Workspace.java revision 02765c94268d7dc3531c87a638a184a3b481ad40
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.AnimatorListenerAdapter; 21import android.animation.AnimatorSet; 22import android.animation.ObjectAnimator; 23import android.animation.TimeInterpolator; 24import android.animation.ValueAnimator; 25import android.animation.Animator.AnimatorListener; 26import android.animation.ValueAnimator.AnimatorUpdateListener; 27import android.app.AlertDialog; 28import android.app.WallpaperManager; 29import android.appwidget.AppWidgetManager; 30import android.appwidget.AppWidgetProviderInfo; 31import android.content.ClipData; 32import android.content.ClipDescription; 33import android.content.ComponentName; 34import android.content.Context; 35import android.content.Intent; 36import android.content.pm.PackageManager; 37import android.content.res.Resources; 38import android.content.res.TypedArray; 39import android.graphics.Bitmap; 40import android.graphics.Camera; 41import android.graphics.Canvas; 42import android.graphics.Color; 43import android.graphics.Matrix; 44import android.graphics.Paint; 45import android.graphics.Rect; 46import android.graphics.RectF; 47import android.graphics.Region.Op; 48import android.graphics.drawable.Drawable; 49import android.os.IBinder; 50import android.os.Parcelable; 51import android.util.AttributeSet; 52import android.util.DisplayMetrics; 53import android.util.Log; 54import android.util.Pair; 55import android.view.Display; 56import android.view.DragEvent; 57import android.view.MotionEvent; 58import android.view.View; 59import android.view.ViewGroup; 60import android.view.animation.DecelerateInterpolator; 61import android.widget.ImageView; 62import android.widget.TextView; 63import android.widget.Toast; 64 65import com.android.launcher.R; 66import com.android.launcher2.FolderIcon.FolderRingAnimator; 67import com.android.launcher2.InstallWidgetReceiver.WidgetMimeTypeHandlerData; 68 69import java.util.ArrayList; 70import java.util.HashSet; 71import java.util.List; 72 73/** 74 * The workspace is a wide area with a wallpaper and a finite number of pages. 75 * Each page contains a number of icons, folders or widgets the user can 76 * interact with. A workspace is meant to be used with a fixed width only. 77 */ 78public class Workspace extends SmoothPagedView 79 implements DropTarget, DragSource, DragScroller, View.OnTouchListener, 80 DragController.DragListener { 81 @SuppressWarnings({"UnusedDeclaration"}) 82 private static final String TAG = "Launcher.Workspace"; 83 84 // Y rotation to apply to the workspace screens 85 private static final float WORKSPACE_ROTATION = 12.5f; 86 87 // These are extra scale factors to apply to the mini home screens 88 // so as to achieve the desired transform 89 private static final float EXTRA_SCALE_FACTOR_0 = 0.972f; 90 private static final float EXTRA_SCALE_FACTOR_1 = 1.0f; 91 private static final float EXTRA_SCALE_FACTOR_2 = 1.10f; 92 93 private static final int CHILDREN_OUTLINE_FADE_OUT_DELAY = 0; 94 private static final int CHILDREN_OUTLINE_FADE_OUT_DURATION = 375; 95 private static final int CHILDREN_OUTLINE_FADE_IN_DURATION = 100; 96 97 private static final int BACKGROUND_FADE_OUT_DURATION = 350; 98 private static final int BACKGROUND_FADE_IN_DURATION = 350; 99 100 private static final int ADJACENT_SCREEN_DROP_DURATION = 300; 101 102 // These animators are used to fade the children's outlines 103 private ObjectAnimator mChildrenOutlineFadeInAnimation; 104 private ObjectAnimator mChildrenOutlineFadeOutAnimation; 105 private float mChildrenOutlineAlpha = 0; 106 107 // These properties refer to the background protection gradient used for AllApps and Customize 108 private ValueAnimator mBackgroundFadeInAnimation; 109 private ValueAnimator mBackgroundFadeOutAnimation; 110 private Drawable mBackground; 111 boolean mDrawBackground = true; 112 private float mBackgroundAlpha = 0; 113 private float mOverScrollMaxBackgroundAlpha = 0.0f; 114 private int mOverScrollPageIndex = -1; 115 private AnimatorSet mDividerAnimator; 116 117 private final WallpaperManager mWallpaperManager; 118 private IBinder mWindowToken; 119 120 private int mDefaultPage; 121 122 /** 123 * CellInfo for the cell that is currently being dragged 124 */ 125 private CellLayout.CellInfo mDragInfo; 126 127 /** 128 * Target drop area calculated during last acceptDrop call. 129 */ 130 private int[] mTargetCell = new int[2]; 131 132 /** 133 * The CellLayout that is currently being dragged over 134 */ 135 private CellLayout mDragTargetLayout = null; 136 137 private Launcher mLauncher; 138 private IconCache mIconCache; 139 private DragController mDragController; 140 141 // These are temporary variables to prevent having to allocate a new object just to 142 // return an (x, y) value from helper functions. Do NOT use them to maintain other state. 143 private int[] mTempCell = new int[2]; 144 private int[] mTempEstimate = new int[2]; 145 private float[] mDragViewVisualCenter = new float[2]; 146 private float[] mTempDragCoordinates = new float[2]; 147 private float[] mTempCellLayoutCenterCoordinates = new float[2]; 148 private float[] mTempDragBottomRightCoordinates = new float[2]; 149 private Matrix mTempInverseMatrix = new Matrix(); 150 151 private SpringLoadedDragController mSpringLoadedDragController; 152 private float mSpringLoadedShrinkFactor; 153 154 private static final int DEFAULT_CELL_COUNT_X = 4; 155 private static final int DEFAULT_CELL_COUNT_Y = 4; 156 157 // State variable that indicates whether the pages are small (ie when you're 158 // in all apps or customize mode) 159 160 enum State { NORMAL, SPRING_LOADED, SMALL }; 161 private State mState; 162 private boolean mIsSwitchingState = false; 163 164 private boolean mSwitchStateAfterFirstLayout = false; 165 private State mStateAfterFirstLayout; 166 167 private AnimatorSet mAnimator; 168 private AnimatorListener mShrinkAnimationListener; 169 private AnimatorListener mUnshrinkAnimationListener; 170 // Working around the face that cancelled animations may not actually be cancelled if they 171 // are cancelled before starting 172 private boolean mShrinkAnimationEnabled; 173 private boolean mUnshrinkAnimationEnabled; 174 175 boolean mAnimatingViewIntoPlace = false; 176 boolean mIsDragOccuring = false; 177 boolean mChildrenLayersEnabled = true; 178 179 /** Is the user is dragging an item near the edge of a page? */ 180 private boolean mInScrollArea = false; 181 182 private final HolographicOutlineHelper mOutlineHelper = new HolographicOutlineHelper(); 183 private Bitmap mDragOutline = null; 184 private final Rect mTempRect = new Rect(); 185 private final int[] mTempXY = new int[2]; 186 187 // Paint used to draw external drop outline 188 private final Paint mExternalDragOutlinePaint = new Paint(); 189 190 // Camera and Matrix used to determine the final position of a neighboring CellLayout 191 private final Matrix mMatrix = new Matrix(); 192 private final Camera mCamera = new Camera(); 193 private final float mTempFloat2[] = new float[2]; 194 195 enum WallpaperVerticalOffset { TOP, MIDDLE, BOTTOM }; 196 int mWallpaperWidth; 197 int mWallpaperHeight; 198 WallpaperOffsetInterpolator mWallpaperOffset; 199 boolean mUpdateWallpaperOffsetImmediately = false; 200 boolean mSyncWallpaperOffsetWithScroll = true; 201 private Runnable mDelayedResizeRunnable; 202 203 // Variables relating to the creation of user folders by hovering shortcuts over shortcuts 204 private static final int FOLDER_CREATION_TIMEOUT = 250; 205 private final Alarm mFolderCreationAlarm = new Alarm(); 206 private FolderRingAnimator mDragFolderRingAnimator = null; 207 private View mLastDragOverView = null; 208 private boolean mCreateUserFolderOnDrop = false; 209 210 // Variables relating to touch disambiguation (scrolling workspace vs. scrolling a widget) 211 private float mXDown; 212 private float mYDown; 213 final static float START_DAMPING_TOUCH_SLOP_ANGLE = (float) Math.PI / 6; 214 final static float MAX_SWIPE_ANGLE = (float) Math.PI / 3; 215 final static float TOUCH_SLOP_DAMPING_FACTOR = 4; 216 217 // These variables are used for storing the initial and final values during workspace animations 218 private int mSavedScrollX; 219 private float mSavedRotationY; 220 private float mSavedTranslationX; 221 private float mCurrentScaleX; 222 private float mCurrentScaleY; 223 private float mCurrentRotationY; 224 private float mCurrentTranslationX; 225 private float mCurrentTranslationY; 226 private float[] mOldTranslationXs; 227 private float[] mOldTranslationYs; 228 private float[] mOldScaleXs; 229 private float[] mOldScaleYs; 230 private float[] mOldBackgroundAlphas; 231 private float[] mOldBackgroundAlphaMultipliers; 232 private float[] mOldAlphas; 233 private float[] mOldRotationYs; 234 private float[] mNewTranslationXs; 235 private float[] mNewTranslationYs; 236 private float[] mNewScaleXs; 237 private float[] mNewScaleYs; 238 private float[] mNewBackgroundAlphas; 239 private float[] mNewBackgroundAlphaMultipliers; 240 private float[] mNewAlphas; 241 private float[] mNewRotationYs; 242 private float mTransitionProgress; 243 244 /** 245 * Used to inflate the Workspace from XML. 246 * 247 * @param context The application's context. 248 * @param attrs The attributes set containing the Workspace's customization values. 249 */ 250 public Workspace(Context context, AttributeSet attrs) { 251 this(context, attrs, 0); 252 } 253 254 /** 255 * Used to inflate the Workspace from XML. 256 * 257 * @param context The application's context. 258 * @param attrs The attributes set containing the Workspace's customization values. 259 * @param defStyle Unused. 260 */ 261 public Workspace(Context context, AttributeSet attrs, int defStyle) { 262 super(context, attrs, defStyle); 263 mContentIsRefreshable = false; 264 265 // With workspace, data is available straight from the get-go 266 setDataIsReady(); 267 268 if (!LauncherApplication.isScreenLarge()) { 269 mCenterPagesVertically = false; 270 if (!LauncherApplication.isScreenLandscape(context)) { 271 mFadeInAdjacentScreens = false; 272 } 273 } 274 275 mWallpaperManager = WallpaperManager.getInstance(context); 276 277 int cellCountX = DEFAULT_CELL_COUNT_X; 278 int cellCountY = DEFAULT_CELL_COUNT_Y; 279 280 TypedArray a = context.obtainStyledAttributes(attrs, 281 R.styleable.Workspace, defStyle, 0); 282 283 final Resources res = context.getResources(); 284 if (LauncherApplication.isScreenLarge()) { 285 // Determine number of rows/columns dynamically 286 // TODO: This code currently fails on tablets with an aspect ratio < 1.3. 287 // Around that ratio we should make cells the same size in portrait and 288 // landscape 289 TypedArray actionBarSizeTypedArray = 290 context.obtainStyledAttributes(new int[] { android.R.attr.actionBarSize }); 291 final float actionBarHeight = actionBarSizeTypedArray.getDimension(0, 0f); 292 final float systemBarHeight = res.getDimension(R.dimen.status_bar_height); 293 final float smallestScreenDim = res.getConfiguration().smallestScreenWidthDp; 294 295 cellCountX = 1; 296 while (CellLayout.widthInPortrait(res, cellCountX + 1) <= smallestScreenDim) { 297 cellCountX++; 298 } 299 300 cellCountY = 1; 301 while (actionBarHeight + CellLayout.heightInLandscape(res, cellCountY + 1) 302 <= smallestScreenDim - systemBarHeight) { 303 cellCountY++; 304 } 305 } 306 307 mSpringLoadedShrinkFactor = 308 res.getInteger(R.integer.config_workspaceSpringLoadShrinkPercentage) / 100.0f; 309 310 // if the value is manually specified, use that instead 311 cellCountX = a.getInt(R.styleable.Workspace_cellCountX, cellCountX); 312 cellCountY = a.getInt(R.styleable.Workspace_cellCountY, cellCountY); 313 mDefaultPage = a.getInt(R.styleable.Workspace_defaultScreen, 1); 314 a.recycle(); 315 316 LauncherModel.updateWorkspaceLayoutCells(cellCountX, cellCountY); 317 setHapticFeedbackEnabled(false); 318 319 initWorkspace(); 320 321 // Disable multitouch across the workspace/all apps/customize tray 322 setMotionEventSplittingEnabled(true); 323 } 324 325 public void onDragStart(DragSource source, Object info, int dragAction) { 326 mIsDragOccuring = true; 327 updateChildrenLayersEnabled(); 328 mLauncher.lockScreenOrientation(); 329 } 330 331 public void onDragEnd() { 332 mIsDragOccuring = false; 333 updateChildrenLayersEnabled(); 334 mLauncher.unlockScreenOrientation(); 335 } 336 337 /** 338 * Initializes various states for this workspace. 339 */ 340 protected void initWorkspace() { 341 Context context = getContext(); 342 mCurrentPage = mDefaultPage; 343 Launcher.setScreen(mCurrentPage); 344 LauncherApplication app = (LauncherApplication)context.getApplicationContext(); 345 mIconCache = app.getIconCache(); 346 mExternalDragOutlinePaint.setAntiAlias(true); 347 setWillNotDraw(false); 348 349 try { 350 final Resources res = getResources(); 351 mBackground = res.getDrawable(R.drawable.apps_customize_bg); 352 } catch (Resources.NotFoundException e) { 353 // In this case, we will skip drawing background protection 354 } 355 356 mUnshrinkAnimationListener = new AnimatorListenerAdapter() { 357 @Override 358 public void onAnimationStart(Animator animation) { 359 mIsSwitchingState = true; 360 } 361 362 @Override 363 public void onAnimationEnd(Animator animation) { 364 mIsSwitchingState = false; 365 mSyncWallpaperOffsetWithScroll = true; 366 mWallpaperOffset.setOverrideHorizontalCatchupConstant(false); 367 mAnimator = null; 368 updateChildrenLayersEnabled(); 369 } 370 }; 371 mShrinkAnimationListener = new AnimatorListenerAdapter() { 372 @Override 373 public void onAnimationStart(Animator animation) { 374 mIsSwitchingState = true; 375 } 376 @Override 377 public void onAnimationEnd(Animator animation) { 378 mIsSwitchingState = false; 379 mWallpaperOffset.setOverrideHorizontalCatchupConstant(false); 380 mAnimator = null; 381 } 382 }; 383 mSnapVelocity = 600; 384 mWallpaperOffset = new WallpaperOffsetInterpolator(); 385 } 386 387 @Override 388 protected int getScrollMode() { 389 return SmoothPagedView.X_LARGE_MODE; 390 } 391 392 private void onAddView(View child) { 393 if (!(child instanceof CellLayout)) { 394 throw new IllegalArgumentException("A Workspace can only have CellLayout children."); 395 } 396 CellLayout cl = ((CellLayout) child); 397 cl.setOnInterceptTouchListener(this); 398 cl.setClickable(true); 399 cl.enableHardwareLayers(); 400 } 401 402 @Override 403 public void addView(View child, int index, LayoutParams params) { 404 onAddView(child); 405 super.addView(child, index, params); 406 } 407 408 @Override 409 public void addView(View child) { 410 onAddView(child); 411 super.addView(child); 412 } 413 414 @Override 415 public void addView(View child, int index) { 416 onAddView(child); 417 super.addView(child, index); 418 } 419 420 @Override 421 public void addView(View child, int width, int height) { 422 onAddView(child); 423 super.addView(child, width, height); 424 } 425 426 @Override 427 public void addView(View child, LayoutParams params) { 428 onAddView(child); 429 super.addView(child, params); 430 } 431 432 /** 433 * @return The open folder on the current screen, or null if there is none 434 */ 435 Folder getOpenFolder() { 436 DragLayer dragLayer = mLauncher.getDragLayer(); 437 int count = dragLayer.getChildCount(); 438 for (int i = 0; i < count; i++) { 439 View child = dragLayer.getChildAt(i); 440 if (child instanceof Folder) { 441 Folder folder = (Folder) child; 442 if (folder.getInfo().opened) 443 return folder; 444 } 445 } 446 return null; 447 } 448 449 boolean isTouchActive() { 450 return mTouchState != TOUCH_STATE_REST; 451 } 452 453 /** 454 * Adds the specified child in the specified screen. The position and dimension of 455 * the child are defined by x, y, spanX and spanY. 456 * 457 * @param child The child to add in one of the workspace's screens. 458 * @param screen The screen in which to add the child. 459 * @param x The X position of the child in the screen's grid. 460 * @param y The Y position of the child in the screen's grid. 461 * @param spanX The number of cells spanned horizontally by the child. 462 * @param spanY The number of cells spanned vertically by the child. 463 */ 464 void addInScreen(View child, long container, int screen, int x, int y, int spanX, int spanY) { 465 addInScreen(child, container, screen, x, y, spanX, spanY, false); 466 } 467 468 /** 469 * Adds the specified child in the specified screen. The position and dimension of 470 * the child are defined by x, y, spanX and spanY. 471 * 472 * @param child The child to add in one of the workspace's screens. 473 * @param screen The screen in which to add the child. 474 * @param x The X position of the child in the screen's grid. 475 * @param y The Y position of the child in the screen's grid. 476 * @param spanX The number of cells spanned horizontally by the child. 477 * @param spanY The number of cells spanned vertically by the child. 