Workspace.java revision a0aa0121b91fde17e427ab2763ce312e64cf5d33
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
198edd75c8bb0729a10cb39f614183e3e9ae4288e8Michael Jurkaimport com.android.launcher.R;
208edd75c8bb0729a10cb39f614183e3e9ae4288e8Michael Jurkaimport com.android.launcher2.InstallWidgetReceiver.WidgetMimeTypeHandlerData;
21495f2892288504f4ab87e62957b3f71144dd73c2Adam Powell
220280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurkaimport android.animation.Animator;
238edd75c8bb0729a10cb39f614183e3e9ae4288e8Michael Jurkaimport android.animation.AnimatorListenerAdapter;
24b1254a6bdb11024042fb6c27e179210c1bbd6e1cChet Haaseimport android.animation.AnimatorSet;
250280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurkaimport android.animation.ObjectAnimator;
26cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroyimport android.animation.TimeInterpolator;
27cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroyimport android.animation.ValueAnimator;
288edd75c8bb0729a10cb39f614183e3e9ae4288e8Michael Jurkaimport android.animation.Animator.AnimatorListener;
29cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroyimport android.animation.ValueAnimator.AnimatorUpdateListener;
3068846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chungimport android.app.AlertDialog;
318f573952b8729b4319043ae0908997ecd2d68951Dianne Hackbornimport android.app.WallpaperManager;
32629de3ef739883c0962423cc0c3a26299f162d3dRomain Guyimport android.appwidget.AppWidgetManager;
33629de3ef739883c0962423cc0c3a26299f162d3dRomain Guyimport android.appwidget.AppWidgetProviderInfo;
34a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chungimport android.content.ClipData;
35a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chungimport android.content.ClipDescription;
36495f2892288504f4ab87e62957b3f71144dd73c2Adam Powellimport android.content.ComponentName;
3731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Projectimport android.content.Context;
3831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Projectimport android.content.Intent;
39495f2892288504f4ab87e62957b3f71144dd73c2Adam Powellimport android.content.pm.PackageManager;
405c16f3ecd6b47bff3abbe40deb3d39c66a3b0012Romain Guyimport android.content.pm.ProviderInfo;
417247f6315baf16eacb3286f21bd80321385c1defPatrick Dubroyimport android.content.res.Resources;
4231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Projectimport android.content.res.TypedArray;
434be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onoratoimport android.graphics.Bitmap;
446b879f0a5885274a85333531e091283405d490ccAdam Lesinskiimport android.graphics.Camera;
4531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Projectimport android.graphics.Canvas;
46a63c452f5bd491ba9b28c332ccedc6c6c7e2f3ccMichael Jurkaimport android.graphics.Matrix;
47a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chungimport android.graphics.Paint;
4831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Projectimport android.graphics.Rect;
49a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chungimport android.graphics.RectF;
504be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onoratoimport android.graphics.Region.Op;
51f96811cdf564469a7a654a0c876288c9fd14f35eThe Android Open Source Projectimport android.graphics.drawable.Drawable;
525c16f3ecd6b47bff3abbe40deb3d39c66a3b0012Romain Guyimport android.net.Uri;
53956091ba7863bd72086275e61084864994dd6fa7Joe Onoratoimport android.os.IBinder;
54495f2892288504f4ab87e62957b3f71144dd73c2Adam Powellimport android.os.Parcelable;
5531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Projectimport android.util.AttributeSet;
56291ad12232c98e383d44d76ffe09e97e204c61bcDaniel Sandlerimport android.util.Log;
57580e27748137ff08599aa719d106b31215a28353Winson Chungimport android.util.Pair;
58a34abf8c781485b788fddacb352d586bffca886cWinson Chungimport android.view.Display;
59a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chungimport android.view.DragEvent;
6031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Projectimport android.view.MotionEvent;
6131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Projectimport android.view.View;
626e3140865d3f0def2e55934d8b0b2c1503386e54Winson Chungimport android.view.ViewGroup;
63cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroyimport android.view.animation.DecelerateInterpolator;
643c38d561e6976ffc54eda61ed669870bbb8ec207Michael Jurkaimport android.widget.TabHost;
653c38d561e6976ffc54eda61ed669870bbb8ec207Michael Jurkaimport android.widget.TabWidget;
66f96811cdf564469a7a654a0c876288c9fd14f35eThe Android Open Source Projectimport android.widget.TextView;
67a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chungimport android.widget.Toast;
6831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
698edd75c8bb0729a10cb39f614183e3e9ae4288e8Michael Jurkaimport java.util.ArrayList;
708edd75c8bb0729a10cb39f614183e3e9ae4288e8Michael Jurkaimport java.util.HashSet;
718edd75c8bb0729a10cb39f614183e3e9ae4288e8Michael Jurkaimport java.util.List;
72edcce099c98a6c40d10109ac092ab50f9d2668f3Romain Guy
7331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project/**
740142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka * The workspace is a wide area with a wallpaper and a finite number of pages.
750142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka * Each page contains a number of icons, folders or widgets the user can
76aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung * interact with. A workspace is meant to be used with a fixed width only.
7731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project */
780142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurkapublic class Workspace extends SmoothPagedView
79dee0589388ba0f6373912e18bf86243282fb3b9bMichael Jurka        implements DropTarget, DragSource, DragScroller, View.OnTouchListener {
80e47f55c30b9c24f01f2be861247c92f17fbe4a61Romain Guy    @SuppressWarnings({"UnusedDeclaration"})
813a8820bdbad90642cf5cda4b00a8c92ecb699159Joe Onorato    private static final String TAG = "Launcher.Workspace";
820142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka
83dee0589388ba0f6373912e18bf86243282fb3b9bMichael Jurka    // This is how much the workspace shrinks when we enter all apps or
84dee0589388ba0f6373912e18bf86243282fb3b9bMichael Jurka    // customization mode
85dee0589388ba0f6373912e18bf86243282fb3b9bMichael Jurka    private static final float SHRINK_FACTOR = 0.16f;
86a985e598f6071f4caca15ba3cb6b2cd3e38b217dAdam Cohen
87d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka    // How much the screens shrink when we enter spring loaded drag mode
88d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka    private static final float SPRING_LOADED_DRAG_SHRINK_FACTOR = 0.7f;
89d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka
90f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen    // Y rotation to apply to the workspace screens
91f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen    private static final float WORKSPACE_ROTATION = 12.5f;
92a985e598f6071f4caca15ba3cb6b2cd3e38b217dAdam Cohen
93a985e598f6071f4caca15ba3cb6b2cd3e38b217dAdam Cohen    // These are extra scale factors to apply to the mini home screens
94a985e598f6071f4caca15ba3cb6b2cd3e38b217dAdam Cohen    // so as to achieve the desired transform
951b0aaac0b3abd777ed319341f95a8dfff23c79f4Adam Cohen    private static final float EXTRA_SCALE_FACTOR_0 = 0.972f;
96a985e598f6071f4caca15ba3cb6b2cd3e38b217dAdam Cohen    private static final float EXTRA_SCALE_FACTOR_1 = 1.0f;
971b0aaac0b3abd777ed319341f95a8dfff23c79f4Adam Cohen    private static final float EXTRA_SCALE_FACTOR_2 = 1.10f;
98a985e598f6071f4caca15ba3cb6b2cd3e38b217dAdam Cohen
9968d739365bf650fe7fecf99cd3bfe63a0d41bd12Adam Cohen    private static final int CHILDREN_OUTLINE_FADE_OUT_DELAY = 0;
10068d739365bf650fe7fecf99cd3bfe63a0d41bd12Adam Cohen    private static final int CHILDREN_OUTLINE_FADE_OUT_DURATION = 375;
1019171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung    private static final int CHILDREN_OUTLINE_FADE_IN_DURATION = 100;
102f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen
103f135c6c364e92cddb84c1b4a94ed535214b712a6Winson Chung    private static final int BACKGROUND_FADE_OUT_DURATION = 350;
1049171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung    private static final int BACKGROUND_FADE_IN_DURATION = 350;
1059171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung
1069171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung    // These animators are used to fade the children's outlines
1079171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung    private ObjectAnimator mChildrenOutlineFadeInAnimation;
1089171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung    private ObjectAnimator mChildrenOutlineFadeOutAnimation;
1099171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung    private float mChildrenOutlineAlpha = 0;
1109171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung
1119171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung    // These properties refer to the background protection gradient used for AllApps and Customize
112e0f5a61a1f105216b0067124bacac69194c0ef70Michael Jurka    private ValueAnimator mBackgroundFadeInAnimation;
113e0f5a61a1f105216b0067124bacac69194c0ef70Michael Jurka    private ValueAnimator mBackgroundFadeOutAnimation;
1149171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung    private Drawable mBackground;
1158d006d5e144ae33e509ea42e0b9760ef6c5bc884Winson Chung    private Drawable mCustomizeTrayBackground;
1168d006d5e144ae33e509ea42e0b9760ef6c5bc884Winson Chung    private boolean mDrawCustomizeTrayBackground;
117f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen    private float mBackgroundAlpha = 0;
11868d739365bf650fe7fecf99cd3bfe63a0d41bd12Adam Cohen    private float mOverScrollMaxBackgroundAlpha = 0.0f;
119e0f66b546994a9bdee452851c17a148db02ec300Adam Cohen    private int mOverScrollPageIndex = -1;
120f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen
12188127038178b3bbf0eb91103a31e682cc0615074Winson Chung    private View mCustomizationDrawer;
12288127038178b3bbf0eb91103a31e682cc0615074Winson Chung    private View mCustomizationDrawerContent;
12388127038178b3bbf0eb91103a31e682cc0615074Winson Chung    private int[] mCustomizationDrawerPos = new int[2];
12488127038178b3bbf0eb91103a31e682cc0615074Winson Chung    private float[] mCustomizationDrawerTransformedPos = new float[2];
12588127038178b3bbf0eb91103a31e682cc0615074Winson Chung
1268f573952b8729b4319043ae0908997ecd2d68951Dianne Hackborn    private final WallpaperManager mWallpaperManager;
127aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung
1280142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka    private int mDefaultPage;
12931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
130d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka    private boolean mIsDragInProcess = false;
13121f12b52a54d2658ed14fcf7bb1ca17a198f62beAdam Cohen
13231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    /**
13331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * CellInfo for the cell that is currently being dragged
13431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     */
13531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    private CellLayout.CellInfo mDragInfo;
136aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung
13770864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey    /**
13870864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey     * Target drop area calculated during last acceptDrop call.
13970864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey     */
14070864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey    private int[] mTargetCell = null;
14131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
1426569f2c80e179c2f8ed73dae6b01d971ec20f005Patrick Dubroy    /**
1436569f2c80e179c2f8ed73dae6b01d971ec20f005Patrick Dubroy     * The CellLayout that is currently being dragged over
1446569f2c80e179c2f8ed73dae6b01d971ec20f005Patrick Dubroy     */
1456569f2c80e179c2f8ed73dae6b01d971ec20f005Patrick Dubroy    private CellLayout mDragTargetLayout = null;
1466569f2c80e179c2f8ed73dae6b01d971ec20f005Patrick Dubroy
14731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    private Launcher mLauncher;
1480589f0f66ce498512c6ee47482c649d88294c9d0Joe Onorato    private IconCache mIconCache;
14900acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato    private DragController mDragController;
150aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung
1514516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka    // These are temporary variables to prevent having to allocate a new object just to
1524516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka    // return an (x, y) value from helper functions. Do NOT use them to maintain other state.
15331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    private int[] mTempCell = new int[2];
15470864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey    private int[] mTempEstimate = new int[2];
1550280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka    private float[] mTempOriginXY = new float[2];
156a63c452f5bd491ba9b28c332ccedc6c6c7e2f3ccMichael Jurka    private float[] mTempDragCoordinates = new float[2];
1574516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka    private float[] mTempTouchCoordinates = new float[2];
1584516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka    private float[] mTempCellLayoutCenterCoordinates = new float[2];
159a63c452f5bd491ba9b28c332ccedc6c6c7e2f3ccMichael Jurka    private float[] mTempDragBottomRightCoordinates = new float[2];
1600280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka    private Matrix mTempInverseMatrix = new Matrix();
16131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
162c2f7f4794867cd1b3e97fd0f379ad8ad15958a6cMichael Jurka    private SpringLoadedDragController mSpringLoadedDragController;
163d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka
164d22015cd37ea6ef53762eca5be57daca123ff607Adam Cohen    private static final int DEFAULT_CELL_COUNT_X = 4;
165d22015cd37ea6ef53762eca5be57daca123ff607Adam Cohen    private static final int DEFAULT_CELL_COUNT_Y = 4;
16631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
1678a73c51ee87b6d9b12daba188034889caf7a905bRomain Guy    private Drawable mPreviousIndicator;
1688a73c51ee87b6d9b12daba188034889caf7a905bRomain Guy    private Drawable mNextIndicator;
169aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung
1701262e369484ce7f2565655ed80e6299232c70bd7Patrick Dubroy    // State variable that indicates whether the pages are small (ie when you're
171dee0589388ba0f6373912e18bf86243282fb3b9bMichael Jurka    // in all apps or customize mode)
172c0e8fcae492730210b2b8b6d5bb3d65636bad245Michael Jurka    private boolean mIsSmall = false;
173c0e8fcae492730210b2b8b6d5bb3d65636bad245Michael Jurka    private boolean mIsInUnshrinkAnimation = false;
174bea15195346bab3c52b0156e92f2b71f0811b210Michael Jurka    private AnimatorListener mShrinkAnimationListener;
175b8e14479da7209ca811a753b3256fe4a0b49a873Michael Jurka    private AnimatorListener mUnshrinkAnimationListener;
176af91de06b99e2d5d41ce79fefa34ce2111e51917Michael Jurka    enum ShrinkState { TOP, SPRING_LOADED, MIDDLE, BOTTOM_HIDDEN, BOTTOM_VISIBLE };
177af91de06b99e2d5d41ce79fefa34ce2111e51917Michael Jurka    private ShrinkState mShrinkState;
178d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka    private boolean mWasSpringLoadedOnDragExit = false;
179883f55b1d261862b0de1b43af0b17d351761a9c6Michael Jurka    private boolean mWaitingToShrink = false;
180af91de06b99e2d5d41ce79fefa34ce2111e51917Michael Jurka    private ShrinkState mWaitingToShrinkState;
1813c4c20fbe682cb4b3ef94f09afe0af09171583f3Michael Jurka    private AnimatorSet mAnimator;
182dee0589388ba0f6373912e18bf86243282fb3b9bMichael Jurka
18354fa3b95557c283976e8c1aa8a157b460b0b4513Patrick Dubroy    /** Is the user is dragging an item near the edge of a page? */
1841262e369484ce7f2565655ed80e6299232c70bd7Patrick Dubroy    private boolean mInScrollArea = false;
1851262e369484ce7f2565655ed80e6299232c70bd7Patrick Dubroy
18654fa3b95557c283976e8c1aa8a157b460b0b4513Patrick Dubroy    /** If mInScrollArea is true, the direction of the scroll. */
18754fa3b95557c283976e8c1aa8a157b460b0b4513Patrick Dubroy    private int mPendingScrollDirection = DragController.SCROLL_NONE;
18854fa3b95557c283976e8c1aa8a157b460b0b4513Patrick Dubroy
1898e58e916061cbe2623697efac0924f2aa3753a92Patrick Dubroy    private final HolographicOutlineHelper mOutlineHelper = new HolographicOutlineHelper();
1904be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato    private Bitmap mDragOutline = null;
1918e58e916061cbe2623697efac0924f2aa3753a92Patrick Dubroy    private final Rect mTempRect = new Rect();
1928e58e916061cbe2623697efac0924f2aa3753a92Patrick Dubroy    private final int[] mTempXY = new int[2];
1934be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato
194cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy    private ValueAnimator mDropAnim = null;
195cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy    private TimeInterpolator mQuintEaseOutInterpolator = new DecelerateInterpolator(2.5f);
196cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy    private View mDropView = null;
197cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy    private int[] mDropViewPos = new int[] { -1, -1 };
198cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy
199a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung    // Paint used to draw external drop outline
200a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung    private final Paint mExternalDragOutlinePaint = new Paint();
201a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung
2026b879f0a5885274a85333531e091283405d490ccAdam Lesinski    // Camera and Matrix used to determine the final position of a neighboring CellLayout
2036b879f0a5885274a85333531e091283405d490ccAdam Lesinski    private final Matrix mMatrix = new Matrix();
2046b879f0a5885274a85333531e091283405d490ccAdam Lesinski    private final Camera mCamera = new Camera();
2056b879f0a5885274a85333531e091283405d490ccAdam Lesinski    private final float mTempFloat2[] = new float[2];
2066b879f0a5885274a85333531e091283405d490ccAdam Lesinski
207c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka    enum WallpaperVerticalOffset { TOP, MIDDLE, BOTTOM };
208c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka    int mWallpaperWidth;
209c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka    int mWallpaperHeight;
210ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka    WallpaperOffsetInterpolator mWallpaperOffset;
211c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka    boolean mUpdateWallpaperOffsetImmediately = false;
212ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka    boolean mSyncWallpaperOffsetWithScroll = true;
213c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka
2140bb8563b1381d92b0d7dbb5b0f814ad656c2f9bdMichael Jurka    // info about the last drag
2150bb8563b1381d92b0d7dbb5b0f814ad656c2f9bdMichael Jurka    private DragView mLastDragView;
2160bb8563b1381d92b0d7dbb5b0f814ad656c2f9bdMichael Jurka    private int mLastDragOriginX;
2170bb8563b1381d92b0d7dbb5b0f814ad656c2f9bdMichael Jurka    private int mLastDragOriginY;
2180bb8563b1381d92b0d7dbb5b0f814ad656c2f9bdMichael Jurka    private int mLastDragXOffset;
2190bb8563b1381d92b0d7dbb5b0f814ad656c2f9bdMichael Jurka    private int mLastDragYOffset;
2200bb8563b1381d92b0d7dbb5b0f814ad656c2f9bdMichael Jurka
221f8d2823d885ba682140aee1ae0504c1c5e67a24bAdam Cohen    // Variables relating to touch disambiguation (scrolling workspace vs. scrolling a widget)
222f8d2823d885ba682140aee1ae0504c1c5e67a24bAdam Cohen    private float mXDown;
223f8d2823d885ba682140aee1ae0504c1c5e67a24bAdam Cohen    private float mYDown;
224f8d2823d885ba682140aee1ae0504c1c5e67a24bAdam Cohen    final static float START_DAMPING_TOUCH_SLOP_ANGLE = (float) Math.PI / 6;
225f8d2823d885ba682140aee1ae0504c1c5e67a24bAdam Cohen    final static float MAX_SWIPE_ANGLE = (float) Math.PI / 3;
226f8d2823d885ba682140aee1ae0504c1c5e67a24bAdam Cohen    final static float TOUCH_SLOP_DAMPING_FACTOR = 4;
227f8d2823d885ba682140aee1ae0504c1c5e67a24bAdam Cohen
22831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    /**
22931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * Used to inflate the Workspace from XML.
23031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     *
23131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * @param context The application's context.
2320142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka     * @param attrs The attributes set containing the Workspace's customization values.
23331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     */
23431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    public Workspace(Context context, AttributeSet attrs) {
23531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        this(context, attrs, 0);
23631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
23731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
23831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    /**
23931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * Used to inflate the Workspace from XML.
24031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     *
24131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * @param context The application's context.
2420142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka     * @param attrs The attributes set containing the Workspace's customization values.
24331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * @param defStyle Unused.
24431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     */
24531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    public Workspace(Context context, AttributeSet attrs, int defStyle) {
24631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        super(context, attrs, defStyle);
2470142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka        mContentIsRefreshable = false;
2485f1c509d5ad1954a7e38e77db4d5f27c7345fd39Michael Jurka
2495f1c509d5ad1954a7e38e77db4d5f27c7345fd39Michael Jurka        if (!LauncherApplication.isScreenXLarge()) {
2505f1c509d5ad1954a7e38e77db4d5f27c7345fd39Michael Jurka            mFadeInAdjacentScreens = false;
2515f1c509d5ad1954a7e38e77db4d5f27c7345fd39Michael Jurka        }
25231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
2538f573952b8729b4319043ae0908997ecd2d68951Dianne Hackborn        mWallpaperManager = WallpaperManager.getInstance(context);
254aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung
255aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung        TypedArray a = context.obtainStyledAttributes(attrs,
256aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung                R.styleable.Workspace, defStyle, 0);
257d22015cd37ea6ef53762eca5be57daca123ff607Adam Cohen        int cellCountX = a.getInt(R.styleable.Workspace_cellCountX, DEFAULT_CELL_COUNT_X);
258d22015cd37ea6ef53762eca5be57daca123ff607Adam Cohen        int cellCountY = a.getInt(R.styleable.Workspace_cellCountY, DEFAULT_CELL_COUNT_Y);
2590142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka        mDefaultPage = a.getInt(R.styleable.Workspace_defaultScreen, 1);
26031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        a.recycle();
26131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
262d22015cd37ea6ef53762eca5be57daca123ff607Adam Cohen        LauncherModel.updateWorkspaceLayoutCells(cellCountX, cellCountY);
2630d44e9482b95d8f163b28bf20131c4349185b589Joe Onorato        setHapticFeedbackEnabled(false);
2640142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka
26531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        initWorkspace();
266c35afb2c9df8cc56c77bf21ce2eaa213f6f31251Winson Chung
267c35afb2c9df8cc56c77bf21ce2eaa213f6f31251Winson Chung        // Disable multitouch across the workspace/all apps/customize tray
268c35afb2c9df8cc56c77bf21ce2eaa213f6f31251Winson Chung        setMotionEventSplittingEnabled(true);
26931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
27031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
27131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    /**
27231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * Initializes various states for this workspace.
27331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     */
2740142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka    protected void initWorkspace() {
2750589f0f66ce498512c6ee47482c649d88294c9d0Joe Onorato        Context context = getContext();
2760142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka        mCurrentPage = mDefaultPage;
2770142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka        Launcher.setScreen(mCurrentPage);
2780589f0f66ce498512c6ee47482c649d88294c9d0Joe Onorato        LauncherApplication app = (LauncherApplication)context.getApplicationContext();
2790589f0f66ce498512c6ee47482c649d88294c9d0Joe Onorato        mIconCache = app.getIconCache();
280a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung        mExternalDragOutlinePaint.setAntiAlias(true);
281cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy        setWillNotDraw(false);
28231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
283b4b7fa7c0383b6af58d73d3e024b91d586148cf8Winson Chung        try {
284b4b7fa7c0383b6af58d73d3e024b91d586148cf8Winson Chung            final Resources res = getResources();
285b4b7fa7c0383b6af58d73d3e024b91d586148cf8Winson Chung            mBackground = res.getDrawable(R.drawable.all_apps_bg_gradient);
2868d006d5e144ae33e509ea42e0b9760ef6c5bc884Winson Chung            mCustomizeTrayBackground = res.getDrawable(R.drawable.customize_bg_gradient);
287b4b7fa7c0383b6af58d73d3e024b91d586148cf8Winson Chung        } catch (Resources.NotFoundException e) {
288b4b7fa7c0383b6af58d73d3e024b91d586148cf8Winson Chung            // In this case, we will skip drawing background protection
289b4b7fa7c0383b6af58d73d3e024b91d586148cf8Winson Chung        }
2909171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung
2918edd75c8bb0729a10cb39f614183e3e9ae4288e8Michael Jurka        mUnshrinkAnimationListener = new AnimatorListenerAdapter() {
2923c4c20fbe682cb4b3ef94f09afe0af09171583f3Michael Jurka            @Override
293c0e8fcae492730210b2b8b6d5bb3d65636bad245Michael Jurka            public void onAnimationStart(Animator animation) {
294c0e8fcae492730210b2b8b6d5bb3d65636bad245Michael Jurka                mIsInUnshrinkAnimation = true;
295c0e8fcae492730210b2b8b6d5bb3d65636bad245Michael Jurka            }
2960bb8563b1381d92b0d7dbb5b0f814ad656c2f9bdMichael Jurka
2973c4c20fbe682cb4b3ef94f09afe0af09171583f3Michael Jurka            @Override
2988edd75c8bb0729a10cb39f614183e3e9ae4288e8Michael Jurka            public void onAnimationEnd(Animator animation) {
299c0e8fcae492730210b2b8b6d5bb3d65636bad245Michael Jurka                mIsInUnshrinkAnimation = false;
300ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka                mSyncWallpaperOffsetWithScroll = true;
3010bb8563b1381d92b0d7dbb5b0f814ad656c2f9bdMichael Jurka                if (mShrinkState == ShrinkState.SPRING_LOADED) {
3020bb8563b1381d92b0d7dbb5b0f814ad656c2f9bdMichael Jurka                    View layout = null;
3030bb8563b1381d92b0d7dbb5b0f814ad656c2f9bdMichael Jurka                    if (mLastDragView != null) {
3040bb8563b1381d92b0d7dbb5b0f814ad656c2f9bdMichael Jurka                        layout = findMatchingPageForDragOver(mLastDragView, mLastDragOriginX,
3050bb8563b1381d92b0d7dbb5b0f814ad656c2f9bdMichael Jurka                                mLastDragOriginY, mLastDragXOffset, mLastDragYOffset);
3060bb8563b1381d92b0d7dbb5b0f814ad656c2f9bdMichael Jurka                    }
3070bb8563b1381d92b0d7dbb5b0f814ad656c2f9bdMichael Jurka                    mSpringLoadedDragController.onEnterSpringLoadedMode(layout == null);
3080bb8563b1381d92b0d7dbb5b0f814ad656c2f9bdMichael Jurka                } else {
309a58f8bb1947af39d4d18d849b3e4d6bd0d3954d7Winson Chung                    mDrawCustomizeTrayBackground = false;
310a58f8bb1947af39d4d18d849b3e4d6bd0d3954d7Winson Chung                }
311ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka                mWallpaperOffset.setOverrideHorizontalCatchupConstant(false);
31260b7c53ccc6384b65aaca77d97794e8f09e8cfc8Patrick Dubroy                mAnimator = null;
313ce7e05fbe8abd5f25ec47e0e05b5cc76ceb39d2eMichael Jurka                enableChildrenLayers(false);
314bea15195346bab3c52b0156e92f2b71f0811b210Michael Jurka            }
315bea15195346bab3c52b0156e92f2b71f0811b210Michael Jurka        };
316bea15195346bab3c52b0156e92f2b71f0811b210Michael Jurka        mShrinkAnimationListener = new AnimatorListenerAdapter() {
317bea15195346bab3c52b0156e92f2b71f0811b210Michael Jurka            @Override
318ce7e05fbe8abd5f25ec47e0e05b5cc76ceb39d2eMichael Jurka            public void onAnimationStart(Animator animation) {
319ce7e05fbe8abd5f25ec47e0e05b5cc76ceb39d2eMichael Jurka                enableChildrenLayers(true);
320ce7e05fbe8abd5f25ec47e0e05b5cc76ceb39d2eMichael Jurka            }
321ce7e05fbe8abd5f25ec47e0e05b5cc76ceb39d2eMichael Jurka            @Override
322bea15195346bab3c52b0156e92f2b71f0811b210Michael Jurka            public void onAnimationEnd(Animator animation) {
323ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka                mWallpaperOffset.setOverrideHorizontalCatchupConstant(false);
32460b7c53ccc6384b65aaca77d97794e8f09e8cfc8Patrick Dubroy                mAnimator = null;
325dee0589388ba0f6373912e18bf86243282fb3b9bMichael Jurka            }
326dee0589388ba0f6373912e18bf86243282fb3b9bMichael Jurka        };
3270142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka        mSnapVelocity = 600;
328ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        mWallpaperOffset = new WallpaperOffsetInterpolator();
32931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
33031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
33131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    @Override
332f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen    protected int getScrollMode() {
333f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen        if (LauncherApplication.isScreenXLarge()) {
334e0f66b546994a9bdee452851c17a148db02ec300Adam Cohen            return SmoothPagedView.X_LARGE_MODE;
335f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen        } else {
336e0f66b546994a9bdee452851c17a148db02ec300Adam Cohen            return SmoothPagedView.DEFAULT_MODE;
337f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen        }
338f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen    }
339f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen
340f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen    @Override
34131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    public void addView(View child, int index, LayoutParams params) {
34231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        if (!(child instanceof CellLayout)) {
34331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            throw new IllegalArgumentException("A Workspace can only have CellLayout children.");
34431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
34521f12b52a54d2658ed14fcf7bb1ca17a198f62beAdam Cohen        ((CellLayout) child).setOnInterceptTouchListener(this);
34631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        super.addView(child, index, params);
34731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
34831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
34931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    @Override
35031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    public void addView(View child) {
35131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        if (!(child instanceof CellLayout)) {
35231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            throw new IllegalArgumentException("A Workspace can only have CellLayout children.");
35331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
35421f12b52a54d2658ed14fcf7bb1ca17a198f62beAdam Cohen        ((CellLayout) child).setOnInterceptTouchListener(this);
35531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        super.addView(child);
35631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
35731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
35831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    @Override
35931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    public void addView(View child, int index) {
36031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        if (!(child instanceof CellLayout)) {
36131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            throw new IllegalArgumentException("A Workspace can only have CellLayout children.");
36231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
36321f12b52a54d2658ed14fcf7bb1ca17a198f62beAdam Cohen        ((CellLayout) child).setOnInterceptTouchListener(this);
36431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        super.addView(child, index);
36531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
36631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
36731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    @Override
36831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    public void addView(View child, int width, int height) {
36931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        if (!(child instanceof CellLayout)) {
37031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            throw new IllegalArgumentException("A Workspace can only have CellLayout children.");
37131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
37221f12b52a54d2658ed14fcf7bb1ca17a198f62beAdam Cohen        ((CellLayout) child).setOnInterceptTouchListener(this);
37331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        super.addView(child, width, height);
37431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
37531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
37631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    @Override
37731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    public void addView(View child, LayoutParams params) {
37831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        if (!(child instanceof CellLayout)) {
37931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            throw new IllegalArgumentException("A Workspace can only have CellLayout children.");
38031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
38121f12b52a54d2658ed14fcf7bb1ca17a198f62beAdam Cohen        ((CellLayout) child).setOnInterceptTouchListener(this);
38231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        super.addView(child, params);
38331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
38431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
38531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    /**
38631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * @return The open folder on the current screen, or null if there is none
38731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     */
38831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    Folder getOpenFolder() {
3896e3140865d3f0def2e55934d8b0b2c1503386e54Winson Chung        ViewGroup currentPage = ((CellLayout) getChildAt(mCurrentPage)).getChildrenLayout();
3900142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka        int count = currentPage.getChildCount();
39131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        for (int i = 0; i < count; i++) {
3920142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka            View child = currentPage.getChildAt(i);
393aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung            if (child instanceof Folder) {
394aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung                Folder folder = (Folder) child;
395aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung                if (folder.getInfo().opened)
396aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung                    return folder;
39731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            }
39831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
39931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        return null;
40031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
40131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
40231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    ArrayList<Folder> getOpenFolders() {
403dee0589388ba0f6373912e18bf86243282fb3b9bMichael Jurka        final int screenCount = getChildCount();
404dee0589388ba0f6373912e18bf86243282fb3b9bMichael Jurka        ArrayList<Folder> folders = new ArrayList<Folder>(screenCount);
40531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
406dee0589388ba0f6373912e18bf86243282fb3b9bMichael Jurka        for (int screen = 0; screen < screenCount; screen++) {
4076e3140865d3f0def2e55934d8b0b2c1503386e54Winson Chung            ViewGroup currentPage = ((CellLayout) getChildAt(screen)).getChildrenLayout();
4080142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka            int count = currentPage.getChildCount();
40931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            for (int i = 0; i < count; i++) {
4100142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka                View child = currentPage.getChildAt(i);
411aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung                if (child instanceof Folder) {
412aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung                    Folder folder = (Folder) child;
413aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung                    if (folder.getInfo().opened)
414aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung                        folders.add(folder);
41531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                    break;
41631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                }
41731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            }
41831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
41931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        return folders;
42031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
42131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
422a0aa0121b91fde17e427ab2763ce312e64cf5d33Patrick Dubroy    boolean isTouchActive() {
423a0aa0121b91fde17e427ab2763ce312e64cf5d33Patrick Dubroy        return mTouchState != TOUCH_STATE_REST;
42431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
42531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
42631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    /**
42731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * Adds the specified child in the specified screen. The position and dimension of
42831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * the child are defined by x, y, spanX and spanY.
42931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     *
43031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * @param child The child to add in one of the workspace's screens.
43131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * @param screen The screen in which to add the child.
43231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * @param x The X position of the child in the screen's grid.
43331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * @param y The Y position of the child in the screen's grid.
43431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * @param spanX The number of cells spanned horizontally by the child.
43531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * @param spanY The number of cells spanned vertically by the child.
43631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     */
43731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    void addInScreen(View child, int screen, int x, int y, int spanX, int spanY) {
43831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        addInScreen(child, screen, x, y, spanX, spanY, false);
43931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
44031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
441aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung    void addInFullScreen(View child, int screen) {
442aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung        addInScreen(child, screen, 0, 0, -1, -1);
443aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung    }
444aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung
44531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    /**
44631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * Adds the specified child in the specified screen. The position and dimension of
44731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * the child are defined by x, y, spanX and spanY.
44831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     *
44931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * @param child The child to add in one of the workspace's screens.
45031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * @param screen The screen in which to add the child.
45131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * @param x The X position of the child in the screen's grid.
45231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * @param y The Y position of the child in the screen's grid.
45331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * @param spanX The number of cells spanned horizontally by the child.
45431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * @param spanY The number of cells spanned vertically by the child.
