131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project/* 231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project * Copyright (C) 2008 The Android Open Source Project 331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project * 431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project * Licensed under the Apache License, Version 2.0 (the "License"); 531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project * you may not use this file except in compliance with the License. 631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project * You may obtain a copy of the License at 731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project * 831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project * http://www.apache.org/licenses/LICENSE-2.0 931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project * 1031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project * Unless required by applicable law or agreed to in writing, software 1131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project * distributed under the License is distributed on an "AS IS" BASIS, 1231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 1331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project * See the License for the specific language governing permissions and 1431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project * limitations under the License. 1531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project */ 1631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project 17a5902524d4403885eb4c50360bf3465c6be796efJoe Onoratopackage com.android.launcher2; 1831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project 1900acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onoratoimport android.content.Context; 206e1bdaf4198f9eb7b4124550d3ad07da2a0226e4Winson Chungimport android.content.res.Resources; 2100acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onoratoimport android.graphics.Bitmap; 22b8c69f3c17a40adc2d85e8e996f754c383c293dcWinson Chungimport android.graphics.Point; 23043f2af567178b82b0b41f12d379e7dd12da2936Winson Chungimport android.graphics.PointF; 2400acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onoratoimport android.graphics.Rect; 2500acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onoratoimport android.os.Handler; 260280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurkaimport android.os.IBinder; 2700acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onoratoimport android.os.Vibrator; 2800acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onoratoimport android.util.Log; 2900acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onoratoimport android.view.KeyEvent; 3000acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onoratoimport android.view.MotionEvent; 31043f2af567178b82b0b41f12d379e7dd12da2936Winson Chungimport android.view.VelocityTracker; 320280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurkaimport android.view.View; 33a16fd5a6bd5371d40a5679261d416f06f8efa022Patrick Dubroyimport android.view.ViewConfiguration; 3400acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onoratoimport android.view.inputmethod.InputMethodManager; 3500acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato 36120980bd00f5eecec5717f49a3d7db96571025a9Adam Cohenimport com.android.launcher.R; 37c0dcf597084d00e4c23a7fea5fd0738f6c095a6bAdam Cohen 38c0dcf597084d00e4c23a7fea5fd0738f6c095a6bAdam Cohenimport java.util.ArrayList; 3931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project 4031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project/** 4100acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato * Class for initiating a drag within a view or across multiple views. 4231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project */ 4300acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onoratopublic class DragController { 442e5c432a0aa7e83031575df73bed43a297e2eed3Joe Onorato private static final String TAG = "Launcher.DragController"; 452e5c432a0aa7e83031575df73bed43a297e2eed3Joe Onorato 4600acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato /** Indicates the drag is a move. */ 4700acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato public static int DRAG_ACTION_MOVE = 0; 4800acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato 4900acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato /** Indicates the drag is a copy. */ 5000acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato public static int DRAG_ACTION_COPY = 1; 5100acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato 52aa15ffe60e28b923ebf3e3162ce427ca6feae803Winson Chung private static final int SCROLL_DELAY = 500; 53aa15ffe60e28b923ebf3e3162ce427ca6feae803Winson Chung private static final int RESCROLL_DELAY = 750; 5461b0c69d3fe331d3de338322396d5de691d58613Winson Chung private static final int VIBRATE_DURATION = 15; 5500acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato 5600acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato private static final boolean PROFILE_DRAWING_DURING_DRAG = false; 5700acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato 5800acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato private static final int SCROLL_OUTSIDE_ZONE = 0; 5900acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato private static final int SCROLL_WAITING_IN_ZONE = 1; 6000acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato 6154fa3b95557c283976e8c1aa8a157b460b0b4513Patrick Dubroy static final int SCROLL_NONE = -1; 621262e369484ce7f2565655ed80e6299232c70bd7Patrick Dubroy static final int SCROLL_LEFT = 0; 631262e369484ce7f2565655ed80e6299232c70bd7Patrick Dubroy static final int SCROLL_RIGHT = 1; 6400acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato 65043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung private static final float MAX_FLING_DEGREES = 35f; 66043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung 678dfcba4af7a7ece09e8c7d96053e54f3a383e905Adam Cohen private Launcher mLauncher; 6800acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato private Handler mHandler; 698ef85c7a01376a98ce64d8fceb423a6f58e60d9dJeff Brown private final Vibrator mVibrator; 7000acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato 7100acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato // temporaries to avoid gc thrash 7200acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato private Rect mRectTemp = new Rect(); 7300acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato private final int[] mCoordinatesTemp = new int[2]; 7400acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato 7500acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato /** Whether or not we're dragging. */ 7600acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato private boolean mDragging; 7700acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato 7800acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato /** X coordinate of the down event. */ 79e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen private int mMotionDownX; 8000acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato 8100acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato /** Y coordinate of the down event. */ 82e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen private int mMotionDownY; 8300acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato 84658db74c24817892f1a379b16620744f38f60e40Joe Onorato /** the area at the edge of the screen that makes the workspace go left 85658db74c24817892f1a379b16620744f38f60e40Joe Onorato * or right while you're dragging. 