Workspace.java revision 292bffbdc8bf1c9110c0ef9fcd4fedc5f002c9e4
1/* 2 * Copyright (C) 2008 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17package com.android.launcher2; 18 19import android.animation.Animator; 20import android.animation.AnimatorListenerAdapter; 21import android.animation.AnimatorSet; 22import android.animation.ObjectAnimator; 23import android.animation.TimeInterpolator; 24import android.animation.ValueAnimator; 25import android.animation.Animator.AnimatorListener; 26import android.animation.ValueAnimator.AnimatorUpdateListener; 27import android.app.AlertDialog; 28import android.app.WallpaperManager; 29import android.appwidget.AppWidgetManager; 30import android.appwidget.AppWidgetProviderInfo; 31import android.content.ClipData; 32import android.content.ClipDescription; 33import android.content.ComponentName; 34import android.content.Context; 35import android.content.Intent; 36import android.content.pm.PackageManager; 37import android.content.res.Resources; 38import android.content.res.TypedArray; 39import android.graphics.Bitmap; 40import android.graphics.Camera; 41import android.graphics.Canvas; 42import android.graphics.Color; 43import android.graphics.Matrix; 44import android.graphics.Paint; 45import android.graphics.Rect; 46import android.graphics.RectF; 47import android.graphics.Region.Op; 48import android.graphics.drawable.Drawable; 49import android.os.IBinder; 50import android.os.Parcelable; 51import android.util.AttributeSet; 52import android.util.DisplayMetrics; 53import android.util.Log; 54import android.util.Pair; 55import android.view.Display; 56import android.view.DragEvent; 57import android.view.MotionEvent; 58import android.view.View; 59import android.view.ViewGroup; 60import android.view.animation.DecelerateInterpolator; 61import android.widget.ImageView; 62import android.widget.TextView; 63import android.widget.Toast; 64 65import com.android.launcher.R; 66import com.android.launcher2.FolderIcon.FolderRingAnimator; 67import com.android.launcher2.InstallWidgetReceiver.WidgetMimeTypeHandlerData; 68 69import java.util.ArrayList; 70import java.util.HashSet; 71import java.util.List; 72 73/** 74 * The workspace is a wide area with a wallpaper and a finite number of pages. 75 * Each page contains a number of icons, folders or widgets the user can 76 * interact with. A workspace is meant to be used with a fixed width only. 77 */ 78public class Workspace extends SmoothPagedView 79 implements DropTarget, DragSource, DragScroller, View.OnTouchListener, 80 DragController.DragListener { 81 @SuppressWarnings({"UnusedDeclaration"}) 82 private static final String TAG = "Launcher.Workspace"; 83 84 // Y rotation to apply to the workspace screens 85 private static final float WORKSPACE_ROTATION = 12.5f; 86 87 // These are extra scale factors to apply to the mini home screens 88 // so as to achieve the desired transform 89 private static final float EXTRA_SCALE_FACTOR_0 = 0.972f; 90 private static final float EXTRA_SCALE_FACTOR_1 = 1.0f; 91 private static final float EXTRA_SCALE_FACTOR_2 = 1.10f; 92 93 private static final int CHILDREN_OUTLINE_FADE_OUT_DELAY = 0; 94 private static final int CHILDREN_OUTLINE_FADE_OUT_DURATION = 375; 95 private static final int CHILDREN_OUTLINE_FADE_IN_DURATION = 100; 96 97 private static final int BACKGROUND_FADE_OUT_DURATION = 350; 98 private static final int BACKGROUND_FADE_IN_DURATION = 350; 99 100 // These animators are used to fade the children's outlines 101 private ObjectAnimator mChildrenOutlineFadeInAnimation; 102 private ObjectAnimator mChildrenOutlineFadeOutAnimation; 103 private float mChildrenOutlineAlpha = 0; 104 105 // These properties refer to the background protection gradient used for AllApps and Customize 106 private ValueAnimator mBackgroundFadeInAnimation; 107 private ValueAnimator mBackgroundFadeOutAnimation; 108 private Drawable mBackground; 109 boolean mDrawBackground = true; 110 private float mBackgroundAlpha = 0; 111 private float mOverScrollMaxBackgroundAlpha = 0.0f; 112 private int mOverScrollPageIndex = -1; 113 private AnimatorSet mDividerAnimator; 114 115 private final WallpaperManager mWallpaperManager; 116 private IBinder mWindowToken; 117 118 private int mDefaultPage; 119 120 /** 121 * CellInfo for the cell that is currently being dragged 122 */ 123 private CellLayout.CellInfo mDragInfo; 124 125 /** 126 * Target drop area calculated during last acceptDrop call. 127 */ 128 private int[] mTargetCell = new int[2]; 129 130 /** 131 * The CellLayout that is currently being dragged over 132 */ 133 private CellLayout mDragTargetLayout = null; 134 135 private Launcher mLauncher; 136 private IconCache mIconCache; 137 private DragController mDragController; 138 139 // These are temporary variables to prevent having to allocate a new object just to 140 // return an (x, y) value from helper functions. Do NOT use them to maintain other state. 141 private int[] mTempCell = new int[2]; 142 private int[] mTempEstimate = new int[2]; 143 private float[] mDragViewVisualCenter = new float[2]; 144 private float[] mTempDragCoordinates = new float[2]; 145 private float[] mTempCellLayoutCenterCoordinates = new float[2]; 146 private float[] mTempDragBottomRightCoordinates = new float[2]; 147 private Matrix mTempInverseMatrix = new Matrix(); 148 149 private SpringLoadedDragController mSpringLoadedDragController; 150 private float mSpringLoadedShrinkFactor; 151 152 private static final int DEFAULT_CELL_COUNT_X = 4; 153 private static final int DEFAULT_CELL_COUNT_Y = 4; 154 155 // State variable that indicates whether the pages are small (ie when you're 156 // in all apps or customize mode) 157 158 enum State { NORMAL, SPRING_LOADED, SMALL }; 159 private State mState; 160 private boolean mIsSwitchingState = false; 161 162 private boolean mSwitchStateAfterFirstLayout = false; 163 private State mStateAfterFirstLayout; 164 165 private AnimatorSet mAnimator; 166 private AnimatorListener mShrinkAnimationListener; 167 private AnimatorListener mUnshrinkAnimationListener; 168 // Working around the face that cancelled animations may not actually be cancelled if they 169 // are cancelled before starting 170 private boolean mShrinkAnimationEnabled; 171 private boolean mUnshrinkAnimationEnabled; 172 173 boolean mAnimatingViewIntoPlace = false; 174 boolean mIsDragOccuring = false; 175 boolean mChildrenLayersEnabled = true; 176 177 /** Is the user is dragging an item near the edge of a page? */ 178 private boolean mInScrollArea = false; 179 180 private final HolographicOutlineHelper mOutlineHelper = new HolographicOutlineHelper(); 181 private Bitmap mDragOutline = null; 182 private final Rect mTempRect = new Rect(); 183 private final int[] mTempXY = new int[2]; 184 185 // Paint used to draw external drop outline 186 private final Paint mExternalDragOutlinePaint = new Paint(); 187 188 // Camera and Matrix used to determine the final position of a neighboring CellLayout 189 private final Matrix mMatrix = new Matrix(); 190 private final Camera mCamera = new Camera(); 191 private final float mTempFloat2[] = new float[2]; 192 193 enum WallpaperVerticalOffset { TOP, MIDDLE, BOTTOM }; 194 int mWallpaperWidth; 195 int mWallpaperHeight; 196 WallpaperOffsetInterpolator mWallpaperOffset; 197 boolean mUpdateWallpaperOffsetImmediately = false; 198 boolean mSyncWallpaperOffsetWithScroll = true; 199 private Runnable mDelayedResizeRunnable; 200 201 // Variables relating to the creation of user folders by hovering shortcuts over shortcuts 202 private static final int FOLDER_CREATION_TIMEOUT = 250; 203 private final Alarm mFolderCreationAlarm = new Alarm(); 204 private FolderRingAnimator mDragFolderRingAnimator = null; 205 private View mLastDragOverView = null; 206 private boolean mCreateUserFolderOnDrop = false; 207 208 // Variables relating to touch disambiguation (scrolling workspace vs. scrolling a widget) 209 private float mXDown; 210 private float mYDown; 211 final static float START_DAMPING_TOUCH_SLOP_ANGLE = (float) Math.PI / 6; 212 final static float MAX_SWIPE_ANGLE = (float) Math.PI / 3; 213 final static float TOUCH_SLOP_DAMPING_FACTOR = 4; 214 215 // These variables are used for storing the initial and final values during workspace animations 216 private float mCurrentScaleX; 217 private float mCurrentScaleY; 218 private float mCurrentRotationY; 219 private float mCurrentTranslationX; 220 private float mCurrentTranslationY; 221 private float[] mOldTranslationXs; 222 private float[] mOldTranslationYs; 223 private float[] mOldScaleXs; 224 private float[] mOldScaleYs; 225 private float[] mOldBackgroundAlphas; 226 private float[] mOldBackgroundAlphaMultipliers; 227 private float[] mOldAlphas; 228 private float[] mOldRotationYs; 229 private float[] mNewTranslationXs; 230 private float[] mNewTranslationYs; 231 private float[] mNewScaleXs; 232 private float[] mNewScaleYs; 233 private float[] mNewBackgroundAlphas; 234 private float[] mNewBackgroundAlphaMultipliers; 235 private float[] mNewAlphas; 236 private float[] mNewRotationYs; 237 private float mTransitionProgress; 238 239 /** 240 * Used to inflate the Workspace from XML. 241 * 242 * @param context The application's context. 243 * @param attrs The attributes set containing the Workspace's customization values. 244 */ 245 public Workspace(Context context, AttributeSet attrs) { 246 this(context, attrs, 0); 247 } 248 249 /** 250 * Used to inflate the Workspace from XML. 251 * 252 * @param context The application's context. 253 * @param attrs The attributes set containing the Workspace's customization values. 254 * @param defStyle Unused. 255 */ 256 public Workspace(Context context, AttributeSet attrs, int defStyle) { 257 super(context, attrs, defStyle); 258 mContentIsRefreshable = false; 259 260 // With workspace, data is available straight from the get-go 261 setDataIsReady(); 262 263 if (!LauncherApplication.isScreenLarge()) { 264 mFadeInAdjacentScreens = false; 265 } 266 267 mWallpaperManager = WallpaperManager.getInstance(context); 268 269 int cellCountX = DEFAULT_CELL_COUNT_X; 270 int cellCountY = DEFAULT_CELL_COUNT_Y; 271 272 TypedArray a = context.obtainStyledAttributes(attrs, 273 R.styleable.Workspace, defStyle, 0); 274 275 final Resources res = context.getResources(); 276 if (LauncherApplication.isScreenLarge()) { 277 // Determine number of rows/columns dynamically 278 // TODO: This code currently fails on tablets with an aspect ratio < 1.3. 279 // Around that ratio we should make cells the same size in portrait and 280 // landscape 281 TypedArray actionBarSizeTypedArray = 282 context.obtainStyledAttributes(new int[] { android.R.attr.actionBarSize }); 283 final float actionBarHeight = actionBarSizeTypedArray.getDimension(0, 0f); 284 final float systemBarHeight = res.getDimension(R.dimen.status_bar_height); 285 final float smallestScreenDim = res.getConfiguration().smallestScreenWidthDp; 286 287 cellCountX = 1; 288 while (CellLayout.widthInPortrait(res, cellCountX + 1) <= smallestScreenDim) { 289 cellCountX++; 290 } 291 292 cellCountY = 1; 293 while (actionBarHeight + CellLayout.heightInLandscape(res, cellCountY + 1) 294 <= smallestScreenDim - systemBarHeight) { 295 cellCountY++; 296 } 297 } 298 299 mSpringLoadedShrinkFactor = 300 res.getInteger(R.integer.config_workspaceSpringLoadShrinkPercentage) / 100.0f; 301 302 // if the value is manually specified, use that instead 303 cellCountX = a.getInt(R.styleable.Workspace_cellCountX, cellCountX); 304 cellCountY = a.getInt(R.styleable.Workspace_cellCountY, cellCountY); 305 mDefaultPage = a.getInt(R.styleable.Workspace_defaultScreen, 1); 306 a.recycle(); 307 308 LauncherModel.updateWorkspaceLayoutCells(cellCountX, cellCountY); 309 setHapticFeedbackEnabled(false); 310 311 initWorkspace(); 312 313 // Disable multitouch across the workspace/all apps/customize tray 314 setMotionEventSplittingEnabled(true); 315 } 316 317 public void onDragStart(DragSource source, Object info, int dragAction) { 318 mIsDragOccuring = true; 319 updateChildrenLayersEnabled(); 320 mLauncher.lockScreenOrientation(); 321 } 322 323 public void onDragEnd() { 324 mIsDragOccuring = false; 325 updateChildrenLayersEnabled(); 326 mLauncher.unlockScreenOrientation(); 327 } 328 329 /** 330 * Initializes various states for this workspace. 331 */ 332 protected void initWorkspace() { 333 Context context = getContext(); 334 mCurrentPage = mDefaultPage; 335 Launcher.setScreen(mCurrentPage); 336 LauncherApplication app = (LauncherApplication)context.getApplicationContext(); 337 mIconCache = app.getIconCache(); 338 mExternalDragOutlinePaint.setAntiAlias(true); 339 setWillNotDraw(false); 340 341 try { 342 final Resources res = getResources(); 343 mBackground = res.getDrawable(R.drawable.apps_customize_bg); 344 } catch (Resources.NotFoundException e) { 345 // In this case, we will skip drawing background protection 346 } 347 348 mUnshrinkAnimationListener = new AnimatorListenerAdapter() { 349 @Override 350 public void onAnimationStart(Animator animation) { 351 mIsSwitchingState = true; 352 } 353 354 @Override 355 public void onAnimationEnd(Animator animation) { 356 mIsSwitchingState = false; 357 mSyncWallpaperOffsetWithScroll = true; 358 mWallpaperOffset.setOverrideHorizontalCatchupConstant(false); 359 mAnimator = null; 360 updateChildrenLayersEnabled(); 361 } 362 }; 363 mShrinkAnimationListener = new AnimatorListenerAdapter() { 364 @Override 365 public void onAnimationStart(Animator animation) { 366 mIsSwitchingState = true; 367 } 368 @Override 369 public void onAnimationEnd(Animator animation) { 370 mIsSwitchingState = false; 371 mWallpaperOffset.setOverrideHorizontalCatchupConstant(false); 372 mAnimator = null; 373 } 374 }; 375 mSnapVelocity = 600; 376 mWallpaperOffset = new WallpaperOffsetInterpolator(); 377 } 378 379 @Override 380 protected int getScrollMode() { 381 return SmoothPagedView.X_LARGE_MODE; 382 } 383 384 private void onAddView(View child) { 385 if (!(child instanceof CellLayout)) { 386 throw new IllegalArgumentException("A Workspace can only have CellLayout children."); 387 } 388 CellLayout cl = ((CellLayout) child); 389 cl.setOnInterceptTouchListener(this); 390 cl.setClickable(true); 391 cl.enableHardwareLayers(); 392 } 393 394 @Override 395 public void addView(View child, int index, LayoutParams params) { 396 onAddView(child); 397 super.addView(child, index, params); 398 } 399 400 @Override 401 public void addView(View child) { 402 onAddView(child); 403 super.addView(child); 404 } 405 406 @Override 407 public void addView(View child, int index) { 408 onAddView(child); 409 super.addView(child, index); 410 } 411 412 @Override 413 public void addView(View child, int width, int height) { 414 onAddView(child); 415 super.addView(child, width, height); 416 } 417 418 @Override 419 public void addView(View child, LayoutParams params) { 420 onAddView(child); 421 super.addView(child, params); 422 } 423 424 /** 425 * @return The open folder on the current screen, or null if there is none 426 */ 427 Folder getOpenFolder() { 428 DragLayer dragLayer = mLauncher.getDragLayer(); 429 int count = dragLayer.getChildCount(); 430 for (int i = 0; i < count; i++) { 431 View child = dragLayer.getChildAt(i); 432 if (child instanceof Folder) { 433 Folder folder = (Folder) child; 434 if (folder.getInfo().opened) 435 return folder; 436 } 437 } 438 return null; 439 } 440 441 boolean isTouchActive() { 442 return mTouchState != TOUCH_STATE_REST; 443 } 444 445 /** 446 * Adds the specified child in the specified screen. The position and dimension of 447 * the child are defined by x, y, spanX and spanY. 448 * 449 * @param child The child to add in one of the workspace's screens. 450 * @param screen The screen in which to add the child. 451 * @param x The X position of the child in the screen's grid. 452 * @param y The Y position of the child in the screen's grid. 453 * @param spanX The number of cells spanned horizontally by the child. 454 * @param spanY The number of cells spanned vertically by the child. 455 */ 456 void addInScreen(View child, long container, int screen, int x, int y, int spanX, int spanY) { 457 addInScreen(child, container, screen, x, y, spanX, spanY, false); 458 } 459 460 /** 461 * Adds the specified child in the specified screen. The position and dimension of 462 * the child are defined by x, y, spanX and spanY. 463 * 464 * @param child The child to add in one of the workspace's screens. 465 * @param screen The screen in which to add the child. 466 * @param x The X position of the child in the screen's grid. 467 * @param y The Y position of the child in the screen's grid. 468 * @param spanX The number of cells spanned horizontally by the child. 469 * @param spanY The number of cells spanned vertically by the child. 