45531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     * @param insert When true, the child is inserted at the beginning of the children list.
45631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project     */
45731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    void addInScreen(View child, int screen, int x, int y, int spanX, int spanY, boolean insert) {
45831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        if (screen < 0 || screen >= getChildCount()) {
459291ad12232c98e383d44d76ffe09e97e204c61bcDaniel Sandler            Log.e(TAG, "The screen must be >= 0 and < " + getChildCount()
460291ad12232c98e383d44d76ffe09e97e204c61bcDaniel Sandler                + " (was " + screen + "); skipping child");
461291ad12232c98e383d44d76ffe09e97e204c61bcDaniel Sandler            return;
46231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
46331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
46431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        final CellLayout group = (CellLayout) getChildAt(screen);
46531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        CellLayout.LayoutParams lp = (CellLayout.LayoutParams) child.getLayoutParams();
46631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        if (lp == null) {
46731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            lp = new CellLayout.LayoutParams(x, y, spanX, spanY);
46831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        } else {
46931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            lp.cellX = x;
47031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            lp.cellY = y;
47131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            lp.cellHSpan = spanX;
47231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            lp.cellVSpan = spanY;
47331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
474aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung
4756569f2c80e179c2f8ed73dae6b01d971ec20f005Patrick Dubroy        // Get the canonical child id to uniquely represent this view in this screen
476845ba3b17b83a2b11d79c6fb076cf96ab4a737dfMichael Jurka        int childId = LauncherModel.getCellLayoutChildId(-1, screen, x, y, spanX, spanY);
477f3ca3ab6958b104cbf2c2fa04add97d372a94d1cMichael Jurka        boolean markCellsAsOccupied = !(child instanceof Folder);
478f3ca3ab6958b104cbf2c2fa04add97d372a94d1cMichael Jurka        if (!group.addViewToCellLayout(child, insert ? 0 : -1, childId, lp, markCellsAsOccupied)) {
479aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung            // TODO: This branch occurs when the workspace is adding views
480aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung            // outside of the defined grid
4816569f2c80e179c2f8ed73dae6b01d971ec20f005Patrick Dubroy            // maybe we should be deleting these items from the LauncherModel?
482aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung            Log.w(TAG, "Failed to add to item at (" + lp.cellX + "," + lp.cellY + ") to CellLayout");
483aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung        }
484aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung
48531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        if (!(child instanceof Folder)) {
4860d44e9482b95d8f163b28bf20131c4349185b589Joe Onorato            child.setHapticFeedbackEnabled(false);
48731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            child.setOnLongClickListener(mLongClickListener);
48831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
48900acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato        if (child instanceof DropTarget) {
490aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung            mDragController.addDropTarget((DropTarget) child);
49100acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato        }
49231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
49331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
494d0ce1ec2e21ce3bb0ba3549a01d1d06b440a8e45Patrick Dubroy    /**
495d0ce1ec2e21ce3bb0ba3549a01d1d06b440a8e45Patrick Dubroy     * Check if the point (x, y) hits a given page.
496d0ce1ec2e21ce3bb0ba3549a01d1d06b440a8e45Patrick Dubroy     */
497d0ce1ec2e21ce3bb0ba3549a01d1d06b440a8e45Patrick Dubroy    private boolean hitsPage(int index, float x, float y) {
498d0ce1ec2e21ce3bb0ba3549a01d1d06b440a8e45Patrick Dubroy        final View page = getChildAt(index);
499d0ce1ec2e21ce3bb0ba3549a01d1d06b440a8e45Patrick Dubroy        if (page != null) {
500d0ce1ec2e21ce3bb0ba3549a01d1d06b440a8e45Patrick Dubroy            float[] localXY = { x, y };
501d0ce1ec2e21ce3bb0ba3549a01d1d06b440a8e45Patrick Dubroy            mapPointFromSelfToChild(page, localXY);
502d0ce1ec2e21ce3bb0ba3549a01d1d06b440a8e45Patrick Dubroy            return (localXY[0] >= 0 && localXY[0] < page.getWidth()
503d0ce1ec2e21ce3bb0ba3549a01d1d06b440a8e45Patrick Dubroy                    && localXY[1] >= 0 && localXY[1] < page.getHeight());
504d0ce1ec2e21ce3bb0ba3549a01d1d06b440a8e45Patrick Dubroy        }
505d0ce1ec2e21ce3bb0ba3549a01d1d06b440a8e45Patrick Dubroy        return false;
506d0ce1ec2e21ce3bb0ba3549a01d1d06b440a8e45Patrick Dubroy    }
507d0ce1ec2e21ce3bb0ba3549a01d1d06b440a8e45Patrick Dubroy
508d0ce1ec2e21ce3bb0ba3549a01d1d06b440a8e45Patrick Dubroy    @Override
509d0ce1ec2e21ce3bb0ba3549a01d1d06b440a8e45Patrick Dubroy    protected boolean hitsPreviousPage(float x, float y) {
510d0ce1ec2e21ce3bb0ba3549a01d1d06b440a8e45Patrick Dubroy        // mNextPage is set to INVALID_PAGE whenever we are stationary.
511d0ce1ec2e21ce3bb0ba3549a01d1d06b440a8e45Patrick Dubroy        // Calculating "next page" this way ensures that you scroll to whatever page you tap on
512d0ce1ec2e21ce3bb0ba3549a01d1d06b440a8e45Patrick Dubroy        final int current = (mNextPage == INVALID_PAGE) ? mCurrentPage : mNextPage;
513d0ce1ec2e21ce3bb0ba3549a01d1d06b440a8e45Patrick Dubroy        return hitsPage(current - 1, x, y);
514d0ce1ec2e21ce3bb0ba3549a01d1d06b440a8e45Patrick Dubroy    }
515d0ce1ec2e21ce3bb0ba3549a01d1d06b440a8e45Patrick Dubroy
516d0ce1ec2e21ce3bb0ba3549a01d1d06b440a8e45Patrick Dubroy    @Override
517d0ce1ec2e21ce3bb0ba3549a01d1d06b440a8e45Patrick Dubroy    protected boolean hitsNextPage(float x, float y) {
518d0ce1ec2e21ce3bb0ba3549a01d1d06b440a8e45Patrick Dubroy        // mNextPage is set to INVALID_PAGE whenever we are stationary.
519d0ce1ec2e21ce3bb0ba3549a01d1d06b440a8e45Patrick Dubroy        // Calculating "next page" this way ensures that you scroll to whatever page you tap on
520d0ce1ec2e21ce3bb0ba3549a01d1d06b440a8e45Patrick Dubroy        final int current = (mNextPage == INVALID_PAGE) ? mCurrentPage : mNextPage;
521d0ce1ec2e21ce3bb0ba3549a01d1d06b440a8e45Patrick Dubroy        return hitsPage(current + 1, x, y);
522d0ce1ec2e21ce3bb0ba3549a01d1d06b440a8e45Patrick Dubroy    }
523d0ce1ec2e21ce3bb0ba3549a01d1d06b440a8e45Patrick Dubroy
524dee0589388ba0f6373912e18bf86243282fb3b9bMichael Jurka    public boolean onTouch(View v, MotionEvent event) {
525dee0589388ba0f6373912e18bf86243282fb3b9bMichael Jurka        // this is an intercepted event being forwarded from a cell layout
526c0e8fcae492730210b2b8b6d5bb3d65636bad245Michael Jurka        if (mIsSmall || mIsInUnshrinkAnimation) {
5276b879f0a5885274a85333531e091283405d490ccAdam Lesinski            // Only allow clicks on a CellLayout if it is visible
528af91de06b99e2d5d41ce79fefa34ce2111e51917Michael Jurka            if (mShrinkState != ShrinkState.BOTTOM_HIDDEN) {
5296b879f0a5885274a85333531e091283405d490ccAdam Lesinski                mLauncher.onWorkspaceClick((CellLayout) v);
5306b879f0a5885274a85333531e091283405d490ccAdam Lesinski            }
53196226223d9849842bb2a67af051acbae9e0677d5Michael Jurka            return true;
532dee0589388ba0f6373912e18bf86243282fb3b9bMichael Jurka        }
533dee0589388ba0f6373912e18bf86243282fb3b9bMichael Jurka        return false;
5340e26059548e429e5d1c973bebe4c561bead2926fMichael Jurka    }
5350e26059548e429e5d1c973bebe4c561bead2926fMichael Jurka
536ded9f8d8658d0b6601006c0a954cd3bf530e55c1Adam Cohen    protected void onWindowVisibilityChanged (int visibility) {
537ded9f8d8658d0b6601006c0a954cd3bf530e55c1Adam Cohen        mLauncher.onWindowVisibilityChanged(visibility);
538ded9f8d8658d0b6601006c0a954cd3bf530e55c1Adam Cohen    }
539ded9f8d8658d0b6601006c0a954cd3bf530e55c1Adam Cohen
5405f1c509d5ad1954a7e38e77db4d5f27c7345fd39Michael Jurka    @Override
5415f1c509d5ad1954a7e38e77db4d5f27c7345fd39Michael Jurka    public boolean dispatchUnhandledMove(View focused, int direction) {
542c0e8fcae492730210b2b8b6d5bb3d65636bad245Michael Jurka        if (mIsSmall || mIsInUnshrinkAnimation) {
5435f1c509d5ad1954a7e38e77db4d5f27c7345fd39Michael Jurka            // when the home screens are shrunken, shouldn't allow side-scrolling
5445f1c509d5ad1954a7e38e77db4d5f27c7345fd39Michael Jurka            return false;
5455f1c509d5ad1954a7e38e77db4d5f27c7345fd39Michael Jurka        }
5465f1c509d5ad1954a7e38e77db4d5f27c7345fd39Michael Jurka        return super.dispatchUnhandledMove(focused, direction);
5475f1c509d5ad1954a7e38e77db4d5f27c7345fd39Michael Jurka    }
5485f1c509d5ad1954a7e38e77db4d5f27c7345fd39Michael Jurka
5495f1c509d5ad1954a7e38e77db4d5f27c7345fd39Michael Jurka    @Override
5505f1c509d5ad1954a7e38e77db4d5f27c7345fd39Michael Jurka    public boolean onInterceptTouchEvent(MotionEvent ev) {
551f8d2823d885ba682140aee1ae0504c1c5e67a24bAdam Cohen        if (ev.getAction() == MotionEvent.ACTION_DOWN) {
552f8d2823d885ba682140aee1ae0504c1c5e67a24bAdam Cohen            mXDown = ev.getX();
553f8d2823d885ba682140aee1ae0504c1c5e67a24bAdam Cohen            mYDown = ev.getY();
554f8d2823d885ba682140aee1ae0504c1c5e67a24bAdam Cohen        }
555f8d2823d885ba682140aee1ae0504c1c5e67a24bAdam Cohen
556c0e8fcae492730210b2b8b6d5bb3d65636bad245Michael Jurka        if (mIsSmall || mIsInUnshrinkAnimation) {
5576b879f0a5885274a85333531e091283405d490ccAdam Lesinski            if (mLauncher.isAllAppsVisible() &&
558af91de06b99e2d5d41ce79fefa34ce2111e51917Michael Jurka                    mShrinkState == ShrinkState.BOTTOM_HIDDEN) {
5596b879f0a5885274a85333531e091283405d490ccAdam Lesinski                // Intercept this event so we can show the workspace in full view
5606b879f0a5885274a85333531e091283405d490ccAdam Lesinski                // when it is clicked on and it is small
561be9093426aec3a6d412811a12d2400e645613242Adam Cohen                AllAppsPagedView allApps = (AllAppsPagedView)
562be9093426aec3a6d412811a12d2400e645613242Adam Cohen                        mLauncher.findViewById(R.id.all_apps_paged_view);
563be9093426aec3a6d412811a12d2400e645613242Adam Cohen                if (allApps != null) {
564be9093426aec3a6d412811a12d2400e645613242Adam Cohen                    allApps.onInterceptTouchEvent(ev);
565be9093426aec3a6d412811a12d2400e645613242Adam Cohen                }
5666b879f0a5885274a85333531e091283405d490ccAdam Lesinski                return true;
5676b879f0a5885274a85333531e091283405d490ccAdam Lesinski            }
5685f1c509d5ad1954a7e38e77db4d5f27c7345fd39Michael Jurka            return false;
5695f1c509d5ad1954a7e38e77db4d5f27c7345fd39Michael Jurka        }
5705f1c509d5ad1954a7e38e77db4d5f27c7345fd39Michael Jurka        return super.onInterceptTouchEvent(ev);
5715f1c509d5ad1954a7e38e77db4d5f27c7345fd39Michael Jurka    }
5725f1c509d5ad1954a7e38e77db4d5f27c7345fd39Michael Jurka
5731adf5391a3a3d215b226adf3702019c22a99e3b1Michael Jurka    @Override
5741adf5391a3a3d215b226adf3702019c22a99e3b1Michael Jurka    protected void determineScrollingStart(MotionEvent ev) {
57569c42da4d30f1cbba5fe1ac8960b4e305e14b807Adam Cohen        if (!mIsSmall && !mIsInUnshrinkAnimation) {
57669c42da4d30f1cbba5fe1ac8960b4e305e14b807Adam Cohen            float deltaX = Math.abs(ev.getX() - mXDown);
57769c42da4d30f1cbba5fe1ac8960b4e305e14b807Adam Cohen            float deltaY = Math.abs(ev.getY() - mYDown);
578f8d2823d885ba682140aee1ae0504c1c5e67a24bAdam Cohen
57969c42da4d30f1cbba5fe1ac8960b4e305e14b807Adam Cohen            if (Float.compare(deltaX, 0f) == 0) return;
580f8d2823d885ba682140aee1ae0504c1c5e67a24bAdam Cohen
58169c42da4d30f1cbba5fe1ac8960b4e305e14b807Adam Cohen            float slope = deltaY / deltaX;
58269c42da4d30f1cbba5fe1ac8960b4e305e14b807Adam Cohen            float theta = (float) Math.atan(slope);
583f8d2823d885ba682140aee1ae0504c1c5e67a24bAdam Cohen
58469c42da4d30f1cbba5fe1ac8960b4e305e14b807Adam Cohen            if (deltaX > mTouchSlop || deltaY > mTouchSlop) {
58569c42da4d30f1cbba5fe1ac8960b4e305e14b807Adam Cohen                cancelCurrentPageLongPress();
58669c42da4d30f1cbba5fe1ac8960b4e305e14b807Adam Cohen            }
587f8d2823d885ba682140aee1ae0504c1c5e67a24bAdam Cohen
58869c42da4d30f1cbba5fe1ac8960b4e305e14b807Adam Cohen            if (theta > MAX_SWIPE_ANGLE) {
58969c42da4d30f1cbba5fe1ac8960b4e305e14b807Adam Cohen                // Above MAX_SWIPE_ANGLE, we don't want to ever start scrolling the workspace
59069c42da4d30f1cbba5fe1ac8960b4e305e14b807Adam Cohen                return;
59169c42da4d30f1cbba5fe1ac8960b4e305e14b807Adam Cohen            } else if (theta > START_DAMPING_TOUCH_SLOP_ANGLE) {
59269c42da4d30f1cbba5fe1ac8960b4e305e14b807Adam Cohen                // Above START_DAMPING_TOUCH_SLOP_ANGLE and below MAX_SWIPE_ANGLE, we want to
59369c42da4d30f1cbba5fe1ac8960b4e305e14b807Adam Cohen                // increase the touch slop to make it harder to begin scrolling the workspace. This
59469c42da4d30f1cbba5fe1ac8960b4e305e14b807Adam Cohen                // results in vertically scrolling widgets to more easily. The higher the angle, the
59569c42da4d30f1cbba5fe1ac8960b4e305e14b807Adam Cohen                // more we increase touch slop.
59669c42da4d30f1cbba5fe1ac8960b4e305e14b807Adam Cohen                theta -= START_DAMPING_TOUCH_SLOP_ANGLE;
59769c42da4d30f1cbba5fe1ac8960b4e305e14b807Adam Cohen                float extraRatio = (float)
59869c42da4d30f1cbba5fe1ac8960b4e305e14b807Adam Cohen                        Math.sqrt((theta / (MAX_SWIPE_ANGLE - START_DAMPING_TOUCH_SLOP_ANGLE)));
59969c42da4d30f1cbba5fe1ac8960b4e305e14b807Adam Cohen                super.determineScrollingStart(ev, 1 + TOUCH_SLOP_DAMPING_FACTOR * extraRatio);
60069c42da4d30f1cbba5fe1ac8960b4e305e14b807Adam Cohen            } else {
60169c42da4d30f1cbba5fe1ac8960b4e305e14b807Adam Cohen                // Below START_DAMPING_TOUCH_SLOP_ANGLE, we don't do anything special
60269c42da4d30f1cbba5fe1ac8960b4e305e14b807Adam Cohen                super.determineScrollingStart(ev);
60369c42da4d30f1cbba5fe1ac8960b4e305e14b807Adam Cohen            }
604f8d2823d885ba682140aee1ae0504c1c5e67a24bAdam Cohen        }
6051adf5391a3a3d215b226adf3702019c22a99e3b1Michael Jurka    }
6061adf5391a3a3d215b226adf3702019c22a99e3b1Michael Jurka
6071262e369484ce7f2565655ed80e6299232c70bd7Patrick Dubroy    protected void onPageBeginMoving() {
6080142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka        if (mNextPage != INVALID_PAGE) {
6090142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka            // we're snapping to a particular screen
61016fed41e5e680c547b23e108788eb85f1b04d36dMichael Jurka            enableChildrenCache(mCurrentPage, mNextPage);
6110142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka        } else {
6120142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka            // this is when user is actively dragging a particular screen, they might
6130142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka            // swipe it either left or right (but we won't advance by more than one screen)
61416fed41e5e680c547b23e108788eb85f1b04d36dMichael Jurka            enableChildrenCache(mCurrentPage - 1, mCurrentPage + 1);
61531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
616f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen        showOutlines();
61731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
61831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
6191262e369484ce7f2565655ed80e6299232c70bd7Patrick Dubroy    protected void onPageEndMoving() {
62016fed41e5e680c547b23e108788eb85f1b04d36dMichael Jurka        clearChildrenCache();
6211262e369484ce7f2565655ed80e6299232c70bd7Patrick Dubroy        // Hide the outlines, as long as we're not dragging
6221262e369484ce7f2565655ed80e6299232c70bd7Patrick Dubroy        if (!mDragController.dragging()) {
6231262e369484ce7f2565655ed80e6299232c70bd7Patrick Dubroy            hideOutlines();
6241262e369484ce7f2565655ed80e6299232c70bd7Patrick Dubroy        }
62568d739365bf650fe7fecf99cd3bfe63a0d41bd12Adam Cohen        mOverScrollMaxBackgroundAlpha = 0.0f;
626e0f66b546994a9bdee452851c17a148db02ec300Adam Cohen        mOverScrollPageIndex = -1;
6270142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka    }
6280142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka
6290142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka    @Override
6300142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka    protected void notifyPageSwitchListener() {
6310142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka        super.notifyPageSwitchListener();
6320142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka
6330142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka        if (mPreviousIndicator != null) {
6340142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka            // if we know the next page, we show the indication for it right away; it looks
6350142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka            // weird if the indicators are lagging
6360142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka            int page = mNextPage;
6370142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka            if (page == INVALID_PAGE) {
6380142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka                page = mCurrentPage;
6390142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka            }
6400142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka            mPreviousIndicator.setLevel(page);
6410142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka            mNextIndicator.setLevel(page);
6420142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka        }
6430142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka        Launcher.setScreen(mCurrentPage);
6440142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka    };
6450142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka
646c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka    // As a ratio of screen height, the total distance we want the parallax effect to span
647c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka    // vertically
648c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka    private float wallpaperTravelToScreenHeightRatio(int width, int height) {
649c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka        return 1.1f;
650c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka    }
651c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka
652c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka    // As a ratio of screen height, the total distance we want the parallax effect to span
653c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka    // horizontally
654c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka    private float wallpaperTravelToScreenWidthRatio(int width, int height) {
655c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka        float aspectRatio = width / (float) height;
656c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka
657c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka        // At an aspect ratio of 16/10, the wallpaper parallax effect should span 1.5 * screen width
658c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka        // At an aspect ratio of 10/16, the wallpaper parallax effect should span 1.2 * screen width
659c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka        // We will use these two data points to extrapolate how much the wallpaper parallax effect
660c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka        // to span (ie travel) at any aspect ratio:
661c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka
662c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka        final float ASPECT_RATIO_LANDSCAPE = 16/10f;
663c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka        final float ASPECT_RATIO_PORTRAIT = 10/16f;
664c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka        final float WALLPAPER_WIDTH_TO_SCREEN_RATIO_LANDSCAPE = 1.5f;
665c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka        final float WALLPAPER_WIDTH_TO_SCREEN_RATIO_PORTRAIT = 1.2f;
666c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka
667c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka        // To find out the desired width at different aspect ratios, we use the following two
668c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka        // formulas, where the coefficient on x is the aspect ratio (width/height):
669c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka        //   (16/10)x + y = 1.5
670c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka        //   (10/16)x + y = 1.2
671c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka        // We solve for x and y and end up with a final formula:
672c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka        final float x =
673c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka            (WALLPAPER_WIDTH_TO_SCREEN_RATIO_LANDSCAPE - WALLPAPER_WIDTH_TO_SCREEN_RATIO_PORTRAIT) /
674c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka            (ASPECT_RATIO_LANDSCAPE - ASPECT_RATIO_PORTRAIT);
675c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka        final float y = WALLPAPER_WIDTH_TO_SCREEN_RATIO_PORTRAIT - x * ASPECT_RATIO_PORTRAIT;
676c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka        return x * aspectRatio + y;
677c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka    }
678c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka
679c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka    // The range of scroll values for Workspace
680c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka    private int getScrollRange() {
681c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka        return getChildOffset(getChildCount() - 1) - getChildOffset(0);
682c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka    }
683c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka
684c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka    protected void setWallpaperDimension() {
685c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka        Display display = mLauncher.getWindowManager().getDefaultDisplay();
686c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka        final int maxDim = Math.max(display.getWidth(), display.getHeight());
687c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka        final int minDim = Math.min(display.getWidth(), display.getHeight());
688c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka
689c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka        // We need to ensure that there is enough extra space in the wallpaper for the intended
690c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka        // parallax effects
691c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka        mWallpaperWidth = (int) (maxDim * wallpaperTravelToScreenWidthRatio(maxDim, minDim));
692c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka        mWallpaperHeight = (int)(maxDim * wallpaperTravelToScreenHeightRatio(maxDim, minDim));
6934ad24ba3c726bb9021d887c4c2300d345151ab0dMichael Jurka        mWallpaperManager.suggestDesiredDimensions(mWallpaperWidth, mWallpaperHeight);
694c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka    }
695c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka
696ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka    public void setVerticalWallpaperOffset(float offset) {
697ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        mWallpaperOffset.setFinalY(offset);
698ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka    }
699ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka    public float getVerticalWallpaperOffset() {
700ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        return mWallpaperOffset.getCurrY();
701ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka    }
702ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka    public void setHorizontalWallpaperOffset(float offset) {
703ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        mWallpaperOffset.setFinalX(offset);
704ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka    }
705ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka    public float getHorizontalWallpaperOffset() {
706ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        return mWallpaperOffset.getCurrX();
707c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka    }
708c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka
709ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka    private float wallpaperOffsetForCurrentScroll() {
710ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        Display display = mLauncher.getWindowManager().getDefaultDisplay();
711ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        // The wallpaper travel width is how far, from left to right, the wallpaper will move
712ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        // at this orientation (for example, in portrait mode we don't move all the way to the
713ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        // edges of the wallpaper, or otherwise the parallax effect would be too strong)
714ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        int wallpaperTravelWidth = (int) (display.getWidth() *
715ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka                wallpaperTravelToScreenWidthRatio(display.getWidth(), display.getHeight()));
716ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka
717ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        // Set wallpaper offset steps (1 / (number of screens - 1))
718ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        // We have 3 vertical offset states (centered, and then top/bottom aligned
719ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        // for all apps/customize)
720ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        mWallpaperManager.setWallpaperOffsetSteps(1.0f / (getChildCount() - 1), 1.0f / (3 - 1));
721ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka
72209d6eb0f3fb1d81ea59881e6c65512d09d573cc1Michael Jurka        int scrollRange = getScrollRange();
72309d6eb0f3fb1d81ea59881e6c65512d09d573cc1Michael Jurka        float scrollProgressOffset = 0;
72409d6eb0f3fb1d81ea59881e6c65512d09d573cc1Michael Jurka
72509d6eb0f3fb1d81ea59881e6c65512d09d573cc1Michael Jurka        // Account for overscroll: you only see the absolute edge of the wallpaper if
72609d6eb0f3fb1d81ea59881e6c65512d09d573cc1Michael Jurka        // you overscroll as far as you can in landscape mode. Only do this for static wallpapers
72709d6eb0f3fb1d81ea59881e6c65512d09d573cc1Michael Jurka        // because live wallpapers (and probably 3rd party wallpaper providers) rely on the offset
72809d6eb0f3fb1d81ea59881e6c65512d09d573cc1Michael Jurka        // being even intervals from 0 to 1 (eg [0, 0.25, 0.5, 0.75, 1])
72909d6eb0f3fb1d81ea59881e6c65512d09d573cc1Michael Jurka        final boolean isStaticWallpaper = (mWallpaperManager.getWallpaperInfo() == null);
73009d6eb0f3fb1d81ea59881e6c65512d09d573cc1Michael Jurka        if (isStaticWallpaper) {
73109d6eb0f3fb1d81ea59881e6c65512d09d573cc1Michael Jurka            int overscrollOffset = (int) (maxOverScroll() * display.getWidth());
73209d6eb0f3fb1d81ea59881e6c65512d09d573cc1Michael Jurka            scrollProgressOffset += overscrollOffset / (float) getScrollRange();
73309d6eb0f3fb1d81ea59881e6c65512d09d573cc1Michael Jurka            scrollRange += 2 * overscrollOffset;
73409d6eb0f3fb1d81ea59881e6c65512d09d573cc1Michael Jurka        }
73509d6eb0f3fb1d81ea59881e6c65512d09d573cc1Michael Jurka
736ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        float scrollProgress =
73709d6eb0f3fb1d81ea59881e6c65512d09d573cc1Michael Jurka            mScrollX / (float) scrollRange + scrollProgressOffset;
738ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        float offsetInDips = wallpaperTravelWidth * scrollProgress +
739ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            (mWallpaperWidth - wallpaperTravelWidth) / 2;
740ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        float offset = offsetInDips / (float) mWallpaperWidth;
741ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        return offset;
742ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka    }
743ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka    private void syncWallpaperOffsetWithScroll() {
744340c5f3a708efa280a120708594247952ca65182Michael Jurka        if (LauncherApplication.isScreenXLarge()) {
745ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            mWallpaperOffset.setFinalX(wallpaperOffsetForCurrentScroll());
746c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka        }
747c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka    }
748c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka
749c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka    public void updateWallpaperOffsetImmediately() {
750c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka        mUpdateWallpaperOffsetImmediately = true;
751c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka    }
752c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka
753ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka    private void updateWallpaperOffsets() {
754ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        boolean updateNow = false;
755ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        boolean keepUpdating = true;
756ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        if (mUpdateWallpaperOffsetImmediately) {
757ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            updateNow = true;
758ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            keepUpdating = false;
759ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            mWallpaperOffset.jumpToFinal();
760ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            mUpdateWallpaperOffsetImmediately = false;
761c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka        } else {
762ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            updateNow = keepUpdating = mWallpaperOffset.computeScrollOffset();
763ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        }
764ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        if (updateNow) {
765ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            IBinder token = getWindowToken();
766ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            if (token != null) {
767ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka                mWallpaperManager.setWallpaperOffsets(getWindowToken(),
768ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka                        mWallpaperOffset.getCurrX(), mWallpaperOffset.getCurrY());
769ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            }
770ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        }
771ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        if (keepUpdating) {
772c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka            invalidate();
773956091ba7863bd72086275e61084864994dd6fa7Joe Onorato        }
774ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka    }
775ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka
776ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka    class WallpaperOffsetInterpolator {
777ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        float mFinalHorizontalWallpaperOffset = 0.0f;
778ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        float mFinalVerticalWallpaperOffset = 0.5f;
779ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        float mHorizontalWallpaperOffset = 0.0f;
780ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        float mVerticalWallpaperOffset = 0.5f;
781ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        long mLastWallpaperOffsetUpdateTime;
782ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka        boolean mIsMovingFast;
783ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka        boolean mOverrideHorizontalCatchupConstant;
784ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka        float mHorizontalCatchupConstant = 0.35f;
785ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka        float mVerticalCatchupConstant = 0.35f;
786ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka
787ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        public WallpaperOffsetInterpolator() {
788ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        }
789ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka
790ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka        public void setOverrideHorizontalCatchupConstant(boolean override) {
791ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka            mOverrideHorizontalCatchupConstant = override;
792ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka        }
793ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka
794ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka        public void setHorizontalCatchupConstant(float f) {
795ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka            mHorizontalCatchupConstant = f;
796ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka        }
797ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka
798ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka        public void setVerticalCatchupConstant(float f) {
799ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka            mVerticalCatchupConstant = f;
800ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka        }
801ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka
802ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        public boolean computeScrollOffset() {
803ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            if (Float.compare(mHorizontalWallpaperOffset, mFinalHorizontalWallpaperOffset) == 0 &&
804ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka                    Float.compare(mVerticalWallpaperOffset, mFinalVerticalWallpaperOffset) == 0) {
805ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka                mIsMovingFast = false;
806ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka                return false;
807ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            }
808ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            Display display = mLauncher.getWindowManager().getDefaultDisplay();
809ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            boolean isLandscape = display.getWidth() > display.getHeight();
810ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka
811ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            long currentTime = System.currentTimeMillis();
812ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            long timeSinceLastUpdate = currentTime - mLastWallpaperOffsetUpdateTime;
813ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            timeSinceLastUpdate = Math.min((long) (1000/30f), timeSinceLastUpdate);
814ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            timeSinceLastUpdate = Math.max(1L, timeSinceLastUpdate);
815ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka
816ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka            float xdiff = Math.abs(mFinalHorizontalWallpaperOffset - mHorizontalWallpaperOffset);
817ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka            if (!mIsMovingFast && xdiff > 0.07) {
818ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka                mIsMovingFast = true;
819ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka            }
820ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka
821ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka            float fractionToCatchUpIn1MsHorizontal;
822ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka            if (mOverrideHorizontalCatchupConstant) {
823ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka                fractionToCatchUpIn1MsHorizontal = mHorizontalCatchupConstant;
824ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka            } else if (mIsMovingFast) {
825ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka                fractionToCatchUpIn1MsHorizontal = isLandscape ? 0.5f : 0.75f;
826ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka            } else {
827ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka                // slow
828ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka                fractionToCatchUpIn1MsHorizontal = isLandscape ? 0.27f : 0.5f;
829ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka            }
830ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka            float fractionToCatchUpIn1MsVertical = mVerticalCatchupConstant;
831ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka
832ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka
833ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka            fractionToCatchUpIn1MsHorizontal /= 33f;
834ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka            fractionToCatchUpIn1MsVertical /= 33f;
835ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka
836ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            final float UPDATE_THRESHOLD = 0.00001f;
837ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            float hOffsetDelta = mFinalHorizontalWallpaperOffset - mHorizontalWallpaperOffset;
838ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            float vOffsetDelta = mFinalVerticalWallpaperOffset - mVerticalWallpaperOffset;
839ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka            boolean jumpToFinalValue = Math.abs(hOffsetDelta) < UPDATE_THRESHOLD &&
840ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka                Math.abs(vOffsetDelta) < UPDATE_THRESHOLD;
841ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            if (jumpToFinalValue) {
842ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka                mHorizontalWallpaperOffset = mFinalHorizontalWallpaperOffset;
843ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka                mVerticalWallpaperOffset = mFinalVerticalWallpaperOffset;
844ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            } else {
845ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka                float percentToCatchUpVertical =
846ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka                    Math.min(1.0f, timeSinceLastUpdate * fractionToCatchUpIn1MsVertical);
847ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka                float percentToCatchUpHorizontal =
848ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka                    Math.min(1.0f, timeSinceLastUpdate * fractionToCatchUpIn1MsHorizontal);
849ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka                mHorizontalWallpaperOffset += percentToCatchUpHorizontal * hOffsetDelta;
850ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka                mVerticalWallpaperOffset += percentToCatchUpVertical * vOffsetDelta;
851ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            }
852ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka
853ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            mLastWallpaperOffsetUpdateTime = System.currentTimeMillis();
854ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            return true;
855ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        }
856ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka
857ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        public float getCurrX() {
858ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            return mHorizontalWallpaperOffset;
859ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        }
860ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka
861ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        public float getFinalX() {
862ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            return mFinalHorizontalWallpaperOffset;
863ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        }
864ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka
865ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        public float getCurrY() {
866ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            return mVerticalWallpaperOffset;
867ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        }
868ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka
869ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        public float getFinalY() {
870ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            return mFinalVerticalWallpaperOffset;
871ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        }
872ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka
873ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        public void setFinalX(float x) {
874ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            mFinalHorizontalWallpaperOffset = Math.max(0f, Math.min(x, 1.0f));
875ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        }
876ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka
877ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        public void setFinalY(float y) {
878ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            mFinalVerticalWallpaperOffset = Math.max(0f, Math.min(y, 1.0f));
879ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        }
880ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka
881ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        public void jumpToFinal() {
882ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            mHorizontalWallpaperOffset = mFinalHorizontalWallpaperOffset;
883ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            mVerticalWallpaperOffset = mFinalVerticalWallpaperOffset;
884ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        }
8858f573952b8729b4319043ae0908997ecd2d68951Dianne Hackborn    }
886aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung
887340c5f3a708efa280a120708594247952ca65182Michael Jurka    @Override
888340c5f3a708efa280a120708594247952ca65182Michael Jurka    public void computeScroll() {
889340c5f3a708efa280a120708594247952ca65182Michael Jurka        super.computeScroll();
890ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        if (mSyncWallpaperOffsetWithScroll) {
891ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            syncWallpaperOffsetWithScroll();
892ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        }
893340c5f3a708efa280a120708594247952ca65182Michael Jurka    }
894340c5f3a708efa280a120708594247952ca65182Michael Jurka
895f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen    public void showOutlines() {
8963e7c7634531302271270c8cf418abc959d621cbcMichael Jurka        if (!mIsSmall && !mIsInUnshrinkAnimation) {
8979171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung            if (mChildrenOutlineFadeOutAnimation != null) mChildrenOutlineFadeOutAnimation.cancel();
8989171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung            if (mChildrenOutlineFadeInAnimation != null) mChildrenOutlineFadeInAnimation.cancel();
8999171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung            mChildrenOutlineFadeInAnimation = ObjectAnimator.ofFloat(this, "childrenOutlineAlpha", 1.0f);
9009171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung            mChildrenOutlineFadeInAnimation.setDuration(CHILDREN_OUTLINE_FADE_IN_DURATION);
9019171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung            mChildrenOutlineFadeInAnimation.start();
9023e7c7634531302271270c8cf418abc959d621cbcMichael Jurka        }
903f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen    }
904f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen
905f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen    public void hideOutlines() {
9063e7c7634531302271270c8cf418abc959d621cbcMichael Jurka        if (!mIsSmall && !mIsInUnshrinkAnimation) {
9079171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung            if (mChildrenOutlineFadeInAnimation != null) mChildrenOutlineFadeInAnimation.cancel();
9089171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung            if (mChildrenOutlineFadeOutAnimation != null) mChildrenOutlineFadeOutAnimation.cancel();
9099171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung            mChildrenOutlineFadeOutAnimation = ObjectAnimator.ofFloat(this, "childrenOutlineAlpha", 0.0f);
9109171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung            mChildrenOutlineFadeOutAnimation.setDuration(CHILDREN_OUTLINE_FADE_OUT_DURATION);
9119171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung            mChildrenOutlineFadeOutAnimation.setStartDelay(CHILDREN_OUTLINE_FADE_OUT_DELAY);
9129171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung            mChildrenOutlineFadeOutAnimation.start();
9133e7c7634531302271270c8cf418abc959d621cbcMichael Jurka        }
914f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen    }
915f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen
9169171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung    public void setChildrenOutlineAlpha(float alpha) {
9179171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung        mChildrenOutlineAlpha = alpha;
918f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen        for (int i = 0; i < getChildCount(); i++) {
919f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen            CellLayout cl = (CellLayout) getChildAt(i);
920f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen            cl.setBackgroundAlpha(alpha);
921f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen        }
922f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen    }
923f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen
9249171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung    public float getChildrenOutlineAlpha() {
9259171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung        return mChildrenOutlineAlpha;
9269171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung    }
9279171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung
928760e5375f003accf04f789e90a919ed476d4c335Winson Chung    private void showBackgroundGradientForAllApps() {
929760e5375f003accf04f789e90a919ed476d4c335Winson Chung        showBackgroundGradient();
930760e5375f003accf04f789e90a919ed476d4c335Winson Chung        mDrawCustomizeTrayBackground = false;
931760e5375f003accf04f789e90a919ed476d4c335Winson Chung    }
932760e5375f003accf04f789e90a919ed476d4c335Winson Chung
9338d006d5e144ae33e509ea42e0b9760ef6c5bc884Winson Chung    private void showBackgroundGradientForCustomizeTray() {
9348d006d5e144ae33e509ea42e0b9760ef6c5bc884Winson Chung        showBackgroundGradient();
9358d006d5e144ae33e509ea42e0b9760ef6c5bc884Winson Chung        mDrawCustomizeTrayBackground = true;
9368d006d5e144ae33e509ea42e0b9760ef6c5bc884Winson Chung    }
9378d006d5e144ae33e509ea42e0b9760ef6c5bc884Winson Chung
9388d006d5e144ae33e509ea42e0b9760ef6c5bc884Winson Chung    private void showBackgroundGradient() {
939b4b7fa7c0383b6af58d73d3e024b91d586148cf8Winson Chung        if (mBackground == null) return;
9409171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung        if (mBackgroundFadeOutAnimation != null) mBackgroundFadeOutAnimation.cancel();
9419171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung        if (mBackgroundFadeInAnimation != null) mBackgroundFadeInAnimation.cancel();
942e0f5a61a1f105216b0067124bacac69194c0ef70Michael Jurka        mBackgroundFadeInAnimation = ValueAnimator.ofFloat(getBackgroundAlpha(), 1f);
943e0f5a61a1f105216b0067124bacac69194c0ef70Michael Jurka        mBackgroundFadeInAnimation.addUpdateListener(new AnimatorUpdateListener() {
944e0f5a61a1f105216b0067124bacac69194c0ef70Michael Jurka            public void onAnimationUpdate(ValueAnimator animation) {
945e0f5a61a1f105216b0067124bacac69194c0ef70Michael Jurka                setBackgroundAlpha(((Float) animation.getAnimatedValue()).floatValue());
946e0f5a61a1f105216b0067124bacac69194c0ef70Michael Jurka            }
947e0f5a61a1f105216b0067124bacac69194c0ef70Michael Jurka        });
948f135c6c364e92cddb84c1b4a94ed535214b712a6Winson Chung        mBackgroundFadeInAnimation.setInterpolator(new DecelerateInterpolator(1.5f));
9499171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung        mBackgroundFadeInAnimation.setDuration(BACKGROUND_FADE_IN_DURATION);
9509171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung        mBackgroundFadeInAnimation.start();
9519171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung    }
9529171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung
9538d006d5e144ae33e509ea42e0b9760ef6c5bc884Winson Chung    private void hideBackgroundGradient() {
954b4b7fa7c0383b6af58d73d3e024b91d586148cf8Winson Chung        if (mBackground == null) return;
9559171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung        if (mBackgroundFadeInAnimation != null) mBackgroundFadeInAnimation.cancel();
9569171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung        if (mBackgroundFadeOutAnimation != null) mBackgroundFadeOutAnimation.cancel();
957e0f5a61a1f105216b0067124bacac69194c0ef70Michael Jurka        mBackgroundFadeOutAnimation = ValueAnimator.ofFloat(getBackgroundAlpha(), 0f);
958e0f5a61a1f105216b0067124bacac69194c0ef70Michael Jurka        mBackgroundFadeOutAnimation.addUpdateListener(new AnimatorUpdateListener() {
959e0f5a61a1f105216b0067124bacac69194c0ef70Michael Jurka            public void onAnimationUpdate(ValueAnimator animation) {
960e0f5a61a1f105216b0067124bacac69194c0ef70Michael Jurka                setBackgroundAlpha(((Float) animation.getAnimatedValue()).floatValue());
961e0f5a61a1f105216b0067124bacac69194c0ef70Michael Jurka            }
962e0f5a61a1f105216b0067124bacac69194c0ef70Michael Jurka        });
963f135c6c364e92cddb84c1b4a94ed535214b712a6Winson Chung        mBackgroundFadeOutAnimation.setInterpolator(new DecelerateInterpolator(1.5f));
9649171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung        mBackgroundFadeOutAnimation.setDuration(BACKGROUND_FADE_OUT_DURATION);
9659171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung        mBackgroundFadeOutAnimation.start();
9669171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung    }
9679171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung
9689171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung    public void setBackgroundAlpha(float alpha) {
9699171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung        mBackgroundAlpha = alpha;
9709171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung        invalidate();
9719171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung    }
9729171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung
973f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen    public float getBackgroundAlpha() {
974f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen        return mBackgroundAlpha;
975f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen    }
976f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen
9776b879f0a5885274a85333531e091283405d490ccAdam Lesinski    /**
9786b879f0a5885274a85333531e091283405d490ccAdam Lesinski     * Due to 3D transformations, if two CellLayouts are theoretically touching each other,
9796b879f0a5885274a85333531e091283405d490ccAdam Lesinski     * on the xy plane, when one is rotated along the y-axis, the gap between them is perceived
9806b879f0a5885274a85333531e091283405d490ccAdam Lesinski     * as being larger. This method computes what offset the rotated view should be translated
9816b879f0a5885274a85333531e091283405d490ccAdam Lesinski     * in order to minimize this perceived gap.