86658db74c24817892f1a379b16620744f38f60e40Joe Onorato */ 87658db74c24817892f1a379b16620744f38f60e40Joe Onorato private int mScrollZone; 88658db74c24817892f1a379b16620744f38f60e40Joe Onorato 899932a9b1e66fed4b5f38ce50f13d56331bbdcd7eAdam Cohen private DropTarget.DragObject mDragObject; 9000acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato 9100acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato /** Who can receive drop events */ 9200acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato private ArrayList<DropTarget> mDropTargets = new ArrayList<DropTarget>(); 934ed6278e518cc6894cb150b606382e8e6a012599Patrick Dubroy private ArrayList<DragListener> mListeners = new ArrayList<DragListener>(); 94043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung private DropTarget mFlingToDeleteDropTarget; 9500acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato 9600acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato /** The window token used as the parent for the DragView. */ 9700acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato private IBinder mWindowToken; 9800acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato 9900acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato /** The view that will be scrolled when dragging to the left and right edges of the screen. */ 10000acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato private View mScrollView; 10100acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato 102ea3763c2672f77539538af8cdd395ad97058eaabRomain Guy private View mMoveTarget; 103ea3763c2672f77539538af8cdd395ad97058eaabRomain Guy 10400acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato private DragScroller mDragScroller; 10500acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato private int mScrollState = SCROLL_OUTSIDE_ZONE; 10600acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato private ScrollRunnable mScrollRunnable = new ScrollRunnable(); 10700acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato 10800acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato private DropTarget mLastDropTarget; 10900acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato 11000acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato private InputMethodManager mInputMethodManager; 11100acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato 112a16fd5a6bd5371d40a5679261d416f06f8efa022Patrick Dubroy private int mLastTouch[] = new int[2]; 113318eee06ae69ac5ef8fddde984eb2f7601d2101dWinson Chung private long mLastTouchUpTime = -1; 114a16fd5a6bd5371d40a5679261d416f06f8efa022Patrick Dubroy private int mDistanceSinceScroll = 0; 115a16fd5a6bd5371d40a5679261d416f06f8efa022Patrick Dubroy 116273c1022405bcc5e0840450b9195622e7476c9ddWinson Chung private int mTmpPoint[] = new int[2]; 117273c1022405bcc5e0840450b9195622e7476c9ddWinson Chung private Rect mDragLayerRect = new Rect(); 118273c1022405bcc5e0840450b9195622e7476c9ddWinson Chung 119043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung protected int mFlingToDeleteThresholdVelocity; 120043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung private VelocityTracker mVelocityTracker; 121043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung 12231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project /** 12331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project * Interface to receive notifications when a drag starts or stops 12431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project */ 12531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project interface DragListener { 12631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project 12731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project /** 12831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project * A drag has begun 12931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project * 13031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project * @param source An object representing where the drag originated 13131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project * @param info The data associated with the object that is being dragged 13231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project * @param dragAction The drag action: either {@link DragController#DRAG_ACTION_MOVE} 13331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project * or {@link DragController#DRAG_ACTION_COPY} 13431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project */ 1355162ea9b1f41dbebe00fd9ec4d1e15a697971439Joe Onorato void onDragStart(DragSource source, Object info, int dragAction); 13631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project 13731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project /** 138e3193b93ad7bf33e2e45319084a99b9fc986622bWinson Chung * The drag has ended 13931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project */ 14031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project void onDragEnd(); 14131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project } 14231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project 14331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project /** 14400acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato * Used to create a new DragLayer from XML. 14500acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato * 14600acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato * @param context The application's context. 14731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project */ 1488dfcba4af7a7ece09e8c7d96053e54f3a383e905Adam Cohen public DragController(Launcher launcher) { 1496e1bdaf4198f9eb7b4124550d3ad07da2a0226e4Winson Chung Resources r = launcher.getResources(); 1508dfcba4af7a7ece09e8c7d96053e54f3a383e905Adam Cohen mLauncher = launcher; 15100acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato mHandler = new Handler(); 1526e1bdaf4198f9eb7b4124550d3ad07da2a0226e4Winson Chung mScrollZone = r.getDimensionPixelSize(R.dimen.scroll_zone); 153043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung mVelocityTracker = VelocityTracker.obtain(); 1546e1bdaf4198f9eb7b4124550d3ad07da2a0226e4Winson Chung mVibrator = (Vibrator) launcher.getSystemService(Context.VIBRATOR_SERVICE); 155043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung 1566e1bdaf4198f9eb7b4124550d3ad07da2a0226e4Winson Chung float density = r.getDisplayMetrics().density; 1576e1bdaf4198f9eb7b4124550d3ad07da2a0226e4Winson Chung mFlingToDeleteThresholdVelocity = 1586e1bdaf4198f9eb7b4124550d3ad07da2a0226e4Winson Chung (int) (r.getInteger(R.integer.config_flingToDeleteMinVelocity) * density); 15900acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato } 16031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project 1611262e369484ce7f2565655ed80e6299232c70bd7Patrick Dubroy public boolean dragging() { 1621262e369484ce7f2565655ed80e6299232c70bd7Patrick Dubroy return mDragging; 1631262e369484ce7f2565655ed80e6299232c70bd7Patrick Dubroy } 1641262e369484ce7f2565655ed80e6299232c70bd7Patrick Dubroy 16531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project /** 1665162ea9b1f41dbebe00fd9ec4d1e15a697971439Joe Onorato * Starts a drag. 167a63c452f5bd491ba9b28c332ccedc6c6c7e2f3ccMichael Jurka * 16831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project * @param v The view that is being dragged 169e3193b93ad7bf33e2e45319084a99b9fc986622bWinson Chung * @param bmp The bitmap that represents the view being dragged 170e3193b93ad7bf33e2e45319084a99b9fc986622bWinson Chung * @param source An object representing where the drag originated 171e3193b93ad7bf33e2e45319084a99b9fc986622bWinson Chung * @param dragInfo The data associated with the object that is being dragged 172e3193b93ad7bf33e2e45319084a99b9fc986622bWinson Chung * @param dragAction The drag action: either {@link #DRAG_ACTION_MOVE} or 173e3193b93ad7bf33e2e45319084a99b9fc986622bWinson Chung * {@link #DRAG_ACTION_COPY} 174e3193b93ad7bf33e2e45319084a99b9fc986622bWinson Chung * @param dragRegion Coordinates within the bitmap b for the position of item being dragged. 175e3193b93ad7bf33e2e45319084a99b9fc986622bWinson Chung * Makes dragging feel more precise, e.g. you can clip out a transparent border 176e3193b93ad7bf33e2e45319084a99b9fc986622bWinson Chung */ 177e3193b93ad7bf33e2e45319084a99b9fc986622bWinson Chung public void startDrag(View v, Bitmap bmp, DragSource source, Object dragInfo, int dragAction, 17872d598400da7cef9c7fc4f99bb1fcd7ff0710011Winson Chung Rect dragRegion, float initialDragViewScale) { 179e3193b93ad7bf33e2e45319084a99b9fc986622bWinson Chung int[] loc = mCoordinatesTemp; 1808dfcba4af7a7ece09e8c7d96053e54f3a383e905Adam Cohen mLauncher.getDragLayer().getLocationInDragLayer(v, loc); 18172d598400da7cef9c7fc4f99bb1fcd7ff0710011Winson Chung int dragLayerX = loc[0] + v.getPaddingLeft() + 18272d598400da7cef9c7fc4f99bb1fcd7ff0710011Winson Chung (int) ((initialDragViewScale * bmp.getWidth() - bmp.getWidth()) / 2); 18372d598400da7cef9c7fc4f99bb1fcd7ff0710011Winson Chung int dragLayerY = loc[1] + v.getPaddingTop() + 18472d598400da7cef9c7fc4f99bb1fcd7ff0710011Winson Chung (int) ((initialDragViewScale * bmp.getHeight() - bmp.getHeight()) / 2); 185e3193b93ad7bf33e2e45319084a99b9fc986622bWinson Chung 18672d598400da7cef9c7fc4f99bb1fcd7ff0710011Winson Chung startDrag(bmp, dragLayerX, dragLayerY, source, dragInfo, dragAction, null, dragRegion, 18772d598400da7cef9c7fc4f99bb1fcd7ff0710011Winson Chung initialDragViewScale); 188e3193b93ad7bf33e2e45319084a99b9fc986622bWinson Chung 189e3193b93ad7bf33e2e45319084a99b9fc986622bWinson Chung if (dragAction == DRAG_ACTION_MOVE) { 190e3193b93ad7bf33e2e45319084a99b9fc986622bWinson Chung v.setVisibility(View.GONE); 191e3193b93ad7bf33e2e45319084a99b9fc986622bWinson Chung } 192e3193b93ad7bf33e2e45319084a99b9fc986622bWinson Chung } 193e3193b93ad7bf33e2e45319084a99b9fc986622bWinson Chung 194e3193b93ad7bf33e2e45319084a99b9fc986622bWinson Chung /** 195e3193b93ad7bf33e2e45319084a99b9fc986622bWinson Chung * Starts a drag. 196e3193b93ad7bf33e2e45319084a99b9fc986622bWinson Chung * 1975162ea9b1f41dbebe00fd9ec4d1e15a697971439Joe Onorato * @param b The bitmap to display as the drag image. It will be re-scaled to the 1985162ea9b1f41dbebe00fd9ec4d1e15a697971439Joe Onorato * enlarged size. 1998dfcba4af7a7ece09e8c7d96053e54f3a383e905Adam Cohen * @param dragLayerX The x position in the DragLayer of the left-top of the bitmap. 