Workspace.java revision ac8c87687b8e063c981f28cb31bab2cc110f26cc
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
78557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung        implements DropTarget, DragSource, DragScroller, View.OnTouchListener {
79e47f55c30b9c24f01f2be861247c92f17fbe4a61Romain Guy    @SuppressWarnings({"UnusedDeclaration"})
803a8820bdbad90642cf5cda4b00a8c92ecb699159Joe Onorato    private static final String TAG = "Launcher.Workspace";
810142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka
82f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen    // Y rotation to apply to the workspace screens
83f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen    private static final float WORKSPACE_ROTATION = 12.5f;
84a985e598f6071f4caca15ba3cb6b2cd3e38b217dAdam Cohen
85a985e598f6071f4caca15ba3cb6b2cd3e38b217dAdam Cohen    // These are extra scale factors to apply to the mini home screens
86a985e598f6071f4caca15ba3cb6b2cd3e38b217dAdam Cohen    // so as to achieve the desired transform
871b0aaac0b3abd777ed319341f95a8dfff23c79f4Adam Cohen    private static final float EXTRA_SCALE_FACTOR_0 = 0.972f;
88a985e598f6071f4caca15ba3cb6b2cd3e38b217dAdam Cohen    private static final float EXTRA_SCALE_FACTOR_1 = 1.0f;
891b0aaac0b3abd777ed319341f95a8dfff23c79f4Adam Cohen    private static final float EXTRA_SCALE_FACTOR_2 = 1.10f;
90a985e598f6071f4caca15ba3cb6b2cd3e38b217dAdam Cohen
9168d739365bf650fe7fecf99cd3bfe63a0d41bd12Adam Cohen    private static final int CHILDREN_OUTLINE_FADE_OUT_DELAY = 0;
9268d739365bf650fe7fecf99cd3bfe63a0d41bd12Adam Cohen    private static final int CHILDREN_OUTLINE_FADE_OUT_DURATION = 375;
939171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung    private static final int CHILDREN_OUTLINE_FADE_IN_DURATION = 100;
94f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen
95f135c6c364e92cddb84c1b4a94ed535214b712a6Winson Chung    private static final int BACKGROUND_FADE_OUT_DURATION = 350;
969171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung    private static final int BACKGROUND_FADE_IN_DURATION = 350;
979171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung
989171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung    // These animators are used to fade the children's outlines
999171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung    private ObjectAnimator mChildrenOutlineFadeInAnimation;
1009171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung    private ObjectAnimator mChildrenOutlineFadeOutAnimation;
1019171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung    private float mChildrenOutlineAlpha = 0;
1029171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung
1039171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung    // These properties refer to the background protection gradient used for AllApps and Customize
104e0f5a61a1f105216b0067124bacac69194c0ef70Michael Jurka    private ValueAnimator mBackgroundFadeInAnimation;
105e0f5a61a1f105216b0067124bacac69194c0ef70Michael Jurka    private ValueAnimator mBackgroundFadeOutAnimation;
1069171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung    private Drawable mBackground;
10725356e75ebae5d6e0be43f38d2c73b5cb59d05f2Michael Jurka    boolean mDrawBackground = true;
108f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen    private float mBackgroundAlpha = 0;
10968d739365bf650fe7fecf99cd3bfe63a0d41bd12Adam Cohen    private float mOverScrollMaxBackgroundAlpha = 0.0f;
110e0f66b546994a9bdee452851c17a148db02ec300Adam Cohen    private int mOverScrollPageIndex = -1;
111f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen
1128f573952b8729b4319043ae0908997ecd2d68951Dianne Hackborn    private final WallpaperManager mWallpaperManager;
1139c6fbed48783dacd9bc6b4ec5f2cc8e59ec7ee37Michael Jurka    private IBinder mWindowToken;
114aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung
1150142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka    private int mDefaultPage;
11631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
11731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    /**
11831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * CellInfo for the cell that is currently being dragged
11931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     */
12031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    private CellLayout.CellInfo mDragInfo;
121aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung
12270864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey    /**
12370864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey     * Target drop area calculated during last acceptDrop call.
12470864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey     */
125c0dcf597084d00e4c23a7fea5fd0738f6c095a6bAdam Cohen    private int[] mTargetCell = new int[2];
12631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
1276569f2c80e179c2f8ed73dae6b01d971ec20f005Patrick Dubroy    /**
1286569f2c80e179c2f8ed73dae6b01d971ec20f005Patrick Dubroy     * The CellLayout that is currently being dragged over
1296569f2c80e179c2f8ed73dae6b01d971ec20f005Patrick Dubroy     */
1306569f2c80e179c2f8ed73dae6b01d971ec20f005Patrick Dubroy    private CellLayout mDragTargetLayout = null;
1316569f2c80e179c2f8ed73dae6b01d971ec20f005Patrick Dubroy
13231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    private Launcher mLauncher;
1330589f0f66ce498512c6ee47482c649d88294c9d0Joe Onorato    private IconCache mIconCache;
13400acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato    private DragController mDragController;
135aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung
1364516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka    // These are temporary variables to prevent having to allocate a new object just to
1374516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka    // return an (x, y) value from helper functions. Do NOT use them to maintain other state.
13831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    private int[] mTempCell = new int[2];
13970864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey    private int[] mTempEstimate = new int[2];
140e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen    private float[] mDragViewVisualCenter = new float[2];
141a63c452f5bd491ba9b28c332ccedc6c6c7e2f3ccMichael Jurka    private float[] mTempDragCoordinates = new float[2];
1424516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka    private float[] mTempTouchCoordinates = 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)
155c0e8fcae492730210b2b8b6d5bb3d65636bad245Michael Jurka    private boolean mIsSmall = false;
156c0e8fcae492730210b2b8b6d5bb3d65636bad245Michael Jurka    private boolean mIsInUnshrinkAnimation = false;
157bea15195346bab3c52b0156e92f2b71f0811b210Michael Jurka    private AnimatorListener mShrinkAnimationListener;
158b8e14479da7209ca811a753b3256fe4a0b49a873Michael Jurka    private AnimatorListener mUnshrinkAnimationListener;
159f0ea4d3378be7b962c8e0bce2392df5e82491fb8Winson Chung    enum ShrinkState { SPRING_LOADED, MIDDLE, BOTTOM_HIDDEN, BOTTOM_VISIBLE };
160af91de06b99e2d5d41ce79fefa34ce2111e51917Michael Jurka    private ShrinkState mShrinkState;
161883f55b1d261862b0de1b43af0b17d351761a9c6Michael Jurka    private boolean mWaitingToShrink = false;
162af91de06b99e2d5d41ce79fefa34ce2111e51917Michael Jurka    private ShrinkState mWaitingToShrinkState;
1633c4c20fbe682cb4b3ef94f09afe0af09171583f3Michael Jurka    private AnimatorSet mAnimator;
164dee0589388ba0f6373912e18bf86243282fb3b9bMichael Jurka
16554fa3b95557c283976e8c1aa8a157b460b0b4513Patrick Dubroy    /** Is the user is dragging an item near the edge of a page? */
1661262e369484ce7f2565655ed80e6299232c70bd7Patrick Dubroy    private boolean mInScrollArea = false;
1671262e369484ce7f2565655ed80e6299232c70bd7Patrick Dubroy
1688e58e916061cbe2623697efac0924f2aa3753a92Patrick Dubroy    private final HolographicOutlineHelper mOutlineHelper = new HolographicOutlineHelper();
1694be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato    private Bitmap mDragOutline = null;
1708e58e916061cbe2623697efac0924f2aa3753a92Patrick Dubroy    private final Rect mTempRect = new Rect();
1718e58e916061cbe2623697efac0924f2aa3753a92Patrick Dubroy    private final int[] mTempXY = new int[2];
1724be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato
173a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung    // Paint used to draw external drop outline
174a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung    private final Paint mExternalDragOutlinePaint = new Paint();
175a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung
1766b879f0a5885274a85333531e091283405d490ccAdam Lesinski    // Camera and Matrix used to determine the final position of a neighboring CellLayout
1776b879f0a5885274a85333531e091283405d490ccAdam Lesinski    private final Matrix mMatrix = new Matrix();
1786b879f0a5885274a85333531e091283405d490ccAdam Lesinski    private final Camera mCamera = new Camera();
1796b879f0a5885274a85333531e091283405d490ccAdam Lesinski    private final float mTempFloat2[] = new float[2];
1806b879f0a5885274a85333531e091283405d490ccAdam Lesinski
181c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka    enum WallpaperVerticalOffset { TOP, MIDDLE, BOTTOM };
182c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka    int mWallpaperWidth;
183c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka    int mWallpaperHeight;
184ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka    WallpaperOffsetInterpolator mWallpaperOffset;
185c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka    boolean mUpdateWallpaperOffsetImmediately = false;
186ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka    boolean mSyncWallpaperOffsetWithScroll = true;
18726976d9b53161f80faf822d482ac771b8621cf31Adam Cohen    private Runnable mDelayedResizeRunnable;
188c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka
18919072da7441e07d5e90026d9e9e1b38f11245e44Adam Cohen    // Variables relating to the creation of user folders by hovering shortcuts over shortcuts
190c0dcf597084d00e4c23a7fea5fd0738f6c095a6bAdam Cohen    private static final int FOLDER_CREATION_TIMEOUT = 250;
19119072da7441e07d5e90026d9e9e1b38f11245e44Adam Cohen    private final Alarm mFolderCreationAlarm = new Alarm();
19219072da7441e07d5e90026d9e9e1b38f11245e44Adam Cohen    private FolderRingAnimator mDragFolderRingAnimator = null;
19319072da7441e07d5e90026d9e9e1b38f11245e44Adam Cohen    private View mLastDragOverView = null;
19419072da7441e07d5e90026d9e9e1b38f11245e44Adam Cohen    private boolean mCreateUserFolderOnDrop = false;
195073a46ff635d089cbcb15d939d1de42dd2b86c97Adam Cohen
196f8d2823d885ba682140aee1ae0504c1c5e67a24bAdam Cohen    // Variables relating to touch disambiguation (scrolling workspace vs. scrolling a widget)
197f8d2823d885ba682140aee1ae0504c1c5e67a24bAdam Cohen    private float mXDown;
198f8d2823d885ba682140aee1ae0504c1c5e67a24bAdam Cohen    private float mYDown;
199f8d2823d885ba682140aee1ae0504c1c5e67a24bAdam Cohen    final static float START_DAMPING_TOUCH_SLOP_ANGLE = (float) Math.PI / 6;
200f8d2823d885ba682140aee1ae0504c1c5e67a24bAdam Cohen    final static float MAX_SWIPE_ANGLE = (float) Math.PI / 3;
201f8d2823d885ba682140aee1ae0504c1c5e67a24bAdam Cohen    final static float TOUCH_SLOP_DAMPING_FACTOR = 4;
202f8d2823d885ba682140aee1ae0504c1c5e67a24bAdam Cohen
20331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    /**
20431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * Used to inflate the Workspace from XML.
20531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     *
20631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * @param context The application's context.
2070142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka     * @param attrs The attributes set containing the Workspace's customization values.
20831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     */
20931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    public Workspace(Context context, AttributeSet attrs) {
21031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        this(context, attrs, 0);
21131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
21231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
21331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    /**
21431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * Used to inflate the Workspace from XML.
21531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     *
21631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * @param context The application's context.
2170142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka     * @param attrs The attributes set containing the Workspace's customization values.
21831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * @param defStyle Unused.
21931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     */
22031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    public Workspace(Context context, AttributeSet attrs, int defStyle) {
22131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        super(context, attrs, defStyle);
2220142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka        mContentIsRefreshable = false;
2235f1c509d5ad1954a7e38e77db4d5f27c7345fd39Michael Jurka
224f0ea4d3378be7b962c8e0bce2392df5e82491fb8Winson Chung        // With workspace, data is available straight from the get-go
225f0ea4d3378be7b962c8e0bce2392df5e82491fb8Winson Chung        setDataIsReady();
226f0ea4d3378be7b962c8e0bce2392df5e82491fb8Winson Chung
227a2eb17095dcffa75c1e9681fdc318fe6e0564321Michael Jurka        if (!LauncherApplication.isScreenLarge()) {
2285f1c509d5ad1954a7e38e77db4d5f27c7345fd39Michael Jurka            mFadeInAdjacentScreens = false;
2295f1c509d5ad1954a7e38e77db4d5f27c7345fd39Michael Jurka        }
23031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
2318f573952b8729b4319043ae0908997ecd2d68951Dianne Hackborn        mWallpaperManager = WallpaperManager.getInstance(context);
232aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung
233f6440da9d02f3ee1553db4bd431a202eb1d1a9ddMichael Jurka        int cellCountX = DEFAULT_CELL_COUNT_X;
234f6440da9d02f3ee1553db4bd431a202eb1d1a9ddMichael Jurka        int cellCountY = DEFAULT_CELL_COUNT_Y;
235f6440da9d02f3ee1553db4bd431a202eb1d1a9ddMichael Jurka
236aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung        TypedArray a = context.obtainStyledAttributes(attrs,
237aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung                R.styleable.Workspace, defStyle, 0);
238f6440da9d02f3ee1553db4bd431a202eb1d1a9ddMichael Jurka
239b26f3d6a8c62e7c1a603b6c7979375d8dd4f20d4Winson Chung        final Resources res = context.getResources();
240f6440da9d02f3ee1553db4bd431a202eb1d1a9ddMichael Jurka        if (LauncherApplication.isScreenLarge()) {
241f61249b79948a4b37b38104cbe81c98086d1f30bMichael Jurka            // Determine number of rows/columns dynamically
242f61249b79948a4b37b38104cbe81c98086d1f30bMichael Jurka            // TODO: This code currently fails on tablets with an aspect ratio < 1.3.
243f61249b79948a4b37b38104cbe81c98086d1f30bMichael Jurka            // Around that ratio we should make cells the same size in portrait and
244f61249b79948a4b37b38104cbe81c98086d1f30bMichael Jurka            // landscape
245f6440da9d02f3ee1553db4bd431a202eb1d1a9ddMichael Jurka            TypedArray actionBarSizeTypedArray =
246f6440da9d02f3ee1553db4bd431a202eb1d1a9ddMichael Jurka                context.obtainStyledAttributes(new int[] { android.R.attr.actionBarSize });
247f61249b79948a4b37b38104cbe81c98086d1f30bMichael Jurka            final float actionBarHeight = actionBarSizeTypedArray.getDimension(0, 0f);
248f61249b79948a4b37b38104cbe81c98086d1f30bMichael Jurka            final float systemBarHeight = res.getDimension(R.dimen.status_bar_height);
249f61249b79948a4b37b38104cbe81c98086d1f30bMichael Jurka            final float smallestScreenDim = res.getConfiguration().smallestScreenWidthDp;
250f6440da9d02f3ee1553db4bd431a202eb1d1a9ddMichael Jurka
251f61249b79948a4b37b38104cbe81c98086d1f30bMichael Jurka            cellCountX = 1;
252f61249b79948a4b37b38104cbe81c98086d1f30bMichael Jurka            while (CellLayout.widthInPortrait(res, cellCountX + 1) <= smallestScreenDim) {
253f61249b79948a4b37b38104cbe81c98086d1f30bMichael Jurka                cellCountX++;
254f6440da9d02f3ee1553db4bd431a202eb1d1a9ddMichael Jurka            }
255f6440da9d02f3ee1553db4bd431a202eb1d1a9ddMichael Jurka
256f61249b79948a4b37b38104cbe81c98086d1f30bMichael Jurka            cellCountY = 1;
257f61249b79948a4b37b38104cbe81c98086d1f30bMichael Jurka            while (actionBarHeight + CellLayout.heightInLandscape(res, cellCountY + 1)
258f61249b79948a4b37b38104cbe81c98086d1f30bMichael Jurka                <= smallestScreenDim - systemBarHeight) {
259f61249b79948a4b37b38104cbe81c98086d1f30bMichael Jurka                cellCountY++;
260f6440da9d02f3ee1553db4bd431a202eb1d1a9ddMichael Jurka            }
261f6440da9d02f3ee1553db4bd431a202eb1d1a9ddMichael Jurka        }
262f6440da9d02f3ee1553db4bd431a202eb1d1a9ddMichael Jurka
263b26f3d6a8c62e7c1a603b6c7979375d8dd4f20d4Winson Chung        mSpringLoadedShrinkFactor =
264b26f3d6a8c62e7c1a603b6c7979375d8dd4f20d4Winson Chung            res.getInteger(R.integer.config_workspaceSpringLoadShrinkPercentage) / 100.0f;
265b26f3d6a8c62e7c1a603b6c7979375d8dd4f20d4Winson Chung
266f6440da9d02f3ee1553db4bd431a202eb1d1a9ddMichael Jurka        // if the value is manually specified, use that instead
267f6440da9d02f3ee1553db4bd431a202eb1d1a9ddMichael Jurka        cellCountX = a.getInt(R.styleable.Workspace_cellCountX, cellCountX);
268f6440da9d02f3ee1553db4bd431a202eb1d1a9ddMichael Jurka        cellCountY = a.getInt(R.styleable.Workspace_cellCountY, cellCountY);
2690142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka        mDefaultPage = a.getInt(R.styleable.Workspace_defaultScreen, 1);
27031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        a.recycle();
27131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
272d22015cd37ea6ef53762eca5be57daca123ff607Adam Cohen        LauncherModel.updateWorkspaceLayoutCells(cellCountX, cellCountY);
2730d44e9482b95d8f163b28bf20131c4349185b589Joe Onorato        setHapticFeedbackEnabled(false);
2740142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka
27531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        initWorkspace();
276c35afb2c9df8cc56c77bf21ce2eaa213f6f31251Winson Chung
277c35afb2c9df8cc56c77bf21ce2eaa213f6f31251Winson Chung        // Disable multitouch across the workspace/all apps/customize tray
278c35afb2c9df8cc56c77bf21ce2eaa213f6f31251Winson Chung        setMotionEventSplittingEnabled(true);
27931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
28031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
28131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    /**
28231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * Initializes various states for this workspace.
28331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     */
2840142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka    protected void initWorkspace() {
2850589f0f66ce498512c6ee47482c649d88294c9d0Joe Onorato        Context context = getContext();
2860142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka        mCurrentPage = mDefaultPage;
2870142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka        Launcher.setScreen(mCurrentPage);
2880589f0f66ce498512c6ee47482c649d88294c9d0Joe Onorato        LauncherApplication app = (LauncherApplication)context.getApplicationContext();
2890589f0f66ce498512c6ee47482c649d88294c9d0Joe Onorato        mIconCache = app.getIconCache();
290a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung        mExternalDragOutlinePaint.setAntiAlias(true);
291cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy        setWillNotDraw(false);
29231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
293b4b7fa7c0383b6af58d73d3e024b91d586148cf8Winson Chung        try {
294b4b7fa7c0383b6af58d73d3e024b91d586148cf8Winson Chung            final Resources res = getResources();
295fd3385fe9e0f034b04f99d5d59a58d74fe040da4Winson Chung            mBackground = res.getDrawable(R.drawable.apps_customize_bg);
296b4b7fa7c0383b6af58d73d3e024b91d586148cf8Winson Chung        } catch (Resources.NotFoundException e) {
297b4b7fa7c0383b6af58d73d3e024b91d586148cf8Winson Chung            // In this case, we will skip drawing background protection
298b4b7fa7c0383b6af58d73d3e024b91d586148cf8Winson Chung        }
2999171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung
3008edd75c8bb0729a10cb39f614183e3e9ae4288e8Michael Jurka        mUnshrinkAnimationListener = new AnimatorListenerAdapter() {
3013c4c20fbe682cb4b3ef94f09afe0af09171583f3Michael Jurka            @Override
302c0e8fcae492730210b2b8b6d5bb3d65636bad245Michael Jurka            public void onAnimationStart(Animator animation) {
303c0e8fcae492730210b2b8b6d5bb3d65636bad245Michael Jurka                mIsInUnshrinkAnimation = true;
304c0e8fcae492730210b2b8b6d5bb3d65636bad245Michael Jurka            }
3050bb8563b1381d92b0d7dbb5b0f814ad656c2f9bdMichael Jurka
3063c4c20fbe682cb4b3ef94f09afe0af09171583f3Michael Jurka            @Override
3078edd75c8bb0729a10cb39f614183e3e9ae4288e8Michael Jurka            public void onAnimationEnd(Animator animation) {
308c0e8fcae492730210b2b8b6d5bb3d65636bad245Michael Jurka                mIsInUnshrinkAnimation = false;
309ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka                mSyncWallpaperOffsetWithScroll = true;
310ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka                mWallpaperOffset.setOverrideHorizontalCatchupConstant(false);
31160b7c53ccc6384b65aaca77d97794e8f09e8cfc8Patrick Dubroy                mAnimator = null;
312ce7e05fbe8abd5f25ec47e0e05b5cc76ceb39d2eMichael Jurka                enableChildrenLayers(false);
313bea15195346bab3c52b0156e92f2b71f0811b210Michael Jurka            }
314bea15195346bab3c52b0156e92f2b71f0811b210Michael Jurka        };
315bea15195346bab3c52b0156e92f2b71f0811b210Michael Jurka        mShrinkAnimationListener = new AnimatorListenerAdapter() {
316bea15195346bab3c52b0156e92f2b71f0811b210Michael Jurka            @Override
317ce7e05fbe8abd5f25ec47e0e05b5cc76ceb39d2eMichael Jurka            public void onAnimationStart(Animator animation) {
318ce7e05fbe8abd5f25ec47e0e05b5cc76ceb39d2eMichael Jurka                enableChildrenLayers(true);
319ce7e05fbe8abd5f25ec47e0e05b5cc76ceb39d2eMichael Jurka            }
320ce7e05fbe8abd5f25ec47e0e05b5cc76ceb39d2eMichael Jurka            @Override
321bea15195346bab3c52b0156e92f2b71f0811b210Michael Jurka            public void onAnimationEnd(Animator animation) {
322ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka                mWallpaperOffset.setOverrideHorizontalCatchupConstant(false);
32360b7c53ccc6384b65aaca77d97794e8f09e8cfc8Patrick Dubroy                mAnimator = null;
324dee0589388ba0f6373912e18bf86243282fb3b9bMichael Jurka            }
325dee0589388ba0f6373912e18bf86243282fb3b9bMichael Jurka        };
3260142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka        mSnapVelocity = 600;
327ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        mWallpaperOffset = new WallpaperOffsetInterpolator();
32831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
32931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
33031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    @Override
331f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen    protected int getScrollMode() {
332b26f3d6a8c62e7c1a603b6c7979375d8dd4f20d4Winson Chung        return SmoothPagedView.X_LARGE_MODE;
333f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen    }
334f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen
335e5fb0f27bca7afb996258a7163c76ca7390d7bffMichael Jurka    private void onAddView(View child) {
33631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        if (!(child instanceof CellLayout)) {
33731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            throw new IllegalArgumentException("A Workspace can only have CellLayout children.");
33831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
3392801cafe62653131fdc9da402e5c44e5ffd0bf47Adam Cohen        CellLayout cl = ((CellLayout) child);
3402801cafe62653131fdc9da402e5c44e5ffd0bf47Adam Cohen        cl.setOnInterceptTouchListener(this);
3412801cafe62653131fdc9da402e5c44e5ffd0bf47Adam Cohen        cl.setClickable(true);
3422801cafe62653131fdc9da402e5c44e5ffd0bf47Adam Cohen        cl.enableHardwareLayers();
343e5fb0f27bca7afb996258a7163c76ca7390d7bffMichael Jurka    }
3442801cafe62653131fdc9da402e5c44e5ffd0bf47Adam Cohen
345e5fb0f27bca7afb996258a7163c76ca7390d7bffMichael Jurka    @Override
346e5fb0f27bca7afb996258a7163c76ca7390d7bffMichael Jurka    public void addView(View child, int index, LayoutParams params) {
347e5fb0f27bca7afb996258a7163c76ca7390d7bffMichael Jurka        onAddView(child);
34831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        super.addView(child, index, params);
34931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
35031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
35131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    @Override
35231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    public void addView(View child) {
353e5fb0f27bca7afb996258a7163c76ca7390d7bffMichael Jurka        onAddView(child);
35431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        super.addView(child);
35531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
35631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
35731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    @Override
35831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    public void addView(View child, int index) {
359e5fb0f27bca7afb996258a7163c76ca7390d7bffMichael Jurka        onAddView(child);
36031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        super.addView(child, index);
36131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
36231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
36331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    @Override
36431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    public void addView(View child, int width, int height) {
365e5fb0f27bca7afb996258a7163c76ca7390d7bffMichael Jurka        onAddView(child);
36631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        super.addView(child, width, height);
36731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
36831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
36931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    @Override
37031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    public void addView(View child, LayoutParams params) {
371e5fb0f27bca7afb996258a7163c76ca7390d7bffMichael Jurka        onAddView(child);
37231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        super.addView(child, params);
37331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
37431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
37531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    /**
37631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * @return The open folder on the current screen, or null if there is none
37731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     */
37831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    Folder getOpenFolder() {
379716b51e030f9c6ed34af2b947760e46a280c65a6Adam Cohen        DragLayer dragLayer = mLauncher.getDragLayer();
3808e776a62c5cc60737f5cdbbeacfec5f958112fa7Adam Cohen        int count = dragLayer.getChildCount();
38131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        for (int i = 0; i < count; i++) {
3828e776a62c5cc60737f5cdbbeacfec5f958112fa7Adam Cohen            View child = dragLayer.getChildAt(i);
383aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung            if (child instanceof Folder) {
384aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung                Folder folder = (Folder) child;
385aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung                if (folder.getInfo().opened)
386aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung                    return folder;
38731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            }
38831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
38931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        return null;
39031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
39131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
392a0aa0121b91fde17e427ab2763ce312e64cf5d33Patrick Dubroy    boolean isTouchActive() {
393a0aa0121b91fde17e427ab2763ce312e64cf5d33Patrick Dubroy        return mTouchState != TOUCH_STATE_REST;
39431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
39531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
39631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    /**
39731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * Adds the specified child in the specified screen. The position and dimension of
39831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * the child are defined by x, y, spanX and spanY.
39931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     *
40031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * @param child The child to add in one of the workspace's screens.
40131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * @param screen The screen in which to add the child.
40231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * @param x The X position of the child in the screen's grid.
40331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * @param y The Y position of the child in the screen's grid.
40431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * @param spanX The number of cells spanned horizontally by the child.
40531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * @param spanY The number of cells spanned vertically by the child.
40631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     */
40731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    void addInScreen(View child, int screen, int x, int y, int spanX, int spanY) {
40831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        addInScreen(child, screen, x, y, spanX, spanY, false);
40931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
41031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
411aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung    void addInFullScreen(View child, int screen) {
412aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung        addInScreen(child, screen, 0, 0, -1, -1);
413aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung    }
414aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung
41531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    /**
41631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * Adds the specified child in the specified screen. The position and dimension of
41731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * the child are defined by x, y, spanX and spanY.
41831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     *
41931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * @param child The child to add in one of the workspace's screens.
42031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * @param screen The screen in which to add the child.
42131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * @param x The X position of the child in the screen's grid.
42231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * @param y The Y position of the child in the screen's grid.
42331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * @param spanX The number of cells spanned horizontally by the child.
42431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * @param spanY The number of cells spanned vertically by the child.
42531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * @param insert When true, the child is inserted at the beginning of the children list.
42631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     */
42731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    void addInScreen(View child, int screen, int x, int y, int spanX, int spanY, boolean insert) {
42831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        if (screen < 0 || screen >= getChildCount()) {
429291ad12232c98e383d44d76ffe09e97e204c61bcDaniel Sandler            Log.e(TAG, "The screen must be >= 0 and < " + getChildCount()
430291ad12232c98e383d44d76ffe09e97e204c61bcDaniel Sandler                + " (was " + screen + "); skipping child");
431291ad12232c98e383d44d76ffe09e97e204c61bcDaniel Sandler            return;
43231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
43331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
43431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        final CellLayout group = (CellLayout) getChildAt(screen);
43531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        CellLayout.LayoutParams lp = (CellLayout.LayoutParams) child.getLayoutParams();
43631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        if (lp == null) {
43731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            lp = new CellLayout.LayoutParams(x, y, spanX, spanY);
43831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        } else {
43931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            lp.cellX = x;
44031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            lp.cellY = y;
44131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            lp.cellHSpan = spanX;
44231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            lp.cellVSpan = spanY;
44331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
444aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung
4457f4eabe3709a72b416569136e4a095431c493c8bAdam Cohen        if (spanX < 0 && spanY < 0) {
4467f4eabe3709a72b416569136e4a095431c493c8bAdam Cohen            lp.isLockedToGrid = false;
4477f4eabe3709a72b416569136e4a095431c493c8bAdam Cohen        }
4487f4eabe3709a72b416569136e4a095431c493c8bAdam Cohen
4496569f2c80e179c2f8ed73dae6b01d971ec20f005Patrick Dubroy        // Get the canonical child id to uniquely represent this view in this screen
450845ba3b17b83a2b11d79c6fb076cf96ab4a737dfMichael Jurka        int childId = LauncherModel.getCellLayoutChildId(-1, screen, x, y, spanX, spanY);
451f3ca3ab6958b104cbf2c2fa04add97d372a94d1cMichael Jurka        boolean markCellsAsOccupied = !(child instanceof Folder);
452f3ca3ab6958b104cbf2c2fa04add97d372a94d1cMichael Jurka        if (!group.addViewToCellLayout(child, insert ? 0 : -1, childId, lp, markCellsAsOccupied)) {
453aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung            // TODO: This branch occurs when the workspace is adding views
454aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung            // outside of the defined grid
4556569f2c80e179c2f8ed73dae6b01d971ec20f005Patrick Dubroy            // maybe we should be deleting these items from the LauncherModel?
456aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung            Log.w(TAG, "Failed to add to item at (" + lp.cellX + "," + lp.cellY + ") to CellLayout");
457aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung        }
458aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung
45931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        if (!(child instanceof Folder)) {
4600d44e9482b95d8f163b28bf20131c4349185b589Joe Onorato            child.setHapticFeedbackEnabled(false);
46131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            child.setOnLongClickListener(mLongClickListener);
46231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
46300acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato        if (child instanceof DropTarget) {
464aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung            mDragController.addDropTarget((DropTarget) child);
46500acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato        }
46631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
46731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
468d0ce1ec2e21ce3bb0ba3549a01d1d06b440a8e45Patrick Dubroy    /**
469d0ce1ec2e21ce3bb0ba3549a01d1d06b440a8e45Patrick Dubroy     * Check if the point (x, y) hits a given page.
470d0ce1ec2e21ce3bb0ba3549a01d1d06b440a8e45Patrick Dubroy     */
471d0ce1ec2e21ce3bb0ba3549a01d1d06b440a8e45Patrick Dubroy    private boolean hitsPage(int index, float x, float y) {
472d0ce1ec2e21ce3bb0ba3549a01d1d06b440a8e45Patrick Dubroy        final View page = getChildAt(index);
473d0ce1ec2e21ce3bb0ba3549a01d1d06b440a8e45Patrick Dubroy        if (page != null) {
474d0ce1ec2e21ce3bb0ba3549a01d1d06b440a8e45Patrick Dubroy            float[] localXY = { x, y };
475d0ce1ec2e21ce3bb0ba3549a01d1d06b440a8e45Patrick Dubroy            mapPointFromSelfToChild(page, localXY);
476d0ce1ec2e21ce3bb0ba3549a01d1d06b440a8e45Patrick Dubroy            return (localXY[0] >= 0 && localXY[0] < page.getWidth()
477d0ce1ec2e21ce3bb0ba3549a01d1d06b440a8e45Patrick Dubroy                    && localXY[1] >= 0 && localXY[1] < page.getHeight());
478d0ce1ec2e21ce3bb0ba3549a01d1d06b440a8e45Patrick Dubroy        }
479d0ce1ec2e21ce3bb0ba3549a01d1d06b440a8e45Patrick Dubroy        return false;
480d0ce1ec2e21ce3bb0ba3549a01d1d06b440a8e45Patrick Dubroy    }
481d0ce1ec2e21ce3bb0ba3549a01d1d06b440a8e45Patrick Dubroy
482d0ce1ec2e21ce3bb0ba3549a01d1d06b440a8e45Patrick Dubroy    @Override
483d0ce1ec2e21ce3bb0ba3549a01d1d06b440a8e45Patrick Dubroy    protected boolean hitsPreviousPage(float x, float y) {
484d0ce1ec2e21ce3bb0ba3549a01d1d06b440a8e45Patrick Dubroy        // mNextPage is set to INVALID_PAGE whenever we are stationary.
485d0ce1ec2e21ce3bb0ba3549a01d1d06b440a8e45Patrick Dubroy        // Calculating "next page" this way ensures that you scroll to whatever page you tap on
486d0ce1ec2e21ce3bb0ba3549a01d1d06b440a8e45Patrick Dubroy        final int current = (mNextPage == INVALID_PAGE) ? mCurrentPage : mNextPage;
487d0ce1ec2e21ce3bb0ba3549a01d1d06b440a8e45Patrick Dubroy        return hitsPage(current - 1, x, y);
488d0ce1ec2e21ce3bb0ba3549a01d1d06b440a8e45Patrick Dubroy    }
489d0ce1ec2e21ce3bb0ba3549a01d1d06b440a8e45Patrick Dubroy
490d0ce1ec2e21ce3bb0ba3549a01d1d06b440a8e45Patrick Dubroy    @Override
491d0ce1ec2e21ce3bb0ba3549a01d1d06b440a8e45Patrick Dubroy    protected boolean hitsNextPage(float x, float y) {
492d0ce1ec2e21ce3bb0ba3549a01d1d06b440a8e45Patrick Dubroy        // mNextPage is set to INVALID_PAGE whenever we are stationary.
493d0ce1ec2e21ce3bb0ba3549a01d1d06b440a8e45Patrick Dubroy        // Calculating "next page" this way ensures that you scroll to whatever page you tap on
494d0ce1ec2e21ce3bb0ba3549a01d1d06b440a8e45Patrick Dubroy        final int current = (mNextPage == INVALID_PAGE) ? mCurrentPage : mNextPage;
495d0ce1ec2e21ce3bb0ba3549a01d1d06b440a8e45Patrick Dubroy        return hitsPage(current + 1, x, y);
496d0ce1ec2e21ce3bb0ba3549a01d1d06b440a8e45Patrick Dubroy    }
497d0ce1ec2e21ce3bb0ba3549a01d1d06b440a8e45Patrick Dubroy
498e708c5249b26978057acb9370cbfb8f6f747f5b8Patrick Dubroy    /**
499e708c5249b26978057acb9370cbfb8f6f747f5b8Patrick Dubroy     * Called directly from a CellLayout (not by the framework), after we've been added as a
500e708c5249b26978057acb9370cbfb8f6f747f5b8Patrick Dubroy     * listener via setOnInterceptTouchEventListener(). This allows us to tell the CellLayout
501e708c5249b26978057acb9370cbfb8f6f747f5b8Patrick Dubroy     * that it should intercept touch events, which is not something that is normally supported.
