Workspace.java revision 8182e5bc3c2d1a0140df345599b89369d457bb4a
1/* 2 * Copyright (C) 2008 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17package com.android.launcher2; 18 19import android.animation.Animator; 20import android.animation.AnimatorListenerAdapter; 21import android.animation.AnimatorSet; 22import android.animation.ObjectAnimator; 23import android.animation.TimeInterpolator; 24import android.animation.ValueAnimator; 25import android.animation.Animator.AnimatorListener; 26import android.animation.ValueAnimator.AnimatorUpdateListener; 27import android.app.AlertDialog; 28import android.app.WallpaperManager; 29import android.appwidget.AppWidgetManager; 30import android.appwidget.AppWidgetProviderInfo; 31import android.content.ClipData; 32import android.content.ClipDescription; 33import android.content.ComponentName; 34import android.content.Context; 35import android.content.Intent; 36import android.content.pm.PackageManager; 37import android.content.res.Resources; 38import android.content.res.TypedArray; 39import android.graphics.Bitmap; 40import android.graphics.Camera; 41import android.graphics.Canvas; 42import android.graphics.Color; 43import android.graphics.Matrix; 44import android.graphics.Paint; 45import android.graphics.Rect; 46import android.graphics.RectF; 47import android.graphics.Region.Op; 48import android.graphics.drawable.Drawable; 49import android.os.IBinder; 50import android.os.Parcelable; 51import android.util.AttributeSet; 52import android.util.DisplayMetrics; 53import android.util.Log; 54import android.util.Pair; 55import android.view.Display; 56import android.view.DragEvent; 57import android.view.MotionEvent; 58import android.view.View; 59import android.view.ViewGroup; 60import android.view.animation.DecelerateInterpolator; 61import android.widget.ImageView; 62import android.widget.TextView; 63import android.widget.Toast; 64 65import com.android.launcher.R; 66import com.android.launcher2.FolderIcon.FolderRingAnimator; 67import com.android.launcher2.InstallWidgetReceiver.WidgetMimeTypeHandlerData; 68 69import java.util.ArrayList; 70import java.util.HashSet; 71import java.util.List; 72 73/** 74 * The workspace is a wide area with a wallpaper and a finite number of pages. 75 * Each page contains a number of icons, folders or widgets the user can 76 * interact with. A workspace is meant to be used with a fixed width only. 77 */ 78public class Workspace extends SmoothPagedView 79 implements DropTarget, DragSource, DragScroller, View.OnTouchListener, 80 DragController.DragListener { 81 @SuppressWarnings({"UnusedDeclaration"}) 82 private static final String TAG = "Launcher.Workspace"; 83 84 // Y rotation to apply to the workspace screens 85 private static final float WORKSPACE_ROTATION = 12.5f; 86 87 // These are extra scale factors to apply to the mini home screens 88 // so as to achieve the desired transform 89 private static final float EXTRA_SCALE_FACTOR_0 = 0.972f; 90 private static final float EXTRA_SCALE_FACTOR_1 = 1.0f; 91 private static final float EXTRA_SCALE_FACTOR_2 = 1.10f; 92 93 private static final int CHILDREN_OUTLINE_FADE_OUT_DELAY = 0; 94 private static final int CHILDREN_OUTLINE_FADE_OUT_DURATION = 375; 95 private static final int CHILDREN_OUTLINE_FADE_IN_DURATION = 100; 96 97 private static final int BACKGROUND_FADE_OUT_DURATION = 350; 98 private static final int BACKGROUND_FADE_IN_DURATION = 350; 99 100 // These animators are used to fade the children's outlines 101 private ObjectAnimator mChildrenOutlineFadeInAnimation; 102 private ObjectAnimator mChildrenOutlineFadeOutAnimation; 103 private float mChildrenOutlineAlpha = 0; 104 105 // These properties refer to the background protection gradient used for AllApps and Customize 106 private ValueAnimator mBackgroundFadeInAnimation; 107 private ValueAnimator mBackgroundFadeOutAnimation; 108 private Drawable mBackground; 109 boolean mDrawBackground = true; 110 private float mBackgroundAlpha = 0; 111 private float mOverScrollMaxBackgroundAlpha = 0.0f; 112 private int mOverScrollPageIndex = -1; 113 private AnimatorSet mDividerAnimator; 114 115 private final WallpaperManager mWallpaperManager; 116 private IBinder mWindowToken; 117 118 private int mDefaultPage; 119 120 /** 121 * CellInfo for the cell that is currently being dragged 122 */ 123 private CellLayout.CellInfo mDragInfo; 124 125 /** 126 * Target drop area calculated during last acceptDrop call. 127 */ 128 private int[] mTargetCell = new int[2]; 129 130 /** 131 * The CellLayout that is currently being dragged over 132 */ 133 private CellLayout mDragTargetLayout = null; 134 135 private Launcher mLauncher; 136 private IconCache mIconCache; 137 private DragController mDragController; 138 139 // These are temporary variables to prevent having to allocate a new object just to 140 // return an (x, y) value from helper functions. Do NOT use them to maintain other state. 141 private int[] mTempCell = new int[2]; 142 private int[] mTempEstimate = new int[2]; 143 private float[] mDragViewVisualCenter = new float[2]; 144 private float[] mTempDragCoordinates = new float[2]; 145 private float[] mTempCellLayoutCenterCoordinates = new float[2]; 146 private float[] mTempDragBottomRightCoordinates = new float[2]; 147 private Matrix mTempInverseMatrix = new Matrix(); 148 149 private SpringLoadedDragController mSpringLoadedDragController; 150 private float mSpringLoadedShrinkFactor; 151 152 private static final int DEFAULT_CELL_COUNT_X = 4; 153 private static final int DEFAULT_CELL_COUNT_Y = 4; 154 155 // State variable that indicates whether the pages are small (ie when you're 156 // in all apps or customize mode) 157 158 enum State { NORMAL, SPRING_LOADED, SMALL }; 159 private State mState; 160 private boolean mIsSwitchingState = false; 161 162 private boolean mSwitchStateAfterFirstLayout = false; 163 private State mStateAfterFirstLayout; 164 165 private AnimatorSet mAnimator; 166 private AnimatorListener mShrinkAnimationListener; 167 private AnimatorListener mUnshrinkAnimationListener; 168 // Working around the face that cancelled animations may not actually be cancelled if they 169 // are cancelled before starting 170 private boolean mShrinkAnimationEnabled; 171 private boolean mUnshrinkAnimationEnabled; 172 173 boolean mAnimatingViewIntoPlace = false; 174 boolean mIsDragOccuring = false; 175 boolean mChildrenLayersEnabled = true; 176 177 /** Is the user is dragging an item near the edge of a page? */ 178 private boolean mInScrollArea = false; 179 180 private final HolographicOutlineHelper mOutlineHelper = new HolographicOutlineHelper(); 181 private Bitmap mDragOutline = null; 182 private final Rect mTempRect = new Rect(); 183 private final int[] mTempXY = new int[2]; 184 185 // Paint used to draw external drop outline 186 private final Paint mExternalDragOutlinePaint = new Paint(); 187 188 // Camera and Matrix used to determine the final position of a neighboring CellLayout 189 private final Matrix mMatrix = new Matrix(); 190 private final Camera mCamera = new Camera(); 191 private final float mTempFloat2[] = new float[2]; 192 193 enum WallpaperVerticalOffset { TOP, MIDDLE, BOTTOM }; 194 int mWallpaperWidth; 195 int mWallpaperHeight; 196 WallpaperOffsetInterpolator mWallpaperOffset; 197 boolean mUpdateWallpaperOffsetImmediately = false; 198 boolean mSyncWallpaperOffsetWithScroll = true; 199 private Runnable mDelayedResizeRunnable; 200 201 // Variables relating to the creation of user folders by hovering shortcuts over shortcuts 202 private static final int FOLDER_CREATION_TIMEOUT = 250; 203 private final Alarm mFolderCreationAlarm = new Alarm(); 204 private FolderRingAnimator mDragFolderRingAnimator = null; 205 private View mLastDragOverView = null; 206 private boolean mCreateUserFolderOnDrop = false; 207 208 // Variables relating to touch disambiguation (scrolling workspace vs. scrolling a widget) 209 private float mXDown; 210 private float mYDown; 211 final static float START_DAMPING_TOUCH_SLOP_ANGLE = (float) Math.PI / 6; 212 final static float MAX_SWIPE_ANGLE = (float) Math.PI / 3; 213 final static float TOUCH_SLOP_DAMPING_FACTOR = 4; 214 215 // These variables are used for storing the initial and final values during workspace animations 216 private float mCurrentScaleX; 217 private float mCurrentScaleY; 218 private float mCurrentRotationY; 219 private float mCurrentTranslationX; 220 private float mCurrentTranslationY; 221 private float[] mOldTranslationXs; 222 private float[] mOldTranslationYs; 223 private float[] mOldScaleXs; 224 private float[] mOldScaleYs; 225 private float[] mOldBackgroundAlphas; 226 private float[] mOldBackgroundAlphaMultipliers; 227 private float[] mOldAlphas; 228 private float[] mOldRotationYs; 229 private float[] mNewTranslationXs; 230 private float[] mNewTranslationYs; 231 private float[] mNewScaleXs; 232 private float[] mNewScaleYs; 233 private float[] mNewBackgroundAlphas; 234 private float[] mNewBackgroundAlphaMultipliers; 235 private float[] mNewAlphas; 236 private float[] mNewRotationYs; 237 private float mTransitionProgress; 238 239 /** 240 * Used to inflate the Workspace from XML. 241 * 242 * @param context The application's context. 243 * @param attrs The attributes set containing the Workspace's customization values. 244 */ 245 public Workspace(Context context, AttributeSet attrs) { 246 this(context, attrs, 0); 247 } 248 249 /** 250 * Used to inflate the Workspace from XML. 251 * 252 * @param context The application's context. 253 * @param attrs The attributes set containing the Workspace's customization values. 254 * @param defStyle Unused. 255 */ 256 public Workspace(Context context, AttributeSet attrs, int defStyle) { 257 super(context, attrs, defStyle); 258 mContentIsRefreshable = false; 259 260 // With workspace, data is available straight from the get-go 261 setDataIsReady(); 262 263 if (!LauncherApplication.isScreenLarge()) { 264 mCenterPagesVertically = false; 265 if (!LauncherApplication.isScreenLandscape(context)) { 266 mFadeInAdjacentScreens = false; 267 } 268 } 269 270 mWallpaperManager = WallpaperManager.getInstance(context); 271 272 int cellCountX = DEFAULT_CELL_COUNT_X; 273 int cellCountY = DEFAULT_CELL_COUNT_Y; 274 275 TypedArray a = context.obtainStyledAttributes(attrs, 276 R.styleable.Workspace, defStyle, 0); 277 278 final Resources res = context.getResources(); 279 if (LauncherApplication.isScreenLarge()) { 280 // Determine number of rows/columns dynamically 281 // TODO: This code currently fails on tablets with an aspect ratio < 1.3. 282 // Around that ratio we should make cells the same size in portrait and 283 // landscape 284 TypedArray actionBarSizeTypedArray = 285 context.obtainStyledAttributes(new int[] { android.R.attr.actionBarSize }); 286 final float actionBarHeight = actionBarSizeTypedArray.getDimension(0, 0f); 287 final float systemBarHeight = res.getDimension(R.dimen.status_bar_height); 288 final float smallestScreenDim = res.getConfiguration().smallestScreenWidthDp; 289 290 cellCountX = 1; 291 while (CellLayout.widthInPortrait(res, cellCountX + 1) <= smallestScreenDim) { 292 cellCountX++; 293 } 294 295 cellCountY = 1; 296 while (actionBarHeight + CellLayout.heightInLandscape(res, cellCountY + 1) 297 <= smallestScreenDim - systemBarHeight) { 298 cellCountY++; 299 } 300 } 301 302 mSpringLoadedShrinkFactor = 303 res.getInteger(R.integer.config_workspaceSpringLoadShrinkPercentage) / 100.0f; 304 305 // if the value is manually specified, use that instead 306 cellCountX = a.getInt(R.styleable.Workspace_cellCountX, cellCountX); 307 cellCountY = a.getInt(R.styleable.Workspace_cellCountY, cellCountY); 308 mDefaultPage = a.getInt(R.styleable.Workspace_defaultScreen, 1); 309 a.recycle(); 310 311 LauncherModel.updateWorkspaceLayoutCells(cellCountX, cellCountY); 312 setHapticFeedbackEnabled(false); 313 314 initWorkspace(); 315 316 // Disable multitouch across the workspace/all apps/customize tray 317 setMotionEventSplittingEnabled(true); 318 } 319 320 public void onDragStart(DragSource source, Object info, int dragAction) { 321 mIsDragOccuring = true; 322 updateChildrenLayersEnabled(); 323 mLauncher.lockScreenOrientation(); 324 } 325 326 public void onDragEnd() { 327 mIsDragOccuring = false; 328 updateChildrenLayersEnabled(); 329 mLauncher.unlockScreenOrientation(); 330 } 331 332 /** 333 * Initializes various states for this workspace. 334 */ 335 protected void initWorkspace() { 336 Context context = getContext(); 337 mCurrentPage = mDefaultPage; 338 Launcher.setScreen(mCurrentPage); 339 LauncherApplication app = (LauncherApplication)context.getApplicationContext(); 340 mIconCache = app.getIconCache(); 341 mExternalDragOutlinePaint.setAntiAlias(true); 342 setWillNotDraw(false); 343 344 try { 345 final Resources res = getResources(); 346 mBackground = res.getDrawable(R.drawable.apps_customize_bg); 347 } catch (Resources.NotFoundException e) { 348 // In this case, we will skip drawing background protection 349 } 350 351 mUnshrinkAnimationListener = new AnimatorListenerAdapter() { 352 @Override 353 public void onAnimationStart(Animator animation) { 354 mIsSwitchingState = true; 355 } 356 357 @Override 358 public void onAnimationEnd(Animator animation) { 359 mIsSwitchingState = false; 360 mSyncWallpaperOffsetWithScroll = true; 361 mWallpaperOffset.setOverrideHorizontalCatchupConstant(false); 362 mAnimator = null; 363 updateChildrenLayersEnabled(); 364 } 365 }; 366 mShrinkAnimationListener = new AnimatorListenerAdapter() { 367 @Override 368 public void onAnimationStart(Animator animation) { 369 mIsSwitchingState = true; 370 } 371 @Override 372 public void onAnimationEnd(Animator animation) { 373 mIsSwitchingState = false; 374 mWallpaperOffset.setOverrideHorizontalCatchupConstant(false); 375 mAnimator = null; 376 } 377 }; 378 mSnapVelocity = 600; 379 mWallpaperOffset = new WallpaperOffsetInterpolator(); 380 } 381 382 @Override 383 protected int getScrollMode() { 384 return SmoothPagedView.X_LARGE_MODE; 385 } 386 387 private void onAddView(View child) { 388 if (!(child instanceof CellLayout)) { 389 throw new IllegalArgumentException("A Workspace can only have CellLayout children."); 390 } 391 CellLayout cl = ((CellLayout) child); 392 cl.setOnInterceptTouchListener(this); 393 cl.setClickable(true); 394 cl.enableHardwareLayers(); 395 } 396 397 @Override 398 public void addView(View child, int index, LayoutParams params) { 399 onAddView(child); 400 super.addView(child, index, params); 401 } 402 403 @Override 404 public void addView(View child) { 405 onAddView(child); 406 super.addView(child); 407 } 408 409 @Override 410 public void addView(View child, int index) { 411 onAddView(child); 412 super.addView(child, index); 413 } 414 415 @Override 416 public void addView(View child, int width, int height) { 417 onAddView(child); 418 super.addView(child, width, height); 419 } 420 421 @Override 422 public void addView(View child, LayoutParams params) { 423 onAddView(child); 424 super.addView(child, params); 425 } 426 427 /** 428 * @return The open folder on the current screen, or null if there is none 429 */ 430 Folder getOpenFolder() { 431 DragLayer dragLayer = mLauncher.getDragLayer(); 432 int count = dragLayer.getChildCount(); 433 for (int i = 0; i < count; i++) { 434 View child = dragLayer.getChildAt(i); 435 if (child instanceof Folder) { 436 Folder folder = (Folder) child; 437 if (folder.getInfo().opened) 438 return folder; 439 } 440 } 441 return null; 442 } 443 444 boolean isTouchActive() { 445 return mTouchState != TOUCH_STATE_REST; 446 } 447 448 /** 449 * Adds the specified child in the specified screen. The position and dimension of 450 * the child are defined by x, y, spanX and spanY. 451 * 452 * @param child The child to add in one of the workspace's screens. 453 * @param screen The screen in which to add the child. 454 * @param x The X position of the child in the screen's grid. 455 * @param y The Y position of the child in the screen's grid. 456 * @param spanX The number of cells spanned horizontally by the child. 457 * @param spanY The number of cells spanned vertically by the child. 458 */ 459 void addInScreen(View child, long container, int screen, int x, int y, int spanX, int spanY) { 460 addInScreen(child, container, screen, x, y, spanX, spanY, false); 461 } 462 463 /** 464 * Adds the specified child in the specified screen. The position and dimension of 465 * the child are defined by x, y, spanX and spanY. 466 * 467 * @param child The child to add in one of the workspace's screens. 468 * @param screen The screen in which to add the child. 469 * @param x The X position of the child in the screen's grid. 470 * @param y The Y position of the child in the screen's grid. 471 * @param spanX The number of cells spanned horizontally by the child. 472 * @param spanY The number of cells spanned vertically by the child. 