Workspace.java revision 70fc438583779ef903541bf9ec546a8235a18785
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.Animator.AnimatorListener; 21import android.animation.AnimatorListenerAdapter; 22import android.animation.AnimatorSet; 23import android.animation.ObjectAnimator; 24import android.animation.TimeInterpolator; 25import android.animation.ValueAnimator; 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.res.Resources; 37import android.content.res.TypedArray; 38import android.graphics.Bitmap; 39import android.graphics.Camera; 40import android.graphics.Canvas; 41import android.graphics.Matrix; 42import android.graphics.Paint; 43import android.graphics.PorterDuff; 44import android.graphics.Rect; 45import android.graphics.RectF; 46import android.graphics.Region.Op; 47import android.graphics.drawable.Drawable; 48import android.os.IBinder; 49import android.os.Parcelable; 50import android.util.AttributeSet; 51import android.util.DisplayMetrics; 52import android.util.Log; 53import android.util.Pair; 54import android.view.Display; 55import android.view.DragEvent; 56import android.view.MotionEvent; 57import android.view.View; 58import android.view.ViewGroup; 59import android.view.animation.DecelerateInterpolator; 60import android.widget.ImageView; 61import android.widget.TextView; 62import android.widget.Toast; 63 64import com.android.launcher.R; 65import com.android.launcher2.FolderIcon.FolderRingAnimator; 66import com.android.launcher2.InstallWidgetReceiver.WidgetMimeTypeHandlerData; 67 68import java.util.ArrayList; 69import java.util.HashSet; 70import java.util.List; 71 72/** 73 * The workspace is a wide area with a wallpaper and a finite number of pages. 74 * Each page contains a number of icons, folders or widgets the user can 75 * interact with. A workspace is meant to be used with a fixed width only. 76 */ 77public class Workspace extends SmoothPagedView 78 implements DropTarget, DragSource, DragScroller, View.OnTouchListener, 79 DragController.DragListener { 80 @SuppressWarnings({"UnusedDeclaration"}) 81 private static final String TAG = "Launcher.Workspace"; 82 83 // Y rotation to apply to the workspace screens 84 private static final float WORKSPACE_ROTATION = 12.5f; 85 86 // These are extra scale factors to apply to the mini home screens 87 // so as to achieve the desired transform 88 private static final float EXTRA_SCALE_FACTOR_0 = 0.972f; 89 private static final float EXTRA_SCALE_FACTOR_1 = 1.0f; 90 private static final float EXTRA_SCALE_FACTOR_2 = 1.10f; 91 92 private static final int CHILDREN_OUTLINE_FADE_OUT_DELAY = 0; 93 private static final int CHILDREN_OUTLINE_FADE_OUT_DURATION = 375; 94 private static final int CHILDREN_OUTLINE_FADE_IN_DURATION = 100; 95 96 private static final int BACKGROUND_FADE_OUT_DURATION = 350; 97 private static final int BACKGROUND_FADE_IN_DURATION = 350; 98 99 private static final int ADJACENT_SCREEN_DROP_DURATION = 300; 100 101 // These animators are used to fade the children's outlines 102 private ObjectAnimator mChildrenOutlineFadeInAnimation; 103 private ObjectAnimator mChildrenOutlineFadeOutAnimation; 104 private float mChildrenOutlineAlpha = 0; 105 106 // These properties refer to the background protection gradient used for AllApps and Customize 107 private ValueAnimator mBackgroundFadeInAnimation; 108 private ValueAnimator mBackgroundFadeOutAnimation; 109 private Drawable mBackground; 110 boolean mDrawBackground = true; 111 private float mBackgroundAlpha = 0; 112 private float mOverScrollMaxBackgroundAlpha = 0.0f; 113 private int mOverScrollPageIndex = -1; 114 private AnimatorSet mDividerAnimator; 115 116 private final WallpaperManager mWallpaperManager; 117 private IBinder mWindowToken; 118 119 private int mDefaultPage; 120 121 /** 122 * CellInfo for the cell that is currently being dragged 123 */ 124 private CellLayout.CellInfo mDragInfo; 125 126 /** 127 * Target drop area calculated during last acceptDrop call. 128 */ 129 private int[] mTargetCell = new int[2]; 130 131 /** 132 * The CellLayout that is currently being dragged over 133 */ 134 private CellLayout mDragTargetLayout = null; 135 136 private Launcher mLauncher; 137 private IconCache mIconCache; 138 private DragController mDragController; 139 140 // These are temporary variables to prevent having to allocate a new object just to 141 // return an (x, y) value from helper functions. Do NOT use them to maintain other state. 142 private int[] mTempCell = new int[2]; 143 private int[] mTempEstimate = new int[2]; 144 private float[] mDragViewVisualCenter = new float[2]; 145 private float[] mTempDragCoordinates = new float[2]; 146 private float[] mTempCellLayoutCenterCoordinates = new float[2]; 147 private float[] mTempDragBottomRightCoordinates = new float[2]; 148 private Matrix mTempInverseMatrix = new Matrix(); 149 150 private SpringLoadedDragController mSpringLoadedDragController; 151 private float mSpringLoadedShrinkFactor; 152 153 private static final int DEFAULT_CELL_COUNT_X = 4; 154 private static final int DEFAULT_CELL_COUNT_Y = 4; 155 156 // State variable that indicates whether the pages are small (ie when you're 157 // in all apps or customize mode) 158 159 enum State { NORMAL, SPRING_LOADED, SMALL }; 160 private State mState; 161 private boolean mIsSwitchingState = false; 162 163 private boolean mSwitchStateAfterFirstLayout = false; 164 private State mStateAfterFirstLayout; 165 166 private AnimatorSet mAnimator; 167 private AnimatorListener mShrinkAnimationListener; 168 private AnimatorListener mUnshrinkAnimationListener; 169 // Working around the face that cancelled animations may not actually be cancelled if they 170 // are cancelled before starting 171 private boolean mShrinkAnimationEnabled; 172 private boolean mUnshrinkAnimationEnabled; 173 174 boolean mAnimatingViewIntoPlace = false; 175 boolean mIsDragOccuring = false; 176 boolean mChildrenLayersEnabled = true; 177 178 /** Is the user is dragging an item near the edge of a page? */ 179 private boolean mInScrollArea = false; 180 181 private final HolographicOutlineHelper mOutlineHelper = new HolographicOutlineHelper(); 182 private Bitmap mDragOutline = null; 183 private final Rect mTempRect = new Rect(); 184 private final int[] mTempXY = new int[2]; 185 private int mDragViewMultiplyColor; 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 mDragViewMultiplyColor = res.getColor(R.color.drag_view_multiply_color); 310 311 // if the value is manually specified, use that instead 312 cellCountX = a.getInt(R.styleable.Workspace_cellCountX, cellCountX); 313 cellCountY = a.getInt(R.styleable.Workspace_cellCountY, cellCountY); 314 mDefaultPage = a.getInt(R.styleable.Workspace_defaultScreen, 1); 315 a.recycle(); 316 317 LauncherModel.updateWorkspaceLayoutCells(cellCountX, cellCountY); 318 setHapticFeedbackEnabled(false); 319 320 initWorkspace(); 321 322 // Disable multitouch across the workspace/all apps/customize tray 323 setMotionEventSplittingEnabled(true); 324 } 325 326 public void onDragStart(DragSource source, Object info, int dragAction) { 327 mIsDragOccuring = true; 328 updateChildrenLayersEnabled(); 329 mLauncher.lockScreenOrientation(); 330 } 331 332 public void onDragEnd() { 333 mIsDragOccuring = false; 334 updateChildrenLayersEnabled(); 335 mLauncher.unlockScreenOrientation(); 336 } 337 338 /** 339 * Initializes various states for this workspace. 340 */ 341 protected void initWorkspace() { 342 Context context = getContext(); 343 mCurrentPage = mDefaultPage; 344 Launcher.setScreen(mCurrentPage); 345 LauncherApplication app = (LauncherApplication)context.getApplicationContext(); 346 mIconCache = app.getIconCache(); 347 mExternalDragOutlinePaint.setAntiAlias(true); 348 setWillNotDraw(false); 349 350 try { 351 final Resources res = getResources(); 352 mBackground = res.getDrawable(R.drawable.apps_customize_bg); 353 } catch (Resources.NotFoundException e) { 354 // In this case, we will skip drawing background protection 355 } 356 357 mUnshrinkAnimationListener = new AnimatorListenerAdapter() { 358 @Override 359 public void onAnimationStart(Animator animation) { 360 mIsSwitchingState = true; 361 } 362 363 @Override 364 public void onAnimationEnd(Animator animation) { 365 mIsSwitchingState = false; 366 mSyncWallpaperOffsetWithScroll = true; 367 mWallpaperOffset.setOverrideHorizontalCatchupConstant(false); 368 mAnimator = null; 369 updateChildrenLayersEnabled(); 370 } 371 }; 372 mShrinkAnimationListener = new AnimatorListenerAdapter() { 373 @Override 374 public void onAnimationStart(Animator animation) { 375 mIsSwitchingState = true; 376 } 377 @Override 378 public void onAnimationEnd(Animator animation) { 379 mIsSwitchingState = false; 380 mWallpaperOffset.setOverrideHorizontalCatchupConstant(false); 381 mAnimator = null; 382 } 383 }; 384 mSnapVelocity = 600; 385 mWallpaperOffset = new WallpaperOffsetInterpolator(); 386 } 387 388 @Override 389 protected int getScrollMode() { 390 return SmoothPagedView.X_LARGE_MODE; 391 } 392 393 private void onAddView(View child) { 394 if (!(child instanceof CellLayout)) { 395 throw new IllegalArgumentException("A Workspace can only have CellLayout children."); 396 } 397 CellLayout cl = ((CellLayout) child); 398 cl.setOnInterceptTouchListener(this); 399 cl.setClickable(true); 400 cl.enableHardwareLayers(); 401 } 402 403 @Override 404 public void addView(View child, int index, LayoutParams params) { 405 onAddView(child); 406 super.addView(child, index, params); 407 } 408 409 @Override 410 public void addView(View child) { 411 onAddView(child); 412 super.addView(child); 413 } 414 415 @Override 416 public void addView(View child, int index) { 417 onAddView(child); 418 super.addView(child, index); 419 } 420 421 @Override 422 public void addView(View child, int width, int height) { 423 onAddView(child); 424 super.addView(child, width, height); 425 } 426 427 @Override 428 public void addView(View child, LayoutParams params) { 429 onAddView(child); 430 super.addView(child, params); 431 } 432 433 /** 434 * @return The open folder on the current screen, or null if there is none 435 */ 436 Folder getOpenFolder() { 437 DragLayer dragLayer = mLauncher.getDragLayer(); 438 int count = dragLayer.getChildCount(); 439 for (int i = 0; i < count; i++) { 440 View child = dragLayer.getChildAt(i); 441 if (child instanceof Folder) { 442 Folder folder = (Folder) child; 443 if (folder.getInfo().opened) 444 return folder; 445 } 446 } 447 return null; 448 } 449 450 boolean isTouchActive() { 451 return mTouchState != TOUCH_STATE_REST; 452 } 453 454 /** 455 * Adds the specified child in the specified screen. The position and dimension of 456 * the child are defined by x, y, spanX and spanY. 457 * 458 * @param child The child to add in one of the workspace's screens. 459 * @param screen The screen in which to add the child. 460 * @param x The X position of the child in the screen's grid. 461 * @param y The Y position of the child in the screen's grid. 462 * @param spanX The number of cells spanned horizontally by the child. 463 * @param spanY The number of cells spanned vertically by the child. 464 */ 465 void addInScreen(View child, long container, int screen, int x, int y, int spanX, int spanY) { 466 addInScreen(child, container, screen, x, y, spanX, spanY, false); 467 } 468 469 /** 470 * Adds the specified child in the specified screen. The position and dimension of 471 * the child are defined by x, y, spanX and spanY. 472 * 473 * @param child The child to add in one of the workspace's screens. 474 * @param screen The screen in which to add the child. 475 * @param x The X position of the child in the screen's grid. 476 * @param y The Y position of the child in the screen's grid. 477 * @param spanX The number of cells spanned horizontally by the child. 478 * @param spanY The number of cells spanned vertically by the child. 479 * @param insert When true, the child is inserted at the beginning of the children list. 480 */ 481 void addInScreen(View child, long container, int screen, int x, int y, int spanX, int spanY, 482 boolean insert) { 483 if (container == LauncherSettings.Favorites.CONTAINER_DESKTOP) { 484 if (screen < 0 || screen >= getChildCount()) { 485 Log.e(TAG, "The screen must be >= 0 and < " + getChildCount() 486 + " (was " + screen + "); skipping child"); 487 return; 488 } 489 } 490 491 final CellLayout layout; 492 if (container == LauncherSettings.Favorites.CONTAINER_HOTSEAT) { 493 layout = mLauncher.getHotseat().getLayout(); 494 child.setOnKeyListener(null); 495 496 if (screen < 0) { 497 screen = mLauncher.getHotseat().getOrderInHotseat(x, y); 498 } else { 499 // Note: We do this to ensure that the hotseat is always laid out in the orientation 500 // of the hotseat in order regardless of which orientation they were added 501 x = mLauncher.getHotseat().getCellXFromOrder(screen); 502 y = mLauncher.getHotseat().getCellYFromOrder(screen); 503 } 504 } else { 505 layout = (CellLayout) getChildAt(screen); 506 child.setOnKeyListener(new BubbleTextViewKeyEventListener()); 507 } 508 509 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) child.getLayoutParams(); 510 if (lp == null) { 511 lp = new CellLayout.LayoutParams(x, y, spanX, spanY); 512 } else { 513 lp.cellX = x; 514 lp.cellY = y; 515 lp.cellHSpan = spanX; 516 lp.cellVSpan = spanY; 517 } 518 519 if (spanX < 0 && spanY < 0) { 520 lp.isLockedToGrid = false; 521 } 522 523 // Get the canonical child id to uniquely represent this view in this screen 524 int childId = LauncherModel.getCellLayoutChildId(container, screen, x, y, spanX, spanY); 525 boolean markCellsAsOccupied = !(child instanceof Folder); 526 if (!layout.addViewToCellLayout(child, insert ? 0 : -1, childId, lp, markCellsAsOccupied)) { 527 // TODO: This branch occurs when the workspace is adding views 528 // outside of the defined grid 529 // maybe we should be deleting these items from the LauncherModel? 530 Log.w(TAG, "Failed to add to item at (" + lp.cellX + "," + lp.cellY + ") to CellLayout"); 531 } 532 533 if (!(child instanceof Folder)) { 534 child.setHapticFeedbackEnabled(false); 535 child.setOnLongClickListener(mLongClickListener); 536 } 537 if (child instanceof DropTarget) { 538 mDragController.addDropTarget((DropTarget) child); 539 } 540 } 541 542 /** 543 * Check if the point (x, y) hits a given page. 544 */ 545 private boolean hitsPage(int index, float x, float y) { 546 final View page = getChildAt(index); 547 if (page != null) { 548 float[] localXY = { x, y }; 549 mapPointFromSelfToChild(page, localXY); 550 return (localXY[0] >= 0 && localXY[0] < page.getWidth() 551 && localXY[1] >= 0 && localXY[1] < page.getHeight()); 552 } 553 return false; 554 } 555 556 @Override 557 protected boolean hitsPreviousPage(float x, float y) { 558 // mNextPage is set to INVALID_PAGE whenever we are stationary. 559 // Calculating "next page" this way ensures that you scroll to whatever page you tap on 560 final int current = (mNextPage == INVALID_PAGE) ? mCurrentPage : mNextPage; 561 return hitsPage(current - 1, x, y); 562 } 563 564 @Override 565 protected boolean hitsNextPage(float x, float y) { 566 // mNextPage is set to INVALID_PAGE whenever we are stationary. 567 // Calculating "next page" this way ensures that you scroll to whatever page you tap on 568 final int current = (mNextPage == INVALID_PAGE) ? mCurrentPage : mNextPage; 569 return hitsPage(current + 1, x, y); 570 } 571 572 /** 573 * Called directly from a CellLayout (not by the framework), after we've been added as a 574 * listener via setOnInterceptTouchEventListener(). This allows us to tell the CellLayout 575 * that it should intercept touch events, which is not something that is normally supported. 