502e708c5249b26978057acb9370cbfb8f6f747f5b8Patrick Dubroy     */
503e708c5249b26978057acb9370cbfb8f6f747f5b8Patrick Dubroy    @Override
504dee0589388ba0f6373912e18bf86243282fb3b9bMichael Jurka    public boolean onTouch(View v, MotionEvent event) {
505e708c5249b26978057acb9370cbfb8f6f747f5b8Patrick Dubroy        return (mIsSmall || mIsInUnshrinkAnimation);
506e708c5249b26978057acb9370cbfb8f6f747f5b8Patrick Dubroy    }
507e708c5249b26978057acb9370cbfb8f6f747f5b8Patrick Dubroy
508ded9f8d8658d0b6601006c0a954cd3bf530e55c1Adam Cohen    protected void onWindowVisibilityChanged (int visibility) {
509ded9f8d8658d0b6601006c0a954cd3bf530e55c1Adam Cohen        mLauncher.onWindowVisibilityChanged(visibility);
510ded9f8d8658d0b6601006c0a954cd3bf530e55c1Adam Cohen    }
511ded9f8d8658d0b6601006c0a954cd3bf530e55c1Adam Cohen
5125f1c509d5ad1954a7e38e77db4d5f27c7345fd39Michael Jurka    @Override
5135f1c509d5ad1954a7e38e77db4d5f27c7345fd39Michael Jurka    public boolean dispatchUnhandledMove(View focused, int direction) {
514c0e8fcae492730210b2b8b6d5bb3d65636bad245Michael Jurka        if (mIsSmall || mIsInUnshrinkAnimation) {
5155f1c509d5ad1954a7e38e77db4d5f27c7345fd39Michael Jurka            // when the home screens are shrunken, shouldn't allow side-scrolling
5165f1c509d5ad1954a7e38e77db4d5f27c7345fd39Michael Jurka            return false;
5175f1c509d5ad1954a7e38e77db4d5f27c7345fd39Michael Jurka        }
5185f1c509d5ad1954a7e38e77db4d5f27c7345fd39Michael Jurka        return super.dispatchUnhandledMove(focused, direction);
5195f1c509d5ad1954a7e38e77db4d5f27c7345fd39Michael Jurka    }
5205f1c509d5ad1954a7e38e77db4d5f27c7345fd39Michael Jurka
5215f1c509d5ad1954a7e38e77db4d5f27c7345fd39Michael Jurka    @Override
5225f1c509d5ad1954a7e38e77db4d5f27c7345fd39Michael Jurka    public boolean onInterceptTouchEvent(MotionEvent ev) {
523f8d2823d885ba682140aee1ae0504c1c5e67a24bAdam Cohen        if (ev.getAction() == MotionEvent.ACTION_DOWN) {
524f8d2823d885ba682140aee1ae0504c1c5e67a24bAdam Cohen            mXDown = ev.getX();
525f8d2823d885ba682140aee1ae0504c1c5e67a24bAdam Cohen            mYDown = ev.getY();
526f8d2823d885ba682140aee1ae0504c1c5e67a24bAdam Cohen        }
527f8d2823d885ba682140aee1ae0504c1c5e67a24bAdam Cohen
5285f1c509d5ad1954a7e38e77db4d5f27c7345fd39Michael Jurka        return super.onInterceptTouchEvent(ev);
5295f1c509d5ad1954a7e38e77db4d5f27c7345fd39Michael Jurka    }
5305f1c509d5ad1954a7e38e77db4d5f27c7345fd39Michael Jurka
5311adf5391a3a3d215b226adf3702019c22a99e3b1Michael Jurka    @Override
5321adf5391a3a3d215b226adf3702019c22a99e3b1Michael Jurka    protected void determineScrollingStart(MotionEvent ev) {
53369c42da4d30f1cbba5fe1ac8960b4e305e14b807Adam Cohen        if (!mIsSmall && !mIsInUnshrinkAnimation) {
53469c42da4d30f1cbba5fe1ac8960b4e305e14b807Adam Cohen            float deltaX = Math.abs(ev.getX() - mXDown);
53569c42da4d30f1cbba5fe1ac8960b4e305e14b807Adam Cohen            float deltaY = Math.abs(ev.getY() - mYDown);
536f8d2823d885ba682140aee1ae0504c1c5e67a24bAdam Cohen
53769c42da4d30f1cbba5fe1ac8960b4e305e14b807Adam Cohen            if (Float.compare(deltaX, 0f) == 0) return;
538f8d2823d885ba682140aee1ae0504c1c5e67a24bAdam Cohen
53969c42da4d30f1cbba5fe1ac8960b4e305e14b807Adam Cohen            float slope = deltaY / deltaX;
54069c42da4d30f1cbba5fe1ac8960b4e305e14b807Adam Cohen            float theta = (float) Math.atan(slope);
541f8d2823d885ba682140aee1ae0504c1c5e67a24bAdam Cohen
54269c42da4d30f1cbba5fe1ac8960b4e305e14b807Adam Cohen            if (deltaX > mTouchSlop || deltaY > mTouchSlop) {
54369c42da4d30f1cbba5fe1ac8960b4e305e14b807Adam Cohen                cancelCurrentPageLongPress();
54469c42da4d30f1cbba5fe1ac8960b4e305e14b807Adam Cohen            }
545f8d2823d885ba682140aee1ae0504c1c5e67a24bAdam Cohen
54669c42da4d30f1cbba5fe1ac8960b4e305e14b807Adam Cohen            if (theta > MAX_SWIPE_ANGLE) {
54769c42da4d30f1cbba5fe1ac8960b4e305e14b807Adam Cohen                // Above MAX_SWIPE_ANGLE, we don't want to ever start scrolling the workspace
54869c42da4d30f1cbba5fe1ac8960b4e305e14b807Adam Cohen                return;
54969c42da4d30f1cbba5fe1ac8960b4e305e14b807Adam Cohen            } else if (theta > START_DAMPING_TOUCH_SLOP_ANGLE) {
55069c42da4d30f1cbba5fe1ac8960b4e305e14b807Adam Cohen                // Above START_DAMPING_TOUCH_SLOP_ANGLE and below MAX_SWIPE_ANGLE, we want to
55169c42da4d30f1cbba5fe1ac8960b4e305e14b807Adam Cohen                // increase the touch slop to make it harder to begin scrolling the workspace. This
55269c42da4d30f1cbba5fe1ac8960b4e305e14b807Adam Cohen                // results in vertically scrolling widgets to more easily. The higher the angle, the
55369c42da4d30f1cbba5fe1ac8960b4e305e14b807Adam Cohen                // more we increase touch slop.
55469c42da4d30f1cbba5fe1ac8960b4e305e14b807Adam Cohen                theta -= START_DAMPING_TOUCH_SLOP_ANGLE;
55569c42da4d30f1cbba5fe1ac8960b4e305e14b807Adam Cohen                float extraRatio = (float)
55669c42da4d30f1cbba5fe1ac8960b4e305e14b807Adam Cohen                        Math.sqrt((theta / (MAX_SWIPE_ANGLE - START_DAMPING_TOUCH_SLOP_ANGLE)));
55769c42da4d30f1cbba5fe1ac8960b4e305e14b807Adam Cohen                super.determineScrollingStart(ev, 1 + TOUCH_SLOP_DAMPING_FACTOR * extraRatio);
55869c42da4d30f1cbba5fe1ac8960b4e305e14b807Adam Cohen            } else {
55969c42da4d30f1cbba5fe1ac8960b4e305e14b807Adam Cohen                // Below START_DAMPING_TOUCH_SLOP_ANGLE, we don't do anything special
56069c42da4d30f1cbba5fe1ac8960b4e305e14b807Adam Cohen                super.determineScrollingStart(ev);
56169c42da4d30f1cbba5fe1ac8960b4e305e14b807Adam Cohen            }
562f8d2823d885ba682140aee1ae0504c1c5e67a24bAdam Cohen        }
5631adf5391a3a3d215b226adf3702019c22a99e3b1Michael Jurka    }
5641adf5391a3a3d215b226adf3702019c22a99e3b1Michael Jurka
565007c69867d821ea2b271398577a8b3440b3a7046Winson Chung    @Override
566007c69867d821ea2b271398577a8b3440b3a7046Winson Chung    protected boolean isScrollingIndicatorEnabled() {
567007c69867d821ea2b271398577a8b3440b3a7046Winson Chung        return mShrinkState != ShrinkState.SPRING_LOADED;
568007c69867d821ea2b271398577a8b3440b3a7046Winson Chung    }
569007c69867d821ea2b271398577a8b3440b3a7046Winson Chung
5701262e369484ce7f2565655ed80e6299232c70bd7Patrick Dubroy    protected void onPageBeginMoving() {
571007c69867d821ea2b271398577a8b3440b3a7046Winson Chung        super.onPageBeginMoving();
572007c69867d821ea2b271398577a8b3440b3a7046Winson Chung
5730142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka        if (mNextPage != INVALID_PAGE) {
5740142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka            // we're snapping to a particular screen
57516fed41e5e680c547b23e108788eb85f1b04d36dMichael Jurka            enableChildrenCache(mCurrentPage, mNextPage);
5760142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka        } else {
5770142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka            // this is when user is actively dragging a particular screen, they might
5780142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka            // swipe it either left or right (but we won't advance by more than one screen)
57916fed41e5e680c547b23e108788eb85f1b04d36dMichael Jurka            enableChildrenCache(mCurrentPage - 1, mCurrentPage + 1);
58031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
581007c69867d821ea2b271398577a8b3440b3a7046Winson Chung
582007c69867d821ea2b271398577a8b3440b3a7046Winson Chung        // Only show page outlines as we pan if we are on large screen
583007c69867d821ea2b271398577a8b3440b3a7046Winson Chung        if (LauncherApplication.isScreenLarge()) {
584007c69867d821ea2b271398577a8b3440b3a7046Winson Chung            showOutlines();
585007c69867d821ea2b271398577a8b3440b3a7046Winson Chung        }
58631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
58731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
5881262e369484ce7f2565655ed80e6299232c70bd7Patrick Dubroy    protected void onPageEndMoving() {
589007c69867d821ea2b271398577a8b3440b3a7046Winson Chung        super.onPageEndMoving();
590007c69867d821ea2b271398577a8b3440b3a7046Winson Chung
59116fed41e5e680c547b23e108788eb85f1b04d36dMichael Jurka        clearChildrenCache();
5921262e369484ce7f2565655ed80e6299232c70bd7Patrick Dubroy        // Hide the outlines, as long as we're not dragging
5931262e369484ce7f2565655ed80e6299232c70bd7Patrick Dubroy        if (!mDragController.dragging()) {
594007c69867d821ea2b271398577a8b3440b3a7046Winson Chung            // Only hide page outlines as we pan if we are on large screen
595007c69867d821ea2b271398577a8b3440b3a7046Winson Chung            if (LauncherApplication.isScreenLarge()) {
596007c69867d821ea2b271398577a8b3440b3a7046Winson Chung                hideOutlines();
597007c69867d821ea2b271398577a8b3440b3a7046Winson Chung            }
5981262e369484ce7f2565655ed80e6299232c70bd7Patrick Dubroy        }
59968d739365bf650fe7fecf99cd3bfe63a0d41bd12Adam Cohen        mOverScrollMaxBackgroundAlpha = 0.0f;
600e0f66b546994a9bdee452851c17a148db02ec300Adam Cohen        mOverScrollPageIndex = -1;
60126976d9b53161f80faf822d482ac771b8621cf31Adam Cohen
60226976d9b53161f80faf822d482ac771b8621cf31Adam Cohen        if (mDelayedResizeRunnable != null) {
60326976d9b53161f80faf822d482ac771b8621cf31Adam Cohen            mDelayedResizeRunnable.run();
60426976d9b53161f80faf822d482ac771b8621cf31Adam Cohen            mDelayedResizeRunnable = null;
60526976d9b53161f80faf822d482ac771b8621cf31Adam Cohen        }
6060142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka    }
6070142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka
6080142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka    @Override
6090142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka    protected void notifyPageSwitchListener() {
6100142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka        super.notifyPageSwitchListener();
6110142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka        Launcher.setScreen(mCurrentPage);
6120142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka    };
6130142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka
614c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka    // As a ratio of screen height, the total distance we want the parallax effect to span
615c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka    // vertically
616c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka    private float wallpaperTravelToScreenHeightRatio(int width, int height) {
617c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka        return 1.1f;
618c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka    }
619c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka
620c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka    // As a ratio of screen height, the total distance we want the parallax effect to span
621c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka    // horizontally
622c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka    private float wallpaperTravelToScreenWidthRatio(int width, int height) {
623c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka        float aspectRatio = width / (float) height;
624c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka
625c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka        // At an aspect ratio of 16/10, the wallpaper parallax effect should span 1.5 * screen width
626c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka        // At an aspect ratio of 10/16, the wallpaper parallax effect should span 1.2 * screen width
627c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka        // We will use these two data points to extrapolate how much the wallpaper parallax effect
628c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka        // to span (ie travel) at any aspect ratio:
629c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka
630c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka        final float ASPECT_RATIO_LANDSCAPE = 16/10f;
631c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka        final float ASPECT_RATIO_PORTRAIT = 10/16f;
632c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka        final float WALLPAPER_WIDTH_TO_SCREEN_RATIO_LANDSCAPE = 1.5f;
633c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka        final float WALLPAPER_WIDTH_TO_SCREEN_RATIO_PORTRAIT = 1.2f;
634c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka
635c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka        // To find out the desired width at different aspect ratios, we use the following two
636c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka        // formulas, where the coefficient on x is the aspect ratio (width/height):
637c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka        //   (16/10)x + y = 1.5
638c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka        //   (10/16)x + y = 1.2
639c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka        // We solve for x and y and end up with a final formula:
640c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka        final float x =
641c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka            (WALLPAPER_WIDTH_TO_SCREEN_RATIO_LANDSCAPE - WALLPAPER_WIDTH_TO_SCREEN_RATIO_PORTRAIT) /
642c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka            (ASPECT_RATIO_LANDSCAPE - ASPECT_RATIO_PORTRAIT);
643c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka        final float y = WALLPAPER_WIDTH_TO_SCREEN_RATIO_PORTRAIT - x * ASPECT_RATIO_PORTRAIT;
644c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka        return x * aspectRatio + y;
645c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka    }
646c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka
647c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka    // The range of scroll values for Workspace
648c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka    private int getScrollRange() {
649c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka        return getChildOffset(getChildCount() - 1) - getChildOffset(0);
650c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka    }
651c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka
652c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka    protected void setWallpaperDimension() {
653c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka        Display display = mLauncher.getWindowManager().getDefaultDisplay();
654201bc828d5a0078f505e8e37152156a0cb43c10aWinson Chung        DisplayMetrics displayMetrics = new DisplayMetrics();
655201bc828d5a0078f505e8e37152156a0cb43c10aWinson Chung        display.getRealMetrics(displayMetrics);
656201bc828d5a0078f505e8e37152156a0cb43c10aWinson Chung        final int maxDim = Math.max(displayMetrics.widthPixels, displayMetrics.heightPixels);
657201bc828d5a0078f505e8e37152156a0cb43c10aWinson Chung        final int minDim = Math.min(displayMetrics.widthPixels, displayMetrics.heightPixels);
658c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka
659c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka        // We need to ensure that there is enough extra space in the wallpaper for the intended
660c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka        // parallax effects
661c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka        mWallpaperWidth = (int) (maxDim * wallpaperTravelToScreenWidthRatio(maxDim, minDim));
662c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka        mWallpaperHeight = (int)(maxDim * wallpaperTravelToScreenHeightRatio(maxDim, minDim));
663f7640c8bba304ba99c99afcd7393893eccc9a0d9Winson Chung        new Thread("setWallpaperDimension") {
664f7640c8bba304ba99c99afcd7393893eccc9a0d9Winson Chung            public void run() {
665f7640c8bba304ba99c99afcd7393893eccc9a0d9Winson Chung                mWallpaperManager.suggestDesiredDimensions(mWallpaperWidth, mWallpaperHeight);
666f7640c8bba304ba99c99afcd7393893eccc9a0d9Winson Chung            }
667f7640c8bba304ba99c99afcd7393893eccc9a0d9Winson Chung        }.start();
668c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka    }
669c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka
670ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka    public void setVerticalWallpaperOffset(float offset) {
671ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        mWallpaperOffset.setFinalY(offset);
672ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka    }
673ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka    public float getVerticalWallpaperOffset() {
674ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        return mWallpaperOffset.getCurrY();
675ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka    }
676ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka    public void setHorizontalWallpaperOffset(float offset) {
677ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        mWallpaperOffset.setFinalX(offset);
678ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka    }
679ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka    public float getHorizontalWallpaperOffset() {
680ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        return mWallpaperOffset.getCurrX();
681c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka    }
682c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka
683ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka    private float wallpaperOffsetForCurrentScroll() {
684ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        Display display = mLauncher.getWindowManager().getDefaultDisplay();
685f70c78142457b0e9c691f2a20ed87407c7433f5bMichael Jurka        final boolean isStaticWallpaper = (mWallpaperManager.getWallpaperInfo() == null);
686ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        // The wallpaper travel width is how far, from left to right, the wallpaper will move
687ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        // at this orientation (for example, in portrait mode we don't move all the way to the
688ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        // edges of the wallpaper, or otherwise the parallax effect would be too strong)
689ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        int wallpaperTravelWidth = (int) (display.getWidth() *
690ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka                wallpaperTravelToScreenWidthRatio(display.getWidth(), display.getHeight()));
691f70c78142457b0e9c691f2a20ed87407c7433f5bMichael Jurka        if (!isStaticWallpaper) {
692f70c78142457b0e9c691f2a20ed87407c7433f5bMichael Jurka            wallpaperTravelWidth = mWallpaperWidth;
693f70c78142457b0e9c691f2a20ed87407c7433f5bMichael Jurka        }
694ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka
695ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        // Set wallpaper offset steps (1 / (number of screens - 1))
696ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        // We have 3 vertical offset states (centered, and then top/bottom aligned
697ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        // for all apps/customize)
698ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        mWallpaperManager.setWallpaperOffsetSteps(1.0f / (getChildCount() - 1), 1.0f / (3 - 1));
699ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka
70009d6eb0f3fb1d81ea59881e6c65512d09d573cc1Michael Jurka        int scrollRange = getScrollRange();
70109d6eb0f3fb1d81ea59881e6c65512d09d573cc1Michael Jurka        float scrollProgressOffset = 0;
70209d6eb0f3fb1d81ea59881e6c65512d09d573cc1Michael Jurka
70309d6eb0f3fb1d81ea59881e6c65512d09d573cc1Michael Jurka        // Account for overscroll: you only see the absolute edge of the wallpaper if
70409d6eb0f3fb1d81ea59881e6c65512d09d573cc1Michael Jurka        // you overscroll as far as you can in landscape mode. Only do this for static wallpapers
70509d6eb0f3fb1d81ea59881e6c65512d09d573cc1Michael Jurka        // because live wallpapers (and probably 3rd party wallpaper providers) rely on the offset
70609d6eb0f3fb1d81ea59881e6c65512d09d573cc1Michael Jurka        // being even intervals from 0 to 1 (eg [0, 0.25, 0.5, 0.75, 1])
70709d6eb0f3fb1d81ea59881e6c65512d09d573cc1Michael Jurka        if (isStaticWallpaper) {
70809d6eb0f3fb1d81ea59881e6c65512d09d573cc1Michael Jurka            int overscrollOffset = (int) (maxOverScroll() * display.getWidth());
70909d6eb0f3fb1d81ea59881e6c65512d09d573cc1Michael Jurka            scrollProgressOffset += overscrollOffset / (float) getScrollRange();
71009d6eb0f3fb1d81ea59881e6c65512d09d573cc1Michael Jurka            scrollRange += 2 * overscrollOffset;
71109d6eb0f3fb1d81ea59881e6c65512d09d573cc1Michael Jurka        }
71209d6eb0f3fb1d81ea59881e6c65512d09d573cc1Michael Jurka
713ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        float scrollProgress =
71409d6eb0f3fb1d81ea59881e6c65512d09d573cc1Michael Jurka            mScrollX / (float) scrollRange + scrollProgressOffset;
715ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        float offsetInDips = wallpaperTravelWidth * scrollProgress +
716f70c78142457b0e9c691f2a20ed87407c7433f5bMichael Jurka            (mWallpaperWidth - wallpaperTravelWidth) / 2; // center it
717ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        float offset = offsetInDips / (float) mWallpaperWidth;
718ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        return offset;
719ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka    }
720ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka    private void syncWallpaperOffsetWithScroll() {
721b46a2d130b3d04df830402d579060b63db559ae3Winson Chung        final boolean enableWallpaperEffects = isHardwareAccelerated();
722b46a2d130b3d04df830402d579060b63db559ae3Winson Chung        if (enableWallpaperEffects) {
723ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            mWallpaperOffset.setFinalX(wallpaperOffsetForCurrentScroll());
724c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka        }
725c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka    }
726c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka
727c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka    public void updateWallpaperOffsetImmediately() {
728c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka        mUpdateWallpaperOffsetImmediately = true;
729c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka    }
730c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka
731ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka    private void updateWallpaperOffsets() {
732ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        boolean updateNow = false;
733ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        boolean keepUpdating = true;
734ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        if (mUpdateWallpaperOffsetImmediately) {
735ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            updateNow = true;
736ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            keepUpdating = false;
737ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            mWallpaperOffset.jumpToFinal();
738ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            mUpdateWallpaperOffsetImmediately = false;
739c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka        } else {
740ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            updateNow = keepUpdating = mWallpaperOffset.computeScrollOffset();
741ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        }
742ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        if (updateNow) {
7439c6fbed48783dacd9bc6b4ec5f2cc8e59ec7ee37Michael Jurka            if (mWindowToken != null) {
7449c6fbed48783dacd9bc6b4ec5f2cc8e59ec7ee37Michael Jurka                mWallpaperManager.setWallpaperOffsets(mWindowToken,
745ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka                        mWallpaperOffset.getCurrX(), mWallpaperOffset.getCurrY());
746ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            }
747ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        }
748ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        if (keepUpdating) {
7492763be3150d429d338b9848286e9365b4052c100Michael Jurka            fastInvalidate();
750956091ba7863bd72086275e61084864994dd6fa7Joe Onorato        }
751ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka    }
752ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka
753ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka    class WallpaperOffsetInterpolator {
754ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        float mFinalHorizontalWallpaperOffset = 0.0f;
755ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        float mFinalVerticalWallpaperOffset = 0.5f;
756ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        float mHorizontalWallpaperOffset = 0.0f;
757ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        float mVerticalWallpaperOffset = 0.5f;
758ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        long mLastWallpaperOffsetUpdateTime;
759ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka        boolean mIsMovingFast;
760ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka        boolean mOverrideHorizontalCatchupConstant;
761ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka        float mHorizontalCatchupConstant = 0.35f;
762ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka        float mVerticalCatchupConstant = 0.35f;
763ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka
764ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        public WallpaperOffsetInterpolator() {
765ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        }
766ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka
767ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka        public void setOverrideHorizontalCatchupConstant(boolean override) {
768ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka            mOverrideHorizontalCatchupConstant = override;
769ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka        }
770ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka
771ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka        public void setHorizontalCatchupConstant(float f) {
772ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka            mHorizontalCatchupConstant = f;
773ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka        }
774ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka
775ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka        public void setVerticalCatchupConstant(float f) {
776ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka            mVerticalCatchupConstant = f;
777ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka        }
778ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka
779ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        public boolean computeScrollOffset() {
780ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            if (Float.compare(mHorizontalWallpaperOffset, mFinalHorizontalWallpaperOffset) == 0 &&
781ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka                    Float.compare(mVerticalWallpaperOffset, mFinalVerticalWallpaperOffset) == 0) {
782ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka                mIsMovingFast = false;
783ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka                return false;
784ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            }
785ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            Display display = mLauncher.getWindowManager().getDefaultDisplay();
786ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            boolean isLandscape = display.getWidth() > display.getHeight();
787ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka
788ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            long currentTime = System.currentTimeMillis();
789ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            long timeSinceLastUpdate = currentTime - mLastWallpaperOffsetUpdateTime;
790ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            timeSinceLastUpdate = Math.min((long) (1000/30f), timeSinceLastUpdate);
791ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            timeSinceLastUpdate = Math.max(1L, timeSinceLastUpdate);
792ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka
793ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka            float xdiff = Math.abs(mFinalHorizontalWallpaperOffset - mHorizontalWallpaperOffset);
794ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka            if (!mIsMovingFast && xdiff > 0.07) {
795ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka                mIsMovingFast = true;
796ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka            }
797ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka
798ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka            float fractionToCatchUpIn1MsHorizontal;
799ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka            if (mOverrideHorizontalCatchupConstant) {
800ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka                fractionToCatchUpIn1MsHorizontal = mHorizontalCatchupConstant;
801ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka            } else if (mIsMovingFast) {
802ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka                fractionToCatchUpIn1MsHorizontal = isLandscape ? 0.5f : 0.75f;
803ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka            } else {
804ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka                // slow
805ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka                fractionToCatchUpIn1MsHorizontal = isLandscape ? 0.27f : 0.5f;
806ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka            }
807ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka            float fractionToCatchUpIn1MsVertical = mVerticalCatchupConstant;
808ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka
809ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka            fractionToCatchUpIn1MsHorizontal /= 33f;
810ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka            fractionToCatchUpIn1MsVertical /= 33f;
811ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka
812ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            final float UPDATE_THRESHOLD = 0.00001f;
813ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            float hOffsetDelta = mFinalHorizontalWallpaperOffset - mHorizontalWallpaperOffset;
814ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            float vOffsetDelta = mFinalVerticalWallpaperOffset - mVerticalWallpaperOffset;
815ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka            boolean jumpToFinalValue = Math.abs(hOffsetDelta) < UPDATE_THRESHOLD &&
816ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka                Math.abs(vOffsetDelta) < UPDATE_THRESHOLD;
817ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            if (jumpToFinalValue) {
818ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka                mHorizontalWallpaperOffset = mFinalHorizontalWallpaperOffset;
819ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka                mVerticalWallpaperOffset = mFinalVerticalWallpaperOffset;
820ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            } else {
821ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka                float percentToCatchUpVertical =
822ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka                    Math.min(1.0f, timeSinceLastUpdate * fractionToCatchUpIn1MsVertical);
823ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka                float percentToCatchUpHorizontal =
824ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka                    Math.min(1.0f, timeSinceLastUpdate * fractionToCatchUpIn1MsHorizontal);
825ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka                mHorizontalWallpaperOffset += percentToCatchUpHorizontal * hOffsetDelta;
826ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka                mVerticalWallpaperOffset += percentToCatchUpVertical * vOffsetDelta;
827ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            }
828ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka
829ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            mLastWallpaperOffsetUpdateTime = System.currentTimeMillis();
830ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            return true;
831ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        }
832ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka
833ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        public float getCurrX() {
834ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            return mHorizontalWallpaperOffset;
835ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        }
836ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka
837ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        public float getFinalX() {
838ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            return mFinalHorizontalWallpaperOffset;
839ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        }
840ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka
841ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        public float getCurrY() {
842ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            return mVerticalWallpaperOffset;
843ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        }
844ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka
845ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        public float getFinalY() {
846ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            return mFinalVerticalWallpaperOffset;
847ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        }
848ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka
849ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        public void setFinalX(float x) {
850ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            mFinalHorizontalWallpaperOffset = Math.max(0f, Math.min(x, 1.0f));
851ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        }
852ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka
853ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        public void setFinalY(float y) {
854ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            mFinalVerticalWallpaperOffset = Math.max(0f, Math.min(y, 1.0f));
855ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        }
856ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka
857ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        public void jumpToFinal() {
858ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            mHorizontalWallpaperOffset = mFinalHorizontalWallpaperOffset;
859ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            mVerticalWallpaperOffset = mFinalVerticalWallpaperOffset;
860ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        }
8618f573952b8729b4319043ae0908997ecd2d68951Dianne Hackborn    }
862aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung
863340c5f3a708efa280a120708594247952ca65182Michael Jurka    @Override
864340c5f3a708efa280a120708594247952ca65182Michael Jurka    public void computeScroll() {
865340c5f3a708efa280a120708594247952ca65182Michael Jurka        super.computeScroll();
866ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        if (mSyncWallpaperOffsetWithScroll) {
867ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            syncWallpaperOffsetWithScroll();
868ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        }
869340c5f3a708efa280a120708594247952ca65182Michael Jurka    }
870340c5f3a708efa280a120708594247952ca65182Michael Jurka
87194f78a5c44c08b258f59b2c78ff6694e5eaca827Patrick Dubroy    void showOutlines() {
8723e7c7634531302271270c8cf418abc959d621cbcMichael Jurka        if (!mIsSmall && !mIsInUnshrinkAnimation) {
8739171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung            if (mChildrenOutlineFadeOutAnimation != null) mChildrenOutlineFadeOutAnimation.cancel();
8749171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung            if (mChildrenOutlineFadeInAnimation != null) mChildrenOutlineFadeInAnimation.cancel();
8759171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung            mChildrenOutlineFadeInAnimation = ObjectAnimator.ofFloat(this, "childrenOutlineAlpha", 1.0f);
8769171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung            mChildrenOutlineFadeInAnimation.setDuration(CHILDREN_OUTLINE_FADE_IN_DURATION);
8779171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung            mChildrenOutlineFadeInAnimation.start();
8783e7c7634531302271270c8cf418abc959d621cbcMichael Jurka        }
879f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen    }
880f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen
88194f78a5c44c08b258f59b2c78ff6694e5eaca827Patrick Dubroy    void hideOutlines() {
8823e7c7634531302271270c8cf418abc959d621cbcMichael Jurka        if (!mIsSmall && !mIsInUnshrinkAnimation) {
8839171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung            if (mChildrenOutlineFadeInAnimation != null) mChildrenOutlineFadeInAnimation.cancel();
8849171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung            if (mChildrenOutlineFadeOutAnimation != null) mChildrenOutlineFadeOutAnimation.cancel();
8859171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung            mChildrenOutlineFadeOutAnimation = ObjectAnimator.ofFloat(this, "childrenOutlineAlpha", 0.0f);
8869171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung            mChildrenOutlineFadeOutAnimation.setDuration(CHILDREN_OUTLINE_FADE_OUT_DURATION);
8879171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung            mChildrenOutlineFadeOutAnimation.setStartDelay(CHILDREN_OUTLINE_FADE_OUT_DELAY);
8889171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung            mChildrenOutlineFadeOutAnimation.start();
8893e7c7634531302271270c8cf418abc959d621cbcMichael Jurka        }
890f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen    }
891f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen
89294f78a5c44c08b258f59b2c78ff6694e5eaca827Patrick Dubroy    public void showOutlinesTemporarily() {
89394f78a5c44c08b258f59b2c78ff6694e5eaca827Patrick Dubroy        if (!mIsPageMoving && !isTouchActive()) {
89494f78a5c44c08b258f59b2c78ff6694e5eaca827Patrick Dubroy            snapToPage(mCurrentPage);
89594f78a5c44c08b258f59b2c78ff6694e5eaca827Patrick Dubroy        }
89694f78a5c44c08b258f59b2c78ff6694e5eaca827Patrick Dubroy    }
89794f78a5c44c08b258f59b2c78ff6694e5eaca827Patrick Dubroy
8989171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung    public void setChildrenOutlineAlpha(float alpha) {
8999171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung        mChildrenOutlineAlpha = alpha;
900f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen        for (int i = 0; i < getChildCount(); i++) {
901f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen            CellLayout cl = (CellLayout) getChildAt(i);
902f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen            cl.setBackgroundAlpha(alpha);
903f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen        }
904f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen    }
905f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen
9069171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung    public float getChildrenOutlineAlpha() {
9079171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung        return mChildrenOutlineAlpha;
9089171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung    }
9099171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung
9109c6fbed48783dacd9bc6b4ec5f2cc8e59ec7ee37Michael Jurka    void disableBackground() {
9119c6fbed48783dacd9bc6b4ec5f2cc8e59ec7ee37Michael Jurka        mDrawBackground = false;
9129c6fbed48783dacd9bc6b4ec5f2cc8e59ec7ee37Michael Jurka    }
9139c6fbed48783dacd9bc6b4ec5f2cc8e59ec7ee37Michael Jurka    void enableBackground() {
9149c6fbed48783dacd9bc6b4ec5f2cc8e59ec7ee37Michael Jurka        mDrawBackground = true;
9159c6fbed48783dacd9bc6b4ec5f2cc8e59ec7ee37Michael Jurka    }
9169c6fbed48783dacd9bc6b4ec5f2cc8e59ec7ee37Michael Jurka
917760e5375f003accf04f789e90a919ed476d4c335Winson Chung    private void showBackgroundGradientForAllApps() {
918760e5375f003accf04f789e90a919ed476d4c335Winson Chung        showBackgroundGradient();
9198d006d5e144ae33e509ea42e0b9760ef6c5bc884Winson Chung    }
9208d006d5e144ae33e509ea42e0b9760ef6c5bc884Winson Chung
9218d006d5e144ae33e509ea42e0b9760ef6c5bc884Winson Chung    private void showBackgroundGradient() {
922b4b7fa7c0383b6af58d73d3e024b91d586148cf8Winson Chung        if (mBackground == null) return;
9239171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung        if (mBackgroundFadeOutAnimation != null) mBackgroundFadeOutAnimation.cancel();
9249171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung        if (mBackgroundFadeInAnimation != null) mBackgroundFadeInAnimation.cancel();
925e0f5a61a1f105216b0067124bacac69194c0ef70Michael Jurka        mBackgroundFadeInAnimation = ValueAnimator.ofFloat(getBackgroundAlpha(), 1f);
926e0f5a61a1f105216b0067124bacac69194c0ef70Michael Jurka        mBackgroundFadeInAnimation.addUpdateListener(new AnimatorUpdateListener() {
927e0f5a61a1f105216b0067124bacac69194c0ef70Michael Jurka            public void onAnimationUpdate(ValueAnimator animation) {
928e0f5a61a1f105216b0067124bacac69194c0ef70Michael Jurka                setBackgroundAlpha(((Float) animation.getAnimatedValue()).floatValue());
929e0f5a61a1f105216b0067124bacac69194c0ef70Michael Jurka            }
930e0f5a61a1f105216b0067124bacac69194c0ef70Michael Jurka        });
931f135c6c364e92cddb84c1b4a94ed535214b712a6Winson Chung        mBackgroundFadeInAnimation.setInterpolator(new DecelerateInterpolator(1.5f));
9329171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung        mBackgroundFadeInAnimation.setDuration(BACKGROUND_FADE_IN_DURATION);
9339171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung        mBackgroundFadeInAnimation.start();
9349171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung    }
9359171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung
936557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung    private void hideBackgroundGradient(float finalAlpha) {
937b4b7fa7c0383b6af58d73d3e024b91d586148cf8Winson Chung        if (mBackground == null) return;
9389171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung        if (mBackgroundFadeInAnimation != null) mBackgroundFadeInAnimation.cancel();
9399171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung        if (mBackgroundFadeOutAnimation != null) mBackgroundFadeOutAnimation.cancel();
940557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung        mBackgroundFadeOutAnimation = ValueAnimator.ofFloat(getBackgroundAlpha(), finalAlpha);
941e0f5a61a1f105216b0067124bacac69194c0ef70Michael Jurka        mBackgroundFadeOutAnimation.addUpdateListener(new AnimatorUpdateListener() {
942e0f5a61a1f105216b0067124bacac69194c0ef70Michael Jurka            public void onAnimationUpdate(ValueAnimator animation) {
943e0f5a61a1f105216b0067124bacac69194c0ef70Michael Jurka                setBackgroundAlpha(((Float) animation.getAnimatedValue()).floatValue());
944e0f5a61a1f105216b0067124bacac69194c0ef70Michael Jurka            }
945e0f5a61a1f105216b0067124bacac69194c0ef70Michael Jurka        });
946f135c6c364e92cddb84c1b4a94ed535214b712a6Winson Chung        mBackgroundFadeOutAnimation.setInterpolator(new DecelerateInterpolator(1.5f));
9479171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung        mBackgroundFadeOutAnimation.setDuration(BACKGROUND_FADE_OUT_DURATION);
9489171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung        mBackgroundFadeOutAnimation.start();
9499171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung    }
9509171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung
9519171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung    public void setBackgroundAlpha(float alpha) {
9529c6fbed48783dacd9bc6b4ec5f2cc8e59ec7ee37Michael Jurka        if (alpha != mBackgroundAlpha) {
9539c6fbed48783dacd9bc6b4ec5f2cc8e59ec7ee37Michael Jurka            mBackgroundAlpha = alpha;
9549c6fbed48783dacd9bc6b4ec5f2cc8e59ec7ee37Michael Jurka            invalidate();
9559c6fbed48783dacd9bc6b4ec5f2cc8e59ec7ee37Michael Jurka        }
9569171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung    }
9579171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung
958f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen    public float getBackgroundAlpha() {
959f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen        return mBackgroundAlpha;
960f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen    }
961f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen
9626b879f0a5885274a85333531e091283405d490ccAdam Lesinski    /**
9636b879f0a5885274a85333531e091283405d490ccAdam Lesinski     * Due to 3D transformations, if two CellLayouts are theoretically touching each other,
9646b879f0a5885274a85333531e091283405d490ccAdam Lesinski     * on the xy plane, when one is rotated along the y-axis, the gap between them is perceived
9656b879f0a5885274a85333531e091283405d490ccAdam Lesinski     * as being larger. This method computes what offset the rotated view should be translated
9666b879f0a5885274a85333531e091283405d490ccAdam Lesinski     * in order to minimize this perceived gap.
