 (int) mDragViewVisualCenter[0], (int) mDragViewVisualCenter[1], 2953 mTargetCell[0], mTargetCell[1], resultSpan[0], resultSpan[1], resize, 2954 dragView.getDragVisualizeOffset(), dragView.getDragRegion()); 2955 } 2956 } 2957 2958 @Override 2959 public void getHitRect(Rect outRect) { 2960 // We want the workspace to have the whole area of the display (it will find the correct 2961 // cell layout to drop to in the existing drag/drop logic. 2962 outRect.set(0, 0, mDisplaySize.x, mDisplaySize.y); 2963 } 2964 2965 /** 2966 * Add the item specified by dragInfo to the given layout. 2967 * @return true if successful 2968 */ 2969 public boolean addExternalItemToScreen(ItemInfo dragInfo, CellLayout layout) { 2970 if (layout.findCellForSpan(mTempEstimate, dragInfo.spanX, dragInfo.spanY)) { 2971 onDropExternal(dragInfo.dropPos, (ItemInfo) dragInfo, (CellLayout) layout, false); 2972 return true; 2973 } 2974 mLauncher.showOutOfSpaceMessage(mLauncher.isHotseatLayout(layout)); 2975 return false; 2976 } 2977 2978 private void onDropExternal(int[] touchXY, Object dragInfo, 2979 CellLayout cellLayout, boolean insertAtFirst) { 2980 onDropExternal(touchXY, dragInfo, cellLayout, insertAtFirst, null); 2981 } 2982 2983 /** 2984 * Drop an item that didn't originate on one of the workspace screens. 2985 * It may have come from Launcher (e.g. from all apps or customize), or it may have 2986 * come from another app altogether. 2987 * 2988 * NOTE: This can also be called when we are outside of a drag event, when we want 2989 * to add an item to one of the workspace screens. 2990 */ 2991 private void onDropExternal(final int[] touchXY, final Object dragInfo, 2992 final CellLayout cellLayout, boolean insertAtFirst, DragObject d) { 2993 final Runnable exitSpringLoadedRunnable = new Runnable() { 2994 @Override 2995 public void run() { 2996 mLauncher.exitSpringLoadedDragModeDelayed(true, false, null); 2997 } 2998 }; 2999 3000 ItemInfo info = (ItemInfo) dragInfo; 3001 int spanX = info.spanX; 3002 int spanY = info.spanY; 3003 if (mDragInfo != null) { 3004 spanX = mDragInfo.spanX; 3005 spanY = mDragInfo.spanY; 3006 } 3007 3008 final long container = mLauncher.isHotseatLayout(cellLayout) ? 3009 LauncherSettings.Favorites.CONTAINER_HOTSEAT : 3010 LauncherSettings.Favorites.CONTAINER_DESKTOP; 3011 final int screen = indexOfChild(cellLayout); 3012 if (!mLauncher.isHotseatLayout(cellLayout) && screen != mCurrentPage 3013 && mState != State.SPRING_LOADED) { 3014 snapToPage(screen); 3015 } 3016 3017 if (info instanceof PendingAddItemInfo) { 3018 final PendingAddItemInfo pendingInfo = (PendingAddItemInfo) dragInfo; 3019 3020 boolean findNearestVacantCell = true; 3021 if (pendingInfo.itemType == LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT) { 3022 mTargetCell = findNearestArea((int) touchXY[0], (int) touchXY[1], spanX, spanY, 3023 cellLayout, mTargetCell); 3024 float distance = cellLayout.getDistanceFromCell(mDragViewVisualCenter[0], 3025 mDragViewVisualCenter[1], mTargetCell); 3026 if (willCreateUserFolder((ItemInfo) d.dragInfo, cellLayout, mTargetCell, 3027 distance, true) || willAddToExistingUserFolder((ItemInfo) d.dragInfo, 3028 cellLayout, mTargetCell, distance)) { 3029 findNearestVacantCell = false; 3030 } 3031 } 3032 3033 final ItemInfo item = (ItemInfo) d.dragInfo; 3034 if (findNearestVacantCell) { 3035 int minSpanX = item.spanX; 3036 int minSpanY = item.spanY; 3037 if (item.minSpanX > 0 && item.minSpanY > 0) { 3038 minSpanX = item.minSpanX; 3039 minSpanY = item.minSpanY; 3040 } 3041 int[] resultSpan = new int[2]; 3042 mTargetCell = cellLayout.createArea((int) mDragViewVisualCenter[0], 3043 