478 * @param insert When true, the child is inserted at the beginning of the children list. 479 */ 480 void addInScreen(View child, long container, int screen, int x, int y, int spanX, int spanY, 481 boolean insert) { 482 if (container == LauncherSettings.Favorites.CONTAINER_DESKTOP) { 483 if (screen < 0 || screen >= getChildCount()) { 484 Log.e(TAG, "The screen must be >= 0 and < " + getChildCount() 485 + " (was " + screen + "); skipping child"); 486 return; 487 } 488 } 489 490 final CellLayout layout; 491 if (container == LauncherSettings.Favorites.CONTAINER_HOTSEAT) { 492 layout = mLauncher.getHotseat().getLayout(); 493 child.setOnKeyListener(null); 494 495 if (screen < 0) { 496 screen = mLauncher.getHotseat().getOrderInHotseat(x, y); 497 } else { 498 // Note: We do this to ensure that the hotseat is always laid out in the orientation 499 // of the hotseat in order regardless of which orientation they were added 500 x = mLauncher.getHotseat().getCellXFromOrder(screen); 501 y = mLauncher.getHotseat().getCellYFromOrder(screen); 502 } 503 } else { 504 layout = (CellLayout) getChildAt(screen); 505 child.setOnKeyListener(new BubbleTextViewKeyEventListener()); 506 } 507 508 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) child.getLayoutParams(); 509 if (lp == null) { 510 lp = new CellLayout.LayoutParams(x, y, spanX, spanY); 511 } else { 512 lp.cellX = x; 513 lp.cellY = y; 514 lp.cellHSpan = spanX; 515 lp.cellVSpan = spanY; 516 } 517 518 if (spanX < 0 && spanY < 0) { 519 lp.isLockedToGrid = false; 520 } 521 522 // Get the canonical child id to uniquely represent this view in this screen 523 int childId = LauncherModel.getCellLayoutChildId(container, screen, x, y, spanX, spanY); 524 boolean markCellsAsOccupied = !(child instanceof Folder); 525 if (!layout.addViewToCellLayout(child, insert ? 0 : -1, childId, lp, markCellsAsOccupied)) { 526 // TODO: This branch occurs when the workspace is adding views 527 // outside of the defined grid 528 // maybe we should be deleting these items from the LauncherModel? 529 Log.w(TAG, "Failed to add to item at (" + lp.cellX + "," + lp.cellY + ") to CellLayout"); 530 } 531 532 if (!(child instanceof Folder)) { 533 child.setHapticFeedbackEnabled(false); 534 child.setOnLongClickListener(mLongClickListener); 535 } 536 if (child instanceof DropTarget) { 537 mDragController.addDropTarget((DropTarget) child); 538 } 539 } 540 541 /** 542 * Check if the point (x, y) hits a given page. 543 */ 544 private boolean hitsPage(int index, float x, float y) { 545 final View page = getChildAt(index); 546 if (page != null) { 547 float[] localXY = { x, y }; 548 mapPointFromSelfToChild(page, localXY); 549 return (localXY[0] >= 0 && localXY[0] < page.getWidth() 550 && localXY[1] >= 0 && localXY[1] < page.getHeight()); 551 } 552 return false; 553 } 554 555 @Override 556 protected boolean hitsPreviousPage(float x, float y) { 557 // mNextPage is set to INVALID_PAGE whenever we are stationary. 558 // Calculating "next page" this way ensures that you scroll to whatever page you tap on 559 final int current = (mNextPage == INVALID_PAGE) ? mCurrentPage : mNextPage; 560 return hitsPage(current - 1, x, y); 561 } 562 563 @Override 564 protected boolean hitsNextPage(float x, float y) { 565 // mNextPage is set to INVALID_PAGE whenever we are stationary. 566 // Calculating "next page" this way ensures that you scroll to whatever page you tap on 567 final int current = (mNextPage == INVALID_PAGE) ? mCurrentPage : mNextPage; 568 return hitsPage(current + 1, x, y); 569 } 570 571 /** 572 * Called directly from a CellLayout (not by the framework), after we've been added as a 573 * listener via setOnInterceptTouchEventListener(). This allows us to tell the CellLayout 574 * that it should intercept touch events, which is not something that is normally supported. 575 */ 576 @Override 577 public boolean onTouch(View v, MotionEvent event) { 578 return (isSmall() || mIsSwitchingState); 579 } 580 581 public boolean isSwitchingState() { 582 return mIsSwitchingState; 583 } 584 585 protected void onWindowVisibilityChanged (int visibility) { 586 mLauncher.onWindowVisibilityChanged(visibility); 587 } 588 589 @Override 590 public boolean dispatchUnhandledMove(View focused, int direction) { 591 if (isSmall() || mIsSwitchingState) { 592 // when the home screens are shrunken, shouldn't allow side-scrolling 593 return false; 594 } 595 return super.dispatchUnhandledMove(focused, direction); 596 } 597 598 @Override 599 public boolean onInterceptTouchEvent(MotionEvent ev) { 600 if (ev.getAction() == MotionEvent.ACTION_DOWN) { 601 mXDown = ev.getX(); 602 mYDown = ev.getY(); 603 } 604 605 return super.onInterceptTouchEvent(ev); 606 } 607 608 @Override 609 protected void determineScrollingStart(MotionEvent ev) { 610 if (!isSmall() && !mIsSwitchingState) { 611 float deltaX = Math.abs(ev.getX() - mXDown); 612 float deltaY = Math.abs(ev.getY() - mYDown); 613 614 if (Float.compare(deltaX, 0f) == 0) return; 615 616 float slope = deltaY / deltaX; 617 float theta = (float) Math.atan(slope); 618 619 if (deltaX > mTouchSlop || deltaY > mTouchSlop) { 620 cancelCurrentPageLongPress(); 621 } 622 623 if (theta > MAX_SWIPE_ANGLE) { 624 // Above MAX_SWIPE_ANGLE, we don't want to ever start scrolling the workspace 625 return; 626 } else if (theta > START_DAMPING_TOUCH_SLOP_ANGLE) { 627 // Above START_DAMPING_TOUCH_SLOP_ANGLE and below MAX_SWIPE_ANGLE, we want to 628 // increase the touch slop to make it harder to begin scrolling the workspace. This 629 // results in vertically scrolling widgets to more easily. The higher the angle, the 630 // more we increase touch slop. 631 theta -= START_DAMPING_TOUCH_SLOP_ANGLE; 632 float extraRatio = (float) 633 Math.sqrt((theta / (MAX_SWIPE_ANGLE - START_DAMPING_TOUCH_SLOP_ANGLE))); 634 super.determineScrollingStart(ev, 1 + TOUCH_SLOP_DAMPING_FACTOR * extraRatio); 635 } else { 636 // Below START_DAMPING_TOUCH_SLOP_ANGLE, we don't do anything special 637 super.determineScrollingStart(ev); 638 } 639 } 640 } 641 642 @Override 643 protected boolean isScrollingIndicatorEnabled() { 644 return mState != State.SPRING_LOADED; 645 } 646 647 protected void onPageBeginMoving() { 648 super.onPageBeginMoving(); 649 650 if (isHardwareAccelerated()) { 651 updateChildrenLayersEnabled(); 652 } else { 653 if (mNextPage != INVALID_PAGE) { 654 // we're snapping to a particular screen 655 enableChildrenCache(mCurrentPage, mNextPage); 656 } else { 657 // this is when user is actively dragging a particular screen, they might 658 // swipe it either left or right (but we won't advance by more than one screen) 659 enableChildrenCache(mCurrentPage - 1, mCurrentPage + 1); 660 } 661 } 662 663 // Only show page outlines as we pan if we are on large screen 664 if (LauncherApplication.isScreenLarge()) { 665 showOutlines(); 666 } 667 } 668 669 protected void onPageEndMoving() { 670 super.onPageEndMoving(); 671 672 if (isHardwareAccelerated()) { 673 updateChildrenLayersEnabled(); 674 } else { 675 clearChildrenCache(); 676 } 677 678 // Hide the outlines, as long as we're not dragging 679 if (!mDragController.dragging()) { 680 // Only hide page outlines as we pan if we are on large screen 681 if (LauncherApplication.isScreenLarge()) { 682 hideOutlines(); 683 } 684 } 685 mOverScrollMaxBackgroundAlpha = 0.0f; 686 mOverScrollPageIndex = -1; 687 688 if (mDelayedResizeRunnable != null) { 689 mDelayedResizeRunnable.run(); 690 mDelayedResizeRunnable = null; 691 } 692 } 693 694 @Override 695 protected void notifyPageSwitchListener() { 696 super.notifyPageSwitchListener(); 697 Launcher.setScreen(mCurrentPage); 698 }; 699 700 // As a ratio of screen height, the total distance we want the parallax effect to span 701 // vertically 702 private float wallpaperTravelToScreenHeightRatio(int width, int height) { 703 return 1.1f; 704 } 705 706 // As a ratio of screen height, the total distance we want the parallax effect to span 707 // horizontally 708 private float wallpaperTravelToScreenWidthRatio(int width, int height) { 709 float aspectRatio = width / (float) height; 710 711 // At an aspect ratio of 16/10, the wallpaper parallax effect should span 1.5 * screen width 712 // At an aspect ratio of 10/16, the wallpaper parallax effect should span 1.2 * screen width 713 // We will use these two data points to extrapolate how much the wallpaper parallax effect 714 // to span (ie travel) at any aspect ratio: 715 716 final float ASPECT_RATIO_LANDSCAPE = 16/10f; 717 final float ASPECT_RATIO_PORTRAIT = 10/16f; 718 final float WALLPAPER_WIDTH_TO_SCREEN_RATIO_LANDSCAPE = 1.5f; 719 final float WALLPAPER_WIDTH_TO_SCREEN_RATIO_PORTRAIT = 1.2f; 720 721 // To find out the desired width at different aspect ratios, we use the following two 722 // formulas, where the coefficient on x is the aspect ratio (width/height): 723 // (16/10)x + y = 1.5 724 // (10/16)x + y = 1.2 725 // We solve for x and y and end up with a final formula: 726 final float x = 727 (WALLPAPER_WIDTH_TO_SCREEN_RATIO_LANDSCAPE - WALLPAPER_WIDTH_TO_SCREEN_RATIO_PORTRAIT) / 728 (ASPECT_RATIO_LANDSCAPE - ASPECT_RATIO_PORTRAIT); 729 final float y = WALLPAPER_WIDTH_TO_SCREEN_RATIO_PORTRAIT - x * ASPECT_RATIO_PORTRAIT; 730 return x * aspectRatio + y; 731 } 732 733 // The range of scroll values for Workspace 734 private int getScrollRange() { 735 return getChildOffset(getChildCount() - 1) - getChildOffset(0); 736 } 737 738 protected void setWallpaperDimension() { 739 Display display = mLauncher.getWindowManager().getDefaultDisplay(); 740 DisplayMetrics displayMetrics = new DisplayMetrics(); 741 display.getRealMetrics(displayMetrics); 742 final int maxDim = Math.max(displayMetrics.widthPixels, displayMetrics.heightPixels); 743 final int minDim = Math.min(displayMetrics.widthPixels, displayMetrics.heightPixels); 744 745 // We need to ensure that there is enough extra space in the wallpaper for the intended 746 // parallax effects 747 mWallpaperWidth = (int) (maxDim * wallpaperTravelToScreenWidthRatio(maxDim, minDim)); 748 mWallpaperHeight = (int)(maxDim * wallpaperTravelToScreenHeightRatio(maxDim, minDim)); 749 new Thread("setWallpaperDimension") { 750 public void run() { 751 mWallpaperManager.suggestDesiredDimensions(mWallpaperWidth, mWallpaperHeight); 752 } 753 }.start(); 754 } 755 756 public void setVerticalWallpaperOffset(float offset) { 757 mWallpaperOffset.setFinalY(offset); 758 } 759 public float getVerticalWallpaperOffset() { 760 return mWallpaperOffset.getCurrY(); 761 } 762 public void setHorizontalWallpaperOffset(float offset) { 763 mWallpaperOffset.setFinalX(offset); 764 } 765 public float getHorizontalWallpaperOffset() { 766 return mWallpaperOffset.getCurrX(); 767 } 768 769 private float wallpaperOffsetForCurrentScroll() { 770 Display display = mLauncher.getWindowManager().getDefaultDisplay(); 771 final boolean isStaticWallpaper = (mWallpaperManager.getWallpaperInfo() == null); 772 // The wallpaper travel width is how far, from left to right, the wallpaper will move 773 // at this orientation (for example, in portrait mode we don't move all the way to the 774 // edges of the wallpaper, or otherwise the parallax effect would be too strong) 775 int wallpaperTravelWidth = (int) (display.getWidth() * 776 wallpaperTravelToScreenWidthRatio(display.getWidth(), display.getHeight())); 777 if (!isStaticWallpaper) { 778 wallpaperTravelWidth = mWallpaperWidth; 779 } 780 781 // Set wallpaper offset steps (1 / (number of screens - 1)) 782 // We have 3 vertical offset states (centered, and then top/bottom aligned 783 // for all apps/customize) 784 mWallpaperManager.setWallpaperOffsetSteps(1.0f / (getChildCount() - 1), 1.0f / (3 - 1)); 785 786 int scrollRange = getScrollRange(); 787 float scrollProgressOffset = 0; 788 789 // Account for overscroll: you only see the absolute edge of the wallpaper if 790 // you overscroll as far as you can in landscape mode. Only do this for static wallpapers 791 // because live wallpapers (and probably 3rd party wallpaper providers) rely on the offset 792 // being even intervals from 0 to 1 (eg [0, 0.25, 0.5, 0.75, 1]) 793 if (isStaticWallpaper) { 794 int overscrollOffset = (int) (maxOverScroll() * display.getWidth()); 795 scrollProgressOffset += overscrollOffset / (float) getScrollRange(); 796 scrollRange += 2 * overscrollOffset; 797 } 798 799 float scrollProgress = 800 mScrollX / (float) scrollRange + scrollProgressOffset; 801 float offsetInDips = wallpaperTravelWidth * scrollProgress + 802 (mWallpaperWidth - wallpaperTravelWidth) / 2; // center it 803 float offset = offsetInDips / (float) mWallpaperWidth; 804 return offset; 805 } 806 private void syncWallpaperOffsetWithScroll() { 807 final boolean enableWallpaperEffects = isHardwareAccelerated(); 808 if (enableWallpaperEffects) { 809 mWallpaperOffset.setFinalX(wallpaperOffsetForCurrentScroll()); 810 } 811 } 812 813 public void updateWallpaperOffsetImmediately() { 814 mUpdateWallpaperOffsetImmediately = true; 815 } 816 817 private void updateWallpaperOffsets() { 818 boolean updateNow = false; 819 boolean keepUpdating = true; 820 if (mUpdateWallpaperOffsetImmediately) { 821 updateNow = true; 822 keepUpdating = false; 823 mWallpaperOffset.jumpToFinal(); 824 mUpdateWallpaperOffsetImmediately = false; 825 } else { 826 updateNow = keepUpdating = mWallpaperOffset.computeScrollOffset(); 827 } 828 if (updateNow) { 829 if (mWindowToken != null) { 830 mWallpaperManager.setWallpaperOffsets(mWindowToken, 831 mWallpaperOffset.getCurrX(), mWallpaperOffset.getCurrY()); 832 } 833 } 834 if (keepUpdating) { 835 fastInvalidate(); 836 } 837 } 838 839 class WallpaperOffsetInterpolator { 840 float mFinalHorizontalWallpaperOffset = 0.0f; 841 float mFinalVerticalWallpaperOffset = 0.5f; 842 float mHorizontalWallpaperOffset = 0.0f; 843 float mVerticalWallpaperOffset = 0.5f; 844 long mLastWallpaperOffsetUpdateTime; 845 boolean mIsMovingFast; 846 boolean mOverrideHorizontalCatchupConstant; 847 float mHorizontalCatchupConstant = 0.35f; 848 float mVerticalCatchupConstant = 0.35f; 849 850 public WallpaperOffsetInterpolator() { 851 } 852 853 public void setOverrideHorizontalCatchupConstant(boolean override) { 854 mOverrideHorizontalCatchupConstant = override; 855 } 856 857 public void setHorizontalCatchupConstant(float f) { 858 mHorizontalCatchupConstant = f; 859 } 860 861 public void setVerticalCatchupConstant(float f) { 862 mVerticalCatchupConstant = f; 863 } 864 865 public boolean computeScrollOffset() { 866 if (Float.compare(mHorizontalWallpaperOffset, mFinalHorizontalWallpaperOffset) == 0 && 867 Float.compare(mVerticalWallpaperOffset, mFinalVerticalWallpaperOffset) == 0) { 868 mIsMovingFast = false; 869 return false; 870 } 871 Display display = mLauncher.getWindowManager().getDefaultDisplay(); 872 boolean isLandscape = display.getWidth() > display.getHeight(); 873 874 long currentTime = System.currentTimeMillis(); 875 long timeSinceLastUpdate = currentTime - mLastWallpaperOffsetUpdateTime; 876 timeSinceLastUpdate = Math.min((long) (1000/30f), timeSinceLastUpdate); 877 timeSinceLastUpdate = Math.max(1L, timeSinceLastUpdate); 878 879 float xdiff = Math.abs(mFinalHorizontalWallpaperOffset - mHorizontalWallpaperOffset); 880 if (!mIsMovingFast && xdiff > 0.07) { 881 mIsMovingFast = true; 882 } 883 884 float fractionToCatchUpIn1MsHorizontal; 885 if (mOverrideHorizontalCatchupConstant) { 886 fractionToCatchUpIn1MsHorizontal = mHorizontalCatchupConstant; 887 } else if (mIsMovingFast) { 888 fractionToCatchUpIn1MsHorizontal = isLandscape ? 0.5f : 0.75f; 889 } else { 890 // slow 891 fractionToCatchUpIn1MsHorizontal = isLandscape ? 