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, 17805713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka Point extraPadding, float initialDragViewScale) { 179e3193b93ad7bf33e2e45319084a99b9fc986622bWinson Chung int[] loc = mCoordinatesTemp; 1808dfcba4af7a7ece09e8c7d96053e54f3a383e905Adam Cohen mLauncher.getDragLayer().getLocationInDragLayer(v, loc); 18105713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka int viewExtraPaddingLeft = extraPadding != null ? extraPadding.x : 0; 18205713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka int viewExtraPaddingTop = extraPadding != null ? extraPadding.y : 0; 18305713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka int dragLayerX = loc[0] + v.getPaddingLeft() + viewExtraPaddingLeft + 18472d598400da7cef9c7fc4f99bb1fcd7ff0710011Winson Chung (int) ((initialDragViewScale * bmp.getWidth() - bmp.getWidth()) / 2); 18505713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka int dragLayerY = loc[1] + v.getPaddingTop() + viewExtraPaddingTop + 18672d598400da7cef9c7fc4f99bb1fcd7ff0710011Winson Chung (int) ((initialDragViewScale * bmp.getHeight() - bmp.getHeight()) / 2); 187e3193b93ad7bf33e2e45319084a99b9fc986622bWinson Chung 18805713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka startDrag(bmp, dragLayerX, dragLayerY, source, dragInfo, dragAction, null, 18905713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka null, initialDragViewScale); 190e3193b93ad7bf33e2e45319084a99b9fc986622bWinson Chung 191e3193b93ad7bf33e2e45319084a99b9fc986622bWinson Chung if (dragAction == DRAG_ACTION_MOVE) { 192e3193b93ad7bf33e2e45319084a99b9fc986622bWinson Chung v.setVisibility(View.GONE); 193e3193b93ad7bf33e2e45319084a99b9fc986622bWinson Chung } 194e3193b93ad7bf33e2e45319084a99b9fc986622bWinson Chung } 195e3193b93ad7bf33e2e45319084a99b9fc986622bWinson Chung 196e3193b93ad7bf33e2e45319084a99b9fc986622bWinson Chung /** 197e3193b93ad7bf33e2e45319084a99b9fc986622bWinson Chung * Starts a drag. 198e3193b93ad7bf33e2e45319084a99b9fc986622bWinson Chung * 1995162ea9b1f41dbebe00fd9ec4d1e15a697971439Joe Onorato * @param b The bitmap to display as the drag image. It will be re-scaled to the 2005162ea9b1f41dbebe00fd9ec4d1e15a697971439Joe Onorato * enlarged size. 2018dfcba4af7a7ece09e8c7d96053e54f3a383e905Adam Cohen * @param dragLayerX The x position in the DragLayer of the left-top of the bitmap. 2028dfcba4af7a7ece09e8c7d96053e54f3a383e905Adam Cohen * @param dragLayerY The y position in the DragLayer of the left-top of the bitmap. 2035162ea9b1f41dbebe00fd9ec4d1e15a697971439Joe Onorato * @param source An object representing where the drag originated 204ea3763c2672f77539538af8cdd395ad97058eaabRomain Guy * @param dragInfo The data associated with the object that is being dragged 2055162ea9b1f41dbebe00fd9ec4d1e15a697971439Joe Onorato * @param dragAction The drag action: either {@link #DRAG_ACTION_MOVE} or 2065162ea9b1f41dbebe00fd9ec4d1e15a697971439Joe Onorato * {@link #DRAG_ACTION_COPY} 207a63c452f5bd491ba9b28c332ccedc6c6c7e2f3ccMichael Jurka * @param dragRegion Coordinates within the bitmap b for the position of item being dragged. 208a63c452f5bd491ba9b28c332ccedc6c6c7e2f3ccMichael Jurka * Makes dragging feel more precise, e.g. you can clip out a transparent border 209a63c452f5bd491ba9b28c332ccedc6c6c7e2f3ccMichael Jurka */ 2108dfcba4af7a7ece09e8c7d96053e54f3a383e905Adam Cohen public void startDrag(Bitmap b, int dragLayerX, int dragLayerY, 21172d598400da7cef9c7fc4f99bb1fcd7ff0710011Winson Chung DragSource source, Object dragInfo, int dragAction, Point dragOffset, Rect dragRegion, 21272d598400da7cef9c7fc4f99bb1fcd7ff0710011Winson Chung float initialDragViewScale) { 21300acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato if (PROFILE_DRAWING_DURING_DRAG) { 21400acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato android.os.Debug.startMethodTracing("Launcher"); 21500acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato } 21600acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato 21700acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato // Hide soft keyboard, if visible 21800acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato if (mInputMethodManager == null) { 21900acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato mInputMethodManager = (InputMethodManager) 2208dfcba4af7a7ece09e8c7d96053e54f3a383e905Adam Cohen mLauncher.getSystemService(Context.INPUT_METHOD_SERVICE); 22100acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato } 22200acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato mInputMethodManager.hideSoftInputFromWindow(mWindowToken, 0); 22300acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato 2244ed6278e518cc6894cb150b606382e8e6a012599Patrick Dubroy for (DragListener listener : mListeners) { 2254ed6278e518cc6894cb150b606382e8e6a012599Patrick Dubroy listener.onDragStart(source, dragInfo, dragAction); 22600acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato } 22700acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato 2288dfcba4af7a7ece09e8c7d96053e54f3a383e905Adam Cohen final int registrationX = mMotionDownX - dragLayerX; 2298dfcba4af7a7ece09e8c7d96053e54f3a383e905Adam Cohen final int registrationY = mMotionDownY - dragLayerY; 23000acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato 231a63c452f5bd491ba9b28c332ccedc6c6c7e2f3ccMichael Jurka final int dragRegionLeft = dragRegion == null ? 0 : dragRegion.left; 232a63c452f5bd491ba9b28c332ccedc6c6c7e2f3ccMichael Jurka final int dragRegionTop = dragRegion == null ? 0 : dragRegion.top; 233e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen 23400acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato mDragging = true; 235cb3382b1bfe1a534b1b44f5c4def9b2db605ac90Adam Cohen 2369932a9b1e66fed4b5f38ce50f13d56331bbdcd7eAdam Cohen mDragObject = new DropTarget.DragObject(); 2379932a9b1e66fed4b5f38ce50f13d56331bbdcd7eAdam Cohen 238bfbfd26c627a18f8e1e3e6d0e53e78feab360203Adam Cohen mDragObject.dragComplete = false; 2398dfcba4af7a7ece09e8c7d96053e54f3a383e905Adam Cohen mDragObject.xOffset = mMotionDownX - (dragLayerX + dragRegionLeft); 2408dfcba4af7a7ece09e8c7d96053e54f3a383e905Adam Cohen mDragObject.yOffset = mMotionDownY - (dragLayerY + dragRegionTop); 241cb3382b1bfe1a534b1b44f5c4def9b2db605ac90Adam Cohen mDragObject.dragSource = source; 242cb3382b1bfe1a534b1b44f5c4def9b2db605ac90Adam Cohen mDragObject.dragInfo = dragInfo; 24300acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato 24400acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato mVibrator.vibrate(VIBRATE_DURATION); 24500acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato 2468dfcba4af7a7ece09e8c7d96053e54f3a383e905Adam Cohen final DragView dragView = mDragObject.dragView = new DragView(mLauncher, b, registrationX, 24772d598400da7cef9c7fc4f99bb1fcd7ff0710011Winson Chung registrationY, 0, 0, b.getWidth(), b.getHeight(), initialDragViewScale); 248a63c452f5bd491ba9b28c332ccedc6c6c7e2f3ccMichael Jurka 249b8c69f3c17a40adc2d85e8e996f754c383c293dcWinson Chung if (dragOffset != null) { 250b8c69f3c17a40adc2d85e8e996f754c383c293dcWinson Chung dragView.setDragVisualizeOffset(new Point(dragOffset)); 251b8c69f3c17a40adc2d85e8e996f754c383c293dcWinson Chung } 252a63c452f5bd491ba9b28c332ccedc6c6c7e2f3ccMichael Jurka if (dragRegion != null) { 253e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen dragView.setDragRegion(new Rect(dragRegion)); 254a63c452f5bd491ba9b28c332ccedc6c6c7e2f3ccMichael Jurka } 255a63c452f5bd491ba9b28c332ccedc6c6c7e2f3ccMichael Jurka 2568dfcba4af7a7ece09e8c7d96053e54f3a383e905Adam Cohen dragView.show(mMotionDownX, mMotionDownY); 2578dfcba4af7a7ece09e8c7d96053e54f3a383e905Adam Cohen handleMoveEvent(mMotionDownX, mMotionDownY); 25800acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato } 25900acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato 26000acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato /** 26100acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato * Draw the view into a bitmap. 