Workspace.java revision 1228b3bc8e523ad07bcac602d89890690c9f06ef
1/* 2 * Copyright (C) 2008 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17package com.android.launcher2; 18 19import android.animation.Animator; 20import android.animation.AnimatorListenerAdapter; 21import android.animation.AnimatorSet; 22import android.animation.ObjectAnimator; 23import android.animation.TimeInterpolator; 24import android.animation.ValueAnimator; 25import android.animation.Animator.AnimatorListener; 26import android.animation.ValueAnimator.AnimatorUpdateListener; 27import android.app.AlertDialog; 28import android.app.WallpaperManager; 29import android.appwidget.AppWidgetManager; 30import android.appwidget.AppWidgetProviderInfo; 31import android.content.ClipData; 32import android.content.ClipDescription; 33import android.content.ComponentName; 34import android.content.Context; 35import android.content.Intent; 36import android.content.pm.PackageManager; 37import android.content.res.Resources; 38import android.content.res.TypedArray; 39import android.graphics.Bitmap; 40import android.graphics.Camera; 41import android.graphics.Canvas; 42import android.graphics.Color; 43import android.graphics.Matrix; 44import android.graphics.Paint; 45import android.graphics.Rect; 46import android.graphics.RectF; 47import android.graphics.Region.Op; 48import android.graphics.drawable.Drawable; 49import android.os.IBinder; 50import android.os.Parcelable; 51import android.util.AttributeSet; 52import android.util.DisplayMetrics; 53import android.util.Log; 54import android.util.Pair; 55import android.view.Display; 56import android.view.DragEvent; 57import android.view.MotionEvent; 58import android.view.View; 59import android.view.ViewGroup; 60import android.view.animation.DecelerateInterpolator; 61import android.widget.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 // These animators are used to fade the children's outlines 100 private ObjectAnimator mChildrenOutlineFadeInAnimation; 101 private ObjectAnimator mChildrenOutlineFadeOutAnimation; 102 private float mChildrenOutlineAlpha = 0; 103 104 // These properties refer to the background protection gradient used for AllApps and Customize 105 private ValueAnimator mBackgroundFadeInAnimation; 106 private ValueAnimator mBackgroundFadeOutAnimation; 107 private Drawable mBackground; 108 boolean mDrawBackground = true; 109 private float mBackgroundAlpha = 0; 110 private float mOverScrollMaxBackgroundAlpha = 0.0f; 111 private int mOverScrollPageIndex = -1; 112 113 private final WallpaperManager mWallpaperManager; 114 private IBinder mWindowToken; 115 116 private int mDefaultPage; 117 118 /** 119 * CellInfo for the cell that is currently being dragged 120 */ 121 private CellLayout.CellInfo mDragInfo; 122 123 /** 124 * Target drop area calculated during last acceptDrop call. 125 */ 126 private int[] mTargetCell = new int[2]; 127 128 /** 129 * The CellLayout that is currently being dragged over 130 */ 131 private CellLayout mDragTargetLayout = null; 132 133 private Launcher mLauncher; 134 private IconCache mIconCache; 135 private DragController mDragController; 136 137 // These are temporary variables to prevent having to allocate a new object just to 138 // return an (x, y) value from helper functions. Do NOT use them to maintain other state. 139 private int[] mTempCell = new int[2]; 140 private int[] mTempEstimate = new int[2]; 141 private float[] mDragViewVisualCenter = new float[2]; 142 private float[] mTempDragCoordinates = new float[2]; 143 private float[] mTempTouchCoordinates = new float[2]; 144 private float[] mTempCellLayoutCenterCoordinates = new float[2]; 145 private float[] mTempDragBottomRightCoordinates = new float[2]; 146 private Matrix mTempInverseMatrix = new Matrix(); 147 148 private SpringLoadedDragController mSpringLoadedDragController; 149 private float mSpringLoadedShrinkFactor; 150 151 private static final int DEFAULT_CELL_COUNT_X = 4; 152 private static final int DEFAULT_CELL_COUNT_Y = 4; 153 154 // State variable that indicates whether the pages are small (ie when you're 155 // in all apps or customize mode) 156 157 enum State { NORMAL, SPRING_LOADED, SMALL }; 158 private State mState; 159 private boolean mIsSwitchingState = false; 160 161 private boolean mSwitchStateAfterFirstLayout = false; 162 private State mStateAfterFirstLayout; 163 164 private AnimatorSet mAnimator; 165 private AnimatorListener mShrinkAnimationListener; 166 private AnimatorListener mUnshrinkAnimationListener; 167 // Working around the face that cancelled animations may not actually be cancelled if they 168 // are cancelled before starting 169 private boolean mShrinkAnimationEnabled; 170 private boolean mUnshrinkAnimationEnabled; 171 172 boolean mAnimatingViewIntoPlace = false; 173 boolean mIsDragOccuring = false; 174 boolean mChildrenLayersEnabled = true; 175 176 /** Is the user is dragging an item near the edge of a page? */ 177 private boolean mInScrollArea = false; 178 179 private final HolographicOutlineHelper mOutlineHelper = new HolographicOutlineHelper(); 180 private Bitmap mDragOutline = null; 181 private final Rect mTempRect = new Rect(); 182 private final int[] mTempXY = new int[2]; 183 184 // Paint used to draw external drop outline 185 private final Paint mExternalDragOutlinePaint = new Paint(); 186 187 // Camera and Matrix used to determine the final position of a neighboring CellLayout 188 private final Matrix mMatrix = new Matrix(); 189 private final Camera mCamera = new Camera(); 190 private final float mTempFloat2[] = new float[2]; 191 192 enum WallpaperVerticalOffset { TOP, MIDDLE, BOTTOM }; 193 int mWallpaperWidth; 194 int mWallpaperHeight; 195 WallpaperOffsetInterpolator mWallpaperOffset; 196 boolean mUpdateWallpaperOffsetImmediately = false; 197 boolean mSyncWallpaperOffsetWithScroll = true; 198 private Runnable mDelayedResizeRunnable; 199 200 // Variables relating to the creation of user folders by hovering shortcuts over shortcuts 201 private static final int FOLDER_CREATION_TIMEOUT = 250; 202 private final Alarm mFolderCreationAlarm = new Alarm(); 203 private FolderRingAnimator mDragFolderRingAnimator = null; 204 private View mLastDragOverView = null; 205 private boolean mCreateUserFolderOnDrop = false; 206 207 // Variables relating to touch disambiguation (scrolling workspace vs. scrolling a widget) 208 private float mXDown; 209 private float mYDown; 210 final static float START_DAMPING_TOUCH_SLOP_ANGLE = (float) Math.PI / 6; 211 final static float MAX_SWIPE_ANGLE = (float) Math.PI / 3; 212 final static float TOUCH_SLOP_DAMPING_FACTOR = 4; 213 214 // These variables are used for storing the initial and final values during workspace animations 215 private float mCurrentScaleX; 216 private float mCurrentScaleY; 217 private float mCurrentRotationY; 218 private float mCurrentTranslationX; 219 private float mCurrentTranslationY; 220 private float[] mOldTranslationXs; 221 private float[] mOldTranslationYs; 222 private float[] mOldScaleXs; 223 private float[] mOldScaleYs; 224 private float[] mOldBackgroundAlphas; 225 private float[] mOldBackgroundAlphaMultipliers; 226 private float[] mOldAlphas; 227 private float[] mOldRotationYs; 228 private float[] mNewTranslationXs; 229 private float[] mNewTranslationYs; 230 private float[] mNewScaleXs; 231 private float[] mNewScaleYs; 232 private float[] mNewBackgroundAlphas; 233 private float[] mNewBackgroundAlphaMultipliers; 234 private float[] mNewAlphas; 235 private float[] mNewRotationYs; 236 private float mTransitionProgress; 237 238 /** 239 * Used to inflate the Workspace from XML. 240 * 241 * @param context The application's context. 242 * @param attrs The attributes set containing the Workspace's customization values. 243 */ 244 public Workspace(Context context, AttributeSet attrs) { 245 this(context, attrs, 0); 246 } 247 248 /** 249 * Used to inflate the Workspace from XML. 250 * 251 * @param context The application's context. 252 * @param attrs The attributes set containing the Workspace's customization values. 253 * @param defStyle Unused. 254 */ 255 public Workspace(Context context, AttributeSet attrs, int defStyle) { 256 super(context, attrs, defStyle); 257 mContentIsRefreshable = false; 258 259 // With workspace, data is available straight from the get-go 260 setDataIsReady(); 261 262 if (!LauncherApplication.isScreenLarge()) { 263 mFadeInAdjacentScreens = false; 264 } 265 266 mWallpaperManager = WallpaperManager.getInstance(context); 267 268 int cellCountX = DEFAULT_CELL_COUNT_X; 269 int cellCountY = DEFAULT_CELL_COUNT_Y; 270 271 TypedArray a = context.obtainStyledAttributes(attrs, 272 R.styleable.Workspace, defStyle, 0); 273 274 final Resources res = context.getResources(); 275 if (LauncherApplication.isScreenLarge()) { 276 // Determine number of rows/columns dynamically 277 // TODO: This code currently fails on tablets with an aspect ratio < 1.3. 278 // Around that ratio we should make cells the same size in portrait and 279 // landscape 280 TypedArray actionBarSizeTypedArray = 281 context.obtainStyledAttributes(new int[] { android.R.attr.actionBarSize }); 282 final float actionBarHeight = actionBarSizeTypedArray.getDimension(0, 0f); 283 final float systemBarHeight = res.getDimension(R.dimen.status_bar_height); 284 final float smallestScreenDim = res.getConfiguration().smallestScreenWidthDp; 285 286 cellCountX = 1; 287 while (CellLayout.widthInPortrait(res, cellCountX + 1) <= smallestScreenDim) { 288 cellCountX++; 289 } 290 291 cellCountY = 1; 292 while (actionBarHeight + CellLayout.heightInLandscape(res, cellCountY + 1) 293 <= smallestScreenDim - systemBarHeight) { 294 cellCountY++; 295 } 296 } 297 298 mSpringLoadedShrinkFactor = 299 res.getInteger(R.integer.config_workspaceSpringLoadShrinkPercentage) / 100.0f; 300 301 // if the value is manually specified, use that instead 302 cellCountX = a.getInt(R.styleable.Workspace_cellCountX, cellCountX); 303 cellCountY = a.getInt(R.styleable.Workspace_cellCountY, cellCountY); 304 mDefaultPage = a.getInt(R.styleable.Workspace_defaultScreen, 1); 305 a.recycle(); 306 307 LauncherModel.updateWorkspaceLayoutCells(cellCountX, cellCountY); 308 setHapticFeedbackEnabled(false); 309 310 initWorkspace(); 311 312 // Disable multitouch across the workspace/all apps/customize tray 313 setMotionEventSplittingEnabled(true); 314 } 315 316 public void onDragStart(DragSource source, Object info, int dragAction) { 317 mIsDragOccuring = true; 318 updateChildrenLayersEnabled(); 319 mLauncher.lockScreenOrientation(); 320 } 321 322 public void onDragEnd() { 323 mIsDragOccuring = false; 324 updateChildrenLayersEnabled(); 325 mLauncher.unlockScreenOrientation(); 326 } 327 328 /** 329 * Initializes various states for this workspace. 330 */ 331 protected void initWorkspace() { 332 Context context = getContext(); 333 mCurrentPage = mDefaultPage; 334 Launcher.setScreen(mCurrentPage); 335 LauncherApplication app = (LauncherApplication)context.getApplicationContext(); 336 mIconCache = app.getIconCache(); 337 mExternalDragOutlinePaint.setAntiAlias(true); 338 setWillNotDraw(false); 339 340 try { 341 final Resources res = getResources(); 342 mBackground = res.getDrawable(R.drawable.apps_customize_bg); 343 } catch (Resources.NotFoundException e) { 344 // In this case, we will skip drawing background protection 345 } 346 347 mUnshrinkAnimationListener = new AnimatorListenerAdapter() { 348 @Override 349 public void onAnimationStart(Animator animation) { 350 mIsSwitchingState = true; 351 } 352 353 @Override 354 public void onAnimationEnd(Animator animation) { 355 mIsSwitchingState = false; 356 mSyncWallpaperOffsetWithScroll = true; 357 mWallpaperOffset.setOverrideHorizontalCatchupConstant(false); 358 mAnimator = null; 359 updateChildrenLayersEnabled(); 360 } 361 }; 362 mShrinkAnimationListener = new AnimatorListenerAdapter() { 363 @Override 364 public void onAnimationStart(Animator animation) { 365 mIsSwitchingState = true; 366 } 367 @Override 368 public void onAnimationEnd(Animator animation) { 369 mIsSwitchingState = false; 370 mWallpaperOffset.setOverrideHorizontalCatchupConstant(false); 371 mAnimator = null; 372 } 373 }; 374 mSnapVelocity = 600; 375 mWallpaperOffset = new WallpaperOffsetInterpolator(); 376 } 377 378 @Override 379 protected int getScrollMode() { 380 return SmoothPagedView.X_LARGE_MODE; 381 } 382 383 private void onAddView(View child) { 384 if (!(child instanceof CellLayout)) { 385 throw new IllegalArgumentException("A Workspace can only have CellLayout children."); 386 } 387 CellLayout cl = ((CellLayout) child); 388 cl.setOnInterceptTouchListener(this); 389 cl.setClickable(true); 390 cl.enableHardwareLayers(); 391 } 392 393 @Override 394 public void addView(View child, int index, LayoutParams params) { 395 onAddView(child); 396 super.addView(child, index, params); 397 } 398 399 @Override 400 public void addView(View child) { 401 onAddView(child); 402 super.addView(child); 403 } 404 405 @Override 406 public void addView(View child, int index) { 407 onAddView(child); 408 super.addView(child, index); 409 } 410 411 @Override 412 public void addView(View child, int width, int height) { 413 onAddView(child); 414 super.addView(child, width, height); 415 } 416 417 @Override 418 public void addView(View child, LayoutParams params) { 419 onAddView(child); 420 super.addView(child, params); 421 } 422 423 /** 424 * @return The open folder on the current screen, or null if there is none 425 */ 426 Folder getOpenFolder() { 427 DragLayer dragLayer = mLauncher.getDragLayer(); 428 int count = dragLayer.getChildCount(); 429 for (int i = 0; i < count; i++) { 430 View child = dragLayer.getChildAt(i); 431 if (child instanceof Folder) { 432 Folder folder = (Folder) child; 433 if (folder.getInfo().opened) 434 return folder; 435 } 436 } 437 return null; 438 } 439 440 boolean isTouchActive() { 441 return mTouchState != TOUCH_STATE_REST; 442 } 443 444 /** 445 * Adds the specified child in the specified screen. The position and dimension of 446 * the child are defined by x, y, spanX and spanY. 447 * 448 * @param child The child to add in one of the workspace's screens. 449 * @param screen The screen in which to add the child. 450 * @param x The X position of the child in the screen's grid. 451 * @param y The Y position of the child in the screen's grid. 452 * @param spanX The number of cells spanned horizontally by the child. 453 * @param spanY The number of cells spanned vertically by the child. 454 */ 455 void addInScreen(View child, long container, int screen, int x, int y, int spanX, int spanY) { 456 addInScreen(child, container, screen, x, y, spanX, spanY, false); 457 } 458 459 /** 460 * Adds the specified child in the specified screen. The position and dimension of 461 * the child are defined by x, y, spanX and spanY. 462 * 463 * @param child The child to add in one of the workspace's screens. 464 * @param screen The screen in which to add the child. 465 * @param x The X position of the child in the screen's grid. 466 * @param y The Y position of the child in the screen's grid. 467 * @param spanX The number of cells spanned horizontally by the child. 468 * @param spanY The number of cells spanned vertically by the child. 