Workspace.java revision 99633da90012dc732cbc12a96b33e17abcecb464
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
190280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurkaimport android.animation.Animator;
208edd75c8bb0729a10cb39f614183e3e9ae4288e8Michael Jurkaimport android.animation.AnimatorListenerAdapter;
21b1254a6bdb11024042fb6c27e179210c1bbd6e1cChet Haaseimport android.animation.AnimatorSet;
220280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurkaimport android.animation.ObjectAnimator;
23cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroyimport android.animation.TimeInterpolator;
24cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroyimport android.animation.ValueAnimator;
25716b51e030f9c6ed34af2b947760e46a280c65a6Adam Cohenimport android.animation.Animator.AnimatorListener;
26cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroyimport android.animation.ValueAnimator.AnimatorUpdateListener;
2768846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chungimport android.app.AlertDialog;
288f573952b8729b4319043ae0908997ecd2d68951Dianne Hackbornimport android.app.WallpaperManager;
29629de3ef739883c0962423cc0c3a26299f162d3dRomain Guyimport android.appwidget.AppWidgetManager;
30629de3ef739883c0962423cc0c3a26299f162d3dRomain Guyimport android.appwidget.AppWidgetProviderInfo;
31a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chungimport android.content.ClipData;
32a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chungimport android.content.ClipDescription;
33495f2892288504f4ab87e62957b3f71144dd73c2Adam Powellimport android.content.ComponentName;
3431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Projectimport android.content.Context;
3531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Projectimport android.content.Intent;
36495f2892288504f4ab87e62957b3f71144dd73c2Adam Powellimport android.content.pm.PackageManager;
377247f6315baf16eacb3286f21bd80321385c1defPatrick Dubroyimport android.content.res.Resources;
3831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Projectimport android.content.res.TypedArray;
394be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onoratoimport android.graphics.Bitmap;
406b879f0a5885274a85333531e091283405d490ccAdam Lesinskiimport android.graphics.Camera;
4131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Projectimport android.graphics.Canvas;
42ac8c87687b8e063c981f28cb31bab2cc110f26ccAdam Cohenimport android.graphics.Color;
43a63c452f5bd491ba9b28c332ccedc6c6c7e2f3ccMichael Jurkaimport android.graphics.Matrix;
44a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chungimport android.graphics.Paint;
4531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Projectimport android.graphics.Rect;
46a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chungimport android.graphics.RectF;
474be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onoratoimport android.graphics.Region.Op;
48f96811cdf564469a7a654a0c876288c9fd14f35eThe Android Open Source Projectimport android.graphics.drawable.Drawable;
49956091ba7863bd72086275e61084864994dd6fa7Joe Onoratoimport android.os.IBinder;
50495f2892288504f4ab87e62957b3f71144dd73c2Adam Powellimport android.os.Parcelable;
5131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Projectimport android.util.AttributeSet;
52b26f3d6a8c62e7c1a603b6c7979375d8dd4f20d4Winson Chungimport android.util.DisplayMetrics;
53291ad12232c98e383d44d76ffe09e97e204c61bcDaniel Sandlerimport android.util.Log;
54580e27748137ff08599aa719d106b31215a28353Winson Chungimport android.util.Pair;
55a34abf8c781485b788fddacb352d586bffca886cWinson Chungimport android.view.Display;
56a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chungimport android.view.DragEvent;
5731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Projectimport android.view.MotionEvent;
5831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Projectimport android.view.View;
596e3140865d3f0def2e55934d8b0b2c1503386e54Winson Chungimport android.view.ViewGroup;
60cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroyimport android.view.animation.DecelerateInterpolator;
61f96811cdf564469a7a654a0c876288c9fd14f35eThe Android Open Source Projectimport android.widget.TextView;
62a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chungimport android.widget.Toast;
6331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
646639687cd67bab1aeef2a75e5c6bc458b20dc082Adam Cohenimport com.android.launcher.R;
6519072da7441e07d5e90026d9e9e1b38f11245e44Adam Cohenimport com.android.launcher2.FolderIcon.FolderRingAnimator;
666639687cd67bab1aeef2a75e5c6bc458b20dc082Adam Cohenimport com.android.launcher2.InstallWidgetReceiver.WidgetMimeTypeHandlerData;
67edcce099c98a6c40d10109ac092ab50f9d2668f3Romain Guy
68716b51e030f9c6ed34af2b947760e46a280c65a6Adam Cohenimport java.util.ArrayList;
69716b51e030f9c6ed34af2b947760e46a280c65a6Adam Cohenimport java.util.HashSet;
70716b51e030f9c6ed34af2b947760e46a280c65a6Adam Cohenimport java.util.List;
71716b51e030f9c6ed34af2b947760e46a280c65a6Adam Cohen
7231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project/**
730142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka * The workspace is a wide area with a wallpaper and a finite number of pages.
740142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka * Each page contains a number of icons, folders or widgets the user can
75aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung * interact with. A workspace is meant to be used with a fixed width only.
7631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project */
770142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurkapublic class Workspace extends SmoothPagedView
78d74c984fcc61f86160476a2543faff715e3ee2fdMichael Jurka        implements DropTarget, DragSource, DragScroller, View.OnTouchListener,
79d74c984fcc61f86160476a2543faff715e3ee2fdMichael Jurka        DragController.DragListener {
80e47f55c30b9c24f01f2be861247c92f17fbe4a61Romain Guy    @SuppressWarnings({"UnusedDeclaration"})
813a8820bdbad90642cf5cda4b00a8c92ecb699159Joe Onorato    private static final String TAG = "Launcher.Workspace";
820142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka
83f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen    // Y rotation to apply to the workspace screens
84f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen    private static final float WORKSPACE_ROTATION = 12.5f;
85a985e598f6071f4caca15ba3cb6b2cd3e38b217dAdam Cohen
86a985e598f6071f4caca15ba3cb6b2cd3e38b217dAdam Cohen    // These are extra scale factors to apply to the mini home screens
87a985e598f6071f4caca15ba3cb6b2cd3e38b217dAdam Cohen    // so as to achieve the desired transform
881b0aaac0b3abd777ed319341f95a8dfff23c79f4Adam Cohen    private static final float EXTRA_SCALE_FACTOR_0 = 0.972f;
89a985e598f6071f4caca15ba3cb6b2cd3e38b217dAdam Cohen    private static final float EXTRA_SCALE_FACTOR_1 = 1.0f;
901b0aaac0b3abd777ed319341f95a8dfff23c79f4Adam Cohen    private static final float EXTRA_SCALE_FACTOR_2 = 1.10f;
91a985e598f6071f4caca15ba3cb6b2cd3e38b217dAdam Cohen
9268d739365bf650fe7fecf99cd3bfe63a0d41bd12Adam Cohen    private static final int CHILDREN_OUTLINE_FADE_OUT_DELAY = 0;
9368d739365bf650fe7fecf99cd3bfe63a0d41bd12Adam Cohen    private static final int CHILDREN_OUTLINE_FADE_OUT_DURATION = 375;
949171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung    private static final int CHILDREN_OUTLINE_FADE_IN_DURATION = 100;
95f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen
96f135c6c364e92cddb84c1b4a94ed535214b712a6Winson Chung    private static final int BACKGROUND_FADE_OUT_DURATION = 350;
979171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung    private static final int BACKGROUND_FADE_IN_DURATION = 350;
989171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung
999171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung    // These animators are used to fade the children's outlines
1009171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung    private ObjectAnimator mChildrenOutlineFadeInAnimation;
1019171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung    private ObjectAnimator mChildrenOutlineFadeOutAnimation;
1029171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung    private float mChildrenOutlineAlpha = 0;
1039171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung
1049171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung    // These properties refer to the background protection gradient used for AllApps and Customize
105e0f5a61a1f105216b0067124bacac69194c0ef70Michael Jurka    private ValueAnimator mBackgroundFadeInAnimation;
106e0f5a61a1f105216b0067124bacac69194c0ef70Michael Jurka    private ValueAnimator mBackgroundFadeOutAnimation;
1079171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung    private Drawable mBackground;
10825356e75ebae5d6e0be43f38d2c73b5cb59d05f2Michael Jurka    boolean mDrawBackground = true;
109f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen    private float mBackgroundAlpha = 0;
11068d739365bf650fe7fecf99cd3bfe63a0d41bd12Adam Cohen    private float mOverScrollMaxBackgroundAlpha = 0.0f;
111e0f66b546994a9bdee452851c17a148db02ec300Adam Cohen    private int mOverScrollPageIndex = -1;
112f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen
1138f573952b8729b4319043ae0908997ecd2d68951Dianne Hackborn    private final WallpaperManager mWallpaperManager;
1149c6fbed48783dacd9bc6b4ec5f2cc8e59ec7ee37Michael Jurka    private IBinder mWindowToken;
115aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung
1160142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka    private int mDefaultPage;
11731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
11831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    /**
11931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * CellInfo for the cell that is currently being dragged
12031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     */
12131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    private CellLayout.CellInfo mDragInfo;
122aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung
12370864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey    /**
12470864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey     * Target drop area calculated during last acceptDrop call.
12570864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey     */
126c0dcf597084d00e4c23a7fea5fd0738f6c095a6bAdam Cohen    private int[] mTargetCell = new int[2];
12731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
1286569f2c80e179c2f8ed73dae6b01d971ec20f005Patrick Dubroy    /**
1296569f2c80e179c2f8ed73dae6b01d971ec20f005Patrick Dubroy     * The CellLayout that is currently being dragged over
1306569f2c80e179c2f8ed73dae6b01d971ec20f005Patrick Dubroy     */
1316569f2c80e179c2f8ed73dae6b01d971ec20f005Patrick Dubroy    private CellLayout mDragTargetLayout = null;
1326569f2c80e179c2f8ed73dae6b01d971ec20f005Patrick Dubroy
13331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    private Launcher mLauncher;
1340589f0f66ce498512c6ee47482c649d88294c9d0Joe Onorato    private IconCache mIconCache;
13500acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato    private DragController mDragController;
136aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung
1374516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka    // These are temporary variables to prevent having to allocate a new object just to
1384516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka    // return an (x, y) value from helper functions. Do NOT use them to maintain other state.
13931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    private int[] mTempCell = new int[2];
14070864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey    private int[] mTempEstimate = new int[2];
141e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen    private float[] mDragViewVisualCenter = new float[2];
142a63c452f5bd491ba9b28c332ccedc6c6c7e2f3ccMichael Jurka    private float[] mTempDragCoordinates = new float[2];
1434516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka    private float[] mTempCellLayoutCenterCoordinates = new float[2];
144a63c452f5bd491ba9b28c332ccedc6c6c7e2f3ccMichael Jurka    private float[] mTempDragBottomRightCoordinates = new float[2];
1450280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka    private Matrix mTempInverseMatrix = new Matrix();
14631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
147c2f7f4794867cd1b3e97fd0f379ad8ad15958a6cMichael Jurka    private SpringLoadedDragController mSpringLoadedDragController;
148b26f3d6a8c62e7c1a603b6c7979375d8dd4f20d4Winson Chung    private float mSpringLoadedShrinkFactor;
149d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka
150d22015cd37ea6ef53762eca5be57daca123ff607Adam Cohen    private static final int DEFAULT_CELL_COUNT_X = 4;
151d22015cd37ea6ef53762eca5be57daca123ff607Adam Cohen    private static final int DEFAULT_CELL_COUNT_Y = 4;
15231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
1531262e369484ce7f2565655ed80e6299232c70bd7Patrick Dubroy    // State variable that indicates whether the pages are small (ie when you're
154dee0589388ba0f6373912e18bf86243282fb3b9bMichael Jurka    // in all apps or customize mode)
155d74c984fcc61f86160476a2543faff715e3ee2fdMichael Jurka
156d74c984fcc61f86160476a2543faff715e3ee2fdMichael Jurka    enum State { NORMAL, SPRING_LOADED, SMALL };
157d74c984fcc61f86160476a2543faff715e3ee2fdMichael Jurka    private State mState;
158d74c984fcc61f86160476a2543faff715e3ee2fdMichael Jurka    private boolean mIsSwitchingState = false;
159d74c984fcc61f86160476a2543faff715e3ee2fdMichael Jurka
160d74c984fcc61f86160476a2543faff715e3ee2fdMichael Jurka    private boolean mSwitchStateAfterFirstLayout = false;
161d74c984fcc61f86160476a2543faff715e3ee2fdMichael Jurka    private State mStateAfterFirstLayout;
162d74c984fcc61f86160476a2543faff715e3ee2fdMichael Jurka
163d74c984fcc61f86160476a2543faff715e3ee2fdMichael Jurka    private AnimatorSet mAnimator;
164bea15195346bab3c52b0156e92f2b71f0811b210Michael Jurka    private AnimatorListener mShrinkAnimationListener;
165b8e14479da7209ca811a753b3256fe4a0b49a873Michael Jurka    private AnimatorListener mUnshrinkAnimationListener;
166de1af7661548692d370518528ff91c7422b9c8aeWinson Chung    // Working around the face that cancelled animations may not actually be cancelled if they
167de1af7661548692d370518528ff91c7422b9c8aeWinson Chung    // are cancelled before starting
168de1af7661548692d370518528ff91c7422b9c8aeWinson Chung    private boolean mShrinkAnimationEnabled;
169de1af7661548692d370518528ff91c7422b9c8aeWinson Chung    private boolean mUnshrinkAnimationEnabled;
170d74c984fcc61f86160476a2543faff715e3ee2fdMichael Jurka
171d74c984fcc61f86160476a2543faff715e3ee2fdMichael Jurka    boolean mAnimatingViewIntoPlace = false;
172d74c984fcc61f86160476a2543faff715e3ee2fdMichael Jurka    boolean mIsDragOccuring = false;
173d74c984fcc61f86160476a2543faff715e3ee2fdMichael Jurka    boolean mChildrenLayersEnabled = true;
174dee0589388ba0f6373912e18bf86243282fb3b9bMichael Jurka
17554fa3b95557c283976e8c1aa8a157b460b0b4513Patrick Dubroy    /** Is the user is dragging an item near the edge of a page? */
1761262e369484ce7f2565655ed80e6299232c70bd7Patrick Dubroy    private boolean mInScrollArea = false;
1771262e369484ce7f2565655ed80e6299232c70bd7Patrick Dubroy
1788e58e916061cbe2623697efac0924f2aa3753a92Patrick Dubroy    private final HolographicOutlineHelper mOutlineHelper = new HolographicOutlineHelper();
1794be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato    private Bitmap mDragOutline = null;
1808e58e916061cbe2623697efac0924f2aa3753a92Patrick Dubroy    private final Rect mTempRect = new Rect();
1818e58e916061cbe2623697efac0924f2aa3753a92Patrick Dubroy    private final int[] mTempXY = new int[2];
1824be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato
183a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung    // Paint used to draw external drop outline
184a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung    private final Paint mExternalDragOutlinePaint = new Paint();
185a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung
1866b879f0a5885274a85333531e091283405d490ccAdam Lesinski    // Camera and Matrix used to determine the final position of a neighboring CellLayout
1876b879f0a5885274a85333531e091283405d490ccAdam Lesinski    private final Matrix mMatrix = new Matrix();
1886b879f0a5885274a85333531e091283405d490ccAdam Lesinski    private final Camera mCamera = new Camera();
1896b879f0a5885274a85333531e091283405d490ccAdam Lesinski    private final float mTempFloat2[] = new float[2];
1906b879f0a5885274a85333531e091283405d490ccAdam Lesinski
191c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka    enum WallpaperVerticalOffset { TOP, MIDDLE, BOTTOM };
192c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka    int mWallpaperWidth;
193c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka    int mWallpaperHeight;
194ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka    WallpaperOffsetInterpolator mWallpaperOffset;
195c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka    boolean mUpdateWallpaperOffsetImmediately = false;
196ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka    boolean mSyncWallpaperOffsetWithScroll = true;
19726976d9b53161f80faf822d482ac771b8621cf31Adam Cohen    private Runnable mDelayedResizeRunnable;
198c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka
19919072da7441e07d5e90026d9e9e1b38f11245e44Adam Cohen    // Variables relating to the creation of user folders by hovering shortcuts over shortcuts
200c0dcf597084d00e4c23a7fea5fd0738f6c095a6bAdam Cohen    private static final int FOLDER_CREATION_TIMEOUT = 250;
20119072da7441e07d5e90026d9e9e1b38f11245e44Adam Cohen    private final Alarm mFolderCreationAlarm = new Alarm();
20219072da7441e07d5e90026d9e9e1b38f11245e44Adam Cohen    private FolderRingAnimator mDragFolderRingAnimator = null;
20319072da7441e07d5e90026d9e9e1b38f11245e44Adam Cohen    private View mLastDragOverView = null;
20419072da7441e07d5e90026d9e9e1b38f11245e44Adam Cohen    private boolean mCreateUserFolderOnDrop = false;
205073a46ff635d089cbcb15d939d1de42dd2b86c97Adam Cohen
206f8d2823d885ba682140aee1ae0504c1c5e67a24bAdam Cohen    // Variables relating to touch disambiguation (scrolling workspace vs. scrolling a widget)
207f8d2823d885ba682140aee1ae0504c1c5e67a24bAdam Cohen    private float mXDown;
208f8d2823d885ba682140aee1ae0504c1c5e67a24bAdam Cohen    private float mYDown;
209f8d2823d885ba682140aee1ae0504c1c5e67a24bAdam Cohen    final static float START_DAMPING_TOUCH_SLOP_ANGLE = (float) Math.PI / 6;
210f8d2823d885ba682140aee1ae0504c1c5e67a24bAdam Cohen    final static float MAX_SWIPE_ANGLE = (float) Math.PI / 3;
211f8d2823d885ba682140aee1ae0504c1c5e67a24bAdam Cohen    final static float TOUCH_SLOP_DAMPING_FACTOR = 4;
212f8d2823d885ba682140aee1ae0504c1c5e67a24bAdam Cohen
2134b285c5a60028f7c9ce39cfb318a730d0ae95c27Adam Cohen    // These variables are used for storing the initial and final values during workspace animations
2144b285c5a60028f7c9ce39cfb318a730d0ae95c27Adam Cohen    private float mCurrentScaleX;
2154b285c5a60028f7c9ce39cfb318a730d0ae95c27Adam Cohen    private float mCurrentScaleY;
2164b285c5a60028f7c9ce39cfb318a730d0ae95c27Adam Cohen    private float mCurrentRotationY;
2174b285c5a60028f7c9ce39cfb318a730d0ae95c27Adam Cohen    private float mCurrentTranslationX;
2184b285c5a60028f7c9ce39cfb318a730d0ae95c27Adam Cohen    private float mCurrentTranslationY;
2194b285c5a60028f7c9ce39cfb318a730d0ae95c27Adam Cohen    private float[] mOldTranslationXs;
2204b285c5a60028f7c9ce39cfb318a730d0ae95c27Adam Cohen    private float[] mOldTranslationYs;
2214b285c5a60028f7c9ce39cfb318a730d0ae95c27Adam Cohen    private float[] mOldScaleXs;
2224b285c5a60028f7c9ce39cfb318a730d0ae95c27Adam Cohen    private float[] mOldScaleYs;
2234b285c5a60028f7c9ce39cfb318a730d0ae95c27Adam Cohen    private float[] mOldBackgroundAlphas;
2244b285c5a60028f7c9ce39cfb318a730d0ae95c27Adam Cohen    private float[] mOldBackgroundAlphaMultipliers;
2254b285c5a60028f7c9ce39cfb318a730d0ae95c27Adam Cohen    private float[] mOldAlphas;
2264b285c5a60028f7c9ce39cfb318a730d0ae95c27Adam Cohen    private float[] mOldRotationYs;
2274b285c5a60028f7c9ce39cfb318a730d0ae95c27Adam Cohen    private float[] mNewTranslationXs;
2284b285c5a60028f7c9ce39cfb318a730d0ae95c27Adam Cohen    private float[] mNewTranslationYs;
2294b285c5a60028f7c9ce39cfb318a730d0ae95c27Adam Cohen    private float[] mNewScaleXs;
2304b285c5a60028f7c9ce39cfb318a730d0ae95c27Adam Cohen    private float[] mNewScaleYs;
2314b285c5a60028f7c9ce39cfb318a730d0ae95c27Adam Cohen    private float[] mNewBackgroundAlphas;
2324b285c5a60028f7c9ce39cfb318a730d0ae95c27Adam Cohen    private float[] mNewBackgroundAlphaMultipliers;
2334b285c5a60028f7c9ce39cfb318a730d0ae95c27Adam Cohen    private float[] mNewAlphas;
2344b285c5a60028f7c9ce39cfb318a730d0ae95c27Adam Cohen    private float[] mNewRotationYs;
2354b285c5a60028f7c9ce39cfb318a730d0ae95c27Adam Cohen    private float mTransitionProgress;
2364b285c5a60028f7c9ce39cfb318a730d0ae95c27Adam Cohen
23731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    /**
23831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * Used to inflate the Workspace from XML.
23931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     *
24031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * @param context The application's context.
2410142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka     * @param attrs The attributes set containing the Workspace's customization values.
24231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     */
24331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    public Workspace(Context context, AttributeSet attrs) {
24431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        this(context, attrs, 0);
24531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
24631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
24731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    /**
24831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * Used to inflate the Workspace from XML.
24931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     *
25031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * @param context The application's context.
2510142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka     * @param attrs The attributes set containing the Workspace's customization values.
25231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * @param defStyle Unused.
25331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     */
25431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    public Workspace(Context context, AttributeSet attrs, int defStyle) {
25531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        super(context, attrs, defStyle);
2560142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka        mContentIsRefreshable = false;
2575f1c509d5ad1954a7e38e77db4d5f27c7345fd39Michael Jurka
258f0ea4d3378be7b962c8e0bce2392df5e82491fb8Winson Chung        // With workspace, data is available straight from the get-go
259f0ea4d3378be7b962c8e0bce2392df5e82491fb8Winson Chung        setDataIsReady();
260f0ea4d3378be7b962c8e0bce2392df5e82491fb8Winson Chung
261a2eb17095dcffa75c1e9681fdc318fe6e0564321Michael Jurka        if (!LauncherApplication.isScreenLarge()) {
2625f1c509d5ad1954a7e38e77db4d5f27c7345fd39Michael Jurka            mFadeInAdjacentScreens = false;
2635f1c509d5ad1954a7e38e77db4d5f27c7345fd39Michael Jurka        }
26431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
2658f573952b8729b4319043ae0908997ecd2d68951Dianne Hackborn        mWallpaperManager = WallpaperManager.getInstance(context);
266aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung
267f6440da9d02f3ee1553db4bd431a202eb1d1a9ddMichael Jurka        int cellCountX = DEFAULT_CELL_COUNT_X;
268f6440da9d02f3ee1553db4bd431a202eb1d1a9ddMichael Jurka        int cellCountY = DEFAULT_CELL_COUNT_Y;
269f6440da9d02f3ee1553db4bd431a202eb1d1a9ddMichael Jurka
270aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung        TypedArray a = context.obtainStyledAttributes(attrs,
271aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung                R.styleable.Workspace, defStyle, 0);
272f6440da9d02f3ee1553db4bd431a202eb1d1a9ddMichael Jurka
273b26f3d6a8c62e7c1a603b6c7979375d8dd4f20d4Winson Chung        final Resources res = context.getResources();
274f6440da9d02f3ee1553db4bd431a202eb1d1a9ddMichael Jurka        if (LauncherApplication.isScreenLarge()) {
275f61249b79948a4b37b38104cbe81c98086d1f30bMichael Jurka            // Determine number of rows/columns dynamically
276f61249b79948a4b37b38104cbe81c98086d1f30bMichael Jurka            // TODO: This code currently fails on tablets with an aspect ratio < 1.3.
277f61249b79948a4b37b38104cbe81c98086d1f30bMichael Jurka            // Around that ratio we should make cells the same size in portrait and
278f61249b79948a4b37b38104cbe81c98086d1f30bMichael Jurka            // landscape
279f6440da9d02f3ee1553db4bd431a202eb1d1a9ddMichael Jurka            TypedArray actionBarSizeTypedArray =
280f6440da9d02f3ee1553db4bd431a202eb1d1a9ddMichael Jurka                context.obtainStyledAttributes(new int[] { android.R.attr.actionBarSize });
281f61249b79948a4b37b38104cbe81c98086d1f30bMichael Jurka            final float actionBarHeight = actionBarSizeTypedArray.getDimension(0, 0f);
282f61249b79948a4b37b38104cbe81c98086d1f30bMichael Jurka            final float systemBarHeight = res.getDimension(R.dimen.status_bar_height);
283f61249b79948a4b37b38104cbe81c98086d1f30bMichael Jurka            final float smallestScreenDim = res.getConfiguration().smallestScreenWidthDp;
284f6440da9d02f3ee1553db4bd431a202eb1d1a9ddMichael Jurka
285f61249b79948a4b37b38104cbe81c98086d1f30bMichael Jurka            cellCountX = 1;
286f61249b79948a4b37b38104cbe81c98086d1f30bMichael Jurka            while (CellLayout.widthInPortrait(res, cellCountX + 1) <= smallestScreenDim) {
287f61249b79948a4b37b38104cbe81c98086d1f30bMichael Jurka                cellCountX++;
288f6440da9d02f3ee1553db4bd431a202eb1d1a9ddMichael Jurka            }
289f6440da9d02f3ee1553db4bd431a202eb1d1a9ddMichael Jurka
290f61249b79948a4b37b38104cbe81c98086d1f30bMichael Jurka            cellCountY = 1;
291f61249b79948a4b37b38104cbe81c98086d1f30bMichael Jurka            while (actionBarHeight + CellLayout.heightInLandscape(res, cellCountY + 1)
292f61249b79948a4b37b38104cbe81c98086d1f30bMichael Jurka                <= smallestScreenDim - systemBarHeight) {
293f61249b79948a4b37b38104cbe81c98086d1f30bMichael Jurka                cellCountY++;
294f6440da9d02f3ee1553db4bd431a202eb1d1a9ddMichael Jurka            }
295f6440da9d02f3ee1553db4bd431a202eb1d1a9ddMichael Jurka        }
296f6440da9d02f3ee1553db4bd431a202eb1d1a9ddMichael Jurka
297b26f3d6a8c62e7c1a603b6c7979375d8dd4f20d4Winson Chung        mSpringLoadedShrinkFactor =
298b26f3d6a8c62e7c1a603b6c7979375d8dd4f20d4Winson Chung            res.getInteger(R.integer.config_workspaceSpringLoadShrinkPercentage) / 100.0f;
299b26f3d6a8c62e7c1a603b6c7979375d8dd4f20d4Winson Chung
300f6440da9d02f3ee1553db4bd431a202eb1d1a9ddMichael Jurka        // if the value is manually specified, use that instead
301f6440da9d02f3ee1553db4bd431a202eb1d1a9ddMichael Jurka        cellCountX = a.getInt(R.styleable.Workspace_cellCountX, cellCountX);
302f6440da9d02f3ee1553db4bd431a202eb1d1a9ddMichael Jurka        cellCountY = a.getInt(R.styleable.Workspace_cellCountY, cellCountY);
3030142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka        mDefaultPage = a.getInt(R.styleable.Workspace_defaultScreen, 1);
30431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        a.recycle();
30531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
306d22015cd37ea6ef53762eca5be57daca123ff607Adam Cohen        LauncherModel.updateWorkspaceLayoutCells(cellCountX, cellCountY);
3070d44e9482b95d8f163b28bf20131c4349185b589Joe Onorato        setHapticFeedbackEnabled(false);
3080142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka
30931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        initWorkspace();
310c35afb2c9df8cc56c77bf21ce2eaa213f6f31251Winson Chung
311c35afb2c9df8cc56c77bf21ce2eaa213f6f31251Winson Chung        // Disable multitouch across the workspace/all apps/customize tray
312c35afb2c9df8cc56c77bf21ce2eaa213f6f31251Winson Chung        setMotionEventSplittingEnabled(true);
31331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
31431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
315d74c984fcc61f86160476a2543faff715e3ee2fdMichael Jurka    public void onDragStart(DragSource source, Object info, int dragAction) {
316d74c984fcc61f86160476a2543faff715e3ee2fdMichael Jurka        mIsDragOccuring = true;
317d74c984fcc61f86160476a2543faff715e3ee2fdMichael Jurka        updateChildrenLayersEnabled();
31895383fe41dacc45c2aa97e7f47bafebb5b7655d8Adam Cohen        mLauncher.lockScreenOrientation();
319d74c984fcc61f86160476a2543faff715e3ee2fdMichael Jurka    }
320d74c984fcc61f86160476a2543faff715e3ee2fdMichael Jurka
321d74c984fcc61f86160476a2543faff715e3ee2fdMichael Jurka    public void onDragEnd() {
322d74c984fcc61f86160476a2543faff715e3ee2fdMichael Jurka        mIsDragOccuring = false;
323d74c984fcc61f86160476a2543faff715e3ee2fdMichael Jurka        updateChildrenLayersEnabled();
32495383fe41dacc45c2aa97e7f47bafebb5b7655d8Adam Cohen        mLauncher.unlockScreenOrientation();
325d74c984fcc61f86160476a2543faff715e3ee2fdMichael Jurka    }
326d74c984fcc61f86160476a2543faff715e3ee2fdMichael Jurka
32731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    /**
32831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * Initializes various states for this workspace.
32931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     */
3300142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka    protected void initWorkspace() {
3310589f0f66ce498512c6ee47482c649d88294c9d0Joe Onorato        Context context = getContext();
3320142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka        mCurrentPage = mDefaultPage;
3330142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka        Launcher.setScreen(mCurrentPage);
3340589f0f66ce498512c6ee47482c649d88294c9d0Joe Onorato        LauncherApplication app = (LauncherApplication)context.getApplicationContext();
3350589f0f66ce498512c6ee47482c649d88294c9d0Joe Onorato        mIconCache = app.getIconCache();
336a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung        mExternalDragOutlinePaint.setAntiAlias(true);
337cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy        setWillNotDraw(false);
33831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
339b4b7fa7c0383b6af58d73d3e024b91d586148cf8Winson Chung        try {
340b4b7fa7c0383b6af58d73d3e024b91d586148cf8Winson Chung            final Resources res = getResources();
341fd3385fe9e0f034b04f99d5d59a58d74fe040da4Winson Chung            mBackground = res.getDrawable(R.drawable.apps_customize_bg);
342b4b7fa7c0383b6af58d73d3e024b91d586148cf8Winson Chung        } catch (Resources.NotFoundException e) {
343b4b7fa7c0383b6af58d73d3e024b91d586148cf8Winson Chung            // In this case, we will skip drawing background protection
344b4b7fa7c0383b6af58d73d3e024b91d586148cf8Winson Chung        }
3459171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung
3468edd75c8bb0729a10cb39f614183e3e9ae4288e8Michael Jurka        mUnshrinkAnimationListener = new AnimatorListenerAdapter() {
3473c4c20fbe682cb4b3ef94f09afe0af09171583f3Michael Jurka            @Override
348c0e8fcae492730210b2b8b6d5bb3d65636bad245Michael Jurka            public void onAnimationStart(Animator animation) {
349d74c984fcc61f86160476a2543faff715e3ee2fdMichael Jurka                mIsSwitchingState = true;
350c0e8fcae492730210b2b8b6d5bb3d65636bad245Michael Jurka            }
3510bb8563b1381d92b0d7dbb5b0f814ad656c2f9bdMichael Jurka
3523c4c20fbe682cb4b3ef94f09afe0af09171583f3Michael Jurka            @Override
3538edd75c8bb0729a10cb39f614183e3e9ae4288e8Michael Jurka            public void onAnimationEnd(Animator animation) {
354d74c984fcc61f86160476a2543faff715e3ee2fdMichael Jurka                mIsSwitchingState = false;
355ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka                mSyncWallpaperOffsetWithScroll = true;
356ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka                mWallpaperOffset.setOverrideHorizontalCatchupConstant(false);
35760b7c53ccc6384b65aaca77d97794e8f09e8cfc8Patrick Dubroy                mAnimator = null;
358d74c984fcc61f86160476a2543faff715e3ee2fdMichael Jurka                updateChildrenLayersEnabled();
359bea15195346bab3c52b0156e92f2b71f0811b210Michael Jurka            }
360bea15195346bab3c52b0156e92f2b71f0811b210Michael Jurka        };
361bea15195346bab3c52b0156e92f2b71f0811b210Michael Jurka        mShrinkAnimationListener = new AnimatorListenerAdapter() {
362bea15195346bab3c52b0156e92f2b71f0811b210Michael Jurka            @Override
363ce7e05fbe8abd5f25ec47e0e05b5cc76ceb39d2eMichael Jurka            public void onAnimationStart(Animator animation) {
364d74c984fcc61f86160476a2543faff715e3ee2fdMichael Jurka                mIsSwitchingState = true;
365ce7e05fbe8abd5f25ec47e0e05b5cc76ceb39d2eMichael Jurka            }
366ce7e05fbe8abd5f25ec47e0e05b5cc76ceb39d2eMichael Jurka            @Override
367bea15195346bab3c52b0156e92f2b71f0811b210Michael Jurka            public void onAnimationEnd(Animator animation) {
368d74c984fcc61f86160476a2543faff715e3ee2fdMichael Jurka                mIsSwitchingState = false;
369ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka                mWallpaperOffset.setOverrideHorizontalCatchupConstant(false);
37060b7c53ccc6384b65aaca77d97794e8f09e8cfc8Patrick Dubroy                mAnimator = null;
371dee0589388ba0f6373912e18bf86243282fb3b9bMichael Jurka            }
372dee0589388ba0f6373912e18bf86243282fb3b9bMichael Jurka        };
3730142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka        mSnapVelocity = 600;
374ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        mWallpaperOffset = new WallpaperOffsetInterpolator();
37531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
37631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
37731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    @Override
378f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen    protected int getScrollMode() {
379b26f3d6a8c62e7c1a603b6c7979375d8dd4f20d4Winson Chung        return SmoothPagedView.X_LARGE_MODE;
380f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen    }
381f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen
382e5fb0f27bca7afb996258a7163c76ca7390d7bffMichael Jurka    private void onAddView(View child) {
38331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        if (!(child instanceof CellLayout)) {
38431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            throw new IllegalArgumentException("A Workspace can only have CellLayout children.");
38531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
3862801cafe62653131fdc9da402e5c44e5ffd0bf47Adam Cohen        CellLayout cl = ((CellLayout) child);
3872801cafe62653131fdc9da402e5c44e5ffd0bf47Adam Cohen        cl.setOnInterceptTouchListener(this);
3882801cafe62653131fdc9da402e5c44e5ffd0bf47Adam Cohen        cl.setClickable(true);
3892801cafe62653131fdc9da402e5c44e5ffd0bf47Adam Cohen        cl.enableHardwareLayers();
390e5fb0f27bca7afb996258a7163c76ca7390d7bffMichael Jurka    }
3912801cafe62653131fdc9da402e5c44e5ffd0bf47Adam Cohen
392e5fb0f27bca7afb996258a7163c76ca7390d7bffMichael Jurka    @Override
393e5fb0f27bca7afb996258a7163c76ca7390d7bffMichael Jurka    public void addView(View child, int index, LayoutParams params) {
394e5fb0f27bca7afb996258a7163c76ca7390d7bffMichael Jurka        onAddView(child);
39531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        super.addView(child, index, params);
39631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
39731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
39831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    @Override
39931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    public void addView(View child) {
400e5fb0f27bca7afb996258a7163c76ca7390d7bffMichael Jurka        onAddView(child);
40131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        super.addView(child);
40231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
40331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
40431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    @Override
40531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    public void addView(View child, int index) {
406e5fb0f27bca7afb996258a7163c76ca7390d7bffMichael Jurka        onAddView(child);
40731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        super.addView(child, index);
40831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
40931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
41031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    @Override
41131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    public void addView(View child, int width, int height) {
412e5fb0f27bca7afb996258a7163c76ca7390d7bffMichael Jurka        onAddView(child);
41331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        super.addView(child, width, height);
41431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
41531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
41631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    @Override
41731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    public void addView(View child, LayoutParams params) {
418e5fb0f27bca7afb996258a7163c76ca7390d7bffMichael Jurka        onAddView(child);
41931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        super.addView(child, params);
42031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
42131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
42231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    /**
42331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * @return The open folder on the current screen, or null if there is none
42431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     */
42531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    Folder getOpenFolder() {
426716b51e030f9c6ed34af2b947760e46a280c65a6Adam Cohen        DragLayer dragLayer = mLauncher.getDragLayer();
4278e776a62c5cc60737f5cdbbeacfec5f958112fa7Adam Cohen        int count = dragLayer.getChildCount();
42831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        for (int i = 0; i < count; i++) {
4298e776a62c5cc60737f5cdbbeacfec5f958112fa7Adam Cohen            View child = dragLayer.getChildAt(i);
430aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung            if (child instanceof Folder) {
431aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung                Folder folder = (Folder) child;
432aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung                if (folder.getInfo().opened)
433aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung                    return folder;
43431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            }
43531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
43631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        return null;
43731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
43831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
439a0aa0121b91fde17e427ab2763ce312e64cf5d33Patrick Dubroy    boolean isTouchActive() {
440a0aa0121b91fde17e427ab2763ce312e64cf5d33Patrick Dubroy        return mTouchState != TOUCH_STATE_REST;
44131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
44231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
44331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    /**
44431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * Adds the specified child in the specified screen. The position and dimension of
44531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * the child are defined by x, y, spanX and spanY.
44631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     *
44731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * @param child The child to add in one of the workspace's screens.
44831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * @param screen The screen in which to add the child.
44931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * @param x The X position of the child in the screen's grid.
45031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * @param y The Y position of the child in the screen's grid.
45131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * @param spanX The number of cells spanned horizontally by the child.
45231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * @param spanY The number of cells spanned vertically by the child.
45331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     */
4543d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung    void addInScreen(View child, long container, int screen, int x, int y, int spanX, int spanY) {
4553d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung        addInScreen(child, container, screen, x, y, spanX, spanY, false);
456aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung    }
457aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung
45831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    /**
45931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * Adds the specified child in the specified screen. The position and dimension of
46031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * the child are defined by x, y, spanX and spanY.
46131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     *
46231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * @param child The child to add in one of the workspace's screens.
46331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * @param screen The screen in which to add the child.
46431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * @param x The X position of the child in the screen's grid.
46531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * @param y The Y position of the child in the screen's grid.
46631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * @param spanX The number of cells spanned horizontally by the child.
46731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * @param spanY The number of cells spanned vertically by the child.
46831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * @param insert When true, the child is inserted at the beginning of the children list.