576 */ 577 @Override 578 public boolean onTouch(View v, MotionEvent event) { 579 return (isSmall() || mIsSwitchingState); 580 } 581 582 public boolean isSwitchingState() { 583 return mIsSwitchingState; 584 } 585 586 protected void onWindowVisibilityChanged (int visibility) { 587 mLauncher.onWindowVisibilityChanged(visibility); 588 } 589 590 @Override 591 public boolean dispatchUnhandledMove(View focused, int direction) { 592 if (isSmall() || mIsSwitchingState) { 593 // when the home screens are shrunken, shouldn't allow side-scrolling 594 return false; 595 } 596 return super.dispatchUnhandledMove(focused, direction); 597 } 598 599 @Override 600 public boolean onInterceptTouchEvent(MotionEvent ev) { 601 if (ev.getAction() == MotionEvent.ACTION_DOWN) { 602 mXDown = ev.getX(); 603 mYDown = ev.getY(); 604 } 605 606 return super.onInterceptTouchEvent(ev); 607 } 608 609 @Override 610 protected void determineScrollingStart(MotionEvent ev) { 611 if (!isSmall() && !mIsSwitchingState) { 612 float deltaX = Math.abs(ev.getX() - mXDown); 613 float deltaY = Math.abs(ev.getY() - mYDown); 614 615 if (Float.compare(deltaX, 0f) == 0) return; 616 617 float slope = deltaY / deltaX; 618 float theta = (float) Math.atan(slope); 619 620 if (deltaX > mTouchSlop || deltaY > mTouchSlop) { 621 cancelCurrentPageLongPress(); 622 } 623 624 if (theta > MAX_SWIPE_ANGLE) { 625 // Above MAX_SWIPE_ANGLE, we don't want to ever start scrolling the workspace 626 return; 627 } else if (theta > START_DAMPING_TOUCH_SLOP_ANGLE) { 628 // Above START_DAMPING_TOUCH_SLOP_ANGLE and below MAX_SWIPE_ANGLE, we want to 629 // increase the touch slop to make it harder to begin scrolling the workspace. This 630 // results in vertically scrolling widgets to more easily. The higher the angle, the 631 // more we increase touch slop. 632 theta -= START_DAMPING_TOUCH_SLOP_ANGLE; 633 float extraRatio = (float) 634 Math.sqrt((theta / (MAX_SWIPE_ANGLE - START_DAMPING_TOUCH_SLOP_ANGLE))); 635 super.determineScrollingStart(ev, 1 + TOUCH_SLOP_DAMPING_FACTOR * extraRatio); 636 } else { 637 // Below START_DAMPING_TOUCH_SLOP_ANGLE, we don't do anything special 638 super.determineScrollingStart(ev); 639 } 640 } 641 } 642 643 @Override 644 protected boolean isScrollingIndicatorEnabled() { 645 return mState != State.SPRING_LOADED; 646 } 647 648 protected void onPageBeginMoving() { 649 super.onPageBeginMoving(); 650 651 if (isHardwareAccelerated()) { 652 updateChildrenLayersEnabled(); 653 } else { 654 if (mNextPage != INVALID_PAGE) { 655 // we're snapping to a particular screen 656 enableChildrenCache(mCurrentPage, mNextPage); 657 } else { 658 // this is when user is actively dragging a particular screen, they might 659 // swipe it either left or right (but we won't advance by more than one screen) 660 enableChildrenCache(mCurrentPage - 1, mCurrentPage + 1); 661 } 662 } 663 664 // Only show page outlines as we pan if we are on large screen 665 if (LauncherApplication.isScreenLarge()) { 666 showOutlines(); 667 } 668 } 669 670 protected void onPageEndMoving() { 671 super.onPageEndMoving(); 672 673 if (isHardwareAccelerated()) { 674 updateChildrenLayersEnabled(); 675 } else { 676 clearChildrenCache(); 677 } 678 679 // Hide the outlines, as long as we're not dragging 680 if (!mDragController.dragging()) { 681 // Only hide page outlines as we pan if we are on large screen 682 if (LauncherApplication.isScreenLarge()) { 683 hideOutlines(); 684 } 685 } 686 mOverScrollMaxBackgroundAlpha = 0.0f; 687 mOverScrollPageIndex = -1; 688 689 if (mDelayedResizeRunnable != null) { 690 mDelayedResizeRunnable.run(); 691 mDelayedResizeRunnable = null; 692 } 693 } 694 695 @Override 696 protected void notifyPageSwitchListener() { 697 super.notifyPageSwitchListener(); 698 Launcher.setScreen(mCurrentPage); 699 }; 700 701 // As a ratio of screen height, the total distance we want the parallax effect to span 702 // vertically 703 private float wallpaperTravelToScreenHeightRatio(int width, int height) { 704 return 1.1f; 705 } 706 707 // As a ratio of screen height, the total distance we want the parallax effect to span 708 // horizontally 709 private float wallpaperTravelToScreenWidthRatio(int width, int height) { 710 float aspectRatio = width / (float) height; 711 712 // At an aspect ratio of 16/10, the wallpaper parallax effect should span 1.5 * screen width 713 // At an aspect ratio of 10/16, the wallpaper parallax effect should span 1.2 * screen width 714 // We will use these two data points to extrapolate how much the wallpaper parallax effect 715 // to span (ie travel) at any aspect ratio: 716 717 final float ASPECT_RATIO_LANDSCAPE = 16/10f; 718 final float ASPECT_RATIO_PORTRAIT = 10/16f; 719 final float WALLPAPER_WIDTH_TO_SCREEN_RATIO_LANDSCAPE = 1.5f; 720 final float WALLPAPER_WIDTH_TO_SCREEN_RATIO_PORTRAIT = 1.2f; 721 722 // To find out the desired width at different aspect ratios, we use the following two 723 // formulas, where the coefficient on x is the aspect ratio (width/height): 724 // (16/10)x + y = 1.5 725 // (10/16)x + y = 1.2 726 // We solve for x and y and end up with a final formula: 727 final float x = 728 (WALLPAPER_WIDTH_TO_SCREEN_RATIO_LANDSCAPE - WALLPAPER_WIDTH_TO_SCREEN_RATIO_PORTRAIT) / 729 (ASPECT_RATIO_LANDSCAPE - ASPECT_RATIO_PORTRAIT); 730 final float y = WALLPAPER_WIDTH_TO_SCREEN_RATIO_PORTRAIT - x * ASPECT_RATIO_PORTRAIT; 731 return x * aspectRatio + y; 732 } 733 734 // The range of scroll values for Workspace 735 private int getScrollRange() { 736 return getChildOffset(getChildCount() - 1) - getChildOffset(0); 737 } 738 739 protected void setWallpaperDimension() { 740 Display display = mLauncher.getWindowManager().getDefaultDisplay(); 741 DisplayMetrics displayMetrics = new DisplayMetrics(); 742 display.getRealMetrics(displayMetrics); 743 final int maxDim = Math.max(displayMetrics.widthPixels, displayMetrics.heightPixels); 744 final int minDim = Math.min(displayMetrics.widthPixels, displayMetrics.heightPixels); 745 746 // We need to ensure that there is enough extra space in the wallpaper for the intended 747 // parallax effects 748 mWallpaperWidth = (int) (maxDim * wallpaperTravelToScreenWidthRatio(maxDim, minDim)); 749 mWallpaperHeight = (int)(maxDim * wallpaperTravelToScreenHeightRatio(maxDim, minDim)); 750 new Thread("setWallpaperDimension") { 751 public void run() { 752 mWallpaperManager.suggestDesiredDimensions(mWallpaperWidth, mWallpaperHeight); 753 } 754 }.start(); 755 } 756 757 public void setVerticalWallpaperOffset(float offset) { 758 mWallpaperOffset.setFinalY(offset); 759 } 760 public float getVerticalWallpaperOffset() { 761 return mWallpaperOffset.getCurrY(); 762 } 763 public void setHorizontalWallpaperOffset(float offset) { 764 mWallpaperOffset.setFinalX(offset); 765 } 766 public float getHorizontalWallpaperOffset() { 767 return mWallpaperOffset.getCurrX(); 768 } 769 770 private float wallpaperOffsetForCurrentScroll() { 771 Display display = mLauncher.getWindowManager().getDefaultDisplay(); 772 final boolean isStaticWallpaper = (mWallpaperManager.getWallpaperInfo() == null); 773 // The wallpaper travel width is how far, from left to right, the wallpaper will move 774 // at this orientation (for example, in portrait mode we don't move all the way to the 775 // edges of the wallpaper, or otherwise the parallax effect would be too strong) 776 int wallpaperTravelWidth = (int) (display.getWidth() * 777 wallpaperTravelToScreenWidthRatio(display.getWidth(), display.getHeight())); 778 if (!isStaticWallpaper) { 779 wallpaperTravelWidth = mWallpaperWidth; 780 } 781 782 // Set wallpaper offset steps (1 / (number of screens - 1)) 783 // We have 3 vertical offset states (centered, and then top/bottom aligned 784 // for all apps/customize) 785 mWallpaperManager.setWallpaperOffsetSteps(1.0f / (getChildCount() - 1), 1.0f / (3 - 1)); 786 787 int scrollRange = getScrollRange(); 788 float scrollProgressOffset = 0; 789 790 // Account for overscroll: you only see the absolute edge of the wallpaper if 791 // you overscroll as far as you can in landscape mode. Only do this for static wallpapers 792 // because live wallpapers (and probably 3rd party wallpaper providers) rely on the offset 793 // being even intervals from 0 to 1 (eg [0, 0.25, 0.5, 0.75, 1]) 794 if (isStaticWallpaper) { 795 int overscrollOffset = (int) (maxOverScroll() * display.getWidth()); 796 scrollProgressOffset += overscrollOffset / (float) getScrollRange(); 797 scrollRange += 2 * overscrollOffset; 798 } 799 800 float scrollProgress = 801 mScrollX / (float) scrollRange + scrollProgressOffset; 802 float offsetInDips = wallpaperTravelWidth * scrollProgress + 803 (mWallpaperWidth - wallpaperTravelWidth) / 2; // center it 804 float offset = offsetInDips / (float) mWallpaperWidth; 805 return offset; 806 } 807 private void syncWallpaperOffsetWithScroll() { 808 final boolean enableWallpaperEffects = isHardwareAccelerated(); 809 if (enableWallpaperEffects) { 810 mWallpaperOffset.setFinalX(wallpaperOffsetForCurrentScroll()); 811 } 812 } 813 814 public void updateWallpaperOffsetImmediately() { 815 mUpdateWallpaperOffsetImmediately = true; 816 } 817 818 private void updateWallpaperOffsets() { 819 boolean updateNow = false; 820 boolean keepUpdating = true; 821 if (mUpdateWallpaperOffsetImmediately) { 822 updateNow = true; 823 keepUpdating = false; 824 mWallpaperOffset.jumpToFinal(); 825 mUpdateWallpaperOffsetImmediately = false; 826 } else { 827 updateNow = keepUpdating = mWallpaperOffset.computeScrollOffset(); 828 } 829 if (updateNow) { 830 if (mWindowToken != null) { 831 mWallpaperManager.setWallpaperOffsets(mWindowToken, 832 mWallpaperOffset.getCurrX(), mWallpaperOffset.getCurrY()); 833 } 834 } 835 if (keepUpdating) { 836 fastInvalidate(); 837 } 838 } 839 840 class WallpaperOffsetInterpolator { 841 float mFinalHorizontalWallpaperOffset = 0.0f; 842 float mFinalVerticalWallpaperOffset = 0.5f; 843 float mHorizontalWallpaperOffset = 0.0f; 844 float mVerticalWallpaperOffset = 0.5f; 845 long mLastWallpaperOffsetUpdateTime; 846 boolean mIsMovingFast; 847 boolean mOverrideHorizontalCatchupConstant; 848 float mHorizontalCatchupConstant = 0.35f; 849 float mVerticalCatchupConstant = 0.35f; 850 851 public WallpaperOffsetInterpolator() { 852 } 853 854 public void setOverrideHorizontalCatchupConstant(boolean override) { 855 mOverrideHorizontalCatchupConstant = override; 856 } 857 858 public void setHorizontalCatchupConstant(float f) { 859 mHorizontalCatchupConstant = f; 860 } 861 862 public void setVerticalCatchupConstant(float f) { 863 mVerticalCatchupConstant = f; 864 } 865 866 public boolean computeScrollOffset() { 867 if (Float.compare(mHorizontalWallpaperOffset, mFinalHorizontalWallpaperOffset) == 0 && 868 Float.compare(mVerticalWallpaperOffset, mFinalVerticalWallpaperOffset) == 0) { 869 mIsMovingFast = false; 870 return false; 871 } 872 Display display = mLauncher.getWindowManager().getDefaultDisplay(); 873 boolean isLandscape = display.getWidth() > display.getHeight(); 874 875 long currentTime = System.currentTimeMillis(); 876 long timeSinceLastUpdate = currentTime - mLastWallpaperOffsetUpdateTime; 877 timeSinceLastUpdate = Math.min((long) (1000/30f), timeSinceLastUpdate); 878 timeSinceLastUpdate = Math.max(1L, timeSinceLastUpdate); 879 880 float xdiff = Math.abs(mFinalHorizontalWallpaperOffset - mHorizontalWallpaperOffset); 881 if (!mIsMovingFast && xdiff > 0.07) { 882 mIsMovingFast = true; 883 } 884 885 float fractionToCatchUpIn1MsHorizontal; 886 if (mOverrideHorizontalCatchupConstant) { 887 fractionToCatchUpIn1MsHorizontal = mHorizontalCatchupConstant; 888 } else if (mIsMovingFast) { 889 fractionToCatchUpIn1MsHorizontal = isLandscape ? 0.5f : 0.75f; 890 } else { 891 // slow 892 fractionToCatchUpIn1MsHorizontal = isLandscape ? 0.27f : 0.5f; 893 } 894 float fractionToCatchUpIn1MsVertical = mVerticalCatchupConstant; 895 896 fractionToCatchUpIn1MsHorizontal /= 33f; 897 fractionToCatchUpIn1MsVertical /= 33f; 898 899 final float UPDATE_THRESHOLD = 0.00001f; 900 float hOffsetDelta = mFinalHorizontalWallpaperOffset - mHorizontalWallpaperOffset; 901 float vOffsetDelta = mFinalVerticalWallpaperOffset - mVerticalWallpaperOffset; 902 boolean jumpToFinalValue = Math.abs(hOffsetDelta) < UPDATE_THRESHOLD && 903 Math.abs(vOffsetDelta) < UPDATE_THRESHOLD; 904 if (jumpToFinalValue) { 905 mHorizontalWallpaperOffset = mFinalHorizontalWallpaperOffset; 906 mVerticalWallpaperOffset = mFinalVerticalWallpaperOffset; 907 } else { 908 float percentToCatchUpVertical = 909 Math.min(1.0f, timeSinceLastUpdate * fractionToCatchUpIn1MsVertical); 910 float percentToCatchUpHorizontal = 911 Math.min(1.0f, timeSinceLastUpdate * fractionToCatchUpIn1MsHorizontal); 912 mHorizontalWallpaperOffset += percentToCatchUpHorizontal * hOffsetDelta; 913 mVerticalWallpaperOffset += percentToCatchUpVertical * vOffsetDelta; 914 } 915 916 mLastWallpaperOffsetUpdateTime = System.currentTimeMillis(); 917 return true; 918 } 919 920 public float getCurrX() { 921 return mHorizontalWallpaperOffset; 922 } 923 924 public float getFinalX() { 925 return mFinalHorizontalWallpaperOffset; 926 } 927 928 public float getCurrY() { 929 return mVerticalWallpaperOffset; 930 } 931 932 public float getFinalY() { 933 return mFinalVerticalWallpaperOffset; 934 } 935 936 public void setFinalX(float x) { 937 mFinalHorizontalWallpaperOffset = Math.max(0f, Math.min(x, 1.0f)); 938 } 939 940 public void setFinalY(float y) { 941 mFinalVerticalWallpaperOffset = Math.max(0f, Math.min(y, 1.0f)); 942 } 943 944 public void jumpToFinal() { 945 mHorizontalWallpaperOffset = mFinalHorizontalWallpaperOffset; 946 mVerticalWallpaperOffset = mFinalVerticalWallpaperOffset; 947 } 948 } 949 950 @Override 951 public void computeScroll() { 952 super.computeScroll(); 953 if (mSyncWallpaperOffsetWithScroll) { 954 syncWallpaperOffsetWithScroll(); 955 } 956 } 957 958 void showOutlines() { 959 if (!isSmall() && !mIsSwitchingState) { 960 if (mChildrenOutlineFadeOutAnimation != null) mChildrenOutlineFadeOutAnimation.cancel(); 961 if (mChildrenOutlineFadeInAnimation != null) mChildrenOutlineFadeInAnimation.cancel(); 962 mChildrenOutlineFadeInAnimation = ObjectAnimator.ofFloat(this, "childrenOutlineAlpha", 1.0f); 963 mChildrenOutlineFadeInAnimation.setDuration(CHILDREN_OUTLINE_FADE_IN_DURATION); 964 mChildrenOutlineFadeInAnimation.start(); 965 } 966 } 967 968 void hideOutlines() { 969 if (!isSmall() && !mIsSwitchingState) { 970 if (mChildrenOutlineFadeInAnimation != null) mChildrenOutlineFadeInAnimation.cancel(); 971 if (mChildrenOutlineFadeOutAnimation != null) mChildrenOutlineFadeOutAnimation.cancel(); 972 mChildrenOutlineFadeOutAnimation = ObjectAnimator.ofFloat(this, "childrenOutlineAlpha", 0.0f); 973 mChildrenOutlineFadeOutAnimation.setDuration(CHILDREN_OUTLINE_FADE_OUT_DURATION); 974 mChildrenOutlineFadeOutAnimation.setStartDelay(CHILDREN_OUTLINE_FADE_OUT_DELAY); 975 mChildrenOutlineFadeOutAnimation.start(); 976 } 977 } 978 979 public void showOutlinesTemporarily() { 980 if (!mIsPageMoving && !isTouchActive()) { 981 snapToPage(mCurrentPage); 982 } 983 } 984 985 public void setChildrenOutlineAlpha(float alpha) { 986 mChildrenOutlineAlpha = alpha; 987 for (int i = 0; i < getChildCount(); i++) { 988 CellLayout cl = (CellLayout) getChildAt(i); 989 cl.setBackgroundAlpha(alpha); 990 } 991 } 992 993 public float getChildrenOutlineAlpha() { 994 return mChildrenOutlineAlpha; 995 } 996 997 void disableBackground() { 998 mDrawBackground = false; 999 } 1000 void enableBackground() { 1001 mDrawBackground = true; 1002 } 1003 1004 private void animateBackgroundGradient(float finalAlpha, boolean animated) { 1005 if (mBackground == null) return; 1006 if (mBackgroundFadeInAnimation != null) { 1007 mBackgroundFadeInAnimation.cancel(); 1008 mBackgroundFadeInAnimation = null; 1009 } 1010 if (mBackgroundFadeOutAnimation != null) { 1011 mBackgroundFadeOutAnimation.cancel(); 1012 mBackgroundFadeOutAnimation = null; 1013 } 1014 float startAlpha = getBackgroundAlpha(); 1015 if (finalAlpha != startAlpha) { 1016 if (animated) { 1017 mBackgroundFadeOutAnimation = ValueAnimator.ofFloat(startAlpha, finalAlpha); 1018 mBackgroundFadeOutAnimation.addUpdateListener(new AnimatorUpdateListener() { 1019 public void onAnimationUpdate(ValueAnimator animation) { 1020 setBackgroundAlpha(((Float) animation.getAnimatedValue()).floatValue()); 1021 } 1022 }); 1023 mBackgroundFadeOutAnimation.setInterpolator(new DecelerateInterpolator(1.5f)); 1024 mBackgroundFadeOutAnimation.setDuration(BACKGROUND_FADE_OUT_DURATION); 1025 mBackgroundFadeOutAnimation.start(); 1026 } else { 1027 setBackgroundAlpha(finalAlpha); 1028 } 1029 } 1030 } 1031 1032 public void setBackgroundAlpha(float alpha) { 1033 if (alpha != mBackgroundAlpha) { 1034 mBackgroundAlpha = alpha; 1035 invalidate(); 1036 } 1037 } 1038 1039 public float getBackgroundAlpha() { 1040 return mBackgroundAlpha; 1041 } 1042 1043 /** 1044 * Due to 3D transformations, if two CellLayouts are theoretically touching each other, 1045 * on the xy plane, when one is rotated along the y-axis, the gap between them is perceived 1046 * as being larger. This method computes what offset the rotated view should be translated 1047 * in order to minimize this perceived gap. 1048 * @param degrees Angle of the view 1049 * @param width Width of the view 1050 * @param height Height of the view 1051 * @return Offset to be used in a View.setTranslationX() call 1052 */ 1053 private float getOffsetXForRotation(float degrees, int width, int height) { 1054 mMatrix.reset(); 1055 mCamera.save(); 1056 mCamera.rotateY(Math.abs(degrees)); 1057 mCamera.getMatrix(mMatrix); 1058 mCamera.restore(); 1059 1060 mMatrix.preTranslate(-width * 0.5f, -height * 0.5f); 1061 mMatrix.postTranslate(width * 0.5f, height * 0.5f); 1062 mTempFloat2[0] = width; 1063 mTempFloat2[1] = height; 1064 mMatrix.mapPoints(mTempFloat2); 1065 return (width - mTempFloat2[0]) * (degrees > 0.0f ? 