473 * @param insert When true, the child is inserted at the beginning of the children list. 474 */ 475 void addInScreen(View child, long container, int screen, int x, int y, int spanX, int spanY, 476 boolean insert) { 477 if (container == LauncherSettings.Favorites.CONTAINER_DESKTOP) { 478 if (screen < 0 || screen >= getChildCount()) { 479 Log.e(TAG, "The screen must be >= 0 and < " + getChildCount() 480 + " (was " + screen + "); skipping child"); 481 return; 482 } 483 } 484 485 final CellLayout layout; 486 if (container == LauncherSettings.Favorites.CONTAINER_HOTSEAT) { 487 layout = mLauncher.getHotseat().getLayout(); 488 child.setOnKeyListener(null); 489 490 if (screen < 0) { 491 screen = mLauncher.getHotseat().getOrderInHotseat(x, y); 492 } else { 493 // Note: We do this to ensure that the hotseat is always laid out in the orientation 494 // of the hotseat in order regardless of which orientation they were added 495 x = mLauncher.getHotseat().getCellXFromOrder(screen); 496 y = mLauncher.getHotseat().getCellYFromOrder(screen); 497 } 498 } else { 499 layout = (CellLayout) getChildAt(screen); 500 child.setOnKeyListener(new BubbleTextViewKeyEventListener()); 501 } 502 503 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) child.getLayoutParams(); 504 if (lp == null) { 505 lp = new CellLayout.LayoutParams(x, y, spanX, spanY); 506 } else { 507 lp.cellX = x; 508 lp.cellY = y; 509 lp.cellHSpan = spanX; 510 lp.cellVSpan = spanY; 511 } 512 513 if (spanX < 0 && spanY < 0) { 514 lp.isLockedToGrid = false; 515 } 516 517 // Get the canonical child id to uniquely represent this view in this screen 518 int childId = LauncherModel.getCellLayoutChildId(container, screen, x, y, spanX, spanY); 519 boolean markCellsAsOccupied = !(child instanceof Folder); 520 if (!layout.addViewToCellLayout(child, insert ? 0 : -1, childId, lp, markCellsAsOccupied)) { 521 // TODO: This branch occurs when the workspace is adding views 522 // outside of the defined grid 523 // maybe we should be deleting these items from the LauncherModel? 524 Log.w(TAG, "Failed to add to item at (" + lp.cellX + "," + lp.cellY + ") to CellLayout"); 525 } 526 527 if (!(child instanceof Folder)) { 528 child.setHapticFeedbackEnabled(false); 529 child.setOnLongClickListener(mLongClickListener); 530 } 531 if (child instanceof DropTarget) { 532 mDragController.addDropTarget((DropTarget) child); 533 } 534 } 535 536 /** 537 * Check if the point (x, y) hits a given page. 538 */ 539 private boolean hitsPage(int index, float x, float y) { 540 final View page = getChildAt(index); 541 if (page != null) { 542 float[] localXY = { x, y }; 543 mapPointFromSelfToChild(page, localXY); 544 return (localXY[0] >= 0 && localXY[0] < page.getWidth() 545 && localXY[1] >= 0 && localXY[1] < page.getHeight()); 546 } 547 return false; 548 } 549 550 @Override 551 protected boolean hitsPreviousPage(float x, float y) { 552 // mNextPage is set to INVALID_PAGE whenever we are stationary. 553 // Calculating "next page" this way ensures that you scroll to whatever page you tap on 554 final int current = (mNextPage == INVALID_PAGE) ? mCurrentPage : mNextPage; 555 return hitsPage(current - 1, x, y); 556 } 557 558 @Override 559 protected boolean hitsNextPage(float x, float y) { 560 // mNextPage is set to INVALID_PAGE whenever we are stationary. 561 // Calculating "next page" this way ensures that you scroll to whatever page you tap on 562 final int current = (mNextPage == INVALID_PAGE) ? mCurrentPage : mNextPage; 563 return hitsPage(current + 1, x, y); 564 } 565 566 /** 567 * Called directly from a CellLayout (not by the framework), after we've been added as a 568 * listener via setOnInterceptTouchEventListener(). This allows us to tell the CellLayout 569 * that it should intercept touch events, which is not something that is normally supported. 570 */ 571 @Override 572 public boolean onTouch(View v, MotionEvent event) { 573 return (isSmall() || mIsSwitchingState); 574 } 575 576 public boolean isSwitchingState() { 577 return mIsSwitchingState; 578 } 579 580 protected void onWindowVisibilityChanged (int visibility) { 581 mLauncher.onWindowVisibilityChanged(visibility); 582 } 583 584 @Override 585 public boolean dispatchUnhandledMove(View focused, int direction) { 586 if (isSmall() || mIsSwitchingState) { 587 // when the home screens are shrunken, shouldn't allow side-scrolling 588 return false; 589 } 590 return super.dispatchUnhandledMove(focused, direction); 591 } 592 593 @Override 594 public boolean onInterceptTouchEvent(MotionEvent ev) { 595 if (ev.getAction() == MotionEvent.ACTION_DOWN) { 596 mXDown = ev.getX(); 597 mYDown = ev.getY(); 598 } 599 600 return super.onInterceptTouchEvent(ev); 601 } 602 603 @Override 604 protected void determineScrollingStart(MotionEvent ev) { 605 if (!isSmall() && !mIsSwitchingState) { 606 float deltaX = Math.abs(ev.getX() - mXDown); 607 float deltaY = Math.abs(ev.getY() - mYDown); 608 609 if (Float.compare(deltaX, 0f) == 0) return; 610 611 float slope = deltaY / deltaX; 612 float theta = (float) Math.atan(slope); 613 614 if (deltaX > mTouchSlop || deltaY > mTouchSlop) { 615 cancelCurrentPageLongPress(); 616 } 617 618 if (theta > MAX_SWIPE_ANGLE) { 619 // Above MAX_SWIPE_ANGLE, we don't want to ever start scrolling the workspace 620 return; 621 } else if (theta > START_DAMPING_TOUCH_SLOP_ANGLE) { 622 // Above START_DAMPING_TOUCH_SLOP_ANGLE and below MAX_SWIPE_ANGLE, we want to 623 // increase the touch slop to make it harder to begin scrolling the workspace. This 624 // results in vertically scrolling widgets to more easily. The higher the angle, the 625 // more we increase touch slop. 626 theta -= START_DAMPING_TOUCH_SLOP_ANGLE; 627 float extraRatio = (float) 628 Math.sqrt((theta / (MAX_SWIPE_ANGLE - START_DAMPING_TOUCH_SLOP_ANGLE))); 629 super.determineScrollingStart(ev, 1 + TOUCH_SLOP_DAMPING_FACTOR * extraRatio); 630 } else { 631 // Below START_DAMPING_TOUCH_SLOP_ANGLE, we don't do anything special 632 super.determineScrollingStart(ev); 633 } 634 } 635 } 636 637 @Override 638 protected boolean isScrollingIndicatorEnabled() { 639 return mState != State.SPRING_LOADED; 640 } 641 642 protected void onPageBeginMoving() { 643 super.onPageBeginMoving(); 644 645 if (isHardwareAccelerated()) { 646 updateChildrenLayersEnabled(); 647 } else { 648 if (mNextPage != INVALID_PAGE) { 649 // we're snapping to a particular screen 650 enableChildrenCache(mCurrentPage, mNextPage); 651 } else { 652 // this is when user is actively dragging a particular screen, they might 653 // swipe it either left or right (but we won't advance by more than one screen) 654 enableChildrenCache(mCurrentPage - 1, mCurrentPage + 1); 655 } 656 } 657 658 // Only show page outlines as we pan if we are on large screen 659 if (LauncherApplication.isScreenLarge()) { 660 showOutlines(); 661 } 662 } 663 664 protected void onPageEndMoving() { 665 super.onPageEndMoving(); 666 667 if (isHardwareAccelerated()) { 668 updateChildrenLayersEnabled(); 669 } else { 670 clearChildrenCache(); 671 } 672 673 // Hide the outlines, as long as we're not dragging 674 if (!mDragController.dragging()) { 675 // Only hide page outlines as we pan if we are on large screen 676 if (LauncherApplication.isScreenLarge()) { 677 hideOutlines(); 678 } 679 } 680 mOverScrollMaxBackgroundAlpha = 0.0f; 681 mOverScrollPageIndex = -1; 682 683 if (mDelayedResizeRunnable != null) { 684 mDelayedResizeRunnable.run(); 685 mDelayedResizeRunnable = null; 686 } 687 } 688 689 @Override 690 protected void notifyPageSwitchListener() { 691 super.notifyPageSwitchListener(); 692 Launcher.setScreen(mCurrentPage); 693 }; 694 695 // As a ratio of screen height, the total distance we want the parallax effect to span 696 // vertically 697 private float wallpaperTravelToScreenHeightRatio(int width, int height) { 698 return 1.1f; 699 } 700 701 // As a ratio of screen height, the total distance we want the parallax effect to span 702 // horizontally 703 private float wallpaperTravelToScreenWidthRatio(int width, int height) { 704 float aspectRatio = width / (float) height; 705 706 // At an aspect ratio of 16/10, the wallpaper parallax effect should span 1.5 * screen width 707 // At an aspect ratio of 10/16, the wallpaper parallax effect should span 1.2 * screen width 708 // We will use these two data points to extrapolate how much the wallpaper parallax effect 709 // to span (ie travel) at any aspect ratio: 710 711 final float ASPECT_RATIO_LANDSCAPE = 16/10f; 712 final float ASPECT_RATIO_PORTRAIT = 10/16f; 713 final float WALLPAPER_WIDTH_TO_SCREEN_RATIO_LANDSCAPE = 1.5f; 714 final float WALLPAPER_WIDTH_TO_SCREEN_RATIO_PORTRAIT = 1.2f; 715 716 // To find out the desired width at different aspect ratios, we use the following two 717 // formulas, where the coefficient on x is the aspect ratio (width/height): 718 // (16/10)x + y = 1.5 719 // (10/16)x + y = 1.2 720 // We solve for x and y and end up with a final formula: 721 final float x = 722 (WALLPAPER_WIDTH_TO_SCREEN_RATIO_LANDSCAPE - WALLPAPER_WIDTH_TO_SCREEN_RATIO_PORTRAIT) / 723 (ASPECT_RATIO_LANDSCAPE - ASPECT_RATIO_PORTRAIT); 724 final float y = WALLPAPER_WIDTH_TO_SCREEN_RATIO_PORTRAIT - x * ASPECT_RATIO_PORTRAIT; 725 return x * aspectRatio + y; 726 } 727 728 // The range of scroll values for Workspace 729 private int getScrollRange() { 730 return getChildOffset(getChildCount() - 1) - getChildOffset(0); 731 } 732 733 protected void setWallpaperDimension() { 734 Display display = mLauncher.getWindowManager().getDefaultDisplay(); 735 DisplayMetrics displayMetrics = new DisplayMetrics(); 736 display.getRealMetrics(displayMetrics); 737 final int maxDim = Math.max(displayMetrics.widthPixels, displayMetrics.heightPixels); 738 final int minDim = Math.min(displayMetrics.widthPixels, displayMetrics.heightPixels); 739 740 // We need to ensure that there is enough extra space in the wallpaper for the intended 741 // parallax effects 742 mWallpaperWidth = (int) (maxDim * wallpaperTravelToScreenWidthRatio(maxDim, minDim)); 743 mWallpaperHeight = (int)(maxDim * wallpaperTravelToScreenHeightRatio(maxDim, minDim)); 744 new Thread("setWallpaperDimension") { 745 public void run() { 746 mWallpaperManager.suggestDesiredDimensions(mWallpaperWidth, mWallpaperHeight); 747 } 748 }.start(); 749 } 750 751 public void setVerticalWallpaperOffset(float offset) { 752 mWallpaperOffset.setFinalY(offset); 753 } 754 public float getVerticalWallpaperOffset() { 755 return mWallpaperOffset.getCurrY(); 756 } 757 public void setHorizontalWallpaperOffset(float offset) { 758 mWallpaperOffset.setFinalX(offset); 759 } 760 public float getHorizontalWallpaperOffset() { 761 return mWallpaperOffset.getCurrX(); 762 } 763 764 private float wallpaperOffsetForCurrentScroll() { 765 Display display = mLauncher.getWindowManager().getDefaultDisplay(); 766 final boolean isStaticWallpaper = (mWallpaperManager.getWallpaperInfo() == null); 767 // The wallpaper travel width is how far, from left to right, the wallpaper will move 768 // at this orientation (for example, in portrait mode we don't move all the way to the 769 // edges of the wallpaper, or otherwise the parallax effect would be too strong) 770 int wallpaperTravelWidth = (int) (display.getWidth() * 771 wallpaperTravelToScreenWidthRatio(display.getWidth(), display.getHeight())); 772 if (!isStaticWallpaper) { 773 wallpaperTravelWidth = mWallpaperWidth; 774 } 775 776 // Set wallpaper offset steps (1 / (number of screens - 1)) 777 // We have 3 vertical offset states (centered, and then top/bottom aligned 778 // for all apps/customize) 779 mWallpaperManager.setWallpaperOffsetSteps(1.0f / (getChildCount() - 1), 1.0f / (3 - 1)); 780 781 int scrollRange = getScrollRange(); 782 float scrollProgressOffset = 0; 783 784 // Account for overscroll: you only see the absolute edge of the wallpaper if 785 // you overscroll as far as you can in landscape mode. Only do this for static wallpapers 786 // because live wallpapers (and probably 3rd party wallpaper providers) rely on the offset 787 // being even intervals from 0 to 1 (eg [0, 0.25, 0.5, 0.75, 1]) 788 if (isStaticWallpaper) { 789 int overscrollOffset = (int) (maxOverScroll() * display.getWidth()); 790 scrollProgressOffset += overscrollOffset / (float) getScrollRange(); 791 scrollRange += 2 * overscrollOffset; 792 } 793 794 float scrollProgress = 795 mScrollX / (float) scrollRange + scrollProgressOffset; 796 float offsetInDips = wallpaperTravelWidth * scrollProgress + 797 (mWallpaperWidth - wallpaperTravelWidth) / 2; // center it 798 float offset = offsetInDips / (float) mWallpaperWidth; 799 return offset; 800 } 801 private void syncWallpaperOffsetWithScroll() { 802 final boolean enableWallpaperEffects = isHardwareAccelerated(); 803 if (enableWallpaperEffects) { 804 mWallpaperOffset.setFinalX(wallpaperOffsetForCurrentScroll()); 805 } 806 } 807 808 public void updateWallpaperOffsetImmediately() { 809 mUpdateWallpaperOffsetImmediately = true; 810 } 811 812 private void updateWallpaperOffsets() { 813 boolean updateNow = false; 814 boolean keepUpdating = true; 815 if (mUpdateWallpaperOffsetImmediately) { 816 updateNow = true; 817 keepUpdating = false; 818 mWallpaperOffset.jumpToFinal(); 819 mUpdateWallpaperOffsetImmediately = false; 820 } else { 821 updateNow = keepUpdating = mWallpaperOffset.computeScrollOffset(); 822 } 823 if (updateNow) { 824 if (mWindowToken != null) { 825 mWallpaperManager.setWallpaperOffsets(mWindowToken, 826 mWallpaperOffset.getCurrX(), mWallpaperOffset.getCurrY()); 827 } 828 } 829 if (keepUpdating) { 830 fastInvalidate(); 831 } 832 } 833 834 class WallpaperOffsetInterpolator { 835 float mFinalHorizontalWallpaperOffset = 0.0f; 836 float mFinalVerticalWallpaperOffset = 0.5f; 837 float mHorizontalWallpaperOffset = 0.0f; 838 float mVerticalWallpaperOffset = 0.5f; 839 long mLastWallpaperOffsetUpdateTime; 840 boolean mIsMovingFast; 841 boolean mOverrideHorizontalCatchupConstant; 842 float mHorizontalCatchupConstant = 0.35f; 843 float mVerticalCatchupConstant = 0.35f; 844 845 public WallpaperOffsetInterpolator() { 846 } 847 848 public void setOverrideHorizontalCatchupConstant(boolean override) { 849 mOverrideHorizontalCatchupConstant = override; 850 } 851 852 public void setHorizontalCatchupConstant(float f) { 853 mHorizontalCatchupConstant = f; 854 } 855 856 public void setVerticalCatchupConstant(float f) { 857 mVerticalCatchupConstant = f; 858 } 859 860 public boolean computeScrollOffset() { 861 if (Float.compare(mHorizontalWallpaperOffset, mFinalHorizontalWallpaperOffset) == 0 && 862 Float.compare(mVerticalWallpaperOffset, mFinalVerticalWallpaperOffset) == 0) { 863 mIsMovingFast = false; 864 return false; 865 } 866 Display display = mLauncher.getWindowManager().getDefaultDisplay(); 867 boolean isLandscape = display.getWidth() > display.getHeight(); 868 869 long currentTime = System.currentTimeMillis(); 870 long timeSinceLastUpdate = currentTime - mLastWallpaperOffsetUpdateTime; 871 timeSinceLastUpdate = Math.min((long) (1000/30f), timeSinceLastUpdate); 872 timeSinceLastUpdate = Math.max(1L, timeSinceLastUpdate); 873 874 float xdiff = Math.abs(mFinalHorizontalWallpaperOffset - mHorizontalWallpaperOffset); 875 if (!mIsMovingFast && xdiff > 0.07) { 876 mIsMovingFast = true; 877 } 878 879 float fractionToCatchUpIn1MsHorizontal; 880 if (mOverrideHorizontalCatchupConstant) { 881 fractionToCatchUpIn1MsHorizontal = mHorizontalCatchupConstant; 882 } else if (mIsMovingFast) { 883 fractionToCatchUpIn1MsHorizontal = isLandscape ? 0.5f : 0.75f; 884 } else { 885 // slow 886 fractionToCatchUpIn1MsHorizontal = isLandscape ? 