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, info.spanX, info.spanY, 3044 null, mTargetCell, resultSpan, CellLayout.MODE_ON_DROP_EXTERNAL); 3045 item.spanX = resultSpan[0]; 3046 item.spanY = resultSpan[1]; 3047 } 3048 3049 Runnable onAnimationCompleteRunnable = new Runnable() { 3050 @Override 3051 public void run() { 3052 // When dragging and dropping from customization tray, we deal with creating 3053 // widgets/shortcuts/folders in a slightly different way 3054 switch (pendingInfo.itemType) { 3055 case LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET: 3056 int span[] = new int[2]; 3057 span[0] = item.spanX; 3058 span[1] = item.spanY; 3059 mLauncher.addAppWidgetFromDrop((PendingAddWidgetInfo) pendingInfo, 3060 container, screen, mTargetCell, span, null); 3061 break; 3062 case LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT: 3063 mLauncher.processShortcutFromDrop(pendingInfo.componentName, 3064 container, screen, mTargetCell, null); 3065 break; 3066 default: 3067 throw new IllegalStateException("Unknown item type: " + 3068 pendingInfo.itemType); 3069 } 3070 } 3071 }; 3072 View finalView = pendingInfo.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET 3073 ? ((PendingAddWidgetInfo) pendingInfo).boundWidget : null; 3074 int animationStyle = ANIMATE_INTO_POSITION_AND_DISAPPEAR; 3075 if (pendingInfo.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET && 3076 ((PendingAddWidgetInfo) pendingInfo).info.configure != null) { 3077 animationStyle = ANIMATE_INTO_POSITION_AND_REMAIN; 3078 } 3079 animateWidgetDrop(info, cellLayout, d.dragView, onAnimationCompleteRunnable, 3080 animationStyle, finalView, true); 3081 } else { 3082 // This is for other drag/drop cases, like dragging from All Apps 3083 View view = null; 3084 3085 switch (info.itemType) { 3086 case LauncherSettings.Favorites.ITEM_TYPE_APPLICATION: 3087 case LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT: 3088 if (info.container == NO_ID && info instanceof ApplicationInfo) { 3089 // Came from all apps -- make a copy 3090 info = new ShortcutInfo((ApplicationInfo) info); 3091 } 3092 view = mLauncher.createShortcut(R.layout.application, cellLayout, 3093 (ShortcutInfo) info); 3094 break; 3095 case LauncherSettings.Favorites.ITEM_TYPE_FOLDER: 3096 view = FolderIcon.fromXml(R.layout.folder_icon, mLauncher, cellLayout, 3097 (FolderInfo) info, mIconCache); 3098 break; 3099 default: 3100 throw new IllegalStateException("Unknown item type: " + info.itemType); 3101 } 3102 3103 // First we find the cell nearest to point at which the item is 3104 // dropped, without any consideration to whether there is an item there. 3105 if (touchXY != null) { 3106 mTargetCell = findNearestArea((int) touchXY[0], (int) touchXY[1], spanX, spanY, 3107 cellLayout, mTargetCell); 3108 float distance = cellLayout.getDistanceFromCell(mDragViewVisualCenter[0], 3109 mDragViewVisualCenter[1], mTargetCell); 3110 d.postAnimationRunnable = exitSpringLoadedRunnable; 3111 if (createUserFolderIfNecessary(view, container, cellLayout, mTargetCell, distance, 3112 true, d.dragView, d.postAnimationRunnable)) { 3113 return; 3114 } 3115 if (addToExistingFolderIfNecessary(view, cellLayout, mTargetCell, distance, d, 3116 true)) { 3117 return; 3118 } 3119 } 3120 3121 if (touchXY != null) { 3122 // when dragging and dropping, just find the closest free spot 3123 mTargetCell = cellLayout.createArea((int) mDragViewVisualCenter[0], 3124 (int) mDragViewVisualCenter[1], 1, 1, 1, 1, 3125 null, mTargetCell, null, CellLayout.MODE_ON_DROP_EXTERNAL); 3126 } else { 3127 cellLayout.findCellForSpan(mTargetCell, 1, 1); 3128 } 3129 addInScreen(view, container, screen, mTargetCell[0], mTargetCell[1], info.spanX, 