Workspace.java revision 82e5c98446e1f1765aabca1725cba181a56edcb4
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.AnimatorListenerAdapter; 21import android.animation.AnimatorSet; 22import android.animation.LayoutTransition; 23import android.animation.ObjectAnimator; 24import android.animation.TimeInterpolator; 25import android.animation.ValueAnimator; 26import android.animation.ValueAnimator.AnimatorUpdateListener; 27import android.app.WallpaperManager; 28import android.appwidget.AppWidgetHostView; 29import android.appwidget.AppWidgetProviderInfo; 30import android.content.ComponentName; 31import android.content.Context; 32import android.content.Intent; 33import android.content.SharedPreferences; 34import android.content.res.Resources; 35import android.content.res.TypedArray; 36import android.graphics.Bitmap; 37import android.graphics.Canvas; 38import android.graphics.Matrix; 39import android.graphics.Point; 40import android.graphics.PointF; 41import android.graphics.Rect; 42import android.graphics.Region.Op; 43import android.graphics.drawable.Drawable; 44import android.net.Uri; 45import android.os.IBinder; 46import android.os.Parcelable; 47import android.support.v4.view.ViewCompat; 48import android.util.AttributeSet; 49import android.util.Log; 50import android.util.SparseArray; 51import android.view.Choreographer; 52import android.view.Display; 53import android.view.MotionEvent; 54import android.view.View; 55import android.view.ViewGroup; 56import android.view.accessibility.AccessibilityEvent; 57import android.view.accessibility.AccessibilityManager; 58import android.view.accessibility.AccessibilityNodeInfo; 59import android.view.animation.DecelerateInterpolator; 60import android.view.animation.Interpolator; 61import android.widget.TextView; 62 63import com.android.launcher3.FolderIcon.FolderRingAnimator; 64import com.android.launcher3.Launcher.CustomContentCallbacks; 65import com.android.launcher3.LauncherSettings.Favorites; 66 67import java.util.ArrayList; 68import java.util.HashMap; 69import java.util.HashSet; 70import java.util.Iterator; 71 72/** 73 * The workspace is a wide area with a wallpaper and a finite number of pages. 74 * Each page contains a number of icons, folders or widgets the user can 75 * interact with. A workspace is meant to be used with a fixed width only. 76 */ 77public class Workspace extends SmoothPagedView 78 implements DropTarget, DragSource, DragScroller, View.OnTouchListener, 79 DragController.DragListener, LauncherTransitionable, ViewGroup.OnHierarchyChangeListener, 80 Insettable { 81 private static final String TAG = "Launcher.Workspace"; 82 83 // Y rotation to apply to the workspace screens 84 private static final float WORKSPACE_OVERSCROLL_ROTATION = 24f; 85 86 private static final int CHILDREN_OUTLINE_FADE_OUT_DELAY = 0; 87 private static final int CHILDREN_OUTLINE_FADE_OUT_DURATION = 375; 88 private static final int CHILDREN_OUTLINE_FADE_IN_DURATION = 100; 89 90 private static final int BACKGROUND_FADE_OUT_DURATION = 350; 91 private static final int ADJACENT_SCREEN_DROP_DURATION = 300; 92 private static final int FLING_THRESHOLD_VELOCITY = 500; 93 94 private static final float ALPHA_CUTOFF_THRESHOLD = 0.01f; 95 96 // These animators are used to fade the children's outlines 97 private ObjectAnimator mChildrenOutlineFadeInAnimation; 98 private ObjectAnimator mChildrenOutlineFadeOutAnimation; 99 private float mChildrenOutlineAlpha = 0; 100 101 // These properties refer to the background protection gradient used for AllApps and Customize 102 private ValueAnimator mBackgroundFadeInAnimation; 103 private ValueAnimator mBackgroundFadeOutAnimation; 104 private Drawable mBackground; 105 boolean mDrawBackground = true; 106 private float mBackgroundAlpha = 0; 107 108 private static final long CUSTOM_CONTENT_GESTURE_DELAY = 200; 109 private long mTouchDownTime = -1; 110 private long mCustomContentShowTime = -1; 111 112 private LayoutTransition mLayoutTransition; 113 private final WallpaperManager mWallpaperManager; 114 private IBinder mWindowToken; 115 116 private int mOriginalDefaultPage; 117 private int mDefaultPage; 118 119 private ShortcutAndWidgetContainer mDragSourceInternal; 120 private static boolean sAccessibilityEnabled; 121 122 // The screen id used for the empty screen always present to the right. 123 private final static long EXTRA_EMPTY_SCREEN_ID = -201; 124 private final static long CUSTOM_CONTENT_SCREEN_ID = -301; 125 126 private HashMap<Long, CellLayout> mWorkspaceScreens = new HashMap<Long, CellLayout>(); 127 private ArrayList<Long> mScreenOrder = new ArrayList<Long>(); 128 129 /** 130 * CellInfo for the cell that is currently being dragged 131 */ 132 private CellLayout.CellInfo mDragInfo; 133 134 /** 135 * Target drop area calculated during last acceptDrop call. 136 */ 137 private int[] mTargetCell = new int[2]; 138 private int mDragOverX = -1; 139 private int mDragOverY = -1; 140 141 static Rect mLandscapeCellLayoutMetrics = null; 142 static Rect mPortraitCellLayoutMetrics = null; 143 144 CustomContentCallbacks mCustomContentCallbacks; 145 boolean mCustomContentShowing; 146 private float mLastCustomContentScrollProgress = -1f; 147 private String mCustomContentDescription = ""; 148 149 /** 150 * The CellLayout that is currently being dragged over 151 */ 152 private CellLayout mDragTargetLayout = null; 153 /** 154 * The CellLayout that we will show as glowing 155 */ 156 private CellLayout mDragOverlappingLayout = null; 157 158 /** 159 * The CellLayout which will be dropped to 160 */ 161 private CellLayout mDropToLayout = null; 162 163 private Launcher mLauncher; 164 private IconCache mIconCache; 165 private DragController mDragController; 166 167 // These are temporary variables to prevent having to allocate a new object just to 168 // return an (x, y) value from helper functions. Do NOT use them to maintain other state. 169 private int[] mTempCell = new int[2]; 170 private int[] mTempPt = new int[2]; 171 private int[] mTempEstimate = new int[2]; 172 private float[] mDragViewVisualCenter = new float[2]; 173 private float[] mTempCellLayoutCenterCoordinates = new float[2]; 174 private Matrix mTempInverseMatrix = new Matrix(); 175 176 private SpringLoadedDragController mSpringLoadedDragController; 177 private float mSpringLoadedShrinkFactor; 178 private float mOverviewModeShrinkFactor; 179 private int mOverviewModePageOffset; 180 181 // State variable that indicates whether the pages are small (ie when you're 182 // in all apps or customize mode) 183 184 enum State { NORMAL, SPRING_LOADED, SMALL, OVERVIEW}; 185 private State mState = State.NORMAL; 186 private boolean mIsSwitchingState = false; 187 188 boolean mAnimatingViewIntoPlace = false; 189 boolean mIsDragOccuring = false; 190 boolean mChildrenLayersEnabled = true; 191 192 private boolean mStripScreensOnPageStopMoving = false; 193 194 /** Is the user is dragging an item near the edge of a page? */ 195 private boolean mInScrollArea = false; 196 197 private HolographicOutlineHelper mOutlineHelper; 198 private Bitmap mDragOutline = null; 199 private final Rect mTempRect = new Rect(); 200 private final int[] mTempXY = new int[2]; 201 private int[] mTempVisiblePagesRange = new int[2]; 202 private boolean mOverscrollTransformsSet; 203 private float mLastOverscrollPivotX; 204 public static final int DRAG_BITMAP_PADDING = 2; 205 private boolean mWorkspaceFadeInAdjacentScreens; 206 207 WallpaperOffsetInterpolator mWallpaperOffset; 208 private Runnable mDelayedResizeRunnable; 209 private Runnable mDelayedSnapToPageRunnable; 210 private Point mDisplaySize = new Point(); 211 private int mCameraDistance; 212 213 // Variables relating to the creation of user folders by hovering shortcuts over shortcuts 214 private static final int FOLDER_CREATION_TIMEOUT = 0; 215 private static final int REORDER_TIMEOUT = 250; 216 private final Alarm mFolderCreationAlarm = new Alarm(); 217 private final Alarm mReorderAlarm = new Alarm(); 218 private FolderRingAnimator mDragFolderRingAnimator = null; 219 private FolderIcon mDragOverFolderIcon = null; 220 private boolean mCreateUserFolderOnDrop = false; 221 private boolean mAddToExistingFolderOnDrop = false; 222 private DropTarget.DragEnforcer mDragEnforcer; 223 private float mMaxDistanceForFolderCreation; 224 225 // Variables relating to touch disambiguation (scrolling workspace vs. scrolling a widget) 226 private float mXDown; 227 private float mYDown; 228 final static float START_DAMPING_TOUCH_SLOP_ANGLE = (float) Math.PI / 6; 229 final static float MAX_SWIPE_ANGLE = (float) Math.PI / 3; 230 final static float TOUCH_SLOP_DAMPING_FACTOR = 4; 231 232 // Relating to the animation of items being dropped externally 233 public static final int ANIMATE_INTO_POSITION_AND_DISAPPEAR = 0; 234 public static final int ANIMATE_INTO_POSITION_AND_REMAIN = 1; 235 public static final int ANIMATE_INTO_POSITION_AND_RESIZE = 2; 236 public static final int COMPLETE_TWO_STAGE_WIDGET_DROP_ANIMATION = 3; 237 public static final int CANCEL_TWO_STAGE_WIDGET_DROP_ANIMATION = 4; 238 239 // Related to dragging, folder creation and reordering 240 private static final int DRAG_MODE_NONE = 0; 241 private static final int DRAG_MODE_CREATE_FOLDER = 1; 242 private static final int DRAG_MODE_ADD_TO_FOLDER = 2; 243 private static final int DRAG_MODE_REORDER = 3; 244 private int mDragMode = DRAG_MODE_NONE; 245 private int mLastReorderX = -1; 246 private int mLastReorderY = -1; 247 248 private SparseArray<Parcelable> mSavedStates; 249 private final ArrayList<Integer> mRestoredPages = new ArrayList<Integer>(); 250 251 // These variables are used for storing the initial and final values during workspace animations 252 private int mSavedScrollX; 253 private float mSavedRotationY; 254 private float mSavedTranslationX; 255 256 private float mCurrentScale; 257 private float mNewScale; 258 private float[] mOldBackgroundAlphas; 259 private float[] mOldAlphas; 260 private float[] mNewBackgroundAlphas; 261 private float[] mNewAlphas; 262 private int mLastChildCount = -1; 263 private float mTransitionProgress; 264 265 private Runnable mDeferredAction; 266 private boolean mDeferDropAfterUninstall; 267 private boolean mUninstallSuccessful; 268 269 private final Runnable mBindPages = new Runnable() { 270 @Override 271 public void run() { 272 mLauncher.getModel().bindRemainingSynchronousPages(); 273 } 274 }; 275 276 /** 277 * Used to inflate the Workspace from XML. 278 * 279 * @param context The application's context. 280 * @param attrs The attributes set containing the Workspace's customization values. 281 */ 282 public Workspace(Context context, AttributeSet attrs) { 283 this(context, attrs, 0); 284 } 285 286 /** 287 * Used to inflate the Workspace from XML. 288 * 289 * @param context The application's context. 290 * @param attrs The attributes set containing the Workspace's customization values. 291 * @param defStyle Unused. 292 */ 293 public Workspace(Context context, AttributeSet attrs, int defStyle) { 294 super(context, attrs, defStyle); 295 mContentIsRefreshable = false; 296 297 mOutlineHelper = HolographicOutlineHelper.obtain(context); 298 299 mDragEnforcer = new DropTarget.DragEnforcer(context); 300 // With workspace, data is available straight from the get-go 301 setDataIsReady(); 302 303 mLauncher = (Launcher) context; 304 final Resources res = getResources(); 305 mWorkspaceFadeInAdjacentScreens = res.getBoolean(R.bool.config_workspaceFadeAdjacentScreens); 306 mFadeInAdjacentScreens = false; 307 mWallpaperManager = WallpaperManager.getInstance(context); 308 309 TypedArray a = context.obtainStyledAttributes(attrs, 310 R.styleable.Workspace, defStyle, 0); 311 mSpringLoadedShrinkFactor = 312 res.getInteger(R.integer.config_workspaceSpringLoadShrinkPercentage) / 100.0f; 313 mOverviewModeShrinkFactor = 314 res.getInteger(R.integer.config_workspaceOverviewShrinkPercentage) / 100.0f; 315 mOverviewModePageOffset = res.getDimensionPixelSize(R.dimen.overview_mode_page_offset); 316 mCameraDistance = res.getInteger(R.integer.config_cameraDistance); 317 mOriginalDefaultPage = mDefaultPage = a.getInt(R.styleable.Workspace_defaultScreen, 1); 318 a.recycle(); 319 320 setOnHierarchyChangeListener(this); 321 setHapticFeedbackEnabled(false); 322 323 initWorkspace(); 324 325 // Disable multitouch across the workspace/all apps/customize tray 326 setMotionEventSplittingEnabled(true); 327 setImportantForAccessibility(View.IMPORTANT_FOR_ACCESSIBILITY_YES); 328 } 329 330 @Override 331 public void setInsets(Rect insets) { 332 mInsets.set(insets); 333 } 334 335 // estimate the size of a widget with spans hSpan, vSpan. return MAX_VALUE for each 336 // dimension if unsuccessful 337 public int[] estimateItemSize(int hSpan, int vSpan, 338 ItemInfo itemInfo, boolean springLoaded) { 339 int[] size = new int[2]; 340 if (getChildCount() > 0) { 341 // Use the first non-custom page to estimate the child position 342 CellLayout cl = (CellLayout) getChildAt(numCustomPages()); 343 Rect r = estimateItemPosition(cl, itemInfo, 0, 0, hSpan, vSpan); 344 size[0] = r.width(); 345 size[1] = r.height(); 346 if (springLoaded) { 347 size[0] *= mSpringLoadedShrinkFactor; 348 size[1] *= mSpringLoadedShrinkFactor; 349 } 350 return size; 351 } else { 352 size[0] = Integer.MAX_VALUE; 353 size[1] = Integer.MAX_VALUE; 354 return size; 355 } 356 } 357 358 public Rect estimateItemPosition(CellLayout cl, ItemInfo pendingInfo, 359 int hCell, int vCell, int hSpan, int vSpan) { 360 Rect r = new Rect(); 361 cl.cellToRect(hCell, vCell, hSpan, vSpan, r); 362 return r; 363 } 364 365 public void onDragStart(final DragSource source, Object info, int dragAction) { 366 mIsDragOccuring = true; 367 updateChildrenLayersEnabled(false); 368 mLauncher.lockScreenOrientation(); 369 mLauncher.onInteractionBegin(); 370 setChildrenBackgroundAlphaMultipliers(1f); 371 // Prevent any Un/InstallShortcutReceivers from updating the db while we are dragging 372 InstallShortcutReceiver.enableInstallQueue(); 373 UninstallShortcutReceiver.enableUninstallQueue(); 374 post(new Runnable() { 375 @Override 376 public void run() { 377 if (mIsDragOccuring) { 378 addExtraEmptyScreenOnDrag(); 379 } 380 } 381 }); 382 } 383 384 public void onDragEnd() { 385 mIsDragOccuring = false; 386 updateChildrenLayersEnabled(false); 387 mLauncher.unlockScreenOrientation(false); 388 389 // Re-enable any Un/InstallShortcutReceiver and now process any queued items 390 InstallShortcutReceiver.disableAndFlushInstallQueue(getContext()); 391 UninstallShortcutReceiver.disableAndFlushUninstallQueue(getContext()); 392 393 removeExtraEmptyScreen(); 394 mDragSourceInternal = null; 395 mLauncher.onInteractionEnd(); 396 } 397 398 /** 399 * Initializes various states for this workspace. 400 */ 401 protected void initWorkspace() { 402 Context context = getContext(); 403 mCurrentPage = mDefaultPage; 404 Launcher.setScreen(mCurrentPage); 405 LauncherAppState app = LauncherAppState.getInstance(); 406 DeviceProfile grid = app.getDynamicGrid().getDeviceProfile(); 407 mIconCache = app.getIconCache(); 408 setWillNotDraw(false); 409 setClipChildren(false); 410 setClipToPadding(false); 411 setChildrenDrawnWithCacheEnabled(true); 412 413 // This is a bit of a hack to account for the fact that we translate the workspace 414 // up a bit, and still need to draw the background covering the whole screen. 415 setMinScale(mOverviewModeShrinkFactor - 0.2f); 416 setupLayoutTransition(); 417 418 final Resources res = getResources(); 419 try { 420 mBackground = res.getDrawable(R.drawable.apps_customize_bg); 421 } catch (Resources.NotFoundException e) { 422 // In this case, we will skip drawing background protection 423 } 424 425 mWallpaperOffset = new WallpaperOffsetInterpolator(); 426 Display display = mLauncher.getWindowManager().getDefaultDisplay(); 427 display.getSize(mDisplaySize); 428 429 mMaxDistanceForFolderCreation = (0.55f * grid.iconSizePx); 430 mFlingThresholdVelocity = (int) (FLING_THRESHOLD_VELOCITY * mDensity); 431 } 432 433 private void setupLayoutTransition() { 434 // We want to show layout transitions when pages are deleted, to close the gap. 435 mLayoutTransition = new LayoutTransition(); 436 mLayoutTransition.enableTransitionType(LayoutTransition.DISAPPEARING); 437 mLayoutTransition.enableTransitionType(LayoutTransition.CHANGE_DISAPPEARING); 438 mLayoutTransition.disableTransitionType(LayoutTransition.APPEARING); 439 mLayoutTransition.disableTransitionType(LayoutTransition.CHANGE_APPEARING); 440 setLayoutTransition(mLayoutTransition); 441 } 442 443 @Override 444 protected int getScrollMode() { 445 return SmoothPagedView.X_LARGE_MODE; 446 } 447 448 @Override 449 public void onChildViewAdded(View parent, View child) { 450 if (!(child instanceof CellLayout)) { 451 throw new IllegalArgumentException("A Workspace can only have CellLayout children."); 452 } 453 CellLayout cl = ((CellLayout) child); 454 cl.setOnInterceptTouchListener(this); 455 cl.setClickable(true); 456 cl.setImportantForAccessibility(ViewCompat.IMPORTANT_FOR_ACCESSIBILITY_NO); 457 super.onChildViewAdded(parent, child); 458 } 459 460 protected boolean shouldDrawChild(View child) { 461 final CellLayout cl = (CellLayout) child; 462 return super.shouldDrawChild(child) && 463 (mIsSwitchingState || 464 cl.getShortcutsAndWidgets().getAlpha() > 0 || 465 cl.getBackgroundAlpha() > 0); 466 } 467 468 /** 469 * @return The open folder on the current screen, or null if there is none 470 */ 471 Folder getOpenFolder() { 472 DragLayer dragLayer = mLauncher.getDragLayer(); 473 int count = dragLayer.getChildCount(); 474 for (int i = 0; i < count; i++) { 475 View child = dragLayer.getChildAt(i); 476 if (child instanceof Folder) { 477 Folder folder = (Folder) child; 478 if (folder.getInfo().opened) 479 return folder; 480 } 481 } 482 return null; 483 } 484 485 boolean isTouchActive() { 486 return mTouchState != TOUCH_STATE_REST; 487 } 488 489 public void removeAllWorkspaceScreens() { 490 // Remove the pages and clear the screen models 491 removeAllViews(); 492 mScreenOrder.clear(); 493 mWorkspaceScreens.clear(); 494 } 495 496 public long insertNewWorkspaceScreenBeforeEmptyScreen(long screenId) { 497 // Find the index to insert this view into. If the empty screen exists, then 498 // insert it before that. 499 int insertIndex = mScreenOrder.indexOf(EXTRA_EMPTY_SCREEN_ID); 500 if (insertIndex < 0) { 501 insertIndex = mScreenOrder.size(); 502 } 503 return insertNewWorkspaceScreen(screenId, insertIndex); 504 } 505 506 public long insertNewWorkspaceScreen(long screenId) { 507 return insertNewWorkspaceScreen(screenId, getChildCount()); 508 } 509 510 public long insertNewWorkspaceScreen(long screenId, int insertIndex) { 511 if (mWorkspaceScreens.containsKey(screenId)) { 512 throw new RuntimeException("Screen id " + screenId + " already exists!"); 513 } 514 515 CellLayout newScreen = (CellLayout) 516 mLauncher.getLayoutInflater().inflate(R.layout.workspace_screen, null); 517 518 newScreen.setOnLongClickListener(mLongClickListener); 519 newScreen.setOnClickListener(mLauncher); 520 newScreen.setSoundEffectsEnabled(false); 521 mWorkspaceScreens.put(screenId, newScreen); 522 mScreenOrder.add(insertIndex, screenId); 523 addView(newScreen, insertIndex); 524 return screenId; 525 } 526 527 public void createCustomContentPage() { 528 CellLayout customScreen = (CellLayout) 529 mLauncher.getLayoutInflater().inflate(R.layout.workspace_screen, null); 530 531 mWorkspaceScreens.put(CUSTOM_CONTENT_SCREEN_ID, customScreen); 532 mScreenOrder.add(0, CUSTOM_CONTENT_SCREEN_ID); 533 534 // We want no padding on the custom content 535 customScreen.setPadding(0, 0, 0, 0); 536 537 addFullScreenPage(customScreen); 538 539 // Ensure that the current page and default page are maintained. 