0.27f : 0.5f; 892 } 893 float fractionToCatchUpIn1MsVertical = mVerticalCatchupConstant; 894 895 fractionToCatchUpIn1MsHorizontal /= 33f; 896 fractionToCatchUpIn1MsVertical /= 33f; 897 898 final float UPDATE_THRESHOLD = 0.00001f; 899 float hOffsetDelta = mFinalHorizontalWallpaperOffset - mHorizontalWallpaperOffset; 900 float vOffsetDelta = mFinalVerticalWallpaperOffset - mVerticalWallpaperOffset; 901 boolean jumpToFinalValue = Math.abs(hOffsetDelta) < UPDATE_THRESHOLD && 902 Math.abs(vOffsetDelta) < UPDATE_THRESHOLD; 903 if (jumpToFinalValue) { 904 mHorizontalWallpaperOffset = mFinalHorizontalWallpaperOffset; 905 mVerticalWallpaperOffset = mFinalVerticalWallpaperOffset; 906 } else { 907 float percentToCatchUpVertical = 908 Math.min(1.0f, timeSinceLastUpdate * fractionToCatchUpIn1MsVertical); 909 float percentToCatchUpHorizontal = 910 Math.min(1.0f, timeSinceLastUpdate * fractionToCatchUpIn1MsHorizontal); 911 mHorizontalWallpaperOffset += percentToCatchUpHorizontal * hOffsetDelta; 912 mVerticalWallpaperOffset += percentToCatchUpVertical * vOffsetDelta; 913 } 914 915 mLastWallpaperOffsetUpdateTime = System.currentTimeMillis(); 916 return true; 917 } 918 919 public float getCurrX() { 920 return mHorizontalWallpaperOffset; 921 } 922 923 public float getFinalX() { 924 return mFinalHorizontalWallpaperOffset; 925 } 926 927 public float getCurrY() { 928 return mVerticalWallpaperOffset; 929 } 930 931 public float getFinalY() { 932 return mFinalVerticalWallpaperOffset; 933 } 934 935 public void setFinalX(float x) { 936 mFinalHorizontalWallpaperOffset = Math.max(0f, Math.min(x, 1.0f)); 937 } 938 939 public void setFinalY(float y) { 940 mFinalVerticalWallpaperOffset = Math.max(0f, Math.min(y, 1.0f)); 941 } 942 943 public void jumpToFinal() { 944 mHorizontalWallpaperOffset = mFinalHorizontalWallpaperOffset; 945 mVerticalWallpaperOffset = mFinalVerticalWallpaperOffset; 946 } 947 } 948 949 @Override 950 public void computeScroll() { 951 super.computeScroll(); 952 if (mSyncWallpaperOffsetWithScroll) { 953 syncWallpaperOffsetWithScroll(); 954 } 955 } 956 957 void showOutlines() { 958 if (!isSmall() && !mIsSwitchingState) { 959 if (mChildrenOutlineFadeOutAnimation != null) mChildrenOutlineFadeOutAnimation.cancel(); 960 if (mChildrenOutlineFadeInAnimation != null) mChildrenOutlineFadeInAnimation.cancel(); 961 mChildrenOutlineFadeInAnimation = ObjectAnimator.ofFloat(this, "childrenOutlineAlpha", 1.0f); 962 mChildrenOutlineFadeInAnimation.setDuration(CHILDREN_OUTLINE_FADE_IN_DURATION); 963 mChildrenOutlineFadeInAnimation.start(); 964 } 965 } 966 967 void hideOutlines() { 968 if (!isSmall() && !mIsSwitchingState) { 969 if (mChildrenOutlineFadeInAnimation != null) mChildrenOutlineFadeInAnimation.cancel(); 970 if (mChildrenOutlineFadeOutAnimation != null) mChildrenOutlineFadeOutAnimation.cancel(); 971 mChildrenOutlineFadeOutAnimation = ObjectAnimator.ofFloat(this, "childrenOutlineAlpha", 0.0f); 972 mChildrenOutlineFadeOutAnimation.setDuration(CHILDREN_OUTLINE_FADE_OUT_DURATION); 973 mChildrenOutlineFadeOutAnimation.setStartDelay(CHILDREN_OUTLINE_FADE_OUT_DELAY); 974 mChildrenOutlineFadeOutAnimation.start(); 975 } 976 } 977 978 public void showOutlinesTemporarily() { 979 if (!mIsPageMoving && !isTouchActive()) { 980 snapToPage(mCurrentPage); 981 } 982 } 983 984 public void setChildrenOutlineAlpha(float alpha) { 985 mChildrenOutlineAlpha = alpha; 986 for (int i = 0; i < getChildCount(); i++) { 987 CellLayout cl = (CellLayout) getChildAt(i); 988 cl.setBackgroundAlpha(alpha); 989 } 990 } 991 992 public float getChildrenOutlineAlpha() { 993 return mChildrenOutlineAlpha; 994 } 995 996 void disableBackground() { 997 mDrawBackground = false; 998 } 999 void enableBackground() { 1000 mDrawBackground = true; 1001 } 1002 1003 private void animateBackgroundGradient(float finalAlpha, boolean animated) { 1004 if (mBackground == null) return; 1005 if (mBackgroundFadeInAnimation != null) { 1006 mBackgroundFadeInAnimation.cancel(); 1007 mBackgroundFadeInAnimation = null; 1008 } 1009 if (mBackgroundFadeOutAnimation != null) { 1010 mBackgroundFadeOutAnimation.cancel(); 1011 mBackgroundFadeOutAnimation = null; 1012 } 1013 float startAlpha = getBackgroundAlpha(); 1014 if (finalAlpha != startAlpha) { 1015 if (animated) { 1016 mBackgroundFadeOutAnimation = ValueAnimator.ofFloat(startAlpha, finalAlpha); 1017 mBackgroundFadeOutAnimation.addUpdateListener(new AnimatorUpdateListener() { 1018 public void onAnimationUpdate(ValueAnimator animation) { 1019 setBackgroundAlpha(((Float) animation.getAnimatedValue()).floatValue()); 1020 } 1021 }); 1022 mBackgroundFadeOutAnimation.setInterpolator(new DecelerateInterpolator(1.5f)); 1023 mBackgroundFadeOutAnimation.setDuration(BACKGROUND_FADE_OUT_DURATION); 1024 mBackgroundFadeOutAnimation.start(); 1025 } else { 1026 setBackgroundAlpha(finalAlpha); 1027 } 1028 } 1029 } 1030 1031 public void setBackgroundAlpha(float alpha) { 1032 if (alpha != mBackgroundAlpha) { 1033 mBackgroundAlpha = alpha; 1034 invalidate(); 1035 } 1036 } 1037 1038 public float getBackgroundAlpha() { 1039 return mBackgroundAlpha; 1040 } 1041 1042 /** 1043 * Due to 3D transformations, if two CellLayouts are theoretically touching each other, 1044 * on the xy plane, when one is rotated along the y-axis, the gap between them is perceived 1045 * as being larger. This method computes what offset the rotated view should be translated 1046 * in order to minimize this perceived gap. 1047 * @param degrees Angle of the view 1048 * @param width Width of the view 1049 * @param height Height of the view 1050 * @return Offset to be used in a View.setTranslationX() call 1051 */ 1052 private float getOffsetXForRotation(float degrees, int width, int height) { 1053 mMatrix.reset(); 1054 mCamera.save(); 1055 mCamera.rotateY(Math.abs(degrees)); 1056 mCamera.getMatrix(mMatrix); 1057 mCamera.restore(); 1058 1059 mMatrix.preTranslate(-width * 0.5f, -height * 0.5f); 1060 mMatrix.postTranslate(width * 0.5f, height * 0.5f); 1061 mTempFloat2[0] = width; 1062 mTempFloat2[1] = height; 1063 mMatrix.mapPoints(mTempFloat2); 1064 return (width - mTempFloat2[0]) * (degrees > 0.0f ? 1.0f : -1.0f); 1065 } 1066 1067 float backgroundAlphaInterpolator(float r) { 1068 float pivotA = 0.1f; 1069 float pivotB = 0.4f; 1070 if (r < pivotA) { 1071 return 0; 1072 } else if (r > pivotB) { 1073 return 1.0f; 1074 } else { 1075 return (r - pivotA)/(pivotB - pivotA); 1076 } 1077 } 1078 1079 float overScrollBackgroundAlphaInterpolator(float r) { 1080 float threshold = 0.08f; 1081 1082 if (r > mOverScrollMaxBackgroundAlpha) { 1083 mOverScrollMaxBackgroundAlpha = r; 1084 } else if (r < mOverScrollMaxBackgroundAlpha) { 1085 r = mOverScrollMaxBackgroundAlpha; 1086 } 1087 1088 return Math.min(r / threshold, 1.0f); 1089 } 1090 1091 @Override 1092 protected void screenScrolled(int screenCenter) { 1093 super.screenScrolled(screenCenter); 1094 1095 // If the screen is not xlarge, then don't rotate the CellLayouts 1096 // NOTE: If we don't update the side pages alpha, then we should not hide the side pages. 1097 // see unshrink(). 1098 if (!LauncherApplication.isScreenLarge()) return; 1099 1100 final int halfScreenSize = getMeasuredWidth() / 2; 1101 1102 for (int i = 0; i < getChildCount(); i++) { 1103 CellLayout cl = (CellLayout) getChildAt(i); 1104 if (cl != null) { 1105 int totalDistance = getScaledMeasuredWidth(cl) + mPageSpacing; 1106 int delta = screenCenter - (getChildOffset(i) - 1107 getRelativeChildOffset(i) + halfScreenSize); 1108 1109 float scrollProgress = delta / (totalDistance * 1.0f); 1110 scrollProgress = Math.min(scrollProgress, 1.0f); 1111 scrollProgress = Math.max(scrollProgress, -1.0f); 1112 1113 if (mState != State.SPRING_LOADED) { 1114 // If the current page (i) is being overscrolled, we use a different 1115 // set of rules for setting the background alpha multiplier. 1116 if ((mScrollX < 0 && i == 0) || (mScrollX > mMaxScrollX && 1117 i == getChildCount() -1 )) { 1118 cl.setBackgroundAlphaMultiplier( 1119 overScrollBackgroundAlphaInterpolator(Math.abs(scrollProgress))); 1120 mOverScrollPageIndex = i; 1121 } else if (mOverScrollPageIndex != i) { 1122 cl.setBackgroundAlphaMultiplier( 1123 backgroundAlphaInterpolator(Math.abs(scrollProgress))); 1124 } 1125 } 1126 1127 float rotation = WORKSPACE_ROTATION * scrollProgress; 1128 float translationX = getOffsetXForRotation(rotation, cl.getWidth(), cl.getHeight()); 1129 cl.setTranslationX(translationX); 1130 1131 cl.setRotationY(rotation); 1132 } 1133 } 1134 } 1135 1136 protected void onAttachedToWindow() { 1137 super.onAttachedToWindow(); 1138 mWindowToken = getWindowToken(); 1139 computeScroll(); 1140 mDragController.setWindowToken(mWindowToken); 1141 } 1142 1143 protected void onDetachedFromWindow() { 1144 mWindowToken = null; 1145 } 1146 1147 @Override 1148 protected void onLayout(boolean changed, int left, int top, int right, int bottom) { 1149 if (mFirstLayout && mCurrentPage >= 0 && mCurrentPage < getChildCount()) { 1150 mUpdateWallpaperOffsetImmediately = true; 1151 } 1152 super.onLayout(changed, left, top, right, bottom); 1153 1154 // if shrinkToBottom() is called on initialization, it has to be deferred 1155 // until after the first call to onLayout so that it has the correct width 1156 if (mSwitchStateAfterFirstLayout) { 1157 mSwitchStateAfterFirstLayout = false; 1158 // shrink can trigger a synchronous onLayout call, so we 1159 // post this to avoid a stack overflow / tangled onLayout calls 1160 post(new Runnable() { 1161 public void run() { 1162 shrink(mStateAfterFirstLayout, false); 1163 } 1164 }); 1165 } 1166 } 1167 1168 @Override 1169 protected void onDraw(Canvas canvas) { 1170 updateWallpaperOffsets(); 1171 1172 // Draw the background gradient if necessary 1173 if (mBackground != null && mBackgroundAlpha > 0.0f && mDrawBackground) { 1174 int alpha = (int) (mBackgroundAlpha * 255); 1175 mBackground.setAlpha(alpha); 1176 mBackground.setBounds(mScrollX, 0, mScrollX + getMeasuredWidth(), 1177 getMeasuredHeight()); 1178 mBackground.draw(canvas); 1179 } 1180 1181 super.onDraw(canvas); 1182 } 1183 1184 @Override 1185 protected void dispatchDraw(Canvas canvas) { 1186 super.dispatchDraw(canvas); 1187 1188 if (mInScrollArea && !LauncherApplication.isScreenLarge()) { 1189 final int width = getWidth(); 1190 final int height = getHeight(); 1191 final int pageHeight = getChildAt(0).getHeight(); 1192 1193 // This determines the height of the glowing edge: 90% of the page height 1194 final int padding = (int) ((height - pageHeight) * 0.5f + pageHeight * 0.1f); 1195 1196 final CellLayout leftPage = (CellLayout) getChildAt(mCurrentPage - 1); 1197 final CellLayout rightPage = (CellLayout) getChildAt(mCurrentPage + 1); 1198 1199 if (leftPage != null && leftPage.getIsDragOverlapping()) { 1200 final Drawable d = getResources().getDrawable(R.drawable.page_hover_left_holo); 1201 d.setBounds(mScrollX, padding, mScrollX + d.getIntrinsicWidth(), height - padding); 1202 d.draw(canvas); 1203 } else if (rightPage != null && rightPage.getIsDragOverlapping()) { 1204 final Drawable d = getResources().getDrawable(R.drawable.page_hover_right_holo); 1205 d.setBounds(mScrollX + width - d.getIntrinsicWidth(), padding, mScrollX + width, height - padding); 1206 d.draw(canvas); 1207 } 1208 } 1209 } 1210 1211 @Override 1212 protected boolean onRequestFocusInDescendants(int direction, Rect previouslyFocusedRect) { 1213 if (!mLauncher.isAllAppsVisible()) { 1214 final Folder openFolder = getOpenFolder(); 1215 if (openFolder != null) { 1216 return openFolder.requestFocus(direction, previouslyFocusedRect); 1217 } else { 1218 return super.onRequestFocusInDescendants(direction, previouslyFocusedRect); 1219 } 1220 } 1221 return false; 1222 } 1223 1224 @Override 1225 public int getDescendantFocusability() { 1226 if (isSmall()) { 1227 return ViewGroup.FOCUS_BLOCK_DESCENDANTS; 1228 } 1229 return super.getDescendantFocusability(); 1230 } 1231 1232 @Override 1233 public void addFocusables(ArrayList<View> views, int direction, int focusableMode) { 1234 if (!mLauncher.isAllAppsVisible()) { 1235 final Folder openFolder = getOpenFolder(); 1236 if (openFolder != null) { 1237 openFolder.addFocusables(views, direction); 1238 } else { 1239 super.addFocusables(views, direction, focusableMode); 1240 } 1241 } 1242 } 1243 1244 public boolean isSmall() { 1245 return mState == State.SMALL || mState == State.SPRING_LOADED; 1246 } 1247 1248 void enableChildrenCache(int fromPage, int toPage) { 1249 if (fromPage > toPage) { 1250 final int temp = fromPage; 1251 fromPage = toPage; 1252 toPage = temp; 1253 } 1254 1255 final int screenCount = getChildCount(); 1256 1257 fromPage = Math.max(fromPage, 0); 1258 toPage = Math.min(toPage, screenCount - 1); 1259 1260 for (int i = fromPage; i <= toPage; i++) { 1261 final CellLayout layout = (CellLayout) getChildAt(i); 1262 layout.setChildrenDrawnWithCacheEnabled(true); 1263 layout.setChildrenDrawingCacheEnabled(true); 1264 } 1265 } 1266 1267 void clearChildrenCache() { 1268 final int screenCount = getChildCount(); 1269 for (int i = 0; i < screenCount; i++) { 1270 final CellLayout layout = (CellLayout) getChildAt(i); 1271 layout.setChildrenDrawnWithCacheEnabled(false); 1272 // In software mode, we don't want the items to continue to be drawn into bitmaps 1273 if (!isHardwareAccelerated()) { 1274 layout.setChildrenDrawingCacheEnabled(false); 1275 } 1276 } 1277 } 1278 1279 private void updateChildrenLayersEnabled() { 1280 boolean small = 1281 isSmall() || mIsSwitchingState || mState == State.SPRING_LOADED; 1282 boolean dragging = mAnimatingViewIntoPlace || mIsDragOccuring; 1283 boolean enableChildrenLayers = small || dragging || isPageMoving(); 1284 1285 if (enableChildrenLayers != mChildrenLayersEnabled) { 1286 mChildrenLayersEnabled = enableChildrenLayers; 1287 for (int i = 0; i < getPageCount(); i++) { 1288 ((ViewGroup)getChildAt(i)).setChildrenLayersEnabled(enableChildrenLayers); 1289 } 1290 } 1291 } 1292 1293 @Override 1294 protected void onWallpaperTap(MotionEvent ev) { 1295 final int[] position = mTempCell; 1296 getLocationOnScreen(position); 1297 1298 int pointerIndex = ev.getActionIndex(); 1299 position[0] += (int) ev.getX(pointerIndex); 1300 position[1] += (int) ev.getY(pointerIndex); 1301 1302 mWallpaperManager.sendWallpaperCommand(getWindowToken(), 1303 ev.getAction() == MotionEvent.ACTION_UP 1304 ? WallpaperManager.COMMAND_TAP : WallpaperManager.COMMAND_SECONDARY_TAP, 1305 position[0], position[1], 0, null); 1306 } 1307 1308 private float getYScaleForScreen(int screen) { 1309 int x = Math.abs(screen - 2); 1310 1311 // TODO: This should be generalized for use with arbitrary rotation angles. 1312 switch(x) { 1313 case 0: return EXTRA_SCALE_FACTOR_0; 1314 case 1: return EXTRA_SCALE_FACTOR_1; 1315 case 2: return EXTRA_SCALE_FACTOR_2; 1316 } 1317 return 1.0f; 1318 } 1319 1320 public void shrink(State shrinkState) { 1321 shrink(shrinkState, true); 1322 } 1323 1324 // we use this to shrink the workspace for the all apps view and the customize view 1325 public void shrink(final State shrinkState, boolean animated) { 1326 if (mFirstLayout) { 1327 // (mFirstLayout == "first layout has not happened yet") 1328 // if we get a call to shrink() as part of our initialization (for example, if 1329 // Launcher is started in All Apps mode) then we need to wait for a layout call 1330 // to get our width so we can layout the mini-screen views correctly 1331 mSwitchStateAfterFirstLayout = true; 1332 mStateAfterFirstLayout = shrinkState; 1333 return; 1334 } 1335 1336 // Stop any scrolling, move to the current page right away 1337 setCurrentPage((mNextPage != INVALID_PAGE) ? mNextPage : mCurrentPage); 1338 1339 CellLayout currentPage = (CellLayout) getChildAt(mCurrentPage); 1340 if (currentPage == null) { 1341 Log.w(TAG, "currentPage is NULL! mCurrentPage " + mCurrentPage 1342 + " mNextPage " + mNextPage); 1343 return; 1344 } 1345 if (currentPage.getBackgroundAlphaMultiplier() < 1.0f) { 1346 currentPage.setBackgroundAlpha(0.0f); 1347 } 1348 currentPage.setBackgroundAlphaMultiplier(1.0f); 1349 1350 mState = shrinkState; 1351 updateChildrenLayersEnabled(); 1352 1353 // we intercept and reject all touch events when we're small, so be sure to reset the state 1354 mTouchState = TOUCH_STATE_REST; 1355 mActivePointerId = INVALID_POINTER; 1356 1357 final Resources res = getResources(); 1358 final int screenWidth = getWidth(); 1359 final int screenHeight = getHeight(); 1360 1361 // How much the workspace shrinks when we enter all apps or customization mode 1362 final float shrinkFactor = res.getInteger(R.integer.config_workspaceShrinkPercent) / 100.0f; 1363 1364 // Making the assumption that all pages have the same width as the 0th 1365 final int pageWidth = getChildAt(0).getMeasuredWidth(); 1366 final int pageHeight = getChildAt(0).getMeasuredHeight(); 1367 1368 final int scaledPageWidth = (int) (shrinkFactor * pageWidth); 1369 final int scaledPageHeight = (int) (shrinkFactor * pageHeight); 1370 final float extraScaledSpacing = res.getDimension(R.dimen.smallScreenExtraSpacing); 1371 1372 final int screenCount = getChildCount(); 1373 float totalWidth = screenCount * scaledPageWidth + (screenCount - 1) * extraScaledSpacing; 1374 1375 // We shrink and disappear to nothing 1376 boolean isPortrait = getMeasuredHeight() > getMeasuredWidth(); 1377 float y = screenHeight - scaledPageHeight - (isPortrait ? 