2008dfcba4af7a7ece09e8c7d96053e54f3a383e905Adam Cohen * @param dragLayerY The y position in the DragLayer of the left-top of the bitmap. 2015162ea9b1f41dbebe00fd9ec4d1e15a697971439Joe Onorato * @param source An object representing where the drag originated 202ea3763c2672f77539538af8cdd395ad97058eaabRomain Guy * @param dragInfo The data associated with the object that is being dragged 2035162ea9b1f41dbebe00fd9ec4d1e15a697971439Joe Onorato * @param dragAction The drag action: either {@link #DRAG_ACTION_MOVE} or 2045162ea9b1f41dbebe00fd9ec4d1e15a697971439Joe Onorato * {@link #DRAG_ACTION_COPY} 205a63c452f5bd491ba9b28c332ccedc6c6c7e2f3ccMichael Jurka * @param dragRegion Coordinates within the bitmap b for the position of item being dragged. 206a63c452f5bd491ba9b28c332ccedc6c6c7e2f3ccMichael Jurka * Makes dragging feel more precise, e.g. you can clip out a transparent border 207a63c452f5bd491ba9b28c332ccedc6c6c7e2f3ccMichael Jurka */ 2088dfcba4af7a7ece09e8c7d96053e54f3a383e905Adam Cohen public void startDrag(Bitmap b, int dragLayerX, int dragLayerY, 20972d598400da7cef9c7fc4f99bb1fcd7ff0710011Winson Chung DragSource source, Object dragInfo, int dragAction, Point dragOffset, Rect dragRegion, 21072d598400da7cef9c7fc4f99bb1fcd7ff0710011Winson Chung float initialDragViewScale) { 21100acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato if (PROFILE_DRAWING_DURING_DRAG) { 21200acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato android.os.Debug.startMethodTracing("Launcher"); 21300acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato } 21400acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato 21500acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato // Hide soft keyboard, if visible 21600acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato if (mInputMethodManager == null) { 21700acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato mInputMethodManager = (InputMethodManager) 2188dfcba4af7a7ece09e8c7d96053e54f3a383e905Adam Cohen mLauncher.getSystemService(Context.INPUT_METHOD_SERVICE); 21900acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato } 22000acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato mInputMethodManager.hideSoftInputFromWindow(mWindowToken, 0); 22100acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato 2224ed6278e518cc6894cb150b606382e8e6a012599Patrick Dubroy for (DragListener listener : mListeners) { 2234ed6278e518cc6894cb150b606382e8e6a012599Patrick Dubroy listener.onDragStart(source, dragInfo, dragAction); 22400acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato } 22500acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato 2268dfcba4af7a7ece09e8c7d96053e54f3a383e905Adam Cohen final int registrationX = mMotionDownX - dragLayerX; 2278dfcba4af7a7ece09e8c7d96053e54f3a383e905Adam Cohen final int registrationY = mMotionDownY - dragLayerY; 22800acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato 229a63c452f5bd491ba9b28c332ccedc6c6c7e2f3ccMichael Jurka final int dragRegionLeft = dragRegion == null ? 0 : dragRegion.left; 230a63c452f5bd491ba9b28c332ccedc6c6c7e2f3ccMichael Jurka final int dragRegionTop = dragRegion == null ? 0 : dragRegion.top; 231e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen 23200acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato mDragging = true; 233cb3382b1bfe1a534b1b44f5c4def9b2db605ac90Adam Cohen 2349932a9b1e66fed4b5f38ce50f13d56331bbdcd7eAdam Cohen mDragObject = new DropTarget.DragObject(); 2359932a9b1e66fed4b5f38ce50f13d56331bbdcd7eAdam Cohen 236bfbfd26c627a18f8e1e3e6d0e53e78feab360203Adam Cohen mDragObject.dragComplete = false; 2378dfcba4af7a7ece09e8c7d96053e54f3a383e905Adam Cohen mDragObject.xOffset = mMotionDownX - (dragLayerX + dragRegionLeft); 2388dfcba4af7a7ece09e8c7d96053e54f3a383e905Adam Cohen mDragObject.yOffset = mMotionDownY - (dragLayerY + dragRegionTop); 239cb3382b1bfe1a534b1b44f5c4def9b2db605ac90Adam Cohen mDragObject.dragSource = source; 240cb3382b1bfe1a534b1b44f5c4def9b2db605ac90Adam Cohen mDragObject.dragInfo = dragInfo; 24100acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato 24200acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato mVibrator.vibrate(VIBRATE_DURATION); 24300acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato 2448dfcba4af7a7ece09e8c7d96053e54f3a383e905Adam Cohen final DragView dragView = mDragObject.dragView = new DragView(mLauncher, b, registrationX, 24572d598400da7cef9c7fc4f99bb1fcd7ff0710011Winson Chung registrationY, 0, 0, b.getWidth(), b.getHeight(), initialDragViewScale); 246a63c452f5bd491ba9b28c332ccedc6c6c7e2f3ccMichael Jurka 247b8c69f3c17a40adc2d85e8e996f754c383c293dcWinson Chung if (dragOffset != null) { 248b8c69f3c17a40adc2d85e8e996f754c383c293dcWinson Chung dragView.setDragVisualizeOffset(new Point(dragOffset)); 249b8c69f3c17a40adc2d85e8e996f754c383c293dcWinson Chung } 250a63c452f5bd491ba9b28c332ccedc6c6c7e2f3ccMichael Jurka if (dragRegion != null) { 251e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen dragView.setDragRegion(new Rect(dragRegion)); 252a63c452f5bd491ba9b28c332ccedc6c6c7e2f3ccMichael Jurka } 253a63c452f5bd491ba9b28c332ccedc6c6c7e2f3ccMichael Jurka 2548dfcba4af7a7ece09e8c7d96053e54f3a383e905Adam Cohen dragView.show(mMotionDownX, mMotionDownY); 2558dfcba4af7a7ece09e8c7d96053e54f3a383e905Adam Cohen handleMoveEvent(mMotionDownX, mMotionDownY); 25600acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato } 25700acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato 25800acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato /** 25900acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato * Draw the view into a bitmap. 26000acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato */ 261120980bd00f5eecec5717f49a3d7db96571025a9Adam Cohen Bitmap getViewBitmap(View v) { 26200acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato v.clearFocus(); 26300acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato v.setPressed(false); 26400acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato 26500acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato boolean willNotCache = v.willNotCacheDrawing(); 26600acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato v.setWillNotCacheDrawing(false); 26700acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato 26800acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato // Reset the drawing cache background color to fully transparent 26900acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato // for the duration of this operation 27000acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato int color = v.getDrawingCacheBackgroundColor(); 27100acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato v.setDrawingCacheBackgroundColor(0); 272120980bd00f5eecec5717f49a3d7db96571025a9Adam Cohen float alpha = v.getAlpha(); 273120980bd00f5eecec5717f49a3d7db96571025a9Adam Cohen v.setAlpha(1.0f); 27400acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato 27500acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato if (color != 0) { 27600acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato v.destroyDrawingCache(); 27700acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato } 27800acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato v.buildDrawingCache(); 27900acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato Bitmap cacheBitmap = v.getDrawingCache(); 2803f8175a86e24b3568d1f5b12e1d3d5efcc57d691Daniel Sandler if (cacheBitmap == null) { 2813f8175a86e24b3568d1f5b12e1d3d5efcc57d691Daniel Sandler Log.e(TAG, "failed getViewBitmap(" + v + ")", new RuntimeException()); 2823f8175a86e24b3568d1f5b12e1d3d5efcc57d691Daniel Sandler return null; 2833f8175a86e24b3568d1f5b12e1d3d5efcc57d691Daniel Sandler } 28400acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato 28500acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato Bitmap bitmap = Bitmap.createBitmap(cacheBitmap); 28600acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato 28700acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato // Restore the view 28800acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato v.destroyDrawingCache(); 289120980bd00f5eecec5717f49a3d7db96571025a9Adam Cohen v.setAlpha(alpha); 29000acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato v.setWillNotCacheDrawing(willNotCache); 29100acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato v.setDrawingCacheBackgroundColor(color); 