Workspace.java revision 87752940206f1b576e6e814d3970ba274a84ffde
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.Animator.AnimatorListener; 21import android.animation.AnimatorListenerAdapter; 22import android.animation.AnimatorSet; 23import android.animation.LayoutTransition; 24import android.animation.ObjectAnimator; 25import android.animation.PropertyValuesHolder; 26import android.animation.TimeInterpolator; 27import android.animation.ValueAnimator; 28import android.animation.ValueAnimator.AnimatorUpdateListener; 29import android.app.WallpaperManager; 30import android.appwidget.AppWidgetHostView; 31import android.appwidget.AppWidgetProviderInfo; 32import android.content.ComponentName; 33import android.content.Context; 34import android.content.Intent; 35import android.content.SharedPreferences; 36import android.content.res.Resources; 37import android.content.res.TypedArray; 38import android.graphics.Bitmap; 39import android.graphics.Canvas; 40import android.graphics.Matrix; 41import android.graphics.Point; 42import android.graphics.PointF; 43import android.graphics.Rect; 44import android.graphics.Region.Op; 45import android.graphics.drawable.Drawable; 46import android.net.Uri; 47import android.os.IBinder; 48import android.os.Parcelable; 49import android.support.v4.view.ViewCompat; 50import android.util.AttributeSet; 51import android.util.Log; 52import android.util.SparseArray; 53import android.view.Choreographer; 54import android.view.Display; 55import android.view.MotionEvent; 56import android.view.View; 57import android.view.ViewGroup; 58import android.view.View.OnClickListener; 59import android.view.accessibility.AccessibilityEvent; 60import android.view.accessibility.AccessibilityManager; 61import android.view.accessibility.AccessibilityNodeInfo; 62import android.view.animation.DecelerateInterpolator; 63import android.view.animation.Interpolator; 64import android.widget.TextView; 65 66import com.android.launcher3.FolderIcon.FolderRingAnimator; 67import com.android.launcher3.Launcher.CustomContentCallbacks; 68import com.android.launcher3.LauncherSettings.Favorites; 69 70import java.util.ArrayList; 71import java.util.HashMap; 72import java.util.HashSet; 73import java.util.Iterator; 74 75/** 76 * The workspace is a wide area with a wallpaper and a finite number of pages. 77 * Each page contains a number of icons, folders or widgets the user can 78 * interact with. A workspace is meant to be used with a fixed width only. 79 */ 80public class Workspace extends SmoothPagedView 81 implements DropTarget, DragSource, DragScroller, View.OnTouchListener, 82 DragController.DragListener, LauncherTransitionable, ViewGroup.OnHierarchyChangeListener, 83 Insettable { 84 private static final String TAG = "Launcher.Workspace"; 85 86 // Y rotation to apply to the workspace screens 87 private static final float WORKSPACE_OVERSCROLL_ROTATION = 24f; 88 89 private static final int CHILDREN_OUTLINE_FADE_OUT_DELAY = 0; 90 private static final int CHILDREN_OUTLINE_FADE_OUT_DURATION = 375; 91 private static final int CHILDREN_OUTLINE_FADE_IN_DURATION = 100; 92 93 protected static final int SNAP_OFF_EMPTY_SCREEN_DURATION = 400; 94 protected static final int FADE_EMPTY_SCREEN_DURATION = 150; 95 96 private static final int BACKGROUND_FADE_OUT_DURATION = 350; 97 private static final int ADJACENT_SCREEN_DROP_DURATION = 300; 98 private static final int FLING_THRESHOLD_VELOCITY = 500; 99 100 private static final float ALPHA_CUTOFF_THRESHOLD = 0.01f; 101 102 // These animators are used to fade the children's outlines 103 private ObjectAnimator mChildrenOutlineFadeInAnimation; 104 private ObjectAnimator mChildrenOutlineFadeOutAnimation; 105 private float mChildrenOutlineAlpha = 0; 106 107 // These properties refer to the background protection gradient used for AllApps and Customize 108 private ValueAnimator mBackgroundFadeInAnimation; 109 private ValueAnimator mBackgroundFadeOutAnimation; 110 private Drawable mBackground; 111 boolean mDrawBackground = true; 112 private float mBackgroundAlpha = 0; 113 114 private static final long CUSTOM_CONTENT_GESTURE_DELAY = 200; 115 private long mTouchDownTime = -1; 116 private long mCustomContentShowTime = -1; 117 118 private LayoutTransition mLayoutTransition; 119 private final WallpaperManager mWallpaperManager; 120 private IBinder mWindowToken; 121 122 private int mOriginalDefaultPage; 123 private int mDefaultPage; 124 125 private ShortcutAndWidgetContainer mDragSourceInternal; 126 private static boolean sAccessibilityEnabled; 127 128 // The screen id used for the empty screen always present to the right. 129 private final static long EXTRA_EMPTY_SCREEN_ID = -201; 130 private final static long CUSTOM_CONTENT_SCREEN_ID = -301; 131 132 private HashMap<Long, CellLayout> mWorkspaceScreens = new HashMap<Long, CellLayout>(); 133 private ArrayList<Long> mScreenOrder = new ArrayList<Long>(); 134 135 private Runnable mRemoveEmptyScreenRunnable; 136 137 /** 138 * CellInfo for the cell that is currently being dragged 139 */ 140 private CellLayout.CellInfo mDragInfo; 141 142 /** 143 * Target drop area calculated during last acceptDrop call. 144 */ 145 private int[] mTargetCell = new int[2]; 146 private int mDragOverX = -1; 147 private int mDragOverY = -1; 148 149 static Rect mLandscapeCellLayoutMetrics = null; 150 static Rect mPortraitCellLayoutMetrics = null; 151 152 CustomContentCallbacks mCustomContentCallbacks; 153 boolean mCustomContentShowing; 154 private float mLastCustomContentScrollProgress = -1f; 155 private String mCustomContentDescription = ""; 156 157 /** 158 * The CellLayout that is currently being dragged over 159 */ 160 private CellLayout mDragTargetLayout = null; 161 /** 162 * The CellLayout that we will show as glowing 163 */ 164 private CellLayout mDragOverlappingLayout = null; 165 166 /** 167 * The CellLayout which will be dropped to 168 */ 169 private CellLayout mDropToLayout = null; 170 171 private Launcher mLauncher; 172 private IconCache mIconCache; 173 private DragController mDragController; 174 175 // These are temporary variables to prevent having to allocate a new object just to 176 // return an (x, y) value from helper functions. Do NOT use them to maintain other state. 177 private int[] mTempCell = new int[2]; 178 private int[] mTempPt = new int[2]; 179 private int[] mTempEstimate = new int[2]; 180 private float[] mDragViewVisualCenter = new float[2]; 181 private float[] mTempCellLayoutCenterCoordinates = new float[2]; 182 private Matrix mTempInverseMatrix = new Matrix(); 183 184 private SpringLoadedDragController mSpringLoadedDragController; 185 private float mSpringLoadedShrinkFactor; 186 private float mOverviewModeShrinkFactor; 187 private int mOverviewModePageOffset; 188 189 // State variable that indicates whether the pages are small (ie when you're 190 // in all apps or customize mode) 191 192 enum State { NORMAL, SPRING_LOADED, SMALL, OVERVIEW}; 193 private State mState = State.NORMAL; 194 private boolean mIsSwitchingState = false; 195 196 boolean mAnimatingViewIntoPlace = false; 197 boolean mIsDragOccuring = false; 198 boolean mChildrenLayersEnabled = true; 199 200 private boolean mStripScreensOnPageStopMoving = false; 201 202 /** Is the user is dragging an item near the edge of a page? */ 203 private boolean mInScrollArea = false; 204 205 private HolographicOutlineHelper mOutlineHelper; 206 private Bitmap mDragOutline = null; 207 private final Rect mTempRect = new Rect(); 208 private final int[] mTempXY = new int[2]; 209 private int[] mTempVisiblePagesRange = new int[2]; 210 private boolean mOverscrollTransformsSet; 211 private float mLastOverscrollPivotX; 212 public static final int DRAG_BITMAP_PADDING = 2; 213 private boolean mWorkspaceFadeInAdjacentScreens; 214 215 WallpaperOffsetInterpolator mWallpaperOffset; 216 private Runnable mDelayedResizeRunnable; 217 private Runnable mDelayedSnapToPageRunnable; 218 private Point mDisplaySize = new Point(); 219 private int mCameraDistance; 220 221 // Variables relating to the creation of user folders by hovering shortcuts over shortcuts 222 private static final int FOLDER_CREATION_TIMEOUT = 0; 223 private static final int REORDER_TIMEOUT = 250; 224 private final Alarm mFolderCreationAlarm = new Alarm(); 225 private final Alarm mReorderAlarm = new Alarm(); 226 private FolderRingAnimator mDragFolderRingAnimator = null; 227 private FolderIcon mDragOverFolderIcon = null; 228 private boolean mCreateUserFolderOnDrop = false; 229 private boolean mAddToExistingFolderOnDrop = false; 230 private DropTarget.DragEnforcer mDragEnforcer; 231 private float mMaxDistanceForFolderCreation; 232 233 // Variables relating to touch disambiguation (scrolling workspace vs. scrolling a widget) 234 private float mXDown; 235 private float mYDown; 236 final static float START_DAMPING_TOUCH_SLOP_ANGLE = (float) Math.PI / 6; 237 final static float MAX_SWIPE_ANGLE = (float) Math.PI / 3; 238 final static float TOUCH_SLOP_DAMPING_FACTOR = 4; 239 240 // Relating to the animation of items being dropped externally 241 public static final int ANIMATE_INTO_POSITION_AND_DISAPPEAR = 0; 242 public static final int ANIMATE_INTO_POSITION_AND_REMAIN = 1; 243 public static final int ANIMATE_INTO_POSITION_AND_RESIZE = 2; 244 public static final int COMPLETE_TWO_STAGE_WIDGET_DROP_ANIMATION = 3; 245 public static final int CANCEL_TWO_STAGE_WIDGET_DROP_ANIMATION = 4; 246 247 // Related to dragging, folder creation and reordering 248 private static final int DRAG_MODE_NONE = 0; 249 private static final int DRAG_MODE_CREATE_FOLDER = 1; 250 private static final int DRAG_MODE_ADD_TO_FOLDER = 2; 251 private static final int DRAG_MODE_REORDER = 3; 252 private int mDragMode = DRAG_MODE_NONE; 253 private int mLastReorderX = -1; 254 private int mLastReorderY = -1; 255 256 private SparseArray<Parcelable> mSavedStates; 257 private final ArrayList<Integer> mRestoredPages = new ArrayList<Integer>(); 258 259 // These variables are used for storing the initial and final values during workspace animations 260 private int mSavedScrollX; 261 private float mSavedRotationY; 262 private float mSavedTranslationX; 263 264 private float mCurrentScale; 265 private float mNewScale; 266 private float[] mOldBackgroundAlphas; 267 private float[] mOldAlphas; 268 private float[] mNewBackgroundAlphas; 269 private float[] mNewAlphas; 270 private int mLastChildCount = -1; 271 private float mTransitionProgress; 272 273 private Runnable mDeferredAction; 274 private boolean mDeferDropAfterUninstall; 275 private boolean mUninstallSuccessful; 276 277 private final Runnable mBindPages = new Runnable() { 278 @Override 279 public void run() { 280 mLauncher.getModel().bindRemainingSynchronousPages(); 281 } 282 }; 283 284 /** 285 * Used to inflate the Workspace from XML. 286 * 287 * @param context The application's context. 288 * @param attrs The attributes set containing the Workspace's customization values. 289 */ 290 public Workspace(Context context, AttributeSet attrs) { 291 this(context, attrs, 0); 292 } 293 294 /** 295 * Used to inflate the Workspace from XML. 296 * 297 * @param context The application's context. 298 * @param attrs The attributes set containing the Workspace's customization values. 299 * @param defStyle Unused. 300 */ 301 public Workspace(Context context, AttributeSet attrs, int defStyle) { 302 super(context, attrs, defStyle); 303 mContentIsRefreshable = false; 304 305 mOutlineHelper = HolographicOutlineHelper.obtain(context); 306 307 mDragEnforcer = new DropTarget.DragEnforcer(context); 308 // With workspace, data is available straight from the get-go 309 setDataIsReady(); 310 311 mLauncher = (Launcher) context; 312 final Resources res = getResources(); 313 mWorkspaceFadeInAdjacentScreens = LauncherAppState.getInstance().getDynamicGrid(). 314 getDeviceProfile().shouldFadeAdjacentWorkspaceScreens(); 315 mFadeInAdjacentScreens = false; 316 mWallpaperManager = WallpaperManager.getInstance(context); 317 318 TypedArray a = context.obtainStyledAttributes(attrs, 319 R.styleable.Workspace, defStyle, 0); 320 mSpringLoadedShrinkFactor = 321 res.getInteger(R.integer.config_workspaceSpringLoadShrinkPercentage) / 100.0f; 322 mOverviewModeShrinkFactor = 323 res.getInteger(R.integer.config_workspaceOverviewShrinkPercentage) / 100.0f; 324 mOverviewModePageOffset = res.getDimensionPixelSize(R.dimen.overview_mode_page_offset); 325 mCameraDistance = res.getInteger(R.integer.config_cameraDistance); 326 mOriginalDefaultPage = mDefaultPage = a.getInt(R.styleable.Workspace_defaultScreen, 1); 327 a.recycle(); 328 329 setOnHierarchyChangeListener(this); 330 setHapticFeedbackEnabled(false); 331 332 initWorkspace(); 333 334 // Disable multitouch across the workspace/all apps/customize tray 335 setMotionEventSplittingEnabled(true); 336 setImportantForAccessibility(View.IMPORTANT_FOR_ACCESSIBILITY_YES); 337 } 338 339 @Override 340 public void setInsets(Rect insets) { 341 mInsets.set(insets); 342 } 343 344 // estimate the size of a widget with spans hSpan, vSpan. return MAX_VALUE for each 345 // dimension if unsuccessful 346 public int[] estimateItemSize(int hSpan, int vSpan, 347 ItemInfo itemInfo, boolean springLoaded) { 348 int[] size = new int[2]; 349 if (getChildCount() > 0) { 350 // Use the first non-custom page to estimate the child position 351 CellLayout cl = (CellLayout) getChildAt(numCustomPages()); 352 Rect r = estimateItemPosition(cl, itemInfo, 0, 0, hSpan, vSpan); 353 size[0] = r.width(); 354 size[1] = r.height(); 355 if (springLoaded) { 356 size[0] *= mSpringLoadedShrinkFactor; 357 size[1] *= mSpringLoadedShrinkFactor; 358 } 359 return size; 360 } else { 361 size[0] = Integer.MAX_VALUE; 362 size[1] = Integer.MAX_VALUE; 363 return size; 364 } 365 } 366 367 public Rect estimateItemPosition(CellLayout cl, ItemInfo pendingInfo, 368 int hCell, int vCell, int hSpan, int vSpan) { 369 Rect r = new Rect(); 370 cl.cellToRect(hCell, vCell, hSpan, vSpan, r); 371 return r; 372 } 373 374 public void onDragStart(final DragSource source, Object info, int dragAction) { 375 mIsDragOccuring = true; 376 updateChildrenLayersEnabled(false); 377 mLauncher.lockScreenOrientation(); 378 mLauncher.onInteractionBegin(); 379 setChildrenBackgroundAlphaMultipliers(1f); 380 // Prevent any Un/InstallShortcutReceivers from updating the db while we are dragging 381 InstallShortcutReceiver.enableInstallQueue(); 382 UninstallShortcutReceiver.enableUninstallQueue(); 383 post(new Runnable() { 384 @Override 385 public void run() { 386 if (mIsDragOccuring) { 387 addExtraEmptyScreenOnDrag(); 388 } 389 } 390 }); 391 } 392 393 public void onDragEnd() { 394 mIsDragOccuring = false; 395 updateChildrenLayersEnabled(false); 396 mLauncher.unlockScreenOrientation(false); 397 398 // Re-enable any Un/InstallShortcutReceiver and now process any queued items 399 InstallShortcutReceiver.disableAndFlushInstallQueue(getContext()); 400 UninstallShortcutReceiver.disableAndFlushUninstallQueue(getContext()); 401 402 mDragSourceInternal = null; 403 mLauncher.onInteractionEnd(); 404 } 405 406 /** 407 * Initializes various states for this workspace. 408 */ 409 protected void initWorkspace() { 410 Context context = getContext(); 411 mCurrentPage = mDefaultPage; 412 Launcher.setScreen(mCurrentPage); 413 LauncherAppState app = LauncherAppState.getInstance(); 414 DeviceProfile grid = app.getDynamicGrid().getDeviceProfile(); 415 mIconCache = app.getIconCache(); 416 setWillNotDraw(false); 417 setClipChildren(false); 418 setClipToPadding(false); 419 setChildrenDrawnWithCacheEnabled(true); 420 421 // This is a bit of a hack to account for the fact that we translate the workspace 422 // up a bit, and still need to draw the background covering the whole screen. 423 setMinScale(mOverviewModeShrinkFactor - 0.2f); 424 setupLayoutTransition(); 425 426 final Resources res = getResources(); 427 try { 428 mBackground = res.getDrawable(R.drawable.apps_customize_bg); 429 } catch (Resources.NotFoundException e) { 430 // In this case, we will skip drawing background protection 431 } 432 433 mWallpaperOffset = new WallpaperOffsetInterpolator(); 434 Display display = mLauncher.getWindowManager().getDefaultDisplay(); 435 display.getSize(mDisplaySize); 436 437 mMaxDistanceForFolderCreation = (0.55f * grid.iconSizePx); 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 void enableLayoutTransitions() { 452 setLayoutTransition(mLayoutTransition); 453 } 454 void disableLayoutTransitions() { 455 setLayoutTransition(null); 456 } 457 458 @Override 459 protected int getScrollMode() { 460 return SmoothPagedView.X_LARGE_MODE; 461 } 462 463 @Override 464 public void onChildViewAdded(View parent, View child) { 465 if (!(child instanceof CellLayout)) { 466 throw new IllegalArgumentException("A Workspace can only have CellLayout children."); 467 } 468 CellLayout cl = ((CellLayout) child); 469 cl.setOnInterceptTouchListener(this); 470 cl.setClickable(true); 471 cl.setImportantForAccessibility(ViewCompat.IMPORTANT_FOR_ACCESSIBILITY_NO); 472 super.onChildViewAdded(parent, child); 473 } 474 475 protected boolean shouldDrawChild(View child) { 476 final CellLayout cl = (CellLayout) child; 477 return super.shouldDrawChild(child) && 478 (mIsSwitchingState || 479 cl.getShortcutsAndWidgets().getAlpha() > 0 || 480 cl.getBackgroundAlpha() > 0); 481 } 482 483 /** 484 * @return The open folder on the current screen, or null if there is none 485 */ 486 Folder getOpenFolder() { 487 DragLayer dragLayer = mLauncher.getDragLayer(); 488 int count = dragLayer.getChildCount(); 489 for (int i = 0; i < count; i++) { 490 View child = dragLayer.getChildAt(i); 491 if (child instanceof Folder) { 492 Folder folder = (Folder) child; 493 if (folder.getInfo().opened) 494 return folder; 495 } 496 } 497 return null; 498 } 499 500 boolean isTouchActive() { 501 return mTouchState != TOUCH_STATE_REST; 502 } 503 504 public void removeAllWorkspaceScreens() { 505 // Disable all layout transitions before removing all pages to ensure that we don't get the 506 // transition animations competing with us changing the scroll when we add pages or the 507 // custom content screen 508 disableLayoutTransitions(); 509 510 // Since we increment the current page when we call addCustomContentPage via bindScreens 511 // (and other places), we need to adjust the current page back when we clear the pages 512 if (hasCustomContent()) { 513 removeCustomContentPage(); 514 } 515 516 // Remove the pages and clear the screen models 517 removeAllViews(); 518 mScreenOrder.clear(); 519 mWorkspaceScreens.clear(); 520 521 // Re-enable the layout transitions 522 enableLayoutTransitions(); 523 } 524 525 public long insertNewWorkspaceScreenBeforeEmptyScreen(long screenId) { 526 // Find the index to insert this view into. If the empty screen exists, then 527 // insert it before that. 528 int insertIndex = mScreenOrder.indexOf(EXTRA_EMPTY_SCREEN_ID); 529 if (insertIndex < 0) { 530 insertIndex = mScreenOrder.size(); 531 } 532 return insertNewWorkspaceScreen(screenId, insertIndex); 533 } 534 535 public long insertNewWorkspaceScreen(long screenId) { 536 return insertNewWorkspaceScreen(screenId, getChildCount()); 537 } 538 539 public long insertNewWorkspaceScreen(long screenId, int insertIndex) { 540 if (mWorkspaceScreens.containsKey(screenId)) { 541 throw new RuntimeException("Screen id " + screenId + " already exists!"); 542 } 543 544 CellLayout newScreen = (CellLayout) 545 mLauncher.getLayoutInflater().inflate(R.layout.workspace_screen, null); 546 547 newScreen.setOnLongClickListener(mLongClickListener); 548 newScreen.setOnClickListener(mLauncher); 549 newScreen.setSoundEffectsEnabled(false); 550 mWorkspaceScreens.put(screenId, newScreen); 551 mScreenOrder.add(insertIndex, screenId); 552 addView(newScreen, insertIndex); 553 return screenId; 554 } 555 556 public void createCustomContentPage() { 557 CellLayout customScreen = (CellLayout) 558 mLauncher.getLayoutInflater().inflate(R.layout.workspace_screen, null); 559 560 mWorkspaceScreens.put(CUSTOM_CONTENT_SCREEN_ID, customScreen); 561 mScreenOrder.add(0, CUSTOM_CONTENT_SCREEN_ID); 562 563 // We want no padding on the custom content 564 customScreen.setPadding(0, 0, 0, 0); 565 566 addFullScreenPage(customScreen); 567 568 // Ensure that the current page and default page are maintained. 