9826b879f0a5885274a85333531e091283405d490ccAdam Lesinski     * @param degrees Angle of the view
9836b879f0a5885274a85333531e091283405d490ccAdam Lesinski     * @param width Width of the view
9846b879f0a5885274a85333531e091283405d490ccAdam Lesinski     * @param height Height of the view
9856b879f0a5885274a85333531e091283405d490ccAdam Lesinski     * @return Offset to be used in a View.setTranslationX() call
9866b879f0a5885274a85333531e091283405d490ccAdam Lesinski     */
9876b879f0a5885274a85333531e091283405d490ccAdam Lesinski    private float getOffsetXForRotation(float degrees, int width, int height) {
9886b879f0a5885274a85333531e091283405d490ccAdam Lesinski        mMatrix.reset();
9896b879f0a5885274a85333531e091283405d490ccAdam Lesinski        mCamera.save();
9906b879f0a5885274a85333531e091283405d490ccAdam Lesinski        mCamera.rotateY(Math.abs(degrees));
9916b879f0a5885274a85333531e091283405d490ccAdam Lesinski        mCamera.getMatrix(mMatrix);
9926b879f0a5885274a85333531e091283405d490ccAdam Lesinski        mCamera.restore();
9936b879f0a5885274a85333531e091283405d490ccAdam Lesinski
9946b879f0a5885274a85333531e091283405d490ccAdam Lesinski        mMatrix.preTranslate(-width * 0.5f, -height * 0.5f);
9956b879f0a5885274a85333531e091283405d490ccAdam Lesinski        mMatrix.postTranslate(width * 0.5f, height * 0.5f);
9966b879f0a5885274a85333531e091283405d490ccAdam Lesinski        mTempFloat2[0] = width;
9976b879f0a5885274a85333531e091283405d490ccAdam Lesinski        mTempFloat2[1] = height;
9986b879f0a5885274a85333531e091283405d490ccAdam Lesinski        mMatrix.mapPoints(mTempFloat2);
9996b879f0a5885274a85333531e091283405d490ccAdam Lesinski        return (width - mTempFloat2[0]) * (degrees > 0.0f ? 1.0f : -1.0f);
10006b879f0a5885274a85333531e091283405d490ccAdam Lesinski    }
10016b879f0a5885274a85333531e091283405d490ccAdam Lesinski
100268d739365bf650fe7fecf99cd3bfe63a0d41bd12Adam Cohen    float backgroundAlphaInterpolator(float r) {
100368d739365bf650fe7fecf99cd3bfe63a0d41bd12Adam Cohen        float pivotA = 0.1f;
100468d739365bf650fe7fecf99cd3bfe63a0d41bd12Adam Cohen        float pivotB = 0.4f;
100568d739365bf650fe7fecf99cd3bfe63a0d41bd12Adam Cohen        if (r < pivotA) {
100668d739365bf650fe7fecf99cd3bfe63a0d41bd12Adam Cohen            return 0;
100768d739365bf650fe7fecf99cd3bfe63a0d41bd12Adam Cohen        } else if (r > pivotB) {
100868d739365bf650fe7fecf99cd3bfe63a0d41bd12Adam Cohen            return 1.0f;
100968d739365bf650fe7fecf99cd3bfe63a0d41bd12Adam Cohen        } else {
101068d739365bf650fe7fecf99cd3bfe63a0d41bd12Adam Cohen            return (r - pivotA)/(pivotB - pivotA);
101168d739365bf650fe7fecf99cd3bfe63a0d41bd12Adam Cohen        }
101268d739365bf650fe7fecf99cd3bfe63a0d41bd12Adam Cohen    }
101368d739365bf650fe7fecf99cd3bfe63a0d41bd12Adam Cohen
101468d739365bf650fe7fecf99cd3bfe63a0d41bd12Adam Cohen    float overScrollBackgroundAlphaInterpolator(float r) {
1015e0f66b546994a9bdee452851c17a148db02ec300Adam Cohen        float threshold = 0.08f;
101668d739365bf650fe7fecf99cd3bfe63a0d41bd12Adam Cohen
101768d739365bf650fe7fecf99cd3bfe63a0d41bd12Adam Cohen        if (r > mOverScrollMaxBackgroundAlpha) {
101868d739365bf650fe7fecf99cd3bfe63a0d41bd12Adam Cohen            mOverScrollMaxBackgroundAlpha = r;
101968d739365bf650fe7fecf99cd3bfe63a0d41bd12Adam Cohen        } else if (r < mOverScrollMaxBackgroundAlpha) {
102068d739365bf650fe7fecf99cd3bfe63a0d41bd12Adam Cohen            r = mOverScrollMaxBackgroundAlpha;
102168d739365bf650fe7fecf99cd3bfe63a0d41bd12Adam Cohen        }
102268d739365bf650fe7fecf99cd3bfe63a0d41bd12Adam Cohen
102368d739365bf650fe7fecf99cd3bfe63a0d41bd12Adam Cohen        return Math.min(r / threshold, 1.0f);
102468d739365bf650fe7fecf99cd3bfe63a0d41bd12Adam Cohen    }
102568d739365bf650fe7fecf99cd3bfe63a0d41bd12Adam Cohen
1026f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen    @Override
1027f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen    protected void screenScrolled(int screenCenter) {
102821f12b52a54d2658ed14fcf7bb1ca17a198f62beAdam Cohen        final int halfScreenSize = getMeasuredWidth() / 2;
102968d739365bf650fe7fecf99cd3bfe63a0d41bd12Adam Cohen
103021f12b52a54d2658ed14fcf7bb1ca17a198f62beAdam Cohen        for (int i = 0; i < getChildCount(); i++) {
10311b0aaac0b3abd777ed319341f95a8dfff23c79f4Adam Cohen            CellLayout cl = (CellLayout) getChildAt(i);
10321b0aaac0b3abd777ed319341f95a8dfff23c79f4Adam Cohen            if (cl != null) {
1033d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka                int totalDistance = getScaledMeasuredWidth(cl) + mPageSpacing;
103421f12b52a54d2658ed14fcf7bb1ca17a198f62beAdam Cohen                int delta = screenCenter - (getChildOffset(i) -
103521f12b52a54d2658ed14fcf7bb1ca17a198f62beAdam Cohen                        getRelativeChildOffset(i) + halfScreenSize);
1036f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen
1037ddb821981e0919bbd3b4c9a2b6aa1811d6c86bb6Adam Cohen                float scrollProgress = delta / (totalDistance * 1.0f);
103821f12b52a54d2658ed14fcf7bb1ca17a198f62beAdam Cohen                scrollProgress = Math.min(scrollProgress, 1.0f);
103921f12b52a54d2658ed14fcf7bb1ca17a198f62beAdam Cohen                scrollProgress = Math.max(scrollProgress, -1.0f);
1040f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen
1041e0f66b546994a9bdee452851c17a148db02ec300Adam Cohen                // If the current page (i) is being overscrolled, we use a different
1042e0f66b546994a9bdee452851c17a148db02ec300Adam Cohen                // set of rules for setting the background alpha multiplier.
1043e0f66b546994a9bdee452851c17a148db02ec300Adam Cohen                if ((mScrollX < 0 && i == 0) || (mScrollX > mMaxScrollX &&
1044e0f66b546994a9bdee452851c17a148db02ec300Adam Cohen                        i == getChildCount() -1 )) {
1045e0f66b546994a9bdee452851c17a148db02ec300Adam Cohen                    cl.setBackgroundAlphaMultiplier(
1046e0f66b546994a9bdee452851c17a148db02ec300Adam Cohen                            overScrollBackgroundAlphaInterpolator(Math.abs(scrollProgress)));
1047e0f66b546994a9bdee452851c17a148db02ec300Adam Cohen                    mOverScrollPageIndex = i;
1048e0f66b546994a9bdee452851c17a148db02ec300Adam Cohen                } else if (mOverScrollPageIndex != i) {
1049e0f66b546994a9bdee452851c17a148db02ec300Adam Cohen                    cl.setBackgroundAlphaMultiplier(
1050e0f66b546994a9bdee452851c17a148db02ec300Adam Cohen                            backgroundAlphaInterpolator(Math.abs(scrollProgress)));
1051e0f66b546994a9bdee452851c17a148db02ec300Adam Cohen                }
10521b0aaac0b3abd777ed319341f95a8dfff23c79f4Adam Cohen
105321f12b52a54d2658ed14fcf7bb1ca17a198f62beAdam Cohen                float rotation = WORKSPACE_ROTATION * scrollProgress;
10546b879f0a5885274a85333531e091283405d490ccAdam Lesinski                float translationX = getOffsetXForRotation(rotation, cl.getWidth(), cl.getHeight());
10556b879f0a5885274a85333531e091283405d490ccAdam Lesinski                cl.setTranslationX(translationX);
105668d739365bf650fe7fecf99cd3bfe63a0d41bd12Adam Cohen
10571b0aaac0b3abd777ed319341f95a8dfff23c79f4Adam Cohen                cl.setRotationY(rotation);
1058f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen            }
1059f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen        }
1060f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen    }
1061f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen
106200acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato    protected void onAttachedToWindow() {
106300acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato        super.onAttachedToWindow();
1064956091ba7863bd72086275e61084864994dd6fa7Joe Onorato        computeScroll();
106500acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato        mDragController.setWindowToken(getWindowToken());
106600acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato    }
106700acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato
106831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    @Override
106928750fba6a2d141eb9a1e566718c17236030b815Michael Jurka    protected void onLayout(boolean changed, int left, int top, int right, int bottom) {
1070c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka        if (mFirstLayout && mCurrentPage >= 0 && mCurrentPage < getChildCount()) {
1071c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka            mUpdateWallpaperOffsetImmediately = true;
1072c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka        }
10730142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka        super.onLayout(changed, left, top, right, bottom);
1074aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung
107579212d81361d1ad8c941c48f8323eb526643ca68Michael Jurka        // if shrinkToBottom() is called on initialization, it has to be deferred
107679212d81361d1ad8c941c48f8323eb526643ca68Michael Jurka        // until after the first call to onLayout so that it has the correct width
1077883f55b1d261862b0de1b43af0b17d351761a9c6Michael Jurka        if (mWaitingToShrink) {
1078696a67969d657d38eff33996633f08da0e21841fAdam Cohen            // shrink can trigger a synchronous onLayout call, so we
1079696a67969d657d38eff33996633f08da0e21841fAdam Cohen            // post this to avoid a stack overflow / tangled onLayout calls
1080696a67969d657d38eff33996633f08da0e21841fAdam Cohen            post(new Runnable() {
1081696a67969d657d38eff33996633f08da0e21841fAdam Cohen                public void run() {
1082696a67969d657d38eff33996633f08da0e21841fAdam Cohen                    shrink(mWaitingToShrinkState, false);
1083696a67969d657d38eff33996633f08da0e21841fAdam Cohen                    mWaitingToShrink = false;
1084696a67969d657d38eff33996633f08da0e21841fAdam Cohen                }
1085696a67969d657d38eff33996633f08da0e21841fAdam Cohen            });
108679212d81361d1ad8c941c48f8323eb526643ca68Michael Jurka        }
108779212d81361d1ad8c941c48f8323eb526643ca68Michael Jurka
1088aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung        if (LauncherApplication.isInPlaceRotationEnabled()) {
1089aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung            // When the device is rotated, the scroll position of the current screen
1090aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung            // needs to be refreshed
10910142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka            setCurrentPage(getCurrentPage());
1092aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung        }
109331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
109431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
109531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    @Override
10969171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung    protected void onDraw(Canvas canvas) {
1097ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        updateWallpaperOffsets();
1098c5b262ccf639fedac2aff5bb8238342f95396338Michael Jurka
10999171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung        // Draw the background gradient if necessary
1100b4b7fa7c0383b6af58d73d3e024b91d586148cf8Winson Chung        if (mBackground != null && mBackgroundAlpha > 0.0f) {
11018d006d5e144ae33e509ea42e0b9760ef6c5bc884Winson Chung            int alpha = (int) (mBackgroundAlpha * 255);
11028d006d5e144ae33e509ea42e0b9760ef6c5bc884Winson Chung            if (mDrawCustomizeTrayBackground) {
110388127038178b3bbf0eb91103a31e682cc0615074Winson Chung                // Find out where to offset the gradient for the customization tray content
110488127038178b3bbf0eb91103a31e682cc0615074Winson Chung                mCustomizationDrawer.getLocationOnScreen(mCustomizationDrawerPos);
110588127038178b3bbf0eb91103a31e682cc0615074Winson Chung                final Matrix m = mCustomizationDrawer.getMatrix();
110688127038178b3bbf0eb91103a31e682cc0615074Winson Chung                mCustomizationDrawerTransformedPos[0] = 0.0f;
110788127038178b3bbf0eb91103a31e682cc0615074Winson Chung                mCustomizationDrawerTransformedPos[1] = mCustomizationDrawerContent.getTop();
110888127038178b3bbf0eb91103a31e682cc0615074Winson Chung                m.mapPoints(mCustomizationDrawerTransformedPos);
110988127038178b3bbf0eb91103a31e682cc0615074Winson Chung
1110760e5375f003accf04f789e90a919ed476d4c335Winson Chung                // Draw the bg glow behind the gradient
1111760e5375f003accf04f789e90a919ed476d4c335Winson Chung                mCustomizeTrayBackground.setAlpha(alpha);
1112760e5375f003accf04f789e90a919ed476d4c335Winson Chung                mCustomizeTrayBackground.setBounds(mScrollX, 0, mScrollX + getMeasuredWidth(),
1113760e5375f003accf04f789e90a919ed476d4c335Winson Chung                        getMeasuredHeight());
1114760e5375f003accf04f789e90a919ed476d4c335Winson Chung                mCustomizeTrayBackground.draw(canvas);
1115760e5375f003accf04f789e90a919ed476d4c335Winson Chung
111688127038178b3bbf0eb91103a31e682cc0615074Winson Chung                // Draw the bg gradient
111788127038178b3bbf0eb91103a31e682cc0615074Winson Chung                final int  offset = (int) (mCustomizationDrawerPos[1] +
111888127038178b3bbf0eb91103a31e682cc0615074Winson Chung                        mCustomizationDrawerTransformedPos[1]);
1119ce93f7ebdb296846ba2f01b7eb3e69a3230f3025Winson Chung                mBackground.setAlpha(alpha);
112088127038178b3bbf0eb91103a31e682cc0615074Winson Chung                mBackground.setBounds(mScrollX, offset, mScrollX + getMeasuredWidth(),
112188127038178b3bbf0eb91103a31e682cc0615074Winson Chung                        offset + getMeasuredHeight());
112288127038178b3bbf0eb91103a31e682cc0615074Winson Chung                mBackground.draw(canvas);
1123ce93f7ebdb296846ba2f01b7eb3e69a3230f3025Winson Chung            } else {
1124ce93f7ebdb296846ba2f01b7eb3e69a3230f3025Winson Chung                mBackground.setAlpha(alpha);
1125ce93f7ebdb296846ba2f01b7eb3e69a3230f3025Winson Chung                mBackground.setBounds(mScrollX, 0, mScrollX + getMeasuredWidth(),
1126ce93f7ebdb296846ba2f01b7eb3e69a3230f3025Winson Chung                        getMeasuredHeight());
1127ce93f7ebdb296846ba2f01b7eb3e69a3230f3025Winson Chung                mBackground.draw(canvas);
11288d006d5e144ae33e509ea42e0b9760ef6c5bc884Winson Chung            }
11299171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung        }
11309171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung        super.onDraw(canvas);
11319171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung    }
11329171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung
11339171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung    @Override
11340142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka    protected void dispatchDraw(Canvas canvas) {
1135c0e8fcae492730210b2b8b6d5bb3d65636bad245Michael Jurka        if (mIsSmall || mIsInUnshrinkAnimation) {
11360142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka            // Draw all the workspaces if we're small
11370142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka            final int pageCount = getChildCount();
11380142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka            final long drawingTime = getDrawingTime();
11390142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka            for (int i = 0; i < pageCount; i++) {
11400142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka                final View page = (View) getChildAt(i);
11410142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka
11420142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka                drawChild(canvas, page, drawingTime);
11430142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka            }
11440142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka        } else {
11450142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka            super.dispatchDraw(canvas);
1146cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy
11470207c522472d7252f146f4d39efa456ca5248c6bPatrick Dubroy            final int width = getWidth();
11480207c522472d7252f146f4d39efa456ca5248c6bPatrick Dubroy            final int height = getHeight();
11490207c522472d7252f146f4d39efa456ca5248c6bPatrick Dubroy
11500207c522472d7252f146f4d39efa456ca5248c6bPatrick Dubroy            // In portrait orientation, draw the glowing edge when dragging to adjacent screens
11510207c522472d7252f146f4d39efa456ca5248c6bPatrick Dubroy            if (mInScrollArea && (height > width)) {
11520207c522472d7252f146f4d39efa456ca5248c6bPatrick Dubroy                final int pageHeight = getChildAt(0).getHeight();
11530207c522472d7252f146f4d39efa456ca5248c6bPatrick Dubroy
11540207c522472d7252f146f4d39efa456ca5248c6bPatrick Dubroy                // This determines the height of the glowing edge: 90% of the page height
11550207c522472d7252f146f4d39efa456ca5248c6bPatrick Dubroy                final int padding = (int) ((height - pageHeight) * 0.5f + pageHeight * 0.1f);
11560207c522472d7252f146f4d39efa456ca5248c6bPatrick Dubroy
11570207c522472d7252f146f4d39efa456ca5248c6bPatrick Dubroy                final CellLayout leftPage = (CellLayout) getChildAt(mCurrentPage - 1);
11580207c522472d7252f146f4d39efa456ca5248c6bPatrick Dubroy                final CellLayout rightPage = (CellLayout) getChildAt(mCurrentPage + 1);
11590207c522472d7252f146f4d39efa456ca5248c6bPatrick Dubroy
116033945b21544bc98381df17726a3537c292d8c985Michael Jurka                if (leftPage != null && leftPage.getIsDragOverlapping()) {
11610207c522472d7252f146f4d39efa456ca5248c6bPatrick Dubroy                    final Drawable d = getResources().getDrawable(R.drawable.page_hover_left);
11620207c522472d7252f146f4d39efa456ca5248c6bPatrick Dubroy                    d.setBounds(mScrollX, padding, mScrollX + d.getIntrinsicWidth(), height - padding);
11630207c522472d7252f146f4d39efa456ca5248c6bPatrick Dubroy                    d.draw(canvas);
116433945b21544bc98381df17726a3537c292d8c985Michael Jurka                } else if (rightPage != null && rightPage.getIsDragOverlapping()) {
11650207c522472d7252f146f4d39efa456ca5248c6bPatrick Dubroy                    final Drawable d = getResources().getDrawable(R.drawable.page_hover_right);
11660207c522472d7252f146f4d39efa456ca5248c6bPatrick Dubroy                    d.setBounds(mScrollX + width - d.getIntrinsicWidth(), padding, mScrollX + width, height - padding);
11670207c522472d7252f146f4d39efa456ca5248c6bPatrick Dubroy                    d.draw(canvas);
11680207c522472d7252f146f4d39efa456ca5248c6bPatrick Dubroy                }
11690207c522472d7252f146f4d39efa456ca5248c6bPatrick Dubroy            }
11700207c522472d7252f146f4d39efa456ca5248c6bPatrick Dubroy
1171cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy            if (mDropView != null) {
11728ae3a62e2e48dfb8f860c8b6e2c7e72b9595d7aaPatrick Dubroy                // We are animating an item that was just dropped on the home screen.
11738ae3a62e2e48dfb8f860c8b6e2c7e72b9595d7aaPatrick Dubroy                // Render its View in the current animation position.
1174cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy                canvas.save(Canvas.MATRIX_SAVE_FLAG);
1175cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy                final int xPos = mDropViewPos[0] - mDropView.getScrollX();
1176cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy                final int yPos = mDropViewPos[1] - mDropView.getScrollY();
1177cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy                canvas.translate(xPos, yPos);
1178cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy                mDropView.draw(canvas);
1179cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy                canvas.restore();
1180cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy            }
118131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
118231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
118331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
118431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    @Override
118531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    protected boolean onRequestFocusInDescendants(int direction, Rect previouslyFocusedRect) {
1186678862186af4ea70d9b4012c9bc127e7fea5e607Joe Onorato        if (!mLauncher.isAllAppsVisible()) {
118731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            final Folder openFolder = getOpenFolder();
118831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            if (openFolder != null) {
118931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                return openFolder.requestFocus(direction, previouslyFocusedRect);
119031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            } else {
11910142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka                return super.onRequestFocusInDescendants(direction, previouslyFocusedRect);
119231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            }
119331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
119431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        return false;
119531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
119631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
119731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    @Override
1198c2e24c0a37ddeab930f731c062705d435e477f75Romain Guy    public void addFocusables(ArrayList<View> views, int direction, int focusableMode) {
1199678862186af4ea70d9b4012c9bc127e7fea5e607Joe Onorato        if (!mLauncher.isAllAppsVisible()) {
120031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            final Folder openFolder = getOpenFolder();
12010142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka            if (openFolder != null) {
120231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                openFolder.addFocusables(views, direction);
12030142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka            } else {
12040142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka                super.addFocusables(views, direction, focusableMode);
120531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            }
120631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
120731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
120831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
120931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    @Override
12107bb1749c69384faf00b238f0684d3b2e23406451Joe Onorato    public boolean dispatchTouchEvent(MotionEvent ev) {
12117bb1749c69384faf00b238f0684d3b2e23406451Joe Onorato        if (ev.getAction() == MotionEvent.ACTION_DOWN) {
121254dd75463d0eb47c2f468e19063bdc4141dfdf74Michael Jurka            // (In XLarge mode, the workspace is shrunken below all apps, and responds to taps
121354dd75463d0eb47c2f468e19063bdc4141dfdf74Michael Jurka            // ie when you click on a mini-screen, it zooms back to that screen)
12146b4adbc0558fcebbd44998bd00dcd334ddbee32dJoe Onorato            if (!LauncherApplication.isScreenXLarge() && mLauncher.isAllAppsVisible()) {
12157bb1749c69384faf00b238f0684d3b2e23406451Joe Onorato                return false;
12167bb1749c69384faf00b238f0684d3b2e23406451Joe Onorato            }
12177bb1749c69384faf00b238f0684d3b2e23406451Joe Onorato        }
12186b879f0a5885274a85333531e091283405d490ccAdam Lesinski
12197bb1749c69384faf00b238f0684d3b2e23406451Joe Onorato        return super.dispatchTouchEvent(ev);
12207bb1749c69384faf00b238f0684d3b2e23406451Joe Onorato    }
12217bb1749c69384faf00b238f0684d3b2e23406451Joe Onorato
12220142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka    void enableChildrenCache(int fromPage, int toPage) {
12230142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka        if (fromPage > toPage) {
12240142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka            final int temp = fromPage;
12250142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka            fromPage = toPage;
12260142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka            toPage = temp;
12273a2b3f2be58843d26549fb0ec6c6533627c7cd19Mike Cleron        }
1228aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung
1229dee0589388ba0f6373912e18bf86243282fb3b9bMichael Jurka        final int screenCount = getChildCount();
1230fea5d0250767ab938f623a404e6292a32dd2fdf5Adam Powell
12310142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka        fromPage = Math.max(fromPage, 0);
12320142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka        toPage = Math.min(toPage, screenCount - 1);
1233fea5d0250767ab938f623a404e6292a32dd2fdf5Adam Powell
12340142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka        for (int i = fromPage; i <= toPage; i++) {
123531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            final CellLayout layout = (CellLayout) getChildAt(i);
123631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            layout.setChildrenDrawnWithCacheEnabled(true);
123731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            layout.setChildrenDrawingCacheEnabled(true);
123831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
123931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
124031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
124131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    void clearChildrenCache() {
1242dee0589388ba0f6373912e18bf86243282fb3b9bMichael Jurka        final int screenCount = getChildCount();
1243dee0589388ba0f6373912e18bf86243282fb3b9bMichael Jurka        for (int i = 0; i < screenCount; i++) {
124431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            final CellLayout layout = (CellLayout) getChildAt(i);
124531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            layout.setChildrenDrawnWithCacheEnabled(false);
124631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
124731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
124831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
124931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    @Override
125031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    public boolean onTouchEvent(MotionEvent ev) {
1251be9093426aec3a6d412811a12d2400e645613242Adam Cohen        AllAppsPagedView allApps = (AllAppsPagedView)
1252be9093426aec3a6d412811a12d2400e645613242Adam Cohen                mLauncher.findViewById(R.id.all_apps_paged_view);
12536b879f0a5885274a85333531e091283405d490ccAdam Lesinski
1254be9093426aec3a6d412811a12d2400e645613242Adam Cohen        if (mLauncher.isAllAppsVisible() && mShrinkState == ShrinkState.BOTTOM_HIDDEN
1255be9093426aec3a6d412811a12d2400e645613242Adam Cohen                && allApps != null) {
1256be9093426aec3a6d412811a12d2400e645613242Adam Cohen            if (ev.getAction() == MotionEvent.ACTION_UP &&
1257be9093426aec3a6d412811a12d2400e645613242Adam Cohen                    allApps.getTouchState() == TOUCH_STATE_REST) {
12586b879f0a5885274a85333531e091283405d490ccAdam Lesinski
1259be9093426aec3a6d412811a12d2400e645613242Adam Cohen                // Cancel any scrolling that is in progress.