1.0f : -1.0f); 1066 } 1067 1068 float backgroundAlphaInterpolator(float r) { 1069 float pivotA = 0.1f; 1070 float pivotB = 0.4f; 1071 if (r < pivotA) { 1072 return 0; 1073 } else if (r > pivotB) { 1074 return 1.0f; 1075 } else { 1076 return (r - pivotA)/(pivotB - pivotA); 1077 } 1078 } 1079 1080 float overScrollBackgroundAlphaInterpolator(float r) { 1081 float threshold = 0.08f; 1082 1083 if (r > mOverScrollMaxBackgroundAlpha) { 1084 mOverScrollMaxBackgroundAlpha = r; 1085 } else if (r < mOverScrollMaxBackgroundAlpha) { 1086 r = mOverScrollMaxBackgroundAlpha; 1087 } 1088 1089 return Math.min(r / threshold, 1.0f); 1090 } 1091 1092 @Override 1093 protected void screenScrolled(int screenCenter) { 1094 super.screenScrolled(screenCenter); 1095 1096 // If the screen is not xlarge, then don't rotate the CellLayouts 1097 // NOTE: If we don't update the side pages alpha, then we should not hide the side pages. 1098 // see unshrink(). 1099 if (!LauncherApplication.isScreenLarge()) return; 1100 1101 final int halfScreenSize = getMeasuredWidth() / 2; 1102 1103 for (int i = 0; i < getChildCount(); i++) { 1104 CellLayout cl = (CellLayout) getChildAt(i); 1105 if (cl != null) { 1106 int totalDistance = getScaledMeasuredWidth(cl) + mPageSpacing; 1107 int delta = screenCenter - (getChildOffset(i) - 1108 getRelativeChildOffset(i) + halfScreenSize); 1109 1110 float scrollProgress = delta / (totalDistance * 1.0f); 1111 scrollProgress = Math.min(scrollProgress, 1.0f); 1112 scrollProgress = Math.max(scrollProgress, -1.0f); 1113 1114 if (mState != State.SPRING_LOADED) { 1115 // If the current page (i) is being overscrolled, we use a different 1116 // set of rules for setting the background alpha multiplier. 1117 if ((mScrollX < 0 && i == 0) || (mScrollX > mMaxScrollX && 1118 i == getChildCount() -1 )) { 1119 cl.setBackgroundAlphaMultiplier( 1120 overScrollBackgroundAlphaInterpolator(Math.abs(scrollProgress))); 1121 mOverScrollPageIndex = i; 1122 } else if (mOverScrollPageIndex != i) { 1123 cl.setBackgroundAlphaMultiplier( 1124 backgroundAlphaInterpolator(Math.abs(scrollProgress))); 1125 } 1126 } 1127 1128 float rotation = WORKSPACE_ROTATION * scrollProgress; 1129 float translationX = getOffsetXForRotation(rotation, cl.getWidth(), cl.getHeight()); 1130 cl.setTranslationX(translationX); 1131 1132 cl.setRotationY(rotation); 1133 } 1134 } 1135 } 1136 1137 protected void onAttachedToWindow() { 1138 super.onAttachedToWindow(); 1139 mWindowToken = getWindowToken(); 1140 computeScroll(); 1141 mDragController.setWindowToken(mWindowToken); 1142 } 1143 1144 protected void onDetachedFromWindow() { 1145 mWindowToken = null; 1146 } 1147 1148 @Override 1149 protected void onLayout(boolean changed, int left, int top, int right, int bottom) { 1150 if (mFirstLayout && mCurrentPage >= 0 && mCurrentPage < getChildCount()) { 1151 mUpdateWallpaperOffsetImmediately = true; 1152 } 1153 super.onLayout(changed, left, top, right, bottom); 1154 1155 // if shrinkToBottom() is called on initialization, it has to be deferred 1156 // until after the first call to onLayout so that it has the correct width 1157 if (mSwitchStateAfterFirstLayout) { 1158 mSwitchStateAfterFirstLayout = false; 1159 // shrink can trigger a synchronous onLayout call, so we 1160 // post this to avoid a stack overflow / tangled onLayout calls 1161 post(new Runnable() { 1162 public void run() { 1163 shrink(mStateAfterFirstLayout, false); 1164 } 1165 }); 1166 } 1167 } 1168 1169 @Override 1170 protected void onDraw(Canvas canvas) { 1171 updateWallpaperOffsets(); 1172 1173 // Draw the background gradient if necessary 1174 if (mBackground != null && mBackgroundAlpha > 0.0f && mDrawBackground) { 1175 int alpha = (int) (mBackgroundAlpha * 255); 1176 mBackground.setAlpha(alpha); 1177 mBackground.setBounds(mScrollX, 0, mScrollX + getMeasuredWidth(), 1178 getMeasuredHeight()); 1179 mBackground.draw(canvas); 1180 } 1181 1182 super.onDraw(canvas); 1183 } 1184 1185 @Override 1186 protected void dispatchDraw(Canvas canvas) { 1187 super.dispatchDraw(canvas); 1188 1189 if (mInScrollArea && !LauncherApplication.isScreenLarge()) { 1190 final int width = getWidth(); 1191 final int height = getHeight(); 1192 final int pageHeight = getChildAt(0).getHeight(); 1193 1194 // This determines the height of the glowing edge: 90% of the page height 1195 final int padding = (int) ((height - pageHeight) * 0.5f + pageHeight * 0.1f); 1196 1197 final CellLayout leftPage = (CellLayout) getChildAt(mCurrentPage - 1); 1198 final CellLayout rightPage = (CellLayout) getChildAt(mCurrentPage + 1); 1199 1200 if (leftPage != null && leftPage.getIsDragOverlapping()) { 1201 final Drawable d = getResources().getDrawable(R.drawable.page_hover_left_holo); 1202 d.setBounds(mScrollX, padding, mScrollX + d.getIntrinsicWidth(), height - padding); 1203 d.draw(canvas); 1204 } else if (rightPage != null && rightPage.getIsDragOverlapping()) { 1205 final Drawable d = getResources().getDrawable(R.drawable.page_hover_right_holo); 1206 d.setBounds(mScrollX + width - d.getIntrinsicWidth(), padding, mScrollX + width, height - padding); 1207 d.draw(canvas); 1208 } 1209 } 1210 } 1211 1212 @Override 1213 protected boolean onRequestFocusInDescendants(int direction, Rect previouslyFocusedRect) { 1214 if (!mLauncher.isAllAppsVisible()) { 1215 final Folder openFolder = getOpenFolder(); 1216 if (openFolder != null) { 1217 return openFolder.requestFocus(direction, previouslyFocusedRect); 1218 } else { 1219 return super.onRequestFocusInDescendants(direction, previouslyFocusedRect); 1220 } 1221 } 1222 return false; 1223 } 1224 1225 @Override 1226 public int getDescendantFocusability() { 1227 if (isSmall()) { 1228 return ViewGroup.FOCUS_BLOCK_DESCENDANTS; 1229 } 1230 return super.getDescendantFocusability(); 1231 } 1232 1233 @Override 1234 public void addFocusables(ArrayList<View> views, int direction, int focusableMode) { 1235 if (!mLauncher.isAllAppsVisible()) { 1236 final Folder openFolder = getOpenFolder(); 1237 if (openFolder != null) { 1238 openFolder.addFocusables(views, direction); 1239 } else { 1240 super.addFocusables(views, direction, focusableMode); 1241 } 1242 } 1243 } 1244 1245 public boolean isSmall() { 1246 return mState == State.SMALL || mState == State.SPRING_LOADED; 1247 } 1248 1249 void enableChildrenCache(int fromPage, int toPage) { 1250 if (fromPage > toPage) { 1251 final int temp = fromPage; 1252 fromPage = toPage; 1253 toPage = temp; 1254 } 1255 1256 final int screenCount = getChildCount(); 1257 1258 fromPage = Math.max(fromPage, 0); 1259 toPage = Math.min(toPage, screenCount - 1); 1260 1261 for (int i = fromPage; i <= toPage; i++) { 1262 final CellLayout layout = (CellLayout) getChildAt(i); 1263 layout.setChildrenDrawnWithCacheEnabled(true); 1264 layout.setChildrenDrawingCacheEnabled(true); 1265 } 1266 } 1267 1268 void clearChildrenCache() { 1269 final int screenCount = getChildCount(); 1270 for (int i = 0; i < screenCount; i++) { 1271 final CellLayout layout = (CellLayout) getChildAt(i); 1272 layout.setChildrenDrawnWithCacheEnabled(false); 1273 // In software mode, we don't want the items to continue to be drawn into bitmaps 1274 if (!isHardwareAccelerated()) { 1275 layout.setChildrenDrawingCacheEnabled(false); 1276 } 1277 } 1278 } 1279 1280 private void updateChildrenLayersEnabled() { 1281 boolean small = 1282 isSmall() || mIsSwitchingState || mState == State.SPRING_LOADED; 1283 boolean dragging = mAnimatingViewIntoPlace || mIsDragOccuring; 1284 boolean enableChildrenLayers = small || dragging || isPageMoving(); 1285 1286 if (enableChildrenLayers != mChildrenLayersEnabled) { 1287 mChildrenLayersEnabled = enableChildrenLayers; 1288 for (int i = 0; i < getPageCount(); i++) { 1289 ((ViewGroup)getChildAt(i)).setChildrenLayersEnabled(enableChildrenLayers); 1290 } 1291 } 1292 } 1293 1294 @Override 1295 protected void onWallpaperTap(MotionEvent ev) { 1296 final int[] position = mTempCell; 1297 getLocationOnScreen(position); 1298 1299 int pointerIndex = ev.getActionIndex(); 1300 position[0] += (int) ev.getX(pointerIndex); 1301 position[1] += (int) ev.getY(pointerIndex); 1302 1303 mWallpaperManager.sendWallpaperCommand(getWindowToken(), 1304 ev.getAction() == MotionEvent.ACTION_UP 1305 ? WallpaperManager.COMMAND_TAP : WallpaperManager.COMMAND_SECONDARY_TAP, 1306 position[0], position[1], 0, null); 1307 } 1308 1309 private float getYScaleForScreen(int screen) { 1310 int x = Math.abs(screen - 2); 1311 1312 // TODO: This should be generalized for use with arbitrary rotation angles. 1313 switch(x) { 1314 case 0: return EXTRA_SCALE_FACTOR_0; 1315 case 1: return EXTRA_SCALE_FACTOR_1; 1316 case 2: return EXTRA_SCALE_FACTOR_2; 1317 } 1318 return 1.0f; 1319 } 1320 1321 public void shrink(State shrinkState) { 1322 shrink(shrinkState, true); 1323 } 1324 1325 // we use this to shrink the workspace for the all apps view and the customize view 1326 public void shrink(final State shrinkState, boolean animated) { 1327 if (mFirstLayout) { 1328 // (mFirstLayout == "first layout has not happened yet") 1329 // if we get a call to shrink() as part of our initialization (for example, if 1330 // Launcher is started in All Apps mode) then we need to wait for a layout call 1331 // to get our width so we can layout the mini-screen views correctly 1332 mSwitchStateAfterFirstLayout = true; 1333 mStateAfterFirstLayout = shrinkState; 1334 return; 1335 } 1336 1337 // Stop any scrolling, move to the current page right away 1338 setCurrentPage((mNextPage != INVALID_PAGE) ? mNextPage : mCurrentPage); 1339 1340 CellLayout currentPage = (CellLayout) getChildAt(mCurrentPage); 1341 if (currentPage == null) { 1342 Log.w(TAG, "currentPage is NULL! mCurrentPage " + mCurrentPage 1343 + " mNextPage " + mNextPage); 1344 return; 1345 } 1346 if (currentPage.getBackgroundAlphaMultiplier() < 1.0f) { 1347 currentPage.setBackgroundAlpha(0.0f); 1348 } 1349 currentPage.setBackgroundAlphaMultiplier(1.0f); 1350 1351 mState = shrinkState; 1352 updateChildrenLayersEnabled(); 1353 1354 // we intercept and reject all touch events when we're small, so be sure to reset the state 1355 mTouchState = TOUCH_STATE_REST; 1356 mActivePointerId = INVALID_POINTER; 1357 1358 final Resources res = getResources(); 1359 final int screenWidth = getWidth(); 1360 final int screenHeight = getHeight(); 1361 1362 // How much the workspace shrinks when we enter all apps or customization mode 1363 final float shrinkFactor = res.getInteger(R.integer.config_workspaceShrinkPercent) / 100.0f; 1364 1365 // Making the assumption that all pages have the same width as the 0th 1366 final int pageWidth = getChildAt(0).getMeasuredWidth(); 1367 final int pageHeight = getChildAt(0).getMeasuredHeight(); 1368 1369 final int scaledPageWidth = (int) (shrinkFactor * pageWidth); 1370 final int scaledPageHeight = (int) (shrinkFactor * pageHeight); 1371 final float extraScaledSpacing = res.getDimension(R.dimen.smallScreenExtraSpacing); 1372 1373 final int screenCount = getChildCount(); 1374 float totalWidth = screenCount * scaledPageWidth + (screenCount - 1) * extraScaledSpacing; 1375 1376 // We shrink and disappear to nothing 1377 boolean isPortrait = getMeasuredHeight() > getMeasuredWidth(); 1378 float y = screenHeight - scaledPageHeight - (isPortrait ? 1379 getResources().getDimension(R.dimen.allAppsSmallScreenVerticalMarginPortrait) : 1380 getResources().getDimension(R.dimen.allAppsSmallScreenVerticalMarginLandscape)); 1381 float finalAlpha = 0.0f; 1382 1383 int duration = res.getInteger(R.integer.config_appsCustomizeWorkspaceShrinkTime); 1384 1385 // We animate all the screens to the centered position in workspace 1386 // At the same time, the screens become greyed/dimmed 1387 1388 // newX is initialized to the left-most position of the centered screens 1389 float x = mScroller.getFinalX() + screenWidth / 2 - totalWidth / 2; 1390 1391 // We are going to scale about the center of the view, so we need to adjust the positions 1392 // of the views accordingly 1393 x -= (pageWidth - scaledPageWidth) / 2.0f; 1394 y -= (pageHeight - scaledPageHeight) / 2.0f; 1395 1396 if (mAnimator != null) { 1397 mAnimator.cancel(); 1398 } 1399 1400 mAnimator = new AnimatorSet(); 1401 // Workaround the AnimatorSet cancel bug... 1402 mUnshrinkAnimationEnabled = false; 1403 mShrinkAnimationEnabled = true; 1404 1405 initAnimationArrays(); 1406 1407 for (int i = 0; i < screenCount; i++) { 1408 final CellLayout cl = (CellLayout) getChildAt(i); 1409 1410 float rotation = (-i + 2) * WORKSPACE_ROTATION; 1411 float rotationScaleX = (float) (1.0f / Math.cos(Math.PI * rotation / 180.0f)); 1412 float rotationScaleY = getYScaleForScreen(i); 1413 1414 mOldAlphas[i] = cl.getAlpha(); 1415 mNewAlphas[i] = finalAlpha; 1416 if (animated && (mOldAlphas[i] != 0f || mNewAlphas[i] != 0f)) { 1417 // if the CellLayout will be visible during the animation, force building its 1418 // hardware layer immediately so we don't see a blip later in the animation 1419 cl.buildChildrenLayer(); 1420 } 1421 if (animated) { 1422 mOldTranslationXs[i] = cl.getX(); 1423 mOldTranslationYs[i] = cl.getY(); 1424 mOldScaleXs[i] = cl.getScaleX(); 1425 mOldScaleYs[i] = cl.getScaleY(); 1426 mOldBackgroundAlphas[i] = cl.getBackgroundAlpha(); 1427 mOldRotationYs[i] = cl.getRotationY(); 1428 mNewTranslationXs[i] = x; 1429 mNewTranslationYs[i] = y; 1430 mNewScaleXs[i] = shrinkFactor * rotationScaleX; 1431 mNewScaleYs[i] = shrinkFactor * rotationScaleY; 1432 mNewBackgroundAlphas[i] = finalAlpha; 1433 mNewRotationYs[i] = rotation; 1434 } else { 1435 cl.setX((int)x); 1436 cl.setY((int)y); 1437 cl.setScaleX(shrinkFactor * rotationScaleX); 1438 cl.setScaleY(shrinkFactor * rotationScaleY); 1439 cl.setBackgroundAlpha(finalAlpha); 1440 cl.setFastAlpha(finalAlpha); 1441 cl.setRotationY(rotation); 1442 mShrinkAnimationListener.onAnimationEnd(null); 1443 } 1444 // increment newX for the next screen 1445 x += scaledPageWidth + extraScaledSpacing; 1446 } 1447 1448 float wallpaperOffset = 0.5f; 1449 Display display = mLauncher.getWindowManager().getDefaultDisplay(); 1450 int wallpaperTravelHeight = (int) (display.getHeight() * 1451 wallpaperTravelToScreenHeightRatio(display.getWidth(), display.getHeight())); 1452 float offsetFromCenter = (wallpaperTravelHeight / (float) mWallpaperHeight) / 2f; 1453 boolean isLandscape = display.getWidth() > display.getHeight(); 1454 1455 // on phones, don't scroll the wallpaper horizontally or vertically when switching 1456 // to/from all apps 1457 final boolean enableWallpaperEffects = 1458 isHardwareAccelerated() && LauncherApplication.isScreenLarge(); 1459 if (enableWallpaperEffects) { 1460 switch (shrinkState) { 1461 // animating in 1462 case SPRING_LOADED: 1463 wallpaperOffset = 0.5f; 1464 mWallpaperOffset.setVerticalCatchupConstant(isLandscape ? 0.34f : 0.32f); 1465 break; 1466 case SMALL: 1467 // allapps 1468 wallpaperOffset = 0.5f - offsetFromCenter; 1469 mWallpaperOffset.setVerticalCatchupConstant(isLandscape ? 