569 mDefaultPage = mOriginalDefaultPage + 1; 570 571 // Update the custom content hint 572 mLauncher.updateCustomContentHintVisibility(); 573 if (mRestorePage != INVALID_RESTORE_PAGE) { 574 mRestorePage = mRestorePage + 1; 575 } else { 576 setCurrentPage(getCurrentPage() + 1); 577 } 578 } 579 580 public void removeCustomContentPage() { 581 CellLayout customScreen = getScreenWithId(CUSTOM_CONTENT_SCREEN_ID); 582 if (customScreen == null) { 583 throw new RuntimeException("Expected custom content screen to exist"); 584 } 585 586 mWorkspaceScreens.remove(CUSTOM_CONTENT_SCREEN_ID); 587 mScreenOrder.remove(CUSTOM_CONTENT_SCREEN_ID); 588 removeView(customScreen); 589 590 if (mCustomContentCallbacks != null) { 591 mCustomContentCallbacks.onScrollProgressChanged(0); 592 mCustomContentCallbacks.onHide(); 593 } 594 595 mCustomContentCallbacks = null; 596 597 // Ensure that the current page and default page are maintained. 598 mDefaultPage = mOriginalDefaultPage - 1; 599 600 // Update the custom content hint 601 mLauncher.updateCustomContentHintVisibility(); 602 if (mRestorePage != INVALID_RESTORE_PAGE) { 603 mRestorePage = mRestorePage - 1; 604 } else { 605 setCurrentPage(getCurrentPage() - 1); 606 } 607 } 608 609 public void addToCustomContentPage(View customContent, CustomContentCallbacks callbacks, 610 String description) { 611 if (getPageIndexForScreenId(CUSTOM_CONTENT_SCREEN_ID) < 0) { 612 throw new RuntimeException("Expected custom content screen to exist"); 613 } 614 615 // Add the custom content to the full screen custom page 616 CellLayout customScreen = getScreenWithId(CUSTOM_CONTENT_SCREEN_ID); 617 int spanX = customScreen.getCountX(); 618 int spanY = customScreen.getCountY(); 619 CellLayout.LayoutParams lp = new CellLayout.LayoutParams(0, 0, spanX, spanY); 620 lp.canReorder = false; 621 lp.isFullscreen = true; 622 if (customContent instanceof Insettable) { 623 ((Insettable)customContent).setInsets(mInsets); 624 } 625 customScreen.removeAllViews(); 626 customScreen.addViewToCellLayout(customContent, 0, 0, lp, true); 627 mCustomContentDescription = description; 628 629 mCustomContentCallbacks = callbacks; 630 } 631 632 public void addExtraEmptyScreenOnDrag() { 633 boolean lastChildOnScreen = false; 634 boolean childOnFinalScreen = false; 635 636 // Cancel any pending removal of empty screen 637 mRemoveEmptyScreenRunnable = null; 638 639 if (mDragSourceInternal != null) { 640 if (mDragSourceInternal.getChildCount() == 1) { 641 lastChildOnScreen = true; 642 } 643 CellLayout cl = (CellLayout) mDragSourceInternal.getParent(); 644 if (indexOfChild(cl) == getChildCount() - 1) { 645 childOnFinalScreen = true; 646 } 647 } 648 649 // If this is the last item on the final screen 650 if (lastChildOnScreen && childOnFinalScreen) { 651 return; 652 } 653 if (!mWorkspaceScreens.containsKey(EXTRA_EMPTY_SCREEN_ID)) { 654 insertNewWorkspaceScreen(EXTRA_EMPTY_SCREEN_ID); 655 } 656 } 657 658 public boolean addExtraEmptyScreen() { 659 if (!mWorkspaceScreens.containsKey(EXTRA_EMPTY_SCREEN_ID)) { 660 insertNewWorkspaceScreen(EXTRA_EMPTY_SCREEN_ID); 661 return true; 662 } 663 return false; 664 } 665 666 private void convertFinalScreenToEmptyScreenIfNecessary() { 667 if (hasExtraEmptyScreen() || mScreenOrder.size() == 0) return; 668 long finalScreenId = mScreenOrder.get(mScreenOrder.size() - 1); 669 670 if (finalScreenId == CUSTOM_CONTENT_SCREEN_ID) return; 671 CellLayout finalScreen = mWorkspaceScreens.get(finalScreenId); 672 673 // If the final screen is empty, convert it to the extra empty screen 674 if (finalScreen.getShortcutsAndWidgets().getChildCount() == 0) { 675 mWorkspaceScreens.remove(finalScreenId); 676 mScreenOrder.remove(finalScreenId); 677 678 // if this is the last non-custom content screen, convert it to the empty screen 679 mWorkspaceScreens.put(EXTRA_EMPTY_SCREEN_ID, finalScreen); 680 mScreenOrder.add(EXTRA_EMPTY_SCREEN_ID); 681 } 682 } 683 684 public void removeExtraEmptyScreen(final boolean animate, final Runnable onComplete) { 685 removeExtraEmptyScreen(animate, onComplete, 0, false); 686 } 687 688 public void removeExtraEmptyScreen(final boolean animate, final Runnable onComplete, 689 final int delay, final boolean stripEmptyScreens) { 690 if (delay > 0) { 691 postDelayed(new Runnable() { 692 @Override 693 public void run() { 694 removeExtraEmptyScreen(animate, onComplete, 0, stripEmptyScreens); 695 } 696 697 }, delay); 698 return; 699 } 700 701 convertFinalScreenToEmptyScreenIfNecessary(); 702 if (hasExtraEmptyScreen()) { 703 int emptyIndex = mScreenOrder.indexOf(EXTRA_EMPTY_SCREEN_ID); 704 if (getNextPage() == emptyIndex) { 705 snapToPage(getNextPage() - 1, SNAP_OFF_EMPTY_SCREEN_DURATION); 706 fadeAndRemoveEmptyScreen(SNAP_OFF_EMPTY_SCREEN_DURATION, FADE_EMPTY_SCREEN_DURATION, 707 onComplete, stripEmptyScreens); 708 } else { 709 fadeAndRemoveEmptyScreen(0, FADE_EMPTY_SCREEN_DURATION, 710 onComplete, stripEmptyScreens); 711 } 712 return; 713 } 714 if (onComplete != null) { 715 onComplete.run(); 716 } 717 } 718 719 private void fadeAndRemoveEmptyScreen(int delay, int duration, final Runnable onComplete, 720 final boolean stripEmptyScreens) { 721 PropertyValuesHolder alpha = PropertyValuesHolder.ofFloat("alpha", 0f); 722 PropertyValuesHolder bgAlpha = PropertyValuesHolder.ofFloat("backgroundAlpha", 0f); 723 724 final CellLayout cl = mWorkspaceScreens.get(EXTRA_EMPTY_SCREEN_ID); 725 726 mRemoveEmptyScreenRunnable = new Runnable() { 727 @Override 728 public void run() { 729 if (hasExtraEmptyScreen()) { 730 mWorkspaceScreens.remove(EXTRA_EMPTY_SCREEN_ID); 731 mScreenOrder.remove(EXTRA_EMPTY_SCREEN_ID); 732 removeView(cl); 733 if (stripEmptyScreens) { 734 stripEmptyScreens(); 735 } 736 } 737 } 738 }; 739 740 ObjectAnimator oa = ObjectAnimator.ofPropertyValuesHolder(cl, alpha, bgAlpha); 741 oa.setDuration(duration); 742 oa.setStartDelay(delay); 743 oa.addListener(new AnimatorListenerAdapter() { 744 @Override 745 public void onAnimationEnd(Animator animation) { 746 if (mRemoveEmptyScreenRunnable != null) { 747 mRemoveEmptyScreenRunnable.run(); 748 } 749 if (onComplete != null) { 750 onComplete.run(); 751 } 752 } 753 }); 754 oa.start(); 755 } 756 757 public boolean hasExtraEmptyScreen() { 758 int nScreens = getChildCount(); 759 nScreens = nScreens - numCustomPages(); 760 return mWorkspaceScreens.containsKey(EXTRA_EMPTY_SCREEN_ID) && nScreens > 1; 761 } 762 763 public long commitExtraEmptyScreen() { 764 int index = getPageIndexForScreenId(EXTRA_EMPTY_SCREEN_ID); 765 CellLayout cl = mWorkspaceScreens.get(EXTRA_EMPTY_SCREEN_ID); 766 mWorkspaceScreens.remove(EXTRA_EMPTY_SCREEN_ID); 767 mScreenOrder.remove(EXTRA_EMPTY_SCREEN_ID); 768 769 long newId = LauncherAppState.getLauncherProvider().generateNewScreenId(); 770 mWorkspaceScreens.put(newId, cl); 771 mScreenOrder.add(newId); 772 773 // Update the page indicator marker 774 if (getPageIndicator() != null) { 775 getPageIndicator().updateMarker(index, getPageIndicatorMarker(index)); 776 } 777 778 // Update the model for the new screen 779 mLauncher.getModel().updateWorkspaceScreenOrder(mLauncher, mScreenOrder); 780 781 return newId; 782 } 783 784 public CellLayout getScreenWithId(long screenId) { 785 CellLayout layout = mWorkspaceScreens.get(screenId); 786 return layout; 787 } 788 789 public long getIdForScreen(CellLayout layout) { 790 Iterator<Long> iter = mWorkspaceScreens.keySet().iterator(); 791 while (iter.hasNext()) { 792 long id = iter.next(); 793 if (mWorkspaceScreens.get(id) == layout) { 794 return id; 795 } 796 } 797 return -1; 798 } 799 800 public int getPageIndexForScreenId(long screenId) { 801 return indexOfChild(mWorkspaceScreens.get(screenId)); 802 } 803 804 public long getScreenIdForPageIndex(int index) { 805 if (0 <= index && index < mScreenOrder.size()) { 806 return mScreenOrder.get(index); 807 } 808 return -1; 809 } 810 811 ArrayList<Long> getScreenOrder() { 812 return mScreenOrder; 813 } 814 815 public void stripEmptyScreens() { 816 if (isPageMoving()) { 817 mStripScreensOnPageStopMoving = true; 818 return; 819 } 820 821 int currentPage = getNextPage(); 822 ArrayList<Long> removeScreens = new ArrayList<Long>(); 823 for (Long id: mWorkspaceScreens.keySet()) { 824 CellLayout cl = mWorkspaceScreens.get(id); 825 if (id >= 0 && cl.getShortcutsAndWidgets().getChildCount() == 0) { 826 removeScreens.add(id); 827 } 828 } 829 830 // We enforce at least one page to add new items to. In the case that we remove the last 831 // such screen, we convert the last screen to the empty screen 832 int minScreens = 1 + numCustomPages(); 833 834 int pageShift = 0; 835 for (Long id: removeScreens) { 836 CellLayout cl = mWorkspaceScreens.get(id); 837 mWorkspaceScreens.remove(id); 838 mScreenOrder.remove(id); 839 840 if (getChildCount() > minScreens) { 841 if (indexOfChild(cl) < currentPage) { 842 pageShift++; 843 } 844 removeView(cl); 845 } else { 846 // if this is the last non-custom content screen, convert it to the empty screen 847 mRemoveEmptyScreenRunnable = null; 848 mWorkspaceScreens.put(EXTRA_EMPTY_SCREEN_ID, cl); 849 mScreenOrder.add(EXTRA_EMPTY_SCREEN_ID); 850 } 851 } 852 853 if (!removeScreens.isEmpty()) { 854 // Update the model if we have changed any screens 855 mLauncher.getModel().updateWorkspaceScreenOrder(mLauncher, mScreenOrder); 856 } 857 858 if (pageShift >= 0) { 859 setCurrentPage(currentPage - pageShift); 860 } 861 } 862 863 // See implementation for parameter definition. 864 void addInScreen(View child, long container, long screenId, 865 int x, int y, int spanX, int spanY) { 866 addInScreen(child, container, screenId, x, y, spanX, spanY, false, false); 867 } 868 869 // At bind time, we use the rank (screenId) to compute x and y for hotseat items. 870 // See implementation for parameter definition. 871 void addInScreenFromBind(View child, long container, long screenId, int x, int y, 872 int spanX, int spanY) { 873 addInScreen(child, container, screenId, x, y, spanX, spanY, false, true); 874 } 875 876 // See implementation for parameter definition. 877 void addInScreen(View child, long container, long screenId, int x, int y, int spanX, int spanY, 878 boolean insert) { 879 addInScreen(child, container, screenId, x, y, spanX, spanY, insert, false); 880 } 881 882 /** 883 * Adds the specified child in the specified screen. The position and dimension of 884 * the child are defined by x, y, spanX and spanY. 885 * 886 * @param child The child to add in one of the workspace's screens. 887 * @param screenId The screen in which to add the child. 888 * @param x The X position of the child in the screen's grid. 889 * @param y The Y position of the child in the screen's grid. 890 * @param spanX The number of cells spanned horizontally by the child. 891 * @param spanY The number of cells spanned vertically by the child. 892 * @param insert When true, the child is inserted at the beginning of the children list. 893 * @param computeXYFromRank When true, we use the rank (stored in screenId) to compute 894 * the x and y position in which to place hotseat items. Otherwise 895 * we use the x and y position to compute the rank. 896 */ 897 void addInScreen(View child, long container, long screenId, int x, int y, int spanX, int spanY, 898 boolean insert, boolean computeXYFromRank) { 899 if (container == LauncherSettings.Favorites.CONTAINER_DESKTOP) { 900 if (getScreenWithId(screenId) == null) { 901 Log.e(TAG, "Skipping child, screenId " + screenId + " not found"); 902 // DEBUGGING - Print out the stack trace to see where we are adding from 903 new Throwable().printStackTrace(); 904 return; 905 } 906 } 907 if (screenId == EXTRA_EMPTY_SCREEN_ID) { 908 // This should never happen 909 throw new RuntimeException("Screen id should not be EXTRA_EMPTY_SCREEN_ID"); 910 } 911 912 final CellLayout layout; 913 if (container == LauncherSettings.Favorites.CONTAINER_HOTSEAT) { 914 layout = mLauncher.getHotseat().getLayout(); 915 child.setOnKeyListener(null); 916 917 // Hide folder title in the hotseat 918 if (child instanceof FolderIcon) { 919 ((FolderIcon) child).setTextVisible(false); 920 } 921 922 if (computeXYFromRank) { 923 x = mLauncher.getHotseat().getCellXFromOrder((int) screenId); 924 y = mLauncher.getHotseat().getCellYFromOrder((int) screenId); 925 } else { 926 screenId = mLauncher.getHotseat().getOrderInHotseat(x, y); 927 } 928 } else { 929 // Show folder title if not in the hotseat 930 if (child instanceof FolderIcon) { 931 ((FolderIcon) child).setTextVisible(true); 932 } 933 layout = getScreenWithId(screenId); 934 child.setOnKeyListener(new IconKeyEventListener()); 935 } 936 937 ViewGroup.LayoutParams genericLp = child.getLayoutParams(); 938 CellLayout.LayoutParams lp; 939 if (genericLp == null || !(genericLp instanceof CellLayout.LayoutParams)) { 940 lp = new CellLayout.LayoutParams(x, y, spanX, spanY); 941 } else { 942 lp = (CellLayout.LayoutParams) genericLp; 943 lp.cellX = x; 944 lp.cellY = y; 945 lp.cellHSpan = spanX; 946 lp.cellVSpan = spanY; 947 } 948 949 if (spanX < 0 && spanY < 0) { 950 lp.isLockedToGrid = false; 951 } 952 953 // Get the canonical child id to uniquely represent this view in this screen 954 int childId = LauncherModel.getCellLayoutChildId(container, screenId, x, y, spanX, spanY); 955 boolean markCellsAsOccupied = !(child instanceof Folder); 956 if (!layout.addViewToCellLayout(child, insert ? 0 : -1, childId, lp, markCellsAsOccupied)) { 957 // TODO: This branch occurs when the workspace is adding views 958 // outside of the defined grid 959 // maybe we should be deleting these items from the LauncherModel? 960 Launcher.addDumpLog(TAG, "Failed to add to item at (" + lp.cellX + "," + lp.cellY + ") to CellLayout", true); 961 } 962 963 if (!(child instanceof Folder)) { 964 child.setHapticFeedbackEnabled(false); 965 child.setOnLongClickListener(mLongClickListener); 966 } 967 if (child instanceof DropTarget) { 968 mDragController.addDropTarget((DropTarget) child); 969 } 970 } 971 972 /** 973 * Called directly from a CellLayout (not by the framework), after we've been added as a 974 * listener via setOnInterceptTouchEventListener(). This allows us to tell the CellLayout 975 * that it should intercept touch events, which is not something that is normally supported. 976 */ 977 @Override 978 public boolean onTouch(View v, MotionEvent event) { 979 return (isSmall() || !isFinishedSwitchingState()) 980 || (!isSmall() && indexOfChild(v) != mCurrentPage); 981 } 982 983 public boolean isSwitchingState() { 984 return mIsSwitchingState; 985 } 986 987 /** This differs from isSwitchingState in that we take into account how far the transition 988 * has completed. */ 989 public boolean isFinishedSwitchingState() { 990 return !mIsSwitchingState || (mTransitionProgress > 0.5f); 991 } 992 993 protected void onWindowVisibilityChanged (int visibility) { 994 mLauncher.onWindowVisibilityChanged(visibility); 995 } 996 997 @Override 998 public boolean dispatchUnhandledMove(View focused, int direction) { 999 if (isSmall() || !isFinishedSwitchingState()) { 1000 // when the home screens are shrunken, shouldn't allow side-scrolling 1001 return false; 1002 } 1003 return super.dispatchUnhandledMove(focused, direction); 1004 } 1005 1006 @Override 1007 public boolean onInterceptTouchEvent(MotionEvent ev) { 1008 switch (ev.getAction() & MotionEvent.ACTION_MASK) { 1009 case MotionEvent.ACTION_DOWN: 1010 mXDown = ev.getX(); 1011 mYDown = ev.getY(); 1012 mTouchDownTime = System.currentTimeMillis(); 1013 break; 1014 case MotionEvent.ACTION_POINTER_UP: 1015 case MotionEvent.ACTION_UP: 1016 if (mTouchState == TOUCH_STATE_REST) { 1017 final CellLayout currentPage = (CellLayout) getChildAt(mCurrentPage); 1018 if (!currentPage.lastDownOnOccupiedCell()) { 1019 onWallpaperTap(ev); 1020 } 1021 } 1022 } 1023 return super.onInterceptTouchEvent(ev); 1024 } 1025 1026 protected void reinflateWidgetsIfNecessary() { 1027 final int clCount = getChildCount(); 1028 for (int i = 0; i < clCount; i++) { 1029 CellLayout cl = (CellLayout) getChildAt(i); 1030 ShortcutAndWidgetContainer swc = cl.getShortcutsAndWidgets(); 1031 final int itemCount = swc.getChildCount(); 1032 for (int j = 0; j < itemCount; j++) { 1033 View v = swc.getChildAt(j); 1034 1035 if (v.getTag() instanceof LauncherAppWidgetInfo) { 1036 LauncherAppWidgetInfo info = (LauncherAppWidgetInfo) v.getTag(); 1037 LauncherAppWidgetHostView lahv = (LauncherAppWidgetHostView) info.hostView; 1038 if (lahv != null && lahv.orientationChangedSincedInflation()) { 1039 mLauncher.removeAppWidget(info); 1040 // Remove the current widget which is inflated with the wrong orientation 1041 cl.removeView(lahv); 1042 mLauncher.bindAppWidget(info); 1043 } 1044 } 1045 } 1046 } 1047 } 1048 1049 @Override 1050 protected void determineScrollingStart(MotionEvent ev) { 1051 if (!isFinishedSwitchingState()) return; 1052 1053 float deltaX = ev.getX() - mXDown; 1054 float absDeltaX = Math.abs(deltaX); 1055 float absDeltaY = Math.abs(ev.getY() - mYDown); 1056 1057 if (Float.compare(absDeltaX, 0f) == 0) return; 1058 1059 float slope = absDeltaY / absDeltaX; 1060 float theta = (float) Math.atan(slope); 1061 1062 if (absDeltaX > mTouchSlop || absDeltaY > mTouchSlop) { 1063 cancelCurrentPageLongPress(); 1064 } 1065 1066 boolean passRightSwipesToCustomContent = 1067 (mTouchDownTime - mCustomContentShowTime) > CUSTOM_CONTENT_GESTURE_DELAY; 1068 1069 boolean swipeInIgnoreDirection = isLayoutRtl() ? deltaX < 0 : deltaX > 0; 1070 if (swipeInIgnoreDirection && getScreenIdForPageIndex(getCurrentPage()) == 1071 CUSTOM_CONTENT_SCREEN_ID && passRightSwipesToCustomContent) { 1072 // Pass swipes to the right to the custom content page. 1073 return; 1074 } 1075 1076 if (theta > MAX_SWIPE_ANGLE) { 1077 // Above MAX_SWIPE_ANGLE, we don't want to ever start scrolling the workspace 1078 return; 1079 } else if (theta > START_DAMPING_TOUCH_SLOP_ANGLE) { 1080 // Above START_DAMPING_TOUCH_SLOP_ANGLE and below MAX_SWIPE_ANGLE, we want to 1081 // increase the touch slop to make it harder to begin scrolling the workspace. This 1082 // results in vertically scrolling widgets to more easily. The higher the angle, the 1083 // more we increase touch slop. 1084 theta -= START_DAMPING_TOUCH_SLOP_ANGLE; 1085 float extraRatio = (float) 1086 Math.sqrt((theta / (MAX_SWIPE_ANGLE - START_DAMPING_TOUCH_SLOP_ANGLE))); 1087 super.determineScrollingStart(ev, 1 + TOUCH_SLOP_DAMPING_FACTOR * extraRatio); 1088 } else { 1089 // Below START_DAMPING_TOUCH_SLOP_ANGLE, we don't do anything special 1090 super.determineScrollingStart(ev); 1091 } 1092 } 1093 1094 protected void onPageBeginMoving() { 1095 super.onPageBeginMoving(); 1096 1097 if (isHardwareAccelerated()) { 1098 updateChildrenLayersEnabled(false); 1099 } else { 1100 if (mNextPage != INVALID_PAGE) { 1101 // we're snapping to a particular screen 1102 enableChildrenCache(mCurrentPage, mNextPage); 1103 } else { 1104 // this is when user is actively dragging a particular screen, they might 1105 // swipe it either left or right (but we won't advance by more than one screen) 1106 enableChildrenCache(mCurrentPage - 1, mCurrentPage + 1); 1107 } 1108 } 1109 1110 // Only show page outlines as we pan if we are on large screen 1111 if (LauncherAppState.getInstance().isScreenLarge()) { 1112 showOutlines(); 1113 } 1114 1115 // If we are not fading in adjacent screens, we still need to restore the alpha in case the 1116 // user scrolls while we are transitioning (should not affect dispatchDraw optimizations) 1117 if (!mWorkspaceFadeInAdjacentScreens) { 1118 for (int i = 0; i < getChildCount(); ++i) { 1119 ((CellLayout) getPageAt(i)).setShortcutAndWidgetAlpha(1f); 1120 } 1121 } 1122 } 1123 1124 protected void onPageEndMoving() { 1125 super.onPageEndMoving(); 1126 1127 if (isHardwareAccelerated()) { 1128 updateChildrenLayersEnabled(false); 1129 } else { 1130 clearChildrenCache(); 1131 } 1132 1133 if (mDragController.isDragging()) { 1134 if (isSmall()) { 1135 // If we are in springloaded mode, then force an event to check if the current touch 1136 // is under a new page (to scroll to) 1137 mDragController.forceTouchMove(); 1138 } 1139 } else { 1140 // If we are not mid-dragging, hide the page outlines if we are on a large screen 1141 if (LauncherAppState.getInstance().isScreenLarge()) { 1142 hideOutlines(); 1143 } 1144 } 1145 1146 if (mDelayedResizeRunnable != null) { 1147 mDelayedResizeRunnable.run(); 1148 mDelayedResizeRunnable = null; 1149 } 1150 1151 if (mDelayedSnapToPageRunnable != null) { 1152 mDelayedSnapToPageRunnable.run(); 1153 mDelayedSnapToPageRunnable = null; 1154 } 1155 if (mStripScreensOnPageStopMoving) { 1156 stripEmptyScreens(); 1157 mStripScreensOnPageStopMoving = false; 1158 } 1159 } 1160 1161 @Override 1162 protected void notifyPageSwitchListener() { 1163 super.notifyPageSwitchListener(); 1164 Launcher.setScreen(mCurrentPage); 1165 