29200acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato 29300acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato return bitmap; 29400acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato } 29500acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato 29600acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato /** 29700acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato * Call this from a drag source view like this: 29800acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato * 29900acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato * <pre> 30000acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato * @Override 30100acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato * public boolean dispatchKeyEvent(KeyEvent event) { 30200acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato * return mDragController.dispatchKeyEvent(this, event) 30300acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato * || super.dispatchKeyEvent(event); 30400acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato * </pre> 30500acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato */ 30600acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato public boolean dispatchKeyEvent(KeyEvent event) { 30700acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato return mDragging; 30800acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato } 30900acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato 310304dcde0e301c2f1a0b2bdc80ea8617930691b6eWinson Chung public boolean isDragging() { 311304dcde0e301c2f1a0b2bdc80ea8617930691b6eWinson Chung return mDragging; 312304dcde0e301c2f1a0b2bdc80ea8617930691b6eWinson Chung } 313304dcde0e301c2f1a0b2bdc80ea8617930691b6eWinson Chung 31424b6fd854f75f21700a330c2f0d11938e5dfeab6Joe Onorato /** 31524b6fd854f75f21700a330c2f0d11938e5dfeab6Joe Onorato * Stop dragging without dropping. 31624b6fd854f75f21700a330c2f0d11938e5dfeab6Joe Onorato */ 31724b6fd854f75f21700a330c2f0d11938e5dfeab6Joe Onorato public void cancelDrag() { 318621e6406fadba27d6cff1c38b31d5cdf99c0f97aWinson Chung if (mDragging) { 319c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung if (mLastDropTarget != null) { 320c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung mLastDropTarget.onDragExit(mDragObject); 321c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung } 32241bb19d2775836e30ebf42f681b4617bc71600aaWinson Chung mDragObject.deferDragViewCleanupPostAnimation = false; 32336cc09b07b19198f4ea886583cef462ade27192cAdam Cohen mDragObject.cancelled = true; 324bfbfd26c627a18f8e1e3e6d0e53e78feab360203Adam Cohen mDragObject.dragComplete = true; 325a48487a814c07a9f1f45eb3ffe3d873b3dc31b3bWinson Chung mDragObject.dragSource.onDropCompleted(null, mDragObject, false, false); 326621e6406fadba27d6cff1c38b31d5cdf99c0f97aWinson Chung } 32724b6fd854f75f21700a330c2f0d11938e5dfeab6Joe Onorato endDrag(); 32824b6fd854f75f21700a330c2f0d11938e5dfeab6Joe Onorato } 329cd81073eac537e9f85eeee14588d513ea8a56e17Winson Chung public void onAppsRemoved(ArrayList<String> packageNames, Context context) { 330a182096cb20e0580dfca6661b2e5871c8886c834Winson Chung // Cancel the current drag if we are removing an app that we are dragging 331a182096cb20e0580dfca6661b2e5871c8886c834Winson Chung if (mDragObject != null) { 332a182096cb20e0580dfca6661b2e5871c8886c834Winson Chung Object rawDragInfo = mDragObject.dragInfo; 333a182096cb20e0580dfca6661b2e5871c8886c834Winson Chung if (rawDragInfo instanceof ShortcutInfo) { 334a182096cb20e0580dfca6661b2e5871c8886c834Winson Chung ShortcutInfo dragInfo = (ShortcutInfo) rawDragInfo; 335cd81073eac537e9f85eeee14588d513ea8a56e17Winson Chung for (String pn : packageNames) { 3367bcadad93f97e79d95ae879fe165de2e2371f613Michael Jurka // Added null checks to prevent NPE we've seen in the wild 3377bcadad93f97e79d95ae879fe165de2e2371f613Michael Jurka if (dragInfo != null && 338cd81073eac537e9f85eeee14588d513ea8a56e17Winson Chung dragInfo.intent != null) { 339cd81073eac537e9f85eeee14588d513ea8a56e17Winson Chung boolean isSamePackage = dragInfo.getPackageName().equals(pn); 34011a4937fbff0dbc50fb022513dc3b6c643154445Winson Chung if (isSamePackage) { 34111a4937fbff0dbc50fb022513dc3b6c643154445Winson Chung cancelDrag(); 34211a4937fbff0dbc50fb022513dc3b6c643154445Winson Chung return; 34311a4937fbff0dbc50fb022513dc3b6c643154445Winson Chung } 344a182096cb20e0580dfca6661b2e5871c8886c834Winson Chung } 345a182096cb20e0580dfca6661b2e5871c8886c834Winson Chung } 346a182096cb20e0580dfca6661b2e5871c8886c834Winson Chung } 347a182096cb20e0580dfca6661b2e5871c8886c834Winson Chung } 348a182096cb20e0580dfca6661b2e5871c8886c834Winson Chung } 34924b6fd854f75f21700a330c2f0d11938e5dfeab6Joe Onorato 35000acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato private void endDrag() { 35100acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato if (mDragging) { 35200acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato mDragging = false; 353aa15ffe60e28b923ebf3e3162ce427ca6feae803Winson Chung clearScrollRunnable(); 354043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung boolean isDeferred = false; 355cb3382b1bfe1a534b1b44f5c4def9b2db605ac90Adam Cohen if (mDragObject.dragView != null) { 356043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung isDeferred = mDragObject.deferDragViewCleanupPostAnimation; 357043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung if (!isDeferred) { 3587bd1bbb509f9569fa18d6b4d33242679fd98bc9bWinson Chung mDragObject.dragView.remove(); 3597bd1bbb509f9569fa18d6b4d33242679fd98bc9bWinson Chung } 360cb3382b1bfe1a534b1b44f5c4def9b2db605ac90Adam Cohen mDragObject.dragView = null; 36100acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato } 362043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung 363043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung // Only end the drag if we are not deferred 364043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung if (!isDeferred) { 365043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung for (DragListener listener : mListeners) { 366043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung listener.onDragEnd(); 367043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung } 368043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung } 369043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung } 370043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung 371043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung releaseVelocityTracker(); 372043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung } 373043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung 374043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung /** 375043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung * This only gets called as a result of drag view cleanup being deferred in endDrag(); 376043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung */ 377043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung void onDeferredEndDrag(DragView dragView) { 378043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung dragView.remove(); 379043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung 380043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung // If we skipped calling onDragEnd() before, do it now 381043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung for (DragListener listener : mListeners) { 382043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung listener.onDragEnd(); 38300acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato } 38400acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato } 38500acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato 386a48487a814c07a9f1f45eb3ffe3d873b3dc31b3bWinson Chung void onDeferredEndFling(DropTarget.DragObject d) { 387a48487a814c07a9f1f45eb3ffe3d873b3dc31b3bWinson Chung d.dragSource.onFlingToDeleteCompleted(); 388a48487a814c07a9f1f45eb3ffe3d873b3dc31b3bWinson Chung } 389a48487a814c07a9f1f45eb3ffe3d873b3dc31b3bWinson Chung 39000acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato /** 391273c1022405bcc5e0840450b9195622e7476c9ddWinson Chung * Clamps the position to the drag layer bounds. 