Workspace.java revision 7bdb25a9894970da74248c9cdc606d0e1ba05c99
1/* 2 * Copyright (C) 2008 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17package com.android.launcher2; 18 19import android.animation.Animator; 20import android.animation.AnimatorListenerAdapter; 21import android.animation.AnimatorSet; 22import android.animation.ObjectAnimator; 23import android.animation.TimeInterpolator; 24import android.animation.ValueAnimator; 25import android.animation.Animator.AnimatorListener; 26import android.animation.ValueAnimator.AnimatorUpdateListener; 27import android.app.AlertDialog; 28import android.app.WallpaperManager; 29import android.appwidget.AppWidgetManager; 30import android.appwidget.AppWidgetProviderInfo; 31import android.content.ClipData; 32import android.content.ClipDescription; 33import android.content.ComponentName; 34import android.content.Context; 35import android.content.Intent; 36import android.content.pm.PackageManager; 37import android.content.res.Resources; 38import android.content.res.TypedArray; 39import android.graphics.Bitmap; 40import android.graphics.Camera; 41import android.graphics.Canvas; 42import android.graphics.Color; 43import android.graphics.Matrix; 44import android.graphics.Paint; 45import android.graphics.Rect; 46import android.graphics.RectF; 47import android.graphics.Region.Op; 48import android.graphics.drawable.Drawable; 49import android.os.IBinder; 50import android.os.Parcelable; 51import android.util.AttributeSet; 52import android.util.DisplayMetrics; 53import android.util.Log; 54import android.util.Pair; 55import android.view.Display; 56import android.view.DragEvent; 57import android.view.MotionEvent; 58import android.view.View; 59import android.view.ViewGroup; 60import android.view.animation.DecelerateInterpolator; 61import android.widget.ImageView; 62import android.widget.TextView; 63import android.widget.Toast; 64 65import com.android.launcher.R; 66import com.android.launcher2.FolderIcon.FolderRingAnimator; 67import com.android.launcher2.InstallWidgetReceiver.WidgetMimeTypeHandlerData; 68 69import java.util.ArrayList; 70import java.util.HashSet; 71import java.util.List; 72 73/** 74 * The workspace is a wide area with a wallpaper and a finite number of pages. 75 * Each page contains a number of icons, folders or widgets the user can 76 * interact with. A workspace is meant to be used with a fixed width only. 77 */ 78public class Workspace extends SmoothPagedView 79 implements DropTarget, DragSource, DragScroller, View.OnTouchListener, 80 DragController.DragListener { 81 @SuppressWarnings({"UnusedDeclaration"}) 82 private static final String TAG = "Launcher.Workspace"; 83 84 // Y rotation to apply to the workspace screens 85 private static final float WORKSPACE_ROTATION = 12.5f; 86 87 // These are extra scale factors to apply to the mini home screens 88 // so as to achieve the desired transform 89 private static final float EXTRA_SCALE_FACTOR_0 = 0.972f; 90 private static final float EXTRA_SCALE_FACTOR_1 = 1.0f; 91 private static final float EXTRA_SCALE_FACTOR_2 = 1.10f; 92 93 private static final int CHILDREN_OUTLINE_FADE_OUT_DELAY = 0; 94 private static final int CHILDREN_OUTLINE_FADE_OUT_DURATION = 375; 95 private static final int CHILDREN_OUTLINE_FADE_IN_DURATION = 100; 96 97 private static final int BACKGROUND_FADE_OUT_DURATION = 350; 98 private static final int BACKGROUND_FADE_IN_DURATION = 350; 99 100 private static final int ADJACENT_SCREEN_DROP_DURATION = 300; 101 102 // These animators are used to fade the children's outlines 103 private ObjectAnimator mChildrenOutlineFadeInAnimation; 104 private ObjectAnimator mChildrenOutlineFadeOutAnimation; 105 private float mChildrenOutlineAlpha = 0; 106 107 // These properties refer to the background protection gradient used for AllApps and Customize 108 private ValueAnimator mBackgroundFadeInAnimation; 109 private ValueAnimator mBackgroundFadeOutAnimation; 110 private Drawable mBackground; 111 boolean mDrawBackground = true; 112 private float mBackgroundAlpha = 0; 113 private float mOverScrollMaxBackgroundAlpha = 0.0f; 114 private int mOverScrollPageIndex = -1; 115 private AnimatorSet mDividerAnimator; 116 117 private final WallpaperManager mWallpaperManager; 118 private IBinder mWindowToken; 119 120 private int mDefaultPage; 121 122 /** 123 * CellInfo for the cell that is currently being dragged 124 */ 125 private CellLayout.CellInfo mDragInfo; 126 127 /** 128 * Target drop area calculated during last acceptDrop call. 129 */ 130 private int[] mTargetCell = new int[2]; 131 132 /** 133 * The CellLayout that is currently being dragged over 134 */ 135 private CellLayout mDragTargetLayout = null; 136 137 private Launcher mLauncher; 138 private IconCache mIconCache; 139 private DragController mDragController; 140 141 // These are temporary variables to prevent having to allocate a new object just to 142 // return an (x, y) value from helper functions. Do NOT use them to maintain other state. 143 private int[] mTempCell = new int[2]; 144 private int[] mTempEstimate = new int[2]; 145 private float[] mDragViewVisualCenter = new float[2]; 146 private float[] mTempDragCoordinates = new float[2]; 147 private float[] mTempCellLayoutCenterCoordinates = new float[2]; 148 private float[] mTempDragBottomRightCoordinates = new float[2]; 149 private Matrix mTempInverseMatrix = new Matrix(); 150 151 private SpringLoadedDragController mSpringLoadedDragController; 152 private float mSpringLoadedShrinkFactor; 153 154 private static final int DEFAULT_CELL_COUNT_X = 4; 155 private static final int DEFAULT_CELL_COUNT_Y = 4; 156 157 // State variable that indicates whether the pages are small (ie when you're 158 // in all apps or customize mode) 159 160 enum State { NORMAL, SPRING_LOADED, SMALL }; 161 private State mState; 162 private boolean mIsSwitchingState = false; 163 164 private boolean mSwitchStateAfterFirstLayout = false; 165 private State mStateAfterFirstLayout; 166 167 private AnimatorSet mAnimator; 168 private AnimatorListener mShrinkAnimationListener; 169 private AnimatorListener mUnshrinkAnimationListener; 170 // Working around the face that cancelled animations may not actually be cancelled if they 171 // are cancelled before starting 172 private boolean mShrinkAnimationEnabled; 173 private boolean mUnshrinkAnimationEnabled; 174 175 boolean mAnimatingViewIntoPlace = false; 176 boolean mIsDragOccuring = false; 177 boolean mChildrenLayersEnabled = true; 178 179 /** Is the user is dragging an item near the edge of a page? */ 180 private boolean mInScrollArea = false; 181 182 private final HolographicOutlineHelper mOutlineHelper = new HolographicOutlineHelper(); 183 private Bitmap mDragOutline = null; 184 private final Rect mTempRect = new Rect(); 185 private final int[] mTempXY = new int[2]; 186 187 // Paint used to draw external drop outline 188 private final Paint mExternalDragOutlinePaint = new Paint(); 189 190 // Camera and Matrix used to determine the final position of a neighboring CellLayout 191 private final Matrix mMatrix = new Matrix(); 192 private final Camera mCamera = new Camera(); 193 private final float mTempFloat2[] = new float[2]; 194 195 enum WallpaperVerticalOffset { TOP, MIDDLE, BOTTOM }; 196 int mWallpaperWidth; 197 int mWallpaperHeight; 198 WallpaperOffsetInterpolator mWallpaperOffset; 199 boolean mUpdateWallpaperOffsetImmediately = false; 200 boolean mSyncWallpaperOffsetWithScroll = true; 201 private Runnable mDelayedResizeRunnable; 202 203 // Variables relating to the creation of user folders by hovering shortcuts over shortcuts 204 private static final int FOLDER_CREATION_TIMEOUT = 250; 205 private final Alarm mFolderCreationAlarm = new Alarm(); 206 private FolderRingAnimator mDragFolderRingAnimator = null; 207 private View mLastDragOverView = null; 208 private boolean mCreateUserFolderOnDrop = false; 209 210 // Variables relating to touch disambiguation (scrolling workspace vs. scrolling a widget) 211 private float mXDown; 212 private float mYDown; 213 final static float START_DAMPING_TOUCH_SLOP_ANGLE = (float) Math.PI / 6; 214 final static float MAX_SWIPE_ANGLE = (float) Math.PI / 3; 215 final static float TOUCH_SLOP_DAMPING_FACTOR = 4; 216 217 // These variables are used for storing the initial and final values during workspace animations 218 private int mSavedScrollX; 219 private float mSavedRotationY; 220 private float mSavedTranslationX; 221 private float mCurrentScaleX; 222 private float mCurrentScaleY; 223 private float mCurrentRotationY; 224 private float mCurrentTranslationX; 225 private float mCurrentTranslationY; 226 private float[] mOldTranslationXs; 227 private float[] mOldTranslationYs; 228 private float[] mOldScaleXs; 229 private float[] mOldScaleYs; 230 private float[] mOldBackgroundAlphas; 231 private float[] mOldBackgroundAlphaMultipliers; 232 private float[] mOldAlphas; 233 private float[] mOldRotationYs; 234 private float[] mNewTranslationXs; 235 private float[] mNewTranslationYs; 236 private float[] mNewScaleXs; 237 private float[] mNewScaleYs; 238 private float[] mNewBackgroundAlphas; 239 private float[] mNewBackgroundAlphaMultipliers; 240 private float[] mNewAlphas; 241 private float[] mNewRotationYs; 242 private float mTransitionProgress; 243 244 /** 245 * Used to inflate the Workspace from XML. 246 * 247 * @param context The application's context. 248 * @param attrs The attributes set containing the Workspace's customization values. 249 */ 250 public Workspace(Context context, AttributeSet attrs) { 251 this(context, attrs, 0); 252 } 253 254 /** 255 * Used to inflate the Workspace from XML. 256 * 257 * @param context The application's context. 258 * @param attrs The attributes set containing the Workspace's customization values. 259 * @param defStyle Unused. 260 */ 261 public Workspace(Context context, AttributeSet attrs, int defStyle) { 262 super(context, attrs, defStyle); 263 mContentIsRefreshable = false; 264 265 // With workspace, data is available straight from the get-go 266 setDataIsReady(); 267 268 if (!LauncherApplication.isScreenLarge()) { 269 mCenterPagesVertically = false; 270 if (!LauncherApplication.isScreenLandscape(context)) { 271 mFadeInAdjacentScreens = false; 272 } 273 } 274 275 mWallpaperManager = WallpaperManager.getInstance(context); 276 277 int cellCountX = DEFAULT_CELL_COUNT_X; 278 int cellCountY = DEFAULT_CELL_COUNT_Y; 279 280 TypedArray a = context.obtainStyledAttributes(attrs, 281 R.styleable.Workspace, defStyle, 0); 282 283 final Resources res = context.getResources(); 284 if (LauncherApplication.isScreenLarge()) { 285 // Determine number of rows/columns dynamically 286 // TODO: This code currently fails on tablets with an aspect ratio < 1.3. 287 // Around that ratio we should make cells the same size in portrait and 288 // landscape 289 TypedArray actionBarSizeTypedArray = 290 context.obtainStyledAttributes(new int[] { android.R.attr.actionBarSize }); 291 final float actionBarHeight = actionBarSizeTypedArray.getDimension(0, 0f); 292 final float systemBarHeight = res.getDimension(R.dimen.status_bar_height); 293 final float smallestScreenDim = res.getConfiguration().smallestScreenWidthDp; 294 295 cellCountX = 1; 296 while (CellLayout.widthInPortrait(res, cellCountX + 1) <= smallestScreenDim) { 297 cellCountX++; 298 } 299 300 cellCountY = 1; 301 while (actionBarHeight + CellLayout.heightInLandscape(res, cellCountY + 1) 302 <= smallestScreenDim - systemBarHeight) { 303 cellCountY++; 304 } 305 } 306 307 mSpringLoadedShrinkFactor = 308 res.getInteger(R.integer.config_workspaceSpringLoadShrinkPercentage) / 100.0f; 309 310 // if the value is manually specified, use that instead 311 cellCountX = a.getInt(R.styleable.Workspace_cellCountX, cellCountX); 312 cellCountY = a.getInt(R.styleable.Workspace_cellCountY, cellCountY); 313 mDefaultPage = a.getInt(R.styleable.Workspace_defaultScreen, 1); 314 a.recycle(); 315 316 LauncherModel.updateWorkspaceLayoutCells(cellCountX, cellCountY); 317 setHapticFeedbackEnabled(false); 318 319 initWorkspace(); 320 321 // Disable multitouch across the workspace/all apps/customize tray 322 setMotionEventSplittingEnabled(true); 323 } 324 325 public void onDragStart(DragSource source, Object info, int dragAction) { 326 mIsDragOccuring = true; 327 updateChildrenLayersEnabled(); 328 mLauncher.lockScreenOrientation(); 329 } 330 331 public void onDragEnd() { 332 mIsDragOccuring = false; 333 updateChildrenLayersEnabled(); 334 mLauncher.unlockScreenOrientation(); 335 } 336 337 /** 338 * Initializes various states for this workspace. 339 */ 340 protected void initWorkspace() { 341 Context context = getContext(); 342 mCurrentPage = mDefaultPage; 343 Launcher.setScreen(mCurrentPage); 344 LauncherApplication app = (LauncherApplication)context.getApplicationContext(); 345 mIconCache = app.getIconCache(); 346 mExternalDragOutlinePaint.setAntiAlias(true); 347 setWillNotDraw(false); 348 349 try { 350 final Resources res = getResources(); 351 mBackground = res.getDrawable(R.drawable.apps_customize_bg); 352 } catch (Resources.NotFoundException e) { 353 // In this case, we will skip drawing background protection 354 } 355 356 mUnshrinkAnimationListener = new AnimatorListenerAdapter() { 357 @Override 358 public void onAnimationStart(Animator animation) { 359 mIsSwitchingState = true; 360 } 361 362 @Override 363 public void onAnimationEnd(Animator animation) { 364 mIsSwitchingState = false; 365 mSyncWallpaperOffsetWithScroll = true; 366 mWallpaperOffset.setOverrideHorizontalCatchupConstant(false); 367 mAnimator = null; 368 updateChildrenLayersEnabled(); 369 } 370 }; 371 mShrinkAnimationListener = new AnimatorListenerAdapter() { 372 @Override 373 public void onAnimationStart(Animator animation) { 374 mIsSwitchingState = true; 375 } 376 @Override 377 public void onAnimationEnd(Animator animation) { 378 mIsSwitchingState = false; 379 mWallpaperOffset.setOverrideHorizontalCatchupConstant(false); 380 mAnimator = null; 381 } 382 }; 383 mSnapVelocity = 600; 384 mWallpaperOffset = new WallpaperOffsetInterpolator(); 385 } 386 387 @Override 388 protected int getScrollMode() { 389 return SmoothPagedView.X_LARGE_MODE; 390 } 391 392 private void onAddView(View child) { 393 if (!(child instanceof CellLayout)) { 394 throw new IllegalArgumentException("A Workspace can only have CellLayout children."); 395 } 396 CellLayout cl = ((CellLayout) child); 397 cl.setOnInterceptTouchListener(this); 398 cl.setClickable(true); 399 cl.enableHardwareLayers(); 400 } 401 402 @Override 403 public void addView(View child, int index, LayoutParams params) { 404 onAddView(child); 405 super.addView(child, index, params); 406 } 407 408 @Override 409 public void addView(View child) { 410 onAddView(child); 411 super.addView(child); 412 } 413 414 @Override 415 public void addView(View child, int index) { 416 onAddView(child); 417 super.addView(child, index); 418 } 419 420 @Override 421 public void addView(View child, int width, int height) { 422 onAddView(child); 423 super.addView(child, width, height); 424 } 425 426 @Override 427 public void addView(View child, LayoutParams params) { 428 onAddView(child); 429 super.addView(child, params); 430 } 431 432 /** 433 * @return The open folder on the current screen, or null if there is none 434 */ 435 Folder getOpenFolder() { 436 DragLayer dragLayer = mLauncher.getDragLayer(); 437 int count = dragLayer.getChildCount(); 438 for (int i = 0; i < count; i++) { 439 View child = dragLayer.getChildAt(i); 440 if (child instanceof Folder) { 441 Folder folder = (Folder) child; 442 if (folder.getInfo().opened) 443 return folder; 444 } 445 } 446 return null; 447 } 448 449 boolean isTouchActive() { 450 return mTouchState != TOUCH_STATE_REST; 451 } 452 453 /** 454 * Adds the specified child in the specified screen. The position and dimension of 455 * the child are defined by x, y, spanX and spanY. 456 * 457 * @param child The child to add in one of the workspace's screens. 458 * @param screen The screen in which to add the child. 459 * @param x The X position of the child in the screen's grid. 460 * @param y The Y position of the child in the screen's grid. 461 * @param spanX The number of cells spanned horizontally by the child. 462 * @param spanY The number of cells spanned vertically by the child. 463 */ 464 void addInScreen(View child, long container, int screen, int x, int y, int spanX, int spanY) { 465 addInScreen(child, container, screen, x, y, spanX, spanY, false); 466 } 467 468 /** 469 * Adds the specified child in the specified screen. The position and dimension of 470 * the child are defined by x, y, spanX and spanY. 471 * 472 * @param child The child to add in one of the workspace's screens. 473 * @param screen The screen in which to add the child. 474 * @param x The X position of the child in the screen's grid. 475 * @param y The Y position of the child in the screen's grid. 476 * @param spanX The number of cells spanned horizontally by the child. 