1166 if (hasCustomContent() && getNextPage() == 0 && !mCustomContentShowing) { 1167 mCustomContentShowing = true; 1168 if (mCustomContentCallbacks != null) { 1169 mCustomContentCallbacks.onShow(); 1170 mCustomContentShowTime = System.currentTimeMillis(); 1171 mLauncher.updateVoiceButtonProxyVisible(false); 1172 } 1173 } else if (hasCustomContent() && getNextPage() != 0 && mCustomContentShowing) { 1174 mCustomContentShowing = false; 1175 if (mCustomContentCallbacks != null) { 1176 mCustomContentCallbacks.onHide(); 1177 mLauncher.resetQSBScroll(); 1178 mLauncher.updateVoiceButtonProxyVisible(false); 1179 } 1180 } 1181 if (getPageIndicator() != null) { 1182 getPageIndicator().setContentDescription(getPageIndicatorDescription()); 1183 } 1184 } 1185 1186 protected CustomContentCallbacks getCustomContentCallbacks() { 1187 return mCustomContentCallbacks; 1188 } 1189 1190 protected void setWallpaperDimension() { 1191 String spKey = WallpaperCropActivity.getSharedPreferencesKey(); 1192 SharedPreferences sp = mLauncher.getSharedPreferences(spKey, Context.MODE_MULTI_PROCESS); 1193 WallpaperPickerActivity.suggestWallpaperDimension(mLauncher.getResources(), 1194 sp, mLauncher.getWindowManager(), mWallpaperManager); 1195 } 1196 1197 protected void snapToPage(int whichPage, Runnable r) { 1198 snapToPage(whichPage, SLOW_PAGE_SNAP_ANIMATION_DURATION, r); 1199 } 1200 1201 protected void snapToPage(int whichPage, int duration, Runnable r) { 1202 if (mDelayedSnapToPageRunnable != null) { 1203 mDelayedSnapToPageRunnable.run(); 1204 } 1205 mDelayedSnapToPageRunnable = r; 1206 snapToPage(whichPage, duration); 1207 } 1208 1209 protected void snapToScreenId(long screenId, Runnable r) { 1210 snapToPage(getPageIndexForScreenId(screenId), r); 1211 } 1212 1213 class WallpaperOffsetInterpolator implements Choreographer.FrameCallback { 1214 float mFinalOffset = 0.0f; 1215 float mCurrentOffset = 0.5f; // to force an initial update 1216 boolean mWaitingForUpdate; 1217 Choreographer mChoreographer; 1218 Interpolator mInterpolator; 1219 boolean mAnimating; 1220 long mAnimationStartTime; 1221 float mAnimationStartOffset; 1222 private final int ANIMATION_DURATION = 250; 1223 // Don't use all the wallpaper for parallax until you have at least this many pages 1224 private final int MIN_PARALLAX_PAGE_SPAN = 3; 1225 int mNumScreens; 1226 1227 public WallpaperOffsetInterpolator() { 1228 mChoreographer = Choreographer.getInstance(); 1229 mInterpolator = new DecelerateInterpolator(1.5f); 1230 } 1231 1232 @Override 1233 public void doFrame(long frameTimeNanos) { 1234 updateOffset(false); 1235 } 1236 1237 private void updateOffset(boolean force) { 1238 if (mWaitingForUpdate || force) { 1239 mWaitingForUpdate = false; 1240 if (computeScrollOffset() && mWindowToken != null) { 1241 try { 1242 mWallpaperManager.setWallpaperOffsets(mWindowToken, 1243 mWallpaperOffset.getCurrX(), 0.5f); 1244 setWallpaperOffsetSteps(); 1245 } catch (IllegalArgumentException e) { 1246 Log.e(TAG, "Error updating wallpaper offset: " + e); 1247 } 1248 } 1249 } 1250 } 1251 1252 public boolean computeScrollOffset() { 1253 final float oldOffset = mCurrentOffset; 1254 if (mAnimating) { 1255 long durationSinceAnimation = System.currentTimeMillis() - mAnimationStartTime; 1256 float t0 = durationSinceAnimation / (float) ANIMATION_DURATION; 1257 float t1 = mInterpolator.getInterpolation(t0); 1258 mCurrentOffset = mAnimationStartOffset + 1259 (mFinalOffset - mAnimationStartOffset) * t1; 1260 mAnimating = durationSinceAnimation < ANIMATION_DURATION; 1261 } else { 1262 mCurrentOffset = mFinalOffset; 1263 } 1264 1265 if (Math.abs(mCurrentOffset - mFinalOffset) > 0.0000001f) { 1266 scheduleUpdate(); 1267 } 1268 if (Math.abs(oldOffset - mCurrentOffset) > 0.0000001f) { 1269 return true; 1270 } 1271 return false; 1272 } 1273 1274 private float wallpaperOffsetForCurrentScroll() { 1275 if (getChildCount() <= 1) { 1276 return 0; 1277 } 1278 1279 // Exclude the leftmost page 1280 int emptyExtraPages = numEmptyScreensToIgnore(); 1281 int firstIndex = numCustomPages(); 1282 // Exclude the last extra empty screen (if we have > MIN_PARALLAX_PAGE_SPAN pages) 1283 int lastIndex = getChildCount() - 1 - emptyExtraPages; 1284 if (isLayoutRtl()) { 1285 int temp = firstIndex; 1286 firstIndex = lastIndex; 1287 lastIndex = temp; 1288 } 1289 1290 int firstPageScrollX = getScrollForPage(firstIndex); 1291 int scrollRange = getScrollForPage(lastIndex) - firstPageScrollX; 1292 if (scrollRange == 0) { 1293 return 0; 1294 } else { 1295 // TODO: do different behavior if it's a live wallpaper? 1296 // Sometimes the left parameter of the pages is animated during a layout transition; 1297 // this parameter offsets it to keep the wallpaper from animating as well 1298 int adjustedScroll = 1299 getScrollX() - firstPageScrollX - getLayoutTransitionOffsetForPage(0); 1300 float offset = Math.min(1, adjustedScroll / (float) scrollRange); 1301 offset = Math.max(0, offset); 1302 // Don't use up all the wallpaper parallax until you have at least 1303 // MIN_PARALLAX_PAGE_SPAN pages 1304 int numScrollingPages = getNumScreensExcludingEmptyAndCustom(); 1305 int parallaxPageSpan = Math.max(MIN_PARALLAX_PAGE_SPAN, numScrollingPages - 1); 1306 // On RTL devices, push the wallpaper offset to the right if we don't have enough 1307 // pages (ie if numScrollingPages < MIN_PARALLAX_PAGE_SPAN) 1308 int padding = isLayoutRtl() ? parallaxPageSpan - numScrollingPages + 1 : 0; 1309 return offset * (padding + numScrollingPages - 1) / parallaxPageSpan; 1310 } 1311 } 1312 1313 private int numEmptyScreensToIgnore() { 1314 int numScrollingPages = getChildCount() - numCustomPages(); 1315 if (numScrollingPages >= MIN_PARALLAX_PAGE_SPAN && hasExtraEmptyScreen()) { 1316 return 1; 1317 } else { 1318 return 0; 1319 } 1320 } 1321 1322 private int getNumScreensExcludingEmptyAndCustom() { 1323 int numScrollingPages = getChildCount() - numEmptyScreensToIgnore() - numCustomPages(); 1324 return numScrollingPages; 1325 } 1326 1327 public void syncWithScroll() { 1328 float offset = wallpaperOffsetForCurrentScroll(); 1329 mWallpaperOffset.setFinalX(offset); 1330 updateOffset(true); 1331 } 1332 1333 public float getCurrX() { 1334 return mCurrentOffset; 1335 } 1336 1337 public float getFinalX() { 1338 return mFinalOffset; 1339 } 1340 1341 private void animateToFinal() { 1342 mAnimating = true; 1343 mAnimationStartOffset = mCurrentOffset; 1344 mAnimationStartTime = System.currentTimeMillis(); 1345 } 1346 1347 private void setWallpaperOffsetSteps() { 1348 // Set wallpaper offset steps (1 / (number of screens - 1)) 1349 mWallpaperManager.setWallpaperOffsetSteps(1.0f / (getChildCount() - 1), 1.0f); 1350 } 1351 1352 public void setFinalX(float x) { 1353 scheduleUpdate(); 1354 mFinalOffset = Math.max(0f, Math.min(x, 1.0f)); 1355 if (getNumScreensExcludingEmptyAndCustom() != mNumScreens) { 1356 if (mNumScreens > 0) { 1357 // Don't animate if we're going from 0 screens 1358 animateToFinal(); 1359 } 1360 mNumScreens = getNumScreensExcludingEmptyAndCustom(); 1361 } 1362 } 1363 1364 private void scheduleUpdate() { 1365 if (!mWaitingForUpdate) { 1366 mChoreographer.postFrameCallback(this); 1367 mWaitingForUpdate = true; 1368 } 1369 } 1370 1371 public void jumpToFinal() { 1372 mCurrentOffset = mFinalOffset; 1373 } 1374 } 1375 1376 @Override 1377 public void computeScroll() { 1378 super.computeScroll(); 1379 mWallpaperOffset.syncWithScroll(); 1380 } 1381 1382 void showOutlines() { 1383 if (!isSmall() && !mIsSwitchingState) { 1384 if (mChildrenOutlineFadeOutAnimation != null) mChildrenOutlineFadeOutAnimation.cancel(); 1385 if (mChildrenOutlineFadeInAnimation != null) mChildrenOutlineFadeInAnimation.cancel(); 1386 mChildrenOutlineFadeInAnimation = LauncherAnimUtils.ofFloat(this, "childrenOutlineAlpha", 1.0f); 1387 mChildrenOutlineFadeInAnimation.setDuration(CHILDREN_OUTLINE_FADE_IN_DURATION); 1388 mChildrenOutlineFadeInAnimation.start(); 1389 } 1390 } 1391 1392 void hideOutlines() { 1393 if (!isSmall() && !mIsSwitchingState) { 1394 if (mChildrenOutlineFadeInAnimation != null) mChildrenOutlineFadeInAnimation.cancel(); 1395 if (mChildrenOutlineFadeOutAnimation != null) mChildrenOutlineFadeOutAnimation.cancel(); 1396 mChildrenOutlineFadeOutAnimation = LauncherAnimUtils.ofFloat(this, "childrenOutlineAlpha", 0.0f); 1397 mChildrenOutlineFadeOutAnimation.setDuration(CHILDREN_OUTLINE_FADE_OUT_DURATION); 1398 mChildrenOutlineFadeOutAnimation.setStartDelay(CHILDREN_OUTLINE_FADE_OUT_DELAY); 1399 mChildrenOutlineFadeOutAnimation.start(); 1400 } 1401 } 1402 1403 public void showOutlinesTemporarily() { 1404 if (!mIsPageMoving && !isTouchActive()) { 1405 snapToPage(mCurrentPage); 1406 } 1407 } 1408 1409 public void setChildrenOutlineAlpha(float alpha) { 1410 mChildrenOutlineAlpha = alpha; 1411 for (int i = 0; i < getChildCount(); i++) { 1412 CellLayout cl = (CellLayout) getChildAt(i); 1413 cl.setBackgroundAlpha(alpha); 1414 } 1415 } 1416 1417 public float getChildrenOutlineAlpha() { 1418 return mChildrenOutlineAlpha; 1419 } 1420 1421 void disableBackground() { 1422 mDrawBackground = false; 1423 } 1424 void enableBackground() { 1425 mDrawBackground = true; 1426 } 1427 1428 private void animateBackgroundGradient(float finalAlpha, boolean animated) { 1429 if (mBackground == null) return; 1430 if (mBackgroundFadeInAnimation != null) { 1431 mBackgroundFadeInAnimation.cancel(); 1432 mBackgroundFadeInAnimation = null; 1433 } 1434 if (mBackgroundFadeOutAnimation != null) { 1435 mBackgroundFadeOutAnimation.cancel(); 1436 mBackgroundFadeOutAnimation = null; 1437 } 1438 float startAlpha = getBackgroundAlpha(); 1439 if (finalAlpha != startAlpha) { 1440 if (animated) { 1441 mBackgroundFadeOutAnimation = 1442 LauncherAnimUtils.ofFloat(this, startAlpha, finalAlpha); 1443 mBackgroundFadeOutAnimation.addUpdateListener(new AnimatorUpdateListener() { 1444 public void onAnimationUpdate(ValueAnimator animation) { 1445 setBackgroundAlpha(((Float) animation.getAnimatedValue()).floatValue()); 1446 } 1447 }); 1448 mBackgroundFadeOutAnimation.setInterpolator(new DecelerateInterpolator(1.5f)); 1449 mBackgroundFadeOutAnimation.setDuration(BACKGROUND_FADE_OUT_DURATION); 1450 mBackgroundFadeOutAnimation.start(); 1451 } else { 1452 setBackgroundAlpha(finalAlpha); 1453 } 1454 } 1455 } 1456 1457 public void setBackgroundAlpha(float alpha) { 1458 if (alpha != mBackgroundAlpha) { 1459 mBackgroundAlpha = alpha; 1460 invalidate(); 1461 } 1462 } 1463 1464 public float getBackgroundAlpha() { 1465 return mBackgroundAlpha; 1466 } 1467 1468 float backgroundAlphaInterpolator(float r) { 1469 float pivotA = 0.1f; 1470 float pivotB = 0.4f; 1471 if (r < pivotA) { 1472 return 0; 1473 } else if (r > pivotB) { 1474 return 1.0f; 1475 } else { 1476 return (r - pivotA)/(pivotB - pivotA); 1477 } 1478 } 1479 1480 private void updatePageAlphaValues(int screenCenter) { 1481 boolean isInOverscroll = mOverScrollX < 0 || mOverScrollX > mMaxScrollX; 1482 if (mWorkspaceFadeInAdjacentScreens && 1483 mState == State.NORMAL && 1484 !mIsSwitchingState && 1485 !isInOverscroll) { 1486 for (int i = 0; i < getChildCount(); i++) { 1487 CellLayout child = (CellLayout) getChildAt(i); 1488 if (child != null) { 1489 float scrollProgress = getScrollProgress(screenCenter, child, i); 1490 float alpha = 1 - Math.abs(scrollProgress); 1491 child.getShortcutsAndWidgets().setAlpha(alpha); 1492 } 1493 } 1494 } 1495 } 1496 1497 private void setChildrenBackgroundAlphaMultipliers(float a) { 1498 for (int i = 0; i < getChildCount(); i++) { 1499 CellLayout child = (CellLayout) getChildAt(i); 1500 child.setBackgroundAlphaMultiplier(a); 1501 } 1502 } 1503 1504 public boolean hasCustomContent() { 1505 return (mScreenOrder.size() > 0 && mScreenOrder.get(0) == CUSTOM_CONTENT_SCREEN_ID); 1506 } 1507 1508 public int numCustomPages() { 1509 return hasCustomContent() ? 1 : 0; 1510 } 1511 1512 public boolean isOnOrMovingToCustomContent() { 1513 return hasCustomContent() && getNextPage() == 0; 1514 } 1515 1516 private void updateStateForCustomContent(int screenCenter) { 1517 float translationX = 0; 1518 float progress = 0; 1519 if (hasCustomContent()) { 1520 int index = mScreenOrder.indexOf(CUSTOM_CONTENT_SCREEN_ID); 1521 1522 int scrollDelta = getScrollX() - getScrollForPage(index) - 1523 getLayoutTransitionOffsetForPage(index); 1524 float scrollRange = getScrollForPage(index + 1) - getScrollForPage(index); 1525 translationX = scrollRange - scrollDelta; 1526 progress = (scrollRange - scrollDelta) / scrollRange; 1527 1528 if (isLayoutRtl()) { 1529 translationX = Math.min(0, translationX); 1530 } else { 1531 translationX = Math.max(0, translationX); 1532 } 1533 progress = Math.max(0, progress); 1534 } 1535 1536 if (Float.compare(progress, mLastCustomContentScrollProgress) == 0) return; 1537 1538 CellLayout cc = mWorkspaceScreens.get(CUSTOM_CONTENT_SCREEN_ID); 1539 if (progress > 0 && cc.getVisibility() != VISIBLE && !isSmall()) { 1540 cc.setVisibility(VISIBLE); 1541 } 1542 1543 mLastCustomContentScrollProgress = progress; 1544 1545 setBackgroundAlpha(progress * 0.8f); 1546 1547 if (mLauncher.getHotseat() != null) { 1548 mLauncher.getHotseat().setTranslationX(translationX); 1549 } 1550 1551 if (getPageIndicator() != null) { 1552 getPageIndicator().setTranslationX(translationX); 1553 } 1554 1555 if (mCustomContentCallbacks != null) { 1556 mCustomContentCallbacks.onScrollProgressChanged(progress); 1557 } 1558 } 1559 1560 @Override 1561 protected OnClickListener getPageIndicatorClickListener() { 1562 AccessibilityManager am = (AccessibilityManager) 1563 getContext().getSystemService(Context.ACCESSIBILITY_SERVICE); 1564 if (!am.isTouchExplorationEnabled()) { 1565 return null; 1566 } 1567 OnClickListener listener = new OnClickListener() { 1568 @Override 1569 public void onClick(View arg0) { 1570 enterOverviewMode(); 1571 } 1572 }; 1573 return listener; 1574 } 1575 1576 @Override 1577 protected void screenScrolled(int screenCenter) { 1578 final boolean isRtl = isLayoutRtl(); 1579 super.screenScrolled(screenCenter); 1580 1581 updatePageAlphaValues(screenCenter); 1582 updateStateForCustomContent(screenCenter); 1583 enableHwLayersOnVisiblePages(); 1584 1585 boolean shouldOverScroll = (mOverScrollX < 0 && (!hasCustomContent() || isLayoutRtl())) || 1586 (mOverScrollX > mMaxScrollX && (!hasCustomContent() || !isLayoutRtl())); 1587 1588 if (shouldOverScroll) { 1589 int index = 0; 1590 float pivotX = 0f; 1591 final float leftBiasedPivot = 0.25f; 1592 final float rightBiasedPivot = 0.75f; 1593 final int lowerIndex = 0; 1594 final int upperIndex = getChildCount() - 1; 1595 1596 final boolean isLeftPage = mOverScrollX < 0; 1597 index = (!isRtl && isLeftPage) || (isRtl && !isLeftPage) ? lowerIndex : upperIndex; 1598 pivotX = isLeftPage ? rightBiasedPivot : leftBiasedPivot; 1599 1600 CellLayout cl = (CellLayout) getChildAt(index); 1601 float scrollProgress = getScrollProgress(screenCenter, cl, index); 1602 cl.setOverScrollAmount(Math.abs(scrollProgress), isLeftPage); 1603 float rotation = -WORKSPACE_OVERSCROLL_ROTATION * scrollProgress; 1604 cl.setRotationY(rotation); 1605 1606 if (!mOverscrollTransformsSet || Float.compare(mLastOverscrollPivotX, pivotX) != 0) { 1607 mOverscrollTransformsSet = true; 1608 mLastOverscrollPivotX = pivotX; 1609 cl.setCameraDistance(mDensity * mCameraDistance); 1610 cl.setPivotX(cl.getMeasuredWidth() * pivotX); 1611 cl.setPivotY(cl.getMeasuredHeight() * 0.5f); 1612 cl.setOverscrollTransformsDirty(true); 1613 } 1614 } else { 1615 if (mOverscrollTransformsSet) { 1616 mOverscrollTransformsSet = false; 1617 ((CellLayout) getChildAt(0)).resetOverscrollTransforms(); 1618 ((CellLayout) getChildAt(getChildCount() - 1)).resetOverscrollTransforms(); 1619 } 1620 } 1621 } 1622 1623 @Override 1624 protected void overScroll(float amount) { 1625 acceleratedOverScroll(amount); 1626 } 1627 1628 protected void onAttachedToWindow() { 1629 super.onAttachedToWindow(); 1630 mWindowToken = getWindowToken(); 1631 computeScroll(); 1632 mDragController.setWindowToken(mWindowToken); 1633 } 1634 1635 protected void onDetachedFromWindow() { 1636 super.onDetachedFromWindow(); 1637 mWindowToken = null; 1638 } 1639 1640 protected void onResume() { 1641 if (getPageIndicator() != null) { 1642 // In case accessibility state has changed, we need to perform this on every 1643 // attach to window 1644 OnClickListener listener = getPageIndicatorClickListener(); 1645 if (listener != null) { 1646 getPageIndicator().setOnClickListener(listener); 1647 } 1648 } 1649 AccessibilityManager am = (AccessibilityManager) 1650 getContext().getSystemService(Context.ACCESSIBILITY_SERVICE); 1651 sAccessibilityEnabled = am.isEnabled(); 1652 } 1653 1654 @Override 1655 protected void onLayout(boolean changed, int left, int top, int right, int bottom) { 1656 if (mFirstLayout && mCurrentPage >= 0 && mCurrentPage < getChildCount()) { 1657 mWallpaperOffset.syncWithScroll(); 1658 mWallpaperOffset.jumpToFinal(); 1659 } 1660 super.onLayout(changed, left, top, right, bottom); 1661 } 1662 1663 @Override 1664 protected void onDraw(Canvas canvas) { 1665 // Draw the background gradient if necessary 1666 if (mBackground != null && mBackgroundAlpha > 0.0f && mDrawBackground) { 1667 int alpha = (int) (mBackgroundAlpha * 255); 1668 mBackground.setAlpha(alpha); 1669 mBackground.setBounds(getScrollX(), 0, getScrollX() + getMeasuredWidth(), 1670 getMeasuredHeight()); 1671 mBackground.draw(canvas); 1672 } 1673 1674 super.onDraw(canvas); 1675 1676 // Call back to LauncherModel to finish binding after the first draw 1677 post(mBindPages); 1678 } 1679 1680 boolean isDrawingBackgroundGradient() { 1681 return (mBackground != null && mBackgroundAlpha > 0.0f && mDrawBackground); 1682 } 1683 1684 @Override 1685 protected boolean onRequestFocusInDescendants(int direction, Rect previouslyFocusedRect) { 1686 if (!mLauncher.isAllAppsVisible()) { 1687 final Folder openFolder = getOpenFolder(); 1688 if (openFolder != null) { 1689 return openFolder.requestFocus(direction, previouslyFocusedRect); 1690 } else { 1691 return super.onRequestFocusInDescendants(direction, previouslyFocusedRect); 1692 } 1693 } 1694 return false; 1695 } 1696 1697 @Override 1698 public int getDescendantFocusability() { 1699 if (isSmall()) { 1700 return ViewGroup.FOCUS_BLOCK_DESCENDANTS; 1701 } 1702 return super.getDescendantFocusability(); 1703 } 1704 1705 @Override 1706 public void addFocusables(ArrayList<View> views, int direction, int focusableMode) { 1707 if (!mLauncher.isAllAppsVisible()) { 1708 final Folder openFolder = getOpenFolder(); 1709 if (openFolder != null) { 1710 openFolder.addFocusables(views, direction); 1711 } else { 1712 super.addFocusables(views, direction, focusableMode); 1713 } 1714 } 1715 } 1716 1717 public boolean isSmall() { 1718 return mState == State.SMALL || mState == State.SPRING_LOADED || mState == State.OVERVIEW; 1719 } 1720 1721 void enableChildrenCache(int fromPage, int toPage) { 1722 if (fromPage > toPage) { 1723 final int temp = fromPage; 1724 fromPage = toPage; 1725 toPage = temp; 1726 } 1727 1728 final int screenCount = getChildCount(); 1729 1730 fromPage = Math.max(fromPage, 0); 1731 toPage = Math.min(toPage, screenCount - 1); 1732 1733 for (int i = fromPage; i <= toPage; i++) { 1734 final CellLayout layout = (CellLayout) getChildAt(i); 1735 layout.setChildrenDrawnWithCacheEnabled(true); 1736 layout.setChildrenDrawingCacheEnabled(true); 1737 } 1738 } 1739 1740 void clearChildrenCache() { 1741 final int screenCount = getChildCount(); 1742 for (int i = 0; i < screenCount; i++) { 1743 final CellLayout layout = (CellLayout) getChildAt(i); 1744 layout.setChildrenDrawnWithCacheEnabled(false); 1745 // In software mode, we don't want the items to continue to be drawn into bitmaps 1746 if (!isHardwareAccelerated()) { 1747 layout.setChildrenDrawingCacheEnabled(false); 1748 } 1749 } 1750 } 1751 1752 private void updateChildrenLayersEnabled(boolean force) { 1753 boolean small = mState == State.SMALL || mState == State.OVERVIEW || mIsSwitchingState; 1754 boolean enableChildrenLayers = force || small || mAnimatingViewIntoPlace || isPageMoving(); 1755 1756 if (enableChildrenLayers != mChildrenLayersEnabled) { 1757 mChildrenLayersEnabled = enableChildrenLayers; 1758 if (mChildrenLayersEnabled) { 1759 enableHwLayersOnVisiblePages(); 1760 } else { 1761 for (int i = 0; i < getPageCount(); i++) { 1762 final CellLayout cl = (CellLayout) getChildAt(i); 1763 cl.enableHardwareLayer(false); 1764 } 1765 } 1766 } 1767 } 1768 1769 private void enableHwLayersOnVisiblePages() { 1770 if (mChildrenLayersEnabled) { 1771 final int screenCount = getChildCount(); 1772 getVisiblePages(mTempVisiblePagesRange); 1773 int leftScreen = mTempVisiblePagesRange[0]; 1774 int rightScreen = mTempVisiblePagesRange[1]; 1775 if (leftScreen == rightScreen) { 1776 // make sure we're caching at least two pages always 1777 if (rightScreen < screenCount - 1) { 1778 rightScreen++; 1779 } else if (leftScreen > 0) { 1780 leftScreen--; 1781 } 1782 } 1783 1784 final CellLayout customScreen = mWorkspaceScreens.get(CUSTOM_CONTENT_SCREEN_ID); 1785 for (int i = 0; i < screenCount; i++) { 1786 final CellLayout layout = (CellLayout) getPageAt(i); 1787 1788 // enable layers between left and right screen inclusive, except for the 1789 // customScreen, which may animate its content during transitions. 