469 * @param insert When true, the child is inserted at the beginning of the children list. 470 */ 471 void addInScreen(View child, long container, int screen, int x, int y, int spanX, int spanY, 472 boolean insert) { 473 if (container == LauncherSettings.Favorites.CONTAINER_DESKTOP) { 474 if (screen < 0 || screen >= getChildCount()) { 475 Log.e(TAG, "The screen must be >= 0 and < " + getChildCount() 476 + " (was " + screen + "); skipping child"); 477 return; 478 } 479 } 480 481 final CellLayout layout; 482 if (container == LauncherSettings.Favorites.CONTAINER_HOTSEAT) { 483 layout = mLauncher.getHotseat().getLayout(); 484 child.setOnKeyListener(null); 485 486 if (screen < 0) { 487 screen = mLauncher.getHotseat().getOrderInHotseat(x, y); 488 } else { 489 // Note: We do this to ensure that the hotseat is always laid out in the orientation 490 // of the hotseat in order regardless of which orientation they were added 491 x = mLauncher.getHotseat().getCellXFromOrder(screen); 492 y = mLauncher.getHotseat().getCellYFromOrder(screen); 493 } 494 } else { 495 layout = (CellLayout) getChildAt(screen); 496 child.setOnKeyListener(new BubbleTextViewKeyEventListener()); 497 } 498 499 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) child.getLayoutParams(); 500 if (lp == null) { 501 lp = new CellLayout.LayoutParams(x, y, spanX, spanY); 502 } else { 503 lp.cellX = x; 504 lp.cellY = y; 505 lp.cellHSpan = spanX; 506 lp.cellVSpan = spanY; 507 } 508 509 if (spanX < 0 && spanY < 0) { 510 lp.isLockedToGrid = false; 511 } 512 513 // Get the canonical child id to uniquely represent this view in this screen 514 int childId = LauncherModel.getCellLayoutChildId(container, screen, x, y, spanX, spanY); 515 boolean markCellsAsOccupied = !(child instanceof Folder); 516 if (!layout.addViewToCellLayout(child, insert ? 0 : -1, childId, lp, markCellsAsOccupied)) { 517 // TODO: This branch occurs when the workspace is adding views 518 // outside of the defined grid 519 // maybe we should be deleting these items from the LauncherModel? 520 Log.w(TAG, "Failed to add to item at (" + lp.cellX + "," + lp.cellY + ") to CellLayout"); 521 } 522 523 if (!(child instanceof Folder)) { 524 child.setHapticFeedbackEnabled(false); 525 child.setOnLongClickListener(mLongClickListener); 526 } 527 if (child instanceof DropTarget) { 528 mDragController.addDropTarget((DropTarget) child); 529 } 530 } 531 532 /** 533 * Check if the point (x, y) hits a given page. 534 */ 535 private boolean hitsPage(int index, float x, float y) { 536 final View page = getChildAt(index); 537 if (page != null) { 538 float[] localXY = { x, y }; 539 mapPointFromSelfToChild(page, localXY); 540 return (localXY[0] >= 0 && localXY[0] < page.getWidth() 541 && localXY[1] >= 0 && localXY[1] < page.getHeight()); 542 } 543 return false; 544 } 545 546 @Override 547 protected boolean hitsPreviousPage(float x, float y) { 548 // mNextPage is set to INVALID_PAGE whenever we are stationary. 549 // Calculating "next page" this way ensures that you scroll to whatever page you tap on 550 final int current = (mNextPage == INVALID_PAGE) ? mCurrentPage : mNextPage; 551 return hitsPage(current - 1, x, y); 552 } 553 554 @Override 555 protected boolean hitsNextPage(float x, float y) { 556 // mNextPage is set to INVALID_PAGE whenever we are stationary. 557 // Calculating "next page" this way ensures that you scroll to whatever page you tap on 558 final int current = (mNextPage == INVALID_PAGE) ? mCurrentPage : mNextPage; 559 return hitsPage(current + 1, x, y); 560 } 561 562 /** 563 * Called directly from a CellLayout (not by the framework), after we've been added as a 564 * listener via setOnInterceptTouchEventListener(). This allows us to tell the CellLayout 565 * that it should intercept touch events, which is not something that is normally supported. 566 */ 567 @Override 568 public boolean onTouch(View v, MotionEvent event) { 569 return (isSmall() || mIsSwitchingState); 570 } 571 572 public boolean isSwitchingState() { 573 return mIsSwitchingState; 574 } 575 576 protected void onWindowVisibilityChanged (int visibility) { 577 mLauncher.onWindowVisibilityChanged(visibility); 578 } 579 580 @Override 581 public boolean dispatchUnhandledMove(View focused, int direction) { 582 if (isSmall() || mIsSwitchingState) { 583 // when the home screens are shrunken, shouldn't allow side-scrolling 584 return false; 585 } 586 return super.dispatchUnhandledMove(focused, direction); 587 } 588 589 @Override 590 public boolean onInterceptTouchEvent(MotionEvent ev) { 591 if (ev.getAction() == MotionEvent.ACTION_DOWN) { 592 mXDown = ev.getX(); 593 mYDown = ev.getY(); 594 } 595 596 return super.onInterceptTouchEvent(ev); 597 } 598 599 @Override 600 protected void determineScrollingStart(MotionEvent ev) { 601 if (!isSmall() && !mIsSwitchingState) { 602 float deltaX = Math.abs(ev.getX() - mXDown); 603 float deltaY = Math.abs(ev.getY() - mYDown); 604 605 if (Float.compare(deltaX, 0f) == 0) return; 606 607 float slope = deltaY / deltaX; 608 float theta = (float) Math.atan(slope); 609 610 if (deltaX > mTouchSlop || deltaY > mTouchSlop) { 611 cancelCurrentPageLongPress(); 612 } 613 614 if (theta > MAX_SWIPE_ANGLE) { 615 // Above MAX_SWIPE_ANGLE, we don't want to ever start scrolling the workspace 616 return; 617 } else if (theta > START_DAMPING_TOUCH_SLOP_ANGLE) { 618 // Above START_DAMPING_TOUCH_SLOP_ANGLE and below MAX_SWIPE_ANGLE, we want to 619 // increase the touch slop to make it harder to begin scrolling the workspace. This 620 // results in vertically scrolling widgets to more easily. The higher the angle, the 621 // more we increase touch slop. 622 theta -= START_DAMPING_TOUCH_SLOP_ANGLE; 623 float extraRatio = (float) 624 Math.sqrt((theta / (MAX_SWIPE_ANGLE - START_DAMPING_TOUCH_SLOP_ANGLE))); 625 super.determineScrollingStart(ev, 1 + TOUCH_SLOP_DAMPING_FACTOR * extraRatio); 626 } else { 627 // Below START_DAMPING_TOUCH_SLOP_ANGLE, we don't do anything special 628 super.determineScrollingStart(ev); 629 } 630 } 631 } 632 633 @Override 634 protected boolean isScrollingIndicatorEnabled() { 635 return mState != State.SPRING_LOADED; 636 } 637 638 protected void onPageBeginMoving() { 639 super.onPageBeginMoving(); 640 641 if (isHardwareAccelerated()) { 642 updateChildrenLayersEnabled(); 643 } else { 644 if (mNextPage != INVALID_PAGE) { 645 // we're snapping to a particular screen 646 enableChildrenCache(mCurrentPage, mNextPage); 647 } else { 648 // this is when user is actively dragging a particular screen, they might 649 // swipe it either left or right (but we won't advance by more than one screen) 650 enableChildrenCache(mCurrentPage - 1, mCurrentPage + 1); 651 } 652 } 653 654 // Only show page outlines as we pan if we are on large screen 655 if (LauncherApplication.isScreenLarge()) { 656 showOutlines(); 657 } 658 } 659 660 protected void onPageEndMoving() { 661 super.onPageEndMoving(); 662 663 if (isHardwareAccelerated()) { 664 updateChildrenLayersEnabled(); 665 } else { 666 clearChildrenCache(); 667 } 668 669 // Hide the outlines, as long as we're not dragging 670 if (!mDragController.dragging()) { 671 // Only hide page outlines as we pan if we are on large screen 672 if (LauncherApplication.isScreenLarge()) { 673 hideOutlines(); 674 } 675 } 676 mOverScrollMaxBackgroundAlpha = 0.0f; 677 mOverScrollPageIndex = -1; 678 679 if (mDelayedResizeRunnable != null) { 680 mDelayedResizeRunnable.run(); 681 mDelayedResizeRunnable = null; 682 } 683 } 684 685 @Override 686 protected void notifyPageSwitchListener() { 687 super.notifyPageSwitchListener(); 688 Launcher.setScreen(mCurrentPage); 689 }; 690 691 // As a ratio of screen height, the total distance we want the parallax effect to span 692 // vertically 693 private float wallpaperTravelToScreenHeightRatio(int width, int height) { 694 return 1.1f; 695 } 696 697 // As a ratio of screen height, the total distance we want the parallax effect to span 698 // horizontally 699 private float wallpaperTravelToScreenWidthRatio(int width, int height) { 700 float aspectRatio = width / (float) height; 701 702 // At an aspect ratio of 16/10, the wallpaper parallax effect should span 1.5 * screen width 703 // At an aspect ratio of 10/16, the wallpaper parallax effect should span 1.2 * screen width 704 // We will use these two data points to extrapolate how much the wallpaper parallax effect 705 // to span (ie travel) at any aspect ratio: 706 707 final float ASPECT_RATIO_LANDSCAPE = 16/10f; 708 final float ASPECT_RATIO_PORTRAIT = 10/16f; 709 final float WALLPAPER_WIDTH_TO_SCREEN_RATIO_LANDSCAPE = 1.5f; 710 final float WALLPAPER_WIDTH_TO_SCREEN_RATIO_PORTRAIT = 1.2f; 711 712 // To find out the desired width at different aspect ratios, we use the following two 713 // formulas, where the coefficient on x is the aspect ratio (width/height): 714 // (16/10)x + y = 1.5 715 // (10/16)x + y = 1.2 716 // We solve for x and y and end up with a final formula: 717 final float x = 718 (WALLPAPER_WIDTH_TO_SCREEN_RATIO_LANDSCAPE - WALLPAPER_WIDTH_TO_SCREEN_RATIO_PORTRAIT) / 719 (ASPECT_RATIO_LANDSCAPE - ASPECT_RATIO_PORTRAIT); 720 final float y = WALLPAPER_WIDTH_TO_SCREEN_RATIO_PORTRAIT - x * ASPECT_RATIO_PORTRAIT; 721 return x * aspectRatio + y; 722 } 723 724 // The range of scroll values for Workspace 725 private int getScrollRange() { 726 return getChildOffset(getChildCount() - 1) - getChildOffset(0); 727 } 728 729 protected void setWallpaperDimension() { 730 Display display = mLauncher.getWindowManager().getDefaultDisplay(); 731 DisplayMetrics displayMetrics = new DisplayMetrics(); 732 display.getRealMetrics(displayMetrics); 733 final int maxDim = Math.max(displayMetrics.widthPixels, displayMetrics.heightPixels); 734 final int minDim = Math.min(displayMetrics.widthPixels, displayMetrics.heightPixels); 735 736 // We need to ensure that there is enough extra space in the wallpaper for the intended 737 // parallax effects 738 mWallpaperWidth = (int) (maxDim * wallpaperTravelToScreenWidthRatio(maxDim, minDim)); 739 mWallpaperHeight = (int)(maxDim * wallpaperTravelToScreenHeightRatio(maxDim, minDim)); 740 new Thread("setWallpaperDimension") { 741 public void run() { 742 mWallpaperManager.suggestDesiredDimensions(mWallpaperWidth, mWallpaperHeight); 743 } 744 }.start(); 745 } 746 747 public void setVerticalWallpaperOffset(float offset) { 748 mWallpaperOffset.setFinalY(offset); 749 } 750 public float getVerticalWallpaperOffset() { 751 return mWallpaperOffset.getCurrY(); 752 } 753 public void setHorizontalWallpaperOffset(float offset) { 754 mWallpaperOffset.setFinalX(offset); 755 } 756 public float getHorizontalWallpaperOffset() { 757 return mWallpaperOffset.getCurrX(); 758 } 759 760 private float wallpaperOffsetForCurrentScroll() { 761 Display display = mLauncher.getWindowManager().getDefaultDisplay(); 762 final boolean isStaticWallpaper = (mWallpaperManager.getWallpaperInfo() == null); 763 // The wallpaper travel width is how far, from left to right, the wallpaper will move 764 // at this orientation (for example, in portrait mode we don't move all the way to the 765 // edges of the wallpaper, or otherwise the parallax effect would be too strong) 766 int wallpaperTravelWidth = (int) (display.getWidth() * 767 wallpaperTravelToScreenWidthRatio(display.getWidth(), display.getHeight())); 768 if (!isStaticWallpaper) { 769 wallpaperTravelWidth = mWallpaperWidth; 770 } 771 772 // Set wallpaper offset steps (1 / (number of screens - 1)) 773 // We have 3 vertical offset states (centered, and then top/bottom aligned 774 // for all apps/customize) 775 mWallpaperManager.setWallpaperOffsetSteps(1.0f / (getChildCount() - 1), 1.0f / (3 - 1)); 776 777 int scrollRange = getScrollRange(); 778 float scrollProgressOffset = 0; 779 780 // Account for overscroll: you only see the absolute edge of the wallpaper if 781 // you overscroll as far as you can in landscape mode. Only do this for static wallpapers 782 // because live wallpapers (and probably 3rd party wallpaper providers) rely on the offset 783 // being even intervals from 0 to 1 (eg [0, 0.25, 0.5, 0.75, 1]) 784 if (isStaticWallpaper) { 785 int overscrollOffset = (int) (maxOverScroll() * display.getWidth()); 786 scrollProgressOffset += overscrollOffset / (float) getScrollRange(); 787 scrollRange += 2 * overscrollOffset; 788 } 789 790 float scrollProgress = 791 mScrollX / (float) scrollRange + scrollProgressOffset; 792 float offsetInDips = wallpaperTravelWidth * scrollProgress + 793 (mWallpaperWidth - wallpaperTravelWidth) / 2; // center it 794 float offset = offsetInDips / (float) mWallpaperWidth; 795 return offset; 796 } 797 private void syncWallpaperOffsetWithScroll() { 798 final boolean enableWallpaperEffects = isHardwareAccelerated(); 799 if (enableWallpaperEffects) { 800 mWallpaperOffset.setFinalX(wallpaperOffsetForCurrentScroll()); 801 } 802 } 803 804 public void updateWallpaperOffsetImmediately() { 805 mUpdateWallpaperOffsetImmediately = true; 806 } 807 808 private void updateWallpaperOffsets() { 809 boolean updateNow = false; 810 boolean keepUpdating = true; 811 if (mUpdateWallpaperOffsetImmediately) { 812 updateNow = true; 813 keepUpdating = false; 814 mWallpaperOffset.jumpToFinal(); 815 mUpdateWallpaperOffsetImmediately = false; 816 } else { 817 updateNow = keepUpdating = mWallpaperOffset.computeScrollOffset(); 818 } 819 if (updateNow) { 820 if (mWindowToken != null) { 821 mWallpaperManager.setWallpaperOffsets(mWindowToken, 822 mWallpaperOffset.getCurrX(), mWallpaperOffset.getCurrY()); 823 } 824 } 825 if (keepUpdating) { 826 fastInvalidate(); 827 } 828 } 829 830 class WallpaperOffsetInterpolator { 831 float mFinalHorizontalWallpaperOffset = 0.0f; 832 float mFinalVerticalWallpaperOffset = 0.5f; 833 float mHorizontalWallpaperOffset = 0.0f; 834 float mVerticalWallpaperOffset = 0.5f; 835 long mLastWallpaperOffsetUpdateTime; 836 boolean mIsMovingFast; 837 boolean mOverrideHorizontalCatchupConstant; 838 float mHorizontalCatchupConstant = 0.35f; 839 float mVerticalCatchupConstant = 0.35f; 840 841 public WallpaperOffsetInterpolator() { 842 } 843 844 public void setOverrideHorizontalCatchupConstant(boolean override) { 845 mOverrideHorizontalCatchupConstant = override; 846 } 847 848 public void setHorizontalCatchupConstant(float f) { 849 mHorizontalCatchupConstant = f; 850 } 851 852 public void setVerticalCatchupConstant(float f) { 853 mVerticalCatchupConstant = f; 854 } 855 856 public boolean computeScrollOffset() { 857 if (Float.compare(mHorizontalWallpaperOffset, mFinalHorizontalWallpaperOffset) == 0 && 858 Float.compare(mVerticalWallpaperOffset, mFinalVerticalWallpaperOffset) == 0) { 859 mIsMovingFast = false; 860 return false; 861 } 862 Display display = mLauncher.getWindowManager().getDefaultDisplay(); 863 boolean isLandscape = display.getWidth() > display.getHeight(); 864 865 long currentTime = System.currentTimeMillis(); 866 long timeSinceLastUpdate = currentTime - mLastWallpaperOffsetUpdateTime; 867 timeSinceLastUpdate = Math.min((long) (1000/30f), timeSinceLastUpdate); 868 timeSinceLastUpdate = Math.max(1L, timeSinceLastUpdate); 869 870 float xdiff = Math.abs(mFinalHorizontalWallpaperOffset - mHorizontalWallpaperOffset); 871 if (!mIsMovingFast && xdiff > 0.07) { 872 mIsMovingFast = true; 873 } 874 875 float fractionToCatchUpIn1MsHorizontal; 876 if (mOverrideHorizontalCatchupConstant) { 877 fractionToCatchUpIn1MsHorizontal = mHorizontalCatchupConstant; 878 } else if (mIsMovingFast) { 879 fractionToCatchUpIn1MsHorizontal = isLandscape ? 0.5f : 0.75f; 880 } else { 881 // slow 882 fractionToCatchUpIn1MsHorizontal = isLandscape ? 