26200acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato */ 263120980bd00f5eecec5717f49a3d7db96571025a9Adam Cohen Bitmap getViewBitmap(View v) { 26400acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato v.clearFocus(); 26500acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato v.setPressed(false); 26600acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato 26700acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato boolean willNotCache = v.willNotCacheDrawing(); 26800acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato v.setWillNotCacheDrawing(false); 26900acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato 27000acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato // Reset the drawing cache background color to fully transparent 27100acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato // for the duration of this operation 27200acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato int color = v.getDrawingCacheBackgroundColor(); 27300acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato v.setDrawingCacheBackgroundColor(0); 274120980bd00f5eecec5717f49a3d7db96571025a9Adam Cohen float alpha = v.getAlpha(); 275120980bd00f5eecec5717f49a3d7db96571025a9Adam Cohen v.setAlpha(1.0f); 27600acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato 27700acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato if (color != 0) { 27800acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato v.destroyDrawingCache(); 27900acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato } 28000acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato v.buildDrawingCache(); 28100acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato Bitmap cacheBitmap = v.getDrawingCache(); 2823f8175a86e24b3568d1f5b12e1d3d5efcc57d691Daniel Sandler if (cacheBitmap == null) { 2833f8175a86e24b3568d1f5b12e1d3d5efcc57d691Daniel Sandler Log.e(TAG, "failed getViewBitmap(" + v + ")", new RuntimeException()); 2843f8175a86e24b3568d1f5b12e1d3d5efcc57d691Daniel Sandler return null; 2853f8175a86e24b3568d1f5b12e1d3d5efcc57d691Daniel Sandler } 28600acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato 28700acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato Bitmap bitmap = Bitmap.createBitmap(cacheBitmap); 28800acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato 28900acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato // Restore the view 29000acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato v.destroyDrawingCache(); 291120980bd00f5eecec5717f49a3d7db96571025a9Adam Cohen v.setAlpha(alpha); 29200acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato v.setWillNotCacheDrawing(willNotCache); 29300acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato v.setDrawingCacheBackgroundColor(color); 29400acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato 29500acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato return bitmap; 29600acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato } 29700acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato 29800acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato /** 29900acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato * Call this from a drag source view like this: 30000acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato * 30100acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato * <pre> 30200acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato * @Override 30300acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato * public boolean dispatchKeyEvent(KeyEvent event) { 30400acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato * return mDragController.dispatchKeyEvent(this, event) 30500acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato * || super.dispatchKeyEvent(event); 30600acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato * </pre> 30700acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato */ 30800acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato public boolean dispatchKeyEvent(KeyEvent event) { 30900acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato return mDragging; 31000acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato } 31100acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato 312304dcde0e301c2f1a0b2bdc80ea8617930691b6eWinson Chung public boolean isDragging() { 313304dcde0e301c2f1a0b2bdc80ea8617930691b6eWinson Chung return mDragging; 314304dcde0e301c2f1a0b2bdc80ea8617930691b6eWinson Chung } 315304dcde0e301c2f1a0b2bdc80ea8617930691b6eWinson Chung 31624b6fd854f75f21700a330c2f0d11938e5dfeab6Joe Onorato /** 31724b6fd854f75f21700a330c2f0d11938e5dfeab6Joe Onorato * Stop dragging without dropping. 31824b6fd854f75f21700a330c2f0d11938e5dfeab6Joe Onorato */ 31924b6fd854f75f21700a330c2f0d11938e5dfeab6Joe Onorato public void cancelDrag() { 320621e6406fadba27d6cff1c38b31d5cdf99c0f97aWinson Chung if (mDragging) { 321c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung if (mLastDropTarget != null) { 322c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung mLastDropTarget.onDragExit(mDragObject); 323c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung } 32441bb19d2775836e30ebf42f681b4617bc71600aaWinson Chung mDragObject.deferDragViewCleanupPostAnimation = false; 32536cc09b07b19198f4ea886583cef462ade27192cAdam Cohen mDragObject.cancelled = true; 326bfbfd26c627a18f8e1e3e6d0e53e78feab360203Adam Cohen mDragObject.dragComplete = true; 327a48487a814c07a9f1f45eb3ffe3d873b3dc31b3bWinson Chung mDragObject.dragSource.onDropCompleted(null, mDragObject, false, false); 328621e6406fadba27d6cff1c38b31d5cdf99c0f97aWinson Chung } 32924b6fd854f75f21700a330c2f0d11938e5dfeab6Joe Onorato endDrag(); 33024b6fd854f75f21700a330c2f0d11938e5dfeab6Joe Onorato } 33183892cc0768bd6d7f0827886e9e7a2eb3eed2b01Winson Chung public void onAppsRemoved(ArrayList<ApplicationInfo> appInfos, Context context) { 332a182096cb20e0580dfca6661b2e5871c8886c834Winson Chung // Cancel the current drag if we are removing an app that