1378 getResources().getDimension(R.dimen.allAppsSmallScreenVerticalMarginPortrait) : 1379 getResources().getDimension(R.dimen.allAppsSmallScreenVerticalMarginLandscape)); 1380 float finalAlpha = 0.0f; 1381 1382 int duration = res.getInteger(R.integer.config_appsCustomizeWorkspaceShrinkTime); 1383 1384 // We animate all the screens to the centered position in workspace 1385 // At the same time, the screens become greyed/dimmed 1386 1387 // newX is initialized to the left-most position of the centered screens 1388 float x = mScroller.getFinalX() + screenWidth / 2 - totalWidth / 2; 1389 1390 // We are going to scale about the center of the view, so we need to adjust the positions 1391 // of the views accordingly 1392 x -= (pageWidth - scaledPageWidth) / 2.0f; 1393 y -= (pageHeight - scaledPageHeight) / 2.0f; 1394 1395 if (mAnimator != null) { 1396 mAnimator.cancel(); 1397 } 1398 1399 mAnimator = new AnimatorSet(); 1400 // Workaround the AnimatorSet cancel bug... 1401 mUnshrinkAnimationEnabled = false; 1402 mShrinkAnimationEnabled = true; 1403 1404 initAnimationArrays(); 1405 1406 for (int i = 0; i < screenCount; i++) { 1407 final CellLayout cl = (CellLayout) getChildAt(i); 1408 1409 float rotation = (-i + 2) * WORKSPACE_ROTATION; 1410 float rotationScaleX = (float) (1.0f / Math.cos(Math.PI * rotation / 180.0f)); 1411 float rotationScaleY = getYScaleForScreen(i); 1412 1413 mOldAlphas[i] = cl.getAlpha(); 1414 mNewAlphas[i] = finalAlpha; 1415 if (animated && (mOldAlphas[i] != 0f || mNewAlphas[i] != 0f)) { 1416 // if the CellLayout will be visible during the animation, force building its 1417 // hardware layer immediately so we don't see a blip later in the animation 1418 cl.buildChildrenLayer(); 1419 } 1420 if (animated) { 1421 mOldTranslationXs[i] = cl.getX(); 1422 mOldTranslationYs[i] = cl.getY(); 1423 mOldScaleXs[i] = cl.getScaleX(); 1424 mOldScaleYs[i] = cl.getScaleY(); 1425 mOldBackgroundAlphas[i] = cl.getBackgroundAlpha(); 1426 mOldRotationYs[i] = cl.getRotationY(); 1427 mNewTranslationXs[i] = x; 1428 mNewTranslationYs[i] = y; 1429 mNewScaleXs[i] = shrinkFactor * rotationScaleX; 1430 mNewScaleYs[i] = shrinkFactor * rotationScaleY; 1431 mNewBackgroundAlphas[i] = finalAlpha; 1432 mNewRotationYs[i] = rotation; 1433 } else { 1434 cl.setX((int)x); 1435 cl.setY((int)y); 1436 cl.setScaleX(shrinkFactor * rotationScaleX); 1437 cl.setScaleY(shrinkFactor * rotationScaleY); 1438 cl.setBackgroundAlpha(finalAlpha); 1439 cl.setFastAlpha(finalAlpha); 1440 cl.setRotationY(rotation); 1441 mShrinkAnimationListener.onAnimationEnd(null); 1442 } 1443 // increment newX for the next screen 1444 x += scaledPageWidth + extraScaledSpacing; 1445 } 1446 1447 float wallpaperOffset = 0.5f; 1448 Display display = mLauncher.getWindowManager().getDefaultDisplay(); 1449 int wallpaperTravelHeight = (int) (display.getHeight() * 1450 wallpaperTravelToScreenHeightRatio(display.getWidth(), display.getHeight())); 1451 float offsetFromCenter = (wallpaperTravelHeight / (float) mWallpaperHeight) / 2f; 1452 boolean isLandscape = display.getWidth() > display.getHeight(); 1453 1454 // on phones, don't scroll the wallpaper horizontally or vertically when switching 1455 // to/from all apps 1456 final boolean enableWallpaperEffects = 1457 isHardwareAccelerated() && LauncherApplication.isScreenLarge(); 1458 if (enableWallpaperEffects) { 1459 switch (shrinkState) { 1460 // animating in 1461 case SPRING_LOADED: 1462 wallpaperOffset = 0.5f; 1463 mWallpaperOffset.setVerticalCatchupConstant(isLandscape ? 0.34f : 0.32f); 1464 break; 1465 case SMALL: 1466 // allapps 1467 wallpaperOffset = 0.5f - offsetFromCenter; 1468 mWallpaperOffset.setVerticalCatchupConstant(isLandscape ? 0.34f : 0.32f); 1469 break; 1470 } 1471 } 1472 1473 setLayoutScale(1.0f); 1474 if (animated) { 1475 if (enableWallpaperEffects) { 1476 mWallpaperOffset.setHorizontalCatchupConstant(0.46f); 1477 mWallpaperOffset.setOverrideHorizontalCatchupConstant(true); 1478 } 1479 1480 mSyncWallpaperOffsetWithScroll = false; 1481 1482 ValueAnimator animWithInterpolator = 1483 ValueAnimator.ofFloat(0f, 1f).setDuration(duration); 1484 animWithInterpolator.setInterpolator(mZoomOutInterpolator); 1485 1486 final float oldHorizontalWallpaperOffset = getHorizontalWallpaperOffset(); 1487 final float oldVerticalWallpaperOffset = getVerticalWallpaperOffset(); 1488 final float newHorizontalWallpaperOffset = 0.5f; 1489 final float newVerticalWallpaperOffset = wallpaperOffset; 1490 animWithInterpolator.addUpdateListener(new LauncherAnimatorUpdateListener() { 1491 public void onAnimationUpdate(float a, float b) { 1492 if (!mShrinkAnimationEnabled) return; 1493 mTransitionProgress = b; 1494 if (b == 0f) { 1495 // an optimization, and required for correct behavior. 1496 return; 1497 } 1498 invalidate(); 1499 if (enableWallpaperEffects) { 1500 setHorizontalWallpaperOffset( 1501 a * oldHorizontalWallpaperOffset + b * newHorizontalWallpaperOffset); 1502 setVerticalWallpaperOffset( 1503 a * oldVerticalWallpaperOffset + b * newVerticalWallpaperOffset); 1504 } 1505 for (int i = 0; i < screenCount; i++) { 1506 final CellLayout cl = (CellLayout) getChildAt(i); 1507 cl.fastInvalidate(); 1508 cl.setFastX(a * mOldTranslationXs[i] + b * mNewTranslationXs[i]); 1509 cl.setFastY(a * mOldTranslationYs[i] + b * mNewTranslationYs[i]); 1510 cl.setFastScaleX(a * mOldScaleXs[i] + b * mNewScaleXs[i]); 1511 cl.setFastScaleY(a * mOldScaleYs[i] + b * mNewScaleYs[i]); 1512 cl.setFastBackgroundAlpha( 1513 a * mOldBackgroundAlphas[i] + b * mNewBackgroundAlphas[i]); 1514 cl.setFastAlpha(a * mOldAlphas[i] + b * mNewAlphas[i]); 1515 cl.setFastRotationY(a * mOldRotationYs[i] + b * mNewRotationYs[i]); 1516 } 1517 } 1518 }); 1519 mAnimator.playTogether(animWithInterpolator); 1520 mAnimator.addListener(mShrinkAnimationListener); 1521 mAnimator.start(); 1522 } else if (enableWallpaperEffects) { 1523 setVerticalWallpaperOffset(wallpaperOffset); 1524 setHorizontalWallpaperOffset(0.5f); 1525 updateWallpaperOffsetImmediately(); 1526 } 1527 setChildrenDrawnWithCacheEnabled(true); 1528 } 1529 1530 @Override 1531 protected void updateAdjacentPagesAlpha() { 1532 if (!isSmall()) { 1533 super.updateAdjacentPagesAlpha(); 1534 } 1535 } 1536 1537 /* 1538 * This interpolator emulates the rate at which the perceived scale of an object changes 1539 * as its distance from a camera increases. When this interpolator is applied to a scale 1540 * animation on a view, it evokes the sense that the object is shrinking due to moving away 1541 * from the camera. 1542 */ 1543 static class ZInterpolator implements TimeInterpolator { 1544 private float focalLength; 1545 1546 public ZInterpolator(float foc) { 1547 focalLength = foc; 1548 } 1549 1550 public float getInterpolation(float input) { 1551 return (1.0f - focalLength / (focalLength + input)) / 1552 (1.0f - focalLength / (focalLength + 1.0f)); 1553 } 1554 } 1555 1556 /* 1557 * The exact reverse of ZInterpolator. 1558 */ 1559 static class InverseZInterpolator implements TimeInterpolator { 1560 private ZInterpolator zInterpolator; 1561 public InverseZInterpolator(float foc) { 1562 zInterpolator = new ZInterpolator(foc); 1563 } 1564 public float getInterpolation(float input) { 1565 return 1 - zInterpolator.getInterpolation(1 - input); 1566 } 1567 } 1568 1569 /* 1570 * ZInterpolator compounded with an ease-out. 1571 */ 1572 static class ZoomOutInterpolator implements TimeInterpolator { 1573 private final ZInterpolator zInterpolator = new ZInterpolator(0.2f); 1574 private final DecelerateInterpolator decelerate = new DecelerateInterpolator(1.8f); 1575 1576 public float getInterpolation(float input) { 1577 return decelerate.getInterpolation(zInterpolator.getInterpolation(input)); 1578 } 1579 } 1580 1581 /* 1582 * InvereZInterpolator compounded with an ease-out. 1583 */ 1584 static class ZoomInInterpolator implements TimeInterpolator { 1585 private final InverseZInterpolator inverseZInterpolator = new InverseZInterpolator(0.35f); 1586 private final DecelerateInterpolator decelerate = new DecelerateInterpolator(3.0f); 1587 1588 public float getInterpolation(float input) { 1589 return decelerate.getInterpolation(inverseZInterpolator.getInterpolation(input)); 1590 } 1591 } 1592 1593 private final ZoomOutInterpolator mZoomOutInterpolator = new ZoomOutInterpolator(); 1594 private final ZoomInInterpolator mZoomInInterpolator = new ZoomInInterpolator(); 1595 1596 /* 1597 * 1598 * We call these methods (onDragStartedWithItemSpans/onDragStartedWithSize) whenever we 1599 * start a drag in Launcher, regardless of whether the drag has ever entered the Workspace 1600 * 1601 * These methods mark the appropriate pages as accepting drops (which alters their visual 1602 * appearance). 1603 * 1604 */ 1605 public void onDragStartedWithItem(View v) { 1606 final Canvas canvas = new Canvas(); 1607 1608 // We need to add extra padding to the bitmap to make room for the glow effect 1609 final int bitmapPadding = HolographicOutlineHelper.MAX_OUTER_BLUR_RADIUS; 1610 1611 // The outline is used to visualize where the item will land if dropped 1612 mDragOutline = createDragOutline(v, canvas, bitmapPadding); 1613 } 1614 1615 public void onDragStartedWithItemSpans(int spanX, int spanY, Bitmap b) { 1616 final Canvas canvas = new Canvas(); 1617 1618 // We need to add extra padding to the bitmap to make room for the glow effect 1619 final int bitmapPadding = HolographicOutlineHelper.MAX_OUTER_BLUR_RADIUS; 1620 1621 CellLayout cl = (CellLayout) getChildAt(0); 1622 1623 int[] size = cl.cellSpansToSize(spanX, spanY); 1624 1625 // The outline is used to visualize where the item will land if dropped 1626 mDragOutline = createDragOutline(b, canvas, bitmapPadding, size[0], size[1]); 1627 } 1628 1629 // we call this method whenever a drag and drop in Launcher finishes, even if Workspace was 1630 // never dragged over 1631 public void onDragStopped(boolean success) { 1632 // In the success case, DragController has already called onDragExit() 1633 if (!success) { 1634 doDragExit(null); 1635 } 1636 } 1637 1638 // We call this when we trigger an unshrink by clicking on the CellLayout cl 1639 public void unshrink(CellLayout clThatWasClicked) { 1640 unshrink(clThatWasClicked, false); 1641 } 1642 1643 public void unshrink(CellLayout clThatWasClicked, boolean springLoaded) { 1644 int newCurrentPage = indexOfChild(clThatWasClicked); 1645 if (isSmall()) { 1646 if (springLoaded) { 1647 setLayoutScale(mSpringLoadedShrinkFactor); 1648 } 1649 scrollToNewPageWithoutMovingPages(newCurrentPage); 1650 unshrink(true, springLoaded); 1651 } 1652 } 1653 1654 1655 public void enterSpringLoadedDragMode(CellLayout clThatWasClicked) { 1656 unshrink(clThatWasClicked, true); 1657 } 1658 1659 public void exitSpringLoadedDragMode(State shrinkState) { 1660 shrink(shrinkState); 1661 } 1662 1663 public void exitWidgetResizeMode() { 1664 DragLayer dragLayer = mLauncher.getDragLayer(); 1665 dragLayer.clearAllResizeFrames(); 1666 } 1667 1668 void unshrink(boolean animated) { 1669 unshrink(animated, false); 1670 } 1671 1672 private void initAnimationArrays() { 1673 final int childCount = getChildCount(); 1674 if (mOldTranslationXs != null) return; 1675 mOldTranslationXs = new float[childCount]; 1676 mOldTranslationYs = new float[childCount]; 1677 mOldScaleXs = new float[childCount]; 1678 mOldScaleYs = new float[childCount]; 1679 mOldBackgroundAlphas = new float[childCount]; 1680 mOldBackgroundAlphaMultipliers = new float[childCount]; 1681 mOldAlphas = new float[childCount]; 1682 mOldRotationYs = new float[childCount]; 1683 mNewTranslationXs = new float[childCount]; 1684 mNewTranslationYs = new float[childCount]; 1685 mNewScaleXs = new float[childCount]; 1686 mNewScaleYs = new float[childCount]; 1687 mNewBackgroundAlphas = new float[childCount]; 1688 mNewBackgroundAlphaMultipliers = new float[childCount]; 1689 mNewAlphas = new float[childCount]; 1690 mNewRotationYs = new float[childCount]; 1691 } 1692 1693 void unshrink(boolean animated, final boolean springLoaded) { 1694 if (mFirstLayout) { 1695 // (mFirstLayout == "first layout has not happened yet") 1696 // cancel any pending shrinks that were set earlier 1697 mSwitchStateAfterFirstLayout = false; 1698 mStateAfterFirstLayout = State.NORMAL; 1699 return; 1700 } 1701 1702 if (isSmall()) { 1703 float finalScaleFactor = 1.0f; 1704 float finalBackgroundAlpha = 0.0f; 1705 if (springLoaded) { 1706 finalScaleFactor = mSpringLoadedShrinkFactor; 1707 finalBackgroundAlpha = 1.0f; 1708 mState = State.SPRING_LOADED; 1709 } else { 1710 mState = State.NORMAL; 1711 } 1712 if (mAnimator != null) { 1713 mAnimator.cancel(); 1714 } 1715 1716 mAnimator = new AnimatorSet(); 1717 1718 // Workaround the AnimatorSet cancel bug... 1719 mShrinkAnimationEnabled = false; 1720 mUnshrinkAnimationEnabled = true; 1721 1722 final int screenCount = getChildCount(); 1723 initAnimationArrays(); 1724 1725 final int duration = getResources().getInteger(R.integer.config_workspaceUnshrinkTime); 1726 for (int i = 0; i < screenCount; i++) { 1727 final CellLayout cl = (CellLayout)getChildAt(i); 1728 float finalAlphaValue = 0f; 1729 float rotation = 0f; 1730 1731 // Set the final alpha depending on whether we are fading side pages. On phone ui, 1732 // we don't do any of the rotation, or the fading alpha in portrait. See the 1733 // ctor and screenScrolled(). 1734 if (mFadeInAdjacentScreens && !springLoaded) { 1735 finalAlphaValue = (i == mCurrentPage) ? 1f : 0f; 1736 } else { 1737 finalAlphaValue = 1f; 1738 } 1739 1740 if (LauncherApplication.isScreenLarge()) { 1741 if (i < mCurrentPage) { 1742 rotation = WORKSPACE_ROTATION; 1743 } else if (i > mCurrentPage) { 1744 rotation = -WORKSPACE_ROTATION; 1745 } 1746 } 1747 float finalAlphaMultiplierValue = 1f; 1748 1749 float translation = 0f; 1750 1751 // If the screen is not xlarge, then don't rotate the CellLayouts 1752 // NOTE: If we don't update the side pages alpha, then we should not hide the side 1753 // pages. see unshrink(). 1754 if (LauncherApplication.isScreenLarge()) { 1755 translation = getOffsetXForRotation(rotation, cl.getWidth(), cl.getHeight()); 1756 } 1757 1758 mOldAlphas[i] = cl.getAlpha(); 1759 mNewAlphas[i] = finalAlphaValue; 1760 if (animated) { 1761 mOldTranslationXs[i] = cl.getTranslationX(); 1762 mOldTranslationYs[i] = cl.getTranslationY(); 1763 mOldScaleXs[i] = cl.getScaleX(); 1764 mOldScaleYs[i] = cl.getScaleY(); 1765 mOldBackgroundAlphas[i] = cl.getBackgroundAlpha(); 1766 mOldBackgroundAlphaMultipliers[i] = cl.getBackgroundAlphaMultiplier(); 1767 mOldRotationYs[i] = cl.getRotationY(); 1768 1769 mNewTranslationXs[i] = translation; 1770 mNewTranslationYs[i] = 0f; 1771 mNewScaleXs[i] = finalScaleFactor; 1772 mNewScaleYs[i] = finalScaleFactor; 1773 mNewBackgroundAlphas[i] = finalBackgroundAlpha; 1774 mNewBackgroundAlphaMultipliers[i] = finalAlphaMultiplierValue; 1775 mNewRotationYs[i] = rotation; 1776 } else { 1777 cl.setTranslationX(translation); 1778 cl.setTranslationY(0.0f); 1779 cl.setScaleX(finalScaleFactor); 1780 cl.setScaleY(finalScaleFactor); 1781 cl.setBackgroundAlpha(0.0f); 1782 cl.setBackgroundAlphaMultiplier(finalAlphaMultiplierValue); 1783 cl.setAlpha(finalAlphaValue); 1784 cl.setRotationY(rotation); 1785 mUnshrinkAnimationListener.onAnimationEnd(null); 1786 } 1787 } 1788 1789 // Unshrink the hotset the same amount we are unshrinking the screens 1790 if (mLauncher.getHotseat() != null) { 1791 View hotseat = mLauncher.getHotseat().getLayout(); 1792 hotseat.setScaleX(finalScaleFactor); 1793 hotseat.setScaleY(finalScaleFactor); 1794 } 1795 1796 Display display = mLauncher.getWindowManager().getDefaultDisplay(); 1797 boolean isLandscape = display.getWidth() > display.getHeight(); 1798 // on phones, don't scroll the wallpaper horizontally or vertically when switching 1799 // to/from all apps 1800 final boolean enableWallpaperEffects = 1801 isHardwareAccelerated() && LauncherApplication.isScreenLarge(); 1802 if (enableWallpaperEffects) { 1803 switch (mState) { 1804 // animating out 1805 case SPRING_LOADED: 1806 if (animated) { 1807 mWallpaperOffset.setHorizontalCatchupConstant(isLandscape ? 0.49f : 0.46f); 1808 mWallpaperOffset.setVerticalCatchupConstant(isLandscape ? 0.49f : 0.46f); 1809 mWallpaperOffset.setOverrideHorizontalCatchupConstant(true); 1810 } 1811 break; 1812 case SMALL: 1813 // all apps 1814 if (animated) { 1815 mWallpaperOffset.setHorizontalCatchupConstant(isLandscape ? 0.65f : 0.65f); 1816 mWallpaperOffset.setVerticalCatchupConstant(isLandscape ? 0.65f : 0.65f); 1817 mWallpaperOffset.setOverrideHorizontalCatchupConstant(true); 1818 } 1819 break; 1820 } 1821 } 1822 if (animated) { 1823 ValueAnimator animWithInterpolator = 1824 ValueAnimator.ofFloat(0f, 1f).setDuration(duration); 1825 animWithInterpolator.setInterpolator(mZoomInInterpolator); 1826 1827 final float oldHorizontalWallpaperOffset = enableWallpaperEffects ? 1828 getHorizontalWallpaperOffset() : 0; 1829 final float oldVerticalWallpaperOffset = enableWallpaperEffects ? 1830 getVerticalWallpaperOffset() : 0; 1831 final float newHorizontalWallpaperOffset = enableWallpaperEffects ? 1832 wallpaperOffsetForCurrentScroll() : 0; 1833 final float newVerticalWallpaperOffset = enableWallpaperEffects ? 