0.34f : 0.32f); 1470 break; 1471 } 1472 } 1473 1474 setLayoutScale(1.0f); 1475 if (animated) { 1476 if (enableWallpaperEffects) { 1477 mWallpaperOffset.setHorizontalCatchupConstant(0.46f); 1478 mWallpaperOffset.setOverrideHorizontalCatchupConstant(true); 1479 } 1480 1481 mSyncWallpaperOffsetWithScroll = false; 1482 1483 ValueAnimator animWithInterpolator = 1484 ValueAnimator.ofFloat(0f, 1f).setDuration(duration); 1485 animWithInterpolator.setInterpolator(mZoomOutInterpolator); 1486 1487 final float oldHorizontalWallpaperOffset = getHorizontalWallpaperOffset(); 1488 final float oldVerticalWallpaperOffset = getVerticalWallpaperOffset(); 1489 final float newHorizontalWallpaperOffset = 0.5f; 1490 final float newVerticalWallpaperOffset = wallpaperOffset; 1491 animWithInterpolator.addUpdateListener(new LauncherAnimatorUpdateListener() { 1492 public void onAnimationUpdate(float a, float b) { 1493 if (!mShrinkAnimationEnabled) return; 1494 mTransitionProgress = b; 1495 if (b == 0f) { 1496 // an optimization, and required for correct behavior. 1497 return; 1498 } 1499 invalidate(); 1500 if (enableWallpaperEffects) { 1501 setHorizontalWallpaperOffset( 1502 a * oldHorizontalWallpaperOffset + b * newHorizontalWallpaperOffset); 1503 setVerticalWallpaperOffset( 1504 a * oldVerticalWallpaperOffset + b * newVerticalWallpaperOffset); 1505 } 1506 for (int i = 0; i < screenCount; i++) { 1507 final CellLayout cl = (CellLayout) getChildAt(i); 1508 cl.fastInvalidate(); 1509 cl.setFastX(a * mOldTranslationXs[i] + b * mNewTranslationXs[i]); 1510 cl.setFastY(a * mOldTranslationYs[i] + b * mNewTranslationYs[i]); 1511 cl.setFastScaleX(a * mOldScaleXs[i] + b * mNewScaleXs[i]); 1512 cl.setFastScaleY(a * mOldScaleYs[i] + b * mNewScaleYs[i]); 1513 cl.setFastBackgroundAlpha( 1514 a * mOldBackgroundAlphas[i] + b * mNewBackgroundAlphas[i]); 1515 cl.setFastAlpha(a * mOldAlphas[i] + b * mNewAlphas[i]); 1516 cl.setFastRotationY(a * mOldRotationYs[i] + b * mNewRotationYs[i]); 1517 } 1518 } 1519 }); 1520 mAnimator.playTogether(animWithInterpolator); 1521 mAnimator.addListener(mShrinkAnimationListener); 1522 mAnimator.start(); 1523 } else if (enableWallpaperEffects) { 1524 setVerticalWallpaperOffset(wallpaperOffset); 1525 setHorizontalWallpaperOffset(0.5f); 1526 updateWallpaperOffsetImmediately(); 1527 } 1528 setChildrenDrawnWithCacheEnabled(true); 1529 } 1530 1531 @Override 1532 protected void updateAdjacentPagesAlpha() { 1533 if (!isSmall()) { 1534 super.updateAdjacentPagesAlpha(); 1535 } 1536 } 1537 1538 /* 1539 * This interpolator emulates the rate at which the perceived scale of an object changes 1540 * as its distance from a camera increases. When this interpolator is applied to a scale 1541 * animation on a view, it evokes the sense that the object is shrinking due to moving away 1542 * from the camera. 1543 */ 1544 static class ZInterpolator implements TimeInterpolator { 1545 private float focalLength; 1546 1547 public ZInterpolator(float foc) { 1548 focalLength = foc; 1549 } 1550 1551 public float getInterpolation(float input) { 1552 return (1.0f - focalLength / (focalLength + input)) / 1553 (1.0f - focalLength / (focalLength + 1.0f)); 1554 } 1555 } 1556 1557 /* 1558 * The exact reverse of ZInterpolator. 1559 */ 1560 static class InverseZInterpolator implements TimeInterpolator { 1561 private ZInterpolator zInterpolator; 1562 public InverseZInterpolator(float foc) { 1563 zInterpolator = new ZInterpolator(foc); 1564 } 1565 public float getInterpolation(float input) { 1566 return 1 - zInterpolator.getInterpolation(1 - input); 1567 } 1568 } 1569 1570 /* 1571 * ZInterpolator compounded with an ease-out. 1572 */ 1573 static class ZoomOutInterpolator implements TimeInterpolator { 1574 private final ZInterpolator zInterpolator = new ZInterpolator(0.2f); 1575 private final DecelerateInterpolator decelerate = new DecelerateInterpolator(1.8f); 1576 1577 public float getInterpolation(float input) { 1578 return decelerate.getInterpolation(zInterpolator.getInterpolation(input)); 1579 } 1580 } 1581 1582 /* 1583 * InvereZInterpolator compounded with an ease-out. 1584 */ 1585 static class ZoomInInterpolator implements TimeInterpolator { 1586 private final InverseZInterpolator inverseZInterpolator = new InverseZInterpolator(0.35f); 1587 private final DecelerateInterpolator decelerate = new DecelerateInterpolator(3.0f); 1588 1589 public float getInterpolation(float input) { 1590 return decelerate.getInterpolation(inverseZInterpolator.getInterpolation(input)); 1591 } 1592 } 1593 1594 private final ZoomOutInterpolator mZoomOutInterpolator = new ZoomOutInterpolator(); 1595 private final ZoomInInterpolator mZoomInInterpolator = new ZoomInInterpolator(); 1596 1597 /* 1598 * 1599 * We call these methods (onDragStartedWithItemSpans/onDragStartedWithSize) whenever we 1600 * start a drag in Launcher, regardless of whether the drag has ever entered the Workspace 1601 * 1602 * These methods mark the appropriate pages as accepting drops (which alters their visual 1603 * appearance). 1604 * 1605 */ 1606 public void onDragStartedWithItem(View v) { 1607 final Canvas canvas = new Canvas(); 1608 1609 // We need to add extra padding to the bitmap to make room for the glow effect 1610 final int bitmapPadding = HolographicOutlineHelper.MAX_OUTER_BLUR_RADIUS; 1611 1612 // The outline is used to visualize where the item will land if dropped 1613 mDragOutline = createDragOutline(v, canvas, bitmapPadding); 1614 } 1615 1616 public void onDragStartedWithItemSpans(int spanX, int spanY, Bitmap b) { 1617 final Canvas canvas = new Canvas(); 1618 1619 // We need to add extra padding to the bitmap to make room for the glow effect 1620 final int bitmapPadding = HolographicOutlineHelper.MAX_OUTER_BLUR_RADIUS; 1621 1622 CellLayout cl = (CellLayout) getChildAt(0); 1623 1624 int[] size = cl.cellSpansToSize(spanX, spanY); 1625 1626 // The outline is used to visualize where the item will land if dropped 1627 mDragOutline = createDragOutline(b, canvas, bitmapPadding, size[0], size[1]); 1628 } 1629 1630 // we call this method whenever a drag and drop in Launcher finishes, even if Workspace was 1631 // never dragged over 1632 public void onDragStopped(boolean success) { 1633 // In the success case, DragController has already called onDragExit() 1634 if (!success) { 1635 doDragExit(null); 1636 } 1637 } 1638 1639 // We call this when we trigger an unshrink by clicking on the CellLayout cl 1640 public void unshrink(CellLayout clThatWasClicked) { 1641 unshrink(clThatWasClicked, false); 1642 } 1643 1644 public void unshrink(CellLayout clThatWasClicked, boolean springLoaded) { 1645 int newCurrentPage = indexOfChild(clThatWasClicked); 1646 if (isSmall()) { 1647 if (springLoaded) { 1648 setLayoutScale(mSpringLoadedShrinkFactor); 1649 } 1650 scrollToNewPageWithoutMovingPages(newCurrentPage); 1651 unshrink(true, springLoaded); 1652 } 1653 } 1654 1655 1656 public void enterSpringLoadedDragMode(CellLayout clThatWasClicked) { 1657 unshrink(clThatWasClicked, true); 1658 } 1659 1660 public void exitSpringLoadedDragMode(State shrinkState) { 1661 shrink(shrinkState); 1662 } 1663 1664 public void exitWidgetResizeMode() { 1665 DragLayer dragLayer = mLauncher.getDragLayer(); 1666 dragLayer.clearAllResizeFrames(); 1667 } 1668 1669 void unshrink(boolean animated) { 1670 unshrink(animated, false); 1671 } 1672 1673 private void initAnimationArrays() { 1674 final int childCount = getChildCount(); 1675 if (mOldTranslationXs != null) return; 1676 mOldTranslationXs = new float[childCount]; 1677 mOldTranslationYs = new float[childCount]; 1678 mOldScaleXs = new float[childCount]; 1679 mOldScaleYs = new float[childCount]; 1680 mOldBackgroundAlphas = new float[childCount]; 1681 mOldBackgroundAlphaMultipliers = new float[childCount]; 1682 mOldAlphas = new float[childCount]; 1683 mOldRotationYs = new float[childCount]; 1684 mNewTranslationXs = new float[childCount]; 1685 mNewTranslationYs = new float[childCount]; 1686 mNewScaleXs = new float[childCount]; 1687 mNewScaleYs = new float[childCount]; 1688 mNewBackgroundAlphas = new float[childCount]; 1689 mNewBackgroundAlphaMultipliers = new float[childCount]; 1690 mNewAlphas = new float[childCount]; 1691 mNewRotationYs = new float[childCount]; 1692 } 1693 1694 void unshrink(boolean animated, final boolean springLoaded) { 1695 if (mFirstLayout) { 1696 // (mFirstLayout == "first layout has not happened yet") 1697 // cancel any pending shrinks that were set earlier 1698 mSwitchStateAfterFirstLayout = false; 1699 mStateAfterFirstLayout = State.NORMAL; 1700 return; 1701 } 1702 1703 if (isSmall()) { 1704 float finalScaleFactor = 1.0f; 1705 float finalBackgroundAlpha = 0.0f; 1706 if (springLoaded) { 1707 finalScaleFactor = mSpringLoadedShrinkFactor; 1708 finalBackgroundAlpha = 1.0f; 1709 mState = State.SPRING_LOADED; 1710 } else { 1711 mState = State.NORMAL; 1712 } 1713 if (mAnimator != null) { 1714 mAnimator.cancel(); 1715 } 1716 1717 mAnimator = new AnimatorSet(); 1718 1719 // Workaround the AnimatorSet cancel bug... 1720 mShrinkAnimationEnabled = false; 1721 mUnshrinkAnimationEnabled = true; 1722 1723 final int screenCount = getChildCount(); 1724 initAnimationArrays(); 1725 1726 final int duration = getResources().getInteger(R.integer.config_workspaceUnshrinkTime); 1727 for (int i = 0; i < screenCount; i++) { 1728 final CellLayout cl = (CellLayout)getChildAt(i); 1729 float finalAlphaValue = 0f; 1730 float rotation = 0f; 1731 1732 // Set the final alpha depending on whether we are fading side pages. On phone ui, 1733 // we don't do any of the rotation, or the fading alpha in portrait. See the 1734 // ctor and screenScrolled(). 1735 if (mFadeInAdjacentScreens && !springLoaded) { 1736 finalAlphaValue = (i == mCurrentPage) ? 1f : 0f; 1737 } else { 1738 finalAlphaValue = 1f; 1739 } 1740 1741 if (LauncherApplication.isScreenLarge()) { 1742 if (i < mCurrentPage) { 1743 rotation = WORKSPACE_ROTATION; 1744 } else if (i > mCurrentPage) { 1745 rotation = -WORKSPACE_ROTATION; 1746 } 1747 } 1748 float finalAlphaMultiplierValue = 1f; 1749 1750 float translation = 0f; 1751 1752 // If the screen is not xlarge, then don't rotate the CellLayouts 1753 // NOTE: If we don't update the side pages alpha, then we should not hide the side 1754 // pages. see unshrink(). 1755 if (LauncherApplication.isScreenLarge()) { 1756 translation = getOffsetXForRotation(rotation, cl.getWidth(), cl.getHeight()); 1757 } 1758 1759 mOldAlphas[i] = cl.getAlpha(); 1760 mNewAlphas[i] = finalAlphaValue; 1761 if (animated) { 1762 mOldTranslationXs[i] = cl.getTranslationX(); 1763 mOldTranslationYs[i] = cl.getTranslationY(); 1764 mOldScaleXs[i] = cl.getScaleX(); 1765 mOldScaleYs[i] = cl.getScaleY(); 1766 mOldBackgroundAlphas[i] = cl.getBackgroundAlpha(); 1767 mOldBackgroundAlphaMultipliers[i] = cl.getBackgroundAlphaMultiplier(); 1768 mOldRotationYs[i] = cl.getRotationY(); 1769 1770 mNewTranslationXs[i] = translation; 1771 mNewTranslationYs[i] = 0f; 1772 mNewScaleXs[i] = finalScaleFactor; 1773 mNewScaleYs[i] = finalScaleFactor; 1774 mNewBackgroundAlphas[i] = finalBackgroundAlpha; 1775 mNewBackgroundAlphaMultipliers[i] = finalAlphaMultiplierValue; 1776 mNewRotationYs[i] = rotation; 1777 } else { 1778 cl.setTranslationX(translation); 1779 cl.setTranslationY(0.0f); 1780 cl.setScaleX(finalScaleFactor); 1781 cl.setScaleY(finalScaleFactor); 1782 cl.setBackgroundAlpha(0.0f); 1783 cl.setBackgroundAlphaMultiplier(finalAlphaMultiplierValue); 1784 cl.setAlpha(finalAlphaValue); 1785 cl.setRotationY(rotation); 1786 mUnshrinkAnimationListener.onAnimationEnd(null); 1787 } 1788 } 1789 1790 // Unshrink the hotset the same amount we are unshrinking the screens 1791 if (mLauncher.getHotseat() != null) { 1792 View hotseat = mLauncher.getHotseat().getLayout(); 1793 hotseat.setScaleX(finalScaleFactor); 1794 hotseat.setScaleY(finalScaleFactor); 1795 } 1796 1797 Display display = mLauncher.getWindowManager().getDefaultDisplay(); 1798 boolean isLandscape = display.getWidth() > display.getHeight(); 1799 // on phones, don't scroll the wallpaper horizontally or vertically when switching 1800 // to/from all apps 1801 final boolean enableWallpaperEffects = 1802 isHardwareAccelerated() && LauncherApplication.isScreenLarge(); 1803 if (enableWallpaperEffects) { 1804 switch (mState) { 1805 // animating out 1806 case SPRING_LOADED: 1807 if (animated) { 1808 mWallpaperOffset.setHorizontalCatchupConstant(isLandscape ? 0.49f : 0.46f); 1809 mWallpaperOffset.setVerticalCatchupConstant(isLandscape ? 0.49f : 0.46f); 1810 mWallpaperOffset.setOverrideHorizontalCatchupConstant(true); 1811 } 1812 break; 1813 case SMALL: 1814 // all apps 1815 if (animated) { 1816 mWallpaperOffset.setHorizontalCatchupConstant(isLandscape ? 0.65f : 0.65f); 1817 mWallpaperOffset.setVerticalCatchupConstant(isLandscape ? 0.65f : 0.65f); 1818 mWallpaperOffset.setOverrideHorizontalCatchupConstant(true); 1819 } 1820 break; 1821 } 1822 } 1823 if (animated) { 1824 ValueAnimator animWithInterpolator = 1825 ValueAnimator.ofFloat(0f, 1f).setDuration(duration); 1826 animWithInterpolator.setInterpolator(mZoomInInterpolator); 1827 1828 final float oldHorizontalWallpaperOffset = enableWallpaperEffects ? 1829 getHorizontalWallpaperOffset() : 0; 1830 final float oldVerticalWallpaperOffset = enableWallpaperEffects ? 1831 getVerticalWallpaperOffset() : 0; 1832 final float newHorizontalWallpaperOffset = enableWallpaperEffects ? 1833 wallpaperOffsetForCurrentScroll() : 0; 1834 final float newVerticalWallpaperOffset = enableWallpaperEffects ? 0.5f : 0; 1835 animWithInterpolator.addUpdateListener(new LauncherAnimatorUpdateListener() { 1836 public void onAnimationUpdate(float a, float b) { 1837 if (!mUnshrinkAnimationEnabled) return; 1838 mTransitionProgress = b; 1839 if (b == 0f) { 1840 // an optimization, but not required 1841 return; 1842 } 1843 invalidate(); 1844 if (enableWallpaperEffects) { 1845 setHorizontalWallpaperOffset(a * oldHorizontalWallpaperOffset 1846 + b * newHorizontalWallpaperOffset); 1847 setVerticalWallpaperOffset(a * oldVerticalWallpaperOffset 1848 + b * newVerticalWallpaperOffset); 1849 } 1850 for (int i = 0; i < screenCount; i++) { 1851 final CellLayout cl = (CellLayout) getChildAt(i); 1852 cl.fastInvalidate(); 1853 cl.setFastTranslationX( 1854 a * mOldTranslationXs[i] + b * mNewTranslationXs[i]); 1855 cl.setFastTranslationY( 1856 a * mOldTranslationYs[i] + b * mNewTranslationYs[i]); 1857 cl.setFastScaleX(a * mOldScaleXs[i] + b * mNewScaleXs[i]); 1858 cl.setFastScaleY(a * mOldScaleYs[i] + b * mNewScaleYs[i]); 1859 cl.setFastBackgroundAlpha( 1860 a * mOldBackgroundAlphas[i] + b * mNewBackgroundAlphas[i]); 1861 cl.setBackgroundAlphaMultiplier(a * mOldBackgroundAlphaMultipliers[i] + 1862 b * mNewBackgroundAlphaMultipliers[i]); 1863 cl.setFastAlpha(a * mOldAlphas[i] + b * mNewAlphas[i]); 1864 } 1865 } 1866 }); 1867 1868 ValueAnimator rotationAnim = 1869 ValueAnimator.ofFloat(0f, 1f).setDuration(duration); 1870 rotationAnim.setInterpolator(new DecelerateInterpolator(2.0f)); 1871 rotationAnim.addUpdateListener(new LauncherAnimatorUpdateListener() { 1872 public void onAnimationUpdate(float a, float b) { 1873 if (!mUnshrinkAnimationEnabled) return; 1874 // don't invalidate workspace because we did it above 1875 if (b == 0f) { 1876 // an optimization, but not required 1877 return; 1878 } 1879 for (int i = 0; i < screenCount; i++) { 1880 final CellLayout cl = (CellLayout) getChildAt(i); 1881 cl.setFastRotationY(a * mOldRotationYs[i] + b * mNewRotationYs[i]); 1882 } 1883 } 1884 }); 1885 1886 mAnimator.playTogether(animWithInterpolator, rotationAnim); 1887 // If we call this when we're not animated, onAnimationEnd is never called on 1888 // the listener; make sure we only use the listener when we're actually animating 1889 mAnimator.addListener(mUnshrinkAnimationListener); 1890 mAnimator.start(); 1891 } else { 1892 if (enableWallpaperEffects) { 1893 setHorizontalWallpaperOffset(wallpaperOffsetForCurrentScroll()); 1894 setVerticalWallpaperOffset(0.5f); 1895 updateWallpaperOffsetImmediately(); 1896 } 1897 } 1898 } 1899 1900 if (springLoaded) { 1901 // Right now we're covered by Apps Customize 1902 // Show the background gradient immediately, so the gradient will 1903 // be showing once AppsCustomize disappears 1904 animateBackgroundGradient(getResources().getInteger( 1905 R.integer.config_appsCustomizeSpringLoadedBgAlpha) / 100f, false); 1906 } else { 1907 // Fade the background gradient away 1908 animateBackgroundGradient(0f, true); 1909 } 1910 } 1911 1912 /** 1913 * Draw the View v into the given Canvas. 