540 mDefaultPage = mOriginalDefaultPage + 1; 541 setCurrentPage(getCurrentPage() + 1); 542 543 // Update the custom content hint 544 mLauncher.updateCustomContentHintVisibility(); 545 } 546 547 public void removeCustomContentPage() { 548 CellLayout customScreen = getScreenWithId(CUSTOM_CONTENT_SCREEN_ID); 549 if (customScreen == null) { 550 throw new RuntimeException("Expected custom content screen to exist"); 551 } 552 553 mWorkspaceScreens.remove(CUSTOM_CONTENT_SCREEN_ID); 554 mScreenOrder.remove(CUSTOM_CONTENT_SCREEN_ID); 555 removeView(customScreen); 556 mCustomContentCallbacks = null; 557 558 // Ensure that the current page and default page are maintained. 559 mDefaultPage = mOriginalDefaultPage - 1; 560 setCurrentPage(getCurrentPage() - 1); 561 562 // Update the custom content hint 563 mLauncher.updateCustomContentHintVisibility(); 564 } 565 566 public void addToCustomContentPage(View customContent, CustomContentCallbacks callbacks, 567 String description) { 568 if (getPageIndexForScreenId(CUSTOM_CONTENT_SCREEN_ID) < 0) { 569 throw new RuntimeException("Expected custom content screen to exist"); 570 } 571 572 // Add the custom content to the full screen custom page 573 CellLayout customScreen = getScreenWithId(CUSTOM_CONTENT_SCREEN_ID); 574 int spanX = customScreen.getCountX(); 575 int spanY = customScreen.getCountY(); 576 CellLayout.LayoutParams lp = new CellLayout.LayoutParams(0, 0, spanX, spanY); 577 lp.canReorder = false; 578 lp.isFullscreen = true; 579 if (customContent instanceof Insettable) { 580 ((Insettable)customContent).setInsets(mInsets); 581 } 582 customScreen.removeAllViews(); 583 customScreen.addViewToCellLayout(customContent, 0, 0, lp, true); 584 mCustomContentDescription = description; 585 586 mCustomContentCallbacks = callbacks; 587 } 588 589 public void addExtraEmptyScreenOnDrag() { 590 boolean lastChildOnScreen = false; 591 boolean childOnFinalScreen = false; 592 593 if (mDragSourceInternal != null) { 594 if (mDragSourceInternal.getChildCount() == 1) { 595 lastChildOnScreen = true; 596 } 597 CellLayout cl = (CellLayout) mDragSourceInternal.getParent(); 598 if (indexOfChild(cl) == getChildCount() - 1) { 599 childOnFinalScreen = true; 600 } 601 } 602 603 // If this is the last item on the final screen 604 if (lastChildOnScreen && childOnFinalScreen) { 605 return; 606 } 607 if (!mWorkspaceScreens.containsKey(EXTRA_EMPTY_SCREEN_ID)) { 608 insertNewWorkspaceScreen(EXTRA_EMPTY_SCREEN_ID); 609 } 610 } 611 612 public boolean addExtraEmptyScreen() { 613 if (!mWorkspaceScreens.containsKey(EXTRA_EMPTY_SCREEN_ID)) { 614 insertNewWorkspaceScreen(EXTRA_EMPTY_SCREEN_ID); 615 return true; 616 } 617 return false; 618 } 619 620 public void removeExtraEmptyScreen() { 621 if (hasExtraEmptyScreen()) { 622 CellLayout cl = mWorkspaceScreens.get(EXTRA_EMPTY_SCREEN_ID); 623 mWorkspaceScreens.remove(EXTRA_EMPTY_SCREEN_ID); 624 mScreenOrder.remove(EXTRA_EMPTY_SCREEN_ID); 625 removeView(cl); 626 } 627 } 628 629 public boolean hasExtraEmptyScreen() { 630 int nScreens = getChildCount(); 631 nScreens = nScreens - numCustomPages(); 632 return mWorkspaceScreens.containsKey(EXTRA_EMPTY_SCREEN_ID) && nScreens > 1; 633 } 634 635 public long commitExtraEmptyScreen() { 636 int index = getPageIndexForScreenId(EXTRA_EMPTY_SCREEN_ID); 637 CellLayout cl = mWorkspaceScreens.get(EXTRA_EMPTY_SCREEN_ID); 638 mWorkspaceScreens.remove(EXTRA_EMPTY_SCREEN_ID); 639 mScreenOrder.remove(EXTRA_EMPTY_SCREEN_ID); 640 641 long newId = LauncherAppState.getLauncherProvider().generateNewScreenId(); 642 mWorkspaceScreens.put(newId, cl); 643 mScreenOrder.add(newId); 644 645 // Update the page indicator marker 646 if (getPageIndicator() != null) { 647 getPageIndicator().updateMarker(index, getPageIndicatorMarker(index)); 648 } 649 650 // Update the model for the new screen 651 mLauncher.getModel().updateWorkspaceScreenOrder(mLauncher, mScreenOrder); 652 653 return newId; 654 } 655 656 public CellLayout getScreenWithId(long screenId) { 657 CellLayout layout = mWorkspaceScreens.get(screenId); 658 return layout; 659 } 660 661 public long getIdForScreen(CellLayout layout) { 662 Iterator<Long> iter = mWorkspaceScreens.keySet().iterator(); 663 while (iter.hasNext()) { 664 long id = iter.next(); 665 if (mWorkspaceScreens.get(id) == layout) { 666 return id; 667 } 668 } 669 return -1; 670 } 671 672 public int getPageIndexForScreenId(long screenId) { 673 return indexOfChild(mWorkspaceScreens.get(screenId)); 674 } 675 676 public long getScreenIdForPageIndex(int index) { 677 if (0 <= index && index < mScreenOrder.size()) { 678 return mScreenOrder.get(index); 679 } 680 return -1; 681 } 682 683 ArrayList<Long> getScreenOrder() { 684 return mScreenOrder; 685 } 686 687 public void stripEmptyScreens() { 688 if (isPageMoving()) { 689 mStripScreensOnPageStopMoving = true; 690 return; 691 } 692 693 int currentPage = getNextPage(); 694 ArrayList<Long> removeScreens = new ArrayList<Long>(); 695 for (Long id: mWorkspaceScreens.keySet()) { 696 CellLayout cl = mWorkspaceScreens.get(id); 697 if (id >= 0 && cl.getShortcutsAndWidgets().getChildCount() == 0) { 698 removeScreens.add(id); 699 } 700 } 701 702 // We enforce at least one page to add new items to. In the case that we remove the last 703 // such screen, we convert the last screen to the empty screen 704 int minScreens = 1 + numCustomPages(); 705 706 int pageShift = 0; 707 for (Long id: removeScreens) { 708 CellLayout cl = mWorkspaceScreens.get(id); 709 mWorkspaceScreens.remove(id); 710 mScreenOrder.remove(id); 711 712 if (getChildCount() > minScreens) { 713 if (indexOfChild(cl) < currentPage) { 714 pageShift++; 715 } 716 removeView(cl); 717 } else { 718 // if this is the last non-custom content screen, convert it to the empty screen 719 mWorkspaceScreens.put(EXTRA_EMPTY_SCREEN_ID, cl); 720 mScreenOrder.add(EXTRA_EMPTY_SCREEN_ID); 721 } 722 } 723 724 if (!removeScreens.isEmpty()) { 725 // Update the model if we have changed any screens 726 mLauncher.getModel().updateWorkspaceScreenOrder(mLauncher, mScreenOrder); 727 } 728 729 if (pageShift >= 0) { 730 setCurrentPage(currentPage - pageShift); 731 } 732 } 733 734 // See implementation for parameter definition. 735 void addInScreen(View child, long container, long screenId, 736 int x, int y, int spanX, int spanY) { 737 addInScreen(child, container, screenId, x, y, spanX, spanY, false, false); 738 } 739 740 // At bind time, we use the rank (screenId) to compute x and y for hotseat items. 741 // See implementation for parameter definition. 742 void addInScreenFromBind(View child, long container, long screenId, int x, int y, 743 int spanX, int spanY) { 744 addInScreen(child, container, screenId, x, y, spanX, spanY, false, true); 745 } 746 747 // See implementation for parameter definition. 748 void addInScreen(View child, long container, long screenId, int x, int y, int spanX, int spanY, 749 boolean insert) { 750 addInScreen(child, container, screenId, x, y, spanX, spanY, insert, false); 751 } 752 753 /** 754 * Adds the specified child in the specified screen. The position and dimension of 755 * the child are defined by x, y, spanX and spanY. 756 * 757 * @param child The child to add in one of the workspace's screens. 758 * @param screenId The screen in which to add the child. 759 * @param x The X position of the child in the screen's grid. 760 * @param y The Y position of the child in the screen's grid. 761 * @param spanX The number of cells spanned horizontally by the child. 762 * @param spanY The number of cells spanned vertically by the child. 763 * @param insert When true, the child is inserted at the beginning of the children list. 764 * @param computeXYFromRank When true, we use the rank (stored in screenId) to compute 765 * the x and y position in which to place hotseat items. Otherwise 766 * we use the x and y position to compute the rank. 767 */ 768 void addInScreen(View child, long container, long screenId, int x, int y, int spanX, int spanY, 769 boolean insert, boolean computeXYFromRank) { 770 if (container == LauncherSettings.Favorites.CONTAINER_DESKTOP) { 771 if (getScreenWithId(screenId) == null) { 772 Log.e(TAG, "Skipping child, screenId " + screenId + " not found"); 773 // DEBUGGING - Print out the stack trace to see where we are adding from 774 new Throwable().printStackTrace(); 775 return; 776 } 777 } 778 if (screenId == EXTRA_EMPTY_SCREEN_ID) { 779 // This should never happen 780 throw new RuntimeException("Screen id should not be EXTRA_EMPTY_SCREEN_ID"); 781 } 782 783 final CellLayout layout; 784 if (container == LauncherSettings.Favorites.CONTAINER_HOTSEAT) { 785 layout = mLauncher.getHotseat().getLayout(); 786 child.setOnKeyListener(null); 787 788 // Hide folder title in the hotseat 789 if (child instanceof FolderIcon) { 790 ((FolderIcon) child).setTextVisible(false); 791 } 792 793 if (computeXYFromRank) { 794 x = mLauncher.getHotseat().getCellXFromOrder((int) screenId); 795 y = mLauncher.getHotseat().getCellYFromOrder((int) screenId); 796 } else { 797 screenId = mLauncher.getHotseat().getOrderInHotseat(x, y); 798 } 799 } else { 800 // Show folder title if not in the hotseat 801 if (child instanceof FolderIcon) { 802 ((FolderIcon) child).setTextVisible(true); 803 } 804 layout = getScreenWithId(screenId); 805 child.setOnKeyListener(new IconKeyEventListener()); 806 } 807 808 ViewGroup.LayoutParams genericLp = child.getLayoutParams(); 809 CellLayout.LayoutParams lp; 810 if (genericLp == null || !(genericLp instanceof CellLayout.LayoutParams)) { 811 lp = new CellLayout.LayoutParams(x, y, spanX, spanY); 812 } else { 813 lp = (CellLayout.LayoutParams) genericLp; 814 lp.cellX = x; 815 lp.cellY = y; 816 lp.cellHSpan = spanX; 817 lp.cellVSpan = spanY; 818 } 819 820 if (spanX < 0 && spanY < 0) { 821 lp.isLockedToGrid = false; 822 } 823 824 // Get the canonical child id to uniquely represent this view in this screen 825 int childId = LauncherModel.getCellLayoutChildId(container, screenId, x, y, spanX, spanY); 826 boolean markCellsAsOccupied = !(child instanceof Folder); 827 if (!layout.addViewToCellLayout(child, insert ? 0 : -1, childId, lp, markCellsAsOccupied)) { 828 // TODO: This branch occurs when the workspace is adding views 829 // outside of the defined grid 830 // maybe we should be deleting these items from the LauncherModel? 831 Launcher.addDumpLog(TAG, "Failed to add to item at (" + lp.cellX + "," + lp.cellY + ") to CellLayout", true); 832 } 833 834 if (!(child instanceof Folder)) { 835 child.setHapticFeedbackEnabled(false); 836 child.setOnLongClickListener(mLongClickListener); 837 } 838 if (child instanceof DropTarget) { 839 mDragController.addDropTarget((DropTarget) child); 840 } 841 } 842 843 /** 844 * Called directly from a CellLayout (not by the framework), after we've been added as a 845 * listener via setOnInterceptTouchEventListener(). This allows us to tell the CellLayout 846 * that it should intercept touch events, which is not something that is normally supported. 847 */ 848 @Override 849 public boolean onTouch(View v, MotionEvent event) { 850 return (isSmall() || !isFinishedSwitchingState()) 851 || (!isSmall() && indexOfChild(v) != mCurrentPage); 852 } 853 854 public boolean isSwitchingState() { 855 return mIsSwitchingState; 856 } 857 858 /** This differs from isSwitchingState in that we take into account how far the transition 859 * has completed. */ 860 public boolean isFinishedSwitchingState() { 861 return !mIsSwitchingState || (mTransitionProgress > 0.5f); 862 } 863 864 protected void onWindowVisibilityChanged (int visibility) { 865 mLauncher.onWindowVisibilityChanged(visibility); 866 } 867 868 @Override 869 public boolean dispatchUnhandledMove(View focused, int direction) { 870 if (isSmall() || !isFinishedSwitchingState()) { 871 // when the home screens are shrunken, shouldn't allow side-scrolling 872 return false; 873 } 874 return super.dispatchUnhandledMove(focused, direction); 875 } 876 877 @Override 878 public boolean onInterceptTouchEvent(MotionEvent ev) { 879 switch (ev.getAction() & MotionEvent.ACTION_MASK) { 880 case MotionEvent.ACTION_DOWN: 881 mXDown = ev.getX(); 882 mYDown = ev.getY(); 883 mTouchDownTime = System.currentTimeMillis(); 884 break; 885 case MotionEvent.ACTION_POINTER_UP: 886 case MotionEvent.ACTION_UP: 887 if (mTouchState == TOUCH_STATE_REST) { 888 final CellLayout currentPage = (CellLayout) getChildAt(mCurrentPage); 889 if (!currentPage.lastDownOnOccupiedCell()) { 890 onWallpaperTap(ev); 891 } 892 } 893 } 894 return super.onInterceptTouchEvent(ev); 895 } 896 897 protected void reinflateWidgetsIfNecessary() { 898 final int clCount = getChildCount(); 899 for (int i = 0; i < clCount; i++) { 900 CellLayout cl = (CellLayout) getChildAt(i); 901 ShortcutAndWidgetContainer swc = cl.getShortcutsAndWidgets(); 902 final int itemCount = swc.getChildCount(); 903 for (int j = 0; j < itemCount; j++) { 904 View v = swc.getChildAt(j); 905 906 if (v.getTag() instanceof LauncherAppWidgetInfo) { 907 LauncherAppWidgetInfo info = (LauncherAppWidgetInfo) v.getTag(); 908 LauncherAppWidgetHostView lahv = (LauncherAppWidgetHostView) info.hostView; 909 if (lahv != null && lahv.orientationChangedSincedInflation()) { 910 mLauncher.removeAppWidget(info); 911 // Remove the current widget which is inflated with the wrong orientation 912 cl.removeView(lahv); 913 mLauncher.bindAppWidget(info); 914 } 915 } 916 } 917 } 918 } 919 920 @Override 921 protected void determineScrollingStart(MotionEvent ev) { 922 if (!isFinishedSwitchingState()) return; 923 924 float deltaX = ev.getX() - mXDown; 925 float absDeltaX = Math.abs(deltaX); 926 float absDeltaY = Math.abs(ev.getY() - mYDown); 927 928 if (Float.compare(absDeltaX, 0f) == 0) return; 929 930 float slope = absDeltaY / absDeltaX; 931 float theta = (float) Math.atan(slope); 932 933 if (absDeltaX > mTouchSlop || absDeltaY > mTouchSlop) { 934 cancelCurrentPageLongPress(); 935 } 936 937 boolean passRightSwipesToCustomContent = 938 (mTouchDownTime - mCustomContentShowTime) > CUSTOM_CONTENT_GESTURE_DELAY; 939 940 boolean swipeInIgnoreDirection = isLayoutRtl() ? deltaX < 0 : deltaX > 0; 941 if (swipeInIgnoreDirection && getScreenIdForPageIndex(getCurrentPage()) == 942 CUSTOM_CONTENT_SCREEN_ID && passRightSwipesToCustomContent) { 943 // Pass swipes to the right to the custom content page. 944 return; 945 } 946 947 if (theta > MAX_SWIPE_ANGLE) { 948 // Above MAX_SWIPE_ANGLE, we don't want to ever start scrolling the workspace 949 return; 950 } else if (theta > START_DAMPING_TOUCH_SLOP_ANGLE) { 951 // Above START_DAMPING_TOUCH_SLOP_ANGLE and below MAX_SWIPE_ANGLE, we want to 952 // increase the touch slop to make it harder to begin scrolling the workspace. This 953 // results in vertically scrolling widgets to more easily. The higher the angle, the 954 // more we increase touch slop. 955 theta -= START_DAMPING_TOUCH_SLOP_ANGLE; 956 float extraRatio = (float) 957 Math.sqrt((theta / (MAX_SWIPE_ANGLE - START_DAMPING_TOUCH_SLOP_ANGLE))); 958 super.determineScrollingStart(ev, 1 + TOUCH_SLOP_DAMPING_FACTOR * extraRatio); 959 } else { 960 // Below START_DAMPING_TOUCH_SLOP_ANGLE, we don't do anything special 961 super.determineScrollingStart(ev); 962 } 963 } 964 965 protected void onPageBeginMoving() { 966 super.onPageBeginMoving(); 967 968 if (isHardwareAccelerated()) { 969 updateChildrenLayersEnabled(false); 970 } else { 971 if (mNextPage != INVALID_PAGE) { 972 // we're snapping to a particular screen 973 enableChildrenCache(mCurrentPage, mNextPage); 974 } else { 975 // this is when user is actively dragging a particular screen, they might 976 // swipe it either left or right (but we won't advance by more than one screen) 977 enableChildrenCache(mCurrentPage - 1, mCurrentPage + 1); 978 } 979 } 980 981 // Only show page outlines as we pan if we are on large screen 982 if (LauncherAppState.getInstance().isScreenLarge()) { 983 showOutlines(); 984 } 985 986 // If we are not fading in adjacent screens, we still need to restore the alpha in case the 987 // user scrolls while we are transitioning (should not affect dispatchDraw optimizations) 988 if (!mWorkspaceFadeInAdjacentScreens) { 989 for (int i = 0; i < getChildCount(); ++i) { 990 ((CellLayout) getPageAt(i)).setShortcutAndWidgetAlpha(1f); 991 } 992 } 993 } 994 995 protected void onPageEndMoving() { 996 super.onPageEndMoving(); 997 998 if (isHardwareAccelerated()) { 999 updateChildrenLayersEnabled(false); 1000 } else { 1001 clearChildrenCache(); 1002 } 1003 1004 if (mDragController.isDragging()) { 1005 if (isSmall()) { 1006 // If we are in springloaded mode, then force an event to check if the current touch 1007 // is under a new page (to scroll to) 1008 mDragController.forceTouchMove(); 1009 } 1010 } else { 1011 // If we are not mid-dragging, hide the page outlines if we are on a large screen 1012 if (LauncherAppState.getInstance().isScreenLarge()) { 1013 hideOutlines(); 1014 } 1015 } 1016 1017 if (mDelayedResizeRunnable != null) { 1018 mDelayedResizeRunnable.run(); 1019 mDelayedResizeRunnable = null; 1020 } 1021 1022 if (mDelayedSnapToPageRunnable != null) { 1023 mDelayedSnapToPageRunnable.run(); 1024 mDelayedSnapToPageRunnable = null; 1025 } 1026 if (mStripScreensOnPageStopMoving) { 1027 stripEmptyScreens(); 1028 mStripScreensOnPageStopMoving = false; 1029 } 1030 } 1031 1032 @Override 1033 protected void notifyPageSwitchListener() { 1034 super.notifyPageSwitchListener(); 1035 Launcher.setScreen(mCurrentPage); 1036 1037 if (hasCustomContent() && getNextPage() == 0 && !mCustomContentShowing) { 1038 mCustomContentShowing = true; 1039 if (mCustomContentCallbacks != null) { 1040 mCustomContentCallbacks.onShow(); 1041 mCustomContentShowTime = System.currentTimeMillis(); 1042 mLauncher.updateVoiceButtonProxyVisible(false); 1043 } 1044 } else if (hasCustomContent() && getNextPage() != 0 && mCustomContentShowing) { 1045 mCustomContentShowing = false; 1046 if (mCustomContentCallbacks != null) { 1047 mCustomContentCallbacks.onHide(); 1048 mLauncher.resetQSBScroll(); 1049 mLauncher.updateVoiceButtonProxyVisible(false); 1050 } 1051 } 1052 if (getPageIndicator() != null) { 1053 getPageIndicator().setContentDescription(getPageIndicatorDescription()); 1054 } 1055 } 1056 1057 protected CustomContentCallbacks getCustomContentCallbacks() { 1058 return mCustomContentCallbacks; 1059 } 1060 1061 protected void setWallpaperDimension() { 1062 String spKey = WallpaperCropActivity.getSharedPreferencesKey(); 1063 SharedPreferences sp = mLauncher.getSharedPreferences(spKey, Context.MODE_PRIVATE); 1064 WallpaperPickerActivity.suggestWallpaperDimension(mLauncher.getResources(), 1065 sp, mLauncher.getWindowManager(), mWallpaperManager); 1066 } 1067 1068 protected void snapToPage(int whichPage, Runnable r) { 1069 if (mDelayedSnapToPageRunnable != null) { 1070 mDelayedSnapToPageRunnable.run(); 1071 } 1072 mDelayedSnapToPageRunnable = r; 1073 snapToPage(whichPage, SLOW_PAGE_SNAP_ANIMATION_DURATION); 1074 } 1075 1076 protected void snapToScreenId(long screenId, Runnable r) { 1077 snapToPage(getPageIndexForScreenId(screenId), r); 1078 } 1079 1080 class WallpaperOffsetInterpolator implements Choreographer.FrameCallback { 1081 float mFinalOffset = 0.0f; 1082 float mCurrentOffset = 0.5f; // to force an initial update 1083 boolean mWaitingForUpdate; 1084 Choreographer mChoreographer; 1085 Interpolator mInterpolator; 1086 boolean mAnimating; 1087 long mAnimationStartTime; 1088 float mAnimationStartOffset; 1089 private final int ANIMATION_DURATION = 250; 1090 // Don't use all the wallpaper for parallax until you have at least this many pages 1091 private final int MIN_PARALLAX_PAGE_SPAN = 3; 1092 int mNumScreens; 1093 1094 public WallpaperOffsetInterpolator() { 1095 mChoreographer = Choreographer.getInstance(); 1096 mInterpolator = new DecelerateInterpolator(1.5f); 1097 } 1098 1099 @Override 1100 public void doFrame(long frameTimeNanos) { 1101 updateOffset(false); 1102 } 1103 1104 private void updateOffset(boolean force) { 1105 if (mWaitingForUpdate || force) { 1106 mWaitingForUpdate = false; 1107 if (computeScrollOffset() && mWindowToken != null) { 1108 try { 1109 mWallpaperManager.setWallpaperOffsets(mWindowToken, 1110 mWallpaperOffset.getCurrX(), 0.5f); 1111 setWallpaperOffsetSteps(); 1112 } catch (IllegalArgumentException e) { 1113 Log.e(TAG, "Error updating wallpaper offset: " + e); 1114 } 1115 } 1116 } 1117 } 1118 1119 public boolean computeScrollOffset() { 1120 final float oldOffset = mCurrentOffset; 1121 if (mAnimating) { 1122 long durationSinceAnimation = System.currentTimeMillis() - mAnimationStartTime; 1123 float t0 = durationSinceAnimation / (float) ANIMATION_DURATION; 1124 float t1 = mInterpolator.getInterpolation(t0); 1125 mCurrentOffset = mAnimationStartOffset + 1126 (mFinalOffset - mAnimationStartOffset) * t1; 1127 mAnimating = durationSinceAnimation < ANIMATION_DURATION; 1128 } else { 1129 mCurrentOffset = mFinalOffset; 1130 } 1131 1132 if (Math.abs(mCurrentOffset - mFinalOffset) > 0.0000001f) { 1133 scheduleUpdate(); 1134 } 1135 if (Math.abs(oldOffset - mCurrentOffset) > 0.0000001f) { 1136 return true; 1137 } 1138 return false; 1139 } 1140 1141 private float wallpaperOffsetForCurrentScroll() { 1142 if (getChildCount() <= 1) { 1143 return 0; 1144 } 1145 1146 // Exclude the leftmost page 1147 int emptyExtraPages = numEmptyScreensToIgnore(); 1148 int firstIndex = numCustomPages(); 1149 // Exclude the last extra empty screen (if we have > MIN_PARALLAX_PAGE_SPAN pages) 1150 int lastIndex = getChildCount() - 1 - emptyExtraPages; 1151 if (isLayoutRtl()) { 1152 int temp = firstIndex; 1153 firstIndex = lastIndex; 1154 lastIndex = temp; 1155 } 1156 1157 int firstPageScrollX = getScrollForPage(firstIndex); 1158 int scrollRange = getScrollForPage(lastIndex) - firstPageScrollX; 1159 if (scrollRange == 0) { 1160 return 0; 1161 } else { 1162 // TODO: do different behavior if it's a live wallpaper? 