9676b879f0a5885274a85333531e091283405d490ccAdam Lesinski     * @param degrees Angle of the view
9686b879f0a5885274a85333531e091283405d490ccAdam Lesinski     * @param width Width of the view
9696b879f0a5885274a85333531e091283405d490ccAdam Lesinski     * @param height Height of the view
9706b879f0a5885274a85333531e091283405d490ccAdam Lesinski     * @return Offset to be used in a View.setTranslationX() call
9716b879f0a5885274a85333531e091283405d490ccAdam Lesinski     */
9726b879f0a5885274a85333531e091283405d490ccAdam Lesinski    private float getOffsetXForRotation(float degrees, int width, int height) {
9736b879f0a5885274a85333531e091283405d490ccAdam Lesinski        mMatrix.reset();
9746b879f0a5885274a85333531e091283405d490ccAdam Lesinski        mCamera.save();
9756b879f0a5885274a85333531e091283405d490ccAdam Lesinski        mCamera.rotateY(Math.abs(degrees));
9766b879f0a5885274a85333531e091283405d490ccAdam Lesinski        mCamera.getMatrix(mMatrix);
9776b879f0a5885274a85333531e091283405d490ccAdam Lesinski        mCamera.restore();
9786b879f0a5885274a85333531e091283405d490ccAdam Lesinski
9796b879f0a5885274a85333531e091283405d490ccAdam Lesinski        mMatrix.preTranslate(-width * 0.5f, -height * 0.5f);
9806b879f0a5885274a85333531e091283405d490ccAdam Lesinski        mMatrix.postTranslate(width * 0.5f, height * 0.5f);
9816b879f0a5885274a85333531e091283405d490ccAdam Lesinski        mTempFloat2[0] = width;
9826b879f0a5885274a85333531e091283405d490ccAdam Lesinski        mTempFloat2[1] = height;
9836b879f0a5885274a85333531e091283405d490ccAdam Lesinski        mMatrix.mapPoints(mTempFloat2);
9846b879f0a5885274a85333531e091283405d490ccAdam Lesinski        return (width - mTempFloat2[0]) * (degrees > 0.0f ? 1.0f : -1.0f);
9856b879f0a5885274a85333531e091283405d490ccAdam Lesinski    }
9866b879f0a5885274a85333531e091283405d490ccAdam Lesinski
98768d739365bf650fe7fecf99cd3bfe63a0d41bd12Adam Cohen    float backgroundAlphaInterpolator(float r) {
98868d739365bf650fe7fecf99cd3bfe63a0d41bd12Adam Cohen        float pivotA = 0.1f;
98968d739365bf650fe7fecf99cd3bfe63a0d41bd12Adam Cohen        float pivotB = 0.4f;
99068d739365bf650fe7fecf99cd3bfe63a0d41bd12Adam Cohen        if (r < pivotA) {
99168d739365bf650fe7fecf99cd3bfe63a0d41bd12Adam Cohen            return 0;
99268d739365bf650fe7fecf99cd3bfe63a0d41bd12Adam Cohen        } else if (r > pivotB) {
99368d739365bf650fe7fecf99cd3bfe63a0d41bd12Adam Cohen            return 1.0f;
99468d739365bf650fe7fecf99cd3bfe63a0d41bd12Adam Cohen        } else {
99568d739365bf650fe7fecf99cd3bfe63a0d41bd12Adam Cohen            return (r - pivotA)/(pivotB - pivotA);
99668d739365bf650fe7fecf99cd3bfe63a0d41bd12Adam Cohen        }
99768d739365bf650fe7fecf99cd3bfe63a0d41bd12Adam Cohen    }
99868d739365bf650fe7fecf99cd3bfe63a0d41bd12Adam Cohen
99968d739365bf650fe7fecf99cd3bfe63a0d41bd12Adam Cohen    float overScrollBackgroundAlphaInterpolator(float r) {
1000e0f66b546994a9bdee452851c17a148db02ec300Adam Cohen        float threshold = 0.08f;
100168d739365bf650fe7fecf99cd3bfe63a0d41bd12Adam Cohen
100268d739365bf650fe7fecf99cd3bfe63a0d41bd12Adam Cohen        if (r > mOverScrollMaxBackgroundAlpha) {
100368d739365bf650fe7fecf99cd3bfe63a0d41bd12Adam Cohen            mOverScrollMaxBackgroundAlpha = r;
100468d739365bf650fe7fecf99cd3bfe63a0d41bd12Adam Cohen        } else if (r < mOverScrollMaxBackgroundAlpha) {
100568d739365bf650fe7fecf99cd3bfe63a0d41bd12Adam Cohen            r = mOverScrollMaxBackgroundAlpha;
100668d739365bf650fe7fecf99cd3bfe63a0d41bd12Adam Cohen        }
100768d739365bf650fe7fecf99cd3bfe63a0d41bd12Adam Cohen
100868d739365bf650fe7fecf99cd3bfe63a0d41bd12Adam Cohen        return Math.min(r / threshold, 1.0f);
100968d739365bf650fe7fecf99cd3bfe63a0d41bd12Adam Cohen    }
101068d739365bf650fe7fecf99cd3bfe63a0d41bd12Adam Cohen
1011f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen    @Override
1012f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen    protected void screenScrolled(int screenCenter) {
1013007c69867d821ea2b271398577a8b3440b3a7046Winson Chung        super.screenScrolled(screenCenter);
1014007c69867d821ea2b271398577a8b3440b3a7046Winson Chung
1015c3bc26031cc5b36328bd7cdbcf04ff269dea11a5Adam Cohen        // If the screen is not xlarge, then don't rotate the CellLayouts
1016785d2eb2b8d7072c8124300dd9168ff51a91cf38Winson Chung        // NOTE: If we don't update the side pages alpha, then we should not hide the side pages.
1017785d2eb2b8d7072c8124300dd9168ff51a91cf38Winson Chung        //       see unshrink().
1018a2eb17095dcffa75c1e9681fdc318fe6e0564321Michael Jurka        if (!LauncherApplication.isScreenLarge()) return;
1019c3bc26031cc5b36328bd7cdbcf04ff269dea11a5Adam Cohen
102021f12b52a54d2658ed14fcf7bb1ca17a198f62beAdam Cohen        final int halfScreenSize = getMeasuredWidth() / 2;
102168d739365bf650fe7fecf99cd3bfe63a0d41bd12Adam Cohen
102221f12b52a54d2658ed14fcf7bb1ca17a198f62beAdam Cohen        for (int i = 0; i < getChildCount(); i++) {
10231b0aaac0b3abd777ed319341f95a8dfff23c79f4Adam Cohen            CellLayout cl = (CellLayout) getChildAt(i);
10241b0aaac0b3abd777ed319341f95a8dfff23c79f4Adam Cohen            if (cl != null) {
1025d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka                int totalDistance = getScaledMeasuredWidth(cl) + mPageSpacing;
102621f12b52a54d2658ed14fcf7bb1ca17a198f62beAdam Cohen                int delta = screenCenter - (getChildOffset(i) -
102721f12b52a54d2658ed14fcf7bb1ca17a198f62beAdam Cohen                        getRelativeChildOffset(i) + halfScreenSize);
1028f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen
1029ddb821981e0919bbd3b4c9a2b6aa1811d6c86bb6Adam Cohen                float scrollProgress = delta / (totalDistance * 1.0f);
103021f12b52a54d2658ed14fcf7bb1ca17a198f62beAdam Cohen                scrollProgress = Math.min(scrollProgress, 1.0f);
103121f12b52a54d2658ed14fcf7bb1ca17a198f62beAdam Cohen                scrollProgress = Math.max(scrollProgress, -1.0f);
1032f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen
1033e0f66b546994a9bdee452851c17a148db02ec300Adam Cohen                // If the current page (i) is being overscrolled, we use a different
1034e0f66b546994a9bdee452851c17a148db02ec300Adam Cohen                // set of rules for setting the background alpha multiplier.
1035e0f66b546994a9bdee452851c17a148db02ec300Adam Cohen                if ((mScrollX < 0 && i == 0) || (mScrollX > mMaxScrollX &&
1036e0f66b546994a9bdee452851c17a148db02ec300Adam Cohen                        i == getChildCount() -1 )) {
1037e0f66b546994a9bdee452851c17a148db02ec300Adam Cohen                    cl.setBackgroundAlphaMultiplier(
1038e0f66b546994a9bdee452851c17a148db02ec300Adam Cohen                            overScrollBackgroundAlphaInterpolator(Math.abs(scrollProgress)));
1039e0f66b546994a9bdee452851c17a148db02ec300Adam Cohen                    mOverScrollPageIndex = i;
1040e0f66b546994a9bdee452851c17a148db02ec300Adam Cohen                } else if (mOverScrollPageIndex != i) {
1041e0f66b546994a9bdee452851c17a148db02ec300Adam Cohen                    cl.setBackgroundAlphaMultiplier(
1042e0f66b546994a9bdee452851c17a148db02ec300Adam Cohen                            backgroundAlphaInterpolator(Math.abs(scrollProgress)));
1043e0f66b546994a9bdee452851c17a148db02ec300Adam Cohen                }
10441b0aaac0b3abd777ed319341f95a8dfff23c79f4Adam Cohen
104521f12b52a54d2658ed14fcf7bb1ca17a198f62beAdam Cohen                float rotation = WORKSPACE_ROTATION * scrollProgress;
10466b879f0a5885274a85333531e091283405d490ccAdam Lesinski                float translationX = getOffsetXForRotation(rotation, cl.getWidth(), cl.getHeight());
10476b879f0a5885274a85333531e091283405d490ccAdam Lesinski                cl.setTranslationX(translationX);
104868d739365bf650fe7fecf99cd3bfe63a0d41bd12Adam Cohen
10491b0aaac0b3abd777ed319341f95a8dfff23c79f4Adam Cohen                cl.setRotationY(rotation);
1050f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen            }
1051f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen        }
1052f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen    }
1053f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen
105400acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato    protected void onAttachedToWindow() {
105500acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato        super.onAttachedToWindow();
10569c6fbed48783dacd9bc6b4ec5f2cc8e59ec7ee37Michael Jurka        mWindowToken = getWindowToken();
1057956091ba7863bd72086275e61084864994dd6fa7Joe Onorato        computeScroll();
10589c6fbed48783dacd9bc6b4ec5f2cc8e59ec7ee37Michael Jurka        mDragController.setWindowToken(mWindowToken);
10599c6fbed48783dacd9bc6b4ec5f2cc8e59ec7ee37Michael Jurka    }
10609c6fbed48783dacd9bc6b4ec5f2cc8e59ec7ee37Michael Jurka
10619c6fbed48783dacd9bc6b4ec5f2cc8e59ec7ee37Michael Jurka    protected void onDetachedFromWindow() {
10629c6fbed48783dacd9bc6b4ec5f2cc8e59ec7ee37Michael Jurka        mWindowToken = null;
106300acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato    }
106400acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato
106531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    @Override
106628750fba6a2d141eb9a1e566718c17236030b815Michael Jurka    protected void onLayout(boolean changed, int left, int top, int right, int bottom) {
1067c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka        if (mFirstLayout && mCurrentPage >= 0 && mCurrentPage < getChildCount()) {
1068c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka            mUpdateWallpaperOffsetImmediately = true;
1069c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka        }
10700142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka        super.onLayout(changed, left, top, right, bottom);
1071aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung
107279212d81361d1ad8c941c48f8323eb526643ca68Michael Jurka        // if shrinkToBottom() is called on initialization, it has to be deferred
107379212d81361d1ad8c941c48f8323eb526643ca68Michael Jurka        // until after the first call to onLayout so that it has the correct width
1074883f55b1d261862b0de1b43af0b17d351761a9c6Michael Jurka        if (mWaitingToShrink) {
1075696a67969d657d38eff33996633f08da0e21841fAdam Cohen            // shrink can trigger a synchronous onLayout call, so we
1076696a67969d657d38eff33996633f08da0e21841fAdam Cohen            // post this to avoid a stack overflow / tangled onLayout calls
1077696a67969d657d38eff33996633f08da0e21841fAdam Cohen            post(new Runnable() {
1078696a67969d657d38eff33996633f08da0e21841fAdam Cohen                public void run() {
1079696a67969d657d38eff33996633f08da0e21841fAdam Cohen                    shrink(mWaitingToShrinkState, false);
1080696a67969d657d38eff33996633f08da0e21841fAdam Cohen                    mWaitingToShrink = false;
1081696a67969d657d38eff33996633f08da0e21841fAdam Cohen                }
1082696a67969d657d38eff33996633f08da0e21841fAdam Cohen            });
108379212d81361d1ad8c941c48f8323eb526643ca68Michael Jurka        }
108431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
108531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
108631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    @Override
10879171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung    protected void onDraw(Canvas canvas) {
1088ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        updateWallpaperOffsets();
1089c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka
10909171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung        // Draw the background gradient if necessary
10919c6fbed48783dacd9bc6b4ec5f2cc8e59ec7ee37Michael Jurka        if (mBackground != null && mBackgroundAlpha > 0.0f && mDrawBackground) {
10928d006d5e144ae33e509ea42e0b9760ef6c5bc884Winson Chung            int alpha = (int) (mBackgroundAlpha * 255);
1093f0ea4d3378be7b962c8e0bce2392df5e82491fb8Winson Chung            mBackground.setAlpha(alpha);
1094f0ea4d3378be7b962c8e0bce2392df5e82491fb8Winson Chung            mBackground.setBounds(mScrollX, 0, mScrollX + getMeasuredWidth(),
1095f0ea4d3378be7b962c8e0bce2392df5e82491fb8Winson Chung                    getMeasuredHeight());
1096f0ea4d3378be7b962c8e0bce2392df5e82491fb8Winson Chung            mBackground.draw(canvas);
10979171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung        }
1098073a46ff635d089cbcb15d939d1de42dd2b86c97Adam Cohen
10999171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung        super.onDraw(canvas);
11009171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung    }
11019171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung
11029171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung    @Override
11030142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka    protected void dispatchDraw(Canvas canvas) {
1104557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung        super.dispatchDraw(canvas);
1105557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung
1106557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung        if (mInScrollArea && !LauncherApplication.isScreenLarge()) {
1107557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung            final int width = getWidth();
1108557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung            final int height = getHeight();
1109557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung            final int pageHeight = getChildAt(0).getHeight();
1110557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung
1111557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung            // This determines the height of the glowing edge: 90% of the page height
1112557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung            final int padding = (int) ((height - pageHeight) * 0.5f + pageHeight * 0.1f);
1113557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung
1114557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung            final CellLayout leftPage = (CellLayout) getChildAt(mCurrentPage - 1);
1115557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung            final CellLayout rightPage = (CellLayout) getChildAt(mCurrentPage + 1);
1116557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung
1117557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung            if (leftPage != null && leftPage.getIsDragOverlapping()) {
1118557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung                final Drawable d = getResources().getDrawable(R.drawable.page_hover_left_holo);
1119557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung                d.setBounds(mScrollX, padding, mScrollX + d.getIntrinsicWidth(), height - padding);
1120557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung                d.draw(canvas);
1121557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung            } else if (rightPage != null && rightPage.getIsDragOverlapping()) {
1122557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung                final Drawable d = getResources().getDrawable(R.drawable.page_hover_right_holo);
1123557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung                d.setBounds(mScrollX + width - d.getIntrinsicWidth(), padding, mScrollX + width, height - padding);
1124557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung                d.draw(canvas);
11250207c522472d7252f146f4d39efa456ca5248c6bPatrick Dubroy            }
112631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
112731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
112831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
112931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    @Override
113031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    protected boolean onRequestFocusInDescendants(int direction, Rect previouslyFocusedRect) {
1131678862186af4ea70d9b4012c9bc127e7fea5e607Joe Onorato        if (!mLauncher.isAllAppsVisible()) {
113231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            final Folder openFolder = getOpenFolder();
113331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            if (openFolder != null) {
113431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                return openFolder.requestFocus(direction, previouslyFocusedRect);
113531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            } else {
11360142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka                return super.onRequestFocusInDescendants(direction, previouslyFocusedRect);
113731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            }
113831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
113931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        return false;
114031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
114131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
114231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    @Override
114397d85d23b013347bead4e2f5fa430a79ce69431eWinson Chung    public int getDescendantFocusability() {
114497d85d23b013347bead4e2f5fa430a79ce69431eWinson Chung        if (mIsSmall) {
114597d85d23b013347bead4e2f5fa430a79ce69431eWinson Chung            return ViewGroup.FOCUS_BLOCK_DESCENDANTS;
114697d85d23b013347bead4e2f5fa430a79ce69431eWinson Chung        }
114797d85d23b013347bead4e2f5fa430a79ce69431eWinson Chung        return super.getDescendantFocusability();
114897d85d23b013347bead4e2f5fa430a79ce69431eWinson Chung    }
114997d85d23b013347bead4e2f5fa430a79ce69431eWinson Chung
115097d85d23b013347bead4e2f5fa430a79ce69431eWinson Chung    @Override
1151c2e24c0a37ddeab930f731c062705d435e477f75Romain Guy    public void addFocusables(ArrayList<View> views, int direction, int focusableMode) {
1152678862186af4ea70d9b4012c9bc127e7fea5e607Joe Onorato        if (!mLauncher.isAllAppsVisible()) {
115331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            final Folder openFolder = getOpenFolder();
11540142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka            if (openFolder != null) {
115531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                openFolder.addFocusables(views, direction);
11560142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka            } else {
11570142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka                super.addFocusables(views, direction, focusableMode);
115831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            }
115931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
116031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
116131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
11620142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka    void enableChildrenCache(int fromPage, int toPage) {
11630142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka        if (fromPage > toPage) {
11640142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka            final int temp = fromPage;
11650142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka            fromPage = toPage;
11660142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka            toPage = temp;
11673a2b3f2be58843d26549fb0ec6c6533627c7cd19Mike Cleron        }
1168aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung
1169dee0589388ba0f6373912e18bf86243282fb3b9bMichael Jurka        final int screenCount = getChildCount();
1170fea5d0250767ab938f623a404e6292a32dd2fdf5Adam Powell
11710142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka        fromPage = Math.max(fromPage, 0);
11720142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka        toPage = Math.min(toPage, screenCount - 1);
1173fea5d0250767ab938f623a404e6292a32dd2fdf5Adam Powell
11740142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka        for (int i = fromPage; i <= toPage; i++) {
117531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            final CellLayout layout = (CellLayout) getChildAt(i);
117631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            layout.setChildrenDrawnWithCacheEnabled(true);
117731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            layout.setChildrenDrawingCacheEnabled(true);
117831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
117931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
118031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
118131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    void clearChildrenCache() {
1182dee0589388ba0f6373912e18bf86243282fb3b9bMichael Jurka        final int screenCount = getChildCount();
1183dee0589388ba0f6373912e18bf86243282fb3b9bMichael Jurka        for (int i = 0; i < screenCount; i++) {
118431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            final CellLayout layout = (CellLayout) getChildAt(i);
118531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            layout.setChildrenDrawnWithCacheEnabled(false);
118631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
118731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
118831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
1189ce7e05fbe8abd5f25ec47e0e05b5cc76ceb39d2eMichael Jurka    protected void enableChildrenLayers(boolean enable) {
1190ce7e05fbe8abd5f25ec47e0e05b5cc76ceb39d2eMichael Jurka        for (int i = 0; i < getPageCount(); i++) {
1191a7f801fc5b5715223e868ed599da69c5edf436eeMichael Jurka            ((ViewGroup)getChildAt(i)).setChildrenLayersEnabled(enable);
1192ce7e05fbe8abd5f25ec47e0e05b5cc76ceb39d2eMichael Jurka        }
1193ce7e05fbe8abd5f25ec47e0e05b5cc76ceb39d2eMichael Jurka    }
1194ce7e05fbe8abd5f25ec47e0e05b5cc76ceb39d2eMichael Jurka    @Override
1195ce7e05fbe8abd5f25ec47e0e05b5cc76ceb39d2eMichael Jurka    protected void pageBeginMoving() {
1196ce7e05fbe8abd5f25ec47e0e05b5cc76ceb39d2eMichael Jurka        enableChildrenLayers(true);
1197ce7e05fbe8abd5f25ec47e0e05b5cc76ceb39d2eMichael Jurka        super.pageBeginMoving();
1198ce7e05fbe8abd5f25ec47e0e05b5cc76ceb39d2eMichael Jurka    }
1199ce7e05fbe8abd5f25ec47e0e05b5cc76ceb39d2eMichael Jurka
1200ce7e05fbe8abd5f25ec47e0e05b5cc76ceb39d2eMichael Jurka    @Override
1201ce7e05fbe8abd5f25ec47e0e05b5cc76ceb39d2eMichael Jurka    protected void pageEndMoving() {
1202ce7e05fbe8abd5f25ec47e0e05b5cc76ceb39d2eMichael Jurka        if (!mIsSmall && !mIsInUnshrinkAnimation) {
1203ce7e05fbe8abd5f25ec47e0e05b5cc76ceb39d2eMichael Jurka            enableChildrenLayers(false);
1204ce7e05fbe8abd5f25ec47e0e05b5cc76ceb39d2eMichael Jurka        }
1205ce7e05fbe8abd5f25ec47e0e05b5cc76ceb39d2eMichael Jurka        super.pageEndMoving();
1206ce7e05fbe8abd5f25ec47e0e05b5cc76ceb39d2eMichael Jurka    }
1207ce7e05fbe8abd5f25ec47e0e05b5cc76ceb39d2eMichael Jurka
12081d0867c8de6a889bccde9b7e768daef182a25e5cJeff Brown    @Override
12091d0867c8de6a889bccde9b7e768daef182a25e5cJeff Brown    protected void onWallpaperTap(MotionEvent ev) {
12101d0867c8de6a889bccde9b7e768daef182a25e5cJeff Brown        final int[] position = mTempCell;
12111d0867c8de6a889bccde9b7e768daef182a25e5cJeff Brown        getLocationOnScreen(position);
12121d0867c8de6a889bccde9b7e768daef182a25e5cJeff Brown
12131d0867c8de6a889bccde9b7e768daef182a25e5cJeff Brown        int pointerIndex = ev.getActionIndex();
12141d0867c8de6a889bccde9b7e768daef182a25e5cJeff Brown        position[0] += (int) ev.getX(pointerIndex);
12151d0867c8de6a889bccde9b7e768daef182a25e5cJeff Brown        position[1] += (int) ev.getY(pointerIndex);
12161d0867c8de6a889bccde9b7e768daef182a25e5cJeff Brown
12171d0867c8de6a889bccde9b7e768daef182a25e5cJeff Brown        mWallpaperManager.sendWallpaperCommand(getWindowToken(),
12181d0867c8de6a889bccde9b7e768daef182a25e5cJeff Brown                ev.getAction() == MotionEvent.ACTION_UP
12191d0867c8de6a889bccde9b7e768daef182a25e5cJeff Brown                        ? WallpaperManager.COMMAND_TAP : WallpaperManager.COMMAND_SECONDARY_TAP,
12201d0867c8de6a889bccde9b7e768daef182a25e5cJeff Brown                position[0], position[1], 0, null);
12211d0867c8de6a889bccde9b7e768daef182a25e5cJeff Brown    }
12221d0867c8de6a889bccde9b7e768daef182a25e5cJeff Brown
122301f0ed4126be412c8c4352026dad3b2a49832267Michael Jurka    public boolean isSmall() {
122401f0ed4126be412c8c4352026dad3b2a49832267Michael Jurka        return mIsSmall;
122501f0ed4126be412c8c4352026dad3b2a49832267Michael Jurka    }
122601f0ed4126be412c8c4352026dad3b2a49832267Michael Jurka
1227a985e598f6071f4caca15ba3cb6b2cd3e38b217dAdam Cohen    private float getYScaleForScreen(int screen) {
1228a985e598f6071f4caca15ba3cb6b2cd3e38b217dAdam Cohen        int x = Math.abs(screen - 2);
1229a985e598f6071f4caca15ba3cb6b2cd3e38b217dAdam Cohen
1230a985e598f6071f4caca15ba3cb6b2cd3e38b217dAdam Cohen        // TODO: This should be generalized for use with arbitrary rotation angles.
1231a985e598f6071f4caca15ba3cb6b2cd3e38b217dAdam Cohen        switch(x) {
1232a985e598f6071f4caca15ba3cb6b2cd3e38b217dAdam Cohen            case 0: return EXTRA_SCALE_FACTOR_0;
1233a985e598f6071f4caca15ba3cb6b2cd3e38b217dAdam Cohen            case 1: return EXTRA_SCALE_FACTOR_1;
1234a985e598f6071f4caca15ba3cb6b2cd3e38b217dAdam Cohen            case 2: return EXTRA_SCALE_FACTOR_2;
1235a985e598f6071f4caca15ba3cb6b2cd3e38b217dAdam Cohen        }
1236a985e598f6071f4caca15ba3cb6b2cd3e38b217dAdam Cohen        return 1.0f;
1237a985e598f6071f4caca15ba3cb6b2cd3e38b217dAdam Cohen    }
1238a985e598f6071f4caca15ba3cb6b2cd3e38b217dAdam Cohen
1239af91de06b99e2d5d41ce79fefa34ce2111e51917Michael Jurka    public void shrink(ShrinkState shrinkState) {
1240af91de06b99e2d5d41ce79fefa34ce2111e51917Michael Jurka        shrink(shrinkState, true);
1241af91de06b99e2d5d41ce79fefa34ce2111e51917Michael Jurka    }
12429171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung
1243af91de06b99e2d5d41ce79fefa34ce2111e51917Michael Jurka    // we use this to shrink the workspace for the all apps view and the customize view
1244af91de06b99e2d5d41ce79fefa34ce2111e51917Michael Jurka    public void shrink(ShrinkState shrinkState, boolean animated) {
1245883f55b1d261862b0de1b43af0b17d351761a9c6Michael Jurka        if (mFirstLayout) {
1246883f55b1d261862b0de1b43af0b17d351761a9c6Michael Jurka            // (mFirstLayout == "first layout has not happened yet")
1247883f55b1d261862b0de1b43af0b17d351761a9c6Michael Jurka            // if we get a call to shrink() as part of our initialization (for example, if
1248883f55b1d261862b0de1b43af0b17d351761a9c6Michael Jurka            // Launcher is started in All Apps mode) then we need to wait for a layout call
1249883f55b1d261862b0de1b43af0b17d351761a9c6Michael Jurka            // to get our width so we can layout the mini-screen views correctly
1250883f55b1d261862b0de1b43af0b17d351761a9c6Michael Jurka            mWaitingToShrink = true;
1251af91de06b99e2d5d41ce79fefa34ce2111e51917Michael Jurka            mWaitingToShrinkState = shrinkState;
1252883f55b1d261862b0de1b43af0b17d351761a9c6Michael Jurka            return;
1253883f55b1d261862b0de1b43af0b17d351761a9c6Michael Jurka        }
12543e7c7634531302271270c8cf418abc959d621cbcMichael Jurka        // Stop any scrolling, move to the current page right away
1255a997ac26664befbd0d5b172e36ef9e8b2c63b435Michael Jurka        setCurrentPage((mNextPage != INVALID_PAGE) ? mNextPage : mCurrentPage);
12563e7c7634531302271270c8cf418abc959d621cbcMichael Jurka
12571b0aaac0b3abd777ed319341f95a8dfff23c79f4Adam Cohen        CellLayout currentPage = (CellLayout) getChildAt(mCurrentPage);
12580dfcf68b58bec1ac74f9b8700e3357f8e6d8b4a3Patrick Dubroy        if (currentPage == null) {
12590dfcf68b58bec1ac74f9b8700e3357f8e6d8b4a3Patrick Dubroy            Log.w(TAG, "currentPage is NULL! mCurrentPage " + mCurrentPage
12600dfcf68b58bec1ac74f9b8700e3357f8e6d8b4a3Patrick Dubroy                    + " mNextPage " + mNextPage);
12610dfcf68b58bec1ac74f9b8700e3357f8e6d8b4a3Patrick Dubroy            return;
12620dfcf68b58bec1ac74f9b8700e3357f8e6d8b4a3Patrick Dubroy        }
1263ddb821981e0919bbd3b4c9a2b6aa1811d6c86bb6Adam Cohen        if (currentPage.getBackgroundAlphaMultiplier() < 1.0f) {
1264ddb821981e0919bbd3b4c9a2b6aa1811d6c86bb6Adam Cohen            currentPage.setBackgroundAlpha(0.0f);
1265ddb821981e0919bbd3b4c9a2b6aa1811d6c86bb6Adam Cohen        }
12661b0aaac0b3abd777ed319341f95a8dfff23c79f4Adam Cohen        currentPage.setBackgroundAlphaMultiplier(1.0f);
12671b0aaac0b3abd777ed319341f95a8dfff23c79f4Adam Cohen
12680dfcf68b58bec1ac74f9b8700e3357f8e6d8b4a3Patrick Dubroy        mIsSmall = true;
12690dfcf68b58bec1ac74f9b8700e3357f8e6d8b4a3Patrick Dubroy        mShrinkState = shrinkState;
12700dfcf68b58bec1ac74f9b8700e3357f8e6d8b4a3Patrick Dubroy
12710dfcf68b58bec1ac74f9b8700e3357f8e6d8b4a3Patrick Dubroy        // we intercept and reject all touch events when we're small, so be sure to reset the state
12720dfcf68b58bec1ac74f9b8700e3357f8e6d8b4a3Patrick Dubroy        mTouchState = TOUCH_STATE_REST;
12730dfcf68b58bec1ac74f9b8700e3357f8e6d8b4a3Patrick Dubroy        mActivePointerId = INVALID_POINTER;
12740dfcf68b58bec1ac74f9b8700e3357f8e6d8b4a3Patrick Dubroy
12757247f6315baf16eacb3286f21bd80321385c1defPatrick Dubroy        final Resources res = getResources();
1276dee0589388ba0f6373912e18bf86243282fb3b9bMichael Jurka        final int screenWidth = getWidth();
1277213d96354e7407dba5c9715eb10d04bebd82c395Michael Jurka        final int screenHeight = getHeight();
12780142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka
1279244d74cb353f1260c4d633e719bf84bb3b6e52bcPatrick Dubroy        // How much the workspace shrinks when we enter all apps or customization mode
1280244d74cb353f1260c4d633e719bf84bb3b6e52bcPatrick Dubroy        final float shrinkFactor = res.getInteger(R.integer.config_workspaceShrinkPercent) / 100.0f;
1281244d74cb353f1260c4d633e719bf84bb3b6e52bcPatrick Dubroy
12820142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka        // Making the assumption that all pages have the same width as the 0th
12830142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka        final int pageWidth = getChildAt(0).getMeasuredWidth();
12840142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka        final int pageHeight = getChildAt(0).getMeasuredHeight();
12850142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka
1286244d74cb353f1260c4d633e719bf84bb3b6e52bcPatrick Dubroy        final int scaledPageWidth = (int) (shrinkFactor * pageWidth);
1287244d74cb353f1260c4d633e719bf84bb3b6e52bcPatrick Dubroy        final int scaledPageHeight = (int) (shrinkFactor * pageHeight);
1288a985e598f6071f4caca15ba3cb6b2cd3e38b217dAdam Cohen        final float extraScaledSpacing = res.getDimension(R.dimen.smallScreenExtraSpacing);
1289dee0589388ba0f6373912e18bf86243282fb3b9bMichael Jurka
1290dee0589388ba0f6373912e18bf86243282fb3b9bMichael Jurka        final int screenCount = getChildCount();
1291a985e598f6071f4caca15ba3cb6b2cd3e38b217dAdam Cohen        float totalWidth = screenCount * scaledPageWidth + (screenCount - 1) * extraScaledSpacing;
1292213d96354e7407dba5c9715eb10d04bebd82c395Michael Jurka
1293df4b83dd9d6380ab963c62d1f9d1312efc87cb0fWinson Chung        boolean isPortrait = getMeasuredHeight() > getMeasuredWidth();
1294742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka        float y = (isPortrait ?