1790 boolean enableLayer = layout != customScreen && 1791 leftScreen <= i && i <= rightScreen && shouldDrawChild(layout); 1792 layout.enableHardwareLayer(enableLayer); 1793 } 1794 } 1795 } 1796 1797 public void buildPageHardwareLayers() { 1798 // force layers to be enabled just for the call to buildLayer 1799 updateChildrenLayersEnabled(true); 1800 if (getWindowToken() != null) { 1801 final int childCount = getChildCount(); 1802 for (int i = 0; i < childCount; i++) { 1803 CellLayout cl = (CellLayout) getChildAt(i); 1804 cl.buildHardwareLayer(); 1805 } 1806 } 1807 updateChildrenLayersEnabled(false); 1808 } 1809 1810 protected void onWallpaperTap(MotionEvent ev) { 1811 final int[] position = mTempCell; 1812 getLocationOnScreen(position); 1813 1814 int pointerIndex = ev.getActionIndex(); 1815 position[0] += (int) ev.getX(pointerIndex); 1816 position[1] += (int) ev.getY(pointerIndex); 1817 1818 mWallpaperManager.sendWallpaperCommand(getWindowToken(), 1819 ev.getAction() == MotionEvent.ACTION_UP 1820 ? WallpaperManager.COMMAND_TAP : WallpaperManager.COMMAND_SECONDARY_TAP, 1821 position[0], position[1], 0, null); 1822 } 1823 1824 /* 1825 * This interpolator emulates the rate at which the perceived scale of an object changes 1826 * as its distance from a camera increases. When this interpolator is applied to a scale 1827 * animation on a view, it evokes the sense that the object is shrinking due to moving away 1828 * from the camera. 1829 */ 1830 static class ZInterpolator implements TimeInterpolator { 1831 private float focalLength; 1832 1833 public ZInterpolator(float foc) { 1834 focalLength = foc; 1835 } 1836 1837 public float getInterpolation(float input) { 1838 return (1.0f - focalLength / (focalLength + input)) / 1839 (1.0f - focalLength / (focalLength + 1.0f)); 1840 } 1841 } 1842 1843 /* 1844 * The exact reverse of ZInterpolator. 1845 */ 1846 static class InverseZInterpolator implements TimeInterpolator { 1847 private ZInterpolator zInterpolator; 1848 public InverseZInterpolator(float foc) { 1849 zInterpolator = new ZInterpolator(foc); 1850 } 1851 public float getInterpolation(float input) { 1852 return 1 - zInterpolator.getInterpolation(1 - input); 1853 } 1854 } 1855 1856 /* 1857 * ZInterpolator compounded with an ease-out. 1858 */ 1859 static class ZoomOutInterpolator implements TimeInterpolator { 1860 private final DecelerateInterpolator decelerate = new DecelerateInterpolator(0.75f); 1861 private final ZInterpolator zInterpolator = new ZInterpolator(0.13f); 1862 1863 public float getInterpolation(float input) { 1864 return decelerate.getInterpolation(zInterpolator.getInterpolation(input)); 1865 } 1866 } 1867 1868 /* 1869 * InvereZInterpolator compounded with an ease-out. 1870 */ 1871 static class ZoomInInterpolator implements TimeInterpolator { 1872 private final InverseZInterpolator inverseZInterpolator = new InverseZInterpolator(0.35f); 1873 private final DecelerateInterpolator decelerate = new DecelerateInterpolator(3.0f); 1874 1875 public float getInterpolation(float input) { 1876 return decelerate.getInterpolation(inverseZInterpolator.getInterpolation(input)); 1877 } 1878 } 1879 1880 private final ZoomInInterpolator mZoomInInterpolator = new ZoomInInterpolator(); 1881 1882 /* 1883 * 1884 * We call these methods (onDragStartedWithItemSpans/onDragStartedWithSize) whenever we 1885 * start a drag in Launcher, regardless of whether the drag has ever entered the Workspace 1886 * 1887 * These methods mark the appropriate pages as accepting drops (which alters their visual 1888 * appearance). 1889 * 1890 */ 1891 public void onDragStartedWithItem(View v) { 1892 final Canvas canvas = new Canvas(); 1893 1894 // The outline is used to visualize where the item will land if dropped 1895 mDragOutline = createDragOutline(v, canvas, DRAG_BITMAP_PADDING); 1896 } 1897 1898 public void onDragStartedWithItem(PendingAddItemInfo info, Bitmap b, boolean clipAlpha) { 1899 final Canvas canvas = new Canvas(); 1900 1901 int[] size = estimateItemSize(info.spanX, info.spanY, info, false); 1902 1903 // The outline is used to visualize where the item will land if dropped 1904 mDragOutline = createDragOutline(b, canvas, DRAG_BITMAP_PADDING, size[0], 1905 size[1], clipAlpha); 1906 } 1907 1908 public void exitWidgetResizeMode() { 1909 DragLayer dragLayer = mLauncher.getDragLayer(); 1910 dragLayer.clearAllResizeFrames(); 1911 } 1912 1913 private void initAnimationArrays() { 1914 final int childCount = getChildCount(); 1915 if (mLastChildCount == childCount) return; 1916 1917 mOldBackgroundAlphas = new float[childCount]; 1918 mOldAlphas = new float[childCount]; 1919 mNewBackgroundAlphas = new float[childCount]; 1920 mNewAlphas = new float[childCount]; 1921 } 1922 1923 Animator getChangeStateAnimation(final State state, boolean animated) { 1924 return getChangeStateAnimation(state, animated, 0, -1); 1925 } 1926 1927 @Override 1928 protected void getOverviewModePages(int[] range) { 1929 int start = numCustomPages(); 1930 int end = getChildCount() - 1; 1931 1932 range[0] = Math.max(0, Math.min(start, getChildCount() - 1)); 1933 range[1] = Math.max(0, end); 1934 } 1935 1936 protected void onStartReordering() { 1937 super.onStartReordering(); 1938 showOutlines(); 1939 // Reordering handles its own animations, disable the automatic ones. 1940 disableLayoutTransitions(); 1941 } 1942 1943 protected void onEndReordering() { 1944 super.onEndReordering(); 1945 1946 hideOutlines(); 1947 mScreenOrder.clear(); 1948 int count = getChildCount(); 1949 for (int i = 0; i < count; i++) { 1950 CellLayout cl = ((CellLayout) getChildAt(i)); 1951 mScreenOrder.add(getIdForScreen(cl)); 1952 } 1953 1954 mLauncher.getModel().updateWorkspaceScreenOrder(mLauncher, mScreenOrder); 1955 1956 // Re-enable auto layout transitions for page deletion. 1957 enableLayoutTransitions(); 1958 } 1959 1960 public boolean isInOverviewMode() { 1961 return mState == State.OVERVIEW; 1962 } 1963 1964 public boolean enterOverviewMode() { 1965 if (mTouchState != TOUCH_STATE_REST) { 1966 return false; 1967 } 1968 enableOverviewMode(true, -1, true); 1969 return true; 1970 } 1971 1972 public void exitOverviewMode(boolean animated) { 1973 exitOverviewMode(-1, animated); 1974 } 1975 1976 public void exitOverviewMode(int snapPage, boolean animated) { 1977 enableOverviewMode(false, snapPage, animated); 1978 } 1979 1980 private void enableOverviewMode(boolean enable, int snapPage, boolean animated) { 1981 State finalState = Workspace.State.OVERVIEW; 1982 if (!enable) { 1983 finalState = Workspace.State.NORMAL; 1984 } 1985 1986 Animator workspaceAnim = getChangeStateAnimation(finalState, animated, 0, snapPage); 1987 if (workspaceAnim != null) { 1988 onTransitionPrepare(); 1989 workspaceAnim.addListener(new AnimatorListenerAdapter() { 1990 @Override 1991 public void onAnimationEnd(Animator arg0) { 1992 onTransitionEnd(); 1993 } 1994 }); 1995 workspaceAnim.start(); 1996 } 1997 } 1998 1999 int getOverviewModeTranslationY() { 2000 int childHeight = getNormalChildHeight(); 2001 int viewPortHeight = getViewportHeight(); 2002 int scaledChildHeight = (int) (mOverviewModeShrinkFactor * childHeight); 2003 2004 int offset = (viewPortHeight - scaledChildHeight) / 2; 2005 int offsetDelta = mOverviewModePageOffset - offset + mInsets.top; 2006 2007 return offsetDelta; 2008 } 2009 2010 boolean shouldVoiceButtonProxyBeVisible() { 2011 if (isOnOrMovingToCustomContent()) { 2012 return false; 2013 } 2014 if (mState != State.NORMAL) { 2015 return false; 2016 } 2017 return true; 2018 } 2019 2020 public void updateInteractionForState() { 2021 if (mState != State.NORMAL) { 2022 mLauncher.onInteractionBegin(); 2023 } else { 2024 mLauncher.onInteractionEnd(); 2025 } 2026 } 2027 2028 private void setState(State state) { 2029 mState = state; 2030 updateInteractionForState(); 2031 updateAccessibilityFlags(); 2032 } 2033 2034 private void updateAccessibilityFlags() { 2035 int accessible = mState == State.NORMAL ? 2036 ViewCompat.IMPORTANT_FOR_ACCESSIBILITY_YES : 2037 ViewCompat.IMPORTANT_FOR_ACCESSIBILITY_NO_HIDE_DESCENDANTS; 2038 setImportantForAccessibility(accessible); 2039 } 2040 2041 Animator getChangeStateAnimation(final State state, boolean animated, int delay, int snapPage) { 2042 if (mState == state) { 2043 return null; 2044 } 2045 2046 // Initialize animation arrays for the first time if necessary 2047 initAnimationArrays(); 2048 2049 AnimatorSet anim = animated ? LauncherAnimUtils.createAnimatorSet() : null; 2050 2051 final State oldState = mState; 2052 final boolean oldStateIsNormal = (oldState == State.NORMAL); 2053 final boolean oldStateIsSpringLoaded = (oldState == State.SPRING_LOADED); 2054 final boolean oldStateIsSmall = (oldState == State.SMALL); 2055 final boolean oldStateIsOverview = (oldState == State.OVERVIEW); 2056 setState(state); 2057 final boolean stateIsNormal = (state == State.NORMAL); 2058 final boolean stateIsSpringLoaded = (state == State.SPRING_LOADED); 2059 final boolean stateIsSmall = (state == State.SMALL); 2060 final boolean stateIsOverview = (state == State.OVERVIEW); 2061 float finalBackgroundAlpha = (stateIsSpringLoaded || stateIsOverview) ? 1.0f : 0f; 2062 float finalHotseatAndPageIndicatorAlpha = (stateIsOverview || stateIsSmall) ? 0f : 1f; 2063 float finalOverviewPanelAlpha = stateIsOverview ? 1f : 0f; 2064 float finalSearchBarAlpha = !stateIsNormal ? 0f : 1f; 2065 float finalWorkspaceTranslationY = stateIsOverview ? getOverviewModeTranslationY() : 0; 2066 2067 boolean workspaceToAllApps = (oldStateIsNormal && stateIsSmall); 2068 boolean allAppsToWorkspace = (oldStateIsSmall && stateIsNormal); 2069 boolean workspaceToOverview = (oldStateIsNormal && stateIsOverview); 2070 boolean overviewToWorkspace = (oldStateIsOverview && stateIsNormal); 2071 2072 mNewScale = 1.0f; 2073 2074 if (oldStateIsOverview) { 2075 disableFreeScroll(snapPage); 2076 } else if (stateIsOverview) { 2077 enableFreeScroll(); 2078 } 2079 2080 if (state != State.NORMAL) { 2081 if (stateIsSpringLoaded) { 2082 mNewScale = mSpringLoadedShrinkFactor; 2083 } else if (stateIsOverview) { 2084 mNewScale = mOverviewModeShrinkFactor; 2085 } else if (stateIsSmall){ 2086 mNewScale = mOverviewModeShrinkFactor - 0.3f; 2087 } 2088 if (workspaceToAllApps) { 2089 updateChildrenLayersEnabled(false); 2090 } 2091 } 2092 2093 final int duration; 2094 if (workspaceToAllApps) { 2095 duration = getResources().getInteger(R.integer.config_workspaceUnshrinkTime); 2096 } else if (workspaceToOverview || overviewToWorkspace) { 2097 duration = getResources().getInteger(R.integer.config_overviewTransitionTime); 2098 } else { 2099 duration = getResources().getInteger(R.integer.config_appsCustomizeWorkspaceShrinkTime); 2100 } 2101 2102 for (int i = 0; i < getChildCount(); i++) { 2103 final CellLayout cl = (CellLayout) getChildAt(i); 2104 boolean isCurrentPage = (i == getNextPage()); 2105 float initialAlpha = cl.getShortcutsAndWidgets().getAlpha(); 2106 float finalAlpha; 2107 if (stateIsSmall) { 2108 finalAlpha = 0f; 2109 } else if (stateIsNormal && mWorkspaceFadeInAdjacentScreens) { 2110 finalAlpha = i == getNextPage() ? 1f : 0f; 2111 } else { 2112 finalAlpha = 1f; 2113 } 2114 2115 // If we are animating to/from the small state, then hide the side pages and fade the 2116 // current page in 2117 if (!mIsSwitchingState) { 2118 if (workspaceToAllApps || allAppsToWorkspace) { 2119 if (allAppsToWorkspace && isCurrentPage) { 2120 initialAlpha = 0f; 2121 } else if (!isCurrentPage) { 2122 initialAlpha = finalAlpha = 0f; 2123 } 2124 cl.setShortcutAndWidgetAlpha(initialAlpha); 2125 } 2126 } 2127 2128 mOldAlphas[i] = initialAlpha; 2129 mNewAlphas[i] = finalAlpha; 2130 if (animated) { 2131 mOldBackgroundAlphas[i] = cl.getBackgroundAlpha(); 2132 mNewBackgroundAlphas[i] = finalBackgroundAlpha; 2133 } else { 2134 cl.setBackgroundAlpha(finalBackgroundAlpha); 2135 cl.setShortcutAndWidgetAlpha(finalAlpha); 2136 } 2137 } 2138 2139 final View searchBar = mLauncher.getQsbBar(); 2140 final View overviewPanel = mLauncher.getOverviewPanel(); 2141 final View hotseat = mLauncher.getHotseat(); 2142 if (animated) { 2143 anim.setDuration(duration); 2144 LauncherViewPropertyAnimator scale = new LauncherViewPropertyAnimator(this); 2145 scale.scaleX(mNewScale) 2146 .scaleY(mNewScale) 2147 .translationY(finalWorkspaceTranslationY) 2148 .setInterpolator(mZoomInInterpolator); 2149 anim.play(scale); 2150 for (int index = 0; index < getChildCount(); index++) { 2151 final int i = index; 2152 final CellLayout cl = (CellLayout) getChildAt(i); 2153 float currentAlpha = cl.getShortcutsAndWidgets().getAlpha(); 2154 if (mOldAlphas[i] == 0 && mNewAlphas[i] == 0) { 2155 cl.setBackgroundAlpha(mNewBackgroundAlphas[i]); 2156 cl.setShortcutAndWidgetAlpha(mNewAlphas[i]); 2157 } else { 2158 if (mOldAlphas[i] != mNewAlphas[i] || currentAlpha != mNewAlphas[i]) { 2159 LauncherViewPropertyAnimator alphaAnim = 2160 new LauncherViewPropertyAnimator(cl.getShortcutsAndWidgets()); 2161 alphaAnim.alpha(mNewAlphas[i]) 2162 .setInterpolator(mZoomInInterpolator); 2163 anim.play(alphaAnim); 2164 } 2165 if (mOldBackgroundAlphas[i] != 0 || 2166 mNewBackgroundAlphas[i] != 0) { 2167 ValueAnimator bgAnim = 2168 LauncherAnimUtils.ofFloat(cl, 0f, 1f); 2169 bgAnim.setInterpolator(mZoomInInterpolator); 2170 bgAnim.addUpdateListener(new LauncherAnimatorUpdateListener() { 2171 public void onAnimationUpdate(float a, float b) { 2172 cl.setBackgroundAlpha( 2173 a * mOldBackgroundAlphas[i] + 2174 b * mNewBackgroundAlphas[i]); 2175 } 2176 }); 2177 anim.play(bgAnim); 2178 } 2179 } 2180 } 2181 ObjectAnimator pageIndicatorAlpha = null; 2182 if (getPageIndicator() != null) { 2183 pageIndicatorAlpha = ObjectAnimator.ofFloat(getPageIndicator(), "alpha", 2184 finalHotseatAndPageIndicatorAlpha); 2185 } 2186 ObjectAnimator hotseatAlpha = ObjectAnimator.ofFloat(hotseat, "alpha", 2187 finalHotseatAndPageIndicatorAlpha); 2188 ObjectAnimator searchBarAlpha = ObjectAnimator.ofFloat(searchBar, 2189 "alpha", finalSearchBarAlpha); 2190 ObjectAnimator overviewPanelAlpha = ObjectAnimator.ofFloat(overviewPanel, 2191 "alpha", finalOverviewPanelAlpha); 2192 2193 overviewPanelAlpha.addListener(new AlphaUpdateListener(overviewPanel)); 2194 hotseatAlpha.addListener(new AlphaUpdateListener(hotseat)); 2195 searchBarAlpha.addListener(new AlphaUpdateListener(searchBar)); 2196 2197 if (workspaceToOverview) { 2198 hotseatAlpha.setInterpolator(new DecelerateInterpolator(2)); 2199 } else if (overviewToWorkspace) { 2200 overviewPanelAlpha.setInterpolator(new DecelerateInterpolator(2)); 2201 } 2202 2203 if (getPageIndicator() != null) { 2204 pageIndicatorAlpha.addListener(new AlphaUpdateListener(getPageIndicator())); 2205 } 2206 2207 anim.play(overviewPanelAlpha); 2208 anim.play(hotseatAlpha); 2209 anim.play(searchBarAlpha); 2210 anim.play(pageIndicatorAlpha); 2211 anim.setStartDelay(delay); 2212 } else { 2213 overviewPanel.setAlpha(finalOverviewPanelAlpha); 2214 AlphaUpdateListener.updateVisibility(overviewPanel); 2215 hotseat.setAlpha(finalHotseatAndPageIndicatorAlpha); 2216 AlphaUpdateListener.updateVisibility(hotseat); 2217 if (getPageIndicator() != null) { 2218 getPageIndicator().setAlpha(finalHotseatAndPageIndicatorAlpha); 2219 AlphaUpdateListener.updateVisibility(getPageIndicator()); 2220 } 2221 searchBar.setAlpha(finalSearchBarAlpha); 2222 AlphaUpdateListener.updateVisibility(searchBar); 2223 updateCustomContentVisibility(); 2224 setScaleX(mNewScale); 2225 setScaleY(mNewScale); 2226 setTranslationY(finalWorkspaceTranslationY); 2227 } 2228 mLauncher.updateVoiceButtonProxyVisible(false); 2229 2230 if (stateIsSpringLoaded) { 2231 // Right now we're covered by Apps Customize 2232 // Show the background gradient immediately, so the gradient will 2233 // be showing once AppsCustomize disappears 2234 animateBackgroundGradient(getResources().getInteger( 2235 R.integer.config_appsCustomizeSpringLoadedBgAlpha) / 100f, false); 2236 } else if (stateIsOverview) { 2237 animateBackgroundGradient(getResources().getInteger( 2238 R.integer.config_appsCustomizeSpringLoadedBgAlpha) / 100f, true); 2239 } else { 2240 // Fade the background gradient away 2241 animateBackgroundGradient(0f, animated); 2242 } 2243 return anim; 2244 } 2245 2246 static class AlphaUpdateListener implements AnimatorUpdateListener, AnimatorListener { 2247 View view; 2248 public AlphaUpdateListener(View v) { 2249 view = v; 2250 } 2251 2252 @Override 2253 public void onAnimationUpdate(ValueAnimator arg0) { 2254 updateVisibility(view); 2255 } 2256 2257 public static void updateVisibility(View view) { 2258 // We want to avoid the extra layout pass by setting the views to GONE unless 2259 // accessibility is on, in which case not setting them to GONE causes a glitch. 2260 int invisibleState = sAccessibilityEnabled ? GONE : INVISIBLE; 2261 if (view.getAlpha() < ALPHA_CUTOFF_THRESHOLD && view.getVisibility() != invisibleState) { 2262 view.setVisibility(invisibleState); 2263 } else if (view.getAlpha() > ALPHA_CUTOFF_THRESHOLD 2264 && view.getVisibility() != VISIBLE) { 2265 view.setVisibility(VISIBLE); 2266 } 2267 } 2268 2269 @Override 2270 public void onAnimationCancel(Animator arg0) { 2271 } 2272 2273 @Override 2274 public void onAnimationEnd(Animator arg0) { 2275 updateVisibility(view); 2276 } 2277 2278 @Override 2279 public void onAnimationRepeat(Animator arg0) { 2280 } 2281 2282 @Override 2283 public void onAnimationStart(Animator arg0) { 2284 // We want the views to be visible for animation, so fade-in/out is visible 2285 view.setVisibility(VISIBLE); 2286 } 2287 } 2288 2289 @Override 2290 public void onLauncherTransitionPrepare(Launcher l, boolean animated, boolean toWorkspace) { 2291 onTransitionPrepare(); 2292 } 2293 2294 @Override 2295 public void onLauncherTransitionStart(Launcher l, boolean animated, boolean toWorkspace) { 2296 } 2297 2298 @Override 2299 public void onLauncherTransitionStep(Launcher l, float t) { 2300 mTransitionProgress = t; 2301 } 2302 2303 @Override 2304 public void onLauncherTransitionEnd(Launcher l, boolean animated, boolean toWorkspace) { 2305 onTransitionEnd(); 2306 } 2307 2308 private void onTransitionPrepare() { 2309 mIsSwitchingState = true; 2310 2311 // Invalidate here to ensure that the pages are rendered during the state change transition. 2312 invalidate(); 2313 2314 updateChildrenLayersEnabled(false); 2315 hideCustomContentIfNecessary(); 2316 } 2317 2318 void updateCustomContentVisibility() { 2319 int visibility = mState == Workspace.State.NORMAL ? VISIBLE : INVISIBLE; 2320 if (hasCustomContent()) { 2321 mWorkspaceScreens.get(CUSTOM_CONTENT_SCREEN_ID).setVisibility(visibility); 2322 } 2323 } 2324 2325 void showCustomContentIfNecessary() { 2326 boolean show = mState == Workspace.State.NORMAL; 2327 if (show && hasCustomContent()) { 2328 mWorkspaceScreens.get(CUSTOM_CONTENT_SCREEN_ID).setVisibility(VISIBLE); 2329 } 2330 } 2331 2332 void hideCustomContentIfNecessary() { 2333 boolean hide = mState != Workspace.State.NORMAL; 2334 if (hide && hasCustomContent()) { 2335 mWorkspaceScreens.get(CUSTOM_CONTENT_SCREEN_ID).setVisibility(INVISIBLE); 2336 } 2337 } 2338 2339 private void onTransitionEnd() { 2340 mIsSwitchingState = false; 2341 updateChildrenLayersEnabled(false); 2342 // The code in getChangeStateAnimation to determine initialAlpha and finalAlpha will ensure 2343 // ensure that only the current page is visible during (and subsequently, after) the 2344 // transition animation. If fade adjacent pages is disabled, then re-enable the page 2345 // visibility after the transition animation. 2346 if (!mWorkspaceFadeInAdjacentScreens) { 2347 for (int i = 0; i < getChildCount(); i++) { 2348 final CellLayout cl = (CellLayout) getChildAt(i); 2349 cl.setShortcutAndWidgetAlpha(1f); 2350 } 2351 } 2352 showCustomContentIfNecessary(); 2353 } 2354 2355 @Override 2356 public View getContent() { 2357 return this; 2358 } 2359 2360 /** 2361 * Draw the View v into the given Canvas. 