Workspace.java revision 997a92348a6d6e061737399321393449c16cd4d8
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.launcher3; 18 19import android.animation.Animator; 20import android.animation.AnimatorSet; 21import android.animation.LayoutTransition; 22import android.animation.ObjectAnimator; 23import android.animation.TimeInterpolator; 24import android.animation.ValueAnimator; 25import android.animation.ValueAnimator.AnimatorUpdateListener; 26import android.app.WallpaperManager; 27import android.appwidget.AppWidgetHostView; 28import android.appwidget.AppWidgetProviderInfo; 29import android.content.ComponentName; 30import android.content.Context; 31import android.content.Intent; 32import android.content.SharedPreferences; 33import android.content.res.Resources; 34import android.content.res.TypedArray; 35import android.graphics.Bitmap; 36import android.graphics.Canvas; 37import android.graphics.Color; 38import android.graphics.Matrix; 39import android.graphics.Paint; 40import android.graphics.Point; 41import android.graphics.PointF; 42import android.graphics.Rect; 43import android.graphics.Region.Op; 44import android.graphics.drawable.Drawable; 45import android.os.IBinder; 46import android.os.Parcelable; 47import android.util.AttributeSet; 48import android.util.Log; 49import android.util.SparseArray; 50import android.view.Display; 51import android.view.MotionEvent; 52import android.view.View; 53import android.view.ViewGroup; 54import android.view.animation.DecelerateInterpolator; 55import android.widget.ImageView; 56import android.widget.TextView; 57 58import com.android.launcher3.FolderIcon.FolderRingAnimator; 59import com.android.launcher3.Launcher.CustomContentCallbacks; 60import com.android.launcher3.LauncherSettings.Favorites; 61 62import java.net.URISyntaxException; 63import java.util.ArrayList; 64import java.util.HashMap; 65import java.util.HashSet; 66import java.util.Iterator; 67import java.util.Set; 68 69/** 70 * The workspace is a wide area with a wallpaper and a finite number of pages. 71 * Each page contains a number of icons, folders or widgets the user can 72 * interact with. A workspace is meant to be used with a fixed width only. 73 */ 74public class Workspace extends SmoothPagedView 75 implements DropTarget, DragSource, DragScroller, View.OnTouchListener, 76 DragController.DragListener, LauncherTransitionable, ViewGroup.OnHierarchyChangeListener { 77 private static final String TAG = "Launcher.Workspace"; 78 79 // Y rotation to apply to the workspace screens 80 private static final float WORKSPACE_OVERSCROLL_ROTATION = 24f; 81 82 private static final int CHILDREN_OUTLINE_FADE_OUT_DELAY = 0; 83 private static final int CHILDREN_OUTLINE_FADE_OUT_DURATION = 375; 84 private static final int CHILDREN_OUTLINE_FADE_IN_DURATION = 100; 85 86 private static final int BACKGROUND_FADE_OUT_DURATION = 350; 87 private static final int ADJACENT_SCREEN_DROP_DURATION = 300; 88 private static final int FLING_THRESHOLD_VELOCITY = 500; 89 90 // These animators are used to fade the children's outlines 91 private ObjectAnimator mChildrenOutlineFadeInAnimation; 92 private ObjectAnimator mChildrenOutlineFadeOutAnimation; 93 private float mChildrenOutlineAlpha = 0; 94 95 // These properties refer to the background protection gradient used for AllApps and Customize 96 private ValueAnimator mBackgroundFadeInAnimation; 97 private ValueAnimator mBackgroundFadeOutAnimation; 98 private Drawable mBackground; 99 boolean mDrawBackground = true; 100 private float mBackgroundAlpha = 0; 101 102 private LayoutTransition mLayoutTransition; 103 private final WallpaperManager mWallpaperManager; 104 private IBinder mWindowToken; 105 private static final float WALLPAPER_SCREENS_SPAN = 2f; 106 107 private int mDefaultPage; 108 109 // The screen id used for the empty screen always present to the right. 110 private final static long EXTRA_EMPTY_SCREEN_ID = -201; 111 private final static long CUSTOM_CONTENT_SCREEN_ID = -301; 112 113 private HashMap<Long, CellLayout> mWorkspaceScreens = new HashMap<Long, CellLayout>(); 114 private ArrayList<Long> mScreenOrder = new ArrayList<Long>(); 115 116 /** 117 * CellInfo for the cell that is currently being dragged 118 */ 119 private CellLayout.CellInfo mDragInfo; 120 121 /** 122 * Target drop area calculated during last acceptDrop call. 123 */ 124 private int[] mTargetCell = new int[2]; 125 private int mDragOverX = -1; 126 private int mDragOverY = -1; 127 128 static Rect mLandscapeCellLayoutMetrics = null; 129 static Rect mPortraitCellLayoutMetrics = null; 130 131 CustomContentCallbacks mCustomContentCallbacks; 132 boolean mCustomContentShowing; 133 134 /** 135 * The CellLayout that is currently being dragged over 136 */ 137 private CellLayout mDragTargetLayout = null; 138 /** 139 * The CellLayout that we will show as glowing 140 */ 141 private CellLayout mDragOverlappingLayout = null; 142 143 /** 144 * The CellLayout which will be dropped to 145 */ 146 private CellLayout mDropToLayout = null; 147 148 private Launcher mLauncher; 149 private IconCache mIconCache; 150 private DragController mDragController; 151 152 // These are temporary variables to prevent having to allocate a new object just to 153 // return an (x, y) value from helper functions. Do NOT use them to maintain other state. 154 private int[] mTempCell = new int[2]; 155 private int[] mTempPt = new int[2]; 156 private int[] mTempEstimate = new int[2]; 157 private float[] mDragViewVisualCenter = new float[2]; 158 private float[] mTempCellLayoutCenterCoordinates = new float[2]; 159 private Matrix mTempInverseMatrix = new Matrix(); 160 161 private SpringLoadedDragController mSpringLoadedDragController; 162 private float mSpringLoadedShrinkFactor; 163 164 private static final int DEFAULT_CELL_COUNT_X = 4; 165 private static final int DEFAULT_CELL_COUNT_Y = 4; 166 167 // State variable that indicates whether the pages are small (ie when you're 168 // in all apps or customize mode) 169 170 enum State { NORMAL, SPRING_LOADED, SMALL }; 171 private State mState = State.NORMAL; 172 private boolean mIsSwitchingState = false; 173 174 boolean mAnimatingViewIntoPlace = false; 175 boolean mIsDragOccuring = false; 176 boolean mChildrenLayersEnabled = true; 177 178 private boolean mStripScreensOnPageStopMoving = false; 179 180 /** Is the user is dragging an item near the edge of a page? */ 181 private boolean mInScrollArea = false; 182 183 private HolographicOutlineHelper mOutlineHelper; 184 private Bitmap mDragOutline = null; 185 private final Rect mTempRect = new Rect(); 186 private final int[] mTempXY = new int[2]; 187 private int[] mTempVisiblePagesRange = new int[2]; 188 private float mOverscrollFade = 0; 189 private boolean mOverscrollTransformsSet; 190 public static final int DRAG_BITMAP_PADDING = 2; 191 private boolean mWorkspaceFadeInAdjacentScreens; 192 193 enum WallpaperVerticalOffset { TOP, MIDDLE, BOTTOM }; 194 int mWallpaperWidth; 195 int mWallpaperHeight; 196 WallpaperOffsetInterpolator mWallpaperOffset; 197 boolean mUpdateWallpaperOffsetImmediately = false; 198 private Runnable mDelayedResizeRunnable; 199 private Runnable mDelayedSnapToPageRunnable; 200 private Point mDisplaySize = new Point(); 201 private boolean mIsStaticWallpaper; 202 private int mWallpaperTravelWidth; 203 private int mCameraDistance; 204 205 // Variables relating to the creation of user folders by hovering shortcuts over shortcuts 206 private static final int FOLDER_CREATION_TIMEOUT = 0; 207 private static final int REORDER_TIMEOUT = 250; 208 private final Alarm mFolderCreationAlarm = new Alarm(); 209 private final Alarm mReorderAlarm = new Alarm(); 210 private FolderRingAnimator mDragFolderRingAnimator = null; 211 private FolderIcon mDragOverFolderIcon = null; 212 private boolean mCreateUserFolderOnDrop = false; 213 private boolean mAddToExistingFolderOnDrop = false; 214 private DropTarget.DragEnforcer mDragEnforcer; 215 private float mMaxDistanceForFolderCreation; 216 217 // Variables relating to touch disambiguation (scrolling workspace vs. scrolling a widget) 218 private float mXDown; 219 private float mYDown; 220 final static float START_DAMPING_TOUCH_SLOP_ANGLE = (float) Math.PI / 6; 221 final static float MAX_SWIPE_ANGLE = (float) Math.PI / 3; 222 final static float TOUCH_SLOP_DAMPING_FACTOR = 4; 223 224 // Relating to the animation of items being dropped externally 225 public static final int ANIMATE_INTO_POSITION_AND_DISAPPEAR = 0; 226 public static final int ANIMATE_INTO_POSITION_AND_REMAIN = 1; 227 public static final int ANIMATE_INTO_POSITION_AND_RESIZE = 2; 228 public static final int COMPLETE_TWO_STAGE_WIDGET_DROP_ANIMATION = 3; 229 public static final int CANCEL_TWO_STAGE_WIDGET_DROP_ANIMATION = 4; 230 231 // Related to dragging, folder creation and reordering 232 private static final int DRAG_MODE_NONE = 0; 233 private static final int DRAG_MODE_CREATE_FOLDER = 1; 234 private static final int DRAG_MODE_ADD_TO_FOLDER = 2; 235 private static final int DRAG_MODE_REORDER = 3; 236 private int mDragMode = DRAG_MODE_NONE; 237 private int mLastReorderX = -1; 238 private int mLastReorderY = -1; 239 240 private SparseArray<Parcelable> mSavedStates; 241 private final ArrayList<Integer> mRestoredPages = new ArrayList<Integer>(); 242 243 // These variables are used for storing the initial and final values during workspace animations 244 private int mSavedScrollX; 245 private float mSavedRotationY; 246 private float mSavedTranslationX; 247 248 private float mCurrentScale; 249 private float mNewScale; 250 private float[] mOldBackgroundAlphas; 251 private float[] mOldAlphas; 252 private float[] mNewBackgroundAlphas; 253 private float[] mNewAlphas; 254 private int mLastChildCount = -1; 255 private float mTransitionProgress; 256 257 private Runnable mDeferredAction; 258 private boolean mDeferDropAfterUninstall; 259 private boolean mUninstallSuccessful; 260 261 private final Runnable mBindPages = new Runnable() { 262 @Override 263 public void run() { 264 mLauncher.getModel().bindRemainingSynchronousPages(); 265 } 266 }; 267 268 /** 269 * Used to inflate the Workspace from XML. 270 * 271 * @param context The application's context. 272 * @param attrs The attributes set containing the Workspace's customization values. 273 */ 274 public Workspace(Context context, AttributeSet attrs) { 275 this(context, attrs, 0); 276 } 277 278 /** 279 * Used to inflate the Workspace from XML. 280 * 281 * @param context The application's context. 282 * @param attrs The attributes set containing the Workspace's customization values. 283 * @param defStyle Unused. 284 */ 285 public Workspace(Context context, AttributeSet attrs, int defStyle) { 286 super(context, attrs, defStyle); 287 mContentIsRefreshable = false; 288 289 mOutlineHelper = HolographicOutlineHelper.obtain(context); 290 291 mDragEnforcer = new DropTarget.DragEnforcer(context); 292 // With workspace, data is available straight from the get-go 293 setDataIsReady(); 294 295 mLauncher = (Launcher) context; 296 final Resources res = getResources(); 297 mWorkspaceFadeInAdjacentScreens = res.getBoolean(R.bool.config_workspaceFadeAdjacentScreens); 298 mFadeInAdjacentScreens = false; 299 mWallpaperManager = WallpaperManager.getInstance(context); 300 301 int cellCountX = DEFAULT_CELL_COUNT_X; 302 int cellCountY = DEFAULT_CELL_COUNT_Y; 303 304 TypedArray a = context.obtainStyledAttributes(attrs, 305 R.styleable.Workspace, defStyle, 0); 306 307 if (LauncherAppState.getInstance().isScreenLarge()) { 308 // Determine number of rows/columns dynamically 309 // TODO: This code currently fails on tablets with an aspect ratio < 1.3. 310 // Around that ratio we should make cells the same size in portrait and 311 // landscape 312 TypedArray actionBarSizeTypedArray = 313 context.obtainStyledAttributes(new int[] { android.R.attr.actionBarSize }); 314 final float actionBarHeight = actionBarSizeTypedArray.getDimension(0, 0f); 315 316 Point minDims = new Point(); 317 Point maxDims = new Point(); 318 mLauncher.getWindowManager().getDefaultDisplay().getCurrentSizeRange(minDims, maxDims); 319 320 cellCountX = 1; 321 while (CellLayout.widthInPortrait(res, cellCountX + 1) <= minDims.x) { 322 cellCountX++; 323 } 324 325 cellCountY = 1; 326 while (actionBarHeight + CellLayout.heightInLandscape(res, cellCountY + 1) 327 <= minDims.y) { 328 cellCountY++; 329 } 330 } 331 332 mSpringLoadedShrinkFactor = 333 res.getInteger(R.integer.config_workspaceSpringLoadShrinkPercentage) / 100.0f; 334 mCameraDistance = res.getInteger(R.integer.config_cameraDistance); 335 336 // if the value is manually specified, use that instead 337 cellCountX = a.getInt(R.styleable.Workspace_cellCountX, cellCountX); 338 cellCountY = a.getInt(R.styleable.Workspace_cellCountY, cellCountY); 339 mDefaultPage = a.getInt(R.styleable.Workspace_defaultScreen, 1); 340 341 a.recycle(); 342 343 setOnHierarchyChangeListener(this); 344 345 LauncherModel.updateWorkspaceLayoutCells(cellCountX, cellCountY); 346 setHapticFeedbackEnabled(false); 347 348 initWorkspace(); 349 350 // Disable multitouch across the workspace/all apps/customize tray 351 setMotionEventSplittingEnabled(true); 352 353 // Unless otherwise specified this view is important for accessibility. 354 if (getImportantForAccessibility() == View.IMPORTANT_FOR_ACCESSIBILITY_AUTO) { 355 setImportantForAccessibility(View.IMPORTANT_FOR_ACCESSIBILITY_YES); 356 } 357 } 358 359 // estimate the size of a widget with spans hSpan, vSpan. return MAX_VALUE for each 360 // dimension if unsuccessful 361 public int[] estimateItemSize(int hSpan, int vSpan, 362 ItemInfo itemInfo, boolean springLoaded) { 363 int[] size = new int[2]; 364 if (getChildCount() > 0) { 365 CellLayout cl = (CellLayout) mLauncher.getWorkspace().getChildAt(0); 366 Rect r = estimateItemPosition(cl, itemInfo, 0, 0, hSpan, vSpan); 367 size[0] = r.width(); 368 size[1] = r.height(); 369 if (springLoaded) { 370 size[0] *= mSpringLoadedShrinkFactor; 371 size[1] *= mSpringLoadedShrinkFactor; 372 } 373 return size; 374 } else { 375 size[0] = Integer.MAX_VALUE; 376 size[1] = Integer.MAX_VALUE; 377 return size; 378 } 379 } 380 381 public Rect estimateItemPosition(CellLayout cl, ItemInfo pendingInfo, 382 int hCell, int vCell, int hSpan, int vSpan) { 383 Rect r = new Rect(); 384 cl.cellToRect(hCell, vCell, hSpan, vSpan, r); 385 return r; 386 } 387 388 public void onDragStart(DragSource source, Object info, int dragAction) { 389 mIsDragOccuring = true; 390 updateChildrenLayersEnabled(false); 391 mLauncher.lockScreenOrientation(); 392 setChildrenBackgroundAlphaMultipliers(1f); 393 // Prevent any Un/InstallShortcutReceivers from updating the db while we are dragging 394 InstallShortcutReceiver.enableInstallQueue(); 395 UninstallShortcutReceiver.enableUninstallQueue(); 396 } 397 398 public void onDragEnd() { 399 mIsDragOccuring = false; 400 updateChildrenLayersEnabled(false); 401 mLauncher.unlockScreenOrientation(false); 402 403 // Re-enable any Un/InstallShortcutReceiver and now process any queued items 404 InstallShortcutReceiver.disableAndFlushInstallQueue(getContext()); 405 UninstallShortcutReceiver.disableAndFlushUninstallQueue(getContext()); 406 } 407 408 /** 409 * Initializes various states for this workspace. 410 */ 411 protected void initWorkspace() { 412 Context context = getContext(); 413 mCurrentPage = mDefaultPage; 414 Launcher.setScreen(mCurrentPage); 415 LauncherAppState app = LauncherAppState.getInstance(); 416 mIconCache = app.getIconCache(); 417 setWillNotDraw(false); 418 setClipChildren(false); 419 setClipToPadding(false); 420 setChildrenDrawnWithCacheEnabled(true); 421 setMinScale(0.5f); 422 setupLayoutTransition(); 423 424 final Resources res = getResources(); 425 try { 426 mBackground = res.getDrawable(R.drawable.apps_customize_bg); 427 } catch (Resources.NotFoundException e) { 428 // In this case, we will skip drawing background protection 429 } 430 431 mWallpaperOffset = new WallpaperOffsetInterpolator(); 432 Display display = mLauncher.getWindowManager().getDefaultDisplay(); 433 display.getSize(mDisplaySize); 434 mWallpaperTravelWidth = (int) (mDisplaySize.x * 435 wallpaperTravelToScreenWidthRatio(mDisplaySize.x, mDisplaySize.y)); 436 437 mMaxDistanceForFolderCreation = (0.55f * res.getDimensionPixelSize(R.dimen.app_icon_size)); 438 mFlingThresholdVelocity = (int) (FLING_THRESHOLD_VELOCITY * mDensity); 439 } 440 441 private void setupLayoutTransition() { 442 // We want to show layout transitions when pages are deleted, to close the gap. 443 mLayoutTransition = new LayoutTransition(); 444 mLayoutTransition.enableTransitionType(LayoutTransition.DISAPPEARING); 445 mLayoutTransition.enableTransitionType(LayoutTransition.CHANGE_DISAPPEARING); 446 mLayoutTransition.disableTransitionType(LayoutTransition.APPEARING); 447 mLayoutTransition.disableTransitionType(LayoutTransition.CHANGE_APPEARING); 448 setLayoutTransition(mLayoutTransition); 449 } 450 451 @Override 452 protected int getScrollMode() { 453 return SmoothPagedView.X_LARGE_MODE; 454 } 455 456 @Override 457 public void onChildViewAdded(View parent, View child) { 458 if (!