1295ef0066b52d2754ca0553ec79613c650b5649afaaWinson Chung                getResources().getDimension(R.dimen.allAppsSmallScreenVerticalMarginPortrait) :
1296ef0066b52d2754ca0553ec79613c650b5649afaaWinson Chung                getResources().getDimension(R.dimen.allAppsSmallScreenVerticalMarginLandscape));
12973e7c7634531302271270c8cf418abc959d621cbcMichael Jurka        float finalAlpha = 1.0f;
12983e7c7634531302271270c8cf418abc959d621cbcMichael Jurka        float extraShrinkFactor = 1.0f;
1299f16e571330f030e445c4f7f63f55d093337ffd87Adam Cohen
1300af91de06b99e2d5d41ce79fefa34ce2111e51917Michael Jurka        if (shrinkState == ShrinkState.BOTTOM_VISIBLE) {
1301742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka             y = screenHeight - y - scaledPageHeight;
1302af91de06b99e2d5d41ce79fefa34ce2111e51917Michael Jurka        } else if (shrinkState == ShrinkState.BOTTOM_HIDDEN) {
13033e7c7634531302271270c8cf418abc959d621cbcMichael Jurka            // We shrink and disappear to nothing in the case of all apps
13043e7c7634531302271270c8cf418abc959d621cbcMichael Jurka            // (which is when we shrink to the bottom)
1305742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka            y = screenHeight - y - scaledPageHeight;
13066b879f0a5885274a85333531e091283405d490ccAdam Lesinski            finalAlpha = 0.0f;
1307af91de06b99e2d5d41ce79fefa34ce2111e51917Michael Jurka        } else if (shrinkState == ShrinkState.MIDDLE) {
1308742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka            y = screenHeight / 2 - scaledPageHeight / 2;
1309b0b2e6f588367cf40a4270cca81af7d78f8e382eWinson Chung            finalAlpha = 1.0f;
1310213d96354e7407dba5c9715eb10d04bebd82c395Michael Jurka        }
1311dee0589388ba0f6373912e18bf86243282fb3b9bMichael Jurka
1312f16e571330f030e445c4f7f63f55d093337ffd87Adam Cohen        int duration;
1313f16e571330f030e445c4f7f63f55d093337ffd87Adam Cohen        if (shrinkState == ShrinkState.BOTTOM_HIDDEN || shrinkState == ShrinkState.BOTTOM_VISIBLE) {
1314785d2eb2b8d7072c8124300dd9168ff51a91cf38Winson Chung            duration = res.getInteger(R.integer.config_appsCustomizeWorkspaceShrinkTime);
1315f16e571330f030e445c4f7f63f55d093337ffd87Adam Cohen        } else {
1316f16e571330f030e445c4f7f63f55d093337ffd87Adam Cohen            duration = res.getInteger(R.integer.config_customizeWorkspaceShrinkTime);
1317f16e571330f030e445c4f7f63f55d093337ffd87Adam Cohen        }
1318f16e571330f030e445c4f7f63f55d093337ffd87Adam Cohen
1319dee0589388ba0f6373912e18bf86243282fb3b9bMichael Jurka        // We animate all the screens to the centered position in workspace
1320dee0589388ba0f6373912e18bf86243282fb3b9bMichael Jurka        // At the same time, the screens become greyed/dimmed
1321dee0589388ba0f6373912e18bf86243282fb3b9bMichael Jurka
1322dee0589388ba0f6373912e18bf86243282fb3b9bMichael Jurka        // newX is initialized to the left-most position of the centered screens
1323742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka        float x = mScroller.getFinalX() + screenWidth / 2 - totalWidth / 2;
1324a985e598f6071f4caca15ba3cb6b2cd3e38b217dAdam Cohen
1325a985e598f6071f4caca15ba3cb6b2cd3e38b217dAdam Cohen        // We are going to scale about the center of the view, so we need to adjust the positions
1326a985e598f6071f4caca15ba3cb6b2cd3e38b217dAdam Cohen        // of the views accordingly
1327742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka        x -= (pageWidth - scaledPageWidth) / 2.0f;
1328742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka        y -= (pageHeight - scaledPageHeight) / 2.0f;
13293c4c20fbe682cb4b3ef94f09afe0af09171583f3Michael Jurka
13303c4c20fbe682cb4b3ef94f09afe0af09171583f3Michael Jurka        if (mAnimator != null) {
13313c4c20fbe682cb4b3ef94f09afe0af09171583f3Michael Jurka            mAnimator.cancel();
13323c4c20fbe682cb4b3ef94f09afe0af09171583f3Michael Jurka        }
1333f16e571330f030e445c4f7f63f55d093337ffd87Adam Cohen
13343c4c20fbe682cb4b3ef94f09afe0af09171583f3Michael Jurka        mAnimator = new AnimatorSet();
1335742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka
1336244d74cb353f1260c4d633e719bf84bb3b6e52bcPatrick Dubroy        final int childCount = getChildCount();
1337244d74cb353f1260c4d633e719bf84bb3b6e52bcPatrick Dubroy        final float[] oldXs = new float[childCount];
1338244d74cb353f1260c4d633e719bf84bb3b6e52bcPatrick Dubroy        final float[] oldYs = new float[childCount];
1339244d74cb353f1260c4d633e719bf84bb3b6e52bcPatrick Dubroy        final float[] oldScaleXs = new float[childCount];
1340244d74cb353f1260c4d633e719bf84bb3b6e52bcPatrick Dubroy        final float[] oldScaleYs = new float[childCount];
1341244d74cb353f1260c4d633e719bf84bb3b6e52bcPatrick Dubroy        final float[] oldBackgroundAlphas = new float[childCount];
1342244d74cb353f1260c4d633e719bf84bb3b6e52bcPatrick Dubroy        final float[] oldAlphas = new float[childCount];
1343244d74cb353f1260c4d633e719bf84bb3b6e52bcPatrick Dubroy        final float[] oldRotationYs = new float[childCount];
1344244d74cb353f1260c4d633e719bf84bb3b6e52bcPatrick Dubroy        final float[] newXs = new float[childCount];
1345244d74cb353f1260c4d633e719bf84bb3b6e52bcPatrick Dubroy        final float[] newYs = new float[childCount];
1346244d74cb353f1260c4d633e719bf84bb3b6e52bcPatrick Dubroy        final float[] newScaleXs = new float[childCount];
1347244d74cb353f1260c4d633e719bf84bb3b6e52bcPatrick Dubroy        final float[] newScaleYs = new float[childCount];
1348244d74cb353f1260c4d633e719bf84bb3b6e52bcPatrick Dubroy        final float[] newBackgroundAlphas = new float[childCount];
1349244d74cb353f1260c4d633e719bf84bb3b6e52bcPatrick Dubroy        final float[] newAlphas = new float[childCount];
1350244d74cb353f1260c4d633e719bf84bb3b6e52bcPatrick Dubroy        final float[] newRotationYs = new float[childCount];
1351742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka
1352dee0589388ba0f6373912e18bf86243282fb3b9bMichael Jurka        for (int i = 0; i < screenCount; i++) {
1353f16e571330f030e445c4f7f63f55d093337ffd87Adam Cohen            final CellLayout cl = (CellLayout) getChildAt(i);
1354a985e598f6071f4caca15ba3cb6b2cd3e38b217dAdam Cohen
1355f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen            float rotation = (-i + 2) * WORKSPACE_ROTATION;
1356a985e598f6071f4caca15ba3cb6b2cd3e38b217dAdam Cohen            float rotationScaleX = (float) (1.0f / Math.cos(Math.PI * rotation / 180.0f));
1357a985e598f6071f4caca15ba3cb6b2cd3e38b217dAdam Cohen            float rotationScaleY = getYScaleForScreen(i);
1358a985e598f6071f4caca15ba3cb6b2cd3e38b217dAdam Cohen
1359742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka            oldAlphas[i] = cl.getAlpha();
1360742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka            newAlphas[i] = finalAlpha;
1361abded66084680bb31cc7ea403c88f44f79a3c884Michael Jurka            if (animated && (oldAlphas[i] != 0f || newAlphas[i] != 0f)) {
1362abded66084680bb31cc7ea403c88f44f79a3c884Michael Jurka                // if the CellLayout will be visible during the animation, force building its
1363abded66084680bb31cc7ea403c88f44f79a3c884Michael Jurka                // hardware layer immediately so we don't see a blip later in the animation
1364abded66084680bb31cc7ea403c88f44f79a3c884Michael Jurka                cl.buildChildrenLayer();
1365abded66084680bb31cc7ea403c88f44f79a3c884Michael Jurka            }
13663e5ad58a6885273a60f8eb77aa9aee965eecdb2cMichael Jurka            if (animated) {
1367742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                oldXs[i] = cl.getX();
1368742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                oldYs[i] = cl.getY();
1369742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                oldScaleXs[i] = cl.getScaleX();
1370742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                oldScaleYs[i] = cl.getScaleY();
1371742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                oldBackgroundAlphas[i] = cl.getBackgroundAlpha();
1372742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                oldRotationYs[i] = cl.getRotationY();
1373742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                newXs[i] = x;
1374742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                newYs[i] = y;
1375244d74cb353f1260c4d633e719bf84bb3b6e52bcPatrick Dubroy                newScaleXs[i] = shrinkFactor * rotationScaleX * extraShrinkFactor;
1376244d74cb353f1260c4d633e719bf84bb3b6e52bcPatrick Dubroy                newScaleYs[i] = shrinkFactor * rotationScaleY * extraShrinkFactor;
1377742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                newBackgroundAlphas[i] = finalAlpha;
1378742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                newRotationYs[i] = rotation;
137979212d81361d1ad8c941c48f8323eb526643ca68Michael Jurka            } else {
1380742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                cl.setX((int)x);
1381742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                cl.setY((int)y);
1382244d74cb353f1260c4d633e719bf84bb3b6e52bcPatrick Dubroy                cl.setScaleX(shrinkFactor * rotationScaleX * extraShrinkFactor);
1383244d74cb353f1260c4d633e719bf84bb3b6e52bcPatrick Dubroy                cl.setScaleY(shrinkFactor * rotationScaleY * extraShrinkFactor);
1384883f55b1d261862b0de1b43af0b17d351761a9c6Michael Jurka                cl.setBackgroundAlpha(finalAlpha);
13853e7c7634531302271270c8cf418abc959d621cbcMichael Jurka                cl.setAlpha(finalAlpha);
1386a985e598f6071f4caca15ba3cb6b2cd3e38b217dAdam Cohen                cl.setRotationY(rotation);
13873e5ad58a6885273a60f8eb77aa9aee965eecdb2cMichael Jurka                mShrinkAnimationListener.onAnimationEnd(null);
138879212d81361d1ad8c941c48f8323eb526643ca68Michael Jurka            }
1389dee0589388ba0f6373912e18bf86243282fb3b9bMichael Jurka            // increment newX for the next screen
1390742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka            x += scaledPageWidth + extraScaledSpacing;
1391dee0589388ba0f6373912e18bf86243282fb3b9bMichael Jurka        }
1392ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka
1393ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        float wallpaperOffset = 0.5f;
1394ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        Display display = mLauncher.getWindowManager().getDefaultDisplay();
1395ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        int wallpaperTravelHeight = (int) (display.getHeight() *
1396ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka                wallpaperTravelToScreenHeightRatio(display.getWidth(), display.getHeight()));
1397ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        float offsetFromCenter = (wallpaperTravelHeight / (float) mWallpaperHeight) / 2f;
1398ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka        boolean isLandscape = display.getWidth() > display.getHeight();
1399ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka
1400ff0e01b65dac8861d0a319fb643c67f8a573aa97Michael Jurka        // on phones, don't scroll the wallpaper horizontally or vertically when switching
1401ff0e01b65dac8861d0a319fb643c67f8a573aa97Michael Jurka        // to/from all apps
1402ff0e01b65dac8861d0a319fb643c67f8a573aa97Michael Jurka        final boolean enableWallpaperEffects =
1403ff0e01b65dac8861d0a319fb643c67f8a573aa97Michael Jurka            isHardwareAccelerated() && LauncherApplication.isScreenLarge();
1404b46a2d130b3d04df830402d579060b63db559ae3Winson Chung        if (enableWallpaperEffects) {
1405b46a2d130b3d04df830402d579060b63db559ae3Winson Chung            switch (shrinkState) {
1406b46a2d130b3d04df830402d579060b63db559ae3Winson Chung                // animating in
1407b46a2d130b3d04df830402d579060b63db559ae3Winson Chung                case MIDDLE:
1408b46a2d130b3d04df830402d579060b63db559ae3Winson Chung                case SPRING_LOADED:
1409b46a2d130b3d04df830402d579060b63db559ae3Winson Chung                    wallpaperOffset = 0.5f;
1410b46a2d130b3d04df830402d579060b63db559ae3Winson Chung                    mWallpaperOffset.setVerticalCatchupConstant(isLandscape ? 0.34f : 0.32f);
1411b46a2d130b3d04df830402d579060b63db559ae3Winson Chung                    break;
1412b46a2d130b3d04df830402d579060b63db559ae3Winson Chung                case BOTTOM_HIDDEN:
1413b46a2d130b3d04df830402d579060b63db559ae3Winson Chung                case BOTTOM_VISIBLE:
1414b46a2d130b3d04df830402d579060b63db559ae3Winson Chung                    // allapps
1415b46a2d130b3d04df830402d579060b63db559ae3Winson Chung                    wallpaperOffset = 0.5f - offsetFromCenter;
1416b46a2d130b3d04df830402d579060b63db559ae3Winson Chung                    mWallpaperOffset.setVerticalCatchupConstant(isLandscape ? 0.34f : 0.32f);
1417b46a2d130b3d04df830402d579060b63db559ae3Winson Chung                    break;
1418b46a2d130b3d04df830402d579060b63db559ae3Winson Chung            }
1419ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        }
1420ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka
1421742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka        setLayoutScale(1.0f);
1422ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka        if (animated) {
1423b46a2d130b3d04df830402d579060b63db559ae3Winson Chung            if (enableWallpaperEffects) {
1424b46a2d130b3d04df830402d579060b63db559ae3Winson Chung                mWallpaperOffset.setHorizontalCatchupConstant(0.46f);
1425b46a2d130b3d04df830402d579060b63db559ae3Winson Chung                mWallpaperOffset.setOverrideHorizontalCatchupConstant(true);
1426b46a2d130b3d04df830402d579060b63db559ae3Winson Chung            }
1427ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka
1428ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            mSyncWallpaperOffsetWithScroll = false;
1429ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka
1430742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka            ValueAnimator animWithInterpolator =
1431742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                ValueAnimator.ofFloat(0f, 1f).setDuration(duration);
1432742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka            animWithInterpolator.setInterpolator(mZoomOutInterpolator);
1433742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka
1434742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka            final float oldHorizontalWallpaperOffset = getHorizontalWallpaperOffset();
1435742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka            final float oldVerticalWallpaperOffset = getVerticalWallpaperOffset();
1436742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka            final float newHorizontalWallpaperOffset = 0.5f;
1437742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka            final float newVerticalWallpaperOffset = wallpaperOffset;
1438c2e26a028d1829bdddb1e47aac12951e12ef83e0Michael Jurka            animWithInterpolator.addUpdateListener(new LauncherAnimatorUpdateListener() {
1439c2e26a028d1829bdddb1e47aac12951e12ef83e0Michael Jurka                public void onAnimationUpdate(float a, float b) {
1440c4e772e4b3f21bde342e475ebc49b5b76b8f74e8Michael Jurka                    if (b == 0f) {
1441c4e772e4b3f21bde342e475ebc49b5b76b8f74e8Michael Jurka                        // an optimization, and required for correct behavior.
1442c4e772e4b3f21bde342e475ebc49b5b76b8f74e8Michael Jurka                        return;
1443c4e772e4b3f21bde342e475ebc49b5b76b8f74e8Michael Jurka                    }
1444a71cb1778dc0c7e76132d21296c58da777183e26Michael Jurka                    invalidate();
1445b46a2d130b3d04df830402d579060b63db559ae3Winson Chung                    if (enableWallpaperEffects) {
1446b46a2d130b3d04df830402d579060b63db559ae3Winson Chung                        setHorizontalWallpaperOffset(
1447742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                            a * oldHorizontalWallpaperOffset + b * newHorizontalWallpaperOffset);
1448b46a2d130b3d04df830402d579060b63db559ae3Winson Chung                        setVerticalWallpaperOffset(
1449742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                            a * oldVerticalWallpaperOffset + b * newVerticalWallpaperOffset);
1450b46a2d130b3d04df830402d579060b63db559ae3Winson Chung                    }
1451742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                    for (int i = 0; i < screenCount; i++) {
1452742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                        final CellLayout cl = (CellLayout) getChildAt(i);
1453742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                        cl.fastInvalidate();
1454742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                        cl.setFastX(a * oldXs[i] + b * newXs[i]);
1455742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                        cl.setFastY(a * oldYs[i] + b * newYs[i]);
1456742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                        cl.setFastScaleX(a * oldScaleXs[i] + b * newScaleXs[i]);
1457742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                        cl.setFastScaleY(a * oldScaleYs[i] + b * newScaleYs[i]);
1458742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                        cl.setFastBackgroundAlpha(
1459742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                                a * oldBackgroundAlphas[i] + b * newBackgroundAlphas[i]);
1460742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                        cl.setFastAlpha(a * oldAlphas[i] + b * newAlphas[i]);
1461742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                        cl.setFastRotationY(a * oldRotationYs[i] + b * newRotationYs[i]);
1462742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                    }
1463742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                }
1464742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka            });
1465742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka            mAnimator.playTogether(animWithInterpolator);
1466bea15195346bab3c52b0156e92f2b71f0811b210Michael Jurka            mAnimator.addListener(mShrinkAnimationListener);
14673c4c20fbe682cb4b3ef94f09afe0af09171583f3Michael Jurka            mAnimator.start();
1468b46a2d130b3d04df830402d579060b63db559ae3Winson Chung        } else if (enableWallpaperEffects) {
1469ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            setVerticalWallpaperOffset(wallpaperOffset);
1470ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            setHorizontalWallpaperOffset(0.5f);
1471ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            updateWallpaperOffsetImmediately();
14723c4c20fbe682cb4b3ef94f09afe0af09171583f3Michael Jurka        }
1473dee0589388ba0f6373912e18bf86243282fb3b9bMichael Jurka        setChildrenDrawnWithCacheEnabled(true);
14748d006d5e144ae33e509ea42e0b9760ef6c5bc884Winson Chung
1475f0ea4d3378be7b962c8e0bce2392df5e82491fb8Winson Chung        showBackgroundGradientForAllApps();
1476dee0589388ba0f6373912e18bf86243282fb3b9bMichael Jurka    }
1477dee0589388ba0f6373912e18bf86243282fb3b9bMichael Jurka
147861033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen    /*
147961033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen     * This interpolator emulates the rate at which the perceived scale of an object changes
148061033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen     * as its distance from a camera increases. When this interpolator is applied to a scale
148161033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen     * animation on a view, it evokes the sense that the object is shrinking due to moving away
148261033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen     * from the camera.
148361033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen     */
148461033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen    static class ZInterpolator implements TimeInterpolator {
148561033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen        private float focalLength;
148661033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen
148761033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen        public ZInterpolator(float foc) {
148861033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen            focalLength = foc;
148961033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen        }
149061033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen
1491eed565d5126cb40b2a7ecdf5f6e8ac7a7464007bAdam Cohen        public float getInterpolation(float input) {
1492eed565d5126cb40b2a7ecdf5f6e8ac7a7464007bAdam Cohen            return (1.0f - focalLength / (focalLength + input)) /
149361033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen                (1.0f - focalLength / (focalLength + 1.0f));
1494cbbaf9862aa160c5e397cb49b554de20981a35feAdam Cohen        }
1495cbbaf9862aa160c5e397cb49b554de20981a35feAdam Cohen    }
1496cbbaf9862aa160c5e397cb49b554de20981a35feAdam Cohen
149761033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen    /*
149861033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen     * The exact reverse of ZInterpolator.
149961033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen     */
150061033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen    static class InverseZInterpolator implements TimeInterpolator {
150161033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen        private ZInterpolator zInterpolator;
150261033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen        public InverseZInterpolator(float foc) {
150361033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen            zInterpolator = new ZInterpolator(foc);
150461033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen        }
1505cbbaf9862aa160c5e397cb49b554de20981a35feAdam Cohen        public float getInterpolation(float input) {
150661033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen            return 1 - zInterpolator.getInterpolation(1 - input);
1507cbbaf9862aa160c5e397cb49b554de20981a35feAdam Cohen        }
1508cbbaf9862aa160c5e397cb49b554de20981a35feAdam Cohen    }
1509cbbaf9862aa160c5e397cb49b554de20981a35feAdam Cohen
151061033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen    /*
151161033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen     * ZInterpolator compounded with an ease-out.
151261033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen     */
151361033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen    static class ZoomOutInterpolator implements TimeInterpolator {
151461033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen        private final ZInterpolator zInterpolator = new ZInterpolator(0.2f);
1515ea57348cc8f4647f6bc35a42cd45662ddb828b92Michael Jurka        private final DecelerateInterpolator decelerate = new DecelerateInterpolator(1.8f);
151661033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen
151761033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen        public float getInterpolation(float input) {
151861033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen            return decelerate.getInterpolation(zInterpolator.getInterpolation(input));
151961033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen        }
152061033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen    }
152161033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen
152261033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen    /*
152361033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen     * InvereZInterpolator compounded with an ease-out.
152461033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen     */
152561033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen    static class ZoomInInterpolator implements TimeInterpolator {
152661033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen        private final InverseZInterpolator inverseZInterpolator = new InverseZInterpolator(0.35f);
152761033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen        private final DecelerateInterpolator decelerate = new DecelerateInterpolator(3.0f);
152861033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen
152961033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen        public float getInterpolation(float input) {
153061033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen            return decelerate.getInterpolation(inverseZInterpolator.getInterpolation(input));
153161033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen        }
153261033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen    }
153361033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen
153461033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen    private final ZoomOutInterpolator mZoomOutInterpolator = new ZoomOutInterpolator();
153561033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen    private final ZoomInInterpolator mZoomInInterpolator = new ZoomInInterpolator();
15363e7c7634531302271270c8cf418abc959d621cbcMichael Jurka
15373e7c7634531302271270c8cf418abc959d621cbcMichael Jurka    /*
15386639687cd67bab1aeef2a75e5c6bc458b20dc082Adam Cohen    *
15396639687cd67bab1aeef2a75e5c6bc458b20dc082Adam Cohen    * We call these methods (onDragStartedWithItemSpans/onDragStartedWithSize) whenever we
15406639687cd67bab1aeef2a75e5c6bc458b20dc082Adam Cohen    * start a drag in Launcher, regardless of whether the drag has ever entered the Workspace
15416639687cd67bab1aeef2a75e5c6bc458b20dc082Adam Cohen    *
15426639687cd67bab1aeef2a75e5c6bc458b20dc082Adam Cohen    * These methods mark the appropriate pages as accepting drops (which alters their visual
15436639687cd67bab1aeef2a75e5c6bc458b20dc082Adam Cohen    * appearance).
15446639687cd67bab1aeef2a75e5c6bc458b20dc082Adam Cohen    *
15456639687cd67bab1aeef2a75e5c6bc458b20dc082Adam Cohen    */
15466639687cd67bab1aeef2a75e5c6bc458b20dc082Adam Cohen    public void onDragStartedWithItem(View v) {
15476639687cd67bab1aeef2a75e5c6bc458b20dc082Adam Cohen        final Canvas canvas = new Canvas();
15486639687cd67bab1aeef2a75e5c6bc458b20dc082Adam Cohen
15496639687cd67bab1aeef2a75e5c6bc458b20dc082Adam Cohen        // We need to add extra padding to the bitmap to make room for the glow effect
15506639687cd67bab1aeef2a75e5c6bc458b20dc082Adam Cohen        final int bitmapPadding = HolographicOutlineHelper.MAX_OUTER_BLUR_RADIUS;
15516639687cd67bab1aeef2a75e5c6bc458b20dc082Adam Cohen
15526639687cd67bab1aeef2a75e5c6bc458b20dc082Adam Cohen        // The outline is used to visualize where the item will land if dropped
15536639687cd67bab1aeef2a75e5c6bc458b20dc082Adam Cohen        mDragOutline = createDragOutline(v, canvas, bitmapPadding);
15546639687cd67bab1aeef2a75e5c6bc458b20dc082Adam Cohen    }
15556639687cd67bab1aeef2a75e5c6bc458b20dc082Adam Cohen
1556d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka    public void onDragStartedWithItemSpans(int spanX, int spanY, Bitmap b) {
1557d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka        final Canvas canvas = new Canvas();
15583e7c7634531302271270c8cf418abc959d621cbcMichael Jurka
1559d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka        // We need to add extra padding to the bitmap to make room for the glow effect
156038b4f7c5eab773ad36048b5ab8713750dcaaf748Michael Jurka        final int bitmapPadding = HolographicOutlineHelper.MAX_OUTER_BLUR_RADIUS;
1561d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka
1562f12c75cb48f87955600c56ccbe0aac84b0c11b28Michael Jurka        CellLayout cl = (CellLayout) getChildAt(0);
15636639687cd67bab1aeef2a75e5c6bc458b20dc082Adam Cohen
15646639687cd67bab1aeef2a75e5c6bc458b20dc082Adam Cohen        int[] size = cl.cellSpansToSize(spanX, spanY);
15656639687cd67bab1aeef2a75e5c6bc458b20dc082Adam Cohen
1566d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka        // The outline is used to visualize where the item will land if dropped
15676639687cd67bab1aeef2a75e5c6bc458b20dc082Adam Cohen        mDragOutline = createDragOutline(b, canvas, bitmapPadding, size[0], size[1]);
15683e7c7634531302271270c8cf418abc959d621cbcMichael Jurka    }
15693e7c7634531302271270c8cf418abc959d621cbcMichael Jurka
15703e7c7634531302271270c8cf418abc959d621cbcMichael Jurka    // we call this method whenever a drag and drop in Launcher finishes, even if Workspace was
15713e7c7634531302271270c8cf418abc959d621cbcMichael Jurka    // never dragged over
15727bccb42f88cbbaf8cf180a876e8c5d5e306ce62aPatrick Dubroy    public void onDragStopped(boolean success) {
15737bccb42f88cbbaf8cf180a876e8c5d5e306ce62aPatrick Dubroy        // In the success case, DragController has already called onDragExit()
15747bccb42f88cbbaf8cf180a876e8c5d5e306ce62aPatrick Dubroy        if (!success) {
1575c0dcf597084d00e4c23a7fea5fd0738f6c095a6bAdam Cohen            doDragExit(null);
15767bccb42f88cbbaf8cf180a876e8c5d5e306ce62aPatrick Dubroy        }
15773e7c7634531302271270c8cf418abc959d621cbcMichael Jurka    }
15783e7c7634531302271270c8cf418abc959d621cbcMichael Jurka
15799c6de3d7c3e7d40e1e443b6fd69e3077ab9e9673Michael Jurka    // We call this when we trigger an unshrink by clicking on the CellLayout cl
15809c6de3d7c3e7d40e1e443b6fd69e3077ab9e9673Michael Jurka    public void unshrink(CellLayout clThatWasClicked) {
1581d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka        unshrink(clThatWasClicked, false);
1582d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka    }
1583d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka
1584d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka    public void unshrink(CellLayout clThatWasClicked, boolean springLoaded) {
15859c6de3d7c3e7d40e1e443b6fd69e3077ab9e9673Michael Jurka        int newCurrentPage = indexOfChild(clThatWasClicked);
1586b0f28bd9a52fa4e343c8299d1c3e225d8e01c1e9Michael Jurka        if (mIsSmall) {
1587d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka            if (springLoaded) {
1588b26f3d6a8c62e7c1a603b6c7979375d8dd4f20d4Winson Chung                setLayoutScale(mSpringLoadedShrinkFactor);
1589d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka            }
15908c920dd3683d752aa4c43e964831ce53f9b72887Michael Jurka            scrollToNewPageWithoutMovingPages(newCurrentPage);
1591d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka            unshrink(true, springLoaded);
1592d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka        }
1593d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka    }
1594d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka
1595d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka
1596d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka    public void enterSpringLoadedDragMode(CellLayout clThatWasClicked) {
1597d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka        mShrinkState = ShrinkState.SPRING_LOADED;
1598d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka        unshrink(clThatWasClicked, true);
1599d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka    }
1600d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka
1601d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka    public void exitSpringLoadedDragMode(ShrinkState shrinkState) {
1602d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka        shrink(shrinkState);
1603dee0589388ba0f6373912e18bf86243282fb3b9bMichael Jurka    }
1604dee0589388ba0f6373912e18bf86243282fb3b9bMichael Jurka
1605758a9239f045ff4eb85c421a2f67a720b5b3c621Patrick Dubroy    public void exitWidgetResizeMode() {
1606716b51e030f9c6ed34af2b947760e46a280c65a6Adam Cohen        DragLayer dragLayer = mLauncher.getDragLayer();
16076788269814a678af976dfc7d6135993e172ce586Adam Cohen        dragLayer.clearAllResizeFrames();
1608758a9239f045ff4eb85c421a2f67a720b5b3c621Patrick Dubroy    }
1609758a9239f045ff4eb85c421a2f67a720b5b3c621Patrick Dubroy
16104cb3724a2c1e5f278e1531d643accc40fcd8e219Michael Jurka    void unshrink(boolean animated) {
1611d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka        unshrink(animated, false);
1612d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka    }
1613d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka
1614d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka    void unshrink(boolean animated, boolean springLoaded) {
1615b7e0e88412871f6582420e3eeb1552598ba8a4c1Michael Jurka        mWaitingToShrink = false;
1616b0f28bd9a52fa4e343c8299d1c3e225d8e01c1e9Michael Jurka        if (mIsSmall) {
1617d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka            float finalScaleFactor = 1.0f;
1618d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka            float finalBackgroundAlpha = 0.0f;
1619d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka            if (springLoaded) {
1620b26f3d6a8c62e7c1a603b6c7979375d8dd4f20d4Winson Chung                finalScaleFactor = mSpringLoadedShrinkFactor;
1621d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka                finalBackgroundAlpha = 1.0f;
1622d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka            } else {
1623d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka                mIsSmall = false;
1624d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka            }
16253c4c20fbe682cb4b3ef94f09afe0af09171583f3Michael Jurka            if (mAnimator != null) {
16263c4c20fbe682cb4b3ef94f09afe0af09171583f3Michael Jurka                mAnimator.cancel();
16273c4c20fbe682cb4b3ef94f09afe0af09171583f3Michael Jurka            }
16286b879f0a5885274a85333531e091283405d490ccAdam Lesinski
16293c4c20fbe682cb4b3ef94f09afe0af09171583f3Michael Jurka            mAnimator = new AnimatorSet();
1630b0f28bd9a52fa4e343c8299d1c3e225d8e01c1e9Michael Jurka            final int screenCount = getChildCount();
16314cb3724a2c1e5f278e1531d643accc40fcd8e219Michael Jurka
16324cb3724a2c1e5f278e1531d643accc40fcd8e219Michael Jurka            final int duration = getResources().getInteger(R.integer.config_workspaceUnshrinkTime);
1633ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka
1634742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka            final float[] oldTranslationXs = new float[getChildCount()];
1635742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka            final float[] oldTranslationYs = new float[getChildCount()];
1636742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka            final float[] oldScaleXs = new float[getChildCount()];
1637742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka            final float[] oldScaleYs = new float[getChildCount()];
1638742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka            final float[] oldBackgroundAlphas = new float[getChildCount()];
1639742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka            final float[] oldBackgroundAlphaMultipliers = new float[getChildCount()];
1640742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka            final float[] oldAlphas = new float[getChildCount()];
1641742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka            final float[] oldRotationYs = new float[getChildCount()];
1642742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka            final float[] newTranslationXs = new float[getChildCount()];
1643742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka            final float[] newTranslationYs = new float[getChildCount()];
1644742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka            final float[] newScaleXs = new float[getChildCount()];
1645742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka            final float[] newScaleYs = new float[getChildCount()];
1646742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka            final float[] newBackgroundAlphas = new float[getChildCount()];
1647742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka            final float[] newBackgroundAlphaMultipliers = new float[getChildCount()];
1648742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka            final float[] newAlphas = new float[getChildCount()];
1649742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka            final float[] newRotationYs = new float[getChildCount()];
1650742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka
1651b0f28bd9a52fa4e343c8299d1c3e225d8e01c1e9Michael Jurka            for (int i = 0; i < screenCount; i++) {
16527247f6315baf16eacb3286f21bd80321385c1defPatrick Dubroy                final CellLayout cl = (CellLayout)getChildAt(i);
1653785d2eb2b8d7072c8124300dd9168ff51a91cf38Winson Chung                float finalAlphaValue = 0f;
1654785d2eb2b8d7072c8124300dd9168ff51a91cf38Winson Chung                float rotation = 0f;
1655a2eb17095dcffa75c1e9681fdc318fe6e0564321Michael Jurka                if (LauncherApplication.isScreenLarge()) {
1656785d2eb2b8d7072c8124300dd9168ff51a91cf38Winson Chung                    finalAlphaValue = (i == mCurrentPage) ? 1.0f : 0.0f;
1657785d2eb2b8d7072c8124300dd9168ff51a91cf38Winson Chung
1658785d2eb2b8d7072c8124300dd9168ff51a91cf38Winson Chung                    if (i < mCurrentPage) {
1659785d2eb2b8d7072c8124300dd9168ff51a91cf38Winson Chung                        rotation = WORKSPACE_ROTATION;
1660785d2eb2b8d7072c8124300dd9168ff51a91cf38Winson Chung                    } else if (i > mCurrentPage) {
1661785d2eb2b8d7072c8124300dd9168ff51a91cf38Winson Chung                        rotation = -WORKSPACE_ROTATION;
1662785d2eb2b8d7072c8124300dd9168ff51a91cf38Winson Chung                    }
1663785d2eb2b8d7072c8124300dd9168ff51a91cf38Winson Chung                } else {
1664785d2eb2b8d7072c8124300dd9168ff51a91cf38Winson Chung                    // Don't hide the side panes on the phone if we don't also update the side pages
1665785d2eb2b8d7072c8124300dd9168ff51a91cf38Winson Chung                    // alpha.  See screenScrolled().