3130 info.spanY, insertAtFirst); 3131 cellLayout.onDropChild(view); 3132 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) view.getLayoutParams(); 3133 cellLayout.getShortcutsAndWidgets().measureChild(view); 3134 3135 3136 LauncherModel.addOrMoveItemInDatabase(mLauncher, info, container, screen, 3137 lp.cellX, lp.cellY); 3138 3139 if (d.dragView != null) { 3140 // We wrap the animation call in the temporary set and reset of the current 3141 // cellLayout to its final transform -- this means we animate the drag view to 3142 // the correct final location. 3143 setFinalTransitionTransform(cellLayout); 3144 mLauncher.getDragLayer().animateViewIntoPosition(d.dragView, view, 3145 exitSpringLoadedRunnable); 3146 resetTransitionTransform(cellLayout); 3147 } 3148 } 3149 } 3150 3151 public Bitmap createWidgetBitmap(ItemInfo widgetInfo, View layout) { 3152 int[] unScaledSize = mLauncher.getWorkspace().estimateItemSize(widgetInfo.spanX, 3153 widgetInfo.spanY, widgetInfo, false); 3154 int visibility = layout.getVisibility(); 3155 layout.setVisibility(VISIBLE); 3156 3157 int width = MeasureSpec.makeMeasureSpec(unScaledSize[0], MeasureSpec.EXACTLY); 3158 int height = MeasureSpec.makeMeasureSpec(unScaledSize[1], MeasureSpec.EXACTLY); 3159 Bitmap b = Bitmap.createBitmap(unScaledSize[0], unScaledSize[1], 3160 Bitmap.Config.ARGB_8888); 3161 Canvas c = new Canvas(b); 3162 3163 layout.measure(width, height); 3164 layout.layout(0, 0, unScaledSize[0], unScaledSize[1]); 3165 layout.draw(c); 3166 c.setBitmap(null); 3167 layout.setVisibility(visibility); 3168 return b; 3169 } 3170 3171 private void getFinalPositionForDropAnimation(int[] loc, float[] scaleXY, 3172 DragView dragView, CellLayout layout, ItemInfo info, int[] targetCell, 3173 boolean external, boolean scale) { 3174 // Now we animate the dragView, (ie. the widget or shortcut preview) into its final 3175 // location and size on the home screen. 3176 int spanX = info.spanX; 3177 int spanY = info.spanY; 3178 3179 Rect r = estimateItemPosition(layout, info, targetCell[0], targetCell[1], spanX, spanY); 3180 loc[0] = r.left; 3181 loc[1] = r.top; 3182 3183 setFinalTransitionTransform(layout); 3184 float cellLayoutScale = 3185 mLauncher.getDragLayer().getDescendantCoordRelativeToSelf(layout, loc); 3186 resetTransitionTransform(layout); 3187 3188 float dragViewScaleX; 3189 float dragViewScaleY; 3190 if (scale) { 3191 dragViewScaleX = (1.0f * r.width()) / dragView.getMeasuredWidth(); 3192 dragViewScaleY = (1.0f * r.height()) / dragView.getMeasuredHeight(); 3193 } else { 3194 dragViewScaleX = 1f; 3195 dragViewScaleY = 1f; 3196 } 3197 3198 // The animation will scale the dragView about its center, so we need to center about 3199 // the final location. 3200 loc[0] -= (dragView.getMeasuredWidth() - cellLayoutScale * r.width()) / 2; 3201 loc[1] -= (dragView.getMeasuredHeight() - cellLayoutScale * r.height()) / 2; 3202 3203 scaleXY[0] = dragViewScaleX * cellLayoutScale; 3204 scaleXY[1] = dragViewScaleY * cellLayoutScale; 3205 } 3206 3207 public void animateWidgetDrop(ItemInfo info, CellLayout cellLayout, DragView dragView, 3208 final Runnable onCompleteRunnable, int animationType, final View finalView, 3209 boolean external) { 3210 Rect from = new Rect(); 3211 mLauncher.getDragLayer().getViewRectRelativeToSelf(dragView, from); 3212 3213 int[] finalPos = new int[2]; 3214 float scaleXY[] = new float[2]; 3215 boolean scalePreview = !