470 * @param insert When true, the child is inserted at the beginning of the children list. 471 */ 472 void addInScreen(View child, long container, int screen, int x, int y, int spanX, int spanY, 473 boolean insert) { 474 if (container == LauncherSettings.Favorites.CONTAINER_DESKTOP) { 475 if (screen < 0 || screen >= getChildCount()) { 476 Log.e(TAG, "The screen must be >= 0 and < " + getChildCount() 477 + " (was " + screen + "); skipping child"); 478 return; 479 } 480 } 481 482 final CellLayout layout; 483 if (container == LauncherSettings.Favorites.CONTAINER_HOTSEAT) { 484 layout = mLauncher.getHotseat().getLayout(); 485 child.setOnKeyListener(null); 486 487 if (screen < 0) { 488 screen = mLauncher.getHotseat().getOrderInHotseat(x, y); 489 } else { 490 // Note: We do this to ensure that the hotseat is always laid out in the orientation 491 // of the hotseat in order regardless of which orientation they were added 492 x = mLauncher.getHotseat().getCellXFromOrder(screen); 493 y = mLauncher.getHotseat().getCellYFromOrder(screen); 494 } 495 } else { 496 layout = (CellLayout) getChildAt(screen); 497 child.setOnKeyListener(new BubbleTextViewKeyEventListener()); 498 } 499 500 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) child.getLayoutParams(); 501 if (lp == null) { 502 lp = new CellLayout.LayoutParams(x, y, spanX, spanY); 503 } else { 504 lp.cellX = x; 505 lp.cellY = y; 506 lp.cellHSpan = spanX; 507 lp.cellVSpan = spanY; 508 } 509 510 if (spanX < 0 && spanY < 0) { 511 lp.isLockedToGrid = false; 512 } 513 514 // Get the canonical child id to uniquely represent this view in this screen 515 int childId = LauncherModel.getCellLayoutChildId(container, screen, x, y, spanX, spanY); 516 boolean markCellsAsOccupied = !(child instanceof Folder); 517 if (!layout.addViewToCellLayout(child, insert ? 0 : -1, childId, lp, markCellsAsOccupied)) { 518 // TODO: This branch occurs when the workspace is adding views 519 // outside of the defined grid 520 // maybe we should be deleting these items from the LauncherModel? 521 Log.w(TAG, "Failed to add to item at (" + lp.cellX + "," + lp.cellY + ") to CellLayout"); 522 } 523 524 if (!(child instanceof Folder)) { 525 child.setHapticFeedbackEnabled(false); 526 child.setOnLongClickListener(mLongClickListener); 527 } 528 if (child instanceof DropTarget) { 529 mDragController.addDropTarget((DropTarget) child); 530 } 531 } 532 533 /** 534 * Check if the point (x, y) hits a given page. 535 */ 536 private boolean hitsPage(int index, float x, float y) { 537 final View page = getChildAt(index); 538 if (page != null) { 539 float[] localXY = { x, y }; 540 mapPointFromSelfToChild(page, localXY); 541 return (localXY[0] >= 0 && localXY[0] < page.getWidth() 542 && localXY[1] >= 0 && localXY[1] < page.getHeight()); 543 } 544 return false; 545 } 546 547 @Override 548 protected boolean hitsPreviousPage(float x, float y) { 549 // mNextPage is set to INVALID_PAGE whenever we are stationary. 550 // Calculating "next page" this way ensures that you scroll to whatever page you tap on 551 final int current = (mNextPage == INVALID_PAGE) ? mCurrentPage : mNextPage; 552 return hitsPage(current - 1, x, y); 553 } 554 555 @Override 556 protected boolean hitsNextPage(float x, float y) { 557 // mNextPage is set to INVALID_PAGE whenever we are stationary. 558 // Calculating "next page" this way ensures that you scroll to whatever page you tap on 559 final int current = (mNextPage == INVALID_PAGE) ? mCurrentPage : mNextPage; 560 return hitsPage(current + 1, x, y); 561 } 562 563 /** 564 * Called directly from a CellLayout (not by the framework), after we've been added as a 565 * listener via setOnInterceptTouchEventListener(). This allows us to tell the CellLayout 566 * that it should intercept touch events, which is not something that is normally supported. 567 */ 568 @Override 569 public boolean onTouch(View v, MotionEvent event) { 570 return (isSmall() || mIsSwitchingState); 571 } 572 573 public boolean isSwitchingState() { 574 return mIsSwitchingState; 575 } 576 577 protected void onWindowVisibilityChanged (int visibility) { 578 mLauncher.onWindowVisibilityChanged(visibility); 579 } 580 581 @Override 582 public boolean dispatchUnhandledMove(View focused, int direction) { 583 if (isSmall() || mIsSwitchingState) { 584 // when the home screens are shrunken, shouldn't allow side-scrolling 585 return false; 586 } 587 return super.dispatchUnhandledMove(focused, direction); 588 } 589 590 @Override 591 public boolean onInterceptTouchEvent(MotionEvent ev) { 592 if (ev.getAction() == MotionEvent.ACTION_DOWN) { 593 mXDown = ev.getX(); 594 mYDown = ev.getY(); 595 } 596 597 return super.onInterceptTouchEvent(ev); 598 } 599 600 @Override 601 protected void determineScrollingStart(MotionEvent ev) { 602 if (!isSmall() && !mIsSwitchingState) { 603 float deltaX = Math.abs(ev.getX() - mXDown); 604 float deltaY = Math.abs(ev.getY() - mYDown); 605 606 if (Float.compare(deltaX, 0f) == 0) return; 607 608 float slope = deltaY / deltaX; 609 float theta = (float) Math.atan(slope); 610 611 if (deltaX > mTouchSlop || deltaY > mTouchSlop) { 612 cancelCurrentPageLongPress(); 613 } 614 615 if (theta > MAX_SWIPE_ANGLE) { 616 // Above MAX_SWIPE_ANGLE, we don't want to ever start scrolling the workspace 617 return; 618 } else if (theta > START_DAMPING_TOUCH_SLOP_ANGLE) { 619 // Above START_DAMPING_TOUCH_SLOP_ANGLE and below MAX_SWIPE_ANGLE, we want to 620 // increase the touch slop to make it harder to begin scrolling the workspace. This 621 // results in vertically scrolling widgets to more easily. The higher the angle, the 622 // more we increase touch slop. 623 theta -= START_DAMPING_TOUCH_SLOP_ANGLE; 624 float extraRatio = (float) 625 Math.sqrt((theta / (MAX_SWIPE_ANGLE - START_DAMPING_TOUCH_SLOP_ANGLE))); 626 super.determineScrollingStart(ev, 1 + TOUCH_SLOP_DAMPING_FACTOR * extraRatio); 627 } else { 628 // Below START_DAMPING_TOUCH_SLOP_ANGLE, we don't do anything special 629 super.determineScrollingStart(ev); 630 } 631 } 632 } 633 634 @Override 635 protected boolean isScrollingIndicatorEnabled() { 636 return mState != State.SPRING_LOADED; 637 } 638 639 protected void onPageBeginMoving() { 640 super.onPageBeginMoving(); 641 642 if (isHardwareAccelerated()) { 643 updateChildrenLayersEnabled(); 644 } else { 645 if (mNextPage != INVALID_PAGE) { 646 // we're snapping to a particular screen 647 enableChildrenCache(mCurrentPage, mNextPage); 648 } else { 649 // this is when user is actively dragging a particular screen, they might 650 // swipe it either left or right (but we won't advance by more than one screen) 651 enableChildrenCache(mCurrentPage - 1, mCurrentPage + 1); 652 } 653 } 654 655 // Only show page outlines as we pan if we are on large screen 656 if (LauncherApplication.isScreenLarge()) { 657 showOutlines(); 658 } 659 } 660 661 protected void onPageEndMoving() { 662 super.onPageEndMoving(); 663 664 if (isHardwareAccelerated()) { 665 updateChildrenLayersEnabled(); 666 } else { 667 clearChildrenCache(); 668 } 669 670 // Hide the outlines, as long as we're not dragging 671 if (!mDragController.dragging()) { 672 // Only hide page outlines as we pan if we are on large screen 673 if (LauncherApplication.isScreenLarge()) { 674 hideOutlines(); 675 } 676 } 677 mOverScrollMaxBackgroundAlpha = 0.0f; 678 mOverScrollPageIndex = -1; 679 680 if (mDelayedResizeRunnable != null) { 681 mDelayedResizeRunnable.run(); 682 mDelayedResizeRunnable = null; 683 } 684 } 685 686 @Override 687 protected void notifyPageSwitchListener() { 688 super.notifyPageSwitchListener(); 689 Launcher.setScreen(mCurrentPage); 690 }; 691 692 // As a ratio of screen height, the total distance we want the parallax effect to span 693 // vertically 694 private float wallpaperTravelToScreenHeightRatio(int width, int height) { 695 return 1.1f; 696 } 697 698 // As a ratio of screen height, the total distance we want the parallax effect to span 699 // horizontally 700 private float wallpaperTravelToScreenWidthRatio(int width, int height) { 701 float aspectRatio = width / (float) height; 702 703 // At an aspect ratio of 16/10, the wallpaper parallax effect should span 1.5 * screen width 704 // At an aspect ratio of 10/16, the wallpaper parallax effect should span 1.2 * screen width 705 // We will use these two data points to extrapolate how much the wallpaper parallax effect 706 // to span (ie travel) at any aspect ratio: 707 708 final float ASPECT_RATIO_LANDSCAPE = 16/10f; 709 final float ASPECT_RATIO_PORTRAIT = 10/16f; 710 final float WALLPAPER_WIDTH_TO_SCREEN_RATIO_LANDSCAPE = 1.5f; 711 final float WALLPAPER_WIDTH_TO_SCREEN_RATIO_PORTRAIT = 1.2f; 712 713 // To find out the desired width at different aspect ratios, we use the following two 714 // formulas, where the coefficient on x is the aspect ratio (width/height): 715 // (16/10)x + y = 1.5 716 // (10/16)x + y = 1.2 717 // We solve for x and y and end up with a final formula: 718 final float x = 719 (WALLPAPER_WIDTH_TO_SCREEN_RATIO_LANDSCAPE - WALLPAPER_WIDTH_TO_SCREEN_RATIO_PORTRAIT) / 720 (ASPECT_RATIO_LANDSCAPE - ASPECT_RATIO_PORTRAIT); 721 final float y = WALLPAPER_WIDTH_TO_SCREEN_RATIO_PORTRAIT - x * ASPECT_RATIO_PORTRAIT; 722 return x * aspectRatio + y; 723 } 724 725 // The range of scroll values for Workspace 726 private int getScrollRange() { 727 return getChildOffset(getChildCount() - 1) - getChildOffset(0); 728 } 729 730 protected void setWallpaperDimension() { 731 Display display = mLauncher.getWindowManager().getDefaultDisplay(); 732 DisplayMetrics displayMetrics = new DisplayMetrics(); 733 display.getRealMetrics(displayMetrics); 734 final int maxDim = Math.max(displayMetrics.widthPixels, displayMetrics.heightPixels); 735 final int minDim = Math.min(displayMetrics.widthPixels, displayMetrics.heightPixels); 736 737 // We need to ensure that there is enough extra space in the wallpaper for the intended 738 // parallax effects 739 mWallpaperWidth = (int) (maxDim * wallpaperTravelToScreenWidthRatio(maxDim, minDim)); 740 mWallpaperHeight = (int)(maxDim * wallpaperTravelToScreenHeightRatio(maxDim, minDim)); 741 new Thread("setWallpaperDimension") { 742 public void run() { 743 mWallpaperManager.suggestDesiredDimensions(mWallpaperWidth, mWallpaperHeight); 744 } 745 }.start(); 746 } 747 748 public void setVerticalWallpaperOffset(float offset) { 749 mWallpaperOffset.setFinalY(offset); 750 } 751 public float getVerticalWallpaperOffset() { 752 return mWallpaperOffset.getCurrY(); 753 } 754 public void setHorizontalWallpaperOffset(float offset) { 755 mWallpaperOffset.setFinalX(offset); 756 } 757 public float getHorizontalWallpaperOffset() { 758 return mWallpaperOffset.getCurrX(); 759 } 760 761 private float wallpaperOffsetForCurrentScroll() { 762 Display display = mLauncher.getWindowManager().getDefaultDisplay(); 763 final boolean isStaticWallpaper = (mWallpaperManager.getWallpaperInfo() == null); 764 // The wallpaper travel width is how far, from left to right, the wallpaper will move 765 // at this orientation (for example, in portrait mode we don't move all the way to the 766 // edges of the wallpaper, or otherwise the parallax effect would be too strong) 767 int wallpaperTravelWidth = (int) (display.getWidth() * 768 wallpaperTravelToScreenWidthRatio(display.getWidth(), display.getHeight())); 769 if (!isStaticWallpaper) { 770 wallpaperTravelWidth = mWallpaperWidth; 771 } 772 773 // Set wallpaper offset steps (1 / (number of screens - 1)) 774 // We have 3 vertical offset states (centered, and then top/bottom aligned 775 // for all apps/customize) 776 mWallpaperManager.setWallpaperOffsetSteps(1.0f / (getChildCount() - 1), 1.0f / (3 - 1)); 777 778 int scrollRange = getScrollRange(); 779 float scrollProgressOffset = 0; 780 781 // Account for overscroll: you only see the absolute edge of the wallpaper if 782 // you overscroll as far as you can in landscape mode. Only do this for static wallpapers 783 // because live wallpapers (and probably 3rd party wallpaper providers) rely on the offset 784 // being even intervals from 0 to 1 (eg [0, 0.25, 0.5, 0.75, 1]) 785 if (isStaticWallpaper) { 786 int overscrollOffset = (int) (maxOverScroll() * display.getWidth()); 787 scrollProgressOffset += overscrollOffset / (float) getScrollRange(); 788 scrollRange += 2 * overscrollOffset; 789 } 790 791 float scrollProgress = 792 mScrollX / (float) scrollRange + scrollProgressOffset; 793 float offsetInDips = wallpaperTravelWidth * scrollProgress + 794 (mWallpaperWidth - wallpaperTravelWidth) / 2; // center it 795 float offset = offsetInDips / (float) mWallpaperWidth; 796 return offset; 797 } 798 private void syncWallpaperOffsetWithScroll() { 799 final boolean enableWallpaperEffects = isHardwareAccelerated(); 800 if (enableWallpaperEffects) { 801 mWallpaperOffset.setFinalX(wallpaperOffsetForCurrentScroll()); 802 } 803 } 804 805 public void updateWallpaperOffsetImmediately() { 806 mUpdateWallpaperOffsetImmediately = true; 807 } 808 809 private void updateWallpaperOffsets() { 810 boolean updateNow = false; 811 boolean keepUpdating = true; 812 if (mUpdateWallpaperOffsetImmediately) { 813 updateNow = true; 814 keepUpdating = false; 815 mWallpaperOffset.jumpToFinal(); 816 mUpdateWallpaperOffsetImmediately = false; 817 } else { 818 updateNow = keepUpdating = mWallpaperOffset.computeScrollOffset(); 819 } 820 if (updateNow) { 821 if (mWindowToken != null) { 822 mWallpaperManager.setWallpaperOffsets(mWindowToken, 823 mWallpaperOffset.getCurrX(), mWallpaperOffset.getCurrY()); 824 } 825 } 826 if (keepUpdating) { 827 fastInvalidate(); 828 } 829 } 830 831 class WallpaperOffsetInterpolator { 832 float mFinalHorizontalWallpaperOffset = 0.0f; 833 float mFinalVerticalWallpaperOffset = 0.5f; 834 float mHorizontalWallpaperOffset = 0.0f; 835 float mVerticalWallpaperOffset = 0.5f; 836 long mLastWallpaperOffsetUpdateTime; 837 boolean mIsMovingFast; 838 boolean mOverrideHorizontalCatchupConstant; 839 float mHorizontalCatchupConstant = 0.35f; 840 float mVerticalCatchupConstant = 0.35f; 841 842 public WallpaperOffsetInterpolator() { 843 } 844 845 public void setOverrideHorizontalCatchupConstant(boolean override) { 846 mOverrideHorizontalCatchupConstant = override; 847 } 848 849 public void setHorizontalCatchupConstant(float f) { 850 mHorizontalCatchupConstant = f; 851 } 852 853 public void setVerticalCatchupConstant(float f) { 854 mVerticalCatchupConstant = f; 855 } 856 857 public boolean computeScrollOffset() { 858 if (Float.compare(mHorizontalWallpaperOffset, mFinalHorizontalWallpaperOffset) == 0 && 859 Float.compare(mVerticalWallpaperOffset, mFinalVerticalWallpaperOffset) == 0) { 860 mIsMovingFast = false; 861 return false; 862 } 863 Display display = mLauncher.getWindowManager().getDefaultDisplay(); 864 boolean isLandscape = display.getWidth() > display.getHeight(); 865 866 long currentTime = System.currentTimeMillis(); 867 long timeSinceLastUpdate = currentTime - mLastWallpaperOffsetUpdateTime; 868 timeSinceLastUpdate = Math.min((long) (1000/30f), timeSinceLastUpdate); 869 timeSinceLastUpdate = Math.max(1L, timeSinceLastUpdate); 870 871 float xdiff = Math.abs(mFinalHorizontalWallpaperOffset - mHorizontalWallpaperOffset); 872 if (!mIsMovingFast && xdiff > 0.07) { 873 mIsMovingFast = true; 874 } 875 876 float fractionToCatchUpIn1MsHorizontal; 877 if (mOverrideHorizontalCatchupConstant) { 878 fractionToCatchUpIn1MsHorizontal = mHorizontalCatchupConstant; 879 } else if (mIsMovingFast) { 880 fractionToCatchUpIn1MsHorizontal = isLandscape ? 0.5f : 0.75f; 881 } else { 882 // slow 883 fractionToCatchUpIn1MsHorizontal = isLandscape ? 