Workspace.java revision a90303bb6fdad59e4a55855edba68c9902192599
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; 187 188 // State variable that indicates whether the pages are small (ie when you're 189 // in all apps or customize mode) 190 191 enum State { NORMAL, SPRING_LOADED, SMALL, OVERVIEW}; 192 private State mState = State.NORMAL; 193 private boolean mIsSwitchingState = false; 194 195 boolean mAnimatingViewIntoPlace = false; 196 boolean mIsDragOccuring = false; 197 boolean mChildrenLayersEnabled = true; 198 199 private boolean mStripScreensOnPageStopMoving = false; 200 201 /** Is the user is dragging an item near the edge of a page? */ 202 private boolean mInScrollArea = false; 203 204 private HolographicOutlineHelper mOutlineHelper; 205 private Bitmap mDragOutline = null; 206 private final Rect mTempRect = new Rect(); 207 private final int[] mTempXY = new int[2]; 208 private int[] mTempVisiblePagesRange = new int[2]; 209 private boolean mOverscrollTransformsSet; 210 private float mLastOverscrollPivotX; 211 public static final int DRAG_BITMAP_PADDING = 2; 212 private boolean mWorkspaceFadeInAdjacentScreens; 213 214 WallpaperOffsetInterpolator mWallpaperOffset; 215 private Runnable mDelayedResizeRunnable; 216 private Runnable mDelayedSnapToPageRunnable; 217 private Point mDisplaySize = new Point(); 218 private int mCameraDistance; 219 220 // Variables relating to the creation of user folders by hovering shortcuts over shortcuts 221 private static final int FOLDER_CREATION_TIMEOUT = 0; 222 private static final int REORDER_TIMEOUT = 250; 223 private final Alarm mFolderCreationAlarm = new Alarm(); 224 private final Alarm mReorderAlarm = new Alarm(); 225 private FolderRingAnimator mDragFolderRingAnimator = null; 226 private FolderIcon mDragOverFolderIcon = null; 227 private boolean mCreateUserFolderOnDrop = false; 228 private boolean mAddToExistingFolderOnDrop = false; 229 private DropTarget.DragEnforcer mDragEnforcer; 230 private float mMaxDistanceForFolderCreation; 231 232 // Variables relating to touch disambiguation (scrolling workspace vs. scrolling a widget) 233 private float mXDown; 234 private float mYDown; 235 final static float START_DAMPING_TOUCH_SLOP_ANGLE = (float) Math.PI / 6; 236 final static float MAX_SWIPE_ANGLE = (float) Math.PI / 3; 237 final static float TOUCH_SLOP_DAMPING_FACTOR = 4; 238 239 // Relating to the animation of items being dropped externally 240 public static final int ANIMATE_INTO_POSITION_AND_DISAPPEAR = 0; 241 public static final int ANIMATE_INTO_POSITION_AND_REMAIN = 1; 242 public static final int ANIMATE_INTO_POSITION_AND_RESIZE = 2; 243 public static final int COMPLETE_TWO_STAGE_WIDGET_DROP_ANIMATION = 3; 244 public static final int CANCEL_TWO_STAGE_WIDGET_DROP_ANIMATION = 4; 245 246 // Related to dragging, folder creation and reordering 247 private static final int DRAG_MODE_NONE = 0; 248 private static final int DRAG_MODE_CREATE_FOLDER = 1; 249 private static final int DRAG_MODE_ADD_TO_FOLDER = 2; 250 private static final int DRAG_MODE_REORDER = 3; 251 private int mDragMode = DRAG_MODE_NONE; 252 private int mLastReorderX = -1; 253 private int mLastReorderY = -1; 254 255 private SparseArray<Parcelable> mSavedStates; 256 private final ArrayList<Integer> mRestoredPages = new ArrayList<Integer>(); 257 258 // These variables are used for storing the initial and final values during workspace animations 259 private int mSavedScrollX; 260 private float mSavedRotationY; 261 private float mSavedTranslationX; 262 263 private float mCurrentScale; 264 private float mNewScale; 265 private float[] mOldBackgroundAlphas; 266 private float[] mOldAlphas; 267 private float[] mNewBackgroundAlphas; 268 private float[] mNewAlphas; 269 private int mLastChildCount = -1; 270 private float mTransitionProgress; 271 272 private Runnable mDeferredAction; 273 private boolean mDeferDropAfterUninstall; 274 private boolean mUninstallSuccessful; 275 276 private final Runnable mBindPages = new Runnable() { 277 @Override 278 public void run() { 279 mLauncher.getModel().bindRemainingSynchronousPages(); 280 } 281 }; 282 283 /** 284 * Used to inflate the Workspace from XML. 285 * 286 * @param context The application's context. 287 * @param attrs The attributes set containing the Workspace's customization values. 288 */ 289 public Workspace(Context context, AttributeSet attrs) { 290 this(context, attrs, 0); 291 } 292 293 /** 294 * Used to inflate the Workspace from XML. 295 * 296 * @param context The application's context. 297 * @param attrs The attributes set containing the Workspace's customization values. 298 * @param defStyle Unused. 299 */ 300 public Workspace(Context context, AttributeSet attrs, int defStyle) { 301 super(context, attrs, defStyle); 302 mContentIsRefreshable = false; 303 304 mOutlineHelper = HolographicOutlineHelper.obtain(context); 305 306 mDragEnforcer = new DropTarget.DragEnforcer(context); 307 // With workspace, data is available straight from the get-go 308 setDataIsReady(); 309 310 mLauncher = (Launcher) context; 311 final Resources res = getResources(); 312 mWorkspaceFadeInAdjacentScreens = LauncherAppState.getInstance().getDynamicGrid(). 313 getDeviceProfile().shouldFadeAdjacentWorkspaceScreens(); 314 mFadeInAdjacentScreens = false; 315 mWallpaperManager = WallpaperManager.getInstance(context); 316 317 LauncherAppState app = LauncherAppState.getInstance(); 318 DeviceProfile grid = app.getDynamicGrid().getDeviceProfile(); 319 TypedArray a = context.obtainStyledAttributes(attrs, 320 R.styleable.Workspace, defStyle, 0); 321 mSpringLoadedShrinkFactor = 322 res.getInteger(R.integer.config_workspaceSpringLoadShrinkPercentage) / 100.0f; 323 mOverviewModeShrinkFactor = grid.getOverviewModeScale(); 324 mCameraDistance = res.getInteger(R.integer.config_cameraDistance); 325 mOriginalDefaultPage = mDefaultPage = a.getInt(R.styleable.Workspace_defaultScreen, 1); 326 a.recycle(); 327 328 setOnHierarchyChangeListener(this); 329 setHapticFeedbackEnabled(false); 330 331 initWorkspace(); 332 333 // Disable multitouch across the workspace/all apps/customize tray 334 setMotionEventSplittingEnabled(true); 335 setImportantForAccessibility(View.IMPORTANT_FOR_ACCESSIBILITY_YES); 336 } 337 338 @Override 339 public void setInsets(Rect insets) { 340 mInsets.set(insets); 341 } 342 343 // estimate the size of a widget with spans hSpan, vSpan. return MAX_VALUE for each 344 // dimension if unsuccessful 345 public int[] estimateItemSize(int hSpan, int vSpan, 346 ItemInfo itemInfo, boolean springLoaded) { 347 int[] size = new int[2]; 348 if (getChildCount() > 0) { 349 // Use the first non-custom page to estimate the child position 350 CellLayout cl = (CellLayout) getChildAt(numCustomPages()); 351 Rect r = estimateItemPosition(cl, itemInfo, 0, 0, hSpan, vSpan); 352 size[0] = r.width(); 353 size[1] = r.height(); 354 if (springLoaded) { 355 size[0] *= mSpringLoadedShrinkFactor; 356 size[1] *= mSpringLoadedShrinkFactor; 357 } 358 return size; 359 } else { 360 size[0] = Integer.MAX_VALUE; 361 size[1] = Integer.MAX_VALUE; 362 return size; 363 } 364 } 365 366 public Rect estimateItemPosition(CellLayout cl, ItemInfo pendingInfo, 367 int hCell, int vCell, int hSpan, int vSpan) { 368 Rect r = new Rect(); 369 cl.cellToRect(hCell, vCell, hSpan, vSpan, r); 370 return r; 371 } 372 373 public void onDragStart(final DragSource source, Object info, int dragAction) { 374 mIsDragOccuring = true; 375 updateChildrenLayersEnabled(false); 376 mLauncher.lockScreenOrientation(); 377 mLauncher.onInteractionBegin(); 378 setChildrenBackgroundAlphaMultipliers(1f); 379 // Prevent any Un/InstallShortcutReceivers from updating the db while we are dragging 380 InstallShortcutReceiver.enableInstallQueue(); 381 UninstallShortcutReceiver.enableUninstallQueue(); 382 post(new Runnable() { 383 @Override 384 public void run() { 385 if (mIsDragOccuring) { 386 addExtraEmptyScreenOnDrag(); 387 } 388 } 389 }); 390 } 391 392 public void onDragEnd() { 393 mIsDragOccuring = false; 394 updateChildrenLayersEnabled(false); 395 mLauncher.unlockScreenOrientation(false); 396 397 // Re-enable any Un/InstallShortcutReceiver and now process any queued items 398 InstallShortcutReceiver.disableAndFlushInstallQueue(getContext()); 399 UninstallShortcutReceiver.disableAndFlushUninstallQueue(getContext()); 400 401 mDragSourceInternal = null; 402 mLauncher.onInteractionEnd(); 403 } 404 405 /** 406 * Initializes various states for this workspace. 407 */ 408 protected void initWorkspace() { 409 Context context = getContext(); 410 mCurrentPage = mDefaultPage; 411 Launcher.setScreen(mCurrentPage); 412 LauncherAppState app = LauncherAppState.getInstance(); 413 DeviceProfile grid = app.getDynamicGrid().getDeviceProfile(); 414 mIconCache = app.getIconCache(); 415 setWillNotDraw(false); 416 setClipChildren(false); 417 setClipToPadding(false); 418 setChildrenDrawnWithCacheEnabled(true); 419 420 setMinScale(mOverviewModeShrinkFactor); 421 setupLayoutTransition(); 422 423 final Resources res = getResources(); 424 try { 425 mBackground = res.getDrawable(R.drawable.apps_customize_bg); 426 } catch (Resources.NotFoundException e) { 427 // In this case, we will skip drawing background protection 428 } 429 430 mWallpaperOffset = new WallpaperOffsetInterpolator(); 431 Display display = mLauncher.getWindowManager().getDefaultDisplay(); 432 display.getSize(mDisplaySize); 433 434 mMaxDistanceForFolderCreation = (0.55f * grid.iconSizePx); 435 mFlingThresholdVelocity = (int) (FLING_THRESHOLD_VELOCITY * mDensity); 436 } 437 438 private void setupLayoutTransition() { 439 // We want to show layout transitions when pages are deleted, to close the gap. 440 mLayoutTransition = new LayoutTransition(); 441 mLayoutTransition.enableTransitionType(LayoutTransition.DISAPPEARING); 442 mLayoutTransition.enableTransitionType(LayoutTransition.CHANGE_DISAPPEARING); 443 mLayoutTransition.disableTransitionType(LayoutTransition.APPEARING); 444 mLayoutTransition.disableTransitionType(LayoutTransition.CHANGE_APPEARING); 445 setLayoutTransition(mLayoutTransition); 446 } 447 448 void enableLayoutTransitions() { 449 setLayoutTransition(mLayoutTransition); 450 } 451 void disableLayoutTransitions() { 452 setLayoutTransition(null); 453 } 454 455 @Override 456 protected int getScrollMode() { 457 return SmoothPagedView.X_LARGE_MODE; 458 } 459 460 @Override 461 public void onChildViewAdded(View parent, View child) { 462 if (!(child instanceof CellLayout)) { 463 throw new IllegalArgumentException("A Workspace can only have CellLayout children."); 464 } 465 CellLayout cl = ((CellLayout) child); 466 cl.setOnInterceptTouchListener(this); 467 cl.setClickable(true); 468 cl.setImportantForAccessibility(ViewCompat.IMPORTANT_FOR_ACCESSIBILITY_NO); 469 super.onChildViewAdded(parent, child); 470 } 471 472 protected boolean shouldDrawChild(View child) { 473 final CellLayout cl = (CellLayout) child; 474 return super.shouldDrawChild(child) && 475 (mIsSwitchingState || 476 cl.getShortcutsAndWidgets().getAlpha() > 0 || 477 cl.getBackgroundAlpha() > 0); 478 } 479 480 /** 481 * @return The open folder on the current screen, or null if there is none 482 */ 483 Folder getOpenFolder() { 484 DragLayer dragLayer = mLauncher.getDragLayer(); 485 int count = dragLayer.getChildCount(); 486 for (int i = 0; i < count; i++) { 487 View child = dragLayer.getChildAt(i); 488 if (child instanceof Folder) { 489 Folder folder = (Folder) child; 490 if (folder.getInfo().opened) 491 return folder; 492 } 493 } 494 return null; 495 } 496 497 boolean isTouchActive() { 498 return mTouchState != TOUCH_STATE_REST; 499 } 500 501 public void removeAllWorkspaceScreens() { 502 // Disable all layout transitions before removing all pages to ensure that we don't get the 503 // transition animations competing with us changing the scroll when we add pages or the 504 // custom content screen 505 disableLayoutTransitions(); 506 507 // Since we increment the current page when we call addCustomContentPage via bindScreens 508 // (and other places), we need to adjust the current page back when we clear the pages 509 if (hasCustomContent()) { 510 removeCustomContentPage(); 511 } 512 513 // Remove the pages and clear the screen models 514 removeAllViews(); 515 mScreenOrder.clear(); 516 mWorkspaceScreens.clear(); 517 518 // Re-enable the layout transitions 519 enableLayoutTransitions(); 520 } 521 522 public long insertNewWorkspaceScreenBeforeEmptyScreen(long screenId) { 523 // Find the index to insert this view into. If the empty screen exists, then 524 // insert it before that. 525 int insertIndex = mScreenOrder.indexOf(EXTRA_EMPTY_SCREEN_ID); 526 if (insertIndex < 0) { 527 insertIndex = mScreenOrder.size(); 528 } 529 return insertNewWorkspaceScreen(screenId, insertIndex); 530 } 531 532 public long insertNewWorkspaceScreen(long screenId) { 533 return insertNewWorkspaceScreen(screenId, getChildCount()); 534 } 535 536 public long insertNewWorkspaceScreen(long screenId, int insertIndex) { 537 // Log to disk 538 Launcher.addDumpLog(TAG, "11683562 - insertNewWorkspaceScreen(): " + screenId + 539 " at index: " + insertIndex, true); 540 541 if (mWorkspaceScreens.containsKey(screenId)) { 542 throw new RuntimeException("Screen id " + screenId + " already exists!"); 543 } 544 545 CellLayout newScreen = (CellLayout) 546 mLauncher.getLayoutInflater().inflate(R.layout.workspace_screen, null); 547 548 newScreen.setOnLongClickListener(mLongClickListener); 549 newScreen.setOnClickListener(mLauncher); 550 newScreen.setSoundEffectsEnabled(false); 551 mWorkspaceScreens.put(screenId, newScreen); 552 mScreenOrder.add(insertIndex, screenId); 553 addView(newScreen, insertIndex); 554 return screenId; 555 } 556 557 public void createCustomContentPage() { 558 CellLayout customScreen = (CellLayout) 559 mLauncher.getLayoutInflater().inflate(R.layout.workspace_screen, null); 560 561 mWorkspaceScreens.put(CUSTOM_CONTENT_SCREEN_ID, customScreen); 562 mScreenOrder.add(0, CUSTOM_CONTENT_SCREEN_ID); 563 564 // We want no padding on the custom content 565 customScreen.setPadding(0, 0, 0, 0); 566 567 addFullScreenPage(customScreen); 568 569 // Ensure that the current page and default page are maintained. 570 mDefaultPage = mOriginalDefaultPage + 1; 571 572 // Update the custom content hint 573 mLauncher.updateCustomContentHintVisibility(); 574 if (mRestorePage != INVALID_RESTORE_PAGE) { 575 mRestorePage = mRestorePage + 1; 576 } else { 577 setCurrentPage(getCurrentPage() + 1); 578 } 579 } 580 581 public void removeCustomContentPage() { 582 CellLayout customScreen = getScreenWithId(CUSTOM_CONTENT_SCREEN_ID); 583 if (customScreen == null) { 584 throw new RuntimeException("Expected custom content screen to exist"); 585 } 586 587 mWorkspaceScreens.remove(CUSTOM_CONTENT_SCREEN_ID); 588 mScreenOrder.remove(CUSTOM_CONTENT_SCREEN_ID); 589 removeView(customScreen); 590 591 if (mCustomContentCallbacks != null) { 592 mCustomContentCallbacks.onScrollProgressChanged(0); 593 mCustomContentCallbacks.onHide(); 594 } 595 596 mCustomContentCallbacks = null; 597 598 // Ensure that the current page and default page are maintained. 599 mDefaultPage = mOriginalDefaultPage - 1; 600 601 // Update the custom content hint 602 mLauncher.updateCustomContentHintVisibility(); 603 if (mRestorePage != INVALID_RESTORE_PAGE) { 604 mRestorePage = mRestorePage - 1; 605 } else { 606 setCurrentPage(getCurrentPage() - 1); 607 } 608 } 609 610 public void addToCustomContentPage(View customContent, CustomContentCallbacks callbacks, 611 String description) { 612 if (getPageIndexForScreenId(CUSTOM_CONTENT_SCREEN_ID) < 0) { 613 throw new RuntimeException("Expected custom content screen to exist"); 614 } 615 616 // Add the custom content to the full screen custom page 617 CellLayout customScreen = getScreenWithId(CUSTOM_CONTENT_SCREEN_ID); 618 int spanX = customScreen.getCountX(); 619 int spanY = customScreen.getCountY(); 620 CellLayout.LayoutParams lp = new CellLayout.LayoutParams(0, 0, spanX, spanY); 621 lp.canReorder = false; 622 lp.isFullscreen = true; 623 if (customContent instanceof Insettable) { 624 ((Insettable)customContent).setInsets(mInsets); 625 } 626 customScreen.removeAllViews(); 627 customScreen.addViewToCellLayout(customContent, 0, 0, lp, true); 628 mCustomContentDescription = description; 629 630 mCustomContentCallbacks = callbacks; 631 } 632 633 public void addExtraEmptyScreenOnDrag() { 634 // Log to disk 635 Launcher.addDumpLog(TAG, "11683562 - addExtraEmptyScreenOnDrag()", true); 636 637 boolean lastChildOnScreen = false; 638 boolean childOnFinalScreen = false; 639 640 // Cancel any pending removal of empty screen 641 mRemoveEmptyScreenRunnable = null; 642 643 if (mDragSourceInternal != null) { 644 if (mDragSourceInternal.getChildCount() == 1) { 645 lastChildOnScreen = true; 646 } 647 CellLayout cl = (CellLayout) mDragSourceInternal.getParent(); 648 if (indexOfChild(cl) == getChildCount() - 1) { 649 childOnFinalScreen = true; 650 } 651 } 652 653 // If this is the last item on the final screen 654 if (lastChildOnScreen && childOnFinalScreen) { 655 return; 656 } 657 if (!mWorkspaceScreens.containsKey(EXTRA_EMPTY_SCREEN_ID)) { 658 insertNewWorkspaceScreen(EXTRA_EMPTY_SCREEN_ID); 659 } 660 } 661 662 public boolean addExtraEmptyScreen() { 663 // Log to disk 664 Launcher.addDumpLog(TAG, "11683562 - addExtraEmptyScreen()", true); 665 666 if (!mWorkspaceScreens.containsKey(EXTRA_EMPTY_SCREEN_ID)) { 667 insertNewWorkspaceScreen(EXTRA_EMPTY_SCREEN_ID); 668 return true; 669 } 670 return false; 671 } 672 673 private void convertFinalScreenToEmptyScreenIfNecessary() { 674 // Log to disk 675 Launcher.addDumpLog(TAG, "11683562 - convertFinalScreenToEmptyScreenIfNecessary()", true); 676 677 if (hasExtraEmptyScreen() || mScreenOrder.size() == 0) return; 678 long finalScreenId = mScreenOrder.get(mScreenOrder.size() - 1); 679 680 if (finalScreenId == CUSTOM_CONTENT_SCREEN_ID) return; 681 CellLayout finalScreen = mWorkspaceScreens.get(finalScreenId); 682 683 // If the final screen is empty, convert it to the extra empty screen 684 if (finalScreen.getShortcutsAndWidgets().getChildCount() == 0 && 685 !finalScreen.isDropPending()) { 686 mWorkspaceScreens.remove(finalScreenId); 687 mScreenOrder.remove(finalScreenId); 688 689 // if this is the last non-custom content screen, convert it to the empty screen 690 mWorkspaceScreens.put(EXTRA_EMPTY_SCREEN_ID, finalScreen); 691 mScreenOrder.add(EXTRA_EMPTY_SCREEN_ID); 692 693 // XXX: Do we need to update LM workspace screens here? 694 Launcher.addDumpLog(TAG, "11683562 - extra empty screen: " + finalScreenId, true); 695 } 696 } 697 698 public void removeExtraEmptyScreen(final boolean animate, final Runnable onComplete) { 699 removeExtraEmptyScreen(animate, onComplete, 0, false); 700 } 701 702 public void removeExtraEmptyScreen(final boolean animate, final Runnable onComplete, 703 final int delay, final boolean stripEmptyScreens) { 704 // Log to disk 705 Launcher.addDumpLog(TAG, "11683562 - removeExtraEmptyScreen()", true); 706 if (delay > 0) { 707 postDelayed(new Runnable() { 708 @Override 709 public void run() { 710 removeExtraEmptyScreen(animate, onComplete, 0, stripEmptyScreens); 711 } 712 713 }, delay); 714 return; 715 } 716 717 convertFinalScreenToEmptyScreenIfNecessary(); 718 if (hasExtraEmptyScreen()) { 719 int emptyIndex = mScreenOrder.indexOf(EXTRA_EMPTY_SCREEN_ID); 720 if (getNextPage() == emptyIndex) { 721 snapToPage(getNextPage() - 1, SNAP_OFF_EMPTY_SCREEN_DURATION); 722 fadeAndRemoveEmptyScreen(SNAP_OFF_EMPTY_SCREEN_DURATION, FADE_EMPTY_SCREEN_DURATION, 723 onComplete, stripEmptyScreens); 724 } else { 725 fadeAndRemoveEmptyScreen(0, FADE_EMPTY_SCREEN_DURATION, 726 onComplete, stripEmptyScreens); 727 } 728 return; 729 } 730 if (onComplete != null) { 731 onComplete.run(); 732 } 733 } 734 735 private void fadeAndRemoveEmptyScreen(int delay, int duration, final Runnable onComplete, 736 final boolean stripEmptyScreens) { 737 // Log to disk 738 // XXX: Do we need to update LM workspace screens below? 