2362 * 2363 * @param v the view to draw 2364 * @param destCanvas the canvas to draw on 2365 * @param padding the horizontal and vertical padding to use when drawing 2366 */ 2367 private void drawDragView(View v, Canvas destCanvas, int padding, boolean pruneToDrawable) { 2368 final Rect clipRect = mTempRect; 2369 v.getDrawingRect(clipRect); 2370 2371 boolean textVisible = false; 2372 2373 destCanvas.save(); 2374 if (v instanceof TextView && pruneToDrawable) { 2375 Drawable d = ((TextView) v).getCompoundDrawables()[1]; 2376 clipRect.set(0, 0, d.getIntrinsicWidth() + padding, d.getIntrinsicHeight() + padding); 2377 destCanvas.translate(padding / 2, padding / 2); 2378 d.draw(destCanvas); 2379 } else { 2380 if (v instanceof FolderIcon) { 2381 // For FolderIcons the text can bleed into the icon area, and so we need to 2382 // hide the text completely (which can't be achieved by clipping). 2383 if (((FolderIcon) v).getTextVisible()) { 2384 ((FolderIcon) v).setTextVisible(false); 2385 textVisible = true; 2386 } 2387 } else if (v instanceof BubbleTextView) { 2388 final BubbleTextView tv = (BubbleTextView) v; 2389 clipRect.bottom = tv.getExtendedPaddingTop() - (int) BubbleTextView.PADDING_V + 2390 tv.getLayout().getLineTop(0); 2391 } else if (v instanceof TextView) { 2392 final TextView tv = (TextView) v; 2393 clipRect.bottom = tv.getExtendedPaddingTop() - tv.getCompoundDrawablePadding() + 2394 tv.getLayout().getLineTop(0); 2395 } 2396 destCanvas.translate(-v.getScrollX() + padding / 2, -v.getScrollY() + padding / 2); 2397 destCanvas.clipRect(clipRect, Op.REPLACE); 2398 v.draw(destCanvas); 2399 2400 // Restore text visibility of FolderIcon if necessary 2401 if (textVisible) { 2402 ((FolderIcon) v).setTextVisible(true); 2403 } 2404 } 2405 destCanvas.restore(); 2406 } 2407 2408 /** 2409 * Returns a new bitmap to show when the given View is being dragged around. 2410 * Responsibility for the bitmap is transferred to the caller. 2411 */ 2412 public Bitmap createDragBitmap(View v, Canvas canvas, int padding) { 2413 Bitmap b; 2414 2415 if (v instanceof TextView) { 2416 Drawable d = ((TextView) v).getCompoundDrawables()[1]; 2417 b = Bitmap.createBitmap(d.getIntrinsicWidth() + padding, 2418 d.getIntrinsicHeight() + padding, Bitmap.Config.ARGB_8888); 2419 } else { 2420 b = Bitmap.createBitmap( 2421 v.getWidth() + padding, v.getHeight() + padding, Bitmap.Config.ARGB_8888); 2422 } 2423 2424 canvas.setBitmap(b); 2425 drawDragView(v, canvas, padding, true); 2426 canvas.setBitmap(null); 2427 2428 return b; 2429 } 2430 2431 /** 2432 * Returns a new bitmap to be used as the object outline, e.g. to visualize the drop location. 2433 * Responsibility for the bitmap is transferred to the caller. 2434 */ 2435 private Bitmap createDragOutline(View v, Canvas canvas, int padding) { 2436 final int outlineColor = getResources().getColor(R.color.outline_color); 2437 final Bitmap b = Bitmap.createBitmap( 2438 v.getWidth() + padding, v.getHeight() + padding, Bitmap.Config.ARGB_8888); 2439 2440 canvas.setBitmap(b); 2441 drawDragView(v, canvas, padding, true); 2442 mOutlineHelper.applyMediumExpensiveOutlineWithBlur(b, canvas, outlineColor, outlineColor); 2443 canvas.setBitmap(null); 2444 return b; 2445 } 2446 2447 /** 2448 * Returns a new bitmap to be used as the object outline, e.g. to visualize the drop location. 2449 * Responsibility for the bitmap is transferred to the caller. 2450 */ 2451 private Bitmap createDragOutline(Bitmap orig, Canvas canvas, int padding, int w, int h, 2452 boolean clipAlpha) { 2453 final int outlineColor = getResources().getColor(R.color.outline_color); 2454 final Bitmap b = Bitmap.createBitmap(w, h, Bitmap.Config.ARGB_8888); 2455 canvas.setBitmap(b); 2456 2457 Rect src = new Rect(0, 0, orig.getWidth(), orig.getHeight()); 2458 float scaleFactor = Math.min((w - padding) / (float) orig.getWidth(), 2459 (h - padding) / (float) orig.getHeight()); 2460 int scaledWidth = (int) (scaleFactor * orig.getWidth()); 2461 int scaledHeight = (int) (scaleFactor * orig.getHeight()); 2462 Rect dst = new Rect(0, 0, scaledWidth, scaledHeight); 2463 2464 // center the image 2465 dst.offset((w - scaledWidth) / 2, (h - scaledHeight) / 2); 2466 2467 canvas.drawBitmap(orig, src, dst, null); 2468 mOutlineHelper.applyMediumExpensiveOutlineWithBlur(b, canvas, outlineColor, outlineColor, 2469 clipAlpha); 2470 canvas.setBitmap(null); 2471 2472 return b; 2473 } 2474 2475 void startDrag(CellLayout.CellInfo cellInfo) { 2476 View child = cellInfo.cell; 2477 2478 // Make sure the drag was started by a long press as opposed to a long click. 2479 if (!child.isInTouchMode()) { 2480 return; 2481 } 2482 2483 mDragInfo = cellInfo; 2484 child.setVisibility(INVISIBLE); 2485 CellLayout layout = (CellLayout) child.getParent().getParent(); 2486 layout.prepareChildForDrag(child); 2487 2488 child.clearFocus(); 2489 child.setPressed(false); 2490 2491 final Canvas canvas = new Canvas(); 2492 2493 // The outline is used to visualize where the item will land if dropped 2494 mDragOutline = createDragOutline(child, canvas, DRAG_BITMAP_PADDING); 2495 beginDragShared(child, this); 2496 } 2497 2498 public void beginDragShared(View child, DragSource source) { 2499 // The drag bitmap follows the touch point around on the screen 2500 final Bitmap b = createDragBitmap(child, new Canvas(), DRAG_BITMAP_PADDING); 2501 2502 final int bmpWidth = b.getWidth(); 2503 final int bmpHeight = b.getHeight(); 2504 2505 float scale = mLauncher.getDragLayer().getLocationInDragLayer(child, mTempXY); 2506 int dragLayerX = 2507 Math.round(mTempXY[0] - (bmpWidth - scale * child.getWidth()) / 2); 2508 int dragLayerY = 2509 Math.round(mTempXY[1] - (bmpHeight - scale * bmpHeight) / 2 2510 - DRAG_BITMAP_PADDING / 2); 2511 2512 LauncherAppState app = LauncherAppState.getInstance(); 2513 DeviceProfile grid = app.getDynamicGrid().getDeviceProfile(); 2514 Point dragVisualizeOffset = null; 2515 Rect dragRect = null; 2516 if (child instanceof BubbleTextView || child instanceof PagedViewIcon) { 2517 int iconSize = grid.iconSizePx; 2518 int top = child.getPaddingTop(); 2519 int left = (bmpWidth - iconSize) / 2; 2520 int right = left + iconSize; 2521 int bottom = top + iconSize; 2522 dragLayerY += top; 2523 // Note: The drag region is used to calculate drag layer offsets, but the 2524 // dragVisualizeOffset in addition to the dragRect (the size) to position the outline. 2525 dragVisualizeOffset = new Point(-DRAG_BITMAP_PADDING / 2, DRAG_BITMAP_PADDING / 2); 2526 dragRect = new Rect(left, top, right, bottom); 2527 } else if (child instanceof FolderIcon) { 2528 int previewSize = grid.folderIconSizePx; 2529 dragRect = new Rect(0, child.getPaddingTop(), child.getWidth(), previewSize); 2530 } 2531 2532 // Clear the pressed state if necessary 2533 if (child instanceof BubbleTextView) { 2534 BubbleTextView icon = (BubbleTextView) child; 2535 icon.clearPressedOrFocusedBackground(); 2536 } 2537 2538 mDragController.startDrag(b, dragLayerX, dragLayerY, source, child.getTag(), 2539 DragController.DRAG_ACTION_MOVE, dragVisualizeOffset, dragRect, scale); 2540 2541 if (child.getParent() instanceof ShortcutAndWidgetContainer) { 2542 mDragSourceInternal = (ShortcutAndWidgetContainer) child.getParent(); 2543 } 2544 2545 b.recycle(); 2546 } 2547 2548 void addApplicationShortcut(ShortcutInfo info, CellLayout target, long container, long screenId, 2549 int cellX, int cellY, boolean insertAtFirst, int intersectX, int intersectY) { 2550 View view = mLauncher.createShortcut(R.layout.application, target, (ShortcutInfo) info); 2551 2552 final int[] cellXY = new int[2]; 2553 target.findCellForSpanThatIntersects(cellXY, 1, 1, intersectX, intersectY); 2554 addInScreen(view, container, screenId, cellXY[0], cellXY[1], 1, 1, insertAtFirst); 2555 2556 LauncherModel.addOrMoveItemInDatabase(mLauncher, info, container, screenId, cellXY[0], 2557 cellXY[1]); 2558 } 2559 2560 public boolean transitionStateShouldAllowDrop() { 2561 return ((!isSwitchingState() || mTransitionProgress > 0.5f) && mState != State.SMALL); 2562 } 2563 2564 /** 2565 * {@inheritDoc} 2566 */ 2567 public boolean acceptDrop(DragObject d) { 2568 // If it's an external drop (e.g. from All Apps), check if it should be accepted 2569 CellLayout dropTargetLayout = mDropToLayout; 2570 if (d.dragSource != this) { 2571 // Don't accept the drop if we're not over a screen at time of drop 2572 if (dropTargetLayout == null) { 2573 return false; 2574 } 2575 if (!transitionStateShouldAllowDrop()) return false; 2576 2577 mDragViewVisualCenter = getDragViewVisualCenter(d.x, d.y, d.xOffset, d.yOffset, 2578 d.dragView, mDragViewVisualCenter); 2579 2580 // We want the point to be mapped to the dragTarget. 2581 if (mLauncher.isHotseatLayout(dropTargetLayout)) { 2582 mapPointFromSelfToHotseatLayout(mLauncher.getHotseat(), mDragViewVisualCenter); 2583 } else { 2584 mapPointFromSelfToChild(dropTargetLayout, mDragViewVisualCenter, null); 2585 } 2586 2587 int spanX = 1; 2588 int spanY = 1; 2589 if (mDragInfo != null) { 2590 final CellLayout.CellInfo dragCellInfo = mDragInfo; 2591 spanX = dragCellInfo.spanX; 2592 spanY = dragCellInfo.spanY; 2593 } else { 2594 final ItemInfo dragInfo = (ItemInfo) d.dragInfo; 2595 spanX = dragInfo.spanX; 2596 spanY = dragInfo.spanY; 2597 } 2598 2599 int minSpanX = spanX; 2600 int minSpanY = spanY; 2601 if (d.dragInfo instanceof PendingAddWidgetInfo) { 2602 minSpanX = ((PendingAddWidgetInfo) d.dragInfo).minSpanX; 2603 minSpanY = ((PendingAddWidgetInfo) d.dragInfo).minSpanY; 2604 } 2605 2606 mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], 2607 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, dropTargetLayout, 2608 mTargetCell); 2609 float distance = dropTargetLayout.getDistanceFromCell(mDragViewVisualCenter[0], 2610 mDragViewVisualCenter[1], mTargetCell); 2611 if (willCreateUserFolder((ItemInfo) d.dragInfo, dropTargetLayout, 2612 mTargetCell, distance, true)) { 2613 return true; 2614 } 2615 if (willAddToExistingUserFolder((ItemInfo) d.dragInfo, dropTargetLayout, 2616 mTargetCell, distance)) { 2617 return true; 2618 } 2619 2620 int[] resultSpan = new int[2]; 2621 mTargetCell = dropTargetLayout.createArea((int) mDragViewVisualCenter[0], 2622 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, spanX, spanY, 2623 null, mTargetCell, resultSpan, CellLayout.MODE_ACCEPT_DROP); 2624 boolean foundCell = mTargetCell[0] >= 0 && mTargetCell[1] >= 0; 2625 2626 // Don't accept the drop if there's no room for the item 2627 if (!foundCell) { 2628 // Don't show the message if we are dropping on the AllApps button and the hotseat 2629 // is full 2630 boolean isHotseat = mLauncher.isHotseatLayout(dropTargetLayout); 2631 if (mTargetCell != null && isHotseat) { 2632 Hotseat hotseat = mLauncher.getHotseat(); 2633 if (hotseat.isAllAppsButtonRank( 2634 hotseat.getOrderInHotseat(mTargetCell[0], mTargetCell[1]))) { 2635 return false; 2636 } 2637 } 2638 2639 mLauncher.showOutOfSpaceMessage(isHotseat); 2640 return false; 2641 } 2642 } 2643 2644 long screenId = getIdForScreen(dropTargetLayout); 2645 if (screenId == EXTRA_EMPTY_SCREEN_ID) { 2646 commitExtraEmptyScreen(); 2647 } 2648 2649 return true; 2650 } 2651 2652 boolean willCreateUserFolder(ItemInfo info, CellLayout target, int[] targetCell, float 2653 distance, boolean considerTimeout) { 2654 if (distance > mMaxDistanceForFolderCreation) return false; 2655 View dropOverView = target.getChildAt(targetCell[0], targetCell[1]); 2656 2657 if (dropOverView != null) { 2658 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) dropOverView.getLayoutParams(); 2659 if (lp.useTmpCoords && (lp.tmpCellX != lp.cellX || lp.tmpCellY != lp.tmpCellY)) { 2660 return false; 2661 } 2662 } 2663 2664 boolean hasntMoved = false; 2665 if (mDragInfo != null) { 2666 hasntMoved = dropOverView == mDragInfo.cell; 2667 } 2668 2669 if (dropOverView == null || hasntMoved || (considerTimeout && !mCreateUserFolderOnDrop)) { 2670 return false; 2671 } 2672 2673 boolean aboveShortcut = (dropOverView.getTag() instanceof ShortcutInfo); 2674 boolean willBecomeShortcut = 2675 (info.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPLICATION || 2676 info.itemType == LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT); 2677 2678 return (aboveShortcut && willBecomeShortcut); 2679 } 2680 2681 boolean willAddToExistingUserFolder(Object dragInfo, CellLayout target, int[] targetCell, 2682 float distance) { 2683 if (distance > mMaxDistanceForFolderCreation) return false; 2684 View dropOverView = target.getChildAt(targetCell[0], targetCell[1]); 2685 2686 if (dropOverView != null) { 2687 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) dropOverView.getLayoutParams(); 2688 if (lp.useTmpCoords && (lp.tmpCellX != lp.cellX || lp.tmpCellY != lp.tmpCellY)) { 2689 return false; 2690 } 2691 } 2692 2693 if (dropOverView instanceof FolderIcon) { 2694 FolderIcon fi = (FolderIcon) dropOverView; 2695 if (fi.acceptDrop(dragInfo)) { 2696 return true; 2697 } 2698 } 2699 return false; 2700 } 2701 2702 boolean createUserFolderIfNecessary(View newView, long container, CellLayout target, 2703 int[] targetCell, float distance, boolean external, DragView dragView, 2704 Runnable postAnimationRunnable) { 2705 if (distance > mMaxDistanceForFolderCreation) return false; 2706 View v = target.getChildAt(targetCell[0], targetCell[1]); 2707 2708 boolean hasntMoved = false; 2709 if (mDragInfo != null) { 2710 CellLayout cellParent = getParentCellLayoutForView(mDragInfo.cell); 2711 hasntMoved = (mDragInfo.cellX == targetCell[0] && 2712 mDragInfo.cellY == targetCell[1]) && (cellParent == target); 2713 } 2714 2715 if (v == null || hasntMoved || !mCreateUserFolderOnDrop) return false; 2716 mCreateUserFolderOnDrop = false; 2717 final long screenId = (targetCell == null) ? mDragInfo.screenId : getIdForScreen(target); 2718 2719 boolean aboveShortcut = (v.getTag() instanceof ShortcutInfo); 2720 boolean willBecomeShortcut = (newView.getTag() instanceof ShortcutInfo); 2721 2722 if (aboveShortcut && willBecomeShortcut) { 2723 ShortcutInfo sourceInfo = (ShortcutInfo) newView.getTag(); 2724 ShortcutInfo destInfo = (ShortcutInfo) v.getTag(); 2725 // if the drag started here, we need to remove it from the workspace 2726 if (!external) { 2727 getParentCellLayoutForView(mDragInfo.cell).removeView(mDragInfo.cell); 2728 } 2729 2730 Rect folderLocation = new Rect(); 2731 float scale = mLauncher.getDragLayer().getDescendantRectRelativeToSelf(v, folderLocation); 2732 target.removeView(v); 2733 2734 FolderIcon fi = 2735 mLauncher.addFolder(target, container, screenId, targetCell[0], targetCell[1]); 2736 destInfo.cellX = -1; 2737 destInfo.cellY = -1; 2738 sourceInfo.cellX = -1; 2739 sourceInfo.cellY = -1; 2740 2741 // If the dragView is null, we can't animate 2742 boolean animate = dragView != null; 2743 if (animate) { 2744 fi.performCreateAnimation(destInfo, v, sourceInfo, dragView, folderLocation, scale, 2745 postAnimationRunnable); 2746 } else { 2747 fi.addItem(destInfo); 2748 fi.addItem(sourceInfo); 2749 } 2750 return true; 2751 } 2752 return false; 2753 } 2754 2755 boolean addToExistingFolderIfNecessary(View newView, CellLayout target, int[] targetCell, 2756 float distance, DragObject d, boolean external) { 2757 if (distance > mMaxDistanceForFolderCreation) return false; 2758 2759 View dropOverView = target.getChildAt(targetCell[0], targetCell[1]); 2760 if (!mAddToExistingFolderOnDrop) return false; 2761 mAddToExistingFolderOnDrop = false; 2762 2763 if (dropOverView instanceof FolderIcon) { 2764 FolderIcon fi = (FolderIcon) dropOverView; 2765 if (fi.acceptDrop(d.dragInfo)) { 2766 fi.onDrop(d); 2767 2768 // if the drag started here, we need to remove it from the workspace 2769 if (!external) { 2770 getParentCellLayoutForView(mDragInfo.cell).removeView(mDragInfo.cell); 2771 } 2772 return true; 2773 } 2774 } 2775 return false; 2776 } 2777 2778 public void onDrop(final DragObject d) { 2779 mDragViewVisualCenter = getDragViewVisualCenter(d.x, d.y, d.xOffset, d.yOffset, d.dragView, 2780 mDragViewVisualCenter); 2781 2782 CellLayout dropTargetLayout = mDropToLayout; 2783 2784 // We want the point to be mapped to the dragTarget. 2785 if (dropTargetLayout != null) { 2786 if (mLauncher.isHotseatLayout(dropTargetLayout)) { 2787 mapPointFromSelfToHotseatLayout(mLauncher.getHotseat(), mDragViewVisualCenter); 2788 } else { 2789 mapPointFromSelfToChild(dropTargetLayout, mDragViewVisualCenter, null); 2790 } 2791 } 2792 2793 int snapScreen = -1; 2794 boolean resizeOnDrop = false; 2795 if (d.dragSource != this) { 2796 final int[] touchXY = new int[] { (int) mDragViewVisualCenter[0], 2797 (int) mDragViewVisualCenter[1] }; 2798 onDropExternal(touchXY, d.dragInfo, dropTargetLayout, false, d); 2799 } else if (mDragInfo != null) { 2800 final View cell = mDragInfo.cell; 2801 2802 Runnable resizeRunnable = null; 2803 if (dropTargetLayout != null && !d.cancelled) { 2804 // Move internally 2805 boolean hasMovedLayouts = (getParentCellLayoutForView(cell) != dropTargetLayout); 2806 boolean hasMovedIntoHotseat = mLauncher.isHotseatLayout(dropTargetLayout); 2807 long container = hasMovedIntoHotseat ? 2808 LauncherSettings.Favorites.CONTAINER_HOTSEAT : 2809 LauncherSettings.Favorites.CONTAINER_DESKTOP; 2810 long screenId = (mTargetCell[0] < 0) ? 2811 mDragInfo.screenId : getIdForScreen(dropTargetLayout); 2812 int spanX = mDragInfo != null ? mDragInfo.spanX : 1; 2813 int spanY = mDragInfo != null ? mDragInfo.spanY : 1; 2814 // First we find the cell nearest to point at which the item is 2815 // dropped, without any consideration to whether there is an item there. 2816 2817 mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], (int) 2818 mDragViewVisualCenter[1], spanX, spanY, dropTargetLayout, mTargetCell); 2819 float distance = dropTargetLayout.getDistanceFromCell(mDragViewVisualCenter[0], 2820 mDragViewVisualCenter[1], mTargetCell); 2821 2822 // If the item being dropped is a shortcut and the nearest drop 2823 // cell also contains a shortcut, then create a folder with the two shortcuts. 2824 if (!mInScrollArea && createUserFolderIfNecessary(cell, container, 2825 dropTargetLayout, mTargetCell, distance, false, d.dragView, null)) { 2826 removeExtraEmptyScreen(true, null, 0, true); 2827 return; 2828 } 2829 2830 if (addToExistingFolderIfNecessary(cell, dropTargetLayout, mTargetCell, 2831 distance, d, false)) { 2832 removeExtraEmptyScreen(true, null, 0, true); 2833 return; 2834 } 2835 2836 // Aside from the special case where we're dropping a shortcut onto a shortcut, 2837 // we need to find the nearest cell location that is vacant 2838 ItemInfo item = (ItemInfo) d.dragInfo; 2839 int minSpanX = item.spanX; 2840 int minSpanY = item.spanY; 2841 if (item.minSpanX > 0 && item.minSpanY > 0) { 2842 minSpanX = item.minSpanX; 2843 minSpanY = item.minSpanY; 2844 } 2845 2846 int[] resultSpan = new int[2]; 2847 mTargetCell = dropTargetLayout.createArea((int) mDragViewVisualCenter[0], 2848 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, spanX, spanY, cell, 2849 mTargetCell, resultSpan, CellLayout.MODE_ON_DROP); 2850 2851 boolean foundCell = mTargetCell[0] >= 0 && mTargetCell[1] >= 0; 2852 2853 // if the widget resizes on drop 2854 if (foundCell && (cell instanceof AppWidgetHostView) && 2855 (resultSpan[0] != item.spanX || resultSpan[1] != item.spanY)) { 2856 resizeOnDrop = true; 2857 item.spanX = resultSpan[0]; 2858 item.spanY = resultSpan[1]; 2859 AppWidgetHostView awhv = (AppWidgetHostView) cell; 2860 AppWidgetResizeFrame.updateWidgetSizeRanges(awhv, mLauncher, resultSpan[0], 2861 resultSpan[1]); 2862 } 2863 2864 if (getScreenIdForPageIndex(mCurrentPage) != screenId && !hasMovedIntoHotseat) { 2865 snapScreen = getPageIndexForScreenId(screenId); 2866 snapToPage(snapScreen); 2867 } 2868 2869 if (foundCell) { 2870 final ItemInfo info = (ItemInfo) cell.getTag(); 2871 if (hasMovedLayouts) { 2872 // Reparent the view 2873 getParentCellLayoutForView(cell).removeView(cell); 2874 addInScreen(cell, container, screenId, mTargetCell[0], mTargetCell[1], 2875 info.spanX, info.spanY); 2876 } 2877 2878 // update the item's position after drop 2879 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) cell.getLayoutParams(); 2880 lp.cellX = lp.tmpCellX = mTargetCell[0]; 2881 lp.cellY = lp.tmpCellY = mTargetCell[1]; 2882 lp.cellHSpan = item.spanX; 2883 lp.cellVSpan = item.spanY; 2884 lp.isLockedToGrid = true; 2885 cell.setId(LauncherModel.getCellLayoutChildId(container, mDragInfo.screenId, 2886 mTargetCell[0], mTargetCell[1], mDragInfo.spanX, mDragInfo.spanY)); 2887 2888 if (container != LauncherSettings.Favorites.CONTAINER_HOTSEAT && 2889 cell instanceof LauncherAppWidgetHostView) { 2890 final CellLayout cellLayout = dropTargetLayout; 2891 // We post this call so that the widget has a chance to be placed 2892 // in its final location 2893 2894 final LauncherAppWidgetHostView hostView = (LauncherAppWidgetHostView) cell; 2895 AppWidgetProviderInfo pinfo = hostView.getAppWidgetInfo(); 2896 if (pinfo != null && 2897 pinfo.resizeMode != AppWidgetProviderInfo.RESIZE_NONE) { 2898 final Runnable addResizeFrame = new Runnable() { 2899 public void run() { 2900 DragLayer dragLayer = mLauncher.getDragLayer(); 2901 dragLayer.addResizeFrame(info, hostView, cellLayout); 2902 } 2903 }; 2904 resizeRunnable = (new Runnable() { 2905 public void run() { 2906 if (!isPageMoving()) { 2907 addResizeFrame.run(); 2908 } else { 2909 mDelayedResizeRunnable = addResizeFrame; 2910 } 2911 } 2912 }); 2913 } 2914 } 2915 2916 LauncherModel.modifyItemInDatabase(mLauncher, info, container, screenId, lp.cellX, 2917 lp.cellY, item.spanX, item.spanY); 2918 } else { 2919 // If we can't find a drop location, we return the item to its original position 2920 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) cell.getLayoutParams(); 2921 mTargetCell[0] = lp.cellX; 2922 mTargetCell[1] = lp.cellY; 2923 CellLayout layout = (CellLayout) cell.getParent().getParent(); 2924 layout.markCellsAsOccupiedForView(cell); 2925 } 2926 } 2927 2928 final CellLayout parent = (CellLayout) cell.getParent().getParent(); 2929 final Runnable finalResizeRunnable = resizeRunnable; 2930 // Prepare it to be animated into its new position 2931 // This must be called after the view has been re-parented 2932 final Runnable onCompleteRunnable = new Runnable() { 2933 @Override 2934 public void run() { 2935 mAnimatingViewIntoPlace = false; 2936 updateChildrenLayersEnabled(false); 2937 if (finalResizeRunnable != null) { 2938 finalResizeRunnable.run(); 2939 } 2940 removeExtraEmptyScreen(true, null, 0, true); 2941 } 2942 }; 2943 mAnimatingViewIntoPlace = true; 2944 if (d.dragView.hasDrawn()) { 2945 final ItemInfo info = (ItemInfo) cell.getTag(); 2946 if (info.