0.27f : 0.5f; 884 } 885 float fractionToCatchUpIn1MsVertical = mVerticalCatchupConstant; 886 887 fractionToCatchUpIn1MsHorizontal /= 33f; 888 fractionToCatchUpIn1MsVertical /= 33f; 889 890 final float UPDATE_THRESHOLD = 0.00001f; 891 float hOffsetDelta = mFinalHorizontalWallpaperOffset - mHorizontalWallpaperOffset; 892 float vOffsetDelta = mFinalVerticalWallpaperOffset - mVerticalWallpaperOffset; 893 boolean jumpToFinalValue = Math.abs(hOffsetDelta) < UPDATE_THRESHOLD && 894 Math.abs(vOffsetDelta) < UPDATE_THRESHOLD; 895 if (jumpToFinalValue) { 896 mHorizontalWallpaperOffset = mFinalHorizontalWallpaperOffset; 897 mVerticalWallpaperOffset = mFinalVerticalWallpaperOffset; 898 } else { 899 float percentToCatchUpVertical = 900 Math.min(1.0f, timeSinceLastUpdate * fractionToCatchUpIn1MsVertical); 901 float percentToCatchUpHorizontal = 902 Math.min(1.0f, timeSinceLastUpdate * fractionToCatchUpIn1MsHorizontal); 903 mHorizontalWallpaperOffset += percentToCatchUpHorizontal * hOffsetDelta; 904 mVerticalWallpaperOffset += percentToCatchUpVertical * vOffsetDelta; 905 } 906 907 mLastWallpaperOffsetUpdateTime = System.currentTimeMillis(); 908 return true; 909 } 910 911 public float getCurrX() { 912 return mHorizontalWallpaperOffset; 913 } 914 915 public float getFinalX() { 916 return mFinalHorizontalWallpaperOffset; 917 } 918 919 public float getCurrY() { 920 return mVerticalWallpaperOffset; 921 } 922 923 public float getFinalY() { 924 return mFinalVerticalWallpaperOffset; 925 } 926 927 public void setFinalX(float x) { 928 mFinalHorizontalWallpaperOffset = Math.max(0f, Math.min(x, 1.0f)); 929 } 930 931 public void setFinalY(float y) { 932 mFinalVerticalWallpaperOffset = Math.max(0f, Math.min(y, 1.0f)); 933 } 934 935 public void jumpToFinal() { 936 mHorizontalWallpaperOffset = mFinalHorizontalWallpaperOffset; 937 mVerticalWallpaperOffset = mFinalVerticalWallpaperOffset; 938 } 939 } 940 941 @Override 942 public void computeScroll() { 943 super.computeScroll(); 944 if (mSyncWallpaperOffsetWithScroll) { 945 syncWallpaperOffsetWithScroll(); 946 } 947 } 948 949 void showOutlines() { 950 if (!isSmall() && !mIsSwitchingState) { 951 if (mChildrenOutlineFadeOutAnimation != null) mChildrenOutlineFadeOutAnimation.cancel(); 952 if (mChildrenOutlineFadeInAnimation != null) mChildrenOutlineFadeInAnimation.cancel(); 953 mChildrenOutlineFadeInAnimation = ObjectAnimator.ofFloat(this, "childrenOutlineAlpha", 1.0f); 954 mChildrenOutlineFadeInAnimation.setDuration(CHILDREN_OUTLINE_FADE_IN_DURATION); 955 mChildrenOutlineFadeInAnimation.start(); 956 } 957 } 958 959 void hideOutlines() { 960 if (!isSmall() && !mIsSwitchingState) { 961 if (mChildrenOutlineFadeInAnimation != null) mChildrenOutlineFadeInAnimation.cancel(); 962 if (mChildrenOutlineFadeOutAnimation != null) mChildrenOutlineFadeOutAnimation.cancel(); 963 mChildrenOutlineFadeOutAnimation = ObjectAnimator.ofFloat(this, "childrenOutlineAlpha", 0.0f); 964 mChildrenOutlineFadeOutAnimation.setDuration(CHILDREN_OUTLINE_FADE_OUT_DURATION); 965 mChildrenOutlineFadeOutAnimation.setStartDelay(CHILDREN_OUTLINE_FADE_OUT_DELAY); 966 mChildrenOutlineFadeOutAnimation.start(); 967 } 968 } 969 970 public void showOutlinesTemporarily() { 971 if (!mIsPageMoving && !isTouchActive()) { 972 snapToPage(mCurrentPage); 973 } 974 } 975 976 public void setChildrenOutlineAlpha(float alpha) { 977 mChildrenOutlineAlpha = alpha; 978 for (int i = 0; i < getChildCount(); i++) { 979 CellLayout cl = (CellLayout) getChildAt(i); 980 cl.setBackgroundAlpha(alpha); 981 } 982 } 983 984 public float getChildrenOutlineAlpha() { 985 return mChildrenOutlineAlpha; 986 } 987 988 void disableBackground() { 989 mDrawBackground = false; 990 } 991 void enableBackground() { 992 mDrawBackground = true; 993 } 994 995 private void showBackgroundGradientForAllApps(boolean animated) { 996 showBackgroundGradient(animated); 997 } 998 999 private void showBackgroundGradient(boolean animated) { 1000 if (mBackground == null) return; 1001 if (mBackgroundFadeOutAnimation != null) { 1002 mBackgroundFadeOutAnimation.cancel(); 1003 mBackgroundFadeOutAnimation = null; 1004 } 1005 if (mBackgroundFadeInAnimation != null) { 1006 mBackgroundFadeInAnimation.cancel(); 1007 mBackgroundFadeInAnimation = null; 1008 } 1009 final float finalAlpha = 1f; 1010 if (animated) { 1011 mBackgroundFadeInAnimation = ValueAnimator.ofFloat(getBackgroundAlpha(), finalAlpha); 1012 mBackgroundFadeInAnimation.addUpdateListener(new AnimatorUpdateListener() { 1013 public void onAnimationUpdate(ValueAnimator animation) { 1014 setBackgroundAlpha(((Float) animation.getAnimatedValue()).floatValue()); 1015 } 1016 }); 1017 mBackgroundFadeInAnimation.setInterpolator(new DecelerateInterpolator(1.5f)); 1018 mBackgroundFadeInAnimation.setDuration(BACKGROUND_FADE_IN_DURATION); 1019 mBackgroundFadeInAnimation.start(); 1020 } else { 1021 setBackgroundAlpha(finalAlpha); 1022 } 1023 } 1024 1025 private void hideBackgroundGradient(float finalAlpha, boolean animated) { 1026 if (mBackground == null) return; 1027 if (mBackgroundFadeInAnimation != null) { 1028 mBackgroundFadeInAnimation.cancel(); 1029 mBackgroundFadeInAnimation = null; 1030 } 1031 if (mBackgroundFadeOutAnimation != null) { 1032 mBackgroundFadeOutAnimation.cancel(); 1033 mBackgroundFadeOutAnimation = null; 1034 } 1035 if (animated) { 1036 mBackgroundFadeOutAnimation = ValueAnimator.ofFloat(getBackgroundAlpha(), finalAlpha); 1037 mBackgroundFadeOutAnimation.addUpdateListener(new AnimatorUpdateListener() { 1038 public void onAnimationUpdate(ValueAnimator animation) { 1039 setBackgroundAlpha(((Float) animation.getAnimatedValue()).floatValue()); 1040 } 1041 }); 1042 mBackgroundFadeOutAnimation.setInterpolator(new DecelerateInterpolator(1.5f)); 1043 mBackgroundFadeOutAnimation.setDuration(BACKGROUND_FADE_OUT_DURATION); 1044 mBackgroundFadeOutAnimation.start(); 1045 } else { 1046 setBackgroundAlpha(finalAlpha); 1047 } 1048 } 1049 1050 public void setBackgroundAlpha(float alpha) { 1051 if (alpha != mBackgroundAlpha) { 1052 mBackgroundAlpha = alpha; 1053 invalidate(); 1054 } 1055 } 1056 1057 public float getBackgroundAlpha() { 1058 return mBackgroundAlpha; 1059 } 1060 1061 /** 1062 * Due to 3D transformations, if two CellLayouts are theoretically touching each other, 1063 * on the xy plane, when one is rotated along the y-axis, the gap between them is perceived 1064 * as being larger. This method computes what offset the rotated view should be translated 1065 * in order to minimize this perceived gap. 1066 * @param degrees Angle of the view 1067 * @param width Width of the view 1068 * @param height Height of the view 1069 * @return Offset to be used in a View.setTranslationX() call 1070 */ 1071 private float getOffsetXForRotation(float degrees, int width, int height) { 1072 mMatrix.reset(); 1073 mCamera.save(); 1074 mCamera.rotateY(Math.abs(degrees)); 1075 mCamera.getMatrix(mMatrix); 1076 mCamera.restore(); 1077 1078 mMatrix.preTranslate(-width * 0.5f, -height * 0.5f); 1079 mMatrix.postTranslate(width * 0.5f, height * 0.5f); 1080 mTempFloat2[0] = width; 1081 mTempFloat2[1] = height; 1082 mMatrix.mapPoints(mTempFloat2); 1083 return (width - mTempFloat2[0]) * (degrees > 0.0f ? 1.0f : -1.0f); 1084 } 1085 1086 float backgroundAlphaInterpolator(float r) { 1087 float pivotA = 0.1f; 1088 float pivotB = 0.4f; 1089 if (r < pivotA) { 1090 return 0; 1091 } else if (r > pivotB) { 1092 return 1.0f; 1093 } else { 1094 return (r - pivotA)/(pivotB - pivotA); 1095 } 1096 } 1097 1098 float overScrollBackgroundAlphaInterpolator(float r) { 1099 float threshold = 0.08f; 1100 1101 if (r > mOverScrollMaxBackgroundAlpha) { 1102 mOverScrollMaxBackgroundAlpha = r; 1103 } else if (r < mOverScrollMaxBackgroundAlpha) { 1104 r = mOverScrollMaxBackgroundAlpha; 1105 } 1106 1107 return Math.min(r / threshold, 1.0f); 1108 } 1109 1110 @Override 1111 protected void screenScrolled(int screenCenter) { 1112 super.screenScrolled(screenCenter); 1113 1114 // If the screen is not xlarge, then don't rotate the CellLayouts 1115 // NOTE: If we don't update the side pages alpha, then we should not hide the side pages. 1116 // see unshrink(). 1117 if (!LauncherApplication.isScreenLarge()) return; 1118 1119 final int halfScreenSize = getMeasuredWidth() / 2; 1120 1121 for (int i = 0; i < getChildCount(); i++) { 1122 CellLayout cl = (CellLayout) getChildAt(i); 1123 if (cl != null) { 1124 int totalDistance = getScaledMeasuredWidth(cl) + mPageSpacing; 1125 int delta = screenCenter - (getChildOffset(i) - 1126 getRelativeChildOffset(i) + halfScreenSize); 1127 1128 float scrollProgress = delta / (totalDistance * 1.0f); 1129 scrollProgress = Math.min(scrollProgress, 1.0f); 1130 scrollProgress = Math.max(scrollProgress, -1.0f); 1131 1132 // If the current page (i) is being overscrolled, we use a different 1133 // set of rules for setting the background alpha multiplier. 1134 if ((mScrollX < 0 && i == 0) || (mScrollX > mMaxScrollX && 1135 i == getChildCount() -1 )) { 1136 cl.setBackgroundAlphaMultiplier( 1137 overScrollBackgroundAlphaInterpolator(Math.abs(scrollProgress))); 1138 mOverScrollPageIndex = i; 1139 } else if (mOverScrollPageIndex != i) { 1140 cl.setBackgroundAlphaMultiplier( 1141 backgroundAlphaInterpolator(Math.abs(scrollProgress))); 1142 } 1143 1144 float rotation = WORKSPACE_ROTATION * scrollProgress; 1145 float translationX = getOffsetXForRotation(rotation, cl.getWidth(), cl.getHeight()); 1146 cl.setTranslationX(translationX); 1147 1148 cl.setRotationY(rotation); 1149 } 1150 } 1151 } 1152 1153 protected void onAttachedToWindow() { 1154 super.onAttachedToWindow(); 1155 mWindowToken = getWindowToken(); 1156 computeScroll(); 1157 mDragController.setWindowToken(mWindowToken); 1158 } 1159 1160 protected void onDetachedFromWindow() { 1161 mWindowToken = null; 1162 } 1163 1164 @Override 1165 protected void onLayout(boolean changed, int left, int top, int right, int bottom) { 1166 if (mFirstLayout && mCurrentPage >= 0 && mCurrentPage < getChildCount()) { 1167 mUpdateWallpaperOffsetImmediately = true; 1168 } 1169 super.onLayout(changed, left, top, right, bottom); 1170 1171 // if shrinkToBottom() is called on initialization, it has to be deferred 1172 // until after the first call to onLayout so that it has the correct width 1173 if (mSwitchStateAfterFirstLayout) { 1174 mSwitchStateAfterFirstLayout = false; 1175 // shrink can trigger a synchronous onLayout call, so we 1176 // post this to avoid a stack overflow / tangled onLayout calls 1177 post(new Runnable() { 1178 public void run() { 1179 shrink(mStateAfterFirstLayout, false); 1180 } 1181 }); 1182 } 1183 } 1184 1185 @Override 1186 protected void onDraw(Canvas canvas) { 1187 updateWallpaperOffsets(); 1188 1189 // Draw the background gradient if necessary 1190 if (mBackground != null && mBackgroundAlpha > 0.0f && mDrawBackground) { 1191 int alpha = (int) (mBackgroundAlpha * 255); 1192 mBackground.setAlpha(alpha); 1193 mBackground.setBounds(mScrollX, 0, mScrollX + getMeasuredWidth(), 1194 getMeasuredHeight()); 1195 mBackground.draw(canvas); 1196 } 1197 1198 super.onDraw(canvas); 1199 } 1200 1201 @Override 1202 protected void dispatchDraw(Canvas canvas) { 1203 super.dispatchDraw(canvas); 1204 1205 if (mInScrollArea && !LauncherApplication.isScreenLarge()) { 1206 final int width = getWidth(); 1207 final int height = getHeight(); 1208 final int pageHeight = getChildAt(0).getHeight(); 1209 1210 // This determines the height of the glowing edge: 90% of the page height 1211 final int padding = (int) ((height - pageHeight) * 0.5f + pageHeight * 0.1f); 1212 1213 final CellLayout leftPage = (CellLayout) getChildAt(mCurrentPage - 1); 1214 final CellLayout rightPage = (CellLayout) getChildAt(mCurrentPage + 1); 1215 1216 if (leftPage != null && leftPage.getIsDragOverlapping()) { 1217 final Drawable d = getResources().getDrawable(R.drawable.page_hover_left_holo); 1218 d.setBounds(mScrollX, padding, mScrollX + d.getIntrinsicWidth(), height - padding); 1219 d.draw(canvas); 1220 } else if (rightPage != null && rightPage.getIsDragOverlapping()) { 1221 final Drawable d = getResources().getDrawable(R.drawable.page_hover_right_holo); 1222 d.setBounds(mScrollX + width - d.getIntrinsicWidth(), padding, mScrollX + width, height - padding); 1223 d.draw(canvas); 1224 } 1225 } 1226 } 1227 1228 @Override 1229 protected boolean onRequestFocusInDescendants(int direction, Rect previouslyFocusedRect) { 1230 if (!mLauncher.isAllAppsVisible()) { 1231 final Folder openFolder = getOpenFolder(); 1232 if (openFolder != null) { 1233 return openFolder.requestFocus(direction, previouslyFocusedRect); 1234 } else { 1235 return super.onRequestFocusInDescendants(direction, previouslyFocusedRect); 1236 } 1237 } 1238 return false; 1239 } 1240 1241 @Override 1242 public int getDescendantFocusability() { 1243 if (isSmall()) { 1244 return ViewGroup.FOCUS_BLOCK_DESCENDANTS; 1245 } 1246 return super.getDescendantFocusability(); 1247 } 1248 1249 @Override 1250 public void addFocusables(ArrayList<View> views, int direction, int focusableMode) { 1251 if (!mLauncher.isAllAppsVisible()) { 1252 final Folder openFolder = getOpenFolder(); 1253 if (openFolder != null) { 1254 openFolder.addFocusables(views, direction); 1255 } else { 1256 super.addFocusables(views, direction, focusableMode); 1257 } 1258 } 1259 } 1260 1261 public boolean isSmall() { 1262 return mState == State.SMALL || mState == State.SPRING_LOADED; 1263 } 1264 1265 void enableChildrenCache(int fromPage, int toPage) { 1266 if (fromPage > toPage) { 1267 final int temp = fromPage; 1268 fromPage = toPage; 1269 toPage = temp; 1270 } 1271 1272 final int screenCount = getChildCount(); 1273 1274 fromPage = Math.max(fromPage, 0); 1275 toPage = Math.min(toPage, screenCount - 1); 1276 1277 for (int i = fromPage; i <= toPage; i++) { 1278 final CellLayout layout = (CellLayout) getChildAt(i); 1279 layout.setChildrenDrawnWithCacheEnabled(true); 1280 layout.setChildrenDrawingCacheEnabled(true); 1281 } 1282 } 1283 1284 void clearChildrenCache() { 1285 final int screenCount = getChildCount(); 1286 for (int i = 0; i < screenCount; i++) { 1287 final CellLayout layout = (CellLayout) getChildAt(i); 1288 layout.setChildrenDrawnWithCacheEnabled(false); 1289 } 1290 } 1291 1292 private void updateChildrenLayersEnabled() { 1293 boolean small = 1294 isSmall() || mIsSwitchingState || mState == State.SPRING_LOADED; 1295 boolean dragging = mAnimatingViewIntoPlace || mIsDragOccuring; 1296 boolean enableChildrenLayers = small || dragging || isPageMoving(); 1297 1298 if (enableChildrenLayers != mChildrenLayersEnabled) { 1299 mChildrenLayersEnabled = enableChildrenLayers; 1300 for (int i = 0; i < getPageCount(); i++) { 1301 ((ViewGroup)getChildAt(i)).setChildrenLayersEnabled(enableChildrenLayers); 1302 } 1303 } 1304 } 1305 1306 @Override 1307 protected void onWallpaperTap(MotionEvent ev) { 1308 final int[] position = mTempCell; 1309 getLocationOnScreen(position); 1310 1311 int pointerIndex = ev.getActionIndex(); 1312 position[0] += (int) ev.getX(pointerIndex); 1313 position[1] += (int) ev.getY(pointerIndex); 1314 1315 mWallpaperManager.sendWallpaperCommand(getWindowToken(), 1316 ev.getAction() == MotionEvent.ACTION_UP 1317 ? WallpaperManager.COMMAND_TAP : WallpaperManager.COMMAND_SECONDARY_TAP, 1318 position[0], position[1], 0, null); 1319 } 1320 1321 private float getYScaleForScreen(int screen) { 1322 int x = Math.abs(screen - 2); 1323 1324 // TODO: This should be generalized for use with arbitrary rotation angles. 1325 switch(x) { 1326 case 0: return EXTRA_SCALE_FACTOR_0; 1327 case 1: return EXTRA_SCALE_FACTOR_1; 1328 case 2: return EXTRA_SCALE_FACTOR_2; 1329 } 1330 return 1.0f; 1331 } 1332 1333 public void shrink(State shrinkState) { 1334 shrink(shrinkState, true); 1335 } 1336 1337 // we use this to shrink the workspace for the all apps view and the customize view 1338 public void shrink(State shrinkState, boolean animated) { 1339 if (mFirstLayout) { 1340 // (mFirstLayout == "first layout has not happened yet") 1341 // if we get a call to shrink() as part of our initialization (for example, if 1342 // Launcher is started in All Apps mode) then we need to wait for a layout call 1343 // to get our width so we can layout the mini-screen views correctly 1344 mSwitchStateAfterFirstLayout = true; 1345 mStateAfterFirstLayout = shrinkState; 1346 return; 1347 } 1348 1349 // Stop any scrolling, move to the current page right away 1350 setCurrentPage((mNextPage != INVALID_PAGE) ? mNextPage : mCurrentPage); 1351 1352 CellLayout currentPage = (CellLayout) getChildAt(mCurrentPage); 1353 if (currentPage == null) { 1354 Log.w(TAG, "currentPage is NULL! mCurrentPage " + mCurrentPage 1355 + " mNextPage " + mNextPage); 1356 return; 1357 } 1358 if (currentPage.getBackgroundAlphaMultiplier() < 1.0f) { 1359 currentPage.setBackgroundAlpha(0.0f); 1360 } 1361 currentPage.setBackgroundAlphaMultiplier(1.0f); 1362 1363 mState = shrinkState; 1364 updateChildrenLayersEnabled(); 1365 1366 // we intercept and reject all touch events when we're small, so be sure to reset the state 1367 mTouchState = TOUCH_STATE_REST; 1368 mActivePointerId = INVALID_POINTER; 1369 1370 final Resources res = getResources(); 1371 final int screenWidth = getWidth(); 1372 final int screenHeight = getHeight(); 1373 1374 // How much the workspace shrinks when we enter all apps or customization mode 1375 final float shrinkFactor = res.getInteger(R.integer.config_workspaceShrinkPercent) / 100.0f; 1376 1377 // Making the assumption that all pages have the same width as the 0th 1378 final int pageWidth = getChildAt(0).getMeasuredWidth(); 1379 final int pageHeight = getChildAt(0).getMeasuredHeight(); 1380 1381 final int scaledPageWidth = (int) (shrinkFactor * pageWidth); 1382 final int scaledPageHeight = (int) (shrinkFactor * pageHeight); 1383 final float extraScaledSpacing = res.getDimension(R.dimen.smallScreenExtraSpacing); 1384 1385 final int screenCount = getChildCount(); 1386 float totalWidth = screenCount * scaledPageWidth + (screenCount - 1) * extraScaledSpacing; 1387 1388 // We shrink and disappear to nothing 1389 boolean isPortrait = getMeasuredHeight() > getMeasuredWidth(); 1390 float y = screenHeight - scaledPageHeight - (isPortrait ? 