we are dragging 333a182096cb20e0580dfca6661b2e5871c8886c834Winson Chung if (mDragObject != null) { 334a182096cb20e0580dfca6661b2e5871c8886c834Winson Chung Object rawDragInfo = mDragObject.dragInfo; 335a182096cb20e0580dfca6661b2e5871c8886c834Winson Chung if (rawDragInfo instanceof ShortcutInfo) { 336a182096cb20e0580dfca6661b2e5871c8886c834Winson Chung ShortcutInfo dragInfo = (ShortcutInfo) rawDragInfo; 33783892cc0768bd6d7f0827886e9e7a2eb3eed2b01Winson Chung for (ApplicationInfo info : appInfos) { 3387bcadad93f97e79d95ae879fe165de2e2371f613Michael Jurka // Added null checks to prevent NPE we've seen in the wild 3397bcadad93f97e79d95ae879fe165de2e2371f613Michael Jurka if (dragInfo != null && 340cd81073eac537e9f85eeee14588d513ea8a56e17Winson Chung dragInfo.intent != null) { 34183892cc0768bd6d7f0827886e9e7a2eb3eed2b01Winson Chung boolean isSameComponent = 34283892cc0768bd6d7f0827886e9e7a2eb3eed2b01Winson Chung dragInfo.intent.getComponent().equals(info.componentName); 34383892cc0768bd6d7f0827886e9e7a2eb3eed2b01Winson Chung if (isSameComponent) { 34411a4937fbff0dbc50fb022513dc3b6c643154445Winson Chung cancelDrag(); 34511a4937fbff0dbc50fb022513dc3b6c643154445Winson Chung return; 34611a4937fbff0dbc50fb022513dc3b6c643154445Winson Chung } 347a182096cb20e0580dfca6661b2e5871c8886c834Winson Chung } 348a182096cb20e0580dfca6661b2e5871c8886c834Winson Chung } 349a182096cb20e0580dfca6661b2e5871c8886c834Winson Chung } 350a182096cb20e0580dfca6661b2e5871c8886c834Winson Chung } 351a182096cb20e0580dfca6661b2e5871c8886c834Winson Chung } 35224b6fd854f75f21700a330c2f0d11938e5dfeab6Joe Onorato 35300acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato private void endDrag() { 35400acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato if (mDragging) { 35500acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato mDragging = false; 356aa15ffe60e28b923ebf3e3162ce427ca6feae803Winson Chung clearScrollRunnable(); 357043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung boolean isDeferred = false; 358cb3382b1bfe1a534b1b44f5c4def9b2db605ac90Adam Cohen if (mDragObject.dragView != null) { 359043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung isDeferred = mDragObject.deferDragViewCleanupPostAnimation; 360043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung if (!isDeferred) { 3617bd1bbb509f9569fa18d6b4d33242679fd98bc9bWinson Chung mDragObject.dragView.remove(); 3627bd1bbb509f9569fa18d6b4d33242679fd98bc9bWinson Chung } 363cb3382b1bfe1a534b1b44f5c4def9b2db605ac90Adam Cohen mDragObject.dragView = null; 36400acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato } 365043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung 366043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung // Only end the drag if we are not deferred 367043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung if (!isDeferred) { 368043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung for (DragListener listener : mListeners) { 369043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung listener.onDragEnd(); 370043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung } 371043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung } 372043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung } 373043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung 374043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung releaseVelocityTracker(); 375043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung } 376043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung 377043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung /** 378043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung * This only gets called as a result of drag view cleanup being deferred in endDrag(); 379043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung */ 380043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung void onDeferredEndDrag(DragView dragView) { 381043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung dragView.remove(); 382043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung 383043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung // If we skipped calling onDragEnd() before, do it now 384043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung for (DragListener listener : mListeners) { 385043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung listener.onDragEnd(); 38600acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato } 38700acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato } 38800acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato 389a48487a814c07a9f1f45eb3ffe3d873b3dc31b3bWinson Chung void onDeferredEndFling(DropTarget.DragObject d) { 390a48487a814c07a9f1f45eb3ffe3d873b3dc31b3bWinson Chung d.dragSource.onFlingToDeleteCompleted(); 391a48487a814c07a9f1f45eb3ffe3d873b3dc31b3bWinson Chung } 392a48487a814c07a9f1f45eb3ffe3d873b3dc31b3bWinson Chung 39300acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato /** 394273c1022405bcc5e0840450b9195622e7476c9ddWinson Chung * Clamps the position to the drag layer bounds. 395273c1022405bcc5e0840450b9195622e7476c9ddWinson Chung */ 396273c1022405bcc5e0840450b9195622e7476c9ddWinson Chung private int[] getClampedDragLayerPos(float x, float y) { 397273c1022405bcc5e0840450b9195622e7476c9ddWinson Chung mLauncher.getDragLayer().getLocalVisibleRect(mDragLayerRect); 398273c1022405bcc5e0840450b9195622e7476c9ddWinson Chung mTmpPoint[0] = (int) Math.max(mDragLayerRect.left, Math.min(x, mDragLayerRect.right - 1)); 399273c1022405bcc5e0840450b9195622e7476c9ddWinson Chung mTmpPoint[1] = (int) Math.max(mDragLayerRect.top, Math.min(y, mDragLayerRect.bottom - 1)); 400273c1022405bcc5e0840450b9195622e7476c9ddWinson Chung return mTmpPoint; 401273c1022405bcc5e0840450b9195622e7476c9ddWinson Chung } 402273c1022405bcc5e0840450b9195622e7476c9ddWinson Chung 403a2413751e3a698aef9c87411a639637883856939Winson Chung long getLastGestureUpTime() { 404a2413751e3a698aef9c87411a639637883856939Winson Chung if (mDragging) { 405a2413751e3a698aef9c87411a639637883856939Winson Chung return System.currentTimeMillis(); 406a2413751e3a698aef9c87411a639637883856939Winson Chung } else { 407a2413751e3a698aef9c87411a639637883856939Winson Chung return mLastTouchUpTime; 408a2413751e3a698aef9c87411a639637883856939Winson Chung } 409a2413751e3a698aef9c87411a639637883856939Winson Chung } 410a2413751e3a698aef9c87411a639637883856939Winson Chung 411a2413751e3a698aef9c87411a639637883856939Winson Chung void resetLastGestureUpTime() { 412a2413751e3a698aef9c87411a639637883856939Winson Chung mLastTouchUpTime = -1; 413a2413751e3a698aef9c87411a639637883856939Winson Chung } 414a2413751e3a698aef9c87411a639637883856939Winson Chung 415273c1022405bcc5e0840450b9195622e7476c9ddWinson Chung /** 41600acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato * Call this from a drag source view. 41700acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato */ 41800acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato public boolean onInterceptTouchEvent(MotionEvent