46931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     */
4703d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung    void addInScreen(View child, long container, int screen, int x, int y, int spanX, int spanY,
4713d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung            boolean insert) {
4723d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung        if (container == LauncherSettings.Favorites.CONTAINER_DESKTOP) {
4733d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung            if (screen < 0 || screen >= getChildCount()) {
4743d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung                Log.e(TAG, "The screen must be >= 0 and < " + getChildCount()
4753d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung                    + " (was " + screen + "); skipping child");
4763d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung                return;
4773d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung            }
4783d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung        }
4793d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung
4803d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung        final CellLayout layout;
4813d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung        if (container == LauncherSettings.Favorites.CONTAINER_HOTSEAT) {
4823d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung            layout = mLauncher.getHotseat().getLayout();
4834d279d94ade1c0d455404312b3c9cfde0078c547Winson Chung            child.setOnKeyListener(null);
4843d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung
4853d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung            if (screen < 0) {
4863d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung                screen = mLauncher.getHotseat().getOrderInHotseat(x, y);
4873d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung            } else {
4883d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung                // Note: We do this to ensure that the hotseat is always laid out in the orientation
4893d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung                // of the hotseat in order regardless of which orientation they were added
4903d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung                x = mLauncher.getHotseat().getCellXFromOrder(screen);
4913d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung                y = mLauncher.getHotseat().getCellYFromOrder(screen);
4923d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung            }
4933d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung        } else {
4943d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung            layout = (CellLayout) getChildAt(screen);
4954d279d94ade1c0d455404312b3c9cfde0078c547Winson Chung            child.setOnKeyListener(new BubbleTextViewKeyEventListener());
49631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
49731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
49831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        CellLayout.LayoutParams lp = (CellLayout.LayoutParams) child.getLayoutParams();
49931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        if (lp == null) {
50031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            lp = new CellLayout.LayoutParams(x, y, spanX, spanY);
50131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        } else {
50231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            lp.cellX = x;
50331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            lp.cellY = y;
50431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            lp.cellHSpan = spanX;
50531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            lp.cellVSpan = spanY;
50631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
507aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung
5087f4eabe3709a72b416569136e4a095431c493c8bAdam Cohen        if (spanX < 0 && spanY < 0) {
5097f4eabe3709a72b416569136e4a095431c493c8bAdam Cohen            lp.isLockedToGrid = false;
5107f4eabe3709a72b416569136e4a095431c493c8bAdam Cohen        }
5117f4eabe3709a72b416569136e4a095431c493c8bAdam Cohen
5126569f2c80e179c2f8ed73dae6b01d971ec20f005Patrick Dubroy        // Get the canonical child id to uniquely represent this view in this screen
5133d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung        int childId = LauncherModel.getCellLayoutChildId(container, screen, x, y, spanX, spanY);
514f3ca3ab6958b104cbf2c2fa04add97d372a94d1cMichael Jurka        boolean markCellsAsOccupied = !(child instanceof Folder);
5153d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung        if (!layout.addViewToCellLayout(child, insert ? 0 : -1, childId, lp, markCellsAsOccupied)) {
516aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung            // TODO: This branch occurs when the workspace is adding views
517aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung            // outside of the defined grid
5186569f2c80e179c2f8ed73dae6b01d971ec20f005Patrick Dubroy            // maybe we should be deleting these items from the LauncherModel?
519aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung            Log.w(TAG, "Failed to add to item at (" + lp.cellX + "," + lp.cellY + ") to CellLayout");
520aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung        }
521aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung
52231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        if (!(child instanceof Folder)) {
5230d44e9482b95d8f163b28bf20131c4349185b589Joe Onorato            child.setHapticFeedbackEnabled(false);
52431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            child.setOnLongClickListener(mLongClickListener);
52531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
52600acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato        if (child instanceof DropTarget) {
527aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung            mDragController.addDropTarget((DropTarget) child);
52800acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato        }
52931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
53031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
531d0ce1ec2e21ce3bb0ba3549a01d1d06b440a8e45Patrick Dubroy    /**
532d0ce1ec2e21ce3bb0ba3549a01d1d06b440a8e45Patrick Dubroy     * Check if the point (x, y) hits a given page.
533d0ce1ec2e21ce3bb0ba3549a01d1d06b440a8e45Patrick Dubroy     */
534d0ce1ec2e21ce3bb0ba3549a01d1d06b440a8e45Patrick Dubroy    private boolean hitsPage(int index, float x, float y) {
535d0ce1ec2e21ce3bb0ba3549a01d1d06b440a8e45Patrick Dubroy        final View page = getChildAt(index);
536d0ce1ec2e21ce3bb0ba3549a01d1d06b440a8e45Patrick Dubroy        if (page != null) {
537d0ce1ec2e21ce3bb0ba3549a01d1d06b440a8e45Patrick Dubroy            float[] localXY = { x, y };
538d0ce1ec2e21ce3bb0ba3549a01d1d06b440a8e45Patrick Dubroy            mapPointFromSelfToChild(page, localXY);
539d0ce1ec2e21ce3bb0ba3549a01d1d06b440a8e45Patrick Dubroy            return (localXY[0] >= 0 && localXY[0] < page.getWidth()
540d0ce1ec2e21ce3bb0ba3549a01d1d06b440a8e45Patrick Dubroy                    && localXY[1] >= 0 && localXY[1] < page.getHeight());
541d0ce1ec2e21ce3bb0ba3549a01d1d06b440a8e45Patrick Dubroy        }
542d0ce1ec2e21ce3bb0ba3549a01d1d06b440a8e45Patrick Dubroy        return false;
543d0ce1ec2e21ce3bb0ba3549a01d1d06b440a8e45Patrick Dubroy    }
544d0ce1ec2e21ce3bb0ba3549a01d1d06b440a8e45Patrick Dubroy
545d0ce1ec2e21ce3bb0ba3549a01d1d06b440a8e45Patrick Dubroy    @Override
546d0ce1ec2e21ce3bb0ba3549a01d1d06b440a8e45Patrick Dubroy    protected boolean hitsPreviousPage(float x, float y) {
547d0ce1ec2e21ce3bb0ba3549a01d1d06b440a8e45Patrick Dubroy        // mNextPage is set to INVALID_PAGE whenever we are stationary.
548d0ce1ec2e21ce3bb0ba3549a01d1d06b440a8e45Patrick Dubroy        // Calculating "next page" this way ensures that you scroll to whatever page you tap on
549d0ce1ec2e21ce3bb0ba3549a01d1d06b440a8e45Patrick Dubroy        final int current = (mNextPage == INVALID_PAGE) ? mCurrentPage : mNextPage;
550d0ce1ec2e21ce3bb0ba3549a01d1d06b440a8e45Patrick Dubroy        return hitsPage(current - 1, x, y);
551d0ce1ec2e21ce3bb0ba3549a01d1d06b440a8e45Patrick Dubroy    }
552d0ce1ec2e21ce3bb0ba3549a01d1d06b440a8e45Patrick Dubroy
553d0ce1ec2e21ce3bb0ba3549a01d1d06b440a8e45Patrick Dubroy    @Override
554d0ce1ec2e21ce3bb0ba3549a01d1d06b440a8e45Patrick Dubroy    protected boolean hitsNextPage(float x, float y) {
555d0ce1ec2e21ce3bb0ba3549a01d1d06b440a8e45Patrick Dubroy        // mNextPage is set to INVALID_PAGE whenever we are stationary.
556d0ce1ec2e21ce3bb0ba3549a01d1d06b440a8e45Patrick Dubroy        // Calculating "next page" this way ensures that you scroll to whatever page you tap on
557d0ce1ec2e21ce3bb0ba3549a01d1d06b440a8e45Patrick Dubroy        final int current = (mNextPage == INVALID_PAGE) ? mCurrentPage : mNextPage;
558d0ce1ec2e21ce3bb0ba3549a01d1d06b440a8e45Patrick Dubroy        return hitsPage(current + 1, x, y);
559d0ce1ec2e21ce3bb0ba3549a01d1d06b440a8e45Patrick Dubroy    }
560d0ce1ec2e21ce3bb0ba3549a01d1d06b440a8e45Patrick Dubroy
561e708c5249b26978057acb9370cbfb8f6f747f5b8Patrick Dubroy    /**
562e708c5249b26978057acb9370cbfb8f6f747f5b8Patrick Dubroy     * Called directly from a CellLayout (not by the framework), after we've been added as a
563e708c5249b26978057acb9370cbfb8f6f747f5b8Patrick Dubroy     * listener via setOnInterceptTouchEventListener(). This allows us to tell the CellLayout
564e708c5249b26978057acb9370cbfb8f6f747f5b8Patrick Dubroy     * that it should intercept touch events, which is not something that is normally supported.
565e708c5249b26978057acb9370cbfb8f6f747f5b8Patrick Dubroy     */
566e708c5249b26978057acb9370cbfb8f6f747f5b8Patrick Dubroy    @Override
567dee0589388ba0f6373912e18bf86243282fb3b9bMichael Jurka    public boolean onTouch(View v, MotionEvent event) {
568d74c984fcc61f86160476a2543faff715e3ee2fdMichael Jurka        return (isSmall() || mIsSwitchingState);
569e708c5249b26978057acb9370cbfb8f6f747f5b8Patrick Dubroy    }
570e708c5249b26978057acb9370cbfb8f6f747f5b8Patrick Dubroy
571fc53cd22c9a78708c78c85946443f23ec8c59502Adam Cohen    public boolean isSwitchingState() {
572fc53cd22c9a78708c78c85946443f23ec8c59502Adam Cohen        return mIsSwitchingState;
573fc53cd22c9a78708c78c85946443f23ec8c59502Adam Cohen    }
574fc53cd22c9a78708c78c85946443f23ec8c59502Adam Cohen
575ded9f8d8658d0b6601006c0a954cd3bf530e55c1Adam Cohen    protected void onWindowVisibilityChanged (int visibility) {
576ded9f8d8658d0b6601006c0a954cd3bf530e55c1Adam Cohen        mLauncher.onWindowVisibilityChanged(visibility);
577ded9f8d8658d0b6601006c0a954cd3bf530e55c1Adam Cohen    }
578ded9f8d8658d0b6601006c0a954cd3bf530e55c1Adam Cohen
5795f1c509d5ad1954a7e38e77db4d5f27c7345fd39Michael Jurka    @Override
5805f1c509d5ad1954a7e38e77db4d5f27c7345fd39Michael Jurka    public boolean dispatchUnhandledMove(View focused, int direction) {
581d74c984fcc61f86160476a2543faff715e3ee2fdMichael Jurka        if (isSmall() || mIsSwitchingState) {
5825f1c509d5ad1954a7e38e77db4d5f27c7345fd39Michael Jurka            // when the home screens are shrunken, shouldn't allow side-scrolling
5835f1c509d5ad1954a7e38e77db4d5f27c7345fd39Michael Jurka            return false;
5845f1c509d5ad1954a7e38e77db4d5f27c7345fd39Michael Jurka        }
5855f1c509d5ad1954a7e38e77db4d5f27c7345fd39Michael Jurka        return super.dispatchUnhandledMove(focused, direction);
5865f1c509d5ad1954a7e38e77db4d5f27c7345fd39Michael Jurka    }
5875f1c509d5ad1954a7e38e77db4d5f27c7345fd39Michael Jurka
5885f1c509d5ad1954a7e38e77db4d5f27c7345fd39Michael Jurka    @Override
5895f1c509d5ad1954a7e38e77db4d5f27c7345fd39Michael Jurka    public boolean onInterceptTouchEvent(MotionEvent ev) {
590f8d2823d885ba682140aee1ae0504c1c5e67a24bAdam Cohen        if (ev.getAction() == MotionEvent.ACTION_DOWN) {
591f8d2823d885ba682140aee1ae0504c1c5e67a24bAdam Cohen            mXDown = ev.getX();
592f8d2823d885ba682140aee1ae0504c1c5e67a24bAdam Cohen            mYDown = ev.getY();
593f8d2823d885ba682140aee1ae0504c1c5e67a24bAdam Cohen        }
594f8d2823d885ba682140aee1ae0504c1c5e67a24bAdam Cohen
5955f1c509d5ad1954a7e38e77db4d5f27c7345fd39Michael Jurka        return super.onInterceptTouchEvent(ev);
5965f1c509d5ad1954a7e38e77db4d5f27c7345fd39Michael Jurka    }
5975f1c509d5ad1954a7e38e77db4d5f27c7345fd39Michael Jurka
5981adf5391a3a3d215b226adf3702019c22a99e3b1Michael Jurka    @Override
5991adf5391a3a3d215b226adf3702019c22a99e3b1Michael Jurka    protected void determineScrollingStart(MotionEvent ev) {
600d74c984fcc61f86160476a2543faff715e3ee2fdMichael Jurka        if (!isSmall() && !mIsSwitchingState) {
60169c42da4d30f1cbba5fe1ac8960b4e305e14b807Adam Cohen            float deltaX = Math.abs(ev.getX() - mXDown);
60269c42da4d30f1cbba5fe1ac8960b4e305e14b807Adam Cohen            float deltaY = Math.abs(ev.getY() - mYDown);
603f8d2823d885ba682140aee1ae0504c1c5e67a24bAdam Cohen
60469c42da4d30f1cbba5fe1ac8960b4e305e14b807Adam Cohen            if (Float.compare(deltaX, 0f) == 0) return;
605f8d2823d885ba682140aee1ae0504c1c5e67a24bAdam Cohen
60669c42da4d30f1cbba5fe1ac8960b4e305e14b807Adam Cohen            float slope = deltaY / deltaX;
60769c42da4d30f1cbba5fe1ac8960b4e305e14b807Adam Cohen            float theta = (float) Math.atan(slope);
608f8d2823d885ba682140aee1ae0504c1c5e67a24bAdam Cohen
60969c42da4d30f1cbba5fe1ac8960b4e305e14b807Adam Cohen            if (deltaX > mTouchSlop || deltaY > mTouchSlop) {
61069c42da4d30f1cbba5fe1ac8960b4e305e14b807Adam Cohen                cancelCurrentPageLongPress();
61169c42da4d30f1cbba5fe1ac8960b4e305e14b807Adam Cohen            }
612f8d2823d885ba682140aee1ae0504c1c5e67a24bAdam Cohen
61369c42da4d30f1cbba5fe1ac8960b4e305e14b807Adam Cohen            if (theta > MAX_SWIPE_ANGLE) {
61469c42da4d30f1cbba5fe1ac8960b4e305e14b807Adam Cohen                // Above MAX_SWIPE_ANGLE, we don't want to ever start scrolling the workspace
61569c42da4d30f1cbba5fe1ac8960b4e305e14b807Adam Cohen                return;
61669c42da4d30f1cbba5fe1ac8960b4e305e14b807Adam Cohen            } else if (theta > START_DAMPING_TOUCH_SLOP_ANGLE) {
61769c42da4d30f1cbba5fe1ac8960b4e305e14b807Adam Cohen                // Above START_DAMPING_TOUCH_SLOP_ANGLE and below MAX_SWIPE_ANGLE, we want to
61869c42da4d30f1cbba5fe1ac8960b4e305e14b807Adam Cohen                // increase the touch slop to make it harder to begin scrolling the workspace. This
61969c42da4d30f1cbba5fe1ac8960b4e305e14b807Adam Cohen                // results in vertically scrolling widgets to more easily. The higher the angle, the
62069c42da4d30f1cbba5fe1ac8960b4e305e14b807Adam Cohen                // more we increase touch slop.
62169c42da4d30f1cbba5fe1ac8960b4e305e14b807Adam Cohen                theta -= START_DAMPING_TOUCH_SLOP_ANGLE;
62269c42da4d30f1cbba5fe1ac8960b4e305e14b807Adam Cohen                float extraRatio = (float)
62369c42da4d30f1cbba5fe1ac8960b4e305e14b807Adam Cohen                        Math.sqrt((theta / (MAX_SWIPE_ANGLE - START_DAMPING_TOUCH_SLOP_ANGLE)));
62469c42da4d30f1cbba5fe1ac8960b4e305e14b807Adam Cohen                super.determineScrollingStart(ev, 1 + TOUCH_SLOP_DAMPING_FACTOR * extraRatio);
62569c42da4d30f1cbba5fe1ac8960b4e305e14b807Adam Cohen            } else {
62669c42da4d30f1cbba5fe1ac8960b4e305e14b807Adam Cohen                // Below START_DAMPING_TOUCH_SLOP_ANGLE, we don't do anything special
62769c42da4d30f1cbba5fe1ac8960b4e305e14b807Adam Cohen                super.determineScrollingStart(ev);
62869c42da4d30f1cbba5fe1ac8960b4e305e14b807Adam Cohen            }
629f8d2823d885ba682140aee1ae0504c1c5e67a24bAdam Cohen        }
6301adf5391a3a3d215b226adf3702019c22a99e3b1Michael Jurka    }
6311adf5391a3a3d215b226adf3702019c22a99e3b1Michael Jurka
632007c69867d821ea2b271398577a8b3440b3a7046Winson Chung    @Override
633007c69867d821ea2b271398577a8b3440b3a7046Winson Chung    protected boolean isScrollingIndicatorEnabled() {
634d74c984fcc61f86160476a2543faff715e3ee2fdMichael Jurka        return mState != State.SPRING_LOADED;
635007c69867d821ea2b271398577a8b3440b3a7046Winson Chung    }
636007c69867d821ea2b271398577a8b3440b3a7046Winson Chung
6371262e369484ce7f2565655ed80e6299232c70bd7Patrick Dubroy    protected void onPageBeginMoving() {
638007c69867d821ea2b271398577a8b3440b3a7046Winson Chung        super.onPageBeginMoving();
639007c69867d821ea2b271398577a8b3440b3a7046Winson Chung
640d74c984fcc61f86160476a2543faff715e3ee2fdMichael Jurka        if (isHardwareAccelerated()) {
641d74c984fcc61f86160476a2543faff715e3ee2fdMichael Jurka            updateChildrenLayersEnabled();
6420142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka        } else {
643d74c984fcc61f86160476a2543faff715e3ee2fdMichael Jurka            if (mNextPage != INVALID_PAGE) {
644d74c984fcc61f86160476a2543faff715e3ee2fdMichael Jurka                // we're snapping to a particular screen
645d74c984fcc61f86160476a2543faff715e3ee2fdMichael Jurka                enableChildrenCache(mCurrentPage, mNextPage);
646d74c984fcc61f86160476a2543faff715e3ee2fdMichael Jurka            } else {
647d74c984fcc61f86160476a2543faff715e3ee2fdMichael Jurka                // this is when user is actively dragging a particular screen, they might
648d74c984fcc61f86160476a2543faff715e3ee2fdMichael Jurka                // swipe it either left or right (but we won't advance by more than one screen)
649d74c984fcc61f86160476a2543faff715e3ee2fdMichael Jurka                enableChildrenCache(mCurrentPage - 1, mCurrentPage + 1);
650d74c984fcc61f86160476a2543faff715e3ee2fdMichael Jurka            }
65131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
652007c69867d821ea2b271398577a8b3440b3a7046Winson Chung
653007c69867d821ea2b271398577a8b3440b3a7046Winson Chung        // Only show page outlines as we pan if we are on large screen
654007c69867d821ea2b271398577a8b3440b3a7046Winson Chung        if (LauncherApplication.isScreenLarge()) {
655007c69867d821ea2b271398577a8b3440b3a7046Winson Chung            showOutlines();
656007c69867d821ea2b271398577a8b3440b3a7046Winson Chung        }
65731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
65831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
6591262e369484ce7f2565655ed80e6299232c70bd7Patrick Dubroy    protected void onPageEndMoving() {
660007c69867d821ea2b271398577a8b3440b3a7046Winson Chung        super.onPageEndMoving();
661007c69867d821ea2b271398577a8b3440b3a7046Winson Chung
662d74c984fcc61f86160476a2543faff715e3ee2fdMichael Jurka        if (isHardwareAccelerated()) {
663d74c984fcc61f86160476a2543faff715e3ee2fdMichael Jurka            updateChildrenLayersEnabled();
664d74c984fcc61f86160476a2543faff715e3ee2fdMichael Jurka        } else {
665d74c984fcc61f86160476a2543faff715e3ee2fdMichael Jurka            clearChildrenCache();
666d74c984fcc61f86160476a2543faff715e3ee2fdMichael Jurka        }
667d74c984fcc61f86160476a2543faff715e3ee2fdMichael Jurka
6681262e369484ce7f2565655ed80e6299232c70bd7Patrick Dubroy        // Hide the outlines, as long as we're not dragging
6691262e369484ce7f2565655ed80e6299232c70bd7Patrick Dubroy        if (!mDragController.dragging()) {
670007c69867d821ea2b271398577a8b3440b3a7046Winson Chung            // Only hide page outlines as we pan if we are on large screen
671007c69867d821ea2b271398577a8b3440b3a7046Winson Chung            if (LauncherApplication.isScreenLarge()) {
672007c69867d821ea2b271398577a8b3440b3a7046Winson Chung                hideOutlines();
673007c69867d821ea2b271398577a8b3440b3a7046Winson Chung            }
6741262e369484ce7f2565655ed80e6299232c70bd7Patrick Dubroy        }
67568d739365bf650fe7fecf99cd3bfe63a0d41bd12Adam Cohen        mOverScrollMaxBackgroundAlpha = 0.0f;
676e0f66b546994a9bdee452851c17a148db02ec300Adam Cohen        mOverScrollPageIndex = -1;
67726976d9b53161f80faf822d482ac771b8621cf31Adam Cohen
67826976d9b53161f80faf822d482ac771b8621cf31Adam Cohen        if (mDelayedResizeRunnable != null) {
67926976d9b53161f80faf822d482ac771b8621cf31Adam Cohen            mDelayedResizeRunnable.run();
68026976d9b53161f80faf822d482ac771b8621cf31Adam Cohen            mDelayedResizeRunnable = null;
68126976d9b53161f80faf822d482ac771b8621cf31Adam Cohen        }
6820142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka    }
6830142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka
6840142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka    @Override
6850142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka    protected void notifyPageSwitchListener() {
6860142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka        super.notifyPageSwitchListener();
6870142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka        Launcher.setScreen(mCurrentPage);
6880142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka    };
6890142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka
690c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka    // As a ratio of screen height, the total distance we want the parallax effect to span
691c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka    // vertically
692c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka    private float wallpaperTravelToScreenHeightRatio(int width, int height) {
693c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka        return 1.1f;
694c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka    }
695c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka
696c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka    // As a ratio of screen height, the total distance we want the parallax effect to span
697c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka    // horizontally
698c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka    private float wallpaperTravelToScreenWidthRatio(int width, int height) {
699c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka        float aspectRatio = width / (float) height;
700c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka
701c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka        // At an aspect ratio of 16/10, the wallpaper parallax effect should span 1.5 * screen width
702c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka        // At an aspect ratio of 10/16, the wallpaper parallax effect should span 1.2 * screen width
703c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka        // We will use these two data points to extrapolate how much the wallpaper parallax effect
704c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka        // to span (ie travel) at any aspect ratio:
705c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka
706c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka        final float ASPECT_RATIO_LANDSCAPE = 16/10f;
707c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka        final float ASPECT_RATIO_PORTRAIT = 10/16f;
708c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka        final float WALLPAPER_WIDTH_TO_SCREEN_RATIO_LANDSCAPE = 1.5f;
709c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka        final float WALLPAPER_WIDTH_TO_SCREEN_RATIO_PORTRAIT = 1.2f;
710c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka
711c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka        // To find out the desired width at different aspect ratios, we use the following two
712c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka        // formulas, where the coefficient on x is the aspect ratio (width/height):
713c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka        //   (16/10)x + y = 1.5
714c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka        //   (10/16)x + y = 1.2
715c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka        // We solve for x and y and end up with a final formula:
716c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka        final float x =
717c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka            (WALLPAPER_WIDTH_TO_SCREEN_RATIO_LANDSCAPE - WALLPAPER_WIDTH_TO_SCREEN_RATIO_PORTRAIT) /
718c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka            (ASPECT_RATIO_LANDSCAPE - ASPECT_RATIO_PORTRAIT);
719c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka        final float y = WALLPAPER_WIDTH_TO_SCREEN_RATIO_PORTRAIT - x * ASPECT_RATIO_PORTRAIT;
720c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka        return x * aspectRatio + y;
721c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka    }
722c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka
723c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka    // The range of scroll values for Workspace
724c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka    private int getScrollRange() {
725c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka        return getChildOffset(getChildCount() - 1) - getChildOffset(0);
726c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka    }
727c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka
728c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka    protected void setWallpaperDimension() {
729c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka        Display display = mLauncher.getWindowManager().getDefaultDisplay();
730201bc828d5a0078f505e8e37152156a0cb43c10aWinson Chung        DisplayMetrics displayMetrics = new DisplayMetrics();
731201bc828d5a0078f505e8e37152156a0cb43c10aWinson Chung        display.getRealMetrics(displayMetrics);
732201bc828d5a0078f505e8e37152156a0cb43c10aWinson Chung        final int maxDim = Math.max(displayMetrics.widthPixels, displayMetrics.heightPixels);
733201bc828d5a0078f505e8e37152156a0cb43c10aWinson Chung        final int minDim = Math.min(displayMetrics.widthPixels, displayMetrics.heightPixels);
734c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka
735c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka        // We need to ensure that there is enough extra space in the wallpaper for the intended
736c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka        // parallax effects
737c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka        mWallpaperWidth = (int) (maxDim * wallpaperTravelToScreenWidthRatio(maxDim, minDim));
738c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka        mWallpaperHeight = (int)(maxDim * wallpaperTravelToScreenHeightRatio(maxDim, minDim));
739f7640c8bba304ba99c99afcd7393893eccc9a0d9Winson Chung        new Thread("setWallpaperDimension") {
740f7640c8bba304ba99c99afcd7393893eccc9a0d9Winson Chung            public void run() {
741f7640c8bba304ba99c99afcd7393893eccc9a0d9Winson Chung                mWallpaperManager.suggestDesiredDimensions(mWallpaperWidth, mWallpaperHeight);
742f7640c8bba304ba99c99afcd7393893eccc9a0d9Winson Chung            }
743f7640c8bba304ba99c99afcd7393893eccc9a0d9Winson Chung        }.start();
744c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka    }
745c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka
746ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka    public void setVerticalWallpaperOffset(float offset) {
747ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        mWallpaperOffset.setFinalY(offset);
748ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka    }
749ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka    public float getVerticalWallpaperOffset() {
750ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        return mWallpaperOffset.getCurrY();
751ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka    }
752ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka    public void setHorizontalWallpaperOffset(float offset) {
753ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        mWallpaperOffset.setFinalX(offset);
754ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka    }
755ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka    public float getHorizontalWallpaperOffset() {
756ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        return mWallpaperOffset.getCurrX();
757c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka    }
758c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka
759ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka    private float wallpaperOffsetForCurrentScroll() {
760ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        Display display = mLauncher.getWindowManager().getDefaultDisplay();
761f70c78142457b0e9c691f2a20ed87407c7433f5bMichael Jurka        final boolean isStaticWallpaper = (mWallpaperManager.getWallpaperInfo() == null);
762ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        // The wallpaper travel width is how far, from left to right, the wallpaper will move
763ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        // at this orientation (for example, in portrait mode we don't move all the way to the
764ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        // edges of the wallpaper, or otherwise the parallax effect would be too strong)
765ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        int wallpaperTravelWidth = (int) (display.getWidth() *
766ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka                wallpaperTravelToScreenWidthRatio(display.getWidth(), display.getHeight()));
767f70c78142457b0e9c691f2a20ed87407c7433f5bMichael Jurka        if (!isStaticWallpaper) {
768f70c78142457b0e9c691f2a20ed87407c7433f5bMichael Jurka            wallpaperTravelWidth = mWallpaperWidth;
769f70c78142457b0e9c691f2a20ed87407c7433f5bMichael Jurka        }
770ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka
771ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        // Set wallpaper offset steps (1 / (number of screens - 1))
772ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        // We have 3 vertical offset states (centered, and then top/bottom aligned
773ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        // for all apps/customize)
774ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        mWallpaperManager.setWallpaperOffsetSteps(1.0f / (getChildCount() - 1), 1.0f / (3 - 1));
775ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka
77609d6eb0f3fb1d81ea59881e6c65512d09d573cc1Michael Jurka        int scrollRange = getScrollRange();
77709d6eb0f3fb1d81ea59881e6c65512d09d573cc1Michael Jurka        float scrollProgressOffset = 0;
77809d6eb0f3fb1d81ea59881e6c65512d09d573cc1Michael Jurka
77909d6eb0f3fb1d81ea59881e6c65512d09d573cc1Michael Jurka        // Account for overscroll: you only see the absolute edge of the wallpaper if
78009d6eb0f3fb1d81ea59881e6c65512d09d573cc1Michael Jurka        // you overscroll as far as you can in landscape mode. Only do this for static wallpapers
78109d6eb0f3fb1d81ea59881e6c65512d09d573cc1Michael Jurka        // because live wallpapers (and probably 3rd party wallpaper providers) rely on the offset
78209d6eb0f3fb1d81ea59881e6c65512d09d573cc1Michael Jurka        // being even intervals from 0 to 1 (eg [0, 0.25, 0.5, 0.75, 1])
78309d6eb0f3fb1d81ea59881e6c65512d09d573cc1Michael Jurka        if (isStaticWallpaper) {
78409d6eb0f3fb1d81ea59881e6c65512d09d573cc1Michael Jurka            int overscrollOffset = (int) (maxOverScroll() * display.getWidth());
78509d6eb0f3fb1d81ea59881e6c65512d09d573cc1Michael Jurka            scrollProgressOffset += overscrollOffset / (float) getScrollRange();
78609d6eb0f3fb1d81ea59881e6c65512d09d573cc1Michael Jurka            scrollRange += 2 * overscrollOffset;
78709d6eb0f3fb1d81ea59881e6c65512d09d573cc1Michael Jurka        }
78809d6eb0f3fb1d81ea59881e6c65512d09d573cc1Michael Jurka
789ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        float scrollProgress =
79009d6eb0f3fb1d81ea59881e6c65512d09d573cc1Michael Jurka            mScrollX / (float) scrollRange + scrollProgressOffset;
791ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        float offsetInDips = wallpaperTravelWidth * scrollProgress +
792f70c78142457b0e9c691f2a20ed87407c7433f5bMichael Jurka            (mWallpaperWidth - wallpaperTravelWidth) / 2; // center it
793ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        float offset = offsetInDips / (float) mWallpaperWidth;
794ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        return offset;
795ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka    }
796ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka    private void syncWallpaperOffsetWithScroll() {
797b46a2d130b3d04df830402d579060b63db559ae3Winson Chung        final boolean enableWallpaperEffects = isHardwareAccelerated();
798b46a2d130b3d04df830402d579060b63db559ae3Winson Chung        if (enableWallpaperEffects) {
799ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            mWallpaperOffset.setFinalX(wallpaperOffsetForCurrentScroll());
800c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka        }
801c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka    }
802c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka
803c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka    public void updateWallpaperOffsetImmediately() {
804c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka        mUpdateWallpaperOffsetImmediately = true;
805c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka    }
806c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka
807ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka    private void updateWallpaperOffsets() {
808ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        boolean updateNow = false;
809ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        boolean keepUpdating = true;
810ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        if (mUpdateWallpaperOffsetImmediately) {
811ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            updateNow = true;
812ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            keepUpdating = false;
813ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            mWallpaperOffset.jumpToFinal();
814ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            mUpdateWallpaperOffsetImmediately = false;
815c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka        } else {
816ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            updateNow = keepUpdating = mWallpaperOffset.computeScrollOffset();
817ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        }
818ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        if (updateNow) {
8199c6fbed48783dacd9bc6b4ec5f2cc8e59ec7ee37Michael Jurka            if (mWindowToken != null) {
8209c6fbed48783dacd9bc6b4ec5f2cc8e59ec7ee37Michael Jurka                mWallpaperManager.setWallpaperOffsets(mWindowToken,
821ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka                        mWallpaperOffset.getCurrX(), mWallpaperOffset.getCurrY());
822ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            }
823ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        }
824ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        if (keepUpdating) {
8252763be3150d429d338b9848286e9365b4052c100Michael Jurka            fastInvalidate();
826956091ba7863bd72086275e61084864994dd6fa7Joe Onorato        }
827ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka    }
828ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka
829ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka    class WallpaperOffsetInterpolator {
830ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        float mFinalHorizontalWallpaperOffset = 0.0f;
831ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        float mFinalVerticalWallpaperOffset = 0.5f;
832ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        float mHorizontalWallpaperOffset = 0.0f;
833ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        float mVerticalWallpaperOffset = 0.5f;
834ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        long mLastWallpaperOffsetUpdateTime;
835ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka        boolean mIsMovingFast;
836ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka        boolean mOverrideHorizontalCatchupConstant;
837ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka        float mHorizontalCatchupConstant = 0.35f;
838ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka        float mVerticalCatchupConstant = 0.35f;
839ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka
840ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        public WallpaperOffsetInterpolator() {
841ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        }
842ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka
843ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka        public void setOverrideHorizontalCatchupConstant(boolean override) {
844ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka            mOverrideHorizontalCatchupConstant = override;
845ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka        }
846ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka
847ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka        public void setHorizontalCatchupConstant(float f) {
848ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka            mHorizontalCatchupConstant = f;
849ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka        }
850ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka
851ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka        public void setVerticalCatchupConstant(float f) {
852ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka            mVerticalCatchupConstant = f;
853ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka        }
854ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka
855ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        public boolean computeScrollOffset() {
856ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            if (Float.compare(mHorizontalWallpaperOffset, mFinalHorizontalWallpaperOffset) == 0 &&
857ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka                    Float.compare(mVerticalWallpaperOffset, mFinalVerticalWallpaperOffset) == 0) {
858ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka                mIsMovingFast = false;
859ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka                return false;
860ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            }
861ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            Display display = mLauncher.getWindowManager().getDefaultDisplay();
862ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            boolean isLandscape = display.getWidth() > display.getHeight();
863ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka
864ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            long currentTime = System.currentTimeMillis();
865ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            long timeSinceLastUpdate = currentTime - mLastWallpaperOffsetUpdateTime;
866ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            timeSinceLastUpdate = Math.min((long) (1000/30f), timeSinceLastUpdate);
867ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            timeSinceLastUpdate = Math.max(1L, timeSinceLastUpdate);
868ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka
869ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka            float xdiff = Math.abs(mFinalHorizontalWallpaperOffset - mHorizontalWallpaperOffset);
870ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka            if (!mIsMovingFast && xdiff > 0.07) {
871ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka                mIsMovingFast = true;
872ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka            }
873ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka
874ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka            float fractionToCatchUpIn1MsHorizontal;
875ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka            if (mOverrideHorizontalCatchupConstant) {
876ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka                fractionToCatchUpIn1MsHorizontal = mHorizontalCatchupConstant;
877ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka            } else if (mIsMovingFast) {
878ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka                fractionToCatchUpIn1MsHorizontal = isLandscape ? 0.5f : 0.75f;
879ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka            } else {
880ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka                // slow
881ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka                fractionToCatchUpIn1MsHorizontal = isLandscape ? 0.27f : 0.5f;
882ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka            }
883ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka            float fractionToCatchUpIn1MsVertical = mVerticalCatchupConstant;
884ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka
885ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka            fractionToCatchUpIn1MsHorizontal /= 33f;
886ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka            fractionToCatchUpIn1MsVertical /= 33f;
887ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka
888ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            final float UPDATE_THRESHOLD = 0.00001f;
889ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            float hOffsetDelta = mFinalHorizontalWallpaperOffset - mHorizontalWallpaperOffset;
890ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            float vOffsetDelta = mFinalVerticalWallpaperOffset - mVerticalWallpaperOffset;
891ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka            boolean jumpToFinalValue = Math.abs(hOffsetDelta) < UPDATE_THRESHOLD &&
892ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka                Math.abs(vOffsetDelta) < UPDATE_THRESHOLD;
893ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            if (jumpToFinalValue) {
894ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka                mHorizontalWallpaperOffset = mFinalHorizontalWallpaperOffset;
895ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka                mVerticalWallpaperOffset = mFinalVerticalWallpaperOffset;
896ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            } else {
897ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka                float percentToCatchUpVertical =
898ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka                    Math.min(1.0f, timeSinceLastUpdate * fractionToCatchUpIn1MsVertical);
899ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka                float percentToCatchUpHorizontal =
900ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka                    Math.min(1.0f, timeSinceLastUpdate * fractionToCatchUpIn1MsHorizontal);
901ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka                mHorizontalWallpaperOffset += percentToCatchUpHorizontal * hOffsetDelta;
902ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka                mVerticalWallpaperOffset += percentToCatchUpVertical * vOffsetDelta;
903ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            }
904ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka
905ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            mLastWallpaperOffsetUpdateTime = System.currentTimeMillis();
906ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            return true;
907ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        }
908ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka
909ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        public float getCurrX() {
910ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            return mHorizontalWallpaperOffset;
911ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        }
912ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka
913ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        public float getFinalX() {
914ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            return mFinalHorizontalWallpaperOffset;
915ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        }
916ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka
917ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        public float getCurrY() {
918ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            return mVerticalWallpaperOffset;
919ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        }
920ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka
921ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        public float getFinalY() {
922ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            return mFinalVerticalWallpaperOffset;
923ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        }
924ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka
925ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        public void setFinalX(float x) {
926ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            mFinalHorizontalWallpaperOffset = Math.max(0f, Math.min(x, 1.0f));
927ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        }
928ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka
929ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        public void setFinalY(float y) {
930ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            mFinalVerticalWallpaperOffset = Math.max(0f, Math.min(y, 1.0f));
931ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        }
932ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka
933ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        public void jumpToFinal() {
934ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            mHorizontalWallpaperOffset = mFinalHorizontalWallpaperOffset;
935ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            mVerticalWallpaperOffset = mFinalVerticalWallpaperOffset;
936ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        }
9378f573952b8729b4319043ae0908997ecd2d68951Dianne Hackborn    }
938aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung
939340c5f3a708efa280a120708594247952ca65182Michael Jurka    @Override
940340c5f3a708efa280a120708594247952ca65182Michael Jurka    public void computeScroll() {
941340c5f3a708efa280a120708594247952ca65182Michael Jurka        super.computeScroll();
942ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        if (mSyncWallpaperOffsetWithScroll) {
943ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            syncWallpaperOffsetWithScroll();
944ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        }
945340c5f3a708efa280a120708594247952ca65182Michael Jurka    }
946340c5f3a708efa280a120708594247952ca65182Michael Jurka
94794f78a5c44c08b258f59b2c78ff6694e5eaca827Patrick Dubroy    void showOutlines() {
948d74c984fcc61f86160476a2543faff715e3ee2fdMichael Jurka        if (!isSmall() && !mIsSwitchingState) {
9499171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung            if (mChildrenOutlineFadeOutAnimation != null) mChildrenOutlineFadeOutAnimation.cancel();
9509171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung            if (mChildrenOutlineFadeInAnimation != null) mChildrenOutlineFadeInAnimation.cancel();
9519171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung            mChildrenOutlineFadeInAnimation = ObjectAnimator.ofFloat(this, "childrenOutlineAlpha", 1.0f);
9529171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung            mChildrenOutlineFadeInAnimation.setDuration(CHILDREN_OUTLINE_FADE_IN_DURATION);
9539171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung            mChildrenOutlineFadeInAnimation.start();
9543e7c7634531302271270c8cf418abc959d621cbcMichael Jurka        }
955f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen    }
956f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen
95794f78a5c44c08b258f59b2c78ff6694e5eaca827Patrick Dubroy    void hideOutlines() {
958d74c984fcc61f86160476a2543faff715e3ee2fdMichael Jurka        if (!isSmall() && !mIsSwitchingState) {
9599171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung            if (mChildrenOutlineFadeInAnimation != null) mChildrenOutlineFadeInAnimation.cancel();
9609171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung            if (mChildrenOutlineFadeOutAnimation != null) mChildrenOutlineFadeOutAnimation.cancel();
9619171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung            mChildrenOutlineFadeOutAnimation = ObjectAnimator.ofFloat(this, "childrenOutlineAlpha", 0.0f);
9629171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung            mChildrenOutlineFadeOutAnimation.setDuration(CHILDREN_OUTLINE_FADE_OUT_DURATION);
9639171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung            mChildrenOutlineFadeOutAnimation.setStartDelay(CHILDREN_OUTLINE_FADE_OUT_DELAY);
9649171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung            mChildrenOutlineFadeOutAnimation.start();
9653e7c7634531302271270c8cf418abc959d621cbcMichael Jurka        }
966f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen    }
967f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen
96894f78a5c44c08b258f59b2c78ff6694e5eaca827Patrick Dubroy    public void showOutlinesTemporarily() {
96994f78a5c44c08b258f59b2c78ff6694e5eaca827Patrick Dubroy        if (!mIsPageMoving && !isTouchActive()) {
97094f78a5c44c08b258f59b2c78ff6694e5eaca827Patrick Dubroy            snapToPage(mCurrentPage);
97194f78a5c44c08b258f59b2c78ff6694e5eaca827Patrick Dubroy        }
97294f78a5c44c08b258f59b2c78ff6694e5eaca827Patrick Dubroy    }
97394f78a5c44c08b258f59b2c78ff6694e5eaca827Patrick Dubroy
9749171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung    public void setChildrenOutlineAlpha(float alpha) {
9759171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung        mChildrenOutlineAlpha = alpha;
976f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen        for (int i = 0; i < getChildCount(); i++) {
977f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen            CellLayout cl = (CellLayout) getChildAt(i);
978f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen            cl.setBackgroundAlpha(alpha);
979f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen        }
980f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen    }
981f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen
9829171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung    public float getChildrenOutlineAlpha() {
9839171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung        return mChildrenOutlineAlpha;
9849171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung    }
9859171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung
9869c6fbed48783dacd9bc6b4ec5f2cc8e59ec7ee37Michael Jurka    void disableBackground() {
9879c6fbed48783dacd9bc6b4ec5f2cc8e59ec7ee37Michael Jurka        mDrawBackground = false;
9889c6fbed48783dacd9bc6b4ec5f2cc8e59ec7ee37Michael Jurka    }
9899c6fbed48783dacd9bc6b4ec5f2cc8e59ec7ee37Michael Jurka    void enableBackground() {
9909c6fbed48783dacd9bc6b4ec5f2cc8e59ec7ee37Michael Jurka        mDrawBackground = true;
9919c6fbed48783dacd9bc6b4ec5f2cc8e59ec7ee37Michael Jurka    }
9929c6fbed48783dacd9bc6b4ec5f2cc8e59ec7ee37Michael Jurka
993b9e14974ae5c03bd996bc102ed23a24126449990Michael Jurka    private void showBackgroundGradientForAllApps(boolean animated) {
994b9e14974ae5c03bd996bc102ed23a24126449990Michael Jurka        showBackgroundGradient(animated);
9958d006d5e144ae33e509ea42e0b9760ef6c5bc884Winson Chung    }
9968d006d5e144ae33e509ea42e0b9760ef6c5bc884Winson Chung
997b9e14974ae5c03bd996bc102ed23a24126449990Michael Jurka    private void showBackgroundGradient(boolean animated) {
998b4b7fa7c0383b6af58d73d3e024b91d586148cf8Winson Chung        if (mBackground == null) return;
999b9e14974ae5c03bd996bc102ed23a24126449990Michael Jurka        if (mBackgroundFadeOutAnimation != null) {
1000b9e14974ae5c03bd996bc102ed23a24126449990Michael Jurka            mBackgroundFadeOutAnimation.cancel();
1001b9e14974ae5c03bd996bc102ed23a24126449990Michael Jurka            mBackgroundFadeOutAnimation = null;
1002b9e14974ae5c03bd996bc102ed23a24126449990Michael Jurka        }
1003b9e14974ae5c03bd996bc102ed23a24126449990Michael Jurka        if (mBackgroundFadeInAnimation != null) {
1004b9e14974ae5c03bd996bc102ed23a24126449990Michael Jurka            mBackgroundFadeInAnimation.cancel();
1005b9e14974ae5c03bd996bc102ed23a24126449990Michael Jurka            mBackgroundFadeInAnimation = null;
1006b9e14974ae5c03bd996bc102ed23a24126449990Michael Jurka        }
1007b9e14974ae5c03bd996bc102ed23a24126449990Michael Jurka        final float finalAlpha = 1f;
1008b9e14974ae5c03bd996bc102ed23a24126449990Michael Jurka        if (animated) {
1009b9e14974ae5c03bd996bc102ed23a24126449990Michael Jurka            mBackgroundFadeInAnimation = ValueAnimator.ofFloat(getBackgroundAlpha(), finalAlpha);
1010b9e14974ae5c03bd996bc102ed23a24126449990Michael Jurka            mBackgroundFadeInAnimation.addUpdateListener(new AnimatorUpdateListener() {
1011b9e14974ae5c03bd996bc102ed23a24126449990Michael Jurka                public void onAnimationUpdate(ValueAnimator animation) {
1012b9e14974ae5c03bd996bc102ed23a24126449990Michael Jurka                    setBackgroundAlpha(((Float) animation.getAnimatedValue()).floatValue());
1013b9e14974ae5c03bd996bc102ed23a24126449990Michael Jurka                }
1014b9e14974ae5c03bd996bc102ed23a24126449990Michael Jurka            });
1015b9e14974ae5c03bd996bc102ed23a24126449990Michael Jurka            mBackgroundFadeInAnimation.setInterpolator(new DecelerateInterpolator(1.5f));
1016b9e14974ae5c03bd996bc102ed23a24126449990Michael Jurka            mBackgroundFadeInAnimation.setDuration(BACKGROUND_FADE_IN_DURATION);
1017b9e14974ae5c03bd996bc102ed23a24126449990Michael Jurka            mBackgroundFadeInAnimation.start();
1018b9e14974ae5c03bd996bc102ed23a24126449990Michael Jurka        } else {
1019b9e14974ae5c03bd996bc102ed23a24126449990Michael Jurka            setBackgroundAlpha(finalAlpha);
1020b9e14974ae5c03bd996bc102ed23a24126449990Michael Jurka        }
10219171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung    }
10229171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung
1023b9e14974ae5c03bd996bc102ed23a24126449990Michael Jurka    private void hideBackgroundGradient(float finalAlpha, boolean animated) {
1024b4b7fa7c0383b6af58d73d3e024b91d586148cf8Winson Chung        if (mBackground == null) return;
1025b9e14974ae5c03bd996bc102ed23a24126449990Michael Jurka        if (mBackgroundFadeInAnimation != null) {
1026b9e14974ae5c03bd996bc102ed23a24126449990Michael Jurka            mBackgroundFadeInAnimation.cancel();
1027b9e14974ae5c03bd996bc102ed23a24126449990Michael Jurka            mBackgroundFadeInAnimation = null;
1028b9e14974ae5c03bd996bc102ed23a24126449990Michael Jurka        }
1029b9e14974ae5c03bd996bc102ed23a24126449990Michael Jurka        if (mBackgroundFadeOutAnimation != null) {
1030b9e14974ae5c03bd996bc102ed23a24126449990Michael Jurka            mBackgroundFadeOutAnimation.cancel();
1031b9e14974ae5c03bd996bc102ed23a24126449990Michael Jurka            mBackgroundFadeOutAnimation = null;
1032b9e14974ae5c03bd996bc102ed23a24126449990Michael Jurka        }
1033b9e14974ae5c03bd996bc102ed23a24126449990Michael Jurka        if (animated) {
1034b9e14974ae5c03bd996bc102ed23a24126449990Michael Jurka            mBackgroundFadeOutAnimation = ValueAnimator.ofFloat(getBackgroundAlpha(), finalAlpha);
1035b9e14974ae5c03bd996bc102ed23a24126449990Michael Jurka            mBackgroundFadeOutAnimation.addUpdateListener(new AnimatorUpdateListener() {
1036b9e14974ae5c03bd996bc102ed23a24126449990Michael Jurka                public void onAnimationUpdate(ValueAnimator animation) {
1037b9e14974ae5c03bd996bc102ed23a24126449990Michael Jurka                    setBackgroundAlpha(((Float) animation.getAnimatedValue()).floatValue());
1038b9e14974ae5c03bd996bc102ed23a24126449990Michael Jurka                }
1039b9e14974ae5c03bd996bc102ed23a24126449990Michael Jurka            });
1040b9e14974ae5c03bd996bc102ed23a24126449990Michael Jurka            mBackgroundFadeOutAnimation.setInterpolator(new DecelerateInterpolator(1.5f));
1041b9e14974ae5c03bd996bc102ed23a24126449990Michael Jurka            mBackgroundFadeOutAnimation.setDuration(BACKGROUND_FADE_OUT_DURATION);
1042b9e14974ae5c03bd996bc102ed23a24126449990Michael Jurka            mBackgroundFadeOutAnimation.start();
1043b9e14974ae5c03bd996bc102ed23a24126449990Michael Jurka        } else {
1044b9e14974ae5c03bd996bc102ed23a24126449990Michael Jurka            setBackgroundAlpha(finalAlpha);
1045b9e14974ae5c03bd996bc102ed23a24126449990Michael Jurka        }
10469171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung    }
10479171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung
10489171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung    public void setBackgroundAlpha(float alpha) {
10499c6fbed48783dacd9bc6b4ec5f2cc8e59ec7ee37Michael Jurka        if (alpha != mBackgroundAlpha) {
10509c6fbed48783dacd9bc6b4ec5f2cc8e59ec7ee37Michael Jurka            mBackgroundAlpha = alpha;
10519c6fbed48783dacd9bc6b4ec5f2cc8e59ec7ee37Michael Jurka            invalidate();
10529c6fbed48783dacd9bc6b4ec5f2cc8e59ec7ee37Michael Jurka        }
10539171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung    }
10549171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung
1055f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen    public float getBackgroundAlpha() {
1056f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen        return mBackgroundAlpha;
1057f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen    }
1058f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen
10596b879f0a5885274a85333531e091283405d490ccAdam Lesinski    /**
10606b879f0a5885274a85333531e091283405d490ccAdam Lesinski     * Due to 3D transformations, if two CellLayouts are theoretically touching each other,
10616b879f0a5885274a85333531e091283405d490ccAdam Lesinski     * on the xy plane, when one is rotated along the y-axis, the gap between them is perceived
10626b879f0a5885274a85333531e091283405d490ccAdam Lesinski     * as being larger. This method computes what offset the rotated view should be translated
10636b879f0a5885274a85333531e091283405d490ccAdam Lesinski     * in order to minimize this perceived gap.