0.5f : 0; 1834 animWithInterpolator.addUpdateListener(new LauncherAnimatorUpdateListener() { 1835 public void onAnimationUpdate(float a, float b) { 1836 if (!mUnshrinkAnimationEnabled) return; 1837 mTransitionProgress = b; 1838 if (b == 0f) { 1839 // an optimization, but not required 1840 return; 1841 } 1842 invalidate(); 1843 if (enableWallpaperEffects) { 1844 setHorizontalWallpaperOffset(a * oldHorizontalWallpaperOffset 1845 + b * newHorizontalWallpaperOffset); 1846 setVerticalWallpaperOffset(a * oldVerticalWallpaperOffset 1847 + b * newVerticalWallpaperOffset); 1848 } 1849 for (int i = 0; i < screenCount; i++) { 1850 final CellLayout cl = (CellLayout) getChildAt(i); 1851 cl.fastInvalidate(); 1852 cl.setFastTranslationX( 1853 a * mOldTranslationXs[i] + b * mNewTranslationXs[i]); 1854 cl.setFastTranslationY( 1855 a * mOldTranslationYs[i] + b * mNewTranslationYs[i]); 1856 cl.setFastScaleX(a * mOldScaleXs[i] + b * mNewScaleXs[i]); 1857 cl.setFastScaleY(a * mOldScaleYs[i] + b * mNewScaleYs[i]); 1858 cl.setFastBackgroundAlpha( 1859 a * mOldBackgroundAlphas[i] + b * mNewBackgroundAlphas[i]); 1860 cl.setBackgroundAlphaMultiplier(a * mOldBackgroundAlphaMultipliers[i] + 1861 b * mNewBackgroundAlphaMultipliers[i]); 1862 cl.setFastAlpha(a * mOldAlphas[i] + b * mNewAlphas[i]); 1863 } 1864 } 1865 }); 1866 1867 ValueAnimator rotationAnim = 1868 ValueAnimator.ofFloat(0f, 1f).setDuration(duration); 1869 rotationAnim.setInterpolator(new DecelerateInterpolator(2.0f)); 1870 rotationAnim.addUpdateListener(new LauncherAnimatorUpdateListener() { 1871 public void onAnimationUpdate(float a, float b) { 1872 if (!mUnshrinkAnimationEnabled) return; 1873 // don't invalidate workspace because we did it above 1874 if (b == 0f) { 1875 // an optimization, but not required 1876 return; 1877 } 1878 for (int i = 0; i < screenCount; i++) { 1879 final CellLayout cl = (CellLayout) getChildAt(i); 1880 cl.setFastRotationY(a * mOldRotationYs[i] + b * mNewRotationYs[i]); 1881 } 1882 } 1883 }); 1884 1885 mAnimator.playTogether(animWithInterpolator, rotationAnim); 1886 // If we call this when we're not animated, onAnimationEnd is never called on 1887 // the listener; make sure we only use the listener when we're actually animating 1888 mAnimator.addListener(mUnshrinkAnimationListener); 1889 mAnimator.start(); 1890 } else { 1891 if (enableWallpaperEffects) { 1892 setHorizontalWallpaperOffset(wallpaperOffsetForCurrentScroll()); 1893 setVerticalWallpaperOffset(0.5f); 1894 updateWallpaperOffsetImmediately(); 1895 } 1896 } 1897 } 1898 1899 if (springLoaded) { 1900 // Right now we're covered by Apps Customize 1901 // Show the background gradient immediately, so the gradient will 1902 // be showing once AppsCustomize disappears 1903 animateBackgroundGradient(getResources().getInteger( 1904 R.integer.config_appsCustomizeSpringLoadedBgAlpha) / 100f, false); 1905 } else { 1906 // Fade the background gradient away 1907 animateBackgroundGradient(0f, true); 1908 } 1909 } 1910 1911 /** 1912 * Draw the View v into the given Canvas. 1913 * 1914 * @param v the view to draw 1915 * @param destCanvas the canvas to draw on 1916 * @param padding the horizontal and vertical padding to use when drawing 1917 */ 1918 private void drawDragView(View v, Canvas destCanvas, int padding, boolean pruneToDrawable) { 1919 final Rect clipRect = mTempRect; 1920 v.getDrawingRect(clipRect); 1921 1922 destCanvas.save(); 1923 if (v instanceof TextView && pruneToDrawable) { 1924 Drawable d = ((TextView) v).getCompoundDrawables()[1]; 1925 clipRect.set(0, 0, d.getIntrinsicWidth() + padding, d.getIntrinsicHeight() + padding); 1926 destCanvas.translate(padding / 2, padding / 2); 1927 d.draw(destCanvas); 1928 } else { 1929 if (v instanceof FolderIcon) { 1930 clipRect.bottom = getResources().getDimensionPixelSize(R.dimen.folder_preview_size); 1931 } else if (v instanceof BubbleTextView) { 1932 final BubbleTextView tv = (BubbleTextView) v; 1933 clipRect.bottom = tv.getExtendedPaddingTop() - (int) BubbleTextView.PADDING_V + 1934 tv.getLayout().getLineTop(0); 1935 } else if (v instanceof TextView) { 1936 final TextView tv = (TextView) v; 1937 clipRect.bottom = tv.getExtendedPaddingTop() - tv.getCompoundDrawablePadding() + 1938 tv.getLayout().getLineTop(0); 1939 } 1940 destCanvas.translate(-v.getScrollX() + padding / 2, -v.getScrollY() + padding / 2); 1941 destCanvas.clipRect(clipRect, Op.REPLACE); 1942 v.draw(destCanvas); 1943 } 1944 destCanvas.restore(); 1945 } 1946 1947 /** 1948 * Returns a new bitmap to show when the given View is being dragged around. 1949 * Responsibility for the bitmap is transferred to the caller. 1950 */ 1951 public Bitmap createDragBitmap(View v, Canvas canvas, int padding) { 1952 final int outlineColor = getResources().getColor(android.R.color.holo_blue_light); 1953 Bitmap b; 1954 1955 if (v instanceof TextView) { 1956 Drawable d = ((TextView) v).getCompoundDrawables()[1]; 1957 b = Bitmap.createBitmap(d.getIntrinsicWidth() + padding, 1958 d.getIntrinsicHeight() + padding, Bitmap.Config.ARGB_8888); 1959 } else { 1960 b = Bitmap.createBitmap( 1961 v.getWidth() + padding, v.getHeight() + padding, Bitmap.Config.ARGB_8888); 1962 } 1963 1964 canvas.setBitmap(b); 1965 drawDragView(v, canvas, padding, true); 1966 mOutlineHelper.applyOuterBlur(b, canvas, outlineColor); 1967 canvas.setBitmap(null); 1968 1969 return b; 1970 } 1971 1972 /** 1973 * Returns a new bitmap to be used as the object outline, e.g. to visualize the drop location. 1974 * Responsibility for the bitmap is transferred to the caller. 1975 */ 1976 private Bitmap createDragOutline(View v, Canvas canvas, int padding) { 1977 final int outlineColor = getResources().getColor(android.R.color.holo_blue_light); 1978 final Bitmap b = Bitmap.createBitmap( 1979 v.getWidth() + padding, v.getHeight() + padding, Bitmap.Config.ARGB_8888); 1980 1981 canvas.setBitmap(b); 1982 drawDragView(v, canvas, padding, false); 1983 mOutlineHelper.applyMediumExpensiveOutlineWithBlur(b, canvas, outlineColor, outlineColor); 1984 canvas.setBitmap(null); 1985 return b; 1986 } 1987 1988 /** 1989 * Returns a new bitmap to be used as the object outline, e.g. to visualize the drop location. 1990 * Responsibility for the bitmap is transferred to the caller. 1991 */ 1992 private Bitmap createDragOutline(Bitmap orig, Canvas canvas, int padding, int w, int h) { 1993 final int outlineColor = getResources().getColor(android.R.color.holo_blue_light); 1994 final Bitmap b = Bitmap.createBitmap(w, h, Bitmap.Config.ARGB_8888); 1995 canvas.setBitmap(b); 1996 1997 Rect src = new Rect(0, 0, orig.getWidth(), orig.getHeight()); 1998 float scaleFactor = Math.min((w - padding) / (float) orig.getWidth(), 1999 (h - padding) / (float) orig.getHeight()); 2000 int scaledWidth = (int) (scaleFactor * orig.getWidth()); 2001 int scaledHeight = (int) (scaleFactor * orig.getHeight()); 2002 Rect dst = new Rect(0, 0, scaledWidth, scaledHeight); 2003 2004 // center the image 2005 dst.offset((w - scaledWidth) / 2, (h - scaledHeight) / 2); 2006 2007 Paint p = new Paint(); 2008 p.setFilterBitmap(true); 2009 canvas.drawBitmap(orig, src, dst, p); 2010 mOutlineHelper.applyMediumExpensiveOutlineWithBlur(b, canvas, outlineColor, outlineColor); 2011 canvas.setBitmap(null); 2012 2013 return b; 2014 } 2015 2016 /** 2017 * Creates a drag outline to represent a drop (that we don't have the actual information for 2018 * yet). May be changed in the future to alter the drop outline slightly depending on the 2019 * clip description mime data. 2020 */ 2021 private Bitmap createExternalDragOutline(Canvas canvas, int padding) { 2022 Resources r = getResources(); 2023 final int outlineColor = r.getColor(android.R.color.holo_blue_light); 2024 final int iconWidth = r.getDimensionPixelSize(R.dimen.workspace_cell_width); 2025 final int iconHeight = r.getDimensionPixelSize(R.dimen.workspace_cell_height); 2026 final int rectRadius = r.getDimensionPixelSize(R.dimen.external_drop_icon_rect_radius); 2027 final int inset = (int) (Math.min(iconWidth, iconHeight) * 0.2f); 2028 final Bitmap b = Bitmap.createBitmap( 2029 iconWidth + padding, iconHeight + padding, Bitmap.Config.ARGB_8888); 2030 2031 canvas.setBitmap(b); 2032 canvas.drawRoundRect(new RectF(inset, inset, iconWidth - inset, iconHeight - inset), 2033 rectRadius, rectRadius, mExternalDragOutlinePaint); 2034 mOutlineHelper.applyMediumExpensiveOutlineWithBlur(b, canvas, outlineColor, outlineColor); 2035 canvas.setBitmap(null); 2036 return b; 2037 } 2038 2039 void startDrag(CellLayout.CellInfo cellInfo) { 2040 View child = cellInfo.cell; 2041 2042 // Make sure the drag was started by a long press as opposed to a long click. 2043 if (!child.isInTouchMode()) { 2044 return; 2045 } 2046 2047 mDragInfo = cellInfo; 2048 child.setVisibility(GONE); 2049 2050 child.clearFocus(); 2051 child.setPressed(false); 2052 2053 final Canvas canvas = new Canvas(); 2054 2055 // We need to add extra padding to the bitmap to make room for the glow effect 2056 final int bitmapPadding = HolographicOutlineHelper.MAX_OUTER_BLUR_RADIUS; 2057 2058 // The outline is used to visualize where the item will land if dropped 2059 mDragOutline = createDragOutline(child, canvas, bitmapPadding); 2060 beginDragShared(child, this); 2061 } 2062 2063 public void beginDragShared(View child, DragSource source) { 2064 // We need to add extra padding to the bitmap to make room for the glow effect 2065 final int bitmapPadding = HolographicOutlineHelper.MAX_OUTER_BLUR_RADIUS; 2066 2067 // The drag bitmap follows the touch point around on the screen 2068 final Bitmap b = createDragBitmap(child, new Canvas(), bitmapPadding); 2069 2070 final int bmpWidth = b.getWidth(); 2071 2072 mLauncher.getDragLayer().getLocationInDragLayer(child, mTempXY); 2073 final int dragLayerX = (int) mTempXY[0] + (child.getWidth() - bmpWidth) / 2; 2074 int dragLayerY = mTempXY[1] - bitmapPadding / 2; 2075 2076 Rect dragRect = null; 2077 if (child instanceof BubbleTextView) { 2078 int iconSize = getResources().getDimensionPixelSize(R.dimen.app_icon_size); 2079 int top = child.getPaddingTop(); 2080 int left = (bmpWidth - iconSize) / 2; 2081 int right = left + iconSize; 2082 int bottom = top + iconSize; 2083 dragLayerY += top; 2084 dragRect = new Rect(left, top, right, bottom); 2085 } else if (child instanceof FolderIcon) { 2086 int previewSize = getResources().getDimensionPixelSize(R.dimen.folder_preview_size); 2087 dragRect = new Rect(0, 0, child.getWidth(), previewSize); 2088 } 2089 2090 mDragController.startDrag(b, dragLayerX, dragLayerY, source, child.getTag(), 2091 DragController.DRAG_ACTION_MOVE, dragRect); 2092 b.recycle(); 2093 } 2094 2095 void addApplicationShortcut(ShortcutInfo info, CellLayout target, long container, int screen, 2096 int cellX, int cellY, boolean insertAtFirst, int intersectX, int intersectY) { 2097 View view = mLauncher.createShortcut(R.layout.application, target, (ShortcutInfo) info); 2098 2099 final int[] cellXY = new int[2]; 2100 target.findCellForSpanThatIntersects(cellXY, 1, 1, intersectX, intersectY); 2101 addInScreen(view, container, screen, cellXY[0], cellXY[1], 1, 1, insertAtFirst); 2102 LauncherModel.addOrMoveItemInDatabase(mLauncher, info, container, screen, cellXY[0], 2103 cellXY[1]); 2104 } 2105 2106 public boolean transitionStateShouldAllowDrop() { 2107 return (!isSwitchingState() || mTransitionProgress > 0.5f); 2108 } 2109 2110 /** 2111 * {@inheritDoc} 2112 */ 2113 public boolean acceptDrop(DragObject d) { 2114 // If it's an external drop (e.g. from All Apps), check if it should be accepted 2115 if (d.dragSource != this) { 2116 // Don't accept the drop if we're not over a screen at time of drop 2117 if (mDragTargetLayout == null) { 2118 return false; 2119 } 2120 if (!transitionStateShouldAllowDrop()) return false; 2121 2122 mDragViewVisualCenter = getDragViewVisualCenter(d.x, d.y, d.xOffset, d.yOffset, 2123 d.dragView, mDragViewVisualCenter); 2124 2125 int spanX = 1; 2126 int spanY = 1; 2127 View ignoreView = null; 2128 if (mDragInfo != null) { 2129 final CellLayout.CellInfo dragCellInfo = mDragInfo; 2130 spanX = dragCellInfo.spanX; 2131 spanY = dragCellInfo.spanY; 2132 ignoreView = dragCellInfo.cell; 2133 } else { 2134 final ItemInfo dragInfo = (ItemInfo) d.dragInfo; 2135 spanX = dragInfo.spanX; 2136 spanY = dragInfo.spanY; 2137 } 2138 2139 mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], 2140 (int) mDragViewVisualCenter[1], spanX, spanY, mDragTargetLayout, mTargetCell); 2141 if (willCreateUserFolder((ItemInfo) d.dragInfo, mDragTargetLayout, mTargetCell, true)) { 2142 return true; 2143 } 2144 if (willAddToExistingUserFolder((ItemInfo) d.dragInfo, mDragTargetLayout, 2145 mTargetCell)) { 2146 return true; 2147 } 2148 2149 2150 // Don't accept the drop if there's no room for the item 2151 if (!mDragTargetLayout.findCellForSpanIgnoring(null, spanX, spanY, ignoreView)) { 2152 mLauncher.showOutOfSpaceMessage(); 2153 return false; 2154 } 2155 } 2156 return true; 2157 } 2158 2159 boolean willCreateUserFolder(ItemInfo info, CellLayout target, int[] targetCell, 2160 boolean considerTimeout) { 2161 View dropOverView = target.getChildAt(targetCell[0], targetCell[1]); 2162 2163 boolean hasntMoved = false; 2164 if (mDragInfo != null) { 2165 CellLayout cellParent = getParentCellLayoutForView(mDragInfo.cell); 2166 hasntMoved = (mDragInfo.cellX == targetCell[0] && 2167 mDragInfo.cellY == targetCell[1]) && (cellParent == target); 2168 } 2169 2170 if (dropOverView == null || hasntMoved || (considerTimeout && !mCreateUserFolderOnDrop)) { 2171 return false; 2172 } 2173 2174 boolean aboveShortcut = (dropOverView.getTag() instanceof ShortcutInfo); 2175 boolean willBecomeShortcut = 2176 (info.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPLICATION || 2177 info.itemType == LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT); 2178 2179 return (aboveShortcut && willBecomeShortcut); 2180 } 2181 2182 boolean willAddToExistingUserFolder(Object dragInfo, CellLayout target, int[] targetCell) { 2183 View dropOverView = target.getChildAt(targetCell[0], targetCell[1]); 2184 if (dropOverView instanceof FolderIcon) { 2185 FolderIcon fi = (FolderIcon) dropOverView; 2186 if (fi.acceptDrop(dragInfo)) { 2187 return true; 2188 } 2189 } 2190 return false; 2191 } 2192 2193 boolean createUserFolderIfNecessary(View newView, long container, CellLayout target, 2194 int[] targetCell, boolean external, DragView dragView, Runnable postAnimationRunnable) { 2195 View v = target.getChildAt(targetCell[0], targetCell[1]); 2196 boolean hasntMoved = false; 2197 if (mDragInfo != null) { 2198 CellLayout cellParent = getParentCellLayoutForView(mDragInfo.cell); 2199 hasntMoved = (mDragInfo.cellX == targetCell[0] && 2200 mDragInfo.cellY == targetCell[1]) && (cellParent == target); 2201 } 2202 2203 if (v == null || hasntMoved || !mCreateUserFolderOnDrop) return false; 2204 mCreateUserFolderOnDrop = false; 2205 final int screen = (targetCell == null) ? mDragInfo.screen : indexOfChild(target); 2206 2207 boolean aboveShortcut = (v.getTag() instanceof ShortcutInfo); 2208 boolean willBecomeShortcut = (newView.getTag() instanceof ShortcutInfo); 2209 2210 if (aboveShortcut && willBecomeShortcut) { 2211 ShortcutInfo sourceInfo = (ShortcutInfo) newView.getTag(); 2212 ShortcutInfo destInfo = (ShortcutInfo) v.getTag(); 2213 // if the drag started here, we need to remove it from the workspace 2214 if (!external) { 2215 getParentCellLayoutForView(mDragInfo.cell).removeView(mDragInfo.cell); 2216 } 2217 2218 Rect folderLocation = new Rect(); 2219 float scale = mLauncher.getDragLayer().getDescendantRectRelativeToSelf(v, folderLocation); 2220 target.removeView(v); 2221 2222 FolderIcon fi = 2223 mLauncher.addFolder(target, container, screen, targetCell[0], targetCell[1]); 2224 destInfo.cellX = -1; 2225 destInfo.cellY = -1; 2226 sourceInfo.cellX = -1; 2227 sourceInfo.cellY = -1; 2228 2229 fi.performCreateAnimation(destInfo, v, sourceInfo, dragView, folderLocation, scale, 2230 postAnimationRunnable); 2231 return true; 2232 } 2233 return false; 2234 } 2235 2236 boolean addToExistingFolderIfNecessary(View newView, CellLayout target, int[] targetCell, 2237 DragObject d, boolean external) { 2238 View dropOverView = target.getChildAt(targetCell[0], targetCell[1]); 2239 if (dropOverView instanceof FolderIcon) { 2240 FolderIcon fi = (FolderIcon) dropOverView; 2241 if (fi.acceptDrop(d.dragInfo)) { 2242 fi.onDrop(d); 2243 2244 // if the drag started here, we need to remove it from the workspace 2245 if (!external) { 2246 getParentCellLayoutForView(mDragInfo.cell).removeView(mDragInfo.cell); 2247 } 2248 return true; 2249 } 2250 } 2251 return false; 2252 } 2253 2254 public void onDrop(DragObject d) { 2255 mDragViewVisualCenter = getDragViewVisualCenter(d.x, d.y, d.xOffset, d.yOffset, d.dragView, 2256 mDragViewVisualCenter); 2257 2258 // We want the point to be mapped to the dragTarget. 