ev) { 4193a9fcedbcd235372cd2ab64f825a0b5b3937f59eMichael Jurka @SuppressWarnings("all") // suppress dead code warning 4203a9fcedbcd235372cd2ab64f825a0b5b3937f59eMichael Jurka final boolean debug = false; 4213a9fcedbcd235372cd2ab64f825a0b5b3937f59eMichael Jurka if (debug) { 422a30ce8e6b25e41f392a41fd4d0d3e0a424a84dadJoe Onorato Log.d(Launcher.TAG, "DragController.onInterceptTouchEvent " + ev + " mDragging=" 4239c1289cb3bfb74f86e53ec7ac6dd76bb39666b2dJoe Onorato + mDragging); 4249c1289cb3bfb74f86e53ec7ac6dd76bb39666b2dJoe Onorato } 42500acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato 426043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung // Update the velocity tracker 427043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung acquireVelocityTrackerAndAddMovement(ev); 428043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung 429043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung final int action = ev.getAction(); 430273c1022405bcc5e0840450b9195622e7476c9ddWinson Chung final int[] dragLayerPos = getClampedDragLayerPos(ev.getX(), ev.getY()); 431273c1022405bcc5e0840450b9195622e7476c9ddWinson Chung final int dragLayerX = dragLayerPos[0]; 432273c1022405bcc5e0840450b9195622e7476c9ddWinson Chung final int dragLayerY = dragLayerPos[1]; 43300acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato 43400acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato switch (action) { 43500acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato case MotionEvent.ACTION_MOVE: 43600acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato break; 43700acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato case MotionEvent.ACTION_DOWN: 43800acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato // Remember location of down touch 4398dfcba4af7a7ece09e8c7d96053e54f3a383e905Adam Cohen mMotionDownX = dragLayerX; 4408dfcba4af7a7ece09e8c7d96053e54f3a383e905Adam Cohen mMotionDownY = dragLayerY; 44100acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato mLastDropTarget = null; 44200acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato break; 44300acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato case MotionEvent.ACTION_UP: 444a2413751e3a698aef9c87411a639637883856939Winson Chung mLastTouchUpTime = System.currentTimeMillis(); 44500acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato if (mDragging) { 446043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung PointF vec = isFlingingToDelete(mDragObject.dragSource); 447043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung if (vec != null) { 448043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung dropOnFlingToDeleteTarget(dragLayerX, dragLayerY, vec); 449043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung } else { 450043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung drop(dragLayerX, dragLayerY); 451043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung } 45200acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato } 45300acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato endDrag(); 45400acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato break; 455621e6406fadba27d6cff1c38b31d5cdf99c0f97aWinson Chung case MotionEvent.ACTION_CANCEL: 456621e6406fadba27d6cff1c38b31d5cdf99c0f97aWinson Chung cancelDrag(); 457621e6406fadba27d6cff1c38b31d5cdf99c0f97aWinson Chung break; 45800acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato } 45900acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato 46000acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato return mDragging; 46100acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato } 46200acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato 46300acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato /** 464ea3763c2672f77539538af8cdd395ad97058eaabRomain Guy * Sets the view that should handle move events. 465ea3763c2672f77539538af8cdd395ad97058eaabRomain Guy */ 466ea3763c2672f77539538af8cdd395ad97058eaabRomain Guy void setMoveTarget(View view) { 467ea3763c2672f77539538af8cdd395ad97058eaabRomain Guy mMoveTarget = view; 468ea3763c2672f77539538af8cdd395ad97058eaabRomain Guy } 469ea3763c2672f77539538af8cdd395ad97058eaabRomain Guy 470ea3763c2672f77539538af8cdd395ad97058eaabRomain Guy public boolean dispatchUnhandledMove(View focused, int direction) { 471ea3763c2672f77539538af8cdd395ad97058eaabRomain Guy return mMoveTarget != null && mMoveTarget.dispatchUnhandledMove(focused, direction); 472ea3763c2672f77539538af8cdd395ad97058eaabRomain Guy } 473ea3763c2672f77539538af8cdd395ad97058eaabRomain Guy 474aa15ffe60e28b923ebf3e3162ce427ca6feae803Winson Chung private void clearScrollRunnable() { 475aa15ffe60e28b923ebf3e3162ce427ca6feae803Winson Chung mHandler.removeCallbacks(mScrollRunnable); 476aa15ffe60e28b923ebf3e3162ce427ca6feae803Winson Chung if (mScrollState == SCROLL_WAITING_IN_ZONE) { 477aa15ffe60e28b923ebf3e3162ce427ca6feae803Winson Chung mScrollState = SCROLL_OUTSIDE_ZONE; 478aa15ffe60e28b923ebf3e3162ce427ca6feae803Winson Chung mScrollRunnable.setDirection(SCROLL_RIGHT); 479aa15ffe60e28b923ebf3e3162ce427ca6feae803Winson Chung mDragScroller.onExitScrollArea(); 480360e63fd3e77247002b86da2a77bd8dfe8c8a807Winson Chung mLauncher.getDragLayer().onExitScrollArea(); 481aa15ffe60e28b923ebf3e3162ce427ca6feae803Winson Chung } 482aa15ffe60e28b923ebf3e3162ce427ca6feae803Winson Chung } 483aa15ffe60e28b923ebf3e3162ce427ca6feae803Winson Chung 484de7658b5e02ae10010e44fcf8d9c5814f54d9eb0Patrick Dubroy private void handleMoveEvent(int x, int y) { 485cb3382b1bfe1a534b1b44f5c4def9b2db605ac90Adam Cohen mDragObject.dragView.move(x, y); 486de7658b5e02ae10010e44fcf8d9c5814f54d9eb0Patrick Dubroy 487de7658b5e02ae10010e44fcf8d9c5814f54d9eb0Patrick Dubroy // Drop on someone? 488de7658b5e02ae10010e44fcf8d9c5814f54d9eb0Patrick Dubroy final int[] coordinates = mCoordinatesTemp; 489de7658b5e02ae10010e44fcf8d9c5814f54d9eb0Patrick Dubroy DropTarget dropTarget = findDropTarget(x, y, coordinates); 490cb3382b1bfe1a534b1b44f5c4def9b2db605ac90Adam Cohen mDragObject.x = coordinates[0]; 491cb3382b1bfe1a534b1b44f5c4def9b2db605ac90Adam Cohen mDragObject.y = coordinates[1]; 49225460a1d5cb473033408c9e76898bb77e785c66fWinson Chung checkTouchMove(dropTarget); 49325460a1d5cb473033408c9e76898bb77e785c66fWinson Chung 49425460a1d5cb473033408c9e76898bb77e785c66fWinson Chung // Check if we are hovering over the scroll areas 49525460a1d5cb473033408c9e76898bb77e785c66fWinson Chung mDistanceSinceScroll += 49625460a1d5cb473033408c9e76898bb77e785c66fWinson Chung Math.sqrt(Math.pow(mLastTouch[0] - x, 2) + Math.pow(mLastTouch[1] - y, 2)); 49725460a1d5cb473033408c9e76898bb77e785c66fWinson Chung mLastTouch[0] = x; 49825460a1d5cb473033408c9e76898bb77e785c66fWinson Chung mLastTouch[1] = y; 49925460a1d5cb473033408c9e76898bb77e785c66fWinson Chung checkScrollState(x, y); 50025460a1d5cb473033408c9e76898bb77e785c66fWinson Chung } 50125460a1d5cb473033408c9e76898bb77e785c66fWinson Chung 50225460a1d5cb473033408c9e76898bb77e785c66fWinson