1163 // Sometimes the left parameter of the pages is animated during a layout transition; 1164 // this parameter offsets it to keep the wallpaper from animating as well 1165 int offsetForLayoutTransitionAnimation = isLayoutRtl() ? 1166 getPageAt(getChildCount() - 1).getLeft() - getFirstChildLeft() : 0; 1167 int adjustedScroll = 1168 getScrollX() - firstPageScrollX - offsetForLayoutTransitionAnimation; 1169 float offset = Math.min(1, adjustedScroll / (float) scrollRange); 1170 offset = Math.max(0, offset); 1171 // Don't use up all the wallpaper parallax until you have at least 1172 // MIN_PARALLAX_PAGE_SPAN pages 1173 int numScrollingPages = getNumScreensExcludingEmptyAndCustom(); 1174 int parallaxPageSpan = Math.max(MIN_PARALLAX_PAGE_SPAN, numScrollingPages - 1); 1175 // On RTL devices, push the wallpaper offset to the right if we don't have enough 1176 // pages (ie if numScrollingPages < MIN_PARALLAX_PAGE_SPAN) 1177 int padding = isLayoutRtl() ? parallaxPageSpan - numScrollingPages + 1 : 0; 1178 return offset * (padding + numScrollingPages - 1) / parallaxPageSpan; 1179 } 1180 } 1181 1182 private int numEmptyScreensToIgnore() { 1183 int numScrollingPages = getChildCount() - numCustomPages(); 1184 if (numScrollingPages >= MIN_PARALLAX_PAGE_SPAN && hasExtraEmptyScreen()) { 1185 return 1; 1186 } else { 1187 return 0; 1188 } 1189 } 1190 1191 private int getNumScreensExcludingEmptyAndCustom() { 1192 int numScrollingPages = getChildCount() - numEmptyScreensToIgnore() - numCustomPages(); 1193 return numScrollingPages; 1194 } 1195 1196 public void syncWithScroll() { 1197 float offset = wallpaperOffsetForCurrentScroll(); 1198 mWallpaperOffset.setFinalX(offset); 1199 updateOffset(true); 1200 } 1201 1202 public float getCurrX() { 1203 return mCurrentOffset; 1204 } 1205 1206 public float getFinalX() { 1207 return mFinalOffset; 1208 } 1209 1210 private void animateToFinal() { 1211 mAnimating = true; 1212 mAnimationStartOffset = mCurrentOffset; 1213 mAnimationStartTime = System.currentTimeMillis(); 1214 } 1215 1216 private void setWallpaperOffsetSteps() { 1217 // Set wallpaper offset steps (1 / (number of screens - 1)) 1218 mWallpaperManager.setWallpaperOffsetSteps(1.0f / (getChildCount() - 1), 1.0f); 1219 } 1220 1221 public void setFinalX(float x) { 1222 scheduleUpdate(); 1223 mFinalOffset = Math.max(0f, Math.min(x, 1.0f)); 1224 if (getNumScreensExcludingEmptyAndCustom() != mNumScreens) { 1225 if (mNumScreens > 0) { 1226 // Don't animate if we're going from 0 screens 1227 animateToFinal(); 1228 } 1229 mNumScreens = getNumScreensExcludingEmptyAndCustom(); 1230 } 1231 } 1232 1233 private void scheduleUpdate() { 1234 if (!mWaitingForUpdate) { 1235 mChoreographer.postFrameCallback(this); 1236 mWaitingForUpdate = true; 1237 } 1238 } 1239 1240 public void jumpToFinal() { 1241 mCurrentOffset = mFinalOffset; 1242 } 1243 } 1244 1245 @Override 1246 public void computeScroll() { 1247 super.computeScroll(); 1248 mWallpaperOffset.syncWithScroll(); 1249 } 1250 1251 void showOutlines() { 1252 if (!isSmall() && !mIsSwitchingState) { 1253 if (mChildrenOutlineFadeOutAnimation != null) mChildrenOutlineFadeOutAnimation.cancel(); 1254 if (mChildrenOutlineFadeInAnimation != null) mChildrenOutlineFadeInAnimation.cancel(); 1255 mChildrenOutlineFadeInAnimation = LauncherAnimUtils.ofFloat(this, "childrenOutlineAlpha", 1.0f); 1256 mChildrenOutlineFadeInAnimation.setDuration(CHILDREN_OUTLINE_FADE_IN_DURATION); 1257 mChildrenOutlineFadeInAnimation.start(); 1258 } 1259 } 1260 1261 void hideOutlines() { 1262 if (!isSmall() && !mIsSwitchingState) { 1263 if (mChildrenOutlineFadeInAnimation != null) mChildrenOutlineFadeInAnimation.cancel(); 1264 if (mChildrenOutlineFadeOutAnimation != null) mChildrenOutlineFadeOutAnimation.cancel(); 1265 mChildrenOutlineFadeOutAnimation = LauncherAnimUtils.ofFloat(this, "childrenOutlineAlpha", 0.0f); 1266 mChildrenOutlineFadeOutAnimation.setDuration(CHILDREN_OUTLINE_FADE_OUT_DURATION); 1267 mChildrenOutlineFadeOutAnimation.setStartDelay(CHILDREN_OUTLINE_FADE_OUT_DELAY); 1268 mChildrenOutlineFadeOutAnimation.start(); 1269 } 1270 } 1271 1272 public void showOutlinesTemporarily() { 1273 if (!mIsPageMoving && !isTouchActive()) { 1274 snapToPage(mCurrentPage); 1275 } 1276 } 1277 1278 public void setChildrenOutlineAlpha(float alpha) { 1279 mChildrenOutlineAlpha = alpha; 1280 for (int i = 0; i < getChildCount(); i++) { 1281 CellLayout cl = (CellLayout) getChildAt(i); 1282 cl.setBackgroundAlpha(alpha); 1283 } 1284 } 1285 1286 public float getChildrenOutlineAlpha() { 1287 return mChildrenOutlineAlpha; 1288 } 1289 1290 void disableBackground() { 1291 mDrawBackground = false; 1292 } 1293 void enableBackground() { 1294 mDrawBackground = true; 1295 } 1296 1297 private void animateBackgroundGradient(float finalAlpha, boolean animated) { 1298 if (mBackground == null) return; 1299 if (mBackgroundFadeInAnimation != null) { 1300 mBackgroundFadeInAnimation.cancel(); 1301 mBackgroundFadeInAnimation = null; 1302 } 1303 if (mBackgroundFadeOutAnimation != null) { 1304 mBackgroundFadeOutAnimation.cancel(); 1305 mBackgroundFadeOutAnimation = null; 1306 } 1307 float startAlpha = getBackgroundAlpha(); 1308 if (finalAlpha != startAlpha) { 1309 if (animated) { 1310 mBackgroundFadeOutAnimation = 1311 LauncherAnimUtils.ofFloat(this, startAlpha, finalAlpha); 1312 mBackgroundFadeOutAnimation.addUpdateListener(new AnimatorUpdateListener() { 1313 public void onAnimationUpdate(ValueAnimator animation) { 1314 setBackgroundAlpha(((Float) animation.getAnimatedValue()).floatValue()); 1315 } 1316 }); 1317 mBackgroundFadeOutAnimation.setInterpolator(new DecelerateInterpolator(1.5f)); 1318 mBackgroundFadeOutAnimation.setDuration(BACKGROUND_FADE_OUT_DURATION); 1319 mBackgroundFadeOutAnimation.start(); 1320 } else { 1321 setBackgroundAlpha(finalAlpha); 1322 } 1323 } 1324 } 1325 1326 public void setBackgroundAlpha(float alpha) { 1327 if (alpha != mBackgroundAlpha) { 1328 mBackgroundAlpha = alpha; 1329 invalidate(); 1330 } 1331 } 1332 1333 public float getBackgroundAlpha() { 1334 return mBackgroundAlpha; 1335 } 1336 1337 float backgroundAlphaInterpolator(float r) { 1338 float pivotA = 0.1f; 1339 float pivotB = 0.4f; 1340 if (r < pivotA) { 1341 return 0; 1342 } else if (r > pivotB) { 1343 return 1.0f; 1344 } else { 1345 return (r - pivotA)/(pivotB - pivotA); 1346 } 1347 } 1348 1349 private void updatePageAlphaValues(int screenCenter) { 1350 boolean isInOverscroll = mOverScrollX < 0 || mOverScrollX > mMaxScrollX; 1351 if (mWorkspaceFadeInAdjacentScreens && 1352 mState == State.NORMAL && 1353 !mIsSwitchingState && 1354 !isInOverscroll) { 1355 for (int i = 0; i < getChildCount(); i++) { 1356 CellLayout child = (CellLayout) getChildAt(i); 1357 if (child != null) { 1358 float scrollProgress = getScrollProgress(screenCenter, child, i); 1359 float alpha = 1 - Math.abs(scrollProgress); 1360 child.getShortcutsAndWidgets().setAlpha(alpha); 1361 if (!mIsDragOccuring) { 1362 child.setBackgroundAlphaMultiplier( 1363 backgroundAlphaInterpolator(Math.abs(scrollProgress))); 1364 } else { 1365 child.setBackgroundAlphaMultiplier(1f); 1366 } 1367 } 1368 } 1369 } 1370 } 1371 1372 private void setChildrenBackgroundAlphaMultipliers(float a) { 1373 for (int i = 0; i < getChildCount(); i++) { 1374 CellLayout child = (CellLayout) getChildAt(i); 1375 child.setBackgroundAlphaMultiplier(a); 1376 } 1377 } 1378 1379 public boolean hasCustomContent() { 1380 return (mScreenOrder.size() > 0 && mScreenOrder.get(0) == CUSTOM_CONTENT_SCREEN_ID); 1381 } 1382 1383 public int numCustomPages() { 1384 return hasCustomContent() ? 1 : 0; 1385 } 1386 1387 public boolean isOnOrMovingToCustomContent() { 1388 return hasCustomContent() && getNextPage() == 0; 1389 } 1390 1391 private void updateStateForCustomContent(int screenCenter) { 1392 float translationX = 0; 1393 float progress = 0; 1394 if (hasCustomContent()) { 1395 int index = mScreenOrder.indexOf(CUSTOM_CONTENT_SCREEN_ID); 1396 1397 int scrollDelta = getScrollForPage(index + 1) - getScrollX() + 1398 getLayoutTransitionOffsetForPage(index + 1); 1399 translationX = scrollDelta; 1400 progress = (1.0f * scrollDelta) / 1401 (getScrollForPage(index + 1) - getScrollForPage(index)); 1402 1403 if (isLayoutRtl()) { 1404 translationX = Math.min(0, translationX); 1405 } else { 1406 translationX = Math.max(0, translationX); 1407 } 1408 progress = Math.max(0, progress); 1409 } 1410 1411 if (Float.compare(progress, mLastCustomContentScrollProgress) == 0) return; 1412 mLastCustomContentScrollProgress = progress; 1413 1414 setBackgroundAlpha(progress * 0.8f); 1415 1416 if (mLauncher.getHotseat() != null) { 1417 mLauncher.getHotseat().setTranslationX(translationX); 1418 } 1419 1420 if (getPageIndicator() != null) { 1421 getPageIndicator().setTranslationX(translationX); 1422 } 1423 1424 if (mCustomContentCallbacks != null) { 1425 mCustomContentCallbacks.onScrollProgressChanged(progress); 1426 } 1427 } 1428 1429 @Override 1430 protected OnClickListener getPageIndicatorClickListener() { 1431 AccessibilityManager am = (AccessibilityManager) 1432 getContext().getSystemService(Context.ACCESSIBILITY_SERVICE); 1433 if (!am.isTouchExplorationEnabled()) { 1434 return null; 1435 } 1436 OnClickListener listener = new OnClickListener() { 1437 @Override 1438 public void onClick(View arg0) { 1439 enterOverviewMode(); 1440 } 1441 }; 1442 return listener; 1443 } 1444 1445 @Override 1446 protected void screenScrolled(int screenCenter) { 1447 final boolean isRtl = isLayoutRtl(); 1448 super.screenScrolled(screenCenter); 1449 1450 updatePageAlphaValues(screenCenter); 1451 updateStateForCustomContent(screenCenter); 1452 enableHwLayersOnVisiblePages(); 1453 1454 boolean shouldOverScroll = (mOverScrollX < 0 && (!hasCustomContent() || isLayoutRtl())) || 1455 (mOverScrollX > mMaxScrollX && (!hasCustomContent() || !isLayoutRtl())); 1456 1457 if (shouldOverScroll) { 1458 int index = 0; 1459 float pivotX = 0f; 1460 final float leftBiasedPivot = 0.25f; 1461 final float rightBiasedPivot = 0.75f; 1462 final int lowerIndex = 0; 1463 final int upperIndex = getChildCount() - 1; 1464 1465 final boolean isLeftPage = mOverScrollX < 0; 1466 index = (!isRtl && isLeftPage) || (isRtl && !isLeftPage) ? lowerIndex : upperIndex; 1467 pivotX = isLeftPage ? rightBiasedPivot : leftBiasedPivot; 1468 1469 CellLayout cl = (CellLayout) getChildAt(index); 1470 float scrollProgress = getScrollProgress(screenCenter, cl, index); 1471 cl.setOverScrollAmount(Math.abs(scrollProgress), isLeftPage); 1472 float rotation = -WORKSPACE_OVERSCROLL_ROTATION * scrollProgress; 1473 cl.setRotationY(rotation); 1474 1475 if (!mOverscrollTransformsSet || Float.compare(mLastOverscrollPivotX, pivotX) != 0) { 1476 mOverscrollTransformsSet = true; 1477 mLastOverscrollPivotX = pivotX; 1478 cl.setCameraDistance(mDensity * mCameraDistance); 1479 cl.setPivotX(cl.getMeasuredWidth() * pivotX); 1480 cl.setPivotY(cl.getMeasuredHeight() * 0.5f); 1481 cl.setOverscrollTransformsDirty(true); 1482 } 1483 } else { 1484 if (mOverscrollTransformsSet) { 1485 mOverscrollTransformsSet = false; 1486 ((CellLayout) getChildAt(0)).resetOverscrollTransforms(); 1487 ((CellLayout) getChildAt(getChildCount() - 1)).resetOverscrollTransforms(); 1488 } 1489 } 1490 } 1491 1492 @Override 1493 protected void overScroll(float amount) { 1494 acceleratedOverScroll(amount); 1495 } 1496 1497 protected void onAttachedToWindow() { 1498 super.onAttachedToWindow(); 1499 mWindowToken = getWindowToken(); 1500 computeScroll(); 1501 mDragController.setWindowToken(mWindowToken); 1502 } 1503 1504 protected void onDetachedFromWindow() { 1505 super.onDetachedFromWindow(); 1506 mWindowToken = null; 1507 } 1508 1509 protected void onResume() { 1510 if (getPageIndicator() != null) { 1511 // In case accessibility state has changed, we need to perform this on every 1512 // attach to window 1513 getPageIndicator().setOnClickListener(getPageIndicatorClickListener()); 1514 } 1515 AccessibilityManager am = (AccessibilityManager) 1516 getContext().getSystemService(Context.ACCESSIBILITY_SERVICE); 1517 sAccessibilityEnabled = am.isEnabled(); 1518 } 1519 1520 @Override 1521 protected void onLayout(boolean changed, int left, int top, int right, int bottom) { 1522 if (mFirstLayout && mCurrentPage >= 0 && mCurrentPage < getChildCount()) { 1523 mWallpaperOffset.syncWithScroll(); 1524 mWallpaperOffset.jumpToFinal(); 1525 } 1526 super.onLayout(changed, left, top, right, bottom); 1527 } 1528 1529 @Override 1530 protected void onDraw(Canvas canvas) { 1531 // Draw the background gradient if necessary 1532 if (mBackground != null && mBackgroundAlpha > 0.0f && mDrawBackground) { 1533 int alpha = (int) (mBackgroundAlpha * 255); 1534 mBackground.setAlpha(alpha); 1535 mBackground.setBounds(getScrollX(), 0, getScrollX() + getMeasuredWidth(), 1536 getMeasuredHeight()); 1537 mBackground.draw(canvas); 1538 } 1539 1540 super.onDraw(canvas); 1541 1542 // Call back to LauncherModel to finish binding after the first draw 1543 post(mBindPages); 1544 } 1545 1546 boolean isDrawingBackgroundGradient() { 1547 return (mBackground != null && mBackgroundAlpha > 0.0f && mDrawBackground); 1548 } 1549 1550 @Override 1551 protected boolean onRequestFocusInDescendants(int direction, Rect previouslyFocusedRect) { 1552 if (!mLauncher.isAllAppsVisible()) { 1553 final Folder openFolder = getOpenFolder(); 1554 if (openFolder != null) { 1555 return openFolder.requestFocus(direction, previouslyFocusedRect); 1556 } else { 1557 return super.onRequestFocusInDescendants(direction, previouslyFocusedRect); 1558 } 1559 } 1560 return false; 1561 } 1562 1563 @Override 1564 public int getDescendantFocusability() { 1565 if (isSmall()) { 1566 return ViewGroup.FOCUS_BLOCK_DESCENDANTS; 1567 } 1568 return super.getDescendantFocusability(); 1569 } 1570 1571 @Override 1572 public void addFocusables(ArrayList<View> views, int direction, int focusableMode) { 1573 if (!mLauncher.isAllAppsVisible()) { 1574 final Folder openFolder = getOpenFolder(); 1575 if (openFolder != null) { 1576 openFolder.addFocusables(views, direction); 1577 } else { 1578 super.addFocusables(views, direction, focusableMode); 1579 } 1580 } 1581 } 1582 1583 public boolean isSmall() { 1584 return mState == State.SMALL || mState == State.SPRING_LOADED || mState == State.OVERVIEW; 1585 } 1586 1587 void enableChildrenCache(int fromPage, int toPage) { 1588 if (fromPage > toPage) { 1589 final int temp = fromPage; 1590 fromPage = toPage; 1591 toPage = temp; 1592 } 1593 1594 final int screenCount = getChildCount(); 1595 1596 fromPage = Math.max(fromPage, 0); 1597 toPage = Math.min(toPage, screenCount - 1); 1598 1599 for (int i = fromPage; i <= toPage; i++) { 1600 final CellLayout layout = (CellLayout) getChildAt(i); 1601 layout.setChildrenDrawnWithCacheEnabled(true); 1602 layout.setChildrenDrawingCacheEnabled(true); 1603 } 1604 } 1605 1606 void clearChildrenCache() { 1607 final int screenCount = getChildCount(); 1608 for (int i = 0; i < screenCount; i++) { 1609 final CellLayout layout = (CellLayout) getChildAt(i); 1610 layout.setChildrenDrawnWithCacheEnabled(false); 1611 // In software mode, we don't want the items to continue to be drawn into bitmaps 1612 if (!isHardwareAccelerated()) { 1613 layout.setChildrenDrawingCacheEnabled(false); 1614 } 1615 } 1616 } 1617 1618 private void updateChildrenLayersEnabled(boolean force) { 1619 boolean small = mState == State.SMALL || mState == State.OVERVIEW || mIsSwitchingState; 1620 boolean enableChildrenLayers = force || small || mAnimatingViewIntoPlace || isPageMoving(); 1621 1622 if (enableChildrenLayers != mChildrenLayersEnabled) { 1623 mChildrenLayersEnabled = enableChildrenLayers; 1624 if (mChildrenLayersEnabled) { 1625 enableHwLayersOnVisiblePages(); 1626 } else { 1627 for (int i = 0; i < getPageCount(); i++) { 1628 final CellLayout cl = (CellLayout) getChildAt(i); 1629 cl.enableHardwareLayer(false); 1630 } 1631 } 1632 } 1633 } 1634 1635 private void enableHwLayersOnVisiblePages() { 1636 if (mChildrenLayersEnabled) { 1637 final int screenCount = getChildCount(); 1638 getVisiblePages(mTempVisiblePagesRange); 1639 int leftScreen = mTempVisiblePagesRange[0]; 1640 int rightScreen = mTempVisiblePagesRange[1]; 1641 if (leftScreen == rightScreen) { 1642 // make sure we're caching at least two pages always 1643 if (rightScreen < screenCount - 1) { 1644 rightScreen++; 1645 } else if (leftScreen > 0) { 1646 leftScreen--; 1647 } 1648 } 1649 1650 final CellLayout customScreen = mWorkspaceScreens.get(CUSTOM_CONTENT_SCREEN_ID); 1651 for (int i = 0; i < screenCount; i++) { 1652 final CellLayout layout = (CellLayout) getPageAt(i); 1653 1654 // enable layers between left and right screen inclusive, except for the 1655 // customScreen, which may animate its content during transitions. 1656 boolean enableLayer = layout != customScreen && 1657 leftScreen <= i && i <= rightScreen && shouldDrawChild(layout); 1658 layout.enableHardwareLayer(enableLayer); 1659 } 1660 } 1661 } 1662 1663 public void buildPageHardwareLayers() { 1664 // force layers to be enabled just for the call to buildLayer 1665 updateChildrenLayersEnabled(true); 1666 if (getWindowToken() != null) { 1667 final int childCount = getChildCount(); 1668 for (int i = 0; i < childCount; i++) { 1669 CellLayout cl = (CellLayout) getChildAt(i); 1670 cl.buildHardwareLayer(); 1671 } 1672 } 1673 updateChildrenLayersEnabled(false); 1674 } 1675 1676 protected void onWallpaperTap(MotionEvent ev) { 1677 final int[] position = mTempCell; 1678 getLocationOnScreen(position); 1679 1680 int pointerIndex = ev.getActionIndex(); 1681 position[0] += (int) ev.getX(pointerIndex); 1682 position[1] += (int) ev.getY(pointerIndex); 1683 1684 mWallpaperManager.sendWallpaperCommand(getWindowToken(), 1685 ev.getAction() == MotionEvent.ACTION_UP 1686 ? WallpaperManager.COMMAND_TAP : WallpaperManager.COMMAND_SECONDARY_TAP, 1687 position[0], position[1], 0, null); 1688 } 1689 1690 /* 1691 * This interpolator emulates the rate at which the perceived scale of an object changes 1692 * as its distance from a camera increases. When this interpolator is applied to a scale 1693 * animation on a view, it evokes the sense that the object is shrinking due to moving away 1694 * from the camera. 