(child instanceof CellLayout)) { 459 throw new IllegalArgumentException("A Workspace can only have CellLayout children."); 460 } 461 CellLayout cl = ((CellLayout) child); 462 cl.setOnInterceptTouchListener(this); 463 cl.setClickable(true); 464 cl.setContentDescription(getContext().getString( 465 R.string.workspace_description_format, getChildCount())); 466 467 super.onChildViewAdded(parent, child); 468 } 469 470 protected boolean shouldDrawChild(View child) { 471 final CellLayout cl = (CellLayout) child; 472 return super.shouldDrawChild(child) && 473 (cl.getShortcutsAndWidgets().getAlpha() > 0 || 474 cl.getBackgroundAlpha() > 0); 475 } 476 477 /** 478 * @return The open folder on the current screen, or null if there is none 479 */ 480 Folder getOpenFolder() { 481 DragLayer dragLayer = mLauncher.getDragLayer(); 482 int count = dragLayer.getChildCount(); 483 for (int i = 0; i < count; i++) { 484 View child = dragLayer.getChildAt(i); 485 if (child instanceof Folder) { 486 Folder folder = (Folder) child; 487 if (folder.getInfo().opened) 488 return folder; 489 } 490 } 491 return null; 492 } 493 494 boolean isTouchActive() { 495 return mTouchState != TOUCH_STATE_REST; 496 } 497 498 public long insertNewWorkspaceScreen(long screenId) { 499 return insertNewWorkspaceScreen(screenId, getChildCount(), true); 500 } 501 502 public long insertNewWorkspaceScreenBeforeEmptyScreen(long screenId, boolean updateDb) { 503 // Find the index to insert this view into. If the empty screen exists, then 504 // insert it before that. 505 int insertIndex = mScreenOrder.indexOf(EXTRA_EMPTY_SCREEN_ID); 506 if (insertIndex < 0) { 507 insertIndex = mScreenOrder.size(); 508 } 509 return insertNewWorkspaceScreen(screenId, insertIndex, updateDb); 510 } 511 512 public long insertNewWorkspaceScreen(long screenId, boolean updateDb) { 513 return insertNewWorkspaceScreen(screenId, getChildCount(), updateDb); 514 } 515 516 public long insertNewWorkspaceScreen(long screenId, int insertIndex, boolean updateDb) { 517 CellLayout newScreen = (CellLayout) 518 mLauncher.getLayoutInflater().inflate(R.layout.workspace_screen, null); 519 520 newScreen.setOnLongClickListener(mLongClickListener); 521 mWorkspaceScreens.put(screenId, newScreen); 522 mScreenOrder.add(insertIndex, screenId); 523 addView(newScreen, insertIndex); 524 if (updateDb) { 525 // On bind we don't need to update the screens in the database. 526 mLauncher.getModel().updateWorkspaceScreenOrder(mLauncher, mScreenOrder); 527 } 528 return screenId; 529 } 530 531 public void addCustomContentToLeft(View customContent, CustomContentCallbacks callbacks) { 532 CellLayout customScreen = (CellLayout) 533 mLauncher.getLayoutInflater().inflate(R.layout.workspace_screen, null); 534 535 int spanX = customScreen.getCountX(); 536 int spanY = customScreen.getCountY(); 537 538 CellLayout.LayoutParams lp = new CellLayout.LayoutParams(0, 0, spanX, spanY); 539 lp.canReorder = false; 540 541 customScreen.addViewToCellLayout(customContent, 0, 0, lp, true); 542 543 Rect p = new Rect(); 544 AppWidgetHostView.getDefaultPaddingForWidget(mLauncher, mLauncher.getComponentName(), p); 545 546 mWorkspaceScreens.put(CUSTOM_CONTENT_SCREEN_ID, customScreen); 547 mScreenOrder.add(0, CUSTOM_CONTENT_SCREEN_ID); 548 549 addFullScreenPage(customScreen); 550 551 mCustomContentCallbacks = callbacks; 552 553 // Ensure that the current page and default page are maintained. 554 mDefaultPage++; 555 setCurrentPage(getCurrentPage() + 1); 556 } 557 558 public long commitExtraEmptyScreen() { 559 CellLayout cl = mWorkspaceScreens.get(EXTRA_EMPTY_SCREEN_ID); 560 mWorkspaceScreens.remove(EXTRA_EMPTY_SCREEN_ID); 561 mScreenOrder.remove(EXTRA_EMPTY_SCREEN_ID); 562 563 long newId = LauncherAppState.getInstance().getLauncherProvider().generateNewScreenId(); 564 mWorkspaceScreens.put(newId, cl); 565 mScreenOrder.add(newId); 566 567 addExtraEmptyScreen(); 568 569 // Update the model for the new screen 570 mLauncher.getModel().updateWorkspaceScreenOrder(mLauncher, mScreenOrder); 571 572 return newId; 573 } 574 575 public void addExtraEmptyScreen() { 576 insertNewWorkspaceScreen(EXTRA_EMPTY_SCREEN_ID, false); 577 } 578 579 public CellLayout getScreenWithId(long screenId) { 580 CellLayout layout = mWorkspaceScreens.get(screenId); 581 return layout; 582 } 583 584 public long getIdForScreen(CellLayout layout) { 585 Iterator<Long> iter = mWorkspaceScreens.keySet().iterator(); 586 while (iter.hasNext()) { 587 long id = iter.next(); 588 if (mWorkspaceScreens.get(id) == layout) { 589 return id; 590 } 591 } 592 return -1; 593 } 594 595 public int getPageIndexForScreenId(long screenId) { 596 return indexOfChild(mWorkspaceScreens.get(screenId)); 597 } 598 599 public long getScreenIdForPageIndex(int index) { 600 return mScreenOrder.get(index); 601 } 602 603 ArrayList<Long> getScreenOrder() { 604 return mScreenOrder; 605 } 606 607 public void stripEmptyScreens() { 608 if (isPageMoving()) { 609 mStripScreensOnPageStopMoving = true; 610 return; 611 } 612 613 int currentPage = getNextPage(); 614 ArrayList<Long> removeScreens = new ArrayList<Long>(); 615 for (Long id: mWorkspaceScreens.keySet()) { 616 CellLayout cl = mWorkspaceScreens.get(id); 617 if (id >= 0 && cl.getShortcutsAndWidgets().getChildCount() == 0) { 618 removeScreens.add(id); 619 } 620 } 621 622 int pageShift = 0; 623 for (Long id: removeScreens) { 624 CellLayout cl = mWorkspaceScreens.get(id); 625 mWorkspaceScreens.remove(id); 626 mScreenOrder.remove(id); 627 if (indexOfChild(cl) < currentPage) { 628 pageShift++; 629 } 630 removeView(cl); 631 } 632 633 if (!removeScreens.isEmpty()) { 634 // Update the model if we have changed any screens 635 mLauncher.getModel().updateWorkspaceScreenOrder(mLauncher, mScreenOrder); 636 } 637 638 if (pageShift >= 0) { 639 setCurrentPage(currentPage - pageShift); 640 } 641 } 642 643 // See implementation for parameter definition. 644 void addInScreen(View child, long container, long screenId, 645 int x, int y, int spanX, int spanY) { 646 addInScreen(child, container, screenId, x, y, spanX, spanY, false, false); 647 } 648 649 // At bind time, we use the rank (screenId) to compute x and y for hotseat items. 650 // See implementation for parameter definition. 651 void addInScreenFromBind(View child, long container, long screenId, int x, int y, 652 int spanX, int spanY) { 653 addInScreen(child, container, screenId, x, y, spanX, spanY, false, true); 654 } 655 656 // See implementation for parameter definition. 657 void addInScreen(View child, long container, long screenId, int x, int y, int spanX, int spanY, 658 boolean insert) { 659 addInScreen(child, container, screenId, x, y, spanX, spanY, insert, false); 660 } 661 662 /** 663 * Adds the specified child in the specified screen. The position and dimension of 664 * the child are defined by x, y, spanX and spanY. 665 * 666 * @param child The child to add in one of the workspace's screens. 667 * @param screenId The screen in which to add the child. 668 * @param x The X position of the child in the screen's grid. 669 * @param y The Y position of the child in the screen's grid. 670 * @param spanX The number of cells spanned horizontally by the child. 671 * @param spanY The number of cells spanned vertically by the child. 672 * @param insert When true, the child is inserted at the beginning of the children list. 673 * @param computeXYFromRank When true, we use the rank (stored in screenId) to compute 674 * the x and y position in which to place hotseat items. Otherwise 675 * we use the x and y position to compute the rank. 676 */ 677 void addInScreen(View child, long container, long screenId, int x, int y, int spanX, int spanY, 678 boolean insert, boolean computeXYFromRank) { 679 if (container == LauncherSettings.Favorites.CONTAINER_DESKTOP) { 680 if (getScreenWithId(screenId) == null) { 681 Log.e(TAG, "Skipping child, screenId " + screenId + " not found"); 682 return; 683 } 684 } 685 if (screenId == EXTRA_EMPTY_SCREEN_ID) { 686 // This should never happen 687 throw new RuntimeException("Screen id should not be EXTRA_EMPTY_SCREEN_ID"); 688 } 689 690 final CellLayout layout; 691 if (container == LauncherSettings.Favorites.CONTAINER_HOTSEAT) { 692 layout = mLauncher.getHotseat().getLayout(); 693 child.setOnKeyListener(null); 694 695 // Hide folder title in the hotseat 696 if (child instanceof FolderIcon) { 697 ((FolderIcon) child).setTextVisible(false); 698 } 699 700 if (computeXYFromRank) { 701 x = mLauncher.getHotseat().getCellXFromOrder((int) screenId); 702 y = mLauncher.getHotseat().getCellYFromOrder((int) screenId); 703 } else { 704 screenId = mLauncher.getHotseat().getOrderInHotseat(x, y); 705 } 706 } else { 707 // Show folder title if not in the hotseat 708 if (child instanceof FolderIcon) { 709 ((FolderIcon) child).setTextVisible(true); 710 } 711 layout = getScreenWithId(screenId); 712 child.setOnKeyListener(new IconKeyEventListener()); 713 } 714 715 ViewGroup.LayoutParams genericLp = child.getLayoutParams(); 716 CellLayout.LayoutParams lp; 717 if (genericLp == null || !(genericLp instanceof CellLayout.LayoutParams)) { 718 lp = new CellLayout.LayoutParams(x, y, spanX, spanY); 719 } else { 720 lp = (CellLayout.LayoutParams) genericLp; 721 lp.cellX = x; 722 lp.cellY = y; 723 lp.cellHSpan = spanX; 724 lp.cellVSpan = spanY; 725 } 726 727 if (spanX < 0 && spanY < 0) { 728 lp.isLockedToGrid = false; 729 } 730 731 // Get the canonical child id to uniquely represent this view in this screen 732 int childId = LauncherModel.getCellLayoutChildId(container, screenId, x, y, spanX, spanY); 733 boolean markCellsAsOccupied = !(child instanceof Folder); 734 if (!layout.addViewToCellLayout(child, insert ? 0 : -1, childId, lp, markCellsAsOccupied)) { 735 // TODO: This branch occurs when the workspace is adding views 736 // outside of the defined grid 737 // maybe we should be deleting these items from the LauncherModel? 738 Log.w(TAG, "Failed to add to item at (" + lp.cellX + "," + lp.cellY + ") to CellLayout"); 739 } 740 741 if (!(child instanceof Folder)) { 742 child.setHapticFeedbackEnabled(false); 743 child.setOnLongClickListener(mLongClickListener); 744 } 745 if (child instanceof DropTarget) { 746 mDragController.addDropTarget((DropTarget) child); 747 } 748 } 749 750 /** 751 * Called directly from a CellLayout (not by the framework), after we've been added as a 752 * listener via setOnInterceptTouchEventListener(). This allows us to tell the CellLayout 753 * that it should intercept touch events, which is not something that is normally supported. 754 */ 755 @Override 756 public boolean onTouch(View v, MotionEvent event) { 757 return (isSmall() || !isFinishedSwitchingState()); 758 } 759 760 public boolean isSwitchingState() { 761 return mIsSwitchingState; 762 } 763 764 /** This differs from isSwitchingState in that we take into account how far the transition 765 * has completed. */ 766 public boolean isFinishedSwitchingState() { 767 return !mIsSwitchingState || (mTransitionProgress > 0.5f); 768 } 769 770 protected void onWindowVisibilityChanged (int visibility) { 771 mLauncher.onWindowVisibilityChanged(visibility); 772 } 773 774 @Override 775 public boolean dispatchUnhandledMove(View focused, int direction) { 776 if (isSmall() || !isFinishedSwitchingState()) { 777 // when the home screens are shrunken, shouldn't allow side-scrolling 778 return false; 779 } 780 return super.dispatchUnhandledMove(focused, direction); 781 } 782 783 @Override 784 public boolean onInterceptTouchEvent(MotionEvent ev) { 785 switch (ev.getAction() & MotionEvent.ACTION_MASK) { 786 case MotionEvent.ACTION_DOWN: 787 mXDown = ev.getX(); 788 mYDown = ev.getY(); 789 break; 790 case MotionEvent.ACTION_POINTER_UP: 791 case MotionEvent.ACTION_UP: 792 if (mTouchState == TOUCH_STATE_REST) { 793 final CellLayout currentPage = (CellLayout) getChildAt(mCurrentPage); 794 if (!currentPage.lastDownOnOccupiedCell()) { 795 onWallpaperTap(ev); 796 } 797 } 798 } 799 800 if (mLauncher != null && mLauncher.onTouch(this, ev)) { 801 return true; 802 } 803 804 return super.onInterceptTouchEvent(ev); 805 } 806 807 protected void reinflateWidgetsIfNecessary() { 808 final int clCount = getChildCount(); 809 for (int i = 0; i < clCount; i++) { 810 CellLayout cl = (CellLayout) getChildAt(i); 811 ShortcutAndWidgetContainer swc = cl.getShortcutsAndWidgets(); 812 final int itemCount = swc.getChildCount(); 813 for (int j = 0; j < itemCount; j++) { 814 View v = swc.getChildAt(j); 815 816 if (v.getTag() instanceof LauncherAppWidgetInfo) { 817 LauncherAppWidgetInfo info = (LauncherAppWidgetInfo) v.getTag(); 818 LauncherAppWidgetHostView lahv = (LauncherAppWidgetHostView) info.hostView; 819 if (lahv != null && lahv.orientationChangedSincedInflation()) { 820 mLauncher.removeAppWidget(info); 821 // Remove the current widget which is inflated with the wrong orientation 822 cl.removeView(lahv); 823 mLauncher.bindAppWidget(info); 824 } 825 } 826 } 827 } 828 } 829 830 @Override 831 protected void determineScrollingStart(MotionEvent ev) { 832 if (isSmall()) return; 833 if (!isFinishedSwitchingState()) return; 834 835 float deltaX = Math.abs(ev.getX() - mXDown); 836 float deltaY = Math.abs(ev.getY() - mYDown); 837 838 if (Float.compare(deltaX, 0f) == 0) return; 839 840 float slope = deltaY / deltaX; 841 float theta = (float) Math.atan(slope); 842 843 if (deltaX > mTouchSlop || deltaY > mTouchSlop) { 844 cancelCurrentPageLongPress(); 845 } 846 847 if (theta > MAX_SWIPE_ANGLE) { 848 // Above MAX_SWIPE_ANGLE, we don't want to ever start scrolling the workspace 849 return; 850 } else if (theta > START_DAMPING_TOUCH_SLOP_ANGLE) { 851 // Above START_DAMPING_TOUCH_SLOP_ANGLE and below MAX_SWIPE_ANGLE, we want to 852 // increase the touch slop to make it harder to begin scrolling the workspace. This 853 // results in vertically scrolling widgets to more easily. The higher the angle, the 854 // more we increase touch slop. 855 theta -= START_DAMPING_TOUCH_SLOP_ANGLE; 856 float extraRatio = (float) 857 Math.sqrt((theta / (MAX_SWIPE_ANGLE - START_DAMPING_TOUCH_SLOP_ANGLE))); 858 super.determineScrollingStart(ev, 1 + TOUCH_SLOP_DAMPING_FACTOR * extraRatio); 859 } else { 860 // Below START_DAMPING_TOUCH_SLOP_ANGLE, we don't do anything special 861 super.determineScrollingStart(ev); 862 } 863 } 864 865 protected void onPageBeginMoving() { 866 super.onPageBeginMoving(); 867 868 if (isHardwareAccelerated()) { 869 updateChildrenLayersEnabled(false); 870 } else { 871 if (mNextPage != INVALID_PAGE) { 872 // we're snapping to a particular screen 873 enableChildrenCache(mCurrentPage, mNextPage); 874 } else { 875 // this is when user is actively dragging a particular screen, they might 876 // swipe it either left or right (but we won't advance by more than one screen) 877 enableChildrenCache(mCurrentPage - 1, mCurrentPage + 1); 878 } 879 } 880 881 // Only show page outlines as we pan if we are on large screen 882 if (LauncherAppState.getInstance().isScreenLarge()) { 883 showOutlines(); 884 mIsStaticWallpaper = mWallpaperManager.getWallpaperInfo() == null; 885 } 886 887 // If we are not fading in adjacent screens, we still need to restore the alpha in case the 888 // user scrolls while we are transitioning (should not affect dispatchDraw optimizations) 889 if (!mWorkspaceFadeInAdjacentScreens) { 890 for (int i = 0; i < getChildCount(); ++i) { 891 ((CellLayout) getPageAt(i)).setShortcutAndWidgetAlpha(1f); 892 } 893 } 894 } 895 896 protected void onPageEndMoving() { 897 super.onPageEndMoving(); 898 899 if (isHardwareAccelerated()) { 900 updateChildrenLayersEnabled(false); 901 } else { 902 clearChildrenCache(); 903 } 904 905 906 if (mDragController.isDragging()) { 907 if (isSmall()) { 908 // If we are in springloaded mode, then force an event to check if the current touch 909 // is under a new page (to scroll to) 910 mDragController.forceTouchMove(); 911 } 912 } else { 913 // If we are not mid-dragging, hide the page outlines if we are on a large screen 914 if (LauncherAppState.getInstance().isScreenLarge()) { 915 hideOutlines(); 916 } 917 } 918 919 if (mDelayedResizeRunnable != null) { 920 mDelayedResizeRunnable.run(); 921 mDelayedResizeRunnable = null; 922 } 923 924 if (mDelayedSnapToPageRunnable != null) { 925 mDelayedSnapToPageRunnable.run(); 926 mDelayedSnapToPageRunnable = null; 927 } 928 if (mStripScreensOnPageStopMoving) { 929 stripEmptyScreens(); 930 mStripScreensOnPageStopMoving = false; 931 } 932 } 933 934 @Override 935 protected void notifyPageSwitchListener() { 936 super.notifyPageSwitchListener(); 937 Launcher.setScreen(mCurrentPage); 938 939 if (hasCustomContent() && mCurrentPage == 0) { 940 mCustomContentShowing = true; 941 if (mCustomContentCallbacks != null) { 942 mCustomContentCallbacks.onShow(); 943 } 944 } else if (hasCustomContent() && mCustomContentShowing) { 945 mCustomContentShowing = false; 946 if (mCustomContentCallbacks != null) { 947 mCustomContentCallbacks.onHide(); 948 mLauncher.resetQSBScroll(); 949 } 950 } 951 }; 952 953 // As a ratio of screen height, the total distance we want the parallax effect to span 954 // horizontally 955 private float wallpaperTravelToScreenWidthRatio(int width, int height) { 956 float aspectRatio = width / (float) height; 957 958 // At an aspect ratio of 16/10, the wallpaper parallax effect should span 1.5 * screen width 959 // At an aspect ratio of 10/16, the wallpaper parallax effect should span 1.2 * screen width 960 // We will use these two data points to extrapolate how much the wallpaper parallax effect 961 // to span (ie travel) at any aspect ratio: 962 963 final float ASPECT_RATIO_LANDSCAPE = 16/10f; 964 final float ASPECT_RATIO_PORTRAIT = 10/16f; 965 final float WALLPAPER_WIDTH_TO_SCREEN_RATIO_LANDSCAPE = 1.5f; 966 final float WALLPAPER_WIDTH_TO_SCREEN_RATIO_PORTRAIT = 1.2f; 967 968 // To find out the desired width at different aspect ratios, we use the following two 969 // formulas, where the coefficient on x is the aspect ratio (width/height): 970 // (16/10)x + y = 1.5 971 // (10/16)x + y = 1.2 972 // We solve for x and y and end up with a final formula: 973 final float x = 974 (WALLPAPER_WIDTH_TO_SCREEN_RATIO_LANDSCAPE - WALLPAPER_WIDTH_TO_SCREEN_RATIO_PORTRAIT) / 975 (ASPECT_RATIO_LANDSCAPE - ASPECT_RATIO_PORTRAIT); 976 final float y = WALLPAPER_WIDTH_TO_SCREEN_RATIO_PORTRAIT - x * ASPECT_RATIO_PORTRAIT; 977 return x * aspectRatio + y; 978 } 979 980 protected void setWallpaperDimension() { 981 Point minDims = new Point(); 982 Point maxDims = new Point(); 983 mLauncher.getWindowManager().getDefaultDisplay().getCurrentSizeRange(minDims, maxDims); 984 985 final int maxDim = Math.max(maxDims.x, maxDims.y); 986 final int minDim = Math.min(minDims.x, minDims.y); 987 988 // We need to ensure that there is enough extra space in the wallpaper for the intended 989 // parallax effects 990 if (LauncherAppState.getInstance().isScreenLarge()) { 991 mWallpaperWidth = (int) (maxDim * wallpaperTravelToScreenWidthRatio(maxDim, minDim)); 992 mWallpaperHeight = maxDim; 993 } else { 994 mWallpaperWidth = Math.max((int) (minDim * WALLPAPER_SCREENS_SPAN), maxDim); 995 mWallpaperHeight = maxDim; 996 } 997 new Thread("setWallpaperDimension") { 