1260be9093426aec3a6d412811a12d2400e645613242Adam Cohen                if (!mScroller.isFinished()) {
1261be9093426aec3a6d412811a12d2400e645613242Adam Cohen                    mScroller.abortAnimation();
1262be9093426aec3a6d412811a12d2400e645613242Adam Cohen                }
1263be9093426aec3a6d412811a12d2400e645613242Adam Cohen                setCurrentPage(mCurrentPage);
126431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
1265be9093426aec3a6d412811a12d2400e645613242Adam Cohen                if (mShrinkState == ShrinkState.BOTTOM_HIDDEN) {
1266be9093426aec3a6d412811a12d2400e645613242Adam Cohen                    mLauncher.showWorkspace(true);
1267be9093426aec3a6d412811a12d2400e645613242Adam Cohen                }
1268be9093426aec3a6d412811a12d2400e645613242Adam Cohen                allApps.onTouchEvent(ev);
1269be9093426aec3a6d412811a12d2400e645613242Adam Cohen                return true;
1270be9093426aec3a6d412811a12d2400e645613242Adam Cohen            } else {
1271be9093426aec3a6d412811a12d2400e645613242Adam Cohen                return allApps.onTouchEvent(ev);
1272be9093426aec3a6d412811a12d2400e645613242Adam Cohen            }
1273be9093426aec3a6d412811a12d2400e645613242Adam Cohen        }
12740142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka        return super.onTouchEvent(ev);
127531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
1276aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung
1277ce7e05fbe8abd5f25ec47e0e05b5cc76ceb39d2eMichael Jurka    protected void enableChildrenLayers(boolean enable) {
1278ce7e05fbe8abd5f25ec47e0e05b5cc76ceb39d2eMichael Jurka        for (int i = 0; i < getPageCount(); i++) {
1279a7f801fc5b5715223e868ed599da69c5edf436eeMichael Jurka            ((ViewGroup)getChildAt(i)).setChildrenLayersEnabled(enable);
1280ce7e05fbe8abd5f25ec47e0e05b5cc76ceb39d2eMichael Jurka        }
1281ce7e05fbe8abd5f25ec47e0e05b5cc76ceb39d2eMichael Jurka    }
1282ce7e05fbe8abd5f25ec47e0e05b5cc76ceb39d2eMichael Jurka    @Override
1283ce7e05fbe8abd5f25ec47e0e05b5cc76ceb39d2eMichael Jurka    protected void pageBeginMoving() {
1284ce7e05fbe8abd5f25ec47e0e05b5cc76ceb39d2eMichael Jurka        enableChildrenLayers(true);
1285ce7e05fbe8abd5f25ec47e0e05b5cc76ceb39d2eMichael Jurka        super.pageBeginMoving();
1286ce7e05fbe8abd5f25ec47e0e05b5cc76ceb39d2eMichael Jurka    }
1287ce7e05fbe8abd5f25ec47e0e05b5cc76ceb39d2eMichael Jurka
1288ce7e05fbe8abd5f25ec47e0e05b5cc76ceb39d2eMichael Jurka    @Override
1289ce7e05fbe8abd5f25ec47e0e05b5cc76ceb39d2eMichael Jurka    protected void pageEndMoving() {
1290ce7e05fbe8abd5f25ec47e0e05b5cc76ceb39d2eMichael Jurka        if (!mIsSmall && !mIsInUnshrinkAnimation) {
1291ce7e05fbe8abd5f25ec47e0e05b5cc76ceb39d2eMichael Jurka            enableChildrenLayers(false);
1292ce7e05fbe8abd5f25ec47e0e05b5cc76ceb39d2eMichael Jurka        }
1293ce7e05fbe8abd5f25ec47e0e05b5cc76ceb39d2eMichael Jurka        super.pageEndMoving();
1294ce7e05fbe8abd5f25ec47e0e05b5cc76ceb39d2eMichael Jurka    }
1295ce7e05fbe8abd5f25ec47e0e05b5cc76ceb39d2eMichael Jurka
12961d0867c8de6a889bccde9b7e768daef182a25e5cJeff Brown    @Override
12971d0867c8de6a889bccde9b7e768daef182a25e5cJeff Brown    protected void onWallpaperTap(MotionEvent ev) {
12981d0867c8de6a889bccde9b7e768daef182a25e5cJeff Brown        final int[] position = mTempCell;
12991d0867c8de6a889bccde9b7e768daef182a25e5cJeff Brown        getLocationOnScreen(position);
13001d0867c8de6a889bccde9b7e768daef182a25e5cJeff Brown
13011d0867c8de6a889bccde9b7e768daef182a25e5cJeff Brown        int pointerIndex = ev.getActionIndex();
13021d0867c8de6a889bccde9b7e768daef182a25e5cJeff Brown        position[0] += (int) ev.getX(pointerIndex);
13031d0867c8de6a889bccde9b7e768daef182a25e5cJeff Brown        position[1] += (int) ev.getY(pointerIndex);
13041d0867c8de6a889bccde9b7e768daef182a25e5cJeff Brown
13051d0867c8de6a889bccde9b7e768daef182a25e5cJeff Brown        mWallpaperManager.sendWallpaperCommand(getWindowToken(),
13061d0867c8de6a889bccde9b7e768daef182a25e5cJeff Brown                ev.getAction() == MotionEvent.ACTION_UP
13071d0867c8de6a889bccde9b7e768daef182a25e5cJeff Brown                        ? WallpaperManager.COMMAND_TAP : WallpaperManager.COMMAND_SECONDARY_TAP,
13081d0867c8de6a889bccde9b7e768daef182a25e5cJeff Brown                position[0], position[1], 0, null);
13091d0867c8de6a889bccde9b7e768daef182a25e5cJeff Brown    }
13101d0867c8de6a889bccde9b7e768daef182a25e5cJeff Brown
131101f0ed4126be412c8c4352026dad3b2a49832267Michael Jurka    public boolean isSmall() {
131201f0ed4126be412c8c4352026dad3b2a49832267Michael Jurka        return mIsSmall;
131301f0ed4126be412c8c4352026dad3b2a49832267Michael Jurka    }
131401f0ed4126be412c8c4352026dad3b2a49832267Michael Jurka
1315a985e598f6071f4caca15ba3cb6b2cd3e38b217dAdam Cohen    private float getYScaleForScreen(int screen) {
1316a985e598f6071f4caca15ba3cb6b2cd3e38b217dAdam Cohen        int x = Math.abs(screen - 2);
1317a985e598f6071f4caca15ba3cb6b2cd3e38b217dAdam Cohen
1318a985e598f6071f4caca15ba3cb6b2cd3e38b217dAdam Cohen        // TODO: This should be generalized for use with arbitrary rotation angles.
1319a985e598f6071f4caca15ba3cb6b2cd3e38b217dAdam Cohen        switch(x) {
1320a985e598f6071f4caca15ba3cb6b2cd3e38b217dAdam Cohen            case 0: return EXTRA_SCALE_FACTOR_0;
1321a985e598f6071f4caca15ba3cb6b2cd3e38b217dAdam Cohen            case 1: return EXTRA_SCALE_FACTOR_1;
1322a985e598f6071f4caca15ba3cb6b2cd3e38b217dAdam Cohen            case 2: return EXTRA_SCALE_FACTOR_2;
1323a985e598f6071f4caca15ba3cb6b2cd3e38b217dAdam Cohen        }
1324a985e598f6071f4caca15ba3cb6b2cd3e38b217dAdam Cohen        return 1.0f;
1325a985e598f6071f4caca15ba3cb6b2cd3e38b217dAdam Cohen    }
1326a985e598f6071f4caca15ba3cb6b2cd3e38b217dAdam Cohen
1327af91de06b99e2d5d41ce79fefa34ce2111e51917Michael Jurka    public void shrink(ShrinkState shrinkState) {
1328af91de06b99e2d5d41ce79fefa34ce2111e51917Michael Jurka        shrink(shrinkState, true);
1329af91de06b99e2d5d41ce79fefa34ce2111e51917Michael Jurka    }
13309171e6d8a2b7b5aa136617b9779a8bbadc5259f7Winson Chung
13313c38d561e6976ffc54eda61ed669870bbb8ec207Michael Jurka    private int getCustomizeDrawerHeight() {
13323c38d561e6976ffc54eda61ed669870bbb8ec207Michael Jurka        TabHost customizationDrawer = mLauncher.getCustomizationDrawer();
13333c38d561e6976ffc54eda61ed669870bbb8ec207Michael Jurka        int height = customizationDrawer.getHeight();
13343c38d561e6976ffc54eda61ed669870bbb8ec207Michael Jurka        TabWidget tabWidget = (TabWidget)
13353c38d561e6976ffc54eda61ed669870bbb8ec207Michael Jurka            customizationDrawer.findViewById(com.android.internal.R.id.tabs);
13363c38d561e6976ffc54eda61ed669870bbb8ec207Michael Jurka        if (tabWidget.getTabCount() > 0) {
13373c38d561e6976ffc54eda61ed669870bbb8ec207Michael Jurka            TextView tabText = (TextView) tabWidget.getChildTabViewAt(0);
13383c38d561e6976ffc54eda61ed669870bbb8ec207Michael Jurka            // subtract the empty space above the tab text
13393c38d561e6976ffc54eda61ed669870bbb8ec207Michael Jurka            height -= ((tabWidget.getHeight() - tabText.getLineHeight())) / 2;
13403c38d561e6976ffc54eda61ed669870bbb8ec207Michael Jurka        }
13413c38d561e6976ffc54eda61ed669870bbb8ec207Michael Jurka        return height;
13423c38d561e6976ffc54eda61ed669870bbb8ec207Michael Jurka    }
13433c38d561e6976ffc54eda61ed669870bbb8ec207Michael Jurka
1344af91de06b99e2d5d41ce79fefa34ce2111e51917Michael Jurka    // we use this to shrink the workspace for the all apps view and the customize view
1345af91de06b99e2d5d41ce79fefa34ce2111e51917Michael Jurka    public void shrink(ShrinkState shrinkState, boolean animated) {
13464c1085f8d94be2394dbce2866e94f60ac15ad109Michael Jurka        // In the launcher interaction model, we're never in the state where we're shrunken and
13474c1085f8d94be2394dbce2866e94f60ac15ad109Michael Jurka        // visible in the bottom of the screen, and then want to fade to being invisible.
13484c1085f8d94be2394dbce2866e94f60ac15ad109Michael Jurka        // After spring loaded mode ends, this method was getting called twice, the first time
13494c1085f8d94be2394dbce2866e94f60ac15ad109Michael Jurka        // with BOTTOM_VISIBLE (what we want) and a second time with BOTTOM_INVISIBLE (not
13504c1085f8d94be2394dbce2866e94f60ac15ad109Michael Jurka        // what we want). As a temporary solution, we just change the second call to BOTTOM_VISIBLE
13514c1085f8d94be2394dbce2866e94f60ac15ad109Michael Jurka        if (mIsSmall && mShrinkState == ShrinkState.BOTTOM_VISIBLE) {
13524c1085f8d94be2394dbce2866e94f60ac15ad109Michael Jurka            shrinkState = ShrinkState.BOTTOM_VISIBLE;
13534c1085f8d94be2394dbce2866e94f60ac15ad109Michael Jurka        }
1354883f55b1d261862b0de1b43af0b17d351761a9c6Michael Jurka        if (mFirstLayout) {
1355883f55b1d261862b0de1b43af0b17d351761a9c6Michael Jurka            // (mFirstLayout == "first layout has not happened yet")
1356883f55b1d261862b0de1b43af0b17d351761a9c6Michael Jurka            // if we get a call to shrink() as part of our initialization (for example, if
1357883f55b1d261862b0de1b43af0b17d351761a9c6Michael Jurka            // Launcher is started in All Apps mode) then we need to wait for a layout call
1358883f55b1d261862b0de1b43af0b17d351761a9c6Michael Jurka            // to get our width so we can layout the mini-screen views correctly
1359883f55b1d261862b0de1b43af0b17d351761a9c6Michael Jurka            mWaitingToShrink = true;
1360af91de06b99e2d5d41ce79fefa34ce2111e51917Michael Jurka            mWaitingToShrinkState = shrinkState;
1361883f55b1d261862b0de1b43af0b17d351761a9c6Michael Jurka            return;
1362883f55b1d261862b0de1b43af0b17d351761a9c6Michael Jurka        }
13633e7c7634531302271270c8cf418abc959d621cbcMichael Jurka        // Stop any scrolling, move to the current page right away
1364a997ac26664befbd0d5b172e36ef9e8b2c63b435Michael Jurka        setCurrentPage((mNextPage != INVALID_PAGE) ? mNextPage : mCurrentPage);
1365d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka        if (!mIsDragInProcess) {
13660dfcf68b58bec1ac74f9b8700e3357f8e6d8b4a3Patrick Dubroy            updateWhichPagesAcceptDrops(shrinkState);
1367d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka        }
13683e7c7634531302271270c8cf418abc959d621cbcMichael Jurka
13691b0aaac0b3abd777ed319341f95a8dfff23c79f4Adam Cohen        CellLayout currentPage = (CellLayout) getChildAt(mCurrentPage);
13700dfcf68b58bec1ac74f9b8700e3357f8e6d8b4a3Patrick Dubroy        if (currentPage == null) {
13710dfcf68b58bec1ac74f9b8700e3357f8e6d8b4a3Patrick Dubroy            Log.w(TAG, "currentPage is NULL! mCurrentPage " + mCurrentPage
13720dfcf68b58bec1ac74f9b8700e3357f8e6d8b4a3Patrick Dubroy                    + " mNextPage " + mNextPage);
13730dfcf68b58bec1ac74f9b8700e3357f8e6d8b4a3Patrick Dubroy            return;
13740dfcf68b58bec1ac74f9b8700e3357f8e6d8b4a3Patrick Dubroy        }
1375ddb821981e0919bbd3b4c9a2b6aa1811d6c86bb6Adam Cohen        if (currentPage.getBackgroundAlphaMultiplier() < 1.0f) {
1376ddb821981e0919bbd3b4c9a2b6aa1811d6c86bb6Adam Cohen            currentPage.setBackgroundAlpha(0.0f);
1377ddb821981e0919bbd3b4c9a2b6aa1811d6c86bb6Adam Cohen        }
13781b0aaac0b3abd777ed319341f95a8dfff23c79f4Adam Cohen        currentPage.setBackgroundAlphaMultiplier(1.0f);
13791b0aaac0b3abd777ed319341f95a8dfff23c79f4Adam Cohen
13800dfcf68b58bec1ac74f9b8700e3357f8e6d8b4a3Patrick Dubroy        mIsSmall = true;
13810dfcf68b58bec1ac74f9b8700e3357f8e6d8b4a3Patrick Dubroy        mShrinkState = shrinkState;
13820dfcf68b58bec1ac74f9b8700e3357f8e6d8b4a3Patrick Dubroy
13830dfcf68b58bec1ac74f9b8700e3357f8e6d8b4a3Patrick Dubroy        // we intercept and reject all touch events when we're small, so be sure to reset the state
13840dfcf68b58bec1ac74f9b8700e3357f8e6d8b4a3Patrick Dubroy        mTouchState = TOUCH_STATE_REST;
13850dfcf68b58bec1ac74f9b8700e3357f8e6d8b4a3Patrick Dubroy        mActivePointerId = INVALID_POINTER;
13860dfcf68b58bec1ac74f9b8700e3357f8e6d8b4a3Patrick Dubroy
13877247f6315baf16eacb3286f21bd80321385c1defPatrick Dubroy        final Resources res = getResources();
1388dee0589388ba0f6373912e18bf86243282fb3b9bMichael Jurka        final int screenWidth = getWidth();
1389213d96354e7407dba5c9715eb10d04bebd82c395Michael Jurka        final int screenHeight = getHeight();
13900142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka
13910142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka        // Making the assumption that all pages have the same width as the 0th
13920142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka        final int pageWidth = getChildAt(0).getMeasuredWidth();
13930142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka        final int pageHeight = getChildAt(0).getMeasuredHeight();
13940142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka
13950142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka        final int scaledPageWidth = (int) (SHRINK_FACTOR * pageWidth);
13960142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka        final int scaledPageHeight = (int) (SHRINK_FACTOR * pageHeight);
1397a985e598f6071f4caca15ba3cb6b2cd3e38b217dAdam Cohen        final float extraScaledSpacing = res.getDimension(R.dimen.smallScreenExtraSpacing);
1398dee0589388ba0f6373912e18bf86243282fb3b9bMichael Jurka
1399dee0589388ba0f6373912e18bf86243282fb3b9bMichael Jurka        final int screenCount = getChildCount();
1400a985e598f6071f4caca15ba3cb6b2cd3e38b217dAdam Cohen        float totalWidth = screenCount * scaledPageWidth + (screenCount - 1) * extraScaledSpacing;
1401213d96354e7407dba5c9715eb10d04bebd82c395Michael Jurka
1402df4b83dd9d6380ab963c62d1f9d1312efc87cb0fWinson Chung        boolean isPortrait = getMeasuredHeight() > getMeasuredWidth();
1403742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka        float y = (isPortrait ?
1404ef0066b52d2754ca0553ec79613c650b5649afaaWinson Chung                getResources().getDimension(R.dimen.allAppsSmallScreenVerticalMarginPortrait) :
1405ef0066b52d2754ca0553ec79613c650b5649afaaWinson Chung                getResources().getDimension(R.dimen.allAppsSmallScreenVerticalMarginLandscape));
14063e7c7634531302271270c8cf418abc959d621cbcMichael Jurka        float finalAlpha = 1.0f;
14073e7c7634531302271270c8cf418abc959d621cbcMichael Jurka        float extraShrinkFactor = 1.0f;
1408f16e571330f030e445c4f7f63f55d093337ffd87Adam Cohen
1409af91de06b99e2d5d41ce79fefa34ce2111e51917Michael Jurka        if (shrinkState == ShrinkState.BOTTOM_VISIBLE) {
1410742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka             y = screenHeight - y - scaledPageHeight;
1411af91de06b99e2d5d41ce79fefa34ce2111e51917Michael Jurka        } else if (shrinkState == ShrinkState.BOTTOM_HIDDEN) {
14123e7c7634531302271270c8cf418abc959d621cbcMichael Jurka            // We shrink and disappear to nothing in the case of all apps
14133e7c7634531302271270c8cf418abc959d621cbcMichael Jurka            // (which is when we shrink to the bottom)
1414742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka            y = screenHeight - y - scaledPageHeight;
14156b879f0a5885274a85333531e091283405d490ccAdam Lesinski            finalAlpha = 0.0f;
1416af91de06b99e2d5d41ce79fefa34ce2111e51917Michael Jurka        } else if (shrinkState == ShrinkState.MIDDLE) {
1417742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka            y = screenHeight / 2 - scaledPageHeight / 2;
1418b0b2e6f588367cf40a4270cca81af7d78f8e382eWinson Chung            finalAlpha = 1.0f;
1419af91de06b99e2d5d41ce79fefa34ce2111e51917Michael Jurka        } else if (shrinkState == ShrinkState.TOP) {
14203c38d561e6976ffc54eda61ed669870bbb8ec207Michael Jurka            y = (screenHeight - getCustomizeDrawerHeight() - scaledPageHeight) / 2;
1421213d96354e7407dba5c9715eb10d04bebd82c395Michael Jurka        }
1422dee0589388ba0f6373912e18bf86243282fb3b9bMichael Jurka
1423f16e571330f030e445c4f7f63f55d093337ffd87Adam Cohen        int duration;
1424f16e571330f030e445c4f7f63f55d093337ffd87Adam Cohen        if (shrinkState == ShrinkState.BOTTOM_HIDDEN || shrinkState == ShrinkState.BOTTOM_VISIBLE) {
1425f16e571330f030e445c4f7f63f55d093337ffd87Adam Cohen            duration = res.getInteger(R.integer.config_allAppsWorkspaceShrinkTime);
1426f16e571330f030e445c4f7f63f55d093337ffd87Adam Cohen        } else {
1427f16e571330f030e445c4f7f63f55d093337ffd87Adam Cohen            duration = res.getInteger(R.integer.config_customizeWorkspaceShrinkTime);
1428f16e571330f030e445c4f7f63f55d093337ffd87Adam Cohen        }
1429f16e571330f030e445c4f7f63f55d093337ffd87Adam Cohen
1430dee0589388ba0f6373912e18bf86243282fb3b9bMichael Jurka        // We animate all the screens to the centered position in workspace
1431dee0589388ba0f6373912e18bf86243282fb3b9bMichael Jurka        // At the same time, the screens become greyed/dimmed
1432dee0589388ba0f6373912e18bf86243282fb3b9bMichael Jurka
1433dee0589388ba0f6373912e18bf86243282fb3b9bMichael Jurka        // newX is initialized to the left-most position of the centered screens
1434742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka        float x = mScroller.getFinalX() + screenWidth / 2 - totalWidth / 2;
1435a985e598f6071f4caca15ba3cb6b2cd3e38b217dAdam Cohen
1436a985e598f6071f4caca15ba3cb6b2cd3e38b217dAdam Cohen        // We are going to scale about the center of the view, so we need to adjust the positions
1437a985e598f6071f4caca15ba3cb6b2cd3e38b217dAdam Cohen        // of the views accordingly
1438742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka        x -= (pageWidth - scaledPageWidth) / 2.0f;
1439742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka        y -= (pageHeight - scaledPageHeight) / 2.0f;
14403c4c20fbe682cb4b3ef94f09afe0af09171583f3Michael Jurka
14413c4c20fbe682cb4b3ef94f09afe0af09171583f3Michael Jurka        if (mAnimator != null) {
14423c4c20fbe682cb4b3ef94f09afe0af09171583f3Michael Jurka            mAnimator.cancel();
14433c4c20fbe682cb4b3ef94f09afe0af09171583f3Michael Jurka        }
1444f16e571330f030e445c4f7f63f55d093337ffd87Adam Cohen
14453c4c20fbe682cb4b3ef94f09afe0af09171583f3Michael Jurka        mAnimator = new AnimatorSet();
1446742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka
1447742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka        final float[] oldXs = new float[getChildCount()];
1448742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka        final float[] oldYs = new float[getChildCount()];
1449742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka        final float[] oldScaleXs = new float[getChildCount()];
1450742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka        final float[] oldScaleYs = new float[getChildCount()];
1451742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka        final float[] oldBackgroundAlphas = new float[getChildCount()];
1452742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka        final float[] oldAlphas = new float[getChildCount()];
1453742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka        final float[] oldRotationYs = new float[getChildCount()];
1454742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka        final float[] newXs = new float[getChildCount()];
1455742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka        final float[] newYs = new float[getChildCount()];
1456742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka        final float[] newScaleXs = new float[getChildCount()];
1457742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka        final float[] newScaleYs = new float[getChildCount()];
1458742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka        final float[] newBackgroundAlphas = new float[getChildCount()];
1459742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka        final float[] newAlphas = new float[getChildCount()];
1460742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka        final float[] newRotationYs = new float[getChildCount()];
1461742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka
1462dee0589388ba0f6373912e18bf86243282fb3b9bMichael Jurka        for (int i = 0; i < screenCount; i++) {
1463f16e571330f030e445c4f7f63f55d093337ffd87Adam Cohen            final CellLayout cl = (CellLayout) getChildAt(i);
1464a985e598f6071f4caca15ba3cb6b2cd3e38b217dAdam Cohen
1465f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen            float rotation = (-i + 2) * WORKSPACE_ROTATION;
1466a985e598f6071f4caca15ba3cb6b2cd3e38b217dAdam Cohen            float rotationScaleX = (float) (1.0f / Math.cos(Math.PI * rotation / 180.0f));
1467a985e598f6071f4caca15ba3cb6b2cd3e38b217dAdam Cohen            float rotationScaleY = getYScaleForScreen(i);
1468a985e598f6071f4caca15ba3cb6b2cd3e38b217dAdam Cohen
1469742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka            oldAlphas[i] = cl.getAlpha();
1470742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka            newAlphas[i] = finalAlpha;
14713e5ad58a6885273a60f8eb77aa9aee965eecdb2cMichael Jurka            if (animated) {
1472742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                oldXs[i] = cl.getX();
1473742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                oldYs[i] = cl.getY();
1474742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                oldScaleXs[i] = cl.getScaleX();
1475742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                oldScaleYs[i] = cl.getScaleY();
1476742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                oldBackgroundAlphas[i] = cl.getBackgroundAlpha();
1477742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                oldRotationYs[i] = cl.getRotationY();
1478742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                newXs[i] = x;
1479742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                newYs[i] = y;
1480742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                newScaleXs[i] = SHRINK_FACTOR * rotationScaleX * extraShrinkFactor;
1481742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                newScaleYs[i] = SHRINK_FACTOR * rotationScaleY * extraShrinkFactor;
1482742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                newBackgroundAlphas[i] = finalAlpha;
1483742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                newRotationYs[i] = rotation;
148479212d81361d1ad8c941c48f8323eb526643ca68Michael Jurka            } else {
1485742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                cl.setX((int)x);
1486742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                cl.setY((int)y);
1487883f55b1d261862b0de1b43af0b17d351761a9c6Michael Jurka                cl.setScaleX(SHRINK_FACTOR * rotationScaleX * extraShrinkFactor);
1488883f55b1d261862b0de1b43af0b17d351761a9c6Michael Jurka                cl.setScaleY(SHRINK_FACTOR * rotationScaleY * extraShrinkFactor);
1489883f55b1d261862b0de1b43af0b17d351761a9c6Michael Jurka                cl.setBackgroundAlpha(finalAlpha);
14903e7c7634531302271270c8cf418abc959d621cbcMichael Jurka                cl.setAlpha(finalAlpha);
1491a985e598f6071f4caca15ba3cb6b2cd3e38b217dAdam Cohen                cl.setRotationY(rotation);
14923e5ad58a6885273a60f8eb77aa9aee965eecdb2cMichael Jurka                mShrinkAnimationListener.onAnimationEnd(null);
149379212d81361d1ad8c941c48f8323eb526643ca68Michael Jurka            }
1494dee0589388ba0f6373912e18bf86243282fb3b9bMichael Jurka            // increment newX for the next screen
1495742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka            x += scaledPageWidth + extraScaledSpacing;
1496dee0589388ba0f6373912e18bf86243282fb3b9bMichael Jurka        }
1497ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka
1498ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        float wallpaperOffset = 0.5f;
1499ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        Display display = mLauncher.getWindowManager().getDefaultDisplay();
1500ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        int wallpaperTravelHeight = (int) (display.getHeight() *
1501ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka                wallpaperTravelToScreenHeightRatio(display.getWidth(), display.getHeight()));
1502ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        float offsetFromCenter = (wallpaperTravelHeight / (float) mWallpaperHeight) / 2f;
1503ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka        boolean isLandscape = display.getWidth() > display.getHeight();
1504ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka
1505ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        switch (shrinkState) {
1506ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka            // animating in
1507ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            case TOP:
1508ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka                // customize
1509ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka                wallpaperOffset = 0.5f + offsetFromCenter;
1510ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka                mWallpaperOffset.setVerticalCatchupConstant(isLandscape ? 0.46f : 0.44f);
1511ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka                break;
1512ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            case MIDDLE:
1513ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            case SPRING_LOADED:
1514ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka                wallpaperOffset = 0.5f;
1515ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka                mWallpaperOffset.setVerticalCatchupConstant(isLandscape ? 0.34f : 0.32f);
1516ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka                break;
1517ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            case BOTTOM_HIDDEN:
1518ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            case BOTTOM_VISIBLE:
1519ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka                // allapps
1520ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka                wallpaperOffset = 0.5f - offsetFromCenter;
1521ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka                mWallpaperOffset.setVerticalCatchupConstant(isLandscape ? 0.34f : 0.32f);
1522ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka                break;
1523ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        }
1524ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka
1525742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka        setLayoutScale(1.0f);
1526ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka        if (animated) {
1527ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka            mWallpaperOffset.setHorizontalCatchupConstant(0.46f);
1528ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka            mWallpaperOffset.setOverrideHorizontalCatchupConstant(true);
1529ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka
1530ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            mSyncWallpaperOffsetWithScroll = false;
1531ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka
1532742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka            ValueAnimator animWithInterpolator =
1533742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                ValueAnimator.ofFloat(0f, 1f).setDuration(duration);
1534742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka            animWithInterpolator.setInterpolator(mZoomOutInterpolator);
1535742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka
1536742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka            final float oldHorizontalWallpaperOffset = getHorizontalWallpaperOffset();
1537742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka            final float oldVerticalWallpaperOffset = getVerticalWallpaperOffset();
1538742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka            final float newHorizontalWallpaperOffset = 0.5f;
1539742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka            final float newVerticalWallpaperOffset = wallpaperOffset;
1540742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka            animWithInterpolator.addUpdateListener(new AnimatorUpdateListener() {
1541742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                public void onAnimationUpdate(ValueAnimator animation) {
1542742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                    final float b = (Float) animation.getAnimatedValue();
1543742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                    final float a = 1f - b;
1544c4e772e4b3f21bde342e475ebc49b5b76b8f74e8Michael Jurka                    if (b == 0f) {
1545c4e772e4b3f21bde342e475ebc49b5b76b8f74e8Michael Jurka                        // an optimization, and required for correct behavior.
1546c4e772e4b3f21bde342e475ebc49b5b76b8f74e8Michael Jurka                        return;
1547c4e772e4b3f21bde342e475ebc49b5b76b8f74e8Michael Jurka                    }
1548c4e772e4b3f21bde342e475ebc49b5b76b8f74e8Michael Jurka                    fastInvalidate();
1549742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                    setHorizontalWallpaperOffset(
1550742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                            a * oldHorizontalWallpaperOffset + b * newHorizontalWallpaperOffset);
1551742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                    setVerticalWallpaperOffset(
1552742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                            a * oldVerticalWallpaperOffset + b * newVerticalWallpaperOffset);
1553742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                    for (int i = 0; i < screenCount; i++) {
1554742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                        final CellLayout cl = (CellLayout) getChildAt(i);
1555742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                        cl.fastInvalidate();
1556742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                        cl.setFastX(a * oldXs[i] + b * newXs[i]);
1557742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                        cl.setFastY(a * oldYs[i] + b * newYs[i]);
1558742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                        cl.setFastScaleX(a * oldScaleXs[i] + b * newScaleXs[i]);
1559742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                        cl.setFastScaleY(a * oldScaleYs[i] + b * newScaleYs[i]);
1560742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                        cl.setFastBackgroundAlpha(
1561742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                                a * oldBackgroundAlphas[i] + b * newBackgroundAlphas[i]);
1562742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                        cl.setFastAlpha(a * oldAlphas[i] + b * newAlphas[i]);
1563742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                        cl.setFastRotationY(a * oldRotationYs[i] + b * newRotationYs[i]);
1564742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                    }
1565742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                }
1566742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka            });
1567742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka            mAnimator.playTogether(animWithInterpolator);
1568bea15195346bab3c52b0156e92f2b71f0811b210Michael Jurka            mAnimator.addListener(mShrinkAnimationListener);
15693c4c20fbe682cb4b3ef94f09afe0af09171583f3Michael Jurka            mAnimator.start();
1570ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka        } else {
1571ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            setVerticalWallpaperOffset(wallpaperOffset);
1572ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            setHorizontalWallpaperOffset(0.5f);
1573ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            updateWallpaperOffsetImmediately();
15743c4c20fbe682cb4b3ef94f09afe0af09171583f3Michael Jurka        }
1575dee0589388ba0f6373912e18bf86243282fb3b9bMichael Jurka        setChildrenDrawnWithCacheEnabled(true);
15768d006d5e144ae33e509ea42e0b9760ef6c5bc884Winson Chung
1577af91de06b99e2d5d41ce79fefa34ce2111e51917Michael Jurka        if (shrinkState == ShrinkState.TOP) {
15788d006d5e144ae33e509ea42e0b9760ef6c5bc884Winson Chung            showBackgroundGradientForCustomizeTray();
15798d006d5e144ae33e509ea42e0b9760ef6c5bc884Winson Chung        } else {
1580760e5375f003accf04f789e90a919ed476d4c335Winson Chung            showBackgroundGradientForAllApps();
15818d006d5e144ae33e509ea42e0b9760ef6c5bc884Winson Chung        }
1582dee0589388ba0f6373912e18bf86243282fb3b9bMichael Jurka    }
1583dee0589388ba0f6373912e18bf86243282fb3b9bMichael Jurka
158461033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen    /*
158561033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen     * This interpolator emulates the rate at which the perceived scale of an object changes
158661033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen     * as its distance from a camera increases. When this interpolator is applied to a scale
158761033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen     * animation on a view, it evokes the sense that the object is shrinking due to moving away
158861033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen     * from the camera.
158961033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen     */
159061033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen    static class ZInterpolator implements TimeInterpolator {
159161033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen        private float focalLength;
159261033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen
159361033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen        public ZInterpolator(float foc) {
159461033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen            focalLength = foc;
159561033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen        }
159661033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen
1597eed565d5126cb40b2a7ecdf5f6e8ac7a7464007bAdam Cohen        public float getInterpolation(float input) {
1598eed565d5126cb40b2a7ecdf5f6e8ac7a7464007bAdam Cohen            return (1.0f - focalLength / (focalLength + input)) /
159961033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen                (1.0f - focalLength / (focalLength + 1.0f));
1600cbbaf9862aa160c5e397cb49b554de20981a35feAdam Cohen        }
1601cbbaf9862aa160c5e397cb49b554de20981a35feAdam Cohen    }
1602cbbaf9862aa160c5e397cb49b554de20981a35feAdam Cohen
160361033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen    /*
160461033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen     * The exact reverse of ZInterpolator.