0.27f : 0.5f; 883 } 884 float fractionToCatchUpIn1MsVertical = mVerticalCatchupConstant; 885 886 fractionToCatchUpIn1MsHorizontal /= 33f; 887 fractionToCatchUpIn1MsVertical /= 33f; 888 889 final float UPDATE_THRESHOLD = 0.00001f; 890 float hOffsetDelta = mFinalHorizontalWallpaperOffset - mHorizontalWallpaperOffset; 891 float vOffsetDelta = mFinalVerticalWallpaperOffset - mVerticalWallpaperOffset; 892 boolean jumpToFinalValue = Math.abs(hOffsetDelta) < UPDATE_THRESHOLD && 893 Math.abs(vOffsetDelta) < UPDATE_THRESHOLD; 894 if (jumpToFinalValue) { 895 mHorizontalWallpaperOffset = mFinalHorizontalWallpaperOffset; 896 mVerticalWallpaperOffset = mFinalVerticalWallpaperOffset; 897 } else { 898 float percentToCatchUpVertical = 899 Math.min(1.0f, timeSinceLastUpdate * fractionToCatchUpIn1MsVertical); 900 float percentToCatchUpHorizontal = 901 Math.min(1.0f, timeSinceLastUpdate * fractionToCatchUpIn1MsHorizontal); 902 mHorizontalWallpaperOffset += percentToCatchUpHorizontal * hOffsetDelta; 903 mVerticalWallpaperOffset += percentToCatchUpVertical * vOffsetDelta; 904 } 905 906 mLastWallpaperOffsetUpdateTime = System.currentTimeMillis(); 907 return true; 908 } 909 910 public float getCurrX() { 911 return mHorizontalWallpaperOffset; 912 } 913 914 public float getFinalX() { 915 return mFinalHorizontalWallpaperOffset; 916 } 917 918 public float getCurrY() { 919 return mVerticalWallpaperOffset; 920 } 921 922 public float getFinalY() { 923 return mFinalVerticalWallpaperOffset; 924 } 925 926 public void setFinalX(float x) { 927 mFinalHorizontalWallpaperOffset = Math.max(0f, Math.min(x, 1.0f)); 928 } 929 930 public void setFinalY(float y) { 931 mFinalVerticalWallpaperOffset = Math.max(0f, Math.min(y, 1.0f)); 932 } 933 934 public void jumpToFinal() { 935 mHorizontalWallpaperOffset = mFinalHorizontalWallpaperOffset; 936 mVerticalWallpaperOffset = mFinalVerticalWallpaperOffset; 937 } 938 } 939 940 @Override 941 public void computeScroll() { 942 super.computeScroll(); 943 if (mSyncWallpaperOffsetWithScroll) { 944 syncWallpaperOffsetWithScroll(); 945 } 946 } 947 948 void showOutlines() { 949 if (!isSmall() && !mIsSwitchingState) { 950 if (mChildrenOutlineFadeOutAnimation != null) mChildrenOutlineFadeOutAnimation.cancel(); 951 if (mChildrenOutlineFadeInAnimation != null) mChildrenOutlineFadeInAnimation.cancel(); 952 mChildrenOutlineFadeInAnimation = ObjectAnimator.ofFloat(this, "childrenOutlineAlpha", 1.0f); 953 mChildrenOutlineFadeInAnimation.setDuration(CHILDREN_OUTLINE_FADE_IN_DURATION); 954 mChildrenOutlineFadeInAnimation.start(); 955 } 956 } 957 958 void hideOutlines() { 959 if (!isSmall() && !mIsSwitchingState) { 960 if (mChildrenOutlineFadeInAnimation != null) mChildrenOutlineFadeInAnimation.cancel(); 961 if (mChildrenOutlineFadeOutAnimation != null) mChildrenOutlineFadeOutAnimation.cancel(); 962 mChildrenOutlineFadeOutAnimation = ObjectAnimator.ofFloat(this, "childrenOutlineAlpha", 0.0f); 963 mChildrenOutlineFadeOutAnimation.setDuration(CHILDREN_OUTLINE_FADE_OUT_DURATION); 964 mChildrenOutlineFadeOutAnimation.setStartDelay(CHILDREN_OUTLINE_FADE_OUT_DELAY); 965 mChildrenOutlineFadeOutAnimation.start(); 966 } 967 } 968 969 public void showOutlinesTemporarily() { 970 if (!mIsPageMoving && !isTouchActive()) { 971 snapToPage(mCurrentPage); 972 } 973 } 974 975 public void setChildrenOutlineAlpha(float alpha) { 976 mChildrenOutlineAlpha = alpha; 977 for (int i = 0; i < getChildCount(); i++) { 978 CellLayout cl = (CellLayout) getChildAt(i); 979 cl.setBackgroundAlpha(alpha); 980 } 981 } 982 983 public float getChildrenOutlineAlpha() { 984 return mChildrenOutlineAlpha; 985 } 986 987 void disableBackground() { 988 mDrawBackground = false; 989 } 990 void enableBackground() { 991 mDrawBackground = true; 992 } 993 994 private void showBackgroundGradientForAllApps() { 995 showBackgroundGradient(); 996 } 997 998 private void showBackgroundGradient() { 999 if (mBackground == null) return; 1000 if (mBackgroundFadeOutAnimation != null) mBackgroundFadeOutAnimation.cancel(); 1001 if (mBackgroundFadeInAnimation != null) mBackgroundFadeInAnimation.cancel(); 1002 mBackgroundFadeInAnimation = ValueAnimator.ofFloat(getBackgroundAlpha(), 1f); 1003 mBackgroundFadeInAnimation.addUpdateListener(new AnimatorUpdateListener() { 1004 public void onAnimationUpdate(ValueAnimator animation) { 1005 setBackgroundAlpha(((Float) animation.getAnimatedValue()).floatValue()); 1006 } 1007 }); 1008 mBackgroundFadeInAnimation.setInterpolator(new DecelerateInterpolator(1.5f)); 1009 mBackgroundFadeInAnimation.setDuration(BACKGROUND_FADE_IN_DURATION); 1010 mBackgroundFadeInAnimation.start(); 1011 } 1012 1013 private void hideBackgroundGradient(float finalAlpha) { 1014 if (mBackground == null) return; 1015 if (mBackgroundFadeInAnimation != null) mBackgroundFadeInAnimation.cancel(); 1016 if (mBackgroundFadeOutAnimation != null) mBackgroundFadeOutAnimation.cancel(); 1017 mBackgroundFadeOutAnimation = ValueAnimator.ofFloat(getBackgroundAlpha(), 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 } 1027 1028 public void setBackgroundAlpha(float alpha) { 1029 if (alpha != mBackgroundAlpha) { 1030 mBackgroundAlpha = alpha; 1031 invalidate(); 1032 } 1033 } 1034 1035 public float getBackgroundAlpha() { 1036 return mBackgroundAlpha; 1037 } 1038 1039 /** 1040 * Due to 3D transformations, if two CellLayouts are theoretically touching each other, 1041 * on the xy plane, when one is rotated along the y-axis, the gap between them is perceived 1042 * as being larger. This method computes what offset the rotated view should be translated 1043 * in order to minimize this perceived gap. 1044 * @param degrees Angle of the view 1045 * @param width Width of the view 1046 * @param height Height of the view 1047 * @return Offset to be used in a View.setTranslationX() call 1048 */ 1049 private float getOffsetXForRotation(float degrees, int width, int height) { 1050 mMatrix.reset(); 1051 mCamera.save(); 1052 mCamera.rotateY(Math.abs(degrees)); 1053 mCamera.getMatrix(mMatrix); 1054 mCamera.restore(); 1055 1056 mMatrix.preTranslate(-width * 0.5f, -height * 0.5f); 1057 mMatrix.postTranslate(width * 0.5f, height * 0.5f); 1058 mTempFloat2[0] = width; 1059 mTempFloat2[1] = height; 1060 mMatrix.mapPoints(mTempFloat2); 1061 return (width - mTempFloat2[0]) * (degrees > 0.0f ? 1.0f : -1.0f); 1062 } 1063 1064 float backgroundAlphaInterpolator(float r) { 1065 float pivotA = 0.1f; 1066 float pivotB = 0.4f; 1067 if (r < pivotA) { 1068 return 0; 1069 } else if (r > pivotB) { 1070 return 1.0f; 1071 } else { 1072 return (r - pivotA)/(pivotB - pivotA); 1073 } 1074 } 1075 1076 float overScrollBackgroundAlphaInterpolator(float r) { 1077 float threshold = 0.08f; 1078 1079 if (r > mOverScrollMaxBackgroundAlpha) { 1080 mOverScrollMaxBackgroundAlpha = r; 1081 } else if (r < mOverScrollMaxBackgroundAlpha) { 1082 r = mOverScrollMaxBackgroundAlpha; 1083 } 1084 1085 return Math.min(r / threshold, 1.0f); 1086 } 1087 1088 @Override 1089 protected void screenScrolled(int screenCenter) { 1090 super.screenScrolled(screenCenter); 1091 1092 // If the screen is not xlarge, then don't rotate the CellLayouts 1093 // NOTE: If we don't update the side pages alpha, then we should not hide the side pages. 1094 // see unshrink(). 1095 if (!LauncherApplication.isScreenLarge()) return; 1096 1097 final int halfScreenSize = getMeasuredWidth() / 2; 1098 1099 for (int i = 0; i < getChildCount(); i++) { 1100 CellLayout cl = (CellLayout) getChildAt(i); 1101 if (cl != null) { 1102 int totalDistance = getScaledMeasuredWidth(cl) + mPageSpacing; 1103 int delta = screenCenter - (getChildOffset(i) - 1104 getRelativeChildOffset(i) + halfScreenSize); 1105 1106 float scrollProgress = delta / (totalDistance * 1.0f); 1107 scrollProgress = Math.min(scrollProgress, 1.0f); 1108 scrollProgress = Math.max(scrollProgress, -1.0f); 1109 1110 // If the current page (i) is being overscrolled, we use a different 1111 // set of rules for setting the background alpha multiplier. 1112 if ((mScrollX < 0 && i == 0) || (mScrollX > mMaxScrollX && 1113 i == getChildCount() -1 )) { 1114 cl.setBackgroundAlphaMultiplier( 1115 overScrollBackgroundAlphaInterpolator(Math.abs(scrollProgress))); 1116 mOverScrollPageIndex = i; 1117 } else if (mOverScrollPageIndex != i) { 1118 cl.setBackgroundAlphaMultiplier( 1119 backgroundAlphaInterpolator(Math.abs(scrollProgress))); 1120 } 1121 1122 float rotation = WORKSPACE_ROTATION * scrollProgress; 1123 float translationX = getOffsetXForRotation(rotation, cl.getWidth(), cl.getHeight()); 1124 cl.setTranslationX(translationX); 1125 1126 cl.setRotationY(rotation); 1127 } 1128 } 1129 } 1130 1131 protected void onAttachedToWindow() { 1132 super.onAttachedToWindow(); 1133 mWindowToken = getWindowToken(); 1134 computeScroll(); 1135 mDragController.setWindowToken(mWindowToken); 1136 } 1137 1138 protected void onDetachedFromWindow() { 1139 mWindowToken = null; 1140 } 1141 1142 @Override 1143 protected void onLayout(boolean changed, int left, int top, int right, int bottom) { 1144 if (mFirstLayout && mCurrentPage >= 0 && mCurrentPage < getChildCount()) { 1145 mUpdateWallpaperOffsetImmediately = true; 1146 } 1147 super.onLayout(changed, left, top, right, bottom); 1148 1149 // if shrinkToBottom() is called on initialization, it has to be deferred 1150 // until after the first call to onLayout so that it has the correct width 1151 if (mSwitchStateAfterFirstLayout) { 1152 mSwitchStateAfterFirstLayout = false; 1153 // shrink can trigger a synchronous onLayout call, so we 1154 // post this to avoid a stack overflow / tangled onLayout calls 1155 post(new Runnable() { 1156 public void run() { 1157 shrink(mStateAfterFirstLayout, false); 1158 } 1159 }); 1160 } 1161 } 1162 1163 @Override 1164 protected void onDraw(Canvas canvas) { 1165 updateWallpaperOffsets(); 1166 1167 // Draw the background gradient if necessary 1168 if (mBackground != null && mBackgroundAlpha > 0.0f && mDrawBackground) { 1169 int alpha = (int) (mBackgroundAlpha * 255); 1170 mBackground.setAlpha(alpha); 1171 mBackground.setBounds(mScrollX, 0, mScrollX + getMeasuredWidth(), 1172 getMeasuredHeight()); 1173 mBackground.draw(canvas); 1174 } 1175 1176 super.onDraw(canvas); 1177 } 1178 1179 @Override 1180 protected void dispatchDraw(Canvas canvas) { 1181 super.dispatchDraw(canvas); 1182 1183 if (mInScrollArea && !LauncherApplication.isScreenLarge()) { 1184 final int width = getWidth(); 1185 final int height = getHeight(); 1186 final int pageHeight = getChildAt(0).getHeight(); 1187 1188 // This determines the height of the glowing edge: 90% of the page height 1189 final int padding = (int) ((height - pageHeight) * 0.5f + pageHeight * 0.1f); 1190 1191 final CellLayout leftPage = (CellLayout) getChildAt(mCurrentPage - 1); 1192 final CellLayout rightPage = (CellLayout) getChildAt(mCurrentPage + 1); 1193 1194 if (leftPage != null && leftPage.getIsDragOverlapping()) { 1195 final Drawable d = getResources().getDrawable(R.drawable.page_hover_left_holo); 1196 d.setBounds(mScrollX, padding, mScrollX + d.getIntrinsicWidth(), height - padding); 1197 d.draw(canvas); 1198 } else if (rightPage != null && rightPage.getIsDragOverlapping()) { 1199 final Drawable d = getResources().getDrawable(R.drawable.page_hover_right_holo); 1200 d.setBounds(mScrollX + width - d.getIntrinsicWidth(), padding, mScrollX + width, height - padding); 1201 d.draw(canvas); 1202 } 1203 } 1204 } 1205 1206 @Override 1207 protected boolean onRequestFocusInDescendants(int direction, Rect previouslyFocusedRect) { 1208 if (!mLauncher.isAllAppsVisible()) { 1209 final Folder openFolder = getOpenFolder(); 1210 if (openFolder != null) { 1211 return openFolder.requestFocus(direction, previouslyFocusedRect); 1212 } else { 1213 return super.onRequestFocusInDescendants(direction, previouslyFocusedRect); 1214 } 1215 } 1216 return false; 1217 } 1218 1219 @Override 1220 public int getDescendantFocusability() { 1221 if (isSmall()) { 1222 return ViewGroup.FOCUS_BLOCK_DESCENDANTS; 1223 } 1224 return super.getDescendantFocusability(); 1225 } 1226 1227 @Override 1228 public void addFocusables(ArrayList<View> views, int direction, int focusableMode) { 1229 if (!mLauncher.isAllAppsVisible()) { 1230 final Folder openFolder = getOpenFolder(); 1231 if (openFolder != null) { 1232 openFolder.addFocusables(views, direction); 1233 } else { 1234 super.addFocusables(views, direction, focusableMode); 1235 } 1236 } 1237 } 1238 1239 public boolean isSmall() { 1240 return mState == State.SMALL || mState == State.SPRING_LOADED; 1241 } 1242 1243 void enableChildrenCache(int fromPage, int toPage) { 1244 if (fromPage > toPage) { 1245 final int temp = fromPage; 1246 fromPage = toPage; 1247 toPage = temp; 1248 } 1249 1250 final int screenCount = getChildCount(); 1251 1252 fromPage = Math.max(fromPage, 0); 1253 toPage = Math.min(toPage, screenCount - 1); 1254 1255 for (int i = fromPage; i <= toPage; i++) { 1256 final CellLayout layout = (CellLayout) getChildAt(i); 1257 layout.setChildrenDrawnWithCacheEnabled(true); 1258 layout.setChildrenDrawingCacheEnabled(true); 1259 } 1260 } 1261 1262 void clearChildrenCache() { 1263 final int screenCount = getChildCount(); 1264 for (int i = 0; i < screenCount; i++) { 1265 final CellLayout layout = (CellLayout) getChildAt(i); 1266 layout.setChildrenDrawnWithCacheEnabled(false); 1267 } 1268 } 1269 1270 private boolean childLayersEnabled() { 1271 boolean isSmallOrSpringloaded = 1272 isSmall() || mIsSwitchingState || mState == State.SPRING_LOADED; 1273 return isSmallOrSpringloaded || isPageMoving() || mIsDragOccuring; 1274 } 1275 1276 private void updateChildrenLayersEnabled() { 1277 boolean small = 1278 isSmall() || mIsSwitchingState || mState == State.SPRING_LOADED; 1279 boolean dragging = mAnimatingViewIntoPlace || mIsDragOccuring; 1280 boolean enableChildrenLayers = small || dragging || isPageMoving(); 1281 1282 if (enableChildrenLayers != mChildrenLayersEnabled) { 1283 mChildrenLayersEnabled = enableChildrenLayers; 1284 for (int i = 0; i < getPageCount(); i++) { 1285 ((ViewGroup)getChildAt(i)).setChildrenLayersEnabled(enableChildrenLayers); 1286 } 1287 } 1288 } 1289 1290 @Override 1291 protected void onWallpaperTap(MotionEvent ev) { 1292 final int[] position = mTempCell; 1293 getLocationOnScreen(position); 1294 1295 int pointerIndex = ev.getActionIndex(); 1296 position[0] += (int) ev.getX(pointerIndex); 1297 position[1] += (int) ev.getY(pointerIndex); 1298 1299 mWallpaperManager.sendWallpaperCommand(getWindowToken(), 1300 ev.getAction() == MotionEvent.ACTION_UP 1301 ? WallpaperManager.COMMAND_TAP : WallpaperManager.COMMAND_SECONDARY_TAP, 1302 position[0], position[1], 0, null); 1303 } 1304 1305 private float getYScaleForScreen(int screen) { 1306 int x = Math.abs(screen - 2); 1307 1308 // TODO: This should be generalized for use with arbitrary rotation angles. 1309 switch(x) { 1310 case 0: return EXTRA_SCALE_FACTOR_0; 1311 case 1: return EXTRA_SCALE_FACTOR_1; 1312 case 2: return EXTRA_SCALE_FACTOR_2; 1313 } 1314 return 1.0f; 1315 } 1316 1317 public void shrink(State shrinkState) { 1318 shrink(shrinkState, true); 1319 } 1320 1321 // we use this to shrink the workspace for the all apps view and the customize view 1322 public void shrink(State shrinkState, boolean animated) { 1323 if (mFirstLayout) { 1324 // (mFirstLayout == "first layout has not happened yet") 1325 // if we get a call to shrink() as part of our initialization (for example, if 1326 // Launcher is started in All Apps mode) then we need to wait for a layout call 1327 // to get our width so we can layout the mini-screen views correctly 1328 mSwitchStateAfterFirstLayout = true; 1329 mStateAfterFirstLayout = shrinkState; 1330 return; 1331 } 1332 1333 // Stop any scrolling, move to the current page right away 1334 setCurrentPage((mNextPage != INVALID_PAGE) ? mNextPage : mCurrentPage); 1335 1336 CellLayout currentPage = (CellLayout) getChildAt(mCurrentPage); 1337 if (currentPage == null) { 1338 Log.w(TAG, "currentPage is NULL! mCurrentPage " + mCurrentPage 1339 + " mNextPage " + mNextPage); 1340 return; 1341 } 1342 if (currentPage.getBackgroundAlphaMultiplier() < 1.0f) { 1343 currentPage.setBackgroundAlpha(0.0f); 1344 } 1345 currentPage.setBackgroundAlphaMultiplier(1.0f); 1346 1347 mState = shrinkState; 1348 updateChildrenLayersEnabled(); 1349 1350 // we intercept and reject all touch events when we're small, so be sure to reset the state 1351 mTouchState = TOUCH_STATE_REST; 1352 mActivePointerId = INVALID_POINTER; 1353 1354 final Resources res = getResources(); 1355 final int screenWidth = getWidth(); 1356 final int screenHeight = getHeight(); 1357 1358 // How much the workspace shrinks when we enter all apps or customization mode 1359 final float shrinkFactor = res.getInteger(R.integer.config_workspaceShrinkPercent) / 100.0f; 1360 1361 // Making the assumption that all pages have the same width as the 0th 1362 final int pageWidth = getChildAt(0).getMeasuredWidth(); 1363 final int pageHeight = getChildAt(0).getMeasuredHeight(); 1364 1365 final int scaledPageWidth = (int) (shrinkFactor * pageWidth); 1366 final int scaledPageHeight = (int) (shrinkFactor * pageHeight); 1367 final float extraScaledSpacing = res.getDimension(R.dimen.smallScreenExtraSpacing); 1368 1369 final int screenCount = getChildCount(); 1370 float totalWidth = screenCount * scaledPageWidth + (screenCount - 1) * extraScaledSpacing; 1371 1372 boolean isPortrait = getMeasuredHeight() > getMeasuredWidth(); 1373 float y = (isPortrait ? 