998 public void run() { 999 mWallpaperManager.suggestDesiredDimensions(mWallpaperWidth, mWallpaperHeight); 1000 } 1001 }.start(); 1002 } 1003 1004 private void syncWallpaperOffsetWithScroll() { 1005 final boolean enableWallpaperEffects = isHardwareAccelerated(); 1006 if (enableWallpaperEffects) { 1007 // TODO: figure out what to do about parallax, for now disable it 1008 //mWallpaperOffset.setFinalX(wallpaperOffsetForCurrentScroll()); 1009 } 1010 } 1011 1012 public void updateWallpaperOffsetImmediately() { 1013 mUpdateWallpaperOffsetImmediately = true; 1014 } 1015 1016 private void updateWallpaperOffsets() { 1017 boolean updateNow = false; 1018 boolean keepUpdating = true; 1019 if (mUpdateWallpaperOffsetImmediately) { 1020 updateNow = true; 1021 keepUpdating = false; 1022 mWallpaperOffset.jumpToFinal(); 1023 mUpdateWallpaperOffsetImmediately = false; 1024 } else { 1025 updateNow = keepUpdating = mWallpaperOffset.computeScrollOffset(); 1026 } 1027 if (updateNow) { 1028 if (mWindowToken != null) { 1029 mWallpaperManager.setWallpaperOffsets(mWindowToken, 1030 mWallpaperOffset.getCurrX(), mWallpaperOffset.getCurrY()); 1031 } 1032 } 1033 if (keepUpdating) { 1034 invalidate(); 1035 } 1036 } 1037 1038 protected void snapToPage(int whichPage, Runnable r) { 1039 if (mDelayedSnapToPageRunnable != null) { 1040 mDelayedSnapToPageRunnable.run(); 1041 } 1042 mDelayedSnapToPageRunnable = r; 1043 snapToPage(whichPage, SLOW_PAGE_SNAP_ANIMATION_DURATION); 1044 } 1045 1046 protected void snapToScreenId(long screenId, Runnable r) { 1047 snapToPage(getPageIndexForScreenId(screenId), r); 1048 } 1049 1050 class WallpaperOffsetInterpolator { 1051 float mFinalHorizontalWallpaperOffset = 0.0f; 1052 float mFinalVerticalWallpaperOffset = 0.5f; 1053 float mHorizontalWallpaperOffset = 0.0f; 1054 float mVerticalWallpaperOffset = 0.5f; 1055 long mLastWallpaperOffsetUpdateTime; 1056 boolean mIsMovingFast; 1057 boolean mOverrideHorizontalCatchupConstant; 1058 float mHorizontalCatchupConstant = 0.35f; 1059 float mVerticalCatchupConstant = 0.35f; 1060 1061 public WallpaperOffsetInterpolator() { 1062 } 1063 1064 public void setOverrideHorizontalCatchupConstant(boolean override) { 1065 mOverrideHorizontalCatchupConstant = override; 1066 } 1067 1068 public void setHorizontalCatchupConstant(float f) { 1069 mHorizontalCatchupConstant = f; 1070 } 1071 1072 public void setVerticalCatchupConstant(float f) { 1073 mVerticalCatchupConstant = f; 1074 } 1075 1076 public boolean computeScrollOffset() { 1077 if (Float.compare(mHorizontalWallpaperOffset, mFinalHorizontalWallpaperOffset) == 0 && 1078 Float.compare(mVerticalWallpaperOffset, mFinalVerticalWallpaperOffset) == 0) { 1079 mIsMovingFast = false; 1080 return false; 1081 } 1082 boolean isLandscape = mDisplaySize.x > mDisplaySize.y; 1083 1084 long currentTime = System.currentTimeMillis(); 1085 long timeSinceLastUpdate = currentTime - mLastWallpaperOffsetUpdateTime; 1086 timeSinceLastUpdate = Math.min((long) (1000/30f), timeSinceLastUpdate); 1087 timeSinceLastUpdate = Math.max(1L, timeSinceLastUpdate); 1088 1089 float xdiff = Math.abs(mFinalHorizontalWallpaperOffset - mHorizontalWallpaperOffset); 1090 if (!mIsMovingFast && xdiff > 0.07) { 1091 mIsMovingFast = true; 1092 } 1093 1094 float fractionToCatchUpIn1MsHorizontal; 1095 if (mOverrideHorizontalCatchupConstant) { 1096 fractionToCatchUpIn1MsHorizontal = mHorizontalCatchupConstant; 1097 } else if (mIsMovingFast) { 1098 fractionToCatchUpIn1MsHorizontal = isLandscape ? 0.5f : 0.75f; 1099 } else { 1100 // slow 1101 fractionToCatchUpIn1MsHorizontal = isLandscape ? 0.27f : 0.5f; 1102 } 1103 float fractionToCatchUpIn1MsVertical = mVerticalCatchupConstant; 1104 1105 fractionToCatchUpIn1MsHorizontal /= 33f; 1106 fractionToCatchUpIn1MsVertical /= 33f; 1107 1108 final float UPDATE_THRESHOLD = 0.00001f; 1109 float hOffsetDelta = mFinalHorizontalWallpaperOffset - mHorizontalWallpaperOffset; 1110 float vOffsetDelta = mFinalVerticalWallpaperOffset - mVerticalWallpaperOffset; 1111 boolean jumpToFinalValue = Math.abs(hOffsetDelta) < UPDATE_THRESHOLD && 1112 Math.abs(vOffsetDelta) < UPDATE_THRESHOLD; 1113 1114 // Don't have any lag between workspace and wallpaper on non-large devices 1115 if (!LauncherAppState.getInstance().isScreenLarge() || jumpToFinalValue) { 1116 mHorizontalWallpaperOffset = mFinalHorizontalWallpaperOffset; 1117 mVerticalWallpaperOffset = mFinalVerticalWallpaperOffset; 1118 } else { 1119 float percentToCatchUpVertical = 1120 Math.min(1.0f, timeSinceLastUpdate * fractionToCatchUpIn1MsVertical); 1121 float percentToCatchUpHorizontal = 1122 Math.min(1.0f, timeSinceLastUpdate * fractionToCatchUpIn1MsHorizontal); 1123 mHorizontalWallpaperOffset += percentToCatchUpHorizontal * hOffsetDelta; 1124 mVerticalWallpaperOffset += percentToCatchUpVertical * vOffsetDelta; 1125 } 1126 1127 mLastWallpaperOffsetUpdateTime = System.currentTimeMillis(); 1128 return true; 1129 } 1130 1131 public float getCurrX() { 1132 return mHorizontalWallpaperOffset; 1133 } 1134 1135 public float getFinalX() { 1136 return mFinalHorizontalWallpaperOffset; 1137 } 1138 1139 public float getCurrY() { 1140 return mVerticalWallpaperOffset; 1141 } 1142 1143 public float getFinalY() { 1144 return mFinalVerticalWallpaperOffset; 1145 } 1146 1147 public void setFinalX(float x) { 1148 mFinalHorizontalWallpaperOffset = Math.max(0f, Math.min(x, 1.0f)); 1149 } 1150 1151 public void setFinalY(float y) { 1152 mFinalVerticalWallpaperOffset = Math.max(0f, Math.min(y, 1.0f)); 1153 } 1154 1155 public void jumpToFinal() { 1156 mHorizontalWallpaperOffset = mFinalHorizontalWallpaperOffset; 1157 mVerticalWallpaperOffset = mFinalVerticalWallpaperOffset; 1158 } 1159 } 1160 1161 @Override 1162 public void computeScroll() { 1163 super.computeScroll(); 1164 syncWallpaperOffsetWithScroll(); 1165 } 1166 1167 void showOutlines() { 1168 if (!isSmall() && !mIsSwitchingState) { 1169 if (mChildrenOutlineFadeOutAnimation != null) mChildrenOutlineFadeOutAnimation.cancel(); 1170 if (mChildrenOutlineFadeInAnimation != null) mChildrenOutlineFadeInAnimation.cancel(); 1171 mChildrenOutlineFadeInAnimation = LauncherAnimUtils.ofFloat(this, "childrenOutlineAlpha", 1.0f); 1172 mChildrenOutlineFadeInAnimation.setDuration(CHILDREN_OUTLINE_FADE_IN_DURATION); 1173 mChildrenOutlineFadeInAnimation.start(); 1174 } 1175 } 1176 1177 void hideOutlines() { 1178 if (!isSmall() && !mIsSwitchingState) { 1179 if (mChildrenOutlineFadeInAnimation != null) mChildrenOutlineFadeInAnimation.cancel(); 1180 if (mChildrenOutlineFadeOutAnimation != null) mChildrenOutlineFadeOutAnimation.cancel(); 1181 mChildrenOutlineFadeOutAnimation = LauncherAnimUtils.ofFloat(this, "childrenOutlineAlpha", 0.0f); 1182 mChildrenOutlineFadeOutAnimation.setDuration(CHILDREN_OUTLINE_FADE_OUT_DURATION); 1183 mChildrenOutlineFadeOutAnimation.setStartDelay(CHILDREN_OUTLINE_FADE_OUT_DELAY); 1184 mChildrenOutlineFadeOutAnimation.start(); 1185 } 1186 } 1187 1188 public void showOutlinesTemporarily() { 1189 if (!mIsPageMoving && !isTouchActive()) { 1190 snapToPage(mCurrentPage); 1191 } 1192 } 1193 1194 public void setChildrenOutlineAlpha(float alpha) { 1195 mChildrenOutlineAlpha = alpha; 1196 for (int i = 0; i < getChildCount(); i++) { 1197 CellLayout cl = (CellLayout) getChildAt(i); 1198 cl.setBackgroundAlpha(alpha); 1199 } 1200 } 1201 1202 public float getChildrenOutlineAlpha() { 1203 return mChildrenOutlineAlpha; 1204 } 1205 1206 void disableBackground() { 1207 mDrawBackground = false; 1208 } 1209 void enableBackground() { 1210 mDrawBackground = true; 1211 } 1212 1213 private void animateBackgroundGradient(float finalAlpha, boolean animated) { 1214 if (mBackground == null) return; 1215 if (mBackgroundFadeInAnimation != null) { 1216 mBackgroundFadeInAnimation.cancel(); 1217 mBackgroundFadeInAnimation = null; 1218 } 1219 if (mBackgroundFadeOutAnimation != null) { 1220 mBackgroundFadeOutAnimation.cancel(); 1221 mBackgroundFadeOutAnimation = null; 1222 } 1223 float startAlpha = getBackgroundAlpha(); 1224 if (finalAlpha != startAlpha) { 1225 if (animated) { 1226 mBackgroundFadeOutAnimation = 1227 LauncherAnimUtils.ofFloat(this, startAlpha, finalAlpha); 1228 mBackgroundFadeOutAnimation.addUpdateListener(new AnimatorUpdateListener() { 1229 public void onAnimationUpdate(ValueAnimator animation) { 1230 setBackgroundAlpha(((Float) animation.getAnimatedValue()).floatValue()); 1231 } 1232 }); 1233 mBackgroundFadeOutAnimation.setInterpolator(new DecelerateInterpolator(1.5f)); 1234 mBackgroundFadeOutAnimation.setDuration(BACKGROUND_FADE_OUT_DURATION); 1235 mBackgroundFadeOutAnimation.start(); 1236 } else { 1237 setBackgroundAlpha(finalAlpha); 1238 } 1239 } 1240 } 1241 1242 public void setBackgroundAlpha(float alpha) { 1243 if (alpha != mBackgroundAlpha) { 1244 mBackgroundAlpha = alpha; 1245 invalidate(); 1246 } 1247 } 1248 1249 public float getBackgroundAlpha() { 1250 return mBackgroundAlpha; 1251 } 1252 1253 float backgroundAlphaInterpolator(float r) { 1254 float pivotA = 0.1f; 1255 float pivotB = 0.4f; 1256 if (r < pivotA) { 1257 return 0; 1258 } else if (r > pivotB) { 1259 return 1.0f; 1260 } else { 1261 return (r - pivotA)/(pivotB - pivotA); 1262 } 1263 } 1264 1265 private void updatePageAlphaValues(int screenCenter) { 1266 boolean isInOverscroll = mOverScrollX < 0 || mOverScrollX > mMaxScrollX; 1267 if (mWorkspaceFadeInAdjacentScreens && 1268 mState == State.NORMAL && 1269 !mIsSwitchingState && 1270 !isInOverscroll) { 1271 for (int i = 0; i < getChildCount(); i++) { 1272 CellLayout child = (CellLayout) getChildAt(i); 1273 if (child != null) { 1274 float scrollProgress = getScrollProgress(screenCenter, child, i); 1275 float alpha = 1 - Math.abs(scrollProgress); 1276 child.getShortcutsAndWidgets().setAlpha(alpha); 1277 if (!mIsDragOccuring) { 1278 child.setBackgroundAlphaMultiplier( 1279 backgroundAlphaInterpolator(Math.abs(scrollProgress))); 1280 } else { 1281 child.setBackgroundAlphaMultiplier(1f); 1282 } 1283 } 1284 } 1285 } 1286 } 1287 1288 private void setChildrenBackgroundAlphaMultipliers(float a) { 1289 for (int i = 0; i < getChildCount(); i++) { 1290 CellLayout child = (CellLayout) getChildAt(i); 1291 child.setBackgroundAlphaMultiplier(a); 1292 } 1293 } 1294 1295 private boolean hasCustomContent() { 1296 return (mScreenOrder.size() > 0 && mScreenOrder.get(0) == CUSTOM_CONTENT_SCREEN_ID); 1297 } 1298 1299 public boolean isOnOrMovingToCustomContent() { 1300 return hasCustomContent() && getNextPage() == 0; 1301 } 1302 1303 private void updateStateForCustomContent(int screenCenter) { 1304 if (hasCustomContent()) { 1305 CellLayout customContent = getScreenWithId(CUSTOM_CONTENT_SCREEN_ID); 1306 int index = mScreenOrder.indexOf(CUSTOM_CONTENT_SCREEN_ID); 1307 1308 int scrollDelta = getScrollForPage(index + 1) - getScrollX(); 1309 float translationX = Math.max(scrollDelta, 0); 1310 1311 float progress = (1.0f * scrollDelta) / 1312 (getScrollForPage(index + 1) - getScrollForPage(index)); 1313 progress = Math.max(0, progress); 1314 1315 setBackgroundAlpha(progress * 0.8f); 1316 float transY = progress * (getViewportHeight() - getPageIndicator().getTop()); 1317 1318 if (mLauncher.getHotseat() != null) { 1319 mLauncher.getHotseat().setTranslationY(transY); 1320 } 1321 if (getPageIndicator() != null) { 1322 getPageIndicator().setAlpha(1 - progress); 1323 } 1324 } 1325 } 1326 1327 @Override 1328 protected void screenScrolled(int screenCenter) { 1329 final boolean isRtl = isLayoutRtl(); 1330 super.screenScrolled(screenCenter); 1331 1332 updatePageAlphaValues(screenCenter); 1333 updateStateForCustomContent(screenCenter); 1334 enableHwLayersOnVisiblePages(); 1335 1336 if ((mOverScrollX < 0 && !hasCustomContent()) || mOverScrollX > mMaxScrollX) { 1337 int index = 0; 1338 float pivotX = 0f; 1339 final float leftBiasedPivot = 0.25f; 1340 final float rightBiasedPivot = 0.75f; 1341 final int lowerIndex = 0; 1342 final int upperIndex = getChildCount() - 1; 1343 if (isRtl) { 1344 index = mOverScrollX < 0 ? upperIndex : lowerIndex; 1345 pivotX = (index == 0 ? leftBiasedPivot : rightBiasedPivot); 1346 } else { 1347 index = mOverScrollX < 0 ? lowerIndex : upperIndex; 1348 pivotX = (index == 0 ? rightBiasedPivot : leftBiasedPivot); 1349 } 1350 1351 CellLayout cl = (CellLayout) getChildAt(index); 1352 float scrollProgress = getScrollProgress(screenCenter, cl, index); 1353 final boolean isLeftPage = (isRtl ? index > 0 : index == 0); 1354 cl.setOverScrollAmount(Math.abs(scrollProgress), isLeftPage); 1355 float rotation = -WORKSPACE_OVERSCROLL_ROTATION * scrollProgress; 1356 cl.setRotationY(rotation); 1357 setFadeForOverScroll(Math.abs(scrollProgress)); 1358 if (!mOverscrollTransformsSet) { 1359 mOverscrollTransformsSet = true; 1360 cl.setCameraDistance(mDensity * mCameraDistance); 1361 cl.setPivotX(cl.getMeasuredWidth() * pivotX); 1362 cl.setPivotY(cl.getMeasuredHeight() * 0.5f); 1363 cl.setOverscrollTransformsDirty(true); 1364 } 1365 } else { 1366 if (mOverscrollFade != 0) { 1367 setFadeForOverScroll(0); 1368 } 1369 if (mOverscrollTransformsSet) { 1370 mOverscrollTransformsSet = false; 1371 ((CellLayout) getChildAt(0)).resetOverscrollTransforms(); 1372 ((CellLayout) getChildAt(getChildCount() - 1)).resetOverscrollTransforms(); 1373 } 1374 } 1375 } 1376 1377 @Override 1378 protected void overScroll(float amount) { 1379 acceleratedOverScroll(amount); 1380 } 1381 1382 protected void onAttachedToWindow() { 1383 super.onAttachedToWindow(); 1384 mWindowToken = getWindowToken(); 1385 computeScroll(); 1386 mDragController.setWindowToken(mWindowToken); 1387 } 1388 1389 protected void onDetachedFromWindow() { 1390 mWindowToken = null; 1391 } 1392 1393 @Override 1394 protected void onLayout(boolean changed, int left, int top, int right, int bottom) { 1395 if (mFirstLayout && mCurrentPage >= 0 && mCurrentPage < getChildCount()) { 1396 mUpdateWallpaperOffsetImmediately = true; 1397 } 1398 super.onLayout(changed, left, top, right, bottom); 1399 } 1400 1401 @Override 1402 protected void onDraw(Canvas canvas) { 1403 updateWallpaperOffsets(); 1404 1405 // Draw the background gradient if necessary 1406 if (mBackground != null && mBackgroundAlpha > 0.0f && mDrawBackground) { 1407 int alpha = (int) (mBackgroundAlpha * 255); 1408 mBackground.setAlpha(alpha); 1409 mBackground.setBounds(getScrollX(), 0, getScrollX() + getMeasuredWidth(), 1410 getMeasuredHeight()); 1411 mBackground.draw(canvas); 1412 } 1413 1414 super.onDraw(canvas); 1415 1416 // Call back to LauncherModel to finish binding after the first draw 1417 post(mBindPages); 1418 } 1419 1420 boolean isDrawingBackgroundGradient() { 1421 return (mBackground != null && mBackgroundAlpha > 0.0f && mDrawBackground); 1422 } 1423 1424 @Override 1425 protected boolean onRequestFocusInDescendants(int direction, Rect previouslyFocusedRect) { 1426 if (!mLauncher.isAllAppsVisible()) { 1427 final Folder openFolder = getOpenFolder(); 1428 if (openFolder != null) { 1429 return openFolder.requestFocus(direction, previouslyFocusedRect); 1430 } else { 1431 return super.onRequestFocusInDescendants(direction, previouslyFocusedRect); 1432 } 1433 } 1434 return false; 1435 } 1436 1437 @Override 1438 public int getDescendantFocusability() { 1439 if (isSmall()) { 1440 return ViewGroup.FOCUS_BLOCK_DESCENDANTS; 1441 } 1442 return super.getDescendantFocusability(); 1443 } 1444 1445 @Override 1446 public void addFocusables(ArrayList<View> views, int direction, int focusableMode) { 1447 if (!mLauncher.isAllAppsVisible()) { 1448 final Folder openFolder = getOpenFolder(); 1449 if (openFolder != null) { 1450 openFolder.addFocusables(views, direction); 1451 } else { 1452 super.addFocusables(views, direction, focusableMode); 1453 } 1454 } 1455 } 1456 1457 public boolean isSmall() { 1458 return mState == State.SMALL || mState == State.SPRING_LOADED; 1459 } 1460 1461 void enableChildrenCache(int fromPage, int toPage) { 1462 if (fromPage > toPage) { 1463 final int temp = fromPage; 1464 fromPage = toPage; 1465 toPage = temp; 1466 } 1467 1468 final int screenCount = getChildCount(); 1469 1470 fromPage = Math.max(fromPage, 0); 1471 toPage = Math.min(toPage, screenCount - 1); 1472 1473 for (int i = fromPage; i <= toPage; i++) { 1474 final CellLayout layout = (CellLayout) getChildAt(i); 1475 layout.setChildrenDrawnWithCacheEnabled(true); 1476 layout.setChildrenDrawingCacheEnabled(true); 1477 } 1478 } 1479 1480 void clearChildrenCache() { 1481 final int screenCount = getChildCount(); 1482 for (int i = 0; i < screenCount; i++) { 1483 final CellLayout layout = (CellLayout) getChildAt(i); 1484 layout.setChildrenDrawnWithCacheEnabled(false); 1485 // In software mode, we don't want the items to continue to be drawn into bitmaps 1486 if (!isHardwareAccelerated()) { 1487 layout.setChildrenDrawingCacheEnabled(false); 1488 } 1489 } 1490 } 1491 1492 1493 private void updateChildrenLayersEnabled(boolean force) { 1494 boolean small = mState == State.SMALL || mIsSwitchingState; 1495 boolean enableChildrenLayers = force || small || mAnimatingViewIntoPlace || isPageMoving(); 1496 1497 if (enableChildrenLayers != mChildrenLayersEnabled) { 1498 mChildrenLayersEnabled = enableChildrenLayers; 1499 if (mChildrenLayersEnabled) { 1500 enableHwLayersOnVisiblePages(); 1501 } else { 1502 for (int i = 0; i < getPageCount(); i++) { 1503 final CellLayout cl = (CellLayout) getChildAt(i); 1504 cl.disableHardwareLayers(); 1505 } 1506 } 1507 } 1508 } 1509 1510 private void enableHwLayersOnVisiblePages() { 1511 if (mChildrenLayersEnabled) { 1512 final int screenCount = getChildCount(); 1513 getVisiblePages(mTempVisiblePagesRange); 1514 int leftScreen = mTempVisiblePagesRange[0]; 1515 int rightScreen = mTempVisiblePagesRange[1]; 1516 if (leftScreen == rightScreen) { 1517 // make sure we're caching at least two pages always 1518 if (rightScreen < screenCount - 1) { 1519 rightScreen++; 1520 } else if (leftScreen > 0) { 1521 leftScreen--; 1522 } 1523 } 1524 for (int i = 0; i < screenCount; i++) { 1525 final CellLayout layout = (CellLayout) getPageAt(i); 1526 if (!