739 Launcher.addDumpLog(TAG, "11683562 - fadeAndRemoveEmptyScreen()", true); 740 PropertyValuesHolder alpha = PropertyValuesHolder.ofFloat("alpha", 0f); 741 PropertyValuesHolder bgAlpha = PropertyValuesHolder.ofFloat("backgroundAlpha", 0f); 742 743 final CellLayout cl = mWorkspaceScreens.get(EXTRA_EMPTY_SCREEN_ID); 744 745 mRemoveEmptyScreenRunnable = new Runnable() { 746 @Override 747 public void run() { 748 if (hasExtraEmptyScreen()) { 749 mWorkspaceScreens.remove(EXTRA_EMPTY_SCREEN_ID); 750 mScreenOrder.remove(EXTRA_EMPTY_SCREEN_ID); 751 removeView(cl); 752 if (stripEmptyScreens) { 753 stripEmptyScreens(); 754 } 755 } 756 } 757 }; 758 759 ObjectAnimator oa = ObjectAnimator.ofPropertyValuesHolder(cl, alpha, bgAlpha); 760 oa.setDuration(duration); 761 oa.setStartDelay(delay); 762 oa.addListener(new AnimatorListenerAdapter() { 763 @Override 764 public void onAnimationEnd(Animator animation) { 765 if (mRemoveEmptyScreenRunnable != null) { 766 mRemoveEmptyScreenRunnable.run(); 767 } 768 if (onComplete != null) { 769 onComplete.run(); 770 } 771 } 772 }); 773 oa.start(); 774 } 775 776 public boolean hasExtraEmptyScreen() { 777 int nScreens = getChildCount(); 778 nScreens = nScreens - numCustomPages(); 779 return mWorkspaceScreens.containsKey(EXTRA_EMPTY_SCREEN_ID) && nScreens > 1; 780 } 781 782 public long commitExtraEmptyScreen() { 783 // Log to disk 784 Launcher.addDumpLog(TAG, "11683562 - commitExtraEmptyScreen()", true); 785 786 int index = getPageIndexForScreenId(EXTRA_EMPTY_SCREEN_ID); 787 CellLayout cl = mWorkspaceScreens.get(EXTRA_EMPTY_SCREEN_ID); 788 mWorkspaceScreens.remove(EXTRA_EMPTY_SCREEN_ID); 789 mScreenOrder.remove(EXTRA_EMPTY_SCREEN_ID); 790 791 long newId = LauncherAppState.getLauncherProvider().generateNewScreenId(); 792 mWorkspaceScreens.put(newId, cl); 793 mScreenOrder.add(newId); 794 795 // Update the page indicator marker 796 if (getPageIndicator() != null) { 797 getPageIndicator().updateMarker(index, getPageIndicatorMarker(index)); 798 } 799 800 // Update the model for the new screen 801 mLauncher.getModel().updateWorkspaceScreenOrder(mLauncher, mScreenOrder); 802 803 return newId; 804 } 805 806 public CellLayout getScreenWithId(long screenId) { 807 CellLayout layout = mWorkspaceScreens.get(screenId); 808 return layout; 809 } 810 811 public long getIdForScreen(CellLayout layout) { 812 Iterator<Long> iter = mWorkspaceScreens.keySet().iterator(); 813 while (iter.hasNext()) { 814 long id = iter.next(); 815 if (mWorkspaceScreens.get(id) == layout) { 816 return id; 817 } 818 } 819 return -1; 820 } 821 822 public int getPageIndexForScreenId(long screenId) { 823 return indexOfChild(mWorkspaceScreens.get(screenId)); 824 } 825 826 public long getScreenIdForPageIndex(int index) { 827 if (0 <= index && index < mScreenOrder.size()) { 828 return mScreenOrder.get(index); 829 } 830 return -1; 831 } 832 833 ArrayList<Long> getScreenOrder() { 834 return mScreenOrder; 835 } 836 837 public void stripEmptyScreens() { 838 // Log to disk 839 Launcher.addDumpLog(TAG, "11683562 - stripEmptyScreens()", true); 840 841 if (isPageMoving()) { 842 mStripScreensOnPageStopMoving = true; 843 return; 844 } 845 846 int currentPage = getNextPage(); 847 ArrayList<Long> removeScreens = new ArrayList<Long>(); 848 for (Long id: mWorkspaceScreens.keySet()) { 849 CellLayout cl = mWorkspaceScreens.get(id); 850 if (id >= 0 && cl.getShortcutsAndWidgets().getChildCount() == 0) { 851 removeScreens.add(id); 852 } 853 } 854 855 // We enforce at least one page to add new items to. In the case that we remove the last 856 // such screen, we convert the last screen to the empty screen 857 int minScreens = 1 + numCustomPages(); 858 859 int pageShift = 0; 860 for (Long id: removeScreens) { 861 Launcher.addDumpLog(TAG, "11683562 - removing id: " + id, true); 862 CellLayout cl = mWorkspaceScreens.get(id); 863 mWorkspaceScreens.remove(id); 864 mScreenOrder.remove(id); 865 866 if (getChildCount() > minScreens) { 867 if (indexOfChild(cl) < currentPage) { 868 pageShift++; 869 } 870 removeView(cl); 871 } else { 872 // if this is the last non-custom content screen, convert it to the empty screen 873 mRemoveEmptyScreenRunnable = null; 874 mWorkspaceScreens.put(EXTRA_EMPTY_SCREEN_ID, cl); 875 mScreenOrder.add(EXTRA_EMPTY_SCREEN_ID); 876 } 877 } 878 879 if (!removeScreens.isEmpty()) { 880 // Update the model if we have changed any screens 881 mLauncher.getModel().updateWorkspaceScreenOrder(mLauncher, mScreenOrder); 882 } 883 884 if (pageShift >= 0) { 885 setCurrentPage(currentPage - pageShift); 886 } 887 } 888 889 // See implementation for parameter definition. 890 void addInScreen(View child, long container, long screenId, 891 int x, int y, int spanX, int spanY) { 892 addInScreen(child, container, screenId, x, y, spanX, spanY, false, false); 893 } 894 895 // At bind time, we use the rank (screenId) to compute x and y for hotseat items. 896 // See implementation for parameter definition. 897 void addInScreenFromBind(View child, long container, long screenId, int x, int y, 898 int spanX, int spanY) { 899 addInScreen(child, container, screenId, x, y, spanX, spanY, false, true); 900 } 901 902 // See implementation for parameter definition. 903 void addInScreen(View child, long container, long screenId, int x, int y, int spanX, int spanY, 904 boolean insert) { 905 addInScreen(child, container, screenId, x, y, spanX, spanY, insert, false); 906 } 907 908 /** 909 * Adds the specified child in the specified screen. The position and dimension of 910 * the child are defined by x, y, spanX and spanY. 911 * 912 * @param child The child to add in one of the workspace's screens. 913 * @param screenId The screen in which to add the child. 914 * @param x The X position of the child in the screen's grid. 915 * @param y The Y position of the child in the screen's grid. 916 * @param spanX The number of cells spanned horizontally by the child. 917 * @param spanY The number of cells spanned vertically by the child. 918 * @param insert When true, the child is inserted at the beginning of the children list. 919 * @param computeXYFromRank When true, we use the rank (stored in screenId) to compute 920 * the x and y position in which to place hotseat items. Otherwise 921 * we use the x and y position to compute the rank. 922 */ 923 void addInScreen(View child, long container, long screenId, int x, int y, int spanX, int spanY, 924 boolean insert, boolean computeXYFromRank) { 925 if (container == LauncherSettings.Favorites.CONTAINER_DESKTOP) { 926 if (getScreenWithId(screenId) == null) { 927 Log.e(TAG, "Skipping child, screenId " + screenId + " not found"); 928 // DEBUGGING - Print out the stack trace to see where we are adding from 929 new Throwable().printStackTrace(); 930 return; 931 } 932 } 933 if (screenId == EXTRA_EMPTY_SCREEN_ID) { 934 // This should never happen 935 throw new RuntimeException("Screen id should not be EXTRA_EMPTY_SCREEN_ID"); 936 } 937 938 final CellLayout layout; 939 if (container == LauncherSettings.Favorites.CONTAINER_HOTSEAT) { 940 layout = mLauncher.getHotseat().getLayout(); 941 child.setOnKeyListener(null); 942 943 // Hide folder title in the hotseat 944 if (child instanceof FolderIcon) { 945 ((FolderIcon) child).setTextVisible(false); 946 } 947 948 if (computeXYFromRank) { 949 x = mLauncher.getHotseat().getCellXFromOrder((int) screenId); 950 y = mLauncher.getHotseat().getCellYFromOrder((int) screenId); 951 } else { 952 screenId = mLauncher.getHotseat().getOrderInHotseat(x, y); 953 } 954 } else { 955 // Show folder title if not in the hotseat 956 if (child instanceof FolderIcon) { 957 ((FolderIcon) child).setTextVisible(true); 958 } 959 layout = getScreenWithId(screenId); 960 child.setOnKeyListener(new IconKeyEventListener()); 961 } 962 963 ViewGroup.LayoutParams genericLp = child.getLayoutParams(); 964 CellLayout.LayoutParams lp; 965 if (genericLp == null || !(genericLp instanceof CellLayout.LayoutParams)) { 966 lp = new CellLayout.LayoutParams(x, y, spanX, spanY); 967 } else { 968 lp = (CellLayout.LayoutParams) genericLp; 969 lp.cellX = x; 970 lp.cellY = y; 971 lp.cellHSpan = spanX; 972 lp.cellVSpan = spanY; 973 } 974 975 if (spanX < 0 && spanY < 0) { 976 lp.isLockedToGrid = false; 977 } 978 979 // Get the canonical child id to uniquely represent this view in this screen 980 int childId = LauncherModel.getCellLayoutChildId(container, screenId, x, y, spanX, spanY); 981 boolean markCellsAsOccupied = !(child instanceof Folder); 982 if (!layout.addViewToCellLayout(child, insert ? 0 : -1, childId, lp, markCellsAsOccupied)) { 983 // TODO: This branch occurs when the workspace is adding views 984 // outside of the defined grid 985 // maybe we should be deleting these items from the LauncherModel? 986 Launcher.addDumpLog(TAG, "Failed to add to item at (" + lp.cellX + "," + lp.cellY + ") to CellLayout", true); 987 } 988 989 if (!(child instanceof Folder)) { 990 child.setHapticFeedbackEnabled(false); 991 child.setOnLongClickListener(mLongClickListener); 992 } 993 if (child instanceof DropTarget) { 994 mDragController.addDropTarget((DropTarget) child); 995 } 996 } 997 998 /** 999 * Called directly from a CellLayout (not by the framework), after we've been added as a 1000 * listener via setOnInterceptTouchEventListener(). This allows us to tell the CellLayout 1001 * that it should intercept touch events, which is not something that is normally supported. 1002 */ 1003 @Override 1004 public boolean onTouch(View v, MotionEvent event) { 1005 return (isSmall() || !isFinishedSwitchingState()) 1006 || (!isSmall() && indexOfChild(v) != mCurrentPage); 1007 } 1008 1009 public boolean isSwitchingState() { 1010 return mIsSwitchingState; 1011 } 1012 1013 /** This differs from isSwitchingState in that we take into account how far the transition 1014 * has completed. */ 1015 public boolean isFinishedSwitchingState() { 1016 return !mIsSwitchingState || (mTransitionProgress > 0.5f); 1017 } 1018 1019 protected void onWindowVisibilityChanged (int visibility) { 1020 mLauncher.onWindowVisibilityChanged(visibility); 1021 } 1022 1023 @Override 1024 public boolean dispatchUnhandledMove(View focused, int direction) { 1025 if (isSmall() || !isFinishedSwitchingState()) { 1026 // when the home screens are shrunken, shouldn't allow side-scrolling 1027 return false; 1028 } 1029 return super.dispatchUnhandledMove(focused, direction); 1030 } 1031 1032 @Override 1033 public boolean onInterceptTouchEvent(MotionEvent ev) { 1034 switch (ev.getAction() & MotionEvent.ACTION_MASK) { 1035 case MotionEvent.ACTION_DOWN: 1036 mXDown = ev.getX(); 1037 mYDown = ev.getY(); 1038 mTouchDownTime = System.currentTimeMillis(); 1039 break; 1040 case MotionEvent.ACTION_POINTER_UP: 1041 case MotionEvent.ACTION_UP: 1042 if (mTouchState == TOUCH_STATE_REST) { 1043 final CellLayout currentPage = (CellLayout) getChildAt(mCurrentPage); 1044 if (!currentPage.lastDownOnOccupiedCell()) { 1045 onWallpaperTap(ev); 1046 } 1047 } 1048 } 1049 return super.onInterceptTouchEvent(ev); 1050 } 1051 1052 protected void reinflateWidgetsIfNecessary() { 1053 final int clCount = getChildCount(); 1054 for (int i = 0; i < clCount; i++) { 1055 CellLayout cl = (CellLayout) getChildAt(i); 1056 ShortcutAndWidgetContainer swc = cl.getShortcutsAndWidgets(); 1057 final int itemCount = swc.getChildCount(); 1058 for (int j = 0; j < itemCount; j++) { 1059 View v = swc.getChildAt(j); 1060 1061 if (v.getTag() instanceof LauncherAppWidgetInfo) { 1062 LauncherAppWidgetInfo info = (LauncherAppWidgetInfo) v.getTag(); 1063 LauncherAppWidgetHostView lahv = (LauncherAppWidgetHostView) info.hostView; 1064 if (lahv != null && lahv.orientationChangedSincedInflation()) { 1065 mLauncher.removeAppWidget(info); 1066 // Remove the current widget which is inflated with the wrong orientation 1067 cl.removeView(lahv); 1068 mLauncher.bindAppWidget(info); 1069 } 1070 } 1071 } 1072 } 1073 } 1074 1075 @Override 1076 protected void determineScrollingStart(MotionEvent ev) { 1077 if (!isFinishedSwitchingState()) return; 1078 1079 float deltaX = ev.getX() - mXDown; 1080 float absDeltaX = Math.abs(deltaX); 1081 float absDeltaY = Math.abs(ev.getY() - mYDown); 1082 1083 if (Float.compare(absDeltaX, 0f) == 0) return; 1084 1085 float slope = absDeltaY / absDeltaX; 1086 float theta = (float) Math.atan(slope); 1087 1088 if (absDeltaX > mTouchSlop || absDeltaY > mTouchSlop) { 1089 cancelCurrentPageLongPress(); 1090 } 1091 1092 boolean passRightSwipesToCustomContent = 1093 (mTouchDownTime - mCustomContentShowTime) > CUSTOM_CONTENT_GESTURE_DELAY; 1094 1095 boolean swipeInIgnoreDirection = isLayoutRtl() ? deltaX < 0 : deltaX > 0; 1096 if (swipeInIgnoreDirection && getScreenIdForPageIndex(getCurrentPage()) == 1097 CUSTOM_CONTENT_SCREEN_ID && passRightSwipesToCustomContent) { 1098 // Pass swipes to the right to the custom content page. 1099 return; 1100 } 1101 1102 if (theta > MAX_SWIPE_ANGLE) { 1103 // Above MAX_SWIPE_ANGLE, we don't want to ever start scrolling the workspace 1104 return; 1105 } else if (theta > START_DAMPING_TOUCH_SLOP_ANGLE) { 1106 // Above START_DAMPING_TOUCH_SLOP_ANGLE and below MAX_SWIPE_ANGLE, we want to 1107 // increase the touch slop to make it harder to begin scrolling the workspace. This 1108 // results in vertically scrolling widgets to more easily. The higher the angle, the 1109 // more we increase touch slop. 1110 theta -= START_DAMPING_TOUCH_SLOP_ANGLE; 1111 float extraRatio = (float) 1112 Math.sqrt((theta / (MAX_SWIPE_ANGLE - START_DAMPING_TOUCH_SLOP_ANGLE))); 1113 super.determineScrollingStart(ev, 1 + TOUCH_SLOP_DAMPING_FACTOR * extraRatio); 1114 } else { 1115 // Below START_DAMPING_TOUCH_SLOP_ANGLE, we don't do anything special 1116 super.determineScrollingStart(ev); 1117 } 1118 } 1119 1120 protected void onPageBeginMoving() { 1121 super.onPageBeginMoving(); 1122 1123 if (isHardwareAccelerated()) { 1124 updateChildrenLayersEnabled(false); 1125 } else { 1126 if (mNextPage != INVALID_PAGE) { 1127 // we're snapping to a particular screen 1128 enableChildrenCache(mCurrentPage, mNextPage); 1129 } else { 1130 // this is when user is actively dragging a particular screen, they might 1131 // swipe it either left or right (but we won't advance by more than one screen) 1132 enableChildrenCache(mCurrentPage - 1, mCurrentPage + 1); 1133 } 1134 } 1135 1136 // Only show page outlines as we pan if we are on large screen 1137 if (LauncherAppState.getInstance().isScreenLarge()) { 1138 showOutlines(); 1139 } 1140 1141 // If we are not fading in adjacent screens, we still need to restore the alpha in case the 1142 // user scrolls while we are transitioning (should not affect dispatchDraw optimizations) 1143 if (!mWorkspaceFadeInAdjacentScreens) { 1144 for (int i = 0; i < getChildCount(); ++i) { 1145 ((CellLayout) getPageAt(i)).setShortcutAndWidgetAlpha(1f); 1146 } 1147 } 1148 } 1149 1150 protected void onPageEndMoving() { 1151 super.onPageEndMoving(); 1152 1153 if (isHardwareAccelerated()) { 1154 updateChildrenLayersEnabled(false); 1155 } else { 1156 clearChildrenCache(); 1157 } 1158 1159 if (mDragController.isDragging()) { 1160 if (isSmall()) { 1161 // If we are in springloaded mode, then force an event to check if the current touch 1162 // is under a new page (to scroll to) 1163 mDragController.forceTouchMove(); 1164 } 1165 } else { 1166 // If we are not mid-dragging, hide the page outlines if we are on a large screen 1167 if (LauncherAppState.getInstance().isScreenLarge()) { 1168 hideOutlines(); 1169 } 1170 } 1171 1172 if (mDelayedResizeRunnable != null) { 1173 mDelayedResizeRunnable.run(); 1174 mDelayedResizeRunnable = null; 1175 } 1176 1177 if (mDelayedSnapToPageRunnable != null) { 1178 mDelayedSnapToPageRunnable.run(); 1179 mDelayedSnapToPageRunnable = null; 1180 } 1181 if (mStripScreensOnPageStopMoving) { 1182 stripEmptyScreens(); 1183 mStripScreensOnPageStopMoving = false; 1184 } 1185 } 1186 1187 @Override 1188 protected void notifyPageSwitchListener() { 1189 super.notifyPageSwitchListener(); 1190 Launcher.setScreen(mCurrentPage); 1191 1192 if (hasCustomContent() && getNextPage() == 0 && !mCustomContentShowing) { 1193 mCustomContentShowing = true; 1194 if (mCustomContentCallbacks != null) { 1195 mCustomContentCallbacks.onShow(); 1196 mCustomContentShowTime = System.currentTimeMillis(); 1197 mLauncher.updateVoiceButtonProxyVisible(false); 1198 } 1199 } else if (hasCustomContent() && getNextPage() != 0 && mCustomContentShowing) { 1200 mCustomContentShowing = false; 1201 if (mCustomContentCallbacks != null) { 1202 mCustomContentCallbacks.onHide(); 1203 mLauncher.resetQSBScroll(); 1204 mLauncher.updateVoiceButtonProxyVisible(false); 1205 } 1206 } 1207 if (getPageIndicator() != null) { 1208 getPageIndicator().setContentDescription(getPageIndicatorDescription()); 1209 } 1210 } 1211 1212 protected CustomContentCallbacks getCustomContentCallbacks() { 1213 return mCustomContentCallbacks; 1214 } 1215 1216 protected void setWallpaperDimension() { 1217 String spKey = WallpaperCropActivity.getSharedPreferencesKey(); 1218 SharedPreferences sp = mLauncher.getSharedPreferences(spKey, Context.MODE_MULTI_PROCESS); 1219 WallpaperPickerActivity.suggestWallpaperDimension(mLauncher.getResources(), 1220 sp, mLauncher.getWindowManager(), mWallpaperManager); 1221 } 1222 1223 protected void snapToPage(int whichPage, Runnable r) { 1224 snapToPage(whichPage, SLOW_PAGE_SNAP_ANIMATION_DURATION, r); 1225 } 1226 1227 protected void snapToPage(int whichPage, int duration, Runnable r) { 1228 if (mDelayedSnapToPageRunnable != null) { 1229 mDelayedSnapToPageRunnable.run(); 1230 } 1231 mDelayedSnapToPageRunnable = r; 1232 snapToPage(whichPage, duration); 1233 } 1234 1235 protected void snapToScreenId(long screenId, Runnable r) { 1236 snapToPage(getPageIndexForScreenId(screenId), r); 1237 } 1238 1239 class WallpaperOffsetInterpolator implements Choreographer.FrameCallback { 1240 float mFinalOffset = 0.0f; 1241 float mCurrentOffset = 0.5f; // to force an initial update 1242 boolean mWaitingForUpdate; 1243 Choreographer mChoreographer; 1244 Interpolator mInterpolator; 1245 boolean mAnimating; 1246 long mAnimationStartTime; 1247 float mAnimationStartOffset; 1248 private final int ANIMATION_DURATION = 250; 1249 // Don't use all the wallpaper for parallax until you have at least this many pages 1250 private final int MIN_PARALLAX_PAGE_SPAN = 3; 1251 int mNumScreens; 1252 1253 public WallpaperOffsetInterpolator() { 1254 mChoreographer = Choreographer.getInstance(); 1255 mInterpolator = new DecelerateInterpolator(1.5f); 1256 } 1257 1258 @Override 1259 public void doFrame(long frameTimeNanos) { 1260 updateOffset(false); 1261 } 1262 1263 private void updateOffset(boolean force) { 1264 if (mWaitingForUpdate || force) { 1265 mWaitingForUpdate = false; 1266 if (computeScrollOffset() && mWindowToken != null) { 1267 try { 1268 mWallpaperManager.setWallpaperOffsets(mWindowToken, 1269 mWallpaperOffset.getCurrX(), 0.5f); 1270 setWallpaperOffsetSteps(); 1271 } catch (IllegalArgumentException e) { 1272 Log.e(TAG, "Error updating wallpaper offset: " + e); 1273 } 1274 } 1275 } 1276 } 1277 1278 public boolean computeScrollOffset() { 1279 final float oldOffset = mCurrentOffset; 1280 if (mAnimating) { 1281 long durationSinceAnimation = System.currentTimeMillis() - mAnimationStartTime; 1282 float t0 = durationSinceAnimation / (float) ANIMATION_DURATION; 1283 float t1 = mInterpolator.getInterpolation(t0); 1284 mCurrentOffset = mAnimationStartOffset + 1285 (mFinalOffset - mAnimationStartOffset) * t1; 1286 mAnimating = durationSinceAnimation < ANIMATION_DURATION; 1287 } else { 1288 mCurrentOffset = mFinalOffset; 1289 } 1290 1291 if (Math.abs(mCurrentOffset - mFinalOffset) > 0.0000001f) { 1292 scheduleUpdate(); 1293 } 1294 if (Math.abs(oldOffset - mCurrentOffset) > 0.0000001f) { 1295 return true; 1296 } 1297 return false; 1298 } 1299 1300 private float wallpaperOffsetForCurrentScroll() { 1301 if (getChildCount() <= 1) { 1302 return 0; 1303 } 1304 1305 // Exclude the leftmost page 1306 int emptyExtraPages = numEmptyScreensToIgnore(); 1307 int firstIndex = numCustomPages(); 1308 // Exclude the last extra empty screen (if we have > MIN_PARALLAX_PAGE_SPAN pages) 1309 int lastIndex = getChildCount() - 1 - emptyExtraPages; 1310 if (isLayoutRtl()) { 1311 int temp = firstIndex; 1312 firstIndex = lastIndex; 1313 lastIndex = temp; 1314 } 1315 1316 int firstPageScrollX = getScrollForPage(firstIndex); 1317 int scrollRange = getScrollForPage(lastIndex) - firstPageScrollX; 1318 if (scrollRange == 0) { 1319 return 0; 1320 } else { 1321 // TODO: do different behavior if it's a live wallpaper? 