1695 */ 1696 static class ZInterpolator implements TimeInterpolator { 1697 private float focalLength; 1698 1699 public ZInterpolator(float foc) { 1700 focalLength = foc; 1701 } 1702 1703 public float getInterpolation(float input) { 1704 return (1.0f - focalLength / (focalLength + input)) / 1705 (1.0f - focalLength / (focalLength + 1.0f)); 1706 } 1707 } 1708 1709 /* 1710 * The exact reverse of ZInterpolator. 1711 */ 1712 static class InverseZInterpolator implements TimeInterpolator { 1713 private ZInterpolator zInterpolator; 1714 public InverseZInterpolator(float foc) { 1715 zInterpolator = new ZInterpolator(foc); 1716 } 1717 public float getInterpolation(float input) { 1718 return 1 - zInterpolator.getInterpolation(1 - input); 1719 } 1720 } 1721 1722 /* 1723 * ZInterpolator compounded with an ease-out. 1724 */ 1725 static class ZoomOutInterpolator implements TimeInterpolator { 1726 private final DecelerateInterpolator decelerate = new DecelerateInterpolator(0.75f); 1727 private final ZInterpolator zInterpolator = new ZInterpolator(0.13f); 1728 1729 public float getInterpolation(float input) { 1730 return decelerate.getInterpolation(zInterpolator.getInterpolation(input)); 1731 } 1732 } 1733 1734 /* 1735 * InvereZInterpolator compounded with an ease-out. 1736 */ 1737 static class ZoomInInterpolator implements TimeInterpolator { 1738 private final InverseZInterpolator inverseZInterpolator = new InverseZInterpolator(0.35f); 1739 private final DecelerateInterpolator decelerate = new DecelerateInterpolator(3.0f); 1740 1741 public float getInterpolation(float input) { 1742 return decelerate.getInterpolation(inverseZInterpolator.getInterpolation(input)); 1743 } 1744 } 1745 1746 private final ZoomInInterpolator mZoomInInterpolator = new ZoomInInterpolator(); 1747 1748 /* 1749 * 1750 * We call these methods (onDragStartedWithItemSpans/onDragStartedWithSize) whenever we 1751 * start a drag in Launcher, regardless of whether the drag has ever entered the Workspace 1752 * 1753 * These methods mark the appropriate pages as accepting drops (which alters their visual 1754 * appearance). 1755 * 1756 */ 1757 public void onDragStartedWithItem(View v) { 1758 final Canvas canvas = new Canvas(); 1759 1760 // The outline is used to visualize where the item will land if dropped 1761 mDragOutline = createDragOutline(v, canvas, DRAG_BITMAP_PADDING); 1762 } 1763 1764 public void onDragStartedWithItem(PendingAddItemInfo info, Bitmap b, boolean clipAlpha) { 1765 final Canvas canvas = new Canvas(); 1766 1767 int[] size = estimateItemSize(info.spanX, info.spanY, info, false); 1768 1769 // The outline is used to visualize where the item will land if dropped 1770 mDragOutline = createDragOutline(b, canvas, DRAG_BITMAP_PADDING, size[0], 1771 size[1], clipAlpha); 1772 } 1773 1774 public void exitWidgetResizeMode() { 1775 DragLayer dragLayer = mLauncher.getDragLayer(); 1776 dragLayer.clearAllResizeFrames(); 1777 } 1778 1779 private void initAnimationArrays() { 1780 final int childCount = getChildCount(); 1781 if (mLastChildCount == childCount) return; 1782 1783 mOldBackgroundAlphas = new float[childCount]; 1784 mOldAlphas = new float[childCount]; 1785 mNewBackgroundAlphas = new float[childCount]; 1786 mNewAlphas = new float[childCount]; 1787 } 1788 1789 Animator getChangeStateAnimation(final State state, boolean animated) { 1790 return getChangeStateAnimation(state, animated, 0, -1); 1791 } 1792 1793 @Override 1794 protected void getOverviewModePages(int[] range) { 1795 int start = numCustomPages(); 1796 int end = getChildCount() - 1; 1797 1798 range[0] = Math.max(0, Math.min(start, getChildCount() - 1)); 1799 range[1] = Math.max(0, end); 1800 } 1801 1802 protected void onStartReordering() { 1803 super.onStartReordering(); 1804 showOutlines(); 1805 // Reordering handles its own animations, disable the automatic ones. 1806 setLayoutTransition(null); 1807 } 1808 1809 protected void onEndReordering() { 1810 super.onEndReordering(); 1811 1812 hideOutlines(); 1813 mScreenOrder.clear(); 1814 int count = getChildCount(); 1815 for (int i = 0; i < count; i++) { 1816 CellLayout cl = ((CellLayout) getChildAt(i)); 1817 mScreenOrder.add(getIdForScreen(cl)); 1818 } 1819 1820 mLauncher.getModel().updateWorkspaceScreenOrder(mLauncher, mScreenOrder); 1821 1822 // Re-enable auto layout transitions for page deletion. 1823 setLayoutTransition(mLayoutTransition); 1824 } 1825 1826 public boolean isInOverviewMode() { 1827 return mState == State.OVERVIEW; 1828 } 1829 1830 public boolean enterOverviewMode() { 1831 if (mTouchState != TOUCH_STATE_REST) { 1832 return false; 1833 } 1834 enableOverviewMode(true, -1, true); 1835 return true; 1836 } 1837 1838 public void exitOverviewMode(boolean animated) { 1839 exitOverviewMode(-1, animated); 1840 } 1841 1842 public void exitOverviewMode(int snapPage, boolean animated) { 1843 enableOverviewMode(false, snapPage, animated); 1844 } 1845 1846 private void enableOverviewMode(boolean enable, int snapPage, boolean animated) { 1847 State finalState = Workspace.State.OVERVIEW; 1848 if (!enable) { 1849 finalState = Workspace.State.NORMAL; 1850 } 1851 1852 Animator workspaceAnim = getChangeStateAnimation(finalState, animated, 0, snapPage); 1853 if (workspaceAnim != null) { 1854 onTransitionPrepare(); 1855 workspaceAnim.addListener(new AnimatorListenerAdapter() { 1856 @Override 1857 public void onAnimationEnd(Animator arg0) { 1858 onTransitionEnd(); 1859 } 1860 }); 1861 workspaceAnim.start(); 1862 } 1863 } 1864 1865 int getOverviewModeTranslationY() { 1866 int childHeight = getNormalChildHeight(); 1867 int viewPortHeight = getViewportHeight(); 1868 int scaledChildHeight = (int) (mOverviewModeShrinkFactor * childHeight); 1869 1870 int offset = (viewPortHeight - scaledChildHeight) / 2; 1871 int offsetDelta = mOverviewModePageOffset - offset + mInsets.top; 1872 1873 return offsetDelta; 1874 } 1875 1876 boolean shouldVoiceButtonProxyBeVisible() { 1877 if (isOnOrMovingToCustomContent()) { 1878 return false; 1879 } 1880 if (mState != State.NORMAL) { 1881 return false; 1882 } 1883 return true; 1884 } 1885 1886 public void updateInteractionForState() { 1887 if (mState != State.NORMAL) { 1888 mLauncher.onInteractionBegin(); 1889 } else { 1890 mLauncher.onInteractionEnd(); 1891 } 1892 } 1893 1894 private void setState(State state) { 1895 mState = state; 1896 updateInteractionForState(); 1897 updateAccessibilityFlags(); 1898 } 1899 1900 private void updateAccessibilityFlags() { 1901 int accessible = mState == State.NORMAL ? 1902 ViewCompat.IMPORTANT_FOR_ACCESSIBILITY_YES : 1903 ViewCompat.IMPORTANT_FOR_ACCESSIBILITY_NO_HIDE_DESCENDANTS; 1904 setImportantForAccessibility(accessible); 1905 } 1906 1907 Animator getChangeStateAnimation(final State state, boolean animated, int delay, int snapPage) { 1908 if (mState == state) { 1909 return null; 1910 } 1911 1912 // Initialize animation arrays for the first time if necessary 1913 initAnimationArrays(); 1914 1915 AnimatorSet anim = animated ? LauncherAnimUtils.createAnimatorSet() : null; 1916 1917 final State oldState = mState; 1918 final boolean oldStateIsNormal = (oldState == State.NORMAL); 1919 final boolean oldStateIsSpringLoaded = (oldState == State.SPRING_LOADED); 1920 final boolean oldStateIsSmall = (oldState == State.SMALL); 1921 final boolean oldStateIsOverview = (oldState == State.OVERVIEW); 1922 setState(state); 1923 final boolean stateIsNormal = (state == State.NORMAL); 1924 final boolean stateIsSpringLoaded = (state == State.SPRING_LOADED); 1925 final boolean stateIsSmall = (state == State.SMALL); 1926 final boolean stateIsOverview = (state == State.OVERVIEW); 1927 float finalBackgroundAlpha = (stateIsSpringLoaded || stateIsOverview) ? 1.0f : 0f; 1928 float finalHotseatAndPageIndicatorAlpha = (stateIsOverview || stateIsSmall) ? 0f : 1f; 1929 float finalOverviewPanelAlpha = stateIsOverview ? 1f : 0f; 1930 float finalSearchBarAlpha = !stateIsNormal ? 0f : 1f; 1931 float finalWorkspaceTranslationY = stateIsOverview ? getOverviewModeTranslationY() : 0; 1932 1933 boolean workspaceToAllApps = (oldStateIsNormal && stateIsSmall); 1934 boolean allAppsToWorkspace = (oldStateIsSmall && stateIsNormal); 1935 mNewScale = 1.0f; 1936 1937 if (oldStateIsOverview) { 1938 disableFreeScroll(snapPage); 1939 } else if (stateIsOverview) { 1940 enableFreeScroll(); 1941 } 1942 1943 if (state != State.NORMAL) { 1944 if (stateIsSpringLoaded) { 1945 mNewScale = mSpringLoadedShrinkFactor; 1946 } else if (stateIsOverview) { 1947 mNewScale = mOverviewModeShrinkFactor; 1948 } else if (stateIsSmall){ 1949 mNewScale = mOverviewModeShrinkFactor - 0.3f; 1950 } 1951 if (workspaceToAllApps) { 1952 updateChildrenLayersEnabled(false); 1953 } 1954 } 1955 1956 final int duration = workspaceToAllApps ? 1957 getResources().getInteger(R.integer.config_workspaceUnshrinkTime) : 1958 getResources().getInteger(R.integer.config_appsCustomizeWorkspaceShrinkTime); 1959 for (int i = 0; i < getChildCount(); i++) { 1960 final CellLayout cl = (CellLayout) getChildAt(i); 1961 boolean isCurrentPage = (i == getNextPage()); 1962 float initialAlpha = cl.getShortcutsAndWidgets().getAlpha(); 1963 float finalAlpha = stateIsSmall ? 0f : 1f; 1964 1965 // If we are animating to/from the small state, then hide the side pages and fade the 1966 // current page in 1967 if (!mIsSwitchingState) { 1968 if (workspaceToAllApps || allAppsToWorkspace) { 1969 if (allAppsToWorkspace && isCurrentPage) { 1970 initialAlpha = 0f; 1971 } else if (!isCurrentPage) { 1972 initialAlpha = finalAlpha = 0f; 1973 } 1974 cl.setShortcutAndWidgetAlpha(initialAlpha); 1975 } 1976 } 1977 1978 mOldAlphas[i] = initialAlpha; 1979 mNewAlphas[i] = finalAlpha; 1980 if (animated) { 1981 mOldBackgroundAlphas[i] = cl.getBackgroundAlpha(); 1982 mNewBackgroundAlphas[i] = finalBackgroundAlpha; 1983 } else { 1984 cl.setBackgroundAlpha(finalBackgroundAlpha); 1985 cl.setShortcutAndWidgetAlpha(finalAlpha); 1986 } 1987 } 1988 1989 final View searchBar = mLauncher.getQsbBar(); 1990 final View overviewPanel = mLauncher.getOverviewPanel(); 1991 final View hotseat = mLauncher.getHotseat(); 1992 if (animated) { 1993 LauncherViewPropertyAnimator scale = new LauncherViewPropertyAnimator(this); 1994 scale.scaleX(mNewScale) 1995 .scaleY(mNewScale) 1996 .translationY(finalWorkspaceTranslationY) 1997 .setInterpolator(mZoomInInterpolator); 1998 anim.play(scale); 1999 for (int index = 0; index < getChildCount(); index++) { 2000 final int i = index; 2001 final CellLayout cl = (CellLayout) getChildAt(i); 2002 float currentAlpha = cl.getShortcutsAndWidgets().getAlpha(); 2003 if (mOldAlphas[i] == 0 && mNewAlphas[i] == 0) { 2004 cl.setBackgroundAlpha(mNewBackgroundAlphas[i]); 2005 cl.setShortcutAndWidgetAlpha(mNewAlphas[i]); 2006 } else { 2007 if (mOldAlphas[i] != mNewAlphas[i] || currentAlpha != mNewAlphas[i]) { 2008 LauncherViewPropertyAnimator alphaAnim = 2009 new LauncherViewPropertyAnimator(cl.getShortcutsAndWidgets()); 2010 alphaAnim.alpha(mNewAlphas[i]) 2011 .setDuration(duration) 2012 .setInterpolator(mZoomInInterpolator); 2013 anim.play(alphaAnim); 2014 } 2015 if (mOldBackgroundAlphas[i] != 0 || 2016 mNewBackgroundAlphas[i] != 0) { 2017 ValueAnimator bgAnim = 2018 LauncherAnimUtils.ofFloat(cl, 0f, 1f).setDuration(duration); 2019 bgAnim.setInterpolator(mZoomInInterpolator); 2020 bgAnim.addUpdateListener(new LauncherAnimatorUpdateListener() { 2021 public void onAnimationUpdate(float a, float b) { 2022 cl.setBackgroundAlpha( 2023 a * mOldBackgroundAlphas[i] + 2024 b * mNewBackgroundAlphas[i]); 2025 } 2026 }); 2027 anim.play(bgAnim); 2028 } 2029 } 2030 } 2031 ObjectAnimator pageIndicatorAlpha = null; 2032 if (getPageIndicator() != null) { 2033 pageIndicatorAlpha = ObjectAnimator.ofFloat(getPageIndicator(), "alpha", 2034 finalHotseatAndPageIndicatorAlpha); 2035 } 2036 ObjectAnimator hotseatAlpha = ObjectAnimator.ofFloat(hotseat, "alpha", 2037 finalHotseatAndPageIndicatorAlpha); 2038 ObjectAnimator searchBarAlpha = ObjectAnimator.ofFloat(searchBar, 2039 "alpha", finalSearchBarAlpha); 2040 ObjectAnimator overviewPanelAlpha = ObjectAnimator.ofFloat(overviewPanel, 2041 "alpha", finalOverviewPanelAlpha); 2042 2043 overviewPanelAlpha.addUpdateListener(new AlphaUpdateListener(overviewPanel)); 2044 hotseatAlpha.addUpdateListener(new AlphaUpdateListener(hotseat)); 2045 searchBarAlpha.addUpdateListener(new AlphaUpdateListener(searchBar)); 2046 2047 if (getPageIndicator() != null) { 2048 pageIndicatorAlpha.addUpdateListener(new AlphaUpdateListener(getPageIndicator())); 2049 } 2050 2051 2052 anim.play(overviewPanelAlpha); 2053 anim.play(hotseatAlpha); 2054 anim.play(searchBarAlpha); 2055 anim.play(pageIndicatorAlpha); 2056 anim.setStartDelay(delay); 2057 } else { 2058 overviewPanel.setAlpha(finalOverviewPanelAlpha); 2059 AlphaUpdateListener.updateVisibility(overviewPanel); 2060 hotseat.setAlpha(finalHotseatAndPageIndicatorAlpha); 2061 AlphaUpdateListener.updateVisibility(hotseat); 2062 if (getPageIndicator() != null) { 2063 getPageIndicator().setAlpha(finalHotseatAndPageIndicatorAlpha); 2064 AlphaUpdateListener.updateVisibility(getPageIndicator()); 2065 } 2066 searchBar.setAlpha(finalSearchBarAlpha); 2067 AlphaUpdateListener.updateVisibility(searchBar); 2068 updateCustomContentVisibility(); 2069 setScaleX(mNewScale); 2070 setScaleY(mNewScale); 2071 setTranslationY(finalWorkspaceTranslationY); 2072 } 2073 mLauncher.updateVoiceButtonProxyVisible(false); 2074 2075 if (stateIsSpringLoaded) { 2076 // Right now we're covered by Apps Customize 2077 // Show the background gradient immediately, so the gradient will 2078 // be showing once AppsCustomize disappears 2079 animateBackgroundGradient(getResources().getInteger( 2080 R.integer.config_appsCustomizeSpringLoadedBgAlpha) / 100f, false); 2081 } else if (stateIsOverview) { 2082 animateBackgroundGradient(getResources().getInteger( 2083 R.integer.config_appsCustomizeSpringLoadedBgAlpha) / 100f, true); 2084 } else { 2085 // Fade the background gradient away 2086 animateBackgroundGradient(0f, animated); 2087 } 2088 return anim; 2089 } 2090 2091 static class AlphaUpdateListener implements AnimatorUpdateListener { 2092 View view; 2093 public AlphaUpdateListener(View v) { 2094 view = v; 2095 } 2096 2097 @Override 2098 public void onAnimationUpdate(ValueAnimator arg0) { 2099 updateVisibility(view); 2100 } 2101 2102 public static void updateVisibility(View view) { 2103 // We want to avoid the extra layout pass by setting the views to GONE unless 2104 // accessibility is on, in which case not setting them to GONE causes a glitch. 2105 int invisibleState = sAccessibilityEnabled ? GONE : INVISIBLE; 2106 if (view.getAlpha() < ALPHA_CUTOFF_THRESHOLD && view.getVisibility() != invisibleState) { 2107 view.setVisibility(invisibleState); 2108 } else if (view.getAlpha() > ALPHA_CUTOFF_THRESHOLD 2109 && view.getVisibility() != VISIBLE) { 2110 view.setVisibility(VISIBLE); 2111 } 2112 } 2113 } 2114 2115 @Override 2116 public void onLauncherTransitionPrepare(Launcher l, boolean animated, boolean toWorkspace) { 2117 onTransitionPrepare(); 2118 } 2119 2120 @Override 2121 public void onLauncherTransitionStart(Launcher l, boolean animated, boolean toWorkspace) { 2122 } 2123 2124 @Override 2125 public void onLauncherTransitionStep(Launcher l, float t) { 2126 mTransitionProgress = t; 2127 } 2128 2129 @Override 2130 public void onLauncherTransitionEnd(Launcher l, boolean animated, boolean toWorkspace) { 2131 onTransitionEnd(); 2132 } 2133 2134 private void onTransitionPrepare() { 2135 mIsSwitchingState = true; 2136 2137 // Invalidate here to ensure that the pages are rendered during the state change transition. 2138 invalidate(); 2139 2140 updateChildrenLayersEnabled(false); 2141 hideCustomContentIfNecessary(); 2142 } 2143 2144 void updateCustomContentVisibility() { 2145 int visibility = mState == Workspace.State.NORMAL ? VISIBLE : INVISIBLE; 2146 if (hasCustomContent()) { 2147 mWorkspaceScreens.get(CUSTOM_CONTENT_SCREEN_ID).setVisibility(visibility); 2148 } 2149 } 2150 2151 void showCustomContentIfNecessary() { 2152 boolean show = mState == Workspace.State.NORMAL; 2153 if (show && hasCustomContent()) { 2154 mWorkspaceScreens.get(CUSTOM_CONTENT_SCREEN_ID).setVisibility(VISIBLE); 2155 } 2156 } 2157 2158 void hideCustomContentIfNecessary() { 2159 boolean hide = mState != Workspace.State.NORMAL; 2160 if (hide && hasCustomContent()) { 2161 mWorkspaceScreens.get(CUSTOM_CONTENT_SCREEN_ID).setVisibility(INVISIBLE); 2162 } 2163 } 2164 2165 private void onTransitionEnd() { 2166 mIsSwitchingState = false; 2167 updateChildrenLayersEnabled(false); 2168 // The code in getChangeStateAnimation to determine initialAlpha and finalAlpha will ensure 2169 // ensure that only the current page is visible during (and subsequently, after) the 2170 // transition animation. If fade adjacent pages is disabled, then re-enable the page 2171 // visibility after the transition animation. 2172 if (!mWorkspaceFadeInAdjacentScreens) { 2173 for (int i = 0; i < getChildCount(); i++) { 2174 final CellLayout cl = (CellLayout) getChildAt(i); 2175 cl.setShortcutAndWidgetAlpha(1f); 2176 } 2177 } 2178 showCustomContentIfNecessary(); 2179 } 2180 2181 @Override 2182 public View getContent() { 2183 return this; 2184 } 2185 2186 /** 2187 * Draw the View v into the given Canvas. 2188 * 2189 * @param v the view to draw 2190 * @param destCanvas the canvas to draw on 2191 * @param padding the horizontal and vertical padding to use when drawing 2192 */ 2193 private void drawDragView(View v, Canvas destCanvas, int padding, boolean pruneToDrawable) { 2194 final Rect clipRect = mTempRect; 2195 v.getDrawingRect(clipRect); 2196 2197 boolean textVisible = false; 2198 2199 destCanvas.save(); 2200 if (v instanceof TextView && pruneToDrawable) { 2201 Drawable d = ((TextView) v).getCompoundDrawables()[1]; 2202 clipRect.set(0, 0, d.getIntrinsicWidth() + padding, d.getIntrinsicHeight() + padding); 2203 destCanvas.translate(padding / 2, padding / 2); 2204 d.draw(destCanvas); 2205 } else { 2206 if (v instanceof FolderIcon) { 2207 // For FolderIcons the text can bleed into the icon area, and so we need to 2208 // hide the text completely (which can't be achieved by clipping). 2209 if (((FolderIcon) v).getTextVisible()) { 2210 ((FolderIcon) v).setTextVisible(false); 2211 textVisible = true; 2212 } 2213 } else if (v instanceof BubbleTextView) { 2214 final BubbleTextView tv = (BubbleTextView) v; 2215 clipRect.bottom = tv.getExtendedPaddingTop() - (int) BubbleTextView.PADDING_V + 2216 tv.getLayout().getLineTop(0); 2217 } else if (v instanceof TextView) { 2218 final TextView tv = (TextView) v; 2219 clipRect.bottom = tv.getExtendedPaddingTop() - tv.getCompoundDrawablePadding() + 2220 tv.getLayout().getLineTop(0); 2221 } 2222 destCanvas.translate(-v.getScrollX() + padding / 2, -v.getScrollY() + padding / 2); 2223 destCanvas.clipRect(clipRect, Op.REPLACE); 2224 v.draw(destCanvas); 2225 2226 // Restore text visibility of FolderIcon if necessary 2227 if (textVisible) { 2228 ((FolderIcon) v).setTextVisible(true); 2229 } 2230 } 2231 destCanvas.restore(); 2232 } 2233 2234 /** 2235 * Returns a new bitmap to show when the given View is being dragged around. 