(leftScreen <= i && i <= rightScreen && shouldDrawChild(layout))) { 1527 layout.disableHardwareLayers(); 1528 } 1529 } 1530 for (int i = 0; i < screenCount; i++) { 1531 final CellLayout layout = (CellLayout) getPageAt(i); 1532 if (leftScreen <= i && i <= rightScreen && shouldDrawChild(layout)) { 1533 layout.enableHardwareLayers(); 1534 } 1535 } 1536 } 1537 } 1538 1539 public void buildPageHardwareLayers() { 1540 // force layers to be enabled just for the call to buildLayer 1541 updateChildrenLayersEnabled(true); 1542 if (getWindowToken() != null) { 1543 final int childCount = getChildCount(); 1544 for (int i = 0; i < childCount; i++) { 1545 CellLayout cl = (CellLayout) getChildAt(i); 1546 cl.buildHardwareLayer(); 1547 } 1548 } 1549 updateChildrenLayersEnabled(false); 1550 } 1551 1552 protected void onWallpaperTap(MotionEvent ev) { 1553 final int[] position = mTempCell; 1554 getLocationOnScreen(position); 1555 1556 int pointerIndex = ev.getActionIndex(); 1557 position[0] += (int) ev.getX(pointerIndex); 1558 position[1] += (int) ev.getY(pointerIndex); 1559 1560 mWallpaperManager.sendWallpaperCommand(getWindowToken(), 1561 ev.getAction() == MotionEvent.ACTION_UP 1562 ? WallpaperManager.COMMAND_TAP : WallpaperManager.COMMAND_SECONDARY_TAP, 1563 position[0], position[1], 0, null); 1564 } 1565 1566 /* 1567 * This interpolator emulates the rate at which the perceived scale of an object changes 1568 * as its distance from a camera increases. When this interpolator is applied to a scale 1569 * animation on a view, it evokes the sense that the object is shrinking due to moving away 1570 * from the camera. 1571 */ 1572 static class ZInterpolator implements TimeInterpolator { 1573 private float focalLength; 1574 1575 public ZInterpolator(float foc) { 1576 focalLength = foc; 1577 } 1578 1579 public float getInterpolation(float input) { 1580 return (1.0f - focalLength / (focalLength + input)) / 1581 (1.0f - focalLength / (focalLength + 1.0f)); 1582 } 1583 } 1584 1585 /* 1586 * The exact reverse of ZInterpolator. 1587 */ 1588 static class InverseZInterpolator implements TimeInterpolator { 1589 private ZInterpolator zInterpolator; 1590 public InverseZInterpolator(float foc) { 1591 zInterpolator = new ZInterpolator(foc); 1592 } 1593 public float getInterpolation(float input) { 1594 return 1 - zInterpolator.getInterpolation(1 - input); 1595 } 1596 } 1597 1598 /* 1599 * ZInterpolator compounded with an ease-out. 1600 */ 1601 static class ZoomOutInterpolator implements TimeInterpolator { 1602 private final DecelerateInterpolator decelerate = new DecelerateInterpolator(0.75f); 1603 private final ZInterpolator zInterpolator = new ZInterpolator(0.13f); 1604 1605 public float getInterpolation(float input) { 1606 return decelerate.getInterpolation(zInterpolator.getInterpolation(input)); 1607 } 1608 } 1609 1610 /* 1611 * InvereZInterpolator compounded with an ease-out. 1612 */ 1613 static class ZoomInInterpolator implements TimeInterpolator { 1614 private final InverseZInterpolator inverseZInterpolator = new InverseZInterpolator(0.35f); 1615 private final DecelerateInterpolator decelerate = new DecelerateInterpolator(3.0f); 1616 1617 public float getInterpolation(float input) { 1618 return decelerate.getInterpolation(inverseZInterpolator.getInterpolation(input)); 1619 } 1620 } 1621 1622 private final ZoomInInterpolator mZoomInInterpolator = new ZoomInInterpolator(); 1623 1624 /* 1625 * 1626 * We call these methods (onDragStartedWithItemSpans/onDragStartedWithSize) whenever we 1627 * start a drag in Launcher, regardless of whether the drag has ever entered the Workspace 1628 * 1629 * These methods mark the appropriate pages as accepting drops (which alters their visual 1630 * appearance). 1631 * 1632 */ 1633 public void onDragStartedWithItem(View v) { 1634 final Canvas canvas = new Canvas(); 1635 1636 // The outline is used to visualize where the item will land if dropped 1637 mDragOutline = createDragOutline(v, canvas, DRAG_BITMAP_PADDING); 1638 } 1639 1640 public void onDragStartedWithItem(PendingAddItemInfo info, Bitmap b, boolean clipAlpha) { 1641 final Canvas canvas = new Canvas(); 1642 1643 int[] size = estimateItemSize(info.spanX, info.spanY, info, false); 1644 1645 // The outline is used to visualize where the item will land if dropped 1646 mDragOutline = createDragOutline(b, canvas, DRAG_BITMAP_PADDING, size[0], 1647 size[1], clipAlpha); 1648 } 1649 1650 public void exitWidgetResizeMode() { 1651 DragLayer dragLayer = mLauncher.getDragLayer(); 1652 dragLayer.clearAllResizeFrames(); 1653 } 1654 1655 private void initAnimationArrays() { 1656 final int childCount = getChildCount(); 1657 if (mLastChildCount == childCount) return; 1658 1659 mOldBackgroundAlphas = new float[childCount]; 1660 mOldAlphas = new float[childCount]; 1661 mNewBackgroundAlphas = new float[childCount]; 1662 mNewAlphas = new float[childCount]; 1663 } 1664 1665 Animator getChangeStateAnimation(final State state, boolean animated) { 1666 return getChangeStateAnimation(state, animated, 0); 1667 } 1668 1669 void getReorderablePages(int[] range) { 1670 int count = mScreenOrder.size(); 1671 1672 int start = -1; 1673 int end = -1; 1674 // 1675 for (int i = 0; i < count; i++) { 1676 if (start < 0 && mScreenOrder.get(i) >= 0) { 1677 start = i; 1678 } 1679 if (start >=0 && mScreenOrder.get(i) >= 0) { 1680 end = i; 1681 } 1682 } 1683 range[0] = start; 1684 range[1] = end; 1685 } 1686 1687 protected void onStartReordering() { 1688 super.onStartReordering(); 1689 int count = getChildCount(); 1690 for (int i = 0; i < count; i++) { 1691 ((CellLayout) getChildAt(i)).setUseActiveGlowBackground(true); 1692 } 1693 showOutlines(); 1694 1695 // Reordering handles its own animations, disable the automatic ones. 1696 setLayoutTransition(null); 1697 } 1698 1699 protected void onEndReordering() { 1700 super.onEndReordering(); 1701 int count = getChildCount(); 1702 for (int i = 0; i < count; i++) { 1703 ((CellLayout) getChildAt(i)).setUseActiveGlowBackground(false); 1704 } 1705 hideOutlines(); 1706 1707 mScreenOrder.clear(); 1708 for (int i = 0; i < count; i++) { 1709 CellLayout cl = ((CellLayout) getChildAt(i)); 1710 mScreenOrder.add(getIdForScreen(cl)); 1711 } 1712 mLauncher.getModel().updateWorkspaceScreenOrder(mLauncher, mScreenOrder); 1713 1714 // Re-enable auto layout transitions for page deletion. 1715 setLayoutTransition(mLayoutTransition); 1716 } 1717 1718 Animator getChangeStateAnimation(final State state, boolean animated, int delay) { 1719 if (mState == state) { 1720 return null; 1721 } 1722 1723 // Initialize animation arrays for the first time if necessary 1724 initAnimationArrays(); 1725 1726 AnimatorSet anim = animated ? LauncherAnimUtils.createAnimatorSet() : null; 1727 1728 // Stop any scrolling, move to the current page right away 1729 setCurrentPage(getNextPage()); 1730 1731 final State oldState = mState; 1732 final boolean oldStateIsNormal = (oldState == State.NORMAL); 1733 final boolean oldStateIsSpringLoaded = (oldState == State.SPRING_LOADED); 1734 final boolean oldStateIsSmall = (oldState == State.SMALL); 1735 mState = state; 1736 final boolean stateIsNormal = (state == State.NORMAL); 1737 final boolean stateIsSpringLoaded = (state == State.SPRING_LOADED); 1738 final boolean stateIsSmall = (state == State.SMALL); 1739 float finalBackgroundAlpha = stateIsSpringLoaded ? 1.0f : 0f; 1740 boolean zoomIn = true; 1741 mNewScale = 1.0f; 1742 1743 if (state != State.NORMAL) { 1744 mNewScale = mSpringLoadedShrinkFactor - (stateIsSmall ? 0.1f : 0); 1745 if (oldStateIsNormal && stateIsSmall) { 1746 zoomIn = false; 1747 updateChildrenLayersEnabled(false); 1748 } else { 1749 finalBackgroundAlpha = 1.0f; 1750 } 1751 } 1752 final int duration = zoomIn ? 1753 getResources().getInteger(R.integer.config_workspaceUnshrinkTime) : 1754 getResources().getInteger(R.integer.config_appsCustomizeWorkspaceShrinkTime); 1755 for (int i = 0; i < getChildCount(); i++) { 1756 final CellLayout cl = (CellLayout) getChildAt(i); 1757 float finalAlpha = (!mWorkspaceFadeInAdjacentScreens || stateIsSpringLoaded || 1758 (i == mCurrentPage)) ? 1f : 0f; 1759 float currentAlpha = cl.getShortcutsAndWidgets().getAlpha(); 1760 float initialAlpha = currentAlpha; 1761 1762 // Determine the pages alpha during the state transition 1763 if ((oldStateIsSmall && stateIsNormal) || 1764 (oldStateIsNormal && stateIsSmall)) { 1765 // To/from workspace - only show the current page unless the transition is not 1766 // animated and the animation end callback below doesn't run; 1767 // or, if we're in spring-loaded mode 1768 if (i == mCurrentPage || !animated || oldStateIsSpringLoaded) { 1769 finalAlpha = 1f; 1770 } else { 1771 initialAlpha = 0f; 1772 finalAlpha = 0f; 1773 } 1774 } 1775 1776 mOldAlphas[i] = initialAlpha; 1777 mNewAlphas[i] = finalAlpha; 1778 if (animated) { 1779 mOldBackgroundAlphas[i] = cl.getBackgroundAlpha(); 1780 mNewBackgroundAlphas[i] = finalBackgroundAlpha; 1781 } else { 1782 setScaleX(mNewScale); 1783 setScaleY(mNewScale); 1784 cl.setBackgroundAlpha(finalBackgroundAlpha); 1785 cl.setShortcutAndWidgetAlpha(finalAlpha); 1786 } 1787 } 1788 1789 if (animated) { 1790 LauncherViewPropertyAnimator scale = new LauncherViewPropertyAnimator(this); 1791 scale.scaleX(mNewScale) 1792 .scaleY(mNewScale) 1793 .setInterpolator(mZoomInInterpolator); 1794 anim.play(scale); 1795 for (int index = 0; index < getChildCount(); index++) { 1796 final int i = index; 1797 final CellLayout cl = (CellLayout) getChildAt(i); 1798 float currentAlpha = cl.getShortcutsAndWidgets().getAlpha(); 1799 if (mOldAlphas[i] == 0 && mNewAlphas[i] == 0) { 1800 cl.setBackgroundAlpha(mNewBackgroundAlphas[i]); 1801 cl.setShortcutAndWidgetAlpha(mNewAlphas[i]); 1802 } else { 1803 1804 if (mOldAlphas[i] != mNewAlphas[i] || currentAlpha != mNewAlphas[i]) { 1805 LauncherViewPropertyAnimator alphaAnim = 1806 new LauncherViewPropertyAnimator(cl.getShortcutsAndWidgets()); 1807 alphaAnim.alpha(mNewAlphas[i]) 1808 .setDuration(duration) 1809 .setInterpolator(mZoomInInterpolator); 1810 anim.play(alphaAnim); 1811 } 1812 if (mOldBackgroundAlphas[i] != 0 || 1813 mNewBackgroundAlphas[i] != 0) { 1814 ValueAnimator bgAnim = 1815 LauncherAnimUtils.ofFloat(cl, 0f, 1f).setDuration(duration); 1816 bgAnim.setInterpolator(mZoomInInterpolator); 1817 bgAnim.addUpdateListener(new LauncherAnimatorUpdateListener() { 1818 public void onAnimationUpdate(float a, float b) { 1819 cl.setBackgroundAlpha( 1820 a * mOldBackgroundAlphas[i] + 1821 b * mNewBackgroundAlphas[i]); 1822 } 1823 }); 1824 anim.play(bgAnim); 1825 } 1826 } 1827 } 1828 anim.setStartDelay(delay); 1829 } 1830 1831 if (stateIsSpringLoaded) { 1832 // Right now we're covered by Apps Customize 1833 // Show the background gradient immediately, so the gradient will 1834 // be showing once AppsCustomize disappears 1835 animateBackgroundGradient(getResources().getInteger( 1836 R.integer.config_appsCustomizeSpringLoadedBgAlpha) / 100f, false); 1837 } else { 1838 // Fade the background gradient away 1839 animateBackgroundGradient(0f, true); 1840 } 1841 return anim; 1842 } 1843 1844 @Override 1845 public void onLauncherTransitionPrepare(Launcher l, boolean animated, boolean toWorkspace) { 1846 mIsSwitchingState = true; 1847 updateChildrenLayersEnabled(false); 1848 } 1849 1850 @Override 1851 public void onLauncherTransitionStart(Launcher l, boolean animated, boolean toWorkspace) { 1852 } 1853 1854 @Override 1855 public void onLauncherTransitionStep(Launcher l, float t) { 1856 mTransitionProgress = t; 1857 } 1858 1859 @Override 1860 public void onLauncherTransitionEnd(Launcher l, boolean animated, boolean toWorkspace) { 1861 mIsSwitchingState = false; 1862 mWallpaperOffset.setOverrideHorizontalCatchupConstant(false); 1863 updateChildrenLayersEnabled(false); 1864 // The code in getChangeStateAnimation to determine initialAlpha and finalAlpha will ensure 1865 // ensure that only the current page is visible during (and subsequently, after) the 1866 // transition animation. If fade adjacent pages is disabled, then re-enable the page 1867 // visibility after the transition animation. 1868 if (!mWorkspaceFadeInAdjacentScreens) { 1869 for (int i = 0; i < getChildCount(); i++) { 1870 final CellLayout cl = (CellLayout) getChildAt(i); 1871 cl.setShortcutAndWidgetAlpha(1f); 1872 } 1873 } 1874 } 1875 1876 @Override 1877 public View getContent() { 1878 return this; 1879 } 1880 1881 /** 1882 * Draw the View v into the given Canvas. 1883 * 1884 * @param v the view to draw 1885 * @param destCanvas the canvas to draw on 1886 * @param padding the horizontal and vertical padding to use when drawing 1887 */ 1888 private void drawDragView(View v, Canvas destCanvas, int padding, boolean pruneToDrawable) { 1889 final Rect clipRect = mTempRect; 1890 v.getDrawingRect(clipRect); 1891 1892 boolean textVisible = false; 1893 1894 destCanvas.save(); 1895 if (v instanceof TextView && pruneToDrawable) { 1896 Drawable d = ((TextView) v).getCompoundDrawables()[1]; 1897 clipRect.set(0, 0, d.getIntrinsicWidth() + padding, d.getIntrinsicHeight() + padding); 1898 destCanvas.translate(padding / 2, padding / 2); 1899 d.draw(destCanvas); 1900 } else { 1901 if (v instanceof FolderIcon) { 1902 // For FolderIcons the text can bleed into the icon area, and so we need to 1903 // hide the text completely (which can't be achieved by clipping). 1904 if (((FolderIcon) v).getTextVisible()) { 1905 ((FolderIcon) v).setTextVisible(false); 1906 textVisible = true; 1907 } 1908 } else if (v instanceof BubbleTextView) { 1909 final BubbleTextView tv = (BubbleTextView) v; 1910 clipRect.bottom = tv.getExtendedPaddingTop() - (int) BubbleTextView.PADDING_V + 1911 tv.getLayout().getLineTop(0); 1912 } else if (v instanceof TextView) { 1913 final TextView tv = (TextView) v; 1914 clipRect.bottom = tv.getExtendedPaddingTop() - tv.getCompoundDrawablePadding() + 1915 tv.getLayout().getLineTop(0); 1916 } 1917 destCanvas.translate(-v.getScrollX() + padding / 2, -v.getScrollY() + padding / 2); 1918 destCanvas.clipRect(clipRect, Op.REPLACE); 1919 v.draw(destCanvas); 1920 1921 // Restore text visibility of FolderIcon if necessary 1922 if (textVisible) { 1923 ((FolderIcon) v).setTextVisible(true); 1924 } 1925 } 1926 destCanvas.restore(); 1927 } 1928 1929 /** 1930 * Returns a new bitmap to show when the given View is being dragged around. 1931 * Responsibility for the bitmap is transferred to the caller. 1932 */ 1933 public Bitmap createDragBitmap(View v, Canvas canvas, int padding) { 1934 Bitmap b; 1935 1936 if (v instanceof TextView) { 1937 Drawable d = ((TextView) v).getCompoundDrawables()[1]; 1938 b = Bitmap.createBitmap(d.getIntrinsicWidth() + padding, 1939 d.getIntrinsicHeight() + padding, Bitmap.Config.ARGB_8888); 1940 } else { 1941 b = Bitmap.createBitmap( 1942 v.getWidth() + padding, v.getHeight() + padding, Bitmap.Config.ARGB_8888); 1943 } 1944 1945 canvas.setBitmap(b); 1946 drawDragView(v, canvas, padding, true); 1947 canvas.setBitmap(null); 1948 1949 return b; 1950 } 1951 1952 /** 1953 * Returns a new bitmap to be used as the object outline, e.g. to visualize the drop location. 1954 * Responsibility for the bitmap is transferred to the caller. 1955 */ 1956 private Bitmap createDragOutline(View v, Canvas canvas, int padding) { 1957 final int outlineColor = getResources().getColor(android.R.color.holo_blue_light); 1958 final Bitmap b = Bitmap.createBitmap( 1959 v.getWidth() + padding, v.getHeight() + padding, Bitmap.Config.ARGB_8888); 1960 1961 canvas.setBitmap(b); 1962 drawDragView(v, canvas, padding, true); 1963 mOutlineHelper.applyMediumExpensiveOutlineWithBlur(b, canvas, outlineColor, outlineColor); 1964 canvas.setBitmap(null); 1965 return b; 1966 } 1967 1968 /** 1969 * Returns a new bitmap to be used as the object outline, e.g. to visualize the drop location. 1970 * Responsibility for the bitmap is transferred to the caller. 1971 */ 1972 private Bitmap createDragOutline(Bitmap orig, Canvas canvas, int padding, int w, int h, 1973 boolean clipAlpha) { 1974 final int outlineColor = getResources().getColor(android.R.color.holo_blue_light); 1975 final Bitmap b = Bitmap.createBitmap(w, h, Bitmap.Config.ARGB_8888); 1976 canvas.setBitmap(b); 1977 1978 Rect src = new Rect(0, 0, orig.getWidth(), orig.getHeight()); 1979 float scaleFactor = Math.min((w - padding) / (float) orig.getWidth(), 1980 (h - padding) / (float) orig.getHeight()); 1981 int scaledWidth = (int) (scaleFactor * orig.getWidth()); 1982 int scaledHeight = (int) (scaleFactor * orig.getHeight()); 1983 Rect dst = new Rect(0, 0, scaledWidth, scaledHeight); 1984 1985 // center the image 1986 dst.offset((w - scaledWidth) / 2, (h - scaledHeight) / 2); 1987 1988 canvas.drawBitmap(orig, src, dst, null); 1989 mOutlineHelper.applyMediumExpensiveOutlineWithBlur(b, canvas, outlineColor, outlineColor, 1990 clipAlpha); 1991 canvas.setBitmap(null); 1992 1993 return b; 1994 } 1995 1996 void startDrag(CellLayout.CellInfo cellInfo) { 1997 View child = cellInfo.cell; 1998 1999 // Make sure the drag was started by a long press as opposed to a long click. 2000 if (!child.isInTouchMode()) { 2001 return; 2002 } 2003 2004 mDragInfo = cellInfo; 2005 child.setVisibility(INVISIBLE); 2006 CellLayout layout = (CellLayout) child.getParent().getParent(); 2007 layout.prepareChildForDrag(child); 2008 2009 child.clearFocus(); 2010 child.setPressed(false); 2011 2012 final Canvas canvas = new Canvas(); 2013 2014 // The outline is used to visualize where the item will land if dropped 2015 mDragOutline = createDragOutline(child, canvas, DRAG_BITMAP_PADDING); 2016 beginDragShared(child, this); 2017 } 2018 2019 public void beginDragShared(View child, DragSource source) { 2020 Resources r = getResources(); 2021 2022 // The drag bitmap follows the touch point around on the screen 2023 final Bitmap b = createDragBitmap(child, new Canvas(), DRAG_BITMAP_PADDING); 2024 2025 final int bmpWidth = b.getWidth(); 2026 final int bmpHeight = b.getHeight(); 2027 2028 float scale = mLauncher.getDragLayer().getLocationInDragLayer(child, mTempXY); 2029 int dragLayerX = 2030 Math.round(mTempXY[0] - (bmpWidth - scale * child.getWidth()) / 2); 2031 int dragLayerY = 2032 Math.round(mTempXY[1] - (bmpHeight - scale * bmpHeight) / 2 2033 - DRAG_BITMAP_PADDING / 2); 2034 2035 Point dragVisualizeOffset = null; 2036 Rect dragRect = null; 2037 if (child instanceof BubbleTextView || child instanceof PagedViewIcon) { 2038 int iconSize = r.getDimensionPixelSize(R.dimen.app_icon_size); 2039 int iconPaddingTop = r.getDimensionPixelSize(R.dimen.app_icon_padding_top); 2040 int top = child.getPaddingTop(); 2041 int left = (bmpWidth - iconSize) / 2; 2042 int right = left + iconSize; 2043 int bottom = top + iconSize; 2044 dragLayerY += top; 2045 // Note: The drag region is used to calculate drag layer offsets, but the 2046 // dragVisualizeOffset in addition to the dragRect (the size) to position the outline. 