1391 getResources().getDimension(R.dimen.allAppsSmallScreenVerticalMarginPortrait) : 1392 getResources().getDimension(R.dimen.allAppsSmallScreenVerticalMarginLandscape)); 1393 float finalAlpha = 0.0f; 1394 1395 int duration = res.getInteger(R.integer.config_appsCustomizeWorkspaceShrinkTime); 1396 1397 // We animate all the screens to the centered position in workspace 1398 // At the same time, the screens become greyed/dimmed 1399 1400 // newX is initialized to the left-most position of the centered screens 1401 float x = mScroller.getFinalX() + screenWidth / 2 - totalWidth / 2; 1402 1403 // We are going to scale about the center of the view, so we need to adjust the positions 1404 // of the views accordingly 1405 x -= (pageWidth - scaledPageWidth) / 2.0f; 1406 y -= (pageHeight - scaledPageHeight) / 2.0f; 1407 1408 if (mAnimator != null) { 1409 mAnimator.cancel(); 1410 } 1411 1412 mAnimator = new AnimatorSet(); 1413 // Workaround the AnimatorSet cancel bug... 1414 mUnshrinkAnimationEnabled = false; 1415 mShrinkAnimationEnabled = true; 1416 1417 initAnimationArrays(); 1418 1419 for (int i = 0; i < screenCount; i++) { 1420 final CellLayout cl = (CellLayout) getChildAt(i); 1421 1422 float rotation = (-i + 2) * WORKSPACE_ROTATION; 1423 float rotationScaleX = (float) (1.0f / Math.cos(Math.PI * rotation / 180.0f)); 1424 float rotationScaleY = getYScaleForScreen(i); 1425 1426 mOldAlphas[i] = cl.getAlpha(); 1427 mNewAlphas[i] = finalAlpha; 1428 if (animated && (mOldAlphas[i] != 0f || mNewAlphas[i] != 0f)) { 1429 // if the CellLayout will be visible during the animation, force building its 1430 // hardware layer immediately so we don't see a blip later in the animation 1431 cl.buildChildrenLayer(); 1432 } 1433 if (animated) { 1434 mOldTranslationXs[i] = cl.getX(); 1435 mOldTranslationYs[i] = cl.getY(); 1436 mOldScaleXs[i] = cl.getScaleX(); 1437 mOldScaleYs[i] = cl.getScaleY(); 1438 mOldBackgroundAlphas[i] = cl.getBackgroundAlpha(); 1439 mOldRotationYs[i] = cl.getRotationY(); 1440 mNewTranslationXs[i] = x; 1441 mNewTranslationYs[i] = y; 1442 mNewScaleXs[i] = shrinkFactor * rotationScaleX; 1443 mNewScaleYs[i] = shrinkFactor * rotationScaleY; 1444 mNewBackgroundAlphas[i] = finalAlpha; 1445 mNewRotationYs[i] = rotation; 1446 } else { 1447 cl.setX((int)x); 1448 cl.setY((int)y); 1449 cl.setScaleX(shrinkFactor * rotationScaleX); 1450 cl.setScaleY(shrinkFactor * rotationScaleY); 1451 cl.setBackgroundAlpha(finalAlpha); 1452 cl.setFastAlpha(finalAlpha); 1453 cl.setRotationY(rotation); 1454 mShrinkAnimationListener.onAnimationEnd(null); 1455 } 1456 // increment newX for the next screen 1457 x += scaledPageWidth + extraScaledSpacing; 1458 } 1459 1460 float wallpaperOffset = 0.5f; 1461 Display display = mLauncher.getWindowManager().getDefaultDisplay(); 1462 int wallpaperTravelHeight = (int) (display.getHeight() * 1463 wallpaperTravelToScreenHeightRatio(display.getWidth(), display.getHeight())); 1464 float offsetFromCenter = (wallpaperTravelHeight / (float) mWallpaperHeight) / 2f; 1465 boolean isLandscape = display.getWidth() > display.getHeight(); 1466 1467 // on phones, don't scroll the wallpaper horizontally or vertically when switching 1468 // to/from all apps 1469 final boolean enableWallpaperEffects = 1470 isHardwareAccelerated() && LauncherApplication.isScreenLarge(); 1471 if (enableWallpaperEffects) { 1472 switch (shrinkState) { 1473 // animating in 1474 case SPRING_LOADED: 1475 wallpaperOffset = 0.5f; 1476 mWallpaperOffset.setVerticalCatchupConstant(isLandscape ? 0.34f : 0.32f); 1477 break; 1478 case SMALL: 1479 // allapps 1480 wallpaperOffset = 0.5f - offsetFromCenter; 1481 mWallpaperOffset.setVerticalCatchupConstant(isLandscape ? 0.34f : 0.32f); 1482 break; 1483 } 1484 } 1485 1486 setLayoutScale(1.0f); 1487 if (animated) { 1488 if (enableWallpaperEffects) { 1489 mWallpaperOffset.setHorizontalCatchupConstant(0.46f); 1490 mWallpaperOffset.setOverrideHorizontalCatchupConstant(true); 1491 } 1492 1493 mSyncWallpaperOffsetWithScroll = false; 1494 1495 ValueAnimator animWithInterpolator = 1496 ValueAnimator.ofFloat(0f, 1f).setDuration(duration); 1497 animWithInterpolator.setInterpolator(mZoomOutInterpolator); 1498 1499 final float oldHorizontalWallpaperOffset = getHorizontalWallpaperOffset(); 1500 final float oldVerticalWallpaperOffset = getVerticalWallpaperOffset(); 1501 final float newHorizontalWallpaperOffset = 0.5f; 1502 final float newVerticalWallpaperOffset = wallpaperOffset; 1503 animWithInterpolator.addUpdateListener(new LauncherAnimatorUpdateListener() { 1504 public void onAnimationUpdate(float a, float b) { 1505 if (!mShrinkAnimationEnabled) return; 1506 mTransitionProgress = b; 1507 if (b == 0f) { 1508 // an optimization, and required for correct behavior. 1509 return; 1510 } 1511 invalidate(); 1512 if (enableWallpaperEffects) { 1513 setHorizontalWallpaperOffset( 1514 a * oldHorizontalWallpaperOffset + b * newHorizontalWallpaperOffset); 1515 setVerticalWallpaperOffset( 1516 a * oldVerticalWallpaperOffset + b * newVerticalWallpaperOffset); 1517 } 1518 for (int i = 0; i < screenCount; i++) { 1519 final CellLayout cl = (CellLayout) getChildAt(i); 1520 cl.fastInvalidate(); 1521 cl.setFastX(a * mOldTranslationXs[i] + b * mNewTranslationXs[i]); 1522 cl.setFastY(a * mOldTranslationYs[i] + b * mNewTranslationYs[i]); 1523 cl.setFastScaleX(a * mOldScaleXs[i] + b * mNewScaleXs[i]); 1524 cl.setFastScaleY(a * mOldScaleYs[i] + b * mNewScaleYs[i]); 1525 cl.setFastBackgroundAlpha( 1526 a * mOldBackgroundAlphas[i] + b * mNewBackgroundAlphas[i]); 1527 cl.setFastAlpha(a * mOldAlphas[i] + b * mNewAlphas[i]); 1528 cl.setFastRotationY(a * mOldRotationYs[i] + b * mNewRotationYs[i]); 1529 } 1530 } 1531 }); 1532 mAnimator.playTogether(animWithInterpolator); 1533 mAnimator.addListener(mShrinkAnimationListener); 1534 mAnimator.start(); 1535 } else if (enableWallpaperEffects) { 1536 setVerticalWallpaperOffset(wallpaperOffset); 1537 setHorizontalWallpaperOffset(0.5f); 1538 updateWallpaperOffsetImmediately(); 1539 } 1540 setChildrenDrawnWithCacheEnabled(true); 1541 1542 showBackgroundGradientForAllApps(animated); 1543 } 1544 1545 @Override 1546 protected void updateAdjacentPagesAlpha() { 1547 if (!isSmall()) { 1548 super.updateAdjacentPagesAlpha(); 1549 } 1550 } 1551 1552 /* 1553 * This interpolator emulates the rate at which the perceived scale of an object changes 1554 * as its distance from a camera increases. When this interpolator is applied to a scale 1555 * animation on a view, it evokes the sense that the object is shrinking due to moving away 1556 * from the camera. 1557 */ 1558 static class ZInterpolator implements TimeInterpolator { 1559 private float focalLength; 1560 1561 public ZInterpolator(float foc) { 1562 focalLength = foc; 1563 } 1564 1565 public float getInterpolation(float input) { 1566 return (1.0f - focalLength / (focalLength + input)) / 1567 (1.0f - focalLength / (focalLength + 1.0f)); 1568 } 1569 } 1570 1571 /* 1572 * The exact reverse of ZInterpolator. 1573 */ 1574 static class InverseZInterpolator implements TimeInterpolator { 1575 private ZInterpolator zInterpolator; 1576 public InverseZInterpolator(float foc) { 1577 zInterpolator = new ZInterpolator(foc); 1578 } 1579 public float getInterpolation(float input) { 1580 return 1 - zInterpolator.getInterpolation(1 - input); 1581 } 1582 } 1583 1584 /* 1585 * ZInterpolator compounded with an ease-out. 1586 */ 1587 static class ZoomOutInterpolator implements TimeInterpolator { 1588 private final ZInterpolator zInterpolator = new ZInterpolator(0.2f); 1589 private final DecelerateInterpolator decelerate = new DecelerateInterpolator(1.8f); 1590 1591 public float getInterpolation(float input) { 1592 return decelerate.getInterpolation(zInterpolator.getInterpolation(input)); 1593 } 1594 } 1595 1596 /* 1597 * InvereZInterpolator compounded with an ease-out. 1598 */ 1599 static class ZoomInInterpolator implements TimeInterpolator { 1600 private final InverseZInterpolator inverseZInterpolator = new InverseZInterpolator(0.35f); 1601 private final DecelerateInterpolator decelerate = new DecelerateInterpolator(3.0f); 1602 1603 public float getInterpolation(float input) { 1604 return decelerate.getInterpolation(inverseZInterpolator.getInterpolation(input)); 1605 } 1606 } 1607 1608 private final ZoomOutInterpolator mZoomOutInterpolator = new ZoomOutInterpolator(); 1609 private final ZoomInInterpolator mZoomInInterpolator = new ZoomInInterpolator(); 1610 1611 /* 1612 * 1613 * We call these methods (onDragStartedWithItemSpans/onDragStartedWithSize) whenever we 1614 * start a drag in Launcher, regardless of whether the drag has ever entered the Workspace 1615 * 1616 * These methods mark the appropriate pages as accepting drops (which alters their visual 1617 * appearance). 1618 * 1619 */ 1620 public void onDragStartedWithItem(View v) { 1621 final Canvas canvas = new Canvas(); 1622 1623 // We need to add extra padding to the bitmap to make room for the glow effect 1624 final int bitmapPadding = HolographicOutlineHelper.MAX_OUTER_BLUR_RADIUS; 1625 1626 // The outline is used to visualize where the item will land if dropped 1627 mDragOutline = createDragOutline(v, canvas, bitmapPadding); 1628 } 1629 1630 public void onDragStartedWithItemSpans(int spanX, int spanY, Bitmap b) { 1631 final Canvas canvas = new Canvas(); 1632 1633 // We need to add extra padding to the bitmap to make room for the glow effect 1634 final int bitmapPadding = HolographicOutlineHelper.MAX_OUTER_BLUR_RADIUS; 1635 1636 CellLayout cl = (CellLayout) getChildAt(0); 1637 1638 int[] size = cl.cellSpansToSize(spanX, spanY); 1639 1640 // The outline is used to visualize where the item will land if dropped 1641 mDragOutline = createDragOutline(b, canvas, bitmapPadding, size[0], size[1]); 1642 } 1643 1644 // we call this method whenever a drag and drop in Launcher finishes, even if Workspace was 1645 // never dragged over 1646 public void onDragStopped(boolean success) { 1647 // In the success case, DragController has already called onDragExit() 1648 if (!success) { 1649 doDragExit(null); 1650 } 1651 } 1652 1653 // We call this when we trigger an unshrink by clicking on the CellLayout cl 1654 public void unshrink(CellLayout clThatWasClicked) { 1655 unshrink(clThatWasClicked, false); 1656 } 1657 1658 public void unshrink(CellLayout clThatWasClicked, boolean springLoaded) { 1659 int newCurrentPage = indexOfChild(clThatWasClicked); 1660 if (isSmall()) { 1661 if (springLoaded) { 1662 setLayoutScale(mSpringLoadedShrinkFactor); 1663 } 1664 scrollToNewPageWithoutMovingPages(newCurrentPage); 1665 unshrink(true, springLoaded); 1666 } 1667 } 1668 1669 1670 public void enterSpringLoadedDragMode(CellLayout clThatWasClicked) { 1671 unshrink(clThatWasClicked, true); 1672 } 1673 1674 public void exitSpringLoadedDragMode(State shrinkState) { 1675 shrink(shrinkState); 1676 } 1677 1678 public void exitWidgetResizeMode() { 1679 DragLayer dragLayer = mLauncher.getDragLayer(); 1680 dragLayer.clearAllResizeFrames(); 1681 } 1682 1683 void unshrink(boolean animated) { 1684 unshrink(animated, false); 1685 } 1686 1687 private void initAnimationArrays() { 1688 final int childCount = getChildCount(); 1689 if (mOldTranslationXs != null) return; 1690 mOldTranslationXs = new float[childCount]; 1691 mOldTranslationYs = new float[childCount]; 1692 mOldScaleXs = new float[childCount]; 1693 mOldScaleYs = new float[childCount]; 1694 mOldBackgroundAlphas = new float[childCount]; 1695 mOldBackgroundAlphaMultipliers = new float[childCount]; 1696 mOldAlphas = new float[childCount]; 1697 mOldRotationYs = new float[childCount]; 1698 mNewTranslationXs = new float[childCount]; 1699 mNewTranslationYs = new float[childCount]; 1700 mNewScaleXs = new float[childCount]; 1701 mNewScaleYs = new float[childCount]; 1702 mNewBackgroundAlphas = new float[childCount]; 1703 mNewBackgroundAlphaMultipliers = new float[childCount]; 1704 mNewAlphas = new float[childCount]; 1705 mNewRotationYs = new float[childCount]; 1706 } 1707 1708 void unshrink(boolean animated, boolean springLoaded) { 1709 if (mFirstLayout) { 1710 // (mFirstLayout == "first layout has not happened yet") 1711 // cancel any pending shrinks that were set earlier 1712 mSwitchStateAfterFirstLayout = false; 1713 mStateAfterFirstLayout = State.NORMAL; 1714 return; 1715 } 1716 1717 if (isSmall()) { 1718 float finalScaleFactor = 1.0f; 1719 float finalBackgroundAlpha = 0.0f; 1720 if (springLoaded) { 1721 finalScaleFactor = mSpringLoadedShrinkFactor; 1722 finalBackgroundAlpha = 1.0f; 1723 mState = State.SPRING_LOADED; 1724 } else { 1725 mState = State.NORMAL; 1726 } 1727 if (mAnimator != null) { 1728 mAnimator.cancel(); 1729 } 1730 1731 mAnimator = new AnimatorSet(); 1732 1733 // Workaround the AnimatorSet cancel bug... 1734 mShrinkAnimationEnabled = false; 1735 mUnshrinkAnimationEnabled = true; 1736 1737 final int screenCount = getChildCount(); 1738 initAnimationArrays(); 1739 1740 final int duration = getResources().getInteger(R.integer.config_workspaceUnshrinkTime); 1741 for (int i = 0; i < screenCount; i++) { 1742 final CellLayout cl = (CellLayout)getChildAt(i); 1743 float finalAlphaValue = 0f; 1744 float rotation = 0f; 1745 if (LauncherApplication.isScreenLarge()) { 1746 finalAlphaValue = (i == mCurrentPage) ? 1.0f : 0.0f; 1747 1748 if (i < mCurrentPage) { 1749 rotation = WORKSPACE_ROTATION; 1750 } else if (i > mCurrentPage) { 1751 rotation = -WORKSPACE_ROTATION; 1752 } 1753 } else { 1754 // Don't hide the side panes on the phone if we don't also update the side pages 1755 // alpha. See screenScrolled(). 1756 finalAlphaValue = 1f; 1757 } 1758 float finalAlphaMultiplierValue = 1f; 1759 1760 float translation = 0f; 1761 1762 // If the screen is not xlarge, then don't rotate the CellLayouts 1763 // NOTE: If we don't update the side pages alpha, then we should not hide the side 1764 // pages. see unshrink(). 1765 if (LauncherApplication.isScreenLarge()) { 1766 translation = getOffsetXForRotation(rotation, cl.getWidth(), cl.getHeight()); 1767 } 1768 1769 mOldAlphas[i] = cl.getAlpha(); 1770 mNewAlphas[i] = finalAlphaValue; 1771 if (animated) { 1772 mOldTranslationXs[i] = cl.getTranslationX(); 1773 mOldTranslationYs[i] = cl.getTranslationY(); 1774 mOldScaleXs[i] = cl.getScaleX(); 1775 mOldScaleYs[i] = cl.getScaleY(); 1776 mOldBackgroundAlphas[i] = cl.getBackgroundAlpha(); 1777 mOldBackgroundAlphaMultipliers[i] = cl.getBackgroundAlphaMultiplier(); 1778 mOldRotationYs[i] = cl.getRotationY(); 1779 1780 mNewTranslationXs[i] = translation; 1781 mNewTranslationYs[i] = 0f; 1782 mNewScaleXs[i] = finalScaleFactor; 1783 mNewScaleYs[i] = finalScaleFactor; 1784 mNewBackgroundAlphas[i] = finalBackgroundAlpha; 1785 mNewBackgroundAlphaMultipliers[i] = finalAlphaMultiplierValue; 1786 mNewRotationYs[i] = rotation; 1787 } else { 1788 cl.setTranslationX(translation); 1789 cl.setTranslationY(0.0f); 1790 cl.setScaleX(finalScaleFactor); 1791 cl.setScaleY(finalScaleFactor); 1792 cl.setBackgroundAlpha(0.0f); 1793 cl.setBackgroundAlphaMultiplier(finalAlphaMultiplierValue); 1794 cl.setAlpha(finalAlphaValue); 1795 cl.setRotationY(rotation); 1796 mUnshrinkAnimationListener.onAnimationEnd(null); 1797 } 1798 } 1799 Display display = mLauncher.getWindowManager().getDefaultDisplay(); 1800 boolean isLandscape = display.getWidth() > display.getHeight(); 1801 // on phones, don't scroll the wallpaper horizontally or vertically when switching 1802 // to/from all apps 1803 final boolean enableWallpaperEffects = 1804 isHardwareAccelerated() && LauncherApplication.isScreenLarge(); 1805 if (enableWallpaperEffects) { 1806 switch (mState) { 1807 // animating out 1808 case SPRING_LOADED: 1809 if (animated) { 1810 mWallpaperOffset.setHorizontalCatchupConstant(isLandscape ? 0.49f : 0.46f); 1811 mWallpaperOffset.setVerticalCatchupConstant(isLandscape ? 0.49f : 0.46f); 1812 mWallpaperOffset.setOverrideHorizontalCatchupConstant(true); 1813 } 1814 break; 1815 case SMALL: 1816 // all apps 1817 if (animated) { 1818 mWallpaperOffset.setHorizontalCatchupConstant(isLandscape ? 0.65f : 0.65f); 1819 mWallpaperOffset.setVerticalCatchupConstant(isLandscape ? 0.65f : 0.65f); 1820 mWallpaperOffset.setOverrideHorizontalCatchupConstant(true); 1821 } 1822 break; 1823 } 1824 } 1825 if (animated) { 1826 ValueAnimator animWithInterpolator = 1827 ValueAnimator.ofFloat(0f, 1f).setDuration(duration); 1828 animWithInterpolator.setInterpolator(mZoomInInterpolator); 1829 1830 final float oldHorizontalWallpaperOffset = enableWallpaperEffects ? 