1322 // Sometimes the left parameter of the pages is animated during a layout transition; 1323 // this parameter offsets it to keep the wallpaper from animating as well 1324 int adjustedScroll = 1325 getScrollX() - firstPageScrollX - getLayoutTransitionOffsetForPage(0); 1326 float offset = Math.min(1, adjustedScroll / (float) scrollRange); 1327 offset = Math.max(0, offset); 1328 // Don't use up all the wallpaper parallax until you have at least 1329 // MIN_PARALLAX_PAGE_SPAN pages 1330 int numScrollingPages = getNumScreensExcludingEmptyAndCustom(); 1331 int parallaxPageSpan = Math.max(MIN_PARALLAX_PAGE_SPAN, numScrollingPages - 1); 1332 // On RTL devices, push the wallpaper offset to the right if we don't have enough 1333 // pages (ie if numScrollingPages < MIN_PARALLAX_PAGE_SPAN) 1334 int padding = isLayoutRtl() ? parallaxPageSpan - numScrollingPages + 1 : 0; 1335 return offset * (padding + numScrollingPages - 1) / parallaxPageSpan; 1336 } 1337 } 1338 1339 private int numEmptyScreensToIgnore() { 1340 int numScrollingPages = getChildCount() - numCustomPages(); 1341 if (numScrollingPages >= MIN_PARALLAX_PAGE_SPAN && hasExtraEmptyScreen()) { 1342 return 1; 1343 } else { 1344 return 0; 1345 } 1346 } 1347 1348 private int getNumScreensExcludingEmptyAndCustom() { 1349 int numScrollingPages = getChildCount() - numEmptyScreensToIgnore() - numCustomPages(); 1350 return numScrollingPages; 1351 } 1352 1353 public void syncWithScroll() { 1354 float offset = wallpaperOffsetForCurrentScroll(); 1355 mWallpaperOffset.setFinalX(offset); 1356 updateOffset(true); 1357 } 1358 1359 public float getCurrX() { 1360 return mCurrentOffset; 1361 } 1362 1363 public float getFinalX() { 1364 return mFinalOffset; 1365 } 1366 1367 private void animateToFinal() { 1368 mAnimating = true; 1369 mAnimationStartOffset = mCurrentOffset; 1370 mAnimationStartTime = System.currentTimeMillis(); 1371 } 1372 1373 private void setWallpaperOffsetSteps() { 1374 // Set wallpaper offset steps (1 / (number of screens - 1)) 1375 mWallpaperManager.setWallpaperOffsetSteps(1.0f / (getChildCount() - 1), 1.0f); 1376 } 1377 1378 public void setFinalX(float x) { 1379 scheduleUpdate(); 1380 mFinalOffset = Math.max(0f, Math.min(x, 1.0f)); 1381 if (getNumScreensExcludingEmptyAndCustom() != mNumScreens) { 1382 if (mNumScreens > 0) { 1383 // Don't animate if we're going from 0 screens 1384 animateToFinal(); 1385 } 1386 mNumScreens = getNumScreensExcludingEmptyAndCustom(); 1387 } 1388 } 1389 1390 private void scheduleUpdate() { 1391 if (!mWaitingForUpdate) { 1392 mChoreographer.postFrameCallback(this); 1393 mWaitingForUpdate = true; 1394 } 1395 } 1396 1397 public void jumpToFinal() { 1398 mCurrentOffset = mFinalOffset; 1399 } 1400 } 1401 1402 @Override 1403 public void computeScroll() { 1404 super.computeScroll(); 1405 mWallpaperOffset.syncWithScroll(); 1406 } 1407 1408 void showOutlines() { 1409 if (!isSmall() && !mIsSwitchingState) { 1410 if (mChildrenOutlineFadeOutAnimation != null) mChildrenOutlineFadeOutAnimation.cancel(); 1411 if (mChildrenOutlineFadeInAnimation != null) mChildrenOutlineFadeInAnimation.cancel(); 1412 mChildrenOutlineFadeInAnimation = LauncherAnimUtils.ofFloat(this, "childrenOutlineAlpha", 1.0f); 1413 mChildrenOutlineFadeInAnimation.setDuration(CHILDREN_OUTLINE_FADE_IN_DURATION); 1414 mChildrenOutlineFadeInAnimation.start(); 1415 } 1416 } 1417 1418 void hideOutlines() { 1419 if (!isSmall() && !mIsSwitchingState) { 1420 if (mChildrenOutlineFadeInAnimation != null) mChildrenOutlineFadeInAnimation.cancel(); 1421 if (mChildrenOutlineFadeOutAnimation != null) mChildrenOutlineFadeOutAnimation.cancel(); 1422 mChildrenOutlineFadeOutAnimation = LauncherAnimUtils.ofFloat(this, "childrenOutlineAlpha", 0.0f); 1423 mChildrenOutlineFadeOutAnimation.setDuration(CHILDREN_OUTLINE_FADE_OUT_DURATION); 1424 mChildrenOutlineFadeOutAnimation.setStartDelay(CHILDREN_OUTLINE_FADE_OUT_DELAY); 1425 mChildrenOutlineFadeOutAnimation.start(); 1426 } 1427 } 1428 1429 public void showOutlinesTemporarily() { 1430 if (!mIsPageMoving && !isTouchActive()) { 1431 snapToPage(mCurrentPage); 1432 } 1433 } 1434 1435 public void setChildrenOutlineAlpha(float alpha) { 1436 mChildrenOutlineAlpha = alpha; 1437 for (int i = 0; i < getChildCount(); i++) { 1438 CellLayout cl = (CellLayout) getChildAt(i); 1439 cl.setBackgroundAlpha(alpha); 1440 } 1441 } 1442 1443 public float getChildrenOutlineAlpha() { 1444 return mChildrenOutlineAlpha; 1445 } 1446 1447 void disableBackground() { 1448 mDrawBackground = false; 1449 } 1450 void enableBackground() { 1451 mDrawBackground = true; 1452 } 1453 1454 private void animateBackgroundGradient(float finalAlpha, boolean animated) { 1455 if (mBackground == null) return; 1456 if (mBackgroundFadeInAnimation != null) { 1457 mBackgroundFadeInAnimation.cancel(); 1458 mBackgroundFadeInAnimation = null; 1459 } 1460 if (mBackgroundFadeOutAnimation != null) { 1461 mBackgroundFadeOutAnimation.cancel(); 1462 mBackgroundFadeOutAnimation = null; 1463 } 1464 float startAlpha = getBackgroundAlpha(); 1465 if (finalAlpha != startAlpha) { 1466 if (animated) { 1467 mBackgroundFadeOutAnimation = 1468 LauncherAnimUtils.ofFloat(this, startAlpha, finalAlpha); 1469 mBackgroundFadeOutAnimation.addUpdateListener(new AnimatorUpdateListener() { 1470 public void onAnimationUpdate(ValueAnimator animation) { 1471 setBackgroundAlpha(((Float) animation.getAnimatedValue()).floatValue()); 1472 } 1473 }); 1474 mBackgroundFadeOutAnimation.setInterpolator(new DecelerateInterpolator(1.5f)); 1475 mBackgroundFadeOutAnimation.setDuration(BACKGROUND_FADE_OUT_DURATION); 1476 mBackgroundFadeOutAnimation.start(); 1477 } else { 1478 setBackgroundAlpha(finalAlpha); 1479 } 1480 } 1481 } 1482 1483 public void setBackgroundAlpha(float alpha) { 1484 if (alpha != mBackgroundAlpha) { 1485 mBackgroundAlpha = alpha; 1486 invalidate(); 1487 } 1488 } 1489 1490 public float getBackgroundAlpha() { 1491 return mBackgroundAlpha; 1492 } 1493 1494 float backgroundAlphaInterpolator(float r) { 1495 float pivotA = 0.1f; 1496 float pivotB = 0.4f; 1497 if (r < pivotA) { 1498 return 0; 1499 } else if (r > pivotB) { 1500 return 1.0f; 1501 } else { 1502 return (r - pivotA)/(pivotB - pivotA); 1503 } 1504 } 1505 1506 private void updatePageAlphaValues(int screenCenter) { 1507 boolean isInOverscroll = mOverScrollX < 0 || mOverScrollX > mMaxScrollX; 1508 if (mWorkspaceFadeInAdjacentScreens && 1509 mState == State.NORMAL && 1510 !mIsSwitchingState && 1511 !isInOverscroll) { 1512 for (int i = numCustomPages(); i < getChildCount(); i++) { 1513 CellLayout child = (CellLayout) getChildAt(i); 1514 if (child != null) { 1515 float scrollProgress = getScrollProgress(screenCenter, child, i); 1516 float alpha = 1 - Math.abs(scrollProgress); 1517 child.getShortcutsAndWidgets().setAlpha(alpha); 1518 } 1519 } 1520 } 1521 } 1522 1523 private void setChildrenBackgroundAlphaMultipliers(float a) { 1524 for (int i = 0; i < getChildCount(); i++) { 1525 CellLayout child = (CellLayout) getChildAt(i); 1526 child.setBackgroundAlphaMultiplier(a); 1527 } 1528 } 1529 1530 public boolean hasCustomContent() { 1531 return (mScreenOrder.size() > 0 && mScreenOrder.get(0) == CUSTOM_CONTENT_SCREEN_ID); 1532 } 1533 1534 public int numCustomPages() { 1535 return hasCustomContent() ? 1 : 0; 1536 } 1537 1538 public boolean isOnOrMovingToCustomContent() { 1539 return hasCustomContent() && getNextPage() == 0; 1540 } 1541 1542 private void updateStateForCustomContent(int screenCenter) { 1543 float translationX = 0; 1544 float progress = 0; 1545 if (hasCustomContent()) { 1546 int index = mScreenOrder.indexOf(CUSTOM_CONTENT_SCREEN_ID); 1547 1548 int scrollDelta = getScrollX() - getScrollForPage(index) - 1549 getLayoutTransitionOffsetForPage(index); 1550 float scrollRange = getScrollForPage(index + 1) - getScrollForPage(index); 1551 translationX = scrollRange - scrollDelta; 1552 progress = (scrollRange - scrollDelta) / scrollRange; 1553 1554 if (isLayoutRtl()) { 1555 translationX = Math.min(0, translationX); 1556 } else { 1557 translationX = Math.max(0, translationX); 1558 } 1559 progress = Math.max(0, progress); 1560 } 1561 1562 if (Float.compare(progress, mLastCustomContentScrollProgress) == 0) return; 1563 1564 CellLayout cc = mWorkspaceScreens.get(CUSTOM_CONTENT_SCREEN_ID); 1565 if (progress > 0 && cc.getVisibility() != VISIBLE && !isSmall()) { 1566 cc.setVisibility(VISIBLE); 1567 } 1568 1569 mLastCustomContentScrollProgress = progress; 1570 1571 setBackgroundAlpha(progress * 0.8f); 1572 1573 if (mLauncher.getHotseat() != null) { 1574 mLauncher.getHotseat().setTranslationX(translationX); 1575 } 1576 1577 if (getPageIndicator() != null) { 1578 getPageIndicator().setTranslationX(translationX); 1579 } 1580 1581 if (mCustomContentCallbacks != null) { 1582 mCustomContentCallbacks.onScrollProgressChanged(progress); 1583 } 1584 } 1585 1586 @Override 1587 protected OnClickListener getPageIndicatorClickListener() { 1588 AccessibilityManager am = (AccessibilityManager) 1589 getContext().getSystemService(Context.ACCESSIBILITY_SERVICE); 1590 if (!am.isTouchExplorationEnabled()) { 1591 return null; 1592 } 1593 OnClickListener listener = new OnClickListener() { 1594 @Override 1595 public void onClick(View arg0) { 1596 enterOverviewMode(); 1597 } 1598 }; 1599 return listener; 1600 } 1601 1602 @Override 1603 protected void screenScrolled(int screenCenter) { 1604 final boolean isRtl = isLayoutRtl(); 1605 super.screenScrolled(screenCenter); 1606 1607 updatePageAlphaValues(screenCenter); 1608 updateStateForCustomContent(screenCenter); 1609 enableHwLayersOnVisiblePages(); 1610 1611 boolean shouldOverScroll = (mOverScrollX < 0 && (!hasCustomContent() || isLayoutRtl())) || 1612 (mOverScrollX > mMaxScrollX && (!hasCustomContent() || !isLayoutRtl())); 1613 1614 if (shouldOverScroll) { 1615 int index = 0; 1616 float pivotX = 0f; 1617 final float leftBiasedPivot = 0.25f; 1618 final float rightBiasedPivot = 0.75f; 1619 final int lowerIndex = 0; 1620 final int upperIndex = getChildCount() - 1; 1621 1622 final boolean isLeftPage = mOverScrollX < 0; 1623 index = (!isRtl && isLeftPage) || (isRtl && !isLeftPage) ? lowerIndex : upperIndex; 1624 pivotX = isLeftPage ? rightBiasedPivot : leftBiasedPivot; 1625 1626 CellLayout cl = (CellLayout) getChildAt(index); 1627 float scrollProgress = getScrollProgress(screenCenter, cl, index); 1628 cl.setOverScrollAmount(Math.abs(scrollProgress), isLeftPage); 1629 float rotation = -WORKSPACE_OVERSCROLL_ROTATION * scrollProgress; 1630 cl.setRotationY(rotation); 1631 1632 if (!mOverscrollTransformsSet || Float.compare(mLastOverscrollPivotX, pivotX) != 0) { 1633 mOverscrollTransformsSet = true; 1634 mLastOverscrollPivotX = pivotX; 1635 cl.setCameraDistance(mDensity * mCameraDistance); 1636 cl.setPivotX(cl.getMeasuredWidth() * pivotX); 1637 cl.setPivotY(cl.getMeasuredHeight() * 0.5f); 1638 cl.setOverscrollTransformsDirty(true); 1639 } 1640 } else { 1641 if (mOverscrollTransformsSet) { 1642 mOverscrollTransformsSet = false; 1643 ((CellLayout) getChildAt(0)).resetOverscrollTransforms(); 1644 ((CellLayout) getChildAt(getChildCount() - 1)).resetOverscrollTransforms(); 1645 } 1646 } 1647 } 1648 1649 @Override 1650 protected void overScroll(float amount) { 1651 acceleratedOverScroll(amount); 1652 } 1653 1654 protected void onAttachedToWindow() { 1655 super.onAttachedToWindow(); 1656 mWindowToken = getWindowToken(); 1657 computeScroll(); 1658 mDragController.setWindowToken(mWindowToken); 1659 } 1660 1661 protected void onDetachedFromWindow() { 1662 super.onDetachedFromWindow(); 1663 mWindowToken = null; 1664 } 1665 1666 protected void onResume() { 1667 if (getPageIndicator() != null) { 1668 // In case accessibility state has changed, we need to perform this on every 1669 // attach to window 1670 OnClickListener listener = getPageIndicatorClickListener(); 1671 if (listener != null) { 1672 getPageIndicator().setOnClickListener(listener); 1673 } 1674 } 1675 AccessibilityManager am = (AccessibilityManager) 1676 getContext().getSystemService(Context.ACCESSIBILITY_SERVICE); 1677 sAccessibilityEnabled = am.isEnabled(); 1678 } 1679 1680 @Override 1681 protected void onLayout(boolean changed, int left, int top, int right, int bottom) { 1682 if (mFirstLayout && mCurrentPage >= 0 && mCurrentPage < getChildCount()) { 1683 mWallpaperOffset.syncWithScroll(); 1684 mWallpaperOffset.jumpToFinal(); 1685 } 1686 super.onLayout(changed, left, top, right, bottom); 1687 } 1688 1689 @Override 1690 protected void onDraw(Canvas canvas) { 1691 // Draw the background gradient if necessary 1692 if (mBackground != null && mBackgroundAlpha > 0.0f && mDrawBackground) { 1693 int alpha = (int) (mBackgroundAlpha * 255); 1694 mBackground.setAlpha(alpha); 1695 mBackground.setBounds(getScrollX(), 0, getScrollX() + getMeasuredWidth(), 1696 getMeasuredHeight()); 1697 mBackground.draw(canvas); 1698 } 1699 1700 super.onDraw(canvas); 1701 1702 // Call back to LauncherModel to finish binding after the first draw 1703 post(mBindPages); 1704 } 1705 1706 boolean isDrawingBackgroundGradient() { 1707 return (mBackground != null && mBackgroundAlpha > 0.0f && mDrawBackground); 1708 } 1709 1710 @Override 1711 protected boolean onRequestFocusInDescendants(int direction, Rect previouslyFocusedRect) { 1712 if (!mLauncher.isAllAppsVisible()) { 1713 final Folder openFolder = getOpenFolder(); 1714 if (openFolder != null) { 1715 return openFolder.requestFocus(direction, previouslyFocusedRect); 1716 } else { 1717 return super.onRequestFocusInDescendants(direction, previouslyFocusedRect); 1718 } 1719 } 1720 return false; 1721 } 1722 1723 @Override 1724 public int getDescendantFocusability() { 1725 if (isSmall()) { 1726 return ViewGroup.FOCUS_BLOCK_DESCENDANTS; 1727 } 1728 return super.getDescendantFocusability(); 1729 } 1730 1731 @Override 1732 public void addFocusables(ArrayList<View> views, int direction, int focusableMode) { 1733 if (!mLauncher.isAllAppsVisible()) { 1734 final Folder openFolder = getOpenFolder(); 1735 if (openFolder != null) { 1736 openFolder.addFocusables(views, direction); 1737 } else { 1738 super.addFocusables(views, direction, focusableMode); 1739 } 1740 } 1741 } 1742 1743 public boolean isSmall() { 1744 return mState == State.SMALL || mState == State.SPRING_LOADED || mState == State.OVERVIEW; 1745 } 1746 1747 void enableChildrenCache(int fromPage, int toPage) { 1748 if (fromPage > toPage) { 1749 final int temp = fromPage; 1750 fromPage = toPage; 1751 toPage = temp; 1752 } 1753 1754 final int screenCount = getChildCount(); 1755 1756 fromPage = Math.max(fromPage, 0); 1757 toPage = Math.min(toPage, screenCount - 1); 1758 1759 for (int i = fromPage; i <= toPage; i++) { 1760 final CellLayout layout = (CellLayout) getChildAt(i); 1761 layout.setChildrenDrawnWithCacheEnabled(true); 1762 layout.setChildrenDrawingCacheEnabled(true); 1763 } 1764 } 1765 1766 void clearChildrenCache() { 1767 final int screenCount = getChildCount(); 1768 for (int i = 0; i < screenCount; i++) { 1769 final CellLayout layout = (CellLayout) getChildAt(i); 1770 layout.setChildrenDrawnWithCacheEnabled(false); 1771 // In software mode, we don't want the items to continue to be drawn into bitmaps 1772 if (!isHardwareAccelerated()) { 1773 layout.setChildrenDrawingCacheEnabled(false); 1774 } 1775 } 1776 } 1777 1778 private void updateChildrenLayersEnabled(boolean force) { 1779 boolean small = mState == State.SMALL || mState == State.OVERVIEW || mIsSwitchingState; 1780 boolean enableChildrenLayers = force || small || mAnimatingViewIntoPlace || isPageMoving(); 1781 1782 if (enableChildrenLayers != mChildrenLayersEnabled) { 1783 mChildrenLayersEnabled = enableChildrenLayers; 1784 if (mChildrenLayersEnabled) { 1785 enableHwLayersOnVisiblePages(); 1786 } else { 1787 for (int i = 0; i < getPageCount(); i++) { 1788 final CellLayout cl = (CellLayout) getChildAt(i); 1789 cl.enableHardwareLayer(false); 1790 } 1791 } 1792 } 1793 } 1794 1795 private void enableHwLayersOnVisiblePages() { 1796 if (mChildrenLayersEnabled) { 1797 final int screenCount = getChildCount(); 1798 getVisiblePages(mTempVisiblePagesRange); 1799 int leftScreen = mTempVisiblePagesRange[0]; 1800 int rightScreen = mTempVisiblePagesRange[1]; 1801 if (leftScreen == rightScreen) { 1802 // make sure we're caching at least two pages always 1803 if (rightScreen < screenCount - 1) { 1804 rightScreen++; 1805 } else if (leftScreen > 0) { 1806 leftScreen--; 1807 } 1808 } 1809 1810 final CellLayout customScreen = mWorkspaceScreens.get(CUSTOM_CONTENT_SCREEN_ID); 1811 for (int i = 0; i < screenCount; i++) { 1812 final CellLayout layout = (CellLayout) getPageAt(i); 1813 1814 // enable layers between left and right screen inclusive, except for the 1815 // customScreen, which may animate its content during transitions. 1816 boolean enableLayer = layout != customScreen && 1817 leftScreen <= i && i <= rightScreen && shouldDrawChild(layout); 1818 layout.enableHardwareLayer(enableLayer); 1819 } 1820 } 1821 } 1822 1823 public void buildPageHardwareLayers() { 1824 // force layers to be enabled just for the call to buildLayer 1825 updateChildrenLayersEnabled(true); 1826 if (getWindowToken() != null) { 1827 final int childCount = getChildCount(); 1828 for (int i = 0; i < childCount; i++) { 1829 CellLayout cl = (CellLayout) getChildAt(i); 1830 cl.buildHardwareLayer(); 1831 } 1832 } 1833 updateChildrenLayersEnabled(false); 1834 } 1835 1836 protected void onWallpaperTap(MotionEvent ev) { 1837 final int[] position = mTempCell; 1838 getLocationOnScreen(position); 1839 1840 int pointerIndex = ev.getActionIndex(); 1841 position[0] += (int) ev.getX(pointerIndex); 1842 position[1] += (int) ev.getY(pointerIndex); 1843 1844 mWallpaperManager.sendWallpaperCommand(getWindowToken(), 1845 ev.getAction() == MotionEvent.ACTION_UP 1846 ? WallpaperManager.COMMAND_TAP : WallpaperManager.COMMAND_SECONDARY_TAP, 1847 position[0], position[1], 0, null); 1848 } 1849 1850 /* 1851 * This interpolator emulates the rate at which the perceived scale of an object changes 1852 * as its distance from a camera increases. When this interpolator is applied to a scale 1853 * animation on a view, it evokes the sense that the object is shrinking due to moving away 1854 * from the camera. 1855 */ 1856 static class ZInterpolator implements TimeInterpolator { 1857 private float focalLength; 1858 1859 public ZInterpolator(float foc) { 1860 focalLength = foc; 1861 } 1862 1863 public float getInterpolation(float input) { 1864 return (1.0f - focalLength / (focalLength + input)) / 1865 (1.0f - focalLength / (focalLength + 1.0f)); 1866 } 1867 } 1868 1869 /* 1870 * The exact reverse of ZInterpolator. 