2236 * Responsibility for the bitmap is transferred to the caller. 2237 */ 2238 public Bitmap createDragBitmap(View v, Canvas canvas, int padding) { 2239 Bitmap b; 2240 2241 if (v instanceof TextView) { 2242 Drawable d = ((TextView) v).getCompoundDrawables()[1]; 2243 b = Bitmap.createBitmap(d.getIntrinsicWidth() + padding, 2244 d.getIntrinsicHeight() + padding, Bitmap.Config.ARGB_8888); 2245 } else { 2246 b = Bitmap.createBitmap( 2247 v.getWidth() + padding, v.getHeight() + padding, Bitmap.Config.ARGB_8888); 2248 } 2249 2250 canvas.setBitmap(b); 2251 drawDragView(v, canvas, padding, true); 2252 canvas.setBitmap(null); 2253 2254 return b; 2255 } 2256 2257 /** 2258 * Returns a new bitmap to be used as the object outline, e.g. to visualize the drop location. 2259 * Responsibility for the bitmap is transferred to the caller. 2260 */ 2261 private Bitmap createDragOutline(View v, Canvas canvas, int padding) { 2262 final int outlineColor = getResources().getColor(R.color.outline_color); 2263 final Bitmap b = Bitmap.createBitmap( 2264 v.getWidth() + padding, v.getHeight() + padding, Bitmap.Config.ARGB_8888); 2265 2266 canvas.setBitmap(b); 2267 drawDragView(v, canvas, padding, true); 2268 mOutlineHelper.applyMediumExpensiveOutlineWithBlur(b, canvas, outlineColor, outlineColor); 2269 canvas.setBitmap(null); 2270 return b; 2271 } 2272 2273 /** 2274 * Returns a new bitmap to be used as the object outline, e.g. to visualize the drop location. 2275 * Responsibility for the bitmap is transferred to the caller. 2276 */ 2277 private Bitmap createDragOutline(Bitmap orig, Canvas canvas, int padding, int w, int h, 2278 boolean clipAlpha) { 2279 final int outlineColor = getResources().getColor(R.color.outline_color); 2280 final Bitmap b = Bitmap.createBitmap(w, h, Bitmap.Config.ARGB_8888); 2281 canvas.setBitmap(b); 2282 2283 Rect src = new Rect(0, 0, orig.getWidth(), orig.getHeight()); 2284 float scaleFactor = Math.min((w - padding) / (float) orig.getWidth(), 2285 (h - padding) / (float) orig.getHeight()); 2286 int scaledWidth = (int) (scaleFactor * orig.getWidth()); 2287 int scaledHeight = (int) (scaleFactor * orig.getHeight()); 2288 Rect dst = new Rect(0, 0, scaledWidth, scaledHeight); 2289 2290 // center the image 2291 dst.offset((w - scaledWidth) / 2, (h - scaledHeight) / 2); 2292 2293 canvas.drawBitmap(orig, src, dst, null); 2294 mOutlineHelper.applyMediumExpensiveOutlineWithBlur(b, canvas, outlineColor, outlineColor, 2295 clipAlpha); 2296 canvas.setBitmap(null); 2297 2298 return b; 2299 } 2300 2301 void startDrag(CellLayout.CellInfo cellInfo) { 2302 View child = cellInfo.cell; 2303 2304 // Make sure the drag was started by a long press as opposed to a long click. 2305 if (!child.isInTouchMode()) { 2306 return; 2307 } 2308 2309 mDragInfo = cellInfo; 2310 child.setVisibility(INVISIBLE); 2311 CellLayout layout = (CellLayout) child.getParent().getParent(); 2312 layout.prepareChildForDrag(child); 2313 2314 child.clearFocus(); 2315 child.setPressed(false); 2316 2317 final Canvas canvas = new Canvas(); 2318 2319 // The outline is used to visualize where the item will land if dropped 2320 mDragOutline = createDragOutline(child, canvas, DRAG_BITMAP_PADDING); 2321 beginDragShared(child, this); 2322 } 2323 2324 public void beginDragShared(View child, DragSource source) { 2325 // The drag bitmap follows the touch point around on the screen 2326 final Bitmap b = createDragBitmap(child, new Canvas(), DRAG_BITMAP_PADDING); 2327 2328 final int bmpWidth = b.getWidth(); 2329 final int bmpHeight = b.getHeight(); 2330 2331 float scale = mLauncher.getDragLayer().getLocationInDragLayer(child, mTempXY); 2332 int dragLayerX = 2333 Math.round(mTempXY[0] - (bmpWidth - scale * child.getWidth()) / 2); 2334 int dragLayerY = 2335 Math.round(mTempXY[1] - (bmpHeight - scale * bmpHeight) / 2 2336 - DRAG_BITMAP_PADDING / 2); 2337 2338 LauncherAppState app = LauncherAppState.getInstance(); 2339 DeviceProfile grid = app.getDynamicGrid().getDeviceProfile(); 2340 Point dragVisualizeOffset = null; 2341 Rect dragRect = null; 2342 if (child instanceof BubbleTextView || child instanceof PagedViewIcon) { 2343 int iconSize = grid.iconSizePx; 2344 int top = child.getPaddingTop(); 2345 int left = (bmpWidth - iconSize) / 2; 2346 int right = left + iconSize; 2347 int bottom = top + iconSize; 2348 dragLayerY += top; 2349 // Note: The drag region is used to calculate drag layer offsets, but the 2350 // dragVisualizeOffset in addition to the dragRect (the size) to position the outline. 2351 dragVisualizeOffset = new Point(-DRAG_BITMAP_PADDING / 2, DRAG_BITMAP_PADDING / 2); 2352 dragRect = new Rect(left, top, right, bottom); 2353 } else if (child instanceof FolderIcon) { 2354 int previewSize = grid.folderIconSizePx; 2355 dragRect = new Rect(0, child.getPaddingTop(), child.getWidth(), previewSize); 2356 } 2357 2358 // Clear the pressed state if necessary 2359 if (child instanceof BubbleTextView) { 2360 BubbleTextView icon = (BubbleTextView) child; 2361 icon.clearPressedOrFocusedBackground(); 2362 } 2363 2364 mDragController.startDrag(b, dragLayerX, dragLayerY, source, child.getTag(), 2365 DragController.DRAG_ACTION_MOVE, dragVisualizeOffset, dragRect, scale); 2366 2367 if (child.getParent() instanceof ShortcutAndWidgetContainer) { 2368 mDragSourceInternal = (ShortcutAndWidgetContainer) child.getParent(); 2369 } 2370 2371 b.recycle(); 2372 } 2373 2374 void addApplicationShortcut(ShortcutInfo info, CellLayout target, long container, long screenId, 2375 int cellX, int cellY, boolean insertAtFirst, int intersectX, int intersectY) { 2376 View view = mLauncher.createShortcut(R.layout.application, target, (ShortcutInfo) info); 2377 2378 final int[] cellXY = new int[2]; 2379 target.findCellForSpanThatIntersects(cellXY, 1, 1, intersectX, intersectY); 2380 addInScreen(view, container, screenId, cellXY[0], cellXY[1], 1, 1, insertAtFirst); 2381 2382 LauncherModel.addOrMoveItemInDatabase(mLauncher, info, container, screenId, cellXY[0], 2383 cellXY[1]); 2384 } 2385 2386 public boolean transitionStateShouldAllowDrop() { 2387 return ((!isSwitchingState() || mTransitionProgress > 0.5f) && mState != State.SMALL); 2388 } 2389 2390 /** 2391 * {@inheritDoc} 2392 */ 2393 public boolean acceptDrop(DragObject d) { 2394 // If it's an external drop (e.g. from All Apps), check if it should be accepted 2395 CellLayout dropTargetLayout = mDropToLayout; 2396 if (d.dragSource != this) { 2397 // Don't accept the drop if we're not over a screen at time of drop 2398 if (dropTargetLayout == null) { 2399 return false; 2400 } 2401 if (!transitionStateShouldAllowDrop()) return false; 2402 2403 mDragViewVisualCenter = getDragViewVisualCenter(d.x, d.y, d.xOffset, d.yOffset, 2404 d.dragView, mDragViewVisualCenter); 2405 2406 // We want the point to be mapped to the dragTarget. 2407 if (mLauncher.isHotseatLayout(dropTargetLayout)) { 2408 mapPointFromSelfToHotseatLayout(mLauncher.getHotseat(), mDragViewVisualCenter); 2409 } else { 2410 mapPointFromSelfToChild(dropTargetLayout, mDragViewVisualCenter, null); 2411 } 2412 2413 int spanX = 1; 2414 int spanY = 1; 2415 if (mDragInfo != null) { 2416 final CellLayout.CellInfo dragCellInfo = mDragInfo; 2417 spanX = dragCellInfo.spanX; 2418 spanY = dragCellInfo.spanY; 2419 } else { 2420 final ItemInfo dragInfo = (ItemInfo) d.dragInfo; 2421 spanX = dragInfo.spanX; 2422 spanY = dragInfo.spanY; 2423 } 2424 2425 int minSpanX = spanX; 2426 int minSpanY = spanY; 2427 if (d.dragInfo instanceof PendingAddWidgetInfo) { 2428 minSpanX = ((PendingAddWidgetInfo) d.dragInfo).minSpanX; 2429 minSpanY = ((PendingAddWidgetInfo) d.dragInfo).minSpanY; 2430 } 2431 2432 mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], 2433 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, dropTargetLayout, 2434 mTargetCell); 2435 float distance = dropTargetLayout.getDistanceFromCell(mDragViewVisualCenter[0], 2436 mDragViewVisualCenter[1], mTargetCell); 2437 if (willCreateUserFolder((ItemInfo) d.dragInfo, dropTargetLayout, 2438 mTargetCell, distance, true)) { 2439 return true; 2440 } 2441 if (willAddToExistingUserFolder((ItemInfo) d.dragInfo, dropTargetLayout, 2442 mTargetCell, distance)) { 2443 return true; 2444 } 2445 2446 int[] resultSpan = new int[2]; 2447 mTargetCell = dropTargetLayout.createArea((int) mDragViewVisualCenter[0], 2448 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, spanX, spanY, 2449 null, mTargetCell, resultSpan, CellLayout.MODE_ACCEPT_DROP); 2450 boolean foundCell = mTargetCell[0] >= 0 && mTargetCell[1] >= 0; 2451 2452 // Don't accept the drop if there's no room for the item 2453 if (!foundCell) { 2454 // Don't show the message if we are dropping on the AllApps button and the hotseat 2455 // is full 2456 boolean isHotseat = mLauncher.isHotseatLayout(dropTargetLayout); 2457 if (mTargetCell != null && isHotseat) { 2458 Hotseat hotseat = mLauncher.getHotseat(); 2459 if (hotseat.isAllAppsButtonRank( 2460 hotseat.getOrderInHotseat(mTargetCell[0], mTargetCell[1]))) { 2461 return false; 2462 } 2463 } 2464 2465 mLauncher.showOutOfSpaceMessage(isHotseat); 2466 return false; 2467 } 2468 } 2469 2470 long screenId = getIdForScreen(dropTargetLayout); 2471 if (screenId == EXTRA_EMPTY_SCREEN_ID) { 2472 commitExtraEmptyScreen(); 2473 } 2474 2475 return true; 2476 } 2477 2478 boolean willCreateUserFolder(ItemInfo info, CellLayout target, int[] targetCell, float 2479 distance, boolean considerTimeout) { 2480 if (distance > mMaxDistanceForFolderCreation) return false; 2481 View dropOverView = target.getChildAt(targetCell[0], targetCell[1]); 2482 2483 if (dropOverView != null) { 2484 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) dropOverView.getLayoutParams(); 2485 if (lp.useTmpCoords && (lp.tmpCellX != lp.cellX || lp.tmpCellY != lp.tmpCellY)) { 2486 return false; 2487 } 2488 } 2489 2490 boolean hasntMoved = false; 2491 if (mDragInfo != null) { 2492 hasntMoved = dropOverView == mDragInfo.cell; 2493 } 2494 2495 if (dropOverView == null || hasntMoved || (considerTimeout && !mCreateUserFolderOnDrop)) { 2496 return false; 2497 } 2498 2499 boolean aboveShortcut = (dropOverView.getTag() instanceof ShortcutInfo); 2500 boolean willBecomeShortcut = 2501 (info.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPLICATION || 2502 info.itemType == LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT); 2503 2504 return (aboveShortcut && willBecomeShortcut); 2505 } 2506 2507 boolean willAddToExistingUserFolder(Object dragInfo, CellLayout target, int[] targetCell, 2508 float distance) { 2509 if (distance > mMaxDistanceForFolderCreation) return false; 2510 View dropOverView = target.getChildAt(targetCell[0], targetCell[1]); 2511 2512 if (dropOverView != null) { 2513 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) dropOverView.getLayoutParams(); 2514 if (lp.useTmpCoords && (lp.tmpCellX != lp.cellX || lp.tmpCellY != lp.tmpCellY)) { 2515 return false; 2516 } 2517 } 2518 2519 if (dropOverView instanceof FolderIcon) { 2520 FolderIcon fi = (FolderIcon) dropOverView; 2521 if (fi.acceptDrop(dragInfo)) { 2522 return true; 2523 } 2524 } 2525 return false; 2526 } 2527 2528 boolean createUserFolderIfNecessary(View newView, long container, CellLayout target, 2529 int[] targetCell, float distance, boolean external, DragView dragView, 2530 Runnable postAnimationRunnable) { 2531 if (distance > mMaxDistanceForFolderCreation) return false; 2532 View v = target.getChildAt(targetCell[0], targetCell[1]); 2533 2534 boolean hasntMoved = false; 2535 if (mDragInfo != null) { 2536 CellLayout cellParent = getParentCellLayoutForView(mDragInfo.cell); 2537 hasntMoved = (mDragInfo.cellX == targetCell[0] && 2538 mDragInfo.cellY == targetCell[1]) && (cellParent == target); 2539 } 2540 2541 if (v == null || hasntMoved || !mCreateUserFolderOnDrop) return false; 2542 mCreateUserFolderOnDrop = false; 2543 final long screenId = (targetCell == null) ? mDragInfo.screenId : getIdForScreen(target); 2544 2545 boolean aboveShortcut = (v.getTag() instanceof ShortcutInfo); 2546 boolean willBecomeShortcut = (newView.getTag() instanceof ShortcutInfo); 2547 2548 if (aboveShortcut && willBecomeShortcut) { 2549 ShortcutInfo sourceInfo = (ShortcutInfo) newView.getTag(); 2550 ShortcutInfo destInfo = (ShortcutInfo) v.getTag(); 2551 // if the drag started here, we need to remove it from the workspace 2552 if (!external) { 2553 getParentCellLayoutForView(mDragInfo.cell).removeView(mDragInfo.cell); 2554 } 2555 2556 Rect folderLocation = new Rect(); 2557 float scale = mLauncher.getDragLayer().getDescendantRectRelativeToSelf(v, folderLocation); 2558 target.removeView(v); 2559 2560 FolderIcon fi = 2561 mLauncher.addFolder(target, container, screenId, targetCell[0], targetCell[1]); 2562 destInfo.cellX = -1; 2563 destInfo.cellY = -1; 2564 sourceInfo.cellX = -1; 2565 sourceInfo.cellY = -1; 2566 2567 // If the dragView is null, we can't animate 2568 boolean animate = dragView != null; 2569 if (animate) { 2570 fi.performCreateAnimation(destInfo, v, sourceInfo, dragView, folderLocation, scale, 2571 postAnimationRunnable); 2572 } else { 2573 fi.addItem(destInfo); 2574 fi.addItem(sourceInfo); 2575 } 2576 return true; 2577 } 2578 return false; 2579 } 2580 2581 boolean addToExistingFolderIfNecessary(View newView, CellLayout target, int[] targetCell, 2582 float distance, DragObject d, boolean external) { 2583 if (distance > mMaxDistanceForFolderCreation) return false; 2584 2585 View dropOverView = target.getChildAt(targetCell[0], targetCell[1]); 2586 if (!mAddToExistingFolderOnDrop) return false; 2587 mAddToExistingFolderOnDrop = false; 2588 2589 if (dropOverView instanceof FolderIcon) { 2590 FolderIcon fi = (FolderIcon) dropOverView; 2591 if (fi.acceptDrop(d.dragInfo)) { 2592 fi.onDrop(d); 2593 2594 // if the drag started here, we need to remove it from the workspace 2595 if (!external) { 2596 getParentCellLayoutForView(mDragInfo.cell).removeView(mDragInfo.cell); 2597 } 2598 return true; 2599 } 2600 } 2601 return false; 2602 } 2603 2604 public void onDrop(final DragObject d) { 2605 mDragViewVisualCenter = getDragViewVisualCenter(d.x, d.y, d.xOffset, d.yOffset, d.dragView, 2606 mDragViewVisualCenter); 2607 2608 CellLayout dropTargetLayout = mDropToLayout; 2609 2610 // We want the point to be mapped to the dragTarget. 2611 if (dropTargetLayout != null) { 2612 if (mLauncher.isHotseatLayout(dropTargetLayout)) { 2613 mapPointFromSelfToHotseatLayout(mLauncher.getHotseat(), mDragViewVisualCenter); 2614 } else { 2615 mapPointFromSelfToChild(dropTargetLayout, mDragViewVisualCenter, null); 2616 } 2617 } 2618 2619 int snapScreen = -1; 2620 boolean resizeOnDrop = false; 2621 if (d.dragSource != this) { 2622 final int[] touchXY = new int[] { (int) mDragViewVisualCenter[0], 2623 (int) mDragViewVisualCenter[1] }; 2624 onDropExternal(touchXY, d.dragInfo, dropTargetLayout, false, d); 2625 } else if (mDragInfo != null) { 2626 final View cell = mDragInfo.cell; 2627 2628 Runnable resizeRunnable = null; 2629 if (dropTargetLayout != null && !d.cancelled) { 2630 // Move internally 2631 boolean hasMovedLayouts = (getParentCellLayoutForView(cell) != dropTargetLayout); 2632 boolean hasMovedIntoHotseat = mLauncher.isHotseatLayout(dropTargetLayout); 2633 long container = hasMovedIntoHotseat ? 2634 LauncherSettings.Favorites.CONTAINER_HOTSEAT : 2635 LauncherSettings.Favorites.CONTAINER_DESKTOP; 2636 long screenId = (mTargetCell[0] < 0) ? 2637 mDragInfo.screenId : getIdForScreen(dropTargetLayout); 2638 int spanX = mDragInfo != null ? mDragInfo.spanX : 1; 2639 int spanY = mDragInfo != null ? mDragInfo.spanY : 1; 2640 // First we find the cell nearest to point at which the item is 2641 // dropped, without any consideration to whether there is an item there. 2642 2643 mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], (int) 2644 mDragViewVisualCenter[1], spanX, spanY, dropTargetLayout, mTargetCell); 2645 float distance = dropTargetLayout.getDistanceFromCell(mDragViewVisualCenter[0], 2646 mDragViewVisualCenter[1], mTargetCell); 2647 2648 // If the item being dropped is a shortcut and the nearest drop 2649 // cell also contains a shortcut, then create a folder with the two shortcuts. 2650 if (!mInScrollArea && createUserFolderIfNecessary(cell, container, 2651 dropTargetLayout, mTargetCell, distance, false, d.dragView, null)) { 2652 stripEmptyScreens(); 2653 return; 2654 } 2655 2656 if (addToExistingFolderIfNecessary(cell, dropTargetLayout, mTargetCell, 2657 distance, d, false)) { 2658 stripEmptyScreens(); 2659 return; 2660 } 2661 2662 // Aside from the special case where we're dropping a shortcut onto a shortcut, 2663 // we need to find the nearest cell location that is vacant 2664 ItemInfo item = (ItemInfo) d.dragInfo; 2665 int minSpanX = item.spanX; 2666 int minSpanY = item.spanY; 2667 if (item.minSpanX > 0 && item.minSpanY > 0) { 2668 minSpanX = item.minSpanX; 2669 minSpanY = item.minSpanY; 2670 } 2671 2672 int[] resultSpan = new int[2]; 2673 mTargetCell = dropTargetLayout.createArea((int) mDragViewVisualCenter[0], 2674 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, spanX, spanY, cell, 2675 mTargetCell, resultSpan, CellLayout.MODE_ON_DROP); 2676 2677 boolean foundCell = mTargetCell[0] >= 0 && mTargetCell[1] >= 0; 2678 2679 // if the widget resizes on drop 2680 if (foundCell && (cell instanceof AppWidgetHostView) && 2681 (resultSpan[0] != item.spanX || resultSpan[1] != item.spanY)) { 2682 resizeOnDrop = true; 2683 item.spanX = resultSpan[0]; 2684 item.spanY = resultSpan[1]; 2685 AppWidgetHostView awhv = (AppWidgetHostView) cell; 2686 AppWidgetResizeFrame.updateWidgetSizeRanges(awhv, mLauncher, resultSpan[0], 2687 resultSpan[1]); 2688 } 2689 2690 if (getScreenIdForPageIndex(mCurrentPage) != screenId && !hasMovedIntoHotseat) { 2691 snapScreen = getPageIndexForScreenId(screenId); 2692 snapToPage(snapScreen); 2693 } 2694 2695 if (foundCell) { 2696 final ItemInfo info = (ItemInfo) cell.getTag(); 2697 if (hasMovedLayouts) { 2698 // Reparent the view 2699 getParentCellLayoutForView(cell).removeView(cell); 2700 addInScreen(cell, container, screenId, mTargetCell[0], mTargetCell[1], 2701 info.spanX, info.spanY); 2702 } 2703 2704 // update the item's position after drop 2705 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) cell.getLayoutParams(); 2706 lp.cellX = lp.tmpCellX = mTargetCell[0]; 2707 lp.cellY = lp.tmpCellY = mTargetCell[1]; 2708 lp.cellHSpan = item.spanX; 2709 lp.cellVSpan = item.spanY; 2710 lp.isLockedToGrid = true; 2711 cell.setId(LauncherModel.getCellLayoutChildId(container, mDragInfo.screenId, 2712 mTargetCell[0], mTargetCell[1], mDragInfo.spanX, mDragInfo.spanY)); 2713 2714 if (container != LauncherSettings.Favorites.CONTAINER_HOTSEAT && 2715 cell instanceof LauncherAppWidgetHostView) { 2716 final CellLayout cellLayout = dropTargetLayout; 2717 // We post this call so that the widget has a chance to be placed 2718 // in its final location 2719 2720 final LauncherAppWidgetHostView hostView = (LauncherAppWidgetHostView) cell; 2721 AppWidgetProviderInfo pinfo = hostView.getAppWidgetInfo(); 2722 if (pinfo != null && 2723 pinfo.resizeMode != AppWidgetProviderInfo.RESIZE_NONE) { 2724 final Runnable addResizeFrame = new Runnable() { 2725 public void run() { 2726 DragLayer dragLayer = mLauncher.getDragLayer(); 2727 dragLayer.addResizeFrame(info, hostView, cellLayout); 2728 } 2729 }; 2730 resizeRunnable = (new Runnable() { 2731 public void run() { 2732 if (!isPageMoving()) { 2733 addResizeFrame.run(); 2734 } else { 2735 mDelayedResizeRunnable = addResizeFrame; 2736 } 2737 } 2738 }); 2739 } 2740 } 2741 2742 LauncherModel.modifyItemInDatabase(mLauncher, info, container, screenId, lp.cellX, 2743 lp.cellY, item.spanX, item.spanY); 2744 } else { 2745 // If we can't find a drop location, we return the item to its original position 2746 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) cell.getLayoutParams(); 2747 mTargetCell[0] = lp.cellX; 2748 mTargetCell[1] = lp.cellY; 2749 CellLayout layout = (CellLayout) cell.getParent().getParent(); 2750 layout.markCellsAsOccupiedForView(cell); 2751 } 2752 } 2753 2754 final CellLayout parent = (CellLayout) cell.getParent().getParent(); 2755 final Runnable finalResizeRunnable = resizeRunnable; 2756 // Prepare it to be animated into its new position 2757 // This must be called after the view has been re-parented 2758 final Runnable onCompleteRunnable = new Runnable() { 2759 @Override 2760 public void run() { 2761 mAnimatingViewIntoPlace = false; 2762 updateChildrenLayersEnabled(false); 2763 if (finalResizeRunnable != null) { 2764 finalResizeRunnable.run(); 2765 } 2766 stripEmptyScreens(); 2767 } 2768 }; 2769 mAnimatingViewIntoPlace = true; 2770 if (d.dragView.hasDrawn()) { 2771 final ItemInfo info = (ItemInfo) cell.getTag(); 2772 if (info.