1914 * 1915 * @param v the view to draw 1916 * @param destCanvas the canvas to draw on 1917 * @param padding the horizontal and vertical padding to use when drawing 1918 */ 1919 private void drawDragView(View v, Canvas destCanvas, int padding, boolean pruneToDrawable) { 1920 final Rect clipRect = mTempRect; 1921 v.getDrawingRect(clipRect); 1922 1923 destCanvas.save(); 1924 if (v instanceof TextView && pruneToDrawable) { 1925 Drawable d = ((TextView) v).getCompoundDrawables()[1]; 1926 clipRect.set(0, 0, d.getIntrinsicWidth() + padding, d.getIntrinsicHeight() + padding); 1927 destCanvas.translate(padding / 2, padding / 2); 1928 d.draw(destCanvas); 1929 } else { 1930 if (v instanceof FolderIcon) { 1931 clipRect.bottom = getResources().getDimensionPixelSize(R.dimen.folder_preview_size); 1932 } else if (v instanceof BubbleTextView) { 1933 final BubbleTextView tv = (BubbleTextView) v; 1934 clipRect.bottom = tv.getExtendedPaddingTop() - (int) BubbleTextView.PADDING_V + 1935 tv.getLayout().getLineTop(0); 1936 } else if (v instanceof TextView) { 1937 final TextView tv = (TextView) v; 1938 clipRect.bottom = tv.getExtendedPaddingTop() - tv.getCompoundDrawablePadding() + 1939 tv.getLayout().getLineTop(0); 1940 } 1941 destCanvas.translate(-v.getScrollX() + padding / 2, -v.getScrollY() + padding / 2); 1942 destCanvas.clipRect(clipRect, Op.REPLACE); 1943 v.draw(destCanvas); 1944 } 1945 destCanvas.restore(); 1946 } 1947 1948 /** 1949 * Returns a new bitmap to show when the given View is being dragged around. 1950 * Responsibility for the bitmap is transferred to the caller. 1951 */ 1952 public Bitmap createDragBitmap(View v, Canvas canvas, int padding) { 1953 final int outlineColor = getResources().getColor(android.R.color.holo_blue_light); 1954 Bitmap b; 1955 1956 if (v instanceof TextView) { 1957 Drawable d = ((TextView) v).getCompoundDrawables()[1]; 1958 b = Bitmap.createBitmap(d.getIntrinsicWidth() + padding, 1959 d.getIntrinsicHeight() + padding, Bitmap.Config.ARGB_8888); 1960 } else { 1961 b = Bitmap.createBitmap( 1962 v.getWidth() + padding, v.getHeight() + padding, Bitmap.Config.ARGB_8888); 1963 } 1964 1965 canvas.setBitmap(b); 1966 drawDragView(v, canvas, padding, true); 1967 mOutlineHelper.applyOuterBlur(b, canvas, outlineColor); 1968 canvas.drawColor(mDragViewMultiplyColor, PorterDuff.Mode.MULTIPLY); 1969 canvas.setBitmap(null); 1970 1971 return b; 1972 } 1973 1974 /** 1975 * Returns a new bitmap to be used as the object outline, e.g. to visualize the drop location. 1976 * Responsibility for the bitmap is transferred to the caller. 1977 */ 1978 private Bitmap createDragOutline(View v, Canvas canvas, int padding) { 1979 final int outlineColor = getResources().getColor(android.R.color.holo_blue_light); 1980 final Bitmap b = Bitmap.createBitmap( 1981 v.getWidth() + padding, v.getHeight() + padding, Bitmap.Config.ARGB_8888); 1982 1983 canvas.setBitmap(b); 1984 drawDragView(v, canvas, padding, false); 1985 mOutlineHelper.applyMediumExpensiveOutlineWithBlur(b, canvas, outlineColor, outlineColor); 1986 canvas.setBitmap(null); 1987 return b; 1988 } 1989 1990 /** 1991 * Returns a new bitmap to be used as the object outline, e.g. to visualize the drop location. 1992 * Responsibility for the bitmap is transferred to the caller. 1993 */ 1994 private Bitmap createDragOutline(Bitmap orig, Canvas canvas, int padding, int w, int h) { 1995 final int outlineColor = getResources().getColor(android.R.color.holo_blue_light); 1996 final Bitmap b = Bitmap.createBitmap(w, h, Bitmap.Config.ARGB_8888); 1997 canvas.setBitmap(b); 1998 1999 Rect src = new Rect(0, 0, orig.getWidth(), orig.getHeight()); 2000 float scaleFactor = Math.min((w - padding) / (float) orig.getWidth(), 2001 (h - padding) / (float) orig.getHeight()); 2002 int scaledWidth = (int) (scaleFactor * orig.getWidth()); 2003 int scaledHeight = (int) (scaleFactor * orig.getHeight()); 2004 Rect dst = new Rect(0, 0, scaledWidth, scaledHeight); 2005 2006 // center the image 2007 dst.offset((w - scaledWidth) / 2, (h - scaledHeight) / 2); 2008 2009 Paint p = new Paint(); 2010 p.setFilterBitmap(true); 2011 canvas.drawBitmap(orig, src, dst, p); 2012 mOutlineHelper.applyMediumExpensiveOutlineWithBlur(b, canvas, outlineColor, outlineColor); 2013 canvas.setBitmap(null); 2014 2015 return b; 2016 } 2017 2018 /** 2019 * Creates a drag outline to represent a drop (that we don't have the actual information for 2020 * yet). May be changed in the future to alter the drop outline slightly depending on the 2021 * clip description mime data. 2022 */ 2023 private Bitmap createExternalDragOutline(Canvas canvas, int padding) { 2024 Resources r = getResources(); 2025 final int outlineColor = r.getColor(android.R.color.holo_blue_light); 2026 final int iconWidth = r.getDimensionPixelSize(R.dimen.workspace_cell_width); 2027 final int iconHeight = r.getDimensionPixelSize(R.dimen.workspace_cell_height); 2028 final int rectRadius = r.getDimensionPixelSize(R.dimen.external_drop_icon_rect_radius); 2029 final int inset = (int) (Math.min(iconWidth, iconHeight) * 0.2f); 2030 final Bitmap b = Bitmap.createBitmap( 2031 iconWidth + padding, iconHeight + padding, Bitmap.Config.ARGB_8888); 2032 2033 canvas.setBitmap(b); 2034 canvas.drawRoundRect(new RectF(inset, inset, iconWidth - inset, iconHeight - inset), 2035 rectRadius, rectRadius, mExternalDragOutlinePaint); 2036 mOutlineHelper.applyMediumExpensiveOutlineWithBlur(b, canvas, outlineColor, outlineColor); 2037 canvas.setBitmap(null); 2038 return b; 2039 } 2040 2041 void startDrag(CellLayout.CellInfo cellInfo) { 2042 View child = cellInfo.cell; 2043 2044 // Make sure the drag was started by a long press as opposed to a long click. 2045 if (!child.isInTouchMode()) { 2046 return; 2047 } 2048 2049 mDragInfo = cellInfo; 2050 child.setVisibility(GONE); 2051 2052 child.clearFocus(); 2053 child.setPressed(false); 2054 2055 final Canvas canvas = new Canvas(); 2056 2057 // We need to add extra padding to the bitmap to make room for the glow effect 2058 final int bitmapPadding = HolographicOutlineHelper.MAX_OUTER_BLUR_RADIUS; 2059 2060 // The outline is used to visualize where the item will land if dropped 2061 mDragOutline = createDragOutline(child, canvas, bitmapPadding); 2062 beginDragShared(child, this); 2063 } 2064 2065 public void beginDragShared(View child, DragSource source) { 2066 // We need to add extra padding to the bitmap to make room for the glow effect 2067 final int bitmapPadding = HolographicOutlineHelper.MAX_OUTER_BLUR_RADIUS; 2068 2069 // The drag bitmap follows the touch point around on the screen 2070 final Bitmap b = createDragBitmap(child, new Canvas(), bitmapPadding); 2071 2072 final int bmpWidth = b.getWidth(); 2073 2074 mLauncher.getDragLayer().getLocationInDragLayer(child, mTempXY); 2075 final int dragLayerX = (int) mTempXY[0] + (child.getWidth() - bmpWidth) / 2; 2076 int dragLayerY = mTempXY[1] - bitmapPadding / 2; 2077 2078 Rect dragRect = null; 2079 if (child instanceof BubbleTextView) { 2080 int iconSize = getResources().getDimensionPixelSize(R.dimen.app_icon_size); 2081 int top = child.getPaddingTop(); 2082 int left = (bmpWidth - iconSize) / 2; 2083 int right = left + iconSize; 2084 int bottom = top + iconSize; 2085 dragLayerY += top; 2086 dragRect = new Rect(left, top, right, bottom); 2087 } else if (child instanceof FolderIcon) { 2088 int previewSize = getResources().getDimensionPixelSize(R.dimen.folder_preview_size); 2089 dragRect = new Rect(0, 0, child.getWidth(), previewSize); 2090 } 2091 2092 mDragController.startDrag(b, dragLayerX, dragLayerY, source, child.getTag(), 2093 DragController.DRAG_ACTION_MOVE, dragRect); 2094 b.recycle(); 2095 } 2096 2097 void addApplicationShortcut(ShortcutInfo info, CellLayout target, long container, int screen, 2098 int cellX, int cellY, boolean insertAtFirst, int intersectX, int intersectY) { 2099 View view = mLauncher.createShortcut(R.layout.application, target, (ShortcutInfo) info); 2100 2101 final int[] cellXY = new int[2]; 2102 target.findCellForSpanThatIntersects(cellXY, 1, 1, intersectX, intersectY); 2103 addInScreen(view, container, screen, cellXY[0], cellXY[1], 1, 1, insertAtFirst); 2104 LauncherModel.addOrMoveItemInDatabase(mLauncher, info, container, screen, cellXY[0], 2105 cellXY[1]); 2106 } 2107 2108 public boolean transitionStateShouldAllowDrop() { 2109 return (!isSwitchingState() || mTransitionProgress > 0.5f); 2110 } 2111 2112 /** 2113 * {@inheritDoc} 2114 */ 2115 public boolean acceptDrop(DragObject d) { 2116 // If it's an external drop (e.g. from All Apps), check if it should be accepted 2117 if (d.dragSource != this) { 2118 // Don't accept the drop if we're not over a screen at time of drop 2119 if (mDragTargetLayout == null) { 2120 return false; 2121 } 2122 if (!transitionStateShouldAllowDrop()) return false; 2123 2124 mDragViewVisualCenter = getDragViewVisualCenter(d.x, d.y, d.xOffset, d.yOffset, 2125 d.dragView, mDragViewVisualCenter); 2126 2127 int spanX = 1; 2128 int spanY = 1; 2129 View ignoreView = null; 2130 if (mDragInfo != null) { 2131 final CellLayout.CellInfo dragCellInfo = mDragInfo; 2132 spanX = dragCellInfo.spanX; 2133 spanY = dragCellInfo.spanY; 2134 ignoreView = dragCellInfo.cell; 2135 } else { 2136 final ItemInfo dragInfo = (ItemInfo) d.dragInfo; 2137 spanX = dragInfo.spanX; 2138 spanY = dragInfo.spanY; 2139 } 2140 2141 mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], 2142 (int) mDragViewVisualCenter[1], spanX, spanY, mDragTargetLayout, mTargetCell); 2143 if (willCreateUserFolder((ItemInfo) d.dragInfo, mDragTargetLayout, mTargetCell, true)) { 2144 return true; 2145 } 2146 if (willAddToExistingUserFolder((ItemInfo) d.dragInfo, mDragTargetLayout, 2147 mTargetCell)) { 2148 return true; 2149 } 2150 2151 2152 // Don't accept the drop if there's no room for the item 2153 if (!mDragTargetLayout.findCellForSpanIgnoring(null, spanX, spanY, ignoreView)) { 2154 mLauncher.showOutOfSpaceMessage(); 2155 return false; 2156 } 2157 } 2158 return true; 2159 } 2160 2161 boolean willCreateUserFolder(ItemInfo info, CellLayout target, int[] targetCell, 2162 boolean considerTimeout) { 2163 View dropOverView = target.getChildAt(targetCell[0], targetCell[1]); 2164 2165 boolean hasntMoved = false; 2166 if (mDragInfo != null) { 2167 CellLayout cellParent = getParentCellLayoutForView(mDragInfo.cell); 2168 hasntMoved = (mDragInfo.cellX == targetCell[0] && 2169 mDragInfo.cellY == targetCell[1]) && (cellParent == target); 2170 } 2171 2172 if (dropOverView == null || hasntMoved || (considerTimeout && !mCreateUserFolderOnDrop)) { 2173 return false; 2174 } 2175 2176 boolean aboveShortcut = (dropOverView.getTag() instanceof ShortcutInfo); 2177 boolean willBecomeShortcut = 2178 (info.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPLICATION || 2179 info.itemType == LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT); 2180 2181 return (aboveShortcut && willBecomeShortcut); 2182 } 2183 2184 boolean willAddToExistingUserFolder(Object dragInfo, CellLayout target, int[] targetCell) { 2185 View dropOverView = target.getChildAt(targetCell[0], targetCell[1]); 2186 if (dropOverView instanceof FolderIcon) { 2187 FolderIcon fi = (FolderIcon) dropOverView; 2188 if (fi.acceptDrop(dragInfo)) { 2189 return true; 2190 } 2191 } 2192 return false; 2193 } 2194 2195 boolean createUserFolderIfNecessary(View newView, long container, CellLayout target, 2196 int[] targetCell, boolean external, DragView dragView, Runnable postAnimationRunnable) { 2197 View v = target.getChildAt(targetCell[0], targetCell[1]); 2198 boolean hasntMoved = false; 2199 if (mDragInfo != null) { 2200 CellLayout cellParent = getParentCellLayoutForView(mDragInfo.cell); 2201 hasntMoved = (mDragInfo.cellX == targetCell[0] && 2202 mDragInfo.cellY == targetCell[1]) && (cellParent == target); 2203 } 2204 2205 if (v == null || hasntMoved || !mCreateUserFolderOnDrop) return false; 2206 mCreateUserFolderOnDrop = false; 2207 final int screen = (targetCell == null) ? mDragInfo.screen : indexOfChild(target); 2208 2209 boolean aboveShortcut = (v.getTag() instanceof ShortcutInfo); 2210 boolean willBecomeShortcut = (newView.getTag() instanceof ShortcutInfo); 2211 2212 if (aboveShortcut && willBecomeShortcut) { 2213 ShortcutInfo sourceInfo = (ShortcutInfo) newView.getTag(); 2214 ShortcutInfo destInfo = (ShortcutInfo) v.getTag(); 2215 // if the drag started here, we need to remove it from the workspace 2216 if (!external) { 2217 getParentCellLayoutForView(mDragInfo.cell).removeView(mDragInfo.cell); 2218 } 2219 2220 Rect folderLocation = new Rect(); 2221 float scale = mLauncher.getDragLayer().getDescendantRectRelativeToSelf(v, folderLocation); 2222 target.removeView(v); 2223 2224 FolderIcon fi = 2225 mLauncher.addFolder(target, container, screen, targetCell[0], targetCell[1]); 2226 destInfo.cellX = -1; 2227 destInfo.cellY = -1; 2228 sourceInfo.cellX = -1; 2229 sourceInfo.cellY = -1; 2230 2231 fi.performCreateAnimation(destInfo, v, sourceInfo, dragView, folderLocation, scale, 2232 postAnimationRunnable); 2233 return true; 2234 } 2235 return false; 2236 } 2237 2238 boolean addToExistingFolderIfNecessary(View newView, CellLayout target, int[] targetCell, 2239 DragObject d, boolean external) { 2240 View dropOverView = target.getChildAt(targetCell[0], targetCell[1]); 2241 if (dropOverView instanceof FolderIcon) { 2242 FolderIcon fi = (FolderIcon) dropOverView; 2243 if (fi.acceptDrop(d.dragInfo)) { 2244 fi.onDrop(d); 2245 2246 // if the drag started here, we need to remove it from the workspace 2247 if (!external) { 2248 getParentCellLayoutForView(mDragInfo.cell).removeView(mDragInfo.cell); 2249 } 2250 return true; 2251 } 2252 } 2253 return false; 2254 } 2255 2256 public void onDrop(DragObject d) { 2257 mDragViewVisualCenter = getDragViewVisualCenter(d.x, d.y, d.xOffset, d.yOffset, d.dragView, 2258 mDragViewVisualCenter); 2259 2260 // We want the point to be mapped to the dragTarget. 2261 if (mDragTargetLayout != null) { 2262 if (mLauncher.isHotseatLayout(mDragTargetLayout)) { 2263 mapPointFromSelfToSibling(mLauncher.getHotseat(), mDragViewVisualCenter); 2264 } else { 2265 mapPointFromSelfToChild(mDragTargetLayout, mDragViewVisualCenter, null); 2266 } 2267 } 2268 2269 CellLayout dropTargetLayout = mDragTargetLayout; 2270 2271 int snapScreen = -1; 2272 if (d.dragSource != this) { 2273 final int[] touchXY = new int[] { (int) mDragViewVisualCenter[0], 2274 (int) mDragViewVisualCenter[1] }; 2275 onDropExternal(touchXY, d.dragInfo, dropTargetLayout, false, d); 2276 } else if (mDragInfo != null) { 2277 final View cell = mDragInfo.cell; 2278 2279 if (dropTargetLayout != null) { 2280 // Move internally 2281 boolean hasMovedLayouts = (getParentCellLayoutForView(cell) != dropTargetLayout); 2282 boolean hasMovedIntoHotseat = mLauncher.isHotseatLayout(dropTargetLayout); 2283 long container = hasMovedIntoHotseat ? 2284 LauncherSettings.Favorites.CONTAINER_HOTSEAT : 2285 LauncherSettings.Favorites.CONTAINER_DESKTOP; 2286 int screen = (mTargetCell[0] < 0) ? 2287 mDragInfo.screen : indexOfChild(dropTargetLayout); 2288 int spanX = mDragInfo != null ? mDragInfo.spanX : 1; 2289 int spanY = mDragInfo != null ? mDragInfo.spanY : 1; 2290 // First we find the cell nearest to point at which the item is 2291 // dropped, without any consideration to whether there is an item there. 2292 mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], (int) 2293 mDragViewVisualCenter[1], spanX, spanY, dropTargetLayout, mTargetCell); 2294 // If the item being dropped is a shortcut and the nearest drop 2295 // cell also contains a shortcut, then create a folder with the two shortcuts. 