1871 */ 1872 static class InverseZInterpolator implements TimeInterpolator { 1873 private ZInterpolator zInterpolator; 1874 public InverseZInterpolator(float foc) { 1875 zInterpolator = new ZInterpolator(foc); 1876 } 1877 public float getInterpolation(float input) { 1878 return 1 - zInterpolator.getInterpolation(1 - input); 1879 } 1880 } 1881 1882 /* 1883 * ZInterpolator compounded with an ease-out. 1884 */ 1885 static class ZoomOutInterpolator implements TimeInterpolator { 1886 private final DecelerateInterpolator decelerate = new DecelerateInterpolator(0.75f); 1887 private final ZInterpolator zInterpolator = new ZInterpolator(0.13f); 1888 1889 public float getInterpolation(float input) { 1890 return decelerate.getInterpolation(zInterpolator.getInterpolation(input)); 1891 } 1892 } 1893 1894 /* 1895 * InvereZInterpolator compounded with an ease-out. 1896 */ 1897 static class ZoomInInterpolator implements TimeInterpolator { 1898 private final InverseZInterpolator inverseZInterpolator = new InverseZInterpolator(0.35f); 1899 private final DecelerateInterpolator decelerate = new DecelerateInterpolator(3.0f); 1900 1901 public float getInterpolation(float input) { 1902 return decelerate.getInterpolation(inverseZInterpolator.getInterpolation(input)); 1903 } 1904 } 1905 1906 private final ZoomInInterpolator mZoomInInterpolator = new ZoomInInterpolator(); 1907 1908 /* 1909 * 1910 * We call these methods (onDragStartedWithItemSpans/onDragStartedWithSize) whenever we 1911 * start a drag in Launcher, regardless of whether the drag has ever entered the Workspace 1912 * 1913 * These methods mark the appropriate pages as accepting drops (which alters their visual 1914 * appearance). 1915 * 1916 */ 1917 public void onDragStartedWithItem(View v) { 1918 final Canvas canvas = new Canvas(); 1919 1920 // The outline is used to visualize where the item will land if dropped 1921 mDragOutline = createDragOutline(v, canvas, DRAG_BITMAP_PADDING); 1922 } 1923 1924 public void onDragStartedWithItem(PendingAddItemInfo info, Bitmap b, boolean clipAlpha) { 1925 final Canvas canvas = new Canvas(); 1926 1927 int[] size = estimateItemSize(info.spanX, info.spanY, info, false); 1928 1929 // The outline is used to visualize where the item will land if dropped 1930 mDragOutline = createDragOutline(b, canvas, DRAG_BITMAP_PADDING, size[0], 1931 size[1], clipAlpha); 1932 } 1933 1934 public void exitWidgetResizeMode() { 1935 DragLayer dragLayer = mLauncher.getDragLayer(); 1936 dragLayer.clearAllResizeFrames(); 1937 } 1938 1939 private void initAnimationArrays() { 1940 final int childCount = getChildCount(); 1941 if (mLastChildCount == childCount) return; 1942 1943 mOldBackgroundAlphas = new float[childCount]; 1944 mOldAlphas = new float[childCount]; 1945 mNewBackgroundAlphas = new float[childCount]; 1946 mNewAlphas = new float[childCount]; 1947 } 1948 1949 Animator getChangeStateAnimation(final State state, boolean animated) { 1950 return getChangeStateAnimation(state, animated, 0, -1); 1951 } 1952 1953 @Override 1954 protected void getOverviewModePages(int[] range) { 1955 int start = numCustomPages(); 1956 int end = getChildCount() - 1; 1957 1958 range[0] = Math.max(0, Math.min(start, getChildCount() - 1)); 1959 range[1] = Math.max(0, end); 1960 } 1961 1962 protected void onStartReordering() { 1963 super.onStartReordering(); 1964 showOutlines(); 1965 // Reordering handles its own animations, disable the automatic ones. 1966 disableLayoutTransitions(); 1967 } 1968 1969 protected void onEndReordering() { 1970 super.onEndReordering(); 1971 1972 hideOutlines(); 1973 mScreenOrder.clear(); 1974 int count = getChildCount(); 1975 for (int i = 0; i < count; i++) { 1976 CellLayout cl = ((CellLayout) getChildAt(i)); 1977 mScreenOrder.add(getIdForScreen(cl)); 1978 } 1979 1980 mLauncher.getModel().updateWorkspaceScreenOrder(mLauncher, mScreenOrder); 1981 1982 // Re-enable auto layout transitions for page deletion. 1983 enableLayoutTransitions(); 1984 } 1985 1986 public boolean isInOverviewMode() { 1987 return mState == State.OVERVIEW; 1988 } 1989 1990 public boolean enterOverviewMode() { 1991 if (mTouchState != TOUCH_STATE_REST) { 1992 return false; 1993 } 1994 enableOverviewMode(true, -1, true); 1995 return true; 1996 } 1997 1998 public void exitOverviewMode(boolean animated) { 1999 exitOverviewMode(-1, animated); 2000 } 2001 2002 public void exitOverviewMode(int snapPage, boolean animated) { 2003 enableOverviewMode(false, snapPage, animated); 2004 } 2005 2006 private void enableOverviewMode(boolean enable, int snapPage, boolean animated) { 2007 State finalState = Workspace.State.OVERVIEW; 2008 if (!enable) { 2009 finalState = Workspace.State.NORMAL; 2010 } 2011 2012 Animator workspaceAnim = getChangeStateAnimation(finalState, animated, 0, snapPage); 2013 if (workspaceAnim != null) { 2014 onTransitionPrepare(); 2015 workspaceAnim.addListener(new AnimatorListenerAdapter() { 2016 @Override 2017 public void onAnimationEnd(Animator arg0) { 2018 onTransitionEnd(); 2019 } 2020 }); 2021 workspaceAnim.start(); 2022 } 2023 } 2024 2025 int getOverviewModeTranslationY() { 2026 LauncherAppState app = LauncherAppState.getInstance(); 2027 DeviceProfile grid = app.getDynamicGrid().getDeviceProfile(); 2028 Rect overviewBar = grid.getOverviewModeButtonBarRect(); 2029 2030 int availableHeight = getViewportHeight(); 2031 int scaledHeight = (int) (mOverviewModeShrinkFactor * getNormalChildHeight()); 2032 int offsetFromTopEdge = (availableHeight - scaledHeight) / 2; 2033 int offsetToCenterInOverview = (availableHeight - mInsets.top - overviewBar.height() 2034 - scaledHeight) / 2; 2035 2036 return -offsetFromTopEdge + mInsets.top + offsetToCenterInOverview; 2037 } 2038 2039 boolean shouldVoiceButtonProxyBeVisible() { 2040 if (isOnOrMovingToCustomContent()) { 2041 return false; 2042 } 2043 if (mState != State.NORMAL) { 2044 return false; 2045 } 2046 return true; 2047 } 2048 2049 public void updateInteractionForState() { 2050 if (mState != State.NORMAL) { 2051 mLauncher.onInteractionBegin(); 2052 } else { 2053 mLauncher.onInteractionEnd(); 2054 } 2055 } 2056 2057 private void setState(State state) { 2058 mState = state; 2059 updateInteractionForState(); 2060 updateAccessibilityFlags(); 2061 } 2062 2063 private void updateAccessibilityFlags() { 2064 int accessible = mState == State.NORMAL ? 2065 ViewCompat.IMPORTANT_FOR_ACCESSIBILITY_YES : 2066 ViewCompat.IMPORTANT_FOR_ACCESSIBILITY_NO_HIDE_DESCENDANTS; 2067 setImportantForAccessibility(accessible); 2068 } 2069 2070 Animator getChangeStateAnimation(final State state, boolean animated, int delay, int snapPage) { 2071 if (mState == state) { 2072 return null; 2073 } 2074 2075 // Initialize animation arrays for the first time if necessary 2076 initAnimationArrays(); 2077 2078 AnimatorSet anim = animated ? LauncherAnimUtils.createAnimatorSet() : null; 2079 2080 final State oldState = mState; 2081 final boolean oldStateIsNormal = (oldState == State.NORMAL); 2082 final boolean oldStateIsSpringLoaded = (oldState == State.SPRING_LOADED); 2083 final boolean oldStateIsSmall = (oldState == State.SMALL); 2084 final boolean oldStateIsOverview = (oldState == State.OVERVIEW); 2085 setState(state); 2086 final boolean stateIsNormal = (state == State.NORMAL); 2087 final boolean stateIsSpringLoaded = (state == State.SPRING_LOADED); 2088 final boolean stateIsSmall = (state == State.SMALL); 2089 final boolean stateIsOverview = (state == State.OVERVIEW); 2090 float finalBackgroundAlpha = (stateIsSpringLoaded || stateIsOverview) ? 1.0f : 0f; 2091 float finalHotseatAndPageIndicatorAlpha = (stateIsOverview || stateIsSmall) ? 0f : 1f; 2092 float finalOverviewPanelAlpha = stateIsOverview ? 1f : 0f; 2093 float finalSearchBarAlpha = !stateIsNormal ? 0f : 1f; 2094 float finalWorkspaceTranslationY = stateIsOverview ? getOverviewModeTranslationY() : 0; 2095 2096 boolean workspaceToAllApps = (oldStateIsNormal && stateIsSmall); 2097 boolean allAppsToWorkspace = (oldStateIsSmall && stateIsNormal); 2098 boolean workspaceToOverview = (oldStateIsNormal && stateIsOverview); 2099 boolean overviewToWorkspace = (oldStateIsOverview && stateIsNormal); 2100 2101 mNewScale = 1.0f; 2102 2103 if (oldStateIsOverview) { 2104 disableFreeScroll(snapPage); 2105 } else if (stateIsOverview) { 2106 enableFreeScroll(); 2107 } 2108 2109 if (state != State.NORMAL) { 2110 if (stateIsSpringLoaded) { 2111 mNewScale = mSpringLoadedShrinkFactor; 2112 } else if (stateIsOverview) { 2113 mNewScale = mOverviewModeShrinkFactor; 2114 } else if (stateIsSmall){ 2115 mNewScale = mOverviewModeShrinkFactor - 0.3f; 2116 } 2117 if (workspaceToAllApps) { 2118 updateChildrenLayersEnabled(false); 2119 } 2120 } 2121 2122 final int duration; 2123 if (workspaceToAllApps) { 2124 duration = getResources().getInteger(R.integer.config_workspaceUnshrinkTime); 2125 } else if (workspaceToOverview || overviewToWorkspace) { 2126 duration = getResources().getInteger(R.integer.config_overviewTransitionTime); 2127 } else { 2128 duration = getResources().getInteger(R.integer.config_appsCustomizeWorkspaceShrinkTime); 2129 } 2130 2131 for (int i = 0; i < getChildCount(); i++) { 2132 final CellLayout cl = (CellLayout) getChildAt(i); 2133 boolean isCurrentPage = (i == getNextPage()); 2134 float initialAlpha = cl.getShortcutsAndWidgets().getAlpha(); 2135 float finalAlpha; 2136 if (stateIsSmall) { 2137 finalAlpha = 0f; 2138 } else if (stateIsNormal && mWorkspaceFadeInAdjacentScreens) { 2139 finalAlpha = i == getNextPage() ? 1f : 0f; 2140 } else { 2141 finalAlpha = 1f; 2142 } 2143 2144 // If we are animating to/from the small state, then hide the side pages and fade the 2145 // current page in 2146 if (!mIsSwitchingState) { 2147 if (workspaceToAllApps || allAppsToWorkspace) { 2148 if (allAppsToWorkspace && isCurrentPage) { 2149 initialAlpha = 0f; 2150 } else if (!isCurrentPage) { 2151 initialAlpha = finalAlpha = 0f; 2152 } 2153 cl.setShortcutAndWidgetAlpha(initialAlpha); 2154 } 2155 } 2156 2157 mOldAlphas[i] = initialAlpha; 2158 mNewAlphas[i] = finalAlpha; 2159 if (animated) { 2160 mOldBackgroundAlphas[i] = cl.getBackgroundAlpha(); 2161 mNewBackgroundAlphas[i] = finalBackgroundAlpha; 2162 } else { 2163 cl.setBackgroundAlpha(finalBackgroundAlpha); 2164 cl.setShortcutAndWidgetAlpha(finalAlpha); 2165 } 2166 } 2167 2168 final View searchBar = mLauncher.getQsbBar(); 2169 final View overviewPanel = mLauncher.getOverviewPanel(); 2170 final View hotseat = mLauncher.getHotseat(); 2171 if (animated) { 2172 anim.setDuration(duration); 2173 LauncherViewPropertyAnimator scale = new LauncherViewPropertyAnimator(this); 2174 scale.scaleX(mNewScale) 2175 .scaleY(mNewScale) 2176 .translationY(finalWorkspaceTranslationY) 2177 .setInterpolator(mZoomInInterpolator); 2178 anim.play(scale); 2179 for (int index = 0; index < getChildCount(); index++) { 2180 final int i = index; 2181 final CellLayout cl = (CellLayout) getChildAt(i); 2182 float currentAlpha = cl.getShortcutsAndWidgets().getAlpha(); 2183 if (mOldAlphas[i] == 0 && mNewAlphas[i] == 0) { 2184 cl.setBackgroundAlpha(mNewBackgroundAlphas[i]); 2185 cl.setShortcutAndWidgetAlpha(mNewAlphas[i]); 2186 } else { 2187 if (mOldAlphas[i] != mNewAlphas[i] || currentAlpha != mNewAlphas[i]) { 2188 LauncherViewPropertyAnimator alphaAnim = 2189 new LauncherViewPropertyAnimator(cl.getShortcutsAndWidgets()); 2190 alphaAnim.alpha(mNewAlphas[i]) 2191 .setInterpolator(mZoomInInterpolator); 2192 anim.play(alphaAnim); 2193 } 2194 if (mOldBackgroundAlphas[i] != 0 || 2195 mNewBackgroundAlphas[i] != 0) { 2196 ValueAnimator bgAnim = 2197 LauncherAnimUtils.ofFloat(cl, 0f, 1f); 2198 bgAnim.setInterpolator(mZoomInInterpolator); 2199 bgAnim.addUpdateListener(new LauncherAnimatorUpdateListener() { 2200 public void onAnimationUpdate(float a, float b) { 2201 cl.setBackgroundAlpha( 2202 a * mOldBackgroundAlphas[i] + 2203 b * mNewBackgroundAlphas[i]); 2204 } 2205 }); 2206 anim.play(bgAnim); 2207 } 2208 } 2209 } 2210 ObjectAnimator pageIndicatorAlpha = null; 2211 if (getPageIndicator() != null) { 2212 pageIndicatorAlpha = ObjectAnimator.ofFloat(getPageIndicator(), "alpha", 2213 finalHotseatAndPageIndicatorAlpha); 2214 } 2215 ObjectAnimator hotseatAlpha = ObjectAnimator.ofFloat(hotseat, "alpha", 2216 finalHotseatAndPageIndicatorAlpha); 2217 ObjectAnimator searchBarAlpha = ObjectAnimator.ofFloat(searchBar, 2218 "alpha", finalSearchBarAlpha); 2219 ObjectAnimator overviewPanelAlpha = ObjectAnimator.ofFloat(overviewPanel, 2220 "alpha", finalOverviewPanelAlpha); 2221 2222 overviewPanelAlpha.addListener(new AlphaUpdateListener(overviewPanel)); 2223 hotseatAlpha.addListener(new AlphaUpdateListener(hotseat)); 2224 searchBarAlpha.addListener(new AlphaUpdateListener(searchBar)); 2225 2226 if (workspaceToOverview) { 2227 hotseatAlpha.setInterpolator(new DecelerateInterpolator(2)); 2228 } else if (overviewToWorkspace) { 2229 overviewPanelAlpha.setInterpolator(new DecelerateInterpolator(2)); 2230 } 2231 2232 if (getPageIndicator() != null) { 2233 pageIndicatorAlpha.addListener(new AlphaUpdateListener(getPageIndicator())); 2234 } 2235 2236 anim.play(overviewPanelAlpha); 2237 anim.play(hotseatAlpha); 2238 anim.play(searchBarAlpha); 2239 anim.play(pageIndicatorAlpha); 2240 anim.setStartDelay(delay); 2241 } else { 2242 overviewPanel.setAlpha(finalOverviewPanelAlpha); 2243 AlphaUpdateListener.updateVisibility(overviewPanel); 2244 hotseat.setAlpha(finalHotseatAndPageIndicatorAlpha); 2245 AlphaUpdateListener.updateVisibility(hotseat); 2246 if (getPageIndicator() != null) { 2247 getPageIndicator().setAlpha(finalHotseatAndPageIndicatorAlpha); 2248 AlphaUpdateListener.updateVisibility(getPageIndicator()); 2249 } 2250 searchBar.setAlpha(finalSearchBarAlpha); 2251 AlphaUpdateListener.updateVisibility(searchBar); 2252 updateCustomContentVisibility(); 2253 setScaleX(mNewScale); 2254 setScaleY(mNewScale); 2255 setTranslationY(finalWorkspaceTranslationY); 2256 } 2257 mLauncher.updateVoiceButtonProxyVisible(false); 2258 2259 if (stateIsSpringLoaded) { 2260 // Right now we're covered by Apps Customize 2261 // Show the background gradient immediately, so the gradient will 2262 // be showing once AppsCustomize disappears 2263 animateBackgroundGradient(getResources().getInteger( 2264 R.integer.config_appsCustomizeSpringLoadedBgAlpha) / 100f, false); 2265 } else if (stateIsOverview) { 2266 animateBackgroundGradient(getResources().getInteger( 2267 R.integer.config_appsCustomizeSpringLoadedBgAlpha) / 100f, true); 2268 } else { 2269 // Fade the background gradient away 2270 animateBackgroundGradient(0f, animated); 2271 } 2272 return anim; 2273 } 2274 2275 static class AlphaUpdateListener implements AnimatorUpdateListener, AnimatorListener { 2276 View view; 2277 public AlphaUpdateListener(View v) { 2278 view = v; 2279 } 2280 2281 @Override 2282 public void onAnimationUpdate(ValueAnimator arg0) { 2283 updateVisibility(view); 2284 } 2285 2286 public static void updateVisibility(View view) { 2287 // We want to avoid the extra layout pass by setting the views to GONE unless 2288 // accessibility is on, in which case not setting them to GONE causes a glitch. 2289 int invisibleState = sAccessibilityEnabled ? GONE : INVISIBLE; 2290 if (view.getAlpha() < ALPHA_CUTOFF_THRESHOLD && view.getVisibility() != invisibleState) { 2291 view.setVisibility(invisibleState); 2292 } else if (view.getAlpha() > ALPHA_CUTOFF_THRESHOLD 2293 && view.getVisibility() != VISIBLE) { 2294 view.setVisibility(VISIBLE); 2295 } 2296 } 2297 2298 @Override 2299 public void onAnimationCancel(Animator arg0) { 2300 } 2301 2302 @Override 2303 public void onAnimationEnd(Animator arg0) { 2304 updateVisibility(view); 2305 } 2306 2307 @Override 2308 public void onAnimationRepeat(Animator arg0) { 2309 } 2310 2311 @Override 2312 public void onAnimationStart(Animator arg0) { 2313 // We want the views to be visible for animation, so fade-in/out is visible 2314 view.setVisibility(VISIBLE); 2315 } 2316 } 2317 2318 @Override 2319 public void onLauncherTransitionPrepare(Launcher l, boolean animated, boolean toWorkspace) { 2320 onTransitionPrepare(); 2321 } 2322 2323 @Override 2324 public void onLauncherTransitionStart(Launcher l, boolean animated, boolean toWorkspace) { 2325 } 2326 2327 @Override 2328 public void onLauncherTransitionStep(Launcher l, float t) { 2329 mTransitionProgress = t; 2330 } 2331 2332 @Override 2333 public void onLauncherTransitionEnd(Launcher l, boolean animated, boolean toWorkspace) { 2334 onTransitionEnd(); 2335 } 2336 2337 private void onTransitionPrepare() { 2338 mIsSwitchingState = true; 2339 2340 // Invalidate here to ensure that the pages are rendered during the state change transition. 2341 invalidate(); 2342 2343 updateChildrenLayersEnabled(false); 2344 hideCustomContentIfNecessary(); 2345 } 2346 2347 void updateCustomContentVisibility() { 2348 int visibility = mState == Workspace.State.NORMAL ? VISIBLE : INVISIBLE; 2349 if (hasCustomContent()) { 2350 mWorkspaceScreens.get(CUSTOM_CONTENT_SCREEN_ID).setVisibility(visibility); 2351 } 2352 } 2353 2354 void showCustomContentIfNecessary() { 2355 boolean show = mState == Workspace.State.NORMAL; 2356 if (show && hasCustomContent()) { 2357 mWorkspaceScreens.get(CUSTOM_CONTENT_SCREEN_ID).setVisibility(VISIBLE); 2358 } 2359 } 2360 2361 void hideCustomContentIfNecessary() { 2362 boolean hide = mState != Workspace.State.NORMAL; 2363 if (hide && hasCustomContent()) { 2364 mWorkspaceScreens.get(CUSTOM_CONTENT_SCREEN_ID).setVisibility(INVISIBLE); 2365 } 2366 } 2367 2368 private void onTransitionEnd() { 2369 mIsSwitchingState = false; 2370 updateChildrenLayersEnabled(false); 2371 // The code in getChangeStateAnimation to determine initialAlpha and finalAlpha will ensure 2372 // ensure that only the current page is visible during (and subsequently, after) the 2373 // transition animation. If fade adjacent pages is disabled, then re-enable the page 2374 // visibility after the transition animation. 2375 if (!mWorkspaceFadeInAdjacentScreens) { 2376 for (int i = 0; i < getChildCount(); i++) { 2377 final CellLayout cl = (CellLayout) getChildAt(i); 2378 cl.setShortcutAndWidgetAlpha(1f); 2379 } 2380 } 2381 showCustomContentIfNecessary(); 2382 } 2383 2384 @Override 2385 public View getContent() { 2386 return this; 2387 } 2388 2389 /** 2390 * Draw the View v into the given Canvas. 2391 * 2392 * @param v the view to draw 2393 * @param destCanvas the canvas to draw on 2394 * @param padding the horizontal and vertical padding to use when drawing 2395 */ 2396 private void drawDragView(View v, Canvas destCanvas, int padding, boolean pruneToDrawable) { 2397 final Rect clipRect = mTempRect; 2398 v.getDrawingRect(clipRect); 2399 2400 boolean textVisible = false; 2401 2402 destCanvas.save(); 2403 if (v instanceof TextView && pruneToDrawable) { 2404 Drawable d = ((TextView) v).getCompoundDrawables()[1]; 2405 clipRect.set(0, 0, d.getIntrinsicWidth() + padding, d.getIntrinsicHeight() + padding); 2406 destCanvas.translate(padding / 2, padding / 2); 2407 d.draw(destCanvas); 2408 } else { 2409 if (v instanceof FolderIcon) { 2410 // For FolderIcons the text can bleed into the icon area, and so we need to 2411 // hide the text completely (which can't be achieved by clipping). 2412 if (((FolderIcon) v).getTextVisible()) { 2413 ((FolderIcon) v).setTextVisible(false); 2414 textVisible = true; 2415 } 2416 } else if (v instanceof BubbleTextView) { 2417 final BubbleTextView tv = (BubbleTextView) v; 2418 clipRect.bottom = tv.getExtendedPaddingTop() - (int) BubbleTextView.PADDING_V + 2419 tv.getLayout().getLineTop(0); 2420 } else if (v instanceof TextView) { 2421 final TextView tv = (TextView) v; 2422 clipRect.bottom = tv.getExtendedPaddingTop() - tv.getCompoundDrawablePadding() + 2423 tv.getLayout().getLineTop(0); 2424 } 2425 destCanvas.translate(-v.getScrollX() + padding / 2, -v.getScrollY() + padding / 2); 2426 destCanvas.clipRect(clipRect, Op.REPLACE); 2427 v.draw(destCanvas); 2428 2429 // Restore text visibility of FolderIcon if necessary 2430 if (textVisible) { 2431 ((FolderIcon) v).setTextVisible(true); 2432 } 2433 } 2434 destCanvas.restore(); 2435 } 2436 2437 /** 2438 * Returns a new bitmap to show when the given View is being dragged around. 2439 * Responsibility for the bitmap is transferred to the caller. 