1666785d2eb2b8d7072c8124300dd9168ff51a91cf38Winson Chung                    finalAlphaValue = 1f;
1667785d2eb2b8d7072c8124300dd9168ff51a91cf38Winson Chung                }
1668b26f3d6a8c62e7c1a603b6c7979375d8dd4f20d4Winson Chung                float finalAlphaMultiplierValue = 1f;
1669f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen
167063257c110a4ee54d5e8872c471cce254cf613c7aWinson Chung                float translation = 0f;
167163257c110a4ee54d5e8872c471cce254cf613c7aWinson Chung
167263257c110a4ee54d5e8872c471cce254cf613c7aWinson Chung                // If the screen is not xlarge, then don't rotate the CellLayouts
167363257c110a4ee54d5e8872c471cce254cf613c7aWinson Chung                // NOTE: If we don't update the side pages alpha, then we should not hide the side
167463257c110a4ee54d5e8872c471cce254cf613c7aWinson Chung                //       pages. see unshrink().
1675a2eb17095dcffa75c1e9681fdc318fe6e0564321Michael Jurka                if (LauncherApplication.isScreenLarge()) {
167663257c110a4ee54d5e8872c471cce254cf613c7aWinson Chung                    translation = getOffsetXForRotation(rotation, cl.getWidth(), cl.getHeight());
167763257c110a4ee54d5e8872c471cce254cf613c7aWinson Chung                }
1678cbbaf9862aa160c5e397cb49b554de20981a35feAdam Cohen
1679742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                oldAlphas[i] = cl.getAlpha();
1680742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                newAlphas[i] = finalAlphaValue;
16813e5ad58a6885273a60f8eb77aa9aee965eecdb2cMichael Jurka                if (animated) {
1682742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                    oldTranslationXs[i] = cl.getTranslationX();
1683742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                    oldTranslationYs[i] = cl.getTranslationY();
1684742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                    oldScaleXs[i] = cl.getScaleX();
1685742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                    oldScaleYs[i] = cl.getScaleY();
1686742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                    oldBackgroundAlphas[i] = cl.getBackgroundAlpha();
1687742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                    oldBackgroundAlphaMultipliers[i] = cl.getBackgroundAlphaMultiplier();
1688742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                    oldRotationYs[i] = cl.getRotationY();
1689742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka
1690742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                    newTranslationXs[i] = translation;
1691742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                    newTranslationYs[i] = 0f;
1692742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                    newScaleXs[i] = finalScaleFactor;
1693742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                    newScaleYs[i] = finalScaleFactor;
1694742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                    newBackgroundAlphas[i] = finalBackgroundAlpha;
1695742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                    newBackgroundAlphaMultipliers[i] = finalAlphaMultiplierValue;
1696742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                    newRotationYs[i] = rotation;
16974cb3724a2c1e5f278e1531d643accc40fcd8e219Michael Jurka                } else {
16986b879f0a5885274a85333531e091283405d490ccAdam Lesinski                    cl.setTranslationX(translation);
16994cb3724a2c1e5f278e1531d643accc40fcd8e219Michael Jurka                    cl.setTranslationY(0.0f);
1700d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka                    cl.setScaleX(finalScaleFactor);
1701d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka                    cl.setScaleY(finalScaleFactor);
17025f1c509d5ad1954a7e38e77db4d5f27c7345fd39Michael Jurka                    cl.setBackgroundAlpha(0.0f);
1703ae222ab933a8d035394618e3782dd529cf328f08Winson Chung                    cl.setBackgroundAlphaMultiplier(finalAlphaMultiplierValue);
1704f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen                    cl.setAlpha(finalAlphaValue);
1705f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen                    cl.setRotationY(rotation);
17063e5ad58a6885273a60f8eb77aa9aee965eecdb2cMichael Jurka                    mUnshrinkAnimationListener.onAnimationEnd(null);
17074cb3724a2c1e5f278e1531d643accc40fcd8e219Michael Jurka                }
1708b0f28bd9a52fa4e343c8299d1c3e225d8e01c1e9Michael Jurka            }
1709ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka            Display display = mLauncher.getWindowManager().getDefaultDisplay();
1710ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka            boolean isLandscape = display.getWidth() > display.getHeight();
1711ff0e01b65dac8861d0a319fb643c67f8a573aa97Michael Jurka            // on phones, don't scroll the wallpaper horizontally or vertically when switching
1712ff0e01b65dac8861d0a319fb643c67f8a573aa97Michael Jurka            // to/from all apps
1713ff0e01b65dac8861d0a319fb643c67f8a573aa97Michael Jurka            final boolean enableWallpaperEffects =
1714ff0e01b65dac8861d0a319fb643c67f8a573aa97Michael Jurka                isHardwareAccelerated() && LauncherApplication.isScreenLarge();
1715b46a2d130b3d04df830402d579060b63db559ae3Winson Chung            if (enableWallpaperEffects) {
1716b46a2d130b3d04df830402d579060b63db559ae3Winson Chung                switch (mShrinkState) {
1717b46a2d130b3d04df830402d579060b63db559ae3Winson Chung                    // animating out
1718b46a2d130b3d04df830402d579060b63db559ae3Winson Chung                    case MIDDLE:
1719b46a2d130b3d04df830402d579060b63db559ae3Winson Chung                    case SPRING_LOADED:
1720b46a2d130b3d04df830402d579060b63db559ae3Winson Chung                        if (animated) {
1721b46a2d130b3d04df830402d579060b63db559ae3Winson Chung                            mWallpaperOffset.setHorizontalCatchupConstant(isLandscape ? 0.49f : 0.46f);
1722b46a2d130b3d04df830402d579060b63db559ae3Winson Chung                            mWallpaperOffset.setVerticalCatchupConstant(isLandscape ? 0.49f : 0.46f);
1723b46a2d130b3d04df830402d579060b63db559ae3Winson Chung                            mWallpaperOffset.setOverrideHorizontalCatchupConstant(true);
1724b46a2d130b3d04df830402d579060b63db559ae3Winson Chung                        }
1725b46a2d130b3d04df830402d579060b63db559ae3Winson Chung                        break;
1726b46a2d130b3d04df830402d579060b63db559ae3Winson Chung                    case BOTTOM_HIDDEN:
1727b46a2d130b3d04df830402d579060b63db559ae3Winson Chung                    case BOTTOM_VISIBLE:
1728b46a2d130b3d04df830402d579060b63db559ae3Winson Chung                        // all apps
1729b46a2d130b3d04df830402d579060b63db559ae3Winson Chung                        if (animated) {
1730b46a2d130b3d04df830402d579060b63db559ae3Winson Chung                            mWallpaperOffset.setHorizontalCatchupConstant(isLandscape ? 0.65f : 0.65f);
1731b46a2d130b3d04df830402d579060b63db559ae3Winson Chung                            mWallpaperOffset.setVerticalCatchupConstant(isLandscape ? 0.65f : 0.65f);
1732b46a2d130b3d04df830402d579060b63db559ae3Winson Chung                            mWallpaperOffset.setOverrideHorizontalCatchupConstant(true);
1733b46a2d130b3d04df830402d579060b63db559ae3Winson Chung                        }
1734b46a2d130b3d04df830402d579060b63db559ae3Winson Chung                        break;
1735b46a2d130b3d04df830402d579060b63db559ae3Winson Chung                }
1736ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka            }
1737ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            if (animated) {
1738742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                ValueAnimator animWithInterpolator =
1739742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                    ValueAnimator.ofFloat(0f, 1f).setDuration(duration);
1740742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                animWithInterpolator.setInterpolator(mZoomInInterpolator);
1741742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka
174263257c110a4ee54d5e8872c471cce254cf613c7aWinson Chung                final float oldHorizontalWallpaperOffset = enableWallpaperEffects ?
174363257c110a4ee54d5e8872c471cce254cf613c7aWinson Chung                        getHorizontalWallpaperOffset() : 0;
174463257c110a4ee54d5e8872c471cce254cf613c7aWinson Chung                final float oldVerticalWallpaperOffset = enableWallpaperEffects ?
174563257c110a4ee54d5e8872c471cce254cf613c7aWinson Chung                        getVerticalWallpaperOffset() : 0;
174663257c110a4ee54d5e8872c471cce254cf613c7aWinson Chung                final float newHorizontalWallpaperOffset = enableWallpaperEffects ?
174763257c110a4ee54d5e8872c471cce254cf613c7aWinson Chung                        wallpaperOffsetForCurrentScroll() : 0;
174863257c110a4ee54d5e8872c471cce254cf613c7aWinson Chung                final float newVerticalWallpaperOffset = enableWallpaperEffects ? 0.5f : 0;
1749c2e26a028d1829bdddb1e47aac12951e12ef83e0Michael Jurka                animWithInterpolator.addUpdateListener(new LauncherAnimatorUpdateListener() {
1750c2e26a028d1829bdddb1e47aac12951e12ef83e0Michael Jurka                    public void onAnimationUpdate(float a, float b) {
1751c4e772e4b3f21bde342e475ebc49b5b76b8f74e8Michael Jurka                        if (b == 0f) {
1752c4e772e4b3f21bde342e475ebc49b5b76b8f74e8Michael Jurka                            // an optimization, but not required
1753c4e772e4b3f21bde342e475ebc49b5b76b8f74e8Michael Jurka                            return;
1754c4e772e4b3f21bde342e475ebc49b5b76b8f74e8Michael Jurka                        }
1755280969cd77da6c0e712a45287ae436bfc42a5401Michael Jurka                        invalidate();
1756b46a2d130b3d04df830402d579060b63db559ae3Winson Chung                        if (enableWallpaperEffects) {
1757b46a2d130b3d04df830402d579060b63db559ae3Winson Chung                            setHorizontalWallpaperOffset(a * oldHorizontalWallpaperOffset
1758b46a2d130b3d04df830402d579060b63db559ae3Winson Chung                                    + b * newHorizontalWallpaperOffset);
1759b46a2d130b3d04df830402d579060b63db559ae3Winson Chung                            setVerticalWallpaperOffset(a * oldVerticalWallpaperOffset
1760b46a2d130b3d04df830402d579060b63db559ae3Winson Chung                                    + b * newVerticalWallpaperOffset);
1761b46a2d130b3d04df830402d579060b63db559ae3Winson Chung                        }
1762742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                        for (int i = 0; i < screenCount; i++) {
1763742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                            final CellLayout cl = (CellLayout) getChildAt(i);
1764742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                            cl.fastInvalidate();
1765742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                            cl.setFastTranslationX(
1766742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                                    a * oldTranslationXs[i] + b * newTranslationXs[i]);
1767742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                            cl.setFastTranslationY(
1768742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                                    a * oldTranslationYs[i] + b * newTranslationYs[i]);
1769742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                            cl.setFastScaleX(a * oldScaleXs[i] + b * newScaleXs[i]);
1770742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                            cl.setFastScaleY(a * oldScaleYs[i] + b * newScaleYs[i]);
1771742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                            cl.setFastBackgroundAlpha(
1772742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                                    a * oldBackgroundAlphas[i] + b * newBackgroundAlphas[i]);
1773742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                            cl.setBackgroundAlphaMultiplier(a * oldBackgroundAlphaMultipliers[i] +
1774742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                                    b * newBackgroundAlphaMultipliers[i]);
1775742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                            cl.setFastAlpha(a * oldAlphas[i] + b * newAlphas[i]);
1776742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                        }
1777742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                    }
1778742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                });
1779742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka
1780742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                ValueAnimator rotationAnim =
1781742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                    ValueAnimator.ofFloat(0f, 1f).setDuration(duration);
1782742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                rotationAnim.setInterpolator(new DecelerateInterpolator(2.0f));
1783c2e26a028d1829bdddb1e47aac12951e12ef83e0Michael Jurka                rotationAnim.addUpdateListener(new LauncherAnimatorUpdateListener() {
1784c2e26a028d1829bdddb1e47aac12951e12ef83e0Michael Jurka                    public void onAnimationUpdate(float a, float b) {
1785742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                        // don't invalidate workspace because we did it above
1786c4e772e4b3f21bde342e475ebc49b5b76b8f74e8Michael Jurka                        if (b == 0f) {
1787c4e772e4b3f21bde342e475ebc49b5b76b8f74e8Michael Jurka                            // an optimization, but not required
1788c4e772e4b3f21bde342e475ebc49b5b76b8f74e8Michael Jurka                            return;
1789c4e772e4b3f21bde342e475ebc49b5b76b8f74e8Michael Jurka                        }
1790742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                        for (int i = 0; i < screenCount; i++) {
1791742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                            final CellLayout cl = (CellLayout) getChildAt(i);
1792742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                            cl.setFastRotationY(a * oldRotationYs[i] + b * newRotationYs[i]);
1793742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                        }
1794742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                    }
1795742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                });
17966b879f0a5885274a85333531e091283405d490ccAdam Lesinski
1797742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                mAnimator.playTogether(animWithInterpolator, rotationAnim);
1798c86756c20196e5c907df01fe0fc9193ffb934082Michael Jurka                // If we call this when we're not animated, onAnimationEnd is never called on
1799c86756c20196e5c907df01fe0fc9193ffb934082Michael Jurka                // the listener; make sure we only use the listener when we're actually animating
18003c4c20fbe682cb4b3ef94f09afe0af09171583f3Michael Jurka                mAnimator.addListener(mUnshrinkAnimationListener);
18013c4c20fbe682cb4b3ef94f09afe0af09171583f3Michael Jurka                mAnimator.start();
1802ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka            } else {
1803b46a2d130b3d04df830402d579060b63db559ae3Winson Chung                if (enableWallpaperEffects) {
1804b46a2d130b3d04df830402d579060b63db559ae3Winson Chung                    setHorizontalWallpaperOffset(wallpaperOffsetForCurrentScroll());
1805b46a2d130b3d04df830402d579060b63db559ae3Winson Chung                    setVerticalWallpaperOffset(0.5f);
1806b46a2d130b3d04df830402d579060b63db559ae3Winson Chung                    updateWallpaperOffsetImmediately();
1807b46a2d130b3d04df830402d579060b63db559ae3Winson Chung                }
1808c86756c20196e5c907df01fe0fc9193ffb934082Michael Jurka            }
1809dee0589388ba0f6373912e18bf86243282fb3b9bMichael Jurka        }
18108d006d5e144ae33e509ea42e0b9760ef6c5bc884Winson Chung
1811557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung        hideBackgroundGradient(springLoaded ? getResources().getInteger(
1812557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung                R.integer.config_appsCustomizeSpringLoadedBgAlpha) / 100f : 0f);
1813dee0589388ba0f6373912e18bf86243282fb3b9bMichael Jurka    }
1814dee0589388ba0f6373912e18bf86243282fb3b9bMichael Jurka
18154be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato    /**
18164be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato     * Draw the View v into the given Canvas.
18174be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato     *
18184be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato     * @param v the view to draw
18194be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato     * @param destCanvas the canvas to draw on
18204be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato     * @param padding the horizontal and vertical padding to use when drawing
18214be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato     */
1822ac8c87687b8e063c981f28cb31bab2cc110f26ccAdam Cohen    private void drawDragView(View v, Canvas destCanvas, int padding, boolean pruneToDrawable) {
18234be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato        final Rect clipRect = mTempRect;
18244be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato        v.getDrawingRect(clipRect);
18254be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato
1826ac8c87687b8e063c981f28cb31bab2cc110f26ccAdam Cohen        destCanvas.save();
1827ac8c87687b8e063c981f28cb31bab2cc110f26ccAdam Cohen        if (v instanceof TextView && pruneToDrawable) {
1828ac8c87687b8e063c981f28cb31bab2cc110f26ccAdam Cohen            Drawable d = ((TextView) v).getCompoundDrawables()[1];
1829ac8c87687b8e063c981f28cb31bab2cc110f26ccAdam Cohen            clipRect.set(0, 0, d.getIntrinsicWidth() + padding, d.getIntrinsicHeight() + padding);
1830ac8c87687b8e063c981f28cb31bab2cc110f26ccAdam Cohen            destCanvas.translate(padding / 2, padding / 2);
1831ac8c87687b8e063c981f28cb31bab2cc110f26ccAdam Cohen            d.draw(destCanvas);
1832ac8c87687b8e063c981f28cb31bab2cc110f26ccAdam Cohen        } else {
1833ac8c87687b8e063c981f28cb31bab2cc110f26ccAdam Cohen            if (v instanceof FolderIcon) {
1834ac8c87687b8e063c981f28cb31bab2cc110f26ccAdam Cohen                clipRect.bottom = getResources().getDimensionPixelSize(R.dimen.folder_preview_size);
1835ac8c87687b8e063c981f28cb31bab2cc110f26ccAdam Cohen            } else if (v instanceof BubbleTextView) {
1836ac8c87687b8e063c981f28cb31bab2cc110f26ccAdam Cohen                final BubbleTextView tv = (BubbleTextView) v;
1837ac8c87687b8e063c981f28cb31bab2cc110f26ccAdam Cohen                clipRect.bottom = tv.getExtendedPaddingTop() - (int) BubbleTextView.PADDING_V +
1838ac8c87687b8e063c981f28cb31bab2cc110f26ccAdam Cohen                        tv.getLayout().getLineTop(0);
1839ac8c87687b8e063c981f28cb31bab2cc110f26ccAdam Cohen            } else if (v instanceof TextView) {
1840ac8c87687b8e063c981f28cb31bab2cc110f26ccAdam Cohen                final TextView tv = (TextView) v;
1841ac8c87687b8e063c981f28cb31bab2cc110f26ccAdam Cohen                clipRect.bottom = tv.getExtendedPaddingTop() - tv.getCompoundDrawablePadding() +
1842ac8c87687b8e063c981f28cb31bab2cc110f26ccAdam Cohen                        tv.getLayout().getLineTop(0);
1843ac8c87687b8e063c981f28cb31bab2cc110f26ccAdam Cohen            }
1844ac8c87687b8e063c981f28cb31bab2cc110f26ccAdam Cohen            destCanvas.translate(-v.getScrollX() + padding / 2, -v.getScrollY() + padding / 2);
1845ac8c87687b8e063c981f28cb31bab2cc110f26ccAdam Cohen            destCanvas.clipRect(clipRect, Op.REPLACE);
1846ac8c87687b8e063c981f28cb31bab2cc110f26ccAdam Cohen            v.draw(destCanvas);
18474be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato        }
1848ac8c87687b8e063c981f28cb31bab2cc110f26ccAdam Cohen        destCanvas.restore();
1849ac8c87687b8e063c981f28cb31bab2cc110f26ccAdam Cohen    }
18504be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato
1851ac8c87687b8e063c981f28cb31bab2cc110f26ccAdam Cohen    /**
1852ac8c87687b8e063c981f28cb31bab2cc110f26ccAdam Cohen     * Returns a new bitmap to show when the given View is being dragged around.
1853ac8c87687b8e063c981f28cb31bab2cc110f26ccAdam Cohen     * Responsibility for the bitmap is transferred to the caller.
1854ac8c87687b8e063c981f28cb31bab2cc110f26ccAdam Cohen     */
1855ac8c87687b8e063c981f28cb31bab2cc110f26ccAdam Cohen    public Bitmap createDragBitmap(View v, Canvas canvas, int padding) {
1856ac8c87687b8e063c981f28cb31bab2cc110f26ccAdam Cohen        final int outlineColor = getResources().getColor(R.color.drag_outline_color);
1857ac8c87687b8e063c981f28cb31bab2cc110f26ccAdam Cohen        Bitmap b;
18584be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato
1859ac8c87687b8e063c981f28cb31bab2cc110f26ccAdam Cohen        if (v instanceof TextView) {
1860ac8c87687b8e063c981f28cb31bab2cc110f26ccAdam Cohen            Drawable d = ((TextView) v).getCompoundDrawables()[1];
1861ac8c87687b8e063c981f28cb31bab2cc110f26ccAdam Cohen            b = Bitmap.createBitmap(d.getIntrinsicWidth() + padding,
1862ac8c87687b8e063c981f28cb31bab2cc110f26ccAdam Cohen                    d.getIntrinsicHeight() + padding, Bitmap.Config.ARGB_8888);
1863ac8c87687b8e063c981f28cb31bab2cc110f26ccAdam Cohen        } else {
1864ac8c87687b8e063c981f28cb31bab2cc110f26ccAdam Cohen            b = Bitmap.createBitmap(
1865ac8c87687b8e063c981f28cb31bab2cc110f26ccAdam Cohen                    v.getWidth() + padding, v.getHeight() + padding, Bitmap.Config.ARGB_8888);
1866ac8c87687b8e063c981f28cb31bab2cc110f26ccAdam Cohen        }
1867ac8c87687b8e063c981f28cb31bab2cc110f26ccAdam Cohen
1868ac8c87687b8e063c981f28cb31bab2cc110f26ccAdam Cohen        canvas.setBitmap(b);
1869ac8c87687b8e063c981f28cb31bab2cc110f26ccAdam Cohen        drawDragView(v, canvas, padding, true);
1870ac8c87687b8e063c981f28cb31bab2cc110f26ccAdam Cohen        mOutlineHelper.applyOuterBlur(b, canvas, outlineColor);
1871ac8c87687b8e063c981f28cb31bab2cc110f26ccAdam Cohen
1872ac8c87687b8e063c981f28cb31bab2cc110f26ccAdam Cohen        return b;
18734be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato    }
18744be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato
18754be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato    /**
18764be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato     * Returns a new bitmap to be used as the object outline, e.g. to visualize the drop location.
18774be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato     * Responsibility for the bitmap is transferred to the caller.
18784be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato     */
18794be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato    private Bitmap createDragOutline(View v, Canvas canvas, int padding) {
18804be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato        final int outlineColor = getResources().getColor(R.color.drag_outline_color);
18814be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato        final Bitmap b = Bitmap.createBitmap(
18824be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato                v.getWidth() + padding, v.getHeight() + padding, Bitmap.Config.ARGB_8888);
18834be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato
18844be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato        canvas.setBitmap(b);
1885ac8c87687b8e063c981f28cb31bab2cc110f26ccAdam Cohen        drawDragView(v, canvas, padding, false);
18865bb50bdb13f5fc22f5febd9480e78222b26c6fe7Adam Cohen        mOutlineHelper.applyMediumExpensiveOutlineWithBlur(b, canvas, outlineColor, outlineColor);
18874be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato        return b;
18884be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato    }
18894be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato
18904be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato    /**
1891d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka     * Returns a new bitmap to be used as the object outline, e.g. to visualize the drop location.
1892d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka     * Responsibility for the bitmap is transferred to the caller.
1893d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka     */
1894f12c75cb48f87955600c56ccbe0aac84b0c11b28Michael Jurka    private Bitmap createDragOutline(Bitmap orig, Canvas canvas, int padding, int w, int h) {
1895d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka        final int outlineColor = getResources().getColor(R.color.drag_outline_color);
1896f12c75cb48f87955600c56ccbe0aac84b0c11b28Michael Jurka        final Bitmap b = Bitmap.createBitmap(w, h, Bitmap.Config.ARGB_8888);
1897d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka        canvas.setBitmap(b);
1898f12c75cb48f87955600c56ccbe0aac84b0c11b28Michael Jurka
1899f12c75cb48f87955600c56ccbe0aac84b0c11b28Michael Jurka        Rect src = new Rect(0, 0, orig.getWidth(), orig.getHeight());
1900f12c75cb48f87955600c56ccbe0aac84b0c11b28Michael Jurka        float scaleFactor = Math.min((w - padding) / (float) orig.getWidth(),
1901f12c75cb48f87955600c56ccbe0aac84b0c11b28Michael Jurka                (h - padding) / (float) orig.getHeight());
1902f12c75cb48f87955600c56ccbe0aac84b0c11b28Michael Jurka        int scaledWidth = (int) (scaleFactor * orig.getWidth());
1903f12c75cb48f87955600c56ccbe0aac84b0c11b28Michael Jurka        int scaledHeight = (int) (scaleFactor * orig.getHeight());
1904f12c75cb48f87955600c56ccbe0aac84b0c11b28Michael Jurka        Rect dst = new Rect(0, 0, scaledWidth, scaledHeight);
1905f12c75cb48f87955600c56ccbe0aac84b0c11b28Michael Jurka
1906f12c75cb48f87955600c56ccbe0aac84b0c11b28Michael Jurka        // center the image
1907f12c75cb48f87955600c56ccbe0aac84b0c11b28Michael Jurka        dst.offset((w - scaledWidth) / 2, (h - scaledHeight) / 2);
1908f12c75cb48f87955600c56ccbe0aac84b0c11b28Michael Jurka
1909f12c75cb48f87955600c56ccbe0aac84b0c11b28Michael Jurka        Paint p = new Paint();
1910f12c75cb48f87955600c56ccbe0aac84b0c11b28Michael Jurka        p.setFilterBitmap(true);
1911f12c75cb48f87955600c56ccbe0aac84b0c11b28Michael Jurka        canvas.drawBitmap(orig, src, dst, p);
1912d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka        mOutlineHelper.applyMediumExpensiveOutlineWithBlur(b, canvas, outlineColor, outlineColor);
1913d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka
1914d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka        return b;
1915d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka    }
1916d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka
1917d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka    /**
1918a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung     * Creates a drag outline to represent a drop (that we don't have the actual information for
1919a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung     * yet).  May be changed in the future to alter the drop outline slightly depending on the
1920a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung     * clip description mime data.
1921a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung     */
1922a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung    private Bitmap createExternalDragOutline(Canvas canvas, int padding) {
1923a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung        Resources r = getResources();
1924a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung        final int outlineColor = r.getColor(R.color.drag_outline_color);
1925a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung        final int iconWidth = r.getDimensionPixelSize(R.dimen.workspace_cell_width);
1926a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung        final int iconHeight = r.getDimensionPixelSize(R.dimen.workspace_cell_height);
1927a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung        final int rectRadius = r.getDimensionPixelSize(R.dimen.external_drop_icon_rect_radius);
1928a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung        final int inset = (int) (Math.min(iconWidth, iconHeight) * 0.2f);
1929a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung        final Bitmap b = Bitmap.createBitmap(
1930a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung                iconWidth + padding, iconHeight + padding, Bitmap.Config.ARGB_8888);
1931a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung
1932a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung        canvas.setBitmap(b);
1933a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung        canvas.drawRoundRect(new RectF(inset, inset, iconWidth - inset, iconHeight - inset),
1934a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung                rectRadius, rectRadius, mExternalDragOutlinePaint);
19355bb50bdb13f5fc22f5febd9480e78222b26c6fe7Adam Cohen        mOutlineHelper.applyMediumExpensiveOutlineWithBlur(b, canvas, outlineColor, outlineColor);
1936a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung        return b;
1937a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung    }
1938a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung
193931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    void startDrag(CellLayout.CellInfo cellInfo) {
194031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        View child = cellInfo.cell;
1941aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung
194231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        // Make sure the drag was started by a long press as opposed to a long click.