0.27f : 0.5f; 887 } 888 float fractionToCatchUpIn1MsVertical = mVerticalCatchupConstant; 889 890 fractionToCatchUpIn1MsHorizontal /= 33f; 891 fractionToCatchUpIn1MsVertical /= 33f; 892 893 final float UPDATE_THRESHOLD = 0.00001f; 894 float hOffsetDelta = mFinalHorizontalWallpaperOffset - mHorizontalWallpaperOffset; 895 float vOffsetDelta = mFinalVerticalWallpaperOffset - mVerticalWallpaperOffset; 896 boolean jumpToFinalValue = Math.abs(hOffsetDelta) < UPDATE_THRESHOLD && 897 Math.abs(vOffsetDelta) < UPDATE_THRESHOLD; 898 if (jumpToFinalValue) { 899 mHorizontalWallpaperOffset = mFinalHorizontalWallpaperOffset; 900 mVerticalWallpaperOffset = mFinalVerticalWallpaperOffset; 901 } else { 902 float percentToCatchUpVertical = 903 Math.min(1.0f, timeSinceLastUpdate * fractionToCatchUpIn1MsVertical); 904 float percentToCatchUpHorizontal = 905 Math.min(1.0f, timeSinceLastUpdate * fractionToCatchUpIn1MsHorizontal); 906 mHorizontalWallpaperOffset += percentToCatchUpHorizontal * hOffsetDelta; 907 mVerticalWallpaperOffset += percentToCatchUpVertical * vOffsetDelta; 908 } 909 910 mLastWallpaperOffsetUpdateTime = System.currentTimeMillis(); 911 return true; 912 } 913 914 public float getCurrX() { 915 return mHorizontalWallpaperOffset; 916 } 917 918 public float getFinalX() { 919 return mFinalHorizontalWallpaperOffset; 920 } 921 922 public float getCurrY() { 923 return mVerticalWallpaperOffset; 924 } 925 926 public float getFinalY() { 927 return mFinalVerticalWallpaperOffset; 928 } 929 930 public void setFinalX(float x) { 931 mFinalHorizontalWallpaperOffset = Math.max(0f, Math.min(x, 1.0f)); 932 } 933 934 public void setFinalY(float y) { 935 mFinalVerticalWallpaperOffset = Math.max(0f, Math.min(y, 1.0f)); 936 } 937 938 public void jumpToFinal() { 939 mHorizontalWallpaperOffset = mFinalHorizontalWallpaperOffset; 940 mVerticalWallpaperOffset = mFinalVerticalWallpaperOffset; 941 } 942 } 943 944 @Override 945 public void computeScroll() { 946 super.computeScroll(); 947 if (mSyncWallpaperOffsetWithScroll) { 948 syncWallpaperOffsetWithScroll(); 949 } 950 } 951 952 void showOutlines() { 953 if (!isSmall() && !mIsSwitchingState) { 954 if (mChildrenOutlineFadeOutAnimation != null) mChildrenOutlineFadeOutAnimation.cancel(); 955 if (mChildrenOutlineFadeInAnimation != null) mChildrenOutlineFadeInAnimation.cancel(); 956 mChildrenOutlineFadeInAnimation = ObjectAnimator.ofFloat(this, "childrenOutlineAlpha", 1.0f); 957 mChildrenOutlineFadeInAnimation.setDuration(CHILDREN_OUTLINE_FADE_IN_DURATION); 958 mChildrenOutlineFadeInAnimation.start(); 959 } 960 } 961 962 void hideOutlines() { 963 if (!isSmall() && !mIsSwitchingState) { 964 if (mChildrenOutlineFadeInAnimation != null) mChildrenOutlineFadeInAnimation.cancel(); 965 if (mChildrenOutlineFadeOutAnimation != null) mChildrenOutlineFadeOutAnimation.cancel(); 966 mChildrenOutlineFadeOutAnimation = ObjectAnimator.ofFloat(this, "childrenOutlineAlpha", 0.0f); 967 mChildrenOutlineFadeOutAnimation.setDuration(CHILDREN_OUTLINE_FADE_OUT_DURATION); 968 mChildrenOutlineFadeOutAnimation.setStartDelay(CHILDREN_OUTLINE_FADE_OUT_DELAY); 969 mChildrenOutlineFadeOutAnimation.start(); 970 } 971 } 972 973 public void showOutlinesTemporarily() { 974 if (!mIsPageMoving && !isTouchActive()) { 975 snapToPage(mCurrentPage); 976 } 977 } 978 979 public void setChildrenOutlineAlpha(float alpha) { 980 mChildrenOutlineAlpha = alpha; 981 for (int i = 0; i < getChildCount(); i++) { 982 CellLayout cl = (CellLayout) getChildAt(i); 983 cl.setBackgroundAlpha(alpha); 984 } 985 } 986 987 public float getChildrenOutlineAlpha() { 988 return mChildrenOutlineAlpha; 989 } 990 991 void disableBackground() { 992 mDrawBackground = false; 993 } 994 void enableBackground() { 995 mDrawBackground = true; 996 } 997 998 private void showBackgroundGradientForAllApps(boolean animated) { 999 showBackgroundGradient(animated); 1000 } 1001 1002 private void showBackgroundGradient(boolean animated) { 1003 if (mBackground == null) return; 1004 if (mBackgroundFadeOutAnimation != null) { 1005 mBackgroundFadeOutAnimation.cancel(); 1006 mBackgroundFadeOutAnimation = null; 1007 } 1008 if (mBackgroundFadeInAnimation != null) { 1009 mBackgroundFadeInAnimation.cancel(); 1010 mBackgroundFadeInAnimation = null; 1011 } 1012 final float finalAlpha = 1f; 1013 if (animated) { 1014 mBackgroundFadeInAnimation = ValueAnimator.ofFloat(getBackgroundAlpha(), finalAlpha); 1015 mBackgroundFadeInAnimation.addUpdateListener(new AnimatorUpdateListener() { 1016 public void onAnimationUpdate(ValueAnimator animation) { 1017 setBackgroundAlpha(((Float) animation.getAnimatedValue()).floatValue()); 1018 } 1019 }); 1020 mBackgroundFadeInAnimation.setInterpolator(new DecelerateInterpolator(1.5f)); 1021 mBackgroundFadeInAnimation.setDuration(BACKGROUND_FADE_IN_DURATION); 1022 mBackgroundFadeInAnimation.start(); 1023 } else { 1024 setBackgroundAlpha(finalAlpha); 1025 } 1026 } 1027 1028 private void hideBackgroundGradient(float finalAlpha, boolean animated) { 1029 if (mBackground == null) return; 1030 if (mBackgroundFadeInAnimation != null) { 1031 mBackgroundFadeInAnimation.cancel(); 1032 mBackgroundFadeInAnimation = null; 1033 } 1034 if (mBackgroundFadeOutAnimation != null) { 1035 mBackgroundFadeOutAnimation.cancel(); 1036 mBackgroundFadeOutAnimation = null; 1037 } 1038 if (animated) { 1039 mBackgroundFadeOutAnimation = ValueAnimator.ofFloat(getBackgroundAlpha(), finalAlpha); 1040 mBackgroundFadeOutAnimation.addUpdateListener(new AnimatorUpdateListener() { 1041 public void onAnimationUpdate(ValueAnimator animation) { 1042 setBackgroundAlpha(((Float) animation.getAnimatedValue()).floatValue()); 1043 } 1044 }); 1045 mBackgroundFadeOutAnimation.setInterpolator(new DecelerateInterpolator(1.5f)); 1046 mBackgroundFadeOutAnimation.setDuration(BACKGROUND_FADE_OUT_DURATION); 1047 mBackgroundFadeOutAnimation.start(); 1048 } else { 1049 setBackgroundAlpha(finalAlpha); 1050 } 1051 } 1052 1053 public void setBackgroundAlpha(float alpha) { 1054 if (alpha != mBackgroundAlpha) { 1055 mBackgroundAlpha = alpha; 1056 invalidate(); 1057 } 1058 } 1059 1060 public float getBackgroundAlpha() { 1061 return mBackgroundAlpha; 1062 } 1063 1064 /** 1065 * Due to 3D transformations, if two CellLayouts are theoretically touching each other, 1066 * on the xy plane, when one is rotated along the y-axis, the gap between them is perceived 1067 * as being larger. This method computes what offset the rotated view should be translated 1068 * in order to minimize this perceived gap. 1069 * @param degrees Angle of the view 1070 * @param width Width of the view 1071 * @param height Height of the view 1072 * @return Offset to be used in a View.setTranslationX() call 1073 */ 1074 private float getOffsetXForRotation(float degrees, int width, int height) { 1075 mMatrix.reset(); 1076 mCamera.save(); 1077 mCamera.rotateY(Math.abs(degrees)); 1078 mCamera.getMatrix(mMatrix); 1079 mCamera.restore(); 1080 1081 mMatrix.preTranslate(-width * 0.5f, -height * 0.5f); 1082 mMatrix.postTranslate(width * 0.5f, height * 0.5f); 1083 mTempFloat2[0] = width; 1084 mTempFloat2[1] = height; 1085 mMatrix.mapPoints(mTempFloat2); 1086 return (width - mTempFloat2[0]) * (degrees > 0.0f ? 1.0f : -1.0f); 1087 } 1088 1089 float backgroundAlphaInterpolator(float r) { 1090 float pivotA = 0.1f; 1091 float pivotB = 0.4f; 1092 if (r < pivotA) { 1093 return 0; 1094 } else if (r > pivotB) { 1095 return 1.0f; 1096 } else { 1097 return (r - pivotA)/(pivotB - pivotA); 1098 } 1099 } 1100 1101 float overScrollBackgroundAlphaInterpolator(float r) { 1102 float threshold = 0.08f; 1103 1104 if (r > mOverScrollMaxBackgroundAlpha) { 1105 mOverScrollMaxBackgroundAlpha = r; 1106 } else if (r < mOverScrollMaxBackgroundAlpha) { 1107 r = mOverScrollMaxBackgroundAlpha; 1108 } 1109 1110 return Math.min(r / threshold, 1.0f); 1111 } 1112 1113 @Override 1114 protected void screenScrolled(int screenCenter) { 1115 super.screenScrolled(screenCenter); 1116 1117 // If the screen is not xlarge, then don't rotate the CellLayouts 1118 // NOTE: If we don't update the side pages alpha, then we should not hide the side pages. 1119 // see unshrink(). 1120 if (!LauncherApplication.isScreenLarge()) return; 1121 1122 final int halfScreenSize = getMeasuredWidth() / 2; 1123 1124 for (int i = 0; i < getChildCount(); i++) { 1125 CellLayout cl = (CellLayout) getChildAt(i); 1126 if (cl != null) { 1127 int totalDistance = getScaledMeasuredWidth(cl) + mPageSpacing; 1128 int delta = screenCenter - (getChildOffset(i) - 1129 getRelativeChildOffset(i) + halfScreenSize); 1130 1131 float scrollProgress = delta / (totalDistance * 1.0f); 1132 scrollProgress = Math.min(scrollProgress, 1.0f); 1133 scrollProgress = Math.max(scrollProgress, -1.0f); 1134 1135 // If the current page (i) is being overscrolled, we use a different 1136 // set of rules for setting the background alpha multiplier. 1137 if ((mScrollX < 0 && i == 0) || (mScrollX > mMaxScrollX && 1138 i == getChildCount() -1 )) { 1139 cl.setBackgroundAlphaMultiplier( 1140 overScrollBackgroundAlphaInterpolator(Math.abs(scrollProgress))); 1141 mOverScrollPageIndex = i; 1142 } else if (mOverScrollPageIndex != i) { 1143 cl.setBackgroundAlphaMultiplier( 1144 backgroundAlphaInterpolator(Math.abs(scrollProgress))); 1145 } 1146 1147 float rotation = WORKSPACE_ROTATION * scrollProgress; 1148 float translationX = getOffsetXForRotation(rotation, cl.getWidth(), cl.getHeight()); 1149 cl.setTranslationX(translationX); 1150 1151 cl.setRotationY(rotation); 1152 } 1153 } 1154 } 1155 1156 protected void onAttachedToWindow() { 1157 super.onAttachedToWindow(); 1158 mWindowToken = getWindowToken(); 1159 computeScroll(); 1160 mDragController.setWindowToken(mWindowToken); 1161 } 1162 1163 protected void onDetachedFromWindow() { 1164 mWindowToken = null; 1165 } 1166 1167 @Override 1168 protected void onLayout(boolean changed, int left, int top, int right, int bottom) { 1169 if (mFirstLayout && mCurrentPage >= 0 && mCurrentPage < getChildCount()) { 1170 mUpdateWallpaperOffsetImmediately = true; 1171 } 1172 super.onLayout(changed, left, top, right, bottom); 1173 1174 // if shrinkToBottom() is called on initialization, it has to be deferred 1175 // until after the first call to onLayout so that it has the correct width 1176 if (mSwitchStateAfterFirstLayout) { 1177 mSwitchStateAfterFirstLayout = false; 1178 // shrink can trigger a synchronous onLayout call, so we 1179 // post this to avoid a stack overflow / tangled onLayout calls 1180 post(new Runnable() { 1181 public void run() { 1182 shrink(mStateAfterFirstLayout, false); 1183 } 1184 }); 1185 } 1186 } 1187 1188 @Override 1189 protected void onDraw(Canvas canvas) { 1190 updateWallpaperOffsets(); 1191 1192 // Draw the background gradient if necessary 1193 if (mBackground != null && mBackgroundAlpha > 0.0f && mDrawBackground) { 1194 int alpha = (int) (mBackgroundAlpha * 255); 1195 mBackground.setAlpha(alpha); 1196 mBackground.setBounds(mScrollX, 0, mScrollX + getMeasuredWidth(), 1197 getMeasuredHeight()); 1198 mBackground.draw(canvas); 1199 } 1200 1201 super.onDraw(canvas); 1202 } 1203 1204 @Override 1205 protected void dispatchDraw(Canvas canvas) { 1206 super.dispatchDraw(canvas); 1207 1208 if (mInScrollArea && !LauncherApplication.isScreenLarge()) { 1209 final int width = getWidth(); 1210 final int height = getHeight(); 1211 final int pageHeight = getChildAt(0).getHeight(); 1212 1213 // This determines the height of the glowing edge: 90% of the page height 1214 final int padding = (int) ((height - pageHeight) * 0.5f + pageHeight * 0.1f); 1215 1216 final CellLayout leftPage = (CellLayout) getChildAt(mCurrentPage - 1); 1217 final CellLayout rightPage = (CellLayout) getChildAt(mCurrentPage + 1); 1218 1219 if (leftPage != null && leftPage.getIsDragOverlapping()) { 1220 final Drawable d = getResources().getDrawable(R.drawable.page_hover_left_holo); 1221 d.setBounds(mScrollX, padding, mScrollX + d.getIntrinsicWidth(), height - padding); 1222 d.draw(canvas); 1223 } else if (rightPage != null && rightPage.getIsDragOverlapping()) { 1224 final Drawable d = getResources().getDrawable(R.drawable.page_hover_right_holo); 1225 d.setBounds(mScrollX + width - d.getIntrinsicWidth(), padding, mScrollX + width, height - padding); 1226 d.draw(canvas); 1227 } 1228 } 1229 } 1230 1231 @Override 1232 protected boolean onRequestFocusInDescendants(int direction, Rect previouslyFocusedRect) { 1233 if (!mLauncher.isAllAppsVisible()) { 1234 final Folder openFolder = getOpenFolder(); 1235 if (openFolder != null) { 1236 return openFolder.requestFocus(direction, previouslyFocusedRect); 1237 } else { 1238 return super.onRequestFocusInDescendants(direction, previouslyFocusedRect); 1239 } 1240 } 1241 return false; 1242 } 1243 1244 @Override 1245 public int getDescendantFocusability() { 1246 if (isSmall()) { 1247 return ViewGroup.FOCUS_BLOCK_DESCENDANTS; 1248 } 1249 return super.getDescendantFocusability(); 1250 } 1251 1252 @Override 1253 public void addFocusables(ArrayList<View> views, int direction, int focusableMode) { 1254 if (!mLauncher.isAllAppsVisible()) { 1255 final Folder openFolder = getOpenFolder(); 1256 if (openFolder != null) { 1257 openFolder.addFocusables(views, direction); 1258 } else { 1259 super.addFocusables(views, direction, focusableMode); 1260 } 1261 } 1262 } 1263 1264 public boolean isSmall() { 1265 return mState == State.SMALL || mState == State.SPRING_LOADED; 1266 } 1267 1268 void enableChildrenCache(int fromPage, int toPage) { 1269 if (fromPage > toPage) { 1270 final int temp = fromPage; 1271 fromPage = toPage; 1272 toPage = temp; 1273 } 1274 1275 final int screenCount = getChildCount(); 1276 1277 fromPage = Math.max(fromPage, 0); 1278 toPage = Math.min(toPage, screenCount - 1); 1279 1280 for (int i = fromPage; i <= toPage; i++) { 1281 final CellLayout layout = (CellLayout) getChildAt(i); 1282 layout.setChildrenDrawnWithCacheEnabled(true); 1283 layout.setChildrenDrawingCacheEnabled(true); 1284 } 1285 } 1286 1287 void clearChildrenCache() { 1288 final int screenCount = getChildCount(); 1289 for (int i = 0; i < screenCount; i++) { 1290 final CellLayout layout = (CellLayout) getChildAt(i); 1291 layout.setChildrenDrawnWithCacheEnabled(false); 1292 // In software mode, we don't want the items to continue to be drawn into bitmaps 1293 if (!isHardwareAccelerated()) { 1294 layout.setChildrenDrawingCacheEnabled(false); 1295 } 1296 } 1297 } 1298 1299 private void updateChildrenLayersEnabled() { 1300 boolean small = 1301 isSmall() || mIsSwitchingState || mState == State.SPRING_LOADED; 1302 boolean dragging = mAnimatingViewIntoPlace || mIsDragOccuring; 1303 boolean enableChildrenLayers = small || dragging || isPageMoving(); 1304 1305 if (enableChildrenLayers != mChildrenLayersEnabled) { 1306 mChildrenLayersEnabled = enableChildrenLayers; 1307 for (int i = 0; i < getPageCount(); i++) { 1308 ((ViewGroup)getChildAt(i)).setChildrenLayersEnabled(enableChildrenLayers); 1309 } 1310 } 1311 } 1312 1313 @Override 1314 protected void onWallpaperTap(MotionEvent ev) { 1315 final int[] position = mTempCell; 1316 getLocationOnScreen(position); 1317 1318 int pointerIndex = ev.getActionIndex(); 1319 position[0] += (int) ev.getX(pointerIndex); 1320 position[1] += (int) ev.getY(pointerIndex); 1321 1322 mWallpaperManager.sendWallpaperCommand(getWindowToken(), 1323 ev.getAction() == MotionEvent.ACTION_UP 1324 ? WallpaperManager.COMMAND_TAP : WallpaperManager.COMMAND_SECONDARY_TAP, 1325 position[0], position[1], 0, null); 1326 } 1327 1328 private float getYScaleForScreen(int screen) { 1329 int x = Math.abs(screen - 2); 1330 1331 // TODO: This should be generalized for use with arbitrary rotation angles. 1332 switch(x) { 1333 case 0: return EXTRA_SCALE_FACTOR_0; 1334 case 1: return EXTRA_SCALE_FACTOR_1; 1335 case 2: return EXTRA_SCALE_FACTOR_2; 1336 } 1337 return 1.0f; 1338 } 1339 1340 public void shrink(State shrinkState) { 1341 shrink(shrinkState, true); 1342 } 1343 1344 // we use this to shrink the workspace for the all apps view and the customize view 1345 public void shrink(final State shrinkState, boolean animated) { 1346 if (mFirstLayout) { 1347 // (mFirstLayout == "first layout has not happened yet") 1348 // if we get a call to shrink() as part of our initialization (for example, if 1349 // Launcher is started in All Apps mode) then we need to wait for a layout call 1350 // to get our width so we can layout the mini-screen views correctly 1351 mSwitchStateAfterFirstLayout = true; 1352 mStateAfterFirstLayout = shrinkState; 1353 return; 1354 } 1355 1356 // Stop any scrolling, move to the current page right away 1357 setCurrentPage((mNextPage != INVALID_PAGE) ? mNextPage : mCurrentPage); 1358 1359 CellLayout currentPage = (CellLayout) getChildAt(mCurrentPage); 1360 if (currentPage == null) { 1361 Log.w(TAG, "currentPage is NULL! mCurrentPage " + mCurrentPage 1362 + " mNextPage " + mNextPage); 1363 return; 1364 } 1365 if (currentPage.getBackgroundAlphaMultiplier() < 1.0f) { 1366 currentPage.setBackgroundAlpha(0.0f); 1367 } 1368 currentPage.setBackgroundAlphaMultiplier(1.0f); 1369 1370 mState = shrinkState; 1371 updateChildrenLayersEnabled(); 1372 1373 // we intercept and reject all touch events when we're small, so be sure to reset the state 1374 mTouchState = TOUCH_STATE_REST; 1375 mActivePointerId = INVALID_POINTER; 1376 1377 final Resources res = getResources(); 1378 final int screenWidth = getWidth(); 1379 final int screenHeight = getHeight(); 1380 1381 // How much the workspace shrinks when we enter all apps or customization mode 1382 final float shrinkFactor = res.getInteger(R.integer.config_workspaceShrinkPercent) / 100.0f; 1383 1384 // Making the assumption that all pages have the same width as the 0th 1385 final int pageWidth = getChildAt(0).getMeasuredWidth(); 1386 final int pageHeight = getChildAt(0).getMeasuredHeight(); 1387 1388 final int scaledPageWidth = (int) (shrinkFactor * pageWidth); 1389 final int scaledPageHeight = (int) (shrinkFactor * pageHeight); 1390 final float extraScaledSpacing = res.getDimension(R.dimen.smallScreenExtraSpacing); 1391 1392 final int screenCount = getChildCount(); 1393 float totalWidth = screenCount * scaledPageWidth + (screenCount - 1) * extraScaledSpacing; 1394 1395 // We shrink and disappear to nothing 1396 boolean isPortrait = getMeasuredHeight() > getMeasuredWidth(); 1397 float y = screenHeight - scaledPageHeight - (isPortrait ? 