(info instanceof PendingAddShortcutInfo); 3216 getFinalPositionForDropAnimation(finalPos, scaleXY, dragView, cellLayout, info, mTargetCell, 3217 external, scalePreview); 3218 3219 Resources res = mLauncher.getResources(); 3220 int duration = res.getInteger(R.integer.config_dropAnimMaxDuration) - 200; 3221 3222 // In the case where we've prebound the widget, we remove it from the DragLayer 3223 if (finalView instanceof AppWidgetHostView && external) { 3224 Log.d(TAG, "6557954 Animate widget drop, final view is appWidgetHostView"); 3225 mLauncher.getDragLayer().removeView(finalView); 3226 } 3227 if ((animationType == ANIMATE_INTO_POSITION_AND_RESIZE || external) && finalView != null) { 3228 Bitmap crossFadeBitmap = createWidgetBitmap(info, finalView); 3229 dragView.setCrossFadeBitmap(crossFadeBitmap); 3230 dragView.crossFade((int) (duration * 0.8f)); 3231 } else if (info.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET && external) { 3232 scaleXY[0] = scaleXY[1] = Math.min(scaleXY[0], scaleXY[1]); 3233 } 3234 3235 DragLayer dragLayer = mLauncher.getDragLayer(); 3236 if (animationType == CANCEL_TWO_STAGE_WIDGET_DROP_ANIMATION) { 3237 mLauncher.getDragLayer().animateViewIntoPosition(dragView, finalPos, 0f, 0.1f, 0.1f, 3238 DragLayer.ANIMATION_END_DISAPPEAR, onCompleteRunnable, duration); 3239 } else { 3240 int endStyle; 3241 if (animationType == ANIMATE_INTO_POSITION_AND_REMAIN) { 3242 endStyle = DragLayer.ANIMATION_END_REMAIN_VISIBLE; 3243 } else { 3244 endStyle = DragLayer.ANIMATION_END_DISAPPEAR;; 3245 } 3246 3247 Runnable onComplete = new Runnable() { 3248 @Override 3249 public void run() { 3250 if (finalView != null) { 3251 finalView.setVisibility(VISIBLE); 3252 } 3253 if (onCompleteRunnable != null) { 3254 onCompleteRunnable.run(); 3255 } 3256 } 3257 }; 3258 dragLayer.animateViewIntoPosition(dragView, from.left, from.top, finalPos[0], 3259 finalPos[1], 1, 1, 1, scaleXY[0], scaleXY[1], onComplete, endStyle, 3260 duration, this); 3261 } 3262 } 3263 3264 public void setFinalTransitionTransform(CellLayout layout) { 3265 if (isSwitchingState()) { 3266 int index = indexOfChild(layout); 3267 mCurrentScaleX = layout.getScaleX(); 3268 mCurrentScaleY = layout.getScaleY(); 3269 mCurrentTranslationX = layout.getTranslationX(); 3270 mCurrentTranslationY = layout.getTranslationY(); 3271 mCurrentRotationY = layout.getRotationY(); 3272 layout.setScaleX(mNewScaleXs[index]); 3273 layout.setScaleY(mNewScaleYs[index]); 3274 layout.setTranslationX(mNewTranslationXs[index]); 3275 layout.setTranslationY(mNewTranslationYs[index]); 3276 layout.setRotationY(mNewRotationYs[index]); 3277 } 3278 } 3279 public void resetTransitionTransform(CellLayout layout) { 3280 if (isSwitchingState()) { 3281 mCurrentScaleX = layout.getScaleX(); 3282 mCurrentScaleY = layout.getScaleY(); 3283 mCurrentTranslationX = layout.getTranslationX(); 3284 mCurrentTranslationY = layout.getTranslationY(); 3285 mCurrentRotationY = layout.getRotationY(); 3286 layout.setScaleX(mCurrentScaleX); 3287 layout.setScaleY(mCurrentScaleY); 3288 layout.setTranslationX(mCurrentTranslationX); 3289 layout.setTranslationY(mCurrentTranslationY); 3290 layout.setRotationY(mCurrentRotationY); 3291 } 3292 } 3293 3294 /** 3295 * Return the current {@link CellLayout}, correctly picking the destination 3296 * screen while a scroll is in progress. 3297 */ 3298 public CellLayout getCurrentDropLayout() { 3299 return (CellLayout) getChildAt(getNextPage()); 3300 } 3301 3302 /** 3303 * Return the current CellInfo describing our current drag; this method exists 3304 * so that Launcher can sync this object with the correct info when the activity is created/ 3305 * destroyed 3306 * 3307 */ 3308 public CellLayout.CellInfo getDragInfo() { 3309 return mDragInfo; 3310 } 3311 3312 /** 3313 * Calculate the nearest cell where the given object would be dropped. 