1374 getResources().getDimension(R.dimen.allAppsSmallScreenVerticalMarginPortrait) : 1375 getResources().getDimension(R.dimen.allAppsSmallScreenVerticalMarginLandscape)); 1376 float finalAlpha = 1.0f; 1377 float extraShrinkFactor = 1.0f; 1378 1379 // We shrink and disappear to nothing 1380 y = screenHeight - y - scaledPageHeight; 1381 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 final int childCount = getChildCount(); 1406 initAnimationArrays(); 1407 1408 for (int i = 0; i < screenCount; i++) { 1409 final CellLayout cl = (CellLayout) getChildAt(i); 1410 1411 float rotation = (-i + 2) * WORKSPACE_ROTATION; 1412 float rotationScaleX = (float) (1.0f / Math.cos(Math.PI * rotation / 180.0f)); 1413 float rotationScaleY = getYScaleForScreen(i); 1414 1415 mOldAlphas[i] = cl.getAlpha(); 1416 mNewAlphas[i] = finalAlpha; 1417 if (animated && (mOldAlphas[i] != 0f || mNewAlphas[i] != 0f)) { 1418 // if the CellLayout will be visible during the animation, force building its 1419 // hardware layer immediately so we don't see a blip later in the animation 1420 cl.buildChildrenLayer(); 1421 } 1422 if (animated) { 1423 mOldTranslationXs[i] = cl.getX(); 1424 mOldTranslationYs[i] = cl.getY(); 1425 mOldScaleXs[i] = cl.getScaleX(); 1426 mOldScaleYs[i] = cl.getScaleY(); 1427 mOldBackgroundAlphas[i] = cl.getBackgroundAlpha(); 1428 mOldRotationYs[i] = cl.getRotationY(); 1429 mNewTranslationXs[i] = x; 1430 mNewTranslationYs[i] = y; 1431 mNewScaleXs[i] = shrinkFactor * rotationScaleX * extraShrinkFactor; 1432 mNewScaleYs[i] = shrinkFactor * rotationScaleY * extraShrinkFactor; 1433 mNewBackgroundAlphas[i] = finalAlpha; 1434 mNewRotationYs[i] = rotation; 1435 } else { 1436 cl.setX((int)x); 1437 cl.setY((int)y); 1438 cl.setScaleX(shrinkFactor * rotationScaleX * extraShrinkFactor); 1439 cl.setScaleY(shrinkFactor * rotationScaleY * extraShrinkFactor); 1440 cl.setBackgroundAlpha(finalAlpha); 1441 cl.setAlpha(finalAlpha); 1442 cl.setRotationY(rotation); 1443 mShrinkAnimationListener.onAnimationEnd(null); 1444 } 1445 // increment newX for the next screen 1446 x += scaledPageWidth + extraScaledSpacing; 1447 } 1448 1449 float wallpaperOffset = 0.5f; 1450 Display display = mLauncher.getWindowManager().getDefaultDisplay(); 1451 int wallpaperTravelHeight = (int) (display.getHeight() * 1452 wallpaperTravelToScreenHeightRatio(display.getWidth(), display.getHeight())); 1453 float offsetFromCenter = (wallpaperTravelHeight / (float) mWallpaperHeight) / 2f; 1454 boolean isLandscape = display.getWidth() > display.getHeight(); 1455 1456 // on phones, don't scroll the wallpaper horizontally or vertically when switching 1457 // to/from all apps 1458 final boolean enableWallpaperEffects = 1459 isHardwareAccelerated() && LauncherApplication.isScreenLarge(); 1460 if (enableWallpaperEffects) { 1461 switch (shrinkState) { 1462 // animating in 1463 case SPRING_LOADED: 1464 wallpaperOffset = 0.5f; 1465 mWallpaperOffset.setVerticalCatchupConstant(isLandscape ? 0.34f : 0.32f); 1466 break; 1467 case SMALL: 1468 // allapps 1469 wallpaperOffset = 0.5f - offsetFromCenter; 1470 mWallpaperOffset.setVerticalCatchupConstant(isLandscape ? 0.34f : 0.32f); 1471 break; 1472 } 1473 } 1474 1475 setLayoutScale(1.0f); 1476 if (animated) { 1477 if (enableWallpaperEffects) { 1478 mWallpaperOffset.setHorizontalCatchupConstant(0.46f); 1479 mWallpaperOffset.setOverrideHorizontalCatchupConstant(true); 1480 } 1481 1482 mSyncWallpaperOffsetWithScroll = false; 1483 1484 ValueAnimator animWithInterpolator = 1485 ValueAnimator.ofFloat(0f, 1f).setDuration(duration); 1486 animWithInterpolator.setInterpolator(mZoomOutInterpolator); 1487 1488 final float oldHorizontalWallpaperOffset = getHorizontalWallpaperOffset(); 1489 final float oldVerticalWallpaperOffset = getVerticalWallpaperOffset(); 1490 final float newHorizontalWallpaperOffset = 0.5f; 1491 final float newVerticalWallpaperOffset = wallpaperOffset; 1492 animWithInterpolator.addUpdateListener(new LauncherAnimatorUpdateListener() { 1493 public void onAnimationUpdate(float a, float b) { 1494 if (!mShrinkAnimationEnabled) return; 1495 mTransitionProgress = b; 1496 if (b == 0f) { 1497 // an optimization, and required for correct behavior. 1498 return; 1499 } 1500 invalidate(); 1501 if (enableWallpaperEffects) { 1502 setHorizontalWallpaperOffset( 1503 a * oldHorizontalWallpaperOffset + b * newHorizontalWallpaperOffset); 1504 setVerticalWallpaperOffset( 1505 a * oldVerticalWallpaperOffset + b * newVerticalWallpaperOffset); 1506 } 1507 for (int i = 0; i < screenCount; i++) { 1508 final CellLayout cl = (CellLayout) getChildAt(i); 1509 cl.fastInvalidate(); 1510 cl.setFastX(a * mOldTranslationXs[i] + b * mNewTranslationXs[i]); 1511 cl.setFastY(a * mOldTranslationYs[i] + b * mNewTranslationYs[i]); 1512 cl.setFastScaleX(a * mOldScaleXs[i] + b * mNewScaleXs[i]); 1513 cl.setFastScaleY(a * mOldScaleYs[i] + b * mNewScaleYs[i]); 1514 cl.setFastBackgroundAlpha( 1515 a * mOldBackgroundAlphas[i] + b * mNewBackgroundAlphas[i]); 1516 cl.setFastAlpha(a * mOldAlphas[i] + b * mNewAlphas[i]); 1517 cl.setFastRotationY(a * mOldRotationYs[i] + b * mNewRotationYs[i]); 1518 } 1519 } 1520 }); 1521 mAnimator.playTogether(animWithInterpolator); 1522 mAnimator.addListener(mShrinkAnimationListener); 1523 mAnimator.start(); 1524 } else if (enableWallpaperEffects) { 1525 setVerticalWallpaperOffset(wallpaperOffset); 1526 setHorizontalWallpaperOffset(0.5f); 1527 updateWallpaperOffsetImmediately(); 1528 } 1529 setChildrenDrawnWithCacheEnabled(true); 1530 1531 showBackgroundGradientForAllApps(); 1532 } 1533 1534 /* 1535 * This interpolator emulates the rate at which the perceived scale of an object changes 1536 * as its distance from a camera increases. When this interpolator is applied to a scale 1537 * animation on a view, it evokes the sense that the object is shrinking due to moving away 1538 * from the camera. 1539 */ 1540 static class ZInterpolator implements TimeInterpolator { 1541 private float focalLength; 1542 1543 public ZInterpolator(float foc) { 1544 focalLength = foc; 1545 } 1546 1547 public float getInterpolation(float input) { 1548 return (1.0f - focalLength / (focalLength + input)) / 1549 (1.0f - focalLength / (focalLength + 1.0f)); 1550 } 1551 } 1552 1553 /* 1554 * The exact reverse of ZInterpolator. 1555 */ 1556 static class InverseZInterpolator implements TimeInterpolator { 1557 private ZInterpolator zInterpolator; 1558 public InverseZInterpolator(float foc) { 1559 zInterpolator = new ZInterpolator(foc); 1560 } 1561 public float getInterpolation(float input) { 1562 return 1 - zInterpolator.getInterpolation(1 - input); 1563 } 1564 } 1565 1566 /* 1567 * ZInterpolator compounded with an ease-out. 1568 */ 1569 static class ZoomOutInterpolator implements TimeInterpolator { 1570 private final ZInterpolator zInterpolator = new ZInterpolator(0.2f); 1571 private final DecelerateInterpolator decelerate = new DecelerateInterpolator(1.8f); 1572 1573 public float getInterpolation(float input) { 1574 return decelerate.getInterpolation(zInterpolator.getInterpolation(input)); 1575 } 1576 } 1577 1578 /* 1579 * InvereZInterpolator compounded with an ease-out. 1580 */ 1581 static class ZoomInInterpolator implements TimeInterpolator { 1582 private final InverseZInterpolator inverseZInterpolator = new InverseZInterpolator(0.35f); 1583 private final DecelerateInterpolator decelerate = new DecelerateInterpolator(3.0f); 1584 1585 public float getInterpolation(float input) { 1586 return decelerate.getInterpolation(inverseZInterpolator.getInterpolation(input)); 1587 } 1588 } 1589 1590 private final ZoomOutInterpolator mZoomOutInterpolator = new ZoomOutInterpolator(); 1591 private final ZoomInInterpolator mZoomInInterpolator = new ZoomInInterpolator(); 1592 1593 /* 1594 * 1595 * We call these methods (onDragStartedWithItemSpans/onDragStartedWithSize) whenever we 1596 * start a drag in Launcher, regardless of whether the drag has ever entered the Workspace 1597 * 1598 * These methods mark the appropriate pages as accepting drops (which alters their visual 1599 * appearance). 1600 * 1601 */ 1602 public void onDragStartedWithItem(View v) { 1603 final Canvas canvas = new Canvas(); 1604 1605 // We need to add extra padding to the bitmap to make room for the glow effect 1606 final int bitmapPadding = HolographicOutlineHelper.MAX_OUTER_BLUR_RADIUS; 1607 1608 // The outline is used to visualize where the item will land if dropped 1609 mDragOutline = createDragOutline(v, canvas, bitmapPadding); 1610 } 1611 1612 public void onDragStartedWithItemSpans(int spanX, int spanY, Bitmap b) { 1613 final Canvas canvas = new Canvas(); 1614 1615 // We need to add extra padding to the bitmap to make room for the glow effect 1616 final int bitmapPadding = HolographicOutlineHelper.MAX_OUTER_BLUR_RADIUS; 1617 1618 CellLayout cl = (CellLayout) getChildAt(0); 1619 1620 int[] size = cl.cellSpansToSize(spanX, spanY); 1621 1622 // The outline is used to visualize where the item will land if dropped 1623 mDragOutline = createDragOutline(b, canvas, bitmapPadding, size[0], size[1]); 1624 } 1625 1626 // we call this method whenever a drag and drop in Launcher finishes, even if Workspace was 1627 // never dragged over 1628 public void onDragStopped(boolean success) { 1629 // In the success case, DragController has already called onDragExit() 1630 if (!success) { 1631 doDragExit(null); 1632 } 1633 } 1634 1635 // We call this when we trigger an unshrink by clicking on the CellLayout cl 1636 public void unshrink(CellLayout clThatWasClicked) { 1637 unshrink(clThatWasClicked, false); 1638 } 1639 1640 public void unshrink(CellLayout clThatWasClicked, boolean springLoaded) { 1641 int newCurrentPage = indexOfChild(clThatWasClicked); 1642 if (isSmall()) { 1643 if (springLoaded) { 1644 setLayoutScale(mSpringLoadedShrinkFactor); 1645 } 1646 scrollToNewPageWithoutMovingPages(newCurrentPage); 1647 unshrink(true, springLoaded); 1648 } 1649 } 1650 1651 1652 public void enterSpringLoadedDragMode(CellLayout clThatWasClicked) { 1653 unshrink(clThatWasClicked, true); 1654 } 1655 1656 public void exitSpringLoadedDragMode(State shrinkState) { 1657 shrink(shrinkState); 1658 } 1659 1660 public void exitWidgetResizeMode() { 1661 DragLayer dragLayer = mLauncher.getDragLayer(); 1662 dragLayer.clearAllResizeFrames(); 1663 } 1664 1665 void unshrink(boolean animated) { 1666 unshrink(animated, false); 1667 } 1668 1669 private void initAnimationArrays() { 1670 final int childCount = getChildCount(); 1671 if (mOldTranslationXs != null) return; 1672 mOldTranslationXs = new float[childCount]; 1673 mOldTranslationYs = new float[childCount]; 1674 mOldScaleXs = new float[childCount]; 1675 mOldScaleYs = new float[childCount]; 1676 mOldBackgroundAlphas = new float[childCount]; 1677 mOldBackgroundAlphaMultipliers = new float[childCount]; 1678 mOldAlphas = new float[childCount]; 1679 mOldRotationYs = new float[childCount]; 1680 mNewTranslationXs = new float[childCount]; 1681 mNewTranslationYs = new float[childCount]; 1682 mNewScaleXs = new float[childCount]; 1683 mNewScaleYs = new float[childCount]; 1684 mNewBackgroundAlphas = new float[childCount]; 1685 mNewBackgroundAlphaMultipliers = new float[childCount]; 1686 mNewAlphas = new float[childCount]; 1687 mNewRotationYs = new float[childCount]; 1688 } 1689 1690 void unshrink(boolean animated, boolean springLoaded) { 1691 if (isSmall()) { 1692 float finalScaleFactor = 1.0f; 1693 float finalBackgroundAlpha = 0.0f; 1694 if (springLoaded) { 1695 finalScaleFactor = mSpringLoadedShrinkFactor; 1696 finalBackgroundAlpha = 1.0f; 1697 mState = State.SPRING_LOADED; 1698 } else { 1699 mState = State.NORMAL; 1700 } 1701 if (mAnimator != null) { 1702 mAnimator.cancel(); 1703 } 1704 1705 mAnimator = new AnimatorSet(); 1706 1707 // Workaround the AnimatorSet cancel bug... 1708 mShrinkAnimationEnabled = false; 1709 mUnshrinkAnimationEnabled = true; 1710 1711 final int screenCount = getChildCount(); 1712 initAnimationArrays(); 1713 1714 final int duration = getResources().getInteger(R.integer.config_workspaceUnshrinkTime); 1715 for (int i = 0; i < screenCount; i++) { 1716 final CellLayout cl = (CellLayout)getChildAt(i); 1717 float finalAlphaValue = 0f; 1718 float rotation = 0f; 1719 if (LauncherApplication.isScreenLarge()) { 1720 finalAlphaValue = (i == mCurrentPage) ? 1.0f : 0.0f; 1721 1722 if (i < mCurrentPage) { 1723 rotation = WORKSPACE_ROTATION; 1724 } else if (i > mCurrentPage) { 1725 rotation = -WORKSPACE_ROTATION; 1726 } 1727 } else { 1728 // Don't hide the side panes on the phone if we don't also update the side pages 1729 // alpha. See screenScrolled(). 1730 finalAlphaValue = 1f; 1731 } 1732 float finalAlphaMultiplierValue = 1f; 1733 1734 float translation = 0f; 1735 1736 // If the screen is not xlarge, then don't rotate the CellLayouts 1737 // NOTE: If we don't update the side pages alpha, then we should not hide the side 1738 // pages. see unshrink(). 1739 if (LauncherApplication.isScreenLarge()) { 1740 translation = getOffsetXForRotation(rotation, cl.getWidth(), cl.getHeight()); 1741 } 1742 1743 mOldAlphas[i] = cl.getAlpha(); 1744 mNewAlphas[i] = finalAlphaValue; 1745 if (animated) { 1746 mOldTranslationXs[i] = cl.getTranslationX(); 1747 mOldTranslationYs[i] = cl.getTranslationY(); 1748 mOldScaleXs[i] = cl.getScaleX(); 1749 mOldScaleYs[i] = cl.getScaleY(); 1750 mOldBackgroundAlphas[i] = cl.getBackgroundAlpha(); 1751 mOldBackgroundAlphaMultipliers[i] = cl.getBackgroundAlphaMultiplier(); 1752 mOldRotationYs[i] = cl.getRotationY(); 1753 1754 mNewTranslationXs[i] = translation; 1755 mNewTranslationYs[i] = 0f; 1756 mNewScaleXs[i] = finalScaleFactor; 1757 mNewScaleYs[i] = finalScaleFactor; 1758 mNewBackgroundAlphas[i] = finalBackgroundAlpha; 1759 mNewBackgroundAlphaMultipliers[i] = finalAlphaMultiplierValue; 1760 mNewRotationYs[i] = rotation; 1761 } else { 1762 cl.setTranslationX(translation); 1763 cl.setTranslationY(0.0f); 1764 cl.setScaleX(finalScaleFactor); 1765 cl.setScaleY(finalScaleFactor); 1766 cl.setBackgroundAlpha(0.0f); 1767 cl.setBackgroundAlphaMultiplier(finalAlphaMultiplierValue); 1768 cl.setAlpha(finalAlphaValue); 1769 cl.setRotationY(rotation); 1770 mUnshrinkAnimationListener.onAnimationEnd(null); 1771 } 1772 } 1773 Display display = mLauncher.getWindowManager().getDefaultDisplay(); 1774 boolean isLandscape = display.getWidth() > display.getHeight(); 1775 // on phones, don't scroll the wallpaper horizontally or vertically when switching 1776 // to/from all apps 1777 final boolean enableWallpaperEffects = 1778 isHardwareAccelerated() && LauncherApplication.isScreenLarge(); 1779 if (enableWallpaperEffects) { 1780 switch (mState) { 1781 // animating out 1782 case SPRING_LOADED: 1783 if (animated) { 1784 mWallpaperOffset.setHorizontalCatchupConstant(isLandscape ? 0.49f : 0.46f); 1785 mWallpaperOffset.setVerticalCatchupConstant(isLandscape ? 0.49f : 0.46f); 1786 mWallpaperOffset.setOverrideHorizontalCatchupConstant(true); 1787 } 1788 break; 1789 case SMALL: 1790 // all apps 1791 if (animated) { 1792 mWallpaperOffset.setHorizontalCatchupConstant(isLandscape ? 0.65f : 0.65f); 1793 mWallpaperOffset.setVerticalCatchupConstant(isLandscape ? 0.65f : 0.65f); 1794 mWallpaperOffset.setOverrideHorizontalCatchupConstant(true); 1795 } 1796 break; 1797 } 1798 } 1799 if (animated) { 1800 ValueAnimator animWithInterpolator = 1801 ValueAnimator.ofFloat(0f, 1f).setDuration(duration); 1802 animWithInterpolator.setInterpolator(mZoomInInterpolator); 1803 1804 final float oldHorizontalWallpaperOffset = enableWallpaperEffects ? 1805 getHorizontalWallpaperOffset() : 0; 1806 final float oldVerticalWallpaperOffset = enableWallpaperEffects ? 1807 getVerticalWallpaperOffset() : 0; 1808 final float newHorizontalWallpaperOffset = enableWallpaperEffects ? 1809 wallpaperOffsetForCurrentScroll() : 0; 1810 final float newVerticalWallpaperOffset = enableWallpaperEffects ? 