1398 getResources().getDimension(R.dimen.allAppsSmallScreenVerticalMarginPortrait) : 1399 getResources().getDimension(R.dimen.allAppsSmallScreenVerticalMarginLandscape)); 1400 float finalAlpha = 0.0f; 1401 1402 int duration = res.getInteger(R.integer.config_appsCustomizeWorkspaceShrinkTime); 1403 1404 // We animate all the screens to the centered position in workspace 1405 // At the same time, the screens become greyed/dimmed 1406 1407 // newX is initialized to the left-most position of the centered screens 1408 float x = mScroller.getFinalX() + screenWidth / 2 - totalWidth / 2; 1409 1410 // We are going to scale about the center of the view, so we need to adjust the positions 1411 // of the views accordingly 1412 x -= (pageWidth - scaledPageWidth) / 2.0f; 1413 y -= (pageHeight - scaledPageHeight) / 2.0f; 1414 1415 if (mAnimator != null) { 1416 mAnimator.cancel(); 1417 } 1418 1419 mAnimator = new AnimatorSet(); 1420 // Workaround the AnimatorSet cancel bug... 1421 mUnshrinkAnimationEnabled = false; 1422 mShrinkAnimationEnabled = true; 1423 1424 initAnimationArrays(); 1425 1426 for (int i = 0; i < screenCount; i++) { 1427 final CellLayout cl = (CellLayout) getChildAt(i); 1428 1429 float rotation = (-i + 2) * WORKSPACE_ROTATION; 1430 float rotationScaleX = (float) (1.0f / Math.cos(Math.PI * rotation / 180.0f)); 1431 float rotationScaleY = getYScaleForScreen(i); 1432 1433 mOldAlphas[i] = cl.getAlpha(); 1434 mNewAlphas[i] = finalAlpha; 1435 if (animated && (mOldAlphas[i] != 0f || mNewAlphas[i] != 0f)) { 1436 // if the CellLayout will be visible during the animation, force building its 1437 // hardware layer immediately so we don't see a blip later in the animation 1438 cl.buildChildrenLayer(); 1439 } 1440 if (animated) { 1441 mOldTranslationXs[i] = cl.getX(); 1442 mOldTranslationYs[i] = cl.getY(); 1443 mOldScaleXs[i] = cl.getScaleX(); 1444 mOldScaleYs[i] = cl.getScaleY(); 1445 mOldBackgroundAlphas[i] = cl.getBackgroundAlpha(); 1446 mOldRotationYs[i] = cl.getRotationY(); 1447 mNewTranslationXs[i] = x; 1448 mNewTranslationYs[i] = y; 1449 mNewScaleXs[i] = shrinkFactor * rotationScaleX; 1450 mNewScaleYs[i] = shrinkFactor * rotationScaleY; 1451 mNewBackgroundAlphas[i] = finalAlpha; 1452 mNewRotationYs[i] = rotation; 1453 } else { 1454 cl.setX((int)x); 1455 cl.setY((int)y); 1456 cl.setScaleX(shrinkFactor * rotationScaleX); 1457 cl.setScaleY(shrinkFactor * rotationScaleY); 1458 cl.setBackgroundAlpha(finalAlpha); 1459 cl.setFastAlpha(finalAlpha); 1460 cl.setRotationY(rotation); 1461 mShrinkAnimationListener.onAnimationEnd(null); 1462 } 1463 // increment newX for the next screen 1464 x += scaledPageWidth + extraScaledSpacing; 1465 } 1466 1467 float wallpaperOffset = 0.5f; 1468 Display display = mLauncher.getWindowManager().getDefaultDisplay(); 1469 int wallpaperTravelHeight = (int) (display.getHeight() * 1470 wallpaperTravelToScreenHeightRatio(display.getWidth(), display.getHeight())); 1471 float offsetFromCenter = (wallpaperTravelHeight / (float) mWallpaperHeight) / 2f; 1472 boolean isLandscape = display.getWidth() > display.getHeight(); 1473 1474 // on phones, don't scroll the wallpaper horizontally or vertically when switching 1475 // to/from all apps 1476 final boolean enableWallpaperEffects = 1477 isHardwareAccelerated() && LauncherApplication.isScreenLarge(); 1478 if (enableWallpaperEffects) { 1479 switch (shrinkState) { 1480 // animating in 1481 case SPRING_LOADED: 1482 wallpaperOffset = 0.5f; 1483 mWallpaperOffset.setVerticalCatchupConstant(isLandscape ? 0.34f : 0.32f); 1484 break; 1485 case SMALL: 1486 // allapps 1487 wallpaperOffset = 0.5f - offsetFromCenter; 1488 mWallpaperOffset.setVerticalCatchupConstant(isLandscape ? 0.34f : 0.32f); 1489 break; 1490 } 1491 } 1492 1493 setLayoutScale(1.0f); 1494 if (animated) { 1495 if (enableWallpaperEffects) { 1496 mWallpaperOffset.setHorizontalCatchupConstant(0.46f); 1497 mWallpaperOffset.setOverrideHorizontalCatchupConstant(true); 1498 } 1499 1500 mSyncWallpaperOffsetWithScroll = false; 1501 1502 ValueAnimator animWithInterpolator = 1503 ValueAnimator.ofFloat(0f, 1f).setDuration(duration); 1504 animWithInterpolator.setInterpolator(mZoomOutInterpolator); 1505 1506 final float oldHorizontalWallpaperOffset = getHorizontalWallpaperOffset(); 1507 final float oldVerticalWallpaperOffset = getVerticalWallpaperOffset(); 1508 final float newHorizontalWallpaperOffset = 0.5f; 1509 final float newVerticalWallpaperOffset = wallpaperOffset; 1510 animWithInterpolator.addUpdateListener(new LauncherAnimatorUpdateListener() { 1511 public void onAnimationUpdate(float a, float b) { 1512 if (!mShrinkAnimationEnabled) return; 1513 mTransitionProgress = b; 1514 if (b == 0f) { 1515 // an optimization, and required for correct behavior. 1516 return; 1517 } 1518 invalidate(); 1519 if (enableWallpaperEffects) { 1520 setHorizontalWallpaperOffset( 1521 a * oldHorizontalWallpaperOffset + b * newHorizontalWallpaperOffset); 1522 setVerticalWallpaperOffset( 1523 a * oldVerticalWallpaperOffset + b * newVerticalWallpaperOffset); 1524 } 1525 for (int i = 0; i < screenCount; i++) { 1526 final CellLayout cl = (CellLayout) getChildAt(i); 1527 cl.fastInvalidate(); 1528 cl.setFastX(a * mOldTranslationXs[i] + b * mNewTranslationXs[i]); 1529 cl.setFastY(a * mOldTranslationYs[i] + b * mNewTranslationYs[i]); 1530 cl.setFastScaleX(a * mOldScaleXs[i] + b * mNewScaleXs[i]); 1531 cl.setFastScaleY(a * mOldScaleYs[i] + b * mNewScaleYs[i]); 1532 cl.setFastBackgroundAlpha( 1533 a * mOldBackgroundAlphas[i] + b * mNewBackgroundAlphas[i]); 1534 cl.setFastAlpha(a * mOldAlphas[i] + b * mNewAlphas[i]); 1535 cl.setFastRotationY(a * mOldRotationYs[i] + b * mNewRotationYs[i]); 1536 } 1537 1538 // Shrink the hotset the same amount we are shrinking the screens 1539 if (shrinkState == State.SPRING_LOADED && mLauncher.getHotseat() != null) { 1540 View hotseat = mLauncher.getHotseat().getLayout(); 1541 hotseat.fastInvalidate(); 1542 hotseat.setFastScaleX(a * mOldScaleXs[0] + b * mNewScaleXs[0]); 1543 hotseat.setFastScaleY(a * mOldScaleXs[0] + b * mNewScaleXs[0]); 1544 } 1545 } 1546 }); 1547 mAnimator.playTogether(animWithInterpolator); 1548 mAnimator.addListener(mShrinkAnimationListener); 1549 mAnimator.start(); 1550 } else if (enableWallpaperEffects) { 1551 setVerticalWallpaperOffset(wallpaperOffset); 1552 setHorizontalWallpaperOffset(0.5f); 1553 updateWallpaperOffsetImmediately(); 1554 } 1555 setChildrenDrawnWithCacheEnabled(true); 1556 1557 showBackgroundGradientForAllApps(animated); 1558 } 1559 1560 @Override 1561 protected void updateAdjacentPagesAlpha() { 1562 if (!isSmall()) { 1563 super.updateAdjacentPagesAlpha(); 1564 } 1565 } 1566 1567 /* 1568 * This interpolator emulates the rate at which the perceived scale of an object changes 1569 * as its distance from a camera increases. When this interpolator is applied to a scale 1570 * animation on a view, it evokes the sense that the object is shrinking due to moving away 1571 * from the camera. 1572 */ 1573 static class ZInterpolator implements TimeInterpolator { 1574 private float focalLength; 1575 1576 public ZInterpolator(float foc) { 1577 focalLength = foc; 1578 } 1579 1580 public float getInterpolation(float input) { 1581 return (1.0f - focalLength / (focalLength + input)) / 1582 (1.0f - focalLength / (focalLength + 1.0f)); 1583 } 1584 } 1585 1586 /* 1587 * The exact reverse of ZInterpolator. 1588 */ 1589 static class InverseZInterpolator implements TimeInterpolator { 1590 private ZInterpolator zInterpolator; 1591 public InverseZInterpolator(float foc) { 1592 zInterpolator = new ZInterpolator(foc); 1593 } 1594 public float getInterpolation(float input) { 1595 return 1 - zInterpolator.getInterpolation(1 - input); 1596 } 1597 } 1598 1599 /* 1600 * ZInterpolator compounded with an ease-out. 1601 */ 1602 static class ZoomOutInterpolator implements TimeInterpolator { 1603 private final ZInterpolator zInterpolator = new ZInterpolator(0.2f); 1604 private final DecelerateInterpolator decelerate = new DecelerateInterpolator(1.8f); 1605 1606 public float getInterpolation(float input) { 1607 return decelerate.getInterpolation(zInterpolator.getInterpolation(input)); 1608 } 1609 } 1610 1611 /* 1612 * InvereZInterpolator compounded with an ease-out. 1613 */ 1614 static class ZoomInInterpolator implements TimeInterpolator { 1615 private final InverseZInterpolator inverseZInterpolator = new InverseZInterpolator(0.35f); 1616 private final DecelerateInterpolator decelerate = new DecelerateInterpolator(3.0f); 1617 1618 public float getInterpolation(float input) { 1619 return decelerate.getInterpolation(inverseZInterpolator.getInterpolation(input)); 1620 } 1621 } 1622 1623 private final ZoomOutInterpolator mZoomOutInterpolator = new ZoomOutInterpolator(); 1624 private final ZoomInInterpolator mZoomInInterpolator = new ZoomInInterpolator(); 1625 1626 /* 1627 * 1628 * We call these methods (onDragStartedWithItemSpans/onDragStartedWithSize) whenever we 1629 * start a drag in Launcher, regardless of whether the drag has ever entered the Workspace 1630 * 1631 * These methods mark the appropriate pages as accepting drops (which alters their visual 1632 * appearance). 1633 * 1634 */ 1635 public void onDragStartedWithItem(View v) { 1636 final Canvas canvas = new Canvas(); 1637 1638 // We need to add extra padding to the bitmap to make room for the glow effect 1639 final int bitmapPadding = HolographicOutlineHelper.MAX_OUTER_BLUR_RADIUS; 1640 1641 // The outline is used to visualize where the item will land if dropped 1642 mDragOutline = createDragOutline(v, canvas, bitmapPadding); 1643 } 1644 1645 public void onDragStartedWithItemSpans(int spanX, int spanY, Bitmap b) { 1646 final Canvas canvas = new Canvas(); 1647 1648 // We need to add extra padding to the bitmap to make room for the glow effect 1649 final int bitmapPadding = HolographicOutlineHelper.MAX_OUTER_BLUR_RADIUS; 1650 1651 CellLayout cl = (CellLayout) getChildAt(0); 1652 1653 int[] size = cl.cellSpansToSize(spanX, spanY); 1654 1655 // The outline is used to visualize where the item will land if dropped 1656 mDragOutline = createDragOutline(b, canvas, bitmapPadding, size[0], size[1]); 1657 } 1658 1659 // we call this method whenever a drag and drop in Launcher finishes, even if Workspace was 1660 // never dragged over 1661 public void onDragStopped(boolean success) { 1662 // In the success case, DragController has already called onDragExit() 1663 if (!success) { 1664 doDragExit(null); 1665 } 1666 } 1667 1668 // We call this when we trigger an unshrink by clicking on the CellLayout cl 1669 public void unshrink(CellLayout clThatWasClicked) { 1670 unshrink(clThatWasClicked, false); 1671 } 1672 1673 public void unshrink(CellLayout clThatWasClicked, boolean springLoaded) { 1674 int newCurrentPage = indexOfChild(clThatWasClicked); 1675 if (isSmall()) { 1676 if (springLoaded) { 1677 setLayoutScale(mSpringLoadedShrinkFactor); 1678 } 1679 scrollToNewPageWithoutMovingPages(newCurrentPage); 1680 unshrink(true, springLoaded); 1681 } 1682 } 1683 1684 1685 public void enterSpringLoadedDragMode(CellLayout clThatWasClicked) { 1686 unshrink(clThatWasClicked, true); 1687 } 1688 1689 public void exitSpringLoadedDragMode(State shrinkState) { 1690 shrink(shrinkState); 1691 } 1692 1693 public void exitWidgetResizeMode() { 1694 DragLayer dragLayer = mLauncher.getDragLayer(); 1695 dragLayer.clearAllResizeFrames(); 1696 } 1697 1698 void unshrink(boolean animated) { 1699 unshrink(animated, false); 1700 } 1701 1702 private void initAnimationArrays() { 1703 final int childCount = getChildCount(); 1704 if (mOldTranslationXs != null) return; 1705 mOldTranslationXs = new float[childCount]; 1706 mOldTranslationYs = new float[childCount]; 1707 mOldScaleXs = new float[childCount]; 1708 mOldScaleYs = new float[childCount]; 1709 mOldBackgroundAlphas = new float[childCount]; 1710 mOldBackgroundAlphaMultipliers = new float[childCount]; 1711 mOldAlphas = new float[childCount]; 1712 mOldRotationYs = new float[childCount]; 1713 mNewTranslationXs = new float[childCount]; 1714 mNewTranslationYs = new float[childCount]; 1715 mNewScaleXs = new float[childCount]; 1716 mNewScaleYs = new float[childCount]; 1717 mNewBackgroundAlphas = new float[childCount]; 1718 mNewBackgroundAlphaMultipliers = new float[childCount]; 1719 mNewAlphas = new float[childCount]; 1720 mNewRotationYs = new float[childCount]; 1721 } 1722 1723 void unshrink(boolean animated, final boolean springLoaded) { 1724 if (mFirstLayout) { 1725 // (mFirstLayout == "first layout has not happened yet") 1726 // cancel any pending shrinks that were set earlier 1727 mSwitchStateAfterFirstLayout = false; 1728 mStateAfterFirstLayout = State.NORMAL; 1729 return; 1730 } 1731 1732 if (isSmall()) { 1733 float finalScaleFactor = 1.0f; 1734 float finalBackgroundAlpha = 0.0f; 1735 if (springLoaded) { 1736 finalScaleFactor = mSpringLoadedShrinkFactor; 1737 finalBackgroundAlpha = 1.0f; 1738 mState = State.SPRING_LOADED; 1739 } else { 1740 mState = State.NORMAL; 1741 } 1742 if (mAnimator != null) { 1743 mAnimator.cancel(); 1744 } 1745 1746 mAnimator = new AnimatorSet(); 1747 1748 // Workaround the AnimatorSet cancel bug... 1749 mShrinkAnimationEnabled = false; 1750 mUnshrinkAnimationEnabled = true; 1751 1752 final int screenCount = getChildCount(); 1753 initAnimationArrays(); 1754 1755 final int duration = getResources().getInteger(R.integer.config_workspaceUnshrinkTime); 1756 for (int i = 0; i < screenCount; i++) { 1757 final CellLayout cl = (CellLayout)getChildAt(i); 1758 float finalAlphaValue = 0f; 1759 float rotation = 0f; 1760 1761 // Set the final alpha depending on whether we are fading side pages. On phone ui, 1762 // we don't do any of the rotation, or the fading alpha in portrait. See the 1763 // ctor and screenScrolled(). 1764 if (mFadeInAdjacentScreens) { 1765 finalAlphaValue = (i == mCurrentPage) ? 1f : 0f; 1766 } else { 1767 finalAlphaValue = 1f; 1768 } 1769 1770 if (LauncherApplication.isScreenLarge()) { 1771 if (i < mCurrentPage) { 1772 rotation = WORKSPACE_ROTATION; 1773 } else if (i > mCurrentPage) { 1774 rotation = -WORKSPACE_ROTATION; 1775 } 1776 } 1777 float finalAlphaMultiplierValue = 1f; 1778 1779 float translation = 0f; 1780 1781 // If the screen is not xlarge, then don't rotate the CellLayouts 1782 // NOTE: If we don't update the side pages alpha, then we should not hide the side 1783 // pages. see unshrink(). 1784 if (LauncherApplication.isScreenLarge()) { 1785 translation = getOffsetXForRotation(rotation, cl.getWidth(), cl.getHeight()); 1786 } 1787 1788 mOldAlphas[i] = cl.getAlpha(); 1789 mNewAlphas[i] = finalAlphaValue; 1790 if (animated) { 1791 mOldTranslationXs[i] = cl.getTranslationX(); 1792 mOldTranslationYs[i] = cl.getTranslationY(); 1793 mOldScaleXs[i] = cl.getScaleX(); 1794 mOldScaleYs[i] = cl.getScaleY(); 1795 mOldBackgroundAlphas[i] = cl.getBackgroundAlpha(); 1796 mOldBackgroundAlphaMultipliers[i] = cl.getBackgroundAlphaMultiplier(); 1797 mOldRotationYs[i] = cl.getRotationY(); 1798 1799 mNewTranslationXs[i] = translation; 1800 mNewTranslationYs[i] = 0f; 1801 mNewScaleXs[i] = finalScaleFactor; 1802 mNewScaleYs[i] = finalScaleFactor; 1803 mNewBackgroundAlphas[i] = finalBackgroundAlpha; 1804 mNewBackgroundAlphaMultipliers[i] = finalAlphaMultiplierValue; 1805 mNewRotationYs[i] = rotation; 1806 } else { 1807 cl.setTranslationX(translation); 1808 cl.setTranslationY(0.0f); 1809 cl.setScaleX(finalScaleFactor); 1810 cl.setScaleY(finalScaleFactor); 1811 cl.setBackgroundAlpha(0.0f); 1812 cl.setBackgroundAlphaMultiplier(finalAlphaMultiplierValue); 1813 cl.setAlpha(finalAlphaValue); 1814 cl.setRotationY(rotation); 1815 mUnshrinkAnimationListener.onAnimationEnd(null); 1816 } 1817 } 1818 Display display = mLauncher.getWindowManager().getDefaultDisplay(); 1819 boolean isLandscape = display.getWidth() > display.getHeight(); 1820 // on phones, don't scroll the wallpaper horizontally or vertically when switching 1821 // to/from all apps 1822 final boolean enableWallpaperEffects = 1823 isHardwareAccelerated() && LauncherApplication.isScreenLarge(); 1824 if (enableWallpaperEffects) { 1825 switch (mState) { 1826 // animating out 1827 case SPRING_LOADED: 1828 if (animated) { 1829 mWallpaperOffset.setHorizontalCatchupConstant(isLandscape ? 0.49f : 0.46f); 1830 mWallpaperOffset.setVerticalCatchupConstant(isLandscape ? 0.49f : 0.46f); 1831 mWallpaperOffset.setOverrideHorizontalCatchupConstant(true); 1832 } 1833 break; 1834 case SMALL: 1835 // all apps 1836 if (animated) { 1837 mWallpaperOffset.setHorizontalCatchupConstant(isLandscape ? 0.65f : 0.65f); 1838 mWallpaperOffset.setVerticalCatchupConstant(isLandscape ? 0.65f : 0.65f); 1839 mWallpaperOffset.setOverrideHorizontalCatchupConstant(true); 1840 } 1841 break; 1842 } 1843 } 1844 if (animated) { 1845 ValueAnimator animWithInterpolator = 1846 ValueAnimator.ofFloat(0f, 1f).setDuration(duration); 1847 animWithInterpolator.setInterpolator(mZoomInInterpolator); 1848 1849 final float oldHorizontalWallpaperOffset = enableWallpaperEffects ? 