19437984c9496bcaeca23ee7fdecc4d4f1bb2467e0f2Bjorn Bringert        if (!child.isInTouchMode()) {
194431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            return;
194531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
1946aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung
194731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        mDragInfo = cellInfo;
194831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
19490c10bb4a56a8dd06e4ddd9830bd279fdaf4a8df7Patrick Dubroy        CellLayout current = (CellLayout) getChildAt(cellInfo.screen);
195031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        current.onDragChild(child);
19514be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato
19524be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato        child.clearFocus();
19534be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato        child.setPressed(false);
19544be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato
19554be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato        final Canvas canvas = new Canvas();
19564be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato
19578e58e916061cbe2623697efac0924f2aa3753a92Patrick Dubroy        // We need to add extra padding to the bitmap to make room for the glow effect
195838b4f7c5eab773ad36048b5ab8713750dcaaf748Michael Jurka        final int bitmapPadding = HolographicOutlineHelper.MAX_OUTER_BLUR_RADIUS;
19598e58e916061cbe2623697efac0924f2aa3753a92Patrick Dubroy
19604be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato        // The outline is used to visualize where the item will land if dropped
19618e58e916061cbe2623697efac0924f2aa3753a92Patrick Dubroy        mDragOutline = createDragOutline(child, canvas, bitmapPadding);
1962ac8c87687b8e063c981f28cb31bab2cc110f26ccAdam Cohen        beginDragShared(child, this);
1963ac8c87687b8e063c981f28cb31bab2cc110f26ccAdam Cohen    }
1964ac8c87687b8e063c981f28cb31bab2cc110f26ccAdam Cohen
1965ac8c87687b8e063c981f28cb31bab2cc110f26ccAdam Cohen    public void beginDragShared(View child, DragSource source) {
1966ac8c87687b8e063c981f28cb31bab2cc110f26ccAdam Cohen        // We need to add extra padding to the bitmap to make room for the glow effect
1967ac8c87687b8e063c981f28cb31bab2cc110f26ccAdam Cohen        final int bitmapPadding = HolographicOutlineHelper.MAX_OUTER_BLUR_RADIUS;
19684be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato
19694be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato        // The drag bitmap follows the touch point around on the screen
1970ac8c87687b8e063c981f28cb31bab2cc110f26ccAdam Cohen        final Bitmap b = createDragBitmap(child, new Canvas(), bitmapPadding);
19714be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato
19724be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato        final int bmpWidth = b.getWidth();
19734be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato        final int bmpHeight = b.getHeight();
1974e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen
19758dfcba4af7a7ece09e8c7d96053e54f3a383e905Adam Cohen        mLauncher.getDragLayer().getLocationInDragLayer(child, mTempXY);
19768dfcba4af7a7ece09e8c7d96053e54f3a383e905Adam Cohen        final int dragLayerX = (int) mTempXY[0] + (child.getWidth() - bmpWidth) / 2;
19778dfcba4af7a7ece09e8c7d96053e54f3a383e905Adam Cohen        final int dragLayerY = (int) mTempXY[1] + (child.getHeight() - bmpHeight) / 2;
1978e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen
1979e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen        Rect dragRect = null;
19800e4857c302da6adbd45231d7a8bae0289fa33250Adam Cohen        if (child instanceof BubbleTextView) {
1981e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen            int iconSize = getResources().getDimensionPixelSize(R.dimen.app_icon_size);
1982e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen            int top = child.getPaddingTop();
1983e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen            int left = (bmpWidth - iconSize) / 2;
1984e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen            int right = left + iconSize;
1985e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen            int bottom = top + iconSize;
1986e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen            dragRect = new Rect(left, top, right, bottom);
19870e4857c302da6adbd45231d7a8bae0289fa33250Adam Cohen        } else if (child instanceof FolderIcon) {
19880e4857c302da6adbd45231d7a8bae0289fa33250Adam Cohen            int previewSize = getResources().getDimensionPixelSize(R.dimen.folder_preview_size);
19890e4857c302da6adbd45231d7a8bae0289fa33250Adam Cohen            dragRect = new Rect(0, 0, child.getWidth(), previewSize);
1990e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen        }
1991e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen
1992ac8c87687b8e063c981f28cb31bab2cc110f26ccAdam Cohen        mDragController.startDrag(b, dragLayerX, dragLayerY, source, child.getTag(),
1993e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen                DragController.DRAG_ACTION_MOVE, dragRect);
19944be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato        b.recycle();
1995ac8c87687b8e063c981f28cb31bab2cc110f26ccAdam Cohen        mLauncher.lockScreenOrientation();
199631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
199731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
19980280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka    void addApplicationShortcut(ShortcutInfo info, int screen, int cellX, int cellY,
19990280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka            boolean insertAtFirst, int intersectX, int intersectY) {
20000280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka        final CellLayout cellLayout = (CellLayout) getChildAt(screen);
20010280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka        View view = mLauncher.createShortcut(R.layout.application, cellLayout, (ShortcutInfo) info);
200231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
20030280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka        final int[] cellXY = new int[2];
20040280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka        cellLayout.findCellForSpanThatIntersects(cellXY, 1, 1, intersectX, intersectY);
20050280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka        addInScreen(view, screen, cellXY[0], cellXY[1], 1, 1, insertAtFirst);
20060280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka        LauncherModel.addOrMoveItemInDatabase(mLauncher, info,
20070280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka                LauncherSettings.Favorites.CONTAINER_DESKTOP, screen,
20080280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka                cellXY[0], cellXY[1]);
200931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
201031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
2011cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy    /**
2012cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy     * {@inheritDoc}
2013cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy     */
2014cb3382b1bfe1a534b1b44f5c4def9b2db605ac90Adam Cohen    public boolean acceptDrop(DragObject d) {
2015cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy        // If it's an external drop (e.g. from All Apps), check if it should be accepted
2016cb3382b1bfe1a534b1b44f5c4def9b2db605ac90Adam Cohen        if (d.dragSource != this) {
2017cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy            // Don't accept the drop if we're not over a screen at time of drop
2018a65beeea13c18c443f15f8d51c4c6e153a6c4ef9Adam Cohen            if (mDragTargetLayout == null) {
2019cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy                return false;
2020cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy            }
2021cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy
2022a65beeea13c18c443f15f8d51c4c6e153a6c4ef9Adam Cohen            mDragViewVisualCenter = getDragViewVisualCenter(d.x, d.y, d.xOffset, d.yOffset,
2023a65beeea13c18c443f15f8d51c4c6e153a6c4ef9Adam Cohen                    d.dragView, mDragViewVisualCenter);
2024a65beeea13c18c443f15f8d51c4c6e153a6c4ef9Adam Cohen
2025557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung            int spanX = 1;
2026557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung            int spanY = 1;
2027557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung            View ignoreView = null;
2028557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung            if (mDragInfo != null) {
2029557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung                final CellLayout.CellInfo dragCellInfo = mDragInfo;
2030557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung                spanX = dragCellInfo.spanX;
2031557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung                spanY = dragCellInfo.spanY;
2032557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung                ignoreView = dragCellInfo.cell;
2033557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung            } else {
2034557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung                final ItemInfo dragInfo = (ItemInfo) d.dragInfo;
2035557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung                spanX = dragInfo.spanX;
2036557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung                spanY = dragInfo.spanY;
2037557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung            }
2038cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy
2039a65beeea13c18c443f15f8d51c4c6e153a6c4ef9Adam Cohen            mTargetCell = findNearestArea((int) mDragViewVisualCenter[0],
2040a65beeea13c18c443f15f8d51c4c6e153a6c4ef9Adam Cohen                    (int) mDragViewVisualCenter[1], spanX, spanY, mDragTargetLayout, mTargetCell);
2041a65beeea13c18c443f15f8d51c4c6e153a6c4ef9Adam Cohen
2042a65beeea13c18c443f15f8d51c4c6e153a6c4ef9Adam Cohen            if (willCreateUserFolder((ItemInfo) d.dragInfo, mDragTargetLayout, mTargetCell, true)) {
2043a65beeea13c18c443f15f8d51c4c6e153a6c4ef9Adam Cohen                return true;
2044a65beeea13c18c443f15f8d51c4c6e153a6c4ef9Adam Cohen            }
2045a65beeea13c18c443f15f8d51c4c6e153a6c4ef9Adam Cohen            if (willAddToExistingUserFolder((ItemInfo) d.dragInfo, mDragTargetLayout,
2046a65beeea13c18c443f15f8d51c4c6e153a6c4ef9Adam Cohen                    mTargetCell)) {
2047a65beeea13c18c443f15f8d51c4c6e153a6c4ef9Adam Cohen                return true;
2048a65beeea13c18c443f15f8d51c4c6e153a6c4ef9Adam Cohen            }
2049a65beeea13c18c443f15f8d51c4c6e153a6c4ef9Adam Cohen
2050cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy
2051cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy            // Don't accept the drop if there's no room for the item
2052cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy            if (!mDragTargetLayout.findCellForSpanIgnoring(null, spanX, spanY, ignoreView)) {
2053cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy                mLauncher.showOutOfSpaceMessage();
2054cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy                return false;
2055cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy            }
2056cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy        }
2057cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy        return true;
2058cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy    }
2059cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy
2060a65beeea13c18c443f15f8d51c4c6e153a6c4ef9Adam Cohen    boolean willCreateUserFolder(ItemInfo info, CellLayout target, int[] targetCell,
2061a65beeea13c18c443f15f8d51c4c6e153a6c4ef9Adam Cohen            boolean considerTimeout) {
2062a65beeea13c18c443f15f8d51c4c6e153a6c4ef9Adam Cohen        View dropOverView = target.getChildAt(targetCell[0], targetCell[1]);
2063a65beeea13c18c443f15f8d51c4c6e153a6c4ef9Adam Cohen
2064c0dcf597084d00e4c23a7fea5fd0738f6c095a6bAdam Cohen        boolean hasntMoved = mDragInfo != null
2065c0dcf597084d00e4c23a7fea5fd0738f6c095a6bAdam Cohen                && (mDragInfo.cellX == targetCell[0] && mDragInfo.cellY == targetCell[1]);
2066e0310965022e7a1adb7ad489505d404186608689Adam Cohen
2067a65beeea13c18c443f15f8d51c4c6e153a6c4ef9Adam Cohen        if (dropOverView == null || hasntMoved || (considerTimeout && !mCreateUserFolderOnDrop)) {
2068a65beeea13c18c443f15f8d51c4c6e153a6c4ef9Adam Cohen            return false;
2069a65beeea13c18c443f15f8d51c4c6e153a6c4ef9Adam Cohen        }
2070e0310965022e7a1adb7ad489505d404186608689Adam Cohen
2071a65beeea13c18c443f15f8d51c4c6e153a6c4ef9Adam Cohen        boolean aboveShortcut = (dropOverView.getTag() instanceof ShortcutInfo);
2072e0310965022e7a1adb7ad489505d404186608689Adam Cohen        boolean willBecomeShortcut =
2073c0dcf597084d00e4c23a7fea5fd0738f6c095a6bAdam Cohen                (info.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPLICATION ||
2074c0dcf597084d00e4c23a7fea5fd0738f6c095a6bAdam Cohen                info.itemType == LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT);
2075e0310965022e7a1adb7ad489505d404186608689Adam Cohen
2076e0310965022e7a1adb7ad489505d404186608689Adam Cohen        return (aboveShortcut && willBecomeShortcut);
2077e0310965022e7a1adb7ad489505d404186608689Adam Cohen    }
2078e0310965022e7a1adb7ad489505d404186608689Adam Cohen
2079a65beeea13c18c443f15f8d51c4c6e153a6c4ef9Adam Cohen    boolean willAddToExistingUserFolder(Object dragInfo, CellLayout target, int[] targetCell) {
2080a65beeea13c18c443f15f8d51c4c6e153a6c4ef9Adam Cohen        View dropOverView = target.getChildAt(targetCell[0], targetCell[1]);
2081a65beeea13c18c443f15f8d51c4c6e153a6c4ef9Adam Cohen        if (dropOverView instanceof FolderIcon) {
2082a65beeea13c18c443f15f8d51c4c6e153a6c4ef9Adam Cohen            FolderIcon fi = (FolderIcon) dropOverView;
2083a65beeea13c18c443f15f8d51c4c6e153a6c4ef9Adam Cohen            if (fi.acceptDrop(dragInfo)) {
2084a65beeea13c18c443f15f8d51c4c6e153a6c4ef9Adam Cohen                return true;
2085a65beeea13c18c443f15f8d51c4c6e153a6c4ef9Adam Cohen            }
2086a65beeea13c18c443f15f8d51c4c6e153a6c4ef9Adam Cohen        }
2087a65beeea13c18c443f15f8d51c4c6e153a6c4ef9Adam Cohen        return false;
2088a65beeea13c18c443f15f8d51c4c6e153a6c4ef9Adam Cohen    }
2089a65beeea13c18c443f15f8d51c4c6e153a6c4ef9Adam Cohen
2090c0dcf597084d00e4c23a7fea5fd0738f6c095a6bAdam Cohen    boolean createUserFolderIfNecessary(View newView, CellLayout target,
2091557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung            int[] targetCell, boolean external, DragView dragView, Runnable postAnimationRunnable) {
2092c0dcf597084d00e4c23a7fea5fd0738f6c095a6bAdam Cohen        View v = target.getChildAt(targetCell[0], targetCell[1]);
2093c0dcf597084d00e4c23a7fea5fd0738f6c095a6bAdam Cohen        boolean hasntMoved = mDragInfo != null
2094c0dcf597084d00e4c23a7fea5fd0738f6c095a6bAdam Cohen                && (mDragInfo.cellX == targetCell[0] && mDragInfo.cellY == targetCell[1]);
209510b1737910ea7890ca95bbbe5363fd5aa513b856Adam Cohen
209619072da7441e07d5e90026d9e9e1b38f11245e44Adam Cohen        if (v == null || hasntMoved || !mCreateUserFolderOnDrop) return false;
209719072da7441e07d5e90026d9e9e1b38f11245e44Adam Cohen        mCreateUserFolderOnDrop = false;
2098c0dcf597084d00e4c23a7fea5fd0738f6c095a6bAdam Cohen        final int screen = (targetCell == null) ? mDragInfo.screen : indexOfChild(target);
209910b1737910ea7890ca95bbbe5363fd5aa513b856Adam Cohen
210010b1737910ea7890ca95bbbe5363fd5aa513b856Adam Cohen        boolean aboveShortcut = (v.getTag() instanceof ShortcutInfo);
210110b1737910ea7890ca95bbbe5363fd5aa513b856Adam Cohen        boolean willBecomeShortcut = (newView.getTag() instanceof ShortcutInfo);
210210b1737910ea7890ca95bbbe5363fd5aa513b856Adam Cohen
210310b1737910ea7890ca95bbbe5363fd5aa513b856Adam Cohen        if (aboveShortcut && willBecomeShortcut) {
210410b1737910ea7890ca95bbbe5363fd5aa513b856Adam Cohen            ShortcutInfo sourceInfo = (ShortcutInfo) newView.getTag();
210510b1737910ea7890ca95bbbe5363fd5aa513b856Adam Cohen            ShortcutInfo destInfo = (ShortcutInfo) v.getTag();
210610b1737910ea7890ca95bbbe5363fd5aa513b856Adam Cohen            // if the drag started here, we need to remove it from the workspace
210710b1737910ea7890ca95bbbe5363fd5aa513b856Adam Cohen            if (!external) {
210810b1737910ea7890ca95bbbe5363fd5aa513b856Adam Cohen                int fromScreen = mDragInfo.screen;
210910b1737910ea7890ca95bbbe5363fd5aa513b856Adam Cohen                CellLayout sourceLayout = (CellLayout) getChildAt(fromScreen);
211010b1737910ea7890ca95bbbe5363fd5aa513b856Adam Cohen                sourceLayout.removeView(newView);
211110b1737910ea7890ca95bbbe5363fd5aa513b856Adam Cohen            }
211210b1737910ea7890ca95bbbe5363fd5aa513b856Adam Cohen
2113d044526d82e7938cf35b296978d9d5302f98b4afAdam Cohen            Rect folderLocation = new Rect();
2114ac8c87687b8e063c981f28cb31bab2cc110f26ccAdam Cohen            float scale = mLauncher.getDragLayer().getDescendantRectRelativeToSelf(v, folderLocation);
211510b1737910ea7890ca95bbbe5363fd5aa513b856Adam Cohen            target.removeView(v);
2116d044526d82e7938cf35b296978d9d5302f98b4afAdam Cohen
2117c0dcf597084d00e4c23a7fea5fd0738f6c095a6bAdam Cohen            FolderIcon fi = mLauncher.addFolder(screen, targetCell[0], targetCell[1]);
2118a9cf38f533d1e86269868f1e6a806ccffd4a78fcAdam Cohen            destInfo.cellX = -1;
2119a9cf38f533d1e86269868f1e6a806ccffd4a78fcAdam Cohen            destInfo.cellY = -1;
2120a9cf38f533d1e86269868f1e6a806ccffd4a78fcAdam Cohen            sourceInfo.cellX = -1;
2121a9cf38f533d1e86269868f1e6a806ccffd4a78fcAdam Cohen            sourceInfo.cellY = -1;
2122d044526d82e7938cf35b296978d9d5302f98b4afAdam Cohen
2123ac8c87687b8e063c981f28cb31bab2cc110f26ccAdam Cohen            fi.performCreateAnimation(destInfo, v, sourceInfo, dragView, folderLocation, scale,
2124557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung                    postAnimationRunnable);
212510b1737910ea7890ca95bbbe5363fd5aa513b856Adam Cohen            return true;
212610b1737910ea7890ca95bbbe5363fd5aa513b856Adam Cohen        }
212710b1737910ea7890ca95bbbe5363fd5aa513b856Adam Cohen        return false;
212810b1737910ea7890ca95bbbe5363fd5aa513b856Adam Cohen    }
212910b1737910ea7890ca95bbbe5363fd5aa513b856Adam Cohen
2130a65beeea13c18c443f15f8d51c4c6e153a6c4ef9Adam Cohen    boolean addToExistingFolderIfNecessary(View newView, CellLayout target, int[] targetCell,
21313e8f811f31a2275e778244427271f77f4116c08bAdam Cohen            DragObject d, boolean external) {
2132a65beeea13c18c443f15f8d51c4c6e153a6c4ef9Adam Cohen        View dropOverView = target.getChildAt(targetCell[0], targetCell[1]);
2133c0dcf597084d00e4c23a7fea5fd0738f6c095a6bAdam Cohen        if (dropOverView instanceof FolderIcon) {
2134c0dcf597084d00e4c23a7fea5fd0738f6c095a6bAdam Cohen            FolderIcon fi = (FolderIcon) dropOverView;
21353e8f811f31a2275e778244427271f77f4116c08bAdam Cohen            if (fi.acceptDrop(d.dragInfo)) {
21363e8f811f31a2275e778244427271f77f4116c08bAdam Cohen                fi.onDrop(d);
2137c0dcf597084d00e4c23a7fea5fd0738f6c095a6bAdam Cohen
2138c0dcf597084d00e4c23a7fea5fd0738f6c095a6bAdam Cohen                // if the drag started here, we need to remove it from the workspace
2139c0dcf597084d00e4c23a7fea5fd0738f6c095a6bAdam Cohen                if (!external) {
2140c0dcf597084d00e4c23a7fea5fd0738f6c095a6bAdam Cohen                    int fromScreen = mDragInfo.screen;
2141c0dcf597084d00e4c23a7fea5fd0738f6c095a6bAdam Cohen                    CellLayout sourceLayout = (CellLayout) getChildAt(fromScreen);
2142c0dcf597084d00e4c23a7fea5fd0738f6c095a6bAdam Cohen                    sourceLayout.removeView(newView);
2143c0dcf597084d00e4c23a7fea5fd0738f6c095a6bAdam Cohen                }
2144c0dcf597084d00e4c23a7fea5fd0738f6c095a6bAdam Cohen                return true;
2145c0dcf597084d00e4c23a7fea5fd0738f6c095a6bAdam Cohen            }
2146c0dcf597084d00e4c23a7fea5fd0738f6c095a6bAdam Cohen        }
2147c0dcf597084d00e4c23a7fea5fd0738f6c095a6bAdam Cohen        return false;
2148c0dcf597084d00e4c23a7fea5fd0738f6c095a6bAdam Cohen    }
2149c0dcf597084d00e4c23a7fea5fd0738f6c095a6bAdam Cohen
2150cb3382b1bfe1a534b1b44f5c4def9b2db605ac90Adam Cohen    public void onDrop(DragObject d) {
2151cb3382b1bfe1a534b1b44f5c4def9b2db605ac90Adam Cohen        mDragViewVisualCenter = getDragViewVisualCenter(d.x, d.y, d.xOffset, d.yOffset, d.dragView,
2152e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen                mDragViewVisualCenter);
2153e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen
2154e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen        // We want the point to be mapped to the dragTarget.
2155ba781611b3e2fb1c42daa7167c1079b90b100efaAdam Cohen        if (mDragTargetLayout != null) {
2156ba781611b3e2fb1c42daa7167c1079b90b100efaAdam Cohen            mapPointFromSelfToChild(mDragTargetLayout, mDragViewVisualCenter, null);
2157ba781611b3e2fb1c42daa7167c1079b90b100efaAdam Cohen        }
2158c6ee42e25f203e408826e7eab4ad8faf67ed2ff9Michael Jurka
21593e5ad58a6885273a60f8eb77aa9aee965eecdb2cMichael Jurka        // When you are in customization mode and drag to a particular screen, make that the
21603e5ad58a6885273a60f8eb77aa9aee965eecdb2cMichael Jurka        // new current/default screen, so any subsequent taps add items to that screen
21613e5ad58a6885273a60f8eb77aa9aee965eecdb2cMichael Jurka        if (!mLauncher.isAllAppsVisible()) {
21623e5ad58a6885273a60f8eb77aa9aee965eecdb2cMichael Jurka            int dragTargetIndex = indexOfChild(mDragTargetLayout);
21633e5ad58a6885273a60f8eb77aa9aee965eecdb2cMichael Jurka            if (mCurrentPage != dragTargetIndex && (mIsSmall || mIsInUnshrinkAnimation)) {
21643e5ad58a6885273a60f8eb77aa9aee965eecdb2cMichael Jurka                scrollToNewPageWithoutMovingPages(dragTargetIndex);
21653e5ad58a6885273a60f8eb77aa9aee965eecdb2cMichael Jurka            }
2166b09cac5a738b679038cbeaec80041637100b65d9Michael Jurka        }
216776078c4ef35b6e95fb6d8129a32cf52a36625e28Adam Cohen        CellLayout dropTargetLayout = mDragTargetLayout;
2168b09cac5a738b679038cbeaec80041637100b65d9Michael Jurka
2169cb3382b1bfe1a534b1b44f5c4def9b2db605ac90Adam Cohen        if (d.dragSource != this) {
2170e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen            final int[] touchXY = new int[] { (int) mDragViewVisualCenter[0],
2171e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen                    (int) mDragViewVisualCenter[1] };
21723e8f811f31a2275e778244427271f77f4116c08bAdam Cohen            onDropExternal(touchXY, d.dragInfo, dropTargetLayout, false, d);
2173ce34a9768b01115def95f000a6a8f35870f10d3aPatrick Dubroy        } else if (mDragInfo != null) {
2174ce34a9768b01115def95f000a6a8f35870f10d3aPatrick Dubroy            final View cell = mDragInfo.cell;
217554fa3b95557c283976e8c1aa8a157b460b0b4513Patrick Dubroy
217654fa3b95557c283976e8c1aa8a157b460b0b4513Patrick Dubroy            if (dropTargetLayout != null) {
2177cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy                // Move internally
2178c0dcf597084d00e4c23a7fea5fd0738f6c095a6bAdam Cohen                final int screen = (mTargetCell[0] < 0) ?
217954fa3b95557c283976e8c1aa8a157b460b0b4513Patrick Dubroy                        mDragInfo.screen : indexOfChild(dropTargetLayout);
218054fa3b95557c283976e8c1aa8a157b460b0b4513Patrick Dubroy
2181c0dcf597084d00e4c23a7fea5fd0738f6c095a6bAdam Cohen                int spanX = mDragInfo != null ? mDragInfo.spanX : 1;
2182c0dcf597084d00e4c23a7fea5fd0738f6c095a6bAdam Cohen                int spanY = mDragInfo != null ? mDragInfo.spanY : 1;
2183c0dcf597084d00e4c23a7fea5fd0738f6c095a6bAdam Cohen                // First we find the cell nearest to point at which the item is
2184c0dcf597084d00e4c23a7fea5fd0738f6c095a6bAdam Cohen                // dropped, without any consideration to whether there is an item there.
2185c0dcf597084d00e4c23a7fea5fd0738f6c095a6bAdam Cohen                mTargetCell = findNearestArea((int) mDragViewVisualCenter[0], (int)
2186c0dcf597084d00e4c23a7fea5fd0738f6c095a6bAdam Cohen                        mDragViewVisualCenter[1], spanX, spanY, dropTargetLayout, mTargetCell);
2187c0dcf597084d00e4c23a7fea5fd0738f6c095a6bAdam Cohen                // If the item being dropped is a shortcut and the nearest drop
218876078c4ef35b6e95fb6d8129a32cf52a36625e28Adam Cohen                // cell also contains a shortcut, then create a folder with the two shortcuts.
218976078c4ef35b6e95fb6d8129a32cf52a36625e28Adam Cohen                boolean dropInscrollArea = mCurrentPage != screen;
219076078c4ef35b6e95fb6d8129a32cf52a36625e28Adam Cohen
2191ba781611b3e2fb1c42daa7167c1079b90b100efaAdam Cohen                if (!dropInscrollArea && createUserFolderIfNecessary(cell, dropTargetLayout,
2192557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung                        mTargetCell, false, d.dragView, null)) {
2193c0dcf597084d00e4c23a7fea5fd0738f6c095a6bAdam Cohen                    return;
2194c0dcf597084d00e4c23a7fea5fd0738f6c095a6bAdam Cohen                }
2195c0dcf597084d00e4c23a7fea5fd0738f6c095a6bAdam Cohen
21963e8f811f31a2275e778244427271f77f4116c08bAdam Cohen                if (addToExistingFolderIfNecessary(cell, dropTargetLayout, mTargetCell, d, false)) {
2197df0353815c629fc678824b07a234b89a1ff94208Adam Cohen                    return;
2198df0353815c629fc678824b07a234b89a1ff94208Adam Cohen                }
2199df0353815c629fc678824b07a234b89a1ff94208Adam Cohen
2200df0353815c629fc678824b07a234b89a1ff94208Adam Cohen                // Aside from the special case where we're dropping a shortcut onto a shortcut,
2201df0353815c629fc678824b07a234b89a1ff94208Adam Cohen                // we need to find the nearest cell location that is vacant
2202e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen                mTargetCell = findNearestVacantArea((int) mDragViewVisualCenter[0],
2203e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen                        (int) mDragViewVisualCenter[1], mDragInfo.spanX, mDragInfo.spanY, cell,
2204e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen                        dropTargetLayout, mTargetCell);
2205df0353815c629fc678824b07a234b89a1ff94208Adam Cohen
220676078c4ef35b6e95fb6d8129a32cf52a36625e28Adam Cohen                if (dropInscrollArea && mShrinkState != ShrinkState.SPRING_LOADED) {
220754fa3b95557c283976e8c1aa8a157b460b0b4513Patrick Dubroy                    snapToPage(screen);
220854fa3b95557c283976e8c1aa8a157b460b0b4513Patrick Dubroy                }
220954fa3b95557c283976e8c1aa8a157b460b0b4513Patrick Dubroy
2210c0dcf597084d00e4c23a7fea5fd0738f6c095a6bAdam Cohen                if (mTargetCell[0] >= 0 && mTargetCell[1] >= 0) {
22119438336724b4f8b54c7cdc49c5f01dd9568926ebPatrick Dubroy                    if (screen != mDragInfo.screen) {
22129438336724b4f8b54c7cdc49c5f01dd9568926ebPatrick Dubroy                        // Reparent the view
22139438336724b4f8b54c7cdc49c5f01dd9568926ebPatrick Dubroy                        ((CellLayout) getChildAt(mDragInfo.screen)).removeView(cell);
2214c0dcf597084d00e4c23a7fea5fd0738f6c095a6bAdam Cohen                        addInScreen(cell, screen, mTargetCell[0], mTargetCell[1], mDragInfo.spanX,
2215c0dcf597084d00e4c23a7fea5fd0738f6c095a6bAdam Cohen                                mDragInfo.spanY);
22169438336724b4f8b54c7cdc49c5f01dd9568926ebPatrick Dubroy                    }
2217cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy
221876078c4ef35b6e95fb6d8129a32cf52a36625e28Adam Cohen
22199438336724b4f8b54c7cdc49c5f01dd9568926ebPatrick Dubroy                    // update the item's position after drop
22209438336724b4f8b54c7cdc49c5f01dd9568926ebPatrick Dubroy                    final ItemInfo info = (ItemInfo) cell.getTag();
22219438336724b4f8b54c7cdc49c5f01dd9568926ebPatrick Dubroy                    CellLayout.LayoutParams lp = (CellLayout.LayoutParams) cell.getLayoutParams();
222254fa3b95557c283976e8c1aa8a157b460b0b4513Patrick Dubroy                    dropTargetLayout.onMove(cell, mTargetCell[0], mTargetCell[1]);
22239438336724b4f8b54c7cdc49c5f01dd9568926ebPatrick Dubroy                    lp.cellX = mTargetCell[0];
22249438336724b4f8b54c7cdc49c5f01dd9568926ebPatrick Dubroy                    lp.cellY = mTargetCell[1];
22259438336724b4f8b54c7cdc49c5f01dd9568926ebPatrick Dubroy                    cell.setId(LauncherModel.getCellLayoutChildId(-1, mDragInfo.screen,
22269438336724b4f8b54c7cdc49c5f01dd9568926ebPatrick Dubroy                            mTargetCell[0], mTargetCell[1], mDragInfo.spanX, mDragInfo.spanY));
22279438336724b4f8b54c7cdc49c5f01dd9568926ebPatrick Dubroy
2228d4844c3e731b00547a31f23a00f8bd4a271e2b62Adam Cohen                    if (cell instanceof LauncherAppWidgetHostView) {
2229d4844c3e731b00547a31f23a00f8bd4a271e2b62Adam Cohen                        final CellLayout cellLayout = dropTargetLayout;
2230d4844c3e731b00547a31f23a00f8bd4a271e2b62Adam Cohen                        // We post this call so that the widget has a chance to be placed
2231d4844c3e731b00547a31f23a00f8bd4a271e2b62Adam Cohen                        // in its final location
2232d4844c3e731b00547a31f23a00f8bd4a271e2b62Adam Cohen
2233d4844c3e731b00547a31f23a00f8bd4a271e2b62Adam Cohen                        final LauncherAppWidgetHostView hostView = (LauncherAppWidgetHostView) cell;
2234d4844c3e731b00547a31f23a00f8bd4a271e2b62Adam Cohen                        AppWidgetProviderInfo pinfo = hostView.getAppWidgetInfo();
223527c09b05d3ed2a4ce9d53140216aba998727a569Adam Cohen                        if (pinfo.resizeMode != AppWidgetProviderInfo.RESIZE_NONE) {
223626976d9b53161f80faf822d482ac771b8621cf31Adam Cohen                            final Runnable resizeRunnable = new Runnable() {
2237d4844c3e731b00547a31f23a00f8bd4a271e2b62Adam Cohen                                public void run() {
2238716b51e030f9c6ed34af2b947760e46a280c65a6Adam Cohen                                    DragLayer dragLayer = mLauncher.getDragLayer();
2239c0dcf597084d00e4c23a7fea5fd0738f6c095a6bAdam Cohen                                    dragLayer.addResizeFrame(info, hostView, cellLayout);
2240d4844c3e731b00547a31f23a00f8bd4a271e2b62Adam Cohen                                }
224126976d9b53161f80faf822d482ac771b8621cf31Adam Cohen                            };
224226976d9b53161f80faf822d482ac771b8621cf31Adam Cohen                            post(new Runnable() {
224326976d9b53161f80faf822d482ac771b8621cf31Adam Cohen                                public void run() {
224426976d9b53161f80faf822d482ac771b8621cf31Adam Cohen                                    if (!isPageMoving()) {
224526976d9b53161f80faf822d482ac771b8621cf31Adam Cohen                                        resizeRunnable.run();
224626976d9b53161f80faf822d482ac771b8621cf31Adam Cohen                                    } else {
224726976d9b53161f80faf822d482ac771b8621cf31Adam Cohen                                        mDelayedResizeRunnable = resizeRunnable;
224826976d9b53161f80faf822d482ac771b8621cf31Adam Cohen                                    }
224926976d9b53161f80faf822d482ac771b8621cf31Adam Cohen                                }
2250d4844c3e731b00547a31f23a00f8bd4a271e2b62Adam Cohen                            });
2251d4844c3e731b00547a31f23a00f8bd4a271e2b62Adam Cohen                        }
2252d4844c3e731b00547a31f23a00f8bd4a271e2b62Adam Cohen                    }
2253d4844c3e731b00547a31f23a00f8bd4a271e2b62Adam Cohen
22549438336724b4f8b54c7cdc49c5f01dd9568926ebPatrick Dubroy                    LauncherModel.moveItemInDatabase(mLauncher, info,
22559438336724b4f8b54c7cdc49c5f01dd9568926ebPatrick Dubroy                            LauncherSettings.Favorites.CONTAINER_DESKTOP, screen,
22569438336724b4f8b54c7cdc49c5f01dd9568926ebPatrick Dubroy                            lp.cellX, lp.cellY);
22579438336724b4f8b54c7cdc49c5f01dd9568926ebPatrick Dubroy                }
225831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            }
2259cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy
22608c920dd3683d752aa4c43e964831ce53f9b72887Michael Jurka            final CellLayout parent = (CellLayout) cell.getParent().getParent();
2261ce34a9768b01115def95f000a6a8f35870f10d3aPatrick Dubroy
2262ce34a9768b01115def95f000a6a8f35870f10d3aPatrick Dubroy            // Prepare it to be animated into its new position
2263ce34a9768b01115def95f000a6a8f35870f10d3aPatrick Dubroy            // This must be called after the view has been re-parented
2264716b51e030f9c6ed34af2b947760e46a280c65a6Adam Cohen            mLauncher.getDragLayer().animateViewIntoPosition(d.dragView, cell);
2265716b51e030f9c6ed34af2b947760e46a280c65a6Adam Cohen            parent.onDropChild(cell);
226631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
226731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
226831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
226976078c4ef35b6e95fb6d8129a32cf52a36625e28Adam Cohen    public void getViewLocationRelativeToSelf(View v, int[] location) {
22708dfcba4af7a7ece09e8c7d96053e54f3a383e905Adam Cohen        getLocationInWindow(location);
2271e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen        int x = location[0];
2272e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen        int y = location[1];
2273e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen
22748dfcba4af7a7ece09e8c7d96053e54f3a383e905Adam Cohen        v.getLocationInWindow(location);
2275e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen        int vX = location[0];
2276e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen        int vY = location[1];
2277e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen
2278e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen        location[0] = vX - x;
2279e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen        location[1] = vY - y;
2280e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen    }
2281e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen
2282cb3382b1bfe1a534b1b44f5c4def9b2db605ac90Adam Cohen    public void onDragEnter(DragObject d) {
2283b26f3d6a8c62e7c1a603b6c7979375d8dd4f20d4Winson Chung        if (mDragTargetLayout != null) {
2284c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung            mDragTargetLayout.setIsDragOverlapping(false);
2285b26f3d6a8c62e7c1a603b6c7979375d8dd4f20d4Winson Chung            mDragTargetLayout.onDragExit();
2286b26f3d6a8c62e7c1a603b6c7979375d8dd4f20d4Winson Chung        }
2287c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung        mDragTargetLayout = getCurrentDropLayout();
2288c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung        mDragTargetLayout.setIsDragOverlapping(true);
2289c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung        mDragTargetLayout.onDragEnter();
2290c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung
2291c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung        // Because we don't have space in the Phone UI (the CellLayouts run to the edge) we
2292c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung        // don't need to show the outlines
2293c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung        if (LauncherApplication.isScreenLarge()) {
2294c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung            showOutlines();
2295c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung        }
2296c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung    }
2297b26f3d6a8c62e7c1a603b6c7979375d8dd4f20d4Winson Chung
2298c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung    private void doDragExit(DragObject d) {
2299c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung        // Clean up folders
2300c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung        cleanupFolderCreation(d);
2301fd3385fe9e0f034b04f99d5d59a58d74fe040da4Winson Chung
2302c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung        // Reset the scroll area and previous drag target
2303c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung        onResetScrollArea();
2304c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung
2305c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung        if (mDragTargetLayout != null) {
2306c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung            mDragTargetLayout.setIsDragOverlapping(false);
2307c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung            mDragTargetLayout.onDragExit();
2308d718d6a7ba424b600052a147e5633a201a04ccb7Michael Jurka        }
2309c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung        mLastDragOverView = null;
2310c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung
2311c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung        if (!mIsPageMoving) {
2312c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung            hideOutlines();
2313c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung        }
2314c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung    }
2315c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung
2316c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung    public void onDragExit(DragObject d) {
2317c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung        doDragExit(d);
231831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
231931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
2320cb3382b1bfe1a534b1b44f5c4def9b2db605ac90Adam Cohen    public DropTarget getDropTargetDelegate(DragObject d) {
2321440c360bc395c43683fa9ca226e59f9e35f9e926Patrick Dubroy        return null;
2322440c360bc395c43683fa9ca226e59f9e35f9e926Patrick Dubroy    }
23236569f2c80e179c2f8ed73dae6b01d971ec20f005Patrick Dubroy
2324a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung    /**
2325580e27748137ff08599aa719d106b31215a28353Winson Chung     * Tests to see if the drop will be accepted by Launcher, and if so, includes additional data
2326580e27748137ff08599aa719d106b31215a28353Winson Chung     * in the returned structure related to the widgets that match the drop (or a null list if it is
2327580e27748137ff08599aa719d106b31215a28353Winson Chung     * a shortcut drop).  If the drop is not accepted then a null structure is returned.
2328580e27748137ff08599aa719d106b31215a28353Winson Chung     */
2329580e27748137ff08599aa719d106b31215a28353Winson Chung    private Pair<Integer, List<WidgetMimeTypeHandlerData>> validateDrag(DragEvent event) {
2330580e27748137ff08599aa719d106b31215a28353Winson Chung        final LauncherModel model = mLauncher.getModel();
2331580e27748137ff08599aa719d106b31215a28353Winson Chung        final ClipDescription desc = event.getClipDescription();
2332580e27748137ff08599aa719d106b31215a28353Winson Chung        final int mimeTypeCount = desc.getMimeTypeCount();
2333580e27748137ff08599aa719d106b31215a28353Winson Chung        for (int i = 0; i < mimeTypeCount; ++i) {
2334580e27748137ff08599aa719d106b31215a28353Winson Chung            final String mimeType = desc.getMimeType(i);
2335580e27748137ff08599aa719d106b31215a28353Winson Chung            if (mimeType.equals(InstallShortcutReceiver.SHORTCUT_MIMETYPE)) {
2336580e27748137ff08599aa719d106b31215a28353Winson Chung                return new Pair<Integer, List<WidgetMimeTypeHandlerData>>(i, null);
2337580e27748137ff08599aa719d106b31215a28353Winson Chung            } else {
2338580e27748137ff08599aa719d106b31215a28353Winson Chung                final List<WidgetMimeTypeHandlerData> widgets =
2339580e27748137ff08599aa719d106b31215a28353Winson Chung                    model.resolveWidgetsForMimeType(mContext, mimeType);
2340580e27748137ff08599aa719d106b31215a28353Winson Chung                if (widgets.size() > 0) {
2341580e27748137ff08599aa719d106b31215a28353Winson Chung                    return new Pair<Integer, List<WidgetMimeTypeHandlerData>>(i, widgets);
2342580e27748137ff08599aa719d106b31215a28353Winson Chung                }
2343580e27748137ff08599aa719d106b31215a28353Winson Chung            }
2344580e27748137ff08599aa719d106b31215a28353Winson Chung        }
2345580e27748137ff08599aa719d106b31215a28353Winson Chung        return null;
2346580e27748137ff08599aa719d106b31215a28353Winson Chung    }
2347580e27748137ff08599aa719d106b31215a28353Winson Chung
2348580e27748137ff08599aa719d106b31215a28353Winson Chung    /**
2349a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung     * Global drag and drop handler
2350a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung     */
2351a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung    @Override
2352a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung    public boolean onDragEvent(DragEvent event) {
235368846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung        final ClipDescription desc = event.getClipDescription();
2354a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung        final CellLayout layout = (CellLayout) getChildAt(mCurrentPage);
2355a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung        final int[] pos = new int[2];
2356a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung        layout.getLocationOnScreen(pos);
2357a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung        // We need to offset the drag coordinates to layout coordinate space
2358a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung        final int x = (int) event.getX() - pos[0];
2359a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung        final int y = (int) event.getY() - pos[1];
2360a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung
2361a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung        switch (event.getAction()) {
2362580e27748137ff08599aa719d106b31215a28353Winson Chung        case DragEvent.ACTION_DRAG_STARTED: {
2363580e27748137ff08599aa719d106b31215a28353Winson Chung            // Validate this drag
2364580e27748137ff08599aa719d106b31215a28353Winson Chung            Pair<Integer, List<WidgetMimeTypeHandlerData>> test = validateDrag(event);
2365580e27748137ff08599aa719d106b31215a28353Winson Chung            if (test != null) {
2366580e27748137ff08599aa719d106b31215a28353Winson Chung                boolean isShortcut = (test.second == null);
2367580e27748137ff08599aa719d106b31215a28353Winson Chung                if (isShortcut) {
2368580e27748137ff08599aa719d106b31215a28353Winson Chung                    // Check if we have enough space on this screen to add a new shortcut
2369580e27748137ff08599aa719d106b31215a28353Winson Chung                    if (!layout.findCellForSpan(pos, 1, 1)) {
2370557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung                        mLauncher.showOutOfSpaceMessage();
2371580e27748137ff08599aa719d106b31215a28353Winson Chung                        return false;
2372580e27748137ff08599aa719d106b31215a28353Winson Chung                    }
2373580e27748137ff08599aa719d106b31215a28353Winson Chung                }
2374580e27748137ff08599aa719d106b31215a28353Winson Chung            } else {
2375580e27748137ff08599aa719d106b31215a28353Winson Chung                // Show error message if we couldn't accept any of the items
2376580e27748137ff08599aa719d106b31215a28353Winson Chung                Toast.makeText(mContext, mContext.getString(R.string.external_drop_widget_error),
2377a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung                        Toast.LENGTH_SHORT).show();
2378a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung                return false;
2379a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung            }
2380a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung
238168846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung            // Create the drag outline
238268846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung            // We need to add extra padding to the bitmap to make room for the glow effect
238368846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung            final Canvas canvas = new Canvas();
238438b4f7c5eab773ad36048b5ab8713750dcaaf748Michael Jurka            final int bitmapPadding = HolographicOutlineHelper.MAX_OUTER_BLUR_RADIUS;
238568846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung            mDragOutline = createExternalDragOutline(canvas, bitmapPadding);
2386a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung
238768846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung            // Show the current page outlines to indicate that we can accept this drop
238868846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung            showOutlines();
238933945b21544bc98381df17726a3537c292d8c985Michael Jurka            layout.setIsDragOccuring(true);
239068846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung            layout.onDragEnter();
239168846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung            layout.visualizeDropLocation(null, mDragOutline, x, y, 1, 1);
2392a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung
239368846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung            return true;
2394580e27748137ff08599aa719d106b31215a28353Winson Chung        }
2395a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung        case DragEvent.ACTION_DRAG_LOCATION:
2396a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung            // Visualize the drop location
2397a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung            layout.visualizeDropLocation(null, mDragOutline, x, y, 1, 1);
2398a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung            return true;
2399580e27748137ff08599aa719d106b31215a28353Winson Chung        case DragEvent.ACTION_DROP: {
2400a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung            // Try and add any shortcuts
2401a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung            final LauncherModel model = mLauncher.getModel();
2402a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung            final ClipData data = event.getClipData();
240355cef262f97749300c2f6e764da0b00cbcb78879Winson Chung
240468846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung            // We assume that the mime types are ordered in descending importance of
240568846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung            // representation. So we enumerate the list of mime types and alert the
240668846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung            // user if any widgets can handle the drop.  Only the most preferred
240768846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung            // representation will be handled.