10646b879f0a5885274a85333531e091283405d490ccAdam Lesinski     * @param degrees Angle of the view
10656b879f0a5885274a85333531e091283405d490ccAdam Lesinski     * @param width Width of the view
10666b879f0a5885274a85333531e091283405d490ccAdam Lesinski     * @param height Height of the view
10676b879f0a5885274a85333531e091283405d490ccAdam Lesinski     * @return Offset to be used in a View.setTranslationX() call
10686b879f0a5885274a85333531e091283405d490ccAdam Lesinski     */
10696b879f0a5885274a85333531e091283405d490ccAdam Lesinski    private float getOffsetXForRotation(float degrees, int width, int height) {
10706b879f0a5885274a85333531e091283405d490ccAdam Lesinski        mMatrix.reset();
10716b879f0a5885274a85333531e091283405d490ccAdam Lesinski        mCamera.save();
10726b879f0a5885274a85333531e091283405d490ccAdam Lesinski        mCamera.rotateY(Math.abs(degrees));
10736b879f0a5885274a85333531e091283405d490ccAdam Lesinski        mCamera.getMatrix(mMatrix);
10746b879f0a5885274a85333531e091283405d490ccAdam Lesinski        mCamera.restore();
10756b879f0a5885274a85333531e091283405d490ccAdam Lesinski
10766b879f0a5885274a85333531e091283405d490ccAdam Lesinski        mMatrix.preTranslate(-width * 0.5f, -height * 0.5f);
10776b879f0a5885274a85333531e091283405d490ccAdam Lesinski        mMatrix.postTranslate(width * 0.5f, height * 0.5f);
10786b879f0a5885274a85333531e091283405d490ccAdam Lesinski        mTempFloat2[0] = width;
10796b879f0a5885274a85333531e091283405d490ccAdam Lesinski        mTempFloat2[1] = height;
10806b879f0a5885274a85333531e091283405d490ccAdam Lesinski        mMatrix.mapPoints(mTempFloat2);
10816b879f0a5885274a85333531e091283405d490ccAdam Lesinski        return (width - mTempFloat2[0]) * (degrees > 0.0f ? 1.0f : -1.0f);
10826b879f0a5885274a85333531e091283405d490ccAdam Lesinski    }
10836b879f0a5885274a85333531e091283405d490ccAdam Lesinski
108468d739365bf650fe7fecf99cd3bfe63a0d41bd12Adam Cohen    float backgroundAlphaInterpolator(float r) {
108568d739365bf650fe7fecf99cd3bfe63a0d41bd12Adam Cohen        float pivotA = 0.1f;
108668d739365bf650fe7fecf99cd3bfe63a0d41bd12Adam Cohen        float pivotB = 0.4f;
108768d739365bf650fe7fecf99cd3bfe63a0d41bd12Adam Cohen        if (r < pivotA) {
108868d739365bf650fe7fecf99cd3bfe63a0d41bd12Adam Cohen            return 0;
108968d739365bf650fe7fecf99cd3bfe63a0d41bd12Adam Cohen        } else if (r > pivotB) {
109068d739365bf650fe7fecf99cd3bfe63a0d41bd12Adam Cohen            return 1.0f;
109168d739365bf650fe7fecf99cd3bfe63a0d41bd12Adam Cohen        } else {
109268d739365bf650fe7fecf99cd3bfe63a0d41bd12Adam Cohen            return (r - pivotA)/(pivotB - pivotA);
109368d739365bf650fe7fecf99cd3bfe63a0d41bd12Adam Cohen        }
109468d739365bf650fe7fecf99cd3bfe63a0d41bd12Adam Cohen    }
109568d739365bf650fe7fecf99cd3bfe63a0d41bd12Adam Cohen
109668d739365bf650fe7fecf99cd3bfe63a0d41bd12Adam Cohen    float overScrollBackgroundAlphaInterpolator(float r) {
1097e0f66b546994a9bdee452851c17a148db02ec300Adam Cohen        float threshold = 0.08f;
109868d739365bf650fe7fecf99cd3bfe63a0d41bd12Adam Cohen
109968d739365bf650fe7fecf99cd3bfe63a0d41bd12Adam Cohen        if (r > mOverScrollMaxBackgroundAlpha) {
110068d739365bf650fe7fecf99cd3bfe63a0d41bd12Adam Cohen            mOverScrollMaxBackgroundAlpha = r;
110168d739365bf650fe7fecf99cd3bfe63a0d41bd12Adam Cohen        } else if (r < mOverScrollMaxBackgroundAlpha) {
110268d739365bf650fe7fecf99cd3bfe63a0d41bd12Adam Cohen            r = mOverScrollMaxBackgroundAlpha;
110368d739365bf650fe7fecf99cd3bfe63a0d41bd12Adam Cohen        }
110468d739365bf650fe7fecf99cd3bfe63a0d41bd12Adam Cohen
110568d739365bf650fe7fecf99cd3bfe63a0d41bd12Adam Cohen        return Math.min(r / threshold, 1.0f);
110668d739365bf650fe7fecf99cd3bfe63a0d41bd12Adam Cohen    }
110768d739365bf650fe7fecf99cd3bfe63a0d41bd12Adam Cohen
1108f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen    @Override
1109f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen    protected void screenScrolled(int screenCenter) {
1110007c69867d821ea2b271398577a8b3440b3a7046Winson Chung        super.screenScrolled(screenCenter);
1111007c69867d821ea2b271398577a8b3440b3a7046Winson Chung
1112c3bc26031cc5b36328bd7cdbcf04ff269dea11a5Adam Cohen        // If the screen is not xlarge, then don't rotate the CellLayouts
1113785d2eb2b8d7072c8124300dd9168ff51a91cf38Winson Chung        // NOTE: If we don't update the side pages alpha, then we should not hide the side pages.
1114785d2eb2b8d7072c8124300dd9168ff51a91cf38Winson Chung        //       see unshrink().
1115a2eb17095dcffa75c1e9681fdc318fe6e0564321Michael Jurka        if (!LauncherApplication.isScreenLarge()) return;
1116c3bc26031cc5b36328bd7cdbcf04ff269dea11a5Adam Cohen
111721f12b52a54d2658ed14fcf7bb1ca17a198f62beAdam Cohen        final int halfScreenSize = getMeasuredWidth() / 2;
111868d739365bf650fe7fecf99cd3bfe63a0d41bd12Adam Cohen
111921f12b52a54d2658ed14fcf7bb1ca17a198f62beAdam Cohen        for (int i = 0; i < getChildCount(); i++) {
11201b0aaac0b3abd777ed319341f95a8dfff23c79f4Adam Cohen            CellLayout cl = (CellLayout) getChildAt(i);
11211b0aaac0b3abd777ed319341f95a8dfff23c79f4Adam Cohen            if (cl != null) {
1122d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka                int totalDistance = getScaledMeasuredWidth(cl) + mPageSpacing;
112321f12b52a54d2658ed14fcf7bb1ca17a198f62beAdam Cohen                int delta = screenCenter - (getChildOffset(i) -
112421f12b52a54d2658ed14fcf7bb1ca17a198f62beAdam Cohen                        getRelativeChildOffset(i) + halfScreenSize);
1125f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen
1126ddb821981e0919bbd3b4c9a2b6aa1811d6c86bb6Adam Cohen                float scrollProgress = delta / (totalDistance * 1.0f);
112721f12b52a54d2658ed14fcf7bb1ca17a198f62beAdam Cohen                scrollProgress = Math.min(scrollProgress, 1.0f);
112821f12b52a54d2658ed14fcf7bb1ca17a198f62beAdam Cohen                scrollProgress = Math.max(scrollProgress, -1.0f);
1129f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen
1130e0f66b546994a9bdee452851c17a148db02ec300Adam Cohen                // If the current page (i) is being overscrolled, we use a different
1131e0f66b546994a9bdee452851c17a148db02ec300Adam Cohen                // set of rules for setting the background alpha multiplier.
1132e0f66b546994a9bdee452851c17a148db02ec300Adam Cohen                if ((mScrollX < 0 && i == 0) || (mScrollX > mMaxScrollX &&
1133e0f66b546994a9bdee452851c17a148db02ec300Adam Cohen                        i == getChildCount() -1 )) {
1134e0f66b546994a9bdee452851c17a148db02ec300Adam Cohen                    cl.setBackgroundAlphaMultiplier(
1135e0f66b546994a9bdee452851c17a148db02ec300Adam Cohen                            overScrollBackgroundAlphaInterpolator(Math.abs(scrollProgress)));
1136e0f66b546994a9bdee452851c17a148db02ec300Adam Cohen                    mOverScrollPageIndex = i;
1137e0f66b546994a9bdee452851c17a148db02ec300Adam Cohen                } else if (mOverScrollPageIndex != i) {
1138e0f66b546994a9bdee452851c17a148db02ec300Adam Cohen                    cl.setBackgroundAlphaMultiplier(
1139e0f66b546994a9bdee452851c17a148db02ec300Adam Cohen                            backgroundAlphaInterpolator(Math.abs(scrollProgress)));
1140e0f66b546994a9bdee452851c17a148db02ec300Adam Cohen                }
11411b0aaac0b3abd777ed319341f95a8dfff23c79f4Adam Cohen
114221f12b52a54d2658ed14fcf7bb1ca17a198f62beAdam Cohen                float rotation = WORKSPACE_ROTATION * scrollProgress;
11436b879f0a5885274a85333531e091283405d490ccAdam Lesinski                float translationX = getOffsetXForRotation(rotation, cl.getWidth(), cl.getHeight());
11446b879f0a5885274a85333531e091283405d490ccAdam Lesinski                cl.setTranslationX(translationX);
114568d739365bf650fe7fecf99cd3bfe63a0d41bd12Adam Cohen
11461b0aaac0b3abd777ed319341f95a8dfff23c79f4Adam Cohen                cl.setRotationY(rotation);
1147f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen            }
1148f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen        }
1149f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen    }
1150f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen
115100acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato    protected void onAttachedToWindow() {
115200acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato        super.onAttachedToWindow();
11539c6fbed48783dacd9bc6b4ec5f2cc8e59ec7ee37Michael Jurka        mWindowToken = getWindowToken();
1154956091ba7863bd72086275e61084864994dd6fa7Joe Onorato        computeScroll();
11559c6fbed48783dacd9bc6b4ec5f2cc8e59ec7ee37Michael Jurka        mDragController.setWindowToken(mWindowToken);
11569c6fbed48783dacd9bc6b4ec5f2cc8e59ec7ee37Michael Jurka    }
11579c6fbed48783dacd9bc6b4ec5f2cc8e59ec7ee37Michael Jurka
11589c6fbed48783dacd9bc6b4ec5f2cc8e59ec7ee37Michael Jurka    protected void onDetachedFromWindow() {
11599c6fbed48783dacd9bc6b4ec5f2cc8e59ec7ee37Michael Jurka        mWindowToken = null;
116000acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato    }
116100acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato
116231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    @Override
116328750fba6a2d141eb9a1e566718c17236030b815Michael Jurka    protected void onLayout(boolean changed, int left, int top, int right, int bottom) {
1164c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka        if (mFirstLayout && mCurrentPage >= 0 && mCurrentPage < getChildCount()) {
1165c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka            mUpdateWallpaperOffsetImmediately = true;
1166c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka        }
11670142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka        super.onLayout(changed, left, top, right, bottom);
1168aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung
116979212d81361d1ad8c941c48f8323eb526643ca68Michael Jurka        // if shrinkToBottom() is called on initialization, it has to be deferred
117079212d81361d1ad8c941c48f8323eb526643ca68Michael Jurka        // until after the first call to onLayout so that it has the correct width
1171d74c984fcc61f86160476a2543faff715e3ee2fdMichael Jurka        if (mSwitchStateAfterFirstLayout) {
1172d74c984fcc61f86160476a2543faff715e3ee2fdMichael Jurka            mSwitchStateAfterFirstLayout = false;
1173696a67969d657d38eff33996633f08da0e21841fAdam Cohen            // shrink can trigger a synchronous onLayout call, so we
1174696a67969d657d38eff33996633f08da0e21841fAdam Cohen            // post this to avoid a stack overflow / tangled onLayout calls
1175696a67969d657d38eff33996633f08da0e21841fAdam Cohen            post(new Runnable() {
1176696a67969d657d38eff33996633f08da0e21841fAdam Cohen                public void run() {
1177d74c984fcc61f86160476a2543faff715e3ee2fdMichael Jurka                    shrink(mStateAfterFirstLayout, false);
1178696a67969d657d38eff33996633f08da0e21841fAdam Cohen                }
1179696a67969d657d38eff33996633f08da0e21841fAdam Cohen            });
118079212d81361d1ad8c941c48f8323eb526643ca68Michael Jurka        }
118131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
118231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
118331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    @Override
11849171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung    protected void onDraw(Canvas canvas) {
1185ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        updateWallpaperOffsets();
1186c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka
11879171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung        // Draw the background gradient if necessary
11889c6fbed48783dacd9bc6b4ec5f2cc8e59ec7ee37Michael Jurka        if (mBackground != null && mBackgroundAlpha > 0.0f && mDrawBackground) {
11898d006d5e144ae33e509ea42e0b9760ef6c5bc884Winson Chung            int alpha = (int) (mBackgroundAlpha * 255);
1190f0ea4d3378be7b962c8e0bce2392df5e82491fb8Winson Chung            mBackground.setAlpha(alpha);
1191f0ea4d3378be7b962c8e0bce2392df5e82491fb8Winson Chung            mBackground.setBounds(mScrollX, 0, mScrollX + getMeasuredWidth(),
1192f0ea4d3378be7b962c8e0bce2392df5e82491fb8Winson Chung                    getMeasuredHeight());
1193f0ea4d3378be7b962c8e0bce2392df5e82491fb8Winson Chung            mBackground.draw(canvas);
11949171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung        }
1195073a46ff635d089cbcb15d939d1de42dd2b86c97Adam Cohen
11969171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung        super.onDraw(canvas);
11979171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung    }
11989171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung
11999171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung    @Override
12000142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka    protected void dispatchDraw(Canvas canvas) {
1201557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung        super.dispatchDraw(canvas);
1202557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung
1203557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung        if (mInScrollArea && !LauncherApplication.isScreenLarge()) {
1204557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung            final int width = getWidth();
1205557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung            final int height = getHeight();
1206557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung            final int pageHeight = getChildAt(0).getHeight();
1207557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung
1208557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung            // This determines the height of the glowing edge: 90% of the page height
1209557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung            final int padding = (int) ((height - pageHeight) * 0.5f + pageHeight * 0.1f);
1210557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung
1211557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung            final CellLayout leftPage = (CellLayout) getChildAt(mCurrentPage - 1);
1212557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung            final CellLayout rightPage = (CellLayout) getChildAt(mCurrentPage + 1);
1213557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung
1214557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung            if (leftPage != null && leftPage.getIsDragOverlapping()) {
1215557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung                final Drawable d = getResources().getDrawable(R.drawable.page_hover_left_holo);
1216557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung                d.setBounds(mScrollX, padding, mScrollX + d.getIntrinsicWidth(), height - padding);
1217557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung                d.draw(canvas);
1218557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung            } else if (rightPage != null && rightPage.getIsDragOverlapping()) {
1219557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung                final Drawable d = getResources().getDrawable(R.drawable.page_hover_right_holo);
1220557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung                d.setBounds(mScrollX + width - d.getIntrinsicWidth(), padding, mScrollX + width, height - padding);
1221557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung                d.draw(canvas);
12220207c522472d7252f146f4d39efa456ca5248c6bPatrick Dubroy            }
122331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
122431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
122531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
122631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    @Override
122731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    protected boolean onRequestFocusInDescendants(int direction, Rect previouslyFocusedRect) {
1228678862186af4ea70d9b4012c9bc127e7fea5e607Joe Onorato        if (!mLauncher.isAllAppsVisible()) {
122931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            final Folder openFolder = getOpenFolder();
123031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            if (openFolder != null) {
123131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                return openFolder.requestFocus(direction, previouslyFocusedRect);
123231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            } else {
12330142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka                return super.onRequestFocusInDescendants(direction, previouslyFocusedRect);
123431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            }
123531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
123631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        return false;
123731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
123831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
123931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    @Override
124097d85d23b013347bead4e2f5fa430a79ce69431eWinson Chung    public int getDescendantFocusability() {
1241d74c984fcc61f86160476a2543faff715e3ee2fdMichael Jurka        if (isSmall()) {
124297d85d23b013347bead4e2f5fa430a79ce69431eWinson Chung            return ViewGroup.FOCUS_BLOCK_DESCENDANTS;
124397d85d23b013347bead4e2f5fa430a79ce69431eWinson Chung        }
124497d85d23b013347bead4e2f5fa430a79ce69431eWinson Chung        return super.getDescendantFocusability();
124597d85d23b013347bead4e2f5fa430a79ce69431eWinson Chung    }
124697d85d23b013347bead4e2f5fa430a79ce69431eWinson Chung
124797d85d23b013347bead4e2f5fa430a79ce69431eWinson Chung    @Override
1248c2e24c0a37ddeab930f731c062705d435e477f75Romain Guy    public void addFocusables(ArrayList<View> views, int direction, int focusableMode) {
1249678862186af4ea70d9b4012c9bc127e7fea5e607Joe Onorato        if (!mLauncher.isAllAppsVisible()) {
125031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            final Folder openFolder = getOpenFolder();
12510142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka            if (openFolder != null) {
125231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                openFolder.addFocusables(views, direction);
12530142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka            } else {
12540142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka                super.addFocusables(views, direction, focusableMode);
125531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            }
125631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
125731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
125831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
1259d74c984fcc61f86160476a2543faff715e3ee2fdMichael Jurka    public boolean isSmall() {
12603384c7be3cf735f68a90d835627350fa48b94d48Adam Cohen        return mState == State.SMALL || mState == State.SPRING_LOADED;
1261d74c984fcc61f86160476a2543faff715e3ee2fdMichael Jurka    }
1262d74c984fcc61f86160476a2543faff715e3ee2fdMichael Jurka
12630142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka    void enableChildrenCache(int fromPage, int toPage) {
12640142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka        if (fromPage > toPage) {
12650142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka            final int temp = fromPage;
12660142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka            fromPage = toPage;
12670142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka            toPage = temp;
12683a2b3f2be58843d26549fb0ec6c6533627c7cd19Mike Cleron        }
1269aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung
1270dee0589388ba0f6373912e18bf86243282fb3b9bMichael Jurka        final int screenCount = getChildCount();
1271fea5d0250767ab938f623a404e6292a32dd2fdf5Adam Powell
12720142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka        fromPage = Math.max(fromPage, 0);
12730142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka        toPage = Math.min(toPage, screenCount - 1);
1274fea5d0250767ab938f623a404e6292a32dd2fdf5Adam Powell
12750142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka        for (int i = fromPage; i <= toPage; i++) {
127631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            final CellLayout layout = (CellLayout) getChildAt(i);
127731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            layout.setChildrenDrawnWithCacheEnabled(true);
127831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            layout.setChildrenDrawingCacheEnabled(true);
127931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
128031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
128131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
128231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    void clearChildrenCache() {
1283dee0589388ba0f6373912e18bf86243282fb3b9bMichael Jurka        final int screenCount = getChildCount();
1284dee0589388ba0f6373912e18bf86243282fb3b9bMichael Jurka        for (int i = 0; i < screenCount; i++) {
128531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            final CellLayout layout = (CellLayout) getChildAt(i);
128631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            layout.setChildrenDrawnWithCacheEnabled(false);
128731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
128831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
128931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
1290d74c984fcc61f86160476a2543faff715e3ee2fdMichael Jurka    private void updateChildrenLayersEnabled() {
1291d74c984fcc61f86160476a2543faff715e3ee2fdMichael Jurka        boolean small =
1292d74c984fcc61f86160476a2543faff715e3ee2fdMichael Jurka            isSmall() || mIsSwitchingState || mState == State.SPRING_LOADED;
1293d74c984fcc61f86160476a2543faff715e3ee2fdMichael Jurka        boolean dragging = mAnimatingViewIntoPlace || mIsDragOccuring;
1294d74c984fcc61f86160476a2543faff715e3ee2fdMichael Jurka        boolean enableChildrenLayers = small || dragging || isPageMoving();
1295d74c984fcc61f86160476a2543faff715e3ee2fdMichael Jurka
1296d74c984fcc61f86160476a2543faff715e3ee2fdMichael Jurka        if (enableChildrenLayers != mChildrenLayersEnabled) {
1297d74c984fcc61f86160476a2543faff715e3ee2fdMichael Jurka            mChildrenLayersEnabled = enableChildrenLayers;
1298d74c984fcc61f86160476a2543faff715e3ee2fdMichael Jurka            for (int i = 0; i < getPageCount(); i++) {
1299d74c984fcc61f86160476a2543faff715e3ee2fdMichael Jurka                ((ViewGroup)getChildAt(i)).setChildrenLayersEnabled(enableChildrenLayers);
1300d74c984fcc61f86160476a2543faff715e3ee2fdMichael Jurka            }
1301ce7e05fbe8abd5f25ec47e0e05b5cc76ceb39d2eMichael Jurka        }
1302ce7e05fbe8abd5f25ec47e0e05b5cc76ceb39d2eMichael Jurka    }
1303ce7e05fbe8abd5f25ec47e0e05b5cc76ceb39d2eMichael Jurka
13041d0867c8de6a889bccde9b7e768daef182a25e5cJeff Brown    @Override
13051d0867c8de6a889bccde9b7e768daef182a25e5cJeff Brown    protected void onWallpaperTap(MotionEvent ev) {
13061d0867c8de6a889bccde9b7e768daef182a25e5cJeff Brown        final int[] position = mTempCell;
13071d0867c8de6a889bccde9b7e768daef182a25e5cJeff Brown        getLocationOnScreen(position);
13081d0867c8de6a889bccde9b7e768daef182a25e5cJeff Brown
13091d0867c8de6a889bccde9b7e768daef182a25e5cJeff Brown        int pointerIndex = ev.getActionIndex();
13101d0867c8de6a889bccde9b7e768daef182a25e5cJeff Brown        position[0] += (int) ev.getX(pointerIndex);
13111d0867c8de6a889bccde9b7e768daef182a25e5cJeff Brown        position[1] += (int) ev.getY(pointerIndex);
13121d0867c8de6a889bccde9b7e768daef182a25e5cJeff Brown
13131d0867c8de6a889bccde9b7e768daef182a25e5cJeff Brown        mWallpaperManager.sendWallpaperCommand(getWindowToken(),
13141d0867c8de6a889bccde9b7e768daef182a25e5cJeff Brown                ev.getAction() == MotionEvent.ACTION_UP
13151d0867c8de6a889bccde9b7e768daef182a25e5cJeff Brown                        ? WallpaperManager.COMMAND_TAP : WallpaperManager.COMMAND_SECONDARY_TAP,
13161d0867c8de6a889bccde9b7e768daef182a25e5cJeff Brown                position[0], position[1], 0, null);
13171d0867c8de6a889bccde9b7e768daef182a25e5cJeff Brown    }
13181d0867c8de6a889bccde9b7e768daef182a25e5cJeff Brown
1319a985e598f6071f4caca15ba3cb6b2cd3e38b217dAdam Cohen    private float getYScaleForScreen(int screen) {
1320a985e598f6071f4caca15ba3cb6b2cd3e38b217dAdam Cohen        int x = Math.abs(screen - 2);
1321a985e598f6071f4caca15ba3cb6b2cd3e38b217dAdam Cohen
1322a985e598f6071f4caca15ba3cb6b2cd3e38b217dAdam Cohen        // TODO: This should be generalized for use with arbitrary rotation angles.