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET) { 2947 int animationType = resizeOnDrop ? ANIMATE_INTO_POSITION_AND_RESIZE : 2948 ANIMATE_INTO_POSITION_AND_DISAPPEAR; 2949 animateWidgetDrop(info, parent, d.dragView, 2950 onCompleteRunnable, animationType, cell, false); 2951 } else { 2952 int duration = snapScreen < 0 ? -1 : ADJACENT_SCREEN_DROP_DURATION; 2953 mLauncher.getDragLayer().animateViewIntoPosition(d.dragView, cell, duration, 2954 onCompleteRunnable, this); 2955 } 2956 } else { 2957 d.deferDragViewCleanupPostAnimation = false; 2958 cell.setVisibility(VISIBLE); 2959 } 2960 parent.onDropChild(cell); 2961 } 2962 } 2963 2964 public void setFinalScrollForPageChange(int pageIndex) { 2965 CellLayout cl = (CellLayout) getChildAt(pageIndex); 2966 if (cl != null) { 2967 mSavedScrollX = getScrollX(); 2968 mSavedTranslationX = cl.getTranslationX(); 2969 mSavedRotationY = cl.getRotationY(); 2970 final int newX = getScrollForPage(pageIndex); 2971 setScrollX(newX); 2972 cl.setTranslationX(0f); 2973 cl.setRotationY(0f); 2974 } 2975 } 2976 2977 public void resetFinalScrollForPageChange(int pageIndex) { 2978 if (pageIndex >= 0) { 2979 CellLayout cl = (CellLayout) getChildAt(pageIndex); 2980 setScrollX(mSavedScrollX); 2981 cl.setTranslationX(mSavedTranslationX); 2982 cl.setRotationY(mSavedRotationY); 2983 } 2984 } 2985 2986 public void getViewLocationRelativeToSelf(View v, int[] location) { 2987 getLocationInWindow(location); 2988 int x = location[0]; 2989 int y = location[1]; 2990 2991 v.getLocationInWindow(location); 2992 int vX = location[0]; 2993 int vY = location[1]; 2994 2995 location[0] = vX - x; 2996 location[1] = vY - y; 2997 } 2998 2999 public void onDragEnter(DragObject d) { 3000 mDragEnforcer.onDragEnter(); 3001 mCreateUserFolderOnDrop = false; 3002 mAddToExistingFolderOnDrop = false; 3003 3004 mDropToLayout = null; 3005 CellLayout layout = getCurrentDropLayout(); 3006 setCurrentDropLayout(layout); 3007 setCurrentDragOverlappingLayout(layout); 3008 3009 // Because we don't have space in the Phone UI (the CellLayouts run to the edge) we 3010 // don't need to show the outlines 3011 if (LauncherAppState.getInstance().isScreenLarge()) { 3012 showOutlines(); 3013 } 3014 } 3015 3016 /** Return a rect that has the cellWidth/cellHeight (left, top), and 3017 * widthGap/heightGap (right, bottom) */ 3018 static Rect getCellLayoutMetrics(Launcher launcher, int orientation) { 3019 LauncherAppState app = LauncherAppState.getInstance(); 3020 DeviceProfile grid = app.getDynamicGrid().getDeviceProfile(); 3021 3022 Resources res = launcher.getResources(); 3023 Display display = launcher.getWindowManager().getDefaultDisplay(); 3024 Point smallestSize = new Point(); 3025 Point largestSize = new Point(); 3026 display.getCurrentSizeRange(smallestSize, largestSize); 3027 int countX = (int) grid.numColumns; 3028 int countY = (int) grid.numRows; 3029 int constrainedLongEdge = largestSize.y; 3030 int constrainedShortEdge = smallestSize.y; 3031 if (orientation == CellLayout.LANDSCAPE) { 3032 if (mLandscapeCellLayoutMetrics == null) { 3033 Rect padding = grid.getWorkspacePadding(CellLayout.LANDSCAPE); 3034 int width = constrainedLongEdge - padding.left - padding.right; 3035 int height = constrainedShortEdge - padding.top - padding.bottom; 3036 mLandscapeCellLayoutMetrics = new Rect(); 3037 mLandscapeCellLayoutMetrics.set( 3038 grid.calculateCellWidth(width, countX), 3039 grid.calculateCellHeight(height, countY), 0, 0); 3040 } 3041 return mLandscapeCellLayoutMetrics; 3042 } else if (orientation == CellLayout.PORTRAIT) { 3043 if (mPortraitCellLayoutMetrics == null) { 3044 Rect padding = grid.getWorkspacePadding(CellLayout.PORTRAIT); 3045 int width = constrainedShortEdge - padding.left - padding.right; 3046 int height = constrainedLongEdge - padding.top - padding.bottom; 3047 mPortraitCellLayoutMetrics = new Rect(); 3048 mPortraitCellLayoutMetrics.set( 3049 grid.calculateCellWidth(width, countX), 3050 grid.calculateCellHeight(height, countY), 0, 0); 3051 } 3052 return mPortraitCellLayoutMetrics; 3053 } 3054 return null; 3055 } 3056 3057 public void onDragExit(DragObject d) { 3058 mDragEnforcer.onDragExit(); 3059 3060 // Here we store the final page that will be dropped to, if the workspace in fact 3061 // receives the drop 3062 if (mInScrollArea) { 3063 if (isPageMoving()) { 3064 // If the user drops while the page is scrolling, we should use that page as the 3065 // destination instead of the page that is being hovered over. 3066 mDropToLayout = (CellLayout) getPageAt(getNextPage()); 3067 } else { 3068 mDropToLayout = mDragOverlappingLayout; 3069 } 3070 } else { 3071 mDropToLayout = mDragTargetLayout; 3072 } 3073 3074 if (mDragMode == DRAG_MODE_CREATE_FOLDER) { 3075 mCreateUserFolderOnDrop = true; 3076 } else if (mDragMode == DRAG_MODE_ADD_TO_FOLDER) { 3077 mAddToExistingFolderOnDrop = true; 3078 } 3079 3080 // Reset the scroll area and previous drag target 3081 onResetScrollArea(); 3082 setCurrentDropLayout(null); 3083 setCurrentDragOverlappingLayout(null); 3084 3085 mSpringLoadedDragController.cancel(); 3086 3087 if (!mIsPageMoving) { 3088 hideOutlines(); 3089 } 3090 } 3091 3092 void setCurrentDropLayout(CellLayout layout) { 3093 if (mDragTargetLayout != null) { 3094 mDragTargetLayout.revertTempState(); 3095 mDragTargetLayout.onDragExit(); 3096 } 3097 mDragTargetLayout = layout; 3098 if (mDragTargetLayout != null) { 3099 mDragTargetLayout.onDragEnter(); 3100 } 3101 cleanupReorder(true); 3102 cleanupFolderCreation(); 3103 setCurrentDropOverCell(-1, -1); 3104 } 3105 3106 void setCurrentDragOverlappingLayout(CellLayout layout) { 3107 if (mDragOverlappingLayout != null) { 3108 mDragOverlappingLayout.setIsDragOverlapping(false); 3109 } 3110 mDragOverlappingLayout = layout; 3111 if (mDragOverlappingLayout != null) { 3112 mDragOverlappingLayout.setIsDragOverlapping(true); 3113 } 3114 invalidate(); 3115 } 3116 3117 void setCurrentDropOverCell(int x, int y) { 3118 if (x != mDragOverX || y != mDragOverY) { 3119 mDragOverX = x; 3120 mDragOverY = y; 3121 setDragMode(DRAG_MODE_NONE); 3122 } 3123 } 3124 3125 void setDragMode(int dragMode) { 3126 if (dragMode != mDragMode) { 3127 if (dragMode == DRAG_MODE_NONE) { 3128 cleanupAddToFolder(); 3129 // We don't want to cancel the re-order alarm every time the target cell changes 3130 // as this feels to slow / unresponsive. 3131 cleanupReorder(false); 3132 cleanupFolderCreation(); 3133 } else if (dragMode == DRAG_MODE_ADD_TO_FOLDER) { 3134 cleanupReorder(true); 3135 cleanupFolderCreation(); 3136 } else if (dragMode == DRAG_MODE_CREATE_FOLDER) { 3137 cleanupAddToFolder(); 3138 cleanupReorder(true); 3139 } else if (dragMode == DRAG_MODE_REORDER) { 3140 cleanupAddToFolder(); 3141 cleanupFolderCreation(); 3142 } 3143 mDragMode = dragMode; 3144 } 3145 } 3146 3147 private void cleanupFolderCreation() { 3148 if (mDragFolderRingAnimator != null) { 3149 mDragFolderRingAnimator.animateToNaturalState(); 3150 mDragFolderRingAnimator = null; 3151 } 3152 mFolderCreationAlarm.setOnAlarmListener(null); 3153 mFolderCreationAlarm.cancelAlarm(); 3154 } 3155 3156 private void cleanupAddToFolder() { 3157 if (mDragOverFolderIcon != null) { 3158 mDragOverFolderIcon.onDragExit(null); 3159 mDragOverFolderIcon = null; 3160 } 3161 } 3162 3163 private void cleanupReorder(boolean cancelAlarm) { 3164 // Any pending reorders are canceled 3165 if (cancelAlarm) { 3166 mReorderAlarm.cancelAlarm(); 3167 } 3168 mLastReorderX = -1; 3169 mLastReorderY = -1; 3170 } 3171 3172 /* 3173 * 3174 * Convert the 2D coordinate xy from the parent View's coordinate space to this CellLayout's 3175 * coordinate space. The argument xy is modified with the return result. 3176 * 3177 * if cachedInverseMatrix is not null, this method will just use that matrix instead of 3178 * computing it itself; we use this to avoid redundant matrix inversions in 3179 * findMatchingPageForDragOver 3180 * 3181 */ 3182 void mapPointFromSelfToChild(View v, float[] xy, Matrix cachedInverseMatrix) { 3183 xy[0] = xy[0] - v.getLeft(); 3184 xy[1] = xy[1] - v.getTop(); 3185 } 3186 3187 boolean isPointInSelfOverHotseat(int x, int y, Rect r) { 3188 if (r == null) { 3189 r = new Rect(); 3190 } 3191 mTempPt[0] = x; 3192 mTempPt[1] = y; 3193 mLauncher.getDragLayer().getDescendantCoordRelativeToSelf(this, mTempPt, true); 3194 3195 LauncherAppState app = LauncherAppState.getInstance(); 3196 DeviceProfile grid = app.getDynamicGrid().getDeviceProfile(); 3197 r = grid.getHotseatRect(); 3198 if (r.contains(mTempPt[0], mTempPt[1])) { 3199 return true; 3200 } 3201 return false; 3202 } 3203 3204 void mapPointFromSelfToHotseatLayout(Hotseat hotseat, float[] xy) { 3205 mTempPt[0] = (int) xy[0]; 3206 mTempPt[1] = (int) xy[1]; 3207 mLauncher.getDragLayer().getDescendantCoordRelativeToSelf(this, mTempPt, true); 3208 mLauncher.getDragLayer().mapCoordInSelfToDescendent(hotseat.getLayout(), mTempPt); 3209 3210 xy[0] = mTempPt[0]; 3211 xy[1] = mTempPt[1]; 3212 } 3213 3214 /* 3215 * 3216 * Convert the 2D coordinate xy from this CellLayout's coordinate space to 3217 * the parent View's coordinate space. The argument xy is modified with the return result. 3218 * 3219 */ 3220 void mapPointFromChildToSelf(View v, float[] xy) { 3221 xy[0] += v.getLeft(); 3222 xy[1] += v.getTop(); 3223 } 3224 3225 static private float squaredDistance(float[] point1, float[] point2) { 3226 float distanceX = point1[0] - point2[0]; 3227 float distanceY = point2[1] - point2[1]; 3228 return distanceX * distanceX + distanceY * distanceY; 3229 } 3230 3231 /* 3232 * 3233 * This method returns the CellLayout that is currently being dragged to. In order to drag 3234 * to a CellLayout, either the touch point must be directly over the CellLayout, or as a second 3235 * strategy, we see if the dragView is overlapping any CellLayout and choose the closest one 3236 * 3237 * Return null if no CellLayout is currently being dragged over 3238 * 3239 */ 3240 private CellLayout findMatchingPageForDragOver( 3241 DragView dragView, float originX, float originY, boolean exact) { 3242 // We loop through all the screens (ie CellLayouts) and see which ones overlap 3243 // with the item being dragged and then choose the one that's closest to the touch point 3244 final int screenCount = getChildCount(); 3245 CellLayout bestMatchingScreen = null; 3246 float smallestDistSoFar = Float.MAX_VALUE; 3247 3248 for (int i = 0; i < screenCount; i++) { 3249 // The custom content screen is not a valid drag over option 3250 if (mScreenOrder.get(i) == CUSTOM_CONTENT_SCREEN_ID) { 3251 continue; 3252 } 3253 3254 CellLayout cl = (CellLayout) getChildAt(i); 3255 3256 final float[] touchXy = {originX, originY}; 3257 // Transform the touch coordinates to the CellLayout's local coordinates 3258 // If the touch point is within the bounds of the cell layout, we can return immediately 3259 cl.getMatrix().invert(mTempInverseMatrix); 3260 mapPointFromSelfToChild(cl, touchXy, mTempInverseMatrix); 3261 3262 if (touchXy[0] >= 0 && touchXy[0] <= cl.getWidth() && 3263 touchXy[1] >= 0 && touchXy[1] <= cl.getHeight()) { 3264 return cl; 3265 } 3266 3267 if (!exact) { 3268 // Get the center of the cell layout in screen coordinates 3269 final float[] cellLayoutCenter = mTempCellLayoutCenterCoordinates; 3270 cellLayoutCenter[0] = cl.getWidth()/2; 3271 cellLayoutCenter[1] = cl.getHeight()/2; 3272 mapPointFromChildToSelf(cl, cellLayoutCenter); 3273 3274 touchXy[0] = originX; 3275 touchXy[1] = originY; 3276 3277 // Calculate the distance between the center of the CellLayout 3278 // and the touch point 3279 float dist = squaredDistance(touchXy, cellLayoutCenter); 3280 3281 if (dist < smallestDistSoFar) { 3282 smallestDistSoFar = dist; 3283 bestMatchingScreen = cl; 3284 } 3285 } 3286 } 3287 return bestMatchingScreen; 3288 } 3289 3290 // This is used to compute the visual center of the dragView. This point is then 3291 // used to visualize drop locations and determine where to drop an item. The idea is that 3292 // the visual center represents the user's interpretation of where the item is, and hence 3293 // is the appropriate point to use when determining drop location. 3294 private float[] getDragViewVisualCenter(int x, int y, int xOffset, int yOffset, 3295 DragView dragView, float[] recycle) { 3296 float res[]; 3297 if (recycle == null) { 3298 res = new float[2]; 3299 } else { 3300 res = recycle; 3301 } 3302 3303 // First off, the drag view has been shifted in a way that is not represented in the 3304 // x and y values or the x/yOffsets. Here we account for that shift. 3305 x += getResources().getDimensionPixelSize(R.dimen.dragViewOffsetX); 3306 y += getResources().getDimensionPixelSize(R.dimen.dragViewOffsetY); 3307 3308 // These represent the visual top and left of drag view if a dragRect was provided. 3309 // If a dragRect was not provided, then they correspond to the actual view left and 3310 // top, as the dragRect is in that case taken to be the entire dragView. 3311 // R.dimen.dragViewOffsetY. 3312 int left = x - xOffset; 3313 int top = y - yOffset; 3314 3315 // In order to find the visual center, we shift by half the dragRect 3316 res[0] = left + dragView.getDragRegion().width() / 2; 3317 res[1] = top + dragView.getDragRegion().height() / 2; 3318 3319 return res; 3320 } 3321 3322 private boolean isDragWidget(DragObject d) { 3323 return (d.dragInfo instanceof LauncherAppWidgetInfo || 3324 d.dragInfo instanceof PendingAddWidgetInfo); 3325 } 3326 private boolean isExternalDragWidget(DragObject d) { 3327 return d.dragSource != this && isDragWidget(d); 3328 } 3329 3330 public void onDragOver(DragObject d) { 3331 // Skip drag over events while we are dragging over side pages 3332 if (mInScrollArea || mIsSwitchingState || mState == State.SMALL) return; 3333 3334 Rect r = new Rect(); 3335 CellLayout layout = null; 3336 ItemInfo item = (ItemInfo) d.dragInfo; 3337 3338 // Ensure that we have proper spans for the item that we are dropping 3339 if (item.spanX < 0 || item.spanY < 0) throw new RuntimeException("Improper spans found"); 3340 mDragViewVisualCenter = getDragViewVisualCenter(d.x, d.y, d.xOffset, d.yOffset, 3341 d.dragView, mDragViewVisualCenter); 3342 3343 final View child = (mDragInfo == null) ? null : mDragInfo.cell; 3344 // Identify whether we have dragged over a side page 3345 if (isSmall()) { 3346 if (mLauncher.getHotseat() != null && !isExternalDragWidget(d)) { 3347 if (isPointInSelfOverHotseat(d.x, d.y, r)) { 3348 layout = mLauncher.getHotseat().getLayout(); 3349 } 3350 } 3351 if (layout == null) { 3352 layout = findMatchingPageForDragOver(d.dragView, d.x, d.y, false); 3353 } 3354 if (layout != mDragTargetLayout) { 3355 setCurrentDropLayout(layout); 3356 setCurrentDragOverlappingLayout(layout); 3357 3358 boolean isInSpringLoadedMode = (mState == State.SPRING_LOADED); 3359 if (isInSpringLoadedMode) { 3360 if (mLauncher.isHotseatLayout(layout)) { 3361 mSpringLoadedDragController.cancel(); 3362 } else { 3363 mSpringLoadedDragController.setAlarm(mDragTargetLayout); 3364 } 3365 } 3366 } 3367 } else { 3368 // Test to see if we are over the hotseat otherwise just use the current page 3369 if (mLauncher.getHotseat() != null && !isDragWidget(d)) { 3370 if (isPointInSelfOverHotseat(d.x, d.y, r)) { 3371 layout = mLauncher.getHotseat().getLayout(); 3372 } 3373 } 3374 if (layout == null) { 3375 layout = getCurrentDropLayout(); 3376 } 3377 if (layout != mDragTargetLayout) { 3378 setCurrentDropLayout(layout); 3379 setCurrentDragOverlappingLayout(layout); 3380 } 3381 } 3382 3383 // Handle the drag over 3384 if (mDragTargetLayout != null) { 3385 // We want the point to be mapped to the dragTarget. 