2047 dragVisualizeOffset = new Point(-DRAG_BITMAP_PADDING / 2, 2048 iconPaddingTop - DRAG_BITMAP_PADDING / 2); 2049 dragRect = new Rect(left, top, right, bottom); 2050 } else if (child instanceof FolderIcon) { 2051 int previewSize = r.getDimensionPixelSize(R.dimen.folder_preview_size); 2052 dragRect = new Rect(0, 0, child.getWidth(), previewSize); 2053 } 2054 2055 // Clear the pressed state if necessary 2056 if (child instanceof BubbleTextView) { 2057 BubbleTextView icon = (BubbleTextView) child; 2058 icon.clearPressedOrFocusedBackground(); 2059 } 2060 2061 mDragController.startDrag(b, dragLayerX, dragLayerY, source, child.getTag(), 2062 DragController.DRAG_ACTION_MOVE, dragVisualizeOffset, dragRect, scale); 2063 b.recycle(); 2064 } 2065 2066 void addApplicationShortcut(ShortcutInfo info, CellLayout target, long container, long screenId, 2067 int cellX, int cellY, boolean insertAtFirst, int intersectX, int intersectY) { 2068 View view = mLauncher.createShortcut(R.layout.application, target, (ShortcutInfo) info); 2069 2070 final int[] cellXY = new int[2]; 2071 target.findCellForSpanThatIntersects(cellXY, 1, 1, intersectX, intersectY); 2072 addInScreen(view, container, screenId, cellXY[0], cellXY[1], 1, 1, insertAtFirst); 2073 2074 LauncherModel.addOrMoveItemInDatabase(mLauncher, info, container, screenId, cellXY[0], 2075 cellXY[1]); 2076 } 2077 2078 public boolean transitionStateShouldAllowDrop() { 2079 return ((!isSwitchingState() || mTransitionProgress > 0.5f) && mState != State.SMALL); 2080 } 2081 2082 /** 2083 * {@inheritDoc} 2084 */ 2085 public boolean acceptDrop(DragObject d) { 2086 // If it's an external drop (e.g. from All Apps), check if it should be accepted 2087 CellLayout dropTargetLayout = mDropToLayout; 2088 if (d.dragSource != this) { 2089 // Don't accept the drop if we're not over a screen at time of drop 2090 if (dropTargetLayout == null) { 2091 return false; 2092 } 2093 if (!transitionStateShouldAllowDrop()) return false; 2094 2095 mDragViewVisualCenter = getDragViewVisualCenter(d.x, d.y, d.xOffset, d.yOffset, 2096 d.dragView, mDragViewVisualCenter); 2097 2098 // We want the point to be mapped to the dragTarget. 2099 if (mLauncher.isHotseatLayout(dropTargetLayout)) { 2100 mapPointFromSelfToHotseatLayout(mLauncher.getHotseat(), mDragViewVisualCenter); 2101 } else { 2102 mapPointFromSelfToChild(dropTargetLayout, mDragViewVisualCenter, null); 2103 } 2104 2105 int spanX = 1; 2106 int spanY = 1; 2107 if (mDragInfo != null) { 2108 final CellLayout.CellInfo dragCellInfo = mDragInfo; 2109 spanX = dragCellInfo.spanX; 2110 spanY = dragCellInfo.spanY; 2111 } else { 2112 final ItemInfo dragInfo = (ItemInfo) d.dragInfo; 2113 spanX = dragInfo.spanX; 2114 spanY = dragInfo.spanY; 2115 } 2116 2117 int minSpanX = spanX; 2118 int minSpanY = spanY; 2119 if (d.dragInfo instanceof PendingAddWidgetInfo) { 2120 minSpanX = ((PendingAddWidgetInfo) d.dragInfo).minSpanX; 2121 minSpanY = ((PendingAddWidgetInfo) d.dragInfo).minSpanY; 2122 } 2123 2124 mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], 2125 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, dropTargetLayout, 2126 mTargetCell); 2127 float distance = dropTargetLayout.getDistanceFromCell(mDragViewVisualCenter[0], 2128 mDragViewVisualCenter[1], mTargetCell); 2129 if (willCreateUserFolder((ItemInfo) d.dragInfo, dropTargetLayout, 2130 mTargetCell, distance, true)) { 2131 return true; 2132 } 2133 if (willAddToExistingUserFolder((ItemInfo) d.dragInfo, dropTargetLayout, 2134 mTargetCell, distance)) { 2135 return true; 2136 } 2137 2138 int[] resultSpan = new int[2]; 2139 mTargetCell = dropTargetLayout.createArea((int) mDragViewVisualCenter[0], 2140 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, spanX, spanY, 2141 null, mTargetCell, resultSpan, CellLayout.MODE_ACCEPT_DROP); 2142 boolean foundCell = mTargetCell[0] >= 0 && mTargetCell[1] >= 0; 2143 2144 // Don't accept the drop if there's no room for the item 2145 if (!foundCell) { 2146 // Don't show the message if we are dropping on the AllApps button and the hotseat 2147 // is full 2148 boolean isHotseat = mLauncher.isHotseatLayout(dropTargetLayout); 2149 if (mTargetCell != null && isHotseat) { 2150 Hotseat hotseat = mLauncher.getHotseat(); 2151 if (hotseat.isAllAppsButtonRank( 2152 hotseat.getOrderInHotseat(mTargetCell[0], mTargetCell[1]))) { 2153 return false; 2154 } 2155 } 2156 2157 mLauncher.showOutOfSpaceMessage(isHotseat); 2158 return false; 2159 } 2160 } 2161 2162 long screenId = getIdForScreen(dropTargetLayout); 2163 if (screenId == EXTRA_EMPTY_SCREEN_ID) { 2164 commitExtraEmptyScreen(); 2165 } 2166 2167 return true; 2168 } 2169 2170 boolean willCreateUserFolder(ItemInfo info, CellLayout target, int[] targetCell, float 2171 distance, boolean considerTimeout) { 2172 if (distance > mMaxDistanceForFolderCreation) return false; 2173 View dropOverView = target.getChildAt(targetCell[0], targetCell[1]); 2174 2175 if (dropOverView != null) { 2176 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) dropOverView.getLayoutParams(); 2177 if (lp.useTmpCoords && (lp.tmpCellX != lp.cellX || lp.tmpCellY != lp.tmpCellY)) { 2178 return false; 2179 } 2180 } 2181 2182 boolean hasntMoved = false; 2183 if (mDragInfo != null) { 2184 hasntMoved = dropOverView == mDragInfo.cell; 2185 } 2186 2187 if (dropOverView == null || hasntMoved || (considerTimeout && !mCreateUserFolderOnDrop)) { 2188 return false; 2189 } 2190 2191 boolean aboveShortcut = (dropOverView.getTag() instanceof ShortcutInfo); 2192 boolean willBecomeShortcut = 2193 (info.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPLICATION || 2194 info.itemType == LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT); 2195 2196 return (aboveShortcut && willBecomeShortcut); 2197 } 2198 2199 boolean willAddToExistingUserFolder(Object dragInfo, CellLayout target, int[] targetCell, 2200 float distance) { 2201 if (distance > mMaxDistanceForFolderCreation) return false; 2202 View dropOverView = target.getChildAt(targetCell[0], targetCell[1]); 2203 2204 if (dropOverView != null) { 2205 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) dropOverView.getLayoutParams(); 2206 if (lp.useTmpCoords && (lp.tmpCellX != lp.cellX || lp.tmpCellY != lp.tmpCellY)) { 2207 return false; 2208 } 2209 } 2210 2211 if (dropOverView instanceof FolderIcon) { 2212 FolderIcon fi = (FolderIcon) dropOverView; 2213 if (fi.acceptDrop(dragInfo)) { 2214 return true; 2215 } 2216 } 2217 return false; 2218 } 2219 2220 boolean createUserFolderIfNecessary(View newView, long container, CellLayout target, 2221 int[] targetCell, float distance, boolean external, DragView dragView, 2222 Runnable postAnimationRunnable) { 2223 if (distance > mMaxDistanceForFolderCreation) return false; 2224 View v = target.getChildAt(targetCell[0], targetCell[1]); 2225 2226 boolean hasntMoved = false; 2227 if (mDragInfo != null) { 2228 CellLayout cellParent = getParentCellLayoutForView(mDragInfo.cell); 2229 hasntMoved = (mDragInfo.cellX == targetCell[0] && 2230 mDragInfo.cellY == targetCell[1]) && (cellParent == target); 2231 } 2232 2233 if (v == null || hasntMoved || !mCreateUserFolderOnDrop) return false; 2234 mCreateUserFolderOnDrop = false; 2235 final long screenId = (targetCell == null) ? mDragInfo.screenId : getIdForScreen(target); 2236 2237 boolean aboveShortcut = (v.getTag() instanceof ShortcutInfo); 2238 boolean willBecomeShortcut = (newView.getTag() instanceof ShortcutInfo); 2239 2240 if (aboveShortcut && willBecomeShortcut) { 2241 ShortcutInfo sourceInfo = (ShortcutInfo) newView.getTag(); 2242 ShortcutInfo destInfo = (ShortcutInfo) v.getTag(); 2243 // if the drag started here, we need to remove it from the workspace 2244 if (!external) { 2245 getParentCellLayoutForView(mDragInfo.cell).removeView(mDragInfo.cell); 2246 } 2247 2248 Rect folderLocation = new Rect(); 2249 float scale = mLauncher.getDragLayer().getDescendantRectRelativeToSelf(v, folderLocation); 2250 target.removeView(v); 2251 2252 FolderIcon fi = 2253 mLauncher.addFolder(target, container, screenId, targetCell[0], targetCell[1]); 2254 destInfo.cellX = -1; 2255 destInfo.cellY = -1; 2256 sourceInfo.cellX = -1; 2257 sourceInfo.cellY = -1; 2258 2259 // If the dragView is null, we can't animate 2260 boolean animate = dragView != null; 2261 if (animate) { 2262 fi.performCreateAnimation(destInfo, v, sourceInfo, dragView, folderLocation, scale, 2263 postAnimationRunnable); 2264 } else { 2265 fi.addItem(destInfo); 2266 fi.addItem(sourceInfo); 2267 } 2268 return true; 2269 } 2270 return false; 2271 } 2272 2273 boolean addToExistingFolderIfNecessary(View newView, CellLayout target, int[] targetCell, 2274 float distance, DragObject d, boolean external) { 2275 if (distance > mMaxDistanceForFolderCreation) return false; 2276 2277 View dropOverView = target.getChildAt(targetCell[0], targetCell[1]); 2278 if (!mAddToExistingFolderOnDrop) return false; 2279 mAddToExistingFolderOnDrop = false; 2280 2281 if (dropOverView instanceof FolderIcon) { 2282 FolderIcon fi = (FolderIcon) dropOverView; 2283 if (fi.acceptDrop(d.dragInfo)) { 2284 fi.onDrop(d); 2285 2286 // if the drag started here, we need to remove it from the workspace 2287 if (!external) { 2288 getParentCellLayoutForView(mDragInfo.cell).removeView(mDragInfo.cell); 2289 } 2290 return true; 2291 } 2292 } 2293 return false; 2294 } 2295 2296 public void onDrop(final DragObject d) { 2297 mDragViewVisualCenter = getDragViewVisualCenter(d.x, d.y, d.xOffset, d.yOffset, d.dragView, 2298 mDragViewVisualCenter); 2299 2300 CellLayout dropTargetLayout = mDropToLayout; 2301 2302 // We want the point to be mapped to the dragTarget. 2303 if (dropTargetLayout != null) { 2304 if (mLauncher.isHotseatLayout(dropTargetLayout)) { 2305 mapPointFromSelfToHotseatLayout(mLauncher.getHotseat(), mDragViewVisualCenter); 2306 } else { 2307 mapPointFromSelfToChild(dropTargetLayout, mDragViewVisualCenter, null); 2308 } 2309 } 2310 2311 int snapScreen = -1; 2312 boolean resizeOnDrop = false; 2313 if (d.dragSource != this) { 2314 final int[] touchXY = new int[] { (int) mDragViewVisualCenter[0], 2315 (int) mDragViewVisualCenter[1] }; 2316 onDropExternal(touchXY, d.dragInfo, dropTargetLayout, false, d); 2317 } else if (mDragInfo != null) { 2318 final View cell = mDragInfo.cell; 2319 2320 Runnable resizeRunnable = null; 2321 if (dropTargetLayout != null && !d.cancelled) { 2322 // Move internally 2323 boolean hasMovedLayouts = (getParentCellLayoutForView(cell) != dropTargetLayout); 2324 boolean hasMovedIntoHotseat = mLauncher.isHotseatLayout(dropTargetLayout); 2325 long container = hasMovedIntoHotseat ? 2326 LauncherSettings.Favorites.CONTAINER_HOTSEAT : 2327 LauncherSettings.Favorites.CONTAINER_DESKTOP; 2328 long screenId = (mTargetCell[0] < 0) ? 2329 mDragInfo.screenId : getIdForScreen(dropTargetLayout); 2330 int spanX = mDragInfo != null ? mDragInfo.spanX : 1; 2331 int spanY = mDragInfo != null ? mDragInfo.spanY : 1; 2332 // First we find the cell nearest to point at which the item is 2333 // dropped, without any consideration to whether there is an item there. 2334 2335 mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], (int) 2336 mDragViewVisualCenter[1], spanX, spanY, dropTargetLayout, mTargetCell); 2337 float distance = dropTargetLayout.getDistanceFromCell(mDragViewVisualCenter[0], 2338 mDragViewVisualCenter[1], mTargetCell); 2339 2340 // If the item being dropped is a shortcut and the nearest drop 2341 // cell also contains a shortcut, then create a folder with the two shortcuts. 2342 if (!mInScrollArea && createUserFolderIfNecessary(cell, container, 2343 dropTargetLayout, mTargetCell, distance, false, d.dragView, null)) { 2344 stripEmptyScreens(); 2345 return; 2346 } 2347 2348 if (addToExistingFolderIfNecessary(cell, dropTargetLayout, mTargetCell, 2349 distance, d, false)) { 2350 stripEmptyScreens(); 2351 return; 2352 } 2353 2354 // Aside from the special case where we're dropping a shortcut onto a shortcut, 2355 // we need to find the nearest cell location that is vacant 2356 ItemInfo item = (ItemInfo) d.dragInfo; 2357 int minSpanX = item.spanX; 2358 int minSpanY = item.spanY; 2359 if (item.minSpanX > 0 && item.minSpanY > 0) { 2360 minSpanX = item.minSpanX; 2361 minSpanY = item.minSpanY; 2362 } 2363 2364 int[] resultSpan = new int[2]; 2365 mTargetCell = dropTargetLayout.createArea((int) mDragViewVisualCenter[0], 2366 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, spanX, spanY, cell, 2367 mTargetCell, resultSpan, CellLayout.MODE_ON_DROP); 2368 2369 boolean foundCell = mTargetCell[0] >= 0 && mTargetCell[1] >= 0; 2370 2371 // if the widget resizes on drop 2372 if (foundCell && (cell instanceof AppWidgetHostView) && 2373 (resultSpan[0] != item.spanX || resultSpan[1] != item.spanY)) { 2374 resizeOnDrop = true; 2375 item.spanX = resultSpan[0]; 2376 item.spanY = resultSpan[1]; 2377 AppWidgetHostView awhv = (AppWidgetHostView) cell; 2378 AppWidgetResizeFrame.updateWidgetSizeRanges(awhv, mLauncher, resultSpan[0], 2379 resultSpan[1]); 2380 } 2381 2382 if (getScreenIdForPageIndex(mCurrentPage) != screenId && !hasMovedIntoHotseat) { 2383 snapScreen = getPageIndexForScreenId(screenId); 2384 snapToPage(snapScreen); 2385 } 2386 2387 if (foundCell) { 2388 final ItemInfo info = (ItemInfo) cell.getTag(); 2389 if (hasMovedLayouts) { 2390 // Reparent the view 2391 getParentCellLayoutForView(cell).removeView(cell); 2392 addInScreen(cell, container, screenId, mTargetCell[0], mTargetCell[1], 2393 info.spanX, info.spanY); 2394 } 2395 2396 // update the item's position after drop 2397 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) cell.getLayoutParams(); 2398 lp.cellX = lp.tmpCellX = mTargetCell[0]; 2399 lp.cellY = lp.tmpCellY = mTargetCell[1]; 2400 lp.cellHSpan = item.spanX; 2401 lp.cellVSpan = item.spanY; 2402 lp.isLockedToGrid = true; 2403 cell.setId(LauncherModel.getCellLayoutChildId(container, mDragInfo.screenId, 2404 mTargetCell[0], mTargetCell[1], mDragInfo.spanX, mDragInfo.spanY)); 2405 2406 if (container != LauncherSettings.Favorites.CONTAINER_HOTSEAT && 2407 cell instanceof LauncherAppWidgetHostView) { 2408 final CellLayout cellLayout = dropTargetLayout; 2409 // We post this call so that the widget has a chance to be placed 2410 // in its final location 2411 2412 final LauncherAppWidgetHostView hostView = (LauncherAppWidgetHostView) cell; 2413 AppWidgetProviderInfo pinfo = hostView.getAppWidgetInfo(); 2414 if (pinfo != null && 2415 pinfo.resizeMode != AppWidgetProviderInfo.RESIZE_NONE) { 2416 final Runnable addResizeFrame = new Runnable() { 2417 public void run() { 2418 DragLayer dragLayer = mLauncher.getDragLayer(); 2419 dragLayer.addResizeFrame(info, hostView, cellLayout); 2420 } 2421 }; 2422 resizeRunnable = (new Runnable() { 2423 public void run() { 2424 if (!isPageMoving()) { 2425 addResizeFrame.run(); 2426 } else { 2427 mDelayedResizeRunnable = addResizeFrame; 2428 } 2429 } 2430 }); 2431 } 2432 } 2433 2434 LauncherModel.moveItemInDatabase(mLauncher, info, container, screenId, lp.cellX, 2435 lp.cellY); 2436 } else { 2437 // If we can't find a drop location, we return the item to its original position 2438 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) cell.getLayoutParams(); 2439 mTargetCell[0] = lp.cellX; 2440 mTargetCell[1] = lp.cellY; 2441 CellLayout layout = (CellLayout) cell.getParent().getParent(); 2442 layout.markCellsAsOccupiedForView(cell); 2443 } 2444 } 2445 2446 final CellLayout parent = (CellLayout) cell.getParent().getParent(); 2447 final Runnable finalResizeRunnable = resizeRunnable; 2448 // Prepare it to be animated into its new position 2449 // This must be called after the view has been re-parented 2450 final Runnable onCompleteRunnable = new Runnable() { 2451 @Override 2452 public void run() { 2453 mAnimatingViewIntoPlace = false; 2454 updateChildrenLayersEnabled(false); 2455 if (finalResizeRunnable != null) { 2456 finalResizeRunnable.run(); 2457 } 2458 stripEmptyScreens(); 2459 } 2460 }; 2461 mAnimatingViewIntoPlace = true; 2462 if (d.dragView.hasDrawn()) { 2463 final ItemInfo info = (ItemInfo) cell.getTag(); 2464 if (info.