Chung public void forceTouchMove() { 50325460a1d5cb473033408c9e76898bb77e785c66fWinson Chung int[] dummyCoordinates = mCoordinatesTemp; 50425460a1d5cb473033408c9e76898bb77e785c66fWinson Chung DropTarget dropTarget = findDropTarget(mLastTouch[0], mLastTouch[1], dummyCoordinates); 50525460a1d5cb473033408c9e76898bb77e785c66fWinson Chung checkTouchMove(dropTarget); 50625460a1d5cb473033408c9e76898bb77e785c66fWinson Chung } 50725460a1d5cb473033408c9e76898bb77e785c66fWinson Chung 50825460a1d5cb473033408c9e76898bb77e785c66fWinson Chung private void checkTouchMove(DropTarget dropTarget) { 509de7658b5e02ae10010e44fcf8d9c5814f54d9eb0Patrick Dubroy if (dropTarget != null) { 510cb3382b1bfe1a534b1b44f5c4def9b2db605ac90Adam Cohen DropTarget delegate = dropTarget.getDropTargetDelegate(mDragObject); 511de7658b5e02ae10010e44fcf8d9c5814f54d9eb0Patrick Dubroy if (delegate != null) { 512de7658b5e02ae10010e44fcf8d9c5814f54d9eb0Patrick Dubroy dropTarget = delegate; 513de7658b5e02ae10010e44fcf8d9c5814f54d9eb0Patrick Dubroy } 514de7658b5e02ae10010e44fcf8d9c5814f54d9eb0Patrick Dubroy 515de7658b5e02ae10010e44fcf8d9c5814f54d9eb0Patrick Dubroy if (mLastDropTarget != dropTarget) { 516de7658b5e02ae10010e44fcf8d9c5814f54d9eb0Patrick Dubroy if (mLastDropTarget != null) { 517cb3382b1bfe1a534b1b44f5c4def9b2db605ac90Adam Cohen mLastDropTarget.onDragExit(mDragObject); 518de7658b5e02ae10010e44fcf8d9c5814f54d9eb0Patrick Dubroy } 519cb3382b1bfe1a534b1b44f5c4def9b2db605ac90Adam Cohen dropTarget.onDragEnter(mDragObject); 520de7658b5e02ae10010e44fcf8d9c5814f54d9eb0Patrick Dubroy } 521cb3382b1bfe1a534b1b44f5c4def9b2db605ac90Adam Cohen dropTarget.onDragOver(mDragObject); 522de7658b5e02ae10010e44fcf8d9c5814f54d9eb0Patrick Dubroy } else { 523de7658b5e02ae10010e44fcf8d9c5814f54d9eb0Patrick Dubroy if (mLastDropTarget != null) { 524cb3382b1bfe1a534b1b44f5c4def9b2db605ac90Adam Cohen mLastDropTarget.onDragExit(mDragObject); 525de7658b5e02ae10010e44fcf8d9c5814f54d9eb0Patrick Dubroy } 526de7658b5e02ae10010e44fcf8d9c5814f54d9eb0Patrick Dubroy } 527de7658b5e02ae10010e44fcf8d9c5814f54d9eb0Patrick Dubroy mLastDropTarget = dropTarget; 52825460a1d5cb473033408c9e76898bb77e785c66fWinson Chung } 529de7658b5e02ae10010e44fcf8d9c5814f54d9eb0Patrick Dubroy 53025460a1d5cb473033408c9e76898bb77e785c66fWinson Chung private void checkScrollState(int x, int y) { 5318dfcba4af7a7ece09e8c7d96053e54f3a383e905Adam Cohen final int slop = ViewConfiguration.get(mLauncher).getScaledWindowTouchSlop(); 532aa15ffe60e28b923ebf3e3162ce427ca6feae803Winson Chung final int delay = mDistanceSinceScroll < slop ? RESCROLL_DELAY : SCROLL_DELAY; 533fe1fe268b6d9ffd99218117795b3524a87e5110bWinson Chung final DragLayer dragLayer = mLauncher.getDragLayer(); 534fe1fe268b6d9ffd99218117795b3524a87e5110bWinson Chung final boolean isRtl = (dragLayer.getLayoutDirection() == View.LAYOUT_DIRECTION_RTL); 535fe1fe268b6d9ffd99218117795b3524a87e5110bWinson Chung final int forwardDirection = isRtl ? SCROLL_RIGHT : SCROLL_LEFT; 536fe1fe268b6d9ffd99218117795b3524a87e5110bWinson Chung final int backwardsDirection = isRtl ? SCROLL_LEFT : SCROLL_RIGHT; 537a16fd5a6bd5371d40a5679261d416f06f8efa022Patrick Dubroy 5383f4e1423804d64a38cb69e4511d7b80783564827Winson Chung if (x < mScrollZone) { 539aa15ffe60e28b923ebf3e3162ce427ca6feae803Winson Chung if (mScrollState == SCROLL_OUTSIDE_ZONE) { 540de7658b5e02ae10010e44fcf8d9c5814f54d9eb0Patrick Dubroy mScrollState = SCROLL_WAITING_IN_ZONE; 541fe1fe268b6d9ffd99218117795b3524a87e5110bWinson Chung if (mDragScroller.onEnterScrollArea(x, y, forwardDirection)) { 542fe1fe268b6d9ffd99218117795b3524a87e5110bWinson Chung dragLayer.onEnterScrollArea(forwardDirection); 543fe1fe268b6d9ffd99218117795b3524a87e5110bWinson Chung mScrollRunnable.setDirection(forwardDirection); 544aa15ffe60e28b923ebf3e3162ce427ca6feae803Winson Chung mHandler.postDelayed(mScrollRunnable, delay); 5453e0839e5f830ab7e64223ebe186d97729eda3e22Winson Chung } 546de7658b5e02ae10010e44fcf8d9c5814f54d9eb0Patrick Dubroy } 5473f4e1423804d64a38cb69e4511d7b80783564827Winson Chung } else if (x > mScrollView.getWidth() - mScrollZone) { 548aa15ffe60e28b923ebf3e3162ce427ca6feae803Winson Chung if (mScrollState == SCROLL_OUTSIDE_ZONE) { 549de7658b5e02ae10010e44fcf8d9c5814f54d9eb0Patrick Dubroy mScrollState = SCROLL_WAITING_IN_ZONE; 550fe1fe268b6d9ffd99218117795b3524a87e5110bWinson Chung if (mDragScroller.onEnterScrollArea(x, y, backwardsDirection)) { 551fe1fe268b6d9ffd99218117795b3524a87e5110bWinson Chung dragLayer.onEnterScrollArea(backwardsDirection); 552fe1fe268b6d9ffd99218117795b3524a87e5110bWinson Chung mScrollRunnable.setDirection(backwardsDirection); 553aa15ffe60e28b923ebf3e3162ce427ca6feae803Winson Chung mHandler.postDelayed(mScrollRunnable, delay); 5543e0839e5f830ab7e64223ebe186d97729eda3e22Winson Chung } 555de7658b5e02ae10010e44fcf8d9c5814f54d9eb0Patrick Dubroy } 556de7658b5e02ae10010e44fcf8d9c5814f54d9eb0Patrick Dubroy } else { 557aa15ffe60e28b923ebf3e3162ce427ca6feae803Winson Chung clearScrollRunnable(); 558de7658b5e02ae10010e44fcf8d9c5814f54d9eb0Patrick Dubroy } 559de7658b5e02ae10010e44fcf8d9c5814f54d9eb0Patrick Dubroy } 560de7658b5e02ae10010e44fcf8d9c5814f54d9eb0Patrick Dubroy 561ea3763c2672f77539538af8cdd395ad97058eaabRomain Guy /** 56200acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato * Call this from a drag source view. 56300acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato */ 56400acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato public boolean onTouchEvent(MotionEvent ev) { 56500acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato if (!mDragging) { 56600acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato return false; 56700acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato } 56800acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato 569043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung // Update the velocity tracker 570043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung acquireVelocityTrackerAndAddMovement(ev); 571043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung 57200acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato final int action = ev.getAction(); 573273c1022405bcc5e0840450b9195622e7476c9ddWinson Chung final int[] dragLayerPos = getClampedDragLayerPos(ev.getX(), ev.getY()); 574273c1022405bcc5e0840450b9195622e7476c9ddWinson Chung final int dragLayerX = dragLayerPos[0]; 575273c1022405bcc5e0840450b9195622e7476c9ddWinson Chung final int dragLayerY = dragLayerPos[1]; 57600acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato 57700acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato switch (action) { 57800acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato case MotionEvent.ACTION_DOWN: 57900acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato // Remember where the motion event started 5808dfcba4af7a7ece09e8c7d96053e54f3a383e905Adam Cohen mMotionDownX = dragLayerX; 5818dfcba4af7a7ece09e8c7d96053e54f3a383e905Adam Cohen mMotionDownY = dragLayerY; 