1831 getHorizontalWallpaperOffset() : 0; 1832 final float oldVerticalWallpaperOffset = enableWallpaperEffects ? 1833 getVerticalWallpaperOffset() : 0; 1834 final float newHorizontalWallpaperOffset = enableWallpaperEffects ? 1835 wallpaperOffsetForCurrentScroll() : 0; 1836 final float newVerticalWallpaperOffset = enableWallpaperEffects ? 0.5f : 0; 1837 animWithInterpolator.addUpdateListener(new LauncherAnimatorUpdateListener() { 1838 public void onAnimationUpdate(float a, float b) { 1839 if (!mUnshrinkAnimationEnabled) return; 1840 mTransitionProgress = b; 1841 if (b == 0f) { 1842 // an optimization, but not required 1843 return; 1844 } 1845 invalidate(); 1846 if (enableWallpaperEffects) { 1847 setHorizontalWallpaperOffset(a * oldHorizontalWallpaperOffset 1848 + b * newHorizontalWallpaperOffset); 1849 setVerticalWallpaperOffset(a * oldVerticalWallpaperOffset 1850 + b * newVerticalWallpaperOffset); 1851 } 1852 for (int i = 0; i < screenCount; i++) { 1853 final CellLayout cl = (CellLayout) getChildAt(i); 1854 cl.fastInvalidate(); 1855 cl.setFastTranslationX( 1856 a * mOldTranslationXs[i] + b * mNewTranslationXs[i]); 1857 cl.setFastTranslationY( 1858 a * mOldTranslationYs[i] + b * mNewTranslationYs[i]); 1859 cl.setFastScaleX(a * mOldScaleXs[i] + b * mNewScaleXs[i]); 1860 cl.setFastScaleY(a * mOldScaleYs[i] + b * mNewScaleYs[i]); 1861 cl.setFastBackgroundAlpha( 1862 a * mOldBackgroundAlphas[i] + b * mNewBackgroundAlphas[i]); 1863 cl.setBackgroundAlphaMultiplier(a * mOldBackgroundAlphaMultipliers[i] + 1864 b * mNewBackgroundAlphaMultipliers[i]); 1865 cl.setFastAlpha(a * mOldAlphas[i] + b * mNewAlphas[i]); 1866 } 1867 } 1868 }); 1869 1870 ValueAnimator rotationAnim = 1871 ValueAnimator.ofFloat(0f, 1f).setDuration(duration); 1872 rotationAnim.setInterpolator(new DecelerateInterpolator(2.0f)); 1873 rotationAnim.addUpdateListener(new LauncherAnimatorUpdateListener() { 1874 public void onAnimationUpdate(float a, float b) { 1875 if (!mUnshrinkAnimationEnabled) return; 1876 // don't invalidate workspace because we did it above 1877 if (b == 0f) { 1878 // an optimization, but not required 1879 return; 1880 } 1881 for (int i = 0; i < screenCount; i++) { 1882 final CellLayout cl = (CellLayout) getChildAt(i); 1883 cl.setFastRotationY(a * mOldRotationYs[i] + b * mNewRotationYs[i]); 1884 } 1885 } 1886 }); 1887 1888 mAnimator.playTogether(animWithInterpolator, rotationAnim); 1889 // If we call this when we're not animated, onAnimationEnd is never called on 1890 // the listener; make sure we only use the listener when we're actually animating 1891 mAnimator.addListener(mUnshrinkAnimationListener); 1892 mAnimator.start(); 1893 } else { 1894 if (enableWallpaperEffects) { 1895 setHorizontalWallpaperOffset(wallpaperOffsetForCurrentScroll()); 1896 setVerticalWallpaperOffset(0.5f); 1897 updateWallpaperOffsetImmediately(); 1898 } 1899 } 1900 } 1901 1902 hideBackgroundGradient(springLoaded ? getResources().getInteger( 1903 R.integer.config_appsCustomizeSpringLoadedBgAlpha) / 100f : 0f, animated); 1904 } 1905 1906 /** 1907 * Draw the View v into the given Canvas. 1908 * 1909 * @param v the view to draw 1910 * @param destCanvas the canvas to draw on 1911 * @param padding the horizontal and vertical padding to use when drawing 1912 */ 1913 private void drawDragView(View v, Canvas destCanvas, int padding, boolean pruneToDrawable) { 1914 final Rect clipRect = mTempRect; 1915 v.getDrawingRect(clipRect); 1916 1917 destCanvas.save(); 1918 if (v instanceof TextView && pruneToDrawable) { 1919 Drawable d = ((TextView) v).getCompoundDrawables()[1]; 1920 clipRect.set(0, 0, d.getIntrinsicWidth() + padding, d.getIntrinsicHeight() + padding); 1921 destCanvas.translate(padding / 2, padding / 2); 1922 d.draw(destCanvas); 1923 } else { 1924 if (v instanceof FolderIcon) { 1925 clipRect.bottom = getResources().getDimensionPixelSize(R.dimen.folder_preview_size); 1926 } else if (v instanceof BubbleTextView) { 1927 final BubbleTextView tv = (BubbleTextView) v; 1928 clipRect.bottom = tv.getExtendedPaddingTop() - (int) BubbleTextView.PADDING_V + 1929 tv.getLayout().getLineTop(0); 1930 } else if (v instanceof TextView) { 1931 final TextView tv = (TextView) v; 1932 clipRect.bottom = tv.getExtendedPaddingTop() - tv.getCompoundDrawablePadding() + 1933 tv.getLayout().getLineTop(0); 1934 } 1935 destCanvas.translate(-v.getScrollX() + padding / 2, -v.getScrollY() + padding / 2); 1936 destCanvas.clipRect(clipRect, Op.REPLACE); 1937 v.draw(destCanvas); 1938 } 1939 destCanvas.restore(); 1940 } 1941 1942 /** 1943 * Returns a new bitmap to show when the given View is being dragged around. 1944 * Responsibility for the bitmap is transferred to the caller. 1945 */ 1946 public Bitmap createDragBitmap(View v, Canvas canvas, int padding) { 1947 final int outlineColor = getResources().getColor(R.color.drag_outline_color); 1948 Bitmap b; 1949 1950 if (v instanceof TextView) { 1951 Drawable d = ((TextView) v).getCompoundDrawables()[1]; 1952 b = Bitmap.createBitmap(d.getIntrinsicWidth() + padding, 1953 d.getIntrinsicHeight() + padding, Bitmap.Config.ARGB_8888); 1954 } else { 1955 b = Bitmap.createBitmap( 1956 v.getWidth() + padding, v.getHeight() + padding, Bitmap.Config.ARGB_8888); 1957 } 1958 1959 canvas.setBitmap(b); 1960 drawDragView(v, canvas, padding, true); 1961 mOutlineHelper.applyOuterBlur(b, canvas, outlineColor); 1962 1963 return b; 1964 } 1965 1966 /** 1967 * Returns a new bitmap to be used as the object outline, e.g. to visualize the drop location. 1968 * Responsibility for the bitmap is transferred to the caller. 1969 */ 1970 private Bitmap createDragOutline(View v, Canvas canvas, int padding) { 1971 final int outlineColor = getResources().getColor(R.color.drag_outline_color); 1972 final Bitmap b = Bitmap.createBitmap( 1973 v.getWidth() + padding, v.getHeight() + padding, Bitmap.Config.ARGB_8888); 1974 1975 canvas.setBitmap(b); 1976 drawDragView(v, canvas, padding, false); 1977 mOutlineHelper.applyMediumExpensiveOutlineWithBlur(b, canvas, outlineColor, outlineColor); 1978 return b; 1979 } 1980 1981 /** 1982 * Returns a new bitmap to be used as the object outline, e.g. to visualize the drop location. 1983 * Responsibility for the bitmap is transferred to the caller. 1984 */ 1985 private Bitmap createDragOutline(Bitmap orig, Canvas canvas, int padding, int w, int h) { 1986 final int outlineColor = getResources().getColor(R.color.drag_outline_color); 1987 final Bitmap b = Bitmap.createBitmap(w, h, Bitmap.Config.ARGB_8888); 1988 canvas.setBitmap(b); 1989 1990 Rect src = new Rect(0, 0, orig.getWidth(), orig.getHeight()); 1991 float scaleFactor = Math.min((w - padding) / (float) orig.getWidth(), 1992 (h - padding) / (float) orig.getHeight()); 1993 int scaledWidth = (int) (scaleFactor * orig.getWidth()); 1994 int scaledHeight = (int) (scaleFactor * orig.getHeight()); 1995 Rect dst = new Rect(0, 0, scaledWidth, scaledHeight); 1996 1997 // center the image 1998 dst.offset((w - scaledWidth) / 2, (h - scaledHeight) / 2); 1999 2000 Paint p = new Paint(); 2001 p.setFilterBitmap(true); 2002 canvas.drawBitmap(orig, src, dst, p); 2003 mOutlineHelper.applyMediumExpensiveOutlineWithBlur(b, canvas, outlineColor, outlineColor); 2004 2005 return b; 2006 } 2007 2008 /** 2009 * Creates a drag outline to represent a drop (that we don't have the actual information for 2010 * yet). May be changed in the future to alter the drop outline slightly depending on the 2011 * clip description mime data. 2012 */ 2013 private Bitmap createExternalDragOutline(Canvas canvas, int padding) { 2014 Resources r = getResources(); 2015 final int outlineColor = r.getColor(R.color.drag_outline_color); 2016 final int iconWidth = r.getDimensionPixelSize(R.dimen.workspace_cell_width); 2017 final int iconHeight = r.getDimensionPixelSize(R.dimen.workspace_cell_height); 2018 final int rectRadius = r.getDimensionPixelSize(R.dimen.external_drop_icon_rect_radius); 2019 final int inset = (int) (Math.min(iconWidth, iconHeight) * 0.2f); 2020 final Bitmap b = Bitmap.createBitmap( 2021 iconWidth + padding, iconHeight + padding, Bitmap.Config.ARGB_8888); 2022 2023 canvas.setBitmap(b); 2024 canvas.drawRoundRect(new RectF(inset, inset, iconWidth - inset, iconHeight - inset), 2025 rectRadius, rectRadius, mExternalDragOutlinePaint); 2026 mOutlineHelper.applyMediumExpensiveOutlineWithBlur(b, canvas, outlineColor, outlineColor); 2027 return b; 2028 } 2029 2030 void startDrag(CellLayout.CellInfo cellInfo) { 2031 View child = cellInfo.cell; 2032 2033 // Make sure the drag was started by a long press as opposed to a long click. 2034 if (!child.isInTouchMode()) { 2035 return; 2036 } 2037 2038 mDragInfo = cellInfo; 2039 child.setVisibility(GONE); 2040 2041 child.clearFocus(); 2042 child.setPressed(false); 2043 2044 final Canvas canvas = new Canvas(); 2045 2046 // We need to add extra padding to the bitmap to make room for the glow effect 2047 final int bitmapPadding = HolographicOutlineHelper.MAX_OUTER_BLUR_RADIUS; 2048 2049 // The outline is used to visualize where the item will land if dropped 2050 mDragOutline = createDragOutline(child, canvas, bitmapPadding); 2051 beginDragShared(child, this); 2052 } 2053 2054 public void beginDragShared(View child, DragSource source) { 2055 // We need to add extra padding to the bitmap to make room for the glow effect 2056 final int bitmapPadding = HolographicOutlineHelper.MAX_OUTER_BLUR_RADIUS; 2057 2058 // The drag bitmap follows the touch point around on the screen 2059 final Bitmap b = createDragBitmap(child, new Canvas(), bitmapPadding); 2060 2061 final int bmpWidth = b.getWidth(); 2062 2063 mLauncher.getDragLayer().getLocationInDragLayer(child, mTempXY); 2064 final int dragLayerX = (int) mTempXY[0] + (child.getWidth() - bmpWidth) / 2; 2065 int dragLayerY = mTempXY[1] - bitmapPadding / 2; 2066 2067 Rect dragRect = null; 2068 if (child instanceof BubbleTextView) { 2069 int iconSize = getResources().getDimensionPixelSize(R.dimen.app_icon_size); 2070 int top = child.getPaddingTop(); 2071 int left = (bmpWidth - iconSize) / 2; 2072 int right = left + iconSize; 2073 int bottom = top + iconSize; 2074 dragLayerY += top; 2075 dragRect = new Rect(left, top, right, bottom); 2076 } else if (child instanceof FolderIcon) { 2077 int previewSize = getResources().getDimensionPixelSize(R.dimen.folder_preview_size); 2078 dragRect = new Rect(0, 0, child.getWidth(), previewSize); 2079 } 2080 2081 mDragController.startDrag(b, dragLayerX, dragLayerY, source, child.getTag(), 2082 DragController.DRAG_ACTION_MOVE, dragRect); 2083 b.recycle(); 2084 } 2085 2086 void addApplicationShortcut(ShortcutInfo info, CellLayout target, long container, int screen, 2087 int cellX, int cellY, boolean insertAtFirst, int intersectX, int intersectY) { 2088 View view = mLauncher.createShortcut(R.layout.application, target, (ShortcutInfo) info); 2089 2090 final int[] cellXY = new int[2]; 2091 target.findCellForSpanThatIntersects(cellXY, 1, 1, intersectX, intersectY); 2092 addInScreen(view, container, screen, cellXY[0], cellXY[1], 1, 1, insertAtFirst); 2093 LauncherModel.addOrMoveItemInDatabase(mLauncher, info, container, screen, cellXY[0], 2094 cellXY[1]); 2095 } 2096 2097 public boolean transitionStateShouldAllowDrop() { 2098 return (!isSwitchingState() || mTransitionProgress > 0.5f); 2099 } 2100 2101 /** 2102 * {@inheritDoc} 2103 */ 2104 public boolean acceptDrop(DragObject d) { 2105 // If it's an external drop (e.g. from All Apps), check if it should be accepted 2106 if (d.dragSource != this) { 2107 // Don't accept the drop if we're not over a screen at time of drop 2108 if (mDragTargetLayout == null) { 2109 return false; 2110 } 2111 if (!transitionStateShouldAllowDrop()) return false; 2112 2113 mDragViewVisualCenter = getDragViewVisualCenter(d.x, d.y, d.xOffset, d.yOffset, 2114 d.dragView, mDragViewVisualCenter); 2115 2116 int spanX = 1; 2117 int spanY = 1; 2118 View ignoreView = null; 2119 if (mDragInfo != null) { 2120 final CellLayout.CellInfo dragCellInfo = mDragInfo; 2121 spanX = dragCellInfo.spanX; 2122 spanY = dragCellInfo.spanY; 2123 ignoreView = dragCellInfo.cell; 2124 } else { 2125 final ItemInfo dragInfo = (ItemInfo) d.dragInfo; 2126 spanX = dragInfo.spanX; 2127 spanY = dragInfo.spanY; 2128 } 2129 2130 mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], 2131 (int) mDragViewVisualCenter[1], spanX, spanY, mDragTargetLayout, mTargetCell); 2132 if (willCreateUserFolder((ItemInfo) d.dragInfo, mDragTargetLayout, mTargetCell, true)) { 2133 return true; 2134 } 2135 if (willAddToExistingUserFolder((ItemInfo) d.dragInfo, mDragTargetLayout, 2136 mTargetCell)) { 2137 return true; 2138 } 2139 2140 2141 // Don't accept the drop if there's no room for the item 2142 if (!mDragTargetLayout.findCellForSpanIgnoring(null, spanX, spanY, ignoreView)) { 2143 mLauncher.showOutOfSpaceMessage(); 2144 return false; 2145 } 2146 } 2147 return true; 2148 } 2149 2150 boolean willCreateUserFolder(ItemInfo info, CellLayout target, int[] targetCell, 2151 boolean considerTimeout) { 2152 View dropOverView = target.getChildAt(targetCell[0], targetCell[1]); 2153 2154 boolean hasntMoved = false; 2155 if (mDragInfo != null) { 2156 CellLayout cellParent = getParentCellLayoutForView(mDragInfo.cell); 2157 hasntMoved = (mDragInfo.cellX == targetCell[0] && 2158 mDragInfo.cellY == targetCell[1]) && (cellParent == target); 2159 } 2160 2161 if (dropOverView == null || hasntMoved || (considerTimeout && !mCreateUserFolderOnDrop)) { 2162 return false; 2163 } 2164 2165 boolean aboveShortcut = (dropOverView.getTag() instanceof ShortcutInfo); 2166 boolean willBecomeShortcut = 2167 (info.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPLICATION || 2168 info.itemType == LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT); 2169 2170 return (aboveShortcut && willBecomeShortcut); 2171 } 2172 2173 boolean willAddToExistingUserFolder(Object dragInfo, CellLayout target, int[] targetCell) { 2174 View dropOverView = target.getChildAt(targetCell[0], targetCell[1]); 2175 if (dropOverView instanceof FolderIcon) { 2176 FolderIcon fi = (FolderIcon) dropOverView; 2177 if (fi.acceptDrop(dragInfo)) { 2178 return true; 2179 } 2180 } 2181 return false; 2182 } 2183 2184 boolean createUserFolderIfNecessary(View newView, long container, CellLayout target, 2185 int[] targetCell, boolean external, DragView dragView, Runnable postAnimationRunnable) { 2186 View v = target.getChildAt(targetCell[0], targetCell[1]); 2187 boolean hasntMoved = false; 2188 if (mDragInfo != null) { 2189 CellLayout cellParent = getParentCellLayoutForView(mDragInfo.cell); 2190 hasntMoved = (mDragInfo.cellX == targetCell[0] && 2191 mDragInfo.cellY == targetCell[1]) && (cellParent == target); 2192 } 2193 2194 if (v == null || hasntMoved || !mCreateUserFolderOnDrop) return false; 2195 mCreateUserFolderOnDrop = false; 2196 final int screen = (targetCell == null) ? mDragInfo.screen : indexOfChild(target); 2197 2198 boolean aboveShortcut = (v.getTag() instanceof ShortcutInfo); 2199 boolean willBecomeShortcut = (newView.getTag() instanceof ShortcutInfo); 2200 2201 if (aboveShortcut && willBecomeShortcut) { 2202 ShortcutInfo sourceInfo = (ShortcutInfo) newView.getTag(); 2203 ShortcutInfo destInfo = (ShortcutInfo) v.getTag(); 2204 // if the drag started here, we need to remove it from the workspace 2205 if (!external) { 2206 getParentCellLayoutForView(mDragInfo.cell).removeView(mDragInfo.cell); 2207 } 2208 2209 Rect folderLocation = new Rect(); 2210 float scale = mLauncher.getDragLayer().getDescendantRectRelativeToSelf(v, folderLocation); 2211 target.removeView(v); 2212 2213 FolderIcon fi = 2214 mLauncher.addFolder(target, container, screen, targetCell[0], targetCell[1]); 2215 destInfo.cellX = -1; 2216 destInfo.cellY = -1; 2217 sourceInfo.cellX = -1; 2218 sourceInfo.cellY = -1; 2219 2220 fi.performCreateAnimation(destInfo, v, sourceInfo, dragView, folderLocation, scale, 2221 postAnimationRunnable); 2222 return true; 2223 } 2224 return false; 2225 } 2226 2227 boolean addToExistingFolderIfNecessary(View newView, CellLayout target, int[] targetCell, 2228 DragObject d, boolean external) { 2229 View dropOverView = target.getChildAt(targetCell[0], targetCell[1]); 2230 if (dropOverView instanceof FolderIcon) { 2231 FolderIcon fi = (FolderIcon) dropOverView; 2232 if (fi.acceptDrop(d.dragInfo)) { 2233 fi.onDrop(d); 2234 2235 // if the drag started here, we need to remove it from the workspace 2236 if (!external) { 2237 getParentCellLayoutForView(mDragInfo.cell).removeView(mDragInfo.cell); 2238 } 2239 return true; 2240 } 2241 } 2242 return false; 2243 } 2244 2245 public void onDrop(DragObject d) { 2246 mDragViewVisualCenter = getDragViewVisualCenter(d.x, d.y, d.xOffset, d.yOffset, d.dragView, 2247 mDragViewVisualCenter); 2248 2249 // We want the point to be mapped to the dragTarget. 