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET) { 2773 int animationType = resizeOnDrop ? ANIMATE_INTO_POSITION_AND_RESIZE : 2774 ANIMATE_INTO_POSITION_AND_DISAPPEAR; 2775 animateWidgetDrop(info, parent, d.dragView, 2776 onCompleteRunnable, animationType, cell, false); 2777 } else { 2778 int duration = snapScreen < 0 ? -1 : ADJACENT_SCREEN_DROP_DURATION; 2779 mLauncher.getDragLayer().animateViewIntoPosition(d.dragView, cell, duration, 2780 onCompleteRunnable, this); 2781 } 2782 } else { 2783 d.deferDragViewCleanupPostAnimation = false; 2784 cell.setVisibility(VISIBLE); 2785 } 2786 parent.onDropChild(cell); 2787 } 2788 } 2789 2790 public void setFinalScrollForPageChange(int pageIndex) { 2791 CellLayout cl = (CellLayout) getChildAt(pageIndex); 2792 if (cl != null) { 2793 mSavedScrollX = getScrollX(); 2794 mSavedTranslationX = cl.getTranslationX(); 2795 mSavedRotationY = cl.getRotationY(); 2796 final int newX = getScrollForPage(pageIndex); 2797 setScrollX(newX); 2798 cl.setTranslationX(0f); 2799 cl.setRotationY(0f); 2800 } 2801 } 2802 2803 public void resetFinalScrollForPageChange(int pageIndex) { 2804 if (pageIndex >= 0) { 2805 CellLayout cl = (CellLayout) getChildAt(pageIndex); 2806 setScrollX(mSavedScrollX); 2807 cl.setTranslationX(mSavedTranslationX); 2808 cl.setRotationY(mSavedRotationY); 2809 } 2810 } 2811 2812 public void getViewLocationRelativeToSelf(View v, int[] location) { 2813 getLocationInWindow(location); 2814 int x = location[0]; 2815 int y = location[1]; 2816 2817 v.getLocationInWindow(location); 2818 int vX = location[0]; 2819 int vY = location[1]; 2820 2821 location[0] = vX - x; 2822 location[1] = vY - y; 2823 } 2824 2825 public void onDragEnter(DragObject d) { 2826 mDragEnforcer.onDragEnter(); 2827 mCreateUserFolderOnDrop = false; 2828 mAddToExistingFolderOnDrop = false; 2829 2830 mDropToLayout = null; 2831 CellLayout layout = getCurrentDropLayout(); 2832 setCurrentDropLayout(layout); 2833 setCurrentDragOverlappingLayout(layout); 2834 2835 // Because we don't have space in the Phone UI (the CellLayouts run to the edge) we 2836 // don't need to show the outlines 2837 if (LauncherAppState.getInstance().isScreenLarge()) { 2838 showOutlines(); 2839 } 2840 } 2841 2842 /** Return a rect that has the cellWidth/cellHeight (left, top), and 2843 * widthGap/heightGap (right, bottom) */ 2844 static Rect getCellLayoutMetrics(Launcher launcher, int orientation) { 2845 LauncherAppState app = LauncherAppState.getInstance(); 2846 DeviceProfile grid = app.getDynamicGrid().getDeviceProfile(); 2847 2848 Resources res = launcher.getResources(); 2849 Display display = launcher.getWindowManager().getDefaultDisplay(); 2850 Point smallestSize = new Point(); 2851 Point largestSize = new Point(); 2852 display.getCurrentSizeRange(smallestSize, largestSize); 2853 int countX = (int) grid.numColumns; 2854 int countY = (int) grid.numRows; 2855 int constrainedLongEdge = largestSize.y; 2856 int constrainedShortEdge = smallestSize.y; 2857 if (orientation == CellLayout.LANDSCAPE) { 2858 if (mLandscapeCellLayoutMetrics == null) { 2859 Rect padding = grid.getWorkspacePadding(CellLayout.LANDSCAPE); 2860 int width = constrainedLongEdge - padding.left - padding.right; 2861 int height = constrainedShortEdge - padding.top - padding.bottom; 2862 mLandscapeCellLayoutMetrics = new Rect(); 2863 mLandscapeCellLayoutMetrics.set( 2864 grid.calculateCellWidth(width, countX), 2865 grid.calculateCellHeight(height, countY), 0, 0); 2866 } 2867 return mLandscapeCellLayoutMetrics; 2868 } else if (orientation == CellLayout.PORTRAIT) { 2869 if (mPortraitCellLayoutMetrics == null) { 2870 Rect padding = grid.getWorkspacePadding(CellLayout.PORTRAIT); 2871 int width = constrainedShortEdge - padding.left - padding.right; 2872 int height = constrainedLongEdge - padding.top - padding.bottom; 2873 mPortraitCellLayoutMetrics = new Rect(); 2874 mPortraitCellLayoutMetrics.set( 2875 grid.calculateCellWidth(width, countX), 2876 grid.calculateCellHeight(height, countY), 0, 0); 2877 } 2878 return mPortraitCellLayoutMetrics; 2879 } 2880 return null; 2881 } 2882 2883 public void onDragExit(DragObject d) { 2884 mDragEnforcer.onDragExit(); 2885 2886 // Here we store the final page that will be dropped to, if the workspace in fact 2887 // receives the drop 2888 if (mInScrollArea) { 2889 if (isPageMoving()) { 2890 // If the user drops while the page is scrolling, we should use that page as the 2891 // destination instead of the page that is being hovered over. 2892 mDropToLayout = (CellLayout) getPageAt(getNextPage()); 2893 } else { 2894 mDropToLayout = mDragOverlappingLayout; 2895 } 2896 } else { 2897 mDropToLayout = mDragTargetLayout; 2898 } 2899 2900 if (mDragMode == DRAG_MODE_CREATE_FOLDER) { 2901 mCreateUserFolderOnDrop = true; 2902 } else if (mDragMode == DRAG_MODE_ADD_TO_FOLDER) { 2903 mAddToExistingFolderOnDrop = true; 2904 } 2905 2906 // Reset the scroll area and previous drag target 2907 onResetScrollArea(); 2908 setCurrentDropLayout(null); 2909 setCurrentDragOverlappingLayout(null); 2910 2911 mSpringLoadedDragController.cancel(); 2912 2913 if (!mIsPageMoving) { 2914 hideOutlines(); 2915 } 2916 } 2917 2918 void setCurrentDropLayout(CellLayout layout) { 2919 if (mDragTargetLayout != null) { 2920 mDragTargetLayout.revertTempState(); 2921 mDragTargetLayout.onDragExit(); 2922 } 2923 mDragTargetLayout = layout; 2924 if (mDragTargetLayout != null) { 2925 mDragTargetLayout.onDragEnter(); 2926 } 2927 cleanupReorder(true); 2928 cleanupFolderCreation(); 2929 setCurrentDropOverCell(-1, -1); 2930 } 2931 2932 void setCurrentDragOverlappingLayout(CellLayout layout) { 2933 if (mDragOverlappingLayout != null) { 2934 mDragOverlappingLayout.setIsDragOverlapping(false); 2935 } 2936 mDragOverlappingLayout = layout; 2937 if (mDragOverlappingLayout != null) { 2938 mDragOverlappingLayout.setIsDragOverlapping(true); 2939 } 2940 invalidate(); 2941 } 2942 2943 void setCurrentDropOverCell(int x, int y) { 2944 if (x != mDragOverX || y != mDragOverY) { 2945 mDragOverX = x; 2946 mDragOverY = y; 2947 setDragMode(DRAG_MODE_NONE); 2948 } 2949 } 2950 2951 void setDragMode(int dragMode) { 2952 if (dragMode != mDragMode) { 2953 if (dragMode == DRAG_MODE_NONE) { 2954 cleanupAddToFolder(); 2955 // We don't want to cancel the re-order alarm every time the target cell changes 2956 // as this feels to slow / unresponsive. 2957 cleanupReorder(false); 2958 cleanupFolderCreation(); 2959 } else if (dragMode == DRAG_MODE_ADD_TO_FOLDER) { 2960 cleanupReorder(true); 2961 cleanupFolderCreation(); 2962 } else if (dragMode == DRAG_MODE_CREATE_FOLDER) { 2963 cleanupAddToFolder(); 2964 cleanupReorder(true); 2965 } else if (dragMode == DRAG_MODE_REORDER) { 2966 cleanupAddToFolder(); 2967 cleanupFolderCreation(); 2968 } 2969 mDragMode = dragMode; 2970 } 2971 } 2972 2973 private void cleanupFolderCreation() { 2974 if (mDragFolderRingAnimator != null) { 2975 mDragFolderRingAnimator.animateToNaturalState(); 2976 } 2977 mFolderCreationAlarm.cancelAlarm(); 2978 } 2979 2980 private void cleanupAddToFolder() { 2981 if (mDragOverFolderIcon != null) { 2982 mDragOverFolderIcon.onDragExit(null); 2983 mDragOverFolderIcon = null; 2984 } 2985 } 2986 2987 private void cleanupReorder(boolean cancelAlarm) { 2988 // Any pending reorders are canceled 2989 if (cancelAlarm) { 2990 mReorderAlarm.cancelAlarm(); 2991 } 2992 mLastReorderX = -1; 2993 mLastReorderY = -1; 2994 } 2995 2996 /* 2997 * 2998 * Convert the 2D coordinate xy from the parent View's coordinate space to this CellLayout's 2999 * coordinate space. The argument xy is modified with the return result. 3000 * 3001 * if cachedInverseMatrix is not null, this method will just use that matrix instead of 3002 * computing it itself; we use this to avoid redundant matrix inversions in 3003 * findMatchingPageForDragOver 3004 * 3005 */ 3006 void mapPointFromSelfToChild(View v, float[] xy, Matrix cachedInverseMatrix) { 3007 xy[0] = xy[0] - v.getLeft(); 3008 xy[1] = xy[1] - v.getTop(); 3009 } 3010 3011 boolean isPointInSelfOverHotseat(int x, int y, Rect r) { 3012 if (r == null) { 3013 r = new Rect(); 3014 } 3015 mTempPt[0] = x; 3016 mTempPt[1] = y; 3017 mLauncher.getDragLayer().getDescendantCoordRelativeToSelf(this, mTempPt, true); 3018 3019 LauncherAppState app = LauncherAppState.getInstance(); 3020 DeviceProfile grid = app.getDynamicGrid().getDeviceProfile(); 3021 r = grid.getHotseatRect(); 3022 if (r.contains(mTempPt[0], mTempPt[1])) { 3023 return true; 3024 } 3025 return false; 3026 } 3027 3028 void mapPointFromSelfToHotseatLayout(Hotseat hotseat, float[] xy) { 3029 mTempPt[0] = (int) xy[0]; 3030 mTempPt[1] = (int) xy[1]; 3031 mLauncher.getDragLayer().getDescendantCoordRelativeToSelf(this, mTempPt, true); 3032 mLauncher.getDragLayer().mapCoordInSelfToDescendent(hotseat.getLayout(), mTempPt); 3033 3034 xy[0] = mTempPt[0]; 3035 xy[1] = mTempPt[1]; 3036 } 3037 3038 /* 3039 * 3040 * Convert the 2D coordinate xy from this CellLayout's coordinate space to 3041 * the parent View's coordinate space. The argument xy is modified with the return result. 3042 * 3043 */ 3044 void mapPointFromChildToSelf(View v, float[] xy) { 3045 xy[0] += v.getLeft(); 3046 xy[1] += v.getTop(); 3047 } 3048 3049 static private float squaredDistance(float[] point1, float[] point2) { 3050 float distanceX = point1[0] - point2[0]; 3051 float distanceY = point2[1] - point2[1]; 3052 return distanceX * distanceX + distanceY * distanceY; 3053 } 3054 3055 /* 3056 * 3057 * This method returns the CellLayout that is currently being dragged to. In order to drag 3058 * to a CellLayout, either the touch point must be directly over the CellLayout, or as a second 3059 * strategy, we see if the dragView is overlapping any CellLayout and choose the closest one 3060 * 3061 * Return null if no CellLayout is currently being dragged over 3062 * 3063 */ 3064 private CellLayout findMatchingPageForDragOver( 3065 DragView dragView, float originX, float originY, boolean exact) { 3066 // We loop through all the screens (ie CellLayouts) and see which ones overlap 3067 // with the item being dragged and then choose the one that's closest to the touch point 3068 final int screenCount = getChildCount(); 3069 CellLayout bestMatchingScreen = null; 3070 float smallestDistSoFar = Float.MAX_VALUE; 3071 3072 for (int i = 0; i < screenCount; i++) { 3073 // The custom content screen is not a valid drag over option 3074 if (mScreenOrder.get(i) == CUSTOM_CONTENT_SCREEN_ID) { 3075 continue; 3076 } 3077 3078 CellLayout cl = (CellLayout) getChildAt(i); 3079 3080 final float[] touchXy = {originX, originY}; 3081 // Transform the touch coordinates to the CellLayout's local coordinates 3082 // If the touch point is within the bounds of the cell layout, we can return immediately 3083 cl.getMatrix().invert(mTempInverseMatrix); 3084 mapPointFromSelfToChild(cl, touchXy, mTempInverseMatrix); 3085 3086 if (touchXy[0] >= 0 && touchXy[0] <= cl.getWidth() && 3087 touchXy[1] >= 0 && touchXy[1] <= cl.getHeight()) { 3088 return cl; 3089 } 3090 3091 if (!exact) { 3092 // Get the center of the cell layout in screen coordinates 3093 final float[] cellLayoutCenter = mTempCellLayoutCenterCoordinates; 3094 cellLayoutCenter[0] = cl.getWidth()/2; 3095 cellLayoutCenter[1] = cl.getHeight()/2; 3096 mapPointFromChildToSelf(cl, cellLayoutCenter); 3097 3098 touchXy[0] = originX; 3099 touchXy[1] = originY; 3100 3101 // Calculate the distance between the center of the CellLayout 3102 // and the touch point 3103 float dist = squaredDistance(touchXy, cellLayoutCenter); 3104 3105 if (dist < smallestDistSoFar) { 3106 smallestDistSoFar = dist; 3107 bestMatchingScreen = cl; 3108 } 3109 } 3110 } 3111 return bestMatchingScreen; 3112 } 3113 3114 // This is used to compute the visual center of the dragView. This point is then 3115 // used to visualize drop locations and determine where to drop an item. The idea is that 3116 // the visual center represents the user's interpretation of where the item is, and hence 3117 // is the appropriate point to use when determining drop location. 3118 private float[] getDragViewVisualCenter(int x, int y, int xOffset, int yOffset, 3119 DragView dragView, float[] recycle) { 3120 float res[]; 3121 if (recycle == null) { 3122 res = new float[2]; 3123 } else { 3124 res = recycle; 3125 } 3126 3127 // First off, the drag view has been shifted in a way that is not represented in the 3128 // x and y values or the x/yOffsets. Here we account for that shift. 3129 x += getResources().getDimensionPixelSize(R.dimen.dragViewOffsetX); 3130 y += getResources().getDimensionPixelSize(R.dimen.dragViewOffsetY); 3131 3132 // These represent the visual top and left of drag view if a dragRect was provided. 3133 // If a dragRect was not provided, then they correspond to the actual view left and 3134 // top, as the dragRect is in that case taken to be the entire dragView. 3135 // R.dimen.dragViewOffsetY. 3136 int left = x - xOffset; 3137 int top = y - yOffset; 3138 3139 // In order to find the visual center, we shift by half the dragRect 3140 res[0] = left + dragView.getDragRegion().width() / 2; 3141 res[1] = top + dragView.getDragRegion().height() / 2; 3142 3143 return res; 3144 } 3145 3146 private boolean isDragWidget(DragObject d) { 3147 return (d.dragInfo instanceof LauncherAppWidgetInfo || 3148 d.dragInfo instanceof PendingAddWidgetInfo); 3149 } 3150 private boolean isExternalDragWidget(DragObject d) { 3151 return d.dragSource != this && isDragWidget(d); 3152 } 3153 3154 public void onDragOver(DragObject d) { 3155 // Skip drag over events while we are dragging over side pages 3156 if (mInScrollArea || mIsSwitchingState || mState == State.SMALL) return; 3157 3158 Rect r = new Rect(); 3159 CellLayout layout = null; 3160 ItemInfo item = (ItemInfo) d.dragInfo; 3161 3162 // Ensure that we have proper spans for the item that we are dropping 3163 if (item.spanX < 0 || item.spanY < 0) throw new RuntimeException("Improper spans found"); 3164 mDragViewVisualCenter = getDragViewVisualCenter(d.x, d.y, d.xOffset, d.yOffset, 3165 d.dragView, mDragViewVisualCenter); 3166 3167 final View child = (mDragInfo == null) ? null : mDragInfo.cell; 3168 // Identify whether we have dragged over a side page 3169 if (isSmall()) { 3170 if (mLauncher.getHotseat() != null && !isExternalDragWidget(d)) { 3171 if (isPointInSelfOverHotseat(d.x, d.y, r)) { 3172 layout = mLauncher.getHotseat().getLayout(); 3173 } 3174 } 3175 if (layout == null) { 3176 layout = findMatchingPageForDragOver(d.dragView, d.x, d.y, false); 3177 } 3178 if (layout != mDragTargetLayout) { 3179 setCurrentDropLayout(layout); 3180 setCurrentDragOverlappingLayout(layout); 3181 3182 boolean isInSpringLoadedMode = (mState == State.SPRING_LOADED); 3183 if (isInSpringLoadedMode) { 3184 if (mLauncher.isHotseatLayout(layout)) { 3185 mSpringLoadedDragController.cancel(); 3186 } else { 3187 mSpringLoadedDragController.setAlarm(mDragTargetLayout); 3188 } 3189 } 3190 } 3191 } else { 3192 // Test to see if we are over the hotseat otherwise just use the current page 3193 if (mLauncher.getHotseat() != null && !isDragWidget(d)) { 3194 if (isPointInSelfOverHotseat(d.x, d.y, r)) { 3195 layout = mLauncher.getHotseat().getLayout(); 3196 } 3197 } 3198 if (layout == null) { 3199 layout = getCurrentDropLayout(); 3200 } 3201 if (layout != mDragTargetLayout) { 3202 setCurrentDropLayout(layout); 3203 setCurrentDragOverlappingLayout(layout); 3204 } 3205 } 3206 3207 // Handle the drag over 3208 if (mDragTargetLayout != null) { 3209 // We want the point to be mapped to the dragTarget. 3210 if (mLauncher.isHotseatLayout(mDragTargetLayout)) { 3211 mapPointFromSelfToHotseatLayout(mLauncher.getHotseat(), mDragViewVisualCenter); 3212 } else { 3213 mapPointFromSelfToChild(mDragTargetLayout, mDragViewVisualCenter, null); 3214 } 3215 3216 ItemInfo info = (ItemInfo) d.dragInfo; 3217 3218 int minSpanX = item.spanX; 3219 int minSpanY = item.spanY; 3220 if (item.minSpanX > 0 && item.minSpanY > 0) { 3221 minSpanX = item.minSpanX; 3222 minSpanY = item.minSpanY; 3223 } 3224 3225 mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], 3226 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, 3227 mDragTargetLayout, mTargetCell); 3228 int reorderX = mTargetCell[0]; 3229 int reorderY = mTargetCell[1]; 3230 3231 setCurrentDropOverCell(mTargetCell[0], mTargetCell[1]); 3232 3233 float targetCellDistance = mDragTargetLayout.getDistanceFromCell( 3234 mDragViewVisualCenter[0], mDragViewVisualCenter[1], mTargetCell); 3235 3236 final View dragOverView = mDragTargetLayout.getChildAt(mTargetCell[0], 3237 mTargetCell[1]); 3238 3239 manageFolderFeedback(info, mDragTargetLayout, mTargetCell, 3240 targetCellDistance, dragOverView); 3241 3242 boolean nearestDropOccupied = mDragTargetLayout.isNearestDropLocationOccupied((int) 3243 mDragViewVisualCenter[0], (int) mDragViewVisualCenter[1], item.spanX, 3244 item.spanY, child, mTargetCell); 3245 3246 if (!nearestDropOccupied) { 3247 mDragTargetLayout.visualizeDropLocation(child, mDragOutline, 3248 (int) mDragViewVisualCenter[0], (int) mDragViewVisualCenter[1], 3249 mTargetCell[0], mTargetCell[1], item.spanX, item.spanY, false, 3250 d.dragView.getDragVisualizeOffset(), d.dragView.getDragRegion()); 3251 } else if ((mDragMode == DRAG_MODE_NONE || mDragMode == DRAG_MODE_REORDER) 3252 && !mReorderAlarm.alarmPending() && (mLastReorderX != reorderX || 3253 mLastReorderY != reorderY)) { 3254 3255 // Otherwise, if we aren't adding to or creating a folder and there's no pending 3256 // reorder, then we schedule a reorder 3257 ReorderAlarmListener listener = new ReorderAlarmListener(mDragViewVisualCenter, 3258 minSpanX, minSpanY, item.spanX, item.spanY, d.dragView, child); 3259 mReorderAlarm.setOnAlarmListener(listener); 3260 mReorderAlarm.setAlarm(REORDER_TIMEOUT); 3261 } 3262 3263 if (mDragMode == DRAG_MODE_CREATE_FOLDER || mDragMode == DRAG_MODE_ADD_TO_FOLDER || 3264 !nearestDropOccupied) { 3265 if (mDragTargetLayout != null) { 3266 mDragTargetLayout.revertTempState(); 3267 } 3268 } 3269 } 3270 } 3271 3272 private void manageFolderFeedback(ItemInfo info, CellLayout targetLayout, 3273 int[] targetCell, float distance, View dragOverView) { 3274 boolean userFolderPending = willCreateUserFolder(info, targetLayout, targetCell, distance, 3275 false); 3276 3277 if (mDragMode == DRAG_MODE_NONE && userFolderPending && 3278 !mFolderCreationAlarm.alarmPending()) { 3279 mFolderCreationAlarm.setOnAlarmListener(new 3280 FolderCreationAlarmListener(targetLayout, targetCell[0], targetCell[1])); 3281 mFolderCreationAlarm.setAlarm(FOLDER_CREATION_TIMEOUT); 