1850 getHorizontalWallpaperOffset() : 0; 1851 final float oldVerticalWallpaperOffset = enableWallpaperEffects ? 1852 getVerticalWallpaperOffset() : 0; 1853 final float newHorizontalWallpaperOffset = enableWallpaperEffects ? 1854 wallpaperOffsetForCurrentScroll() : 0; 1855 final float newVerticalWallpaperOffset = enableWallpaperEffects ? 0.5f : 0; 1856 animWithInterpolator.addUpdateListener(new LauncherAnimatorUpdateListener() { 1857 public void onAnimationUpdate(float a, float b) { 1858 if (!mUnshrinkAnimationEnabled) return; 1859 mTransitionProgress = b; 1860 if (b == 0f) { 1861 // an optimization, but not required 1862 return; 1863 } 1864 invalidate(); 1865 if (enableWallpaperEffects) { 1866 setHorizontalWallpaperOffset(a * oldHorizontalWallpaperOffset 1867 + b * newHorizontalWallpaperOffset); 1868 setVerticalWallpaperOffset(a * oldVerticalWallpaperOffset 1869 + b * newVerticalWallpaperOffset); 1870 } 1871 for (int i = 0; i < screenCount; i++) { 1872 final CellLayout cl = (CellLayout) getChildAt(i); 1873 cl.fastInvalidate(); 1874 cl.setFastTranslationX( 1875 a * mOldTranslationXs[i] + b * mNewTranslationXs[i]); 1876 cl.setFastTranslationY( 1877 a * mOldTranslationYs[i] + b * mNewTranslationYs[i]); 1878 cl.setFastScaleX(a * mOldScaleXs[i] + b * mNewScaleXs[i]); 1879 cl.setFastScaleY(a * mOldScaleYs[i] + b * mNewScaleYs[i]); 1880 cl.setFastBackgroundAlpha( 1881 a * mOldBackgroundAlphas[i] + b * mNewBackgroundAlphas[i]); 1882 cl.setBackgroundAlphaMultiplier(a * mOldBackgroundAlphaMultipliers[i] + 1883 b * mNewBackgroundAlphaMultipliers[i]); 1884 cl.setFastAlpha(a * mOldAlphas[i] + b * mNewAlphas[i]); 1885 } 1886 1887 // Unshrink the hotset the same amount we are unshrinking the screens 1888 if (mLauncher.getHotseat() != null) { 1889 View hotseat = mLauncher.getHotseat().getLayout(); 1890 hotseat.fastInvalidate(); 1891 hotseat.setFastScaleX(a * mOldScaleXs[0] + b * mNewScaleXs[0]); 1892 hotseat.setFastScaleY(a * mOldScaleXs[0] + b * mNewScaleXs[0]); 1893 } 1894 } 1895 }); 1896 1897 ValueAnimator rotationAnim = 1898 ValueAnimator.ofFloat(0f, 1f).setDuration(duration); 1899 rotationAnim.setInterpolator(new DecelerateInterpolator(2.0f)); 1900 rotationAnim.addUpdateListener(new LauncherAnimatorUpdateListener() { 1901 public void onAnimationUpdate(float a, float b) { 1902 if (!mUnshrinkAnimationEnabled) return; 1903 // don't invalidate workspace because we did it above 1904 if (b == 0f) { 1905 // an optimization, but not required 1906 return; 1907 } 1908 for (int i = 0; i < screenCount; i++) { 1909 final CellLayout cl = (CellLayout) getChildAt(i); 1910 cl.setFastRotationY(a * mOldRotationYs[i] + b * mNewRotationYs[i]); 1911 } 1912 } 1913 }); 1914 1915 mAnimator.playTogether(animWithInterpolator, rotationAnim); 1916 // If we call this when we're not animated, onAnimationEnd is never called on 1917 // the listener; make sure we only use the listener when we're actually animating 1918 mAnimator.addListener(mUnshrinkAnimationListener); 1919 mAnimator.start(); 1920 } else { 1921 if (enableWallpaperEffects) { 1922 setHorizontalWallpaperOffset(wallpaperOffsetForCurrentScroll()); 1923 setVerticalWallpaperOffset(0.5f); 1924 updateWallpaperOffsetImmediately(); 1925 } 1926 } 1927 } 1928 1929 hideBackgroundGradient(springLoaded ? getResources().getInteger( 1930 R.integer.config_appsCustomizeSpringLoadedBgAlpha) / 100f : 0f, animated); 1931 } 1932 1933 /** 1934 * Draw the View v into the given Canvas. 1935 * 1936 * @param v the view to draw 1937 * @param destCanvas the canvas to draw on 1938 * @param padding the horizontal and vertical padding to use when drawing 1939 */ 1940 private void drawDragView(View v, Canvas destCanvas, int padding, boolean pruneToDrawable) { 1941 final Rect clipRect = mTempRect; 1942 v.getDrawingRect(clipRect); 1943 1944 destCanvas.save(); 1945 if (v instanceof TextView && pruneToDrawable) { 1946 Drawable d = ((TextView) v).getCompoundDrawables()[1]; 1947 clipRect.set(0, 0, d.getIntrinsicWidth() + padding, d.getIntrinsicHeight() + padding); 1948 destCanvas.translate(padding / 2, padding / 2); 1949 d.draw(destCanvas); 1950 } else { 1951 if (v instanceof FolderIcon) { 1952 clipRect.bottom = getResources().getDimensionPixelSize(R.dimen.folder_preview_size); 1953 } else if (v instanceof BubbleTextView) { 1954 final BubbleTextView tv = (BubbleTextView) v; 1955 clipRect.bottom = tv.getExtendedPaddingTop() - (int) BubbleTextView.PADDING_V + 1956 tv.getLayout().getLineTop(0); 1957 } else if (v instanceof TextView) { 1958 final TextView tv = (TextView) v; 1959 clipRect.bottom = tv.getExtendedPaddingTop() - tv.getCompoundDrawablePadding() + 1960 tv.getLayout().getLineTop(0); 1961 } 1962 destCanvas.translate(-v.getScrollX() + padding / 2, -v.getScrollY() + padding / 2); 1963 destCanvas.clipRect(clipRect, Op.REPLACE); 1964 v.draw(destCanvas); 1965 } 1966 destCanvas.restore(); 1967 } 1968 1969 /** 1970 * Returns a new bitmap to show when the given View is being dragged around. 1971 * Responsibility for the bitmap is transferred to the caller. 1972 */ 1973 public Bitmap createDragBitmap(View v, Canvas canvas, int padding) { 1974 final int outlineColor = getResources().getColor(R.color.drag_outline_color); 1975 Bitmap b; 1976 1977 if (v instanceof TextView) { 1978 Drawable d = ((TextView) v).getCompoundDrawables()[1]; 1979 b = Bitmap.createBitmap(d.getIntrinsicWidth() + padding, 1980 d.getIntrinsicHeight() + padding, Bitmap.Config.ARGB_8888); 1981 } else { 1982 b = Bitmap.createBitmap( 1983 v.getWidth() + padding, v.getHeight() + padding, Bitmap.Config.ARGB_8888); 1984 } 1985 1986 canvas.setBitmap(b); 1987 drawDragView(v, canvas, padding, true); 1988 mOutlineHelper.applyOuterBlur(b, canvas, outlineColor); 1989 1990 return b; 1991 } 1992 1993 /** 1994 * Returns a new bitmap to be used as the object outline, e.g. to visualize the drop location. 1995 * Responsibility for the bitmap is transferred to the caller. 1996 */ 1997 private Bitmap createDragOutline(View v, Canvas canvas, int padding) { 1998 final int outlineColor = getResources().getColor(R.color.drag_outline_color); 1999 final Bitmap b = Bitmap.createBitmap( 2000 v.getWidth() + padding, v.getHeight() + padding, Bitmap.Config.ARGB_8888); 2001 2002 canvas.setBitmap(b); 2003 drawDragView(v, canvas, padding, false); 2004 mOutlineHelper.applyMediumExpensiveOutlineWithBlur(b, canvas, outlineColor, outlineColor); 2005 return b; 2006 } 2007 2008 /** 2009 * Returns a new bitmap to be used as the object outline, e.g. to visualize the drop location. 2010 * Responsibility for the bitmap is transferred to the caller. 2011 */ 2012 private Bitmap createDragOutline(Bitmap orig, Canvas canvas, int padding, int w, int h) { 2013 final int outlineColor = getResources().getColor(R.color.drag_outline_color); 2014 final Bitmap b = Bitmap.createBitmap(w, h, Bitmap.Config.ARGB_8888); 2015 canvas.setBitmap(b); 2016 2017 Rect src = new Rect(0, 0, orig.getWidth(), orig.getHeight()); 2018 float scaleFactor = Math.min((w - padding) / (float) orig.getWidth(), 2019 (h - padding) / (float) orig.getHeight()); 2020 int scaledWidth = (int) (scaleFactor * orig.getWidth()); 2021 int scaledHeight = (int) (scaleFactor * orig.getHeight()); 2022 Rect dst = new Rect(0, 0, scaledWidth, scaledHeight); 2023 2024 // center the image 2025 dst.offset((w - scaledWidth) / 2, (h - scaledHeight) / 2); 2026 2027 Paint p = new Paint(); 2028 p.setFilterBitmap(true); 2029 canvas.drawBitmap(orig, src, dst, p); 2030 mOutlineHelper.applyMediumExpensiveOutlineWithBlur(b, canvas, outlineColor, outlineColor); 2031 2032 return b; 2033 } 2034 2035 /** 2036 * Creates a drag outline to represent a drop (that we don't have the actual information for 2037 * yet). May be changed in the future to alter the drop outline slightly depending on the 2038 * clip description mime data. 2039 */ 2040 private Bitmap createExternalDragOutline(Canvas canvas, int padding) { 2041 Resources r = getResources(); 2042 final int outlineColor = r.getColor(R.color.drag_outline_color); 2043 final int iconWidth = r.getDimensionPixelSize(R.dimen.workspace_cell_width); 2044 final int iconHeight = r.getDimensionPixelSize(R.dimen.workspace_cell_height); 2045 final int rectRadius = r.getDimensionPixelSize(R.dimen.external_drop_icon_rect_radius); 2046 final int inset = (int) (Math.min(iconWidth, iconHeight) * 0.2f); 2047 final Bitmap b = Bitmap.createBitmap( 2048 iconWidth + padding, iconHeight + padding, Bitmap.Config.ARGB_8888); 2049 2050 canvas.setBitmap(b); 2051 canvas.drawRoundRect(new RectF(inset, inset, iconWidth - inset, iconHeight - inset), 2052 rectRadius, rectRadius, mExternalDragOutlinePaint); 2053 mOutlineHelper.applyMediumExpensiveOutlineWithBlur(b, canvas, outlineColor, outlineColor); 2054 return b; 2055 } 2056 2057 void startDrag(CellLayout.CellInfo cellInfo) { 2058 View child = cellInfo.cell; 2059 2060 // Make sure the drag was started by a long press as opposed to a long click. 2061 if (!child.isInTouchMode()) { 2062 return; 2063 } 2064 2065 mDragInfo = cellInfo; 2066 child.setVisibility(GONE); 2067 2068 child.clearFocus(); 2069 child.setPressed(false); 2070 2071 final Canvas canvas = new Canvas(); 2072 2073 // We need to add extra padding to the bitmap to make room for the glow effect 2074 final int bitmapPadding = HolographicOutlineHelper.MAX_OUTER_BLUR_RADIUS; 2075 2076 // The outline is used to visualize where the item will land if dropped 2077 mDragOutline = createDragOutline(child, canvas, bitmapPadding); 2078 beginDragShared(child, this); 2079 } 2080 2081 public void beginDragShared(View child, DragSource source) { 2082 // We need to add extra padding to the bitmap to make room for the glow effect 2083 final int bitmapPadding = HolographicOutlineHelper.MAX_OUTER_BLUR_RADIUS; 2084 2085 // The drag bitmap follows the touch point around on the screen 2086 final Bitmap b = createDragBitmap(child, new Canvas(), bitmapPadding); 2087 2088 final int bmpWidth = b.getWidth(); 2089 2090 mLauncher.getDragLayer().getLocationInDragLayer(child, mTempXY); 2091 final int dragLayerX = (int) mTempXY[0] + (child.getWidth() - bmpWidth) / 2; 2092 int dragLayerY = mTempXY[1] - bitmapPadding / 2; 2093 2094 Rect dragRect = null; 2095 if (child instanceof BubbleTextView) { 2096 int iconSize = getResources().getDimensionPixelSize(R.dimen.app_icon_size); 2097 int top = child.getPaddingTop(); 2098 int left = (bmpWidth - iconSize) / 2; 2099 int right = left + iconSize; 2100 int bottom = top + iconSize; 2101 dragLayerY += top; 2102 dragRect = new Rect(left, top, right, bottom); 2103 } else if (child instanceof FolderIcon) { 2104 int previewSize = getResources().getDimensionPixelSize(R.dimen.folder_preview_size); 2105 dragRect = new Rect(0, 0, child.getWidth(), previewSize); 2106 } 2107 2108 mDragController.startDrag(b, dragLayerX, dragLayerY, source, child.getTag(), 2109 DragController.DRAG_ACTION_MOVE, dragRect); 2110 b.recycle(); 2111 } 2112 2113 void addApplicationShortcut(ShortcutInfo info, CellLayout target, long container, int screen, 2114 int cellX, int cellY, boolean insertAtFirst, int intersectX, int intersectY) { 2115 View view = mLauncher.createShortcut(R.layout.application, target, (ShortcutInfo) info); 2116 2117 final int[] cellXY = new int[2]; 2118 target.findCellForSpanThatIntersects(cellXY, 1, 1, intersectX, intersectY); 2119 addInScreen(view, container, screen, cellXY[0], cellXY[1], 1, 1, insertAtFirst); 2120 LauncherModel.addOrMoveItemInDatabase(mLauncher, info, container, screen, cellXY[0], 2121 cellXY[1]); 2122 } 2123 2124 public boolean transitionStateShouldAllowDrop() { 2125 return (!isSwitchingState() || mTransitionProgress > 0.5f); 2126 } 2127 2128 /** 2129 * {@inheritDoc} 2130 */ 2131 public boolean acceptDrop(DragObject d) { 2132 // If it's an external drop (e.g. from All Apps), check if it should be accepted 2133 if (d.dragSource != this) { 2134 // Don't accept the drop if we're not over a screen at time of drop 2135 if (mDragTargetLayout == null) { 2136 return false; 2137 } 2138 if (!transitionStateShouldAllowDrop()) return false; 2139 2140 mDragViewVisualCenter = getDragViewVisualCenter(d.x, d.y, d.xOffset, d.yOffset, 2141 d.dragView, mDragViewVisualCenter); 2142 2143 int spanX = 1; 2144 int spanY = 1; 2145 View ignoreView = null; 2146 if (mDragInfo != null) { 2147 final CellLayout.CellInfo dragCellInfo = mDragInfo; 2148 spanX = dragCellInfo.spanX; 2149 spanY = dragCellInfo.spanY; 2150 ignoreView = dragCellInfo.cell; 2151 } else { 2152 final ItemInfo dragInfo = (ItemInfo) d.dragInfo; 2153 spanX = dragInfo.spanX; 2154 spanY = dragInfo.spanY; 2155 } 2156 2157 mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], 2158 (int) mDragViewVisualCenter[1], spanX, spanY, mDragTargetLayout, mTargetCell); 2159 if (willCreateUserFolder((ItemInfo) d.dragInfo, mDragTargetLayout, mTargetCell, true)) { 2160 return true; 2161 } 2162 if (willAddToExistingUserFolder((ItemInfo) d.dragInfo, mDragTargetLayout, 2163 mTargetCell)) { 2164 return true; 2165 } 2166 2167 2168 // Don't accept the drop if there's no room for the item 2169 if (!mDragTargetLayout.findCellForSpanIgnoring(null, spanX, spanY, ignoreView)) { 2170 mLauncher.showOutOfSpaceMessage(); 2171 return false; 2172 } 2173 } 2174 return true; 2175 } 2176 2177 boolean willCreateUserFolder(ItemInfo info, CellLayout target, int[] targetCell, 2178 boolean considerTimeout) { 2179 View dropOverView = target.getChildAt(targetCell[0], targetCell[1]); 2180 2181 boolean hasntMoved = false; 2182 if (mDragInfo != null) { 2183 CellLayout cellParent = getParentCellLayoutForView(mDragInfo.cell); 2184 hasntMoved = (mDragInfo.cellX == targetCell[0] && 2185 mDragInfo.cellY == targetCell[1]) && (cellParent == target); 2186 } 2187 2188 if (dropOverView == null || hasntMoved || (considerTimeout && !mCreateUserFolderOnDrop)) { 2189 return false; 2190 } 2191 2192 boolean aboveShortcut = (dropOverView.getTag() instanceof ShortcutInfo); 2193 boolean willBecomeShortcut = 2194 (info.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPLICATION || 2195 info.itemType == LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT); 2196 2197 return (aboveShortcut && willBecomeShortcut); 2198 } 2199 2200 boolean willAddToExistingUserFolder(Object dragInfo, CellLayout target, int[] targetCell) { 2201 View dropOverView = target.getChildAt(targetCell[0], targetCell[1]); 2202 if (dropOverView instanceof FolderIcon) { 2203 FolderIcon fi = (FolderIcon) dropOverView; 2204 if (fi.acceptDrop(dragInfo)) { 2205 return true; 2206 } 2207 } 2208 return false; 2209 } 2210 2211 boolean createUserFolderIfNecessary(View newView, long container, CellLayout target, 2212 int[] targetCell, boolean external, DragView dragView, Runnable postAnimationRunnable) { 2213 View v = target.getChildAt(targetCell[0], targetCell[1]); 2214 boolean hasntMoved = false; 2215 if (mDragInfo != null) { 2216 CellLayout cellParent = getParentCellLayoutForView(mDragInfo.cell); 2217 hasntMoved = (mDragInfo.cellX == targetCell[0] && 2218 mDragInfo.cellY == targetCell[1]) && (cellParent == target); 2219 } 2220 2221 if (v == null || hasntMoved || !mCreateUserFolderOnDrop) return false; 2222 mCreateUserFolderOnDrop = false; 2223 final int screen = (targetCell == null) ? mDragInfo.screen : indexOfChild(target); 2224 2225 boolean aboveShortcut = (v.getTag() instanceof ShortcutInfo); 2226 boolean willBecomeShortcut = (newView.getTag() instanceof ShortcutInfo); 2227 2228 if (aboveShortcut && willBecomeShortcut) { 2229 ShortcutInfo sourceInfo = (ShortcutInfo) newView.getTag(); 2230 ShortcutInfo destInfo = (ShortcutInfo) v.getTag(); 2231 // if the drag started here, we need to remove it from the workspace 2232 if (!external) { 2233 getParentCellLayoutForView(mDragInfo.cell).removeView(mDragInfo.cell); 2234 } 2235 2236 Rect folderLocation = new Rect(); 2237 float scale = mLauncher.getDragLayer().getDescendantRectRelativeToSelf(v, folderLocation); 2238 target.removeView(v); 2239 2240 FolderIcon fi = 2241 mLauncher.addFolder(target, container, screen, targetCell[0], targetCell[1]); 2242 destInfo.cellX = -1; 2243 destInfo.cellY = -1; 2244 sourceInfo.cellX = -1; 2245 sourceInfo.cellY = -1; 2246 2247 fi.performCreateAnimation(destInfo, v, sourceInfo, dragView, folderLocation, scale, 2248 postAnimationRunnable); 2249 return true; 2250 } 2251 return false; 2252 } 2253 2254 boolean addToExistingFolderIfNecessary(View newView, CellLayout target, int[] targetCell, 2255 DragObject d, boolean external) { 2256 View dropOverView = target.getChildAt(targetCell[0], targetCell[1]); 2257 if (dropOverView instanceof FolderIcon) { 2258 FolderIcon fi = (FolderIcon) dropOverView; 2259 if (fi.acceptDrop(d.dragInfo)) { 2260 fi.onDrop(d); 2261 2262 // if the drag started here, we need to remove it from the workspace 2263 if (!external) { 2264 getParentCellLayoutForView(mDragInfo.cell).removeView(mDragInfo.cell); 2265 } 2266 return true; 2267 } 2268 } 2269 return false; 2270 } 2271 2272 public void onDrop(DragObject d) { 2273 mDragViewVisualCenter = getDragViewVisualCenter(d.x, d.y, d.xOffset, d.yOffset, d.dragView, 2274 mDragViewVisualCenter); 2275 2276 // We want the point to be mapped to the dragTarget. 