2250 if (mDragTargetLayout != null) { 2251 if (mLauncher.isHotseatLayout(mDragTargetLayout)) { 2252 mapPointFromSelfToSibling(mLauncher.getHotseat(), mDragViewVisualCenter); 2253 } else { 2254 mapPointFromSelfToChild(mDragTargetLayout, mDragViewVisualCenter, null); 2255 } 2256 } 2257 2258 // When you are in customization mode and drag to a particular screen, make that the 2259 // new current/default screen, so any subsequent taps add items to that screen 2260 if (!mLauncher.isAllAppsVisible()) { 2261 int dragTargetIndex = indexOfChild(mDragTargetLayout); 2262 if (mCurrentPage != dragTargetIndex && (isSmall() || mIsSwitchingState)) { 2263 scrollToNewPageWithoutMovingPages(dragTargetIndex); 2264 } 2265 } 2266 CellLayout dropTargetLayout = mDragTargetLayout; 2267 2268 if (d.dragSource != this) { 2269 final int[] touchXY = new int[] { (int) mDragViewVisualCenter[0], 2270 (int) mDragViewVisualCenter[1] }; 2271 onDropExternal(touchXY, d.dragInfo, dropTargetLayout, false, d); 2272 } else if (mDragInfo != null) { 2273 final View cell = mDragInfo.cell; 2274 2275 boolean continueDrop = true; 2276 if (mLauncher.isHotseatLayout(mDragTargetLayout) && d.dragInfo instanceof ItemInfo) { 2277 ItemInfo info = (ItemInfo) d.dragInfo; 2278 if (info.spanX > 1 || info.spanY > 1) { 2279 continueDrop = false; 2280 Toast.makeText(getContext(), R.string.invalid_hotseat_item, 2281 Toast.LENGTH_SHORT).show(); 2282 } 2283 } 2284 2285 if (continueDrop && dropTargetLayout != null) { 2286 // Move internally 2287 boolean hasMovedLayouts = (getParentCellLayoutForView(cell) != dropTargetLayout); 2288 boolean hasMovedIntoHotseat = mLauncher.isHotseatLayout(dropTargetLayout); 2289 long container = hasMovedIntoHotseat ? 2290 LauncherSettings.Favorites.CONTAINER_HOTSEAT : 2291 LauncherSettings.Favorites.CONTAINER_DESKTOP; 2292 int screen = (mTargetCell[0] < 0) ? 2293 mDragInfo.screen : indexOfChild(dropTargetLayout); 2294 int spanX = mDragInfo != null ? mDragInfo.spanX : 1; 2295 int spanY = mDragInfo != null ? mDragInfo.spanY : 1; 2296 // First we find the cell nearest to point at which the item is 2297 // dropped, without any consideration to whether there is an item there. 2298 mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], (int) 2299 mDragViewVisualCenter[1], spanX, spanY, dropTargetLayout, mTargetCell); 2300 // If the item being dropped is a shortcut and the nearest drop 2301 // cell also contains a shortcut, then create a folder with the two shortcuts. 2302 boolean dropInscrollArea = hasMovedLayouts && !hasMovedIntoHotseat; 2303 if (!dropInscrollArea && createUserFolderIfNecessary(cell, container, 2304 dropTargetLayout, mTargetCell, false, d.dragView, null)) { 2305 return; 2306 } 2307 2308 if (addToExistingFolderIfNecessary(cell, dropTargetLayout, mTargetCell, d, false)) { 2309 return; 2310 } 2311 2312 // Aside from the special case where we're dropping a shortcut onto a shortcut, 2313 // we need to find the nearest cell location that is vacant 2314 mTargetCell = findNearestVacantArea((int) mDragViewVisualCenter[0], 2315 (int) mDragViewVisualCenter[1], mDragInfo.spanX, mDragInfo.spanY, cell, 2316 dropTargetLayout, mTargetCell); 2317 2318 if (dropInscrollArea && mState != State.SPRING_LOADED) { 2319 snapToPage(screen); 2320 } 2321 2322 2323 if (mTargetCell[0] >= 0 && mTargetCell[1] >= 0) { 2324 if (hasMovedLayouts) { 2325 // Reparent the view 2326 getParentCellLayoutForView(cell).removeView(cell); 2327 addInScreen(cell, container, screen, mTargetCell[0], mTargetCell[1], 2328 mDragInfo.spanX, mDragInfo.spanY); 2329 } 2330 2331 // update the item's position after drop 2332 final ItemInfo info = (ItemInfo) cell.getTag(); 2333 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) cell.getLayoutParams(); 2334 dropTargetLayout.onMove(cell, mTargetCell[0], mTargetCell[1]); 2335 lp.cellX = mTargetCell[0]; 2336 lp.cellY = mTargetCell[1]; 2337 cell.setId(LauncherModel.getCellLayoutChildId(container, mDragInfo.screen, 2338 mTargetCell[0], mTargetCell[1], mDragInfo.spanX, mDragInfo.spanY)); 2339 2340 if (container != LauncherSettings.Favorites.CONTAINER_HOTSEAT && 2341 cell instanceof LauncherAppWidgetHostView) { 2342 final CellLayout cellLayout = dropTargetLayout; 2343 // We post this call so that the widget has a chance to be placed 2344 // in its final location 2345 2346 final LauncherAppWidgetHostView hostView = (LauncherAppWidgetHostView) cell; 2347 AppWidgetProviderInfo pinfo = hostView.getAppWidgetInfo(); 2348 if (pinfo.resizeMode != AppWidgetProviderInfo.RESIZE_NONE) { 2349 final Runnable resizeRunnable = new Runnable() { 2350 public void run() { 2351 DragLayer dragLayer = mLauncher.getDragLayer(); 2352 dragLayer.addResizeFrame(info, hostView, cellLayout); 2353 } 2354 }; 2355 post(new Runnable() { 2356 public void run() { 2357 if (!isPageMoving()) { 2358 resizeRunnable.run(); 2359 } else { 2360 mDelayedResizeRunnable = resizeRunnable; 2361 } 2362 } 2363 }); 2364 } 2365 } 2366 2367 LauncherModel.moveItemInDatabase(mLauncher, info, container, screen, lp.cellX, 2368 lp.cellY); 2369 } 2370 } 2371 2372 final CellLayout parent = (CellLayout) cell.getParent().getParent(); 2373 2374 // Prepare it to be animated into its new position 2375 // This must be called after the view has been re-parented 2376 final Runnable disableHardwareLayersRunnable = new Runnable() { 2377 @Override 2378 public void run() { 2379 mAnimatingViewIntoPlace = false; 2380 updateChildrenLayersEnabled(); 2381 } 2382 }; 2383 mAnimatingViewIntoPlace = true; 2384 if (d.dragView.hasDrawn()) { 2385 mLauncher.getDragLayer().animateViewIntoPosition(d.dragView, cell, 2386 disableHardwareLayersRunnable); 2387 } else { 2388 cell.setVisibility(VISIBLE); 2389 } 2390 parent.onDropChild(cell); 2391 } 2392 } 2393 2394 public void getViewLocationRelativeToSelf(View v, int[] location) { 2395 getLocationInWindow(location); 2396 int x = location[0]; 2397 int y = location[1]; 2398 2399 v.getLocationInWindow(location); 2400 int vX = location[0]; 2401 int vY = location[1]; 2402 2403 location[0] = vX - x; 2404 location[1] = vY - y; 2405 } 2406 2407 public void onDragEnter(DragObject d) { 2408 if (mDragTargetLayout != null) { 2409 mDragTargetLayout.setIsDragOverlapping(false); 2410 mDragTargetLayout.onDragExit(); 2411 } 2412 mDragTargetLayout = getCurrentDropLayout(); 2413 mDragTargetLayout.setIsDragOverlapping(true); 2414 mDragTargetLayout.onDragEnter(); 2415 2416 // Because we don't have space in the Phone UI (the CellLayouts run to the edge) we 2417 // don't need to show the outlines 2418 if (LauncherApplication.isScreenLarge()) { 2419 showOutlines(); 2420 } 2421 } 2422 2423 private void doDragExit(DragObject d) { 2424 // Clean up folders 2425 cleanupFolderCreation(d); 2426 2427 // Reset the scroll area and previous drag target 2428 onResetScrollArea(); 2429 2430 if (mDragTargetLayout != null) { 2431 mDragTargetLayout.setIsDragOverlapping(false); 2432 mDragTargetLayout.onDragExit(); 2433 } 2434 mLastDragOverView = null; 2435 2436 if (!mIsPageMoving) { 2437 hideOutlines(); 2438 } 2439 } 2440 2441 public void onDragExit(DragObject d) { 2442 doDragExit(d); 2443 } 2444 2445 public DropTarget getDropTargetDelegate(DragObject d) { 2446 return null; 2447 } 2448 2449 /** 2450 * Tests to see if the drop will be accepted by Launcher, and if so, includes additional data 2451 * in the returned structure related to the widgets that match the drop (or a null list if it is 2452 * a shortcut drop). If the drop is not accepted then a null structure is returned. 2453 */ 2454 private Pair<Integer, List<WidgetMimeTypeHandlerData>> validateDrag(DragEvent event) { 2455 final LauncherModel model = mLauncher.getModel(); 2456 final ClipDescription desc = event.getClipDescription(); 2457 final int mimeTypeCount = desc.getMimeTypeCount(); 2458 for (int i = 0; i < mimeTypeCount; ++i) { 2459 final String mimeType = desc.getMimeType(i); 2460 if (mimeType.equals(InstallShortcutReceiver.SHORTCUT_MIMETYPE)) { 2461 return new Pair<Integer, List<WidgetMimeTypeHandlerData>>(i, null); 2462 } else { 2463 final List<WidgetMimeTypeHandlerData> widgets = 2464 model.resolveWidgetsForMimeType(mContext, mimeType); 2465 if (widgets.size() > 0) { 2466 return new Pair<Integer, List<WidgetMimeTypeHandlerData>>(i, widgets); 2467 } 2468 } 2469 } 2470 return null; 2471 } 2472 2473 /** 2474 * Global drag and drop handler 2475 */ 2476 @Override 2477 public boolean onDragEvent(DragEvent event) { 2478 final ClipDescription desc = event.getClipDescription(); 2479 final CellLayout layout = (CellLayout) getChildAt(mCurrentPage); 2480 final int[] pos = new int[2]; 2481 layout.getLocationOnScreen(pos); 2482 // We need to offset the drag coordinates to layout coordinate space 2483 final int x = (int) event.getX() - pos[0]; 2484 final int y = (int) event.getY() - pos[1]; 2485 2486 switch (event.getAction()) { 2487 case DragEvent.ACTION_DRAG_STARTED: { 2488 // Validate this drag 2489 Pair<Integer, List<WidgetMimeTypeHandlerData>> test = validateDrag(event); 2490 if (test != null) { 2491 boolean isShortcut = (test.second == null); 2492 if (isShortcut) { 2493 // Check if we have enough space on this screen to add a new shortcut 2494 if (!layout.findCellForSpan(pos, 1, 1)) { 2495 mLauncher.showOutOfSpaceMessage(); 2496 return false; 2497 } 2498 } 2499 } else { 2500 // Show error message if we couldn't accept any of the items 2501 Toast.makeText(mContext, mContext.getString(R.string.external_drop_widget_error), 2502 Toast.LENGTH_SHORT).show(); 2503 return false; 2504 } 2505 2506 // Create the drag outline 2507 // We need to add extra padding to the bitmap to make room for the glow effect 2508 final Canvas canvas = new Canvas(); 2509 final int bitmapPadding = HolographicOutlineHelper.MAX_OUTER_BLUR_RADIUS; 2510 mDragOutline = createExternalDragOutline(canvas, bitmapPadding); 2511 2512 // Show the current page outlines to indicate that we can accept this drop 2513 showOutlines(); 2514 layout.setIsDragOccuring(true); 2515 layout.onDragEnter(); 2516 layout.visualizeDropLocation(null, mDragOutline, x, y, 1, 1); 2517 2518 return true; 2519 } 2520 case DragEvent.ACTION_DRAG_LOCATION: 2521 // Visualize the drop location 2522 layout.visualizeDropLocation(null, mDragOutline, x, y, 1, 1); 2523 return true; 2524 case DragEvent.ACTION_DROP: { 2525 // Try and add any shortcuts 2526 final LauncherModel model = mLauncher.getModel(); 2527 final ClipData data = event.getClipData(); 2528 2529 // We assume that the mime types are ordered in descending importance of 2530 // representation. So we enumerate the list of mime types and alert the 2531 // user if any widgets can handle the drop. Only the most preferred 2532 // representation will be handled. 2533 pos[0] = x; 2534 pos[1] = y; 2535 Pair<Integer, List<WidgetMimeTypeHandlerData>> test = validateDrag(event); 2536 if (test != null) { 2537 final int index = test.first; 2538 final List<WidgetMimeTypeHandlerData> widgets = test.second; 2539 final boolean isShortcut = (widgets == null); 2540 final String mimeType = desc.getMimeType(index); 2541 if (isShortcut) { 2542 final Intent intent = data.getItemAt(index).getIntent(); 2543 Object info = model.infoFromShortcutIntent(mContext, intent, data.getIcon()); 2544 onDropExternal(new int[] { x, y }, info, layout, false); 2545 } else { 2546 if (widgets.size() == 1) { 2547 // If there is only one item, then go ahead and add and configure 2548 // that widget 2549 final AppWidgetProviderInfo widgetInfo = widgets.get(0).widgetInfo; 2550 final PendingAddWidgetInfo createInfo = 2551 new PendingAddWidgetInfo(widgetInfo, mimeType, data); 2552 mLauncher.addAppWidgetFromDrop(createInfo, 2553 LauncherSettings.Favorites.CONTAINER_DESKTOP, mCurrentPage, null, pos); 2554 } else { 2555 // Show the widget picker dialog if there is more than one widget 2556 // that can handle this data type 2557 final InstallWidgetReceiver.WidgetListAdapter adapter = 2558 new InstallWidgetReceiver.WidgetListAdapter(mLauncher, mimeType, 2559 data, widgets, layout, mCurrentPage, pos); 2560 final AlertDialog.Builder builder = 2561 new AlertDialog.Builder(mContext); 2562 builder.setAdapter(adapter, adapter); 2563 builder.setCancelable(true); 2564 builder.setTitle(mContext.getString( 2565 R.string.external_drop_widget_pick_title)); 2566 builder.setIcon(R.drawable.ic_no_applications); 2567 builder.show(); 2568 } 2569 } 2570 } 2571 return true; 2572 } 2573 case DragEvent.ACTION_DRAG_ENDED: 2574 // Hide the page outlines after the drop 2575 layout.setIsDragOccuring(false); 2576 layout.onDragExit(); 2577 hideOutlines(); 2578 return true; 2579 } 2580 return super.onDragEvent(event); 2581 } 2582 2583 /* 2584 * 2585 * Convert the 2D coordinate xy from the parent View's coordinate space to this CellLayout's 2586 * coordinate space. The argument xy is modified with the return result. 2587 * 2588 */ 2589 void mapPointFromSelfToChild(View v, float[] xy) { 2590 mapPointFromSelfToChild(v, xy, null); 2591 } 2592 2593 /* 2594 * 2595 * Convert the 2D coordinate xy from the parent View's coordinate space to this CellLayout's 2596 * coordinate space. The argument xy is modified with the return result. 2597 * 2598 * if cachedInverseMatrix is not null, this method will just use that matrix instead of 2599 * computing it itself; we use this to avoid redundant matrix inversions in 2600 * findMatchingPageForDragOver 2601 * 2602 */ 2603 void mapPointFromSelfToChild(View v, float[] xy, Matrix cachedInverseMatrix) { 2604 if (cachedInverseMatrix == null) { 2605 v.getMatrix().invert(mTempInverseMatrix); 2606 cachedInverseMatrix = mTempInverseMatrix; 2607 } 2608 xy[0] = xy[0] + mScrollX - v.getLeft(); 2609 xy[1] = xy[1] + mScrollY - v.getTop(); 2610 cachedInverseMatrix.mapPoints(xy); 2611 } 2612 2613 /* 2614 * Maps a point from the Workspace's coordinate system to another sibling view's. (Workspace 2615 * covers the full screen) 2616 */ 2617 void mapPointFromSelfToSibling(View v, float[] xy) { 2618 xy[0] = xy[0] - v.getLeft(); 2619 xy[1] = xy[1] - v.getTop(); 2620 } 2621 2622 /* 2623 * 2624 * Convert the 2D coordinate xy from this CellLayout's coordinate space to 2625 * the parent View's coordinate space. The argument xy is modified with the return result. 2626 * 2627 */ 2628 void mapPointFromChildToSelf(View v, float[] xy) { 2629 v.getMatrix().mapPoints(xy); 2630 xy[0] -= (mScrollX - v.getLeft()); 2631 xy[1] -= (mScrollY - v.getTop()); 2632 } 2633 2634 static private float squaredDistance(float[] point1, float[] point2) { 2635 float distanceX = point1[0] - point2[0]; 2636 float distanceY = point2[1] - point2[1]; 2637 return distanceX * distanceX + distanceY * distanceY; 2638 } 2639 2640 /* 2641 * 2642 * Returns true if the passed CellLayout cl overlaps with dragView 2643 * 2644 */ 2645 boolean overlaps(CellLayout cl, DragView dragView, 2646 int dragViewX, int dragViewY, Matrix cachedInverseMatrix) { 2647 // Transform the coordinates of the item being dragged to the CellLayout's coordinates 2648 final float[] draggedItemTopLeft = mTempDragCoordinates; 2649 draggedItemTopLeft[0] = dragViewX; 2650 draggedItemTopLeft[1] = dragViewY; 2651 final float[] draggedItemBottomRight = mTempDragBottomRightCoordinates; 2652 draggedItemBottomRight[0] = draggedItemTopLeft[0] + dragView.getDragRegionWidth(); 2653 draggedItemBottomRight[1] = draggedItemTopLeft[1] + dragView.getDragRegionHeight(); 2654 2655 // Transform the dragged item's top left coordinates 2656 // to the CellLayout's local coordinates 2657 mapPointFromSelfToChild(cl, draggedItemTopLeft, cachedInverseMatrix); 2658 float overlapRegionLeft = Math.max(0f, draggedItemTopLeft[0]); 2659 float overlapRegionTop = Math.max(0f, draggedItemTopLeft[1]); 2660 2661 if (overlapRegionLeft <= cl.getWidth() && overlapRegionTop >= 0) { 2662 // Transform the dragged item's bottom right coordinates 2663 // to the CellLayout's local coordinates 2664 mapPointFromSelfToChild(cl, draggedItemBottomRight, cachedInverseMatrix); 2665 float overlapRegionRight = Math.min(cl.getWidth(), draggedItemBottomRight[0]); 2666 float overlapRegionBottom = Math.min(cl.getHeight(), draggedItemBottomRight[1]); 2667 2668 if (overlapRegionRight >= 0 && overlapRegionBottom <= cl.getHeight()) { 2669 float overlap = (overlapRegionRight - overlapRegionLeft) * 2670 (overlapRegionBottom - overlapRegionTop); 2671 if (overlap > 0) { 2672 return true; 2673 } 2674 } 2675 } 2676 return false; 2677 } 2678 2679 /* 2680 * 2681 * This method returns the CellLayout that is currently being dragged to. In order to drag 2682 * to a CellLayout, either the touch point must be directly over the CellLayout, or as a second 2683 * strategy, we see if the dragView is overlapping any CellLayout and choose the closest one 2684 * 2685 * Return null if no CellLayout is currently being dragged over 2686 * 2687 */ 2688 private CellLayout findMatchingPageForDragOver( 2689 DragView dragView, float originX, float originY, boolean exact) { 2690 // We loop through all the screens (ie CellLayouts) and see which ones overlap 2691 // with the item being dragged and then choose the one that's closest to the touch point 2692 final int screenCount = getChildCount(); 2693 CellLayout bestMatchingScreen = null; 2694 float smallestDistSoFar = Float.MAX_VALUE; 2695 2696 for (int i = 0; i < screenCount; i++) { 2697 CellLayout cl = (CellLayout) getChildAt(i); 2698 2699 final float[] touchXy = {originX, originY}; 2700 // Transform the touch coordinates to the CellLayout's local coordinates 2701 // If the touch point is within the bounds of the cell layout, we can return immediately 2702 cl.getMatrix().invert(mTempInverseMatrix); 2703 mapPointFromSelfToChild(cl, touchXy, mTempInverseMatrix); 2704 2705 if (touchXy[0] >= 0 && touchXy[0] <= cl.getWidth() && 2706 touchXy[1] >= 0 && touchXy[1] <= cl.getHeight()) { 2707 return cl; 2708 } 2709 2710 if (!exact && overlaps(cl, dragView, (int) originX, (int) originY, mTempInverseMatrix)) { 2711 // Get the center of the cell layout in screen coordinates 2712 final float[] cellLayoutCenter = mTempCellLayoutCenterCoordinates; 2713 cellLayoutCenter[0] = cl.getWidth()/2; 2714 cellLayoutCenter[1] = cl.getHeight()/2; 2715 mapPointFromChildToSelf(cl, cellLayoutCenter); 2716 2717 touchXy[0] = originX; 2718 touchXy[1] = originY; 2719 2720 // Calculate the distance between the center of the CellLayout 2721 // and the touch point 2722 float dist = squaredDistance(touchXy, cellLayoutCenter); 2723 2724 if (dist < smallestDistSoFar) { 2725 smallestDistSoFar = dist; 2726 bestMatchingScreen = cl; 2727 } 2728 } 2729 } 2730 return bestMatchingScreen; 2731 } 2732 2733 // This is used to compute the visual center of the dragView. This point is then 2734 // used to visualize drop locations and determine where to drop an item. The idea is that 2735 // the visual center represents the user's interpretation of where the item is, and hence 2736 // is the appropriate point to use when determining drop location. 