160561033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen     */
160661033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen    static class InverseZInterpolator implements TimeInterpolator {
160761033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen        private ZInterpolator zInterpolator;
160861033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen        public InverseZInterpolator(float foc) {
160961033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen            zInterpolator = new ZInterpolator(foc);
161061033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen        }
1611cbbaf9862aa160c5e397cb49b554de20981a35feAdam Cohen        public float getInterpolation(float input) {
161261033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen            return 1 - zInterpolator.getInterpolation(1 - input);
1613cbbaf9862aa160c5e397cb49b554de20981a35feAdam Cohen        }
1614cbbaf9862aa160c5e397cb49b554de20981a35feAdam Cohen    }
1615cbbaf9862aa160c5e397cb49b554de20981a35feAdam Cohen
161661033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen    /*
161761033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen     * ZInterpolator compounded with an ease-out.
161861033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen     */
161961033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen    static class ZoomOutInterpolator implements TimeInterpolator {
162061033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen        private final ZInterpolator zInterpolator = new ZInterpolator(0.2f);
1621ea57348cc8f4647f6bc35a42cd45662ddb828b92Michael Jurka        private final DecelerateInterpolator decelerate = new DecelerateInterpolator(1.8f);
162261033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen
162361033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen        public float getInterpolation(float input) {
162461033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen            return decelerate.getInterpolation(zInterpolator.getInterpolation(input));
162561033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen        }
162661033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen    }
162761033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen
162861033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen    /*
162961033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen     * InvereZInterpolator compounded with an ease-out.
163061033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen     */
163161033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen    static class ZoomInInterpolator implements TimeInterpolator {
163261033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen        private final InverseZInterpolator inverseZInterpolator = new InverseZInterpolator(0.35f);
163361033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen        private final DecelerateInterpolator decelerate = new DecelerateInterpolator(3.0f);
163461033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen
163561033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen        public float getInterpolation(float input) {
163661033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen            return decelerate.getInterpolation(inverseZInterpolator.getInterpolation(input));
163761033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen        }
163861033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen    }
163961033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen
164061033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen    private final ZoomOutInterpolator mZoomOutInterpolator = new ZoomOutInterpolator();
164161033d3d86fcae1f654f3fbfc9979d131e265d76Adam Cohen    private final ZoomInInterpolator mZoomInInterpolator = new ZoomInInterpolator();
16423e7c7634531302271270c8cf418abc959d621cbcMichael Jurka
1643af91de06b99e2d5d41ce79fefa34ce2111e51917Michael Jurka    private void updateWhichPagesAcceptDrops(ShrinkState state) {
16443e7c7634531302271270c8cf418abc959d621cbcMichael Jurka        updateWhichPagesAcceptDropsHelper(state, false, 1, 1);
16453e7c7634531302271270c8cf418abc959d621cbcMichael Jurka    }
16463e7c7634531302271270c8cf418abc959d621cbcMichael Jurka
1647af91de06b99e2d5d41ce79fefa34ce2111e51917Michael Jurka    private void updateWhichPagesAcceptDropsDuringDrag(ShrinkState state, int spanX, int spanY) {
16483e7c7634531302271270c8cf418abc959d621cbcMichael Jurka        updateWhichPagesAcceptDropsHelper(state, true, spanX, spanY);
16493e7c7634531302271270c8cf418abc959d621cbcMichael Jurka    }
16503e7c7634531302271270c8cf418abc959d621cbcMichael Jurka
16513e7c7634531302271270c8cf418abc959d621cbcMichael Jurka    private void updateWhichPagesAcceptDropsHelper(
1652af91de06b99e2d5d41ce79fefa34ce2111e51917Michael Jurka            ShrinkState state, boolean isDragHappening, int spanX, int spanY) {
16533e7c7634531302271270c8cf418abc959d621cbcMichael Jurka        final int screenCount = getChildCount();
16543e7c7634531302271270c8cf418abc959d621cbcMichael Jurka        for (int i = 0; i < screenCount; i++) {
16553e7c7634531302271270c8cf418abc959d621cbcMichael Jurka            CellLayout cl = (CellLayout) getChildAt(i);
165633945b21544bc98381df17726a3537c292d8c985Michael Jurka            cl.setIsDragOccuring(isDragHappening);
16573e7c7634531302271270c8cf418abc959d621cbcMichael Jurka            switch (state) {
1658af91de06b99e2d5d41ce79fefa34ce2111e51917Michael Jurka                case TOP:
165933945b21544bc98381df17726a3537c292d8c985Michael Jurka                    cl.setIsDefaultDropTarget(i == mCurrentPage);
1660af91de06b99e2d5d41ce79fefa34ce2111e51917Michael Jurka                case BOTTOM_HIDDEN:
1661af91de06b99e2d5d41ce79fefa34ce2111e51917Michael Jurka                case BOTTOM_VISIBLE:
16627bccb42f88cbbaf8cf180a876e8c5d5e306ce62aPatrick Dubroy                case SPRING_LOADED:
16633e5ad58a6885273a60f8eb77aa9aee965eecdb2cMichael Jurka                    if (state != ShrinkState.TOP) {
16643e5ad58a6885273a60f8eb77aa9aee965eecdb2cMichael Jurka                        cl.setIsDefaultDropTarget(false);
16653e5ad58a6885273a60f8eb77aa9aee965eecdb2cMichael Jurka                    }
16663e7c7634531302271270c8cf418abc959d621cbcMichael Jurka                    if (!isDragHappening) {
16673e7c7634531302271270c8cf418abc959d621cbcMichael Jurka                        // even if a drag isn't happening, we don't want to show a screen as
16683e7c7634531302271270c8cf418abc959d621cbcMichael Jurka                        // accepting drops if it doesn't have at least one free cell
16693e7c7634531302271270c8cf418abc959d621cbcMichael Jurka                        spanX = 1;
16703e7c7634531302271270c8cf418abc959d621cbcMichael Jurka                        spanY = 1;
16713e7c7634531302271270c8cf418abc959d621cbcMichael Jurka                    }
16723e7c7634531302271270c8cf418abc959d621cbcMichael Jurka                    // the page accepts drops if we can find at least one empty spot
16733e7c7634531302271270c8cf418abc959d621cbcMichael Jurka                    cl.setAcceptsDrops(cl.findCellForSpan(null, spanX, spanY));
16743e7c7634531302271270c8cf418abc959d621cbcMichael Jurka                    break;
16753e7c7634531302271270c8cf418abc959d621cbcMichael Jurka                default:
16767bccb42f88cbbaf8cf180a876e8c5d5e306ce62aPatrick Dubroy                     throw new RuntimeException("Unhandled ShrinkState " + state);
16773e7c7634531302271270c8cf418abc959d621cbcMichael Jurka            }
16783e7c7634531302271270c8cf418abc959d621cbcMichael Jurka        }
16793e7c7634531302271270c8cf418abc959d621cbcMichael Jurka    }
16803e7c7634531302271270c8cf418abc959d621cbcMichael Jurka
16813e7c7634531302271270c8cf418abc959d621cbcMichael Jurka    /*
16823e7c7634531302271270c8cf418abc959d621cbcMichael Jurka     *
16833e7c7634531302271270c8cf418abc959d621cbcMichael Jurka     * We call these methods (onDragStartedWithItemSpans/onDragStartedWithItemMinSize) whenever we
16843e7c7634531302271270c8cf418abc959d621cbcMichael Jurka     * start a drag in Launcher, regardless of whether the drag has ever entered the Workspace
16853e7c7634531302271270c8cf418abc959d621cbcMichael Jurka     *
16863e7c7634531302271270c8cf418abc959d621cbcMichael Jurka     * These methods mark the appropriate pages as accepting drops (which alters their visual
16876b879f0a5885274a85333531e091283405d490ccAdam Lesinski     * appearance).
16883e7c7634531302271270c8cf418abc959d621cbcMichael Jurka     *
16893e7c7634531302271270c8cf418abc959d621cbcMichael Jurka     */
1690d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka    public void onDragStartedWithItemSpans(int spanX, int spanY, Bitmap b) {
1691d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka        mIsDragInProcess = true;
1692d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka
1693d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka        final Canvas canvas = new Canvas();
16943e7c7634531302271270c8cf418abc959d621cbcMichael Jurka
1695d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka        // We need to add extra padding to the bitmap to make room for the glow effect
169638b4f7c5eab773ad36048b5ab8713750dcaaf748Michael Jurka        final int bitmapPadding = HolographicOutlineHelper.MAX_OUTER_BLUR_RADIUS;
1697d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka
1698f12c75cb48f87955600c56ccbe0aac84b0c11b28Michael Jurka        CellLayout cl = (CellLayout) getChildAt(0);
1699f12c75cb48f87955600c56ccbe0aac84b0c11b28Michael Jurka        int[] desiredSize = cl.cellSpansToSize(spanX, spanY);
1700d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka        // The outline is used to visualize where the item will land if dropped
1701f12c75cb48f87955600c56ccbe0aac84b0c11b28Michael Jurka        mDragOutline = createDragOutline(b, canvas, bitmapPadding, desiredSize[0], desiredSize[1]);
1702d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka
1703d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka        updateWhichPagesAcceptDropsDuringDrag(mShrinkState, spanX, spanY);
17043e7c7634531302271270c8cf418abc959d621cbcMichael Jurka    }
17053e7c7634531302271270c8cf418abc959d621cbcMichael Jurka
17063e7c7634531302271270c8cf418abc959d621cbcMichael Jurka    // we call this method whenever a drag and drop in Launcher finishes, even if Workspace was
17073e7c7634531302271270c8cf418abc959d621cbcMichael Jurka    // never dragged over
17087bccb42f88cbbaf8cf180a876e8c5d5e306ce62aPatrick Dubroy    public void onDragStopped(boolean success) {
17090bb8563b1381d92b0d7dbb5b0f814ad656c2f9bdMichael Jurka        mLastDragView = null;
17107bccb42f88cbbaf8cf180a876e8c5d5e306ce62aPatrick Dubroy        // In the success case, DragController has already called onDragExit()
17117bccb42f88cbbaf8cf180a876e8c5d5e306ce62aPatrick Dubroy        if (!success) {
17127bccb42f88cbbaf8cf180a876e8c5d5e306ce62aPatrick Dubroy            doDragExit();
17137bccb42f88cbbaf8cf180a876e8c5d5e306ce62aPatrick Dubroy        }
1714d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka        mIsDragInProcess = false;
1715af91de06b99e2d5d41ce79fefa34ce2111e51917Michael Jurka        updateWhichPagesAcceptDrops(mShrinkState);
17163e7c7634531302271270c8cf418abc959d621cbcMichael Jurka    }
17173e7c7634531302271270c8cf418abc959d621cbcMichael Jurka
17189c6de3d7c3e7d40e1e443b6fd69e3077ab9e9673Michael Jurka    // We call this when we trigger an unshrink by clicking on the CellLayout cl
17199c6de3d7c3e7d40e1e443b6fd69e3077ab9e9673Michael Jurka    public void unshrink(CellLayout clThatWasClicked) {
1720d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka        unshrink(clThatWasClicked, false);
1721d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka    }
1722d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka
1723d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka    public void unshrink(CellLayout clThatWasClicked, boolean springLoaded) {
17249c6de3d7c3e7d40e1e443b6fd69e3077ab9e9673Michael Jurka        int newCurrentPage = indexOfChild(clThatWasClicked);
1725b0f28bd9a52fa4e343c8299d1c3e225d8e01c1e9Michael Jurka        if (mIsSmall) {
1726d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka            if (springLoaded) {
1727d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka                setLayoutScale(SPRING_LOADED_DRAG_SHRINK_FACTOR);
1728d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka            }
17298c920dd3683d752aa4c43e964831ce53f9b72887Michael Jurka            scrollToNewPageWithoutMovingPages(newCurrentPage);
1730d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka            unshrink(true, springLoaded);
1731d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka        }
1732d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka    }
1733d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka
1734d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka
1735d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka    public void enterSpringLoadedDragMode(CellLayout clThatWasClicked) {
1736d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka        mShrinkState = ShrinkState.SPRING_LOADED;
1737d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka        unshrink(clThatWasClicked, true);
1738d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka        mDragTargetLayout.onDragEnter();
1739d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka    }
1740d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka
1741d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka    public void exitSpringLoadedDragMode(ShrinkState shrinkState) {
1742d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka        shrink(shrinkState);
1743d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka        if (mDragTargetLayout != null) {
1744d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka            mDragTargetLayout.onDragExit();
1745b0f28bd9a52fa4e343c8299d1c3e225d8e01c1e9Michael Jurka        }
1746dee0589388ba0f6373912e18bf86243282fb3b9bMichael Jurka    }
1747dee0589388ba0f6373912e18bf86243282fb3b9bMichael Jurka
17484cb3724a2c1e5f278e1531d643accc40fcd8e219Michael Jurka    void unshrink(boolean animated) {
1749d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka        unshrink(animated, false);
1750d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka    }
1751d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka
1752d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka    void unshrink(boolean animated, boolean springLoaded) {
1753b7e0e88412871f6582420e3eeb1552598ba8a4c1Michael Jurka        mWaitingToShrink = false;
1754b0f28bd9a52fa4e343c8299d1c3e225d8e01c1e9Michael Jurka        if (mIsSmall) {
1755d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka            float finalScaleFactor = 1.0f;
1756d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka            float finalBackgroundAlpha = 0.0f;
1757d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka            if (springLoaded) {
1758d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka                finalScaleFactor = SPRING_LOADED_DRAG_SHRINK_FACTOR;
1759d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka                finalBackgroundAlpha = 1.0f;
1760d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka            } else {
1761d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka                mIsSmall = false;
1762d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka            }
17633c4c20fbe682cb4b3ef94f09afe0af09171583f3Michael Jurka            if (mAnimator != null) {
17643c4c20fbe682cb4b3ef94f09afe0af09171583f3Michael Jurka                mAnimator.cancel();
17653c4c20fbe682cb4b3ef94f09afe0af09171583f3Michael Jurka            }
17666b879f0a5885274a85333531e091283405d490ccAdam Lesinski
17673c4c20fbe682cb4b3ef94f09afe0af09171583f3Michael Jurka            mAnimator = new AnimatorSet();
1768b0f28bd9a52fa4e343c8299d1c3e225d8e01c1e9Michael Jurka            final int screenCount = getChildCount();
17694cb3724a2c1e5f278e1531d643accc40fcd8e219Michael Jurka
17704cb3724a2c1e5f278e1531d643accc40fcd8e219Michael Jurka            final int duration = getResources().getInteger(R.integer.config_workspaceUnshrinkTime);
1771ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka
1772742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka            final float[] oldTranslationXs = new float[getChildCount()];
1773742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka            final float[] oldTranslationYs = new float[getChildCount()];
1774742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka            final float[] oldScaleXs = new float[getChildCount()];
1775742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka            final float[] oldScaleYs = new float[getChildCount()];
1776742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka            final float[] oldBackgroundAlphas = new float[getChildCount()];
1777742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka            final float[] oldBackgroundAlphaMultipliers = new float[getChildCount()];
1778742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka            final float[] oldAlphas = new float[getChildCount()];
1779742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka            final float[] oldRotationYs = new float[getChildCount()];
1780742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka            final float[] newTranslationXs = new float[getChildCount()];
1781742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka            final float[] newTranslationYs = new float[getChildCount()];
1782742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka            final float[] newScaleXs = new float[getChildCount()];
1783742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka            final float[] newScaleYs = new float[getChildCount()];
1784742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka            final float[] newBackgroundAlphas = new float[getChildCount()];
1785742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka            final float[] newBackgroundAlphaMultipliers = new float[getChildCount()];
1786742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka            final float[] newAlphas = new float[getChildCount()];
1787742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka            final float[] newRotationYs = new float[getChildCount()];
1788742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka
1789b0f28bd9a52fa4e343c8299d1c3e225d8e01c1e9Michael Jurka            for (int i = 0; i < screenCount; i++) {
17907247f6315baf16eacb3286f21bd80321385c1defPatrick Dubroy                final CellLayout cl = (CellLayout)getChildAt(i);
17915f1c509d5ad1954a7e38e77db4d5f27c7345fd39Michael Jurka                float finalAlphaValue = (i == mCurrentPage) ? 1.0f : 0.0f;
1792ae222ab933a8d035394618e3782dd529cf328f08Winson Chung                float finalAlphaMultiplierValue =
1793ae222ab933a8d035394618e3782dd529cf328f08Winson Chung                        ((i == mCurrentPage) && (mShrinkState != ShrinkState.SPRING_LOADED)) ?
1794ae222ab933a8d035394618e3782dd529cf328f08Winson Chung                        0.0f : 1.0f;
1795f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen                float rotation = 0.0f;
1796f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen
1797f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen                if (i < mCurrentPage) {
1798f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen                    rotation = WORKSPACE_ROTATION;
1799f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen                } else if (i > mCurrentPage) {
1800f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen                    rotation = -WORKSPACE_ROTATION;
1801f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen                }
1802f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen
18036b879f0a5885274a85333531e091283405d490ccAdam Lesinski                float translation = getOffsetXForRotation(rotation, cl.getWidth(), cl.getHeight());
1804cbbaf9862aa160c5e397cb49b554de20981a35feAdam Cohen
1805742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                oldAlphas[i] = cl.getAlpha();
1806742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                newAlphas[i] = finalAlphaValue;
18073e5ad58a6885273a60f8eb77aa9aee965eecdb2cMichael Jurka                if (animated) {
1808742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                    oldTranslationXs[i] = cl.getTranslationX();
1809742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                    oldTranslationYs[i] = cl.getTranslationY();
1810742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                    oldScaleXs[i] = cl.getScaleX();
1811742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                    oldScaleYs[i] = cl.getScaleY();
1812742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                    oldBackgroundAlphas[i] = cl.getBackgroundAlpha();
1813742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                    oldBackgroundAlphaMultipliers[i] = cl.getBackgroundAlphaMultiplier();
1814742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                    oldRotationYs[i] = cl.getRotationY();
1815742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka
1816742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                    newTranslationXs[i] = translation;
1817742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                    newTranslationYs[i] = 0f;
1818742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                    newScaleXs[i] = finalScaleFactor;
1819742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                    newScaleYs[i] = finalScaleFactor;
1820742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                    newBackgroundAlphas[i] = finalBackgroundAlpha;
1821742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                    newBackgroundAlphaMultipliers[i] = finalAlphaMultiplierValue;
1822742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                    newRotationYs[i] = rotation;
18234cb3724a2c1e5f278e1531d643accc40fcd8e219Michael Jurka                } else {
18246b879f0a5885274a85333531e091283405d490ccAdam Lesinski                    cl.setTranslationX(translation);
18254cb3724a2c1e5f278e1531d643accc40fcd8e219Michael Jurka                    cl.setTranslationY(0.0f);
1826d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka                    cl.setScaleX(finalScaleFactor);
1827d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka                    cl.setScaleY(finalScaleFactor);
18285f1c509d5ad1954a7e38e77db4d5f27c7345fd39Michael Jurka                    cl.setBackgroundAlpha(0.0f);
1829ae222ab933a8d035394618e3782dd529cf328f08Winson Chung                    cl.setBackgroundAlphaMultiplier(finalAlphaMultiplierValue);
1830f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen                    cl.setAlpha(finalAlphaValue);
1831f34bab59fc0260f926aec44d044883dce1b4191fAdam Cohen                    cl.setRotationY(rotation);
18323e5ad58a6885273a60f8eb77aa9aee965eecdb2cMichael Jurka                    mUnshrinkAnimationListener.onAnimationEnd(null);
18334cb3724a2c1e5f278e1531d643accc40fcd8e219Michael Jurka                }
1834b0f28bd9a52fa4e343c8299d1c3e225d8e01c1e9Michael Jurka            }
1835ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka            Display display = mLauncher.getWindowManager().getDefaultDisplay();
1836ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka            boolean isLandscape = display.getWidth() > display.getHeight();
1837ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka            switch (mShrinkState) {
1838ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka                // animating out
1839ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka                case TOP:
1840ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka                    // customize
1841ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka                    if (animated) {
1842ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka                        mWallpaperOffset.setHorizontalCatchupConstant(isLandscape ? 0.65f : 0.62f);
1843ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka                        mWallpaperOffset.setVerticalCatchupConstant(isLandscape ? 0.65f : 0.62f);
1844ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka                        mWallpaperOffset.setOverrideHorizontalCatchupConstant(true);
1845ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka                    }
1846ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka                    break;
1847ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka                case MIDDLE:
1848ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka                case SPRING_LOADED:
1849ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka                    if (animated) {
1850ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka                        mWallpaperOffset.setHorizontalCatchupConstant(isLandscape ? 0.49f : 0.46f);
1851ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka                        mWallpaperOffset.setVerticalCatchupConstant(isLandscape ? 0.49f : 0.46f);
1852ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka                        mWallpaperOffset.setOverrideHorizontalCatchupConstant(true);
1853ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka                    }
1854ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka                    break;
1855ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka                case BOTTOM_HIDDEN:
1856ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka                case BOTTOM_VISIBLE:
1857ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka                    // all apps
1858ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka                    if (animated) {
1859ea57348cc8f4647f6bc35a42cd45662ddb828b92Michael Jurka                        mWallpaperOffset.setHorizontalCatchupConstant(isLandscape ? 0.65f : 0.65f);
1860ea57348cc8f4647f6bc35a42cd45662ddb828b92Michael Jurka                        mWallpaperOffset.setVerticalCatchupConstant(isLandscape ? 0.65f : 0.65f);
1861ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka                        mWallpaperOffset.setOverrideHorizontalCatchupConstant(true);
1862ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka                    }
1863ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka                    break;
1864ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka            }
1865ab1983f46ce0ee0c94ea1170d21a67eb4e3c7967Michael Jurka            if (animated) {
1866742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                ValueAnimator animWithInterpolator =
1867742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                    ValueAnimator.ofFloat(0f, 1f).setDuration(duration);
1868742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                animWithInterpolator.setInterpolator(mZoomInInterpolator);
1869742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka
1870742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                final float oldHorizontalWallpaperOffset = getHorizontalWallpaperOffset();
1871742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                final float oldVerticalWallpaperOffset = getVerticalWallpaperOffset();
1872742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                final float newHorizontalWallpaperOffset = wallpaperOffsetForCurrentScroll();
1873742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                final float newVerticalWallpaperOffset = 0.5f;
1874742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                animWithInterpolator.addUpdateListener(new AnimatorUpdateListener() {
1875742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                    public void onAnimationUpdate(ValueAnimator animation) {
1876742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                        final float b = (Float) animation.getAnimatedValue();
1877742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                        final float a = 1f - b;
1878c4e772e4b3f21bde342e475ebc49b5b76b8f74e8Michael Jurka                        if (b == 0f) {
1879c4e772e4b3f21bde342e475ebc49b5b76b8f74e8Michael Jurka                            // an optimization, but not required
1880c4e772e4b3f21bde342e475ebc49b5b76b8f74e8Michael Jurka                            return;
1881c4e772e4b3f21bde342e475ebc49b5b76b8f74e8Michael Jurka                        }
1882c4e772e4b3f21bde342e475ebc49b5b76b8f74e8Michael Jurka                        fastInvalidate();
1883742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                        setHorizontalWallpaperOffset(
1884742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                                a * oldHorizontalWallpaperOffset + b * newHorizontalWallpaperOffset);
1885742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                        setVerticalWallpaperOffset(
1886742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                                a * oldVerticalWallpaperOffset + b * newVerticalWallpaperOffset);
1887742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                        for (int i = 0; i < screenCount; i++) {
1888742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                            final CellLayout cl = (CellLayout) getChildAt(i);
1889742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                            cl.fastInvalidate();
1890742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                            cl.setFastTranslationX(
1891742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                                    a * oldTranslationXs[i] + b * newTranslationXs[i]);
1892742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                            cl.setFastTranslationY(
1893742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                                    a * oldTranslationYs[i] + b * newTranslationYs[i]);
1894742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                            cl.setFastScaleX(a * oldScaleXs[i] + b * newScaleXs[i]);
1895742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                            cl.setFastScaleY(a * oldScaleYs[i] + b * newScaleYs[i]);
1896742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                            cl.setFastBackgroundAlpha(
1897742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                                    a * oldBackgroundAlphas[i] + b * newBackgroundAlphas[i]);
1898742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                            cl.setBackgroundAlphaMultiplier(a * oldBackgroundAlphaMultipliers[i] +
1899742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                                    b * newBackgroundAlphaMultipliers[i]);
1900742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                            cl.setFastAlpha(a * oldAlphas[i] + b * newAlphas[i]);
1901742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                        }
1902742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                    }
1903742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                });
1904742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka
1905742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                ValueAnimator rotationAnim =
1906742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                    ValueAnimator.ofFloat(0f, 1f).setDuration(duration);
1907742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                rotationAnim.setInterpolator(new DecelerateInterpolator(2.0f));
1908742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                rotationAnim.addUpdateListener(new AnimatorUpdateListener() {
1909742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                    public void onAnimationUpdate(ValueAnimator animation) {
1910742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                        // don't invalidate workspace because we did it above
1911742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                        final float b = (Float) animation.getAnimatedValue();
1912742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                        final float a = 1f - b;
1913c4e772e4b3f21bde342e475ebc49b5b76b8f74e8Michael Jurka                        if (b == 0f) {
1914c4e772e4b3f21bde342e475ebc49b5b76b8f74e8Michael Jurka                            // an optimization, but not required
1915c4e772e4b3f21bde342e475ebc49b5b76b8f74e8Michael Jurka                            return;
1916c4e772e4b3f21bde342e475ebc49b5b76b8f74e8Michael Jurka                        }
1917742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                        for (int i = 0; i < screenCount; i++) {
1918742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                            final CellLayout cl = (CellLayout) getChildAt(i);
1919742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                            cl.setFastRotationY(a * oldRotationYs[i] + b * newRotationYs[i]);
1920742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                        }
1921742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                    }
1922742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                });
19236b879f0a5885274a85333531e091283405d490ccAdam Lesinski
1924742574b15b2b5298a2328443176f2890fb8ebe98Michael Jurka                mAnimator.playTogether(animWithInterpolator, rotationAnim);
1925c86756c20196e5c907df01fe0fc9193ffb934082Michael Jurka                // If we call this when we're not animated, onAnimationEnd is never called on
1926c86756c20196e5c907df01fe0fc9193ffb934082Michael Jurka                // the listener; make sure we only use the listener when we're actually animating
19273c4c20fbe682cb4b3ef94f09afe0af09171583f3Michael Jurka                mAnimator.addListener(mUnshrinkAnimationListener);
19283c4c20fbe682cb4b3ef94f09afe0af09171583f3Michael Jurka                mAnimator.start();
1929ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka            } else {
1930ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka                setHorizontalWallpaperOffset(wallpaperOffsetForCurrentScroll());
1931ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka                setVerticalWallpaperOffset(0.5f);
1932ca5b836e16d320f17057cd1a40a93c382e72501aMichael Jurka                updateWallpaperOffsetImmediately();
1933c86756c20196e5c907df01fe0fc9193ffb934082Michael Jurka            }
1934dee0589388ba0f6373912e18bf86243282fb3b9bMichael Jurka        }
19358d006d5e144ae33e509ea42e0b9760ef6c5bc884Winson Chung
1936a58f8bb1947af39d4d18d849b3e4d6bd0d3954d7Winson Chung        if (!springLoaded) {
1937a58f8bb1947af39d4d18d849b3e4d6bd0d3954d7Winson Chung            hideBackgroundGradient();
1938a58f8bb1947af39d4d18d849b3e4d6bd0d3954d7Winson Chung        }
1939dee0589388ba0f6373912e18bf86243282fb3b9bMichael Jurka    }
1940dee0589388ba0f6373912e18bf86243282fb3b9bMichael Jurka
19414be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato    /**
19424be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato     * Draw the View v into the given Canvas.
19434be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato     *
19444be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato     * @param v the view to draw
19454be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato     * @param destCanvas the canvas to draw on
19464be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato     * @param padding the horizontal and vertical padding to use when drawing
19474be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato     */
19484be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato    private void drawDragView(View v, Canvas destCanvas, int padding) {
19494be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato        final Rect clipRect = mTempRect;
19504be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato        v.getDrawingRect(clipRect);
19514be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato
19524be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato        // For a TextView, adjust the clip rect so that we don't include the text label
1953656d11c882296d732e6bdab30ec26f84b99eba19Winson Chung        if (v instanceof BubbleTextView) {
1954656d11c882296d732e6bdab30ec26f84b99eba19Winson Chung            final BubbleTextView tv = (BubbleTextView) v;
1955656d11c882296d732e6bdab30ec26f84b99eba19Winson Chung            clipRect.bottom = tv.getExtendedPaddingTop() - (int) BubbleTextView.PADDING_V +
1956656d11c882296d732e6bdab30ec26f84b99eba19Winson Chung                    tv.getLayout().getLineTop(0);
1957656d11c882296d732e6bdab30ec26f84b99eba19Winson Chung        } else if (v instanceof TextView) {
1958bbc60d8e79416e37cbede55c159bf6aaa6c171d5Winson Chung            final TextView tv = (TextView) v;
1959656d11c882296d732e6bdab30ec26f84b99eba19Winson Chung            clipRect.bottom = tv.getExtendedPaddingTop() - tv.getCompoundDrawablePadding() +
1960656d11c882296d732e6bdab30ec26f84b99eba19Winson Chung                    tv.getLayout().getLineTop(0);
19614be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato        }
19624be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato
19634be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato        // Draw the View into the bitmap.
19644be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato        // The translate of scrollX and scrollY is necessary when drawing TextViews, because
19654be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato        // they set scrollX and scrollY to large values to achieve centered text
19664be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato
19674be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato        destCanvas.save();
19684be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato        destCanvas.translate(-v.getScrollX() + padding / 2, -v.getScrollY() + padding / 2);
19694be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato        destCanvas.clipRect(clipRect, Op.REPLACE);
19704be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato        v.draw(destCanvas);
19714be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato        destCanvas.restore();
19724be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato    }
19734be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato
19744be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato    /**
19754be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato     * Returns a new bitmap to be used as the object outline, e.g. to visualize the drop location.
19764be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato     * Responsibility for the bitmap is transferred to the caller.
19774be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato     */
19784be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato    private Bitmap createDragOutline(View v, Canvas canvas, int padding) {
19794be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato        final int outlineColor = getResources().getColor(R.color.drag_outline_color);
19804be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato        final Bitmap b = Bitmap.createBitmap(
19814be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato                v.getWidth() + padding, v.getHeight() + padding, Bitmap.Config.ARGB_8888);
19824be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato
19834be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato        canvas.setBitmap(b);
19844be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato        drawDragView(v, canvas, padding);
19855bb50bdb13f5fc22f5febd9480e78222b26c6fe7Adam Cohen        mOutlineHelper.applyMediumExpensiveOutlineWithBlur(b, canvas, outlineColor, outlineColor);
19864be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato        return b;
19874be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato    }
19884be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato
19894be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato    /**
1990d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka     * Returns a new bitmap to be used as the object outline, e.g. to visualize the drop location.
1991d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka     * Responsibility for the bitmap is transferred to the caller.
1992d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka     */
1993f12c75cb48f87955600c56ccbe0aac84b0c11b28Michael Jurka    private Bitmap createDragOutline(Bitmap orig, Canvas canvas, int padding, int w, int h) {
1994d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka        final int outlineColor = getResources().getColor(R.color.drag_outline_color);
1995f12c75cb48f87955600c56ccbe0aac84b0c11b28Michael Jurka        final Bitmap b = Bitmap.createBitmap(w, h, Bitmap.Config.ARGB_8888);
1996d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka        canvas.setBitmap(b);
1997f12c75cb48f87955600c56ccbe0aac84b0c11b28Michael Jurka
1998f12c75cb48f87955600c56ccbe0aac84b0c11b28Michael Jurka        Rect src = new Rect(0, 0, orig.getWidth(), orig.getHeight());
1999f12c75cb48f87955600c56ccbe0aac84b0c11b28Michael Jurka        float scaleFactor = Math.min((w - padding) / (float) orig.getWidth(),
2000f12c75cb48f87955600c56ccbe0aac84b0c11b28Michael Jurka                (h - padding) / (float) orig.getHeight());
2001f12c75cb48f87955600c56ccbe0aac84b0c11b28Michael Jurka        int scaledWidth = (int) (scaleFactor * orig.getWidth());
2002f12c75cb48f87955600c56ccbe0aac84b0c11b28Michael Jurka        int scaledHeight = (int) (scaleFactor * orig.getHeight());
2003f12c75cb48f87955600c56ccbe0aac84b0c11b28Michael Jurka        Rect dst = new Rect(0, 0, scaledWidth, scaledHeight);
2004f12c75cb48f87955600c56ccbe0aac84b0c11b28Michael Jurka
2005f12c75cb48f87955600c56ccbe0aac84b0c11b28Michael Jurka        // center the image
2006f12c75cb48f87955600c56ccbe0aac84b0c11b28Michael Jurka        dst.offset((w - scaledWidth) / 2, (h - scaledHeight) / 2);
2007f12c75cb48f87955600c56ccbe0aac84b0c11b28Michael Jurka
2008f12c75cb48f87955600c56ccbe0aac84b0c11b28Michael Jurka        Paint p = new Paint();
2009f12c75cb48f87955600c56ccbe0aac84b0c11b28Michael Jurka        p.setFilterBitmap(true);
2010f12c75cb48f87955600c56ccbe0aac84b0c11b28Michael Jurka        canvas.drawBitmap(orig, src, dst, p);
2011d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka        mOutlineHelper.applyMediumExpensiveOutlineWithBlur(b, canvas, outlineColor, outlineColor);
2012d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka
2013d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka        return b;
2014d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka    }
2015d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka
2016d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka    /**
2017a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung     * Creates a drag outline to represent a drop (that we don't have the actual information for
2018a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung     * yet).  May be changed in the future to alter the drop outline slightly depending on the
2019a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung     * clip description mime data.