2440 */ 2441 public Bitmap createDragBitmap(View v, Canvas canvas, int padding) { 2442 Bitmap b; 2443 2444 if (v instanceof TextView) { 2445 Drawable d = ((TextView) v).getCompoundDrawables()[1]; 2446 b = Bitmap.createBitmap(d.getIntrinsicWidth() + padding, 2447 d.getIntrinsicHeight() + padding, Bitmap.Config.ARGB_8888); 2448 } else { 2449 b = Bitmap.createBitmap( 2450 v.getWidth() + padding, v.getHeight() + padding, Bitmap.Config.ARGB_8888); 2451 } 2452 2453 canvas.setBitmap(b); 2454 drawDragView(v, canvas, padding, true); 2455 canvas.setBitmap(null); 2456 2457 return b; 2458 } 2459 2460 /** 2461 * Returns a new bitmap to be used as the object outline, e.g. to visualize the drop location. 2462 * Responsibility for the bitmap is transferred to the caller. 2463 */ 2464 private Bitmap createDragOutline(View v, Canvas canvas, int padding) { 2465 final int outlineColor = getResources().getColor(R.color.outline_color); 2466 final Bitmap b = Bitmap.createBitmap( 2467 v.getWidth() + padding, v.getHeight() + padding, Bitmap.Config.ARGB_8888); 2468 2469 canvas.setBitmap(b); 2470 drawDragView(v, canvas, padding, true); 2471 mOutlineHelper.applyMediumExpensiveOutlineWithBlur(b, canvas, outlineColor, outlineColor); 2472 canvas.setBitmap(null); 2473 return b; 2474 } 2475 2476 /** 2477 * Returns a new bitmap to be used as the object outline, e.g. to visualize the drop location. 2478 * Responsibility for the bitmap is transferred to the caller. 2479 */ 2480 private Bitmap createDragOutline(Bitmap orig, Canvas canvas, int padding, int w, int h, 2481 boolean clipAlpha) { 2482 final int outlineColor = getResources().getColor(R.color.outline_color); 2483 final Bitmap b = Bitmap.createBitmap(w, h, Bitmap.Config.ARGB_8888); 2484 canvas.setBitmap(b); 2485 2486 Rect src = new Rect(0, 0, orig.getWidth(), orig.getHeight()); 2487 float scaleFactor = Math.min((w - padding) / (float) orig.getWidth(), 2488 (h - padding) / (float) orig.getHeight()); 2489 int scaledWidth = (int) (scaleFactor * orig.getWidth()); 2490 int scaledHeight = (int) (scaleFactor * orig.getHeight()); 2491 Rect dst = new Rect(0, 0, scaledWidth, scaledHeight); 2492 2493 // center the image 2494 dst.offset((w - scaledWidth) / 2, (h - scaledHeight) / 2); 2495 2496 canvas.drawBitmap(orig, src, dst, null); 2497 mOutlineHelper.applyMediumExpensiveOutlineWithBlur(b, canvas, outlineColor, outlineColor, 2498 clipAlpha); 2499 canvas.setBitmap(null); 2500 2501 return b; 2502 } 2503 2504 void startDrag(CellLayout.CellInfo cellInfo) { 2505 View child = cellInfo.cell; 2506 2507 // Make sure the drag was started by a long press as opposed to a long click. 2508 if (!child.isInTouchMode()) { 2509 return; 2510 } 2511 2512 mDragInfo = cellInfo; 2513 child.setVisibility(INVISIBLE); 2514 CellLayout layout = (CellLayout) child.getParent().getParent(); 2515 layout.prepareChildForDrag(child); 2516 2517 child.clearFocus(); 2518 child.setPressed(false); 2519 2520 final Canvas canvas = new Canvas(); 2521 2522 // The outline is used to visualize where the item will land if dropped 2523 mDragOutline = createDragOutline(child, canvas, DRAG_BITMAP_PADDING); 2524 beginDragShared(child, this); 2525 } 2526 2527 public void beginDragShared(View child, DragSource source) { 2528 // The drag bitmap follows the touch point around on the screen 2529 final Bitmap b = createDragBitmap(child, new Canvas(), DRAG_BITMAP_PADDING); 2530 2531 final int bmpWidth = b.getWidth(); 2532 final int bmpHeight = b.getHeight(); 2533 2534 float scale = mLauncher.getDragLayer().getLocationInDragLayer(child, mTempXY); 2535 int dragLayerX = 2536 Math.round(mTempXY[0] - (bmpWidth - scale * child.getWidth()) / 2); 2537 int dragLayerY = 2538 Math.round(mTempXY[1] - (bmpHeight - scale * bmpHeight) / 2 2539 - DRAG_BITMAP_PADDING / 2); 2540 2541 LauncherAppState app = LauncherAppState.getInstance(); 2542 DeviceProfile grid = app.getDynamicGrid().getDeviceProfile(); 2543 Point dragVisualizeOffset = null; 2544 Rect dragRect = null; 2545 if (child instanceof BubbleTextView || child instanceof PagedViewIcon) { 2546 int iconSize = grid.iconSizePx; 2547 int top = child.getPaddingTop(); 2548 int left = (bmpWidth - iconSize) / 2; 2549 int right = left + iconSize; 2550 int bottom = top + iconSize; 2551 dragLayerY += top; 2552 // Note: The drag region is used to calculate drag layer offsets, but the 2553 // dragVisualizeOffset in addition to the dragRect (the size) to position the outline. 2554 dragVisualizeOffset = new Point(-DRAG_BITMAP_PADDING / 2, DRAG_BITMAP_PADDING / 2); 2555 dragRect = new Rect(left, top, right, bottom); 2556 } else if (child instanceof FolderIcon) { 2557 int previewSize = grid.folderIconSizePx; 2558 dragRect = new Rect(0, child.getPaddingTop(), child.getWidth(), previewSize); 2559 } 2560 2561 // Clear the pressed state if necessary 2562 if (child instanceof BubbleTextView) { 2563 BubbleTextView icon = (BubbleTextView) child; 2564 icon.clearPressedOrFocusedBackground(); 2565 } 2566 2567 mDragController.startDrag(b, dragLayerX, dragLayerY, source, child.getTag(), 2568 DragController.DRAG_ACTION_MOVE, dragVisualizeOffset, dragRect, scale); 2569 2570 if (child.getParent() instanceof ShortcutAndWidgetContainer) { 2571 mDragSourceInternal = (ShortcutAndWidgetContainer) child.getParent(); 2572 } 2573 2574 b.recycle(); 2575 } 2576 2577 void addApplicationShortcut(ShortcutInfo info, CellLayout target, long container, long screenId, 2578 int cellX, int cellY, boolean insertAtFirst, int intersectX, int intersectY) { 2579 View view = mLauncher.createShortcut(R.layout.application, target, (ShortcutInfo) info); 2580 2581 final int[] cellXY = new int[2]; 2582 target.findCellForSpanThatIntersects(cellXY, 1, 1, intersectX, intersectY); 2583 addInScreen(view, container, screenId, cellXY[0], cellXY[1], 1, 1, insertAtFirst); 2584 2585 LauncherModel.addOrMoveItemInDatabase(mLauncher, info, container, screenId, cellXY[0], 2586 cellXY[1]); 2587 } 2588 2589 public boolean transitionStateShouldAllowDrop() { 2590 return ((!isSwitchingState() || mTransitionProgress > 0.5f) && mState != State.SMALL); 2591 } 2592 2593 /** 2594 * {@inheritDoc} 2595 */ 2596 public boolean acceptDrop(DragObject d) { 2597 // If it's an external drop (e.g. from All Apps), check if it should be accepted 2598 CellLayout dropTargetLayout = mDropToLayout; 2599 if (d.dragSource != this) { 2600 // Don't accept the drop if we're not over a screen at time of drop 2601 if (dropTargetLayout == null) { 2602 return false; 2603 } 2604 if (!transitionStateShouldAllowDrop()) return false; 2605 2606 mDragViewVisualCenter = getDragViewVisualCenter(d.x, d.y, d.xOffset, d.yOffset, 2607 d.dragView, mDragViewVisualCenter); 2608 2609 // We want the point to be mapped to the dragTarget. 2610 if (mLauncher.isHotseatLayout(dropTargetLayout)) { 2611 mapPointFromSelfToHotseatLayout(mLauncher.getHotseat(), mDragViewVisualCenter); 2612 } else { 2613 mapPointFromSelfToChild(dropTargetLayout, mDragViewVisualCenter, null); 2614 } 2615 2616 int spanX = 1; 2617 int spanY = 1; 2618 if (mDragInfo != null) { 2619 final CellLayout.CellInfo dragCellInfo = mDragInfo; 2620 spanX = dragCellInfo.spanX; 2621 spanY = dragCellInfo.spanY; 2622 } else { 2623 final ItemInfo dragInfo = (ItemInfo) d.dragInfo; 2624 spanX = dragInfo.spanX; 2625 spanY = dragInfo.spanY; 2626 } 2627 2628 int minSpanX = spanX; 2629 int minSpanY = spanY; 2630 if (d.dragInfo instanceof PendingAddWidgetInfo) { 2631 minSpanX = ((PendingAddWidgetInfo) d.dragInfo).minSpanX; 2632 minSpanY = ((PendingAddWidgetInfo) d.dragInfo).minSpanY; 2633 } 2634 2635 mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], 2636 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, dropTargetLayout, 2637 mTargetCell); 2638 float distance = dropTargetLayout.getDistanceFromCell(mDragViewVisualCenter[0], 2639 mDragViewVisualCenter[1], mTargetCell); 2640 if (willCreateUserFolder((ItemInfo) d.dragInfo, dropTargetLayout, 2641 mTargetCell, distance, true)) { 2642 return true; 2643 } 2644 if (willAddToExistingUserFolder((ItemInfo) d.dragInfo, dropTargetLayout, 2645 mTargetCell, distance)) { 2646 return true; 2647 } 2648 2649 int[] resultSpan = new int[2]; 2650 mTargetCell = dropTargetLayout.createArea((int) mDragViewVisualCenter[0], 2651 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, spanX, spanY, 2652 null, mTargetCell, resultSpan, CellLayout.MODE_ACCEPT_DROP); 2653 boolean foundCell = mTargetCell[0] >= 0 && mTargetCell[1] >= 0; 2654 2655 // Don't accept the drop if there's no room for the item 2656 if (!foundCell) { 2657 // Don't show the message if we are dropping on the AllApps button and the hotseat 2658 // is full 2659 boolean isHotseat = mLauncher.isHotseatLayout(dropTargetLayout); 2660 if (mTargetCell != null && isHotseat) { 2661 Hotseat hotseat = mLauncher.getHotseat(); 2662 if (hotseat.isAllAppsButtonRank( 2663 hotseat.getOrderInHotseat(mTargetCell[0], mTargetCell[1]))) { 2664 return false; 2665 } 2666 } 2667 2668 mLauncher.showOutOfSpaceMessage(isHotseat); 2669 return false; 2670 } 2671 } 2672 2673 long screenId = getIdForScreen(dropTargetLayout); 2674 if (screenId == EXTRA_EMPTY_SCREEN_ID) { 2675 commitExtraEmptyScreen(); 2676 } 2677 2678 return true; 2679 } 2680 2681 boolean willCreateUserFolder(ItemInfo info, CellLayout target, int[] targetCell, float 2682 distance, boolean considerTimeout) { 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 boolean hasntMoved = false; 2694 if (mDragInfo != null) { 2695 hasntMoved = dropOverView == mDragInfo.cell; 2696 } 2697 2698 if (dropOverView == null || hasntMoved || (considerTimeout && !mCreateUserFolderOnDrop)) { 2699 return false; 2700 } 2701 2702 boolean aboveShortcut = (dropOverView.getTag() instanceof ShortcutInfo); 2703 boolean willBecomeShortcut = 2704 (info.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPLICATION || 2705 info.itemType == LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT); 2706 2707 return (aboveShortcut && willBecomeShortcut); 2708 } 2709 2710 boolean willAddToExistingUserFolder(Object dragInfo, CellLayout target, int[] targetCell, 2711 float distance) { 2712 if (distance > mMaxDistanceForFolderCreation) return false; 2713 View dropOverView = target.getChildAt(targetCell[0], targetCell[1]); 2714 2715 if (dropOverView != null) { 2716 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) dropOverView.getLayoutParams(); 2717 if (lp.useTmpCoords && (lp.tmpCellX != lp.cellX || lp.tmpCellY != lp.tmpCellY)) { 2718 return false; 2719 } 2720 } 2721 2722 if (dropOverView instanceof FolderIcon) { 2723 FolderIcon fi = (FolderIcon) dropOverView; 2724 if (fi.acceptDrop(dragInfo)) { 2725 return true; 2726 } 2727 } 2728 return false; 2729 } 2730 2731 boolean createUserFolderIfNecessary(View newView, long container, CellLayout target, 2732 int[] targetCell, float distance, boolean external, DragView dragView, 2733 Runnable postAnimationRunnable) { 2734 if (distance > mMaxDistanceForFolderCreation) return false; 2735 View v = target.getChildAt(targetCell[0], targetCell[1]); 2736 2737 boolean hasntMoved = false; 2738 if (mDragInfo != null) { 2739 CellLayout cellParent = getParentCellLayoutForView(mDragInfo.cell); 2740 hasntMoved = (mDragInfo.cellX == targetCell[0] && 2741 mDragInfo.cellY == targetCell[1]) && (cellParent == target); 2742 } 2743 2744 if (v == null || hasntMoved || !mCreateUserFolderOnDrop) return false; 2745 mCreateUserFolderOnDrop = false; 2746 final long screenId = (targetCell == null) ? mDragInfo.screenId : getIdForScreen(target); 2747 2748 boolean aboveShortcut = (v.getTag() instanceof ShortcutInfo); 2749 boolean willBecomeShortcut = (newView.getTag() instanceof ShortcutInfo); 2750 2751 if (aboveShortcut && willBecomeShortcut) { 2752 ShortcutInfo sourceInfo = (ShortcutInfo) newView.getTag(); 2753 ShortcutInfo destInfo = (ShortcutInfo) v.getTag(); 2754 // if the drag started here, we need to remove it from the workspace 2755 if (!external) { 2756 getParentCellLayoutForView(mDragInfo.cell).removeView(mDragInfo.cell); 2757 } 2758 2759 Rect folderLocation = new Rect(); 2760 float scale = mLauncher.getDragLayer().getDescendantRectRelativeToSelf(v, folderLocation); 2761 target.removeView(v); 2762 2763 FolderIcon fi = 2764 mLauncher.addFolder(target, container, screenId, targetCell[0], targetCell[1]); 2765 destInfo.cellX = -1; 2766 destInfo.cellY = -1; 2767 sourceInfo.cellX = -1; 2768 sourceInfo.cellY = -1; 2769 2770 // If the dragView is null, we can't animate 2771 boolean animate = dragView != null; 2772 if (animate) { 2773 fi.performCreateAnimation(destInfo, v, sourceInfo, dragView, folderLocation, scale, 2774 postAnimationRunnable); 2775 } else { 2776 fi.addItem(destInfo); 2777 fi.addItem(sourceInfo); 2778 } 2779 return true; 2780 } 2781 return false; 2782 } 2783 2784 boolean addToExistingFolderIfNecessary(View newView, CellLayout target, int[] targetCell, 2785 float distance, DragObject d, boolean external) { 2786 if (distance > mMaxDistanceForFolderCreation) return false; 2787 2788 View dropOverView = target.getChildAt(targetCell[0], targetCell[1]); 2789 if (!mAddToExistingFolderOnDrop) return false; 2790 mAddToExistingFolderOnDrop = false; 2791 2792 if (dropOverView instanceof FolderIcon) { 2793 FolderIcon fi = (FolderIcon) dropOverView; 2794 if (fi.acceptDrop(d.dragInfo)) { 2795 fi.onDrop(d); 2796 2797 // if the drag started here, we need to remove it from the workspace 2798 if (!external) { 2799 getParentCellLayoutForView(mDragInfo.cell).removeView(mDragInfo.cell); 2800 } 2801 return true; 2802 } 2803 } 2804 return false; 2805 } 2806 2807 public void onDrop(final DragObject d) { 2808 mDragViewVisualCenter = getDragViewVisualCenter(d.x, d.y, d.xOffset, d.yOffset, d.dragView, 2809 mDragViewVisualCenter); 2810 2811 CellLayout dropTargetLayout = mDropToLayout; 2812 2813 // We want the point to be mapped to the dragTarget. 2814 if (dropTargetLayout != null) { 2815 if (mLauncher.isHotseatLayout(dropTargetLayout)) { 2816 mapPointFromSelfToHotseatLayout(mLauncher.getHotseat(), mDragViewVisualCenter); 2817 } else { 2818 mapPointFromSelfToChild(dropTargetLayout, mDragViewVisualCenter, null); 2819 } 2820 } 2821 2822 int snapScreen = -1; 2823 boolean resizeOnDrop = false; 2824 if (d.dragSource != this) { 2825 final int[] touchXY = new int[] { (int) mDragViewVisualCenter[0], 2826 (int) mDragViewVisualCenter[1] }; 2827 onDropExternal(touchXY, d.dragInfo, dropTargetLayout, false, d); 2828 } else if (mDragInfo != null) { 2829 final View cell = mDragInfo.cell; 2830 2831 Runnable resizeRunnable = null; 2832 if (dropTargetLayout != null && !d.cancelled) { 2833 // Move internally 2834 boolean hasMovedLayouts = (getParentCellLayoutForView(cell) != dropTargetLayout); 2835 boolean hasMovedIntoHotseat = mLauncher.isHotseatLayout(dropTargetLayout); 2836 long container = hasMovedIntoHotseat ? 2837 LauncherSettings.Favorites.CONTAINER_HOTSEAT : 2838 LauncherSettings.Favorites.CONTAINER_DESKTOP; 2839 long screenId = (mTargetCell[0] < 0) ? 2840 mDragInfo.screenId : getIdForScreen(dropTargetLayout); 2841 int spanX = mDragInfo != null ? mDragInfo.spanX : 1; 2842 int spanY = mDragInfo != null ? mDragInfo.spanY : 1; 2843 // First we find the cell nearest to point at which the item is 2844 // dropped, without any consideration to whether there is an item there. 2845 2846 mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], (int) 2847 mDragViewVisualCenter[1], spanX, spanY, dropTargetLayout, mTargetCell); 2848 float distance = dropTargetLayout.getDistanceFromCell(mDragViewVisualCenter[0], 2849 mDragViewVisualCenter[1], mTargetCell); 2850 2851 // If the item being dropped is a shortcut and the nearest drop 2852 // cell also contains a shortcut, then create a folder with the two shortcuts. 2853 if (!mInScrollArea && createUserFolderIfNecessary(cell, container, 2854 dropTargetLayout, mTargetCell, distance, false, d.dragView, null)) { 2855 removeExtraEmptyScreen(true, null, 0, true); 2856 return; 2857 } 2858 2859 if (addToExistingFolderIfNecessary(cell, dropTargetLayout, mTargetCell, 2860 distance, d, false)) { 2861 removeExtraEmptyScreen(true, null, 0, true); 2862 return; 2863 } 2864 2865 // Aside from the special case where we're dropping a shortcut onto a shortcut, 2866 // we need to find the nearest cell location that is vacant 2867 ItemInfo item = (ItemInfo) d.dragInfo; 2868 int minSpanX = item.spanX; 2869 int minSpanY = item.spanY; 2870 if (item.minSpanX > 0 && item.minSpanY > 0) { 2871 minSpanX = item.minSpanX; 2872 minSpanY = item.minSpanY; 2873 } 2874 2875 int[] resultSpan = new int[2]; 2876 mTargetCell = dropTargetLayout.createArea((int) mDragViewVisualCenter[0], 2877 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, spanX, spanY, cell, 2878 mTargetCell, resultSpan, CellLayout.MODE_ON_DROP); 2879 2880 boolean foundCell = mTargetCell[0] >= 0 && mTargetCell[1] >= 0; 2881 2882 // if the widget resizes on drop 2883 if (foundCell && (cell instanceof AppWidgetHostView) && 2884 (resultSpan[0] != item.spanX || resultSpan[1] != item.spanY)) { 2885 resizeOnDrop = true; 2886 item.spanX = resultSpan[0]; 2887 item.spanY = resultSpan[1]; 2888 AppWidgetHostView awhv = (AppWidgetHostView) cell; 2889 AppWidgetResizeFrame.updateWidgetSizeRanges(awhv, mLauncher, resultSpan[0], 2890 resultSpan[1]); 2891 } 2892 2893 if (getScreenIdForPageIndex(mCurrentPage) != screenId && !hasMovedIntoHotseat) { 2894 snapScreen = getPageIndexForScreenId(screenId); 2895 snapToPage(snapScreen); 2896 } 2897 2898 if (foundCell) { 2899 final ItemInfo info = (ItemInfo) cell.getTag(); 2900 if (hasMovedLayouts) { 2901 // Reparent the view 2902 getParentCellLayoutForView(cell).removeView(cell); 2903 addInScreen(cell, container, screenId, mTargetCell[0], mTargetCell[1], 2904 info.spanX, info.spanY); 2905 } 2906 2907 // update the item's position after drop 2908 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) cell.getLayoutParams(); 2909 lp.cellX = lp.tmpCellX = mTargetCell[0]; 2910 lp.cellY = lp.tmpCellY = mTargetCell[1]; 2911 lp.cellHSpan = item.spanX; 2912 lp.cellVSpan = item.spanY; 2913 lp.isLockedToGrid = true; 2914 cell.setId(LauncherModel.getCellLayoutChildId(container, mDragInfo.screenId, 2915 mTargetCell[0], mTargetCell[1], mDragInfo.spanX, mDragInfo.spanY)); 2916 2917 if (container != LauncherSettings.Favorites.CONTAINER_HOTSEAT && 2918 cell instanceof LauncherAppWidgetHostView) { 2919 final CellLayout cellLayout = dropTargetLayout; 2920 // We post this call so that the widget has a chance to be placed 2921 // in its final location 2922 2923 final LauncherAppWidgetHostView hostView = (LauncherAppWidgetHostView) cell; 2924 AppWidgetProviderInfo pinfo = hostView.getAppWidgetInfo(); 2925 if (pinfo != null && 2926 pinfo.resizeMode != AppWidgetProviderInfo.RESIZE_NONE) { 2927 final Runnable addResizeFrame = new Runnable() { 2928 public void run() { 2929 DragLayer dragLayer = mLauncher.getDragLayer(); 2930 dragLayer.addResizeFrame(info, hostView, cellLayout); 2931 } 2932 }; 2933 resizeRunnable = (new Runnable() { 2934 public void run() { 2935 if (!isPageMoving()) { 2936 addResizeFrame.run(); 2937 } else { 2938 mDelayedResizeRunnable = addResizeFrame; 2939 } 2940 } 2941 }); 2942 } 2943 } 2944 2945 LauncherModel.modifyItemInDatabase(mLauncher, info, container, screenId, lp.cellX, 2946 lp.cellY, item.spanX, item.spanY); 2947 } else { 2948 // If we can't find a drop location, we return the item to its original position 2949 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) cell.getLayoutParams(); 2950 mTargetCell[0] = lp.cellX; 2951 mTargetCell[1] = lp.cellY; 2952 CellLayout layout = (CellLayout) cell.getParent().getParent(); 2953 layout.markCellsAsOccupiedForView(cell); 2954 } 2955 } 2956 2957 final CellLayout parent = (CellLayout) cell.getParent().getParent(); 2958 final Runnable finalResizeRunnable = resizeRunnable; 2959 // Prepare it to be animated into its new position 2960 // This must be called after the view has been re-parented 2961 final Runnable onCompleteRunnable = new Runnable() { 2962 @Override 2963 public void run() { 2964 mAnimatingViewIntoPlace = false; 2965 updateChildrenLayersEnabled(false); 2966 if (finalResizeRunnable != null) { 2967 finalResizeRunnable.run(); 2968 } 2969 removeExtraEmptyScreen(true, null, 0, true); 2970 } 2971 }; 2972 mAnimatingViewIntoPlace = true; 2973 if (d.dragView.hasDrawn()) { 2974 final ItemInfo info = (ItemInfo) cell.getTag(); 2975 if (info.