477 * @param spanY The number of cells spanned vertically by the child. 478 * @param insert When true, the child is inserted at the beginning of the children list. 479 */ 480 void addInScreen(View child, long container, int screen, int x, int y, int spanX, int spanY, 481 boolean insert) { 482 if (container == LauncherSettings.Favorites.CONTAINER_DESKTOP) { 483 if (screen < 0 || screen >= getChildCount()) { 484 Log.e(TAG, "The screen must be >= 0 and < " + getChildCount() 485 + " (was " + screen + "); skipping child"); 486 return; 487 } 488 } 489 490 final CellLayout layout; 491 if (container == LauncherSettings.Favorites.CONTAINER_HOTSEAT) { 492 layout = mLauncher.getHotseat().getLayout(); 493 child.setOnKeyListener(null); 494 495 if (screen < 0) { 496 screen = mLauncher.getHotseat().getOrderInHotseat(x, y); 497 } else { 498 // Note: We do this to ensure that the hotseat is always laid out in the orientation 499 // of the hotseat in order regardless of which orientation they were added 500 x = mLauncher.getHotseat().getCellXFromOrder(screen); 501 y = mLauncher.getHotseat().getCellYFromOrder(screen); 502 } 503 } else { 504 layout = (CellLayout) getChildAt(screen); 505 child.setOnKeyListener(new BubbleTextViewKeyEventListener()); 506 } 507 508 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) child.getLayoutParams(); 509 if (lp == null) { 510 lp = new CellLayout.LayoutParams(x, y, spanX, spanY); 511 } else { 512 lp.cellX = x; 513 lp.cellY = y; 514 lp.cellHSpan = spanX; 515 lp.cellVSpan = spanY; 516 } 517 518 if (spanX < 0 && spanY < 0) { 519 lp.isLockedToGrid = false; 520 } 521 522 // Get the canonical child id to uniquely represent this view in this screen 523 int childId = LauncherModel.getCellLayoutChildId(container, screen, x, y, spanX, spanY); 524 boolean markCellsAsOccupied = !(child instanceof Folder); 525 if (!layout.addViewToCellLayout(child, insert ? 0 : -1, childId, lp, markCellsAsOccupied)) { 526 // TODO: This branch occurs when the workspace is adding views 527 // outside of the defined grid 528 // maybe we should be deleting these items from the LauncherModel? 529 Log.w(TAG, "Failed to add to item at (" + lp.cellX + "," + lp.cellY + ") to CellLayout"); 530 } 531 532 if (!(child instanceof Folder)) { 533 child.setHapticFeedbackEnabled(false); 534 child.setOnLongClickListener(mLongClickListener); 535 } 536 if (child instanceof DropTarget) { 537 mDragController.addDropTarget((DropTarget) child); 538 } 539 } 540 541 /** 542 * Check if the point (x, y) hits a given page. 543 */ 544 private boolean hitsPage(int index, float x, float y) { 545 final View page = getChildAt(index); 546 if (page != null) { 547 float[] localXY = { x, y }; 548 mapPointFromSelfToChild(page, localXY); 549 return (localXY[0] >= 0 && localXY[0] < page.getWidth() 550 && localXY[1] >= 0 && localXY[1] < page.getHeight()); 551 } 552 return false; 553 } 554 555 @Override 556 protected boolean hitsPreviousPage(float x, float y) { 557 // mNextPage is set to INVALID_PAGE whenever we are stationary. 558 // Calculating "next page" this way ensures that you scroll to whatever page you tap on 559 final int current = (mNextPage == INVALID_PAGE) ? mCurrentPage : mNextPage; 560 return hitsPage(current - 1, x, y); 561 } 562 563 @Override 564 protected boolean hitsNextPage(float x, float y) { 565 // mNextPage is set to INVALID_PAGE whenever we are stationary. 566 // Calculating "next page" this way ensures that you scroll to whatever page you tap on 567 final int current = (mNextPage == INVALID_PAGE) ? mCurrentPage : mNextPage; 568 return hitsPage(current + 1, x, y); 569 } 570 571 /** 572 * Called directly from a CellLayout (not by the framework), after we've been added as a 573 * listener via setOnInterceptTouchEventListener(). This allows us to tell the CellLayout 574 * that it should intercept touch events, which is not something that is normally supported. 575 */ 576 @Override 577 public boolean onTouch(View v, MotionEvent event) { 578 return (isSmall() || mIsSwitchingState); 579 } 580 581 public boolean isSwitchingState() { 582 return mIsSwitchingState; 583 } 584 585 protected void onWindowVisibilityChanged (int visibility) { 586 mLauncher.onWindowVisibilityChanged(visibility); 587 } 588 589 @Override 590 public boolean dispatchUnhandledMove(View focused, int direction) { 591 if (isSmall() || mIsSwitchingState) { 592 // when the home screens are shrunken, shouldn't allow side-scrolling 593 return false; 594 } 595 return super.dispatchUnhandledMove(focused, direction); 596 } 597 598 @Override 599 public boolean onInterceptTouchEvent(MotionEvent ev) { 600 if (ev.getAction() == MotionEvent.ACTION_DOWN) { 601 mXDown = ev.getX(); 602 mYDown = ev.getY(); 603 } 604 605 return super.onInterceptTouchEvent(ev); 606 } 607 608 @Override 609 protected void determineScrollingStart(MotionEvent ev) { 610 if (!isSmall() && !mIsSwitchingState) { 611 float deltaX = Math.abs(ev.getX() - mXDown); 612 float deltaY = Math.abs(ev.getY() - mYDown); 613 614 if (Float.compare(deltaX, 0f) == 0) return; 615 616 float slope = deltaY / deltaX; 617 float theta = (float) Math.atan(slope); 618 619 if (deltaX > mTouchSlop || deltaY > mTouchSlop) { 620 cancelCurrentPageLongPress(); 621 } 622 623 if (theta > MAX_SWIPE_ANGLE) { 624 // Above MAX_SWIPE_ANGLE, we don't want to ever start scrolling the workspace 625 return; 626 } else if (theta > START_DAMPING_TOUCH_SLOP_ANGLE) { 627 // Above START_DAMPING_TOUCH_SLOP_ANGLE and below MAX_SWIPE_ANGLE, we want to 628 // increase the touch slop to make it harder to begin scrolling the workspace. This 629 // results in vertically scrolling widgets to more easily. The higher the angle, the 630 // more we increase touch slop. 631 theta -= START_DAMPING_TOUCH_SLOP_ANGLE; 632 float extraRatio = (float) 633 Math.sqrt((theta / (MAX_SWIPE_ANGLE - START_DAMPING_TOUCH_SLOP_ANGLE))); 634 super.determineScrollingStart(ev, 1 + TOUCH_SLOP_DAMPING_FACTOR * extraRatio); 635 } else { 636 // Below START_DAMPING_TOUCH_SLOP_ANGLE, we don't do anything special 637 super.determineScrollingStart(ev); 638 } 639 } 640 } 641 642 @Override 643 protected boolean isScrollingIndicatorEnabled() { 644 return mState != State.SPRING_LOADED; 645 } 646 647 protected void onPageBeginMoving() { 648 super.onPageBeginMoving(); 649 650 if (isHardwareAccelerated()) { 651 updateChildrenLayersEnabled(); 652 } else { 653 if (mNextPage != INVALID_PAGE) { 654 // we're snapping to a particular screen 655 enableChildrenCache(mCurrentPage, mNextPage); 656 } else { 657 // this is when user is actively dragging a particular screen, they might 658 // swipe it either left or right (but we won't advance by more than one screen) 659 enableChildrenCache(mCurrentPage - 1, mCurrentPage + 1); 660 } 661 } 662 663 // Only show page outlines as we pan if we are on large screen 664 if (LauncherApplication.isScreenLarge()) { 665 showOutlines(); 666 } 667 } 668 669 protected void onPageEndMoving() { 670 super.onPageEndMoving(); 671 672 if (isHardwareAccelerated()) { 673 updateChildrenLayersEnabled(); 674 } else { 675 clearChildrenCache(); 676 } 677 678 // Hide the outlines, as long as we're not dragging 679 if (!mDragController.dragging()) { 680 // Only hide page outlines as we pan if we are on large screen 681 if (LauncherApplication.isScreenLarge()) { 682 hideOutlines(); 683 } 684 } 685 mOverScrollMaxBackgroundAlpha = 0.0f; 686 mOverScrollPageIndex = -1; 687 688 if (mDelayedResizeRunnable != null) { 689 mDelayedResizeRunnable.run(); 690 mDelayedResizeRunnable = null; 691 } 692 } 693 694 @Override 695 protected void notifyPageSwitchListener() { 696 super.notifyPageSwitchListener(); 697 Launcher.setScreen(mCurrentPage); 698 }; 699 700 // As a ratio of screen height, the total distance we want the parallax effect to span 701 // vertically 702 private float wallpaperTravelToScreenHeightRatio(int width, int height) { 703 return 1.1f; 704 } 705 706 // As a ratio of screen height, the total distance we want the parallax effect to span 707 // horizontally 708 private float wallpaperTravelToScreenWidthRatio(int width, int height) { 709 float aspectRatio = width / (float) height; 710 711 // At an aspect ratio of 16/10, the wallpaper parallax effect should span 1.5 * screen width 712 // At an aspect ratio of 10/16, the wallpaper parallax effect should span 1.2 * screen width 713 // We will use these two data points to extrapolate how much the wallpaper parallax effect 714 // to span (ie travel) at any aspect ratio: 715 716 final float ASPECT_RATIO_LANDSCAPE = 16/10f; 717 final float ASPECT_RATIO_PORTRAIT = 10/16f; 718 final float WALLPAPER_WIDTH_TO_SCREEN_RATIO_LANDSCAPE = 1.5f; 719 final float WALLPAPER_WIDTH_TO_SCREEN_RATIO_PORTRAIT = 1.2f; 720 721 // To find out the desired width at different aspect ratios, we use the following two 722 // formulas, where the coefficient on x is the aspect ratio (width/height): 723 // (16/10)x + y = 1.5 724 // (10/16)x + y = 1.2 725 // We solve for x and y and end up with a final formula: 726 final float x = 727 (WALLPAPER_WIDTH_TO_SCREEN_RATIO_LANDSCAPE - WALLPAPER_WIDTH_TO_SCREEN_RATIO_PORTRAIT) / 728 (ASPECT_RATIO_LANDSCAPE - ASPECT_RATIO_PORTRAIT); 729 final float y = WALLPAPER_WIDTH_TO_SCREEN_RATIO_PORTRAIT - x * ASPECT_RATIO_PORTRAIT; 730 return x * aspectRatio + y; 731 } 732 733 // The range of scroll values for Workspace 734 private int getScrollRange() { 735 return getChildOffset(getChildCount() - 1) - getChildOffset(0); 736 } 737 738 protected void setWallpaperDimension() { 739 Display display = mLauncher.getWindowManager().getDefaultDisplay(); 740 DisplayMetrics displayMetrics = new DisplayMetrics(); 741 display.getRealMetrics(displayMetrics); 742 final int maxDim = Math.max(displayMetrics.widthPixels, displayMetrics.heightPixels); 743 final int minDim = Math.min(displayMetrics.widthPixels, displayMetrics.heightPixels); 744 745 // We need to ensure that there is enough extra space in the wallpaper for the intended 746 // parallax effects 747 mWallpaperWidth = (int) (maxDim * wallpaperTravelToScreenWidthRatio(maxDim, minDim)); 748 mWallpaperHeight = (int)(maxDim * wallpaperTravelToScreenHeightRatio(maxDim, minDim)); 749 new Thread("setWallpaperDimension") { 750 public void run() { 751 mWallpaperManager.suggestDesiredDimensions(mWallpaperWidth, mWallpaperHeight); 752 } 753 }.start(); 754 } 755 756 public void setVerticalWallpaperOffset(float offset) { 757 mWallpaperOffset.setFinalY(offset); 758 } 759 public float getVerticalWallpaperOffset() { 760 return mWallpaperOffset.getCurrY(); 761 } 762 public void setHorizontalWallpaperOffset(float offset) { 763 mWallpaperOffset.setFinalX(offset); 764 } 765 public float getHorizontalWallpaperOffset() { 766 return mWallpaperOffset.getCurrX(); 767 } 768 769 private float wallpaperOffsetForCurrentScroll() { 770 Display display = mLauncher.getWindowManager().getDefaultDisplay(); 771 final boolean isStaticWallpaper = (mWallpaperManager.getWallpaperInfo() == null); 772 // The wallpaper travel width is how far, from left to right, the wallpaper will move 773 // at this orientation (for example, in portrait mode we don't move all the way to the 774 // edges of the wallpaper, or otherwise the parallax effect would be too strong) 775 int wallpaperTravelWidth = (int) (display.getWidth() * 776 wallpaperTravelToScreenWidthRatio(display.getWidth(), display.getHeight())); 777 if (!isStaticWallpaper) { 778 wallpaperTravelWidth = mWallpaperWidth; 779 } 780 781 // Set wallpaper offset steps (1 / (number of screens - 1)) 782 // We have 3 vertical offset states (centered, and then top/bottom aligned 783 // for all apps/customize) 784 mWallpaperManager.setWallpaperOffsetSteps(1.0f / (getChildCount() - 1), 1.0f / (3 - 1)); 785 786 int scrollRange = getScrollRange(); 787 float scrollProgressOffset = 0; 788 789 // Account for overscroll: you only see the absolute edge of the wallpaper if 790 // you overscroll as far as you can in landscape mode. Only do this for static wallpapers 791 // because live wallpapers (and probably 3rd party wallpaper providers) rely on the offset 792 // being even intervals from 0 to 1 (eg [0, 0.25, 0.5, 0.75, 1]) 793 if (isStaticWallpaper) { 794 int overscrollOffset = (int) (maxOverScroll() * display.getWidth()); 795 scrollProgressOffset += overscrollOffset / (float) getScrollRange(); 796 scrollRange += 2 * overscrollOffset; 797 } 798 799 float scrollProgress = 800 mScrollX / (float) scrollRange + scrollProgressOffset; 801 float offsetInDips = wallpaperTravelWidth * scrollProgress + 802 (mWallpaperWidth - wallpaperTravelWidth) / 2; // center it 803 float offset = offsetInDips / (float) mWallpaperWidth; 804 return offset; 805 } 806 private void syncWallpaperOffsetWithScroll() { 807 final boolean enableWallpaperEffects = isHardwareAccelerated(); 808 if (enableWallpaperEffects) { 809 mWallpaperOffset.setFinalX(wallpaperOffsetForCurrentScroll()); 810 } 811 } 812 813 public void updateWallpaperOffsetImmediately() { 814 mUpdateWallpaperOffsetImmediately = true; 815 } 816 817 private void updateWallpaperOffsets() { 818 boolean updateNow = false; 819 boolean keepUpdating = true; 820 if (mUpdateWallpaperOffsetImmediately) { 821 updateNow = true; 822 keepUpdating = false; 823 mWallpaperOffset.jumpToFinal(); 824 mUpdateWallpaperOffsetImmediately = false; 825 } else { 826 updateNow = keepUpdating = mWallpaperOffset.computeScrollOffset(); 827 } 828 if (updateNow) { 829 if (mWindowToken != null) { 830 mWallpaperManager.setWallpaperOffsets(mWindowToken, 831 mWallpaperOffset.getCurrX(), mWallpaperOffset.getCurrY()); 832 } 833 } 834 if (keepUpdating) { 835 fastInvalidate(); 836 } 837 } 838 839 class WallpaperOffsetInterpolator { 840 float mFinalHorizontalWallpaperOffset = 0.0f; 841 float mFinalVerticalWallpaperOffset = 0.5f; 842 float mHorizontalWallpaperOffset = 0.0f; 843 float mVerticalWallpaperOffset = 0.5f; 844 long mLastWallpaperOffsetUpdateTime; 845 boolean mIsMovingFast; 846 boolean mOverrideHorizontalCatchupConstant; 847 float mHorizontalCatchupConstant = 0.35f; 848 float mVerticalCatchupConstant = 0.35f; 849 850 public WallpaperOffsetInterpolator() { 851 } 852 853 public void setOverrideHorizontalCatchupConstant(boolean override) { 854 mOverrideHorizontalCatchupConstant = override; 855 } 856 857 public void setHorizontalCatchupConstant(float f) { 858 mHorizontalCatchupConstant = f; 859 } 860 861 public void setVerticalCatchupConstant(float f) { 862 mVerticalCatchupConstant = f; 863 } 864 865 public boolean computeScrollOffset() { 866 if (Float.compare(mHorizontalWallpaperOffset, mFinalHorizontalWallpaperOffset) == 0 && 867 Float.compare(mVerticalWallpaperOffset, mFinalVerticalWallpaperOffset) == 0) { 868 mIsMovingFast = false; 869 return false; 870 } 871 Display display = mLauncher.getWindowManager().getDefaultDisplay(); 872 boolean isLandscape = display.getWidth() > display.getHeight(); 873 874 long currentTime = System.currentTimeMillis(); 875 long timeSinceLastUpdate = currentTime - mLastWallpaperOffsetUpdateTime; 876 timeSinceLastUpdate = Math.min((long) (1000/30f), timeSinceLastUpdate); 877 timeSinceLastUpdate = Math.max(1L, timeSinceLastUpdate); 878 879 float xdiff = Math.abs(mFinalHorizontalWallpaperOffset - mHorizontalWallpaperOffset); 880 if (!mIsMovingFast && xdiff > 0.07) { 881 mIsMovingFast = true; 882 } 883 884 float fractionToCatchUpIn1MsHorizontal; 885 if (mOverrideHorizontalCatchupConstant) { 886 fractionToCatchUpIn1MsHorizontal = mHorizontalCatchupConstant; 887 } else if (mIsMovingFast) { 888 fractionToCatchUpIn1MsHorizontal = isLandscape ? 0.5f : 0.75f; 889 } else { 890 // slow 891 fractionToCatchUpIn1MsHorizontal = isLandscape ? 