2259 if (mDragTargetLayout != null) { 2260 if (mLauncher.isHotseatLayout(mDragTargetLayout)) { 2261 mapPointFromSelfToSibling(mLauncher.getHotseat(), mDragViewVisualCenter); 2262 } else { 2263 mapPointFromSelfToChild(mDragTargetLayout, mDragViewVisualCenter, null); 2264 } 2265 } 2266 2267 CellLayout dropTargetLayout = mDragTargetLayout; 2268 2269 int snapScreen = -1; 2270 if (d.dragSource != this) { 2271 final int[] touchXY = new int[] { (int) mDragViewVisualCenter[0], 2272 (int) mDragViewVisualCenter[1] }; 2273 onDropExternal(touchXY, d.dragInfo, dropTargetLayout, false, d); 2274 } else if (mDragInfo != null) { 2275 final View cell = mDragInfo.cell; 2276 2277 if (dropTargetLayout != null) { 2278 // Move internally 2279 boolean hasMovedLayouts = (getParentCellLayoutForView(cell) != dropTargetLayout); 2280 boolean hasMovedIntoHotseat = mLauncher.isHotseatLayout(dropTargetLayout); 2281 long container = hasMovedIntoHotseat ? 2282 LauncherSettings.Favorites.CONTAINER_HOTSEAT : 2283 LauncherSettings.Favorites.CONTAINER_DESKTOP; 2284 int screen = (mTargetCell[0] < 0) ? 2285 mDragInfo.screen : indexOfChild(dropTargetLayout); 2286 int spanX = mDragInfo != null ? mDragInfo.spanX : 1; 2287 int spanY = mDragInfo != null ? mDragInfo.spanY : 1; 2288 // First we find the cell nearest to point at which the item is 2289 // dropped, without any consideration to whether there is an item there. 2290 mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], (int) 2291 mDragViewVisualCenter[1], spanX, spanY, dropTargetLayout, mTargetCell); 2292 // If the item being dropped is a shortcut and the nearest drop 2293 // cell also contains a shortcut, then create a folder with the two shortcuts. 2294 if (!mInScrollArea && createUserFolderIfNecessary(cell, container, 2295 dropTargetLayout, mTargetCell, false, d.dragView, null)) { 2296 return; 2297 } 2298 2299 if (addToExistingFolderIfNecessary(cell, dropTargetLayout, mTargetCell, d, false)) { 2300 return; 2301 } 2302 2303 // Aside from the special case where we're dropping a shortcut onto a shortcut, 2304 // we need to find the nearest cell location that is vacant 2305 mTargetCell = findNearestVacantArea((int) mDragViewVisualCenter[0], 2306 (int) mDragViewVisualCenter[1], mDragInfo.spanX, mDragInfo.spanY, cell, 2307 dropTargetLayout, mTargetCell); 2308 2309 if (mCurrentPage != screen && !hasMovedIntoHotseat) { 2310 snapScreen = screen; 2311 snapToPage(screen); 2312 } 2313 2314 if (mTargetCell[0] >= 0 && mTargetCell[1] >= 0) { 2315 if (hasMovedLayouts) { 2316 // Reparent the view 2317 getParentCellLayoutForView(cell).removeView(cell); 2318 addInScreen(cell, container, screen, mTargetCell[0], mTargetCell[1], 2319 mDragInfo.spanX, mDragInfo.spanY); 2320 } 2321 2322 // update the item's position after drop 2323 final ItemInfo info = (ItemInfo) cell.getTag(); 2324 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) cell.getLayoutParams(); 2325 dropTargetLayout.onMove(cell, mTargetCell[0], mTargetCell[1]); 2326 lp.cellX = mTargetCell[0]; 2327 lp.cellY = mTargetCell[1]; 2328 cell.setId(LauncherModel.getCellLayoutChildId(container, mDragInfo.screen, 2329 mTargetCell[0], mTargetCell[1], mDragInfo.spanX, mDragInfo.spanY)); 2330 2331 if (container != LauncherSettings.Favorites.CONTAINER_HOTSEAT && 2332 cell instanceof LauncherAppWidgetHostView) { 2333 final CellLayout cellLayout = dropTargetLayout; 2334 // We post this call so that the widget has a chance to be placed 2335 // in its final location 2336 2337 final LauncherAppWidgetHostView hostView = (LauncherAppWidgetHostView) cell; 2338 AppWidgetProviderInfo pinfo = hostView.getAppWidgetInfo(); 2339 if (pinfo.resizeMode != AppWidgetProviderInfo.RESIZE_NONE) { 2340 final Runnable resizeRunnable = new Runnable() { 2341 public void run() { 2342 DragLayer dragLayer = mLauncher.getDragLayer(); 2343 dragLayer.addResizeFrame(info, hostView, cellLayout); 2344 } 2345 }; 2346 post(new Runnable() { 2347 public void run() { 2348 if (!isPageMoving()) { 2349 resizeRunnable.run(); 2350 } else { 2351 mDelayedResizeRunnable = resizeRunnable; 2352 } 2353 } 2354 }); 2355 } 2356 } 2357 2358 LauncherModel.moveItemInDatabase(mLauncher, info, container, screen, lp.cellX, 2359 lp.cellY); 2360 } 2361 } 2362 2363 final CellLayout parent = (CellLayout) cell.getParent().getParent(); 2364 2365 // Prepare it to be animated into its new position 2366 // This must be called after the view has been re-parented 2367 final Runnable disableHardwareLayersRunnable = new Runnable() { 2368 @Override 2369 public void run() { 2370 mAnimatingViewIntoPlace = false; 2371 updateChildrenLayersEnabled(); 2372 } 2373 }; 2374 mAnimatingViewIntoPlace = true; 2375 if (d.dragView.hasDrawn()) { 2376 int duration = snapScreen < 0 ? -1 : ADJACENT_SCREEN_DROP_DURATION; 2377 setFinalScrollForPageChange(snapScreen); 2378 mLauncher.getDragLayer().animateViewIntoPosition(d.dragView, cell, duration, 2379 disableHardwareLayersRunnable); 2380 resetFinalScrollForPageChange(snapScreen); 2381 } else { 2382 cell.setVisibility(VISIBLE); 2383 } 2384 parent.onDropChild(cell); 2385 } 2386 } 2387 2388 public void setFinalScrollForPageChange(int screen) { 2389 if (screen >= 0) { 2390 mSavedScrollX = getScrollX(); 2391 CellLayout cl = (CellLayout) getChildAt(screen); 2392 mSavedTranslationX = cl.getTranslationX(); 2393 mSavedRotationY = cl.getRotationY(); 2394 final int newX = getChildOffset(screen) - getRelativeChildOffset(screen); 2395 setScrollX(newX); 2396 cl.setTranslationX(0f); 2397 cl.setRotationY(0f); 2398 } 2399 } 2400 2401 public void resetFinalScrollForPageChange(int screen) { 2402 if (screen >= 0) { 2403 CellLayout cl = (CellLayout) getChildAt(screen); 2404 setScrollX(mSavedScrollX); 2405 cl.setTranslationX(mSavedTranslationX); 2406 cl.setRotationY(mSavedRotationY); 2407 } 2408 } 2409 2410 public void getViewLocationRelativeToSelf(View v, int[] location) { 2411 getLocationInWindow(location); 2412 int x = location[0]; 2413 int y = location[1]; 2414 2415 v.getLocationInWindow(location); 2416 int vX = location[0]; 2417 int vY = location[1]; 2418 2419 location[0] = vX - x; 2420 location[1] = vY - y; 2421 } 2422 2423 public void onDragEnter(DragObject d) { 2424 if (mDragTargetLayout != null) { 2425 mDragTargetLayout.setIsDragOverlapping(false); 2426 mDragTargetLayout.onDragExit(); 2427 } 2428 mDragTargetLayout = getCurrentDropLayout(); 2429 mDragTargetLayout.setIsDragOverlapping(true); 2430 mDragTargetLayout.onDragEnter(); 2431 2432 // Because we don't have space in the Phone UI (the CellLayouts run to the edge) we 2433 // don't need to show the outlines 2434 if (LauncherApplication.isScreenLarge()) { 2435 showOutlines(); 2436 } 2437 } 2438 2439 private void doDragExit(DragObject d) { 2440 // Clean up folders 2441 cleanupFolderCreation(d); 2442 2443 // Reset the scroll area and previous drag target 2444 onResetScrollArea(); 2445 2446 if (mDragTargetLayout != null) { 2447 mDragTargetLayout.setIsDragOverlapping(false); 2448 mDragTargetLayout.onDragExit(); 2449 } 2450 mLastDragOverView = null; 2451 2452 if (!mIsPageMoving) { 2453 hideOutlines(); 2454 } 2455 } 2456 2457 public void onDragExit(DragObject d) { 2458 doDragExit(d); 2459 } 2460 2461 public DropTarget getDropTargetDelegate(DragObject d) { 2462 return null; 2463 } 2464 2465 /** 2466 * Tests to see if the drop will be accepted by Launcher, and if so, includes additional data 2467 * in the returned structure related to the widgets that match the drop (or a null list if it is 2468 * a shortcut drop). If the drop is not accepted then a null structure is returned. 2469 */ 2470 private Pair<Integer, List<WidgetMimeTypeHandlerData>> validateDrag(DragEvent event) { 2471 final LauncherModel model = mLauncher.getModel(); 2472 final ClipDescription desc = event.getClipDescription(); 2473 final int mimeTypeCount = desc.getMimeTypeCount(); 2474 for (int i = 0; i < mimeTypeCount; ++i) { 2475 final String mimeType = desc.getMimeType(i); 2476 if (mimeType.equals(InstallShortcutReceiver.SHORTCUT_MIMETYPE)) { 2477 return new Pair<Integer, List<WidgetMimeTypeHandlerData>>(i, null); 2478 } else { 2479 final List<WidgetMimeTypeHandlerData> widgets = 2480 model.resolveWidgetsForMimeType(mContext, mimeType); 2481 if (widgets.size() > 0) { 2482 return new Pair<Integer, List<WidgetMimeTypeHandlerData>>(i, widgets); 2483 } 2484 } 2485 } 2486 return null; 2487 } 2488 2489 /** 2490 * Global drag and drop handler 2491 */ 2492 @Override 2493 public boolean onDragEvent(DragEvent event) { 2494 final ClipDescription desc = event.getClipDescription(); 2495 final CellLayout layout = (CellLayout) getChildAt(mCurrentPage); 2496 final int[] pos = new int[2]; 2497 layout.getLocationOnScreen(pos); 2498 // We need to offset the drag coordinates to layout coordinate space 2499 final int x = (int) event.getX() - pos[0]; 2500 final int y = (int) event.getY() - pos[1]; 2501 2502 switch (event.getAction()) { 2503 case DragEvent.ACTION_DRAG_STARTED: { 2504 // Validate this drag 2505 Pair<Integer, List<WidgetMimeTypeHandlerData>> test = validateDrag(event); 2506 if (test != null) { 2507 boolean isShortcut = (test.second == null); 2508 if (isShortcut) { 2509 // Check if we have enough space on this screen to add a new shortcut 2510 if (!layout.findCellForSpan(pos, 1, 1)) { 2511 mLauncher.showOutOfSpaceMessage(); 2512 return false; 2513 } 2514 } 2515 } else { 2516 // Show error message if we couldn't accept any of the items 2517 Toast.makeText(mContext, mContext.getString(R.string.external_drop_widget_error), 2518 Toast.LENGTH_SHORT).show(); 2519 return false; 2520 } 2521 2522 // Create the drag outline 2523 // We need to add extra padding to the bitmap to make room for the glow effect 2524 final Canvas canvas = new Canvas(); 2525 final int bitmapPadding = HolographicOutlineHelper.MAX_OUTER_BLUR_RADIUS; 2526 mDragOutline = createExternalDragOutline(canvas, bitmapPadding); 2527 2528 // Show the current page outlines to indicate that we can accept this drop 2529 showOutlines(); 2530 layout.setIsDragOccuring(true); 2531 layout.onDragEnter(); 2532 layout.visualizeDropLocation(null, mDragOutline, x, y, 1, 1); 2533 2534 return true; 2535 } 2536 case DragEvent.ACTION_DRAG_LOCATION: 2537 // Visualize the drop location 2538 layout.visualizeDropLocation(null, mDragOutline, x, y, 1, 1); 2539 return true; 2540 case DragEvent.ACTION_DROP: { 2541 // Try and add any shortcuts 2542 final LauncherModel model = mLauncher.getModel(); 2543 final ClipData data = event.getClipData(); 2544 2545 // We assume that the mime types are ordered in descending importance of 2546 // representation. So we enumerate the list of mime types and alert the 2547 // user if any widgets can handle the drop. Only the most preferred 2548 // representation will be handled. 2549 pos[0] = x; 2550 pos[1] = y; 2551 Pair<Integer, List<WidgetMimeTypeHandlerData>> test = validateDrag(event); 2552 if (test != null) { 2553 final int index = test.first; 2554 final List<WidgetMimeTypeHandlerData> widgets = test.second; 2555 final boolean isShortcut = (widgets == null); 2556 final String mimeType = desc.getMimeType(index); 2557 if (isShortcut) { 2558 final Intent intent = data.getItemAt(index).getIntent(); 2559 Object info = model.infoFromShortcutIntent(mContext, intent, data.getIcon()); 2560 onDropExternal(new int[] { x, y }, info, layout, false); 2561 } else { 2562 if (widgets.size() == 1) { 2563 // If there is only one item, then go ahead and add and configure 2564 // that widget 2565 final AppWidgetProviderInfo widgetInfo = widgets.get(0).widgetInfo; 2566 final PendingAddWidgetInfo createInfo = 2567 new PendingAddWidgetInfo(widgetInfo, mimeType, data); 2568 mLauncher.addAppWidgetFromDrop(createInfo, 2569 LauncherSettings.Favorites.CONTAINER_DESKTOP, mCurrentPage, null, pos); 2570 } else { 2571 // Show the widget picker dialog if there is more than one widget 2572 // that can handle this data type 2573 final InstallWidgetReceiver.WidgetListAdapter adapter = 2574 new InstallWidgetReceiver.WidgetListAdapter(mLauncher, mimeType, 2575 data, widgets, layout, mCurrentPage, pos); 2576 final AlertDialog.Builder builder = 2577 new AlertDialog.Builder(mContext); 2578 builder.setAdapter(adapter, adapter); 2579 builder.setCancelable(true); 2580 builder.setTitle(mContext.getString( 2581 R.string.external_drop_widget_pick_title)); 2582 builder.setIcon(R.drawable.ic_no_applications); 2583 builder.show(); 2584 } 2585 } 2586 } 2587 return true; 2588 } 2589 case DragEvent.ACTION_DRAG_ENDED: 2590 // Hide the page outlines after the drop 2591 layout.setIsDragOccuring(false); 2592 layout.onDragExit(); 2593 hideOutlines(); 2594 return true; 2595 } 2596 return super.onDragEvent(event); 2597 } 2598 2599 /* 2600 * 2601 * Convert the 2D coordinate xy from the parent View's coordinate space to this CellLayout's 2602 * coordinate space. The argument xy is modified with the return result. 2603 * 2604 */ 2605 void mapPointFromSelfToChild(View v, float[] xy) { 2606 mapPointFromSelfToChild(v, xy, null); 2607 } 2608 2609 /* 2610 * 2611 * Convert the 2D coordinate xy from the parent View's coordinate space to this CellLayout's 2612 * coordinate space. The argument xy is modified with the return result. 2613 * 2614 * if cachedInverseMatrix is not null, this method will just use that matrix instead of 2615 * computing it itself; we use this to avoid redundant matrix inversions in 2616 * findMatchingPageForDragOver 2617 * 2618 */ 2619 void mapPointFromSelfToChild(View v, float[] xy, Matrix cachedInverseMatrix) { 2620 if (cachedInverseMatrix == null) { 2621 v.getMatrix().invert(mTempInverseMatrix); 2622 cachedInverseMatrix = mTempInverseMatrix; 2623 } 2624 xy[0] = xy[0] + mScrollX - v.getLeft(); 2625 xy[1] = xy[1] + mScrollY - v.getTop(); 2626 cachedInverseMatrix.mapPoints(xy); 2627 } 2628 2629 /* 2630 * Maps a point from the Workspace's coordinate system to another sibling view's. (Workspace 2631 * covers the full screen) 2632 */ 2633 void mapPointFromSelfToSibling(View v, float[] xy) { 2634 xy[0] = xy[0] - v.getLeft(); 2635 xy[1] = xy[1] - v.getTop(); 2636 } 2637 2638 /* 2639 * 2640 * Convert the 2D coordinate xy from this CellLayout's coordinate space to 2641 * the parent View's coordinate space. The argument xy is modified with the return result. 2642 * 2643 */ 2644 void mapPointFromChildToSelf(View v, float[] xy) { 2645 v.getMatrix().mapPoints(xy); 2646 xy[0] -= (mScrollX - v.getLeft()); 2647 xy[1] -= (mScrollY - v.getTop()); 2648 } 2649 2650 static private float squaredDistance(float[] point1, float[] point2) { 2651 float distanceX = point1[0] - point2[0]; 2652 float distanceY = point2[1] - point2[1]; 2653 return distanceX * distanceX + distanceY * distanceY; 2654 } 2655 2656 /* 2657 * 2658 * Returns true if the passed CellLayout cl overlaps with dragView 2659 * 2660 */ 2661 boolean overlaps(CellLayout cl, DragView dragView, 2662 int dragViewX, int dragViewY, Matrix cachedInverseMatrix) { 2663 // Transform the coordinates of the item being dragged to the CellLayout's coordinates 2664 final float[] draggedItemTopLeft = mTempDragCoordinates; 2665 draggedItemTopLeft[0] = dragViewX; 2666 draggedItemTopLeft[1] = dragViewY; 2667 final float[] draggedItemBottomRight = mTempDragBottomRightCoordinates; 2668 draggedItemBottomRight[0] = draggedItemTopLeft[0] + dragView.getDragRegionWidth(); 2669 draggedItemBottomRight[1] = draggedItemTopLeft[1] + dragView.getDragRegionHeight(); 2670 2671 // Transform the dragged item's top left coordinates 2672 // to the CellLayout's local coordinates 2673 mapPointFromSelfToChild(cl, draggedItemTopLeft, cachedInverseMatrix); 2674 float overlapRegionLeft = Math.max(0f, draggedItemTopLeft[0]); 2675 float overlapRegionTop = Math.max(0f, draggedItemTopLeft[1]); 2676 2677 if (overlapRegionLeft <= cl.getWidth() && overlapRegionTop >= 0) { 2678 // Transform the dragged item's bottom right coordinates 2679 // to the CellLayout's local coordinates 2680 mapPointFromSelfToChild(cl, draggedItemBottomRight, cachedInverseMatrix); 2681 float overlapRegionRight = Math.min(cl.getWidth(), draggedItemBottomRight[0]); 2682 float overlapRegionBottom = Math.min(cl.getHeight(), draggedItemBottomRight[1]); 2683 2684 if (overlapRegionRight >= 0 && overlapRegionBottom <= cl.getHeight()) { 2685 float overlap = (overlapRegionRight - overlapRegionLeft) * 2686 (overlapRegionBottom - overlapRegionTop); 2687 if (overlap > 0) { 2688 return true; 2689 } 2690 } 2691 } 2692 return false; 2693 } 2694 2695 /* 2696 * 2697 * This method returns the CellLayout that is currently being dragged to. In order to drag 2698 * to a CellLayout, either the touch point must be directly over the CellLayout, or as a second 2699 * strategy, we see if the dragView is overlapping any CellLayout and choose the closest one 2700 * 2701 * Return null if no CellLayout is currently being dragged over 2702 * 2703 */ 2704 private CellLayout findMatchingPageForDragOver( 2705 DragView dragView, float originX, float originY, boolean exact) { 2706 // We loop through all the screens (ie CellLayouts) and see which ones overlap 2707 // with the item being dragged and then choose the one that's closest to the touch point 2708 final int screenCount = getChildCount(); 2709 CellLayout bestMatchingScreen = null; 2710 float smallestDistSoFar = Float.MAX_VALUE; 2711 2712 for (int i = 0; i < screenCount; i++) { 2713 CellLayout cl = (CellLayout) getChildAt(i); 2714 2715 final float[] touchXy = {originX, originY}; 2716 // Transform the touch coordinates to the CellLayout's local coordinates 2717 // If the touch point is within the bounds of the cell layout, we can return immediately 2718 cl.getMatrix().invert(mTempInverseMatrix); 2719 mapPointFromSelfToChild(cl, touchXy, mTempInverseMatrix); 2720 2721 if (touchXy[0] >= 0 && touchXy[0] <= cl.getWidth() && 2722 touchXy[1] >= 0 && touchXy[1] <= cl.getHeight()) { 2723 return cl; 2724 } 2725 2726 if (!exact && overlaps(cl, dragView, (int) originX, (int) originY, mTempInverseMatrix)) { 2727 // Get the center of the cell layout in screen coordinates 2728 final float[] cellLayoutCenter = mTempCellLayoutCenterCoordinates; 2729 cellLayoutCenter[0] = cl.getWidth()/2; 2730 cellLayoutCenter[1] = cl.getHeight()/2; 2731 mapPointFromChildToSelf(cl, cellLayoutCenter); 2732 2733 touchXy[0] = originX; 2734 touchXy[1] = originY; 2735 2736 // Calculate the distance between the center of the CellLayout 2737 // and the touch point 2738 float dist = squaredDistance(touchXy, cellLayoutCenter); 2739 2740 if (dist < smallestDistSoFar) { 2741 smallestDistSoFar = dist; 2742 bestMatchingScreen = cl; 2743 } 2744 } 2745 } 2746 return bestMatchingScreen; 2747 } 2748 2749 // This is used to compute the visual center of the dragView. This point is then 2750 // used to visualize drop locations and determine where to drop an item. The idea is that 2751 // the visual center represents the user's interpretation of where the item is, and hence 2752 // is the appropriate point to use when determining drop location. 