2296 if (!mInScrollArea && createUserFolderIfNecessary(cell, container, 2297 dropTargetLayout, mTargetCell, false, d.dragView, null)) { 2298 return; 2299 } 2300 2301 if (addToExistingFolderIfNecessary(cell, dropTargetLayout, mTargetCell, d, false)) { 2302 return; 2303 } 2304 2305 // Aside from the special case where we're dropping a shortcut onto a shortcut, 2306 // we need to find the nearest cell location that is vacant 2307 mTargetCell = findNearestVacantArea((int) mDragViewVisualCenter[0], 2308 (int) mDragViewVisualCenter[1], mDragInfo.spanX, mDragInfo.spanY, cell, 2309 dropTargetLayout, mTargetCell); 2310 2311 if (mCurrentPage != screen && !hasMovedIntoHotseat) { 2312 snapScreen = screen; 2313 snapToPage(screen); 2314 } 2315 2316 if (mTargetCell[0] >= 0 && mTargetCell[1] >= 0) { 2317 if (hasMovedLayouts) { 2318 // Reparent the view 2319 getParentCellLayoutForView(cell).removeView(cell); 2320 addInScreen(cell, container, screen, mTargetCell[0], mTargetCell[1], 2321 mDragInfo.spanX, mDragInfo.spanY); 2322 } 2323 2324 // update the item's position after drop 2325 final ItemInfo info = (ItemInfo) cell.getTag(); 2326 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) cell.getLayoutParams(); 2327 dropTargetLayout.onMove(cell, mTargetCell[0], mTargetCell[1]); 2328 lp.cellX = mTargetCell[0]; 2329 lp.cellY = mTargetCell[1]; 2330 cell.setId(LauncherModel.getCellLayoutChildId(container, mDragInfo.screen, 2331 mTargetCell[0], mTargetCell[1], mDragInfo.spanX, mDragInfo.spanY)); 2332 2333 if (container != LauncherSettings.Favorites.CONTAINER_HOTSEAT && 2334 cell instanceof LauncherAppWidgetHostView) { 2335 final CellLayout cellLayout = dropTargetLayout; 2336 // We post this call so that the widget has a chance to be placed 2337 // in its final location 2338 2339 final LauncherAppWidgetHostView hostView = (LauncherAppWidgetHostView) cell; 2340 AppWidgetProviderInfo pinfo = hostView.getAppWidgetInfo(); 2341 if (pinfo.resizeMode != AppWidgetProviderInfo.RESIZE_NONE) { 2342 final Runnable resizeRunnable = new Runnable() { 2343 public void run() { 2344 DragLayer dragLayer = mLauncher.getDragLayer(); 2345 dragLayer.addResizeFrame(info, hostView, cellLayout); 2346 } 2347 }; 2348 post(new Runnable() { 2349 public void run() { 2350 if (!isPageMoving()) { 2351 resizeRunnable.run(); 2352 } else { 2353 mDelayedResizeRunnable = resizeRunnable; 2354 } 2355 } 2356 }); 2357 } 2358 } 2359 2360 LauncherModel.moveItemInDatabase(mLauncher, info, container, screen, lp.cellX, 2361 lp.cellY); 2362 } 2363 } 2364 2365 final CellLayout parent = (CellLayout) cell.getParent().getParent(); 2366 2367 // Prepare it to be animated into its new position 2368 // This must be called after the view has been re-parented 2369 final Runnable disableHardwareLayersRunnable = new Runnable() { 2370 @Override 2371 public void run() { 2372 mAnimatingViewIntoPlace = false; 2373 updateChildrenLayersEnabled(); 2374 } 2375 }; 2376 mAnimatingViewIntoPlace = true; 2377 if (d.dragView.hasDrawn()) { 2378 int duration = snapScreen < 0 ? -1 : ADJACENT_SCREEN_DROP_DURATION; 2379 setFinalScrollForPageChange(snapScreen); 2380 mLauncher.getDragLayer().animateViewIntoPosition(d.dragView, cell, duration, 2381 disableHardwareLayersRunnable); 2382 resetFinalScrollForPageChange(snapScreen); 2383 } else { 2384 cell.setVisibility(VISIBLE); 2385 } 2386 parent.onDropChild(cell); 2387 } 2388 } 2389 2390 public void setFinalScrollForPageChange(int screen) { 2391 if (screen >= 0) { 2392 mSavedScrollX = getScrollX(); 2393 CellLayout cl = (CellLayout) getChildAt(screen); 2394 mSavedTranslationX = cl.getTranslationX(); 2395 mSavedRotationY = cl.getRotationY(); 2396 final int newX = getChildOffset(screen) - getRelativeChildOffset(screen); 2397 setScrollX(newX); 2398 cl.setTranslationX(0f); 2399 cl.setRotationY(0f); 2400 } 2401 } 2402 2403 public void resetFinalScrollForPageChange(int screen) { 2404 if (screen >= 0) { 2405 CellLayout cl = (CellLayout) getChildAt(screen); 2406 setScrollX(mSavedScrollX); 2407 cl.setTranslationX(mSavedTranslationX); 2408 cl.setRotationY(mSavedRotationY); 2409 } 2410 } 2411 2412 public void getViewLocationRelativeToSelf(View v, int[] location) { 2413 getLocationInWindow(location); 2414 int x = location[0]; 2415 int y = location[1]; 2416 2417 v.getLocationInWindow(location); 2418 int vX = location[0]; 2419 int vY = location[1]; 2420 2421 location[0] = vX - x; 2422 location[1] = vY - y; 2423 } 2424 2425 public void onDragEnter(DragObject d) { 2426 if (mDragTargetLayout != null) { 2427 mDragTargetLayout.setIsDragOverlapping(false); 2428 mDragTargetLayout.onDragExit(); 2429 } 2430 mDragTargetLayout = getCurrentDropLayout(); 2431 mDragTargetLayout.setIsDragOverlapping(true); 2432 mDragTargetLayout.onDragEnter(); 2433 2434 // Because we don't have space in the Phone UI (the CellLayouts run to the edge) we 2435 // don't need to show the outlines 2436 if (LauncherApplication.isScreenLarge()) { 2437 showOutlines(); 2438 } 2439 } 2440 2441 private void doDragExit(DragObject d) { 2442 // Clean up folders 2443 cleanupFolderCreation(d); 2444 2445 // Reset the scroll area and previous drag target 2446 onResetScrollArea(); 2447 2448 if (mDragTargetLayout != null) { 2449 mDragTargetLayout.setIsDragOverlapping(false); 2450 mDragTargetLayout.onDragExit(); 2451 } 2452 mLastDragOverView = null; 2453 2454 if (!mIsPageMoving) { 2455 hideOutlines(); 2456 } 2457 } 2458 2459 public void onDragExit(DragObject d) { 2460 doDragExit(d); 2461 } 2462 2463 public DropTarget getDropTargetDelegate(DragObject d) { 2464 return null; 2465 } 2466 2467 /** 2468 * Tests to see if the drop will be accepted by Launcher, and if so, includes additional data 2469 * in the returned structure related to the widgets that match the drop (or a null list if it is 2470 * a shortcut drop). If the drop is not accepted then a null structure is returned. 2471 */ 2472 private Pair<Integer, List<WidgetMimeTypeHandlerData>> validateDrag(DragEvent event) { 2473 final LauncherModel model = mLauncher.getModel(); 2474 final ClipDescription desc = event.getClipDescription(); 2475 final int mimeTypeCount = desc.getMimeTypeCount(); 2476 for (int i = 0; i < mimeTypeCount; ++i) { 2477 final String mimeType = desc.getMimeType(i); 2478 if (mimeType.equals(InstallShortcutReceiver.SHORTCUT_MIMETYPE)) { 2479 return new Pair<Integer, List<WidgetMimeTypeHandlerData>>(i, null); 2480 } else { 2481 final List<WidgetMimeTypeHandlerData> widgets = 2482 model.resolveWidgetsForMimeType(mContext, mimeType); 2483 if (widgets.size() > 0) { 2484 return new Pair<Integer, List<WidgetMimeTypeHandlerData>>(i, widgets); 2485 } 2486 } 2487 } 2488 return null; 2489 } 2490 2491 /** 2492 * Global drag and drop handler 2493 */ 2494 @Override 2495 public boolean onDragEvent(DragEvent event) { 2496 final ClipDescription desc = event.getClipDescription(); 2497 final CellLayout layout = (CellLayout) getChildAt(mCurrentPage); 2498 final int[] pos = new int[2]; 2499 layout.getLocationOnScreen(pos); 2500 // We need to offset the drag coordinates to layout coordinate space 2501 final int x = (int) event.getX() - pos[0]; 2502 final int y = (int) event.getY() - pos[1]; 2503 2504 switch (event.getAction()) { 2505 case DragEvent.ACTION_DRAG_STARTED: { 2506 // Validate this drag 2507 Pair<Integer, List<WidgetMimeTypeHandlerData>> test = validateDrag(event); 2508 if (test != null) { 2509 boolean isShortcut = (test.second == null); 2510 if (isShortcut) { 2511 // Check if we have enough space on this screen to add a new shortcut 2512 if (!layout.findCellForSpan(pos, 1, 1)) { 2513 mLauncher.showOutOfSpaceMessage(); 2514 return false; 2515 } 2516 } 2517 } else { 2518 // Show error message if we couldn't accept any of the items 2519 Toast.makeText(mContext, mContext.getString(R.string.external_drop_widget_error), 2520 Toast.LENGTH_SHORT).show(); 2521 return false; 2522 } 2523 2524 // Create the drag outline 2525 // We need to add extra padding to the bitmap to make room for the glow effect 2526 final Canvas canvas = new Canvas(); 2527 final int bitmapPadding = HolographicOutlineHelper.MAX_OUTER_BLUR_RADIUS; 2528 mDragOutline = createExternalDragOutline(canvas, bitmapPadding); 2529 2530 // Show the current page outlines to indicate that we can accept this drop 2531 showOutlines(); 2532 layout.setIsDragOccuring(true); 2533 layout.onDragEnter(); 2534 layout.visualizeDropLocation(null, mDragOutline, x, y, 1, 1); 2535 2536 return true; 2537 } 2538 case DragEvent.ACTION_DRAG_LOCATION: 2539 // Visualize the drop location 2540 layout.visualizeDropLocation(null, mDragOutline, x, y, 1, 1); 2541 return true; 2542 case DragEvent.ACTION_DROP: { 2543 // Try and add any shortcuts 2544 final LauncherModel model = mLauncher.getModel(); 2545 final ClipData data = event.getClipData(); 2546 2547 // We assume that the mime types are ordered in descending importance of 2548 // representation. So we enumerate the list of mime types and alert the 2549 // user if any widgets can handle the drop. Only the most preferred 2550 // representation will be handled. 2551 pos[0] = x; 2552 pos[1] = y; 2553 Pair<Integer, List<WidgetMimeTypeHandlerData>> test = validateDrag(event); 2554 if (test != null) { 2555 final int index = test.first; 2556 final List<WidgetMimeTypeHandlerData> widgets = test.second; 2557 final boolean isShortcut = (widgets == null); 2558 final String mimeType = desc.getMimeType(index); 2559 if (isShortcut) { 2560 final Intent intent = data.getItemAt(index).getIntent(); 2561 Object info = model.infoFromShortcutIntent(mContext, intent, data.getIcon()); 2562 onDropExternal(new int[] { x, y }, info, layout, false); 2563 } else { 2564 if (widgets.size() == 1) { 2565 // If there is only one item, then go ahead and add and configure 2566 // that widget 2567 final AppWidgetProviderInfo widgetInfo = widgets.get(0).widgetInfo; 2568 final PendingAddWidgetInfo createInfo = 2569 new PendingAddWidgetInfo(widgetInfo, mimeType, data); 2570 mLauncher.addAppWidgetFromDrop(createInfo, 2571 LauncherSettings.Favorites.CONTAINER_DESKTOP, mCurrentPage, null, pos); 2572 } else { 2573 // Show the widget picker dialog if there is more than one widget 2574 // that can handle this data type 2575 final InstallWidgetReceiver.WidgetListAdapter adapter = 2576 new InstallWidgetReceiver.WidgetListAdapter(mLauncher, mimeType, 2577 data, widgets, layout, mCurrentPage, pos); 2578 final AlertDialog.Builder builder = 2579 new AlertDialog.Builder(mContext); 2580 builder.setAdapter(adapter, adapter); 2581 builder.setCancelable(true); 2582 builder.setTitle(mContext.getString( 2583 R.string.external_drop_widget_pick_title)); 2584 builder.setIcon(R.drawable.ic_no_applications); 2585 builder.show(); 2586 } 2587 } 2588 } 2589 return true; 2590 } 2591 case DragEvent.ACTION_DRAG_ENDED: 2592 // Hide the page outlines after the drop 2593 layout.setIsDragOccuring(false); 2594 layout.onDragExit(); 2595 hideOutlines(); 2596 return true; 2597 } 2598 return super.onDragEvent(event); 2599 } 2600 2601 /* 2602 * 2603 * Convert the 2D coordinate xy from the parent View's coordinate space to this CellLayout's 2604 * coordinate space. The argument xy is modified with the return result. 2605 * 2606 */ 2607 void mapPointFromSelfToChild(View v, float[] xy) { 2608 mapPointFromSelfToChild(v, xy, null); 2609 } 2610 2611 /* 2612 * 2613 * Convert the 2D coordinate xy from the parent View's coordinate space to this CellLayout's 2614 * coordinate space. The argument xy is modified with the return result. 2615 * 2616 * if cachedInverseMatrix is not null, this method will just use that matrix instead of 2617 * computing it itself; we use this to avoid redundant matrix inversions in 2618 * findMatchingPageForDragOver 2619 * 2620 */ 2621 void mapPointFromSelfToChild(View v, float[] xy, Matrix cachedInverseMatrix) { 2622 if (cachedInverseMatrix == null) { 2623 v.getMatrix().invert(mTempInverseMatrix); 2624 cachedInverseMatrix = mTempInverseMatrix; 2625 } 2626 xy[0] = xy[0] + mScrollX - v.getLeft(); 2627 xy[1] = xy[1] + mScrollY - v.getTop(); 2628 cachedInverseMatrix.mapPoints(xy); 2629 } 2630 2631 /* 2632 * Maps a point from the Workspace's coordinate system to another sibling view's. (Workspace 2633 * covers the full screen) 2634 */ 2635 void mapPointFromSelfToSibling(View v, float[] xy) { 2636 xy[0] = xy[0] - v.getLeft(); 2637 xy[1] = xy[1] - v.getTop(); 2638 } 2639 2640 /* 2641 * 2642 * Convert the 2D coordinate xy from this CellLayout's coordinate space to 2643 * the parent View's coordinate space. The argument xy is modified with the return result. 2644 * 2645 */ 2646 void mapPointFromChildToSelf(View v, float[] xy) { 2647 v.getMatrix().mapPoints(xy); 2648 xy[0] -= (mScrollX - v.getLeft()); 2649 xy[1] -= (mScrollY - v.getTop()); 2650 } 2651 2652 static private float squaredDistance(float[] point1, float[] point2) { 2653 float distanceX = point1[0] - point2[0]; 2654 float distanceY = point2[1] - point2[1]; 2655 return distanceX * distanceX + distanceY * distanceY; 2656 } 2657 2658 /* 2659 * 2660 * Returns true if the passed CellLayout cl overlaps with dragView 2661 * 2662 */ 2663 boolean overlaps(CellLayout cl, DragView dragView, 2664 int dragViewX, int dragViewY, Matrix cachedInverseMatrix) { 2665 // Transform the coordinates of the item being dragged to the CellLayout's coordinates 2666 final float[] draggedItemTopLeft = mTempDragCoordinates; 2667 draggedItemTopLeft[0] = dragViewX; 2668 draggedItemTopLeft[1] = dragViewY; 2669 final float[] draggedItemBottomRight = mTempDragBottomRightCoordinates; 2670 draggedItemBottomRight[0] = draggedItemTopLeft[0] + dragView.getDragRegionWidth(); 2671 draggedItemBottomRight[1] = draggedItemTopLeft[1] + dragView.getDragRegionHeight(); 2672 2673 // Transform the dragged item's top left coordinates 2674 // to the CellLayout's local coordinates 2675 mapPointFromSelfToChild(cl, draggedItemTopLeft, cachedInverseMatrix); 2676 float overlapRegionLeft = Math.max(0f, draggedItemTopLeft[0]); 2677 float overlapRegionTop = Math.max(0f, draggedItemTopLeft[1]); 2678 2679 if (overlapRegionLeft <= cl.getWidth() && overlapRegionTop >= 0) { 2680 // Transform the dragged item's bottom right coordinates 2681 // to the CellLayout's local coordinates 2682 mapPointFromSelfToChild(cl, draggedItemBottomRight, cachedInverseMatrix); 2683 float overlapRegionRight = Math.min(cl.getWidth(), draggedItemBottomRight[0]); 2684 float overlapRegionBottom = Math.min(cl.getHeight(), draggedItemBottomRight[1]); 2685 2686 if (overlapRegionRight >= 0 && overlapRegionBottom <= cl.getHeight()) { 2687 float overlap = (overlapRegionRight - overlapRegionLeft) * 2688 (overlapRegionBottom - overlapRegionTop); 2689 if (overlap > 0) { 2690 return true; 2691 } 2692 } 2693 } 2694 return false; 2695 } 2696 2697 /* 2698 * 2699 * This method returns the CellLayout that is currently being dragged to. In order to drag 2700 * to a CellLayout, either the touch point must be directly over the CellLayout, or as a second 2701 * strategy, we see if the dragView is overlapping any CellLayout and choose the closest one 2702 * 2703 * Return null if no CellLayout is currently being dragged over 2704 * 2705 */ 2706 private CellLayout findMatchingPageForDragOver( 2707 DragView dragView, float originX, float originY, boolean exact) { 2708 // We loop through all the screens (ie CellLayouts) and see which ones overlap 2709 // with the item being dragged and then choose the one that's closest to the touch point 2710 final int screenCount = getChildCount(); 2711 CellLayout bestMatchingScreen = null; 2712 float smallestDistSoFar = Float.MAX_VALUE; 2713 2714 for (int i = 0; i < screenCount; i++) { 2715 CellLayout cl = (CellLayout) getChildAt(i); 2716 2717 final float[] touchXy = {originX, originY}; 2718 // Transform the touch coordinates to the CellLayout's local coordinates 2719 // If the touch point is within the bounds of the cell layout, we can return immediately 2720 cl.getMatrix().invert(mTempInverseMatrix); 2721 mapPointFromSelfToChild(cl, touchXy, mTempInverseMatrix); 2722 2723 if (touchXy[0] >= 0 && touchXy[0] <= cl.getWidth() && 2724 touchXy[1] >= 0 && touchXy[1] <= cl.getHeight()) { 2725 return cl; 2726 } 2727 2728 if (!exact && overlaps(cl, dragView, (int) originX, (int) originY, mTempInverseMatrix)) { 2729 // Get the center of the cell layout in screen coordinates 2730 final float[] cellLayoutCenter = mTempCellLayoutCenterCoordinates; 2731 cellLayoutCenter[0] = cl.getWidth()/2; 2732 cellLayoutCenter[1] = cl.getHeight()/2; 2733 mapPointFromChildToSelf(cl, cellLayoutCenter); 2734 2735 touchXy[0] = originX; 2736 touchXy[1] = originY; 2737 2738 // Calculate the distance between the center of the CellLayout 2739 // and the touch point 2740 float dist = squaredDistance(touchXy, cellLayoutCenter); 2741 2742 if (dist < smallestDistSoFar) { 2743 smallestDistSoFar = dist; 2744 bestMatchingScreen = cl; 2745 } 2746 } 2747 } 2748 return bestMatchingScreen; 2749 } 2750 2751 // This is used to compute the visual center of the dragView. This point is then 2752 // used to visualize drop locations and determine where to drop an item. The idea is that 2753 // the visual center represents the user's interpretation of where the item is, and hence 2754 // is the appropriate point to use when determining drop location. 