3386 if (mLauncher.isHotseatLayout(mDragTargetLayout)) { 3387 mapPointFromSelfToHotseatLayout(mLauncher.getHotseat(), mDragViewVisualCenter); 3388 } else { 3389 mapPointFromSelfToChild(mDragTargetLayout, mDragViewVisualCenter, null); 3390 } 3391 3392 ItemInfo info = (ItemInfo) d.dragInfo; 3393 3394 int minSpanX = item.spanX; 3395 int minSpanY = item.spanY; 3396 if (item.minSpanX > 0 && item.minSpanY > 0) { 3397 minSpanX = item.minSpanX; 3398 minSpanY = item.minSpanY; 3399 } 3400 3401 mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], 3402 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, 3403 mDragTargetLayout, mTargetCell); 3404 int reorderX = mTargetCell[0]; 3405 int reorderY = mTargetCell[1]; 3406 3407 setCurrentDropOverCell(mTargetCell[0], mTargetCell[1]); 3408 3409 float targetCellDistance = mDragTargetLayout.getDistanceFromCell( 3410 mDragViewVisualCenter[0], mDragViewVisualCenter[1], mTargetCell); 3411 3412 final View dragOverView = mDragTargetLayout.getChildAt(mTargetCell[0], 3413 mTargetCell[1]); 3414 3415 manageFolderFeedback(info, mDragTargetLayout, mTargetCell, 3416 targetCellDistance, dragOverView); 3417 3418 boolean nearestDropOccupied = mDragTargetLayout.isNearestDropLocationOccupied((int) 3419 mDragViewVisualCenter[0], (int) mDragViewVisualCenter[1], item.spanX, 3420 item.spanY, child, mTargetCell); 3421 3422 if (!nearestDropOccupied) { 3423 mDragTargetLayout.visualizeDropLocation(child, mDragOutline, 3424 (int) mDragViewVisualCenter[0], (int) mDragViewVisualCenter[1], 3425 mTargetCell[0], mTargetCell[1], item.spanX, item.spanY, false, 3426 d.dragView.getDragVisualizeOffset(), d.dragView.getDragRegion()); 3427 } else if ((mDragMode == DRAG_MODE_NONE || mDragMode == DRAG_MODE_REORDER) 3428 && !mReorderAlarm.alarmPending() && (mLastReorderX != reorderX || 3429 mLastReorderY != reorderY)) { 3430 3431 // Otherwise, if we aren't adding to or creating a folder and there's no pending 3432 // reorder, then we schedule a reorder 3433 ReorderAlarmListener listener = new ReorderAlarmListener(mDragViewVisualCenter, 3434 minSpanX, minSpanY, item.spanX, item.spanY, d.dragView, child); 3435 mReorderAlarm.setOnAlarmListener(listener); 3436 mReorderAlarm.setAlarm(REORDER_TIMEOUT); 3437 } 3438 3439 if (mDragMode == DRAG_MODE_CREATE_FOLDER || mDragMode == DRAG_MODE_ADD_TO_FOLDER || 3440 !nearestDropOccupied) { 3441 if (mDragTargetLayout != null) { 3442 mDragTargetLayout.revertTempState(); 3443 } 3444 } 3445 } 3446 } 3447 3448 private void manageFolderFeedback(ItemInfo info, CellLayout targetLayout, 3449 int[] targetCell, float distance, View dragOverView) { 3450 boolean userFolderPending = willCreateUserFolder(info, targetLayout, targetCell, distance, 3451 false); 3452 3453 if (mDragMode == DRAG_MODE_NONE && userFolderPending && 3454 !mFolderCreationAlarm.alarmPending()) { 3455 mFolderCreationAlarm.setOnAlarmListener(new 3456 FolderCreationAlarmListener(targetLayout, targetCell[0], targetCell[1])); 3457 mFolderCreationAlarm.setAlarm(FOLDER_CREATION_TIMEOUT); 3458 return; 3459 } 3460 3461 boolean willAddToFolder = 3462 willAddToExistingUserFolder(info, targetLayout, targetCell, distance); 3463 3464 if (willAddToFolder && mDragMode == DRAG_MODE_NONE) { 3465 mDragOverFolderIcon = ((FolderIcon) dragOverView); 3466 mDragOverFolderIcon.onDragEnter(info); 3467 if (targetLayout != null) { 3468 targetLayout.clearDragOutlines(); 3469 } 3470 setDragMode(DRAG_MODE_ADD_TO_FOLDER); 3471 return; 3472 } 3473 3474 if (mDragMode == DRAG_MODE_ADD_TO_FOLDER && !willAddToFolder) { 3475 setDragMode(DRAG_MODE_NONE); 3476 } 3477 if (mDragMode == DRAG_MODE_CREATE_FOLDER && !userFolderPending) { 3478 setDragMode(DRAG_MODE_NONE); 3479 } 3480 3481 return; 3482 } 3483 3484 class FolderCreationAlarmListener implements OnAlarmListener { 3485 CellLayout layout; 3486 int cellX; 3487 int cellY; 3488 3489 public FolderCreationAlarmListener(CellLayout layout, int cellX, int cellY) { 3490 this.layout = layout; 3491 this.cellX = cellX; 3492 this.cellY = cellY; 3493 } 3494 3495 public void onAlarm(Alarm alarm) { 3496 if (mDragFolderRingAnimator != null) { 3497 // This shouldn't happen ever, but just in case, make sure we clean up the mess. 3498 mDragFolderRingAnimator.animateToNaturalState(); 3499 } 3500 mDragFolderRingAnimator = new FolderRingAnimator(mLauncher, null); 3501 mDragFolderRingAnimator.setCell(cellX, cellY); 3502 mDragFolderRingAnimator.setCellLayout(layout); 3503 mDragFolderRingAnimator.animateToAcceptState(); 3504 layout.showFolderAccept(mDragFolderRingAnimator); 3505 layout.clearDragOutlines(); 3506 setDragMode(DRAG_MODE_CREATE_FOLDER); 3507 } 3508 } 3509 3510 class ReorderAlarmListener implements OnAlarmListener { 3511 float[] dragViewCenter; 3512 int minSpanX, minSpanY, spanX, spanY; 3513 DragView dragView; 3514 View child; 3515 3516 public ReorderAlarmListener(float[] dragViewCenter, int minSpanX, int minSpanY, int spanX, 3517 int spanY, DragView dragView, View child) { 3518 this.dragViewCenter = dragViewCenter; 3519 this.minSpanX = minSpanX; 3520 this.minSpanY = minSpanY; 3521 this.spanX = spanX; 3522 this.spanY = spanY; 3523 this.child = child; 3524 this.dragView = dragView; 3525 } 3526 3527 public void onAlarm(Alarm alarm) { 3528 int[] resultSpan = new int[2]; 3529 mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], 3530 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, mDragTargetLayout, 3531 mTargetCell); 3532 mLastReorderX = mTargetCell[0]; 3533 mLastReorderY = mTargetCell[1]; 3534 3535 mTargetCell = mDragTargetLayout.createArea((int) mDragViewVisualCenter[0], 3536 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, spanX, spanY, 3537 child, mTargetCell, resultSpan, CellLayout.MODE_DRAG_OVER); 3538 3539 if (mTargetCell[0] < 0 || mTargetCell[1] < 0) { 3540 mDragTargetLayout.revertTempState(); 3541 } else { 3542 setDragMode(DRAG_MODE_REORDER); 3543 } 3544 3545 boolean resize = resultSpan[0] != spanX || resultSpan[1] != spanY; 3546 mDragTargetLayout.visualizeDropLocation(child, mDragOutline, 3547 (int) mDragViewVisualCenter[0], (int) mDragViewVisualCenter[1], 3548 mTargetCell[0], mTargetCell[1], resultSpan[0], resultSpan[1], resize, 3549 dragView.getDragVisualizeOffset(), dragView.getDragRegion()); 3550 } 3551 } 3552 3553 @Override 3554 public void getHitRectRelativeToDragLayer(Rect outRect) { 3555 // We want the workspace to have the whole area of the display (it will find the correct 3556 // cell layout to drop to in the existing drag/drop logic. 3557 mLauncher.getDragLayer().getDescendantRectRelativeToSelf(this, outRect); 3558 } 3559 3560 /** 3561 * Add the item specified by dragInfo to the given layout. 3562 * @return true if successful 3563 */ 3564 public boolean addExternalItemToScreen(ItemInfo dragInfo, CellLayout layout) { 3565 if (layout.findCellForSpan(mTempEstimate, dragInfo.spanX, dragInfo.spanY)) { 3566 onDropExternal(dragInfo.dropPos, (ItemInfo) dragInfo, (CellLayout) layout, false); 3567 return true; 3568 } 3569 mLauncher.showOutOfSpaceMessage(mLauncher.isHotseatLayout(layout)); 3570 return false; 3571 } 3572 3573 private void onDropExternal(int[] touchXY, Object dragInfo, 3574 CellLayout cellLayout, boolean insertAtFirst) { 3575 onDropExternal(touchXY, dragInfo, cellLayout, insertAtFirst, null); 3576 } 3577 3578 /** 3579 * Drop an item that didn't originate on one of the workspace screens. 3580 * It may have come from Launcher (e.g. from all apps or customize), or it may have 3581 * come from another app altogether. 3582 * 3583 * NOTE: This can also be called when we are outside of a drag event, when we want 3584 * to add an item to one of the workspace screens. 3585 */ 3586 private void onDropExternal(final int[] touchXY, final Object dragInfo, 3587 final CellLayout cellLayout, boolean insertAtFirst, DragObject d) { 3588 final Runnable exitSpringLoadedRunnable = new Runnable() { 3589 @Override 3590 public void run() { 3591 removeExtraEmptyScreen(false, new Runnable() { 3592 @Override 3593 public void run() { 3594 mLauncher.exitSpringLoadedDragModeDelayed(true, 3595 Launcher.EXIT_SPRINGLOADED_MODE_SHORT_TIMEOUT, null); 3596 } 3597 }); 3598 } 3599 }; 3600 3601 ItemInfo info = (ItemInfo) dragInfo; 3602 int spanX = info.spanX; 3603 int spanY = info.spanY; 3604 if (mDragInfo != null) { 3605 spanX = mDragInfo.spanX; 3606 spanY = mDragInfo.spanY; 3607 } 3608 3609 final long container = mLauncher.isHotseatLayout(cellLayout) ? 3610 LauncherSettings.Favorites.CONTAINER_HOTSEAT : 3611 LauncherSettings.Favorites.CONTAINER_DESKTOP; 3612 final long screenId = getIdForScreen(cellLayout); 3613 if (!mLauncher.isHotseatLayout(cellLayout) 3614 && screenId != getScreenIdForPageIndex(mCurrentPage) 3615 && mState != State.SPRING_LOADED) { 3616 snapToScreenId(screenId, null); 3617 } 3618 3619 if (info instanceof PendingAddItemInfo) { 3620 final PendingAddItemInfo pendingInfo = (PendingAddItemInfo) dragInfo; 3621 3622 boolean findNearestVacantCell = true; 3623 if (pendingInfo.itemType == LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT) { 3624 mTargetCell = findNearestArea((int) touchXY[0], (int) touchXY[1], spanX, spanY, 3625 cellLayout, mTargetCell); 3626 float distance = cellLayout.getDistanceFromCell(mDragViewVisualCenter[0], 3627 mDragViewVisualCenter[1], mTargetCell); 3628 if (willCreateUserFolder((ItemInfo) d.dragInfo, cellLayout, mTargetCell, 3629 distance, true) || willAddToExistingUserFolder((ItemInfo) d.dragInfo, 3630 cellLayout, mTargetCell, distance)) { 3631 findNearestVacantCell = false; 3632 } 3633 } 3634 3635 final ItemInfo item = (ItemInfo) d.dragInfo; 3636 boolean updateWidgetSize = false; 3637 if (findNearestVacantCell) { 3638 int minSpanX = item.spanX; 3639 int minSpanY = item.spanY; 3640 if (item.minSpanX > 0 && item.minSpanY > 0) { 3641 minSpanX = item.minSpanX; 3642 minSpanY = item.minSpanY; 3643 } 3644 int[] resultSpan = new int[2]; 3645 mTargetCell = cellLayout.createArea((int) mDragViewVisualCenter[0], 3646 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, info.spanX, info.spanY, 3647 null, mTargetCell, resultSpan, CellLayout.MODE_ON_DROP_EXTERNAL); 3648 3649 if (resultSpan[0] != item.spanX || resultSpan[1] != item.spanY) { 3650 updateWidgetSize = true; 3651 } 3652 item.spanX = resultSpan[0]; 3653 item.spanY = resultSpan[1]; 3654 } 3655 3656 Runnable onAnimationCompleteRunnable = new Runnable() { 3657 @Override 3658 public void run() { 3659 // When dragging and dropping from customization tray, we deal with creating 3660 // widgets/shortcuts/folders in a slightly different way 3661 switch (pendingInfo.itemType) { 3662 case LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET: 3663 int span[] = new int[2]; 3664 span[0] = item.spanX; 3665 span[1] = item.spanY; 3666 mLauncher.addAppWidgetFromDrop((PendingAddWidgetInfo) pendingInfo, 3667 container, screenId, mTargetCell, span, null); 3668 break; 3669 case LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT: 3670 mLauncher.processShortcutFromDrop(pendingInfo.componentName, 3671 container, screenId, mTargetCell, null); 3672 break; 3673 default: 3674 throw new IllegalStateException("Unknown item type: " + 3675 pendingInfo.itemType); 3676 } 3677 } 3678 }; 3679 View finalView = pendingInfo.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET 3680 ? ((PendingAddWidgetInfo) pendingInfo).boundWidget : null; 3681 3682 if (finalView instanceof AppWidgetHostView && updateWidgetSize) { 3683 AppWidgetHostView awhv = (AppWidgetHostView) finalView; 3684 AppWidgetResizeFrame.updateWidgetSizeRanges(awhv, mLauncher, item.spanX, 3685 item.spanY); 3686 } 3687 3688 int animationStyle = ANIMATE_INTO_POSITION_AND_DISAPPEAR; 3689 if (pendingInfo.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET && 3690 ((PendingAddWidgetInfo) pendingInfo).info.configure != null) { 3691 animationStyle = ANIMATE_INTO_POSITION_AND_REMAIN; 3692 } 3693 animateWidgetDrop(info, cellLayout, d.dragView, onAnimationCompleteRunnable, 3694 animationStyle, finalView, true); 3695 } else { 3696 // This is for other drag/drop cases, like dragging from All Apps 3697 View view = null; 3698 3699 switch (info.itemType) { 3700 case LauncherSettings.Favorites.ITEM_TYPE_APPLICATION: 3701 case LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT: 3702 if (info.container == NO_ID && info instanceof AppInfo) { 3703 // Came from all apps -- make a copy 3704 info = new ShortcutInfo((AppInfo) info); 3705 } 3706 view = mLauncher.createShortcut(R.layout.application, cellLayout, 3707 (ShortcutInfo) info); 3708 break; 3709 case LauncherSettings.Favorites.ITEM_TYPE_FOLDER: 3710 view = FolderIcon.fromXml(R.layout.folder_icon, mLauncher, cellLayout, 3711 (FolderInfo) info, mIconCache); 3712 break; 3713 default: 3714 throw new IllegalStateException("Unknown item type: " + info.itemType); 3715 } 3716 3717 // First we find the cell nearest to point at which the item is 3718 // dropped, without any consideration to whether there is an item there. 3719 if (touchXY != null) { 3720 mTargetCell = findNearestArea((int) touchXY[0], (int) touchXY[1], spanX, spanY, 3721 cellLayout, mTargetCell); 3722 float distance = cellLayout.getDistanceFromCell(mDragViewVisualCenter[0], 3723 mDragViewVisualCenter[1], mTargetCell); 3724 d.postAnimationRunnable = exitSpringLoadedRunnable; 3725 if (createUserFolderIfNecessary(view, container, cellLayout, mTargetCell, distance, 3726 true, d.dragView, d.postAnimationRunnable)) { 3727 return; 3728 } 3729 if (addToExistingFolderIfNecessary(view, cellLayout, mTargetCell, distance, d, 3730 true)) { 3731 return; 3732 } 3733 } 3734 3735 if (touchXY != null) { 3736 // when dragging and dropping, just find the closest free spot 3737 mTargetCell = cellLayout.createArea((int) mDragViewVisualCenter[0], 3738 (int) mDragViewVisualCenter[1], 1, 1, 1, 1, 3739 null, mTargetCell, null, CellLayout.MODE_ON_DROP_EXTERNAL); 3740 } else { 3741 cellLayout.findCellForSpan(mTargetCell, 1, 1); 3742 } 3743 addInScreen(view, container, screenId, mTargetCell[0], mTargetCell[1], info.spanX, 3744 info.spanY, insertAtFirst); 3745 cellLayout.onDropChild(view); 3746 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) view.getLayoutParams(); 3747 cellLayout.getShortcutsAndWidgets().measureChild(view); 3748 3749 LauncherModel.addOrMoveItemInDatabase(mLauncher, info, container, screenId, 3750 lp.cellX, lp.cellY); 3751 3752 if (d.dragView != null) { 3753 // We wrap the animation call in the temporary set and reset of the current 3754 // cellLayout to its final transform -- this means we animate the drag view to 3755 // the correct final location. 3756 setFinalTransitionTransform(cellLayout); 3757 mLauncher.getDragLayer().animateViewIntoPosition(d.dragView, view, 3758 exitSpringLoadedRunnable, this); 3759 resetTransitionTransform(cellLayout); 3760 } 3761 } 3762 } 3763 3764 public Bitmap createWidgetBitmap(ItemInfo widgetInfo, View layout) { 3765 int[] unScaledSize = mLauncher.getWorkspace().estimateItemSize(widgetInfo.spanX, 3766 widgetInfo.spanY, widgetInfo, false); 3767 int visibility = layout.getVisibility(); 3768 layout.setVisibility(VISIBLE); 3769 3770 int width = MeasureSpec.makeMeasureSpec(unScaledSize[0], MeasureSpec.EXACTLY); 3771 int height = MeasureSpec.makeMeasureSpec(unScaledSize[1], MeasureSpec.EXACTLY); 3772 Bitmap b = Bitmap.createBitmap(unScaledSize[0], unScaledSize[1], 3773 Bitmap.Config.ARGB_8888); 3774 Canvas c = new Canvas(b); 3775 3776 layout.measure(width, height); 3777 layout.layout(0, 0, unScaledSize[0], unScaledSize[1]); 3778 layout.draw(c); 3779 c.setBitmap(null); 3780 layout.setVisibility(visibility); 3781 return b; 3782 } 3783 3784 private void getFinalPositionForDropAnimation(int[] loc, float[] scaleXY, 3785 DragView dragView, CellLayout layout, ItemInfo info, int[] targetCell, 3786 boolean external, boolean scale) { 3787 // Now we animate the dragView, (ie. the widget or shortcut preview) into its final 3788 // location and size on the home screen. 3789 int spanX = info.spanX; 3790 int spanY = info.spanY; 3791 3792 Rect r = estimateItemPosition(layout, info, targetCell[0], targetCell[1], spanX, spanY); 3793 loc[0] = r.left; 3794 loc[1] = r.top; 3795 3796 setFinalTransitionTransform(layout); 3797 float cellLayoutScale = 3798 mLauncher.getDragLayer().getDescendantCoordRelativeToSelf(layout, loc, true); 3799 resetTransitionTransform(layout); 3800 3801 float dragViewScaleX; 3802 float dragViewScaleY; 3803 if (scale) { 3804 dragViewScaleX = (1.0f * r.width()) / dragView.getMeasuredWidth(); 3805 dragViewScaleY = (1.0f * r.height()) / dragView.getMeasuredHeight(); 3806 } else { 3807 dragViewScaleX = 1f; 3808 dragViewScaleY = 1f; 3809 } 3810 3811 // The animation will scale the dragView about its center, so we need to center about 3812 // the final location. 3813 loc[0] -= (dragView.getMeasuredWidth() - cellLayoutScale * r.width()) / 2; 3814 loc[1] -= (dragView.getMeasuredHeight() - cellLayoutScale * r.height()) / 2; 3815 3816 scaleXY[0] = dragViewScaleX * cellLayoutScale; 3817 scaleXY[1] = dragViewScaleY * cellLayoutScale; 3818 } 3819 3820 public void animateWidgetDrop(ItemInfo info, CellLayout cellLayout, DragView dragView, 3821 final Runnable onCompleteRunnable, int animationType, final View finalView, 3822 boolean external) { 3823 Rect from = new Rect(); 3824 mLauncher.getDragLayer().getViewRectRelativeToSelf(dragView, from); 3825 3826 int[] finalPos = new int[2]; 3827 float scaleXY[] = new float[2]; 3828 boolean scalePreview = !(info instanceof PendingAddShortcutInfo); 3829 getFinalPositionForDropAnimation(finalPos, scaleXY, dragView, cellLayout, info, mTargetCell, 3830 external, scalePreview); 3831 3832 Resources res = mLauncher.getResources(); 3833 final int duration = res.getInteger(R.integer.config_dropAnimMaxDuration) - 200; 3834 3835 // In the case where we've prebound the widget, we remove it from the DragLayer 3836 if (finalView instanceof AppWidgetHostView && external) { 3837 Log.d(TAG, "6557954 Animate widget drop, final view is appWidgetHostView"); 3838 mLauncher.getDragLayer().removeView(finalView); 3839 } 3840 if ((animationType == ANIMATE_INTO_POSITION_AND_RESIZE || external) && finalView != null) { 3841 Bitmap crossFadeBitmap = createWidgetBitmap(info, finalView); 3842 dragView.setCrossFadeBitmap(crossFadeBitmap); 3843 dragView.crossFade((int) (duration * 0.8f)); 3844 } else if (info.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET && external) { 3845 scaleXY[0] = scaleXY[1] = Math.min(scaleXY[0], scaleXY[1]); 3846 } 3847 3848 DragLayer dragLayer = mLauncher.getDragLayer(); 3849 if (animationType == CANCEL_TWO_STAGE_WIDGET_DROP_ANIMATION) { 3850 mLauncher.getDragLayer().animateViewIntoPosition(dragView, finalPos, 0f, 0.1f, 0.1f, 3851 DragLayer.ANIMATION_END_DISAPPEAR, onCompleteRunnable, duration); 3852 } else { 3853 int endStyle; 3854 if (animationType == ANIMATE_INTO_POSITION_AND_REMAIN) { 3855 endStyle = DragLayer.ANIMATION_END_REMAIN_VISIBLE; 3856 } else { 3857 endStyle = DragLayer.ANIMATION_END_DISAPPEAR;; 3858 } 3859 3860 Runnable onComplete = new Runnable() { 3861 @Override 3862 public void run() { 3863 if (finalView != null) { 3864 finalView.setVisibility(VISIBLE); 3865 } 3866 if (onCompleteRunnable != null) { 3867 onCompleteRunnable.run(); 3868 } 3869 } 3870 }; 3871 dragLayer.animateViewIntoPosition(dragView, from.left, from.top, finalPos[0], 3872 finalPos[1], 1, 1, 1, scaleXY[0], scaleXY[1], onComplete, endStyle, 3873 duration, this); 3874 } 3875 } 3876 3877 public void setFinalTransitionTransform(CellLayout layout) { 3878 if (isSwitchingState()) { 3879 mCurrentScale = getScaleX(); 3880 setScaleX(mNewScale); 3881 setScaleY(mNewScale); 3882 } 3883 } 3884 public void resetTransitionTransform(CellLayout layout) { 3885 if (isSwitchingState()) { 3886 setScaleX(mCurrentScale); 3887 setScaleY(mCurrentScale); 3888 } 3889 } 3890 3891 /** 3892 * Return the current {@link CellLayout}, correctly picking the destination 3893 * screen while a scroll is in progress. 3894 */ 3895 public CellLayout getCurrentDropLayout() { 3896 return (CellLayout) getChildAt(getNextPage()); 3897 } 3898 3899 /** 3900 * Return the current CellInfo describing our current drag; this method exists 3901 * so that Launcher can sync this object with the correct info when the activity is created/ 3902 * destroyed 3903 * 3904 */ 3905 public CellLayout.CellInfo getDragInfo() { 3906 return mDragInfo; 3907 } 3908 3909 public int getRestorePage() { 3910 return getNextPage() - numCustomPages(); 3911 } 3912 3913 /** 3914 * Calculate the nearest cell where the given object would be dropped. 3915 * 3916 * pixelX and pixelY should be in the coordinate system of layout 3917 */ 3918 private int[] findNearestArea(int pixelX, int pixelY, 3919 int spanX, int spanY, CellLayout layout, int[] recycle) { 3920 return layout.findNearestArea( 3921 pixelX, pixelY, spanX, spanY, recycle); 3922 } 3923 3924 void setup(DragController dragController) { 3925 mSpringLoadedDragController = new SpringLoadedDragController(mLauncher); 3926 mDragController = dragController; 3927 3928 // hardware layers on children are enabled on startup, but should be disabled until 3929 // needed 3930 updateChildrenLayersEnabled(false); 3931 setWallpaperDimension(); 3932 } 3933 3934 /** 3935 * Called at the end of a drag which originated on the workspace. 3936 */ 3937 public void onDropCompleted(final View target, final DragObject d, 3938 final boolean isFlingToDelete, final boolean success) { 3939 if (mDeferDropAfterUninstall) { 3940 mDeferredAction = new Runnable() { 3941 public void run() { 3942 onDropCompleted(target, d, isFlingToDelete, success); 3943 mDeferredAction = null; 3944 } 3945 }; 3946 return; 3947 } 3948 3949 boolean beingCalledAfterUninstall = mDeferredAction != null; 3950 3951 if (success && !(beingCalledAfterUninstall && !mUninstallSuccessful)) { 3952 if (target != this && mDragInfo != null) { 3953 CellLayout parentCell = getParentCellLayoutForView(mDragInfo.cell); 3954 if (parentCell != null) { 3955 parentCell.removeView(mDragInfo.cell); 3956 } 3957 if (mDragInfo.cell instanceof DropTarget) { 3958 mDragController.removeDropTarget((DropTarget) mDragInfo.cell); 3959 } 3960 // If we move the item to anything not on the Workspace, check if any empty 3961 // screens need to be removed. If we dropped back on the workspace, this will 3962 // be done post drop animation. 