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET) { 2465 int animationType = resizeOnDrop ? ANIMATE_INTO_POSITION_AND_RESIZE : 2466 ANIMATE_INTO_POSITION_AND_DISAPPEAR; 2467 animateWidgetDrop(info, parent, d.dragView, 2468 onCompleteRunnable, animationType, cell, false); 2469 } else { 2470 int duration = snapScreen < 0 ? -1 : ADJACENT_SCREEN_DROP_DURATION; 2471 mLauncher.getDragLayer().animateViewIntoPosition(d.dragView, cell, duration, 2472 onCompleteRunnable, this); 2473 } 2474 } else { 2475 d.deferDragViewCleanupPostAnimation = false; 2476 cell.setVisibility(VISIBLE); 2477 } 2478 parent.onDropChild(cell); 2479 } 2480 } 2481 2482 public void setFinalScrollForPageChange(int pageIndex) { 2483 CellLayout cl = (CellLayout) getChildAt(pageIndex); 2484 if (cl != null) { 2485 mSavedScrollX = getScrollX(); 2486 mSavedTranslationX = cl.getTranslationX(); 2487 mSavedRotationY = cl.getRotationY(); 2488 final int newX = getScrollForPage(pageIndex); 2489 setScrollX(newX); 2490 cl.setTranslationX(0f); 2491 cl.setRotationY(0f); 2492 } 2493 } 2494 2495 public void resetFinalScrollForPageChange(int pageIndex) { 2496 if (pageIndex >= 0) { 2497 CellLayout cl = (CellLayout) getChildAt(pageIndex); 2498 setScrollX(mSavedScrollX); 2499 cl.setTranslationX(mSavedTranslationX); 2500 cl.setRotationY(mSavedRotationY); 2501 } 2502 } 2503 2504 public void getViewLocationRelativeToSelf(View v, int[] location) { 2505 getLocationInWindow(location); 2506 int x = location[0]; 2507 int y = location[1]; 2508 2509 v.getLocationInWindow(location); 2510 int vX = location[0]; 2511 int vY = location[1]; 2512 2513 location[0] = vX - x; 2514 location[1] = vY - y; 2515 } 2516 2517 public void onDragEnter(DragObject d) { 2518 mDragEnforcer.onDragEnter(); 2519 mCreateUserFolderOnDrop = false; 2520 mAddToExistingFolderOnDrop = false; 2521 2522 mDropToLayout = null; 2523 CellLayout layout = getCurrentDropLayout(); 2524 setCurrentDropLayout(layout); 2525 setCurrentDragOverlappingLayout(layout); 2526 2527 // Because we don't have space in the Phone UI (the CellLayouts run to the edge) we 2528 // don't need to show the outlines 2529 if (LauncherAppState.getInstance().isScreenLarge()) { 2530 showOutlines(); 2531 } 2532 } 2533 2534 static Rect getCellLayoutMetrics(Launcher launcher, int orientation) { 2535 Resources res = launcher.getResources(); 2536 Display display = launcher.getWindowManager().getDefaultDisplay(); 2537 Point smallestSize = new Point(); 2538 Point largestSize = new Point(); 2539 display.getCurrentSizeRange(smallestSize, largestSize); 2540 if (orientation == CellLayout.LANDSCAPE) { 2541 if (mLandscapeCellLayoutMetrics == null) { 2542 int paddingLeft = res.getDimensionPixelSize(R.dimen.workspace_left_padding_land); 2543 int paddingRight = res.getDimensionPixelSize(R.dimen.workspace_right_padding_land); 2544 int paddingTop = res.getDimensionPixelSize(R.dimen.workspace_top_padding_land); 2545 int paddingBottom = res.getDimensionPixelSize(R.dimen.workspace_bottom_padding_land); 2546 int width = largestSize.x - paddingLeft - paddingRight; 2547 int height = smallestSize.y - paddingTop - paddingBottom; 2548 mLandscapeCellLayoutMetrics = new Rect(); 2549 CellLayout.getMetrics(mLandscapeCellLayoutMetrics, res, 2550 width, height, LauncherModel.getCellCountX(), LauncherModel.getCellCountY(), 2551 orientation); 2552 } 2553 return mLandscapeCellLayoutMetrics; 2554 } else if (orientation == CellLayout.PORTRAIT) { 2555 if (mPortraitCellLayoutMetrics == null) { 2556 int paddingLeft = res.getDimensionPixelSize(R.dimen.workspace_left_padding_land); 2557 int paddingRight = res.getDimensionPixelSize(R.dimen.workspace_right_padding_land); 2558 int paddingTop = res.getDimensionPixelSize(R.dimen.workspace_top_padding_land); 2559 int paddingBottom = res.getDimensionPixelSize(R.dimen.workspace_bottom_padding_land); 2560 int width = smallestSize.x - paddingLeft - paddingRight; 2561 int height = largestSize.y - paddingTop - paddingBottom; 2562 mPortraitCellLayoutMetrics = new Rect(); 2563 CellLayout.getMetrics(mPortraitCellLayoutMetrics, res, 2564 width, height, LauncherModel.getCellCountX(), LauncherModel.getCellCountY(), 2565 orientation); 2566 } 2567 return mPortraitCellLayoutMetrics; 2568 } 2569 return null; 2570 } 2571 2572 public void onDragExit(DragObject d) { 2573 mDragEnforcer.onDragExit(); 2574 2575 // Here we store the final page that will be dropped to, if the workspace in fact 2576 // receives the drop 2577 if (mInScrollArea) { 2578 if (isPageMoving()) { 2579 // If the user drops while the page is scrolling, we should use that page as the 2580 // destination instead of the page that is being hovered over. 2581 mDropToLayout = (CellLayout) getPageAt(getNextPage()); 2582 } else { 2583 mDropToLayout = mDragOverlappingLayout; 2584 } 2585 } else { 2586 mDropToLayout = mDragTargetLayout; 2587 } 2588 2589 if (mDragMode == DRAG_MODE_CREATE_FOLDER) { 2590 mCreateUserFolderOnDrop = true; 2591 } else if (mDragMode == DRAG_MODE_ADD_TO_FOLDER) { 2592 mAddToExistingFolderOnDrop = true; 2593 } 2594 2595 // Reset the scroll area and previous drag target 2596 onResetScrollArea(); 2597 setCurrentDropLayout(null); 2598 setCurrentDragOverlappingLayout(null); 2599 2600 mSpringLoadedDragController.cancel(); 2601 2602 if (!mIsPageMoving) { 2603 hideOutlines(); 2604 } 2605 } 2606 2607 void setCurrentDropLayout(CellLayout layout) { 2608 if (mDragTargetLayout != null) { 2609 mDragTargetLayout.revertTempState(); 2610 mDragTargetLayout.onDragExit(); 2611 } 2612 mDragTargetLayout = layout; 2613 if (mDragTargetLayout != null) { 2614 mDragTargetLayout.onDragEnter(); 2615 } 2616 cleanupReorder(true); 2617 cleanupFolderCreation(); 2618 setCurrentDropOverCell(-1, -1); 2619 } 2620 2621 void setCurrentDragOverlappingLayout(CellLayout layout) { 2622 if (mDragOverlappingLayout != null) { 2623 mDragOverlappingLayout.setIsDragOverlapping(false); 2624 } 2625 mDragOverlappingLayout = layout; 2626 if (mDragOverlappingLayout != null) { 2627 mDragOverlappingLayout.setIsDragOverlapping(true); 2628 } 2629 invalidate(); 2630 } 2631 2632 void setCurrentDropOverCell(int x, int y) { 2633 if (x != mDragOverX || y != mDragOverY) { 2634 mDragOverX = x; 2635 mDragOverY = y; 2636 setDragMode(DRAG_MODE_NONE); 2637 } 2638 } 2639 2640 void setDragMode(int dragMode) { 2641 if (dragMode != mDragMode) { 2642 if (dragMode == DRAG_MODE_NONE) { 2643 cleanupAddToFolder(); 2644 // We don't want to cancel the re-order alarm every time the target cell changes 2645 // as this feels to slow / unresponsive. 2646 cleanupReorder(false); 2647 cleanupFolderCreation(); 2648 } else if (dragMode == DRAG_MODE_ADD_TO_FOLDER) { 2649 cleanupReorder(true); 2650 cleanupFolderCreation(); 2651 } else if (dragMode == DRAG_MODE_CREATE_FOLDER) { 2652 cleanupAddToFolder(); 2653 cleanupReorder(true); 2654 } else if (dragMode == DRAG_MODE_REORDER) { 2655 cleanupAddToFolder(); 2656 cleanupFolderCreation(); 2657 } 2658 mDragMode = dragMode; 2659 } 2660 } 2661 2662 private void cleanupFolderCreation() { 2663 if (mDragFolderRingAnimator != null) { 2664 mDragFolderRingAnimator.animateToNaturalState(); 2665 } 2666 mFolderCreationAlarm.cancelAlarm(); 2667 } 2668 2669 private void cleanupAddToFolder() { 2670 if (mDragOverFolderIcon != null) { 2671 mDragOverFolderIcon.onDragExit(null); 2672 mDragOverFolderIcon = null; 2673 } 2674 } 2675 2676 private void cleanupReorder(boolean cancelAlarm) { 2677 // Any pending reorders are canceled 2678 if (cancelAlarm) { 2679 mReorderAlarm.cancelAlarm(); 2680 } 2681 mLastReorderX = -1; 2682 mLastReorderY = -1; 2683 } 2684 2685 /* 2686 * 2687 * Convert the 2D coordinate xy from the parent View's coordinate space to this CellLayout's 2688 * coordinate space. The argument xy is modified with the return result. 2689 * 2690 * if cachedInverseMatrix is not null, this method will just use that matrix instead of 2691 * computing it itself; we use this to avoid redundant matrix inversions in 2692 * findMatchingPageForDragOver 2693 * 2694 */ 2695 void mapPointFromSelfToChild(View v, float[] xy, Matrix cachedInverseMatrix) { 2696 xy[0] = xy[0] - v.getLeft(); 2697 xy[1] = xy[1] - v.getTop(); 2698 } 2699 2700 boolean isPointInSelfOverHotseat(int x, int y, Rect r) { 2701 if (r == null) { 2702 r = new Rect(); 2703 } 2704 mTempPt[0] = x; 2705 mTempPt[1] = y; 2706 mLauncher.getDragLayer().getDescendantCoordRelativeToSelf(this, mTempPt, true); 2707 mLauncher.getHotseat().getHitRect(r); 2708 if (r.contains(mTempPt[0], mTempPt[1])) { 2709 return true; 2710 } 2711 return false; 2712 } 2713 2714 void mapPointFromSelfToHotseatLayout(Hotseat hotseat, float[] xy) { 2715 mTempPt[0] = (int) xy[0]; 2716 mTempPt[1] = (int) xy[1]; 2717 mLauncher.getDragLayer().getDescendantCoordRelativeToSelf(this, mTempPt, true); 2718 mLauncher.getDragLayer().mapCoordInSelfToDescendent(hotseat.getLayout(), mTempPt); 2719 2720 xy[0] = mTempPt[0]; 2721 xy[1] = mTempPt[1]; 2722 } 2723 2724 /* 2725 * 2726 * Convert the 2D coordinate xy from this CellLayout's coordinate space to 2727 * the parent View's coordinate space. The argument xy is modified with the return result. 2728 * 2729 */ 2730 void mapPointFromChildToSelf(View v, float[] xy) { 2731 xy[0] += v.getLeft(); 2732 xy[1] += v.getTop(); 2733 } 2734 2735 static private float squaredDistance(float[] point1, float[] point2) { 2736 float distanceX = point1[0] - point2[0]; 2737 float distanceY = point2[1] - point2[1]; 2738 return distanceX * distanceX + distanceY * distanceY; 2739 } 2740 2741 /* 2742 * 2743 * This method returns the CellLayout that is currently being dragged to. In order to drag 2744 * to a CellLayout, either the touch point must be directly over the CellLayout, or as a second 2745 * strategy, we see if the dragView is overlapping any CellLayout and choose the closest one 2746 * 2747 * Return null if no CellLayout is currently being dragged over 2748 * 2749 */ 2750 private CellLayout findMatchingPageForDragOver( 2751 DragView dragView, float originX, float originY, boolean exact) { 2752 // We loop through all the screens (ie CellLayouts) and see which ones overlap 2753 // with the item being dragged and then choose the one that's closest to the touch point 2754 final int screenCount = getChildCount(); 2755 CellLayout bestMatchingScreen = null; 2756 float smallestDistSoFar = Float.MAX_VALUE; 2757 2758 for (int i = 0; i < screenCount; i++) { 2759 CellLayout cl = (CellLayout) getChildAt(i); 2760 2761 final float[] touchXy = {originX, originY}; 2762 // Transform the touch coordinates to the CellLayout's local coordinates 2763 // If the touch point is within the bounds of the cell layout, we can return immediately 2764 cl.getMatrix().invert(mTempInverseMatrix); 2765 mapPointFromSelfToChild(cl, touchXy, mTempInverseMatrix); 2766 2767 if (touchXy[0] >= 0 && touchXy[0] <= cl.getWidth() && 2768 touchXy[1] >= 0 && touchXy[1] <= cl.getHeight()) { 2769 return cl; 2770 } 2771 2772 if (!exact) { 2773 // Get the center of the cell layout in screen coordinates 2774 final float[] cellLayoutCenter = mTempCellLayoutCenterCoordinates; 2775 cellLayoutCenter[0] = cl.getWidth()/2; 2776 cellLayoutCenter[1] = cl.getHeight()/2; 2777 mapPointFromChildToSelf(cl, cellLayoutCenter); 2778 2779 touchXy[0] = originX; 2780 touchXy[1] = originY; 2781 2782 // Calculate the distance between the center of the CellLayout 2783 // and the touch point 2784 float dist = squaredDistance(touchXy, cellLayoutCenter); 2785 2786 if (dist < smallestDistSoFar) { 2787 smallestDistSoFar = dist; 2788 bestMatchingScreen = cl; 2789 } 2790 } 2791 } 2792 return bestMatchingScreen; 2793 } 2794 2795 // This is used to compute the visual center of the dragView. This point is then 2796 // used to visualize drop locations and determine where to drop an item. The idea is that 2797 // the visual center represents the user's interpretation of where the item is, and hence 2798 // is the appropriate point to use when determining drop location. 2799 private float[] getDragViewVisualCenter(int x, int y, int xOffset, int yOffset, 2800 DragView dragView, float[] recycle) { 2801 float res[]; 2802 if (recycle == null) { 2803 res = new float[2]; 2804 } else { 2805 res = recycle; 2806 } 2807 2808 // First off, the drag view has been shifted in a way that is not represented in the 2809 // x and y values or the x/yOffsets. Here we account for that shift. 2810 x += getResources().getDimensionPixelSize(R.dimen.dragViewOffsetX); 2811 y += getResources().getDimensionPixelSize(R.dimen.dragViewOffsetY); 2812 2813 // These represent the visual top and left of drag view if a dragRect was provided. 2814 // If a dragRect was not provided, then they correspond to the actual view left and 2815 // top, as the dragRect is in that case taken to be the entire dragView. 2816 // R.dimen.dragViewOffsetY. 2817 int left = x - xOffset; 2818 int top = y - yOffset; 2819 2820 // In order to find the visual center, we shift by half the dragRect 2821 res[0] = left + dragView.getDragRegion().width() / 2; 2822 res[1] = top + dragView.getDragRegion().height() / 2; 2823 2824 return res; 2825 } 2826 2827 private boolean isDragWidget(DragObject d) { 2828 return (d.dragInfo instanceof LauncherAppWidgetInfo || 2829 d.dragInfo instanceof PendingAddWidgetInfo); 2830 } 2831 private boolean isExternalDragWidget(DragObject d) { 2832 return d.dragSource != this && isDragWidget(d); 2833 } 2834 2835 public void onDragOver(DragObject d) { 2836 // Skip drag over events while we are dragging over side pages 2837 if (mInScrollArea || mIsSwitchingState || mState == State.SMALL) return; 2838 2839 Rect r = new Rect(); 2840 CellLayout layout = null; 2841 ItemInfo item = (ItemInfo) d.dragInfo; 2842 2843 // Ensure that we have proper spans for the item that we are dropping 2844 if (item.spanX < 0 || item.spanY < 0) throw new RuntimeException("Improper spans found"); 2845 mDragViewVisualCenter = getDragViewVisualCenter(d.x, d.y, d.xOffset, d.yOffset, 2846 d.dragView, mDragViewVisualCenter); 2847 2848 final View child = (mDragInfo == null) ? null : mDragInfo.cell; 2849 // Identify whether we have dragged over a side page 2850 if (isSmall()) { 2851 if (mLauncher.getHotseat() != null && !isExternalDragWidget(d)) { 2852 if (isPointInSelfOverHotseat(d.x, d.y, r)) { 2853 layout = mLauncher.getHotseat().getLayout(); 2854 } 2855 } 2856 if (layout == null) { 2857 layout = findMatchingPageForDragOver(d.dragView, d.x, d.y, false); 2858 } 2859 if (layout != mDragTargetLayout) { 2860 setCurrentDropLayout(layout); 2861 setCurrentDragOverlappingLayout(layout); 2862 2863 boolean isInSpringLoadedMode = (mState == State.SPRING_LOADED); 2864 if (isInSpringLoadedMode) { 2865 if (mLauncher.isHotseatLayout(layout)) { 2866 mSpringLoadedDragController.cancel(); 2867 } else { 2868 mSpringLoadedDragController.setAlarm(mDragTargetLayout); 2869 } 2870 } 2871 } 2872 } else { 2873 // Test to see if we are over the hotseat otherwise just use the current page 2874 if (mLauncher.getHotseat() != null && !isDragWidget(d)) { 2875 if (isPointInSelfOverHotseat(d.x, d.y, r)) { 2876 layout = mLauncher.getHotseat().getLayout(); 2877 } 2878 } 2879 if (layout == null) { 2880 layout = getCurrentDropLayout(); 2881 } 2882 if (layout != mDragTargetLayout) { 2883 setCurrentDropLayout(layout); 2884 setCurrentDragOverlappingLayout(layout); 2885 } 2886 } 2887 2888 // Handle the drag over 2889 if (mDragTargetLayout != null) { 2890 // We want the point to be mapped to the dragTarget. 2891 if (mLauncher.isHotseatLayout(mDragTargetLayout)) { 2892 mapPointFromSelfToHotseatLayout(mLauncher.getHotseat(), mDragViewVisualCenter); 2893 } else { 2894 mapPointFromSelfToChild(mDragTargetLayout, mDragViewVisualCenter, null); 2895 } 2896 2897 ItemInfo info = (ItemInfo) d.dragInfo; 2898 2899 mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], 2900 (int) mDragViewVisualCenter[1], item.spanX, item.spanY, 2901 mDragTargetLayout, mTargetCell); 2902 2903 setCurrentDropOverCell(mTargetCell[0], mTargetCell[1]); 2904 2905 float targetCellDistance = mDragTargetLayout.getDistanceFromCell( 2906 mDragViewVisualCenter[0], mDragViewVisualCenter[1], mTargetCell); 2907 2908 final View dragOverView = mDragTargetLayout.getChildAt(mTargetCell[0], 2909 mTargetCell[1]); 2910 2911 manageFolderFeedback(info, mDragTargetLayout, mTargetCell, 2912 targetCellDistance, dragOverView); 2913 2914 int minSpanX = item.spanX; 2915 int minSpanY = item.spanY; 2916 if (item.minSpanX > 0 && item.minSpanY > 0) { 2917 minSpanX = item.minSpanX; 2918 minSpanY = item.minSpanY; 2919 } 2920 2921 boolean nearestDropOccupied = mDragTargetLayout.isNearestDropLocationOccupied((int) 2922 mDragViewVisualCenter[0], (int) mDragViewVisualCenter[1], item.spanX, 2923 item.spanY, child, mTargetCell); 2924 2925 if (!nearestDropOccupied) { 2926 mDragTargetLayout.visualizeDropLocation(child, mDragOutline, 2927 (int) mDragViewVisualCenter[0], (int) mDragViewVisualCenter[1], 2928 mTargetCell[0], mTargetCell[1], item.spanX, item.spanY, false, 2929 d.dragView.getDragVisualizeOffset(), d.dragView.getDragRegion()); 2930 } else if ((mDragMode == DRAG_MODE_NONE || mDragMode == DRAG_MODE_REORDER) 2931 && !mReorderAlarm.alarmPending() && (mLastReorderX != mTargetCell[0] || 2932 mLastReorderY != mTargetCell[1])) { 2933 2934 // Otherwise, if we aren't adding to or creating a folder and there's no pending 2935 // reorder, then we schedule a reorder 2936 ReorderAlarmListener listener = new ReorderAlarmListener(mDragViewVisualCenter, 2937 minSpanX, minSpanY, item.spanX, item.spanY, d.dragView, child); 2938 mReorderAlarm.setOnAlarmListener(listener); 2939 mReorderAlarm.setAlarm(REORDER_TIMEOUT); 2940 } 2941 2942 if (mDragMode == DRAG_MODE_CREATE_FOLDER || mDragMode == DRAG_MODE_ADD_TO_FOLDER || 2943 !nearestDropOccupied) { 2944 if (mDragTargetLayout != null) { 2945 mDragTargetLayout.revertTempState(); 2946 } 2947 } 2948 } 2949 } 2950 2951 private void manageFolderFeedback(ItemInfo info, CellLayout targetLayout, 2952 int[] targetCell, float distance, View dragOverView) { 2953 boolean userFolderPending = willCreateUserFolder(info, targetLayout, targetCell, distance, 2954 false); 2955 2956 if (mDragMode == DRAG_MODE_NONE && userFolderPending && 2957 !mFolderCreationAlarm.alarmPending()) { 2958 mFolderCreationAlarm.setOnAlarmListener(new 2959 FolderCreationAlarmListener(targetLayout, targetCell[0], targetCell[1])); 2960 mFolderCreationAlarm.setAlarm(FOLDER_CREATION_TIMEOUT); 2961 return; 2962 } 2963 2964 boolean willAddToFolder = 2965 willAddToExistingUserFolder(info, targetLayout, targetCell, distance); 2966 2967 if (willAddToFolder && mDragMode == DRAG_MODE_NONE) { 2968 mDragOverFolderIcon = ((FolderIcon) dragOverView); 2969 mDragOverFolderIcon.onDragEnter(info); 2970 if (targetLayout != null) { 2971 targetLayout.clearDragOutlines(); 2972 } 2973 setDragMode(DRAG_MODE_ADD_TO_FOLDER); 2974 return; 2975 } 2976 2977 if (mDragMode == DRAG_MODE_ADD_TO_FOLDER && !willAddToFolder) { 2978 setDragMode(DRAG_MODE_NONE); 2979 } 2980 if (mDragMode == DRAG_MODE_CREATE_FOLDER && !userFolderPending) { 2981 setDragMode(DRAG_MODE_NONE); 2982 } 2983 2984 return; 2985 } 2986 2987 class FolderCreationAlarmListener implements OnAlarmListener { 2988 CellLayout layout; 2989 int cellX; 2990 int cellY; 2991 2992 public FolderCreationAlarmListener(CellLayout layout, int cellX, int cellY) { 2993 this.layout = layout; 2994 this.cellX = cellX; 2995 this.cellY = cellY; 2996 } 2997 2998 public void onAlarm(Alarm alarm) { 2999 if (mDragFolderRingAnimator == null) { 3000 mDragFolderRingAnimator = new FolderRingAnimator(mLauncher, null); 3001 } 3002 mDragFolderRingAnimator.setCell(cellX, cellY); 3003 mDragFolderRingAnimator.setCellLayout(layout); 3004 mDragFolderRingAnimator.animateToAcceptState(); 3005 layout.showFolderAccept(mDragFolderRingAnimator); 3006 layout.clearDragOutlines(); 3007 setDragMode(DRAG_MODE_CREATE_FOLDER); 3008 } 3009 } 3010 3011 class ReorderAlarmListener implements OnAlarmListener { 3012 float[] dragViewCenter; 3013 int minSpanX, minSpanY, spanX, spanY; 3014 DragView dragView; 3015 View child; 3016 3017 public ReorderAlarmListener(float[] dragViewCenter, int minSpanX, int minSpanY, int spanX, 3018 int spanY, DragView dragView, View child) { 3019 this.dragViewCenter = dragViewCenter; 3020 this.minSpanX = minSpanX; 3021 this.minSpanY = minSpanY; 3022 this.spanX = spanX; 3023 this.spanY = spanY; 3024 this.child = child; 3025 this.dragView = dragView; 3026 } 3027 3028 public void onAlarm(Alarm alarm) { 3029 int[] resultSpan = new int[2]; 3030 mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], 3031 (int) mDragViewVisualCenter[1], spanX, spanY, mDragTargetLayout, mTargetCell); 3032 mLastReorderX = mTargetCell[0]; 3033 mLastReorderY = mTargetCell[1]; 3034 3035 mTargetCell = mDragTargetLayout.createArea((int) mDragViewVisualCenter[0], 3036 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, spanX, spanY, 3037 child, mTargetCell, resultSpan, CellLayout.MODE_DRAG_OVER); 3038 3039 if (mTargetCell[0] < 0 || mTargetCell[1] < 0) { 3040 mDragTargetLayout.revertTempState(); 3041 } else { 3042 setDragMode(DRAG_MODE_REORDER); 3043 } 3044 3045 boolean resize = resultSpan[0] != spanX || resultSpan[1] != spanY; 3046 mDragTargetLayout.visualizeDropLocation(child, mDragOutline, 3047 (int) mDragViewVisualCenter[0], (int) mDragViewVisualCenter[1], 3048 mTargetCell[0], mTargetCell[1], resultSpan[0], resultSpan[1], resize, 3049 dragView.getDragVisualizeOffset(), dragView.getDragRegion()); 3050 } 3051 } 3052 3053 @Override 3054 public void getHitRectRelativeToDragLayer(Rect outRect) { 3055 // We want the workspace to have the whole area of the display (it will find the correct 3056 // cell layout to drop to in the existing drag/drop logic. 