0.27f : 0.5f; 892 } 893 float fractionToCatchUpIn1MsVertical = mVerticalCatchupConstant; 894 895 fractionToCatchUpIn1MsHorizontal /= 33f; 896 fractionToCatchUpIn1MsVertical /= 33f; 897 898 final float UPDATE_THRESHOLD = 0.00001f; 899 float hOffsetDelta = mFinalHorizontalWallpaperOffset - mHorizontalWallpaperOffset; 900 float vOffsetDelta = mFinalVerticalWallpaperOffset - mVerticalWallpaperOffset; 901 boolean jumpToFinalValue = Math.abs(hOffsetDelta) < UPDATE_THRESHOLD && 902 Math.abs(vOffsetDelta) < UPDATE_THRESHOLD; 903 if (jumpToFinalValue) { 904 mHorizontalWallpaperOffset = mFinalHorizontalWallpaperOffset; 905 mVerticalWallpaperOffset = mFinalVerticalWallpaperOffset; 906 } else { 907 float percentToCatchUpVertical = 908 Math.min(1.0f, timeSinceLastUpdate * fractionToCatchUpIn1MsVertical); 909 float percentToCatchUpHorizontal = 910 Math.min(1.0f, timeSinceLastUpdate * fractionToCatchUpIn1MsHorizontal); 911 mHorizontalWallpaperOffset += percentToCatchUpHorizontal * hOffsetDelta; 912 mVerticalWallpaperOffset += percentToCatchUpVertical * vOffsetDelta; 913 } 914 915 mLastWallpaperOffsetUpdateTime = System.currentTimeMillis(); 916 return true; 917 } 918 919 public float getCurrX() { 920 return mHorizontalWallpaperOffset; 921 } 922 923 public float getFinalX() { 924 return mFinalHorizontalWallpaperOffset; 925 } 926 927 public float getCurrY() { 928 return mVerticalWallpaperOffset; 929 } 930 931 public float getFinalY() { 932 return mFinalVerticalWallpaperOffset; 933 } 934 935 public void setFinalX(float x) { 936 mFinalHorizontalWallpaperOffset = Math.max(0f, Math.min(x, 1.0f)); 937 } 938 939 public void setFinalY(float y) { 940 mFinalVerticalWallpaperOffset = Math.max(0f, Math.min(y, 1.0f)); 941 } 942 943 public void jumpToFinal() { 944 mHorizontalWallpaperOffset = mFinalHorizontalWallpaperOffset; 945 mVerticalWallpaperOffset = mFinalVerticalWallpaperOffset; 946 } 947 } 948 949 @Override 950 public void computeScroll() { 951 super.computeScroll(); 952 if (mSyncWallpaperOffsetWithScroll) { 953 syncWallpaperOffsetWithScroll(); 954 } 955 } 956 957 void showOutlines() { 958 if (!isSmall() && !mIsSwitchingState) { 959 if (mChildrenOutlineFadeOutAnimation != null) mChildrenOutlineFadeOutAnimation.cancel(); 960 if (mChildrenOutlineFadeInAnimation != null) mChildrenOutlineFadeInAnimation.cancel(); 961 mChildrenOutlineFadeInAnimation = ObjectAnimator.ofFloat(this, "childrenOutlineAlpha", 1.0f); 962 mChildrenOutlineFadeInAnimation.setDuration(CHILDREN_OUTLINE_FADE_IN_DURATION); 963 mChildrenOutlineFadeInAnimation.start(); 964 } 965 } 966 967 void hideOutlines() { 968 if (!isSmall() && !mIsSwitchingState) { 969 if (mChildrenOutlineFadeInAnimation != null) mChildrenOutlineFadeInAnimation.cancel(); 970 if (mChildrenOutlineFadeOutAnimation != null) mChildrenOutlineFadeOutAnimation.cancel(); 971 mChildrenOutlineFadeOutAnimation = ObjectAnimator.ofFloat(this, "childrenOutlineAlpha", 0.0f); 972 mChildrenOutlineFadeOutAnimation.setDuration(CHILDREN_OUTLINE_FADE_OUT_DURATION); 973 mChildrenOutlineFadeOutAnimation.setStartDelay(CHILDREN_OUTLINE_FADE_OUT_DELAY); 974 mChildrenOutlineFadeOutAnimation.start(); 975 } 976 } 977 978 public void showOutlinesTemporarily() { 979 if (!mIsPageMoving && !isTouchActive()) { 980 snapToPage(mCurrentPage); 981 } 982 } 983 984 public void setChildrenOutlineAlpha(float alpha) { 985 mChildrenOutlineAlpha = alpha; 986 for (int i = 0; i < getChildCount(); i++) { 987 CellLayout cl = (CellLayout) getChildAt(i); 988 cl.setBackgroundAlpha(alpha); 989 } 990 } 991 992 public float getChildrenOutlineAlpha() { 993 return mChildrenOutlineAlpha; 994 } 995 996 void disableBackground() { 997 mDrawBackground = false; 998 } 999 void enableBackground() { 1000 mDrawBackground = true; 1001 } 1002 1003 private void animateBackgroundGradient(float finalAlpha, boolean animated) { 1004 if (mBackground == null) return; 1005 if (mBackgroundFadeInAnimation != null) { 1006 mBackgroundFadeInAnimation.cancel(); 1007 mBackgroundFadeInAnimation = null; 1008 } 1009 if (mBackgroundFadeOutAnimation != null) { 1010 mBackgroundFadeOutAnimation.cancel(); 1011 mBackgroundFadeOutAnimation = null; 1012 } 1013 float startAlpha = getBackgroundAlpha(); 1014 if (finalAlpha != startAlpha) { 1015 if (animated) { 1016 mBackgroundFadeOutAnimation = ValueAnimator.ofFloat(startAlpha, finalAlpha); 1017 mBackgroundFadeOutAnimation.addUpdateListener(new AnimatorUpdateListener() { 1018 public void onAnimationUpdate(ValueAnimator animation) { 1019 setBackgroundAlpha(((Float) animation.getAnimatedValue()).floatValue()); 1020 } 1021 }); 1022 mBackgroundFadeOutAnimation.setInterpolator(new DecelerateInterpolator(1.5f)); 1023 mBackgroundFadeOutAnimation.setDuration(BACKGROUND_FADE_OUT_DURATION); 1024 mBackgroundFadeOutAnimation.start(); 1025 } else { 1026 setBackgroundAlpha(finalAlpha); 1027 } 1028 } 1029 } 1030 1031 public void setBackgroundAlpha(float alpha) { 1032 if (alpha != mBackgroundAlpha) { 1033 mBackgroundAlpha = alpha; 1034 invalidate(); 1035 } 1036 } 1037 1038 public float getBackgroundAlpha() { 1039 return mBackgroundAlpha; 1040 } 1041 1042 /** 1043 * Due to 3D transformations, if two CellLayouts are theoretically touching each other, 1044 * on the xy plane, when one is rotated along the y-axis, the gap between them is perceived 1045 * as being larger. This method computes what offset the rotated view should be translated 1046 * in order to minimize this perceived gap. 1047 * @param degrees Angle of the view 1048 * @param width Width of the view 1049 * @param height Height of the view 1050 * @return Offset to be used in a View.setTranslationX() call 1051 */ 1052 private float getOffsetXForRotation(float degrees, int width, int height) { 1053 mMatrix.reset(); 1054 mCamera.save(); 1055 mCamera.rotateY(Math.abs(degrees)); 1056 mCamera.getMatrix(mMatrix); 1057 mCamera.restore(); 1058 1059 mMatrix.preTranslate(-width * 0.5f, -height * 0.5f); 1060 mMatrix.postTranslate(width * 0.5f, height * 0.5f); 1061 mTempFloat2[0] = width; 1062 mTempFloat2[1] = height; 1063 mMatrix.mapPoints(mTempFloat2); 1064 return (width - mTempFloat2[0]) * (degrees > 0.0f ? 1.0f : -1.0f); 1065 } 1066 1067 float backgroundAlphaInterpolator(float r) { 1068 float pivotA = 0.1f; 1069 float pivotB = 0.4f; 1070 if (r < pivotA) { 1071 return 0; 1072 } else if (r > pivotB) { 1073 return 1.0f; 1074 } else { 1075 return (r - pivotA)/(pivotB - pivotA); 1076 } 1077 } 1078 1079 float overScrollBackgroundAlphaInterpolator(float r) { 1080 float threshold = 0.08f; 1081 1082 if (r > mOverScrollMaxBackgroundAlpha) { 1083 mOverScrollMaxBackgroundAlpha = r; 1084 } else if (r < mOverScrollMaxBackgroundAlpha) { 1085 r = mOverScrollMaxBackgroundAlpha; 1086 } 1087 1088 return Math.min(r / threshold, 1.0f); 1089 } 1090 1091 @Override 1092 protected void screenScrolled(int screenCenter) { 1093 super.screenScrolled(screenCenter); 1094 1095 // If the screen is not xlarge, then don't rotate the CellLayouts 1096 // NOTE: If we don't update the side pages alpha, then we should not hide the side pages. 1097 // see unshrink(). 1098 if (!LauncherApplication.isScreenLarge()) return; 1099 1100 final int halfScreenSize = getMeasuredWidth() / 2; 1101 1102 for (int i = 0; i < getChildCount(); i++) { 1103 CellLayout cl = (CellLayout) getChildAt(i); 1104 if (cl != null) { 1105 int totalDistance = getScaledMeasuredWidth(cl) + mPageSpacing; 1106 int delta = screenCenter - (getChildOffset(i) - 1107 getRelativeChildOffset(i) + halfScreenSize); 1108 1109 float scrollProgress = delta / (totalDistance * 1.0f); 1110 scrollProgress = Math.min(scrollProgress, 1.0f); 1111 scrollProgress = Math.max(scrollProgress, -1.0f); 1112 1113 if (mState != State.SPRING_LOADED) { 1114 // If the current page (i) is being overscrolled, we use a different 1115 // set of rules for setting the background alpha multiplier. 1116 if ((mScrollX < 0 && i == 0) || (mScrollX > mMaxScrollX && 1117 i == getChildCount() -1 )) { 1118 cl.setBackgroundAlphaMultiplier( 1119 overScrollBackgroundAlphaInterpolator(Math.abs(scrollProgress))); 1120 mOverScrollPageIndex = i; 1121 } else if (mOverScrollPageIndex != i) { 1122 cl.setBackgroundAlphaMultiplier( 1123 backgroundAlphaInterpolator(Math.abs(scrollProgress))); 1124 } 1125 } 1126 1127 float rotation = WORKSPACE_ROTATION * scrollProgress; 1128 float translationX = getOffsetXForRotation(rotation, cl.getWidth(), cl.getHeight()); 1129 cl.setTranslationX(translationX); 1130 1131 cl.setRotationY(rotation); 1132 } 1133 } 1134 } 1135 1136 protected void onAttachedToWindow() { 1137 super.onAttachedToWindow(); 1138 mWindowToken = getWindowToken(); 1139 computeScroll(); 1140 mDragController.setWindowToken(mWindowToken); 1141 } 1142 1143 protected void onDetachedFromWindow() { 1144 mWindowToken = null; 1145 } 1146 1147 @Override 1148 protected void onLayout(boolean changed, int left, int top, int right, int bottom) { 1149 if (mFirstLayout && mCurrentPage >= 0 && mCurrentPage < getChildCount()) { 1150 mUpdateWallpaperOffsetImmediately = true; 1151 } 1152 super.onLayout(changed, left, top, right, bottom); 1153 1154 // if shrinkToBottom() is called on initialization, it has to be deferred 1155 // until after the first call to onLayout so that it has the correct width 1156 if (mSwitchStateAfterFirstLayout) { 1157 mSwitchStateAfterFirstLayout = false; 1158 // shrink can trigger a synchronous onLayout call, so we 1159 // post this to avoid a stack overflow / tangled onLayout calls 1160 post(new Runnable() { 1161 public void run() { 1162 shrink(mStateAfterFirstLayout, false); 1163 } 1164 }); 1165 } 1166 } 1167 1168 @Override 1169 protected void onDraw(Canvas canvas) { 1170 updateWallpaperOffsets(); 1171 1172 // Draw the background gradient if necessary 1173 if (mBackground != null && mBackgroundAlpha > 0.0f && mDrawBackground) { 1174 int alpha = (int) (mBackgroundAlpha * 255); 1175 mBackground.setAlpha(alpha); 1176 mBackground.setBounds(mScrollX, 0, mScrollX + getMeasuredWidth(), 1177 getMeasuredHeight()); 1178 mBackground.draw(canvas); 1179 } 1180 1181 super.onDraw(canvas); 1182 } 1183 1184 @Override 1185 protected void dispatchDraw(Canvas canvas) { 1186 super.dispatchDraw(canvas); 1187 1188 if (mInScrollArea && !LauncherApplication.isScreenLarge()) { 1189 final int width = getWidth(); 1190 final int height = getHeight(); 1191 final int pageHeight = getChildAt(0).getHeight(); 1192 1193 // This determines the height of the glowing edge: 90% of the page height 1194 final int padding = (int) ((height - pageHeight) * 0.5f + pageHeight * 0.1f); 1195 1196 final CellLayout leftPage = (CellLayout) getChildAt(mCurrentPage - 1); 1197 final CellLayout rightPage = (CellLayout) getChildAt(mCurrentPage + 1); 1198 1199 if (leftPage != null && leftPage.getIsDragOverlapping()) { 1200 final Drawable d = getResources().getDrawable(R.drawable.page_hover_left_holo); 1201 d.setBounds(mScrollX, padding, mScrollX + d.getIntrinsicWidth(), height - padding); 1202 d.draw(canvas); 1203 } else if (rightPage != null && rightPage.getIsDragOverlapping()) { 1204 final Drawable d = getResources().getDrawable(R.drawable.page_hover_right_holo); 1205 d.setBounds(mScrollX + width - d.getIntrinsicWidth(), padding, mScrollX + width, height - padding); 1206 d.draw(canvas); 1207 } 1208 } 1209 } 1210 1211 @Override 1212 protected boolean onRequestFocusInDescendants(int direction, Rect previouslyFocusedRect) { 1213 if (!mLauncher.isAllAppsVisible()) { 1214 final Folder openFolder = getOpenFolder(); 1215 if (openFolder != null) { 1216 return openFolder.requestFocus(direction, previouslyFocusedRect); 1217 } else { 1218 return super.onRequestFocusInDescendants(direction, previouslyFocusedRect); 1219 } 1220 } 1221 return false; 1222 } 1223 1224 @Override 1225 public int getDescendantFocusability() { 1226 if (isSmall()) { 1227 return ViewGroup.FOCUS_BLOCK_DESCENDANTS; 1228 } 1229 return super.getDescendantFocusability(); 1230 } 1231 1232 @Override 1233 public void addFocusables(ArrayList<View> views, int direction, int focusableMode) { 1234 if (!mLauncher.isAllAppsVisible()) { 1235 final Folder openFolder = getOpenFolder(); 1236 if (openFolder != null) { 1237 openFolder.addFocusables(views, direction); 1238 } else { 1239 super.addFocusables(views, direction, focusableMode); 1240 } 1241 } 1242 } 1243 1244 public boolean isSmall() { 1245 return mState == State.SMALL || mState == State.SPRING_LOADED; 1246 } 1247 1248 void enableChildrenCache(int fromPage, int toPage) { 1249 if (fromPage > toPage) { 1250 final int temp = fromPage; 1251 fromPage = toPage; 1252 toPage = temp; 1253 } 1254 1255 final int screenCount = getChildCount(); 1256 1257 fromPage = Math.max(fromPage, 0); 1258 toPage = Math.min(toPage, screenCount - 1); 1259 1260 for (int i = fromPage; i <= toPage; i++) { 1261 final CellLayout layout = (CellLayout) getChildAt(i); 1262 layout.setChildrenDrawnWithCacheEnabled(true); 1263 layout.setChildrenDrawingCacheEnabled(true); 1264 } 1265 } 1266 1267 void clearChildrenCache() { 1268 final int screenCount = getChildCount(); 1269 for (int i = 0; i < screenCount; i++) { 1270 final CellLayout layout = (CellLayout) getChildAt(i); 1271 layout.setChildrenDrawnWithCacheEnabled(false); 1272 // In software mode, we don't want the items to continue to be drawn into bitmaps 1273 if (!isHardwareAccelerated()) { 1274 layout.setChildrenDrawingCacheEnabled(false); 1275 } 1276 } 1277 } 1278 1279 private void updateChildrenLayersEnabled() { 1280 boolean small = 1281 isSmall() || mIsSwitchingState || mState == State.SPRING_LOADED; 1282 boolean dragging = mAnimatingViewIntoPlace || mIsDragOccuring; 1283 boolean enableChildrenLayers = small || dragging || isPageMoving(); 1284 1285 if (enableChildrenLayers != mChildrenLayersEnabled) { 1286 mChildrenLayersEnabled = enableChildrenLayers; 1287 for (int i = 0; i < getPageCount(); i++) { 1288 ((ViewGroup)getChildAt(i)).setChildrenLayersEnabled(enableChildrenLayers); 1289 } 1290 } 1291 } 1292 1293 @Override 1294 protected void onWallpaperTap(MotionEvent ev) { 1295 final int[] position = mTempCell; 1296 getLocationOnScreen(position); 1297 1298 int pointerIndex = ev.getActionIndex(); 1299 position[0] += (int) ev.getX(pointerIndex); 1300 position[1] += (int) ev.getY(pointerIndex); 1301 1302 mWallpaperManager.sendWallpaperCommand(getWindowToken(), 1303 ev.getAction() == MotionEvent.ACTION_UP 1304 ? WallpaperManager.COMMAND_TAP : WallpaperManager.COMMAND_SECONDARY_TAP, 1305 position[0], position[1], 0, null); 1306 } 1307 1308 private float getYScaleForScreen(int screen) { 1309 int x = Math.abs(screen - 2); 1310 1311 // TODO: This should be generalized for use with arbitrary rotation angles. 1312 switch(x) { 1313 case 0: return EXTRA_SCALE_FACTOR_0; 1314 case 1: return EXTRA_SCALE_FACTOR_1; 1315 case 2: return EXTRA_SCALE_FACTOR_2; 1316 } 1317 return 1.0f; 1318 } 1319 1320 public void shrink(State shrinkState) { 1321 shrink(shrinkState, true); 1322 } 1323 1324 // we use this to shrink the workspace for the all apps view and the customize view 1325 public void shrink(final State shrinkState, boolean animated) { 1326 if (mFirstLayout) { 1327 // (mFirstLayout == "first layout has not happened yet") 1328 // if we get a call to shrink() as part of our initialization (for example, if 1329 // Launcher is started in All Apps mode) then we need to wait for a layout call 1330 // to get our width so we can layout the mini-screen views correctly 1331 mSwitchStateAfterFirstLayout = true; 1332 mStateAfterFirstLayout = shrinkState; 1333 return; 1334 } 1335 1336 // Stop any scrolling, move to the current page right away 1337 setCurrentPage((mNextPage != INVALID_PAGE) ? mNextPage : mCurrentPage); 1338 1339 CellLayout currentPage = (CellLayout) getChildAt(mCurrentPage); 1340 if (currentPage == null) { 1341 Log.w(TAG, "currentPage is NULL! mCurrentPage " + mCurrentPage 1342 + " mNextPage " + mNextPage); 1343 return; 1344 } 1345 if (currentPage.getBackgroundAlphaMultiplier() < 1.0f) { 1346 currentPage.setBackgroundAlpha(0.0f); 1347 } 1348 currentPage.setBackgroundAlphaMultiplier(1.0f); 1349 1350 mState = shrinkState; 1351 updateChildrenLayersEnabled(); 1352 1353 // we intercept and reject all touch events when we're small, so be sure to reset the state 1354 mTouchState = TOUCH_STATE_REST; 1355 mActivePointerId = INVALID_POINTER; 1356 1357 final Resources res = getResources(); 1358 final int screenWidth = getWidth(); 1359 final int screenHeight = getHeight(); 1360 1361 // How much the workspace shrinks when we enter all apps or customization mode 1362 final float shrinkFactor = res.getInteger(R.integer.config_workspaceShrinkPercent) / 100.0f; 1363 1364 // Making the assumption that all pages have the same width as the 0th 1365 final int pageWidth = getChildAt(0).getMeasuredWidth(); 1366 final int pageHeight = getChildAt(0).getMeasuredHeight(); 1367 1368 final int scaledPageWidth = (int) (shrinkFactor * pageWidth); 1369 final int scaledPageHeight = (int) (shrinkFactor * pageHeight); 1370 final float extraScaledSpacing = res.getDimension(R.dimen.smallScreenExtraSpacing); 1371 1372 final int screenCount = getChildCount(); 1373 float totalWidth = screenCount * scaledPageWidth + (screenCount - 1) * extraScaledSpacing; 1374 1375 // We shrink and disappear to nothing 1376 boolean isPortrait = getMeasuredHeight() > getMeasuredWidth(); 1377 float y = screenHeight - scaledPageHeight - (isPortrait ? 