58200acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato 5838dfcba4af7a7ece09e8c7d96053e54f3a383e905Adam Cohen if ((dragLayerX < mScrollZone) || (dragLayerX > mScrollView.getWidth() - mScrollZone)) { 58400acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato mScrollState = SCROLL_WAITING_IN_ZONE; 58500acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato mHandler.postDelayed(mScrollRunnable, SCROLL_DELAY); 58600acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato } else { 58700acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato mScrollState = SCROLL_OUTSIDE_ZONE; 58800acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato } 58900acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato break; 59000acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato case MotionEvent.ACTION_MOVE: 5918dfcba4af7a7ece09e8c7d96053e54f3a383e905Adam Cohen handleMoveEvent(dragLayerX, dragLayerY); 59200acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato break; 59300acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato case MotionEvent.ACTION_UP: 594b0a6bbeeab0960419dcd1f695c209ca0ec36ab8aPatrick Dubroy // Ensure that we've processed a move event at the current pointer location. 5958dfcba4af7a7ece09e8c7d96053e54f3a383e905Adam Cohen handleMoveEvent(dragLayerX, dragLayerY); 5963bc21c35fa167ac233e19df0c9a01b0a07173ed8Winson Chung mHandler.removeCallbacks(mScrollRunnable); 597043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung 59800acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato if (mDragging) { 599043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung PointF vec = isFlingingToDelete(mDragObject.dragSource); 600043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung if (vec != null) { 601043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung dropOnFlingToDeleteTarget(dragLayerX, dragLayerY, vec); 602043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung } else { 603043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung drop(dragLayerX, dragLayerY); 604043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung } 60500acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato } 60600acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato endDrag(); 60700acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato break; 60800acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato case MotionEvent.ACTION_CANCEL: 6093bc21c35fa167ac233e19df0c9a01b0a07173ed8Winson Chung mHandler.removeCallbacks(mScrollRunnable); 61024b6fd854f75f21700a330c2f0d11938e5dfeab6Joe Onorato cancelDrag(); 611621e6406fadba27d6cff1c38b31d5cdf99c0f97aWinson Chung break; 61200acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato } 61300acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato 61400acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato return true; 61500acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato } 61600acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato 617043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung /** 618043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung * Determines whether the user flung the current item to delete it. 619043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung * 620043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung * @return the vector at which the item was flung, or null if no fling was detected. 621043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung */ 622043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung private PointF isFlingingToDelete(DragSource source) { 623043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung if (mFlingToDeleteDropTarget == null) return null; 624043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung if (!source.supportsFlingToDelete()) return null; 625043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung 626043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung ViewConfiguration config = ViewConfiguration.get(mLauncher); 627043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung mVelocityTracker.computeCurrentVelocity(1000, config.getScaledMaximumFlingVelocity()); 628043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung 629043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung if (mVelocityTracker.getYVelocity() < mFlingToDeleteThresholdVelocity) { 630043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung // Do a quick dot product test to ensure that we are flinging upwards 631043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung PointF vel = new PointF(mVelocityTracker.getXVelocity(), 632043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung mVelocityTracker.getYVelocity()); 633043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung PointF upVec = new PointF(0f, -1f); 634043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung float theta = (float) Math.acos(((vel.x * upVec.x) + (vel.y * upVec.y)) / 635043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung (vel.length() * upVec.length())); 636043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung if (theta <= Math.toRadians(MAX_FLING_DEGREES)) { 637043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung return vel; 638043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung } 639043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung } 640043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung return null; 641043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung } 642043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung 643043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung private void dropOnFlingToDeleteTarget(float x, float y, PointF vel) { 644043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung final int[] coordinates = mCoordinatesTemp; 645043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung 646043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung mDragObject.x = coordinates[0]; 647043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung mDragObject.y = coordinates[1]; 648043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung 649043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung // Clean up dragging on the target if it's not the current fling delete target otherwise, 650043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung // start dragging to it. 651043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung if (mLastDropTarget != null && mFlingToDeleteDropTarget != mLastDropTarget) { 652043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung mLastDropTarget.onDragExit(mDragObject); 653043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung } 654043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung 655043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung // Drop onto the fling-to-delete target 656043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung boolean accepted = false; 657043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung mFlingToDeleteDropTarget.onDragEnter(mDragObject); 