2020a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung     */
2021a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung    private Bitmap createExternalDragOutline(Canvas canvas, int padding) {
2022a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung        Resources r = getResources();
2023a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung        final int outlineColor = r.getColor(R.color.drag_outline_color);
2024a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung        final int iconWidth = r.getDimensionPixelSize(R.dimen.workspace_cell_width);
2025a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung        final int iconHeight = r.getDimensionPixelSize(R.dimen.workspace_cell_height);
2026a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung        final int rectRadius = r.getDimensionPixelSize(R.dimen.external_drop_icon_rect_radius);
2027a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung        final int inset = (int) (Math.min(iconWidth, iconHeight) * 0.2f);
2028a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung        final Bitmap b = Bitmap.createBitmap(
2029a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung                iconWidth + padding, iconHeight + padding, Bitmap.Config.ARGB_8888);
2030a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung
2031a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung        canvas.setBitmap(b);
2032a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung        canvas.drawRoundRect(new RectF(inset, inset, iconWidth - inset, iconHeight - inset),
2033a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung                rectRadius, rectRadius, mExternalDragOutlinePaint);
20345bb50bdb13f5fc22f5febd9480e78222b26c6fe7Adam Cohen        mOutlineHelper.applyMediumExpensiveOutlineWithBlur(b, canvas, outlineColor, outlineColor);
2035a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung        return b;
2036a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung    }
2037a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung
2038a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung    /**
20394be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato     * Returns a new bitmap to show when the given View is being dragged around.
20404be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato     * Responsibility for the bitmap is transferred to the caller.
20414be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato     */
20424be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato    private Bitmap createDragBitmap(View v, Canvas canvas, int padding) {
20434be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato        final int outlineColor = getResources().getColor(R.color.drag_outline_color);
20444be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato        final Bitmap b = Bitmap.createBitmap(
20454be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato                mDragOutline.getWidth(), mDragOutline.getHeight(), Bitmap.Config.ARGB_8888);
20464be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato
20474be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato        canvas.setBitmap(b);
20484be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato        canvas.drawBitmap(mDragOutline, 0, 0, null);
20494be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato        drawDragView(v, canvas, padding);
20508e58e916061cbe2623697efac0924f2aa3753a92Patrick Dubroy        mOutlineHelper.applyOuterBlur(b, canvas, outlineColor);
20514be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato
20524be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato        return b;
20534be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato    }
20544be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato
205531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    void startDrag(CellLayout.CellInfo cellInfo) {
205631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        View child = cellInfo.cell;
2057aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung
205831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        // Make sure the drag was started by a long press as opposed to a long click.
20597984c9496bcaeca23ee7fdecc4d4f1bb2467e0f2Bjorn Bringert        if (!child.isInTouchMode()) {
206031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            return;
206131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
2062aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung
206331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        mDragInfo = cellInfo;
206431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
20650c10bb4a56a8dd06e4ddd9830bd279fdaf4a8df7Patrick Dubroy        CellLayout current = (CellLayout) getChildAt(cellInfo.screen);
206631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        current.onDragChild(child);
20674be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato
20684be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato        child.clearFocus();
20694be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato        child.setPressed(false);
20704be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato
20714be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato        final Canvas canvas = new Canvas();
20724be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato
20738e58e916061cbe2623697efac0924f2aa3753a92Patrick Dubroy        // We need to add extra padding to the bitmap to make room for the glow effect
207438b4f7c5eab773ad36048b5ab8713750dcaaf748Michael Jurka        final int bitmapPadding = HolographicOutlineHelper.MAX_OUTER_BLUR_RADIUS;
20758e58e916061cbe2623697efac0924f2aa3753a92Patrick Dubroy
20764be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato        // The outline is used to visualize where the item will land if dropped
20778e58e916061cbe2623697efac0924f2aa3753a92Patrick Dubroy        mDragOutline = createDragOutline(child, canvas, bitmapPadding);
20784be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato
20794be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato        // The drag bitmap follows the touch point around on the screen
20808e58e916061cbe2623697efac0924f2aa3753a92Patrick Dubroy        final Bitmap b = createDragBitmap(child, canvas, bitmapPadding);
20814be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato
20824be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato        final int bmpWidth = b.getWidth();
20834be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato        final int bmpHeight = b.getHeight();
20844be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato        child.getLocationOnScreen(mTempXY);
20854be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato        final int screenX = (int) mTempXY[0] + (child.getWidth() - bmpWidth) / 2;
20864be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato        final int screenY = (int) mTempXY[1] + (child.getHeight() - bmpHeight) / 2;
2087400438b79fe412cb625c96297edeea9c6155349eWinson Chung        mLauncher.lockScreenOrientation();
20885f445425606b2c27276a79e9e871cf7f67b1b719Patrick Dubroy        mDragController.startDrag(
20895f445425606b2c27276a79e9e871cf7f67b1b719Patrick Dubroy                b, screenX, screenY, this, child.getTag(), DragController.DRAG_ACTION_MOVE);
20904be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato        b.recycle();
209131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
209231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
20930280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka    void addApplicationShortcut(ShortcutInfo info, int screen, int cellX, int cellY,
20940280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka            boolean insertAtFirst, int intersectX, int intersectY) {
20950280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka        final CellLayout cellLayout = (CellLayout) getChildAt(screen);
20960280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka        View view = mLauncher.createShortcut(R.layout.application, cellLayout, (ShortcutInfo) info);
209731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
20980280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka        final int[] cellXY = new int[2];
20990280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka        cellLayout.findCellForSpanThatIntersects(cellXY, 1, 1, intersectX, intersectY);
21000280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka        addInScreen(view, screen, cellXY[0], cellXY[1], 1, 1, insertAtFirst);
21010280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka        LauncherModel.addOrMoveItemInDatabase(mLauncher, info,
21020280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka                LauncherSettings.Favorites.CONTAINER_DESKTOP, screen,
21030280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka                cellXY[0], cellXY[1]);
210431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
210531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
2106ce34a9768b01115def95f000a6a8f35870f10d3aPatrick Dubroy    private void setPositionForDropAnimation(
2107ce34a9768b01115def95f000a6a8f35870f10d3aPatrick Dubroy            View dragView, int dragViewX, int dragViewY, View parent, View child) {
2108ce34a9768b01115def95f000a6a8f35870f10d3aPatrick Dubroy        final CellLayout.LayoutParams lp = (CellLayout.LayoutParams) child.getLayoutParams();
2109ce34a9768b01115def95f000a6a8f35870f10d3aPatrick Dubroy
2110ce34a9768b01115def95f000a6a8f35870f10d3aPatrick Dubroy        // Based on the position of the drag view, find the top left of the original view
2111ce34a9768b01115def95f000a6a8f35870f10d3aPatrick Dubroy        int viewX = dragViewX + (dragView.getWidth() - child.getWidth()) / 2;
2112ce34a9768b01115def95f000a6a8f35870f10d3aPatrick Dubroy        int viewY = dragViewY + (dragView.getHeight() - child.getHeight()) / 2;
2113a669d79d0dcf034651ce305a8cd334272bec3374Patrick Dubroy        viewX += getResources().getInteger(R.integer.config_dragViewOffsetX);
2114a669d79d0dcf034651ce305a8cd334272bec3374Patrick Dubroy        viewY += getResources().getInteger(R.integer.config_dragViewOffsetY);
2115ce34a9768b01115def95f000a6a8f35870f10d3aPatrick Dubroy
2116cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy        // Set its old pos (in the new parent's coordinates); it will be animated
2117cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy        // in animateViewIntoPosition after the next layout pass
2118ce34a9768b01115def95f000a6a8f35870f10d3aPatrick Dubroy        lp.oldX = viewX - (parent.getLeft() - mScrollX);
2119ce34a9768b01115def95f000a6a8f35870f10d3aPatrick Dubroy        lp.oldY = viewY - (parent.getTop() - mScrollY);
2120ce34a9768b01115def95f000a6a8f35870f10d3aPatrick Dubroy    }
21210280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka
2122df9de0b121973bb59f4b8a74ade3000ec201c503Adam Cohen    /*
2123df9de0b121973bb59f4b8a74ade3000ec201c503Adam Cohen     * We should be careful that this method cannot result in any synchronous requestLayout()
2124df9de0b121973bb59f4b8a74ade3000ec201c503Adam Cohen     * calls, as it is called from onLayout().
2125df9de0b121973bb59f4b8a74ade3000ec201c503Adam Cohen     */
2126cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy    public void animateViewIntoPosition(final View view) {
21278c920dd3683d752aa4c43e964831ce53f9b72887Michael Jurka        final CellLayout parent = (CellLayout) view.getParent().getParent();
2128cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy        final CellLayout.LayoutParams lp = (CellLayout.LayoutParams) view.getLayoutParams();
2129cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy
2130cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy        // Convert the animation params to be relative to the Workspace, not the CellLayout
2131cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy        final int fromX = lp.oldX + parent.getLeft();
2132cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy        final int fromY = lp.oldY + parent.getTop();
2133cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy
2134cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy        final int dx = lp.x - lp.oldX;
2135cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy        final int dy = lp.y - lp.oldY;
2136cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy
2137cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy        // Calculate the duration of the animation based on the object's distance
2138cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy        final float dist = (float) Math.sqrt(dx*dx + dy*dy);
2139cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy        final Resources res = getResources();
2140cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy        final float maxDist = (float) res.getInteger(R.integer.config_dropAnimMaxDist);
21418ae3a62e2e48dfb8f860c8b6e2c7e72b9595d7aaPatrick Dubroy        int duration = res.getInteger(R.integer.config_dropAnimMaxDuration);
21428ae3a62e2e48dfb8f860c8b6e2c7e72b9595d7aaPatrick Dubroy        if (dist < maxDist) {
21438ae3a62e2e48dfb8f860c8b6e2c7e72b9595d7aaPatrick Dubroy            duration *= mQuintEaseOutInterpolator.getInterpolation(dist / maxDist);
21448ae3a62e2e48dfb8f860c8b6e2c7e72b9595d7aaPatrick Dubroy        }
2145cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy
2146f24312876b097e25cec922edbb58334ed234dcd7Patrick Dubroy        if (mDropAnim != null) {
21478edd75c8bb0729a10cb39f614183e3e9ae4288e8Michael Jurka            mDropAnim.end();
2148f24312876b097e25cec922edbb58334ed234dcd7Patrick Dubroy        }
2149f24312876b097e25cec922edbb58334ed234dcd7Patrick Dubroy        mDropAnim = new ValueAnimator();
2150f24312876b097e25cec922edbb58334ed234dcd7Patrick Dubroy        mDropAnim.setInterpolator(mQuintEaseOutInterpolator);
2151cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy
2152f24312876b097e25cec922edbb58334ed234dcd7Patrick Dubroy        // The view is invisible during the animation; we render it manually.
21538edd75c8bb0729a10cb39f614183e3e9ae4288e8Michael Jurka        mDropAnim.addListener(new AnimatorListenerAdapter() {
2154f24312876b097e25cec922edbb58334ed234dcd7Patrick Dubroy            public void onAnimationStart(Animator animation) {
2155f24312876b097e25cec922edbb58334ed234dcd7Patrick Dubroy                // Set this here so that we don't render it until the animation begins
2156f24312876b097e25cec922edbb58334ed234dcd7Patrick Dubroy                mDropView = view;
2157f24312876b097e25cec922edbb58334ed234dcd7Patrick Dubroy            }
2158f24312876b097e25cec922edbb58334ed234dcd7Patrick Dubroy
21598edd75c8bb0729a10cb39f614183e3e9ae4288e8Michael Jurka            public void onAnimationEnd(Animator animation) {
2160f24312876b097e25cec922edbb58334ed234dcd7Patrick Dubroy                if (mDropView != null) {
2161f24312876b097e25cec922edbb58334ed234dcd7Patrick Dubroy                    mDropView.setVisibility(View.VISIBLE);
2162f24312876b097e25cec922edbb58334ed234dcd7Patrick Dubroy                    mDropView = null;
2163cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy                }
2164f24312876b097e25cec922edbb58334ed234dcd7Patrick Dubroy            }
2165f24312876b097e25cec922edbb58334ed234dcd7Patrick Dubroy        });
21668ae3a62e2e48dfb8f860c8b6e2c7e72b9595d7aaPatrick Dubroy
2167cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy        mDropAnim.setDuration(duration);
2168cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy        mDropAnim.setFloatValues(0.0f, 1.0f);
2169cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy        mDropAnim.removeAllUpdateListeners();
2170cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy        mDropAnim.addUpdateListener(new AnimatorUpdateListener() {
2171cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy            public void onAnimationUpdate(ValueAnimator animation) {
2172cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy                final float percent = (Float) animation.getAnimatedValue();
2173cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy                // Invalidate the old position
2174cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy                invalidate(mDropViewPos[0], mDropViewPos[1],
2175cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy                        mDropViewPos[0] + view.getWidth(), mDropViewPos[1] + view.getHeight());
2176cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy
2177cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy                mDropViewPos[0] = fromX + (int) (percent * dx + 0.5f);
2178cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy                mDropViewPos[1] = fromY + (int) (percent * dy + 0.5f);
2179cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy                invalidate(mDropViewPos[0], mDropViewPos[1],
2180cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy                        mDropViewPos[0] + view.getWidth(), mDropViewPos[1] + view.getHeight());
2181cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy            }
2182cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy        });
21838ae3a62e2e48dfb8f860c8b6e2c7e72b9595d7aaPatrick Dubroy
21846920c2ce340354286c152cefaf75445314194778Patrick Dubroy        mDropAnim.start();
2185cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy    }
2186cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy
2187cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy    /**
2188cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy     * {@inheritDoc}
2189cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy     */
2190cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy    public boolean acceptDrop(DragSource source, int x, int y,
2191cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy            int xOffset, int yOffset, DragView dragView, Object dragInfo) {
2192cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy
2193cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy        // If it's an external drop (e.g. from All Apps), check if it should be accepted
2194cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy        if (source != this) {
2195cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy            // Don't accept the drop if we're not over a screen at time of drop
21963d79192da756fa9c46215d5c39f17cd8ac7fb43eMichael Jurka            if (mDragTargetLayout == null || !mDragTargetLayout.getAcceptsDrops()) {
2197cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy                return false;
2198cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy            }
2199cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy
2200cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy            final CellLayout.CellInfo dragCellInfo = mDragInfo;
2201cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy            final int spanX = dragCellInfo == null ? 1 : dragCellInfo.spanX;
2202cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy            final int spanY = dragCellInfo == null ? 1 : dragCellInfo.spanY;
2203cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy
2204cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy            final View ignoreView = dragCellInfo == null ? null : dragCellInfo.cell;
2205cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy
2206cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy            // Don't accept the drop if there's no room for the item
2207cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy            if (!mDragTargetLayout.findCellForSpanIgnoring(null, spanX, spanY, ignoreView)) {
2208cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy                mLauncher.showOutOfSpaceMessage();
2209cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy                return false;
2210cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy            }
2211cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy        }
2212cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy        return true;
2213cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy    }
2214cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy
221500acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato    public void onDrop(DragSource source, int x, int y, int xOffset, int yOffset,
221600acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato            DragView dragView, Object dragInfo) {
2217c4e772e4b3f21bde342e475ebc49b5b76b8f74e8Michael Jurka        boolean largeOrSpringLoaded = !mIsSmall || mWasSpringLoadedOnDragExit;
2218c4e772e4b3f21bde342e475ebc49b5b76b8f74e8Michael Jurka        int originX = largeOrSpringLoaded ? x - xOffset : x - xOffset + dragView.getWidth() / 2;
2219c4e772e4b3f21bde342e475ebc49b5b76b8f74e8Michael Jurka        int originY = largeOrSpringLoaded ? y - yOffset : y - yOffset + dragView.getHeight() / 2;
2220ce34a9768b01115def95f000a6a8f35870f10d3aPatrick Dubroy
2221c0e8fcae492730210b2b8b6d5bb3d65636bad245Michael Jurka        if (mIsSmall || mIsInUnshrinkAnimation) {
22220280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka            // get originX and originY in the local coordinate system of the screen
22230280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka            mTempOriginXY[0] = originX;
22240280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka            mTempOriginXY[1] = originY;
2225d718d6a7ba424b600052a147e5633a201a04ccb7Michael Jurka            mapPointFromSelfToChild(mDragTargetLayout, mTempOriginXY);
22260280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka            originX = (int)mTempOriginXY[0];
22270280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka            originY = (int)mTempOriginXY[1];
2228c4e772e4b3f21bde342e475ebc49b5b76b8f74e8Michael Jurka            if (!largeOrSpringLoaded) {
2229c4e772e4b3f21bde342e475ebc49b5b76b8f74e8Michael Jurka               originX -= mDragTargetLayout.getCellWidth() / 2;
2230c4e772e4b3f21bde342e475ebc49b5b76b8f74e8Michael Jurka               originY -= mDragTargetLayout.getCellHeight() / 2;
2231c4e772e4b3f21bde342e475ebc49b5b76b8f74e8Michael Jurka            }
2232a63c452f5bd491ba9b28c332ccedc6c6c7e2f3ccMichael Jurka        }
2233c6ee42e25f203e408826e7eab4ad8faf67ed2ff9Michael Jurka
22343e5ad58a6885273a60f8eb77aa9aee965eecdb2cMichael Jurka        // When you are in customization mode and drag to a particular screen, make that the
22353e5ad58a6885273a60f8eb77aa9aee965eecdb2cMichael Jurka        // new current/default screen, so any subsequent taps add items to that screen
22363e5ad58a6885273a60f8eb77aa9aee965eecdb2cMichael Jurka        if (!mLauncher.isAllAppsVisible()) {
22373e5ad58a6885273a60f8eb77aa9aee965eecdb2cMichael Jurka            int dragTargetIndex = indexOfChild(mDragTargetLayout);
22383e5ad58a6885273a60f8eb77aa9aee965eecdb2cMichael Jurka            if (mCurrentPage != dragTargetIndex && (mIsSmall || mIsInUnshrinkAnimation)) {
22393e5ad58a6885273a60f8eb77aa9aee965eecdb2cMichael Jurka                scrollToNewPageWithoutMovingPages(dragTargetIndex);
22403e5ad58a6885273a60f8eb77aa9aee965eecdb2cMichael Jurka            }
2241b09cac5a738b679038cbeaec80041637100b65d9Michael Jurka        }
2242b09cac5a738b679038cbeaec80041637100b65d9Michael Jurka
224331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        if (source != this) {
22445f445425606b2c27276a79e9e871cf7f67b1b719Patrick Dubroy            if ((mIsSmall || mIsInUnshrinkAnimation) && !mLauncher.isAllAppsVisible()) {
22455f445425606b2c27276a79e9e871cf7f67b1b719Patrick Dubroy                // When the workspace is shrunk and the drop comes from customize, don't actually
22465f445425606b2c27276a79e9e871cf7f67b1b719Patrick Dubroy                // add the item to the screen -- customize will do this itself
22475f445425606b2c27276a79e9e871cf7f67b1b719Patrick Dubroy                return;
22485f445425606b2c27276a79e9e871cf7f67b1b719Patrick Dubroy            }
2249c4e772e4b3f21bde342e475ebc49b5b76b8f74e8Michael Jurka            onDropExternal(new int[] { originX, originY }, dragInfo, mDragTargetLayout, false);
2250ce34a9768b01115def95f000a6a8f35870f10d3aPatrick Dubroy        } else if (mDragInfo != null) {
2251ce34a9768b01115def95f000a6a8f35870f10d3aPatrick Dubroy            final View cell = mDragInfo.cell;
225254fa3b95557c283976e8c1aa8a157b460b0b4513Patrick Dubroy            CellLayout dropTargetLayout = mDragTargetLayout;
225354fa3b95557c283976e8c1aa8a157b460b0b4513Patrick Dubroy
225454fa3b95557c283976e8c1aa8a157b460b0b4513Patrick Dubroy            // Handle the case where the user drops when in the scroll area.
225554fa3b95557c283976e8c1aa8a157b460b0b4513Patrick Dubroy            // This is treated as a drop on the adjacent page.
225654fa3b95557c283976e8c1aa8a157b460b0b4513Patrick Dubroy            if (dropTargetLayout == null && mInScrollArea) {
225754fa3b95557c283976e8c1aa8a157b460b0b4513Patrick Dubroy                if (mPendingScrollDirection == DragController.SCROLL_LEFT) {
225854fa3b95557c283976e8c1aa8a157b460b0b4513Patrick Dubroy                    dropTargetLayout = (CellLayout) getChildAt(mCurrentPage - 1);
225954fa3b95557c283976e8c1aa8a157b460b0b4513Patrick Dubroy                } else if (mPendingScrollDirection == DragController.SCROLL_RIGHT) {
226054fa3b95557c283976e8c1aa8a157b460b0b4513Patrick Dubroy                    dropTargetLayout = (CellLayout) getChildAt(mCurrentPage + 1);
226154fa3b95557c283976e8c1aa8a157b460b0b4513Patrick Dubroy                }
226254fa3b95557c283976e8c1aa8a157b460b0b4513Patrick Dubroy            }
226354fa3b95557c283976e8c1aa8a157b460b0b4513Patrick Dubroy
226454fa3b95557c283976e8c1aa8a157b460b0b4513Patrick Dubroy            if (dropTargetLayout != null) {
2265cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy                // Move internally
2266cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy                mTargetCell = findNearestVacantArea(originX, originY,
226754fa3b95557c283976e8c1aa8a157b460b0b4513Patrick Dubroy                        mDragInfo.spanX, mDragInfo.spanY, cell, dropTargetLayout,
2268cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy                        mTargetCell);
2269cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy
227054fa3b95557c283976e8c1aa8a157b460b0b4513Patrick Dubroy                final int screen = (mTargetCell == null) ?
227154fa3b95557c283976e8c1aa8a157b460b0b4513Patrick Dubroy                        mDragInfo.screen : indexOfChild(dropTargetLayout);
227254fa3b95557c283976e8c1aa8a157b460b0b4513Patrick Dubroy
227354fa3b95557c283976e8c1aa8a157b460b0b4513Patrick Dubroy                if (screen != mCurrentPage) {
227454fa3b95557c283976e8c1aa8a157b460b0b4513Patrick Dubroy                    snapToPage(screen);
227554fa3b95557c283976e8c1aa8a157b460b0b4513Patrick Dubroy                }
227654fa3b95557c283976e8c1aa8a157b460b0b4513Patrick Dubroy
227754fa3b95557c283976e8c1aa8a157b460b0b4513Patrick Dubroy                if (mTargetCell != null) {
22789438336724b4f8b54c7cdc49c5f01dd9568926ebPatrick Dubroy                    if (screen != mDragInfo.screen) {
22799438336724b4f8b54c7cdc49c5f01dd9568926ebPatrick Dubroy                        // Reparent the view
22809438336724b4f8b54c7cdc49c5f01dd9568926ebPatrick Dubroy                        ((CellLayout) getChildAt(mDragInfo.screen)).removeView(cell);
22819438336724b4f8b54c7cdc49c5f01dd9568926ebPatrick Dubroy                        addInScreen(cell, screen, mTargetCell[0], mTargetCell[1],
22829438336724b4f8b54c7cdc49c5f01dd9568926ebPatrick Dubroy                                mDragInfo.spanX, mDragInfo.spanY);
22839438336724b4f8b54c7cdc49c5f01dd9568926ebPatrick Dubroy                    }
2284cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy
22859438336724b4f8b54c7cdc49c5f01dd9568926ebPatrick Dubroy                    // update the item's position after drop
22869438336724b4f8b54c7cdc49c5f01dd9568926ebPatrick Dubroy                    final ItemInfo info = (ItemInfo) cell.getTag();
22879438336724b4f8b54c7cdc49c5f01dd9568926ebPatrick Dubroy                    CellLayout.LayoutParams lp = (CellLayout.LayoutParams) cell.getLayoutParams();
228854fa3b95557c283976e8c1aa8a157b460b0b4513Patrick Dubroy                    dropTargetLayout.onMove(cell, mTargetCell[0], mTargetCell[1]);
22899438336724b4f8b54c7cdc49c5f01dd9568926ebPatrick Dubroy                    lp.cellX = mTargetCell[0];
22909438336724b4f8b54c7cdc49c5f01dd9568926ebPatrick Dubroy                    lp.cellY = mTargetCell[1];
22919438336724b4f8b54c7cdc49c5f01dd9568926ebPatrick Dubroy                    cell.setId(LauncherModel.getCellLayoutChildId(-1, mDragInfo.screen,
22929438336724b4f8b54c7cdc49c5f01dd9568926ebPatrick Dubroy                            mTargetCell[0], mTargetCell[1], mDragInfo.spanX, mDragInfo.spanY));
22939438336724b4f8b54c7cdc49c5f01dd9568926ebPatrick Dubroy
22949438336724b4f8b54c7cdc49c5f01dd9568926ebPatrick Dubroy                    LauncherModel.moveItemInDatabase(mLauncher, info,
22959438336724b4f8b54c7cdc49c5f01dd9568926ebPatrick Dubroy                            LauncherSettings.Favorites.CONTAINER_DESKTOP, screen,
22969438336724b4f8b54c7cdc49c5f01dd9568926ebPatrick Dubroy                            lp.cellX, lp.cellY);
22979438336724b4f8b54c7cdc49c5f01dd9568926ebPatrick Dubroy                }
229831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            }
2299cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy
23008c920dd3683d752aa4c43e964831ce53f9b72887Michael Jurka            final CellLayout parent = (CellLayout) cell.getParent().getParent();
2301ce34a9768b01115def95f000a6a8f35870f10d3aPatrick Dubroy
2302ce34a9768b01115def95f000a6a8f35870f10d3aPatrick Dubroy            // Prepare it to be animated into its new position
2303ce34a9768b01115def95f000a6a8f35870f10d3aPatrick Dubroy            // This must be called after the view has been re-parented
2304cd68ff5b88de9b5136ff5a9ef698e4db2fc5db66Patrick Dubroy            setPositionForDropAnimation(dragView, originX, originY, parent, cell);
2305d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka            boolean animateDrop = !mWasSpringLoadedOnDragExit;
2306d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka            parent.onDropChild(cell, animateDrop);
230731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
230831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
230931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
2310aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung    public void onDragEnter(DragSource source, int x, int y, int xOffset,
2311aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung            int yOffset, DragView dragView, Object dragInfo) {
231208ae2ec4847a971ad1b19c163e3a0d6307a8ed72Patrick Dubroy        mDragTargetLayout = null; // Reset the drag state
231308ae2ec4847a971ad1b19c163e3a0d6307a8ed72Patrick Dubroy
2314d718d6a7ba424b600052a147e5633a201a04ccb7Michael Jurka        if (!mIsSmall) {
231508ae2ec4847a971ad1b19c163e3a0d6307a8ed72Patrick Dubroy            mDragTargetLayout = getCurrentDropLayout();
2316a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung            mDragTargetLayout.onDragEnter();
2317d718d6a7ba424b600052a147e5633a201a04ccb7Michael Jurka            showOutlines();
2318d718d6a7ba424b600052a147e5633a201a04ccb7Michael Jurka        }
231931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
232031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
232118014791be2e3f41080f0bf621c618e3f096c5c7Michael Jurka    public DropTarget getDropTargetDelegate(DragSource source, int x, int y,
232218014791be2e3f41080f0bf621c618e3f096c5c7Michael Jurka            int xOffset, int yOffset, DragView dragView, Object dragInfo) {
23236569f2c80e179c2f8ed73dae6b01d971ec20f005Patrick Dubroy
2324c0e8fcae492730210b2b8b6d5bb3d65636bad245Michael Jurka        if (mIsSmall || mIsInUnshrinkAnimation) {
2325d718d6a7ba424b600052a147e5633a201a04ccb7Michael Jurka            // If we're shrunken, don't let anyone drag on folders/etc that are on the mini-screens
23260280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka            return null;
23270280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka        }
2328440c360bc395c43683fa9ca226e59f9e35f9e926Patrick Dubroy        // We may need to delegate the drag to a child view. If a 1x1 item
2329440c360bc395c43683fa9ca226e59f9e35f9e926Patrick Dubroy        // would land in a cell occupied by a DragTarget (e.g. a Folder),
2330440c360bc395c43683fa9ca226e59f9e35f9e926Patrick Dubroy        // then drag events should be handled by that child.
2331440c360bc395c43683fa9ca226e59f9e35f9e926Patrick Dubroy
23326569f2c80e179c2f8ed73dae6b01d971ec20f005Patrick Dubroy        ItemInfo item = (ItemInfo)dragInfo;
2333440c360bc395c43683fa9ca226e59f9e35f9e926Patrick Dubroy        CellLayout currentLayout = getCurrentDropLayout();
2334440c360bc395c43683fa9ca226e59f9e35f9e926Patrick Dubroy
2335440c360bc395c43683fa9ca226e59f9e35f9e926Patrick Dubroy        int dragPointX, dragPointY;
2336440c360bc395c43683fa9ca226e59f9e35f9e926Patrick Dubroy        if (item.spanX == 1 && item.spanY == 1) {
2337440c360bc395c43683fa9ca226e59f9e35f9e926Patrick Dubroy            // For a 1x1, calculate the drop cell exactly as in onDragOver
2338440c360bc395c43683fa9ca226e59f9e35f9e926Patrick Dubroy            dragPointX = x - xOffset;
2339440c360bc395c43683fa9ca226e59f9e35f9e926Patrick Dubroy            dragPointY = y - yOffset;
2340440c360bc395c43683fa9ca226e59f9e35f9e926Patrick Dubroy        } else {
2341440c360bc395c43683fa9ca226e59f9e35f9e926Patrick Dubroy            // Otherwise, use the exact drag coordinates
2342440c360bc395c43683fa9ca226e59f9e35f9e926Patrick Dubroy            dragPointX = x;
2343440c360bc395c43683fa9ca226e59f9e35f9e926Patrick Dubroy            dragPointY = y;
2344440c360bc395c43683fa9ca226e59f9e35f9e926Patrick Dubroy        }
23450280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka        dragPointX += mScrollX - currentLayout.getLeft();
23460280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka        dragPointY += mScrollY - currentLayout.getTop();
2347440c360bc395c43683fa9ca226e59f9e35f9e926Patrick Dubroy
2348440c360bc395c43683fa9ca226e59f9e35f9e926Patrick Dubroy        // If we are dragging over a cell that contains a DropTarget that will
2349440c360bc395c43683fa9ca226e59f9e35f9e926Patrick Dubroy        // accept the drop, delegate to that DropTarget.
2350440c360bc395c43683fa9ca226e59f9e35f9e926Patrick Dubroy        final int[] cellXY = mTempCell;
2351440c360bc395c43683fa9ca226e59f9e35f9e926Patrick Dubroy        currentLayout.estimateDropCell(dragPointX, dragPointY, item.spanX, item.spanY, cellXY);
2352440c360bc395c43683fa9ca226e59f9e35f9e926Patrick Dubroy        View child = currentLayout.getChildAt(cellXY[0], cellXY[1]);
2353440c360bc395c43683fa9ca226e59f9e35f9e926Patrick Dubroy        if (child instanceof DropTarget) {
2354440c360bc395c43683fa9ca226e59f9e35f9e926Patrick Dubroy            DropTarget target = (DropTarget)child;
2355440c360bc395c43683fa9ca226e59f9e35f9e926Patrick Dubroy            if (target.acceptDrop(source, x, y, xOffset, yOffset, dragView, dragInfo)) {
2356440c360bc395c43683fa9ca226e59f9e35f9e926Patrick Dubroy                return target;
2357440c360bc395c43683fa9ca226e59f9e35f9e926Patrick Dubroy            }
2358440c360bc395c43683fa9ca226e59f9e35f9e926Patrick Dubroy        }
2359440c360bc395c43683fa9ca226e59f9e35f9e926Patrick Dubroy        return null;
2360440c360bc395c43683fa9ca226e59f9e35f9e926Patrick Dubroy    }
23616569f2c80e179c2f8ed73dae6b01d971ec20f005Patrick Dubroy
2362a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung    /**
2363580e27748137ff08599aa719d106b31215a28353Winson Chung     * Tests to see if the drop will be accepted by Launcher, and if so, includes additional data
2364580e27748137ff08599aa719d106b31215a28353Winson Chung     * in the returned structure related to the widgets that match the drop (or a null list if it is
2365580e27748137ff08599aa719d106b31215a28353Winson Chung     * a shortcut drop).  If the drop is not accepted then a null structure is returned.