3282 return; 3283 } 3284 3285 boolean willAddToFolder = 3286 willAddToExistingUserFolder(info, targetLayout, targetCell, distance); 3287 3288 if (willAddToFolder && mDragMode == DRAG_MODE_NONE) { 3289 mDragOverFolderIcon = ((FolderIcon) dragOverView); 3290 mDragOverFolderIcon.onDragEnter(info); 3291 if (targetLayout != null) { 3292 targetLayout.clearDragOutlines(); 3293 } 3294 setDragMode(DRAG_MODE_ADD_TO_FOLDER); 3295 return; 3296 } 3297 3298 if (mDragMode == DRAG_MODE_ADD_TO_FOLDER && !willAddToFolder) { 3299 setDragMode(DRAG_MODE_NONE); 3300 } 3301 if (mDragMode == DRAG_MODE_CREATE_FOLDER && !userFolderPending) { 3302 setDragMode(DRAG_MODE_NONE); 3303 } 3304 3305 return; 3306 } 3307 3308 class FolderCreationAlarmListener implements OnAlarmListener { 3309 CellLayout layout; 3310 int cellX; 3311 int cellY; 3312 3313 public FolderCreationAlarmListener(CellLayout layout, int cellX, int cellY) { 3314 this.layout = layout; 3315 this.cellX = cellX; 3316 this.cellY = cellY; 3317 } 3318 3319 public void onAlarm(Alarm alarm) { 3320 if (mDragFolderRingAnimator == null) { 3321 mDragFolderRingAnimator = new FolderRingAnimator(mLauncher, null); 3322 } 3323 mDragFolderRingAnimator.setCell(cellX, cellY); 3324 mDragFolderRingAnimator.setCellLayout(layout); 3325 mDragFolderRingAnimator.animateToAcceptState(); 3326 layout.showFolderAccept(mDragFolderRingAnimator); 3327 layout.clearDragOutlines(); 3328 setDragMode(DRAG_MODE_CREATE_FOLDER); 3329 } 3330 } 3331 3332 class ReorderAlarmListener implements OnAlarmListener { 3333 float[] dragViewCenter; 3334 int minSpanX, minSpanY, spanX, spanY; 3335 DragView dragView; 3336 View child; 3337 3338 public ReorderAlarmListener(float[] dragViewCenter, int minSpanX, int minSpanY, int spanX, 3339 int spanY, DragView dragView, View child) { 3340 this.dragViewCenter = dragViewCenter; 3341 this.minSpanX = minSpanX; 3342 this.minSpanY = minSpanY; 3343 this.spanX = spanX; 3344 this.spanY = spanY; 3345 this.child = child; 3346 this.dragView = dragView; 3347 } 3348 3349 public void onAlarm(Alarm alarm) { 3350 int[] resultSpan = new int[2]; 3351 mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], 3352 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, mDragTargetLayout, 3353 mTargetCell); 3354 mLastReorderX = mTargetCell[0]; 3355 mLastReorderY = mTargetCell[1]; 3356 3357 mTargetCell = mDragTargetLayout.createArea((int) mDragViewVisualCenter[0], 3358 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, spanX, spanY, 3359 child, mTargetCell, resultSpan, CellLayout.MODE_DRAG_OVER); 3360 3361 if (mTargetCell[0] < 0 || mTargetCell[1] < 0) { 3362 mDragTargetLayout.revertTempState(); 3363 } else { 3364 setDragMode(DRAG_MODE_REORDER); 3365 } 3366 3367 boolean resize = resultSpan[0] != spanX || resultSpan[1] != spanY; 3368 mDragTargetLayout.visualizeDropLocation(child, mDragOutline, 3369 (int) mDragViewVisualCenter[0], (int) mDragViewVisualCenter[1], 3370 mTargetCell[0], mTargetCell[1], resultSpan[0], resultSpan[1], resize, 3371 dragView.getDragVisualizeOffset(), dragView.getDragRegion()); 3372 } 3373 } 3374 3375 @Override 3376 public void getHitRectRelativeToDragLayer(Rect outRect) { 3377 // We want the workspace to have the whole area of the display (it will find the correct 3378 // cell layout to drop to in the existing drag/drop logic. 3379 mLauncher.getDragLayer().getDescendantRectRelativeToSelf(this, outRect); 3380 } 3381 3382 /** 3383 * Add the item specified by dragInfo to the given layout. 3384 * @return true if successful 3385 */ 3386 public boolean addExternalItemToScreen(ItemInfo dragInfo, CellLayout layout) { 3387 if (layout.findCellForSpan(mTempEstimate, dragInfo.spanX, dragInfo.spanY)) { 3388 onDropExternal(dragInfo.dropPos, (ItemInfo) dragInfo, (CellLayout) layout, false); 3389 return true; 3390 } 3391 mLauncher.showOutOfSpaceMessage(mLauncher.isHotseatLayout(layout)); 3392 return false; 3393 } 3394 3395 private void onDropExternal(int[] touchXY, Object dragInfo, 3396 CellLayout cellLayout, boolean insertAtFirst) { 3397 onDropExternal(touchXY, dragInfo, cellLayout, insertAtFirst, null); 3398 } 3399 3400 /** 3401 * Drop an item that didn't originate on one of the workspace screens. 3402 * It may have come from Launcher (e.g. from all apps or customize), or it may have 3403 * come from another app altogether. 3404 * 3405 * NOTE: This can also be called when we are outside of a drag event, when we want 3406 * to add an item to one of the workspace screens. 3407 */ 3408 private void onDropExternal(final int[] touchXY, final Object dragInfo, 3409 final CellLayout cellLayout, boolean insertAtFirst, DragObject d) { 3410 final Runnable exitSpringLoadedRunnable = new Runnable() { 3411 @Override 3412 public void run() { 3413 mLauncher.exitSpringLoadedDragModeDelayed(true, false, null); 3414 } 3415 }; 3416 3417 ItemInfo info = (ItemInfo) dragInfo; 3418 int spanX = info.spanX; 3419 int spanY = info.spanY; 3420 if (mDragInfo != null) { 3421 spanX = mDragInfo.spanX; 3422 spanY = mDragInfo.spanY; 3423 } 3424 3425 final long container = mLauncher.isHotseatLayout(cellLayout) ? 3426 LauncherSettings.Favorites.CONTAINER_HOTSEAT : 3427 LauncherSettings.Favorites.CONTAINER_DESKTOP; 3428 final long screenId = getIdForScreen(cellLayout); 3429 if (!mLauncher.isHotseatLayout(cellLayout) 3430 && screenId != getScreenIdForPageIndex(mCurrentPage) 3431 && mState != State.SPRING_LOADED) { 3432 snapToScreenId(screenId, null); 3433 } 3434 3435 if (info instanceof PendingAddItemInfo) { 3436 final PendingAddItemInfo pendingInfo = (PendingAddItemInfo) dragInfo; 3437 3438 boolean findNearestVacantCell = true; 3439 if (pendingInfo.itemType == LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT) { 3440 mTargetCell = findNearestArea((int) touchXY[0], (int) touchXY[1], spanX, spanY, 3441 cellLayout, mTargetCell); 3442 float distance = cellLayout.getDistanceFromCell(mDragViewVisualCenter[0], 3443 mDragViewVisualCenter[1], mTargetCell); 3444 if (willCreateUserFolder((ItemInfo) d.dragInfo, cellLayout, mTargetCell, 3445 distance, true) || willAddToExistingUserFolder((ItemInfo) d.dragInfo, 3446 cellLayout, mTargetCell, distance)) { 3447 findNearestVacantCell = false; 3448 } 3449 } 3450 3451 final ItemInfo item = (ItemInfo) d.dragInfo; 3452 boolean updateWidgetSize = false; 3453 if (findNearestVacantCell) { 3454 int minSpanX = item.spanX; 3455 int minSpanY = item.spanY; 3456 if (item.minSpanX > 0 && item.minSpanY > 0) { 3457 minSpanX = item.minSpanX; 3458 minSpanY = item.minSpanY; 3459 } 3460 int[] resultSpan = new int[2]; 3461 mTargetCell = cellLayout.createArea((int) mDragViewVisualCenter[0], 3462 (int) mDragViewVisualCenter[1], minSpanX, minSpanY, info.spanX, info.spanY, 3463 null, mTargetCell, resultSpan, CellLayout.MODE_ON_DROP_EXTERNAL); 3464 3465 if (resultSpan[0] != item.spanX || resultSpan[1] != item.spanY) { 3466 updateWidgetSize = true; 3467 } 3468 item.spanX = resultSpan[0]; 3469 item.spanY = resultSpan[1]; 3470 } 3471 3472 Runnable onAnimationCompleteRunnable = new Runnable() { 3473 @Override 3474 public void run() { 3475 // When dragging and dropping from customization tray, we deal with creating 3476 // widgets/shortcuts/folders in a slightly different way 3477 switch (pendingInfo.itemType) { 3478 case LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET: 3479 int span[] = new int[2]; 3480 span[0] = item.spanX; 3481 span[1] = item.spanY; 3482 mLauncher.addAppWidgetFromDrop((PendingAddWidgetInfo) pendingInfo, 3483 container, screenId, mTargetCell, span, null); 3484 break; 3485 case LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT: 3486 mLauncher.processShortcutFromDrop(pendingInfo.componentName, 3487 container, screenId, mTargetCell, null); 3488 break; 3489 default: 3490 throw new IllegalStateException("Unknown item type: " + 3491 pendingInfo.itemType); 3492 } 3493 } 3494 }; 3495 View finalView = pendingInfo.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET 3496 ? ((PendingAddWidgetInfo) pendingInfo).boundWidget : null; 3497 3498 if (finalView instanceof AppWidgetHostView && updateWidgetSize) { 3499 AppWidgetHostView awhv = (AppWidgetHostView) finalView; 3500 AppWidgetResizeFrame.updateWidgetSizeRanges(awhv, mLauncher, item.spanX, 3501 item.spanY); 3502 } 3503 3504 int animationStyle = ANIMATE_INTO_POSITION_AND_DISAPPEAR; 3505 if (pendingInfo.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET && 3506 ((PendingAddWidgetInfo) pendingInfo).info.configure != null) { 3507 animationStyle = ANIMATE_INTO_POSITION_AND_REMAIN; 3508 } 3509 animateWidgetDrop(info, cellLayout, d.dragView, onAnimationCompleteRunnable, 3510 animationStyle, finalView, true); 3511 } else { 3512 // This is for other drag/drop cases, like dragging from All Apps 3513 View view = null; 3514 3515 switch (info.itemType) { 3516 case LauncherSettings.Favorites.ITEM_TYPE_APPLICATION: 3517 case LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT: 3518 if (info.container == NO_ID && info instanceof AppInfo) { 3519 // Came from all apps -- make a copy 3520 info = new ShortcutInfo((AppInfo) info); 3521 } 3522 view = mLauncher.createShortcut(R.layout.application, cellLayout, 3523 (ShortcutInfo) info); 3524 break; 3525 case LauncherSettings.Favorites.ITEM_TYPE_FOLDER: 3526 view = FolderIcon.fromXml(R.layout.folder_icon, mLauncher, cellLayout, 3527 (FolderInfo) info, mIconCache); 3528 break; 3529 default: 3530 throw new IllegalStateException("Unknown item type: " + info.itemType); 3531 } 3532 3533 // First we find the cell nearest to point at which the item is 3534 // dropped, without any consideration to whether there is an item there. 3535 if (touchXY != null) { 3536 mTargetCell = findNearestArea((int) touchXY[0], (int) touchXY[1], spanX, spanY, 3537 cellLayout, mTargetCell); 3538 float distance = cellLayout.getDistanceFromCell(mDragViewVisualCenter[0], 3539 mDragViewVisualCenter[1], mTargetCell); 3540 d.postAnimationRunnable = exitSpringLoadedRunnable; 3541 if (createUserFolderIfNecessary(view, container, cellLayout, mTargetCell, distance, 3542 true, d.dragView, d.postAnimationRunnable)) { 3543 return; 3544 } 3545 if (addToExistingFolderIfNecessary(view, cellLayout, mTargetCell, distance, d, 3546 true)) { 3547 return; 3548 } 3549 } 3550 3551 if (touchXY != null) { 3552 // when dragging and dropping, just find the closest free spot 3553 mTargetCell = cellLayout.createArea((int) mDragViewVisualCenter[0], 3554 (int) mDragViewVisualCenter[1], 1, 1, 1, 1, 3555 null, mTargetCell, null, CellLayout.MODE_ON_DROP_EXTERNAL); 3556 } else { 3557 cellLayout.findCellForSpan(mTargetCell, 1, 1); 3558 } 3559 addInScreen(view, container, screenId, mTargetCell[0], mTargetCell[1], info.spanX, 3560 info.spanY, insertAtFirst); 3561 cellLayout.onDropChild(view); 3562 CellLayout.LayoutParams lp = (CellLayout.LayoutParams) view.getLayoutParams(); 3563 cellLayout.getShortcutsAndWidgets().measureChild(view); 3564 3565 LauncherModel.addOrMoveItemInDatabase(mLauncher, info, container, screenId, 3566 lp.cellX, lp.cellY); 3567 3568 if (d.dragView != null) { 3569 // We wrap the animation call in the temporary set and reset of the current 3570 // cellLayout to its final transform -- this means we animate the drag view to 3571 // the correct final location. 3572 setFinalTransitionTransform(cellLayout); 3573 mLauncher.getDragLayer().animateViewIntoPosition(d.dragView, view, 3574 exitSpringLoadedRunnable); 3575 resetTransitionTransform(cellLayout); 3576 } 3577 } 3578 } 3579 3580 public Bitmap createWidgetBitmap(ItemInfo widgetInfo, View layout) { 3581 int[] unScaledSize = mLauncher.getWorkspace().estimateItemSize(widgetInfo.spanX, 3582 widgetInfo.spanY, widgetInfo, false); 3583 int visibility = layout.getVisibility(); 3584 layout.setVisibility(VISIBLE); 3585 3586 int width = MeasureSpec.makeMeasureSpec(unScaledSize[0], MeasureSpec.EXACTLY); 3587 int height = MeasureSpec.makeMeasureSpec(unScaledSize[1], MeasureSpec.EXACTLY); 3588 Bitmap b = Bitmap.createBitmap(unScaledSize[0], unScaledSize[1], 3589 Bitmap.Config.ARGB_8888); 3590 Canvas c = new Canvas(b); 3591 3592 layout.measure(width, height); 3593 layout.layout(0, 0, unScaledSize[0], unScaledSize[1]); 3594 layout.draw(c); 3595 c.setBitmap(null); 3596 layout.setVisibility(visibility); 3597 return b; 3598 } 3599 3600 private void getFinalPositionForDropAnimation(int[] loc, float[] scaleXY, 3601 DragView dragView, CellLayout layout, ItemInfo info, int[] targetCell, 3602 boolean external, boolean scale) { 3603 // Now we animate the dragView, (ie. the widget or shortcut preview) into its final 3604 // location and size on the home screen. 3605 int spanX = info.spanX; 3606 int spanY = info.spanY; 3607 3608 Rect r = estimateItemPosition(layout, info, targetCell[0], targetCell[1], spanX, spanY); 3609 loc[0] = r.left; 3610 loc[1] = r.top; 3611 3612 setFinalTransitionTransform(layout); 3613 float cellLayoutScale = 3614 mLauncher.getDragLayer().getDescendantCoordRelativeToSelf(layout, loc, true); 3615 resetTransitionTransform(layout); 3616 3617 float dragViewScaleX; 3618 float dragViewScaleY; 3619 if (scale) { 3620 dragViewScaleX = (1.0f * r.width()) / dragView.getMeasuredWidth(); 3621 dragViewScaleY = (1.0f * r.height()) / dragView.getMeasuredHeight(); 3622 } else { 3623 dragViewScaleX = 1f; 3624 dragViewScaleY = 1f; 3625 } 3626 3627 // The animation will scale the dragView about its center, so we need to center about 3628 // the final location. 3629 loc[0] -= (dragView.getMeasuredWidth() - cellLayoutScale * r.width()) / 2; 3630 loc[1] -= (dragView.getMeasuredHeight() - cellLayoutScale * r.height()) / 2; 3631 3632 scaleXY[0] = dragViewScaleX * cellLayoutScale; 3633 scaleXY[1] = dragViewScaleY * cellLayoutScale; 3634 } 3635 3636 public void animateWidgetDrop(ItemInfo info, CellLayout cellLayout, DragView dragView, 3637 final Runnable onCompleteRunnable, int animationType, final View finalView, 3638 boolean external) { 3639 Rect from = new Rect(); 3640 mLauncher.getDragLayer().getViewRectRelativeToSelf(dragView, from); 3641 3642 int[] finalPos = new int[2]; 3643 float scaleXY[] = new float[2]; 3644 boolean scalePreview = !(info instanceof PendingAddShortcutInfo); 3645 getFinalPositionForDropAnimation(finalPos, scaleXY, dragView, cellLayout, info, mTargetCell, 3646 external, scalePreview); 3647 3648 Resources res = mLauncher.getResources(); 3649 int duration = res.getInteger(R.integer.config_dropAnimMaxDuration) - 200; 3650 3651 // In the case where we've prebound the widget, we remove it from the DragLayer 3652 if (finalView instanceof AppWidgetHostView && external) { 3653 Log.d(TAG, "6557954 Animate widget drop, final view is appWidgetHostView"); 3654 mLauncher.getDragLayer().removeView(finalView); 3655 } 3656 if ((animationType == ANIMATE_INTO_POSITION_AND_RESIZE || external) && finalView != null) { 3657 Bitmap crossFadeBitmap = createWidgetBitmap(info, finalView); 3658 dragView.setCrossFadeBitmap(crossFadeBitmap); 3659 dragView.crossFade((int) (duration * 0.8f)); 3660 } else if (info.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET && external) { 3661 scaleXY[0] = scaleXY[1] = Math.min(scaleXY[0], scaleXY[1]); 3662 } 3663 3664 DragLayer dragLayer = mLauncher.getDragLayer(); 3665 if (animationType == CANCEL_TWO_STAGE_WIDGET_DROP_ANIMATION) { 3666 mLauncher.getDragLayer().animateViewIntoPosition(dragView, finalPos, 0f, 0.1f, 0.1f, 3667 DragLayer.ANIMATION_END_DISAPPEAR, onCompleteRunnable, duration); 3668 } else { 3669 int endStyle; 3670 if (animationType == ANIMATE_INTO_POSITION_AND_REMAIN) { 3671 endStyle = DragLayer.ANIMATION_END_REMAIN_VISIBLE; 3672 } else { 3673 endStyle = DragLayer.ANIMATION_END_DISAPPEAR;; 3674 } 3675 3676 Runnable onComplete = new Runnable() { 3677 @Override 3678 public void run() { 3679 if (finalView != null) { 3680 finalView.setVisibility(VISIBLE); 3681 } 3682 if (onCompleteRunnable != null) { 3683 onCompleteRunnable.run(); 3684 } 3685 } 3686 }; 3687 dragLayer.animateViewIntoPosition(dragView, from.left, from.top, finalPos[0], 3688 finalPos[1], 1, 1, 1, scaleXY[0], scaleXY[1], onComplete, endStyle, 3689 duration, this); 3690 } 3691 } 3692 3693 public void setFinalTransitionTransform(CellLayout layout) { 3694 if (isSwitchingState()) { 3695 mCurrentScale = getScaleX(); 3696 setScaleX(mNewScale); 3697 setScaleY(mNewScale); 3698 } 3699 } 3700 public void resetTransitionTransform(CellLayout layout) { 3701 if (isSwitchingState()) { 3702 setScaleX(mCurrentScale); 3703 setScaleY(mCurrentScale); 3704 } 3705 } 3706 3707 /** 3708 * Return the current {@link CellLayout}, correctly picking the destination 3709 * screen while a scroll is in progress. 3710 */ 3711 public CellLayout getCurrentDropLayout() { 3712 return (CellLayout) getChildAt(getNextPage()); 3713 } 3714 3715 /** 3716 * Return the current CellInfo describing our current drag; this method exists 3717 * so that Launcher can sync this object with the correct info when the activity is created/ 3718 * destroyed 3719 * 3720 */ 3721 public CellLayout.CellInfo getDragInfo() { 3722 return mDragInfo; 3723 } 3724 3725 /** 3726 * Calculate the nearest cell where the given object would be dropped. 3727 * 3728 * pixelX and pixelY should be in the coordinate system of layout 3729 */ 3730 private int[] findNearestArea(int pixelX, int pixelY, 3731 int spanX, int spanY, CellLayout layout, int[] recycle) { 3732 return layout.findNearestArea( 3733 pixelX, pixelY, spanX, spanY, recycle); 3734 } 3735 3736 void setup(DragController dragController) { 3737 mSpringLoadedDragController = new SpringLoadedDragController(mLauncher); 3738 mDragController = dragController; 3739 3740 // hardware layers on children are enabled on startup, but should be disabled until 3741 // needed 3742 updateChildrenLayersEnabled(false); 3743 setWallpaperDimension(); 3744 } 3745 3746 /** 3747 * Called at the end of a drag which originated on the workspace. 3748 */ 3749 public void onDropCompleted(final View target, final DragObject d, 3750 final boolean isFlingToDelete, final boolean success) { 3751 if (mDeferDropAfterUninstall) { 3752 mDeferredAction = new Runnable() { 3753 public void run() { 3754 onDropCompleted(target, d, isFlingToDelete, success); 3755 mDeferredAction = null; 3756 } 3757 }; 3758 return; 3759 } 3760 3761 boolean beingCalledAfterUninstall = mDeferredAction != null; 3762 3763 if (success && !(beingCalledAfterUninstall && !mUninstallSuccessful)) { 3764 if (target != this && mDragInfo != null) { 3765 CellLayout parentCell = getParentCellLayoutForView(mDragInfo.cell); 3766 if (parentCell != null) { 3767 parentCell.removeView(mDragInfo.cell); 3768 } 3769 if (mDragInfo.cell instanceof DropTarget) { 3770 mDragController.removeDropTarget((DropTarget) mDragInfo.cell); 3771 } 3772 // If we move the item to anything not on the Workspace, check if any empty 3773 // screens need to be removed. If we dropped back on the workspace, this will 3774 // be done post drop animation. 