658232decb008661d82ed2ca6d5f3080ee5a50d3be1Winson Chung // We must set dragComplete to true _only_ after we "enter" the fling-to-delete target for 659232decb008661d82ed2ca6d5f3080ee5a50d3be1Winson Chung // "drop" 660232decb008661d82ed2ca6d5f3080ee5a50d3be1Winson Chung mDragObject.dragComplete = true; 661043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung mFlingToDeleteDropTarget.onDragExit(mDragObject); 662043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung if (mFlingToDeleteDropTarget.acceptDrop(mDragObject)) { 663043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung mFlingToDeleteDropTarget.onFlingToDelete(mDragObject, mDragObject.x, mDragObject.y, 664043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung vel); 665043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung accepted = true; 666043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung } 667a48487a814c07a9f1f45eb3ffe3d873b3dc31b3bWinson Chung mDragObject.dragSource.onDropCompleted((View) mFlingToDeleteDropTarget, mDragObject, true, 668043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung accepted); 669043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung } 670043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung 671b0a6bbeeab0960419dcd1f695c209ca0ec36ab8aPatrick Dubroy private void drop(float x, float y) { 67200acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato final int[] coordinates = mCoordinatesTemp; 673b0a6bbeeab0960419dcd1f695c209ca0ec36ab8aPatrick Dubroy final DropTarget dropTarget = findDropTarget((int) x, (int) y, coordinates); 67400acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato 675cb3382b1bfe1a534b1b44f5c4def9b2db605ac90Adam Cohen mDragObject.x = coordinates[0]; 676cb3382b1bfe1a534b1b44f5c4def9b2db605ac90Adam Cohen mDragObject.y = coordinates[1]; 677b0a6bbeeab0960419dcd1f695c209ca0ec36ab8aPatrick Dubroy boolean accepted = false; 67800acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato if (dropTarget != null) { 679bfbfd26c627a18f8e1e3e6d0e53e78feab360203Adam Cohen mDragObject.dragComplete = true; 680cb3382b1bfe1a534b1b44f5c4def9b2db605ac90Adam Cohen dropTarget.onDragExit(mDragObject); 681cb3382b1bfe1a534b1b44f5c4def9b2db605ac90Adam Cohen if (dropTarget.acceptDrop(mDragObject)) { 682cb3382b1bfe1a534b1b44f5c4def9b2db605ac90Adam Cohen dropTarget.onDrop(mDragObject); 683b0a6bbeeab0960419dcd1f695c209ca0ec36ab8aPatrick Dubroy accepted = true; 68400acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato } 68500acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato } 686a48487a814c07a9f1f45eb3ffe3d873b3dc31b3bWinson Chung mDragObject.dragSource.onDropCompleted((View) dropTarget, mDragObject, false, accepted); 68700acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato } 68800acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato 68900acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato private DropTarget findDropTarget(int x, int y, int[] dropCoordinates) { 69000acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato final Rect r = mRectTemp; 69100acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato 69200acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato final ArrayList<DropTarget> dropTargets = mDropTargets; 69300acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato final int count = dropTargets.size(); 69400acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato for (int i=count-1; i>=0; i--) { 695440c360bc395c43683fa9ca226e59f9e35f9e926Patrick Dubroy DropTarget target = dropTargets.get(i); 6960280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka if (!target.isDropEnabled()) 6970280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka continue; 6980280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka 69900acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato target.getHitRect(r); 700440c360bc395c43683fa9ca226e59f9e35f9e926Patrick Dubroy 7018dfcba4af7a7ece09e8c7d96053e54f3a383e905Adam Cohen // Convert the hit rect to DragLayer coordinates 7028dfcba4af7a7ece09e8c7d96053e54f3a383e905Adam Cohen target.getLocationInDragLayer(dropCoordinates); 70300acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato r.offset(dropCoordinates[0] - target.getLeft(), dropCoordinates[1] - target.getTop()); 704440c360bc395c43683fa9ca226e59f9e35f9e926Patrick Dubroy 705cb3382b1bfe1a534b1b44f5c4def9b2db605ac90Adam Cohen mDragObject.x = x; 706cb3382b1bfe1a534b1b44f5c4def9b2db605ac90Adam Cohen mDragObject.y = y; 70700acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato if (r.contains(x, y)) { 708cb3382b1bfe1a534b1b44f5c4def9b2db605ac90Adam Cohen DropTarget delegate = target.getDropTargetDelegate(mDragObject); 709440c360bc395c43683fa9ca226e59f9e35f9e926Patrick Dubroy if (delegate != null) { 710440c360bc395c43683fa9ca226e59f9e35f9e926Patrick Dubroy target = delegate; 7118dfcba4af7a7ece09e8c7d96053e54f3a383e905Adam Cohen target.getLocationInDragLayer(dropCoordinates); 712440c360bc395c43683fa9ca226e59f9e35f9e926Patrick Dubroy } 713440c360bc395c43683fa9ca226e59f9e35f9e926Patrick Dubroy 714440c360bc395c43683fa9ca226e59f9e35f9e926Patrick Dubroy // Make dropCoordinates relative to the DropTarget 71500acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato dropCoordinates[0] = x - dropCoordinates[0]; 71600acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato dropCoordinates[1] = y - dropCoordinates[1]; 717440c360bc395c43683fa9ca226e59f9e35f9e926Patrick Dubroy 71800acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato return target; 71900acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato } 72000acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato } 72100acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato return null; 72200acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato } 72300acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato 72400acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato public void setDragScoller(DragScroller scroller) { 72500acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato mDragScroller = scroller; 72600acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato } 72700acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato 72800acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato public void setWindowToken(IBinder token) { 72900acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato mWindowToken = token; 73000acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato } 73100acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato 73231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project /** 73331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project * Sets the drag listner which will be notified when a drag starts or ends. 73431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project */ 7354ed6278e518cc6894cb150b606382e8e6a012599Patrick Dubroy public void addDragListener(DragListener l) { 7364ed6278e518cc6894cb150b606382e8e6a012599Patrick Dubroy mListeners.add(l); 73700acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato } 73800acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato 73931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project /** 74031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project * Remove a previously installed drag listener. 