1378 getResources().getDimension(R.dimen.allAppsSmallScreenVerticalMarginPortrait) : 1379 getResources().getDimension(R.dimen.allAppsSmallScreenVerticalMarginLandscape)); 1380 float finalAlpha = 0.0f; 1381 1382 int duration = res.getInteger(R.integer.config_appsCustomizeWorkspaceShrinkTime); 1383 1384 // We animate all the screens to the centered position in workspace 1385 // At the same time, the screens become greyed/dimmed 1386 1387 // newX is initialized to the left-most position of the centered screens 1388 float x = mScroller.getFinalX() + screenWidth / 2 - totalWidth / 2; 1389 1390 // We are going to scale about the center of the view, so we need to adjust the positions 1391 // of the views accordingly 1392 x -= (pageWidth - scaledPageWidth) / 2.0f; 1393 y -= (pageHeight - scaledPageHeight) / 2.0f; 1394 1395 if (mAnimator != null) { 1396 mAnimator.cancel(); 1397 } 1398 1399 mAnimator = new AnimatorSet(); 1400 // Workaround the AnimatorSet cancel bug... 1401 mUnshrinkAnimationEnabled = false; 1402 mShrinkAnimationEnabled = true; 1403 1404 initAnimationArrays(); 1405 1406 for (int i = 0; i < screenCount; i++) { 1407 final CellLayout cl = (CellLayout) getChildAt(i); 1408 1409 float rotation = (-i + 2) * WORKSPACE_ROTATION; 1410 float rotationScaleX = (float) (1.0f / Math.cos(Math.PI * rotation / 180.0f)); 1411 float rotationScaleY = getYScaleForScreen(i); 1412 1413 mOldAlphas[i] = cl.getAlpha(); 1414 mNewAlphas[i] = finalAlpha; 1415 if (animated && (mOldAlphas[i] != 0f || mNewAlphas[i] != 0f)) { 1416 // if the CellLayout will be visible during the animation, force building its 1417 // hardware layer immediately so we don't see a blip later in the animation 1418 cl.buildChildrenLayer(); 1419 } 1420 if (animated) { 1421 mOldTranslationXs[i] = cl.getX(); 1422 mOldTranslationYs[i] = cl.getY(); 1423 mOldScaleXs[i] = cl.getScaleX(); 1424 mOldScaleYs[i] = cl.getScaleY(); 1425 mOldBackgroundAlphas[i] = cl.getBackgroundAlpha(); 1426 mOldRotationYs[i] = cl.getRotationY(); 1427 mNewTranslationXs[i] = x; 1428 mNewTranslationYs[i] = y; 1429 mNewScaleXs[i] = shrinkFactor * rotationScaleX; 1430 mNewScaleYs[i] = shrinkFactor * rotationScaleY; 1431 mNewBackgroundAlphas[i] = finalAlpha; 1432 mNewRotationYs[i] = rotation; 1433 } else { 1434 cl.setX((int)x); 1435 cl.setY((int)y); 1436 cl.setScaleX(shrinkFactor * rotationScaleX); 1437 cl.setScaleY(shrinkFactor * rotationScaleY); 1438 cl.setBackgroundAlpha(finalAlpha); 1439 cl.setFastAlpha(finalAlpha); 1440 cl.setRotationY(rotation); 1441 mShrinkAnimationListener.onAnimationEnd(null); 1442 } 1443 // increment newX for the next screen 1444 x += scaledPageWidth + extraScaledSpacing; 1445 } 1446 1447 float wallpaperOffset = 0.5f; 1448 Display display = mLauncher.getWindowManager().getDefaultDisplay(); 1449 int wallpaperTravelHeight = (int) (display.getHeight() * 1450 wallpaperTravelToScreenHeightRatio(display.getWidth(), display.getHeight())); 1451 float offsetFromCenter = (wallpaperTravelHeight / (float) mWallpaperHeight) / 2f; 1452 boolean isLandscape = display.getWidth() > display.getHeight(); 1453 1454 // on phones, don't scroll the wallpaper horizontally or vertically when switching 1455 // to/from all apps 1456 final boolean enableWallpaperEffects = 1457 isHardwareAccelerated() && LauncherApplication.isScreenLarge(); 1458 if (enableWallpaperEffects) { 1459 switch (shrinkState) { 1460 // animating in 1461 case SPRING_LOADED: 1462 wallpaperOffset = 0.5f; 1463 mWallpaperOffset.setVerticalCatchupConstant(isLandscape ? 0.34f : 0.32f); 1464 break; 1465 case SMALL: 1466 // allapps 1467 wallpaperOffset = 0.5f - offsetFromCenter; 1468 mWallpaperOffset.setVerticalCatchupConstant(isLandscape ? 0.34f : 0.32f); 1469 break; 1470 } 1471 } 1472 1473 setLayoutScale(1.0f); 1474 if (animated) { 1475 if (enableWallpaperEffects) { 1476 mWallpaperOffset.setHorizontalCatchupConstant(0.46f); 1477 mWallpaperOffset.setOverrideHorizontalCatchupConstant(true); 1478 } 1479 1480 mSyncWallpaperOffsetWithScroll = false; 1481 1482 ValueAnimator animWithInterpolator = 1483 ValueAnimator.ofFloat(0f, 1f).setDuration(duration); 1484 animWithInterpolator.setInterpolator(mZoomOutInterpolator); 1485 1486 final float oldHorizontalWallpaperOffset = getHorizontalWallpaperOffset(); 1487 final float oldVerticalWallpaperOffset = getVerticalWallpaperOffset(); 1488 final float newHorizontalWallpaperOffset = 0.5f; 1489 final float newVerticalWallpaperOffset = wallpaperOffset; 1490 animWithInterpolator.addUpdateListener(new LauncherAnimatorUpdateListener() { 1491 public void onAnimationUpdate(float a, float b) { 1492 if (!mShrinkAnimationEnabled) return; 1493 mTransitionProgress = b; 1494 if (b == 0f) { 1495 // an optimization, and required for correct behavior. 1496 return; 1497 } 1498 invalidate(); 1499 if (enableWallpaperEffects) { 1500 setHorizontalWallpaperOffset( 1501 a * oldHorizontalWallpaperOffset + b * newHorizontalWallpaperOffset); 1502 setVerticalWallpaperOffset( 1503 a * oldVerticalWallpaperOffset + b * newVerticalWallpaperOffset); 1504 } 1505 for (int i = 0; i < screenCount; i++) { 1506 final CellLayout cl = (CellLayout) getChildAt(i); 1507 cl.fastInvalidate(); 1508 cl.setFastX(a * mOldTranslationXs[i] + b * mNewTranslationXs[i]); 1509 cl.setFastY(a * mOldTranslationYs[i] + b * mNewTranslationYs[i]); 1510 cl.setFastScaleX(a * mOldScaleXs[i] + b * mNewScaleXs[i]); 1511 cl.setFastScaleY(a * mOldScaleYs[i] + b * mNewScaleYs[i]); 1512 cl.setFastBackgroundAlpha( 1513 a * mOldBackgroundAlphas[i] + b * mNewBackgroundAlphas[i]); 1514 cl.setFastAlpha(a * mOldAlphas[i] + b * mNewAlphas[i]); 1515 cl.setFastRotationY(a * mOldRotationYs[i] + b * mNewRotationYs[i]); 1516 } 1517 } 1518 }); 1519 mAnimator.playTogether(animWithInterpolator); 1520 mAnimator.addListener(mShrinkAnimationListener); 1521 mAnimator.start(); 1522 } else if (enableWallpaperEffects) { 1523 setVerticalWallpaperOffset(wallpaperOffset); 1524 setHorizontalWallpaperOffset(0.5f); 1525 updateWallpaperOffsetImmediately(); 1526 } 1527 setChildrenDrawnWithCacheEnabled(true); 1528 } 1529 1530 @Override 1531 protected void updateAdjacentPagesAlpha() { 1532 if (!isSmall()) { 1533 super.updateAdjacentPagesAlpha(); 1534 } 1535 } 1536 1537 /* 1538 * This interpolator emulates the rate at which the perceived scale of an object changes 1539 * as its distance from a camera increases. When this interpolator is applied to a scale 1540 * animation on a view, it evokes the sense that the object is shrinking due to moving away 1541 * from the camera. 1542 */ 1543 static class ZInterpolator implements TimeInterpolator { 1544 private float focalLength; 1545 1546 public ZInterpolator(float foc) { 1547 focalLength = foc; 1548 } 1549 1550 public float getInterpolation(float input) { 1551 return (1.0f - focalLength / (focalLength + input)) / 1552 (1.0f - focalLength / (focalLength + 1.0f)); 1553 } 1554 } 1555 1556 /* 1557 * The exact reverse of ZInterpolator. 1558 */ 1559 static class InverseZInterpolator implements TimeInterpolator { 1560 private ZInterpolator zInterpolator; 1561 public InverseZInterpolator(float foc) { 1562 zInterpolator = new ZInterpolator(foc); 1563 } 1564 public float getInterpolation(float input) { 1565 return 1 - zInterpolator.getInterpolation(1 - input); 1566 } 1567 } 1568 1569 /* 1570 * ZInterpolator compounded with an ease-out. 1571 */ 1572 static class ZoomOutInterpolator implements TimeInterpolator { 1573 private final ZInterpolator zInterpolator = new ZInterpolator(0.2f); 1574 private final DecelerateInterpolator decelerate = new DecelerateInterpolator(1.8f); 1575 1576 public float getInterpolation(float input) { 1577 return decelerate.getInterpolation(zInterpolator.getInterpolation(input)); 1578 } 1579 } 1580 1581 /* 1582 * InvereZInterpolator compounded with an ease-out. 1583 */ 1584 static class ZoomInInterpolator implements TimeInterpolator { 1585 private final InverseZInterpolator inverseZInterpolator = new InverseZInterpolator(0.35f); 1586 private final DecelerateInterpolator decelerate = new DecelerateInterpolator(3.0f); 1587 1588 public float getInterpolation(float input) { 1589 return decelerate.getInterpolation(inverseZInterpolator.getInterpolation(input)); 1590 } 1591 } 1592 1593 private final ZoomOutInterpolator mZoomOutInterpolator = new ZoomOutInterpolator(); 1594 private final ZoomInInterpolator mZoomInInterpolator = new ZoomInInterpolator(); 1595 1596 /* 1597 * 1598 * We call these methods (onDragStartedWithItemSpans/onDragStartedWithSize) whenever we 1599 * start a drag in Launcher, regardless of whether the drag has ever entered the Workspace 1600 * 1601 * These methods mark the appropriate pages as accepting drops (which alters their visual 1602 * appearance). 1603 * 1604 */ 1605 public void onDragStartedWithItem(View v) { 1606 final Canvas canvas = new Canvas(); 1607 1608 // We need to add extra padding to the bitmap to make room for the glow effect 1609 final int bitmapPadding = HolographicOutlineHelper.MAX_OUTER_BLUR_RADIUS; 1610 1611 // The outline is used to visualize where the item will land if dropped 1612 mDragOutline = createDragOutline(v, canvas, bitmapPadding); 1613 } 1614 1615 public void onDragStartedWithItemSpans(int spanX, int spanY, Bitmap b) { 1616 final Canvas canvas = new Canvas(); 1617 1618 // We need to add extra padding to the bitmap to make room for the glow effect 1619 final int bitmapPadding = HolographicOutlineHelper.MAX_OUTER_BLUR_RADIUS; 1620 1621 CellLayout cl = (CellLayout) getChildAt(0); 1622 1623 int[] size = cl.cellSpansToSize(spanX, spanY); 1624 1625 // The outline is used to visualize where the item will land if dropped 1626 mDragOutline = createDragOutline(b, canvas, bitmapPadding, size[0], size[1]); 1627 } 1628 1629 // we call this method whenever a drag and drop in Launcher finishes, even if Workspace was 1630 // never dragged over 1631 public void onDragStopped(boolean success) { 1632 // In the success case, DragController has already called onDragExit() 1633 if (!success) { 1634 doDragExit(null); 1635 } 1636 } 1637 1638 // We call this when we trigger an unshrink by clicking on the CellLayout cl 1639 public void unshrink(CellLayout clThatWasClicked) { 1640 unshrink(clThatWasClicked, false); 1641 } 1642 1643 public void unshrink(CellLayout clThatWasClicked, boolean springLoaded) { 1644 int newCurrentPage = indexOfChild(clThatWasClicked); 1645 if (isSmall()) { 1646 if (springLoaded) { 1647 setLayoutScale(mSpringLoadedShrinkFactor); 1648 } 1649 scrollToNewPageWithoutMovingPages(newCurrentPage); 1650 unshrink(true, springLoaded); 1651 } 1652 } 1653 1654 1655 public void enterSpringLoadedDragMode(CellLayout clThatWasClicked) { 1656 unshrink(clThatWasClicked, true); 1657 } 1658 1659 public void exitSpringLoadedDragMode(State shrinkState) { 1660 shrink(shrinkState); 1661 } 1662 1663 public void exitWidgetResizeMode() { 1664 DragLayer dragLayer = mLauncher.getDragLayer(); 1665 dragLayer.clearAllResizeFrames(); 1666 } 1667 1668 void unshrink(boolean animated) { 1669 unshrink(animated, false); 1670 } 1671 1672 private void initAnimationArrays() { 1673 final int childCount = getChildCount(); 1674 if (mOldTranslationXs != null) return; 1675 mOldTranslationXs = new float[childCount]; 1676 mOldTranslationYs = new float[childCount]; 1677 mOldScaleXs = new float[childCount]; 1678 mOldScaleYs = new float[childCount]; 1679 mOldBackgroundAlphas = new float[childCount]; 1680 mOldBackgroundAlphaMultipliers = new float[childCount]; 1681 mOldAlphas = new float[childCount]; 1682 mOldRotationYs = new float[childCount]; 1683 mNewTranslationXs = new float[childCount]; 1684 mNewTranslationYs = new float[childCount]; 1685 mNewScaleXs = new float[childCount]; 1686 mNewScaleYs = new float[childCount]; 1687 mNewBackgroundAlphas = new float[childCount]; 1688 mNewBackgroundAlphaMultipliers = new float[childCount]; 1689 mNewAlphas = new float[childCount]; 1690 mNewRotationYs = new float[childCount]; 1691 } 1692 1693 void unshrink(boolean animated, final boolean springLoaded) { 1694 if (mFirstLayout) { 1695 // (mFirstLayout == "first layout has not happened yet") 1696 // cancel any pending shrinks that were set earlier 1697 mSwitchStateAfterFirstLayout = false; 1698 mStateAfterFirstLayout = State.NORMAL; 1699 return; 1700 } 1701 1702 if (isSmall()) { 1703 float finalScaleFactor = 1.0f; 1704 float finalBackgroundAlpha = 0.0f; 1705 if (springLoaded) { 1706 finalScaleFactor = mSpringLoadedShrinkFactor; 1707 finalBackgroundAlpha = 1.0f; 1708 mState = State.SPRING_LOADED; 1709 } else { 1710 mState = State.NORMAL; 1711 } 1712 if (mAnimator != null) { 1713 mAnimator.cancel(); 1714 } 1715 1716 mAnimator = new AnimatorSet(); 1717 1718 // Workaround the AnimatorSet cancel bug... 1719 mShrinkAnimationEnabled = false; 1720 mUnshrinkAnimationEnabled = true; 1721 1722 final int screenCount = getChildCount(); 1723 initAnimationArrays(); 1724 1725 final int duration = getResources().getInteger(R.integer.config_workspaceUnshrinkTime); 1726 for (int i = 0; i < screenCount; i++) { 1727 final CellLayout cl = (CellLayout)getChildAt(i); 1728 float finalAlphaValue = 0f; 1729 float rotation = 0f; 1730 1731 // Set the final alpha depending on whether we are fading side pages. On phone ui, 1732 // we don't do any of the rotation, or the fading alpha in portrait. See the 1733 // ctor and screenScrolled(). 1734 if (mFadeInAdjacentScreens && !springLoaded) { 1735 finalAlphaValue = (i == mCurrentPage) ? 1f : 0f; 1736 } else { 1737 finalAlphaValue = 1f; 1738 } 1739 1740 if (LauncherApplication.isScreenLarge()) { 1741 if (i < mCurrentPage) { 1742 rotation = WORKSPACE_ROTATION; 1743 } else if (i > mCurrentPage) { 1744 rotation = -WORKSPACE_ROTATION; 1745 } 1746 } 1747 float finalAlphaMultiplierValue = 1f; 1748 1749 float translation = 0f; 1750 1751 // If the screen is not xlarge, then don't rotate the CellLayouts 1752 // NOTE: If we don't update the side pages alpha, then we should not hide the side 1753 // pages. see unshrink(). 1754 if (LauncherApplication.isScreenLarge()) { 1755 translation = getOffsetXForRotation(rotation, cl.getWidth(), cl.getHeight()); 1756 } 1757 1758 mOldAlphas[i] = cl.getAlpha(); 1759 mNewAlphas[i] = finalAlphaValue; 1760 if (animated) { 1761 mOldTranslationXs[i] = cl.getTranslationX(); 1762 mOldTranslationYs[i] = cl.getTranslationY(); 1763 mOldScaleXs[i] = cl.getScaleX(); 1764 mOldScaleYs[i] = cl.getScaleY(); 1765 mOldBackgroundAlphas[i] = cl.getBackgroundAlpha(); 1766 mOldBackgroundAlphaMultipliers[i] = cl.getBackgroundAlphaMultiplier(); 1767 mOldRotationYs[i] = cl.getRotationY(); 1768 1769 mNewTranslationXs[i] = translation; 1770 mNewTranslationYs[i] = 0f; 1771 mNewScaleXs[i] = finalScaleFactor; 1772 mNewScaleYs[i] = finalScaleFactor; 1773 mNewBackgroundAlphas[i] = finalBackgroundAlpha; 1774 mNewBackgroundAlphaMultipliers[i] = finalAlphaMultiplierValue; 1775 mNewRotationYs[i] = rotation; 1776 } else { 1777 cl.setTranslationX(translation); 1778 cl.setTranslationY(0.0f); 1779 cl.setScaleX(finalScaleFactor); 1780 cl.setScaleY(finalScaleFactor); 1781 cl.setBackgroundAlpha(0.0f); 1782 cl.setBackgroundAlphaMultiplier(finalAlphaMultiplierValue); 1783 cl.setAlpha(finalAlphaValue); 1784 cl.setRotationY(rotation); 1785 mUnshrinkAnimationListener.onAnimationEnd(null); 1786 } 1787 } 1788 1789 // Unshrink the hotset the same amount we are unshrinking the screens 1790 if (mLauncher.getHotseat() != null) { 1791 View hotseat = mLauncher.getHotseat().getLayout(); 1792 hotseat.setScaleX(finalScaleFactor); 1793 hotseat.setScaleY(finalScaleFactor); 1794 } 1795 1796 Display display = mLauncher.getWindowManager().getDefaultDisplay(); 1797 boolean isLandscape = display.getWidth() > display.getHeight(); 1798 // on phones, don't scroll the wallpaper horizontally or vertically when switching 1799 // to/from all apps 1800 final boolean enableWallpaperEffects = 1801 isHardwareAccelerated() && LauncherApplication.isScreenLarge(); 1802 if (enableWallpaperEffects) { 1803 switch (mState) { 1804 // animating out 1805 case SPRING_LOADED: 1806 if (animated) { 1807 mWallpaperOffset.setHorizontalCatchupConstant(isLandscape ? 0.49f : 0.46f); 1808 mWallpaperOffset.setVerticalCatchupConstant(isLandscape ? 0.49f : 0.46f); 1809 mWallpaperOffset.setOverrideHorizontalCatchupConstant(true); 1810 } 1811 break; 1812 case SMALL: 1813 // all apps 1814 if (animated) { 1815 mWallpaperOffset.setHorizontalCatchupConstant(isLandscape ? 0.65f : 0.65f); 1816 mWallpaperOffset.setVerticalCatchupConstant(isLandscape ? 0.65f : 0.65f); 1817 mWallpaperOffset.setOverrideHorizontalCatchupConstant(true); 1818 } 1819 break; 1820 } 1821 } 1822 if (animated) { 1823 ValueAnimator animWithInterpolator = 1824 ValueAnimator.ofFloat(0f, 1f).setDuration(duration); 1825 animWithInterpolator.setInterpolator(mZoomInInterpolator); 1826 1827 final float oldHorizontalWallpaperOffset = enableWallpaperEffects ? 1828 getHorizontalWallpaperOffset() : 0; 1829 final float oldVerticalWallpaperOffset = enableWallpaperEffects ? 1830 getVerticalWallpaperOffset() : 0; 1831 final float newHorizontalWallpaperOffset = enableWallpaperEffects ? 1832 wallpaperOffsetForCurrentScroll() : 0; 1833 final float newVerticalWallpaperOffset = enableWallpaperEffects ? 