1323a985e598f6071f4caca15ba3cb6b2cd3e38b217dAdam Cohen        switch(x) {
1324a985e598f6071f4caca15ba3cb6b2cd3e38b217dAdam Cohen            case 0: return EXTRA_SCALE_FACTOR_0;
1325a985e598f6071f4caca15ba3cb6b2cd3e38b217dAdam Cohen            case 1: return EXTRA_SCALE_FACTOR_1;
1326a985e598f6071f4caca15ba3cb6b2cd3e38b217dAdam Cohen            case 2: return EXTRA_SCALE_FACTOR_2;
1327a985e598f6071f4caca15ba3cb6b2cd3e38b217dAdam Cohen        }
1328a985e598f6071f4caca15ba3cb6b2cd3e38b217dAdam Cohen        return 1.0f;
1329a985e598f6071f4caca15ba3cb6b2cd3e38b217dAdam Cohen    }
1330a985e598f6071f4caca15ba3cb6b2cd3e38b217dAdam Cohen
1331d74c984fcc61f86160476a2543faff715e3ee2fdMichael Jurka    public void shrink(State shrinkState) {
1332af91de06b99e2d5d41ce79fefa34ce2111e51917Michael Jurka        shrink(shrinkState, true);
1333af91de06b99e2d5d41ce79fefa34ce2111e51917Michael Jurka    }
13349171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung
1335af91de06b99e2d5d41ce79fefa34ce2111e51917Michael Jurka    // we use this to shrink the workspace for the all apps view and the customize view
1336d74c984fcc61f86160476a2543faff715e3ee2fdMichael Jurka    public void shrink(State shrinkState, boolean animated) {
1337883f55b1d261862b0de1b43af0b17d351761a9c6Michael Jurka        if (mFirstLayout) {
1338883f55b1d261862b0de1b43af0b17d351761a9c6Michael Jurka            // (mFirstLayout == "first layout has not happened yet")
1339883f55b1d261862b0de1b43af0b17d351761a9c6Michael Jurka            // if we get a call to shrink() as part of our initialization (for example, if
1340883f55b1d261862b0de1b43af0b17d351761a9c6Michael Jurka            // Launcher is started in All Apps mode) then we need to wait for a layout call
1341883f55b1d261862b0de1b43af0b17d351761a9c6Michael Jurka            // to get our width so we can layout the mini-screen views correctly
1342d74c984fcc61f86160476a2543faff715e3ee2fdMichael Jurka            mSwitchStateAfterFirstLayout = true;
1343d74c984fcc61f86160476a2543faff715e3ee2fdMichael Jurka            mStateAfterFirstLayout = shrinkState;
1344883f55b1d261862b0de1b43af0b17d351761a9c6Michael Jurka            return;
1345883f55b1d261862b0de1b43af0b17d351761a9c6Michael Jurka        }
1346d74c984fcc61f86160476a2543faff715e3ee2fdMichael Jurka
13473e7c7634531302271270c8cf418abc959d621cbcMichael Jurka        // Stop any scrolling, move to the current page right away
1348a997ac26664befbd0d5b172e36ef9e8b2c63b435Michael Jurka        setCurrentPage((mNextPage != INVALID_PAGE) ? mNextPage : mCurrentPage);
13493e7c7634531302271270c8cf418abc959d621cbcMichael Jurka
13501b0aaac0b3abd777ed319341f95a8dfff23c79f4Adam Cohen        CellLayout currentPage = (CellLayout) getChildAt(mCurrentPage);
13510dfcf68b58bec1ac74f9b8700e3357f8e6d8b4a3Patrick Dubroy        if (currentPage == null) {
13520dfcf68b58bec1ac74f9b8700e3357f8e6d8b4a3Patrick Dubroy            Log.w(TAG, "currentPage is NULL! mCurrentPage " + mCurrentPage
13530dfcf68b58bec1ac74f9b8700e3357f8e6d8b4a3Patrick Dubroy                    + " mNextPage " + mNextPage);
13540dfcf68b58bec1ac74f9b8700e3357f8e6d8b4a3Patrick Dubroy            return;
13550dfcf68b58bec1ac74f9b8700e3357f8e6d8b4a3Patrick Dubroy        }
1356ddb821981e0919bbd3b4c9a2b6aa1811d6c86bb6Adam Cohen        if (currentPage.getBackgroundAlphaMultiplier() < 1.0f) {
1357ddb821981e0919bbd3b4c9a2b6aa1811d6c86bb6Adam Cohen            currentPage.setBackgroundAlpha(0.0f);
1358ddb821981e0919bbd3b4c9a2b6aa1811d6c86bb6Adam Cohen        }
13591b0aaac0b3abd777ed319341f95a8dfff23c79f4Adam Cohen        currentPage.setBackgroundAlphaMultiplier(1.0f);
13601b0aaac0b3abd777ed319341f95a8dfff23c79f4Adam Cohen
1361d74c984fcc61f86160476a2543faff715e3ee2fdMichael Jurka        mState = shrinkState;
1362d74c984fcc61f86160476a2543faff715e3ee2fdMichael Jurka        updateChildrenLayersEnabled();
13630dfcf68b58bec1ac74f9b8700e3357f8e6d8b4a3Patrick Dubroy
13640dfcf68b58bec1ac74f9b8700e3357f8e6d8b4a3Patrick Dubroy        // we intercept and reject all touch events when we're small, so be sure to reset the state
13650dfcf68b58bec1ac74f9b8700e3357f8e6d8b4a3Patrick Dubroy        mTouchState = TOUCH_STATE_REST;
13660dfcf68b58bec1ac74f9b8700e3357f8e6d8b4a3Patrick Dubroy        mActivePointerId = INVALID_POINTER;
13670dfcf68b58bec1ac74f9b8700e3357f8e6d8b4a3Patrick Dubroy
13687247f6315baf16eacb3286f21bd80321385c1defPatrick Dubroy        final Resources res = getResources();
1369dee0589388ba0f6373912e18bf86243282fb3b9bMichael Jurka        final int screenWidth = getWidth();
1370213d96354e7407dba5c9715eb10d04bebd82c395Michael Jurka        final int screenHeight = getHeight();
13710142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka
1372244d74cb353f1260c4d633e719bf84bb3b6e52bcPatrick Dubroy        // How much the workspace shrinks when we enter all apps or customization mode
1373244d74cb353f1260c4d633e719bf84bb3b6e52bcPatrick Dubroy        final float shrinkFactor = res.getInteger(R.integer.config_workspaceShrinkPercent) / 100.0f;
1374244d74cb353f1260c4d633e719bf84bb3b6e52bcPatrick Dubroy
13750142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka        // Making the assumption that all pages have the same width as the 0th
13760142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka        final int pageWidth = getChildAt(0).getMeasuredWidth();
13770142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka        final int pageHeight = getChildAt(0).getMeasuredHeight();
13780142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka
1379244d74cb353f1260c4d633e719bf84bb3b6e52bcPatrick Dubroy        final int scaledPageWidth = (int) (shrinkFactor * pageWidth);
1380244d74cb353f1260c4d633e719bf84bb3b6e52bcPatrick Dubroy        final int scaledPageHeight = (int) (shrinkFactor * pageHeight);
1381a985e598f6071f4caca15ba3cb6b2cd3e38b217dAdam Cohen        final float extraScaledSpacing = res.getDimension(R.dimen.smallScreenExtraSpacing);
1382dee0589388ba0f6373912e18bf86243282fb3b9bMichael Jurka
1383dee0589388ba0f6373912e18bf86243282fb3b9bMichael Jurka        final int screenCount = getChildCount();
1384a985e598f6071f4caca15ba3cb6b2cd3e38b217dAdam Cohen        float totalWidth = screenCount * scaledPageWidth + (screenCount - 1) * extraScaledSpacing;
1385213d96354e7407dba5c9715eb10d04bebd82c395Michael Jurka
1386c1a036b5ebacdeb564502bacc740fd85803a7638Michael Jurka        // We shrink and disappear to nothing
1387df4b83dd9d6380ab963c62d1f9d1312efc87cb0fWinson Chung        boolean isPortrait = getMeasuredHeight() > getMeasuredWidth();
1388c1a036b5ebacdeb564502bacc740fd85803a7638Michael Jurka        float y = screenHeight - scaledPageHeight - (isPortrait ?
1389ef0066b52d2754ca0553ec79613c650b5649afaaWinson Chung                getResources().getDimension(R.dimen.allAppsSmallScreenVerticalMarginPortrait) :
1390ef0066b52d2754ca0553ec79613c650b5649afaaWinson Chung                getResources().getDimension(R.dimen.allAppsSmallScreenVerticalMarginLandscape));
1391c1a036b5ebacdeb564502bacc740fd85803a7638Michael Jurka        float finalAlpha = 0.0f;
1392d74c984fcc61f86160476a2543faff715e3ee2fdMichael Jurka
1393d74c984fcc61f86160476a2543faff715e3ee2fdMichael Jurka        int duration = res.getInteger(R.integer.config_appsCustomizeWorkspaceShrinkTime);
1394f16e571330f030e445c4f7f63f55d093337ffd87Adam Cohen
1395dee0589388ba0f6373912e18bf86243282fb3b9bMichael Jurka        // We animate all the screens to the centered position in workspace
1396dee0589388ba0f6373912e18bf86243282fb3b9bMichael Jurka        // At the same time, the screens become greyed/dimmed
1397dee0589388ba0f6373912e18bf86243282fb3b9bMichael Jurka
1398dee0589388ba0f6373912e18bf86243282fb3b9bMichael Jurka        // newX is initialized to the left-most position of the centered screens
1399742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka        float x = mScroller.getFinalX() + screenWidth / 2 - totalWidth / 2;
1400a985e598f6071f4caca15ba3cb6b2cd3e38b217dAdam Cohen
1401a985e598f6071f4caca15ba3cb6b2cd3e38b217dAdam Cohen        // We are going to scale about the center of the view, so we need to adjust the positions
1402a985e598f6071f4caca15ba3cb6b2cd3e38b217dAdam Cohen        // of the views accordingly
1403742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka        x -= (pageWidth - scaledPageWidth) / 2.0f;
1404742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka        y -= (pageHeight - scaledPageHeight) / 2.0f;
14053c4c20fbe682cb4b3ef94f09afe0af09171583f3Michael Jurka
14063c4c20fbe682cb4b3ef94f09afe0af09171583f3Michael Jurka        if (mAnimator != null) {
14073c4c20fbe682cb4b3ef94f09afe0af09171583f3Michael Jurka            mAnimator.cancel();
14083c4c20fbe682cb4b3ef94f09afe0af09171583f3Michael Jurka        }
1409f16e571330f030e445c4f7f63f55d093337ffd87Adam Cohen
14103c4c20fbe682cb4b3ef94f09afe0af09171583f3Michael Jurka        mAnimator = new AnimatorSet();
1411de1af7661548692d370518528ff91c7422b9c8aeWinson Chung        // Workaround the AnimatorSet cancel bug...
1412de1af7661548692d370518528ff91c7422b9c8aeWinson Chung        mUnshrinkAnimationEnabled = false;
1413de1af7661548692d370518528ff91c7422b9c8aeWinson Chung        mShrinkAnimationEnabled = true;
1414742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka
14154b285c5a60028f7c9ce39cfb318a730d0ae95c27Adam Cohen        initAnimationArrays();
1416742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka
1417dee0589388ba0f6373912e18bf86243282fb3b9bMichael Jurka        for (int i = 0; i < screenCount; i++) {
1418f16e571330f030e445c4f7f63f55d093337ffd87Adam Cohen            final CellLayout cl = (CellLayout) getChildAt(i);
1419a985e598f6071f4caca15ba3cb6b2cd3e38b217dAdam Cohen
1420f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen            float rotation = (-i + 2) * WORKSPACE_ROTATION;
1421a985e598f6071f4caca15ba3cb6b2cd3e38b217dAdam Cohen            float rotationScaleX = (float) (1.0f / Math.cos(Math.PI * rotation / 180.0f));
1422a985e598f6071f4caca15ba3cb6b2cd3e38b217dAdam Cohen            float rotationScaleY = getYScaleForScreen(i);
1423a985e598f6071f4caca15ba3cb6b2cd3e38b217dAdam Cohen
14244b285c5a60028f7c9ce39cfb318a730d0ae95c27Adam Cohen            mOldAlphas[i] = cl.getAlpha();
14254b285c5a60028f7c9ce39cfb318a730d0ae95c27Adam Cohen            mNewAlphas[i] = finalAlpha;
14264b285c5a60028f7c9ce39cfb318a730d0ae95c27Adam Cohen            if (animated && (mOldAlphas[i] != 0f || mNewAlphas[i] != 0f)) {
1427abded66084680bb31cc7ea403c88f44f79a3c884Michael Jurka                // if the CellLayout will be visible during the animation, force building its
1428abded66084680bb31cc7ea403c88f44f79a3c884Michael Jurka                // hardware layer immediately so we don't see a blip later in the animation
1429abded66084680bb31cc7ea403c88f44f79a3c884Michael Jurka                cl.buildChildrenLayer();
1430abded66084680bb31cc7ea403c88f44f79a3c884Michael Jurka            }
14313e5ad58a6885273a60f8eb77aa9aee965eecdb2cMichael Jurka            if (animated) {
14324b285c5a60028f7c9ce39cfb318a730d0ae95c27Adam Cohen                mOldTranslationXs[i] = cl.getX();
14334b285c5a60028f7c9ce39cfb318a730d0ae95c27Adam Cohen                mOldTranslationYs[i] = cl.getY();
14344b285c5a60028f7c9ce39cfb318a730d0ae95c27Adam Cohen                mOldScaleXs[i] = cl.getScaleX();
14354b285c5a60028f7c9ce39cfb318a730d0ae95c27Adam Cohen                mOldScaleYs[i] = cl.getScaleY();
14364b285c5a60028f7c9ce39cfb318a730d0ae95c27Adam Cohen                mOldBackgroundAlphas[i] = cl.getBackgroundAlpha();
14374b285c5a60028f7c9ce39cfb318a730d0ae95c27Adam Cohen                mOldRotationYs[i] = cl.getRotationY();
14384b285c5a60028f7c9ce39cfb318a730d0ae95c27Adam Cohen                mNewTranslationXs[i] = x;
14394b285c5a60028f7c9ce39cfb318a730d0ae95c27Adam Cohen                mNewTranslationYs[i] = y;
1440c1a036b5ebacdeb564502bacc740fd85803a7638Michael Jurka                mNewScaleXs[i] = shrinkFactor * rotationScaleX;
1441c1a036b5ebacdeb564502bacc740fd85803a7638Michael Jurka                mNewScaleYs[i] = shrinkFactor * rotationScaleY;
14424b285c5a60028f7c9ce39cfb318a730d0ae95c27Adam Cohen                mNewBackgroundAlphas[i] = finalAlpha;
14434b285c5a60028f7c9ce39cfb318a730d0ae95c27Adam Cohen                mNewRotationYs[i] = rotation;
144479212d81361d1ad8c941c48f8323eb526643ca68Michael Jurka            } else {
1445742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                cl.setX((int)x);
1446742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                cl.setY((int)y);
1447c1a036b5ebacdeb564502bacc740fd85803a7638Michael Jurka                cl.setScaleX(shrinkFactor * rotationScaleX);
1448c1a036b5ebacdeb564502bacc740fd85803a7638Michael Jurka                cl.setScaleY(shrinkFactor * rotationScaleY);
1449883f55b1d261862b0de1b43af0b17d351761a9c6Michael Jurka                cl.setBackgroundAlpha(finalAlpha);
1450c1a036b5ebacdeb564502bacc740fd85803a7638Michael Jurka                cl.setFastAlpha(finalAlpha);
1451a985e598f6071f4caca15ba3cb6b2cd3e38b217dAdam Cohen                cl.setRotationY(rotation);
14523e5ad58a6885273a60f8eb77aa9aee965eecdb2cMichael Jurka                mShrinkAnimationListener.onAnimationEnd(null);
145379212d81361d1ad8c941c48f8323eb526643ca68Michael Jurka            }
1454dee0589388ba0f6373912e18bf86243282fb3b9bMichael Jurka            // increment newX for the next screen
1455742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka            x += scaledPageWidth + extraScaledSpacing;
1456dee0589388ba0f6373912e18bf86243282fb3b9bMichael Jurka        }
1457ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka
1458ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        float wallpaperOffset = 0.5f;
1459ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        Display display = mLauncher.getWindowManager().getDefaultDisplay();
1460ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        int wallpaperTravelHeight = (int) (display.getHeight() *
1461ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka                wallpaperTravelToScreenHeightRatio(display.getWidth(), display.getHeight()));
1462ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        float offsetFromCenter = (wallpaperTravelHeight / (float) mWallpaperHeight) / 2f;
1463ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka        boolean isLandscape = display.getWidth() > display.getHeight();
1464ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka
1465ff0e01b65dac8861d0a319fb643c67f8a573aa97Michael Jurka        // on phones, don't scroll the wallpaper horizontally or vertically when switching
1466ff0e01b65dac8861d0a319fb643c67f8a573aa97Michael Jurka        // to/from all apps
1467ff0e01b65dac8861d0a319fb643c67f8a573aa97Michael Jurka        final boolean enableWallpaperEffects =
1468ff0e01b65dac8861d0a319fb643c67f8a573aa97Michael Jurka            isHardwareAccelerated() && LauncherApplication.isScreenLarge();
1469b46a2d130b3d04df830402d579060b63db559ae3Winson Chung        if (enableWallpaperEffects) {
1470b46a2d130b3d04df830402d579060b63db559ae3Winson Chung            switch (shrinkState) {
1471b46a2d130b3d04df830402d579060b63db559ae3Winson Chung                // animating in
1472b46a2d130b3d04df830402d579060b63db559ae3Winson Chung                case SPRING_LOADED:
1473b46a2d130b3d04df830402d579060b63db559ae3Winson Chung                    wallpaperOffset = 0.5f;
1474b46a2d130b3d04df830402d579060b63db559ae3Winson Chung                    mWallpaperOffset.setVerticalCatchupConstant(isLandscape ? 0.34f : 0.32f);
1475b46a2d130b3d04df830402d579060b63db559ae3Winson Chung                    break;
1476d74c984fcc61f86160476a2543faff715e3ee2fdMichael Jurka                case SMALL:
1477b46a2d130b3d04df830402d579060b63db559ae3Winson Chung                    // allapps
1478b46a2d130b3d04df830402d579060b63db559ae3Winson Chung                    wallpaperOffset = 0.5f - offsetFromCenter;
1479b46a2d130b3d04df830402d579060b63db559ae3Winson Chung                    mWallpaperOffset.setVerticalCatchupConstant(isLandscape ? 0.34f : 0.32f);
1480b46a2d130b3d04df830402d579060b63db559ae3Winson Chung                    break;
1481b46a2d130b3d04df830402d579060b63db559ae3Winson Chung            }
1482ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        }
1483ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka
1484742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka        setLayoutScale(1.0f);
1485ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka        if (animated) {
1486b46a2d130b3d04df830402d579060b63db559ae3Winson Chung            if (enableWallpaperEffects) {
1487b46a2d130b3d04df830402d579060b63db559ae3Winson Chung                mWallpaperOffset.setHorizontalCatchupConstant(0.46f);
1488b46a2d130b3d04df830402d579060b63db559ae3Winson Chung                mWallpaperOffset.setOverrideHorizontalCatchupConstant(true);
1489b46a2d130b3d04df830402d579060b63db559ae3Winson Chung            }
1490ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka
1491ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            mSyncWallpaperOffsetWithScroll = false;
1492ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka
1493742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka            ValueAnimator animWithInterpolator =
1494742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                ValueAnimator.ofFloat(0f, 1f).setDuration(duration);
1495742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka            animWithInterpolator.setInterpolator(mZoomOutInterpolator);
1496742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka
1497742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka            final float oldHorizontalWallpaperOffset = getHorizontalWallpaperOffset();
1498742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka            final float oldVerticalWallpaperOffset = getVerticalWallpaperOffset();
1499742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka            final float newHorizontalWallpaperOffset = 0.5f;
1500742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka            final float newVerticalWallpaperOffset = wallpaperOffset;
1501c2e26a028d1829bdddb1e47aac12951e12ef83e0Michael Jurka            animWithInterpolator.addUpdateListener(new LauncherAnimatorUpdateListener() {
1502c2e26a028d1829bdddb1e47aac12951e12ef83e0Michael Jurka                public void onAnimationUpdate(float a, float b) {
1503de1af7661548692d370518528ff91c7422b9c8aeWinson Chung                    if (!mShrinkAnimationEnabled) return;
15044b285c5a60028f7c9ce39cfb318a730d0ae95c27Adam Cohen                    mTransitionProgress = b;
1505c4e772e4b3f21bde342e475ebc49b5b76b8f74e8Michael Jurka                    if (b == 0f) {
1506c4e772e4b3f21bde342e475ebc49b5b76b8f74e8Michael Jurka                        // an optimization, and required for correct behavior.
1507c4e772e4b3f21bde342e475ebc49b5b76b8f74e8Michael Jurka                        return;
1508c4e772e4b3f21bde342e475ebc49b5b76b8f74e8Michael Jurka                    }
1509a71cb1778dc0c7e76132d21296c58da777183e26Michael Jurka                    invalidate();
1510b46a2d130b3d04df830402d579060b63db559ae3Winson Chung                    if (enableWallpaperEffects) {
1511b46a2d130b3d04df830402d579060b63db559ae3Winson Chung                        setHorizontalWallpaperOffset(
1512742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                            a * oldHorizontalWallpaperOffset + b * newHorizontalWallpaperOffset);
1513b46a2d130b3d04df830402d579060b63db559ae3Winson Chung                        setVerticalWallpaperOffset(
1514742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                            a * oldVerticalWallpaperOffset + b * newVerticalWallpaperOffset);
1515b46a2d130b3d04df830402d579060b63db559ae3Winson Chung                    }
1516742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                    for (int i = 0; i < screenCount; i++) {
1517742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                        final CellLayout cl = (CellLayout) getChildAt(i);
1518742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                        cl.fastInvalidate();
15194b285c5a60028f7c9ce39cfb318a730d0ae95c27Adam Cohen                        cl.setFastX(a * mOldTranslationXs[i] + b * mNewTranslationXs[i]);
15204b285c5a60028f7c9ce39cfb318a730d0ae95c27Adam Cohen                        cl.setFastY(a * mOldTranslationYs[i] + b * mNewTranslationYs[i]);
15214b285c5a60028f7c9ce39cfb318a730d0ae95c27Adam Cohen                        cl.setFastScaleX(a * mOldScaleXs[i] + b * mNewScaleXs[i]);
15224b285c5a60028f7c9ce39cfb318a730d0ae95c27Adam Cohen                        cl.setFastScaleY(a * mOldScaleYs[i] + b * mNewScaleYs[i]);
1523742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                        cl.setFastBackgroundAlpha(
15244b285c5a60028f7c9ce39cfb318a730d0ae95c27Adam Cohen                                a * mOldBackgroundAlphas[i] + b * mNewBackgroundAlphas[i]);
15254b285c5a60028f7c9ce39cfb318a730d0ae95c27Adam Cohen                        cl.setFastAlpha(a * mOldAlphas[i] + b * mNewAlphas[i]);
15264b285c5a60028f7c9ce39cfb318a730d0ae95c27Adam Cohen                        cl.setFastRotationY(a * mOldRotationYs[i] + b * mNewRotationYs[i]);
1527742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                    }
1528742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                }
1529742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka            });
1530742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka            mAnimator.playTogether(animWithInterpolator);
1531bea15195346bab3c52b0156e92f2b71f0811b210Michael Jurka            mAnimator.addListener(mShrinkAnimationListener);
15323c4c20fbe682cb4b3ef94f09afe0af09171583f3Michael Jurka            mAnimator.start();
1533b46a2d130b3d04df830402d579060b63db559ae3Winson Chung        } else if (enableWallpaperEffects) {
1534ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            setVerticalWallpaperOffset(wallpaperOffset);
1535ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            setHorizontalWallpaperOffset(0.5f);
1536ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            updateWallpaperOffsetImmediately();
15373c4c20fbe682cb4b3ef94f09afe0af09171583f3Michael Jurka        }
1538dee0589388ba0f6373912e18bf86243282fb3b9bMichael Jurka        setChildrenDrawnWithCacheEnabled(true);
15398d006d5e144ae33e509ea42e0b9760ef6c5bc884Winson Chung
1540b9e14974ae5c03bd996bc102ed23a24126449990Michael Jurka        showBackgroundGradientForAllApps(animated);
1541dee0589388ba0f6373912e18bf86243282fb3b9bMichael Jurka    }
1542dee0589388ba0f6373912e18bf86243282fb3b9bMichael Jurka
1543c1a036b5ebacdeb564502bacc740fd85803a7638Michael Jurka    @Override
1544c1a036b5ebacdeb564502bacc740fd85803a7638Michael Jurka    protected void updateAdjacentPagesAlpha() {
1545c1a036b5ebacdeb564502bacc740fd85803a7638Michael Jurka        if (!isSmall()) {
1546c1a036b5ebacdeb564502bacc740fd85803a7638Michael Jurka            super.updateAdjacentPagesAlpha();
1547c1a036b5ebacdeb564502bacc740fd85803a7638Michael Jurka        }
1548c1a036b5ebacdeb564502bacc740fd85803a7638Michael Jurka    }
1549c1a036b5ebacdeb564502bacc740fd85803a7638Michael Jurka
155061033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen    /*
155161033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen     * This interpolator emulates the rate at which the perceived scale of an object changes
155261033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen     * as its distance from a camera increases. When this interpolator is applied to a scale
155361033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen     * animation on a view, it evokes the sense that the object is shrinking due to moving away
155461033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen     * from the camera.
155561033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen     */
155661033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen    static class ZInterpolator implements TimeInterpolator {
155761033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen        private float focalLength;
155861033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen
155961033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen        public ZInterpolator(float foc) {
156061033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen            focalLength = foc;
156161033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen        }
156261033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen
1563eed565d5126cb40b2a7ecdf5f6e8ac7a7464007bAdam Cohen        public float getInterpolation(float input) {
1564eed565d5126cb40b2a7ecdf5f6e8ac7a7464007bAdam Cohen            return (1.0f - focalLength / (focalLength + input)) /
156561033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen                (1.0f - focalLength / (focalLength + 1.0f));
1566cbbaf9862aa160c5e397cb49b554de20981a35feAdam Cohen        }
1567cbbaf9862aa160c5e397cb49b554de20981a35feAdam Cohen    }
1568cbbaf9862aa160c5e397cb49b554de20981a35feAdam Cohen
156961033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen    /*
157061033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen     * The exact reverse of ZInterpolator.
157161033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen     */
157261033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen    static class InverseZInterpolator implements TimeInterpolator {
157361033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen        private ZInterpolator zInterpolator;
157461033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen        public InverseZInterpolator(float foc) {
157561033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen            zInterpolator = new ZInterpolator(foc);
157661033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen        }
1577cbbaf9862aa160c5e397cb49b554de20981a35feAdam Cohen        public float getInterpolation(float input) {
157861033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen            return 1 - zInterpolator.getInterpolation(1 - input);
1579cbbaf9862aa160c5e397cb49b554de20981a35feAdam Cohen        }
1580cbbaf9862aa160c5e397cb49b554de20981a35feAdam Cohen    }
1581cbbaf9862aa160c5e397cb49b554de20981a35feAdam Cohen
158261033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen    /*
158361033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen     * ZInterpolator compounded with an ease-out.
158461033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen     */
158561033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen    static class ZoomOutInterpolator implements TimeInterpolator {
158661033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen        private final ZInterpolator zInterpolator = new ZInterpolator(0.2f);
1587ea57348cc8f4647f6bc35a42cd45662ddb828b92Michael Jurka        private final DecelerateInterpolator decelerate = new DecelerateInterpolator(1.8f);
158861033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen
158961033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen        public float getInterpolation(float input) {
159061033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen            return decelerate.getInterpolation(zInterpolator.getInterpolation(input));
159161033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen        }
159261033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen    }
159361033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen
159461033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen    /*
159561033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen     * InvereZInterpolator compounded with an ease-out.
159661033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen     */
159761033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen    static class ZoomInInterpolator implements TimeInterpolator {
159861033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen        private final InverseZInterpolator inverseZInterpolator = new InverseZInterpolator(0.35f);
159961033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen        private final DecelerateInterpolator decelerate = new DecelerateInterpolator(3.0f);
160061033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen
160161033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen        public float getInterpolation(float input) {
160261033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen            return decelerate.getInterpolation(inverseZInterpolator.getInterpolation(input));
160361033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen        }
160461033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen    }
160561033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen
160661033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen    private final ZoomOutInterpolator mZoomOutInterpolator = new ZoomOutInterpolator();
160761033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen    private final ZoomInInterpolator mZoomInInterpolator = new ZoomInInterpolator();
16083e7c7634531302271270c8cf418abc959d621cbcMichael Jurka
16093e7c7634531302271270c8cf418abc959d621cbcMichael Jurka    /*
16106639687cd67bab1aeef2a75e5c6bc458b20dc082Adam Cohen    *
16116639687cd67bab1aeef2a75e5c6bc458b20dc082Adam Cohen    * We call these methods (onDragStartedWithItemSpans/onDragStartedWithSize) whenever we
16126639687cd67bab1aeef2a75e5c6bc458b20dc082Adam Cohen    * start a drag in Launcher, regardless of whether the drag has ever entered the Workspace
16136639687cd67bab1aeef2a75e5c6bc458b20dc082Adam Cohen    *
16146639687cd67bab1aeef2a75e5c6bc458b20dc082Adam Cohen    * These methods mark the appropriate pages as accepting drops (which alters their visual
16156639687cd67bab1aeef2a75e5c6bc458b20dc082Adam Cohen    * appearance).
16166639687cd67bab1aeef2a75e5c6bc458b20dc082Adam Cohen    *
16176639687cd67bab1aeef2a75e5c6bc458b20dc082Adam Cohen    */
16186639687cd67bab1aeef2a75e5c6bc458b20dc082Adam Cohen    public void onDragStartedWithItem(View v) {
16196639687cd67bab1aeef2a75e5c6bc458b20dc082Adam Cohen        final Canvas canvas = new Canvas();
16206639687cd67bab1aeef2a75e5c6bc458b20dc082Adam Cohen
16216639687cd67bab1aeef2a75e5c6bc458b20dc082Adam Cohen        // We need to add extra padding to the bitmap to make room for the glow effect
16226639687cd67bab1aeef2a75e5c6bc458b20dc082Adam Cohen        final int bitmapPadding = HolographicOutlineHelper.MAX_OUTER_BLUR_RADIUS;
16236639687cd67bab1aeef2a75e5c6bc458b20dc082Adam Cohen
16246639687cd67bab1aeef2a75e5c6bc458b20dc082Adam Cohen        // The outline is used to visualize where the item will land if dropped
16256639687cd67bab1aeef2a75e5c6bc458b20dc082Adam Cohen        mDragOutline = createDragOutline(v, canvas, bitmapPadding);
16266639687cd67bab1aeef2a75e5c6bc458b20dc082Adam Cohen    }
16276639687cd67bab1aeef2a75e5c6bc458b20dc082Adam Cohen
1628d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka    public void onDragStartedWithItemSpans(int spanX, int spanY, Bitmap b) {
1629d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka        final Canvas canvas = new Canvas();
16303e7c7634531302271270c8cf418abc959d621cbcMichael Jurka
1631d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka        // We need to add extra padding to the bitmap to make room for the glow effect
163238b4f7c5eab773ad36048b5ab8713750dcaaf748Michael Jurka        final int bitmapPadding = HolographicOutlineHelper.MAX_OUTER_BLUR_RADIUS;
1633d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka
1634f12c75cb48f87955600c56ccbe0aac84b0c11b28Michael Jurka        CellLayout cl = (CellLayout) getChildAt(0);
16356639687cd67bab1aeef2a75e5c6bc458b20dc082Adam Cohen
16366639687cd67bab1aeef2a75e5c6bc458b20dc082Adam Cohen        int[] size = cl.cellSpansToSize(spanX, spanY);
16376639687cd67bab1aeef2a75e5c6bc458b20dc082Adam Cohen
1638d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka        // The outline is used to visualize where the item will land if dropped
16396639687cd67bab1aeef2a75e5c6bc458b20dc082Adam Cohen        mDragOutline = createDragOutline(b, canvas, bitmapPadding, size[0], size[1]);
16403e7c7634531302271270c8cf418abc959d621cbcMichael Jurka    }
16413e7c7634531302271270c8cf418abc959d621cbcMichael Jurka
16423e7c7634531302271270c8cf418abc959d621cbcMichael Jurka    // we call this method whenever a drag and drop in Launcher finishes, even if Workspace was
16433e7c7634531302271270c8cf418abc959d621cbcMichael Jurka    // never dragged over
16447bccb42f88cbbaf8cf180a876e8c5d5e306ce62aPatrick Dubroy    public void onDragStopped(boolean success) {
16457bccb42f88cbbaf8cf180a876e8c5d5e306ce62aPatrick Dubroy        // In the success case, DragController has already called onDragExit()
16467bccb42f88cbbaf8cf180a876e8c5d5e306ce62aPatrick Dubroy        if (!success) {
1647c0dcf597084d00e4c23a7fea5fd0738f6c095a6bAdam Cohen            doDragExit(null);
16487bccb42f88cbbaf8cf180a876e8c5d5e306ce62aPatrick Dubroy        }
16493e7c7634531302271270c8cf418abc959d621cbcMichael Jurka    }
16503e7c7634531302271270c8cf418abc959d621cbcMichael Jurka
16519c6de3d7c3e7d40e1e443b6fd69e3077ab9e9673Michael Jurka    // We call this when we trigger an unshrink by clicking on the CellLayout cl
16529c6de3d7c3e7d40e1e443b6fd69e3077ab9e9673Michael Jurka    public void unshrink(CellLayout clThatWasClicked) {
1653d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka        unshrink(clThatWasClicked, false);
1654d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka    }
1655d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka
1656d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka    public void unshrink(CellLayout clThatWasClicked, boolean springLoaded) {
16579c6de3d7c3e7d40e1e443b6fd69e3077ab9e9673Michael Jurka        int newCurrentPage = indexOfChild(clThatWasClicked);
1658d74c984fcc61f86160476a2543faff715e3ee2fdMichael Jurka        if (isSmall()) {
1659d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka            if (springLoaded) {
1660b26f3d6a8c62e7c1a603b6c7979375d8dd4f20d4Winson Chung                setLayoutScale(mSpringLoadedShrinkFactor);
1661d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka            }
16628c920dd3683d752aa4c43e964831ce53f9b72887Michael Jurka            scrollToNewPageWithoutMovingPages(newCurrentPage);
1663d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka            unshrink(true, springLoaded);
1664d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka        }
1665d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka    }
1666d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka
1667d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka
1668d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka    public void enterSpringLoadedDragMode(CellLayout clThatWasClicked) {
1669d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka        unshrink(clThatWasClicked, true);
1670d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka    }
1671d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka
1672d74c984fcc61f86160476a2543faff715e3ee2fdMichael Jurka    public void exitSpringLoadedDragMode(State shrinkState) {
1673d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka        shrink(shrinkState);
1674dee0589388ba0f6373912e18bf86243282fb3b9bMichael Jurka    }
1675dee0589388ba0f6373912e18bf86243282fb3b9bMichael Jurka
1676758a9239f045ff4eb85c421a2f67a720b5b3c621Patrick Dubroy    public void exitWidgetResizeMode() {
1677716b51e030f9c6ed34af2b947760e46a280c65a6Adam Cohen        DragLayer dragLayer = mLauncher.getDragLayer();
16786788269814a678af976dfc7d6135993e172ce586Adam Cohen        dragLayer.clearAllResizeFrames();
1679758a9239f045ff4eb85c421a2f67a720b5b3c621Patrick Dubroy    }
1680758a9239f045ff4eb85c421a2f67a720b5b3c621Patrick Dubroy
16814cb3724a2c1e5f278e1531d643accc40fcd8e219Michael Jurka    void unshrink(boolean animated) {
1682d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka        unshrink(animated, false);
1683d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka    }
1684d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka
16854b285c5a60028f7c9ce39cfb318a730d0ae95c27Adam Cohen    private void initAnimationArrays() {
16864b285c5a60028f7c9ce39cfb318a730d0ae95c27Adam Cohen        final int childCount = getChildCount();
16874b285c5a60028f7c9ce39cfb318a730d0ae95c27Adam Cohen        if (mOldTranslationXs != null) return;
16884b285c5a60028f7c9ce39cfb318a730d0ae95c27Adam Cohen        mOldTranslationXs = new float[childCount];
16894b285c5a60028f7c9ce39cfb318a730d0ae95c27Adam Cohen        mOldTranslationYs = new float[childCount];
16904b285c5a60028f7c9ce39cfb318a730d0ae95c27Adam Cohen        mOldScaleXs = new float[childCount];
16914b285c5a60028f7c9ce39cfb318a730d0ae95c27Adam Cohen        mOldScaleYs = new float[childCount];
16924b285c5a60028f7c9ce39cfb318a730d0ae95c27Adam Cohen        mOldBackgroundAlphas = new float[childCount];
16934b285c5a60028f7c9ce39cfb318a730d0ae95c27Adam Cohen        mOldBackgroundAlphaMultipliers = new float[childCount];
16944b285c5a60028f7c9ce39cfb318a730d0ae95c27Adam Cohen        mOldAlphas = new float[childCount];
16954b285c5a60028f7c9ce39cfb318a730d0ae95c27Adam Cohen        mOldRotationYs = new float[childCount];
16964b285c5a60028f7c9ce39cfb318a730d0ae95c27Adam Cohen        mNewTranslationXs = new float[childCount];
16974b285c5a60028f7c9ce39cfb318a730d0ae95c27Adam Cohen        mNewTranslationYs = new float[childCount];
16984b285c5a60028f7c9ce39cfb318a730d0ae95c27Adam Cohen        mNewScaleXs = new float[childCount];
16994b285c5a60028f7c9ce39cfb318a730d0ae95c27Adam Cohen        mNewScaleYs = new float[childCount];
17004b285c5a60028f7c9ce39cfb318a730d0ae95c27Adam Cohen        mNewBackgroundAlphas = new float[childCount];
17014b285c5a60028f7c9ce39cfb318a730d0ae95c27Adam Cohen        mNewBackgroundAlphaMultipliers = new float[childCount];
17024b285c5a60028f7c9ce39cfb318a730d0ae95c27Adam Cohen        mNewAlphas = new float[childCount];
17034b285c5a60028f7c9ce39cfb318a730d0ae95c27Adam Cohen        mNewRotationYs = new float[childCount];
17044b285c5a60028f7c9ce39cfb318a730d0ae95c27Adam Cohen    }
17054b285c5a60028f7c9ce39cfb318a730d0ae95c27Adam Cohen
1706d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka    void unshrink(boolean animated, boolean springLoaded) {
170799633da90012dc732cbc12a96b33e17abcecb464Michael Jurka        if (mFirstLayout) {
170899633da90012dc732cbc12a96b33e17abcecb464Michael Jurka            // (mFirstLayout == "first layout has not happened yet")
170999633da90012dc732cbc12a96b33e17abcecb464Michael Jurka            // cancel any pending shrinks that were set earlier
171099633da90012dc732cbc12a96b33e17abcecb464Michael Jurka            mSwitchStateAfterFirstLayout = false;
171199633da90012dc732cbc12a96b33e17abcecb464Michael Jurka            mStateAfterFirstLayout = State.NORMAL;
171299633da90012dc732cbc12a96b33e17abcecb464Michael Jurka            return;
171399633da90012dc732cbc12a96b33e17abcecb464Michael Jurka        }
171499633da90012dc732cbc12a96b33e17abcecb464Michael Jurka
1715d74c984fcc61f86160476a2543faff715e3ee2fdMichael Jurka        if (isSmall()) {
1716d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka            float finalScaleFactor = 1.0f;
1717d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka            float finalBackgroundAlpha = 0.0f;
1718d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka            if (springLoaded) {
1719b26f3d6a8c62e7c1a603b6c7979375d8dd4f20d4Winson Chung                finalScaleFactor = mSpringLoadedShrinkFactor;
1720d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka                finalBackgroundAlpha = 1.0f;
17213384c7be3cf735f68a90d835627350fa48b94d48Adam Cohen                mState = State.SPRING_LOADED;
1722d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka            } else {
17233384c7be3cf735f68a90d835627350fa48b94d48Adam Cohen                mState = State.NORMAL;
1724d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka            }
17253c4c20fbe682cb4b3ef94f09afe0af09171583f3Michael Jurka            if (mAnimator != null) {
17263c4c20fbe682cb4b3ef94f09afe0af09171583f3Michael Jurka                mAnimator.cancel();
17273c4c20fbe682cb4b3ef94f09afe0af09171583f3Michael Jurka            }
17286b879f0a5885274a85333531e091283405d490ccAdam Lesinski
17293c4c20fbe682cb4b3ef94f09afe0af09171583f3Michael Jurka            mAnimator = new AnimatorSet();
1730de1af7661548692d370518528ff91c7422b9c8aeWinson Chung
1731de1af7661548692d370518528ff91c7422b9c8aeWinson Chung            // Workaround the AnimatorSet cancel bug...
1732de1af7661548692d370518528ff91c7422b9c8aeWinson Chung            mShrinkAnimationEnabled = false;
1733de1af7661548692d370518528ff91c7422b9c8aeWinson Chung            mUnshrinkAnimationEnabled = true;
1734de1af7661548692d370518528ff91c7422b9c8aeWinson Chung
1735b0f28bd9a52fa4e343c8299d1c3e225d8e01c1e9Michael Jurka            final int screenCount = getChildCount();
17364b285c5a60028f7c9ce39cfb318a730d0ae95c27Adam Cohen            initAnimationArrays();
17374cb3724a2c1e5f278e1531d643accc40fcd8e219Michael Jurka
17384cb3724a2c1e5f278e1531d643accc40fcd8e219Michael Jurka            final int duration = getResources().getInteger(R.integer.config_workspaceUnshrinkTime);
1739b0f28bd9a52fa4e343c8299d1c3e225d8e01c1e9Michael Jurka            for (int i = 0; i < screenCount; i++) {
17407247f6315baf16eacb3286f21bd80321385c1defPatrick Dubroy                final CellLayout cl = (CellLayout)getChildAt(i);
1741785d2eb2b8d7072c8124300dd9168ff51a91cf38Winson Chung                float finalAlphaValue = 0f;
1742785d2eb2b8d7072c8124300dd9168ff51a91cf38Winson Chung                float rotation = 0f;
1743a2eb17095dcffa75c1e9681fdc318fe6e0564321Michael Jurka                if (LauncherApplication.isScreenLarge()) {
1744785d2eb2b8d7072c8124300dd9168ff51a91cf38Winson Chung                    finalAlphaValue = (i == mCurrentPage) ? 1.0f : 0.0f;
1745785d2eb2b8d7072c8124300dd9168ff51a91cf38Winson Chung
1746785d2eb2b8d7072c8124300dd9168ff51a91cf38Winson Chung                    if (i < mCurrentPage) {
1747785d2eb2b8d7072c8124300dd9168ff51a91cf38Winson Chung                        rotation = WORKSPACE_ROTATION;
1748785d2eb2b8d7072c8124300dd9168ff51a91cf38Winson Chung                    } else if (i > mCurrentPage) {
1749785d2eb2b8d7072c8124300dd9168ff51a91cf38Winson Chung                        rotation = -WORKSPACE_ROTATION;
1750785d2eb2b8d7072c8124300dd9168ff51a91cf38Winson Chung                    }
1751785d2eb2b8d7072c8124300dd9168ff51a91cf38Winson Chung                } else {
1752785d2eb2b8d7072c8124300dd9168ff51a91cf38Winson Chung                    // Don't hide the side panes on the phone if we don't also update the side pages
1753785d2eb2b8d7072c8124300dd9168ff51a91cf38Winson Chung                    // alpha.  See screenScrolled().