2277 if (mDragTargetLayout != null) { 2278 if (mLauncher.isHotseatLayout(mDragTargetLayout)) { 2279 mapPointFromSelfToSibling(mLauncher.getHotseat(), mDragViewVisualCenter); 2280 } else { 2281 mapPointFromSelfToChild(mDragTargetLayout, mDragViewVisualCenter, null); 2282 } 2283 } 2284 2285 // When you are in customization mode and drag to a particular screen, make that the 2286 // new current/default screen, so any subsequent taps add items to that screen 2287 if (!mLauncher.isAllAppsVisible()) { 2288 int dragTargetIndex = indexOfChild(mDragTargetLayout); 2289 if (dragTargetIndex > -1 && mCurrentPage != dragTargetIndex && 2290 (isSmall() || mIsSwitchingState)) { 2291 scrollToNewPageWithoutMovingPages(dragTargetIndex); 2292 } 2293 } 2294 CellLayout dropTargetLayout = mDragTargetLayout; 2295 2296 if (d.dragSource != this) { 2297 final int[] touchXY = new int[] { (int) mDragViewVisualCenter[0], 2298 (int) mDragViewVisualCenter[1] }; 2299 onDropExternal(touchXY, d.dragInfo, dropTargetLayout, false, d); 2300 } else if (mDragInfo != null) { 2301 final View cell = mDragInfo.cell; 2302 2303 boolean continueDrop = true; 2304 if (mLauncher.isHotseatLayout(mDragTargetLayout) && d.dragInfo instanceof ItemInfo) { 2305 ItemInfo info = (ItemInfo) d.dragInfo; 2306 if (info.spanX > 1 || info.spanY > 1) { 2307 continueDrop = false; 2308 Toast.makeText(getContext(), R.string.invalid_hotseat_item, 2309 Toast.LENGTH_SHORT).show(); 2310 } 2311 } 2312 2313 if (continueDrop && dropTargetLayout != null) { 2314 // Move internally 2315 boolean hasMovedLayouts = (getParentCellLayoutForView(cell) != dropTargetLayout); 2316 boolean hasMovedIntoHotseat = mLauncher.isHotseatLayout(dropTargetLayout); 2317 long container = hasMovedIntoHotseat ? 2318 LauncherSettings.Favorites.CONTAINER_HOTSEAT : 2319 LauncherSettings.Favorites.CONTAINER_DESKTOP; 2320 int screen = (mTargetCell[0] < 0) ? 2321 mDragInfo.screen : indexOfChild(dropTargetLayout); 2322 int spanX = mDragInfo != null ? mDragInfo.spanX : 1; 2323 int spanY = mDragInfo != null ? mDragInfo.spanY : 1; 2324 // First we find the cell nearest to point at which the item is 2325 // dropped, without any consideration to whether there is an item there. 2326 mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], (int) 2327 mDragViewVisualCenter[1], spanX, spanY, dropTargetLayout, mTargetCell); 2328 // If the item being dropped is a shortcut and the nearest drop 2329 // cell also contains a shortcut, then create a folder with the two shortcuts. 2330 boolean dropInscrollArea = hasMovedLayouts && !hasMovedIntoHotseat; 2331 if (!dropInscrollArea && createUserFolderIfNecessary(cell, container, 2332 dropTargetLayout, mTargetCell, false, d.dragView, null)) { 2333 return; 2334 } 2335 2336 if (addToExistingFolderIfNecessary(cell, dropTargetLayout, mTargetCell, d, false)) { 2337 return; 2338 } 2339 2340 // Aside from the special case where we're dropping a shortcut onto a shortcut, 2341 // we need to find the nearest cell location that is vacant 2342 mTargetCell = findNearestVacantArea((int) mDragViewVisualCenter[0], 2343 (int) mDragViewVisualCenter[1], mDragInfo.spanX, mDragInfo.spanY, cell, 2344 dropTargetLayout, mTargetCell); 2345 2346 if (dropInscrollArea && mState != State.SPRING_LOADED) { 2347 snapToPage(screen); 2348 } 2349 2350 2351 if (mTargetCell[0] >= 0 && mTargetCell[1] >= 0) { 2352 if (hasMovedLayouts) { 2353 // Reparent the view 2354 getParentCellLayoutForView(cell).removeView(cell); 2355 addInScreen(cell, container, screen, mTargetCell[0], mTargetCell[1], 2356 mDragInfo.spanX, mDragInfo.spanY); 2357 } 2358 2359 // update the item's position after drop 2360 final ItemInfo info = (ItemInfo) cell.getTag(); 2361 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) cell.getLayoutParams(); 2362 dropTargetLayout.onMove(cell, mTargetCell[0], mTargetCell[1]); 2363 lp.cellX = mTargetCell[0]; 2364 lp.cellY = mTargetCell[1]; 2365 cell.setId(LauncherModel.getCellLayoutChildId(container, mDragInfo.screen, 2366 mTargetCell[0], mTargetCell[1], mDragInfo.spanX, mDragInfo.spanY)); 2367 2368 if (container != LauncherSettings.Favorites.CONTAINER_HOTSEAT && 2369 cell instanceof LauncherAppWidgetHostView) { 2370 final CellLayout cellLayout = dropTargetLayout; 2371 // We post this call so that the widget has a chance to be placed 2372 // in its final location 2373 2374 final LauncherAppWidgetHostView hostView = (LauncherAppWidgetHostView) cell; 2375 AppWidgetProviderInfo pinfo = hostView.getAppWidgetInfo(); 2376 if (pinfo.resizeMode != AppWidgetProviderInfo.RESIZE_NONE) { 2377 final Runnable resizeRunnable = new Runnable() { 2378 public void run() { 2379 DragLayer dragLayer = mLauncher.getDragLayer(); 2380 dragLayer.addResizeFrame(info, hostView, cellLayout); 2381 } 2382 }; 2383 post(new Runnable() { 2384 public void run() { 2385 if (!isPageMoving()) { 2386 resizeRunnable.run(); 2387 } else { 2388 mDelayedResizeRunnable = resizeRunnable; 2389 } 2390 } 2391 }); 2392 } 2393 } 2394 2395 LauncherModel.moveItemInDatabase(mLauncher, info, container, screen, lp.cellX, 2396 lp.cellY); 2397 } 2398 } 2399 2400 final CellLayout parent = (CellLayout) cell.getParent().getParent(); 2401 2402 // Prepare it to be animated into its new position 2403 // This must be called after the view has been re-parented 2404 final Runnable disableHardwareLayersRunnable = new Runnable() { 2405 @Override 2406 public void run() { 2407 mAnimatingViewIntoPlace = false; 2408 updateChildrenLayersEnabled(); 2409 } 2410 }; 2411 mAnimatingViewIntoPlace = true; 2412 if (d.dragView.hasDrawn()) { 2413 mLauncher.getDragLayer().animateViewIntoPosition(d.dragView, cell, 2414 disableHardwareLayersRunnable); 2415 } else { 2416 cell.setVisibility(VISIBLE); 2417 } 2418 parent.onDropChild(cell); 2419 } 2420 } 2421 2422 public void getViewLocationRelativeToSelf(View v, int[] location) { 2423 getLocationInWindow(location); 2424 int x = location[0]; 2425 int y = location[1]; 2426 2427 v.getLocationInWindow(location); 2428 int vX = location[0]; 2429 int vY = location[1]; 2430 2431 location[0] = vX - x; 2432 location[1] = vY - y; 2433 } 2434 2435 public void onDragEnter(DragObject d) { 2436 if (mDragTargetLayout != null) { 2437 mDragTargetLayout.setIsDragOverlapping(false); 2438 mDragTargetLayout.onDragExit(); 2439 } 2440 mDragTargetLayout = getCurrentDropLayout(); 2441 mDragTargetLayout.setIsDragOverlapping(true); 2442 mDragTargetLayout.onDragEnter(); 2443 2444 // Because we don't have space in the Phone UI (the CellLayouts run to the edge) we 2445 // don't need to show the outlines 2446 if (LauncherApplication.isScreenLarge()) { 2447 showOutlines(); 2448 } 2449 } 2450 2451 private void doDragExit(DragObject d) { 2452 // Clean up folders 2453 cleanupFolderCreation(d); 2454 2455 // Reset the scroll area and previous drag target 2456 onResetScrollArea(); 2457 2458 if (mDragTargetLayout != null) { 2459 mDragTargetLayout.setIsDragOverlapping(false); 2460 mDragTargetLayout.onDragExit(); 2461 } 2462 mLastDragOverView = null; 2463 2464 if (!mIsPageMoving) { 2465 hideOutlines(); 2466 } 2467 } 2468 2469 public void onDragExit(DragObject d) { 2470 doDragExit(d); 2471 } 2472 2473 public DropTarget getDropTargetDelegate(DragObject d) { 2474 return null; 2475 } 2476 2477 /** 2478 * Tests to see if the drop will be accepted by Launcher, and if so, includes additional data 2479 * in the returned structure related to the widgets that match the drop (or a null list if it is 2480 * a shortcut drop). If the drop is not accepted then a null structure is returned. 2481 */ 2482 private Pair<Integer, List<WidgetMimeTypeHandlerData>> validateDrag(DragEvent event) { 2483 final LauncherModel model = mLauncher.getModel(); 2484 final ClipDescription desc = event.getClipDescription(); 2485 final int mimeTypeCount = desc.getMimeTypeCount(); 2486 for (int i = 0; i < mimeTypeCount; ++i) { 2487 final String mimeType = desc.getMimeType(i); 2488 if (mimeType.equals(InstallShortcutReceiver.SHORTCUT_MIMETYPE)) { 2489 return new Pair<Integer, List<WidgetMimeTypeHandlerData>>(i, null); 2490 } else { 2491 final List<WidgetMimeTypeHandlerData> widgets = 2492 model.resolveWidgetsForMimeType(mContext, mimeType); 2493 if (widgets.size() > 0) { 2494 return new Pair<Integer, List<WidgetMimeTypeHandlerData>>(i, widgets); 2495 } 2496 } 2497 } 2498 return null; 2499 } 2500 2501 /** 2502 * Global drag and drop handler 2503 */ 2504 @Override 2505 public boolean onDragEvent(DragEvent event) { 2506 final ClipDescription desc = event.getClipDescription(); 2507 final CellLayout layout = (CellLayout) getChildAt(mCurrentPage); 2508 final int[] pos = new int[2]; 2509 layout.getLocationOnScreen(pos); 2510 // We need to offset the drag coordinates to layout coordinate space 2511 final int x = (int) event.getX() - pos[0]; 2512 final int y = (int) event.getY() - pos[1]; 2513 2514 switch (event.getAction()) { 2515 case DragEvent.ACTION_DRAG_STARTED: { 2516 // Validate this drag 2517 Pair<Integer, List<WidgetMimeTypeHandlerData>> test = validateDrag(event); 2518 if (test != null) { 2519 boolean isShortcut = (test.second == null); 2520 if (isShortcut) { 2521 // Check if we have enough space on this screen to add a new shortcut 2522 if (!layout.findCellForSpan(pos, 1, 1)) { 2523 mLauncher.showOutOfSpaceMessage(); 2524 return false; 2525 } 2526 } 2527 } else { 2528 // Show error message if we couldn't accept any of the items 2529 Toast.makeText(mContext, mContext.getString(R.string.external_drop_widget_error), 2530 Toast.LENGTH_SHORT).show(); 2531 return false; 2532 } 2533 2534 // Create the drag outline 2535 // We need to add extra padding to the bitmap to make room for the glow effect 2536 final Canvas canvas = new Canvas(); 2537 final int bitmapPadding = HolographicOutlineHelper.MAX_OUTER_BLUR_RADIUS; 2538 mDragOutline = createExternalDragOutline(canvas, bitmapPadding); 2539 2540 // Show the current page outlines to indicate that we can accept this drop 2541 showOutlines(); 2542 layout.setIsDragOccuring(true); 2543 layout.onDragEnter(); 2544 layout.visualizeDropLocation(null, mDragOutline, x, y, 1, 1); 2545 2546 return true; 2547 } 2548 case DragEvent.ACTION_DRAG_LOCATION: 2549 // Visualize the drop location 2550 layout.visualizeDropLocation(null, mDragOutline, x, y, 1, 1); 2551 return true; 2552 case DragEvent.ACTION_DROP: { 2553 // Try and add any shortcuts 2554 final LauncherModel model = mLauncher.getModel(); 2555 final ClipData data = event.getClipData(); 2556 2557 // We assume that the mime types are ordered in descending importance of 2558 // representation. So we enumerate the list of mime types and alert the 2559 // user if any widgets can handle the drop. Only the most preferred 2560 // representation will be handled. 2561 pos[0] = x; 2562 pos[1] = y; 2563 Pair<Integer, List<WidgetMimeTypeHandlerData>> test = validateDrag(event); 2564 if (test != null) { 2565 final int index = test.first; 2566 final List<WidgetMimeTypeHandlerData> widgets = test.second; 2567 final boolean isShortcut = (widgets == null); 2568 final String mimeType = desc.getMimeType(index); 2569 if (isShortcut) { 2570 final Intent intent = data.getItemAt(index).getIntent(); 2571 Object info = model.infoFromShortcutIntent(mContext, intent, data.getIcon()); 2572 onDropExternal(new int[] { x, y }, info, layout, false); 2573 } else { 2574 if (widgets.size() == 1) { 2575 // If there is only one item, then go ahead and add and configure 2576 // that widget 2577 final AppWidgetProviderInfo widgetInfo = widgets.get(0).widgetInfo; 2578 final PendingAddWidgetInfo createInfo = 2579 new PendingAddWidgetInfo(widgetInfo, mimeType, data); 2580 mLauncher.addAppWidgetFromDrop(createInfo, 2581 LauncherSettings.Favorites.CONTAINER_DESKTOP, mCurrentPage, null, pos); 2582 } else { 2583 // Show the widget picker dialog if there is more than one widget 2584 // that can handle this data type 2585 final InstallWidgetReceiver.WidgetListAdapter adapter = 2586 new InstallWidgetReceiver.WidgetListAdapter(mLauncher, mimeType, 2587 data, widgets, layout, mCurrentPage, pos); 2588 final AlertDialog.Builder builder = 2589 new AlertDialog.Builder(mContext); 2590 builder.setAdapter(adapter, adapter); 2591 builder.setCancelable(true); 2592 builder.setTitle(mContext.getString( 2593 R.string.external_drop_widget_pick_title)); 2594 builder.setIcon(R.drawable.ic_no_applications); 2595 builder.show(); 2596 } 2597 } 2598 } 2599 return true; 2600 } 2601 case DragEvent.ACTION_DRAG_ENDED: 2602 // Hide the page outlines after the drop 2603 layout.setIsDragOccuring(false); 2604 layout.onDragExit(); 2605 hideOutlines(); 2606 return true; 2607 } 2608 return super.onDragEvent(event); 2609 } 2610 2611 /* 2612 * 2613 * Convert the 2D coordinate xy from the parent View's coordinate space to this CellLayout's 2614 * coordinate space. The argument xy is modified with the return result. 2615 * 2616 */ 2617 void mapPointFromSelfToChild(View v, float[] xy) { 2618 mapPointFromSelfToChild(v, xy, null); 2619 } 2620 2621 /* 2622 * 2623 * Convert the 2D coordinate xy from the parent View's coordinate space to this CellLayout's 2624 * coordinate space. The argument xy is modified with the return result. 2625 * 2626 * if cachedInverseMatrix is not null, this method will just use that matrix instead of 2627 * computing it itself; we use this to avoid redundant matrix inversions in 2628 * findMatchingPageForDragOver 2629 * 2630 */ 2631 void mapPointFromSelfToChild(View v, float[] xy, Matrix cachedInverseMatrix) { 2632 if (cachedInverseMatrix == null) { 2633 v.getMatrix().invert(mTempInverseMatrix); 2634 cachedInverseMatrix = mTempInverseMatrix; 2635 } 2636 xy[0] = xy[0] + mScrollX - v.getLeft(); 2637 xy[1] = xy[1] + mScrollY - v.getTop(); 2638 cachedInverseMatrix.mapPoints(xy); 2639 } 2640 2641 /* 2642 * Maps a point from the Workspace's coordinate system to another sibling view's. (Workspace 2643 * covers the full screen) 2644 */ 2645 void mapPointFromSelfToSibling(View v, float[] xy) { 2646 xy[0] = xy[0] - v.getLeft(); 2647 xy[1] = xy[1] - v.getTop(); 2648 } 2649 2650 /* 2651 * 2652 * Convert the 2D coordinate xy from this CellLayout's coordinate space to 2653 * the parent View's coordinate space. The argument xy is modified with the return result. 