0.5f : 0; 1834 animWithInterpolator.addUpdateListener(new LauncherAnimatorUpdateListener() { 1835 public void onAnimationUpdate(float a, float b) { 1836 if (!mUnshrinkAnimationEnabled) return; 1837 mTransitionProgress = b; 1838 if (b == 0f) { 1839 // an optimization, but not required 1840 return; 1841 } 1842 invalidate(); 1843 if (enableWallpaperEffects) { 1844 setHorizontalWallpaperOffset(a * oldHorizontalWallpaperOffset 1845 + b * newHorizontalWallpaperOffset); 1846 setVerticalWallpaperOffset(a * oldVerticalWallpaperOffset 1847 + b * newVerticalWallpaperOffset); 1848 } 1849 for (int i = 0; i < screenCount; i++) { 1850 final CellLayout cl = (CellLayout) getChildAt(i); 1851 cl.fastInvalidate(); 1852 cl.setFastTranslationX( 1853 a * mOldTranslationXs[i] + b * mNewTranslationXs[i]); 1854 cl.setFastTranslationY( 1855 a * mOldTranslationYs[i] + b * mNewTranslationYs[i]); 1856 cl.setFastScaleX(a * mOldScaleXs[i] + b * mNewScaleXs[i]); 1857 cl.setFastScaleY(a * mOldScaleYs[i] + b * mNewScaleYs[i]); 1858 cl.setFastBackgroundAlpha( 1859 a * mOldBackgroundAlphas[i] + b * mNewBackgroundAlphas[i]); 1860 cl.setBackgroundAlphaMultiplier(a * mOldBackgroundAlphaMultipliers[i] + 1861 b * mNewBackgroundAlphaMultipliers[i]); 1862 cl.setFastAlpha(a * mOldAlphas[i] + b * mNewAlphas[i]); 1863 } 1864 } 1865 }); 1866 1867 ValueAnimator rotationAnim = 1868 ValueAnimator.ofFloat(0f, 1f).setDuration(duration); 1869 rotationAnim.setInterpolator(new DecelerateInterpolator(2.0f)); 1870 rotationAnim.addUpdateListener(new LauncherAnimatorUpdateListener() { 1871 public void onAnimationUpdate(float a, float b) { 1872 if (!mUnshrinkAnimationEnabled) return; 1873 // don't invalidate workspace because we did it above 1874 if (b == 0f) { 1875 // an optimization, but not required 1876 return; 1877 } 1878 for (int i = 0; i < screenCount; i++) { 1879 final CellLayout cl = (CellLayout) getChildAt(i); 1880 cl.setFastRotationY(a * mOldRotationYs[i] + b * mNewRotationYs[i]); 1881 } 1882 } 1883 }); 1884 1885 mAnimator.playTogether(animWithInterpolator, rotationAnim); 1886 // If we call this when we're not animated, onAnimationEnd is never called on 1887 // the listener; make sure we only use the listener when we're actually animating 1888 mAnimator.addListener(mUnshrinkAnimationListener); 1889 mAnimator.start(); 1890 } else { 1891 if (enableWallpaperEffects) { 1892 setHorizontalWallpaperOffset(wallpaperOffsetForCurrentScroll()); 1893 setVerticalWallpaperOffset(0.5f); 1894 updateWallpaperOffsetImmediately(); 1895 } 1896 } 1897 } 1898 1899 if (springLoaded) { 1900 // Right now we're covered by Apps Customize 1901 // Show the background gradient immediately, so the gradient will 1902 // be showing once AppsCustomize disappears 1903 animateBackgroundGradient(getResources().getInteger( 1904 R.integer.config_appsCustomizeSpringLoadedBgAlpha) / 100f, false); 1905 } else { 1906 // Fade the background gradient away 1907 animateBackgroundGradient(0f, true); 1908 } 1909 } 1910 1911 /** 1912 * Draw the View v into the given Canvas. 1913 * 1914 * @param v the view to draw 1915 * @param destCanvas the canvas to draw on 1916 * @param padding the horizontal and vertical padding to use when drawing 1917 */ 1918 private void drawDragView(View v, Canvas destCanvas, int padding, boolean pruneToDrawable) { 1919 final Rect clipRect = mTempRect; 1920 v.getDrawingRect(clipRect); 1921 1922 destCanvas.save(); 1923 if (v instanceof TextView && pruneToDrawable) { 1924 Drawable d = ((TextView) v).getCompoundDrawables()[1]; 1925 clipRect.set(0, 0, d.getIntrinsicWidth() + padding, d.getIntrinsicHeight() + padding); 1926 destCanvas.translate(padding / 2, padding / 2); 1927 d.draw(destCanvas); 1928 } else { 1929 if (v instanceof FolderIcon) { 1930 clipRect.bottom = getResources().getDimensionPixelSize(R.dimen.folder_preview_size); 1931 } else if (v instanceof BubbleTextView) { 1932 final BubbleTextView tv = (BubbleTextView) v; 1933 clipRect.bottom = tv.getExtendedPaddingTop() - (int) BubbleTextView.PADDING_V + 1934 tv.getLayout().getLineTop(0); 1935 } else if (v instanceof TextView) { 1936 final TextView tv = (TextView) v; 1937 clipRect.bottom = tv.getExtendedPaddingTop() - tv.getCompoundDrawablePadding() + 1938 tv.getLayout().getLineTop(0); 1939 } 1940 destCanvas.translate(-v.getScrollX() + padding / 2, -v.getScrollY() + padding / 2); 1941 destCanvas.clipRect(clipRect, Op.REPLACE); 1942 v.draw(destCanvas); 1943 } 1944 destCanvas.restore(); 1945 } 1946 1947 /** 1948 * Returns a new bitmap to show when the given View is being dragged around. 1949 * Responsibility for the bitmap is transferred to the caller. 1950 */ 1951 public Bitmap createDragBitmap(View v, Canvas canvas, int padding) { 1952 final int outlineColor = getResources().getColor(R.color.drag_outline_color); 1953 Bitmap b; 1954 1955 if (v instanceof TextView) { 1956 Drawable d = ((TextView) v).getCompoundDrawables()[1]; 1957 b = Bitmap.createBitmap(d.getIntrinsicWidth() + padding, 1958 d.getIntrinsicHeight() + padding, Bitmap.Config.ARGB_8888); 1959 } else { 1960 b = Bitmap.createBitmap( 1961 v.getWidth() + padding, v.getHeight() + padding, Bitmap.Config.ARGB_8888); 1962 } 1963 1964 canvas.setBitmap(b); 1965 drawDragView(v, canvas, padding, true); 1966 mOutlineHelper.applyOuterBlur(b, canvas, outlineColor); 1967 canvas.setBitmap(null); 1968 1969 return b; 1970 } 1971 1972 /** 1973 * Returns a new bitmap to be used as the object outline, e.g. to visualize the drop location. 1974 * Responsibility for the bitmap is transferred to the caller. 1975 */ 1976 private Bitmap createDragOutline(View v, Canvas canvas, int padding) { 1977 final int outlineColor = getResources().getColor(R.color.drag_outline_color); 1978 final Bitmap b = Bitmap.createBitmap( 1979 v.getWidth() + padding, v.getHeight() + padding, Bitmap.Config.ARGB_8888); 1980 1981 canvas.setBitmap(b); 1982 drawDragView(v, canvas, padding, false); 1983 mOutlineHelper.applyMediumExpensiveOutlineWithBlur(b, canvas, outlineColor, outlineColor); 1984 canvas.setBitmap(null); 1985 return b; 1986 } 1987 1988 /** 1989 * Returns a new bitmap to be used as the object outline, e.g. to visualize the drop location. 1990 * Responsibility for the bitmap is transferred to the caller. 1991 */ 1992 private Bitmap createDragOutline(Bitmap orig, Canvas canvas, int padding, int w, int h) { 1993 final int outlineColor = getResources().getColor(R.color.drag_outline_color); 1994 final Bitmap b = Bitmap.createBitmap(w, h, Bitmap.Config.ARGB_8888); 1995 canvas.setBitmap(b); 1996 1997 Rect src = new Rect(0, 0, orig.getWidth(), orig.getHeight()); 1998 float scaleFactor = Math.min((w - padding) / (float) orig.getWidth(), 1999 (h - padding) / (float) orig.getHeight()); 2000 int scaledWidth = (int) (scaleFactor * orig.getWidth()); 2001 int scaledHeight = (int) (scaleFactor * orig.getHeight()); 2002 Rect dst = new Rect(0, 0, scaledWidth, scaledHeight); 2003 2004 // center the image 2005 dst.offset((w - scaledWidth) / 2, (h - scaledHeight) / 2); 2006 2007 Paint p = new Paint(); 2008 p.setFilterBitmap(true); 2009 canvas.drawBitmap(orig, src, dst, p); 2010 mOutlineHelper.applyMediumExpensiveOutlineWithBlur(b, canvas, outlineColor, outlineColor); 2011 canvas.setBitmap(null); 2012 2013 return b; 2014 } 2015 2016 /** 2017 * Creates a drag outline to represent a drop (that we don't have the actual information for 2018 * yet). May be changed in the future to alter the drop outline slightly depending on the 2019 * clip description mime data. 2020 */ 2021 private Bitmap createExternalDragOutline(Canvas canvas, int padding) { 2022 Resources r = getResources(); 2023 final int outlineColor = r.getColor(R.color.drag_outline_color); 2024 final int iconWidth = r.getDimensionPixelSize(R.dimen.workspace_cell_width); 2025 final int iconHeight = r.getDimensionPixelSize(R.dimen.workspace_cell_height); 2026 final int rectRadius = r.getDimensionPixelSize(R.dimen.external_drop_icon_rect_radius); 2027 final int inset = (int) (Math.min(iconWidth, iconHeight) * 0.2f); 2028 final Bitmap b = Bitmap.createBitmap( 2029 iconWidth + padding, iconHeight + padding, Bitmap.Config.ARGB_8888); 2030 2031 canvas.setBitmap(b); 2032 canvas.drawRoundRect(new RectF(inset, inset, iconWidth - inset, iconHeight - inset), 2033 rectRadius, rectRadius, mExternalDragOutlinePaint); 2034 mOutlineHelper.applyMediumExpensiveOutlineWithBlur(b, canvas, outlineColor, outlineColor); 2035 canvas.setBitmap(null); 2036 return b; 2037 } 2038 2039 void startDrag(CellLayout.CellInfo cellInfo) { 2040 View child = cellInfo.cell; 2041 2042 // Make sure the drag was started by a long press as opposed to a long click. 2043 if (!child.isInTouchMode()) { 2044 return; 2045 } 2046 2047 mDragInfo = cellInfo; 2048 child.setVisibility(GONE); 2049 2050 child.clearFocus(); 2051 child.setPressed(false); 2052 2053 final Canvas canvas = new Canvas(); 2054 2055 // We need to add extra padding to the bitmap to make room for the glow effect 2056 final int bitmapPadding = HolographicOutlineHelper.MAX_OUTER_BLUR_RADIUS; 2057 2058 // The outline is used to visualize where the item will land if dropped 2059 mDragOutline = createDragOutline(child, canvas, bitmapPadding); 2060 beginDragShared(child, this); 2061 } 2062 2063 public void beginDragShared(View child, DragSource source) { 2064 // We need to add extra padding to the bitmap to make room for the glow effect 2065 final int bitmapPadding = HolographicOutlineHelper.MAX_OUTER_BLUR_RADIUS; 2066 2067 // The drag bitmap follows the touch point around on the screen 2068 final Bitmap b = createDragBitmap(child, new Canvas(), bitmapPadding); 2069 2070 final int bmpWidth = b.getWidth(); 2071 2072 mLauncher.getDragLayer().getLocationInDragLayer(child, mTempXY); 2073 final int dragLayerX = (int) mTempXY[0] + (child.getWidth() - bmpWidth) / 2; 2074 int dragLayerY = mTempXY[1] - bitmapPadding / 2; 2075 2076 Rect dragRect = null; 2077 if (child instanceof BubbleTextView) { 2078 int iconSize = getResources().getDimensionPixelSize(R.dimen.app_icon_size); 2079 int top = child.getPaddingTop(); 2080 int left = (bmpWidth - iconSize) / 2; 2081 int right = left + iconSize; 2082 int bottom = top + iconSize; 2083 dragLayerY += top; 2084 dragRect = new Rect(left, top, right, bottom); 2085 } else if (child instanceof FolderIcon) { 2086 int previewSize = getResources().getDimensionPixelSize(R.dimen.folder_preview_size); 2087 dragRect = new Rect(0, 0, child.getWidth(), previewSize); 2088 } 2089 2090 mDragController.startDrag(b, dragLayerX, dragLayerY, source, child.getTag(), 2091 DragController.DRAG_ACTION_MOVE, dragRect); 2092 b.recycle(); 2093 } 2094 2095 void addApplicationShortcut(ShortcutInfo info, CellLayout target, long container, int screen, 2096 int cellX, int cellY, boolean insertAtFirst, int intersectX, int intersectY) { 2097 View view = mLauncher.createShortcut(R.layout.application, target, (ShortcutInfo) info); 2098 2099 final int[] cellXY = new int[2]; 2100 target.findCellForSpanThatIntersects(cellXY, 1, 1, intersectX, intersectY); 2101 addInScreen(view, container, screen, cellXY[0], cellXY[1], 1, 1, insertAtFirst); 2102 LauncherModel.addOrMoveItemInDatabase(mLauncher, info, container, screen, cellXY[0], 2103 cellXY[1]); 2104 } 2105 2106 public boolean transitionStateShouldAllowDrop() { 2107 return (!isSwitchingState() || mTransitionProgress > 0.5f); 2108 } 2109 2110 /** 2111 * {@inheritDoc} 2112 */ 2113 public boolean acceptDrop(DragObject d) { 2114 // If it's an external drop (e.g. from All Apps), check if it should be accepted 2115 if (d.dragSource != this) { 2116 // Don't accept the drop if we're not over a screen at time of drop 2117 if (mDragTargetLayout == null) { 2118 return false; 2119 } 2120 if (!transitionStateShouldAllowDrop()) return false; 2121 2122 mDragViewVisualCenter = getDragViewVisualCenter(d.x, d.y, d.xOffset, d.yOffset, 2123 d.dragView, mDragViewVisualCenter); 2124 2125 int spanX = 1; 2126 int spanY = 1; 2127 View ignoreView = null; 2128 if (mDragInfo != null) { 2129 final CellLayout.CellInfo dragCellInfo = mDragInfo; 2130 spanX = dragCellInfo.spanX; 2131 spanY = dragCellInfo.spanY; 2132 ignoreView = dragCellInfo.cell; 2133 } else { 2134 final ItemInfo dragInfo = (ItemInfo) d.dragInfo; 2135 spanX = dragInfo.spanX; 2136 spanY = dragInfo.spanY; 2137 } 2138 2139 mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], 2140 (int) mDragViewVisualCenter[1], spanX, spanY, mDragTargetLayout, mTargetCell); 2141 if (willCreateUserFolder((ItemInfo) d.dragInfo, mDragTargetLayout, mTargetCell, true)) { 2142 return true; 2143 } 2144 if (willAddToExistingUserFolder((ItemInfo) d.dragInfo, mDragTargetLayout, 2145 mTargetCell)) { 2146 return true; 2147 } 2148 2149 2150 // Don't accept the drop if there's no room for the item 2151 if (!mDragTargetLayout.findCellForSpanIgnoring(null, spanX, spanY, ignoreView)) { 2152 mLauncher.showOutOfSpaceMessage(); 2153 return false; 2154 } 2155 } 2156 return true; 2157 } 2158 2159 boolean willCreateUserFolder(ItemInfo info, CellLayout target, int[] targetCell, 2160 boolean considerTimeout) { 2161 View dropOverView = target.getChildAt(targetCell[0], targetCell[1]); 2162 2163 boolean hasntMoved = false; 2164 if (mDragInfo != null) { 2165 CellLayout cellParent = getParentCellLayoutForView(mDragInfo.cell); 2166 hasntMoved = (mDragInfo.cellX == targetCell[0] && 2167 mDragInfo.cellY == targetCell[1]) && (cellParent == target); 2168 } 2169 2170 if (dropOverView == null || hasntMoved || (considerTimeout && !mCreateUserFolderOnDrop)) { 2171 return false; 2172 } 2173 2174 boolean aboveShortcut = (dropOverView.getTag() instanceof ShortcutInfo); 2175 boolean willBecomeShortcut = 2176 (info.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPLICATION || 2177 info.itemType == LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT); 2178 2179 return (aboveShortcut && willBecomeShortcut); 2180 } 2181 2182 boolean willAddToExistingUserFolder(Object dragInfo, CellLayout target, int[] targetCell) { 2183 View dropOverView = target.getChildAt(targetCell[0], targetCell[1]); 2184 if (dropOverView instanceof FolderIcon) { 2185 FolderIcon fi = (FolderIcon) dropOverView; 2186 if (fi.acceptDrop(dragInfo)) { 2187 return true; 2188 } 2189 } 2190 return false; 2191 } 2192 2193 boolean createUserFolderIfNecessary(View newView, long container, CellLayout target, 2194 int[] targetCell, boolean external, DragView dragView, Runnable postAnimationRunnable) { 2195 View v = target.getChildAt(targetCell[0], targetCell[1]); 2196 boolean hasntMoved = false; 2197 if (mDragInfo != null) { 2198 CellLayout cellParent = getParentCellLayoutForView(mDragInfo.cell); 2199 hasntMoved = (mDragInfo.cellX == targetCell[0] && 2200 mDragInfo.cellY == targetCell[1]) && (cellParent == target); 2201 } 2202 2203 if (v == null || hasntMoved || !mCreateUserFolderOnDrop) return false; 2204 mCreateUserFolderOnDrop = false; 2205 final int screen = (targetCell == null) ? mDragInfo.screen : indexOfChild(target); 2206 2207 boolean aboveShortcut = (v.getTag() instanceof ShortcutInfo); 2208 boolean willBecomeShortcut = (newView.getTag() instanceof ShortcutInfo); 2209 2210 if (aboveShortcut && willBecomeShortcut) { 2211 ShortcutInfo sourceInfo = (ShortcutInfo) newView.getTag(); 2212 ShortcutInfo destInfo = (ShortcutInfo) v.getTag(); 2213 // if the drag started here, we need to remove it from the workspace 2214 if (!external) { 2215 getParentCellLayoutForView(mDragInfo.cell).removeView(mDragInfo.cell); 2216 } 2217 2218 Rect folderLocation = new Rect(); 2219 float scale = mLauncher.getDragLayer().getDescendantRectRelativeToSelf(v, folderLocation); 2220 target.removeView(v); 2221 2222 FolderIcon fi = 2223 mLauncher.addFolder(target, container, screen, targetCell[0], targetCell[1]); 2224 destInfo.cellX = -1; 2225 destInfo.cellY = -1; 2226 sourceInfo.cellX = -1; 2227 sourceInfo.cellY = -1; 2228 2229 fi.performCreateAnimation(destInfo, v, sourceInfo, dragView, folderLocation, scale, 2230 postAnimationRunnable); 2231 return true; 2232 } 2233 return false; 2234 } 2235 2236 boolean addToExistingFolderIfNecessary(View newView, CellLayout target, int[] targetCell, 2237 DragObject d, boolean external) { 2238 View dropOverView = target.getChildAt(targetCell[0], targetCell[1]); 2239 if (dropOverView instanceof FolderIcon) { 2240 FolderIcon fi = (FolderIcon) dropOverView; 2241 if (fi.acceptDrop(d.dragInfo)) { 2242 fi.onDrop(d); 2243 2244 // if the drag started here, we need to remove it from the workspace 2245 if (!external) { 2246 getParentCellLayoutForView(mDragInfo.cell).removeView(mDragInfo.cell); 2247 } 2248 return true; 2249 } 2250 } 2251 return false; 2252 } 2253 2254 public void onDrop(DragObject d) { 2255 mDragViewVisualCenter = getDragViewVisualCenter(d.x, d.y, d.xOffset, d.yOffset, d.dragView, 2256 mDragViewVisualCenter); 2257 2258 // We want the point to be mapped to the dragTarget. 