1754785d2eb2b8d7072c8124300dd9168ff51a91cf38Winson Chung                    finalAlphaValue = 1f;
1755785d2eb2b8d7072c8124300dd9168ff51a91cf38Winson Chung                }
1756b26f3d6a8c62e7c1a603b6c7979375d8dd4f20d4Winson Chung                float finalAlphaMultiplierValue = 1f;
1757f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen
175863257c110a4ee54d5e8872c471cce254cf613c7aWinson Chung                float translation = 0f;
175963257c110a4ee54d5e8872c471cce254cf613c7aWinson Chung
176063257c110a4ee54d5e8872c471cce254cf613c7aWinson Chung                // If the screen is not xlarge, then don't rotate the CellLayouts
176163257c110a4ee54d5e8872c471cce254cf613c7aWinson Chung                // NOTE: If we don't update the side pages alpha, then we should not hide the side
176263257c110a4ee54d5e8872c471cce254cf613c7aWinson Chung                //       pages. see unshrink().
1763a2eb17095dcffa75c1e9681fdc318fe6e0564321Michael Jurka                if (LauncherApplication.isScreenLarge()) {
176463257c110a4ee54d5e8872c471cce254cf613c7aWinson Chung                    translation = getOffsetXForRotation(rotation, cl.getWidth(), cl.getHeight());
176563257c110a4ee54d5e8872c471cce254cf613c7aWinson Chung                }
1766cbbaf9862aa160c5e397cb49b554de20981a35feAdam Cohen
17674b285c5a60028f7c9ce39cfb318a730d0ae95c27Adam Cohen                mOldAlphas[i] = cl.getAlpha();
17684b285c5a60028f7c9ce39cfb318a730d0ae95c27Adam Cohen                mNewAlphas[i] = finalAlphaValue;
17693e5ad58a6885273a60f8eb77aa9aee965eecdb2cMichael Jurka                if (animated) {
17704b285c5a60028f7c9ce39cfb318a730d0ae95c27Adam Cohen                    mOldTranslationXs[i] = cl.getTranslationX();
17714b285c5a60028f7c9ce39cfb318a730d0ae95c27Adam Cohen                    mOldTranslationYs[i] = cl.getTranslationY();
17724b285c5a60028f7c9ce39cfb318a730d0ae95c27Adam Cohen                    mOldScaleXs[i] = cl.getScaleX();
17734b285c5a60028f7c9ce39cfb318a730d0ae95c27Adam Cohen                    mOldScaleYs[i] = cl.getScaleY();
17744b285c5a60028f7c9ce39cfb318a730d0ae95c27Adam Cohen                    mOldBackgroundAlphas[i] = cl.getBackgroundAlpha();
17754b285c5a60028f7c9ce39cfb318a730d0ae95c27Adam Cohen                    mOldBackgroundAlphaMultipliers[i] = cl.getBackgroundAlphaMultiplier();
17764b285c5a60028f7c9ce39cfb318a730d0ae95c27Adam Cohen                    mOldRotationYs[i] = cl.getRotationY();
17774b285c5a60028f7c9ce39cfb318a730d0ae95c27Adam Cohen
17784b285c5a60028f7c9ce39cfb318a730d0ae95c27Adam Cohen                    mNewTranslationXs[i] = translation;
17794b285c5a60028f7c9ce39cfb318a730d0ae95c27Adam Cohen                    mNewTranslationYs[i] = 0f;
17804b285c5a60028f7c9ce39cfb318a730d0ae95c27Adam Cohen                    mNewScaleXs[i] = finalScaleFactor;
17814b285c5a60028f7c9ce39cfb318a730d0ae95c27Adam Cohen                    mNewScaleYs[i] = finalScaleFactor;
17824b285c5a60028f7c9ce39cfb318a730d0ae95c27Adam Cohen                    mNewBackgroundAlphas[i] = finalBackgroundAlpha;
17834b285c5a60028f7c9ce39cfb318a730d0ae95c27Adam Cohen                    mNewBackgroundAlphaMultipliers[i] = finalAlphaMultiplierValue;
17844b285c5a60028f7c9ce39cfb318a730d0ae95c27Adam Cohen                    mNewRotationYs[i] = rotation;
17854cb3724a2c1e5f278e1531d643accc40fcd8e219Michael Jurka                } else {
17866b879f0a5885274a85333531e091283405d490ccAdam Lesinski                    cl.setTranslationX(translation);
17874cb3724a2c1e5f278e1531d643accc40fcd8e219Michael Jurka                    cl.setTranslationY(0.0f);
1788d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka                    cl.setScaleX(finalScaleFactor);
1789d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka                    cl.setScaleY(finalScaleFactor);
17905f1c509d5ad1954a7e38e77db4d5f27c7345fd39Michael Jurka                    cl.setBackgroundAlpha(0.0f);
1791ae222ab933a8d035394618e3782dd529cf328f08Winson Chung                    cl.setBackgroundAlphaMultiplier(finalAlphaMultiplierValue);
1792f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen                    cl.setAlpha(finalAlphaValue);
1793f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen                    cl.setRotationY(rotation);
17943e5ad58a6885273a60f8eb77aa9aee965eecdb2cMichael Jurka                    mUnshrinkAnimationListener.onAnimationEnd(null);
17954cb3724a2c1e5f278e1531d643accc40fcd8e219Michael Jurka                }
1796b0f28bd9a52fa4e343c8299d1c3e225d8e01c1e9Michael Jurka            }
1797ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka            Display display = mLauncher.getWindowManager().getDefaultDisplay();
1798ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka            boolean isLandscape = display.getWidth() > display.getHeight();
1799ff0e01b65dac8861d0a319fb643c67f8a573aa97Michael Jurka            // on phones, don't scroll the wallpaper horizontally or vertically when switching
1800ff0e01b65dac8861d0a319fb643c67f8a573aa97Michael Jurka            // to/from all apps
1801ff0e01b65dac8861d0a319fb643c67f8a573aa97Michael Jurka            final boolean enableWallpaperEffects =
1802ff0e01b65dac8861d0a319fb643c67f8a573aa97Michael Jurka                isHardwareAccelerated() && LauncherApplication.isScreenLarge();
1803b46a2d130b3d04df830402d579060b63db559ae3Winson Chung            if (enableWallpaperEffects) {
1804d74c984fcc61f86160476a2543faff715e3ee2fdMichael Jurka                switch (mState) {
1805b46a2d130b3d04df830402d579060b63db559ae3Winson Chung                    // animating out
1806b46a2d130b3d04df830402d579060b63db559ae3Winson Chung                    case SPRING_LOADED:
1807b46a2d130b3d04df830402d579060b63db559ae3Winson Chung                        if (animated) {
1808b46a2d130b3d04df830402d579060b63db559ae3Winson Chung                            mWallpaperOffset.setHorizontalCatchupConstant(isLandscape ? 0.49f : 0.46f);
1809b46a2d130b3d04df830402d579060b63db559ae3Winson Chung                            mWallpaperOffset.setVerticalCatchupConstant(isLandscape ? 0.49f : 0.46f);
1810b46a2d130b3d04df830402d579060b63db559ae3Winson Chung                            mWallpaperOffset.setOverrideHorizontalCatchupConstant(true);
1811b46a2d130b3d04df830402d579060b63db559ae3Winson Chung                        }
1812b46a2d130b3d04df830402d579060b63db559ae3Winson Chung                        break;
1813d74c984fcc61f86160476a2543faff715e3ee2fdMichael Jurka                    case SMALL:
1814b46a2d130b3d04df830402d579060b63db559ae3Winson Chung                        // all apps
1815b46a2d130b3d04df830402d579060b63db559ae3Winson Chung                        if (animated) {
1816b46a2d130b3d04df830402d579060b63db559ae3Winson Chung                            mWallpaperOffset.setHorizontalCatchupConstant(isLandscape ? 0.65f : 0.65f);
1817b46a2d130b3d04df830402d579060b63db559ae3Winson Chung                            mWallpaperOffset.setVerticalCatchupConstant(isLandscape ? 0.65f : 0.65f);
1818b46a2d130b3d04df830402d579060b63db559ae3Winson Chung                            mWallpaperOffset.setOverrideHorizontalCatchupConstant(true);
1819b46a2d130b3d04df830402d579060b63db559ae3Winson Chung                        }
1820b46a2d130b3d04df830402d579060b63db559ae3Winson Chung                        break;
1821b46a2d130b3d04df830402d579060b63db559ae3Winson Chung                }
1822ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka            }
1823ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            if (animated) {
1824742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                ValueAnimator animWithInterpolator =
1825742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                    ValueAnimator.ofFloat(0f, 1f).setDuration(duration);
1826742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                animWithInterpolator.setInterpolator(mZoomInInterpolator);
1827742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka
182863257c110a4ee54d5e8872c471cce254cf613c7aWinson Chung                final float oldHorizontalWallpaperOffset = enableWallpaperEffects ?
182963257c110a4ee54d5e8872c471cce254cf613c7aWinson Chung                        getHorizontalWallpaperOffset() : 0;
183063257c110a4ee54d5e8872c471cce254cf613c7aWinson Chung                final float oldVerticalWallpaperOffset = enableWallpaperEffects ?
183163257c110a4ee54d5e8872c471cce254cf613c7aWinson Chung                        getVerticalWallpaperOffset() : 0;
183263257c110a4ee54d5e8872c471cce254cf613c7aWinson Chung                final float newHorizontalWallpaperOffset = enableWallpaperEffects ?
183363257c110a4ee54d5e8872c471cce254cf613c7aWinson Chung                        wallpaperOffsetForCurrentScroll() : 0;
183463257c110a4ee54d5e8872c471cce254cf613c7aWinson Chung                final float newVerticalWallpaperOffset = enableWallpaperEffects ? 0.5f : 0;
1835c2e26a028d1829bdddb1e47aac12951e12ef83e0Michael Jurka                animWithInterpolator.addUpdateListener(new LauncherAnimatorUpdateListener() {
1836c2e26a028d1829bdddb1e47aac12951e12ef83e0Michael Jurka                    public void onAnimationUpdate(float a, float b) {
1837de1af7661548692d370518528ff91c7422b9c8aeWinson Chung                        if (!mUnshrinkAnimationEnabled) return;
18384b285c5a60028f7c9ce39cfb318a730d0ae95c27Adam Cohen                        mTransitionProgress = b;
1839c4e772e4b3f21bde342e475ebc49b5b76b8f74e8Michael Jurka                        if (b == 0f) {
1840c4e772e4b3f21bde342e475ebc49b5b76b8f74e8Michael Jurka                            // an optimization, but not required
1841c4e772e4b3f21bde342e475ebc49b5b76b8f74e8Michael Jurka                            return;
1842c4e772e4b3f21bde342e475ebc49b5b76b8f74e8Michael Jurka                        }
1843280969cd77da6c0e712a45287ae436bfc42a5401Michael Jurka                        invalidate();
1844b46a2d130b3d04df830402d579060b63db559ae3Winson Chung                        if (enableWallpaperEffects) {
1845b46a2d130b3d04df830402d579060b63db559ae3Winson Chung                            setHorizontalWallpaperOffset(a * oldHorizontalWallpaperOffset
1846b46a2d130b3d04df830402d579060b63db559ae3Winson Chung                                    + b * newHorizontalWallpaperOffset);
1847b46a2d130b3d04df830402d579060b63db559ae3Winson Chung                            setVerticalWallpaperOffset(a * oldVerticalWallpaperOffset
1848b46a2d130b3d04df830402d579060b63db559ae3Winson Chung                                    + b * newVerticalWallpaperOffset);
1849b46a2d130b3d04df830402d579060b63db559ae3Winson Chung                        }
1850742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                        for (int i = 0; i < screenCount; i++) {
1851742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                            final CellLayout cl = (CellLayout) getChildAt(i);
1852742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                            cl.fastInvalidate();
1853742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                            cl.setFastTranslationX(
18544b285c5a60028f7c9ce39cfb318a730d0ae95c27Adam Cohen                                    a * mOldTranslationXs[i] + b * mNewTranslationXs[i]);
1855742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                            cl.setFastTranslationY(
18564b285c5a60028f7c9ce39cfb318a730d0ae95c27Adam Cohen                                    a * mOldTranslationYs[i] + b * mNewTranslationYs[i]);
18574b285c5a60028f7c9ce39cfb318a730d0ae95c27Adam Cohen                            cl.setFastScaleX(a * mOldScaleXs[i] + b * mNewScaleXs[i]);
18584b285c5a60028f7c9ce39cfb318a730d0ae95c27Adam Cohen                            cl.setFastScaleY(a * mOldScaleYs[i] + b * mNewScaleYs[i]);
1859742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                            cl.setFastBackgroundAlpha(
18604b285c5a60028f7c9ce39cfb318a730d0ae95c27Adam Cohen                                    a * mOldBackgroundAlphas[i] + b * mNewBackgroundAlphas[i]);
18614b285c5a60028f7c9ce39cfb318a730d0ae95c27Adam Cohen                            cl.setBackgroundAlphaMultiplier(a * mOldBackgroundAlphaMultipliers[i] +
18624b285c5a60028f7c9ce39cfb318a730d0ae95c27Adam Cohen                                    b * mNewBackgroundAlphaMultipliers[i]);
18634b285c5a60028f7c9ce39cfb318a730d0ae95c27Adam Cohen                            cl.setFastAlpha(a * mOldAlphas[i] + b * mNewAlphas[i]);
1864742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                        }
1865742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                    }
1866742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                });
1867742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka
1868742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                ValueAnimator rotationAnim =
1869742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                    ValueAnimator.ofFloat(0f, 1f).setDuration(duration);
1870742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                rotationAnim.setInterpolator(new DecelerateInterpolator(2.0f));
1871c2e26a028d1829bdddb1e47aac12951e12ef83e0Michael Jurka                rotationAnim.addUpdateListener(new LauncherAnimatorUpdateListener() {
1872c2e26a028d1829bdddb1e47aac12951e12ef83e0Michael Jurka                    public void onAnimationUpdate(float a, float b) {
1873de1af7661548692d370518528ff91c7422b9c8aeWinson Chung                        if (!mUnshrinkAnimationEnabled) return;
1874742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                        // don't invalidate workspace because we did it above
1875c4e772e4b3f21bde342e475ebc49b5b76b8f74e8Michael Jurka                        if (b == 0f) {
1876c4e772e4b3f21bde342e475ebc49b5b76b8f74e8Michael Jurka                            // an optimization, but not required
1877c4e772e4b3f21bde342e475ebc49b5b76b8f74e8Michael Jurka                            return;
1878c4e772e4b3f21bde342e475ebc49b5b76b8f74e8Michael Jurka                        }
1879742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                        for (int i = 0; i < screenCount; i++) {
1880742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                            final CellLayout cl = (CellLayout) getChildAt(i);
18814b285c5a60028f7c9ce39cfb318a730d0ae95c27Adam Cohen                            cl.setFastRotationY(a * mOldRotationYs[i] + b * mNewRotationYs[i]);
1882742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                        }
1883742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                    }
1884742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                });
18856b879f0a5885274a85333531e091283405d490ccAdam Lesinski
1886742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                mAnimator.playTogether(animWithInterpolator, rotationAnim);
1887c86756c20196e5c907df01fe0fc9193ffb934082Michael Jurka                // If we call this when we're not animated, onAnimationEnd is never called on
1888c86756c20196e5c907df01fe0fc9193ffb934082Michael Jurka                // the listener; make sure we only use the listener when we're actually animating
18893c4c20fbe682cb4b3ef94f09afe0af09171583f3Michael Jurka                mAnimator.addListener(mUnshrinkAnimationListener);
18903c4c20fbe682cb4b3ef94f09afe0af09171583f3Michael Jurka                mAnimator.start();
1891ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka            } else {
1892b46a2d130b3d04df830402d579060b63db559ae3Winson Chung                if (enableWallpaperEffects) {
1893b46a2d130b3d04df830402d579060b63db559ae3Winson Chung                    setHorizontalWallpaperOffset(wallpaperOffsetForCurrentScroll());
1894b46a2d130b3d04df830402d579060b63db559ae3Winson Chung                    setVerticalWallpaperOffset(0.5f);
1895b46a2d130b3d04df830402d579060b63db559ae3Winson Chung                    updateWallpaperOffsetImmediately();
1896b46a2d130b3d04df830402d579060b63db559ae3Winson Chung                }
1897c86756c20196e5c907df01fe0fc9193ffb934082Michael Jurka            }
1898dee0589388ba0f6373912e18bf86243282fb3b9bMichael Jurka        }
18998d006d5e144ae33e509ea42e0b9760ef6c5bc884Winson Chung
1900557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung        hideBackgroundGradient(springLoaded ? getResources().getInteger(
1901b9e14974ae5c03bd996bc102ed23a24126449990Michael Jurka                R.integer.config_appsCustomizeSpringLoadedBgAlpha) / 100f : 0f, animated);
1902dee0589388ba0f6373912e18bf86243282fb3b9bMichael Jurka    }
1903dee0589388ba0f6373912e18bf86243282fb3b9bMichael Jurka
19044be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato    /**
19054be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato     * Draw the View v into the given Canvas.
19064be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato     *
19074be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato     * @param v the view to draw
19084be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato     * @param destCanvas the canvas to draw on
19094be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato     * @param padding the horizontal and vertical padding to use when drawing
19104be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato     */
1911ac8c87687b8e063c981f28cb31bab2cc110f26ccAdam Cohen    private void drawDragView(View v, Canvas destCanvas, int padding, boolean pruneToDrawable) {
19124be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato        final Rect clipRect = mTempRect;
19134be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato        v.getDrawingRect(clipRect);
19144be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato
1915ac8c87687b8e063c981f28cb31bab2cc110f26ccAdam Cohen        destCanvas.save();
1916ac8c87687b8e063c981f28cb31bab2cc110f26ccAdam Cohen        if (v instanceof TextView && pruneToDrawable) {
1917ac8c87687b8e063c981f28cb31bab2cc110f26ccAdam Cohen            Drawable d = ((TextView) v).getCompoundDrawables()[1];
1918ac8c87687b8e063c981f28cb31bab2cc110f26ccAdam Cohen            clipRect.set(0, 0, d.getIntrinsicWidth() + padding, d.getIntrinsicHeight() + padding);
1919ac8c87687b8e063c981f28cb31bab2cc110f26ccAdam Cohen            destCanvas.translate(padding / 2, padding / 2);
1920ac8c87687b8e063c981f28cb31bab2cc110f26ccAdam Cohen            d.draw(destCanvas);
1921ac8c87687b8e063c981f28cb31bab2cc110f26ccAdam Cohen        } else {
1922ac8c87687b8e063c981f28cb31bab2cc110f26ccAdam Cohen            if (v instanceof FolderIcon) {
1923ac8c87687b8e063c981f28cb31bab2cc110f26ccAdam Cohen                clipRect.bottom = getResources().getDimensionPixelSize(R.dimen.folder_preview_size);
1924ac8c87687b8e063c981f28cb31bab2cc110f26ccAdam Cohen            } else if (v instanceof BubbleTextView) {
1925ac8c87687b8e063c981f28cb31bab2cc110f26ccAdam Cohen                final BubbleTextView tv = (BubbleTextView) v;
1926ac8c87687b8e063c981f28cb31bab2cc110f26ccAdam Cohen                clipRect.bottom = tv.getExtendedPaddingTop() - (int) BubbleTextView.PADDING_V +
1927ac8c87687b8e063c981f28cb31bab2cc110f26ccAdam Cohen                        tv.getLayout().getLineTop(0);
1928ac8c87687b8e063c981f28cb31bab2cc110f26ccAdam Cohen            } else if (v instanceof TextView) {
1929ac8c87687b8e063c981f28cb31bab2cc110f26ccAdam Cohen                final TextView tv = (TextView) v;
1930ac8c87687b8e063c981f28cb31bab2cc110f26ccAdam Cohen                clipRect.bottom = tv.getExtendedPaddingTop() - tv.getCompoundDrawablePadding() +
1931ac8c87687b8e063c981f28cb31bab2cc110f26ccAdam Cohen                        tv.getLayout().getLineTop(0);
1932ac8c87687b8e063c981f28cb31bab2cc110f26ccAdam Cohen            }
1933ac8c87687b8e063c981f28cb31bab2cc110f26ccAdam Cohen            destCanvas.translate(-v.getScrollX() + padding / 2, -v.getScrollY() + padding / 2);
1934ac8c87687b8e063c981f28cb31bab2cc110f26ccAdam Cohen            destCanvas.clipRect(clipRect, Op.REPLACE);
1935ac8c87687b8e063c981f28cb31bab2cc110f26ccAdam Cohen            v.draw(destCanvas);
19364be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato        }
1937ac8c87687b8e063c981f28cb31bab2cc110f26ccAdam Cohen        destCanvas.restore();
1938ac8c87687b8e063c981f28cb31bab2cc110f26ccAdam Cohen    }
19394be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato
1940ac8c87687b8e063c981f28cb31bab2cc110f26ccAdam Cohen    /**
1941ac8c87687b8e063c981f28cb31bab2cc110f26ccAdam Cohen     * Returns a new bitmap to show when the given View is being dragged around.
1942ac8c87687b8e063c981f28cb31bab2cc110f26ccAdam Cohen     * Responsibility for the bitmap is transferred to the caller.
1943ac8c87687b8e063c981f28cb31bab2cc110f26ccAdam Cohen     */
1944ac8c87687b8e063c981f28cb31bab2cc110f26ccAdam Cohen    public Bitmap createDragBitmap(View v, Canvas canvas, int padding) {
1945ac8c87687b8e063c981f28cb31bab2cc110f26ccAdam Cohen        final int outlineColor = getResources().getColor(R.color.drag_outline_color);
1946ac8c87687b8e063c981f28cb31bab2cc110f26ccAdam Cohen        Bitmap b;
19474be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato
1948ac8c87687b8e063c981f28cb31bab2cc110f26ccAdam Cohen        if (v instanceof TextView) {
1949ac8c87687b8e063c981f28cb31bab2cc110f26ccAdam Cohen            Drawable d = ((TextView) v).getCompoundDrawables()[1];
1950ac8c87687b8e063c981f28cb31bab2cc110f26ccAdam Cohen            b = Bitmap.createBitmap(d.getIntrinsicWidth() + padding,
1951ac8c87687b8e063c981f28cb31bab2cc110f26ccAdam Cohen                    d.getIntrinsicHeight() + padding, Bitmap.Config.ARGB_8888);
1952ac8c87687b8e063c981f28cb31bab2cc110f26ccAdam Cohen        } else {
1953ac8c87687b8e063c981f28cb31bab2cc110f26ccAdam Cohen            b = Bitmap.createBitmap(
1954ac8c87687b8e063c981f28cb31bab2cc110f26ccAdam Cohen                    v.getWidth() + padding, v.getHeight() + padding, Bitmap.Config.ARGB_8888);
1955ac8c87687b8e063c981f28cb31bab2cc110f26ccAdam Cohen        }
1956ac8c87687b8e063c981f28cb31bab2cc110f26ccAdam Cohen
1957ac8c87687b8e063c981f28cb31bab2cc110f26ccAdam Cohen        canvas.setBitmap(b);
1958ac8c87687b8e063c981f28cb31bab2cc110f26ccAdam Cohen        drawDragView(v, canvas, padding, true);
1959ac8c87687b8e063c981f28cb31bab2cc110f26ccAdam Cohen        mOutlineHelper.applyOuterBlur(b, canvas, outlineColor);
1960ac8c87687b8e063c981f28cb31bab2cc110f26ccAdam Cohen
1961ac8c87687b8e063c981f28cb31bab2cc110f26ccAdam Cohen        return b;
19624be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato    }
19634be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato
19644be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato    /**
19654be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato     * Returns a new bitmap to be used as the object outline, e.g. to visualize the drop location.
19664be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato     * Responsibility for the bitmap is transferred to the caller.
19674be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato     */
19684be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato    private Bitmap createDragOutline(View v, Canvas canvas, int padding) {
19694be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato        final int outlineColor = getResources().getColor(R.color.drag_outline_color);
19704be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato        final Bitmap b = Bitmap.createBitmap(
19714be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato                v.getWidth() + padding, v.getHeight() + padding, Bitmap.Config.ARGB_8888);
19724be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato
19734be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato        canvas.setBitmap(b);
1974ac8c87687b8e063c981f28cb31bab2cc110f26ccAdam Cohen        drawDragView(v, canvas, padding, false);
19755bb50bdb13f5fc22f5febd9480e78222b26c6fe7Adam Cohen        mOutlineHelper.applyMediumExpensiveOutlineWithBlur(b, canvas, outlineColor, outlineColor);
19764be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato        return b;
19774be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato    }
19784be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato
19794be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato    /**
1980d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka     * Returns a new bitmap to be used as the object outline, e.g. to visualize the drop location.
1981d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka     * Responsibility for the bitmap is transferred to the caller.
1982d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka     */
1983f12c75cb48f87955600c56ccbe0aac84b0c11b28Michael Jurka    private Bitmap createDragOutline(Bitmap orig, Canvas canvas, int padding, int w, int h) {
1984d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka        final int outlineColor = getResources().getColor(R.color.drag_outline_color);
1985f12c75cb48f87955600c56ccbe0aac84b0c11b28Michael Jurka        final Bitmap b = Bitmap.createBitmap(w, h, Bitmap.Config.ARGB_8888);
1986d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka        canvas.setBitmap(b);
1987f12c75cb48f87955600c56ccbe0aac84b0c11b28Michael Jurka
1988f12c75cb48f87955600c56ccbe0aac84b0c11b28Michael Jurka        Rect src = new Rect(0, 0, orig.getWidth(), orig.getHeight());
1989f12c75cb48f87955600c56ccbe0aac84b0c11b28Michael Jurka        float scaleFactor = Math.min((w - padding) / (float) orig.getWidth(),
1990f12c75cb48f87955600c56ccbe0aac84b0c11b28Michael Jurka                (h - padding) / (float) orig.getHeight());
1991f12c75cb48f87955600c56ccbe0aac84b0c11b28Michael Jurka        int scaledWidth = (int) (scaleFactor * orig.getWidth());
1992f12c75cb48f87955600c56ccbe0aac84b0c11b28Michael Jurka        int scaledHeight = (int) (scaleFactor * orig.getHeight());
1993f12c75cb48f87955600c56ccbe0aac84b0c11b28Michael Jurka        Rect dst = new Rect(0, 0, scaledWidth, scaledHeight);
1994f12c75cb48f87955600c56ccbe0aac84b0c11b28Michael Jurka
1995f12c75cb48f87955600c56ccbe0aac84b0c11b28Michael Jurka        // center the image
1996f12c75cb48f87955600c56ccbe0aac84b0c11b28Michael Jurka        dst.offset((w - scaledWidth) / 2, (h - scaledHeight) / 2);
1997f12c75cb48f87955600c56ccbe0aac84b0c11b28Michael Jurka
1998f12c75cb48f87955600c56ccbe0aac84b0c11b28Michael Jurka        Paint p = new Paint();
1999f12c75cb48f87955600c56ccbe0aac84b0c11b28Michael Jurka        p.setFilterBitmap(true);
2000f12c75cb48f87955600c56ccbe0aac84b0c11b28Michael Jurka        canvas.drawBitmap(orig, src, dst, p);
2001d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka        mOutlineHelper.applyMediumExpensiveOutlineWithBlur(b, canvas, outlineColor, outlineColor);
2002d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka
2003d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka        return b;
2004d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka    }
2005d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka
2006d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka    /**
2007a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung     * Creates a drag outline to represent a drop (that we don't have the actual information for
2008a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung     * yet).  May be changed in the future to alter the drop outline slightly depending on the
2009a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung     * clip description mime data.
2010a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung     */
2011a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung    private Bitmap createExternalDragOutline(Canvas canvas, int padding) {
2012a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung        Resources r = getResources();
2013a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung        final int outlineColor = r.getColor(R.color.drag_outline_color);
2014a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung        final int iconWidth = r.getDimensionPixelSize(R.dimen.workspace_cell_width);
2015a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung        final int iconHeight = r.getDimensionPixelSize(R.dimen.workspace_cell_height);
2016a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung        final int rectRadius = r.getDimensionPixelSize(R.dimen.external_drop_icon_rect_radius);
2017a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung        final int inset = (int) (Math.min(iconWidth, iconHeight) * 0.2f);
2018a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung        final Bitmap b = Bitmap.createBitmap(
2019a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung                iconWidth + padding, iconHeight + padding, Bitmap.Config.ARGB_8888);
2020a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung
2021a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung        canvas.setBitmap(b);
2022a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung        canvas.drawRoundRect(new RectF(inset, inset, iconWidth - inset, iconHeight - inset),
2023a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung                rectRadius, rectRadius, mExternalDragOutlinePaint);
20245bb50bdb13f5fc22f5febd9480e78222b26c6fe7Adam Cohen        mOutlineHelper.applyMediumExpensiveOutlineWithBlur(b, canvas, outlineColor, outlineColor);
2025a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung        return b;
2026a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung    }
2027a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung
202831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    void startDrag(CellLayout.CellInfo cellInfo) {
202931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        View child = cellInfo.cell;
2030aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung
203131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        // Make sure the drag was started by a long press as opposed to a long click.