2755 private float[] getDragViewVisualCenter(int x, int y, int xOffset, int yOffset, 2756 DragView dragView, float[] recycle) { 2757 float res[]; 2758 if (recycle == null) { 2759 res = new float[2]; 2760 } else { 2761 res = recycle; 2762 } 2763 2764 // First off, the drag view has been shifted in a way that is not represented in the 2765 // x and y values or the x/yOffsets. Here we account for that shift. 2766 x += getResources().getDimensionPixelSize(R.dimen.dragViewOffsetX); 2767 y += getResources().getDimensionPixelSize(R.dimen.dragViewOffsetY); 2768 2769 // These represent the visual top and left of drag view if a dragRect was provided. 2770 // If a dragRect was not provided, then they correspond to the actual view left and 2771 // top, as the dragRect is in that case taken to be the entire dragView. 2772 // R.dimen.dragViewOffsetY. 2773 int left = x - xOffset; 2774 int top = y - yOffset; 2775 2776 // In order to find the visual center, we shift by half the dragRect 2777 res[0] = left + dragView.getDragRegion().width() / 2; 2778 res[1] = top + dragView.getDragRegion().height() / 2; 2779 2780 return res; 2781 } 2782 2783 private boolean isDragWidget(DragObject d) { 2784 return (d.dragInfo instanceof LauncherAppWidgetInfo || 2785 d.dragInfo instanceof PendingAddWidgetInfo); 2786 } 2787 private boolean isExternalDragWidget(DragObject d) { 2788 return d.dragSource != this && isDragWidget(d); 2789 } 2790 2791 public void onDragOver(DragObject d) { 2792 // Skip drag over events while we are dragging over side pages 2793 if (mInScrollArea) return; 2794 if (mIsSwitchingState) return; 2795 2796 Rect r = new Rect(); 2797 CellLayout layout = null; 2798 ItemInfo item = (ItemInfo) d.dragInfo; 2799 2800 // Ensure that we have proper spans for the item that we are dropping 2801 if (item.spanX < 0 || item.spanY < 0) throw new RuntimeException("Improper spans found"); 2802 mDragViewVisualCenter = getDragViewVisualCenter(d.x, d.y, d.xOffset, d.yOffset, 2803 d.dragView, mDragViewVisualCenter); 2804 2805 // Identify whether we have dragged over a side page 2806 if (isSmall()) { 2807 if (mLauncher.getHotseat() != null && !isExternalDragWidget(d)) { 2808 mLauncher.getHotseat().getHitRect(r); 2809 if (r.contains(d.x, d.y)) { 2810 layout = mLauncher.getHotseat().getLayout(); 2811 } 2812 } 2813 if (layout == null) { 2814 layout = findMatchingPageForDragOver(d.dragView, mDragViewVisualCenter[0], 2815 mDragViewVisualCenter[1], true); 2816 } 2817 if (layout != mDragTargetLayout) { 2818 // Cancel all intermediate folder states 2819 cleanupFolderCreation(d); 2820 2821 if (mDragTargetLayout != null) { 2822 mDragTargetLayout.setIsDragOverlapping(false); 2823 mDragTargetLayout.onDragExit(); 2824 } 2825 mDragTargetLayout = layout; 2826 if (mDragTargetLayout != null) { 2827 mDragTargetLayout.setIsDragOverlapping(true); 2828 mDragTargetLayout.onDragEnter(); 2829 } else { 2830 mLastDragOverView = null; 2831 } 2832 2833 boolean isInSpringLoadedMode = (mState == State.SPRING_LOADED); 2834 if (isInSpringLoadedMode) { 2835 if (mLauncher.isHotseatLayout(layout)) { 2836 mSpringLoadedDragController.cancel(); 2837 } else { 2838 mSpringLoadedDragController.setAlarm(mDragTargetLayout); 2839 } 2840 } 2841 } 2842 } else { 2843 // Test to see if we are over the hotseat otherwise just use the current page 2844 if (mLauncher.getHotseat() != null && !isDragWidget(d)) { 2845 mLauncher.getHotseat().getHitRect(r); 2846 if (r.contains(d.x, d.y)) { 2847 layout = mLauncher.getHotseat().getLayout(); 2848 } 2849 } 2850 if (layout == null) { 2851 layout = getCurrentDropLayout(); 2852 } 2853 if (layout != mDragTargetLayout) { 2854 if (mDragTargetLayout != null) { 2855 mDragTargetLayout.setIsDragOverlapping(false); 2856 mDragTargetLayout.onDragExit(); 2857 } 2858 mDragTargetLayout = layout; 2859 mDragTargetLayout.setIsDragOverlapping(true); 2860 mDragTargetLayout.onDragEnter(); 2861 } 2862 } 2863 2864 // Handle the drag over 2865 if (mDragTargetLayout != null) { 2866 final View child = (mDragInfo == null) ? null : mDragInfo.cell; 2867 2868 // We want the point to be mapped to the dragTarget. 2869 if (mLauncher.isHotseatLayout(mDragTargetLayout)) { 2870 mapPointFromSelfToSibling(mLauncher.getHotseat(), mDragViewVisualCenter); 2871 } else { 2872 mapPointFromSelfToChild(mDragTargetLayout, mDragViewVisualCenter, null); 2873 } 2874 ItemInfo info = (ItemInfo) d.dragInfo; 2875 2876 mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], 2877 (int) mDragViewVisualCenter[1], 1, 1, mDragTargetLayout, mTargetCell); 2878 final View dragOverView = mDragTargetLayout.getChildAt(mTargetCell[0], 2879 mTargetCell[1]); 2880 2881 boolean userFolderPending = willCreateUserFolder(info, mDragTargetLayout, 2882 mTargetCell, false); 2883 boolean isOverFolder = dragOverView instanceof FolderIcon; 2884 if (dragOverView != mLastDragOverView) { 2885 cancelFolderCreation(); 2886 if (mLastDragOverView != null && mLastDragOverView instanceof FolderIcon) { 2887 ((FolderIcon) mLastDragOverView).onDragExit(d.dragInfo); 2888 } 2889 } 2890 2891 if (userFolderPending && dragOverView != mLastDragOverView) { 2892 mFolderCreationAlarm.setOnAlarmListener(new 2893 FolderCreationAlarmListener(mDragTargetLayout, mTargetCell[0], mTargetCell[1])); 2894 mFolderCreationAlarm.setAlarm(FOLDER_CREATION_TIMEOUT); 2895 } 2896 2897 if (dragOverView != mLastDragOverView && isOverFolder) { 2898 ((FolderIcon) dragOverView).onDragEnter(d.dragInfo); 2899 if (mDragTargetLayout != null) { 2900 mDragTargetLayout.clearDragOutlines(); 2901 } 2902 } 2903 mLastDragOverView = dragOverView; 2904 2905 if (!mCreateUserFolderOnDrop && !isOverFolder) { 2906 mDragTargetLayout.visualizeDropLocation(child, mDragOutline, 2907 (int) mDragViewVisualCenter[0], (int) mDragViewVisualCenter[1], 2908 item.spanX, item.spanY); 2909 } 2910 } 2911 } 2912 2913 private void cleanupFolderCreation(DragObject d) { 2914 if (mDragFolderRingAnimator != null && mCreateUserFolderOnDrop) { 2915 mDragFolderRingAnimator.animateToNaturalState(); 2916 } 2917 if (mLastDragOverView != null && mLastDragOverView instanceof FolderIcon) { 2918 if (d != null) { 2919 ((FolderIcon) mLastDragOverView).onDragExit(d.dragInfo); 2920 } 2921 } 2922 mFolderCreationAlarm.cancelAlarm(); 2923 } 2924 2925 private void cancelFolderCreation() { 2926 if (mDragFolderRingAnimator != null && mCreateUserFolderOnDrop) { 2927 mDragFolderRingAnimator.animateToNaturalState(); 2928 } 2929 mCreateUserFolderOnDrop = false; 2930 mFolderCreationAlarm.cancelAlarm(); 2931 } 2932 2933 class FolderCreationAlarmListener implements OnAlarmListener { 2934 CellLayout layout; 2935 int cellX; 2936 int cellY; 2937 2938 public FolderCreationAlarmListener(CellLayout layout, int cellX, int cellY) { 2939 this.layout = layout; 2940 this.cellX = cellX; 2941 this.cellY = cellY; 2942 } 2943 2944 public void onAlarm(Alarm alarm) { 2945 if (mDragFolderRingAnimator == null) { 2946 mDragFolderRingAnimator = new FolderRingAnimator(mLauncher, null); 2947 } 2948 mDragFolderRingAnimator.setCell(cellX, cellY); 2949 mDragFolderRingAnimator.setCellLayout(layout); 2950 mDragFolderRingAnimator.animateToAcceptState(); 2951 layout.showFolderAccept(mDragFolderRingAnimator); 2952 layout.clearDragOutlines(); 2953 mCreateUserFolderOnDrop = true; 2954 } 2955 } 2956 2957 @Override 2958 public void getHitRect(Rect outRect) { 2959 // We want the workspace to have the whole area of the display (it will find the correct 2960 // cell layout to drop to in the existing drag/drop logic. 2961 final Display d = mLauncher.getWindowManager().getDefaultDisplay(); 2962 outRect.set(0, 0, d.getWidth(), d.getHeight()); 2963 } 2964 2965 /** 2966 * Add the item specified by dragInfo to the given layout. 2967 * @return true if successful 2968 */ 2969 public boolean addExternalItemToScreen(ItemInfo dragInfo, CellLayout layout) { 2970 if (layout.findCellForSpan(mTempEstimate, dragInfo.spanX, dragInfo.spanY)) { 2971 onDropExternal(dragInfo.dropPos, (ItemInfo) dragInfo, (CellLayout) layout, false); 2972 return true; 2973 } 2974 mLauncher.showOutOfSpaceMessage(); 2975 return false; 2976 } 2977 2978 private void onDropExternal(int[] touchXY, Object dragInfo, 2979 CellLayout cellLayout, boolean insertAtFirst) { 2980 onDropExternal(touchXY, dragInfo, cellLayout, insertAtFirst, null); 2981 } 2982 2983 /** 2984 * Drop an item that didn't originate on one of the workspace screens. 2985 * It may have come from Launcher (e.g. from all apps or customize), or it may have 2986 * come from another app altogether. 2987 * 2988 * NOTE: This can also be called when we are outside of a drag event, when we want 2989 * to add an item to one of the workspace screens. 2990 */ 2991 private void onDropExternal(final int[] touchXY, final Object dragInfo, 2992 final CellLayout cellLayout, boolean insertAtFirst, DragObject d) { 2993 final Runnable exitSpringLoadedRunnable = new Runnable() { 2994 @Override 2995 public void run() { 2996 mLauncher.exitSpringLoadedDragModeDelayed(true, false); 2997 } 2998 }; 2999 3000 ItemInfo info = (ItemInfo) dragInfo; 3001 int spanX = info.spanX; 3002 int spanY = info.spanY; 3003 if (mDragInfo != null) { 3004 spanX = mDragInfo.spanX; 3005 spanY = mDragInfo.spanY; 3006 } 3007 3008 final long container = mLauncher.isHotseatLayout(cellLayout) ? 3009 LauncherSettings.Favorites.CONTAINER_HOTSEAT : 3010 LauncherSettings.Favorites.CONTAINER_DESKTOP; 3011 final int screen = indexOfChild(cellLayout); 3012 if (!mLauncher.isHotseatLayout(cellLayout) && screen != mCurrentPage 3013 && mState != State.SPRING_LOADED) { 3014 snapToPage(screen); 3015 } 3016 3017 if (info instanceof PendingAddItemInfo) { 3018 final PendingAddItemInfo pendingInfo = (PendingAddItemInfo) dragInfo; 3019 3020 mTargetCell = findNearestVacantArea(touchXY[0], touchXY[1], spanX, spanY, null, 3021 cellLayout, mTargetCell); 3022 Runnable onAnimationCompleteRunnable = new Runnable() { 3023 @Override 3024 public void run() { 3025 // When dragging and dropping from customization tray, we deal with creating 3026 // widgets/shortcuts/folders in a slightly different way 3027 switch (pendingInfo.itemType) { 3028 case LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET: 3029 mLauncher.addAppWidgetFromDrop((PendingAddWidgetInfo) pendingInfo, 3030 container, screen, mTargetCell, null); 3031 break; 3032 case LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT: 3033 mLauncher.processShortcutFromDrop(pendingInfo.componentName, 3034 container, screen, mTargetCell, null); 3035 break; 3036 default: 3037 throw new IllegalStateException("Unknown item type: " + 3038 pendingInfo.itemType); 3039 } 3040 cellLayout.onDragExit(); 3041 } 3042 }; 3043 3044 // Now we animate the dragView, (ie. the widget or shortcut preview) into its final 3045 // location and size on the home screen. 3046 int loc[] = new int[2]; 3047 cellLayout.cellToPoint(mTargetCell[0], mTargetCell[1], loc); 3048 3049 RectF r = new RectF(); 3050 cellLayout.cellToRect(mTargetCell[0], mTargetCell[1], spanX, spanY, r); 3051 setFinalTransitionTransform(cellLayout); 3052 float cellLayoutScale = 3053 mLauncher.getDragLayer().getDescendantCoordRelativeToSelf(cellLayout, loc); 3054 resetTransitionTransform(cellLayout); 3055 3056 float dragViewScale = r.width() / d.dragView.getMeasuredWidth(); 3057 // The animation will scale the dragView about its center, so we need to center about 3058 // the final location. 3059 loc[0] -= (d.dragView.getMeasuredWidth() - cellLayoutScale * r.width()) / 2; 3060 loc[1] -= (d.dragView.getMeasuredHeight() - cellLayoutScale * r.height()) / 2; 3061 3062 mLauncher.getDragLayer().animateViewIntoPosition(d.dragView, loc, 3063 dragViewScale * cellLayoutScale, onAnimationCompleteRunnable); 3064 } else { 3065 // This is for other drag/drop cases, like dragging from All Apps 3066 View view = null; 3067 3068 switch (info.itemType) { 3069 case LauncherSettings.Favorites.ITEM_TYPE_APPLICATION: 3070 case LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT: 3071 if (info.container == NO_ID && info instanceof ApplicationInfo) { 3072 // Came from all apps -- make a copy 3073 info = new ShortcutInfo((ApplicationInfo) info); 3074 } 3075 view = mLauncher.createShortcut(R.layout.application, cellLayout, 3076 (ShortcutInfo) info); 3077 break; 3078 case LauncherSettings.Favorites.ITEM_TYPE_FOLDER: 3079 view = FolderIcon.fromXml(R.layout.folder_icon, mLauncher, cellLayout, 3080 (FolderInfo) info, mIconCache); 3081 break; 3082 default: 3083 throw new IllegalStateException("Unknown item type: " + info.itemType); 3084 } 3085 3086 // First we find the cell nearest to point at which the item is 3087 // dropped, without any consideration to whether there is an item there. 3088 if (touchXY != null) { 3089 mTargetCell = findNearestArea((int) touchXY[0], (int) touchXY[1], spanX, spanY, 3090 cellLayout, mTargetCell); 3091 d.postAnimationRunnable = exitSpringLoadedRunnable; 3092 if (createUserFolderIfNecessary(view, container, cellLayout, mTargetCell, true, 3093 d.dragView, d.postAnimationRunnable)) { 3094 return; 3095 } 3096 if (addToExistingFolderIfNecessary(view, cellLayout, mTargetCell, d, true)) { 3097 return; 3098 } 3099 } 3100 3101 if (touchXY != null) { 3102 // when dragging and dropping, just find the closest free spot 3103 mTargetCell = findNearestVacantArea(touchXY[0], touchXY[1], 1, 1, null, 3104 cellLayout, mTargetCell); 3105 } else { 3106 cellLayout.findCellForSpan(mTargetCell, 1, 1); 3107 } 3108 addInScreen(view, container, screen, mTargetCell[0], mTargetCell[1], info.spanX, 3109 info.spanY, insertAtFirst); 3110 cellLayout.onDropChild(view); 3111 cellLayout.animateDrop(); 3112 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) view.getLayoutParams(); 3113 cellLayout.getChildrenLayout().measureChild(view); 3114 3115 LauncherModel.addOrMoveItemInDatabase(mLauncher, info, container, screen, 3116 lp.cellX, lp.cellY); 3117 3118 if (d.dragView != null) { 3119 // We wrap the animation call in the temporary set and reset of the current 3120 // cellLayout to its final transform -- this means we animate the drag view to 3121 // the correct final location. 3122 setFinalTransitionTransform(cellLayout); 3123 mLauncher.getDragLayer().animateViewIntoPosition(d.dragView, view, 3124 exitSpringLoadedRunnable); 3125 resetTransitionTransform(cellLayout); 3126 } 3127 } 3128 } 3129 3130 public void setFinalTransitionTransform(CellLayout layout) { 3131 if (isSwitchingState()) { 3132 int index = indexOfChild(layout); 3133 mCurrentScaleX = layout.getScaleX(); 3134 mCurrentScaleY = layout.getScaleY(); 3135 mCurrentTranslationX = layout.getTranslationX(); 3136 mCurrentTranslationY = layout.getTranslationY(); 3137 mCurrentRotationY = layout.getRotationY(); 3138 layout.setScaleX(mNewScaleXs[index]); 3139 layout.setScaleY(mNewScaleYs[index]); 3140 layout.setTranslationX(mNewTranslationXs[index]); 3141 layout.setTranslationY(mNewTranslationYs[index]); 3142 layout.setRotationY(mNewRotationYs[index]); 3143 } 3144 } 3145 public void resetTransitionTransform(CellLayout layout) { 3146 if (isSwitchingState()) { 3147 mCurrentScaleX = layout.getScaleX(); 3148 mCurrentScaleY = layout.getScaleY(); 3149 mCurrentTranslationX = layout.getTranslationX(); 3150 mCurrentTranslationY = layout.getTranslationY(); 3151 mCurrentRotationY = layout.getRotationY(); 3152 layout.setScaleX(mCurrentScaleX); 3153 layout.setScaleY(mCurrentScaleY); 3154 layout.setTranslationX(mCurrentTranslationX); 3155 layout.setTranslationY(mCurrentTranslationY); 3156 layout.setRotationY(mCurrentRotationY); 3157 } 3158 } 3159 3160 /** 3161 * Return the current {@link CellLayout}, correctly picking the destination 3162 * screen while a scroll is in progress. 