2259 if (mDragTargetLayout != null) { 2260 if (mLauncher.isHotseatLayout(mDragTargetLayout)) { 2261 mapPointFromSelfToSibling(mLauncher.getHotseat(), mDragViewVisualCenter); 2262 } else { 2263 mapPointFromSelfToChild(mDragTargetLayout, mDragViewVisualCenter, null); 2264 } 2265 } 2266 2267 CellLayout dropTargetLayout = mDragTargetLayout; 2268 2269 int snapScreen = -1; 2270 if (d.dragSource != this) { 2271 final int[] touchXY = new int[] { (int) mDragViewVisualCenter[0], 2272 (int) mDragViewVisualCenter[1] }; 2273 onDropExternal(touchXY, d.dragInfo, dropTargetLayout, false, d); 2274 } else if (mDragInfo != null) { 2275 final View cell = mDragInfo.cell; 2276 2277 boolean continueDrop = true; 2278 if (mLauncher.isHotseatLayout(mDragTargetLayout) && d.dragInfo instanceof ItemInfo) { 2279 ItemInfo info = (ItemInfo) d.dragInfo; 2280 if (info.spanX > 1 || info.spanY > 1) { 2281 continueDrop = false; 2282 Toast.makeText(getContext(), R.string.invalid_hotseat_item, 2283 Toast.LENGTH_SHORT).show(); 2284 } 2285 } 2286 2287 if (continueDrop && dropTargetLayout != null) { 2288 // Move internally 2289 boolean hasMovedLayouts = (getParentCellLayoutForView(cell) != dropTargetLayout); 2290 boolean hasMovedIntoHotseat = mLauncher.isHotseatLayout(dropTargetLayout); 2291 long container = hasMovedIntoHotseat ? 2292 LauncherSettings.Favorites.CONTAINER_HOTSEAT : 2293 LauncherSettings.Favorites.CONTAINER_DESKTOP; 2294 int screen = (mTargetCell[0] < 0) ? 2295 mDragInfo.screen : indexOfChild(dropTargetLayout); 2296 int spanX = mDragInfo != null ? mDragInfo.spanX : 1; 2297 int spanY = mDragInfo != null ? mDragInfo.spanY : 1; 2298 // First we find the cell nearest to point at which the item is 2299 // dropped, without any consideration to whether there is an item there. 2300 mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], (int) 2301 mDragViewVisualCenter[1], spanX, spanY, dropTargetLayout, mTargetCell); 2302 // If the item being dropped is a shortcut and the nearest drop 2303 // cell also contains a shortcut, then create a folder with the two shortcuts. 2304 if (!mInScrollArea && createUserFolderIfNecessary(cell, container, 2305 dropTargetLayout, mTargetCell, false, d.dragView, null)) { 2306 return; 2307 } 2308 2309 if (addToExistingFolderIfNecessary(cell, dropTargetLayout, mTargetCell, d, false)) { 2310 return; 2311 } 2312 2313 // Aside from the special case where we're dropping a shortcut onto a shortcut, 2314 // we need to find the nearest cell location that is vacant 2315 mTargetCell = findNearestVacantArea((int) mDragViewVisualCenter[0], 2316 (int) mDragViewVisualCenter[1], mDragInfo.spanX, mDragInfo.spanY, cell, 2317 dropTargetLayout, mTargetCell); 2318 2319 if (mCurrentPage != screen && !hasMovedIntoHotseat) { 2320 snapScreen = screen; 2321 snapToPage(screen); 2322 } 2323 2324 if (mTargetCell[0] >= 0 && mTargetCell[1] >= 0) { 2325 if (hasMovedLayouts) { 2326 // Reparent the view 2327 getParentCellLayoutForView(cell).removeView(cell); 2328 addInScreen(cell, container, screen, mTargetCell[0], mTargetCell[1], 2329 mDragInfo.spanX, mDragInfo.spanY); 2330 } 2331 2332 // update the item's position after drop 2333 final ItemInfo info = (ItemInfo) cell.getTag(); 2334 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) cell.getLayoutParams(); 2335 dropTargetLayout.onMove(cell, mTargetCell[0], mTargetCell[1]); 2336 lp.cellX = mTargetCell[0]; 2337 lp.cellY = mTargetCell[1]; 2338 cell.setId(LauncherModel.getCellLayoutChildId(container, mDragInfo.screen, 2339 mTargetCell[0], mTargetCell[1], mDragInfo.spanX, mDragInfo.spanY)); 2340 2341 if (container != LauncherSettings.Favorites.CONTAINER_HOTSEAT && 2342 cell instanceof LauncherAppWidgetHostView) { 2343 final CellLayout cellLayout = dropTargetLayout; 2344 // We post this call so that the widget has a chance to be placed 2345 // in its final location 2346 2347 final LauncherAppWidgetHostView hostView = (LauncherAppWidgetHostView) cell; 2348 AppWidgetProviderInfo pinfo = hostView.getAppWidgetInfo(); 2349 if (pinfo.resizeMode != AppWidgetProviderInfo.RESIZE_NONE) { 2350 final Runnable resizeRunnable = new Runnable() { 2351 public void run() { 2352 DragLayer dragLayer = mLauncher.getDragLayer(); 2353 dragLayer.addResizeFrame(info, hostView, cellLayout); 2354 } 2355 }; 2356 post(new Runnable() { 2357 public void run() { 2358 if (!isPageMoving()) { 2359 resizeRunnable.run(); 2360 } else { 2361 mDelayedResizeRunnable = resizeRunnable; 2362 } 2363 } 2364 }); 2365 } 2366 } 2367 2368 LauncherModel.moveItemInDatabase(mLauncher, info, container, screen, lp.cellX, 2369 lp.cellY); 2370 } 2371 } 2372 2373 final CellLayout parent = (CellLayout) cell.getParent().getParent(); 2374 2375 // Prepare it to be animated into its new position 2376 // This must be called after the view has been re-parented 2377 final Runnable disableHardwareLayersRunnable = new Runnable() { 2378 @Override 2379 public void run() { 2380 mAnimatingViewIntoPlace = false; 2381 updateChildrenLayersEnabled(); 2382 } 2383 }; 2384 mAnimatingViewIntoPlace = true; 2385 if (d.dragView.hasDrawn()) { 2386 int duration = snapScreen < 0 ? -1 : ADJACENT_SCREEN_DROP_DURATION; 2387 setFinalScrollForPageChange(snapScreen); 2388 mLauncher.getDragLayer().animateViewIntoPosition(d.dragView, cell, duration, 2389 disableHardwareLayersRunnable); 2390 resetFinalScrollForPageChange(snapScreen); 2391 } else { 2392 cell.setVisibility(VISIBLE); 2393 } 2394 parent.onDropChild(cell); 2395 } 2396 } 2397 2398 public void setFinalScrollForPageChange(int screen) { 2399 if (screen >= 0) { 2400 mSavedScrollX = getScrollX(); 2401 CellLayout cl = (CellLayout) getChildAt(screen); 2402 mSavedTranslationX = cl.getTranslationX(); 2403 mSavedRotationY = cl.getRotationY(); 2404 final int newX = getChildOffset(screen) - getRelativeChildOffset(screen); 2405 setScrollX(newX); 2406 cl.setTranslationX(0f); 2407 cl.setRotationY(0f); 2408 } 2409 } 2410 2411 public void resetFinalScrollForPageChange(int screen) { 2412 if (screen >= 0) { 2413 CellLayout cl = (CellLayout) getChildAt(screen); 2414 setScrollX(mSavedScrollX); 2415 cl.setTranslationX(mSavedTranslationX); 2416 cl.setRotationY(mSavedRotationY); 2417 } 2418 } 2419 2420 public void getViewLocationRelativeToSelf(View v, int[] location) { 2421 getLocationInWindow(location); 2422 int x = location[0]; 2423 int y = location[1]; 2424 2425 v.getLocationInWindow(location); 2426 int vX = location[0]; 2427 int vY = location[1]; 2428 2429 location[0] = vX - x; 2430 location[1] = vY - y; 2431 } 2432 2433 public void onDragEnter(DragObject d) { 2434 if (mDragTargetLayout != null) { 2435 mDragTargetLayout.setIsDragOverlapping(false); 2436 mDragTargetLayout.onDragExit(); 2437 } 2438 mDragTargetLayout = getCurrentDropLayout(); 2439 mDragTargetLayout.setIsDragOverlapping(true); 2440 mDragTargetLayout.onDragEnter(); 2441 2442 // Because we don't have space in the Phone UI (the CellLayouts run to the edge) we 2443 // don't need to show the outlines 2444 if (LauncherApplication.isScreenLarge()) { 2445 showOutlines(); 2446 } 2447 } 2448 2449 private void doDragExit(DragObject d) { 2450 // Clean up folders 2451 cleanupFolderCreation(d); 2452 2453 // Reset the scroll area and previous drag target 2454 onResetScrollArea(); 2455 2456 if (mDragTargetLayout != null) { 2457 mDragTargetLayout.setIsDragOverlapping(false); 2458 mDragTargetLayout.onDragExit(); 2459 } 2460 mLastDragOverView = null; 2461 2462 if (!mIsPageMoving) { 2463 hideOutlines(); 2464 } 2465 } 2466 2467 public void onDragExit(DragObject d) { 2468 doDragExit(d); 2469 } 2470 2471 public DropTarget getDropTargetDelegate(DragObject d) { 2472 return null; 2473 } 2474 2475 /** 2476 * Tests to see if the drop will be accepted by Launcher, and if so, includes additional data 2477 * in the returned structure related to the widgets that match the drop (or a null list if it is 2478 * a shortcut drop). If the drop is not accepted then a null structure is returned. 2479 */ 2480 private Pair<Integer, List<WidgetMimeTypeHandlerData>> validateDrag(DragEvent event) { 2481 final LauncherModel model = mLauncher.getModel(); 2482 final ClipDescription desc = event.getClipDescription(); 2483 final int mimeTypeCount = desc.getMimeTypeCount(); 2484 for (int i = 0; i < mimeTypeCount; ++i) { 2485 final String mimeType = desc.getMimeType(i); 2486 if (mimeType.equals(InstallShortcutReceiver.SHORTCUT_MIMETYPE)) { 2487 return new Pair<Integer, List<WidgetMimeTypeHandlerData>>(i, null); 2488 } else { 2489 final List<WidgetMimeTypeHandlerData> widgets = 2490 model.resolveWidgetsForMimeType(mContext, mimeType); 2491 if (widgets.size() > 0) { 2492 return new Pair<Integer, List<WidgetMimeTypeHandlerData>>(i, widgets); 2493 } 2494 } 2495 } 2496 return null; 2497 } 2498 2499 /** 2500 * Global drag and drop handler 2501 */ 2502 @Override 2503 public boolean onDragEvent(DragEvent event) { 2504 final ClipDescription desc = event.getClipDescription(); 2505 final CellLayout layout = (CellLayout) getChildAt(mCurrentPage); 2506 final int[] pos = new int[2]; 2507 layout.getLocationOnScreen(pos); 2508 // We need to offset the drag coordinates to layout coordinate space 2509 final int x = (int) event.getX() - pos[0]; 2510 final int y = (int) event.getY() - pos[1]; 2511 2512 switch (event.getAction()) { 2513 case DragEvent.ACTION_DRAG_STARTED: { 2514 // Validate this drag 2515 Pair<Integer, List<WidgetMimeTypeHandlerData>> test = validateDrag(event); 2516 if (test != null) { 2517 boolean isShortcut = (test.second == null); 2518 if (isShortcut) { 2519 // Check if we have enough space on this screen to add a new shortcut 2520 if (!layout.findCellForSpan(pos, 1, 1)) { 2521 mLauncher.showOutOfSpaceMessage(); 2522 return false; 2523 } 2524 } 2525 } else { 2526 // Show error message if we couldn't accept any of the items 2527 Toast.makeText(mContext, mContext.getString(R.string.external_drop_widget_error), 2528 Toast.LENGTH_SHORT).show(); 2529 return false; 2530 } 2531 2532 // Create the drag outline 2533 // We need to add extra padding to the bitmap to make room for the glow effect 2534 final Canvas canvas = new Canvas(); 2535 final int bitmapPadding = HolographicOutlineHelper.MAX_OUTER_BLUR_RADIUS; 2536 mDragOutline = createExternalDragOutline(canvas, bitmapPadding); 2537 2538 // Show the current page outlines to indicate that we can accept this drop 2539 showOutlines(); 2540 layout.setIsDragOccuring(true); 2541 layout.onDragEnter(); 2542 layout.visualizeDropLocation(null, mDragOutline, x, y, 1, 1); 2543 2544 return true; 2545 } 2546 case DragEvent.ACTION_DRAG_LOCATION: 2547 // Visualize the drop location 2548 layout.visualizeDropLocation(null, mDragOutline, x, y, 1, 1); 2549 return true; 2550 case DragEvent.ACTION_DROP: { 2551 // Try and add any shortcuts 2552 final LauncherModel model = mLauncher.getModel(); 2553 final ClipData data = event.getClipData(); 2554 2555 // We assume that the mime types are ordered in descending importance of 2556 // representation. So we enumerate the list of mime types and alert the 2557 // user if any widgets can handle the drop. Only the most preferred 2558 // representation will be handled. 2559 pos[0] = x; 2560 pos[1] = y; 2561 Pair<Integer, List<WidgetMimeTypeHandlerData>> test = validateDrag(event); 2562 if (test != null) { 2563 final int index = test.first; 2564 final List<WidgetMimeTypeHandlerData> widgets = test.second; 2565 final boolean isShortcut = (widgets == null); 2566 final String mimeType = desc.getMimeType(index); 2567 if (isShortcut) { 2568 final Intent intent = data.getItemAt(index).getIntent(); 2569 Object info = model.infoFromShortcutIntent(mContext, intent, data.getIcon()); 2570 onDropExternal(new int[] { x, y }, info, layout, false); 2571 } else { 2572 if (widgets.size() == 1) { 2573 // If there is only one item, then go ahead and add and configure 2574 // that widget 2575 final AppWidgetProviderInfo widgetInfo = widgets.get(0).widgetInfo; 2576 final PendingAddWidgetInfo createInfo = 2577 new PendingAddWidgetInfo(widgetInfo, mimeType, data); 2578 mLauncher.addAppWidgetFromDrop(createInfo, 2579 LauncherSettings.Favorites.CONTAINER_DESKTOP, mCurrentPage, null, pos); 2580 } else { 2581 // Show the widget picker dialog if there is more than one widget 2582 // that can handle this data type 2583 final InstallWidgetReceiver.WidgetListAdapter adapter = 2584 new InstallWidgetReceiver.WidgetListAdapter(mLauncher, mimeType, 2585 data, widgets, layout, mCurrentPage, pos); 2586 final AlertDialog.Builder builder = 2587 new AlertDialog.Builder(mContext); 2588 builder.setAdapter(adapter, adapter); 2589 builder.setCancelable(true); 2590 builder.setTitle(mContext.getString( 2591 R.string.external_drop_widget_pick_title)); 2592 builder.setIcon(R.drawable.ic_no_applications); 2593 builder.show(); 2594 } 2595 } 2596 } 2597 return true; 2598 } 2599 case DragEvent.ACTION_DRAG_ENDED: 2600 // Hide the page outlines after the drop 2601 layout.setIsDragOccuring(false); 2602 layout.onDragExit(); 2603 hideOutlines(); 2604 return true; 2605 } 2606 return super.onDragEvent(event); 2607 } 2608 2609 /* 2610 * 2611 * Convert the 2D coordinate xy from the parent View's coordinate space to this CellLayout's 2612 * coordinate space. The argument xy is modified with the return result. 2613 * 2614 */ 2615 void mapPointFromSelfToChild(View v, float[] xy) { 2616 mapPointFromSelfToChild(v, xy, null); 2617 } 2618 2619 /* 2620 * 2621 * Convert the 2D coordinate xy from the parent View's coordinate space to this CellLayout's 2622 * coordinate space. The argument xy is modified with the return result. 2623 * 2624 * if cachedInverseMatrix is not null, this method will just use that matrix instead of 2625 * computing it itself; we use this to avoid redundant matrix inversions in 2626 * findMatchingPageForDragOver 2627 * 2628 */ 2629 void mapPointFromSelfToChild(View v, float[] xy, Matrix cachedInverseMatrix) { 2630 if (cachedInverseMatrix == null) { 2631 v.getMatrix().invert(mTempInverseMatrix); 2632 cachedInverseMatrix = mTempInverseMatrix; 2633 } 2634 xy[0] = xy[0] + mScrollX - v.getLeft(); 2635 xy[1] = xy[1] + mScrollY - v.getTop(); 2636 cachedInverseMatrix.mapPoints(xy); 2637 } 2638 2639 /* 2640 * Maps a point from the Workspace's coordinate system to another sibling view's. (Workspace 2641 * covers the full screen) 2642 */ 2643 void mapPointFromSelfToSibling(View v, float[] xy) { 2644 xy[0] = xy[0] - v.getLeft(); 2645 xy[1] = xy[1] - v.getTop(); 2646 } 2647 2648 /* 2649 * 2650 * Convert the 2D coordinate xy from this CellLayout's coordinate space to 2651 * the parent View's coordinate space. The argument xy is modified with the return result. 2652 * 2653 */ 2654 void mapPointFromChildToSelf(View v, float[] xy) { 2655 v.getMatrix().mapPoints(xy); 2656 xy[0] -= (mScrollX - v.getLeft()); 2657 xy[1] -= (mScrollY - v.getTop()); 2658 } 2659 2660 static private float squaredDistance(float[] point1, float[] point2) { 2661 float distanceX = point1[0] - point2[0]; 2662 float distanceY = point2[1] - point2[1]; 2663 return distanceX * distanceX + distanceY * distanceY; 2664 } 2665 2666 /* 2667 * 2668 * Returns true if the passed CellLayout cl overlaps with dragView 2669 * 2670 */ 2671 boolean overlaps(CellLayout cl, DragView dragView, 2672 int dragViewX, int dragViewY, Matrix cachedInverseMatrix) { 2673 // Transform the coordinates of the item being dragged to the CellLayout's coordinates 2674 final float[] draggedItemTopLeft = mTempDragCoordinates; 2675 draggedItemTopLeft[0] = dragViewX; 2676 draggedItemTopLeft[1] = dragViewY; 2677 final float[] draggedItemBottomRight = mTempDragBottomRightCoordinates; 2678 draggedItemBottomRight[0] = draggedItemTopLeft[0] + dragView.getDragRegionWidth(); 2679 draggedItemBottomRight[1] = draggedItemTopLeft[1] + dragView.getDragRegionHeight(); 2680 2681 // Transform the dragged item's top left coordinates 2682 // to the CellLayout's local coordinates 2683 mapPointFromSelfToChild(cl, draggedItemTopLeft, cachedInverseMatrix); 2684 float overlapRegionLeft = Math.max(0f, draggedItemTopLeft[0]); 2685 float overlapRegionTop = Math.max(0f, draggedItemTopLeft[1]); 2686 2687 if (overlapRegionLeft <= cl.getWidth() && overlapRegionTop >= 0) { 2688 // Transform the dragged item's bottom right coordinates 2689 // to the CellLayout's local coordinates 2690 mapPointFromSelfToChild(cl, draggedItemBottomRight, cachedInverseMatrix); 2691 float overlapRegionRight = Math.min(cl.getWidth(), draggedItemBottomRight[0]); 2692 float overlapRegionBottom = Math.min(cl.getHeight(), draggedItemBottomRight[1]); 2693 2694 if (overlapRegionRight >= 0 && overlapRegionBottom <= cl.getHeight()) { 2695 float overlap = (overlapRegionRight - overlapRegionLeft) * 2696 (overlapRegionBottom - overlapRegionTop); 2697 if (overlap > 0) { 2698 return true; 2699 } 2700 } 2701 } 2702 return false; 2703 } 2704 2705 /* 2706 * 2707 * This method returns the CellLayout that is currently being dragged to. In order to drag 2708 * to a CellLayout, either the touch point must be directly over the CellLayout, or as a second 2709 * strategy, we see if the dragView is overlapping any CellLayout and choose the closest one 2710 * 2711 * Return null if no CellLayout is currently being dragged over 2712 * 2713 */ 2714 private CellLayout findMatchingPageForDragOver( 2715 DragView dragView, float originX, float originY, boolean exact) { 2716 // We loop through all the screens (ie CellLayouts) and see which ones overlap 2717 // with the item being dragged and then choose the one that's closest to the touch point 2718 final int screenCount = getChildCount(); 2719 CellLayout bestMatchingScreen = null; 2720 float smallestDistSoFar = Float.MAX_VALUE; 2721 2722 for (int i = 0; i < screenCount; i++) { 2723 CellLayout cl = (CellLayout) getChildAt(i); 2724 2725 final float[] touchXy = {originX, originY}; 2726 // Transform the touch coordinates to the CellLayout's local coordinates 2727 // If the touch point is within the bounds of the cell layout, we can return immediately 2728 cl.getMatrix().invert(mTempInverseMatrix); 2729 mapPointFromSelfToChild(cl, touchXy, mTempInverseMatrix); 2730 2731 if (touchXy[0] >= 0 && touchXy[0] <= cl.getWidth() && 2732 touchXy[1] >= 0 && touchXy[1] <= cl.getHeight()) { 2733 return cl; 2734 } 2735 2736 if (!exact && overlaps(cl, dragView, (int) originX, (int) originY, mTempInverseMatrix)) { 2737 // Get the center of the cell layout in screen coordinates 2738 final float[] cellLayoutCenter = mTempCellLayoutCenterCoordinates; 2739 cellLayoutCenter[0] = cl.getWidth()/2; 2740 cellLayoutCenter[1] = cl.getHeight()/2; 2741 mapPointFromChildToSelf(cl, cellLayoutCenter); 2742 2743 touchXy[0] = originX; 2744 touchXy[1] = originY; 2745 2746 // Calculate the distance between the center of the CellLayout 2747 // and the touch point 2748 float dist = squaredDistance(touchXy, cellLayoutCenter); 2749 2750 if (dist < smallestDistSoFar) { 2751 smallestDistSoFar = dist; 2752 bestMatchingScreen = cl; 2753 } 2754 } 2755 } 2756 return bestMatchingScreen; 2757 } 2758 2759 // This is used to compute the visual center of the dragView. This point is then 2760 // used to visualize drop locations and determine where to drop an item. The idea is that 2761 // the visual center represents the user's interpretation of where the item is, and hence 2762 // is the appropriate point to use when determining drop location. 