20327984c9496bcaeca23ee7fdecc4d4f1bb2467e0f2Bjorn Bringert        if (!child.isInTouchMode()) {
203331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            return;
203431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
2035aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung
203631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        mDragInfo = cellInfo;
2037fc53cd22c9a78708c78c85946443f23ec8c59502Adam Cohen        child.setVisibility(GONE);
20384be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato
20394be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato        child.clearFocus();
20404be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato        child.setPressed(false);
20414be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato
20424be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato        final Canvas canvas = new Canvas();
20434be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato
20448e58e916061cbe2623697efac0924f2aa3753a92Patrick Dubroy        // We need to add extra padding to the bitmap to make room for the glow effect
204538b4f7c5eab773ad36048b5ab8713750dcaaf748Michael Jurka        final int bitmapPadding = HolographicOutlineHelper.MAX_OUTER_BLUR_RADIUS;
20468e58e916061cbe2623697efac0924f2aa3753a92Patrick Dubroy
20474be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato        // The outline is used to visualize where the item will land if dropped
20488e58e916061cbe2623697efac0924f2aa3753a92Patrick Dubroy        mDragOutline = createDragOutline(child, canvas, bitmapPadding);
2049ac8c87687b8e063c981f28cb31bab2cc110f26ccAdam Cohen        beginDragShared(child, this);
2050ac8c87687b8e063c981f28cb31bab2cc110f26ccAdam Cohen    }
2051ac8c87687b8e063c981f28cb31bab2cc110f26ccAdam Cohen
2052ac8c87687b8e063c981f28cb31bab2cc110f26ccAdam Cohen    public void beginDragShared(View child, DragSource source) {
2053ac8c87687b8e063c981f28cb31bab2cc110f26ccAdam Cohen        // We need to add extra padding to the bitmap to make room for the glow effect
2054ac8c87687b8e063c981f28cb31bab2cc110f26ccAdam Cohen        final int bitmapPadding = HolographicOutlineHelper.MAX_OUTER_BLUR_RADIUS;
20554be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato
20564be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato        // The drag bitmap follows the touch point around on the screen
2057ac8c87687b8e063c981f28cb31bab2cc110f26ccAdam Cohen        final Bitmap b = createDragBitmap(child, new Canvas(), bitmapPadding);
20584be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato
20594be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato        final int bmpWidth = b.getWidth();
2060e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen
20618dfcba4af7a7ece09e8c7d96053e54f3a383e905Adam Cohen        mLauncher.getDragLayer().getLocationInDragLayer(child, mTempXY);
20628dfcba4af7a7ece09e8c7d96053e54f3a383e905Adam Cohen        final int dragLayerX = (int) mTempXY[0] + (child.getWidth() - bmpWidth) / 2;
2063fc53cd22c9a78708c78c85946443f23ec8c59502Adam Cohen        int dragLayerY = mTempXY[1] - bitmapPadding / 2;
2064e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen
2065e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen        Rect dragRect = null;
20660e4857c302da6adbd45231d7a8bae0289fa33250Adam Cohen        if (child instanceof BubbleTextView) {
2067e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen            int iconSize = getResources().getDimensionPixelSize(R.dimen.app_icon_size);
2068e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen            int top = child.getPaddingTop();
2069e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen            int left = (bmpWidth - iconSize) / 2;
2070e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen            int right = left + iconSize;
2071e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen            int bottom = top + iconSize;
2072fc53cd22c9a78708c78c85946443f23ec8c59502Adam Cohen            dragLayerY += top;
2073e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen            dragRect = new Rect(left, top, right, bottom);
20740e4857c302da6adbd45231d7a8bae0289fa33250Adam Cohen        } else if (child instanceof FolderIcon) {
20750e4857c302da6adbd45231d7a8bae0289fa33250Adam Cohen            int previewSize = getResources().getDimensionPixelSize(R.dimen.folder_preview_size);
20760e4857c302da6adbd45231d7a8bae0289fa33250Adam Cohen            dragRect = new Rect(0, 0, child.getWidth(), previewSize);
2077e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen        }
2078e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen
2079ac8c87687b8e063c981f28cb31bab2cc110f26ccAdam Cohen        mDragController.startDrag(b, dragLayerX, dragLayerY, source, child.getTag(),
2080e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen                DragController.DRAG_ACTION_MOVE, dragRect);
20814be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato        b.recycle();
208231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
208331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
20843d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung    void addApplicationShortcut(ShortcutInfo info, CellLayout target, long container, int screen,
20853d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung            int cellX, int cellY, boolean insertAtFirst, int intersectX, int intersectY) {
20863d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung        View view = mLauncher.createShortcut(R.layout.application, target, (ShortcutInfo) info);
208731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
20880280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka        final int[] cellXY = new int[2];
20893d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung        target.findCellForSpanThatIntersects(cellXY, 1, 1, intersectX, intersectY);
20903d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung        addInScreen(view, container, screen, cellXY[0], cellXY[1], 1, 1, insertAtFirst);
20913d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung        LauncherModel.addOrMoveItemInDatabase(mLauncher, info, container, screen, cellXY[0],
20923d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung                cellXY[1]);
209331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
209431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
20954b285c5a60028f7c9ce39cfb318a730d0ae95c27Adam Cohen    public boolean transitionStateShouldAllowDrop() {
20964b285c5a60028f7c9ce39cfb318a730d0ae95c27Adam Cohen        return (!isSwitchingState() || mTransitionProgress > 0.5f);
20974b285c5a60028f7c9ce39cfb318a730d0ae95c27Adam Cohen    }
20984b285c5a60028f7c9ce39cfb318a730d0ae95c27Adam Cohen
2099cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy    /**
2100cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy     * {@inheritDoc}
2101cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy     */
2102cb3382b1bfe1a534b1b44f5c4def9b2db605ac90Adam Cohen    public boolean acceptDrop(DragObject d) {
2103cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy        // If it's an external drop (e.g. from All Apps), check if it should be accepted
2104cb3382b1bfe1a534b1b44f5c4def9b2db605ac90Adam Cohen        if (d.dragSource != this) {
2105cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy            // Don't accept the drop if we're not over a screen at time of drop
2106a65beeea13c18c443f15f8d51c4c6e153a6c4ef9Adam Cohen            if (mDragTargetLayout == null) {
2107cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy                return false;
2108cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy            }
21094b285c5a60028f7c9ce39cfb318a730d0ae95c27Adam Cohen            if (!transitionStateShouldAllowDrop()) return false;
2110cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy
2111a65beeea13c18c443f15f8d51c4c6e153a6c4ef9Adam Cohen            mDragViewVisualCenter = getDragViewVisualCenter(d.x, d.y, d.xOffset, d.yOffset,
2112a65beeea13c18c443f15f8d51c4c6e153a6c4ef9Adam Cohen                    d.dragView, mDragViewVisualCenter);
2113a65beeea13c18c443f15f8d51c4c6e153a6c4ef9Adam Cohen
2114557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung            int spanX = 1;
2115557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung            int spanY = 1;
2116557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung            View ignoreView = null;
2117557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung            if (mDragInfo != null) {
2118557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung                final CellLayout.CellInfo dragCellInfo = mDragInfo;
2119557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung                spanX = dragCellInfo.spanX;
2120557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung                spanY = dragCellInfo.spanY;
2121557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung                ignoreView = dragCellInfo.cell;
2122557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung            } else {
2123557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung                final ItemInfo dragInfo = (ItemInfo) d.dragInfo;
2124557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung                spanX = dragInfo.spanX;
2125557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung                spanY = dragInfo.spanY;
2126557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung            }
2127cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy
2128a65beeea13c18c443f15f8d51c4c6e153a6c4ef9Adam Cohen            mTargetCell = findNearestArea((int) mDragViewVisualCenter[0],
2129a65beeea13c18c443f15f8d51c4c6e153a6c4ef9Adam Cohen                    (int) mDragViewVisualCenter[1], spanX, spanY, mDragTargetLayout, mTargetCell);
2130a65beeea13c18c443f15f8d51c4c6e153a6c4ef9Adam Cohen            if (willCreateUserFolder((ItemInfo) d.dragInfo, mDragTargetLayout, mTargetCell, true)) {
2131a65beeea13c18c443f15f8d51c4c6e153a6c4ef9Adam Cohen                return true;
2132a65beeea13c18c443f15f8d51c4c6e153a6c4ef9Adam Cohen            }
2133a65beeea13c18c443f15f8d51c4c6e153a6c4ef9Adam Cohen            if (willAddToExistingUserFolder((ItemInfo) d.dragInfo, mDragTargetLayout,
2134a65beeea13c18c443f15f8d51c4c6e153a6c4ef9Adam Cohen                    mTargetCell)) {
2135a65beeea13c18c443f15f8d51c4c6e153a6c4ef9Adam Cohen                return true;
2136a65beeea13c18c443f15f8d51c4c6e153a6c4ef9Adam Cohen            }
2137a65beeea13c18c443f15f8d51c4c6e153a6c4ef9Adam Cohen
2138cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy
2139cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy            // Don't accept the drop if there's no room for the item
2140cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy            if (!mDragTargetLayout.findCellForSpanIgnoring(null, spanX, spanY, ignoreView)) {
2141cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy                mLauncher.showOutOfSpaceMessage();
2142cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy                return false;
2143cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy            }
2144cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy        }
2145cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy        return true;
2146cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy    }
2147cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy
2148a65beeea13c18c443f15f8d51c4c6e153a6c4ef9Adam Cohen    boolean willCreateUserFolder(ItemInfo info, CellLayout target, int[] targetCell,
2149a65beeea13c18c443f15f8d51c4c6e153a6c4ef9Adam Cohen            boolean considerTimeout) {
2150a65beeea13c18c443f15f8d51c4c6e153a6c4ef9Adam Cohen        View dropOverView = target.getChildAt(targetCell[0], targetCell[1]);
2151a65beeea13c18c443f15f8d51c4c6e153a6c4ef9Adam Cohen
21523d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung        boolean hasntMoved = false;
21533d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung        if (mDragInfo != null) {
21543d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung            CellLayout cellParent = getParentCellLayoutForView(mDragInfo.cell);
21553d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung            hasntMoved = (mDragInfo.cellX == targetCell[0] &&
21563d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung                    mDragInfo.cellY == targetCell[1]) && (cellParent == target);
21573d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung        }
2158e0310965022e7a1adb7ad489505d404186608689Adam Cohen
2159a65beeea13c18c443f15f8d51c4c6e153a6c4ef9Adam Cohen        if (dropOverView == null || hasntMoved || (considerTimeout && !mCreateUserFolderOnDrop)) {
2160a65beeea13c18c443f15f8d51c4c6e153a6c4ef9Adam Cohen            return false;
2161a65beeea13c18c443f15f8d51c4c6e153a6c4ef9Adam Cohen        }
2162e0310965022e7a1adb7ad489505d404186608689Adam Cohen
2163a65beeea13c18c443f15f8d51c4c6e153a6c4ef9Adam Cohen        boolean aboveShortcut = (dropOverView.getTag() instanceof ShortcutInfo);
2164e0310965022e7a1adb7ad489505d404186608689Adam Cohen        boolean willBecomeShortcut =
2165c0dcf597084d00e4c23a7fea5fd0738f6c095a6bAdam Cohen                (info.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPLICATION ||
2166c0dcf597084d00e4c23a7fea5fd0738f6c095a6bAdam Cohen                info.itemType == LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT);
2167e0310965022e7a1adb7ad489505d404186608689Adam Cohen
2168e0310965022e7a1adb7ad489505d404186608689Adam Cohen        return (aboveShortcut && willBecomeShortcut);
2169e0310965022e7a1adb7ad489505d404186608689Adam Cohen    }
2170e0310965022e7a1adb7ad489505d404186608689Adam Cohen
2171a65beeea13c18c443f15f8d51c4c6e153a6c4ef9Adam Cohen    boolean willAddToExistingUserFolder(Object dragInfo, CellLayout target, int[] targetCell) {
2172a65beeea13c18c443f15f8d51c4c6e153a6c4ef9Adam Cohen        View dropOverView = target.getChildAt(targetCell[0], targetCell[1]);
2173a65beeea13c18c443f15f8d51c4c6e153a6c4ef9Adam Cohen        if (dropOverView instanceof FolderIcon) {
2174a65beeea13c18c443f15f8d51c4c6e153a6c4ef9Adam Cohen            FolderIcon fi = (FolderIcon) dropOverView;
2175a65beeea13c18c443f15f8d51c4c6e153a6c4ef9Adam Cohen            if (fi.acceptDrop(dragInfo)) {
2176a65beeea13c18c443f15f8d51c4c6e153a6c4ef9Adam Cohen                return true;
2177a65beeea13c18c443f15f8d51c4c6e153a6c4ef9Adam Cohen            }
2178a65beeea13c18c443f15f8d51c4c6e153a6c4ef9Adam Cohen        }
2179a65beeea13c18c443f15f8d51c4c6e153a6c4ef9Adam Cohen        return false;
2180a65beeea13c18c443f15f8d51c4c6e153a6c4ef9Adam Cohen    }
2181a65beeea13c18c443f15f8d51c4c6e153a6c4ef9Adam Cohen
21823d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung    boolean createUserFolderIfNecessary(View newView, long container, CellLayout target,
2183557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung            int[] targetCell, boolean external, DragView dragView, Runnable postAnimationRunnable) {
2184c0dcf597084d00e4c23a7fea5fd0738f6c095a6bAdam Cohen        View v = target.getChildAt(targetCell[0], targetCell[1]);
2185ec9a0a4ca5458e65ba2498e4f7eab0ae6e91964aWinson Chung        boolean hasntMoved = false;
2186ec9a0a4ca5458e65ba2498e4f7eab0ae6e91964aWinson Chung        if (mDragInfo != null) {
2187ec9a0a4ca5458e65ba2498e4f7eab0ae6e91964aWinson Chung            CellLayout cellParent = getParentCellLayoutForView(mDragInfo.cell);
2188ec9a0a4ca5458e65ba2498e4f7eab0ae6e91964aWinson Chung            hasntMoved = (mDragInfo.cellX == targetCell[0] &&
2189ec9a0a4ca5458e65ba2498e4f7eab0ae6e91964aWinson Chung                    mDragInfo.cellY == targetCell[1]) && (cellParent == target);
2190ec9a0a4ca5458e65ba2498e4f7eab0ae6e91964aWinson Chung        }
219110b1737910ea7890ca95bbbe5363fd5aa513b856Adam Cohen
219219072da7441e07d5e90026d9e9e1b38f11245e44Adam Cohen        if (v == null || hasntMoved || !mCreateUserFolderOnDrop) return false;
219319072da7441e07d5e90026d9e9e1b38f11245e44Adam Cohen        mCreateUserFolderOnDrop = false;
2194c0dcf597084d00e4c23a7fea5fd0738f6c095a6bAdam Cohen        final int screen = (targetCell == null) ? mDragInfo.screen : indexOfChild(target);
219510b1737910ea7890ca95bbbe5363fd5aa513b856Adam Cohen
219610b1737910ea7890ca95bbbe5363fd5aa513b856Adam Cohen        boolean aboveShortcut = (v.getTag() instanceof ShortcutInfo);
219710b1737910ea7890ca95bbbe5363fd5aa513b856Adam Cohen        boolean willBecomeShortcut = (newView.getTag() instanceof ShortcutInfo);
219810b1737910ea7890ca95bbbe5363fd5aa513b856Adam Cohen
219910b1737910ea7890ca95bbbe5363fd5aa513b856Adam Cohen        if (aboveShortcut && willBecomeShortcut) {
220010b1737910ea7890ca95bbbe5363fd5aa513b856Adam Cohen            ShortcutInfo sourceInfo = (ShortcutInfo) newView.getTag();
220110b1737910ea7890ca95bbbe5363fd5aa513b856Adam Cohen            ShortcutInfo destInfo = (ShortcutInfo) v.getTag();
220210b1737910ea7890ca95bbbe5363fd5aa513b856Adam Cohen            // if the drag started here, we need to remove it from the workspace
220310b1737910ea7890ca95bbbe5363fd5aa513b856Adam Cohen            if (!external) {
22043d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung                getParentCellLayoutForView(mDragInfo.cell).removeView(mDragInfo.cell);
220510b1737910ea7890ca95bbbe5363fd5aa513b856Adam Cohen            }
220610b1737910ea7890ca95bbbe5363fd5aa513b856Adam Cohen
2207d044526d82e7938cf35b296978d9d5302f98b4afAdam Cohen            Rect folderLocation = new Rect();
2208ac8c87687b8e063c981f28cb31bab2cc110f26ccAdam Cohen            float scale = mLauncher.getDragLayer().getDescendantRectRelativeToSelf(v, folderLocation);
220910b1737910ea7890ca95bbbe5363fd5aa513b856Adam Cohen            target.removeView(v);
2210d044526d82e7938cf35b296978d9d5302f98b4afAdam Cohen
22113d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung            FolderIcon fi =
22123d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung                mLauncher.addFolder(target, container, screen, targetCell[0], targetCell[1]);
2213a9cf38f533d1e86269868f1e6a806ccffd4a78fcAdam Cohen            destInfo.cellX = -1;
2214a9cf38f533d1e86269868f1e6a806ccffd4a78fcAdam Cohen            destInfo.cellY = -1;
2215a9cf38f533d1e86269868f1e6a806ccffd4a78fcAdam Cohen            sourceInfo.cellX = -1;
2216a9cf38f533d1e86269868f1e6a806ccffd4a78fcAdam Cohen            sourceInfo.cellY = -1;
2217d044526d82e7938cf35b296978d9d5302f98b4afAdam Cohen
2218ac8c87687b8e063c981f28cb31bab2cc110f26ccAdam Cohen            fi.performCreateAnimation(destInfo, v, sourceInfo, dragView, folderLocation, scale,
2219557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung                    postAnimationRunnable);
222010b1737910ea7890ca95bbbe5363fd5aa513b856Adam Cohen            return true;
222110b1737910ea7890ca95bbbe5363fd5aa513b856Adam Cohen        }
222210b1737910ea7890ca95bbbe5363fd5aa513b856Adam Cohen        return false;
222310b1737910ea7890ca95bbbe5363fd5aa513b856Adam Cohen    }
222410b1737910ea7890ca95bbbe5363fd5aa513b856Adam Cohen
2225a65beeea13c18c443f15f8d51c4c6e153a6c4ef9Adam Cohen    boolean addToExistingFolderIfNecessary(View newView, CellLayout target, int[] targetCell,
22263e8f811f31a2275e778244427271f77f4116c08bAdam Cohen            DragObject d, boolean external) {
2227a65beeea13c18c443f15f8d51c4c6e153a6c4ef9Adam Cohen        View dropOverView = target.getChildAt(targetCell[0], targetCell[1]);
2228c0dcf597084d00e4c23a7fea5fd0738f6c095a6bAdam Cohen        if (dropOverView instanceof FolderIcon) {
2229c0dcf597084d00e4c23a7fea5fd0738f6c095a6bAdam Cohen            FolderIcon fi = (FolderIcon) dropOverView;
22303e8f811f31a2275e778244427271f77f4116c08bAdam Cohen            if (fi.acceptDrop(d.dragInfo)) {
22313e8f811f31a2275e778244427271f77f4116c08bAdam Cohen                fi.onDrop(d);
2232c0dcf597084d00e4c23a7fea5fd0738f6c095a6bAdam Cohen
2233c0dcf597084d00e4c23a7fea5fd0738f6c095a6bAdam Cohen                // if the drag started here, we need to remove it from the workspace
2234c0dcf597084d00e4c23a7fea5fd0738f6c095a6bAdam Cohen                if (!external) {
22353d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung                    getParentCellLayoutForView(mDragInfo.cell).removeView(mDragInfo.cell);
2236c0dcf597084d00e4c23a7fea5fd0738f6c095a6bAdam Cohen                }
2237c0dcf597084d00e4c23a7fea5fd0738f6c095a6bAdam Cohen                return true;
2238c0dcf597084d00e4c23a7fea5fd0738f6c095a6bAdam Cohen            }
2239c0dcf597084d00e4c23a7fea5fd0738f6c095a6bAdam Cohen        }
2240c0dcf597084d00e4c23a7fea5fd0738f6c095a6bAdam Cohen        return false;
2241c0dcf597084d00e4c23a7fea5fd0738f6c095a6bAdam Cohen    }
2242c0dcf597084d00e4c23a7fea5fd0738f6c095a6bAdam Cohen
2243cb3382b1bfe1a534b1b44f5c4def9b2db605ac90Adam Cohen    public void onDrop(DragObject d) {
2244cb3382b1bfe1a534b1b44f5c4def9b2db605ac90Adam Cohen        mDragViewVisualCenter = getDragViewVisualCenter(d.x, d.y, d.xOffset, d.yOffset, d.dragView,
2245e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen                mDragViewVisualCenter);
2246e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen
2247e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen        // We want the point to be mapped to the dragTarget.
2248ba781611b3e2fb1c42daa7167c1079b90b100efaAdam Cohen        if (mDragTargetLayout != null) {
22493d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung            if (mLauncher.isHotseatLayout(mDragTargetLayout)) {
22503d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung                mapPointFromSelfToSibling(mLauncher.getHotseat(), mDragViewVisualCenter);
22513d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung            } else {
22523d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung                mapPointFromSelfToChild(mDragTargetLayout, mDragViewVisualCenter, null);
22533d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung            }
2254ba781611b3e2fb1c42daa7167c1079b90b100efaAdam Cohen        }
2255c6ee42e25f203e408826e7eab4ad8faf67ed2ff9Michael Jurka
22563e5ad58a6885273a60f8eb77aa9aee965eecdb2cMichael Jurka        // When you are in customization mode and drag to a particular screen, make that the
22573e5ad58a6885273a60f8eb77aa9aee965eecdb2cMichael Jurka        // new current/default screen, so any subsequent taps add items to that screen
22583e5ad58a6885273a60f8eb77aa9aee965eecdb2cMichael Jurka        if (!mLauncher.isAllAppsVisible()) {
22593e5ad58a6885273a60f8eb77aa9aee965eecdb2cMichael Jurka            int dragTargetIndex = indexOfChild(mDragTargetLayout);
2260d74c984fcc61f86160476a2543faff715e3ee2fdMichael Jurka            if (mCurrentPage != dragTargetIndex && (isSmall() || mIsSwitchingState)) {
22613e5ad58a6885273a60f8eb77aa9aee965eecdb2cMichael Jurka                scrollToNewPageWithoutMovingPages(dragTargetIndex);
22623e5ad58a6885273a60f8eb77aa9aee965eecdb2cMichael Jurka            }
2263b09cac5a738b679038cbeaec80041637100b65d9Michael Jurka        }
226476078c4ef35b6e95fb6d8129a32cf52a36625e28Adam Cohen        CellLayout dropTargetLayout = mDragTargetLayout;
2265b09cac5a738b679038cbeaec80041637100b65d9Michael Jurka
2266cb3382b1bfe1a534b1b44f5c4def9b2db605ac90Adam Cohen        if (d.dragSource != this) {
2267e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen            final int[] touchXY = new int[] { (int) mDragViewVisualCenter[0],
2268e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen                    (int) mDragViewVisualCenter[1] };
22693e8f811f31a2275e778244427271f77f4116c08bAdam Cohen            onDropExternal(touchXY, d.dragInfo, dropTargetLayout, false, d);
2270ce34a9768b01115def95f000a6a8f35870f10d3aPatrick Dubroy        } else if (mDragInfo != null) {
2271ce34a9768b01115def95f000a6a8f35870f10d3aPatrick Dubroy            final View cell = mDragInfo.cell;
227254fa3b95557c283976e8c1aa8a157b460b0b4513Patrick Dubroy
22733d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung            boolean continueDrop = true;
22743d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung            if (mLauncher.isHotseatLayout(mDragTargetLayout) && d.dragInfo instanceof ItemInfo) {
22753d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung                ItemInfo info = (ItemInfo) d.dragInfo;
22763d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung                if (info.spanX > 1 || info.spanY > 1) {
22773d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung                    continueDrop = false;
22783d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung                    Toast.makeText(getContext(), R.string.invalid_hotseat_item,
22793d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung                            Toast.LENGTH_SHORT).show();
22803d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung                }
22813d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung            }
22823d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung
22833d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung            if (continueDrop && dropTargetLayout != null) {
2284cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy                // Move internally
228540e882bf19a837ee62ec328c5748b75be7960d39Winson Chung                boolean hasMovedLayouts = (getParentCellLayoutForView(cell) != dropTargetLayout);
228640e882bf19a837ee62ec328c5748b75be7960d39Winson Chung                boolean hasMovedIntoHotseat = mLauncher.isHotseatLayout(dropTargetLayout);
228740e882bf19a837ee62ec328c5748b75be7960d39Winson Chung                long container = hasMovedIntoHotseat ?
22883d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung                        LauncherSettings.Favorites.CONTAINER_HOTSEAT :
22893d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung                        LauncherSettings.Favorites.CONTAINER_DESKTOP;
22903d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung                int screen = (mTargetCell[0] < 0) ?
229154fa3b95557c283976e8c1aa8a157b460b0b4513Patrick Dubroy                        mDragInfo.screen : indexOfChild(dropTargetLayout);
2292c0dcf597084d00e4c23a7fea5fd0738f6c095a6bAdam Cohen                int spanX = mDragInfo != null ? mDragInfo.spanX : 1;
2293c0dcf597084d00e4c23a7fea5fd0738f6c095a6bAdam Cohen                int spanY = mDragInfo != null ? mDragInfo.spanY : 1;
2294c0dcf597084d00e4c23a7fea5fd0738f6c095a6bAdam Cohen                // First we find the cell nearest to point at which the item is
2295c0dcf597084d00e4c23a7fea5fd0738f6c095a6bAdam Cohen                // dropped, without any consideration to whether there is an item there.
2296c0dcf597084d00e4c23a7fea5fd0738f6c095a6bAdam Cohen                mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], (int)
2297c0dcf597084d00e4c23a7fea5fd0738f6c095a6bAdam Cohen                        mDragViewVisualCenter[1], spanX, spanY, dropTargetLayout, mTargetCell);
2298c0dcf597084d00e4c23a7fea5fd0738f6c095a6bAdam Cohen                // If the item being dropped is a shortcut and the nearest drop
229976078c4ef35b6e95fb6d8129a32cf52a36625e28Adam Cohen                // cell also contains a shortcut, then create a folder with the two shortcuts.
230040e882bf19a837ee62ec328c5748b75be7960d39Winson Chung                boolean dropInscrollArea = hasMovedLayouts && !hasMovedIntoHotseat;
23013d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung                if (!dropInscrollArea && createUserFolderIfNecessary(cell, container,
23023d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung                        dropTargetLayout, mTargetCell, false, d.dragView, null)) {
2303c0dcf597084d00e4c23a7fea5fd0738f6c095a6bAdam Cohen                    return;
2304c0dcf597084d00e4c23a7fea5fd0738f6c095a6bAdam Cohen                }
2305c0dcf597084d00e4c23a7fea5fd0738f6c095a6bAdam Cohen
23063e8f811f31a2275e778244427271f77f4116c08bAdam Cohen                if (addToExistingFolderIfNecessary(cell, dropTargetLayout, mTargetCell, d, false)) {
2307df0353815c629fc678824b07a234b89a1ff94208Adam Cohen                    return;
2308df0353815c629fc678824b07a234b89a1ff94208Adam Cohen                }
2309df0353815c629fc678824b07a234b89a1ff94208Adam Cohen
2310df0353815c629fc678824b07a234b89a1ff94208Adam Cohen                // Aside from the special case where we're dropping a shortcut onto a shortcut,
2311df0353815c629fc678824b07a234b89a1ff94208Adam Cohen                // we need to find the nearest cell location that is vacant
2312e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen                mTargetCell = findNearestVacantArea((int) mDragViewVisualCenter[0],
2313e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen                        (int) mDragViewVisualCenter[1], mDragInfo.spanX, mDragInfo.spanY, cell,
2314e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen                        dropTargetLayout, mTargetCell);
2315df0353815c629fc678824b07a234b89a1ff94208Adam Cohen
2316d74c984fcc61f86160476a2543faff715e3ee2fdMichael Jurka                if (dropInscrollArea && mState != State.SPRING_LOADED) {
231754fa3b95557c283976e8c1aa8a157b460b0b4513Patrick Dubroy                    snapToPage(screen);
231854fa3b95557c283976e8c1aa8a157b460b0b4513Patrick Dubroy                }
231954fa3b95557c283976e8c1aa8a157b460b0b4513Patrick Dubroy
23203d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung
2321c0dcf597084d00e4c23a7fea5fd0738f6c095a6bAdam Cohen                if (mTargetCell[0] >= 0 && mTargetCell[1] >= 0) {
232240e882bf19a837ee62ec328c5748b75be7960d39Winson Chung                    if (hasMovedLayouts) {
23239438336724b4f8b54c7cdc49c5f01dd9568926ebPatrick Dubroy                        // Reparent the view
23243d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung                        getParentCellLayoutForView(cell).removeView(cell);
23253d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung                        addInScreen(cell, container, screen, mTargetCell[0], mTargetCell[1],
23263d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung                                mDragInfo.spanX, mDragInfo.spanY);
23279438336724b4f8b54c7cdc49c5f01dd9568926ebPatrick Dubroy                    }
2328cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy
23299438336724b4f8b54c7cdc49c5f01dd9568926ebPatrick Dubroy                    // update the item's position after drop
23309438336724b4f8b54c7cdc49c5f01dd9568926ebPatrick Dubroy                    final ItemInfo info = (ItemInfo) cell.getTag();
23319438336724b4f8b54c7cdc49c5f01dd9568926ebPatrick Dubroy                    CellLayout.LayoutParams lp = (CellLayout.LayoutParams) cell.getLayoutParams();
233254fa3b95557c283976e8c1aa8a157b460b0b4513Patrick Dubroy                    dropTargetLayout.onMove(cell, mTargetCell[0], mTargetCell[1]);
23339438336724b4f8b54c7cdc49c5f01dd9568926ebPatrick Dubroy                    lp.cellX = mTargetCell[0];
23349438336724b4f8b54c7cdc49c5f01dd9568926ebPatrick Dubroy                    lp.cellY = mTargetCell[1];
23353d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung                    cell.setId(LauncherModel.getCellLayoutChildId(container, mDragInfo.screen,
23369438336724b4f8b54c7cdc49c5f01dd9568926ebPatrick Dubroy                            mTargetCell[0], mTargetCell[1], mDragInfo.spanX, mDragInfo.spanY));
23379438336724b4f8b54c7cdc49c5f01dd9568926ebPatrick Dubroy
23383d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung                    if (container != LauncherSettings.Favorites.CONTAINER_HOTSEAT &&
23393d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung                            cell instanceof LauncherAppWidgetHostView) {
2340d4844c3e731b00547a31f23a00f8bd4a271e2b62Adam Cohen                        final CellLayout cellLayout = dropTargetLayout;
2341d4844c3e731b00547a31f23a00f8bd4a271e2b62Adam Cohen                        // We post this call so that the widget has a chance to be placed
2342d4844c3e731b00547a31f23a00f8bd4a271e2b62Adam Cohen                        // in its final location
2343d4844c3e731b00547a31f23a00f8bd4a271e2b62Adam Cohen
2344d4844c3e731b00547a31f23a00f8bd4a271e2b62Adam Cohen                        final LauncherAppWidgetHostView hostView = (LauncherAppWidgetHostView) cell;
2345d4844c3e731b00547a31f23a00f8bd4a271e2b62Adam Cohen                        AppWidgetProviderInfo pinfo = hostView.getAppWidgetInfo();
234627c09b05d3ed2a4ce9d53140216aba998727a569Adam Cohen                        if (pinfo.resizeMode != AppWidgetProviderInfo.RESIZE_NONE) {
234726976d9b53161f80faf822d482ac771b8621cf31Adam Cohen                            final Runnable resizeRunnable = new Runnable() {
2348d4844c3e731b00547a31f23a00f8bd4a271e2b62Adam Cohen                                public void run() {
2349716b51e030f9c6ed34af2b947760e46a280c65a6Adam Cohen                                    DragLayer dragLayer = mLauncher.getDragLayer();
2350c0dcf597084d00e4c23a7fea5fd0738f6c095a6bAdam Cohen                                    dragLayer.addResizeFrame(info, hostView, cellLayout);
2351d4844c3e731b00547a31f23a00f8bd4a271e2b62Adam Cohen                                }
235226976d9b53161f80faf822d482ac771b8621cf31Adam Cohen                            };
235326976d9b53161f80faf822d482ac771b8621cf31Adam Cohen                            post(new Runnable() {
235426976d9b53161f80faf822d482ac771b8621cf31Adam Cohen                                public void run() {
235526976d9b53161f80faf822d482ac771b8621cf31Adam Cohen                                    if (!isPageMoving()) {
235626976d9b53161f80faf822d482ac771b8621cf31Adam Cohen                                        resizeRunnable.run();
235726976d9b53161f80faf822d482ac771b8621cf31Adam Cohen                                    } else {
235826976d9b53161f80faf822d482ac771b8621cf31Adam Cohen                                        mDelayedResizeRunnable = resizeRunnable;
235926976d9b53161f80faf822d482ac771b8621cf31Adam Cohen                                    }
236026976d9b53161f80faf822d482ac771b8621cf31Adam Cohen                                }
2361d4844c3e731b00547a31f23a00f8bd4a271e2b62Adam Cohen                            });
2362d4844c3e731b00547a31f23a00f8bd4a271e2b62Adam Cohen                        }
2363d4844c3e731b00547a31f23a00f8bd4a271e2b62Adam Cohen                    }
2364d4844c3e731b00547a31f23a00f8bd4a271e2b62Adam Cohen
23653d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung                    LauncherModel.moveItemInDatabase(mLauncher, info, container, screen, lp.cellX,
23663d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung                            lp.cellY);
23679438336724b4f8b54c7cdc49c5f01dd9568926ebPatrick Dubroy                }
236831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            }
2369cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy
23708c920dd3683d752aa4c43e964831ce53f9b72887Michael Jurka            final CellLayout parent = (CellLayout) cell.getParent().getParent();
2371ce34a9768b01115def95f000a6a8f35870f10d3aPatrick Dubroy
2372ce34a9768b01115def95f000a6a8f35870f10d3aPatrick Dubroy            // Prepare it to be animated into its new position
2373ce34a9768b01115def95f000a6a8f35870f10d3aPatrick Dubroy            // This must be called after the view has been re-parented
2374d74c984fcc61f86160476a2543faff715e3ee2fdMichael Jurka            final Runnable disableHardwareLayersRunnable = new Runnable() {
2375d74c984fcc61f86160476a2543faff715e3ee2fdMichael Jurka                @Override
2376d74c984fcc61f86160476a2543faff715e3ee2fdMichael Jurka                public void run() {
2377d74c984fcc61f86160476a2543faff715e3ee2fdMichael Jurka                    mAnimatingViewIntoPlace = false;
2378d74c984fcc61f86160476a2543faff715e3ee2fdMichael Jurka                    updateChildrenLayersEnabled();
2379d74c984fcc61f86160476a2543faff715e3ee2fdMichael Jurka                }
2380d74c984fcc61f86160476a2543faff715e3ee2fdMichael Jurka            };
2381d74c984fcc61f86160476a2543faff715e3ee2fdMichael Jurka            mAnimatingViewIntoPlace = true;
2382fc53cd22c9a78708c78c85946443f23ec8c59502Adam Cohen            if (d.dragView.hasDrawn()) {
2383fc53cd22c9a78708c78c85946443f23ec8c59502Adam Cohen                mLauncher.getDragLayer().animateViewIntoPosition(d.dragView, cell,
2384fc53cd22c9a78708c78c85946443f23ec8c59502Adam Cohen                        disableHardwareLayersRunnable);
2385fc53cd22c9a78708c78c85946443f23ec8c59502Adam Cohen            } else {
2386fc53cd22c9a78708c78c85946443f23ec8c59502Adam Cohen                cell.setVisibility(VISIBLE);
2387fc53cd22c9a78708c78c85946443f23ec8c59502Adam Cohen            }
2388716b51e030f9c6ed34af2b947760e46a280c65a6Adam Cohen            parent.onDropChild(cell);
238931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
239031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
239131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
239276078c4ef35b6e95fb6d8129a32cf52a36625e28Adam Cohen    public void getViewLocationRelativeToSelf(View v, int[] location) {
23938dfcba4af7a7ece09e8c7d96053e54f3a383e905Adam Cohen        getLocationInWindow(location);
2394e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen        int x = location[0];
2395e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen        int y = location[1];
2396e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen
23978dfcba4af7a7ece09e8c7d96053e54f3a383e905Adam Cohen        v.getLocationInWindow(location);
2398e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen        int vX = location[0];
2399e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen        int vY = location[1];
2400e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen
2401e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen        location[0] = vX - x;
2402e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen        location[1] = vY - y;
2403e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen    }
2404e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen
2405cb3382b1bfe1a534b1b44f5c4def9b2db605ac90Adam Cohen    public void onDragEnter(DragObject d) {
2406b26f3d6a8c62e7c1a603b6c7979375d8dd4f20d4Winson Chung        if (mDragTargetLayout != null) {
2407c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung            mDragTargetLayout.setIsDragOverlapping(false);
2408b26f3d6a8c62e7c1a603b6c7979375d8dd4f20d4Winson Chung            mDragTargetLayout.onDragExit();
2409b26f3d6a8c62e7c1a603b6c7979375d8dd4f20d4Winson Chung        }
2410c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung        mDragTargetLayout = getCurrentDropLayout();
2411c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung        mDragTargetLayout.setIsDragOverlapping(true);
2412c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung        mDragTargetLayout.onDragEnter();
2413c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung
2414c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung        // Because we don't have space in the Phone UI (the CellLayouts run to the edge) we
2415c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung        // don't need to show the outlines
2416c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung        if (LauncherApplication.isScreenLarge()) {
2417c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung            showOutlines();
2418c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung        }
2419c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung    }
2420b26f3d6a8c62e7c1a603b6c7979375d8dd4f20d4Winson Chung
2421c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung    private void doDragExit(DragObject d) {
2422c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung        // Clean up folders
2423c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung        cleanupFolderCreation(d);
2424fd3385fe9e0f034b04f99d5d59a58d74fe040da4Winson Chung
2425c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung        // Reset the scroll area and previous drag target
2426c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung        onResetScrollArea();
2427c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung
2428c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung        if (mDragTargetLayout != null) {
2429c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung            mDragTargetLayout.setIsDragOverlapping(false);
2430c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung            mDragTargetLayout.onDragExit();
2431d718d6a7ba424b600052a147e5633a201a04ccb7Michael Jurka        }
2432c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung        mLastDragOverView = null;
2433c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung
2434c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung        if (!mIsPageMoving) {
2435c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung            hideOutlines();
2436c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung        }
2437c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung    }
2438c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung
2439c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung    public void onDragExit(DragObject d) {
2440c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung        doDragExit(d);
244131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
244231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
2443cb3382b1bfe1a534b1b44f5c4def9b2db605ac90Adam Cohen    public DropTarget getDropTargetDelegate(DragObject d) {
2444440c360bc395c43683fa9ca226e59f9e35f9e926Patrick Dubroy        return null;
2445440c360bc395c43683fa9ca226e59f9e35f9e926Patrick Dubroy    }
24466569f2c80e179c2f8ed73dae6b01d971ec20f005Patrick Dubroy
2447a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung    /**
2448580e27748137ff08599aa719d106b31215a28353Winson Chung     * Tests to see if the drop will be accepted by Launcher, and if so, includes additional data
2449580e27748137ff08599aa719d106b31215a28353Winson Chung     * in the returned structure related to the widgets that match the drop (or a null list if it is
2450580e27748137ff08599aa719d106b31215a28353Winson Chung     * a shortcut drop).  If the drop is not accepted then a null structure is returned.
2451580e27748137ff08599aa719d106b31215a28353Winson Chung     */
2452580e27748137ff08599aa719d106b31215a28353Winson Chung    private Pair<Integer, List<WidgetMimeTypeHandlerData>> validateDrag(DragEvent event) {
2453580e27748137ff08599aa719d106b31215a28353Winson Chung        final LauncherModel model = mLauncher.getModel();
2454580e27748137ff08599aa719d106b31215a28353Winson Chung        final ClipDescription desc = event.getClipDescription();
2455580e27748137ff08599aa719d106b31215a28353Winson Chung        final int mimeTypeCount = desc.getMimeTypeCount();
2456580e27748137ff08599aa719d106b31215a28353Winson Chung        for (int i = 0; i < mimeTypeCount; ++i) {
2457580e27748137ff08599aa719d106b31215a28353Winson Chung            final String mimeType = desc.getMimeType(i);
2458580e27748137ff08599aa719d106b31215a28353Winson Chung            if (mimeType.equals(InstallShortcutReceiver.SHORTCUT_MIMETYPE)) {
2459580e27748137ff08599aa719d106b31215a28353Winson Chung                return new Pair<Integer, List<WidgetMimeTypeHandlerData>>(i, null);
2460580e27748137ff08599aa719d106b31215a28353Winson Chung            } else {
2461580e27748137ff08599aa719d106b31215a28353Winson Chung                final List<WidgetMimeTypeHandlerData> widgets =
2462580e27748137ff08599aa719d106b31215a28353Winson Chung                    model.resolveWidgetsForMimeType(mContext, mimeType);
2463580e27748137ff08599aa719d106b31215a28353Winson Chung                if (widgets.size() > 0) {
2464580e27748137ff08599aa719d106b31215a28353Winson Chung                    return new Pair<Integer, List<WidgetMimeTypeHandlerData>>(i, widgets);
2465580e27748137ff08599aa719d106b31215a28353Winson Chung                }
2466580e27748137ff08599aa719d106b31215a28353Winson Chung            }
2467580e27748137ff08599aa719d106b31215a28353Winson Chung        }
2468580e27748137ff08599aa719d106b31215a28353Winson Chung        return null;
2469580e27748137ff08599aa719d106b31215a28353Winson Chung    }
2470580e27748137ff08599aa719d106b31215a28353Winson Chung
2471580e27748137ff08599aa719d106b31215a28353Winson Chung    /**
2472a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung     * Global drag and drop handler
2473a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung     */
2474a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung    @Override
2475a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung    public boolean onDragEvent(DragEvent event) {
247668846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung        final ClipDescription desc = event.getClipDescription();
2477a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung        final CellLayout layout = (CellLayout) getChildAt(mCurrentPage);
2478a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung        final int[] pos = new int[2];
2479a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung        layout.getLocationOnScreen(pos);
2480a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung        // We need to offset the drag coordinates to layout coordinate space
2481a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung        final int x = (int) event.getX() - pos[0];
2482a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung        final int y = (int) event.getY() - pos[1];
2483a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung
2484a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung        switch (event.getAction()) {
2485580e27748137ff08599aa719d106b31215a28353Winson Chung        case DragEvent.ACTION_DRAG_STARTED: {
2486580e27748137ff08599aa719d106b31215a28353Winson Chung            // Validate this drag
2487580e27748137ff08599aa719d106b31215a28353Winson Chung            Pair<Integer, List<WidgetMimeTypeHandlerData>> test = validateDrag(event);
2488580e27748137ff08599aa719d106b31215a28353Winson Chung            if (test != null) {
2489580e27748137ff08599aa719d106b31215a28353Winson Chung                boolean isShortcut = (test.second == null);
2490580e27748137ff08599aa719d106b31215a28353Winson Chung                if (isShortcut) {
2491580e27748137ff08599aa719d106b31215a28353Winson Chung                    // Check if we have enough space on this screen to add a new shortcut
2492580e27748137ff08599aa719d106b31215a28353Winson Chung                    if (!layout.findCellForSpan(pos, 1, 1)) {
2493557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung                        mLauncher.showOutOfSpaceMessage();
2494580e27748137ff08599aa719d106b31215a28353Winson Chung                        return false;
2495580e27748137ff08599aa719d106b31215a28353Winson Chung                    }
2496580e27748137ff08599aa719d106b31215a28353Winson Chung                }
2497580e27748137ff08599aa719d106b31215a28353Winson Chung            } else {
2498580e27748137ff08599aa719d106b31215a28353Winson Chung                // Show error message if we couldn't accept any of the items
2499580e27748137ff08599aa719d106b31215a28353Winson Chung                Toast.makeText(mContext, mContext.getString(R.string.external_drop_widget_error),
2500a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung                        Toast.LENGTH_SHORT).show();
2501a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung                return false;
2502a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung            }
2503a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung
250468846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung            // Create the drag outline
250568846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung            // We need to add extra padding to the bitmap to make room for the glow effect
250668846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung            final Canvas canvas = new Canvas();
250738b4f7c5eab773ad36048b5ab8713750dcaaf748Michael Jurka            final int bitmapPadding = HolographicOutlineHelper.MAX_OUTER_BLUR_RADIUS;
250868846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung            mDragOutline = createExternalDragOutline(canvas, bitmapPadding);
2509a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung
251068846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung            // Show the current page outlines to indicate that we can accept this drop
251168846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung            showOutlines();
251233945b21544bc98381df17726a3537c292d8c985Michael Jurka            layout.setIsDragOccuring(true);
251368846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung            layout.onDragEnter();
251468846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung            layout.visualizeDropLocation(null, mDragOutline, x, y, 1, 1);
2515a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung
251668846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung            return true;
2517580e27748137ff08599aa719d106b31215a28353Winson Chung        }
2518a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung        case DragEvent.ACTION_DRAG_LOCATION:
2519a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung            // Visualize the drop location
2520a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung            layout.visualizeDropLocation(null, mDragOutline, x, y, 1, 1);
2521a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung            return true;
2522580e27748137ff08599aa719d106b31215a28353Winson Chung        case DragEvent.ACTION_DROP: {
2523a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung            // Try and add any shortcuts
2524a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung            final LauncherModel model = mLauncher.getModel();
2525a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung            final ClipData data = event.getClipData();
252655cef262f97749300c2f6e764da0b00cbcb78879Winson Chung
252768846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung            // We assume that the mime types are ordered in descending importance of
252868846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung            // representation. So we enumerate the list of mime types and alert the
252968846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung            // user if any widgets can handle the drop.  Only the most preferred
253068846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung            // representation will be handled.