392273c1022405bcc5e0840450b9195622e7476c9ddWinson Chung */ 393273c1022405bcc5e0840450b9195622e7476c9ddWinson Chung private int[] getClampedDragLayerPos(float x, float y) { 394273c1022405bcc5e0840450b9195622e7476c9ddWinson Chung mLauncher.getDragLayer().getLocalVisibleRect(mDragLayerRect); 395273c1022405bcc5e0840450b9195622e7476c9ddWinson Chung mTmpPoint[0] = (int) Math.max(mDragLayerRect.left, Math.min(x, mDragLayerRect.right - 1)); 396273c1022405bcc5e0840450b9195622e7476c9ddWinson Chung mTmpPoint[1] = (int) Math.max(mDragLayerRect.top, Math.min(y, mDragLayerRect.bottom - 1)); 397273c1022405bcc5e0840450b9195622e7476c9ddWinson Chung return mTmpPoint; 398273c1022405bcc5e0840450b9195622e7476c9ddWinson Chung } 399273c1022405bcc5e0840450b9195622e7476c9ddWinson Chung 400a2413751e3a698aef9c87411a639637883856939Winson Chung long getLastGestureUpTime() { 401a2413751e3a698aef9c87411a639637883856939Winson Chung if (mDragging) { 402a2413751e3a698aef9c87411a639637883856939Winson Chung return System.currentTimeMillis(); 403a2413751e3a698aef9c87411a639637883856939Winson Chung } else { 404a2413751e3a698aef9c87411a639637883856939Winson Chung return mLastTouchUpTime; 405a2413751e3a698aef9c87411a639637883856939Winson Chung } 406a2413751e3a698aef9c87411a639637883856939Winson Chung } 407a2413751e3a698aef9c87411a639637883856939Winson Chung 408a2413751e3a698aef9c87411a639637883856939Winson Chung void resetLastGestureUpTime() { 409a2413751e3a698aef9c87411a639637883856939Winson Chung mLastTouchUpTime = -1; 410a2413751e3a698aef9c87411a639637883856939Winson Chung } 411a2413751e3a698aef9c87411a639637883856939Winson Chung 412273c1022405bcc5e0840450b9195622e7476c9ddWinson Chung /** 41300acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato * Call this from a drag source view. 41400acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato */ 41500acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato public boolean onInterceptTouchEvent(MotionEvent ev) { 4163a9fcedbcd235372cd2ab64f825a0b5b3937f59eMichael Jurka @SuppressWarnings("all") // suppress dead code warning 4173a9fcedbcd235372cd2ab64f825a0b5b3937f59eMichael Jurka final boolean debug = false; 4183a9fcedbcd235372cd2ab64f825a0b5b3937f59eMichael Jurka if (debug) { 419a30ce8e6b25e41f392a41fd4d0d3e0a424a84dadJoe Onorato Log.d(Launcher.TAG, "DragController.onInterceptTouchEvent " + ev + " mDragging=" 4209c1289cb3bfb74f86e53ec7ac6dd76bb39666b2dJoe Onorato + mDragging); 4219c1289cb3bfb74f86e53ec7ac6dd76bb39666b2dJoe Onorato } 42200acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato 423043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung // Update the velocity tracker 424043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung acquireVelocityTrackerAndAddMovement(ev); 425043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung 426043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung final int action = ev.getAction(); 427273c1022405bcc5e0840450b9195622e7476c9ddWinson Chung final int[] dragLayerPos = getClampedDragLayerPos(ev.getX(), ev.getY()); 428273c1022405bcc5e0840450b9195622e7476c9ddWinson Chung final int dragLayerX = dragLayerPos[0]; 429273c1022405bcc5e0840450b9195622e7476c9ddWinson Chung final int dragLayerY = dragLayerPos[1]; 43000acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato 43100acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato switch (action) { 43200acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato case MotionEvent.ACTION_MOVE: 43300acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato break; 43400acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato case MotionEvent.ACTION_DOWN: 43500acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato // Remember location of down touch 4368dfcba4af7a7ece09e8c7d96053e54f3a383e905Adam Cohen mMotionDownX = dragLayerX; 4378dfcba4af7a7ece09e8c7d96053e54f3a383e905Adam Cohen mMotionDownY = dragLayerY; 43800acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato mLastDropTarget = null; 43900acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato break; 44000acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato case MotionEvent.ACTION_UP: 441a2413751e3a698aef9c87411a639637883856939Winson Chung mLastTouchUpTime = System.currentTimeMillis(); 44200acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato if (mDragging) { 443043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung PointF vec = isFlingingToDelete(mDragObject.dragSource); 444043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung if (vec != null) { 445043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung dropOnFlingToDeleteTarget(dragLayerX, dragLayerY, vec); 446043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung } else { 447043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung drop(dragLayerX, dragLayerY); 448043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung } 44900acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato } 45000acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato endDrag(); 45100acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato break; 452621e6406fadba27d6cff1c38b31d5cdf99c0f97aWinson Chung case MotionEvent.ACTION_CANCEL: 453621e6406fadba27d6cff1c38b31d5cdf99c0f97aWinson Chung cancelDrag(); 454621e6406fadba27d6cff1c38b31d5cdf99c0f97aWinson Chung break; 45500acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato } 45600acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato 45700acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato return mDragging; 45800acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato } 45900acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato 46000acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato /** 461ea3763c2672f77539538af8cdd395ad97058eaabRomain Guy * Sets the view that should handle move events. 462ea3763c2672f77539538af8cdd395ad97058eaabRomain Guy */ 463ea3763c2672f77539538af8cdd395ad97058eaabRomain Guy void setMoveTarget(View view) { 464ea3763c2672f77539538af8cdd395ad97058eaabRomain Guy mMoveTarget = view; 465ea3763c2672f77539538af8cdd395ad97058eaabRomain Guy } 466ea3763c2672f77539538af8cdd395ad97058eaabRomain Guy 467ea3763c2672f77539538af8cdd395ad97058eaabRomain Guy public boolean dispatchUnhandledMove(View focused, int direction) { 468ea3763c2672f77539538af8cdd395ad97058eaabRomain Guy return mMoveTarget != null && mMoveTarget.dispatchUnhandledMove(focused, direction); 469ea3763c2672f77539538af8cdd395ad97058eaabRomain Guy } 470ea3763c2672f77539538af8cdd395ad97058eaabRomain Guy 471aa15ffe60e28b923ebf3e3162ce427ca6feae803Winson Chung private void clearScrollRunnable() { 472aa15ffe60e28b923ebf3e3162ce427ca6feae803Winson Chung mHandler.removeCallbacks(mScrollRunnable); 473aa15ffe60e28b923ebf3e3162ce427ca6feae803Winson Chung if (mScrollState == SCROLL_WAITING_IN_ZONE) { 474aa15ffe60e28b923ebf3e3162ce427ca6feae803Winson Chung mScrollState = SCROLL_OUTSIDE_ZONE; 475aa15ffe60e28b923ebf3e3162ce427ca6feae803Winson Chung mScrollRunnable.setDirection(SCROLL_RIGHT); 476aa15ffe60e28b923ebf3e3162ce427ca6feae803Winson Chung mDragScroller.onExitScrollArea(); 477360e63fd3e77247002b86da2a77bd8dfe8c8a807Winson Chung mLauncher.getDragLayer().onExitScrollArea(); 478aa15ffe60e28b923ebf3e3162ce427ca6feae803Winson Chung } 479aa15ffe60e28b923ebf3e3162ce427ca6feae803Winson Chung } 480aa15ffe60e28b923ebf3e3162ce427ca6feae803Winson Chung 481de7658b5e02ae10010e44fcf8d9c5814f54d9eb0Patrick Dubroy private void handleMoveEvent(int x, int y) { 482cb3382b1bfe1a534b1b44f5c4def9b2db605ac90Adam Cohen mDragObject.dragView.move(x, y); 483de7658b5e02ae10010e44fcf8d9c5814f54d9eb0Patrick Dubroy 484de7658b5e02ae10010e44fcf8d9c5814f54d9eb0Patrick Dubroy // Drop on someone? 485de7658b5e02ae10010e44fcf8d9c5814f54d9eb0Patrick Dubroy final int[] coordinates = mCoordinatesTemp; 486de7658b5e02ae10010e44fcf8d9c5814f54d9eb0Patrick Dubroy DropTarget dropTarget = findDropTarget(x, y, coordinates); 487cb3382b1bfe1a534b1b44f5c4def9b2db605ac90Adam Cohen mDragObject.x = coordinates[0]; 488cb3382b1bfe1a534b1b44f5c4def9b2db605ac90Adam Cohen mDragObject.y = coordinates[1]; 489de7658b5e02ae10010e44fcf8d9c5814f54d9eb0Patrick Dubroy if (dropTarget != null) { 490cb3382b1bfe1a534b1b44f5c4def9b2db605ac90Adam Cohen DropTarget delegate = dropTarget.getDropTargetDelegate(mDragObject); 491de7658b5e02ae10010e44fcf8d9c5814f54d9eb0Patrick Dubroy if (delegate != null) { 492de7658b5e02ae10010e44fcf8d9c5814f54d9eb0Patrick Dubroy dropTarget = delegate; 493de7658b5e02ae10010e44fcf8d9c5814f54d9eb0Patrick Dubroy } 494de7658b5e02ae10010e44fcf8d9c5814f54d9eb0Patrick Dubroy 495de7658b5e02ae10010e44fcf8d9c5814f54d9eb0Patrick Dubroy if (mLastDropTarget != dropTarget) { 496de7658b5e02ae10010e44fcf8d9c5814f54d9eb0Patrick Dubroy if (mLastDropTarget != null) { 497cb3382b1bfe1a534b1b44f5c4def9b2db605ac90Adam Cohen mLastDropTarget.onDragExit(mDragObject); 498de7658b5e02ae10010e44fcf8d9c5814f54d9eb0Patrick Dubroy } 499cb3382b1bfe1a534b1b44f5c4def9b2db605ac90Adam Cohen dropTarget.onDragEnter(mDragObject); 500de7658b5e02ae10010e44fcf8d9c5814f54d9eb0Patrick Dubroy } 501cb3382b1bfe1a534b1b44f5c4def9b2db605ac90Adam Cohen dropTarget.onDragOver(mDragObject); 502de7658b5e02ae10010e44fcf8d9c5814f54d9eb0Patrick Dubroy } else { 503de7658b5e02ae10010e44fcf8d9c5814f54d9eb0Patrick Dubroy if (mLastDropTarget != null) { 504cb3382b1bfe1a534b1b44f5c4def9b2db605ac90Adam Cohen mLastDropTarget.onDragExit(mDragObject); 505de7658b5e02ae10010e44fcf8d9c5814f54d9eb0Patrick Dubroy } 506de7658b5e02ae10010e44fcf8d9c5814f54d9eb0Patrick Dubroy } 507de7658b5e02ae10010e44fcf8d9c5814f54d9eb0Patrick Dubroy mLastDropTarget = dropTarget; 508de7658b5e02ae10010e44fcf8d9c5814f54d9eb0Patrick Dubroy 509a16fd5a6bd5371d40a5679261d416f06f8efa022Patrick Dubroy // After a scroll, the touch point will still be in the scroll region. 