3775 stripEmptyScreens(); 3776 } 3777 } else if (mDragInfo != null) { 3778 CellLayout cellLayout; 3779 if (mLauncher.isHotseatLayout(target)) { 3780 cellLayout = mLauncher.getHotseat().getLayout(); 3781 } else { 3782 cellLayout = getScreenWithId(mDragInfo.screenId); 3783 } 3784 cellLayout.onDropChild(mDragInfo.cell); 3785 } 3786 if ((d.cancelled || (beingCalledAfterUninstall && !mUninstallSuccessful)) 3787 && mDragInfo.cell != null) { 3788 mDragInfo.cell.setVisibility(VISIBLE); 3789 } 3790 mDragOutline = null; 3791 mDragInfo = null; 3792 } 3793 3794 public void deferCompleteDropAfterUninstallActivity() { 3795 mDeferDropAfterUninstall = true; 3796 } 3797 3798 /// maybe move this into a smaller part 3799 public void onUninstallActivityReturned(boolean success) { 3800 mDeferDropAfterUninstall = false; 3801 mUninstallSuccessful = success; 3802 if (mDeferredAction != null) { 3803 mDeferredAction.run(); 3804 } 3805 } 3806 3807 void updateItemLocationsInDatabase(CellLayout cl) { 3808 int count = cl.getShortcutsAndWidgets().getChildCount(); 3809 3810 long screenId = getIdForScreen(cl); 3811 int container = Favorites.CONTAINER_DESKTOP; 3812 3813 if (mLauncher.isHotseatLayout(cl)) { 3814 screenId = -1; 3815 container = Favorites.CONTAINER_HOTSEAT; 3816 } 3817 3818 for (int i = 0; i < count; i++) { 3819 View v = cl.getShortcutsAndWidgets().getChildAt(i); 3820 ItemInfo info = (ItemInfo) v.getTag(); 3821 // Null check required as the AllApps button doesn't have an item info 3822 if (info != null && info.requiresDbUpdate) { 3823 info.requiresDbUpdate = false; 3824 LauncherModel.modifyItemInDatabase(mLauncher, info, container, screenId, info.cellX, 3825 info.cellY, info.spanX, info.spanY); 3826 } 3827 } 3828 } 3829 3830 ArrayList<ComponentName> getUniqueComponents(boolean stripDuplicates, ArrayList<ComponentName> duplicates) { 3831 ArrayList<ComponentName> uniqueIntents = new ArrayList<ComponentName>(); 3832 getUniqueIntents((CellLayout) mLauncher.getHotseat().getLayout(), uniqueIntents, duplicates, false); 3833 int count = getChildCount(); 3834 for (int i = 0; i < count; i++) { 3835 CellLayout cl = (CellLayout) getChildAt(i); 3836 getUniqueIntents(cl, uniqueIntents, duplicates, false); 3837 } 3838 return uniqueIntents; 3839 } 3840 3841 void getUniqueIntents(CellLayout cl, ArrayList<ComponentName> uniqueIntents, 3842 ArrayList<ComponentName> duplicates, boolean stripDuplicates) { 3843 int count = cl.getShortcutsAndWidgets().getChildCount(); 3844 3845 ArrayList<View> children = new ArrayList<View>(); 3846 for (int i = 0; i < count; i++) { 3847 View v = cl.getShortcutsAndWidgets().getChildAt(i); 3848 children.add(v); 3849 } 3850 3851 for (int i = 0; i < count; i++) { 3852 View v = children.get(i); 3853 ItemInfo info = (ItemInfo) v.getTag(); 3854 // Null check required as the AllApps button doesn't have an item info 3855 if (info instanceof ShortcutInfo) { 3856 ShortcutInfo si = (ShortcutInfo) info; 3857 ComponentName cn = si.intent.getComponent(); 3858 3859 Uri dataUri = si.intent.getData(); 3860 // If dataUri is not null / empty or if this component isn't one that would 3861 // have previously showed up in the AllApps list, then this is a widget-type 3862 // shortcut, so ignore it. 3863 if (dataUri != null && !dataUri.equals(Uri.EMPTY)) { 3864 continue; 3865 } 3866 3867 if (!uniqueIntents.contains(cn)) { 3868 uniqueIntents.add(cn); 3869 } else { 3870 if (stripDuplicates) { 3871 cl.removeViewInLayout(v); 3872 LauncherModel.deleteItemFromDatabase(mLauncher, si); 3873 } 3874 if (duplicates != null) { 3875 duplicates.add(cn); 3876 } 3877 } 3878 } 3879 if (v instanceof FolderIcon) { 3880 FolderIcon fi = (FolderIcon) v; 3881 ArrayList<View> items = fi.getFolder().getItemsInReadingOrder(); 3882 for (int j = 0; j < items.size(); j++) { 3883 if (items.get(j).getTag() instanceof ShortcutInfo) { 3884 ShortcutInfo si = (ShortcutInfo) items.get(j).getTag(); 3885 ComponentName cn = si.intent.getComponent(); 3886 3887 Uri dataUri = si.intent.getData(); 3888 // If dataUri is not null / empty or if this component isn't one that would 3889 // have previously showed up in the AllApps list, then this is a widget-type 3890 // shortcut, so ignore it. 3891 if (dataUri != null && !dataUri.equals(Uri.EMPTY)) { 3892 continue; 3893 } 3894 3895 if (!uniqueIntents.contains(cn)) { 3896 uniqueIntents.add(cn); 3897 } else { 3898 if (stripDuplicates) { 3899 fi.getFolderInfo().remove(si); 3900 LauncherModel.deleteItemFromDatabase(mLauncher, si); 3901 } 3902 if (duplicates != null) { 3903 duplicates.add(cn); 3904 } 3905 } 3906 } 3907 } 3908 } 3909 } 3910 } 3911 3912 void saveWorkspaceToDb() { 3913 saveWorkspaceScreenToDb((CellLayout) mLauncher.getHotseat().getLayout()); 3914 int count = getChildCount(); 3915 for (int i = 0; i < count; i++) { 3916 CellLayout cl = (CellLayout) getChildAt(i); 3917 saveWorkspaceScreenToDb(cl); 3918 } 3919 } 3920 3921 void saveWorkspaceScreenToDb(CellLayout cl) { 3922 int count = cl.getShortcutsAndWidgets().getChildCount(); 3923 3924 long screenId = getIdForScreen(cl); 3925 int container = Favorites.CONTAINER_DESKTOP; 3926 3927 Hotseat hotseat = mLauncher.getHotseat(); 3928 if (mLauncher.isHotseatLayout(cl)) { 3929 screenId = -1; 3930 container = Favorites.CONTAINER_HOTSEAT; 3931 } 3932 3933 for (int i = 0; i < count; i++) { 3934 View v = cl.getShortcutsAndWidgets().getChildAt(i); 3935 ItemInfo info = (ItemInfo) v.getTag(); 3936 // Null check required as the AllApps button doesn't have an item info 3937 if (info != null) { 3938 int cellX = info.cellX; 3939 int cellY = info.cellY; 3940 if (container == Favorites.CONTAINER_HOTSEAT) { 3941 cellX = hotseat.getCellXFromOrder((int) info.screenId); 3942 cellY = hotseat.getCellYFromOrder((int) info.screenId); 3943 } 3944 LauncherModel.addItemToDatabase(mLauncher, info, container, screenId, cellX, 3945 cellY, false); 3946 } 3947 if (v instanceof FolderIcon) { 3948 FolderIcon fi = (FolderIcon) v; 3949 fi.getFolder().addItemLocationsInDatabase(); 3950 } 3951 } 3952 } 3953 3954 @Override 3955 public boolean supportsFlingToDelete() { 3956 return true; 3957 } 3958 3959 @Override 3960 public void onFlingToDelete(DragObject d, int x, int y, PointF vec) { 3961 // Do nothing 3962 } 3963 3964 @Override 3965 public void onFlingToDeleteCompleted() { 3966 // Do nothing 3967 } 3968 3969 public boolean isDropEnabled() { 3970 return true; 3971 } 3972 3973 @Override 3974 protected void onRestoreInstanceState(Parcelable state) { 3975 super.onRestoreInstanceState(state); 3976 Launcher.setScreen(mCurrentPage); 3977 } 3978 3979 @Override 3980 protected void dispatchRestoreInstanceState(SparseArray<Parcelable> container) { 3981 // We don't dispatch restoreInstanceState to our children using this code path. 3982 // Some pages will be restored immediately as their items are bound immediately, and 3983 // others we will need to wait until after their items are bound. 3984 mSavedStates = container; 3985 } 3986 3987 public void restoreInstanceStateForChild(int child) { 3988 if (mSavedStates != null) { 3989 mRestoredPages.add(child); 3990 CellLayout cl = (CellLayout) getChildAt(child); 3991 cl.restoreInstanceState(mSavedStates); 3992 } 3993 } 3994 3995 public void restoreInstanceStateForRemainingPages() { 3996 int count = getChildCount(); 3997 for (int i = 0; i < count; i++) { 3998 if (!mRestoredPages.contains(i)) { 3999 restoreInstanceStateForChild(i); 4000 } 4001 } 4002 mRestoredPages.clear(); 4003 } 4004 4005 @Override 4006 public void scrollLeft() { 4007 if (!isSmall() && !mIsSwitchingState) { 4008 super.scrollLeft(); 4009 } 4010 Folder openFolder = getOpenFolder(); 4011 if (openFolder != null) { 4012 openFolder.completeDragExit(); 4013 } 4014 } 4015 4016 @Override 4017 public void scrollRight() { 4018 if (!isSmall() && !mIsSwitchingState) { 4019 super.scrollRight(); 4020 } 4021 Folder openFolder = getOpenFolder(); 4022 if (openFolder != null) { 4023 openFolder.completeDragExit(); 4024 } 4025 } 4026 4027 @Override 4028 public boolean onEnterScrollArea(int x, int y, int direction) { 4029 // Ignore the scroll area if we are dragging over the hot seat 4030 boolean isPortrait = !LauncherAppState.isScreenLandscape(getContext()); 4031 if (mLauncher.getHotseat() != null && isPortrait) { 4032 Rect r = new Rect(); 4033 mLauncher.getHotseat().getHitRect(r); 4034 if (r.contains(x, y)) { 4035 return false; 4036 } 4037 } 4038 4039 boolean result = false; 4040 if (!isSmall() && !mIsSwitchingState && getOpenFolder() == null) { 4041 mInScrollArea = true; 4042 4043 final int page = getNextPage() + 4044 (direction == DragController.SCROLL_LEFT ? -1 : 1); 4045 // We always want to exit the current layout to ensure parity of enter / exit 4046 setCurrentDropLayout(null); 4047 4048 if (0 <= page && page < getChildCount()) { 4049 // Ensure that we are not dragging over to the custom content screen 4050 if (getScreenIdForPageIndex(page) == CUSTOM_CONTENT_SCREEN_ID) { 4051 return false; 4052 } 4053 4054 CellLayout layout = (CellLayout) getChildAt(page); 4055 setCurrentDragOverlappingLayout(layout); 4056 4057 // Workspace is responsible for drawing the edge glow on adjacent pages, 4058 // so we need to redraw the workspace when this may have changed. 4059 invalidate(); 4060 result = true; 4061 } 4062 } 4063 return result; 4064 } 4065 4066 @Override 4067 public boolean onExitScrollArea() { 4068 boolean result = false; 4069 if (mInScrollArea) { 4070 invalidate(); 4071 CellLayout layout = getCurrentDropLayout(); 4072 setCurrentDropLayout(layout); 4073 setCurrentDragOverlappingLayout(layout); 4074 4075 result = true; 4076 mInScrollArea = false; 4077 } 4078 return result; 4079 } 4080 4081 private void onResetScrollArea() { 4082 setCurrentDragOverlappingLayout(null); 4083 mInScrollArea = false; 4084 } 4085 4086 /** 4087 * Returns a specific CellLayout 4088 */ 4089 CellLayout getParentCellLayoutForView(View v) { 4090 ArrayList<CellLayout> layouts = getWorkspaceAndHotseatCellLayouts(); 4091 for (CellLayout layout : layouts) { 4092 if (layout.getShortcutsAndWidgets().indexOfChild(v) > -1) { 4093 return layout; 4094 } 4095 } 4096 return null; 4097 } 4098 4099 /** 4100 * Returns a list of all the CellLayouts in the workspace. 4101 */ 4102 ArrayList<CellLayout> getWorkspaceAndHotseatCellLayouts() { 4103 ArrayList<CellLayout> layouts = new ArrayList<CellLayout>(); 4104 int screenCount = getChildCount(); 4105 for (int screen = 0; screen < screenCount; screen++) { 4106 layouts.add(((CellLayout) getChildAt(screen))); 4107 } 4108 if (mLauncher.getHotseat() != null) { 4109 layouts.add(mLauncher.getHotseat().getLayout()); 4110 } 4111 return layouts; 4112 } 4113 4114 /** 4115 * We should only use this to search for specific children. Do not use this method to modify 4116 * ShortcutsAndWidgetsContainer directly. Includes ShortcutAndWidgetContainers from 4117 * the hotseat and workspace pages 4118 */ 4119 ArrayList<ShortcutAndWidgetContainer> getAllShortcutAndWidgetContainers() { 4120 ArrayList<ShortcutAndWidgetContainer> childrenLayouts = 4121 new ArrayList<ShortcutAndWidgetContainer>(); 4122 int screenCount = getChildCount(); 4123 for (int screen = 0; screen < screenCount; screen++) { 4124 childrenLayouts.add(((CellLayout) getChildAt(screen)).getShortcutsAndWidgets()); 4125 } 4126 if (mLauncher.getHotseat() != null) { 4127 childrenLayouts.add(mLauncher.getHotseat().getLayout().getShortcutsAndWidgets()); 4128 } 4129 return childrenLayouts; 4130 } 4131 4132 public Folder getFolderForTag(Object tag) { 4133 ArrayList<ShortcutAndWidgetContainer> childrenLayouts = 4134 getAllShortcutAndWidgetContainers(); 4135 for (ShortcutAndWidgetContainer layout: childrenLayouts) { 4136 int count = layout.getChildCount(); 4137 for (int i = 0; i < count; i++) { 4138 View child = layout.getChildAt(i); 4139 if (child instanceof Folder) { 4140 Folder f = (Folder) child; 4141 if (f.getInfo() == tag && f.getInfo().opened) { 4142 return f; 4143 } 4144 } 4145 } 4146 } 4147 return null; 4148 } 4149 4150 public View getViewForTag(Object tag) { 4151 ArrayList<ShortcutAndWidgetContainer> childrenLayouts = 4152 getAllShortcutAndWidgetContainers(); 4153 for (ShortcutAndWidgetContainer layout: childrenLayouts) { 4154 int count = layout.getChildCount(); 4155 for (int i = 0; i < count; i++) { 4156 View child = layout.getChildAt(i); 4157 if (child.getTag() == tag) { 4158 return child; 4159 } 4160 } 4161 } 4162 return null; 4163 } 4164 4165 void clearDropTargets() { 4166 ArrayList<ShortcutAndWidgetContainer> childrenLayouts = 4167 getAllShortcutAndWidgetContainers(); 4168 for (ShortcutAndWidgetContainer layout: childrenLayouts) { 4169 int childCount = layout.getChildCount(); 4170 for (int j = 0; j < childCount; j++) { 4171 View v = layout.getChildAt(j); 4172 if (v instanceof DropTarget) { 4173 mDragController.removeDropTarget((DropTarget) v); 4174 } 4175 } 4176 } 4177 } 4178 4179 // Removes ALL items that match a given package name, this is usually called when a package 4180 // has been removed and we want to remove all components (widgets, shortcuts, apps) that 4181 // belong to that package. 4182 void removeItemsByPackageName(final ArrayList<String> packages) { 4183 final HashSet<String> packageNames = new HashSet<String>(); 4184 packageNames.addAll(packages); 4185 4186 // Filter out all the ItemInfos that this is going to affect 4187 final HashSet<ItemInfo> infos = new HashSet<ItemInfo>(); 4188 final HashSet<ComponentName> cns = new HashSet<ComponentName>(); 4189 ArrayList<CellLayout> cellLayouts = getWorkspaceAndHotseatCellLayouts(); 4190 for (CellLayout layoutParent : cellLayouts) { 4191 ViewGroup layout = layoutParent.getShortcutsAndWidgets(); 4192 int childCount = layout.getChildCount(); 4193 for (int i = 0; i < childCount; ++i) { 4194 View view = layout.getChildAt(i); 4195 infos.add((ItemInfo) view.getTag()); 4196 } 4197 } 4198 LauncherModel.ItemInfoFilter filter = new LauncherModel.ItemInfoFilter() { 4199 @Override 4200 public boolean filterItem(ItemInfo parent, ItemInfo info, 4201 ComponentName cn) { 4202 if (packageNames.contains(cn.getPackageName())) { 4203 cns.add(cn); 4204 return true; 4205 } 4206 return false; 4207 } 4208 }; 4209 LauncherModel.filterItemInfos(infos, filter); 4210 4211 // Remove the affected components 4212 removeItemsByComponentName(cns); 4213 } 4214 4215 // Removes items that match the application info specified, when applications are removed 4216 // as a part of an update, this is called to ensure that other widgets and application 4217 // shortcuts are not removed. 4218 void removeItemsByApplicationInfo(final ArrayList<AppInfo> appInfos) { 4219 // Just create a hash table of all the specific components that this will affect 4220 HashSet<ComponentName> cns = new HashSet<ComponentName>(); 4221 for (AppInfo info : appInfos) { 4222 cns.add(info.componentName); 4223 } 4224 4225 // Remove all the things 4226 removeItemsByComponentName(cns); 4227 } 4228 4229 void removeItemsByComponentName(final HashSet<ComponentName> componentNames) { 4230 ArrayList<CellLayout> cellLayouts = getWorkspaceAndHotseatCellLayouts(); 4231 for (final CellLayout layoutParent: cellLayouts) { 4232 final ViewGroup layout = layoutParent.getShortcutsAndWidgets(); 4233 4234 final HashMap<ItemInfo, View> children = new HashMap<ItemInfo, View>(); 4235 for (int j = 0; j < layout.getChildCount(); j++) { 4236 final View view = layout.getChildAt(j); 4237 children.put((ItemInfo) view.getTag(), view); 4238 } 4239 4240 final ArrayList<View> childrenToRemove = new ArrayList<View>(); 4241 final HashMap<FolderInfo, ArrayList<ShortcutInfo>> folderAppsToRemove = 4242 new HashMap<FolderInfo, ArrayList<ShortcutInfo>>(); 4243 LauncherModel.ItemInfoFilter filter = new LauncherModel.ItemInfoFilter() { 4244 @Override 4245 public boolean filterItem(ItemInfo parent, ItemInfo info, 4246 ComponentName cn) { 4247 if (parent instanceof FolderInfo) { 4248 if (componentNames.contains(cn)) { 4249 FolderInfo folder = (FolderInfo) parent; 4250 ArrayList<ShortcutInfo> appsToRemove; 4251 if (folderAppsToRemove.containsKey(folder)) { 4252 appsToRemove = folderAppsToRemove.get(folder); 4253 } else { 4254 appsToRemove = new ArrayList<ShortcutInfo>(); 4255 folderAppsToRemove.put(folder, appsToRemove); 4256 } 4257 appsToRemove.add((ShortcutInfo) info); 4258 return true; 4259 } 4260 } else { 4261 if (componentNames.contains(cn)) { 4262 childrenToRemove.add(children.get(info)); 4263 return true; 4264 } 4265 } 4266 return false; 4267 } 4268 }; 4269 LauncherModel.filterItemInfos(children.keySet(), filter); 4270 4271 // Remove all the apps from their folders 4272 for (FolderInfo folder : folderAppsToRemove.keySet()) { 4273 ArrayList<ShortcutInfo> appsToRemove = folderAppsToRemove.get(folder); 4274 for (ShortcutInfo info : appsToRemove) { 4275 folder.remove(info); 4276 } 4277 } 4278 4279 // Remove all the other children 4280 for (View child : childrenToRemove) { 4281 // Note: We can not remove the view directly from CellLayoutChildren as this 4282 // does not re-mark the spaces as unoccupied. 4283 layoutParent.removeViewInLayout(child); 4284 if (child instanceof DropTarget) { 4285 mDragController.removeDropTarget((DropTarget) child); 4286 } 4287 } 4288 4289 if (childrenToRemove.size() > 0) { 4290 layout.requestLayout(); 4291 layout.invalidate(); 4292 } 4293 } 4294 4295 // Strip all the empty screens 4296 stripEmptyScreens(); 4297 } 4298 4299 void updateShortcuts(ArrayList<AppInfo> apps) { 4300 ArrayList<ShortcutAndWidgetContainer> childrenLayouts = getAllShortcutAndWidgetContainers(); 4301 for (ShortcutAndWidgetContainer layout: childrenLayouts) { 4302 int childCount = layout.getChildCount(); 4303 for (int j = 0; j < childCount; j++) { 4304 final View view = layout.getChildAt(j); 4305 Object tag = view.getTag(); 4306 4307 if (LauncherModel.isShortcutInfoUpdateable((ItemInfo) tag)) { 4308 ShortcutInfo info = (ShortcutInfo) tag; 4309 4310 final Intent intent = info.intent; 4311 final ComponentName name = intent.getComponent(); 4312 final int appCount = apps.size(); 4313 for (int k = 0; k < appCount; k++) { 4314 AppInfo app = apps.get(k); 4315 if (app.componentName.equals(name)) { 4316 BubbleTextView shortcut = (BubbleTextView) view; 4317 info.updateIcon(mIconCache); 4318 info.title = app.title.toString(); 4319 shortcut.applyFromShortcutInfo(info, mIconCache); 4320 } 4321 } 4322 } 4323 } 4324 } 4325 } 4326 4327 private void moveToScreen(int page, boolean animate) { 4328 if (!isSmall()) { 4329 if (animate) { 4330 snapToPage(page); 4331 } else { 4332 setCurrentPage(page); 4333 } 4334 } 4335 View child = getChildAt(page); 4336 if (child != null) { 4337 child.requestFocus(); 4338 } 4339 } 4340 4341 void moveToDefaultScreen(boolean animate) { 4342 moveToScreen(mDefaultPage, animate); 4343 } 4344 4345 void moveToCustomContentScreen(boolean animate) { 4346 if (hasCustomContent()) { 4347 int ccIndex = getPageIndexForScreenId(CUSTOM_CONTENT_SCREEN_ID); 4348 if (animate) { 4349 snapToPage(ccIndex); 4350 } else { 4351 setCurrentPage(ccIndex); 4352 } 4353 View child = getChildAt(ccIndex); 4354 if (child != null) { 4355 child.requestFocus(); 4356 } 4357 } 4358 } 4359 4360 @Override 4361 protected PageIndicator.PageMarkerResources getPageIndicatorMarker(int pageIndex) { 4362 long screenId = getScreenIdForPageIndex(pageIndex); 4363 if (screenId == EXTRA_EMPTY_SCREEN_ID) { 4364 int count = mScreenOrder.size() - numCustomPages(); 4365 if (count > 1) { 4366 return new PageIndicator.PageMarkerResources(R.drawable.ic_pageindicator_current, 4367 R.drawable.ic_pageindicator_add); 4368 } 4369 } 4370 4371 return super.getPageIndicatorMarker(pageIndex); 4372 } 4373 4374 @Override 4375 public void syncPages() { 4376 } 4377 4378 @Override 4379 public void syncPageItems(int page, boolean immediate) { 4380 } 4381 4382 protected String getPageIndicatorDescription() { 4383 String settings = getResources().getString(R.string.settings_button_text); 4384 return getCurrentPageDescription() + ", " + settings; 4385 } 4386 4387 protected String getCurrentPageDescription() { 4388 int page = (mNextPage != INVALID_PAGE) ? mNextPage : mCurrentPage; 4389 int delta = numCustomPages(); 4390 if (hasCustomContent() && getNextPage() == 0) { 4391 return mCustomContentDescription; 4392 } 4393 return String.format(getContext().getString(R.string.workspace_scroll_format), 4394 page + 1 - delta, getChildCount() - delta); 4395 } 4396 4397 public void getLocationInDragLayer(int[] loc) { 4398 mLauncher.getDragLayer().getLocationInDragLayer(this, loc); 4399 } 4400} 4401