2654 * 2655 */ 2656 void mapPointFromChildToSelf(View v, float[] xy) { 2657 v.getMatrix().mapPoints(xy); 2658 xy[0] -= (mScrollX - v.getLeft()); 2659 xy[1] -= (mScrollY - v.getTop()); 2660 } 2661 2662 static private float squaredDistance(float[] point1, float[] point2) { 2663 float distanceX = point1[0] - point2[0]; 2664 float distanceY = point2[1] - point2[1]; 2665 return distanceX * distanceX + distanceY * distanceY; 2666 } 2667 2668 /* 2669 * 2670 * Returns true if the passed CellLayout cl overlaps with dragView 2671 * 2672 */ 2673 boolean overlaps(CellLayout cl, DragView dragView, 2674 int dragViewX, int dragViewY, Matrix cachedInverseMatrix) { 2675 // Transform the coordinates of the item being dragged to the CellLayout's coordinates 2676 final float[] draggedItemTopLeft = mTempDragCoordinates; 2677 draggedItemTopLeft[0] = dragViewX; 2678 draggedItemTopLeft[1] = dragViewY; 2679 final float[] draggedItemBottomRight = mTempDragBottomRightCoordinates; 2680 draggedItemBottomRight[0] = draggedItemTopLeft[0] + dragView.getDragRegionWidth(); 2681 draggedItemBottomRight[1] = draggedItemTopLeft[1] + dragView.getDragRegionHeight(); 2682 2683 // Transform the dragged item's top left coordinates 2684 // to the CellLayout's local coordinates 2685 mapPointFromSelfToChild(cl, draggedItemTopLeft, cachedInverseMatrix); 2686 float overlapRegionLeft = Math.max(0f, draggedItemTopLeft[0]); 2687 float overlapRegionTop = Math.max(0f, draggedItemTopLeft[1]); 2688 2689 if (overlapRegionLeft <= cl.getWidth() && overlapRegionTop >= 0) { 2690 // Transform the dragged item's bottom right coordinates 2691 // to the CellLayout's local coordinates 2692 mapPointFromSelfToChild(cl, draggedItemBottomRight, cachedInverseMatrix); 2693 float overlapRegionRight = Math.min(cl.getWidth(), draggedItemBottomRight[0]); 2694 float overlapRegionBottom = Math.min(cl.getHeight(), draggedItemBottomRight[1]); 2695 2696 if (overlapRegionRight >= 0 && overlapRegionBottom <= cl.getHeight()) { 2697 float overlap = (overlapRegionRight - overlapRegionLeft) * 2698 (overlapRegionBottom - overlapRegionTop); 2699 if (overlap > 0) { 2700 return true; 2701 } 2702 } 2703 } 2704 return false; 2705 } 2706 2707 /* 2708 * 2709 * This method returns the CellLayout that is currently being dragged to. In order to drag 2710 * to a CellLayout, either the touch point must be directly over the CellLayout, or as a second 2711 * strategy, we see if the dragView is overlapping any CellLayout and choose the closest one 2712 * 2713 * Return null if no CellLayout is currently being dragged over 2714 * 2715 */ 2716 private CellLayout findMatchingPageForDragOver( 2717 DragView dragView, float originX, float originY, boolean exact) { 2718 // We loop through all the screens (ie CellLayouts) and see which ones overlap 2719 // with the item being dragged and then choose the one that's closest to the touch point 2720 final int screenCount = getChildCount(); 2721 CellLayout bestMatchingScreen = null; 2722 float smallestDistSoFar = Float.MAX_VALUE; 2723 2724 for (int i = 0; i < screenCount; i++) { 2725 CellLayout cl = (CellLayout) getChildAt(i); 2726 2727 final float[] touchXy = {originX, originY}; 2728 // Transform the touch coordinates to the CellLayout's local coordinates 2729 // If the touch point is within the bounds of the cell layout, we can return immediately 2730 cl.getMatrix().invert(mTempInverseMatrix); 2731 mapPointFromSelfToChild(cl, touchXy, mTempInverseMatrix); 2732 2733 if (touchXy[0] >= 0 && touchXy[0] <= cl.getWidth() && 2734 touchXy[1] >= 0 && touchXy[1] <= cl.getHeight()) { 2735 return cl; 2736 } 2737 2738 if (!exact && overlaps(cl, dragView, (int) originX, (int) originY, mTempInverseMatrix)) { 2739 // Get the center of the cell layout in screen coordinates 2740 final float[] cellLayoutCenter = mTempCellLayoutCenterCoordinates; 2741 cellLayoutCenter[0] = cl.getWidth()/2; 2742 cellLayoutCenter[1] = cl.getHeight()/2; 2743 mapPointFromChildToSelf(cl, cellLayoutCenter); 2744 2745 touchXy[0] = originX; 2746 touchXy[1] = originY; 2747 2748 // Calculate the distance between the center of the CellLayout 2749 // and the touch point 2750 float dist = squaredDistance(touchXy, cellLayoutCenter); 2751 2752 if (dist < smallestDistSoFar) { 2753 smallestDistSoFar = dist; 2754 bestMatchingScreen = cl; 2755 } 2756 } 2757 } 2758 return bestMatchingScreen; 2759 } 2760 2761 // This is used to compute the visual center of the dragView. This point is then 2762 // used to visualize drop locations and determine where to drop an item. The idea is that 2763 // the visual center represents the user's interpretation of where the item is, and hence 2764 // is the appropriate point to use when determining drop location. 2765 private float[] getDragViewVisualCenter(int x, int y, int xOffset, int yOffset, 2766 DragView dragView, float[] recycle) { 2767 float res[]; 2768 if (recycle == null) { 2769 res = new float[2]; 2770 } else { 2771 res = recycle; 2772 } 2773 2774 // First off, the drag view has been shifted in a way that is not represented in the 2775 // x and y values or the x/yOffsets. Here we account for that shift. 2776 x += getResources().getDimensionPixelSize(R.dimen.dragViewOffsetX); 2777 y += getResources().getDimensionPixelSize(R.dimen.dragViewOffsetY); 2778 2779 // These represent the visual top and left of drag view if a dragRect was provided. 2780 // If a dragRect was not provided, then they correspond to the actual view left and 2781 // top, as the dragRect is in that case taken to be the entire dragView. 2782 // R.dimen.dragViewOffsetY. 2783 int left = x - xOffset; 2784 int top = y - yOffset; 2785 2786 // In order to find the visual center, we shift by half the dragRect 2787 res[0] = left + dragView.getDragRegion().width() / 2; 2788 res[1] = top + dragView.getDragRegion().height() / 2; 2789 2790 return res; 2791 } 2792 2793 public void onDragOver(DragObject d) { 2794 // Skip drag over events while we are dragging over side pages 2795 if (mInScrollArea) return; 2796 if (mIsSwitchingState) return; 2797 2798 Rect r = new Rect(); 2799 CellLayout layout = null; 2800 ItemInfo item = (ItemInfo) d.dragInfo; 2801 2802 // Ensure that we have proper spans for the item that we are dropping 2803 if (item.spanX < 0 || item.spanY < 0) throw new RuntimeException("Improper spans found"); 2804 mDragViewVisualCenter = getDragViewVisualCenter(d.x, d.y, d.xOffset, d.yOffset, 2805 d.dragView, mDragViewVisualCenter); 2806 2807 // Identify whether we have dragged over a side page 2808 if (isSmall()) { 2809 if (mLauncher.getHotseat() != null) { 2810 mLauncher.getHotseat().getHitRect(r); 2811 if (r.contains(d.x, d.y)) { 2812 layout = mLauncher.getHotseat().getLayout(); 2813 } 2814 } 2815 if (layout == null) { 2816 layout = findMatchingPageForDragOver(d.dragView, mDragViewVisualCenter[0], 2817 mDragViewVisualCenter[1], true); 2818 } 2819 if (layout != mDragTargetLayout) { 2820 // Cancel all intermediate folder states 2821 cleanupFolderCreation(d); 2822 2823 if (mDragTargetLayout != null) { 2824 mDragTargetLayout.setIsDragOverlapping(false); 2825 mDragTargetLayout.onDragExit(); 2826 } 2827 mDragTargetLayout = layout; 2828 if (mDragTargetLayout != null) { 2829 mDragTargetLayout.setIsDragOverlapping(true); 2830 mDragTargetLayout.onDragEnter(); 2831 } else { 2832 mLastDragOverView = null; 2833 } 2834 2835 boolean isInSpringLoadedMode = (mState == State.SPRING_LOADED); 2836 if (isInSpringLoadedMode) { 2837 if (mLauncher.isHotseatLayout(layout)) { 2838 mSpringLoadedDragController.cancel(); 2839 } else { 2840 mSpringLoadedDragController.setAlarm(mDragTargetLayout); 2841 } 2842 } 2843 } 2844 } else { 2845 // Test to see if we are over the hotseat otherwise just use the current page 2846 if (mLauncher.getHotseat() != null) { 2847 mLauncher.getHotseat().getHitRect(r); 2848 if (r.contains(d.x, d.y)) { 2849 layout = mLauncher.getHotseat().getLayout(); 2850 } 2851 } 2852 if (layout == null) { 2853 layout = getCurrentDropLayout(); 2854 } 2855 if (layout != mDragTargetLayout) { 2856 if (mDragTargetLayout != null) { 2857 mDragTargetLayout.setIsDragOverlapping(false); 2858 mDragTargetLayout.onDragExit(); 2859 } 2860 mDragTargetLayout = layout; 2861 mDragTargetLayout.setIsDragOverlapping(true); 2862 mDragTargetLayout.onDragEnter(); 2863 } 2864 } 2865 2866 // Handle the drag over 2867 if (mDragTargetLayout != null) { 2868 final View child = (mDragInfo == null) ? null : mDragInfo.cell; 2869 2870 // We want the point to be mapped to the dragTarget. 2871 if (mLauncher.isHotseatLayout(mDragTargetLayout)) { 2872 mapPointFromSelfToSibling(mLauncher.getHotseat(), mDragViewVisualCenter); 2873 } else { 2874 mapPointFromSelfToChild(mDragTargetLayout, mDragViewVisualCenter, null); 2875 } 2876 ItemInfo info = (ItemInfo) d.dragInfo; 2877 2878 mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], 2879 (int) mDragViewVisualCenter[1], 1, 1, mDragTargetLayout, mTargetCell); 2880 final View dragOverView = mDragTargetLayout.getChildAt(mTargetCell[0], 2881 mTargetCell[1]); 2882 2883 boolean userFolderPending = willCreateUserFolder(info, mDragTargetLayout, 2884 mTargetCell, false); 2885 boolean isOverFolder = dragOverView instanceof FolderIcon; 2886 if (dragOverView != mLastDragOverView) { 2887 cancelFolderCreation(); 2888 if (mLastDragOverView != null && mLastDragOverView instanceof FolderIcon) { 2889 ((FolderIcon) mLastDragOverView).onDragExit(d.dragInfo); 2890 } 2891 } 2892 2893 if (userFolderPending && dragOverView != mLastDragOverView) { 2894 mFolderCreationAlarm.setOnAlarmListener(new 2895 FolderCreationAlarmListener(mDragTargetLayout, mTargetCell[0], mTargetCell[1])); 2896 mFolderCreationAlarm.setAlarm(FOLDER_CREATION_TIMEOUT); 2897 } 2898 2899 if (dragOverView != mLastDragOverView && isOverFolder) { 2900 ((FolderIcon) dragOverView).onDragEnter(d.dragInfo); 2901 if (mDragTargetLayout != null) { 2902 mDragTargetLayout.clearDragOutlines(); 2903 } 2904 } 2905 mLastDragOverView = dragOverView; 2906 2907 if (!mCreateUserFolderOnDrop && !isOverFolder) { 2908 mDragTargetLayout.visualizeDropLocation(child, mDragOutline, 2909 (int) mDragViewVisualCenter[0], (int) mDragViewVisualCenter[1], 2910 item.spanX, item.spanY); 2911 } 2912 } 2913 } 2914 2915 private void cleanupFolderCreation(DragObject d) { 2916 if (mDragFolderRingAnimator != null && mCreateUserFolderOnDrop) { 2917 mDragFolderRingAnimator.animateToNaturalState(); 2918 } 2919 if (mLastDragOverView != null && mLastDragOverView instanceof FolderIcon) { 2920 if (d != null) { 2921 ((FolderIcon) mLastDragOverView).onDragExit(d.dragInfo); 2922 } 2923 } 2924 mFolderCreationAlarm.cancelAlarm(); 2925 } 2926 2927 private void cancelFolderCreation() { 2928 if (mDragFolderRingAnimator != null && mCreateUserFolderOnDrop) { 2929 mDragFolderRingAnimator.animateToNaturalState(); 2930 } 2931 mCreateUserFolderOnDrop = false; 2932 mFolderCreationAlarm.cancelAlarm(); 2933 } 2934 2935 class FolderCreationAlarmListener implements OnAlarmListener { 2936 CellLayout layout; 2937 int cellX; 2938 int cellY; 2939 2940 public FolderCreationAlarmListener(CellLayout layout, int cellX, int cellY) { 2941 this.layout = layout; 2942 this.cellX = cellX; 2943 this.cellY = cellY; 2944 } 2945 2946 public void onAlarm(Alarm alarm) { 2947 if (mDragFolderRingAnimator == null) { 2948 mDragFolderRingAnimator = new FolderRingAnimator(mLauncher, null); 2949 } 2950 mDragFolderRingAnimator.setCell(cellX, cellY); 2951 mDragFolderRingAnimator.setCellLayout(layout); 2952 mDragFolderRingAnimator.animateToAcceptState(); 2953 layout.showFolderAccept(mDragFolderRingAnimator); 2954 layout.clearDragOutlines(); 2955 mCreateUserFolderOnDrop = true; 2956 } 2957 } 2958 2959 @Override 2960 public void getHitRect(Rect outRect) { 2961 // We want the workspace to have the whole area of the display (it will find the correct 2962 // cell layout to drop to in the existing drag/drop logic. 2963 final Display d = mLauncher.getWindowManager().getDefaultDisplay(); 2964 outRect.set(0, 0, d.getWidth(), d.getHeight()); 2965 } 2966 2967 /** 2968 * Add the item specified by dragInfo to the given layout. 2969 * @return true if successful 2970 */ 2971 public boolean addExternalItemToScreen(ItemInfo dragInfo, CellLayout layout) { 2972 if (layout.findCellForSpan(mTempEstimate, dragInfo.spanX, dragInfo.spanY)) { 2973 onDropExternal(dragInfo.dropPos, (ItemInfo) dragInfo, (CellLayout) layout, false); 2974 return true; 2975 } 2976 mLauncher.showOutOfSpaceMessage(); 2977 return false; 2978 } 2979 2980 private void onDropExternal(int[] touchXY, Object dragInfo, 2981 CellLayout cellLayout, boolean insertAtFirst) { 2982 onDropExternal(touchXY, dragInfo, cellLayout, insertAtFirst, null); 2983 } 2984 2985 /** 2986 * Drop an item that didn't originate on one of the workspace screens. 2987 * It may have come from Launcher (e.g. from all apps or customize), or it may have 2988 * come from another app altogether. 2989 * 2990 * NOTE: This can also be called when we are outside of a drag event, when we want 2991 * to add an item to one of the workspace screens. 2992 */ 2993 private void onDropExternal(final int[] touchXY, final Object dragInfo, 2994 final CellLayout cellLayout, boolean insertAtFirst, DragObject d) { 2995 final Runnable exitSpringLoadedRunnable = new Runnable() { 2996 @Override 2997 public void run() { 2998 mLauncher.exitSpringLoadedDragModeDelayed(false); 2999 } 3000 }; 3001 3002 ItemInfo info = (ItemInfo) dragInfo; 3003 int spanX = info.spanX; 3004 int spanY = info.spanY; 3005 if (mDragInfo != null) { 3006 spanX = mDragInfo.spanX; 3007 spanY = mDragInfo.spanY; 3008 } 3009 3010 final long container = mLauncher.isHotseatLayout(cellLayout) ? 3011 LauncherSettings.Favorites.CONTAINER_HOTSEAT : 3012 LauncherSettings.Favorites.CONTAINER_DESKTOP; 3013 final int screen = indexOfChild(cellLayout); 3014 if (!mLauncher.isHotseatLayout(cellLayout) && screen != mCurrentPage 3015 && mState != State.SPRING_LOADED) { 3016 snapToPage(screen); 3017 } 3018 3019 if (info instanceof PendingAddItemInfo) { 3020 final PendingAddItemInfo pendingInfo = (PendingAddItemInfo) dragInfo; 3021 3022 mTargetCell = findNearestVacantArea(touchXY[0], touchXY[1], spanX, spanY, null, 3023 cellLayout, mTargetCell); 3024 Runnable onAnimationCompleteRunnable = new Runnable() { 3025 @Override 3026 public void run() { 3027 // When dragging and dropping from customization tray, we deal with creating 3028 // widgets/shortcuts/folders in a slightly different way 3029 switch (pendingInfo.itemType) { 3030 case LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET: 3031 mLauncher.addAppWidgetFromDrop((PendingAddWidgetInfo) pendingInfo, 3032 container, screen, mTargetCell, null); 3033 break; 3034 case LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT: 3035 mLauncher.processShortcutFromDrop(pendingInfo.componentName, 3036 container, screen, mTargetCell, null); 3037 break; 3038 default: 3039 throw new IllegalStateException("Unknown item type: " + 3040 pendingInfo.itemType); 3041 } 3042 cellLayout.onDragExit(); 3043 } 3044 }; 3045 3046 // Now we animate the dragView, (ie. the widget or shortcut preview) into its final 3047 // location and size on the home screen. 3048 int loc[] = new int[2]; 3049 cellLayout.cellToPoint(mTargetCell[0], mTargetCell[1], loc); 3050 3051 RectF r = new RectF(); 3052 cellLayout.cellToRect(mTargetCell[0], mTargetCell[1], spanX, spanY, r); 3053 setFinalTransitionTransform(cellLayout); 3054 float cellLayoutScale = 3055 mLauncher.getDragLayer().getDescendantCoordRelativeToSelf(cellLayout, loc); 3056 resetTransitionTransform(cellLayout); 3057 3058 float dragViewScale = r.width() / d.dragView.getMeasuredWidth(); 3059 // The animation will scale the dragView about its center, so we need to center about 3060 // the final location. 3061 loc[0] -= (d.dragView.getMeasuredWidth() - cellLayoutScale * r.width()) / 2; 3062 loc[1] -= (d.dragView.getMeasuredHeight() - cellLayoutScale * r.height()) / 2; 3063 3064 mLauncher.getDragLayer().animateViewIntoPosition(d.dragView, loc, 3065 dragViewScale * cellLayoutScale, onAnimationCompleteRunnable); 3066 } else { 3067 // This is for other drag/drop cases, like dragging from All Apps 3068 View view = null; 3069 3070 switch (info.itemType) { 3071 case LauncherSettings.Favorites.ITEM_TYPE_APPLICATION: 3072 case LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT: 3073 if (info.container == NO_ID && info instanceof ApplicationInfo) { 3074 // Came from all apps -- make a copy 3075 info = new ShortcutInfo((ApplicationInfo) info); 3076 } 3077 view = mLauncher.createShortcut(R.layout.application, cellLayout, 3078 (ShortcutInfo) info); 3079 break; 3080 case LauncherSettings.Favorites.ITEM_TYPE_FOLDER: 3081 view = FolderIcon.fromXml(R.layout.folder_icon, mLauncher, cellLayout, 3082 (FolderInfo) info, mIconCache); 3083 break; 3084 default: 3085 throw new IllegalStateException("Unknown item type: " + info.itemType); 3086 } 3087 3088 // First we find the cell nearest to point at which the item is 3089 // dropped, without any consideration to whether there is an item there. 3090 if (touchXY != null) { 3091 mTargetCell = findNearestArea((int) touchXY[0], (int) touchXY[1], spanX, spanY, 3092 cellLayout, mTargetCell); 3093 d.postAnimationRunnable = exitSpringLoadedRunnable; 3094 if (createUserFolderIfNecessary(view, container, cellLayout, mTargetCell, true, 3095 d.dragView, d.postAnimationRunnable)) { 3096 return; 3097 } 3098 if (addToExistingFolderIfNecessary(view, cellLayout, mTargetCell, d, true)) { 3099 return; 3100 } 3101 } 3102 3103 if (touchXY != null) { 3104 // when dragging and dropping, just find the closest free spot 3105 mTargetCell = findNearestVacantArea(touchXY[0], touchXY[1], 1, 1, null, 3106 cellLayout, mTargetCell); 3107 } else { 3108 cellLayout.findCellForSpan(mTargetCell, 1, 1); 3109 } 3110 addInScreen(view, container, screen, mTargetCell[0], mTargetCell[1], info.spanX, 3111 info.spanY, insertAtFirst); 3112 cellLayout.onDropChild(view); 3113 cellLayout.animateDrop(); 3114 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) view.getLayoutParams(); 3115 cellLayout.getChildrenLayout().measureChild(view); 3116 3117 LauncherModel.addOrMoveItemInDatabase(mLauncher, info, container, screen, 3118 lp.cellX, lp.cellY); 3119 3120 if (d.dragView != null) { 3121 // We wrap the animation call in the temporary set and reset of the current 3122 // cellLayout to its final transform -- this means we animate the drag view to 3123 // the correct final location. 