2366580e27748137ff08599aa719d106b31215a28353Winson Chung     */
2367580e27748137ff08599aa719d106b31215a28353Winson Chung    private Pair<Integer, List<WidgetMimeTypeHandlerData>> validateDrag(DragEvent event) {
2368580e27748137ff08599aa719d106b31215a28353Winson Chung        final LauncherModel model = mLauncher.getModel();
2369580e27748137ff08599aa719d106b31215a28353Winson Chung        final ClipDescription desc = event.getClipDescription();
2370580e27748137ff08599aa719d106b31215a28353Winson Chung        final int mimeTypeCount = desc.getMimeTypeCount();
2371580e27748137ff08599aa719d106b31215a28353Winson Chung        for (int i = 0; i < mimeTypeCount; ++i) {
2372580e27748137ff08599aa719d106b31215a28353Winson Chung            final String mimeType = desc.getMimeType(i);
2373580e27748137ff08599aa719d106b31215a28353Winson Chung            if (mimeType.equals(InstallShortcutReceiver.SHORTCUT_MIMETYPE)) {
2374580e27748137ff08599aa719d106b31215a28353Winson Chung                return new Pair<Integer, List<WidgetMimeTypeHandlerData>>(i, null);
2375580e27748137ff08599aa719d106b31215a28353Winson Chung            } else {
2376580e27748137ff08599aa719d106b31215a28353Winson Chung                final List<WidgetMimeTypeHandlerData> widgets =
2377580e27748137ff08599aa719d106b31215a28353Winson Chung                    model.resolveWidgetsForMimeType(mContext, mimeType);
2378580e27748137ff08599aa719d106b31215a28353Winson Chung                if (widgets.size() > 0) {
2379580e27748137ff08599aa719d106b31215a28353Winson Chung                    return new Pair<Integer, List<WidgetMimeTypeHandlerData>>(i, widgets);
2380580e27748137ff08599aa719d106b31215a28353Winson Chung                }
2381580e27748137ff08599aa719d106b31215a28353Winson Chung            }
2382580e27748137ff08599aa719d106b31215a28353Winson Chung        }
2383580e27748137ff08599aa719d106b31215a28353Winson Chung        return null;
2384580e27748137ff08599aa719d106b31215a28353Winson Chung    }
2385580e27748137ff08599aa719d106b31215a28353Winson Chung
2386580e27748137ff08599aa719d106b31215a28353Winson Chung    /**
2387a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung     * Global drag and drop handler
2388a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung     */
2389a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung    @Override
2390a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung    public boolean onDragEvent(DragEvent event) {
239168846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung        final ClipDescription desc = event.getClipDescription();
2392a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung        final CellLayout layout = (CellLayout) getChildAt(mCurrentPage);
2393a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung        final int[] pos = new int[2];
2394a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung        layout.getLocationOnScreen(pos);
2395a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung        // We need to offset the drag coordinates to layout coordinate space
2396a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung        final int x = (int) event.getX() - pos[0];
2397a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung        final int y = (int) event.getY() - pos[1];
2398a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung
2399a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung        switch (event.getAction()) {
2400580e27748137ff08599aa719d106b31215a28353Winson Chung        case DragEvent.ACTION_DRAG_STARTED: {
2401580e27748137ff08599aa719d106b31215a28353Winson Chung            // Validate this drag
2402580e27748137ff08599aa719d106b31215a28353Winson Chung            Pair<Integer, List<WidgetMimeTypeHandlerData>> test = validateDrag(event);
2403580e27748137ff08599aa719d106b31215a28353Winson Chung            if (test != null) {
2404580e27748137ff08599aa719d106b31215a28353Winson Chung                boolean isShortcut = (test.second == null);
2405580e27748137ff08599aa719d106b31215a28353Winson Chung                if (isShortcut) {
2406580e27748137ff08599aa719d106b31215a28353Winson Chung                    // Check if we have enough space on this screen to add a new shortcut
2407580e27748137ff08599aa719d106b31215a28353Winson Chung                    if (!layout.findCellForSpan(pos, 1, 1)) {
2408580e27748137ff08599aa719d106b31215a28353Winson Chung                        Toast.makeText(mContext, mContext.getString(R.string.out_of_space),
2409580e27748137ff08599aa719d106b31215a28353Winson Chung                                Toast.LENGTH_SHORT).show();
2410580e27748137ff08599aa719d106b31215a28353Winson Chung                        return false;
2411580e27748137ff08599aa719d106b31215a28353Winson Chung                    }
2412580e27748137ff08599aa719d106b31215a28353Winson Chung                }
2413580e27748137ff08599aa719d106b31215a28353Winson Chung            } else {
2414580e27748137ff08599aa719d106b31215a28353Winson Chung                // Show error message if we couldn't accept any of the items
2415580e27748137ff08599aa719d106b31215a28353Winson Chung                Toast.makeText(mContext, mContext.getString(R.string.external_drop_widget_error),
2416a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung                        Toast.LENGTH_SHORT).show();
2417a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung                return false;
2418a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung            }
2419a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung
242068846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung            // Create the drag outline
242168846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung            // We need to add extra padding to the bitmap to make room for the glow effect
242268846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung            final Canvas canvas = new Canvas();
242338b4f7c5eab773ad36048b5ab8713750dcaaf748Michael Jurka            final int bitmapPadding = HolographicOutlineHelper.MAX_OUTER_BLUR_RADIUS;
242468846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung            mDragOutline = createExternalDragOutline(canvas, bitmapPadding);
2425a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung
242668846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung            // Show the current page outlines to indicate that we can accept this drop
242768846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung            showOutlines();
242833945b21544bc98381df17726a3537c292d8c985Michael Jurka            layout.setIsDragOccuring(true);
242968846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung            layout.onDragEnter();
243068846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung            layout.visualizeDropLocation(null, mDragOutline, x, y, 1, 1);
2431a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung
243268846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung            return true;
2433580e27748137ff08599aa719d106b31215a28353Winson Chung        }
2434a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung        case DragEvent.ACTION_DRAG_LOCATION:
2435a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung            // Visualize the drop location
2436a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung            layout.visualizeDropLocation(null, mDragOutline, x, y, 1, 1);
2437a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung            return true;
2438580e27748137ff08599aa719d106b31215a28353Winson Chung        case DragEvent.ACTION_DROP: {
2439a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung            // Try and add any shortcuts
2440a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung            final LauncherModel model = mLauncher.getModel();
2441a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung            final ClipData data = event.getClipData();
244255cef262f97749300c2f6e764da0b00cbcb78879Winson Chung
244368846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung            // We assume that the mime types are ordered in descending importance of
244468846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung            // representation. So we enumerate the list of mime types and alert the
244568846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung            // user if any widgets can handle the drop.  Only the most preferred
244668846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung            // representation will be handled.
244768846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung            pos[0] = x;
244868846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung            pos[1] = y;
2449580e27748137ff08599aa719d106b31215a28353Winson Chung            Pair<Integer, List<WidgetMimeTypeHandlerData>> test = validateDrag(event);
2450580e27748137ff08599aa719d106b31215a28353Winson Chung            if (test != null) {
2451580e27748137ff08599aa719d106b31215a28353Winson Chung                final int index = test.first;
2452580e27748137ff08599aa719d106b31215a28353Winson Chung                final List<WidgetMimeTypeHandlerData> widgets = test.second;
2453580e27748137ff08599aa719d106b31215a28353Winson Chung                final boolean isShortcut = (widgets == null);
2454580e27748137ff08599aa719d106b31215a28353Winson Chung                final String mimeType = desc.getMimeType(index);
2455580e27748137ff08599aa719d106b31215a28353Winson Chung                if (isShortcut) {
24560d5aad7edbed3ed5c13904cc13ec8842ffe8837bDianne Hackborn                    final Intent intent = data.getItemAt(index).getIntent();
245768846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung                    Object info = model.infoFromShortcutIntent(mContext, intent, data.getIcon());
2458c4e772e4b3f21bde342e475ebc49b5b76b8f74e8Michael Jurka                    onDropExternal(new int[] { x, y }, info, layout, false);
245968846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung                } else {
2460580e27748137ff08599aa719d106b31215a28353Winson Chung                    if (widgets.size() == 1) {
246168846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung                        // If there is only one item, then go ahead and add and configure
246268846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung                        // that widget
246368846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung                        final AppWidgetProviderInfo widgetInfo = widgets.get(0).widgetInfo;
246468846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung                        final PendingAddWidgetInfo createInfo =
246568846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung                                new PendingAddWidgetInfo(widgetInfo, mimeType, data);
246668846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung                        mLauncher.addAppWidgetFromDrop(createInfo, mCurrentPage, pos);
2467580e27748137ff08599aa719d106b31215a28353Winson Chung                    } else {
246868846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung                        // Show the widget picker dialog if there is more than one widget
246968846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung                        // that can handle this data type
247068846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung                        final InstallWidgetReceiver.WidgetListAdapter adapter =
247168846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung                            new InstallWidgetReceiver.WidgetListAdapter(mLauncher, mimeType,
247268846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung                                    data, widgets, layout, mCurrentPage, pos);
247368846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung                        final AlertDialog.Builder builder =
247468846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung                            new AlertDialog.Builder(mContext);
247568846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung                        builder.setAdapter(adapter, adapter);
247668846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung                        builder.setCancelable(true);
247768846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung                        builder.setTitle(mContext.getString(
247868846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung                                R.string.external_drop_widget_pick_title));
247968846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung                        builder.setIcon(R.drawable.ic_no_applications);
248068846fdce6c01bbe474bd0c8307e1ccaac161cbcWinson Chung                        builder.show();
248155cef262f97749300c2f6e764da0b00cbcb78879Winson Chung                    }
2482a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung                }
2483a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung            }
2484a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung            return true;
2485580e27748137ff08599aa719d106b31215a28353Winson Chung        }
2486a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung        case DragEvent.ACTION_DRAG_ENDED:
2487a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung            // Hide the page outlines after the drop
248833945b21544bc98381df17726a3537c292d8c985Michael Jurka            layout.setIsDragOccuring(false);
2489a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung            layout.onDragExit();
2490a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung            hideOutlines();
2491a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung            return true;
2492a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung        }
2493a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung        return super.onDragEvent(event);
2494a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung    }
2495a9abd0e0bdedb5cbbd12b84cb83037a735e79a20Winson Chung
24964516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka    /*
24974516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka    *
24984516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka    * Convert the 2D coordinate xy from the parent View's coordinate space to this CellLayout's
24994516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka    * coordinate space. The argument xy is modified with the return result.
25004516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka    *
25014516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka    */
25024516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka   void mapPointFromSelfToChild(View v, float[] xy) {
25034516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka       mapPointFromSelfToChild(v, xy, null);
25044516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka   }
25054516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka
25064516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka   /*
25074516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka    *
25084516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka    * Convert the 2D coordinate xy from the parent View's coordinate space to this CellLayout's
25094516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka    * coordinate space. The argument xy is modified with the return result.
25104516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka    *
25114516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka    * if cachedInverseMatrix is not null, this method will just use that matrix instead of
2512d718d6a7ba424b600052a147e5633a201a04ccb7Michael Jurka    * computing it itself; we use this to avoid redundant matrix inversions in
25134516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka    * findMatchingPageForDragOver
25144516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka    *
25154516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka    */
25164516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka   void mapPointFromSelfToChild(View v, float[] xy, Matrix cachedInverseMatrix) {
25174516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka       if (cachedInverseMatrix == null) {
25184516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka           v.getMatrix().invert(mTempInverseMatrix);
25194516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka           cachedInverseMatrix = mTempInverseMatrix;
25204516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka       }
25214516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka       xy[0] = xy[0] + mScrollX - v.getLeft();
25224516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka       xy[1] = xy[1] + mScrollY - v.getTop();
25234516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka       cachedInverseMatrix.mapPoints(xy);
25244516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka   }
25254516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka
25264516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka   /*
25274516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka    *
25284516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka    * Convert the 2D coordinate xy from this CellLayout's coordinate space to
25294516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka    * the parent View's coordinate space. The argument xy is modified with the return result.
25304516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka    *
25314516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka    */
25324516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka   void mapPointFromChildToSelf(View v, float[] xy) {
25334516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka       v.getMatrix().mapPoints(xy);
25344516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka       xy[0] -= (mScrollX - v.getLeft());
25354516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka       xy[1] -= (mScrollY - v.getTop());
25364516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka   }
25374516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka
25384516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka    static private float squaredDistance(float[] point1, float[] point2) {
25394516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka        float distanceX = point1[0] - point2[0];
25404516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka        float distanceY = point2[1] - point2[1];
25414516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka        return distanceX * distanceX + distanceY * distanceY;
25420280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka    }
25430280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka
25444516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka    /*
25454516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka     *
25464516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka     * Returns true if the passed CellLayout cl overlaps with dragView
25474516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka     *
25484516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka     */
25494516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka    boolean overlaps(CellLayout cl, DragView dragView,
25504516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka            int dragViewX, int dragViewY, Matrix cachedInverseMatrix) {
25514516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka        // Transform the coordinates of the item being dragged to the CellLayout's coordinates
25524516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka        final float[] draggedItemTopLeft = mTempDragCoordinates;
2553f12c75cb48f87955600c56ccbe0aac84b0c11b28Michael Jurka        draggedItemTopLeft[0] = dragViewX;
2554f12c75cb48f87955600c56ccbe0aac84b0c11b28Michael Jurka        draggedItemTopLeft[1] = dragViewY;
25554516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka        final float[] draggedItemBottomRight = mTempDragBottomRightCoordinates;
2556f12c75cb48f87955600c56ccbe0aac84b0c11b28Michael Jurka        draggedItemBottomRight[0] = draggedItemTopLeft[0] + dragView.getDragRegionWidth();
2557f12c75cb48f87955600c56ccbe0aac84b0c11b28Michael Jurka        draggedItemBottomRight[1] = draggedItemTopLeft[1] + dragView.getDragRegionHeight();
25584516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka
25594516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka        // Transform the dragged item's top left coordinates
25604516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka        // to the CellLayout's local coordinates
25614516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka        mapPointFromSelfToChild(cl, draggedItemTopLeft, cachedInverseMatrix);
25624516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka        float overlapRegionLeft = Math.max(0f, draggedItemTopLeft[0]);
25634516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka        float overlapRegionTop = Math.max(0f, draggedItemTopLeft[1]);
25644516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka
25654516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka        if (overlapRegionLeft <= cl.getWidth() && overlapRegionTop >= 0) {
25664516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka            // Transform the dragged item's bottom right coordinates
25674516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka            // to the CellLayout's local coordinates
25684516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka            mapPointFromSelfToChild(cl, draggedItemBottomRight, cachedInverseMatrix);
25694516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka            float overlapRegionRight = Math.min(cl.getWidth(), draggedItemBottomRight[0]);
25704516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka            float overlapRegionBottom = Math.min(cl.getHeight(), draggedItemBottomRight[1]);
25714516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka
25724516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka            if (overlapRegionRight >= 0 && overlapRegionBottom <= cl.getHeight()) {
25734516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka                float overlap = (overlapRegionRight - overlapRegionLeft) *
25744516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka                         (overlapRegionBottom - overlapRegionTop);
25754516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka                if (overlap > 0) {
25764516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka                    return true;
25774516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka                }
25784516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka             }
25794516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka        }
25804516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka        return false;
25814516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka    }
2582a63c452f5bd491ba9b28c332ccedc6c6c7e2f3ccMichael Jurka
25834516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka    /*
25844516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka     *
25854516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka     * This method returns the CellLayout that is currently being dragged to. In order to drag
25864516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka     * to a CellLayout, either the touch point must be directly over the CellLayout, or as a second
25874516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka     * strategy, we see if the dragView is overlapping any CellLayout and choose the closest one
25884516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka     *
25894516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka     * Return null if no CellLayout is currently being dragged over
25904516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka     *
25914516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka     */
25924516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka    private CellLayout findMatchingPageForDragOver(
25934516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka            DragView dragView, int originX, int originY, int offsetX, int offsetY) {
25944516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka        // We loop through all the screens (ie CellLayouts) and see which ones overlap
25954516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka        // with the item being dragged and then choose the one that's closest to the touch point
2596a63c452f5bd491ba9b28c332ccedc6c6c7e2f3ccMichael Jurka        final int screenCount = getChildCount();
2597a63c452f5bd491ba9b28c332ccedc6c6c7e2f3ccMichael Jurka        CellLayout bestMatchingScreen = null;
25980280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka        float smallestDistSoFar = Float.MAX_VALUE;
25994516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka
2600a63c452f5bd491ba9b28c332ccedc6c6c7e2f3ccMichael Jurka        for (int i = 0; i < screenCount; i++) {
2601a63c452f5bd491ba9b28c332ccedc6c6c7e2f3ccMichael Jurka            CellLayout cl = (CellLayout)getChildAt(i);
2602a63c452f5bd491ba9b28c332ccedc6c6c7e2f3ccMichael Jurka
26034516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka            final float[] touchXy = mTempTouchCoordinates;
26044516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka            touchXy[0] = originX + offsetX;
26054516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka            touchXy[1] = originY + offsetY;
2606a63c452f5bd491ba9b28c332ccedc6c6c7e2f3ccMichael Jurka
26074516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka            // Transform the touch coordinates to the CellLayout's local coordinates
26084516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka            // If the touch point is within the bounds of the cell layout, we can return immediately
26090280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka            cl.getMatrix().invert(mTempInverseMatrix);
26104516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka            mapPointFromSelfToChild(cl, touchXy, mTempInverseMatrix);
26114516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka
26124516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka            if (touchXy[0] >= 0 && touchXy[0] <= cl.getWidth() &&
26134516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka                    touchXy[1] >= 0 && touchXy[1] <= cl.getHeight()) {
26144516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka                return cl;
26154516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka            }
26164516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka
26174516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka            if (overlaps(cl, dragView, originX, originY, mTempInverseMatrix)) {
26184516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka                // Get the center of the cell layout in screen coordinates
26194516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka                final float[] cellLayoutCenter = mTempCellLayoutCenterCoordinates;
26204516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka                cellLayoutCenter[0] = cl.getWidth()/2;
26214516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka                cellLayoutCenter[1] = cl.getHeight()/2;
26224516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka                mapPointFromChildToSelf(cl, cellLayoutCenter);
26234516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka
26244516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka                touchXy[0] = originX + offsetX;
26254516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka                touchXy[1] = originY + offsetY;
26264516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka
26274516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka                // Calculate the distance between the center of the CellLayout
26284516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka                // and the touch point
26294516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka                float dist = squaredDistance(touchXy, cellLayoutCenter);
26304516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka
26314516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka                if (dist < smallestDistSoFar) {
26320280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka                    smallestDistSoFar = dist;
2633a63c452f5bd491ba9b28c332ccedc6c6c7e2f3ccMichael Jurka                    bestMatchingScreen = cl;
2634a63c452f5bd491ba9b28c332ccedc6c6c7e2f3ccMichael Jurka                }
26354516c11039d77066281f69f9b5d30fdaf1bc05aeMichael Jurka            }
2636a63c452f5bd491ba9b28c332ccedc6c6c7e2f3ccMichael Jurka        }
2637a63c452f5bd491ba9b28c332ccedc6c6c7e2f3ccMichael Jurka        return bestMatchingScreen;
2638a63c452f5bd491ba9b28c332ccedc6c6c7e2f3ccMichael Jurka    }
2639a63c452f5bd491ba9b28c332ccedc6c6c7e2f3ccMichael Jurka
2640440c360bc395c43683fa9ca226e59f9e35f9e926Patrick Dubroy    public void onDragOver(DragSource source, int x, int y, int xOffset, int yOffset,
2641440c360bc395c43683fa9ca226e59f9e35f9e926Patrick Dubroy            DragView dragView, Object dragInfo) {
2642d718d6a7ba424b600052a147e5633a201a04ccb7Michael Jurka        // When touch is inside the scroll area, skip dragOver actions for the current screen
2643d718d6a7ba424b600052a147e5633a201a04ccb7Michael Jurka        if (!mInScrollArea) {
2644d718d6a7ba424b600052a147e5633a201a04ccb7Michael Jurka            CellLayout layout;
2645d718d6a7ba424b600052a147e5633a201a04ccb7Michael Jurka            int originX = x - xOffset;
2646d718d6a7ba424b600052a147e5633a201a04ccb7Michael Jurka            int originY = y - yOffset;
2647d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka            boolean shrunken = mIsSmall || mIsInUnshrinkAnimation;
2648d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka            if (shrunken) {
26490bb8563b1381d92b0d7dbb5b0f814ad656c2f9bdMichael Jurka                mLastDragView = dragView;
26500bb8563b1381d92b0d7dbb5b0f814ad656c2f9bdMichael Jurka                mLastDragOriginX = originX;
26510bb8563b1381d92b0d7dbb5b0f814ad656c2f9bdMichael Jurka                mLastDragOriginY = originY;
26520bb8563b1381d92b0d7dbb5b0f814ad656c2f9bdMichael Jurka                mLastDragXOffset = xOffset;
26530bb8563b1381d92b0d7dbb5b0f814ad656c2f9bdMichael Jurka                mLastDragYOffset = yOffset;
26540bb8563b1381d92b0d7dbb5b0f814ad656c2f9bdMichael Jurka                layout = findMatchingPageForDragOver(dragView, originX, originY, xOffset, yOffset);
2655d718d6a7ba424b600052a147e5633a201a04ccb7Michael Jurka
2656d718d6a7ba424b600052a147e5633a201a04ccb7Michael Jurka                if (layout != mDragTargetLayout) {
2657d718d6a7ba424b600052a147e5633a201a04ccb7Michael Jurka                    if (mDragTargetLayout != null) {
265833945b21544bc98381df17726a3537c292d8c985Michael Jurka                        mDragTargetLayout.setIsDragOverlapping(false);
2659c2f7f4794867cd1b3e97fd0f379ad8ad15958a6cMichael Jurka                        mSpringLoadedDragController.onDragExit();
2660d718d6a7ba424b600052a147e5633a201a04ccb7Michael Jurka                    }
2661d718d6a7ba424b600052a147e5633a201a04ccb7Michael Jurka                    mDragTargetLayout = layout;
26623d79192da756fa9c46215d5c39f17cd8ac7fb43eMichael Jurka                    if (mDragTargetLayout != null && mDragTargetLayout.getAcceptsDrops()) {
266333945b21544bc98381df17726a3537c292d8c985Michael Jurka                        mDragTargetLayout.setIsDragOverlapping(true);
26640bb8563b1381d92b0d7dbb5b0f814ad656c2f9bdMichael Jurka                        mSpringLoadedDragController.onDragEnter(
26650bb8563b1381d92b0d7dbb5b0f814ad656c2f9bdMichael Jurka                                mDragTargetLayout, mShrinkState == ShrinkState.SPRING_LOADED);
2666d718d6a7ba424b600052a147e5633a201a04ccb7Michael Jurka                    }
2667d718d6a7ba424b600052a147e5633a201a04ccb7Michael Jurka                }
2668d718d6a7ba424b600052a147e5633a201a04ccb7Michael Jurka            } else {
2669d718d6a7ba424b600052a147e5633a201a04ccb7Michael Jurka                layout = getCurrentDropLayout();
2670d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka                if (layout != mDragTargetLayout) {
2671d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka                    if (mDragTargetLayout != null) {
2672d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka                        mDragTargetLayout.onDragExit();
2673d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka                    }
2674d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka                    layout.onDragEnter();
2675d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka                    mDragTargetLayout = layout;
2676d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka                }
2677d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka            }
2678d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka            if (!shrunken || mShrinkState == ShrinkState.SPRING_LOADED) {
2679d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka                layout = getCurrentDropLayout();
2680d718d6a7ba424b600052a147e5633a201a04ccb7Michael Jurka
2681d718d6a7ba424b600052a147e5633a201a04ccb7Michael Jurka                final ItemInfo item = (ItemInfo)dragInfo;
2682d718d6a7ba424b600052a147e5633a201a04ccb7Michael Jurka                if (dragInfo instanceof LauncherAppWidgetInfo) {
2683d718d6a7ba424b600052a147e5633a201a04ccb7Michael Jurka                    LauncherAppWidgetInfo widgetInfo = (LauncherAppWidgetInfo)dragInfo;
2684d718d6a7ba424b600052a147e5633a201a04ccb7Michael Jurka
2685d718d6a7ba424b600052a147e5633a201a04ccb7Michael Jurka                    if (widgetInfo.spanX == -1) {
2686d718d6a7ba424b600052a147e5633a201a04ccb7Michael Jurka                        // Calculate the grid spans needed to fit this widget
2687d718d6a7ba424b600052a147e5633a201a04ccb7Michael Jurka                        int[] spans = layout.rectToCell(
2688d718d6a7ba424b600052a147e5633a201a04ccb7Michael Jurka                                widgetInfo.minWidth, widgetInfo.minHeight, null);
2689d718d6a7ba424b600052a147e5633a201a04ccb7Michael Jurka                        item.spanX = spans[0];
2690d718d6a7ba424b600052a147e5633a201a04ccb7Michael Jurka                        item.spanY = spans[1];
2691d718d6a7ba424b600052a147e5633a201a04ccb7Michael Jurka                    }
2692d718d6a7ba424b600052a147e5633a201a04ccb7Michael Jurka                }
2693a63c452f5bd491ba9b28c332ccedc6c6c7e2f3ccMichael Jurka
2694d718d6a7ba424b600052a147e5633a201a04ccb7Michael Jurka                if (source instanceof AllAppsPagedView) {
2695d718d6a7ba424b600052a147e5633a201a04ccb7Michael Jurka                    // This is a hack to fix the point used to determine which cell an icon from
2696d718d6a7ba424b600052a147e5633a201a04ccb7Michael Jurka                    // the all apps screen is over
2697d718d6a7ba424b600052a147e5633a201a04ccb7Michael Jurka                    if (item != null && item.spanX == 1 && layout != null) {
2698d718d6a7ba424b600052a147e5633a201a04ccb7Michael Jurka                        int dragRegionLeft = (dragView.getWidth() - layout.getCellWidth()) / 2;
2699d718d6a7ba424b600052a147e5633a201a04ccb7Michael Jurka
2700d718d6a7ba424b600052a147e5633a201a04ccb7Michael Jurka                        originX += dragRegionLeft - dragView.getDragRegionLeft();
2701d718d6a7ba424b600052a147e5633a201a04ccb7Michael Jurka                        if (dragView.getDragRegionWidth() != layout.getCellWidth()) {
2702d718d6a7ba424b600052a147e5633a201a04ccb7Michael Jurka                            dragView.setDragRegion(dragView.getDragRegionLeft(),
2703d718d6a7ba424b600052a147e5633a201a04ccb7Michael Jurka                                    dragView.getDragRegionTop(),
2704d718d6a7ba424b600052a147e5633a201a04ccb7Michael Jurka                                    layout.getCellWidth(),
2705d718d6a7ba424b600052a147e5633a201a04ccb7Michael Jurka                                    dragView.getDragRegionHeight());
2706d718d6a7ba424b600052a147e5633a201a04ccb7Michael Jurka                        }
2707d718d6a7ba424b600052a147e5633a201a04ccb7Michael Jurka                    }
270862bbb3c573fe902940431e4b957c0c4918358d36Patrick Dubroy                } else if (source == this) {
270962bbb3c573fe902940431e4b957c0c4918358d36Patrick Dubroy                    // When dragging from the workspace, the drag view is slightly bigger than
271062bbb3c573fe902940431e4b957c0c4918358d36Patrick Dubroy                    // the original view, and offset vertically. Adjust to account for this.
271162bbb3c573fe902940431e4b957c0c4918358d36Patrick Dubroy                    final View origView = mDragInfo.cell;
271262bbb3c573fe902940431e4b957c0c4918358d36Patrick Dubroy                    originX += (dragView.getMeasuredWidth() - origView.getWidth()) / 2;
271362bbb3c573fe902940431e4b957c0c4918358d36Patrick Dubroy                    originY += (dragView.getMeasuredHeight() - origView.getHeight()) / 2
271462bbb3c573fe902940431e4b957c0c4918358d36Patrick Dubroy                            + dragView.getOffsetY();
2715a63c452f5bd491ba9b28c332ccedc6c6c7e2f3ccMichael Jurka                }
27161262e369484ce7f2565655ed80e6299232c70bd7Patrick Dubroy
2717d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka                if (mDragTargetLayout != null) {
2718d718d6a7ba424b600052a147e5633a201a04ccb7Michael Jurka                    final View child = (mDragInfo == null) ? null : mDragInfo.cell;
2719d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka                    float[] localOrigin = { originX, originY };
2720d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka                    mapPointFromSelfToChild(mDragTargetLayout, localOrigin, null);
2721d718d6a7ba424b600052a147e5633a201a04ccb7Michael Jurka                    mDragTargetLayout.visualizeDropLocation(child, mDragOutline,
2722d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka                            (int) localOrigin[0], (int) localOrigin[1], item.spanX, item.spanY);
2723d718d6a7ba424b600052a147e5633a201a04ccb7Michael Jurka                }
27241262e369484ce7f2565655ed80e6299232c70bd7Patrick Dubroy            }
2725976ebec9e31643d3513f9f0de2b433d9aa186ce9Patrick Dubroy        }
272631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
272731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
2728e3887cc4ec3cebda2333298e56a35acb49ccdf13Patrick Dubroy    private void doDragExit() {
2729d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka        mWasSpringLoadedOnDragExit = mShrinkState == ShrinkState.SPRING_LOADED;
27306569f2c80e179c2f8ed73dae6b01d971ec20f005Patrick Dubroy        if (mDragTargetLayout != null) {
27310280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka            mDragTargetLayout.onDragExit();
27326569f2c80e179c2f8ed73dae6b01d971ec20f005Patrick Dubroy        }
27331262e369484ce7f2565655ed80e6299232c70bd7Patrick Dubroy        if (!mIsPageMoving) {
27341262e369484ce7f2565655ed80e6299232c70bd7Patrick Dubroy            hideOutlines();
27351262e369484ce7f2565655ed80e6299232c70bd7Patrick Dubroy        }
2736d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka        if (mShrinkState == ShrinkState.SPRING_LOADED) {
2737d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka            mLauncher.exitSpringLoadedDragMode();
2738d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka        }
273908ae2ec4847a971ad1b19c163e3a0d6307a8ed72Patrick Dubroy        clearAllHovers();
274031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
274131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
2742e3887cc4ec3cebda2333298e56a35acb49ccdf13Patrick Dubroy    public void onDragExit(DragSource source, int x, int y, int xOffset,
2743e3887cc4ec3cebda2333298e56a35acb49ccdf13Patrick Dubroy            int yOffset, DragView dragView, Object dragInfo) {
2744e3887cc4ec3cebda2333298e56a35acb49ccdf13Patrick Dubroy        doDragExit();
2745e3887cc4ec3cebda2333298e56a35acb49ccdf13Patrick Dubroy    }
2746e3887cc4ec3cebda2333298e56a35acb49ccdf13Patrick Dubroy
2747a34abf8c781485b788fddacb352d586bffca886cWinson Chung    @Override
2748a34abf8c781485b788fddacb352d586bffca886cWinson Chung    public void getHitRect(Rect outRect) {
2749a34abf8c781485b788fddacb352d586bffca886cWinson Chung        // We want the workspace to have the whole area of the display (it will find the correct
2750a34abf8c781485b788fddacb352d586bffca886cWinson Chung        // cell layout to drop to in the existing drag/drop logic.
2751a34abf8c781485b788fddacb352d586bffca886cWinson Chung        final Display d = mLauncher.getWindowManager().getDefaultDisplay();
2752a34abf8c781485b788fddacb352d586bffca886cWinson Chung        outRect.set(0, 0, d.getWidth(), d.getHeight());
2753a34abf8c781485b788fddacb352d586bffca886cWinson Chung    }
2754a34abf8c781485b788fddacb352d586bffca886cWinson Chung
27552b9ff37edb3f5965559b3ff7d37e418b4a2917a1Patrick Dubroy    /**
27562b9ff37edb3f5965559b3ff7d37e418b4a2917a1Patrick Dubroy     * Add the item specified by dragInfo to the given layout.
27572b9ff37edb3f5965559b3ff7d37e418b4a2917a1Patrick Dubroy     * @return true if successful
27582b9ff37edb3f5965559b3ff7d37e418b4a2917a1Patrick Dubroy     */
2759120980bd00f5eecec5717f49a3d7db96571025a9Adam Cohen    public boolean addExternalItemToScreen(ItemInfo dragInfo, CellLayout layout) {
2760120980bd00f5eecec5717f49a3d7db96571025a9Adam Cohen        if (layout.findCellForSpan(mTempEstimate, dragInfo.spanX, dragInfo.spanY)) {
2761c4e772e4b3f21bde342e475ebc49b5b76b8f74e8Michael Jurka            onDropExternal(null, (ItemInfo) dragInfo, (CellLayout) layout, false);
27622b9ff37edb3f5965559b3ff7d37e418b4a2917a1Patrick Dubroy            return true;
27632b9ff37edb3f5965559b3ff7d37e418b4a2917a1Patrick Dubroy        }
27640280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka        mLauncher.showOutOfSpaceMessage();
27652b9ff37edb3f5965559b3ff7d37e418b4a2917a1Patrick Dubroy        return false;
27662b9ff37edb3f5965559b3ff7d37e418b4a2917a1Patrick Dubroy    }
27672b9ff37edb3f5965559b3ff7d37e418b4a2917a1Patrick Dubroy
2768120980bd00f5eecec5717f49a3d7db96571025a9Adam Cohen    /**
2769120980bd00f5eecec5717f49a3d7db96571025a9Adam Cohen     * Drop an item that didn't originate on one of the workspace screens.
2770120980bd00f5eecec5717f49a3d7db96571025a9Adam Cohen     * It may have come from Launcher (e.g. from all apps or customize), or it may have
2771120980bd00f5eecec5717f49a3d7db96571025a9Adam Cohen     * come from another app altogether.