510a16fd5a6bd5371d40a5679261d416f06f8efa022Patrick Dubroy // Rather than scrolling immediately, require a bit of twiddling to scroll again 5118dfcba4af7a7ece09e8c7d96053e54f3a383e905Adam Cohen final int slop = ViewConfiguration.get(mLauncher).getScaledWindowTouchSlop(); 512a16fd5a6bd5371d40a5679261d416f06f8efa022Patrick Dubroy mDistanceSinceScroll += 513a16fd5a6bd5371d40a5679261d416f06f8efa022Patrick Dubroy Math.sqrt(Math.pow(mLastTouch[0] - x, 2) + Math.pow(mLastTouch[1] - y, 2)); 514a16fd5a6bd5371d40a5679261d416f06f8efa022Patrick Dubroy mLastTouch[0] = x; 515a16fd5a6bd5371d40a5679261d416f06f8efa022Patrick Dubroy mLastTouch[1] = y; 516aa15ffe60e28b923ebf3e3162ce427ca6feae803Winson Chung final int delay = mDistanceSinceScroll < slop ? RESCROLL_DELAY : SCROLL_DELAY; 517a16fd5a6bd5371d40a5679261d416f06f8efa022Patrick Dubroy 5183f4e1423804d64a38cb69e4511d7b80783564827Winson Chung if (x < mScrollZone) { 519aa15ffe60e28b923ebf3e3162ce427ca6feae803Winson Chung if (mScrollState == SCROLL_OUTSIDE_ZONE) { 520de7658b5e02ae10010e44fcf8d9c5814f54d9eb0Patrick Dubroy mScrollState = SCROLL_WAITING_IN_ZONE; 5213e0839e5f830ab7e64223ebe186d97729eda3e22Winson Chung if (mDragScroller.onEnterScrollArea(x, y, SCROLL_LEFT)) { 522360e63fd3e77247002b86da2a77bd8dfe8c8a807Winson Chung mLauncher.getDragLayer().onEnterScrollArea(SCROLL_LEFT); 5233e0839e5f830ab7e64223ebe186d97729eda3e22Winson Chung mScrollRunnable.setDirection(SCROLL_LEFT); 524aa15ffe60e28b923ebf3e3162ce427ca6feae803Winson Chung mHandler.postDelayed(mScrollRunnable, delay); 5253e0839e5f830ab7e64223ebe186d97729eda3e22Winson Chung } 526de7658b5e02ae10010e44fcf8d9c5814f54d9eb0Patrick Dubroy } 5273f4e1423804d64a38cb69e4511d7b80783564827Winson Chung } else if (x > mScrollView.getWidth() - mScrollZone) { 528aa15ffe60e28b923ebf3e3162ce427ca6feae803Winson Chung if (mScrollState == SCROLL_OUTSIDE_ZONE) { 529de7658b5e02ae10010e44fcf8d9c5814f54d9eb0Patrick Dubroy mScrollState = SCROLL_WAITING_IN_ZONE; 5303e0839e5f830ab7e64223ebe186d97729eda3e22Winson Chung if (mDragScroller.onEnterScrollArea(x, y, SCROLL_RIGHT)) { 531360e63fd3e77247002b86da2a77bd8dfe8c8a807Winson Chung mLauncher.getDragLayer().onEnterScrollArea(SCROLL_RIGHT); 5323e0839e5f830ab7e64223ebe186d97729eda3e22Winson Chung mScrollRunnable.setDirection(SCROLL_RIGHT); 533aa15ffe60e28b923ebf3e3162ce427ca6feae803Winson Chung mHandler.postDelayed(mScrollRunnable, delay); 5343e0839e5f830ab7e64223ebe186d97729eda3e22Winson Chung } 535de7658b5e02ae10010e44fcf8d9c5814f54d9eb0Patrick Dubroy } 536de7658b5e02ae10010e44fcf8d9c5814f54d9eb0Patrick Dubroy } else { 537aa15ffe60e28b923ebf3e3162ce427ca6feae803Winson Chung clearScrollRunnable(); 538de7658b5e02ae10010e44fcf8d9c5814f54d9eb0Patrick Dubroy } 539de7658b5e02ae10010e44fcf8d9c5814f54d9eb0Patrick Dubroy } 540de7658b5e02ae10010e44fcf8d9c5814f54d9eb0Patrick Dubroy 5413bc21c35fa167ac233e19df0c9a01b0a07173ed8Winson Chung public void forceMoveEvent() { 5423bc21c35fa167ac233e19df0c9a01b0a07173ed8Winson Chung if (mDragging) { 5433bc21c35fa167ac233e19df0c9a01b0a07173ed8Winson Chung handleMoveEvent(mDragObject.x, mDragObject.y); 5443bc21c35fa167ac233e19df0c9a01b0a07173ed8Winson Chung } 5453bc21c35fa167ac233e19df0c9a01b0a07173ed8Winson Chung } 5463bc21c35fa167ac233e19df0c9a01b0a07173ed8Winson Chung 547ea3763c2672f77539538af8cdd395ad97058eaabRomain Guy /** 54800acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato * Call this from a drag source view. 54900acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato */ 55000acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato public boolean onTouchEvent(MotionEvent ev) { 55100acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato if (!mDragging) { 55200acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato return false; 55300acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato } 55400acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato 555043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung // Update the velocity tracker 556043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung acquireVelocityTrackerAndAddMovement(ev); 557043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung 55800acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato final int action = ev.getAction(); 559273c1022405bcc5e0840450b9195622e7476c9ddWinson Chung final int[] dragLayerPos = getClampedDragLayerPos(ev.getX(), ev.getY()); 560273c1022405bcc5e0840450b9195622e7476c9ddWinson Chung final int dragLayerX = dragLayerPos[0]; 561273c1022405bcc5e0840450b9195622e7476c9ddWinson Chung final int dragLayerY = dragLayerPos[1]; 56200acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato 56300acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato switch (action) { 56400acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato case MotionEvent.ACTION_DOWN: 56500acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato // Remember where the motion event started 5668dfcba4af7a7ece09e8c7d96053e54f3a383e905Adam Cohen mMotionDownX = dragLayerX; 5678dfcba4af7a7ece09e8c7d96053e54f3a383e905Adam Cohen mMotionDownY = dragLayerY; 56800acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato 5698dfcba4af7a7ece09e8c7d96053e54f3a383e905Adam Cohen if ((dragLayerX < mScrollZone) || (dragLayerX > mScrollView.getWidth() - mScrollZone)) { 57000acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato mScrollState = SCROLL_WAITING_IN_ZONE; 57100acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato mHandler.postDelayed(mScrollRunnable, SCROLL_DELAY); 57200acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato } else { 57300acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato mScrollState = SCROLL_OUTSIDE_ZONE; 57400acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato } 57500acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato break; 57600acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato case MotionEvent.ACTION_MOVE: 5778dfcba4af7a7ece09e8c7d96053e54f3a383e905Adam Cohen handleMoveEvent(dragLayerX, dragLayerY); 57800acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato break; 57900acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato case MotionEvent.ACTION_UP: 580b0a6bbeeab0960419dcd1f695c209ca0ec36ab8aPatrick Dubroy // Ensure that we've processed a move event at the current pointer location. 5818dfcba4af7a7ece09e8c7d96053e54f3a383e905Adam Cohen handleMoveEvent(dragLayerX, dragLayerY); 5823bc21c35fa167ac233e19df0c9a01b0a07173ed8Winson Chung mHandler.removeCallbacks(mScrollRunnable); 583043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung 58400acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato if (mDragging) { 585043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung PointF vec = isFlingingToDelete(mDragObject.dragSource); 586043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung if (vec != null) { 587043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung dropOnFlingToDeleteTarget(dragLayerX, dragLayerY, vec); 588043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung } else { 589043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung drop(dragLayerX, dragLayerY); 590043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung } 59100acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato } 59200acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato endDrag(); 59300acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato break; 59400acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato case MotionEvent.ACTION_CANCEL: 5953bc21c35fa167ac233e19df0c9a01b0a07173ed8Winson Chung mHandler.removeCallbacks(mScrollRunnable); 59624b6fd854f75f21700a330c2f0d11938e5dfeab6Joe Onorato cancelDrag(); 597621e6406fadba27d6cff1c38b31d5cdf99c0f97aWinson Chung break; 59800acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato } 59900acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato 60000acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato return true; 60100acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato } 60200acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato 603043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung /** 604043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung * Determines whether the user flung the current item to delete it. 605043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung * 606043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung * @return the vector at which the item was flung, or null if no fling was detected. 