240868846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung            pos[0] = x;
240968846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung            pos[1] = y;
2410580e27748137ff08599aa719d106b31215a28353Winson Chung            Pair<Integer, List<WidgetMimeTypeHandlerData>> test = validateDrag(event);
2411580e27748137ff08599aa719d106b31215a28353Winson Chung            if (test != null) {
2412580e27748137ff08599aa719d106b31215a28353Winson Chung                final int index = test.first;
2413580e27748137ff08599aa719d106b31215a28353Winson Chung                final List<WidgetMimeTypeHandlerData> widgets = test.second;
2414580e27748137ff08599aa719d106b31215a28353Winson Chung                final boolean isShortcut = (widgets == null);
2415580e27748137ff08599aa719d106b31215a28353Winson Chung                final String mimeType = desc.getMimeType(index);
2416580e27748137ff08599aa719d106b31215a28353Winson Chung                if (isShortcut) {
24170d5aad7edbed3ed5c13904cc13ec8842ffe8837bDianne Hackborn                    final Intent intent = data.getItemAt(index).getIntent();
241868846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung                    Object info = model.infoFromShortcutIntent(mContext, intent, data.getIcon());
2419c4e772e4b3f21bde342e475ebc49b5b76b8f74e8Michael Jurka                    onDropExternal(new int[] { x, y }, info, layout, false);
242068846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung                } else {
2421580e27748137ff08599aa719d106b31215a28353Winson Chung                    if (widgets.size() == 1) {
242268846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung                        // If there is only one item, then go ahead and add and configure
242368846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung                        // that widget
242468846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung                        final AppWidgetProviderInfo widgetInfo = widgets.get(0).widgetInfo;
242568846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung                        final PendingAddWidgetInfo createInfo =
242668846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung                                new PendingAddWidgetInfo(widgetInfo, mimeType, data);
242768846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung                        mLauncher.addAppWidgetFromDrop(createInfo, mCurrentPage, pos);
2428580e27748137ff08599aa719d106b31215a28353Winson Chung                    } else {
242968846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung                        // Show the widget picker dialog if there is more than one widget
243068846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung                        // that can handle this data type
243168846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung                        final InstallWidgetReceiver.WidgetListAdapter adapter =
243268846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung                            new InstallWidgetReceiver.WidgetListAdapter(mLauncher, mimeType,
243368846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung                                    data, widgets, layout, mCurrentPage, pos);
243468846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung                        final AlertDialog.Builder builder =
243568846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung                            new AlertDialog.Builder(mContext);
243668846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung                        builder.setAdapter(adapter, adapter);
243768846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung                        builder.setCancelable(true);
243868846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung                        builder.setTitle(mContext.getString(
243968846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung                                R.string.external_drop_widget_pick_title));
244068846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung                        builder.setIcon(R.drawable.ic_no_applications);
244168846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung                        builder.show();
244255cef262f97749300c2f6e764da0b00cbcb78879Winson Chung                    }
2443a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung                }
2444a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung            }
2445a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung            return true;
2446580e27748137ff08599aa719d106b31215a28353Winson Chung        }
2447a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung        case DragEvent.ACTION_DRAG_ENDED:
2448a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung            // Hide the page outlines after the drop
244933945b21544bc98381df17726a3537c292d8c985Michael Jurka            layout.setIsDragOccuring(false);
2450a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung            layout.onDragExit();
2451a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung            hideOutlines();
2452a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung            return true;
2453a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung        }
2454a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung        return super.onDragEvent(event);
2455a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung    }
2456a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung
24574516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka    /*
24584516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka    *
24594516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka    * Convert the 2D coordinate xy from the parent View's coordinate space to this CellLayout's
24604516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka    * coordinate space. The argument xy is modified with the return result.
24614516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka    *
24624516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka    */
24634516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka   void mapPointFromSelfToChild(View v, float[] xy) {
24644516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka       mapPointFromSelfToChild(v, xy, null);
24654516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka   }
24664516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka
24674516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka   /*
24684516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka    *
24694516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka    * Convert the 2D coordinate xy from the parent View's coordinate space to this CellLayout's
24704516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka    * coordinate space. The argument xy is modified with the return result.
24714516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka    *
24724516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka    * if cachedInverseMatrix is not null, this method will just use that matrix instead of
2473d718d6a7ba424b600052a147e5633a201a04ccb7Michael Jurka    * computing it itself; we use this to avoid redundant matrix inversions in
24744516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka    * findMatchingPageForDragOver
24754516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka    *
24764516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka    */
24774516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka   void mapPointFromSelfToChild(View v, float[] xy, Matrix cachedInverseMatrix) {
24784516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka       if (cachedInverseMatrix == null) {
24794516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka           v.getMatrix().invert(mTempInverseMatrix);
24804516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka           cachedInverseMatrix = mTempInverseMatrix;
24814516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka       }
24824516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka       xy[0] = xy[0] + mScrollX - v.getLeft();
24834516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka       xy[1] = xy[1] + mScrollY - v.getTop();
24844516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka       cachedInverseMatrix.mapPoints(xy);
24854516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka   }
24864516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka
24874516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka   /*
24884516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka    *
24894516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka    * Convert the 2D coordinate xy from this CellLayout's coordinate space to
24904516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka    * the parent View's coordinate space. The argument xy is modified with the return result.
24914516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka    *
24924516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka    */
24934516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka   void mapPointFromChildToSelf(View v, float[] xy) {
24944516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka       v.getMatrix().mapPoints(xy);
24954516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka       xy[0] -= (mScrollX - v.getLeft());
24964516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka       xy[1] -= (mScrollY - v.getTop());
24974516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka   }
24984516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka
2499e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen   static private float squaredDistance(float[] point1, float[] point2) {
25004516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka        float distanceX = point1[0] - point2[0];
25014516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka        float distanceY = point2[1] - point2[1];
25024516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka        return distanceX * distanceX + distanceY * distanceY;
2503e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen   }
25040280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka
25054516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka    /*
25064516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka     *
25074516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka     * Returns true if the passed CellLayout cl overlaps with dragView
25084516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka     *
25094516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka     */
25104516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka    boolean overlaps(CellLayout cl, DragView dragView,
25114516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka            int dragViewX, int dragViewY, Matrix cachedInverseMatrix) {
25124516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka        // Transform the coordinates of the item being dragged to the CellLayout's coordinates
25134516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka        final float[] draggedItemTopLeft = mTempDragCoordinates;
2514f12c75cb48f87955600c56ccbe0aac84b0c11b28Michael Jurka        draggedItemTopLeft[0] = dragViewX;
2515f12c75cb48f87955600c56ccbe0aac84b0c11b28Michael Jurka        draggedItemTopLeft[1] = dragViewY;
25164516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka        final float[] draggedItemBottomRight = mTempDragBottomRightCoordinates;
2517f12c75cb48f87955600c56ccbe0aac84b0c11b28Michael Jurka        draggedItemBottomRight[0] = draggedItemTopLeft[0] + dragView.getDragRegionWidth();
2518f12c75cb48f87955600c56ccbe0aac84b0c11b28Michael Jurka        draggedItemBottomRight[1] = draggedItemTopLeft[1] + dragView.getDragRegionHeight();
25194516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka
25204516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka        // Transform the dragged item's top left coordinates
25214516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka        // to the CellLayout's local coordinates
25224516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka        mapPointFromSelfToChild(cl, draggedItemTopLeft, cachedInverseMatrix);
25234516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka        float overlapRegionLeft = Math.max(0f, draggedItemTopLeft[0]);
25244516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka        float overlapRegionTop = Math.max(0f, draggedItemTopLeft[1]);
25254516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka
25264516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka        if (overlapRegionLeft <= cl.getWidth() && overlapRegionTop >= 0) {
25274516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka            // Transform the dragged item's bottom right coordinates
25284516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka            // to the CellLayout's local coordinates
25294516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka            mapPointFromSelfToChild(cl, draggedItemBottomRight, cachedInverseMatrix);
25304516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka            float overlapRegionRight = Math.min(cl.getWidth(), draggedItemBottomRight[0]);
25314516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka            float overlapRegionBottom = Math.min(cl.getHeight(), draggedItemBottomRight[1]);
25324516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka
25334516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka            if (overlapRegionRight >= 0 && overlapRegionBottom <= cl.getHeight()) {
25344516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka                float overlap = (overlapRegionRight - overlapRegionLeft) *
25354516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka                         (overlapRegionBottom - overlapRegionTop);
25364516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka                if (overlap > 0) {
25374516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka                    return true;
25384516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka                }
25394516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka             }
25404516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka        }
25414516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka        return false;
25424516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka    }
2543a63c452f5bd491ba9b28c332ccedc6c6c7e2f3ccMichael Jurka
25444516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka    /*
25454516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka     *
25464516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka     * This method returns the CellLayout that is currently being dragged to. In order to drag
25474516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka     * to a CellLayout, either the touch point must be directly over the CellLayout, or as a second
25484516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka     * strategy, we see if the dragView is overlapping any CellLayout and choose the closest one
25494516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka     *
25504516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka     * Return null if no CellLayout is currently being dragged over
25514516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka     *
25524516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka     */
25534516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka    private CellLayout findMatchingPageForDragOver(
2554c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung            DragView dragView, int originX, int originY, int offsetX, int offsetY, boolean exact) {
25554516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka        // We loop through all the screens (ie CellLayouts) and see which ones overlap
25564516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka        // with the item being dragged and then choose the one that's closest to the touch point
2557a63c452f5bd491ba9b28c332ccedc6c6c7e2f3ccMichael Jurka        final int screenCount = getChildCount();
2558a63c452f5bd491ba9b28c332ccedc6c6c7e2f3ccMichael Jurka        CellLayout bestMatchingScreen = null;
25590280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka        float smallestDistSoFar = Float.MAX_VALUE;
25604516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka
2561a63c452f5bd491ba9b28c332ccedc6c6c7e2f3ccMichael Jurka        for (int i = 0; i < screenCount; i++) {
2562a63c452f5bd491ba9b28c332ccedc6c6c7e2f3ccMichael Jurka            CellLayout cl = (CellLayout)getChildAt(i);
2563a63c452f5bd491ba9b28c332ccedc6c6c7e2f3ccMichael Jurka
25644516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka            final float[] touchXy = mTempTouchCoordinates;
25654516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka            touchXy[0] = originX + offsetX;
25664516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka            touchXy[1] = originY + offsetY;
2567a63c452f5bd491ba9b28c332ccedc6c6c7e2f3ccMichael Jurka
25684516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka            // Transform the touch coordinates to the CellLayout's local coordinates
25694516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka            // If the touch point is within the bounds of the cell layout, we can return immediately
25700280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka            cl.getMatrix().invert(mTempInverseMatrix);
25714516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka            mapPointFromSelfToChild(cl, touchXy, mTempInverseMatrix);
25724516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka
25734516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka            if (touchXy[0] >= 0 && touchXy[0] <= cl.getWidth() &&
25744516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka                    touchXy[1] >= 0 && touchXy[1] <= cl.getHeight()) {
25754516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka                return cl;
25764516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka            }
25774516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka
2578c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung            if (!exact && overlaps(cl, dragView, originX, originY, mTempInverseMatrix)) {
25794516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka                // Get the center of the cell layout in screen coordinates
25804516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka                final float[] cellLayoutCenter = mTempCellLayoutCenterCoordinates;
25814516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka                cellLayoutCenter[0] = cl.getWidth()/2;
25824516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka                cellLayoutCenter[1] = cl.getHeight()/2;
25834516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka                mapPointFromChildToSelf(cl, cellLayoutCenter);
25844516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka
25854516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka                touchXy[0] = originX + offsetX;
25864516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka                touchXy[1] = originY + offsetY;
25874516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka
25884516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka                // Calculate the distance between the center of the CellLayout
25894516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka                // and the touch point
25904516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka                float dist = squaredDistance(touchXy, cellLayoutCenter);
25914516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka
25924516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka                if (dist < smallestDistSoFar) {
25930280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka                    smallestDistSoFar = dist;
2594a63c452f5bd491ba9b28c332ccedc6c6c7e2f3ccMichael Jurka                    bestMatchingScreen = cl;
2595a63c452f5bd491ba9b28c332ccedc6c6c7e2f3ccMichael Jurka                }
25964516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka            }
2597a63c452f5bd491ba9b28c332ccedc6c6c7e2f3ccMichael Jurka        }
2598a63c452f5bd491ba9b28c332ccedc6c6c7e2f3ccMichael Jurka        return bestMatchingScreen;
2599a63c452f5bd491ba9b28c332ccedc6c6c7e2f3ccMichael Jurka    }
2600a63c452f5bd491ba9b28c332ccedc6c6c7e2f3ccMichael Jurka
2601e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen    // This is used to compute the visual center of the dragView. This point is then
2602e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen    // used to visualize drop locations and determine where to drop an item. The idea is that
2603e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen    // the visual center represents the user's interpretation of where the item is, and hence
2604e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen    // is the appropriate point to use when determining drop location.
2605e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen    private float[] getDragViewVisualCenter(int x, int y, int xOffset, int yOffset,
2606e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen            DragView dragView, float[] recycle) {
2607e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen        float res[];
2608e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen        if (recycle == null) {
2609e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen            res = new float[2];
2610e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen        } else {
2611e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen            res = recycle;
2612e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen        }
2613e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen
2614e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen        // First off, the drag view has been shifted in a way that is not represented in the
2615e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen        // x and y values or the x/yOffsets. Here we account for that shift.
2616e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen        x += getResources().getDimensionPixelSize(R.dimen.dragViewOffsetX);
2617e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen        y += getResources().getDimensionPixelSize(R.dimen.dragViewOffsetY);
2618e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen
2619e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen        // These represent the visual top and left of drag view if a dragRect was provided.
2620e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen        // If a dragRect was not provided, then they correspond to the actual view left and
2621e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen        // top, as the dragRect is in that case taken to be the entire dragView.
2622e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen        // R.dimen.dragViewOffsetY.
2623e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen        int left = x - xOffset;
2624e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen        int top = y - yOffset;
2625e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen
2626e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen        // In order to find the visual center, we shift by half the dragRect
2627e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen        res[0] = left + dragView.getDragRegion().width() / 2;
2628e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen        res[1] = top + dragView.getDragRegion().height() / 2;
2629e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen
2630e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen        return res;
2631e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen    }
2632e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen
2633cb3382b1bfe1a534b1b44f5c4def9b2db605ac90Adam Cohen    public void onDragOver(DragObject d) {
2634c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung        // Skip drag over events while we are dragging over side pages
2635c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung        if (mInScrollArea) return;
2636c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung        if (mIsInUnshrinkAnimation) return;
2637c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung
2638c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung        CellLayout layout;
2639c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung        ItemInfo item = (ItemInfo) d.dragInfo;
2640c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung
2641c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung        // Ensure that we have proper spans for the item that we are dropping
2642c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung        if (item.spanX < 0 || item.spanY < 0) throw new RuntimeException("Improper spans found");
2643c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung
2644c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung        // Identify whether we have dragged over a side page
2645c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung        if (mIsSmall) {
2646cb3382b1bfe1a534b1b44f5c4def9b2db605ac90Adam Cohen            int left = d.x - d.xOffset;
2647cb3382b1bfe1a534b1b44f5c4def9b2db605ac90Adam Cohen            int top = d.y - d.yOffset;
2648c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung            layout = findMatchingPageForDragOver(d.dragView, left, top, d.xOffset, d.yOffset, true);
2649c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung            if (layout != mDragTargetLayout) {
2650c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung                // Cancel all intermediate folder states
2651c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung                cleanupFolderCreation(d);
2652e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen
2653c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung                if (mDragTargetLayout != null) {
2654c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung                    mDragTargetLayout.setIsDragOverlapping(false);
2655c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung                    mDragTargetLayout.onDragExit();
2656d718d6a7ba424b600052a147e5633a201a04ccb7Michael Jurka                }
2657c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung                mDragTargetLayout = layout;
2658c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung                if (mDragTargetLayout != null) {
2659c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung                    mDragTargetLayout.setIsDragOverlapping(true);
2660c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung                    mDragTargetLayout.onDragEnter();
2661c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung                } else {
2662c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung                    mLastDragOverView = null;
2663c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung                }
2664c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung
2665c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung                boolean isInSpringLoadedMode = (mShrinkState == ShrinkState.SPRING_LOADED);
2666c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung                if (isInSpringLoadedMode) {
2667c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung                    mSpringLoadedDragController.setAlarm(mDragTargetLayout);
2668d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka                }
2669d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka            }
2670c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung        } else {
2671c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung            layout = getCurrentDropLayout();
2672c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung            if (layout != mDragTargetLayout) {
2673c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung                if (mDragTargetLayout != null) {
2674c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung                    mDragTargetLayout.setIsDragOverlapping(false);
2675c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung                    mDragTargetLayout.onDragExit();
2676d718d6a7ba424b600052a147e5633a201a04ccb7Michael Jurka                }
2677c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung                mDragTargetLayout = layout;
2678c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung                mDragTargetLayout.setIsDragOverlapping(true);
2679c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung                mDragTargetLayout.onDragEnter();
2680c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung            }
2681c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung        }
2682a63c452f5bd491ba9b28c332ccedc6c6c7e2f3ccMichael Jurka
2683c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung        // Handle the drag over
2684c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung        if (mDragTargetLayout != null) {
2685c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung            final View child = (mDragInfo == null) ? null : mDragInfo.cell;
268619072da7441e07d5e90026d9e9e1b38f11245e44Adam Cohen
2687c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung            mDragViewVisualCenter = getDragViewVisualCenter(d.x, d.y, d.xOffset, d.yOffset,
2688c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung                    d.dragView, mDragViewVisualCenter);
2689c0dcf597084d00e4c23a7fea5fd0738f6c095a6bAdam Cohen
2690c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung            // We want the point to be mapped to the dragTarget.
2691c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung            mapPointFromSelfToChild(mDragTargetLayout, mDragViewVisualCenter, null);
2692c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung            ItemInfo info = (ItemInfo) d.dragInfo;
269319072da7441e07d5e90026d9e9e1b38f11245e44Adam Cohen
2694c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung            mTargetCell = findNearestArea((int) mDragViewVisualCenter[0],
2695c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung                    (int) mDragViewVisualCenter[1], 1, 1, mDragTargetLayout, mTargetCell);
2696c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung            final View dragOverView = mDragTargetLayout.getChildAt(mTargetCell[0],
2697c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung                    mTargetCell[1]);
2698c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung
2699c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung            boolean userFolderPending = willCreateUserFolder(info, mDragTargetLayout,
2700c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung                    mTargetCell, false);
2701c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung            boolean isOverFolder = dragOverView instanceof FolderIcon;
2702c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung            if (dragOverView != mLastDragOverView) {
2703c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung                cancelFolderCreation();
2704c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung                if (mLastDragOverView != null && mLastDragOverView instanceof FolderIcon) {
2705c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung                    ((FolderIcon) mLastDragOverView).onDragExit(d.dragInfo);
2706d718d6a7ba424b600052a147e5633a201a04ccb7Michael Jurka                }
27071262e369484ce7f2565655ed80e6299232c70bd7Patrick Dubroy            }
2708c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung
2709c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung            if (userFolderPending && dragOverView != mLastDragOverView) {
2710c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung                mFolderCreationAlarm.setOnAlarmListener(new
2711c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung                        FolderCreationAlarmListener(mDragTargetLayout, mTargetCell[0], mTargetCell[1]));
2712c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung                mFolderCreationAlarm.setAlarm(FOLDER_CREATION_TIMEOUT);
2713c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung            }
2714c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung
2715c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung            if (dragOverView != mLastDragOverView && isOverFolder) {
2716c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung                ((FolderIcon) dragOverView).onDragEnter(d.dragInfo);
2717c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung                if (mDragTargetLayout != null) {
2718c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung                    mDragTargetLayout.clearDragOutlines();
2719c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung                }
2720c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung            }
2721c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung            mLastDragOverView = dragOverView;
2722c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung
2723c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung            if (!mCreateUserFolderOnDrop && !isOverFolder) {
2724c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung                mDragTargetLayout.visualizeDropLocation(child, mDragOutline,
2725c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung                        (int) mDragViewVisualCenter[0], (int) mDragViewVisualCenter[1],
2726c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung                        item.spanX, item.spanY);
2727c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung            }
2728c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung        }
2729c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung    }
2730c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung
2731c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung    private void cleanupFolderCreation(DragObject d) {
2732c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung        if (mDragFolderRingAnimator != null && mCreateUserFolderOnDrop) {
2733c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung            mDragFolderRingAnimator.animateToNaturalState();
2734c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung        }
2735c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung        if (mLastDragOverView != null && mLastDragOverView instanceof FolderIcon) {
2736c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung            if (d != null) {
2737c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung                ((FolderIcon) mLastDragOverView).onDragExit(d.dragInfo);
2738c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung            }
2739976ebec9e31643d3513f9f0de2b433d9aa186ce9Patrick Dubroy        }
2740c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung        mFolderCreationAlarm.cancelAlarm();
274131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
274231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
2743c0dcf597084d00e4c23a7fea5fd0738f6c095a6bAdam Cohen    private void cancelFolderCreation() {
2744c0dcf597084d00e4c23a7fea5fd0738f6c095a6bAdam Cohen        if (mDragFolderRingAnimator != null && mCreateUserFolderOnDrop) {
2745c0dcf597084d00e4c23a7fea5fd0738f6c095a6bAdam Cohen            mDragFolderRingAnimator.animateToNaturalState();
2746c0dcf597084d00e4c23a7fea5fd0738f6c095a6bAdam Cohen        }
2747c0dcf597084d00e4c23a7fea5fd0738f6c095a6bAdam Cohen        mCreateUserFolderOnDrop = false;
2748c0dcf597084d00e4c23a7fea5fd0738f6c095a6bAdam Cohen        mFolderCreationAlarm.cancelAlarm();
2749c0dcf597084d00e4c23a7fea5fd0738f6c095a6bAdam Cohen    }
2750c0dcf597084d00e4c23a7fea5fd0738f6c095a6bAdam Cohen
275119072da7441e07d5e90026d9e9e1b38f11245e44Adam Cohen    class FolderCreationAlarmListener implements OnAlarmListener {
275269ce2e5beaa1a57c7b8fa14a2d6ff0b3abeb93c0Adam Cohen        CellLayout layout;
275369ce2e5beaa1a57c7b8fa14a2d6ff0b3abeb93c0Adam Cohen        int cellX;
275469ce2e5beaa1a57c7b8fa14a2d6ff0b3abeb93c0Adam Cohen        int cellY;
275519072da7441e07d5e90026d9e9e1b38f11245e44Adam Cohen
275669ce2e5beaa1a57c7b8fa14a2d6ff0b3abeb93c0Adam Cohen        public FolderCreationAlarmListener(CellLayout layout, int cellX, int cellY) {
275769ce2e5beaa1a57c7b8fa14a2d6ff0b3abeb93c0Adam Cohen            this.layout = layout;
275869ce2e5beaa1a57c7b8fa14a2d6ff0b3abeb93c0Adam Cohen            this.cellX = cellX;
275969ce2e5beaa1a57c7b8fa14a2d6ff0b3abeb93c0Adam Cohen            this.cellY = cellY;
276019072da7441e07d5e90026d9e9e1b38f11245e44Adam Cohen        }
276119072da7441e07d5e90026d9e9e1b38f11245e44Adam Cohen
276219072da7441e07d5e90026d9e9e1b38f11245e44Adam Cohen        public void onAlarm(Alarm alarm) {
276319072da7441e07d5e90026d9e9e1b38f11245e44Adam Cohen            if (mDragFolderRingAnimator == null) {
276419072da7441e07d5e90026d9e9e1b38f11245e44Adam Cohen                mDragFolderRingAnimator = new FolderRingAnimator(mLauncher, null);
276519072da7441e07d5e90026d9e9e1b38f11245e44Adam Cohen            }
276669ce2e5beaa1a57c7b8fa14a2d6ff0b3abeb93c0Adam Cohen            mDragFolderRingAnimator.setCell(cellX, cellY);
276769ce2e5beaa1a57c7b8fa14a2d6ff0b3abeb93c0Adam Cohen            mDragFolderRingAnimator.setCellLayout(layout);
276819072da7441e07d5e90026d9e9e1b38f11245e44Adam Cohen            mDragFolderRingAnimator.animateToAcceptState();
276969ce2e5beaa1a57c7b8fa14a2d6ff0b3abeb93c0Adam Cohen            layout.showFolderAccept(mDragFolderRingAnimator);
277069ce2e5beaa1a57c7b8fa14a2d6ff0b3abeb93c0Adam Cohen            layout.clearDragOutlines();
277119072da7441e07d5e90026d9e9e1b38f11245e44Adam Cohen            mCreateUserFolderOnDrop = true;
277219072da7441e07d5e90026d9e9e1b38f11245e44Adam Cohen        }
277319072da7441e07d5e90026d9e9e1b38f11245e44Adam Cohen    }
277419072da7441e07d5e90026d9e9e1b38f11245e44Adam Cohen
2775a34abf8c781485b788fddacb352d586bffca886cWinson Chung    @Override
2776a34abf8c781485b788fddacb352d586bffca886cWinson Chung    public void getHitRect(Rect outRect) {
2777a34abf8c781485b788fddacb352d586bffca886cWinson Chung        // We want the workspace to have the whole area of the display (it will find the correct
2778a34abf8c781485b788fddacb352d586bffca886cWinson Chung        // cell layout to drop to in the existing drag/drop logic.
2779a34abf8c781485b788fddacb352d586bffca886cWinson Chung        final Display d = mLauncher.getWindowManager().getDefaultDisplay();
2780a34abf8c781485b788fddacb352d586bffca886cWinson Chung        outRect.set(0, 0, d.getWidth(), d.getHeight());
2781a34abf8c781485b788fddacb352d586bffca886cWinson Chung    }
2782a34abf8c781485b788fddacb352d586bffca886cWinson Chung
27832b9ff37edb3f5965559b3ff7d37e418b4a2917a1Patrick Dubroy    /**
27842b9ff37edb3f5965559b3ff7d37e418b4a2917a1Patrick Dubroy     * Add the item specified by dragInfo to the given layout.
27852b9ff37edb3f5965559b3ff7d37e418b4a2917a1Patrick Dubroy     * @return true if successful
27862b9ff37edb3f5965559b3ff7d37e418b4a2917a1Patrick Dubroy     */
2787120980bd00f5eecec5717f49a3d7db96571025a9Adam Cohen    public boolean addExternalItemToScreen(ItemInfo dragInfo, CellLayout layout) {
2788120980bd00f5eecec5717f49a3d7db96571025a9Adam Cohen        if (layout.findCellForSpan(mTempEstimate, dragInfo.spanX, dragInfo.spanY)) {
2789bbaa75c8c432c46c00ee2eb836e438b3774d6709Patrick Dubroy            onDropExternal(dragInfo.dropPos, (ItemInfo) dragInfo, (CellLayout) layout, false);
27902b9ff37edb3f5965559b3ff7d37e418b4a2917a1Patrick Dubroy            return true;
27912b9ff37edb3f5965559b3ff7d37e418b4a2917a1Patrick Dubroy        }
27920280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka        mLauncher.showOutOfSpaceMessage();
27932b9ff37edb3f5965559b3ff7d37e418b4a2917a1Patrick Dubroy        return false;
27942b9ff37edb3f5965559b3ff7d37e418b4a2917a1Patrick Dubroy    }
27952b9ff37edb3f5965559b3ff7d37e418b4a2917a1Patrick Dubroy
2796d5e42733799817d11d739b0a882da8dda721126dAdam Cohen    private void onDropExternal(int[] touchXY, Object dragInfo,
2797d5e42733799817d11d739b0a882da8dda721126dAdam Cohen            CellLayout cellLayout, boolean insertAtFirst) {
2798e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen        onDropExternal(touchXY, dragInfo, cellLayout, insertAtFirst, null);
2799d5e42733799817d11d739b0a882da8dda721126dAdam Cohen    }
2800d5e42733799817d11d739b0a882da8dda721126dAdam Cohen
2801120980bd00f5eecec5717f49a3d7db96571025a9Adam Cohen    /**
2802120980bd00f5eecec5717f49a3d7db96571025a9Adam Cohen     * Drop an item that didn't originate on one of the workspace screens.
2803120980bd00f5eecec5717f49a3d7db96571025a9Adam Cohen     * It may have come from Launcher (e.g. from all apps or customize), or it may have
2804120980bd00f5eecec5717f49a3d7db96571025a9Adam Cohen     * come from another app altogether.
2805120980bd00f5eecec5717f49a3d7db96571025a9Adam Cohen     *
2806120980bd00f5eecec5717f49a3d7db96571025a9Adam Cohen     * NOTE: This can also be called when we are outside of a drag event, when we want
2807120980bd00f5eecec5717f49a3d7db96571025a9Adam Cohen     * to add an item to one of the workspace screens.