0.5f : 0; 1811 animWithInterpolator.addUpdateListener(new LauncherAnimatorUpdateListener() { 1812 public void onAnimationUpdate(float a, float b) { 1813 if (!mUnshrinkAnimationEnabled) return; 1814 mTransitionProgress = b; 1815 if (b == 0f) { 1816 // an optimization, but not required 1817 return; 1818 } 1819 invalidate(); 1820 if (enableWallpaperEffects) { 1821 setHorizontalWallpaperOffset(a * oldHorizontalWallpaperOffset 1822 + b * newHorizontalWallpaperOffset); 1823 setVerticalWallpaperOffset(a * oldVerticalWallpaperOffset 1824 + b * newVerticalWallpaperOffset); 1825 } 1826 for (int i = 0; i < screenCount; i++) { 1827 final CellLayout cl = (CellLayout) getChildAt(i); 1828 cl.fastInvalidate(); 1829 cl.setFastTranslationX( 1830 a * mOldTranslationXs[i] + b * mNewTranslationXs[i]); 1831 cl.setFastTranslationY( 1832 a * mOldTranslationYs[i] + b * mNewTranslationYs[i]); 1833 cl.setFastScaleX(a * mOldScaleXs[i] + b * mNewScaleXs[i]); 1834 cl.setFastScaleY(a * mOldScaleYs[i] + b * mNewScaleYs[i]); 1835 cl.setFastBackgroundAlpha( 1836 a * mOldBackgroundAlphas[i] + b * mNewBackgroundAlphas[i]); 1837 cl.setBackgroundAlphaMultiplier(a * mOldBackgroundAlphaMultipliers[i] + 1838 b * mNewBackgroundAlphaMultipliers[i]); 1839 cl.setFastAlpha(a * mOldAlphas[i] + b * mNewAlphas[i]); 1840 } 1841 } 1842 }); 1843 1844 ValueAnimator rotationAnim = 1845 ValueAnimator.ofFloat(0f, 1f).setDuration(duration); 1846 rotationAnim.setInterpolator(new DecelerateInterpolator(2.0f)); 1847 rotationAnim.addUpdateListener(new LauncherAnimatorUpdateListener() { 1848 public void onAnimationUpdate(float a, float b) { 1849 if (!mUnshrinkAnimationEnabled) return; 1850 // don't invalidate workspace because we did it above 1851 if (b == 0f) { 1852 // an optimization, but not required 1853 return; 1854 } 1855 for (int i = 0; i < screenCount; i++) { 1856 final CellLayout cl = (CellLayout) getChildAt(i); 1857 cl.setFastRotationY(a * mOldRotationYs[i] + b * mNewRotationYs[i]); 1858 } 1859 } 1860 }); 1861 1862 mAnimator.playTogether(animWithInterpolator, rotationAnim); 1863 // If we call this when we're not animated, onAnimationEnd is never called on 1864 // the listener; make sure we only use the listener when we're actually animating 1865 mAnimator.addListener(mUnshrinkAnimationListener); 1866 mAnimator.start(); 1867 } else { 1868 if (enableWallpaperEffects) { 1869 setHorizontalWallpaperOffset(wallpaperOffsetForCurrentScroll()); 1870 setVerticalWallpaperOffset(0.5f); 1871 updateWallpaperOffsetImmediately(); 1872 } 1873 } 1874 } 1875 1876 hideBackgroundGradient(springLoaded ? getResources().getInteger( 1877 R.integer.config_appsCustomizeSpringLoadedBgAlpha) / 100f : 0f); 1878 } 1879 1880 /** 1881 * Draw the View v into the given Canvas. 1882 * 1883 * @param v the view to draw 1884 * @param destCanvas the canvas to draw on 1885 * @param padding the horizontal and vertical padding to use when drawing 1886 */ 1887 private void drawDragView(View v, Canvas destCanvas, int padding, boolean pruneToDrawable) { 1888 final Rect clipRect = mTempRect; 1889 v.getDrawingRect(clipRect); 1890 1891 destCanvas.save(); 1892 if (v instanceof TextView && pruneToDrawable) { 1893 Drawable d = ((TextView) v).getCompoundDrawables()[1]; 1894 clipRect.set(0, 0, d.getIntrinsicWidth() + padding, d.getIntrinsicHeight() + padding); 1895 destCanvas.translate(padding / 2, padding / 2); 1896 d.draw(destCanvas); 1897 } else { 1898 if (v instanceof FolderIcon) { 1899 clipRect.bottom = getResources().getDimensionPixelSize(R.dimen.folder_preview_size); 1900 } else if (v instanceof BubbleTextView) { 1901 final BubbleTextView tv = (BubbleTextView) v; 1902 clipRect.bottom = tv.getExtendedPaddingTop() - (int) BubbleTextView.PADDING_V + 1903 tv.getLayout().getLineTop(0); 1904 } else if (v instanceof TextView) { 1905 final TextView tv = (TextView) v; 1906 clipRect.bottom = tv.getExtendedPaddingTop() - tv.getCompoundDrawablePadding() + 1907 tv.getLayout().getLineTop(0); 1908 } 1909 destCanvas.translate(-v.getScrollX() + padding / 2, -v.getScrollY() + padding / 2); 1910 destCanvas.clipRect(clipRect, Op.REPLACE); 1911 v.draw(destCanvas); 1912 } 1913 destCanvas.restore(); 1914 } 1915 1916 /** 1917 * Returns a new bitmap to show when the given View is being dragged around. 1918 * Responsibility for the bitmap is transferred to the caller. 1919 */ 1920 public Bitmap createDragBitmap(View v, Canvas canvas, int padding) { 1921 final int outlineColor = getResources().getColor(R.color.drag_outline_color); 1922 Bitmap b; 1923 1924 if (v instanceof TextView) { 1925 Drawable d = ((TextView) v).getCompoundDrawables()[1]; 1926 b = Bitmap.createBitmap(d.getIntrinsicWidth() + padding, 1927 d.getIntrinsicHeight() + padding, Bitmap.Config.ARGB_8888); 1928 } else { 1929 b = Bitmap.createBitmap( 1930 v.getWidth() + padding, v.getHeight() + padding, Bitmap.Config.ARGB_8888); 1931 } 1932 1933 canvas.setBitmap(b); 1934 drawDragView(v, canvas, padding, true); 1935 mOutlineHelper.applyOuterBlur(b, canvas, outlineColor); 1936 1937 return b; 1938 } 1939 1940 /** 1941 * Returns a new bitmap to be used as the object outline, e.g. to visualize the drop location. 1942 * Responsibility for the bitmap is transferred to the caller. 1943 */ 1944 private Bitmap createDragOutline(View v, Canvas canvas, int padding) { 1945 final int outlineColor = getResources().getColor(R.color.drag_outline_color); 1946 final Bitmap b = Bitmap.createBitmap( 1947 v.getWidth() + padding, v.getHeight() + padding, Bitmap.Config.ARGB_8888); 1948 1949 canvas.setBitmap(b); 1950 drawDragView(v, canvas, padding, false); 1951 mOutlineHelper.applyMediumExpensiveOutlineWithBlur(b, canvas, outlineColor, outlineColor); 1952 return b; 1953 } 1954 1955 /** 1956 * Returns a new bitmap to be used as the object outline, e.g. to visualize the drop location. 1957 * Responsibility for the bitmap is transferred to the caller. 1958 */ 1959 private Bitmap createDragOutline(Bitmap orig, Canvas canvas, int padding, int w, int h) { 1960 final int outlineColor = getResources().getColor(R.color.drag_outline_color); 1961 final Bitmap b = Bitmap.createBitmap(w, h, Bitmap.Config.ARGB_8888); 1962 canvas.setBitmap(b); 1963 1964 Rect src = new Rect(0, 0, orig.getWidth(), orig.getHeight()); 1965 float scaleFactor = Math.min((w - padding) / (float) orig.getWidth(), 1966 (h - padding) / (float) orig.getHeight()); 1967 int scaledWidth = (int) (scaleFactor * orig.getWidth()); 1968 int scaledHeight = (int) (scaleFactor * orig.getHeight()); 1969 Rect dst = new Rect(0, 0, scaledWidth, scaledHeight); 1970 1971 // center the image 1972 dst.offset((w - scaledWidth) / 2, (h - scaledHeight) / 2); 1973 1974 Paint p = new Paint(); 1975 p.setFilterBitmap(true); 1976 canvas.drawBitmap(orig, src, dst, p); 1977 mOutlineHelper.applyMediumExpensiveOutlineWithBlur(b, canvas, outlineColor, outlineColor); 1978 1979 return b; 1980 } 1981 1982 /** 1983 * Creates a drag outline to represent a drop (that we don't have the actual information for 1984 * yet). May be changed in the future to alter the drop outline slightly depending on the 1985 * clip description mime data. 1986 */ 1987 private Bitmap createExternalDragOutline(Canvas canvas, int padding) { 1988 Resources r = getResources(); 1989 final int outlineColor = r.getColor(R.color.drag_outline_color); 1990 final int iconWidth = r.getDimensionPixelSize(R.dimen.workspace_cell_width); 1991 final int iconHeight = r.getDimensionPixelSize(R.dimen.workspace_cell_height); 1992 final int rectRadius = r.getDimensionPixelSize(R.dimen.external_drop_icon_rect_radius); 1993 final int inset = (int) (Math.min(iconWidth, iconHeight) * 0.2f); 1994 final Bitmap b = Bitmap.createBitmap( 1995 iconWidth + padding, iconHeight + padding, Bitmap.Config.ARGB_8888); 1996 1997 canvas.setBitmap(b); 1998 canvas.drawRoundRect(new RectF(inset, inset, iconWidth - inset, iconHeight - inset), 1999 rectRadius, rectRadius, mExternalDragOutlinePaint); 2000 mOutlineHelper.applyMediumExpensiveOutlineWithBlur(b, canvas, outlineColor, outlineColor); 2001 return b; 2002 } 2003 2004 void startDrag(CellLayout.CellInfo cellInfo) { 2005 View child = cellInfo.cell; 2006 2007 // Make sure the drag was started by a long press as opposed to a long click. 2008 if (!child.isInTouchMode()) { 2009 return; 2010 } 2011 2012 mDragInfo = cellInfo; 2013 child.setVisibility(GONE); 2014 2015 child.clearFocus(); 2016 child.setPressed(false); 2017 2018 final Canvas canvas = new Canvas(); 2019 2020 // We need to add extra padding to the bitmap to make room for the glow effect 2021 final int bitmapPadding = HolographicOutlineHelper.MAX_OUTER_BLUR_RADIUS; 2022 2023 // The outline is used to visualize where the item will land if dropped 2024 mDragOutline = createDragOutline(child, canvas, bitmapPadding); 2025 beginDragShared(child, this); 2026 } 2027 2028 public void beginDragShared(View child, DragSource source) { 2029 // We need to add extra padding to the bitmap to make room for the glow effect 2030 final int bitmapPadding = HolographicOutlineHelper.MAX_OUTER_BLUR_RADIUS; 2031 2032 // The drag bitmap follows the touch point around on the screen 2033 final Bitmap b = createDragBitmap(child, new Canvas(), bitmapPadding); 2034 2035 final int bmpWidth = b.getWidth(); 2036 final int bmpHeight = b.getHeight(); 2037 2038 mLauncher.getDragLayer().getLocationInDragLayer(child, mTempXY); 2039 final int dragLayerX = (int) mTempXY[0] + (child.getWidth() - bmpWidth) / 2; 2040 int dragLayerY = mTempXY[1] - bitmapPadding / 2; 2041 2042 Rect dragRect = null; 2043 if (child instanceof BubbleTextView) { 2044 int iconSize = getResources().getDimensionPixelSize(R.dimen.app_icon_size); 2045 int top = child.getPaddingTop(); 2046 int left = (bmpWidth - iconSize) / 2; 2047 int right = left + iconSize; 2048 int bottom = top + iconSize; 2049 dragLayerY += top; 2050 dragRect = new Rect(left, top, right, bottom); 2051 } else if (child instanceof FolderIcon) { 2052 int previewSize = getResources().getDimensionPixelSize(R.dimen.folder_preview_size); 2053 dragRect = new Rect(0, 0, child.getWidth(), previewSize); 2054 } 2055 2056 mDragController.startDrag(b, dragLayerX, dragLayerY, source, child.getTag(), 2057 DragController.DRAG_ACTION_MOVE, dragRect); 2058 b.recycle(); 2059 } 2060 2061 void addApplicationShortcut(ShortcutInfo info, CellLayout target, long container, int screen, 2062 int cellX, int cellY, boolean insertAtFirst, int intersectX, int intersectY) { 2063 View view = mLauncher.createShortcut(R.layout.application, target, (ShortcutInfo) info); 2064 2065 final int[] cellXY = new int[2]; 2066 target.findCellForSpanThatIntersects(cellXY, 1, 1, intersectX, intersectY); 2067 addInScreen(view, container, screen, cellXY[0], cellXY[1], 1, 1, insertAtFirst); 2068 LauncherModel.addOrMoveItemInDatabase(mLauncher, info, container, screen, cellXY[0], 2069 cellXY[1]); 2070 } 2071 2072 public boolean transitionStateShouldAllowDrop() { 2073 return (!isSwitchingState() || mTransitionProgress > 0.5f); 2074 } 2075 2076 /** 2077 * {@inheritDoc} 2078 */ 2079 public boolean acceptDrop(DragObject d) { 2080 // If it's an external drop (e.g. from All Apps), check if it should be accepted 2081 if (d.dragSource != this) { 2082 // Don't accept the drop if we're not over a screen at time of drop 2083 if (mDragTargetLayout == null) { 2084 return false; 2085 } 2086 if (!transitionStateShouldAllowDrop()) return false; 2087 2088 mDragViewVisualCenter = getDragViewVisualCenter(d.x, d.y, d.xOffset, d.yOffset, 2089 d.dragView, mDragViewVisualCenter); 2090 2091 int spanX = 1; 2092 int spanY = 1; 2093 View ignoreView = null; 2094 if (mDragInfo != null) { 2095 final CellLayout.CellInfo dragCellInfo = mDragInfo; 2096 spanX = dragCellInfo.spanX; 2097 spanY = dragCellInfo.spanY; 2098 ignoreView = dragCellInfo.cell; 2099 } else { 2100 final ItemInfo dragInfo = (ItemInfo) d.dragInfo; 2101 spanX = dragInfo.spanX; 2102 spanY = dragInfo.spanY; 2103 } 2104 2105 mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], 2106 (int) mDragViewVisualCenter[1], spanX, spanY, mDragTargetLayout, mTargetCell); 2107 if (willCreateUserFolder((ItemInfo) d.dragInfo, mDragTargetLayout, mTargetCell, true)) { 2108 return true; 2109 } 2110 if (willAddToExistingUserFolder((ItemInfo) d.dragInfo, mDragTargetLayout, 2111 mTargetCell)) { 2112 return true; 2113 } 2114 2115 2116 // Don't accept the drop if there's no room for the item 2117 if (!mDragTargetLayout.findCellForSpanIgnoring(null, spanX, spanY, ignoreView)) { 2118 mLauncher.showOutOfSpaceMessage(); 2119 return false; 2120 } 2121 } 2122 return true; 2123 } 2124 2125 boolean willCreateUserFolder(ItemInfo info, CellLayout target, int[] targetCell, 2126 boolean considerTimeout) { 2127 View dropOverView = target.getChildAt(targetCell[0], targetCell[1]); 2128 2129 boolean hasntMoved = false; 2130 if (mDragInfo != null) { 2131 CellLayout cellParent = getParentCellLayoutForView(mDragInfo.cell); 2132 hasntMoved = (mDragInfo.cellX == targetCell[0] && 2133 mDragInfo.cellY == targetCell[1]) && (cellParent == target); 2134 } 2135 2136 if (dropOverView == null || hasntMoved || (considerTimeout && !mCreateUserFolderOnDrop)) { 2137 return false; 2138 } 2139 2140 boolean aboveShortcut = (dropOverView.getTag() instanceof ShortcutInfo); 2141 boolean willBecomeShortcut = 2142 (info.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPLICATION || 2143 info.itemType == LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT); 2144 2145 return (aboveShortcut && willBecomeShortcut); 2146 } 2147 2148 boolean willAddToExistingUserFolder(Object dragInfo, CellLayout target, int[] targetCell) { 2149 View dropOverView = target.getChildAt(targetCell[0], targetCell[1]); 2150 if (dropOverView instanceof FolderIcon) { 2151 FolderIcon fi = (FolderIcon) dropOverView; 2152 if (fi.acceptDrop(dragInfo)) { 2153 return true; 2154 } 2155 } 2156 return false; 2157 } 2158 2159 boolean createUserFolderIfNecessary(View newView, long container, CellLayout target, 2160 int[] targetCell, boolean external, DragView dragView, Runnable postAnimationRunnable) { 2161 View v = target.getChildAt(targetCell[0], targetCell[1]); 2162 boolean hasntMoved = false; 2163 if (mDragInfo != null) { 2164 CellLayout cellParent = getParentCellLayoutForView(mDragInfo.cell); 2165 hasntMoved = (mDragInfo.cellX == targetCell[0] && 2166 mDragInfo.cellY == targetCell[1]) && (cellParent == target); 2167 } 2168 2169 if (v == null || hasntMoved || !mCreateUserFolderOnDrop) return false; 2170 mCreateUserFolderOnDrop = false; 2171 final int screen = (targetCell == null) ? mDragInfo.screen : indexOfChild(target); 2172 2173 boolean aboveShortcut = (v.getTag() instanceof ShortcutInfo); 2174 boolean willBecomeShortcut = (newView.getTag() instanceof ShortcutInfo); 2175 2176 if (aboveShortcut && willBecomeShortcut) { 2177 ShortcutInfo sourceInfo = (ShortcutInfo) newView.getTag(); 2178 ShortcutInfo destInfo = (ShortcutInfo) v.getTag(); 2179 // if the drag started here, we need to remove it from the workspace 2180 if (!external) { 2181 getParentCellLayoutForView(mDragInfo.cell).removeView(mDragInfo.cell); 2182 } 2183 2184 Rect folderLocation = new Rect(); 2185 float scale = mLauncher.getDragLayer().getDescendantRectRelativeToSelf(v, folderLocation); 2186 target.removeView(v); 2187 2188 FolderIcon fi = 2189 mLauncher.addFolder(target, container, screen, targetCell[0], targetCell[1]); 2190 destInfo.cellX = -1; 2191 destInfo.cellY = -1; 2192 sourceInfo.cellX = -1; 2193 sourceInfo.cellY = -1; 2194 2195 fi.performCreateAnimation(destInfo, v, sourceInfo, dragView, folderLocation, scale, 2196 postAnimationRunnable); 2197 return true; 2198 } 2199 return false; 2200 } 2201 2202 boolean addToExistingFolderIfNecessary(View newView, CellLayout target, int[] targetCell, 2203 DragObject d, boolean external) { 2204 View dropOverView = target.getChildAt(targetCell[0], targetCell[1]); 2205 if (dropOverView instanceof FolderIcon) { 2206 FolderIcon fi = (FolderIcon) dropOverView; 2207 if (fi.acceptDrop(d.dragInfo)) { 2208 fi.onDrop(d); 2209 2210 // if the drag started here, we need to remove it from the workspace 2211 if (!external) { 2212 getParentCellLayoutForView(mDragInfo.cell).removeView(mDragInfo.cell); 2213 } 2214 return true; 2215 } 2216 } 2217 return false; 2218 } 2219 2220 public void onDrop(DragObject d) { 2221 mDragViewVisualCenter = getDragViewVisualCenter(d.x, d.y, d.xOffset, d.yOffset, d.dragView, 2222 mDragViewVisualCenter); 2223 2224 // We want the point to be mapped to the dragTarget. 