2753 private float[] getDragViewVisualCenter(int x, int y, int xOffset, int yOffset, 2754 DragView dragView, float[] recycle) { 2755 float res[]; 2756 if (recycle == null) { 2757 res = new float[2]; 2758 } else { 2759 res = recycle; 2760 } 2761 2762 // First off, the drag view has been shifted in a way that is not represented in the 2763 // x and y values or the x/yOffsets. Here we account for that shift. 2764 x += getResources().getDimensionPixelSize(R.dimen.dragViewOffsetX); 2765 y += getResources().getDimensionPixelSize(R.dimen.dragViewOffsetY); 2766 2767 // These represent the visual top and left of drag view if a dragRect was provided. 2768 // If a dragRect was not provided, then they correspond to the actual view left and 2769 // top, as the dragRect is in that case taken to be the entire dragView. 2770 // R.dimen.dragViewOffsetY. 2771 int left = x - xOffset; 2772 int top = y - yOffset; 2773 2774 // In order to find the visual center, we shift by half the dragRect 2775 res[0] = left + dragView.getDragRegion().width() / 2; 2776 res[1] = top + dragView.getDragRegion().height() / 2; 2777 2778 return res; 2779 } 2780 2781 private boolean isDragWidget(DragObject d) { 2782 return (d.dragInfo instanceof LauncherAppWidgetInfo || 2783 d.dragInfo instanceof PendingAddWidgetInfo); 2784 } 2785 private boolean isExternalDragWidget(DragObject d) { 2786 return d.dragSource != this && isDragWidget(d); 2787 } 2788 2789 public void onDragOver(DragObject d) { 2790 // Skip drag over events while we are dragging over side pages 2791 if (mInScrollArea) return; 2792 if (mIsSwitchingState) return; 2793 2794 Rect r = new Rect(); 2795 CellLayout layout = null; 2796 ItemInfo item = (ItemInfo) d.dragInfo; 2797 2798 // Ensure that we have proper spans for the item that we are dropping 2799 if (item.spanX < 0 || item.spanY < 0) throw new RuntimeException("Improper spans found"); 2800 mDragViewVisualCenter = getDragViewVisualCenter(d.x, d.y, d.xOffset, d.yOffset, 2801 d.dragView, mDragViewVisualCenter); 2802 2803 // Identify whether we have dragged over a side page 2804 if (isSmall()) { 2805 if (mLauncher.getHotseat() != null && !isExternalDragWidget(d)) { 2806 mLauncher.getHotseat().getHitRect(r); 2807 if (r.contains(d.x, d.y)) { 2808 layout = mLauncher.getHotseat().getLayout(); 2809 } 2810 } 2811 if (layout == null) { 2812 layout = findMatchingPageForDragOver(d.dragView, mDragViewVisualCenter[0], 2813 mDragViewVisualCenter[1], true); 2814 } 2815 if (layout != mDragTargetLayout) { 2816 // Cancel all intermediate folder states 2817 cleanupFolderCreation(d); 2818 2819 if (mDragTargetLayout != null) { 2820 mDragTargetLayout.setIsDragOverlapping(false); 2821 mDragTargetLayout.onDragExit(); 2822 } 2823 mDragTargetLayout = layout; 2824 if (mDragTargetLayout != null) { 2825 mDragTargetLayout.setIsDragOverlapping(true); 2826 mDragTargetLayout.onDragEnter(); 2827 } else { 2828 mLastDragOverView = null; 2829 } 2830 2831 boolean isInSpringLoadedMode = (mState == State.SPRING_LOADED); 2832 if (isInSpringLoadedMode) { 2833 if (mLauncher.isHotseatLayout(layout)) { 2834 mSpringLoadedDragController.cancel(); 2835 } else { 2836 mSpringLoadedDragController.setAlarm(mDragTargetLayout); 2837 } 2838 } 2839 } 2840 } else { 2841 // Test to see if we are over the hotseat otherwise just use the current page 2842 if (mLauncher.getHotseat() != null && !isDragWidget(d)) { 2843 mLauncher.getHotseat().getHitRect(r); 2844 if (r.contains(d.x, d.y)) { 2845 layout = mLauncher.getHotseat().getLayout(); 2846 } 2847 } 2848 if (layout == null) { 2849 layout = getCurrentDropLayout(); 2850 } 2851 if (layout != mDragTargetLayout) { 2852 if (mDragTargetLayout != null) { 2853 mDragTargetLayout.setIsDragOverlapping(false); 2854 mDragTargetLayout.onDragExit(); 2855 } 2856 mDragTargetLayout = layout; 2857 mDragTargetLayout.setIsDragOverlapping(true); 2858 mDragTargetLayout.onDragEnter(); 2859 } 2860 } 2861 2862 // Handle the drag over 2863 if (mDragTargetLayout != null) { 2864 final View child = (mDragInfo == null) ? null : mDragInfo.cell; 2865 2866 // We want the point to be mapped to the dragTarget. 2867 if (mLauncher.isHotseatLayout(mDragTargetLayout)) { 2868 mapPointFromSelfToSibling(mLauncher.getHotseat(), mDragViewVisualCenter); 2869 } else { 2870 mapPointFromSelfToChild(mDragTargetLayout, mDragViewVisualCenter, null); 2871 } 2872 ItemInfo info = (ItemInfo) d.dragInfo; 2873 2874 mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], 2875 (int) mDragViewVisualCenter[1], 1, 1, mDragTargetLayout, mTargetCell); 2876 final View dragOverView = mDragTargetLayout.getChildAt(mTargetCell[0], 2877 mTargetCell[1]); 2878 2879 boolean userFolderPending = willCreateUserFolder(info, mDragTargetLayout, 2880 mTargetCell, false); 2881 boolean isOverFolder = dragOverView instanceof FolderIcon; 2882 if (dragOverView != mLastDragOverView) { 2883 cancelFolderCreation(); 2884 if (mLastDragOverView != null && mLastDragOverView instanceof FolderIcon) { 2885 ((FolderIcon) mLastDragOverView).onDragExit(d.dragInfo); 2886 } 2887 } 2888 2889 if (userFolderPending && dragOverView != mLastDragOverView) { 2890 mFolderCreationAlarm.setOnAlarmListener(new 2891 FolderCreationAlarmListener(mDragTargetLayout, mTargetCell[0], mTargetCell[1])); 2892 mFolderCreationAlarm.setAlarm(FOLDER_CREATION_TIMEOUT); 2893 } 2894 2895 if (dragOverView != mLastDragOverView && isOverFolder) { 2896 ((FolderIcon) dragOverView).onDragEnter(d.dragInfo); 2897 if (mDragTargetLayout != null) { 2898 mDragTargetLayout.clearDragOutlines(); 2899 } 2900 } 2901 mLastDragOverView = dragOverView; 2902 2903 if (!mCreateUserFolderOnDrop && !isOverFolder) { 2904 mDragTargetLayout.visualizeDropLocation(child, mDragOutline, 2905 (int) mDragViewVisualCenter[0], (int) mDragViewVisualCenter[1], 2906 item.spanX, item.spanY); 2907 } 2908 } 2909 } 2910 2911 private void cleanupFolderCreation(DragObject d) { 2912 if (mDragFolderRingAnimator != null && mCreateUserFolderOnDrop) { 2913 mDragFolderRingAnimator.animateToNaturalState(); 2914 } 2915 if (mLastDragOverView != null && mLastDragOverView instanceof FolderIcon) { 2916 if (d != null) { 2917 ((FolderIcon) mLastDragOverView).onDragExit(d.dragInfo); 2918 } 2919 } 2920 mFolderCreationAlarm.cancelAlarm(); 2921 } 2922 2923 private void cancelFolderCreation() { 2924 if (mDragFolderRingAnimator != null && mCreateUserFolderOnDrop) { 2925 mDragFolderRingAnimator.animateToNaturalState(); 2926 } 2927 mCreateUserFolderOnDrop = false; 2928 mFolderCreationAlarm.cancelAlarm(); 2929 } 2930 2931 class FolderCreationAlarmListener implements OnAlarmListener { 2932 CellLayout layout; 2933 int cellX; 2934 int cellY; 2935 2936 public FolderCreationAlarmListener(CellLayout layout, int cellX, int cellY) { 2937 this.layout = layout; 2938 this.cellX = cellX; 2939 this.cellY = cellY; 2940 } 2941 2942 public void onAlarm(Alarm alarm) { 2943 if (mDragFolderRingAnimator == null) { 2944 mDragFolderRingAnimator = new FolderRingAnimator(mLauncher, null); 2945 } 2946 mDragFolderRingAnimator.setCell(cellX, cellY); 2947 mDragFolderRingAnimator.setCellLayout(layout); 2948 mDragFolderRingAnimator.animateToAcceptState(); 2949 layout.showFolderAccept(mDragFolderRingAnimator); 2950 layout.clearDragOutlines(); 2951 mCreateUserFolderOnDrop = true; 2952 } 2953 } 2954 2955 @Override 2956 public void getHitRect(Rect outRect) { 2957 // We want the workspace to have the whole area of the display (it will find the correct 2958 // cell layout to drop to in the existing drag/drop logic. 2959 final Display d = mLauncher.getWindowManager().getDefaultDisplay(); 2960 outRect.set(0, 0, d.getWidth(), d.getHeight()); 2961 } 2962 2963 /** 2964 * Add the item specified by dragInfo to the given layout. 2965 * @return true if successful 2966 */ 2967 public boolean addExternalItemToScreen(ItemInfo dragInfo, CellLayout layout) { 2968 if (layout.findCellForSpan(mTempEstimate, dragInfo.spanX, dragInfo.spanY)) { 2969 onDropExternal(dragInfo.dropPos, (ItemInfo) dragInfo, (CellLayout) layout, false); 2970 return true; 2971 } 2972 mLauncher.showOutOfSpaceMessage(); 2973 return false; 2974 } 2975 2976 private void onDropExternal(int[] touchXY, Object dragInfo, 2977 CellLayout cellLayout, boolean insertAtFirst) { 2978 onDropExternal(touchXY, dragInfo, cellLayout, insertAtFirst, null); 2979 } 2980 2981 /** 2982 * Drop an item that didn't originate on one of the workspace screens. 2983 * It may have come from Launcher (e.g. from all apps or customize), or it may have 2984 * come from another app altogether. 2985 * 2986 * NOTE: This can also be called when we are outside of a drag event, when we want 2987 * to add an item to one of the workspace screens. 2988 */ 2989 private void onDropExternal(final int[] touchXY, final Object dragInfo, 2990 final CellLayout cellLayout, boolean insertAtFirst, DragObject d) { 2991 final Runnable exitSpringLoadedRunnable = new Runnable() { 2992 @Override 2993 public void run() { 2994 mLauncher.exitSpringLoadedDragModeDelayed(true, false); 2995 } 2996 }; 2997 2998 ItemInfo info = (ItemInfo) dragInfo; 2999 int spanX = info.spanX; 3000 int spanY = info.spanY; 3001 if (mDragInfo != null) { 3002 spanX = mDragInfo.spanX; 3003 spanY = mDragInfo.spanY; 3004 } 3005 3006 final long container = mLauncher.isHotseatLayout(cellLayout) ? 3007 LauncherSettings.Favorites.CONTAINER_HOTSEAT : 3008 LauncherSettings.Favorites.CONTAINER_DESKTOP; 3009 final int screen = indexOfChild(cellLayout); 3010 if (!mLauncher.isHotseatLayout(cellLayout) && screen != mCurrentPage 3011 && mState != State.SPRING_LOADED) { 3012 snapToPage(screen); 3013 } 3014 3015 if (info instanceof PendingAddItemInfo) { 3016 final PendingAddItemInfo pendingInfo = (PendingAddItemInfo) dragInfo; 3017 3018 mTargetCell = findNearestVacantArea(touchXY[0], touchXY[1], spanX, spanY, null, 3019 cellLayout, mTargetCell); 3020 Runnable onAnimationCompleteRunnable = new Runnable() { 3021 @Override 3022 public void run() { 3023 // When dragging and dropping from customization tray, we deal with creating 3024 // widgets/shortcuts/folders in a slightly different way 3025 switch (pendingInfo.itemType) { 3026 case LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET: 3027 mLauncher.addAppWidgetFromDrop((PendingAddWidgetInfo) pendingInfo, 3028 container, screen, mTargetCell, null); 3029 break; 3030 case LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT: 3031 mLauncher.processShortcutFromDrop(pendingInfo.componentName, 3032 container, screen, mTargetCell, null); 3033 break; 3034 default: 3035 throw new IllegalStateException("Unknown item type: " + 3036 pendingInfo.itemType); 3037 } 3038 cellLayout.onDragExit(); 3039 } 3040 }; 3041 3042 // Now we animate the dragView, (ie. the widget or shortcut preview) into its final 3043 // location and size on the home screen. 3044 int loc[] = new int[2]; 3045 cellLayout.cellToPoint(mTargetCell[0], mTargetCell[1], loc); 3046 3047 RectF r = new RectF(); 3048 cellLayout.cellToRect(mTargetCell[0], mTargetCell[1], spanX, spanY, r); 3049 setFinalTransitionTransform(cellLayout); 3050 float cellLayoutScale = 3051 mLauncher.getDragLayer().getDescendantCoordRelativeToSelf(cellLayout, loc); 3052 resetTransitionTransform(cellLayout); 3053 3054 float dragViewScale = r.width() / d.dragView.getMeasuredWidth(); 3055 // The animation will scale the dragView about its center, so we need to center about 3056 // the final location. 3057 loc[0] -= (d.dragView.getMeasuredWidth() - cellLayoutScale * r.width()) / 2; 3058 loc[1] -= (d.dragView.getMeasuredHeight() - cellLayoutScale * r.height()) / 2; 3059 3060 mLauncher.getDragLayer().animateViewIntoPosition(d.dragView, loc, 3061 dragViewScale * cellLayoutScale, onAnimationCompleteRunnable); 3062 } else { 3063 // This is for other drag/drop cases, like dragging from All Apps 3064 View view = null; 3065 3066 switch (info.itemType) { 3067 case LauncherSettings.Favorites.ITEM_TYPE_APPLICATION: 3068 case LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT: 3069 if (info.container == NO_ID && info instanceof ApplicationInfo) { 3070 // Came from all apps -- make a copy 3071 info = new ShortcutInfo((ApplicationInfo) info); 3072 } 3073 view = mLauncher.createShortcut(R.layout.application, cellLayout, 3074 (ShortcutInfo) info); 3075 break; 3076 case LauncherSettings.Favorites.ITEM_TYPE_FOLDER: 3077 view = FolderIcon.fromXml(R.layout.folder_icon, mLauncher, cellLayout, 3078 (FolderInfo) info, mIconCache); 3079 break; 3080 default: 3081 throw new IllegalStateException("Unknown item type: " + info.itemType); 3082 } 3083 3084 // First we find the cell nearest to point at which the item is 3085 // dropped, without any consideration to whether there is an item there. 3086 if (touchXY != null) { 3087 mTargetCell = findNearestArea((int) touchXY[0], (int) touchXY[1], spanX, spanY, 3088 cellLayout, mTargetCell); 3089 d.postAnimationRunnable = exitSpringLoadedRunnable; 3090 if (createUserFolderIfNecessary(view, container, cellLayout, mTargetCell, true, 3091 d.dragView, d.postAnimationRunnable)) { 3092 return; 3093 } 3094 if (addToExistingFolderIfNecessary(view, cellLayout, mTargetCell, d, true)) { 3095 return; 3096 } 3097 } 3098 3099 if (touchXY != null) { 3100 // when dragging and dropping, just find the closest free spot 3101 mTargetCell = findNearestVacantArea(touchXY[0], touchXY[1], 1, 1, null, 3102 cellLayout, mTargetCell); 3103 } else { 3104 cellLayout.findCellForSpan(mTargetCell, 1, 1); 3105 } 3106 addInScreen(view, container, screen, mTargetCell[0], mTargetCell[1], info.spanX, 3107 info.spanY, insertAtFirst); 3108 cellLayout.onDropChild(view); 3109 cellLayout.animateDrop(); 3110 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) view.getLayoutParams(); 3111 cellLayout.getChildrenLayout().measureChild(view); 3112 3113 LauncherModel.addOrMoveItemInDatabase(mLauncher, info, container, screen, 3114 lp.cellX, lp.cellY); 3115 3116 if (d.dragView != null) { 3117 // We wrap the animation call in the temporary set and reset of the current 3118 // cellLayout to its final transform -- this means we animate the drag view to 3119 // the correct final location. 3120 setFinalTransitionTransform(cellLayout); 3121 mLauncher.getDragLayer().animateViewIntoPosition(d.dragView, view, 3122 exitSpringLoadedRunnable); 3123 resetTransitionTransform(cellLayout); 3124 } 3125 } 3126 } 3127 3128 public void setFinalTransitionTransform(CellLayout layout) { 3129 if (isSwitchingState()) { 3130 int index = indexOfChild(layout); 3131 mCurrentScaleX = layout.getScaleX(); 3132 mCurrentScaleY = layout.getScaleY(); 3133 mCurrentTranslationX = layout.getTranslationX(); 3134 mCurrentTranslationY = layout.getTranslationY(); 3135 mCurrentRotationY = layout.getRotationY(); 3136 layout.setScaleX(mNewScaleXs[index]); 3137 layout.setScaleY(mNewScaleYs[index]); 3138 layout.setTranslationX(mNewTranslationXs[index]); 3139 layout.setTranslationY(mNewTranslationYs[index]); 3140 layout.setRotationY(mNewRotationYs[index]); 3141 } 3142 } 3143 public void resetTransitionTransform(CellLayout layout) { 3144 if (isSwitchingState()) { 3145 mCurrentScaleX = layout.getScaleX(); 3146 mCurrentScaleY = layout.getScaleY(); 3147 mCurrentTranslationX = layout.getTranslationX(); 3148 mCurrentTranslationY = layout.getTranslationY(); 3149 mCurrentRotationY = layout.getRotationY(); 3150 layout.setScaleX(mCurrentScaleX); 3151 layout.setScaleY(mCurrentScaleY); 3152 layout.setTranslationX(mCurrentTranslationX); 3153 layout.setTranslationY(mCurrentTranslationY); 3154 layout.setRotationY(mCurrentRotationY); 3155 } 3156 } 3157 3158 /** 3159 * Return the current {@link CellLayout}, correctly picking the destination 3160 * screen while a scroll is in progress. 