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET) { 2976 int animationType = resizeOnDrop ? ANIMATE_INTO_POSITION_AND_RESIZE : 2977 ANIMATE_INTO_POSITION_AND_DISAPPEAR; 2978 animateWidgetDrop(info, parent, d.dragView, 2979 onCompleteRunnable, animationType, cell, false); 2980 } else { 2981 int duration = snapScreen < 0 ? -1 : ADJACENT_SCREEN_DROP_DURATION; 2982 mLauncher.getDragLayer().animateViewIntoPosition(d.dragView, cell, duration, 2983 onCompleteRunnable, this); 2984 } 2985 } else { 2986 d.deferDragViewCleanupPostAnimation = false; 2987 cell.setVisibility(VISIBLE); 2988 } 2989 parent.onDropChild(cell); 2990 } 2991 } 2992 2993 public void setFinalScrollForPageChange(int pageIndex) { 2994 CellLayout cl = (CellLayout) getChildAt(pageIndex); 2995 if (cl != null) { 2996 mSavedScrollX = getScrollX(); 2997 mSavedTranslationX = cl.getTranslationX(); 2998 mSavedRotationY = cl.getRotationY(); 2999 final int newX = getScrollForPage(pageIndex); 3000 setScrollX(newX); 3001 cl.setTranslationX(0f); 3002 cl.setRotationY(0f); 3003 } 3004 } 3005 3006 public void resetFinalScrollForPageChange(int pageIndex) { 3007 if (pageIndex >= 0) { 3008 CellLayout cl = (CellLayout) getChildAt(pageIndex); 3009 setScrollX(mSavedScrollX); 3010 cl.setTranslationX(mSavedTranslationX); 3011 cl.setRotationY(mSavedRotationY); 3012 } 3013 } 3014 3015 public void getViewLocationRelativeToSelf(View v, int[] location) { 3016 getLocationInWindow(location); 3017 int x = location[0]; 3018 int y = location[1]; 3019 3020 v.getLocationInWindow(location); 3021 int vX = location[0]; 3022 int vY = location[1]; 3023 3024 location[0] = vX - x; 3025 location[1] = vY - y; 3026 } 3027 3028 public void onDragEnter(DragObject d) { 3029 mDragEnforcer.onDragEnter(); 3030 mCreateUserFolderOnDrop = false; 3031 mAddToExistingFolderOnDrop = false; 3032 3033 mDropToLayout = null; 3034 CellLayout layout = getCurrentDropLayout(); 3035 setCurrentDropLayout(layout); 3036 setCurrentDragOverlappingLayout(layout); 3037 3038 // Because we don't have space in the Phone UI (the CellLayouts run to the edge) we 3039 // don't need to show the outlines 3040 if (LauncherAppState.getInstance().isScreenLarge()) { 3041 showOutlines(); 3042 } 3043 } 3044 3045 /** Return a rect that has the cellWidth/cellHeight (left, top), and 3046 * widthGap/heightGap (right, bottom) */ 3047 static Rect getCellLayoutMetrics(Launcher launcher, int orientation) { 3048 LauncherAppState app = LauncherAppState.getInstance(); 3049 DeviceProfile grid = app.getDynamicGrid().getDeviceProfile(); 3050 3051 Resources res = launcher.getResources(); 3052 Display display = launcher.getWindowManager().getDefaultDisplay(); 3053 Point smallestSize = new Point(); 3054 Point largestSize = new Point(); 3055 display.getCurrentSizeRange(smallestSize, largestSize); 3056 int countX = (int) grid.numColumns; 3057 int countY = (int) grid.numRows; 3058 int constrainedLongEdge = largestSize.y; 3059 int constrainedShortEdge = smallestSize.y; 3060 if (orientation == CellLayout.LANDSCAPE) { 3061 if (mLandscapeCellLayoutMetrics == null) { 3062 Rect padding = grid.getWorkspacePadding(CellLayout.LANDSCAPE); 3063 int width = constrainedLongEdge - padding.left - padding.right; 3064 int height = constrainedShortEdge - padding.top - padding.bottom; 3065 mLandscapeCellLayoutMetrics = new Rect(); 3066 mLandscapeCellLayoutMetrics.set( 3067 grid.calculateCellWidth(width, countX), 3068 grid.calculateCellHeight(height, countY), 0, 0); 3069 } 3070 return mLandscapeCellLayoutMetrics; 3071 } else if (orientation == CellLayout.PORTRAIT) { 3072 if (mPortraitCellLayoutMetrics == null) { 3073 Rect padding = grid.getWorkspacePadding(CellLayout.PORTRAIT); 3074 int width = constrainedShortEdge - padding.left - padding.right; 3075 int height = constrainedLongEdge - padding.top - padding.bottom; 3076 mPortraitCellLayoutMetrics = new Rect(); 3077 mPortraitCellLayoutMetrics.set( 3078 grid.calculateCellWidth(width, countX), 3079 grid.calculateCellHeight(height, countY), 0, 0); 3080 } 3081 return mPortraitCellLayoutMetrics; 3082 } 3083 return null; 3084 } 3085 3086 public void onDragExit(DragObject d) { 3087 mDragEnforcer.onDragExit(); 3088 3089 // Here we store the final page that will be dropped to, if the workspace in fact 3090 // receives the drop 3091 if (mInScrollArea) { 3092 if (isPageMoving()) { 3093 // If the user drops while the page is scrolling, we should use that page as the 3094 // destination instead of the page that is being hovered over. 3095 mDropToLayout = (CellLayout) getPageAt(getNextPage()); 3096 } else { 3097 mDropToLayout = mDragOverlappingLayout; 3098 } 3099 } else { 3100 mDropToLayout = mDragTargetLayout; 3101 } 3102 3103 if (mDragMode == DRAG_MODE_CREATE_FOLDER) { 3104 mCreateUserFolderOnDrop = true; 3105 } else if (mDragMode == DRAG_MODE_ADD_TO_FOLDER) { 3106 mAddToExistingFolderOnDrop = true; 3107 } 3108 3109 // Reset the scroll area and previous drag target 3110 onResetScrollArea(); 3111 setCurrentDropLayout(null); 3112 setCurrentDragOverlappingLayout(null); 3113 3114 mSpringLoadedDragController.cancel(); 3115 3116 if (!mIsPageMoving) { 3117 hideOutlines(); 3118 } 3119 } 3120 3121 void setCurrentDropLayout(CellLayout layout) { 3122 if (mDragTargetLayout != null) { 3123 mDragTargetLayout.revertTempState(); 3124 mDragTargetLayout.onDragExit(); 3125 } 3126 mDragTargetLayout = layout; 3127 if (mDragTargetLayout != null) { 3128 mDragTargetLayout.onDragEnter(); 3129 } 3130 cleanupReorder(true); 3131 cleanupFolderCreation(); 3132 setCurrentDropOverCell(-1, -1); 3133 } 3134 3135 void setCurrentDragOverlappingLayout(CellLayout layout) { 3136 if (mDragOverlappingLayout != null) { 3137 mDragOverlappingLayout.setIsDragOverlapping(false); 3138 } 3139 mDragOverlappingLayout = layout; 3140 if (mDragOverlappingLayout != null) { 3141 mDragOverlappingLayout.setIsDragOverlapping(true); 3142 } 3143 invalidate(); 3144 } 3145 3146 void setCurrentDropOverCell(int x, int y) { 3147 if (x != mDragOverX || y != mDragOverY) { 3148 mDragOverX = x; 3149 mDragOverY = y; 3150 setDragMode(DRAG_MODE_NONE); 3151 } 3152 } 3153 3154 void setDragMode(int dragMode) { 3155 if (dragMode != mDragMode) { 3156 if (dragMode == DRAG_MODE_NONE) { 3157 cleanupAddToFolder(); 3158 // We don't want to cancel the re-order alarm every time the target cell changes 3159 // as this feels to slow / unresponsive. 3160 cleanupReorder(false); 3161 cleanupFolderCreation(); 3162 } else if (dragMode == DRAG_MODE_ADD_TO_FOLDER) { 3163 cleanupReorder(true); 3164 cleanupFolderCreation(); 3165 } else if (dragMode == DRAG_MODE_CREATE_FOLDER) { 3166 cleanupAddToFolder(); 3167 cleanupReorder(true); 3168 } else if (dragMode == DRAG_MODE_REORDER) { 3169 cleanupAddToFolder(); 3170 cleanupFolderCreation(); 3171 } 3172 mDragMode = dragMode; 3173 } 3174 } 3175 3176 private void cleanupFolderCreation() { 3177 if (mDragFolderRingAnimator != null) { 3178 mDragFolderRingAnimator.animateToNaturalState(); 3179 mDragFolderRingAnimator = null; 3180 } 3181 mFolderCreationAlarm.setOnAlarmListener(null); 3182 mFolderCreationAlarm.cancelAlarm(); 3183 } 3184 3185 private void cleanupAddToFolder() { 3186 if (mDragOverFolderIcon != null) { 3187 mDragOverFolderIcon.onDragExit(null); 3188 mDragOverFolderIcon = null; 3189 } 3190 } 3191 3192 private void cleanupReorder(boolean cancelAlarm) { 3193 // Any pending reorders are canceled 3194 if (cancelAlarm) { 3195 mReorderAlarm.cancelAlarm(); 3196 } 3197 mLastReorderX = -1; 3198 mLastReorderY = -1; 3199 } 3200 3201 /* 3202 * 3203 * Convert the 2D coordinate xy from the parent View's coordinate space to this CellLayout's 3204 * coordinate space. The argument xy is modified with the return result. 3205 * 3206 * if cachedInverseMatrix is not null, this method will just use that matrix instead of 3207 * computing it itself; we use this to avoid redundant matrix inversions in 3208 * findMatchingPageForDragOver 3209 * 3210 */ 3211 void mapPointFromSelfToChild(View v, float[] xy, Matrix cachedInverseMatrix) { 3212 xy[0] = xy[0] - v.getLeft(); 3213 xy[1] = xy[1] - v.getTop(); 3214 } 3215 3216 boolean isPointInSelfOverHotseat(int x, int y, Rect r) { 3217 if (r == null) { 3218 r = new Rect(); 3219 } 3220 mTempPt[0] = x; 3221 mTempPt[1] = y; 3222 mLauncher.getDragLayer().getDescendantCoordRelativeToSelf(this, mTempPt, true); 3223 3224 LauncherAppState app = LauncherAppState.getInstance(); 3225 DeviceProfile grid = app.getDynamicGrid().getDeviceProfile(); 3226 r = grid.getHotseatRect(); 3227 if (r.contains(mTempPt[0], mTempPt[1])) { 3228 return true; 3229 } 3230 return false; 3231 } 3232 3233 void mapPointFromSelfToHotseatLayout(Hotseat hotseat, float[] xy) { 3234 mTempPt[0] = (int) xy[0]; 3235 mTempPt[1] = (int) xy[1]; 3236 mLauncher.getDragLayer().getDescendantCoordRelativeToSelf(this, mTempPt, true); 3237 mLauncher.getDragLayer().mapCoordInSelfToDescendent(hotseat.getLayout(), mTempPt); 3238 3239 xy[0] = mTempPt[0]; 3240 xy[1] = mTempPt[1]; 3241 } 3242 3243 /* 3244 * 3245 * Convert the 2D coordinate xy from this CellLayout's coordinate space to 3246 * the parent View's coordinate space. The argument xy is modified with the return result. 3247 * 3248 */ 3249 void mapPointFromChildToSelf(View v, float[] xy) { 3250 xy[0] += v.getLeft(); 3251 xy[1] += v.getTop(); 3252 } 3253 3254 static private float squaredDistance(float[] point1, float[] point2) { 3255 float distanceX = point1[0] - point2[0]; 3256 float distanceY = point2[1] - point2[1]; 3257 return distanceX * distanceX + distanceY * distanceY; 3258 } 3259 3260 /* 3261 * 3262 * This method returns the CellLayout that is currently being dragged to. In order to drag 3263 * to a CellLayout, either the touch point must be directly over the CellLayout, or as a second 3264 * strategy, we see if the dragView is overlapping any CellLayout and choose the closest one 3265 * 3266 * Return null if no CellLayout is currently being dragged over 3267 * 3268 */ 3269 private CellLayout findMatchingPageForDragOver( 3270 DragView dragView, float originX, float originY, boolean exact) { 3271 // We loop through all the screens (ie CellLayouts) and see which ones overlap 3272 // with the item being dragged and then choose the one that's closest to the touch point 3273 final int screenCount = getChildCount(); 3274 CellLayout bestMatchingScreen = null; 3275 float smallestDistSoFar = Float.MAX_VALUE; 3276 3277 for (int i = 0; i < screenCount; i++) { 3278 // The custom content screen is not a valid drag over option 3279 if (mScreenOrder.get(i) == CUSTOM_CONTENT_SCREEN_ID) { 3280 continue; 3281 } 3282 3283 CellLayout cl = (CellLayout) getChildAt(i); 3284 3285 final float[] touchXy = {originX, originY}; 3286 // Transform the touch coordinates to the CellLayout's local coordinates 3287 // If the touch point is within the bounds of the cell layout, we can return immediately 3288 cl.getMatrix().invert(mTempInverseMatrix); 3289 mapPointFromSelfToChild(cl, touchXy, mTempInverseMatrix); 3290 3291 if (touchXy[0] >= 0 && touchXy[0] <= cl.getWidth() && 3292 touchXy[1] >= 0 && touchXy[1] <= cl.getHeight()) { 3293 return cl; 3294 } 3295 3296 if (!exact) { 3297 // Get the center of the cell layout in screen coordinates 3298 final float[] cellLayoutCenter = mTempCellLayoutCenterCoordinates; 3299 cellLayoutCenter[0] = cl.getWidth()/2; 3300 cellLayoutCenter[1] = cl.getHeight()/2; 3301 mapPointFromChildToSelf(cl, cellLayoutCenter); 3302 3303 touchXy[0] = originX; 3304 touchXy[1] = originY; 3305 3306 // Calculate the distance between the center of the CellLayout 3307 // and the touch point 3308 float dist = squaredDistance(touchXy, cellLayoutCenter); 3309 3310 if (dist < smallestDistSoFar) { 3311 smallestDistSoFar = dist; 3312 bestMatchingScreen = cl; 3313 } 3314 } 3315 } 3316 return bestMatchingScreen; 3317 } 3318 3319 // This is used to compute the visual center of the dragView. This point is then 3320 // used to visualize drop locations and determine where to drop an item. The idea is that 3321 // the visual center represents the user's interpretation of where the item is, and hence 3322 // is the appropriate point to use when determining drop location. 3323 private float[] getDragViewVisualCenter(int x, int y, int xOffset, int yOffset, 3324 DragView dragView, float[] recycle) { 3325 float res[]; 3326 if (recycle == null) { 3327 res = new float[2]; 3328 } else { 3329 res = recycle; 3330 } 3331 3332 // First off, the drag view has been shifted in a way that is not represented in the 3333 // x and y values or the x/yOffsets. Here we account for that shift. 3334 x += getResources().getDimensionPixelSize(R.dimen.dragViewOffsetX); 3335 y += getResources().getDimensionPixelSize(R.dimen.dragViewOffsetY); 3336 3337 // These represent the visual top and left of drag view if a dragRect was provided. 3338 // If a dragRect was not provided, then they correspond to the actual view left and 3339 // top, as the dragRect is in that case taken to be the entire dragView. 3340 // R.dimen.dragViewOffsetY. 3341 int left = x - xOffset; 3342 int top = y - yOffset; 3343 3344 // In order to find the visual center, we shift by half the dragRect 3345 res[0] = left + dragView.getDragRegion().width() / 2; 3346 res[1] = top + dragView.getDragRegion().height() / 2; 3347 3348 return res; 3349 } 3350 3351 private boolean isDragWidget(DragObject d) { 3352 return (d.dragInfo instanceof LauncherAppWidgetInfo || 3353 d.dragInfo instanceof PendingAddWidgetInfo); 3354 } 3355 private boolean isExternalDragWidget(DragObject d) { 3356 return d.dragSource != this && isDragWidget(d); 3357 } 3358 3359 public void onDragOver(DragObject d) { 3360 // Skip drag over events while we are dragging over side pages 3361 if (mInScrollArea || mIsSwitchingState || mState == State.SMALL) return; 3362 3363 Rect r = new Rect(); 3364 CellLayout layout = null; 3365 ItemInfo item = (ItemInfo) d.dragInfo; 3366 3367 // Ensure that we have proper spans for the item that we are dropping 3368 if (item.spanX < 0 || item.spanY < 0) throw new RuntimeException("Improper spans found"); 3369 mDragViewVisualCenter = getDragViewVisualCenter(d.x, d.y, d.xOffset, d.yOffset, 3370 d.dragView, mDragViewVisualCenter); 3371 3372 final View child = (mDragInfo == null) ? null : mDragInfo.cell; 3373 // Identify whether we have dragged over a side page 3374 if (isSmall()) { 3375 if (mLauncher.getHotseat() != null && !isExternalDragWidget(d)) { 3376 if (isPointInSelfOverHotseat(d.x, d.y, r)) { 3377 layout = mLauncher.getHotseat().getLayout(); 3378 } 3379 } 3380 if (layout == null) { 3381 layout = findMatchingPageForDragOver(d.dragView, d.x, d.y, false); 3382 } 3383 if (layout != mDragTargetLayout) { 3384 setCurrentDropLayout(layout); 3385 setCurrentDragOverlappingLayout(layout); 3386 3387 boolean isInSpringLoadedMode = (mState == State.SPRING_LOADED); 3388 if (isInSpringLoadedMode) { 3389 if (mLauncher.isHotseatLayout(layout)) { 3390 mSpringLoadedDragController.cancel(); 3391 } else { 3392 mSpringLoadedDragController.setAlarm(mDragTargetLayout); 3393 } 3394 } 3395 } 3396 } else { 3397 // Test to see if we are over the hotseat otherwise just use the current page 3398 if (mLauncher.getHotseat() != null && !isDragWidget(d)) { 3399 if (isPointInSelfOverHotseat(d.x, d.y, r)) { 3400 layout = mLauncher.getHotseat().getLayout(); 3401 } 3402 } 3403 if (layout == null) { 3404 layout = getCurrentDropLayout(); 3405 } 3406 if (layout != mDragTargetLayout) { 3407 setCurrentDropLayout(layout); 3408 setCurrentDragOverlappingLayout(layout); 3409 } 3410 } 3411 3412 // Handle the drag over 3413 if (mDragTargetLayout != null) { 3414 // We want the point to be mapped to the dragTarget. 3415 if (mLauncher.isHotseatLayout(mDragTargetLayout)) { 3416 mapPointFromSelfToHotseatLayout(mLauncher.getHotseat(), mDragViewVisualCenter); 3417 } else { 3418 mapPointFromSelfToChild(mDragTargetLayout, mDragViewVisualCenter, null); 3419 } 3420 3421 ItemInfo info = (ItemInfo) d.dragInfo; 3422 3423 int minSpanX = item.spanX; 3424 int minSpanY = item.spanY; 3425 if (item.minSpanX > 0 && item.minSpanY > 0) { 3426 minSpanX = item.minSpanX; 3427 minSpanY = item.minSpanY; 3428 } 3429 3430 mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], 3431 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, 3432 mDragTargetLayout, mTargetCell); 3433 int reorderX = mTargetCell[0]; 3434 int reorderY = mTargetCell[1]; 3435 3436 setCurrentDropOverCell(mTargetCell[0], mTargetCell[1]); 3437 3438 float targetCellDistance = mDragTargetLayout.getDistanceFromCell( 3439 mDragViewVisualCenter[0], mDragViewVisualCenter[1], mTargetCell); 3440 3441 final View dragOverView = mDragTargetLayout.getChildAt(mTargetCell[0], 3442 mTargetCell[1]); 3443 3444 manageFolderFeedback(info, mDragTargetLayout, mTargetCell, 3445 targetCellDistance, dragOverView); 3446 3447 boolean nearestDropOccupied = mDragTargetLayout.isNearestDropLocationOccupied((int) 3448 mDragViewVisualCenter[0], (int) mDragViewVisualCenter[1], item.spanX, 3449 item.spanY, child, mTargetCell); 3450 3451 if (!nearestDropOccupied) { 3452 mDragTargetLayout.visualizeDropLocation(child, mDragOutline, 3453 (int) mDragViewVisualCenter[0], (int) mDragViewVisualCenter[1], 3454 mTargetCell[0], mTargetCell[1], item.spanX, item.spanY, false, 3455 d.dragView.getDragVisualizeOffset(), d.dragView.getDragRegion()); 3456 } else if ((mDragMode == DRAG_MODE_NONE || mDragMode == DRAG_MODE_REORDER) 3457 && !mReorderAlarm.alarmPending() && (mLastReorderX != reorderX || 3458 mLastReorderY != reorderY)) { 3459 3460 // Otherwise, if we aren't adding to or creating a folder and there's no pending 3461 // reorder, then we schedule a reorder 3462 ReorderAlarmListener listener = new ReorderAlarmListener(mDragViewVisualCenter, 3463 minSpanX, minSpanY, item.spanX, item.spanY, d.dragView, child); 3464 mReorderAlarm.setOnAlarmListener(listener); 3465 mReorderAlarm.setAlarm(REORDER_TIMEOUT); 3466 } 3467 3468 if (mDragMode == DRAG_MODE_CREATE_FOLDER || mDragMode == DRAG_MODE_ADD_TO_FOLDER || 3469 !nearestDropOccupied) { 3470 if (mDragTargetLayout != null) { 3471 mDragTargetLayout.revertTempState(); 3472 } 3473 } 3474 } 3475 } 3476 3477 private void manageFolderFeedback(ItemInfo info, CellLayout targetLayout, 3478 int[] targetCell, float distance, View dragOverView) { 3479 boolean userFolderPending = willCreateUserFolder(info, targetLayout, targetCell, distance, 3480 false); 3481 3482 if (mDragMode == DRAG_MODE_NONE && userFolderPending && 3483 !mFolderCreationAlarm.alarmPending()) { 3484 mFolderCreationAlarm.setOnAlarmListener(new 3485 FolderCreationAlarmListener(targetLayout, targetCell[0], targetCell[1])); 3486 mFolderCreationAlarm.setAlarm(FOLDER_CREATION_TIMEOUT); 3487 return; 3488 } 3489 3490 boolean willAddToFolder = 3491 willAddToExistingUserFolder(info, targetLayout, targetCell, distance); 3492 3493 if (willAddToFolder && mDragMode == DRAG_MODE_NONE) { 3494 mDragOverFolderIcon = ((FolderIcon) dragOverView); 3495 mDragOverFolderIcon.onDragEnter(info); 3496 if (targetLayout != null) { 3497 targetLayout.clearDragOutlines(); 3498 } 3499 setDragMode(DRAG_MODE_ADD_TO_FOLDER); 3500 return; 3501 } 3502 3503 if (mDragMode == DRAG_MODE_ADD_TO_FOLDER && !willAddToFolder) { 3504 setDragMode(DRAG_MODE_NONE); 3505 } 3506 if (mDragMode == DRAG_MODE_CREATE_FOLDER && !userFolderPending) { 3507 setDragMode(DRAG_MODE_NONE); 3508 } 3509 3510 return; 3511 } 3512 3513 class FolderCreationAlarmListener implements OnAlarmListener { 3514 CellLayout layout; 3515 int cellX; 3516 int cellY; 3517 3518 public FolderCreationAlarmListener(CellLayout layout, int cellX, int cellY) { 3519 this.layout = layout; 3520 this.cellX = cellX; 3521 this.cellY = cellY; 3522 } 3523 3524 public void onAlarm(Alarm alarm) { 3525 if (mDragFolderRingAnimator != null) { 3526 // This shouldn't happen ever, but just in case, make sure we clean up the mess. 3527 mDragFolderRingAnimator.animateToNaturalState(); 3528 } 3529 mDragFolderRingAnimator = new FolderRingAnimator(mLauncher, null); 3530 mDragFolderRingAnimator.setCell(cellX, cellY); 3531 mDragFolderRingAnimator.setCellLayout(layout); 3532 mDragFolderRingAnimator.animateToAcceptState(); 3533 layout.showFolderAccept(mDragFolderRingAnimator); 3534 layout.clearDragOutlines(); 3535 setDragMode(DRAG_MODE_CREATE_FOLDER); 3536 } 3537 } 3538 3539 class ReorderAlarmListener implements OnAlarmListener { 3540 float[] dragViewCenter; 3541 int minSpanX, minSpanY, spanX, spanY; 3542 DragView dragView; 3543 View child; 3544 3545 public ReorderAlarmListener(float[] dragViewCenter, int minSpanX, int minSpanY, int spanX, 3546 int spanY, DragView dragView, View child) { 3547 this.dragViewCenter = dragViewCenter; 3548 this.minSpanX = minSpanX; 3549 this.minSpanY = minSpanY; 3550 this.spanX = spanX; 3551 this.spanY = spanY; 3552 this.child = child; 3553 this.dragView = dragView; 3554 } 3555 3556 public void onAlarm(Alarm alarm) { 3557 int[] resultSpan = new int[2]; 3558 mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], 3559 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, mDragTargetLayout, 3560 mTargetCell); 3561 mLastReorderX = mTargetCell[0]; 3562 mLastReorderY = mTargetCell[1]; 3563 3564 mTargetCell = mDragTargetLayout.createArea((int) mDragViewVisualCenter[0], 3565 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, spanX, spanY, 3566 child, mTargetCell, resultSpan, CellLayout.MODE_DRAG_OVER); 3567 3568 if (mTargetCell[0] < 0 || mTargetCell[1] < 0) { 3569 mDragTargetLayout.revertTempState(); 3570 } else { 3571 setDragMode(DRAG_MODE_REORDER); 3572 } 3573 3574 boolean resize = resultSpan[0] != spanX || resultSpan[1] != spanY; 3575 mDragTargetLayout.visualizeDropLocation(child, mDragOutline, 3576 (int) mDragViewVisualCenter[0], (int) mDragViewVisualCenter[1], 3577 mTargetCell[0], mTargetCell[1], resultSpan[0], resultSpan[1], resize, 3578 dragView.getDragVisualizeOffset(), dragView.getDragRegion()); 3579 } 3580 } 3581 3582 @Override 3583 public void getHitRectRelativeToDragLayer(Rect outRect) { 3584 // We want the workspace to have the whole area of the display (it will find the correct 3585 // cell layout to drop to in the existing drag/drop logic. 