3057 mLauncher.getDragLayer().getDescendantRectRelativeToSelf(this, outRect); 3058 } 3059 3060 /** 3061 * Add the item specified by dragInfo to the given layout. 3062 * @return true if successful 3063 */ 3064 public boolean addExternalItemToScreen(ItemInfo dragInfo, CellLayout layout) { 3065 if (layout.findCellForSpan(mTempEstimate, dragInfo.spanX, dragInfo.spanY)) { 3066 onDropExternal(dragInfo.dropPos, (ItemInfo) dragInfo, (CellLayout) layout, false); 3067 return true; 3068 } 3069 mLauncher.showOutOfSpaceMessage(mLauncher.isHotseatLayout(layout)); 3070 return false; 3071 } 3072 3073 private void onDropExternal(int[] touchXY, Object dragInfo, 3074 CellLayout cellLayout, boolean insertAtFirst) { 3075 onDropExternal(touchXY, dragInfo, cellLayout, insertAtFirst, null); 3076 } 3077 3078 /** 3079 * Drop an item that didn't originate on one of the workspace screens. 3080 * It may have come from Launcher (e.g. from all apps or customize), or it may have 3081 * come from another app altogether. 3082 * 3083 * NOTE: This can also be called when we are outside of a drag event, when we want 3084 * to add an item to one of the workspace screens. 3085 */ 3086 private void onDropExternal(final int[] touchXY, final Object dragInfo, 3087 final CellLayout cellLayout, boolean insertAtFirst, DragObject d) { 3088 final Runnable exitSpringLoadedRunnable = new Runnable() { 3089 @Override 3090 public void run() { 3091 mLauncher.exitSpringLoadedDragModeDelayed(true, false, null); 3092 } 3093 }; 3094 3095 ItemInfo info = (ItemInfo) dragInfo; 3096 int spanX = info.spanX; 3097 int spanY = info.spanY; 3098 if (mDragInfo != null) { 3099 spanX = mDragInfo.spanX; 3100 spanY = mDragInfo.spanY; 3101 } 3102 3103 final long container = mLauncher.isHotseatLayout(cellLayout) ? 3104 LauncherSettings.Favorites.CONTAINER_HOTSEAT : 3105 LauncherSettings.Favorites.CONTAINER_DESKTOP; 3106 final long screenId = getIdForScreen(cellLayout); 3107 if (!mLauncher.isHotseatLayout(cellLayout) 3108 && screenId != getScreenIdForPageIndex(mCurrentPage) 3109 && mState != State.SPRING_LOADED) { 3110 snapToScreenId(screenId, null); 3111 } 3112 3113 if (info instanceof PendingAddItemInfo) { 3114 final PendingAddItemInfo pendingInfo = (PendingAddItemInfo) dragInfo; 3115 3116 boolean findNearestVacantCell = true; 3117 if (pendingInfo.itemType == LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT) { 3118 mTargetCell = findNearestArea((int) touchXY[0], (int) touchXY[1], spanX, spanY, 3119 cellLayout, mTargetCell); 3120 float distance = cellLayout.getDistanceFromCell(mDragViewVisualCenter[0], 3121 mDragViewVisualCenter[1], mTargetCell); 3122 if (willCreateUserFolder((ItemInfo) d.dragInfo, cellLayout, mTargetCell, 3123 distance, true) || willAddToExistingUserFolder((ItemInfo) d.dragInfo, 3124 cellLayout, mTargetCell, distance)) { 3125 findNearestVacantCell = false; 3126 } 3127 } 3128 3129 final ItemInfo item = (ItemInfo) d.dragInfo; 3130 boolean updateWidgetSize = false; 3131 if (findNearestVacantCell) { 3132 int minSpanX = item.spanX; 3133 int minSpanY = item.spanY; 3134 if (item.minSpanX > 0 && item.minSpanY > 0) { 3135 minSpanX = item.minSpanX; 3136 minSpanY = item.minSpanY; 3137 } 3138 int[] resultSpan = new int[2]; 3139 mTargetCell = cellLayout.createArea((int) mDragViewVisualCenter[0], 3140 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, info.spanX, info.spanY, 3141 null, mTargetCell, resultSpan, CellLayout.MODE_ON_DROP_EXTERNAL); 3142 3143 if (resultSpan[0] != item.spanX || resultSpan[1] != item.spanY) { 3144 updateWidgetSize = true; 3145 } 3146 item.spanX = resultSpan[0]; 3147 item.spanY = resultSpan[1]; 3148 } 3149 3150 Runnable onAnimationCompleteRunnable = new Runnable() { 3151 @Override 3152 public void run() { 3153 // When dragging and dropping from customization tray, we deal with creating 3154 // widgets/shortcuts/folders in a slightly different way 3155 switch (pendingInfo.itemType) { 3156 case LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET: 3157 int span[] = new int[2]; 3158 span[0] = item.spanX; 3159 span[1] = item.spanY; 3160 mLauncher.addAppWidgetFromDrop((PendingAddWidgetInfo) pendingInfo, 3161 container, screenId, mTargetCell, span, null); 3162 break; 3163 case LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT: 3164 mLauncher.processShortcutFromDrop(pendingInfo.componentName, 3165 container, screenId, mTargetCell, null); 3166 break; 3167 default: 3168 throw new IllegalStateException("Unknown item type: " + 3169 pendingInfo.itemType); 3170 } 3171 } 3172 }; 3173 View finalView = pendingInfo.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET 3174 ? ((PendingAddWidgetInfo) pendingInfo).boundWidget : null; 3175 3176 if (finalView instanceof AppWidgetHostView && updateWidgetSize) { 3177 AppWidgetHostView awhv = (AppWidgetHostView) finalView; 3178 AppWidgetResizeFrame.updateWidgetSizeRanges(awhv, mLauncher, item.spanX, 3179 item.spanY); 3180 } 3181 3182 int animationStyle = ANIMATE_INTO_POSITION_AND_DISAPPEAR; 3183 if (pendingInfo.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET && 3184 ((PendingAddWidgetInfo) pendingInfo).info.configure != null) { 3185 animationStyle = ANIMATE_INTO_POSITION_AND_REMAIN; 3186 } 3187 animateWidgetDrop(info, cellLayout, d.dragView, onAnimationCompleteRunnable, 3188 animationStyle, finalView, true); 3189 } else { 3190 // This is for other drag/drop cases, like dragging from All Apps 3191 View view = null; 3192 3193 switch (info.itemType) { 3194 case LauncherSettings.Favorites.ITEM_TYPE_APPLICATION: 3195 case LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT: 3196 if (info.container == NO_ID && info instanceof ApplicationInfo) { 3197 // Came from all apps -- make a copy 3198 info = new ShortcutInfo((ApplicationInfo) info); 3199 } 3200 view = mLauncher.createShortcut(R.layout.application, cellLayout, 3201 (ShortcutInfo) info); 3202 break; 3203 case LauncherSettings.Favorites.ITEM_TYPE_FOLDER: 3204 view = FolderIcon.fromXml(R.layout.folder_icon, mLauncher, cellLayout, 3205 (FolderInfo) info, mIconCache); 3206 break; 3207 default: 3208 throw new IllegalStateException("Unknown item type: " + info.itemType); 3209 } 3210 3211 // First we find the cell nearest to point at which the item is 3212 // dropped, without any consideration to whether there is an item there. 3213 if (touchXY != null) { 3214 mTargetCell = findNearestArea((int) touchXY[0], (int) touchXY[1], spanX, spanY, 3215 cellLayout, mTargetCell); 3216 float distance = cellLayout.getDistanceFromCell(mDragViewVisualCenter[0], 3217 mDragViewVisualCenter[1], mTargetCell); 3218 d.postAnimationRunnable = exitSpringLoadedRunnable; 3219 if (createUserFolderIfNecessary(view, container, cellLayout, mTargetCell, distance, 3220 true, d.dragView, d.postAnimationRunnable)) { 3221 return; 3222 } 3223 if (addToExistingFolderIfNecessary(view, cellLayout, mTargetCell, distance, d, 3224 true)) { 3225 return; 3226 } 3227 } 3228 3229 if (touchXY != null) { 3230 // when dragging and dropping, just find the closest free spot 3231 mTargetCell = cellLayout.createArea((int) mDragViewVisualCenter[0], 3232 (int) mDragViewVisualCenter[1], 1, 1, 1, 1, 3233 null, mTargetCell, null, CellLayout.MODE_ON_DROP_EXTERNAL); 3234 } else { 3235 cellLayout.findCellForSpan(mTargetCell, 1, 1); 3236 } 3237 addInScreen(view, container, screenId, mTargetCell[0], mTargetCell[1], info.spanX, 3238 info.spanY, insertAtFirst); 3239 cellLayout.onDropChild(view); 3240 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) view.getLayoutParams(); 3241 cellLayout.getShortcutsAndWidgets().measureChild(view); 3242 3243 LauncherModel.addOrMoveItemInDatabase(mLauncher, info, container, screenId, 3244 lp.cellX, lp.cellY); 3245 3246 if (d.dragView != null) { 3247 // We wrap the animation call in the temporary set and reset of the current 3248 // cellLayout to its final transform -- this means we animate the drag view to 3249 // the correct final location. 3250 setFinalTransitionTransform(cellLayout); 3251 mLauncher.getDragLayer().animateViewIntoPosition(d.dragView, view, 3252 exitSpringLoadedRunnable); 3253 resetTransitionTransform(cellLayout); 3254 } 3255 } 3256 } 3257 3258 public Bitmap createWidgetBitmap(ItemInfo widgetInfo, View layout) { 3259 int[] unScaledSize = mLauncher.getWorkspace().estimateItemSize(widgetInfo.spanX, 3260 widgetInfo.spanY, widgetInfo, false); 3261 int visibility = layout.getVisibility(); 3262 layout.setVisibility(VISIBLE); 3263 3264 int width = MeasureSpec.makeMeasureSpec(unScaledSize[0], MeasureSpec.EXACTLY); 3265 int height = MeasureSpec.makeMeasureSpec(unScaledSize[1], MeasureSpec.EXACTLY); 3266 Bitmap b = Bitmap.createBitmap(unScaledSize[0], unScaledSize[1], 3267 Bitmap.Config.ARGB_8888); 3268 Canvas c = new Canvas(b); 3269 3270 layout.measure(width, height); 3271 layout.layout(0, 0, unScaledSize[0], unScaledSize[1]); 3272 layout.draw(c); 3273 c.setBitmap(null); 3274 layout.setVisibility(visibility); 3275 return b; 3276 } 3277 3278 private void getFinalPositionForDropAnimation(int[] loc, float[] scaleXY, 3279 DragView dragView, CellLayout layout, ItemInfo info, int[] targetCell, 3280 boolean external, boolean scale) { 3281 // Now we animate the dragView, (ie. the widget or shortcut preview) into its final 3282 // location and size on the home screen. 3283 int spanX = info.spanX; 3284 int spanY = info.spanY; 3285 3286 Rect r = estimateItemPosition(layout, info, targetCell[0], targetCell[1], spanX, spanY); 3287 loc[0] = r.left; 3288 loc[1] = r.top; 3289 3290 setFinalTransitionTransform(layout); 3291 float cellLayoutScale = 3292 mLauncher.getDragLayer().getDescendantCoordRelativeToSelf(layout, loc, true); 3293 resetTransitionTransform(layout); 3294 3295 float dragViewScaleX; 3296 float dragViewScaleY; 3297 if (scale) { 3298 dragViewScaleX = (1.0f * r.width()) / dragView.getMeasuredWidth(); 3299 dragViewScaleY = (1.0f * r.height()) / dragView.getMeasuredHeight(); 3300 } else { 3301 dragViewScaleX = 1f; 3302 dragViewScaleY = 1f; 3303 } 3304 3305 // The animation will scale the dragView about its center, so we need to center about 3306 // the final location. 3307 loc[0] -= (dragView.getMeasuredWidth() - cellLayoutScale * r.width()) / 2; 3308 loc[1] -= (dragView.getMeasuredHeight() - cellLayoutScale * r.height()) / 2; 3309 3310 scaleXY[0] = dragViewScaleX * cellLayoutScale; 3311 scaleXY[1] = dragViewScaleY * cellLayoutScale; 3312 } 3313 3314 public void animateWidgetDrop(ItemInfo info, CellLayout cellLayout, DragView dragView, 3315 final Runnable onCompleteRunnable, int animationType, final View finalView, 3316 boolean external) { 3317 Rect from = new Rect(); 3318 mLauncher.getDragLayer().getViewRectRelativeToSelf(dragView, from); 3319 3320 int[] finalPos = new int[2]; 3321 float scaleXY[] = new float[2]; 3322 boolean scalePreview = !(info instanceof PendingAddShortcutInfo); 3323 getFinalPositionForDropAnimation(finalPos, scaleXY, dragView, cellLayout, info, mTargetCell, 3324 external, scalePreview); 3325 3326 Resources res = mLauncher.getResources(); 3327 int duration = res.getInteger(R.integer.config_dropAnimMaxDuration) - 200; 3328 3329 // In the case where we've prebound the widget, we remove it from the DragLayer 3330 if (finalView instanceof AppWidgetHostView && external) { 3331 Log.d(TAG, "6557954 Animate widget drop, final view is appWidgetHostView"); 3332 mLauncher.getDragLayer().removeView(finalView); 3333 } 3334 if ((animationType == ANIMATE_INTO_POSITION_AND_RESIZE || external) && finalView != null) { 3335 Bitmap crossFadeBitmap = createWidgetBitmap(info, finalView); 3336 dragView.setCrossFadeBitmap(crossFadeBitmap); 3337 dragView.crossFade((int) (duration * 0.8f)); 3338 } else if (info.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET && external) { 3339 scaleXY[0] = scaleXY[1] = Math.min(scaleXY[0], scaleXY[1]); 3340 } 3341 3342 DragLayer dragLayer = mLauncher.getDragLayer(); 3343 if (animationType == CANCEL_TWO_STAGE_WIDGET_DROP_ANIMATION) { 3344 mLauncher.getDragLayer().animateViewIntoPosition(dragView, finalPos, 0f, 0.1f, 0.1f, 3345 DragLayer.ANIMATION_END_DISAPPEAR, onCompleteRunnable, duration); 3346 } else { 3347 int endStyle; 3348 if (animationType == ANIMATE_INTO_POSITION_AND_REMAIN) { 3349 endStyle = DragLayer.ANIMATION_END_REMAIN_VISIBLE; 3350 } else { 3351 endStyle = DragLayer.ANIMATION_END_DISAPPEAR;; 3352 } 3353 3354 Runnable onComplete = new Runnable() { 3355 @Override 3356 public void run() { 3357 if (finalView != null) { 3358 finalView.setVisibility(VISIBLE); 3359 } 3360 if (onCompleteRunnable != null) { 3361 onCompleteRunnable.run(); 3362 } 3363 } 3364 }; 3365 dragLayer.animateViewIntoPosition(dragView, from.left, from.top, finalPos[0], 3366 finalPos[1], 1, 1, 1, scaleXY[0], scaleXY[1], onComplete, endStyle, 3367 duration, this); 3368 } 3369 } 3370 3371 public void setFinalTransitionTransform(CellLayout layout) { 3372 if (isSwitchingState()) { 3373 mCurrentScale = getScaleX(); 3374 setScaleX(mNewScale); 3375 setScaleY(mNewScale); 3376 } 3377 } 3378 public void resetTransitionTransform(CellLayout layout) { 3379 if (isSwitchingState()) { 3380 setScaleX(mCurrentScale); 3381 setScaleY(mCurrentScale); 3382 } 3383 } 3384 3385 /** 3386 * Return the current {@link CellLayout}, correctly picking the destination 3387 * screen while a scroll is in progress. 3388 */ 3389 public CellLayout getCurrentDropLayout() { 3390 return (CellLayout) getChildAt(getNextPage()); 3391 } 3392 3393 /** 3394 * Return the current CellInfo describing our current drag; this method exists 3395 * so that Launcher can sync this object with the correct info when the activity is created/ 3396 * destroyed 3397 * 3398 */ 3399 public CellLayout.CellInfo getDragInfo() { 3400 return mDragInfo; 3401 } 3402 3403 /** 3404 * Calculate the nearest cell where the given object would be dropped. 3405 * 3406 * pixelX and pixelY should be in the coordinate system of layout 3407 */ 3408 private int[] findNearestArea(int pixelX, int pixelY, 3409 int spanX, int spanY, CellLayout layout, int[] recycle) { 3410 return layout.findNearestArea( 3411 pixelX, pixelY, spanX, spanY, recycle); 3412 } 3413 3414 void setup(DragController dragController) { 3415 mSpringLoadedDragController = new SpringLoadedDragController(mLauncher); 3416 mDragController = dragController; 3417 3418 // hardware layers on children are enabled on startup, but should be disabled until 3419 // needed 3420 updateChildrenLayersEnabled(false); 3421 setWallpaperDimension(); 3422 } 3423 3424 /** 3425 * Called at the end of a drag which originated on the workspace. 3426 */ 3427 public void onDropCompleted(final View target, final DragObject d, 3428 final boolean isFlingToDelete, final boolean success) { 3429 if (mDeferDropAfterUninstall) { 3430 mDeferredAction = new Runnable() { 3431 public void run() { 3432 onDropCompleted(target, d, isFlingToDelete, success); 3433 mDeferredAction = null; 3434 } 3435 }; 3436 return; 3437 } 3438 3439 boolean beingCalledAfterUninstall = mDeferredAction != null; 3440 3441 if (success && !(beingCalledAfterUninstall && !mUninstallSuccessful)) { 3442 if (target != this && mDragInfo != null) { 3443 getParentCellLayoutForView(mDragInfo.cell).removeView(mDragInfo.cell); 3444 if (mDragInfo.cell instanceof DropTarget) { 3445 mDragController.removeDropTarget((DropTarget) mDragInfo.cell); 3446 } 3447 // If we move the item to anything not on the Workspace, check if any empty 3448 // screens need to be removed. If we dropped back on the workspace, this will 3449 // be done post drop animation. 