253168846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung            pos[0] = x;
253268846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung            pos[1] = y;
2533580e27748137ff08599aa719d106b31215a28353Winson Chung            Pair<Integer, List<WidgetMimeTypeHandlerData>> test = validateDrag(event);
2534580e27748137ff08599aa719d106b31215a28353Winson Chung            if (test != null) {
2535580e27748137ff08599aa719d106b31215a28353Winson Chung                final int index = test.first;
2536580e27748137ff08599aa719d106b31215a28353Winson Chung                final List<WidgetMimeTypeHandlerData> widgets = test.second;
2537580e27748137ff08599aa719d106b31215a28353Winson Chung                final boolean isShortcut = (widgets == null);
2538580e27748137ff08599aa719d106b31215a28353Winson Chung                final String mimeType = desc.getMimeType(index);
2539580e27748137ff08599aa719d106b31215a28353Winson Chung                if (isShortcut) {
25400d5aad7edbed3ed5c13904cc13ec8842ffe8837bDianne Hackborn                    final Intent intent = data.getItemAt(index).getIntent();
254168846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung                    Object info = model.infoFromShortcutIntent(mContext, intent, data.getIcon());
2542c4e772e4b3f21bde342e475ebc49b5b76b8f74e8Michael Jurka                    onDropExternal(new int[] { x, y }, info, layout, false);
254368846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung                } else {
2544580e27748137ff08599aa719d106b31215a28353Winson Chung                    if (widgets.size() == 1) {
254568846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung                        // If there is only one item, then go ahead and add and configure
254668846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung                        // that widget
254768846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung                        final AppWidgetProviderInfo widgetInfo = widgets.get(0).widgetInfo;
254868846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung                        final PendingAddWidgetInfo createInfo =
254968846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung                                new PendingAddWidgetInfo(widgetInfo, mimeType, data);
25503d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung                        mLauncher.addAppWidgetFromDrop(createInfo,
25513d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung                            LauncherSettings.Favorites.CONTAINER_DESKTOP, mCurrentPage, null, pos);
2552580e27748137ff08599aa719d106b31215a28353Winson Chung                    } else {
255368846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung                        // Show the widget picker dialog if there is more than one widget
255468846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung                        // that can handle this data type
255568846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung                        final InstallWidgetReceiver.WidgetListAdapter adapter =
255668846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung                            new InstallWidgetReceiver.WidgetListAdapter(mLauncher, mimeType,
255768846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung                                    data, widgets, layout, mCurrentPage, pos);
255868846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung                        final AlertDialog.Builder builder =
255968846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung                            new AlertDialog.Builder(mContext);
256068846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung                        builder.setAdapter(adapter, adapter);
256168846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung                        builder.setCancelable(true);
256268846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung                        builder.setTitle(mContext.getString(
256368846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung                                R.string.external_drop_widget_pick_title));
256468846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung                        builder.setIcon(R.drawable.ic_no_applications);
256568846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung                        builder.show();
256655cef262f97749300c2f6e764da0b00cbcb78879Winson Chung                    }
2567a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung                }
2568a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung            }
2569a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung            return true;
2570580e27748137ff08599aa719d106b31215a28353Winson Chung        }
2571a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung        case DragEvent.ACTION_DRAG_ENDED:
2572a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung            // Hide the page outlines after the drop
257333945b21544bc98381df17726a3537c292d8c985Michael Jurka            layout.setIsDragOccuring(false);
2574a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung            layout.onDragExit();
2575a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung            hideOutlines();
2576a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung            return true;
2577a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung        }
2578a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung        return super.onDragEvent(event);
2579a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung    }
2580a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung
25814516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka    /*
25824516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka    *
25834516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka    * Convert the 2D coordinate xy from the parent View's coordinate space to this CellLayout's
25844516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka    * coordinate space. The argument xy is modified with the return result.
25854516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka    *
25864516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka    */
25874516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka   void mapPointFromSelfToChild(View v, float[] xy) {
25884516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka       mapPointFromSelfToChild(v, xy, null);
25894516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka   }
25904516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka
25914516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka   /*
25924516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka    *
25934516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka    * Convert the 2D coordinate xy from the parent View's coordinate space to this CellLayout's
25944516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka    * coordinate space. The argument xy is modified with the return result.
25954516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka    *
25964516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka    * if cachedInverseMatrix is not null, this method will just use that matrix instead of
2597d718d6a7ba424b600052a147e5633a201a04ccb7Michael Jurka    * computing it itself; we use this to avoid redundant matrix inversions in
25984516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka    * findMatchingPageForDragOver
25994516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka    *
26004516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka    */
26014516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka   void mapPointFromSelfToChild(View v, float[] xy, Matrix cachedInverseMatrix) {
26024516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka       if (cachedInverseMatrix == null) {
26034516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka           v.getMatrix().invert(mTempInverseMatrix);
26044516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka           cachedInverseMatrix = mTempInverseMatrix;
26054516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka       }
26064516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka       xy[0] = xy[0] + mScrollX - v.getLeft();
26074516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka       xy[1] = xy[1] + mScrollY - v.getTop();
26084516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka       cachedInverseMatrix.mapPoints(xy);
26094516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka   }
26104516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka
26114516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka   /*
26123d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung    * Maps a point from the Workspace's coordinate system to another sibling view's. (Workspace
26133d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung    * covers the full screen)
26143d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung    */
26153d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung   void mapPointFromSelfToSibling(View v, float[] xy) {
26163d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung       xy[0] = xy[0] - v.getLeft();
26173d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung       xy[1] = xy[1] - v.getTop();
26183d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung   }
26193d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung
26203d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung   /*
26214516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka    *
26224516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka    * Convert the 2D coordinate xy from this CellLayout's coordinate space to
26234516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka    * the parent View's coordinate space. The argument xy is modified with the return result.
26244516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka    *
26254516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka    */
26264516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka   void mapPointFromChildToSelf(View v, float[] xy) {
26274516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka       v.getMatrix().mapPoints(xy);
26284516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka       xy[0] -= (mScrollX - v.getLeft());
26294516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka       xy[1] -= (mScrollY - v.getTop());
26304516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka   }
26314516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka
2632e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen   static private float squaredDistance(float[] point1, float[] point2) {
26334516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka        float distanceX = point1[0] - point2[0];
26344516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka        float distanceY = point2[1] - point2[1];
26354516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka        return distanceX * distanceX + distanceY * distanceY;
2636e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen   }
26370280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka
26384516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka    /*
26394516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka     *
26404516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka     * Returns true if the passed CellLayout cl overlaps with dragView
26414516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka     *
26424516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka     */
26434516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka    boolean overlaps(CellLayout cl, DragView dragView,
26444516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka            int dragViewX, int dragViewY, Matrix cachedInverseMatrix) {
26454516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka        // Transform the coordinates of the item being dragged to the CellLayout's coordinates
26464516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka        final float[] draggedItemTopLeft = mTempDragCoordinates;
2647f12c75cb48f87955600c56ccbe0aac84b0c11b28Michael Jurka        draggedItemTopLeft[0] = dragViewX;
2648f12c75cb48f87955600c56ccbe0aac84b0c11b28Michael Jurka        draggedItemTopLeft[1] = dragViewY;
26494516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka        final float[] draggedItemBottomRight = mTempDragBottomRightCoordinates;
2650f12c75cb48f87955600c56ccbe0aac84b0c11b28Michael Jurka        draggedItemBottomRight[0] = draggedItemTopLeft[0] + dragView.getDragRegionWidth();
2651f12c75cb48f87955600c56ccbe0aac84b0c11b28Michael Jurka        draggedItemBottomRight[1] = draggedItemTopLeft[1] + dragView.getDragRegionHeight();
26524516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka
26534516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka        // Transform the dragged item's top left coordinates
26544516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka        // to the CellLayout's local coordinates
26554516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka        mapPointFromSelfToChild(cl, draggedItemTopLeft, cachedInverseMatrix);
26564516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka        float overlapRegionLeft = Math.max(0f, draggedItemTopLeft[0]);
26574516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka        float overlapRegionTop = Math.max(0f, draggedItemTopLeft[1]);
26584516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka
26594516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka        if (overlapRegionLeft <= cl.getWidth() && overlapRegionTop >= 0) {
26604516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka            // Transform the dragged item's bottom right coordinates
26614516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka            // to the CellLayout's local coordinates
26624516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka            mapPointFromSelfToChild(cl, draggedItemBottomRight, cachedInverseMatrix);
26634516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka            float overlapRegionRight = Math.min(cl.getWidth(), draggedItemBottomRight[0]);
26644516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka            float overlapRegionBottom = Math.min(cl.getHeight(), draggedItemBottomRight[1]);
26654516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka
26664516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka            if (overlapRegionRight >= 0 && overlapRegionBottom <= cl.getHeight()) {
26674516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka                float overlap = (overlapRegionRight - overlapRegionLeft) *
26684516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka                         (overlapRegionBottom - overlapRegionTop);
26694516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka                if (overlap > 0) {
26704516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka                    return true;
26714516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka                }
26724516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka             }
26734516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka        }
26744516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka        return false;
26754516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka    }
2676a63c452f5bd491ba9b28c332ccedc6c6c7e2f3ccMichael Jurka
26774516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka    /*
26784516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka     *
26794516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka     * This method returns the CellLayout that is currently being dragged to. In order to drag
26804516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka     * to a CellLayout, either the touch point must be directly over the CellLayout, or as a second
26814516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka     * strategy, we see if the dragView is overlapping any CellLayout and choose the closest one
26824516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka     *
26834516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka     * Return null if no CellLayout is currently being dragged over
26844516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka     *
26854516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka     */
26864516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka    private CellLayout findMatchingPageForDragOver(
268700618753e9f0ad941c13efb0b6804e4a06ecb076Adam Cohen            DragView dragView, float originX, float originY, boolean exact) {
26884516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka        // We loop through all the screens (ie CellLayouts) and see which ones overlap
26894516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka        // with the item being dragged and then choose the one that's closest to the touch point
2690a63c452f5bd491ba9b28c332ccedc6c6c7e2f3ccMichael Jurka        final int screenCount = getChildCount();
2691a63c452f5bd491ba9b28c332ccedc6c6c7e2f3ccMichael Jurka        CellLayout bestMatchingScreen = null;
26920280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka        float smallestDistSoFar = Float.MAX_VALUE;
26934516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka
2694a63c452f5bd491ba9b28c332ccedc6c6c7e2f3ccMichael Jurka        for (int i = 0; i < screenCount; i++) {
26953d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung            CellLayout cl = (CellLayout) getChildAt(i);
2696a63c452f5bd491ba9b28c332ccedc6c6c7e2f3ccMichael Jurka
269700618753e9f0ad941c13efb0b6804e4a06ecb076Adam Cohen            final float[] touchXy = {originX, originY};
26984516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka            // Transform the touch coordinates to the CellLayout's local coordinates
26994516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka            // If the touch point is within the bounds of the cell layout, we can return immediately
27000280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka            cl.getMatrix().invert(mTempInverseMatrix);
27014516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka            mapPointFromSelfToChild(cl, touchXy, mTempInverseMatrix);
27024516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka
27034516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka            if (touchXy[0] >= 0 && touchXy[0] <= cl.getWidth() &&
27044516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka                    touchXy[1] >= 0 && touchXy[1] <= cl.getHeight()) {
27054516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka                return cl;
27064516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka            }
27074516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka
270800618753e9f0ad941c13efb0b6804e4a06ecb076Adam Cohen            if (!exact && overlaps(cl, dragView, (int) originX, (int) originY, mTempInverseMatrix)) {
27094516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka                // Get the center of the cell layout in screen coordinates
27104516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka                final float[] cellLayoutCenter = mTempCellLayoutCenterCoordinates;
27114516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka                cellLayoutCenter[0] = cl.getWidth()/2;
27124516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka                cellLayoutCenter[1] = cl.getHeight()/2;
27134516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka                mapPointFromChildToSelf(cl, cellLayoutCenter);
27144516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka
271500618753e9f0ad941c13efb0b6804e4a06ecb076Adam Cohen                touchXy[0] = originX;
271600618753e9f0ad941c13efb0b6804e4a06ecb076Adam Cohen                touchXy[1] = originY;
27174516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka
27184516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka                // Calculate the distance between the center of the CellLayout
27194516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka                // and the touch point
27204516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka                float dist = squaredDistance(touchXy, cellLayoutCenter);
27214516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka
27224516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka                if (dist < smallestDistSoFar) {
27230280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka                    smallestDistSoFar = dist;
2724a63c452f5bd491ba9b28c332ccedc6c6c7e2f3ccMichael Jurka                    bestMatchingScreen = cl;
2725a63c452f5bd491ba9b28c332ccedc6c6c7e2f3ccMichael Jurka                }
27264516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka            }
2727a63c452f5bd491ba9b28c332ccedc6c6c7e2f3ccMichael Jurka        }
2728a63c452f5bd491ba9b28c332ccedc6c6c7e2f3ccMichael Jurka        return bestMatchingScreen;
2729a63c452f5bd491ba9b28c332ccedc6c6c7e2f3ccMichael Jurka    }
2730a63c452f5bd491ba9b28c332ccedc6c6c7e2f3ccMichael Jurka
2731e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen    // This is used to compute the visual center of the dragView. This point is then
2732e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen    // used to visualize drop locations and determine where to drop an item. The idea is that
2733e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen    // the visual center represents the user's interpretation of where the item is, and hence
2734e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen    // is the appropriate point to use when determining drop location.
2735e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen    private float[] getDragViewVisualCenter(int x, int y, int xOffset, int yOffset,
2736e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen            DragView dragView, float[] recycle) {
2737e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen        float res[];
2738e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen        if (recycle == null) {
2739e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen            res = new float[2];
2740e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen        } else {
2741e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen            res = recycle;
2742e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen        }
2743e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen
2744e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen        // First off, the drag view has been shifted in a way that is not represented in the
2745e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen        // x and y values or the x/yOffsets. Here we account for that shift.
2746e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen        x += getResources().getDimensionPixelSize(R.dimen.dragViewOffsetX);
2747e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen        y += getResources().getDimensionPixelSize(R.dimen.dragViewOffsetY);
2748e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen
2749e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen        // These represent the visual top and left of drag view if a dragRect was provided.
2750e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen        // If a dragRect was not provided, then they correspond to the actual view left and
2751e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen        // top, as the dragRect is in that case taken to be the entire dragView.
2752e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen        // R.dimen.dragViewOffsetY.
2753e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen        int left = x - xOffset;
2754e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen        int top = y - yOffset;
2755e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen
2756e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen        // In order to find the visual center, we shift by half the dragRect
2757e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen        res[0] = left + dragView.getDragRegion().width() / 2;
2758e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen        res[1] = top + dragView.getDragRegion().height() / 2;
2759e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen
2760e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen        return res;
2761e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen    }
2762e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen
2763cb3382b1bfe1a534b1b44f5c4def9b2db605ac90Adam Cohen    public void onDragOver(DragObject d) {
2764c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung        // Skip drag over events while we are dragging over side pages
2765c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung        if (mInScrollArea) return;
2766d74c984fcc61f86160476a2543faff715e3ee2fdMichael Jurka        if (mIsSwitchingState) return;
2767c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung
27683d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung        CellLayout layout = null;
2769c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung        ItemInfo item = (ItemInfo) d.dragInfo;
2770c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung
2771c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung        // Ensure that we have proper spans for the item that we are dropping
2772c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung        if (item.spanX < 0 || item.spanY < 0) throw new RuntimeException("Improper spans found");
2773c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung
277400618753e9f0ad941c13efb0b6804e4a06ecb076Adam Cohen        mDragViewVisualCenter = getDragViewVisualCenter(d.x, d.y, d.xOffset, d.yOffset,
277500618753e9f0ad941c13efb0b6804e4a06ecb076Adam Cohen                d.dragView, mDragViewVisualCenter);
277600618753e9f0ad941c13efb0b6804e4a06ecb076Adam Cohen
2777c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung        // Identify whether we have dragged over a side page
2778d74c984fcc61f86160476a2543faff715e3ee2fdMichael Jurka        if (isSmall()) {
277900618753e9f0ad941c13efb0b6804e4a06ecb076Adam Cohen            layout = findMatchingPageForDragOver(d.dragView, mDragViewVisualCenter[0],
278000618753e9f0ad941c13efb0b6804e4a06ecb076Adam Cohen                    mDragViewVisualCenter[1], true);
2781c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung            if (layout != mDragTargetLayout) {
2782c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung                // Cancel all intermediate folder states
2783c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung                cleanupFolderCreation(d);
2784e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen
2785c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung                if (mDragTargetLayout != null) {
2786c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung                    mDragTargetLayout.setIsDragOverlapping(false);
2787c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung                    mDragTargetLayout.onDragExit();
2788d718d6a7ba424b600052a147e5633a201a04ccb7Michael Jurka                }
2789c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung                mDragTargetLayout = layout;
2790c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung                if (mDragTargetLayout != null) {
2791c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung                    mDragTargetLayout.setIsDragOverlapping(true);
2792c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung                    mDragTargetLayout.onDragEnter();
2793c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung                } else {
2794c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung                    mLastDragOverView = null;
2795c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung                }
2796c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung
2797d74c984fcc61f86160476a2543faff715e3ee2fdMichael Jurka                boolean isInSpringLoadedMode = (mState == State.SPRING_LOADED);
2798c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung                if (isInSpringLoadedMode) {
2799c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung                    mSpringLoadedDragController.setAlarm(mDragTargetLayout);
2800d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka                }
2801d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka            }
2802c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung        } else {
28033d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung            // Test to see if we are over the hotseat otherwise just use the current page
28043d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung            Rect r = new Rect();
28053d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung            if (mLauncher.getHotseat() != null) {
28063d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung                mLauncher.getHotseat().getHitRect(r);
28073d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung                if (r.contains(d.x, d.y)) {
28083d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung                    layout = mLauncher.getHotseat().getLayout();
28093d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung                }
28103d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung            }
28113d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung            if (layout == null) {
28123d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung                layout = getCurrentDropLayout();
28133d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung            }
2814c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung            if (layout != mDragTargetLayout) {
2815c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung                if (mDragTargetLayout != null) {
2816c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung                    mDragTargetLayout.setIsDragOverlapping(false);
2817c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung                    mDragTargetLayout.onDragExit();
2818d718d6a7ba424b600052a147e5633a201a04ccb7Michael Jurka                }
2819c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung                mDragTargetLayout = layout;
2820c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung                mDragTargetLayout.setIsDragOverlapping(true);
2821c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung                mDragTargetLayout.onDragEnter();
2822c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung            }
2823c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung        }
2824a63c452f5bd491ba9b28c332ccedc6c6c7e2f3ccMichael Jurka
2825c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung        // Handle the drag over
2826c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung        if (mDragTargetLayout != null) {
2827c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung            final View child = (mDragInfo == null) ? null : mDragInfo.cell;
282819072da7441e07d5e90026d9e9e1b38f11245e44Adam Cohen
2829c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung            // We want the point to be mapped to the dragTarget.
28303d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung            if (mLauncher.isHotseatLayout(mDragTargetLayout)) {
28313d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung                mapPointFromSelfToSibling(mLauncher.getHotseat(), mDragViewVisualCenter);
28323d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung            } else {
28333d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung                mapPointFromSelfToChild(mDragTargetLayout, mDragViewVisualCenter, null);
28343d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung            }
2835c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung            ItemInfo info = (ItemInfo) d.dragInfo;
283619072da7441e07d5e90026d9e9e1b38f11245e44Adam Cohen
2837c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung            mTargetCell = findNearestArea((int) mDragViewVisualCenter[0],
2838c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung                    (int) mDragViewVisualCenter[1], 1, 1, mDragTargetLayout, mTargetCell);
2839c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung            final View dragOverView = mDragTargetLayout.getChildAt(mTargetCell[0],
2840c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung                    mTargetCell[1]);
2841c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung
2842c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung            boolean userFolderPending = willCreateUserFolder(info, mDragTargetLayout,
2843c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung                    mTargetCell, false);
2844c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung            boolean isOverFolder = dragOverView instanceof FolderIcon;
2845c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung            if (dragOverView != mLastDragOverView) {
2846c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung                cancelFolderCreation();
2847c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung                if (mLastDragOverView != null && mLastDragOverView instanceof FolderIcon) {
2848c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung                    ((FolderIcon) mLastDragOverView).onDragExit(d.dragInfo);
2849d718d6a7ba424b600052a147e5633a201a04ccb7Michael Jurka                }
28501262e369484ce7f2565655ed80e6299232c70bd7Patrick Dubroy            }
2851c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung
2852c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung            if (userFolderPending && dragOverView != mLastDragOverView) {
2853c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung                mFolderCreationAlarm.setOnAlarmListener(new
2854c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung                        FolderCreationAlarmListener(mDragTargetLayout, mTargetCell[0], mTargetCell[1]));
2855c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung                mFolderCreationAlarm.setAlarm(FOLDER_CREATION_TIMEOUT);
2856c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung            }
2857c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung
2858c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung            if (dragOverView != mLastDragOverView && isOverFolder) {
2859c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung                ((FolderIcon) dragOverView).onDragEnter(d.dragInfo);
2860c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung                if (mDragTargetLayout != null) {
2861c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung                    mDragTargetLayout.clearDragOutlines();
2862c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung                }
2863c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung            }
2864c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung            mLastDragOverView = dragOverView;
2865c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung
2866c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung            if (!mCreateUserFolderOnDrop && !isOverFolder) {
2867c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung                mDragTargetLayout.visualizeDropLocation(child, mDragOutline,
2868c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung                        (int) mDragViewVisualCenter[0], (int) mDragViewVisualCenter[1],
2869c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung                        item.spanX, item.spanY);
2870c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung            }
2871c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung        }
2872c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung    }
2873c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung
2874c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung    private void cleanupFolderCreation(DragObject d) {
2875c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung        if (mDragFolderRingAnimator != null && mCreateUserFolderOnDrop) {
2876c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung            mDragFolderRingAnimator.animateToNaturalState();
2877c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung        }
2878c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung        if (mLastDragOverView != null && mLastDragOverView instanceof FolderIcon) {
2879c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung            if (d != null) {
2880c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung                ((FolderIcon) mLastDragOverView).onDragExit(d.dragInfo);
2881c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung            }
2882976ebec9e31643d3513f9f0de2b433d9aa186ce9Patrick Dubroy        }
2883c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung        mFolderCreationAlarm.cancelAlarm();
288431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
288531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
2886c0dcf597084d00e4c23a7fea5fd0738f6c095a6bAdam Cohen    private void cancelFolderCreation() {
2887c0dcf597084d00e4c23a7fea5fd0738f6c095a6bAdam Cohen        if (mDragFolderRingAnimator != null && mCreateUserFolderOnDrop) {
2888c0dcf597084d00e4c23a7fea5fd0738f6c095a6bAdam Cohen            mDragFolderRingAnimator.animateToNaturalState();
2889c0dcf597084d00e4c23a7fea5fd0738f6c095a6bAdam Cohen        }
2890c0dcf597084d00e4c23a7fea5fd0738f6c095a6bAdam Cohen        mCreateUserFolderOnDrop = false;
2891c0dcf597084d00e4c23a7fea5fd0738f6c095a6bAdam Cohen        mFolderCreationAlarm.cancelAlarm();
2892c0dcf597084d00e4c23a7fea5fd0738f6c095a6bAdam Cohen    }
2893c0dcf597084d00e4c23a7fea5fd0738f6c095a6bAdam Cohen
289419072da7441e07d5e90026d9e9e1b38f11245e44Adam Cohen    class FolderCreationAlarmListener implements OnAlarmListener {
289569ce2e5beaa1a57c7b8fa14a2d6ff0b3abeb93c0Adam Cohen        CellLayout layout;
289669ce2e5beaa1a57c7b8fa14a2d6ff0b3abeb93c0Adam Cohen        int cellX;
289769ce2e5beaa1a57c7b8fa14a2d6ff0b3abeb93c0Adam Cohen        int cellY;
289819072da7441e07d5e90026d9e9e1b38f11245e44Adam Cohen
289969ce2e5beaa1a57c7b8fa14a2d6ff0b3abeb93c0Adam Cohen        public FolderCreationAlarmListener(CellLayout layout, int cellX, int cellY) {
290069ce2e5beaa1a57c7b8fa14a2d6ff0b3abeb93c0Adam Cohen            this.layout = layout;
290169ce2e5beaa1a57c7b8fa14a2d6ff0b3abeb93c0Adam Cohen            this.cellX = cellX;
290269ce2e5beaa1a57c7b8fa14a2d6ff0b3abeb93c0Adam Cohen            this.cellY = cellY;
290319072da7441e07d5e90026d9e9e1b38f11245e44Adam Cohen        }
290419072da7441e07d5e90026d9e9e1b38f11245e44Adam Cohen
290519072da7441e07d5e90026d9e9e1b38f11245e44Adam Cohen        public void onAlarm(Alarm alarm) {
290619072da7441e07d5e90026d9e9e1b38f11245e44Adam Cohen            if (mDragFolderRingAnimator == null) {
290719072da7441e07d5e90026d9e9e1b38f11245e44Adam Cohen                mDragFolderRingAnimator = new FolderRingAnimator(mLauncher, null);
290819072da7441e07d5e90026d9e9e1b38f11245e44Adam Cohen            }
290969ce2e5beaa1a57c7b8fa14a2d6ff0b3abeb93c0Adam Cohen            mDragFolderRingAnimator.setCell(cellX, cellY);
291069ce2e5beaa1a57c7b8fa14a2d6ff0b3abeb93c0Adam Cohen            mDragFolderRingAnimator.setCellLayout(layout);
291119072da7441e07d5e90026d9e9e1b38f11245e44Adam Cohen            mDragFolderRingAnimator.animateToAcceptState();
291269ce2e5beaa1a57c7b8fa14a2d6ff0b3abeb93c0Adam Cohen            layout.showFolderAccept(mDragFolderRingAnimator);
291369ce2e5beaa1a57c7b8fa14a2d6ff0b3abeb93c0Adam Cohen            layout.clearDragOutlines();
291419072da7441e07d5e90026d9e9e1b38f11245e44Adam Cohen            mCreateUserFolderOnDrop = true;
291519072da7441e07d5e90026d9e9e1b38f11245e44Adam Cohen        }
291619072da7441e07d5e90026d9e9e1b38f11245e44Adam Cohen    }
291719072da7441e07d5e90026d9e9e1b38f11245e44Adam Cohen
2918a34abf8c781485b788fddacb352d586bffca886cWinson Chung    @Override
2919a34abf8c781485b788fddacb352d586bffca886cWinson Chung    public void getHitRect(Rect outRect) {
2920a34abf8c781485b788fddacb352d586bffca886cWinson Chung        // We want the workspace to have the whole area of the display (it will find the correct
2921a34abf8c781485b788fddacb352d586bffca886cWinson Chung        // cell layout to drop to in the existing drag/drop logic.
2922a34abf8c781485b788fddacb352d586bffca886cWinson Chung        final Display d = mLauncher.getWindowManager().getDefaultDisplay();
2923a34abf8c781485b788fddacb352d586bffca886cWinson Chung        outRect.set(0, 0, d.getWidth(), d.getHeight());
2924a34abf8c781485b788fddacb352d586bffca886cWinson Chung    }
2925a34abf8c781485b788fddacb352d586bffca886cWinson Chung
29262b9ff37edb3f5965559b3ff7d37e418b4a2917a1Patrick Dubroy    /**
29272b9ff37edb3f5965559b3ff7d37e418b4a2917a1Patrick Dubroy     * Add the item specified by dragInfo to the given layout.
29282b9ff37edb3f5965559b3ff7d37e418b4a2917a1Patrick Dubroy     * @return true if successful
29292b9ff37edb3f5965559b3ff7d37e418b4a2917a1Patrick Dubroy     */
2930120980bd00f5eecec5717f49a3d7db96571025a9Adam Cohen    public boolean addExternalItemToScreen(ItemInfo dragInfo, CellLayout layout) {
2931120980bd00f5eecec5717f49a3d7db96571025a9Adam Cohen        if (layout.findCellForSpan(mTempEstimate, dragInfo.spanX, dragInfo.spanY)) {
2932bbaa75c8c432c46c00ee2eb836e438b3774d6709Patrick Dubroy            onDropExternal(dragInfo.dropPos, (ItemInfo) dragInfo, (CellLayout) layout, false);
29332b9ff37edb3f5965559b3ff7d37e418b4a2917a1Patrick Dubroy            return true;
29342b9ff37edb3f5965559b3ff7d37e418b4a2917a1Patrick Dubroy        }
29350280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka        mLauncher.showOutOfSpaceMessage();
29362b9ff37edb3f5965559b3ff7d37e418b4a2917a1Patrick Dubroy        return false;
29372b9ff37edb3f5965559b3ff7d37e418b4a2917a1Patrick Dubroy    }
29382b9ff37edb3f5965559b3ff7d37e418b4a2917a1Patrick Dubroy
2939d5e42733799817d11d739b0a882da8dda721126dAdam Cohen    private void onDropExternal(int[] touchXY, Object dragInfo,
2940d5e42733799817d11d739b0a882da8dda721126dAdam Cohen            CellLayout cellLayout, boolean insertAtFirst) {
2941e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen        onDropExternal(touchXY, dragInfo, cellLayout, insertAtFirst, null);
2942d5e42733799817d11d739b0a882da8dda721126dAdam Cohen    }
2943d5e42733799817d11d739b0a882da8dda721126dAdam Cohen
2944120980bd00f5eecec5717f49a3d7db96571025a9Adam Cohen    /**
2945120980bd00f5eecec5717f49a3d7db96571025a9Adam Cohen     * Drop an item that didn't originate on one of the workspace screens.
2946120980bd00f5eecec5717f49a3d7db96571025a9Adam Cohen     * It may have come from Launcher (e.g. from all apps or customize), or it may have
2947120980bd00f5eecec5717f49a3d7db96571025a9Adam Cohen     * come from another app altogether.
2948120980bd00f5eecec5717f49a3d7db96571025a9Adam Cohen     *
2949120980bd00f5eecec5717f49a3d7db96571025a9Adam Cohen     * NOTE: This can also be called when we are outside of a drag event, when we want
2950120980bd00f5eecec5717f49a3d7db96571025a9Adam Cohen     * to add an item to one of the workspace screens.
2951120980bd00f5eecec5717f49a3d7db96571025a9Adam Cohen     */
2952557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung    private void onDropExternal(final int[] touchXY, final Object dragInfo,
2953557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung            final CellLayout cellLayout, boolean insertAtFirst, DragObject d) {
2954557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung        final Runnable exitSpringLoadedRunnable = new Runnable() {
2955557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung            @Override
2956557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung            public void run() {
2957557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung                mLauncher.exitSpringLoadedDragModeDelayed(false);
2958557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung            }
2959557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung        };
2960b7e1618c627c6471c565f4f599228648d9e70a10Adam Cohen
2961b7e1618c627c6471c565f4f599228648d9e70a10Adam Cohen        ItemInfo info = (ItemInfo) dragInfo;
2962b7e1618c627c6471c565f4f599228648d9e70a10Adam Cohen        int spanX = info.spanX;
2963b7e1618c627c6471c565f4f599228648d9e70a10Adam Cohen        int spanY = info.spanY;
2964b7e1618c627c6471c565f4f599228648d9e70a10Adam Cohen        if (mDragInfo != null) {
2965b7e1618c627c6471c565f4f599228648d9e70a10Adam Cohen            spanX = mDragInfo.spanX;
2966b7e1618c627c6471c565f4f599228648d9e70a10Adam Cohen            spanY = mDragInfo.spanY;
2967b7e1618c627c6471c565f4f599228648d9e70a10Adam Cohen        }
2968b7e1618c627c6471c565f4f599228648d9e70a10Adam Cohen
29693d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung        final long container = mLauncher.isHotseatLayout(cellLayout) ?
29703d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung                LauncherSettings.Favorites.CONTAINER_HOTSEAT :
29713d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung                    LauncherSettings.Favorites.CONTAINER_DESKTOP;
2972557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung        final int screen = indexOfChild(cellLayout);
29733d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung        if (!mLauncher.isHotseatLayout(cellLayout) && screen != mCurrentPage
29743d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung                && mState != State.SPRING_LOADED) {
297576078c4ef35b6e95fb6d8129a32cf52a36625e28Adam Cohen            snapToPage(screen);
297676078c4ef35b6e95fb6d8129a32cf52a36625e28Adam Cohen        }
2977b7e1618c627c6471c565f4f599228648d9e70a10Adam Cohen
2978b7e1618c627c6471c565f4f599228648d9e70a10Adam Cohen        if (info instanceof PendingAddItemInfo) {
2979b7e1618c627c6471c565f4f599228648d9e70a10Adam Cohen            final PendingAddItemInfo pendingInfo = (PendingAddItemInfo) dragInfo;
2980b7e1618c627c6471c565f4f599228648d9e70a10Adam Cohen
2981fbba09bb1a67f44ba9537f0fc9988f696e899d42Adam Cohen            mTargetCell = findNearestVacantArea(touchXY[0], touchXY[1], spanX, spanY, null,
2982fbba09bb1a67f44ba9537f0fc9988f696e899d42Adam Cohen                    cellLayout, mTargetCell);
2983b7e1618c627c6471c565f4f599228648d9e70a10Adam Cohen            Runnable onAnimationCompleteRunnable = new Runnable() {
2984557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung                @Override
2985557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung                public void run() {
2986557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung                    // When dragging and dropping from customization tray, we deal with creating
2987557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung                    // widgets/shortcuts/folders in a slightly different way
2988b7e1618c627c6471c565f4f599228648d9e70a10Adam Cohen                    switch (pendingInfo.itemType) {
2989557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung                    case LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET:
2990b7e1618c627c6471c565f4f599228648d9e70a10Adam Cohen                        mLauncher.addAppWidgetFromDrop((PendingAddWidgetInfo) pendingInfo,
29913d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung                                container, screen, mTargetCell, null);
2992557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung                        break;
2993557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung                    case LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT:
2994b7e1618c627c6471c565f4f599228648d9e70a10Adam Cohen                        mLauncher.processShortcutFromDrop(pendingInfo.componentName,
29953d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung                                container, screen, mTargetCell, null);
2996557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung                        break;
2997557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung                    default:
2998b7e1618c627c6471c565f4f599228648d9e70a10Adam Cohen                        throw new IllegalStateException("Unknown item type: " +
2999b7e1618c627c6471c565f4f599228648d9e70a10Adam Cohen                                pendingInfo.itemType);
3000557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung                    }
3001557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung                    cellLayout.onDragExit();
3002557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung                }
3003b7e1618c627c6471c565f4f599228648d9e70a10Adam Cohen            };
3004b7e1618c627c6471c565f4f599228648d9e70a10Adam Cohen
3005b7e1618c627c6471c565f4f599228648d9e70a10Adam Cohen            // Now we animate the dragView, (ie. the widget or shortcut preview) into its final
3006b7e1618c627c6471c565f4f599228648d9e70a10Adam Cohen            // location and size on the home screen.
3007b7e1618c627c6471c565f4f599228648d9e70a10Adam Cohen            int loc[] = new int[2];
3008b7e1618c627c6471c565f4f599228648d9e70a10Adam Cohen            cellLayout.cellToPoint(mTargetCell[0], mTargetCell[1], loc);
3009b7e1618c627c6471c565f4f599228648d9e70a10Adam Cohen
3010b7e1618c627c6471c565f4f599228648d9e70a10Adam Cohen            RectF r = new RectF();
3011b7e1618c627c6471c565f4f599228648d9e70a10Adam Cohen            cellLayout.cellToRect(mTargetCell[0], mTargetCell[1], spanX, spanY, r);
30124b285c5a60028f7c9ce39cfb318a730d0ae95c27Adam Cohen            setFinalTransitionTransform(cellLayout);
3013b7e1618c627c6471c565f4f599228648d9e70a10Adam Cohen            float cellLayoutScale =
3014b7e1618c627c6471c565f4f599228648d9e70a10Adam Cohen                    mLauncher.getDragLayer().getDescendantCoordRelativeToSelf(cellLayout, loc);
30154b285c5a60028f7c9ce39cfb318a730d0ae95c27Adam Cohen            resetTransitionTransform(cellLayout);
3016b7e1618c627c6471c565f4f599228648d9e70a10Adam Cohen
3017b7e1618c627c6471c565f4f599228648d9e70a10Adam Cohen            float dragViewScale =  r.width() / d.dragView.getMeasuredWidth();
3018b7e1618c627c6471c565f4f599228648d9e70a10Adam Cohen            // The animation will scale the dragView about its center, so we need to center about
3019b7e1618c627c6471c565f4f599228648d9e70a10Adam Cohen            // the final location.
3020b7e1618c627c6471c565f4f599228648d9e70a10Adam Cohen            loc[0] -= (d.dragView.getMeasuredWidth() - cellLayoutScale * r.width()) / 2;
3021b7e1618c627c6471c565f4f599228648d9e70a10Adam Cohen            loc[1] -= (d.dragView.getMeasuredHeight() - cellLayoutScale * r.height()) / 2;
3022b7e1618c627c6471c565f4f599228648d9e70a10Adam Cohen
3023b7e1618c627c6471c565f4f599228648d9e70a10Adam Cohen            mLauncher.getDragLayer().animateViewIntoPosition(d.dragView, loc,
3024b7e1618c627c6471c565f4f599228648d9e70a10Adam Cohen                    dragViewScale * cellLayoutScale, onAnimationCompleteRunnable);
30259c6de3d7c3e7d40e1e443b6fd69e3077ab9e9673Michael Jurka        } else {
30269c6de3d7c3e7d40e1e443b6fd69e3077ab9e9673Michael Jurka            // This is for other drag/drop cases, like dragging from All Apps
30279c6de3d7c3e7d40e1e443b6fd69e3077ab9e9673Michael Jurka            View view = null;
302831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
30299c6de3d7c3e7d40e1e443b6fd69e3077ab9e9673Michael Jurka            switch (info.itemType) {
30309c6de3d7c3e7d40e1e443b6fd69e3077ab9e9673Michael Jurka            case LauncherSettings.Favorites.ITEM_TYPE_APPLICATION:
30319c6de3d7c3e7d40e1e443b6fd69e3077ab9e9673Michael Jurka            case LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT:
30329c6de3d7c3e7d40e1e443b6fd69e3077ab9e9673Michael Jurka                if (info.container == NO_ID && info instanceof ApplicationInfo) {
30339c6de3d7c3e7d40e1e443b6fd69e3077ab9e9673Michael Jurka                    // Came from all apps -- make a copy
30349c6de3d7c3e7d40e1e443b6fd69e3077ab9e9673Michael Jurka                    info = new ShortcutInfo((ApplicationInfo) info);
30359c6de3d7c3e7d40e1e443b6fd69e3077ab9e9673Michael Jurka                }
30369c6de3d7c3e7d40e1e443b6fd69e3077ab9e9673Michael Jurka                view = mLauncher.createShortcut(R.layout.application, cellLayout,
30379c6de3d7c3e7d40e1e443b6fd69e3077ab9e9673Michael Jurka                        (ShortcutInfo) info);
30389c6de3d7c3e7d40e1e443b6fd69e3077ab9e9673Michael Jurka                break;
3039df2cc41acbfacd576f99483a4af1cda32ebd3d09Adam Cohen            case LauncherSettings.Favorites.ITEM_TYPE_FOLDER:
3040c0dcf597084d00e4c23a7fea5fd0738f6c095a6bAdam Cohen                view = FolderIcon.fromXml(R.layout.folder_icon, mLauncher, cellLayout,
3041c0dcf597084d00e4c23a7fea5fd0738f6c095a6bAdam Cohen                        (FolderInfo) info, mIconCache);
30429c6de3d7c3e7d40e1e443b6fd69e3077ab9e9673Michael Jurka                break;
30439c6de3d7c3e7d40e1e443b6fd69e3077ab9e9673Michael Jurka            default:
30449c6de3d7c3e7d40e1e443b6fd69e3077ab9e9673Michael Jurka                throw new IllegalStateException("Unknown item type: " + info.itemType);
30459c6de3d7c3e7d40e1e443b6fd69e3077ab9e9673Michael Jurka            }
304631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
3047c0dcf597084d00e4c23a7fea5fd0738f6c095a6bAdam Cohen            // First we find the cell nearest to point at which the item is
3048c0dcf597084d00e4c23a7fea5fd0738f6c095a6bAdam Cohen            // dropped, without any consideration to whether there is an item there.