3586 mLauncher.getDragLayer().getDescendantRectRelativeToSelf(this, outRect); 3587 } 3588 3589 /** 3590 * Add the item specified by dragInfo to the given layout. 3591 * @return true if successful 3592 */ 3593 public boolean addExternalItemToScreen(ItemInfo dragInfo, CellLayout layout) { 3594 if (layout.findCellForSpan(mTempEstimate, dragInfo.spanX, dragInfo.spanY)) { 3595 onDropExternal(dragInfo.dropPos, (ItemInfo) dragInfo, (CellLayout) layout, false); 3596 return true; 3597 } 3598 mLauncher.showOutOfSpaceMessage(mLauncher.isHotseatLayout(layout)); 3599 return false; 3600 } 3601 3602 private void onDropExternal(int[] touchXY, Object dragInfo, 3603 CellLayout cellLayout, boolean insertAtFirst) { 3604 onDropExternal(touchXY, dragInfo, cellLayout, insertAtFirst, null); 3605 } 3606 3607 /** 3608 * Drop an item that didn't originate on one of the workspace screens. 3609 * It may have come from Launcher (e.g. from all apps or customize), or it may have 3610 * come from another app altogether. 3611 * 3612 * NOTE: This can also be called when we are outside of a drag event, when we want 3613 * to add an item to one of the workspace screens. 3614 */ 3615 private void onDropExternal(final int[] touchXY, final Object dragInfo, 3616 final CellLayout cellLayout, boolean insertAtFirst, DragObject d) { 3617 final Runnable exitSpringLoadedRunnable = new Runnable() { 3618 @Override 3619 public void run() { 3620 removeExtraEmptyScreen(false, new Runnable() { 3621 @Override 3622 public void run() { 3623 mLauncher.exitSpringLoadedDragModeDelayed(true, 3624 Launcher.EXIT_SPRINGLOADED_MODE_SHORT_TIMEOUT, null); 3625 } 3626 }); 3627 } 3628 }; 3629 3630 ItemInfo info = (ItemInfo) dragInfo; 3631 int spanX = info.spanX; 3632 int spanY = info.spanY; 3633 if (mDragInfo != null) { 3634 spanX = mDragInfo.spanX; 3635 spanY = mDragInfo.spanY; 3636 } 3637 3638 final long container = mLauncher.isHotseatLayout(cellLayout) ? 3639 LauncherSettings.Favorites.CONTAINER_HOTSEAT : 3640 LauncherSettings.Favorites.CONTAINER_DESKTOP; 3641 final long screenId = getIdForScreen(cellLayout); 3642 if (!mLauncher.isHotseatLayout(cellLayout) 3643 && screenId != getScreenIdForPageIndex(mCurrentPage) 3644 && mState != State.SPRING_LOADED) { 3645 snapToScreenId(screenId, null); 3646 } 3647 3648 if (info instanceof PendingAddItemInfo) { 3649 final PendingAddItemInfo pendingInfo = (PendingAddItemInfo) dragInfo; 3650 3651 boolean findNearestVacantCell = true; 3652 if (pendingInfo.itemType == LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT) { 3653 mTargetCell = findNearestArea((int) touchXY[0], (int) touchXY[1], spanX, spanY, 3654 cellLayout, mTargetCell); 3655 float distance = cellLayout.getDistanceFromCell(mDragViewVisualCenter[0], 3656 mDragViewVisualCenter[1], mTargetCell); 3657 if (willCreateUserFolder((ItemInfo) d.dragInfo, cellLayout, mTargetCell, 3658 distance, true) || willAddToExistingUserFolder((ItemInfo) d.dragInfo, 3659 cellLayout, mTargetCell, distance)) { 3660 findNearestVacantCell = false; 3661 } 3662 } 3663 3664 final ItemInfo item = (ItemInfo) d.dragInfo; 3665 boolean updateWidgetSize = false; 3666 if (findNearestVacantCell) { 3667 int minSpanX = item.spanX; 3668 int minSpanY = item.spanY; 3669 if (item.minSpanX > 0 && item.minSpanY > 0) { 3670 minSpanX = item.minSpanX; 3671 minSpanY = item.minSpanY; 3672 } 3673 int[] resultSpan = new int[2]; 3674 mTargetCell = cellLayout.createArea((int) mDragViewVisualCenter[0], 3675 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, info.spanX, info.spanY, 3676 null, mTargetCell, resultSpan, CellLayout.MODE_ON_DROP_EXTERNAL); 3677 3678 if (resultSpan[0] != item.spanX || resultSpan[1] != item.spanY) { 3679 updateWidgetSize = true; 3680 } 3681 item.spanX = resultSpan[0]; 3682 item.spanY = resultSpan[1]; 3683 } 3684 3685 Runnable onAnimationCompleteRunnable = new Runnable() { 3686 @Override 3687 public void run() { 3688 // When dragging and dropping from customization tray, we deal with creating 3689 // widgets/shortcuts/folders in a slightly different way 3690 switch (pendingInfo.itemType) { 3691 case LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET: 3692 int span[] = new int[2]; 3693 span[0] = item.spanX; 3694 span[1] = item.spanY; 3695 mLauncher.addAppWidgetFromDrop((PendingAddWidgetInfo) pendingInfo, 3696 container, screenId, mTargetCell, span, null); 3697 break; 3698 case LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT: 3699 mLauncher.processShortcutFromDrop(pendingInfo.componentName, 3700 container, screenId, mTargetCell, null); 3701 break; 3702 default: 3703 throw new IllegalStateException("Unknown item type: " + 3704 pendingInfo.itemType); 3705 } 3706 } 3707 }; 3708 View finalView = pendingInfo.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET 3709 ? ((PendingAddWidgetInfo) pendingInfo).boundWidget : null; 3710 3711 if (finalView instanceof AppWidgetHostView && updateWidgetSize) { 3712 AppWidgetHostView awhv = (AppWidgetHostView) finalView; 3713 AppWidgetResizeFrame.updateWidgetSizeRanges(awhv, mLauncher, item.spanX, 3714 item.spanY); 3715 } 3716 3717 int animationStyle = ANIMATE_INTO_POSITION_AND_DISAPPEAR; 3718 if (pendingInfo.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET && 3719 ((PendingAddWidgetInfo) pendingInfo).info.configure != null) { 3720 animationStyle = ANIMATE_INTO_POSITION_AND_REMAIN; 3721 } 3722 animateWidgetDrop(info, cellLayout, d.dragView, onAnimationCompleteRunnable, 3723 animationStyle, finalView, true); 3724 } else { 3725 // This is for other drag/drop cases, like dragging from All Apps 3726 View view = null; 3727 3728 switch (info.itemType) { 3729 case LauncherSettings.Favorites.ITEM_TYPE_APPLICATION: 3730 case LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT: 3731 if (info.container == NO_ID && info instanceof AppInfo) { 3732 // Came from all apps -- make a copy 3733 info = new ShortcutInfo((AppInfo) info); 3734 } 3735 view = mLauncher.createShortcut(R.layout.application, cellLayout, 3736 (ShortcutInfo) info); 3737 break; 3738 case LauncherSettings.Favorites.ITEM_TYPE_FOLDER: 3739 view = FolderIcon.fromXml(R.layout.folder_icon, mLauncher, cellLayout, 3740 (FolderInfo) info, mIconCache); 3741 break; 3742 default: 3743 throw new IllegalStateException("Unknown item type: " + info.itemType); 3744 } 3745 3746 // First we find the cell nearest to point at which the item is 3747 // dropped, without any consideration to whether there is an item there. 3748 if (touchXY != null) { 3749 mTargetCell = findNearestArea((int) touchXY[0], (int) touchXY[1], spanX, spanY, 3750 cellLayout, mTargetCell); 3751 float distance = cellLayout.getDistanceFromCell(mDragViewVisualCenter[0], 3752 mDragViewVisualCenter[1], mTargetCell); 3753 d.postAnimationRunnable = exitSpringLoadedRunnable; 3754 if (createUserFolderIfNecessary(view, container, cellLayout, mTargetCell, distance, 3755 true, d.dragView, d.postAnimationRunnable)) { 3756 return; 3757 } 3758 if (addToExistingFolderIfNecessary(view, cellLayout, mTargetCell, distance, d, 3759 true)) { 3760 return; 3761 } 3762 } 3763 3764 if (touchXY != null) { 3765 // when dragging and dropping, just find the closest free spot 3766 mTargetCell = cellLayout.createArea((int) mDragViewVisualCenter[0], 3767 (int) mDragViewVisualCenter[1], 1, 1, 1, 1, 3768 null, mTargetCell, null, CellLayout.MODE_ON_DROP_EXTERNAL); 3769 } else { 3770 cellLayout.findCellForSpan(mTargetCell, 1, 1); 3771 } 3772 addInScreen(view, container, screenId, mTargetCell[0], mTargetCell[1], info.spanX, 3773 info.spanY, insertAtFirst); 3774 cellLayout.onDropChild(view); 3775 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) view.getLayoutParams(); 3776 cellLayout.getShortcutsAndWidgets().measureChild(view); 3777 3778 LauncherModel.addOrMoveItemInDatabase(mLauncher, info, container, screenId, 3779 lp.cellX, lp.cellY); 3780 3781 if (d.dragView != null) { 3782 // We wrap the animation call in the temporary set and reset of the current 3783 // cellLayout to its final transform -- this means we animate the drag view to 3784 // the correct final location. 3785 setFinalTransitionTransform(cellLayout); 3786 mLauncher.getDragLayer().animateViewIntoPosition(d.dragView, view, 3787 exitSpringLoadedRunnable, this); 3788 resetTransitionTransform(cellLayout); 3789 } 3790 } 3791 } 3792 3793 public Bitmap createWidgetBitmap(ItemInfo widgetInfo, View layout) { 3794 int[] unScaledSize = mLauncher.getWorkspace().estimateItemSize(widgetInfo.spanX, 3795 widgetInfo.spanY, widgetInfo, false); 3796 int visibility = layout.getVisibility(); 3797 layout.setVisibility(VISIBLE); 3798 3799 int width = MeasureSpec.makeMeasureSpec(unScaledSize[0], MeasureSpec.EXACTLY); 3800 int height = MeasureSpec.makeMeasureSpec(unScaledSize[1], MeasureSpec.EXACTLY); 3801 Bitmap b = Bitmap.createBitmap(unScaledSize[0], unScaledSize[1], 3802 Bitmap.Config.ARGB_8888); 3803 Canvas c = new Canvas(b); 3804 3805 layout.measure(width, height); 3806 layout.layout(0, 0, unScaledSize[0], unScaledSize[1]); 3807 layout.draw(c); 3808 c.setBitmap(null); 3809 layout.setVisibility(visibility); 3810 return b; 3811 } 3812 3813 private void getFinalPositionForDropAnimation(int[] loc, float[] scaleXY, 3814 DragView dragView, CellLayout layout, ItemInfo info, int[] targetCell, 3815 boolean external, boolean scale) { 3816 // Now we animate the dragView, (ie. the widget or shortcut preview) into its final 3817 // location and size on the home screen. 3818 int spanX = info.spanX; 3819 int spanY = info.spanY; 3820 3821 Rect r = estimateItemPosition(layout, info, targetCell[0], targetCell[1], spanX, spanY); 3822 loc[0] = r.left; 3823 loc[1] = r.top; 3824 3825 setFinalTransitionTransform(layout); 3826 float cellLayoutScale = 3827 mLauncher.getDragLayer().getDescendantCoordRelativeToSelf(layout, loc, true); 3828 resetTransitionTransform(layout); 3829 3830 float dragViewScaleX; 3831 float dragViewScaleY; 3832 if (scale) { 3833 dragViewScaleX = (1.0f * r.width()) / dragView.getMeasuredWidth(); 3834 dragViewScaleY = (1.0f * r.height()) / dragView.getMeasuredHeight(); 3835 } else { 3836 dragViewScaleX = 1f; 3837 dragViewScaleY = 1f; 3838 } 3839 3840 // The animation will scale the dragView about its center, so we need to center about 3841 // the final location. 3842 loc[0] -= (dragView.getMeasuredWidth() - cellLayoutScale * r.width()) / 2; 3843 loc[1] -= (dragView.getMeasuredHeight() - cellLayoutScale * r.height()) / 2; 3844 3845 scaleXY[0] = dragViewScaleX * cellLayoutScale; 3846 scaleXY[1] = dragViewScaleY * cellLayoutScale; 3847 } 3848 3849 public void animateWidgetDrop(ItemInfo info, CellLayout cellLayout, DragView dragView, 3850 final Runnable onCompleteRunnable, int animationType, final View finalView, 3851 boolean external) { 3852 Rect from = new Rect(); 3853 mLauncher.getDragLayer().getViewRectRelativeToSelf(dragView, from); 3854 3855 int[] finalPos = new int[2]; 3856 float scaleXY[] = new float[2]; 3857 boolean scalePreview = !(info instanceof PendingAddShortcutInfo); 3858 getFinalPositionForDropAnimation(finalPos, scaleXY, dragView, cellLayout, info, mTargetCell, 3859 external, scalePreview); 3860 3861 Resources res = mLauncher.getResources(); 3862 final int duration = res.getInteger(R.integer.config_dropAnimMaxDuration) - 200; 3863 3864 // In the case where we've prebound the widget, we remove it from the DragLayer 3865 if (finalView instanceof AppWidgetHostView && external) { 3866 Log.d(TAG, "6557954 Animate widget drop, final view is appWidgetHostView"); 3867 mLauncher.getDragLayer().removeView(finalView); 3868 } 3869 if ((animationType == ANIMATE_INTO_POSITION_AND_RESIZE || external) && finalView != null) { 3870 Bitmap crossFadeBitmap = createWidgetBitmap(info, finalView); 3871 dragView.setCrossFadeBitmap(crossFadeBitmap); 3872 dragView.crossFade((int) (duration * 0.8f)); 3873 } else if (info.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET && external) { 3874 scaleXY[0] = scaleXY[1] = Math.min(scaleXY[0], scaleXY[1]); 3875 } 3876 3877 DragLayer dragLayer = mLauncher.getDragLayer(); 3878 if (animationType == CANCEL_TWO_STAGE_WIDGET_DROP_ANIMATION) { 3879 mLauncher.getDragLayer().animateViewIntoPosition(dragView, finalPos, 0f, 0.1f, 0.1f, 3880 DragLayer.ANIMATION_END_DISAPPEAR, onCompleteRunnable, duration); 3881 } else { 3882 int endStyle; 3883 if (animationType == ANIMATE_INTO_POSITION_AND_REMAIN) { 3884 endStyle = DragLayer.ANIMATION_END_REMAIN_VISIBLE; 3885 } else { 3886 endStyle = DragLayer.ANIMATION_END_DISAPPEAR;; 3887 } 3888 3889 Runnable onComplete = new Runnable() { 3890 @Override 3891 public void run() { 3892 if (finalView != null) { 3893 finalView.setVisibility(VISIBLE); 3894 } 3895 if (onCompleteRunnable != null) { 3896 onCompleteRunnable.run(); 3897 } 3898 } 3899 }; 3900 dragLayer.animateViewIntoPosition(dragView, from.left, from.top, finalPos[0], 3901 finalPos[1], 1, 1, 1, scaleXY[0], scaleXY[1], onComplete, endStyle, 3902 duration, this); 3903 } 3904 } 3905 3906 public void setFinalTransitionTransform(CellLayout layout) { 3907 if (isSwitchingState()) { 3908 mCurrentScale = getScaleX(); 3909 setScaleX(mNewScale); 3910 setScaleY(mNewScale); 3911 } 3912 } 3913 public void resetTransitionTransform(CellLayout layout) { 3914 if (isSwitchingState()) { 3915 setScaleX(mCurrentScale); 3916 setScaleY(mCurrentScale); 3917 } 3918 } 3919 3920 /** 3921 * Return the current {@link CellLayout}, correctly picking the destination 3922 * screen while a scroll is in progress. 3923 */ 3924 public CellLayout getCurrentDropLayout() { 3925 return (CellLayout) getChildAt(getNextPage()); 3926 } 3927 3928 /** 3929 * Return the current CellInfo describing our current drag; this method exists 3930 * so that Launcher can sync this object with the correct info when the activity is created/ 3931 * destroyed 3932 * 3933 */ 3934 public CellLayout.CellInfo getDragInfo() { 3935 return mDragInfo; 3936 } 3937 3938 public int getRestorePage() { 3939 return getNextPage() - numCustomPages(); 3940 } 3941 3942 /** 3943 * Calculate the nearest cell where the given object would be dropped. 3944 * 3945 * pixelX and pixelY should be in the coordinate system of layout 3946 */ 3947 private int[] findNearestArea(int pixelX, int pixelY, 3948 int spanX, int spanY, CellLayout layout, int[] recycle) { 3949 return layout.findNearestArea( 3950 pixelX, pixelY, spanX, spanY, recycle); 3951 } 3952 3953 void setup(DragController dragController) { 3954 mSpringLoadedDragController = new SpringLoadedDragController(mLauncher); 3955 mDragController = dragController; 3956 3957 // hardware layers on children are enabled on startup, but should be disabled until 3958 // needed 3959 updateChildrenLayersEnabled(false); 3960 setWallpaperDimension(); 3961 } 3962 3963 /** 3964 * Called at the end of a drag which originated on the workspace. 3965 */ 3966 public void onDropCompleted(final View target, final DragObject d, 3967 final boolean isFlingToDelete, final boolean success) { 3968 if (mDeferDropAfterUninstall) { 3969 mDeferredAction = new Runnable() { 3970 public void run() { 3971 onDropCompleted(target, d, isFlingToDelete, success); 3972 mDeferredAction = null; 3973 } 3974 }; 3975 return; 3976 } 3977 3978 boolean beingCalledAfterUninstall = mDeferredAction != null; 3979 3980 if (success && !(beingCalledAfterUninstall && !mUninstallSuccessful)) { 3981 if (target != this && mDragInfo != null) { 3982 CellLayout parentCell = getParentCellLayoutForView(mDragInfo.cell); 3983 if (parentCell != null) { 3984 parentCell.removeView(mDragInfo.cell); 3985 } 3986 if (mDragInfo.cell instanceof DropTarget) { 3987 mDragController.removeDropTarget((DropTarget) mDragInfo.cell); 3988 } 3989 // If we move the item to anything not on the Workspace, check if any empty 3990 // screens need to be removed. If we dropped back on the workspace, this will 3991 // be done post drop animation. 