2763 private float[] getDragViewVisualCenter(int x, int y, int xOffset, int yOffset, 2764 DragView dragView, float[] recycle) { 2765 float res[]; 2766 if (recycle == null) { 2767 res = new float[2]; 2768 } else { 2769 res = recycle; 2770 } 2771 2772 // First off, the drag view has been shifted in a way that is not represented in the 2773 // x and y values or the x/yOffsets. Here we account for that shift. 2774 x += getResources().getDimensionPixelSize(R.dimen.dragViewOffsetX); 2775 y += getResources().getDimensionPixelSize(R.dimen.dragViewOffsetY); 2776 2777 // These represent the visual top and left of drag view if a dragRect was provided. 2778 // If a dragRect was not provided, then they correspond to the actual view left and 2779 // top, as the dragRect is in that case taken to be the entire dragView. 2780 // R.dimen.dragViewOffsetY. 2781 int left = x - xOffset; 2782 int top = y - yOffset; 2783 2784 // In order to find the visual center, we shift by half the dragRect 2785 res[0] = left + dragView.getDragRegion().width() / 2; 2786 res[1] = top + dragView.getDragRegion().height() / 2; 2787 2788 return res; 2789 } 2790 2791 public void onDragOver(DragObject d) { 2792 // Skip drag over events while we are dragging over side pages 2793 if (mInScrollArea) return; 2794 if (mIsSwitchingState) return; 2795 2796 Rect r = new Rect(); 2797 CellLayout layout = null; 2798 ItemInfo item = (ItemInfo) d.dragInfo; 2799 2800 // Ensure that we have proper spans for the item that we are dropping 2801 if (item.spanX < 0 || item.spanY < 0) throw new RuntimeException("Improper spans found"); 2802 mDragViewVisualCenter = getDragViewVisualCenter(d.x, d.y, d.xOffset, d.yOffset, 2803 d.dragView, mDragViewVisualCenter); 2804 2805 // Identify whether we have dragged over a side page 2806 if (isSmall()) { 2807 if (mLauncher.getHotseat() != null) { 2808 mLauncher.getHotseat().getHitRect(r); 2809 if (r.contains(d.x, d.y)) { 2810 layout = mLauncher.getHotseat().getLayout(); 2811 } 2812 } 2813 if (layout == null) { 2814 layout = findMatchingPageForDragOver(d.dragView, mDragViewVisualCenter[0], 2815 mDragViewVisualCenter[1], true); 2816 } 2817 if (layout != mDragTargetLayout) { 2818 // Cancel all intermediate folder states 2819 cleanupFolderCreation(d); 2820 2821 if (mDragTargetLayout != null) { 2822 mDragTargetLayout.setIsDragOverlapping(false); 2823 mDragTargetLayout.onDragExit(); 2824 } 2825 mDragTargetLayout = layout; 2826 if (mDragTargetLayout != null) { 2827 mDragTargetLayout.setIsDragOverlapping(true); 2828 mDragTargetLayout.onDragEnter(); 2829 } else { 2830 mLastDragOverView = null; 2831 } 2832 2833 boolean isInSpringLoadedMode = (mState == State.SPRING_LOADED); 2834 if (isInSpringLoadedMode) { 2835 if (mLauncher.isHotseatLayout(layout)) { 2836 mSpringLoadedDragController.cancel(); 2837 } else { 2838 mSpringLoadedDragController.setAlarm(mDragTargetLayout); 2839 } 2840 } 2841 } 2842 } else { 2843 // Test to see if we are over the hotseat otherwise just use the current page 2844 if (mLauncher.getHotseat() != null) { 2845 mLauncher.getHotseat().getHitRect(r); 2846 if (r.contains(d.x, d.y)) { 2847 layout = mLauncher.getHotseat().getLayout(); 2848 } 2849 } 2850 if (layout == null) { 2851 layout = getCurrentDropLayout(); 2852 } 2853 if (layout != mDragTargetLayout) { 2854 if (mDragTargetLayout != null) { 2855 mDragTargetLayout.setIsDragOverlapping(false); 2856 mDragTargetLayout.onDragExit(); 2857 } 2858 mDragTargetLayout = layout; 2859 mDragTargetLayout.setIsDragOverlapping(true); 2860 mDragTargetLayout.onDragEnter(); 2861 } 2862 } 2863 2864 // Handle the drag over 2865 if (mDragTargetLayout != null) { 2866 final View child = (mDragInfo == null) ? null : mDragInfo.cell; 2867 2868 // We want the point to be mapped to the dragTarget. 2869 if (mLauncher.isHotseatLayout(mDragTargetLayout)) { 2870 mapPointFromSelfToSibling(mLauncher.getHotseat(), mDragViewVisualCenter); 2871 } else { 2872 mapPointFromSelfToChild(mDragTargetLayout, mDragViewVisualCenter, null); 2873 } 2874 ItemInfo info = (ItemInfo) d.dragInfo; 2875 2876 mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], 2877 (int) mDragViewVisualCenter[1], 1, 1, mDragTargetLayout, mTargetCell); 2878 final View dragOverView = mDragTargetLayout.getChildAt(mTargetCell[0], 2879 mTargetCell[1]); 2880 2881 boolean userFolderPending = willCreateUserFolder(info, mDragTargetLayout, 2882 mTargetCell, false); 2883 boolean isOverFolder = dragOverView instanceof FolderIcon; 2884 if (dragOverView != mLastDragOverView) { 2885 cancelFolderCreation(); 2886 if (mLastDragOverView != null && mLastDragOverView instanceof FolderIcon) { 2887 ((FolderIcon) mLastDragOverView).onDragExit(d.dragInfo); 2888 } 2889 } 2890 2891 if (userFolderPending && dragOverView != mLastDragOverView) { 2892 mFolderCreationAlarm.setOnAlarmListener(new 2893 FolderCreationAlarmListener(mDragTargetLayout, mTargetCell[0], mTargetCell[1])); 2894 mFolderCreationAlarm.setAlarm(FOLDER_CREATION_TIMEOUT); 2895 } 2896 2897 if (dragOverView != mLastDragOverView && isOverFolder) { 2898 ((FolderIcon) dragOverView).onDragEnter(d.dragInfo); 2899 if (mDragTargetLayout != null) { 2900 mDragTargetLayout.clearDragOutlines(); 2901 } 2902 } 2903 mLastDragOverView = dragOverView; 2904 2905 if (!mCreateUserFolderOnDrop && !isOverFolder) { 2906 mDragTargetLayout.visualizeDropLocation(child, mDragOutline, 2907 (int) mDragViewVisualCenter[0], (int) mDragViewVisualCenter[1], 2908 item.spanX, item.spanY); 2909 } 2910 } 2911 } 2912 2913 private void cleanupFolderCreation(DragObject d) { 2914 if (mDragFolderRingAnimator != null && mCreateUserFolderOnDrop) { 2915 mDragFolderRingAnimator.animateToNaturalState(); 2916 } 2917 if (mLastDragOverView != null && mLastDragOverView instanceof FolderIcon) { 2918 if (d != null) { 2919 ((FolderIcon) mLastDragOverView).onDragExit(d.dragInfo); 2920 } 2921 } 2922 mFolderCreationAlarm.cancelAlarm(); 2923 } 2924 2925 private void cancelFolderCreation() { 2926 if (mDragFolderRingAnimator != null && mCreateUserFolderOnDrop) { 2927 mDragFolderRingAnimator.animateToNaturalState(); 2928 } 2929 mCreateUserFolderOnDrop = false; 2930 mFolderCreationAlarm.cancelAlarm(); 2931 } 2932 2933 class FolderCreationAlarmListener implements OnAlarmListener { 2934 CellLayout layout; 2935 int cellX; 2936 int cellY; 2937 2938 public FolderCreationAlarmListener(CellLayout layout, int cellX, int cellY) { 2939 this.layout = layout; 2940 this.cellX = cellX; 2941 this.cellY = cellY; 2942 } 2943 2944 public void onAlarm(Alarm alarm) { 2945 if (mDragFolderRingAnimator == null) { 2946 mDragFolderRingAnimator = new FolderRingAnimator(mLauncher, null); 2947 } 2948 mDragFolderRingAnimator.setCell(cellX, cellY); 2949 mDragFolderRingAnimator.setCellLayout(layout); 2950 mDragFolderRingAnimator.animateToAcceptState(); 2951 layout.showFolderAccept(mDragFolderRingAnimator); 2952 layout.clearDragOutlines(); 2953 mCreateUserFolderOnDrop = true; 2954 } 2955 } 2956 2957 @Override 2958 public void getHitRect(Rect outRect) { 2959 // We want the workspace to have the whole area of the display (it will find the correct 2960 // cell layout to drop to in the existing drag/drop logic. 2961 final Display d = mLauncher.getWindowManager().getDefaultDisplay(); 2962 outRect.set(0, 0, d.getWidth(), d.getHeight()); 2963 } 2964 2965 /** 2966 * Add the item specified by dragInfo to the given layout. 2967 * @return true if successful 2968 */ 2969 public boolean addExternalItemToScreen(ItemInfo dragInfo, CellLayout layout) { 2970 if (layout.findCellForSpan(mTempEstimate, dragInfo.spanX, dragInfo.spanY)) { 2971 onDropExternal(dragInfo.dropPos, (ItemInfo) dragInfo, (CellLayout) layout, false); 2972 return true; 2973 } 2974 mLauncher.showOutOfSpaceMessage(); 2975 return false; 2976 } 2977 2978 private void onDropExternal(int[] touchXY, Object dragInfo, 2979 CellLayout cellLayout, boolean insertAtFirst) { 2980 onDropExternal(touchXY, dragInfo, cellLayout, insertAtFirst, null); 2981 } 2982 2983 /** 2984 * Drop an item that didn't originate on one of the workspace screens. 2985 * It may have come from Launcher (e.g. from all apps or customize), or it may have 2986 * come from another app altogether. 2987 * 2988 * NOTE: This can also be called when we are outside of a drag event, when we want 2989 * to add an item to one of the workspace screens. 2990 */ 2991 private void onDropExternal(final int[] touchXY, final Object dragInfo, 2992 final CellLayout cellLayout, boolean insertAtFirst, DragObject d) { 2993 final Runnable exitSpringLoadedRunnable = new Runnable() { 2994 @Override 2995 public void run() { 2996 mLauncher.exitSpringLoadedDragModeDelayed(true, false); 2997 } 2998 }; 2999 3000 ItemInfo info = (ItemInfo) dragInfo; 3001 int spanX = info.spanX; 3002 int spanY = info.spanY; 3003 if (mDragInfo != null) { 3004 spanX = mDragInfo.spanX; 3005 spanY = mDragInfo.spanY; 3006 } 3007 3008 final long container = mLauncher.isHotseatLayout(cellLayout) ? 3009 LauncherSettings.Favorites.CONTAINER_HOTSEAT : 3010 LauncherSettings.Favorites.CONTAINER_DESKTOP; 3011 final int screen = indexOfChild(cellLayout); 3012 if (!mLauncher.isHotseatLayout(cellLayout) && screen != mCurrentPage 3013 && mState != State.SPRING_LOADED) { 3014 snapToPage(screen); 3015 } 3016 3017 if (info instanceof PendingAddItemInfo) { 3018 final PendingAddItemInfo pendingInfo = (PendingAddItemInfo) dragInfo; 3019 3020 mTargetCell = findNearestVacantArea(touchXY[0], touchXY[1], spanX, spanY, null, 3021 cellLayout, mTargetCell); 3022 Runnable onAnimationCompleteRunnable = new Runnable() { 3023 @Override 3024 public void run() { 3025 // When dragging and dropping from customization tray, we deal with creating 3026 // widgets/shortcuts/folders in a slightly different way 3027 switch (pendingInfo.itemType) { 3028 case LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET: 3029 mLauncher.addAppWidgetFromDrop((PendingAddWidgetInfo) pendingInfo, 3030 container, screen, mTargetCell, null); 3031 break; 3032 case LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT: 3033 mLauncher.processShortcutFromDrop(pendingInfo.componentName, 3034 container, screen, mTargetCell, null); 3035 break; 3036 default: 3037 throw new IllegalStateException("Unknown item type: " + 3038 pendingInfo.itemType); 3039 } 3040 cellLayout.onDragExit(); 3041 } 3042 }; 3043 3044 // Now we animate the dragView, (ie. the widget or shortcut preview) into its final 3045 // location and size on the home screen. 3046 int loc[] = new int[2]; 3047 cellLayout.cellToPoint(mTargetCell[0], mTargetCell[1], loc); 3048 3049 RectF r = new RectF(); 3050 cellLayout.cellToRect(mTargetCell[0], mTargetCell[1], spanX, spanY, r); 3051 setFinalTransitionTransform(cellLayout); 3052 float cellLayoutScale = 3053 mLauncher.getDragLayer().getDescendantCoordRelativeToSelf(cellLayout, loc); 3054 resetTransitionTransform(cellLayout); 3055 3056 float dragViewScale = r.width() / d.dragView.getMeasuredWidth(); 3057 // The animation will scale the dragView about its center, so we need to center about 3058 // the final location. 3059 loc[0] -= (d.dragView.getMeasuredWidth() - cellLayoutScale * r.width()) / 2; 3060 loc[1] -= (d.dragView.getMeasuredHeight() - cellLayoutScale * r.height()) / 2; 3061 3062 mLauncher.getDragLayer().animateViewIntoPosition(d.dragView, loc, 3063 dragViewScale * cellLayoutScale, onAnimationCompleteRunnable); 3064 } else { 3065 // This is for other drag/drop cases, like dragging from All Apps 3066 View view = null; 3067 3068 switch (info.itemType) { 3069 case LauncherSettings.Favorites.ITEM_TYPE_APPLICATION: 3070 case LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT: 3071 if (info.container == NO_ID && info instanceof ApplicationInfo) { 3072 // Came from all apps -- make a copy 3073 info = new ShortcutInfo((ApplicationInfo) info); 3074 } 3075 view = mLauncher.createShortcut(R.layout.application, cellLayout, 3076 (ShortcutInfo) info); 3077 break; 3078 case LauncherSettings.Favorites.ITEM_TYPE_FOLDER: 3079 view = FolderIcon.fromXml(R.layout.folder_icon, mLauncher, cellLayout, 3080 (FolderInfo) info, mIconCache); 3081 break; 3082 default: 3083 throw new IllegalStateException("Unknown item type: " + info.itemType); 3084 } 3085 3086 // First we find the cell nearest to point at which the item is 3087 // dropped, without any consideration to whether there is an item there. 3088 if (touchXY != null) { 3089 mTargetCell = findNearestArea((int) touchXY[0], (int) touchXY[1], spanX, spanY, 3090 cellLayout, mTargetCell); 3091 d.postAnimationRunnable = exitSpringLoadedRunnable; 3092 if (createUserFolderIfNecessary(view, container, cellLayout, mTargetCell, true, 3093 d.dragView, d.postAnimationRunnable)) { 3094 return; 3095 } 3096 if (addToExistingFolderIfNecessary(view, cellLayout, mTargetCell, d, true)) { 3097 return; 3098 } 3099 } 3100 3101 if (touchXY != null) { 3102 // when dragging and dropping, just find the closest free spot 3103 mTargetCell = findNearestVacantArea(touchXY[0], touchXY[1], 1, 1, null, 3104 cellLayout, mTargetCell); 3105 } else { 3106 cellLayout.findCellForSpan(mTargetCell, 1, 1); 3107 } 3108 addInScreen(view, container, screen, mTargetCell[0], mTargetCell[1], info.spanX, 3109 info.spanY, insertAtFirst); 3110 cellLayout.onDropChild(view); 3111 cellLayout.animateDrop(); 3112 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) view.getLayoutParams(); 3113 cellLayout.getChildrenLayout().measureChild(view); 3114 3115 LauncherModel.addOrMoveItemInDatabase(mLauncher, info, container, screen, 3116 lp.cellX, lp.cellY); 3117 3118 if (d.dragView != null) { 3119 // We wrap the animation call in the temporary set and reset of the current 3120 // cellLayout to its final transform -- this means we animate the drag view to 3121 // the correct final location. 3122 setFinalTransitionTransform(cellLayout); 3123 mLauncher.getDragLayer().animateViewIntoPosition(d.dragView, view, 3124 exitSpringLoadedRunnable); 3125 resetTransitionTransform(cellLayout); 3126 } 3127 } 3128 } 3129 3130 public void setFinalTransitionTransform(CellLayout layout) { 3131 if (isSwitchingState()) { 3132 int index = indexOfChild(layout); 3133 mCurrentScaleX = layout.getScaleX(); 3134 mCurrentScaleY = layout.getScaleY(); 3135 mCurrentTranslationX = layout.getTranslationX(); 3136 mCurrentTranslationY = layout.getTranslationY(); 3137 mCurrentRotationY = layout.getRotationY(); 3138 layout.setScaleX(mNewScaleXs[index]); 3139 layout.setScaleY(mNewScaleYs[index]); 3140 layout.setTranslationX(mNewTranslationXs[index]); 3141 layout.setTranslationY(mNewTranslationYs[index]); 3142 layout.setRotationY(mNewRotationYs[index]); 3143 } 3144 } 3145 public void resetTransitionTransform(CellLayout layout) { 3146 if (isSwitchingState()) { 3147 mCurrentScaleX = layout.getScaleX(); 3148 mCurrentScaleY = layout.getScaleY(); 3149 mCurrentTranslationX = layout.getTranslationX(); 3150 mCurrentTranslationY = layout.getTranslationY(); 3151 mCurrentRotationY = layout.getRotationY(); 3152 layout.setScaleX(mCurrentScaleX); 3153 layout.setScaleY(mCurrentScaleY); 3154 layout.setTranslationX(mCurrentTranslationX); 3155 layout.setTranslationY(mCurrentTranslationY); 3156 layout.setRotationY(mCurrentRotationY); 3157 } 3158 } 3159 3160 /** 3161 * Return the current {@link CellLayout}, correctly picking the destination 3162 * screen while a scroll is in progress. 