3163 */ 3164 public CellLayout getCurrentDropLayout() { 3165 return (CellLayout) getChildAt(mNextPage == INVALID_PAGE ? mCurrentPage : mNextPage); 3166 } 3167 3168 /** 3169 * Return the current CellInfo describing our current drag; this method exists 3170 * so that Launcher can sync this object with the correct info when the activity is created/ 3171 * destroyed 3172 * 3173 */ 3174 public CellLayout.CellInfo getDragInfo() { 3175 return mDragInfo; 3176 } 3177 3178 /** 3179 * Calculate the nearest cell where the given object would be dropped. 3180 * 3181 * pixelX and pixelY should be in the coordinate system of layout 3182 */ 3183 private int[] findNearestVacantArea(int pixelX, int pixelY, 3184 int spanX, int spanY, View ignoreView, CellLayout layout, int[] recycle) { 3185 return layout.findNearestVacantArea( 3186 pixelX, pixelY, spanX, spanY, ignoreView, recycle); 3187 } 3188 3189 /** 3190 * Calculate the nearest cell where the given object would be dropped. 3191 * 3192 * pixelX and pixelY should be in the coordinate system of layout 3193 */ 3194 private int[] findNearestArea(int pixelX, int pixelY, 3195 int spanX, int spanY, CellLayout layout, int[] recycle) { 3196 return layout.findNearestArea( 3197 pixelX, pixelY, spanX, spanY, recycle); 3198 } 3199 3200 void setup(Launcher launcher, DragController dragController) { 3201 mLauncher = launcher; 3202 mSpringLoadedDragController = new SpringLoadedDragController(mLauncher); 3203 mDragController = dragController; 3204 3205 // hardware layers on children are enabled on startup, but should be disabled until 3206 // needed 3207 updateChildrenLayersEnabled(); 3208 setWallpaperDimension(); 3209 } 3210 3211 /** 3212 * Called at the end of a drag which originated on the workspace. 3213 */ 3214 public void onDropCompleted(View target, DragObject d, boolean success) { 3215 if (success) { 3216 if (target != this) { 3217 if (mDragInfo != null) { 3218 getParentCellLayoutForView(mDragInfo.cell).removeView(mDragInfo.cell); 3219 if (mDragInfo.cell instanceof DropTarget) { 3220 mDragController.removeDropTarget((DropTarget) mDragInfo.cell); 3221 } 3222 } 3223 } 3224 } else if (mDragInfo != null) { 3225 // NOTE: When 'success' is true, onDragExit is called by the DragController before 3226 // calling onDropCompleted(). We call it ourselves here, but maybe this should be 3227 // moved into DragController.cancelDrag(). 3228 doDragExit(null); 3229 CellLayout cellLayout; 3230 if (mLauncher.isHotseatLayout(target)) { 3231 cellLayout = mLauncher.getHotseat().getLayout(); 3232 } else { 3233 cellLayout = (CellLayout) getChildAt(mDragInfo.screen); 3234 } 3235 cellLayout.onDropChild(mDragInfo.cell); 3236 } 3237 mDragOutline = null; 3238 mDragInfo = null; 3239 } 3240 3241 public boolean isDropEnabled() { 3242 return true; 3243 } 3244 3245 @Override 3246 protected void onRestoreInstanceState(Parcelable state) { 3247 super.onRestoreInstanceState(state); 3248 Launcher.setScreen(mCurrentPage); 3249 } 3250 3251 @Override 3252 public void scrollLeft() { 3253 if (!isSmall() && !mIsSwitchingState) { 3254 super.scrollLeft(); 3255 } 3256 Folder openFolder = getOpenFolder(); 3257 if (openFolder != null) { 3258 openFolder.completeDragExit(); 3259 } 3260 } 3261 3262 @Override 3263 public void scrollRight() { 3264 if (!isSmall() && !mIsSwitchingState) { 3265 super.scrollRight(); 3266 } 3267 Folder openFolder = getOpenFolder(); 3268 if (openFolder != null) { 3269 openFolder.completeDragExit(); 3270 } 3271 } 3272 3273 @Override 3274 public void onEnterScrollArea(int x, int y, int direction) { 3275 // Ignore the scroll area if we are dragging over the hot seat 3276 if (mLauncher.getHotseat() != null) { 3277 Rect r = new Rect(); 3278 mLauncher.getHotseat().getHitRect(r); 3279 if (r.contains(x, y)) { 3280 return; 3281 } 3282 } 3283 3284 if (!isSmall() && !mIsSwitchingState) { 3285 mInScrollArea = true; 3286 3287 final int page = mCurrentPage + (direction == DragController.SCROLL_LEFT ? -1 : 1); 3288 final CellLayout layout = (CellLayout) getChildAt(page); 3289 cancelFolderCreation(); 3290 3291 if (layout != null) { 3292 // Exit the current layout and mark the overlapping layout 3293 if (mDragTargetLayout != null) { 3294 mDragTargetLayout.setIsDragOverlapping(false); 3295 mDragTargetLayout.onDragExit(); 3296 } 3297 mDragTargetLayout = layout; 3298 mDragTargetLayout.setIsDragOverlapping(true); 3299 3300 // Workspace is responsible for drawing the edge glow on adjacent pages, 3301 // so we need to redraw the workspace when this may have changed. 3302 invalidate(); 3303 } 3304 } 3305 } 3306 3307 @Override 3308 public void onExitScrollArea() { 3309 if (mInScrollArea) { 3310 if (mDragTargetLayout != null) { 3311 // Unmark the overlapping layout and re-enter the current layout 3312 mDragTargetLayout.setIsDragOverlapping(false); 3313 mDragTargetLayout = getCurrentDropLayout(); 3314 mDragTargetLayout.onDragEnter(); 3315 3316 // Workspace is responsible for drawing the edge glow on adjacent pages, 3317 // so we need to redraw the workspace when this may have changed. 3318 invalidate(); 3319 } 3320 mInScrollArea = false; 3321 } 3322 } 3323 3324 private void onResetScrollArea() { 3325 if (mDragTargetLayout != null) { 3326 // Unmark the overlapping layout 3327 mDragTargetLayout.setIsDragOverlapping(false); 3328 3329 // Workspace is responsible for drawing the edge glow on adjacent pages, 3330 // so we need to redraw the workspace when this may have changed. 3331 invalidate(); 3332 } 3333 mInScrollArea = false; 3334 } 3335 3336 /** 3337 * Returns a specific CellLayout 3338 */ 3339 CellLayout getParentCellLayoutForView(View v) { 3340 ArrayList<CellLayout> layouts = getWorkspaceAndHotseatCellLayouts(); 3341 for (CellLayout layout : layouts) { 3342 if (layout.getChildrenLayout().indexOfChild(v) > -1) { 3343 return layout; 3344 } 3345 } 3346 return null; 3347 } 3348 3349 /** 3350 * Returns a list of all the CellLayouts in the workspace. 3351 */ 3352 ArrayList<CellLayout> getWorkspaceAndHotseatCellLayouts() { 3353 ArrayList<CellLayout> layouts = new ArrayList<CellLayout>(); 3354 int screenCount = getChildCount(); 3355 for (int screen = 0; screen < screenCount; screen++) { 3356 layouts.add(((CellLayout) getChildAt(screen))); 3357 } 3358 if (mLauncher.getHotseat() != null) { 3359 layouts.add(mLauncher.getHotseat().getLayout()); 3360 } 3361 return layouts; 3362 } 3363 3364 /** 3365 * We should only use this to search for specific children. Do not use this method to modify 3366 * CellLayoutChildren directly. 3367 */ 3368 ArrayList<CellLayoutChildren> getWorkspaceAndHotseatCellLayoutChildren() { 3369 ArrayList<CellLayoutChildren> childrenLayouts = new ArrayList<CellLayoutChildren>(); 3370 int screenCount = getChildCount(); 3371 for (int screen = 0; screen < screenCount; screen++) { 3372 childrenLayouts.add(((CellLayout) getChildAt(screen)).getChildrenLayout()); 3373 } 3374 if (mLauncher.getHotseat() != null) { 3375 childrenLayouts.add(mLauncher.getHotseat().getLayout().getChildrenLayout()); 3376 } 3377 return childrenLayouts; 3378 } 3379 3380 public Folder getFolderForTag(Object tag) { 3381 ArrayList<CellLayoutChildren> childrenLayouts = getWorkspaceAndHotseatCellLayoutChildren(); 3382 for (CellLayoutChildren layout: childrenLayouts) { 3383 int count = layout.getChildCount(); 3384 for (int i = 0; i < count; i++) { 3385 View child = layout.getChildAt(i); 3386 if (child instanceof Folder) { 3387 Folder f = (Folder) child; 3388 if (f.getInfo() == tag && f.getInfo().opened) { 3389 return f; 3390 } 3391 } 3392 } 3393 } 3394 return null; 3395 } 3396 3397 public View getViewForTag(Object tag) { 3398 ArrayList<CellLayoutChildren> childrenLayouts = getWorkspaceAndHotseatCellLayoutChildren(); 3399 for (CellLayoutChildren layout: childrenLayouts) { 3400 int count = layout.getChildCount(); 3401 for (int i = 0; i < count; i++) { 3402 View child = layout.getChildAt(i); 3403 if (child.getTag() == tag) { 3404 return child; 3405 } 3406 } 3407 } 3408 return null; 3409 } 3410 3411 void clearDropTargets() { 3412 ArrayList<CellLayoutChildren> childrenLayouts = getWorkspaceAndHotseatCellLayoutChildren(); 3413 for (CellLayoutChildren layout: childrenLayouts) { 3414 int childCount = layout.getChildCount(); 3415 for (int j = 0; j < childCount; j++) { 3416 View v = layout.getChildAt(j); 3417 if (v instanceof DropTarget) { 3418 mDragController.removeDropTarget((DropTarget) v); 3419 } 3420 } 3421 } 3422 } 3423 3424 void removeItems(final ArrayList<ApplicationInfo> apps) { 3425 final AppWidgetManager widgets = AppWidgetManager.getInstance(getContext()); 3426 3427 final HashSet<String> packageNames = new HashSet<String>(); 3428 final int appCount = apps.size(); 3429 for (int i = 0; i < appCount; i++) { 3430 packageNames.add(apps.get(i).componentName.getPackageName()); 3431 } 3432 3433 ArrayList<CellLayout> cellLayouts = getWorkspaceAndHotseatCellLayouts(); 3434 for (final CellLayout layoutParent: cellLayouts) { 3435 final ViewGroup layout = layoutParent.getChildrenLayout(); 3436 3437 // Avoid ANRs by treating each screen separately 3438 post(new Runnable() { 3439 public void run() { 3440 final ArrayList<View> childrenToRemove = new ArrayList<View>(); 3441 childrenToRemove.clear(); 3442 3443 int childCount = layout.getChildCount(); 3444 for (int j = 0; j < childCount; j++) { 3445 final View view = layout.getChildAt(j); 3446 Object tag = view.getTag(); 3447 3448 if (tag instanceof ShortcutInfo) { 3449 final ShortcutInfo info = (ShortcutInfo) tag; 3450 final Intent intent = info.intent; 3451 final ComponentName name = intent.getComponent(); 3452 3453 if (Intent.ACTION_MAIN.equals(intent.getAction()) && name != null) { 3454 for (String packageName: packageNames) { 3455 if (packageName.equals(name.getPackageName())) { 3456 LauncherModel.deleteItemFromDatabase(mLauncher, info); 3457 childrenToRemove.add(view); 3458 } 3459 } 3460 } 3461 } else if (tag instanceof FolderInfo) { 3462 final FolderInfo info = (FolderInfo) tag; 3463 final ArrayList<ShortcutInfo> contents = info.contents; 3464 final int contentsCount = contents.size(); 3465 final ArrayList<ShortcutInfo> appsToRemoveFromFolder = 3466 new ArrayList<ShortcutInfo>(); 3467 3468 for (int k = 0; k < contentsCount; k++) { 3469 final ShortcutInfo appInfo = contents.get(k); 3470 final Intent intent = appInfo.intent; 3471 final ComponentName name = intent.getComponent(); 3472 3473 if (Intent.ACTION_MAIN.equals(intent.getAction()) && name != null) { 3474 for (String packageName: packageNames) { 3475 if (packageName.equals(name.getPackageName())) { 3476 appsToRemoveFromFolder.add(appInfo); 3477 } 3478 } 3479 } 3480 } 3481 for (ShortcutInfo item: appsToRemoveFromFolder) { 3482 info.remove(item); 3483 LauncherModel.deleteItemFromDatabase(mLauncher, item); 3484 } 3485 } else if (tag instanceof LauncherAppWidgetInfo) { 3486 final LauncherAppWidgetInfo info = (LauncherAppWidgetInfo) tag; 3487 final AppWidgetProviderInfo provider = 3488 widgets.getAppWidgetInfo(info.appWidgetId); 3489 if (provider != null) { 3490 for (String packageName: packageNames) { 3491 if (packageName.equals(provider.provider.getPackageName())) { 3492 LauncherModel.deleteItemFromDatabase(mLauncher, info); 3493 childrenToRemove.add(view); 3494 } 3495 } 3496 } 3497 } 3498 } 3499 3500 childCount = childrenToRemove.size(); 3501 for (int j = 0; j < childCount; j++) { 3502 View child = childrenToRemove.get(j); 3503 // Note: We can not remove the view directly from CellLayoutChildren as this 3504 // does not re-mark the spaces as unoccupied. 3505 layoutParent.removeViewInLayout(child); 3506 if (child instanceof DropTarget) { 3507 mDragController.removeDropTarget((DropTarget)child); 3508 } 3509 } 3510 3511 if (childCount > 0) { 3512 layout.requestLayout(); 3513 layout.invalidate(); 3514 } 3515 } 3516 }); 3517 } 3518 } 3519 3520 void updateShortcuts(ArrayList<ApplicationInfo> apps) { 3521 ArrayList<CellLayoutChildren> childrenLayouts = getWorkspaceAndHotseatCellLayoutChildren(); 3522 for (CellLayoutChildren layout: childrenLayouts) { 3523 int childCount = layout.getChildCount(); 3524 for (int j = 0; j < childCount; j++) { 3525 final View view = layout.getChildAt(j); 3526 Object tag = view.getTag(); 3527 if (tag instanceof ShortcutInfo) { 3528 ShortcutInfo info = (ShortcutInfo)tag; 3529 // We need to check for ACTION_MAIN otherwise getComponent() might 3530 // return null for some shortcuts (for instance, for shortcuts to 3531 // web pages.) 3532 final Intent intent = info.intent; 3533 final ComponentName name = intent.getComponent(); 3534 if (info.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPLICATION && 3535 Intent.ACTION_MAIN.equals(intent.getAction()) && name != null) { 3536 final int appCount = apps.size(); 3537 for (int k = 0; k < appCount; k++) { 3538 ApplicationInfo app = apps.get(k); 3539 if (app.componentName.equals(name)) { 3540 info.setIcon(mIconCache.getIcon(info.intent)); 3541 ((TextView)view).setCompoundDrawablesWithIntrinsicBounds(null, 3542 new FastBitmapDrawable(info.getIcon(mIconCache)), 3543 null, null); 3544 } 3545 } 3546 } 3547 } 3548 } 3549 } 3550 } 3551 3552 void moveToDefaultScreen(boolean animate) { 3553 if (!isSmall()) { 3554 if (animate) { 3555 snapToPage(mDefaultPage); 3556 } else { 3557 setCurrentPage(mDefaultPage); 3558 } 3559 } 3560 getChildAt(mDefaultPage).requestFocus(); 3561 } 3562 3563 @Override 3564 public void syncPages() { 3565 } 3566 3567 @Override 3568 public void syncPageItems(int page) { 3569 } 3570 3571 @Override 3572 protected String getCurrentPageDescription() { 3573 int page = (mNextPage != INVALID_PAGE) ? mNextPage : mCurrentPage; 3574 return String.format(mContext.getString(R.string.workspace_scroll_format), 3575 page + 1, getChildCount()); 3576 } 3577 3578 public void getLocationInDragLayer(int[] loc) { 3579 mLauncher.getDragLayer().getLocationInDragLayer(this, loc); 3580 } 3581 3582 /** 3583 * Return true because we want the scrolling indicator to stretch to fit the space. 3584 */ 3585 protected boolean hasElasticScrollIndicator() { 3586 return true; 3587 } 3588 3589 void showDockDivider(boolean immediately) { 3590 final ViewGroup parent = (ViewGroup) getParent(); 3591 final View qsbDivider = (ImageView) (parent.findViewById(R.id.qsb_divider)); 3592 final View dockDivider = (ImageView) (parent.findViewById(R.id.dock_divider)); 3593 if (qsbDivider != null && dockDivider != null) { 3594 qsbDivider.setVisibility(View.VISIBLE); 3595 dockDivider.setVisibility(View.VISIBLE); 3596 if (mDividerAnimator != null) { 3597 mDividerAnimator.cancel(); 3598 mDividerAnimator = null; 3599 } 3600 if (immediately) { 3601 qsbDivider.setAlpha(1f); 3602 dockDivider.setAlpha(1f); 3603 } else { 3604 mDividerAnimator = new AnimatorSet(); 3605 mDividerAnimator.playTogether(ObjectAnimator.ofFloat(qsbDivider, "alpha", 1f), 3606 ObjectAnimator.ofFloat(dockDivider, "alpha", 1f)); 3607 mDividerAnimator.setDuration(sScrollIndicatorFadeInDuration); 3608 mDividerAnimator.start(); 3609 } 3610 } 3611 } 3612 3613 void hideDockDivider(boolean immediately) { 3614 final ViewGroup parent = (ViewGroup) getParent(); 3615 final View qsbDivider = (ImageView) (parent.findViewById(R.id.qsb_divider)); 3616 final View dockDivider = (ImageView) (parent.findViewById(R.id.dock_divider)); 3617 if (qsbDivider != null && dockDivider != null) { 3618 if (mDividerAnimator != null) { 3619 mDividerAnimator.cancel(); 3620 mDividerAnimator = null; 3621 } 3622 if (immediately) { 3623 qsbDivider.setVisibility(View.GONE); 3624 dockDivider.setVisibility(View.GONE); 3625 qsbDivider.setAlpha(0f); 3626 dockDivider.setAlpha(0f); 3627 } else { 3628 mDividerAnimator = new AnimatorSet(); 3629 mDividerAnimator.playTogether(ObjectAnimator.ofFloat(qsbDivider, "alpha", 0f), 3630 ObjectAnimator.ofFloat(dockDivider, "alpha", 0f)); 3631 mDividerAnimator.addListener(new AnimatorListenerAdapter() { 3632 private boolean cancelled = false; 3633 @Override 3634 public void onAnimationCancel(android.animation.Animator animation) { 3635 cancelled = true; 3636 } 3637 @Override 3638 public void onAnimationEnd(android.animation.Animator animation) { 3639 if (!cancelled) { 3640 qsbDivider.setVisibility(View.GONE); 3641 dockDivider.setVisibility(View.GONE); 3642 } 3643 } 3644 }); 3645 mDividerAnimator.setDuration(sScrollIndicatorFadeOutDuration); 3646 mDividerAnimator.start(); 3647 } 3648 } 3649 } 3650} 3651