3049c0dcf597084d00e4c23a7fea5fd0738f6c095a6bAdam Cohen            if (touchXY != null) {
3050c0dcf597084d00e4c23a7fea5fd0738f6c095a6bAdam Cohen                mTargetCell = findNearestArea((int) touchXY[0], (int) touchXY[1], spanX, spanY,
3051c0dcf597084d00e4c23a7fea5fd0738f6c095a6bAdam Cohen                        cellLayout, mTargetCell);
3052557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung                d.postAnimationRunnable = exitSpringLoadedRunnable;
30533d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung                if (createUserFolderIfNecessary(view, container, cellLayout, mTargetCell, true,
30543d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung                        d.dragView, d.postAnimationRunnable)) {
3055c0dcf597084d00e4c23a7fea5fd0738f6c095a6bAdam Cohen                    return;
3056c0dcf597084d00e4c23a7fea5fd0738f6c095a6bAdam Cohen                }
30573e8f811f31a2275e778244427271f77f4116c08bAdam Cohen                if (addToExistingFolderIfNecessary(view, cellLayout, mTargetCell, d, true)) {
3058c0dcf597084d00e4c23a7fea5fd0738f6c095a6bAdam Cohen                    return;
3059c0dcf597084d00e4c23a7fea5fd0738f6c095a6bAdam Cohen                }
306010b1737910ea7890ca95bbbe5363fd5aa513b856Adam Cohen            }
306110b1737910ea7890ca95bbbe5363fd5aa513b856Adam Cohen
3062c4e772e4b3f21bde342e475ebc49b5b76b8f74e8Michael Jurka            if (touchXY != null) {
30639c6de3d7c3e7d40e1e443b6fd69e3077ab9e9673Michael Jurka                // when dragging and dropping, just find the closest free spot
3064c0dcf597084d00e4c23a7fea5fd0738f6c095a6bAdam Cohen                mTargetCell = findNearestVacantArea(touchXY[0], touchXY[1], 1, 1, null,
3065c0dcf597084d00e4c23a7fea5fd0738f6c095a6bAdam Cohen                        cellLayout, mTargetCell);
30669c6de3d7c3e7d40e1e443b6fd69e3077ab9e9673Michael Jurka            } else {
30679c6de3d7c3e7d40e1e443b6fd69e3077ab9e9673Michael Jurka                cellLayout.findCellForSpan(mTargetCell, 1, 1);
306831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            }
30693d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung            addInScreen(view, container, screen, mTargetCell[0], mTargetCell[1], info.spanX,
30703d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung                    info.spanY, insertAtFirst);
3071716b51e030f9c6ed34af2b947760e46a280c65a6Adam Cohen            cellLayout.onDropChild(view);
3072d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka            cellLayout.animateDrop();
30736569f2c80e179c2f8ed73dae6b01d971ec20f005Patrick Dubroy            CellLayout.LayoutParams lp = (CellLayout.LayoutParams) view.getLayoutParams();
3074d5e42733799817d11d739b0a882da8dda721126dAdam Cohen            cellLayout.getChildrenLayout().measureChild(view);
3075d5e42733799817d11d739b0a882da8dda721126dAdam Cohen
30763d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung            LauncherModel.addOrMoveItemInDatabase(mLauncher, info, container, screen,
3077aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung                    lp.cellX, lp.cellY);
30783e8f811f31a2275e778244427271f77f4116c08bAdam Cohen
30793e8f811f31a2275e778244427271f77f4116c08bAdam Cohen            if (d.dragView != null) {
30804b285c5a60028f7c9ce39cfb318a730d0ae95c27Adam Cohen                // We wrap the animation call in the temporary set and reset of the current
30814b285c5a60028f7c9ce39cfb318a730d0ae95c27Adam Cohen                // cellLayout to its final transform -- this means we animate the drag view to
30824b285c5a60028f7c9ce39cfb318a730d0ae95c27Adam Cohen                // the correct final location.
30834b285c5a60028f7c9ce39cfb318a730d0ae95c27Adam Cohen                setFinalTransitionTransform(cellLayout);
3084557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung                mLauncher.getDragLayer().animateViewIntoPosition(d.dragView, view,
30854b285c5a60028f7c9ce39cfb318a730d0ae95c27Adam Cohen                        exitSpringLoadedRunnable);
30864b285c5a60028f7c9ce39cfb318a730d0ae95c27Adam Cohen                resetTransitionTransform(cellLayout);
30874b285c5a60028f7c9ce39cfb318a730d0ae95c27Adam Cohen            }
30884b285c5a60028f7c9ce39cfb318a730d0ae95c27Adam Cohen        }
30894b285c5a60028f7c9ce39cfb318a730d0ae95c27Adam Cohen    }
30904b285c5a60028f7c9ce39cfb318a730d0ae95c27Adam Cohen
30914b285c5a60028f7c9ce39cfb318a730d0ae95c27Adam Cohen    public void setFinalTransitionTransform(CellLayout layout) {
30924b285c5a60028f7c9ce39cfb318a730d0ae95c27Adam Cohen        if (isSwitchingState()) {
30934b285c5a60028f7c9ce39cfb318a730d0ae95c27Adam Cohen            int index = indexOfChild(layout);
30944b285c5a60028f7c9ce39cfb318a730d0ae95c27Adam Cohen            mCurrentScaleX = layout.getScaleX();
30954b285c5a60028f7c9ce39cfb318a730d0ae95c27Adam Cohen            mCurrentScaleY = layout.getScaleY();
30964b285c5a60028f7c9ce39cfb318a730d0ae95c27Adam Cohen            mCurrentTranslationX = layout.getTranslationX();
30974b285c5a60028f7c9ce39cfb318a730d0ae95c27Adam Cohen            mCurrentTranslationY = layout.getTranslationY();
30984b285c5a60028f7c9ce39cfb318a730d0ae95c27Adam Cohen            mCurrentRotationY = layout.getRotationY();
30994b285c5a60028f7c9ce39cfb318a730d0ae95c27Adam Cohen            layout.setScaleX(mNewScaleXs[index]);
31004b285c5a60028f7c9ce39cfb318a730d0ae95c27Adam Cohen            layout.setScaleY(mNewScaleYs[index]);
31014b285c5a60028f7c9ce39cfb318a730d0ae95c27Adam Cohen            layout.setTranslationX(mNewTranslationXs[index]);
31024b285c5a60028f7c9ce39cfb318a730d0ae95c27Adam Cohen            layout.setTranslationY(mNewTranslationYs[index]);
31034b285c5a60028f7c9ce39cfb318a730d0ae95c27Adam Cohen            layout.setRotationY(mNewRotationYs[index]);
31044b285c5a60028f7c9ce39cfb318a730d0ae95c27Adam Cohen        }
31054b285c5a60028f7c9ce39cfb318a730d0ae95c27Adam Cohen    }
31064b285c5a60028f7c9ce39cfb318a730d0ae95c27Adam Cohen    public void resetTransitionTransform(CellLayout layout) {
31074b285c5a60028f7c9ce39cfb318a730d0ae95c27Adam Cohen        if (isSwitchingState()) {
31084b285c5a60028f7c9ce39cfb318a730d0ae95c27Adam Cohen            mCurrentScaleX = layout.getScaleX();
31094b285c5a60028f7c9ce39cfb318a730d0ae95c27Adam Cohen            mCurrentScaleY = layout.getScaleY();
31104b285c5a60028f7c9ce39cfb318a730d0ae95c27Adam Cohen            mCurrentTranslationX = layout.getTranslationX();
31114b285c5a60028f7c9ce39cfb318a730d0ae95c27Adam Cohen            mCurrentTranslationY = layout.getTranslationY();
31124b285c5a60028f7c9ce39cfb318a730d0ae95c27Adam Cohen            mCurrentRotationY = layout.getRotationY();
31134b285c5a60028f7c9ce39cfb318a730d0ae95c27Adam Cohen            layout.setScaleX(mCurrentScaleX);
31144b285c5a60028f7c9ce39cfb318a730d0ae95c27Adam Cohen            layout.setScaleY(mCurrentScaleY);
31154b285c5a60028f7c9ce39cfb318a730d0ae95c27Adam Cohen            layout.setTranslationX(mCurrentTranslationX);
31164b285c5a60028f7c9ce39cfb318a730d0ae95c27Adam Cohen            layout.setTranslationY(mCurrentTranslationY);
31174b285c5a60028f7c9ce39cfb318a730d0ae95c27Adam Cohen            layout.setRotationY(mCurrentRotationY);
3118af44209bfa60da3c7ab49b7f508f9effd316ee41Michael Jurka        }
311931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
3120aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung
312170864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey    /**
312270864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey     * Return the current {@link CellLayout}, correctly picking the destination
312370864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey     * screen while a scroll is in progress.
312470864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey     */
31255f445425606b2c27276a79e9e871cf7f67b1b719Patrick Dubroy    public CellLayout getCurrentDropLayout() {
31265f445425606b2c27276a79e9e871cf7f67b1b719Patrick Dubroy        return (CellLayout) getChildAt(mNextPage == INVALID_PAGE ? mCurrentPage : mNextPage);
312770864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey    }
312831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
312970864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey    /**
31300280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka     * Return the current CellInfo describing our current drag; this method exists
31310280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka     * so that Launcher can sync this object with the correct info when the activity is created/
31320280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka     * destroyed
31330280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka     *
31340280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka     */
31350280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka    public CellLayout.CellInfo getDragInfo() {
31360280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka        return mDragInfo;
31370280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka    }
31380280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka
31390280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka    /**
314070864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey     * Calculate the nearest cell where the given object would be dropped.
3141e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen     *
3142e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen     * pixelX and pixelY should be in the coordinate system of layout
314370864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey     */
31446a1435d78d5133b1f37274c4d358bf6d22e10229Michael Jurka    private int[] findNearestVacantArea(int pixelX, int pixelY,
314570864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey            int spanX, int spanY, View ignoreView, CellLayout layout, int[] recycle) {
31460280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka        return layout.findNearestVacantArea(
3147e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen                pixelX, pixelY, spanX, spanY, ignoreView, recycle);
314870864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey    }
3149aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung
3150df0353815c629fc678824b07a234b89a1ff94208Adam Cohen    /**
3151df0353815c629fc678824b07a234b89a1ff94208Adam Cohen     * Calculate the nearest cell where the given object would be dropped.
3152e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen     *
3153e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen     * pixelX and pixelY should be in the coordinate system of layout
3154df0353815c629fc678824b07a234b89a1ff94208Adam Cohen     */
3155df0353815c629fc678824b07a234b89a1ff94208Adam Cohen    private int[] findNearestArea(int pixelX, int pixelY,
3156e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen            int spanX, int spanY, CellLayout layout, int[] recycle) {
3157df0353815c629fc678824b07a234b89a1ff94208Adam Cohen        return layout.findNearestArea(
3158e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen                pixelX, pixelY, spanX, spanY, recycle);
3159df0353815c629fc678824b07a234b89a1ff94208Adam Cohen    }
3160df0353815c629fc678824b07a234b89a1ff94208Adam Cohen
31614c98d9235d164680186180974719f551cf935d08Winson Chung    void setup(Launcher launcher, DragController dragController) {
316231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        mLauncher = launcher;
3163c2f7f4794867cd1b3e97fd0f379ad8ad15958a6cMichael Jurka        mSpringLoadedDragController = new SpringLoadedDragController(mLauncher);
316400acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato        mDragController = dragController;
3165d74c984fcc61f86160476a2543faff715e3ee2fdMichael Jurka
3166d74c984fcc61f86160476a2543faff715e3ee2fdMichael Jurka        // hardware layers on children are enabled on startup, but should be disabled until
3167d74c984fcc61f86160476a2543faff715e3ee2fdMichael Jurka        // needed
3168d74c984fcc61f86160476a2543faff715e3ee2fdMichael Jurka        updateChildrenLayersEnabled();
3169d74c984fcc61f86160476a2543faff715e3ee2fdMichael Jurka        setWallpaperDimension();
317031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
317131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
3172e3887cc4ec3cebda2333298e56a35acb49ccdf13Patrick Dubroy    /**
3173e3887cc4ec3cebda2333298e56a35acb49ccdf13Patrick Dubroy     * Called at the end of a drag which originated on the workspace.
3174e3887cc4ec3cebda2333298e56a35acb49ccdf13Patrick Dubroy     */
3175c0dcf597084d00e4c23a7fea5fd0738f6c095a6bAdam Cohen    public void onDropCompleted(View target, DragObject d, boolean success) {
3176aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung        if (success) {
3177d74c984fcc61f86160476a2543faff715e3ee2fdMichael Jurka            if (target != this) {
3178d74c984fcc61f86160476a2543faff715e3ee2fdMichael Jurka                if (mDragInfo != null) {
31793d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung                    getParentCellLayoutForView(mDragInfo.cell).removeView(mDragInfo.cell);
3180d74c984fcc61f86160476a2543faff715e3ee2fdMichael Jurka                    if (mDragInfo.cell instanceof DropTarget) {
3181d74c984fcc61f86160476a2543faff715e3ee2fdMichael Jurka                        mDragController.removeDropTarget((DropTarget) mDragInfo.cell);
3182d74c984fcc61f86160476a2543faff715e3ee2fdMichael Jurka                    }
318300acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato                }
318431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            }
3185ce34a9768b01115def95f000a6a8f35870f10d3aPatrick Dubroy        } else if (mDragInfo != null) {
3186e3887cc4ec3cebda2333298e56a35acb49ccdf13Patrick Dubroy            // NOTE: When 'success' is true, onDragExit is called by the DragController before
3187e3887cc4ec3cebda2333298e56a35acb49ccdf13Patrick Dubroy            // calling onDropCompleted(). We call it ourselves here, but maybe this should be
3188e3887cc4ec3cebda2333298e56a35acb49ccdf13Patrick Dubroy            // moved into DragController.cancelDrag().
3189c0dcf597084d00e4c23a7fea5fd0738f6c095a6bAdam Cohen            doDragExit(null);
31903d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung            CellLayout cellLayout;
31913d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung            if (mLauncher.isHotseatLayout(target)) {
31923d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung                cellLayout = mLauncher.getHotseat().getLayout();
31933d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung            } else {
31943d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung                cellLayout = (CellLayout) getChildAt(mDragInfo.screen);
31953d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung            }
31963d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung            cellLayout.onDropChild(mDragInfo.cell);
319731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
31984be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato        mDragOutline = null;
319931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        mDragInfo = null;
320031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
320131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
32020280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka    public boolean isDropEnabled() {
32030280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka        return true;
32040280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka    }
32050280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka
32060142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka    @Override
32070142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka    protected void onRestoreInstanceState(Parcelable state) {
32080142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka        super.onRestoreInstanceState(state);
32090142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka        Launcher.setScreen(mCurrentPage);
32100142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka    }
32110142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka
32120142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka    @Override
321331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    public void scrollLeft() {
3214d74c984fcc61f86160476a2543faff715e3ee2fdMichael Jurka        if (!isSmall() && !mIsSwitchingState) {
32150142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka            super.scrollLeft();
321631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
321795bb800de9b0142bea0110b074eddbcf0e475736Adam Cohen        Folder openFolder = getOpenFolder();
321895bb800de9b0142bea0110b074eddbcf0e475736Adam Cohen        if (openFolder != null) {
321995bb800de9b0142bea0110b074eddbcf0e475736Adam Cohen            openFolder.completeDragExit();
322095bb800de9b0142bea0110b074eddbcf0e475736Adam Cohen        }
322131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
322231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
32230142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka    @Override
322431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    public void scrollRight() {
3225d74c984fcc61f86160476a2543faff715e3ee2fdMichael Jurka        if (!isSmall() && !mIsSwitchingState) {
32260142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka            super.scrollRight();
322731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
322895bb800de9b0142bea0110b074eddbcf0e475736Adam Cohen        Folder openFolder = getOpenFolder();
322995bb800de9b0142bea0110b074eddbcf0e475736Adam Cohen        if (openFolder != null) {
323095bb800de9b0142bea0110b074eddbcf0e475736Adam Cohen            openFolder.completeDragExit();
323195bb800de9b0142bea0110b074eddbcf0e475736Adam Cohen        }
323231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
3233138a04170d964da9cdec228e95b976875ae52481Karl Rosaen
32341262e369484ce7f2565655ed80e6299232c70bd7Patrick Dubroy    @Override
32351262e369484ce7f2565655ed80e6299232c70bd7Patrick Dubroy    public void onEnterScrollArea(int direction) {
3236d74c984fcc61f86160476a2543faff715e3ee2fdMichael Jurka        if (!isSmall() && !mIsSwitchingState) {
3237d718d6a7ba424b600052a147e5633a201a04ccb7Michael Jurka            mInScrollArea = true;
323854fa3b95557c283976e8c1aa8a157b460b0b4513Patrick Dubroy
323954fa3b95557c283976e8c1aa8a157b460b0b4513Patrick Dubroy            final int page = mCurrentPage + (direction == DragController.SCROLL_LEFT ? -1 : 1);
324054fa3b95557c283976e8c1aa8a157b460b0b4513Patrick Dubroy            final CellLayout layout = (CellLayout) getChildAt(page);
3241c0dcf597084d00e4c23a7fea5fd0738f6c095a6bAdam Cohen            cancelFolderCreation();
324254fa3b95557c283976e8c1aa8a157b460b0b4513Patrick Dubroy
324354fa3b95557c283976e8c1aa8a157b460b0b4513Patrick Dubroy            if (layout != null) {
3244c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung                // Exit the current layout and mark the overlapping layout
32450207c522472d7252f146f4d39efa456ca5248c6bPatrick Dubroy                if (mDragTargetLayout != null) {
3246c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung                    mDragTargetLayout.setIsDragOverlapping(false);
32470207c522472d7252f146f4d39efa456ca5248c6bPatrick Dubroy                    mDragTargetLayout.onDragExit();
32480207c522472d7252f146f4d39efa456ca5248c6bPatrick Dubroy                }
3249c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung                mDragTargetLayout = layout;
3250c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung                mDragTargetLayout.setIsDragOverlapping(true);
325170b9530f3147663d38875260b48d931793b7d378Patrick Dubroy
3252c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung                // Workspace is responsible for drawing the edge glow on adjacent pages,
3253c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung                // so we need to redraw the workspace when this may have changed.
3254c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung                invalidate();
3255c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung            }
325670b9530f3147663d38875260b48d931793b7d378Patrick Dubroy        }
325708ae2ec4847a971ad1b19c163e3a0d6307a8ed72Patrick Dubroy    }
325808ae2ec4847a971ad1b19c163e3a0d6307a8ed72Patrick Dubroy
32591262e369484ce7f2565655ed80e6299232c70bd7Patrick Dubroy    @Override
32601262e369484ce7f2565655ed80e6299232c70bd7Patrick Dubroy    public void onExitScrollArea() {
3261d718d6a7ba424b600052a147e5633a201a04ccb7Michael Jurka        if (mInScrollArea) {
3262c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung            if (mDragTargetLayout != null) {
3263c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung                // Unmark the overlapping layout and re-enter the current layout
3264c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung                mDragTargetLayout.setIsDragOverlapping(false);
3265c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung                mDragTargetLayout = getCurrentDropLayout();
3266c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung                mDragTargetLayout.onDragEnter();
3267c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung
3268c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung                // Workspace is responsible for drawing the edge glow on adjacent pages,
3269c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung                // so we need to redraw the workspace when this may have changed.
3270c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung                invalidate();
3271c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung            }
3272c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung            mInScrollArea = false;
3273c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung        }
3274c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung    }
3275c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung
3276c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung    private void onResetScrollArea() {
3277c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung        if (mDragTargetLayout != null) {
3278c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung            // Unmark the overlapping layout
3279c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung            mDragTargetLayout.setIsDragOverlapping(false);
3280c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung
3281c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung            // Workspace is responsible for drawing the edge glow on adjacent pages,
3282c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung            // so we need to redraw the workspace when this may have changed.
3283c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung            invalidate();
32841262e369484ce7f2565655ed80e6299232c70bd7Patrick Dubroy        }
3285c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung        mInScrollArea = false;
32861262e369484ce7f2565655ed80e6299232c70bd7Patrick Dubroy    }
32871262e369484ce7f2565655ed80e6299232c70bd7Patrick Dubroy
32883d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung    /**
32893d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung     * Returns a specific CellLayout
32903d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung     */
32913d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung    CellLayout getParentCellLayoutForView(View v) {
32923d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung        ArrayList<CellLayout> layouts = getWorkspaceAndHotseatCellLayouts();
32933d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung        for (CellLayout layout : layouts) {
32943d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung            if (layout.getChildrenLayout().indexOfChild(v) > -1) {
32953d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung                return layout;
32963d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung            }
32973d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung        }
32983d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung        return null;
32993d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung    }
33003d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung
33013d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung    /**
33023d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung     * Returns a list of all the CellLayouts in the workspace.
33033d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung     */
33043d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung    ArrayList<CellLayout> getWorkspaceAndHotseatCellLayouts() {
33053d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung        ArrayList<CellLayout> layouts = new ArrayList<CellLayout>();
33063d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung        int screenCount = getChildCount();
33073d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung        for (int screen = 0; screen < screenCount; screen++) {
33083d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung            layouts.add(((CellLayout) getChildAt(screen)));
33093d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung        }
33103d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung        if (mLauncher.getHotseat() != null) {
33113d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung            layouts.add(mLauncher.getHotseat().getLayout());
33123d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung        }
33133d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung        return layouts;
33143d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung    }
33153d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung
33163d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung    /**
33173d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung     * We should only use this to search for specific children.  Do not use this method to modify
33183d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung     * CellLayoutChildren directly.
33193d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung     */
33203d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung    ArrayList<CellLayoutChildren> getWorkspaceAndHotseatCellLayoutChildren() {
33213d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung        ArrayList<CellLayoutChildren> childrenLayouts = new ArrayList<CellLayoutChildren>();
33223d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung        int screenCount = getChildCount();
332331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        for (int screen = 0; screen < screenCount; screen++) {
33243d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung            childrenLayouts.add(((CellLayout) getChildAt(screen)).getChildrenLayout());
33253d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung        }
33263d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung        if (mLauncher.getHotseat() != null) {
33273d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung            childrenLayouts.add(mLauncher.getHotseat().getLayout().getChildrenLayout());
33283d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung        }
33293d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung        return childrenLayouts;
33303d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung    }
33313d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung
33323d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung    public Folder getFolderForTag(Object tag) {
33333d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung        ArrayList<CellLayoutChildren> childrenLayouts = getWorkspaceAndHotseatCellLayoutChildren();
33343d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung        for (CellLayoutChildren layout: childrenLayouts) {
33353d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung            int count = layout.getChildCount();
333631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            for (int i = 0; i < count; i++) {
33373d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung                View child = layout.getChildAt(i);
33383d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung                if (child instanceof Folder) {
333931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                    Folder f = (Folder) child;
3340aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung                    if (f.getInfo() == tag && f.getInfo().opened) {
334131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                        return f;
334231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                    }
334331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                }
334431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            }
334531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
334631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        return null;
334731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
334831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
334931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    public View getViewForTag(Object tag) {
33503d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung        ArrayList<CellLayoutChildren> childrenLayouts = getWorkspaceAndHotseatCellLayoutChildren();
33513d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung        for (CellLayoutChildren layout: childrenLayouts) {
33523d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung            int count = layout.getChildCount();
335331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            for (int i = 0; i < count; i++) {
33543d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung                View child = layout.getChildAt(i);
335531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                if (child.getTag() == tag) {
335631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                    return child;
335731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                }
335831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            }
335931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
336031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        return null;
336131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
336231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
3363df0353815c629fc678824b07a234b89a1ff94208Adam Cohen    void clearDropTargets() {
33643d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung        ArrayList<CellLayoutChildren> childrenLayouts = getWorkspaceAndHotseatCellLayoutChildren();
33653d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung        for (CellLayoutChildren layout: childrenLayouts) {
3366df0353815c629fc678824b07a234b89a1ff94208Adam Cohen            int childCount = layout.getChildCount();
3367df0353815c629fc678824b07a234b89a1ff94208Adam Cohen            for (int j = 0; j < childCount; j++) {
3368df0353815c629fc678824b07a234b89a1ff94208Adam Cohen                View v = layout.getChildAt(j);
3369df0353815c629fc678824b07a234b89a1ff94208Adam Cohen                if (v instanceof DropTarget) {
3370df0353815c629fc678824b07a234b89a1ff94208Adam Cohen                    mDragController.removeDropTarget((DropTarget) v);
3371df0353815c629fc678824b07a234b89a1ff94208Adam Cohen                }
3372df0353815c629fc678824b07a234b89a1ff94208Adam Cohen            }
3373df0353815c629fc678824b07a234b89a1ff94208Adam Cohen        }
3374df0353815c629fc678824b07a234b89a1ff94208Adam Cohen    }
337531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
337664e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato    void removeItems(final ArrayList<ApplicationInfo> apps) {
3377629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy        final AppWidgetManager widgets = AppWidgetManager.getInstance(getContext());
3378574d20ec84551370987dde530c27ec493bdef564Romain Guy
337964e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato        final HashSet<String> packageNames = new HashSet<String>();
338064e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato        final int appCount = apps.size();
338164e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato        for (int i = 0; i < appCount; i++) {
338264e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato            packageNames.add(apps.get(i).componentName.getPackageName());
338364e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato        }
338464e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato
33853d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung        ArrayList<CellLayout> cellLayouts = getWorkspaceAndHotseatCellLayouts();
33863d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung        for (final CellLayout layoutParent: cellLayouts) {
33877a25a9e39a13df706daeb0a4a82273f3c5151997Winson Chung            final ViewGroup layout = layoutParent.getChildrenLayout();
3388629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy
3389629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy            // Avoid ANRs by treating each screen separately
3390629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy            post(new Runnable() {
3391629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                public void run() {
3392629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                    final ArrayList<View> childrenToRemove = new ArrayList<View>();
3393629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                    childrenToRemove.clear();
3394aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung
3395629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                    int childCount = layout.getChildCount();
3396629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                    for (int j = 0; j < childCount; j++) {
3397629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                        final View view = layout.getChildAt(j);
3398629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                        Object tag = view.getTag();
3399aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung
34000589f0f66ce498512c6ee47482c649d88294c9d0Joe Onorato                        if (tag instanceof ShortcutInfo) {
34010589f0f66ce498512c6ee47482c649d88294c9d0Joe Onorato                            final ShortcutInfo info = (ShortcutInfo) tag;
3402629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                            final Intent intent = info.intent;
3403629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                            final ComponentName name = intent.getComponent();
3404aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung
340564e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato                            if (Intent.ACTION_MAIN.equals(intent.getAction()) && name != null) {
340664e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato                                for (String packageName: packageNames) {
340764e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato                                    if (packageName.equals(name.getPackageName())) {
340864e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato                                        LauncherModel.deleteItemFromDatabase(mLauncher, info);
340964e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato                                        childrenToRemove.add(view);
341064e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato                                    }
341164e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato                                }
3412629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                            }
3413df2cc41acbfacd576f99483a4af1cda32ebd3d09Adam Cohen                        } else if (tag instanceof FolderInfo) {
3414df2cc41acbfacd576f99483a4af1cda32ebd3d09Adam Cohen                            final FolderInfo info = (FolderInfo) tag;
34150589f0f66ce498512c6ee47482c649d88294c9d0Joe Onorato                            final ArrayList<ShortcutInfo> contents = info.contents;
3416629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                            final int contentsCount = contents.size();
3417df1e4e868a1970b756486dadd652651d40276d36Adam Cohen                            final ArrayList<ShortcutInfo> appsToRemoveFromFolder =
3418df1e4e868a1970b756486dadd652651d40276d36Adam Cohen                                    new ArrayList<ShortcutInfo>();
3419aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung
3420629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                            for (int k = 0; k < contentsCount; k++) {
34210589f0f66ce498512c6ee47482c649d88294c9d0Joe Onorato                                final ShortcutInfo appInfo = contents.get(k);
3422629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                                final Intent intent = appInfo.intent;
3423629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                                final ComponentName name = intent.getComponent();
3424aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung
342564e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato                                if (Intent.ACTION_MAIN.equals(intent.getAction()) && name != null) {
342664e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato                                    for (String packageName: packageNames) {
342764e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato                                        if (packageName.equals(name.getPackageName())) {
3428df1e4e868a1970b756486dadd652651d40276d36Adam Cohen                                            appsToRemoveFromFolder.add(appInfo);
342964e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato                                        }
343064e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato                                    }
3431629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                                }
3432629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                            }
3433df1e4e868a1970b756486dadd652651d40276d36Adam Cohen                            for (ShortcutInfo item: appsToRemoveFromFolder) {
3434df1e4e868a1970b756486dadd652651d40276d36Adam Cohen                                info.remove(item);
3435df1e4e868a1970b756486dadd652651d40276d36Adam Cohen                                LauncherModel.deleteItemFromDatabase(mLauncher, item);
3436629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                            }
3437629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                        } else if (tag instanceof LauncherAppWidgetInfo) {
3438629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                            final LauncherAppWidgetInfo info = (LauncherAppWidgetInfo) tag;
3439629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                            final AppWidgetProviderInfo provider =
3440629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                                    widgets.getAppWidgetInfo(info.appWidgetId);
3441e1cc6c3745c9ba721b6ab888d74c9d9e1d13ea6aDaniel Sandler                            if (provider != null) {
344264e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato                                for (String packageName: packageNames) {
344364e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato                                    if (packageName.equals(provider.provider.getPackageName())) {
344464e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato                                        LauncherModel.deleteItemFromDatabase(mLauncher, info);
3445aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung                                        childrenToRemove.add(view);
344664e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato                                    }
344764e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato                                }
3448629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                            }
3449574d20ec84551370987dde530c27ec493bdef564Romain Guy                        }
3450574d20ec84551370987dde530c27ec493bdef564Romain Guy                    }
3451aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung
3452629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                    childCount = childrenToRemove.size();
3453629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                    for (int j = 0; j < childCount; j++) {
3454629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                        View child = childrenToRemove.get(j);
34557a25a9e39a13df706daeb0a4a82273f3c5151997Winson Chung                        // Note: We can not remove the view directly from CellLayoutChildren as this
34567a25a9e39a13df706daeb0a4a82273f3c5151997Winson Chung                        // does not re-mark the spaces as unoccupied.
34577a25a9e39a13df706daeb0a4a82273f3c5151997Winson Chung                        layoutParent.removeViewInLayout(child);
3458629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                        if (child instanceof DropTarget) {
3459629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                            mDragController.removeDropTarget((DropTarget)child);
3460629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                        }
3461574d20ec84551370987dde530c27ec493bdef564Romain Guy                    }
3462aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung
3463629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                    if (childCount > 0) {
3464629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                        layout.requestLayout();
3465629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                        layout.invalidate();
34665c16f3ecd6b47bff3abbe40deb3d39c66a3b0012Romain Guy                    }
346731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                }
3468629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy            });
346931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
347031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
3471f96811cdf564469a7a654a0c876288c9fd14f35eThe Android Open Source Project
347264e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato    void updateShortcuts(ArrayList<ApplicationInfo> apps) {
34733d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung        ArrayList<CellLayoutChildren> childrenLayouts = getWorkspaceAndHotseatCellLayoutChildren();
34743d503fbd9468fb2b9fa645f4f7b91e11229edbfaWinson Chung        for (CellLayoutChildren layout: childrenLayouts) {
3475f96811cdf564469a7a654a0c876288c9fd14f35eThe Android Open Source Project            int childCount = layout.getChildCount();
3476f96811cdf564469a7a654a0c876288c9fd14f35eThe Android Open Source Project            for (int j = 0; j < childCount; j++) {
3477f96811cdf564469a7a654a0c876288c9fd14f35eThe Android Open Source Project                final View view = layout.getChildAt(j);
3478f96811cdf564469a7a654a0c876288c9fd14f35eThe Android Open Source Project                Object tag = view.getTag();
34790589f0f66ce498512c6ee47482c649d88294c9d0Joe Onorato                if (tag instanceof ShortcutInfo) {
34800589f0f66ce498512c6ee47482c649d88294c9d0Joe Onorato                    ShortcutInfo info = (ShortcutInfo)tag;
3481f96811cdf564469a7a654a0c876288c9fd14f35eThe Android Open Source Project                    // We need to check for ACTION_MAIN otherwise getComponent() might
3482f96811cdf564469a7a654a0c876288c9fd14f35eThe Android Open Source Project                    // return null for some shortcuts (for instance, for shortcuts to
3483f96811cdf564469a7a654a0c876288c9fd14f35eThe Android Open Source Project                    // web pages.)
3484f96811cdf564469a7a654a0c876288c9fd14f35eThe Android Open Source Project                    final Intent intent = info.intent;
3485f96811cdf564469a7a654a0c876288c9fd14f35eThe Android Open Source Project                    final ComponentName name = intent.getComponent();
3486f96811cdf564469a7a654a0c876288c9fd14f35eThe Android Open Source Project                    if (info.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPLICATION &&
348764e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato                            Intent.ACTION_MAIN.equals(intent.getAction()) && name != null) {
348864e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato                        final int appCount = apps.size();
3489aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung                        for (int k = 0; k < appCount; k++) {
349064e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato                            ApplicationInfo app = apps.get(k);
349164e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato                            if (app.componentName.equals(name)) {
349264e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato                                info.setIcon(mIconCache.getIcon(info.intent));
349364e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato                                ((TextView)view).setCompoundDrawablesWithIntrinsicBounds(null,
349464e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato                                        new FastBitmapDrawable(info.getIcon(mIconCache)),
349564e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato                                        null, null);
349664e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato                                }
349764e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato                        }
3498f96811cdf564469a7a654a0c876288c9fd14f35eThe Android Open Source Project                    }
3499f96811cdf564469a7a654a0c876288c9fd14f35eThe Android Open Source Project                }
3500f96811cdf564469a7a654a0c876288c9fd14f35eThe Android Open Source Project            }
3501f96811cdf564469a7a654a0c876288c9fd14f35eThe Android Open Source Project        }
3502f96811cdf564469a7a654a0c876288c9fd14f35eThe Android Open Source Project    }
3503f96811cdf564469a7a654a0c876288c9fd14f35eThe Android Open Source Project
350414f122bf847e50a3e7730ccbe57abc25d086a01bJoe Onorato    void moveToDefaultScreen(boolean animate) {
3505de1af7661548692d370518528ff91c7422b9c8aeWinson Chung        if (!isSmall()) {
3506de1af7661548692d370518528ff91c7422b9c8aeWinson Chung            if (animate) {
3507de1af7661548692d370518528ff91c7422b9c8aeWinson Chung                snapToPage(mDefaultPage);
3508de1af7661548692d370518528ff91c7422b9c8aeWinson Chung            } else {
3509de1af7661548692d370518528ff91c7422b9c8aeWinson Chung                setCurrentPage(mDefaultPage);
3510de1af7661548692d370518528ff91c7422b9c8aeWinson Chung            }
3511c45b16862918a0c6c253bba12032165b030565afJoe Onorato        }
35120142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka        getChildAt(mDefaultPage).requestFocus();
351331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
351431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
35150142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka    @Override
35160142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka    public void syncPages() {
35170142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka    }
351831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
35190142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka    @Override
35200142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka    public void syncPageItems(int page) {
352131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
35226a0f57dfafced837a2a282d8feec28d5418be3b9Winson Chung
35236a0f57dfafced837a2a282d8feec28d5418be3b9Winson Chung    @Override
35246a0f57dfafced837a2a282d8feec28d5418be3b9Winson Chung    protected String getCurrentPageDescription() {
35256a0f57dfafced837a2a282d8feec28d5418be3b9Winson Chung        int page = (mNextPage != INVALID_PAGE) ? mNextPage : mCurrentPage;
35266a0f57dfafced837a2a282d8feec28d5418be3b9Winson Chung        return String.format(mContext.getString(R.string.workspace_scroll_format),
35276a0f57dfafced837a2a282d8feec28d5418be3b9Winson Chung                page + 1, getChildCount());
35286a0f57dfafced837a2a282d8feec28d5418be3b9Winson Chung    }
35298dfcba4af7a7ece09e8c7d96053e54f3a383e905Adam Cohen
35308dfcba4af7a7ece09e8c7d96053e54f3a383e905Adam Cohen    public void getLocationInDragLayer(int[] loc) {
35318dfcba4af7a7ece09e8c7d96053e54f3a383e905Adam Cohen        mLauncher.getDragLayer().getLocationInDragLayer(this, loc);
35328dfcba4af7a7ece09e8c7d96053e54f3a383e905Adam Cohen    }
353332174c878c77b4e0f13449f4c26ff6b487bc7ca6Winson Chung
353432174c878c77b4e0f13449f4c26ff6b487bc7ca6Winson Chung    /**
353532174c878c77b4e0f13449f4c26ff6b487bc7ca6Winson Chung     * Return true because we want the scrolling indicator to stretch to fit the space.
353632174c878c77b4e0f13449f4c26ff6b487bc7ca6Winson Chung     */
353732174c878c77b4e0f13449f4c26ff6b487bc7ca6Winson Chung    protected boolean hasElasticScrollIndicator() {
353832174c878c77b4e0f13449f4c26ff6b487bc7ca6Winson Chung        return true;
353932174c878c77b4e0f13449f4c26ff6b487bc7ca6Winson Chung    }
354031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project}
3541