3163 */ 3164 public CellLayout getCurrentDropLayout() { 3165 return (CellLayout) getChildAt(mNextPage == INVALID_PAGE ? mCurrentPage : mNextPage); 3166 } 3167 3168 /** 3169 * Return the current CellInfo describing our current drag; this method exists 3170 * so that Launcher can sync this object with the correct info when the activity is created/ 3171 * destroyed 3172 * 3173 */ 3174 public CellLayout.CellInfo getDragInfo() { 3175 return mDragInfo; 3176 } 3177 3178 /** 3179 * Calculate the nearest cell where the given object would be dropped. 3180 * 3181 * pixelX and pixelY should be in the coordinate system of layout 3182 */ 3183 private int[] findNearestVacantArea(int pixelX, int pixelY, 3184 int spanX, int spanY, View ignoreView, CellLayout layout, int[] recycle) { 3185 return layout.findNearestVacantArea( 3186 pixelX, pixelY, spanX, spanY, ignoreView, recycle); 3187 } 3188 3189 /** 3190 * Calculate the nearest cell where the given object would be dropped. 3191 * 3192 * pixelX and pixelY should be in the coordinate system of layout 3193 */ 3194 private int[] findNearestArea(int pixelX, int pixelY, 3195 int spanX, int spanY, CellLayout layout, int[] recycle) { 3196 return layout.findNearestArea( 3197 pixelX, pixelY, spanX, spanY, recycle); 3198 } 3199 3200 void setup(Launcher launcher, DragController dragController) { 3201 mLauncher = launcher; 3202 mSpringLoadedDragController = new SpringLoadedDragController(mLauncher); 3203 mDragController = dragController; 3204 3205 // hardware layers on children are enabled on startup, but should be disabled until 3206 // needed 3207 updateChildrenLayersEnabled(); 3208 setWallpaperDimension(); 3209 } 3210 3211 /** 3212 * Called at the end of a drag which originated on the workspace. 3213 */ 3214 public void onDropCompleted(View target, DragObject d, boolean success) { 3215 if (success) { 3216 if (target != this) { 3217 if (mDragInfo != null) { 3218 getParentCellLayoutForView(mDragInfo.cell).removeView(mDragInfo.cell); 3219 if (mDragInfo.cell instanceof DropTarget) { 3220 mDragController.removeDropTarget((DropTarget) mDragInfo.cell); 3221 } 3222 } 3223 } 3224 } else if (mDragInfo != null) { 3225 // NOTE: When 'success' is true, onDragExit is called by the DragController before 3226 // calling onDropCompleted(). We call it ourselves here, but maybe this should be 3227 // moved into DragController.cancelDrag(). 3228 doDragExit(null); 3229 CellLayout cellLayout; 3230 if (mLauncher.isHotseatLayout(target)) { 3231 cellLayout = mLauncher.getHotseat().getLayout(); 3232 } else { 3233 cellLayout = (CellLayout) getChildAt(mDragInfo.screen); 3234 } 3235 cellLayout.onDropChild(mDragInfo.cell); 3236 } 3237 mDragOutline = null; 3238 mDragInfo = null; 3239 } 3240 3241 public boolean isDropEnabled() { 3242 return true; 3243 } 3244 3245 @Override 3246 protected void onRestoreInstanceState(Parcelable state) { 3247 super.onRestoreInstanceState(state); 3248 Launcher.setScreen(mCurrentPage); 3249 } 3250 3251 @Override 3252 public void scrollLeft() { 3253 if (!isSmall() && !mIsSwitchingState) { 3254 super.scrollLeft(); 3255 } 3256 Folder openFolder = getOpenFolder(); 3257 if (openFolder != null) { 3258 openFolder.completeDragExit(); 3259 } 3260 } 3261 3262 @Override 3263 public void scrollRight() { 3264 if (!isSmall() && !mIsSwitchingState) { 3265 super.scrollRight(); 3266 } 3267 Folder openFolder = getOpenFolder(); 3268 if (openFolder != null) { 3269 openFolder.completeDragExit(); 3270 } 3271 } 3272 3273 @Override 3274 public void onEnterScrollArea(int x, int y, int direction) { 3275 // Ignore the scroll area if we are dragging over the hot seat 3276 if (mLauncher.getHotseat() != null) { 3277 Rect r = new Rect(); 3278 mLauncher.getHotseat().getHitRect(r); 3279 if (r.contains(x, y)) { 3280 return; 3281 } 3282 } 3283 3284 if (!isSmall() && !mIsSwitchingState) { 3285 mInScrollArea = true; 3286 3287 final int page = mCurrentPage + (direction == DragController.SCROLL_LEFT ? -1 : 1); 3288 final CellLayout layout = (CellLayout) getChildAt(page); 3289 cancelFolderCreation(); 3290 3291 if (layout != null) { 3292 // Exit the current layout and mark the overlapping layout 3293 if (mDragTargetLayout != null) { 3294 mDragTargetLayout.setIsDragOverlapping(false); 3295 mDragTargetLayout.onDragExit(); 3296 } 3297 mDragTargetLayout = layout; 3298 mDragTargetLayout.setIsDragOverlapping(true); 3299 3300 // Workspace is responsible for drawing the edge glow on adjacent pages, 3301 // so we need to redraw the workspace when this may have changed. 3302 invalidate(); 3303 } 3304 } 3305 } 3306 3307 @Override 3308 public void onExitScrollArea() { 3309 if (mInScrollArea) { 3310 if (mDragTargetLayout != null) { 3311 // Unmark the overlapping layout and re-enter the current layout 3312 mDragTargetLayout.setIsDragOverlapping(false); 3313 mDragTargetLayout = getCurrentDropLayout(); 3314 mDragTargetLayout.onDragEnter(); 3315 3316 // Workspace is responsible for drawing the edge glow on adjacent pages, 3317 // so we need to redraw the workspace when this may have changed. 3318 invalidate(); 3319 } 3320 mInScrollArea = false; 3321 } 3322 } 3323 3324 private void onResetScrollArea() { 3325 if (mDragTargetLayout != null) { 3326 // Unmark the overlapping layout 3327 mDragTargetLayout.setIsDragOverlapping(false); 3328 3329 // Workspace is responsible for drawing the edge glow on adjacent pages, 3330 // so we need to redraw the workspace when this may have changed. 3331 invalidate(); 3332 } 3333 mInScrollArea = false; 3334 } 3335 3336 /** 3337 * Returns a specific CellLayout 3338 */ 3339 CellLayout getParentCellLayoutForView(View v) { 3340 ArrayList<CellLayout> layouts = getWorkspaceAndHotseatCellLayouts(); 3341 for (CellLayout layout : layouts) { 3342 if (layout.getChildrenLayout().indexOfChild(v) > -1) { 3343 return layout; 3344 } 3345 } 3346 return null; 3347 } 3348 3349 /** 3350 * Returns a list of all the CellLayouts in the workspace. 3351 */ 3352 ArrayList<CellLayout> getWorkspaceAndHotseatCellLayouts() { 3353 ArrayList<CellLayout> layouts = new ArrayList<CellLayout>(); 3354 int screenCount = getChildCount(); 3355 for (int screen = 0; screen < screenCount; screen++) { 3356 layouts.add(((CellLayout) getChildAt(screen))); 3357 } 3358 if (mLauncher.getHotseat() != null) { 3359 layouts.add(mLauncher.getHotseat().getLayout()); 3360 } 3361 return layouts; 3362 } 3363 3364 /** 3365 * We should only use this to search for specific children. Do not use this method to modify 3366 * CellLayoutChildren directly. 3367 */ 3368 ArrayList<CellLayoutChildren> getWorkspaceAndHotseatCellLayoutChildren() { 3369 ArrayList<CellLayoutChildren> childrenLayouts = new ArrayList<CellLayoutChildren>(); 3370 int screenCount = getChildCount(); 3371 for (int screen = 0; screen < screenCount; screen++) { 3372 childrenLayouts.add(((CellLayout) getChildAt(screen)).getChildrenLayout()); 3373 } 3374 if (mLauncher.getHotseat() != null) { 3375 childrenLayouts.add(mLauncher.getHotseat().getLayout().getChildrenLayout()); 3376 } 3377 return childrenLayouts; 3378 } 3379 3380 public Folder getFolderForTag(Object tag) { 3381 ArrayList<CellLayoutChildren> childrenLayouts = getWorkspaceAndHotseatCellLayoutChildren(); 3382 for (CellLayoutChildren layout: childrenLayouts) { 3383 int count = layout.getChildCount(); 3384 for (int i = 0; i < count; i++) { 3385 View child = layout.getChildAt(i); 3386 if (child instanceof Folder) { 3387 Folder f = (Folder) child; 3388 if (f.getInfo() == tag && f.getInfo().opened) { 3389 return f; 3390 } 3391 } 3392 } 3393 } 3394 return null; 3395 } 3396 3397 public View getViewForTag(Object tag) { 3398 ArrayList<CellLayoutChildren> childrenLayouts = getWorkspaceAndHotseatCellLayoutChildren(); 3399 for (CellLayoutChildren layout: childrenLayouts) { 3400 int count = layout.getChildCount(); 3401 for (int i = 0; i < count; i++) { 3402 View child = layout.getChildAt(i); 3403 if (child.getTag() == tag) { 3404 return child; 3405 } 3406 } 3407 } 3408 return null; 3409 } 3410 3411 void clearDropTargets() { 3412 ArrayList<CellLayoutChildren> childrenLayouts = getWorkspaceAndHotseatCellLayoutChildren(); 3413 for (CellLayoutChildren layout: childrenLayouts) { 3414 int childCount = layout.getChildCount(); 3415 for (int j = 0; j < childCount; j++) { 3416 View v = layout.getChildAt(j); 3417 if (v instanceof DropTarget) { 3418 mDragController.removeDropTarget((DropTarget) v); 3419 } 3420 } 3421 } 3422 } 3423 3424 void removeItems(final ArrayList<ApplicationInfo> apps) { 3425 final AppWidgetManager widgets = AppWidgetManager.getInstance(getContext()); 3426 3427 final HashSet<String> packageNames = new HashSet<String>(); 3428 final int appCount = apps.size(); 3429 for (int i = 0; i < appCount; i++) { 3430 packageNames.add(apps.get(i).componentName.getPackageName()); 3431 } 3432 3433 ArrayList<CellLayout> cellLayouts = getWorkspaceAndHotseatCellLayouts(); 3434 for (final CellLayout layoutParent: cellLayouts) { 3435 final ViewGroup layout = layoutParent.getChildrenLayout(); 3436 3437 // Avoid ANRs by treating each screen separately 3438 post(new Runnable() { 3439 public void run() { 3440 final ArrayList<View> childrenToRemove = new ArrayList<View>(); 3441 childrenToRemove.clear(); 3442 3443 int childCount = layout.getChildCount(); 3444 for (int j = 0; j < childCount; j++) { 3445 final View view = layout.getChildAt(j); 3446 Object tag = view.getTag(); 3447 3448 if (tag instanceof ShortcutInfo) { 3449 final ShortcutInfo info = (ShortcutInfo) tag; 3450 final Intent intent = info.intent; 3451 final ComponentName name = intent.getComponent(); 3452 3453 if (Intent.ACTION_MAIN.equals(intent.getAction()) && name != null) { 3454 for (String packageName: packageNames) { 3455 if (packageName.equals(name.getPackageName())) { 3456 LauncherModel.deleteItemFromDatabase(mLauncher, info); 3457 childrenToRemove.add(view); 3458 } 3459 } 3460 } 3461 } else if (tag instanceof FolderInfo) { 3462 final FolderInfo info = (FolderInfo) tag; 3463 final ArrayList<ShortcutInfo> contents = info.contents; 3464 final int contentsCount = contents.size(); 3465 final ArrayList<ShortcutInfo> appsToRemoveFromFolder = 3466 new ArrayList<ShortcutInfo>(); 3467 3468 for (int k = 0; k < contentsCount; k++) { 3469 final ShortcutInfo appInfo = contents.get(k); 3470 final Intent intent = appInfo.intent; 3471 final ComponentName name = intent.getComponent(); 3472 3473 if (Intent.ACTION_MAIN.equals(intent.getAction()) && name != null) { 3474 for (String packageName: packageNames) { 3475 if (packageName.equals(name.getPackageName())) { 3476 appsToRemoveFromFolder.add(appInfo); 3477 } 3478 } 3479 } 3480 } 3481 for (ShortcutInfo item: appsToRemoveFromFolder) { 3482 info.remove(item); 3483 LauncherModel.deleteItemFromDatabase(mLauncher, item); 3484 } 3485 } else if (tag instanceof LauncherAppWidgetInfo) { 3486 final LauncherAppWidgetInfo info = (LauncherAppWidgetInfo) tag; 3487 final AppWidgetProviderInfo provider = 3488 widgets.getAppWidgetInfo(info.appWidgetId); 3489 if (provider != null) { 3490 for (String packageName: packageNames) { 3491 if (packageName.equals(provider.provider.getPackageName())) { 3492 LauncherModel.deleteItemFromDatabase(mLauncher, info); 3493 childrenToRemove.add(view); 3494 } 3495 } 3496 } 3497 } 3498 } 3499 3500 childCount = childrenToRemove.size(); 3501 for (int j = 0; j < childCount; j++) { 3502 View child = childrenToRemove.get(j); 3503 // Note: We can not remove the view directly from CellLayoutChildren as this 3504 // does not re-mark the spaces as unoccupied. 3505 layoutParent.removeViewInLayout(child); 3506 if (child instanceof DropTarget) { 3507 mDragController.removeDropTarget((DropTarget)child); 3508 } 3509 } 3510 3511 if (childCount > 0) { 3512 layout.requestLayout(); 3513 layout.invalidate(); 3514 } 3515 } 3516 }); 3517 } 3518 } 3519 3520 void updateShortcuts(ArrayList<ApplicationInfo> apps) { 3521 ArrayList<CellLayoutChildren> childrenLayouts = getWorkspaceAndHotseatCellLayoutChildren(); 3522 for (CellLayoutChildren layout: childrenLayouts) { 3523 int childCount = layout.getChildCount(); 3524 for (int j = 0; j < childCount; j++) { 3525 final View view = layout.getChildAt(j); 3526 Object tag = view.getTag(); 3527 if (tag instanceof ShortcutInfo) { 3528 ShortcutInfo info = (ShortcutInfo)tag; 3529 // We need to check for ACTION_MAIN otherwise getComponent() might 3530 // return null for some shortcuts (for instance, for shortcuts to 3531 // web pages.) 3532 final Intent intent = info.intent; 3533 final ComponentName name = intent.getComponent(); 3534 if (info.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPLICATION && 3535 Intent.ACTION_MAIN.equals(intent.getAction()) && name != null) { 3536 final int appCount = apps.size(); 3537 for (int k = 0; k < appCount; k++) { 3538 ApplicationInfo app = apps.get(k); 3539 if (app.componentName.equals(name)) { 3540 info.setIcon(mIconCache.getIcon(info.intent)); 3541 ((TextView)view).setCompoundDrawablesWithIntrinsicBounds(null, 3542 new FastBitmapDrawable(info.getIcon(mIconCache)), 3543 null, null); 3544 } 3545 } 3546 } 3547 } 3548 } 3549 } 3550 } 3551 3552 void moveToDefaultScreen(boolean animate) { 3553 if (!isSmall()) { 3554 if (animate) { 3555 snapToPage(mDefaultPage); 3556 } else { 3557 setCurrentPage(mDefaultPage); 3558 } 3559 } 3560 getChildAt(mDefaultPage).requestFocus(); 3561 } 3562 3563 @Override 3564 public void syncPages() { 3565 } 3566 3567 @Override 3568 public void syncPageItems(int page) { 3569 } 3570 3571 @Override 3572 protected String getCurrentPageDescription() { 3573 int page = (mNextPage != INVALID_PAGE) ? mNextPage : mCurrentPage; 3574 return String.format(mContext.getString(R.string.workspace_scroll_format), 3575 page + 1, getChildCount()); 3576 } 3577 3578 public void getLocationInDragLayer(int[] loc) { 3579 mLauncher.getDragLayer().getLocationInDragLayer(this, loc); 3580 } 3581 3582 /** 3583 * Return true because we want the scrolling indicator to stretch to fit the space. 3584 */ 3585 protected boolean hasElasticScrollIndicator() { 3586 return true; 3587 } 3588 3589 void showDockDivider(boolean immediately) { 3590 final ViewGroup parent = (ViewGroup) getParent(); 3591 final View qsbDivider = (ImageView) (parent.findViewById(R.id.qsb_divider)); 3592 final View dockDivider = (ImageView) (parent.findViewById(R.id.dock_divider)); 3593 if (qsbDivider != null && dockDivider != null) { 3594 qsbDivider.setVisibility(View.VISIBLE); 3595 dockDivider.setVisibility(View.VISIBLE); 3596 if (mDividerAnimator != null) { 3597 mDividerAnimator.cancel(); 3598 mDividerAnimator = null; 3599 } 3600 if (immediately) { 3601 qsbDivider.setAlpha(1f); 3602 dockDivider.setAlpha(1f); 3603 } else { 3604 mDividerAnimator = new AnimatorSet(); 3605 mDividerAnimator.playTogether(ObjectAnimator.ofFloat(qsbDivider, "alpha", 1f), 3606 ObjectAnimator.ofFloat(dockDivider, "alpha", 1f)); 3607 mDividerAnimator.setDuration(sScrollIndicatorFadeInDuration); 3608 mDividerAnimator.start(); 3609 } 3610 } 3611 } 3612 3613 void hideDockDivider(boolean immediately) { 3614 final ViewGroup parent = (ViewGroup) getParent(); 3615 final View qsbDivider = (ImageView) (parent.findViewById(R.id.qsb_divider)); 3616 final View dockDivider = (ImageView) (parent.findViewById(R.id.dock_divider)); 3617 if (qsbDivider != null && dockDivider != null) { 3618 if (mDividerAnimator != null) { 3619 mDividerAnimator.cancel(); 3620 mDividerAnimator = null; 3621 } 3622 if (immediately) { 3623 qsbDivider.setVisibility(View.GONE); 3624 dockDivider.setVisibility(View.GONE); 3625 qsbDivider.setAlpha(0f); 3626 dockDivider.setAlpha(0f); 3627 } else { 3628 mDividerAnimator = new AnimatorSet(); 3629 mDividerAnimator.playTogether(ObjectAnimator.ofFloat(qsbDivider, "alpha", 0f), 3630 ObjectAnimator.ofFloat(dockDivider, "alpha", 0f)); 3631 mDividerAnimator.addListener(new AnimatorListenerAdapter() { 3632 private boolean cancelled = false; 3633 @Override 3634 public void onAnimationCancel(android.animation.Animator animation) { 3635 cancelled = true; 3636 } 3637 @Override 3638 public void onAnimationEnd(android.animation.Animator animation) { 3639 if (!cancelled) { 3640 qsbDivider.setVisibility(View.GONE); 3641 dockDivider.setVisibility(View.GONE); 3642 } 3643 } 3644 }); 3645 mDividerAnimator.setDuration(sScrollIndicatorFadeOutDuration); 3646 mDividerAnimator.start(); 3647 } 3648 } 3649 } 3650} 3651