607043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung */ 608043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung private PointF isFlingingToDelete(DragSource source) { 609043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung if (mFlingToDeleteDropTarget == null) return null; 610043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung if (!source.supportsFlingToDelete()) return null; 611043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung 612043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung ViewConfiguration config = ViewConfiguration.get(mLauncher); 613043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung mVelocityTracker.computeCurrentVelocity(1000, config.getScaledMaximumFlingVelocity()); 614043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung 615043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung if (mVelocityTracker.getYVelocity() < mFlingToDeleteThresholdVelocity) { 616043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung // Do a quick dot product test to ensure that we are flinging upwards 617043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung PointF vel = new PointF(mVelocityTracker.getXVelocity(), 618043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung mVelocityTracker.getYVelocity()); 619043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung PointF upVec = new PointF(0f, -1f); 620043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung float theta = (float) Math.acos(((vel.x * upVec.x) + (vel.y * upVec.y)) / 621043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung (vel.length() * upVec.length())); 622043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung if (theta <= Math.toRadians(MAX_FLING_DEGREES)) { 623043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung return vel; 624043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung } 625043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung } 626043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung return null; 627043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung } 628043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung 629043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung private void dropOnFlingToDeleteTarget(float x, float y, PointF vel) { 630043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung final int[] coordinates = mCoordinatesTemp; 631043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung 632043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung mDragObject.x = coordinates[0]; 633043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung mDragObject.y = coordinates[1]; 634043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung 635043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung // Clean up dragging on the target if it's not the current fling delete target otherwise, 636043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung // start dragging to it. 637043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung if (mLastDropTarget != null && mFlingToDeleteDropTarget != mLastDropTarget) { 638043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung mLastDropTarget.onDragExit(mDragObject); 639043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung } 640043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung 641043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung // Drop onto the fling-to-delete target 642043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung boolean accepted = false; 643043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung mFlingToDeleteDropTarget.onDragEnter(mDragObject); 644232decb008661d82ed2ca6d5f3080ee5a50d3be1Winson Chung // We must set dragComplete to true _only_ after we "enter" the fling-to-delete target for 645232decb008661d82ed2ca6d5f3080ee5a50d3be1Winson Chung // "drop" 646232decb008661d82ed2ca6d5f3080ee5a50d3be1Winson Chung mDragObject.dragComplete = true; 647043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung mFlingToDeleteDropTarget.onDragExit(mDragObject); 648043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung if (mFlingToDeleteDropTarget.acceptDrop(mDragObject)) { 649043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung mFlingToDeleteDropTarget.onFlingToDelete(mDragObject, mDragObject.x, mDragObject.y, 650043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung vel); 651043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung accepted = true; 652043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung } 653a48487a814c07a9f1f45eb3ffe3d873b3dc31b3bWinson Chung mDragObject.dragSource.onDropCompleted((View) mFlingToDeleteDropTarget, mDragObject, true, 654043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung accepted); 655043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung } 656043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung 657b0a6bbeeab0960419dcd1f695c209ca0ec36ab8aPatrick Dubroy private void drop(float x, float y) { 65800acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato final int[] coordinates = mCoordinatesTemp; 659b0a6bbeeab0960419dcd1f695c209ca0ec36ab8aPatrick Dubroy final DropTarget dropTarget = findDropTarget((int) x, (int) y, coordinates); 66000acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato 661cb3382b1bfe1a534b1b44f5c4def9b2db605ac90Adam Cohen mDragObject.x = coordinates[0]; 662cb3382b1bfe1a534b1b44f5c4def9b2db605ac90Adam Cohen mDragObject.y = coordinates[1]; 663b0a6bbeeab0960419dcd1f695c209ca0ec36ab8aPatrick Dubroy boolean accepted = false; 66400acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato if (dropTarget != null) { 665bfbfd26c627a18f8e1e3e6d0e53e78feab360203Adam Cohen mDragObject.dragComplete = true; 666cb3382b1bfe1a534b1b44f5c4def9b2db605ac90Adam Cohen dropTarget.onDragExit(mDragObject); 667cb3382b1bfe1a534b1b44f5c4def9b2db605ac90Adam Cohen if (dropTarget.acceptDrop(mDragObject)) { 668cb3382b1bfe1a534b1b44f5c4def9b2db605ac90Adam Cohen dropTarget.onDrop(mDragObject); 669b0a6bbeeab0960419dcd1f695c209ca0ec36ab8aPatrick Dubroy accepted = true; 67000acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato } 67100acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato } 672a48487a814c07a9f1f45eb3ffe3d873b3dc31b3bWinson Chung mDragObject.dragSource.onDropCompleted((View) dropTarget, mDragObject, false, accepted); 67300acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato } 67400acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato 67500acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato private DropTarget findDropTarget(int x, int y, int[] dropCoordinates) { 67600acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato final Rect r = mRectTemp; 67700acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato 67800acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato final ArrayList<DropTarget> dropTargets = mDropTargets; 67900acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato final int count = dropTargets.size(); 68000acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato for (int i=count-1; i>=0; i--) { 681440c360bc395c43683fa9ca226e59f9e35f9e926Patrick Dubroy DropTarget target = dropTargets.get(i); 6820280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka if (!target.isDropEnabled()) 6830280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka continue; 6840280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka 68500acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato target.getHitRect(r); 686440c360bc395c43683fa9ca226e59f9e35f9e926Patrick Dubroy 6878dfcba4af7a7ece09e8c7d96053e54f3a383e905Adam Cohen // Convert the hit rect to DragLayer coordinates 6888dfcba4af7a7ece09e8c7d96053e54f3a383e905Adam Cohen target.getLocationInDragLayer(dropCoordinates); 68900acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato r.offset(dropCoordinates[0] - target.getLeft(), dropCoordinates[1] - target.getTop()); 690440c360bc395c43683fa9ca226e59f9e35f9e926Patrick Dubroy 691cb3382b1bfe1a534b1b44f5c4def9b2db605ac90Adam Cohen mDragObject.x = x; 692cb3382b1bfe1a534b1b44f5c4def9b2db605ac90Adam Cohen mDragObject.y = y; 69300acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato if (r.contains(x, y)) { 694cb3382b1bfe1a534b1b44f5c4def9b2db605ac90Adam Cohen DropTarget delegate = target.getDropTargetDelegate(mDragObject); 695440c360bc395c43683fa9ca226e59f9e35f9e926Patrick Dubroy if (delegate != null) { 696440c360bc395c43683fa9ca226e59f9e35f9e926Patrick Dubroy target = delegate; 6978dfcba4af7a7ece09e8c7d96053e54f3a383e905Adam Cohen target.getLocationInDragLayer(dropCoordinates); 698440c360bc395c43683fa9ca226e59f9e35f9e926Patrick Dubroy } 699440c360bc395c43683fa9ca226e59f9e35f9e926Patrick Dubroy 700440c360bc395c43683fa9ca226e59f9e35f9e926Patrick Dubroy // Make dropCoordinates relative