2225 if (mDragTargetLayout != null) { 2226 if (mLauncher.isHotseatLayout(mDragTargetLayout)) { 2227 mapPointFromSelfToSibling(mLauncher.getHotseat(), mDragViewVisualCenter); 2228 } else { 2229 mapPointFromSelfToChild(mDragTargetLayout, mDragViewVisualCenter, null); 2230 } 2231 } 2232 2233 // When you are in customization mode and drag to a particular screen, make that the 2234 // new current/default screen, so any subsequent taps add items to that screen 2235 if (!mLauncher.isAllAppsVisible()) { 2236 int dragTargetIndex = indexOfChild(mDragTargetLayout); 2237 if (mCurrentPage != dragTargetIndex && (isSmall() || mIsSwitchingState)) { 2238 scrollToNewPageWithoutMovingPages(dragTargetIndex); 2239 } 2240 } 2241 CellLayout dropTargetLayout = mDragTargetLayout; 2242 2243 if (d.dragSource != this) { 2244 final int[] touchXY = new int[] { (int) mDragViewVisualCenter[0], 2245 (int) mDragViewVisualCenter[1] }; 2246 onDropExternal(touchXY, d.dragInfo, dropTargetLayout, false, d); 2247 } else if (mDragInfo != null) { 2248 final View cell = mDragInfo.cell; 2249 2250 boolean continueDrop = true; 2251 if (mLauncher.isHotseatLayout(mDragTargetLayout) && d.dragInfo instanceof ItemInfo) { 2252 ItemInfo info = (ItemInfo) d.dragInfo; 2253 if (info.spanX > 1 || info.spanY > 1) { 2254 continueDrop = false; 2255 Toast.makeText(getContext(), R.string.invalid_hotseat_item, 2256 Toast.LENGTH_SHORT).show(); 2257 } 2258 } 2259 2260 if (continueDrop && dropTargetLayout != null) { 2261 // Move internally 2262 boolean hasMovedLayouts = (getParentCellLayoutForView(cell) != dropTargetLayout); 2263 boolean hasMovedIntoHotseat = mLauncher.isHotseatLayout(dropTargetLayout); 2264 long container = hasMovedIntoHotseat ? 2265 LauncherSettings.Favorites.CONTAINER_HOTSEAT : 2266 LauncherSettings.Favorites.CONTAINER_DESKTOP; 2267 int screen = (mTargetCell[0] < 0) ? 2268 mDragInfo.screen : indexOfChild(dropTargetLayout); 2269 int spanX = mDragInfo != null ? mDragInfo.spanX : 1; 2270 int spanY = mDragInfo != null ? mDragInfo.spanY : 1; 2271 // First we find the cell nearest to point at which the item is 2272 // dropped, without any consideration to whether there is an item there. 2273 mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], (int) 2274 mDragViewVisualCenter[1], spanX, spanY, dropTargetLayout, mTargetCell); 2275 // If the item being dropped is a shortcut and the nearest drop 2276 // cell also contains a shortcut, then create a folder with the two shortcuts. 2277 boolean dropInscrollArea = hasMovedLayouts && !hasMovedIntoHotseat; 2278 if (!dropInscrollArea && createUserFolderIfNecessary(cell, container, 2279 dropTargetLayout, mTargetCell, false, d.dragView, null)) { 2280 return; 2281 } 2282 2283 if (addToExistingFolderIfNecessary(cell, dropTargetLayout, mTargetCell, d, false)) { 2284 return; 2285 } 2286 2287 // Aside from the special case where we're dropping a shortcut onto a shortcut, 2288 // we need to find the nearest cell location that is vacant 2289 mTargetCell = findNearestVacantArea((int) mDragViewVisualCenter[0], 2290 (int) mDragViewVisualCenter[1], mDragInfo.spanX, mDragInfo.spanY, cell, 2291 dropTargetLayout, mTargetCell); 2292 2293 if (dropInscrollArea && mState != State.SPRING_LOADED) { 2294 snapToPage(screen); 2295 } 2296 2297 2298 if (mTargetCell[0] >= 0 && mTargetCell[1] >= 0) { 2299 if (hasMovedLayouts) { 2300 // Reparent the view 2301 getParentCellLayoutForView(cell).removeView(cell); 2302 addInScreen(cell, container, screen, mTargetCell[0], mTargetCell[1], 2303 mDragInfo.spanX, mDragInfo.spanY); 2304 } 2305 2306 // update the item's position after drop 2307 final ItemInfo info = (ItemInfo) cell.getTag(); 2308 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) cell.getLayoutParams(); 2309 dropTargetLayout.onMove(cell, mTargetCell[0], mTargetCell[1]); 2310 lp.cellX = mTargetCell[0]; 2311 lp.cellY = mTargetCell[1]; 2312 cell.setId(LauncherModel.getCellLayoutChildId(container, mDragInfo.screen, 2313 mTargetCell[0], mTargetCell[1], mDragInfo.spanX, mDragInfo.spanY)); 2314 2315 if (container != LauncherSettings.Favorites.CONTAINER_HOTSEAT && 2316 cell instanceof LauncherAppWidgetHostView) { 2317 final CellLayout cellLayout = dropTargetLayout; 2318 // We post this call so that the widget has a chance to be placed 2319 // in its final location 2320 2321 final LauncherAppWidgetHostView hostView = (LauncherAppWidgetHostView) cell; 2322 AppWidgetProviderInfo pinfo = hostView.getAppWidgetInfo(); 2323 if (pinfo.resizeMode != AppWidgetProviderInfo.RESIZE_NONE) { 2324 final Runnable resizeRunnable = new Runnable() { 2325 public void run() { 2326 DragLayer dragLayer = mLauncher.getDragLayer(); 2327 dragLayer.addResizeFrame(info, hostView, cellLayout); 2328 } 2329 }; 2330 post(new Runnable() { 2331 public void run() { 2332 if (!isPageMoving()) { 2333 resizeRunnable.run(); 2334 } else { 2335 mDelayedResizeRunnable = resizeRunnable; 2336 } 2337 } 2338 }); 2339 } 2340 } 2341 2342 LauncherModel.moveItemInDatabase(mLauncher, info, container, screen, lp.cellX, 2343 lp.cellY); 2344 } 2345 } 2346 2347 final CellLayout parent = (CellLayout) cell.getParent().getParent(); 2348 2349 // Prepare it to be animated into its new position 2350 // This must be called after the view has been re-parented 2351 final Runnable disableHardwareLayersRunnable = new Runnable() { 2352 @Override 2353 public void run() { 2354 mAnimatingViewIntoPlace = false; 2355 updateChildrenLayersEnabled(); 2356 } 2357 }; 2358 mAnimatingViewIntoPlace = true; 2359 if (d.dragView.hasDrawn()) { 2360 mLauncher.getDragLayer().animateViewIntoPosition(d.dragView, cell, 2361 disableHardwareLayersRunnable); 2362 } else { 2363 cell.setVisibility(VISIBLE); 2364 } 2365 parent.onDropChild(cell); 2366 } 2367 } 2368 2369 public void getViewLocationRelativeToSelf(View v, int[] location) { 2370 getLocationInWindow(location); 2371 int x = location[0]; 2372 int y = location[1]; 2373 2374 v.getLocationInWindow(location); 2375 int vX = location[0]; 2376 int vY = location[1]; 2377 2378 location[0] = vX - x; 2379 location[1] = vY - y; 2380 } 2381 2382 public void onDragEnter(DragObject d) { 2383 if (mDragTargetLayout != null) { 2384 mDragTargetLayout.setIsDragOverlapping(false); 2385 mDragTargetLayout.onDragExit(); 2386 } 2387 mDragTargetLayout = getCurrentDropLayout(); 2388 mDragTargetLayout.setIsDragOverlapping(true); 2389 mDragTargetLayout.onDragEnter(); 2390 2391 // Because we don't have space in the Phone UI (the CellLayouts run to the edge) we 2392 // don't need to show the outlines 2393 if (LauncherApplication.isScreenLarge()) { 2394 showOutlines(); 2395 } 2396 } 2397 2398 private void doDragExit(DragObject d) { 2399 // Clean up folders 2400 cleanupFolderCreation(d); 2401 2402 // Reset the scroll area and previous drag target 2403 onResetScrollArea(); 2404 2405 if (mDragTargetLayout != null) { 2406 mDragTargetLayout.setIsDragOverlapping(false); 2407 mDragTargetLayout.onDragExit(); 2408 } 2409 mLastDragOverView = null; 2410 2411 if (!mIsPageMoving) { 2412 hideOutlines(); 2413 } 2414 } 2415 2416 public void onDragExit(DragObject d) { 2417 doDragExit(d); 2418 } 2419 2420 public DropTarget getDropTargetDelegate(DragObject d) { 2421 return null; 2422 } 2423 2424 /** 2425 * Tests to see if the drop will be accepted by Launcher, and if so, includes additional data 2426 * in the returned structure related to the widgets that match the drop (or a null list if it is 2427 * a shortcut drop). If the drop is not accepted then a null structure is returned. 2428 */ 2429 private Pair<Integer, List<WidgetMimeTypeHandlerData>> validateDrag(DragEvent event) { 2430 final LauncherModel model = mLauncher.getModel(); 2431 final ClipDescription desc = event.getClipDescription(); 2432 final int mimeTypeCount = desc.getMimeTypeCount(); 2433 for (int i = 0; i < mimeTypeCount; ++i) { 2434 final String mimeType = desc.getMimeType(i); 2435 if (mimeType.equals(InstallShortcutReceiver.SHORTCUT_MIMETYPE)) { 2436 return new Pair<Integer, List<WidgetMimeTypeHandlerData>>(i, null); 2437 } else { 2438 final List<WidgetMimeTypeHandlerData> widgets = 2439 model.resolveWidgetsForMimeType(mContext, mimeType); 2440 if (widgets.size() > 0) { 2441 return new Pair<Integer, List<WidgetMimeTypeHandlerData>>(i, widgets); 2442 } 2443 } 2444 } 2445 return null; 2446 } 2447 2448 /** 2449 * Global drag and drop handler 2450 */ 2451 @Override 2452 public boolean onDragEvent(DragEvent event) { 2453 final ClipDescription desc = event.getClipDescription(); 2454 final CellLayout layout = (CellLayout) getChildAt(mCurrentPage); 2455 final int[] pos = new int[2]; 2456 layout.getLocationOnScreen(pos); 2457 // We need to offset the drag coordinates to layout coordinate space 2458 final int x = (int) event.getX() - pos[0]; 2459 final int y = (int) event.getY() - pos[1]; 2460 2461 switch (event.getAction()) { 2462 case DragEvent.ACTION_DRAG_STARTED: { 2463 // Validate this drag 2464 Pair<Integer, List<WidgetMimeTypeHandlerData>> test = validateDrag(event); 2465 if (test != null) { 2466 boolean isShortcut = (test.second == null); 2467 if (isShortcut) { 2468 // Check if we have enough space on this screen to add a new shortcut 2469 if (!layout.findCellForSpan(pos, 1, 1)) { 2470 mLauncher.showOutOfSpaceMessage(); 2471 return false; 2472 } 2473 } 2474 } else { 2475 // Show error message if we couldn't accept any of the items 2476 Toast.makeText(mContext, mContext.getString(R.string.external_drop_widget_error), 2477 Toast.LENGTH_SHORT).show(); 2478 return false; 2479 } 2480 2481 // Create the drag outline 2482 // We need to add extra padding to the bitmap to make room for the glow effect 2483 final Canvas canvas = new Canvas(); 2484 final int bitmapPadding = HolographicOutlineHelper.MAX_OUTER_BLUR_RADIUS; 2485 mDragOutline = createExternalDragOutline(canvas, bitmapPadding); 2486 2487 // Show the current page outlines to indicate that we can accept this drop 2488 showOutlines(); 2489 layout.setIsDragOccuring(true); 2490 layout.onDragEnter(); 2491 layout.visualizeDropLocation(null, mDragOutline, x, y, 1, 1); 2492 2493 return true; 2494 } 2495 case DragEvent.ACTION_DRAG_LOCATION: 2496 // Visualize the drop location 2497 layout.visualizeDropLocation(null, mDragOutline, x, y, 1, 1); 2498 return true; 2499 case DragEvent.ACTION_DROP: { 2500 // Try and add any shortcuts 2501 final LauncherModel model = mLauncher.getModel(); 2502 final ClipData data = event.getClipData(); 2503 2504 // We assume that the mime types are ordered in descending importance of 2505 // representation. So we enumerate the list of mime types and alert the 2506 // user if any widgets can handle the drop. Only the most preferred 2507 // representation will be handled. 2508 pos[0] = x; 2509 pos[1] = y; 2510 Pair<Integer, List<WidgetMimeTypeHandlerData>> test = validateDrag(event); 2511 if (test != null) { 2512 final int index = test.first; 2513 final List<WidgetMimeTypeHandlerData> widgets = test.second; 2514 final boolean isShortcut = (widgets == null); 2515 final String mimeType = desc.getMimeType(index); 2516 if (isShortcut) { 2517 final Intent intent = data.getItemAt(index).getIntent(); 2518 Object info = model.infoFromShortcutIntent(mContext, intent, data.getIcon()); 2519 onDropExternal(new int[] { x, y }, info, layout, false); 2520 } else { 2521 if (widgets.size() == 1) { 2522 // If there is only one item, then go ahead and add and configure 2523 // that widget 2524 final AppWidgetProviderInfo widgetInfo = widgets.get(0).widgetInfo; 2525 final PendingAddWidgetInfo createInfo = 2526 new PendingAddWidgetInfo(widgetInfo, mimeType, data); 2527 mLauncher.addAppWidgetFromDrop(createInfo, 2528 LauncherSettings.Favorites.CONTAINER_DESKTOP, mCurrentPage, null, pos); 2529 } else { 2530 // Show the widget picker dialog if there is more than one widget 2531 // that can handle this data type 2532 final InstallWidgetReceiver.WidgetListAdapter adapter = 2533 new InstallWidgetReceiver.WidgetListAdapter(mLauncher, mimeType, 2534 data, widgets, layout, mCurrentPage, pos); 2535 final AlertDialog.Builder builder = 2536 new AlertDialog.Builder(mContext); 2537 builder.setAdapter(adapter, adapter); 2538 builder.setCancelable(true); 2539 builder.setTitle(mContext.getString( 2540 R.string.external_drop_widget_pick_title)); 2541 builder.setIcon(R.drawable.ic_no_applications); 2542 builder.show(); 2543 } 2544 } 2545 } 2546 return true; 2547 } 2548 case DragEvent.ACTION_DRAG_ENDED: 2549 // Hide the page outlines after the drop 2550 layout.setIsDragOccuring(false); 2551 layout.onDragExit(); 2552 hideOutlines(); 2553 return true; 2554 } 2555 return super.onDragEvent(event); 2556 } 2557 2558 /* 2559 * 2560 * Convert the 2D coordinate xy from the parent View's coordinate space to this CellLayout's 2561 * coordinate space. The argument xy is modified with the return result. 2562 * 2563 */ 2564 void mapPointFromSelfToChild(View v, float[] xy) { 2565 mapPointFromSelfToChild(v, xy, null); 2566 } 2567 2568 /* 2569 * 2570 * Convert the 2D coordinate xy from the parent View's coordinate space to this CellLayout's 2571 * coordinate space. The argument xy is modified with the return result. 2572 * 2573 * if cachedInverseMatrix is not null, this method will just use that matrix instead of 2574 * computing it itself; we use this to avoid redundant matrix inversions in 2575 * findMatchingPageForDragOver 2576 * 2577 */ 2578 void mapPointFromSelfToChild(View v, float[] xy, Matrix cachedInverseMatrix) { 2579 if (cachedInverseMatrix == null) { 2580 v.getMatrix().invert(mTempInverseMatrix); 2581 cachedInverseMatrix = mTempInverseMatrix; 2582 } 2583 xy[0] = xy[0] + mScrollX - v.getLeft(); 2584 xy[1] = xy[1] + mScrollY - v.getTop(); 2585 cachedInverseMatrix.mapPoints(xy); 2586 } 2587 2588 /* 2589 * Maps a point from the Workspace's coordinate system to another sibling view's. (Workspace 2590 * covers the full screen) 2591 */ 2592 void mapPointFromSelfToSibling(View v, float[] xy) { 2593 xy[0] = xy[0] - v.getLeft(); 2594 xy[1] = xy[1] - v.getTop(); 2595 } 2596 2597 /* 2598 * 2599 * Convert the 2D coordinate xy from this CellLayout's coordinate space to 2600 * the parent View's coordinate space. The argument xy is modified with the return result. 