3450 stripEmptyScreens(); 3451 } 3452 } else if (mDragInfo != null) { 3453 CellLayout cellLayout; 3454 if (mLauncher.isHotseatLayout(target)) { 3455 cellLayout = mLauncher.getHotseat().getLayout(); 3456 } else { 3457 cellLayout = getScreenWithId(mDragInfo.screenId); 3458 } 3459 cellLayout.onDropChild(mDragInfo.cell); 3460 } 3461 if ((d.cancelled || (beingCalledAfterUninstall && !mUninstallSuccessful)) 3462 && mDragInfo.cell != null) { 3463 mDragInfo.cell.setVisibility(VISIBLE); 3464 } 3465 mDragOutline = null; 3466 mDragInfo = null; 3467 } 3468 3469 public void deferCompleteDropAfterUninstallActivity() { 3470 mDeferDropAfterUninstall = true; 3471 } 3472 3473 /// maybe move this into a smaller part 3474 public void onUninstallActivityReturned(boolean success) { 3475 mDeferDropAfterUninstall = false; 3476 mUninstallSuccessful = success; 3477 if (mDeferredAction != null) { 3478 mDeferredAction.run(); 3479 } 3480 } 3481 3482 void updateItemLocationsInDatabase(CellLayout cl) { 3483 int count = cl.getShortcutsAndWidgets().getChildCount(); 3484 3485 long screenId = getIdForScreen(cl); 3486 int container = Favorites.CONTAINER_DESKTOP; 3487 3488 if (mLauncher.isHotseatLayout(cl)) { 3489 screenId = -1; 3490 container = Favorites.CONTAINER_HOTSEAT; 3491 } 3492 3493 for (int i = 0; i < count; i++) { 3494 View v = cl.getShortcutsAndWidgets().getChildAt(i); 3495 ItemInfo info = (ItemInfo) v.getTag(); 3496 // Null check required as the AllApps button doesn't have an item info 3497 if (info != null && info.requiresDbUpdate) { 3498 info.requiresDbUpdate = false; 3499 LauncherModel.modifyItemInDatabase(mLauncher, info, container, screenId, info.cellX, 3500 info.cellY, info.spanX, info.spanY); 3501 } 3502 } 3503 } 3504 3505 ArrayList<ComponentName> stripDuplicateApps() { 3506 ArrayList<ComponentName> uniqueIntents = new ArrayList<ComponentName>(); 3507 stripDuplicateApps((CellLayout) mLauncher.getHotseat().getLayout(), uniqueIntents); 3508 int count = getChildCount(); 3509 for (int i = 0; i < count; i++) { 3510 CellLayout cl = (CellLayout) getChildAt(i); 3511 stripDuplicateApps(cl, uniqueIntents); 3512 } 3513 return uniqueIntents; 3514 } 3515 3516 void stripDuplicateApps(CellLayout cl, ArrayList<ComponentName> uniqueIntents) { 3517 int count = cl.getShortcutsAndWidgets().getChildCount(); 3518 3519 ArrayList<View> children = new ArrayList<View>(); 3520 for (int i = 0; i < count; i++) { 3521 View v = cl.getShortcutsAndWidgets().getChildAt(i); 3522 children.add(v); 3523 } 3524 3525 for (int i = 0; i < count; i++) { 3526 View v = children.get(i); 3527 ItemInfo info = (ItemInfo) v.getTag(); 3528 // Null check required as the AllApps button doesn't have an item info 3529 if (info instanceof ShortcutInfo) { 3530 ShortcutInfo si = (ShortcutInfo) info; 3531 ComponentName cn = si.intent.getComponent(); 3532 3533 if (si.itemType == LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT) { 3534 continue; 3535 } 3536 3537 if (!uniqueIntents.contains(cn)) { 3538 uniqueIntents.add(cn); 3539 } else { 3540 cl.removeViewInLayout(v); 3541 LauncherModel.deleteItemFromDatabase(mLauncher, si); 3542 } 3543 } 3544 if (v instanceof FolderIcon) { 3545 FolderIcon fi = (FolderIcon) v; 3546 ArrayList<View> items = fi.getFolder().getItemsInReadingOrder(); 3547 for (int j = 0; j < items.size(); j++) { 3548 if (items.get(j).getTag() instanceof ShortcutInfo) { 3549 ShortcutInfo si = (ShortcutInfo) items.get(j).getTag(); 3550 ComponentName cn = si.intent.getComponent(); 3551 3552 if (si.itemType == LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT) { 3553 continue; 3554 } 3555 if (!uniqueIntents.contains(cn)) { 3556 uniqueIntents.add(cn); 3557 } else { 3558 fi.getFolderInfo().remove(si); 3559 LauncherModel.deleteItemFromDatabase(mLauncher, si); 3560 } 3561 } 3562 } 3563 } 3564 } 3565 } 3566 3567 void saveWorkspaceToDb() { 3568 saveWorkspaceScreenToDb((CellLayout) mLauncher.getHotseat().getLayout()); 3569 int count = getChildCount(); 3570 for (int i = 0; i < count; i++) { 3571 CellLayout cl = (CellLayout) getChildAt(i); 3572 saveWorkspaceScreenToDb(cl); 3573 } 3574 } 3575 3576 void saveWorkspaceScreenToDb(CellLayout cl) { 3577 int count = cl.getShortcutsAndWidgets().getChildCount(); 3578 3579 long screenId = getIdForScreen(cl); 3580 int container = Favorites.CONTAINER_DESKTOP; 3581 3582 Hotseat hotseat = mLauncher.getHotseat(); 3583 if (mLauncher.isHotseatLayout(cl)) { 3584 screenId = -1; 3585 container = Favorites.CONTAINER_HOTSEAT; 3586 } 3587 3588 for (int i = 0; i < count; i++) { 3589 View v = cl.getShortcutsAndWidgets().getChildAt(i); 3590 ItemInfo info = (ItemInfo) v.getTag(); 3591 // Null check required as the AllApps button doesn't have an item info 3592 if (info != null) { 3593 int cellX = info.cellX; 3594 int cellY = info.cellY; 3595 if (container == Favorites.CONTAINER_HOTSEAT) { 3596 cellX = hotseat.getCellXFromOrder((int) info.screenId); 3597 cellY = hotseat.getCellYFromOrder((int) info.screenId); 3598 } 3599 LauncherModel.addItemToDatabase(mLauncher, info, container, screenId, cellX, 3600 cellY, false); 3601 } 3602 if (v instanceof FolderIcon) { 3603 FolderIcon fi = (FolderIcon) v; 3604 fi.getFolder().addItemLocationsInDatabase(); 3605 } 3606 } 3607 } 3608 3609 @Override 3610 public boolean supportsFlingToDelete() { 3611 return true; 3612 } 3613 3614 @Override 3615 public void onFlingToDelete(DragObject d, int x, int y, PointF vec) { 3616 // Do nothing 3617 } 3618 3619 @Override 3620 public void onFlingToDeleteCompleted() { 3621 // Do nothing 3622 } 3623 3624 public boolean isDropEnabled() { 3625 return true; 3626 } 3627 3628 @Override 3629 protected void onRestoreInstanceState(Parcelable state) { 3630 super.onRestoreInstanceState(state); 3631 Launcher.setScreen(mCurrentPage); 3632 } 3633 3634 @Override 3635 protected void dispatchRestoreInstanceState(SparseArray<Parcelable> container) { 3636 // We don't dispatch restoreInstanceState to our children using this code path. 3637 // Some pages will be restored immediately as their items are bound immediately, and 3638 // others we will need to wait until after their items are bound. 3639 mSavedStates = container; 3640 } 3641 3642 public void restoreInstanceStateForChild(int child) { 3643 if (mSavedStates != null) { 3644 mRestoredPages.add(child); 3645 CellLayout cl = (CellLayout) getChildAt(child); 3646 cl.restoreInstanceState(mSavedStates); 3647 } 3648 } 3649 3650 public void restoreInstanceStateForRemainingPages() { 3651 int count = getChildCount(); 3652 for (int i = 0; i < count; i++) { 3653 if (!mRestoredPages.contains(i)) { 3654 restoreInstanceStateForChild(i); 3655 } 3656 } 3657 mRestoredPages.clear(); 3658 } 3659 3660 @Override 3661 public void scrollLeft() { 3662 if (!isSmall() && !mIsSwitchingState) { 3663 super.scrollLeft(); 3664 } 3665 Folder openFolder = getOpenFolder(); 3666 if (openFolder != null) { 3667 openFolder.completeDragExit(); 3668 } 3669 } 3670 3671 @Override 3672 public void scrollRight() { 3673 if (!isSmall() && !mIsSwitchingState) { 3674 super.scrollRight(); 3675 } 3676 Folder openFolder = getOpenFolder(); 3677 if (openFolder != null) { 3678 openFolder.completeDragExit(); 3679 } 3680 } 3681 3682 @Override 3683 public boolean onEnterScrollArea(int x, int y, int direction) { 3684 // Ignore the scroll area if we are dragging over the hot seat 3685 boolean isPortrait = !LauncherAppState.isScreenLandscape(getContext()); 3686 if (mLauncher.getHotseat() != null && isPortrait) { 3687 Rect r = new Rect(); 3688 mLauncher.getHotseat().getHitRect(r); 3689 if (r.contains(x, y)) { 3690 return false; 3691 } 3692 } 3693 3694 boolean result = false; 3695 if (!isSmall() && !mIsSwitchingState) { 3696 mInScrollArea = true; 3697 3698 final int page = getNextPage() + 3699 (direction == DragController.SCROLL_LEFT ? -1 : 1); 3700 3701 // We always want to exit the current layout to ensure parity of enter / exit 3702 setCurrentDropLayout(null); 3703 3704 if (0 <= page && page < getChildCount()) { 3705 CellLayout layout = (CellLayout) getChildAt(page); 3706 setCurrentDragOverlappingLayout(layout); 3707 3708 // Workspace is responsible for drawing the edge glow on adjacent pages, 3709 // so we need to redraw the workspace when this may have changed. 3710 invalidate(); 3711 result = true; 3712 } 3713 } 3714 return result; 3715 } 3716 3717 @Override 3718 public boolean onExitScrollArea() { 3719 boolean result = false; 3720 if (mInScrollArea) { 3721 invalidate(); 3722 CellLayout layout = getCurrentDropLayout(); 3723 setCurrentDropLayout(layout); 3724 setCurrentDragOverlappingLayout(layout); 3725 3726 result = true; 3727 mInScrollArea = false; 3728 } 3729 return result; 3730 } 3731 3732 private void onResetScrollArea() { 3733 setCurrentDragOverlappingLayout(null); 3734 mInScrollArea = false; 3735 } 3736 3737 /** 3738 * Returns a specific CellLayout 3739 */ 3740 CellLayout getParentCellLayoutForView(View v) { 3741 ArrayList<CellLayout> layouts = getWorkspaceAndHotseatCellLayouts(); 3742 for (CellLayout layout : layouts) { 3743 if (layout.getShortcutsAndWidgets().indexOfChild(v) > -1) { 3744 return layout; 3745 } 3746 } 3747 return null; 3748 } 3749 3750 /** 3751 * Returns a list of all the CellLayouts in the workspace. 3752 */ 3753 ArrayList<CellLayout> getWorkspaceAndHotseatCellLayouts() { 3754 ArrayList<CellLayout> layouts = new ArrayList<CellLayout>(); 3755 int screenCount = getChildCount(); 3756 for (int screen = 0; screen < screenCount; screen++) { 3757 layouts.add(((CellLayout) getChildAt(screen))); 3758 } 3759 if (mLauncher.getHotseat() != null) { 3760 layouts.add(mLauncher.getHotseat().getLayout()); 3761 } 3762 return layouts; 3763 } 3764 3765 /** 3766 * We should only use this to search for specific children. Do not use this method to modify 3767 * ShortcutsAndWidgetsContainer directly. Includes ShortcutAndWidgetContainers from 3768 * the hotseat and workspace pages 3769 */ 3770 ArrayList<ShortcutAndWidgetContainer> getAllShortcutAndWidgetContainers() { 3771 ArrayList<ShortcutAndWidgetContainer> childrenLayouts = 3772 new ArrayList<ShortcutAndWidgetContainer>(); 3773 int screenCount = getChildCount(); 3774 for (int screen = 0; screen < screenCount; screen++) { 3775 childrenLayouts.add(((CellLayout) getChildAt(screen)).getShortcutsAndWidgets()); 3776 } 3777 if (mLauncher.getHotseat() != null) { 3778 childrenLayouts.add(mLauncher.getHotseat().getLayout().getShortcutsAndWidgets()); 3779 } 3780 return childrenLayouts; 3781 } 3782 3783 public Folder getFolderForTag(Object tag) { 3784 ArrayList<ShortcutAndWidgetContainer> childrenLayouts = 3785 getAllShortcutAndWidgetContainers(); 3786 for (ShortcutAndWidgetContainer layout: childrenLayouts) { 3787 int count = layout.getChildCount(); 3788 for (int i = 0; i < count; i++) { 3789 View child = layout.getChildAt(i); 3790 if (child instanceof Folder) { 3791 Folder f = (Folder) child; 3792 if (f.getInfo() == tag && f.getInfo().opened) { 3793 return f; 3794 } 3795 } 3796 } 3797 } 3798 return null; 3799 } 3800 3801 public View getViewForTag(Object tag) { 3802 ArrayList<ShortcutAndWidgetContainer> childrenLayouts = 3803 getAllShortcutAndWidgetContainers(); 3804 for (ShortcutAndWidgetContainer layout: childrenLayouts) { 3805 int count = layout.getChildCount(); 3806 for (int i = 0; i < count; i++) { 3807 View child = layout.getChildAt(i); 3808 if (child.getTag() == tag) { 3809 return child; 3810 } 3811 } 3812 } 3813 return null; 3814 } 3815 3816 void clearDropTargets() { 3817 ArrayList<ShortcutAndWidgetContainer> childrenLayouts = 3818 getAllShortcutAndWidgetContainers(); 3819 for (ShortcutAndWidgetContainer layout: childrenLayouts) { 3820 int childCount = layout.getChildCount(); 3821 for (int j = 0; j < childCount; j++) { 3822 View v = layout.getChildAt(j); 3823 if (v instanceof DropTarget) { 3824 mDragController.removeDropTarget((DropTarget) v); 3825 } 3826 } 3827 } 3828 } 3829 3830 // Removes ALL items that match a given package name, this is usually called when a package 3831 // has been removed and we want to remove all components (widgets, shortcuts, apps) that 3832 // belong to that package. 3833 void removeItemsByPackageName(final ArrayList<String> packages) { 3834 final HashSet<String> packageNames = new HashSet<String>(); 3835 packageNames.addAll(packages); 3836 3837 // Filter out all the ItemInfos that this is going to affect 3838 final HashSet<ItemInfo> infos = new HashSet<ItemInfo>(); 3839 final HashSet<ComponentName> cns = new HashSet<ComponentName>(); 3840 ArrayList<CellLayout> cellLayouts = getWorkspaceAndHotseatCellLayouts(); 3841 for (CellLayout layoutParent : cellLayouts) { 3842 ViewGroup layout = layoutParent.getShortcutsAndWidgets(); 3843 int childCount = layout.getChildCount(); 3844 for (int i = 0; i < childCount; ++i) { 3845 View view = layout.getChildAt(i); 3846 infos.add((ItemInfo) view.getTag()); 3847 } 3848 } 3849 LauncherModel.ItemInfoFilter filter = new LauncherModel.ItemInfoFilter() { 3850 @Override 3851 public boolean filterItem(ItemInfo parent, ItemInfo info, 3852 ComponentName cn) { 3853 if (packageNames.contains(cn.getPackageName())) { 3854 cns.add(cn); 3855 return true; 3856 } 3857 return false; 3858 } 3859 }; 3860 LauncherModel.filterItemInfos(infos, filter); 3861 3862 // Remove the affected components 3863 removeItemsByComponentName(cns); 3864 } 3865 3866 // Removes items that match the application info specified, when applications are removed 3867 // as a part of an update, this is called to ensure that other widgets and application 3868 // shortcuts are not removed. 3869 void removeItemsByApplicationInfo(final ArrayList<ApplicationInfo> appInfos) { 3870 // Just create a hash table of all the specific components that this will affect 3871 HashSet<ComponentName> cns = new HashSet<ComponentName>(); 3872 for (ApplicationInfo info : appInfos) { 3873 cns.add(info.componentName); 3874 } 3875 3876 // Remove all the things 3877 removeItemsByComponentName(cns); 3878 } 3879 3880 void removeItemsByComponentName(final HashSet<ComponentName> componentNames) { 3881 ArrayList<CellLayout> cellLayouts = getWorkspaceAndHotseatCellLayouts(); 3882 for (final CellLayout layoutParent: cellLayouts) { 3883 final ViewGroup layout = layoutParent.getShortcutsAndWidgets(); 3884 3885 final HashMap<ItemInfo, View> children = new HashMap<ItemInfo, View>(); 3886 for (int j = 0; j < layout.getChildCount(); j++) { 3887 final View view = layout.getChildAt(j); 3888 children.put((ItemInfo) view.getTag(), view); 3889 } 3890 3891 final ArrayList<View> childrenToRemove = new ArrayList<View>(); 3892 final HashMap<FolderInfo, ArrayList<ShortcutInfo>> folderAppsToRemove = 3893 new HashMap<FolderInfo, ArrayList<ShortcutInfo>>(); 3894 LauncherModel.ItemInfoFilter filter = new LauncherModel.ItemInfoFilter() { 3895 @Override 3896 public boolean filterItem(ItemInfo parent, ItemInfo info, 3897 ComponentName cn) { 3898 if (parent instanceof FolderInfo) { 3899 if (componentNames.contains(cn)) { 3900 FolderInfo folder = (FolderInfo) parent; 3901 ArrayList<ShortcutInfo> appsToRemove; 3902 if (folderAppsToRemove.containsKey(folder)) { 3903 appsToRemove = folderAppsToRemove.get(folder); 3904 } else { 3905 appsToRemove = new ArrayList<ShortcutInfo>(); 3906 folderAppsToRemove.put(folder, appsToRemove); 3907 } 3908 appsToRemove.add((ShortcutInfo) info); 3909 return true; 3910 } 3911 } else { 3912 if (componentNames.contains(cn)) { 3913 childrenToRemove.add(children.get(info)); 3914 return true; 3915 } 3916 } 3917 return false; 3918 } 3919 }; 3920 LauncherModel.filterItemInfos(children.keySet(), filter); 3921 3922 // Remove all the apps from their folders 3923 for (FolderInfo folder : folderAppsToRemove.keySet()) { 3924 ArrayList<ShortcutInfo> appsToRemove = folderAppsToRemove.get(folder); 3925 for (ShortcutInfo info : appsToRemove) { 3926 folder.remove(info); 3927 } 3928 } 3929 3930 // Remove all the other children 3931 for (View child : childrenToRemove) { 3932 // Note: We can not remove the view directly from CellLayoutChildren as this 3933 // does not re-mark the spaces as unoccupied. 3934 layoutParent.removeViewInLayout(child); 3935 if (child instanceof DropTarget) { 3936 mDragController.removeDropTarget((DropTarget) child); 3937 } 3938 } 3939 3940 if (childrenToRemove.size() > 0) { 3941 layout.requestLayout(); 3942 layout.invalidate(); 3943 } 3944 } 3945 3946 // Strip all the empty screens 3947 stripEmptyScreens(); 3948 } 3949 3950 void updateShortcuts(ArrayList<ApplicationInfo> apps) { 3951 ArrayList<ShortcutAndWidgetContainer> childrenLayouts = getAllShortcutAndWidgetContainers(); 3952 for (ShortcutAndWidgetContainer layout: childrenLayouts) { 3953 int childCount = layout.getChildCount(); 3954 for (int j = 0; j < childCount; j++) { 3955 final View view = layout.getChildAt(j); 3956 Object tag = view.getTag(); 3957 3958 if (LauncherModel.isShortcutInfoUpdateable((ItemInfo) tag)) { 3959 ShortcutInfo info = (ShortcutInfo) tag; 3960 3961 final Intent intent = info.intent; 3962 final ComponentName name = intent.getComponent(); 3963 final int appCount = apps.size(); 3964 for (int k = 0; k < appCount; k++) { 3965 ApplicationInfo app = apps.get(k); 3966 if (app.componentName.equals(name)) { 3967 BubbleTextView shortcut = (BubbleTextView) view; 3968 info.updateIcon(mIconCache); 3969 info.title = app.title.toString(); 3970 shortcut.applyFromShortcutInfo(info, mIconCache); 3971 } 3972 } 3973 } 3974 } 3975 } 3976 } 3977 3978 void moveToDefaultScreen(boolean animate) { 3979 if (!isSmall()) { 3980 if (animate) { 3981 snapToPage(mDefaultPage); 3982 } else { 3983 setCurrentPage(mDefaultPage); 3984 } 3985 } 3986 View child = getChildAt(mDefaultPage); 3987 if (child != null) { 3988 child.requestFocus(); 3989 } 3990 } 3991 3992 @Override 3993 public void syncPages() { 3994 } 3995 3996 @Override 3997 public void syncPageItems(int page, boolean immediate) { 3998 } 3999 4000 protected String getCurrentPageDescription() { 4001 int page = (mNextPage != INVALID_PAGE) ? mNextPage : mCurrentPage; 4002 return String.format(getContext().getString(R.string.workspace_scroll_format), 4003 page + 1, getChildCount()); 4004 } 4005 4006 public void getLocationInDragLayer(int[] loc) { 4007 mLauncher.getDragLayer().getLocationInDragLayer(this, loc); 4008 } 4009 4010 void setFadeForOverScroll(float fade) { 4011 mOverscrollFade = fade; 4012 float reducedFade = 0.5f + 0.5f * (1 - fade); 4013 final ViewGroup parent = (ViewGroup) getParent(); 4014 final ImageView qsbDivider = (ImageView) (parent.findViewById(R.id.qsb_divider)); 4015 4016 if (qsbDivider != null) qsbDivider.setAlpha(reducedFade); 4017 } 4018} 4019