2772120980bd00f5eecec5717f49a3d7db96571025a9Adam Cohen     *
2773120980bd00f5eecec5717f49a3d7db96571025a9Adam Cohen     * NOTE: This can also be called when we are outside of a drag event, when we want
2774120980bd00f5eecec5717f49a3d7db96571025a9Adam Cohen     * to add an item to one of the workspace screens.
2775120980bd00f5eecec5717f49a3d7db96571025a9Adam Cohen     */
2776c4e772e4b3f21bde342e475ebc49b5b76b8f74e8Michael Jurka    private void onDropExternal(int[] touchXY, Object dragInfo,
2777aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung            CellLayout cellLayout, boolean insertAtFirst) {
27780280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka        int screen = indexOfChild(cellLayout);
27790280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka        if (dragInfo instanceof PendingAddItemInfo) {
27800280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka            PendingAddItemInfo info = (PendingAddItemInfo) dragInfo;
27810280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka            // When dragging and dropping from customization tray, we deal with creating
27820280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka            // widgets/shortcuts/folders in a slightly different way
27830280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka            switch (info.itemType) {
27840280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka                case LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET:
278555cef262f97749300c2f6e764da0b00cbcb78879Winson Chung                    mLauncher.addAppWidgetFromDrop((PendingAddWidgetInfo) info, screen, touchXY);
27860280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka                    break;
27870280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka                case LauncherSettings.Favorites.ITEM_TYPE_LIVE_FOLDER:
27880280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka                    mLauncher.addLiveFolderFromDrop(info.componentName, screen, touchXY);
27890280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka                    break;
27900280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka                case LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT:
27910280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka                    mLauncher.processShortcutFromDrop(info.componentName, screen, touchXY);
27920280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka                    break;
27930280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka                default:
27940280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka                    throw new IllegalStateException("Unknown item type: " + info.itemType);
27950280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka            }
27960280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka            cellLayout.onDragExit();
27979c6de3d7c3e7d40e1e443b6fd69e3077ab9e9673Michael Jurka        } else {
27989c6de3d7c3e7d40e1e443b6fd69e3077ab9e9673Michael Jurka            // This is for other drag/drop cases, like dragging from All Apps
27999c6de3d7c3e7d40e1e443b6fd69e3077ab9e9673Michael Jurka            ItemInfo info = (ItemInfo) dragInfo;
28009c6de3d7c3e7d40e1e443b6fd69e3077ab9e9673Michael Jurka            View view = null;
280131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
28029c6de3d7c3e7d40e1e443b6fd69e3077ab9e9673Michael Jurka            switch (info.itemType) {
28039c6de3d7c3e7d40e1e443b6fd69e3077ab9e9673Michael Jurka            case LauncherSettings.Favorites.ITEM_TYPE_APPLICATION:
28049c6de3d7c3e7d40e1e443b6fd69e3077ab9e9673Michael Jurka            case LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT:
28059c6de3d7c3e7d40e1e443b6fd69e3077ab9e9673Michael Jurka                if (info.container == NO_ID && info instanceof ApplicationInfo) {
28069c6de3d7c3e7d40e1e443b6fd69e3077ab9e9673Michael Jurka                    // Came from all apps -- make a copy
28079c6de3d7c3e7d40e1e443b6fd69e3077ab9e9673Michael Jurka                    info = new ShortcutInfo((ApplicationInfo) info);
28089c6de3d7c3e7d40e1e443b6fd69e3077ab9e9673Michael Jurka                }
28099c6de3d7c3e7d40e1e443b6fd69e3077ab9e9673Michael Jurka                view = mLauncher.createShortcut(R.layout.application, cellLayout,
28109c6de3d7c3e7d40e1e443b6fd69e3077ab9e9673Michael Jurka                        (ShortcutInfo) info);
28119c6de3d7c3e7d40e1e443b6fd69e3077ab9e9673Michael Jurka                break;
28129c6de3d7c3e7d40e1e443b6fd69e3077ab9e9673Michael Jurka            case LauncherSettings.Favorites.ITEM_TYPE_USER_FOLDER:
28139c6de3d7c3e7d40e1e443b6fd69e3077ab9e9673Michael Jurka                view = FolderIcon.fromXml(R.layout.folder_icon, mLauncher,
28149c6de3d7c3e7d40e1e443b6fd69e3077ab9e9673Michael Jurka                        cellLayout, (UserFolderInfo) info, mIconCache);
28159c6de3d7c3e7d40e1e443b6fd69e3077ab9e9673Michael Jurka                break;
28169c6de3d7c3e7d40e1e443b6fd69e3077ab9e9673Michael Jurka            default:
28179c6de3d7c3e7d40e1e443b6fd69e3077ab9e9673Michael Jurka                throw new IllegalStateException("Unknown item type: " + info.itemType);
28189c6de3d7c3e7d40e1e443b6fd69e3077ab9e9673Michael Jurka            }
281931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
28209c6de3d7c3e7d40e1e443b6fd69e3077ab9e9673Michael Jurka            mTargetCell = new int[2];
2821c4e772e4b3f21bde342e475ebc49b5b76b8f74e8Michael Jurka            if (touchXY != null) {
28229c6de3d7c3e7d40e1e443b6fd69e3077ab9e9673Michael Jurka                // when dragging and dropping, just find the closest free spot
2823c4e772e4b3f21bde342e475ebc49b5b76b8f74e8Michael Jurka                cellLayout.findNearestVacantArea(touchXY[0], touchXY[1], 1, 1, mTargetCell);
28249c6de3d7c3e7d40e1e443b6fd69e3077ab9e9673Michael Jurka            } else {
28259c6de3d7c3e7d40e1e443b6fd69e3077ab9e9673Michael Jurka                cellLayout.findCellForSpan(mTargetCell, 1, 1);
282631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            }
2827aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung            addInScreen(view, indexOfChild(cellLayout), mTargetCell[0],
2828aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung                    mTargetCell[1], info.spanX, info.spanY, insertAtFirst);
2829d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka            boolean animateDrop = !mWasSpringLoadedOnDragExit;
2830d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka            cellLayout.onDropChild(view, animateDrop);
2831d3ef3065ab0941567c45e9aec98783138b623c68Michael Jurka            cellLayout.animateDrop();
28326569f2c80e179c2f8ed73dae6b01d971ec20f005Patrick Dubroy            CellLayout.LayoutParams lp = (CellLayout.LayoutParams) view.getLayoutParams();
283331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
2834af44209bfa60da3c7ab49b7f508f9effd316ee41Michael Jurka            LauncherModel.addOrMoveItemInDatabase(mLauncher, info,
28350280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka                    LauncherSettings.Favorites.CONTAINER_DESKTOP, screen,
2836aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung                    lp.cellX, lp.cellY);
2837af44209bfa60da3c7ab49b7f508f9effd316ee41Michael Jurka        }
283831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
2839aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung
284070864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey    /**
284170864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey     * Return the current {@link CellLayout}, correctly picking the destination
284270864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey     * screen while a scroll is in progress.
284370864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey     */
28445f445425606b2c27276a79e9e871cf7f67b1b719Patrick Dubroy    public CellLayout getCurrentDropLayout() {
28455f445425606b2c27276a79e9e871cf7f67b1b719Patrick Dubroy        return (CellLayout) getChildAt(mNextPage == INVALID_PAGE ? mCurrentPage : mNextPage);
284670864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey    }
284731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
284870864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey    /**
28490280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka     * Return the current CellInfo describing our current drag; this method exists
28500280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka     * so that Launcher can sync this object with the correct info when the activity is created/
28510280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka     * destroyed
28520280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka     *
28530280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka     */
28540280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka    public CellLayout.CellInfo getDragInfo() {
28550280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka        return mDragInfo;
28560280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka    }
28570280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka
28580280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka    /**
285970864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey     * Calculate the nearest cell where the given object would be dropped.
286070864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey     */
28616a1435d78d5133b1f37274c4d358bf6d22e10229Michael Jurka    private int[] findNearestVacantArea(int pixelX, int pixelY,
286270864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey            int spanX, int spanY, View ignoreView, CellLayout layout, int[] recycle) {
28636569f2c80e179c2f8ed73dae6b01d971ec20f005Patrick Dubroy
28645f1c509d5ad1954a7e38e77db4d5f27c7345fd39Michael Jurka        int localPixelX = pixelX - (layout.getLeft() - mScrollX);
28655f1c509d5ad1954a7e38e77db4d5f27c7345fd39Michael Jurka        int localPixelY = pixelY - (layout.getTop() - mScrollY);
28666569f2c80e179c2f8ed73dae6b01d971ec20f005Patrick Dubroy
286770864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey        // Find the best target drop location
28680280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka        return layout.findNearestVacantArea(
2869fc9f07d42511231a26fa182c32e2efaa0f41d478Michael Jurka                localPixelX, localPixelY, spanX, spanY, ignoreView, recycle);
287070864289fba6daf07b8de98524cdfb765a62552dJeff Sharkey    }
2871aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung
287231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    void setLauncher(Launcher launcher) {
287331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        mLauncher = launcher;
2874c2f7f4794867cd1b3e97fd0f379ad8ad15958a6cMichael Jurka        mSpringLoadedDragController = new SpringLoadedDragController(mLauncher);
287588127038178b3bbf0eb91103a31e682cc0615074Winson Chung
287688127038178b3bbf0eb91103a31e682cc0615074Winson Chung        mCustomizationDrawer = mLauncher.findViewById(R.id.customization_drawer);
2877760e5375f003accf04f789e90a919ed476d4c335Winson Chung        if (mCustomizationDrawer != null) {
2878760e5375f003accf04f789e90a919ed476d4c335Winson Chung            mCustomizationDrawerContent =
2879760e5375f003accf04f789e90a919ed476d4c335Winson Chung                mCustomizationDrawer.findViewById(com.android.internal.R.id.tabcontent);
2880760e5375f003accf04f789e90a919ed476d4c335Winson Chung        }
288131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
288231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
288300acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato    public void setDragController(DragController dragController) {
288400acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato        mDragController = dragController;
288531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
288631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
2887e3887cc4ec3cebda2333298e56a35acb49ccdf13Patrick Dubroy    /**
2888e3887cc4ec3cebda2333298e56a35acb49ccdf13Patrick Dubroy     * Called at the end of a drag which originated on the workspace.
2889e3887cc4ec3cebda2333298e56a35acb49ccdf13Patrick Dubroy     */
28905f445425606b2c27276a79e9e871cf7f67b1b719Patrick Dubroy    public void onDropCompleted(View target, Object dragInfo, boolean success) {
2891aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung        if (success) {
289231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            if (target != this && mDragInfo != null) {
289331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                final CellLayout cellLayout = (CellLayout) getChildAt(mDragInfo.screen);
289431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                cellLayout.removeView(mDragInfo.cell);
289500acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato                if (mDragInfo.cell instanceof DropTarget) {
289600acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato                    mDragController.removeDropTarget((DropTarget)mDragInfo.cell);
289700acb123c5100f06b8e89e8ec8978ebafc6f6d26Joe Onorato                }
2898aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung                // final Object tag = mDragInfo.cell.getTag();
289931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            }
2900ce34a9768b01115def95f000a6a8f35870f10d3aPatrick Dubroy        } else if (mDragInfo != null) {
2901e3887cc4ec3cebda2333298e56a35acb49ccdf13Patrick Dubroy            // NOTE: When 'success' is true, onDragExit is called by the DragController before
2902e3887cc4ec3cebda2333298e56a35acb49ccdf13Patrick Dubroy            // calling onDropCompleted(). We call it ourselves here, but maybe this should be
2903e3887cc4ec3cebda2333298e56a35acb49ccdf13Patrick Dubroy            // moved into DragController.cancelDrag().
2904e3887cc4ec3cebda2333298e56a35acb49ccdf13Patrick Dubroy            doDragExit();
2905e3887cc4ec3cebda2333298e56a35acb49ccdf13Patrick Dubroy            ((CellLayout) getChildAt(mDragInfo.screen)).onDropChild(mDragInfo.cell, false);
290631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
2907400438b79fe412cb625c96297edeea9c6155349eWinson Chung        mLauncher.unlockScreenOrientation();
29084be866d3a1665aa2098cb5d38d535b1ad1aab6d6Joe Onorato        mDragOutline = null;
290931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        mDragInfo = null;
291031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
291131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
2912a669d79d0dcf034651ce305a8cd334272bec3374Patrick Dubroy    @Override
2913a669d79d0dcf034651ce305a8cd334272bec3374Patrick Dubroy    public void onDragViewVisible() {
2914a669d79d0dcf034651ce305a8cd334272bec3374Patrick Dubroy        ((View) mDragInfo.cell).setVisibility(View.GONE);
2915a669d79d0dcf034651ce305a8cd334272bec3374Patrick Dubroy    }
2916a669d79d0dcf034651ce305a8cd334272bec3374Patrick Dubroy
29170280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka    public boolean isDropEnabled() {
29180280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka        return true;
29190280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka    }
29200280c3be4d9f8fc6fdf015b7ecd276eb26f76f2dMichael Jurka
29210142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka    @Override
29220142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka    protected void onRestoreInstanceState(Parcelable state) {
29230142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka        super.onRestoreInstanceState(state);
29240142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka        Launcher.setScreen(mCurrentPage);
29250142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka    }
29260142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka
29270142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka    @Override
292831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    public void scrollLeft() {
2929c0e8fcae492730210b2b8b6d5bb3d65636bad245Michael Jurka        if (!mIsSmall && !mIsInUnshrinkAnimation) {
29300142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka            super.scrollLeft();
293131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
293231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
293331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
29340142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka    @Override
293531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    public void scrollRight() {
2936c0e8fcae492730210b2b8b6d5bb3d65636bad245Michael Jurka        if (!mIsSmall && !mIsInUnshrinkAnimation) {
29370142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka            super.scrollRight();
293831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
293931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
2940138a04170d964da9cdec228e95b976875ae52481Karl Rosaen
29411262e369484ce7f2565655ed80e6299232c70bd7Patrick Dubroy    @Override
29421262e369484ce7f2565655ed80e6299232c70bd7Patrick Dubroy    public void onEnterScrollArea(int direction) {
2943d718d6a7ba424b600052a147e5633a201a04ccb7Michael Jurka        if (!mIsSmall && !mIsInUnshrinkAnimation) {
2944d718d6a7ba424b600052a147e5633a201a04ccb7Michael Jurka            mInScrollArea = true;
294554fa3b95557c283976e8c1aa8a157b460b0b4513Patrick Dubroy            mPendingScrollDirection = direction;
294654fa3b95557c283976e8c1aa8a157b460b0b4513Patrick Dubroy
294754fa3b95557c283976e8c1aa8a157b460b0b4513Patrick Dubroy            final int page = mCurrentPage + (direction == DragController.SCROLL_LEFT ? -1 : 1);
294854fa3b95557c283976e8c1aa8a157b460b0b4513Patrick Dubroy            final CellLayout layout = (CellLayout) getChildAt(page);
294954fa3b95557c283976e8c1aa8a157b460b0b4513Patrick Dubroy
295054fa3b95557c283976e8c1aa8a157b460b0b4513Patrick Dubroy            if (layout != null) {
295133945b21544bc98381df17726a3537c292d8c985Michael Jurka                layout.setIsDragOverlapping(true);
29521262e369484ce7f2565655ed80e6299232c70bd7Patrick Dubroy
29530207c522472d7252f146f4d39efa456ca5248c6bPatrick Dubroy                if (mDragTargetLayout != null) {
29540207c522472d7252f146f4d39efa456ca5248c6bPatrick Dubroy                    mDragTargetLayout.onDragExit();
29550207c522472d7252f146f4d39efa456ca5248c6bPatrick Dubroy                    mDragTargetLayout = null;
29560207c522472d7252f146f4d39efa456ca5248c6bPatrick Dubroy                }
295770b9530f3147663d38875260b48d931793b7d378Patrick Dubroy                // In portrait, need to redraw the edge glow when entering the scroll area
295870b9530f3147663d38875260b48d931793b7d378Patrick Dubroy                if (getHeight() > getWidth()) {
295970b9530f3147663d38875260b48d931793b7d378Patrick Dubroy                    invalidate();
296070b9530f3147663d38875260b48d931793b7d378Patrick Dubroy                }
2961d718d6a7ba424b600052a147e5633a201a04ccb7Michael Jurka            }
29621262e369484ce7f2565655ed80e6299232c70bd7Patrick Dubroy        }
29631262e369484ce7f2565655ed80e6299232c70bd7Patrick Dubroy    }
29641262e369484ce7f2565655ed80e6299232c70bd7Patrick Dubroy
296508ae2ec4847a971ad1b19c163e3a0d6307a8ed72Patrick Dubroy    private void clearAllHovers() {
296608ae2ec4847a971ad1b19c163e3a0d6307a8ed72Patrick Dubroy        final int childCount = getChildCount();
296708ae2ec4847a971ad1b19c163e3a0d6307a8ed72Patrick Dubroy        for (int i = 0; i < childCount; i++) {
296833945b21544bc98381df17726a3537c292d8c985Michael Jurka            ((CellLayout) getChildAt(i)).setIsDragOverlapping(false);
296908ae2ec4847a971ad1b19c163e3a0d6307a8ed72Patrick Dubroy        }
2970c2f7f4794867cd1b3e97fd0f379ad8ad15958a6cMichael Jurka        mSpringLoadedDragController.onDragExit();
297170b9530f3147663d38875260b48d931793b7d378Patrick Dubroy
297270b9530f3147663d38875260b48d931793b7d378Patrick Dubroy        // In portrait, workspace is responsible for drawing the edge glow on adjacent pages,
297370b9530f3147663d38875260b48d931793b7d378Patrick Dubroy        // so we need to redraw the workspace when this may have changed.
297470b9530f3147663d38875260b48d931793b7d378Patrick Dubroy        if (getHeight() > getWidth()) {
297570b9530f3147663d38875260b48d931793b7d378Patrick Dubroy            invalidate();
297670b9530f3147663d38875260b48d931793b7d378Patrick Dubroy        }
297708ae2ec4847a971ad1b19c163e3a0d6307a8ed72Patrick Dubroy    }
297808ae2ec4847a971ad1b19c163e3a0d6307a8ed72Patrick Dubroy
29791262e369484ce7f2565655ed80e6299232c70bd7Patrick Dubroy    @Override
29801262e369484ce7f2565655ed80e6299232c70bd7Patrick Dubroy    public void onExitScrollArea() {
2981d718d6a7ba424b600052a147e5633a201a04ccb7Michael Jurka        if (mInScrollArea) {
2982d718d6a7ba424b600052a147e5633a201a04ccb7Michael Jurka            mInScrollArea = false;
298354fa3b95557c283976e8c1aa8a157b460b0b4513Patrick Dubroy            mPendingScrollDirection = DragController.SCROLL_NONE;
298408ae2ec4847a971ad1b19c163e3a0d6307a8ed72Patrick Dubroy            clearAllHovers();
29851262e369484ce7f2565655ed80e6299232c70bd7Patrick Dubroy        }
29861262e369484ce7f2565655ed80e6299232c70bd7Patrick Dubroy    }
29871262e369484ce7f2565655ed80e6299232c70bd7Patrick Dubroy
298831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    public Folder getFolderForTag(Object tag) {
2989dee0589388ba0f6373912e18bf86243282fb3b9bMichael Jurka        final int screenCount = getChildCount();
299031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        for (int screen = 0; screen < screenCount; screen++) {
29916e3140865d3f0def2e55934d8b0b2c1503386e54Winson Chung            ViewGroup currentScreen = ((CellLayout) getChildAt(screen)).getChildrenLayout();
299231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            int count = currentScreen.getChildCount();
299331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            for (int i = 0; i < count; i++) {
299431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                View child = currentScreen.getChildAt(i);
299531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                CellLayout.LayoutParams lp = (CellLayout.LayoutParams) child.getLayoutParams();
299631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                if (lp.cellHSpan == 4 && lp.cellVSpan == 4 && child instanceof Folder) {
299731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                    Folder f = (Folder) child;
2998aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung                    if (f.getInfo() == tag && f.getInfo().opened) {
299931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                        return f;
300031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                    }
300131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                }
300231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            }
300331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
300431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        return null;
300531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
300631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
300731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    public View getViewForTag(Object tag) {
300831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        int screenCount = getChildCount();
300931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        for (int screen = 0; screen < screenCount; screen++) {
30106e3140865d3f0def2e55934d8b0b2c1503386e54Winson Chung            ViewGroup currentScreen = ((CellLayout) getChildAt(screen)).getChildrenLayout();
301131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            int count = currentScreen.getChildCount();
301231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            for (int i = 0; i < count; i++) {
301331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                View child = currentScreen.getChildAt(i);
301431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                if (child.getTag() == tag) {
301531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                    return child;
301631dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                }
301731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project            }
301831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
301931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        return null;
302031dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
302131dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
302231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
302364e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato    void removeItems(final ArrayList<ApplicationInfo> apps) {
3024dee0589388ba0f6373912e18bf86243282fb3b9bMichael Jurka        final int screenCount = getChildCount();
30255c16f3ecd6b47bff3abbe40deb3d39c66a3b0012Romain Guy        final PackageManager manager = getContext().getPackageManager();
3026629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy        final AppWidgetManager widgets = AppWidgetManager.getInstance(getContext());
3027574d20ec84551370987dde530c27ec493bdef564Romain Guy
302864e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato        final HashSet<String> packageNames = new HashSet<String>();
302964e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato        final int appCount = apps.size();
303064e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato        for (int i = 0; i < appCount; i++) {
303164e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato            packageNames.add(apps.get(i).componentName.getPackageName());
303264e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato        }
303364e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato
3034dee0589388ba0f6373912e18bf86243282fb3b9bMichael Jurka        for (int i = 0; i < screenCount; i++) {
30357a25a9e39a13df706daeb0a4a82273f3c5151997Winson Chung            final CellLayout layoutParent = (CellLayout) getChildAt(i);
30367a25a9e39a13df706daeb0a4a82273f3c5151997Winson Chung            final ViewGroup layout = layoutParent.getChildrenLayout();
3037629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy
3038629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy            // Avoid ANRs by treating each screen separately
3039629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy            post(new Runnable() {
3040629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                public void run() {
3041629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                    final ArrayList<View> childrenToRemove = new ArrayList<View>();
3042629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                    childrenToRemove.clear();
3043aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung
3044629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                    int childCount = layout.getChildCount();
3045629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                    for (int j = 0; j < childCount; j++) {
3046629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                        final View view = layout.getChildAt(j);
3047629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                        Object tag = view.getTag();
3048aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung
30490589f0f66ce498512c6ee47482c649d88294c9d0Joe Onorato                        if (tag instanceof ShortcutInfo) {
30500589f0f66ce498512c6ee47482c649d88294c9d0Joe Onorato                            final ShortcutInfo info = (ShortcutInfo) tag;
3051629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                            final Intent intent = info.intent;
3052629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                            final ComponentName name = intent.getComponent();
3053aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung
305464e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato                            if (Intent.ACTION_MAIN.equals(intent.getAction()) && name != null) {
305564e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato                                for (String packageName: packageNames) {
305664e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato                                    if (packageName.equals(name.getPackageName())) {
305764e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato                                        LauncherModel.deleteItemFromDatabase(mLauncher, info);
305864e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato                                        childrenToRemove.add(view);
305964e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato                                    }
306064e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato                                }
3061629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                            }
3062629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                        } else if (tag instanceof UserFolderInfo) {
3063629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                            final UserFolderInfo info = (UserFolderInfo) tag;
30640589f0f66ce498512c6ee47482c649d88294c9d0Joe Onorato                            final ArrayList<ShortcutInfo> contents = info.contents;
30650589f0f66ce498512c6ee47482c649d88294c9d0Joe Onorato                            final ArrayList<ShortcutInfo> toRemove = new ArrayList<ShortcutInfo>(1);
3066629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                            final int contentsCount = contents.size();
3067629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                            boolean removedFromFolder = false;
3068aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung
3069629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                            for (int k = 0; k < contentsCount; k++) {
30700589f0f66ce498512c6ee47482c649d88294c9d0Joe Onorato                                final ShortcutInfo appInfo = contents.get(k);
3071629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                                final Intent intent = appInfo.intent;
3072629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                                final ComponentName name = intent.getComponent();
3073aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung
307464e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato                                if (Intent.ACTION_MAIN.equals(intent.getAction()) && name != null) {
307564e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato                                    for (String packageName: packageNames) {
307664e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato                                        if (packageName.equals(name.getPackageName())) {
307764e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato                                            toRemove.add(appInfo);
307873013bf94f49ffbacba2b8300f6a2dd4eeebbd13Brad Fitzpatrick                                            LauncherModel.deleteItemFromDatabase(mLauncher, appInfo);
307964e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato                                            removedFromFolder = true;
308064e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato                                        }
308164e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato                                    }
3082629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                                }
3083629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                            }
3084aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung
3085629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                            contents.removeAll(toRemove);
3086629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                            if (removedFromFolder) {
3087629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                                final Folder folder = getOpenFolder();
3088aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung                                if (folder != null)
3089aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung                                    folder.notifyDataSetChanged();
3090629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                            }
3091629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                        } else if (tag instanceof LiveFolderInfo) {
3092629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                            final LiveFolderInfo info = (LiveFolderInfo) tag;
3093629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                            final Uri uri = info.uri;
3094629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                            final ProviderInfo providerInfo = manager.resolveContentProvider(
3095629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                                    uri.getAuthority(), 0);
3096629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy
3097f11079b11e98912ed56546eaa300efd06c6eb917Joe Onorato                            if (providerInfo != null) {
309864e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato                                for (String packageName: packageNames) {
309964e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato                                    if (packageName.equals(providerInfo.packageName)) {
310064e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato                                        LauncherModel.deleteItemFromDatabase(mLauncher, info);
3101aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung                                        childrenToRemove.add(view);
310264e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato                                    }
310364e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato                                }
3104629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                            }
3105629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                        } else if (tag instanceof LauncherAppWidgetInfo) {
3106629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                            final LauncherAppWidgetInfo info = (LauncherAppWidgetInfo) tag;
3107629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                            final AppWidgetProviderInfo provider =
3108629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                                    widgets.getAppWidgetInfo(info.appWidgetId);
3109e1cc6c3745c9ba721b6ab888d74c9d9e1d13ea6aDaniel Sandler                            if (provider != null) {
311064e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato                                for (String packageName: packageNames) {
311164e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato                                    if (packageName.equals(provider.provider.getPackageName())) {
311264e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato                                        LauncherModel.deleteItemFromDatabase(mLauncher, info);
3113aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung                                        childrenToRemove.add(view);
311464e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato                                    }
311564e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato                                }
3116629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                            }
3117574d20ec84551370987dde530c27ec493bdef564Romain Guy                        }
3118574d20ec84551370987dde530c27ec493bdef564Romain Guy                    }
3119aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung
3120629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                    childCount = childrenToRemove.size();
3121629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                    for (int j = 0; j < childCount; j++) {
3122629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                        View child = childrenToRemove.get(j);
31237a25a9e39a13df706daeb0a4a82273f3c5151997Winson Chung                        // Note: We can not remove the view directly from CellLayoutChildren as this
31247a25a9e39a13df706daeb0a4a82273f3c5151997Winson Chung                        // does not re-mark the spaces as unoccupied.
31257a25a9e39a13df706daeb0a4a82273f3c5151997Winson Chung                        layoutParent.removeViewInLayout(child);
3126629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                        if (child instanceof DropTarget) {
3127629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                            mDragController.removeDropTarget((DropTarget)child);
3128629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                        }
3129574d20ec84551370987dde530c27ec493bdef564Romain Guy                    }
3130aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung
3131629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                    if (childCount > 0) {
3132629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                        layout.requestLayout();
3133629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy                        layout.invalidate();
31345c16f3ecd6b47bff3abbe40deb3d39c66a3b0012Romain Guy                    }
313531dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project                }
3136629de3ef739883c0962423cc0c3a26299f162d3dRomain Guy            });
313731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project        }
313831dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
3139f96811cdf564469a7a654a0c876288c9fd14f35eThe Android Open Source Project
314064e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato    void updateShortcuts(ArrayList<ApplicationInfo> apps) {
3141dee0589388ba0f6373912e18bf86243282fb3b9bMichael Jurka        final int screenCount = getChildCount();
3142dee0589388ba0f6373912e18bf86243282fb3b9bMichael Jurka        for (int i = 0; i < screenCount; i++) {
31436e3140865d3f0def2e55934d8b0b2c1503386e54Winson Chung            final ViewGroup layout = ((CellLayout) getChildAt(i)).getChildrenLayout();
3144f96811cdf564469a7a654a0c876288c9fd14f35eThe Android Open Source Project            int childCount = layout.getChildCount();
3145f96811cdf564469a7a654a0c876288c9fd14f35eThe Android Open Source Project            for (int j = 0; j < childCount; j++) {
3146f96811cdf564469a7a654a0c876288c9fd14f35eThe Android Open Source Project                final View view = layout.getChildAt(j);
3147f96811cdf564469a7a654a0c876288c9fd14f35eThe Android Open Source Project                Object tag = view.getTag();
31480589f0f66ce498512c6ee47482c649d88294c9d0Joe Onorato                if (tag instanceof ShortcutInfo) {
31490589f0f66ce498512c6ee47482c649d88294c9d0Joe Onorato                    ShortcutInfo info = (ShortcutInfo)tag;
3150f96811cdf564469a7a654a0c876288c9fd14f35eThe Android Open Source Project                    // We need to check for ACTION_MAIN otherwise getComponent() might
3151f96811cdf564469a7a654a0c876288c9fd14f35eThe Android Open Source Project                    // return null for some shortcuts (for instance, for shortcuts to
3152f96811cdf564469a7a654a0c876288c9fd14f35eThe Android Open Source Project                    // web pages.)
3153f96811cdf564469a7a654a0c876288c9fd14f35eThe Android Open Source Project                    final Intent intent = info.intent;
3154f96811cdf564469a7a654a0c876288c9fd14f35eThe Android Open Source Project                    final ComponentName name = intent.getComponent();
3155f96811cdf564469a7a654a0c876288c9fd14f35eThe Android Open Source Project                    if (info.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPLICATION &&
315664e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato                            Intent.ACTION_MAIN.equals(intent.getAction()) && name != null) {
315764e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato                        final int appCount = apps.size();
3158aafa03cbb925c74be1c13f8bb99d928be429e62fWinson Chung                        for (int k = 0; k < appCount; k++) {
315964e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato                            ApplicationInfo app = apps.get(k);
316064e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato                            if (app.componentName.equals(name)) {
316164e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato                                info.setIcon(mIconCache.getIcon(info.intent));
316264e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato                                ((TextView)view).setCompoundDrawablesWithIntrinsicBounds(null,
316364e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato                                        new FastBitmapDrawable(info.getIcon(mIconCache)),
316464e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato                                        null, null);
316564e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato                                }
316664e6be78dc72e1a89fe8fb95c502586f9260df28Joe Onorato                        }
3167f96811cdf564469a7a654a0c876288c9fd14f35eThe Android Open Source Project                    }
3168f96811cdf564469a7a654a0c876288c9fd14f35eThe Android Open Source Project                }
3169f96811cdf564469a7a654a0c876288c9fd14f35eThe Android Open Source Project            }
3170f96811cdf564469a7a654a0c876288c9fd14f35eThe Android Open Source Project        }
3171f96811cdf564469a7a654a0c876288c9fd14f35eThe Android Open Source Project    }
3172f96811cdf564469a7a654a0c876288c9fd14f35eThe Android Open Source Project
317314f122bf847e50a3e7730ccbe57abc25d086a01bJoe Onorato    void moveToDefaultScreen(boolean animate) {
3174c0e8fcae492730210b2b8b6d5bb3d65636bad245Michael Jurka        if (mIsSmall || mIsInUnshrinkAnimation) {
3175c0e8fcae492730210b2b8b6d5bb3d65636bad245Michael Jurka            mLauncher.showWorkspace(animate, (CellLayout)getChildAt(mDefaultPage));
3176c0e8fcae492730210b2b8b6d5bb3d65636bad245Michael Jurka        } else if (animate) {
3177c0e8fcae492730210b2b8b6d5bb3d65636bad245Michael Jurka            snapToPage(mDefaultPage);
3178c45b16862918a0c6c253bba12032165b030565afJoe Onorato        } else {
31790142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka            setCurrentPage(mDefaultPage);
3180c45b16862918a0c6c253bba12032165b030565afJoe Onorato        }
31810142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka        getChildAt(mDefaultPage).requestFocus();
318231dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
318331dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
31848a73c51ee87b6d9b12daba188034889caf7a905bRomain Guy    void setIndicators(Drawable previous, Drawable next) {
31858a73c51ee87b6d9b12daba188034889caf7a905bRomain Guy        mPreviousIndicator = previous;
31868a73c51ee87b6d9b12daba188034889caf7a905bRomain Guy        mNextIndicator = next;
31870142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka        previous.setLevel(mCurrentPage);
31880142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka        next.setLevel(mCurrentPage);
31898a73c51ee87b6d9b12daba188034889caf7a905bRomain Guy    }
31908a73c51ee87b6d9b12daba188034889caf7a905bRomain Guy
31910142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka    @Override
31920142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka    public void syncPages() {
31930142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka    }
319431dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project
31950142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka    @Override
31960142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka    public void syncPageItems(int page) {
319731dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project    }
31980142d49e1378a7155bcca1fb59965d9e73016dbcMichael Jurka
319931dd503c6aa69018e694d91724d46db49ea09327The Android Open Source Project}
3200