3314 * 3315 * pixelX and pixelY should be in the coordinate system of layout 3316 */ 3317 private int[] findNearestArea(int pixelX, int pixelY, 3318 int spanX, int spanY, CellLayout layout, int[] recycle) { 3319 return layout.findNearestArea( 3320 pixelX, pixelY, spanX, spanY, recycle); 3321 } 3322 3323 void setup(DragController dragController) { 3324 mSpringLoadedDragController = new SpringLoadedDragController(mLauncher); 3325 mDragController = dragController; 3326 3327 // hardware layers on children are enabled on startup, but should be disabled until 3328 // needed 3329 updateChildrenLayersEnabled(false); 3330 setWallpaperDimension(); 3331 } 3332 3333 /** 3334 * Called at the end of a drag which originated on the workspace. 3335 */ 3336 public void onDropCompleted(View target, DragObject d, boolean isFlingToDelete, 3337 boolean success) { 3338 if (success) { 3339 if (target != this) { 3340 if (mDragInfo != null) { 3341 getParentCellLayoutForView(mDragInfo.cell).removeView(mDragInfo.cell); 3342 if (mDragInfo.cell instanceof DropTarget) { 3343 mDragController.removeDropTarget((DropTarget) mDragInfo.cell); 3344 } 3345 } 3346 } 3347 } else if (mDragInfo != null) { 3348 CellLayout cellLayout; 3349 if (mLauncher.isHotseatLayout(target)) { 3350 cellLayout = mLauncher.getHotseat().getLayout(); 3351 } else { 3352 cellLayout = (CellLayout) getChildAt(mDragInfo.screen); 3353 } 3354 cellLayout.onDropChild(mDragInfo.cell); 3355 } 3356 if (d.cancelled && mDragInfo.cell != null) { 3357 mDragInfo.cell.setVisibility(VISIBLE); 3358 } 3359 mDragOutline = null; 3360 mDragInfo = null; 3361 3362 // Hide the scrolling indicator after you pick up an item 3363 hideScrollingIndicator(false); 3364 } 3365 3366 void updateItemLocationsInDatabase(CellLayout cl) { 3367 int count = cl.getShortcutsAndWidgets().getChildCount(); 3368 3369 int screen = indexOfChild(cl); 3370 int container = Favorites.CONTAINER_DESKTOP; 3371 3372 if (mLauncher.isHotseatLayout(cl)) { 3373 screen = -1; 3374 container = Favorites.CONTAINER_HOTSEAT; 3375 } 3376 3377 for (int i = 0; i < count; i++) { 3378 View v = cl.getShortcutsAndWidgets().getChildAt(i); 3379 ItemInfo info = (ItemInfo) v.getTag(); 3380 // Null check required as the AllApps button doesn't have an item info 3381 if (info != null && info.requiresDbUpdate) { 3382 info.requiresDbUpdate = false; 3383 LauncherModel.modifyItemInDatabase(mLauncher, info, container, screen, info.cellX, 3384 info.cellY, info.spanX, info.spanY); 3385 } 3386 } 3387 } 3388 3389 @Override 3390 public boolean supportsFlingToDelete() { 3391 return true; 3392 } 3393 3394 @Override 3395 public void onFlingToDelete(DragObject d, int x, int y, PointF vec) { 3396 // Do nothing 3397 } 3398 3399 @Override 3400 public void onFlingToDeleteCompleted() { 3401 // Do nothing 3402 } 3403 3404 public boolean isDropEnabled() { 3405 return true; 3406 } 3407 3408 @Override 3409 protected void onRestoreInstanceState(Parcelable state) { 3410 super.onRestoreInstanceState(state); 3411 Launcher.setScreen(mCurrentPage); 3412 } 3413 3414 @Override 3415 public void scrollLeft() { 3416 if (!isSmall() && !mIsSwitchingState) { 3417 super.scrollLeft(); 3418 } 3419 Folder openFolder = getOpenFolder(); 3420 if (openFolder != null) { 3421 openFolder.completeDragExit(); 3422 } 3423 } 3424 3425 @Override 3426 public void scrollRight() { 3427 if (!isSmall() && !mIsSwitchingState) { 3428 super.scrollRight(); 3429 } 3430 Folder openFolder = getOpenFolder(); 3431 if (openFolder != null) { 3432 openFolder.completeDragExit(); 3433 } 3434 } 3435 3436 @Override 3437 public boolean onEnterScrollArea(int x, int y, int direction) { 3438 // Ignore the scroll area if we are dragging over the hot seat 3439 boolean isPortrait = !LauncherApplication.isScreenLandscape(getContext()); 3440 if (mLauncher.getHotseat() != null && isPortrait) { 3441 Rect r = new Rect(); 3442 mLauncher.getHotseat().getHitRect(r); 3443 if (r.contains(x, y)) { 3444 return false; 3445 } 3446 } 3447 3448 boolean result = false; 3449 if (!isSmall() && !mIsSwitchingState) { 3450 mInScrollArea = true; 3451 3452 final int page = getNextPage() + 3453 (direction == DragController.SCROLL_LEFT ? -1 : 1); 3454 3455 // We always want to exit the current layout to ensure parity of enter / exit 3456 setCurrentDropLayout(null); 3457 3458 if (0 <= page && page < getChildCount()) { 3459 CellLayout layout = (CellLayout) getChildAt(page); 3460 setCurrentDragOverlappingLayout(layout); 3461 3462 // Workspace is responsible for drawing the edge glow on adjacent pages, 3463 // so we need to redraw the workspace when this may have changed. 3464 invalidate(); 3465 result = true; 3466 } 3467 } 3468 return result; 3469 } 3470 3471 @Override 3472 public boolean onExitScrollArea() { 3473 boolean result = false; 3474 if (mInScrollArea) { 3475 invalidate(); 3476 CellLayout layout = getCurrentDropLayout(); 3477 setCurrentDropLayout(layout); 3478 setCurrentDragOverlappingLayout(layout); 3479 3480 result = true; 3481 mInScrollArea = false; 3482 } 3483 return result; 3484 } 3485 3486 private void onResetScrollArea() { 3487 setCurrentDragOverlappingLayout(null); 3488 mInScrollArea = false; 3489 } 3490 3491 /** 3492 * Returns a specific CellLayout 3493 */ 3494 CellLayout getParentCellLayoutForView(View v) { 3495 ArrayList<CellLayout> layouts = getWorkspaceAndHotseatCellLayouts(); 3496 for (CellLayout layout : layouts) { 3497 if (layout.getShortcutsAndWidgets().indexOfChild(v) > -1) { 3498 return layout; 3499 } 3500 } 3501 return null; 3502 } 3503 3504 /** 3505 * Returns a list of all the CellLayouts in the workspace. 3506 */ 3507 ArrayList<CellLayout> getWorkspaceAndHotseatCellLayouts() { 3508 ArrayList<CellLayout> layouts = new ArrayList<CellLayout>(); 3509 int screenCount = getChildCount(); 3510 for (int screen = 0; screen < screenCount; screen++) { 3511 layouts.add(((CellLayout) getChildAt(screen))); 3512 } 3513 if (mLauncher.getHotseat() != null) { 3514 layouts.add(mLauncher.getHotseat().getLayout()); 3515 } 3516 return layouts; 3517 } 3518 3519 /** 3520 * We should only use this to search for specific children. Do not use this method to modify 3521 * ShortcutsAndWidgetsContainer directly. Includes ShortcutAndWidgetContainers from 3522 * the hotseat and workspace pages 3523 */ 3524 ArrayList<ShortcutAndWidgetContainer> getAllShortcutAndWidgetContainers() { 3525 ArrayList<ShortcutAndWidgetContainer> childrenLayouts = 3526 new ArrayList<ShortcutAndWidgetContainer>(); 3527 int screenCount = getChildCount(); 3528 for (int screen = 0; screen < screenCount; screen++) { 3529 childrenLayouts.add(((CellLayout) getChildAt(screen)).getShortcutsAndWidgets()); 3530 } 3531 if (mLauncher.getHotseat() != null) { 3532 childrenLayouts.add(mLauncher.getHotseat().getLayout().getShortcutsAndWidgets()); 3533 } 3534 return childrenLayouts; 3535 } 3536 3537 public Folder getFolderForTag(Object tag) { 3538 ArrayList<ShortcutAndWidgetContainer> childrenLayouts = 3539 getAllShortcutAndWidgetContainers(); 3540 for (ShortcutAndWidgetContainer layout: childrenLayouts) { 3541 int count = layout.getChildCount(); 3542 for (int i = 0; i < count; i++) { 3543 View child = layout.getChildAt(i); 3544 if (child instanceof Folder) { 3545 Folder f = (Folder) child; 3546 if (f.getInfo() == tag && f.getInfo().opened) { 3547 return f; 3548 } 3549 } 3550 } 3551 } 3552 return null; 3553 } 3554 3555 public View getViewForTag(Object