2601 * 2602 */ 2603 void mapPointFromChildToSelf(View v, float[] xy) { 2604 v.getMatrix().mapPoints(xy); 2605 xy[0] -= (mScrollX - v.getLeft()); 2606 xy[1] -= (mScrollY - v.getTop()); 2607 } 2608 2609 static private float squaredDistance(float[] point1, float[] point2) { 2610 float distanceX = point1[0] - point2[0]; 2611 float distanceY = point2[1] - point2[1]; 2612 return distanceX * distanceX + distanceY * distanceY; 2613 } 2614 2615 /* 2616 * 2617 * Returns true if the passed CellLayout cl overlaps with dragView 2618 * 2619 */ 2620 boolean overlaps(CellLayout cl, DragView dragView, 2621 int dragViewX, int dragViewY, Matrix cachedInverseMatrix) { 2622 // Transform the coordinates of the item being dragged to the CellLayout's coordinates 2623 final float[] draggedItemTopLeft = mTempDragCoordinates; 2624 draggedItemTopLeft[0] = dragViewX; 2625 draggedItemTopLeft[1] = dragViewY; 2626 final float[] draggedItemBottomRight = mTempDragBottomRightCoordinates; 2627 draggedItemBottomRight[0] = draggedItemTopLeft[0] + dragView.getDragRegionWidth(); 2628 draggedItemBottomRight[1] = draggedItemTopLeft[1] + dragView.getDragRegionHeight(); 2629 2630 // Transform the dragged item's top left coordinates 2631 // to the CellLayout's local coordinates 2632 mapPointFromSelfToChild(cl, draggedItemTopLeft, cachedInverseMatrix); 2633 float overlapRegionLeft = Math.max(0f, draggedItemTopLeft[0]); 2634 float overlapRegionTop = Math.max(0f, draggedItemTopLeft[1]); 2635 2636 if (overlapRegionLeft <= cl.getWidth() && overlapRegionTop >= 0) { 2637 // Transform the dragged item's bottom right coordinates 2638 // to the CellLayout's local coordinates 2639 mapPointFromSelfToChild(cl, draggedItemBottomRight, cachedInverseMatrix); 2640 float overlapRegionRight = Math.min(cl.getWidth(), draggedItemBottomRight[0]); 2641 float overlapRegionBottom = Math.min(cl.getHeight(), draggedItemBottomRight[1]); 2642 2643 if (overlapRegionRight >= 0 && overlapRegionBottom <= cl.getHeight()) { 2644 float overlap = (overlapRegionRight - overlapRegionLeft) * 2645 (overlapRegionBottom - overlapRegionTop); 2646 if (overlap > 0) { 2647 return true; 2648 } 2649 } 2650 } 2651 return false; 2652 } 2653 2654 /* 2655 * 2656 * This method returns the CellLayout that is currently being dragged to. In order to drag 2657 * to a CellLayout, either the touch point must be directly over the CellLayout, or as a second 2658 * strategy, we see if the dragView is overlapping any CellLayout and choose the closest one 2659 * 2660 * Return null if no CellLayout is currently being dragged over 2661 * 2662 */ 2663 private CellLayout findMatchingPageForDragOver( 2664 DragView dragView, float originX, float originY, boolean exact) { 2665 // We loop through all the screens (ie CellLayouts) and see which ones overlap 2666 // with the item being dragged and then choose the one that's closest to the touch point 2667 final int screenCount = getChildCount(); 2668 CellLayout bestMatchingScreen = null; 2669 float smallestDistSoFar = Float.MAX_VALUE; 2670 2671 for (int i = 0; i < screenCount; i++) { 2672 CellLayout cl = (CellLayout) getChildAt(i); 2673 2674 final float[] touchXy = {originX, originY}; 2675 // Transform the touch coordinates to the CellLayout's local coordinates 2676 // If the touch point is within the bounds of the cell layout, we can return immediately 2677 cl.getMatrix().invert(mTempInverseMatrix); 2678 mapPointFromSelfToChild(cl, touchXy, mTempInverseMatrix); 2679 2680 if (touchXy[0] >= 0 && touchXy[0] <= cl.getWidth() && 2681 touchXy[1] >= 0 && touchXy[1] <= cl.getHeight()) { 2682 return cl; 2683 } 2684 2685 if (!exact && overlaps(cl, dragView, (int) originX, (int) originY, mTempInverseMatrix)) { 2686 // Get the center of the cell layout in screen coordinates 2687 final float[] cellLayoutCenter = mTempCellLayoutCenterCoordinates; 2688 cellLayoutCenter[0] = cl.getWidth()/2; 2689 cellLayoutCenter[1] = cl.getHeight()/2; 2690 mapPointFromChildToSelf(cl, cellLayoutCenter); 2691 2692 touchXy[0] = originX; 2693 touchXy[1] = originY; 2694 2695 // Calculate the distance between the center of the CellLayout 2696 // and the touch point 2697 float dist = squaredDistance(touchXy, cellLayoutCenter); 2698 2699 if (dist < smallestDistSoFar) { 2700 smallestDistSoFar = dist; 2701 bestMatchingScreen = cl; 2702 } 2703 } 2704 } 2705 return bestMatchingScreen; 2706 } 2707 2708 // This is used to compute the visual center of the dragView. This point is then 2709 // used to visualize drop locations and determine where to drop an item. The idea is that 2710 // the visual center represents the user's interpretation of where the item is, and hence 2711 // is the appropriate point to use when determining drop location. 2712 private float[] getDragViewVisualCenter(int x, int y, int xOffset, int yOffset, 2713 DragView dragView, float[] recycle) { 2714 float res[]; 2715 if (recycle == null) { 2716 res = new float[2]; 2717 } else { 2718 res = recycle; 2719 } 2720 2721 // First off, the drag view has been shifted in a way that is not represented in the 2722 // x and y values or the x/yOffsets. Here we account for that shift. 2723 x += getResources().getDimensionPixelSize(R.dimen.dragViewOffsetX); 2724 y += getResources().getDimensionPixelSize(R.dimen.dragViewOffsetY); 2725 2726 // These represent the visual top and left of drag view if a dragRect was provided. 2727 // If a dragRect was not provided, then they correspond to the actual view left and 2728 // top, as the dragRect is in that case taken to be the entire dragView. 2729 // R.dimen.dragViewOffsetY. 2730 int left = x - xOffset; 2731 int top = y - yOffset; 2732 2733 // In order to find the visual center, we shift by half the dragRect 2734 res[0] = left + dragView.getDragRegion().width() / 2; 2735 res[1] = top + dragView.getDragRegion().height() / 2; 2736 2737 return res; 2738 } 2739 2740 public void onDragOver(DragObject d) { 2741 // Skip drag over events while we are dragging over side pages 2742 if (mInScrollArea) return; 2743 if (mIsSwitchingState) return; 2744 2745 CellLayout layout = null; 2746 ItemInfo item = (ItemInfo) d.dragInfo; 2747 2748 // Ensure that we have proper spans for the item that we are dropping 2749 if (item.spanX < 0 || item.spanY < 0) throw new RuntimeException("Improper spans found"); 2750 2751 mDragViewVisualCenter = getDragViewVisualCenter(d.x, d.y, d.xOffset, d.yOffset, 2752 d.dragView, mDragViewVisualCenter); 2753 2754 // Identify whether we have dragged over a side page 2755 if (isSmall()) { 2756 int left = d.x - d.xOffset; 2757 int top = d.y - d.yOffset; 2758 layout = findMatchingPageForDragOver(d.dragView, mDragViewVisualCenter[0], 2759 mDragViewVisualCenter[1], true); 2760 if (layout != mDragTargetLayout) { 2761 // Cancel all intermediate folder states 2762 cleanupFolderCreation(d); 2763 2764 if (mDragTargetLayout != null) { 2765 mDragTargetLayout.setIsDragOverlapping(false); 2766 mDragTargetLayout.onDragExit(); 2767 } 2768 mDragTargetLayout = layout; 2769 if (mDragTargetLayout != null) { 2770 mDragTargetLayout.setIsDragOverlapping(true); 2771 mDragTargetLayout.onDragEnter(); 2772 } else { 2773 mLastDragOverView = null; 2774 } 2775 2776 boolean isInSpringLoadedMode = (mState == State.SPRING_LOADED); 2777 if (isInSpringLoadedMode) { 2778 mSpringLoadedDragController.setAlarm(mDragTargetLayout); 2779 } 2780 } 2781 } else { 2782 // Test to see if we are over the hotseat otherwise just use the current page 2783 Rect r = new Rect(); 2784 if (mLauncher.getHotseat() != null) { 2785 mLauncher.getHotseat().getHitRect(r); 2786 if (r.contains(d.x, d.y)) { 2787 layout = mLauncher.getHotseat().getLayout(); 2788 } 2789 } 2790 if (layout == null) { 2791 layout = getCurrentDropLayout(); 2792 } 2793 if (layout != mDragTargetLayout) { 2794 if (mDragTargetLayout != null) { 2795 mDragTargetLayout.setIsDragOverlapping(false); 2796 mDragTargetLayout.onDragExit(); 2797 } 2798 mDragTargetLayout = layout; 2799 mDragTargetLayout.setIsDragOverlapping(true); 2800 mDragTargetLayout.onDragEnter(); 2801 } 2802 } 2803 2804 // Handle the drag over 2805 if (mDragTargetLayout != null) { 2806 final View child = (mDragInfo == null) ? null : mDragInfo.cell; 2807 2808 // We want the point to be mapped to the dragTarget. 2809 if (mLauncher.isHotseatLayout(mDragTargetLayout)) { 2810 mapPointFromSelfToSibling(mLauncher.getHotseat(), mDragViewVisualCenter); 2811 } else { 2812 mapPointFromSelfToChild(mDragTargetLayout, mDragViewVisualCenter, null); 2813 } 2814 ItemInfo info = (ItemInfo) d.dragInfo; 2815 2816 mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], 2817 (int) mDragViewVisualCenter[1], 1, 1, mDragTargetLayout, mTargetCell); 2818 final View dragOverView = mDragTargetLayout.getChildAt(mTargetCell[0], 2819 mTargetCell[1]); 2820 2821 boolean userFolderPending = willCreateUserFolder(info, mDragTargetLayout, 2822 mTargetCell, false); 2823 boolean isOverFolder = dragOverView instanceof FolderIcon; 2824 if (dragOverView != mLastDragOverView) { 2825 cancelFolderCreation(); 2826 if (mLastDragOverView != null && mLastDragOverView instanceof FolderIcon) { 2827 ((FolderIcon) mLastDragOverView).onDragExit(d.dragInfo); 2828 } 2829 } 2830 2831 if (userFolderPending && dragOverView != mLastDragOverView) { 2832 mFolderCreationAlarm.setOnAlarmListener(new 2833 FolderCreationAlarmListener(mDragTargetLayout, mTargetCell[0], mTargetCell[1])); 2834 mFolderCreationAlarm.setAlarm(FOLDER_CREATION_TIMEOUT); 2835 } 2836 2837 if (dragOverView != mLastDragOverView && isOverFolder) { 2838 ((FolderIcon) dragOverView).onDragEnter(d.dragInfo); 2839 if (mDragTargetLayout != null) { 2840 mDragTargetLayout.clearDragOutlines(); 2841 } 2842 } 2843 mLastDragOverView = dragOverView; 2844 2845 if (!mCreateUserFolderOnDrop && !isOverFolder) { 2846 mDragTargetLayout.visualizeDropLocation(child, mDragOutline, 2847 (int) mDragViewVisualCenter[0], (int) mDragViewVisualCenter[1], 2848 item.spanX, item.spanY); 2849 } 2850 } 2851 } 2852 2853 private void cleanupFolderCreation(DragObject d) { 2854 if (mDragFolderRingAnimator != null && mCreateUserFolderOnDrop) { 2855 mDragFolderRingAnimator.animateToNaturalState(); 2856 } 2857 if (mLastDragOverView != null && mLastDragOverView instanceof FolderIcon) { 2858 if (d != null) { 2859 ((FolderIcon) mLastDragOverView).onDragExit(d.dragInfo); 2860 } 2861 } 2862 mFolderCreationAlarm.cancelAlarm(); 2863 } 2864 2865 private void cancelFolderCreation() { 2866 if (mDragFolderRingAnimator != null && mCreateUserFolderOnDrop) { 2867 mDragFolderRingAnimator.animateToNaturalState(); 2868 } 2869 mCreateUserFolderOnDrop = false; 2870 mFolderCreationAlarm.cancelAlarm(); 2871 } 2872 2873 class FolderCreationAlarmListener implements OnAlarmListener { 2874 CellLayout layout; 2875 int cellX; 2876 int cellY; 2877 2878 public FolderCreationAlarmListener(CellLayout layout, int cellX, int cellY) { 2879 this.layout = layout; 2880 this.cellX = cellX; 2881 this.cellY = cellY; 2882 } 2883 2884 public void onAlarm(Alarm alarm) { 2885 if (mDragFolderRingAnimator == null) { 2886 mDragFolderRingAnimator = new FolderRingAnimator(mLauncher, null); 2887 } 2888 mDragFolderRingAnimator.setCell(cellX, cellY); 2889 mDragFolderRingAnimator.setCellLayout(layout); 2890 mDragFolderRingAnimator.animateToAcceptState(); 2891 layout.showFolderAccept(mDragFolderRingAnimator); 2892 layout.clearDragOutlines(); 2893 mCreateUserFolderOnDrop = true; 2894 } 2895 } 2896 2897 @Override 2898 public void getHitRect(Rect outRect) { 2899 // We want the workspace to have the whole area of the display (it will find the correct 2900 // cell layout to drop to in the existing drag/drop logic. 2901 final Display d = mLauncher.getWindowManager().getDefaultDisplay(); 2902 outRect.set(0, 0, d.getWidth(), d.getHeight()); 2903 } 2904 2905 /** 2906 * Add the item specified by dragInfo to the given layout. 2907 * @return true if successful 2908 */ 2909 public boolean addExternalItemToScreen(ItemInfo dragInfo, CellLayout layout) { 2910 if (layout.findCellForSpan(mTempEstimate, dragInfo.spanX, dragInfo.spanY)) { 2911 onDropExternal(dragInfo.dropPos, (ItemInfo) dragInfo, (CellLayout) layout, false); 2912 return true; 2913 } 2914 mLauncher.showOutOfSpaceMessage(); 2915 return false; 2916 } 2917 2918 private void onDropExternal(int[] touchXY, Object dragInfo, 2919 CellLayout cellLayout, boolean insertAtFirst) { 2920 onDropExternal(touchXY, dragInfo, cellLayout, insertAtFirst, null); 2921 } 2922 2923 /** 2924 * Drop an item that didn't originate on one of the workspace screens. 2925 * It may have come from Launcher (e.g. from all apps or customize), or it may have 2926 * come from another app altogether. 2927 * 2928 * NOTE: This can also be called when we are outside of a drag event, when we want 2929 * to add an item to one of the workspace screens. 2930 */ 2931 private void onDropExternal(final int[] touchXY, final Object dragInfo, 2932 final CellLayout cellLayout, boolean insertAtFirst, DragObject d) { 2933 final Runnable exitSpringLoadedRunnable = new Runnable() { 2934 @Override 2935 public void run() { 2936 mLauncher.exitSpringLoadedDragModeDelayed(false); 2937 } 2938 }; 2939 2940 ItemInfo info = (ItemInfo) dragInfo; 2941 int spanX = info.spanX; 2942 int spanY = info.spanY; 2943 if (mDragInfo != null) { 2944 spanX = mDragInfo.spanX; 2945 spanY = mDragInfo.spanY; 2946 } 2947 2948 final long container = mLauncher.isHotseatLayout(cellLayout) ? 2949 LauncherSettings.Favorites.CONTAINER_HOTSEAT : 2950 LauncherSettings.Favorites.CONTAINER_DESKTOP; 2951 final int screen = indexOfChild(cellLayout); 2952 if (!mLauncher.isHotseatLayout(cellLayout) && screen != mCurrentPage 2953 && mState != State.SPRING_LOADED) { 2954 snapToPage(screen); 2955 } 2956 2957 if (info instanceof PendingAddItemInfo) { 2958 final PendingAddItemInfo pendingInfo = (PendingAddItemInfo) dragInfo; 2959 2960 mTargetCell = findNearestVacantArea(touchXY[0], touchXY[1], spanX, spanY, null, 2961 cellLayout, mTargetCell); 2962 Runnable onAnimationCompleteRunnable = new Runnable() { 2963 @Override 2964 public void run() { 2965 // When dragging and dropping from customization tray, we deal with creating 2966 // widgets/shortcuts/folders in a slightly different way 2967 switch (pendingInfo.itemType) { 2968 case LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET: 2969 mLauncher.addAppWidgetFromDrop((PendingAddWidgetInfo) pendingInfo, 2970 container, screen, mTargetCell, null); 2971 break; 2972 case LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT: 2973 mLauncher.processShortcutFromDrop(pendingInfo.componentName, 2974 container, screen, mTargetCell, null); 2975 break; 2976 default: 2977 throw new IllegalStateException("Unknown item type: " + 2978 pendingInfo.itemType); 2979 } 2980 cellLayout.onDragExit(); 2981 } 2982 }; 2983 2984 // Now we animate the dragView, (ie. the widget or shortcut preview) into its final 2985 // location and size on the home screen. 2986 int loc[] = new int[2]; 2987 cellLayout.cellToPoint(mTargetCell[0], mTargetCell[1], loc); 2988 2989 RectF r = new RectF(); 2990 cellLayout.cellToRect(mTargetCell[0], mTargetCell[1], spanX, spanY, r); 2991 setFinalTransitionTransform(cellLayout); 2992 float cellLayoutScale = 2993 mLauncher.getDragLayer().getDescendantCoordRelativeToSelf(cellLayout, loc); 2994 resetTransitionTransform(cellLayout); 2995 2996 float dragViewScale = r.width() / d.dragView.getMeasuredWidth(); 2997 // The animation will scale the dragView about its center, so we need to center about 2998 // the final location. 2999 loc[0] -= (d.dragView.getMeasuredWidth() - cellLayoutScale * r.width()) / 2; 3000 loc[1] -= (d.dragView.getMeasuredHeight() - cellLayoutScale * r.height()) / 2; 3001 3002 mLauncher.getDragLayer().animateViewIntoPosition(d.dragView, loc, 3003 dragViewScale * cellLayoutScale, onAnimationCompleteRunnable); 3004 } else { 3005 // This is for other drag/drop cases, like dragging from All Apps 3006 View view = null; 3007 3008 switch (info.itemType) { 3009 case LauncherSettings.Favorites.ITEM_TYPE_APPLICATION: 3010 case LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT: 3011 if (info.container == NO_ID && info instanceof ApplicationInfo) { 3012 // Came from all apps -- make a copy 3013 info = new ShortcutInfo((ApplicationInfo) info); 3014 } 3015 view = mLauncher.createShortcut(R.layout.application, cellLayout, 3016 (ShortcutInfo) info); 3017 break; 3018 case LauncherSettings.Favorites.ITEM_TYPE_FOLDER: 3019 view = FolderIcon.fromXml(R.layout.folder_icon, mLauncher, cellLayout, 3020 (FolderInfo) info, mIconCache); 3021 break; 3022 default: 3023 throw new IllegalStateException("Unknown item type: " + info.itemType); 3024 } 3025 3026 // First we find the cell nearest to point at which the item is 3027 // dropped, without any consideration to whether there is an item there. 3028 if (touchXY != null) { 3029 mTargetCell = findNearestArea((int) touchXY[0], (int) touchXY[1], spanX, spanY, 3030 cellLayout, mTargetCell); 3031 d.postAnimationRunnable = exitSpringLoadedRunnable; 3032 if (createUserFolderIfNecessary(view, container, cellLayout, mTargetCell, true, 3033 d.dragView, d.postAnimationRunnable)) { 3034 return; 3035 } 3036 if (addToExistingFolderIfNecessary(view, cellLayout, mTargetCell, d, true)) { 3037 return; 3038 } 3039 } 3040 3041 if (touchXY != null) { 3042 // when dragging and dropping, just find the closest free spot 3043 mTargetCell = findNearestVacantArea(touchXY[0], touchXY[1], 1, 1, null, 3044 cellLayout, mTargetCell); 3045 } else { 3046 cellLayout.findCellForSpan(mTargetCell, 1, 1); 3047 } 3048 addInScreen(view, container, screen, mTargetCell[0], mTargetCell[1], info.spanX, 3049 info.spanY, insertAtFirst); 3050 cellLayout.onDropChild(view); 3051 cellLayout.animateDrop(); 3052 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) view.getLayoutParams(); 3053 cellLayout.getChildrenLayout().measureChild(view); 3054 3055 LauncherModel.addOrMoveItemInDatabase(mLauncher, info, container, screen, 3056 lp.cellX, lp.cellY); 3057 3058 if (d.dragView != null) { 3059 // We wrap the animation call in the temporary set and reset of the current 3060 // cellLayout to its final transform -- this means we animate the drag view to 3061 // the correct final location. 