3161 */ 3162 public CellLayout getCurrentDropLayout() { 3163 return (CellLayout) getChildAt(mNextPage == INVALID_PAGE ? mCurrentPage : mNextPage); 3164 } 3165 3166 /** 3167 * Return the current CellInfo describing our current drag; this method exists 3168 * so that Launcher can sync this object with the correct info when the activity is created/ 3169 * destroyed 3170 * 3171 */ 3172 public CellLayout.CellInfo getDragInfo() { 3173 return mDragInfo; 3174 } 3175 3176 /** 3177 * Calculate the nearest cell where the given object would be dropped. 3178 * 3179 * pixelX and pixelY should be in the coordinate system of layout 3180 */ 3181 private int[] findNearestVacantArea(int pixelX, int pixelY, 3182 int spanX, int spanY, View ignoreView, CellLayout layout, int[] recycle) { 3183 return layout.findNearestVacantArea( 3184 pixelX, pixelY, spanX, spanY, ignoreView, recycle); 3185 } 3186 3187 /** 3188 * Calculate the nearest cell where the given object would be dropped. 3189 * 3190 * pixelX and pixelY should be in the coordinate system of layout 3191 */ 3192 private int[] findNearestArea(int pixelX, int pixelY, 3193 int spanX, int spanY, CellLayout layout, int[] recycle) { 3194 return layout.findNearestArea( 3195 pixelX, pixelY, spanX, spanY, recycle); 3196 } 3197 3198 void setup(Launcher launcher, DragController dragController) { 3199 mLauncher = launcher; 3200 mSpringLoadedDragController = new SpringLoadedDragController(mLauncher); 3201 mDragController = dragController; 3202 3203 // hardware layers on children are enabled on startup, but should be disabled until 3204 // needed 3205 updateChildrenLayersEnabled(); 3206 setWallpaperDimension(); 3207 } 3208 3209 /** 3210 * Called at the end of a drag which originated on the workspace. 3211 */ 3212 public void onDropCompleted(View target, DragObject d, boolean success) { 3213 if (success) { 3214 if (target != this) { 3215 if (mDragInfo != null) { 3216 getParentCellLayoutForView(mDragInfo.cell).removeView(mDragInfo.cell); 3217 if (mDragInfo.cell instanceof DropTarget) { 3218 mDragController.removeDropTarget((DropTarget) mDragInfo.cell); 3219 } 3220 } 3221 } 3222 } else if (mDragInfo != null) { 3223 // NOTE: When 'success' is true, onDragExit is called by the DragController before 3224 // calling onDropCompleted(). We call it ourselves here, but maybe this should be 3225 // moved into DragController.cancelDrag(). 3226 doDragExit(null); 3227 CellLayout cellLayout; 3228 if (mLauncher.isHotseatLayout(target)) { 3229 cellLayout = mLauncher.getHotseat().getLayout(); 3230 } else { 3231 cellLayout = (CellLayout) getChildAt(mDragInfo.screen); 3232 } 3233 cellLayout.onDropChild(mDragInfo.cell); 3234 } 3235 mDragOutline = null; 3236 mDragInfo = null; 3237 } 3238 3239 public boolean isDropEnabled() { 3240 return true; 3241 } 3242 3243 @Override 3244 protected void onRestoreInstanceState(Parcelable state) { 3245 super.onRestoreInstanceState(state); 3246 Launcher.setScreen(mCurrentPage); 3247 } 3248 3249 @Override 3250 public void scrollLeft() { 3251 if (!isSmall() && !mIsSwitchingState) { 3252 super.scrollLeft(); 3253 } 3254 Folder openFolder = getOpenFolder(); 3255 if (openFolder != null) { 3256 openFolder.completeDragExit(); 3257 } 3258 } 3259 3260 @Override 3261 public void scrollRight() { 3262 if (!isSmall() && !mIsSwitchingState) { 3263 super.scrollRight(); 3264 } 3265 Folder openFolder = getOpenFolder(); 3266 if (openFolder != null) { 3267 openFolder.completeDragExit(); 3268 } 3269 } 3270 3271 @Override 3272 public void onEnterScrollArea(int x, int y, int direction) { 3273 // Ignore the scroll area if we are dragging over the hot seat 3274 if (mLauncher.getHotseat() != null) { 3275 Rect r = new Rect(); 3276 mLauncher.getHotseat().getHitRect(r); 3277 if (r.contains(x, y)) { 3278 return; 3279 } 3280 } 3281 3282 if (!isSmall() && !mIsSwitchingState) { 3283 mInScrollArea = true; 3284 3285 final int page = mCurrentPage + (direction == DragController.SCROLL_LEFT ? -1 : 1); 3286 final CellLayout layout = (CellLayout) getChildAt(page); 3287 cancelFolderCreation(); 3288 3289 if (layout != null) { 3290 // Exit the current layout and mark the overlapping layout 3291 if (mDragTargetLayout != null) { 3292 mDragTargetLayout.setIsDragOverlapping(false); 3293 mDragTargetLayout.onDragExit(); 3294 } 3295 mDragTargetLayout = layout; 3296 mDragTargetLayout.setIsDragOverlapping(true); 3297 3298 // Workspace is responsible for drawing the edge glow on adjacent pages, 3299 // so we need to redraw the workspace when this may have changed. 3300 invalidate(); 3301 } 3302 } 3303 } 3304 3305 @Override 3306 public void onExitScrollArea() { 3307 if (mInScrollArea) { 3308 if (mDragTargetLayout != null) { 3309 // Unmark the overlapping layout and re-enter the current layout 3310 mDragTargetLayout.setIsDragOverlapping(false); 3311 mDragTargetLayout = getCurrentDropLayout(); 3312 mDragTargetLayout.onDragEnter(); 3313 3314 // Workspace is responsible for drawing the edge glow on adjacent pages, 3315 // so we need to redraw the workspace when this may have changed. 3316 invalidate(); 3317 } 3318 mInScrollArea = false; 3319 } 3320 } 3321 3322 private void onResetScrollArea() { 3323 if (mDragTargetLayout != null) { 3324 // Unmark the overlapping layout 3325 mDragTargetLayout.setIsDragOverlapping(false); 3326 3327 // Workspace is responsible for drawing the edge glow on adjacent pages, 3328 // so we need to redraw the workspace when this may have changed. 3329 invalidate(); 3330 } 3331 mInScrollArea = false; 3332 } 3333 3334 /** 3335 * Returns a specific CellLayout 3336 */ 3337 CellLayout getParentCellLayoutForView(View v) { 3338 ArrayList<CellLayout> layouts = getWorkspaceAndHotseatCellLayouts(); 3339 for (CellLayout layout : layouts) { 3340 if (layout.getChildrenLayout().indexOfChild(v) > -1) { 3341 return layout; 3342 } 3343 } 3344 return null; 3345 } 3346 3347 /** 3348 * Returns a list of all the CellLayouts in the workspace. 3349 */ 3350 ArrayList<CellLayout> getWorkspaceAndHotseatCellLayouts() { 3351 ArrayList<CellLayout> layouts = new ArrayList<CellLayout>(); 3352 int screenCount = getChildCount(); 3353 for (int screen = 0; screen < screenCount; screen++) { 3354 layouts.add(((CellLayout) getChildAt(screen))); 3355 } 3356 if (mLauncher.getHotseat() != null) { 3357 layouts.add(mLauncher.getHotseat().getLayout()); 3358 } 3359 return layouts; 3360 } 3361 3362 /** 3363 * We should only use this to search for specific children. Do not use this method to modify 3364 * CellLayoutChildren directly. 3365 */ 3366 ArrayList<CellLayoutChildren> getWorkspaceAndHotseatCellLayoutChildren() { 3367 ArrayList<CellLayoutChildren> childrenLayouts = new ArrayList<CellLayoutChildren>(); 3368 int screenCount = getChildCount(); 3369 for (int screen = 0; screen < screenCount; screen++) { 3370 childrenLayouts.add(((CellLayout) getChildAt(screen)).getChildrenLayout()); 3371 } 3372 if (mLauncher.getHotseat() != null) { 3373 childrenLayouts.add(mLauncher.getHotseat().getLayout().getChildrenLayout()); 3374 } 3375 return childrenLayouts; 3376 } 3377 3378 public Folder getFolderForTag(Object tag) { 3379 ArrayList<CellLayoutChildren> childrenLayouts = getWorkspaceAndHotseatCellLayoutChildren(); 3380 for (CellLayoutChildren layout: childrenLayouts) { 3381 int count = layout.getChildCount(); 3382 for (int i = 0; i < count; i++) { 3383 View child = layout.getChildAt(i); 3384 if (child instanceof Folder) { 3385 Folder f = (Folder) child; 3386 if (f.getInfo() == tag && f.getInfo().opened) { 3387 return f; 3388 } 3389 } 3390 } 3391 } 3392 return null; 3393 } 3394 3395 public View getViewForTag(Object tag) { 3396 ArrayList<CellLayoutChildren> childrenLayouts = getWorkspaceAndHotseatCellLayoutChildren(); 3397 for (CellLayoutChildren layout: childrenLayouts) { 3398 int count = layout.getChildCount(); 3399 for (int i = 0; i < count; i++) { 3400 View child = layout.getChildAt(i); 3401 if (child.getTag() == tag) { 3402 return child; 3403 } 3404 } 3405 } 3406 return null; 3407 } 3408 3409 void clearDropTargets() { 3410 ArrayList<CellLayoutChildren> childrenLayouts = getWorkspaceAndHotseatCellLayoutChildren(); 3411 for (CellLayoutChildren layout: childrenLayouts) { 3412 int childCount = layout.getChildCount(); 3413 for (int j = 0; j < childCount; j++) { 3414 View v = layout.getChildAt(j); 3415 if (v instanceof DropTarget) { 3416 mDragController.removeDropTarget((DropTarget) v); 3417 } 3418 } 3419 } 3420 } 3421 3422 void removeItems(final ArrayList<ApplicationInfo> apps) { 3423 final AppWidgetManager widgets = AppWidgetManager.getInstance(getContext()); 3424 3425 final HashSet<String> packageNames = new HashSet<String>(); 3426 final int appCount = apps.size(); 3427 for (int i = 0; i < appCount; i++) { 3428 packageNames.add(apps.get(i).componentName.getPackageName()); 3429 } 3430 3431 ArrayList<CellLayout> cellLayouts = getWorkspaceAndHotseatCellLayouts(); 3432 for (final CellLayout layoutParent: cellLayouts) { 3433 final ViewGroup layout = layoutParent.getChildrenLayout(); 3434 3435 // Avoid ANRs by treating each screen separately 3436 post(new Runnable() { 3437 public void run() { 3438 final ArrayList<View> childrenToRemove = new ArrayList<View>(); 3439 childrenToRemove.clear(); 3440 3441 int childCount = layout.getChildCount(); 3442 for (int j = 0; j < childCount; j++) { 3443 final View view = layout.getChildAt(j); 3444 Object tag = view.getTag(); 3445 3446 if (tag instanceof ShortcutInfo) { 3447 final ShortcutInfo info = (ShortcutInfo) tag; 3448 final Intent intent = info.intent; 3449 final ComponentName name = intent.getComponent(); 3450 3451 if (Intent.ACTION_MAIN.equals(intent.getAction()) && name != null) { 3452 for (String packageName: packageNames) { 3453 if (packageName.equals(name.getPackageName())) { 3454 LauncherModel.deleteItemFromDatabase(mLauncher, info); 3455 childrenToRemove.add(view); 3456 } 3457 } 3458 } 3459 } else if (tag instanceof FolderInfo) { 3460 final FolderInfo info = (FolderInfo) tag; 3461 final ArrayList<ShortcutInfo> contents = info.contents; 3462 final int contentsCount = contents.size(); 3463 final ArrayList<ShortcutInfo> appsToRemoveFromFolder = 3464 new ArrayList<ShortcutInfo>(); 3465 3466 for (int k = 0; k < contentsCount; k++) { 3467 final ShortcutInfo appInfo = contents.get(k); 3468 final Intent intent = appInfo.intent; 3469 final ComponentName name = intent.getComponent(); 3470 3471 if (Intent.ACTION_MAIN.equals(intent.getAction()) && name != null) { 3472 for (String packageName: packageNames) { 3473 if (packageName.equals(name.getPackageName())) { 3474 appsToRemoveFromFolder.add(appInfo); 3475 } 3476 } 3477 } 3478 } 3479 for (ShortcutInfo item: appsToRemoveFromFolder) { 3480 info.remove(item); 3481 LauncherModel.deleteItemFromDatabase(mLauncher, item); 3482 } 3483 } else if (tag instanceof LauncherAppWidgetInfo) { 3484 final LauncherAppWidgetInfo info = (LauncherAppWidgetInfo) tag; 3485 final AppWidgetProviderInfo provider = 3486 widgets.getAppWidgetInfo(info.appWidgetId); 3487 if (provider != null) { 3488 for (String packageName: packageNames) { 3489 if (packageName.equals(provider.provider.getPackageName())) { 3490 LauncherModel.deleteItemFromDatabase(mLauncher, info); 3491 childrenToRemove.add(view); 3492 } 3493 } 3494 } 3495 } 3496 } 3497 3498 childCount = childrenToRemove.size(); 3499 for (int j = 0; j < childCount; j++) { 3500 View child = childrenToRemove.get(j); 3501 // Note: We can not remove the view directly from CellLayoutChildren as this 3502 // does not re-mark the spaces as unoccupied. 3503 layoutParent.removeViewInLayout(child); 3504 if (child instanceof DropTarget) { 3505 mDragController.removeDropTarget((DropTarget)child); 3506 } 3507 } 3508 3509 if (childCount > 0) { 3510 layout.requestLayout(); 3511 layout.invalidate(); 3512 } 3513 } 3514 }); 3515 } 3516 } 3517 3518 void updateShortcuts(ArrayList<ApplicationInfo> apps) { 3519 ArrayList<CellLayoutChildren> childrenLayouts = getWorkspaceAndHotseatCellLayoutChildren(); 3520 for (CellLayoutChildren layout: childrenLayouts) { 3521 int childCount = layout.getChildCount(); 3522 for (int j = 0; j < childCount; j++) { 3523 final View view = layout.getChildAt(j); 3524 Object tag = view.getTag(); 3525 if (tag instanceof ShortcutInfo) { 3526 ShortcutInfo info = (ShortcutInfo)tag; 3527 // We need to check for ACTION_MAIN otherwise getComponent() might 3528 // return null for some shortcuts (for instance, for shortcuts to 3529 // web pages.) 3530 final Intent intent = info.intent; 3531 final ComponentName name = intent.getComponent(); 3532 if (info.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPLICATION && 3533 Intent.ACTION_MAIN.equals(intent.getAction()) && name != null) { 3534 final int appCount = apps.size(); 3535 for (int k = 0; k < appCount; k++) { 3536 ApplicationInfo app = apps.get(k); 3537 if (app.componentName.equals(name)) { 3538 info.setIcon(mIconCache.getIcon(info.intent)); 3539 ((TextView)view).setCompoundDrawablesWithIntrinsicBounds(null, 3540 new FastBitmapDrawable(info.getIcon(mIconCache)), 3541 null, null); 3542 } 3543 } 3544 } 3545 } 3546 } 3547 } 3548 } 3549 3550 void moveToDefaultScreen(boolean animate) { 3551 if (!isSmall()) { 3552 if (animate) { 3553 snapToPage(mDefaultPage); 3554 } else { 3555 setCurrentPage(mDefaultPage); 3556 } 3557 } 3558 getChildAt(mDefaultPage).requestFocus(); 3559 } 3560 3561 @Override 3562 public void syncPages() { 3563 } 3564 3565 @Override 3566 public void syncPageItems(int page) { 3567 } 3568 3569 @Override 3570 protected String getCurrentPageDescription() { 3571 int page = (mNextPage != INVALID_PAGE) ? mNextPage : mCurrentPage; 3572 return String.format(mContext.getString(R.string.workspace_scroll_format), 3573 page + 1, getChildCount()); 3574 } 3575 3576 public void getLocationInDragLayer(int[] loc) { 3577 mLauncher.getDragLayer().getLocationInDragLayer(this, loc); 3578 } 3579 3580 /** 3581 * Return true because we want the scrolling indicator to stretch to fit the space. 3582 */ 3583 protected boolean hasElasticScrollIndicator() { 3584 return true; 3585 } 3586 3587 void showDockDivider(boolean immediately) { 3588 final ViewGroup parent = (ViewGroup) getParent(); 3589 final View qsbDivider = (ImageView) (parent.findViewById(R.id.qsb_divider)); 3590 final View dockDivider = (ImageView) (parent.findViewById(R.id.dock_divider)); 3591 if (qsbDivider != null && dockDivider != null) { 3592 qsbDivider.setVisibility(View.VISIBLE); 3593 dockDivider.setVisibility(View.VISIBLE); 3594 if (mDividerAnimator != null) { 3595 mDividerAnimator.cancel(); 3596 mDividerAnimator = null; 3597 } 3598 if (immediately) { 3599 qsbDivider.setAlpha(1f); 3600 dockDivider.setAlpha(1f); 3601 } else { 3602 mDividerAnimator = new AnimatorSet(); 3603 mDividerAnimator.playTogether(ObjectAnimator.ofFloat(qsbDivider, "alpha", 1f), 3604 ObjectAnimator.ofFloat(dockDivider, "alpha", 1f)); 3605 mDividerAnimator.setDuration(sScrollIndicatorFadeInDuration); 3606 mDividerAnimator.start(); 3607 } 3608 } 3609 } 3610 3611 void hideDockDivider(boolean immediately) { 3612 final ViewGroup parent = (ViewGroup) getParent(); 3613 final View qsbDivider = (ImageView) (parent.findViewById(R.id.qsb_divider)); 3614 final View dockDivider = (ImageView) (parent.findViewById(R.id.dock_divider)); 3615 if (qsbDivider != null && dockDivider != null) { 3616 if (mDividerAnimator != null) { 3617 mDividerAnimator.cancel(); 3618 mDividerAnimator = null; 3619 } 3620 if (immediately) { 3621 qsbDivider.setVisibility(View.GONE); 3622 dockDivider.setVisibility(View.GONE); 3623 qsbDivider.setAlpha(0f); 3624 dockDivider.setAlpha(0f); 3625 } else { 3626 mDividerAnimator = new AnimatorSet(); 3627 mDividerAnimator.playTogether(ObjectAnimator.ofFloat(qsbDivider, "alpha", 0f), 3628 ObjectAnimator.ofFloat(dockDivider, "alpha", 0f)); 3629 mDividerAnimator.addListener(new AnimatorListenerAdapter() { 3630 private boolean cancelled = false; 3631 @Override 3632 public void onAnimationCancel(android.animation.Animator animation) { 3633 cancelled = true; 3634 } 3635 @Override 3636 public void onAnimationEnd(android.animation.Animator animation) { 3637 if (!cancelled) { 3638 qsbDivider.setVisibility(View.GONE); 3639 dockDivider.setVisibility(View.GONE); 3640 } 3641 } 3642 }); 3643 mDividerAnimator.setDuration(sScrollIndicatorFadeOutDuration); 3644 mDividerAnimator.start(); 3645 } 3646 } 3647 } 3648} 3649