3963 removeExtraEmptyScreen(true, null, 0, true); 3964 } 3965 } else if (mDragInfo != null) { 3966 CellLayout cellLayout; 3967 if (mLauncher.isHotseatLayout(target)) { 3968 cellLayout = mLauncher.getHotseat().getLayout(); 3969 } else { 3970 cellLayout = getScreenWithId(mDragInfo.screenId); 3971 } 3972 cellLayout.onDropChild(mDragInfo.cell); 3973 } 3974 if ((d.cancelled || (beingCalledAfterUninstall && !mUninstallSuccessful)) 3975 && mDragInfo.cell != null) { 3976 mDragInfo.cell.setVisibility(VISIBLE); 3977 } 3978 mDragOutline = null; 3979 mDragInfo = null; 3980 } 3981 3982 public void deferCompleteDropAfterUninstallActivity() { 3983 mDeferDropAfterUninstall = true; 3984 } 3985 3986 /// maybe move this into a smaller part 3987 public void onUninstallActivityReturned(boolean success) { 3988 mDeferDropAfterUninstall = false; 3989 mUninstallSuccessful = success; 3990 if (mDeferredAction != null) { 3991 mDeferredAction.run(); 3992 } 3993 } 3994 3995 void updateItemLocationsInDatabase(CellLayout cl) { 3996 int count = cl.getShortcutsAndWidgets().getChildCount(); 3997 3998 long screenId = getIdForScreen(cl); 3999 int container = Favorites.CONTAINER_DESKTOP; 4000 4001 if (mLauncher.isHotseatLayout(cl)) { 4002 screenId = -1; 4003 container = Favorites.CONTAINER_HOTSEAT; 4004 } 4005 4006 for (int i = 0; i < count; i++) { 4007 View v = cl.getShortcutsAndWidgets().getChildAt(i); 4008 ItemInfo info = (ItemInfo) v.getTag(); 4009 // Null check required as the AllApps button doesn't have an item info 4010 if (info != null && info.requiresDbUpdate) { 4011 info.requiresDbUpdate = false; 4012 LauncherModel.modifyItemInDatabase(mLauncher, info, container, screenId, info.cellX, 4013 info.cellY, info.spanX, info.spanY); 4014 } 4015 } 4016 } 4017 4018 ArrayList<ComponentName> getUniqueComponents(boolean stripDuplicates, ArrayList<ComponentName> duplicates) { 4019 ArrayList<ComponentName> uniqueIntents = new ArrayList<ComponentName>(); 4020 getUniqueIntents((CellLayout) mLauncher.getHotseat().getLayout(), uniqueIntents, duplicates, false); 4021 int count = getChildCount(); 4022 for (int i = 0; i < count; i++) { 4023 CellLayout cl = (CellLayout) getChildAt(i); 4024 getUniqueIntents(cl, uniqueIntents, duplicates, false); 4025 } 4026 return uniqueIntents; 4027 } 4028 4029 void getUniqueIntents(CellLayout cl, ArrayList<ComponentName> uniqueIntents, 4030 ArrayList<ComponentName> duplicates, boolean stripDuplicates) { 4031 int count = cl.getShortcutsAndWidgets().getChildCount(); 4032 4033 ArrayList<View> children = new ArrayList<View>(); 4034 for (int i = 0; i < count; i++) { 4035 View v = cl.getShortcutsAndWidgets().getChildAt(i); 4036 children.add(v); 4037 } 4038 4039 for (int i = 0; i < count; i++) { 4040 View v = children.get(i); 4041 ItemInfo info = (ItemInfo) v.getTag(); 4042 // Null check required as the AllApps button doesn't have an item info 4043 if (info instanceof ShortcutInfo) { 4044 ShortcutInfo si = (ShortcutInfo) info; 4045 ComponentName cn = si.intent.getComponent(); 4046 4047 Uri dataUri = si.intent.getData(); 4048 // If dataUri is not null / empty or if this component isn't one that would 4049 // have previously showed up in the AllApps list, then this is a widget-type 4050 // shortcut, so ignore it. 4051 if (dataUri != null && !dataUri.equals(Uri.EMPTY)) { 4052 continue; 4053 } 4054 4055 if (!uniqueIntents.contains(cn)) { 4056 uniqueIntents.add(cn); 4057 } else { 4058 if (stripDuplicates) { 4059 cl.removeViewInLayout(v); 4060 LauncherModel.deleteItemFromDatabase(mLauncher, si); 4061 } 4062 if (duplicates != null) { 4063 duplicates.add(cn); 4064 } 4065 } 4066 } 4067 if (v instanceof FolderIcon) { 4068 FolderIcon fi = (FolderIcon) v; 4069 ArrayList<View> items = fi.getFolder().getItemsInReadingOrder(); 4070 for (int j = 0; j < items.size(); j++) { 4071 if (items.get(j).getTag() instanceof ShortcutInfo) { 4072 ShortcutInfo si = (ShortcutInfo) items.get(j).getTag(); 4073 ComponentName cn = si.intent.getComponent(); 4074 4075 Uri dataUri = si.intent.getData(); 4076 // If dataUri is not null / empty or if this component isn't one that would 4077 // have previously showed up in the AllApps list, then this is a widget-type 4078 // shortcut, so ignore it. 4079 if (dataUri != null && !dataUri.equals(Uri.EMPTY)) { 4080 continue; 4081 } 4082 4083 if (!uniqueIntents.contains(cn)) { 4084 uniqueIntents.add(cn); 4085 } else { 4086 if (stripDuplicates) { 4087 fi.getFolderInfo().remove(si); 4088 LauncherModel.deleteItemFromDatabase(mLauncher, si); 4089 } 4090 if (duplicates != null) { 4091 duplicates.add(cn); 4092 } 4093 } 4094 } 4095 } 4096 } 4097 } 4098 } 4099 4100 void saveWorkspaceToDb() { 4101 saveWorkspaceScreenToDb((CellLayout) mLauncher.getHotseat().getLayout()); 4102 int count = getChildCount(); 4103 for (int i = 0; i < count; i++) { 4104 CellLayout cl = (CellLayout) getChildAt(i); 4105 saveWorkspaceScreenToDb(cl); 4106 } 4107 } 4108 4109 void saveWorkspaceScreenToDb(CellLayout cl) { 4110 int count = cl.getShortcutsAndWidgets().getChildCount(); 4111 4112 long screenId = getIdForScreen(cl); 4113 int container = Favorites.CONTAINER_DESKTOP; 4114 4115 Hotseat hotseat = mLauncher.getHotseat(); 4116 if (mLauncher.isHotseatLayout(cl)) { 4117 screenId = -1; 4118 container = Favorites.CONTAINER_HOTSEAT; 4119 } 4120 4121 for (int i = 0; i < count; i++) { 4122 View v = cl.getShortcutsAndWidgets().getChildAt(i); 4123 ItemInfo info = (ItemInfo) v.getTag(); 4124 // Null check required as the AllApps button doesn't have an item info 4125 if (info != null) { 4126 int cellX = info.cellX; 4127 int cellY = info.cellY; 4128 if (container == Favorites.CONTAINER_HOTSEAT) { 4129 cellX = hotseat.getCellXFromOrder((int) info.screenId); 4130 cellY = hotseat.getCellYFromOrder((int) info.screenId); 4131 } 4132 LauncherModel.addItemToDatabase(mLauncher, info, container, screenId, cellX, 4133 cellY, false); 4134 } 4135 if (v instanceof FolderIcon) { 4136 FolderIcon fi = (FolderIcon) v; 4137 fi.getFolder().addItemLocationsInDatabase(); 4138 } 4139 } 4140 } 4141 4142 @Override 4143 public boolean supportsFlingToDelete() { 4144 return true; 4145 } 4146 4147 @Override 4148 public void onFlingToDelete(DragObject d, int x, int y, PointF vec) { 4149 // Do nothing 4150 } 4151 4152 @Override 4153 public void onFlingToDeleteCompleted() { 4154 // Do nothing 4155 } 4156 4157 public boolean isDropEnabled() { 4158 return true; 4159 } 4160 4161 @Override 4162 protected void onRestoreInstanceState(Parcelable state) { 4163 super.onRestoreInstanceState(state); 4164 Launcher.setScreen(mCurrentPage); 4165 } 4166 4167 @Override 4168 protected void dispatchRestoreInstanceState(SparseArray<Parcelable> container) { 4169 // We don't dispatch restoreInstanceState to our children using this code path. 4170 // Some pages will be restored immediately as their items are bound immediately, and 4171 // others we will need to wait until after their items are bound. 4172 mSavedStates = container; 4173 } 4174 4175 public void restoreInstanceStateForChild(int child) { 4176 if (mSavedStates != null) { 4177 mRestoredPages.add(child); 4178 CellLayout cl = (CellLayout) getChildAt(child); 4179 cl.restoreInstanceState(mSavedStates); 4180 } 4181 } 4182 4183 public void restoreInstanceStateForRemainingPages() { 4184 int count = getChildCount(); 4185 for (int i = 0; i < count; i++) { 4186 if (!mRestoredPages.contains(i)) { 4187 restoreInstanceStateForChild(i); 4188 } 4189 } 4190 mRestoredPages.clear(); 4191 mSavedStates = null; 4192 } 4193 4194 @Override 4195 public void scrollLeft() { 4196 if (!isSmall() && !mIsSwitchingState) { 4197 super.scrollLeft(); 4198 } 4199 Folder openFolder = getOpenFolder(); 4200 if (openFolder != null) { 4201 openFolder.completeDragExit(); 4202 } 4203 } 4204 4205 @Override 4206 public void scrollRight() { 4207 if (!isSmall() && !mIsSwitchingState) { 4208 super.scrollRight(); 4209 } 4210 Folder openFolder = getOpenFolder(); 4211 if (openFolder != null) { 4212 openFolder.completeDragExit(); 4213 } 4214 } 4215 4216 @Override 4217 public boolean onEnterScrollArea(int x, int y, int direction) { 4218 // Ignore the scroll area if we are dragging over the hot seat 4219 boolean isPortrait = !LauncherAppState.isScreenLandscape(getContext()); 4220 if (mLauncher.getHotseat() != null && isPortrait) { 4221 Rect r = new Rect(); 4222 mLauncher.getHotseat().getHitRect(r); 4223 if (r.contains(x, y)) { 4224 return false; 4225 } 4226 } 4227 4228 boolean result = false; 4229 if (!isSmall() && !mIsSwitchingState && getOpenFolder() == null) { 4230 mInScrollArea = true; 4231 4232 final int page = getNextPage() + 4233 (direction == DragController.SCROLL_LEFT ? -1 : 1); 4234 // We always want to exit the current layout to ensure parity of enter / exit 4235 setCurrentDropLayout(null); 4236 4237 if (0 <= page && page < getChildCount()) { 4238 // Ensure that we are not dragging over to the custom content screen 4239 if (getScreenIdForPageIndex(page) == CUSTOM_CONTENT_SCREEN_ID) { 4240 return false; 4241 } 4242 4243 CellLayout layout = (CellLayout) getChildAt(page); 4244 setCurrentDragOverlappingLayout(layout); 4245 4246 // Workspace is responsible for drawing the edge glow on adjacent pages, 4247 // so we need to redraw the workspace when this may have changed. 4248 invalidate(); 4249 result = true; 4250 } 4251 } 4252 return result; 4253 } 4254 4255 @Override 4256 public boolean onExitScrollArea() { 4257 boolean result = false; 4258 if (mInScrollArea) { 4259 invalidate(); 4260 CellLayout layout = getCurrentDropLayout(); 4261 setCurrentDropLayout(layout); 4262 setCurrentDragOverlappingLayout(layout); 4263 4264 result = true; 4265 mInScrollArea = false; 4266 } 4267 return result; 4268 } 4269 4270 private void onResetScrollArea() { 4271 setCurrentDragOverlappingLayout(null); 4272 mInScrollArea = false; 4273 } 4274 4275 /** 4276 * Returns a specific CellLayout 4277 */ 4278 CellLayout getParentCellLayoutForView(View v) { 4279 ArrayList<CellLayout> layouts = getWorkspaceAndHotseatCellLayouts(); 4280 for (CellLayout layout : layouts) { 4281 if (layout.getShortcutsAndWidgets().indexOfChild(v) > -1) { 4282 return layout; 4283 } 4284 } 4285 return null; 4286 } 4287 4288 /** 4289 * Returns a list of all the CellLayouts in the workspace. 4290 */ 4291 ArrayList<CellLayout> getWorkspaceAndHotseatCellLayouts() { 4292 ArrayList<CellLayout> layouts = new ArrayList<CellLayout>(); 4293 int screenCount = getChildCount(); 4294 for (int screen = 0; screen < screenCount; screen++) { 4295 layouts.add(((CellLayout) getChildAt(screen))); 4296 } 4297 if (mLauncher.getHotseat() != null) { 4298 layouts.add(mLauncher.getHotseat().getLayout()); 4299 } 4300 return layouts; 4301 } 4302 4303 /** 4304 * We should only use this to search for specific children. Do not use this method to modify 4305 * ShortcutsAndWidgetsContainer directly. Includes ShortcutAndWidgetContainers from 4306 * the hotseat and workspace pages 4307 */ 4308 ArrayList<ShortcutAndWidgetContainer> getAllShortcutAndWidgetContainers() { 4309 ArrayList<ShortcutAndWidgetContainer> childrenLayouts = 4310 new ArrayList<ShortcutAndWidgetContainer>(); 4311 int screenCount = getChildCount(); 4312 for (int screen = 0; screen < screenCount; screen++) { 4313 childrenLayouts.add(((CellLayout) getChildAt(screen)).getShortcutsAndWidgets()); 4314 } 4315 if (mLauncher.getHotseat() != null) { 4316 childrenLayouts.add(mLauncher.getHotseat().getLayout().getShortcutsAndWidgets()); 4317 } 4318 return childrenLayouts; 4319 } 4320 4321 public Folder getFolderForTag(Object tag) { 4322 ArrayList<ShortcutAndWidgetContainer> childrenLayouts = 4323 getAllShortcutAndWidgetContainers(); 4324 for (ShortcutAndWidgetContainer layout: childrenLayouts) { 4325 int count = layout.getChildCount(); 4326 for (int i = 0; i < count; i++) { 4327 View child = layout.getChildAt(i); 4328 if (child instanceof Folder) { 4329 Folder f = (Folder) child; 4330 if (f.getInfo() == tag && f.getInfo().opened) { 4331 return f; 4332 } 4333 } 4334 } 4335 } 4336 return null; 4337 } 4338 4339 public View getViewForTag(Object tag) { 4340 ArrayList<ShortcutAndWidgetContainer> childrenLayouts = 4341 getAllShortcutAndWidgetContainers(); 4342 for (ShortcutAndWidgetContainer layout: childrenLayouts) { 4343 int count = layout.getChildCount(); 4344 for (int i = 0; i < count; i++) { 4345 View child = layout.getChildAt(i); 4346 if (child.getTag() == tag) { 4347 return child; 4348 } 4349 } 4350 } 4351 return null; 4352 } 4353 4354 void clearDropTargets() { 4355 ArrayList<ShortcutAndWidgetContainer> childrenLayouts = 4356 getAllShortcutAndWidgetContainers(); 4357 for (ShortcutAndWidgetContainer layout: childrenLayouts) { 4358 int childCount = layout.getChildCount(); 4359 for (int j = 0; j < childCount; j++) { 4360 View v = layout.getChildAt(j); 4361 if (v instanceof DropTarget) { 4362 mDragController.removeDropTarget((DropTarget) v); 4363 } 4364 } 4365 } 4366 } 4367 4368 // Removes ALL items that match a given package name, this is usually called when a package 4369 // has been removed and we want to remove all components (widgets, shortcuts, apps) that 4370 // belong to that package. 4371 void removeItemsByPackageName(final ArrayList<String> packages) { 4372 final HashSet<String> packageNames = new HashSet<String>(); 4373 packageNames.addAll(packages); 4374 4375 // Filter out all the ItemInfos that this is going to affect 4376 final HashSet<ItemInfo> infos = new HashSet<ItemInfo>(); 4377 final HashSet<ComponentName> cns = new HashSet<ComponentName>(); 4378 ArrayList<CellLayout> cellLayouts = getWorkspaceAndHotseatCellLayouts(); 4379 for (CellLayout layoutParent : cellLayouts) { 4380 ViewGroup layout = layoutParent.getShortcutsAndWidgets(); 4381 int childCount = layout.getChildCount(); 4382 for (int i = 0; i < childCount; ++i) { 4383 View view = layout.getChildAt(i); 4384 infos.add((ItemInfo) view.getTag()); 4385 } 4386 } 4387 LauncherModel.ItemInfoFilter filter = new LauncherModel.ItemInfoFilter() { 4388 @Override 4389 public boolean filterItem(ItemInfo parent, ItemInfo info, 4390 ComponentName cn) { 4391 if (packageNames.contains(cn.getPackageName())) { 4392 cns.add(cn); 4393 return true; 4394 } 4395 return false; 4396 } 4397 }; 4398 LauncherModel.filterItemInfos(infos, filter); 4399 4400 // Remove the affected components 4401 removeItemsByComponentName(cns); 4402 } 4403 4404 // Removes items that match the application info specified, when applications are removed 4405 // as a part of an update, this is called to ensure that other widgets and application 4406 // shortcuts are not removed. 4407 void removeItemsByApplicationInfo(final ArrayList<AppInfo> appInfos) { 4408 // Just create a hash table of all the specific components that this will affect 4409 HashSet<ComponentName> cns = new HashSet<ComponentName>(); 4410 for (AppInfo info : appInfos) { 4411 cns.add(info.componentName); 4412 } 4413 4414 // Remove all the things 4415 removeItemsByComponentName(cns); 4416 } 4417 4418 void removeItemsByComponentName(final HashSet<ComponentName> componentNames) { 4419 ArrayList<CellLayout> cellLayouts = getWorkspaceAndHotseatCellLayouts(); 4420 for (final CellLayout layoutParent: cellLayouts) { 4421 final ViewGroup layout = layoutParent.getShortcutsAndWidgets(); 4422 4423 final HashMap<ItemInfo, View> children = new HashMap<ItemInfo, View>(); 4424 for (int j = 0; j < layout.getChildCount(); j++) { 4425 final View view = layout.getChildAt(j); 4426 children.put((ItemInfo) view.getTag(), view); 4427 } 4428 4429 final ArrayList<View> childrenToRemove = new ArrayList<View>(); 4430 final HashMap<FolderInfo, ArrayList<ShortcutInfo>> folderAppsToRemove = 4431 new HashMap<FolderInfo, ArrayList<ShortcutInfo>>(); 4432 LauncherModel.ItemInfoFilter filter = new LauncherModel.ItemInfoFilter() { 4433 @Override 4434 public boolean filterItem(ItemInfo parent, ItemInfo info, 4435 ComponentName cn) { 4436 if (parent instanceof FolderInfo) { 4437 if (componentNames.contains(cn)) { 4438 FolderInfo folder = (FolderInfo) parent; 4439 ArrayList<ShortcutInfo> appsToRemove; 4440 if (folderAppsToRemove.containsKey(folder)) { 4441 appsToRemove = folderAppsToRemove.get(folder); 4442 } else { 4443 appsToRemove = new ArrayList<ShortcutInfo>(); 4444 folderAppsToRemove.put(folder, appsToRemove); 4445 } 4446 appsToRemove.add((ShortcutInfo) info); 4447 return true; 4448 } 4449 } else { 4450 if (componentNames.contains(cn)) { 4451 childrenToRemove.add(children.get(info)); 4452 return true; 4453 } 4454 } 4455 return false; 4456 } 4457 }; 4458 LauncherModel.filterItemInfos(children.keySet(), filter); 4459 4460 // Remove all the apps from their folders 4461 for (FolderInfo folder : folderAppsToRemove.keySet()) { 4462 ArrayList<ShortcutInfo> appsToRemove = folderAppsToRemove.get(folder); 4463 for (ShortcutInfo info : appsToRemove) { 4464 folder.remove(info); 4465 } 4466 } 4467 4468 // Remove all the other children 4469 for (View child : childrenToRemove) { 4470 // Note: We can not remove the view directly from CellLayoutChildren as this 4471 // does not re-mark the spaces as unoccupied. 4472 layoutParent.removeViewInLayout(child); 4473 if (child instanceof DropTarget) { 4474 mDragController.removeDropTarget((DropTarget) child); 4475 } 4476 } 4477 4478 if (childrenToRemove.size() > 0) { 4479 layout.requestLayout(); 4480 layout.invalidate(); 4481 } 4482 } 4483 4484 // Strip all the empty screens 4485 stripEmptyScreens(); 4486 } 4487 4488 private void updateShortcut(HashMap<ComponentName, AppInfo> appsMap, ItemInfo info, 4489 View child) { 4490 ComponentName cn = info.getIntent().getComponent(); 4491 if (cn != null) { 4492 AppInfo appInfo = appsMap.get(info.getIntent().getComponent()); 4493 if ((appInfo != null) && LauncherModel.isShortcutInfoUpdateable(info)) { 4494 ShortcutInfo shortcutInfo = (ShortcutInfo) info; 4495 BubbleTextView shortcut = (BubbleTextView) child; 4496 shortcutInfo.updateIcon(mIconCache); 4497 shortcutInfo.title = appInfo.title.toString(); 4498 shortcut.applyFromShortcutInfo(shortcutInfo, mIconCache); 4499 } 4500 } 4501 } 4502 4503 void updateShortcuts(ArrayList<AppInfo> apps) { 4504 // Create a map of the apps to test against 4505 final HashMap<ComponentName, AppInfo> appsMap = new HashMap<ComponentName, AppInfo>(); 4506 for (AppInfo ai : apps) { 4507 appsMap.put(ai.componentName, ai); 4508 } 4509 4510 ArrayList<ShortcutAndWidgetContainer> childrenLayouts = getAllShortcutAndWidgetContainers(); 4511 for (ShortcutAndWidgetContainer layout: childrenLayouts) { 4512 // Update all the children shortcuts 4513 final HashMap<ItemInfo, View> children = new HashMap<ItemInfo, View>(); 4514 for (int j = 0; j < layout.getChildCount(); j++) { 4515 View v = layout.getChildAt(j); 4516 ItemInfo info = (ItemInfo) v.getTag(); 4517 if (info instanceof FolderInfo && v instanceof FolderIcon) { 4518 FolderIcon folder = (FolderIcon) v; 4519 ArrayList<View> folderChildren = folder.getFolder().getItemsInReadingOrder(); 4520 for (View fv : folderChildren) { 4521 info = (ItemInfo) fv.getTag(); 4522 updateShortcut(appsMap, info, fv); 4523 } 4524 folder.invalidate(); 4525 } else if (info instanceof ShortcutInfo) { 4526 updateShortcut(appsMap, info, v); 4527 } 4528 } 4529 } 4530 } 4531 4532 private void moveToScreen(int page, boolean animate) { 4533 if (!isSmall()) { 4534 if (animate) { 4535 snapToPage(page); 4536 } else { 4537 setCurrentPage(page); 4538 } 4539 } 4540 View child = getChildAt(page); 4541 if (child != null) { 4542 child.requestFocus(); 4543 } 4544 } 4545 4546 void moveToDefaultScreen(boolean animate) { 4547 moveToScreen(mDefaultPage, animate); 4548 } 4549 4550 void moveToCustomContentScreen(boolean animate) { 4551 if (hasCustomContent()) { 4552 int ccIndex = getPageIndexForScreenId(CUSTOM_CONTENT_SCREEN_ID); 4553 if (animate) { 4554 snapToPage(ccIndex); 4555 } else { 4556 setCurrentPage(ccIndex); 4557 } 4558 View child = getChildAt(ccIndex); 4559 if (child != null) { 4560 child.requestFocus(); 4561 } 4562 } 4563 } 4564 4565 @Override 4566 protected PageIndicator.PageMarkerResources getPageIndicatorMarker(int pageIndex) { 4567 long screenId = getScreenIdForPageIndex(pageIndex); 4568 if (screenId == EXTRA_EMPTY_SCREEN_ID) { 4569 int count = mScreenOrder.size() - numCustomPages(); 4570 if (count > 1) { 4571 return new PageIndicator.PageMarkerResources(R.drawable.ic_pageindicator_current, 4572 R.drawable.ic_pageindicator_add); 4573 } 4574 } 4575 4576 return super.getPageIndicatorMarker(pageIndex); 4577 } 4578 4579 @Override 4580 public void syncPages() { 4581 } 4582 4583 @Override 4584 public void syncPageItems(int page, boolean immediate) { 4585 } 4586 4587 protected String getPageIndicatorDescription() { 4588 String settings = getResources().getString(R.string.settings_button_text); 4589 return getCurrentPageDescription() + ", " + settings; 4590 } 4591 4592 protected String getCurrentPageDescription() { 4593 int page = (mNextPage != INVALID_PAGE) ? mNextPage : mCurrentPage; 4594 int delta = numCustomPages(); 4595 if (hasCustomContent() && getNextPage() == 0) { 4596 return mCustomContentDescription; 4597 } 4598 return String.format(getContext().getString(R.string.workspace_scroll_format), 4599 page + 1 - delta, getChildCount() - delta); 4600 } 4601 4602 public void getLocationInDragLayer(int[] loc) { 4603 mLauncher.getDragLayer().getLocationInDragLayer(this, loc); 4604 } 4605} 4606