2737 private float[] getDragViewVisualCenter(int x, int y, int xOffset, int yOffset, 2738 DragView dragView, float[] recycle) { 2739 float res[]; 2740 if (recycle == null) { 2741 res = new float[2]; 2742 } else { 2743 res = recycle; 2744 } 2745 2746 // First off, the drag view has been shifted in a way that is not represented in the 2747 // x and y values or the x/yOffsets. Here we account for that shift. 2748 x += getResources().getDimensionPixelSize(R.dimen.dragViewOffsetX); 2749 y += getResources().getDimensionPixelSize(R.dimen.dragViewOffsetY); 2750 2751 // These represent the visual top and left of drag view if a dragRect was provided. 2752 // If a dragRect was not provided, then they correspond to the actual view left and 2753 // top, as the dragRect is in that case taken to be the entire dragView. 2754 // R.dimen.dragViewOffsetY. 2755 int left = x - xOffset; 2756 int top = y - yOffset; 2757 2758 // In order to find the visual center, we shift by half the dragRect 2759 res[0] = left + dragView.getDragRegion().width() / 2; 2760 res[1] = top + dragView.getDragRegion().height() / 2; 2761 2762 return res; 2763 } 2764 2765 public void onDragOver(DragObject d) { 2766 // Skip drag over events while we are dragging over side pages 2767 if (mInScrollArea) return; 2768 if (mIsSwitchingState) return; 2769 2770 CellLayout layout = null; 2771 ItemInfo item = (ItemInfo) d.dragInfo; 2772 2773 // Ensure that we have proper spans for the item that we are dropping 2774 if (item.spanX < 0 || item.spanY < 0) throw new RuntimeException("Improper spans found"); 2775 2776 mDragViewVisualCenter = getDragViewVisualCenter(d.x, d.y, d.xOffset, d.yOffset, 2777 d.dragView, mDragViewVisualCenter); 2778 2779 // Identify whether we have dragged over a side page 2780 if (isSmall()) { 2781 layout = findMatchingPageForDragOver(d.dragView, mDragViewVisualCenter[0], 2782 mDragViewVisualCenter[1], true); 2783 if (layout != mDragTargetLayout) { 2784 // Cancel all intermediate folder states 2785 cleanupFolderCreation(d); 2786 2787 if (mDragTargetLayout != null) { 2788 mDragTargetLayout.setIsDragOverlapping(false); 2789 mDragTargetLayout.onDragExit(); 2790 } 2791 mDragTargetLayout = layout; 2792 if (mDragTargetLayout != null) { 2793 mDragTargetLayout.setIsDragOverlapping(true); 2794 mDragTargetLayout.onDragEnter(); 2795 } else { 2796 mLastDragOverView = null; 2797 } 2798 2799 boolean isInSpringLoadedMode = (mState == State.SPRING_LOADED); 2800 if (isInSpringLoadedMode) { 2801 mSpringLoadedDragController.setAlarm(mDragTargetLayout); 2802 } 2803 } 2804 } else { 2805 // Test to see if we are over the hotseat otherwise just use the current page 2806 Rect r = new Rect(); 2807 if (mLauncher.getHotseat() != null) { 2808 mLauncher.getHotseat().getHitRect(r); 2809 if (r.contains(d.x, d.y)) { 2810 layout = mLauncher.getHotseat().getLayout(); 2811 } 2812 } 2813 if (layout == null) { 2814 layout = getCurrentDropLayout(); 2815 } 2816 if (layout != mDragTargetLayout) { 2817 if (mDragTargetLayout != null) { 2818 mDragTargetLayout.setIsDragOverlapping(false); 2819 mDragTargetLayout.onDragExit(); 2820 } 2821 mDragTargetLayout = layout; 2822 mDragTargetLayout.setIsDragOverlapping(true); 2823 mDragTargetLayout.onDragEnter(); 2824 } 2825 } 2826 2827 // Handle the drag over 2828 if (mDragTargetLayout != null) { 2829 final View child = (mDragInfo == null) ? null : mDragInfo.cell; 2830 2831 // We want the point to be mapped to the dragTarget. 2832 if (mLauncher.isHotseatLayout(mDragTargetLayout)) { 2833 mapPointFromSelfToSibling(mLauncher.getHotseat(), mDragViewVisualCenter); 2834 } else { 2835 mapPointFromSelfToChild(mDragTargetLayout, mDragViewVisualCenter, null); 2836 } 2837 ItemInfo info = (ItemInfo) d.dragInfo; 2838 2839 mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], 2840 (int) mDragViewVisualCenter[1], 1, 1, mDragTargetLayout, mTargetCell); 2841 final View dragOverView = mDragTargetLayout.getChildAt(mTargetCell[0], 2842 mTargetCell[1]); 2843 2844 boolean userFolderPending = willCreateUserFolder(info, mDragTargetLayout, 2845 mTargetCell, false); 2846 boolean isOverFolder = dragOverView instanceof FolderIcon; 2847 if (dragOverView != mLastDragOverView) { 2848 cancelFolderCreation(); 2849 if (mLastDragOverView != null && mLastDragOverView instanceof FolderIcon) { 2850 ((FolderIcon) mLastDragOverView).onDragExit(d.dragInfo); 2851 } 2852 } 2853 2854 if (userFolderPending && dragOverView != mLastDragOverView) { 2855 mFolderCreationAlarm.setOnAlarmListener(new 2856 FolderCreationAlarmListener(mDragTargetLayout, mTargetCell[0], mTargetCell[1])); 2857 mFolderCreationAlarm.setAlarm(FOLDER_CREATION_TIMEOUT); 2858 } 2859 2860 if (dragOverView != mLastDragOverView && isOverFolder) { 2861 ((FolderIcon) dragOverView).onDragEnter(d.dragInfo); 2862 if (mDragTargetLayout != null) { 2863 mDragTargetLayout.clearDragOutlines(); 2864 } 2865 } 2866 mLastDragOverView = dragOverView; 2867 2868 if (!mCreateUserFolderOnDrop && !isOverFolder) { 2869 mDragTargetLayout.visualizeDropLocation(child, mDragOutline, 2870 (int) mDragViewVisualCenter[0], (int) mDragViewVisualCenter[1], 2871 item.spanX, item.spanY); 2872 } 2873 } 2874 } 2875 2876 private void cleanupFolderCreation(DragObject d) { 2877 if (mDragFolderRingAnimator != null && mCreateUserFolderOnDrop) { 2878 mDragFolderRingAnimator.animateToNaturalState(); 2879 } 2880 if (mLastDragOverView != null && mLastDragOverView instanceof FolderIcon) { 2881 if (d != null) { 2882 ((FolderIcon) mLastDragOverView).onDragExit(d.dragInfo); 2883 } 2884 } 2885 mFolderCreationAlarm.cancelAlarm(); 2886 } 2887 2888 private void cancelFolderCreation() { 2889 if (mDragFolderRingAnimator != null && mCreateUserFolderOnDrop) { 2890 mDragFolderRingAnimator.animateToNaturalState(); 2891 } 2892 mCreateUserFolderOnDrop = false; 2893 mFolderCreationAlarm.cancelAlarm(); 2894 } 2895 2896 class FolderCreationAlarmListener implements OnAlarmListener { 2897 CellLayout layout; 2898 int cellX; 2899 int cellY; 2900 2901 public FolderCreationAlarmListener(CellLayout layout, int cellX, int cellY) { 2902 this.layout = layout; 2903 this.cellX = cellX; 2904 this.cellY = cellY; 2905 } 2906 2907 public void onAlarm(Alarm alarm) { 2908 if (mDragFolderRingAnimator == null) { 2909 mDragFolderRingAnimator = new FolderRingAnimator(mLauncher, null); 2910 } 2911 mDragFolderRingAnimator.setCell(cellX, cellY); 2912 mDragFolderRingAnimator.setCellLayout(layout); 2913 mDragFolderRingAnimator.animateToAcceptState(); 2914 layout.showFolderAccept(mDragFolderRingAnimator); 2915 layout.clearDragOutlines(); 2916 mCreateUserFolderOnDrop = true; 2917 } 2918 } 2919 2920 @Override 2921 public void getHitRect(Rect outRect) { 2922 // We want the workspace to have the whole area of the display (it will find the correct 2923 // cell layout to drop to in the existing drag/drop logic. 2924 final Display d = mLauncher.getWindowManager().getDefaultDisplay(); 2925 outRect.set(0, 0, d.getWidth(), d.getHeight()); 2926 } 2927 2928 /** 2929 * Add the item specified by dragInfo to the given layout. 2930 * @return true if successful 2931 */ 2932 public boolean addExternalItemToScreen(ItemInfo dragInfo, CellLayout layout) { 2933 if (layout.findCellForSpan(mTempEstimate, dragInfo.spanX, dragInfo.spanY)) { 2934 onDropExternal(dragInfo.dropPos, (ItemInfo) dragInfo, (CellLayout) layout, false); 2935 return true; 2936 } 2937 mLauncher.showOutOfSpaceMessage(); 2938 return false; 2939 } 2940 2941 private void onDropExternal(int[] touchXY, Object dragInfo, 2942 CellLayout cellLayout, boolean insertAtFirst) { 2943 onDropExternal(touchXY, dragInfo, cellLayout, insertAtFirst, null); 2944 } 2945 2946 /** 2947 * Drop an item that didn't originate on one of the workspace screens. 2948 * It may have come from Launcher (e.g. from all apps or customize), or it may have 2949 * come from another app altogether. 2950 * 2951 * NOTE: This can also be called when we are outside of a drag event, when we want 2952 * to add an item to one of the workspace screens. 2953 */ 2954 private void onDropExternal(final int[] touchXY, final Object dragInfo, 2955 final CellLayout cellLayout, boolean insertAtFirst, DragObject d) { 2956 final Runnable exitSpringLoadedRunnable = new Runnable() { 2957 @Override 2958 public void run() { 2959 mLauncher.exitSpringLoadedDragModeDelayed(false); 2960 } 2961 }; 2962 2963 ItemInfo info = (ItemInfo) dragInfo; 2964 int spanX = info.spanX; 2965 int spanY = info.spanY; 2966 if (mDragInfo != null) { 2967 spanX = mDragInfo.spanX; 2968 spanY = mDragInfo.spanY; 2969 } 2970 2971 final long container = mLauncher.isHotseatLayout(cellLayout) ? 2972 LauncherSettings.Favorites.CONTAINER_HOTSEAT : 2973 LauncherSettings.Favorites.CONTAINER_DESKTOP; 2974 final int screen = indexOfChild(cellLayout); 2975 if (!mLauncher.isHotseatLayout(cellLayout) && screen != mCurrentPage 2976 && mState != State.SPRING_LOADED) { 2977 snapToPage(screen); 2978 } 2979 2980 if (info instanceof PendingAddItemInfo) { 2981 final PendingAddItemInfo pendingInfo = (PendingAddItemInfo) dragInfo; 2982 2983 mTargetCell = findNearestVacantArea(touchXY[0], touchXY[1], spanX, spanY, null, 2984 cellLayout, mTargetCell); 2985 Runnable onAnimationCompleteRunnable = new Runnable() { 2986 @Override 2987 public void run() { 2988 // When dragging and dropping from customization tray, we deal with creating 2989 // widgets/shortcuts/folders in a slightly different way 2990 switch (pendingInfo.itemType) { 2991 case LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET: 2992 mLauncher.addAppWidgetFromDrop((PendingAddWidgetInfo) pendingInfo, 2993 container, screen, mTargetCell, null); 2994 break; 2995 case LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT: 2996 mLauncher.processShortcutFromDrop(pendingInfo.componentName, 2997 container, screen, mTargetCell, null); 2998 break; 2999 default: 3000 throw new IllegalStateException("Unknown item type: " + 3001 pendingInfo.itemType); 3002 } 3003 cellLayout.onDragExit(); 3004 } 3005 }; 3006 3007 // Now we animate the dragView, (ie. the widget or shortcut preview) into its final 3008 // location and size on the home screen. 3009 int loc[] = new int[2]; 3010 cellLayout.cellToPoint(mTargetCell[0], mTargetCell[1], loc); 3011 3012 RectF r = new RectF(); 3013 cellLayout.cellToRect(mTargetCell[0], mTargetCell[1], spanX, spanY, r); 3014 setFinalTransitionTransform(cellLayout); 3015 float cellLayoutScale = 3016 mLauncher.getDragLayer().getDescendantCoordRelativeToSelf(cellLayout, loc); 3017 resetTransitionTransform(cellLayout); 3018 3019 float dragViewScale = r.width() / d.dragView.getMeasuredWidth(); 3020 // The animation will scale the dragView about its center, so we need to center about 3021 // the final location. 3022 loc[0] -= (d.dragView.getMeasuredWidth() - cellLayoutScale * r.width()) / 2; 3023 loc[1] -= (d.dragView.getMeasuredHeight() - cellLayoutScale * r.height()) / 2; 3024 3025 mLauncher.getDragLayer().animateViewIntoPosition(d.dragView, loc, 3026 dragViewScale * cellLayoutScale, onAnimationCompleteRunnable); 3027 } else { 3028 // This is for other drag/drop cases, like dragging from All Apps 3029 View view = null; 3030 3031 switch (info.itemType) { 3032 case LauncherSettings.Favorites.ITEM_TYPE_APPLICATION: 3033 case LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT: 3034 if (info.container == NO_ID && info instanceof ApplicationInfo) { 3035 // Came from all apps -- make a copy 3036 info = new ShortcutInfo((ApplicationInfo) info); 3037 } 3038 view = mLauncher.createShortcut(R.layout.application, cellLayout, 3039 (ShortcutInfo) info); 3040 break; 3041 case LauncherSettings.Favorites.ITEM_TYPE_FOLDER: 3042 view = FolderIcon.fromXml(R.layout.folder_icon, mLauncher, cellLayout, 3043 (FolderInfo) info, mIconCache); 3044 break; 3045 default: 3046 throw new IllegalStateException("Unknown item type: " + info.itemType); 3047 } 3048 3049 // First we find the cell nearest to point at which the item is 3050 // dropped, without any consideration to whether there is an item there. 3051 if (touchXY != null) { 3052 mTargetCell = findNearestArea((int) touchXY[0], (int) touchXY[1], spanX, spanY, 3053 cellLayout, mTargetCell); 3054 d.postAnimationRunnable = exitSpringLoadedRunnable; 3055 if (createUserFolderIfNecessary(view, container, cellLayout, mTargetCell, true, 3056 d.dragView, d.postAnimationRunnable)) { 3057 return; 3058 } 3059 if (addToExistingFolderIfNecessary(view, cellLayout, mTargetCell, d, true)) { 3060 return; 3061 } 3062 } 3063 3064 if (touchXY != null) { 3065 // when dragging and dropping, just find the closest free spot 3066 mTargetCell = findNearestVacantArea(touchXY[0], touchXY[1], 1, 1, null, 3067 cellLayout, mTargetCell); 3068 } else { 3069 cellLayout.findCellForSpan(mTargetCell, 1, 1); 3070 } 3071 addInScreen(view, container, screen, mTargetCell[0], mTargetCell[1], info.spanX, 3072 info.spanY, insertAtFirst); 3073 cellLayout.onDropChild(view); 3074 cellLayout.animateDrop(); 3075 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) view.getLayoutParams(); 3076 cellLayout.getChildrenLayout().measureChild(view); 3077 3078 LauncherModel.addOrMoveItemInDatabase(mLauncher, info, container, screen, 3079 lp.cellX, lp.cellY); 3080 3081 if (d.dragView != null) { 3082 // We wrap the animation call in the temporary set and reset of the current 3083 // cellLayout to its final transform -- this means we animate the drag view to 3084 // the correct final location. 3085 setFinalTransitionTransform(cellLayout); 3086 mLauncher.getDragLayer().animateViewIntoPosition(d.dragView, view, 3087 exitSpringLoadedRunnable); 3088 resetTransitionTransform(cellLayout); 3089 } 3090 } 3091 } 3092 3093 public void setFinalTransitionTransform(CellLayout layout) { 3094 if (isSwitchingState()) { 3095 int index = indexOfChild(layout); 3096 mCurrentScaleX = layout.getScaleX(); 3097 mCurrentScaleY = layout.getScaleY(); 3098 mCurrentTranslationX = layout.getTranslationX(); 3099 mCurrentTranslationY = layout.getTranslationY(); 3100 mCurrentRotationY = layout.getRotationY(); 3101 layout.setScaleX(mNewScaleXs[index]); 3102 layout.setScaleY(mNewScaleYs[index]); 3103 layout.setTranslationX(mNewTranslationXs[index]); 3104 layout.setTranslationY(mNewTranslationYs[index]); 3105 layout.setRotationY(mNewRotationYs[index]); 3106 } 3107 } 3108 public void resetTransitionTransform(CellLayout layout) { 3109 if (isSwitchingState()) { 3110 mCurrentScaleX = layout.getScaleX(); 3111 mCurrentScaleY = layout.getScaleY(); 3112 mCurrentTranslationX = layout.getTranslationX(); 3113 mCurrentTranslationY = layout.getTranslationY(); 3114 mCurrentRotationY = layout.getRotationY(); 3115 layout.setScaleX(mCurrentScaleX); 3116 layout.setScaleY(mCurrentScaleY); 3117 layout.setTranslationX(mCurrentTranslationX); 3118 layout.setTranslationY(mCurrentTranslationY); 3119 layout.setRotationY(mCurrentRotationY); 3120 } 3121 } 3122 3123 /** 3124 * Return the current {@link CellLayout}, correctly picking the destination 3125 * screen while a scroll is in progress. 