tag) { 3556 ArrayList<ShortcutAndWidgetContainer> childrenLayouts = 3557 getAllShortcutAndWidgetContainers(); 3558 for (ShortcutAndWidgetContainer layout: childrenLayouts) { 3559 int count = layout.getChildCount(); 3560 for (int i = 0; i < count; i++) { 3561 View child = layout.getChildAt(i); 3562 if (child.getTag() == tag) { 3563 return child; 3564 } 3565 } 3566 } 3567 return null; 3568 } 3569 3570 void clearDropTargets() { 3571 ArrayList<ShortcutAndWidgetContainer> childrenLayouts = 3572 getAllShortcutAndWidgetContainers(); 3573 for (ShortcutAndWidgetContainer layout: childrenLayouts) { 3574 int childCount = layout.getChildCount(); 3575 for (int j = 0; j < childCount; j++) { 3576 View v = layout.getChildAt(j); 3577 if (v instanceof DropTarget) { 3578 mDragController.removeDropTarget((DropTarget) v); 3579 } 3580 } 3581 } 3582 } 3583 3584 void removeItems(final ArrayList<String> packages) { 3585 final HashSet<String> packageNames = new HashSet<String>(); 3586 packageNames.addAll(packages); 3587 3588 ArrayList<CellLayout> cellLayouts = getWorkspaceAndHotseatCellLayouts(); 3589 for (final CellLayout layoutParent: cellLayouts) { 3590 final ViewGroup layout = layoutParent.getShortcutsAndWidgets(); 3591 3592 // Avoid ANRs by treating each screen separately 3593 post(new Runnable() { 3594 public void run() { 3595 final ArrayList<View> childrenToRemove = new ArrayList<View>(); 3596 childrenToRemove.clear(); 3597 3598 int childCount = layout.getChildCount(); 3599 for (int j = 0; j < childCount; j++) { 3600 final View view = layout.getChildAt(j); 3601 Object tag = view.getTag(); 3602 3603 if (tag instanceof ShortcutInfo) { 3604 final ShortcutInfo info = (ShortcutInfo) tag; 3605 final Intent intent = info.intent; 3606 final ComponentName name = intent.getComponent(); 3607 3608 if (name != null) { 3609 if (packageNames.contains(name.getPackageName())) { 3610 LauncherModel.deleteItemFromDatabase(mLauncher, info); 3611 childrenToRemove.add(view); 3612 } 3613 } 3614 } else if (tag instanceof FolderInfo) { 3615 final FolderInfo info = (FolderInfo) tag; 3616 final ArrayList<ShortcutInfo> contents = info.contents; 3617 final int contentsCount = contents.size(); 3618 final ArrayList<ShortcutInfo> appsToRemoveFromFolder = 3619 new ArrayList<ShortcutInfo>(); 3620 3621 for (int k = 0; k < contentsCount; k++) { 3622 final ShortcutInfo appInfo = contents.get(k); 3623 final Intent intent = appInfo.intent; 3624 final ComponentName name = intent.getComponent(); 3625 3626 if (name != null) { 3627 if (packageNames.contains(name.getPackageName())) { 3628 appsToRemoveFromFolder.add(appInfo); 3629 } 3630 } 3631 } 3632 for (ShortcutInfo item: appsToRemoveFromFolder) { 3633 info.remove(item); 3634 LauncherModel.deleteItemFromDatabase(mLauncher, item); 3635 } 3636 } else if (tag instanceof LauncherAppWidgetInfo) { 3637 final LauncherAppWidgetInfo info = (LauncherAppWidgetInfo) tag; 3638 final ComponentName provider = info.providerName; 3639 if (provider != null) { 3640 if (packageNames.contains(provider.getPackageName())) { 3641 LauncherModel.deleteItemFromDatabase(mLauncher, info); 3642 childrenToRemove.add(view); 3643 } 3644 } 3645 } 3646 } 3647 3648 childCount = childrenToRemove.size(); 3649 for (int j = 0; j < childCount; j++) { 3650 View child = childrenToRemove.get(j); 3651 // Note: We can not remove the view directly from CellLayoutChildren as this 3652 // does not re-mark the spaces as unoccupied. 