3062 setFinalTransitionTransform(cellLayout); 3063 mLauncher.getDragLayer().animateViewIntoPosition(d.dragView, view, 3064 exitSpringLoadedRunnable); 3065 resetTransitionTransform(cellLayout); 3066 } 3067 } 3068 } 3069 3070 public void setFinalTransitionTransform(CellLayout layout) { 3071 if (isSwitchingState()) { 3072 int index = indexOfChild(layout); 3073 mCurrentScaleX = layout.getScaleX(); 3074 mCurrentScaleY = layout.getScaleY(); 3075 mCurrentTranslationX = layout.getTranslationX(); 3076 mCurrentTranslationY = layout.getTranslationY(); 3077 mCurrentRotationY = layout.getRotationY(); 3078 layout.setScaleX(mNewScaleXs[index]); 3079 layout.setScaleY(mNewScaleYs[index]); 3080 layout.setTranslationX(mNewTranslationXs[index]); 3081 layout.setTranslationY(mNewTranslationYs[index]); 3082 layout.setRotationY(mNewRotationYs[index]); 3083 } 3084 } 3085 public void resetTransitionTransform(CellLayout layout) { 3086 if (isSwitchingState()) { 3087 int index = indexOfChild(layout); 3088 mCurrentScaleX = layout.getScaleX(); 3089 mCurrentScaleY = layout.getScaleY(); 3090 mCurrentTranslationX = layout.getTranslationX(); 3091 mCurrentTranslationY = layout.getTranslationY(); 3092 mCurrentRotationY = layout.getRotationY(); 3093 layout.setScaleX(mCurrentScaleX); 3094 layout.setScaleY(mCurrentScaleY); 3095 layout.setTranslationX(mCurrentTranslationX); 3096 layout.setTranslationY(mCurrentTranslationY); 3097 layout.setRotationY(mCurrentRotationY); 3098 } 3099 } 3100 3101 /** 3102 * Return the current {@link CellLayout}, correctly picking the destination 3103 * screen while a scroll is in progress. 3104 */ 3105 public CellLayout getCurrentDropLayout() { 3106 return (CellLayout) getChildAt(mNextPage == INVALID_PAGE ? mCurrentPage : mNextPage); 3107 } 3108 3109 /** 3110 * Return the current CellInfo describing our current drag; this method exists 3111 * so that Launcher can sync this object with the correct info when the activity is created/ 3112 * destroyed 3113 * 3114 */ 3115 public CellLayout.CellInfo getDragInfo() { 3116 return mDragInfo; 3117 } 3118 3119 /** 3120 * Calculate the nearest cell where the given object would be dropped. 3121 * 3122 * pixelX and pixelY should be in the coordinate system of layout 3123 */ 3124 private int[] findNearestVacantArea(int pixelX, int pixelY, 3125 int spanX, int spanY, View ignoreView, CellLayout layout, int[] recycle) { 3126 return layout.findNearestVacantArea( 3127 pixelX, pixelY, spanX, spanY, ignoreView, recycle); 3128 } 3129 3130 /** 3131 * Calculate the nearest cell where the given object would be dropped. 3132 * 3133 * pixelX and pixelY should be in the coordinate system of layout 3134 */ 3135 private int[] findNearestArea(int pixelX, int pixelY, 3136 int spanX, int spanY, CellLayout layout, int[] recycle) { 3137 return layout.findNearestArea( 3138 pixelX, pixelY, spanX, spanY, recycle); 3139 } 3140 3141 void setup(Launcher launcher, DragController dragController) { 3142 mLauncher = launcher; 3143 mSpringLoadedDragController = new SpringLoadedDragController(mLauncher); 3144 mDragController = dragController; 3145 3146 3147 // hardware layers on children are enabled on startup, but should be disabled until 3148 // needed 3149 updateChildrenLayersEnabled(); 3150 setWallpaperDimension(); 3151 } 3152 3153 /** 3154 * Called at the end of a drag which originated on the workspace. 3155 */ 3156 public void onDropCompleted(View target, DragObject d, boolean success) { 3157 if (success) { 3158 if (target != this) { 3159 if (mDragInfo != null) { 3160 getParentCellLayoutForView(mDragInfo.cell).removeView(mDragInfo.cell); 3161 if (mDragInfo.cell instanceof DropTarget) { 3162 mDragController.removeDropTarget((DropTarget) mDragInfo.cell); 3163 } 3164 } 3165 } 3166 } else if (mDragInfo != null) { 3167 // NOTE: When 'success' is true, onDragExit is called by the DragController before 3168 // calling onDropCompleted(). We call it ourselves here, but maybe this should be 3169 // moved into DragController.cancelDrag(). 3170 doDragExit(null); 3171 CellLayout cellLayout; 3172 if (mLauncher.isHotseatLayout(target)) { 3173 cellLayout = mLauncher.getHotseat().getLayout(); 3174 } else { 3175 cellLayout = (CellLayout) getChildAt(mDragInfo.screen); 3176 } 3177 cellLayout.onDropChild(mDragInfo.cell); 3178 } 3179 mDragOutline = null; 3180 mDragInfo = null; 3181 } 3182 3183 public boolean isDropEnabled() { 3184 return true; 3185 } 3186 3187 @Override 3188 protected void onRestoreInstanceState(Parcelable state) { 3189 super.onRestoreInstanceState(state); 3190 Launcher.setScreen(mCurrentPage); 3191 } 3192 3193 @Override 3194 public void scrollLeft() { 3195 if (!isSmall() && !mIsSwitchingState) { 3196 super.scrollLeft(); 3197 } 3198 Folder openFolder = getOpenFolder(); 3199 if (openFolder != null) { 3200 openFolder.completeDragExit(); 3201 } 3202 } 3203 3204 @Override 3205 public void scrollRight() { 3206 if (!isSmall() && !mIsSwitchingState) { 3207 super.scrollRight(); 3208 } 3209 Folder openFolder = getOpenFolder(); 3210 if (openFolder != null) { 3211 openFolder.completeDragExit(); 3212 } 3213 } 3214 3215 @Override 3216 public void onEnterScrollArea(int direction) { 3217 if (!isSmall() && !mIsSwitchingState) { 3218 mInScrollArea = true; 3219 3220 final int page = mCurrentPage + (direction == DragController.SCROLL_LEFT ? -1 : 1); 3221 final CellLayout layout = (CellLayout) getChildAt(page); 3222 cancelFolderCreation(); 3223 3224 if (layout != null) { 3225 // Exit the current layout and mark the overlapping layout 3226 if (mDragTargetLayout != null) { 3227 mDragTargetLayout.setIsDragOverlapping(false); 3228 mDragTargetLayout.onDragExit(); 3229 } 3230 mDragTargetLayout = layout; 3231 mDragTargetLayout.setIsDragOverlapping(true); 3232 3233 // Workspace is responsible for drawing the edge glow on adjacent pages, 3234 // so we need to redraw the workspace when this may have changed. 3235 invalidate(); 3236 } 3237 } 3238 } 3239 3240 @Override 3241 public void onExitScrollArea() { 3242 if (mInScrollArea) { 3243 if (mDragTargetLayout != null) { 3244 // Unmark the overlapping layout and re-enter the current layout 3245 mDragTargetLayout.setIsDragOverlapping(false); 3246 mDragTargetLayout = getCurrentDropLayout(); 3247 mDragTargetLayout.onDragEnter(); 3248 3249 // Workspace is responsible for drawing the edge glow on adjacent pages, 3250 // so we need to redraw the workspace when this may have changed. 3251 invalidate(); 3252 } 3253 mInScrollArea = false; 3254 } 3255 } 3256 3257 private void onResetScrollArea() { 3258 if (mDragTargetLayout != null) { 3259 // Unmark the overlapping layout 3260 mDragTargetLayout.setIsDragOverlapping(false); 3261 3262 // Workspace is responsible for drawing the edge glow on adjacent pages, 3263 // so we need to redraw the workspace when this may have changed. 3264 invalidate(); 3265 } 3266 mInScrollArea = false; 3267 } 3268 3269 /** 3270 * Returns a specific CellLayout 3271 */ 3272 CellLayout getParentCellLayoutForView(View v) { 3273 ArrayList<CellLayout> layouts = getWorkspaceAndHotseatCellLayouts(); 3274 for (CellLayout layout : layouts) { 3275 if (layout.getChildrenLayout().indexOfChild(v) > -1) { 3276 return layout; 3277 } 3278 } 3279 return null; 3280 } 3281 3282 /** 3283 * Returns a list of all the CellLayouts in the workspace. 3284 */ 3285 ArrayList<CellLayout> getWorkspaceAndHotseatCellLayouts() { 3286 ArrayList<CellLayout> layouts = new ArrayList<CellLayout>(); 3287 int screenCount = getChildCount(); 3288 for (int screen = 0; screen < screenCount; screen++) { 3289 layouts.add(((CellLayout) getChildAt(screen))); 3290 } 3291 if (mLauncher.getHotseat() != null) { 3292 layouts.add(mLauncher.getHotseat().getLayout()); 3293 } 3294 return layouts; 3295 } 3296 3297 /** 3298 * We should only use this to search for specific children. Do not use this method to modify 3299 * CellLayoutChildren directly. 3300 */ 3301 ArrayList<CellLayoutChildren> getWorkspaceAndHotseatCellLayoutChildren() { 3302 ArrayList<CellLayoutChildren> childrenLayouts = new ArrayList<CellLayoutChildren>(); 3303 int screenCount = getChildCount(); 3304 for (int screen = 0; screen < screenCount; screen++) { 3305 childrenLayouts.add(((CellLayout) getChildAt(screen)).getChildrenLayout()); 3306 } 3307 if (mLauncher.getHotseat() != null) { 3308 childrenLayouts.add(mLauncher.getHotseat().getLayout().getChildrenLayout()); 3309 } 3310 return childrenLayouts; 3311 } 3312 3313 public Folder getFolderForTag(Object tag) { 3314 ArrayList<CellLayoutChildren> childrenLayouts = getWorkspaceAndHotseatCellLayoutChildren(); 3315 for (CellLayoutChildren layout: childrenLayouts) { 3316 int count = layout.getChildCount(); 3317 for (int i = 0; i < count; i++) { 3318 View child = layout.getChildAt(i); 3319 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) child.getLayoutParams(); 3320 if (child instanceof Folder) { 3321 Folder f = (Folder) child; 3322 if (f.getInfo() == tag && f.getInfo().opened) { 3323 return f; 3324 } 3325 } 3326 } 3327 } 3328 return null; 3329 } 3330 3331 public View getViewForTag(Object tag) { 3332 ArrayList<CellLayoutChildren> childrenLayouts = getWorkspaceAndHotseatCellLayoutChildren(); 3333 for (CellLayoutChildren layout: childrenLayouts) { 3334 int count = layout.getChildCount(); 3335 for (int i = 0; i < count; i++) { 3336 View child = layout.getChildAt(i); 3337 if (child.getTag() == tag) { 3338 return child; 3339 } 3340 } 3341 } 3342 return null; 3343 } 3344 3345 void clearDropTargets() { 3346 ArrayList<CellLayoutChildren> childrenLayouts = getWorkspaceAndHotseatCellLayoutChildren(); 3347 for (CellLayoutChildren layout: childrenLayouts) { 3348 int childCount = layout.getChildCount(); 3349 for (int j = 0; j < childCount; j++) { 3350 View v = layout.getChildAt(j); 3351 if (v instanceof DropTarget) { 3352 mDragController.removeDropTarget((DropTarget) v); 3353 } 3354 } 3355 } 3356 } 3357 3358 void removeItems(final ArrayList<ApplicationInfo> apps) { 3359 final int screenCount = getChildCount(); 3360 final AppWidgetManager widgets = AppWidgetManager.getInstance(getContext()); 3361 3362 final HashSet<String> packageNames = new HashSet<String>(); 3363 final int appCount = apps.size(); 3364 for (int i = 0; i < appCount; i++) { 3365 packageNames.add(apps.get(i).componentName.getPackageName()); 3366 } 3367 3368 ArrayList<CellLayout> cellLayouts = getWorkspaceAndHotseatCellLayouts(); 3369 for (final CellLayout layoutParent: cellLayouts) { 3370 final ViewGroup layout = layoutParent.getChildrenLayout(); 3371 3372 // Avoid ANRs by treating each screen separately 3373 post(new Runnable() { 3374 public void run() { 3375 final ArrayList<View> childrenToRemove = new ArrayList<View>(); 3376 childrenToRemove.clear(); 3377 3378 int childCount = layout.getChildCount(); 3379 for (int j = 0; j < childCount; j++) { 3380 final View view = layout.getChildAt(j); 3381 Object tag = view.getTag(); 3382 3383 if (tag instanceof ShortcutInfo) { 3384 final ShortcutInfo info = (ShortcutInfo) tag; 3385 final Intent intent = info.intent; 3386 final ComponentName name = intent.getComponent(); 3387 3388 if (Intent.ACTION_MAIN.equals(intent.getAction()) && name != null) { 3389 for (String packageName: packageNames) { 3390 if (packageName.equals(name.getPackageName())) { 3391 LauncherModel.deleteItemFromDatabase(mLauncher, info); 3392 childrenToRemove.add(view); 3393 } 3394 } 3395 } 3396 } else if (tag instanceof FolderInfo) { 3397 final FolderInfo info = (FolderInfo) tag; 3398 final ArrayList<ShortcutInfo> contents = info.contents; 3399 final int contentsCount = contents.size(); 3400 final ArrayList<ShortcutInfo> appsToRemoveFromFolder = 3401 new ArrayList<ShortcutInfo>(); 3402 3403 for (int k = 0; k < contentsCount; k++) { 3404 final ShortcutInfo appInfo = contents.get(k); 3405 final Intent intent = appInfo.intent; 3406 final ComponentName name = intent.getComponent(); 3407 3408 if (Intent.ACTION_MAIN.equals(intent.getAction()) && name != null) { 3409 for (String packageName: packageNames) { 3410 if (packageName.equals(name.getPackageName())) { 3411 appsToRemoveFromFolder.add(appInfo); 3412 } 3413 } 3414 } 3415 } 3416 for (ShortcutInfo item: appsToRemoveFromFolder) { 3417 info.remove(item); 3418 LauncherModel.deleteItemFromDatabase(mLauncher, item); 3419 } 3420 } else if (tag instanceof LauncherAppWidgetInfo) { 3421 final LauncherAppWidgetInfo info = (LauncherAppWidgetInfo) tag; 3422 final AppWidgetProviderInfo provider = 3423 widgets.getAppWidgetInfo(info.appWidgetId); 3424 if (provider != null) { 3425 for (String packageName: packageNames) { 3426 if (packageName.equals(provider.provider.getPackageName())) { 3427 LauncherModel.deleteItemFromDatabase(mLauncher, info); 3428 childrenToRemove.add(view); 3429 } 3430 } 3431 } 3432 } 3433 } 3434 3435 childCount = childrenToRemove.size(); 3436 for (int j = 0; j < childCount; j++) { 3437 View child = childrenToRemove.get(j); 3438 // Note: We can not remove the view directly from CellLayoutChildren as this 3439 // does not re-mark the spaces as unoccupied. 3440 layoutParent.removeViewInLayout(child); 3441 if (child instanceof DropTarget) { 3442 mDragController.removeDropTarget((DropTarget)child); 3443 } 3444 } 3445 3446 if (childCount > 0) { 3447 layout.requestLayout(); 3448 layout.invalidate(); 3449 } 3450 } 3451 }); 3452 } 3453 } 3454 3455 void updateShortcuts(ArrayList<ApplicationInfo> apps) { 3456 ArrayList<CellLayoutChildren> childrenLayouts = getWorkspaceAndHotseatCellLayoutChildren(); 3457 for (CellLayoutChildren layout: childrenLayouts) { 3458 int childCount = layout.getChildCount(); 3459 for (int j = 0; j < childCount; j++) { 3460 final View view = layout.getChildAt(j); 3461 Object tag = view.getTag(); 3462 if (tag instanceof ShortcutInfo) { 3463 ShortcutInfo info = (ShortcutInfo)tag; 3464 // We need to check for ACTION_MAIN otherwise getComponent() might 3465 // return null for some shortcuts (for instance, for shortcuts to 3466 // web pages.) 3467 final Intent intent = info.intent; 3468 final ComponentName name = intent.getComponent(); 3469 if (info.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPLICATION && 3470 Intent.ACTION_MAIN.equals(intent.getAction()) && name != null) { 3471 final int appCount = apps.size(); 3472 for (int k = 0; k < appCount; k++) { 3473 ApplicationInfo app = apps.get(k); 3474 if (app.componentName.equals(name)) { 3475 info.setIcon(mIconCache.getIcon(info.intent)); 3476 ((TextView)view).setCompoundDrawablesWithIntrinsicBounds(null, 3477 new FastBitmapDrawable(info.getIcon(mIconCache)), 3478 null, null); 3479 } 3480 } 3481 } 3482 } 3483 } 3484 } 3485 } 3486 3487 void moveToDefaultScreen(boolean animate) { 3488 if (!isSmall()) { 3489 if (animate) { 3490 snapToPage(mDefaultPage); 3491 } else { 3492 setCurrentPage(mDefaultPage); 3493 } 3494 } 3495 getChildAt(mDefaultPage).requestFocus(); 3496 } 3497 3498 @Override 3499 public void syncPages() { 3500 } 3501 3502 @Override 3503 public void syncPageItems(int page) { 3504 } 3505 3506 @Override 3507 protected String getCurrentPageDescription() { 3508 int page = (mNextPage != INVALID_PAGE) ? mNextPage : mCurrentPage; 3509 return String.format(mContext.getString(R.string.workspace_scroll_format), 3510 page + 1, getChildCount()); 3511 } 3512 3513 public void getLocationInDragLayer(int[] loc) { 3514 mLauncher.getDragLayer().getLocationInDragLayer(this, loc); 3515 } 3516 3517 /** 3518 * Return true because we want the scrolling indicator to stretch to fit the space. 3519 */ 3520 protected boolean hasElasticScrollIndicator() { 3521 return true; 3522 } 3523} 3524