3124 setFinalTransitionTransform(cellLayout); 3125 mLauncher.getDragLayer().animateViewIntoPosition(d.dragView, view, 3126 exitSpringLoadedRunnable); 3127 resetTransitionTransform(cellLayout); 3128 } 3129 } 3130 } 3131 3132 public void setFinalTransitionTransform(CellLayout layout) { 3133 if (isSwitchingState()) { 3134 int index = indexOfChild(layout); 3135 mCurrentScaleX = layout.getScaleX(); 3136 mCurrentScaleY = layout.getScaleY(); 3137 mCurrentTranslationX = layout.getTranslationX(); 3138 mCurrentTranslationY = layout.getTranslationY(); 3139 mCurrentRotationY = layout.getRotationY(); 3140 layout.setScaleX(mNewScaleXs[index]); 3141 layout.setScaleY(mNewScaleYs[index]); 3142 layout.setTranslationX(mNewTranslationXs[index]); 3143 layout.setTranslationY(mNewTranslationYs[index]); 3144 layout.setRotationY(mNewRotationYs[index]); 3145 } 3146 } 3147 public void resetTransitionTransform(CellLayout layout) { 3148 if (isSwitchingState()) { 3149 mCurrentScaleX = layout.getScaleX(); 3150 mCurrentScaleY = layout.getScaleY(); 3151 mCurrentTranslationX = layout.getTranslationX(); 3152 mCurrentTranslationY = layout.getTranslationY(); 3153 mCurrentRotationY = layout.getRotationY(); 3154 layout.setScaleX(mCurrentScaleX); 3155 layout.setScaleY(mCurrentScaleY); 3156 layout.setTranslationX(mCurrentTranslationX); 3157 layout.setTranslationY(mCurrentTranslationY); 3158 layout.setRotationY(mCurrentRotationY); 3159 } 3160 } 3161 3162 /** 3163 * Return the current {@link CellLayout}, correctly picking the destination 3164 * screen while a scroll is in progress. 3165 */ 3166 public CellLayout getCurrentDropLayout() { 3167 return (CellLayout) getChildAt(mNextPage == INVALID_PAGE ? mCurrentPage : mNextPage); 3168 } 3169 3170 /** 3171 * Return the current CellInfo describing our current drag; this method exists 3172 * so that Launcher can sync this object with the correct info when the activity is created/ 3173 * destroyed 3174 * 3175 */ 3176 public CellLayout.CellInfo getDragInfo() { 3177 return mDragInfo; 3178 } 3179 3180 /** 3181 * Calculate the nearest cell where the given object would be dropped. 3182 * 3183 * pixelX and pixelY should be in the coordinate system of layout 3184 */ 3185 private int[] findNearestVacantArea(int pixelX, int pixelY, 3186 int spanX, int spanY, View ignoreView, CellLayout layout, int[] recycle) { 3187 return layout.findNearestVacantArea( 3188 pixelX, pixelY, spanX, spanY, ignoreView, recycle); 3189 } 3190 3191 /** 3192 * Calculate the nearest cell where the given object would be dropped. 3193 * 3194 * pixelX and pixelY should be in the coordinate system of layout 3195 */ 3196 private int[] findNearestArea(int pixelX, int pixelY, 3197 int spanX, int spanY, CellLayout layout, int[] recycle) { 3198 return layout.findNearestArea( 3199 pixelX, pixelY, spanX, spanY, recycle); 3200 } 3201 3202 void setup(Launcher launcher, DragController dragController) { 3203 mLauncher = launcher; 3204 mSpringLoadedDragController = new SpringLoadedDragController(mLauncher); 3205 mDragController = dragController; 3206 3207 // hardware layers on children are enabled on startup, but should be disabled until 3208 // needed 3209 updateChildrenLayersEnabled(); 3210 setWallpaperDimension(); 3211 } 3212 3213 /** 3214 * Called at the end of a drag which originated on the workspace. 3215 */ 3216 public void onDropCompleted(View target, DragObject d, boolean success) { 3217 if (success) { 3218 if (target != this) { 3219 if (mDragInfo != null) { 3220 getParentCellLayoutForView(mDragInfo.cell).removeView(mDragInfo.cell); 3221 if (mDragInfo.cell instanceof DropTarget) { 3222 mDragController.removeDropTarget((DropTarget) mDragInfo.cell); 3223 } 3224 } 3225 } 3226 } else if (mDragInfo != null) { 3227 // NOTE: When 'success' is true, onDragExit is called by the DragController before 3228 // calling onDropCompleted(). We call it ourselves here, but maybe this should be 3229 // moved into DragController.cancelDrag(). 3230 doDragExit(null); 3231 CellLayout cellLayout; 3232 if (mLauncher.isHotseatLayout(target)) { 3233 cellLayout = mLauncher.getHotseat().getLayout(); 3234 } else { 3235 cellLayout = (CellLayout) getChildAt(mDragInfo.screen); 3236 } 3237 cellLayout.onDropChild(mDragInfo.cell); 3238 } 3239 mDragOutline = null; 3240 mDragInfo = null; 3241 } 3242 3243 public boolean isDropEnabled() { 3244 return true; 3245 } 3246 3247 @Override 3248 protected void onRestoreInstanceState(Parcelable state) { 3249 super.onRestoreInstanceState(state); 3250 Launcher.setScreen(mCurrentPage); 3251 } 3252 3253 @Override 3254 public void scrollLeft() { 3255 if (!isSmall() && !mIsSwitchingState) { 3256 super.scrollLeft(); 3257 } 3258 Folder openFolder = getOpenFolder(); 3259 if (openFolder != null) { 3260 openFolder.completeDragExit(); 3261 } 3262 } 3263 3264 @Override 3265 public void scrollRight() { 3266 if (!isSmall() && !mIsSwitchingState) { 3267 super.scrollRight(); 3268 } 3269 Folder openFolder = getOpenFolder(); 3270 if (openFolder != null) { 3271 openFolder.completeDragExit(); 3272 } 3273 } 3274 3275 @Override 3276 public void onEnterScrollArea(int direction) { 3277 if (!isSmall() && !mIsSwitchingState) { 3278 mInScrollArea = true; 3279 3280 final int page = mCurrentPage + (direction == DragController.SCROLL_LEFT ? -1 : 1); 3281 final CellLayout layout = (CellLayout) getChildAt(page); 3282 cancelFolderCreation(); 3283 3284 if (layout != null) { 3285 // Exit the current layout and mark the overlapping layout 3286 if (mDragTargetLayout != null) { 3287 mDragTargetLayout.setIsDragOverlapping(false); 3288 mDragTargetLayout.onDragExit(); 3289 } 3290 mDragTargetLayout = layout; 3291 mDragTargetLayout.setIsDragOverlapping(true); 3292 3293 // Workspace is responsible for drawing the edge glow on adjacent pages, 3294 // so we need to redraw the workspace when this may have changed. 3295 invalidate(); 3296 } 3297 } 3298 } 3299 3300 @Override 3301 public void onExitScrollArea() { 3302 if (mInScrollArea) { 3303 if (mDragTargetLayout != null) { 3304 // Unmark the overlapping layout and re-enter the current layout 3305 mDragTargetLayout.setIsDragOverlapping(false); 3306 mDragTargetLayout = getCurrentDropLayout(); 3307 mDragTargetLayout.onDragEnter(); 3308 3309 // Workspace is responsible for drawing the edge glow on adjacent pages, 3310 // so we need to redraw the workspace when this may have changed. 3311 invalidate(); 3312 } 3313 mInScrollArea = false; 3314 } 3315 } 3316 3317 private void onResetScrollArea() { 3318 if (mDragTargetLayout != null) { 3319 // Unmark the overlapping layout 3320 mDragTargetLayout.setIsDragOverlapping(false); 3321 3322 // Workspace is responsible for drawing the edge glow on adjacent pages, 3323 // so we need to redraw the workspace when this may have changed. 3324 invalidate(); 3325 } 3326 mInScrollArea = false; 3327 } 3328 3329 /** 3330 * Returns a specific CellLayout 3331 */ 3332 CellLayout getParentCellLayoutForView(View v) { 3333 ArrayList<CellLayout> layouts = getWorkspaceAndHotseatCellLayouts(); 3334 for (CellLayout layout : layouts) { 3335 if (layout.getChildrenLayout().indexOfChild(v) > -1) { 3336 return layout; 3337 } 3338 } 3339 return null; 3340 } 3341 3342 /** 3343 * Returns a list of all the CellLayouts in the workspace. 3344 */ 3345 ArrayList<CellLayout> getWorkspaceAndHotseatCellLayouts() { 3346 ArrayList<CellLayout> layouts = new ArrayList<CellLayout>(); 3347 int screenCount = getChildCount(); 3348 for (int screen = 0; screen < screenCount; screen++) { 3349 layouts.add(((CellLayout) getChildAt(screen))); 3350 } 3351 if (mLauncher.getHotseat() != null) { 3352 layouts.add(mLauncher.getHotseat().getLayout()); 3353 } 3354 return layouts; 3355 } 3356 3357 /** 3358 * We should only use this to search for specific children. Do not use this method to modify 3359 * CellLayoutChildren directly. 3360 */ 3361 ArrayList<CellLayoutChildren> getWorkspaceAndHotseatCellLayoutChildren() { 3362 ArrayList<CellLayoutChildren> childrenLayouts = new ArrayList<CellLayoutChildren>(); 3363 int screenCount = getChildCount(); 3364 for (int screen = 0; screen < screenCount; screen++) { 3365 childrenLayouts.add(((CellLayout) getChildAt(screen)).getChildrenLayout()); 3366 } 3367 if (mLauncher.getHotseat() != null) { 3368 childrenLayouts.add(mLauncher.getHotseat().getLayout().getChildrenLayout()); 3369 } 3370 return childrenLayouts; 3371 } 3372 3373 public Folder getFolderForTag(Object tag) { 3374 ArrayList<CellLayoutChildren> childrenLayouts = getWorkspaceAndHotseatCellLayoutChildren(); 3375 for (CellLayoutChildren layout: childrenLayouts) { 3376 int count = layout.getChildCount(); 3377 for (int i = 0; i < count; i++) { 3378 View child = layout.getChildAt(i); 3379 if (child instanceof Folder) { 3380 Folder f = (Folder) child; 3381 if (f.getInfo() == tag && f.getInfo().opened) { 3382 return f; 3383 } 3384 } 3385 } 3386 } 3387 return null; 3388 } 3389 3390 public View getViewForTag(Object tag) { 3391 ArrayList<CellLayoutChildren> childrenLayouts = getWorkspaceAndHotseatCellLayoutChildren(); 3392 for (CellLayoutChildren layout: childrenLayouts) { 3393 int count = layout.getChildCount(); 3394 for (int i = 0; i < count; i++) { 3395 View child = layout.getChildAt(i); 3396 if (child.getTag() == tag) { 3397 return child; 3398 } 3399 } 3400 } 3401 return null; 3402 } 3403 3404 void clearDropTargets() { 3405 ArrayList<CellLayoutChildren> childrenLayouts = getWorkspaceAndHotseatCellLayoutChildren(); 3406 for (CellLayoutChildren layout: childrenLayouts) { 3407 int childCount = layout.getChildCount(); 3408 for (int j = 0; j < childCount; j++) { 3409 View v = layout.getChildAt(j); 3410 if (v instanceof DropTarget) { 3411 mDragController.removeDropTarget((DropTarget) v); 3412 } 3413 } 3414 } 3415 } 3416 3417 void removeItems(final ArrayList<ApplicationInfo> apps) { 3418 final AppWidgetManager widgets = AppWidgetManager.getInstance(getContext()); 3419 3420 final HashSet<String> packageNames = new HashSet<String>(); 3421 final int appCount = apps.size(); 3422 for (int i = 0; i < appCount; i++) { 3423 packageNames.add(apps.get(i).componentName.getPackageName()); 3424 } 3425 3426 ArrayList<CellLayout> cellLayouts = getWorkspaceAndHotseatCellLayouts(); 3427 for (final CellLayout layoutParent: cellLayouts) { 3428 final ViewGroup layout = layoutParent.getChildrenLayout(); 3429 3430 // Avoid ANRs by treating each screen separately 3431 post(new Runnable() { 3432 public void run() { 3433 final ArrayList<View> childrenToRemove = new ArrayList<View>(); 3434 childrenToRemove.clear(); 3435 3436 int childCount = layout.getChildCount(); 3437 for (int j = 0; j < childCount; j++) { 3438 final View view = layout.getChildAt(j); 3439 Object tag = view.getTag(); 3440 3441 if (tag instanceof ShortcutInfo) { 3442 final ShortcutInfo info = (ShortcutInfo) tag; 3443 final Intent intent = info.intent; 3444 final ComponentName name = intent.getComponent(); 3445 3446 if (Intent.ACTION_MAIN.equals(intent.getAction()) && name != null) { 3447 for (String packageName: packageNames) { 3448 if (packageName.equals(name.getPackageName())) { 3449 LauncherModel.deleteItemFromDatabase(mLauncher, info); 3450 childrenToRemove.add(view); 3451 } 3452 } 3453 } 3454 } else if (tag instanceof FolderInfo) { 3455 final FolderInfo info = (FolderInfo) tag; 3456 final ArrayList<ShortcutInfo> contents = info.contents; 3457 final int contentsCount = contents.size(); 3458 final ArrayList<ShortcutInfo> appsToRemoveFromFolder = 3459 new ArrayList<ShortcutInfo>(); 3460 3461 for (int k = 0; k < contentsCount; k++) { 3462 final ShortcutInfo appInfo = contents.get(k); 3463 final Intent intent = appInfo.intent; 3464 final ComponentName name = intent.getComponent(); 3465 3466 if (Intent.ACTION_MAIN.equals(intent.getAction()) && name != null) { 3467 for (String packageName: packageNames) { 3468 if (packageName.equals(name.getPackageName())) { 3469 appsToRemoveFromFolder.add(appInfo); 3470 } 3471 } 3472 } 3473 } 3474 for (ShortcutInfo item: appsToRemoveFromFolder) { 3475 info.remove(item); 3476 LauncherModel.deleteItemFromDatabase(mLauncher, item); 3477 } 3478 } else if (tag instanceof LauncherAppWidgetInfo) { 3479 final LauncherAppWidgetInfo info = (LauncherAppWidgetInfo) tag; 3480 final AppWidgetProviderInfo provider = 3481 widgets.getAppWidgetInfo(info.appWidgetId); 3482 if (provider != null) { 3483 for (String packageName: packageNames) { 3484 if (packageName.equals(provider.provider.getPackageName())) { 3485 LauncherModel.deleteItemFromDatabase(mLauncher, info); 3486 childrenToRemove.add(view); 3487 } 3488 } 3489 } 3490 } 3491 } 3492 3493 childCount = childrenToRemove.size(); 3494 for (int j = 0; j < childCount; j++) { 3495 View child = childrenToRemove.get(j); 3496 // Note: We can not remove the view directly from CellLayoutChildren as this 3497 // does not re-mark the spaces as unoccupied. 3498 layoutParent.removeViewInLayout(child); 3499 if (child instanceof DropTarget) { 3500 mDragController.removeDropTarget((DropTarget)child); 3501 } 3502 } 3503 3504 if (childCount > 0) { 3505 layout.requestLayout(); 3506 layout.invalidate(); 3507 } 3508 } 3509 }); 3510 } 3511 } 3512 3513 void updateShortcuts(ArrayList<ApplicationInfo> apps) { 3514 ArrayList<CellLayoutChildren> childrenLayouts = getWorkspaceAndHotseatCellLayoutChildren(); 3515 for (CellLayoutChildren layout: childrenLayouts) { 3516 int childCount = layout.getChildCount(); 3517 for (int j = 0; j < childCount; j++) { 3518 final View view = layout.getChildAt(j); 3519 Object tag = view.getTag(); 3520 if (tag instanceof ShortcutInfo) { 3521 ShortcutInfo info = (ShortcutInfo)tag; 3522 // We need to check for ACTION_MAIN otherwise getComponent() might 3523 // return null for some shortcuts (for instance, for shortcuts to 3524 // web pages.) 3525 final Intent intent = info.intent; 3526 final ComponentName name = intent.getComponent(); 3527 if (info.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPLICATION && 3528 Intent.ACTION_MAIN.equals(intent.getAction()) && name != null) { 3529 final int appCount = apps.size(); 3530 for (int k = 0; k < appCount; k++) { 3531 ApplicationInfo app = apps.get(k); 3532 if (app.componentName.equals(name)) { 3533 info.setIcon(mIconCache.getIcon(info.intent)); 3534 ((TextView)view).setCompoundDrawablesWithIntrinsicBounds(null, 3535 new FastBitmapDrawable(info.getIcon(mIconCache)), 3536 null, null); 3537 } 3538 } 3539 } 3540 } 3541 } 3542 } 3543 } 3544 3545 void moveToDefaultScreen(boolean animate) { 3546 if (!isSmall()) { 3547 if (animate) { 3548 snapToPage(mDefaultPage); 3549 } else { 3550 setCurrentPage(mDefaultPage); 3551 } 3552 } 3553 getChildAt(mDefaultPage).requestFocus(); 3554 } 3555 3556 @Override 3557 public void syncPages() { 3558 } 3559 3560 @Override 3561 public void syncPageItems(int page) { 3562 } 3563 3564 @Override 3565 protected String getCurrentPageDescription() { 3566 int page = (mNextPage != INVALID_PAGE) ? mNextPage : mCurrentPage; 3567 return String.format(mContext.getString(R.string.workspace_scroll_format), 3568 page + 1, getChildCount()); 3569 } 3570 3571 public void getLocationInDragLayer(int[] loc) { 3572 mLauncher.getDragLayer().getLocationInDragLayer(this, loc); 3573 } 3574 3575 /** 3576 * Return true because we want the scrolling indicator to stretch to fit the space. 3577 */ 3578 protected boolean hasElasticScrollIndicator() { 3579 return true; 3580 } 3581 3582 void showDockDivider(boolean immediately) { 3583 final ViewGroup parent = (ViewGroup) getParent(); 3584 final View qsbDivider = (ImageView) (parent.findViewById(R.id.qsb_divider)); 3585 final View dockDivider = (ImageView) (parent.findViewById(R.id.dock_divider)); 3586 if (qsbDivider != null && dockDivider != null) { 3587 qsbDivider.setVisibility(View.VISIBLE); 3588 dockDivider.setVisibility(View.VISIBLE); 3589 if (mDividerAnimator != null) { 3590 mDividerAnimator.cancel(); 3591 mDividerAnimator = null; 3592 } 3593 if (immediately) { 3594 qsbDivider.setAlpha(1f); 3595 dockDivider.setAlpha(1f); 3596 } else { 3597 mDividerAnimator = new AnimatorSet(); 3598 mDividerAnimator.playTogether(ObjectAnimator.ofFloat(qsbDivider, "alpha", 1f), 3599 ObjectAnimator.ofFloat(dockDivider, "alpha", 1f)); 3600 mDividerAnimator.setDuration(sScrollIndicatorFadeInDuration); 3601 mDividerAnimator.start(); 3602 } 3603 } 3604 } 3605 3606 void hideDockDivider(boolean immediately) { 3607 final ViewGroup parent = (ViewGroup) getParent(); 3608 final View qsbDivider = (ImageView) (parent.findViewById(R.id.qsb_divider)); 3609 final View dockDivider = (ImageView) (parent.findViewById(R.id.dock_divider)); 3610 if (qsbDivider != null && dockDivider != null) { 3611 if (mDividerAnimator != null) { 3612 mDividerAnimator.cancel(); 3613 mDividerAnimator = null; 3614 } 3615 if (immediately) { 3616 qsbDivider.setVisibility(View.GONE); 3617 dockDivider.setVisibility(View.GONE); 3618 qsbDivider.setAlpha(0f); 3619 dockDivider.setAlpha(0f); 3620 } else { 3621 mDividerAnimator = new AnimatorSet(); 3622 mDividerAnimator.playTogether(ObjectAnimator.ofFloat(qsbDivider, "alpha", 0f), 3623 ObjectAnimator.ofFloat(dockDivider, "alpha", 0f)); 3624 mDividerAnimator.addListener(new AnimatorListenerAdapter() { 3625 private boolean cancelled = false; 3626 @Override 3627 public void onAnimationCancel(android.animation.Animator animation) { 3628 cancelled = true; 3629 } 3630 @Override 3631 public void onAnimationEnd(android.animation.Animator animation) { 3632 if (!cancelled) { 3633 qsbDivider.setVisibility(View.GONE); 3634 dockDivider.setVisibility(View.GONE); 3635 } 3636 } 3637 }); 3638 mDividerAnimator.setDuration(sScrollIndicatorFadeOutDuration); 3639 mDividerAnimator.start(); 3640 } 3641 } 3642 } 3643} 3644