3653 layoutParent.removeViewInLayout(child); 3654 if (child instanceof DropTarget) { 3655 mDragController.removeDropTarget((DropTarget)child); 3656 } 3657 } 3658 3659 if (childCount > 0) { 3660 layout.requestLayout(); 3661 layout.invalidate(); 3662 } 3663 } 3664 }); 3665 } 3666 3667 // Clean up new-apps animation list 3668 post(new Runnable() { 3669 @Override 3670 public void run() { 3671 String spKey = LauncherApplication.getSharedPreferencesKey(); 3672 SharedPreferences sp = getContext().getSharedPreferences(spKey, 3673 Context.MODE_PRIVATE); 3674 Set<String> newApps = sp.getStringSet(InstallShortcutReceiver.NEW_APPS_LIST_KEY, 3675 null); 3676 3677 // Remove all queued items that match the same package 3678 if (newApps != null) { 3679 synchronized (newApps) { 3680 Iterator<String> iter = newApps.iterator(); 3681 while (iter.hasNext()) { 3682 try { 3683 Intent intent = Intent.parseUri(iter.next(), 0); 3684 String pn = ItemInfo.getPackageName(intent); 3685 if (packageNames.contains(pn)) { 3686 iter.remove(); 3687 } 3688 } catch (URISyntaxException e) {} 3689 } 3690 } 3691 } 3692 } 3693 }); 3694 } 3695 3696 void updateShortcuts(ArrayList<ApplicationInfo> apps) { 3697 ArrayList<ShortcutAndWidgetContainer> childrenLayouts = getAllShortcutAndWidgetContainers(); 3698 for (ShortcutAndWidgetContainer layout: childrenLayouts) { 3699 int childCount = layout.getChildCount(); 3700 for (int j = 0; j < childCount; j++) { 3701 final View view = layout.getChildAt(j); 3702 Object tag = view.getTag(); 3703 if (tag instanceof ShortcutInfo) { 3704 ShortcutInfo info = (ShortcutInfo) tag; 3705 // We need to check for ACTION_MAIN otherwise getComponent() might 3706 // return null for some shortcuts (for instance, for shortcuts to 3707 // web pages.) 3708 final Intent intent = info.intent; 3709 final ComponentName name = intent.getComponent(); 3710 if (info.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPLICATION && 3711 Intent.ACTION_MAIN.equals(intent.getAction()) && name != null) { 3712 final int appCount = apps.size(); 3713 for (int k = 0; k < appCount; k++) { 3714 ApplicationInfo app = apps.get(k); 3715 if (app.componentName.equals(name)) { 3716 BubbleTextView shortcut = (BubbleTextView) view; 3717 info.updateIcon(mIconCache); 3718 info.title = app.title.toString(); 3719 shortcut.applyFromShortcutInfo(info, mIconCache); 3720 } 3721 } 3722 } 3723 } 3724 } 3725 } 3726 } 3727 3728 void moveToDefaultScreen(boolean animate) { 3729 if (!isSmall()) { 3730 if (animate) { 3731 snapToPage(mDefaultPage); 3732 } else { 3733 setCurrentPage(mDefaultPage); 3734 } 3735 } 3736 getChildAt(mDefaultPage).requestFocus(); 3737 } 3738 3739 @Override 3740 public void syncPages() { 3741 } 3742 3743 @Override 3744 public void syncPageItems(int page, boolean immediate) { 3745 } 3746 3747 @Override 3748 protected String getCurrentPageDescription() { 3749 int page = (mNextPage != INVALID_PAGE) ? mNextPage : mCurrentPage; 3750 return String.format(getContext().getString(R.string.workspace_scroll_format), 3751 page + 1, getChildCount()); 3752 } 3753 3754 public void getLocationInDragLayer(int[] loc) { 3755 mLauncher.getDragLayer().getLocationInDragLayer(this, loc); 3756 } 3757 3758 void setFadeForOverScroll(float fade) { 3759 if (!isScrollingIndicatorEnabled()) return; 3760 3761 mOverscrollFade = fade; 3762 float reducedFade = 0.5f + 0.5f * (1 - fade); 3763 final ViewGroup parent = (ViewGroup) getParent(); 3764 final ImageView qsbDivider = (ImageView) (parent.findViewById(R.id.qsb_divider)); 3765 final ImageView dockDivider = (ImageView) (parent.findViewById(R.id.dock_divider)); 3766 final View scrollIndicator = getScrollingIndicator(); 3767 3768 cancelScrollingIndicatorAnimations(); 3769 if (qsbDivider != null) qsbDivider.setAlpha(reducedFade); 3770 if (dockDivider != null) dockDivider.setAlpha(reducedFade); 3771 scrollIndicator.setAlpha(1 - fade); 3772 } 3773} 3774