74131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project */ 74200acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato public void removeDragListener(DragListener l) { 7434ed6278e518cc6894cb150b606382e8e6a012599Patrick Dubroy mListeners.remove(l); 74400acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato } 74500acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato 74600acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato /** 74700acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato * Add a DropTarget to the list of potential places to receive drop events. 74800acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato */ 74900acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato public void addDropTarget(DropTarget target) { 75000acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato mDropTargets.add(target); 75100acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato } 75200acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato 75300acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato /** 75400acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato * Don't send drop events to <em>target</em> any more. 75500acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato */ 75600acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato public void removeDropTarget(DropTarget target) { 75700acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato mDropTargets.remove(target); 75800acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato } 75900acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato 76000acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato /** 761043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung * Sets the current fling-to-delete drop target. 762043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung */ 763043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung public void setFlingToDeleteDropTarget(DropTarget target) { 764043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung mFlingToDeleteDropTarget = target; 765043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung } 766043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung 767043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung private void acquireVelocityTrackerAndAddMovement(MotionEvent ev) { 768043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung if (mVelocityTracker == null) { 769043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung mVelocityTracker = VelocityTracker.obtain(); 770043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung } 771043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung mVelocityTracker.addMovement(ev); 772043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung } 773043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung 774043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung private void releaseVelocityTracker() { 775043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung if (mVelocityTracker != null) { 776043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung mVelocityTracker.recycle(); 777043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung mVelocityTracker = null; 778043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung } 779043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung } 780043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung 781043f2af567178b82b0b41f12d379e7dd12da2936Winson Chung /** 78200acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato * Set which view scrolls for touch events near the edge of the screen. 78300acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato */ 78400acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato public void setScrollView(View v) { 78500acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato mScrollView = v; 78600acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato } 78700acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato 7885f445425606b2c27276a79e9e871cf7f67b1b719Patrick Dubroy DragView getDragView() { 789cb3382b1bfe1a534b1b44f5c4def9b2db605ac90Adam Cohen return mDragObject.dragView; 7905f445425606b2c27276a79e9e871cf7f67b1b719Patrick Dubroy } 7915f445425606b2c27276a79e9e871cf7f67b1b719Patrick Dubroy 79200acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato private class ScrollRunnable implements Runnable { 79300acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato private int mDirection; 79400acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato 79500acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato ScrollRunnable() { 79600acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato } 79700acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato 79800acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato public void run() { 79900acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato if (mDragScroller != null) { 80000acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato if (mDirection == SCROLL_LEFT) { 80100acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato mDragScroller.scrollLeft(); 80200acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato } else { 80300acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato mDragScroller.scrollRight(); 80400acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato } 80500acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato mScrollState = SCROLL_OUTSIDE_ZONE; 806a16fd5a6bd5371d40a5679261d416f06f8efa022Patrick Dubroy mDistanceSinceScroll = 0; 807a16fd5a6bd5371d40a5679261d416f06f8efa022Patrick Dubroy mDragScroller.onExitScrollArea(); 808360e63fd3e77247002b86da2a77bd8dfe8c8a807Winson Chung mLauncher.getDragLayer().onExitScrollArea(); 809aa15ffe60e28b923ebf3e3162ce427ca6feae803Winson Chung 810aa15ffe60e28b923ebf3e3162ce427ca6feae803Winson Chung if (isDragging()) { 81125460a1d5cb473033408c9e76898bb77e785c66fWinson Chung // Check the scroll again so that we can requeue the scroller if necessary 81225460a1d5cb473033408c9e76898bb77e785c66fWinson Chung checkScrollState(mLastTouch[0], mLastTouch[1]); 813aa15ffe60e28b923ebf3e3162ce427ca6feae803Winson Chung } 81400acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato } 81500acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato } 81600acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato 81700acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato void setDirection(int direction) { 81800acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato mDirection = direction; 81900acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato } 82000acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato } 82131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project} 822