3992 removeExtraEmptyScreen(true, null, 0, true); 3993 } 3994 } else if (mDragInfo != null) { 3995 CellLayout cellLayout; 3996 if (mLauncher.isHotseatLayout(target)) { 3997 cellLayout = mLauncher.getHotseat().getLayout(); 3998 } else { 3999 cellLayout = getScreenWithId(mDragInfo.screenId); 4000 } 4001 cellLayout.onDropChild(mDragInfo.cell); 4002 } 4003 if ((d.cancelled || (beingCalledAfterUninstall && !mUninstallSuccessful)) 4004 && mDragInfo.cell != null) { 4005 mDragInfo.cell.setVisibility(VISIBLE); 4006 } 4007 mDragOutline = null; 4008 mDragInfo = null; 4009 } 4010 4011 public void deferCompleteDropAfterUninstallActivity() { 4012 mDeferDropAfterUninstall = true; 4013 } 4014 4015 /// maybe move this into a smaller part 4016 public void onUninstallActivityReturned(boolean success) { 4017 mDeferDropAfterUninstall = false; 4018 mUninstallSuccessful = success; 4019 if (mDeferredAction != null) { 4020 mDeferredAction.run(); 4021 } 4022 } 4023 4024 void updateItemLocationsInDatabase(CellLayout cl) { 4025 int count = cl.getShortcutsAndWidgets().getChildCount(); 4026 4027 long screenId = getIdForScreen(cl); 4028 int container = Favorites.CONTAINER_DESKTOP; 4029 4030 if (mLauncher.isHotseatLayout(cl)) { 4031 screenId = -1; 4032 container = Favorites.CONTAINER_HOTSEAT; 4033 } 4034 4035 for (int i = 0; i < count; i++) { 4036 View v = cl.getShortcutsAndWidgets().getChildAt(i); 4037 ItemInfo info = (ItemInfo) v.getTag(); 4038 // Null check required as the AllApps button doesn't have an item info 4039 if (info != null && info.requiresDbUpdate) { 4040 info.requiresDbUpdate = false; 4041 LauncherModel.modifyItemInDatabase(mLauncher, info, container, screenId, info.cellX, 4042 info.cellY, info.spanX, info.spanY); 4043 } 4044 } 4045 } 4046 4047 ArrayList<ComponentName> getUniqueComponents(boolean stripDuplicates, ArrayList<ComponentName> duplicates) { 4048 ArrayList<ComponentName> uniqueIntents = new ArrayList<ComponentName>(); 4049 getUniqueIntents((CellLayout) mLauncher.getHotseat().getLayout(), uniqueIntents, duplicates, false); 4050 int count = getChildCount(); 4051 for (int i = 0; i < count; i++) { 4052 CellLayout cl = (CellLayout) getChildAt(i); 4053 getUniqueIntents(cl, uniqueIntents, duplicates, false); 4054 } 4055 return uniqueIntents; 4056 } 4057 4058 void getUniqueIntents(CellLayout cl, ArrayList<ComponentName> uniqueIntents, 4059 ArrayList<ComponentName> duplicates, boolean stripDuplicates) { 4060 int count = cl.getShortcutsAndWidgets().getChildCount(); 4061 4062 ArrayList<View> children = new ArrayList<View>(); 4063 for (int i = 0; i < count; i++) { 4064 View v = cl.getShortcutsAndWidgets().getChildAt(i); 4065 children.add(v); 4066 } 4067 4068 for (int i = 0; i < count; i++) { 4069 View v = children.get(i); 4070 ItemInfo info = (ItemInfo) v.getTag(); 4071 // Null check required as the AllApps button doesn't have an item info 4072 if (info instanceof ShortcutInfo) { 4073 ShortcutInfo si = (ShortcutInfo) info; 4074 ComponentName cn = si.intent.getComponent(); 4075 4076 Uri dataUri = si.intent.getData(); 4077 // If dataUri is not null / empty or if this component isn't one that would 4078 // have previously showed up in the AllApps list, then this is a widget-type 4079 // shortcut, so ignore it. 4080 if (dataUri != null && !dataUri.equals(Uri.EMPTY)) { 4081 continue; 4082 } 4083 4084 if (!uniqueIntents.contains(cn)) { 4085 uniqueIntents.add(cn); 4086 } else { 4087 if (stripDuplicates) { 4088 cl.removeViewInLayout(v); 4089 LauncherModel.deleteItemFromDatabase(mLauncher, si); 4090 } 4091 if (duplicates != null) { 4092 duplicates.add(cn); 4093 } 4094 } 4095 } 4096 if (v instanceof FolderIcon) { 4097 FolderIcon fi = (FolderIcon) v; 4098 ArrayList<View> items = fi.getFolder().getItemsInReadingOrder(); 4099 for (int j = 0; j < items.size(); j++) { 4100 if (items.get(j).getTag() instanceof ShortcutInfo) { 4101 ShortcutInfo si = (ShortcutInfo) items.get(j).getTag(); 4102 ComponentName cn = si.intent.getComponent(); 4103 4104 Uri dataUri = si.intent.getData(); 4105 // If dataUri is not null / empty or if this component isn't one that would 4106 // have previously showed up in the AllApps list, then this is a widget-type 4107 // shortcut, so ignore it. 4108 if (dataUri != null && !dataUri.equals(Uri.EMPTY)) { 4109 continue; 4110 } 4111 4112 if (!uniqueIntents.contains(cn)) { 4113 uniqueIntents.add(cn); 4114 } else { 4115 if (stripDuplicates) { 4116 fi.getFolderInfo().remove(si); 4117 LauncherModel.deleteItemFromDatabase(mLauncher, si); 4118 } 4119 if (duplicates != null) { 4120 duplicates.add(cn); 4121 } 4122 } 4123 } 4124 } 4125 } 4126 } 4127 } 4128 4129 void saveWorkspaceToDb() { 4130 saveWorkspaceScreenToDb((CellLayout) mLauncher.getHotseat().getLayout()); 4131 int count = getChildCount(); 4132 for (int i = 0; i < count; i++) { 4133 CellLayout cl = (CellLayout) getChildAt(i); 4134 saveWorkspaceScreenToDb(cl); 4135 } 4136 } 4137 4138 void saveWorkspaceScreenToDb(CellLayout cl) { 4139 int count = cl.getShortcutsAndWidgets().getChildCount(); 4140 4141 long screenId = getIdForScreen(cl); 4142 int container = Favorites.CONTAINER_DESKTOP; 4143 4144 Hotseat hotseat = mLauncher.getHotseat(); 4145 if (mLauncher.isHotseatLayout(cl)) { 4146 screenId = -1; 4147 container = Favorites.CONTAINER_HOTSEAT; 4148 } 4149 4150 for (int i = 0; i < count; i++) { 4151 View v = cl.getShortcutsAndWidgets().getChildAt(i); 4152 ItemInfo info = (ItemInfo) v.getTag(); 4153 // Null check required as the AllApps button doesn't have an item info 4154 if (info != null) { 4155 int cellX = info.cellX; 4156 int cellY = info.cellY; 4157 if (container == Favorites.CONTAINER_HOTSEAT) { 4158 cellX = hotseat.getCellXFromOrder((int) info.screenId); 4159 cellY = hotseat.getCellYFromOrder((int) info.screenId); 4160 } 4161 LauncherModel.addItemToDatabase(mLauncher, info, container, screenId, cellX, 4162 cellY, false); 4163 } 4164 if (v instanceof FolderIcon) { 4165 FolderIcon fi = (FolderIcon) v; 4166 fi.getFolder().addItemLocationsInDatabase(); 4167 } 4168 } 4169 } 4170 4171 @Override 4172 public boolean supportsFlingToDelete() { 4173 return true; 4174 } 4175 4176 @Override 4177 public void onFlingToDelete(DragObject d, int x, int y, PointF vec) { 4178 // Do nothing 4179 } 4180 4181 @Override 4182 public void onFlingToDeleteCompleted() { 4183 // Do nothing 4184 } 4185 4186 public boolean isDropEnabled() { 4187 return true; 4188 } 4189 4190 @Override 4191 protected void onRestoreInstanceState(Parcelable state) { 4192 super.onRestoreInstanceState(state); 4193 Launcher.setScreen(mCurrentPage); 4194 } 4195 4196 @Override 4197 protected void dispatchRestoreInstanceState(SparseArray<Parcelable> container) { 4198 // We don't dispatch restoreInstanceState to our children using this code path. 4199 // Some pages will be restored immediately as their items are bound immediately, and 4200 // others we will need to wait until after their items are bound. 4201 mSavedStates = container; 4202 } 4203 4204 public void restoreInstanceStateForChild(int child) { 4205 if (mSavedStates != null) { 4206 mRestoredPages.add(child); 4207 CellLayout cl = (CellLayout) getChildAt(child); 4208 cl.restoreInstanceState(mSavedStates); 4209 } 4210 } 4211 4212 public void restoreInstanceStateForRemainingPages() { 4213 int count = getChildCount(); 4214 for (int i = 0; i < count; i++) { 4215 if (!mRestoredPages.contains(i)) { 4216 restoreInstanceStateForChild(i); 4217 } 4218 } 4219 mRestoredPages.clear(); 4220 mSavedStates = null; 4221 } 4222 4223 @Override 4224 public void scrollLeft() { 4225 if (!isSmall() && !mIsSwitchingState) { 4226 super.scrollLeft(); 4227 } 4228 Folder openFolder = getOpenFolder(); 4229 if (openFolder != null) { 4230 openFolder.completeDragExit(); 4231 } 4232 } 4233 4234 @Override 4235 public void scrollRight() { 4236 if (!isSmall() && !mIsSwitchingState) { 4237 super.scrollRight(); 4238 } 4239 Folder openFolder = getOpenFolder(); 4240 if (openFolder != null) { 4241 openFolder.completeDragExit(); 4242 } 4243 } 4244 4245 @Override 4246 public boolean onEnterScrollArea(int x, int y, int direction) { 4247 // Ignore the scroll area if we are dragging over the hot seat 4248 boolean isPortrait = !LauncherAppState.isScreenLandscape(getContext()); 4249 if (mLauncher.getHotseat() != null && isPortrait) { 4250 Rect r = new Rect(); 4251 mLauncher.getHotseat().getHitRect(r); 4252 if (r.contains(x, y)) { 4253 return false; 4254 } 4255 } 4256 4257 boolean result = false; 4258 if (!isSmall() && !mIsSwitchingState && getOpenFolder() == null) { 4259 mInScrollArea = true; 4260 4261 final int page = getNextPage() + 4262 (direction == DragController.SCROLL_LEFT ? -1 : 1); 4263 // We always want to exit the current layout to ensure parity of enter / exit 4264 setCurrentDropLayout(null); 4265 4266 if (0 <= page && page < getChildCount()) { 4267 // Ensure that we are not dragging over to the custom content screen 4268 if (getScreenIdForPageIndex(page) == CUSTOM_CONTENT_SCREEN_ID) { 4269 return false; 4270 } 4271 4272 CellLayout layout = (CellLayout) getChildAt(page); 4273 setCurrentDragOverlappingLayout(layout); 4274 4275 // Workspace is responsible for drawing the edge glow on adjacent pages, 4276 // so we need to redraw the workspace when this may have changed. 4277 invalidate(); 4278 result = true; 4279 } 4280 } 4281 return result; 4282 } 4283 4284 @Override 4285 public boolean onExitScrollArea() { 4286 boolean result = false; 4287 if (mInScrollArea) { 4288 invalidate(); 4289 CellLayout layout = getCurrentDropLayout(); 4290 setCurrentDropLayout(layout); 4291 setCurrentDragOverlappingLayout(layout); 4292 4293 result = true; 4294 mInScrollArea = false; 4295 } 4296 return result; 4297 } 4298 4299 private void onResetScrollArea() { 4300 setCurrentDragOverlappingLayout(null); 4301 mInScrollArea = false; 4302 } 4303 4304 /** 4305 * Returns a specific CellLayout 4306 */ 4307 CellLayout getParentCellLayoutForView(View v) { 4308 ArrayList<CellLayout> layouts = getWorkspaceAndHotseatCellLayouts(); 4309 for (CellLayout layout : layouts) { 4310 if (layout.getShortcutsAndWidgets().indexOfChild(v) > -1) { 4311 return layout; 4312 } 4313 } 4314 return null; 4315 } 4316 4317 /** 4318 * Returns a list of all the CellLayouts in the workspace. 4319 */ 4320 ArrayList<CellLayout> getWorkspaceAndHotseatCellLayouts() { 4321 ArrayList<CellLayout> layouts = new ArrayList<CellLayout>(); 4322 int screenCount = getChildCount(); 4323 for (int screen = 0; screen < screenCount; screen++) { 4324 layouts.add(((CellLayout) getChildAt(screen))); 4325 } 4326 if (mLauncher.getHotseat() != null) { 4327 layouts.add(mLauncher.getHotseat().getLayout()); 4328 } 4329 return layouts; 4330 } 4331 4332 /** 4333 * We should only use this to search for specific children. Do not use this method to modify 4334 * ShortcutsAndWidgetsContainer directly. Includes ShortcutAndWidgetContainers from 4335 * the hotseat and workspace pages 4336 */ 4337 ArrayList<ShortcutAndWidgetContainer> getAllShortcutAndWidgetContainers() { 4338 ArrayList<ShortcutAndWidgetContainer> childrenLayouts = 4339 new ArrayList<ShortcutAndWidgetContainer>(); 4340 int screenCount = getChildCount(); 4341 for (int screen = 0; screen < screenCount; screen++) { 4342 childrenLayouts.add(((CellLayout) getChildAt(screen)).getShortcutsAndWidgets()); 4343 } 4344 if (mLauncher.getHotseat() != null) { 4345 childrenLayouts.add(mLauncher.getHotseat().getLayout().getShortcutsAndWidgets()); 4346 } 4347 return childrenLayouts; 4348 } 4349 4350 public Folder getFolderForTag(Object tag) { 4351 ArrayList<ShortcutAndWidgetContainer> childrenLayouts = 4352 getAllShortcutAndWidgetContainers(); 4353 for (ShortcutAndWidgetContainer layout: childrenLayouts) { 4354 int count = layout.getChildCount(); 4355 for (int i = 0; i < count; i++) { 4356 View child = layout.getChildAt(i); 4357 if (child instanceof Folder) { 4358 Folder f = (Folder) child; 4359 if (f.getInfo() == tag && f.getInfo().opened) { 4360 return f; 4361 } 4362 } 4363 } 4364 } 4365 return null; 4366 } 4367 4368 public View getViewForTag(Object tag) { 4369 ArrayList<ShortcutAndWidgetContainer> childrenLayouts = 4370 getAllShortcutAndWidgetContainers(); 4371 for (ShortcutAndWidgetContainer layout: childrenLayouts) { 4372 int count = layout.getChildCount(); 4373 for (int i = 0; i < count; i++) { 4374 View child = layout.getChildAt(i); 4375 if (child.getTag() == tag) { 4376 return child; 4377 } 4378 } 4379 } 4380 return null; 4381 } 4382 4383 void clearDropTargets() { 4384 ArrayList<ShortcutAndWidgetContainer> childrenLayouts = 4385 getAllShortcutAndWidgetContainers(); 4386 for (ShortcutAndWidgetContainer layout: childrenLayouts) { 4387 int childCount = layout.getChildCount(); 4388 for (int j = 0; j < childCount; j++) { 4389 View v = layout.getChildAt(j); 4390 if (v instanceof DropTarget) { 4391 mDragController.removeDropTarget((DropTarget) v); 4392 } 4393 } 4394 } 4395 } 4396 4397 // Removes ALL items that match a given package name, this is usually called when a package 4398 // has been removed and we want to remove all components (widgets, shortcuts, apps) that 4399 // belong to that package. 4400 void removeItemsByPackageName(final ArrayList<String> packages) { 4401 final HashSet<String> packageNames = new HashSet<String>(); 4402 packageNames.addAll(packages); 4403 4404 // Filter out all the ItemInfos that this is going to affect 4405 final HashSet<ItemInfo> infos = new HashSet<ItemInfo>(); 4406 final HashSet<ComponentName> cns = new HashSet<ComponentName>(); 4407 ArrayList<CellLayout> cellLayouts = getWorkspaceAndHotseatCellLayouts(); 4408 for (CellLayout layoutParent : cellLayouts) { 4409 ViewGroup layout = layoutParent.getShortcutsAndWidgets(); 4410 int childCount = layout.getChildCount(); 4411 for (int i = 0; i < childCount; ++i) { 4412 View view = layout.getChildAt(i); 4413 infos.add((ItemInfo) view.getTag()); 4414 } 4415 } 4416 LauncherModel.ItemInfoFilter filter = new LauncherModel.ItemInfoFilter() { 4417 @Override 4418 public boolean filterItem(ItemInfo parent, ItemInfo info, 4419 ComponentName cn) { 4420 if (packageNames.contains(cn.getPackageName())) { 4421 cns.add(cn); 4422 return true; 4423 } 4424 return false; 4425 } 4426 }; 4427 LauncherModel.filterItemInfos(infos, filter); 4428 4429 // Remove the affected components 4430 removeItemsByComponentName(cns); 4431 } 4432 4433 // Removes items that match the application info specified, when applications are removed 4434 // as a part of an update, this is called to ensure that other widgets and application 4435 // shortcuts are not removed. 4436 void removeItemsByApplicationInfo(final ArrayList<AppInfo> appInfos) { 4437 // Just create a hash table of all the specific components that this will affect 4438 HashSet<ComponentName> cns = new HashSet<ComponentName>(); 4439 for (AppInfo info : appInfos) { 4440 cns.add(info.componentName); 4441 } 4442 4443 // Remove all the things 4444 removeItemsByComponentName(cns); 4445 } 4446 4447 void removeItemsByComponentName(final HashSet<ComponentName> componentNames) { 4448 ArrayList<CellLayout> cellLayouts = getWorkspaceAndHotseatCellLayouts(); 4449 for (final CellLayout layoutParent: cellLayouts) { 4450 final ViewGroup layout = layoutParent.getShortcutsAndWidgets(); 4451 4452 final HashMap<ItemInfo, View> children = new HashMap<ItemInfo, View>(); 4453 for (int j = 0; j < layout.getChildCount(); j++) { 4454 final View view = layout.getChildAt(j); 4455 children.put((ItemInfo) view.getTag(), view); 4456 } 4457 4458 final ArrayList<View> childrenToRemove = new ArrayList<View>(); 4459 final HashMap<FolderInfo, ArrayList<ShortcutInfo>> folderAppsToRemove = 4460 new HashMap<FolderInfo, ArrayList<ShortcutInfo>>(); 4461 LauncherModel.ItemInfoFilter filter = new LauncherModel.ItemInfoFilter() { 4462 @Override 4463 public boolean filterItem(ItemInfo parent, ItemInfo info, 4464 ComponentName cn) { 4465 if (parent instanceof FolderInfo) { 4466 if (componentNames.contains(cn)) { 4467 FolderInfo folder = (FolderInfo) parent; 4468 ArrayList<ShortcutInfo> appsToRemove; 4469 if (folderAppsToRemove.containsKey(folder)) { 4470 appsToRemove = folderAppsToRemove.get(folder); 4471 } else { 4472 appsToRemove = new ArrayList<ShortcutInfo>(); 4473 folderAppsToRemove.put(folder, appsToRemove); 4474 } 4475 appsToRemove.add((ShortcutInfo) info); 4476 return true; 4477 } 4478 } else { 4479 if (componentNames.contains(cn)) { 4480 childrenToRemove.add(children.get(info)); 4481 return true; 4482 } 4483 } 4484 return false; 4485 } 4486 }; 4487 LauncherModel.filterItemInfos(children.keySet(), filter); 4488 4489 // Remove all the apps from their folders 4490 for (FolderInfo folder : folderAppsToRemove.keySet()) { 4491 ArrayList<ShortcutInfo> appsToRemove = folderAppsToRemove.get(folder); 4492 for (ShortcutInfo info : appsToRemove) { 4493 folder.remove(info); 4494 } 4495 } 4496 4497 // Remove all the other children 4498 for (View child : childrenToRemove) { 4499 // Note: We can not remove the view directly from CellLayoutChildren as this 4500 // does not re-mark the spaces as unoccupied. 4501 layoutParent.removeViewInLayout(child); 4502 if (child instanceof DropTarget) { 4503 mDragController.removeDropTarget((DropTarget) child); 4504 } 4505 } 4506 4507 if (childrenToRemove.size() > 0) { 4508 layout.requestLayout(); 4509 layout.invalidate(); 4510 } 4511 } 4512 4513 // Strip all the empty screens 4514 stripEmptyScreens(); 4515 } 4516 4517 private void updateShortcut(HashMap<ComponentName, AppInfo> appsMap, ItemInfo info, 4518 View child) { 4519 ComponentName cn = info.getIntent().getComponent(); 4520 if (cn != null) { 4521 AppInfo appInfo = appsMap.get(info.getIntent().getComponent()); 4522 if ((appInfo != null) && LauncherModel.isShortcutInfoUpdateable(info)) { 4523 ShortcutInfo shortcutInfo = (ShortcutInfo) info; 4524 BubbleTextView shortcut = (BubbleTextView) child; 4525 shortcutInfo.updateIcon(mIconCache); 4526 shortcutInfo.title = appInfo.title.toString(); 4527 shortcut.applyFromShortcutInfo(shortcutInfo, mIconCache); 4528 } 4529 } 4530 } 4531 4532 void updateShortcuts(ArrayList<AppInfo> apps) { 4533 // Create a map of the apps to test against 4534 final HashMap<ComponentName, AppInfo> appsMap = new HashMap<ComponentName, AppInfo>(); 4535 for (AppInfo ai : apps) { 4536 appsMap.put(ai.componentName, ai); 4537 } 4538 4539 ArrayList<ShortcutAndWidgetContainer> childrenLayouts = getAllShortcutAndWidgetContainers(); 4540 for (ShortcutAndWidgetContainer layout: childrenLayouts) { 4541 // Update all the children shortcuts 4542 final HashMap<ItemInfo, View> children = new HashMap<ItemInfo, View>(); 4543 for (int j = 0; j < layout.getChildCount(); j++) { 4544 View v = layout.getChildAt(j); 4545 ItemInfo info = (ItemInfo) v.getTag(); 4546 if (info instanceof FolderInfo && v instanceof FolderIcon) { 4547 FolderIcon folder = (FolderIcon) v; 4548 ArrayList<View> folderChildren = folder.getFolder().getItemsInReadingOrder(); 4549 for (View fv : folderChildren) { 4550 info = (ItemInfo) fv.getTag(); 4551 updateShortcut(appsMap, info, fv); 4552 } 4553 folder.invalidate(); 4554 } else if (info instanceof ShortcutInfo) { 4555 updateShortcut(appsMap, info, v); 4556 } 4557 } 4558 } 4559 } 4560 4561 private void moveToScreen(int page, boolean animate) { 4562 if (!isSmall()) { 4563 if (animate) { 4564 snapToPage(page); 4565 } else { 4566 setCurrentPage(page); 4567 } 4568 } 4569 View child = getChildAt(page); 4570 if (child != null) { 4571 child.requestFocus(); 4572 } 4573 } 4574 4575 void moveToDefaultScreen(boolean animate) { 4576 moveToScreen(mDefaultPage, animate); 4577 } 4578 4579 void moveToCustomContentScreen(boolean animate) { 4580 if (hasCustomContent()) { 4581 int ccIndex = getPageIndexForScreenId(CUSTOM_CONTENT_SCREEN_ID); 4582 if (animate) { 4583 snapToPage(ccIndex); 4584 } else { 4585 setCurrentPage(ccIndex); 4586 } 4587 View child = getChildAt(ccIndex); 4588 if (child != null) { 4589 child.requestFocus(); 4590 } 4591 } 4592 } 4593 4594 @Override 4595 protected PageIndicator.PageMarkerResources getPageIndicatorMarker(int pageIndex) { 4596 long screenId = getScreenIdForPageIndex(pageIndex); 4597 if (screenId == EXTRA_EMPTY_SCREEN_ID) { 4598 int count = mScreenOrder.size() - numCustomPages(); 4599 if (count > 1) { 4600 return new PageIndicator.PageMarkerResources(R.drawable.ic_pageindicator_current, 4601 R.drawable.ic_pageindicator_add); 4602 } 4603 } 4604 4605 return super.getPageIndicatorMarker(pageIndex); 4606 } 4607 4608 @Override 4609 public void syncPages() { 4610 } 4611 4612 @Override 4613 public void syncPageItems(int page, boolean immediate) { 4614 } 4615 4616 protected String getPageIndicatorDescription() { 4617 String settings = getResources().getString(R.string.settings_button_text); 4618 return getCurrentPageDescription() + ", " + settings; 4619 } 4620 4621 protected String getCurrentPageDescription() { 4622 int page = (mNextPage != INVALID_PAGE) ? mNextPage : mCurrentPage; 4623 int delta = numCustomPages(); 4624 if (hasCustomContent() && getNextPage() == 0) { 4625 return mCustomContentDescription; 4626 } 4627 return String.format(getContext().getString(R.string.workspace_scroll_format), 4628 page + 1 - delta, getChildCount() - delta); 4629 } 4630 4631 public void getLocationInDragLayer(int[] loc) { 4632 mLauncher.getDragLayer().getLocationInDragLayer(this, loc); 4633 } 4634} 4635