2808120980bd00f5eecec5717f49a3d7db96571025a9Adam Cohen     */
2809557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung    private void onDropExternal(final int[] touchXY, final Object dragInfo,
2810557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung            final CellLayout cellLayout, boolean insertAtFirst, DragObject d) {
2811557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung        final Runnable exitSpringLoadedRunnable = new Runnable() {
2812557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung            @Override
2813557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung            public void run() {
2814557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung                mLauncher.exitSpringLoadedDragModeDelayed(false);
2815557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung            }
2816557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung        };
2817557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung        final int screen = indexOfChild(cellLayout);
281876078c4ef35b6e95fb6d8129a32cf52a36625e28Adam Cohen        if (screen != mCurrentPage && mShrinkState != ShrinkState.SPRING_LOADED) {
281976078c4ef35b6e95fb6d8129a32cf52a36625e28Adam Cohen            snapToPage(screen);
282076078c4ef35b6e95fb6d8129a32cf52a36625e28Adam Cohen        }
28210280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka        if (dragInfo instanceof PendingAddItemInfo) {
2822557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung            final PendingAddItemInfo info = (PendingAddItemInfo) dragInfo;
2823557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung            mLauncher.getDragLayer().animateViewOut(d.dragView, new Runnable() {
2824557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung                @Override
2825557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung                public void run() {
2826557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung                    // When dragging and dropping from customization tray, we deal with creating
2827557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung                    // widgets/shortcuts/folders in a slightly different way
2828557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung                    switch (info.itemType) {
2829557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung                    case LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET:
2830557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung                        mLauncher.addAppWidgetFromDrop((PendingAddWidgetInfo) info, screen, touchXY);
2831557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung                        break;
2832557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung                    case LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT:
2833557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung                        mLauncher.processShortcutFromDrop(info.componentName, screen, touchXY);
2834557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung                        break;
2835557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung                    default:
2836557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung                        throw new IllegalStateException("Unknown item type: " + info.itemType);
2837557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung                    }
2838557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung                    cellLayout.onDragExit();
2839557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung                }
2840557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung            });
28419c6de3d7c3e7d40e1e443b6fd69e3077ab9e9673Michael Jurka        } else {
28429c6de3d7c3e7d40e1e443b6fd69e3077ab9e9673Michael Jurka            // This is for other drag/drop cases, like dragging from All Apps
28439c6de3d7c3e7d40e1e443b6fd69e3077ab9e9673Michael Jurka            ItemInfo info = (ItemInfo) dragInfo;
28449c6de3d7c3e7d40e1e443b6fd69e3077ab9e9673Michael Jurka            View view = null;
284531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
28469c6de3d7c3e7d40e1e443b6fd69e3077ab9e9673Michael Jurka            switch (info.itemType) {
28479c6de3d7c3e7d40e1e443b6fd69e3077ab9e9673Michael Jurka            case LauncherSettings.Favorites.ITEM_TYPE_APPLICATION:
28489c6de3d7c3e7d40e1e443b6fd69e3077ab9e9673Michael Jurka            case LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT:
28499c6de3d7c3e7d40e1e443b6fd69e3077ab9e9673Michael Jurka                if (info.container == NO_ID && info instanceof ApplicationInfo) {
28509c6de3d7c3e7d40e1e443b6fd69e3077ab9e9673Michael Jurka                    // Came from all apps -- make a copy
28519c6de3d7c3e7d40e1e443b6fd69e3077ab9e9673Michael Jurka                    info = new ShortcutInfo((ApplicationInfo) info);
28529c6de3d7c3e7d40e1e443b6fd69e3077ab9e9673Michael Jurka                }
28539c6de3d7c3e7d40e1e443b6fd69e3077ab9e9673Michael Jurka                view = mLauncher.createShortcut(R.layout.application, cellLayout,
28549c6de3d7c3e7d40e1e443b6fd69e3077ab9e9673Michael Jurka                        (ShortcutInfo) info);
28559c6de3d7c3e7d40e1e443b6fd69e3077ab9e9673Michael Jurka                break;
2856df2cc41acbfacd576f99483a4af1cda32ebd3d09Adam Cohen            case LauncherSettings.Favorites.ITEM_TYPE_FOLDER:
2857c0dcf597084d00e4c23a7fea5fd0738f6c095a6bAdam Cohen                view = FolderIcon.fromXml(R.layout.folder_icon, mLauncher, cellLayout,
2858c0dcf597084d00e4c23a7fea5fd0738f6c095a6bAdam Cohen                        (FolderInfo) info, mIconCache);
28599c6de3d7c3e7d40e1e443b6fd69e3077ab9e9673Michael Jurka                break;
28609c6de3d7c3e7d40e1e443b6fd69e3077ab9e9673Michael Jurka            default:
28619c6de3d7c3e7d40e1e443b6fd69e3077ab9e9673Michael Jurka                throw new IllegalStateException("Unknown item type: " + info.itemType);
28629c6de3d7c3e7d40e1e443b6fd69e3077ab9e9673Michael Jurka            }
286331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
2864557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung            int spanX = 1;
2865557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung            int spanY = 1;
2866557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung            if (mDragInfo != null) {
2867557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung                spanX = mDragInfo.spanX;
2868557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung                spanY = mDragInfo.spanY;
2869557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung            } else {
2870557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung                spanX = info.spanX;
2871557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung                spanY = info.spanY;
2872557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung            }
2873557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung
2874c0dcf597084d00e4c23a7fea5fd0738f6c095a6bAdam Cohen            // First we find the cell nearest to point at which the item is
2875c0dcf597084d00e4c23a7fea5fd0738f6c095a6bAdam Cohen            // dropped, without any consideration to whether there is an item there.
2876c0dcf597084d00e4c23a7fea5fd0738f6c095a6bAdam Cohen            if (touchXY != null) {
2877c0dcf597084d00e4c23a7fea5fd0738f6c095a6bAdam Cohen                mTargetCell = findNearestArea((int) touchXY[0], (int) touchXY[1], spanX, spanY,
2878c0dcf597084d00e4c23a7fea5fd0738f6c095a6bAdam Cohen                        cellLayout, mTargetCell);
2879557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung                d.postAnimationRunnable = exitSpringLoadedRunnable;
2880557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung                if (createUserFolderIfNecessary(view, cellLayout, mTargetCell, true, d.dragView,
2881557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung                        d.postAnimationRunnable)) {
2882c0dcf597084d00e4c23a7fea5fd0738f6c095a6bAdam Cohen                    return;
2883c0dcf597084d00e4c23a7fea5fd0738f6c095a6bAdam Cohen                }
28843e8f811f31a2275e778244427271f77f4116c08bAdam Cohen                if (addToExistingFolderIfNecessary(view, cellLayout, mTargetCell, d, true)) {
2885c0dcf597084d00e4c23a7fea5fd0738f6c095a6bAdam Cohen                    return;
2886c0dcf597084d00e4c23a7fea5fd0738f6c095a6bAdam Cohen                }
288710b1737910ea7890ca95bbbe5363fd5aa513b856Adam Cohen            }
288810b1737910ea7890ca95bbbe5363fd5aa513b856Adam Cohen
2889c4e772e4b3f21bde342e475ebc49b5b76b8f74e8Michael Jurka            if (touchXY != null) {
28909c6de3d7c3e7d40e1e443b6fd69e3077ab9e9673Michael Jurka                // when dragging and dropping, just find the closest free spot
2891c0dcf597084d00e4c23a7fea5fd0738f6c095a6bAdam Cohen                mTargetCell = findNearestVacantArea(touchXY[0], touchXY[1], 1, 1, null,
2892c0dcf597084d00e4c23a7fea5fd0738f6c095a6bAdam Cohen                        cellLayout, mTargetCell);
28939c6de3d7c3e7d40e1e443b6fd69e3077ab9e9673Michael Jurka            } else {
28949c6de3d7c3e7d40e1e443b6fd69e3077ab9e9673Michael Jurka                cellLayout.findCellForSpan(mTargetCell, 1, 1);
289531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            }
2896aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung            addInScreen(view, indexOfChild(cellLayout), mTargetCell[0],
2897aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung                    mTargetCell[1], info.spanX, info.spanY, insertAtFirst);
2898716b51e030f9c6ed34af2b947760e46a280c65a6Adam Cohen            cellLayout.onDropChild(view);
2899d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka            cellLayout.animateDrop();
29006569f2c80e179c2f8ed73dae6b01d971ec20f005Patrick Dubroy            CellLayout.LayoutParams lp = (CellLayout.LayoutParams) view.getLayoutParams();
2901d5e42733799817d11d739b0a882da8dda721126dAdam Cohen            cellLayout.getChildrenLayout().measureChild(view);
2902d5e42733799817d11d739b0a882da8dda721126dAdam Cohen
2903af44209bfa60da3c7ab49b7f508f9effd316ee41Michael Jurka            LauncherModel.addOrMoveItemInDatabase(mLauncher, info,
29040280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka                    LauncherSettings.Favorites.CONTAINER_DESKTOP, screen,
2905aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung                    lp.cellX, lp.cellY);
29063e8f811f31a2275e778244427271f77f4116c08bAdam Cohen
29073e8f811f31a2275e778244427271f77f4116c08bAdam Cohen            if (d.dragView != null) {
2908557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung                mLauncher.getDragLayer().animateViewIntoPosition(d.dragView, view,
2909557d6ed50cc6560163440aa134870ef0bb11415bWinson Chung                    exitSpringLoadedRunnable);
29103e8f811f31a2275e778244427271f77f4116c08bAdam Cohen            }
2911af44209bfa60da3c7ab49b7f508f9effd316ee41Michael Jurka        }
291231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
2913aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung
291470864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey    /**
291570864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey     * Return the current {@link CellLayout}, correctly picking the destination
291670864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey     * screen while a scroll is in progress.
291770864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey     */
29185f445425606b2c27276a79e9e871cf7f67b1b719Patrick Dubroy    public CellLayout getCurrentDropLayout() {
29195f445425606b2c27276a79e9e871cf7f67b1b719Patrick Dubroy        return (CellLayout) getChildAt(mNextPage == INVALID_PAGE ? mCurrentPage : mNextPage);
292070864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey    }
292131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
292270864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey    /**
29230280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka     * Return the current CellInfo describing our current drag; this method exists
29240280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka     * so that Launcher can sync this object with the correct info when the activity is created/
29250280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka     * destroyed
29260280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka     *
29270280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka     */
29280280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka    public CellLayout.CellInfo getDragInfo() {
29290280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka        return mDragInfo;
29300280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka    }
29310280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka
29320280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka    /**
293370864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey     * Calculate the nearest cell where the given object would be dropped.
2934e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen     *
2935e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen     * pixelX and pixelY should be in the coordinate system of layout
293670864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey     */
29376a1435d78d5133b1f37274c4d358bf6d22e10229Michael Jurka    private int[] findNearestVacantArea(int pixelX, int pixelY,
293870864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey            int spanX, int spanY, View ignoreView, CellLayout layout, int[] recycle) {
29390280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka        return layout.findNearestVacantArea(
2940e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen                pixelX, pixelY, spanX, spanY, ignoreView, recycle);
294170864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey    }
2942aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung
2943df0353815c629fc678824b07a234b89a1ff94208Adam Cohen    /**
2944df0353815c629fc678824b07a234b89a1ff94208Adam Cohen     * Calculate the nearest cell where the given object would be dropped.
2945e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen     *
2946e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen     * pixelX and pixelY should be in the coordinate system of layout
2947df0353815c629fc678824b07a234b89a1ff94208Adam Cohen     */
2948df0353815c629fc678824b07a234b89a1ff94208Adam Cohen    private int[] findNearestArea(int pixelX, int pixelY,
2949e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen            int spanX, int spanY, CellLayout layout, int[] recycle) {
2950df0353815c629fc678824b07a234b89a1ff94208Adam Cohen        return layout.findNearestArea(
2951e3e27a854f3eca363d3c5ce353d19de475272d87Adam Cohen                pixelX, pixelY, spanX, spanY, recycle);
2952df0353815c629fc678824b07a234b89a1ff94208Adam Cohen    }
2953df0353815c629fc678824b07a234b89a1ff94208Adam Cohen
29544c98d9235d164680186180974719f551cf935d08Winson Chung    void setup(Launcher launcher, DragController dragController) {
295531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        mLauncher = launcher;
2956c2f7f4794867cd1b3e97fd0f379ad8ad15958a6cMichael Jurka        mSpringLoadedDragController = new SpringLoadedDragController(mLauncher);
295700acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato        mDragController = dragController;
295831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
295931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
2960e3887cc4ec3cebda2333298e56a35acb49ccdf13Patrick Dubroy    /**
2961e3887cc4ec3cebda2333298e56a35acb49ccdf13Patrick Dubroy     * Called at the end of a drag which originated on the workspace.
2962e3887cc4ec3cebda2333298e56a35acb49ccdf13Patrick Dubroy     */
2963c0dcf597084d00e4c23a7fea5fd0738f6c095a6bAdam Cohen    public void onDropCompleted(View target, DragObject d, boolean success) {
2964aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung        if (success) {
296531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            if (target != this && mDragInfo != null) {
296631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                final CellLayout cellLayout = (CellLayout) getChildAt(mDragInfo.screen);
296731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                cellLayout.removeView(mDragInfo.cell);
296800acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato                if (mDragInfo.cell instanceof DropTarget) {
2969c0dcf597084d00e4c23a7fea5fd0738f6c095a6bAdam Cohen                    mDragController.removeDropTarget((DropTarget) mDragInfo.cell);
297000acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato                }
2971aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung                // final Object tag = mDragInfo.cell.getTag();
297231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            }
2973ce34a9768b01115def95f000a6a8f35870f10d3aPatrick Dubroy        } else if (mDragInfo != null) {
2974e3887cc4ec3cebda2333298e56a35acb49ccdf13Patrick Dubroy            // NOTE: When 'success' is true, onDragExit is called by the DragController before
2975e3887cc4ec3cebda2333298e56a35acb49ccdf13Patrick Dubroy            // calling onDropCompleted(). We call it ourselves here, but maybe this should be
2976e3887cc4ec3cebda2333298e56a35acb49ccdf13Patrick Dubroy            // moved into DragController.cancelDrag().
2977c0dcf597084d00e4c23a7fea5fd0738f6c095a6bAdam Cohen            doDragExit(null);
2978716b51e030f9c6ed34af2b947760e46a280c65a6Adam Cohen            ((CellLayout) getChildAt(mDragInfo.screen)).onDropChild(mDragInfo.cell);
297931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
2980400438b79fe412cb625c96297edeea9c6155349eWinson Chung        mLauncher.unlockScreenOrientation();
29814be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato        mDragOutline = null;
298231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        mDragInfo = null;
298331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
298431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
2985a669d79d0dcf034651ce305a8cd334272bec3374Patrick Dubroy    @Override
2986a669d79d0dcf034651ce305a8cd334272bec3374Patrick Dubroy    public void onDragViewVisible() {
2987a669d79d0dcf034651ce305a8cd334272bec3374Patrick Dubroy        ((View) mDragInfo.cell).setVisibility(View.GONE);
2988a669d79d0dcf034651ce305a8cd334272bec3374Patrick Dubroy    }
2989a669d79d0dcf034651ce305a8cd334272bec3374Patrick Dubroy
29900280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka    public boolean isDropEnabled() {
29910280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka        return true;
29920280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka    }
29930280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka
29940142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka    @Override
29950142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka    protected void onRestoreInstanceState(Parcelable state) {
29960142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka        super.onRestoreInstanceState(state);
29970142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka        Launcher.setScreen(mCurrentPage);
29980142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka    }
29990142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka
30000142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka    @Override
300131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    public void scrollLeft() {
3002c0e8fcae492730210b2b8b6d5bb3d65636bad245Michael Jurka        if (!mIsSmall && !mIsInUnshrinkAnimation) {
30030142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka            super.scrollLeft();
300431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
300595bb800de9b0142bea0110b074eddbcf0e475736Adam Cohen        Folder openFolder = getOpenFolder();
300695bb800de9b0142bea0110b074eddbcf0e475736Adam Cohen        if (openFolder != null) {
300795bb800de9b0142bea0110b074eddbcf0e475736Adam Cohen            openFolder.completeDragExit();
300895bb800de9b0142bea0110b074eddbcf0e475736Adam Cohen        }
300931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
301031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
30110142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka    @Override
301231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    public void scrollRight() {
3013c0e8fcae492730210b2b8b6d5bb3d65636bad245Michael Jurka        if (!mIsSmall && !mIsInUnshrinkAnimation) {
30140142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka            super.scrollRight();
301531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
301695bb800de9b0142bea0110b074eddbcf0e475736Adam Cohen        Folder openFolder = getOpenFolder();
301795bb800de9b0142bea0110b074eddbcf0e475736Adam Cohen        if (openFolder != null) {
301895bb800de9b0142bea0110b074eddbcf0e475736Adam Cohen            openFolder.completeDragExit();
301995bb800de9b0142bea0110b074eddbcf0e475736Adam Cohen        }
302031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
3021138a04170d964da9cdec228e95b976875ae52481Karl Rosaen
30221262e369484ce7f2565655ed80e6299232c70bd7Patrick Dubroy    @Override
30231262e369484ce7f2565655ed80e6299232c70bd7Patrick Dubroy    public void onEnterScrollArea(int direction) {
3024d718d6a7ba424b600052a147e5633a201a04ccb7Michael Jurka        if (!mIsSmall && !mIsInUnshrinkAnimation) {
3025d718d6a7ba424b600052a147e5633a201a04ccb7Michael Jurka            mInScrollArea = true;
302654fa3b95557c283976e8c1aa8a157b460b0b4513Patrick Dubroy
302754fa3b95557c283976e8c1aa8a157b460b0b4513Patrick Dubroy            final int page = mCurrentPage + (direction == DragController.SCROLL_LEFT ? -1 : 1);
302854fa3b95557c283976e8c1aa8a157b460b0b4513Patrick Dubroy            final CellLayout layout = (CellLayout) getChildAt(page);
3029c0dcf597084d00e4c23a7fea5fd0738f6c095a6bAdam Cohen            cancelFolderCreation();
303054fa3b95557c283976e8c1aa8a157b460b0b4513Patrick Dubroy
303154fa3b95557c283976e8c1aa8a157b460b0b4513Patrick Dubroy            if (layout != null) {
3032c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung                // Exit the current layout and mark the overlapping layout
30330207c522472d7252f146f4d39efa456ca5248c6bPatrick Dubroy                if (mDragTargetLayout != null) {
3034c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung                    mDragTargetLayout.setIsDragOverlapping(false);
30350207c522472d7252f146f4d39efa456ca5248c6bPatrick Dubroy                    mDragTargetLayout.onDragExit();
30360207c522472d7252f146f4d39efa456ca5248c6bPatrick Dubroy                }
3037c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung                mDragTargetLayout = layout;
3038c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung                mDragTargetLayout.setIsDragOverlapping(true);
303970b9530f3147663d38875260b48d931793b7d378Patrick Dubroy
3040c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung                // Workspace is responsible for drawing the edge glow on adjacent pages,
3041c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung                // so we need to redraw the workspace when this may have changed.
3042c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung                invalidate();
3043c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung            }
304470b9530f3147663d38875260b48d931793b7d378Patrick Dubroy        }
304508ae2ec4847a971ad1b19c163e3a0d6307a8ed72Patrick Dubroy    }
304608ae2ec4847a971ad1b19c163e3a0d6307a8ed72Patrick Dubroy
30471262e369484ce7f2565655ed80e6299232c70bd7Patrick Dubroy    @Override
30481262e369484ce7f2565655ed80e6299232c70bd7Patrick Dubroy    public void onExitScrollArea() {
3049d718d6a7ba424b600052a147e5633a201a04ccb7Michael Jurka        if (mInScrollArea) {
3050c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung            if (mDragTargetLayout != null) {
3051c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung                // Unmark the overlapping layout and re-enter the current layout
3052c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung                mDragTargetLayout.setIsDragOverlapping(false);
3053c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung                mDragTargetLayout = getCurrentDropLayout();
3054c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung                mDragTargetLayout.onDragEnter();
3055c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung
3056c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung                // Workspace is responsible for drawing the edge glow on adjacent pages,
3057c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung                // so we need to redraw the workspace when this may have changed.
3058c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung                invalidate();
3059c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung            }
3060c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung            mInScrollArea = false;
3061c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung        }
3062c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung    }
3063c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung
3064c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung    private void onResetScrollArea() {
3065c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung        if (mDragTargetLayout != null) {
3066c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung            // Unmark the overlapping layout
3067c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung            mDragTargetLayout.setIsDragOverlapping(false);
3068c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung
3069c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung            // Workspace is responsible for drawing the edge glow on adjacent pages,
3070c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung            // so we need to redraw the workspace when this may have changed.
3071c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung            invalidate();
30721262e369484ce7f2565655ed80e6299232c70bd7Patrick Dubroy        }
3073c07918d0053fc7d2a19d7b013565a5d2e7d4af51Winson Chung        mInScrollArea = false;
30741262e369484ce7f2565655ed80e6299232c70bd7Patrick Dubroy    }
30751262e369484ce7f2565655ed80e6299232c70bd7Patrick Dubroy
307631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    public Folder getFolderForTag(Object tag) {
3077dee0589388ba0f6373912e18bf86243282fb3b9bMichael Jurka        final int screenCount = getChildCount();
307831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        for (int screen = 0; screen < screenCount; screen++) {
30796e3140865d3f0def2e55934d8b0b2c1503386e54Winson Chung            ViewGroup currentScreen = ((CellLayout) getChildAt(screen)).getChildrenLayout();
308031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            int count = currentScreen.getChildCount();
308131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            for (int i = 0; i < count; i++) {
308231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                View child = currentScreen.getChildAt(i);
308331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                CellLayout.LayoutParams lp = (CellLayout.LayoutParams) child.getLayoutParams();
308431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                if (lp.cellHSpan == 4 && lp.cellVSpan == 4 && child instanceof Folder) {
308531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                    Folder f = (Folder) child;
3086aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung                    if (f.getInfo() == tag && f.getInfo().opened) {
308731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                        return f;
308831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                    }
308931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                }
309031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            }
309131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
309231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        return null;
309331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
309431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
309531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    public View getViewForTag(Object tag) {
309631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        int screenCount = getChildCount();
309731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        for (int screen = 0; screen < screenCount; screen++) {
30986e3140865d3f0def2e55934d8b0b2c1503386e54Winson Chung            ViewGroup currentScreen = ((CellLayout) getChildAt(screen)).getChildrenLayout();
309931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            int count = currentScreen.getChildCount();
310031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            for (int i = 0; i < count; i++) {
310131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                View child = currentScreen.getChildAt(i);
310231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                if (child.getTag() == tag) {
310331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                    return child;
310431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                }
310531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            }
310631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
310731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        return null;
310831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
310931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
3110df0353815c629fc678824b07a234b89a1ff94208Adam Cohen    void clearDropTargets() {
3111df0353815c629fc678824b07a234b89a1ff94208Adam Cohen        final int screenCount = getChildCount();
3112df0353815c629fc678824b07a234b89a1ff94208Adam Cohen
3113df0353815c629fc678824b07a234b89a1ff94208Adam Cohen        for (int i = 0; i < screenCount; i++) {
3114df0353815c629fc678824b07a234b89a1ff94208Adam Cohen            final CellLayout layoutParent = (CellLayout) getChildAt(i);
3115df0353815c629fc678824b07a234b89a1ff94208Adam Cohen            final ViewGroup layout = layoutParent.getChildrenLayout();
3116df0353815c629fc678824b07a234b89a1ff94208Adam Cohen            int childCount = layout.getChildCount();
3117df0353815c629fc678824b07a234b89a1ff94208Adam Cohen            for (int j = 0; j < childCount; j++) {
3118df0353815c629fc678824b07a234b89a1ff94208Adam Cohen                View v = layout.getChildAt(j);
3119df0353815c629fc678824b07a234b89a1ff94208Adam Cohen                if (v instanceof DropTarget) {
3120df0353815c629fc678824b07a234b89a1ff94208Adam Cohen                    mDragController.removeDropTarget((DropTarget) v);
3121df0353815c629fc678824b07a234b89a1ff94208Adam Cohen                }
3122df0353815c629fc678824b07a234b89a1ff94208Adam Cohen            }
3123df0353815c629fc678824b07a234b89a1ff94208Adam Cohen        }
3124df0353815c629fc678824b07a234b89a1ff94208Adam Cohen    }
312531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
312664e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato    void removeItems(final ArrayList<ApplicationInfo> apps) {
3127dee0589388ba0f6373912e18bf86243282fb3b9bMichael Jurka        final int screenCount = getChildCount();
3128629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy        final AppWidgetManager widgets = AppWidgetManager.getInstance(getContext());
3129574d20ec84551370987dde530c27ec493bdef564Romain Guy
313064e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato        final HashSet<String> packageNames = new HashSet<String>();
313164e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato        final int appCount = apps.size();
313264e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato        for (int i = 0; i < appCount; i++) {
313364e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato            packageNames.add(apps.get(i).componentName.getPackageName());
313464e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato        }
313564e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato
3136dee0589388ba0f6373912e18bf86243282fb3b9bMichael Jurka        for (int i = 0; i < screenCount; i++) {
31377a25a9e39a13df706daeb0a4a82273f3c5151997Winson Chung            final CellLayout layoutParent = (CellLayout) getChildAt(i);
31387a25a9e39a13df706daeb0a4a82273f3c5151997Winson Chung            final ViewGroup layout = layoutParent.getChildrenLayout();
3139629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy
3140629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy            // Avoid ANRs by treating each screen separately
3141629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy            post(new Runnable() {
3142629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                public void run() {
3143629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                    final ArrayList<View> childrenToRemove = new ArrayList<View>();
3144629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                    childrenToRemove.clear();
3145aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung
3146629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                    int childCount = layout.getChildCount();
3147629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                    for (int j = 0; j < childCount; j++) {
3148629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                        final View view = layout.getChildAt(j);
3149629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                        Object tag = view.getTag();
3150aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung
31510589f0f66ce498512c6ee47482c649d88294c9d0Joe Onorato                        if (tag instanceof ShortcutInfo) {
31520589f0f66ce498512c6ee47482c649d88294c9d0Joe Onorato                            final ShortcutInfo info = (ShortcutInfo) tag;
3153629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                            final Intent intent = info.intent;
3154629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                            final ComponentName name = intent.getComponent();
3155aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung
315664e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato                            if (Intent.ACTION_MAIN.equals(intent.getAction()) && name != null) {
315764e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato                                for (String packageName: packageNames) {
315864e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato                                    if (packageName.equals(name.getPackageName())) {
315964e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato                                        LauncherModel.deleteItemFromDatabase(mLauncher, info);
316064e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato                                        childrenToRemove.add(view);
316164e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato                                    }
316264e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato                                }
3163629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                            }
3164df2cc41acbfacd576f99483a4af1cda32ebd3d09Adam Cohen                        } else if (tag instanceof FolderInfo) {
3165df2cc41acbfacd576f99483a4af1cda32ebd3d09Adam Cohen                            final FolderInfo info = (FolderInfo) tag;
31660589f0f66ce498512c6ee47482c649d88294c9d0Joe Onorato                            final ArrayList<ShortcutInfo> contents = info.contents;
3167629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                            final int contentsCount = contents.size();
3168df1e4e868a1970b756486dadd652651d40276d36Adam Cohen                            final ArrayList<ShortcutInfo> appsToRemoveFromFolder =
3169df1e4e868a1970b756486dadd652651d40276d36Adam Cohen                                    new ArrayList<ShortcutInfo>();
3170aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung
3171629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                            for (int k = 0; k < contentsCount; k++) {
31720589f0f66ce498512c6ee47482c649d88294c9d0Joe Onorato                                final ShortcutInfo appInfo = contents.get(k);
3173629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                                final Intent intent = appInfo.intent;
3174629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                                final ComponentName name = intent.getComponent();
3175aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung
317664e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato                                if (Intent.ACTION_MAIN.equals(intent.getAction()) && name != null) {
317764e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato                                    for (String packageName: packageNames) {
317864e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato                                        if (packageName.equals(name.getPackageName())) {
3179df1e4e868a1970b756486dadd652651d40276d36Adam Cohen                                            appsToRemoveFromFolder.add(appInfo);
318064e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato                                        }
318164e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato                                    }
3182629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                                }
3183629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                            }
3184df1e4e868a1970b756486dadd652651d40276d36Adam Cohen                            for (ShortcutInfo item: appsToRemoveFromFolder) {
3185df1e4e868a1970b756486dadd652651d40276d36Adam Cohen                                info.remove(item);
3186df1e4e868a1970b756486dadd652651d40276d36Adam Cohen                                LauncherModel.deleteItemFromDatabase(mLauncher, item);
3187629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                            }
3188629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                        } else if (tag instanceof LauncherAppWidgetInfo) {
3189629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                            final LauncherAppWidgetInfo info = (LauncherAppWidgetInfo) tag;
3190629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                            final AppWidgetProviderInfo provider =
3191629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                                    widgets.getAppWidgetInfo(info.appWidgetId);
3192e1cc6c3745c9ba721b6ab888d74c9d9e1d13ea6aDaniel Sandler                            if (provider != null) {
319364e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato                                for (String packageName: packageNames) {
319464e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato                                    if (packageName.equals(provider.provider.getPackageName())) {
319564e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato                                        LauncherModel.deleteItemFromDatabase(mLauncher, info);
3196aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung                                        childrenToRemove.add(view);
319764e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato                                    }
319864e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato                                }
3199629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                            }
3200574d20ec84551370987dde530c27ec493bdef564Romain Guy                        }
3201574d20ec84551370987dde530c27ec493bdef564Romain Guy                    }
3202aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung
3203629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                    childCount = childrenToRemove.size();
3204629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                    for (int j = 0; j < childCount; j++) {
3205629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                        View child = childrenToRemove.get(j);
32067a25a9e39a13df706daeb0a4a82273f3c5151997Winson Chung                        // Note: We can not remove the view directly from CellLayoutChildren as this
32077a25a9e39a13df706daeb0a4a82273f3c5151997Winson Chung                        // does not re-mark the spaces as unoccupied.
32087a25a9e39a13df706daeb0a4a82273f3c5151997Winson Chung                        layoutParent.removeViewInLayout(child);
3209629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                        if (child instanceof DropTarget) {
3210629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                            mDragController.removeDropTarget((DropTarget)child);
3211629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                        }
3212574d20ec84551370987dde530c27ec493bdef564Romain Guy                    }
3213aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung
3214629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                    if (childCount > 0) {
3215629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                        layout.requestLayout();
3216629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                        layout.invalidate();
32175c16f3ecd6b47bff3abbe40deb3d39c66a3b0012Romain Guy                    }
321831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                }
3219629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy            });
322031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
322131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
3222f96811cdf564469a7a654a0c876288c9fd14f35eThe Android Open Source Project
322364e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato    void updateShortcuts(ArrayList<ApplicationInfo> apps) {
3224dee0589388ba0f6373912e18bf86243282fb3b9bMichael Jurka        final int screenCount = getChildCount();
3225dee0589388ba0f6373912e18bf86243282fb3b9bMichael Jurka        for (int i = 0; i < screenCount; i++) {
32266e3140865d3f0def2e55934d8b0b2c1503386e54Winson Chung            final ViewGroup layout = ((CellLayout) getChildAt(i)).getChildrenLayout();
3227f96811cdf564469a7a654a0c876288c9fd14f35eThe Android Open Source Project            int childCount = layout.getChildCount();
3228f96811cdf564469a7a654a0c876288c9fd14f35eThe Android Open Source Project            for (int j = 0; j < childCount; j++) {
3229f96811cdf564469a7a654a0c876288c9fd14f35eThe Android Open Source Project                final View view = layout.getChildAt(j);
3230f96811cdf564469a7a654a0c876288c9fd14f35eThe Android Open Source Project                Object tag = view.getTag();
32310589f0f66ce498512c6ee47482c649d88294c9d0Joe Onorato                if (tag instanceof ShortcutInfo) {
32320589f0f66ce498512c6ee47482c649d88294c9d0Joe Onorato                    ShortcutInfo info = (ShortcutInfo)tag;
3233f96811cdf564469a7a654a0c876288c9fd14f35eThe Android Open Source Project                    // We need to check for ACTION_MAIN otherwise getComponent() might
3234f96811cdf564469a7a654a0c876288c9fd14f35eThe Android Open Source Project                    // return null for some shortcuts (for instance, for shortcuts to
3235f96811cdf564469a7a654a0c876288c9fd14f35eThe Android Open Source Project                    // web pages.)
3236f96811cdf564469a7a654a0c876288c9fd14f35eThe Android Open Source Project                    final Intent intent = info.intent;
3237f96811cdf564469a7a654a0c876288c9fd14f35eThe Android Open Source Project                    final ComponentName name = intent.getComponent();
3238f96811cdf564469a7a654a0c876288c9fd14f35eThe Android Open Source Project                    if (info.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPLICATION &&
323964e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato                            Intent.ACTION_MAIN.equals(intent.getAction()) && name != null) {
324064e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato                        final int appCount = apps.size();
3241aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung                        for (int k = 0; k < appCount; k++) {
324264e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato                            ApplicationInfo app = apps.get(k);
324364e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato                            if (app.componentName.equals(name)) {
324464e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato                                info.setIcon(mIconCache.getIcon(info.intent));
324564e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato                                ((TextView)view).setCompoundDrawablesWithIntrinsicBounds(null,
324664e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato                                        new FastBitmapDrawable(info.getIcon(mIconCache)),
324764e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato                                        null, null);
324864e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato                                }
324964e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato                        }
3250f96811cdf564469a7a654a0c876288c9fd14f35eThe Android Open Source Project                    }
3251f96811cdf564469a7a654a0c876288c9fd14f35eThe Android Open Source Project                }
3252f96811cdf564469a7a654a0c876288c9fd14f35eThe Android Open Source Project            }
3253f96811cdf564469a7a654a0c876288c9fd14f35eThe Android Open Source Project        }
3254f96811cdf564469a7a654a0c876288c9fd14f35eThe Android Open Source Project    }
3255f96811cdf564469a7a654a0c876288c9fd14f35eThe Android Open Source Project
325614f122bf847e50a3e7730ccbe57abc25d086a01bJoe Onorato    void moveToDefaultScreen(boolean animate) {
3257c0e8fcae492730210b2b8b6d5bb3d65636bad245Michael Jurka        if (mIsSmall || mIsInUnshrinkAnimation) {
3258c0e8fcae492730210b2b8b6d5bb3d65636bad245Michael Jurka            mLauncher.showWorkspace(animate, (CellLayout)getChildAt(mDefaultPage));
3259c0e8fcae492730210b2b8b6d5bb3d65636bad245Michael Jurka        } else if (animate) {
3260c0e8fcae492730210b2b8b6d5bb3d65636bad245Michael Jurka            snapToPage(mDefaultPage);
3261c45b16862918a0c6c253bba12032165b030565afJoe Onorato        } else {
32620142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka            setCurrentPage(mDefaultPage);
3263c45b16862918a0c6c253bba12032165b030565afJoe Onorato        }
32640142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka        getChildAt(mDefaultPage).requestFocus();
326531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
326631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
32670142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka    @Override
32680142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka    public void syncPages() {
32690142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka    }
327031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
32710142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka    @Override
32720142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka    public void syncPageItems(int page) {
327331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
32746a0f57dfafced837a2a282d8feec28d5418be3b9Winson Chung
32756a0f57dfafced837a2a282d8feec28d5418be3b9Winson Chung    @Override
32766a0f57dfafced837a2a282d8feec28d5418be3b9Winson Chung    protected String getCurrentPageDescription() {
32776a0f57dfafced837a2a282d8feec28d5418be3b9Winson Chung        int page = (mNextPage != INVALID_PAGE) ? mNextPage : mCurrentPage;
32786a0f57dfafced837a2a282d8feec28d5418be3b9Winson Chung        return String.format(mContext.getString(R.string.workspace_scroll_format),
32796a0f57dfafced837a2a282d8feec28d5418be3b9Winson Chung                page + 1, getChildCount());
32806a0f57dfafced837a2a282d8feec28d5418be3b9Winson Chung    }
32818dfcba4af7a7ece09e8c7d96053e54f3a383e905Adam Cohen
32828dfcba4af7a7ece09e8c7d96053e54f3a383e905Adam Cohen    public void getLocationInDragLayer(int[] loc) {
32838dfcba4af7a7ece09e8c7d96053e54f3a383e905Adam Cohen        mLauncher.getDragLayer().getLocationInDragLayer(this, loc);
32848dfcba4af7a7ece09e8c7d96053e54f3a383e905Adam Cohen    }
328531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project}
3286