3126 */ 3127 public CellLayout getCurrentDropLayout() { 3128 return (CellLayout) getChildAt(mNextPage == INVALID_PAGE ? mCurrentPage : mNextPage); 3129 } 3130 3131 /** 3132 * Return the current CellInfo describing our current drag; this method exists 3133 * so that Launcher can sync this object with the correct info when the activity is created/ 3134 * destroyed 3135 * 3136 */ 3137 public CellLayout.CellInfo getDragInfo() { 3138 return mDragInfo; 3139 } 3140 3141 /** 3142 * Calculate the nearest cell where the given object would be dropped. 3143 * 3144 * pixelX and pixelY should be in the coordinate system of layout 3145 */ 3146 private int[] findNearestVacantArea(int pixelX, int pixelY, 3147 int spanX, int spanY, View ignoreView, CellLayout layout, int[] recycle) { 3148 return layout.findNearestVacantArea( 3149 pixelX, pixelY, spanX, spanY, ignoreView, recycle); 3150 } 3151 3152 /** 3153 * Calculate the nearest cell where the given object would be dropped. 3154 * 3155 * pixelX and pixelY should be in the coordinate system of layout 3156 */ 3157 private int[] findNearestArea(int pixelX, int pixelY, 3158 int spanX, int spanY, CellLayout layout, int[] recycle) { 3159 return layout.findNearestArea( 3160 pixelX, pixelY, spanX, spanY, recycle); 3161 } 3162 3163 void setup(Launcher launcher, DragController dragController) { 3164 mLauncher = launcher; 3165 mSpringLoadedDragController = new SpringLoadedDragController(mLauncher); 3166 mDragController = dragController; 3167 3168 // hardware layers on children are enabled on startup, but should be disabled until 3169 // needed 3170 updateChildrenLayersEnabled(); 3171 setWallpaperDimension(); 3172 } 3173 3174 /** 3175 * Called at the end of a drag which originated on the workspace. 3176 */ 3177 public void onDropCompleted(View target, DragObject d, boolean success) { 3178 if (success) { 3179 if (target != this) { 3180 if (mDragInfo != null) { 3181 getParentCellLayoutForView(mDragInfo.cell).removeView(mDragInfo.cell); 3182 if (mDragInfo.cell instanceof DropTarget) { 3183 mDragController.removeDropTarget((DropTarget) mDragInfo.cell); 3184 } 3185 } 3186 } 3187 } else if (mDragInfo != null) { 3188 // NOTE: When 'success' is true, onDragExit is called by the DragController before 3189 // calling onDropCompleted(). We call it ourselves here, but maybe this should be 3190 // moved into DragController.cancelDrag(). 3191 doDragExit(null); 3192 CellLayout cellLayout; 3193 if (mLauncher.isHotseatLayout(target)) { 3194 cellLayout = mLauncher.getHotseat().getLayout(); 3195 } else { 3196 cellLayout = (CellLayout) getChildAt(mDragInfo.screen); 3197 } 3198 cellLayout.onDropChild(mDragInfo.cell); 3199 } 3200 mDragOutline = null; 3201 mDragInfo = null; 3202 } 3203 3204 public boolean isDropEnabled() { 3205 return true; 3206 } 3207 3208 @Override 3209 protected void onRestoreInstanceState(Parcelable state) { 3210 super.onRestoreInstanceState(state); 3211 Launcher.setScreen(mCurrentPage); 3212 } 3213 3214 @Override 3215 public void scrollLeft() { 3216 if (!isSmall() && !mIsSwitchingState) { 3217 super.scrollLeft(); 3218 } 3219 Folder openFolder = getOpenFolder(); 3220 if (openFolder != null) { 3221 openFolder.completeDragExit(); 3222 } 3223 } 3224 3225 @Override 3226 public void scrollRight() { 3227 if (!isSmall() && !mIsSwitchingState) { 3228 super.scrollRight(); 3229 } 3230 Folder openFolder = getOpenFolder(); 3231 if (openFolder != null) { 3232 openFolder.completeDragExit(); 3233 } 3234 } 3235 3236 @Override 3237 public void onEnterScrollArea(int direction) { 3238 if (!isSmall() && !mIsSwitchingState) { 3239 mInScrollArea = true; 3240 3241 final int page = mCurrentPage + (direction == DragController.SCROLL_LEFT ? -1 : 1); 3242 final CellLayout layout = (CellLayout) getChildAt(page); 3243 cancelFolderCreation(); 3244 3245 if (layout != null) { 3246 // Exit the current layout and mark the overlapping layout 3247 if (mDragTargetLayout != null) { 3248 mDragTargetLayout.setIsDragOverlapping(false); 3249 mDragTargetLayout.onDragExit(); 3250 } 3251 mDragTargetLayout = layout; 3252 mDragTargetLayout.setIsDragOverlapping(true); 3253 3254 // Workspace is responsible for drawing the edge glow on adjacent pages, 3255 // so we need to redraw the workspace when this may have changed. 3256 invalidate(); 3257 } 3258 } 3259 } 3260 3261 @Override 3262 public void onExitScrollArea() { 3263 if (mInScrollArea) { 3264 if (mDragTargetLayout != null) { 3265 // Unmark the overlapping layout and re-enter the current layout 3266 mDragTargetLayout.setIsDragOverlapping(false); 3267 mDragTargetLayout = getCurrentDropLayout(); 3268 mDragTargetLayout.onDragEnter(); 3269 3270 // Workspace is responsible for drawing the edge glow on adjacent pages, 3271 // so we need to redraw the workspace when this may have changed. 3272 invalidate(); 3273 } 3274 mInScrollArea = false; 3275 } 3276 } 3277 3278 private void onResetScrollArea() { 3279 if (mDragTargetLayout != null) { 3280 // Unmark the overlapping layout 3281 mDragTargetLayout.setIsDragOverlapping(false); 3282 3283 // Workspace is responsible for drawing the edge glow on adjacent pages, 3284 // so we need to redraw the workspace when this may have changed. 3285 invalidate(); 3286 } 3287 mInScrollArea = false; 3288 } 3289 3290 /** 3291 * Returns a specific CellLayout 3292 */ 3293 CellLayout getParentCellLayoutForView(View v) { 3294 ArrayList<CellLayout> layouts = getWorkspaceAndHotseatCellLayouts(); 3295 for (CellLayout layout : layouts) { 3296 if (layout.getChildrenLayout().indexOfChild(v) > -1) { 3297 return layout; 3298 } 3299 } 3300 return null; 3301 } 3302 3303 /** 3304 * Returns a list of all the CellLayouts in the workspace. 3305 */ 3306 ArrayList<CellLayout> getWorkspaceAndHotseatCellLayouts() { 3307 ArrayList<CellLayout> layouts = new ArrayList<CellLayout>(); 3308 int screenCount = getChildCount(); 3309 for (int screen = 0; screen < screenCount; screen++) { 3310 layouts.add(((CellLayout) getChildAt(screen))); 3311 } 3312 if (mLauncher.getHotseat() != null) { 3313 layouts.add(mLauncher.getHotseat().getLayout()); 3314 } 3315 return layouts; 3316 } 3317 3318 /** 3319 * We should only use this to search for specific children. Do not use this method to modify 3320 * CellLayoutChildren directly. 3321 */ 3322 ArrayList<CellLayoutChildren> getWorkspaceAndHotseatCellLayoutChildren() { 3323 ArrayList<CellLayoutChildren> childrenLayouts = new ArrayList<CellLayoutChildren>(); 3324 int screenCount = getChildCount(); 3325 for (int screen = 0; screen < screenCount; screen++) { 3326 childrenLayouts.add(((CellLayout) getChildAt(screen)).getChildrenLayout()); 3327 } 3328 if (mLauncher.getHotseat() != null) { 3329 childrenLayouts.add(mLauncher.getHotseat().getLayout().getChildrenLayout()); 3330 } 3331 return childrenLayouts; 3332 } 3333 3334 public Folder getFolderForTag(Object tag) { 3335 ArrayList<CellLayoutChildren> childrenLayouts = getWorkspaceAndHotseatCellLayoutChildren(); 3336 for (CellLayoutChildren layout: childrenLayouts) { 3337 int count = layout.getChildCount(); 3338 for (int i = 0; i < count; i++) { 3339 View child = layout.getChildAt(i); 3340 if (child instanceof Folder) { 3341 Folder f = (Folder) child; 3342 if (f.getInfo() == tag && f.getInfo().opened) { 3343 return f; 3344 } 3345 } 3346 } 3347 } 3348 return null; 3349 } 3350 3351 public View getViewForTag(Object tag) { 3352 ArrayList<CellLayoutChildren> childrenLayouts = getWorkspaceAndHotseatCellLayoutChildren(); 3353 for (CellLayoutChildren layout: childrenLayouts) { 3354 int count = layout.getChildCount(); 3355 for (int i = 0; i < count; i++) { 3356 View child = layout.getChildAt(i); 3357 if (child.getTag() == tag) { 3358 return child; 3359 } 3360 } 3361 } 3362 return null; 3363 } 3364 3365 void clearDropTargets() { 3366 ArrayList<CellLayoutChildren> childrenLayouts = getWorkspaceAndHotseatCellLayoutChildren(); 3367 for (CellLayoutChildren layout: childrenLayouts) { 3368 int childCount = layout.getChildCount(); 3369 for (int j = 0; j < childCount; j++) { 3370 View v = layout.getChildAt(j); 3371 if (v instanceof DropTarget) { 3372 mDragController.removeDropTarget((DropTarget) v); 3373 } 3374 } 3375 } 3376 } 3377 3378 void removeItems(final ArrayList<ApplicationInfo> apps) { 3379 final AppWidgetManager widgets = AppWidgetManager.getInstance(getContext()); 3380 3381 final HashSet<String> packageNames = new HashSet<String>(); 3382 final int appCount = apps.size(); 3383 for (int i = 0; i < appCount; i++) { 3384 packageNames.add(apps.get(i).componentName.getPackageName()); 3385 } 3386 3387 ArrayList<CellLayout> cellLayouts = getWorkspaceAndHotseatCellLayouts(); 3388 for (final CellLayout layoutParent: cellLayouts) { 3389 final ViewGroup layout = layoutParent.getChildrenLayout(); 3390 3391 // Avoid ANRs by treating each screen separately 3392 post(new Runnable() { 3393 public void run() { 3394 final ArrayList<View> childrenToRemove = new ArrayList<View>(); 3395 childrenToRemove.clear(); 3396 3397 int childCount = layout.getChildCount(); 3398 for (int j = 0; j < childCount; j++) { 3399 final View view = layout.getChildAt(j); 3400 Object tag = view.getTag(); 3401 3402 if (tag instanceof ShortcutInfo) { 3403 final ShortcutInfo info = (ShortcutInfo) tag; 3404 final Intent intent = info.intent; 3405 final ComponentName name = intent.getComponent(); 3406 3407 if (Intent.ACTION_MAIN.equals(intent.getAction()) && name != null) { 3408 for (String packageName: packageNames) { 3409 if (packageName.equals(name.getPackageName())) { 3410 LauncherModel.deleteItemFromDatabase(mLauncher, info); 3411 childrenToRemove.add(view); 3412 } 3413 } 3414 } 3415 } else if (tag instanceof FolderInfo) { 3416 final FolderInfo info = (FolderInfo) tag; 3417 final ArrayList<ShortcutInfo> contents = info.contents; 3418 final int contentsCount = contents.size(); 3419 final ArrayList<ShortcutInfo> appsToRemoveFromFolder = 3420 new ArrayList<ShortcutInfo>(); 3421 3422 for (int k = 0; k < contentsCount; k++) { 3423 final ShortcutInfo appInfo = contents.get(k); 3424 final Intent intent = appInfo.intent; 3425 final ComponentName name = intent.getComponent(); 3426 3427 if (Intent.ACTION_MAIN.equals(intent.getAction()) && name != null) { 3428 for (String packageName: packageNames) { 3429 if (packageName.equals(name.getPackageName())) { 3430 appsToRemoveFromFolder.add(appInfo); 3431 } 3432 } 3433 } 3434 } 3435 for (ShortcutInfo item: appsToRemoveFromFolder) { 3436 info.remove(item); 3437 LauncherModel.deleteItemFromDatabase(mLauncher, item); 3438 } 3439 } else if (tag instanceof LauncherAppWidgetInfo) { 3440 final LauncherAppWidgetInfo info = (LauncherAppWidgetInfo) tag; 3441 final AppWidgetProviderInfo provider = 3442 widgets.getAppWidgetInfo(info.appWidgetId); 3443 if (provider != null) { 3444 for (String packageName: packageNames) { 3445 if (packageName.equals(provider.provider.getPackageName())) { 3446 LauncherModel.deleteItemFromDatabase(mLauncher, info); 3447 childrenToRemove.add(view); 3448 } 3449 } 3450 } 3451 } 3452 } 3453 3454 childCount = childrenToRemove.size(); 3455 for (int j = 0; j < childCount; j++) { 3456 View child = childrenToRemove.get(j); 3457 // Note: We can not remove the view directly from CellLayoutChildren as this 3458 // does not re-mark the spaces as unoccupied. 3459 layoutParent.removeViewInLayout(child); 3460 if (child instanceof DropTarget) { 3461 mDragController.removeDropTarget((DropTarget)child); 3462 } 3463 } 3464 3465 if (childCount > 0) { 3466 layout.requestLayout(); 3467 layout.invalidate(); 3468 } 3469 } 3470 }); 3471 } 3472 } 3473 3474 void updateShortcuts(ArrayList<ApplicationInfo> apps) { 3475 ArrayList<CellLayoutChildren> childrenLayouts = getWorkspaceAndHotseatCellLayoutChildren(); 3476 for (CellLayoutChildren layout: childrenLayouts) { 3477 int childCount = layout.getChildCount(); 3478 for (int j = 0; j < childCount; j++) { 3479 final View view = layout.getChildAt(j); 3480 Object tag = view.getTag(); 3481 if (tag instanceof ShortcutInfo) { 3482 ShortcutInfo info = (ShortcutInfo)tag; 3483 // We need to check for ACTION_MAIN otherwise getComponent() might 3484 // return null for some shortcuts (for instance, for shortcuts to 3485 // web pages.) 3486 final Intent intent = info.intent; 3487 final ComponentName name = intent.getComponent(); 3488 if (info.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPLICATION && 3489 Intent.ACTION_MAIN.equals(intent.getAction()) && name != null) { 3490 final int appCount = apps.size(); 3491 for (int k = 0; k < appCount; k++) { 3492 ApplicationInfo app = apps.get(k); 3493 if (app.componentName.equals(name)) { 3494 info.setIcon(mIconCache.getIcon(info.intent)); 3495 ((TextView)view).setCompoundDrawablesWithIntrinsicBounds(null, 3496 new FastBitmapDrawable(info.getIcon(mIconCache)), 3497 null, null); 3498 } 3499 } 3500 } 3501 } 3502 } 3503 } 3504 } 3505 3506 void moveToDefaultScreen(boolean animate) { 3507 if (!isSmall()) { 3508 if (animate) { 3509 snapToPage(mDefaultPage); 3510 } else { 3511 setCurrentPage(mDefaultPage); 3512 } 3513 } 3514 getChildAt(mDefaultPage).requestFocus(); 3515 } 3516 3517 @Override 3518 public void syncPages() { 3519 } 3520 3521 @Override 3522 public void syncPageItems(int page) { 3523 } 3524 3525 @Override 3526 protected String getCurrentPageDescription() { 3527 int page = (mNextPage != INVALID_PAGE) ? mNextPage : mCurrentPage; 3528 return String.format(mContext.getString(R.string.workspace_scroll_format), 3529 page + 1, getChildCount()); 3530 } 3531 3532 public void getLocationInDragLayer(int[] loc) { 3533 mLauncher.getDragLayer().getLocationInDragLayer(this, loc); 3534 } 3535 3536 /** 3537 * Return true because we want the scrolling indicator to stretch to fit the space. 3538 */ 3539 protected boolean hasElasticScrollIndicator() { 3540 return true; 3541 } 3542 3543 void showDockDivider(boolean immediately) { 3544 final ViewGroup parent = (ViewGroup) getParent(); 3545 final View qsbDivider = (ImageView) (parent.findViewById(R.id.qsb_divider)); 3546 final View dockDivider = (ImageView) (parent.findViewById(R.id.dock_divider)); 3547 if (qsbDivider != null && dockDivider != null) { 3548 qsbDivider.setVisibility(View.VISIBLE); 3549 dockDivider.setVisibility(View.VISIBLE); 3550 if (mDividerAnimator != null) { 3551 mDividerAnimator.cancel(); 3552 mDividerAnimator = null; 3553 } 3554 if (immediately) { 3555 qsbDivider.setAlpha(1f); 3556 dockDivider.setAlpha(1f); 3557 } else { 3558 mDividerAnimator = new AnimatorSet(); 3559 mDividerAnimator.playTogether(ObjectAnimator.ofFloat(qsbDivider, "alpha", 1f), 3560 ObjectAnimator.ofFloat(dockDivider, "alpha", 1f)); 3561 mDividerAnimator.setDuration(sScrollIndicatorFadeInDuration); 3562 mDividerAnimator.start(); 3563 } 3564 } 3565 } 3566 3567 void hideDockDivider(boolean immediately) { 3568 final ViewGroup parent = (ViewGroup) getParent(); 3569 final View qsbDivider = (ImageView) (parent.findViewById(R.id.qsb_divider)); 3570 final View dockDivider = (ImageView) (parent.findViewById(R.id.dock_divider)); 3571 if (qsbDivider != null && dockDivider != null) { 3572 if (mDividerAnimator != null) { 3573 mDividerAnimator.cancel(); 3574 mDividerAnimator = null; 3575 } 3576 if (immediately) { 3577 qsbDivider.setVisibility(View.GONE); 3578 dockDivider.setVisibility(View.GONE); 3579 qsbDivider.setAlpha(0f); 3580 dockDivider.setAlpha(0f); 3581 } else { 3582 mDividerAnimator = new AnimatorSet(); 3583 mDividerAnimator.playTogether(ObjectAnimator.ofFloat(qsbDivider, "alpha", 0f), 3584 ObjectAnimator.ofFloat(dockDivider, "alpha", 0f)); 3585 mDividerAnimator.addListener(new AnimatorListenerAdapter() { 3586 private boolean cancelled = false; 3587 @Override 3588 public void onAnimationCancel(android.animation.Animator animation) { 3589 cancelled = true; 3590 } 3591 @Override 3592 public void onAnimationEnd(android.animation.Animator animation) { 3593 if (!cancelled) { 3594 qsbDivider.setVisibility(View.GONE); 3595 dockDivider.setVisibility(View.GONE); 3596 } 3597 } 3598 }); 3599 mDividerAnimator.setDuration(sScrollIndicatorFadeOutDuration); 3600 mDividerAnimator.start(); 3601 } 3602 } 3603 } 3604} 3605