to the DropTarget 70100acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato dropCoordinates[0] = x - dropCoordinates[0]; 70200acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato dropCoordinates[1] = y - dropCoordinates[1]; 703440c360bc395c43683fa9ca226e59f9e35f9e926Patrick Dubroy 70400acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato return target; 70500acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato } 70600acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato } 70700acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato return null; 70800acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato } 70900acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato 71000acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato public void setDragScoller(DragScroller scroller) { 71100acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato mDragScroller = scroller; 71200acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato } 71300acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato 71400acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato public void setWindowToken(IBinder token) { 71500acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato mWindowToken = token; 71600acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato } 71700acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato 71831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project /** 71931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project * Sets the drag listner which will be notified when a drag starts or ends. 72031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project */ 7214ed6278e518cc6894cb150b606382e8e6a012599Patrick Dubroy public void addDragListener(DragListener l) { 7224ed6278e518cc6894cb150b606382e8e6a012599Patrick Dubroy mListeners.add(l); 72300acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato } 72400acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato 72531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project /** 72631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project * Remove a previously installed drag listener. 72731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project */ 72800acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato public void removeDragListener(DragListener l) { 7294ed6278e518cc6894cb150b606382e8e6a012599Patrick Dubroy mListeners.remove(l); 73000acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato } 73100acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato 73200acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato /** 73300acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato * Add a DropTarget to the list of potential places to receive drop events. 73400acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato */ 73500acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato public void addDropTarget(DropTarget target) { 73600acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato mDropTargets.add(target); 73700acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato } 73800acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato 73900acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato /** 74000acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato * Don't send drop events to <em>target</em> any more. 74100acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato */ 74200acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato public void removeDropTarget(DropTarget target) { 74300acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato mDropTargets.remove(target); 74400acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato } 74500acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato 74600acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato /** 747043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung * Sets the current fling-to-delete drop target. 748043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung */ 749043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung public void setFlingToDeleteDropTarget(DropTarget target) { 750043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung mFlingToDeleteDropTarget = target; 751043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung } 752043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung 753043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung private void acquireVelocityTrackerAndAddMovement(MotionEvent ev) { 754043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung if (mVelocityTracker == null) { 755043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung mVelocityTracker = VelocityTracker.obtain(); 756043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung } 757043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung mVelocityTracker.addMovement(ev); 758043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung } 759043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung 760043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung private void releaseVelocityTracker() { 761043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung if (mVelocityTracker != null) { 762043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung mVelocityTracker.recycle(); 763043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung mVelocityTracker = null; 764043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung } 765043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung } 766043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung 767043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung /** 76800acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato * Set which view scrolls for touch events near the edge of the screen. 76900acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato */ 77000acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato public void setScrollView(View v) { 77100acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato mScrollView = v; 77200acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato } 77300acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato 7745f445425606b2c27276a79e9e871cf7f67b1b719Patrick Dubroy DragView getDragView() { 775cb3382b1bfe1a534b1b44f5c4def9b2db605ac90Adam Cohen return mDragObject.dragView; 7765f445425606b2c27276a79e9e871cf7f67b1b719Patrick Dubroy } 7775f445425606b2c27276a79e9e871cf7f67b1b719Patrick Dubroy 77800acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato private class ScrollRunnable implements Runnable { 77900acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato private int mDirection; 78000acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato 78100acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato ScrollRunnable() { 78200acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato } 78300acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato 78400acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato public void run() { 78500acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato if (mDragScroller != null) { 78600acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato if (mDirection == SCROLL_LEFT) { 78700acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato mDragScroller.scrollLeft(); 78800acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato } else { 78900acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato mDragScroller.scrollRight(); 79000acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato } 79100acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato mScrollState = SCROLL_OUTSIDE_ZONE; 792a16fd5a6bd5371d40a5679261d416f06f8efa022Patrick Dubroy mDistanceSinceScroll = 0; 793a16fd5a6bd5371d40a5679261d416f06f8efa022Patrick Dubroy mDragScroller.onExitScrollArea(); 794360e63fd3e77247002b86da2a77bd8dfe8c8a807Winson Chung mLauncher.getDragLayer().onExitScrollArea(); 795aa15ffe60e28b923ebf3e3162ce427ca6feae803Winson Chung 796aa15ffe60e28b923ebf3e3162ce427ca6feae803Winson Chung if (isDragging()) { 797aa15ffe60e28b923ebf3e3162ce427ca6feae803Winson Chung // Force an update so that we can requeue the scroller if necessary 7983bc21c35fa167ac233e19df0c9a01b0a07173ed8Winson Chung forceMoveEvent(); 799aa15ffe60e28b923ebf3e3162ce427ca6feae803Winson Chung } 80000acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato } 80100acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato } 80200acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato 80300acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato void setDirection(int direction) { 80400acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato mDirection = direction; 80500acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato } 80600acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato } 80731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project} 808